source: patches/linux-2.6.20-cobalt_x86-1.patch@ 2c6d8c4

linux-2.6.20

@@ -206 +206 @@
 KBUILD_MODULES :=
 KBUILD_BUILTIN := 1
 
+DRIVERS-$(CONFIG_COBALT_RAQ) += drivers/cobalt/cobalt.o
 #       If we have only "make modules", don't compile built-in objects.
 #       When we're building modules with modversions, we need to consider
 #       the built-in objects during the descend as well, in order to
@@ -703 +704 @@
       cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \
                      $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@
 
+
+cobalt: vmlinux
+        strip vmlinux
+        bzip2 vmlinux
+
 .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE
         $(call if_changed_dep,as_o_S)
 

arch/i386/kernel/Makefile

@@ -55 +55 @@
 targets += vsyscall-note.o vsyscall.lds
 
 # The DSO images are built using a special linker script.
+obj-$(CONFIG_COBALT_RAQ)        += cobalt.o
 quiet_cmd_syscall = SYSCALL $@
       cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@F)) \
                           -Wl,-T,$(filter-out FORCE,$^) -o $@

arch/i386/kernel/cobalt.c

@@ +1 @@
+/* $Id: cobalt.c,v 1.34 2002/11/04 17:54:14 thockin Exp $ */
+#include <linux/config.h>
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/ptrace.h>
+#include <linux/reboot.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/misc.h>
+#include <cobalt/led.h>
+#include <cobalt/wdt.h>
+#include <cobalt/acpi.h>
+#include <cobalt/superio.h>
+#include <cobalt/systype.h>
+
+#define MAX_NMI_PS      10
+
+static u8 last_err;
+static u32 last_address;
+static unsigned long nmi_repeats;
+static struct timer_list nmi_timer;
+static int timer_added;
+static unsigned long nmi_count;
+static spinlock_t nmi_state_lock = SPIN_LOCK_UNLOCKED;
+
+static inline void 
+ledonoff(unsigned long on, unsigned long off)
+{
+#ifdef CONFIG_COBALT_LED
+        unsigned long start;
+        int haltok = current_cpu_data.hlt_works_ok;
+
+        if (on) {
+                start = jiffies;
+                cobalt_led_set(cobalt_led_get() | LED_SHUTDOWN);
+                while (jiffies < start + on) {
+                        if (haltok) __asm__("hlt");
+                }
+        }
+
+        if (off) {
+                start = jiffies;
+                cobalt_led_set(cobalt_led_get() & ~LED_SHUTDOWN);
+                while (jiffies < start + off) {
+                        if (haltok) __asm__("hlt");
+                }
+        }
+#endif
+}
+
+/* clla this holding nmi_state_lock */
+static inline void
+do_repeats(void)
+{
+        if (nmi_repeats) {
+                printk("NMI: last error repeated %lu times\n", nmi_repeats);
+                nmi_repeats = 0;
+        }
+}
+
+static void 
+nmi_throttle_fn(unsigned long data)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&nmi_state_lock, flags);
+
+        /* clear any repeated NMIs */
+        do_repeats();
+
+        /* have we had a lot of errors this second */
+        if (nmi_count > MAX_NMI_PS) {
+                printk("NMI: %lu messages were throttled\n", 
+                        nmi_count - MAX_NMI_PS);
+                nmi_count = 0;
+        }
+
+        /* de-activate the timer - will be reactivated by an NMI */
+        del_timer(&nmi_timer);
+        timer_added = 0;
+
+        spin_unlock_irqrestore(&nmi_state_lock, flags);
+}
+
+void 
+cobalt_nmi(unsigned char reason, struct pt_regs *regs)
+{
+        if (cobt_is_5k()) {
+                static struct pci_dev *cnb_dev;
+                u8 err;
+                u32 address = 0;
+                unsigned long flags;
+
+                /* find our memory controller */
+                if (!cnb_dev) {
+                        cnb_dev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
+                                  PCI_DEVICE_ID_SERVERWORKS_LE, NULL);
+                }
+                if (!cnb_dev) {
+                        EPRINTK("can't find north bridge for NMI status\n");
+                        return;
+                }
+
+                /* read the error number */
+                pci_read_config_byte(cnb_dev, 0x47, &err);
+
+                /* if a memory error was detected, where? */
+                if (err & 0x06) {
+                        pci_read_config_dword(cnb_dev, 0x94, &address);
+                }
+
+                spin_lock_irqsave(&nmi_state_lock, flags);
+
+                /* set up the timer, if it isn't set to go already */
+                if (!timer_added) {
+                        init_timer(&nmi_timer);
+                        nmi_timer.expires = jiffies + HZ;
+                        nmi_timer.function = nmi_throttle_fn;
+                        add_timer(&nmi_timer);
+                        timer_added = 1;
+                }
+
+                /* if we already printed this error */
+                if (last_err && err == last_err && address == last_address) {
+                        nmi_repeats++;
+                        spin_unlock_irqrestore(&nmi_state_lock, flags);
+                } else {
+                        unsigned long nmi_now;
+
+                        /* different error - show repeats */
+                        do_repeats();
+
+                        /* we only want to do a few messages per second */
+                        nmi_now = nmi_count++;
+
+                        spin_unlock_irqrestore(&nmi_state_lock, flags);
+
+                        /* generate a new message */
+                        if (nmi_now < MAX_NMI_PS) {
+                                /* only remember NMIs that we can print */
+                                last_err = err;
+                                last_address = address;
+
+                                printk("NMI:");
+                                if (err & 0x40)
+                                        printk(" (PCI tx data error)");
+                                if (err & 0x20)
+                                        printk(" (PCI rx data error)");
+                                if (err & 0x10)
+                                        printk(" (PCI address error)");
+                                if (err & 0x04)
+                                        printk(" (DRAM uncorrectable error)");
+                                if (err & 0x02)
+                                        printk(" (DRAM correctable error)");
+                                if (err & 0x01)
+                                        printk(" (Shutdown cycle detected)");
+
+                                if (err & 0x06) {
+                                        u8 row, dimm, ecc;
+
+                                        row = (address >> 29) & 0x7;
+                                        pci_read_config_byte(cnb_dev, 
+                                                0x7c + (row >> 1), &dimm);
+                                        dimm = ((row & 1) ? 
+                                                (dimm >> 4) : dimm) & 0xf;
+                                        pci_read_config_byte(cnb_dev, 0xe8, 
+                                                &ecc);
+
+                                        printk(" [memory row %d, DIMM type %d, "
+                                                "col=0x%x, row=0x%x, ECC=0x%x]",
+                                                row, dimm, 
+                                                (address >> 15) & 0x3fff, 
+                                                address & 0x7fff, ecc);
+                                } 
+                                printk("\n");
+                        }
+                }
+
+                /* clear errors */
+                pci_write_config_byte(cnb_dev, 0x47, err); 
+        } else {
+                /* TODO: make throttling generic, handle GP NMIs */
+                printk("NMI: unknown error\n");
+        }
+}
+
+void 
+cobalt_restart(void)
+{
+        if (cobt_is_3k()) {
+                /* kick watchdog */
+                cobalt_wdt_trigger_reboot();
+        } else if (cobt_is_5k()) {
+                /* set "Enable Hard Reset" bit to 1 */
+                outb(0x02, 0x0cf9);
+
+                /* 0-to-1 transition of bit 2 will cause reset of processor */
+                outb(0x06, 0x0cf9);
+        }
+        mdelay(3000);
+
+        /* we should not get here unless there is a BAD error */
+        EPRINTK("can not restart - halting\n");
+        machine_halt();
+}
+
+void
+cobalt_halt(void)
+{
+        int haltok = current_cpu_data.hlt_works_ok;
+
+        if (cobt_is_5k()) {
+                /* we have soft power-off */
+                machine_power_off();
+        }
+
+        /* 
+         * we want to do cpu_idle, but we don't actually want to 
+         * call cpu_idle. bleah. 
+         */
+        while (1) {
+                ledonoff(HZ >> 1, HZ >> 1);
+                if (haltok) {
+                        __asm__("hlt");
+                }
+        }
+}
+
+void
+cobalt_power_off(void)
+{
+        u16 addr;
+
+        if (cobt_is_monterey()) {
+                u8 val;
+                /* use card control reg. 7 to select logical device 2 (APC) */
+                addr = superio_ldev_base(PC87317_DEV_RTC);
+
+                /* set up bank 2 */
+                outb(PC87317_RTC_CRA, addr);
+                val = inb(addr + 1) & 0x8f;
+                outb(val | PC87317_RTC_BANK_2, addr + 1);
+
+                /* power off the machine with APCR1 */
+                outb(PC87317_APCR1, addr);
+                val = inb(addr + 1);
+                outb(0x20 | val, addr + 1);
+        } else if (cobt_is_alpine()) {
+                int i;
+                /* clear status bits, base addr 3 */
+                addr = superio_ldev_base_n(PC87417_DEV_SWC, 3);
+                for (i = 0; i < 4; i++) {
+                        /* 
+                         * if we have an event while running, 
+                         * we can't halt unless we clear these
+                         * */
+                        outb(0xff, addr+i);
+                }
+
+                /* set sleep state, base addr 2 */
+                addr = superio_ldev_base_n(PC87417_DEV_SWC, 2);
+                /* PM1b_CNT_HIGH @offset 1 - set state to S5 */
+                outb(0x34, addr+1);
+        }
+        mdelay(3000);
+        EPRINTK("can not power off\n");
+}
+
+/* put arch specific stuff to run at init time here */
+static int __init
+cobalt_arch_init(void)
+{
+        return 0;
+}
+module_init(cobalt_arch_init);

arch/i386/kernel/process.c

@@ -52 +52 @@
 #include <asm/math_emu.h>
 #endif
 
+#ifdef CONFIG_COBALT_RAQ
+#include <cobalt/misc.h>
+#include <cobalt/lcd.h>
+#endif
+
 #include <linux/err.h>
 
 #include <asm/tlbflush.h>
@@ -477 +482 @@
 void dump_thread(struct pt_regs * regs, struct user * dump)
 {
         int i;
+        
+#ifdef CONFIG_COBALT_RAQ
+        cobalt_flush();
+        cobalt_restart();
+#endif
+
 
 /* changed the size calculations - should hopefully work better. lbt */
         dump->magic = CMAGIC;

arch/i386/kernel/reboot.c

@@ -19 +19 @@
 #include "mach_reboot.h"
 #include <linux/reboot_fixups.h>
 
+#ifdef CONFIG_COBALT_RAQ
+#include <cobalt/misc.h>
+#include <cobalt/lcd.h>
+#endif
+
 /*
  * Power off function, if any
  */
@@ -280 +285 @@
 EXPORT_SYMBOL(machine_real_restart);
 #endif
 
+/* kill some time at halt/reboot to allow drives with large cache to sync */
+
+#ifdef CONFIG_COBALT_RAQ
+void cobalt_flush(void)
+{
+        int i;
+        static int flushed;
+
+        if (flushed)
+                return;
+        flushed = 1;
+
+        printk("waiting for devices to flush");
+        for (i = 0 ; i < 10; i++) {
+                printk(".");
+                mdelay(500);
+#ifdef CONFIG_COBALT_LCD
+                if (i == 8)
+                        cobalt_lcd_off();
+#endif
+        }
+        printk("done\n");
+}
+#endif
+
 void machine_shutdown(void)
 {
+#ifdef CONFIG_COBALT_RAQ
+        cobalt_flush();
+        cobalt_halt();
+#endif
+
 #ifdef CONFIG_SMP
         int reboot_cpu_id;
 
@@ -318 +353 @@
 
 void machine_emergency_restart(void)
 {
+#ifdef CONFIG_COBALT_RAQ
+        cobalt_restart();
+#endif
         if (!reboot_thru_bios) {
                 if (efi_enabled) {
                         efi.reset_system(EFI_RESET_COLD, EFI_SUCCESS, 0, NULL);
@@ -342 +380 @@
 
 void machine_restart(char * __unused)
 {
+#ifdef CONFIG_COBALT_RAQ
+        cobalt_flush();
+        cobalt_restart();
+#endif
         machine_shutdown();
         machine_emergency_restart();
 }

arch/i386/kernel/traps.c

@@ -61 +61 @@
 
 int panic_on_unrecovered_nmi;
 
+#ifdef CONFIG_COBALT_RAQ
+#include <cobalt/misc.h>
+#endif
+
 asmlinkage int system_call(void);
 
 /* Do we ignore FPU interrupts ? */
@@ -631 +635 @@
 static __kprobes void
 mem_parity_error(unsigned char reason, struct pt_regs * regs)
 {
+#ifdef CONFIG_COBALT_RAQ
+        cobalt_nmi(reason, regs);
+#else
         printk(KERN_EMERG "Uhhuh. NMI received for unknown reason %02x on "
                 "CPU %d.\n", reason, smp_processor_id());
         printk(KERN_EMERG "You have some hardware problem, likely on the PCI bus.\n");
@@ -638 +645 @@
                 panic("NMI: Not continuing");
 
         printk(KERN_EMERG "Dazed and confused, but trying to continue\n");
-
+#endif
         /* Clear and disable the memory parity error line. */
         clear_mem_error(reason);
 }

drivers/Kconfig

@@ -82 +82 @@
 
 source "drivers/kvm/Kconfig"
 
+source "drivers/cobalt/Kconfig"
+
 endmenu

drivers/Makefile

@@ -67 +67 @@
 obj-$(CONFIG_EDAC)              += edac/
 obj-$(CONFIG_MCA)               += mca/
 obj-$(CONFIG_EISA)              += eisa/
+obj-$(CONFIG_COBALT_RAQ)        += cobalt/
+
 obj-$(CONFIG_CPU_FREQ)          += cpufreq/
 obj-$(CONFIG_MMC)               += mmc/
 obj-$(CONFIG_NEW_LEDS)          += leds/

drivers/char/Kconfig

@@ -808 +808 @@
           will get access to the real time clock (or hardware clock) built
           into your computer.
 
-config COBALT_LCD
+config COBALT_MIPS_LCD
         bool "Support for Cobalt LCD"
         depends on MIPS_COBALT
         help

drivers/char/Makefile

@@ -79 +79 @@
 obj-$(CONFIG_I8K)               += i8k.o
 obj-$(CONFIG_DS1620)            += ds1620.o
 obj-$(CONFIG_HW_RANDOM)         += hw_random/
-obj-$(CONFIG_COBALT_LCD)        += lcd.o
+obj-$(CONFIG_COBALT_MIPS_LCD)   += lcd.o
 obj-$(CONFIG_PPDEV)             += ppdev.o
 obj-$(CONFIG_NWBUTTON)          += nwbutton.o
 obj-$(CONFIG_NWFLASH)           += nwflash.o

drivers/char/misc.c

@@ -49 +49 @@
 #include <linux/tty.h>
 #include <linux/kmod.h>
 
+#ifdef CONFIG_COBALT_RAQ
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+#include <cobalt/superio.h>
+#include <cobalt/serialnum.h>
+#include <cobalt/i2c.h>
+#include <cobalt/misc.h>
+#include <cobalt/lcd.h>
+#endif
+
+
 /*
  * Head entry for the doubly linked miscdevice list
  */
@@ -63 +74 @@
 
 extern int pmu_device_init(void);
 
+#ifdef CONFIG_COBALT_RAQ
+extern int cobalt_init(void);
+#endif
+#ifdef CONFIG_COBALT_MIPS_LCD
+module_init(lcd_init);
+#endif
+
 #ifdef CONFIG_PROC_FS
 static void *misc_seq_start(struct seq_file *seq, loff_t *pos)
 {

drivers/char/nvram.c

@@ -49 +49 @@
 #if defined(CONFIG_ATARI)
 #  define MACH ATARI
 #elif defined(__i386__) || defined(__x86_64__) || defined(__arm__)  /* and others?? */
-#define MACH PC
-#  if defined(CONFIG_COBALT)
+#  if defined(CONFIG_COBALT_RAQ)
 #    include <linux/cobalt-nvram.h>
 #    define MACH COBALT
 #  else

drivers/cobalt/Kconfig

@@ +1 @@
+#
+# Cobalt Drivers
+#
+
+menu "Cobalt RaQ/Qube Hardware"
+
+config COBALT_RAQ
+        bool "Cobalt RaQ/Qube Hardware Support"
+        select INPUT
+        default n
+        ---help---
+          NOTE: This support is for x86 Cobalts, not MIPS versions
+          
+          If you have a Gen III or Gen V Cobalt RaQ/Qube machine, it's probably
+          a good idea to say Y here and choose from the options below.
+
+config COBALT_GEN_III
+        bool "Gen III (3000 series) system support"
+        depends on COBALT_RAQ
+        default y
+        ---help---
+          If you have one of the following Gen III Cobalt systems, say Y here.
+          Otherwise, it's best to say N.
+          
+           - RaQ 3
+           - RaQ 4
+           - Qube3
+
+config COBALT_GEN_V
+        bool "Gen V (5000 series) system support"
+        depends on COBALT_RAQ
+        default n
+        ---help---
+          If you have one of the following Gen V Cobalt systems, say Y here.
+          Otherwise, it's best to say N.
+          
+           - RaQ XTR
+           - RaQ550
+
+config COBALT_OLDPROC
+        bool "Create legacy /proc files"
+        depends on COBALT_RAQ
+        default y
+        ---help---
+          Creates entries in /proc/cobalt which provide useful information about
+          your RaQ/Qube.  Best to say Y here.
+
+menu "Cobalt Hardware Options"
+        depends on COBALT_RAQ
+        
+        config COBALT_LCD
+                        bool "Front panel LCD support"
+                        default y
+                        ---help---
+                          Handles support for the front panel LCD screen and buttons.
+        
+        config COBALT_LCD_TWIDDLE
+                        bool "Twiddle LCD on boot"
+                        depends on COBALT_LCD
+                        default y
+                        ---help---
+                          Gives you a nice little twiddle on the LCD while booting.
+        
+        config COBALT_LED
+                        bool "Software controlled LED support"
+                        default y
+                        ---help---
+                          Allows software to play with the LEDs on the front of the
+                          system.
+        
+        config COBALT_SERNUM
+                        tristate "Serial number support"
+                        depends on COBALT_OLDPROC
+                        default y
+                        ---help---
+                          Allows you to retrieve the system's serial number via a /proc
+                          entry.
+        
+        config COBALT_WDT
+                        bool "Watchdog timer support"
+                        depends on WATCHDOG
+                        default y
+                        ---help---
+                          w00f?
+        
+        config COBALT_SENSORS
+                        bool "System sensors support"
+                        depends on COBALT_OLDPROC
+                        default y
+                        ---help---
+                          Allows you to retrieve system temperatures via /proc entries.
+        
+        config COBALT_FANS
+                        tristate "Fan tachometer support"
+                        depends on COBALT_OLDPROC
+                        depends on COBALT_GEN_V
+                        default y
+                        ---help---
+                          Allows you to retrieve fan speeds via /proc entries.
+        
+        config COBALT_RAMINFO
+                        tristate "Memory information support"
+                        depends on COBALT_OLDPROC
+                        default y
+                        ---help---
+                          Got DIMMs?  This will tell you how much and in which slot via a
+                          /proc entry.
+        
+        config COBALT_RULER
+                        bool "Disk drive ruler support"
+                        depends on COBALT_OLDPROC
+                        depends on COBALT_GEN_V
+                        default y
+                        ---help---
+                          Not sure what this does... A purple tape measure maybe?
+        
+        config COBALT_ACPI
+                        bool "Cobalt ACPI support"
+                        depends on COBALT_GEN_V
+                        default y
+                        ---help---
+                          ACPI support for the Generation V Cobalts.
+        
+        config COBALT_EMU_ACPI
+                        bool "/proc/acpi emulation"
+                        depends on COBALT_ACPI
+                        default y
+                        ---help---
+                          Emulates the /proc/acpi interface.
+
+endmenu
+
+endmenu

drivers/cobalt/Makefile

@@ +1 @@
+#
+# Makefile for the Sun/Cobalt device drivers
+#
+
+#O_TARGET := cobalt.o
+
+#export-objs := init.o systype.o wdt.o i2c.o
+
+obj-$(CONFIG_COBALT_RAQ)        += init.o systype.o i2c.o wdt.o 
+obj-$(CONFIG_COBALT_ACPI)       += acpi.o
+obj-$(CONFIG_COBALT_SERNUM)     += serialnum.o
+obj-$(CONFIG_COBALT_LCD)        += lcd.o
+obj-$(CONFIG_COBALT_LED)        += net.o led.o
+obj-$(CONFIG_COBALT_SENSORS)    += sensors.o
+obj-$(CONFIG_COBALT_FANS)       += fans.o
+obj-$(CONFIG_COBALT_RAMINFO)    += raminfo.o
+obj-$(CONFIG_COBALT_RULER)      += ruler.o
+

drivers/cobalt/README

@@ +1 @@
+Notes on Cobalt's drivers:
+
+You will notice in several places constructs such as this:
+
+        if (cobt_is_3k()) {
+                foo();
+        } else if (cobt_is_5k()) {
+                bar();
+        }
+
+The goal here is to only compile in code that is needed, but to allow one to
+define support for both 3k and 5k (and more?) style systems.  The systype
+check macros are very simple and clean.  They check whether config-time
+support for the generation has been enabled, and (if so) whether the current
+systype matches the spcified generation.  This leaves the code free from 
+#ifdef cruft, but lets the compiler throw out unsupported generation-specific 
+code with if (0) detection.
+
+--

