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Diffstat (limited to 'qemu/roms/seabios/vgasrc/vgainit.c')
-rw-r--r--qemu/roms/seabios/vgasrc/vgainit.c196
1 files changed, 0 insertions, 196 deletions
diff --git a/qemu/roms/seabios/vgasrc/vgainit.c b/qemu/roms/seabios/vgasrc/vgainit.c
deleted file mode 100644
index 40997dbbd..000000000
--- a/qemu/roms/seabios/vgasrc/vgainit.c
+++ /dev/null
@@ -1,196 +0,0 @@
-// Main VGA bios initialization
-//
-// Copyright (C) 2009-2013 Kevin O'Connor <kevin@koconnor.net>
-// Copyright (C) 2001-2008 the LGPL VGABios developers Team
-//
-// This file may be distributed under the terms of the GNU LGPLv3 license.
-
-#include "biosvar.h" // SET_BDA
-#include "bregs.h" // struct bregs
-#include "hw/pci.h" // pci_config_readw
-#include "hw/pci_regs.h" // PCI_VENDOR_ID
-#include "hw/serialio.h" // serial_debug_preinit
-#include "output.h" // dprintf
-#include "std/optionrom.h" // struct pci_data
-#include "std/pmm.h" // struct pmmheader
-#include "string.h" // checksum_far
-#include "util.h" // VERSION
-#include "vgabios.h" // video_save_pointer_table
-#include "vgahw.h" // vgahw_setup
-
-struct video_save_pointer_s video_save_pointer_table VAR16;
-
-struct video_param_s video_param_table[29] VAR16;
-
-// Type of emulator platform - for dprintf with certain compile options.
-int PlatformRunningOn VAR16;
-
-
-/****************************************************************
- * PCI Data
- ****************************************************************/
-
-struct pci_data rom_pci_data VAR16 VISIBLE16 = {
- .signature = PCI_ROM_SIGNATURE,
- .vendor = CONFIG_VGA_VID,
- .device = CONFIG_VGA_DID,
- .dlen = 0x18,
- .class_hi = 0x300,
- .irevision = 1,
- .type = PCIROM_CODETYPE_X86,
- .indicator = 0x80,
-};
-
-
-/****************************************************************
- * PMM call and extra stack setup
- ****************************************************************/
-
-u16 ExtraStackSeg VAR16 VISIBLE16;
-
-static void
-allocate_extra_stack(void)
-{
- if (!CONFIG_VGA_ALLOCATE_EXTRA_STACK)
- return;
- u32 pmmscan;
- for (pmmscan=0; pmmscan < BUILD_BIOS_SIZE; pmmscan+=16) {
- struct pmmheader *pmm = (void*)pmmscan;
- if (GET_FARVAR(SEG_BIOS, pmm->signature) != PMM_SIGNATURE)
- continue;
- if (checksum_far(SEG_BIOS, pmm, GET_FARVAR(SEG_BIOS, pmm->length)))
- continue;
- struct segoff_s entry = GET_FARVAR(SEG_BIOS, pmm->entry);
- dprintf(1, "Attempting to allocate VGA stack via pmm call to %04x:%04x\n"
- , entry.seg, entry.offset);
- u16 res1, res2;
- asm volatile(
- "pushl %0\n"
- "pushw $(8|1)\n" // Permanent low memory request
- "pushl $0xffffffff\n" // Anonymous handle
- "pushl $" __stringify(CONFIG_VGA_EXTRA_STACK_SIZE/16) "\n"
- "pushw $0x00\n" // PMM allocation request
- "lcallw *12(%%esp)\n"
- "addl $16, %%esp\n"
- "cli\n"
- "cld\n"
- : "+r" (entry.segoff), "=a" (res1), "=d" (res2) : : "cc", "memory");
- u32 res = res1 | (res2 << 16);
- if (!res || res == PMM_FUNCTION_NOT_SUPPORTED)
- return;
- dprintf(1, "VGA stack allocated at %x\n", res);
