summaryrefslogtreecommitdiff
path: root/hw/kdrive/vesa/vbe.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/kdrive/vesa/vbe.c')
-rw-r--r--hw/kdrive/vesa/vbe.c707
1 files changed, 0 insertions, 707 deletions
diff --git a/hw/kdrive/vesa/vbe.c b/hw/kdrive/vesa/vbe.c
deleted file mode 100644
index 7fc891a09..000000000
--- a/hw/kdrive/vesa/vbe.c
+++ /dev/null
@@ -1,707 +0,0 @@
-/*
-Copyright (c) 2000 by Juliusz Chroboczek
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-/* $RCSId: xc/programs/Xserver/hw/kdrive/vesa/vbe.c,v 1.9 2001/05/29 04:54:12 keithp Exp $ */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "vesa.h"
-
-int
-VbeGetVib (Vm86InfoPtr vi, VbeInfoBlock *vib)
-{
- int code;
- int mark;
- int vib_base;
- VbeInfoBlock *vib_low;
-
- mark = Vm86MarkMemory (vi);
- vib_base = Vm86AllocateMemory (vi, sizeof (VbeInfoBlock));
- vib_low = (VbeInfoBlock*)&(LM(vi, vib_base));
- vi->vms.regs.eax = 0x4F00;
- vi->vms.regs.es = POINTER_SEGMENT(vib_base);
- vi->vms.regs.edi = POINTER_OFFSET(vib_base);
- memcpy(vib_low->VbeSignature, "VBE2", 4);
- code = VbeDoInterrupt10(vi);
- if(code >= 0)
- {
- if(memcmp(vib_low->VbeSignature, "VESA", 4) == 0)
- *vib = *vib_low;
- else
- code = -1;
- }
- Vm86ReleaseMemory (vi, mark);
- return code;
-}
-
-int
-VbeGetVmib (Vm86InfoPtr vi, int mode, VbeModeInfoBlock *vmib)
-{
- int code;
- int mark;
- int vmib_base;
- VbeModeInfoBlock *vmib_low;
-
- mark = Vm86MarkMemory (vi);
-
- vmib_base = Vm86AllocateMemory (vi, sizeof (VbeModeInfoBlock));
- vmib_low = (VbeModeInfoBlock*)&(LM(vi, vmib_base));
-
- vi->vms.regs.eax = 0x4F01;
- vi->vms.regs.ecx = mode&0xFFFF;
- vi->vms.regs.es = POINTER_SEGMENT(vmib_base);
- vi->vms.regs.edi = POINTER_OFFSET(vmib_base);
- code = VbeDoInterrupt10(vi);
-
- if(code >= 0)
- *vmib = *vmib_low;
- Vm86ReleaseMemory (vi, mark);
- return code;
-}
-
-static int
-VbeReportVib(Vm86InfoPtr vi, VbeInfoBlock *vib)
-{
- U32 i, p;
- unsigned char c;
- int error = 0;
-
- ErrorF("VBE version %c.%c (",
- ((vib->VbeVersion >> 8) & 0xFF) + '0',
- (vib->VbeVersion & 0xFF)+'0');
- p = vib->OemStringPtr;
- for(i = 0; 1; i++) {
- c = Vm86Memory(vi, MAKE_POINTER_1(p+i));
- if(!c) break;
- if (c >= ' ')
- ErrorF("%c", c);
- if (i > 32000) {
- error = 1;
- break;
- }
- }
- ErrorF(")\n");
- ErrorF("DAC is %s, controller is %sVGA compatible%s\n",
- (vib->Capabilities[0]&1)?"fixed":"switchable",
- (vib->Capabilities[0]&2)?"not ":"",
- (vib->Capabilities[0]&3)?", RAMDAC causes snow":"");
- ErrorF("Total memory: %lu kilobytes\n", 64L*vib->TotalMemory);
- if(error)
- return -1;
- return 0;
-}
-
-#if 0
-static int
-VbeReportModeInfo(Vm86InfoPtr vi, U16 mode, VbeModeInfoBlock *vmib)
