/****************************************************************
- * tables
+ * Cirrus mode tables
****************************************************************/
/* VGA */
};
struct cirrus_mode_s {
- u16 mode;
+ u16 mode, vesamode;
struct vgamode_s info;
u16 hidden_dac; /* 0x3c6 */
};
static struct cirrus_mode_s cirrus_modes[] VAR16 = {
- {0x5f,{MM_PACKED,640,480,8,8,16,SEG_GRAPH},0x00,
+ {0x5f,0x101,{MM_PACKED,640,480,8,8,16,SEG_GRAPH},0x00,
cseq_640x480x8,cgraph_svgacolor,ccrtc_640x480x8},
- {0x64,{MM_DIRECT,640,480,16,8,16,SEG_GRAPH},0xe1,
+ {0x64,0x111,{MM_DIRECT,640,480,16,8,16,SEG_GRAPH},0xe1,
cseq_640x480x16,cgraph_svgacolor,ccrtc_640x480x16},
- {0x66,{MM_DIRECT,640,480,15,8,16,SEG_GRAPH},0xf0,
+ {0x66,0x110,{MM_DIRECT,640,480,15,8,16,SEG_GRAPH},0xf0,
cseq_640x480x16,cgraph_svgacolor,ccrtc_640x480x16},
- {0x71,{MM_DIRECT,640,480,24,8,16,SEG_GRAPH},0xe5,
+ {0x71,0x112,{MM_DIRECT,640,480,24,8,16,SEG_GRAPH},0xe5,
cseq_640x480x24,cgraph_svgacolor,ccrtc_640x480x24},
- {0x5c,{MM_PACKED,800,600,8,8,16,SEG_GRAPH},0x00,
+ {0x5c,0x103,{MM_PACKED,800,600,8,8,16,SEG_GRAPH},0x00,
cseq_800x600x8,cgraph_svgacolor,ccrtc_800x600x8},
- {0x65,{MM_DIRECT,800,600,16,8,16,SEG_GRAPH},0xe1,
+ {0x65,0x114,{MM_DIRECT,800,600,16,8,16,SEG_GRAPH},0xe1,
cseq_800x600x16,cgraph_svgacolor,ccrtc_800x600x16},
- {0x67,{MM_DIRECT,800,600,15,8,16,SEG_GRAPH},0xf0,
+ {0x67,0x113,{MM_DIRECT,800,600,15,8,16,SEG_GRAPH},0xf0,
cseq_800x600x16,cgraph_svgacolor,ccrtc_800x600x16},
- {0x60,{MM_PACKED,1024,768,8,8,16,SEG_GRAPH},0x00,
+ {0x60,0x105,{MM_PACKED,1024,768,8,8,16,SEG_GRAPH},0x00,
cseq_1024x768x8,cgraph_svgacolor,ccrtc_1024x768x8},
- {0x74,{MM_DIRECT,1024,768,16,8,16,SEG_GRAPH},0xe1,
+ {0x74,0x117,{MM_DIRECT,1024,768,16,8,16,SEG_GRAPH},0xe1,
cseq_1024x768x16,cgraph_svgacolor,ccrtc_1024x768x16},
- {0x68,{MM_DIRECT,1024,768,15,8,16,SEG_GRAPH},0xf0,
+ {0x68,0x116,{MM_DIRECT,1024,768,15,8,16,SEG_GRAPH},0xf0,
cseq_1024x768x16,cgraph_svgacolor,ccrtc_1024x768x16},
- {0x78,{MM_DIRECT,800,600,24,8,16,SEG_GRAPH},0xe5,
+ {0x78,0x115,{MM_DIRECT,800,600,24,8,16,SEG_GRAPH},0xe5,
cseq_800x600x24,cgraph_svgacolor,ccrtc_800x600x24},
- {0x79,{MM_DIRECT,1024,768,24,8,16,SEG_GRAPH},0xe5,
+ {0x79,0x118,{MM_DIRECT,1024,768,24,8,16,SEG_GRAPH},0xe5,
cseq_1024x768x24,cgraph_svgacolor,ccrtc_1024x768x24},
- {0x6d,{MM_PACKED,1280,1024,8,8,16,SEG_GRAPH},0x00,
+ {0x6d,0x107,{MM_PACKED,1280,1024,8,8,16,SEG_GRAPH},0x00,
cseq_1280x1024x8,cgraph_svgacolor,ccrtc_1280x1024x8},
- {0x69,{MM_DIRECT,1280,1024,15,8,16,SEG_GRAPH},0xf0,
+ {0x69,0x119,{MM_DIRECT,1280,1024,15,8,16,SEG_GRAPH},0xf0,
