[SeaBIOS] [PATCH 06/20] vgabios: Move vbe code from vgabios.c to new file vbe.c.
Kevin O'Connor
kevin at koconnor.net
Sun Jan 1 18:21:27 CET 2012
Signed-off-by: Kevin O'Connor <kevin at koconnor.net>
---
Makefile | 2 +-
vgasrc/vbe.c | 301 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
vgasrc/vgabios.c | 289 ---------------------------------------------------
vgasrc/vgabios.h | 3 +
4 files changed, 305 insertions(+), 290 deletions(-)
create mode 100644 vgasrc/vbe.c
diff --git a/Makefile b/Makefile
index 2346ee3..08f8af2 100644
--- a/Makefile
+++ b/Makefile
@@ -170,7 +170,7 @@ $(OUT)bios.bin.elf $(OUT)bios.bin: $(OUT)rom.o tools/checkrom.py
# VGA src files
SRCVGA=src/output.c src/util.c vgasrc/vgabios.c vgasrc/vgafb.c vgasrc/vgaio.c \
- vgasrc/vgatables.c vgasrc/vgafonts.c \
+ vgasrc/vgatables.c vgasrc/vgafonts.c vgasrc/vbe.c \
vgasrc/clext.c vgasrc/bochsvga.c vgasrc/geodelx.c
CFLAGS16VGA = $(CFLAGS16INC) -g -Isrc
diff --git a/vgasrc/vbe.c b/vgasrc/vbe.c
new file mode 100644
index 0000000..f598921
--- /dev/null
+++ b/vgasrc/vbe.c
@@ -0,0 +1,301 @@
+// Video Bios Extensions handlers
+//
+// Copyright (C) 2009 Kevin O'Connor <kevin at 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 "vgabios.h" // handle_104f
+#include "config.h" // CONFIG_*
+#include "bregs.h" // struct bregs
+#include "vbe.h" // struct vbe_info
+#include "util.h" // dprintf
+#include "biosvar.h" // get_global_set
+#include "bochsvga.h" // bochsvga_set_mode
+
+static void
+vbe_104f00(struct bregs *regs)
+{
+ u16 seg = regs->es;
+ struct vbe_info *info = (void*)(regs->di+0);
+
+ if (GET_FARVAR(seg, info->signature) == VBE2_SIGNATURE) {
+ dprintf(4, "Get VBE Controller: VBE2 Signature found\n");
+ } else if (GET_FARVAR(seg, info->signature) == VESA_SIGNATURE) {
+ dprintf(4, "Get VBE Controller: VESA Signature found\n");
+ } else {
+ dprintf(4, "Get VBE Controller: Invalid Signature\n");
+ }
+
+ memset_far(seg, info, 0, sizeof(*info));
+
+ SET_FARVAR(seg, info->signature, VESA_SIGNATURE);
+
+ SET_FARVAR(seg, info->version, 0x0200);
+
+ SET_FARVAR(seg, info->oem_string,
+ SEGOFF(get_global_seg(), (u32)VBE_OEM_STRING));
+ SET_FARVAR(seg, info->capabilities, 0x1); /* 8BIT DAC */
+
+ /* We generate our mode list in the reserved field of the info block */
+ SET_FARVAR(seg, info->video_mode, SEGOFF(seg, regs->di + 34));
+
+ /* Total memory (in 64 blocks) */
+ SET_FARVAR(seg, info->total_memory, bochsvga_total_mem());
+
+ SET_FARVAR(seg, info->oem_vendor_string,
+ SEGOFF(get_global_seg(), (u32)VBE_VENDOR_STRING));
+ SET_FARVAR(seg, info->oem_product_string,
+ SEGOFF(get_global_seg(), (u32)VBE_PRODUCT_STRING));
+ SET_FARVAR(seg, info->oem_revision_string,
+ SEGOFF(get_global_seg(), (u32)VBE_REVISION_STRING));
