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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /xorg-server/hw/xfree86/int10/xf86int10.c | |
download | vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.gz vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.bz2 vcxsrv-3562e78743202e43aec8727005182a2558117eca.zip |
Checked in the following released items:
xkeyboard-config-1.4.tar.gz
ttf-bitstream-vera-1.10.tar.gz
font-alias-1.0.1.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sony-misc-1.0.0.tar.gz
font-schumacher-misc-1.0.0.tar.gz
font-mutt-misc-1.0.0.tar.gz
font-misc-misc-1.0.0.tar.gz
font-misc-meltho-1.0.0.tar.gz
font-micro-misc-1.0.0.tar.gz
font-jis-misc-1.0.0.tar.gz
font-isas-misc-1.0.0.tar.gz
font-dec-misc-1.0.0.tar.gz
font-daewoo-misc-1.0.0.tar.gz
font-cursor-misc-1.0.0.tar.gz
font-arabic-misc-1.0.0.tar.gz
font-winitzki-cyrillic-1.0.0.tar.gz
font-misc-cyrillic-1.0.0.tar.gz
font-cronyx-cyrillic-1.0.0.tar.gz
font-screen-cyrillic-1.0.1.tar.gz
font-xfree86-type1-1.0.1.tar.gz
font-adobe-utopia-type1-1.0.1.tar.gz
font-ibm-type1-1.0.0.tar.gz
font-bitstream-type1-1.0.0.tar.gz
font-bitstream-speedo-1.0.0.tar.gz
font-bh-ttf-1.0.0.tar.gz
font-bh-type1-1.0.0.tar.gz
font-bitstream-100dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz
font-bh-100dpi-1.0.0.tar.gz
font-adobe-utopia-100dpi-1.0.1.tar.gz
font-adobe-100dpi-1.0.0.tar.gz
font-util-1.0.1.tar.gz
font-bitstream-75dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz
font-adobe-utopia-75dpi-1.0.1.tar.gz
font-bh-75dpi-1.0.0.tar.gz
bdftopcf-1.0.1.tar.gz
font-adobe-75dpi-1.0.0.tar.gz
mkfontscale-1.0.6.tar.gz
openssl-0.9.8k.tar.gz
bigreqsproto-1.0.2.tar.gz
xtrans-1.2.2.tar.gz
resourceproto-1.0.2.tar.gz
inputproto-1.4.4.tar.gz
compositeproto-0.4.tar.gz
damageproto-1.1.0.tar.gz
zlib-1.2.3.tar.gz
xkbcomp-1.0.5.tar.gz
freetype-2.3.9.tar.gz
pthreads-w32-2-8-0-release.tar.gz
pixman-0.12.0.tar.gz
kbproto-1.0.3.tar.gz
evieext-1.0.2.tar.gz
fixesproto-4.0.tar.gz
recordproto-1.13.2.tar.gz
randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
libXau-1.0.4.tar.gz
libxcb-1.1.tar.gz
xorg-server-1.5.3.tar.gz
Diffstat (limited to 'xorg-server/hw/xfree86/int10/xf86int10.c')
-rw-r--r-- | xorg-server/hw/xfree86/int10/xf86int10.c | 851 |
1 files changed, 851 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/int10/xf86int10.c b/xorg-server/hw/xfree86/int10/xf86int10.c new file mode 100644 index 000000000..f50607cfc --- /dev/null +++ b/xorg-server/hw/xfree86/int10/xf86int10.c @@ -0,0 +1,851 @@ +/* + * XFree86 int10 module + * execute BIOS int 10h calls in x86 real mode environment + * Copyright 1999 Egbert Eich + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include "xf86.h" +#include "compiler.h" +#define _INT10_PRIVATE +#include "xf86int10.h" +#include "int10Defines.h" +#include "Pci.h" + +#define REG pInt + +xf86Int10InfoPtr Int10Current = NULL; + +static int int1A_handler(xf86Int10InfoPtr pInt); +#ifndef _PC +static int int42_handler(xf86Int10InfoPtr pInt); +#endif +static int intE6_handler(xf86Int10InfoPtr pInt); +static struct pci_device *findPci(xf86Int10InfoPtr pInt, unsigned short