drivers/cobalt/acpi.c

@@ +1 @@
+ /* 
+ * cobalt acpi driver 
+ * Copyright (c) 2000, Cobalt Networks, Inc.
+ * Copyright (c) 2001, Sun Microsystems, Inc.
+ * $Id: acpi.c,v 1.32 2002/06/26 19:08:54 duncan Exp $
+ *
+ * author: asun@cobalt.com, thockin@sun.com
+ * modified by: jeff@404ster.com
+ *
+ * this driver just sets stuff up for ACPI interrupts
+ *
+ * if acpi support really existed in the kernel, we would read
+ * data from the ACPI tables. however, it doesn't. as a result,
+ * we use some hardcoded values. 
+ *
+ * This should be SMP safe.  The only data that needs protection is the acpi
+ * handler list.  It gets scanned at timer-interrupts, must use
+ * irqsave/restore locks. Read/write locks would be useful if there were any
+ * other times that the list was read but never written. --TPH
+ *
+ * /proc/acpi emulation emulates the /proc/acpi/events interface supplied by 
+ * the INTEL acpi drivers.  A lot of the code to handle it has been adapted
+ * from there.
+ */
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/config.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/proc_fs.h>
+#include <linux/poll.h>
+#include <linux/interrupt.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+#include <cobalt/acpi.h>
+#include <cobalt/superio.h>
+
+#define ACPI_DRIVER                     "Cobalt Networks ACPI driver"
+#define ACPI_DRIVER_VMAJ                1
+#define ACPI_DRIVER_VMIN                0
+
+#define POWER_BUTTON_SHUTDOWN   0
+
+#define ACPI_IRQ        10      /* XXX: hardcoded interrupt */
+#define ACPI_NAME       "sci"
+#define ACPI_MAGIC      0xc0b7ac21
+
+#define SUPERIO_EVENT   0xff
+#define OSB4_EVENT      0x40
+#define OSB4_INDEX_PORT SERVERWORKS_ACPI_INDEX_PORT
+#define OSB4_DATA_PORT  SERVERWORKS_ACPI_DATA_PORT
+
+#define GEN_ACPI_TMR_STS      (0x1 <<  0)
+#define GEN_ACPI_BM_STS       (0x1 <<  4)
+#define GEN_ACPI_GBL_STS      (0x1 <<  5)
+#define GEN_ACPI_PWRBTN_STS   (0x1 <<  8)
+#define GEN_ACPI_SLPBTN_STS   (0x1 <<  9)
+#define GEN_ACPI_RTC_STS      (0x1 << 10)
+#define GEN_ACPI_WAK_STS      (0x1 << 15)
+
+#ifdef CONFIG_COBALT_EMU_ACPI
+static int cobalt_acpi_setup_proc(void);
+static int cobalt_acpi_open_event(struct inode *inode, struct file *file);
+static int cobalt_acpi_close_event(struct inode *inode, struct file *file);
+static ssize_t cobalt_acpi_read_event(struct file *file, char *buf, 
+        size_t count, loff_t *ppos);
+static unsigned int cobalt_acpi_poll_event(struct file *file, poll_table *wait);
+#endif
+
+
+
+typedef struct 
+{
+    u16 hw_type;
+    cobalt_acpi_hw_handler hw_handler;
+    cobalt_acpi_enable_handler en_handler;
+    void *data;
+    struct list_head link;
+} hw_handler_datum;
+
+typedef struct 
+{
+    u16 hw_type;
+    u16 table_len;
+    u16 *table;
+    struct list_head link;
+} trans_table_datum;
+
+typedef struct 
+{
+    cobalt_acpi_evt_handler handler;
+    u16 ev_type;
+    void *data;
+    struct list_head link;
+} evt_handler_datum;
+
+typedef struct 
+{
+    cobalt_acpi_evt evt;
+    struct list_head link;
+} evt_list_datum;
+
+static LIST_HEAD( hw_handler_list );
+static spinlock_t hw_handler_list_lock = SPIN_LOCK_UNLOCKED;
+static LIST_HEAD( trans_table_list );
+static spinlock_t trans_table_list_lock = SPIN_LOCK_UNLOCKED;
+static LIST_HEAD( evt_handler_list );
+static spinlock_t evt_handler_list_lock = SPIN_LOCK_UNLOCKED;
+static LIST_HEAD( dispatch_queue );
+static spinlock_t dispatch_queue_lock = SPIN_LOCK_UNLOCKED;
+ 
+typedef struct
+{
+    u16 hw_type;
+
+        /* block lengths */
+    u16 pm1_evt_len;
+    u16 pm1_cnt_len;
+    u16 pm2_cnt_len;
+    u16 pm_tmr_len;
+    u16 gpe0_len;
+    u16 gpe1_len;
+    
+        /* block I/O locations */
+    u16 pm1a_evt_blk;
+    u16 pm1b_evt_blk;
+    u16 pm1a_cnt_blk;
+    u16 pm1b_cnt_blk;
+    u16 pm2_cnt_blk;
+    u16 pm_tmr_blk;
+    u16 p_blk;
+    u16 gpe0_blk;
+    u16 gpe1_blk;
+
+        /* ponters to strings for the io names */
+    char *pm1a_evt_nam;
+    char *pm1b_evt_nam;
+    char *pm1a_cnt_nam;
+    char *pm1b_cnt_nam;
+    char *pm2_cnt_nam;
+    char *pm_tmr_nam;
+    char *p_nam;
+    char *gpe0_nam;
+    char *gpe1_nam;
+
+        /* reference counts for events */
+    atomic_t tmr_ref_cnt;
+    atomic_t bm_ref_cnt;
+    atomic_t gbl_ref_cnt;
+    atomic_t pwrbtn_ref_cnt;
+    atomic_t slpbtn_ref_cnt;
+    atomic_t rtc_ref_cnt;
+    atomic_t wak_ref_cnt;
+    atomic_t *gpe_ref_cnt;
+
+
+} generic_acpi_regions;
+
+
+static void cobalt_acpi_enable_event( u16 ev_type, int en );
+static void cobalt_acpi_run_enable_handler( u16 hw_type, u16 ev_type, 
+                                            u16 ev_data, int en);
+static int cobalt_acpi_apply_evt_handlers( evt_list_datum *d );
+static int cobalt_acpi_run_dispatch_queue( void );
+static irqreturn_t acpi_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static void cobalt_acpi_cleanup( void );
+
+static int register_acpi_regions( generic_acpi_regions *regions, char * subsys_name );
+static int unregister_acpi_regions( generic_acpi_regions *regions );
+static void cobalt_acpi_handle_pm1_blk( u16 io_addr, u16 len, 
+                                        generic_acpi_regions * regions );
+static void cobalt_acpi_handle_gpe_blk( u16 io_addr, u16 len, 
+                                        generic_acpi_regions * regions );
+static int cobalt_acpi_generic_hw_handler( int irq, void *dev_id, 
+                                           struct pt_regs *regs, void * data );
+
+static int cobalt_acpi_osb4_init( void );
+static int cobalt_acpi_osb4_cleanup( void );
+static int get_osb4_regions( generic_acpi_regions *regions);
+
+static int cobalt_acpi_csb5_init( void );
+static int cobalt_acpi_csb5_cleanup( void );
+static int get_csb5_regions( generic_acpi_regions *regions);
+
+static int cobalt_acpi_pc8731x_init( void );
+static int cobalt_acpi_pc8731x_cleanup( void );
+static int get_pc8731x_regions( generic_acpi_regions *regions );
+
+static int cobalt_acpi_pc8741x_init( void );
+static int cobalt_acpi_pc8741x_cleanup( void );
+static int get_pc8741x_regions( generic_acpi_regions *regions );
+
+static int cobalt_acpi_monterey_init( void );
+static int cobalt_acpi_monterey_cleanup( void );
+
+static int cobalt_acpi_alpine_init( void );
+static int cobalt_acpi_alpine_cleanup( void );
+
+static __inline__ struct list_head *list_pop( struct list_head *head )
+{
+    struct list_head *e;
+    
+    if( list_empty( head ) )
+        return NULL;
+    
+    e = head->next;
+    list_del( e );
+    return e;
+}
+
+static __inline__ u16 get_reg(u16 index, u16 data, u8 port)
+{
+    u16 reg;
+
+    outb(port, index);
+    reg = inb(data);
+    outb(port + 1, index);
+    reg |= inb(data) << 8;
+    return reg;
+}
+
+/*
+ *
+ * Main ACPI Subsystem Code
+ *
+ */
+
+extern int cobalt_acpi_register_hw_handler( u16 hw_type,
+                                            cobalt_acpi_hw_handler hw_handler, 
+                                            cobalt_acpi_enable_handler en_handler,
+                                            void *data )
+{
+    hw_handler_datum *d;
+    unsigned long flags;
+
+    if( ! (d = (hw_handler_datum *) kmalloc( sizeof( hw_handler_datum ), GFP_ATOMIC )) )
+        return -ENOMEM;
+
+    d->hw_type = hw_type;
+    d->hw_handler = hw_handler;
+    d->en_handler = en_handler;
+    d->data = data;
+
+    spin_lock_irqsave( &hw_handler_list_lock, flags );
+    list_add( &(d->link), &hw_handler_list );
+    spin_unlock_irqrestore( &hw_handler_list_lock, flags );
+
+    return 0;
+}
+
+extern int cobalt_acpi_unregister_hw_handler( cobalt_acpi_hw_handler handler )
+{
+    struct list_head *pos;
+    unsigned long flags;
+    
+    spin_lock_irqsave( &hw_handler_list_lock, flags );
+    list_for_each( pos, &hw_handler_list )
+        {
+            if( list_entry( pos, hw_handler_datum, link )->hw_handler == handler )
+            {
+                list_del( pos );
+                spin_unlock_irqrestore( &hw_handler_list_lock, flags );
+
+                kfree( list_entry( pos, hw_handler_datum, link ) );
+                return 0;
+            }
+                
+        };
+    
+    spin_unlock_irqrestore( &hw_handler_list_lock, flags );
+    return -1;
+}
+
+extern int cobalt_acpi_register_trans_table( u16 hw_type, u16 table_len, u16 *table )
+{
+    trans_table_datum *d;
+    unsigned long flags;
+    
+    if( ! (d = (trans_table_datum *) kmalloc( sizeof( trans_table_datum ), GFP_ATOMIC )) )
+        return -ENOMEM;
+
+    d->hw_type = hw_type;
+    d->table_len = table_len;
+    d->table = table;
+
+    spin_lock_irqsave( &trans_table_list_lock, flags );
+    list_add( &(d->link), &trans_table_list );
+    spin_unlock_irqrestore( &trans_table_list_lock, flags );
+
+    return 0;
+}
+
+extern int cobalt_acpi_unregister_trans_table( u16 hw_type )
+{
+    struct list_head *pos;
+    unsigned long flags;
+    
+    spin_lock_irqsave( &trans_table_list_lock, flags );
+    list_for_each( pos, &trans_table_list )
+        {
+            if( list_entry( pos, trans_table_datum, link )->hw_type == hw_type )
+            {
+                list_del( pos );
+                spin_unlock_irqrestore( &trans_table_list_lock, flags );
+                
+                kfree( list_entry( pos, trans_table_datum, link ) );
+                return 0;
+            }
+                
+        };
+    
+    spin_unlock_irqrestore( &trans_table_list_lock, flags );
+    return -1;
+}
+
+extern int cobalt_acpi_register_evt_handler( cobalt_acpi_evt_handler handler, 
+                                             u16 ev_type,
+                                             void *data )
+{
+    evt_handler_datum *d;
+    unsigned long flags;
+    
+    if( ! (d = (evt_handler_datum *) kmalloc( sizeof( evt_handler_datum ), GFP_ATOMIC )) )
+        return -ENOMEM;
+
+    d->handler = handler;
+    d->data = data;
+    d->ev_type = ev_type;
+
+    spin_lock_irqsave( &evt_handler_list_lock, flags );
+    list_add( &(d->link), &evt_handler_list );
+    spin_unlock_irqrestore( &evt_handler_list_lock, flags );
+
+    cobalt_acpi_enable_event( ev_type, 1 );
+
+    return 0;
+}
+
+extern int cobalt_acpi_unregister_evt_handler( cobalt_acpi_evt_handler handler )
+{
+    struct list_head *pos;
+    unsigned long flags;
+    
+
+    spin_lock_irqsave( &evt_handler_list_lock, flags );
+    list_for_each( pos, &evt_handler_list )
+        {
+            if( list_entry( pos, evt_handler_datum, link )->handler == handler )
+            {
+                list_del( pos );
+                spin_unlock_irqrestore( &evt_handler_list_lock, flags );
+                
+                cobalt_acpi_enable_event( list_entry( pos, 
+                                                      evt_handler_datum, 
+                                                      link )->ev_type, 0 );
+
+                kfree( list_entry( pos, evt_handler_datum, link ) );
+                return 0;
+            }
+                
+        };
+    
+    spin_unlock_irqrestore( &evt_handler_list_lock, flags );
+    return -EINVAL;
+}
+
+static void cobalt_acpi_enable_event( u16 ev_type, int en )
+{
+    if( ev_type >= 0x8000 )
+    {
+        struct list_head *pos;
+        trans_table_datum *d;
+        int i;
+        unsigned long flags;
+
+        spin_lock_irqsave( &trans_table_list_lock, flags );
+        list_for_each( pos, &trans_table_list )
+            {
+                d = list_entry( pos, trans_table_datum, link );
+                for( i=0 ; i<d->table_len ; i++ )
+                {
+                    if( d->table[i] == ev_type )
+                    {
+                        cobalt_acpi_run_enable_handler( d->hw_type, 
+                                                        COBALT_ACPI_EVT_GPE, 
+                                                        i, en );
+                    }
+                }
+            }
+        spin_unlock_irqrestore( &trans_table_list_lock, flags );
+    }
+    else
+        cobalt_acpi_run_enable_handler( COBALT_ACPI_HW_ANY, ev_type, 0, en);
+}
+
+static void cobalt_acpi_run_enable_handler( u16 hw_type, u16 ev_type, 
+                                            u16 ev_data, int en)
+{   
+    struct list_head *pos;
+    unsigned long flags;
+    hw_handler_datum *d;
+
+    spin_lock_irqsave(&hw_handler_list_lock, flags);
+    list_for_each( pos, &hw_handler_list )
+        {
+            d = list_entry( pos, hw_handler_datum, link );
+            if( (!hw_type) || (d->hw_type == hw_type) )
+                d->en_handler( ev_type, ev_data, en, d->data );
+        }
+    spin_unlock_irqrestore(&hw_handler_list_lock, flags);
+    
+}
+
+static int cobalt_acpi_translate_event( cobalt_acpi_evt *evt )
+{
+    struct list_head *pos;
+    unsigned long flags;
+    trans_table_datum *d;
+
+    if( evt->ev_type != COBALT_ACPI_EVT_GPE )
+        return 0;
+
+    spin_lock_irqsave( &trans_table_list_lock, flags );
+    list_for_each( pos, &trans_table_list )
+        {
+            d = list_entry( pos, trans_table_datum, link );
+            if( d->hw_type == evt->hw_type )
+            {
+                if( evt->ev_data >= d->table_len )
+                    goto err_out;
+
+                if( d->table[ evt->ev_data ] != COBALT_ACPI_EVT_NONE )
+                {
+                    evt->ev_type = d->table[ evt->ev_data ];
+                    evt->ev_data = 0;
+                }
+                
+                spin_unlock_irqrestore( &trans_table_list_lock, flags );
+                return 0;
+            }
+        }
+
+  err_out:
+    spin_unlock_irqrestore( &trans_table_list_lock, flags );
+    return -1;
+}
+
+extern int cobalt_acpi_post_event( cobalt_acpi_evt evt )
+{
+    evt_list_datum *d;
+    unsigned long flags;
+    
+    if( ! (d = (evt_list_datum *) kmalloc( sizeof( evt_handler_datum ), GFP_ATOMIC )) )
+        return -ENOMEM;
+    
+
+    cobalt_acpi_translate_event( &evt );
+
+    memcpy( &(d->evt), &evt, sizeof(evt) );
+
+    spin_lock_irqsave( &dispatch_queue_lock, flags );
+    list_add_tail( &(d->link), &dispatch_queue );
+    spin_unlock_irqrestore( &dispatch_queue_lock, flags );
+
+    return 0;
+}
+
+static int cobalt_acpi_apply_evt_handlers( evt_list_datum *d )
+{
+    struct list_head *pos;
+    evt_handler_datum *evt_h;
+    int ret,err = 0;
+    unsigned long flags;
+    
+    spin_lock_irqsave( &evt_handler_list_lock, flags );
+    list_for_each( pos, &evt_handler_list )
+        {
+            evt_h = list_entry( pos, evt_handler_datum, link );
+            if( (! evt_h->ev_type) || (evt_h->ev_type == d->evt.ev_type) )
+            {
+                if( (ret = evt_h->handler( &d->evt, evt_h->data )) < 0 )
+                    err = ret;
+            }
+        }
+    spin_unlock_irqrestore( &evt_handler_list_lock, flags );
+
+    return err;
+}
+
+static int cobalt_acpi_run_dispatch_queue( void )
+{
+    struct list_head *pos;
+    int ret;
+    int err=0;
+    evt_list_datum *d;
+    unsigned long flags;
+
+    spin_lock_irqsave( &dispatch_queue_lock, flags );
+    while( (pos = list_pop( &dispatch_queue )) )
+    {
+        d = list_entry( pos, evt_list_datum, link );
+        if( (ret = cobalt_acpi_apply_evt_handlers( d )) < 0 )
+            err = ret;
+#ifdef CONFIG_COBALT_EMU_ACPI
+        cobalt_acpi_generate_proc_evt( &d->evt );
+#endif
+        kfree( d );
+    }
+    spin_unlock_irqrestore( &dispatch_queue_lock, flags );
+
+    return err;
+}
+
+static irqreturn_t acpi_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+    struct list_head *pos;
+    hw_handler_datum *d;
+    int ret=0, err=0;
+    unsigned long flags;
+
+    spin_lock_irqsave(&hw_handler_list_lock, flags);
+    list_for_each( pos, &hw_handler_list )
+        {
+            d = list_entry( pos, hw_handler_datum, link );
+            if( (ret = d->hw_handler( irq, dev_id, regs, d->data )) < 0 )
+                err = ret;
+            
+        }
+    spin_unlock_irqrestore(&hw_handler_list_lock, flags);
+
+    if( (err = cobalt_acpi_run_dispatch_queue()) < 0 )
+        err = ret;
+
+    if( err )
+        EPRINTK( "error at interrupt time of type %d.\n", err );
+
+    return IRQ_HANDLED;
+}
+
+
+
+
+int __init cobalt_acpi_init(void)
+{
+    int err;
+
+    printk(KERN_INFO "%s %d.%d (modified by jeff@404ster.com)\n", ACPI_DRIVER,ACPI_DRIVER_VMAJ,ACPI_DRIVER_VMIN);
+    
+    if( cobt_is_monterey() )
+        cobalt_acpi_monterey_init();
+    else if( cobt_is_alpine() )
+        cobalt_acpi_alpine_init();
+
+    if( cobt_is_5k() )
+    {
+        if( pci_find_device(PCI_VENDOR_ID_SERVERWORKS, 
+                            PCI_DEVICE_ID_SERVERWORKS_OSB4, NULL ) )
+        {
+            if( (err = cobalt_acpi_osb4_init()) < 0 )
+            {
+                goto cleanup;
+            }
+        }
+        
+        if( pci_find_device(PCI_VENDOR_ID_SERVERWORKS, 
+                            PCI_DEVICE_ID_SERVERWORKS_CSB5, NULL ) )
+        {
+            if( (err = cobalt_acpi_csb5_init()) < 0 )
+            {
+                goto cleanup;
+            }
+        }
+
+        switch( superio_type() )
+        {
+            case SIO_TYPE_PC8731X:
+                if( (err = cobalt_acpi_pc8731x_init()) )
+                {
+                    goto cleanup;
+                }
+                break;
+
+            case SIO_TYPE_PC8741X:
+                if( (err = cobalt_acpi_pc8741x_init()) )
+                {
+                    goto cleanup;
+                }
+                break;
+
+            case SIO_TYPE_UNKNOWN:
+                EPRINTK("unknown superio type\n");
+                break;
+        }
+        
+            /* setup an interrupt handler for an ACPI SCI */
+        err = request_irq(ACPI_IRQ, acpi_interrupt, 
+                          SA_SHIRQ, ACPI_NAME, (void *)ACPI_MAGIC);
+        if (err) {
+            EPRINTK("can't assign ACPI IRQ (%d)\n", ACPI_IRQ);
+            return err;
+        }
+
+#ifdef CONFIG_COBALT_EMU_ACPI
+        cobalt_acpi_setup_proc();
+#endif
+    }
+
+        /* enable some events we may want */
+    cobalt_acpi_enable_event( COBALT_ACPI_EVT_PWRBTN, 1 );
+
+    return 0;
+    
+  cleanup:
+    cobalt_acpi_cleanup();
+    return err;
+}
+
+static void cobalt_acpi_cleanup( void )
+{
+    cobalt_acpi_osb4_cleanup();
+    cobalt_acpi_csb5_cleanup();
+    cobalt_acpi_pc8731x_cleanup();
+    cobalt_acpi_pc8741x_cleanup();
+
+    if( cobt_is_monterey() )
+        cobalt_acpi_monterey_cleanup();
+    if( cobt_is_alpine() )
+        cobalt_acpi_alpine_cleanup();
+}
+
+/*
+ *
+ * Generic ACPI HW Support
+ *
+ */
+
+static __inline__ char *region_name( char * subsys_name, char * blk_name )
+{
+    char * new_name;
+    
+    if( !( new_name = (char *) kmalloc( strlen(subsys_name) + strlen(blk_name) + 14,
+                                        GFP_ATOMIC)) )
+        return NULL;
+
+    sprintf( new_name, "%s (%s)", subsys_name, blk_name );
+    return new_name;
+}
+
+static void free_region_names( generic_acpi_regions *regions )
+{
+    if( regions->pm1a_evt_nam )
+        kfree( regions->pm1a_evt_nam );
+
+    if( regions->pm1b_evt_nam )
+        kfree( regions->pm1b_evt_nam );
+
+    if( regions->pm1a_cnt_nam )
+        kfree( regions->pm1a_cnt_nam );
+
+    if( regions->pm1b_cnt_nam )
+        kfree( regions->pm1b_cnt_nam );
+
+    if( regions->pm2_cnt_nam )
+        kfree( regions->pm2_cnt_nam );
+
+    if( regions->pm_tmr_nam )
+        kfree( regions->pm_tmr_nam );
+
+    if( regions->p_nam )
+        kfree( regions->p_nam );
+
+    if( regions->gpe0_nam )
+        kfree( regions->gpe0_nam );
+
+    if( regions->gpe1_nam )
+        kfree( regions->gpe1_nam );
+}
+
+static int register_acpi_regions( generic_acpi_regions *regions,  char * subsys_name )
+{
+    int i;
+    
+    if( regions->pm1a_evt_blk && regions->pm1_evt_len )
+    {
+        if( !(regions->pm1a_evt_nam = region_name( subsys_name, "pm1a_evt_blk" )) )
+            goto cleanup0;
+
+        if( !request_region( regions->pm1a_evt_blk, regions->pm1_evt_len, 
+                             regions->pm1a_evt_nam ) )
+            goto cleanup0;
+    }
+
+    if( regions->pm1b_evt_blk && regions->pm1_evt_len )
+    {
+        if( !(regions->pm1b_evt_nam = region_name( subsys_name, "pm1b_evt_blk" )) )
+            goto cleanup0;
+
+        if( !request_region( regions->pm1b_evt_blk, regions->pm1_evt_len,
+                             regions->pm1b_evt_nam) )
+            goto cleanup1;
+    }
+
+    if( regions->pm1a_cnt_blk && regions->pm1_cnt_len )
+    {
+        if( !(regions->pm1a_cnt_nam = region_name( subsys_name, "pm1a_cnt_blk" )) )
+            goto cleanup1;
+
+        if( !request_region( regions->pm1a_cnt_blk, regions->pm1_cnt_len,
+                             regions->pm1a_cnt_nam ) )
+            goto cleanup2;
+    }
+
+    if( regions->pm1b_cnt_blk && regions->pm1_cnt_len )
+    {
+        if( !(regions->pm1b_cnt_nam = region_name( subsys_name, "pm1b_cnt_blk" )) )
+            goto cleanup2;
+
+        if( !request_region( regions->pm1b_cnt_blk, regions->pm1_cnt_len,
+                             regions->pm1b_cnt_nam ) )
+            goto cleanup3;
+    }
+
+    if( regions->pm2_cnt_blk && regions->pm2_cnt_len )
+    {
+        if( !(regions->pm2_cnt_nam = region_name( subsys_name, "pm2_cnt_blk" )) )
+            goto cleanup3;
+
+        if( !request_region( regions->pm2_cnt_blk, regions->pm2_cnt_len,
+                             regions->pm2_cnt_nam ) )
+            goto cleanup4;
+    }
+
+    if( regions->pm_tmr_blk && regions->pm_tmr_len )
+    {
+        if( !(regions->pm_tmr_nam = region_name( subsys_name, "pm_tmp_blk" )) )
+            goto cleanup4;
+
+        if( !request_region( regions->pm_tmr_blk, regions->pm_tmr_len,
+                             regions->pm_tmr_nam ) )
+            goto cleanup5;
+    }
+
+    if( regions->p_blk )
+    {
+        if( !(regions->p_nam = region_name( subsys_name, "p_blk" )) )
+            goto cleanup5;
+
+        if( !request_region( regions->p_blk, 6, regions->p_nam ) )
+            goto cleanup6;
+    }
+
+    if( regions->gpe0_blk && regions->gpe0_len )
+    {
+        if( !(regions->gpe0_nam = region_name( subsys_name, "gpe0_blk" )) )
+            goto cleanup6;
+
+        if( !request_region( regions->gpe0_blk, regions->gpe0_len, 
+                             regions->gpe0_nam ) )
+            goto cleanup7;
+    }
+
+    if( regions->gpe1_blk && regions->gpe1_len )
+    {
+        if( !(regions->gpe1_nam = region_name( subsys_name, "gpe1_blk" )) )
+            goto cleanup7;
+
+        if( !request_region( regions->gpe1_blk, regions->gpe1_len,
+                             regions->gpe1_nam ) )
+            goto cleanup8;
+    }
+
+    if( (regions->gpe_ref_cnt = (atomic_t *) kmalloc( sizeof( atomic_t ) * 
+                                                      regions->gpe0_len * 8,
+                                                      GFP_ATOMIC)) == NULL )
+        goto cleanup9;
+
+    memset( regions->gpe_ref_cnt, 0x0, sizeof( atomic_t ) * regions->gpe0_len * 8 );
+
+        /* disable all events and ack them */
+    if( regions->pm1a_evt_blk )
+    {
+        outw( 0x0000, regions->pm1a_evt_blk + regions->pm1_evt_len/2 );
+        outw( 0xffff, regions->pm1a_evt_blk );
+    }
+
+    if( regions->pm1b_evt_blk )
+    {
+        outw( 0x0000, regions->pm1b_evt_blk + regions->pm1_evt_len/2 );
+        outw( 0xffff, regions->pm1b_evt_blk );
+    }
+
+    if( regions->gpe0_blk )
+    {
+        for( i=0 ; i<(regions->gpe0_len/2) ; i++ )
+        {
+            outb( 0x00, regions->gpe0_blk + regions->gpe0_len/2 + i );
+            outb( 0xff, regions->gpe0_blk + i );
+        }
+    }
+
+    if( regions->gpe1_blk )
+    {
+        for( i=0 ; i<(regions->gpe1_len/2) ; i++ )
+        {
+            outb( 0x00, regions->gpe1_blk + regions->gpe1_len/2 + i );
+            outb( 0xff, regions->gpe1_blk + i );
+        }
+    }
+
+    return 0;
+        
+  cleanup9:
+    if( regions->gpe1_blk )
+    {
+        release_region( regions->gpe1_blk, regions->gpe1_len );
+        regions->gpe1_blk = 0;
+    }
+
+  cleanup8:
+    if( regions->gpe0_blk )
+    {
+        release_region( regions->gpe0_blk, regions->gpe0_len );
+        regions->gpe0_blk = 0;
+    }
+
+  cleanup7:
+    if( regions->p_blk )
+    {
+        release_region( regions->p_blk, 6 );
+        regions->p_blk = 0;
+    }
+
+  cleanup6:
+    if( regions->pm_tmr_blk )
+    {
+        release_region( regions->pm_tmr_blk, regions->pm_tmr_len );
+        regions->pm_tmr_blk = 0;
+    }
+
+  cleanup5:
+    if( regions->pm2_cnt_blk )
+    {
+        release_region( regions->pm2_cnt_blk, regions->pm2_cnt_len );
+        regions->pm2_cnt_blk = 0;
+    }
+
+  cleanup4:
+    if( regions->pm1b_cnt_blk )
+    {
+        release_region( regions->pm1b_cnt_blk, regions->pm1_cnt_len );
+        regions->pm1b_cnt_blk = 0;
+    }
+
+  cleanup3:
+    if( regions->pm1a_cnt_blk )
+    {
+        release_region( regions->pm1a_cnt_blk, regions->pm1_cnt_len );
+        regions->pm1a_cnt_blk = 0;
+    }
+
+  cleanup2:
+    if( regions->pm1b_evt_blk )
+    {
+        release_region( regions->pm1b_evt_blk, regions->pm1_evt_len );
+        regions->pm1b_evt_blk = 0;
+    }
+
+  cleanup1:
+    if( regions->pm1a_evt_blk )
+    {
+        release_region( regions->pm1a_evt_blk, regions->pm1_evt_len );
+        regions->pm1a_evt_blk = 0;
+    }
+
+  cleanup0:
+    free_region_names( regions );
+    
+    return -EBUSY;
+}
+
+static int unregister_acpi_regions( generic_acpi_regions *regions )
+{
+    if( regions->pm1a_evt_blk && regions->pm1_evt_len )
+    {
+        release_region( regions->pm1a_evt_blk, regions->pm1_evt_len );
+        regions->pm1a_evt_blk = 0;
+    }
+    
+    if( regions->pm1b_evt_blk && regions->pm1_evt_len )
+    {
+        release_region( regions->pm1b_evt_blk, regions->pm1_evt_len );
+        regions->pm1b_evt_blk = 0;
+    }
+
+    if( regions->pm1a_cnt_blk && regions->pm1_cnt_len )
+    {
+        release_region( regions->pm1a_cnt_blk, regions->pm1_cnt_len );
+        regions->pm1a_cnt_blk = 0;
+    }
+
+    if( regions->pm1b_cnt_blk && regions->pm1_cnt_len )
+    {
+        release_region( regions->pm1b_cnt_blk, regions->pm1_cnt_len );
+        regions->pm1b_cnt_blk = 0;
+    }
+
+    if( regions->pm2_cnt_blk && regions->pm2_cnt_len )
+    {
+        release_region( regions->pm2_cnt_blk, regions->pm2_cnt_len );
+        regions->pm2_cnt_blk = 0;
+    }
+
+    if( regions->pm_tmr_blk && regions->pm_tmr_len )
+    {
+        release_region( regions->pm_tmr_blk, regions->pm_tmr_len );
+        regions->pm_tmr_blk = 0;
+    }
+
+    if( regions->p_blk )
+    {
+        release_region( regions->p_blk, 6 );
+        regions->p_blk = 0;
+    }
+
+    if( regions->gpe0_blk && regions->gpe0_len )
+    {
+        release_region( regions->gpe0_blk, regions->gpe0_len );
+        regions->gpe0_blk = 0;
+    }
+
+    if( regions->gpe1_blk && regions->gpe1_len )
+    {
+        release_region( regions->gpe1_blk, regions->gpe1_len );
+        regions->gpe1_blk = 0;
+    }
+
+    if( regions->gpe_ref_cnt )
+        kfree( regions->gpe_ref_cnt );
+    
+    free_region_names( regions );
+
+    return 0;
+}
+
+static void cobalt_acpi_handle_pm1_blk( u16 io_addr, u16 len, 
+                                       generic_acpi_regions * regions )
+{
+    cobalt_acpi_evt evt;
+    u16 sts, en;
+    
+    evt.hw_type = regions->hw_type;
+    
+    if( (sts = inw( io_addr )) &&
+        (en  = inw( io_addr + len/2 )) )
+    {
+
+
+            /* clear status bits */
+        outw( sts, io_addr);
+
+        if( (en  & GEN_ACPI_TMR_STS) &&
+            (sts & GEN_ACPI_TMR_STS) )
+        {
+            evt.ev_type = COBALT_ACPI_EVT_TMR;
+            evt.ev_data = 0x0;
+            cobalt_acpi_post_event( evt );
+        }
+        if( (en & GEN_ACPI_BM_STS) &&
+            (sts & GEN_ACPI_BM_STS) )
+        {
+            evt.ev_type = COBALT_ACPI_EVT_BM;
+            evt.ev_data = 0x0;
+            cobalt_acpi_post_event( evt );
+        }
+        if( (en  & GEN_ACPI_GBL_STS) &&
+            (sts & GEN_ACPI_GBL_STS) )
+        {
+            evt.ev_type = COBALT_ACPI_EVT_GBL;
+            evt.ev_data = 0x0;
+            cobalt_acpi_post_event( evt );
+        }
+        if( (en  & GEN_ACPI_PWRBTN_STS) &&
+            (sts & GEN_ACPI_PWRBTN_STS) )
+        {
+            evt.ev_type = COBALT_ACPI_EVT_PWRBTN;
+            evt.ev_data = 0x0;
+            cobalt_acpi_post_event( evt );
+        }
+        if( (en  & GEN_ACPI_SLPBTN_STS) &&
+            (sts & GEN_ACPI_SLPBTN_STS) )
+        {
+            evt.ev_type = COBALT_ACPI_EVT_SLPBTN;
+            evt.ev_data = 0x0;
+            cobalt_acpi_post_event( evt );
+        }
+        if( (en & GEN_ACPI_RTC_STS) &&
+            (sts & GEN_ACPI_RTC_STS) )
+        {
+            evt.ev_type = COBALT_ACPI_EVT_RTC;
+            evt.ev_data = 0x0;
+            cobalt_acpi_post_event( evt );
+        }
+        if( (sts & GEN_ACPI_WAK_STS) )
+        {
+            evt.ev_type = COBALT_ACPI_EVT_WAK;
+            evt.ev_data = 0x0;
+            cobalt_acpi_post_event( evt );
+        }
+    }
+}
+
+static void cobalt_acpi_handle_gpe_blk( u16 io_addr, u16 len, 
+                                        generic_acpi_regions * regions )
+{
+    cobalt_acpi_evt evt;
+    int i,j;
+    u8 sts, en;
+    
+    evt.hw_type = regions->hw_type;
+    evt.ev_type = COBALT_ACPI_EVT_GPE;
+
+    for( i=0 ; i<(len/2) ; i++ )
+    {
+        sts = inb( io_addr + i );
+        en =  inb( io_addr + len/2 + i );
+
+            /* clear status bits */
+        outb( sts, io_addr);
+
+        for( j=0 ; j<8 ; j++ )
+        {
+            if( (en  & 0x1) &&
+                (sts & 0x1) )
+            {
+                evt.ev_data = i*8 + j;
+                cobalt_acpi_post_event( evt );
+            }
+            en >>= 1;
+            sts >>= 1;
+        }
+    }
+}
+
+static int cobalt_acpi_generic_hw_handler( int irq, void *dev_id, 
+                                           struct pt_regs *regs, void * data )
+{
+    generic_acpi_regions * regions = (generic_acpi_regions *) data;
+    cobalt_acpi_evt evt;
+
+    evt.hw_type = regions->hw_type;
+
+        /* various PM events */
+    if( regions->pm1a_evt_blk )
+        cobalt_acpi_handle_pm1_blk( regions->pm1a_evt_blk, regions->pm1_evt_len, regions );
+
+    if( regions->pm1b_evt_blk )
+        cobalt_acpi_handle_pm1_blk( regions->pm1b_evt_blk, regions->pm1_evt_len, regions );
+
+    if( regions->gpe0_blk )
+        cobalt_acpi_handle_gpe_blk( regions->gpe0_blk, regions->gpe0_len, regions );
+
+    if( regions->gpe1_blk )
+        cobalt_acpi_handle_gpe_blk( regions->gpe1_blk, regions->gpe1_len, regions );
+        
+
+    return 0;
+}
+
+static int cobalt_acpi_generic_en_handler( u16 ev_type, u16 ev_data, int en, void *data )
+{
+    generic_acpi_regions * regions = (generic_acpi_regions *) data;
+    int block, offset;
+    u8 data8;
+    u16 data16;
+    
+    switch( ev_type )
+    {
+        case COBALT_ACPI_EVT_TMR:
+            data16 = inw( regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            
+            if( en )
+            {
+                data16 |= GEN_ACPI_TMR_STS;
+                atomic_inc( &regions->tmr_ref_cnt );
+            }
+            else
+            {
+                if( atomic_dec_and_test( &regions->tmr_ref_cnt ) )
+                    data16 &= ~GEN_ACPI_TMR_STS;
+            }
+            outw( data16, regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            break;
+            
+        case COBALT_ACPI_EVT_BM:
+            data16 = inw( regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            
+            if( en )
+            {
+                data16 |= GEN_ACPI_BM_STS;
+                atomic_inc( &regions->bm_ref_cnt );
+            }
+            else
+            {
+                if( atomic_dec_and_test( &regions->bm_ref_cnt ) )
+                    data16 &= ~GEN_ACPI_BM_STS;
+            }
+            outw( data16, regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            break;
+            
+        case COBALT_ACPI_EVT_GBL:
+            data16 = inw( regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            
+            if( en )
+            {
+                data16 |= GEN_ACPI_GBL_STS;
+                atomic_inc( &regions->gbl_ref_cnt );
+            }
+            else
+            {
+                if( atomic_dec_and_test( &regions->gbl_ref_cnt ) )
+                    data16 &= ~GEN_ACPI_GBL_STS;
+            }
+            outw( data16, regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            break;
+            
+        case COBALT_ACPI_EVT_PWRBTN:
+            data16 = inw( regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            
+            if( en )
+            {
+                data16 |= GEN_ACPI_PWRBTN_STS;
+                atomic_inc( &regions->pwrbtn_ref_cnt );
+            }
+            else
+            {
+                if( atomic_dec_and_test( &regions->pwrbtn_ref_cnt ) )
+                    data16 &= ~GEN_ACPI_PWRBTN_STS;
+            }
+            outw( data16, regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            break;
+            
+        case COBALT_ACPI_EVT_SLPBTN:
+            data16 = inw( regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            
+            if( en )
+            {
+                data16 |= GEN_ACPI_SLPBTN_STS;
+                atomic_inc( &regions->slpbtn_ref_cnt );
+            }
+            else
+            {
+                if( atomic_dec_and_test( &regions->slpbtn_ref_cnt ) )
+                    data16 &= ~GEN_ACPI_SLPBTN_STS;
+            }
+            outw( data16, regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            break;
+            
+        case COBALT_ACPI_EVT_RTC:
+            data16 = inw( regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            
+            if( en )
+            {
+                data16 |= GEN_ACPI_RTC_STS;
+                atomic_inc( &regions->rtc_ref_cnt );
+            }
+            else
+            {
+                if( atomic_dec_and_test( &regions->rtc_ref_cnt ) )
+                    data16 &= ~GEN_ACPI_RTC_STS;
+            }
+            outw( data16, regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            break;
+            
+        case COBALT_ACPI_EVT_WAK:
+            data16 = inw( regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            
+            if( en )
+            {
+                data16 |= GEN_ACPI_WAK_STS;
+                atomic_inc( &regions->wak_ref_cnt );
+            }
+            else
+            {
+                if( atomic_dec_and_test( &regions->wak_ref_cnt ) )
+                    data16 &= ~GEN_ACPI_WAK_STS;
+            }
+            outw( data16, regions->pm1a_evt_blk + (regions->pm1_evt_len / 2) );
+            break;
+            
+        case COBALT_ACPI_EVT_GPE:
+            if( (ev_data/8) >= (regions->gpe0_len / 2) )
+                return -EINVAL;
+            
+            block = ev_data / 8;
+            offset = ev_data % 8;
+            
+            data8 = inb( regions->gpe0_blk + (regions->gpe0_len / 2) + block );
+            
+            if( en )
+            {
+                data8 |= 0x1 << offset;
+                atomic_inc( &regions->gpe_ref_cnt[ev_data] );
+            }
+            else
+            {
+                if( atomic_dec_and_test( &regions->gpe_ref_cnt[ev_data] ) )
+                    data8 &= ~( 0x1 << offset );
+            }
+            
+            outb( data8, regions->gpe0_blk + (regions->gpe0_len / 2) + block );
+            
+            break;
+            
+        default:
+            return -EINVAL;
+                    
+    }
+
+    return 0;
+}
+
+/*
+ *
+ * Generic ServerWorks region code
+ *
+ */
+
+static int get_serverworks_regions( generic_acpi_regions *regions, u16 type )
+{
+   int reg;
+    
+    memset( regions, 0x0, sizeof( *regions ) );
+    
+    regions->hw_type = type;
+
+    regions->pm1_evt_len = 4;
+    regions->pm1_cnt_len = 2;
+    regions->pm_tmr_len = 4;
+    regions->gpe0_len = 8;
+
+    if( (reg = get_reg(OSB4_INDEX_PORT, OSB4_DATA_PORT, 0x20)) )
+        regions->pm1a_evt_blk = (u16) reg;
+    
+    if( (reg = get_reg(OSB4_INDEX_PORT, OSB4_DATA_PORT, 0x22)) )
+        regions->pm1a_cnt_blk = (u16) reg;
+    
+    if( (reg = get_reg(OSB4_INDEX_PORT, OSB4_DATA_PORT, 0x24)) )
+        regions->pm_tmr_blk = (u16) reg;
+    
+    if( (reg = get_reg(OSB4_INDEX_PORT, OSB4_DATA_PORT, 0x26)) )
+        regions->p_blk = (u16) reg;
+    
+    if( (reg = get_reg(OSB4_INDEX_PORT, OSB4_DATA_PORT, 0x28)) )
+        regions->gpe0_blk = (u16) reg;
+
+    if( type == COBALT_ACPI_HW_OSB4 )
+    {
+        regions->pm2_cnt_len = 1;
+        if( (reg = get_reg(OSB4_INDEX_PORT, OSB4_DATA_PORT, 0x2E)) )
+            regions->pm2_cnt_blk = (u16) reg;
+    }
+
+    switch( type )
+    {
+        case COBALT_ACPI_HW_OSB4:
+            return register_acpi_regions( regions, "OSB4" );
+
+        case COBALT_ACPI_HW_CSB5:
+            return register_acpi_regions( regions, "CSB5" );
+    }
+    
+    return -EINVAL;
+
+}
+
+/*
+ *
+ * ServerWorks OSB4
+ *
+ */
+
+static generic_acpi_regions osb4_regions;
+
+static int cobalt_acpi_osb4_init( void )
+{
+    int err;
+    
+    if( (err = get_osb4_regions( &osb4_regions )) < 0 )
+        return err;
+
+    if( (err = cobalt_acpi_register_hw_handler( COBALT_ACPI_HW_OSB4,
+                                                cobalt_acpi_generic_hw_handler, 
+                                                cobalt_acpi_generic_en_handler, 
+                                                &osb4_regions )) < 0 )
+        return err;
+
+    return 0;
+}
+
+static int cobalt_acpi_osb4_cleanup( void )
+{
+    unregister_acpi_regions( &osb4_regions );
+    return 0;
+}
+
+static int get_osb4_regions( generic_acpi_regions *regions)
+{
+    return get_serverworks_regions( regions, COBALT_ACPI_HW_OSB4 );
+}
+
+/*
+ *
+ * ServerWorks CSB5
+ *
+ */
+
+/* static generic_acpi_regions csb5_regions; */
+
+static generic_acpi_regions csb5_regions;
+
+static int cobalt_acpi_csb5_init( void )
+{
+    int err;
+    
+    if( (err = get_csb5_regions( &csb5_regions )) < 0 )
+        return err;
+
+    if( (err = cobalt_acpi_register_hw_handler( COBALT_ACPI_HW_CSB5,
+                                                cobalt_acpi_generic_hw_handler, 
+                                                cobalt_acpi_generic_en_handler, 
+                                                &csb5_regions )) < 0 )
+        return err;
+
+    return 0;
+}
+
+static int cobalt_acpi_csb5_cleanup( void )
+{
+    unregister_acpi_regions( &csb5_regions );
+    return 0;
+}
+
+static int get_csb5_regions( generic_acpi_regions *regions)
+{
+    return get_serverworks_regions( regions, COBALT_ACPI_HW_CSB5 );
+}
+
+/*
+ *
+ * NatSemi PC8731x
+ *
+ */
+static generic_acpi_regions pc8731x_regions;
+
+static int cobalt_acpi_pc8731x_init( void )
+{
+    int err;
+    
+    if( (err = get_pc8731x_regions( &pc8731x_regions )) < 0 )
+        return err;
+
+    if( (err = cobalt_acpi_register_hw_handler( COBALT_ACPI_HW_PC8731X,
+                                                cobalt_acpi_generic_hw_handler, 
+                                                cobalt_acpi_generic_en_handler, 
+                                                &pc8731x_regions )) < 0 )
+        return err;
+
+    return 0;
+}
+
+static int cobalt_acpi_pc8731x_cleanup( void )
+{
+    unregister_acpi_regions( &pc8731x_regions );
+    return 0;
+}
+
+static int get_pc8731x_regions( generic_acpi_regions *regions )
+{
+    int reg;
+    u16 addr;
+    
+    memset( regions, 0x0, sizeof( *regions ) );
+
+    regions->hw_type = COBALT_ACPI_HW_PC8731X;
+
+    regions->pm1_evt_len = 4;
+    regions->pm1_cnt_len = 2;
+    regions->pm_tmr_len = 4;
+    regions->gpe0_len = 4;
+    
+        /* superi/o -- select pm logical device and get base address */
+    addr = superio_ldev_base(PC87317_DEV_PM);
+    if( addr )
+    {
+            /* get registers */
+        if( (reg = get_reg(addr, addr + 1, 0x08)) )
+            regions->pm1a_evt_blk = reg;
+
+        if( (reg = get_reg(addr, addr + 1, 0x0a)) )
+            regions->pm_tmr_blk = reg;
+
+        if( (reg = get_reg(addr, addr + 1, 0x0c)) )
+            regions->pm1a_cnt_blk = reg;
+
+        if( (reg = get_reg(addr, addr + 1, 0x0e)) )
+            regions->gpe0_blk = reg;
+    }
+    
+    return register_acpi_regions( regions, "pc8731x" );
+}
+
+/*
+ *
+ * NatSemi PC8741x
+ *
+ */
+
+static generic_acpi_regions pc8741x_regions;
+
+static int cobalt_acpi_pc8741x_init( void )
+{
+    int err;
+    
+    if( (err = get_pc8741x_regions( &pc8741x_regions )) < 0 )
+        return err;
+
+    if( (err = cobalt_acpi_register_hw_handler( COBALT_ACPI_HW_PC8741X,
+                                                cobalt_acpi_generic_hw_handler, 
+                                                cobalt_acpi_generic_en_handler, 
+                                                &pc8741x_regions )) < 0 )
+        return err;
+
+    return 0;
+}
+
+static int cobalt_acpi_pc8741x_cleanup( void )
+{
+    unregister_acpi_regions( &pc8741x_regions );
+    return 0;
+}
+
+static int get_pc8741x_regions( generic_acpi_regions *regions )
+{
+    int reg;
+    
+    memset( regions, 0x0, sizeof( *regions ) );
+
+    regions->hw_type = COBALT_ACPI_HW_PC8741X;
+
+    regions->pm1_evt_len = 4;
+    regions->pm1_cnt_len = 2;
+    regions->pm_tmr_len = 4;
+    regions->gpe0_len = 8;
+    
+        /* get registers */
+    if( (reg = superio_ldev_base_n(PC87417_DEV_SWC, 1)) )
+        regions->pm1a_evt_blk = reg;
+
+    if( (reg = superio_ldev_base_n(PC87417_DEV_SWC, 2)) )
+        regions->pm1a_cnt_blk = reg;
+
+    if( (reg = superio_ldev_base_n(PC87417_DEV_SWC, 3)) )
+        regions->gpe0_blk = reg;
+
+    return register_acpi_regions( regions, "pc8741x" );
+}
+
+/*
+ *
+ * Platform support
+ * 
+ */
+
+/*
+ *
+ * Monterey
+ *
+ */
+
+static u16 cobalt_acpi_monterey_osb4_table[] = {
+/* GPE  0 */ COBALT_ACPI_EVT_NONE,
+/* GPE  1 */ COBALT_ACPI_EVT_NONE,
+/* GPE  2 */ COBALT_ACPI_EVT_NONE,
+/* GPE  3 */ COBALT_ACPI_EVT_NONE,
+/* GPE  4 */ COBALT_ACPI_EVT_NONE,
+/* GPE  5 */ COBALT_ACPI_EVT_NONE,
+/* GPE  6 */ COBALT_ACPI_EVT_SLED,
+/* GPE  7 */ COBALT_ACPI_EVT_NONE,
+/* GPE  8 */ COBALT_ACPI_EVT_NONE,
+/* GPE  9 */ COBALT_ACPI_EVT_NONE,
+/* GPE 10 */ COBALT_ACPI_EVT_NONE,
+/* GPE 11 */ COBALT_ACPI_EVT_NONE,
+/* GPE 12 */ COBALT_ACPI_EVT_NONE,
+/* GPE 13 */ COBALT_ACPI_EVT_NONE,
+/* GPE 14 */ COBALT_ACPI_EVT_NONE,
+/* GPE 15 */ COBALT_ACPI_EVT_NONE };
+
+static u16 cobalt_acpi_monterey_superio_table[] = {
+/* GPE  0 */ COBALT_ACPI_EVT_NONE,
+/* GPE  1 */ COBALT_ACPI_EVT_NONE,
+/* GPE  2 */ COBALT_ACPI_EVT_NONE,
+/* GPE  3 */ COBALT_ACPI_EVT_NONE,
+/* GPE  4 */ COBALT_ACPI_EVT_NONE,
+/* GPE  5 */ COBALT_ACPI_EVT_NONE,
+/* GPE  6 */ COBALT_ACPI_EVT_NONE,
+/* GPE  7 */ COBALT_ACPI_EVT_NONE,
+/* GPE  8 */ COBALT_ACPI_EVT_NONE,
+/* GPE  9 */ COBALT_ACPI_EVT_NONE,
+/* GPE 10 */ COBALT_ACPI_EVT_NONE,
+/* GPE 11 */ COBALT_ACPI_EVT_NONE,
+/* GPE 12 */ COBALT_ACPI_EVT_NONE,
+/* GPE 13 */ COBALT_ACPI_EVT_NONE,
+/* GPE 14 */ COBALT_ACPI_EVT_NONE,
+/* GPE 15 */ COBALT_ACPI_EVT_NONE,
+/* GPE 16 */ COBALT_ACPI_EVT_NONE,
+/* GPE 17 */ COBALT_ACPI_EVT_NONE,
+/* GPE 18 */ COBALT_ACPI_EVT_NONE,
+/* GPE 19 */ COBALT_ACPI_EVT_NONE,
+/* GPE 20 */ COBALT_ACPI_EVT_NONE,
+/* GPE 21 */ COBALT_ACPI_EVT_NONE,
+/* GPE 22 */ COBALT_ACPI_EVT_NONE,
+/* GPE 23 */ COBALT_ACPI_EVT_NONE,
+/* GPE 24 */ COBALT_ACPI_EVT_NONE,
+/* GPE 25 */ COBALT_ACPI_EVT_NONE,
+/* GPE 26 */ COBALT_ACPI_EVT_NONE,
+/* GPE 27 */ COBALT_ACPI_EVT_NONE,
+/* GPE 28 */ COBALT_ACPI_EVT_NONE,
+/* GPE 29 */ COBALT_ACPI_EVT_NONE,
+/* GPE 30 */ COBALT_ACPI_EVT_NONE,
+/* GPE 31 */ COBALT_ACPI_EVT_NONE };
+
+static int cobalt_acpi_monterey_init( void )
+{
+    int err;
+    
+    err = cobalt_acpi_register_trans_table( COBALT_ACPI_HW_OSB4, 
+                                            sizeof( cobalt_acpi_monterey_osb4_table )/sizeof( u16 ),
+                                            cobalt_acpi_monterey_osb4_table );                        
+    if( err < 0 )
+        return err;
+
+    err = cobalt_acpi_register_trans_table( COBALT_ACPI_HW_PC8731X, 
+                                            sizeof( cobalt_acpi_monterey_superio_table )/sizeof( u16 ),
+                                            cobalt_acpi_monterey_superio_table );
+    if( err < 0 )
+        return err;
+
+    return 0;
+}
+
+static int cobalt_acpi_monterey_cleanup( void )
+{
+    cobalt_acpi_unregister_trans_table( COBALT_ACPI_HW_OSB4 );
+    cobalt_acpi_unregister_trans_table( COBALT_ACPI_HW_PC8731X );
+
+    return 0;
+}
+
+/*
+ *
+ * Alpine
+ *
+ */
+
+static u16 cobalt_acpi_alpine_csb5_table[] = {
+/* GPE  0 */ COBALT_ACPI_EVT_NONE,
+/* GPE  1 */ COBALT_ACPI_EVT_NONE,
+/* GPE  2 */ COBALT_ACPI_EVT_NONE,
+/* GPE  3 */ COBALT_ACPI_EVT_FAN,
+/* GPE  4 */ COBALT_ACPI_EVT_NONE,
+/* GPE  5 */ COBALT_ACPI_EVT_SM_INT,
+/* GPE  6 */ COBALT_ACPI_EVT_THERM,
+/* GPE  7 */ COBALT_ACPI_EVT_NONE,
+/* GPE  8 */ COBALT_ACPI_EVT_NONE,
+/* GPE  9 */ COBALT_ACPI_EVT_NONE,
+/* GPE 10 */ COBALT_ACPI_EVT_NONE,
+/* GPE 11 */ COBALT_ACPI_EVT_NONE,
+/* GPE 12 */ COBALT_ACPI_EVT_NONE,
+/* GPE 13 */ COBALT_ACPI_EVT_NONE,
+/* GPE 14 */ COBALT_ACPI_EVT_NONE,
+/* GPE 15 */ COBALT_ACPI_EVT_NONE };
+
+static u16 cobalt_acpi_alpine_superio_table[] = {
+/* GPE  0 */ COBALT_ACPI_EVT_NONE,
+/* GPE  1 */ COBALT_ACPI_EVT_NONE,
+/* GPE  2 */ COBALT_ACPI_EVT_NONE,
+/* GPE  3 */ COBALT_ACPI_EVT_NONE,
+/* GPE  4 */ COBALT_ACPI_EVT_NONE,
+/* GPE  5 */ COBALT_ACPI_EVT_NONE,
+/* GPE  6 */ COBALT_ACPI_EVT_NONE,
+/* GPE  7 */ COBALT_ACPI_EVT_NONE,
+/* GPE  8 */ COBALT_ACPI_EVT_NONE,
+/* GPE  9 */ COBALT_ACPI_EVT_NONE,
+/* GPE 10 */ COBALT_ACPI_EVT_NONE,
+/* GPE 11 */ COBALT_ACPI_EVT_NONE,
+/* GPE 12 */ COBALT_ACPI_EVT_NONE,
+/* GPE 13 */ COBALT_ACPI_EVT_NONE,
+/* GPE 14 */ COBALT_ACPI_EVT_NONE,
+/* GPE 15 */ COBALT_ACPI_EVT_NONE,
+/* GPE 16 */ COBALT_ACPI_EVT_NONE,
+/* GPE 17 */ COBALT_ACPI_EVT_NONE,
+/* GPE 18 */ COBALT_ACPI_EVT_NONE,
+/* GPE 19 */ COBALT_ACPI_EVT_NONE,
+/* GPE 20 */ COBALT_ACPI_EVT_NONE,
+/* GPE 21 */ COBALT_ACPI_EVT_NONE,
+/* GPE 22 */ COBALT_ACPI_EVT_NONE,
+/* GPE 23 */ COBALT_ACPI_EVT_NONE,
+/* GPE 24 */ COBALT_ACPI_EVT_NONE,
+/* GPE 25 */ COBALT_ACPI_EVT_NONE,
+/* GPE 26 */ COBALT_ACPI_EVT_NONE,
+/* GPE 27 */ COBALT_ACPI_EVT_NONE,
+/* GPE 28 */ COBALT_ACPI_EVT_NONE,
+/* GPE 29 */ COBALT_ACPI_EVT_NONE,
+/* GPE 30 */ COBALT_ACPI_EVT_NONE,
+/* GPE 31 */ COBALT_ACPI_EVT_NONE };
+
+static int cobalt_acpi_alpine_init( void )
+{
+    int err;
+    
+    err = cobalt_acpi_register_trans_table( COBALT_ACPI_HW_CSB5, 
+                                            sizeof( cobalt_acpi_alpine_csb5_table )/sizeof( u16 ),
+                                            cobalt_acpi_alpine_csb5_table );                          
+    if( err < 0 )
+        return err;
+
+    err = cobalt_acpi_register_trans_table( COBALT_ACPI_HW_PC8741X, 
+                                            sizeof( cobalt_acpi_alpine_superio_table )/sizeof( u16 ),
+                                            cobalt_acpi_alpine_superio_table );
+    if( err < 0 )
+        return err;
+
+    return 0;
+}
+
+static int cobalt_acpi_alpine_cleanup( void )
+{
+    cobalt_acpi_unregister_trans_table( COBALT_ACPI_HW_CSB5 );
+    cobalt_acpi_unregister_trans_table( COBALT_ACPI_HW_PC8741X );
+
+    return 0;
+}
+
+/*
+ * end platform support
+ */
+#ifdef CONFIG_COBALT_EMU_ACPI
+/*
+ * This is all necessary because we don't have BIOS support for ACPI yet.
+ * We can fake it here, and when full support is ready just yank this.
+ */
+typedef struct {
+        char *device_type;
+        char *device_instance;
+        u32 event_type;
+        u32 event_data;
+        struct list_head list;
+} cobalt_acpi_event_t;
+
+#define COBALT_ACPI_MAX_STRING_LENGTH   80
+
+static LIST_HEAD(cobalt_acpi_event_list);
+static DECLARE_WAIT_QUEUE_HEAD(cobalt_acpi_event_wait_queue);
+static int event_is_open = 0;
+static spinlock_t cobalt_acpi_event_lock = SPIN_LOCK_UNLOCKED;
+
+static struct proc_dir_entry *cobalt_acpi_proc_root;
+static struct proc_dir_entry *cobalt_acpi_proc_event;
+
+static struct file_operations proc_event_ops = {
+        open: cobalt_acpi_open_event,
+        read: cobalt_acpi_read_event,
+        release: cobalt_acpi_close_event,
+        poll: cobalt_acpi_poll_event,
+};
+
+static int
+cobalt_acpi_setup_proc(void)
+{
+        cobalt_acpi_proc_root = proc_mkdir("acpi", NULL);
+        if (!cobalt_acpi_proc_root) {
+                return -ENOMEM;
+        }
+
+        cobalt_acpi_proc_event = create_proc_entry("event", S_IRUSR, 
+                                                cobalt_acpi_proc_root);
+        if (!cobalt_acpi_proc_event) {
+                return -ENOMEM;
+        }
+
+        cobalt_acpi_proc_event->proc_fops = &proc_event_ops;
+ 
+        return 0;
+}
+
+
+int
+cobalt_acpi_generate_proc_evt( cobalt_acpi_evt * evt )
+{
+        cobalt_acpi_event_t *event = NULL, *tmp;
+        unsigned long flags = 0;
+        char *dev_type;
+        char *dev_instance;
+        u32 event_type;
+        u32 event_data;
+        struct list_head *pos;
+
+        /* drop event on the floor if no one's listening */
+        if (!event_is_open)
+                return 0;
+        
+        event_type = (evt->ev_type << 0x10) |
+            evt->hw_type;
+        event_data = evt->ev_data;
+
+
+            /*
+             * Check to see if an event of this type is already
+             * pending
+             */
+        spin_lock_irqsave(&cobalt_acpi_event_lock, flags);
+        list_for_each( pos, &cobalt_acpi_event_list )
+            {
+                tmp = list_entry(pos, cobalt_acpi_event_t, list);
+                if( (tmp->event_type == event_type) &&
+                    (tmp->event_data == event_data) )
+                {
+                    spin_unlock_irqrestore(&cobalt_acpi_event_lock, flags);
+                    return 0;
+                }
+
+
+            }
+        spin_unlock_irqrestore(&cobalt_acpi_event_lock, flags);
+
+
+            /* parse the event struct */
+        switch( evt->ev_type )
+        {
+            case COBALT_ACPI_EVT_TMR:
+                dev_type = "generic";
+                dev_instance = "timer";
+                break;
+
+            case COBALT_ACPI_EVT_BM:
+                dev_type = "generic";
+                dev_instance = "bus-master";
+                break;
+                
+            case COBALT_ACPI_EVT_GBL:
+                dev_type = "generic";
+                dev_instance = "global";
+                break;      
+                
+            case COBALT_ACPI_EVT_PWRBTN:
+                dev_type = "button";
+                dev_instance = "power";
+                break;      
+
+            case COBALT_ACPI_EVT_SLPBTN:
+                dev_type = "button";
+                dev_instance = "sleep";
+                break;      
+                
+            case COBALT_ACPI_EVT_RTC:
+                dev_type = "generic";
+                dev_instance = "rtc";
+                break;      
+
+            case COBALT_ACPI_EVT_WAK:
+                dev_type = "generic";
+                dev_instance = "wake";
+                break;      
+
+            case COBALT_ACPI_EVT_GPE:
+                dev_type = "generic";
+                dev_instance = "gpe";
+                break;      
+
+            case COBALT_ACPI_EVT_SLED:
+                dev_type = "cobalt";
+                dev_instance = "sled";
+                break;      
+                
+            case COBALT_ACPI_EVT_THERM:
+                dev_type = "cobalt";
+                dev_instance = "therm_trip";
+                break;
+
+            case COBALT_ACPI_EVT_FAN:
+                dev_type = "cobalt";
+                dev_instance = "fan";
+                break;
+
+            case COBALT_ACPI_EVT_SM_INT:
+                dev_type = "cobalt";
+                dev_instance = "sm_int";
+                break;
+
+            case COBALT_ACPI_EVT_VOLT:
+                dev_type = "cobalt";
+                dev_instance = "volt_trip";
+                break;
+                
+            default:
+                dev_type = "unknown";
+                dev_instance = "unknown";
+                break;
+        }
+              
+                
+        /*
+         * Allocate a new event structure.
+         */
+        event = kmalloc(sizeof(*event), GFP_ATOMIC);
+        if (!event)
+                goto alloc_error;
+
+        event->device_type=NULL;
+        event->device_instance=NULL;
+
+        event->device_type = kmalloc(strlen(dev_type) + sizeof(char), 
+                GFP_ATOMIC);
+        if (!event->device_type)
+                goto alloc_error;
+
+        event->device_instance = kmalloc(strlen(dev_instance) + sizeof(char), 
+                GFP_ATOMIC );
+        if (!event->device_instance)
+                goto alloc_error;
+
+        /*
+         * Set event data.
+         */
+        strcpy(event->device_type, dev_type);
+        strcpy(event->device_instance, dev_instance);
+        event->event_type = event_type;
+        event->event_data = event_data;
+
+        /*
+         * Add to the end of our event list.
+         */
+        spin_lock_irqsave(&cobalt_acpi_event_lock, flags);
+        list_add_tail(&event->list, &cobalt_acpi_event_list);
+        spin_unlock_irqrestore(&cobalt_acpi_event_lock, flags);
+
+        /*
+         * Signal waiting threads (if any).
+         */
+        wake_up_interruptible(&cobalt_acpi_event_wait_queue);
+
+        return 0;
+
+alloc_error:
+        if(event)
+        {
+            if (event->device_instance)
+                kfree(event->device_instance);
+            
+            if (event->device_type)
+                kfree(event->device_type);
+            
+            kfree(event);               
+        }
+
+        return -ENOMEM;
+}
+
+
+static int 
+cobalt_acpi_open_event(struct inode *inode, struct file *file)
+{
+    unsigned long flags;
+    spin_lock_irqsave(&cobalt_acpi_event_lock, flags);
+
+    if (event_is_open)
+        goto out_busy;
+
+    event_is_open = 1;
+    
+    spin_unlock_irqrestore(&cobalt_acpi_event_lock, flags);
+    return 0;
+
+out_busy:
+    spin_unlock_irqrestore(&cobalt_acpi_event_lock, flags);
+    return -EBUSY;
+}
+
+
+static int 
+cobalt_acpi_close_event(struct inode *inode, struct file *file)
+{
+    unsigned long flags;
+    struct list_head *pos;
+    cobalt_acpi_event_t *tmp;
+    
+    spin_lock_irqsave(&cobalt_acpi_event_lock, flags);
+
+    while( (pos = list_pop( &cobalt_acpi_event_list )) )
+    {
+        tmp = list_entry(pos, cobalt_acpi_event_t, list);
+        if (tmp->device_instance)
+                kfree(tmp->device_instance);
+            
+        if (tmp->device_type)
+                kfree(tmp->device_type);
+        
+        kfree( tmp );
+    }
+    event_is_open = 0;
+    spin_unlock_irqrestore(&cobalt_acpi_event_lock, flags);
+    return 0;
+}
+
+#define ACPI_MAX_STRING_LENGTH          80
+static ssize_t
+cobalt_acpi_read_event(struct file *file, char *buf, size_t count, loff_t *ppos)
+{
+        cobalt_acpi_event_t *event = NULL;
+        unsigned long flags = 0;
+        static char str[ACPI_MAX_STRING_LENGTH];
+        static int strsize;
+        static char *ptr;
+
+        if (!strsize) {
+                DECLARE_WAITQUEUE(wait, current);
+
+                if (list_empty(&cobalt_acpi_event_list)) {
+                        if (file->f_flags & O_NONBLOCK) {
+                                return -EAGAIN;
+                        }
+                        set_current_state(TASK_INTERRUPTIBLE);
+                        add_wait_queue(&cobalt_acpi_event_wait_queue, &wait);
+        
+                        if (list_empty(&cobalt_acpi_event_list)) {
+                                schedule();
+                        }
+        
+                        remove_wait_queue(&cobalt_acpi_event_wait_queue, &wait);
+                        set_current_state(TASK_RUNNING);
+         
+                        if (signal_pending(current)) {
+                                return -ERESTARTSYS;
+                        }
+                }
+
+                spin_lock_irqsave(&cobalt_acpi_event_lock, flags);
+                event = list_entry(cobalt_acpi_event_list.next, 
+                        cobalt_acpi_event_t, list);
+                list_del(&event->list);
+                spin_unlock_irqrestore(&cobalt_acpi_event_lock, flags);
+
+                strsize = sprintf(str, "%s %s %08x %08x\n",
+                        event->device_type, event->device_instance,
+                        event->event_type, event->event_data);
+                ptr = str;
+
+                kfree(event->device_type);
+                kfree(event->device_instance);
+                kfree(event);
+        }
+        if (strsize < count)
+                count = strsize;
+
+        if (copy_to_user(buf, ptr, count))
+                return -EFAULT;
+
+        *ppos += count;
+        strsize -= count;
+        ptr += count;
+
+        return count;
+}
+
+static unsigned int 
+cobalt_acpi_poll_event(struct file *file, poll_table *wait)
+{
+        poll_wait(file, &cobalt_acpi_event_wait_queue, wait);
+        if (!list_empty(&cobalt_acpi_event_list))
+                return POLLIN | POLLRDNORM;
+        return 0;
+}
+
+#endif /* CONFIG_COBALT_EMU_ACPI */