+
+ /* Fill list of modes */
+ bochsvga_list_modes(seg, regs->di + 32);
+
+ regs->al = regs->ah; /* 0x4F, Function supported */
+ regs->ah = 0x0; /* 0x0, Function call successful */
+}
+
+static void
+vbe_104f01(struct bregs *regs)
+{
+ u16 seg = regs->es;
+ struct vbe_mode_info *info = (void*)(regs->di+0);
+ u16 mode = regs->cx;
+ struct vbe_modeinfo modeinfo;
+ int rc;
+
+ dprintf(1, "VBE mode info request: %x\n", mode);
+
+ rc = bochsvga_mode_info(mode, &modeinfo);
+ if (rc) {
+ dprintf(1, "VBE mode %x not found\n", mode);
+ regs->ax = 0x100;
+ return;
+ }
+
+ u16 mode_attr = VBE_MODE_ATTRIBUTE_SUPPORTED |
+ VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE |
+ VBE_MODE_ATTRIBUTE_COLOR_MODE |
+ VBE_MODE_ATTRIBUTE_GRAPHICS_MODE;
+ if (modeinfo.depth == 4)
+ mode_attr |= VBE_MODE_ATTRIBUTE_TTY_BIOS_SUPPORT;
+ else
+ mode_attr |= VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE;
+ SET_FARVAR(seg, info->mode_attributes, mode_attr);
+ SET_FARVAR(seg, info->winA_attributes,
+ VBE_WINDOW_ATTRIBUTE_RELOCATABLE |
+ VBE_WINDOW_ATTRIBUTE_READABLE |
+ VBE_WINDOW_ATTRIBUTE_WRITEABLE);
+ SET_FARVAR(seg, info->winB_attributes, 0);
+ SET_FARVAR(seg, info->win_granularity, 64); /* Bank size 64K */
+ SET_FARVAR(seg, info->win_size, 64); /* Bank size 64K */
+ SET_FARVAR(seg, info->winA_seg, 0xA000);
+ SET_FARVAR(seg, info->winB_seg, 0x0);
+ SET_FARVAR(seg, info->win_func_ptr.segoff, 0x0);
+ SET_FARVAR(seg, info->bytes_per_scanline, modeinfo.linesize);
+ SET_FARVAR(seg, info->xres, modeinfo.width);
+ SET_FARVAR(seg, info->yres, modeinfo.height);
+ SET_FARVAR(seg, info->xcharsize, 8);
+ SET_FARVAR(seg, info->ycharsize, 16);
+ if (modeinfo.depth == 4)
+ SET_FARVAR(seg, info->planes, 4);
+ else
+ SET_FARVAR(seg, info->planes, 1);
+ SET_FARVAR(seg, info->bits_per_pixel, modeinfo.depth);
+ SET_FARVAR(seg, info->banks,
+ (modeinfo.linesize * modeinfo.height + 65535) / 65536);
+ if (modeinfo.depth == 4)
+ SET_FARVAR(seg, info->mem_model, VBE_MEMORYMODEL_PLANAR);
+ else if (modeinfo.depth == 8)
+ SET_FARVAR(seg, info->mem_model, VBE_MEMORYMODEL_PACKED_PIXEL);
+ else
+ SET_FARVAR(seg, info->mem_model, VBE_MEMORYMODEL_DIRECT_COLOR);
+ SET_FARVAR(seg, info->bank_size, 0);
+ u32 pages = modeinfo.vram_size / (modeinfo.height * modeinfo.linesize);
+ if (modeinfo.depth == 4)
+ SET_FARVAR(seg, info->pages, (pages / 4) - 1);
+ else
+ SET_FARVAR(seg, info->pages, pages - 1);
+ SET_FARVAR(seg, info->reserved0, 1);
+
+ u8 r_size, r_pos, g_size, g_pos, b_size, b_pos, a_size, a_pos;
+
+ switch (modeinfo.depth) {
+ case 15: r_size = 5; r_pos = 10; g_size = 5; g_pos = 5;
+ b_size = 5; b_pos = 0; a_size = 1; a_pos = 15; break;