cseq_1280x1024x16,cgraph_svgacolor,ccrtc_1280x1024x16},
- {0x75,{MM_DIRECT,1280,1024,16,8,16,SEG_GRAPH},0xe1,
+ {0x75,0x11a,{MM_DIRECT,1280,1024,16,8,16,SEG_GRAPH},0xe1,
cseq_1280x1024x16,cgraph_svgacolor,ccrtc_1280x1024x16},
- {0x7b,{MM_PACKED,1600,1200,8,8,16,SEG_GRAPH},0x00,
+ {0x7b,0xffff,{MM_PACKED,1600,1200,8,8,16,SEG_GRAPH},0x00,
cseq_1600x1200x8,cgraph_svgacolor,ccrtc_1600x1200x8},
};
static struct cirrus_mode_s mode_switchback VAR16 =
- {0xfe,{0xff},0,cseq_vga,cgraph_vga,ccrtc_vga};
-
-static struct {
- u16 vesamode, mode;
-} cirrus_vesa_modelist[] VAR16 = {
- // 640x480x8
- { 0x101, 0x5f },
- // 640x480x15
- { 0x110, 0x66 },
- // 640x480x16
- { 0x111, 0x64 },
- // 640x480x24
- { 0x112, 0x71 },
- // 800x600x8
- { 0x103, 0x5c },
- // 800x600x15
- { 0x113, 0x67 },
- // 800x600x16
- { 0x114, 0x65 },
- // 800x600x24
- { 0x115, 0x78 },
- // 1024x768x8
- { 0x105, 0x60 },
- // 1024x768x15
- { 0x116, 0x68 },
- // 1024x768x16
- { 0x117, 0x74 },
- // 1024x768x24
- { 0x118, 0x79 },
- // 1280x1024x8
- { 0x107, 0x6d },
- // 1280x1024x15
- { 0x119, 0x69 },
- // 1280x1024x16
- { 0x11a, 0x75 },
-};
+ {0xfe,0xffff,{0xff},0,cseq_vga,cgraph_vga,ccrtc_vga};
+
+int
+is_cirrus_mode(struct vgamode_s *vmode_g)
+{
+ return (vmode_g >= &cirrus_modes[0].info
+ && vmode_g <= &cirrus_modes[ARRAY_SIZE(cirrus_modes)-1].info);
+}
+
+struct vgamode_s *
+clext_find_mode(int mode)
+{
+ struct cirrus_mode_s *table_g = cirrus_modes;
+ while (table_g < &cirrus_modes[ARRAY_SIZE(cirrus_modes)]) {
+ if (GET_GLOBAL(table_g->mode) == mode
+ || GET_GLOBAL(table_g->vesamode) == mode)
+ return &table_g->info;
+ table_g++;
+ }
+ return stdvga_find_mode(mode);
+}
+
+void
+clext_list_modes(u16 seg, u16 *dest, u16 *last)
+{
+ int i;
+ for (i=0; i<ARRAY_SIZE(cirrus_modes) && dest<last; i++) {
+ u16 mode = GET_GLOBAL(cirrus_modes[i].vesamode);
+ if (mode == 0xffff)
+ continue;
+ SET_FARVAR(seg, *dest, mode);
+ dest++;
+ }
+ stdvga_list_modes(seg, dest, last);
+}
/****************************************************************
****************************************************************/
int
-is_cirrus_mode(struct vgamode_s *vmode_g)
+clext_get_window(struct vgamode_s *vmode_g, int window)
{
- return (vmode_g >= &cirrus_modes[0].info
- && vmode_g <= &cirrus_modes[ARRAY_SIZE(cirrus_modes)-1].info);
+ return stdvga_grdc_read(window + 9);
}
-static u16
-cirrus_vesamode_to_mode(u16 vesamode)
+int
+clext_set_window(struct vgamode_s *vmode_g, int window, int val)
{
- int i;
- for (i=0; i<ARRAY_SIZE(cirrus_vesa_modelist); i++)
- if (GET_GLOBAL(cirrus_vesa_modelist[i].vesamode) == vesamode)
