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authorPeter Tyser <ptyser@xes-inc.com>2010-04-12 22:28:04 -0500
committerWolfgang Denk <wd@denx.de>2010-04-13 09:13:03 +0200
commitea0364f1bbfed1e3ea711147420875cf338fe77a (patch)
tree15c051bc4d2e94c1661c73e1b87c22c7beda7c24 /lib_i386/bios.S
parent89f39e177e7b0152aa1d3152baa25d986e36cdcf (diff)
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Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk This change is intended to clean up the top-level directory structure and more closely mimic Linux's directory organization. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'lib_i386/bios.S')
-rw-r--r--lib_i386/bios.S532
1 files changed, 0 insertions, 532 deletions
diff --git a/lib_i386/bios.S b/lib_i386/bios.S
deleted file mode 100644
index 48f1b81..0000000
--- a/lib_i386/bios.S
+++ /dev/null
@@ -1,532 +0,0 @@
-/*
- * (C) Copyright 2002
- * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/*
- * Based on msbios.c from rolo 1.6:
- *----------------------------------------------------------------------
- * (C) Copyright 2000
- * Sysgo Real-Time Solutions GmbH
- * Klein-Winternheim, Germany
- *----------------------------------------------------------------------
- */
-
-#include "bios.h"
-
-/*
- * During it's initialization phase, before switching to protected
- * mode, the Linux Kernel makes a few BIOS calls. This won't work
- * if the board does not have a BIOS.
- *
- * This is a very minimalisic BIOS that supplies just enough
- * functionality to keep the Linux Kernel happy. It is NOT
- * a general purpose replacement for a real BIOS !!
- */
-
-
-.section .bios, "ax"
-.code16
-.org 0
- /* a call to f000:0 should warmboot */
- jmp realmode_reset
-
-.globl rm_int00
-.hidden rm_int00
-.type rm_int00, @function
-rm_int00:
- pushw $0
- jmp any_interrupt16
-.globl rm_int01
-.hidden rm_int01
-.type rm_int01, @function
-rm_int01:
- pushw $1
- jmp any_interrupt16
-.globl rm_int02
-.hidden rm_int02
-.type rm_int02, @function
-rm_int02:
- pushw $2
- jmp any_interrupt16
-.globl rm_int03
-.hidden rm_int03
-.type rm_int03, @function
-rm_int03:
- pushw $3
- jmp any_interrupt16
-.globl rm_int04
-.hidden rm_int04
-.type rm_int04, @function
-rm_int04:
- pushw $4
- jmp any_interrupt16
-.globl rm_int05
-.hidden rm_int05
-.type rm_int05, @function
-rm_int05:
- pushw $5
- jmp any_interrupt16
-.globl rm_int06
-.hidden rm_int06
-.type rm_int06, @function
-rm_int06:
- pushw $6
- jmp any_interrupt16
-.globl rm_int07
-.hidden rm_int07
-.type rm_int07, @function
-rm_int07:
- pushw $7
- jmp any_interrupt16
-.globl rm_int08
-.hidden rm_int08
-.type rm_int08, @function
-rm_int08:
- pushw $8
- jmp any_interrupt16
-.globl rm_int09
-.hidden rm_int09
-.type rm_int09, @function
-rm_int09:
- pushw $9
- jmp any_interrupt16
-.globl rm_int0a
-.hidden rm_int0a
-.type rm_int0a, @function
-rm_int0a:
- pushw $10
- jmp any_interrupt16
-.globl rm_int0b
-.hidden rm_int0b
-.type rm_int0b, @function
-rm_int0b:
- pushw $11
- jmp any_interrupt16
-.globl rm_int0c
-.hidden rm_int0c
-.type rm_int0c, @function
-rm_int0c:
- pushw $12
- jmp any_interrupt16
-.globl rm_int0d
-.hidden rm_int0d
-.type rm_int0d, @function
-rm_int0d:
- pushw $13
- jmp any_interrupt16
-.globl rm_int0e
-.hidden rm_int0e
-.type rm_int0e, @function
-rm_int0e:
- pushw $14
- jmp any_interrupt16
-.globl rm_int0f
-.hidden rm_int0f
-.type rm_int0f, @function
-rm_int0f:
- pushw $15
- jmp any_interrupt16
-.globl rm_int10
-.hidden rm_int10
-.type rm_int10, @function
-rm_int10:
- pushw $16
- jmp any_interrupt16
-.globl rm_int11
-.hidden rm_int11
-.type rm_int11, @function
-rm_int11:
- pushw $17
- jmp any_interrupt16
-.globl rm_int12
-.hidden rm_int12
-.type rm_int12, @function
-rm_int12:
- pushw $18
- jmp any_interrupt16
-.globl rm_int13
-.hidden rm_int13
-.type rm_int13, @function
-rm_int13:
- pushw $19
- jmp any_interrupt16
-.globl rm_int14
-.hidden rm_int14
-.type rm_int14, @function
-rm_int14:
- pushw $20
- jmp any_interrupt16
-.globl rm_int15
-.hidden rm_int15
-.type rm_int15, @function
-rm_int15:
- pushw $21
- jmp any_interrupt16
-.globl rm_int16
-.hidden rm_int16
-.type rm_int16, @function
-rm_int16:
- pushw $22
- jmp any_interrupt16
-.globl rm_int17
-.hidden rm_int17
-.type rm_int17, @function
-rm_int17:
- pushw $23
- jmp any_interrupt16
-.globl rm_int18
-.hidden rm_int18
-.type rm_int18, @function
-rm_int18:
- pushw $24
- jmp any_interrupt16
-.globl rm_int19
-.hidden rm_int19
-.type rm_int19, @function
-rm_int19:
- pushw $25
- jmp any_interrupt16
-.globl rm_int1a
-.hidden rm_int1a
-.type rm_int1a, @function
-rm_int1a:
- pushw $26
- jmp any_interrupt16
-.globl rm_int1b
-.hidden rm_int1b
-.type rm_int1b, @function
-rm_int1b:
- pushw $27
- jmp any_interrupt16
-.globl rm_int1c
-.hidden rm_int1c
-.type rm_int1c, @function
-rm_int1c:
- pushw $28
- jmp any_interrupt16
-.globl rm_int1d
-.hidden rm_int1d
-.type rm_int1d, @function
-rm_int1d:
- pushw $29
- jmp any_interrupt16
-.globl rm_int1e
-.hidden rm_int1e
-.type rm_int1e, @function
-rm_int1e:
- pushw $30
- jmp any_interrupt16
-.globl rm_int1f
-.hidden rm_int1f
-.type rm_int1f, @function
-rm_int1f:
- pushw $31
- jmp any_interrupt16
-.globl rm_def_int
-.hidden rm_def_int
-.type rm_def_int, @function
-rm_def_int:
- iret
-
-
- /*
- * All interrupt jumptable entries jump to here
- * after pushing the interrupt vector number onto the
- * stack.
- */
-any_interrupt16:
- MAKE_BIOS_STACK
-
-gs movw OFFS_VECTOR(%bp), %ax
- cmpw $0x10, %ax
- je Lint_10h
- cmpw $0x11, %ax
- je Lint_11h
- cmpw $0x12, %ax
- je Lint_12h
- cmpw $0x13, %ax
- je Lint_13h
- cmpw $0x15, %ax
- je Lint_15h
- cmpw $0x16, %ax
- je Lint_16h
- cmpw $0x1a, %ax
- je Lint_1ah
- movw $0xffff, %ax
- jmp Lout
-Lint_10h: /* VGA BIOS services */
- call bios_10h
- jmp Lout
-Lint_11h:
- call bios_11h
- jmp Lout
-Lint_12h:
- call bios_12h
- jmp Lout
-Lint_13h: /* BIOS disk services */
- call bios_13h
- jmp Lout
-Lint_15h: /* Misc. BIOS services */
- call bios_15h
- jmp Lout
-Lint_16h: /* keyboard services */
- call bios_16h
- jmp Lout
-Lint_1ah: /* PCI bios */
- call bios_1ah
- jmp Lout
-Lout:
- cmpw $0, %ax
- je Lhandeled
-
- /* Insert code for unhandeled INTs here.