+ case 16: r_size = 5; r_pos = 11; g_size = 6; g_pos = 5;
+ b_size = 5; b_pos = 0; a_size = 0; a_pos = 0; break;
+ case 24: r_size = 8; r_pos = 16; g_size = 8; g_pos = 8;
+ b_size = 8; b_pos = 0; a_size = 0; a_pos = 0; break;
+ case 32: r_size = 8; r_pos = 16; g_size = 8; g_pos = 8;
+ b_size = 8; b_pos = 0; a_size = 8; a_pos = 24; break;
+ default: r_size = 0; r_pos = 0; g_size = 0; g_pos = 0;
+ b_size = 0; b_pos = 0; a_size = 0; a_pos = 0; break;
+ }
+
+ SET_FARVAR(seg, info->red_size, r_size);
+ SET_FARVAR(seg, info->red_pos, r_pos);
+ SET_FARVAR(seg, info->green_size, g_size);
+ SET_FARVAR(seg, info->green_pos, g_pos);
+ SET_FARVAR(seg, info->blue_size, b_size);
+ SET_FARVAR(seg, info->blue_pos, b_pos);
+ SET_FARVAR(seg, info->alpha_size, a_size);
+ SET_FARVAR(seg, info->alpha_pos, a_pos);
+
+ if (modeinfo.depth == 32)
+ SET_FARVAR(seg, info->directcolor_info,
+ VBE_DIRECTCOLOR_RESERVED_BITS_AVAILABLE);
+ else
+ SET_FARVAR(seg, info->directcolor_info, 0);
+
+ if (modeinfo.depth > 4)
+ SET_FARVAR(seg, info->phys_base, modeinfo.phys_base);
+ else
+ SET_FARVAR(seg, info->phys_base, 0);
+
+ SET_FARVAR(seg, info->reserved1, 0);
+ SET_FARVAR(seg, info->reserved2, 0);
+ SET_FARVAR(seg, info->linear_bytes_per_scanline, modeinfo.linesize);
+ SET_FARVAR(seg, info->bank_pages, 0);
+ SET_FARVAR(seg, info->linear_pages, 0);
+ SET_FARVAR(seg, info->linear_red_size, r_size);
+ SET_FARVAR(seg, info->linear_red_pos, r_pos);
+ SET_FARVAR(seg, info->linear_green_size, g_size);
+ SET_FARVAR(seg, info->linear_green_pos, g_pos);
+ SET_FARVAR(seg, info->linear_blue_size, b_size);
+ SET_FARVAR(seg, info->linear_blue_pos, b_pos);
+ SET_FARVAR(seg, info->linear_alpha_size, a_size);
+ SET_FARVAR(seg, info->linear_alpha_pos, a_pos);
+ SET_FARVAR(seg, info->pixclock_max, 0);
+
+ regs->al = regs->ah; /* 0x4F, Function supported */
+ regs->ah = 0x0; /* 0x0, Function call successful */
+}
+
+static void
+vbe_104f02(struct bregs *regs)
+{
+ //u16 seg = regs->es;
+ //struct vbe_crtc_info *crtc_info = (void*)(regs->di+0);
+ u16 mode = regs->bx;
+ struct vbe_modeinfo modeinfo;
+ int rc;
+
+ dprintf(1, "VBE mode set: %x\n", mode);
+
+ if (mode < 0x100) { /* VGA */
+ dprintf(1, "set VGA mode %x\n", mode);
+
+ bochsvga_hires_enable(0);
+ vga_set_mode(mode, 0);
+ } else { /* VBE */
+ rc = bochsvga_mode_info(mode & 0x1ff, &modeinfo);
+ if (rc) {
+ dprintf(1, "VBE mode %x not found\n", mode & 0x1ff);
+ regs->ax = 0x100;
+ return;
+ }
+ bochsvga_hires_enable(1);
+ bochsvga_set_mode(mode & 0x1ff, &modeinfo);
+
+ if (mode & 0x4000) {
+ /* Linear frame buffer */
+ /* XXX: ??? */
+ }
+ if (!(mode & 0x8000)) {
+ bochsvga_clear_scr();
+ }
+ }
+
+ regs->al = regs->ah; /* 0x4F, Function supported */