drivers/cobalt/fans.c

@@ +1 @@
+/* $Id: fans.c,v 1.18 2002/03/16 21:33:02 duncan Exp $
+ * Copyright (c) 2000-2001 Sun Microsystems, Inc 
+ *
+ * This should be SMP safe.  The critical data (the info list) and the
+ * critical code (inb()/outb() calls) are protected by fan_lock.  It is 
+ * locked at the only external access points - the proc read()/write() 
+ * methods. --TPH
+ */
+#include <linux/config.h>
+#if defined(CONFIG_COBALT_FANS) || defined(CONFIG_COBALT_FANS_MODULE)
+
+#include <stdarg.h>
+#include <stddef.h>
+
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/errno.h>
+#include <linux/proc_fs.h>
+#include <linux/time.h>
+
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+
+#define FAN_DRIVER      "Cobalt Networks Fan driver"
+#define FAN_DRIVER_VMAJ 1
+#define FAN_DRIVER_VMIN 0
+
+/* GPIO base is assigned by BIOS, perhaps we should probe it */
+#define GPIO_BASE               0x600
+#define FAN_GPIO_MAX            8
+#define FAN_RPM(fn,ms)          ((fn).hcyl * (60000000 / (fn).poles) / (ms))
+#define FAN_VALID(f)            ((f)->mask && (f)->poles)
+#define FAN_CACHE_TIME          2 /* seconds */
+#define FAN_SAMPLE_LEN          50 /* milliseconds */
+
+/* 
+ * fans are attached to GPIO pins
+ * each pin is part of a port, multiple fans are controlled by a port
+ */
+struct fan_info {
+        int id;                 /* fan number */
+        uint8_t mask;           /* mask within the port */
+        int poles;              /* # of magnetic poles (divisor) */
+        int hcyl;               /* # of half cycles */
+        unsigned rpm;           /* calculated fan speed */
+        char *type;             /* FAN description */
+};
+
+struct fan_gpio {
+        int port;               /* GPIO Port */
+        uint16_t base;          /* GPDI (data in) base address */
+        uint8_t latch;          /* latched 'data in' value */
+        long tcache;            /* latched 'epoch' value */
+        struct fan_info fan[FAN_GPIO_MAX];
+};
+
+/* the current fanlist */
+static struct fan_gpio *sys_fanlist;
+static spinlock_t fan_lock = SPIN_LOCK_UNLOCKED;
+
+static struct fan_gpio fan_gpio_raqxtr[] = {
+        {
+                port: 1,
+                base: GPIO_BASE,
+                fan: {
+                        { mask: 0x2, poles: 4, type: "processor" },
+                        { mask: 0x4, poles: 4, type: "processor" },
+                        { mask: 0 },
+                },
+        },
+        {
+                port: 2,
+                base: GPIO_BASE+4,
+                fan: {
+                        { mask: 0x10, poles: 4 },
+                        { mask: 0x20, poles: 4 },
+                        { mask: 0x40, poles: 4 },
+                        { mask: 0x80, poles: 4 },
+                        { mask: 0 },
+                },
+        },
+        { port: -1 }
+};
+
+static struct fan_gpio fan_gpio_alpine[] = {
+        {
+                port: 2,
+                base: GPIO_BASE+7,
+                fan:  {
+                        { mask: 0x4, poles: 4 },
+                        { mask: 0x8, poles: 4 },
+                        { mask: 0x10, poles: 4 },
+                        { mask: 0x20, poles: 4, type: "power supply" },
+                        { mask: 0x40, poles: 4, type: "processor" },
+                        { mask: 0 },
+                },
+        },
+        { port: -1 }
+};
+
+#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_COBALT_OLDPROC
+static struct proc_dir_entry *proc_faninfo;
+#endif /* CONFIG_COBALT_OLDPROC */
+static struct proc_dir_entry *proc_cfaninfo;
+#endif /* CONFIG_PROC_FS */
+
+static struct fan_info *fan_info_find(int id);
+static int fan_control(struct fan_info *fi, int todo);
+static int fan_info_print(char *buffer);
+static int fan_read_proc(char *buf, char **start, off_t pos,
+                         int len, int *eof, void *x);
+static int fan_write_proc(struct file *file, const char *buf,
+                          unsigned long len, void *x);
+
+int __init 
+cobalt_fan_init(void)
+{
+        if (cobt_is_monterey()) {
+                sys_fanlist = (struct fan_gpio *)fan_gpio_raqxtr;
+        } else if (cobt_is_alpine()) {
+                sys_fanlist = (struct fan_gpio *)fan_gpio_alpine;
+        } else {
+                sys_fanlist = NULL;
+                return -ENOSYS;
+        }
+
+    printk(KERN_INFO "%s %d.%d (modified by jeff@404ster.com)\n", FAN_DRIVER,FAN_DRIVER_VMAJ,FAN_DRIVER_VMIN);
+    
+#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_COBALT_OLDPROC
+        proc_faninfo = create_proc_entry("faninfo", S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH, NULL);
+        if (!proc_faninfo) {
+                EPRINTK("can't create /proc/faninfo\n");
+                return -ENOENT;
+        }
+        proc_faninfo->owner = THIS_MODULE;
+        proc_faninfo->read_proc = fan_read_proc;
+        proc_faninfo->write_proc = fan_write_proc;
+#endif /* CONFIG_COBALT_OLDPROC */
+        proc_cfaninfo = create_proc_entry("faninfo", S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH, proc_cobalt);
+        if (!proc_cfaninfo) {
+                EPRINTK("can't create /proc/cobalt/faninfo\n");
+                return -ENOENT;
+        }
+        proc_cfaninfo->owner = THIS_MODULE;
+        proc_cfaninfo->read_proc = fan_read_proc;
+        proc_cfaninfo->write_proc = fan_write_proc;
+#endif /* CONFIG_PROC_FS */
+
+        return 0;
+}
+
+static void __exit
+cobalt_fan_exit(void)
+{
+#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_COBALT_OLDPROC
+        if (proc_faninfo) {
+                remove_proc_entry("faninfo", NULL);
+        }
+#endif /* CONFIG_COBALT_OLDPROC */
+        if (proc_cfaninfo) {
+                remove_proc_entry("faninfo", proc_cobalt);
+        }
+#endif /* CONFIG_PROC_FS */
+
+        sys_fanlist = NULL;
+}
+
+/*
+ * Samples fan tachometer square wave to calculate and report RPM
+ */
+static int 
+get_faninfo(char *buffer)
+{
+        struct fan_gpio *fg;
+        struct timeval utime;
+        unsigned long elapsed, start;
+        int i, val, len;
+
+        if (!sys_fanlist || !cobt_is_5k()) {
+                /* software is keyed off this string - do not change it ! */
+                return sprintf(buffer, "Fan monitoring not supported.\n");
+        }
+
+        /* save start timestamp */
+        do_gettimeofday(&utime);
+        start = utime.tv_usec;
+
+        /* initialize 'previous' values. we do edge detection by
+         * looking for transitions from previous values */
+        for (fg = sys_fanlist; fg->port >= 0; fg++) {
+                if (fg->tcache && utime.tv_sec < fg->tcache+FAN_CACHE_TIME) {
+                        return fan_info_print(buffer);
+                }
+                fg->tcache = utime.tv_sec;
+                fg->latch = inb(fg->base);
+                for (i = 0; i < FAN_GPIO_MAX; i++) {
+                        fg->fan[i].hcyl = 0;
+                        fg->fan[i].rpm = 0;
+                }
+        }
+
+        /* We are counting the number of halfcycles in a square wave
+         * that pass in a given amount of time to determine frequency */
+        do {
+                for (fg=sys_fanlist; fg->port>=0; fg++) {
+                        val = inb(fg->base);
+                        for (i=0; i<FAN_GPIO_MAX; i++) {
+                                struct fan_info *p = &fg->fan[i];
+                                if (FAN_VALID(p)) {
+                                        if ((val ^ fg->latch) & p->mask) {
+                                                p->hcyl++;
+                                        }
+                                }
+                        }
+                        fg->latch = val;
+                }
+
+                do_gettimeofday(&utime);
+                if (utime.tv_usec > start) {
+                        elapsed = utime.tv_usec - start;
+                } else {
+                        elapsed = utime.tv_usec + 1000001 - start;
+                }
+
+        } while (elapsed < (FAN_SAMPLE_LEN) * 1000);
+
+        /* Fan rpm = 60 / ( t * poles )
+         *  where t is 1/2 the period and poles are the number of 
+         *  magnetic poles for the fan.
+         *  
+         * For the Sunon KDE1204PKBX fans on Raq XTR, poles = 4
+         * So, in terms of cycles,
+         *
+         *  rpm = 60 s/m    halfcycles       
+         *        ------ *  -------------- * 1,000,000 us/s * 2
+         *        4         2 * elapsed us
+         *
+         *      = (60,000,000 / 4 poles) * halfcycles / elapsed
+         *      = 15,000,000 * halfcycles / elapsed
+         *
+         * Note, by this method and sampling for 50ms, our accuracy
+         *  is +/- 300 rpm.  The fans are spec'ed for +/- 1000 rpm 
+         */
+        for (val=len=0, fg=sys_fanlist; fg->port>=0; fg++) {
+                for (i=0; i<FAN_GPIO_MAX; i++) {
+                        struct fan_info *p = &fg->fan[i];
+                        if (FAN_VALID(p)) {
+                                p->id = val++;
+                                p->rpm = FAN_RPM(fg->fan[i], elapsed);
+                                len += sprintf(buffer+len, "fan %d     : %u\n",
+                                        p->id, p->rpm);
+                        }
+                }
+        }
+
+        return len;
+}
+
+static int
+fan_info_print(char *buffer)
+{
+        struct fan_gpio *fg;
+        int i, len=0;
+
+        if (!sys_fanlist) {
+                return -1;
+        }
+
+        for (fg=sys_fanlist; fg->port>=0; fg++) {
+                for (i=0; i<FAN_GPIO_MAX; i++) {
+                        struct fan_info *p = &fg->fan[i];
+                        if (FAN_VALID(p)) {
+                                len += sprintf(buffer+len, "fan %d     : %u\n",
+                                        p->id, p->rpm);
+                        }
+                }
+        }
+
+        return len;
+}
+
+/* FIXME: generify */
+static int
+fan_control(struct fan_info *fi, int todo)
+{
+        if (fi && cobt_is_alpine()) {
+                switch (fi->id) {
+                case 4: {
+                        /* CPU FAN */
+                        uint8_t gpdo = inb(GPIO_BASE+6);
+
+                        if (todo) {
+                                gpdo &= ~fi->mask; /* 0 = on */
+                        } else {
+                                gpdo |= fi->mask;  /* 1 = off */
+                        }
+                        outb(gpdo, GPIO_BASE+6);
+                        return 0;
+                }
+                default:
+                        return -ENODEV;
+                }
+        }
+
+        return -ENOSYS;
+}
+
+static struct fan_info *
+fan_info_find(int id)
+{
+        struct fan_gpio *fg;
+        int i;
+
+        if (!sys_fanlist) {
+                return NULL;
+        }
+
+        for (fg=sys_fanlist; fg->port>=0; fg++) {
+                for (i=0; i<FAN_GPIO_MAX; i++) {
+                        if (FAN_VALID(&fg->fan[i])) {
+                                if (fg->fan[i].id == id) {
+                                        return &fg->fan[i];
+                                }
+                        }
+                }
+        }
+
+        return NULL;
+}
+
+#ifdef CONFIG_PROC_FS
+static int 
+fan_read_proc(char *buf, char **start, off_t pos, int len, int *eof, void *x)
+{
+        int plen;
+
+        //MOD_INC_USE_COUNT;
+
+        spin_lock(&fan_lock);
+        plen = get_faninfo(buf);
+        spin_unlock(&fan_lock);
+
+        //MOD_DEC_USE_COUNT;
+
+        return cobalt_gen_proc_read(buf, plen, start, pos, len, eof);
+}
+
+static int
+fan_write_proc(struct file *file, const char *buf, unsigned long len, void *x)
+{
+        char *page;
+        int retval = -EINVAL;
+
+        //MOD_INC_USE_COUNT;
+
+        if (len > PAGE_SIZE) {
+                //MOD_DEC_USE_COUNT;
+                return -EOVERFLOW;
+        }
+
+        page = (char *)__get_free_page(GFP_KERNEL);
+        if (!page) {
+                //MOD_DEC_USE_COUNT;
+                return -ENOMEM;
+        }
+
+        if (copy_from_user(page, buf, len)) {
+                free_page((unsigned long)page);
+                //MOD_DEC_USE_COUNT;
+                return -EFAULT;
+        }
+        page[len] = '\0';
+
+        /* format: `fan ID COMMAND' */
+        if (len>5 && !strncmp("fan ", page, 4)) {
+                if (*(page+4) != '\0') {
+                        struct fan_info *finf;
+                        char *nextpg = NULL;
+
+                        spin_lock(&fan_lock);
+                        finf = fan_info_find(simple_strtoul(page+4,&nextpg,0));
+                        if (!finf) {
+                                retval = -ENOENT;
+                        } else if (nextpg != '\0') {
+                                if (!strncmp("on", nextpg+1, 2)) {
+                                        retval = fan_control(finf, 1);
+                                }
+                                else if (!strncmp("off", nextpg+1, 3)) {
+                                        retval = fan_control(finf, 0);
+                                }
+                        }
+                        spin_unlock(&fan_lock);
+                }
+        }
+
+        free_page((unsigned long)page);
+        //MOD_DEC_USE_COUNT;
+        
+        return (retval < 0) ? retval : len;
+}
+#endif /* CONFIG_PROC_FS */
+
+#if defined(CONFIG_COBALT_FANS_MODULE)
+module_init(cobalt_fan_init);
+module_exit(cobalt_fan_exit);
+
+MODULE_AUTHOR("Sun Cobalt");
+MODULE_DESCRIPTION("Sun Cobalt fan tachometers");
+#endif
+
+#endif /* CONFIG_COBALT_FANS || CONFIG_COBALT_FANS_MODULE */

