Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1 | // VGA bios implementation |
| 2 | // |
| 3 | // Copyright (C) 2009 Kevin O'Connor <kevin@koconnor.net> |
| 4 | // Copyright (C) 2001-2008 the LGPL VGABios developers Team |
| 5 | // |
| 6 | // This file may be distributed under the terms of the GNU LGPLv3 license. |
| 7 | |
| 8 | |
| 9 | // TODO: |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 10 | // * define structs for save/restore state |
| 11 | // * review correctness of converted asm by comparing with RBIL |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 12 | // * refactor redundant code into sub-functions |
| 13 | // * See if there is a method to the in/out stuff that can be encapsulated. |
| 14 | // * remove "biosfn" prefixes |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 15 | // * verify all funcs static |
| 16 | // |
Kevin O'Connor | 6ace78f | 2009-05-14 19:24:49 -0400 | [diff] [blame] | 17 | // * convert vbe/clext code |
| 18 | // |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 19 | // * separate code into separate files |
| 20 | // * extract hw code from bios interfaces |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 21 | |
| 22 | #include "bregs.h" // struct bregs |
| 23 | #include "biosvar.h" // GET_BDA |
| 24 | #include "util.h" // memset |
Kevin O'Connor | c0c7df6 | 2009-05-17 18:11:33 -0400 | [diff] [blame^] | 25 | #include "vgatables.h" // find_vga_entry |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 26 | |
| 27 | // XXX |
| 28 | #define CONFIG_VBE 0 |
| 29 | #define CONFIG_CIRRUS 0 |
| 30 | |
| 31 | // XXX |
| 32 | #define DEBUG_VGA_POST 1 |
| 33 | #define DEBUG_VGA_10 3 |
| 34 | |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 35 | #define SET_VGA(var, val) SET_FARVAR(get_global_seg(), (var), (val)) |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 36 | |
| 37 | |
| 38 | // =================================================================== |
| 39 | // |
| 40 | // Video Utils |
| 41 | // |
| 42 | // =================================================================== |
| 43 | |
| 44 | // ------------------------------------------------------------------- |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 45 | inline void |
| 46 | call16_vgaint(u32 eax, u32 ebx) |
| 47 | { |
| 48 | asm volatile( |
| 49 | "int $0x10\n" |
| 50 | "cli\n" |
| 51 | "cld" |
| 52 | : |
| 53 | : "a"(eax), "b"(ebx) |
| 54 | : "cc", "memory"); |
| 55 | } |
| 56 | |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 57 | |
| 58 | // =================================================================== |
| 59 | // |
| 60 | // BIOS functions |
| 61 | // |
| 62 | // =================================================================== |
| 63 | |
| 64 | // ------------------------------------------------------------------- |
| 65 | static void |
| 66 | biosfn_perform_gray_scale_summing(u16 start, u16 count) |
| 67 | { |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 68 | inb(VGAREG_ACTL_RESET); |
| 69 | outb(0x00, VGAREG_ACTL_ADDRESS); |
| 70 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 71 | int i; |
| 72 | for (i = start; i < start+count; i++) { |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 73 | // set read address and switch to read mode |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 74 | outb(i, VGAREG_DAC_READ_ADDRESS); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 75 | // get 6-bit wide RGB data values |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 76 | u8 r = inb(VGAREG_DAC_DATA); |
| 77 | u8 g = inb(VGAREG_DAC_DATA); |
| 78 | u8 b = inb(VGAREG_DAC_DATA); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 79 | |
| 80 | // intensity = ( 0.3 * Red ) + ( 0.59 * Green ) + ( 0.11 * Blue ) |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 81 | u16 intensity = ((77 * r + 151 * g + 28 * b) + 0x80) >> 8; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 82 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 83 | if (intensity > 0x3f) |
| 84 | intensity = 0x3f; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 85 | |
| 86 | // set write address and switch to write mode |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 87 | outb(i, VGAREG_DAC_WRITE_ADDRESS); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 88 | // write new intensity value |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 89 | outb(intensity & 0xff, VGAREG_DAC_DATA); |
| 90 | outb(intensity & 0xff, VGAREG_DAC_DATA); |
| 91 | outb(intensity & 0xff, VGAREG_DAC_DATA); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 92 | } |
| 93 | inb(VGAREG_ACTL_RESET); |
| 94 | outb(0x20, VGAREG_ACTL_ADDRESS); |
| 95 | } |
| 96 | |
| 97 | // ------------------------------------------------------------------- |
| 98 | static void |
| 99 | biosfn_set_cursor_shape(u8 CH, u8 CL) |
| 100 | { |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 101 | CH &= 0x3f; |
| 102 | CL &= 0x1f; |
| 103 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 104 | u16 curs = (CH << 8) + CL; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 105 | SET_BDA(cursor_type, curs); |
| 106 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 107 | u8 modeset_ctl = GET_BDA(modeset_ctl); |
| 108 | u16 cheight = GET_BDA(char_height); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 109 | if ((modeset_ctl & 0x01) && (cheight > 8) && (CL < 8) && (CH < 0x20)) { |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 110 | if (CL != (CH + 1)) |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 111 | CH = ((CH + 1) * cheight / 8) - 1; |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 112 | else |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 113 | CH = ((CL + 1) * cheight / 8) - 2; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 114 | CL = ((CL + 1) * cheight / 8) - 1; |
| 115 | } |
| 116 | // CTRC regs 0x0a and 0x0b |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 117 | u16 crtc_addr = GET_BDA(crtc_address); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 118 | outb(0x0a, crtc_addr); |
| 119 | outb(CH, crtc_addr + 1); |
| 120 | outb(0x0b, crtc_addr); |
| 121 | outb(CL, crtc_addr + 1); |
| 122 | } |
| 123 | |
Kevin O'Connor | 0818e1a | 2009-05-16 18:00:19 -0400 | [diff] [blame] | 124 | static u16 |
| 125 | biosfn_get_cursor_shape(u8 page) |
| 126 | { |
| 127 | if (page > 7) |
| 128 | return 0; |
| 129 | // FIXME should handle VGA 14/16 lines |
| 130 | return GET_BDA(cursor_type); |
| 131 | } |
| 132 | |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 133 | // ------------------------------------------------------------------- |
| 134 | static void |
| 135 | biosfn_set_cursor_pos(u8 page, u16 cursor) |
| 136 | { |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 137 | // Should not happen... |
| 138 | if (page > 7) |
| 139 | return; |
| 140 | |
| 141 | // Bios cursor pos |
| 142 | SET_BDA(cursor_pos[page], cursor); |
| 143 | |
| 144 | // Set the hardware cursor |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 145 | u8 current = GET_BDA(video_page); |
| 146 | if (page != current) |
| 147 | return; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 148 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 149 | // Get the dimensions |
| 150 | u16 nbcols = GET_BDA(video_cols); |
| 151 | u16 nbrows = GET_BDA(video_rows) + 1; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 152 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 153 | u8 xcurs = cursor & 0x00ff; |
| 154 | u8 ycurs = (cursor & 0xff00) >> 8; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 155 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 156 | // Calculate the address knowing nbcols nbrows and page num |
| 157 | u16 address = SCREEN_IO_START(nbcols, nbrows, page) + xcurs + ycurs * nbcols; |
| 158 | |
| 159 | // CRTC regs 0x0e and 0x0f |
| 160 | u16 crtc_addr = GET_BDA(crtc_address); |
| 161 | outb(0x0e, crtc_addr); |
| 162 | outb((address & 0xff00) >> 8, crtc_addr + 1); |
| 163 | outb(0x0f, crtc_addr); |
| 164 | outb(address & 0x00ff, crtc_addr + 1); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 165 | } |
| 166 | |
Kevin O'Connor | c0c7df6 | 2009-05-17 18:11:33 -0400 | [diff] [blame^] | 167 | u16 |
Kevin O'Connor | 0818e1a | 2009-05-16 18:00:19 -0400 | [diff] [blame] | 168 | biosfn_get_cursor_pos(u8 page) |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 169 | { |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 170 | if (page > 7) |