+ regs->ah = 0x0; /* 0x0, Function call successful */
+}
+
+static void
+vbe_104f03(struct bregs *regs)
+{
+ if (!bochsvga_hires_enabled()) {
+ regs->bx = GET_BDA(video_mode);
+ } else {
+ regs->bx = bochsvga_curr_mode();
+ }
+
+ dprintf(1, "VBE current mode=%x\n", regs->bx);
+
+ regs->al = regs->ah; /* 0x4F, Function supported */
+ regs->ah = 0x0; /* 0x0, Function call successful */
+}
+
+static void
+vbe_104f04(struct bregs *regs)
+{
+ debug_stub(regs);
+ regs->ax = 0x0100;
+}
+
+static void
+vbe_104f05(struct bregs *regs)
+{
+ debug_stub(regs);
+ regs->ax = 0x0100;
+}
+
+static void
+vbe_104f06(struct bregs *regs)
+{
+ debug_stub(regs);
+ regs->ax = 0x0100;
+}
+
+static void
+vbe_104f07(struct bregs *regs)
+{
+ debug_stub(regs);
+ regs->ax = 0x0100;
+}
+
+static void
+vbe_104f08(struct bregs *regs)
+{
+ debug_stub(regs);
+ regs->ax = 0x0100;
+}
+
+static void
+vbe_104f0a(struct bregs *regs)
+{
+ debug_stub(regs);
+ regs->ax = 0x0100;
+}
+
+static void
+vbe_104fXX(struct bregs *regs)
+{
+ debug_stub(regs);
+ regs->ax = 0x0100;
+}
+
+void
+handle_104f(struct bregs *regs)
+{
+ if (!bochsvga_enabled()) {
+ vbe_104fXX(regs);
+ return;
+ }
+
+ switch (regs->al) {
+ case 0x00: vbe_104f00(regs); break;
+ case 0x01: vbe_104f01(regs); break;
+ case 0x02: vbe_104f02(regs); break;
+ case 0x03: vbe_104f03(regs); break;
+ case 0x04: vbe_104f04(regs); break;
+ case 0x05: vbe_104f05(regs); break;
+ case 0x06: vbe_104f06(regs); break;
+ case 0x07: vbe_104f07(regs); break;
+ case 0x08: vbe_104f08(regs); break;
+ case 0x0a: vbe_104f0a(regs); break;
+ default: vbe_104fXX(regs); break;
+ }
+}
diff --git a/vgasrc/vgabios.c b/vgasrc/vgabios.c
index 2ff677e..f1b84f9 100644
--- a/vgasrc/vgabios.c
+++ b/vgasrc/vgabios.c
@@ -17,7 +17,6 @@
#include "vgabios.h" // find_vga_entry
#include "optionroms.h" // struct pci_data
#include "config.h" // CONFIG_*
-#include "vbe.h" // struct vbe_info
#include "geodelx.h" // geodelx_init
#include "bochsvga.h" // bochsvga_init
@@ -1206,294 +1205,6 @@ handle_101c(struct bregs *regs)
}
static void
-handle_104f00(struct bregs *regs)
-{
- u16 seg = regs->es;
- struct vbe_info *info = (void*)(regs->di+0);
-
- if (GET_FARVAR(seg, info->signature) == VBE2_SIGNATURE) {
- dprintf(4, "Get VBE Controller: VBE2 Signature found\n");
- } else if (GET_FARVAR(seg, info->signature) == VESA_SIGNATURE) {
- dprintf(4, "Get VBE Controller: VESA Signature found\n");
- } else {
- dprintf(4, "Get VBE Controller: Invalid Signature\n");
- }
-
- memset_far(seg, info, 0, sizeof(*info));
-
- SET_FARVAR(seg, info->signature, VESA_SIGNATURE);
-
- SET_FARVAR(seg, info->version, 0x0200);
-
- SET_FARVAR(seg, info->oem_string,
- SEGOFF(get_global_seg(), (u32)VBE_OEM_STRING));
