1 /*- 2 * Copyright (c) 1998 Michael Smith (msmith@freebsd.org) 3 * Copyright (c) 1997 Kazutaka YOKOTA (yokota@zodiac.mech.utsunomiya-u.ac.jp) 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * From: probe_keyboard.c,v 1.13 1997/06/09 05:10:55 bde Exp 28 */ 29 30 #include <stand.h> 31 #include <sys/param.h> 32 #include <bootstrap.h> 33 #include <btxv86.h> 34 #include <gfx_fb.h> 35 #include <teken.h> 36 #include "vbe.h" 37 38 #include <dev/vt/hw/vga/vt_vga_reg.h> 39 40 #include "libi386.h" 41 42 #if KEYBOARD_PROBE 43 static int probe_keyboard(void); 44 #endif 45 static void vidc_probe(struct console *cp); 46 static int vidc_init(int arg); 47 static void vidc_putchar(int c); 48 static int vidc_getchar(void); 49 static int vidc_ischar(void); 50 static void cons_draw_frame(teken_attr_t *); 51 52 static bool vidc_started; 53 static uint16_t *vgatext; 54 55 static tf_bell_t vidc_cons_bell; 56 static tf_cursor_t vidc_text_cursor; 57 static tf_putchar_t vidc_text_putchar; 58 static tf_fill_t vidc_text_fill; 59 static tf_copy_t vidc_text_copy; 60 static tf_param_t vidc_text_param; 61 static tf_respond_t vidc_cons_respond; 62 63 static teken_funcs_t tf = { 64 .tf_bell = vidc_cons_bell, 65 .tf_cursor = vidc_text_cursor, 66 .tf_putchar = vidc_text_putchar, 67 .tf_fill = vidc_text_fill, 68 .tf_copy = vidc_text_copy, 69 .tf_param = vidc_text_param, 70 .tf_respond = vidc_cons_respond, 71 }; 72 73 static teken_funcs_t tfx = { 74 .tf_bell = vidc_cons_bell, 75 .tf_cursor = gfx_fb_cursor, 76 .tf_putchar = gfx_fb_putchar, 77 .tf_fill = gfx_fb_fill, 78 .tf_copy = gfx_fb_copy, 79 .tf_param = gfx_fb_param, 80 .tf_respond = vidc_cons_respond, 81 }; 82 83 #define KEYBUFSZ 10 84 85 static uint8_t keybuf[KEYBUFSZ]; /* keybuf for extended codes */ 86 87 struct console vidconsole = { 88 .c_name = "vidconsole", 89 .c_desc = "internal video/keyboard", 90 .c_flags = 0, 91 .c_probe = vidc_probe, 92 .c_init = vidc_init, 93 .c_out = vidc_putchar, 94 .c_in = vidc_getchar, 95 .c_ready = vidc_ischar 96 }; 97 98 /* 99 * This function is used to mark a rectangular image area so the scrolling 100 * will know we need to copy the data from there. 101 */ 102 void 103 term_image_display(teken_gfx_t *state, const teken_rect_t *r) 104 { 105 teken_pos_t p; 106 int idx; 107 108 if (screen_buffer == NULL) 109 return; 110 111 for (p.tp_row = r->tr_begin.tp_row; 112 p.tp_row < r->tr_end.tp_row; p.tp_row++) { 113 for (p.tp_col = r->tr_begin.tp_col; 114 p.tp_col < r->tr_end.tp_col; p.tp_col++) { 115 idx = p.tp_col + p.tp_row * state->tg_tp.tp_col; 116 if (idx >= state->tg_tp.tp_col * state->tg_tp.tp_row) 117 return; 118 screen_buffer[idx].a.ta_format |= TF_IMAGE; 119 } 120 } 121 } 122 123 static void 124 vidc_text_set_cursor(teken_unit_t row, teken_unit_t col, bool visible) 125 { 126 uint16_t addr; 127 uint8_t msl, s, e; 128 129 msl = vga_get_crtc(VGA_REG_BASE, VGA_CRTC_MAX_SCAN_LINE) & 0x1f; 130 s = vga_get_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_START) & 0xC0; 131 e = vga_get_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_END); 132 133 if (visible == true) { 134 addr = row * TEXT_COLS + col; 135 vga_set_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_LOC_HIGH, addr >> 8); 136 vga_set_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_LOC_LOW, 137 addr & 0xff); 138 e = msl; 139 } else { 140 s |= (1<<5); 141 } 142 vga_set_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_START, s); 143 vga_set_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_END, e); 144 } 145 146 static void 147 vidc_text_get_cursor(teken_unit_t *row, teken_unit_t *col) 148 { 149 uint16_t addr; 150 151 addr = (vga_get_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_LOC_HIGH) << 8) + 152 vga_get_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_LOC_LOW); 153 154 *row = addr / TEXT_COLS; 155 *col = addr % TEXT_COLS; 156 } 157 158 /* 159 * Not implemented. 160 */ 161 static void 162 vidc_cons_bell(void *s __unused) 163 { 164 } 165 166 static void 167 vidc_text_cursor(void *s __unused, const teken_pos_t *p) 168 { 169 teken_unit_t row, col; 170 171 if (p->tp_col == TEXT_COLS) 172 col = p->tp_col - 1; 173 else 174 col = p->tp_col; 175 176 if (p->tp_row == TEXT_ROWS) 177 row = p->tp_row - 1; 178 else 179 row = p->tp_row; 180 181 vidc_text_set_cursor(row, col, true); 182 } 183 184 /* 185 * Binary searchable table for Unicode to CP437 conversion. 