Kevin O'Connor | 0818e1a | 2009-05-16 18:00:19 -0400 | [diff] [blame] | 171 | return 0; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 172 | // FIXME should handle VGA 14/16 lines |
Kevin O'Connor | 0818e1a | 2009-05-16 18:00:19 -0400 | [diff] [blame] | 173 | return GET_BDA(cursor_pos[page]); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 174 | } |
| 175 | |
| 176 | // ------------------------------------------------------------------- |
| 177 | static void |
| 178 | biosfn_set_active_page(u8 page) |
| 179 | { |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 180 | if (page > 7) |
| 181 | return; |
| 182 | |
| 183 | // Get the mode |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 184 | struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode)); |
| 185 | if (!vmode_g) |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 186 | return; |
| 187 | |
| 188 | // Get pos curs pos for the right page |
Kevin O'Connor | 0818e1a | 2009-05-16 18:00:19 -0400 | [diff] [blame] | 189 | u16 cursor = biosfn_get_cursor_pos(page); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 190 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 191 | u16 address; |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 192 | if (GET_GLOBAL(vmode_g->class) == TEXT) { |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 193 | // Get the dimensions |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 194 | u16 nbcols = GET_BDA(video_cols); |
| 195 | u16 nbrows = GET_BDA(video_rows) + 1; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 196 | |
| 197 | // Calculate the address knowing nbcols nbrows and page num |
| 198 | address = SCREEN_MEM_START(nbcols, nbrows, page); |
| 199 | SET_BDA(video_pagestart, address); |
| 200 | |
| 201 | // Start address |
| 202 | address = SCREEN_IO_START(nbcols, nbrows, page); |
| 203 | } else { |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 204 | struct VideoParam_s *vparam_g = GET_GLOBAL(vmode_g->vparam); |
| 205 | address = page * GET_GLOBAL(vparam_g->slength); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 206 | } |
| 207 | |
| 208 | // CRTC regs 0x0c and 0x0d |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 209 | u16 crtc_addr = GET_BDA(crtc_address); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 210 | outb(0x0c, crtc_addr); |
| 211 | outb((address & 0xff00) >> 8, crtc_addr + 1); |
| 212 | outb(0x0d, crtc_addr); |
| 213 | outb(address & 0x00ff, crtc_addr + 1); |
| 214 | |
| 215 | // And change the BIOS page |
| 216 | SET_BDA(video_page, page); |
| 217 | |
Kevin O'Connor | a12c215 | 2009-05-13 22:06:16 -0400 | [diff] [blame] | 218 | dprintf(1, "Set active page %02x address %04x\n", page, address); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 219 | |
| 220 | // Display the cursor, now the page is active |
| 221 | biosfn_set_cursor_pos(page, cursor); |
| 222 | } |
| 223 | |
| 224 | static void |
| 225 | biosfn_set_video_mode(u8 mode) |
| 226 | { // mode: Bit 7 is 1 if no clear screen |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 227 | if (CONFIG_CIRRUS) |
| 228 | cirrus_set_video_mode(mode); |
| 229 | |
Kevin O'Connor | 21079f4 | 2009-05-16 21:30:10 -0400 | [diff] [blame] | 230 | if (CONFIG_VBE) |
| 231 | if (vbe_has_vbe_display()) |
| 232 | dispi_set_enable(VBE_DISPI_DISABLED); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 233 | |
| 234 | // The real mode |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 235 | u8 noclearmem = mode & 0x80; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 236 | mode = mode & 0x7f; |
| 237 | |
| 238 | // find the entry in the video modes |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 239 | struct vgamode_s *vmode_g = find_vga_entry(mode); |
| 240 | dprintf(1, "mode search %02x found %p\n", mode, vmode_g); |
| 241 | if (!vmode_g) |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 242 | return; |
| 243 | |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 244 | struct VideoParam_s *vparam_g = GET_GLOBAL(vmode_g->vparam); |
| 245 | u16 twidth = GET_GLOBAL(vparam_g->twidth); |
| 246 | u16 theightm1 = GET_GLOBAL(vparam_g->theightm1); |
| 247 | u16 cheight = GET_GLOBAL(vparam_g->cheight); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 248 | |
| 249 | // Read the bios mode set control |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 250 | u8 modeset_ctl = GET_BDA(modeset_ctl); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 251 | |
| 252 | // Then we know the number of lines |
| 253 | // FIXME |
| 254 | |
| 255 | // if palette loading (bit 3 of modeset ctl = 0) |
| 256 | if ((modeset_ctl & 0x08) == 0) { // Set the PEL mask |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 257 | outb(GET_GLOBAL(vmode_g->pelmask), VGAREG_PEL_MASK); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 258 | |
| 259 | // Set the whole dac always, from 0 |
| 260 | outb(0x00, VGAREG_DAC_WRITE_ADDRESS); |
| 261 | |
| 262 | // From which palette |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 263 | u8 *palette_g = GET_GLOBAL(vmode_g->dac); |
Kevin O'Connor | 3c3c831 | 2009-05-17 16:16:29 -0400 | [diff] [blame] | 264 | u16 palsize = GET_GLOBAL(vmode_g->dacsize) / 3; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 265 | // Always 256*3 values |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 266 | u16 i; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 267 | for (i = 0; i < 0x0100; i++) { |
Kevin O'Connor | 3c3c831 | 2009-05-17 16:16:29 -0400 | [diff] [blame] | 268 | if (i < palsize) { |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 269 | outb(GET_GLOBAL(palette_g[(i * 3) + 0]), VGAREG_DAC_DATA); |
| 270 | outb(GET_GLOBAL(palette_g[(i * 3) + 1]), VGAREG_DAC_DATA); |
| 271 | outb(GET_GLOBAL(palette_g[(i * 3) + 2]), VGAREG_DAC_DATA); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 272 | } else { |
| 273 | outb(0, VGAREG_DAC_DATA); |
| 274 | outb(0, VGAREG_DAC_DATA); |
| 275 | outb(0, VGAREG_DAC_DATA); |
| 276 | } |
| 277 | } |
| 278 | if ((modeset_ctl & 0x02) == 0x02) |
| 279 | biosfn_perform_gray_scale_summing(0x00, 0x100); |
| 280 | } |
| 281 | // Reset Attribute Ctl flip-flop |
| 282 | inb(VGAREG_ACTL_RESET); |
| 283 | |
| 284 | // Set Attribute Ctl |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 285 | u16 i; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 286 | for (i = 0; i <= 0x13; i++) { |
| 287 | outb(i, VGAREG_ACTL_ADDRESS); |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 288 | outb(GET_GLOBAL(vparam_g->actl_regs[i]), VGAREG_ACTL_WRITE_DATA); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 289 | } |
| 290 | outb(0x14, VGAREG_ACTL_ADDRESS); |
| 291 | outb(0x00, VGAREG_ACTL_WRITE_DATA); |
| 292 | |
| 293 | // Set Sequencer Ctl |
| 294 | outb(0, VGAREG_SEQU_ADDRESS); |
| 295 | outb(0x03, VGAREG_SEQU_DATA); |
| 296 | for (i = 1; i <= 4; i++) { |
| 297 | outb(i, VGAREG_SEQU_ADDRESS); |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 298 | outb(GET_GLOBAL(vparam_g->sequ_regs[i - 1]), VGAREG_SEQU_DATA); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 299 | } |
| 300 | |
| 301 | // Set Grafx Ctl |
| 302 | for (i = 0; i <= 8; i++) { |
| 303 | outb(i, VGAREG_GRDC_ADDRESS); |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 304 | outb(GET_GLOBAL(vparam_g->grdc_regs[i]), VGAREG_GRDC_DATA); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 305 | } |
| 306 | |
| 307 | // Set CRTC address VGA or MDA |
| 308 | u16 crtc_addr = VGAREG_VGA_CRTC_ADDRESS; |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 309 | if (GET_GLOBAL(vmode_g->memmodel) == MTEXT) |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 310 | crtc_addr = VGAREG_MDA_CRTC_ADDRESS; |
| 311 | |
| 312 | // Disable CRTC write protection |
| 313 | outw(0x0011, crtc_addr); |
| 314 | // Set CRTC regs |
| 315 | for (i = 0; i <= 0x18; i++) { |
| 316 | outb(i, crtc_addr); |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 317 | outb(GET_GLOBAL(vparam_g->crtc_regs[i]), crtc_addr + 1); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | // Set the misc register |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 321 | outb(GET_GLOBAL(vparam_g->miscreg), VGAREG_WRITE_MISC_OUTPUT); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 322 | |
| 323 | // Enable video |
| 324 | outb(0x20, VGAREG_ACTL_ADDRESS); |
| 325 | inb(VGAREG_ACTL_RESET); |
| 326 | |
| 327 | if (noclearmem == 0x00) { |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 328 | if (GET_GLOBAL(vmode_g->class) == TEXT) { |