- SET_FARVAR(seg, info->capabilities, 0x1); /* 8BIT DAC */
-
- /* We generate our mode list in the reserved field of the info block */
- SET_FARVAR(seg, info->video_mode, SEGOFF(seg, regs->di + 34));
-
- /* Total memory (in 64 blocks) */
- SET_FARVAR(seg, info->total_memory, bochsvga_total_mem());
-
- SET_FARVAR(seg, info->oem_vendor_string,
- SEGOFF(get_global_seg(), (u32)VBE_VENDOR_STRING));
- SET_FARVAR(seg, info->oem_product_string,
- SEGOFF(get_global_seg(), (u32)VBE_PRODUCT_STRING));
- SET_FARVAR(seg, info->oem_revision_string,
- SEGOFF(get_global_seg(), (u32)VBE_REVISION_STRING));
-
- /* Fill list of modes */
- bochsvga_list_modes(seg, regs->di + 32);
-
- regs->al = regs->ah; /* 0x4F, Function supported */
- regs->ah = 0x0; /* 0x0, Function call successful */
-}
-
-static void
-handle_104f01(struct bregs *regs)
-{
- u16 seg = regs->es;
- struct vbe_mode_info *info = (void*)(regs->di+0);
- u16 mode = regs->cx;
- struct vbe_modeinfo modeinfo;
- int rc;
-
- dprintf(1, "VBE mode info request: %x\n", mode);
-
- rc = bochsvga_mode_info(mode, &modeinfo);
- if (rc) {
- dprintf(1, "VBE mode %x not found\n", mode);
- regs->ax = 0x100;
- return;
- }
-
- u16 mode_attr = VBE_MODE_ATTRIBUTE_SUPPORTED |
- VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE |
- VBE_MODE_ATTRIBUTE_COLOR_MODE |
- VBE_MODE_ATTRIBUTE_GRAPHICS_MODE;
- if (modeinfo.depth == 4)
- mode_attr |= VBE_MODE_ATTRIBUTE_TTY_BIOS_SUPPORT;
- else
- mode_attr |= VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE;
- SET_FARVAR(seg, info->mode_attributes, mode_attr);
- SET_FARVAR(seg, info->winA_attributes,
- VBE_WINDOW_ATTRIBUTE_RELOCATABLE |
- VBE_WINDOW_ATTRIBUTE_READABLE |
- VBE_WINDOW_ATTRIBUTE_WRITEABLE);
- SET_FARVAR(seg, info->winB_attributes, 0);
- SET_FARVAR(seg, info->win_granularity, 64); /* Bank size 64K */
- SET_FARVAR(seg, info->win_size, 64); /* Bank size 64K */
- SET_FARVAR(seg, info->winA_seg, 0xA000);
- SET_FARVAR(seg, info->winB_seg, 0x0);
- SET_FARVAR(seg, info->win_func_ptr.segoff, 0x0);
- SET_FARVAR(seg, info->bytes_per_scanline, modeinfo.linesize);
- SET_FARVAR(seg, info->xres, modeinfo.width);
- SET_FARVAR(seg, info->yres, modeinfo.height);
- SET_FARVAR(seg, info->xcharsize, 8);
- SET_FARVAR(seg, info->ycharsize, 16);
- if (modeinfo.depth == 4)
- SET_FARVAR(seg, info->planes, 4);
- else
- SET_FARVAR(seg, info->planes, 1);
- SET_FARVAR(seg, info->bits_per_pixel, modeinfo.depth);
- SET_FARVAR(seg, info->banks,
- (modeinfo.linesize * modeinfo.height + 65535) / 65536);
- if (modeinfo.depth == 4)
- SET_FARVAR(seg, info->mem_model, VBE_MEMORYMODEL_PLANAR);
- else if (modeinfo.depth == 8)
- SET_FARVAR(seg, info->mem_model, VBE_MEMORYMODEL_PACKED_PIXEL);
- else