-{
- int supported = (vmib->ModeAttributes&0x1)?1:0;
- int colour = (vmib->ModeAttributes&0x8)?1:0;
- int graphics = (vmib->ModeAttributes&0x10)?1:0;
- int vga_compatible = !((vmib->ModeAttributes&0x20)?1:0);
- int linear_fb = (vmib->ModeAttributes&0x80)?1:0;
-
- ErrorF("0x%04X: %dx%dx%d%s",
- (unsigned)mode,
- (int)vmib->XResolution, (int)vmib->YResolution,
- (int)vmib->BitsPerPixel,
- colour?"":" (monochrome)",
- graphics?"":" (graphics)",
- vga_compatible?"":" (vga compatible)",
- linear_fb?"":" (linear frame buffer)");
- switch(vmib->MemoryModel) {
- case 0:
- ErrorF(" text mode (%dx%d)",
- (int)vmib->XCharSize, (int)vmib->YCharSize);
- break;
- case 1:
- ErrorF(" CGA graphics");
- break;
- case 2:
- ErrorF(" Hercules graphics");
- break;
- case 3:
- ErrorF(" Planar (%d planes)", vmib->NumberOfPlanes);
- break;
- case 4:
- ErrorF(" PseudoColor");
- break;
- case 5:
- ErrorF(" Non-chain 4, 256 colour");
- break;
- case 6:
- if(vmib->DirectColorModeInfo & 1)
- ErrorF(" DirectColor");
- else
- ErrorF(" TrueColor");
- ErrorF(" [%d:%d:%d:%d]",
- vmib->RedMaskSize, vmib->GreenMaskSize, vmib->BlueMaskSize,
- vmib->RsvdMaskSize);
- if(vmib->DirectColorModeInfo & 2)
- ErrorF(" (reserved bits are reserved)");
- break;
- case 7: ErrorF("YUV");
- break;
- default:
- ErrorF("unknown MemoryModel 0x%X ", vmib->MemoryModel);
- }
- if(!supported)
- ErrorF(" (unsupported)");
- else if(!linear_fb)
- ErrorF(" (no linear framebuffer)");
- ErrorF("\n");
- return 0;
-}
-#endif
-
-void
-VbeReportInfo (Vm86InfoPtr vi)
-{
- VbeInfoBlock vib;
- int code;
-
- code = VbeGetVib (vi, &vib);
- if (code >= 0)
- VbeReportVib(vi, &vib);
-}
-
-int
-VbeGetNmode (Vm86InfoPtr vi)
-{
- VbeInfoBlock vib;
- int code;
- unsigned int p;
- int n;
- int mode;
-
- code = VbeGetVib (vi, &vib);
- if (code >= 0)
- {
- p = MAKE_POINTER_1(vib.VideoModePtr);
- for (n = 0; ; n++)
- {
- mode = Vm86MemoryW(vi, p);
- if (mode == 0xffff)
- break;
- p += 2;
- }
- code = n;
- }
- return code;
-}
-
-int
-VbeGetModes (Vm86InfoPtr vi, VesaModePtr modes, int nmode)
-{
- VbeInfoBlock vib;
- int code;
- unsigned int p;
- int n;
- int mode;
- VbeModeInfoBlock vmib;
-
- code = VbeGetVib (vi, &vib);
- if (code < 0)
- return code;
-
- memset (modes, '\0', nmode * sizeof (VesaModeRec));
-
- p = MAKE_POINTER_1(vib.VideoModePtr);
- for (n = 0; n < nmode; n++)
- {
- mode = Vm86MemoryW(vi, p);
- if (mode == 0xffff)
- break;
- modes[n].mode = mode;
- modes[n].vbe = 1;
- p += 2;
- }
-
- nmode = n;
-
- for (n = 0; n < nmode; n++)
- {
- code = VbeGetVmib (vi, modes[n].mode, &vmib);
- if (code >= 0)
- {
- modes[n].ModeAttributes = vmib.ModeAttributes;