| 329 | memset16_far(GET_GLOBAL(vmode_g->sstart), 0, 0x0720, 32*1024); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 330 | } else { |
| 331 | if (mode < 0x0d) { |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 332 | memset16_far(GET_GLOBAL(vmode_g->sstart), 0, 0x0000, 32*1024); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 333 | } else { |
| 334 | outb(0x02, VGAREG_SEQU_ADDRESS); |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 335 | u8 mmask = inb(VGAREG_SEQU_DATA); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 336 | outb(0x0f, VGAREG_SEQU_DATA); // all planes |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 337 | memset16_far(GET_GLOBAL(vmode_g->sstart), 0, 0x0000, 64*1024); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 338 | outb(mmask, VGAREG_SEQU_DATA); |
| 339 | } |
| 340 | } |
| 341 | } |
| 342 | // Set the BIOS mem |
| 343 | SET_BDA(video_mode, mode); |
| 344 | SET_BDA(video_cols, twidth); |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 345 | SET_BDA(video_pagesize, GET_GLOBAL(vparam_g->slength)); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 346 | SET_BDA(crtc_address, crtc_addr); |
| 347 | SET_BDA(video_rows, theightm1); |
| 348 | SET_BDA(char_height, cheight); |
| 349 | SET_BDA(video_ctl, (0x60 | noclearmem)); |
| 350 | SET_BDA(video_switches, 0xF9); |
| 351 | SET_BDA(modeset_ctl, GET_BDA(modeset_ctl) & 0x7f); |
| 352 | |
| 353 | // FIXME We nearly have the good tables. to be reworked |
| 354 | SET_BDA(dcc_index, 0x08); // 8 is VGA should be ok for now |
| 355 | SET_BDA(video_savetable_ptr, (u32)video_save_pointer_table); |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 356 | SET_BDA(video_savetable_seg, get_global_seg()); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 357 | |
| 358 | // FIXME |
| 359 | SET_BDA(video_msr, 0x00); // Unavailable on vanilla vga, but... |
| 360 | SET_BDA(video_pal, 0x00); // Unavailable on vanilla vga, but... |
| 361 | |
| 362 | // Set cursor shape |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 363 | if (GET_GLOBAL(vmode_g->class) == TEXT) |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 364 | biosfn_set_cursor_shape(0x06, 0x07); |
| 365 | // Set cursor pos for page 0..7 |
| 366 | for (i = 0; i < 8; i++) |
| 367 | biosfn_set_cursor_pos(i, 0x0000); |
| 368 | |
| 369 | // Set active page 0 |
| 370 | biosfn_set_active_page(0x00); |
| 371 | |
| 372 | // Write the fonts in memory |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 373 | if (GET_GLOBAL(vmode_g->class) == TEXT) { |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 374 | call16_vgaint(0x1104, 0); |
| 375 | call16_vgaint(0x1103, 0); |
| 376 | } |
| 377 | // Set the ints 0x1F and 0x43 |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 378 | SET_IVT(0x1f, get_global_seg(), (u32)&vgafont8[128 * 8]); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 379 | |
| 380 | switch (cheight) { |
| 381 | case 8: |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 382 | SET_IVT(0x43, get_global_seg(), (u32)vgafont8); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 383 | break; |
| 384 | case 14: |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 385 | SET_IVT(0x43, get_global_seg(), (u32)vgafont14); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 386 | break; |
| 387 | case 16: |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 388 | SET_IVT(0x43, get_global_seg(), (u32)vgafont16); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 389 | break; |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | // ------------------------------------------------------------------- |
| 394 | static void |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 395 | biosfn_write_teletype(u8 car, u8 page, u8 attr, u8 flag) |
| 396 | { // flag = WITH_ATTR / NO_ATTR |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 397 | // special case if page is 0xff, use current page |
| 398 | if (page == 0xff) |
| 399 | page = GET_BDA(video_page); |
| 400 | |
| 401 | // Get the mode |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 402 | struct vgamode_s *vmode_g = find_vga_entry(GET_BDA(video_mode)); |
| 403 | if (!vmode_g) |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 404 | return; |
| 405 | |
| 406 | // Get the cursor pos for the page |
Kevin O'Connor | 0818e1a | 2009-05-16 18:00:19 -0400 | [diff] [blame] | 407 | u16 cursor = biosfn_get_cursor_pos(page); |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 408 | u8 xcurs = cursor & 0x00ff; |
| 409 | u8 ycurs = (cursor & 0xff00) >> 8; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 410 | |
| 411 | // Get the dimensions |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 412 | u16 nbrows = GET_BDA(video_rows) + 1; |
| 413 | u16 nbcols = GET_BDA(video_cols); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 414 | |
| 415 | switch (car) { |
| 416 | case 7: |
| 417 | //FIXME should beep |
| 418 | break; |
| 419 | |
| 420 | case 8: |
| 421 | if (xcurs > 0) |
| 422 | xcurs--; |
| 423 | break; |
| 424 | |
| 425 | case '\r': |
| 426 | xcurs = 0; |
| 427 | break; |
| 428 | |
| 429 | case '\n': |
| 430 | ycurs++; |
| 431 | break; |
| 432 | |
| 433 | case '\t': |
| 434 | do { |
| 435 | biosfn_write_teletype(' ', page, attr, flag); |
Kevin O'Connor | 0818e1a | 2009-05-16 18:00:19 -0400 | [diff] [blame] | 436 | cursor = biosfn_get_cursor_pos(page); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 437 | xcurs = cursor & 0x00ff; |
| 438 | ycurs = (cursor & 0xff00) >> 8; |
| 439 | } while (xcurs % 8 == 0); |
| 440 | break; |
| 441 | |
| 442 | default: |
Kevin O'Connor | c0c7df6 | 2009-05-17 18:11:33 -0400 | [diff] [blame^] | 443 | if (flag == WITH_ATTR) |
| 444 | biosfn_write_char_attr(car, page, attr, 1); |
| 445 | else |
| 446 | biosfn_write_char_only(car, page, attr, 1); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 447 | xcurs++; |
| 448 | } |
| 449 | |
| 450 | // Do we need to wrap ? |
| 451 | if (xcurs == nbcols) { |
| 452 | xcurs = 0; |
| 453 | ycurs++; |
| 454 | } |
| 455 | // Do we need to scroll ? |
| 456 | if (ycurs == nbrows) { |
Kevin O'Connor | 5727c29 | 2009-05-16 17:29:32 -0400 | [diff] [blame] | 457 | if (GET_GLOBAL(vmode_g->class) == TEXT) |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 458 | biosfn_scroll(0x01, 0x07, 0, 0, nbrows - 1, nbcols - 1, page, |
| 459 | SCROLL_UP); |
| 460 | else |
| 461 | biosfn_scroll(0x01, 0x00, 0, 0, nbrows - 1, nbcols - 1, page, |
| 462 | SCROLL_UP); |
| 463 | ycurs -= 1; |
| 464 | } |
| 465 | // Set the cursor for the page |
| 466 | cursor = ycurs; |
| 467 | cursor <<= 8; |
| 468 | cursor += xcurs; |
| 469 | biosfn_set_cursor_pos(page, cursor); |
| 470 | } |
| 471 | |
| 472 | // ------------------------------------------------------------------- |
| 473 | static void |
| 474 | biosfn_get_video_mode(struct bregs *regs) |
| 475 | { |
| 476 | regs->bh = GET_BDA(video_page); |
| 477 | regs->al = GET_BDA(video_mode) | (GET_BDA(video_ctl) & 0x80); |
| 478 | regs->ah = GET_BDA(video_cols); |
| 479 | } |
| 480 | |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 481 | static void |
| 482 | set_scan_lines(u8 lines) |
| 483 | { |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 484 | u16 crtc_addr = GET_BDA(crtc_address); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 485 | outb(0x09, crtc_addr); |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 486 | u8 crtc_r9 = inb(crtc_addr + 1); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 487 | crtc_r9 = (crtc_r9 & 0xe0) | (lines - 1); |
| 488 | outb(crtc_r9, crtc_addr + 1); |
| 489 | if (lines == 8) |
| 490 | biosfn_set_cursor_shape(0x06, 0x07); |
| 491 | else |
| 492 | biosfn_set_cursor_shape(lines - 4, lines - 3); |
| 493 | SET_BDA(char_height, lines); |
| 494 | outb(0x12, crtc_addr); |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 495 | u16 vde = inb(crtc_addr + 1); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 496 | outb(0x07, crtc_addr); |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 497 | u8 ovl = inb(crtc_addr + 1); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 498 | vde += (((ovl & 0x02) << 7) + ((ovl & 0x40) << 3) + 1); |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 499 | u8 rows = vde / lines; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 500 | SET_BDA(video_rows, rows - 1); |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 501 | u16 cols = GET_BDA(video_cols); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 502 | SET_BDA(video_pagesize, rows * cols * 2); |
| 503 | } |