186 */ 187 struct unicp437 { 188 uint16_t unicode_base; 189 uint8_t cp437_base; 190 uint8_t length; 191 }; 192 193 static const struct unicp437 cp437table[] = { 194 { 0x0020, 0x20, 0x5e }, { 0x00a0, 0x20, 0x00 }, 195 { 0x00a1, 0xad, 0x00 }, { 0x00a2, 0x9b, 0x00 }, 196 { 0x00a3, 0x9c, 0x00 }, { 0x00a5, 0x9d, 0x00 }, 197 { 0x00a7, 0x15, 0x00 }, { 0x00aa, 0xa6, 0x00 }, 198 { 0x00ab, 0xae, 0x00 }, { 0x00ac, 0xaa, 0x00 }, 199 { 0x00b0, 0xf8, 0x00 }, { 0x00b1, 0xf1, 0x00 }, 200 { 0x00b2, 0xfd, 0x00 }, { 0x00b5, 0xe6, 0x00 }, 201 { 0x00b6, 0x14, 0x00 }, { 0x00b7, 0xfa, 0x00 }, 202 { 0x00ba, 0xa7, 0x00 }, { 0x00bb, 0xaf, 0x00 }, 203 { 0x00bc, 0xac, 0x00 }, { 0x00bd, 0xab, 0x00 }, 204 { 0x00bf, 0xa8, 0x00 }, { 0x00c4, 0x8e, 0x01 }, 205 { 0x00c6, 0x92, 0x00 }, { 0x00c7, 0x80, 0x00 }, 206 { 0x00c9, 0x90, 0x00 }, { 0x00d1, 0xa5, 0x00 }, 207 { 0x00d6, 0x99, 0x00 }, { 0x00dc, 0x9a, 0x00 }, 208 { 0x00df, 0xe1, 0x00 }, { 0x00e0, 0x85, 0x00 }, 209 { 0x00e1, 0xa0, 0x00 }, { 0x00e2, 0x83, 0x00 }, 210 { 0x00e4, 0x84, 0x00 }, { 0x00e5, 0x86, 0x00 }, 211 { 0x00e6, 0x91, 0x00 }, { 0x00e7, 0x87, 0x00 }, 212 { 0x00e8, 0x8a, 0x00 }, { 0x00e9, 0x82, 0x00 }, 213 { 0x00ea, 0x88, 0x01 }, { 0x00ec, 0x8d, 0x00 }, 214 { 0x00ed, 0xa1, 0x00 }, { 0x00ee, 0x8c, 0x00 }, 215 { 0x00ef, 0x8b, 0x00 }, { 0x00f0, 0xeb, 0x00 }, 216 { 0x00f1, 0xa4, 0x00 }, { 0x00f2, 0x95, 0x00 }, 217 { 0x00f3, 0xa2, 0x00 }, { 0x00f4, 0x93, 0x00 }, 218 { 0x00f6, 0x94, 0x00 }, { 0x00f7, 0xf6, 0x00 }, 219 { 0x00f8, 0xed, 0x00 }, { 0x00f9, 0x97, 0x00 }, 220 { 0x00fa, 0xa3, 0x00 }, { 0x00fb, 0x96, 0x00 }, 221 { 0x00fc, 0x81, 0x00 }, { 0x00ff, 0x98, 0x00 }, 222 { 0x0192, 0x9f, 0x00 }, { 0x0393, 0xe2, 0x00 }, 223 { 0x0398, 0xe9, 0x00 }, { 0x03a3, 0xe4, 0x00 }, 224 { 0x03a6, 0xe8, 0x00 }, { 0x03a9, 0xea, 0x00 }, 225 { 0x03b1, 0xe0, 0x01 }, { 0x03b4, 0xeb, 0x00 }, 226 { 0x03b5, 0xee, 0x00 }, { 0x03bc, 0xe6, 0x00 }, 227 { 0x03c0, 0xe3, 0x00 }, { 0x03c3, 0xe5, 0x00 }, 228 { 0x03c4, 0xe7, 0x00 }, { 0x03c6, 0xed, 0x00 }, 229 { 0x03d5, 0xed, 0x00 }, { 0x2010, 0x2d, 0x00 }, 230 { 0x2014, 0x2d, 0x00 }, { 0x2018, 0x60, 0x00 }, 231 { 0x2019, 0x27, 0x00 }, { 0x201c, 0x22, 0x00 }, 232 { 0x201d, 0x22, 0x00 }, { 0x2022, 0x07, 0x00 }, 233 { 0x203c, 0x13, 0x00 }, { 0x207f, 0xfc, 0x00 }, 234 { 0x20a7, 0x9e, 0x00 }, { 0x20ac, 0xee, 0x00 }, 235 { 0x2126, 0xea, 0x00 }, { 0x2190, 0x1b, 0x00 }, 236 { 0x2191, 0x18, 0x00 }, { 0x2192, 0x1a, 0x00 }, 237 { 0x2193, 0x19, 0x00 }, { 0x2194, 0x1d, 0x00 }, 238 { 0x2195, 0x12, 0x00 }, { 0x21a8, 0x17, 0x00 }, 239 { 0x2202, 0xeb, 0x00 }, { 0x2208, 0xee, 0x00 }, 240 { 0x2211, 0xe4, 0x00 }, { 0x2212, 0x2d, 0x00 }, 241 { 0x2219, 0xf9, 0x00 }, { 0x221a, 0xfb, 0x00 }, 242 { 0x221e, 0xec, 0x00 }, { 0x221f, 0x1c, 0x00 }, 243 { 0x2229, 0xef, 0x00 }, { 0x2248, 0xf7, 0x00 }, 244 { 0x2261, 0xf0, 0x00 }, { 0x2264, 0xf3, 0x00 }, 245 { 0x2265, 0xf2, 0x00 }, { 0x2302, 0x7f, 0x00 }, 246 { 0x2310, 0xa9, 0x00 }, { 0x2320, 0xf4, 0x00 }, 247 { 0x2321, 0xf5, 0x00 }, { 0x2500, 0xc4, 0x00 }, 248 { 0x2502, 0xb3, 0x00 }, { 0x250c, 0xda, 0x00 }, 249 { 0x2510, 0xbf, 0x00 }, { 0x2514, 0xc0, 0x00 }, 250 { 0x2518, 0xd9, 0x00 }, { 0x251c, 0xc3, 0x00 }, 251 { 0x2524, 0xb4, 0x00 }, { 0x252c, 0xc2, 0x00 }, 252 { 0x2534, 0xc1, 0x00 }, { 0x253c, 0xc5, 0x00 }, 253 { 0x2550, 0xcd, 0x00 }, { 0x2551, 0xba, 0x00 }, 254 { 0x2552, 0xd5, 0x00 }, { 0x2553, 0xd6, 0x00 }, 255 { 0x2554, 0xc9, 0x00 }, { 0x2555, 0xb8, 0x00 }, 256 { 0x2556, 0xb7, 0x00 }, { 0x2557, 0xbb, 0x00 }, 257 { 0x2558, 0xd4, 0x00 }, { 0x2559, 0xd3, 0x00 }, 258 { 0x255a, 0xc8, 0x00 }, { 0x255b, 0xbe, 0x00 }, 259 { 0x255c, 0xbd, 0x00 }, { 0x255d, 0xbc, 0x00 }, 260 { 0x255e, 0xc6, 0x01 }, { 0x2560, 0xcc, 0x00 }, 261 { 0x2561, 0xb5, 0x00 }, { 0x2562, 0xb6, 0x00 }, 262 { 0x2563, 0xb9, 0x00 }, { 0x2564, 0xd1, 0x01 }, 263 { 0x2566, 0xcb, 0x00 }, { 0x2567, 0xcf, 0x00 }, 264 { 0x2568, 0xd0, 0x00 }, { 0x2569, 0xca, 0x00 }, 265 { 0x256a, 0xd8, 0x00 }, { 0x256b, 0xd7, 0x00 }, 266 { 0x256c, 0xce, 0x00 }, { 0x2580, 0xdf, 0x00 }, 267 { 0x2584, 0xdc, 0x00 }, { 0x2588, 0xdb, 0x00 }, 268 { 0x258c, 0xdd, 0x00 }, { 0x2590, 0xde, 0x00 }, 269 { 0x2591, 0xb0, 0x02 }, { 0x25a0, 0xfe, 0x00 }, 270 { 0x25ac, 0x16, 0x00 }, { 0x25b2, 0x1e, 0x00 }, 271 { 0x25ba, 0x10, 0x00 }, { 0x25bc, 0x1f, 0x00 }, 272 { 0x25c4, 0x11, 0x00 }, { 0x25cb, 0x09, 0x00 }, 273 { 0x25d8, 0x08, 0x00 }, { 0x25d9, 0x0a, 0x00 }, 274 { 0x263a, 0x01, 0x01 }, { 0x263c, 0x0f, 0x00 }, 275 { 0x2640, 0x0c, 0x00 }, { 0x2642, 0x0b, 0x00 }, 276 { 0x2660, 0x06, 0x00 }, { 0x2663, 0x05, 0x00 }, 277 { 0x2665, 0x03, 0x01 }, { 0x266a, 0x0d, 0x00 }, 278 { 0x266c, 0x0e, 0x00 } 279 }; 280 281 static uint8_t 282 vga_get_cp437(teken_char_t c) 283 { 284 int min, mid, max; 285 286 min = 0; 287 max = (sizeof(cp437table) / sizeof(struct unicp437)) - 1; 288 289 if (c < cp437table[0].unicode_base || 290 c > cp437table[max].unicode_base + cp437table[max].length) 291 return ('?'); 292 293 while (max >= min) { 294 mid = (min + max) / 2; 295 if (c < cp437table[mid].unicode_base) 296 max = mid - 1; 297 else if (c > cp437table[mid].unicode_base + 298 cp437table[mid].length) 299 min = mid + 1; 300 else 301 return (c - cp437table[mid].unicode_base + 302 cp437table[mid].cp437_base); 303 } 304 305 return ('?'); 306 } 307 308 static void 309 vidc_text_printchar(teken_gfx_t *state, const teken_pos_t *p) 310 { 311 int idx; 312 uint8_t attr; 313 struct text_pixel *px; 314 teken_color_t fg, bg, tmp; 315 struct cgatext { 316 uint8_t ch; 317 uint8_t attr; 318 } *addr; 319 320 idx = p->tp_col + p->tp_row * state->tg_tp.tp_col; 321 px = &screen_buffer[idx]; 322 fg = teken_256to16(px->a.ta_fgcolor); 323 bg = teken_256to16(px->a.ta_bgcolor); 324 if (px->a.ta_format & TF_BOLD) 325 fg |= TC_LIGHT; 326 if (px->a.ta_format & TF_BLINK) 327 bg |= TC_LIGHT; 328 329 if (px->a.ta_format & TF_REVERSE) { 330 tmp = fg; 331 fg = bg; 332 bg = tmp; 333 } 334 335 attr = (cmap[bg & 0xf] << 4) | cmap[fg & 0xf]; 336 addr = (struct cgatext *)vgatext; 337 addr[idx].ch = vga_get_cp437(px->c); 338 addr[idx].attr = attr; 339 } 340 341 static void 342 vidc_text_putchar(void *s, const teken_pos_t *p, teken_char_t c, 343 const teken_attr_t *a) 344 { 345 teken_gfx_t *state = s; 346 int attr, idx; 347 348 idx = p->tp_col + p->tp_row * state->tg_tp.tp_col; 349 if (idx >= state->tg_tp.tp_col * state->tg_tp.tp_row) 350 return; 351 352 screen_buffer[idx].c = c; 353 screen_buffer[idx].a = *a; 354 355 vidc_text_printchar(state, p); 356 } 357 358 static void 359 vidc_text_fill(void *arg, const teken_rect_t *r, teken_char_t c, 360 const teken_attr_t *a) 361 { 362 teken_gfx_t *state = arg; 363 teken_pos_t p; 364 teken_unit_t row, col; 365 366 vidc_text_get_cursor(&row, &col); 367 vidc_text_set_cursor(row, col, false); 368 for (p.tp_row = r->tr_begin.tp_row; p.tp_row < r->tr_end.tp_row; 369 p.tp_row++) 370 for (p.tp_col = r->tr_begin.tp_col; 371 p.tp_col < r->tr_end.tp_col; p.tp_col++) 372 vidc_text_putchar(state, &p, c, a); 373 vidc_text_set_cursor(row, col, true); 374 } 375 376 static void 377 vidc_text_copy(void *ptr, const teken_rect_t *r, const teken_pos_t *p) 378 { 379 teken_gfx_t *state = ptr; 380 int srow, drow; 381 int nrow, ncol, x, y; /* Has to be signed - >= 0 comparison */ 382 teken_pos_t d, s; 383 teken_unit_t row, col; 384 385 /* 386 * Copying is a little tricky. We must make sure we do it in 387 * correct order, to make sure we don't overwrite our own data. 388 */ 389 390 nrow = r->tr_end.tp_row - r->tr_begin.tp_row; 391 ncol = r->tr_end.tp_col - r->tr_begin.tp_col; 392 393 vidc_text_get_cursor(&row, &col); 394 vidc_text_set_cursor(row, col, false); 395 if (p->tp_row < r->tr_begin.tp_row) { 396 /* Copy from bottom to top. */ 397 for (y = 0; y < nrow; y++) { 398 d.tp_row = p->tp_row + y; 399 s.tp_row = r->tr_begin.tp_row + y; 400 drow = d.tp_row * state->tg_tp.tp_col; 401 srow = s.tp_row * state->tg_tp.tp_col; 402 for (x = 0; x < ncol; x++) { 403 d.tp_col = p->tp_col + x; 404 s.tp_col = r->tr_begin.tp_col + x; 405 406 if (!is_same_pixel( 407 &screen_buffer[d.tp_col + drow], 408 &screen_buffer[s.tp_col + srow])) { 409 screen_buffer[d.tp_col + drow] = 410 screen_buffer[s.tp_col + srow]; 411 vidc_text_printchar(state, &d); 412 } 413 } 414 } 415 } else { 416 /* Copy from top to bottom. */ 417 if (p->tp_col < r->tr_begin.tp_col) { 418 /* Copy from right to left. */ 419 for (y = nrow - 1; y >= 0; y--) { 420 d.tp_row = p->tp_row + y; 421 s.tp_row = r->tr_begin.tp_row + y; 422 drow = d.tp_row * state->tg_tp.tp_col; 423 srow = s.tp_row * state->tg_tp.tp_col; 424 for (x = 0; x < ncol; x++) { 425 d.tp_col = p->tp_col + x; 426 s.tp_col = r->tr_begin.tp_col + x; 427 428 if (!is_same_pixel( 429 &screen_buffer[d.tp_col + drow], 430 &screen_buffer[s.tp_col + srow])) { 431 screen_buffer[d.tp_col + drow] = 432 screen_buffer[s.tp_col + srow]; 433 vidc_text_printchar(state, &d); 434 } 435 } 436 } 437 } else { 438 /* Copy from left to right. */ 439 for (y = nrow - 1; y >= 0; y--) { 440 d.tp_row = p->tp_row + y; 441 s.tp_row = r->tr_begin.tp_row + y; 442 drow = d.tp_row * state->tg_tp.tp_col; 443 srow = s.tp_row * state->tg_tp.tp_col; 444 for (x = ncol - 1; x >= 0; x--) { 445 d.tp_col = p->tp_col + x; 446 s.tp_col = r->tr_begin.tp_col + x; 447 448 if (!is_same_pixel( 449 &screen_buffer[d.tp_col + drow], 450 &screen_buffer[s.tp_col + srow])) { 451 screen_buffer[d.tp_col + drow] = 452 screen_buffer[s.tp_col + srow]; 453 vidc_text_printchar(state, &d); 454 } 455 } 456 } 457 } 458 } 459 vidc_text_set_cursor(row, col, true); 460 } 461 462 static void 463 vidc_text_param(void *arg, int cmd, unsigned int value) 464 { 465 teken_gfx_t *state = arg; 466 teken_unit_t row, col; 467 468 switch (cmd) { 469 case TP_SETLOCALCURSOR: 470 /* 471 * 0 means normal (usually block), 1 means hidden, and 472 * 2 means blinking (always block) for compatibility with 473 * syscons. We don't support any changes except hiding, 474 * so must map 2 to 0. 