- modes[n].NumberOfPlanes = vmib.NumberOfPlanes;
- modes[n].BitsPerPixel = vmib.BitsPerPixel;
- modes[n].MemoryModel = vmib.MemoryModel;
- modes[n].RedMaskSize = vmib.RedMaskSize;
- modes[n].RedFieldPosition = vmib.RedFieldPosition;
- modes[n].GreenMaskSize = vmib.GreenMaskSize;
- modes[n].GreenFieldPosition = vmib.GreenFieldPosition;
- modes[n].BlueMaskSize = vmib.BlueMaskSize;
- modes[n].BlueFieldPosition = vmib.BlueFieldPosition;
- modes[n].RsvdMaskSize = vmib.RsvdMaskSize;
- modes[n].RsvdFieldPosition = vmib.RsvdFieldPosition;
- modes[n].DirectColorModeInfo = vmib.DirectColorModeInfo;
- modes[n].XResolution = vmib.XResolution;
- modes[n].YResolution = vmib.YResolution;
- modes[n].BytesPerScanLine = vmib.BytesPerScanLine;
- }
- }
-
- return nmode;
-}
-
-VbeInfoPtr
-VbeInit (Vm86InfoPtr vi)
-{
- VbeInfoPtr vbe;
- int code;
- VbeInfoBlock vib;
-
- code = VbeGetVib (vi, &vib);
- if (code < 0)
- return 0;
-
- vbe = xalloc (sizeof (VbeInfoRec));
- if (!vbe)
- return 0;
- vbe->palette_format = 6;
- vbe->palette_wait = TRUE;
- return vbe;
-}
-
-void
-VbeCleanup (Vm86InfoPtr vi, VbeInfoPtr vbe)
-{
- xfree (vbe);
-}
-
-int
-VbeSetMode (Vm86InfoPtr vi, VbeInfoPtr vbe, int mode, int linear, int direct)
-{
- int code;
- VbeInfoBlock vib;
- int palette_wait = 0, palette_hi = 0;
-
- code = VbeGetVib (vi, &vib);
- if (code < 0)
- return -1;
-
- code = VbeGetVmib (vi, mode, &vbe->vmib);
- if (code < 0)
- return -1;
-
- mode = (mode & 0xffff) &~ 0x8000;
- if (linear)
- mode |= 0x4000;
-
- vi->vms.regs.eax = 0x4F02;
- vi->vms.regs.ebx = mode;
- code = VbeDoInterrupt10(vi);
- if(code < 0)
- return -1;
-
- vbe->windowA_offset = vbe->windowB_offset = -1;
- vbe->last_window = 1;
-
- if (!direct)
- {
- if(vib.Capabilities[0] & 1)
- palette_hi = 1;
- if(vib.Capabilities[0] & 4)
- palette_wait = 1;
-
- if(palette_hi || palette_wait)
- VbeSetPaletteOptions(vi, vbe, palette_hi?8:6, palette_wait);
- }
-
- return 0;
-}
-
-int
-VbeGetMode(Vm86InfoPtr vi, int *mode)
-{
- int code;
-
- vi->vms.regs.eax = 0x4F03;
- code = VbeDoInterrupt10(vi);
- if(code < 0)
- return - 1;
- *mode = vi->vms.regs.ebx & 0xFFFF;
- return 0;
-}
-
-void *
-VbeMapFramebuffer(Vm86InfoPtr vi, VbeInfoPtr vbe, int mode, int *ret_size, CARD32 *ret_phys)
-{
- U8 *fb;
- VbeInfoBlock vib;
- VbeModeInfoBlock vmib;
- int size;
- int pagesize = getpagesize();
- int before, after;
-
- if (VbeGetVib (vi, &vib) < 0)
- return 0;
-
- if (VbeGetVmib (vi, mode, &vmib) < 0)
- return 0;
-
- size = 1024 * 64L * vib.TotalMemory;
-
- *ret_size = size;
- *ret_phys = vmib.PhysBasePtr;
-
- before = vmib.PhysBasePtr % pagesize;