bx); +static CARD32 pciSlotBX( const struct pci_device * pvp ); + +int +int_handler(xf86Int10InfoPtr pInt) +{ + int num = pInt->num; + int ret = 0; + + switch (num) { +#ifndef _PC + case 0x10: + case 0x42: + case 0x6D: + if (getIntVect(pInt, num) == I_S_DEFAULT_INT_VECT) + ret = int42_handler(pInt); + break; +#endif + case 0x1A: + ret = int1A_handler(pInt); + break; + case 0xe6: + ret = intE6_handler(pInt); + break; + default: + break; + } + + if (!ret) + ret = run_bios_int(num, pInt); + + if (!ret) { + xf86DrvMsg(pInt->scrnIndex, X_ERROR, + "Halting on int 0x%2.2x!\n", num); + dump_registers(pInt); + stack_trace(pInt); + } + + return ret; +} + +#ifndef _PC +/* + * This is derived from a number of PC system BIOS'es. The intent here is to + * provide very primitive video support, before an EGA/VGA BIOS installs its + * own interrupt vector. Here, "Ignored" calls should remain so. "Not + * Implemented" denotes functionality that can be implemented should the need + * arise. What are "Not Implemented" throughout are video memory accesses. + * Also, very little input validity checking is done here. + */ +static int +int42_handler(xf86Int10InfoPtr pInt) +{ + switch (X86_AH) { + case 0x00: + /* Set Video Mode */ + /* Enter: AL = video mode number */ + /* Leave: Nothing */ + /* Implemented (except for clearing the screen) */ + { /* Localise */ + IOADDRESS ioport; + int i; + CARD16 int1d, regvals, tmp; + CARD8 mode, cgamode, cgacolour; + + /* + * Ignore all mode numbers but 0x00-0x13. Some systems also ignore + * 0x0B and 0x0C, but don't do that here. + */ + if (X86_AL > 0x13) + break; + + /* + * You didn't think that was really the mode set, did you? There + * are only so many slots in the video parameter table... + */ + mode = X86_AL; + ioport = 0x03D4; + switch (MEM_RB(pInt, 0x0410) & 0x30) { + case 0x30: /* MDA */ + mode = 0x07; /* Force mode to 0x07 */ + ioport = 0x03B4; + break; + case 0x10: /* CGA 40x25 */ + if (mode >= 0x07) + mode = 0x01; + break; + case 0x20: /* CGA 80x25 (MCGA?) */ + if (mode >= 0x07) + mode = 0x03; + break; + case 0x00: /* EGA/VGA */ + if (mode >= 0x07) /* Don't try MDA timings */ + mode = 0x01; /* !?!?! */ + break; + } + + /* Locate data in video parameter table */ + int1d = MEM_RW(pInt, 0x1d << 2); + regvals = ((mode >> 1) << 4) + int1d; + cgacolour = 0x30; + if (mode == 0x06) { + regvals -= 0x10; + cgacolour = 0x3F; + } + + /** Update BIOS Data Area **/ + + /* Video mode */ + MEM_WB(pInt, 0x0449, mode); + + /* Columns */ + tmp = MEM_RB(pInt, mode + int1d + 0x48); + MEM_WW(pInt, 0x044A, tmp); + + /* Page length */ + tmp = MEM_RW(pInt, (mode & 0x06) + int1d + 0x40); + MEM_WW(pInt, 0x044C, tmp); + + /* Start Address */ + MEM_WW(pInt, 0x044E, 0); + + /* Cursor positions, one for each display page */ + for (i = 0x0450; i < 0x0460; i += 2) + MEM_WW(pInt, i, 0); + + /* Cursor start & end scanlines */ + tmp = MEM_RB(pInt, regvals + 0x0B); + MEM_WB(pInt, 0x0460, tmp); + tmp = MEM_RB(pInt, regvals + 0x0A); + MEM_WB(pInt, 0x0461, tmp); + + /* Current display page number */ + MEM_WB(pInt, 0x0462, 0); + + /* CRTC I/O address */ + MEM_WW(pInt, 