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 "vbe.h" 40 41 #include <dev/vt/hw/vga/vt_vga_reg.h> 42 43 #include "libi386.h" 44 45 #if KEYBOARD_PROBE 46 static int probe_keyboard(void); 47 #endif 48 static void vidc_probe(struct console *cp); 49 static int vidc_init(int arg); 50 static void vidc_putchar(int c); 51 static int vidc_getchar(void); 52 static int vidc_ischar(void); 53 static void cons_draw_frame(teken_attr_t *); 54 55 static bool vidc_started; 56 static uint16_t *vgatext; 57 58 static tf_bell_t vidc_cons_bell; 59 static tf_cursor_t vidc_text_cursor; 60 static tf_putchar_t vidc_text_putchar; 61 static tf_fill_t vidc_text_fill; 62 static tf_copy_t vidc_text_copy; 63 static tf_param_t vidc_text_param; 64 static tf_respond_t vidc_cons_respond; 65 66 static teken_funcs_t tf = { 67 .tf_bell = vidc_cons_bell, 68 .tf_cursor = vidc_text_cursor, 69 .tf_putchar = vidc_text_putchar, 70 .tf_fill = vidc_text_fill, 71 .tf_copy = vidc_text_copy, 72 .tf_param = vidc_text_param, 73 .tf_respond = vidc_cons_respond, 74 }; 75 76 static teken_funcs_t tfx = { 77 .tf_bell = vidc_cons_bell, 78 .tf_cursor = gfx_fb_cursor, 79 .tf_putchar = gfx_fb_putchar, 80 .tf_fill = gfx_fb_fill, 81 .tf_copy = gfx_fb_copy, 82 .tf_param = gfx_fb_param, 83 .tf_respond = vidc_cons_respond, 84 }; 85 86 #define KEYBUFSZ 10 87 88 static uint8_t keybuf[KEYBUFSZ]; /* keybuf for extended codes */ 89 90 struct console vidconsole = { 91 .c_name = "vidconsole", 92 .c_desc = "internal video/keyboard", 93 .c_flags = 0, 94 .c_probe = vidc_probe, 95 .c_init = vidc_init, 96 .c_out = vidc_putchar, 97 .c_in = vidc_getchar, 98 .c_ready = vidc_ischar 99 }; 100 101 /* 102 * This function is used to mark a rectangular image area so the scrolling 103 * will know we need to copy the data from there. 104 */ 105 void 106 term_image_display(teken_gfx_t *state, const teken_rect_t *r) 107 { 108 teken_pos_t p; 109 int idx; 110 111 if (screen_buffer == NULL) 112 return; 113 114 for (p.tp_row = r->tr_begin.tp_row; 115 p.tp_row < r->tr_end.tp_row; p.tp_row++) { 116 for (p.tp_col = r->tr_begin.tp_col; 117 p.tp_col < r->tr_end.tp_col; p.tp_col++) { 118 idx = p.tp_col + p.tp_row * state->tg_tp.tp_col; 119 if (idx >= state->tg_tp.tp_col * state->tg_tp.tp_row) 120 return; 121 screen_buffer[idx].a.ta_format |= TF_IMAGE; 122 } 123 } 124 } 125 126 static void 127 vidc_text_set_cursor(teken_unit_t row, teken_unit_t col, bool visible) 128 { 129 uint16_t addr; 130 uint8_t msl, s, e; 131 132 msl = vga_get_crtc(VGA_REG_BASE, VGA_CRTC_MAX_SCAN_LINE) & 