- after = pagesize - ((vmib.PhysBasePtr + size) % pagesize);
- if(after == pagesize)
- after = 0;
-
- fb = KdMapDevice (vmib.PhysBasePtr - before, before + size + after);
-
- if(fb == 0)
- {
- ErrorF("Failed to map framebuffer\n");
- return NULL;
- }
-
- KdSetMappedMode (vmib.PhysBasePtr - before, before + size + after,
- KD_MAPPED_MODE_FRAMEBUFFER);
-
- return fb + before;
-}
-
-void
-VbeUnmapFramebuffer(Vm86InfoPtr vi, VbeInfoPtr vbe, int mode, void *fb)
-{
- VbeInfoBlock vib;
- VbeModeInfoBlock vmib;
- int size;
- int pagesize = getpagesize();
- int before, after;
-
- if (VbeGetVib (vi, &vib) < 0)
- return;
-
- if (VbeGetVmib (vi, mode, &vmib) < 0)
- return;
-
- size = 1024 * 64L * vib.TotalMemory;
-
- before = vmib.PhysBasePtr % pagesize;
- after = pagesize - ((vmib.PhysBasePtr + size) % pagesize);
- if(after == pagesize)
- after = 0;
-
- fb = (void *) ((char *) fb - before);
-
- KdUnmapDevice (fb, before + size + after);
- KdResetMappedMode (vmib.PhysBasePtr - before, before + size + after,
- KD_MAPPED_MODE_FRAMEBUFFER);
-}
-
-int
-VbeSetPalette(Vm86InfoPtr vi, VbeInfoPtr vbe, int first, int number, U8 *entries)
-{
- U8 *palette_scratch;
- int mark;
- int palette_base;
- int i, code;
-
- if(number == 0)
- return 0;
-
- if(first < 0 || number < 0 || first + number > 256) {
- ErrorF("Cannot set %d, %d palette entries\n", first, number);
- return -1;
- }
- if(vbe->palette_format < 6 || vbe->palette_format > 8) {
- ErrorF("Impossible palette format %d\n", vbe->palette_format);
- return -1;
- }
-
- mark = Vm86MarkMemory (vi);
- palette_base = Vm86AllocateMemory (vi, 4 * 256);
-
- palette_scratch = &LM(vi, palette_base);
-
- for(i=0; i<number*4; i++)
- palette_scratch[i] = entries[i] >> (8 - vbe->palette_format);
-
- vi->vms.regs.eax = 0x4F09;
- if(vbe->palette_wait)
- vi->vms.regs.ebx = 0x80;
- else
- vi->vms.regs.ebx = 0x00;
- vi->vms.regs.ecx = number;
- vi->vms.regs.edx = first;
- vi->vms.regs.es = POINTER_SEGMENT(palette_base);
- vi->vms.regs.edi = POINTER_OFFSET(palette_base);
- code = VbeDoInterrupt10(vi);
- Vm86ReleaseMemory (vi, mark);
-
- if(code < 0)
- return -1;
- return 0;
-}
-
-int
-VbeGetPalette(Vm86InfoPtr vi, VbeInfoPtr vbe, int first, int number, U8 *entries)
-{
- U8 *palette_scratch;
- int mark;
- int palette_base;
- int i, code;
-
- if(number == 0)
- return 0;
-
- if(first < 0 || number < 0 || first + number > 256) {
- ErrorF("Cannot get %d, %d palette entries\n", first, number);
- return -1;
- }
- if(vbe->palette_format < 6 || vbe->palette_format > 8) {
- ErrorF("Impossible palette format %d\n", vbe->palette_format);
- return -1;
- }
-
- mark = Vm86MarkMemory (vi);