- return GET_GLOBAL(cirrus_vesa_modelist[i].mode);
+ if (val >= 0x100)
+ return -1;
+ stdvga_grdc_write(window + 9, val);
return 0;
}
-static struct cirrus_mode_s *
-cirrus_get_modeentry(int mode)
+int
+clext_get_linelength(struct vgamode_s *vmode_g)
{
- int transmode = cirrus_vesamode_to_mode(mode);
- if (transmode)
- mode = transmode;
- struct cirrus_mode_s *table_g = cirrus_modes;
- while (table_g < &cirrus_modes[ARRAY_SIZE(cirrus_modes)]) {
- u16 tmode = GET_GLOBAL(table_g->mode);
- if (tmode == mode)
- return table_g;
- table_g++;
- }
- return NULL;
+ u16 crtc_addr = stdvga_get_crtc();
+ u8 reg13 = stdvga_crtc_read(crtc_addr, 0x13);
+ u8 reg1b = stdvga_crtc_read(crtc_addr, 0x1b);
+ return (((reg1b & 0x10) << 4) + reg13) * stdvga_bpp_factor(vmode_g) * 2;
}
-struct vgamode_s *
-clext_find_mode(int mode)
+int
+clext_set_linelength(struct vgamode_s *vmode_g, int val)
{
- struct cirrus_mode_s *table_g = cirrus_get_modeentry(mode);
- if (table_g)
- return &table_g->info;
- return stdvga_find_mode(mode);
+ u16 crtc_addr = stdvga_get_crtc();
+ int factor = stdvga_bpp_factor(vmode_g) * 2;
+ int new_line_offset = DIV_ROUND_UP(val, factor);
+ stdvga_crtc_write(crtc_addr, 0x13, new_line_offset);
+ stdvga_crtc_mask(crtc_addr, 0x1b, 0x10, (new_line_offset & 0x100) >> 4);
+ return 0;
+}
+
+int
+clext_get_displaystart(struct vgamode_s *vmode_g)
+{
+ u16 crtc_addr = stdvga_get_crtc();
+ u8 b2 = stdvga_crtc_read(crtc_addr, 0x0c);
+ u8 b1 = stdvga_crtc_read(crtc_addr, 0x0d);
+ u8 b3 = stdvga_crtc_read(crtc_addr, 0x1b);
+ u8 b4 = stdvga_crtc_read(crtc_addr, 0x1d);
+ int val = (b1 | (b2<<8) | ((b3 & 0x01) << 16) | ((b3 & 0x0c) << 15)
+ | ((b4 & 0x80) << 12));
+ return val * stdvga_bpp_factor(vmode_g);
+}
+
+int
+clext_set_displaystart(struct vgamode_s *vmode_g, int val)
+{
+ u16 crtc_addr = stdvga_get_crtc();
+ val /= stdvga_bpp_factor(vmode_g);
+ stdvga_crtc_write(crtc_addr, 0x0d, val);
+ stdvga_crtc_write(crtc_addr, 0x0c, val >> 8);
+ stdvga_crtc_mask(crtc_addr, 0x1d, 0x80, (val & 0x0800) >> 4);
+ stdvga_crtc_mask(crtc_addr, 0x1b, 0x0d
+ , ((val & 0x0100) >> 8) | ((val & 0x0600) >> 7));
+ return 0;
}
+
+/****************************************************************
+ * Mode setting
+ ****************************************************************/
+
static void
cirrus_switch_mode_setregs(u16 *data, u16 port)
{
stdvga_attr_mask(0x10, 0x01, on);
}
-static u8
-cirrus_get_memsize(void)
-{
- // get DRAM band width
- u8 v = stdvga_sequ_read(0x0f);
- u8 x = (v >> 3) & 0x03;
- if (x == 0x03 && v & 0x80)
- // 4MB