475 */ 476 value = (value == 1) ? 0 : 1; 477 /* FALLTHROUGH */ 478 case TP_SHOWCURSOR: 479 vidc_text_get_cursor(&row, &col); 480 if (value != 0) { 481 vidc_text_set_cursor(row, col, true); 482 state->tg_cursor_visible = true; 483 } else { 484 vidc_text_set_cursor(row, col, false); 485 state->tg_cursor_visible = false; 486 } 487 break; 488 default: 489 /* Not yet implemented */ 490 break; 491 } 492 } 493 494 /* 495 * Not implemented. 496 */ 497 static void 498 vidc_cons_respond(void *s __unused, const void *buf __unused, 499 size_t len __unused) 500 { 501 } 502 503 static void 504 vidc_probe(struct console *cp) 505 { 506 507 /* look for a keyboard */ 508 #if KEYBOARD_PROBE 509 if (probe_keyboard()) 510 #endif 511 { 512 513 cp->c_flags |= C_PRESENTIN; 514 } 515 516 /* XXX for now, always assume we can do BIOS screen output */ 517 cp->c_flags |= C_PRESENTOUT; 518 } 519 520 static bool 521 color_name_to_teken(const char *name, int *val) 522 { 523 int light = 0; 524 if (strncasecmp(name, "light", 5) == 0) { 525 name += 5; 526 light = TC_LIGHT; 527 } else if (strncasecmp(name, "bright", 6) == 0) { 528 name += 6; 529 light = TC_LIGHT; 530 } 531 if (strcasecmp(name, "black") == 0) { 532 *val = TC_BLACK | light; 533 return (true); 534 } 535 if (strcasecmp(name, "red") == 0) { 536 *val = TC_RED | light; 537 return (true); 538 } 539 if (strcasecmp(name, "green") == 0) { 540 *val = TC_GREEN | light; 541 return (true); 542 } 543 if (strcasecmp(name, "yellow") == 0 || strcasecmp(name, "brown") == 0) { 544 *val = TC_YELLOW | light; 545 return (true); 546 } 547 if (strcasecmp(name, "blue") == 0) { 548 *val = TC_BLUE | light; 549 return (true); 550 } 551 if (strcasecmp(name, "magenta") == 0) { 552 *val = TC_MAGENTA | light; 553 return (true); 554 } 555 if (strcasecmp(name, "cyan") == 0) { 556 *val = TC_CYAN | light; 557 return (true); 558 } 559 if (strcasecmp(name, "white") == 0) { 560 *val = TC_WHITE | light; 561 return (true); 562 } 563 return (false); 564 } 565 566 static int 567 vidc_set_colors(struct env_var *ev, int flags, const void *value) 568 { 569 int val = 0; 570 char buf[3]; 571 const void *evalue; 572 const teken_attr_t *ap; 573 teken_attr_t a; 574 575 if (value == NULL) 576 return (CMD_OK); 577 578 if (color_name_to_teken(value, &val)) { 579 snprintf(buf, sizeof (buf), "%d", val); 580 evalue = buf; 581 } else { 582 char *end; 583 long lval; 584 585 errno = 0; 586 lval = strtol(value, &end, 0); 587 if (errno != 0 || *end != '\0' || lval < 0 || lval > 15) { 588 printf("Allowed values are either ansi color name or " 589 "number from range [0-15].\n"); 590 return (CMD_OK); 591 } 592 val = (int)lval; 593 evalue = value; 594 } 595 596 ap = teken_get_defattr(&gfx_state.tg_teken); 597 a = *ap; 598 if (strcmp(ev->ev_name, "teken.fg_color") == 0) { 599 /* is it already set? */ 600 if (ap->ta_fgcolor == val) 601 return (CMD_OK); 602 a.ta_fgcolor = val; 603 } 604 if (strcmp(ev->ev_name, "teken.bg_color") == 0) { 605 /* is it already set? */ 606 if (ap->ta_bgcolor == val) 607 return (CMD_OK); 608 a.ta_bgcolor = val; 609 } 610 611 /* Improve visibility */ 612 if (a.ta_bgcolor == TC_WHITE) 613 a.ta_bgcolor |= TC_LIGHT; 614 615 teken_set_defattr(&gfx_state.tg_teken, &a); 616 cons_draw_frame(&a); 617 env_setenv(ev->ev_name, flags | EV_NOHOOK, evalue, NULL, NULL); 618 teken_input(&gfx_state.tg_teken, "\e[2J", 4); 619 620 return (CMD_OK); 621 } 622 623 static int 624 env_screen_nounset(struct env_var *ev __unused) 625 { 626 if (gfx_state.tg_fb_type == FB_TEXT) 627 return (0); 628 return (EPERM); 629 } 630 631 static int 632 vidc_load_palette(void) 633 { 634 int i, roff, goff, boff, rc; 635 636 if (pe8 == NULL) 637 pe8 = calloc(sizeof(*pe8), NCMAP); 638 if (pe8 == NULL) 639 return (ENOMEM); 640 641 /* Generate VGA colors */ 642 roff = ffs(gfx_state.tg_fb.fb_mask_red) - 1; 643 goff = ffs(gfx_state.tg_fb.fb_mask_green) - 1; 644 boff = ffs(gfx_state.tg_fb.fb_mask_blue) - 1; 645 rc = generate_cons_palette((uint32_t *)pe8, COLOR_FORMAT_RGB, 646 gfx_state.tg_fb.fb_mask_red >> roff, roff, 647 gfx_state.tg_fb.fb_mask_green >> goff, goff, 648 gfx_state.tg_fb.fb_mask_blue >> boff, boff); 649 650 if (rc == 0) { 651 for (i = 0; i < NCMAP; i++) { 