source: scripts/patches/linux-2.4.26-m68k-lfh.patch@ 76a1d35

Documentation/Configure.help

@@ -17167 +17167 @@
   say M here and read <file:Documentation/modules.txt>.  If unsure,
   say N.
 
+Amiga SFS file system support
+CONFIG_ASFS_FS
+  The Amiga Smart FileSystem (SFS) is the file system used on hard 
+  disks by Amiga(tm) and MorphOS(tm) systems.  Say Y if you want 
+  to be able to read files from an Amiga SFS partition on your hard 
+  drive.  
+
+  This file system driver is in EXPERIMENTAL state. Use it with care. 
+  Although it CANNOT destroy your data (because it is a read-only 
+  driver) it MIGHT cause a crash in some circumstances.
+
+  For more information read <file:Documentation/filesystems/asfs.txt>
+
+  This file system is also available as a module ( = code which can be
+  inserted in and removed from the running kernel whenever you want).
+  The module is called affs.o.  If you want to compile it as a module,
+  say M here and read <file:Documentation/modules.txt>.  
+
+  If unsure, say N.
+
 Apple HFS file system support
 CONFIG_HFS_FS
   If you say Y here, you will be able to mount Macintosh-formatted
@@ -23357 +23377 @@
 
   If you don't want to compile a kernel for a Sun 3x, say N.
 
+TekXpress XP2x support
+CONFIG_TEKXP
+   This option enables support for the TekXpress XP2x series of
+   X-Terminals made by Tektronix.
+   You will also want to enable 68030 support below.
+   Additional information about this port is available at
+   <http://www-users.rwth-aachen.de/Michael.Mueller4/tekxp/tekxp.html>.
+
+   If you don't want to compile a kernel for TekXpress XP2x, say N.
+
+Kernel command line
+CONFIG_BOOTCMD
+   You have to specify a kernel commandline here.
+   There will be no possiblity to change the content on run-time.
+
+Report as MVME160
+CONFIG_TEKXP_REPORT_MVME
+   Enabling this option the TekXpress X-Terminals report as
+   Motorola MVME160 in /proc/harware (if available).
+
+   Say Y, if you intend to use this kernel to install the
+   Debian/m68k Linux distribution. Otherwhise it is save to say N.
+
 Sun3x builtin serial support
 CONFIG_SUN3X_ZS
   ZS refers to a type of asynchronous serial port built in to the Sun3
@@ -23810 +23853 @@
   If you want to compile it as a module, say M here and read
   <file:Documentation/modules.txt>.
 
+TekXpress on-board Sonic support
+CONFIG_TEKSONIC
+  Say Y here if you want to use the integrated network controller of
+  the TekXpress X-Terminals. If you do not modify it it is unlikely
+  you will get Linux running without this selected.
+
+SCC2962 serial support
+CONFIG_SCC2692
+  Say Y here if you want to use the serial interfaces from user-space.
+  It is safe to say N here, if it will only be used for the output of
+  kernel messages.
+
 Support for early boot text console
 CONFIG_BOOTX_TEXT
   Say Y here to see progress messages from the boot firmware in text

Documentation/filesystems/00-INDEX

@@ -6 +6 @@
         - info and mount options for the Acorn Advanced Disc Filing System.
 affs.txt
         - info and mount options for the Amiga Fast File System.
+asfs.txt
+        - info and mount options for the Amiga Smart File System.
 befs.txt
         - info for the BeOS file system (BFS)
 bfs.txt

Documentation/filesystems/asfs.txt

@@ +1 @@
+
+Amiga SmartFileSystem, Linux implementation
+===========================================
+
+This is a simple read-only driver. It support reading files and directories.
+Symbolic links (called soft links) are not supported yet. Don't even try
+to read them.
+
+
+Mount options for the ASFS
+==========================
+
+setuid[=uid]    
+                This sets the owner of all files and directories in the file
+                system to uid or the uid of the current user, respectively.
+
+setgid[=gid]    
+                Same as above, but for gid.
+
+mode=mode       
+                Sets the mode flags to the given (octal) value. Directories 
+                will get an x permission if the corresponding r bit is set.
+                The default mode is 0444, which means all r bits are set
+                (for directories this means also that all x bits are set).
+
+
+Other information
+=================
+
+Supported block sizes are: 512, 1024, 2048 and 4096 bytes. Larger blocks
+speed up almost everything at the expense of wasted disk space. The speed
+gain above 4K seems not really worth the price, so you don't lose too
+much here, either.
+
+This file system hasn't been well tested yet. Athough it CANNOT destroy 
+your data, it MIGHT cause a crash. Sorry.
+
+This file system has been tested on Motorola PPC and Intel x86 systems.
+It SHOULD also work on Motorola 68k. It probably WON'T work on other 
+systems (especially 64bit).

arch/m68k/Makefile

@@ -119 +119 @@
 SUBDIRS := $(SUBDIRS) arch/m68k/sun3 arch/m68k/sun3/prom
 endif
 
+ifdef CONFIG_TEKXP
+CORE_FILES := $(CORE_FILES) arch/m68k/tekxp/tekxp.o
+SUBDIRS := $(SUBDIRS) arch/m68k/tekxp
+endif
+
 ifdef CONFIG_M68040
 CORE_FILES := $(CORE_FILES) arch/m68k/fpsp040/fpsp.o
 SUBDIRS := $(SUBDIRS) arch/m68k/fpsp040
@@ -172 +177 @@
         rm -f arch/m68k/kernel/m68k_defs.h arch/m68k/kernel/m68k_defs.d
 
 archmrproper:
+        rm -f arch/m68k/boot/bootstrap bootstrap
 
 archdep:

arch/m68k/boot/Makefile

@@ +1 @@
+
+ifdef CONFIG_TEKXP
+.PHONY: bootstrap
+bootstrap: boot.o
+        $(LD) -T tekxp.ld -Ttext 0x1000 -o $@ $<
+        -rm -f ../../../bootstrap
+        dd if=$@ of=../../../bootstrap bs=4096 conv=sync
+        $(STRIP) -s -o vmlinux.s ../../../vmlinux
+        cat vmlinux.s >> ../../../bootstrap
+
+boot.o: boot.S
+        $(CC) -c -o $@ -m68030 -O2 -I$(HPATH) -D__ASSEMBLY__ -DDEBUG $<
+
+endif
+

arch/m68k/boot/boot.S

@@ +1 @@
+/*
+ *  linux/arch/m68k/boot/boot.S
+ *
+ *  Copyright (C) 2002,2003 Michael Mueller <malware@t-online.de>
+ *
+ *  Parts taken from head.S.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * license. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+/*
+ * This is a wrapper to the linux kernel. Compiled as a.out binary it can be
+ * used to bootstrap the Linux kernel using the TekXpress Boot Monitor.
+ *
+ * In general it does copy the kernel image to the end of the available
+ * memory and does rearrange it to the top memory as described within the
+ * ELF header of wrapped vmlinux file.
+ *
+ * On some of the TekXpress systems there is not enough continous memory
+ * available to fit the whole kernel into. Thus this code does enable the
+ * MMU which is rather unusual.
+ */
+ 
+#include <linux/config.h>
+#include <linux/linkage.h>
+#include <linux/init.h>
+#include <asm/bootinfo.h>
+#include <asm/setup.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+
+/***********************************************************************/
+
+/*
+ *  Little helpers for defining functions
+ */
+
+#ifdef __STDC__
+#define L(name) .L##name
+#else
+#define L(name) .L/**/name
+#endif
+
+#define STACK   %a6@(stackstart)
+#define ARG0    %a6@(4)
+#define ARG1    %a6@(8)
+#define ARG2    %a6@(12)
+#define ARG3    %a6@(16)
+#define ARG4    %a6@(20)
+
+.macro  func_start      name,saveregs,stack=0
+L(\name):
+        linkw   %a6,#-\stack
+        moveml  \saveregs,%sp@-
+.set    stackstart,-\stack
+
+.macro  func_return_\name
+        moveml  %sp@+,\saveregs
+        unlk    %a6
+        rts
+.endm
+.endm
+
+.macro  func_return     name
+        func_return_\name
+.endm
+
+.macro  func_call       name
+        jbsr    L(\name)
+.endm
+
+.macro  move_stack      nr,arg1,arg2,arg3,arg4
+.if     \nr
+        move_stack      "(\nr-1)",\arg2,\arg3,\arg4
+        movel   \arg1,%sp@-
+.endif
+.endm
+
+.macro  func_define     name,nr=0
+.macro  \name   arg1,arg2,arg3,arg4
+        move_stack      \nr,\arg1,\arg2,\arg3,\arg4
+        func_call       \name
+.if     \nr
+        lea     %sp@(\nr*4),%sp
+.endif
+.endm
+.endm
+
+/***********************************************************************/
+
+/*
+ * Start of the code (not entry point!)
+ */
+.text
+ENTRY(_stext)
+
+/*
+ * This is a faked a.out Header
+ */
+.long   0x10B                   /* a.out magic number */
+.long   SYMBOL_NAME(__end) - header_end 
+                                /* size of content = size of text segment */
+.long   0
+.long   0
+.long   0
+.long   SYMBOL_NAME(__start)    /* entry point */
+.long   0
+.long   0
+header_end:
+
+/*
+ * Platform specific constants
+ */
+#define MEMSTART        0xF0000000      /* start address of CPU RAM */
+#define OPTRAMSTART     0xF4000000      /* start address of Option RAM */
+#define MEMCHUNK        0x01000000      /* spacing beetween memory chunks */
+#define MEMORY_MAP_ENTRIES      8       /* number of memory chunks */
+
+/*
+ * MMU definitions
+ */
+PAGESIZE                = 4096
+PAGESHIFT               = 12
+ROOT_TABLE_SIZE         = 128
+PTR_TABLE_SIZE          = 128
+PAGE_TABLE_SIZE         = 64
+ROOT_INDEX_SHIFT        = 25
+PTR_INDEX_SHIFT         = 18
+PAGE_INDEX_SHIFT        = 12
+
+/*
+ * Function declarations
+ */
+func_define     mmu_map,4
+func_define     mmu_get_root_table_entry,1
+func_define     mmu_get_ptr_table_entry,2
+func_define     build_memory_list
+func_define     dump_memory_list
+func_define     get_kernel_size
+func_define     get_kernel_start
+func_define     get_kernel_physical_headers
+func_define     get_kernel_entry
+
+/*
+ * Translation tables.
+ *
+ * These have to be located at the same position as within head.S. As
+ * they are references from the kernel later.
+ */
+.equ    SYMBOL_NAME(kernel_pg_dir),SYMBOL_NAME(_stext)
+.equ    SYMBOL_NAME(kernel_ptr_dir1),SYMBOL_NAME(kernel_pg_dir)+ROOT_TABLE_SIZE*4
+.equ    SYMBOL_NAME(kernel_ptr_dir2),SYMBOL_NAME(kernel_ptr_dir1)+PTR_TABLE_SIZE*4
+.equ    SYMBOL_NAME(kernel_ptr_dir3),SYMBOL_NAME(kernel_ptr_dir2)+PTR_TABLE_SIZE*4
+.equ    SYMBOL_NAME(kernel_ptr_dir4),SYMBOL_NAME(kernel_ptr_dir3)+PTR_TABLE_SIZE*4
+.equ    .,SYMBOL_NAME(_stext)+PAGESIZE /* Skip to end of page */
+
+/*
+ * Functions for debugging output
+ */
+func_define serial_init
+func_define putc,1
+func_define putn,1
+func_define puts,1
+func_define dump,2
+
+.macro  dputc   ch
+#ifdef DEBUG
+        putc    \ch
+#endif
+.endm
+
+.macro putr
+        putc    '\r'
+        putc    '\n'
+.endm
+
+.macro dputr
+#ifdef DEBUG
+        putr
+#endif
+.endm
+
+.macro dputn    nr
+#ifdef DEBUG
+        putn    \nr
+#endif
+.endm
+
+.macro  puts    string
+        .data
+.Lstr\@:
+        .asciz  "\string"
+        .previous
+        pea     %pc@(.Lstr\@)
+        func_call       puts
+        addql   #4,%sp
+.endm
+
+.macro dputs    string
+#ifdef DEBUG
+        puts    "\string"
+#endif
+.endm
+
+func_start      puts,%d0/%a0
+        movl    ARG1,%a0
+1:
+        movb    %a0@+,%d0
+        beqs    2f
+        putc    %d0
+        bras    1b
+2:
+func_return     puts
+
+func_start      putn,%d0-%d2
+        movl    ARG1,%d0
+        movl    #7,%d1
+1:
+        roll    #4,%d0
+        movl    %d0,%d2
+        andb    #15,%d2
+        addb    #'0',%d2
+        cmpb    #'9',%d2
+        jls     2f
+        addb    #'A'-('9'+1),%d2
+2:
+        putc    %d2
+        dbra    %d1,1b
+        putc    #' '
+func_return     putn
+
+func_start      putc,%d0/%a0
+        movl    #0xFF800000,%a0
+1:
+        movb    4(%a0),%d0
+        andb    #4,%d0
+        tstb    %d0
+        bne     2f
+        bra     1b
+2:
+        movl    ARG1,%d0
+        movb    %d0,12(%a0)
+func_return     putc
+
+func_start      dump,%d0/%a0
+        movl    ARG1,%a0
+        movl    ARG2,%d0
+1:
+        putn    %a0
+        putn    %a0@
+        putn    %a0@(4)
+        putn    %a0@(8)
+        putn    %a0@(12)
+        putn    %a0@(16)
+        putn    %a0@(20)
+        putn    %a0@(24)
+        putn    %a0@(28)
+        putc    #'\r'   
+        putc    #'\n'   
+        addl    #32,%a0
+        subl    #32,%d0
+        bpl     1b
+func_return     dump
+
+func_start      serial_init,%a0
+        movl    #0xFF800000,%a0         /* address of UART */
+        clrb    0x34(%a0)
+        movb    #0x80,0x10(%a0)         /* ACR: baud rate set 2 */
+        clrb    0x14(%a0)               /* reset interrupt mask */
+        movb    #0x10,8(%a0)            /* CRA: reset MR pointer */
+        movb    #0x20,8(%a0)
+        movb    #0x30,8(%a0)
+        movb    #2,(%a0)                /* 7 bits per char */
+        movb    #7,(%a0)                /* one stop bit */
+        movb    #0xBB,4(%a0)            /* 9600 baud */
+        movb    #5,8(%a0)               /* enable tx and rx */
+func_return     serial_init
+
+.macro  putc    ch
+        pea     \ch
+        func_call       putc
+        addql   #4,%sp
+.endm
+
+
+
+/*
+ * Entry into the code
+ */
+ENTRY(__start)
+
+        /* Use the first 256 byte of memory as scratch area
+         */
+        movl    #MEMSTART+0x100, %sp
+
+        /* Initialize the serial port
+         */
+        serial_init
+        dputs   "\r\nLinux@TekXP starting...\r\n"
+
+        /* Build a memory map for later usage
+         */
+        putc    'a'
+        build_memory_list
+/*      dump_memory_list        */
+
+        /* Clear the translation tables 
+         */
+        dputc   'b'
+        movl    #PAGESIZE/4-1,%d0
+        lea     %pc@(SYMBOL_NAME(kernel_pg_dir)),%a0
+1:
+        clrl    %a0@+
+        dbra    %d0,1b
+
+        /* Setup pointer tables for virtual addresses starting at 0 and
+         * the current PC.
+         * We need 4 pointer tables at maximum for 128MB.
+         * Since both memory ranges should map equal we simple use the
+         * same pointer tables for both.
+         */
+        dputc   'c'
+        lea     %pc@(SYMBOL_NAME(_stext)),%a0
+        movl    %a0,%d0
+        movl    #ROOT_INDEX_SHIFT,%d1
+        lsrl    %d1,%d0
+
+        lea     %pc@(SYMBOL_NAME(kernel_pg_dir)),%a0
+        lea     %pc@(SYMBOL_NAME(kernel_ptr_dir1)+_PAGE_TABLE+_PAGE_ACCESSED),%a1
+        movl    %a1,%a0@(%d0:l:4)
+        movl    %a1,%a0@+
+        lea     %pc@(SYMBOL_NAME(kernel_ptr_dir2)+_PAGE_TABLE+_PAGE_ACCESSED),%a1
+        movl    %a1,%a0@(%d0:l:4)
+        movl    %a1,%a0@+
+        lea     %pc@(SYMBOL_NAME(kernel_ptr_dir3)+_PAGE_TABLE+_PAGE_ACCESSED),%a1
+        movl    %a1,%a0@(%d0:l:4)
+        movl    %a1,%a0@+
+        lea     %pc@(SYMBOL_NAME(kernel_ptr_dir4)+_PAGE_TABLE+_PAGE_ACCESSED),%a1
+        movl    %a1,%a0@(%d0:l:4)
+        movl    %a1,%a0@+
+
+        /* Setup early terminator pages for hardware access */
+        dputc   'd'
+        lea     %pc@(SYMBOL_NAME(kernel_pg_dir) + 127*4),%a1
+        movl    #0xFE000000+_PAGE_PRESENT+_PAGE_ACCESSED+_PAGE_DIRTY+_PAGE_NOCACHE030,%d1
+        movl    %d1,%a1@
+
+        /* Map the memory to appear linear
+         */
+        dputc   'e'
+        clrl    %d0             /* virtual address */
+        lea     %pc@(Lmemory_list),%a0
+1:
+        movl    %a0@+,%a1       /* address */
+        movl    %a0@+,%d1       /* size */
+        tstl    %a1
+        beqs    2f
+        mmu_map %d0,%a1,%d1,#_PAGE_NOCACHE030
+        addl    %d1,%d0
+        bras    1b
+2:
+        lea     %pc@(Lmemory_last),%a0
+        movl    %d0,%a0@
+
+#if 0
+        lea     %pc@(SYMBOL_NAME(kernel_pg_dir)),%a0
+        dump    %a0,#PAGESIZE
+#endif
+
+        /* Enable the MMU
+         */
+        dputc   'f'
+        .chip   68030
+        lea     %pc@(Lmmu_engage_030_temp),%a0
+        movel   #0x80000002,%a0@
+        lea     %pc@(SYMBOL_NAME(kernel_pg_dir)),%a1
+        movl    %a1,%a0@(4)
+        movl    #0x0808,%d0
+        movec   %d0,%cacr
+        pmove   %a0@,%srp
+        pflusha
+        movl    #0x82c07760,%a0@(8)
+        pmove   %a0@(8),%tc
+        jmp     1f:l
+1:
+        movl    #0x0808,%d0
+        movec   %d0,%cacr
+        pflusha
+        .chip   68k
+
+        /* Fix the stack
+         */
+        movl    #0x100,%sp
+
+        /* Remove the now unneeded mappings (5 mappings remain, 4 at top) */
+        dputc   'g'
+        movl    #SYMBOL_NAME(kernel_pg_dir)+16,%a0
+        movl    #ROOT_TABLE_SIZE-6,%d0
+1:
+        clrl    %a0@+
+        dbra    %d0,1b
+
+        /* Move yourself and the kernel to end of the memory
+         */
+        dputc   'h'
+        get_kernel_size
+        addl    #SYMBOL_NAME(__end)+4095,%d0
+        andl    #-PAGESIZE,%d0
+        movl    Lmemory_last,%a1
+        subl    %d0,%a1
+        movl    %a1,Lmemory_last
+        movl    #0,%a0
+        lsrl    #2,%d0
+1:
+        subl    #1,%d0
+        bmi     2f
+        movl    %a0@+,%a1@+
+        bras    1b
+2:
+        movl    Lmemory_last,%a0
+        jmpl    %a0@(3f)
+
+3:
+        dputc   'i'
+
+        /*
+         * Loop through the sections of the kernel and copy them over.
+         */
+
+        get_kernel_start                /* in %a0 */
+        movel   %a0,%a1                 /* offset of all numbers */
+        clrl    %d3                     /* end of bss */
+
+        get_kernel_physical_headers      /* count in d0, first in %a0 */
+        subl    #32,%a0
+
+1:
+        dputc   'j'
+        subl    #1,%d0
+        bmi     5f
+        addl    #32,%a0
+
+        movel   %a0@(4),%a2     /* file offset */
+        addl    %a1,%a2         /* current memory address */
+        
+        movel   %a0@(8),%a3     /* load memory address */
+        movel   %a0@(16),%d1    /* file size */
+        movel   %a0@(20),%d2    /* memory size */
+
+        cmpl    #SYMBOL_NAME(_stext)+PAGESIZE,%a3
+        bpl     2f
+
+        movl    #SYMBOL_NAME(_stext)+PAGESIZE,%d3
+        subl    %a3,%d3         /* how much is below */
+
+        addl    %d3,%a3         /* move it up */
+        addl    %d3,%a2         /* move it up */
+
+        subl    %d3,%d2
+        bmi     1b              /* nothing left */
+
+        subl    %d3,%d1
+        bmi     4f
+2:
+        subl    %d1,%d2         /* do not clear what is in file */
+        bpl     3f
+        addl    %d1,%d2
+        movl    %d2,%d1
+        clrl    %d2
+
+3:
+        subl    #1,%d1
+        bmi     4f
+        moveb   %a2@+,%a3@+
+        bras    3b
+
+4:      /* clear */
+        lea     %a3@(%d2),%a4
+        cmpl    %a4,%d3
+        bpl     4f
+        movl    %a4,%d3
+4:
+
+        subl    #1,%d2
+        bmi     1b
+        clrb    %a3@+
+        bras    4b
+5:
+
+        /*
+         * Create a boot info record
+         */
+        dputc   'k'
+        addl    #PAGESIZE-1,%d3
+        andl    #-PAGE_SIZE,%d3
+        movl    %d3,%a0
+
+        movw    #BI_MACHTYPE,%a0@+
+        movw    #8,%a0@+
+        movl    #MACH_TEKXP,%a0@+
+
+        movw    #BI_CPUTYPE,%a0@+
+        movw    #8,%a0@+
+        movl    #CPU_68030,%a0@+
+
+        movw    #BI_FPUTYPE,%a0@+
+        movw    #8,%a0@+
+        movl    #0,%a0@+
+
+        movw    #BI_MMUTYPE,%a0@+
+        movw    #8,%a0@+
+        movl    #MMU_68030,%a0@+
+
+        lea     %pc@(Lmemory_list),%a1
+1:
+        movel   %a1@+,%d1
+        movel   %a1@+,%d0
+        tstl    %d1
+        beqs    2f
+        movw    #BI_MEMCHUNK,%a0@+
+        movw    #12,%a0@+
+        movl    %d1,%a0@+
+        movl    %d0,%a0@+
+        bras    1b
+2:
+
+        movw    #BI_LAST,%a0@+
+        clrw    %a0@+
+
+        /* jump into the kernel */
+        dputc   'l'
+        get_kernel_entry
+        jmpl    %a0@
+
+/*
+ * Get the position of the kernels ELF header. It is located on the next
+ * page after this wrapper program.
+ */
+
+func_start      get_kernel_start,%d0
+        lea     %pc@(__end+PAGESIZE-1),%a0
+        movl    %a0,%d0
+        andl    #-PAGESIZE,%d0
+        movl    %d0,%a0
+func_return     get_kernel_start
+
+/*
+ * Read the entry point of the ELF executable.
+ */
+
+func_start      get_kernel_entry,%d0
+        get_kernel_start
+        movl    %a0@(0x18),%a0
+func_return     get_kernel_entry
+
+/*
+ * Get the address of the first physical header (into %a0) and the number
+ * of those headers present (into %d0).
+ */
+func_start      get_kernel_physical_headers,%d1
+        get_kernel_start
+        clrl    %d0
+        movw    %a0@(0x2C),%d0          /* Number of headers */
+        movl    %a0@(0x1C),%d1          /* Offset of the table */
+        lea     %a0@(%d1),%a0
+func_return     get_kernel_physical_headers
+
+/*
+ * Calculate the size kernel image. Notice this is not its final footprint.
+ */
+func_start      get_kernel_size,%d1/%d2/%a0
+        get_kernel_physical_headers
+        clrl    %d1
+1:
+        subl    #1,%d0
+        bmi     3f
+        movl    %a0@(4),%d2
+        addl    %a0@(16),%d2
+        cmpl    %d2,%d1
+        bpl     2f
+        movl    %d2,%d1
+2:
+        addl    #32,%a0
+        bras    1b
+3:
+        movl    %d1,%d0
+func_return     get_kernel_size
+
+
+/*
+ * Fetch the memory configuration and store it in a field for later
+ * retrieval.
+ */
+func_start      build_memory_list,%a2/%a4/%d0/%d1
+        lea     %pc@(Lmemory_list),%a4
+
+        movl    #MEMSTART,%a2
+        bfextu  0xFFD00003{4:4},%d0
+        movl    %pc@(Lcpsram_bitmap_table,%d0:l:4),%d0
+1:
+        tstl    %d0
+        beqs    2f
+        movl    %d0,%d1
+        andl    #3,%d1
+        movl    %pc@(Ldram_size_table,%d1:l:4),%d1
+        movl    %a2,%a4@+
+        movl    %d1,%a4@+
+        addl    #MEMCHUNK,%a2
+        lsrl    #2,%d0
+        bras    1b
+2:
+        bfextu  0xFFD00003{0:1},%d0
+        tstl    %d0
+        bnes    4f
+        movl    #OPTRAMSTART,%a2
+        bfextu  0xFFD00003{1:3},%d0
+        movl    %pc@(Lcporam_bitmap_table,%d0:l:4),%d0
+3:
+        tstl    %d0
+        beqs    4f
+        movl    %d0,%d1
+        andl    #3,%d1
+        movl    %pc@(Ldram_size_table,%d1:l:4),%d1
+        movl    %a2,%a4@+
+        movl    %d1,%a4@+
+        addl    #MEMCHUNK,%a2
+        lsrl    #2,%d0
+        bras    3b
+4:
+func_return     build_memory_list
+
+Ldram_size_table:
+        .long   0
+        .long   0x100000
+        .long   0x400000
+        .long   0x040000
+
+Lcporam_bitmap_table:
+        .long   0xAA
+        .long   0x2A
+        .long   0x0A
+        .long   0x02
+        .long   0x55
+        .long   0x05
+        .long   0x01
+        .long   0x15
+
+Lcpsram_bitmap_table:
+        .long   0x95
+        .long   0x01
+        .long   0x05
+        .long   0x15
+        .long   0x55
+        .long   0x06
+        .long   0x16
+        .long   0x56
+        .long   0x0A
+        .long   0x1A
+        .long   0x5A
+        .long   0xA5
+        .long   0x2A
+        .long   0x6A
+        .long   0x02
+        .long   0xAA
+
+
+/*
+ * Memory mapping functions from head.S. (shortened)
+ */
+
+func_start      mmu_map,%d0-%d4/%a0-%a4
+        /* Get the logical address, it is assumed to be rounded to 256KiB */
+        movl    ARG1,%a3
+
+        /* Get the end address. The length should be rounded to 256KiB */
+        movl    %a3,%a4
+        addl    ARG3,%a4
+        subql   #1,%a4
+
+        /* Get the physical address, assumed to be rounded to 256KiB too */
+        movl    ARG2,%a2
+
+        /* Augment the physical address with page attributes */
+        movl    ARG4,%d0
+        orw     #_PAGE_PRESENT+_PAGE_ACCESSED+_PAGE_DIRTY,%d0
+        addw    %d0,%a2
+
+1:
+        /* Calculate the offset into the root table */
+        movl    %a3,%d0
+        movl    #ROOT_INDEX_SHIFT,%d1
+        lsrl    %d1,%d0
+        mmu_get_root_table_entry        %d0
+
+        /* Calculate the offset into the pointer table */
+        movl    %a3,%d0
+        movl    #PTR_INDEX_SHIFT,%d1
+        lsrl    %d1,%d0
+        andl    #PTR_TABLE_SIZE-1,%d0
+        mmu_get_ptr_table_entry         %a0,%d0
+
+
+        movl    %a2,%a0@
+        addl    #PAGE_TABLE_SIZE*PAGESIZE,%a2
+        addl    #PAGE_TABLE_SIZE*PAGESIZE,%a3
+
+        lea     %a3@(-1),%a0
+        cmpl    %a0,%a4
+        jhi     1b
+        
+func_return     mmu_map
+        
+func_start      mmu_get_root_table_entry,%d0
+        movl    ARG1,%d0
+        lea     %pc@(SYMBOL_NAME(kernel_pg_dir),%d0:l:4),%a0
+func_return     mmu_get_root_table_entry
+
+func_start      mmu_get_ptr_table_entry,%d0
+        movl    ARG1,%a0
+        movl    %a0@,%d0
+        andw    #-PTR_TABLE_SIZE,%d0
+        movl    %d0,%a0
+        movl    ARG2,%d0
+        lea     %a0@(%d0:l:4),%a0
+func_return     mmu_get_ptr_table_entry
+        
+
+
+
+.data
+Lmmu_engage_030_temp:
+        .space 12
+
+Lmemory_last:
+        .long   0               /* end of virtual memory */
+
+Lmemory_list:
+        .rept   MEMORY_MAP_ENTRIES
+        .long   0                       /* address */
+        .long   0                       /* size */
+        .endr
+

arch/m68k/boot/tekxp.ld

@@ +1 @@
+OUTPUT_FORMAT("binary")
+ENTRY(__start)
+SECTIONS
+{
+  .text :
+  {
+    *(.init)
+    *(.text)
+     ___CTOR_LIST__ = .;
+     LONG((___CTOR_END__ - ___CTOR_LIST__) / 4 - 2)
+     *(.ctors)
+     LONG(0)
+     ___CTOR_END__ = .;
+     ___DTOR_LIST__ = .;
+     LONG((___DTOR_END__ - ___DTOR_LIST__) / 4 - 2)
+     *(.dtors)
+     LONG(0)
+     ___DTOR_END__ = .;
+    *(.fini)
+     etext  =  .;
+     __etext  =  .;
+  }
+  .data  SIZEOF(.text) + ADDR(.text) :
+  {
+    *(.data .data2)
+     edata  =  .;
+     __edata  =  .;
+  }
+  .bss  SIZEOF(.data) + ADDR(.data) :
+  {
+    *(.bss)
+    *(COMMON)
+     end = .;
+     __end = .;
+  }
+}

arch/m68k/config.in

@@ -56 +56 @@
 fi
 bool 'Sun3x support' CONFIG_SUN3X
 bool 'Sun3 support' CONFIG_SUN3
-  
+bool 'TekXpress 2x support' CONFIG_TEKXP
+if [ "$CONFIG_TEKXP" = "y" ] ; then
+   define_bool CONFIG_PSMOUSE y
+   define_bool CONFIG_NO_CMDLINE y
+   string '  Kernel command line' CONFIG_BOOTCMD "root=nfs ip=192.168.3.10:192.168.2.1:192.168.3.1:255.255.255.0:tek.malware.de:eth0:none nfsroot=192.168.2.1:/tftpboot/XP20"
+   bool '  Report as MVME160' CONFIG_TEKXP_REPORT_MVME
+fi
+ 
 bool 'Q40/Q60 support' CONFIG_Q40
 
 comment 'Processor type'
@@ -365 +372 @@
          fi
          dep_tristate 'NE2000/NE1000 support' CONFIG_NE2000 m
       fi
+      if [ "$CONFIG_TEKXP" = "y" ]; then
+        bool '  TekXpress on-board Sonic support' CONFIG_TEKSONIC
+      fi
    fi
    endmenu
 
@@ -474 +484 @@
    define_tristate CONFIG_SERIAL $CONFIG_DN_SERIAL
 fi 
 
+if [ "$CONFIG_TEKXP" = "y" ] ; then
+   tristate 'SCC2962 serial support' CONFIG_SCC2692
+fi
+
 if [ "$CONFIG_SUN3" = "y" -o "$CONFIG_SUN3X" = "y" ]; then
    bool 'Sun3/3x builtin serial support' CONFIG_SUN3X_ZS
 else
@@ -499 +513 @@
      "$CONFIG_SUN3X_ZS" = "y" -o "$CONFIG_SERIAL" = "y" -o \
      "$CONFIG_MVME147_SCC" -o "$CONFIG_SERIAL167" = "y" -o \
      "$CONFIG_MVME162_SCC" -o "$CONFIG_BVME6000_SCC" = "y" -o \
-     "$CONFIG_DN_SERIAL" ]; then
+     "$CONFIG_DN_SERIAL" = "y" -o "$CONFIG_SCC2692" = "y" ]; then
    bool 'Support for serial port console' CONFIG_SERIAL_CONSOLE
 fi
 bool 'Support for user serial device modules' CONFIG_USERIAL

arch/m68k/kernel/head.S

@@ -39 +39 @@
  * Disabled caches
  * Put us in supervisor state.
  *
+ * On TekXpress (CONFIG_TEKXP) the boat loader enables the MMU since
+ * there might not be enough physically continues memory available
+ * for the kernel (e.g. 6 x 1MB memory configuration). The mapping is
+ * 1:1 for the first chunk of physical memory and does use the same
+ * table sizes as the temporary memory map used during enabling the MMU.
+ *
  * The kernel setup code takes the following steps:
  * .  Raise interrupt level
  * .  Set up initial kernel memory mapping.
@@ -480 +486 @@
         addql   #4,%sp
 .endm
 
+.macro  get_bi_record_continue  record,recsize,binfo
+        movel   \binfo,%sp@-
+        movel   \recsize,%sp@-
+        pea     \record
+        func_call       get_bi_record_continue
+        addl    #12,%sp
+.endm
+
 func_define     serial_putc,1
 func_define     console_putc,1
 
@@ -543 +557 @@
 #define is_not_apollo(lab) cmpl &MACH_APOLLO,%pc@(m68k_machtype); jne lab
 #define is_not_q40(lab) cmpl &MACH_Q40,%pc@(m68k_machtype); jne lab
 #define is_not_sun3x(lab) cmpl &MACH_SUN3X,%pc@(m68k_machtype); jne lab
+#define is_not_tekxp(lab) cmpl &MACH_TEKXP,%pc@(m68k_machtype); jne lab
 
 #define hasnt_leds(lab) cmpl &MACH_HP300,%pc@(m68k_machtype); \
                         jeq 42f; \
@@ -587 +602 @@
         .long   MACH_BVME6000, BVME6000_BOOTI_VERSION
         .long   MACH_MAC, MAC_BOOTI_VERSION
         .long   MACH_Q40, Q40_BOOTI_VERSION     
+        .long   MACH_TEKXP, TEKXP_BOOTI_VERSION
         .long   0
 1:      jra     SYMBOL_NAME(__start)
 