| 504 | |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 505 | // ------------------------------------------------------------------- |
| 506 | static void |
| 507 | biosfn_get_font_info(u8 BH, u16 *ES, u16 *BP, u16 *CX, u16 *DX) |
| 508 | { |
| 509 | switch (BH) { |
| 510 | case 0x00: { |
| 511 | u32 segoff = GET_IVT(0x1f).segoff; |
| 512 | *ES = segoff >> 16; |
| 513 | *BP = segoff; |
| 514 | break; |
| 515 | } |
| 516 | case 0x01: { |
| 517 | u32 segoff = GET_IVT(0x43).segoff; |
| 518 | *ES = segoff >> 16; |
| 519 | *BP = segoff; |
| 520 | break; |
| 521 | } |
| 522 | case 0x02: |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 523 | *ES = get_global_seg(); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 524 | *BP = (u32)vgafont14; |
| 525 | break; |
| 526 | case 0x03: |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 527 | *ES = get_global_seg(); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 528 | *BP = (u32)vgafont8; |
| 529 | break; |
| 530 | case 0x04: |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 531 | *ES = get_global_seg(); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 532 | *BP = (u32)vgafont8 + 128 * 8; |
| 533 | break; |
| 534 | case 0x05: |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 535 | *ES = get_global_seg(); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 536 | *BP = (u32)vgafont14alt; |
| 537 | break; |
| 538 | case 0x06: |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 539 | *ES = get_global_seg(); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 540 | *BP = (u32)vgafont16; |
| 541 | break; |
| 542 | case 0x07: |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 543 | *ES = get_global_seg(); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 544 | *BP = (u32)vgafont16alt; |
| 545 | break; |
| 546 | default: |
Kevin O'Connor | a12c215 | 2009-05-13 22:06:16 -0400 | [diff] [blame] | 547 | dprintf(1, "Get font info BH(%02x) was discarded\n", BH); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 548 | return; |
| 549 | } |
| 550 | // Set byte/char of on screen font |
| 551 | *CX = GET_BDA(char_height) & 0xff; |
| 552 | |
| 553 | // Set Highest char row |
| 554 | *DX = GET_BDA(video_rows); |
| 555 | } |
| 556 | |
| 557 | // ------------------------------------------------------------------- |
| 558 | static void |
| 559 | biosfn_get_ega_info(struct bregs *regs) |
| 560 | { |
| 561 | regs->cx = GET_BDA(video_switches) & 0x0f; |
| 562 | regs->ax = GET_BDA(crtc_address); |
| 563 | if (regs->ax == VGAREG_MDA_CRTC_ADDRESS) |
| 564 | regs->bx = 0x0103; |
| 565 | else |
| 566 | regs->bx = 0x0003; |
| 567 | } |
| 568 | |
| 569 | // ------------------------------------------------------------------- |
| 570 | static void |
| 571 | biosfn_select_vert_res(struct bregs *regs) |
| 572 | { |
| 573 | u8 mctl = GET_BDA(modeset_ctl); |
| 574 | u8 vswt = GET_BDA(video_switches); |
| 575 | |
| 576 | switch (regs->al) { |
| 577 | case 0x00: |
| 578 | // 200 lines |
| 579 | mctl = (mctl & ~0x10) | 0x80; |
| 580 | vswt = (vswt & ~0x0f) | 0x08; |
| 581 | break; |
| 582 | case 0x01: |
| 583 | // 350 lines |
| 584 | mctl &= ~0x90; |
| 585 | vswt = (vswt & ~0x0f) | 0x09; |
| 586 | break; |
| 587 | case 0x02: |
| 588 | // 400 lines |
| 589 | mctl = (mctl & ~0x80) | 0x10; |
| 590 | vswt = (vswt & ~0x0f) | 0x09; |
| 591 | break; |
| 592 | default: |
Kevin O'Connor | a12c215 | 2009-05-13 22:06:16 -0400 | [diff] [blame] | 593 | dprintf(1, "Select vert res (%02x) was discarded\n", regs->al); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 594 | break; |
| 595 | } |
| 596 | SET_BDA(modeset_ctl, mctl); |
| 597 | SET_BDA(video_switches, vswt); |
| 598 | regs->ax = 0x1212; |
| 599 | } |
| 600 | |
| 601 | static void |
| 602 | biosfn_enable_default_palette_loading(struct bregs *regs) |
| 603 | { |
| 604 | u8 v = (regs->al & 0x01) << 3; |
| 605 | u8 mctl = GET_BDA(video_ctl) & ~0x08; |
| 606 | SET_BDA(video_ctl, mctl | v); |
| 607 | regs->ax = 0x1212; |
| 608 | } |
| 609 | |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 610 | |
| 611 | static void |
| 612 | biosfn_enable_grayscale_summing(struct bregs *regs) |
| 613 | { |
| 614 | u8 v = ((regs->al << 1) & 0x02) ^ 0x02; |
| 615 | u8 v2 = GET_BDA(modeset_ctl) & ~0x02; |
| 616 | SET_BDA(modeset_ctl, v | v2); |
| 617 | regs->ax = 0x1212; |
| 618 | } |
| 619 | |
| 620 | static void |
| 621 | biosfn_enable_cursor_emulation(struct bregs *regs) |
| 622 | { |
| 623 | u8 v = (regs->al & 0x01) ^ 0x01; |
| 624 | u8 v2 = GET_BDA(modeset_ctl) & ~0x01; |
| 625 | SET_BDA(modeset_ctl, v | v2); |
| 626 | regs->ax = 0x1212; |
| 627 | } |
| 628 | |
| 629 | // ------------------------------------------------------------------- |
| 630 | static void |
| 631 | biosfn_write_string(u8 flag, u8 page, u8 attr, u16 count, u8 row, u8 col, |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 632 | u16 seg, u8 *offset_far) |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 633 | { |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 634 | // Read curs info for the page |
Kevin O'Connor | 0818e1a | 2009-05-16 18:00:19 -0400 | [diff] [blame] | 635 | u16 oldcurs = biosfn_get_cursor_pos(page); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 636 | |
| 637 | // if row=0xff special case : use current cursor position |
| 638 | if (row == 0xff) { |
| 639 | col = oldcurs & 0x00ff; |
| 640 | row = (oldcurs & 0xff00) >> 8; |
| 641 | } |
| 642 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 643 | u16 newcurs = row; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 644 | newcurs <<= 8; |
| 645 | newcurs += col; |
| 646 | biosfn_set_cursor_pos(page, newcurs); |
| 647 | |
| 648 | while (count-- != 0) { |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 649 | u8 car = GET_FARVAR(seg, *offset_far); |
| 650 | offset_far++; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 651 | if ((flag & 0x02) != 0) { |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 652 | attr = GET_FARVAR(seg, *offset_far); |
| 653 | offset_far++; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 654 | } |
| 655 | |
| 656 | biosfn_write_teletype(car, page, attr, WITH_ATTR); |
| 657 | } |
| 658 | |
| 659 | // Set back curs pos |
| 660 | if ((flag & 0x01) == 0) |
| 661 | biosfn_set_cursor_pos(page, oldcurs); |
| 662 | } |
| 663 | |
| 664 | // ------------------------------------------------------------------- |
| 665 | static void |
| 666 | biosfn_read_display_code(struct bregs *regs) |
| 667 | { |
| 668 | regs->bx = GET_BDA(dcc_index); |
| 669 | regs->al = 0x1a; |
| 670 | } |
| 671 | |
| 672 | static void |
| 673 | biosfn_set_display_code(struct bregs *regs) |
| 674 | { |
| 675 | SET_BDA(dcc_index, regs->bl); |
Kevin O'Connor | a12c215 | 2009-05-13 22:06:16 -0400 | [diff] [blame] | 676 | dprintf(1, "Alternate Display code (%02x) was discarded\n", regs->bh); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 677 | regs->al = 0x1a; |
| 678 | } |
| 679 | |
| 680 | // ------------------------------------------------------------------- |
| 681 | static void |
| 682 | biosfn_read_state_info(u16 BX, u16 ES, u16 DI) |
| 683 | { |
| 684 | // Address of static functionality table |
| 685 | SET_FARVAR(ES, *(u16*)(DI + 0x00), (u32)static_functionality); |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 686 | SET_FARVAR(ES, *(u16*)(DI + 0x02), get_global_seg()); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 687 | |
| 688 | // Hard coded copy from BIOS area. Should it be cleaner ? |
| 689 | memcpy_far(ES, (void*)(DI + 0x04), SEG_BDA, (void*)0x49, 30); |
| 690 | memcpy_far(ES, (void*)(DI + 0x22), SEG_BDA, (void*)0x84, 3); |
| 691 | |
| 692 | SET_FARVAR(ES, *(u8*)(DI + 0x25), GET_BDA(dcc_index)); |
| 693 | SET_FARVAR(ES, *(u8*)(DI + 0x26), 0); |
| 694 | SET_FARVAR(ES, *(u8*)(DI + 0x27), 16); |
| 695 | SET_FARVAR(ES, *(u8*)(DI + 0x28), 0); |
| 696 | SET_FARVAR(ES, *(u8*)(DI + 0x29), 8); |
| 697 | SET_FARVAR(ES, *(u8*)(DI + 0x2a), 2); |
| 698 | SET_FARVAR(ES, *(u8*)(DI + 0x2b), 0); |
| 699 | SET_FARVAR(ES, *(u8*)(DI + 0x2c), 0); |
| 700 | SET_FARVAR(ES, *(u8*)(DI + 0x31), 3); |
| 701 | SET_FARVAR(ES, *(u8*)(DI + 0x32), 0); |
| 702 | |
| 703 | memset_far(ES, (void*)(DI + 0x33), 0, 13); |
| 704 | } |
| 705 | |
| 706 | // ------------------------------------------------------------------- |
| 707 | // ------------------------------------------------------------------- |
| 708 | static u16 |
| 709 | biosfn_read_video_state_size(u16 CX) |
| 710 | { |
| 711 | u16 size = 0; |
| 712 | if (CX & 1) |
| 713 | size += 0x46; |
