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-rw-r--r--vgasrc/stdvga.h1
-rw-r--r--vgasrc/vgabios.c18
-rw-r--r--vgasrc/vgabios.h19
-rw-r--r--vgasrc/vgatables.c152
4 files changed, 91 insertions, 99 deletions
diff --git a/vgasrc/stdvga.h b/vgasrc/stdvga.h
index abda6069..0beb3450 100644
--- a/vgasrc/stdvga.h
+++ b/vgasrc/stdvga.h
@@ -84,6 +84,7 @@ struct saveDACcolors {
// vgatables.c
struct vgamode_s *stdvga_find_mode(int mode);
+void stdvga_build_video_param(void);
// stdvgaio.c
u8 stdvga_pelmask_read(void);
diff --git a/vgasrc/vgabios.c b/vgasrc/vgabios.c
index cd39cf13..449f3c40 100644
--- a/vgasrc/vgabios.c
+++ b/vgasrc/vgabios.c
@@ -25,6 +25,20 @@
#define DEBUG_VGA_POST 1
#define DEBUG_VGA_10 3
+// Standard Video Save Pointer Table
+struct VideoSavePointer_s {
+ struct segoff_s videoparam;
+ struct segoff_s paramdynamicsave;
+ struct segoff_s textcharset;
+ struct segoff_s graphcharset;
+ struct segoff_s secsavepointer;
+ u8 reserved[8];
+} PACKED;
+
+static struct VideoSavePointer_s video_save_pointer_table VAR16;
+
+struct VideoParam_s video_param_table[29] VAR16;
+
/****************************************************************
* PCI Data
@@ -1229,7 +1243,9 @@ vga_post(struct bregs *regs)
init_bios_area();
- build_video_param();
+ SET_VGA(video_save_pointer_table.videoparam
+ , SEGOFF(get_global_seg(), (u32)video_param_table));
+ stdvga_build_video_param();
extern void entry_10(void);
SET_IVT(0x10, SEGOFF(get_global_seg(), (u32)entry_10));
diff --git a/vgasrc/vgabios.h b/vgasrc/vgabios.h
index 3f86146d..a10198d3 100644
--- a/vgasrc/vgabios.h
+++ b/vgasrc/vgabios.h
@@ -4,6 +4,21 @@
#include "types.h" // u8
#include "farptr.h" // struct segoff_s
+// standard BIOS Video Parameter Table
+struct VideoParam_s {
+ u8 twidth;
+ u8 theightm1;
+ u8 cheight;
+ u16 slength;
+ u8 sequ_regs[4];
+ u8 miscreg;
+ u8 crtc_regs[25];
+ u8 actl_regs[20];
+ u8 grdc_regs[9];
+} PACKED;
+
+extern struct VideoParam_s video_param_table[29];
+
struct saveBDAstate {
u8 video_mode;
u16 video_cols;
@@ -50,10 +65,6 @@ struct vgamode_s {
u16 sstart;
};
-// vgatables.c
-void build_video_param(void);
-extern struct VideoSavePointer_s video_save_pointer_table;
-
// vgafonts.c
extern u8 vgafont8[];
extern u8 vgafont14[];
diff --git a/vgasrc/vgatables.c b/vgasrc/vgatables.c
index 11e20e4e..4a5350dc 100644
--- a/vgasrc/vgatables.c
+++ b/vgasrc/vgatables.c
@@ -8,97 +8,11 @@
#include "vgabios.h" // struct VideoParamTableEntry_s
#include "biosvar.h" // GET_GLOBAL
#include "util.h" // memcpy_far
-#include "stdvga.h" // struct vgamode_s
+#include "stdvga.h" // stdvga_find_mode
/****************************************************************
- * Video parameter table
- ****************************************************************/
-
-// Standard Video Save Pointer Table
-struct VideoSavePointer_s {
- struct segoff_s videoparam;
- struct segoff_s paramdynamicsave;
- struct segoff_s textcharset;
- struct segoff_s graphcharset;
- struct segoff_s secsavepointer;
- u8 reserved[8];
-} PACKED;
-
-struct VideoSavePointer_s video_save_pointer_table VAR16;
-
-// standard BIOS Video Parameter Table
-struct VideoParam_s {
- u8 twidth;
- u8 theightm1;
- u8 cheight;
- u16 slength;
- u8 sequ_regs[4];
- u8 miscreg;
- u8 crtc_regs[25];
- u8 actl_regs[20];
- u8 grdc_regs[9];
-} PACKED;
-
-struct VideoParam_s video_param_table[29] VAR16;
-
-void
-build_video_param(void)
-{
- static u8 parammodes[ARRAY_SIZE(video_param_table)] VAR16 = {
- 0, 0, 0, 0, 0x04, 0x05, 0x06, 0x07,
- 0, 0, 0, 0, 0, 0x0d, 0x0e, 0,
- 0, 0x0f, 0x10, 0, 0, 0, 0, 0x01,
- 0x03, 0x07, 0x11, 0x12, 0x13
- };
-
- int i;
- for (i=0; i<ARRAY_SIZE(parammodes); i++) {
- int mode = GET_GLOBAL(parammodes[i]);
- if (! mode)
- continue;
- struct VideoParam_s *vparam_g = &video_param_table[i];
- struct vgamode_s *vmode_g = stdvga_find_mode(mode);
- if (!vmode_g)
- continue;
- int width = GET_GLOBAL(vmode_g->width);
- int height = GET_GLOBAL(vmode_g->height);
- u8 memmodel = GET_GLOBAL(vmode_g->memmodel);
- int cheight = GET_GLOBAL(vmode_g->cheight);
- if (memmodel == MM_TEXT) {