652 int idx; 653 654 if (i < NCOLORS) 655 idx = cons_to_vga_colors[i]; 656 else 657 idx = i; 658 659 rc = vbe_set_palette(&pe8[i], idx); 660 if (rc != 0) 661 break; 662 } 663 } 664 return (rc); 665 } 666 667 static void 668 cons_draw_frame(teken_attr_t *a) 669 { 670 teken_attr_t attr = *a; 671 teken_color_t fg = a->ta_fgcolor; 672 673 attr.ta_fgcolor = attr.ta_bgcolor; 674 teken_set_defattr(&gfx_state.tg_teken, &attr); 675 676 gfx_fb_drawrect(0, 0, gfx_state.tg_fb.fb_width, 677 gfx_state.tg_origin.tp_row, 1); 678 gfx_fb_drawrect(0, 679 gfx_state.tg_fb.fb_height - gfx_state.tg_origin.tp_row - 1, 680 gfx_state.tg_fb.fb_width, gfx_state.tg_fb.fb_height, 1); 681 gfx_fb_drawrect(0, gfx_state.tg_origin.tp_row, 682 gfx_state.tg_origin.tp_col, 683 gfx_state.tg_fb.fb_height - gfx_state.tg_origin.tp_row - 1, 1); 684 gfx_fb_drawrect( 685 gfx_state.tg_fb.fb_width - gfx_state.tg_origin.tp_col - 1, 686 gfx_state.tg_origin.tp_row, gfx_state.tg_fb.fb_width, 687 gfx_state.tg_fb.fb_height, 1); 688 689 attr.ta_fgcolor = fg; 690 teken_set_defattr(&gfx_state.tg_teken, &attr); 691 } 692 693 /* 694 * Binary searchable table for CP437 to Unicode conversion. 695 */ 696 struct cp437uni { 697 uint8_t cp437_base; 698 uint16_t unicode_base; 699 uint8_t length; 700 }; 701 702 static const struct cp437uni cp437unitable[] = { 703 { 0, 0x0000, 0 }, { 1, 0x263A, 1 }, { 3, 0x2665, 1 }, 704 { 5, 0x2663, 0 }, { 6, 0x2660, 0 }, { 7, 0x2022, 0 }, 705 { 8, 0x25D8, 0 }, { 9, 0x25CB, 0 }, { 10, 0x25D9, 0 }, 706 { 11, 0x2642, 0 }, { 12, 0x2640, 0 }, { 13, 0x266A, 1 }, 707 { 15, 0x263C, 0 }, { 16, 0x25BA, 0 }, { 17, 0x25C4, 0 }, 708 { 18, 0x2195, 0 }, { 19, 0x203C, 0 }, { 20, 0x00B6, 0 }, 709 { 21, 0x00A7, 0 }, { 22, 0x25AC, 0 }, { 23, 0x21A8, 0 }, 710 { 24, 0x2191, 0 }, { 25, 0x2193, 0 }, { 26, 0x2192, 0 }, 711 { 27, 0x2190, 0 }, { 28, 0x221F, 0 }, { 29, 0x2194, 0 }, 712 { 30, 0x25B2, 0 }, { 31, 0x25BC, 0 }, { 32, 0x0020, 0x5e }, 713 { 127, 0x2302, 0 }, { 128, 0x00C7, 0 }, { 129, 0x00FC, 0 }, 714 { 130, 0x00E9, 0 }, { 131, 0x00E2, 0 }, { 132, 0x00E4, 0 }, 715 { 133, 0x00E0, 0 }, { 134, 0x00E5, 0 }, { 135, 0x00E7, 0 }, 716 { 136, 0x00EA, 1 }, { 138, 0x00E8, 0 }, { 139, 0x00EF, 0 }, 717 { 140, 0x00EE, 0 }, { 141, 0x00EC, 0 }, { 142, 0x00C4, 1 }, 718 { 144, 0x00C9, 0 }, { 145, 0x00E6, 0 }, { 146, 0x00C6, 0 }, 719 { 147, 0x00F4, 0 }, { 148, 0x00F6, 0 }, { 149, 0x00F2, 0 }, 720 { 150, 0x00FB, 0 }, { 151, 0x00F9, 0 }, { 152, 0x00FF, 0 }, 721 { 153, 0x00D6, 0 }, { 154, 0x00DC, 0 }, { 155, 0x00A2, 1 }, 722 { 157, 0x00A5, 0 }, { 158, 0x20A7, 0 }, { 159, 0x0192, 0 }, 723 { 160, 0x00E1, 0 }, { 161, 0x00ED, 0 }, { 162, 0x00F3, 0 }, 724 { 163, 0x00FA, 0 }, { 164, 0x00F1, 0 }, { 165, 0x00D1, 0 }, 725 { 166, 0x00AA, 0 }, { 167, 0x00BA, 0 }, { 168, 0x00BF, 0 }, 726 { 169, 0x2310, 0 }, { 170, 0x00AC, 0 }, { 171, 0x00BD, 0 }, 727 { 172, 0x00BC, 0 }, { 173, 0x00A1, 0 }, { 174, 0x00AB, 0 }, 728 { 175, 0x00BB, 0 }, { 176, 0x2591, 2 }, { 179, 0x2502, 0 }, 729 { 180, 0x2524, 0 }, { 181, 0x2561, 1 }, { 183, 0x2556, 0 }, 730 { 184, 0x2555, 0 }, { 185, 0x2563, 0 }, { 186, 0x2551, 0 }, 731 { 187, 0x2557, 0 }, { 188, 0x255D, 0 }, { 189, 0x255C, 0 }, 732 { 190, 0x255B, 0 }, { 191, 0x2510, 0 }, { 192, 0x2514, 0 }, 733 { 193, 0x2534, 0 }, { 194, 0x252C, 0 }, { 195, 0x251C, 0 }, 734 { 196, 0x2500, 0 }, { 197, 0x253C, 0 }, { 198, 0x255E, 1 }, 735 { 200, 0x255A, 0 }, { 201, 0x2554, 0 }, { 202, 0x2569, 0 }, 736 { 203, 0x2566, 0 }, { 204, 0x2560, 0 }, { 205, 0x2550, 0 }, 737 { 206, 0x256C, 0 }, { 207, 0x2567, 1 }, { 209, 0x2564, 1 }, 738 { 211, 0x2559, 0 }, { 212, 0x2558, 0 }, { 213, 0x2552, 1 }, 739 { 215, 0x256B, 0 }, { 216, 0x256A, 0 }, { 217, 0x2518, 0 }, 740 { 218, 0x250C, 0 }, { 219, 0x2588, 0 }, { 220, 0x2584, 0 }, 741 { 221, 0x258C, 0 }, { 222, 0x2590, 0 }, { 223, 0x2580, 0 }, 742 { 224, 0x03B1, 0 }, { 225, 0x00DF, 0 }, { 226, 0x0393, 0 }, 743 { 227, 0x03C0, 0 }, { 228, 0x03A3, 0 }, { 229, 0x03C3, 0 }, 744 { 230, 0x00B5, 0 }, { 231, 0x03C4, 0 }, { 232, 0x03A6, 0 }, 745 { 233, 0x0398, 0 }, { 234, 0x03A9, 0 }, { 235, 0x03B4, 0 }, 746 { 236, 0x221E, 0 }, { 237, 0x03C6, 0 }, { 238, 0x03B5, 0 }, 747 { 239, 0x2229, 0 }, { 240, 0x2261, 0 }, { 241, 0x00B1, 0 }, 748 { 242, 0x2265, 0 }, { 243, 0x2264, 0 }, { 244, 0x2320, 1 }, 749 { 246, 0x00F7, 0 }, { 247, 0x2248, 0 }, { 248, 0x00B0, 0 }, 750 { 249, 0x2219, 0 }, { 250, 0x00B7, 0 }, { 251, 0x221A, 0 }, 751 { 252, 0x207F, 0 }, { 253, 0x00B2, 0 }, { 254, 0x25A0, 0 }, 752 { 255, 0x00A0, 0 } 753 }; 754 755 static uint16_t 756 vga_cp437_to_uni(uint8_t c) 757 { 758 int min, mid, max; 759 760 min = 0; 761 max = (sizeof(cp437unitable) / sizeof(struct