@@ -993 +1009 @@
 
         leds    0x4
 
+#ifdef CONFIG_TEKXP
+        is_not_tekxp(5f)
+
+        get_bi_record   BI_LAST
+        addw    #PAGESIZE-1,%a0
+        movel   %a0,%d2
+        andw    #-PAGESIZE,%d2
+
+        /* Convert it into a physical address */
+        movl    %d2,%d1
+        get_bi_record   BI_MEMCHUNK
+1:
+        cmpl    #-1,%d0
+        beqs    2f
+        subl    %a0@(4),%d1
+        bcs     4f
+        get_bi_record_continue  BI_MEMCHUNK,%d0,%a0
+        bras    1b
+4:
+        movl    %d1,%d0
+        addl    %a0@(4),%d0
+        addl    %a0@,%d0
+        bras    3f
+2:
+        movl    %d2,%d0
+3:
+
+        movel   %d0,availmem
+
+        /* Skip all the MMU stuff here */
+        bra     L(engage_done)
+5:
+#endif
+
 /*
  *      mmu_init
  *
@@ -1310 +1360 @@
 
         putc    'P'
         mmu_map         #0x80000000,#0,#0x02000000,#_PAGE_NOCACHE030
-        
-L(notapollo):   
         jbra    L(mmu_init_done)
+
+L(notapollo):   
 #endif
 
+#ifdef CONFIG_TEKXP
+        is_not_tekxp(L(nottekxp))
+
+        putc    'P'
+        mmu_map_tt      #0,#0xff000000,#0x01000000,#_PAGE_NOCACHE030
+
+L(nottekxp):
+#endif
+
+        jbra    L(mmu_init_done)
+
 L(mmu_init_done):
 
         putc    'G'
@@ -1442 +1503 @@
 
         movel   L(memory_start),availmem
 
+L(engage_done):
+
 #ifdef CONFIG_AMIGA
         is_not_amiga(1f)
         /* fixup the Amiga custom register location before printing */
@@ -1572 +1635 @@
  * Returns: d0: size (-1 if not found)
  *          a0: data pointer (end-of-records if not found)
  */
-func_start      get_bi_record,%d1
-
-        movel   ARG1,%d0
-        lea     %pc@(SYMBOL_NAME(_end)),%a0
+.macro get_bi_record_core
 #ifndef CONFIG_HP300
 1:      tstw    %a0@(BIR_TAG)
         jeq     3f
@@ -1591 +1651 @@
         lea     %a0@(BIR_SIZE),%a0
 4:
 #endif /* CONFIG_HP300 */
+.endm
+ 
+func_start      get_bi_record,%d1
+
+        movel   ARG1,%d0
+        lea     %pc@(SYMBOL_NAME(_end)),%a0
+        get_bi_record_core
 func_return     get_bi_record
 
+func_start      get_bi_record_continue,%d1
+        movl    ARG3,%a0
+        addl    ARG2,%a0
+        subl    #BIR_DATA,%a0
+        movl    ARG1,%d0
+        get_bi_record_core
+func_return     get_bi_record_continue
 
 /*
  *      MMU Initialization Begins Here
@@ -3020 +3094 @@
 /* We count on the PROM initializing SIO1 */
 #endif
 
+#ifdef CONFIG_TEKXP
+#if 0
+        is_not_tekxp(1f)
+        movl    %a0,-(%sp)
+        movl    #0xFF800000,%a0         /* address of UART */
+        clrb    0x34(%a0)
+        movb    #0x80,0x10(%a0)         /* ACR: baud rate set 2 */
+        clrb    0x14(%a0)               /* reset interrupt mask */
+        movb    #0x10,8(%a0)            /* CRA: reset MR pointer */
+        movb    #0x20,8(%a0)
+        movb    #0x30,8(%a0)
+        movb    #2,(%a0)                /* 7 bits per char */
+        movb    #7,(%a0)                /* one stop bit */
+        movb    #0xBB,4(%a0)            /* 9600 baud */
+        movb    #5,8(%a0)               /* enable tx and rx */
+        movl    (%sp)+,%a0
+        bras    L(serial_init_done)
+1:
+#endif
+#endif
+
 L(serial_init_done):
 func_return     serial_init
 
@@ -3215 +3310 @@
 2:
 #endif
 
+#ifdef CONFIG_TEKXP
+        is_not_tekxp(3f)
+        moveml  %a0/%d0-%d1,%sp@-
+        movl    #0xFF800000,%a0
+1:
+        movb    4(%a0),%d1
+        andb    #4,%d1
+        tstb    %d1
+        bne     2f
+        bra     1b
+2:
+        movb    %d0,12(%a0)
+        moveml  %sp@+,%d0-%d1/%a0
+        jbra    L(serial_putc_done)
+3:
+#endif
+
 L(serial_putc_done):
 func_return     serial_putc
 

arch/m68k/kernel/m68k_ksyms.c

@@ -53 +53 @@
 EXPORT_SYMBOL(mm_cachebits);
 #endif
 #endif /* !CONFIG_SUN3 */
+EXPORT_SYMBOL(flush_icache_user_range);
 EXPORT_SYMBOL(m68k_debug_device);
 EXPORT_SYMBOL(mach_hwclk);
 EXPORT_SYMBOL(mach_get_ss);

arch/m68k/kernel/setup.c

@@ -140 +140 @@
 extern void config_hp300(void);
 extern void config_q40(void);
 extern void config_sun3x(void);
+extern void config_tekxp(void);
 
 extern void mac_debugging_short (int, short);
 extern void mac_debugging_long  (int, long);
@@ -150 +151 @@
 
 static void __init m68k_parse_bootinfo(const struct bi_record *record)
 {
+#ifdef CONFIG_NO_CMDLINE
+    strncpy(m68k_command_line, CONFIG_BOOTCMD, CL_SIZE);
+#endif
+
     while (record->tag != BI_LAST) {
         int unknown = 0;
         const unsigned long *data = record->data;
@@ -354 +359 @@
                 config_sun3x();
                 break;
 #endif
+#ifdef CONFIG_TEKXP
+            case MACH_TEKXP:
+                config_tekxp();
+                break;
+#endif
             default:
                 panic ("No configuration setup");
         }

arch/m68k/mac/iop.c

@@ -261 +261 @@
                 } else {
                         iop_base[IOP_NUM_ISM] = (struct mac_iop *) ISM_IOP_BASE_QUADRA;
                 }
-                iop_base[IOP_NUM_SCC]->status_ctrl = 0;
+                iop_base[IOP_NUM_ISM]->status_ctrl = 0;
                 iop_ism_present = 1;
         } else {
                 iop_base[IOP_NUM_ISM] = NULL;

arch/m68k/mm/Makefile

@@ -9 +9 @@
 
 O_TARGET := mm.o
 
-obj-y           := init.o fault.o extable.o hwtest.o
+obj-y           := cache.o init.o fault.o extable.o hwtest.o
 
 ifndef CONFIG_SUN3
 obj-y           += kmap.o memory.o motorola.o

arch/m68k/mm/cache.c

@@ +1 @@
+/*
+ *  linux/arch/m68k/mm/cache.c
+ *
+ *  Instruction cache handling
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ */
+
+#include <linux/pagemap.h>
+
+#include <asm/traps.h>
+
+
+static unsigned long virt_to_phys_slow(unsigned long vaddr, mm_segment_t fs)
+{
+        if (CPU_IS_060) {
+                mm_segment_t old_fs = get_fs();
+                unsigned long paddr;
+
+                set_fs(fs);
+
+                /* The PLPAR instruction causes an access error if the translation
+                 * is not possible. To catch this we use the same exception mechanism
+                 * as for user space accesses in <asm/uaccess.h>. */
+                asm volatile (".chip 68060\n"
+                              "1: plpar (%0)\n"
+                              ".chip 68k\n"
+                              "2:\n"
+                              ".section .fixup,\"ax\"\n"
+                              "   .even\n"
+                              "3: sub.l %0,%0\n"
+                              "   jra 2b\n"
+                              ".previous\n"
+                              ".section __ex_table,\"a\"\n"
+                              "   .align 4\n"
+                              "   .long 1b,3b\n"
+                              ".previous"
+                              : "=a" (paddr)
+                              : "0" (vaddr));
+                set_fs(old_fs);
+                return paddr;
+        } else if (CPU_IS_040) {
+                mm_segment_t old_fs = get_fs();
+                unsigned long mmusr;
+
+                set_fs(fs);
+                
+                asm volatile (".chip 68040\n\t"
+                              "ptestr (%1)\n\t"
+                              "movec %%mmusr, %0\n\t"
+                              ".chip 68k"
+                              : "=r" (mmusr)
+                              : "a" (vaddr));
+                set_fs(old_fs);
+
+                if (mmusr & MMU_R_040)
+                        return (mmusr & PAGE_MASK) | (vaddr & ~PAGE_MASK);
+        } else {
+                unsigned short mmusr;
+                unsigned long *descaddr;
+
+                asm volatile ("ptestr %3,%2@,#7,%0\n\t"
+                              "pmove %%psr,%1@"
+                              : "=a&" (descaddr)
+                              : "a" (&mmusr), "a" (vaddr), "d" (fs.seg));
+                if (mmusr & (MMU_I|MMU_B|MMU_L))
+                        return 0;
+                descaddr = phys_to_virt((unsigned long)descaddr);
+                switch (mmusr & MMU_NUM) {
+                case 1:
+                        return (*descaddr & 0xfe000000) | (vaddr & 0x01ffffff);
+                case 2:
+                        return (*descaddr & 0xfffc0000) | (vaddr & 0x0003ffff);
+                case 3:
+                        return (*descaddr & PAGE_MASK) | (vaddr & ~PAGE_MASK);
+                }
+        }
+        return 0;
+}
+
+/* Push n pages at kernel virtual address and clear the icache */
+/* RZ: use cpush %bc instead of cpush %dc, cinv %ic */
+void flush_icache_range(unsigned long address, unsigned long endaddr)
+{
+        if (CPU_IS_040_OR_060) {
+                address &= PAGE_MASK;
+
+                if (address >= PAGE_OFFSET && address < (unsigned long)high_memory) {
+                        do {
+                                asm volatile ("nop\n\t"
+                                              ".chip 68040\n\t"
+                                              "cpushp %%bc,(%0)\n\t"
+                                              ".chip 68k"
+                                              : : "a" (virt_to_phys((void *)address)));
+                                address += PAGE_SIZE;
+                        } while (address < endaddr);
+                } else {
+                        do {
+                                asm volatile ("nop\n\t"
+                                              ".chip 68040\n\t"
+                                              "cpushp %%bc,(%0)\n\t"
+                                              ".chip 68k"
+                                              : : "a" (virt_to_phys_slow(address, KERNEL_DS)));
+                                address += PAGE_SIZE;
+                        } while (address < endaddr);
+                }
+        } else {
+                unsigned long tmp;
+                asm volatile ("movec %%cacr,%0\n\t"
+                              "orw %1,%0\n\t"
+                              "movec %0,%%cacr"
+                              : "=&d" (tmp)
+                              : "di" (FLUSH_I));
+        }
+}
+
+void flush_icache_user_range(void *addr, unsigned long size)
+{
+        unsigned long address = (unsigned long)addr;
+        unsigned long endaddr = address + size;
+
+        if (CPU_IS_040_OR_060) {
+                address &= PAGE_MASK;
+
+                do {
+                        asm volatile ("nop\n\t"
+                                      ".chip 68040\n\t"
+                                      "cpushp %%bc,(%0)\n\t"
+                                      ".chip 68k"
+                                      : : "a" (virt_to_phys_slow(address, get_fs())));
+                        address += PAGE_SIZE;
+                } while (address < endaddr);
+        } else {
+                unsigned long tmp;
+                asm volatile ("movec %%cacr,%0\n\t"
+                              "orw %1,%0\n\t"
+                              "movec %0,%%cacr"
+                              : "=&d" (tmp)
+                              : "di" (FLUSH_I));
+        }
+}
+
+void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
+                            unsigned long addr, int len)
+{
+        if (CPU_IS_040_OR_060) {
+                asm volatile ("nop\n\t"
+                              ".chip 68040\n\t"
+                              "cpushp %%bc,(%0)\n\t"
+                              ".chip 68k"
+                              : : "a" (page_to_phys(page)));
+        } else {
+                unsigned long tmp;
+                asm volatile ("movec %%cacr,%0\n\t"
+                              "orw %1,%0\n\t"
+                              "movec %0,%%cacr"
+                              : "=&d" (tmp)
+                              : "di" (FLUSH_I));
+        }
+}
+

arch/m68k/tekxp/Makefile

@@ +1 @@
+#
+# Makefile for Linux arch/m68k/tekxp source directory
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := tekxp.o
+
+export-objs     := tek_ksyms.o tekuart.o nvram.o
+obj-y           := config.o tekuart.o nvram.o tek_ksyms.o
+
+include $(TOPDIR)/Rules.make

arch/m68k/tekxp/config.c

@@ +1 @@
+/*
+ *  linux/arch/m68k/tekxp/config.c
+ *
+ *  Copyright (C) 2002,2003 Michael Mueller <malware@t-online.de>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/console.h>
+#include <linux/sched.h>
+
+#include <asm/machdep.h>
+#include <asm/irq.h>
+#include <asm/tekirq.h>
+#include <asm/tekuart.h>
+#include <asm/teknvram.h>
+
+unsigned char aux_device_present = 1;
+
+/*
+ * While the support for this platform is still under development we just
+ * spit out a stupid message whenever an unexpected IRQ does occur.
+ * This message when appearing once most possible will run forever,
+ * since we have no interrupt controller we can give an acknowledgement.
+ */
+
+static void tekxp_int_unhandled(int irq, void *dev_id, struct pt_regs *regs)
+{
+        printk(KERN_ERR "Unhandled IRQ %d\n", irq);
+}
+
+static void (*tekxp_default_handler[SYS_IRQS])(int, void *, struct pt_regs *) = {
+        tekxp_int_unhandled, tekxp_int_unhandled, tekxp_int_unhandled,
+        tekxp_int_unhandled, tekxp_int_unhandled, tekxp_int_unhandled,
+        tekxp_int_unhandled, tekxp_int_unhandled
+};
+
+/*
+ * Reset the machine.
+ */
+static void tekxp_reset(void)
+{
+        tek_uart_set_op(4);
+        __asm__ volatile("1:\tbras 1b\r\n");
+}
+
+#ifdef USE_VIDEO_REFRESH_AS_TIMER
+/*
+ * Timer interrupt handler
+ */
+
+static void tek_timer(int irq, void *dev_id, struct pt_regs *regs)
+{
+        register void (*handler)(int,void*,struct pt_regs*) = dev_id;
+
+        (*(volatile unsigned char *)(0xFFB00000))++;
+
+        handler(irq, NULL, regs);
+}
+#endif
+
+/*
+ * To initialize the scheduling we setup a timer on the DUART.
+ * The hardware offers a screen refresh interrupt but its rate varies with
+ * the display mode and in all cases is less than HZ.
+ */
+
+static void __init tek_sched_init(void (*handler)(int, void *, struct pt_regs *))
+{
+#ifdef USE_VIDEO_REFRESH_AS_TIMER
+        /*
+         * Enable the timer
+         */
+        (*(volatile unsigned char *)(0xFFB00000))++;
+
+        if ( request_irq(TEK_IRQ_VIDEO, tek_timer, IRQ_FLG_LOCK, "timer", handler) )
+                panic("Could not register timer interrupt");
+#else
+        tek_uart_setup_timer(handler);
+#endif
+}
+
+/*
+ * Currently there is no such function implemented.
+ * However one could read the counter registers of the DUART here.
+ */
+
+static unsigned long tek_gettimeoffset(void)
+{
+        return 0;
+}
+
+/*
+ * There is not much to do with the keyboard here.
+ * The TekXpress Bootmonitor did most of the work already. What is left
+ * will be done by the PC keyboard driver later.
+ */
+
+static int __init tek_dummy_keyb_init(void)
+{
+        return 0;
+}
+
+/*
+ * This function simply modifies the C character for a new line into the
+ * MSDOS-typical version of it.
+ */
+
+static void tek_serial_console_write(struct console *co, const char *s,
+                                       unsigned int count)
+{
+        while ( count-- )
+        {
+                char c = *s++;
+                if ( c == '\n' )
+                        tek_uart_putchar(0, '\r', 1);
+                tek_uart_putchar(0, c, 1);
+        }
+}
+
+/*
+ */
+
+static struct console tekxp_console_driver = {
+        name:           "debug",
+        flags:          CON_PRINTBUFFER,
+        index:          -1,
+};
+
+/*
+ */
+static void __init tekxp_debug_init(void)
+{
+        extern char m68k_debug_device[];
+
+        if (!strcmp( m68k_debug_device, "ser" )) {
+                /* no initialization required (?) */
+                tekxp_console_driver.write = tek_serial_console_write;
+                register_console(&tekxp_console_driver);
+        }
+}
+
+/*
+ * Get the model number as stored in NVRAM and make it readable.
+ *
+ * FIXME: This does not work as expected.
+ */
+
+static void tekxp_get_model(char *model)
+{
+#ifdef CONFIG_TEKXP_REPORT_MVME
+    sprintf(model, "Motorola MVME160");
+#else
+    unsigned short m = nvram_readw(NVRAM_DISPLAY);
+    static const int model_number[] = {24,25,27,29,25,21,25,25};
+
+    if ( m < sizeof model_number )
+        sprintf(model, "TekXpress XP%02d", model_number[m]);
+    else
+        sprintf(model, "TekXpress");
+#endif
+}
+
+/*
+ * This basicly sets the machine dependent variables as needed by
+ * the m68k port of the linux kernel.
+ * Besides it initializes a console for kernel messages and the NVRAM
+ * routines.
+ */
+
+void __init config_tekxp(void)
+{
+        tekxp_debug_init();
+        init_nvram(NULL);
+
+        mach_get_model          = tekxp_get_model;
+        mach_sched_init         = tek_sched_init;
+#ifdef CONFIG_VT
+        mach_keyb_init          = tek_dummy_keyb_init;
+#endif
+        mach_init_IRQ           = tek_uart_init_IRQ;
+        mach_request_irq        = tek_uart_request_irq;
+        mach_free_irq           = tek_uart_free_irq;
+        enable_irq              = tek_uart_enable_irq;
+        disable_irq             = tek_uart_disable_irq;
+        mach_get_irq_list       = tek_uart_get_irq_list;
+        mach_gettimeoffset      = tek_gettimeoffset;
+        mach_max_dma_address    = 0xffffffff;
+#ifdef CONFIG_DUMMY_CONSOLE
+        conswitchp              = &dummy_con;
+#endif
+        mach_default_handler    = &tekxp_default_handler;
+        mach_reset              = tekxp_reset;
+}
+

arch/m68k/tekxp/nvram.c

@@ +1 @@
+/*
+ *  linux/arch/m68k/tekxp/nvram.c
+ *
+ *  Copyright (C) 2002,2003 Michael Mueller <malware@t-online.de>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <asm/io.h>
+#include <asm/teknvram.h>
+#include <asm/tekuart.h>
+
+#define DEBUG
+
+#ifdef DEBUG
+static int nvram_init = 0;
+#endif
+static u_char *eeprom_ptr;
+static u_char nvram_copy[EEPROM_SIZE];
+
+static void ee_enable(void)
+{
+#if 0
+        // TODO: We still rely on the I/O being transparently mapped
+        // TODO: This might interfere with other code using the UART
+        *(volatile u_char*)0xFF800038 = (u_char)0x80;
+#else
+        tek_uart_set_op(7);
+#endif
+}
+
+static void ee_disable(void)
+{
+#if 0
+        // TODO: We still rely on the I/O being transparently mapped
+        // TODO: This might interfere with other code using the UART
+        *(volatile u_char*)0xFF80003C = (u_char)0x80;
+#else
+        tek_uart_clr_op(7);
+#endif
+}
+
+void init_nvram(unsigned long *mem_start)
+{
+        u_char chksum;
+        u_char chksum2;
+        u_short chksum_complete;
+        int i;
+
+        // FIXME: When this code is running ioremap* is not working yet.
+        //  So we access the EEPROM through the transparent mapping
+        //  established in head.S
+#if 0
+        // Map EEPROM into kernel memory space
+        eeprom_ptr = ioremap_writethrough(EEPROM_BASE, EEPROM_SIZE);
+        if ( !eeprom_ptr )
+        {
+                panic(KERN_ERR "Could not map NVRAM into kernel memory space\n");
+        }
+#else
+        eeprom_ptr = (u_char*)EEPROM_BASE;
+#endif
+
+        // Make a copy of the content to avoid access count excess
+        ee_enable();
+        memcpy(nvram_copy, eeprom_ptr, EEPROM_SIZE);
+        ee_disable();
+
+        // Check the checksum of the content
+        chksum = 0xFF;
+        chksum2 = 0xFF;
+        for ( i = EEPROM_SIZE-1; i >= 0 ; i-- )
+        {
+                u_long new_chk /* d0 */ = chksum + nvram_copy[i];
+                if ( new_chk > 0xFF )
+                        new_chk++;
+                chksum = new_chk & 0xFF;
+
+                new_chk = chksum2 + chksum;
+                if ( new_chk > 0xFF )
+                        new_chk++;
+                chksum2 = new_chk++;
+        }
+
+        chksum_complete = ((u_short)chksum2 << 8) + chksum;
+        if ( chksum_complete == 0xFFFF )
+        {
+                printk("NVRAM checksum is ok\n");
+        }
+        else
+        {
+                printk(KERN_WARNING "NVRAM checksum invalid!\n");
+        }
+
+#ifdef DEBUG
+        nvram_init++;
+#endif
+}
+
+u_char nvram_readb(int ofs)
+{
+#ifdef DEBUG
+        if ( !nvram_init )
+        {
+                printk(KERN_ERR "Trial to read uninitialized NVRAM\n");
+                return 0xFF;
+        }
+#endif
+        if ( ofs < 0 || ofs >= EEPROM_SIZE )
+                return 0xFF;
+
+        return nvram_copy[ofs];
+}
+
+u_short nvram_readw(int ofs)
+{
+#ifdef DEBUG
+        if ( !nvram_init )
+        {
+                printk(KERN_ERR "Trial to read uninitialized NVRAM\n");
+                return 0xFFFFU;
+        }
+        if ( ofs & 1 )
+        {
+                panic("Unaligned word access to NVRAM");
+                return 0xFFFFU;
+        }
+#endif
+        if ( ofs < 0 || ofs >= EEPROM_SIZE )
+                return 0xFFFFU;
+
+        return *(u_short*)(nvram_copy + ofs);
+}
+
+
+u_long nvram_readl(int ofs)
+{
+#ifdef DEBUG
+        if ( !nvram_init )
+        {
+                printk(KERN_ERR "Trial to read uninitialized NVRAM\n");
+                return 0xFFFFFFFFUL;
+        }
+        if ( ofs & 3 )
+        {
+                panic("Unaligned word access to NVRAM");
+                return 0xFFFFFFFFUL;
+        }
+#endif
+        if ( ofs < 0 || ofs >= EEPROM_SIZE )
+                return 0xFFFFFFFFUL;
+
+        return *(u_long*)(nvram_copy + ofs);
+}
+
+

arch/m68k/tekxp/tek_ksyms.c

@@ +1 @@
+/*
+ *  linux/arch/m68k/tekxp/tek_ksyms.c
+ *
+ *  Copyright (C) 2002,2003 Michael Mueller <malware@t-online.de>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <asm/ptrace.h>
+#include <asm/tekuart.h>
+#include <asm/teknvram.h>
+
+EXPORT_SYMBOL(tek_uart_putchar);
+EXPORT_SYMBOL(tek_uart_lock);
+EXPORT_SYMBOL(nvram_readb);
+EXPORT_SYMBOL(nvram_readw);
+EXPORT_SYMBOL(nvram_readl);
+

arch/m68k/tekxp/tekuart.c

@@ +1 @@
+/*
+ *  linux/arch/m68k/tekxp/tekuart.c
+ *
+ *  Copyright (C) 2002,2003 Michael Mueller <malware@t-online.de>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/errno.h>
+#include <linux/spinlock.h>
+
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/pgtable.h>
+#include <asm/tekuart.h>
+#include <asm/tekirq.h>
+
+spinlock_t tek_uart_lock = SPIN_LOCK_UNLOCKED;
+static spinlock_t tek_irq_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ * Base address of the UART
+ *
+ * Initialized to the address accessable by a transparent mapping.
+ *
+ * FIXME: This is never mapped into the memory space of the kernel
+ *        since memory mapping is not available while initializing the
+ *        platform specific stuff.
+ */
+
+static tek_uart_t *uart = (tek_uart_t*)TEK_UART_BASE;
+
+/*
+ * Interrupt handler tables and call statistics
+ */
+
+static irq_handler_t irq_handlers[UART_IRQS];
+static int tek_irq_stat[UART_IRQS];
+
+#define IRQ_IDX(n) ((n)-SYS_IRQS)
+
+/*
+ * Dummy variable used as Lvalue when we need to read from the
+ * hardware without any need for the actual result value.
+ */
+
+static volatile u_char dummy;
+
+/*
+ * Variables used for the interrupt routine
+ */
+
+static u_char tek_uart_imr;             /* shadow Interrupt Mask Register   */
+static u_char tek_uart_isr;             /* shadow Interrupt Status Register */
+#ifndef USE_VIDEO_REFRESH_AS_TIMER
+static unsigned short tek_timer;        /* value to put into the counter    */
+#endif
+
+static u_char timer_mode = 0x80;        /* choose second baudrate set       */
+
+/*
+ * Set the interrupt mask register.
+ */
+
+static inline void __set_IMR(void)
+{
+        uart->wr.IMR = tek_uart_imr;
+}
+
+static void set_IMR(void)
+{
+        unsigned long flags;
+        spin_lock_irqsave(tek_uart_lock, flags);
+        __set_IMR();
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+}
+
+/*
+ * Interrupt handler.
+ *
+ * Besides demultiplexing the interrupt sources of the DUART it does take
+ * care of the counter prior to calling the kernel handler.
+ */
+
+static void tek_irqhandler(int irq, void *dev_id, struct pt_regs *regs)
+{
+        int i;
+
+        /*
+         * Read the ISR once. This does even clear all pending interrupts.
+         */
+        unsigned char ISR = uart->rd.ISR;
+
+#ifndef USE_VIDEO_REFRESH_AS_TIMER
+        /*
+         * Handle the counter.
+         */
+        if ( ISR & (1<<IRQ_IDX(TEK_IRQ_TIMER_A)) )
+                dummy = uart->rd.CounterStop;   /* just ack */
+#endif
+
+#ifdef DEBUG
+        printk("tek_irqhandler: ISR=%02x IMR=%02x\n", ISR, tek_uart_imr);
+#endif
+
+        /*
+         * Store the interrupt status for later usage.
+         *
+         * This does also queue disabled interrupts for later usage.
+         */
+        ISR = (tek_uart_isr |= ISR) & tek_uart_imr;
+
+        /*
+         * Run the handler for each interrupt source.
+         */
+        for ( i=0; i<UART_IRQS; i++ )
+        {
+                if ( ISR & (1<<i) )
+                {
+                        unsigned long flags;
+                        spin_lock_irqsave(tek_irq_lock, flags);
+
+                        tek_irq_stat[i]++;
+
+                        if ( irq_handlers[i].handler )
+                        {
+                                irq_handler_t handler = irq_handlers[i];
+                                spin_unlock_irqrestore(tek_irq_lock, flags);
+
+                                handler.handler(i, handler.dev_id, regs);
+                        }
+                        else
+                                spin_unlock_irqrestore(tek_irq_lock, flags);
+                        tek_uart_isr &= ~(1<<i);
+                }
+        }
+}
+
+/*
+ * Set an output line (to Low)
+ *
+ * Following values for the line are of special use:
+ *      3       connected to internal beeper
+ *      4       will reset the machine
+ */
+
+void tek_uart_set_op(int nr)
+{
+        unsigned long flags;
+        spin_lock_irqsave(tek_uart_lock, flags);
+
+        uart->wr.OutputSet = 1 << nr;
+
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+}
+
+/*
+ * Clear an output line (to High)
+ */
+
+void tek_uart_clr_op(int nr)
+{
+        unsigned long flags;
+        spin_lock_irqsave(tek_uart_lock, flags);
+
+        uart->wr.OutputClear = 1 << nr;
+
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+}
+
+/*
+ * Setup an interrupt handler managing all interrupt sources of the DUART.
+ */
+
+void __init tek_uart_init_IRQ(void)
+{
+        unsigned long flags;
+        spin_lock_irqsave(tek_uart_lock, flags);
+
+        /*
+         * Disable all interrupts
+         */
+        tek_uart_imr = 0;
+        __set_IMR();
+
+
+        /*
+         * Clear pending interrupts
+         */
+        tek_uart_isr = 0;
+        dummy = uart->rd.ISR;
+
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+
+        /*
+         * Register the interrupt handler
+         */
+        if ( request_irq(TEK_IRQ_UART, tek_irqhandler, IRQ_FLG_LOCK, "UART demux", NULL) )
+        {
+                panic("Could not register UART demux interrupt handler");
+        }
+}
+
+/*
+ * Enable a specific interrupt source of the DUART.
+ */
+
+static inline void enable_uart_irq(unsigned int irq)
+{
+        unsigned long flags;
+        spin_lock_irqsave(tek_uart_lock, flags);
+
+        tek_uart_imr |= (1<<irq);
+        __set_IMR();
+
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+}
+
+/*
+ * Disable a specific interrupt source of the DUART.
+ */
+
+static inline void disable_uart_irq(unsigned int irq)
+{
+        unsigned long flags;
+        spin_lock_irqsave(tek_uart_lock, flags);
+
+        tek_uart_imr &= ~(1<<irq);
+        __set_IMR();
+
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+}
+
+/*
+ * Register an interrupt handler for an interrupt source of the DUART.
+ *
+ * This is also called for system interrupts. These requests are passed
+ * to the generic function made available by the m68k port.
+ */
+
+int tek_uart_request_irq(unsigned int irq,
+                          void (*handler)(int, void *, struct pt_regs *),
+                          unsigned long flags,
+                          const char *devname, void *dev_id)
+{
+        unsigned long _flags;
+
+        if ( irq < SYS_IRQS )
+                return sys_request_irq(irq, handler, flags, devname, dev_id);
+        irq -= SYS_IRQS;
+
+        if ( irq >= UART_IRQS )
+                return -ENXIO;
+        if ( !handler )
+                return -EINVAL;
+
+        spin_lock_irqsave(tek_irq_lock, _flags);
+
+        if ( irq_handlers[irq].handler && (irq_handlers[irq].dev_id != dev_id) )        {
+                spin_unlock_irqrestore(tek_irq_lock, _flags);
+                return -EBUSY;
+        }
+
+        irq_handlers[irq].handler = handler;
+        irq_handlers[irq].flags   = flags;
+        irq_handlers[irq].devname = devname;
+        irq_handlers[irq].dev_id  = dev_id;
+
+        spin_unlock_irqrestore(tek_irq_lock, _flags);
+
+        enable_uart_irq(irq);
+
+        return 0;
+}
+
+/*
+ * Unregister an interrupt handler for an interrupt source of the DUART.
+ *
+ * This is also called for system interrupts. These requests are passed
+ * to the generic function made available by the m68k port.
+ */
+
+void tek_uart_free_irq(unsigned int irq, void *dev_id)
+{
+        unsigned long flags;
+
+        if ( irq < SYS_IRQS )
+                return sys_free_irq(irq, dev_id);
+        irq -= SYS_IRQS;
+
+        if ( irq >= UART_IRQS )
+                return /* -ENXIO */;
+
+        spin_lock_irqsave(tek_irq_lock, flags);
+
+        if ( !irq_handlers[irq].handler )
+                return /* -EINVAL */;
+
+        if ( dev_id != irq_handlers[irq].dev_id )
+                return /* -EPERM */;
+
+        disable_uart_irq(irq);
+        irq_handlers[irq].handler = NULL;
+
+        spin_unlock_irqrestore(tek_irq_lock, flags);
+}
+
+/*
+ * Wrapper for enabling an IRQ.
+ */
+
+void tek_uart_enable_irq(unsigned int irq)
+{
+        if ( irq < SYS_IRQS )
+                return;
+
+        enable_uart_irq(irq - SYS_IRQS);
+}
+
+/*
+ * Wrapper for disabling an IRQ.
+ */
+
+void tek_uart_disable_irq(unsigned int irq)
+{
+        if ( irq < SYS_IRQS )
+                return;
+
+        disable_uart_irq(irq - SYS_IRQS);
+}
+
+/*
+ * Build an ASCII list of the interrupt handlers registered and the call
+ * statistics. This part of the content of /proc/interrupts.
+ */
+
+int tek_uart_get_irq_list(char *buf)
+{
+        int i, len = 0;
+        unsigned long flags;
+        spin_lock_irqsave(tek_irq_lock, flags);
+
+        for ( i=0; i < UART_IRQS; i++ )
+        {
+                if ( irq_handlers[i].handler )
+                {
+                        len += sprintf(buf+len, "uart %2d: %10u ", i, tek_irq_stat[i]);
+                        len += sprintf(buf+len, "  ");
+                        len += sprintf(buf+len, "%s\n", irq_handlers[i].devname);
+                }
+        }
+        spin_unlock_irqrestore(tek_irq_lock, flags);
+        return len;
+}
+
+#ifndef USE_VIDEO_REFRESH_AS_TIMER
+
+static void tek_irq2(int irq, void *dev_id, struct pt_regs *regs)
+{
+        /*
+         * Acknowledge the interrupt
+         */
+        (*(volatile unsigned char *)(0xFFB00000))++;
+
+}
+
+/*
+ * Setup a timer interrupt.
+ */
+void __init tek_uart_setup_timer(void (*handler)(int, void *, struct pt_regs *))
+{
+        unsigned long flags;
+
+        /*
+         * Calculate the divider of the clock interval
+         */
+        if ( HZ < 32 )
+        {
+                /*
+                 * Use 115.2k base clock.
+                 *
+                 * Do not permit frequencies <2Hz, they can be provided
+                 * by further software dividing only and are not very
+                 * usefull.
+                 */
+                if ( HZ < 2 )
+                        panic("I will not provide such a slow timer");
+
+                timer_mode |= 0x70;
+                tek_timer = 115200 / HZ;
+        }
+        else if ( HZ <= 57600 )
+        {
+                /*
+                 * Use 115.2k * 16 base clock
+                 */
+                timer_mode |= 0x60;
+                tek_timer = (115200*16) / HZ;
+        }
+        else
+                /*
+                 * We can not provide a faster timer.
+                 */
+                panic("Old hardware is no ferrari");
+
+        /*
+         * And setup an handler for the video refresh.
+         */
+        if ( request_irq(TEK_IRQ_VIDEO, tek_irq2, IRQ_FLG_LOCK, "display", NULL) )
+                panic("Could not register display interrupt");
+
+        /*
+         * Setup an handler for the timer interrupt.
+         */
+        if ( request_irq(TEK_IRQ_TIMER_A, handler, IRQ_FLG_LOCK, "timer", NULL) )
+                panic("Could not register timer interrupt");
+
+        spin_lock_irqsave(tek_uart_lock, flags);
+
+        /*
+         * Start the timer.
+         */
+        dummy = uart->rd.CounterStop;
+        uart->wr.ACR = timer_mode;
+        uart->wr.CRUR = tek_timer >> 8;
+        uart->wr.CTLR = tek_timer & 255;
+        dummy = uart->rd.CounterStart;
+
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+
+        /*
+         * Enable the video refresh interrupt
+         */
+        (*(volatile unsigned char *)(0xFFB00000))++;
+}
+#endif
+
+/*
+ * Output a character on the serial port A.
+ *
+ * This routine is called from interrupt and non-interrupt contexts.
+ */
+
+void tek_uart_putchar(int channel, int c, int waitloop)
+{
+        unsigned long flags;
+        spin_lock_irqsave(tek_uart_lock, flags);
+
+        channel &= 1;
+
+        if ( waitloop )
+        {
+//              disable_uart_irq(channel ? 4 : 0);
+                while ( !((channel ? uart->rd.SRB : uart->rd.SRA) & 4) )
+                        ;
+        }
+
+        (channel ? uart->wr.THRB : uart->wr.THRA) = (u_char)c;
+
+        if ( waitloop )
+        {
+                while ( !((channel ? uart->rd.SRB : uart->rd.SRA) & 4) )
+                        ;
+//              enable_uart_irq(channel ? 4 : 0);
+        }
+
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+}
+