| 714 | if (CX & 2) |
| 715 | size += (5 + 8 + 5) * 2 + 6; |
| 716 | if (CX & 4) |
| 717 | size += 3 + 256 * 3 + 1; |
| 718 | return size; |
| 719 | } |
| 720 | |
| 721 | static u16 |
| 722 | biosfn_save_video_state(u16 CX, u16 ES, u16 BX) |
| 723 | { |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 724 | u16 crtc_addr = GET_BDA(crtc_address); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 725 | if (CX & 1) { |
| 726 | SET_FARVAR(ES, *(u8*)(BX+0), inb(VGAREG_SEQU_ADDRESS)); |
| 727 | BX++; |
| 728 | SET_FARVAR(ES, *(u8*)(BX+0), inb(crtc_addr)); |
| 729 | BX++; |
| 730 | SET_FARVAR(ES, *(u8*)(BX+0), inb(VGAREG_GRDC_ADDRESS)); |
| 731 | BX++; |
| 732 | inb(VGAREG_ACTL_RESET); |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 733 | u16 ar_index = inb(VGAREG_ACTL_ADDRESS); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 734 | SET_FARVAR(ES, *(u8*)(BX+0), ar_index); |
| 735 | BX++; |
| 736 | SET_FARVAR(ES, *(u8*)(BX+0), inb(VGAREG_READ_FEATURE_CTL)); |
| 737 | BX++; |
| 738 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 739 | u16 i; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 740 | for (i = 1; i <= 4; i++) { |
| 741 | outb(i, VGAREG_SEQU_ADDRESS); |
| 742 | SET_FARVAR(ES, *(u8*)(BX+0), inb(VGAREG_SEQU_DATA)); |
| 743 | BX++; |
| 744 | } |
| 745 | outb(0, VGAREG_SEQU_ADDRESS); |
| 746 | SET_FARVAR(ES, *(u8*)(BX+0), inb(VGAREG_SEQU_DATA)); |
| 747 | BX++; |
| 748 | |
| 749 | for (i = 0; i <= 0x18; i++) { |
| 750 | outb(i, crtc_addr); |
| 751 | SET_FARVAR(ES, *(u8*)(BX+0), inb(crtc_addr + 1)); |
| 752 | BX++; |
| 753 | } |
| 754 | |
| 755 | for (i = 0; i <= 0x13; i++) { |
| 756 | inb(VGAREG_ACTL_RESET); |
| 757 | outb(i | (ar_index & 0x20), VGAREG_ACTL_ADDRESS); |
| 758 | SET_FARVAR(ES, *(u8*)(BX+0), inb(VGAREG_ACTL_READ_DATA)); |
| 759 | BX++; |
| 760 | } |
| 761 | inb(VGAREG_ACTL_RESET); |
| 762 | |
| 763 | for (i = 0; i <= 8; i++) { |
| 764 | outb(i, VGAREG_GRDC_ADDRESS); |
| 765 | SET_FARVAR(ES, *(u8*)(BX+0), inb(VGAREG_GRDC_DATA)); |
| 766 | BX++; |
| 767 | } |
| 768 | |
| 769 | SET_FARVAR(ES, *(u16*)(BX+0), crtc_addr); |
| 770 | BX += 2; |
| 771 | |
| 772 | /* XXX: read plane latches */ |
| 773 | SET_FARVAR(ES, *(u8*)(BX+0), 0); |
| 774 | BX++; |
| 775 | SET_FARVAR(ES, *(u8*)(BX+0), 0); |
| 776 | BX++; |
| 777 | SET_FARVAR(ES, *(u8*)(BX+0), 0); |
| 778 | BX++; |
| 779 | SET_FARVAR(ES, *(u8*)(BX+0), 0); |
| 780 | BX++; |
| 781 | } |
| 782 | if (CX & 2) { |
| 783 | SET_FARVAR(ES, *(u8*)(BX+0), GET_BDA(video_mode)); |
| 784 | BX++; |
| 785 | SET_FARVAR(ES, *(u16*)(BX+0), GET_BDA(video_cols)); |
| 786 | BX += 2; |
| 787 | SET_FARVAR(ES, *(u16*)(BX+0), GET_BDA(video_pagesize)); |
| 788 | BX += 2; |
| 789 | SET_FARVAR(ES, *(u16*)(BX+0), GET_BDA(crtc_address)); |
| 790 | BX += 2; |
| 791 | SET_FARVAR(ES, *(u8*)(BX+0), GET_BDA(video_rows)); |
| 792 | BX++; |
| 793 | SET_FARVAR(ES, *(u16*)(BX+0), GET_BDA(char_height)); |
| 794 | BX += 2; |
| 795 | SET_FARVAR(ES, *(u8*)(BX+0), GET_BDA(video_ctl)); |
| 796 | BX++; |
| 797 | SET_FARVAR(ES, *(u8*)(BX+0), GET_BDA(video_switches)); |
| 798 | BX++; |
| 799 | SET_FARVAR(ES, *(u8*)(BX+0), GET_BDA(modeset_ctl)); |
| 800 | BX++; |
| 801 | SET_FARVAR(ES, *(u16*)(BX+0), GET_BDA(cursor_type)); |
| 802 | BX += 2; |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 803 | u16 i; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 804 | for (i = 0; i < 8; i++) { |
| 805 | SET_FARVAR(ES, *(u16*)(BX+0), GET_BDA(cursor_pos[i])); |
| 806 | BX += 2; |
| 807 | } |
| 808 | SET_FARVAR(ES, *(u16*)(BX+0), GET_BDA(video_pagestart)); |
| 809 | BX += 2; |
| 810 | SET_FARVAR(ES, *(u8*)(BX+0), GET_BDA(video_page)); |
| 811 | BX++; |
| 812 | /* current font */ |
Kevin O'Connor | f61afb8 | 2009-05-16 21:32:27 -0400 | [diff] [blame] | 813 | SET_FARVAR(ES, *(u32*)(BX+0), GET_IVT(0x1f).segoff); |
| 814 | BX += 4; |
| 815 | SET_FARVAR(ES, *(u32*)(BX+0), GET_IVT(0x43).segoff); |
| 816 | BX += 4; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 817 | } |
| 818 | if (CX & 4) { |
| 819 | /* XXX: check this */ |
| 820 | SET_FARVAR(ES, *(u8*)(BX+0), inb(VGAREG_DAC_STATE)); |
| 821 | BX++; /* read/write mode dac */ |
| 822 | SET_FARVAR(ES, *(u8*)(BX+0), inb(VGAREG_DAC_WRITE_ADDRESS)); |
| 823 | BX++; /* pix address */ |
| 824 | SET_FARVAR(ES, *(u8*)(BX+0), inb(VGAREG_PEL_MASK)); |
| 825 | BX++; |
| 826 | // Set the whole dac always, from 0 |
| 827 | outb(0x00, VGAREG_DAC_WRITE_ADDRESS); |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 828 | u16 i; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 829 | for (i = 0; i < 256 * 3; i++) { |
| 830 | SET_FARVAR(ES, *(u8*)(BX+0), inb(VGAREG_DAC_DATA)); |
| 831 | BX++; |
| 832 | } |
| 833 | SET_FARVAR(ES, *(u8*)(BX+0), 0); |
| 834 | BX++; /* color select register */ |
| 835 | } |
| 836 | return BX; |
| 837 | } |
| 838 | |
| 839 | static u16 |
| 840 | biosfn_restore_video_state(u16 CX, u16 ES, u16 BX) |
| 841 | { |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 842 | if (CX & 1) { |
| 843 | // Reset Attribute Ctl flip-flop |
| 844 | inb(VGAREG_ACTL_RESET); |
| 845 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 846 | u16 crtc_addr = GET_FARVAR(ES, *(u16*)(BX + 0x40)); |
| 847 | u16 addr1 = BX; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 848 | BX += 5; |
| 849 | |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 850 | u16 i; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 851 | for (i = 1; i <= 4; i++) { |
| 852 | outb(i, VGAREG_SEQU_ADDRESS); |
| 853 | outb(GET_FARVAR(ES, *(u8*)(BX+0)), VGAREG_SEQU_DATA); |
| 854 | BX++; |
| 855 | } |
| 856 | outb(0, VGAREG_SEQU_ADDRESS); |
| 857 | outb(GET_FARVAR(ES, *(u8*)(BX+0)), VGAREG_SEQU_DATA); |
| 858 | BX++; |
| 859 | |
| 860 | // Disable CRTC write protection |
| 861 | outw(0x0011, crtc_addr); |
| 862 | // Set CRTC regs |
| 863 | for (i = 0; i <= 0x18; i++) { |
| 864 | if (i != 0x11) { |
| 865 | outb(i, crtc_addr); |
| 866 | outb(GET_FARVAR(ES, *(u8*)(BX+0)), crtc_addr + 1); |
| 867 | } |
| 868 | BX++; |
| 869 | } |
| 870 | // select crtc base address |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 871 | u16 v = inb(VGAREG_READ_MISC_OUTPUT) & ~0x01; |
Kevin O'Connor | d9fc0a0 | 2009-05-07 22:00:25 -0400 | [diff] [blame] | 872 | if (crtc_addr == VGAREG_VGA_CRTC_ADDRESS) |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 873 | v |= 0x01; |
| 874 | outb(v, VGAREG_WRITE_MISC_OUTPUT); |
| 875 | |
| 876 | // enable write protection if needed |
| 877 | outb(0x11, crtc_addr); |
| 878 | outb(GET_FARVAR(ES, *(u8*)(BX - 0x18 + 0x11)), crtc_addr + 1); |
| 879 | |
| 880 | // Set Attribute Ctl |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 881 | u16 ar_index = GET_FARVAR(ES, *(u8*)(addr1 + 0x03)); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 882 | inb(VGAREG_ACTL_RESET); |
| 883 | for (i = 0; i <= 0x13; i++) { |
| 884 | outb(i | (ar_index & 0x20), VGAREG_ACTL_ADDRESS); |
| 885 | outb(GET_FARVAR(ES, *(u8*)(BX+0)), VGAREG_ACTL_WRITE_DATA); |
| 886 | BX++; |
| 887 | } |
| 888 | outb(ar_index, VGAREG_ACTL_ADDRESS); |
| 889 | inb(VGAREG_ACTL_RESET); |
| 890 | |
| 891 | for (i = 0; i <= 8; i++) { |
| 892 | outb(i, VGAREG_GRDC_ADDRESS); |
| 893 | outb(GET_FARVAR(ES, *(u8*)(BX+0)), VGAREG_GRDC_DATA); |
| 894 | BX++; |
| 895 | } |
| 896 | BX += 2; /* crtc_addr */ |
| 897 | BX += 4; /* plane latches */ |
| 898 | |
| 899 | outb(GET_FARVAR(ES, *(u8*)(addr1+0)), VGAREG_SEQU_ADDRESS); |
| 900 | addr1++; |
| 901 | outb(GET_FARVAR(ES, *(u8*)(addr1+0)), crtc_addr); |
| 902 | addr1++; |
| 903 | outb(GET_FARVAR(ES, *(u8*)(addr1+0)), VGAREG_GRDC_ADDRESS); |
| 904 | addr1++; |
| 905 | addr1++; |
| 906 | outb(GET_FARVAR(ES, *(u8*)(addr1+0)), crtc_addr - 0x4 + 0xa); |
| 907 | addr1++; |
| 908 | } |
| 909 | if (CX & 2) { |
| 910 | SET_BDA(video_mode, GET_FARVAR(ES, *(u8*)(BX+0))); |
| 911 | BX++; |
| 912 | SET_BDA(video_cols, GET_FARVAR(ES, *(u16*)(BX+0))); |
| 913 | BX += 2; |
| 914 | SET_BDA(video_pagesize, GET_FARVAR(ES, *(u16*)(BX+0))); |
| 915 | BX += 2; |
| 916 | SET_BDA(crtc_address, GET_FARVAR(ES, *(u16*)(BX+0))); |
| 917 | BX += 2; |
| 918 | SET_BDA(video_rows, GET_FARVAR(ES, *(u8*)(BX+0))); |
| 919 | BX++; |
| 920 | SET_BDA(char_height, GET_FARVAR(ES, *(u16*)(BX+0))); |
| 921 | BX += 2; |
| 922 | SET_BDA(video_ctl, GET_FARVAR(ES, *(u8*)(BX+0))); |
| 923 | BX++; |
| 924 | SET_BDA(video_switches, GET_FARVAR(ES, *(u8*)(BX+0))); |
| 925 | BX++; |
| 926 | SET_BDA(modeset_ctl, GET_FARVAR(ES, *(u8*)(BX+0))); |
| 927 | BX++; |
| 928 | SET_BDA(cursor_type, GET_FARVAR(ES, *(u16*)(BX+0))); |