- SET_VGA(vparam_g->twidth, width);
- SET_VGA(vparam_g->theightm1, height-1);
- } else {
- int cwidth = GET_GLOBAL(vmode_g->cwidth);
- SET_VGA(vparam_g->twidth, width / cwidth);
- SET_VGA(vparam_g->theightm1, (height / cheight) - 1);
- }
- SET_VGA(vparam_g->cheight, cheight);
- SET_VGA(vparam_g->slength, calc_page_size(memmodel, width, height));
- struct stdvga_mode_s *stdmode_g = container_of(
- vmode_g, struct stdvga_mode_s, info);
- memcpy_far(get_global_seg(), vparam_g->sequ_regs
- , get_global_seg(), GET_GLOBAL(stdmode_g->sequ_regs)
- , ARRAY_SIZE(vparam_g->sequ_regs));
- SET_VGA(vparam_g->miscreg, GET_GLOBAL(stdmode_g->miscreg));
- memcpy_far(get_global_seg(), vparam_g->crtc_regs
- , get_global_seg(), GET_GLOBAL(stdmode_g->crtc_regs)
- , ARRAY_SIZE(vparam_g->crtc_regs));
- memcpy_far(get_global_seg(), vparam_g->actl_regs
- , get_global_seg(), GET_GLOBAL(stdmode_g->actl_regs)
- , ARRAY_SIZE(vparam_g->actl_regs));
- memcpy_far(get_global_seg(), vparam_g->grdc_regs
- , get_global_seg(), GET_GLOBAL(stdmode_g->grdc_regs)
- , ARRAY_SIZE(vparam_g->grdc_regs));
- }
-
- SET_VGA(video_save_pointer_table.videoparam
- , SEGOFF(get_global_seg(), (u32)video_param_table));
-}
-
-
-/****************************************************************
- * Register definitions
+ * Video mode register definitions
****************************************************************/
/* Mono */
@@ -340,13 +254,7 @@ static u8 crtc_6A[] VAR16 = {
0x59, 0x8d, 0x57, 0x32, 0x00, 0x57, 0x73, 0xe3,
0xff };
-
-/****************************************************************
- * Video mode list
- ****************************************************************/
-
#define PAL(x) x, sizeof(x)
-#define VPARAM(x) &video_param_table[x]
static struct stdvga_mode_s vga_modes[] VAR16 = {
//mode { model tx ty bpp cw ch sstart }
@@ -385,6 +293,11 @@ static struct stdvga_mode_s vga_modes[] VAR16 = {
, 0xFF, PAL(palette2), sequ_0e, 0xe3, crtc_6A, actl_10, grdc_0d},
};
+
+/****************************************************************
+ * Mode functions
+ ****************************************************************/
+
struct vgamode_s *
stdvga_find_mode(int mode)
{
@@ -396,3 +309,54 @@ stdvga_find_mode(int mode)
}
return NULL;
}
+
+void
+stdvga_build_video_param(void)
+{
+ static u8 parammodes[] VAR16 = {
+ 0, 0, 0, 0, 0x04, 0x05, 0x06, 0x07,
+ 0, 0, 0, 0, 0, 0x0d, 0x0e, 0,
+ 0, 0x0f, 0x10, 0, 0, 0, 0, 0x01,
+ 0x03, 0x07, 0x11, 0x12, 0x13
+ };
+
+ int i;
+ for (i=0; i<ARRAY_SIZE(parammodes); i++) {
+ int mode = GET_GLOBAL(parammodes[i]);
+ if (! mode)
+ continue;
+ struct VideoParam_s *vparam_g = &video_param_table[i];
+ struct vgamode_s *vmode_g = stdvga_find_mode(mode);
+ if (!vmode_g)
+ continue;
+ int width = GET_GLOBAL(vmode_g->width);
+ int height = GET_GLOBAL(vmode_g->height);
+ u8 memmodel = GET_GLOBAL(vmode_g->memmodel);
+ int cheight = GET_GLOBAL(vmode_g->cheight);
+ if (memmodel == MM_TEXT) {
+ SET_VGA(vparam_g->twidth, width);
+ SET_VGA(vparam_g->theightm1, height-1);
+ } else {
+ int cwidth = GET_GLOBAL(vmode_g->cwidth);
+ SET_VGA(vparam_g->twidth, width / cwidth);
+ SET_VGA(vparam_g->theightm1, (height / cheight) - 1);
+ }
+ SET_VGA(vparam_g->cheight, cheight);
+ SET_VGA(vparam_g->slength, calc_page_size(memmodel, width, height));
+ struct stdvga_mode_s *stdmode_g = container_of(
+ vmode_g, struct stdvga_mode_s, info);
+ memcpy_far(get_global_seg(), vparam_g->sequ_regs
+ , get_global_seg(), GET_GLOBAL(stdmode_g->sequ_regs)
+ , ARRAY_SIZE(vparam_g->sequ_regs));
+ SET_VGA(vparam_g->miscreg, GET_GLOBAL(stdmode_g->miscreg));
+ memcpy_far(get_global_seg(), vparam_g->crtc_regs
+ , get_global_seg(), GET_GLOBAL(stdmode_g->crtc_regs)
+ , ARRAY_SIZE(vparam_g->crtc_regs));
+ memcpy_far(get_global_seg(), vparam_g->actl_regs
+ , get_global_seg(), GET_GLOBAL(stdmode_g->actl_regs)
+ , ARRAY_SIZE(vparam_g->actl_regs));
+ memcpy_far(get_global_seg(), vparam_g->grdc_regs
+ , get_global_seg(), GET_GLOBAL(stdmode_g->grdc_regs)
+ , ARRAY_SIZE(vparam_g->grdc_regs));
+ }
+}
generated by cgit (git 2.34.1) at 2025-02-24 06:28:31 +0000