0x1f; 133 s = vga_get_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_START) & 0xC0; 134 e = vga_get_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_END); 135 136 if (visible == true) { 137 addr = row * TEXT_COLS + col; 138 vga_set_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_LOC_HIGH, addr >> 8); 139 vga_set_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_LOC_LOW, 140 addr & 0xff); 141 e = msl; 142 } else { 143 s |= (1<<5); 144 } 145 vga_set_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_START, s); 146 vga_set_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_END, e); 147 } 148 149 static void 150 vidc_text_get_cursor(teken_unit_t *row, teken_unit_t *col) 151 { 152 uint16_t addr; 153 154 addr = (vga_get_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_LOC_HIGH) << 8) + 155 vga_get_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_LOC_LOW); 156 157 *row = addr / TEXT_COLS; 158 *col = addr % TEXT_COLS; 159 } 160 161 /* 162 * Not implemented. 163 */ 164 static void 165 vidc_cons_bell(void *s __unused) 166 { 167 } 168 169 static void 170 vidc_text_cursor(void *s __unused, const teken_pos_t *p) 171 { 172 teken_unit_t row, col; 173 174 if (p->tp_col == TEXT_COLS) 175 col = p->tp_col - 1; 176 else 177 col = p->tp_col; 178 179 if (p->tp_row == TEXT_ROWS) 180 row = p->tp_row - 1; 181 else 182 row = p->tp_row; 183 184 vidc_text_set_cursor(row, col, true); 185 } 186 187 /* 188 * Binary searchable table for Unicode to CP437 conversion. 189 */ 190 struct unicp437 { 191 uint16_t unicode_base; 192 uint8_t cp437_base; 193 uint8_t length; 194 }; 195 196 static const struct unicp437 cp437table[] = { 197 { 0x0020, 0x20, 0x5e }, { 0x00a0, 0x20, 0x00 }, 198 { 0x00a1, 0xad, 0x00 }, { 0x00a2, 0x9b, 0x00 }, 199 { 0x00a3, 0x9c, 0x00 }, { 0x00a5, 0x9d, 0x00 }, 200 { 0x00a7, 0x15, 0x00 }, { 0x00aa, 0xa6, 0x00 }, 201 { 0x00ab, 0xae, 0x00 }, { 0x00ac, 0xaa, 0x00 }, 202 { 0x00b0, 0xf8, 0x00 }, { 0x00b1, 0xf1, 0x00 }, 203 { 0x00b2, 0xfd, 0x00 }, { 0x00b5, 0xe6, 0x00 }, 204 { 0x00b6, 0x14, 0x00 }, { 0x00b7, 0xfa, 0x00 }, 205 { 0x00ba, 0xa7, 0x00 }, { 0x00bb, 0xaf, 0x00 }, 206 { 0x00bc, 0xac, 0x00 }, { 0x00bd, 0xab, 0x00 }, 207 { 0x00bf, 0xa8, 0x00 }, { 0x00c4, 0x8e, 0x01 }, 208 { 0x00c6, 0x92, 0x00 }, { 0x00c7, 0x80, 0x00 }, 209 { 0x00c9, 0x90, 0x00 }, { 0x00d1, 0xa5, 0x00 }, 210 { 0x00d6, 0x99, 0x00 }, { 0x00dc, 0x9a, 0x00 }, 211 { 0x00df, 0xe1, 0x00 }, { 0x00e0, 0x85, 0x00 }, 212 { 0x00e1, 0xa0, 0x00 }, { 0x00e2, 0x83, 0x00 }, 213 { 0x00e4, 0x84, 