| 929 | BX += 2; |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 930 | u16 i; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 931 | for (i = 0; i < 8; i++) { |
| 932 | SET_BDA(cursor_pos[i], GET_FARVAR(ES, *(u16*)(BX+0))); |
| 933 | BX += 2; |
| 934 | } |
| 935 | SET_BDA(video_pagestart, GET_FARVAR(ES, *(u16*)(BX+0))); |
| 936 | BX += 2; |
| 937 | SET_BDA(video_page, GET_FARVAR(ES, *(u8*)(BX+0))); |
| 938 | BX++; |
| 939 | /* current font */ |
| 940 | SET_IVT(0x1f, GET_FARVAR(ES, *(u16*)(BX+2)), GET_FARVAR(ES, *(u16*)(BX+0))); |
| 941 | BX += 4; |
| 942 | SET_IVT(0x43, GET_FARVAR(ES, *(u16*)(BX+2)), GET_FARVAR(ES, *(u16*)(BX+0))); |
| 943 | BX += 4; |
| 944 | } |
| 945 | if (CX & 4) { |
| 946 | BX++; |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 947 | u16 v = GET_FARVAR(ES, *(u8*)(BX+0)); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 948 | BX++; |
| 949 | outb(GET_FARVAR(ES, *(u8*)(BX+0)), VGAREG_PEL_MASK); |
| 950 | BX++; |
| 951 | // Set the whole dac always, from 0 |
| 952 | outb(0x00, VGAREG_DAC_WRITE_ADDRESS); |
Kevin O'Connor | dd2be77 | 2009-05-16 15:41:23 -0400 | [diff] [blame] | 953 | u16 i; |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 954 | for (i = 0; i < 256 * 3; i++) { |
| 955 | outb(GET_FARVAR(ES, *(u8*)(BX+0)), VGAREG_DAC_DATA); |
| 956 | BX++; |
| 957 | } |
| 958 | BX++; |
| 959 | outb(v, VGAREG_DAC_WRITE_ADDRESS); |
| 960 | } |
| 961 | return BX; |
| 962 | } |
| 963 | |
| 964 | |
| 965 | /**************************************************************** |
| 966 | * VGA int 10 handler |
| 967 | ****************************************************************/ |
| 968 | |
| 969 | static void |
| 970 | handle_1000(struct bregs *regs) |
| 971 | { |
| 972 | // XXX - inline |
| 973 | biosfn_set_video_mode(regs->al); |
| 974 | switch(regs->al & 0x7F) { |
| 975 | case 6: |
| 976 | regs->al = 0x3F; |
| 977 | break; |
| 978 | case 0: |
| 979 | case 1: |
| 980 | case 2: |
| 981 | case 3: |
| 982 | case 4: |
| 983 | case 5: |
| 984 | case 7: |
| 985 | regs->al = 0x30; |
| 986 | break; |
| 987 | default: |
| 988 | regs->al = 0x20; |
| 989 | } |
| 990 | } |
| 991 | |
| 992 | static void |
| 993 | handle_1001(struct bregs *regs) |
| 994 | { |
| 995 | biosfn_set_cursor_shape(regs->ch, regs->cl); |
| 996 | } |
| 997 | |
| 998 | static void |
| 999 | handle_1002(struct bregs *regs) |
| 1000 | { |
| 1001 | biosfn_set_cursor_pos(regs->bh, regs->dx); |
| 1002 | } |
| 1003 | |
| 1004 | static void |
| 1005 | handle_1003(struct bregs *regs) |
| 1006 | { |
Kevin O'Connor | 0818e1a | 2009-05-16 18:00:19 -0400 | [diff] [blame] | 1007 | regs->cx = biosfn_get_cursor_shape(regs->bh); |
| 1008 | regs->dx = biosfn_get_cursor_pos(regs->bh); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1009 | } |
| 1010 | |
| 1011 | // Read light pen pos (unimplemented) |
| 1012 | static void |
| 1013 | handle_1004(struct bregs *regs) |
| 1014 | { |
| 1015 | debug_stub(regs); |
| 1016 | regs->ax = regs->bx = regs->cx = regs->dx = 0; |
| 1017 | } |
| 1018 | |
| 1019 | static void |
| 1020 | handle_1005(struct bregs *regs) |
| 1021 | { |
| 1022 | biosfn_set_active_page(regs->al); |
| 1023 | } |
| 1024 | |
| 1025 | static void |
| 1026 | handle_1006(struct bregs *regs) |
| 1027 | { |
| 1028 | biosfn_scroll(regs->al, regs->bh, regs->ch, regs->cl, regs->dh, regs->dl |
| 1029 | , 0xFF, SCROLL_UP); |
| 1030 | } |
| 1031 | |
| 1032 | static void |
| 1033 | handle_1007(struct bregs *regs) |
| 1034 | { |
| 1035 | biosfn_scroll(regs->al, regs->bh, regs->ch, regs->cl, regs->dh, regs->dl |
| 1036 | , 0xFF, SCROLL_DOWN); |
| 1037 | } |
| 1038 | |
| 1039 | static void |
| 1040 | handle_1008(struct bregs *regs) |
| 1041 | { |
| 1042 | // XXX - inline |
| 1043 | biosfn_read_char_attr(regs->bh, ®s->ax); |
| 1044 | } |
| 1045 | |
| 1046 | static void |
| 1047 | handle_1009(struct bregs *regs) |
| 1048 | { |
| 1049 | // XXX - inline |
| 1050 | biosfn_write_char_attr(regs->al, regs->bh, regs->bl, regs->cx); |
| 1051 | } |
| 1052 | |
| 1053 | static void |
| 1054 | handle_100a(struct bregs *regs) |
| 1055 | { |
| 1056 | // XXX - inline |
| 1057 | biosfn_write_char_only(regs->al, regs->bh, regs->bl, regs->cx); |
| 1058 | } |
| 1059 | |
| 1060 | |
| 1061 | static void |
| 1062 | handle_100b00(struct bregs *regs) |
| 1063 | { |
| 1064 | // XXX - inline |
| 1065 | biosfn_set_border_color(regs); |
| 1066 | } |
| 1067 | |
| 1068 | static void |
| 1069 | handle_100b01(struct bregs *regs) |
| 1070 | { |
| 1071 | // XXX - inline |
| 1072 | biosfn_set_palette(regs); |
| 1073 | } |
| 1074 | |
| 1075 | static void |
| 1076 | handle_100bXX(struct bregs *regs) |
| 1077 | { |
| 1078 | debug_stub(regs); |
| 1079 | } |
| 1080 | |
| 1081 | static void |
| 1082 | handle_100b(struct bregs *regs) |
| 1083 | { |
| 1084 | switch (regs->bh) { |
| 1085 | case 0x00: handle_100b00(regs); break; |
| 1086 | case 0x01: handle_100b01(regs); break; |
| 1087 | default: handle_100bXX(regs); break; |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | |
| 1092 | static void |
| 1093 | handle_100c(struct bregs *regs) |
| 1094 | { |
| 1095 | // XXX - inline |
| 1096 | biosfn_write_pixel(regs->bh, regs->al, regs->cx, regs->dx); |
| 1097 | } |
| 1098 | |
| 1099 | static void |
| 1100 | handle_100d(struct bregs *regs) |
| 1101 | { |
| 1102 | // XXX - inline |
| 1103 | biosfn_read_pixel(regs->bh, regs->cx, regs->dx, ®s->ax); |
| 1104 | } |
| 1105 | |
| 1106 | static void |
| 1107 | handle_100e(struct bregs *regs) |
| 1108 | { |
| 1109 | // Ralf Brown Interrupt list is WRONG on bh(page) |
| 1110 | // We do output only on the current page ! |
| 1111 | biosfn_write_teletype(regs->al, 0xff, regs->bl, NO_ATTR); |
| 1112 | } |
| 1113 | |
| 1114 | static void |
| 1115 | handle_100f(struct bregs *regs) |
| 1116 | { |
| 1117 | // XXX - inline |
| 1118 | biosfn_get_video_mode(regs); |
| 1119 | } |
| 1120 | |
| 1121 | |
| 1122 | static void |
| 1123 | handle_101000(struct bregs *regs) |
| 1124 | { |
| 1125 | if (regs->bl > 0x14) |
| 1126 | return; |
| 1127 | biosfn_set_single_palette_reg(regs->bl, regs->bh); |
| 1128 | } |
| 1129 | |
| 1130 | static void |
| 1131 | handle_101001(struct bregs *regs) |
| 1132 | { |
| 1133 | // XXX - inline |
| 1134 | biosfn_set_overscan_border_color(regs); |
| 1135 | } |
| 1136 | |
| 1137 | static void |
| 1138 | handle_101002(struct bregs *regs) |
| 1139 | { |
| 1140 | // XXX - inline |
| 1141 | biosfn_set_all_palette_reg(regs); |
| 1142 | } |
| 1143 | |
| 1144 | static void |
| 1145 | handle_101003(struct bregs *regs) |
| 1146 | { |
| 1147 | // XXX - inline |
| 1148 | biosfn_toggle_intensity(regs); |
| 1149 | } |
| 1150 | |
| 1151 | static void |
| 1152 | handle_101007(struct bregs *regs) |
| 1153 | { |
| 1154 | if (regs->bl > 0x14) |
| 1155 | return; |
| 1156 | regs->bh = biosfn_get_single_palette_reg(regs->bl); |
| 1157 | } |
| 1158 | |
| 1159 | static void |
| 1160 | handle_101008(struct bregs *regs) |
| 1161 | { |
| 1162 | // XXX - inline |
| 1163 | biosfn_read_overscan_border_color(regs); |
| 1164 | } |
| 1165 | |
| 1166 | static void |
| 1167 | handle_101009(struct bregs *regs) |
| 1168 | { |
| 1169 | // XXX - inline |
| 1170 | biosfn_get_all_palette_reg(regs); |
| 1171 | } |
| 1172 | |
| 1173 | static void |
| 1174 | handle_101010(struct bregs *regs) |
| 1175 | { |
| 1176 | // XXX - inline |
| 1177 | biosfn_set_single_dac_reg(regs); |
| 1178 | } |
| 1179 | |
| 1180 | static void |
| 1181 | handle_101012(struct bregs *regs) |
| 1182 | { |
| 1183 | // XXX - inline |
| 1184 | biosfn_set_all_dac_reg(regs); |
| 1185 | } |
| 1186 | |
| 1187 | static void |
| 1188 | handle_101013(struct bregs *regs) |
| 1189 | { |
| 1190 | // XXX - inline |
| 1191 | biosfn_select_video_dac_color_page(regs); |
| 1192 | } |
| 1193 | |
| 1194 | static void |
| 1195 | handle_101015(struct bregs *regs) |
| 1196 | { |
| 1197 | // XXX - inline |
| 1198 | biosfn_read_single_dac_reg(regs); |
| 1199 | } |
| 1200 | |
| 1201 | static void |
| 1202 | handle_101017(struct bregs *regs) |
| 1203 | { |
| 1204 | // XXX - inline |
| 1205 | biosfn_read_all_dac_reg(regs); |
| 1206 | } |
| 1207 | |
| 1208 | static void |
| 1209 | handle_101018(struct bregs *regs) |
| 1210 | { |
| 1211 | // XXX - inline |
| 1212 | biosfn_set_pel_mask(regs); |
| 1213 | } |
| 1214 | |
| 1215 | static void |
| 1216 | handle_101019(struct bregs *regs) |
| 1217 | { |
| 1218 | // XXX - inline |
| 1219 | biosfn_read_pel_mask(regs); |
| 1220 | } |
| 1221 | |
| 1222 | static void |
| 1223 | handle_10101a(struct bregs *regs) |
| 1224 | { |
| 1225 | // XXX - inline |