- SET_VGA(ExtraStackSeg, res >> 4);
- extern void entry_10_extrastack(void);
- SET_IVT(0x10, SEGOFF(get_global_seg(), (u32)entry_10_extrastack));
- return;
- }
-}
-
-
-/****************************************************************
- * Timer hook
- ****************************************************************/
-
-struct segoff_s Timer_Hook_Resume VAR16 VISIBLE16;
-
-void VISIBLE16
-handle_timer_hook(void)
-{
- if (!vga_emulate_text())
- return;
- vgafb_set_swcursor(GET_BDA(timer_counter) % 18 < 9);
-}
-
-static void
-hook_timer_irq(void)
-{
- if (!CONFIG_VGA_EMULATE_TEXT)
- return;
- extern void entry_timer_hook(void);
- extern void entry_timer_hook_extrastack(void);
- struct segoff_s oldirq = GET_IVT(0x08);
- struct segoff_s newirq = SEGOFF(get_global_seg(), (u32)entry_timer_hook);
- if (CONFIG_VGA_ALLOCATE_EXTRA_STACK && GET_GLOBAL(ExtraStackSeg))
- newirq = SEGOFF(get_global_seg(), (u32)entry_timer_hook_extrastack);
- dprintf(1, "Hooking hardware timer irq (old=%x new=%x)\n"
- , oldirq.segoff, newirq.segoff);
- SET_VGA(Timer_Hook_Resume, oldirq);
- SET_IVT(0x08, newirq);
-}
-
-
-/****************************************************************
- * VGA post
- ****************************************************************/
-
-static void
-init_bios_area(void)
-{
- // init detected hardware BIOS Area
- // set 80x25 color (not clear from RBIL but usual)
- set_equipment_flags(0x30, 0x20);
-
- // Set the basic modeset options
- SET_BDA(modeset_ctl, 0x51);
-
- SET_BDA(dcc_index, CONFIG_VGA_STDVGA_PORTS ? 0x08 : 0xff);
- SET_BDA(video_savetable
- , SEGOFF(get_global_seg(), (u32)&video_save_pointer_table));
-
- // FIXME
- SET_BDA(video_msr, 0x00); // Unavailable on vanilla vga, but...
- SET_BDA(video_pal, 0x00); // Unavailable on vanilla vga, but...
-}
-
-int VgaBDF VAR16 = -1;
-int HaveRunInit VAR16;
-
-void VISIBLE16
-vga_post(struct bregs *regs)
-{
- serial_debug_preinit();
- dprintf(1, "Start SeaVGABIOS (version %s)\n", VERSION);
- dprintf(1, "VGABUILD: %s\n", BUILDINFO);
- debug_enter(regs, DEBUG_VGA_POST);
-
- if (CONFIG_VGA_PCI && !GET_GLOBAL(HaveRunInit)) {
- u16 bdf = regs->ax;
- if ((pci_config_readw(bdf, PCI_VENDOR_ID)
- == GET_GLOBAL(rom_pci_data.vendor))
- && (pci_config_readw(bdf, PCI_DEVICE_ID)
- == GET_GLOBAL(rom_pci_data.device)))
- SET_VGA(VgaBDF, bdf);
- }
-
- int ret = vgahw_setup();
- if (ret) {
- dprintf(1, "Failed to initialize VGA hardware. Exiting.\n");
- return;
- }
-
- if (GET_GLOBAL(HaveRunInit))
- return;
-
- init_bios_area();
-
- SET_VGA(video_save_pointer_table.videoparam
- , SEGOFF(get_global_seg(), (u32)video_param_table));
- if (CONFIG_VGA_STDVGA_PORTS)
- stdvga_build_video_param();
-
- extern void entry_10(void);
- SET_IVT(0x10, SEGOFF(get_global_seg(), (u32)entry_10));
-
- allocate_extra_stack();
-
- hook_timer_irq();
-
- SET_VGA(HaveRunInit, 1);
-
- // Fixup checksum
- extern u8 _rom_header_size, _rom_header_checksum;
- SET_VGA(_rom_header_checksum, 0);
- u8 sum = -checksum_far(get_global_seg(), 0,
- GET_GLOBAL(_rom_header_size) * 512);
- SET_VGA(_rom_header_checksum, sum);
-}