cp437uni)) - 1; 762 763 while (max >= min) { 764 mid = (min + max) / 2; 765 if (c < cp437unitable[mid].cp437_base) 766 max = mid - 1; 767 else if (c > cp437unitable[mid].cp437_base + 768 cp437unitable[mid].length) 769 min = mid + 1; 770 else 771 return (c - cp437unitable[mid].cp437_base + 772 cp437unitable[mid].unicode_base); 773 } 774 775 return ('?'); 776 } 777 778 /* 779 * install font for text mode 780 */ 781 static void 782 vidc_install_font(void) 783 { 784 uint8_t reg[7]; 785 const uint8_t *from; 786 uint8_t volatile *to; 787 uint16_t c; 788 int i, j, s; 789 int bpc, f_offset; 790 teken_attr_t a = { 0 }; 791 792 /* We can only program VGA registers. */ 793 if (!vbe_is_vga()) 794 return; 795 796 if (gfx_state.tg_fb_type != FB_TEXT) 797 return; 798 799 /* Sync-reset the sequencer registers */ 800 vga_set_seq(VGA_REG_BASE, VGA_SEQ_RESET, VGA_SEQ_RST_NAR); 801 802 reg[0] = vga_get_seq(VGA_REG_BASE, VGA_SEQ_MAP_MASK); 803 reg[1] = vga_get_seq(VGA_REG_BASE, VGA_SEQ_CLOCKING_MODE); 804 reg[2] = vga_get_seq(VGA_REG_BASE, VGA_SEQ_MEMORY_MODE); 805 reg[3] = vga_get_grc(VGA_REG_BASE, VGA_GC_READ_MAP_SELECT); 806 reg[4] = vga_get_grc(VGA_REG_BASE, VGA_GC_MODE); 807 reg[5] = vga_get_grc(VGA_REG_BASE, VGA_GC_MISCELLANEOUS); 808 reg[6] = vga_get_atr(VGA_REG_BASE, VGA_AC_MODE_CONTROL); 809 810 /* Screen off */ 811 vga_set_seq(VGA_REG_BASE, VGA_SEQ_CLOCKING_MODE, 812 reg[1] | VGA_SEQ_CM_SO); 813 814 /* 815 * enable write to plane2, since fonts 816 * could only be loaded into plane2 817 */ 818 vga_set_seq(VGA_REG_BASE, VGA_SEQ_MAP_MASK, VGA_SEQ_MM_EM2); 819 /* 820 * sequentially access data in the bit map being 821 * selected by MapMask register (index 0x02) 822 */ 823 vga_set_seq(VGA_REG_BASE, VGA_SEQ_MEMORY_MODE, 0x07); 824 /* Sync-reset ended, and allow the sequencer to operate */ 825 vga_set_seq(VGA_REG_BASE, VGA_SEQ_RESET, 826 VGA_SEQ_RST_SR | VGA_SEQ_RST_NAR); 827 828 /* 829 * select plane 2 on Read Mode 0 830 */ 831 vga_set_grc(VGA_REG_BASE, VGA_GC_READ_MAP_SELECT, 0x02); 832 /* 833 * system addresses sequentially access data, follow 834 * Memory Mode register bit 2 in the sequencer 835 */ 836 vga_set_grc(VGA_REG_BASE, VGA_GC_MODE, 0x00); 837 /* 838 * set range of host memory addresses decoded by VGA 839 * hardware -- A0000h-BFFFFh (128K region) 840 */ 841 vga_set_grc(VGA_REG_BASE, VGA_GC_MISCELLANEOUS, 0x00); 842 843 /* 844 * This assumes 8x16 characters, which yield the traditional 80x25 845 * screen. 846 */ 847 bpc = 16; 848 s = 0; /* font slot, maybe should use tunable there. */ 849 f_offset = s * 8 * 1024; 850 for (i = 0; i < 256; i++) { 851 c = vga_cp437_to_uni(i); 852 from = font_lookup(&gfx_state.tg_font, c, &a); 853 to = (unsigned char *)ptov(VGA_MEM_BASE) + f_offset + 854 i * 0x20; 855 for (j = 0; j < bpc; j++) 856 *to++ = *from++; 857 } 858 859 vga_set_atr(VGA_REG_BASE, VGA_AC_MODE_CONTROL, reg[6]); 860 861 /* Sync-reset the sequencer registers */ 862 vga_set_seq(VGA_REG_BASE, VGA_SEQ_RESET, VGA_SEQ_RST_NAR); 863 vga_set_seq(VGA_REG_BASE, VGA_SEQ_MAP_MASK, reg[0]); 864 vga_set_seq(VGA_REG_BASE, VGA_SEQ_MEMORY_MODE, reg[2]); 865 /* Sync-reset ended, and allow the sequencer to operate */ 866 vga_set_seq(VGA_REG_BASE, VGA_SEQ_RESET, 867 VGA_SEQ_RST_SR | VGA_SEQ_RST_NAR); 868 869 /* restore graphic registers */ 870 vga_set_grc(VGA_REG_BASE, VGA_GC_READ_MAP_SELECT, reg[3]); 871 vga_set_grc(VGA_REG_BASE, VGA_GC_MODE, reg[4]); 872 vga_set_grc(VGA_REG_BASE, VGA_GC_MISCELLANEOUS, (reg[5] & 0x03) | 0x0c); 873 874 /* Screen on */ 875 vga_set_seq(VGA_REG_BASE, VGA_SEQ_CLOCKING_MODE, reg[1] & 0xdf); 876 } 877 878 bool 879 cons_update_mode(bool use_gfx_mode) 880 { 881 const teken_attr_t *a; 882 teken_attr_t attr; 883 char env[10], *ptr; 884 int format, roff, goff, boff; 885 886 /* vidc_init() is not called yet. */ 887 if (!vidc_started) 888 return (false); 889 890 gfx_state.tg_tp.tp_row = TEXT_ROWS; 891 gfx_state.tg_tp.tp_col = TEXT_COLS; 892 893 if (use_gfx_mode) { 894 setup_font(&gfx_state, gfx_state.tg_fb.fb_height, 895 gfx_state.tg_fb.fb_width); 896 /* Point of origin in pixels. */ 897 gfx_state.tg_origin.tp_row = (gfx_state.tg_fb.fb_height - 898 (gfx_state.tg_tp.tp_row * gfx_state.tg_font.vf_height)) / 2; 899 gfx_state.tg_origin.tp_col = (gfx_state.tg_fb.fb_width - 900 (gfx_state.tg_tp.tp_col * gfx_state.tg_font.vf_width)) / 2; 901 902 gfx_state.tg_glyph_size = gfx_state.tg_font.vf_height * 903 gfx_state.tg_font.vf_width * 4; 904 free(gfx_state.tg_glyph); 905 gfx_state.tg_glyph = malloc(gfx_state.tg_glyph_size); 906 if (gfx_state.tg_glyph == NULL) 907 return (false); 908 gfx_state.tg_functions = &tfx; 909 snprintf(env, sizeof (env), "%d", gfx_state.tg_fb.fb_height); 910 env_setenv("screen.height", EV_VOLATILE | EV_NOHOOK, env, 911 env_noset, env_screen_nounset); 912 snprintf(env, sizeof (env), "%d", gfx_state.tg_fb.fb_width); 913 env_setenv("screen.width", EV_VOLATILE | EV_NOHOOK, env, 914 env_noset, env_screen_nounset); 915 snprintf(env, sizeof (env), "%d", gfx_state.tg_fb.fb_bpp); 916 env_setenv("screen.depth", EV_VOLATILE | EV_NOHOOK, env, 917 env_noset, env_screen_nounset); 918 } else { 919 /* Trigger loading of 8x16 font. */ 920 setup_font(&gfx_state, 921 16 * gfx_state.tg_fb.fb_height, 922 8 * gfx_state.tg_fb.fb_width); 923 gfx_state.tg_functions = &tf; 924 /* ensure the following are not set for text mode */ 925 unsetenv("screen.height"); 926 unsetenv("screen.width"); 927 unsetenv("screen.depth"); 928 vidc_install_font(); 929 } 930 931 free(screen_buffer); 932 screen_buffer = malloc(gfx_state.tg_tp.tp_row * gfx_state.tg_tp.tp_col * 933 sizeof(*screen_buffer)); 934 if (screen_buffer == NULL) 935 return (false); 936 937 teken_init(&gfx_state.tg_teken, gfx_state.tg_functions, &gfx_state); 938 939 if (gfx_state.tg_ctype == CT_INDEXED) 940 format = COLOR_FORMAT_VGA; 941 else 942 format = COLOR_FORMAT_RGB; 943 944 roff = ffs(gfx_state.tg_fb.fb_mask_red) - 1; 945 goff = ffs(gfx_state.tg_fb.fb_mask_green) - 1; 946 boff = ffs(gfx_state.tg_fb.fb_mask_blue) - 1; 947 (void) generate_cons_palette(cmap, format, 948 gfx_state.tg_fb.fb_mask_red >> roff, roff, 949 gfx_state.tg_fb.fb_mask_green >> goff, goff, 950 gfx_state.tg_fb.fb_mask_blue >> boff, boff); 951 952 if (gfx_state.tg_ctype == CT_INDEXED && use_gfx_mode) 953 vidc_load_palette(); 954 955 teken_set_winsize(&gfx_state.tg_teken, &gfx_state.tg_tp); 956 a = teken_get_defattr(&gfx_state.tg_teken); 957 attr = *a; 958 959 /* 960 * On first run, we set up the vidc_set_colors() 961 * callback. If the env is already set, we 962 * pick up fg and bg color values from the environment. 963 */ 964 ptr = getenv("teken.fg_color"); 965 if (ptr != NULL) { 966 attr.ta_fgcolor = strtol(ptr, NULL, 10); 967 ptr = getenv("teken.bg_color"); 968 attr.ta_bgcolor = strtol(ptr, NULL, 10); 969 970 teken_set_defattr(&gfx_state.tg_teken, &attr); 971 } else { 972 snprintf(env, sizeof(env), "%d", attr.ta_fgcolor); 973 env_setenv("teken.fg_color", EV_VOLATILE, env, 974 vidc_set_colors, env_nounset); 975 snprintf(env, sizeof(env), "%d", attr.ta_bgcolor); 976 env_setenv("teken.bg_color", EV_VOLATILE, env, 977 vidc_set_colors, env_nounset); 978 } 979 980 /* Improve visibility */ 981 if (attr.ta_bgcolor == TC_WHITE) 982 attr.ta_bgcolor |= TC_LIGHT; 983 teken_set_defattr(&gfx_state.tg_teken, &attr); 984 985 snprintf(env, sizeof (env), "%u", (unsigned)gfx_state.tg_tp.tp_row); 986 setenv("LINES", env, 1); 987 snprintf(env, sizeof (env), "%u", (unsigned)gfx_state.tg_tp.tp_col); 988 setenv("COLUMNS", env, 1); 989 990 /* Draw frame around terminal area. */ 991 cons_draw_frame(&attr); 992 /* Erase display, this will also fill our screen buffer. */ 993 teken_input(&gfx_state.tg_teken, "\e[2J", 4); 994 gfx_state.tg_functions->tf_param(&gfx_state, TP_SHOWCURSOR, 1); 995 996 return (true); 997 } 998 999 static int 1000 vidc_init(int arg) 1001 { 1002 const teken_attr_t *a; 1003 int val; 1004 char env[8]; 1005 1006 if (vidc_started && arg == 0) 1007 return (0); 1008 1009 vidc_started = true; 1010 vbe_init(); 1011 1012 /* 1013 * Check Miscellaneous Output Register (Read at 3CCh, Write at 3C2h) 1014 * for bit 1 (Input/Output Address Select), which means 1015 * color/graphics adapter. 1016 */ 1017 if (vga_get_reg(VGA_REG_BASE, VGA_GEN_MISC_OUTPUT_R) & VGA_GEN_MO_IOA) 1018 vgatext = (uint16_t *)PTOV(VGA_TXT_BASE); 1019 else 1020 vgatext = (uint16_t *)PTOV(VGA_MEM_BASE + VGA_MEM_SIZE); 1021 1022 /* set 16bit colors */ 1023 val = vga_get_atr(VGA_REG_BASE, VGA_AC_MODE_CONTROL); 1024 val &= ~VGA_AC_MC_BI; 1025 val &= ~VGA_AC_MC_ELG; 1026 vga_set_atr(VGA_REG_BASE, VGA_AC_MODE_CONTROL, val); 1027 1028 #if defined(FRAMEBUFFER_MODE) 1029 val = vbe_default_mode(); 1030 /* if val is not legal VBE mode, use text mode */ 1031 if (VBE_VALID_MODE(val)) { 1032 if (vbe_set_mode(val) != 0) 1033 bios_set_text_mode(VGA_TEXT_MODE); 1034 } 1035 #endif 1036 1037 gfx_framework_init(); 1038 1039 if (!cons_update_mode(VBE_VALID_MODE(vbe_get_mode()))) 1040 return (1); 1041 1042 for (int i = 0; i < 10 && vidc_ischar(); i++) 1043 (void) vidc_getchar(); 1044 1045 return (0); /* XXX reinit? */ 1046 } 1047 1048 static void 1049 vidc_biosputchar(int c) 1050 { 1051 1052 v86.ctl = 0; 1053 v86.addr = 0x10; 1054 v86.eax = 0xe00 | (c & 0xff); 1055 v86.ebx = 0x7; 1056 