- SET_FARVAR(seg, info->mem_model, VBE_MEMORYMODEL_DIRECT_COLOR);
- SET_FARVAR(seg, info->bank_size, 0);
- u32 pages = modeinfo.vram_size / (modeinfo.height * modeinfo.linesize);
- if (modeinfo.depth == 4)
- SET_FARVAR(seg, info->pages, (pages / 4) - 1);
- else
- SET_FARVAR(seg, info->pages, pages - 1);
- SET_FARVAR(seg, info->reserved0, 1);
-
- u8 r_size, r_pos, g_size, g_pos, b_size, b_pos, a_size, a_pos;
-
- switch (modeinfo.depth) {
- case 15: r_size = 5; r_pos = 10; g_size = 5; g_pos = 5;
- b_size = 5; b_pos = 0; a_size = 1; a_pos = 15; break;
- case 16: r_size = 5; r_pos = 11; g_size = 6; g_pos = 5;
- b_size = 5; b_pos = 0; a_size = 0; a_pos = 0; break;
- case 24: r_size = 8; r_pos = 16; g_size = 8; g_pos = 8;
- b_size = 8; b_pos = 0; a_size = 0; a_pos = 0; break;
- case 32: r_size = 8; r_pos = 16; g_size = 8; g_pos = 8;
- b_size = 8; b_pos = 0; a_size = 8; a_pos = 24; break;
- default: r_size = 0; r_pos = 0; g_size = 0; g_pos = 0;
- b_size = 0; b_pos = 0; a_size = 0; a_pos = 0; break;
- }
-
- SET_FARVAR(seg, info->red_size, r_size);
- SET_FARVAR(seg, info->red_pos, r_pos);
- SET_FARVAR(seg, info->green_size, g_size);
- SET_FARVAR(seg, info->green_pos, g_pos);
- SET_FARVAR(seg, info->blue_size, b_size);
- SET_FARVAR(seg, info->blue_pos, b_pos);
- SET_FARVAR(seg, info->alpha_size, a_size);
- SET_FARVAR(seg, info->alpha_pos, a_pos);
-
- if (modeinfo.depth == 32)
- SET_FARVAR(seg, info->directcolor_info,
- VBE_DIRECTCOLOR_RESERVED_BITS_AVAILABLE);
- else
- SET_FARVAR(seg, info->directcolor_info, 0);
-
- if (modeinfo.depth > 4)
- SET_FARVAR(seg, info->phys_base, modeinfo.phys_base);
- else
- SET_FARVAR(seg, info->phys_base, 0);
-
- SET_FARVAR(seg, info->reserved1, 0);
- SET_FARVAR(seg, info->reserved2, 0);
- SET_FARVAR(seg, info->linear_bytes_per_scanline, modeinfo.linesize);
- SET_FARVAR(seg, info->bank_pages, 0);
- SET_FARVAR(seg, info->linear_pages, 0);
- SET_FARVAR(seg, info->linear_red_size, r_size);
- SET_FARVAR(seg, info->linear_red_pos, r_pos);
- SET_FARVAR(seg, info->linear_green_size, g_size);
- SET_FARVAR(seg, info->linear_green_pos, g_pos);
- SET_FARVAR(seg, info->linear_blue_size, b_size);
- SET_FARVAR(seg, info->linear_blue_pos, b_pos);
- SET_FARVAR(seg, info->linear_alpha_size, a_size);
- SET_FARVAR(seg, info->linear_alpha_pos, a_pos);
- SET_FARVAR(seg, info->pixclock_max, 0);
-
- regs->al = regs->ah; /* 0x4F, Function supported */
- regs->ah = 0x0; /* 0x0, Function call successful */
-}
-
-static void
-handle_104f02(struct bregs *regs)
-{
- //u16 seg = regs->es;
- //struct vbe_crtc_info *crtc_info = (void*)(regs->di+0);
- u16 mode = regs->bx;
- struct vbe_modeinfo modeinfo;
- int rc;
-
- dprintf(1, "VBE mode set: %x\n", mode);
-
- if (mode < 0x100) { /* VGA */