| 1226 | biosfn_read_video_dac_state(regs); |
| 1227 | } |
| 1228 | |
| 1229 | static void |
| 1230 | handle_10101b(struct bregs *regs) |
| 1231 | { |
| 1232 | biosfn_perform_gray_scale_summing(regs->bx, regs->cx); |
| 1233 | } |
| 1234 | |
| 1235 | static void |
| 1236 | handle_1010XX(struct bregs *regs) |
| 1237 | { |
| 1238 | debug_stub(regs); |
| 1239 | } |
| 1240 | |
| 1241 | static void |
| 1242 | handle_1010(struct bregs *regs) |
| 1243 | { |
| 1244 | switch (regs->al) { |
| 1245 | case 0x00: handle_101000(regs); break; |
| 1246 | case 0x01: handle_101001(regs); break; |
| 1247 | case 0x02: handle_101002(regs); break; |
| 1248 | case 0x03: handle_101003(regs); break; |
| 1249 | case 0x07: handle_101007(regs); break; |
| 1250 | case 0x08: handle_101008(regs); break; |
| 1251 | case 0x09: handle_101009(regs); break; |
| 1252 | case 0x10: handle_101010(regs); break; |
| 1253 | case 0x12: handle_101012(regs); break; |
| 1254 | case 0x13: handle_101013(regs); break; |
| 1255 | case 0x15: handle_101015(regs); break; |
| 1256 | case 0x17: handle_101017(regs); break; |
| 1257 | case 0x18: handle_101018(regs); break; |
| 1258 | case 0x19: handle_101019(regs); break; |
| 1259 | case 0x1a: handle_10101a(regs); break; |
| 1260 | case 0x1b: handle_10101b(regs); break; |
| 1261 | default: handle_1010XX(regs); break; |
| 1262 | } |
| 1263 | } |
| 1264 | |
| 1265 | |
| 1266 | static void |
| 1267 | handle_101100(struct bregs *regs) |
| 1268 | { |
Kevin O'Connor | c0c7df6 | 2009-05-17 18:11:33 -0400 | [diff] [blame^] | 1269 | biosfn_load_text_user_pat(regs->es, regs->bp |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1270 | , regs->cx, regs->dx, regs->bl, regs->bh); |
| 1271 | } |
| 1272 | |
| 1273 | static void |
| 1274 | handle_101101(struct bregs *regs) |
| 1275 | { |
Kevin O'Connor | c0c7df6 | 2009-05-17 18:11:33 -0400 | [diff] [blame^] | 1276 | biosfn_load_text_8_14_pat(regs->bl); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1277 | } |
| 1278 | |
| 1279 | static void |
| 1280 | handle_101102(struct bregs *regs) |
| 1281 | { |
Kevin O'Connor | c0c7df6 | 2009-05-17 18:11:33 -0400 | [diff] [blame^] | 1282 | biosfn_load_text_8_8_pat(regs->bl); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1283 | } |
| 1284 | |
| 1285 | static void |
| 1286 | handle_101103(struct bregs *regs) |
| 1287 | { |
| 1288 | // XXX - inline |
| 1289 | biosfn_set_text_block_specifier(regs); |
| 1290 | } |
| 1291 | |
| 1292 | static void |
| 1293 | handle_101104(struct bregs *regs) |
| 1294 | { |
Kevin O'Connor | c0c7df6 | 2009-05-17 18:11:33 -0400 | [diff] [blame^] | 1295 | biosfn_load_text_8_16_pat(regs->bl); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1296 | } |
| 1297 | |
| 1298 | static void |
| 1299 | handle_101110(struct bregs *regs) |
| 1300 | { |
Kevin O'Connor | c0c7df6 | 2009-05-17 18:11:33 -0400 | [diff] [blame^] | 1301 | biosfn_load_text_user_pat(regs->es, regs->bp |
| 1302 | , regs->cx, regs->dx, regs->bl, regs->bh); |
| 1303 | set_scan_lines(regs->bh); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1304 | } |
| 1305 | |
| 1306 | static void |
| 1307 | handle_101111(struct bregs *regs) |
| 1308 | { |
Kevin O'Connor | c0c7df6 | 2009-05-17 18:11:33 -0400 | [diff] [blame^] | 1309 | biosfn_load_text_8_14_pat(regs->bl); |
| 1310 | set_scan_lines(14); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1311 | } |
| 1312 | |
| 1313 | static void |
| 1314 | handle_101112(struct bregs *regs) |
| 1315 | { |
Kevin O'Connor | c0c7df6 | 2009-05-17 18:11:33 -0400 | [diff] [blame^] | 1316 | biosfn_load_text_8_8_pat(regs->bl); |
| 1317 | set_scan_lines(8); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1318 | } |
| 1319 | |
| 1320 | static void |
| 1321 | handle_101114(struct bregs *regs) |
| 1322 | { |
Kevin O'Connor | c0c7df6 | 2009-05-17 18:11:33 -0400 | [diff] [blame^] | 1323 | biosfn_load_text_8_16_pat(regs->bl); |
| 1324 | set_scan_lines(16); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1325 | } |
| 1326 | |
| 1327 | static void |
| 1328 | handle_101130(struct bregs *regs) |
| 1329 | { |
| 1330 | // XXX - inline |
Kevin O'Connor | 99e08b7 | 2009-05-17 00:07:31 -0400 | [diff] [blame] | 1331 | biosfn_get_font_info(regs->bh, ®s->es, ®s->bp |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1332 | , ®s->cx, ®s->dx); |
| 1333 | } |
| 1334 | |
| 1335 | static void |
| 1336 | handle_1011XX(struct bregs *regs) |
| 1337 | { |
| 1338 | debug_stub(regs); |
| 1339 | } |
| 1340 | |
| 1341 | static void |
| 1342 | handle_1011(struct bregs *regs) |
| 1343 | { |
| 1344 | switch (regs->al) { |
| 1345 | case 0x00: handle_101100(regs); break; |
| 1346 | case 0x01: handle_101101(regs); break; |
| 1347 | case 0x02: handle_101102(regs); break; |
| 1348 | case 0x03: handle_101103(regs); break; |
| 1349 | case 0x04: handle_101104(regs); break; |
| 1350 | case 0x10: handle_101110(regs); break; |
| 1351 | case 0x11: handle_101111(regs); break; |
| 1352 | case 0x12: handle_101112(regs); break; |
| 1353 | case 0x14: handle_101114(regs); break; |
| 1354 | case 0x30: handle_101130(regs); break; |
| 1355 | default: handle_1011XX(regs); break; |
| 1356 | } |
| 1357 | } |
| 1358 | |
| 1359 | |
| 1360 | static void |
| 1361 | handle_101210(struct bregs *regs) |
| 1362 | { |
| 1363 | // XXX - inline |
| 1364 | biosfn_get_ega_info(regs); |
| 1365 | } |
| 1366 | |
| 1367 | static void |
| 1368 | handle_101230(struct bregs *regs) |
| 1369 | { |
| 1370 | // XXX - inline |
| 1371 | biosfn_select_vert_res(regs); |
| 1372 | } |
| 1373 | |
| 1374 | static void |
| 1375 | handle_101231(struct bregs *regs) |
| 1376 | { |
| 1377 | // XXX - inline |
| 1378 | biosfn_enable_default_palette_loading(regs); |
| 1379 | } |
| 1380 | |
| 1381 | static void |
| 1382 | handle_101232(struct bregs *regs) |
| 1383 | { |
| 1384 | // XXX - inline |
| 1385 | biosfn_enable_video_addressing(regs); |
| 1386 | } |
| 1387 | |
| 1388 | static void |
| 1389 | handle_101233(struct bregs *regs) |
| 1390 | { |
| 1391 | // XXX - inline |
| 1392 | biosfn_enable_grayscale_summing(regs); |
| 1393 | } |
| 1394 | |
| 1395 | static void |
| 1396 | handle_101234(struct bregs *regs) |
| 1397 | { |
| 1398 | // XXX - inline |
| 1399 | biosfn_enable_cursor_emulation(regs); |
| 1400 | } |
| 1401 | |
| 1402 | static void |
| 1403 | handle_101235(struct bregs *regs) |
| 1404 | { |
| 1405 | debug_stub(regs); |
| 1406 | regs->al = 0x12; |
| 1407 | } |
| 1408 | |
| 1409 | static void |
| 1410 | handle_101236(struct bregs *regs) |
| 1411 | { |
| 1412 | debug_stub(regs); |
| 1413 | regs->al = 0x12; |
| 1414 | } |
| 1415 | |
| 1416 | static void |
| 1417 | handle_1012XX(struct bregs *regs) |
| 1418 | { |
| 1419 | debug_stub(regs); |
| 1420 | } |
| 1421 | |
| 1422 | static void |
| 1423 | handle_1012(struct bregs *regs) |
| 1424 | { |
| 1425 | switch (regs->bl) { |
| 1426 | case 0x10: handle_101210(regs); break; |
| 1427 | case 0x30: handle_101230(regs); break; |
| 1428 | case 0x31: handle_101231(regs); break; |
| 1429 | case 0x32: handle_101232(regs); break; |
| 1430 | case 0x33: handle_101233(regs); break; |
| 1431 | case 0x34: handle_101234(regs); break; |
| 1432 | case 0x35: handle_101235(regs); break; |
| 1433 | case 0x36: handle_101236(regs); break; |
| 1434 | default: handle_1012XX(regs); break; |
| 1435 | } |
| 1436 | |
| 1437 | // XXX - cirrus has 1280, 1281, 1282, 1285, 129a, 12a0, 12a1, 12a2, 12ae |
| 1438 | } |
| 1439 | |
| 1440 | |
| 1441 | static void |
| 1442 | handle_1013(struct bregs *regs) |
| 1443 | { |
| 1444 | // XXX - inline |
| 1445 | biosfn_write_string(regs->al, regs->bh, regs->bl, regs->cx |
Kevin O'Connor | 99e08b7 | 2009-05-17 00:07:31 -0400 | [diff] [blame] | 1446 | , regs->dh, regs->dl, regs->es, (void*)(regs->bp + 0)); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1447 | } |
| 1448 | |
| 1449 | |
| 1450 | static void |
| 1451 | handle_101a00(struct bregs *regs) |
| 1452 | { |
| 1453 | // XXX - inline |
| 1454 | biosfn_read_display_code(regs); |
| 1455 | } |
| 1456 | |
| 1457 | static void |
| 1458 | handle_101a01(struct bregs *regs) |
| 1459 | { |
| 1460 | // XXX - inline |
| 1461 | biosfn_set_display_code(regs); |
| 1462 | } |
| 1463 | |
| 1464 | static void |
| 1465 | handle_101aXX(struct bregs *regs) |
| 1466 | { |
| 1467 | debug_stub(regs); |
| 1468 | } |
| 1469 | |
| 1470 | static void |
| 1471 | handle_101a(struct bregs *regs) |
| 1472 | { |
| 1473 | switch (regs->al) { |
| 1474 | case 0x00: handle_101a00(regs); break; |
| 1475 | case 0x01: handle_101a01(regs); break; |
| 1476 | default: handle_101aXX(regs); break; |