- *
- * ROLO prints a message to the console
- * (we could do that but then we're in 16bit mode
- * so we'll have to get back into 32bit mode
- * to use the console I/O routines (if we do this
- * we shuls make int 0x10 and int 0x16 work as well))
- */
-Lhandeled:
- RESTORE_CALLERS_STACK
- addw $2,%sp /* dump vector number */
- iret /* return from interrupt */
-
-
-/*
- ************************************************************
- * BIOS interrupt 10h -- VGA services
- ************************************************************
- */
-bios_10h:
-gs movw OFFS_AX(%bp), %ax
- shrw $8, %ax
- cmpw $0x3, %ax
- je Lcur_pos
- cmpw $0xf, %ax
- je Lvid_state
- cmpw $0x12, %ax
- je Lvid_cfg
- movw $0xffff, %ax
- ret
-Lcur_pos: /* Read Cursor Position and Size */
-gs movw $0, OFFS_CX(%bp)
-gs movw $0, OFFS_DX(%bp)
- xorw %ax, %ax
- ret
-Lvid_state: /* Get Video State */
-gs movw $(80 << 8|0x03), OFFS_AX(%bp) /* 80 columns, 80x25, 16 colors */
-gs movw $0, OFFS_BX(%bp)
- xorw %ax, %ax
- ret
-Lvid_cfg: /* Video Subsystem Configuration (EGA/VGA) */
-gs movw $0x10, OFFS_BX(%bp) /* indicate CGA/MDA/HGA */
- xorw %ax, %ax
- ret
-
-
-/*
- ************************************************************
- * BIOS interrupt 11h -- Equipment determination
- ************************************************************
- */
-
-bios_11h:
-cs movw bios_equipment, %ax
-gs movw %ax, OFFS_AX(%bp)
- xorw %ax, %ax
- ret
-
-
-/*
- ************************************************************
- * BIOS interrupt 12h -- Get Memory Size
- ************************************************************
- */
-bios_12h:
-cs movw ram_in_64kb_chunks, %ax
- cmpw $0xa, %ax
- ja b12_more_than_640k
- shlw $6, %ax
- jmp b12_return
-b12_more_than_640k:
- movw $0x280, %ax
-b12_return:
-gs movw %ax, OFFS_AX(%bp) /* return number of kilobytes in ax */
-
-gs movw OFFS_FLAGS(%bp), %ax
- andw $0xfffe, %ax /* clear carry -- function succeeded */
-gs movw %ax, OFFS_FLAGS(%bp)
-
- xorw %ax, %ax
- ret
-
-
-/*
- ************************************************************
- * BIOS interrupt 13h -- Disk services
- ************************************************************
- */
-bios_13h:
-gs movw OFFS_AX(%bp), %ax
- shrw $8, %ax
- cmpw $0x15, %ax
- je Lfunc_15h
- movw $0xffff, %ax
- ret
-Lfunc_15h:
-gs movw OFFS_AX(%bp), %ax
- andw $0xff, %ax /* return AH=0->drive not present */
-gs movw %ax, OFFS_AX(%bp)
- xorw %ax, %ax
- ret
-
-
-/*
- ***********************************************************
- * BIOS interrupt 15h -- Miscellaneous services
- ***********************************************************
- */
-bios_15h:
-gs movw OFFS_AX(%bp), %ax
- shrw $8, %ax
- cmpw $0xc0, %ax
- je Lfunc_c0h
- cmpw $0xe8, %ax
- je Lfunc_e8h
- cmpw $0x88, %ax
- je Lfunc_88h
- movw $0xffff, %ax
- ret
-
-Lfunc_c0h: /* Return System Configuration Parameters (PS2 only) */