- return 0x40;
- return 0x04 << x;
-}
-
-int
-clext_get_window(struct vgamode_s *vmode_g, int window)
-{
- return stdvga_grdc_read(window + 9);
-}
-
-int
-clext_set_window(struct vgamode_s *vmode_g, int window, int val)
-{
- if (val >= 0x100)
- return -1;
- stdvga_grdc_write(window + 9, val);
- return 0;
-}
-
-int
-clext_get_linelength(struct vgamode_s *vmode_g)
-{
- u16 crtc_addr = stdvga_get_crtc();
- u8 reg13 = stdvga_crtc_read(crtc_addr, 0x13);
- u8 reg1b = stdvga_crtc_read(crtc_addr, 0x1b);
- return (((reg1b & 0x10) << 4) + reg13) * stdvga_bpp_factor(vmode_g) * 2;
-}
-
-int
-clext_set_linelength(struct vgamode_s *vmode_g, int val)
-{
- u16 crtc_addr = stdvga_get_crtc();
- int factor = stdvga_bpp_factor(vmode_g) * 2;
- int new_line_offset = DIV_ROUND_UP(val, factor);
- stdvga_crtc_write(crtc_addr, 0x13, new_line_offset);
- stdvga_crtc_mask(crtc_addr, 0x1b, 0x10, (new_line_offset & 0x100) >> 4);
- return 0;
-}
-
static void
cirrus_enable_16k_granularity(void)
{
}
static void
-cirrus_clear_vram(u16 param)
+cirrus_clear_vram(void)
{
cirrus_enable_16k_granularity();
u8 count = GET_GLOBAL(VBE_total_memory) / (16 * 1024);
u8 i;
for (i=0; i<count; i++) {
stdvga_grdc_write(0x09, i);
- memset16_far(SEG_GRAPH, 0, param, 16 * 1024);
+ memset16_far(SEG_GRAPH, 0, 0, 16 * 1024);
}
stdvga_grdc_write(0x09, 0x00);
}
if (!(flags & MF_LINEARFB))
cirrus_enable_16k_granularity();
if (!(flags & MF_NOCLEARMEM))
- cirrus_clear_vram(0);
+ cirrus_clear_vram();
return 0;
}
-static int
-cirrus_check(void)
-{
- stdvga_sequ_write(0x06, 0x92);
- return stdvga_sequ_read(0x06) == 0x12;
-}
-
/****************************************************************
* extbios
static void
clext_1012a0(struct bregs *regs)
{
- struct cirrus_mode_s *table_g = cirrus_get_modeentry(regs->al & 0x7f);
+ struct vgamode_s *table_g = clext_find_mode(regs->al & 0x7f);
regs->ah = (table_g ? 1 : 0);
regs->si = 0xffff;
regs->di = regs->ds = regs->es = regs->bx = (u32)a0h_callback;
/****************************************************************
- * vesa calls
+ * init
****************************************************************/
-void
-clext_list_modes(u16 seg, u16 *dest, u16 *last)
+static int
+cirrus_check(void)
{
- int i;
- for (i=0; i<ARRAY_SIZE(cirrus_vesa_modelist) && dest<last; i++) {
- SET_FARVAR(seg, *dest, GET_GLOBAL(cirrus_vesa_modelist[i].vesamode));
- dest++;
- }
- stdvga_list_modes(seg, dest, last);
+ stdvga_sequ_write(0x06, 0x92);
+ return stdvga_sequ_read(0x06) == 0x12;
}
static u8
-cirrus_get_bpp_bytes(void)
-{
- u8 v = stdvga_sequ_read(0x07) & 0x0e;