drivers/cobalt/i2c.c

@@ +1 @@
+/*
+ * $Id: i2c.c,v 1.19 2002/09/17 23:41:29 sparker Exp $
+ * i2c.c : Cobalt I2C driver support
+ *
+ * Copyright (C) 2000 Cobalt Networks, Inc. 
+ * Copyright (C) 2001 Sun Microsystems, Inc. 
+ *
+ * Modified By: jeff@404ster.com
+ *
+ * This should be SMP safe.  All the exported functions lock on enter and
+ * unlock on exit.  These exported functions may be called at interupt time,
+ * so we have to use the IRQ safe locks.  NOTE: no function herein may call 
+ * any exported function herein. --TPH
+ */
+#include <stddef.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/config.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <asm/io.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/i2c.h>
+#include <cobalt/systype.h>
+
+#define I2C_3K_STATUS                   0x00
+#define I2C_3K_CMD                      0x01
+#define I2C_3K_START                    0x02
+#define I2C_3K_ADDR                     0x03
+#define I2C_3K_LOW_DATA                 0x04
+#define I2C_3K_HIGH_DATA                0x05
+#define I2C_3K_BLOCK_DATA               0x06
+#define I2C_3K_INDEX                    0x07
+#define I2C_3K_STATUS_IDLE              0x04
+#define I2C_3K_CMD_RW_BYTE              0x20
+#define I2C_3K_CMD_RW_WORD              0x30
+#define I2C_3K_CMD_RW_BLOCK             0xC0
+#define I2C_3K_CMD_RESET_PTR            0x80
+
+#define I2C_5K_HOST_STATUS              0x00
+#define I2C_5K_SLAVE_STATUS             0x01
+#define I2C_5K_HOST_CONTROL             0x02
+#define I2C_5K_HOST_COMMAND             0x03
+#define I2C_5K_HOST_ADDR                0x04
+#define I2C_5K_DATA_0                   0x05
+#define I2C_5K_DATA_1                   0x06
+#define I2C_5K_BLOCK_DATA               0x07
+#define I2C_5K_SLAVE_CONTROL            0x08
+#define I2C_5K_SHADOW_COMMAND           0x09
+#define I2C_5K_SLAVE_EVENT              0x0a
+#define I2C_5K_SLAVE_DATA               0x0c
+#define I2C_5K_HOST_STATUS_BUSY         0x01
+#define I2C_5K_HOST_CMD_START           0x40
+#define I2C_5K_HOST_CMD_QUICK_RW        (0 << 2)
+#define I2C_5K_HOST_CMD_BYTE_RW         (1 << 2)
+#define I2C_5K_HOST_CMD_BYTE_DATA_RW    (2 << 2)
+#define I2C_5K_HOST_CMD_WORD_DATA_RW    (3 << 2)
+#define I2C_5K_HOST_CMD_BLOCK_DATA_RW   (5 << 2)
+
+#define I2C_WRITE                       0
+#define I2C_READ                        1
+
+/* this delay was determined empirically */
+#define I2C_WRITE_UDELAY                1000
+
+struct cobalt_i2c_data {
+        const unsigned char status;
+        const unsigned char addr;
+        const unsigned char index;
+        const unsigned char data_low;
+        const unsigned char data_high;
+        const unsigned char data_block;
+        const unsigned char rw_byte;
+        const unsigned char rw_word;
+        const unsigned char rw_block;
+        unsigned int io_port;
+};
+
+struct cobalt_i2c_data cobalt_i2c_3k = {
+        I2C_3K_STATUS,
+        I2C_3K_ADDR,
+        I2C_3K_INDEX,
+        I2C_3K_LOW_DATA,
+        I2C_3K_HIGH_DATA,
+        I2C_3K_BLOCK_DATA,
+        I2C_3K_CMD_RW_BYTE,
+        I2C_3K_CMD_RW_WORD,
+        I2C_3K_CMD_RW_BLOCK,
+        0L
+};
+
+struct cobalt_i2c_data cobalt_i2c_5k = {
+        I2C_5K_HOST_STATUS,
+        I2C_5K_HOST_ADDR,
+        I2C_5K_HOST_COMMAND,
+        I2C_5K_DATA_0,
+        I2C_5K_DATA_1,
+        I2C_5K_BLOCK_DATA,
+        I2C_5K_HOST_CMD_BYTE_DATA_RW,
+        I2C_5K_HOST_CMD_WORD_DATA_RW,
+        I2C_5K_HOST_CMD_BLOCK_DATA_RW,
+        0L
+};
+
+/* a global pointer for our i2c data */
+struct cobalt_i2c_data *i2c_data;
+
+#define I2C_REG(r)                      (i2c_data->io_port + i2c_data->r)
+#define I2C_CMD(c)                      (i2c_data->c)
+
+#define I2C_LOCK        (1 << 0)
+#define I2C_DEAD        (1 << 1)
+static unsigned long i2c_state;
+
+static int initialized;
+
+static inline int 
+do_i2c_lock(void)
+{
+        int i = 0;
+
+        if (test_bit(I2C_DEAD, &i2c_state))
+                return -1;
+
+        while (test_and_set_bit(I2C_LOCK, &i2c_state)) {
+                if (i++ > 5)
+                        return -1;
+                udelay(10);
+        }
+        udelay(1);
+        return 0;
+}
+
+static inline void 
+do_i2c_unlock(void)
+{
+        clear_bit(I2C_LOCK, &i2c_state);
+}
+
+/* do a little squelching */
+#define NOISE_RATE (5*HZ)
+static int 
+i2c_noisy(void)
+{
+        static unsigned long last_time;
+        static unsigned int messages;
+
+        if ((long) (jiffies - last_time) > NOISE_RATE) {
+                last_time = jiffies;
+                if (messages) {
+                        WPRINTK("skipped %u kernel messages\n", messages);
+                        messages = 0;
+                }
+                return 0;
+        }
+        messages++;
+        return 1;
+}
+
+static int 
+i2c_wait_for_smi(void)
+{
+        static unsigned int shutup = 0;
+        int timeout=10;
+        int status;
+
+        while (timeout--) {
+                udelay(100); /* wait */
+                status = inb_p(I2C_REG(status));
+
+                if (cobt_is_3k()) {
+                        if (status & I2C_3K_STATUS_IDLE) {
+                                return 0;
+                        }
+                } else if (cobt_is_5k()) {
+                        if (!(status & I2C_5K_HOST_STATUS_BUSY)) {
+                                return 0;
+                        }
+                }
+                outb_p(status, I2C_REG(status));
+        }
+
+        /* still busy - complain */
+        if (!i2c_noisy()) {
+                if (++shutup > 2) {
+                        EPRINTK("i2c seems to be dead - sorry\n");
+                        set_bit(I2C_DEAD, &i2c_state);
+                } else {
+                        WPRINTK("i2c timeout: status busy (0x%x), resetting\n",
+                                status);
+                }
+        }
+
+        /* punch the abort bit */
+        if (cobt_is_3k()) {
+                outb_p(4, i2c_data->io_port + I2C_3K_CMD);
+        } else if (cobt_is_5k()) {
+                outb_p(2, i2c_data->io_port + I2C_5K_HOST_CONTROL);
+                outb_p(1, i2c_data->io_port + I2C_5K_HOST_CONTROL);
+        }
+
+        return -1;
+}
+
+static inline int 
+i2c_setup(const int dev, const int index, const int r)
+{
+        if (i2c_wait_for_smi() < 0)
+                return -1;
+
+        /* clear status */
+        outb_p(0xff, I2C_REG(status));
+
+        /* device address */
+        outb_p((dev|r) & 0xff, I2C_REG(addr));
+
+        /* I2C index */
+        outb_p(index & 0xff, I2C_REG(index));
+
+        return 0;
+}
+        
+static inline int 
+i2c_cmd(const unsigned char command)
+{
+        if (cobt_is_3k()) {
+                outb_p(command, i2c_data->io_port + I2C_3K_CMD); 
+                outb_p(0xff, i2c_data->io_port + I2C_3K_START);
+        } else if (cobt_is_5k()) {
+                outb_p(I2C_5K_HOST_CMD_START | command,
+                        i2c_data->io_port + I2C_5K_HOST_CONTROL);
+        }
+
+        if (i2c_wait_for_smi() < 0)
+                return -1;
+
+        return 0;
+}
+
+int 
+cobalt_i2c_init(void)
+{
+        struct pci_dev *i2cdev = NULL;
+
+        if( ! initialized ) {
+                if (cobt_is_3k()) {
+                        i2c_data = &cobalt_i2c_3k;
+                        i2cdev = pci_find_device(PCI_VENDOR_ID_AL, 
+                                PCI_DEVICE_ID_AL_M7101, NULL);
+                        if (!i2cdev) {
+                                EPRINTK("can't find PMU for i2c access\n");
+                                return -1;
+                        }
+                        pci_read_config_dword(i2cdev, 0x14, &i2c_data->io_port);
+                } else if (cobt_is_5k()) {
+                        i2c_data = &cobalt_i2c_5k;
+                        i2cdev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
+                                PCI_DEVICE_ID_SERVERWORKS_OSB4, i2cdev);
+                        if (!i2cdev) {
+                            i2cdev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
+                            PCI_DEVICE_ID_SERVERWORKS_CSB5, i2cdev);
+                            if (!i2cdev) {
+                                EPRINTK("can't find OSB4 or CSB5 for i2c access\n");
+                                return -1;
+                            }
+                        }
+                        pci_read_config_dword(i2cdev, 0x90, &i2c_data->io_port);
+                }
+
+                i2c_data->io_port &= 0xfff0;
+                if (!i2c_data->io_port) {
+                        EPRINTK("i2c IO port not found\n");
+                }
+                initialized = 1;
+        }
+
+        return 0;
+}
+
+int 
+cobalt_i2c_reset(void)
+{
+        int r;
+
+        if( !initialized ) {
+                if( cobalt_i2c_init() < 0 )
+                        return -1;
+        }
+
+        if (do_i2c_lock() < 0)
+                return -1;
+
+        if (cobt_is_3k()) {
+                /* clear status */
+                outb_p(0xff, i2c_data->io_port + I2C_3K_STATUS);
+                /* reset SMB devs */
+                outb_p(0x08, i2c_data->io_port + I2C_3K_CMD);
+                /* start command */
+                outb_p(0xff, i2c_data->io_port + I2C_3K_START);
+        } else if (cobt_is_5k()) {
+                /* clear status */
+                outb_p(0x2, i2c_data->io_port + I2C_5K_HOST_CONTROL);
+                outb_p(0x1, i2c_data->io_port + I2C_5K_HOST_CONTROL);
+                outb_p(0xff, i2c_data->io_port + I2C_5K_HOST_STATUS);
+                outb_p(I2C_5K_HOST_CMD_START | 0x08, 
+                        i2c_data->io_port + I2C_5K_HOST_CONTROL);
+        }
+
+        r = i2c_wait_for_smi();
+
+        do_i2c_unlock();
+
+        return r;
+}
+
+int 
+cobalt_i2c_read_byte(const int dev, const int index)
+{
+        int val = 0;
+
+        if( !initialized ) {
+                if( cobalt_i2c_init() < 0 )
+                        return -1;
+        }
+
+        if (do_i2c_lock() < 0)
+                return -1;
+
+        if (i2c_setup(dev, index, I2C_READ) < 0 
+         || i2c_cmd(I2C_CMD(rw_byte)) < 0) {
+                val = -1;
+        }
+
+        if (val == 0) {
+                val = inb_p(I2C_REG(data_low));
+        }
+
+        do_i2c_unlock();
+
+        return val;
+}
+
+int 
+cobalt_i2c_read_word(const int dev, const int index)
+{
+        int val = 0;
+
+        if( !initialized ) {
+                if( cobalt_i2c_init() < 0 )
+                        return -1;
+        }
+
+        if (do_i2c_lock() < 0)
+                return -1;
+        
+        if (i2c_setup(dev, index, I2C_READ) < 0 
+         || i2c_cmd(I2C_CMD(rw_word)) < 0) {
+                val = -1;
+        }
+
+        if (val == 0) {
+                val = inb_p(I2C_REG(data_low));
+                val += inb_p(I2C_REG(data_high)) << 8;
+        }
+
+        do_i2c_unlock();
+
+        return val;
+}
+
+int 
+cobalt_i2c_read_block(const int dev, const int index, 
+        unsigned char *data, int count)
+{
+        if( !initialized ) {
+                if( cobalt_i2c_init() < 0 )
+                        return -1;
+        }
+
+        if (do_i2c_lock() < 0)
+                return -1;
+        
+        if (i2c_setup(dev, index, I2C_READ) < 0) { 
+                do_i2c_unlock();
+                return -1;
+        }
+
+        outb_p(count & 0xff, I2C_REG(data_low));
+        outb_p(count & 0xff, I2C_REG(data_high));
+
+        if (i2c_cmd(I2C_CMD(rw_block)) < 0) {
+                do_i2c_unlock();
+                return -1;
+        }
+
+        while (count) {
+                /* read a byte of block data */
+                *data = inb_p(I2C_REG(data_block));
+                data++;
+                count--;
+        }
+
+        do_i2c_unlock();
+
+        return 0;       
+}
+
+int 
+cobalt_i2c_write_byte(const int dev, const int index, const u8 val)
+{
+        int r = 0;
+
+        if( !initialized ) {
+                if( cobalt_i2c_init() < 0 )
+                        return -1;
+        }
+
+        if (do_i2c_lock() < 0)
+                return -1;
+
+        if (i2c_setup(dev, index, I2C_WRITE) < 0) {
+                r = -1;
+        }
+
+        if (r == 0) {
+                outb_p(val & 0xff, I2C_REG(data_low));
+
+                if (i2c_cmd(I2C_CMD(rw_byte)) < 0) {
+                        r = -1;
+                }
+        }
+
+        udelay(I2C_WRITE_UDELAY);
+
+        do_i2c_unlock();
+
+        return r;       
+}
+
+int 
+cobalt_i2c_write_word(const int dev, const int index, const u16 val)
+{
+        int r = 0;
+
+        if( !initialized ) {
+                if( cobalt_i2c_init() < 0 )
+                        return -1;
+        }
+
+        if (do_i2c_lock() < 0)
+                return -1;
+
+        if (i2c_setup(dev, index, I2C_WRITE) < 0) {
+                r = -1;
+        }
+
+        if (r == 0) {
+                outb_p(val & 0xff, I2C_REG(data_low));
+                outb_p((val >> 8) & 0xff, I2C_REG(data_high));
+
+                if (i2c_cmd(I2C_CMD(rw_word)) < 0) {
+                        r = -1;
+                }
+        }
+        
+        udelay(I2C_WRITE_UDELAY);
+
+        do_i2c_unlock();
+
+        return r;       
+}
+
+int 
+cobalt_i2c_write_block(int dev, int index, unsigned char *data, int count)
+{
+        if( !initialized ) {
+                if( cobalt_i2c_init() < 0 )
+                        return -1;
+        }
+
+        if (do_i2c_lock() < 0)
+                return -1;
+
+        if (i2c_setup(dev, index, I2C_WRITE) < 0) {
+                do_i2c_unlock();
+                return -1;
+        }
+
+        outb_p(count & 0xff, I2C_REG(data_low));
+        outb_p(count & 0xff, I2C_REG(data_high));
+
+        if (i2c_cmd(I2C_CMD(rw_block)) < 0) {
+                do_i2c_unlock();
+                return -1;
+        }
+
+        while (count) {
+                /* write a byte of block data */
+                outb_p(*data, I2C_REG(data_block));
+                data++;
+                count--;
+        }
+
+        udelay(I2C_WRITE_UDELAY);
+
+        do_i2c_unlock();
+
+        return 0;       
+}
+
+EXPORT_SYMBOL(cobalt_i2c_reset);
+EXPORT_SYMBOL(cobalt_i2c_read_byte);
+EXPORT_SYMBOL(cobalt_i2c_read_word);
+EXPORT_SYMBOL(cobalt_i2c_read_block);
+EXPORT_SYMBOL(cobalt_i2c_write_byte);
+EXPORT_SYMBOL(cobalt_i2c_write_word);
+EXPORT_SYMBOL(cobalt_i2c_write_block);

drivers/cobalt/init.c

@@ +1 @@
+/* $Id: init.c,v 1.22 2002/11/04 17:54:15 thockin Exp $ */
+/*
+ *   Copyright (c) 2001  Sun Microsystems
+ *   Generic initialization, to reduce pollution of other files
+ */
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/stddef.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <cobalt/cobalt.h>
+
+static int cobalt_proc_init(void);
+extern int cobalt_i2c_init(void);
+extern int cobalt_net_init(void);
+extern int cobalt_systype_init(void);
+extern void cobalt_boardrev_init(void);
+extern int cobalt_led_init(void);
+extern int cobalt_lcd_init(void);
+extern int cobalt_serialnum_init(void);
+extern int cobalt_wdt_init(void);
+extern int cobalt_sensors_init(void);
+extern int cobalt_fan_init(void);
+extern int cobalt_acpi_init(void);
+extern int cobalt_ruler_init(void);
+extern int cobalt_raminfo_init(void);
+
+#ifdef CONFIG_PROC_FS
+struct proc_dir_entry *proc_cobalt;
+EXPORT_SYMBOL(proc_cobalt);
+#endif
+spinlock_t cobalt_superio_lock = SPIN_LOCK_UNLOCKED;
+
+/* initialize all the cobalt specific stuff */
+int __init
+cobalt_init(void)
+{
+    cobalt_proc_init();
+    cobalt_systype_init();
+#ifdef CONFIG_COBALT_RAQ
+    /* we might keep the boardrev on an i2c chip */
+    cobalt_i2c_init();
+#endif
+    cobalt_boardrev_init();
+#ifdef CONFIG_COBALT_ACPI
+    cobalt_acpi_init();
+#endif
+#ifdef CONFIG_COBALT_LED
+    cobalt_net_init();
+    cobalt_led_init();
+#endif
+#ifdef CONFIG_COBALT_LCD
+    cobalt_lcd_init();
+#endif
+#ifdef CONFIG_COBALT_RULER
+    cobalt_ruler_init();
+#endif
+#ifdef CONFIG_COBALT_SERNUM
+    cobalt_serialnum_init();
+#endif
+#ifdef CONFIG_COBALT_RAQ
+    /* some systems use WDT it for reboot */
+    cobalt_wdt_init();
+#endif
+#ifdef CONFIG_COBALT_SENSORS
+    cobalt_sensors_init();
+#endif
+#ifdef CONFIG_COBALT_FANS
+    cobalt_fan_init();
+#endif
+#ifdef CONFIG_COBALT_RAMINFO
+    cobalt_raminfo_init();
+#endif
+    return 0;
+}
+
+static int __init
+cobalt_proc_init(void)
+{
+#ifdef CONFIG_PROC_FS
+        proc_cobalt = proc_mkdir("cobalt", 0);
+        if (!proc_cobalt) {
+                EPRINTK("can't create /proc/cobalt\n");
+                return -1;
+        }
+#endif
+
+        return 0;
+}
+
+/* a function that handles the blah stuff in a simple proc read function */
+int
+cobalt_gen_proc_read(char *buf, int plen, char **start, off_t pos, 
+        int len, int *eof)
+{
+        /* trying to read a bad offset? */
+        if (pos >= plen) {
+                *eof = 1;
+                return 0;
+        }
+
+        /* did we write everything we wanted to? */
+        if (len >= (plen-pos)) {
+                *eof = 1;
+        }
+
+        *start = buf + pos;
+        plen -= pos;
+
+        return (len > plen) ? plen : len;
+}
+EXPORT_SYMBOL(cobalt_gen_proc_read);

drivers/cobalt/lcd.c

@@ +1 @@
+/*
+ * $Id: lcd.c,v 1.44 2002/05/10 18:44:45 duncan Exp $
+ * lcd.c : driver for Cobalt LCD/Buttons
+ *
+ * Copyright 1996-2000 Cobalt Networks, Inc.
+ * Copyright 2001 Sun Microsystems, Inc.
+ *
+ * By:  Andrew Bose
+ *      Timothy Stonis
+ *      Tim Hockin
+ *      Adrian Sun
+ *      Duncan Laurie
+ *
+ * Modified By: jeff@404ster.com
+ *
+ * This should be SMP safe. We're hardly performance critical,
+ * so we lock around lcd_ioctl() and just where needed by other external
+ * functions.  There is a static global waiters variable that is atomic_t, and
+ * so should be safe. --TPH
+ */
+
+#include <linux/config.h>
+
+#ifdef CONFIG_COBALT_LCD
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/miscdevice.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/netdevice.h>
+#include <linux/proc_fs.h>
+#include <linux/in6.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/kernel.h>
+
+#include <asm/io.h>
+#include <asm/segment.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/checksum.h>
+#include <linux/delay.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+#include <cobalt/lcd.h>
+#include <cobalt/superio.h>
+#include <cobalt/i2c.h>
+
+#define TWIDDLE_HZ (HZ/10)
+
+#ifndef min
+#define min(a, b)  ((a) < (b) ? (a) : (b))
+#endif
+
+#define LCD_DRIVER              "Cobalt Networks LCD driver"
+#define LCD_DRIVER_VMAJ         4
+#define LCD_DRIVER_VMIN         0
+
+/* io registers */
+#define LPT                     0x0378
+#define LCD_DATA_ADDRESS        LPT+0
+#define LCD_CONTROL_ADDRESS     LPT+2
+
+/* LCD device info */
+#define LCD_Addr                0x80
+#define DD_R00                  0x00
+#define DD_R01                  0x27
+#define DD_R10                  0x40
+#define DD_R11                  0x67
+
+/* driver functions */
+static int cobalt_lcd_open(struct inode *, struct file *);
+static ssize_t cobalt_lcd_read(struct file *, char *, size_t, loff_t *);
+static int cobalt_lcd_read_proc(char *, char **, off_t, int, int *, void *);
+static char *cobalt_lcddev_read_line(int, char *);
+static int cobalt_lcd_ioctl(struct inode *, struct file *,
+        unsigned int, unsigned long);
+static int cobalt_lcd_panic(struct notifier_block *self, unsigned long, void *);
+
+/* globals used throughout */
+#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_COBALT_OLDPROC
+static struct proc_dir_entry *proc_lcd;
+#endif
+static struct proc_dir_entry *proc_clcd;
+#endif
+static int lcd_present;
+static int has_i2c_lcd;
+static spinlock_t lcd_lock = SPIN_LOCK_UNLOCKED;
+
+/* various file operations we support for this driver */
+static struct file_operations lcd_fops = {
+        .read = cobalt_lcd_read,
+        .ioctl = cobalt_lcd_ioctl,
+        .open = cobalt_lcd_open,
+};
+
+/* device structure */
+static struct miscdevice lcd_dev = {
+        MISC_DYNAMIC_MINOR,
+        "lcd",
+        &lcd_fops
+};
+
+static int disable_lcd;
+static int __init 
+lcd_disable_setup(char *str)
+{
+        disable_lcd = 1;
+        return 0;
+}
+__setup("nolcd", lcd_disable_setup);
+
+/* Read a control instruction from the LCD */
+static inline int 
+lcddev_read_inst(void)
+{
+        int a = 0;
+
+        if (cobt_is_5k() && has_i2c_lcd) {
+                a = cobalt_i2c_read_byte(
+                        COBALT_I2C_DEV_LCD_INST | COBALT_I2C_READ, 0);
+        } else if (cobt_is_3k() || (cobt_is_5k() && !has_i2c_lcd)) {
+                outb(0x21, LCD_CONTROL_ADDRESS); /* RS=0, R/W=1, E=0 */
+                outb(0x20, LCD_CONTROL_ADDRESS); /* RS=0, R/W=1, E=1 */
+                a = inb(LCD_DATA_ADDRESS);
+                outb(0x21, LCD_CONTROL_ADDRESS); /* RS=0, R/W=1, E=0 */
+                outb(0x01, LCD_CONTROL_ADDRESS); /* RS=0, R/W=1, E=0 */
+        } 
+
+        /* small delay */
+        udelay(100);
+
+        return a;
+}
+
+#define LCD_MAX_POLL 10000
+static inline void 
+lcddev_poll_wait(void) 
+{
+        int i=0;
+
+        while (i++ < LCD_MAX_POLL) {
+                int r = lcddev_read_inst();
+                if (r < 0 || !(r & 0x80))
+                        break;
+        }
+}
+
+/* Write a control instruction to the LCD */
+static inline void 
+lcddev_write_inst(unsigned char data)
+{
+        lcddev_poll_wait();
+
+        if (cobt_is_5k() && has_i2c_lcd) {
+                cobalt_i2c_write_byte(
+                        COBALT_I2C_DEV_LCD_INST | COBALT_I2C_WRITE, 0, data);
+        } else if (cobt_is_3k() || (cobt_is_5k() && !has_i2c_lcd)) {
+                outb(0x03, LCD_CONTROL_ADDRESS); /* RS=0, R/W=0, E=0 */
+                outb(data, LCD_DATA_ADDRESS);
+                outb(0x02, LCD_CONTROL_ADDRESS); /* RS=0, R/W=0, E=1 */
+                outb(0x03, LCD_CONTROL_ADDRESS); /* RS=0, R/W=0, E=0 */
+                outb(0x01, LCD_CONTROL_ADDRESS); /* RS=0, R/W=1, E=0 */
+        }
+
+        /* small delay */
+        udelay(100);
+}
+
+/* Write one byte of data to the LCD */
+static inline void 
+lcddev_write_data(unsigned char data)
+{
+        lcddev_poll_wait();
+
+        if (cobt_is_5k() && has_i2c_lcd) {
+                cobalt_i2c_write_byte(
+                        COBALT_I2C_DEV_LCD_DATA | COBALT_I2C_WRITE, 0, data);
+        } else if (cobt_is_3k() || (cobt_is_5k() && !has_i2c_lcd)) {
+                outb(0x07, LCD_CONTROL_ADDRESS); /* RS=1, R/W=0, E=0 */
+                outb(data, LCD_DATA_ADDRESS);
+                outb(0x06, LCD_CONTROL_ADDRESS); /* RS=1, R/W=0, E=1 */
+                outb(0x07, LCD_CONTROL_ADDRESS); /* RS=1, R/W=0, E=0 */
+                outb(0x05, LCD_CONTROL_ADDRESS); /* RS=1, R/W=1, E=0 */
+        }
+        /* small delay */
+        udelay(100);
+}
+
+/* Read one byte of data from the LCD */
+static inline unsigned char 
+lcddev_read_data(void)
+{
+        unsigned char a = 0;
+
+        lcddev_poll_wait();
+
+        if (cobt_is_5k() && has_i2c_lcd) {
+                a = cobalt_i2c_read_byte(
+                        COBALT_I2C_DEV_LCD_DATA | COBALT_I2C_READ, 0);
+        } else if (cobt_is_3k() || (cobt_is_5k() && !has_i2c_lcd)) {
+                outb(0x25, LCD_CONTROL_ADDRESS); /* RS=1, R/W=1, E=0 */
+                outb(0x24, LCD_CONTROL_ADDRESS); /* RS=1, R/W=1, E=1 */
+                a = inb(LCD_DATA_ADDRESS);
+                outb(0x25, LCD_CONTROL_ADDRESS); /* RS=1, R/W=1, E=0 */
+                outb(0x01, LCD_CONTROL_ADDRESS); /* RS=1, R/W=1, E=0 */
+        }
+
+        /* small delay */
+        udelay(100);
+
+        return a;
+}
+
+static inline void
+lcddev_init(void)
+{
+        lcddev_write_inst(0x38);
+        lcddev_write_inst(0x38);
+        lcddev_write_inst(0x38);
+        lcddev_write_inst(0x06);
+        lcddev_write_inst(0x0c);
+}
+
+static inline char 
+read_buttons(void)
+{
+        char r = 0;
+
+        if (cobt_is_5k() && has_i2c_lcd) {
+                unsigned char inst;
+                inst = cobalt_i2c_read_byte(COBALT_I2C_DEV_FP_BUTTONS, 0);
+                switch (inst) {
+                        case 0x3e: r = BUTTON_Next_B; break;
+                        case 0x3d: r = BUTTON_Enter_B; break;
+                        case 0x1f: r = BUTTON_Left_B; break;
+                        case 0x3b: r = BUTTON_Right_B; break;
+                        case 0x2f: r = BUTTON_Up_B; break;
+                        case 0x37: r = BUTTON_Down_B; break;
+                        case 0x3f: 
+                        default: r = BUTTON_NONE_B;
+                }
+        } else if (cobt_is_3k() || (cobt_is_5k() && !has_i2c_lcd)) {
+                outb(0x29, LCD_CONTROL_ADDRESS); /* Sel=0, Bi=1 */
+                r = inb(LCD_DATA_ADDRESS) & BUTTON_MASK;
+        }
+        
+        return r;
+}
+
+static inline int 
+button_pressed(void)
+{
+        unsigned char b;
+        unsigned long flags;
+
+        spin_lock_irqsave(&lcd_lock, flags);
+        b = read_buttons();
+        spin_unlock_irqrestore(&lcd_lock, flags);
+
+        switch (b) {
+        case BUTTON_Next:
+        case BUTTON_Next_B:
+        case BUTTON_Reset_B:
+                return b;
+        default:
+            break;
+        }
+
+        return 0;
+}
+
+/* this could be protected by CAP_RAW_IO here, or by the FS permissions */
+static int 
+cobalt_lcd_ioctl(struct inode *inode, struct file *file,
+        unsigned int cmd, unsigned long arg)
+{
+        struct lcd_display button_display, display;
+        unsigned long address, a;
+        int index;
+        int dlen = sizeof(struct lcd_display);
+        int r = 0;
+        unsigned long flags;
+
+#ifdef CONFIG_COBALT_LCD_TWIDDLE
+        cobalt_lcd_stop_twiddle();
+#endif  
+        switch (cmd) {
+        /* Turn the LCD on */
+        case LCD_On:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x0F);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;          
+
+        /* Turn the LCD off */
+        case LCD_Off:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x08);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Reset the LCD */
+        case LCD_Reset:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x3F);
+                lcddev_write_inst(0x3F);
+                lcddev_write_inst(0x3F);
+                lcddev_write_inst(0x3F);
+                lcddev_write_inst(0x01);
+                lcddev_write_inst(0x06);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Clear the LCD */
+        case LCD_Clear:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x01);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Move the cursor one position to the left */
+        case LCD_Cursor_Left:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x10);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Move the cursor one position to the right */
+        case LCD_Cursor_Right:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x14);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;  
+
+        /* Turn the cursor off */
+        case LCD_Cursor_Off:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x0C);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Turn the cursor on */
+        case LCD_Cursor_On:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x0F);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Turn blinking off? I don't know what this does - TJS */
+        case LCD_Blink_Off:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x0E);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Get the current cursor position */
+        case LCD_Get_Cursor_Pos:
+                spin_lock_irqsave(&lcd_lock, flags);
+                display.cursor_address = (unsigned char)lcddev_read_inst();
+                display.cursor_address = display.cursor_address & 0x07F;
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                if (copy_to_user((struct lcd_display *)arg, &display, dlen)) {
+                        r = -EFAULT;
+                }
+                break;
+
+        /* Set the cursor position */
+        case LCD_Set_Cursor_Pos:
+                if (copy_from_user(&display, (struct lcd_display *)arg, dlen)) {
+                        r = -EFAULT;
+                        break;
+                }
+                a = display.cursor_address | LCD_Addr;
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(a);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Get the value at the current cursor position? - TJS */
+        case LCD_Get_Cursor:
+                spin_lock_irqsave(&lcd_lock, flags);
+                display.character = lcddev_read_data();
+                lcddev_write_inst(0x10);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                if (copy_to_user((struct lcd_display *)arg, &display, dlen)) {
+                        r = -EFAULT;
+                }
+                break;
+
+        /* Set the character at the cursor position? - TJS */
+        case LCD_Set_Cursor:
+                if (copy_from_user(&display, (struct lcd_display *)arg, dlen)) {
+                        r = -EFAULT;
+                        break;
+                }
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_data(display.character);
+                lcddev_write_inst(0x10);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Dunno what this does - TJS */ 
+        case LCD_Disp_Left:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x18);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Dunno what this does - TJS */ 
+        case LCD_Disp_Right:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x1C);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Dunno what this does - TJS */ 
+        case LCD_Home:
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(0x02);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        /* Write a string to the LCD */
+        case LCD_Write:
+                if (copy_from_user(&display, (struct lcd_display *)arg, dlen)) {
+                        r = -EFAULT;
+                        break;
+                }
+
+                spin_lock_irqsave(&lcd_lock, flags);
+
+                display.size1 = display.size1 > 0 ? 
+                  min(display.size1, (int) sizeof(display.line1)) : 0;
+                display.size2 = display.size2 > 0 ? 
+                  min(display.size2, (int) sizeof(display.line2)) : 0;
+
+                /* First line */
+                lcddev_write_inst(0x80);
+                for (index = 0; index < display.size1; index++)
+                        lcddev_write_data(display.line1[index]);
+                for (index = display.size1; index < sizeof(display.line1); index++)
+                        lcddev_write_data(' ');
+
+                /* Second line */
+                lcddev_write_inst(0xC0);        
+                for (index = 0; index < display.size2; index++)
+                        lcddev_write_data(display.line2[index]);
+                for (index = display.size2; index < sizeof(display.line2); index++)
+                        lcddev_write_data(' ');
+
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;  
+
+        /* Read what's on the LCD */
+        case LCD_Read:
+                spin_lock_irqsave(&lcd_lock, flags);
+
+                for (address = DD_R00; address <= DD_R01; address++) {
+                        lcddev_write_inst(address | LCD_Addr);
+                        display.line1[address] = lcddev_read_data();
+                }
+                for (address = DD_R10; address <= DD_R11; address++) {
+                        lcddev_write_inst(address | LCD_Addr);
+                        display.line2[address - DD_R10] = lcddev_read_data();
+                }
+
+                spin_unlock_irqrestore(&lcd_lock, flags);
+
+                display.line1[DD_R01] = '\0';
+                display.line2[DD_R01] = '\0';
+
+                if (copy_to_user((struct lcd_display *)arg, &display, dlen)) {
+                        r = -EFAULT;
+                }
+                break;
+
+        case LCD_Raw_Inst:
+                if (copy_from_user(&display, (struct lcd_display *)arg, dlen)) {
+                        r = -EFAULT;
+                        break;
+                }
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_inst(display.character);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        case LCD_Raw_Data:
+                if (copy_from_user(&display, (struct lcd_display *)arg, dlen)) {
+                        r = -EFAULT;
+                        break;
+                }
+                spin_lock_irqsave(&lcd_lock, flags);
+                lcddev_write_data(display.character);
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                break;
+
+        case LCD_Type:
+                if (cobt_is_5k() && has_i2c_lcd) {
+                        if (put_user(LCD_TYPE_I2C, (int *)arg)) {
+                                r = -EFAULT;
+                        }
+                } else if (cobt_is_3k() || (cobt_is_5k() && !has_i2c_lcd)) {
+                        if (put_user(LCD_TYPE_PARALLEL_B, (int *)arg)) {
+                                r = -EFAULT;
+                        }
+                }
+                break;
+                
+        /* Read the buttons */
+        case BUTTON_Read:
+                spin_lock_irqsave(&lcd_lock, flags);
+                button_display.buttons = read_buttons();
+                spin_unlock_irqrestore(&lcd_lock, flags);
+                if (copy_to_user((struct lcd_display *)arg, 
+                                &button_display, dlen)) {
+                        r = -EFAULT;
+                }
+                break;
+        
+#ifdef CONFIG_COBALT_LED
+        /* a slightly different api that allows you to set 32 leds */
+        case LED32_Set:
+                cobalt_led_set_lazy(arg);
+                break;
+
+        case LED32_Bit_Set:
+                cobalt_led_set_bits_lazy(arg);
+                break;
+
+        case LED32_Bit_Clear:
+                cobalt_led_clear_bits_lazy(arg);
+                break;
+
+        case LED32_Get:
+                *(unsigned int *)arg = cobalt_led_get();
+                break;
+
+        /* set all the leds */
+        case LED_Set:
+                if (copy_from_user(&display, (struct lcd_display *)arg, dlen)) {
+                        r = -EFAULT;
+                        break;
+                }
+                cobalt_led_set_lazy(display.leds);
+                break;
+
+        /* set a single led */
+        case LED_Bit_Set:
+                if (copy_from_user(&display, (struct lcd_display *)arg, dlen)) {
+                        r = -EFAULT;
+                        break;
+                }
+                cobalt_led_set_bits_lazy(display.leds);
+                break;
+
+        /* clear an led */
+        case LED_Bit_Clear:
+                if (copy_from_user(&display, (struct lcd_display *)arg, dlen)) {
+                        r = -EFAULT;
+                        break;
+                }
+                cobalt_led_clear_bits_lazy(display.leds);
+                break;
+#endif
+
+        default:
+            break;
+        }
+
+        return r;
+}
+
+static int 
+cobalt_lcd_open(struct inode *inode, struct file *file)
+{
+        if (!lcd_present) {
+                return -ENXIO;
+        } else {
+                return 0;
+        }
+}
+
+/* LCD daemon sits on this, we wake it up once a key is pressed */
+static ssize_t 
+cobalt_lcd_read(struct file *file, char *buf, size_t count, loff_t *ppos)
+{
+        int bnow;
+        static unsigned long lcd_waiters;
+
+        if (test_and_set_bit(0, &lcd_waiters)) {
+                return -EINVAL;
+        }
+
+        while (((bnow = button_pressed()) == 0) && !(signal_pending(current))) {
+                if (file->f_flags & O_NONBLOCK) {
+                        lcd_waiters = 0;
+                        return -EAGAIN;
+                }
+                set_current_state(TASK_INTERRUPTIBLE);
+                schedule_timeout(2 * HZ);
+        }
+        lcd_waiters = 0;
+
+        if (signal_pending(current)) {
+                return -ERESTARTSYS;
+        }
+
+        return bnow;
+}
+
+/* read a single line from the LCD into a string */
+static char *
+cobalt_lcddev_read_line(int lineno, char *line)
+{
+        unsigned long addr, min, max;
+        unsigned long flags;
+        
+        switch (lineno) {
+        case 0:
+                min = DD_R00;
+                max = DD_R01;
+                break;
+        case 1:
+                min = DD_R10;
+                max = DD_R11;
+                break;
+        default:
+                min = 1;
+                max = 0;
+        }
+
+        spin_lock_irqsave(&lcd_lock, flags);
+        for (addr = min; addr <= max; addr++) {
+                lcddev_write_inst(addr | LCD_Addr);
+                udelay(150);
+                line[addr-min] = lcddev_read_data();
+                udelay(150);
+        }
+        spin_unlock_irqrestore(&lcd_lock, flags);
+        line[addr-min] = '\0';
+
+        return line;
+}
+
+#ifdef CONFIG_PROC_FS
+static int 
+cobalt_lcd_read_proc(char *buf, char **start, off_t pos,
+                                int len, int *eof, void *private)
+{
+        int plen = 0;
+        char line[COBALT_LCD_LINELEN+1];
+
+        /* first line */
+        cobalt_lcddev_read_line(0, line);
+        plen += sprintf(buf+plen, "%s\n", line);
+
+        /* second line */
+        cobalt_lcddev_read_line(1, line);
+        plen += sprintf(buf+plen, "%s\n", line);
+        
+        return cobalt_gen_proc_read(buf, plen, start, pos, len, eof);
+}
+#endif
+
+static char *lcd_panic_str1 = "Kernel";
+static char *lcd_panic_str2 = "Panic!";
+
+static int cobalt_lcd_panic(struct notifier_block *self, unsigned long a, void *b)
+{
+    int i;
+    int len;
+    
+    if( !lcd_present )
+        return 0;
+    
+#ifdef CONFIG_COBALT_LCD_TWIDDLE
+    cobalt_lcd_stop_twiddle();
+#endif
+
+    lcddev_write_inst( (DD_R00) | LCD_Addr);
+    len = strlen( lcd_panic_str1 );
+    for( i=0 ; i<16 ; i++ )
+        lcddev_write_data( (i<len)?lcd_panic_str1[i]:' ' );
+
+    lcddev_write_inst( (DD_R10) | LCD_Addr);
+    len = strlen( lcd_panic_str2 );
+    for( i=0 ; i<16 ; i++ )
+        lcddev_write_data( (i<len)?lcd_panic_str2[i]:' ' );
+
+    return 0;
+}
+
+#ifdef CONFIG_COBALT_LCD_TWIDDLE
+static struct timer_list twiddle_timer;
+static int twiddling;
+static void 
+twiddle_timer_func(unsigned long data)
+{
+        static int state=1;
+        static int pos=0;
+        unsigned long flags;
+
+        spin_lock_irqsave(&lcd_lock, flags);
+
+        lcddev_write_inst((DD_R10+4+pos) | LCD_Addr);
+        lcddev_write_data(' ');
+
+        pos += state;
+        if (pos < 0) {
+                state = 1; 
+                pos = 1;
+        }
+        if (pos > 11) {
+                state = -1; 
+                pos = 10;
+        }
+
+        lcddev_write_inst((DD_R10+4+pos) | LCD_Addr);
+        lcddev_write_data(0xff);
+
+        spin_unlock_irqrestore(&lcd_lock, flags);
+
+        mod_timer(&twiddle_timer, jiffies + TWIDDLE_HZ);
+}
+
+void 
+cobalt_lcd_start_twiddle(void)
+{
+    init_timer(&twiddle_timer);
+        twiddle_timer.expires = jiffies + TWIDDLE_HZ;
+        twiddle_timer.data = 0;
+        twiddle_timer.function = &twiddle_timer_func;
+        add_timer(&twiddle_timer); 
+        twiddling=1; 
+}
+
+void 
+cobalt_lcd_stop_twiddle(void)
+{
+        unsigned long flags;
+    
+    spin_lock_irqsave(&lcd_lock, flags);
+        if (twiddling) {
+                del_timer_sync(&twiddle_timer);
+                twiddling = 0;
+        }
+        spin_unlock_irqrestore(&lcd_lock, flags);
+}
+#endif /* CONFIG_COBALT_LCD_TWIDDLE */
+
+/* stop the lcd */
+void cobalt_lcd_off(void)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&lcd_lock, flags);
+        lcddev_write_inst(0x01); /* clear */
+        lcddev_write_inst(0x08); /* off */
+        spin_unlock_irqrestore(&lcd_lock, flags);
+}
+
+static int initialized;
+static struct notifier_block lcd_nb;
+
+int __init 
+cobalt_lcd_init(void)
+{       
+    int retval;
+    
+        if (initialized)
+                return 0;
+
+        initialized=1;
+    printk(KERN_INFO "%s %d.%d (modified by jeff@404ster.com)\n", LCD_DRIVER,LCD_DRIVER_VMAJ,LCD_DRIVER_VMIN);
+    
+        if (disable_lcd) {
+                printk(KERN_INFO "%s DISABLED\n", LCD_DRIVER);
+                return 0;
+        }
+
+    retval = misc_register(&lcd_dev);
+        
+        if (cobt_is_monterey() 
+         && (cobalt_i2c_read_byte(COBALT_I2C_DEV_LCD_INST, 0) != 0xff)) {
+            printk(KERN_INFO "  - LCD is an I2C device\n");
+                has_i2c_lcd = 1;
+        } else {
+                has_i2c_lcd = 0;
+        }
+
+        /* flag ourselves as present */
+        lcd_present = 1;
+
+        /* initialize the device */
+        lcddev_init();
+
+#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_COBALT_OLDPROC
+        /* create /proc/lcd */
+        proc_lcd = create_proc_read_entry("lcd", S_IRUSR, NULL, 
+                cobalt_lcd_read_proc, NULL);
+        if (!proc_lcd) {
+                EPRINTK("can't create /proc/lcd\n");
+        }
+#endif
+    proc_clcd = create_proc_read_entry("lcd", S_IRUSR, proc_cobalt, 
+                cobalt_lcd_read_proc, NULL);
+        if (!proc_clcd) {
+                EPRINTK("can't create /proc/cobalt/lcd\n");
+        }
+#endif
+
+#ifdef CONFIG_COBALT_LCD_TWIDDLE
+        cobalt_lcd_start_twiddle();
+#endif
+
+            /* register panic notifier */
+        lcd_nb.notifier_call = cobalt_lcd_panic;
+        lcd_nb.next = NULL;
+        lcd_nb.priority = 0;
+        
+        atomic_notifier_chain_register( &panic_notifier_list, &lcd_nb );
+
+        return 0;
+}
+
+#endif /* CONFIG_COBALT_LCD */