-gs movw OFFS_FLAGS(%bp), %ax
- orw $1, %ax /* return carry -- function not supported */
-gs movw %ax, OFFS_FLAGS(%bp)
- xorw %ax, %ax
- ret
-
-Lfunc_e8h:
-gs movw OFFS_AX(%bp), %ax
- andw $0xff, %ax
- cmpw $1, %ax
- je Lfunc_e801h
-gs movw OFFS_FLAGS(%bp), %ax
- orw $1, %ax /* return carry -- function not supported */
-gs movw %ax, OFFS_FLAGS(%bp)
- xorw %ax, %ax
- ret
-
-Lfunc_e801h: /* Get memory size for >64M Configurations */
-cs movw ram_in_64kb_chunks, %ax
- cmpw $0x100, %ax
- ja e801_more_than_16mb
- shlw $6, %ax /* multiply by 64 */
- subw $0x400, %ax /* 1st meg does not count */
-
-gs movw %ax, OFFS_AX(%bp) /* return memory size between 1M and 16M in 1kb chunks in AX and CX */
-gs movw %ax, OFFS_CX(%bp)
-gs movw $0, OFFS_BX(%bp) /* set BX and DX to 0*/
-gs movw $0, OFFS_DX(%bp)
-gs movw OFFS_FLAGS(%bp), %ax
- andw $0xfffe, %ax /* clear carry -- function succeeded */
-gs movw %ax, OFFS_FLAGS(%bp)
- xorw %ax, %ax
- ret
-
-e801_more_than_16mb:
- subw $0x100, %ax /* subtract 16MB */
-
-gs movw $0x3c00, OFFS_AX(%bp) /* return 0x3c00 (16MB-1MB) in AX and CX */
-gs movw $0x3c00, OFFS_CX(%bp)
-gs movw %ax, OFFS_BX(%bp) /* set BX and DX to number of 64kb chunks above 16MB */
-gs movw %ax, OFFS_DX(%bp)
-
-gs movw OFFS_FLAGS(%bp), %ax
- andw $0xfffe, %ax /* clear carry -- function succeeded */
-gs movw %ax, OFFS_FLAGS(%bp)
- xorw %ax, %ax
- ret
-
-Lfunc_88h:
-cs movw ram_in_64kb_chunks, %ax
- cmpw $0x100, %ax
- jna b88_not_more_than16
- movw $0x100, %ax
-b88_not_more_than16:
- shlw $6, %ax
- subw $0x400, %ax /* 1st meg does not count */
-
-gs movw %ax, OFFS_AX(%bp) /* return number of kilobytes between 16MB and 16MB in ax */
-
-gs movw OFFS_FLAGS(%bp), %ax
- andw $0xfffe, %ax /* clear carry -- function succeeded */
-gs movw %ax, OFFS_FLAGS(%bp)
-
- xorw %ax, %ax
- ret
-
-
-/*
- ************************************************************
- * BIOS interrupt 16h -- keyboard services
- ************************************************************
- */
-bios_16h:
-gs movw OFFS_AX(%bp), %ax
- shrw $8, %ax
- cmpw $0x03, %ax
- je Lfunc_03h
- movw $0xffff, %ax
- ret
-Lfunc_03h:
- xorw %ax, %ax /* do nothing -- function not supported */
- ret
-
-/*
- ************************************************************
- * BIOS interrupt 1ah -- PCI bios
- ************************************************************
- */
-bios_1ah:
-gs movw OFFS_AX(%bp), %ax
- cmpb $0xb1, %ah
- je Lfunc_b1h
- movw $0xffff, %ax
- ret
-Lfunc_b1h:
- call realmode_pci_bios
- xorw %ax, %ax /* do nothing -- function not supported */
- ret
-
-
-.globl ram_in_64kb_chunks
-.hidden ram_in_64kb_chunks
-.type ram_in_64kb_chunks, @function
-ram_in_64kb_chunks:
- .word 0
-
-.globl bios_equipment
-.hidden bios_equipment
-.type bios_equipment, @function
-bios_equipment:
- .word 0