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