drivers/cobalt/led.c

@@ +1 @@
+ /*
+ * $Id: led.c,v 1.36 2002/05/10 18:44:45 duncan Exp $
+ * led.c : driver for Cobalt LEDs
+ *
+ * Copyright 1996-2000 Cobalt Networks, Inc.
+ * Copyright 2001 Sun Microsystems, Inc.
+ *
+ * By:  Andrew Bose
+ *      Timothy Stonis
+ *      Tim Hockin
+ *      Adrian Sun
+ *      Duncan Laurie
+ *
+ * Modified By: jeff@404ster.com
+ *
+ * This should be SMP safe.  There is one definite critical region: the
+ * handler list (led_handler_lock).  The led_state is protected by led_lock, 
+ * so should be safe against simultaneous writes.  Bit banging of lights is 
+ * currently also a protected region (led_lock, rather than add a new lock).
+ */
+
+#include <linux/config.h>
+
+#ifdef CONFIG_COBALT_LED
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/miscdevice.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/fcntl.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/nvram.h>
+#include <asm/io.h>
+#include <linux/delay.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+#include <cobalt/led.h>
+#include <cobalt/i2c.h>
+#include <cobalt/superio.h>
+
+#define LED_DRIVER                      "Cobalt Networks LED driver"
+#define LED_DRIVER_VMAJ         1
+#define LED_DRIVER_VMIN         0
+
+/* the rate at which software controlled frontpanel LEDs blink */
+#define FPLED_DEFAULT_HZ        (HZ/20)
+
+/* 
+ * This is the abstracted state of active LEDs - see the defines for LED_* 
+ * LED masks are always 'unsigned int'.  You must hold led_lock to muck with
+ * these.
+ */
+static unsigned int led_state;
+static unsigned int led_blips;
+
+/* leds are PCI on genIII */
+static struct pci_dev *led_dev;
+/* on XTR the front panel LEDs are software controlled */
+struct led_handler {
+        unsigned int (*function)(void *);
+        void *data;
+        struct led_handler *next;
+        struct led_handler *prev;
+};
+struct led_handler *led_handler_list;
+static spinlock_t led_handler_lock = SPIN_LOCK_UNLOCKED;
+static struct timer_list timer;
+
+static spinlock_t led_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ * RaQ 3
+ * RaQ 4
+ * Qube 3
+ */
+#define RAQ3_SHUTLOGO_ADDR      0x7e
+#define RAQ3_SHUTDOWN_OFF       0x40 /* reverse polarity */
+#define RAQ3_COBALTLOGO_ON      0x80
+#define QUBE3_LIGHTBAR_ON       0xc0 /* direct polarity */
+#define RAQ3_WEBLIGHT_ADDR      0xb8
+#define RAQ3_WEBLIGHT_ON        0x80
+
+/*
+ * RaQ XTR
+ */
+#define MONTEREY_FPLED00                0x8000
+#define MONTEREY_FPLED01                0x4000
+#define MONTEREY_FPLED02                0x2000
+#define MONTEREY_FPLED03                0x0200
+#define MONTEREY_FPLED04                0x0080
+#define MONTEREY_FPLED05                0x0040
+#define MONTEREY_FPLED10                0x1000
+#define MONTEREY_FPLED11                0x0800
+#define MONTEREY_FPLED12                0x0400
+#define MONTEREY_FPLED13                0x0100
+#define MONTEREY_FPLED14                0x0020
+#define MONTEREY_FPLED15                0x0010
+#define MONTEREY_FPLED_ETH0_TXRX        MONTEREY_FPLED00
+#define MONTEREY_FPLED_ETH0_LINK        MONTEREY_FPLED10
+#define MONTEREY_FPLED_ETH1_TXRX        MONTEREY_FPLED01
+#define MONTEREY_FPLED_ETH1_LINK        MONTEREY_FPLED11
+#define MONTEREY_FPLED_DISK0            MONTEREY_FPLED02
+#define MONTEREY_FPLED_DISK1            MONTEREY_FPLED03
+#define MONTEREY_FPLED_DISK2            MONTEREY_FPLED04
+#define MONTEREY_FPLED_DISK3            MONTEREY_FPLED05
+#define MONTEREY_FPLED_WEB              MONTEREY_FPLED12
+#define MONTEREY_LOGOLED_BIT            0x40
+#define MONTEREY_SYSFAULTLED_BIT        0x80
+#define MONTEREY_SLED0                  (1<<3)
+#define MONTEREY_SLED1                  (1<<2)
+#define MONTEREY_SLED2                  (1<<1)
+#define MONTEREY_SLED3                  (1<<0)
+
+/*
+ * Alpine
+ */
+#define ALPINE_WEBLED_PORT              0x60e
+#define ALPINE_WEBLED_BIT               0x20
+#define ALPINE_POWERLED_PORT            0x50b
+#define ALPINE_POWERLED_CFG             0x23
+#define ALPINE_LOGOLED_BIT              0x02
+#define ALPINE_SYSFAULTLED_BIT          0x07
+
+/* 
+ * actually set the leds (icky details hidden within) 
+ * this must be protected against itself with led_lock
+ * */
+static void 
+__set_led_hw(const unsigned int newstate)
+{
+        if (cobt_is_pacifica() && led_dev) {
+                unsigned char tmp;
+                /* RaQ 3, RaQ 4
+                 * - shutdown light
+                 * - logo light
+                 * - web light
+                 */
+
+                /* read the current state of shutdown/logo lights */
+                pci_read_config_byte(led_dev, RAQ3_SHUTLOGO_ADDR, &tmp);
+
+                /* reverse polarity for shutdown light */
+                if (newstate & LED_SHUTDOWN)
+                        tmp &= ~RAQ3_SHUTDOWN_OFF;
+                else
+                        tmp |= RAQ3_SHUTDOWN_OFF;
+
+                /* logo light is straight forward */
+                if (newstate & LED_COBALTLOGO)
+                        tmp |= RAQ3_COBALTLOGO_ON;
+                else
+                        tmp &= ~RAQ3_COBALTLOGO_ON;
+
+                /* write new shutdown/logo light state */
+                pci_write_config_byte(led_dev, RAQ3_SHUTLOGO_ADDR, tmp);
+
+                /* read web light state */
+                pci_read_config_byte(led_dev, RAQ3_WEBLIGHT_ADDR, &tmp);
+                if (newstate & LED_WEBLIGHT) {
+                        tmp |= RAQ3_WEBLIGHT_ON;
+                } else {
+                        tmp &= ~RAQ3_WEBLIGHT_ON;
+                }
+
+                /* write new web light state */
+                pci_write_config_byte(led_dev, RAQ3_WEBLIGHT_ADDR, tmp);
+        } else if (cobt_is_carmel() && led_dev) {
+                unsigned char tmp;
+                /* Qube 3
+                 * - no shutdown light
+                 * - lightbar instead of logo
+                 * - no web led (wired to 2nd IDE reset for staggered startup)
+                 */
+
+                /* read the current state of lightbar */
+                pci_read_config_byte(led_dev, RAQ3_SHUTLOGO_ADDR, &tmp);
+                if (newstate & LED_COBALTLOGO) {
+                        tmp |= QUBE3_LIGHTBAR_ON;
+                } else {
+                        tmp &= ~QUBE3_LIGHTBAR_ON;
+                }
+
+                /* write new lightbar state */
+                pci_write_config_byte(led_dev, RAQ3_SHUTLOGO_ADDR, tmp);
+        } else if (cobt_is_monterey()) {
+                unsigned int tmp = 0;
+                u8 val; 
+                unsigned long flags;
+
+                if (newstate & LED_WEBLIGHT) {
+                        tmp |= MONTEREY_FPLED_WEB;
+                }
+                if (newstate & LED_ETH0_TXRX) {
+                        tmp |= MONTEREY_FPLED_ETH0_TXRX;
+                }
+                if (newstate & LED_ETH0_LINK) {
+                        tmp |= MONTEREY_FPLED_ETH0_LINK;
+                }
+                if (newstate & LED_ETH1_TXRX) {
+                        tmp |= MONTEREY_FPLED_ETH1_TXRX;
+                }
+                if (newstate & LED_ETH1_LINK) {
+                        tmp |= MONTEREY_FPLED_ETH1_LINK;
+                }
+                if (newstate & LED_DISK0) {
+                        tmp |= MONTEREY_FPLED_DISK0;
+                }
+                if (newstate & LED_DISK1) {
+                        tmp |= MONTEREY_FPLED_DISK1;
+                }
+                if (newstate & LED_DISK2) {
+                        tmp |= MONTEREY_FPLED_DISK2;
+                }
+                if (newstate & LED_DISK3) {
+                        tmp |= MONTEREY_FPLED_DISK3;
+                }
+                /* 3 LED's are unused on Monterey, but we support them */
+                if (newstate & LED_MONTEREY_UNUSED0) {
+                        tmp |= MONTEREY_FPLED13;
+                }
+                if (newstate & LED_MONTEREY_UNUSED1) {
+                        tmp |= MONTEREY_FPLED14;
+                }
+                if (newstate & LED_MONTEREY_UNUSED2) {
+                        tmp |= MONTEREY_FPLED15;
+                }
+                /* I2C controlled front-panel lights */
+                cobalt_i2c_write_byte(COBALT_I2C_DEV_LED_I, 0, tmp & 0xff);
+                cobalt_i2c_write_byte(COBALT_I2C_DEV_LED_II, 0, tmp >> 8);
+                
+                /* drive sled LEDs are on a different i2c device */
+                tmp = 0xf0; /* high nibble means something else */
+                if (newstate * LED_SLED0)
+                        tmp |= MONTEREY_SLED0;
+                if (newstate * LED_SLED1)
+                        tmp |= MONTEREY_SLED1;
+                if (newstate * LED_SLED2)
+                        tmp |= MONTEREY_SLED2;
+                if (newstate * LED_SLED3)
+                        tmp |= MONTEREY_SLED3;
+                cobalt_i2c_write_byte(COBALT_I2C_DEV_RULER, 0, tmp);
+
+                /* sysfault and logo are in APC page of nvram */
+                spin_lock_irqsave(&rtc_lock, flags);
+                superio_set_rtc_bank(PC87317_RTC_BANK_APC);
+                val = CMOS_READ(PC87317_APCR4);
+
+                /* reverse polarity */
+                if (newstate & LED_COBALTLOGO) {
+                        val &= ~MONTEREY_LOGOLED_BIT; /* logo is on */
+                } else {
+                        val |= MONTEREY_LOGOLED_BIT; /* logo is off */
+                }
+
+                if (newstate & LED_SYSFAULT) {
+                        val |= MONTEREY_SYSFAULTLED_BIT;
+                } else {
+                        val &= ~MONTEREY_SYSFAULTLED_BIT;
+                }
+
+                CMOS_WRITE(val, PC87317_APCR4);
+                superio_set_rtc_bank(PC87317_RTC_BANK_MAIN);
+                spin_unlock_irqrestore(&rtc_lock, flags);
+        } else if (cobt_is_alpine()) {
+                unsigned char val;
+            
+                /* web LED is reverse polarity */
+                val = inb(ALPINE_WEBLED_PORT);
+                if (newstate & LED_WEBLIGHT) {
+                        val &= ~ALPINE_WEBLED_BIT;
+                } else {
+                        val |= ALPINE_WEBLED_BIT;
+                }
+                outb(val, ALPINE_WEBLED_PORT);
+
+                    /* 
+                     * the power led is controled by switching the pin between
+                     * a GPIO pin (on) and a LED pin (off)
+                     */
+
+                outb( ALPINE_POWERLED_CFG, 0x2e );
+                val = inb( 0x2f );
+                if (newstate & LED_COBALTLOGO) {
+                        val &= ~ALPINE_LOGOLED_BIT;
+                } else {
+                        val |= ALPINE_LOGOLED_BIT;      
+                }
+                outb( val, 0x2f );
+
+                if (newstate & LED_SYSFAULT) {
+                    val = ALPINE_SYSFAULTLED_BIT;
+                } else {
+                    val = 0;
+                }
+
+                outb(val, ALPINE_POWERLED_PORT);
+        }
+}
+
+/* blip the front panel leds */
+static void 
+led_timer_func(unsigned long data)
+{
+        unsigned int leds = 0;
+        struct led_handler *p;
+        unsigned long flags;
+
+        /* call all registered callbacks */
+        spin_lock_irqsave(&led_handler_lock, flags);
+        for (p = led_handler_list; p; p = p->next) {
+                leds |= p->function(p->data);
+        }
+        spin_unlock_irqrestore(&led_handler_lock, flags);
+        
+        /* set the led hardware */
+        spin_lock_irqsave(&led_lock, flags);
+        __set_led_hw(led_state | leds | led_blips);
+        led_blips = 0;
+        spin_unlock_irqrestore(&led_lock, flags);
+
+        /* re-arm ourself */
+        mod_timer(&timer, jiffies + FPLED_DEFAULT_HZ);
+}
+
+static void
+__cobalt_led_set(const unsigned int leds)
+{
+        led_state = leds;
+        __set_led_hw(leds);
+}
+
+void 
+cobalt_led_set(const unsigned int leds)
+{
+        unsigned long flags;
+        spin_lock_irqsave(&led_lock, flags);
+        __cobalt_led_set(leds);
+        spin_unlock_irqrestore(&led_lock, flags);
+}
+
+void 
+cobalt_led_set_bits(const unsigned int leds)
+{
+        unsigned long flags;
+        spin_lock_irqsave(&led_lock, flags);
+        __cobalt_led_set(led_state | leds);
+        spin_unlock_irqrestore(&led_lock, flags);
+}
+
+void 
+cobalt_led_clear_bits(const unsigned int leds)
+{
+        unsigned long flags;
+        spin_lock_irqsave(&led_lock, flags);
+        __cobalt_led_set(led_state & ~leds);
+        spin_unlock_irqrestore(&led_lock, flags);
+}
+
+static void
+__cobalt_led_set_lazy(const unsigned int leds)
+{
+        /* the next led timer run will catch these changes */
+        led_state = leds;
+        /* remember lights that were 'blipped' to force an edge */
+        led_blips |= leds;
+}
+
+void 
+cobalt_led_set_lazy(const unsigned int leds)
+{
+        unsigned long flags;
+        spin_lock_irqsave(&led_lock, flags);
+        __cobalt_led_set_lazy(leds);
+        spin_unlock_irqrestore(&led_lock, flags);
+}
+
+void 
+cobalt_led_set_bits_lazy(const unsigned int leds)
+{
+        unsigned long flags;
+        spin_lock_irqsave(&led_lock, flags);
+        __cobalt_led_set_lazy(led_state | leds);
+        spin_unlock_irqrestore(&led_lock, flags);
+}
+
+void 
+cobalt_led_clear_bits_lazy(const unsigned int leds)
+{
+        unsigned long flags;
+        spin_lock_irqsave(&led_lock, flags);
+        __cobalt_led_set_lazy(led_state & ~leds);
+        spin_unlock_irqrestore(&led_lock, flags);
+}
+
+unsigned int 
+cobalt_led_get(void)
+{
+        unsigned int r;
+        unsigned long flags;
+
+        spin_lock_irqsave(&led_lock, flags);
+        r = led_state;
+        spin_unlock_irqrestore(&led_lock, flags);
+
+        return r;
+}
+
+int 
+cobalt_fpled_register(unsigned int (*function)(void *), void *data)
+{
+        struct led_handler *newh;
+        unsigned long flags;
+
+        newh = kmalloc(sizeof(*newh), GFP_ATOMIC);
+        if (!newh) {
+                EPRINTK("can't allocate memory for handler %p(%p)\n",
+                        function, data);
+                return -1;
+        }
+
+        spin_lock_irqsave(&led_handler_lock, flags);
+
+        /* head insert */
+        newh->function = function;
+        newh->data = data;
+        newh->next = led_handler_list;
+        newh->prev = NULL;
+        if (led_handler_list) {
+                led_handler_list->prev = newh;
+        }
+        led_handler_list = newh;
+        
+        spin_unlock_irqrestore(&led_handler_lock, flags);
+
+        return 0;
+}
+
+int 
+cobalt_fpled_unregister(unsigned int (*function)(void *), void *data)
+{
+        int r = -1;
+        struct led_handler *p;
+        unsigned long flags;
+        
+        spin_lock_irqsave(&led_handler_lock, flags);
+
+        for (p = led_handler_list; p; p = p->next) {
+                if (p->function == function && p->data == data) {
+                        if (p->prev) {
+                                p->prev->next = p->next;
+                        }
+                        if (p->next) {
+                                p->next->prev = p->prev;
+                        }
+                        r = 0;
+                        break;
+                }
+        }
+
+        spin_unlock_irqrestore(&led_handler_lock, flags);
+
+        return r;
+}
+
+int __init 
+cobalt_led_init(void)
+{       
+        unsigned int leds = LED_SHUTDOWN | LED_COBALTLOGO;
+    
+    printk(KERN_INFO "%s %d.%d (modified by jeff@404ster.com)\n", LED_DRIVER,LED_DRIVER_VMAJ,LED_DRIVER_VMIN);
+
+        if (cobt_is_3k()) {
+                /* LEDs for RaQ3/4 and Qube3 are on the PMU */
+                led_dev = pci_find_device(PCI_VENDOR_ID_AL,
+                        PCI_DEVICE_ID_AL_M7101, NULL);
+                if (!led_dev) {
+                        EPRINTK("can't find PMU for LED control\n");
+                        return -1;
+                }
+        } 
+        
+        /* setup up timer for fp leds */
+        init_timer(&timer);
+        timer.expires = jiffies + FPLED_DEFAULT_HZ;
+        timer.data = 0;
+        timer.function = &led_timer_func;
+        add_timer(&timer);
+
+        /* set the initial state */
+        leds |= cobalt_cmos_read_flag(COBT_CMOS_SYSFAULT_FLAG) ? 
+                LED_SYSFAULT : 0;
+        led_state = leds;
+        __set_led_hw(leds);
+
+        return 0;
+}
+
+#endif /* CONFIG_COBALT_LED */

drivers/cobalt/net.c

@@ +1 @@
+/* 
+ * cobalt net wrappers
+ * Copyright (c) 2000, Cobalt Networks, Inc.
+ * Copyright (c) 2001, Sun Microsystems, Inc.
+ * $Id: net.c,v 1.11 2001/10/27 00:40:24 thockin Exp $
+ * author: thockin@sun.com
+ *
+ * This should be SMP safe.  The only critical data is the list of devices.
+ * The LED handler runs at timer-interrupt, so we must use the IRQ safe forms
+ * of the locks. --TPH
+ */
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <linux/init.h>
+#include <linux/config.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/netdevice.h>
+#include <asm/io.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/net.h>
+#include <cobalt/led.h>
+
+#define MAX_COBT_NETDEVS        2
+static struct net_device *netdevs[MAX_COBT_NETDEVS];
+static int n_netdevs;
+static spinlock_t cobaltnet_lock = SPIN_LOCK_UNLOCKED;
+
+#if defined(CONFIG_COBALT_LED)
+static unsigned int
+net_led_handler(void *data)
+{
+        int i;
+        unsigned int leds = 0;
+        static int txrxmap[MAX_COBT_NETDEVS] = {LED_ETH0_TXRX, LED_ETH1_TXRX};
+        static int linkmap[MAX_COBT_NETDEVS] = {LED_ETH0_LINK, LED_ETH1_LINK};
+        unsigned long flags;
+        static unsigned long net_old[MAX_COBT_NETDEVS];
+
+        spin_lock_irqsave(&cobaltnet_lock, flags);
+
+        for (i = 0; i < n_netdevs; i++) {
+                unsigned long txrxstate;
+                struct net_device *dev = netdevs[i];
+                if (!dev) {
+                        continue;
+                }
+                /* check for link */
+                if (netif_running(dev) && netif_carrier_ok(dev)) {
+                        leds |= linkmap[i];
+                }
+                /* check for tx/rx */
+                txrxstate = dev->trans_start ^ dev->last_rx;
+                if (txrxstate != net_old[i]) {
+                        leds |= txrxmap[i];
+                        net_old[i] = txrxstate;
+                }
+        }
+
+        spin_unlock_irqrestore(&cobaltnet_lock, flags);
+
+        return leds;
+}
+#endif
+
+/* 
+ * We try to be VERY explicit here.  Fine for now, may eventually break down.
+ */
+void 
+cobalt_net_register(struct net_device *ndev)
+{
+        unsigned long flags;
+        int i;
+        
+        if (!ndev) {
+                return;
+        }
+
+        /* we'll track the first MAX_COBT_NETDEVS NICs */
+        if (n_netdevs >= MAX_COBT_NETDEVS) {
+                return;
+        }
+
+        spin_lock_irqsave(&cobaltnet_lock, flags);
+
+        /* find a free slot */
+        for (i = 0; i < MAX_COBT_NETDEVS; i++) {
+                if (!netdevs[i]) {
+                        netdevs[i] = ndev;
+                        n_netdevs++;
+                        break;
+                }
+        }
+
+        spin_unlock_irqrestore(&cobaltnet_lock, flags);
+}
+
+void 
+cobalt_net_unregister(struct net_device *ndev)
+{
+        int i;
+        unsigned long flags;
+        
+        if (!ndev) {
+                return;
+        }
+
+        spin_lock_irqsave(&cobaltnet_lock, flags);
+
+        /* try to remove it from the list */
+        for (i = 0; i < MAX_COBT_NETDEVS; i++) {
+                if (netdevs[i] == ndev) {
+                        netdevs[i] = NULL;
+                        n_netdevs--;
+                        break;
+                }
+        }
+
+        spin_unlock_irqrestore(&cobaltnet_lock, flags);
+}
+
+int __init
+cobalt_net_init(void)
+{
+#if defined(CONFIG_COBALT_LED)
+        /* register an LED handler */
+        cobalt_fpled_register(net_led_handler, NULL);
+#endif
+
+        return 0;
+}

drivers/cobalt/raminfo.c

@@ +1 @@
+/* $Id: raminfo.c,v 1.7 2001/10/29 22:21:36 thockin Exp $
+ *
+ * Copyright (c) 2000-2001 Sun Microsystems, Inc.
+ * All Rights Reserved.
+ *
+ * This is SMP safe - the init runs once on load, and the rest is just
+ * printing information. --TPH
+ */
+#include <linux/config.h>
+
+#if defined(CONFIG_COBALT_RAMINFO) || defined(CONFIG_COBALT_RAMINFO_MODULE)
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/proc_fs.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+
+#define RAM_DRIVER                      "Cobalt Networks RAM Info driver"
+#define RAM_DRIVER_VMAJ         1
+#define RAM_DRIVER_VMIN         0
+
+#define MAX_DIMM_SLOTS  4
+
+enum dimm_t {
+        DIMM_TYPE_FPM_DRAM,
+        DIMM_TYPE_EDO_DRAM,
+        DIMM_TYPE_REG_SDRAM,
+        DIMM_TYPE_SDRAM
+};
+
+static char *dimm_desc[] = {
+        "Fast-page Mode DRAM",
+        "EDO DRAM",
+        "Registered SDRAM",
+        "SDRAM",
+};
+
+struct dimm_slot {
+        int num;
+        enum dimm_t type;
+        uint16_t size;
+        int ecc;
+};
+
+struct raminfo {
+        int total;
+        int (*query)(struct dimm_slot *);
+        struct pci_dev *dev;
+        struct dimm_slot *dimm;
+#ifdef CONFIG_PROC_FS
+        struct proc_dir_entry *proc;
+#endif /* CONFIG_PROC_FS */
+};
+
+/*########################################################################*/
+
+static int serverworks_le_dimm_info(struct dimm_slot *);
+static int ali_1541_dimm_info(struct dimm_slot *);
+static int raminfo_read_proc(char*, char**, off_t, int, int*, void*);
+
+/* RaQ-3, RaQ-4, Qube-3
+ * - uses ALI M1541 for memory controller
+ * - has 2 dimm slots */
+static struct raminfo gen3_raminfo = {
+        total: 2,
+        query: ali_1541_dimm_info
+};
+/* RaQ-XTR (Monterey)
+ * - uses ServerWorks CNB30LE for Memory Controller
+ * - has 4 dimm slots */
+static struct raminfo gen5_monterey_raminfo = {
+        total: 4,
+        query: serverworks_le_dimm_info
+};
+/* RaQ (Alpine)
+ * - uses ServerWorks CNB30LE for Memory Controller
+ * - has 2 dimm slots */
+static struct raminfo gen5_alpine_raminfo = {
+        total: 2,
+        query: serverworks_le_dimm_info
+};
+
+static struct raminfo *sys_raminfo;
+
+/*########################################################################*/
+
+#define SERVERWORKS_DRAM_MRPR           (0x90)
+#define SERVERWORKS_DRAM_MRAR(slot)     (0x7c + (slot))
+#define SERVERWORKS_DRAM_ECCR           (0xe0)
+
+static int
+serverworks_le_dimm_info(struct dimm_slot *dimm)
+{
+        int row;
+        uint8_t rar, active, eccr;
+        uint16_t ma_map[] = {
+                32, 16, 32, 256, 512, 128, 128, 64, 256, 128, 64, 64, 128,
+        };
+
+        if (!sys_raminfo || !sys_raminfo->dev || !dimm)
+                return -ENOSYS;
+
+        pci_read_config_byte(sys_raminfo->dev,
+                             SERVERWORKS_DRAM_MRPR, &active);
+        pci_read_config_byte(sys_raminfo->dev,
+                             SERVERWORKS_DRAM_MRAR(dimm->num), &rar);
+
+        /* serverworks uses only registered sdram */
+        dimm->type = DIMM_TYPE_REG_SDRAM;
+        dimm->size = 0;
+
+        /* check to see if ECC is enabled (bit 4 of reg 0xE0) */
+        pci_read_config_byte(sys_raminfo->dev,
+                             SERVERWORKS_DRAM_ECCR, &eccr);
+        dimm->ecc = (eccr & (1<<2)) ? 1 : 0;
+
+        /* two rows for each dimm slot */
+        for (row=2*dimm->num; row<=(2*dimm->num+1); row++) {
+                /* each active row will have corresponding bit
+                 * set in the Memory Row Presence Register */
+                if (active & (1 << row)) {
+                        /* lookup size ma_map table */
+                        dimm->size += ma_map[ rar & 0xf ];
+                }
+                /* two rows per RAR register, bits 7-4 and bits 3-0 */
+                rar >>= 4;
+        }
+
+        return 0;
+}
+
+#define ALI_DRAM_CONF_1(row)            (0x60 + ((row) * 2))
+#define ALI_DRAM_CONF_2(row)            (0x61 + ((row) * 2))
+#define ALI_DIMM_TYPE(d2)               (((d2) >> 4) & 0x3)
+#define ALI_DIMM_MMAP(d2)               (((d2) >> 6) & 0x3)
+#define ALI_DIMM_SIZE(d1, d2)           (((((d2) & 0xf) << 8) | (d1)) + 1)
+
+static int
+ali_1541_dimm_info(struct dimm_slot *dimm)
+{
+        int row;
+        uint8_t dbc1, dbc2;
+
+        if (!sys_raminfo || !sys_raminfo->dev || !dimm)
+                return -ENOSYS;
+
+        dimm->size = 0;
+        dimm->ecc  = 0;
+
+        /* read two rows per dimm (for double-side) */
+        for (row=2*dimm->num; row<=(2*dimm->num + 1); row++) {
+                pci_read_config_byte(sys_raminfo->dev,
+                                     ALI_DRAM_CONF_2(row), &dbc2);
+
+                /* row is empty iff dimm type and ma_map are both 0 */
+                if (!ALI_DIMM_TYPE(dbc2) && !ALI_DIMM_MMAP(dbc2))
+                        continue;
+
+                pci_read_config_byte(sys_raminfo->dev,
+                                     ALI_DRAM_CONF_1(row), &dbc1);
+
+                /* type is bits 4-5 of dimm conf reg 2 */
+                dimm->type = ALI_DIMM_TYPE(dbc2);
+
+                /* A27-A20 address lines are bits 7-0 of dimm conf reg 1
+                 * A31-A28 address lines are bits 3-0 of dimm conf reg 2 */
+                dimm->size = ALI_DIMM_SIZE(dbc1, dbc2);
+        }
+
+        /* the M1541 uses "not less than" policy to determine which row a
+         * memory address resides in.  the top address boundary for each
+         * row is the maximum memory value minus 1.  so to determine the 
+         * size of a row you must subtract the size of the previous row.
+         * (unless this is slot 0 or the first populated slot) */
+        if (dimm->num > 0 && dimm->size > 0) {
+                uint16_t sz;
+                pci_read_config_byte(sys_raminfo->dev,
+                                     ALI_DRAM_CONF_1(2*dimm->num - 1), &dbc1);
+                pci_read_config_byte(sys_raminfo->dev,
+                                     ALI_DRAM_CONF_2(2*dimm->num - 1), &dbc2);
+                sz = ALI_DIMM_SIZE(dbc1, dbc2);
+                dimm->size -= (sz > 1) ? sz : 0;
+        }
+        
+        return 0;
+}
+
+int __init
+cobalt_raminfo_init(void)
+{
+        int j;
+
+        /* determine system type and find memory controller pci dev
+         * so we don't have to do pci lookup for each proc read */
+        if (cobt_is_3k()) {
+                sys_raminfo = &gen3_raminfo;
+                sys_raminfo->dev = pci_find_device(PCI_VENDOR_ID_AL,
+                                   PCI_DEVICE_ID_AL_M1541, NULL);
+        } else if (cobt_is_5k()) {
+                if (cobt_is_monterey()) {
+                        sys_raminfo = &gen5_monterey_raminfo;
+                } else if (cobt_is_alpine()) {
+                        sys_raminfo = &gen5_alpine_raminfo;
+                } else {
+                        EPRINTK("unable to identify gen5 board\n");
+                        return -ENOSYS;
+                }
+                sys_raminfo->dev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
+                                   PCI_DEVICE_ID_SERVERWORKS_LE, NULL);
+        }
+
+        if (!sys_raminfo || !sys_raminfo->dev) {
+                EPRINTK("unable to identify system type\n");
+                return -ENOSYS;
+        }
+        
+        printk(KERN_INFO "%s %d.%d (modified by jeff@404ster.com)\n", RAM_DRIVER,RAM_DRIVER_VMAJ,RAM_DRIVER_VMIN);
+
+#ifdef CONFIG_PROC_FS
+        /* add entry to /proc filesytem */
+        sys_raminfo->proc = create_proc_entry("raminfo",
+                            S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH, proc_cobalt);
+        if (!sys_raminfo->proc) {
+                EPRINTK("can't create /proc/cobalt/raminfo\n");
+                return -ENOENT;
+        }
+        sys_raminfo->proc->owner = THIS_MODULE;
+        sys_raminfo->proc->write_proc = NULL;
+        sys_raminfo->proc->read_proc = raminfo_read_proc;
+#endif /* CONFIG_PROC_FS */
+
+        /* create arrary of dimm slots to store info */
+        sys_raminfo->dimm = kmalloc(
+                sys_raminfo->total * sizeof(struct dimm_slot), GFP_ATOMIC);
+        if (!sys_raminfo->dimm) {
+                EPRINTK("unable to allocate memory\n");
+#ifdef CONFIG_PROC_FS
+                if (sys_raminfo->proc) {
+                        remove_proc_entry("raminfo", proc_cobalt);
+                        sys_raminfo->proc = NULL;
+                }
+#endif /* CONFIG_PROC_FS */
+                return -ENOMEM;
+        }
+
+        {
+                struct dimm_slot *ds = sys_raminfo->dimm;
+                for (j=0; j<sys_raminfo->total; j++, ds++) {
+                        if (!ds) continue;
+                        ds->num = j;
+                        if (sys_raminfo->query(ds) < 0) {
+                                EPRINTK("unable to read dimm %d\n", j);
+                                ds->num = -1;
+                        }
+                }
+        }
+
+        return 0;
+}
+
+static void __exit
+cobalt_raminfo_exit(void)
+{
+#ifdef CONFIG_PROC_FS
+        if (sys_raminfo->proc) {
+                remove_proc_entry("raminfo", proc_cobalt);
+                sys_raminfo->proc = NULL;
+        }
+#endif /* CONFIG_PROC_FS */
+
+        if (sys_raminfo->dimm) {
+                kfree(sys_raminfo->dimm);
+                sys_raminfo->dimm = NULL;
+        }
+
+        sys_raminfo->dev = NULL;
+        sys_raminfo = NULL;
+}
+
+#ifdef CONFIG_PROC_FS
+static int
+raminfo_read_proc(char *buf, char **st, off_t off, int len, int *eof, void *x)
+{
+        int rlen, i;
+        struct dimm_slot *ds;
+
+        if (!sys_raminfo)
+                return -ENOSYS;
+
+        //MOD_INC_USE_COUNT;
+
+        ds = sys_raminfo->dimm;
+        for (rlen=i=0; i<sys_raminfo->total; i++, ds++) {
+                if (!ds || ds->num < 0)
+                        continue;
+                rlen += sprintf(buf+rlen, "%d [%s%s]: %u MB\n", i,
+                                ds->size ? dimm_desc[ds->type] : "Empty",
+                                ds->size ? ds->ecc ? "+ECC" : "" : "",
+                                ds->size);
+        }
+
+        //MOD_DEC_USE_COUNT;
+
+        return cobalt_gen_proc_read(buf, rlen, st, off, len, eof);
+}
+#endif /* CONFIG_PROC_FS */
+
+#ifdef CONFIG_COBALT_RAMINFO_MODULE
+module_init(cobalt_raminfo_init);
+module_exit(cobalt_raminfo_exit);
+#endif
+
+MODULE_AUTHOR("Sun Cobalt");
+MODULE_DESCRIPTION("DIMM Information");
+MODULE_LICENSE("GPL");
+
+#endif /* CONFIG_COBALT_RAMINFO || CONFIG_COBALT_RAMINFO_MODULE */