drivers/char/16c552.h

@@ +1 @@
+/*
+ * Definitions for the 16c552 DACE
+ * (dual-asynchronous-communications-element) used on the GVP
+ * IO-Extender. 
+ *
+ * Basically this is two 16c550 uarts's and a parallel port, which is
+ * why the serial definitions should be valid for the 16c550 uart
+ * aswell.
+ *
+ * Data was taken from National Semiconductors duart 16c552
+ * data-sheets and the Texas Instruments DACE 16c552 data-sheets (the
+ * NS version of the chip is _non_ standard and their data-sheets did
+ * cost me several wasted hours of work).
+ *
+ * This file is (C) 1995 Jes Sorensen (jds@kom.auc.dk)
+ *
+ * Moved from drivers/char/ to include/linux/, because it's useful
+ * on more than just the one card. I'm using it on the hp300 DCA
+ * serial driver, for example.  
+ *      -- Peter Maydell <pmaydell@chiark.greenend.org.uk> 05/1998
+ */
+
+#ifndef _16C552_H_
+#define _16C552_H_
+
+/* Serial stuff */
+
+struct uart_16c550 {
+        volatile u_char skip0;
+        volatile u_char RBR;
+        volatile u_char skip1;
+        volatile u_char IER;
+        volatile u_char skip2;
+        volatile u_char IIR;
+        volatile u_char skip3;
+        volatile u_char LCR;
+        volatile u_char skip4;
+        volatile u_char MCR;
+        volatile u_char skip5;
+        volatile u_char LSR;
+        volatile u_char skip6;
+        volatile u_char MSR;
+        volatile u_char skip7;
+        volatile u_char SCR;
+};
+
+#define THR RBR
+#define FCR IIR
+#define DLL RBR
+#define DLM IER
+#define AFR IIR
+
+/*
+ * Bit-defines for the various registers.
+ */
+
+
+/* IER */
+
+#define ERDAI         (1<<0)
+#define ETHREI        (1<<1)
+#define ELSI          (1<<2)
+#define EMSI          (1<<3)
+
+/* IIR - Interrupt Ident. Register */
+
+#define IRQ_PEND      (1<<0) /* NOTE: IRQ_PEND=0 implies irq pending */
+#define IRQ_ID1       (1<<1)
+#define IRQ_ID2       (1<<2)
+#define IRQ_ID3       (1<<3)
+#define FIFO_ENA0     (1<<6) /* Both these are set when FCR(1<<0)=1 */
+#define FIFO_ENA1     (1<<7)
+
+#define IRQ_RLS  (IRQ_ID1 | IRQ_ID2)
+#define IRQ_RDA  (IRQ_ID2)
+#define IRQ_CTI  (IRQ_ID2 | IRQ_ID3)
+#define IRQ_THRE (IRQ_ID1)
+#define IRQ_MS   0
+
+/* FCR - FIFO Control Register */
+
+#define FIFO_ENA      (1<<0)
+#define RCVR_FIFO_RES (1<<1)
+#define XMIT_FIFO_RES (1<<2)
+#define DMA_MODE_SEL  (1<<3)
+#define RCVR_TRIG_LSB (1<<6)
+#define RCVR_TRIG_MSB (1<<7)
+
+#define FIFO_TRIG_1   0x00
+#define FIFO_TRIG_4   RCVR_TRIG_LSB
+#define FIFO_TRIG_8   RCVR_TRIG_MSB
+#define FIFO_TRIG_14  RCVR_TRIG_LSB|RCVR_TRIG_MSB
+
+/* LCR - Line Control Register */
+
+#define WLS0          (1<<0)
+#define WLS1          (1<<1)
+#define STB           (1<<2)
+#define PEN           (1<<3)
+#define EPS           (1<<4)
+#define STICK_PARITY  (1<<5)
+#define SET_BREAK     (1<<6)
+#define DLAB          (1<<7)
+
+#define data_5bit      0x00
+#define data_6bit      0x01
+#define data_7bit      0x02
+#define data_8bit      0x03
+
+
+/* MCR - Modem Control Register */
+
+#define DTR           (1<<0)
+#define RTS           (1<<1)
+#define OUT1          (1<<2)
+#define OUT2          (1<<3)
+#define LOOP          (1<<4)
+
+/* LSR - Line Status Register */
+
+#define DR            (1<<0)
+#define OE            (1<<1)
+#define PE            (1<<2)
+#define FE            (1<<3)
+#define BI            (1<<4)
+#define THRE          (1<<5)
+#define TEMT          (1<<6)
+#define RCVR_FIFO_ERR (1<<7)
+
+/* MSR - Modem Status Register */
+
+#define DCTS          (1<<0)
+#define DDSR          (1<<1)
+#define TERI          (1<<2)
+#define DDCD          (1<<3)
+#define CTS           (1<<4)
+#define DSR           (1<<5)
+#define RING_I        (1<<6)
+#define DCD           (1<<7)
+
+/* AFR - Alternate Function Register */
+
+#define CONCUR_WRITE  (1<<0)
+#define BAUDOUT       (1<<1)
+#define RXRDY         (1<<2)
+
+/* Parallel stuff */
+
+/*
+ * Unfortunately National Semiconductors did not supply the
+ * specifications for the parallel port in the chip :-(
+ * TI succed though, so here they are :-)
+ *
+ * Defines for the bits can be found by including <linux/lp.h>
+ */
+struct IOEXT_par {
+        volatile u_char skip0;
+        volatile u_char DATA;
+        volatile u_char skip1;
+        volatile u_char STATUS;
+        volatile u_char skip2;
+        volatile u_char CTRL;
+};
+
+#endif

drivers/char/Makefile

@@ -321 +321 @@
 obj-$(CONFIG_WAFER_WDT) += wafer5823wdt.o
 obj-$(CONFIG_SOFT_WATCHDOG) += softdog.o
 obj-$(CONFIG_AMD7XX_TCO) += amd7xx_tco.o
+obj-$(CONFIG_SCC2692) += generic_serial.o scc2692.o
 obj-$(CONFIG_INDYDOG) += indydog.o
 obj-$(CONFIG_8xx_WDT) += mpc8xx_wdt.o
 

drivers/char/ioext.h

@@ +1 @@
+/*
+ * Shared data structure for GVP IO-Extender support.
+ *
+ * Merge of ioext.h and ser_ioext.h
+ */
+#ifndef _IOEXT_H_
+#define _IOEXT_H_
+
+#include <linux/config.h>
+#include <linux/netdevice.h>
+
+#include "16c552.h"
+
+#define MAX_IOEXT 5 /*
+                     * The maximum number of io-extenders is 5, as you
+                     * can't have more than 5 ZII boards in any Amiga.
+                     */
+
+#define UART_CLK 7372800
+
+#define IOEXT_BAUD_BASE (UART_CLK / 16)
+
+#define IOEXT_MAX_LINES 2
+
+#define IOEXT_PAR_PLIP  0x0001
+#define IOEXT_PAR_LP    0x0002
+
+
+/*
+ * Macros for the serial driver.
+ */
+#define curruart(info) ((struct uart_16c550 *)(info->port))
+
+#define ser_DTRon(info)  curruart(info)->MCR |=  DTR
+#define ser_RTSon(info)  curruart(info)->MCR |=  RTS
+#define ser_DTRoff(info) curruart(info)->MCR &= ~DTR
+#define ser_RTSoff(info) curruart(info)->MCR &= ~RTS
+
+
+/*
+ * CNTR defines (copied from the GVP SCSI-driver file gvp11.h
+ */
+#define GVP_BUSY        (1<<0)
+#define GVP_IRQ_PEND    (1<<1)
+#define GVP_IRQ_ENA     (1<<3)
+#define GVP_DIR_WRITE   (1<<4)
+
+
+/*
+ * CTRL defines 
+ */
+#define PORT0_MIDI   (1<<0)  /* CLR = DRIVERS         SET = MIDI      */
+#define PORT1_MIDI   (1<<1)  /* CLR = DRIVERS         SET = MIDI      */
+#define PORT0_DRIVER (1<<2)  /* CLR = RS232,          SET = MIDI      */
+#define PORT1_DRIVER (1<<3)  /* CLR = RS232,          SET = MIDI      */
+#define IRQ_SEL      (1<<4)  /* CLR = INT2,           SET = INT6      */
+#define ROM_BANK_SEL (1<<5)  /* CLR = LOW 32K,        SET = HIGH 32K  */
+#define PORT0_CTRL   (1<<6)  /* CLR = RTSx or RXRDYx, SET = RTSx ONLY */
+#define PORT1_CTRL   (1<<7)  /* CLR = RTSx or RXRDYx, SET = RTSx ONLY */
+
+
+/*
+ * This is the struct describing the registers on the IO-Extender.
+ * NOTE: The board uses a dual uart (16c552), which should be equal to
+ * two 16c550 uarts.
+ */
+typedef struct {
+        char gap0[0x41];
+        volatile unsigned char CNTR;    /* GVP DMAC CNTR (status register)   */
+        char gap1[0x11e];
+        struct uart_16c550 uart0;       /* The first uart                    */
+        char gap2[0xf0];
+        struct uart_16c550 uart1;       /* The second uart                   */
+        char gap3[0xf0];
+        struct IOEXT_par par;           /* The parallel port                 */
+        char gap4[0xfb];
+        volatile unsigned char CTRL;    /* The control-register on the board */
+} IOEXT_struct;
+
+
+typedef struct {
+        int num_uarts;
+        int line[IOEXT_MAX_LINES];
+        volatile struct uart_16c550 *uart[IOEXT_MAX_LINES];
+        IOEXT_struct *board;
+        int spurious_count;
+        unsigned char par_use;          /* IOEXT_PAR_xxx */
+#if defined(CONFIG_GVPIOEXT_PLIP) || defined(CONFIG_GVPIOEXT_PLIP_MODULE)
+        struct nt_device *dev;
+#endif
+#if defined(CONFIG_GVPIOEXT_LP) || defined(CONFIG_GVPIOEXT_LP_MODULE)
+        struct lp_struct *lp_table;
+        int lp_dev;
+        int lp_interrupt;
+#endif
+} IOExtInfoType;
+
+/* Number of detected boards.  */
+extern int ioext_num;
+extern IOExtInfoType ioext_info[MAX_IOEXT];
+
+void ioext_plip_interrupt(struct net_device *dev, int *spurious_count);
+void ioext_lp_interrupt(int dev, int *spurious_count);
+
+extern struct net_device ioext_dev_plip[3];
+extern struct lp_struct ioext_lp_table[1];
+
+#endif

drivers/char/mc68681.h

@@ +1 @@
+#ifndef _MC68681_H_
+#define _MC68681_H_
+
+/* 
+ * This describes an MC68681 DUART. It has almost only overlayed registers, which
+ * the structure very ugly.
+ * Note that the ri-register isn't really a register of the duart but a kludge of bsc
+ * to make the ring indicator available.
+ * 
+ * The data came from the MFC-31-Developer Kit (from Ralph Seidel,
+ * zodiac@darkness.gun.de) and the data sheet of Phillip's clone device (SCN68681)
+ * (from Richard Hirst, srh@gpt.co.uk)
+ *
+ * 11.11.95 copyright Joerg Dorchain (dorchain@mpi-sb.mpg.de)
+ *
+ */
+
+struct duarthalf {
+union {
+volatile u_char mr1; /* rw */
+volatile u_char mr2; /* rw */
+}  mr;
+volatile u_char ri;   /* special, read */
+union {
+volatile u_char sr;  /* read */
+volatile u_char csr; /* write */
+} sr_csr;
+u_char pad1;
+volatile u_char cr; /* write */
+u_char pad2;
+union {
+volatile u_char rhr; /* read */
+volatile u_char thr; /* write */
+} hr;
+u_char pad3;
+};
+
+struct duart {
+struct duarthalf pa;
+union {
+volatile u_char ipcr; /* read */
+volatile u_char acr;  /* write */
+} ipcr_acr;
+u_char pad1;
+union {
+volatile u_char isr; /* read */
+volatile u_char imr; /* write */
+} ir;
+u_char pad2;
+volatile u_char ctu;
+u_char pad3;
+volatile u_char ctl;
+u_char pad4;
+struct duarthalf pb;
+volatile u_char ivr;
+u_char pad5;
+union {
+volatile u_char ipr; /* read */
+volatile u_char opcr; /* write */
+} ipr_opcr;
+u_char pad6;
+union {
+volatile u_char start; /* read */
+volatile u_char sopc; /* write */
+} start_sopc;
+u_char pad7;
+union {
+volatile u_char stop; /* read */
+volatile u_char ropc; /* write */
+} stop_ropc;
+u_char pad8;
+};
+
+#define MR1_BITS 3
+#define MR1_5BITS 0
+#define MR1_6BITS 1
+#define MR1_7BITS 2
+#define MR1_8BITS 3
+
+#define MR1_PARITY_ODD 4
+
+#define MR1_PARITY 24
+#define MR1_PARITY_WITH 0
+#define MR1_PARITY_FORCE 8
+#define MR1_PARITY_NO 16
+#define MR1_PARITY_MULTIDROP 24
+
+#define MR1_ERROR_BLOCK 32
+#define MR1_FFULL_IRQ 64
+#define MR1_RxRTS_ON 128
+
+#define MR2_STOPS 15
+#define MR2_1STOP 7
+#define MR2_2STOP 15
+
+#define MR2_CTS_ON 16
+#define MR2_TxRTS_ON 32
+
+#define MR2_MODE 192
+#define MR2_NORMAL 0
+#define MR2_ECHO 64
+#define MR2_LOCALLOOP 128
+#define MR2_REMOTELOOP 192
+
+#define CR_RXCOMMAND 3
+#define CR_NONE 0
+#define CR_RX_ON 1
+#define CR_RX_OFF 2
+#define CR_TXCOMMAND 12
+#define CR_TX_ON 4
+#define CR_TX_OFF 8
+#define CR_MISC 112
+#define CR_RESET_MR 16
+#define CR_RESET_RX 32
+#define CR_RESET_TX 48
+#define CR_RESET_ERR 64
+#define CR_RESET_BREAK 80
+#define CR_START_BREAK 96
+#define CR_STOP_BREAK 112
+
+#define SR_RXRDY 1
+#define SR_FFULL 2
+#define SR_TXRDY 4
+#define SR_TXEMPT 8
+#define SR_OVERRUN 16
+#define SR_PARITY 32
+#define SR_FRAMING 64
+#define SR_BREAK 128
+
+
+#endif

drivers/char/pc_keyb.c

@@ -898 +898 @@
 
 void __init pckbd_init_hw(void)
 {
+        unsigned long flags;
+
         if (!kbd_controller_present()) {
                 kbd_exists = 0;
                 return;
@@ -905 +907 @@
 
         kbd_request_region();
 
+        save_flags(flags);
+        cli();
+
         /* Flush any pending input. */
         kbd_clear_input();
 
@@ -922 +927 @@
 
         /* Ok, finally allocate the IRQ, and off we go.. */
         kbd_request_irq(keyboard_interrupt);
+
+        restore_flags(flags);
 }
 
 #if defined CONFIG_PSMOUSE

drivers/char/plip_ioext.c

@@ +1 @@
+/*
+ * plip_ioext: A parallel port "network" driver for GVP IO-Extender.
+ *
+ * Authors:     See drivers/net/plip.c
+ *              IO-Extender version by Steve Bennett, <msteveb@ozemail.com.au>
+ *
+ * This driver is for use with a 5-bit cable (LapLink (R) cable).
+ */
+
+static const char *version = "NET3 PLIP version 2.2/m68k";
+
+#define __NO_VERSION__
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/termios.h>
+#include <linux/tty.h>
+#include <linux/serial.h>
+
+#include <asm/setup.h>
+#include <asm/irq.h>
+#include <asm/amigahw.h>
+#include <asm/amigaints.h>
+#include <linux/zorro.h>
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/fcntl.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/if_ether.h>
+
+#include <asm/system.h>
+
+#include <linux/in.h>
+#include <linux/delay.h>
+/*#include <linux/lp_m68k.h>*/
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/inetdevice.h>
+#include <linux/skbuff.h>
+#include <linux/if_plip.h>
+
+#include <linux/tqueue.h>
+#include <linux/ioport.h>
+#include <asm/bitops.h>
+#include <asm/byteorder.h>
+
+#include "ioext.h"
+
+#define DEBUG 0
+
+/* Map 'struct device *' to our control structure */
+#define PLIP_DEV(DEV) (&ioext_info[(DEV)->irq])
+
+/************************************************************************
+**
+** PLIP definitions
+**
+*************************************************************************
+*/
+
+/* Use 0 for production, 1 for verification, >2 for debug */
+#ifndef NET_DEBUG
+#define NET_DEBUG 2
+#endif
+static unsigned int net_debug = NET_DEBUG;
+
+/* In micro second */
+#define PLIP_DELAY_UNIT       1
+
+/* Connection time out = PLIP_TRIGGER_WAIT * PLIP_DELAY_UNIT usec */
+#define PLIP_TRIGGER_WAIT        500
+
+/* Nibble time out = PLIP_NIBBLE_WAIT * PLIP_DELAY_UNIT usec */
+#define PLIP_NIBBLE_WAIT        3000
+
+#define PAR_DATA(dev)     ((dev)->base_addr+0)
+#define PAR_STATUS(dev)   ((dev)->base_addr+2)
+#define PAR_CONTROL(dev)  ((dev)->base_addr+4)
+
+static void enable_par_irq(struct device *dev, int on);
+static int plip_init(struct device *dev);
+
+/* Bottom halfs */
+static void plip_kick_bh(struct device *dev);
+static void plip_bh(struct device *dev);
+
+/* Functions for DEV methods */
+static int plip_rebuild_header(struct sk_buff *skb);
+static int plip_tx_packet(struct sk_buff *skb, struct device *dev);
+static int plip_open(struct device *dev);
+static int plip_close(struct device *dev);
+static struct enet_statistics *plip_get_stats(struct device *dev);
+static int plip_config(struct device *dev, struct ifmap *map);
+static int plip_ioctl(struct device *dev, struct ifreq *ifr, int cmd);
+
+enum plip_connection_state {
+        PLIP_CN_NONE=0,
+        PLIP_CN_RECEIVE,
+        PLIP_CN_SEND,
+        PLIP_CN_CLOSING,
+        PLIP_CN_ERROR
+};
+
+enum plip_packet_state {
+        PLIP_PK_DONE=0,
+        PLIP_PK_TRIGGER,
+        PLIP_PK_LENGTH_LSB,
+        PLIP_PK_LENGTH_MSB,
+        PLIP_PK_DATA,
+        PLIP_PK_CHECKSUM
+};
+
+enum plip_nibble_state {
+        PLIP_NB_BEGIN,
+        PLIP_NB_1,
+        PLIP_NB_2,
+};
+
+struct plip_local {
+        enum plip_packet_state state;
+        enum plip_nibble_state nibble;
+        union {
+                struct {
+#if defined(__LITTLE_ENDIAN)
+                        unsigned char lsb;
+                        unsigned char msb;
+#elif defined(__BIG_ENDIAN)
+                        unsigned char msb;
+                        unsigned char lsb;
+#else
+#error  "Please fix the endianness defines in <asm/byteorder.h>"
+#endif            
+                } b;
+                unsigned short h;
+        } length;
+        unsigned short byte;
+        unsigned char  checksum;
+        unsigned char  data;
+        struct sk_buff *skb;
+};
+
+struct net_local {
+        struct enet_statistics enet_stats;
+        struct tq_struct immediate;
+        struct tq_struct deferred;
+        struct plip_local snd_data;
+        struct plip_local rcv_data;
+        unsigned long  trigger;
+        unsigned long  nibble;
+        enum plip_connection_state connection;
+        unsigned short timeout_count;
+        char is_deferred;
+        int (*orig_rebuild_header)(struct sk_buff *skb);
+};
+
+struct device ioext_dev_plip[] = {
+        {
+                "plip0",
+                0, 0, 0, 0,    /* memory */
+                0, 0,    /* base, irq */
+                0, 0, 0, NULL, plip_init 
+        },
+        {
+                "plip1",
+                0, 0, 0, 0,    /* memory */
+                0, 0,    /* base, irq */
+                0, 0, 0, NULL, plip_init 
+        },
+        {
+                "plip2",
+                0, 0, 0, 0,    /* memory */
+                0, 0,    /* base, irq */
+                0, 0, 0, NULL, plip_init 
+        }
+};
+
+/*
+ * Check for and handle an interrupt for this PLIP device.
+ *
+ */
+void ioext_plip_interrupt(struct device *dev, int *spurious_count)
+{
+        struct net_local *nl;
+        struct plip_local *rcv;
+        unsigned char c0;
+        unsigned long flags;
+
+        nl = (struct net_local *)dev->priv;
+        rcv = &nl->rcv_data;
+
+        c0 = z_readb(PAR_STATUS(dev));
+
+        if (dev->interrupt) {
+                return;
+        }
+
+        if ((c0 & 0xf8) != 0xc0) {
+                /* Not for us */
+                ++*spurious_count;
+                return;
+        }
+
+        *spurious_count = 0;
+        dev->interrupt = 1;
+
+        save_flags(flags);
+        cli();
+
+        switch (nl->connection) {
+        case PLIP_CN_CLOSING:
+                dev->tbusy = 0;
+        case PLIP_CN_NONE:
+        case PLIP_CN_SEND:
+                dev->last_rx = jiffies;
+                rcv->state = PLIP_PK_TRIGGER;
+                nl->connection = PLIP_CN_RECEIVE;
+                nl->timeout_count = 0;
+                queue_task(&nl->immediate, &tq_immediate);
+                mark_bh(IMMEDIATE_BH);
+                restore_flags(flags);
+#if 0
+                printk("%s: receive irq in SEND/NONE/CLOSING (%d) ok\n",
+                       dev->name, nl->connection);
+#endif
+                break;
+
+        case PLIP_CN_RECEIVE:
+                restore_flags(flags);
+                printk("%s: receive interrupt when receiving packet\n",
+                       dev->name);
+                break;
+
+        case PLIP_CN_ERROR:
+                restore_flags(flags);
+                printk("%s: receive interrupt in error state\n", dev->name);
+                break;
+        }
+}
+
+
 