- if (v == 0x06)
- v &= 0x02;
- v >>= 1;
- if (v != 0x04)
- v++;
- return v;
-}
-
-static u16
-cirrus_get_line_offset(void)
-{
- u16 crtc_addr = stdvga_get_crtc();
- u8 reg13 = stdvga_crtc_read(crtc_addr, 0x13);
- u8 reg1b = stdvga_crtc_read(crtc_addr, 0x1b);
- return (((reg1b & 0x10) << 4) + reg13) * 8;
-}
-
-static void
-cirrus_set_start_addr(u32 addr)
-{
- u16 crtc_addr = stdvga_get_crtc();
- stdvga_crtc_write(crtc_addr, 0x0d, addr);
- stdvga_crtc_write(crtc_addr, 0x0c, addr >> 8);
- stdvga_crtc_mask(crtc_addr, 0x1d, 0x80, (addr & 0x0800) >> 4);
- stdvga_crtc_mask(crtc_addr, 0x1b, 0x0d
- , ((addr & 0x0100) >> 8) | ((addr & 0x0600) >> 7));
-}
-
-static u32
-cirrus_get_start_addr(void)
-{
- u16 crtc_addr = stdvga_get_crtc();
- u8 b2 = stdvga_crtc_read(crtc_addr, 0x0c);
- u8 b1 = stdvga_crtc_read(crtc_addr, 0x0d);
- u8 b3 = stdvga_crtc_read(crtc_addr, 0x1b);
- u8 b4 = stdvga_crtc_read(crtc_addr, 0x1d);
- return (b1 | (b2<<8) | ((b3 & 0x01) << 16) | ((b3 & 0x0c) << 15)
- | ((b4 & 0x80) << 12));
-}
-
-static void
-cirrus_vesa_07h(struct bregs *regs)
-{
- if (regs->bl == 0x80 || regs->bl == 0x00) {
- u32 addr = (cirrus_get_bpp_bytes() * regs->cx
- + cirrus_get_line_offset() * regs->dx);
- cirrus_set_start_addr(addr / 4);
- } else if (regs->bl == 0x01) {
- u32 addr = cirrus_get_start_addr() * 4;
- u32 linelength = cirrus_get_line_offset();
- regs->dx = addr / linelength;
- regs->cx = (addr % linelength) / cirrus_get_bpp_bytes();
- } else {
- regs->ax = 0x0100;
- return;
- }
-
- regs->ax = 0x004f;
-}
-
-static void
-cirrus_vesa_10h(struct bregs *regs)
-{
- if (regs->bl == 0x00) {
- regs->bx = 0x0f30;
- regs->ax = 0x004f;
- return;
- }
- if (regs->bl == 0x01) {
- SET_BDA(vbe_flag, regs->bh);
- regs->ax = 0x004f;
- return;
- }
- if (regs->bl == 0x02) {
- regs->bh = GET_BDA(vbe_flag);
- regs->ax = 0x004f;
- return;
- }
- regs->ax = 0x014f;
-}
-
-static void
-cirrus_vesa_not_handled(struct bregs *regs)
-{
- debug_stub(regs);
- regs->ax = 0x014f;
-}
-
-void
-cirrus_vesa(struct bregs *regs)
+cirrus_get_memsize(void)
{
- switch (regs->al) {
- case 0x07: cirrus_vesa_07h(regs); break;
- case 0x10: cirrus_vesa_10h(regs); break;
- default: cirrus_vesa_not_handled(regs); break;
- }
+ // get DRAM band width
+ u8 v = stdvga_sequ_read(0x0f);
+ u8 x = (v >> 3) & 0x03;
+ if (x == 0x03 && v & 0x80)
+ // 4MB
+ return 0x40;
+ return 0x04 << x;
}
-
-/****************************************************************
- * init
- ****************************************************************/
-
int
clext_init(void)
{
projects / seabios.git / blobdiff