v86int(); 1057 } 1058 1059 static void 1060 vidc_putchar(int c) 1061 { 1062 unsigned char ch = c; 1063 1064 if (screen_buffer != NULL) 1065 teken_input(&gfx_state.tg_teken, &ch, sizeof (ch)); 1066 else 1067 vidc_biosputchar(c); 1068 } 1069 1070 static int 1071 vidc_getchar(void) 1072 { 1073 int i, c; 1074 1075 for (i = 0; i < KEYBUFSZ; i++) { 1076 if (keybuf[i] != 0) { 1077 c = keybuf[i]; 1078 keybuf[i] = 0; 1079 return (c); 1080 } 1081 } 1082 1083 if (vidc_ischar()) { 1084 v86.ctl = 0; 1085 v86.addr = 0x16; 1086 v86.eax = 0x0; 1087 v86int(); 1088 if ((v86.eax & 0xff) != 0) { 1089 return (v86.eax & 0xff); 1090 } 1091 1092 /* extended keys */ 1093 switch (v86.eax & 0xff00) { 1094 case 0x4800: /* up */ 1095 keybuf[0] = '['; 1096 keybuf[1] = 'A'; 1097 return (0x1b); /* esc */ 1098 case 0x4b00: /* left */ 1099 keybuf[0] = '['; 1100 keybuf[1] = 'D'; 1101 return (0x1b); /* esc */ 1102 case 0x4d00: /* right */ 1103 keybuf[0] = '['; 1104 keybuf[1] = 'C'; 1105 return (0x1b); /* esc */ 1106 case 0x5000: /* down */ 1107 keybuf[0] = '['; 1108 keybuf[1] = 'B'; 1109 return (0x1b); /* esc */ 1110 default: 1111 return (-1); 1112 } 1113 } else { 1114 return (-1); 1115 } 1116 } 1117 1118 static int 1119 vidc_ischar(void) 1120 { 1121 int i; 1122 1123 for (i = 0; i < KEYBUFSZ; i++) { 1124 if (keybuf[i] != 0) { 1125 return (1); 1126 } 1127 } 1128 1129 v86.ctl = V86_FLAGS; 1130 v86.addr = 0x16; 1131 v86.eax = 0x100; 1132 v86int(); 1133 return (!V86_ZR(v86.efl)); 1134 } 1135 1136 #if KEYBOARD_PROBE 1137 1138 #define PROBE_MAXRETRY 5 1139 #define PROBE_MAXWAIT 400 1140 #define IO_DUMMY 0x84 1141 #define IO_KBD 0x060 /* 8042 Keyboard */ 1142 1143 /* selected defines from kbdio.h */ 1144 #define KBD_STATUS_PORT 4 /* status port, read */ 1145 #define KBD_DATA_PORT 0 /* data port, read/write 1146 * also used as keyboard command 1147 * and mouse command port 1148 */ 1149 #define KBDC_ECHO 0x00ee 1150 #define KBDS_ANY_BUFFER_FULL 0x0001 1151 #define KBDS_INPUT_BUFFER_FULL 0x0002 1152 #define KBD_ECHO 0x00ee 1153 1154 /* 7 microsec delay necessary for some keyboard controllers */ 1155 static void 1156 delay7(void) 1157 { 1158 /* 1159 * I know this is broken, but no timer is available yet at this stage... 1160 * See also comments in `delay1ms()'. 1161 */ 1162 inb(IO_DUMMY); inb(IO_DUMMY); 1163 inb(IO_DUMMY); inb(IO_DUMMY); 1164 inb(IO_DUMMY); inb(IO_DUMMY); 1165 } 1166 1167 /* 1168 * This routine uses an inb to an unused port, the time to execute that 1169 * inb is approximately 1.25uS. This value is pretty constant across 1170 * all CPU's and all buses, with the exception of some PCI implentations 1171 * that do not forward this I/O address to the ISA bus as they know it 1172 * is not a valid ISA bus address, those machines execute this inb in 1173 * 60 nS :-(. 1174 * 1175 */ 1176 static void 1177 delay1ms(void) 1178 { 1179 int i = 800; 1180 while (--i >= 0) 1181 (void) inb(0x84); 1182 } 1183 1184 /* 1185 * We use the presence/absence of a keyboard to determine whether the internal 1186 * console can be used for input. 1187 * 1188 * Perform a simple test on the keyboard; issue the ECHO command and see 1189 * if the right answer is returned. We don't do anything as drastic as 1190 * full keyboard reset; it will be too troublesome and take too much time. 1191 */ 1192 static int 1193 probe_keyboard(void) 1194 { 1195 int retry = PROBE_MAXRETRY; 1196 int wait; 1197 int i; 1198 1199 while (--retry >= 0) { 1200 /* flush any noise */ 1201 while (inb(IO_KBD + KBD_STATUS_PORT) & KBDS_ANY_BUFFER_FULL) { 1202 delay7(); 1203 inb(IO_KBD + KBD_DATA_PORT); 1204 delay1ms(); 1205 } 1206 1207 /* wait until the controller can accept a command */ 1208 for (wait = PROBE_MAXWAIT; wait > 0; --wait) { 1209 if (((i = inb(IO_KBD + KBD_STATUS_PORT)) 1210 & (KBDS_INPUT_BUFFER_FULL | KBDS_ANY_BUFFER_FULL)) 1211 == 0) 1212 break; 1213 if (i & KBDS_ANY_BUFFER_FULL) { 1214 delay7(); 1215 inb(IO_KBD + KBD_DATA_PORT); 1216 } 1217 delay1ms(); 1218 } 1219 if (wait <= 0) 1220 continue; 1221 1222 /* send the ECHO command */ 1223 outb(IO_KBD + KBD_DATA_PORT, KBDC_ECHO); 1224 1225 /* wait for a response */ 1226 for (wait = PROBE_MAXWAIT; wait > 0; --wait) { 1227 if (inb(IO_KBD + KBD_STATUS_PORT) & 1228 KBDS_ANY_BUFFER_FULL) 1229 break; 1230 delay1ms(); 1231 } 1232 if (wait <= 0) 1233 continue; 1234 1235 delay7(); 1236 i = inb(IO_KBD + KBD_DATA_PORT); 1237 #ifdef PROBE_KBD_BEBUG 1238 printf("probe_keyboard: got 0x%x.\n", i); 1239 #endif 1240 if (i == KBD_ECHO) { 1241 /* got the right answer */ 1242 return (1); 1243 } 1244 } 1245 1246 return (0); 1247 } 1248 #endif /* KEYBOARD_PROBE */ 1249