+/* Bottom half handler for the delayed request.
+   This routine is kicked by do_timer().
+   Request `plip_bh' to be invoked. */
+static void
+plip_kick_bh(struct device *dev)
+{
+        struct net_local *nl = (struct net_local *)dev->priv;
+
+        if (nl->is_deferred) {
+                queue_task(&nl->immediate, &tq_immediate);
+                mark_bh(IMMEDIATE_BH);
+        }
+}
+
+/* Forward declarations of internal routines */
+static int plip_none(struct device *, struct net_local *,
+                     struct plip_local *, struct plip_local *);
+static int plip_receive_packet(struct device *, struct net_local *,
+                               struct plip_local *, struct plip_local *);
+static int plip_send_packet(struct device *, struct net_local *,
+                            struct plip_local *, struct plip_local *);
+static int plip_connection_close(struct device *, struct net_local *,
+                                 struct plip_local *, struct plip_local *);
+static int plip_error(struct device *, struct net_local *,
+                      struct plip_local *, struct plip_local *);
+static int plip_bh_timeout_error(struct device *dev, struct net_local *nl,
+                                 struct plip_local *snd,
+                                 struct plip_local *rcv,
+                                 int error);
+
+#define OK        0
+#define TIMEOUT   1
+#define ERROR     2
+
+typedef int (*plip_func)(struct device *dev, struct net_local *nl,
+                         struct plip_local *snd, struct plip_local *rcv);
+
+static plip_func connection_state_table[] =
+{
+        plip_none,
+        plip_receive_packet,
+        plip_send_packet,
+        plip_connection_close,
+        plip_error
+};
+
+/*
+** enable_par_irq()
+** 
+** Enable or disable parallel irq for 'dev' according to 'on'.
+**
+** It is NOT possible to disable only the parallel irq.
+** So we disable the board interrupt instead. This means that
+** during reception of a PLIP packet, no serial interrupts can
+** happen. Sorry.
+*/
+static void enable_par_irq(struct device *dev, int on)
+{
+        if (on) {
+                PLIP_DEV(dev)->board->CNTR |= GVP_IRQ_ENA;
+        }
+        else {
+                PLIP_DEV(dev)->board->CNTR &= ~GVP_IRQ_ENA;
+        }
+}
+
+/* Bottom half handler of PLIP. */
+static void
+plip_bh(struct device *dev)
+{
+        struct net_local *nl = (struct net_local *)dev->priv;
+        struct plip_local *snd = &nl->snd_data;
+        struct plip_local *rcv = &nl->rcv_data;
+        plip_func f;
+        int r;
+
+        nl->is_deferred = 0;
+        f = connection_state_table[nl->connection];
+        if ((r = (*f)(dev, nl, snd, rcv)) != OK
+            && (r = plip_bh_timeout_error(dev, nl, snd, rcv, r)) != OK) {
+                nl->is_deferred = 1;
+                queue_task(&nl->deferred, &tq_timer);
+        }
+}
+
+static int
+plip_bh_timeout_error(struct device *dev, struct net_local *nl,
+                      struct plip_local *snd, struct plip_local *rcv,
+                      int error)
+{
+        unsigned char c0;
+        unsigned long flags;
+
+        save_flags(flags);
+        cli();
+        if (nl->connection == PLIP_CN_SEND) {
+
+                if (error != ERROR) { /* Timeout */
+                        nl->timeout_count++;
+                        if ((snd->state == PLIP_PK_TRIGGER
+                             && nl->timeout_count <= 10)
+                            || nl->timeout_count <= 3) {
+                                restore_flags(flags);
+                                /* Try again later */
+                                return TIMEOUT;
+                        }
+                        c0 = z_readb(PAR_STATUS(dev));
+                        printk(KERN_INFO "%s: transmit timeout(%d,%02x)\n",
+                               dev->name, snd->state, c0);
+                }
+                nl->enet_stats.tx_errors++;
+                nl->enet_stats.tx_aborted_errors++;
+        } else if (nl->connection == PLIP_CN_RECEIVE) {
+                if (rcv->state == PLIP_PK_TRIGGER) {
+                        /* Transmission was interrupted. */
+                        restore_flags(flags);
+                        return OK;
+                }
+                if (error != ERROR) { /* Timeout */
+                        if (++nl->timeout_count <= 3) {
+                                restore_flags(flags);
+                                /* Try again later */
+                                return TIMEOUT;
+                        }
+                        c0 = z_readb(PAR_STATUS(dev));
+                        printk(KERN_INFO "%s: receive timeout(%d,%02x)\n",
+                               dev->name, rcv->state, c0);
+                }
+                nl->enet_stats.rx_dropped++;
+        }
+        rcv->state = PLIP_PK_DONE;
+        if (rcv->skb) {
+                kfree_skb(rcv->skb);
+                rcv->skb = NULL;
+        }
+        snd->state = PLIP_PK_DONE;
+        if (snd->skb) {
+                dev_kfree_skb(snd->skb);
+                snd->skb = NULL;
+        }
+        enable_par_irq(dev, 0);
+        dev->tbusy = 1;
+        nl->connection = PLIP_CN_ERROR;
+        z_writeb(0x00, PAR_DATA(dev));
+        restore_flags(flags);
+
+        return TIMEOUT;
+}
+
+static int
+plip_none(struct device *dev, struct net_local *nl,
+          struct plip_local *snd, struct plip_local *rcv)
+{
+        return OK;
+}
+
+/* PLIP_RECEIVE --- receive a byte(two nibbles)
+   Returns OK on success, TIMEOUT on timeout */
+inline static int
+plip_receive(struct device *dev, unsigned short nibble_timeout, 
+             enum plip_nibble_state *ns_p, unsigned char *data_p)
+{
+        unsigned char c0, c1;
+        unsigned int cx;
+
+        switch (*ns_p) {
+        case PLIP_NB_BEGIN:
+                cx = nibble_timeout;
+                while (1) {
+                        c0 = z_readb(PAR_STATUS(dev));
+                        udelay(PLIP_DELAY_UNIT);
+                        if ((c0 & 0x80) == 0) {
+                                c1 = z_readb(PAR_STATUS(dev));
+                                if (c0 == c1)
+                                        break;
+                        }
+                        if (--cx == 0)
+                                return TIMEOUT;
+                }
+#if 0
+                printk("received first nybble: %02X -> %02X\n",
+                       c0, (c0 >> 3) & 0x0F);
+#endif
+                *data_p = (c0 >> 3) & 0x0f;
+                z_writeb(0x10, PAR_DATA(dev)); /* send ACK */
+                *ns_p = PLIP_NB_1;
+
+        case PLIP_NB_1:
+                cx = nibble_timeout;
+                while (1) {
+                        c0 = z_readb(PAR_STATUS(dev));
+                        udelay(PLIP_DELAY_UNIT);
+                        if (c0 & 0x80) {
+                                c1 = z_readb(PAR_STATUS(dev));
+                                if (c0 == c1)
+                                        break;
+                        }
+                        if (--cx == 0)
+                                return TIMEOUT;
+                }
+#if 0
+                printk("received second nybble: %02X -> %02X\n",
+                       c0, (c0 << 1) & 0xF0);
+#endif
+                *data_p |= (c0 << 1) & 0xf0;
+                z_writeb(0x00, PAR_DATA(dev)); /* send ACK */
+                *ns_p = PLIP_NB_BEGIN;
+        case PLIP_NB_2:
+                break;
+        }
+        return OK;
+}
+
+/* PLIP_RECEIVE_PACKET --- receive a packet */
+static int
+plip_receive_packet(struct device *dev, struct net_local *nl,
+                    struct plip_local *snd, struct plip_local *rcv)
+{
+        unsigned short nibble_timeout = nl->nibble;
+        unsigned char *lbuf;
+        unsigned long flags;
+
+        switch (rcv->state) {
+        case PLIP_PK_TRIGGER:
+                enable_par_irq(dev, 0);
+                dev->interrupt = 0;
+                z_writeb(0x01, PAR_DATA(dev)); /* send ACK */
+                if (net_debug > 2)
+                        printk(KERN_DEBUG "%s: receive start\n", dev->name);
+                rcv->state = PLIP_PK_LENGTH_LSB;
+                rcv->nibble = PLIP_NB_BEGIN;
+
+        case PLIP_PK_LENGTH_LSB:
+                if (snd->state != PLIP_PK_DONE) {
+                        if (plip_receive(dev, nl->trigger,
+                                         &rcv->nibble, &rcv->length.b.lsb)) {
+                                /* collision, here dev->tbusy == 1 */
+                                rcv->state = PLIP_PK_DONE;
+                                nl->is_deferred = 1;
+                                nl->connection = PLIP_CN_SEND;
+                                queue_task(&nl->deferred, &tq_timer);
+                                enable_par_irq(dev, 1);
+                                return OK;
+                        }
+                } else {
+                        if (plip_receive(dev, nibble_timeout, 
+                                         &rcv->nibble, &rcv->length.b.lsb))
+                                return TIMEOUT;
+                }
+                rcv->state = PLIP_PK_LENGTH_MSB;
+
+        case PLIP_PK_LENGTH_MSB:
+                if (plip_receive(dev, nibble_timeout, 
+                                 &rcv->nibble, &rcv->length.b.msb))
+                        return TIMEOUT;
+                if (rcv->length.h > dev->mtu + dev->hard_header_len
+                    || rcv->length.h < 8) {
+                        printk(KERN_INFO "%s: bogus packet size %d.\n",
+                               dev->name, rcv->length.h);
+                        return ERROR;
+                }
+                /* Malloc up new buffer. */
+                rcv->skb = dev_alloc_skb(rcv->length.h);
+                if (rcv->skb == NULL) {
+                        printk(KERN_INFO "%s: Memory squeeze.\n", dev->name);
+                        return ERROR;
+                }
+                skb_put(rcv->skb,rcv->length.h);
+                rcv->skb->dev = dev;
+                rcv->state = PLIP_PK_DATA;
+                rcv->byte = 0;
+                rcv->checksum = 0;
+
+        case PLIP_PK_DATA:
+                lbuf = rcv->skb->data;
+                do
+                        if (plip_receive(dev, nibble_timeout, 
+                                         &rcv->nibble, &lbuf[rcv->byte]))
+                                return TIMEOUT;
+                while (++rcv->byte < rcv->length.h);
+                do
+                        rcv->checksum += lbuf[--rcv->byte];
+                while (rcv->byte);
+                rcv->state = PLIP_PK_CHECKSUM;
+
+        case PLIP_PK_CHECKSUM:
+                if (plip_receive(dev, nibble_timeout, 
+                                 &rcv->nibble, &rcv->data))
+                        return TIMEOUT;
+                if (rcv->data != rcv->checksum) {
+                        nl->enet_stats.rx_crc_errors++;
+                        if (net_debug)
+                                printk(KERN_INFO "%s: checksum error\n",
+                                       dev->name);
+                        return ERROR;
+                }
+                rcv->state = PLIP_PK_DONE;
+
+        case PLIP_PK_DONE:
+                /* Inform the upper layer for the arrival of a packet. */
+                rcv->skb->protocol=eth_type_trans(rcv->skb, dev);
+                netif_rx(rcv->skb);
+                nl->enet_stats.rx_packets++;
+                rcv->skb = NULL;
+                if (net_debug > 2)
+                        printk(KERN_DEBUG "%s: receive end\n", dev->name);
+
+                /* Close the connection. */
+                z_writeb (0x00, PAR_DATA(dev));
+
+                save_flags(flags);
+                cli();
+                if (snd->state != PLIP_PK_DONE) {
+                        nl->connection = PLIP_CN_SEND;
+                        restore_flags(flags);
+                        queue_task(&nl->immediate, &tq_immediate);
+                        mark_bh(IMMEDIATE_BH);
+                        enable_par_irq(dev, 1);
+                        return OK;
+                } else {
+                        nl->connection = PLIP_CN_NONE;
+                        restore_flags(flags);
+                        enable_par_irq(dev, 1);
+                        return OK;
+                }
+        }
+        return OK;
+}
+
+/* PLIP_SEND --- send a byte (two nibbles) 
+   Returns OK on success, TIMEOUT when timeout    */
+inline static int
+plip_send(struct device *dev, unsigned short nibble_timeout, 
+          enum plip_nibble_state *ns_p, unsigned char data)
+{
+        unsigned char c0;
+        unsigned int cx;
+
+        switch (*ns_p) {
+        case PLIP_NB_BEGIN:
+                z_writeb((data & 0x0f), PAR_DATA(dev));
+                *ns_p = PLIP_NB_1;
+
+        case PLIP_NB_1:
+                z_writeb(0x10 | (data & 0x0f), PAR_DATA(dev));
+                cx = nibble_timeout;
+                while (1) {
+                        c0 = z_readb(PAR_STATUS(dev));
+                        if ((c0 & 0x80) == 0) 
+                                break;
+                        if (--cx == 0)
+                                return TIMEOUT;
+                        udelay(PLIP_DELAY_UNIT);
+                }
+                z_writeb(0x10 | (data >> 4), PAR_DATA(dev));
+                *ns_p = PLIP_NB_2;
+
+        case PLIP_NB_2:
+                z_writeb((data >> 4), PAR_DATA(dev));
+                cx = nibble_timeout;
+                while (1) {
+                        c0 = z_readb(PAR_STATUS(dev));
+                        if (c0 & 0x80)
+                                break;
+                        if (--cx == 0)
+                                return TIMEOUT;
+                        udelay(PLIP_DELAY_UNIT);
+                }
+                *ns_p = PLIP_NB_BEGIN;
+                return OK;
+        }
+        return OK;
+}
+
+/* PLIP_SEND_PACKET --- send a packet */
+static int
+plip_send_packet(struct device *dev, struct net_local *nl,
+                 struct plip_local *snd, struct plip_local *rcv)
+{
+        unsigned short nibble_timeout = nl->nibble;
+        unsigned char *lbuf;
+        unsigned char c0;
+        unsigned int cx;
+        unsigned long flags;
+
+        if (snd->skb == NULL || (lbuf = snd->skb->data) == NULL) {
+                printk(KERN_INFO "%s: send skb lost\n", dev->name);
+                snd->state = PLIP_PK_DONE;
+                snd->skb = NULL;
+                return ERROR;
+        }
+
+        if (snd->length.h == 0) {
+                return OK;
+        }
+
+        switch (snd->state) {
+        case PLIP_PK_TRIGGER:
+                if ((z_readb(PAR_STATUS(dev)) & 0xf8) != 0x80)
+                        return TIMEOUT;
+
+                /* Trigger remote rx interrupt. */
+                z_writeb(0x08, PAR_DATA(dev));
+                cx = nl->trigger;
+                while (1) {
+                        udelay(PLIP_DELAY_UNIT);
+                        save_flags(flags);
+                        cli();
+                        if (nl->connection == PLIP_CN_RECEIVE) {
+                                restore_flags(flags);
+                                /* interrupted */
+                                nl->enet_stats.collisions++;
+                                if (net_debug > 1)
+                                        printk(KERN_INFO "%s: collision.\n",
+                                               dev->name);
+                                return OK;
+                        }
+                        c0 = z_readb(PAR_STATUS(dev));
+                        if (c0 & 0x08) {
+                                enable_par_irq(dev, 0);
+                                if (net_debug > 2)
+                                        printk(KERN_DEBUG "%s: send start\n",
+                                               dev->name);
+                                snd->state = PLIP_PK_LENGTH_LSB;
+                                snd->nibble = PLIP_NB_BEGIN;
+                                nl->timeout_count = 0;
+                                restore_flags(flags);
+                                break;
+                        }
+                        restore_flags(flags);
+                        if (--cx == 0) {
+                                z_writeb(0x00, PAR_DATA(dev));
+                                return TIMEOUT;
+                        }
+                }
+
+        case PLIP_PK_LENGTH_LSB:
+                if (plip_send(dev, nibble_timeout, 
+                              &snd->nibble, snd->length.b.lsb))
+                        return TIMEOUT;
+                snd->state = PLIP_PK_LENGTH_MSB;
+
+        case PLIP_PK_LENGTH_MSB:
+                if (plip_send(dev, nibble_timeout, 
+                              &snd->nibble, snd->length.b.msb))
+                        return TIMEOUT;
+                snd->state = PLIP_PK_DATA;
+                snd->byte = 0;
+                snd->checksum = 0;
+
+        case PLIP_PK_DATA:
+                do
+                        if (plip_send(dev, nibble_timeout, 
+                                      &snd->nibble, lbuf[snd->byte]))
+                                return TIMEOUT;
+                while (++snd->byte < snd->length.h);
+                do
+                        snd->checksum += lbuf[--snd->byte];
+                while (snd->byte);
+                snd->state = PLIP_PK_CHECKSUM;
+
+        case PLIP_PK_CHECKSUM:
+                if (plip_send(dev, nibble_timeout, 
+                              &snd->nibble, snd->checksum))
+                        return TIMEOUT;
+
+                dev_kfree_skb(snd->skb);
+                nl->enet_stats.tx_packets++;
+                snd->state = PLIP_PK_DONE;
+
+        case PLIP_PK_DONE:
+                /* Close the connection */
+                z_writeb (0x00, PAR_DATA(dev));
+                snd->skb = NULL;
+                if (net_debug > 2)
+                        printk(KERN_DEBUG "%s: send end\n", dev->name);
+                nl->connection = PLIP_CN_CLOSING;
+                nl->is_deferred = 1;
+                queue_task(&nl->deferred, &tq_timer);
+                enable_par_irq(dev, 1);
+                return OK;
+        }
+        return OK;
+}
+
+static int
+plip_connection_close(struct device *dev, struct net_local *nl,
+                      struct plip_local *snd, struct plip_local *rcv)
+{
+        unsigned long flags;
+
+        save_flags(flags);
+        cli();
+        if (nl->connection == PLIP_CN_CLOSING) {
+                nl->connection = PLIP_CN_NONE;
+                dev->tbusy = 0;
+                mark_bh(NET_BH);
+        }
+        restore_flags(flags);
+        return OK;
+}
+
+/* PLIP_ERROR --- wait till other end settled */
+static int
+plip_error(struct device *dev, struct net_local *nl,
+           struct plip_local *snd, struct plip_local *rcv)
+{
+        unsigned char status;
+
+        status = z_readb(PAR_STATUS(dev));
+        if ((status & 0xf8) == 0x80) {
+                if (net_debug > 2)
+                        printk(KERN_DEBUG "%s: reset interface.\n", dev->name);
+                nl->connection = PLIP_CN_NONE;
+                dev->tbusy = 0;
+                dev->interrupt = 0;
+                enable_par_irq(dev, 1);
+                mark_bh(NET_BH);
+        } else {
+                nl->is_deferred = 1;
+                queue_task(&nl->deferred, &tq_timer);
+        }
+
+        return OK;
+}
+
+/* We don't need to send arp, for plip is point-to-point. */
+static int
+plip_rebuild_header(struct sk_buff *skb)
+{
+        struct device *dev = skb->dev;
+        struct net_local *nl = (struct net_local *)dev->priv;
+        struct ethhdr *eth = (struct ethhdr *)skb->data;
+        int i;
+
+        if ((dev->flags & IFF_NOARP)==0)
+                return nl->orig_rebuild_header(skb);
+
+        if (eth->h_proto != __constant_htons(ETH_P_IP)
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+            && eth->h_proto != __constant_htons(ETH_P_IPV6)
+#endif
+                ) {
+                printk(KERN_ERR "plip_rebuild_header: Don't know how to resolve type %d addresses?\n", (int)eth->h_proto);
+                memcpy(eth->h_source, dev->dev_addr, dev->addr_len);
+                return 0;
+        }
+
+        for (i=0; i < ETH_ALEN - sizeof(u32); i++)
+                eth->h_dest[i] = 0xfc;
+#if 0
+        *(u32 *)(eth->h_dest+i) = dst;
+#else
+        /* Do not want to include net/route.h here.
+         * In any case, it is TOP of silliness to emulate
+         * hardware addresses on PtP link. --ANK
+         */
+        *(u32 *)(eth->h_dest+i) = 0;
+#endif
+        return 0;
+}
+
+static int
+plip_tx_packet(struct sk_buff *skb, struct device *dev)
+{
+        struct net_local *nl = (struct net_local *)dev->priv;
+        struct plip_local *snd = &nl->snd_data;
+        unsigned long flags;
+
+        if (dev->tbusy)
+                return 1;
+
+        if (test_and_set_bit(0, (void*)&dev->tbusy) != 0) {
+                printk(KERN_ERR "%s: Transmitter access conflict.\n",
+                       dev->name);
+                return 1;
+        }
+
+        if (skb->len > dev->mtu + dev->hard_header_len) {
+                printk(KERN_ERR "%s: packet too big, %d.\n",
+                       dev->name, (int)skb->len);
+                dev->tbusy = 0;
+                return 0;
+        }
+
+        if (net_debug > 2)
+                printk(KERN_DEBUG "%s: send request\n", dev->name);
+
+        save_flags(flags);
+        cli();
+        dev->trans_start = jiffies;
+        snd->skb = skb;
+        snd->length.h = skb->len;
+        snd->state = PLIP_PK_TRIGGER;
+        if (nl->connection == PLIP_CN_NONE) {
+                nl->connection = PLIP_CN_SEND;
+                nl->timeout_count = 0;
+        }
+        queue_task(&nl->immediate, &tq_immediate);
+        mark_bh(IMMEDIATE_BH);
+        restore_flags(flags);
+
+        return 0;
+}
+
+/* Open/initialize the board.  This is called (in the current kernel)
+   sometime after booting when the 'ifconfig' program is run.
+
+ */
+static int
+plip_open(struct device *dev)
+{
+        struct net_local *nl = (struct net_local *)dev->priv;
+        struct in_device *in_dev;
+
+#if defined(CONFIG_GVPIOEXT_LP) || defined(CONFIG_GVPIOEXT_LP_MODULE)
+        /* Yes, there is a race condition here. Fix it later */
+        if (PLIP_DEV(dev)->par_use & IOEXT_PAR_LP) {
+                /* Can't open if lp is in use */
+#if DEBUG
+                printk("par is in use by lp\n");
+#endif
+                return(-EBUSY);
+        }
+#endif
+        PLIP_DEV(dev)->par_use |= IOEXT_PAR_PLIP;
+
+#if DEBUG
+        printk("plip_open(): sending 00 to data port\n");
+#endif
+
+        /* Clear the data port. */
+        z_writeb (0x00, PAR_DATA(dev));
+
+#if DEBUG
+        printk("plip_open(): sent\n");
+#endif
+
+        /* Initialize the state machine. */
+        nl->rcv_data.state = nl->snd_data.state = PLIP_PK_DONE;
+        nl->rcv_data.skb = nl->snd_data.skb = NULL;
+        nl->connection = PLIP_CN_NONE;
+        nl->is_deferred = 0;
+
+        /* Fill in the MAC-level header.
+           (ab)Use "dev->broadcast" to store point-to-point MAC address.
+
+           PLIP doesn't have a real mac address, but we need to create one
+           to be DOS compatible.  */
+        memset(dev->dev_addr,  0xfc, ETH_ALEN);
+        memset(dev->broadcast, 0xfc, ETH_ALEN);
+
+        if ((in_dev=dev->ip_ptr) != NULL) {
+                /*
+                 *      Any address will do - we take the first
+                 */
+                struct in_ifaddr *ifa=in_dev->ifa_list;
+                if (ifa != NULL) {
+                        memcpy(dev->dev_addr+2, &ifa->ifa_local, 4);
+                        memcpy(dev->broadcast+2, &ifa->ifa_address, 4);
+                }
+        }
+
+        dev->interrupt = 0;
+        dev->start = 1;
+        dev->tbusy = 0;
+
+        MOD_INC_USE_COUNT;
+
+        /* Enable rx interrupt. */
+        enable_par_irq(dev, 1);
+
+        return 0;
+}
+
+/* The inverse routine to plip_open (). */
+static int
+plip_close(struct device *dev)
+{
+        struct net_local *nl = (struct net_local *)dev->priv;
+        struct plip_local *snd = &nl->snd_data;
+        struct plip_local *rcv = &nl->rcv_data;
+        unsigned long flags;
+
+        dev->tbusy = 1;
+        dev->start = 0;
+        save_flags(flags);
+        cli();
+        nl->is_deferred = 0;
+        nl->connection = PLIP_CN_NONE;
+        restore_flags(flags);
+        z_writeb(0x00, PAR_DATA(dev));
+
+        snd->state = PLIP_PK_DONE;
+        if (snd->skb) {
+                dev_kfree_skb(snd->skb);
+                snd->skb = NULL;
+        }
+        rcv->state = PLIP_PK_DONE;
+        if (rcv->skb) {
+                kfree_skb(rcv->skb);
+                rcv->skb = NULL;
+        }
+
+        PLIP_DEV(dev)->par_use &= ~IOEXT_PAR_PLIP;
+
+        MOD_DEC_USE_COUNT;
+        return 0;
+}
+
+static struct enet_statistics *
+plip_get_stats(struct device *dev)
+{
+        struct net_local *nl = (struct net_local *)dev->priv;
+        struct enet_statistics *r = &nl->enet_stats;
+
+        return r;
+}
+
+static int
+plip_config(struct device *dev, struct ifmap *map)
+{
+        if (dev->flags & IFF_UP)
+                return -EBUSY;
+
+        printk(KERN_INFO "%s: This interface is autodetected (ignored).\n",
+               dev->name);
+
+        return 0;
+}
+
+static int
+plip_ioctl(struct device *dev, struct ifreq *rq, int cmd)
+{
+        struct net_local *nl = (struct net_local *) dev->priv;
+        struct plipconf *pc = (struct plipconf *) &rq->ifr_data;
+  
+        switch(pc->pcmd) {
+        case PLIP_GET_TIMEOUT:
+                pc->trigger = nl->trigger;
+                pc->nibble  = nl->nibble;
+                break;
+        case PLIP_SET_TIMEOUT:
+                nl->trigger = pc->trigger;
+                nl->nibble  = pc->nibble;
+                break;
+        default:
+                return -EOPNOTSUPP;
+        }
+        return 0;
+}
+
+/*
+ * Detect and initialize all IO-Extenders in this system.
+ *
+ * Both PLIP and serial devices are configured.
+ */
+int plip_init(struct device *dev)
+{
+        IOEXT_struct *board;
+        struct net_local *nl;
+
+        if (ioext_num == 0) {
+                printk(KERN_INFO "%s\n", version);
+        }
+
+        board = PLIP_DEV(dev)->board;
+        dev->base_addr = (unsigned long)&board->par.DATA;
+
+        /* Cheat and use irq to index into our table */
+        dev->irq = ioext_num;
+
+        printk(KERN_INFO "%s: IO-Extender parallel port at 0x%08lX\n", dev->name, dev->base_addr);
+
+        /* Fill in the generic fields of the device structure. */
+        ether_setup(dev);
+
+        /* Then, override parts of it */
+        dev->hard_start_xmit  = plip_tx_packet;
+        dev->open    = plip_open;
+        dev->stop    = plip_close;
+        dev->get_stats     = plip_get_stats;
+        dev->set_config    = plip_config;
+        dev->do_ioctl    = plip_ioctl;
+        dev->tx_queue_len  = 10;
+        dev->flags          = IFF_POINTOPOINT|IFF_NOARP;
+
+        /* Set the private structure */
+        dev->priv = kmalloc(sizeof (struct net_local), GFP_KERNEL);
+        if (dev->priv == NULL) {
+                printk(KERN_ERR "%s: out of memory\n", dev->name);
+                return -ENOMEM;
+        }
+        memset(dev->priv, 0, sizeof(struct net_local));
+        nl = (struct net_local *) dev->priv;
+
+        nl->orig_rebuild_header = dev->rebuild_header;
+        dev->rebuild_header   = plip_rebuild_header;
+
+        /* Initialize constants */
+        nl->trigger  = PLIP_TRIGGER_WAIT;
+        nl->nibble  = PLIP_NIBBLE_WAIT;
+
+        /* Initialize task queue structures */
+        nl->immediate.next = NULL;
+        nl->immediate.sync = 0;
+        nl->immediate.routine = (void *)(void *)plip_bh;
+        nl->immediate.data = dev;
+
+        nl->deferred.next = NULL;
+        nl->deferred.sync = 0;
+        nl->deferred.routine = (void *)(void *)plip_kick_bh;
+        nl->deferred.data = dev;
+
+        /* Don't enable interrupts yet */
+
+        return 0;

drivers/char/scc2692.c

@@ +1 @@
+#include <linux/module.h>
+#include <linux/config.h>
+#include <linux/kdev_t.h>
+#include <asm/io.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/mm.h>
+#include <linux/serial.h>
+#include <linux/fcntl.h>
+#include <linux/major.h>
+#include <linux/delay.h>
+#include <linux/tqueue.h>
+#include <linux/version.h>
+#include <linux/slab.h>
+#include <linux/miscdevice.h>
+#include <linux/console.h>
+#include <linux/init.h>
+#include <asm/setup.h>
+#include <asm/bootinfo.h>
+
+#include <asm/tekuart.h>
+#include <asm/tekirq.h>
+
+#include <linux/generic_serial.h>
+
+#define NR_PORTS 2
+
+static struct scc_port
+{
+        struct gs_port  gs;
+        unsigned long   base;
+        int             irq_rx, irq_tx;
+        unsigned char   channel;
+        unsigned long   scale;
+} scc_ports[NR_PORTS];
+
+#define STATUS(scc)     ((scc)->base + (((scc)->channel * 8 + 1) * (scc)->scale))
+#define CSR(scc)        STATUS(scc)
+
+#define RECEIVE(scc)    ((scc)->base + (((scc)->channel * 8 + 3) * (scc)->scale))
+#define TRANSMIT(scc)   RECEIVE(scc)
+
+#define COMMAND(scc)    ((scc)->base + (((scc)->channel * 8 + 2) * (scc)->scale))
+
+#define MR(scc)         ((scc)->base + (((scc)->channel * 8 + 0) * (scc)->scale))
+
+
+static struct tty_driver scc_driver, scc_callout_driver;
+static struct tty_struct *scc_table[NR_PORTS] = { NULL, NULL };
+static struct termios *scc_termios[NR_PORTS];
+static struct termios *scc_termios_locked[NR_PORTS];
+
+int scc_refcount;
+
+#define SCC_MINOR_BASE        64
+#define SCC_MAGIC 0x52696368
+
+static inline void scc_disable_tx_interrupts(void *ptr)
+{
+        struct scc_port *port = ptr;
+        disable_irq(port->irq_tx);
+        port->gs.flags &= ~GS_TX_INTEN;
+}
+
+static inline void scc_enable_tx_interrupts(void *ptr)
+{
+        struct scc_port *port = ptr;
+        enable_irq(port->irq_tx);
+}
+
+static inline void scc_disable_rx_interrupts(void *ptr)
+{
+        struct scc_port *port = ptr;
+        disable_irq(port->irq_rx);
+}
+
+static inline void scc_enable_rx_interrupts(void *ptr)
+{
+        struct scc_port *port = ptr;
+        enable_irq(port->irq_rx);
+}
+
+
+/*
+ * Receiver Interrupt
+ */
+static void scc_rx_int(int irq, void *data, struct pt_regs *fp)
+{
+        struct scc_port *port = data;
+        struct tty_struct *tty = port->gs.tty;
+        unsigned long flags;
+        volatile unsigned char ch;
+
+        spin_lock_irqsave(tek_uart_lock, flags);
+        while ( *(volatile unsigned char *)STATUS(port) & 0x1 )
+        {
+                ch = *(volatile unsigned char *)RECEIVE(port);
+
+                if (!tty)
+                        /*
+                         * FIXME: It might be a bad idea to call printk
+                         *        with the lock held.
+                         */
+                        printk(KERN_WARNING "scc_rx_int with NULL tty!\n");
+                else if (tty->flip.count < TTY_FLIPBUF_SIZE) {
+                        *tty->flip.char_buf_ptr = ch;
+                        *tty->flip.flag_buf_ptr = 0;
+                        tty->flip.flag_buf_ptr++;
+                        tty->flip.char_buf_ptr++;
+                        tty->flip.count++;
+                }
+        }
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+
+        tty_flip_buffer_push(tty);
+}
+
+/*
+ * Transmitter interrupt
+ */
+static void scc_tx_int(int irq, void *data, struct pt_regs *fp)
+{
+        struct scc_port *port = data;
+        struct tty_struct *tty = port->gs.tty;
+        unsigned long flags;
+
+        if ( !tty )
+        {
+                scc_disable_tx_interrupts(port);
+                return;
+        }
+        
+        spin_lock_irqsave(tek_uart_lock, flags);
+        while ( *(volatile unsigned char *)STATUS(port) & 0x4 )
+        {
+                *(volatile unsigned char *)TRANSMIT(port) =
+                        port->gs.xmit_buf[port->gs.xmit_tail++];
+                port->gs.xmit_tail = port->gs.xmit_tail & (SERIAL_XMIT_SIZE-1);
+                if (--port->gs.xmit_cnt <= 0)
+                        break;
+        }
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+
+        if ((port->gs.xmit_cnt <= 0) || (tty && (tty->stopped || tty->hw_stopped)) )
+        {
+                scc_disable_tx_interrupts(port);
+        }
+
+        if (tty && port->gs.xmit_cnt <= port->gs.wakeup_chars) {
+                if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) && tty->ldisc.write_wakeup)
+                        (tty->ldisc.write_wakeup)(port->gs.tty);
+                wake_up_interruptible(&tty->write_wait);
+        }
+}
+
+/*---------------------------------------------------------------------------
+ * generic_serial.c callback funtions
+ *--------------------------------------------------------------------------*/
+
+static int scc_get_CD(void *ptr)
+{
+        return 1;
+}
+
+static void scc_shutdown_port(void *ptr)
+{
+        struct scc_port *port = ptr;
+
+        port->gs.flags &= ~ GS_ACTIVE;
+}
+
+static const int baudrates[B38400] = {
+        [B19200]        13,
+        [B9600]         12,
+        [B4800]         10,
+        [B2400]         9,
+        [B1200]         7,
+        [B600]          6,
+        [B300]          5,
+        [B134]          3,
+        [B110]          2,
+        [B75]           1
+};
+
+static int scc_set_real_termios(void *ptr)
+{
+        struct scc_port *port = ptr;
+        unsigned long flags;
+        unsigned int cflag;
+        unsigned char baudrate = 0;
+        unsigned char mr1 = 0x80, mr2 = 0;
+        int baud;
+
+        if (!port->gs.tty || !port->gs.tty->termios)
+                return 0;
+
+        cflag = port->gs.tty->termios->c_cflag;
+        baud = cflag & (CBAUD | CBAUDEX);
+
+        if (baud == B0)
+        {
+                // TODO: hangup
+                return 0;
+        }
+
+        if ((baud >= sizeof baudrates/sizeof baudrates[0]) || !baudrates[baud])
+                return -EINVAL;
+        baudrate = baudrates[baud] - 1;
+
+        if ( cflag & CSTOPB )
+                mr2 |= 0x7;     /* 1 stop bit */
+
+        if ( !(cflag & PARENB) )
+                mr1 |= 0x10;    /* no parity */
+        else if ( cflag & PARODD )
+                mr1 |= 0x04;
+
+        switch (cflag & CSIZE)
+        {
+        case CS5:
+                break;
+        case CS6:
+                mr1 |= 0x01;
+                break;
+        case CS7:
+                mr1 |= 0x02;
+                break;
+        case CS8:
+                mr1 |= 0x03;
+                break;
+        default:
+                return -EINVAL;
+        }
+        
+/*
+        printk("scc2692: real_termios line=%d baudrate=%02x mr1=%02x mr2=%02x\n", port->channel, baudrate, mr1, mr2);
+*/
+
+        spin_lock_irqsave(tek_uart_lock, flags);
+
+        // Set baudrate into register CSRA
+        *(volatile unsigned char *)CSR(port) = (baudrate << 4) | (baudrate & 0xf);
+        // Reset MR pointer
+        *(volatile unsigned char *)COMMAND(port) = 1 << 4;
+        // Set MR1
+        *(volatile unsigned char *)MR(port) = mr1;
+        // Set MR2
+        *(volatile unsigned char *)MR(port) = mr2;
+
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+
+        return 0;
+}
+
+static int scc_chars_in_buffer(void *ptr)
+{
+        struct scc_port *port = ptr;
+        int res;
+        unsigned long flags;
+
+        spin_lock_irqsave(tek_uart_lock, flags);
+        res = !(*(volatile unsigned char *)STATUS(port) & 4);
+        spin_unlock_irqrestore(tek_uart_lock, flags);
+
+        return res;
+}
+
+static void scc_hungup(void *ptr)
+{
+        scc_disable_tx_interrupts(ptr);
+        scc_disable_rx_interrupts(ptr);
+        MOD_DEC_USE_COUNT;
+}
+
+static void scc_close(void *ptr)
+{
+        scc_disable_tx_interrupts(ptr);
+        scc_disable_rx_interrupts(ptr);
+        MOD_DEC_USE_COUNT;
+}
+
+/*---------------------------------------------------------------------------
+ * Driver entrypoints referenced from above
+ *--------------------------------------------------------------------------*/
+
+static int scc_open (struct tty_struct * tty, struct file * filp)
+{
+        int line = MINOR(tty->device) - SCC_MINOR_BASE;
+        int retval;
+        struct scc_port *port = &scc_ports[line];
+
+        if ( line >= 2 )
+                return -ENXIO;
+
+        tty->driver_data = port;
+        port->gs.tty = tty;
+        port->gs.count++;
+        retval = gs_init_port(&port->gs);
+        if (retval) {
+                port->gs.count--;
+                return retval;
+        }
+        port->gs.flags |= GS_ACTIVE;
+        if (port->gs.count == 1) {
+                MOD_INC_USE_COUNT;
+        }
+        retval = gs_block_til_ready(port, filp);
+
+        if (retval) {
+                MOD_DEC_USE_COUNT;
+                port->gs.count--;
+                return retval;
+        }
+
+        if ((port->gs.count == 1) && (port->gs.flags & ASYNC_SPLIT_TERMIOS)) {
+                if (tty->driver.subtype == SERIAL_TYPE_NORMAL)
+                        *tty->termios = port->gs.normal_termios;
+                else
+                        *tty->termios = port->gs.callout_termios;
+                scc_set_real_termios (port);
+//              scc_disable_tx_interrupts(ptr);
+        }
+
+        port->gs.session = current->session;
+        port->gs.pgrp = current->pgrp;
+
+        scc_enable_rx_interrupts(port);
+
+        return 0;
+}
+
+static void scc_throttle (struct tty_struct * tty)
+{
+/*
+        struct scc_port *port = (struct scc_port *)tty->driver_data;
+        unsigned long   flags;
+        SCC_ACCESS_INIT(port);
+
+        if (tty->termios->c_cflag & CRTSCTS) {
+                save_flags(flags);
+                cli();
+                SCCmod(TX_CTRL_REG, ~TCR_RTS, 0);
+                restore_flags(flags);
+        }
+        if (I_IXOFF(tty))
+                scc_send_xchar(tty, STOP_CHAR(tty));
+*/
+}
+
+static void scc_unthrottle (struct tty_struct * tty)
+{
+}
+
+static int scc_ioctl(struct tty_struct *tty, struct file *file,
+                     unsigned int cmd, unsigned long arg)
+{
+        return -ENOIOCTLCMD;
+}
+
+static void scc_break_ctl(struct tty_struct *tty, int break_state)
+{
+}
+
+/*---------------------------------------------------------------------------
+ * Interface from generic_serial.c back here
+ *--------------------------------------------------------------------------*/
+
+static struct real_driver scc_real_driver = {
+        scc_disable_tx_interrupts,
+        scc_enable_tx_interrupts,
+        scc_disable_rx_interrupts,
+        scc_enable_rx_interrupts,
+        scc_get_CD,
+        scc_shutdown_port,
+        scc_set_real_termios,
+        scc_chars_in_buffer,
+        scc_close,
+        scc_hungup,
+        NULL
+};
+
+
+int __devinit scc_register_chip(struct scc_port *port)
+{
+        port->gs.callout_termios = tty_std_termios;
+        port->gs.normal_termios = tty_std_termios;
+        port->gs.magic = SCC_MAGIC;
+        port->gs.close_delay = HZ/2;
+        port->gs.closing_wait = 30 * HZ;
+        port->gs.rd = &scc_real_driver;
+#ifdef NEW_WRITE_LOCKING
+        port->gs.port_write_sem = MUTEX;
+#endif
+
+        init_waitqueue_head(&port->gs.open_wait);
+        init_waitqueue_head(&port->gs.close_wait);
+
+        return 0;
+}
+
+static int __devinit scc_chip_init(unsigned long base, int irq_rxa, int irq_txa,
+                         int irq_rxb, int irq_txb)
+{
+        int err = 0;
+        unsigned long flags;
+
+        scc_ports[0].base   = base;
+        scc_ports[0].scale  = 4;
+        scc_ports[0].irq_rx = irq_rxa;
+        scc_ports[0].irq_tx = irq_txa;
+        scc_ports[0].channel = 0;
+
+        scc_ports[1].base   = base;
+        scc_ports[1].scale  = 4;
+        scc_ports[1].irq_rx = irq_rxb;
+        scc_ports[1].irq_tx = irq_txb;
+        scc_ports[1].channel = 1;
+
+        save_flags(flags);
+        cli();
+
+        err = request_irq(irq_rxa, scc_rx_int, SA_INTERRUPT, "SCC-A RX", &scc_ports[0]);
+        if ( err < 0 )
+                return err;
+
+        err = request_irq(irq_txa, scc_tx_int, SA_INTERRUPT, "SCC-A TX", &scc_ports[0]);
+        if ( err < 0 )
+        {
+                free_irq(irq_rxa, &scc_ports[0]);
+                return err;
+        }
+
+        err = request_irq(irq_rxb, scc_rx_int, SA_INTERRUPT, "SCC-B RX", &scc_ports[1]);
+        if ( err < 0 )
+        {
+                free_irq(irq_rxa, &scc_ports[0]);
+                free_irq(irq_txa, &scc_ports[0]);
+                return err;
+        }
+
+        err = request_irq(irq_txb, scc_tx_int, SA_INTERRUPT, "SCC-B TX", &scc_ports[1]);
+        if ( err < 0 )
+        {
+                free_irq(irq_rxa, &scc_ports[0]);
+                free_irq(irq_txa, &scc_ports[0]);
+                free_irq(irq_rxb, &scc_ports[1]);
+                return err;
+        }
+
+        disable_irq(irq_rxa);
+        disable_irq(irq_txa);
+        disable_irq(irq_rxb);
+        disable_irq(irq_txb);
+
+        restore_flags(flags);
+
+        scc_register_chip(&scc_ports[0]);
+        scc_register_chip(&scc_ports[1]);
+
+        return 0;
+}
+
+int __devinit tekscc_init(void)
+{
+        int err = -ENXIO;
+
+#ifdef CONFIG_TEKXP
+        err = scc_chip_init(TEK_UART_BASE, TEK_IRQ_RXRDY_A, TEK_IRQ_TXRDY_A,
+                            TEK_IRQ_RXRDY_B, TEK_IRQ_TXRDY_B);
+#endif
+        if ( err < 0 )
+                return err;
+
+        memset(&scc_driver, 0, sizeof(scc_driver));
+        scc_driver.magic = TTY_DRIVER_MAGIC;
+        scc_driver.driver_name = "scc2692";
+#ifdef CONFIG_DEVFS_FS
+        scc_driver.name = "tts/%d";
+#else
+        scc_driver.name = "ttyS";
+#endif
+        scc_driver.major = TTY_MAJOR;
+        scc_driver.minor_start = SCC_MINOR_BASE;
+        scc_driver.num = 2;
+        scc_driver.type = TTY_DRIVER_TYPE_SERIAL;
+        scc_driver.subtype = SERIAL_TYPE_NORMAL;
+        scc_driver.init_termios = tty_std_termios;
+        scc_driver.init_termios.c_cflag = B9600 | PARENB | CSTOPB | CS7 | CREAD | HUPCL | CLOCAL;
+        scc_driver.flags = TTY_DRIVER_REAL_RAW;
+        scc_driver.refcount = &scc_refcount;
+        scc_driver.table = scc_table;
+        scc_driver.termios = scc_termios;
+        scc_driver.termios_locked = scc_termios_locked;
+        scc_driver.open = scc_open;
+        scc_driver.close = gs_close;
+        scc_driver.write = gs_write;
+        scc_driver.put_char = gs_put_char;
+        scc_driver.flush_chars = gs_flush_chars;
+        scc_driver.write_room = gs_write_room;
+        scc_driver.chars_in_buffer = gs_chars_in_buffer;
+        scc_driver.flush_buffer = gs_flush_buffer;
+        scc_driver.ioctl = scc_ioctl;
+        scc_driver.throttle = scc_throttle;
+        scc_driver.unthrottle = scc_unthrottle;
+        scc_driver.set_termios = gs_set_termios;
+        scc_driver.stop = gs_stop;
+        scc_driver.start = gs_start;
+        scc_driver.hangup = gs_hangup;
+        scc_driver.break_ctl = scc_break_ctl;
+
+        scc_callout_driver = scc_driver;
+#ifdef CONFIG_DEVFS_FS
+        scc_callout_driver.driver_name = "cua/%d";
+#else
+        scc_callout_driver.driver_name = "cua";
+#endif
+        scc_callout_driver.major = TTYAUX_MAJOR;
+        scc_callout_driver.subtype = SERIAL_TYPE_CALLOUT;
+
+        if ((err = tty_register_driver(&scc_driver))) {
+                printk(KERN_ERR "scc2692: Couldn't register scc driver, error = %d\n", err);
+                return -EBUSY;
+        }
+        if ((err = tty_register_driver(&scc_callout_driver))) {
+                printk(KERN_ERR "scc2692: Couldn't register scc callout driver, error = %d\n", err);
+                return -EBUSY;
+        }
+
+        return 0;
+}
+
+static void __devexit tekscc_exit(void)
+{
+        struct scc_port *port = &scc_ports[0];
+        scc_disable_tx_interrupts(port);
+        scc_disable_rx_interrupts(port);
+        free_irq(port->irq_rx, port);
+        free_irq(port->irq_tx, port);
+
+        port = &scc_ports[1];
+        scc_disable_tx_interrupts(port);
+        scc_disable_rx_interrupts(port);
+        free_irq(port->irq_rx, port);
+        free_irq(port->irq_tx, port);
+
+        if ( tty_unregister_driver(&scc_driver) )
+                printk(KERN_ERR "Could not unregister SCC2692 serial driver\n");
+        if ( tty_unregister_driver(&scc_callout_driver) )
+                printk(KERN_ERR "Could not unregister SCC2692 callout driver\n");
+}
+
+module_init(tekscc_init);
+module_exit(tekscc_exit);
+MODULE_LICENSE("GPL");
+
+#ifdef CONFIG_SERIAL_CONSOLE
+
+/*---------------------------------------------------------------------------
+ * Serial console stuff...
+ *--------------------------------------------------------------------------*/
+
+#define scc_delay() do { __asm__ __volatile__ (" nop; nop"); } while (0)
+
+static void scc_ch_write (char ch)
+{
+        tek_uart_putchar(0, ch, 1);
+}
+
+static void scc_console_write (struct console *co, const char *str, unsigned count)
+{
+        unsigned long   flags;
+
+        save_flags(flags);
+        cli();
+
+        while (count--)
+        {
+                if (*str == '\n')
+                        scc_ch_write ('\r');
+                scc_ch_write (*str++);
+        }
+        restore_flags(flags);
+}
+
+static kdev_t scc_console_device(struct console *c)
+{
+        return MKDEV(TTY_MAJOR, SCC_MINOR_BASE + c->index);
+}
+
+
+static int __devinit scc_console_setup(struct console *co, char *options)
+{
+        return 0;
+}
+
+static struct console sercons = {
+        name:           "ttyS",
+        write:          scc_console_write,
+        device:         scc_console_device,
+        setup:          scc_console_setup,
+        flags:          CON_PRINTBUFFER,
+        index:          -1,
+};
+
+
+void __init tekscc_console_init(void)
+{
+                register_console(&sercons);
+}
+
+#endif
+