drivers/cobalt/ruler.c

@@ +1 @@
+/* 
+ * cobalt ruler driver 
+ * Copyright (c) 2000, Cobalt Networks, Inc.
+ * Copyright (c) 2001, Sun Microsystems, Inc.
+ * $Id: ruler.c,v 1.23 2002/08/29 00:33:01 uzi Exp $
+ *
+ * author: asun@cobalt.com, thockin@sun.com
+ *
+ * This should be SMP safe.  There is one critical piece of data, and thus
+ * one lock.  The ruler_lock protects the arrays of channels(hwifs) and
+ * busproc function pointers.  These are only ever written in the
+ * register/unregister functions but read in several other places.  A
+ * read/write lock is appropriate. The global switches and sled_leds are 
+ * atomic_t. --TPH
+ */
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/config.h>
+#include <linux/pci.h>
+#include <linux/proc_fs.h>
+#include <linux/sched.h>
+#include <linux/ioport.h>
+#include <linux/ide.h>
+#include <linux/hdreg.h>
+#include <linux/notifier.h>
+#include <linux/sysctl.h>
+#include <linux/reboot.h>
+#include <linux/delay.h>
+#include <linux/ide.h>
+#include <asm/io.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+#include <cobalt/i2c.h>
+#include <cobalt/acpi.h>
+#include <cobalt/led.h>
+#include <cobalt/ruler.h>
+
+#define RULER_TIMEOUT           (HZ >> 1)  /* .5s */
+#define MAX_COBT_DRIVES         4
+
+#define RULER_DRIVER                    "Cobalt Networks Disk Ruler driver"
+#define RULER_DRIVER_VMAJ               1
+#define RULER_DRIVER_VMIN               0
+
+/* all of this is for gen V */
+static struct timer_list cobalt_ruler_timer;
+static rwlock_t ruler_lock = RW_LOCK_UNLOCKED;
+static ide_drive_t *channels[MAX_COBT_DRIVES];
+
+static int (*busprocs[MAX_COBT_DRIVES])(ide_drive_t *, int);
+
+//static cob_busprocs_t busprocs[MAX_COBT_DRIVES];
+
+/* NOTE: switches is a bitmask of DETACHED sleds */
+static atomic_t switches = ATOMIC_INIT(0);      
+static atomic_t sled_leds = ATOMIC_INIT(0);
+static int sled_led_map[] = {LED_SLED0, LED_SLED1, LED_SLED2, LED_SLED3};
+static int ruler_detect;
+static int initialized;
+
+static void ruler_hwif_added(ide_hwif_t *hwif, int idx);
+
+static inline u8
+read_switches(void)
+{
+        u8 state = 0;
+        if (cobt_is_monterey()) {
+                int tries = 3;
+
+                /* i2c can be busy, and this can read wrong - try a few times */
+                while (tries--) {
+                        state = cobalt_i2c_read_byte(COBALT_I2C_DEV_DRV_SWITCH, 
+                                0);
+                        if ((state & 0xf0) != 0xf0) {
+                                break;
+                        }
+                }
+        }
+
+        return state;
+}
+
+static inline unsigned int
+get_sled_leds(void)
+{
+        return atomic_read(&sled_leds);
+}
+
+/*
+ * deal with sled leds: LED on means OK to remove
+ * NOTE: all the reset lines are kept high. 
+ * NOTE: the reset lines are in the reverse order of the switches. 
+ */
+static void
+set_sled_leds(unsigned int leds)
+{
+        if (cobt_is_monterey()) {
+                unsigned int offed = get_sled_leds();
+
+                offed &= ~leds;
+                atomic_set(&sled_leds, leds);
+#ifdef CONFIG_COBALT_LED
+                cobalt_led_clear_bits_lazy(offed);
+                cobalt_led_set_bits_lazy(leds);
+#endif
+        }
+}
+
+/* this must be called with the ruler_lock held for read */
+static int
+do_busproc(int idx, ide_drive_t *drive, int arg)
+{
+        if (cobt_is_monterey()) {
+                /* sed sled LEDs */
+                switch (arg) {
+                        case BUSSTATE_ON:
+                                set_sled_leds(get_sled_leds() & 
+                                        ~sled_led_map[idx]);
+                                break;
+                        case BUSSTATE_OFF:
+                        case BUSSTATE_TRISTATE:
+                                set_sled_leds(get_sled_leds() | 
+                                        sled_led_map[idx]);
+                                break;
+                        default:
+                                WPRINTK("unknown busproc argument (%d)\n", arg);
+                }
+        }
+
+        /* do the real work */
+        return busprocs[idx](drive, arg);
+}
+
+static void 
+ruler_timer_fn(unsigned long data)
+{
+        if (cobt_is_monterey()) {
+                u8 state;
+                int i;
+                unsigned int now, expected, bit, swcur;
+
+                state = read_switches();
+                if ((state & 0xf0) == 0xf0) {
+                        return;
+                }
+                swcur = atomic_read(&switches);
+        
+                state &= 0xf;
+                read_lock(&ruler_lock);
+                for (i = 0; i < MAX_COBT_DRIVES; i++) {
+                        bit = 1 << i;
+                        now = state & bit;
+                        expected = swcur & bit;
+                        if (now == expected) {
+                                /* no changes to worry about */
+                                continue;
+                        }
+
+                        if (now) {
+                                /* a freshly detached drive */
+                                atomic_set(&switches, swcur | bit);
+                                if (channels[i]) {
+                                        printk("disabling ide ruler "
+                                                "channel %d\n", i);
+                                        do_busproc(i, channels[i], 
+                                                BUSSTATE_TRISTATE);
+                                } else {
+                                        WPRINTK("drive detach on bad "
+                                                "channel (%d)\n", i);
+                                }
+                                set_sled_leds(get_sled_leds() | 
+                                        sled_led_map[i]);
+                        } else {
+                                /* 
+                                 * do we want to do anything when a re-attach 
+                                 * is detected?
+                                 */
+                        }
+                }
+                read_unlock(&ruler_lock);
+        }
+}
+
+#ifdef CONFIG_COBALT_ACPI
+static int
+ruler_interrupt(cobalt_acpi_evt *evt, void * data)
+{
+        if (cobt_is_monterey() && ruler_detect) {
+                u8 state;
+
+                state = read_switches();
+                if ((state & 0xf0) != 0xf0) {
+                        /* this is protected inside mod_timer */
+                        mod_timer(&cobalt_ruler_timer, jiffies + RULER_TIMEOUT);
+                }
+                
+                evt->ev_data = state;
+                /* empirical: delay enough to debounce */
+                udelay(10);
+        }
+        return 0;
+}
+#endif /* CONFIG_COBALT_ACPI */
+
+#if defined(CONFIG_COBALT_LED)
+/* figure which LEDs to blink */
+static unsigned int
+ide_led_handler(void *data)
+{
+        ide_hwif_t *hwif;
+        unsigned int leds = 0;
+
+        if (cobt_is_monterey()) {
+                int i;
+                static int ledmap[MAX_COBT_DRIVES] = { 
+                        LED_DISK0, LED_DISK1, LED_DISK2, LED_DISK3
+                };
+                static unsigned long old[MAX_COBT_DRIVES];
+
+                read_lock(&ruler_lock);
+
+                for (i = 0; i < MAX_COBT_DRIVES; i++) {
+                        if (channels[i])
+                        {
+                                hwif = HWIF(channels[i]);
+                                if (hwif->drives[0].present &&
+                                    hwif->drives[0].service_start != old[i]) {
+                                        leds |= ledmap[i];
+                                        old[i] = hwif->drives[0].service_start;
+                                }
+                        }
+                }
+
+                read_unlock(&ruler_lock);
+        }
+
+        return leds;
+}
+#endif
+
+/* this is essentially an exported function - it is in the hwif structs */
+static int ruler_busproc_fn(ide_drive_t *drive, int arg)
+{
+        int r = 0;
+        if (cobt_is_monterey()) {
+                int idx;
+
+                read_lock(&ruler_lock);
+
+                for (idx = 0; idx < MAX_COBT_DRIVES; idx++) {
+                        if (channels[idx] == drive) {
+                                break;
+                        }
+                }
+
+                if (idx >= MAX_COBT_DRIVES) {
+                        /* not a hwif we manage? */
+                        return 0;
+                }
+
+                r = do_busproc(idx, drive, arg);
+                read_unlock(&ruler_lock);
+        }
+
+        return r;
+}
+        
+/* 
+ * We try to be VERY explicit here.  Fine for now, may eventually break down.
+ */
+void 
+cobalt_ruler_register(ide_drive_t *drive)
+{
+        ide_hwif_t *hwif = HWIF(drive);
+
+        if (cobt_is_monterey()) {
+                struct pci_dev *dev;
+                int idx;
+                unsigned long flags;
+
+                if (!hwif) {
+                        return;
+                }
+
+                /* Cobalt rulers only have HPT370 controllers on bus 1 */
+                dev = hwif->pci_dev;
+                if (!dev)
+                        return;
+
+                if (dev->vendor != PCI_VENDOR_ID_TTI
+                 || dev->device != PCI_DEVICE_ID_TTI_HPT366
+                 || dev->bus->number != 1) {
+                        /* ignore it */
+                        return;
+                }
+
+                /* IDE ruler has controllers at dev 3 and 4, ONLY */
+                if (dev->devfn == PCI_DEVFN(3,0)) {
+                        idx = hwif->channel;
+                } else if (dev->devfn == PCI_DEVFN(4,0)) {
+                        idx = 2 + hwif->channel;
+                } else {
+                        return;
+                }
+
+                if (idx >= MAX_COBT_DRIVES) {
+                        return;
+                }
+
+                write_lock_irqsave(&ruler_lock, flags);
+
+                /* save a pointer to the hwif, and trap it's busproc() */
+                channels[idx] = drive;
+                if (hwif->busproc) {
+                        busprocs[idx] = HWIF(drive)->busproc;
+                        hwif->busproc = &ruler_busproc_fn;
+                }
+
+                write_unlock_irqrestore(&ruler_lock, flags);
+
+                /* now that we have trapped it, do what we need to initialize 
+                 * the drive - if we haven't been initialized, we'll call this
+                 * later. 
+                 */
+                if (initialized) {
+                        ruler_hwif_added(hwif, idx);
+                }
+        }
+}
+
+static void
+ruler_hwif_added(ide_hwif_t *hwif, int idx)
+{
+        /* the associated switch should be closed */
+        if (hwif->drives[0].present) {
+                /* set the sled LED off - not safe to remove */
+                set_sled_leds(get_sled_leds() & ~sled_led_map[idx]);
+        }
+}
+
+void cobalt_ruler_unregister(ide_drive_t *drive)
+{
+        if (cobt_is_monterey()) {
+                int i;
+                unsigned long flags;
+
+                write_lock_irqsave(&ruler_lock, flags);
+
+                for (i = 0; i < MAX_COBT_DRIVES; i++) {
+                        if (channels[i] == drive) {
+                                channels[i] = NULL;
+                                HWIF(drive)->busproc = busprocs[i];
+                                busprocs[i] = NULL;
+                        }
+                }
+
+                write_unlock_irqrestore(&ruler_lock, flags);
+        }
+}
+
+int __init 
+cobalt_ruler_init(void)
+{
+        if (cobt_is_monterey()) {
+                int err;
+                u8 tmp;
+                int i;
+
+                /* initialize switches */
+                tmp = read_switches();
+                ruler_detect = ((tmp & 0xf0) == 0xf0) ? 0 : 1;
+                tmp &= 0xf;
+                atomic_set(&switches, tmp);
+
+                /* initialize our timer */
+                init_timer(&cobalt_ruler_timer);
+                cobalt_ruler_timer.function = ruler_timer_fn;
+        
+        printk(KERN_INFO "%s %d.%d (modified by jeff@404ster.com)\n", RULER_DRIVER,RULER_DRIVER_VMAJ,RULER_DRIVER_VMIN);
+        
+#ifdef CONFIG_COBALT_ACPI
+                err = cobalt_acpi_register_evt_handler(ruler_interrupt, 
+                        COBALT_ACPI_EVT_SLED, NULL );
+                
+                if (err) {
+                        EPRINTK("can't register interrupt handler %p\n", 
+                                ruler_interrupt);
+                }
+#endif
+        
+                /* set initial sled LED state */
+                set_sled_leds(LED_SLED0 | LED_SLED1 | LED_SLED2 | LED_SLED3);
+
+                /* run through any devices that were registered before */
+                for (i = 0; i < MAX_COBT_DRIVES; i++) {
+                        if (channels[i]) {
+                                ruler_hwif_added(HWIF(channels[i]), i);
+                        }
+                }
+                
+#if defined(CONFIG_COBALT_LED)
+                /* register for a blinky LEDs callback */
+                err = cobalt_fpled_register(ide_led_handler, NULL);
+                if (err) {
+                        EPRINTK("can't register LED handler %p\n", 
+                                ide_led_handler);
+                }
+#endif
+        }
+
+        initialized = 1;
+
+        return 0;
+}

drivers/cobalt/sensors.c

@@ +1 @@
+/* $Id: sensors.c,v 1.31 2002/08/29 00:33:01 uzi Exp $
+ * Copyright (c) 2000-2001 Sun Microsystems, Inc 
+ *
+ * This should be SMP safe.  There is just one race - the read in /proc.
+ * It now guards against itself with a semaphore.  Note that we don't use a
+ * spinlock because any of the methods may (and do!) block.
+ */
+#include <linux/config.h>
+#ifdef CONFIG_COBALT_SENSORS
+
+#include <stdarg.h>
+#include <stddef.h>
+
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/config.h>
+#include <linux/delay.h>
+#include <linux/ctype.h>
+#include <linux/proc_fs.h>
+
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+#include <cobalt/i2c.h>
+#include <cobalt/sensors.h>
+#include <cobalt/acpi.h>
+
+#define SENS_DRIVER                     "Cobalt Networks Sensor driver"
+#define SENS_DRIVER_VMAJ                1
+#define SENS_DRIVER_VMIN                0
+
+/* externals */
+unsigned int cobalt_nthermals;
+unsigned int cobalt_nvoltages;
+
+/* data about a sensor for generic handling */
+/* we could add data about a low/high range, if needed */
+struct sensor {
+        int sensor; /* sensor #, so maps can be logically ordered */
+        char *desc;
+        int last_val;
+        unsigned long cache;
+        unsigned long cache_timeout;
+        /* pre/post hook - 1 for pre, 0 for post */
+        void (*setup)(struct sensor *s, int pre); 
+        /* read as an int, to be passed to format() */
+        int (*read)(struct sensor *s);
+        /* hook for scaling values */
+        int (*scale)(struct sensor *s, int val);
+        /* format the value as a string */
+        char *(*format)(struct sensor *s, int val, char *buf, int len);
+};
+
+/* some stuff for generic formatting */
+#define DEC_SCALAR              100
+static char *decimal_format(struct sensor *s, int val, char *buf, int len);
+
+static DECLARE_MUTEX(sensor_sem);
+static struct sensor *therm_map;
+static struct sensor *volt_map;
+
+#define CACHE_DEF               30
+
+#ifdef CONFIG_PROC_FS
+static struct proc_dir_entry *proc_csensors;
+static struct proc_dir_entry *proc_therm;
+static struct proc_dir_entry *proc_volt;
+static int therm_read_proc(char *buf, char **start, off_t pos, int len,
+        int *eof, void *x);
+static int therm_write_proc(struct file *file, const char *buf,
+        unsigned long len, void *x);
+static int volt_read_proc(char *buf, char **start, off_t pos, int len,
+        int *eof, void *x);
+static int volt_write_proc(struct file *file, const char *buf,
+        unsigned long len, void *x);
+#endif
+
+static int lm77_therm_read(struct sensor *s);
+static int adm1029_init(void);
+static int adm1029_therm_read(struct sensor *s);
+static int adm1029_volt_read(struct sensor *s);
+static int alpine_vcore_scale(struct sensor *s, int val);
+static void alpine_vbat_switch(struct sensor *s, int pre);
+static int alpine_vbat_scale(struct sensor *s, int val);
+
+/* sensor name mappings */
+static struct sensor gen3_therm_map[] = {
+        {0, "CPU", 0, 0, CACHE_DEF, NULL, lm77_therm_read, NULL, decimal_format},
+};
+static struct sensor monterey_therm_map[] = {
+        {0, "CPU0", 0, 0, CACHE_DEF, NULL, lm77_therm_read, NULL, decimal_format},
+        {1, "CPU1", 0, 0, CACHE_DEF, NULL, lm77_therm_read, NULL, decimal_format},
+        {2, "Case0", 0, 0, CACHE_DEF, NULL, lm77_therm_read, NULL, decimal_format},
+        {3, "Case1", 0, 0, CACHE_DEF, NULL, lm77_therm_read, NULL, decimal_format},
+};
+static struct sensor alpine_therm_map[] = {
+        {1, "CPU", 0, 0, CACHE_DEF, NULL, adm1029_therm_read, NULL, decimal_format},
+        {0, "Case", 0, 0, CACHE_DEF, NULL, adm1029_therm_read, NULL, decimal_format},
+};
+static struct sensor alpine_volt_map[] = {
+        {0, "Vcore", 0, 0, CACHE_DEF, NULL, adm1029_volt_read, 
+                alpine_vcore_scale, decimal_format},
+        {1, "Vtt", 0, 0, CACHE_DEF, NULL, adm1029_volt_read, NULL, decimal_format},
+        {0, "Vbat", 0, 0, CACHE_DEF<<10, alpine_vbat_switch, adm1029_volt_read, 
+                alpine_vbat_scale, decimal_format},
+};
+
+int __init
+cobalt_sensors_init(void)
+{
+        if (cobt_is_3k()) {
+                cobalt_nthermals = 1;
+                cobalt_nvoltages = 0;
+                therm_map = gen3_therm_map;
+        } else if (cobt_is_monterey()) {
+                cobalt_nthermals = 4;
+                cobalt_nvoltages = 0;
+                therm_map = monterey_therm_map;
+        } else if (cobt_is_alpine()) {
+                cobalt_nthermals = 2;
+                cobalt_nvoltages = 3;
+                therm_map = alpine_therm_map;
+                volt_map = alpine_volt_map;
+                adm1029_init();
+        } else  {
+                return -1;
+        }
+    
+    printk(KERN_INFO "%s %d.%d (modified by jeff@404ster.com)\n", SENS_DRIVER,SENS_DRIVER_VMAJ,SENS_DRIVER_VMIN);
+    
+#ifdef CONFIG_PROC_FS
+        /* make files in /proc */
+        proc_csensors = proc_mkdir("sensors", proc_cobalt);
+        if (!proc_csensors) {
+                EPRINTK("can't create /proc/cobalt/sensors\n");
+                return -1;
+        }
+        if (cobalt_nthermals) {
+                proc_therm = create_proc_entry("thermal",
+                                               S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH,
+                                               proc_csensors);
+                if (!proc_therm) {
+                        EPRINTK("can't create /proc/cobalt/sensors/thermal\n");
+                }
+                proc_therm->read_proc = therm_read_proc;
+                proc_therm->write_proc = therm_write_proc;
+        }
+        if (cobalt_nvoltages) {
+                proc_volt = create_proc_entry("voltage",
+                                              S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH,
+                                              proc_csensors);
+                if (!proc_volt) {
+                        EPRINTK("can't create /proc/cobalt/sensors/voltage\n");
+                }
+                proc_volt->read_proc = volt_read_proc;
+                proc_volt->write_proc = volt_write_proc;
+
+        }
+#endif
+
+        return 0;
+}
+
+static char *
+sensor_read(struct sensor *s, char *buf, int len)
+{
+        int val;
+
+        if (s->cache && time_after(s->cache_timeout*HZ + s->cache, jiffies))
+                val = s->last_val;
+        else {
+                if (s->setup) s->setup(s, 1);
+                val = s->read(s);
+                s->last_val = val;
+                s->cache = jiffies;
+                if (s->setup) s->setup(s, 0);
+        }
+                
+        if (s->scale) val = s->scale(s, val);
+        return s->format(s, val, buf, len);
+}
+
+/* exported - nicer inline functions in header */
+char *
+__cobalt_thermal_read(unsigned int idx, char *buf, int len)
+{
+        if (idx >= cobalt_nthermals || !buf) {
+                return NULL;
+        }
+
+        return sensor_read(&therm_map[idx], buf, len);
+}
+
+/* exported - nicer inline functions in header */
+char *
+__cobalt_voltage_read(unsigned int idx, char *buf, int len)
+{
+        if (idx >= cobalt_nvoltages || !buf) {
+                return NULL;
+        }
+
+        return sensor_read(&volt_map[idx], buf, len);
+}
+
+/* generic function for formatting decimal scaled data */
+static char *
+decimal_format(struct sensor *s, int val, char *buf, int len)
+{
+        int plen;
+        
+        if (!buf || len <= 0) {
+                return NULL;
+        }
+
+        plen = snprintf(buf, len, "%d", val/DEC_SCALAR);
+        len -= plen;
+
+        if (val % DEC_SCALAR && len > 0) {
+                snprintf(buf+plen, len, ".%02d", val%DEC_SCALAR);
+        }
+
+        return buf;
+}
+
+#define LM77_TEMP               0x0
+static int 
+lm77_therm_read(struct sensor *s)
+{
+        int sensor = s->sensor;
+        int tmp;
+        int val = 0;
+        int tries = 2;
+
+        /* sometimes it reads as zero... try again */
+        while (tries--) {
+                /* LM77 returns the bytes backwards - <shrug> */
+                /* address = base + deviceid + 1 for read */
+                val = cobalt_i2c_read_word(COBALT_I2C_DEV_LM77 +
+                        (sensor<<1) + 1, LM77_TEMP);
+                if (val < 0) {
+                        /* read failed, return the last known value */
+                        return s->last_val;
+                }
+
+                tmp = (val<<8 & 0xff00) + (val>>8 & 0x00ff);
+                if (tmp) {
+                        val = tmp >> 4;
+                        val *= DEC_SCALAR;
+                        if (tmp & 0x8) {
+                                val += DEC_SCALAR/2;
+                        }
+                        break;
+                }
+        }
+        return val;
+}
+
+#define ADM1029_CTL_CFAULT_OVER         0x01
+#define ADM1029_CTL_ALARM_OVER          0x02
+#define ADM1029_CTL_INT_OVER            0x04
+#define ADM1029_CTL_ALARM_LOW           0x08
+#define ADM1029_CTL_CFAULT_UNDER        0x10
+#define ADM1029_CTL_ALARM_UNDER         0x20
+#define ADM1029_CTL_INT_UNDER           0x40
+#define ADM1029_CTL_LATCH               0x80
+
+#define ADM1029_FAN_CTL(i)              (0x18 + i)
+#define ADM1029_TEMP_CTL(i)             (0x40 + i)
+#define ADM1029_AIN_CTL(i)              (0x50 + i)
+
+#define ADM1029_TEMP_HIGH(i)            (0x90 + i)
+#define ADM1029_TEMP_LOW(i)             (0x98 + i)
+#define ADM1029_AIN_HIGH(i)             (0xa8 + i)
+#define ADM1029_AIN_LOW(i)              (0xb0 + i)
+
+#define ADM1029_TEMP_VALUE(i)           (0xa0 + i)
+#define ADM1029_AIN_VALUE(i)            (0xb8 + i)
+
+#ifdef CONFIG_COBALT_ACPI
+static int
+adm1029_handler(cobalt_acpi_evt *evt, void * data)
+{
+        int j, k;
+
+        switch (evt->ev_type) {
+        case COBALT_ACPI_EVT_SM_INT:
+                evt->ev_data = 0;
+                evt->ev_type = COBALT_ACPI_EVT_VOLT;
+                for (j=0; j<cobalt_nvoltages; j++) {
+                        k = cobalt_i2c_read_byte(COBALT_I2C_DEV_ADM1029,
+                                 ADM1029_AIN_CTL(volt_map[j].sensor));
+                        if (k & ADM1029_CTL_LATCH) {
+                                evt->ev_data |= (1 << j);
+                                volt_map[j].cache = 0;
+                        }
+                }
+                break;
+
+        case COBALT_ACPI_EVT_THERM:
+                evt->ev_data = 0;
+                for (j=0; j<cobalt_nthermals; j++) {
+                        k = cobalt_i2c_read_byte(COBALT_I2C_DEV_ADM1029,
+                                 ADM1029_TEMP_CTL(therm_map[j].sensor));
+                        if (k & ADM1029_CTL_LATCH) {
+                                evt->ev_data |= (1 << j);
+                                therm_map[j].cache = 0;
+                        }
+                }
+                break;
+
+        default:
+                return -1;
+        }
+        return 0;
+}
+#endif /* CONFIG_COBALT_ACPI */
+
+static int 
+adm1029_init(void)
+{
+
+#ifdef CONFIG_COBALT_ACPI
+        cobalt_acpi_register_evt_handler(adm1029_handler, 
+                COBALT_ACPI_EVT_THERM, NULL);
+        cobalt_acpi_register_evt_handler(adm1029_handler, 
+                COBALT_ACPI_EVT_SM_INT, NULL);
+#endif
+
+        return 0;
+}
+
+static int 
+adm1029_therm_read(struct sensor *s)
+{
+        int sensor = s->sensor;
+        int val;
+
+        val = cobalt_i2c_read_byte(COBALT_I2C_DEV_ADM1029, 
+                ADM1029_TEMP_VALUE(sensor));
+        if (val < 0) {
+                /* read failed, return the last known value */
+                return s->last_val;
+        }
+        if (val & 0x80) {
+                val -= 256;
+        }
+        val *= DEC_SCALAR;
+
+        return val;
+}
+
+static int
+adm1029_volt_read(struct sensor *s)
+{
+        int sensor = s->sensor;
+        int val;
+
+        val = cobalt_i2c_read_byte(COBALT_I2C_DEV_ADM1029, 
+                ADM1029_AIN_VALUE(sensor));
+        if (val < 0) {
+                /* read failed, return the last known value */
+                return s->last_val;
+        }
+        
+        /* already scaled by 100 */
+        val *= DEC_SCALAR/100;
+
+        return val;
+}
+
+static int
+alpine_vcore_scale(struct sensor *s, int val)
+{
+        /* the measured Vbat switch cost is negligable
+         * due to very low current through the diode */
+        return val;
+}
+
+#define VBAT_REG        0x608
+#define VBAT_BIT        0x1
+static void
+alpine_vbat_switch(struct sensor *s, int pre)
+{
+        unsigned char v = inb(VBAT_REG);
+        unsigned long j = jiffies;
+
+        if (pre) {
+                v |= VBAT_BIT;
+                /*
+                 * disable AIN0 INT# assertion before switching to
+                 * Vbat because the input is shared with Vcore and
+                 * their acceptable ranges are very different.
+                 */
+                cobalt_i2c_write_byte(COBALT_I2C_DEV_ADM1029,
+                        ADM1029_AIN_CTL(s->sensor), 0x0);
+        } else {
+                v &= ~VBAT_BIT;
+        }
+
+        outb(v, VBAT_REG);
+
+        /*
+         * wait for the round-robin monitor to complete a cycle
+         * before _and_ after toggling Vbat switch, otherwise
+         * stale data in AIN0 will trigger INT# assertion.
+         */
+        while ((jiffies - j) < HZ) {
+                /* block for ~ 1sec */
+                set_current_state(TASK_INTERRUPTIBLE);
+                schedule_timeout(HZ);
+        }
+
+        if (!pre) {
+                /*
+                 * now re-enable INT# assertion capability for AIN0
+                 * (this also clears the AIN0 fault latch at bit 7)
+                 */
+                cobalt_i2c_write_byte(COBALT_I2C_DEV_ADM1029,
+                        ADM1029_AIN_CTL(s->sensor),
+                        ADM1029_CTL_INT_OVER | ADM1029_CTL_INT_UNDER);
+        }
+}
+
+static int
+alpine_vbat_scale(struct sensor *s, int val)
+{
+        /* 
+         * The spec says 2.5V max - but empirically, 3.3V works :)
+         * The Vbat switch costs 0.3 volts
+         */
+        if (val) val += (3 * DEC_SCALAR)/10;
+
+        return val;
+}
+
+#ifdef CONFIG_PROC_FS
+static int
+sensor_write_proc(int nsensors, struct sensor *map,
+        struct file *file, const char *buf, unsigned long len, void *x)
+{
+        char *pg;
+
+        if (len > PAGE_SIZE) {
+                return -EOVERFLOW;
+        }
+
+        pg = (char *)__get_free_page(GFP_KERNEL);
+        if (!pg) {
+                return -ENOMEM;
+        }
+
+        if (copy_from_user(pg, buf, len)) {
+                free_page((unsigned long)pg);
+                return -EFAULT;
+        }
+        pg[len] = '\0';
+
+        /* format: `cache_timeout #' in seconds */
+        if (len>15 && !strncmp("cache_timeout ", pg, 14) && isdigit(*(pg+14))) {
+                unsigned long i, sec = simple_strtoul(pg+14, NULL, 0);
+                for (i=0; i<nsensors; i++)
+                        map[i].cache_timeout = sec;
+        }
+
+        free_page((unsigned long)pg);
+        return len;
+}
+
+static int
+sensor_read_proc(int nsensors, struct sensor *map,
+        char *buf, char **start, off_t pos, int len, int *eof, void *x)
+{
+        int i;
+        static int plen = 0;
+
+        down(&sensor_sem);
+
+        /* remember how big our last read was to avoid read() calling twice */
+        if (pos && pos >= plen) {
+                *eof = 1;
+                up(&sensor_sem);
+                return 0;
+        }
+
+        plen = 0;
+        for (i = 0; i < nsensors; i++) {
+                char sbuf[32];
+                if (sensor_read(&map[i], sbuf, sizeof(sbuf)))
+                        plen += sprintf(buf+plen, "%d [%s]: %s\n", i, map[i].desc, sbuf);
+        }
+
+        up(&sensor_sem);
+
+        return cobalt_gen_proc_read(buf, plen, start, pos, len, eof);
+}
+
+static int
+therm_read_proc(char *buf, char **start, off_t pos, int len, int *eof, void *x)
+{
+        return sensor_read_proc(cobalt_nthermals, therm_map,
+                buf, start, pos, len, eof, x);
+}
+static int
+therm_write_proc(struct file *file, const char *buf, unsigned long len, void *x)
+{
+        return sensor_write_proc(cobalt_nthermals, therm_map, file, buf, len, x);
+}
+
+static int
+volt_read_proc(char *buf, char **start, off_t pos, int len, int *eof, void *x)
+{
+        return sensor_read_proc(cobalt_nvoltages, volt_map,
+                buf, start, pos, len, eof, x);
+}
+static int
+volt_write_proc(struct file *file, const char *buf, unsigned long len, void *x)
+{
+        return sensor_write_proc(cobalt_nvoltages, volt_map, file, buf, len, x);
+}
+#endif /* CONFIG_PROC_FS */
+
+#endif /* CONFIG_COBALT_SENSORS */