- dprintf(1, "set VGA mode %x\n", mode);
-
- bochsvga_hires_enable(0);
- vga_set_mode(mode, 0);
- } else { /* VBE */
- rc = bochsvga_mode_info(mode & 0x1ff, &modeinfo);
- if (rc) {
- dprintf(1, "VBE mode %x not found\n", mode & 0x1ff);
- regs->ax = 0x100;
- return;
- }
- bochsvga_hires_enable(1);
- bochsvga_set_mode(mode & 0x1ff, &modeinfo);
-
- if (mode & 0x4000) {
- /* Linear frame buffer */
- /* XXX: ??? */
- }
- if (!(mode & 0x8000)) {
- bochsvga_clear_scr();
- }
- }
-
- regs->al = regs->ah; /* 0x4F, Function supported */
- regs->ah = 0x0; /* 0x0, Function call successful */
-}
-
-static void
-handle_104f03(struct bregs *regs)
-{
- if (!bochsvga_hires_enabled()) {
- regs->bx = GET_BDA(video_mode);
- } else {
- regs->bx = bochsvga_curr_mode();
- }
-
- dprintf(1, "VBE current mode=%x\n", regs->bx);
-
- regs->al = regs->ah; /* 0x4F, Function supported */
- regs->ah = 0x0; /* 0x0, Function call successful */
-}
-
-static void
-handle_104f04(struct bregs *regs)
-{
- debug_enter(regs, DEBUG_VGA_10);
- regs->ax = 0x0100;
-}
-
-static void
-handle_104f05(struct bregs *regs)
-{
- debug_enter(regs, DEBUG_VGA_10);
- regs->ax = 0x0100;
-}
-
-static void
-handle_104f06(struct bregs *regs)
-{
- debug_enter(regs, DEBUG_VGA_10);
- regs->ax = 0x0100;
-}
-
-static void
-handle_104f07(struct bregs *regs)
-{
- debug_enter(regs, DEBUG_VGA_10);
- regs->ax = 0x0100;
-}
-
-static void
-handle_104f08(struct bregs *regs)
-{
- debug_enter(regs, DEBUG_VGA_10);
- regs->ax = 0x0100;
-}
-
-static void
-handle_104f0a(struct bregs *regs)
-{
- debug_enter(regs, DEBUG_VGA_10);
- regs->ax = 0x0100;
-}
-
-static void
-handle_104fXX(struct bregs *regs)
-{
- debug_stub(regs);
- regs->ax = 0x0100;
-}
-
-static void
-handle_104f(struct bregs *regs)
-{
- if (!bochsvga_enabled()) {
- handle_104fXX(regs);
- return;
- }
-
- switch (regs->al) {
- case 0x00: handle_104f00(regs); break;
- case 0x01: handle_104f01(regs); break;
- case 0x02: handle_104f02(regs); break;
- case 0x03: handle_104f03(regs); break;
- case 0x04: handle_104f04(regs); break;
- case 0x05: handle_104f05(regs); break;
- case 0x06: handle_104f06(regs); break;
- case 0x07: handle_104f07(regs); break;
- case 0x08: handle_104f08(regs); break;
- case 0x0a: handle_104f0a(regs); break;
- default: handle_104fXX(regs); break;
- }
-}
-
-
-static void
handle_10XX(struct bregs *regs)
{
debug_stub(regs);
diff --git a/vgasrc/vgabios.h b/vgasrc/vgabios.h
index 913dd88..568e276 100644
--- a/vgasrc/vgabios.h
+++ b/vgasrc/vgabios.h
@@ -222,4 +222,7 @@ struct vbe_modeinfo
u32 vram_size;
};
+struct bregs;
+void handle_104f(struct bregs *regs);
+
#endif // vgabios.h
--
1.7.6.4
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