- palette_base = Vm86AllocateMemory (vi, 4 * 256);
-
- palette_scratch = &LM(vi, palette_base);
-
- vi->vms.regs.eax = 0x4F09;
- vi->vms.regs.ebx = 0x01;
- vi->vms.regs.ecx = number;
- vi->vms.regs.edx = first;
- vi->vms.regs.es = POINTER_SEGMENT(palette_base);
- vi->vms.regs.edi = POINTER_OFFSET(palette_base);
- code = VbeDoInterrupt10(vi);
- if(code >= 0)
- {
- for(i=0; i<number*4; i++)
- entries[i] = palette_scratch[i] << (8-vbe->palette_format);
- }
- Vm86ReleaseMemory (vi, mark);
-
- return 0;
-}
-
-int
-VbeSetPaletteOptions(Vm86InfoPtr vi, VbeInfoPtr vbe, U8 bits, int wait)
-{
- int code;
-
- if(bits < 6 || bits > 8) {
- ErrorF("Impossible palette format %d\n", bits);
- return -1;
- }
- if(bits != vbe->palette_format)
- {
- vbe->palette_format = 0;
- vi->vms.regs.eax = 0x4F08;
- vi->vms.regs.ebx = bits << 8;
- code = VbeDoInterrupt10(vi);
- if(code < 0)
- return -1;
- vbe->palette_format = bits;
- }
- vbe->palette_wait = wait;
- return 0;
-}
-
-static int
-VbeReallySetWindow(Vm86InfoPtr vi, U8 window, U16 winnum)
-{
- int code;
- vi->vms.regs.eax = 0x4F05;
- vi->vms.regs.ebx = window;
- vi->vms.regs.edx = winnum;
- code = VbeDoInterrupt10(vi);
- if(code < 0)
- return -1;
- return 0;
-}
-
-void *
-VbeSetWindow(Vm86InfoPtr vi, VbeInfoPtr vbe, int offset, int purpose, int *size_return)
-{
- int window_size = vbe->vmib.WinSize * 1024;
- int code;
- int winnum;
-
- if(vbe->windowA_offset >= 0)
- if(vbe->windowA_offset <= offset && vbe->windowA_offset + window_size > offset)
- if(vbe->vmib.WinAAttributes & purpose)
- goto windowA;
-
- if(vbe->windowB_offset >= 0)
- if(vbe->windowB_offset <= offset && vbe->windowB_offset + window_size > offset)
- if(vbe->vmib.WinBAttributes & purpose)
- goto windowB;
-
- if(!(vbe->vmib.WinBAttributes & purpose) ||
- !(vbe->vmib.WinBAttributes & VBE_WINDOW_RELOCATE))
- goto set_windowA;
-
- if(!(vbe->vmib.WinAAttributes & purpose) ||
- !(vbe->vmib.WinAAttributes & VBE_WINDOW_RELOCATE))
- goto set_windowB;
-
- if(vbe->last_window)
- goto set_windowA;
- else
- goto set_windowB;
-
-set_windowA:
- winnum = offset / (vbe->vmib.WinGranularity * 1024);
- code = VbeReallySetWindow(vi, 0, winnum);
- if(code < 0) {
- ErrorF("Couldn't set window A to %d*%d\n",
- (int)winnum, (int)vbe->vmib.WinGranularity);
- return NULL;
- }
- vbe->windowA_offset = winnum * vbe->vmib.WinGranularity * 1024;
-windowA:
- vbe->last_window = 0;
- *size_return = vbe->vmib.WinSize * 1024 - (offset - vbe->windowA_offset);
- return ((U8*)&(LM(vi, MAKE_POINTER(vbe->vmib.WinASegment, 0)))) + offset - vbe->windowA_offset;
-
-set_windowB:
- winnum = offset / (vbe->vmib.WinGranularity * 1024);