drivers/char/tty_io.c

@@ -138 +138 @@
               unsigned int cmd, unsigned long arg);
 static int tty_fasync(int fd, struct file * filp, int on);
 extern int vme_scc_init (void);
+extern int tekscc_init (void);
 extern long vme_scc_console_init(void);
+extern long tekscc_console_init(void);
 extern int serial167_init(void);
 extern long serial167_console_init(void);
 extern void console_8xx_init(void);
@@ -2269 +2271 @@
 #if defined(CONFIG_SERIAL167)
         serial167_console_init();
 #endif
+#if defined(CONFIG_SCC2692)
+        tekscc_console_init();
+#endif
 #if defined(CONFIG_SH_SCI)
         sci_console_init();
 #endif
@@ -2408 +2413 @@
 #if defined(CONFIG_MVME162_SCC) || defined(CONFIG_BVME6000_SCC) || defined(CONFIG_MVME147_SCC)
         vme_scc_init();
 #endif
+#ifdef CONFIG_SCC2692
+        tekscc_init();
+#endif
 #ifdef CONFIG_SERIAL_TX3912
         tx3912_rs_init();
 #endif

drivers/ide/ide-probe.c

@@ -350 +350 @@
                 rc = 0;
                 /* clear drive IRQ */
                 (void) hwif->INB(IDE_STATUS_REG);
+                (void) ide_ack_intr(hwif);
                 local_irq_restore(flags);
         } else {
                 /* drive refused ID */
@@ -503 +504 @@
                                 drive->name, hwif->INB(IDE_STATUS_REG));
                 /* ensure drive irq is clear */
                 (void) hwif->INB(IDE_STATUS_REG);
+                (void) ide_ack_intr(hwif);
         } else {
                 /* not present or maybe ATAPI */
                 rc = 3;
@@ -513 +515 @@
                 ide_delay_50ms();
                 /* ensure drive irq is clear */
                 (void) hwif->INB(IDE_STATUS_REG);
+                (void) ide_ack_intr(hwif);
         }
         return rc;
 }

drivers/macintosh/adb.c

@@ -35 +35 @@
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/completion.h>
+
 #include <asm/uaccess.h>
 #ifdef CONFIG_PPC
 #include <asm/prom.h>
@@ -380 +381 @@
         
         if (adb_controller == NULL)
                 return -ENXIO;
-                
+        
         if (adb_controller->autopoll)
                 adb_controller->autopoll(0);
 
         nret = notifier_call_chain(&adb_client_list, ADB_MSG_PRE_RESET, NULL);
         if (nret & NOTIFY_STOP_MASK) {
                 if (adb_controller->autopoll)
-                        adb_controller->autopoll(devs);
+                        adb_controller->autopoll(0);
                 return -EBUSY;
         }
 
@@ -467 +468 @@
                 use_sreq = 1;
         } else
                 use_sreq = 0;
-        req->nbytes = nbytes+1;
+        i = (flags & ADBREQ_RAW) ? 0 : 1;
+        req->nbytes = nbytes+i;
         req->done = done;
         req->reply_expected = flags & ADBREQ_REPLY;
         req->data[0] = ADB_PACKET;
         va_start(list, nbytes);
-        for (i = 0; i < nbytes; ++i)
-                req->data[i+1] = va_arg(list, int);
+        while (i < req->nbytes) {
+                req->data[i++] = va_arg(list, int);
+        }
         va_end(list);
 
         if (flags & ADBREQ_NOSEND)

drivers/mtd/maps/Config.in

@@ -96 +96 @@
    dep_tristate '  Generic uClinux RAM/ROM filesystem support' CONFIG_MTD_UCLINUX $CONFIG_MTD_PARTITIONS
 fi
 
+if [ "$CONFIG_TEKXP" = "y" ]; then
+   dep_tristate '  TekXpress optional ROM support' CONFIG_MTD_TEKXP_OPTROM $CONFIG_MTD_ROM
+fi
+
 # This needs CFI or JEDEC, depending on the cards found.
 dep_tristate '  PCI MTD driver' CONFIG_MTD_PCI $CONFIG_MTD $CONFIG_PCI
 dep_tristate '  PCMCIA MTD driver' CONFIG_MTD_PCMCIA $CONFIG_MTD $CONFIG_PCMCIA

drivers/mtd/maps/Makefile

@@ -22 +22 @@
 obj-$(CONFIG_MTD_L440GX)        += l440gx.o
 obj-$(CONFIG_MTD_AMD76XROM)     += amd76xrom.o
 obj-$(CONFIG_MTD_ICH2ROM)       += ich2rom.o
+obj-$(CONFIG_MTD_TEKXP_OPTROM)  += tekxp_optrom.o
 obj-$(CONFIG_MTD_TSUNAMI)       += tsunami_flash.o
 obj-$(CONFIG_MTD_MBX860)        += mbx860.o
 obj-$(CONFIG_MTD_NORA)          += nora.o

drivers/mtd/maps/tekxp_optrom.c

@@ +1 @@
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <asm/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/config.h>
+
+/*
+ * Maximum number of ROMS supported by this drivers.
+ *
+ * There will be definitely be no more, since the address space for them
+ * is restricted to what those 16 may span.
+ */
+#define MAX_NUM_OPTROM  16
+
+/*
+ * Virtual address of the address space potentially used by the ROMs.
+ */
+static unsigned long possible_rom_memory;
+
+/*
+ * Structure holding just the information needed for the MTD framework.
+ * The driver itself needs no further information about a single ROM.
+ */
+typedef struct {
+        struct map_info         map;
+        struct mtd_info         *mtd;
+} optrom_desc_t;
+
+static int num_optrom;
+static optrom_desc_t optrom_desc[MAX_NUM_OPTROM];
+
+/*
+ * Check if a ROM is present and determinate its size.
+ */
+static unsigned int __init detect_optrom_size(unsigned long start_address)
+{
+        unsigned long original = *(unsigned long *)start_address;
+
+        /*
+         * We try to write into the ROM. It will not fault on us.
+         */
+        *(volatile unsigned long *)start_address = ~original;
+
+        /*
+         * If the write did not change there is a ROM or nothing.
+         */
+        if ( *(volatile unsigned long *)start_address == original )
+        {
+                /*
+                 * But the Nothing will fail to report a correct size.
+                 *
+                 * Yes, the size is stored at a given position within the
+                 * ROM. So if someone did create ROMs on his own behalf
+                 * not following the "specification" this driver will
+                 * fail to detect them.
+                 *
+                 * Do NOT fix this! It is intended behaviour since the
+                 * future goal of this driver is to present the filesystem
+                 * stored in the original ROMs.
+                 */
+                unsigned short size = *(unsigned short *)(start_address + 6);
+                if ( size == 0x80 || size == 0x100 || size == 0x200 || size == 0x400 )
+                        return size * 1024;
+        }
+
+        /*
+         * If we hit something else try to restore the original content.
+         */
+        *(unsigned long *)start_address = original;
+
+        return 0;
+}
+
+/*
+ * Just the obvious way to copy memory around.
+ */
+static void optrom_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+{
+        memcpy(to, (char *)map->map_priv_1 + from, len);
+}
+
+/*
+ * We can not write into the ROMs.
+ */
+static void optrom_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+{
+}
+
+/*
+ * Initialization
+ */
+static int __init init_optrom(void)
+{
+        int i;
+
+        /*
+         * Get all memory mapped that may hold a ROM. This might have to
+         * be switched to a less gready sheme if causing any problems.
+         */
+        possible_rom_memory = (unsigned long)ioremap_nocache(0x1000000, MAX_NUM_OPTROM * 0x100000);
+        if ( !possible_rom_memory )
+        {
+                printk(KERN_WARNING "Could not map optroms into the virtual memory space\n");
+                return -ENXIO;
+        }
+
+        /*
+         * Search through the complete address space for any ROM.
+         * If any ROM is found register it with the MTD framework.
+         */
+        for ( i=0; i<MAX_NUM_OPTROM; i++ )
+        {
+                unsigned int size = detect_optrom_size(possible_rom_memory + i * 0x100000);
+                if ( size > 0 )
+                {
+                        optrom_desc_t *desc = &optrom_desc[num_optrom];
+
+                        printk(KERN_INFO "Found optional ROM of size %u at %08x\n", size, 0x1000000 + i * 0x100000);
+
+                        desc->map.name = "TekXpress optional ROM";
+                        desc->map.size = size;
+                        desc->map.map_priv_1 = possible_rom_memory + i * 0x100000;
+                        desc->map.copy_from = optrom_copy_from;
+                        desc->map.copy_to = optrom_copy_to;
+
+                        desc->mtd = do_map_probe("map_rom", &desc->map);
+                        if ( !desc->mtd )
+                        {
+                                printk(KERN_ERR "Could not allocate MTD structure\n");
+                                continue;
+                        }
+
+                        desc->mtd->module = THIS_MODULE;
+                        add_mtd_device(desc->mtd);
+
+                        num_optrom++;
+                }
+
+        }
+
+        if ( num_optrom <= 0 )
+        {
+                iounmap((void *)possible_rom_memory);
+                printk(KERN_WARNING "No optional rom found\n");
+                return -ENXIO;
+        }
+
+        return 0;
+}
+
+/*
+ * Unregister all ROMs found from the MTD framework.
+ */
+void __exit cleanup_optrom(void)
+{
+        while ( num_optrom-- )
+        {
+                optrom_desc_t *desc = &optrom_desc[num_optrom];
+
+                del_mtd_device(desc->mtd);
+                map_destroy(desc->mtd);
+        }
+
+        iounmap((void*)possible_rom_memory);
+}
+
+
+
+module_init(init_optrom);
+module_exit(cleanup_optrom);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michael Mueller <malware@t-online.de>");
+MODULE_DESCRIPTION("MTD map driver for optional ROM of the TekXpress XP2x X-Terminals");
+

drivers/net/Makefile

@@ -95 +95 @@
 obj-$(CONFIG_FEALNX) += fealnx.o mii.o
 obj-$(CONFIG_TC35815) += tc35815.o
 obj-$(CONFIG_TIGON3) += tg3.o
+obj-$(CONFIG_TEKSONIC) += teksonic.o
 
 ifeq ($(CONFIG_E100),y)
   obj-y += e100/e100.o

drivers/net/Space.c

@@ -101 +101 @@
 extern int mac8390_probe(struct net_device *dev);
 extern int mac89x0_probe(struct net_device *dev);
 extern int mc32_probe(struct net_device *dev);
+extern int teksonic_probe(struct net_device *dev);
   
 /* Detachable devices ("pocket adaptors") */
 extern int de600_probe(struct net_device *);
@@ -326 +327 @@
 };
 
 static struct devprobe m68k_probes[] __initdata = {
+#ifdef CONFIG_TEKSONIC
+        {teksonic_probe, 0},
+#endif
 #ifdef CONFIG_ATARILANCE        /* Lance-based Atari ethernet boards */
         {atarilance_probe, 0},
 #endif

drivers/net/a2065.c

@@ -284 +284 @@
         struct sk_buff *skb = 0;        /* XXX shut up gcc warnings */
 
 #ifdef TEST_HITS
+        int i;
         printk ("[");
         for (i = 0; i < RX_RING_SIZE; i++) {
                 if (i == lp->rx_new)

drivers/net/macsonic.c

@@ -199 +199 @@
         if ((lp->rba = (char *)
              kmalloc(SONIC_NUM_RRS * SONIC_RBSIZE, GFP_KERNEL | GFP_DMA)) == NULL) {
                 printk(KERN_ERR "%s: couldn't allocate receive buffers\n", dev->name);
+                kfree(lp);
                 return -ENOMEM;
         }
 
@@ -635 +636 @@
 }
 
 #ifdef MODULE
-static char namespace[16] = "";
 static struct net_device dev_macsonic;
 
 MODULE_PARM(sonic_debug, "i");
 MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
-MODULE_LICENSE("GPL");
-
-EXPORT_NO_SYMBOLS;
 
 int
 init_module(void)
 {
-        dev_macsonic.name = namespace;
         dev_macsonic.init = macsonic_probe;
 
         if (register_netdev(&dev_macsonic) != 0) {

drivers/net/teksonic.c

@@ +1 @@
+/*
+ *  linux/drivers/net/teksonic.c
+ *
+ * (C) 2003 Michael Mueller <malware@t-online.de>
+ *
+ * based on the macsonic driver:
+ *
+ * (C) 1998 Alan Cox
+ *
+ * Debugging Andreas Ehliar, Michael Schmitz
+ *
+ * Based on code
+ * (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de)
+ *
+ * This driver is based on work from Andreas Busse, but most of
+ * the code is rewritten.
+ *
+ * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de)
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/ctype.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/delay.h>
+#include <asm/system.h>
+#include <asm/bitops.h>
+#include <asm/pgtable.h>
+#include <asm/segment.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/dma.h>
+
+#include <linux/errno.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/module.h>
+#include <asm/teknvram.h>
+
+/*
+ * All registers are located at addresses dividable by 4.
+ */
+
+#define SREGS_PAD(n)    u16 n;
+
+/*
+ * This is a hack to get the endianness stuff done correctly.
+ */
+
+#define CONFIG_MACSONIC
+
+/*
+ * Generic Sonic definitions
+ */
+#include "sonic.h"
+
+#ifdef DEBUG
+
+#define SONIC_READ(reg) _SONIC_READ(base_addr, reg)
+#define SONIC_WRITE(reg,val) do { _SONIC_WRITE(base_addr, reg, val); } while(0)
+
+static inline unsigned short _SONIC_READ(unsigned long base_addr, int reg)
+{
+        unsigned short val = *((volatile unsigned long*)(base_addr + 4*(reg))) & 0xffff;
+        printk("sonic_read(%08x) = %02x\n", base_addr + 4*(reg), val);
+        return val;
+}
+
+static inline void _SONIC_WRITE(unsigned long base_addr, int reg, unsigned short val)
+{
+        printk("sonic_write(%08x,%04x)\n", base_addr + 4*(reg), val);
+        *((volatile unsigned long*)(base_addr + 4*(reg))) = (val) & 0xffff;
+}
+
+static inline unsigned short sonic_read(struct net_device *dev, int reg)
+{
+        unsigned short val = *((volatile unsigned long*)(dev->base_addr + 4*(reg))) & 0xffff;
+        printk("sonic_read(%08x) = %02x\n", dev->base_addr + 4*(reg), val);
+        return val;
+}
+
+static inline void sonic_write(struct net_device *dev, int reg, unsigned short val)
+{
+        printk("sonic_write(%08x,%04x)\n", dev->base_addr + 4*(reg), val);
+        *((volatile unsigned long*)(dev->base_addr + 4*(reg))) = (val) & 0xffff;
+}
+
+#else
+
+#define SONIC_READ(reg) ((unsigned short)(*(volatile unsigned long *)((base_addr) + 4*(reg))) & 0xffff)
+
+#define SONIC_WRITE(reg, val) do { *(volatile unsigned long*)((base_addr) + 4*(reg)) = (val)& 0xffff; } while (0)
+
+#define sonic_read(dev,reg) ((unsigned short)(*(volatile unsigned long *)((dev)->base_addr + 4*(reg))) & 0xffff)
+
+#define sonic_write(dev, reg, val) do { *(volatile unsigned long*)((dev)->base_addr + 4*(reg)) = (val)& 0xffff; } while (0)
+
+#endif
+
+static int sonic_debug = 0;
+static int sonic_version_printed;
+
+static int reg_offset;
+
+int teksonic_init(struct net_device* dev)
+{
+        int i,j;
+        struct sonic_local* lp_alloc[20];
+        struct sonic_local* lp;
+
+        /* Allocate the entire chunk of memory for the descriptors.
+           Note that this cannot cross a 64K boundary. */
+        for (i = 0; i < 20; i++) {
+                unsigned long desc_base, desc_top, desc_top2;
+                if((lp_alloc[i] = kmalloc(sizeof(struct sonic_local), GFP_KERNEL)) == NULL) {
+                        printk(KERN_ERR "%s: couldn't allocate descriptor buffers\n", dev->name);
+                        return -ENOMEM;
+                }
+                desc_base = (unsigned long)virt_to_phys(lp_alloc[i]);
+                desc_top = desc_base + sizeof(struct sonic_local);
+                desc_top2 = (unsigned long)virt_to_phys(lp_alloc[i] + 1);
+
+                if ( (desc_top == desc_top2) && (desc_top & 0xffff) >= (desc_base & 0xffff))
+                        break;
+
+                /* Hmm. try again (FIXME: does this actually work?) */
+                /* Note: It did not work when freeing the memory allocated
+                         previously since it got the same memory again. */
+/*              kfree(lp);      */
+                printk(KERN_DEBUG
+                       "%s: didn't get continguous chunk [%08lx - %08lx], trying again\n",
+                       dev->name, desc_base, desc_top);
+
+        }
+
+        /* Deallocate what was allocated just to get the alignment done. */
+        for ( j = i-1; j >= 0; j-- )
+                kfree(lp_alloc[j]);
+
+        if (i==20) {
+                /* Note: Do not free dev->priv, it is deallocated later! */
+                printk(KERN_ERR "%s: tried 20 times to allocate descriptor buffers, giving up.\n",
+                       dev->name);
+                return -ENOMEM;
+        }
+
+        dev->priv = lp = lp_alloc[i];
+
+        memset(lp, 0, sizeof(struct sonic_local));
+
+        lp->cda_laddr = virt_to_phys(&(lp->cda));
+        lp->tda_laddr = virt_to_phys(lp->tda);
+        lp->rra_laddr = virt_to_phys(lp->rra);
+        lp->rda_laddr = virt_to_phys(lp->rda);
+
+        /* FIXME, maybe we should use skbs */
+        if ((lp->rba = (char *)kmalloc(SONIC_NUM_RRS * SONIC_RBSIZE, GFP_KERNEL)) == NULL) {
+                printk(KERN_ERR "%s: couldn't allocate receive buffers\n", dev->name);
+                return -ENOMEM;
+        }
+        lp->rba_laddr = virt_to_phys(lp->rba);
+
+#if 0
+        {
+                int rs, ds;
+
+                /* almost always 12*4096, but let's not take chances */
+                rs = ((SONIC_NUM_RRS * SONIC_RBSIZE + 4095) / 4096) * 4096;
+                /* almost always under a page, but let's not take chances */
+                ds = ((sizeof(struct sonic_local) + 4095) / 4096) * 4096;
+                kernel_set_cachemode(lp->rba, rs, IOMAP_NOCACHE_SER);
+                kernel_set_cachemode(lp, ds, IOMAP_NOCACHE_SER);
+        }
+#endif
+
+
+#if 0
+        flush_cache_all();
+#endif
+
+        dev->open = sonic_open;
+        dev->stop = sonic_close;
+        dev->hard_start_xmit = sonic_send_packet;
+        dev->get_stats = sonic_get_stats;
+        dev->set_multicast_list = &sonic_multicast_list;
+
+        /*
+         * clear tally counter
+         */
+        sonic_write(dev, SONIC_CRCT, 0xffff);
+        sonic_write(dev, SONIC_FAET, 0xffff);
+        sonic_write(dev, SONIC_MPT, 0xffff);
+
+        /* Fill in the fields of the device structure with ethernet values. */
+        ether_setup(dev);
+        return 0;
+}
+
+int teksonic_ethernet_addr(struct net_device* dev)
+{
+        int i;
+
+        /* On NuBus boards we can sometimes look in the ROM resources.
+           No such luck for comm-slot/onboard. */
+        for(i = 0; i < 6; i++)
+                dev->dev_addr[i] = nvram_readb(NVRAM_SONIC_MAC+i);
+
+        return 0;
+}
+
+int teksonic_probe(struct net_device* dev)
+{
+        /* Bwahahaha */
+        static int once_is_more_than_enough;
+        int i;
+        int dma_bitmode;
+
+        if (once_is_more_than_enough)
+                return -ENODEV;
+        once_is_more_than_enough = 1;
+
+        if (dev) {
+                dev = init_etherdev(dev, sizeof(struct sonic_local));
+                if (!dev)
+                        return -ENOMEM;
+        } else {
+                dev = init_etherdev(NULL, sizeof(struct sonic_local));
+        }
+        if (dev->priv != NULL) {
+                kfree(dev->priv);
+                dev->priv = NULL;
+        }
+
+        if (dev == NULL)
+                return -ENOMEM;
+
+        /* Danger!  My arms are flailing wildly!  You *must* set this
+           before using sonic_read() */
+
+        dev->base_addr = 0xFFC00000;    // FIXME: This does rely on transparent translation
+        dev->irq = IRQ6;
+
+        if (!sonic_version_printed) {
+                printk(KERN_INFO "%s", version);
+                sonic_version_printed = 1;
+        }
+        printk(KERN_INFO "%s: SONIC at 0x%08lx\n",
+               dev->name, dev->base_addr);
+
+        reg_offset = 0;
+        dma_bitmode = 1;
+
+        /* Software reset, then initialize control registers. */
+        sonic_write(dev, SONIC_CMD, SONIC_CR_RST);
+
+        sonic_write(dev, SONIC_DCR, SONIC_DCR_BMS |
+                    SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_EXBUS |
+                    (dma_bitmode ? SONIC_DCR_DW : 0));
+#if 0
+        sonic_write(dev, SONIC_DCR, 0x3F);
+#endif
+
+        /* This *must* be written back to in order to restore the
+           extended programmable output bits */
+        sonic_write(dev, SONIC_DCR2, 0);
+
+        sonic_write(dev, SONIC_CMD, 0);
+
+        /* Clear *and* disable interrupts to be on the safe side */
+        sonic_write(dev, SONIC_ISR,0x7fff);
+        sonic_write(dev, SONIC_IMR,0);
+
+        /* Now look for the MAC address. */
+        if (teksonic_ethernet_addr(dev) != 0)
+                return -ENODEV;
+
+        printk(KERN_INFO "MAC ");
+        for (i = 0; i < 6; i++) {
+                printk("%2.2x", dev->dev_addr[i]);
+                if (i < 5)
+                        printk(":");
+        }
+
+        printk(" IRQ %d\n", dev->irq);
+
+        /* Shared init code */
+        return teksonic_init(dev);
+}
+
+
+#define vdma_alloc(foo, bar) ((u32)(foo))
+#define vdma_free(baz)
+#define sonic_chiptomem(bat) (phys_to_virt(bat))
+#define PHYSADDR(quux) (virt_to_phys((void*)(quux)))
+
+#define sonic_request_irq       request_irq
+#define sonic_free_irq          free_irq
+
+#include "sonic.c"
+

drivers/sbus/char/sunkbd.c

@@ -761 +761 @@
 
 static void boot_it(void)
 {
+#if !defined(CONFIG_SUN3) && !defined(CONFIG_SUN3X)
         extern int obp_system_intr(void);
 
         if (!obp_system_intr())
@@ -768 +769 @@
         /* sigh.. attempt to prevent multiple entry */
         last_keycode=1;
         rep = 0;
+#endif
 }
 
 static void compose(void)
@@ -1232 +1234 @@
 
 int __init sun_kbd_init(void)
 {
-        int i, opt_node;
+        int i;
         struct kbd_struct kbd0;
         extern struct tty_driver console_driver;
 
@@ -1250 +1252 @@
 
         kd_mksound = sunkbd_kd_mksound;
 
+#ifndef CONFIG_SUN3X_ZS
         /* XXX Check keyboard-click? property in 'options' PROM node XXX */
         if(sparc_cpu_model != sun4) {
-                opt_node = prom_getchild(prom_root_node);
+                int opt_node = prom_getchild(prom_root_node);
                 opt_node = prom_searchsiblings(opt_node, "options");
                 i = prom_getintdefault(opt_node, "keyboard-click?", -1);
                 if(i != -1)
                         sunkbd_clickp = 1;
                 else
                         sunkbd_clickp = 0;
-        } else {
+        } else
+#else
+        {
                 sunkbd_clickp = 0;
         }
+#endif
 
         keyboard_tasklet.func = sun_kbd_bh;
 

drivers/sbus/char/sunserial.c

@@ -10 +10 @@
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/tty.h>
+
+#ifdef CONFIG_SUN3
+#include <linux/sched.h>
+#include <asm/ptrace.h>
+#include <linux/interrupt.h>
+#endif
+
 #include <linux/serial.h>
 #include <linux/serialP.h>
 #include <linux/string.h>
@@ -228 +235 @@
 void
 sunserial_console_termios(struct console *con)
 {
+#ifndef CONFIG_SUN3X_ZS
         char mode[16], buf[16], *s;
         char *mode_prop = "ttyX-mode";
         char *cd_prop = "ttyX-ignore-cd";
@@ -331 +339 @@
         }
 
         con->cflag = cflag;
+#else /* CONFIG_SUN3 */
+        con->cflag = CREAD | HUPCL | CLOCAL | B9600 | CS8;
+#endif /* CONFIG_SUN3 */
 }
 
 void
@@ -452 +463 @@
         }
 #endif
 
+#ifndef CONFIG_SUN3X_ZS
         prom_printf("No serial devices found, bailing out.\n");
         prom_halt();
+#endif
+        
 }

drivers/sbus/char/zs.c

@@ -11 +11 @@
  * /proc/tty/driver/serial now exists and is readable.
  *   Alex Buell <alex.buell@tahallah.demon.co.uk>, 2001-12-23
  *
+ * Tweaks for sun3x by Oliver Jowett <oliver@jowett.manawatu.gen.nz>
+ *
  */
 
 #include <linux/errno.h>
@@ -39 +41 @@
 #include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/bitops.h>
+
+#include <asm/sbus.h>
+#ifndef CONFIG_SUN3X_ZS
 #include <asm/kdebug.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 
-#include <asm/sbus.h>
 #ifdef __sparc_v9__
 #include <asm/fhc.h>
 #endif
 #ifdef CONFIG_PCI
 #include <linux/pci.h>
 #endif
+#else /* CONFIG_SUN3X_ZS */
+#include <linux/ioport.h>
+#ifndef CONFIG_SUN3X
+#include <asm/sun3mmu.h>
+#else
+#include <asm/sun3xprom.h>
+#endif
+#endif /* CONFIG_SUN3X_ZS */
 
 #include "sunserial.h"
 #include "zs.h"
 #include "sunkbd.h"
 #include "sunmouse.h"
 
+/* some sun3 boxen always use vectors */
+#ifdef CONFIG_SUN3
+#undef NV
+#define NV 0
+#endif
+
 static int num_serial = 2; /* sun4/sun4c/sun4m - Two chips on board. */
 #define NUM_SERIAL num_serial
 #define NUM_CHANNELS (NUM_SERIAL * 2)
@@ -425 +443 @@
  */
 void batten_down_hatches(void)
 {
+#ifndef CONFIG_SUN3X_ZS
         if (!stop_a_enabled)
                 return;
         /* If we are doing kadb, we call the debugger
@@ -448 +467 @@
          */
 
         return;
+#else /* CONFIG_SUN3X_ZS */
+#ifndef CONFIG_SUN3X
+        prom_reboot("");
+#else
+        sun3x_reboot();
+#endif
+#endif /* CONFIG_SUN3X_ZS */
 }
 
 
@@ -550 +576 @@
                  * arch/sparc/kernel/sparc-stub.c to see how all this works.
                  */
                 if (info->kgdb_channel && (ch =='\003')) {
+#ifndef CONFIG_SUN3X_ZS
                         breakpoint();
+#endif
                         return;
                 }
 #endif
@@ -683 +711 @@
         for (i = 0; i < NUM_SERIAL; i++) {
                 unsigned char r3 = read_zsreg(info->zs_channel, 3);
 
+                /* some sun3's need the pending flags cleared */
+#ifdef CONFIG_SUN3
+                unsigned char r2 = read_zsreg(info->zs_next->zs_channel, 2);
+                r2 &= STATUS_MASK;
+                if(r2 & 0x8) {
+                        sbus_writeb(RES_H_IUS, &info->zs_channel->control);
+                        ZSDELAY();
+                        ZS_WSYNC(info->zs_channel);
+                        ZSLOG(REGCTRL, RES_H_IUS, 1);
+                } else {
+                        sbus_writeb(RES_H_IUS, &info->zs_next->zs_channel->control);
+                        ZSDELAY();
+                        ZS_WSYNC(info->zs_next->zs_channel);
+                        ZSLOG(REGCTRL, RES_H_IUS, 1);
+                }
+#endif
+
                 /* Channel A -- /dev/ttya or /dev/kbd, could be the console */
                 if (r3 & (CHAEXT | CHATxIP | CHARxIP)) {
                         sbus_writeb(RES_H_IUS, &info->zs_channel->control);
@@ -1964 +2009 @@
 
 /* Finally, routines used to initialize the serial driver. */
 
+
+#ifdef CONFIG_SUN3X_ZS
+
+static void show_serial_version(void)
+{
+        char *revision = "$Revision: 1.5 $";
+        char *version, *p;
+
+        version = strchr(revision, ' ');
+        p = strchr(++version, ' ');
+        *p = '\0';
+        printk("sun3/3x Zilog8530 serial driver version %s\n", version);
+        *p = ' ';
+}
+
+static struct sun_zslayout * __init  
+           get_zs(int chip)
+{
+        unsigned int vaddr = 0;
+        unsigned long iopte;
+        static int irq = 0;
+
+        if(chip < 0 || chip >= NUM_SERIAL)
+                panic("get_zs bogon zs chip number");
+
+#ifndef CONFIG_SUN3X 
+        /* sun3 OBIO version */
+        /* Grrr, these have to be hardcoded aieee */
+        switch(chip) {
+        case 0:
+                for(vaddr = 0xfe00000; vaddr < (0xfe00000 +
+                                                SUN3_PMEG_SIZE); vaddr += SUN3_PTE_SIZE) {
+                        
+                        iopte = sun3_get_pte(vaddr);
+                        if(!(iopte & SUN3_PAGE_TYPE_IO)) /* this an io page? */
+                                continue;
+                        
+                        if(((iopte & SUN3_PAGE_PGNUM_MASK) << PAGE_SHIFT) ==
+                           0x20000) {
+                                break;
+                        }
+                }
+                break;
+        case 1:
+                for(vaddr = 0xfe00000; vaddr < (0xfe00000 +
+                                                SUN3_PMEG_SIZE); vaddr += SUN3_PTE_SIZE) {
+                  
+                        iopte = sun3_get_pte(vaddr);
+                        if(!(iopte & SUN3_PAGE_TYPE_IO)) /* this an io page? */
+                                continue;
+                  
+                        if(((iopte & SUN3_PAGE_PGNUM_MASK) << PAGE_SHIFT) ==
+                           0) {
+                                break;
+                        }
+                }
+                break;
+        };
+#else
+        /* sun3x is a wee bit cleaner. :) */
+        switch(chip) {
+        case 0:
+                vaddr = SUN3X_ZS2;
+                break;
+
+        case 1:
+                vaddr = SUN3X_ZS1;
+                break;
+        }
+#endif  
+        
+        zs_nodes[chip] = 0;
+        zilog_irq = irq = 6;
+        
+        if(!vaddr)
+                panic("get_zs whee no serial chip mappable");
+        
+        return (struct sun_zslayout *)(unsigned long) vaddr;
+}
+ 
+#else /* !CONFIG_SUN3X_ZS */
+
 static void show_serial_version(void)
 {
         char *revision = "$Revision: 1.68.2.2 $";
@@ -2224 +2351 @@
         return (struct sun_zslayout *)(unsigned long) vaddr[0];
 }
 #endif
+
+#endif /* !CONFIG_SUN3X_ZS */
+        
 /* This is for the auto baud rate detection in the mouse driver. */
 void zs_change_mouse_baud(int newbaud)
 {
@@ -2292 +2422 @@
 
 int __init zs_probe(void)
 {
+#ifndef CONFIG_SUN3X_ZS
+
         int node;
 
         if(sparc_cpu_model == sun4)
@@ -2344 +2476 @@
         NUM_SERIAL = 2;
 
 no_probe:
+#endif /* !CONFIG_SUN3X_ZS */
+
         zs_alloc_tables();
 