0x00 }, { 0x00e5, 0x86, 0x00 }, 214 { 0x00e6, 0x91, 0x00 }, { 0x00e7, 0x87, 0x00 }, 215 { 0x00e8, 0x8a, 0x00 }, { 0x00e9, 0x82, 0x00 }, 216 { 0x00ea, 0x88, 0x01 }, { 0x00ec, 0x8d, 0x00 }, 217 { 0x00ed, 0xa1, 0x00 }, { 0x00ee, 0x8c, 0x00 }, 218 { 0x00ef, 0x8b, 0x00 }, { 0x00f0, 0xeb, 0x00 }, 219 { 0x00f1, 0xa4, 0x00 }, { 0x00f2, 0x95, 0x00 }, 220 { 0x00f3, 0xa2, 0x00 }, { 0x00f4, 0x93, 0x00 }, 221 { 0x00f6, 0x94, 0x00 }, { 0x00f7, 0xf6, 0x00 }, 222 { 0x00f8, 0xed, 0x00 }, { 0x00f9, 0x97, 0x00 }, 223 { 0x00fa, 0xa3, 0x00 }, { 0x00fb, 0x96, 0x00 }, 224 { 0x00fc, 0x81, 0x00 }, { 0x00ff, 0x98, 0x00 }, 225 { 0x0192, 0x9f, 0x00 }, { 0x0393, 0xe2, 0x00 }, 226 { 0x0398, 0xe9, 0x00 }, { 0x03a3, 0xe4, 0x00 }, 227 { 0x03a6, 0xe8, 0x00 }, { 0x03a9, 0xea, 0x00 }, 228 { 0x03b1, 0xe0, 0x01 }, { 0x03b4, 0xeb, 0x00 }, 229 { 0x03b5, 0xee, 0x00 }, { 0x03bc, 0xe6, 0x00 }, 230 { 0x03c0, 0xe3, 0x00 }, { 0x03c3, 0xe5, 0x00 }, 231 { 0x03c4, 0xe7, 0x00 }, { 0x03c6, 0xed, 0x00 }, 232 { 0x03d5, 0xed, 0x00 }, { 0x2010, 0x2d, 0x00 }, 233 { 0x2014, 0x2d, 0x00 }, { 0x2018, 0x60, 0x00 }, 234 { 0x2019, 0x27, 0x00 }, { 0x201c, 0x22, 0x00 }, 235 { 0x201d, 0x22, 0x00 }, { 0x2022, 0x07, 0x00 }, 236 { 0x203c, 0x13, 0x00 }, { 0x207f, 0xfc, 0x00 }, 237 { 0x20a7, 0x9e, 0x00 }, { 0x20ac, 0xee, 0x00 }, 238 { 0x2126, 0xea, 0x00 }, { 0x2190, 0x1b, 0x00 }, 239 { 0x2191, 0x18, 0x00 }, { 0x2192, 0x1a, 0x00 }, 240 { 0x2193, 0x19, 0x00 }, { 0x2194, 0x1d, 0x00 }, 241 { 0x2195, 0x12, 0x00 }, { 0x21a8, 0x17, 0x00 }, 242 { 0x2202, 0xeb, 0x00 }, { 0x2208, 0xee, 0x00 }, 243 { 0x2211, 0xe4, 0x00 }, { 0x2212, 0x2d, 0x00 }, 244 { 0x2219, 0xf9, 0x00 }, { 0x221a, 0xfb, 0x00 }, 245 { 0x221e, 0xec, 0x00 }, { 0x221f, 0x1c, 0x00 }, 246 { 0x2229, 0xef, 0x00 }, { 0x2248, 0xf7, 0x00 }, 247 { 0x2261, 0xf0, 0x00 }, { 0x2264, 0xf3, 0x00 }, 248 { 0x2265, 0xf2, 0x00 }, { 0x2302, 0x7f, 0x00 }, 249 { 0x2310, 0xa9, 0x00 }, { 0x2320, 0xf4, 0x00 }, 250 { 0x2321, 0xf5, 0x00 }, { 0x2500, 0xc4, 0x00 }, 251 { 0x2502, 0xb3, 0x00 }, { 0x250c, 0xda, 0x00 }, 252 { 0x2510, 0xbf, 0x00 }, { 0x2514, 0xc0, 0x00 }, 253 { 0x2518, 0xd9, 0x00 }, { 0x251c, 0xc3, 0x00 }, 254 { 0x2524, 0xb4, 0x00 }, { 0x252c, 0xc2, 0x00 }, 255 { 0x2534, 0xc1, 0x00 }, { 0x253c, 0xc5, 0x00 }, 256 { 0x2550, 0xcd, 0x00 }, { 0x2551, 0xba, 0x00 }, 257 { 0x2552, 0xd5, 0x00 }, { 0x2553, 0xd6, 0x00 }, 258 { 0x2554, 0xc9, 0x00 }, { 0x2555, 0xb8, 0x00 }, 259 { 0x2556, 0xb7, 0x00 }, { 0x2557, 0xbb, 0x00 }, 260 { 0x2558, 0xd4, 0x00 }, { 0x2559, 0xd3, 0x00 }, 261 { 0x255a, 0xc8, 0x00 }, { 0x255b, 0xbe, 