| 1477 | } |
| 1478 | } |
| 1479 | |
| 1480 | |
| 1481 | static void |
| 1482 | handle_101b(struct bregs *regs) |
| 1483 | { |
| 1484 | // XXX - inline |
| 1485 | biosfn_read_state_info(regs->bx, regs->es, regs->di); |
| 1486 | regs->al = 0x1B; |
| 1487 | } |
| 1488 | |
| 1489 | |
| 1490 | static void |
| 1491 | handle_101c00(struct bregs *regs) |
| 1492 | { |
| 1493 | // XXX - inline |
| 1494 | regs->bx = biosfn_read_video_state_size(regs->cx); |
| 1495 | } |
| 1496 | |
| 1497 | static void |
| 1498 | handle_101c01(struct bregs *regs) |
| 1499 | { |
| 1500 | // XXX - inline |
| 1501 | biosfn_save_video_state(regs->cx, regs->es, regs->bx); |
| 1502 | } |
| 1503 | |
| 1504 | static void |
| 1505 | handle_101c02(struct bregs *regs) |
| 1506 | { |
| 1507 | // XXX - inline |
| 1508 | biosfn_restore_video_state(regs->cx, regs->es, regs->bx); |
| 1509 | } |
| 1510 | |
| 1511 | static void |
| 1512 | handle_101cXX(struct bregs *regs) |
| 1513 | { |
| 1514 | debug_stub(regs); |
| 1515 | } |
| 1516 | |
| 1517 | static void |
| 1518 | handle_101c(struct bregs *regs) |
| 1519 | { |
| 1520 | switch (regs->al) { |
| 1521 | case 0x00: handle_101c00(regs); break; |
| 1522 | case 0x01: handle_101c01(regs); break; |
| 1523 | case 0x02: handle_101c02(regs); break; |
| 1524 | default: handle_101cXX(regs); break; |
| 1525 | } |
| 1526 | } |
| 1527 | |
| 1528 | |
| 1529 | static void |
| 1530 | handle_104f00(struct bregs *regs) |
| 1531 | { |
| 1532 | // XXX - vbe_biosfn_return_controller_information(&AX,ES,DI); |
| 1533 | // XXX - OR cirrus_vesa_00h |
| 1534 | } |
| 1535 | |
| 1536 | static void |
| 1537 | handle_104f01(struct bregs *regs) |
| 1538 | { |
| 1539 | // XXX - vbe_biosfn_return_mode_information(&AX,CX,ES,DI); |
| 1540 | // XXX - OR cirrus_vesa_01h |
| 1541 | } |
| 1542 | |
| 1543 | static void |
| 1544 | handle_104f02(struct bregs *regs) |
| 1545 | { |
| 1546 | // XXX - vbe_biosfn_set_mode(&AX,BX,ES,DI); |
| 1547 | // XXX - OR cirrus_vesa_02h |
| 1548 | } |
| 1549 | |
| 1550 | static void |
| 1551 | handle_104f03(struct bregs *regs) |
| 1552 | { |
| 1553 | // XXX - vbe_biosfn_return_current_mode |
| 1554 | // XXX - OR cirrus_vesa_03h |
| 1555 | } |
| 1556 | |
| 1557 | static void |
| 1558 | handle_104f04(struct bregs *regs) |
| 1559 | { |
| 1560 | // XXX - vbe_biosfn_save_restore_state(&AX, CX, DX, ES, &BX); |
| 1561 | } |
| 1562 | |
| 1563 | static void |
| 1564 | handle_104f05(struct bregs *regs) |
| 1565 | { |
| 1566 | // XXX - vbe_biosfn_display_window_control |
| 1567 | // XXX - OR cirrus_vesa_05h |
| 1568 | } |
| 1569 | |
| 1570 | static void |
| 1571 | handle_104f06(struct bregs *regs) |
| 1572 | { |
| 1573 | // XXX - vbe_biosfn_set_get_logical_scan_line_length |
| 1574 | // XXX - OR cirrus_vesa_06h |
| 1575 | } |
| 1576 | |
| 1577 | static void |
| 1578 | handle_104f07(struct bregs *regs) |
| 1579 | { |
| 1580 | // XXX - vbe_biosfn_set_get_display_start |
| 1581 | // XXX - OR cirrus_vesa_07h |
| 1582 | } |
| 1583 | |
| 1584 | static void |
| 1585 | handle_104f08(struct bregs *regs) |
| 1586 | { |
| 1587 | // XXX - vbe_biosfn_set_get_dac_palette_format |
| 1588 | } |
| 1589 | |
| 1590 | static void |
| 1591 | handle_104f0a(struct bregs *regs) |
| 1592 | { |
| 1593 | // XXX - vbe_biosfn_return_protected_mode_interface |
| 1594 | } |
| 1595 | |
| 1596 | static void |
| 1597 | handle_104fXX(struct bregs *regs) |
| 1598 | { |
| 1599 | debug_stub(regs); |
| 1600 | regs->ax = 0x0100; |
| 1601 | } |
| 1602 | |
| 1603 | static void |
| 1604 | handle_104f(struct bregs *regs) |
| 1605 | { |
Kevin O'Connor | 99e08b7 | 2009-05-17 00:07:31 -0400 | [diff] [blame] | 1606 | if (! CONFIG_VBE || !vbe_has_vbe_display()) { |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1607 | handle_104fXX(regs); |
| 1608 | return; |
| 1609 | } |
| 1610 | |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1611 | switch (regs->al) { |
| 1612 | case 0x00: handle_104f00(regs); break; |
| 1613 | case 0x01: handle_104f01(regs); break; |
| 1614 | case 0x02: handle_104f02(regs); break; |
| 1615 | case 0x03: handle_104f03(regs); break; |
| 1616 | case 0x04: handle_104f04(regs); break; |
| 1617 | case 0x05: handle_104f05(regs); break; |
| 1618 | case 0x06: handle_104f06(regs); break; |
| 1619 | case 0x07: handle_104f07(regs); break; |
| 1620 | case 0x08: handle_104f08(regs); break; |
| 1621 | case 0x0a: handle_104f0a(regs); break; |
| 1622 | default: handle_104fXX(regs); break; |
| 1623 | } |
| 1624 | } |
| 1625 | |
| 1626 | |
| 1627 | static void |
| 1628 | handle_10XX(struct bregs *regs) |
| 1629 | { |
| 1630 | debug_stub(regs); |
| 1631 | } |
| 1632 | |
| 1633 | // INT 10h Video Support Service Entry Point |
| 1634 | void VISIBLE16 |
| 1635 | handle_10(struct bregs *regs) |
| 1636 | { |
| 1637 | debug_enter(regs, DEBUG_VGA_10); |
| 1638 | switch (regs->ah) { |
| 1639 | case 0x00: handle_1000(regs); break; |
| 1640 | case 0x01: handle_1001(regs); break; |
| 1641 | case 0x02: handle_1002(regs); break; |
| 1642 | case 0x03: handle_1003(regs); break; |
| 1643 | case 0x04: handle_1004(regs); break; |
| 1644 | case 0x05: handle_1005(regs); break; |
| 1645 | case 0x06: handle_1006(regs); break; |
| 1646 | case 0x07: handle_1007(regs); break; |
| 1647 | case 0x08: handle_1008(regs); break; |
| 1648 | case 0x09: handle_1009(regs); break; |
| 1649 | case 0x0a: handle_100a(regs); break; |
| 1650 | case 0x0b: handle_100b(regs); break; |
| 1651 | case 0x0c: handle_100c(regs); break; |
| 1652 | case 0x0d: handle_100d(regs); break; |
| 1653 | case 0x0e: handle_100e(regs); break; |
| 1654 | case 0x0f: handle_100f(regs); break; |
| 1655 | case 0x10: handle_1010(regs); break; |
| 1656 | case 0x11: handle_1011(regs); break; |
| 1657 | case 0x12: handle_1012(regs); break; |
| 1658 | case 0x13: handle_1013(regs); break; |
| 1659 | case 0x1a: handle_101a(regs); break; |
| 1660 | case 0x1b: handle_101b(regs); break; |
| 1661 | case 0x1c: handle_101c(regs); break; |
| 1662 | case 0x4f: handle_104f(regs); break; |
| 1663 | default: handle_10XX(regs); break; |
| 1664 | } |
| 1665 | } |
| 1666 | |
| 1667 | |
| 1668 | /**************************************************************** |
| 1669 | * VGA post |
| 1670 | ****************************************************************/ |
| 1671 | |
| 1672 | static void |
| 1673 | init_bios_area() |
| 1674 | { |
| 1675 | // init detected hardware BIOS Area |
| 1676 | // set 80x25 color (not clear from RBIL but usual) |
| 1677 | u16 eqf = GET_BDA(equipment_list_flags); |
| 1678 | SET_BDA(equipment_list_flags, (eqf & 0xffcf) | 0x20); |
| 1679 | |
| 1680 | // Just for the first int10 find its children |
| 1681 | |
| 1682 | // the default char height |
| 1683 | SET_BDA(char_height, 0x10); |
| 1684 | |
| 1685 | // Clear the screen |
| 1686 | SET_BDA(video_ctl, 0x60); |
| 1687 | |
| 1688 | // Set the basic screen we have |
| 1689 | SET_BDA(video_switches, 0xf9); |
| 1690 | |
| 1691 | // Set the basic modeset options |
| 1692 | SET_BDA(modeset_ctl, 0x51); |
| 1693 | |
| 1694 | // Set the default MSR |
| 1695 | SET_BDA(video_msr, 0x09); |
| 1696 | } |
| 1697 | |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1698 | void VISIBLE16 |
| 1699 | vga_post(struct bregs *regs) |
| 1700 | { |
| 1701 | debug_enter(regs, DEBUG_VGA_POST); |
| 1702 | |
| 1703 | init_vga_card(); |
| 1704 | |
| 1705 | init_bios_area(); |
| 1706 | |
Kevin O'Connor | 21079f4 | 2009-05-16 21:30:10 -0400 | [diff] [blame] | 1707 | if (CONFIG_VBE) |
| 1708 | vbe_init(); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1709 | |
| 1710 | extern void entry_10(void); |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 1711 | SET_IVT(0x10, get_global_seg(), (u32)entry_10); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1712 | |
| 1713 | if (CONFIG_CIRRUS) |
| 1714 | cirrus_init(); |
| 1715 | |
| 1716 | // XXX - clear screen and display info |
| 1717 | |
| 1718 | // XXX: fill it |
| 1719 | SET_VGA(video_save_pointer_table[0], (u32)video_param_table); |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 1720 | SET_VGA(video_save_pointer_table[1], get_global_seg()); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1721 | |
| 1722 | // Fixup checksum |
| 1723 | extern u8 _rom_header_size, _rom_header_checksum; |
| 1724 | SET_VGA(_rom_header_checksum, 0); |
Kevin O'Connor | d113a99 | 2009-05-16 21:05:02 -0400 | [diff] [blame] | 1725 | u8 sum = -checksum_far(get_global_seg(), 0, _rom_header_size * 512); |
Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1726 | SET_VGA(_rom_header_checksum, sum); |
| 1727 | } |