         /* Fill in rs_ops struct... */
@@ -2501 +2635 @@
         /* Initialize Softinfo */
         zs_prepare();
 
+#ifndef CONFIG_SUN3X_ZS
         /* Grab IRQ line before poking the chips so we do
          * not lose any interrupts.
          */
@@ -2509 +2644 @@
                 prom_printf("Unable to attach zs intr\n");
                 prom_halt();
         }
+#endif /* !CONFIG_SUN3X_ZS */
 
         /* Initialize Hardware */
         for(channel = 0; channel < NUM_CHANNELS; channel++) {
@@ -2517 +2653 @@
                         write_zsreg(zs_soft[channel].zs_channel, R9, FHWRES);
                         ZSDELAY_LONG();
                         dummy = read_zsreg(zs_soft[channel].zs_channel, R0);
+#ifdef CONFIG_SUN3
+                        /* program the int vector */
+                        write_zsreg(zs_soft[channel].zs_channel, R2, 0x18+zilog_irq);
+#endif
                 }
 
                 if(channel == KEYBOARD_LINE) {
@@ -2676 +2816 @@
                 info->normal_termios = serial_driver.init_termios;
                 init_waitqueue_head(&info->open_wait);
                 init_waitqueue_head(&info->close_wait);
+#ifdef CONFIG_SUN3X_ZS
+                printk("tty%02d at 0x%04x (irq = %d)", info->line, 
+                       info->port, info->irq);
+#else /* !CONFIG_SUN3X_ZS */
                 printk("tty%02d at 0x%04x (irq = %s)", info->line, 
                        info->port, __irq_itoa(info->irq));
+#endif /* !CONFIG_SUN3X_ZS */
                 printk(" is a Zilog8530\n");
         }
 
+#ifdef CONFIG_SUN3X_ZS
+        if (request_irq(zilog_irq, zs_interrupt,
+                        (SA_INTERRUPT),
+                        "Zilog8530", zs_chain))
+                panic("Unable to attach zs intr\n");
+#endif /* CONFIG_SUN3X_ZS */
+
         restore_flags(flags);
 
         keyboard_zsinit(kbd_put_char);
@@ -2881 +3033 @@
 {
         extern int con_is_present(void);
 
+#ifndef CONFIG_SUN3X_ZS
         if (con_is_present())
                 return 0;
 
         zs_console.index = serial_console - 1;
+#else /* CONFIG_SUN3X_ZS */
+        zs_console.index = 0;
+#endif /* CONFIG_SUN3X_ZS */
+
         register_console(&zs_console);
         return 0;
 }

drivers/scsi/NCR53C9x.c

@@ -917 +917 @@
                 if (esp->dma_mmu_get_scsi_one)
                         esp->dma_mmu_get_scsi_one(esp, sp);
                 else
-                        sp->SCp.have_data_in = (int) sp->SCp.ptr =
+                        sp->SCp.ptr =
                                 (char *) virt_to_phys(sp->request_buffer);
         } else {
                 sp->SCp.buffer = (struct scatterlist *) sp->buffer;

drivers/scsi/oktagon_esp.c

@@ -548 +548 @@
 
 void dma_mmu_get_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd *sp)
 {
-        sp->SCp.have_data_in = (int) sp->SCp.ptr =
+        sp->SCp.ptr =
                 sp->request_buffer;
 }
 

drivers/video/Config.in

@@ -43 +43 @@
    if [ "$CONFIG_Q40" = "y" ]; then
       define_bool CONFIG_FB_Q40 y
    fi
+   if [ "$CONFIG_TEKXP" = "y" ]; then
+      define_bool CONFIG_FB_TEKXP y
+   fi
    if [ "$CONFIG_AMIGA" = "y" ]; then
       tristate '  Amiga native chipset support' CONFIG_FB_AMIGA
       if [ "$CONFIG_FB_AMIGA" != "n" ]; then
@@ -107 +110 @@
       bool '  Sun3 framebuffer support' CONFIG_FB_SUN3
       if [ "$CONFIG_FB_SUN3" != "n" ]; then
          bool '    BWtwo support' CONFIG_FB_BWTWO
+         bool '    CGthree support' CONFIG_FB_CGTHREE
          bool '    CGsix (GX,TurboGX) support' CONFIG_FB_CGSIX
       fi
    fi
@@ -265 +269 @@
            "$CONFIG_FB_MAC" = "y" -o "$CONFIG_FB_RETINAZ3" = "y" -o \
            "$CONFIG_FB_VIRGE" = "y" -o "$CONFIG_FB_VIRTUAL" = "y" -o \
            "$CONFIG_FB_BWTWO" = "y" -o "$CONFIG_FB_CLGEN" = "y"  -o \
-           "$CONFIG_FB_TX3912" = "y" ]; then
+           "$CONFIG_FB_TX3912" = "y" -o "$CONFIG_FB_TEKXP" = "y" ]; then
          define_tristate CONFIG_FBCON_MFB y
       else
          if [ "$CONFIG_FB_ACORN" = "m" -o "$CONFIG_FB_AMIGA" = "m" -o \
@@ -281 +285 @@
            "$CONFIG_FB_SA1100" = "y" -o "$CONFIG_FB_VIRTUAL" = "y" -o \
            "$CONFIG_FB_TX3912" = "y" ]; then
          define_tristate CONFIG_FBCON_CFB2 y
-         define_tristate CONFIG_FBCON_CFB4 y
       else
-         if [ "$CONFIG_FB_ACORN" = "m" -o "$CONFIG_FB_MAC" = "m" -o \
+         if [ "$CONFIG_FB_ACORN" = "m" -o "$CONFIG_FB_MAC" = "m" -o \
               "$CONFIG_FB_SA1100" = "m" -o "$CONFIG_FB_VIRTUAL" = "m" -o \
               "$CONFIG_FB_TX3912" = "m" ]; then
             define_tristate CONFIG_FBCON_CFB2 m
+         fi
+      fi
+      if [ "$CONFIG_FB_ACORN" = "y" -o "$CONFIG_FB_MAC" = "y" -o \
+           "$CONFIG_FB_SA1100" = "y" -o "$CONFIG_FB_VIRTUAL" = "y" -o \
+           "$CONFIG_FB_TX3912" = "y" -o "$CONFIG_FB_TEKXP" = "y" ]; then
+         define_tristate CONFIG_FBCON_CFB4 y
+      else
+         if [ "$CONFIG_FB_ACORN" = "m" -o "$CONFIG_FB_MAC" = "m" -o \
+              "$CONFIG_FB_SA1100" = "m" -o "$CONFIG_FB_VIRTUAL" = "m" -o \
+              "$CONFIG_FB_TX3912" = "m" ]; then
             define_tristate CONFIG_FBCON_CFB4 m
          fi
       fi
@@ -312 +325 @@
            "$CONFIG_FB_TX3912" = "y" -o \
            "$CONFIG_FB_SIS" = "y" -o "$CONFIG_FB_NEOMAGIC" = "y" -o \
            "$CONFIG_FB_STI" = "y" -o "$CONFIG_FB_HP300" = "y" -o \
-           "$CONFIG_FB_INTEL" = "y" ]; then
+           "$CONFIG_FB_INTEL" = "y" -o "$CONFIG_FB_TEKXP" = "y" ]; then
          define_tristate CONFIG_FBCON_CFB8 y
       else
          if [ "$CONFIG_FB_ACORN" = "m" -o "$CONFIG_FB_ATARI" = "m" -o \

drivers/video/Makefile

@@ -73 +73 @@
 obj-$(CONFIG_FB_VIRGE)            += virgefb.o
 obj-$(CONFIG_FB_G364)             += g364fb.o
 obj-$(CONFIG_FB_FM2)              += fm2fb.o
-obj-$(CONFIG_FB_CREATOR)          += creatorfb.o sbusfb.o
-obj-$(CONFIG_FB_CGSIX)            += cgsixfb.o sbusfb.o
-obj-$(CONFIG_FB_BWTWO)            += bwtwofb.o sbusfb.o
-obj-$(CONFIG_FB_CGTHREE)          += cgthreefb.o sbusfb.o
-obj-$(CONFIG_FB_TCX)              += tcxfb.o sbusfb.o
-obj-$(CONFIG_FB_CGFOURTEEN)       += cgfourteenfb.o sbusfb.o
-obj-$(CONFIG_FB_P9100)            += p9100fb.o sbusfb.o
-obj-$(CONFIG_FB_LEO)              += leofb.o sbusfb.o
+
+SBUSFB  =
+ifneq ($(CONFIG_SUN3),y)
+ifneq ($(CONFIG_SUN3X),y)
+    SBUSFB      = sbusfb.o
+endif
+endif
+
+obj-$(CONFIG_FB_CREATOR)          += creatorfb.o $(SBUSFB)
+obj-$(CONFIG_FB_CGSIX)            += cgsixfb.o $(SBUSFB)
+obj-$(CONFIG_FB_BWTWO)            += bwtwofb.o $(SBUSFB)
+obj-$(CONFIG_FB_CGTHREE)          += cgthreefb.o $(SBUSFB)
+obj-$(CONFIG_FB_TCX)              += tcxfb.o $(SBUSFB)
+obj-$(CONFIG_FB_CGFOURTEEN)       += cgfourteenfb.o $(SBUSFB)
+obj-$(CONFIG_FB_P9100)            += p9100fb.o $(SBUSFB)
+obj-$(CONFIG_FB_LEO)              += leofb.o $(SBUSFB)
 obj-$(CONFIG_FB_PMAG_AA)          += pmag-aa-fb.o
 obj-$(CONFIG_FB_PMAG_BA)          += pmag-ba-fb.o
 obj-$(CONFIG_FB_PMAGB_B)          += pmagb-b-fb.o
@@ -125 +133 @@
 endif
 
 obj-$(CONFIG_FB_SUN3)             += sun3fb.o
-obj-$(CONFIG_FB_BWTWO)            += bwtwofb.o
 obj-$(CONFIG_FB_HGA)              += hgafb.o  
 obj-$(CONFIG_FB_SA1100)           += sa1100fb.o
 obj-$(CONFIG_FB_VIRTUAL)          += vfb.o  
@@ -134 +141 @@
 obj-$(CONFIG_FB_E1356)            += epson1356fb.o
 obj-$(CONFIG_FB_PVR2)             += pvr2fb.o
 obj-$(CONFIG_FB_VOODOO1)          += sstfb.o
+obj-$(CONFIG_FB_TEKXP)            += tek_fb.o
 
 # Generic Low Level Drivers
 

drivers/video/cgthreefb.c

@@ -178 +178 @@
         struct display *disp = &fb->disp;
         struct fbtype *type = &fb->type;
         struct sbus_dev *sdev = fb->sbdp;
+#ifndef CONFIG_SUN3
         unsigned long phys = sdev->reg_addrs[0].phys_addr;
         int cgRDI = strstr(fb->sbdp->prom_name, "cgRDI") != NULL;
+#endif
 
 #ifndef FBCON_HAS_CFB8
         return NULL;
 #endif
 
+#ifndef CONFIG_SUN3
         if (!fb->s.cg3.regs) {
                 fb->s.cg3.regs = (struct cg3_regs *)
                         sbus_ioremap(&sdev->resource[0], CG3_REGS_OFFSET,
@@ -211 +214 @@
                         }
                 }
         }
+#else
+        fb->s.cg3.regs = (struct cg3_regs *)0x0fe0e000;
+#endif
 
         strcpy(fb->info.modename, "CGthree");
         strcpy(fix->id, "CGthree");
@@ -218 +224 @@
         fix->accel = FB_ACCEL_SUN_CGTHREE;
         
         disp->scrollmode = SCROLL_YREDRAW;
+#ifndef CONFIG_SUN3
         if (!disp->screen_base) {
                 disp->screen_base = (char *)
                         sbus_ioremap(&sdev->resource[0], CG3_RAM_OFFSET,
                                      type->fb_size, "cg3 ram");
         }
-        disp->screen_base += fix->line_length * fb->y_margin + fb->x_margin;
+        fb->physbase = phys;
+#else
+        disp->screen_base = (char *)0x0fd00000;
+        fb->physbase = (unsigned long)0x0fd00000;
+#endif
+
+//      disp->screen_base += fix->line_length * fb->y_margin + fb->x_margin;
         fb->dispsw = fbcon_cfb8;
 
         fb->margins = cg3_margins;
@@ -231 +244 @@
         fb->blank = cg3_blank;
         fb->unblank = cg3_unblank;
         
-        fb->physbase = phys;
         fb->mmap_map = cg3_mmap_map;
-        
+
+#ifndef CONFIG_SUN3     
 #ifdef __sparc_v9__     
         sprintf(idstring, "%s at %016lx", cgRDI ? "cgRDI" : "cgthree", phys);
 #else
@@ -279 +292 @@
                         sbus_writeb(p[1], regp);
                 }
         }
+#else
+        sprintf(idstring, "%s: mem %x regs %x", "cgthree", fb->physbase, fb->s.cg3.regs);
+
+        /* kick up the sun3 -- 66hz prom mode only */
+        /* this also turns off the overlay in case it's really a cg4 */
+        
+        fb->s.cg3.regs->cmap.addr = 4;
+        fb->s.cg3.regs->cmap.control = 0xff; 
+        fb->s.cg3.regs->cmap.addr = 5;
+        fb->s.cg3.regs->cmap.control = 0;
+        fb->s.cg3.regs->cmap.addr = 6;
+        fb->s.cg3.regs->cmap.control = 0x40; 
+        fb->s.cg3.regs->cmap.addr = 7;
+        fb->s.cg3.regs->cmap.control = 0;
+
+#endif
 
         return idstring;
 }

drivers/video/fbcon.c

@@ -2340 +2340 @@
             done = 1;
         }
 #endif
+#ifdef CONFIG_HP300
+    if (depth == 6 && p->type == FB_TYPE_PACKED_PIXELS) {
+        /* depth 6 or more, packed, with color registers */
+                
+        src = logo;
+        for( y1 = 0; y1 < LOGO_H; y1++ ) {
+            int c;
+            dst = fb + y1*line;
+            for( x1 = 0; x1 < LOGO_W / 2; x1++ ) {
+                fb_writeb((*src >> 4) + 16, dst++);
+                fb_writeb(((*src++) & 0xf) + 16, dst++);
+            }
+            dst += 8;
+            for (c = 0; c < 32; c++)
+              for (x1 = 0; x1 < 24; x1++)
+                *dst++ = c;
+        }
+
+        done = 1;
+    }
+#endif /* CONFIG_HP300 */
 #if defined(CONFIG_FBCON_AFB) || defined(CONFIG_FBCON_ILBM) || \
     defined(CONFIG_FBCON_IPLAN2P2) || defined(CONFIG_FBCON_IPLAN2P4) || \
     defined(CONFIG_FBCON_IPLAN2P8)
@@ -2412 +2433 @@
                     dst = fb + (y1%4)*8192 + (y1>>2)*line + x/8;
                 else
                     dst = fb + y1*line + x/8;
-                for( x1 = 0; x1 < LOGO_LINE; ++x1 )
+                for( x1 = 0; x1 < LOGO_LINE; ++x1 ) {
+#ifndef CONFIG_HP300
                     fb_writeb(*src++ ^ inverse, dst++);
+#else /* CONFIG_HP300 */
+                    /* hack hack -- make it work with topcat in pseudomono mode */
+                    char c = *src++ ^ inverse;
+                    fb_writeb((c >> 7) & 1, dst++);
+                    fb_writeb((c >> 6) & 1, dst++);
+                    fb_writeb((c >> 5) & 1, dst++);
+                    fb_writeb((c >> 4) & 1, dst++);
+                    fb_writeb((c >> 3) & 1, dst++);
+                    fb_writeb((c >> 2) & 1, dst++);
+                    fb_writeb((c >> 1) & 1, dst++);
+                    fb_writeb((c >> 0) & 1, dst++);
+#endif /* CONFIG_HP300 */
+                }
             }
             done = 1;
         }

drivers/video/fbmem.c

@@ -53 +53 @@
 extern int amifb_setup(char*);
 extern int atafb_init(void);
 extern int atafb_setup(char*);
+extern int tekfb_init(void);
 extern int macfb_init(void);
 extern int macfb_setup(char*);
 extern int cyberfb_init(void);
@@ -271 +272 @@
 #ifdef CONFIG_FB_ATARI
         { "atafb", atafb_init, atafb_setup },
 #endif
+#ifdef CONFIG_FB_TEKXP
+        { "tekfb", tekfb_init, NULL },
+#endif
 #ifdef CONFIG_FB_MAC
         { "macfb", macfb_init, macfb_setup },
 #endif
@@ -964 +968 @@
                                             fb_drivers[i].init;
                                     fb_drivers[i].init = NULL;
                             }
-                            if (fb_drivers[i].setup)
-                                    fb_drivers[i].setup(options+j+1);
                     }
+                    if (fb_drivers[i].setup)
+                            fb_drivers[i].setup(options+j+1);
                     return 0;
             }
     }

drivers/video/sun3fb.c

@@ -48 +48 @@
 
 #ifdef CONFIG_SUN3
 #include <asm/oplib.h>
+#include <asm/machines.h>
+#include <asm/idprom.h>
 #endif
 #ifdef CONFIG_SUN3X
 #include <asm/sun3x.h>
@@ -59 +61 @@
 #define CURSOR_SHAPE                    1
 #define CURSOR_BLINK                    2
 
+#define mymemset(x,y) memset(x,0,y)
+
     /*
      *  Interface used by the world
      */
 
 int sun3fb_init(void);
-int sun3fb_setup(char *options);
+void sun3fb_setup(char *options);
 
 static int currcon;
 static char fontname[40] __initdata = { 0 };
@@ -115 +119 @@
 static void sun3fb_clear_margin(struct display *p, int s)
 {
         struct fb_info_sbusfb *fb = sbusfbinfod(p);
+        
+        return;
 
         if (fb->switch_from_graph)
                 (*fb->switch_from_graph)(fb);
@@ -354 +360 @@
                 p++;
         }
 
-        return 0;
+        return;
 }
 
 static int sun3fbcon_switch(int con, struct fb_info *info)
@@ -523 +529 @@
      */
 static int __init sun3fb_init_fb(int fbtype, unsigned long addr)
 {
-        static struct linux_sbus_device sdb;
+        static struct sbus_dev sdb;
         struct fb_fix_screeninfo *fix;
         struct fb_var_screeninfo *var;
         struct display *disp;
@@ -531 +537 @@
         struct fbtype *type;
         int linebytes, w, h, depth;
         char *p = NULL;
-
+        
         fb = kmalloc(sizeof(struct fb_info_sbusfb), GFP_ATOMIC);
         if (!fb)
                 return -ENOMEM;
@@ -600 +606 @@
         case FBTYPE_SUN2BW:
                 p = bwtwofb_init(fb); break;
 #endif
+#ifdef CONFIG_FB_CGTHREE
+        case FBTYPE_SUN4COLOR:
+        case FBTYPE_SUN3COLOR:
+                p = cgthreefb_init(fb); break;
+#endif
         }
-        fix->smem_start = fb->disp.screen_base;
+        fix->smem_start = (unsigned long)fb->disp.screen_base;
         
         if (!p) {
                 kfree(fb);
@@ -656 +667 @@
         unsigned long addr;
         char p4id;
         
-        if (!con_is_present()) return;
-        printk("sun3fb_init()\n");
+        if (!con_is_present()) return -ENXIO;
 #ifdef CONFIG_SUN3
-        addr = 0xfe20000;
         switch(*(romvec->pv_fbtype))
         {
-                case FBTYPE_SUN2BW:
-                        return sun3fb_init_fb(FBTYPE_SUN2BW, addr);
-                case FBTYPE_SUN3COLOR:
-                        printk("cg3 detected but not supported\n");
-                        return -EINVAL;
+        case FBTYPE_SUN2BW:
+                addr = 0xfe20000;
+                return sun3fb_init_fb(FBTYPE_SUN2BW, addr);
+        case FBTYPE_SUN3COLOR:
+        case FBTYPE_SUN4COLOR:
+                if(idprom->id_machtype != (SM_SUN3|SM_3_60)) {
+                        printk("sun3fb: cgthree/four only supported on 3/60\n");
+                        return -ENODEV;
+                }
+                
+                addr = 0xfd00000;
+                return sun3fb_init_fb(*(romvec->pv_fbtype), addr);
+        default:
+                printk("sun3fb: unsupported framebuffer\n");
+                return -ENODEV;
         }
 #else
         addr = SUN3X_VIDEO_BASE;

drivers/video/tek_fb.c

@@ +1 @@
+/*
+ *   linux/drivers/video/tek_fb.c
+ *
+ *   Copyright (C) 2002,2003 Michael Mueller <malware@t-online.de>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ *
+ *
+ * It is basicly a hack to get the console working. So if someone feels
+ * familiar with the framebuffer API a rework would be welcome.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+
+#include <linux/fb.h>
+
+#include <video/fbcon.h>
+#ifdef CONFIG_FBCON_CFB8
+#include <video/fbcon-cfb8.h>
+#endif
+#ifdef CONFIG_FBCON_CFB4
+#include <video/fbcon-cfb4.h>
+#endif
+#ifdef CONFIG_FBCON_MFB
+#include <video/fbcon-mfb.h>
+#endif
+
+#include <asm/setup.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+
+#include <asm/teknvram.h>
+
+#define MAX_TEKFB_SIZE  (1280*1024+0x100)
+#define TEKFP_BASE      (0xDE000000UL)
+
+struct tekfb_priv {
+        u_char*         frameptr;
+        int             display_type;
+        int             display_height;
+        int             display_width;
+        int             display_coldepth;
+        int             display_fps;
+
+        u_char *        ptr;
+        u_char *        ptr_ramdac;
+        int             ramdac_type;
+        u_char *        ramdac_regs[5];
+};
+
+#define arraysize(x) (sizeof (x)/sizeof (x)[0])
+
+   /*
+    *    Interface used by the world
+    */
+
+void tekxp_video_setup(char *options, int *ints)
+{
+        // There is nothing we can do currently
+}
+
+   /*
+    *    Interface to the low level console driver
+    */
+
+static struct fb_info fb_info;
+//static int tekfb_switch(int con, struct fb_info *);
+static int tekfb_update_var(int con, struct fb_info *);
+static void tekfb_blank(int, struct fb_info *);
+
+static int tekfb_get_fix(struct fb_fix_screeninfo *, int, struct fb_info *);
+static int tekfb_get_var(struct fb_var_screeninfo *, int, struct fb_info *);
+static int tekfb_set_var(struct fb_var_screeninfo *, int, struct fb_info *);
+static int tekfb_get_cmap(struct fb_cmap *, int, int, struct fb_info *);
+static int tekfb_set_cmap(struct fb_cmap *, int, int, struct fb_info *);
+
+static struct fb_ops tekfb_ops = {
+        fb_get_fix: tekfb_get_fix,
+        fb_get_var: tekfb_get_var,
+        fb_set_var: tekfb_set_var,
+        fb_get_cmap: tekfb_get_cmap,
+        fb_set_cmap: tekfb_set_cmap,
+};
+
+static struct display disp;
+
+//static struct fb_var_screeninfo tekfb_predefined;
+
+struct fb_var_screeninfo tekfb_fixed =
+{
+        xres: 1152, yres: 900,  /* visible resolution */
+        xres_virtual: 1152, yres_virtual: 900,  /* virtual resolution */
+        xoffset: 0, yoffset: 0,         /* offset of visible within virtual */
+        bits_per_pixel: 8,              /* bits per pixel */
+        grayscale: 0,           /* grayscale */
+        red: {0, 6, 0}, /* red */
+        green: {0, 6, 0},       /* green */
+        blue: {0, 6, 0},        /* blue */
+        transp: {0, 0, 0},      /* transp */
+        nonstd: 0,              /* no non-standard pixel format */
+        activate: 0,            /* activate */
+        height: -1,             /* height in mm */
+        width: -1,              /* width in mm */
+        accel_flags: FB_ACCEL_NONE,     /* accel */
+};
+
+static const char* ramdac_names[4] = { "???", "???", "Bt459", "???" };
+
+static int get_private(struct tekfb_priv *priv)
+{
+        priv->ptr = ioremap_writethrough(0xD8200000, 0x100);
+        priv->ptr_ramdac = ioremap_writethrough(0xD8100000, 0x100);
+        if ( !priv->ptr || !priv->ptr_ramdac )
+        {
+                printk("tek_fb: Could not map ramdac into kernel memory space\n");
+                return -ENOMEM;
+        }
+
+        /*
+         * Maybe sometime I will understand how a bit field is organized.
+         * Meanwhile this assembler stuff will do the trick.
+         */
+        __asm__("bfextu %1{#6:#2}, %0\n"
+                : "=r" (priv->ramdac_type)
+                : "m" (*(priv->ptr + 1)) );
+        printk("tek_fb: RAMDAC: %d (%s)\n",
+               priv->ramdac_type, ramdac_names[priv->ramdac_type]);
+
+        if ( priv->ramdac_type & 1 )
+        {
+                priv->ramdac_regs[0] = priv->ptr_ramdac + 0;
+                priv->ramdac_regs[1] = priv->ptr_ramdac + 4;
+                priv->ramdac_regs[2] = priv->ptr_ramdac + 8;
+                priv->ramdac_regs[3] = priv->ptr_ramdac + 12;
+                priv->ramdac_regs[4] = NULL;
+        }
+        else
+        {
+                priv->ramdac_regs[0] = priv->ptr_ramdac + 0;
+                priv->ramdac_regs[1] = NULL;
+                priv->ramdac_regs[2] = priv->ptr_ramdac + 8;
+                priv->ramdac_regs[3] = priv->ptr_ramdac + 4;
+                priv->ramdac_regs[4] = priv->ptr_ramdac + 12;
+        }
+
+        priv->display_type = nvram_readw(NVRAM_DISPLAY);
+        switch ( priv->display_type )
+        {
+                case 0:
+                        priv->display_width = 1280;
+                        priv->display_height = 1024;
+                        priv->display_coldepth = 4;
+                        priv->display_fps = 72;
+                        break;
+                case 1:
+                        priv->display_width = 1152;
+                        priv->display_height = 900;
+                        priv->display_coldepth = 8;
+                        priv->display_fps = 60;
+                        break;
+                case 3:
+                        priv->display_width = 1280;
+                        priv->display_height = 1024;
+                        priv->display_coldepth = 8;
+                        priv->display_fps = 72;
+                        break;
+                case 4:
+                        priv->display_width = 1024;
+                        priv->display_height = 768;
+                        priv->display_coldepth = 8;
+                        priv->display_fps = 70;
+                        break;
+                case 5:
+                        priv->display_width = 1024;
+                        priv->display_height = 768;
+                        priv->display_coldepth = 8;
+                        priv->display_fps = 60;
+                        break;
+                case 6: // note: it is not really the same as above
+                        priv->display_width = 1024;
+                        priv->display_height = 768;
+                        priv->display_coldepth = 8;
+                        priv->display_fps = 60;
+                        break;
+                case 7:
+                        priv->display_width = 1152;
+                        priv->display_height = 900;
+                        priv->display_coldepth = 1;
+                        priv->display_fps = 72;
+                        break;
+                case 8:
+                        priv->display_width = 1280;
+                        priv->display_height = 1024;
+                        priv->display_coldepth = 1;
+                        priv->display_fps = 72;
+                        break;
+                case 9:
+                        priv->display_width = 1280;
+                        priv->display_height = 864;
+                        priv->display_coldepth = 8;
+                        priv->display_fps = 60;
+                        break;
+                default:
+                        priv->display_width = 1152;
+                        priv->display_height = 900;
+                        priv->display_coldepth = 8;
+                        priv->display_fps = 72;
+        }
+        printk("tek_fb: display type: %d (%dx%dx%d@%d)\n",
+               priv->display_type, priv->display_width,
+               priv->display_height, priv->display_coldepth,
+               priv->display_fps);
+
+        return 0;
+}
+
+static inline void set_ramdac_addr(struct tekfb_priv *priv, int addr)
+{
+        *(volatile int *)(priv->ramdac_regs[0]) = addr;
+        if ( priv->ramdac_type & 1 )
+                *(volatile int *)(priv->ramdac_regs[1]) = (addr >> 8) & 0xff;
+}
+
+static inline unsigned long get_fb_size(struct tekfb_priv *priv)
+{
+        return (priv->display_width * priv->display_height * priv->display_coldepth) / 8;
+}
+
+int __devinit tekfb_init(void)
+{
+        int err;
+        struct tekfb_priv *priv = kmalloc(sizeof (*priv), GFP_KERNEL);
+        if ( !priv )
+        {
+                printk(KERN_ERR "tek_fb: Could not allocate memory for private device data\n");
+                return -ENOMEM;
+        }
+        memset(priv, 0, sizeof (*priv));
+
+        priv->frameptr = (u_char*)ioremap_writethrough(TEKFP_BASE, MAX_TEKFB_SIZE);
+        if ( !priv->frameptr )
+        {
+                printk(KERN_ERR "tek_fb: Frame buffer did not map into kernel memory space\n");
+                return -ENOMEM;
+        }
+
+        err = get_private(priv);
+        if ( err < 0 )
+                return err;
+
+        strcpy(fb_info.modename, "TekXpress");
+        fb_info.changevar = NULL;
+        fb_info.node = -1;
+        fb_info.fbops = &tekfb_ops;
+        fb_info.disp = &disp;
+//      fb_info.switch_con = tekfb_switch;
+        fb_info.switch_con = NULL;
+        fb_info.updatevar=tekfb_update_var;
+        fb_info.blank=&tekfb_blank;
+        fb_info.flags = FBINFO_FLAG_DEFAULT;
+        fb_info.fontname[0] = 0;
+        fb_info.par = priv;
+        if ( fb_alloc_cmap(&fb_info.cmap, 1 << 8, 0) < 0 )
+        {
+                printk("tek_fb: Could not allocate color map\n");
+                return -ENOMEM;
+        }
+
+        tekfb_get_var(&disp.var, 0, &fb_info);
+        disp.screen_base = priv->frameptr + 0x100;
+        disp.type = FB_TYPE_PACKED_PIXELS;
+        disp.line_length = 0;
+        disp.can_soft_blank = 0;
+        disp.inverse = 0;
+        disp.ypanstep = 0;
+        disp.ywrapstep = 0;
+        switch ( priv->display_coldepth )
+        {
+#ifdef CONFIG_FBCON_CFB8
+        case 8:
+                disp.visual = FB_VISUAL_PSEUDOCOLOR;
+                disp.dispsw = &fbcon_cfb8;
+                break;
+#endif
+#ifdef CONFIG_FBCON_CFB4
+        case 4:
+                disp.visual = FB_VISUAL_PSEUDOCOLOR;
+                disp.dispsw = &fbcon_cfb4;
+                break;
+#endif
+#ifdef CONFIG_FBCON_MFB
+        case 1:
+                disp.visual = FB_VISUAL_MONO10;
+                disp.dispsw = &fbcon_mfb;
+                break;
+#endif
+        default:
+                panic("tek_fb: unknown/unsupported color depth %d", priv->display_coldepth);
+        }
+
+        memset(priv->frameptr + 0x100, 0, get_fb_size(priv));
+
+        return register_framebuffer(&fb_info);
+}
+
+/*
+static int tekfb_switch(int con, struct fb_info *info)
+{
+        return 0;
+}
+*/
+
+static int tekfb_update_var(int con, struct fb_info *info)
+{
+        return 0;
+}
+
+static void tekfb_blank(int m, struct fb_info *info)
+{
+}
+
+static int tekfb_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *info)
+{
+        int i;
+        struct tekfb_priv *priv = info->par;
+
+        strcpy(fix->id, "TekXpress");
+        fix->smem_start = (unsigned long)priv->frameptr + 0x100;
+        fix->smem_len   = MAX_TEKFB_SIZE - 0x100;
+        fix->type       = FB_TYPE_PACKED_PIXELS;
+        switch ( priv->display_coldepth )
+        {
+        case 8:
+        case 4:
+                fix->visual = FB_VISUAL_PSEUDOCOLOR;
+                break;
+        case 1:
+                fix->visual = FB_VISUAL_MONO10;
+                break;
+        default:
+                panic("tek_fb: unknown color depth");
+        }
+        fix->xpanstep = 0;
+        fix->ypanstep = 0;
+        fix->ywrapstep = 0;
+        fix->line_length = 0;
+        for (i=0; i<arraysize(fix->reserved); i++)
+                fix->reserved[i]=0;
+        return 0;
+
+}
+
+static int tekfb_get_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
+{
+        struct tekfb_priv *priv = info->par;
+
+        *var = tekfb_fixed;
+
+        var->xres_virtual = var->xres = priv->display_width;
+        var->yres_virtual = var->yres = priv->display_height;
+        var->xoffset = var->yoffset = 0;
+        var->bits_per_pixel = priv->display_coldepth;
+
+        return 0;
+}
+
+static int tekfb_set_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
+{
+        return 0;
+}
+
+static int tekfb_get_cmap(struct fb_cmap *cmap, int kspc, int con, struct fb_info *info)
+{
+        struct tekfb_priv *priv = info->par;
+        int iCol;
+
+        set_ramdac_addr(priv, info->cmap.start);
+        for ( iCol=0; iCol < info->cmap.len; iCol++ )
+        {
+                unsigned long r,g,b;
+
+                r = *(volatile u_long *)(priv->ramdac_regs[3]);
+                if ( priv->ramdac_type )
+                {
+                        g = *(volatile u_long *)(priv->ramdac_regs[3]);
+                        b = *(volatile u_long *)(priv->ramdac_regs[3]);
+                }
+                else
+                        b = g = r;
+
+                info->cmap.red[iCol] = r;
+                info->cmap.green[iCol] = g;
+                info->cmap.blue[iCol] = b;
+        }
+
+        fb_copy_cmap(&info->cmap, cmap, kspc ? 0 : 2);
+
+        return 0;
+}
+
+static int tekfb_set_cmap(struct fb_cmap *cmap, int kspc, int con, struct fb_info *info)
+{
+        struct tekfb_priv *priv = info->par;
+        if ( priv )
+        {
+                int iCol;
+
+                fb_copy_cmap(cmap, &info->cmap, kspc ? 0 : 1);
+
+                set_ramdac_addr(priv, info->cmap.start);
+                for ( iCol = 0; iCol < info->cmap.len; iCol++ )
+                {
+                        int r = info->cmap.red[iCol];
+                        int g = info->cmap.green[iCol];
+                        int b = info->cmap.blue[iCol];
+
+                        if ( !priv->ramdac_type )
+                                r = g = b = (38 * r + 90 * g + 128 * b) / 256;
+
+                        *(volatile u_long *)(priv->ramdac_regs[3]) = r;
+                        if ( priv->ramdac_type )
+                        {
+                                *(volatile u_long *)(priv->ramdac_regs[3]) = g;
+                                *(volatile u_long *)(priv->ramdac_regs[3]) = b;
+                        }
+
+                }
+        }
+        return 0;
+}
+

fs/Config.in

@@ -19 +19 @@
 
 dep_tristate 'Amiga FFS file system support (EXPERIMENTAL)' CONFIG_AFFS_FS $CONFIG_EXPERIMENTAL
 