0x0463, ioport); + + /* CGA Mode register value */ + cgamode = MEM_RB(pInt, mode + int1d + 0x50); + MEM_WB(pInt, 0x0465, cgamode); + + /* CGA Colour register value */ + MEM_WB(pInt, 0x0466, cgacolour); + + /* Rows */ + MEM_WB(pInt, 0x0484, (25 - 1)); + + /* Remap I/O port number into its domain */ + ioport += pInt->ioBase; + + /* Programme the mode */ + outb(ioport + 4, cgamode & 0x37); /* Turn off screen */ + for (i = 0; i < 0x10; i++) { + tmp = MEM_RB(pInt, regvals + i); + outb(ioport, i); + outb(ioport + 1, tmp); + } + outb(ioport + 5, cgacolour); /* Select colour mode */ + outb(ioport + 4, cgamode); /* Turn on screen */ + } + break; + + case 0x01: + /* Set Cursor Type */ + /* Enter: CH = starting line for cursor */ + /* CL = ending line for cursor */ + /* Leave: Nothing */ + /* Implemented */ + { /* Localise */ + IOADDRESS ioport = MEM_RW(pInt, 0x0463) + pInt->ioBase; + + MEM_WB(pInt, 0x0460, X86_CL); + MEM_WB(pInt, 0x0461, X86_CH); + + outb(ioport, 0x0A); + outb(ioport + 1, X86_CH); + outb(ioport, 0x0B); + outb(ioport + 1, X86_CL); + } + break; + + case 0x02: + /* Set Cursor Position */ + /* Enter: BH = display page number */ + /* DH = row */ + /* DL = column */ + /* Leave: Nothing */ + /* Implemented */ + { /* Localise */ + IOADDRESS ioport; + CARD16 offset; + + MEM_WB(pInt, (X86_BH << 1) + 0x0450, X86_DL); + MEM_WB(pInt, (X86_BH << 1) + 0x0451, X86_DH); + + if (X86_BH != MEM_RB(pInt, 0x0462)) + break; + + offset = (X86_DH * MEM_RW(pInt, 0x044A)) + X86_DL; + offset += MEM_RW(pInt, 0x044E) << 1; + + ioport = MEM_RW(pInt, 0x0463) + pInt->ioBase; + outb(ioport, 0x0E); + outb(ioport + 1, offset >> 8); + outb(ioport, 0x0F); + outb(ioport + 1, offset & 0xFF); + } + break; + + case 0x03: + /* Get Cursor Position */ + /* Enter: BH = display page number */ + /* Leave: CH = starting line for cursor */ + /* CL = ending line for cursor */ + /* DH = row */ + /* DL = column */ + /* Implemented */ + { /* Localise */ + X86_CL = MEM_RB(pInt, 0x0460); + X86_CH = MEM_RB(pInt, 0x0461); + X86_DL = MEM_RB(pInt, (X86_BH << 1) + 0x0450); + X86_DH = MEM_RB(pInt, (X86_BH << 1) + 0x0451); + } + break; + + case 0x04: + /* Get Light Pen Position */ + /* Enter: Nothing */ + /* Leave: AH = 0x01 (down/triggered) or 0x00 (not) */ + /* BX = pixel column */ + /* CX = pixel row */ + /* DH = character row */ + /* DL = character column */ + /* Not Implemented */ + { /* Localise */ + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 2, + "int 0x%2.2x(AH=0x04) -- Get Light Pen Position\n", pInt->num); + if (xf86GetVerbosity() > 3) { + dump_registers(pInt); + stack_trace(pInt); + } + X86_AH = X86_BX = X86_CX = X86_DX = 0; + } + break; + + case 0x05: + /* Set Display Page */ + /* Enter: AL = display page number */ + /* Leave: Nothing */ + /* Implemented */ + { /* Localise */ + IOADDRESS ioport = MEM_RW(pInt, 0x0463) + pInt->ioBase; + CARD16 start; + CARD8 x, y; + + /* Calculate new start address */ + MEM_WB(pInt, 0x0462, X86_AL); + start = X86_AL * MEM_RW(pInt, 0x044C); + MEM_WW(pInt, 0x044E, start); + start <<= 1; + + /* Update start address */ + outb(ioport, 0x0C); + outb(ioport + 1, start >> 8); + outb(ioport, 0x0D); + outb(ioport + 1, start & 0xFF); + + /* Switch cursor position */ + y = MEM_RB(pInt, (X86_AL << 1) + 0x0450); + x = MEM_RB(pInt, (X86_AL << 1) + 0x0451); + start += (y * MEM_RW(pInt, 0x044A)) + x; + + /* Update cursor position */ + outb(ioport, 0x0E); + outb(ioport + 1, start >> 8); + outb(ioport, 0x0F); + outb(ioport + 1, start & 0xFF); + } + break; + + case 0x06: + /* Initialise or Scroll Window Up */ + /* Enter: AL = lines to scroll up */ + /* BH = attribute for blank */ + /* CH = upper y of window */ + /* CL = left x of window */ + /* DH = lower y of window */ + /* DL = right x of window */ + /* Leave: Nothing */ + /* Not Implemented */ + { /* Localise */ + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 2, + "int 0x%2.2x(AH=0x06) -- Initialise or Scroll Window Up\n", + pInt->num); + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 3, + " AL=0x%2.2x, BH=0x%2.2x," + " CH=0x%2.2x, CL=0x%2.2x, DH=0x%2.2x, DL=0x%2.2x\n", + X86_AL, X86_BH, X86_CH, X86_CL, X86_DH, X86_DL); + if (xf86GetVerbosity() > 3) { + dump_registers(pInt); + stack_trace(pInt); + } + } + break; + + case 0x07: + /* Initialise or Scroll Window Down */ + /* Enter: AL = lines to scroll down */ + /* BH = attribute for blank */ + /* CH = upper y of window */ + /* CL = left x of window */ + /* DH = lower y of window */ + /* DL = right x of window */ + /* Leave: Nothing */ + /* Not Implemented */ + { /* Localise */ + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 2, + "int 0x%2.2x(AH=0x07) -- Initialise or Scroll Window Down\n", + pInt->num); + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 3, + " AL=0x%2.2x, BH=0x%2.2x," + " CH=0x%2.2x, CL=0x%2.2x, DH=0x%2.2x, DL=0x%2.2x\n", + X86_AL, X86_BH, X86_CH, X86_CL, X86_DH, X86_DL); + if (xf86GetVerbosity() > 3) { + dump_registers(pInt); + stack_trace(pInt); + } + } + break; + + case 0x08: + /* Read Character and Attribute at Cursor */ + /* Enter: BH = display page number */ + /* Leave: AH = attribute */ + /* AL = character */ + /* Not Implemented */ + { /* Localise */ + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 2, + "int 0x%2.2x(AH=0x08) -- Read Character and Attribute at" + " Cursor\n", pInt->num); + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 3, + "BH=0x%2.2x\n", X86_BH); + if (xf86GetVerbosity() > 3) { + dump_registers(pInt); + stack_trace(pInt); + } + X86_AX = 0; + } + break; + + case 0x09: + /* Write Character and Attribute at Cursor */ + /* Enter: AL = character */ + /* BH = display page number */ + /* BL = attribute (text) or colour (graphics) */ + /* CX = replication count */ + /* Leave: Nothing */ + /* Not Implemented */ + { /* Localise */ + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 2, + "int 0x%2.2x(AH=0x09) -- Write Character and Attribute at" + " Cursor\n", pInt->num); + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 3, + "AL=0x%2.2x, BH=0x%2.2x, BL=0x%2.2x, CX=0x%4.4x\n", + X86_AL, X86_BH, X86_BL, X86_CX); + if (xf86GetVerbosity() > 3) { + dump_registers(pInt); + stack_trace(pInt); + } + } + break; + + case 0x0a: + /* Write Character at Cursor */ + /* Enter: AL = character */ + /* BH = display page number */ + /* BL = colour */ + /* CX = replication count */ + /* Leave: Nothing */ + /* Not Implemented */ + { /* Localise */ + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 2, + "int 0x%2.2x(AH=0x0A) -- Write Character at Cursor\n", + pInt->num); + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 3, + "AL=0x%2.2x, BH=0x%2.2x, BL=0x%2.2x, CX=0x%4.4x\n", + X86_AL, X86_BH, X86_BL, X86_CX); + if (xf86GetVerbosity() > 3) { + dump_registers(pInt); + stack_trace(pInt); + } + } + break; + + case 0x0b: + /* Set Palette, Background or Border */ + /* Enter: BH = 0x00 or 0x01 */ + /* BL = colour or palette (respectively) */ + /* Leave: Nothing */ + /* Implemented */ + { /* Localise */ + IOADDRESS ioport = MEM_RW(pInt, 0x0463) + 5 + pInt->ioBase; + CARD8 cgacolour = MEM_RB(pInt, 0x0466); + + if (X86_BH) { + cgacolour &= 0xDF; + cgacolour |= (X86_BL & 0x01) << 5; + } else { + cgacolour &= 0xE0; + cgacolour |= X86_BL & 0x1F; + } + + MEM_WB(pInt, 0x0466, cgacolour); + outb(ioport, cgacolour); + } + break; + + case 0x0c: + /* Write Graphics Pixel */ + /* Enter: AL = pixel value */ + /* BH = display page number */ + /* CX = column */ + /* DX = row */ + /* Leave: Nothing */ + /* Not Implemented */ + { /* Localise */ + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 2, + "int 0x%2.2x(AH=0x0C) -- Write Graphics Pixel\n", pInt->num); + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 3, + "AL=0x%2.2x, BH=0x%2.2x, CX=0x%4.4x, DX=0x%4.4x\n", + X86_AL, X86_BH, X86_CX, X86_DX); + if (xf86GetVerbosity() > 3) { + dump_registers(pInt); + stack_trace(pInt); + } + } + break; + + case 0x0d: + /* Read Graphics Pixel */ + /* Enter: BH = display page number */ + /* CX = column */ + /* DX = row */ + /* Leave: AL = pixel value */ + /* Not Implemented */ + { /* Localise */ + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 2, + "int 0x%2.2x(AH=0x0D) -- Read Graphics Pixel\n", pInt->num); + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 3, + "BH=0x%2.2x, CX=0x%4.4x, DX=0x%4.4x\n", + X86_BH, X86_CX, X86_DX); + if (xf86GetVerbosity() > 3) { + dump_registers(pInt); + stack_trace(pInt); + } + X86_AL = 0; + } + break; + + case 0x0e: + /* Write Character in Teletype Mode */ + /* Enter: AL = character */ + /* BH = display page number */ + /* BL = foreground colour */ + /* Leave: Nothing */ + /* Not Implemented */ + /* WARNING: Emulation of BEL characters will require */ + /* emulation of RTC and PC speaker I/O. */ + /* Also, this recurses through int 0x10 */ + /* which might or might not have been */ + /* installed yet. */ + { /* Localise */ + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 2, + "int 0x%2.2x(AH=0x0E) -- Write Character in Teletype Mode\n", + pInt->num); + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 3, + "AL=0x%2.2x, BH=0x%2.2x, BL=0x%2.2x\n", + X86_AL, X86_BH, X86_BL); + if (xf86GetVerbosity() > 3) { + dump_registers(pInt); + stack_trace(pInt); + } + } + break; + + case 0x0f: + /* Get Video Mode */ + /* Enter: Nothing */ + /* Leave: AH = number of columns */ + /* AL = video mode number */ + /* BH = display page number */ + /* Implemented */ + { /* Localise */ + X86_AH = MEM_RW(pInt, 0x044A); + X86_AL = MEM_RB(pInt, 0x0449); + X86_BH = MEM_RB(pInt, 0x0462); + } + break; + + case 0x10: + /* Colour Control (subfunction in AL) */ + /* Enter: Various */ + /* Leave: Various */ + /* Ignored */ + break; + + case 0x11: + /* Font Control (subfunction in AL) */ + /* Enter: Various */ + /* Leave: Various */ + /* Ignored */ + break; + + case 0x12: + /* Miscellaneous (subfunction in BL) */ + /* Enter: Various */ + /* Leave: Various */ + /* Ignored. Previous code here optionally allowed */ + /* the enabling and disabling of VGA, but no system */ + /* BIOS I've come across actually implements it. */ + break; + + case 0x13: + /* Write String in Teletype Mode */ + /* Enter: AL = write mode */ + /* BL = attribute (if (AL & 0x02) == 0) */ + /* CX = string length */ + /* DH = row */ + /* DL = column */ + /* ES:BP = string segment:offset */ + /* Leave: Nothing */ + /* Not Implemented */ + /* WARNING: Emulation of BEL characters will require */ + /* emulation of RTC and PC speaker I/O. */ + /* Also, this recurses through int 0x10 */ + /* which might or might not have been */ + /* installed yet. */ + { /* Localise */ + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 2, + "int 0x%2.2x(AH=0x13) -- Write String in Teletype Mode\n", + pInt->num); + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 3, + "AL=0x%2.2x, BL=0x%2.2x, CX=0x%4.4x," + " DH=0x%2.2x, DL=0x%2.2x, ES:BP=0x%4.4x:0x%4.4x\n", + X86_AL, X86_BL, X86_CX, X86_DH, X86_DL, X86_ES, X86_BP); + if (xf86GetVerbosity() > 3) { + dump_registers(pInt); + stack_trace(pInt); + } + } + break; + + default: + /* Various extensions */ + /* Enter: Various */ + /* Leave: Various */ + /* Ignored */ + break; + } + + return 1; +} +#endif + +#define SUCCESSFUL 0x00 +#define DEVICE_NOT_FOUND 0x86 +#define BAD_REGISTER_NUMBER 0x87 + +#ifdef SHOW_ALL_DEVICES +/** + * These functions are meant to be used by the PCI BIOS emulation. Some + * BIOSes need to see if there are \b other chips of the same type around so + * by setting \c exclude one PCI device can be explicitely excluded, if + * required. + */ +static struct pci_device * +do_find(const struct pci_id_match *m, char n, const struct pci_device * exclude) +{ + struct pci_device *dev; + struct pci_device_iterator *iter; + + n++; + + iter = pci_id_match_iterator_create(m); + while ((dev = pci_device_next(iter)) != NULL) { + if ((dev != exclude) && !(--n)) { + break; + } + } + + pci_iterator_destroy(iter); + + return dev; +} + + +static struct pci_device * +find_pci_device_vendor(CARD16 vendorID, CARD16 deviceID, + char n, const struct pci_device * exclude) +{ + struct pci_id_match m; + + m.vendor_id = vendorID; + m.device_id = deviceID; + m.subvendor_id = PCI_MATCH_ANY; + m.subdevice_id = PCI_MATCH_ANY; + m.device_class = 0; + m.device_class_mask = 0; + + return do_find(& m, n, exclude); +} + +static struct pci_device * +find_pci_class(CARD8 intf, CARD8 subClass, CARD16 _class, + char n, const struct pci_device * exclude) +{ + struct pci_id_match m; + + m.vendor_id = PCI_MATCH_ANY; + m.device_id = PCI_MATCH_ANY; + m.subvendor_id = PCI_MATCH_ANY; + m.subdevice_id = PCI_MATCH_ANY; + m.device_class = (((uint32_t)_class) << 16) + | (((uint32_t)subClass) << 8) | intf; + m.device_class_mask = 0x00ffffff; + + return do_find(& m, n, exclude); +} +#endif + +static int +int1A_handler(xf86Int10InfoPtr pInt) +{ + struct pci_device * const pvp = xf86GetPciInfoForEntity(pInt->entityIndex); + struct pci_device * dev; + + if (pvp == NULL) + return 0; /* oops */ + +#ifdef PRINT_INT + ErrorF("int 0x1a: ax=0x%x bx=0x%x cx=0x%x dx=0x%x di=0x%x es=0x%x\n", + X86_EAX, X86_EBX, X86_ECX, X86_EDX, X86_EDI, X86_ESI); +#endif + switch (X86_AX) { + case 0xb101: + X86_EAX &= 0xFF00; /* no config space/special cycle support */ + X86_EDX = 0x20494350; /* " ICP" */ + X86_EBX = 0x0210; /* Version 2.10 */ + X86_ECX &= 0xFF00; + X86_ECX |= (pciNumBuses & 0xFF); /* Max bus number in system */ + X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */ +#ifdef PRINT_INT + ErrorF("ax=0x%x dx=0x%x bx=0x%x cx=0x%x flags=0x%x\n", + X86_EAX, X86_EDX, X86_EBX, X86_ECX, X86_EFLAGS); +#endif + return 1; + case 0xb102: + if ( (X86_DX == pvp->vendor_id) + && (X86_CX == pvp->device_id) + && (X86_ESI == 0) ) { + X86_EAX = X86_AL | (SUCCESSFUL << 8); + X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */ + X86_EBX = pciSlotBX(pvp); + } +#ifdef SHOW_ALL_DEVICES + else + if ((dev = find_pci_device_vendor(X86_EDX, X86_ECX, X86_ESI, pvp))) { + X86_EAX = X86_AL | (SUCCESSFUL << 8); + X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */ + X86_EBX = pciSlotBX(dev); + } +#endif + else { + X86_EAX = X86_AL | (DEVICE_NOT_FOUND << 8); + X86_EFLAGS |= ((unsigned long)0x01); /* set carry flag */ + } +#ifdef PRINT_INT + ErrorF("ax=0x%x bx=0x%x flags=0x%x\n", X86_EAX, X86_EBX, X86_EFLAGS); +#endif + return 1; + case 0xb103: + if ( (X86_ECX & 0x00FFFFFF) == pvp->device_class ) { + X86_EAX = X86_AL | (SUCCESSFUL << 8); + X86_EBX = pciSlotBX(pvp); + X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */ + } +#ifdef SHOW_ALL_DEVICES + else if ((dev = find_pci_class(X86_CL, X86_CH, + (X86_ECX & 0xffff0000) >> 16, + X86_ESI, pvp))) { + X86_EAX = X86_AL | (SUCCESSFUL << 8); + X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */ + X86_EBX = pciSlotBX(dev); + } +#endif + else { + X86_EAX = X86_AL | (DEVICE_NOT_FOUND << 8); + X86_EFLAGS |= ((unsigned long)0x01); /* set carry flag */ + } +#ifdef PRINT_INT + ErrorF("ax=0x%x flags=0x%x\n", X86_EAX, X86_EFLAGS); +#endif + return 1; + case 0xb108: + if ((dev = findPci(pInt, X86_EBX)) != NULL) { + pci_device_cfg_read_u8(dev, & X86_CL, X86_DI); + X86_EAX = X86_AL | (SUCCESSFUL << 8); + X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */ + } else { + X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); + X86_EFLAGS |= ((unsigned long)0x01); /* set carry flag */ + } +#ifdef PRINT_INT + ErrorF("ax=0x%x cx=0x%x flags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS); +#endif + return 1; + case 0xb109: + if ((dev = findPci(pInt, X86_EBX)) != NULL) { + pci_device_cfg_read_u16(dev, & X86_CX, X86_DI); + X86_EAX = X86_AL | (SUCCESSFUL << 8); + X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */ + } else { + X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); + X86_EFLAGS |= ((unsigned long)0x01); /* set carry flag */ + } +#ifdef PRINT_INT + ErrorF("ax=0x%x cx=0x%x flags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS); +#endif + return 1; + case 0xb10a: + if ((dev = findPci(pInt, X86_EBX)) != NULL) { + pci_device_cfg_read_u32(dev, & X86_ECX, X86_DI); + X86_EAX = X86_AL | (SUCCESSFUL << 8); + X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */ + } else { + X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); + X86_EFLAGS |= ((unsigned long)0x01); /* set carry flag */ + } +#ifdef PRINT_INT + ErrorF("ax=0x%x cx=0x%x flags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS); +#endif + return 1; + case 0xb10b: + if ((dev = findPci(pInt, X86_EBX)) != NULL) { + pci_device_cfg_write_u8(dev, X86_CL, X86_DI); + X86_EAX = X86_AL | (SUCCESSFUL << 8); + X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */ + } else { + X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); + X86_EFLAGS |= ((unsigned long)0x01); /* set carry flag */ + } +#ifdef PRINT_INT + ErrorF("ax=0x%x flags=0x%x\n", X86_EAX, X86_EFLAGS); +#endif + return 1; + case 0xb10c: + if ((dev = findPci(pInt, X86_EBX)) != NULL) { + pci_device_cfg_write_u16(dev, X86_CX, X86_DI); + X86_EAX = X86_AL | (SUCCESSFUL << 8); + X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */ + } else { + X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); + X86_EFLAGS |= ((unsigned long)0x01); /* set carry flag */ + } +#ifdef PRINT_INT + ErrorF("ax=0x%x flags=0x%x\n", X86_EAX, X86_EFLAGS); +#endif + return 1; + case 0xb10d: + if ((dev = findPci(pInt, X86_EBX)) != NULL) { + pci_device_cfg_write_u32(dev, X86_ECX, X86_DI); + X86_EAX = X86_AL | (SUCCESSFUL << 8); + X86_EFLAGS &= ~((unsigned long)0x01); /* clear carry flag */ + } else { + X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); + X86_EFLAGS |= ((unsigned long)0x01); /* set carry flag */ + } +#ifdef PRINT_INT + ErrorF("ax=0x%x flags=0x%x\n", X86_EAX, X86_EFLAGS); +#endif + return 1; + default: + xf86DrvMsgVerb(pInt->scrnIndex, X_NOT_IMPLEMENTED, 2, + "int 0x1a subfunction\n"); + dump_registers(pInt); + if (xf86GetVerbosity() > 3) + stack_trace(pInt); + return 0; + } +} + +static struct pci_device * +findPci(xf86Int10InfoPtr pInt, unsigned short bx) +{ + const unsigned bus = (bx >> 8) & 0x00FF; + const unsigned dev = (bx >> 3) & 0x001F; + const unsigned func = (bx ) & 0x0007; + + return pci_device_find_by_slot(pInt->dev->domain, bus, dev, func); +} + +static CARD32 +pciSlotBX(const struct pci_device * pvp) +{ + return ((pvp->bus << 8) & 0x00FF00) | (pvp->dev << 3) | (pvp->func); +} + +/* + * handle initialization + */ +static int +intE6_handler(xf86Int10InfoPtr pInt) +{ + struct pci_device * pvp; + + if ((pvp = xf86GetPciInfoForEntity(pInt->entityIndex))) + X86_AX = (pvp->bus << 8) | (pvp->dev << 3) | (pvp->func & 0x7); + pushw(pInt, X86_CS); + pushw(pInt, X86_IP); + X86_CS = pInt->BIOSseg; + X86_EIP = 0x0003; + X86_ES = 0; /* standard pc es */ + return 1; +} |