- code = VbeReallySetWindow(vi, 1, winnum);
- if(code < 0) {
- ErrorF("Couldn't set window B to %d*%d\n",
- (int)winnum, (int)vbe->vmib.WinGranularity);
- return NULL;
- }
- vbe->windowB_offset = winnum * vbe->vmib.WinGranularity * 1024;
-windowB:
- vbe->last_window = 1;
- *size_return = vbe->vmib.WinSize * 1024 - (offset - vbe->windowB_offset);
- return ((U8*)&(LM(vi, MAKE_POINTER(vbe->vmib.WinBSegment, 0)))) + offset - vbe->windowB_offset;
-}
-
-static const int VbeDPMSModes[4] = {
- 0x00, /* KD_DPMS_NORMAL */
- 0x01, /* KD_DPMS_STANDBY */
- 0x02, /* KD_DPMS_SUSPEND */
- 0x04, /* KD_DPMS_POWERDOWN */
-};
-
-Bool
-VbeDPMS(Vm86InfoPtr vi, int mode)
-{
- int code;
-
- /*
- * Check which modes are supported
- */
- vi->vms.regs.eax = 0x4f10;
- vi->vms.regs.ebx = 0x0000;
- vi->vms.regs.es = 0;
- vi->vms.regs.edi = 0;
- code = VbeDoInterrupt10 (vi);
- if (code < 0)
- {
- ErrorF ("No DPMS Support %d\n", code);
- return FALSE;
- }
- /* Skip this stage if it's not supported */
- if (((vi->vms.regs.ebx >> 4) & VbeDPMSModes[mode]) != VbeDPMSModes[mode])
- return FALSE;
-
- /* Select this mode */
- vi->vms.regs.eax = 0x4f10;
- vi->vms.regs.ebx = (VbeDPMSModes[mode] << 8) | 0x01;
- code = VbeDoInterrupt10 (vi);
- if (code < 0)
- {
- ErrorF ("DPMS failed %d\n", code);
- return FALSE;
- }
-
- return TRUE;
-}
-
-Bool
-VbeBoot(Vm86InfoPtr vi)
-{
- int code;
- int bus = 1;
- int device = 0;
- int function = 0;
-
- vi->vms.regs.eax = (bus << 8) | (device << 3) | (function & 0x7);
- code = VbeDoInterruptE6 (vi);
- ErrorF ("Boot: %d\n", code);
- return TRUE;
-}
-
-int
-VbeDoInterrupt10(Vm86InfoPtr vi)
-{
- int code;
- int oldax;
-
- oldax = vi->vms.regs.eax & 0xFFFF;
-
- code = Vm86DoInterrupt(vi, 0x10);
- if(code < 0)
- return -1;
-
- if((vi->vms.regs.eax & 0xFFFF) != 0x4F && (oldax & 0xFF00) == 0x4F00) {
- ErrorF("Int 10h (0x%04X) failed: 0x%04X",
- oldax, vi->vms.regs.eax & 0xFFFF);
- if((oldax & 0xFF00) == 0x4F00) {
- switch((vi->vms.regs.eax & 0xFF00)>>8) {
- case 0:
- ErrorF(" (success)\n");
- return 0;
- case 1:
- ErrorF(" (function call failed)\n");
- break;
- case 2:
- ErrorF(" (function not supported on this hardware)\n");
- break;
- case 3:
- ErrorF(" (function call invalid in this video mode)\n");
- break;
- default:
- ErrorF(" (unknown error)\n");
- break;
- } return -1;
- } else {
- ErrorF("\n");
- }
- }
- return code;
-}
-
-int
-VbeDoInterruptE6(Vm86InfoPtr vi)
-{
- int code;
- int oldax;
-
- oldax = vi->vms.regs.eax & 0xffff;
-
- code = Vm86DoPOST (vi);
- ErrorF("POST (0x%04X): 0x%04X\n",
- oldax, vi->vms.regs.eax & 0xffff);
- return code;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-27 22:40:58 +0000