+dep_tristate 'Amiga SFS file system support (read-only) (EXPERIMENTAL)' CONFIG_ASFS_FS $CONFIG_EXPERIMENTAL
+
 dep_tristate 'Apple HFS file system support (EXPERIMENTAL)' CONFIG_HFS_FS $CONFIG_EXPERIMENTAL
 
 dep_tristate 'Apple HFS+ (Extended HFS) file system support (EXPERIMENTAL)' CONFIG_HFSPLUS_FS $CONFIG_EXPERIMENTAL

fs/Makefile

@@ -55 +55 @@
 subdir-$(CONFIG_JFFS_FS)        += jffs
 subdir-$(CONFIG_JFFS2_FS)       += jffs2
 subdir-$(CONFIG_AFFS_FS)        += affs
+subdir-$(CONFIG_ASFS_FS)        += asfs
 subdir-$(CONFIG_ROMFS_FS)       += romfs
 subdir-$(CONFIG_QNX4FS_FS)      += qnx4
 subdir-$(CONFIG_UDF_FS)         += udf

fs/affs/amigaffs.c

@@ -458 +458 @@
         if (!(sb->s_flags & MS_RDONLY))
                 printk(KERN_WARNING "AFFS: Remounting filesystem read-only\n");
         sb->s_flags |= MS_RDONLY;
-        AFFS_SB->s_flags |= SF_READONLY;        /* Don't allow to remount rw */
 }
 
 void

fs/affs/bitmap.c

@@ -268 +268 @@
         return 0;
 }
 
-int
-affs_init_bitmap(struct super_block *sb)
+int affs_init_bitmap(struct super_block *sb, int *flags)
 {
         struct affs_bm_info *bm;
         struct buffer_head *bmap_bh = NULL, *bh = NULL;
@@ -277 +276 @@
         u32 size, blk, end, offset, mask;
         int i, res = 0;
 
-        if (sb->s_flags & MS_RDONLY)
+        if (*flags & MS_RDONLY)
                 return 0;
 
         if (!AFFS_ROOT_TAIL(sb, AFFS_SB->s_root_bh)->bm_flag) {
                 printk(KERN_NOTICE "AFFS: Bitmap invalid - mounting %s read only\n",
                         kdevname(sb->s_dev));
-                sb->s_flags |= MS_RDONLY;
+                *flags |= MS_RDONLY;
                 return 0;
         }
 
@@ -296 +295 @@
         bm = AFFS_SB->s_bitmap = kmalloc(size, GFP_KERNEL);
         if (!AFFS_SB->s_bitmap) {
                 printk(KERN_ERR "AFFS: Bitmap allocation failed\n");
-                return 1;
+                return -ENOMEM;
         }
         memset(AFFS_SB->s_bitmap, 0, size);
 
@@ -311 +310 @@
                 bh = affs_bread(sb, bm->bm_key);
                 if (!bh) {
                         printk(KERN_ERR "AFFS: Cannot read bitmap\n");
-                        res = 1;
+                        res = -EIO;
                         goto out;
                 }
                 if (affs_checksum_block(sb, bh)) {
                         printk(KERN_WARNING "AFFS: Bitmap %u invalid - mounting %s read only.\n",
                                bm->bm_key, kdevname(sb->s_dev));
-                        sb->s_flags |= MS_RDONLY;
+                        *flags |= MS_RDONLY;
                         goto out;
                 }
                 pr_debug("AFFS: read bitmap block %d: %d\n", blk, bm->bm_key);
@@ -333 +332 @@
                 bmap_bh = affs_bread(sb, be32_to_cpu(bmap_blk[blk]));
                 if (!bmap_bh) {
                         printk(KERN_ERR "AFFS: Cannot read bitmap extension\n");
-                        res = 1;
+                        res = -EIO;
                         goto out;
                 }
                 bmap_blk = (u32 *)bmap_bh->b_data;
@@ -378 +377 @@
         affs_brelse(bmap_bh);
         return res;
 }
+
+void affs_free_bitmap(struct super_block *sb)
+{
+        if (!AFFS_SB->s_bitmap)
+                return;
+
+        affs_brelse(AFFS_SB->s_bmap_bh);
+        AFFS_SB->s_bmap_bh = NULL;
+        AFFS_SB->s_last_bmap = ~0;
+        kfree(AFFS_SB->s_bitmap);
+        AFFS_SB->s_bitmap = NULL;
+}

fs/affs/super.c

@@ -48 +48 @@
                 mark_buffer_dirty(AFFS_SB->s_root_bh);
         }
 
-        affs_brelse(AFFS_SB->s_bmap_bh);
         if (AFFS_SB->s_prefix)
                 kfree(AFFS_SB->s_prefix);
-        kfree(AFFS_SB->s_bitmap);
+        affs_free_bitmap(sb);
         affs_brelse(AFFS_SB->s_root_bh);
 
         return;
@@ -235 +234 @@
         gid_t                    gid;
         int                      reserved;
         unsigned long            mount_flags;
+        int                      tmp_flags;     /* fix remount prototype... */
 
         pr_debug("AFFS: read_super(%s)\n",data ? (const char *)data : "no options");
 
@@ -349 +349 @@
                 printk(KERN_NOTICE "AFFS: Dircache FS - mounting %s read only\n",
                         kdevname(dev));
                 sb->s_flags |= MS_RDONLY;
-                AFFS_SB->s_flags |= SF_READONLY;
         }
         switch (chksum) {
                 case MUFS_FS:
@@ -405 +404 @@
         AFFS_SB->s_root_bh = root_bh;
         /* N.B. after this point s_root_bh must be released */
 
-        if (affs_init_bitmap(sb))
+        tmp_flags = sb->s_flags;
+        if (affs_init_bitmap(sb, &tmp_flags))
                 goto out_error;
+        sb->s_flags = tmp_flags;
 
         /* set up enough so that it can read an inode */
 
@@ -445 +446 @@
         int                      reserved;
         int                      root_block;
         unsigned long            mount_flags;
-        unsigned long            read_only = AFFS_SB->s_flags & SF_READONLY;
+        int                      res = 0;
 
         pr_debug("AFFS: remount(flags=0x%x,opts=\"%s\")\n",*flags,data);
 
         if (!parse_options(data,&uid,&gid,&mode,&reserved,&root_block,
             &blocksize,&AFFS_SB->s_prefix,AFFS_SB->s_volume,&mount_flags))
                 return -EINVAL;
-        AFFS_SB->s_flags = mount_flags | read_only;
+        AFFS_SB->s_flags = mount_flags;
         AFFS_SB->s_mode  = mode;
         AFFS_SB->s_uid   = uid;
         AFFS_SB->s_gid   = gid;
@@ -463 +464 @@
                 sb->s_dirt = 1;
                 while (sb->s_dirt)
                         affs_write_super(sb);
-                sb->s_flags |= MS_RDONLY;
-        } else if (!(AFFS_SB->s_flags & SF_READONLY)) {
-                sb->s_flags &= ~MS_RDONLY;
-        } else {
-                affs_warning(sb,"remount","Cannot remount fs read/write because of errors");
-                return -EINVAL;
-        }
-        return 0;
+                affs_free_bitmap(sb);
+        } else
+                res = affs_init_bitmap(sb, flags);
+
+        return res;
 }
 
 static int

fs/asfs/Makefile

@@ +1 @@
+#
+# Makefile for the linux asfs filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := asfs.o
+
+obj-y  := inode.o
+obj-m  := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make

fs/asfs/inode.c

@@ +1 @@
+/*
+ *
+ * Amiga Smart File System, Linux implementation
+ *
+ * version: 0.3beta (16.06.2003)
+ *  
+ * Copyright (C) 2003  Marek 'March' Szyprowski <marek@amiga.pl>
+ *
+ *
+ * Thanks to Marcin Kurek (Morgoth/Dreamolers-CAPS) for help.
+ *
+ * Based on the Linux implementation of the ROMFS file system
+ * Copyright (C) 1997-1999  Janos Farkas <chexum@shadow.banki.hu>
+ *
+ * Using parts of the Amiga FFS filesystem
+ * Copyright (C) 1993  Ray Burr
+ * Copyright (C) 1996  Hans-Joachim Widmaier
+ *
+ * and parts of the smbfs filesystem additionally
+ * Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ * Copyright (C) 1997 by Volker Lendecke
+ *
+ *
+ * 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.
+ *
+ *
+ * History:
+ *
+ * v0.3beta (17.06.2003)
+ * - second code clean-up
+ *
+ * v0.2beta2 (15.06.2003)
+ * - fixed yet another stupid bug - driver can't read root block on little-endian systems
+ * v0.2beta (15.06.2003)
+ * - fixed stupid bug - now files have 'file' flag (S_IFREG) set...
+ * - added mount options to set uid, gid and mode of files and dirs
+ * - made hidden files & dirs really hidden (= not listed in directories)
+ * - code clean-up
+ *
+ * v0.1beta (11.06.2003) 
+ * - after many kernel crashes, finally got it! 
+ * - first working read-only filesystem driver
+ *
+ */
+
+/* todo:
+ *      - remove bugs
+ *      - considering write access...
+ *      - speed-up entry lookup (use HashTables...)
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/asfs_fs.h>
+#include <linux/fs.h>
+#include <linux/locks.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+
+#include <asm/byteorder.h>
+#include <asm/uaccess.h>
+
+static struct inode *asfs_iget_from_fsObject(struct super_block *sb, struct fsObject *obj);
+
+static u32 asfs_calcchecksum(struct fsBlockHeader *block, u32 blocksize)
+{
+        u32 *data=(void *)block, checksum = 1, tmpchecksum = block->checksum;
+
+        block->checksum=0;
+        while(blocksize > 0) {
+                checksum+=be32_to_cpu(*data++);
+                blocksize-=4;
+        }
+        block->checksum=tmpchecksum;
+        return(-checksum);
+}
+
+static inline int asfs_check_block(struct fsBlockHeader *block, u32 blocksize, u32 n)
+{
+        if (asfs_calcchecksum((struct fsBlockHeader *)block, blocksize) == be32_to_cpu(((struct fsBlockHeader *)block)->checksum) && n == be32_to_cpu(((struct fsBlockHeader *)block)->ownblock))
+                return 1;
+        return 0;
+}
+
+/* get fs structure from block and do some checks... */
+static int asfs_get_contblock(struct super_block *sb, u32 n, void *dest)
+{
+        struct buffer_head *bh;
+
+        bh = sb_bread(sb, n);
+        if (!bh)
+                return -1;              /* error */
+        memcpy(dest, ((char *)bh->b_data), sb->s_blocksize);
+        brelse(bh);
+
+        if (asfs_check_block(dest, sb->s_blocksize, n)) {
+                from32be(((struct fsBlockHeader *)dest)->ownblock);
+                return 1; /* all okay */
+        }
+        return -1; /* error */
+}
+
+/* get data from block without checks... */
+/*static int asfs_get_datablock (struct super_block *sb, u32 n, void *dest, int len)
+{
+        struct buffer_head *bh;
+        bh = sb_bread(sb, n);
+        if (!bh)
+                return -1;
+        memcpy(dest, ((char *)bh->b_data), len);
+        brelse(bh);
+        return 1;
+}
+*/
+static inline struct inode *asfs_get_root_inode(struct super_block *sb)
+{
+        struct inode *result = NULL;
+        void *block;
+        struct fsObject *obj;
+
+        asfs_debug("asfs_get_root_inode\n");
+
+        block = kmalloc(sb->s_blocksize, GFP_KERNEL);
+        if (asfs_get_contblock(sb, sb->u.asfs_sb.rootobjectcontainer, block) < 0)
+                goto free_and_return;
+
+        obj = &(((struct fsObjectContainer *)block)->object[0]);
+        from32be(obj->objectnode);
+        from32be(obj->object.dir.firstdirblock);
+
+        if (obj->objectnode > 0)
+                result = asfs_iget_from_fsObject(sb, obj);
+
+free_and_return:
+        kfree(block);
+        return result;
+}
+
+static struct super_operations asfs_ops;
+
+static int asfs_parse_options(char *options, struct super_block *sb)
+{
+        char *this_char, *value, *optn;
+        int f;
+
+        /* Fill in defaults */
+        sb->u.asfs_sb.uid = ASFS_DEFAULT_UID;
+        sb->u.asfs_sb.gid = ASFS_DEFAULT_GID;
+        sb->u.asfs_sb.mode = ASFS_DEFAULT_MODE;
+
+        if (!options)
+                return 1;
+        for (this_char = strtok(options,","); this_char; this_char = strtok(NULL,",")) {
+                f = 0;
+                if ((value = strchr(this_char,'=')) != NULL)
+                        *value++ = 0;
+                if ((f = !strcmp(this_char,"setuid")) || !strcmp(this_char,"setgid")) {
+                        if (value) {
+                                if (!*value) {
+                                        printk("ASFS: Argument for set[ug]id option missing\n");
+                                        return 0;
+                                } else {
+                                        (f ? sb->u.asfs_sb.uid : sb->u.asfs_sb.gid) = simple_strtoul(value,&value,0);
+                                        if (*value) {
+                                                printk("ASFS: Bad set[ug]id argument\n");
+                                                return 0;
+                                        }
+                                }
+                        }
+                } else if (!strcmp(this_char,"mode")) {
+                        optn = "mode";
+                        if (!value || !*value)
+                                goto out_no_arg;
+                        sb->u.asfs_sb.mode = simple_strtoul(value,&value,8) & 0777;
+                        if (*value)
+                                return 0;
+                } else {
+                        printk("ASFS: Unrecognized mount option %s\n", this_char);
+                        return 0;
+                }
+        }
+        return 1;
+
+out_no_arg:
+        printk("ASFS: The %s option requires an argument\n", optn);
+        return 0;
+}
+
+static struct super_block *asfs_read_super(struct super_block *sb, void *data, int silent)
+{
+        struct buffer_head *bh;
+        kdev_t dev = sb->s_dev;
+        struct fsRootBlock *rootblock;
+
+        if (!asfs_parse_options(data, sb)) {
+                printk(KERN_ERR "ASFS: Error parsing options\n");
+                return NULL;
+        }
+
+        if (!sb_set_blocksize(sb, 512))
+                return NULL;
+        sb->s_maxbytes = 0xFFFFFFFF;
+
+        bh = sb_bread(sb, 0);
+        if (!bh) {
+                printk(KERN_ERR "ASFS: unable to read superblock\n");
+                goto outnobh;
+        }
+
+        rootblock = (struct fsRootBlock *)bh->b_data;
+
+        if (be32_to_cpu(rootblock->bheader.id) == ASFS_ROOTID && be16_to_cpu(rootblock->version) == ASFS_STRUCTURE_VERISON) {
+                sb->s_blocksize = be32_to_cpu(rootblock->blocksize);
+                sb->u.asfs_sb.totalblocks = be32_to_cpu(rootblock->totalblocks);
+                sb->u.asfs_sb.rootobjectcontainer = be32_to_cpu(rootblock->rootobjectcontainer);
+                sb->u.asfs_sb.extentbnoderoot = be32_to_cpu(rootblock->extentbnoderoot);
+
+                brelse(bh);
+
+                if (!sb_set_blocksize(sb, sb->s_blocksize)) {
+                        printk(KERN_ERR "ASFS: Found Amiga SFS RootBlock on dev %s, but blocksize %ld is not supported!\n", bdevname(dev), sb->s_blocksize);
+                        return NULL;
+                }
+
+                bh = sb_bread(sb, 0);
+                if (!bh) {
+                        printk(KERN_ERR "ASFS: unable to read superblock\n");
+                        goto out;
+                }
+                rootblock = (struct fsRootBlock *)bh->b_data;
+
+                if (asfs_check_block((void *)rootblock, sb->s_blocksize, 0))
+                        printk(KERN_NOTICE "ASFS: Found Amiga SFS RootBlock on dev %s. Checksum okay. Mounting...\n", bdevname(dev));
+                else {
+                        if (!silent)
+                                printk(KERN_ERR "ASFS: Found something like Amiga SFS RootBlock on dev %s, but it has checksum error!\n", bdevname(dev));
+                        goto out;
+                }
+        } else {
+                if (!silent)
+                        printk(KERN_ERR "ASFS: Can't find a valid Amiga SFS filesystem on dev %s.\n", bdevname(dev));
+                goto out;
+        }
+
+        brelse(bh);
+
+        sb->s_magic = ASFS_MAGIC;
+        sb->s_flags |= MS_RDONLY | MS_NODEV | MS_NOSUID;
+        sb->s_op = &asfs_ops;
+        sb->s_root = d_alloc_root(asfs_get_root_inode(sb));
+        if (!sb->s_root)
+                goto outnobh;
+
+        /* Ehrhm; sorry.. :) */
+        if (0) {
+out:
+                brelse(bh);
+outnobh:
+                sb = NULL;
+        }
+        return sb;
+}
+
+/* That's simple too. */
+
+static int asfs_statfs(struct super_block *sb, struct statfs *buf)
+{
+        buf->f_type = ASFS_MAGIC;
+        buf->f_bsize = sb->s_blocksize;
+        buf->f_bfree = buf->f_bavail = buf->f_ffree;
+        buf->f_blocks = sb->u.asfs_sb.totalblocks;
+        buf->f_namelen = ASFS_MAXFN;
+        return 0;
+}
+
+static int asfs_get_fsObject_varlen(struct fsObject *obj)
+{
+        int len, i;
+        u8 *p = obj->name;
+        for (i=2; i > 0; p++)
+                if (*p == '\0')
+                        i--;
+        len = (p - (u8 *)obj);
+        if (len & 1)
+                len++;
+        return len;
+}
+
+static int asfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+        struct inode *diri = filp->f_dentry->d_inode;
+        unsigned long f_pos;
+        int stored = 0;
+        int obj_skip;
+
+        struct fsObjectContainer *objcont;
+        struct fsObject *obj;
+        int i;
+        unsigned long block;
+
+        asfs_debug("asfs_readdir:\n");
+
+        if (filp->f_pos == diri->i_sb->u.asfs_sb.totalblocks)
+                return stored;
+
+        f_pos = filp->f_pos;
+
+        if (f_pos == 0) {
+                filp->private_data = (void *)0;
+                if (filldir(dirent, ".", 1, f_pos, diri->i_ino, DT_DIR) < 0)
+                        return 0;
+                filp->f_pos = f_pos = 1;
+                stored++;
+        }
+        if (f_pos == 1) {
+                if (filldir(dirent, "..", 2, f_pos, filp->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0)
+                        return stored;
+                filp->f_pos = f_pos = 2;
+                stored++;
+        }
+
+        if (diri->u.asfs_i.firstdirblock == 0) {        /* empty directory */
+                filp->f_pos = diri->i_sb->u.asfs_sb.totalblocks;
+                return stored;
+        }
+
+        objcont = kmalloc(diri->i_sb->s_blocksize, GFP_KERNEL);
+
+        if (f_pos == 2) {       /* reading directory from its beginning */
+                block = diri->u.asfs_i.firstdirblock;
+                do {
+                        if (asfs_get_contblock(diri->i_sb, block, (void *)objcont) < 0)
+                                goto free_and_end;
+                        from32be(objcont->previous);
+                        from32be(objcont->next);
+                        block = objcont->previous;
+                } while (objcont->previous != 0);
+                obj_skip = 0;
+        } else {
+                block = f_pos;
+                if (asfs_get_contblock(diri->i_sb, block, (void *)objcont) < 0)
+                        goto free_and_end;
+                from32be(objcont->previous);
+                from32be(objcont->next);
+                obj_skip = (int)filp->private_data;
+        }
+
+        i=0;
+        block = ((struct fsBlockHeader *)objcont)->ownblock;
+
+        do {
+                if (i != 0) {
+                        if (asfs_get_contblock(diri->i_sb, block, (void *)objcont) < 0)
+                                goto free_and_end;
+                        from32be(objcont->previous);
+                        from32be(objcont->next);
+                }
+
+                i = 0;
+                obj = &(objcont->object[0]);
+                from32be(obj->objectnode);
+
+                while (obj->objectnode > 0 && ((char *)obj - (char *)objcont) + sizeof(struct fsObject) < diri->i_sb->s_blocksize) {
+                        if (obj_skip > 0)
+                                obj_skip--;
+                        else if (!(obj->bits & OTYPE_HIDDEN)) {
+                                asfs_debug("ASFS: DirFilling: entry #%d (in_cont: %d) \"%s\" (node %lu offset %lu), type %d\n", stored, i, obj->name, (unsigned long) obj->objectnode, block, obj->bits);
+                                filp->f_pos = block;
+                                if (filldir(dirent, obj->name, strlen(obj->name), block, obj->objectnode, ((obj->bits & OTYPE_DIR) ? DT_DIR : DT_REG)) < 0) {
+                                        filp->private_data = (void *)i;
+                                        asfs_debug("ASFS: DirFilling: to be continued...\n");
+                                        goto free_and_end;
+                                }
+                                stored++;
+                        }
+                        obj = (struct fsObject *)((char *)(obj) + asfs_get_fsObject_varlen(obj));
+                        i++;
+                }
+                block = objcont->next;
+
+        } while (objcont->next != 0);
+
+        filp->f_pos = diri->i_sb->u.asfs_sb.totalblocks;
+
+free_and_end:
+        kfree(objcont);
+        return stored;
+}
+
+static inline u8 upperchar(u8 c)
+{
+        if((c>=224 && c<=254 && c!=247) || (c>='a' && c<='z'))
+                c-=32;
+        return(c);
+}
+
+static int namecmp(u8 *s, u8 *ct)
+{
+        while (upperchar(*s) == upperchar(*ct) && *ct != '\0' && *ct != '/') {
+                s++; ct++;
+        }
+        return (*s == '\0' && (*ct == '\0' || *ct == '/')) ? 0 : *ct - *s;
+}
+
+
+static struct dentry *asfs_lookup(struct inode *dir, struct dentry *dentry)
+{
+        int res;
+        struct inode *inode;
+        unsigned char *name;            /* got from dentry */
+
+        struct fsObjectContainer *objcont;
+        struct fsObject *obj;
+        int i;
+        unsigned long block;
+
+        name = (unsigned char *)dentry->d_name.name;
+        res = -EACCES;                  /* placeholder for "no data here" */
+
+        asfs_debug("asfs_lookup: (searching \"%s\"...) ", name);
+
+        objcont = kmalloc(dir->i_sb->s_blocksize, GFP_KERNEL);
+
+        block = dir->u.asfs_i.firstdirblock;
+
+        do {
+                if (asfs_get_contblock(dir->i_sb, block, (void *)objcont) < 0)
+                        goto free_and_error;
+                from32be(objcont->previous);
+                from32be(objcont->next);
+                block = objcont->previous;
+        } while (objcont->previous != 0);
+
+        i=0;
+        block = ((struct fsBlockHeader *)objcont)->ownblock;
+
+        do {
+                if (i != 0) {
+                        if (asfs_get_contblock(dir->i_sb, block, (void *)objcont) < 0)
+                                goto free_and_error;
+                        from32be(objcont->previous);
+                        from32be(objcont->next);
+                }
+
+                i = 0;
+                obj = &(objcont->object[0]);
+                while (be32_to_cpu(obj->objectnode) > 0 && ((char *)obj - (char *)objcont) + sizeof(struct fsObject) < dir->i_sb->s_blocksize) {
+                        if (namecmp(obj->name, name) == 0) {
+                                from32be(obj->objectnode);
+                                from32be(obj->object.dir.firstdirblock); /* it also corrects file.size and file.firstdatablock */
+                                from32be(obj->object.dir.hashtable);     /* because they are union */
+                                from32be(obj->datemodified);
+                                asfs_debug("Object found! #%d: Node %u, Name %s, Type: %d, inCont %lu\n", i, obj->objectnode, obj->name, obj->bits, block);
+
+                                if ((inode = asfs_iget_from_fsObject(dir->i_sb, obj)))
+                                        goto found_inode;
+
+                                asfs_debug("ASFS: Strange - no inode allocated... :(\n");
+                                goto free_and_error;
+                        }
+                        obj = (struct fsObject *)((char *)(obj) + asfs_get_fsObject_varlen(obj));
+                        i++;
+                }
+                block = objcont->next;
+
+        } while (objcont->next != 0);
+
+        /*
+         * it's a bit funky, _lookup needs to return an error code
+         * (negative) or a NULL, both as a dentry.  ENOENT should not
+         * be returned, instead we need to create a negative dentry by
+         * d_add(dentry, NULL); and return 0 as no error.
+         * (Although as I see, it only matters on writable file
+         * systems).
+         */
+
+        inode = NULL;
+        asfs_debug("ASFS: object not found.\n");
+found_inode:
+        res = 0;
+        d_add(dentry, inode);
+free_and_error:
+        kfree(objcont);
+        return ERR_PTR(res);
+}
+
+static struct fsExtentBNode asfs_search_BNodeTree(struct super_block *sb, u32 key)
+{
+        struct fsBNodeContainer *bnodecont;
+        struct fsExtentBNode result;
+        unsigned long block = sb->u.asfs_sb.extentbnoderoot;
+
+        bnodecont = kmalloc(sb->s_blocksize, GFP_KERNEL);
+        while (asfs_get_contblock(sb, block, bnodecont) > 0) {
+                from16be(bnodecont->btc.nodecount);
+                if (bnodecont->btc.isleaf) {
+                        int i;
+                        struct fsExtentBNode *exbnode;
+                        exbnode = (void *)bnodecont->btc.bnode;
+                        for (i=0; i < bnodecont->btc.nodecount; i++) {
+                                from32be(exbnode->key);
+                                from32be(exbnode->next);
+                                from32be(exbnode->prev);
+                                from16be(exbnode->blocks);
+                                if (exbnode->key == key) {
+                                        result = *exbnode;
+                                        goto found;
+                                }
+                                exbnode = (void *)exbnode + bnodecont->btc.nodesize;
+                        }
+                } else {
+                        int i;
+                        struct BNode *bnode;
+                        bnode = (void *)bnodecont->btc.bnode;
+                        for (i=0; i < bnodecont->btc.nodecount && key >= be32_to_cpu(bnode->key); i++)
+                                bnode = (void *)bnode + bnodecont->btc.nodesize;
+
+                        bnode = (void *)bnode - bnodecont->btc.nodesize;
+                        block = be32_to_cpu(bnode->data);
+                }
+        }
+        /* read error or key not found */
+        result = (struct fsExtentBNode){0, 0, 0, 0};
+found:
+        kfree(bnodecont);
+        return result;
+}
+
+static int
+asfs_get_block(struct inode *inode, long block, struct buffer_head *bh_result, int create)
+{
+        struct fsExtentBNode extend;
+        u32 filedata = inode->u.asfs_i.firstdatablock;
+        unsigned long pos = 0;
+
+        asfs_debug("ASFS: get_block(%lu, %ld)\n", inode->i_ino, block);
+
+        if (block < 0) {
+                printk(KERN_ERR "ASFS: asfsget_block: requested block (%ld) < 0!\n", block);
+                return -EIO;
+        }
+
+        if (block >= inode->i_blocks) {
+                printk(KERN_ERR "ASFS: asfsget_block: strange block request %ld!\n", block);
+                return -EIO;
+        }
+
+        do {
+                extend = asfs_search_BNodeTree(inode->i_sb, filedata);
+                if (extend.key == 0)
+                        goto error;
+                filedata = extend.next;
+                if (pos + extend.blocks > block) {
+                        bh_result->b_blocknr = extend.key + block - pos;
+                        bh_result->b_dev = inode->i_dev;
+                        bh_result->b_state |= (1UL << BH_Mapped);
+                        return 0;
+                }
+                pos += extend.blocks;
+        } while (extend.next != 0 && pos < inode->i_blocks);
+error:
+        return -EIO;
+}
+
+static int asfs_readpage(struct file *file, struct page *page)
+{
+        return block_read_full_page(page, asfs_get_block);
+}
+static int asfs_bmap(struct address_space *mapping, long block)
+{
+        return generic_block_bmap(mapping,block,asfs_get_block);
+}
+
+/* Mapping from our types to the kernel */
+
+static struct address_space_operations asfs_aops = {
+        .readpage       = asfs_readpage,
+        .sync_page      = block_sync_page,
+        .bmap           = asfs_bmap,
+};
+
+struct file_operations asfs_file_operations = {
+        .llseek         = generic_file_llseek,
+        .read           = generic_file_read,
+        .mmap           = generic_file_mmap,
+};
+
+static struct file_operations asfs_dir_operations = {
+        .read           = generic_read_dir,
+        .readdir        = asfs_readdir,
+};
+
+static struct inode_operations asfs_dir_inode_operations = {
+        .lookup         = asfs_lookup,
+};
+
+static struct inode *asfs_iget_from_fsObject(struct super_block *sb, struct fsObject *obj)
+{
+        struct inode *result;
+
+        result = new_inode(sb);
+        if (!result)
+                return result;
+
+        result->i_ino = obj->objectnode;
+        result->i_mode = sb->u.asfs_sb.mode;
+        result->i_mtime = result->i_atime = result->i_ctime = obj->datemodified + (365*8+2)*24*60*60;  /* Linux: seconds since 01-01-1970, AmigaSFS: seconds since 01-01-1978 */
+        result->i_uid = sb->u.asfs_sb.uid;
+        result->i_gid = sb->u.asfs_sb.gid;
+
+        asfs_debug("asfs_iget_from_fsObject: Setting-up node %lu... ", result->i_ino);
+
+        if (obj->bits & OTYPE_DIR) {
+                asfs_debug("dir (FirstdirBlock: %u, HashTable %u)\n", obj->object.dir.firstdirblock, obj->object.dir.hashtable);
+
+                result->i_size = 0;
+                result->i_op = &asfs_dir_inode_operations;
+                result->i_fop = &asfs_dir_operations;
+                result->i_mode |= S_IFDIR | ((result->i_mode & 0400) ? 0100 : 0) | ((result->i_mode & 0040) ? 0010 : 0) | ((result->i_mode & 0004) ? 0001 : 0);
+                result->u.asfs_i.firstdirblock = obj->object.dir.firstdirblock;
+                result->u.asfs_i.hashtable = obj->object.dir.hashtable;
+        } else {
+                asfs_debug("file (Size: %u, FirstBlock: %u)\n", obj->object.file.size, obj->object.file.data);
+
+                result->i_size = obj->object.file.size;
+                result->i_blocks = (obj->object.file.size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
+                result->i_fop = &asfs_file_operations;
+                result->i_mapping->a_ops = &asfs_aops;
+                result->i_mode |= S_IFREG;
+                result->u.asfs_i.firstdatablock = obj->object.file.data;
+        }
+        insert_inode_hash(result);
+        return result;
+}
+
+static struct super_operations asfs_ops = {
+        .statfs         = asfs_statfs,
+};
+
+static DECLARE_FSTYPE_DEV(asfs_fs_type, "asfs", asfs_read_super);
+
+static int __init init_asfs_fs(void)
+{
+        return register_filesystem(&asfs_fs_type);
+}
+
+static void __exit exit_asfs_fs(void)
+{
+        unregister_filesystem(&asfs_fs_type);
+}
+
+/* Yes, works even as a module... :) */
+
+EXPORT_NO_SYMBOLS;
+MODULE_DESCRIPTION("Amiga Smart File System support for Linux");
+
+module_init(init_asfs_fs)
+module_exit(exit_asfs_fs)
+MODULE_LICENSE("GPL");

fs/binfmt_aout.c

@@ -349 +349 @@
                         return error;
                 }
                          
-                flush_icache_range(text_addr, text_addr+ex.a_text+ex.a_data);
+                flush_icache_user_range((void *)text_addr, ex.a_text + ex.a_data);
         } else {
                 static unsigned long error_time, error_time2;
                 if ((ex.a_text & 0xfff || ex.a_data & 0xfff) &&
@@ -373 +373 @@
                         do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
                         bprm->file->f_op->read(bprm->file,(char *)N_TXTADDR(ex),
                                         ex.a_text+ex.a_data, &pos);
-                        flush_icache_range((unsigned long) N_TXTADDR(ex),
-                                           (unsigned long) N_TXTADDR(ex) +
-                                           ex.a_text+ex.a_data);
+                        flush_icache_user_range((void *)N_TXTADDR(ex), ex.a_text + ex.a_data);
                         goto beyond_if;
                 }
 