drivers/cobalt/serialnum.c

@@ +1 @@
+/* $Id: serialnum.c,v 1.15 2001/10/23 20:15:27 thockin Exp $ */
+/*
+ *
+ *   Author: Philip Gladstone, Axent Technologies
+ *           modified for Nat Semi PC[89]7317 by asun@cobalt.com
+ *           ported to 2.4.x by thockin@sun.com
+ *           alpine serial eeprom by erik.glling@sun.com
+ *   Copyright (c) 2000  Axent Technologies, Cobalt Networks
+ *   Copyright (c) 2001  Axent Technologies, Sun Microsystems
+ *
+ *   This module interrogates the DS2401 Silicon Serial Number chip
+ *   that is attached to all x86 Cobalt systems.
+ *
+ *   It exports /proc/cobalt/hostid which is four bytes generated from of 
+ *   the id. It can be linked to /var/adm/hostid or /etc/hostid for the 
+ *   hostid command to use.
+ *
+ *   It exports /proc/cobalt/serialnumber which is the entire 64 bit value 
+ *   read back (in ascii).
+ *
+ *   For the guts of the 1 wire protocol used herein, please see the DS2401
+ *   specification.
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * This driver is SMP safe by nature. --TPH
+ */
+#include <linux/config.h>
+#if defined (CONFIG_COBALT_SERNUM) || defined(CONFIG_COBALT_SERNUM_MODULE)
+
+#include <linux/module.h>
+#include <linux/stddef.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/proc_fs.h>
+#include <linux/delay.h>
+#include <asm/uaccess.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <asm/io.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+#include <cobalt/superio.h>
+#include <cobalt/serialnum.h>
+#include <cobalt/i2c.h>
+
+#include <linux/interrupt.h>
+
+#define SN_DRIVER                       "Cobalt Networks Serial Number driver"
+#define SN_DRIVER_VMAJ          1
+#define SN_DRIVER_VMIN          6
+
+/* dependent on systype */
+static unsigned int sn_direction;
+static unsigned int sn_output;
+static unsigned int sn_input;
+static unsigned int sn_mask;
+
+/* 3k style systems */
+#define III_SN_DIRECTION        0x7d
+#define III_SN_OUTPUT           0x7e
+#define III_SN_INPUT            0x7f
+#define III_SN_MASK             0x08
+static struct pci_dev *id_dev;
+
+/* 5k style systems */
+#define V_SN_DIRECTION          (sn_io_base + 0x01)
+#define V_SN_OUTPUT             (sn_io_base + 0x00)
+#define V_SN_INPUT              (sn_io_base + 0x00)
+#define V_SN_MASK               (sn_io_base + 0x01)
+static unsigned int sn_io_base;
+
+#define SSN_SIZE        8       /* bytes */
+static char ssn_string[SSN_SIZE * 2 + 1];
+static unsigned long hostid;
+static int debug;
+#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_COBALT_OLDPROC
+static struct proc_dir_entry *proc_hostid;
+static struct proc_dir_entry *proc_serialnum;
+#endif
+static struct proc_dir_entry *proc_chostid;
+static struct proc_dir_entry *proc_cserialnum;
+#endif
+
+static int
+hostid_read(char *buf, char **start, off_t pos, int len, int *eof, void *x)
+{
+        int plen = sizeof(hostid);
+        memcpy(buf, &hostid, sizeof(hostid));
+        return cobalt_gen_proc_read(buf, plen, start, pos, len, eof);
+}
+
+static int
+serialnum_read(char *buf, char **start, off_t pos, int len, int *eof, void *x)
+{
+        int plen = sizeof(ssn_string);
+        sprintf(buf, "%s\n", ssn_string);
+        return cobalt_gen_proc_read(buf, plen, start, pos, len, eof);
+}
+
+/* set up the requisite IO bits */
+static int __init 
+io_init(void)
+{
+        unsigned char data;
+
+        if (cobt_is_3k()) {
+                /* The GPIO tied to the ID chip is on the PMU */
+                id_dev = pci_find_device(PCI_VENDOR_ID_AL, 
+                        PCI_DEVICE_ID_AL_M7101, NULL);
+                if (!id_dev) {
+                        EPRINTK("can't find PMU for serialnumber access\n");
+                        return -ENXIO;
+                }
+
+                /* Set input mode on GPIO3 */
+                pci_read_config_byte(id_dev, sn_direction, &data);
+                if (debug > 1) {
+                        WPRINTK("read of register 0x%x = 0x%x\n",
+                                sn_direction, data);
+                }
+                if (data & sn_mask) {
+                        pci_write_config_byte(id_dev, sn_direction, 
+                                data & ~sn_mask);
+                }
+
+                /* Set the output value to be 0 */
+                pci_read_config_byte(id_dev, sn_output, &data);
+                if (debug > 1) {
+                        WPRINTK("read of register 0x%x = 0x%x\n",
+                                sn_output, data);
+                }
+                if (data & sn_mask) {
+                        pci_write_config_byte(id_dev, sn_output, 
+                                data & ~sn_mask);
+                }
+        } else if (cobt_is_5k()) {
+                u16 addr;
+
+                addr = superio_ldev_base(PC87317_DEV_GPIO);
+                if (addr) {
+                        u8 val;
+
+                        sn_io_base = addr;
+
+                        /* set output value to 0 */
+                        val = inb(sn_direction);
+                        outb(val | sn_mask, sn_direction);
+                        data = inb(sn_output);
+                        if (data & sn_mask) {
+                                outb(data & ~sn_mask, sn_output);
+                        }
+                        /* set to input */
+                        outb(val & ~sn_mask, sn_direction);
+                }
+        } else {
+                return -ENXIO;
+        }
+
+        /* pick proper variables */
+        if (cobt_is_3k()) {
+                sn_direction = III_SN_DIRECTION;
+                sn_output = III_SN_OUTPUT;
+                sn_input = III_SN_INPUT;
+                sn_mask = III_SN_MASK;
+        } else if (cobt_is_5k()) {
+                sn_direction = V_SN_DIRECTION;
+                sn_output = V_SN_OUTPUT;
+                sn_input = V_SN_INPUT;
+                sn_mask = V_SN_MASK;
+        } else {
+                return -1;
+        }
+
+        /* Let things calm down */
+        udelay(500);
+        return 0;
+}
+
+/* write out a bit */
+static void __init
+io_write(int delay)
+{
+        if (cobt_is_3k()) {
+                unsigned char data;
+                /* Set output mode on GPIO3 */
+                pci_read_config_byte(id_dev, sn_direction, &data);
+                pci_write_config_byte(id_dev, sn_direction, data | sn_mask);
+                udelay(delay);
+
+                /* Set input mode */
+                pci_write_config_byte(id_dev, sn_direction, data & ~sn_mask);
+        } else if (cobt_is_5k()) {
+                unsigned char direction;
+
+                /* change to output and back */
+                direction = inb(sn_direction); 
+                outb(direction | sn_mask, sn_direction);
+                udelay(delay);
+                outb(direction & ~sn_mask, sn_direction);
+        }
+}
+
+/* read in a bit */
+static int __init
+io_read(void)
+{
+        unsigned char data = 0;
+
+        /* Get the input value */
+        if (cobt_is_3k()) {
+                pci_read_config_byte(id_dev, sn_input, &data);
+        } else if (cobt_is_5k()) {
+                data = inb(sn_input);
+        }
+
+        return (data & sn_mask) ? 1 : 0;
+}
+
+static void __init
+io_write_byte(unsigned char c)
+{
+        int i;
+        unsigned long flags;
+
+        local_save_flags(flags);
+
+        for (i = 0; i < 8; i++, c >>= 1) {
+                local_irq_disable();
+                if (c & 1) {
+                        /* Transmit a 1 */
+                        io_write(5);
+                        udelay(80);
+                } else {
+                        /* Transmit a 0 */
+                        io_write(80);
+                        udelay(10);
+                }
+                local_irq_restore(flags);
+        }
+}
+
+static int __init
+io_read_byte(void)
+{
+        int i;
+        int c = 0;
+        unsigned long flags;
+
+        local_save_flags(flags);
+
+        for (i = 0; i < 8; i++) {
+                local_irq_disable();
+                io_write(1);    /* Start the read */
+                udelay(2);
+                if (io_read()) {
+                        c |= 1 << i;
+                }
+                udelay(60);
+                local_irq_restore(flags);
+        }
+
+        return c;
+}
+
+static int __init
+get_ssn(unsigned char *buf)
+{
+        int i;
+        unsigned long flags;
+
+        /* 
+         * Alpine does not have a dallas chip.  Instead
+         * we read from an eprom.
+         */
+        if (cobt_is_alpine()) {
+                for (i = 0; i < 8; i++) {
+                        buf[i] = cobalt_i2c_read_byte(COBALT_I2C_DEV_AT24C02, 
+                                12 + i);
+                }
+                return 0;
+        }
+
+        /*
+         * bit-bang the Dallas 2401
+         */
+
+        local_save_flags(flags);
+        local_irq_disable();
+
+        /* Master Reset Pulse */
+        for (i = 0; i < 600; i += 30) {
+                if (io_read()) {
+                        break;
+                }
+        }
+
+        if (i >= 600) {
+                if (debug) {
+                        EPRINTK("the data line seems to be held low\n");
+                }
+                local_irq_restore(flags);
+                return -ENXIO;
+        }
+
+        io_write(600);
+
+        for (i = 0; i < 300; i += 15) {
+                udelay(15);
+                if (io_read() == 0) {
+                        /* We got a presence pulse */
+                        udelay(600);    /* Wait for things to quiet down */
+                        break;
+                }
+        }
+        local_irq_restore(flags);
+
+        if (i >= 300) {
+                if (debug)
+                        EPRINTK("no presence pulse detected\n");
+                return -ENXIO;
+        }
+
+        io_write_byte(0x33);
+
+        for (i = 0; i < 8; i++) {
+                int rc;
+
+                rc = io_read_byte();
+                if (rc < 0) {
+                        return rc;
+                }
+
+                *buf++ = rc;
+        }
+
+        return 0;
+}
+
+int __init
+cobalt_serialnum_init(void)
+{
+        unsigned char ssn[SSN_SIZE];
+        int rc;
+        int i;
+
+    printk(KERN_INFO "%s %d.%d (modified by jeff@404ster.com)\n", SN_DRIVER,SN_DRIVER_VMAJ,SN_DRIVER_VMIN);
+        /* set up for proper IO */
+        rc = io_init();
+        if (rc) {
+                return rc;
+        }
+
+        /*
+         * NOTE: the below algorithm CAN NOT be changed.  We have many systems
+         * out there registered with the serial number AS DERIVED by this
+         * algorithm.
+         */
+
+        rc = get_ssn(ssn);
+        if (rc) {
+                return rc;
+        }
+
+        /* Convert to ssn_string */
+        for (i = 7; i >= 0; i--) {
+                sprintf(ssn_string + (7 - i) * 2, "%02x", ssn[i]);
+        }
+
+        /* get four bytes for a pretty unique (not guaranteed) hostid */
+        hostid = *(unsigned long *)ssn ^ *(unsigned long *)(ssn+4);
+
+#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_COBALT_OLDPROC
+        proc_hostid = create_proc_read_entry("hostid", 0, NULL, 
+                hostid_read, NULL);
+        if (!proc_hostid) {
+                EPRINTK("can't create /proc/hostid\n");
+        }
+        proc_serialnum = create_proc_read_entry("serialnumber", 0, NULL,
+                serialnum_read, NULL);
+        if (!proc_serialnum) {
+                EPRINTK("can't create /proc/serialnumber\n");
+        }
+#endif
+        proc_chostid = create_proc_read_entry("hostid", 0, proc_cobalt, 
+                hostid_read, NULL);
+        if (!proc_chostid) {
+                EPRINTK("can't create /proc/cobalt/hostid\n");
+        }
+        proc_cserialnum = create_proc_read_entry("serialnumber", 0, 
+                proc_cobalt, serialnum_read, NULL);
+        if (!proc_cserialnum) {
+                EPRINTK("can't create /proc/cobalt/serialnumber\n");
+        }
+#endif
+
+        return 0;
+}
+
+char *
+cobalt_serialnum_get(void)
+{
+        return ssn_string;
+}
+
+unsigned long
+cobalt_hostid_get(void)
+{
+        return hostid;
+}
+
+#if defined(CONFIG_COBALT_SERNUM_MODULE)
+MODULE_PARM(debug, "i");
+
+int
+init_module(void)
+{
+        return cobalt_serialnum_init();
+}
+
+void
+cleanup_module(void)
+{
+#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_COBALT_OLDPROC
+        remove_proc_entry("hostid", NULL);
+        remove_proc_entry("serialnumber", NULL);
+#endif
+        remove_proc_entry("hostid", proc_cobalt);
+        remove_proc_entry("serialnumber", proc_cobalt);
+#endif
+}
+
+module_init(init_module);
+module_exit(cleanup_module);
+#endif /* MODULE */
+
+#endif /* CONFIG_COBALT_SERNUM */

drivers/cobalt/systype.c

@@ +1 @@
+/*
+ * $Id: systype.c,v 1.33 2002/11/04 17:54:15 thockin Exp $
+ * systype.c : routines for figuring out which Cobalt system this is
+ *
+ * Copyright 2001-2002 Sun Microsystems, Inc.
+ *
+ * By:  Tim Hockin
+ *      Adrian Sun
+ *      Duncan Laurie
+ *
+ * This driver is SMP safe by nature. --TPH
+ */
+
+#include <linux/config.h>
+
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/module.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+#include <cobalt/i2c.h>
+
+/* for easy first-pass analysis */
+#if defined(CONFIG_COBALT_GEN_III)
+int COBALT_GENERATION_III_DEFINED;
+#endif
+#if defined(CONFIG_COBALT_GEN_V)
+int COBALT_GENERATION_V_DEFINED;
+#endif
+
+cobt_sys_t cobt_type = COBT_UNINITIALIZED;
+EXPORT_SYMBOL(cobt_type);
+unsigned long cobt_rev;
+EXPORT_SYMBOL(cobt_rev);
+
+#ifdef CONFIG_PROC_FS
+static struct proc_dir_entry *proc_systype;
+#endif
+static int systype_read_proc(char *buf, char **start, off_t pos, int len,
+        int *eof, void *x);
+static char *systype_str(cobt_sys_t type);
+static unsigned long boardrev_read(void);
+
+void __init
+cobalt_boardrev_init(void)
+{
+        cobt_rev = boardrev_read();
+}
+
+int __init 
+cobalt_systype_init(void)
+{
+        cobalt_systype_probe();
+    
+#ifdef CONFIG_PROC_FS
+        proc_systype = create_proc_read_entry("systype", 0, 
+                proc_cobalt, systype_read_proc, NULL);
+        if (!proc_systype) {
+                EPRINTK("can't create /proc/cobalt/systype\n");
+        }
+#endif
+
+        if (cobt_type == COBT_UNKNOWN) {
+                printk(KERN_INFO "Cobalt system type is unknown, trouble will ensue (I can vouch for this)\n");
+                return -1;
+        } else {
+            printk(KERN_INFO "Cobalt system type is %s\n",systype_str(cobt_type));
+            return 0;
+    }
+}
+
+#if defined(CONFIG_COBALT_GEN_III)
+static cobt_sys_t
+systype_probe_3k(void)
+{
+        struct pci_dev *pdev;
+        cobt_sys_t retval = COBT_UNKNOWN;
+
+        /* board identifier for RaQ3/4 vs Qube3 is on the PMU @ 0x7f */
+        pdev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, NULL);
+        if (pdev) {
+                /* 
+                 * check to see what board we are on
+                 * ( RaQ 3, RaQ 4, Qube 3 )
+                 */
+                unsigned char val;
+
+            /* momentarily set DOGB# to input */
+                pci_read_config_byte(pdev, 0x7d, &val);
+                pci_write_config_byte(pdev, 0x7d, val & ~0x20);
+
+                /* read the GPIO register */
+                pci_read_config_byte(pdev, 0x7f, &val);
+                /* RaQ3/4 boards have DOGB (0x20) high, 
+                 * Qube3 has DOGB low */ 
+                if (val & 0x20) {
+                    retval = COBT_PACIFICA;
+                } else {
+                    retval = COBT_CARMEL;
+                }
+
+                /* change DOGB back to output */
+                pci_read_config_byte(pdev, 0x7d, &val);
+                pci_write_config_byte(pdev, 0x7d, val | 0x20);
+        }
+    
+        /* assign to this, so the compiler shuts up */
+        COBALT_GENERATION_III_DEFINED = 1;
+
+        return retval;
+}
+#else
+#define systype_probe_3k()      (COBT_UNKNOWN)
+#endif
+
+#if defined(CONFIG_COBALT_GEN_V)
+static cobt_sys_t
+systype_probe_5k(void)
+{
+        struct pci_dev *pdev;
+        cobt_sys_t retval = COBT_UNKNOWN;
+
+        /* is it a gen V ? */
+        pdev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
+                PCI_DEVICE_ID_SERVERWORKS_OSB4, NULL);
+        if (pdev) {
+                retval = COBT_MONTEREY;
+                goto out;
+        }
+
+        pdev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
+                PCI_DEVICE_ID_SERVERWORKS_CSB5, NULL);
+        if (pdev) {
+                pdev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
+                        PCI_DEVICE_ID_SERVERWORKS_LE, NULL);
+                if (pdev) {
+                        retval = COBT_ALPINE;
+                        goto out;
+                }
+        }
+
+out:
+        /* assign to this, so the compiler shuts up */
+        COBALT_GENERATION_V_DEFINED = 1;
+
+        return retval;
+}
+#else
+#define systype_probe_5k()      (COBT_UNKNOWN)
+#endif
+
+static cobt_sys_t
+systype_probe_gp(void)
+{
+        struct pci_dev *pdev;
+        cobt_sys_t retval = COBT_UNKNOWN;
+
+        /* is it a GP system? */
+        pdev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
+                PCI_DEVICE_ID_SERVERWORKS_CSB5, NULL);
+        if (pdev) {
+                pdev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
+                        PCI_DEVICE_ID_SERVERWORKS_HE, NULL);
+                if (pdev) {
+                        retval = COBT_BIGBEAR;
+                }       
+        }
+
+        return retval;
+}
+
+cobt_sys_t
+cobalt_systype_probe(void)
+{
+        static int init_done = 0;
+
+        if (init_done) {
+                return cobt_type;
+        }
+
+        /* check for 3k family systems */
+        
+        cobt_type = systype_probe_3k();
+        if (cobt_type != COBT_UNKNOWN)
+                goto out;
+
+        /* check for 5k family systems */
+        cobt_type = systype_probe_5k();
+        if (cobt_type != COBT_UNKNOWN)
+                goto out;
+
+        /* it's a GP system or unknown */
+        cobt_type = systype_probe_gp();
+
+out:
+        if (cobt_type != COBT_UNKNOWN) {
+                init_done = 1;
+        }
+
+        return cobt_type;
+}
+EXPORT_SYMBOL(cobalt_systype_probe);
+
+#ifdef CONFIG_PROC_FS
+static int 
+systype_read_proc(char *buf, char **start, off_t pos, int len,
+        int *eof, void *x)
+{
+        int plen = sprintf(buf, "%s\n", systype_str(cobt_type));
+        return cobalt_gen_proc_read(buf, plen, start, pos, len, eof);
+}
+#endif
+
+static char *
+systype_str(cobt_sys_t type)
+{
+        switch (type) {
+                case COBT_PACIFICA:
+                        return "Pacifica";
+                        break;
+                case COBT_CARMEL:
+                        return "Carmel";
+                        break;
+                case COBT_MONTEREY:
+                        return "Monterey";
+                        break;
+                case COBT_ALPINE:
+                        return "Alpine";
+                        break;
+                case COBT_BIGBEAR:
+                        return "BigBear";
+                        break;
+                case COBT_UNKNOWN:
+                default:
+                        return "unknown";
+                        break;
+        }
+}
+
+static unsigned long
+boardrev_read(void)
+{
+        unsigned long rev;
+
+        switch (cobt_type) {
+#ifdef CONFIG_COBALT_RAQ
+        case COBT_PACIFICA:
+        case COBT_CARMEL:
+                /* No usable board rev on these systems */
+                return 0;
+        case COBT_MONTEREY:
+                /*
+                 * the boardrev on monterey is strapped off of GPM[3:0]
+                 * and is read from port 0xc52
+                 */
+                return inb(0xc52);
+        case COBT_ALPINE:
+                /*
+                 * the boardrev on alpine in stored in the i2c eeprom
+                 * location 4
+                 */
+                rev = cobalt_i2c_read_byte(COBALT_I2C_DEV_AT24C02, 0x04);
+                rev |= cobalt_i2c_read_byte(COBALT_I2C_DEV_AT24C02, 0x05) << 8;
+                rev |= cobalt_i2c_read_byte(COBALT_I2C_DEV_AT24C02, 0x06) << 16;
+                rev |= cobalt_i2c_read_byte(COBALT_I2C_DEV_AT24C02, 0x07) << 24;
+                if (rev == 0xffffffff)
+                        rev = 0;
+                return rev;
+#endif
+        case COBT_BIGBEAR:
+                /* No board revs at this time */
+                return 0;
+        case COBT_UNKNOWN:
+        case COBT_UNINITIALIZED:
+                return 0;
+        }
+        return 0;
+}

drivers/cobalt/wdt.c

@@ +1 @@
+/* $Id: wdt.c,v 1.21 2002/07/02 00:38:17 asun Exp $ */
+/* 
+ * Cobalt kernel WDT timer driver
+ * Tim Hockin <thockin@cobaltnet.com>
+ * Adrian Sun <asun@cobalt.com>
+ * Chris Johnson <cjohnson@cobalt.com>
+ * Copyright (c)1999-2000, Cobalt Networks
+ * Copyright (c)2001, Sun Microsystems
+ *
+ * This should be SMP safe.  Every external function (except trigger_reboot)
+ * grabs the wdt lock.  No function in this file may call any exported
+ * function (excepting trigger_reboot).  The disable counter is an atomic, so
+ * there should be no issues there. --TPH
+ */
+#include <linux/config.h>
+
+#include <linux/module.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/config.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/msr.h>
+
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+#include <cobalt/wdt.h>
+#include <cobalt/superio.h>
+
+#define DOGB                    0x20
+#define ALI_7101_WDT            0x92
+#define ALI_WDT_ARM             0x01
+#define WDT_3K_TIMEOUT          (HZ >> 4)       /* 1/16 second */
+
+#define WDT_SUPERIO_TIMEOUT     (0x01)          /* 1 minute */
+#define WDT_5K_TIMEOUT          (HZ << 3)       /* 8 seconds */
+
+#define WDT_DRIVER                      "Cobalt Networks Watchdog Timer driver"
+#define WDT_DRIVER_VMAJ         1
+#define WDT_DRIVER_VMIN         0
+
+static unsigned long wdt_timeout;
+static unsigned long long tsc_per_wdt;
+static int initialized;
+
+#ifdef CONFIG_COBALT_WDT
+struct timer_list cobalt_wdt_timer;
+static atomic_t cobalt_wdt_disable_count = ATOMIC_INIT(0);
+static spinlock_t wdt_lock = SPIN_LOCK_UNLOCKED;
+#endif
+
+/* gen III */
+static struct pci_dev *cobalt_pmu;
+static int use_pic;
+/* gen V */
+static u16 superio_pm_port;
+
+#ifdef CONFIG_COBALT_WDT
+static void do_refresh(void);
+static void do_cleardog(void);
+static void do_disable(void);
+static void do_reenable(void);
+#endif
+        
+static unsigned long __init 
+chipset_setup(void)
+{
+        unsigned char tmp;
+        if (cobt_is_3k()) {
+                /* 
+                 * Set up the PMU for 3k boards. It has a max
+                 * of a 1 second timeout. 
+                 */
+                struct pci_dev *south;
+
+                /* PMU (1543 ver A1-E) has a built-in WDT.  Set it to 1 sec */
+                cobalt_pmu = pci_find_device(PCI_VENDOR_ID_AL, 
+                        PCI_DEVICE_ID_AL_M7101, NULL);
+                if (!cobalt_pmu) {
+                        EPRINTK("can't find south bridge for WDT\n");
+                        return 0;
+                }
+                pci_write_config_byte(cobalt_pmu, ALI_7101_WDT, 0x02);
+        
+                /* why it is called 1543, but DevId is 1533 I'll never know */
+                south = pci_find_device(PCI_VENDOR_ID_AL, 
+                        PCI_DEVICE_ID_AL_M1533, NULL);
+                if (!south) {
+                        EPRINTK("can't find south bridge for WDT\n");
+                        use_pic = 1;
+                } else {
+                        /* reversion # is here - must match ???1001?(b)
+                         * else use PIC for WDT */
+                        pci_read_config_byte(south, 0x5e, &tmp);
+                        use_pic = ((tmp & 0x1e) != 0x12);
+                }
+
+                if (!use_pic) {
+                        /* set DOGB GPIO pin to OUTPUT - JIC */
+                        pci_read_config_byte(cobalt_pmu, 0x7d, &tmp);
+                        pci_write_config_byte(cobalt_pmu, 0x7d, tmp | DOGB);
+                }
+                return WDT_3K_TIMEOUT;
+        } else if (cobt_is_monterey()) {
+                /* 
+                 * Set up the Nat. Semi SuperI/O for XTR. It has a 
+                 * minimum of a 1 minute timeout. 
+                 */
+        
+                /* superi/o -- select pm logical device and get base address */
+                superio_pm_port = superio_ldev_base(PC87317_DEV_PM);
+#ifdef CONFIG_COBALT_WDT
+                if (!superio_pm_port) {
+                        return 0;
+                }
+                outb(PC87317_PMDEV_WDTO, superio_pm_port);
+                outb(WDT_SUPERIO_TIMEOUT, superio_pm_port + 1); 
+#endif
+                return WDT_5K_TIMEOUT;
+        } else if (cobt_is_alpine()) {
+                /* 
+                 * Set up the Nat. Semi SuperI/O for Alpine. It has a 
+                 * minimum of a 1 minute timeout. 
+                 */
+        
+                /* superi/o -- select pm logical device and get base address */
+                superio_pm_port = superio_ldev_base(PC87417_DEV_SWC);
+#ifdef CONFIG_COBALT_WDT
+                if (!superio_pm_port) {
+                        return 0;
+                }
+                /* select the WDT bank of SWC */
+                outb(PC87417_SWCBANK_WDT, superio_pm_port+PC87417_SWC_BANK);
+                /* clear event config... */
+                tmp = inb(superio_pm_port+PC87417_WDT_CONFIG);
+                outb(0, superio_pm_port+PC87417_WDT_CONFIG);
+                /* ...before mucking with timeout */
+                outb(WDT_SUPERIO_TIMEOUT, 
+                        superio_pm_port+PC87417_WDT_TIMEOUT); 
+                /* restore the event config */
+                outb(tmp, superio_pm_port+PC87417_WDT_CONFIG);
+                /* enable the counter */
+                outb(1, superio_pm_port+PC87417_WDT_CONTROL);
+#endif
+                return WDT_5K_TIMEOUT;
+        }
+
+        return 0;
+}
+
+void __init 
+cobalt_wdt_init(void)
+{
+        unsigned long long start, stop;
+
+    printk(KERN_INFO "%s %d.%d (modified by jeff@404ster.com)\n", WDT_DRIVER,WDT_DRIVER_VMAJ,WDT_DRIVER_VMIN);
+    
+        wdt_timeout = chipset_setup();
+
+        /* figure out time */
+        rdtscll(start);
+        udelay(100);
+        rdtscll(stop);
+
+        /*
+         * (int) (stop - start) * 10 == tsc per msec
+         * 1000 / HZ == msec per tick
+         * wdt_timeout == ticks per watchdog rearm
+         */
+        tsc_per_wdt = (int) (stop - start) * 10 * (1000 * wdt_timeout / HZ);
+
+#ifdef CONFIG_COBALT_WDT
+        /* set the timer going */
+        init_timer(&cobalt_wdt_timer);
+        cobalt_wdt_timer.function = cobalt_wdt_refresh;
+        cobalt_wdt_timer.data = 1;
+        cobalt_wdt_timer.expires = jiffies + wdt_timeout;
+        add_timer(&cobalt_wdt_timer);
+
+        /* the first timer tick will set it going */
+
+        if (cobt_is_3k() && use_pic) {
+                WPRINTK("Cobalt WDT - old board, using PIC controller\n");
+        }
+#endif /* CONFIG_COBALT_WDT */
+
+        initialized = 1;
+}
+
+static inline void
+hw_disable(void)
+{
+        if (cobt_is_3k()) {
+                char tmp;
+                /* read the value, disable (reset) WDT */
+                pci_read_config_byte(cobalt_pmu, ALI_7101_WDT, &tmp);
+                pci_write_config_byte(cobalt_pmu, ALI_7101_WDT, 
+                        (tmp & ~ALI_WDT_ARM));
+        } else if (cobt_is_monterey()) {
+                outb(PC87317_PMDEV_WDTO, superio_pm_port);
+                outb(0, superio_pm_port + 1);
+        } else if (cobt_is_alpine()) {
+                unsigned char tmp;
+                /* select the WDT bank of SWC */
+                outb(PC87417_SWCBANK_WDT, superio_pm_port + PC87417_SWC_BANK);
+                /* clear event config before mucking with timeout */
+                tmp = inb(superio_pm_port + PC87417_WDT_CONFIG);
+                outb(0, superio_pm_port + PC87417_WDT_CONFIG);
+                /* 
+                 * Disable it by setting a 0 time-out.
+                 * The spec says 00h is reserved, but NSC confirms this is the
+                 * way to disable the device.
+                 */
+                outb(0, superio_pm_port + PC87417_WDT_TIMEOUT);
+                /* restore the event config */
+                outb(tmp, superio_pm_port + PC87417_WDT_CONFIG);
+        }
+}
+
+static inline void
+hw_enable(void)
+{
+        if (cobt_is_3k()) {
+                unsigned char tmp;
+                /* read the value, disable (reset) WDT, enable WDT */
+                pci_read_config_byte(cobalt_pmu, ALI_7101_WDT, &tmp);
+                pci_write_config_byte(cobalt_pmu, ALI_7101_WDT, 
+                        (tmp | ALI_WDT_ARM));
+                if (use_pic) {
+                        /* transition GPIO 5 (DOGB) to arm/clear timer */
+                        pci_read_config_byte(cobalt_pmu, 0x7e, &tmp);
+                        pci_write_config_byte(cobalt_pmu, 0x7e, tmp ^ DOGB);
+                }
+        } else if (cobt_is_monterey()) {
+                outb(PC87317_PMDEV_WDTO, superio_pm_port);
+                outb(WDT_SUPERIO_TIMEOUT, superio_pm_port + 1);
+        } else if (cobt_is_alpine()) {
+                unsigned char tmp;
+                /* select the WDT bank of SWC */
+                outb(PC87417_SWCBANK_WDT, superio_pm_port + PC87417_SWC_BANK);
+                /* clear event config before mucking with timeout */
+                tmp = inb(superio_pm_port + PC87417_WDT_CONFIG);
+                outb(0, superio_pm_port + PC87417_WDT_CONFIG);
+                /* enable and refresh the timer */
+                outb(WDT_SUPERIO_TIMEOUT, 
+                        superio_pm_port + PC87417_WDT_TIMEOUT);
+                outb(0x80, superio_pm_port + PC87417_WDT_CONTROL);
+                /* restore event config */
+                outb(tmp, superio_pm_port + PC87417_WDT_CONFIG);
+        }
+}
+
+#ifdef CONFIG_COBALT_WDT
+static void
+do_refresh(void)
+{
+        if (!initialized) {
+                return;
+        }
+
+        do_cleardog();
+        
+        /* re-arm the timer - this is locked in mod_timer() */
+        mod_timer(&cobalt_wdt_timer, jiffies + wdt_timeout);
+}
+#endif
+
+EXPORT_SYMBOL(cobalt_wdt_refresh);
+void 
+cobalt_wdt_refresh(unsigned long refresh_timer)
+{
+#ifdef CONFIG_COBALT_WDT
+        unsigned long flags;
+        spin_lock_irqsave(&wdt_lock, flags);
+        do_refresh();
+        spin_unlock_irqrestore(&wdt_lock, flags);
+#endif
+}
+
+#ifdef CONFIG_COBALT_WDT
+static void
+do_cleardog(void)
+{
+        static unsigned long long last_tsc = 0;
+        unsigned long long tmp;
+
+        if (!initialized || (atomic_read(&cobalt_wdt_disable_count) > 0)) {
+                return;
+        }
+
+        /* only bother if we're due */
+        rdtscll(tmp);
+        if ((int)(tmp - last_tsc) < tsc_per_wdt) {
+                return;
+        }
+
+        if (cobt_is_3k() || cobt_is_monterey()) {
+                /* this is how we re-start the clock */
+                hw_disable();
+                hw_enable();
+        } else if (cobt_is_alpine()) {
+                /* select the WDT bank of SWC */
+                outb(PC87417_SWCBANK_WDT, superio_pm_port + PC87417_SWC_BANK);
+                /* refresh the timer */
+                outb(0x80, superio_pm_port + PC87417_WDT_CONTROL);
+        }
+
+        rdtscll(last_tsc);
+}
+#endif
+
+EXPORT_SYMBOL(cobalt_wdt_cleardog);
+void 
+cobalt_wdt_cleardog(void)
+{
+#ifdef CONFIG_COBALT_WDT
+        unsigned long flags;
+
+        spin_lock_irqsave(&wdt_lock, flags);
+        do_cleardog();
+        spin_unlock_irqrestore(&wdt_lock, flags);
+#endif
+}
+
+/* 
+ * this is called from machine_restart. it should not be used on
+ * 5k machines. 
+ */
+EXPORT_SYMBOL(cobalt_wdt_trigger_reboot);
+void 
+cobalt_wdt_trigger_reboot(void)
+{
+        if (cobt_is_3k()) {
+                if (!cobalt_pmu) {
+                        WPRINTK("no PMU found!\n");
+                        WPRINTK("reboot not possible!\n");
+                        return;
+                }
+
+#ifdef CONFIG_COBALT_WDT
+                /* stop feeding it */
+                del_timer_sync(&cobalt_wdt_timer);
+#endif
+
+                /* kiss your rear goodbye... */
+                initialized = 0;
+                hw_disable();
+                hw_enable();
+        }
+}
+
+#ifdef CONFIG_COBALT_WDT
+static void
+do_disable(void)
+{
+        if (!initialized) {
+                return;
+        }
+
+        if (atomic_read(&cobalt_wdt_disable_count) == 0) {
+                atomic_inc(&cobalt_wdt_disable_count);
+                del_timer_sync(&cobalt_wdt_timer);
+                hw_disable();
+        }
+}
+#endif
+
+EXPORT_SYMBOL(cobalt_wdt_disable);
+void 
+cobalt_wdt_disable(void)
+{
+#ifdef CONFIG_COBALT_WDT
+        unsigned long flags;
+
+        if (cobt_is_3k() && use_pic) {
+                WPRINTK("in PIC mode - cannot disable\n");
+                return;
+        }
+
+        spin_lock_irqsave(&wdt_lock, flags);
+        do_disable();
+        spin_unlock_irqrestore(&wdt_lock, flags);
+#endif
+}
+
+#ifdef CONFIG_COBALT_WDT
+static void
+do_reenable(void)
+{
+        int dcnt;
+
+        if (!initialized) { 
+                return;
+        }
+
+        atomic_dec(&cobalt_wdt_disable_count);
+        dcnt = atomic_read(&cobalt_wdt_disable_count);
+
+        if (dcnt == 0) {
+                do_refresh();
+        } else if (dcnt < 0) {
+                WPRINTK("too many enables\n");
+                atomic_set(&cobalt_wdt_disable_count, 0);
+        }
+}
+#endif
+
+
+EXPORT_SYMBOL(cobalt_wdt_reenable);
+void 
+cobalt_wdt_reenable(void)
+{
+#ifdef CONFIG_COBALT_WDT
+        unsigned long flags;
+
+        spin_lock_irqsave(&wdt_lock, flags);
+        do_reenable();
+        spin_unlock_irqrestore(&wdt_lock, flags);
+#endif
+}

drivers/net/Kconfig

@@ -1527 +1527 @@
           <file:Documentation/networking/net-modules.txt>.  The module
           will be called e100.
 