@@ -471 +469 @@
                 
                 file->f_op->read(file, (char *)start_addr,
                         ex.a_text + ex.a_data, &pos);
-                flush_icache_range((unsigned long) start_addr,
-                                   (unsigned long) start_addr + ex.a_text + ex.a_data);
+                flush_icache_user_range((void *)start_addr, ex.a_text + ex.a_data);
 
                 retval = 0;
                 goto out;

fs/binfmt_elf.c

@@ -403 +403 @@
         retval = interpreter->f_op->read(interpreter, addr, text_data, &offset);
         if (retval < 0)
                 goto out;
-        flush_icache_range((unsigned long)addr,
-                           (unsigned long)addr + text_data);
+        flush_icache_user_range(addr, text_data);
 
         do_brk(ELF_PAGESTART(text_data + ELF_MIN_ALIGN - 1),
                 interp_ex->a_bss);

fs/fat/inode.c

@@ -11 +11 @@
  */
 
 #include <linux/module.h>
+
+#include <linux/config.h>
 #include <linux/msdos_fs.h>
 #include <linux/nls.h>
 #include <linux/kernel.h>
@@ -226 +228 @@
         opts->shortname = 0;
         opts->utf8 = 0;
         opts->iocharset = NULL;
+        opts->atari = 0;
+
+#ifdef CONFIG_ATARI
+        if(MACH_IS_ATARI)
+        /* make Atari GEMDOS format the default if machine is an Atari */
+                opts->atari = 1;
+#endif
         *debug = *fat = 0;
 
         if (!options)
@@ -324 +333 @@
                         if (value) ret = 0;
                         else opts->sys_immutable = 1;
                 }
+                else if (!strcmp(this_char,"atari")) {
+                        if (!value || !strcmp(value,"yes")) opts->atari = 1;
+                        else if (!strcmp(value,"no")) opts->atari = 0;
+                        else ret = 0;
+                }
                 else if (!strcmp(this_char,"codepage") && value) {
                         opts->codepage = simple_strtoul(value,&value,0);
                         if (*value) ret = 0;
@@ -716 +730 @@
 
         error = 0;
         if (!error) {
-                sbi->fat_bits = fat32 ? 32 :
+                if (!opts.atari)
+                        sbi->fat_bits = fat32 ? 32 :
                         (fat ? fat :
                          (sbi->clusters > MSDOS_FAT12 ? 16 : 12));
+                else {
+                        int sectors;
+                        /* Atari GEMDOS partitions always have 16-bit fat */
+                        sbi->fat_bits = fat32 ? 32 : (fat ? fat : 16);
+                        /* If more clusters than fat entries in 16-bit fat, we assume
+                         * it's a real MSDOS partition with 12-bit fat.
+                         */
+                        if (!fat32 && sbi->clusters+2 > sbi->
+                                fat_length*SECTOR_SIZE*8/sbi->fat_bits)
+                                sbi->fat_bits = 12;
+                        /* if it's a floppy disk --> 12bit fat */
+                        if (!fat32 && MAJOR(sb->s_dev) == FLOPPY_MAJOR)
+                                sbi->fat_bits = 12;
+                        /* if it's a ramdisk or loopback device and has one of the usual
+                         * floppy sizes -> 12bit FAT  */
+                        sectors = total_sectors + sbi->data_start;
+                        if (!fat32 && (MAJOR(sb->s_dev) == RAMDISK_MAJOR ||
+                                 MAJOR(sb->s_dev) == LOOP_MAJOR) &&
+                                (sectors == 720 || sectors == 1440 || sectors == 2880))
+                                sbi->fat_bits = 12;
+                }
                 fat_clusters =
                         sbi->fat_length * logical_sector_size * 8 / sbi->fat_bits;
                 error = !sbi->fats || (sbi->dir_entries & (sbi->dir_per_block - 1))
                         || sbi->clusters + 2 > fat_clusters + MSDOS_MAX_EXTRA
                         || logical_sector_size < 512
                         || PAGE_CACHE_SIZE < logical_sector_size
-                        || !b->secs_track || !b->heads;
+                        /* secs_track and heads may be arbitrary on GEMDOS
+                           partitions, it depends on partitioning software
+                           used.  */
+                        || (!opts.atari && (!b->secs_track || !b->heads));
         }
         brelse(bh);
 
@@ -744 +783 @@
                 error = cvf_formats[i]->mount_cvf(sb, cvf_options);
         if (error || debug) {
                 /* The MSDOS_CAN_BMAP is obsolete, but left just to remember */
-                printk("[MS-DOS FS Rel. 12,FAT %d,check=%c,conv=%c,"
+                printk("[MS-DOS FS Rel. 12,FAT %d,check=%c,conv=%c,atari=%c,"
                        "uid=%d,gid=%d,umask=%03o%s]\n",
-                       sbi->fat_bits,opts.name_check,
-                       opts.conversion,opts.fs_uid,opts.fs_gid,opts.fs_umask,
+                       sbi->fat_bits,opts.name_check,opts.conversion,
+                       opts.atari?'y':'n',opts.fs_uid,opts.fs_gid,opts.fs_umask,
                        MSDOS_CAN_BMAP(sbi) ? ",bmap" : "");
                 printk("[me=0x%x,cs=%d,#f=%d,fs=%d,fl=%ld,ds=%ld,de=%d,data=%ld,"
                        "se=%u,ts=%u,ls=%d,rc=%ld,fc=%u]\n",

include/asm-m68k/bootinfo.h

@@ -255 +255 @@
 #define MVME16x_BOOTI_VERSION  MK_BI_VERSION( 2, 0 )
 #define BVME6000_BOOTI_VERSION MK_BI_VERSION( 2, 0 )
 #define Q40_BOOTI_VERSION      MK_BI_VERSION( 2, 0 )
+#define TEKXP_BOOTI_VERSION    MK_BI_VERSION( 2, 0 )
 
 #ifdef BOOTINFO_COMPAT_1_0
 

include/asm-m68k/keyboard.h

@@ -13 +13 @@
 
 #ifdef __KERNEL__
 
+#ifdef CONFIG_TEKXP
+
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <asm/io.h>
+
+#define KEYBOARD_IRQ                    4
+#define DISABLE_KBD_DURING_INTERRUPTS   0
+
+extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode);
+extern int pckbd_getkeycode(unsigned int scancode);
+extern int pckbd_translate(unsigned char scancode, unsigned char *keycode,
+                           char raw_mode);
+extern char pckbd_unexpected_up(unsigned char keycode);
+extern void pckbd_leds(unsigned char leds);
+extern void pckbd_init_hw(void);
+extern unsigned char pckbd_sysrq_xlate[128];
+
+#define kbd_setkeycode          pckbd_setkeycode
+#define kbd_getkeycode          pckbd_getkeycode
+#define kbd_translate           pckbd_translate
+#define kbd_unexpected_up       pckbd_unexpected_up
+#define kbd_leds                pckbd_leds
+#define kbd_init_hw             pckbd_init_hw
+#define kbd_sysrq_xlate         pckbd_sysrq_xlate
+
+#define SYSRQ_KEY 0x54
+
+/* resource allocation */
+#define kbd_request_region()
+#define kbd_request_irq(handler) request_irq(KEYBOARD_IRQ, handler, 0, \
+                                             "keyboard", NULL)
+
+/* How to access the keyboard macros on this platform.  */
+#define kbd_read_input() (*(volatile unsigned char*)0xff900000)
+#define kbd_read_status() (*(volatile unsigned char*)0xff900004)
+#define kbd_write_output(val) do { *(volatile unsigned char*)0xff900000 = (val); } while(0)
+#define kbd_write_command(val) do { *(volatile unsigned char*)0xff900004 = (val); } while(0)
+
+/* Some stoneage hardware needs delays after some operations.  */
+#define kbd_pause() do { } while(0)
+
+/*
+ * Machine specific bits for the PS/2 driver
+ */
+
+#define AUX_IRQ 4
+#define aux_request_irq(hand, dev_id) (0)
+#define aux_free_irq(dev_id)    do { } while (0)
+
+#else   /* !CONFIG_TEKXP */
+
 #include <linux/config.h>
 #include <linux/kd.h>
 #include <asm/machdep.h>
@@ -72 +124 @@
 #define kbd_write_command(val) out_8(KBD_CNTL_REG, val)
 extern unsigned int SYSRQ_KEY;
 
+#endif  /* !CONFIG_TEKXP */
+
 #endif /* __KERNEL__ */
 
 #endif /* __M68K_KEYBOARD_H */

include/asm-m68k/motorola_pgalloc.h

@@ -231 +231 @@
 
 static inline void flush_tlb_mm(struct mm_struct *mm)
 {
-        if (mm == current->mm)
+        if (mm == current->active_mm)
                 __flush_tlb();
 }
 
 static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
 {
-        if (vma->vm_mm == current->mm)
+        if (vma->vm_mm == current->active_mm) {
+                mm_segment_t old_fs = get_fs();
+                set_fs(USER_DS);
                 __flush_tlb_one(addr);
+                set_fs(old_fs);
+        }
 }
 
 static inline void flush_tlb_range(struct mm_struct *mm,
                                    unsigned long start, unsigned long end)
 {
-        if (mm == current->mm)
+        if (mm == current->active_mm)
                 __flush_tlb();
 }
 

include/asm-m68k/pgalloc.h

@@ -126 +126 @@
 
 #define flush_dcache_page(page)                 do { } while (0)
 #define flush_icache_page(vma,pg)              do { } while (0)
-#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
-
-/* Push n pages at kernel virtual address and clear the icache */
-/* RZ: use cpush %bc instead of cpush %dc, cinv %ic */
-extern inline void flush_icache_range (unsigned long address,
-                                       unsigned long endaddr)
-{
-        if (CPU_IS_040_OR_060) {
-                short n = (endaddr - address + PAGE_SIZE - 1) / PAGE_SIZE;
-
-                while (--n >= 0) {
-                        __asm__ __volatile__("nop\n\t"
-                                             ".chip 68040\n\t"
-                                             "cpushp %%bc,(%0)\n\t"
-                                             ".chip 68k"
-                                             : : "a" (virt_to_phys((void *)address)));
-                        address += PAGE_SIZE;
-                }
-        } else {
-                unsigned long tmp;
-                __asm__ __volatile__("movec %%cacr,%0\n\t"
-                                     "orw %1,%0\n\t"
-                                     "movec %0,%%cacr"
-                                     : "=&d" (tmp)
-                                     : "di" (FLUSH_I));
-        }
-}
 
+extern void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
+                                   unsigned long addr, int len);
 
+extern void flush_icache_range(unsigned long address, unsigned long endaddr);
+extern void flush_icache_user_range(void *address, unsigned long size);
 
 
 #ifdef CONFIG_SUN3

include/asm-m68k/setup.h

@@ -41 +41 @@
 #define MACH_HP300    9
 #define MACH_Q40     10
 #define MACH_SUN3X   11
+#define MACH_TEKXP   12
 
 #ifdef __KERNEL__
 
@@ -53 +54 @@
 #elif defined(CONFIG_ATARI) || defined(CONFIG_MAC) || defined(CONFIG_APOLLO) \
         || defined(CONFIG_MVME16x) || defined(CONFIG_BVME6000)               \
         || defined(CONFIG_HP300) || defined(CONFIG_Q40)                      \
-        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)                  \
+        || defined(CONFIG_TEKXP)
 #  define MACH_IS_AMIGA (m68k_machtype == MACH_AMIGA)
 #else
 #  define MACH_AMIGA_ONLY
@@ -66 +68 @@
 #elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_APOLLO) \
         || defined(CONFIG_MVME16x) || defined(CONFIG_BVME6000)               \
         || defined(CONFIG_HP300) || defined(CONFIG_Q40)                      \
-        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)                  \
+        || defined(CONFIG_TEKXP)
 #  define MACH_IS_ATARI (m68k_machtype == MACH_ATARI)
 #else
 #  define MACH_ATARI_ONLY
@@ -79 +82 @@
 #elif defined(CONFIG_AMIGA) || defined(CONFIG_ATARI) || defined(CONFIG_APOLLO) \
         || defined(CONFIG_MVME16x) || defined(CONFIG_BVME6000)                 \
         || defined(CONFIG_HP300) || defined(CONFIG_Q40)                        \
-        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)                    \
+        || defined(CONFIG_TEKXP)
 #  define MACH_IS_MAC (m68k_machtype == MACH_MAC)
 #else
 #  define MACH_MAC_ONLY
@@ -100 +104 @@
 #elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
         || defined(CONFIG_MVME16x) || defined(CONFIG_BVME6000)              \
         || defined(CONFIG_HP300) || defined(CONFIG_Q40)                     \
-        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)                 \
+        || defined(CONFIG_TEKXP)
 #  define MACH_IS_APOLLO (m68k_machtype == MACH_APOLLO)
 #else
 #  define MACH_APOLLO_ONLY
@@ -113 +118 @@
 #elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
         || defined(CONFIG_APOLLO) || defined(CONFIG_BVME6000)               \
         || defined(CONFIG_HP300) || defined(CONFIG_Q40)                     \
-        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME16x)
+        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME16x)                 \
+        || defined(CONFIG_TEKXP)
 #  define MACH_IS_MVME147 (m68k_machtype == MACH_MVME147)
 #else
 #  define MACH_MVME147_ONLY
@@ -126 +132 @@
 #elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
         || defined(CONFIG_APOLLO) || defined(CONFIG_BVME6000)               \
         || defined(CONFIG_HP300) || defined(CONFIG_Q40)                     \
-        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)                 \
+        || defined(CONFIG_TEKXP)
 #  define MACH_IS_MVME16x (m68k_machtype == MACH_MVME16x)
 #else
 #  define MACH_MVME16x_ONLY
@@ -139 +146 @@
 #elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
         || defined(CONFIG_APOLLO) || defined(CONFIG_MVME16x)                \
         || defined(CONFIG_HP300) || defined(CONFIG_Q40)                     \
-        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)                 \
+        || defined(CONFIG_TEKXP)
 #  define MACH_IS_BVME6000 (m68k_machtype == MACH_BVME6000)
 #else
 #  define MACH_BVME6000_ONLY
@@ -152 +160 @@
 #elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
         || defined(CONFIG_APOLLO) || defined(CONFIG_MVME16x) \
         || defined(CONFIG_BVME6000) || defined(CONFIG_Q40) \
-        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147) \
+        || defined(CONFIG_TEKXP)
 #  define MACH_IS_HP300 (m68k_machtype == MACH_HP300)
 #else
 #  define MACH_HP300_ONLY
@@ -165 +174 @@
 #elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
         || defined(CONFIG_APOLLO) || defined(CONFIG_MVME16x)                \
         || defined(CONFIG_BVME6000) || defined(CONFIG_HP300)                \
-        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+        || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)                 \
+        || defined(CONFIG_TEKXP)
 #  define MACH_IS_Q40 (m68k_machtype == MACH_Q40)
 #else
 #  define MACH_Q40_ONLY
@@ -178 +188 @@
 #elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
         || defined(CONFIG_APOLLO) || defined(CONFIG_MVME16x)                \
         || defined(CONFIG_BVME6000) || defined(CONFIG_HP300)                \
-        || defined(CONFIG_Q40) || defined(CONFIG_MVME147)
+        || defined(CONFIG_Q40) || defined(CONFIG_MVME147)                   \
+        || defined(CONFIG_TEKXP)
 #  define MACH_IS_SUN3X (m68k_machtype == MACH_SUN3X)
 #else
 #  define CONFIG_SUN3X_ONLY
@@ -186 +197 @@
 #  define MACH_TYPE (MACH_SUN3X)
 #endif
 
+#if !defined (CONFIG_TEKXP)
+#  define MACH_IS_TEKXP (0)
+#elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
+        || defined(CONFIG_APOLLO) || defined(CONFIG_MVME16x)                \
+        || defined(CONFIG_BVME6000) || defined(CONFIG_HP300)                \
+        || defined(CONFIG_Q40) || defined(CONFIG_MVME147)                   \
+        || defined(CONFIG_SUN3X)
+#  define MACH_IS_TEKXP (m68k_machtype == MACH_TEKXP)
+#else
+#  define CONFIG_TEKXP_ONLY
+#  define MACH_IS_TEKXP (1)
+#  define MACH_TYPE (MACH_TEKXP)
+#endif
+
 #ifndef MACH_TYPE
 #  define MACH_TYPE (m68k_machtype)
 #endif
@@ -355 +380 @@
      *  Miscellaneous
      */
 
-#define NUM_MEMINFO     4
+#define NUM_MEMINFO     8
 #define CL_SIZE         256
 
 #ifndef __ASSEMBLY__

include/asm-m68k/tekirq.h

@@ +1 @@
+/*
+ *  linux/include/asm-m68k/tekirq.h
+ *
+ *  Copyright (C) 2002,2003 Michael Mueller <malware@t-online.de>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * license. See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_TEKIRQ_H_
+#define _ASM_TEKIRQ_H_
+
+#include <asm/irq.h>
+
+#define TEK_IRQ_VIDEO           (IRQ2)
+#define TEK_IRQ_KEYB            (IRQ4)
+#define TEK_IRQ_UART            (IRQ5)
+#define TEK_IRQ_NET             (IRQ6)
+
+#define TEK_IRQ_TIMER_A         (SYS_IRQS + 3)
+#define TEK_IRQ_TXRDY_A         (SYS_IRQS + 0)
+#define TEK_IRQ_RXRDY_A         (SYS_IRQS + 1)
+#define TEK_IRQ_TXRDY_B         (SYS_IRQS + 4)
+#define TEK_IRQ_RXRDY_B         (SYS_IRQS + 5)
+
+#endif  /* !defined(_ASM_TEKIRQ_H_) */

include/asm-m68k/teknvram.h

@@ +1 @@
+/*
+ *  linux/include/asm-m68k/teknvram.h
+ *
+ *  Copyright (C) 2002,2003 Michael Mueller <malware@t-online.de>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#ifndef _ASM_TEKNVRAM_H_
+#define _ASM_TEKNVRAM_H_
+
+#define EEPROM_BASE     0xFFF00000UL
+#define EEPROM_SIZE     0x800
+
+extern void init_nvram(unsigned long* memstart);
+
+extern u_char   nvram_readb(int);
+extern u_short  nvram_readw(int);
+extern u_long   nvram_readl(int);
+
+
+/*
+ * Some known data locations within the NVRAM
+ */
+#define NVRAM_SONIC_MAC         4       /* 6 bytes MAC address for sonic */
+#define NVRAM_DISPLAY           0x1c    /* Display type */
+
+#endif  /* !defined(_ASM_TEKNVRAM_H_) */
+

include/asm-m68k/tekuart.h

@@ +1 @@
+/*
+ *  linux/include/asm-m68k/tekuart.h
+ *
+ *  Copyright (C) 2002,2003 Michael Mueller <malware@t-online.de>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#ifndef ASM_TEKUART
+#define ASM_TEKUART
+
+extern spinlock_t tek_uart_lock;
+
+#define TEK_UART_BASE   (0xFF800000UL)
+
+#define UART_IRQS 8
+
+void tek_uart_init_IRQ(void);
+int tek_uart_request_irq(unsigned int irq,
+                          void (*handler)(int, void *, struct pt_regs *),
+                          unsigned long flags,
+                          const char *devname, void *dev_id);
+void tek_uart_free_irq(unsigned int irq, void *dev_id);
+void tek_uart_enable_irq(unsigned int irq);
+void tek_uart_disable_irq(unsigned int irq);
+int tek_uart_get_irq_list(char *buf);
+
+void tek_uart_setup_timer(void (*handler)(int, void *, struct pt_regs *));
+void tek_uart_putchar(int channel, int c, int waitloop);
+
+void tek_uart_set_op(int nr);
+void tek_uart_clr_op(int nr);
+
+/*
+ * Structures describing the register set of the Motorola 68681 DUART.
+ */
+
+struct tek_uart_rd {
+        unsigned char   MRxA;
+        unsigned short  _pad1;
+        unsigned char   SRA;
+        unsigned short  _pad2;
+        unsigned char   BRG_Test;
+        unsigned short  _pad3;
+        unsigned char   RHRA;
+        unsigned short  _pad4;
+        unsigned char   IPCR;
+        unsigned short  _pad5;
+        unsigned char   ISR;
+        unsigned short  _pad6;
+        unsigned char   CTU;
+        unsigned short  _pad7;
+        unsigned char   CTL;
+        unsigned short  _pad8;
+        unsigned char   MRxB;
+        unsigned short  _pad9;
+        unsigned char   SRB;
+        unsigned short  _pad10;
+        unsigned char   x1x16_Test;
+        unsigned short  _pad11;
+        unsigned char   RHRB;
+        unsigned short  _pad12;
+        unsigned char   res1;
+        unsigned short  _pad13;
+        unsigned char   IP;
+        unsigned short  _pad14;
+        unsigned char   CounterStart;
+        unsigned short  _pad15;
+        unsigned char   CounterStop;
+        unsigned short  _pad16;
+};
+
+struct tek_uart_wr {
+        unsigned char   MRxA;
+        unsigned short  _pad1;
+        unsigned char   CSRA;
+        unsigned short  _pad2;
+        unsigned char   CRA;
+        unsigned short  _pad3;
+        unsigned char   THRA;
+        unsigned short  _pad4;
+        unsigned char   ACR;
+        unsigned short  _pad5;
+        unsigned char   IMR;
+        unsigned short  _pad6;
+        unsigned char   CRUR;
+        unsigned short  _pad7;
+        unsigned char   CTLR;
+        unsigned short  _pad8;
+        unsigned char   MRxB;
+        unsigned short  _pad9;
+        unsigned char   CSRB;
+        unsigned short  _pad10;
+        unsigned char   CRB;
+        unsigned short  _pad11;
+        unsigned char   THRB;
+        unsigned short  _pad12;
+        unsigned char   res1;
+        unsigned short  _pad13;
+        unsigned char   OPCR;
+        unsigned short  _pad14;
+        unsigned char   OutputSet;
+        unsigned short  _pad15;
+        unsigned char   OutputClear;
+        unsigned short  _pad16;
+};
+
+union tek_uart {
+        struct tek_uart_rd rd;
+        struct tek_uart_wr wr;
+};
+
+typedef union tek_uart tek_uart_t;
+
+#endif  /* defined(ASM_TEKUART) */
+

include/linux/adb.h

@@ -76 +76 @@
 #define ADBREQ_REPLY    1       /* expect reply */
 #define ADBREQ_SYNC     2       /* poll until done */
 #define ADBREQ_NOSEND   4       /* build the request, but don't send it */
+#define ADBREQ_RAW      8       /* send raw packet (don't prepend ADB_PACKET) */
 
 /* Messages sent thru the client_list notifier. You should NOT stop
    the operation, at least not with this version */

include/linux/affs_fs.h

@@ -33 +33 @@
 extern u32      affs_count_free_blocks(struct super_block *s);
 extern void     affs_free_block(struct super_block *sb, u32 block);
 extern u32      affs_alloc_block(struct inode *inode, u32 goal);
-extern int      affs_init_bitmap(struct super_block *sb);
+extern int      affs_init_bitmap(struct super_block *sb, int *flags);
+extern void     affs_free_bitmap(struct super_block *sb);
 
 /* namei.c */
 

include/linux/affs_fs_sb.h

@@ -47 +47 @@
 #define SF_OFS          0x0200          /* Old filesystem */
 #define SF_PREFIX       0x0400          /* Buffer for prefix is allocated */
 #define SF_VERBOSE      0x0800          /* Talk about fs when mounting */
-#define SF_READONLY     0x1000          /* Don't allow to remount rw */
 
 /* short cut to get to the affs specific sb data */
 #define AFFS_SB         (&sb->u.affs_sb)

include/linux/asfs_fs.h

@@ +1 @@
+#ifndef __LINUX_ASFS_FS_H
+#define __LINUX_ASFS_FS_H
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+#define asfs_debug(fmt,arg...) pr_debug(fmt,##arg)
+//#define asfs_debug(fmt,arg...) printk(fmt,##arg)
+
+/* some helper macros... */
+
+#define from32be(t) ((t)=be32_to_cpu(t))
+#define from16be(t) ((t)=be16_to_cpu(t))
+
+#define ASFS_MAKE_ID(a,b,c,d) (((a)&0xff)<<24|((b)&0xff)<<16|((c)&0xff)<<8|((d)&0xff))
+
+/* Amiga SFS defines */
+
+#define ASFS_MAGIC 0xa0ff
+#define ASFS_MAXFN 105
+
+#define ASFS_ROOTID ASFS_MAKE_ID('S','F','S',0)
+
+#define ASFS_DEFAULT_UID 0 
+#define ASFS_DEFAULT_GID 0
+#define ASFS_DEFAULT_MODE 0444 /* default permission bits for files, dirs have same permission, but with "x" set */ 
+
+#define ASFS_STRUCTURE_VERISON (3)
+
+#define OTYPE_HIDDEN      (1)
+#define OTYPE_LINK        (64)
+#define OTYPE_DIR         (128)
+
+#define MSB_MASK (1ul << 31)
+
+/* Each block has its own header with checksum and id, its called fsBlockHeader */
+
+struct fsBlockHeader {
+        u32 id;                         /* 4 character id string of this block */
+        u32 checksum;                   /* The checksum */
+        u32 ownblock;                   /* The blocknumber of the block this block is stored at */
+};
+
+/* On-disk "super block", called fsRootBlock */
+
+struct fsRootBlock {
+        struct fsBlockHeader bheader;
+
+        u16 version;                    /* Version number of the filesystem block structure */
+        u16 sequencenumber;             /* The Root with the highest sequencenumber is valid */
+
+        u32 datecreated;                /* Creation date (when first formatted).  Cannot be changed. */
+        u8 bits;                        /* various settings, see defines below. */
+        u8 pad1;
+        u16 pad2;
+
+        u32 reserved1[2];
+
+        u64 firstbyte;                  /* The first byte of our partition from the start of the disk. */
+
+        u64 lastbyte;                   /* The last byte of our partition, excluding this one. */
+
+        u32 totalblocks;                /* size of this partition in blocks */
+        u32 blocksize;                  /* blocksize used */
+
+        u32 reserved2[2];
+        u32 reserved3[8];
+
+        u32 bitmapbase;                 /* location of the bitmap */
+        u32 adminspacecontainer;        /* location of first adminspace container */
+        u32 rootobjectcontainer;        /* location of the root objectcontainer */
+        u32 extentbnoderoot;            /* location of the root of the extentbnode B-tree */
+        u32 objectnoderoot;             /* location of the root of the objectnode tree */
+
+        u32 reserved4[3];
+};
+
+/* On disk inode, called fsObject */
+
+struct fsObject {
+        u16 owneruid;
+        u16 ownergid;
+        u32 objectnode;
+        u32 protection;
+
+        union {
+                struct {
+                        u32 data;
+                        u32 size;
+                } file;
+
+                struct {
+                        u32 hashtable;  /* for directories & root, 0 means no hashblock */
+                        u32 firstdirblock;
+                } dir;
+        } object;
+
+        u32 datemodified;
+        u8 bits;
+
+        u8 name[0];
+        u8 comment[0];
+};
+
+/* On disk block containging a number of fsObjects */
+
+struct fsObjectContainer {
+        struct fsBlockHeader bheader;
+
+        u32 parent;
+        u32 next;
+        u32 previous;                   /* 0 for the first block in the directory chain */
+
+        struct fsObject object[0];
+};
+
+/* BTree structures, used to collect file data position on disk */
+
+struct fsExtentBNode {
+        u32 key;                        /* data! */
+        u32 next;
+        u32 prev;
+        u16 blocks;                     /* The size in blocks of the region this Extent controls */
+};
+
+struct BNode {
+        u32 key;
+        u32 data;
+};
+
+struct BTreeContainer {
+        u16 nodecount;
+        u8 isleaf;
+        u8 nodesize;                    /* Must be a multiple of 2 */
+
+        struct BNode bnode[0];
+};
+
+/* On disk block with BTreeContainer */
+
+struct fsBNodeContainer {
+        struct fsBlockHeader bheader;
+        struct BTreeContainer btc;
+};
+
+#ifdef __KERNEL__
+
+/* Not much now */
+
+#endif /* __KERNEL__ */
+#endif

include/linux/asfs_fs_i.h

@@ +1 @@
+#ifndef __ASFS_FS_I
+#define __ASFS_FS_I
+
+/* inode in-kernel data */
+
+struct asfs_inode_info {
+        u32 firstdirblock;
+        u32 firstdatablock;
+        u32 hashtable;
+};
+
+#endif

include/linux/asfs_fs_sb.h

@@ +1 @@
+#ifndef __ASFS_FS_SB
+#define __ASFS_FS_SB
+
+/* Amiga SFS superblock in-core data */
+
+struct asfs_sb_info {
+        u32 totalblocks;
+        u32 rootobjectcontainer;
+        u32 extentbnoderoot;
+        uid_t uid;
+        gid_t gid;
+        umode_t mode;
+};
+
+#endif

include/linux/bootmem.h

@@ -38 +38 @@
 #define alloc_bootmem(x) \
         __alloc_bootmem((x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
 #define alloc_bootmem_low(x) \
-        __alloc_bootmem((x), SMP_CACHE_BYTES, 0)
+        __alloc_bootmem((x), SMP_CACHE_BYTES, __pa(PAGE_OFFSET))
 #define alloc_bootmem_pages(x) \
         __alloc_bootmem((x), PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
 #define alloc_bootmem_low_pages(x) \
-        __alloc_bootmem((x), PAGE_SIZE, 0)
+        __alloc_bootmem((x), PAGE_SIZE, __pa(PAGE_OFFSET))
 extern unsigned long __init free_all_bootmem (void);
 
 extern unsigned long __init init_bootmem_node (pg_data_t *pgdat, unsigned long freepfn, unsigned long startpfn, unsigned long endpfn);

include/linux/fs.h

@@ -307 +307 @@
 #include <linux/nfs_fs_i.h>
 #include <linux/sysv_fs_i.h>
 #include <linux/affs_fs_i.h>
+#include <linux/asfs_fs_i.h>
 #include <linux/ufs_fs_i.h>
 #include <linux/efs_fs_i.h>
 #include <linux/coda_fs_i.h>
@@ -502 +503 @@
                 struct nfs_inode_info           nfs_i;
                 struct sysv_inode_info          sysv_i;
                 struct affs_inode_info          affs_i;
+                struct asfs_inode_info          asfs_i;
                 struct ufs_inode_info           ufs_i;
                 struct efs_inode_info           efs_i;
                 struct romfs_inode_info         romfs_i;
@@ -719 +721 @@
 #include <linux/nfs_fs_sb.h>
 #include <linux/sysv_fs_sb.h>
 #include <linux/affs_fs_sb.h>
+#include <linux/asfs_fs_sb.h>
 #include <linux/ufs_fs_sb.h>
 #include <linux/efs_fs_sb.h>
 #include <linux/romfs_fs_sb.h>
@@ -777 +780 @@
                 struct nfs_sb_info      nfs_sb;
                 struct sysv_sb_info     sysv_sb;
                 struct affs_sb_info     affs_sb;
+                struct asfs_sb_info     asfs_sb;
                 struct ufs_sb_info      ufs_sb;
                 struct efs_sb_info      efs_sb;
                 struct shmem_sb_info    shmem_sb;

include/linux/module.h

@@ -284 +284 @@
  */
  
 #define MODULE_LICENSE(license)         \
-static const char __module_license[] __attribute__((section(".modinfo"))) =   \
+static const char __module_license[] __attribute_used__ __attribute__((section(".modinfo"))) =   \
 "license=" license
 
 /* Define the module variable, and usage macros.  */
@@ -296 +296 @@
 #define MOD_IN_USE              __MOD_IN_USE(THIS_MODULE)
 
 #include <linux/version.h>
-static const char __module_kernel_version[] __attribute__((section(".modinfo"))) =
+static const char __module_kernel_version[] __attribute_used__ __attribute__((section(".modinfo"))) =
 "kernel_version=" UTS_RELEASE;
 #ifdef MODVERSIONS
-static const char __module_using_checksums[] __attribute__((section(".modinfo"))) =
+static const char __module_using_checksums[] __attribute_used__ __attribute__((section(".modinfo"))) =
 "using_checksums=1";
 #endif
 

include/linux/pc_keyb.h

@@ -14 +14 @@
 #define KBD_REPORT_UNKN                 /* Report unknown scan codes */
 #define KBD_REPORT_TIMEOUTS             /* Report keyboard timeouts */
 #undef KBD_IS_FOCUS_9000                /* We have the brain-damaged FOCUS-9000 keyboard */
+#ifndef CONFIG_TEKXP
 #undef INITIALIZE_MOUSE                 /* Define if your PS/2 mouse needs initialization. */
+#else
+#define INITIALIZE_MOUSE 1
+#endif
 
 
 

kernel/ptrace.c

@@ -165 +165 @@
                 if (write) {
                         memcpy(maddr + offset, buf, bytes);
                         flush_page_to_ram(page);
-                        flush_icache_user_range(vma, page, addr, len);
+                        flush_icache_user_page(vma, page, addr, len);
                         set_page_dirty(page);
                 } else {
                         memcpy(buf, maddr + offset, bytes);

mm/bootmem.c

@@ -244 +244 @@
 
 static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat)
 {
-        struct page *page = pgdat->node_mem_map;
+        struct page *page;
         bootmem_data_t *bdata = pgdat->bdata;
         unsigned long i, count, total = 0;
         unsigned long idx;
@@ -253 +253 @@
 
         count = 0;
         idx = bdata->node_low_pfn - (bdata->node_boot_start >> PAGE_SHIFT);
-        for (i = 0; i < idx; i++, page++) {
+        for (i = 0; i < idx; i++) {
                 if (!test_bit(i, bdata->node_bootmem_map)) {
+                        page = virt_to_page(phys_to_virt((i << PAGE_SHIFT) +
+                                                         bdata->node_boot_start));
                         count++;
                         ClearPageReserved(page);
                         set_page_count(page, 1);

mm/page_alloc.c

@@ -720 +720 @@
  *   - clear the memory bitmaps
  */
 void __init free_area_init_core(int nid, pg_data_t *pgdat, struct page **gmap,
-        unsigned long *zones_size, unsigned long zone_start_paddr, 
+        unsigned long *zones_size, unsigned long zone_start_vaddr, 
         unsigned long *zholes_size, struct page *lmem_map)
 {
         unsigned long i, j;
@@ -728 +728 @@
         unsigned long totalpages, offset, realtotalpages;
         const unsigned long zone_required_alignment = 1UL << (MAX_ORDER-1);
 
-        if (zone_start_paddr & ~PAGE_MASK)
+        if (zone_start_vaddr & ~PAGE_MASK)
                 BUG();
 
         totalpages = 0;
@@ -758 +758 @@
         }
         *gmap = pgdat->node_mem_map = lmem_map;
         pgdat->node_size = totalpages;
-        pgdat->node_start_paddr = zone_start_paddr;
+        pgdat->node_start_paddr = __pa(zone_start_vaddr);
         pgdat->node_start_mapnr = (lmem_map - mem_map);
         pgdat->nr_zones = 0;
 
@@ -835 +835 @@
 
                 zone->zone_mem_map = mem_map + offset;
                 zone->zone_start_mapnr = offset;
-                zone->zone_start_paddr = zone_start_paddr;
+                zone->zone_start_paddr = __pa(zone_start_vaddr);
 
-                if ((zone_start_paddr >> PAGE_SHIFT) & (zone_required_alignment-1))
+                if ((zone_start_vaddr >> PAGE_SHIFT) & (zone_required_alignment-1))
                         printk("BUG: wrong zone alignment, it will crash\n");
 
                 /*
@@ -852 +852 @@
                         SetPageReserved(page);
                         INIT_LIST_HEAD(&page->list);
                         if (j != ZONE_HIGHMEM)
-                                set_page_address(page, __va(zone_start_paddr));
-                        zone_start_paddr += PAGE_SIZE;
+                                set_page_address(page,
+                                                 (void *)zone_start_vaddr);
+                        zone_start_vaddr += PAGE_SIZE;
                 }
 
                 offset += size;
@@ -900 +901 @@
 
 void __init free_area_init(unsigned long *zones_size)
 {
-        free_area_init_core(0, &contig_page_data, &mem_map, zones_size, 0, 0, 0);
+        free_area_init_core(0, &contig_page_data, &mem_map, zones_size, PAGE_OFFSET, 0, 0);
 }
 
 static int __init setup_mem_frac(char *str)