+config E100_IGNORE_CSUM
+        bool "Ignore bad EEPROM checksum"
+        depends on E100 && EXPERIMENTAL && !CLEAN_COMPILE
+        help
+          This option tells the e100 driver to ignore bad EEPROM checksums.
+          Usually this is a bad idea, as an incorrect checksum can indicate a
+          serious issue with the network card.
+          
+          If unsure, say N.
+
 config LNE390
         tristate "Mylex EISA LNE390A/B support (EXPERIMENTAL)"
         depends on NET_PCI && EISA && EXPERIMENTAL

drivers/net/e100.c

@@ -162 +162 @@
 #define DRV_VERSION             "3.5.17-k2"DRV_EXT
 #define DRV_DESCRIPTION         "Intel(R) PRO/100 Network Driver"
 #define DRV_COPYRIGHT           "Copyright(c) 1999-2006 Intel Corporation"
+#define DRV_MODIFIED            "Modified by <jeff@404ster.com> to ignore bad EEPROM checksums"
 #define PFX                     DRV_NAME ": "
 
 #define E100_WATCHDOG_PERIOD    (2 * HZ)
@@ -758 +759 @@
          * the sum of words should be 0xBABA */
         checksum = le16_to_cpu(0xBABA - checksum);
         if(checksum != nic->eeprom[nic->eeprom_wc - 1]) {
+#if defined(CONFIG_E100_IGNORE_CSUM)
+DPRINTK(PROBE, ERR, "EEPROM corrupted, ignoring and moving on\n");
+DPRINTK(PROBE, ERR, "    Caclulated Checksum: %X\n",checksum);
+DPRINTK(PROBE, ERR, "    EEPROM Checksum:     %X\n",nic->eeprom[nic->eeprom_wc - 1]);
+#else
                 DPRINTK(PROBE, ERR, "EEPROM corrupted\n");
                 if (!eeprom_bad_csum_allow)
                         return -EAGAIN;
+#endif
         }
 
         return 0;
@@ -2876 +2883 @@
         if(((1 << debug) - 1) & NETIF_MSG_DRV) {
                 printk(KERN_INFO PFX "%s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
                 printk(KERN_INFO PFX "%s\n", DRV_COPYRIGHT);
+#if defined(CONFIG_E100_IGNORE_CSUM)
+                printk(KERN_INFO PFX "%s\n", DRV_MODIFIED);
+#endif
         }
         return pci_register_driver(&e100_driver);
 }

include/cobalt/acpi.h

@@ +1 @@
+/*
+ * $Id: cobalt-acpi.h,v 1.7 2001/10/27 07:03:31 erik Exp $
+ * cobalt-acpi.h : support for ACPI interrupts
+ *
+ * Copyright 2000 Cobalt Networks, Inc.
+ * Copyright 2001 Sun Microsystems, Inc.
+ */
+#ifndef COBALT_ACPI_H
+#define COBALT_ACPI_H
+
+#define SERVERWORKS_ACPI_INDEX_PORT     0x0cd6
+#define SERVERWORKS_ACPI_DATA_PORT      0x0cd7
+
+
+typedef struct
+{
+    u16 hw_type;
+    u16 ev_type;
+    u32 ev_data;
+} cobalt_acpi_evt;
+
+enum __cobalt_acpi_hw_types
+{
+    COBALT_ACPI_HW_ANY = 0x0000,
+    COBALT_ACPI_HW_OSB4 = 0x0001,
+    COBALT_ACPI_HW_CSB5 = 0x0002,
+    COBALT_ACPI_HW_PC8731X = 0x0003,
+    COBALT_ACPI_HW_PC8741X = 0x0004,
+};
+
+enum __cobalt_acpi_event_types
+{
+    COBALT_ACPI_EVT_NONE = 0x0000,
+    COBALT_ACPI_EVT_TMR = 0x0001, /* Timer Event */
+    COBALT_ACPI_EVT_BM = 0x00002, /* Bus Master Event */
+    COBALT_ACPI_EVT_GBL = 0x0003, /* BIOS Global Lock release */
+    COBALT_ACPI_EVT_PWRBTN = 0x0004, /* Power Button press */
+    COBALT_ACPI_EVT_SLPBTN = 0x0005, /* Sleep Button press */
+    COBALT_ACPI_EVT_RTC = 0x0006, /* RTC Alarm */
+    COBALT_ACPI_EVT_WAK = 0x0007, /* Wake event */
+    COBALT_ACPI_EVT_GPE = 0x0008, /* General Purpose Event (ev_data = gpe number) */
+
+        /* events greater than 0x7fff are symbolic events */
+    COBALT_ACPI_EVT_SLED = 0x8000, /* Sled removal */
+    COBALT_ACPI_EVT_THERM = 0x8001, /* Thermal trip */
+    COBALT_ACPI_EVT_FAN = 0x8002, /* Fan Down */
+    COBALT_ACPI_EVT_SM_INT = 0x8003, /* System Monitor Interrupt */
+    COBALT_ACPI_EVT_VOLT = 0x8004, /* System Monitor Interrupt */
+    
+};
+
+typedef int (* cobalt_acpi_hw_handler)( int irq, void *dev_id, struct pt_regs *regs, void * data );
+typedef int (* cobalt_acpi_enable_handler)( u16 ev_type, u16 ev_data, int en, void *data );
+typedef int (* cobalt_acpi_evt_handler)( cobalt_acpi_evt *evt, void * data );
+
+
+extern int cobalt_acpi_register_hw_handler( u16 hw_type,
+                                            cobalt_acpi_hw_handler hw_handler, 
+                                            cobalt_acpi_enable_handler en_handler,
+                                            void *data );
+extern int cobalt_acpi_unregister_hw_handler( cobalt_acpi_hw_handler handler );
+
+extern int cobalt_acpi_register_trans_table( u16 hw_type, u16 table_len, u16 *table ); 
+extern int cobalt_acpi_unregister_trans_table( u16 hw_type );
+
+extern int cobalt_acpi_register_evt_handler( cobalt_acpi_evt_handler handler, 
+                                             u16 evt_type,
+                                             void *data );
+extern int cobalt_acpi_unregister_evt_handler( cobalt_acpi_evt_handler handler );
+
+extern int cobalt_acpi_post_event( cobalt_acpi_evt evt );
+
+#ifdef CONFIG_COBALT_EMU_ACPI
+int cobalt_acpi_generate_proc_evt( cobalt_acpi_evt * evt );
+#else
+#define cobalt_acpi_generate_proc_evt( a )
+#endif
+
+    
+
+
+#endif /* COBALT_ACPI_H */

include/cobalt/cobalt.h

@@ +1 @@
+/* $Id: cobalt.h,v 1.16 2002/11/04 17:54:15 thockin Exp $ */
+/* Copyright 2001 Sun Microsystems, Inc. */
+#include <linux/config.h>
+#if !defined(COBALT_H) && defined(CONFIG_COBALT_RAQ)
+#define COBALT_H
+
+/* generational support - for easy checking */
+#ifdef CONFIG_COBALT_GEN_III
+# define COBT_SUPPORT_GEN_III 1
+#else
+# define COBT_SUPPORT_GEN_III 0
+#endif
+
+#ifdef CONFIG_COBALT_GEN_V
+# define COBT_SUPPORT_GEN_V 1
+#else
+# define COBT_SUPPORT_GEN_V 0
+#endif
+
+/* macros for consistent errors/warnings */
+#define EPRINTK(fmt, args...) \
+        printk(KERN_ERR "%s:%s: " fmt , __FILE__ , __FUNCTION__ , ##args)
+
+#define WPRINTK(fmt, args...) \
+        printk(KERN_WARNING "%s:%s: " fmt , __FILE__ , __FUNCTION__ , ##args)
+
+/* the root of /proc/cobalt */
+extern struct proc_dir_entry *proc_cobalt;
+int cobalt_gen_proc_read(char *buf, int plen, char **start, off_t pos, 
+        int len, int *eof);
+
+//#ifdef CONFIG_COBALT_RAQ
+/* keep this test up to date with new generation defines */
+#if !defined(CONFIG_COBALT_GEN_III) && !defined(CONFIG_COBALT_GEN_V)
+/* barf if no generation has been selected */
+#error You asked for CONFIG_COBALT_RAQ, but no CONFIG_COBALT_GEN_* !
+#endif
+
+/* accesses for CMOS */
+#include <linux/mc146818rtc.h>
+#include <cobalt/nvram.h>
+
+static inline int
+cobalt_cmos_read_flag(const unsigned int flag)
+{
+        unsigned long flags;
+        u16 cmosfl;
+
+        spin_lock_irqsave(&rtc_lock, flags);
+        cmosfl = CMOS_READ(COBT_CMOS_FLAG_BYTE_0) << 8;
+        cmosfl |= CMOS_READ(COBT_CMOS_FLAG_BYTE_1);
+        spin_unlock_irqrestore(&rtc_lock, flags);
+
+        return (cmosfl & flag) ? 1 : 0;
+}
+//#endif /* CONFIG_COBALT_RAQ */
+
+#endif /* !defined(COBALT_H) && defined(CONFIG_COBALT_RAQ) */

include/cobalt/i2c.h

@@ +1 @@
+/*
+ * $Id: cobalt-i2c.h,v 1.3 2001/08/22 05:48:04 asun Exp $
+ * cobalt-i2c.h : I2C support for LCD/Front Panel
+ *
+ * Copyright 2000 Cobalt Networks, Inc.
+ * Copyright 2001 Sun Microsystems, Inc.
+ */
+#ifndef COBALT_I2C_H
+#define COBALT_I2C_H
+
+#include <linux/types.h>
+#include <cobalt/cobalt.h>
+
+#define COBALT_I2C_DEV_LED_I            0x40
+#define COBALT_I2C_DEV_LED_II           0x42
+#define COBALT_I2C_DEV_LCD_DATA         0x4a
+#define COBALT_I2C_DEV_LCD_INST         0x48
+#define COBALT_I2C_DEV_FP_BUTTONS       0x41
+#define COBALT_I2C_DEV_DRV_SWITCH       0x45
+#define COBALT_I2C_DEV_RULER            0x46
+#define COBALT_I2C_DEV_LM77             0x90
+#define COBALT_I2C_DEV_ADM1029          0x5e
+#define COBALT_I2C_DEV_AT24C02          0xae
+
+#define COBALT_I2C_READ                 0x01
+#define COBALT_I2C_WRITE                0x00
+
+extern int cobalt_i2c_reset(void);
+extern int cobalt_i2c_read_byte(const int dev, const int index);
+extern int cobalt_i2c_read_word(const int dev, const int index);
+extern int cobalt_i2c_read_block(const int dev, const int index,
+                                 unsigned char *data, int count);
+extern int cobalt_i2c_write_byte(const int dev, const int index,
+                                 const u8 val);
+extern int cobalt_i2c_write_word(const int dev, const int index,
+                                 const u16 val);
+extern int cobalt_i2c_write_block(const int dev, const int index,
+                                  unsigned char *data, int count);
+
+#endif /* COBALT_I2C_H */

include/cobalt/lcd.h

@@ +1 @@
+/*
+ * $Id: cobalt-lcd.h,v 1.12 2001/11/30 05:38:46 asun Exp $
+ * cobalt-lcd.h : some useful defines for the Cobalt LCD driver
+ *              (must be useable from both kernel and user space)
+ *
+ * Copyright 1996-2000 Cobalt Networks, Inc.
+ * Copyright 2001 Sun Microsystems, Inc.
+ *
+ * By:  Andrew Bose     
+ *      Timothy Stonis (x86 version)
+ *      Tim Hockin
+ *      Adrian Sun
+ *      Erik Gilling
+ *      Duncan Laurie
+ */
+#ifndef COBALT_LCD_H
+#define COBALT_LCD_H
+
+#ifdef __KERNEL__
+#include <cobalt/cobalt.h>
+#endif
+#include <cobalt/led.h>
+
+#define COBALT_LCD_LINELEN      40
+struct lcd_display {
+        unsigned long buttons;
+        int size1;
+        int size2;
+        unsigned char line1[COBALT_LCD_LINELEN];
+        unsigned char line2[COBALT_LCD_LINELEN];
+        unsigned char cursor_address;
+        unsigned char character;
+        unsigned char leds;
+        unsigned char *RomImage;
+};
+
+/* different lcd types */
+#define LCD_TYPE_UNKNOWN        0
+#define LCD_TYPE_PARALLEL       1
+#define LCD_TYPE_PARALLEL_B     2
+#define LCD_TYPE_I2C            3
+
+/* Function command codes for ioctl */
+#define LCD_On                  1
+#define LCD_Off                 2
+#define LCD_Clear               3
+#define LCD_Reset               4
+#define LCD_Cursor_Left         5
+#define LCD_Cursor_Right        6
+#define LCD_Disp_Left           7
+#define LCD_Disp_Right          8
+#define LCD_Get_Cursor          9
+#define LCD_Set_Cursor          10
+#define LCD_Home                11
+#define LCD_Read                12              
+#define LCD_Write               13      
+#define LCD_Cursor_Off          14
+#define LCD_Cursor_On           15
+#define LCD_Get_Cursor_Pos      16
+#define LCD_Set_Cursor_Pos      17
+#define LCD_Blink_Off           18
+#define LCD_Raw_Inst            19
+#define LCD_Raw_Data            20
+#define LCD_Type                21
+
+/* LED controls */
+#define LED_Set                 40      
+#define LED_Bit_Set             41
+#define LED_Bit_Clear           42
+#define LED32_Set               43      
+#define LED32_Bit_Set           44
+#define LED32_Bit_Clear         45
+#define LED32_Get               46      
+
+/* button ioctls */
+#define BUTTON_Read             50
+
+/* Button defs */
+#define BUTTON_Next             0x3D
+#define BUTTON_Next_B           0x7E
+#define BUTTON_Reset_B          0xFC
+#define BUTTON_NONE_B           0xFE
+#define BUTTON_Left_B           0xFA
+#define BUTTON_Right_B          0xDE
+#define BUTTON_Up_B             0xF6
+#define BUTTON_Down_B           0xEE
+#define BUTTON_Enter_B          0xBE
+
+#define BUTTON_MASK             0xFE
+
+void cobalt_lcd_start_twiddle(void);
+void cobalt_lcd_stop_twiddle(void);
+void cobalt_lcd_off(void);
+
+#endif /* COBALT_LCD_H */

include/cobalt/led.h

@@ +1 @@
+/*
+ * $Id: cobalt-led.h,v 1.7 2001/11/08 01:15:33 thockin Exp $
+ * cobalt-led.c
+ *
+ * Copyright 1996-2000 Cobalt Networks, Inc.
+ * Copyright 2001 Sun Microsystems, Inc.
+ *
+ * By:  Andrew Bose     
+ *      Timothy Stonis (x86 version)
+ *      Tim Hockin
+ *      Adrian Sun
+ *      Erik Gilling
+ *      Duncan Laurie
+ */
+#ifndef COBALT_LED_H
+#define COBALT_LED_H
+
+/* the set of all leds available on Cobalt systems */
+#define LED_SHUTDOWN            (1 << 0)
+#define LED_WEBLIGHT            (1 << 1)
+#define LED_COBALTLOGO          (1 << 2)
+#define LED_ETH0_TXRX           (1 << 3)
+#define LED_ETH0_LINK           (1 << 4)
+#define LED_ETH1_TXRX           (1 << 5)
+#define LED_ETH1_LINK           (1 << 6)
+#define LED_DISK0               (1 << 7)
+#define LED_DISK1               (1 << 8)
+#define LED_DISK2               (1 << 9)
+#define LED_DISK3               (1 << 10)
+#define LED_SYSFAULT            (1 << 11)
+#define LED_MONTEREY_UNUSED0    (1 << 12)
+#define LED_MONTEREY_UNUSED1    (1 << 13)
+/* LED_MONTEREY_UNUSED2 is below */
+#define LED_HEART               LED_MONTEREY_UNUSED0
+#define LED_SPARE               LED_MONTEREY_UNUSED1
+#define LED_SLED0               (1 << 14)
+#define LED_SLED1               (1 << 15)
+#define LED_SLED2               (1 << 16)
+#define LED_SLED3               (1 << 17)
+#define LED_MONTEREY_UNUSED2    (1 << 18)
+#define LED_SPARE2              LED_MONTEREY_UNUSED2
+
+#ifdef __KERNEL__
+
+extern void cobalt_led_set(const unsigned int leds);
+extern void cobalt_led_set_bits(const unsigned int leds);
+extern void cobalt_led_clear_bits(const unsigned int leds);
+extern void cobalt_led_set_lazy(const unsigned int leds);
+extern void cobalt_led_set_bits_lazy(const unsigned int leds);
+extern void cobalt_led_clear_bits_lazy(const unsigned int leds);
+extern unsigned int cobalt_led_get(void);
+
+extern int cobalt_fpled_register(unsigned int (*fn)(void *), void *data);
+extern int cobalt_fpled_unregister(unsigned int (*fn)(void *), void *data);
+
+#endif /* __KERNEL__ */
+
+#endif /* COBALT_LED_H */
+

include/cobalt/misc.h

@@ +1 @@
+/* $Id: cobalt-misc.h,v 1.1 2001/04/04 03:36:43 thockin Exp $ */
+/* Copyright 2001 Sun Microsystems, Inc. */
+#ifndef COBALT_MISC_H
+#define COBALT_MISC_H
+
+void cobalt_flush(void);
+void cobalt_nmi(unsigned char reason, struct pt_regs *regs);
+void cobalt_restart(void);
+void cobalt_halt(void);
+void cobalt_power_off(void);
+
+#endif

include/cobalt/net.h

@@ +1 @@
+/* $Id: cobalt-net.h,v 1.3 2002/10/25 01:02:42 thockin Exp $ */
+/* Copyright 2001 Sun Microsystems, Inc. */
+#ifndef COBALT_NET_H
+#define COBALT_NET_H
+
+#include <linux/netdevice.h>
+#include <linux/config.h>
+
+void cobalt_net_register(struct net_device *ndev);
+void cobalt_net_unregister(struct net_device *ndev);
+
+#endif

include/cobalt/nvram.h

@@ +1 @@
+/*
+ * $Id: cobalt-nvram.h,v 1.21 2002/11/02 00:57:06 thockin Exp $
+ * cobalt-nvram.h : defines for the various fields in the cobalt NVRAM
+ *
+ * Copyright 2001 Sun Microsystems, Inc.
+ */
+
+#ifndef COBALT_NVRAM_H
+#define COBALT_NVRAM_H
+
+#include <linux/nvram.h>
+
+#define COBT_CMOS_INFO_MAX              0x7f    /* top address allowed */
+#define COBT_CMOS_BIOS_DRIVE_INFO       0x12    /* drive info would go here */
+
+#define COBT_CMOS_CKS_START             NVRAM_OFFSET(0x0e)
+#define COBT_CMOS_CKS_END               NVRAM_OFFSET(0x7f)
+
+/* flag bytes - 16 flags for now, leave room for more */
+#define COBT_CMOS_FLAG_BYTE_0           NVRAM_OFFSET(0x10)
+#define COBT_CMOS_FLAG_BYTE_1           NVRAM_OFFSET(0x11)
+
+/* flags in flag bytes - up to 16 */
+#define COBT_CMOS_FLAG_MIN              0x0001
+#define COBT_CMOS_CONSOLE_FLAG          0x0001 /* console on/off */
+#define COBT_CMOS_DEBUG_FLAG            0x0002 /* ROM debug messages */
+#define COBT_CMOS_AUTO_PROMPT_FLAG      0x0004 /* boot to ROM prompt? */
+#define COBT_CMOS_CLEAN_BOOT_FLAG       0x0008 /* set by a clean shutdown */
+#define COBT_CMOS_HW_NOPROBE_FLAG       0x0010 /* go easy on the probing */
+#define COBT_CMOS_SYSFAULT_FLAG         0x0020 /* system fault detected */
+#define COBT_CMOS_OOPSPANIC_FLAG        0x0040 /* panic on oops */
+#define COBT_CMOS_DELAY_CACHE_FLAG      0x0080 /* delay cache initialization */
+#define COBT_CMOS_NOLOGO_FLAG           0x0100 /* hide "C" logo @ boot */
+#define COBT_CMOS_VERSION_FLAG          0x0200 /* the version field is valid */
+#define COBT_CMOS_FLAG_MAX              0x0200
+
+/* leave byte 0x12 blank - Linux looks for drive info here */
+
+/* CMOS structure version, valid if COBT_CMOS_VERSION_FLAG is true */
+#define COBT_CMOS_VERSION               NVRAM_OFFSET(0x13)
+#define COBT_CMOS_VER_BTOCODE           1 /* min. version needed for btocode */
+
+/* index of default boot method */
+#define COBT_CMOS_BOOT_METHOD           NVRAM_OFFSET(0x20)
+#define COBT_CMOS_BOOT_METHOD_DISK      0
+#define COBT_CMOS_BOOT_METHOD_ROM       1
+#define COBT_CMOS_BOOT_METHOD_NET       2
+#define COBT_CMOS_BOOT_METHOD_NNET      3
+#define COBT_CMOS_BOOT_METHOD_OTHER     4
+
+#define COBT_CMOS_BOOT_DEV_MIN          NVRAM_OFFSET(0x21)
+/* major #, minor # of first through fourth boot device */
+#define COBT_CMOS_BOOT_DEV0_MAJ         NVRAM_OFFSET(0x21)
+#define COBT_CMOS_BOOT_DEV0_MIN         NVRAM_OFFSET(0x22)
+#define COBT_CMOS_BOOT_DEV1_MAJ         NVRAM_OFFSET(0x23)
+#define COBT_CMOS_BOOT_DEV1_MIN         NVRAM_OFFSET(0x24)
+#define COBT_CMOS_BOOT_DEV2_MAJ         NVRAM_OFFSET(0x25)
+#define COBT_CMOS_BOOT_DEV2_MIN         NVRAM_OFFSET(0x26)
+#define COBT_CMOS_BOOT_DEV3_MAJ         NVRAM_OFFSET(0x27)
+#define COBT_CMOS_BOOT_DEV3_MIN         NVRAM_OFFSET(0x28)
+#define COBT_CMOS_BOOT_DEV_MAX          NVRAM_OFFSET(0x28)
+
+/* checksum of bytes 0xe-0x7f */
+#define COBT_CMOS_CHECKSUM              NVRAM_OFFSET(0x2e)
+
+/* running uptime counter, units of 5 minutes (32 bits =~ 41000 years) */
+#define COBT_CMOS_UPTIME_0              NVRAM_OFFSET(0x30)
+#define COBT_CMOS_UPTIME_1              NVRAM_OFFSET(0x31)
+#define COBT_CMOS_UPTIME_2              NVRAM_OFFSET(0x32)
+#define COBT_CMOS_UPTIME_3              NVRAM_OFFSET(0x33)
+
+/* count of successful boots (32 bits) */
+#define COBT_CMOS_BOOTCOUNT_0           NVRAM_OFFSET(0x38)
+#define COBT_CMOS_BOOTCOUNT_1           NVRAM_OFFSET(0x39)
+#define COBT_CMOS_BOOTCOUNT_2           NVRAM_OFFSET(0x3a)
+#define COBT_CMOS_BOOTCOUNT_3           NVRAM_OFFSET(0x3b)
+
+/* 13 bytes: system serial number, same as on the back of the system */
+#define COBT_CMOS_SYS_SERNUM_LEN        13
+#define COBT_CMOS_SYS_SERNUM_0          NVRAM_OFFSET(0x40)
+#define COBT_CMOS_SYS_SERNUM_1          NVRAM_OFFSET(0x41)
+#define COBT_CMOS_SYS_SERNUM_2          NVRAM_OFFSET(0x42)
+#define COBT_CMOS_SYS_SERNUM_3          NVRAM_OFFSET(0x43)
+#define COBT_CMOS_SYS_SERNUM_4          NVRAM_OFFSET(0x44)
+#define COBT_CMOS_SYS_SERNUM_5          NVRAM_OFFSET(0x45)
+#define COBT_CMOS_SYS_SERNUM_6          NVRAM_OFFSET(0x46)
+#define COBT_CMOS_SYS_SERNUM_7          NVRAM_OFFSET(0x47)
+#define COBT_CMOS_SYS_SERNUM_8          NVRAM_OFFSET(0x48)
+#define COBT_CMOS_SYS_SERNUM_9          NVRAM_OFFSET(0x49)
+#define COBT_CMOS_SYS_SERNUM_10         NVRAM_OFFSET(0x4a)
+#define COBT_CMOS_SYS_SERNUM_11         NVRAM_OFFSET(0x4b)
+#define COBT_CMOS_SYS_SERNUM_12         NVRAM_OFFSET(0x4c)
+/* checksum for serial num - 1 byte */
+#define COBT_CMOS_SYS_SERNUM_CSUM       NVRAM_OFFSET(0x4f)
+
+#define COBT_CMOS_ROM_REV_MAJ           NVRAM_OFFSET(0x50)
+#define COBT_CMOS_ROM_REV_MIN           NVRAM_OFFSET(0x51)
+#define COBT_CMOS_ROM_REV_REV           NVRAM_OFFSET(0x52)
+
+#define COBT_CMOS_BTO_CODE_0            NVRAM_OFFSET(0x53)
+#define COBT_CMOS_BTO_CODE_1            NVRAM_OFFSET(0x54)
+#define COBT_CMOS_BTO_CODE_2            NVRAM_OFFSET(0x55)
+#define COBT_CMOS_BTO_CODE_3            NVRAM_OFFSET(0x56)
+
+#define COBT_CMOS_BTO_IP_CSUM           NVRAM_OFFSET(0x57)
+#define COBT_CMOS_BTO_IP_0              NVRAM_OFFSET(0x58)
+#define COBT_CMOS_BTO_IP_1              NVRAM_OFFSET(0x59)
+#define COBT_CMOS_BTO_IP_2              NVRAM_OFFSET(0x5a)
+#define COBT_CMOS_BTO_IP_3              NVRAM_OFFSET(0x5b)
+
+/* byte for load/run methods */
+#define COBT_CMOS_BOOT_TYPE             NVRAM_OFFSET(0x5c)
+#define COBT_CMOS_BOOT_KERN_DEV         0x01 /* use kernel on major/minor */
+#define COBT_CMOS_BOOT_KERN_ROM         0x02 /* use rom kernel */
+#define COBT_CMOS_BOOT_KERN_NET         0x03 /* use net kernel */
+#define COBT_CMOS_BOOT_KERN_MASK        0x0f /* mask for above */
+
+#define COBT_CMOS_BOOT_FS_DEV           0x10 /* use major/minor number dev */
+#define COBT_CMOS_BOOT_FS_NET           0x30 /* use net fs */
+#define COBT_CMOS_BOOT_FS_MASK          0xf0 /* mask for above */
+
+/* HA mode we're in (Twin Peaks) */
+#define COBT_CMOS_HA_MODE               NVRAM_OFFSET(0x62)
+
+#endif /* COBALT_NVRAM_H */

include/cobalt/ruler.h

@@ +1 @@
+/* $Id: cobalt-ruler.h,v 1.4 2001/06/08 20:46:44 thockin Exp $ */
+/* Copyright 2001 Sun Microsystems, Inc. */
+#ifndef COBALT_RULER_H
+#define COBALT_RULER_H
+
+#include <linux/ide.h>
+
+void cobalt_ruler_register(ide_drive_t *hwif);
+void cobalt_ruler_unregister(ide_drive_t *hwif);
+
+//typedef int (*cob_busproc_t) (struct hwif_s *, int);
+
+//int *cob_busproc_t (ide_drive_t *, int);
+
+#endif

include/cobalt/sensors.h

@@ +1 @@
+/* $Id: cobalt-sensors.h,v 1.2 2001/09/25 18:10:29 thockin Exp $ */
+/* Copyright 2001 Sun Microsystems, Inc. */
+#ifndef COBALT_SENSORS_H
+#define COBALT_SENSORS_H
+
+#include <cobalt/cobalt.h>
+
+extern unsigned int cobalt_nthermals;
+extern unsigned int cobalt_nvoltages;
+
+/* return NULL if the sensor doesn't exist, fill buf if it does */
+char *__cobalt_thermal_read(unsigned int sensor, char *buf, int len);
+char *__cobalt_voltage_read(unsigned int sensor, char *buf, int len);
+
+static inline char *
+cobalt_thermal_read(unsigned int sensor)
+{
+        char buf[32];
+        return __cobalt_thermal_read(sensor, buf, sizeof(buf)-1);
+}
+
+static inline char *
+cobalt_voltage_read(unsigned int sensor)
+{
+        char buf[32];
+        return __cobalt_voltage_read(sensor, buf, sizeof(buf)-1);
+}
+
+#endif

include/cobalt/serialnum.h

@@ +1 @@
+/*
+ * $Id: cobalt-serialnum.h,v 1.1 2001/03/07 01:58:24 thockin Exp $
+ * cobalt-serialnum.h : access to the DS2401 serial number
+ *
+ * Copyright 2000 Cobalt Networks, Inc.
+ * Copyright 2001 Sun Microsystems, Inc.
+ */
+#ifndef COBALT_SERIALNUM_H
+#define COBALT_SERIALNUM_H
+
+#include <cobalt/cobalt.h>
+
+char *cobalt_serialnum_get(void);
+unsigned long cobalt_hostid_get(void);
+
+#endif /* COBALT_SERIALNUM_H */

include/cobalt/superio.h

@@ +1 @@
+/*
+ * $Id: cobalt-superio.h,v 1.11 2001/11/02 12:00:03 duncan Exp $
+ * cobalt-superio.h : SuperIO support for Sun/Cobalt servers
+ *
+ * Copyright 2000 Cobalt Networks, Inc.
+ * Copyright 2001 Sun Microsystems, Inc.
+ */
+#ifndef COBALT_SUPERIO_H
+#define COBALT_SUPERIO_H
+
+#include <cobalt/cobalt.h>
+#include <cobalt/systype.h>
+
+/* the lock that protects superio accesses */
+extern spinlock_t cobalt_superio_lock;
+
+/* 
+ * The main functions of the SuperIO are accessed via index/data registers
+ * These are the same for both SuperIO chip families
+ */
+#define SUPERIO_INDEX_PORT      0x2e
+#define SUPERIO_DATA_PORT       0x2f
+
+/* 
+ * This index allows you to select a logical device 
+ */
+#define SUPERIO_LOGICAL_DEV     0x07
+
+/*
+ * Type of SUPERIO
+ */
+#define SUPERIO_SID             0x20
+
+/* 
+ * Some indices that are common to all logical devices 
+ */
+#define SUPERIO_ACTIVATE        0x30
+#define SUPERIO_ADDR_HIGH       0x60
+#define SUPERIO_ADDR_LOW        0x61
+#define SUPERIO_INTR_PIN        0x70
+#define SUPERIO_INTR_TYPE       0x71
+
+
+/* 
+ * PC87317 SuperIO is found on XTR 
+ */
+
+/*
+ * logical devices - write to LOGICAL_DEV index
+ */
+#define PC87317_DEV_RTC         0x02
+#define PC87317_DEV_GPIO        0x07
+#define PC87317_DEV_PM          0x08
+
+/* withing the PM dev, are the following indices */
+#define PC87317_PMDEV_WDTO      0x05
+#define PC87317_PMDEV_GPELO     0x0e
+#define PC87317_PMDEV_GPEHI     0x0f
+
+/* within the APC bank of RTC */
+#define PC87317_APCR1           0x40
+#define PC87317_APCR2           0x41
+#define PC87317_APCR3           0x49
+#define PC87317_APCR4           0x4a
+#define PC87317_APCR5           0x4b
+#define PC87317_APCR6           0x4c
+#define PC87317_APCR7           0x4d
+
+#define PC87317_RTC_BANK_MAIN   0
+#define PC87317_RTC_BANK_RTC    1
+#define PC87317_RTC_BANK_APC    2
+#define PC87317_RTC_CRA         0x0a
+#define PC87317_RTC_BANK_0      0x20
+#define PC87317_RTC_BANK_1      0x30
+#define PC87317_RTC_BANK_2      0x40
+
+#define PC87317_PWRBUTTON       0x01
+#define PC87317_PM1_STATUS      0x01
+
+/* offsets from GPEHI/GPELO */
+#define PC87317_GPE_GP1_STS0    0x00
+#define PC87317_GPE_GP1_STS1    0x01
+#define PC87317_GPE_GP1_STS2    0x02
+#define PC87317_GPE_GP1_STS3    0x03
+#define PC87317_GPE_GP1_EN0     0x04
+#define PC87317_GPE_GP1_EN1     0x05
+#define PC87317_GPE_GP1_EN2     0x06
+#define PC87317_GPE_GP1_EN3     0x07
+#define PC87317_GPE_GP2_EN0     0x08
+#define PC87317_GPE_SMI_CMD     0x0c
+
+/*
+ * PC87417 family is found on alpine 
+ */
+
+#define PC87417_DEV_SWC         0x4
+#define PC87417_DEV_GPIO        0x7
+#define PC87417_DEV_RTC         0x10
+
+/* registers in the SWC dev */
+#define PC87417_SWC_PWONCTL     0x9
+/*
+ * within the System Wake Control device, there are banks, write the bank you
+ * want to SWC_BANK
+ */
+#define PC87417_SWC_BANK        0xf
+#define PC87417_SWCBANK_ACPI    0x2
+#define PC87417_SWCBANK_WDT     0x3
+
+/*
+ * the SWC WDT bank has 3 main registers 
+ */
+#define PC87417_WDT_CONTROL     0x10
+#define PC87417_WDT_TIMEOUT     0x11
+#define PC87417_WDT_CONFIG      0x12
+
+/*
+ * within the SWC, two regs serve as index/data for wake-event enabling
+ */
+#define PC87417_SWC_WKEVENT     0x0
+#define PC87417_SWC_WKSTATE     0x1
+#define PC87417_SWCWKEVENT_GPIOE42 0xa
+#define PC87417_SWCWKEVENT_RTC  0x18
+
+
+/*
+ * types of superIOs
+ */
+enum superio_type_t
+{
+    SIO_TYPE_UNKNOWN,
+    SIO_TYPE_PC8731X,
+    SIO_TYPE_PC8741X,
+};
+
+
+
+#define PC8731X_SID 0xd0
+#define PC9731X_SID 0xdf
+#define PC8741X_SID 0xee
+
+static inline int superio_type( void )
+{
+    u8 reg;
+    unsigned long flags;
+    enum superio_type_t type;
+
+    spin_lock_irqsave(&cobalt_superio_lock, flags);
+
+    outb(SUPERIO_SID, SUPERIO_INDEX_PORT);
+    reg = inb( SUPERIO_DATA_PORT );
+    switch( reg )
+    {
+        case PC8731X_SID:
+        case PC9731X_SID:
+            type = SIO_TYPE_PC8731X;
+            break;
+
+        case PC8741X_SID:
+            type = SIO_TYPE_PC8741X;
+            break;
+
+        default:
+            type = SIO_TYPE_UNKNOWN;
+            break;
+    }
+
+    spin_unlock_irqrestore(&cobalt_superio_lock, flags);
+
+    return type;
+}
+
+/*
+ * stuff to make life easier
+ */
+
+/* read the base address of a particular superio logical device */
+#define superio_ldev_base(ldev)         superio_ldev_base_n(ldev, 0)
+static inline unsigned short
+superio_ldev_base_n(int ldev, int n)
+{
+        unsigned long flags;
+        unsigned short addr;
+
+        spin_lock_irqsave(&cobalt_superio_lock, flags);
+
+        /* select the logical device */
+        outb(SUPERIO_LOGICAL_DEV, SUPERIO_INDEX_PORT);
+        outb(ldev, SUPERIO_DATA_PORT);
+
+        /* read the 2-byte base address */
+        outb(SUPERIO_ADDR_HIGH+(n*2), SUPERIO_INDEX_PORT);
+        addr = inb(SUPERIO_DATA_PORT) << 8;
+        outb(SUPERIO_ADDR_LOW+(n*2), SUPERIO_INDEX_PORT);
+        addr |= inb(SUPERIO_DATA_PORT);
+
+        spin_unlock_irqrestore(&cobalt_superio_lock, flags);
+
+        return addr;
+}
+
+static inline void
+superio_set_rtc_bank(const unsigned int page)
+{
+        if (cobt_is_monterey()) {
+                unsigned char val;
+
+                val = CMOS_READ(0xa);
+                val &= ~0x70;
+                switch (page) {
+                case PC87317_RTC_BANK_MAIN:
+                        val |= 0x20;
+                        break;
+                case PC87317_RTC_BANK_RTC:
+                        val |= 0x30;
+                        break;
+                case PC87317_RTC_BANK_APC:
+                        val |= 0x40;
+                        break;
+                }
+                CMOS_WRITE(val, 0xa);
+        }
+}
+
+#endif /* COBALT_SUPERIO_H */

include/cobalt/systype.h

@@ +1 @@
+/*
+ * $Id: cobalt-systype.h,v 1.8 2002/08/08 22:46:50 carls Exp $
+ * cobalt-systype.h : figure out what Cobalt system we are on
+ *
+ * Copyright 2000 Cobalt Networks, Inc.
+ * Copyright 2001-2002 Sun Microsystems, Inc.
+ */
+#ifndef COBALT_SYSTYPE_H
+#define COBALT_SYSTYPE_H
+
+#include <cobalt/cobalt.h>
+
+typedef enum {
+        COBT_UNINITIALIZED,
+        COBT_UNKNOWN,
+        COBT_PACIFICA,
+        COBT_CARMEL,
+        COBT_MONTEREY,
+        COBT_ALPINE,
+        COBT_BIGBEAR,
+} cobt_sys_t;
+
+extern cobt_sys_t cobt_type;
+extern cobt_sys_t cobalt_systype_probe(void);
+extern unsigned long cobt_rev;
+
+/* 
+ * one test for each major board-type 
+ * COBT_SUPPORT_* from cobalt.h
+ */
+
+/* pacifica is the RaQ 3 and RaQ 4 platform */
+static inline int
+cobt_is_pacifica(void)
+{
+        if (!COBT_SUPPORT_GEN_III) {
+                return 0;
+        }
+        if (cobt_type == COBT_UNINITIALIZED) {
+                cobalt_systype_probe();
+        }
+        return (cobt_type == COBT_PACIFICA);
+}
+
+/* carmel is the Qube 3 platform */
+static inline int
+cobt_is_carmel(void)
+{
+        if (!COBT_SUPPORT_GEN_III) {
+                return 0;
+        }
+        if (cobt_type == COBT_UNINITIALIZED) {
+                cobalt_systype_probe();
+        }
+        return (cobt_type == COBT_CARMEL);
+}
+
+/* monterey is the RaQ XTR platform */
+static inline int
+cobt_is_monterey(void)
+{
+        if (!COBT_SUPPORT_GEN_V) {
+                return 0;
+        }
+        if (cobt_type == COBT_UNINITIALIZED) {
+                cobalt_systype_probe();
+        }
+        return (cobt_type == COBT_MONTEREY);
+}
+
+static inline int
+cobt_is_alpine(void)
+{
+        if (!COBT_SUPPORT_GEN_V) {
+                return 0;
+        }
+        if (cobt_type == COBT_UNINITIALIZED) {
+                cobalt_systype_probe();
+        }
+        return (cobt_type == COBT_ALPINE);
+}
+
+static inline int
+cobt_is_bigbear(void)
+{
+        if (!COBT_SUPPORT_GEN_V) {
+                return 0;
+        }
+        if (cobt_type == COBT_UNINITIALIZED) {
+                cobalt_systype_probe();
+        }
+        return (cobt_type == COBT_BIGBEAR);
+}
+
+/* one for each major generation */
+#define cobt_is_3k()     (cobt_is_pacifica() || cobt_is_carmel())
+#define cobt_is_5k()     (cobt_is_monterey() || cobt_is_alpine() || cobt_is_bigbear())
+
+#endif

include/cobalt/wdt.h

@@ +1 @@
+/* $Id: cobalt-wdt.h,v 1.1 2001/03/07 01:58:24 thockin Exp $ */
+/* Copyright 2001 Sun Microsystems, Inc. */
+#ifndef COBALT_WDT_H
+#define COBALT_WDT_H
+
+#include <cobalt/cobalt.h>
+
+void cobalt_wdt_refresh(unsigned long refresh_timer);
+void cobalt_wdt_trigger_reboot(void);
+
+void cobalt_wdt_disable(void);
+void cobalt_wdt_reenable(void);
+
+void cobalt_wdt_cleardog(void);
+
+#endif

init/main.c

@@ -681 +681 @@
  *
  * Now we can finally start doing some real work..
  */
+#ifdef CONFIG_COBALT_RAQ
+extern int cobalt_init(void);
+#endif
+
 static void __init do_basic_setup(void)
 {
         /* drivers will send hotplug events */
@@ -693 +697 @@
 #endif
 
         do_initcalls();
+        
+#ifdef CONFIG_COBALT_RAQ
+    cobalt_init();
+#endif
 }
 
 static void __init do_pre_smp_initcalls(void)