0x00 }, 262 { 0x255c, 0xbd, 0x00 }, { 0x255d, 0xbc, 0x00 }, 263 { 0x255e, 0xc6, 0x01 }, { 0x2560, 0xcc, 0x00 }, 264 { 0x2561, 0xb5, 0x00 }, { 0x2562, 0xb6, 0x00 }, 265 { 0x2563, 0xb9, 0x00 }, { 0x2564, 0xd1, 0x01 }, 266 { 0x2566, 0xcb, 0x00 }, { 0x2567, 0xcf, 0x00 }, 267 { 0x2568, 0xd0, 0x00 }, { 0x2569, 0xca, 0x00 }, 268 { 0x256a, 0xd8, 0x00 }, { 0x256b, 0xd7, 0x00 }, 269 { 0x256c, 0xce, 0x00 }, { 0x2580, 0xdf, 0x00 }, 270 { 0x2584, 0xdc, 0x00 }, { 0x2588, 0xdb, 0x00 }, 271 { 0x258c, 0xdd, 0x00 }, { 0x2590, 0xde, 0x00 }, 272 { 0x2591, 0xb0, 0x02 }, { 0x25a0, 0xfe, 0x00 }, 273 { 0x25ac, 0x16, 0x00 }, { 0x25b2, 0x1e, 0x00 }, 274 { 0x25ba, 0x10, 0x00 }, { 0x25bc, 0x1f, 0x00 }, 275 { 0x25c4, 0x11, 0x00 }, { 0x25cb, 0x09, 0x00 }, 276 { 0x25d8, 0x08, 0x00 }, { 0x25d9, 0x0a, 0x00 }, 277 { 0x263a, 0x01, 0x01 }, { 0x263c, 0x0f, 0x00 }, 278 { 0x2640, 0x0c, 0x00 }, { 0x2642, 0x0b, 0x00 }, 279 { 0x2660, 0x06, 0x00 }, { 0x2663, 0x05, 0x00 }, 280 { 0x2665, 0x03, 0x01 }, { 0x266a, 0x0d, 0x00 }, 281 { 0x266c, 0x0e, 0x00 } 282 }; 283 284 static uint8_t 285 vga_get_cp437(teken_char_t c) 286 { 287 int min, mid, max; 288 289 min = 0; 290 max = (sizeof(cp437table) / sizeof(struct unicp437)) - 1; 291 292 if (c < cp437table[0].unicode_base || 293 c > cp437table[max].unicode_base + cp437table[max].length) 294 return ('?'); 295 296 while (max >= min) { 297 mid = (min + max) / 2; 298 if (c < cp437table[mid].unicode_base) 299 max = mid - 1; 300 else if (c > cp437table[mid].unicode_base + 301 cp437table[mid].length) 302 min = mid + 1; 303 else 304 return (c - cp437table[mid].unicode_base + 305 cp437table[mid].cp437_base); 306 } 307 308 return ('?'); 309 } 310 311 static void 312 vidc_text_printchar(teken_gfx_t *state, const teken_pos_t *p) 313 { 314 int idx; 315 uint8_t attr; 316 struct text_pixel *px; 317 teken_color_t fg, bg, tmp; 318 struct cgatext { 319 uint8_t ch; 320 uint8_t attr; 321 } *addr; 322 323 idx = p->tp_col + p->tp_row * state->tg_tp.tp_col; 324 px = &screen_buffer[idx]; 325 fg = teken_256to16(px->a.ta_fgcolor); 326 bg = teken_256to16(px->a.ta_bgcolor); 327 if (px->a.ta_format & TF_BOLD) 328 fg |= TC_LIGHT; 329 if (px->a.ta_format & TF_BLINK) 330 bg |= TC_LIGHT; 331 332 if (px->a.ta_format & TF_REVERSE) { 333 tmp = fg; 334 fg = bg; 335 bg = tmp; 336 } 337 338 attr = (cmap[bg & 0xf] << 4) | cmap[fg & 0xf]; 339 addr = (struct cgatext *)vgatext; 340 addr[idx].ch = vga_get_cp437(px->c); 341 addr[idx].attr = attr; 342 } 343 344 static void 345 vidc_text_putchar(void *s, const teken_pos_t *p, teken_char_t c, 346 const teken_attr_t *a) 347 { 348 teken_gfx_t *state = s; 349 int attr, idx; 350 351 idx = p->tp_col + p->tp_row * state->tg_tp.tp_col; 352 if (idx >= state->tg_tp.tp_col * state->tg_tp.tp_row) 353 return; 354 355 screen_buffer[idx].c = c; 356 screen_buffer[idx].a = *a; 357 358 vidc_text_printchar(state, p); 359 } 360 361 static void 362 vidc_text_fill(void *arg, const teken_rect_t *r, teken_char_t c, 363 const teken_attr_t *a) 364 { 365 teken_gfx_t *state = arg; 366 teken_pos_t p; 367 teken_unit_t row, col; 368 369 vidc_text_get_cursor(&row, &col); 370 vidc_text_set_cursor(row, col, false); 371 for (p.tp_row = r->tr_begin.tp_row; p.tp_row < r->tr_end.tp_row; 372 p.tp_row++) 373 for (p.tp_col = r->tr_begin.tp_col; 374 p.tp_col < r->tr_end.tp_col; p.tp_col++) 375 vidc_text_putchar(state, &p, c, a); 376 vidc_text_set_cursor(row, col, true); 377 } 378 379 static void 380 vidc_text_copy(void *ptr, const teken_rect_t *r, const teken_pos_t *p) 381 { 382 teken_gfx_t *state = ptr; 383 int srow, drow; 384 int nrow, ncol, x, y; /* Has to be signed - >= 0 comparison */ 385 teken_pos_t d, s; 386 teken_unit_t row, col; 387 388 /* 389 * Copying is a little tricky. We must make sure we do it in 390 * correct order, to make sure we don't overwrite our own data. 391 */ 392 393 nrow = r->tr_end.tp_row - r->tr_begin.tp_row; 394 ncol = r->tr_end.tp_col - r->tr_begin.tp_col; 395 396 vidc_text_get_cursor(&row, &col); 397 vidc_text_set_cursor(row, col, false); 398 if (p->tp_row < r->tr_begin.tp_row) { 399 /* Copy from bottom to top. */ 400 for (y = 0; y < nrow; y++) { 401 d.tp_row = p->tp_row + y; 402 s.tp_row = r->tr_begin.tp_row + y; 403 drow = d.tp_row * state->tg_tp.tp_col; 404 srow = s.tp_row * state->tg_tp.tp_col; 405 for (x = 0; x < ncol; x++) { 406 d.tp_col = p->tp_col + x; 407 s.tp_col = r->tr_begin.tp_col + x; 408 409 if (!is_same_pixel( 410 &screen_buffer[d.tp_col + drow], 411 &screen_buffer[s.tp_col + srow])) { 412 screen_buffer[d.tp_col + drow] = 413 screen_buffer[s.tp_col + srow]; 414 vidc_text_printchar(state, &d); 415 } 416 } 417 } 418 } else { 419 /* Copy from top to bottom. */ 420 if (p->tp_col < r->tr_begin.tp_col) { 421 /* Copy from right to left. */ 422 for (y = nrow - 1; y >= 0; y--) { 423 d.tp_row = p->tp_row + y; 424 s.tp_row = r->tr_begin.tp_row + y; 425 drow = d.tp_row * state->tg_tp.tp_col; 426 srow = s.tp_row * state->tg_tp.tp_col; 427 for (x = 0; x < ncol; x++) { 428 d.tp_col = p->tp_col + x; 429 s.tp_col = r->tr_begin.tp_col + x; 430 431 if (!is_same_pixel( 432 &screen_buffer[d.tp_col + drow], 433 &screen_buffer[s.tp_col + srow])) { 434 screen_buffer[d.tp_col + drow] = 435 screen_buffer[s.tp_col + srow]; 436 vidc_text_printchar(state, &d); 437 } 438 } 439 } 440 } else { 441 /* Copy from left to right. */ 442 for (y = nrow - 1; y >= 0; y--) { 443 d.tp_row = p->tp_row + y; 444 s.tp_row = r->tr_begin.tp_row + y; 445 drow = d.tp_row * state->tg_tp.tp_col; 446 srow = s.tp_row * state->tg_tp.tp_col; 447 for (x = ncol - 1; x >= 0; x--) { 448 d.tp_col = p->tp_col + x; 449 s.tp_col = r->tr_begin.tp_col + x; 450 451 if (!is_same_pixel( 452 &screen_buffer[d.tp_col + drow], 453 &screen_buffer[s.tp_col + srow])) { 454 screen_buffer[d.tp_col + drow] = 455 screen_buffer[s.tp_col + srow]; 456 vidc_text_printchar(state, &d); 457 } 458 } 459 } 460 } 461 } 462 vidc_text_set_cursor(row, col, true); 463 } 464 465 static void 466 vidc_text_param(void *arg, int cmd, unsigned int value) 467 { 468 teken_gfx_t *state = arg; 469 teken_unit_t row, col; 470 471 switch (cmd) { 472 case TP_SETLOCALCURSOR: 473 /* 474 * 0 means normal (usually block), 1 means hidden, and 475 * 2 means blinking (always block) for compatibility with 476 * syscons. We don't support any changes except hiding, 477 * so must map 2 to 0. 478 */ 479 value = (value == 1) ? 0 : 1; 480 /* FALLTHROUGH */ 481 case TP_SHOWCURSOR: 482 vidc_text_get_cursor(&row, &col); 483 if (value != 0) { 484 vidc_text_set_cursor(row, col, true); 485 state->tg_cursor_visible = true; 486 } else { 487 vidc_text_set_cursor(row, col, false); 488 state->tg_cursor_visible = false; 489 } 490 break; 491 default: 492 /* Not yet implemented */ 493 break; 494 } 495 } 496 497 /* 498 * Not implemented. 499 */ 500 static void 501 vidc_cons_respond(void *s __unused, const void *buf __unused, 502 size_t len __unused) 503 { 504 } 505 506 static void 507 vidc_probe(struct console *cp) 508 { 509 510 /* look for a keyboard */ 511 #if KEYBOARD_PROBE 512 if (probe_keyboard()) 513 #endif 514 { 515 516 cp->c_flags |= C_PRESENTIN; 517 } 518 519 /* XXX for now, always assume we can do BIOS screen output */ 520 cp->c_flags |= C_PRESENTOUT; 521 } 522 523 static bool 524 color_name_to_teken(const char *name, int *val) 525 { 526 int light = 0; 527 if (strncasecmp(name, "light", 5) == 0) { 528 name += 5; 529 light = TC_LIGHT; 530 } else if (strncasecmp(name, "bright", 6) == 0) { 531 name += 6; 532 light = TC_LIGHT; 533 } 534 if (strcasecmp(name, "black") == 0) { 535 *val = TC_BLACK | light; 536 return (true); 537 } 538 if (strcasecmp(name, "red") == 0) { 539 *val = TC_RED | light; 540 return (true); 541 } 542 if (strcasecmp(name, "green") == 0) { 543 *val = TC_GREEN | light; 544 return (true); 545 } 546 if (strcasecmp(name, "yellow") == 0 || strcasecmp(name, "brown") == 0) { 547 *val = TC_YELLOW | light; 548 return (true); 549 } 550 if (strcasecmp(name, "blue") == 0) { 551 *val = TC_BLUE | light; 552 return (true); 553 } 554 if (strcasecmp(name, "magenta") == 0) { 555 *val = TC_MAGENTA | light; 556 return (true); 557 } 558 if (strcasecmp(name, "cyan") == 0) { 559 *val = TC_CYAN | light; 560 return (true); 561 } 562 if (strcasecmp(name, "white") == 0) { 563 *val = TC_WHITE | light; 564 return (true); 565 } 566 return (false); 567 } 568 569 static int 570 vidc_set_colors(struct env_var *ev, int flags, const void *value) 571 { 572 int val = 0; 573 char buf[3]; 574 const void *evalue; 575 const teken_attr_t *ap; 576 teken_attr_t a; 577 578 if (value == NULL) 579 return (CMD_OK); 580 581 if (color_name_to_teken(value, &val)) { 582 snprintf(buf, sizeof (buf), "%d", val); 583 evalue = buf; 584 } else { 585 char *end; 586 long lval; 587 588 errno = 0; 589 lval = strtol(value, &end, 0); 590 if (errno != 0 || *end != '\0' || lval < 0 || lval > 15) { 591 printf("Allowed values are either ansi color name or " 592 "number from range [0-15].\n"); 593 return (CMD_OK); 594 } 595 val = (int)lval; 596 evalue = value; 597 } 598 599 ap = teken_get_defattr(&gfx_state.tg_teken); 600 a = *ap; 601 if (strcmp(ev->ev_name, "teken.fg_color") == 0) { 602 /* is it already set? */ 603 if (ap->ta_fgcolor == val) 604 return (CMD_OK); 605 a.ta_fgcolor = val; 606 } 607 if (strcmp(ev->ev_name, "teken.bg_color") == 0) { 608 /* is it already set? */ 609 if (ap->ta_bgcolor == val) 610 return (CMD_OK); 611 a.ta_bgcolor = val; 612 } 613 614 /* Improve visibility */ 615 if (a.ta_bgcolor == TC_WHITE) 616 a.ta_bgcolor |= TC_LIGHT; 617 618 teken_set_defattr(&gfx_state.tg_teken, &a); 619 cons_draw_frame(&a); 620 env_setenv(ev->ev_name, flags | EV_NOHOOK, evalue, NULL, NULL); 621 teken_input(&gfx_state.tg_teken, "\e[2J", 4); 622 623 return (CMD_OK); 624 } 625 626 static int 627 env_screen_nounset(struct env_var *ev __unused) 628 { 629 if (gfx_state.tg_fb_type == FB_TEXT) 630 return (0); 631 return (EPERM); 632 } 633 634 static int 635 vidc_load_palette(void) 636 { 637 int i, roff, goff, boff, rc; 638 639 if (pe8 == NULL) 640 pe8 = calloc(sizeof(*pe8), NCMAP); 641 if (pe8 == NULL) 642 return (ENOMEM); 643 644 /* Generate VGA colors */ 645 roff = ffs(gfx_state.tg_fb.fb_mask_red) - 1; 646 goff = ffs(gfx_state.tg_fb.fb_mask_green) - 1; 647 boff = ffs(gfx_state.tg_fb.fb_mask_blue) - 1; 648 rc = generate_cons_palette((uint32_t *)pe8, COLOR_FORMAT_RGB, 649 gfx_state.tg_fb.fb_mask_red >> roff, roff, 650 gfx_state.tg_fb.fb_mask_green >> goff, goff, 651 gfx_state.tg_fb.fb_mask_blue >> boff, boff); 652 653 if (rc == 0) { 654 for (i = 0; i < NCMAP; i++) { 655 int idx; 656 657 if (i < NCOLORS) 658 idx = cons_to_vga_colors[i]; 659 else 660 idx = i; 661 662 rc = vbe_set_palette(&pe8[i], idx); 663 if (rc != 0) 664 break; 665 } 666 } 667 return (rc); 668 } 669 670 static void 671 cons_draw_frame(teken_attr_t *a) 672 { 673 teken_attr_t attr = *a; 674 teken_color_t fg = a->ta_fgcolor; 675 676 attr.ta_fgcolor = attr.ta_bgcolor; 677 teken_set_defattr(&gfx_state.tg_teken, &attr); 678 679 gfx_fb_drawrect(0, 0, gfx_state.tg_fb.fb_width, 680 gfx_state.tg_origin.tp_row, 1); 681 gfx_fb_drawrect(0, 682 gfx_state.tg_fb.fb_height - gfx_state.tg_origin.tp_row - 1, 683 gfx_state.tg_fb.fb_width, gfx_state.tg_fb.fb_height, 1); 684 gfx_fb_drawrect(0, gfx_state.tg_origin.tp_row, 685 gfx_state.tg_origin.tp_col, 686 gfx_state.tg_fb.fb_height - gfx_state.tg_origin.tp_row - 1, 1); 687 gfx_fb_drawrect( 688 gfx_state.tg_fb.fb_width - gfx_state.tg_origin.tp_col - 1, 689 gfx_state.tg_origin.tp_row, gfx_state.tg_fb.fb_width, 690 gfx_state.tg_fb.fb_height, 1); 691 692 attr.ta_fgcolor = fg; 693 teken_set_defattr(&gfx_state.tg_teken, &attr); 694 } 695 696 /* 697 * Binary searchable table for CP437 to Unicode conversion. 698 */ 699 struct cp437uni { 700 uint8_t cp437_base; 701 uint16_t unicode_base; 702 uint8_t length; 703 }; 704 705 static const struct cp437uni cp437unitable[] = { 706 { 0, 0x0000, 0 }, { 1, 0x263A, 1 }, { 3, 0x2665, 1 }, 707 { 5, 0x2663, 0 }, { 6, 0x2660, 0 }, { 7, 0x2022, 0 }, 708 { 8, 0x25D8, 0 }, { 9, 0x25CB, 0 }, { 10, 0x25D9, 0 }, 709 { 11, 0x2642, 0 }, { 12, 0x2640, 0 }, { 13, 0x266A, 1 }, 710 { 15, 0x263C, 0 }, { 16, 0x25BA, 0 }, { 17, 0x25C4, 0 }, 711 { 18, 0x2195, 0 }, { 19, 0x203C, 0 }, { 20, 0x00B6, 0 }, 712 { 21, 0x00A7, 0 }, { 22, 0x25AC, 0 }, { 23, 0x21A8, 0 }, 713 { 24, 0x2191, 0 }, { 25, 0x2193, 0 }, { 26, 0x2192, 0 }, 714 { 27, 0x2190, 0 }, { 28, 0x221F, 0 }, { 29, 0x2194, 0 }, 715 { 30, 0x25B2, 0 }, { 31, 0x25BC, 0 }, { 32, 0x0020, 0x5e }, 716 { 127, 0x2302, 0 }, { 128, 0x00C7, 0 }, { 129, 0x00FC, 0 }, 717 { 130, 0x00E9, 0 }, { 131, 0x00E2, 0 }, { 132, 0x00E4, 0 }, 718 { 133, 0x00E0, 0 }, { 134, 0x00E5, 0 }, { 135, 0x00E7, 0 }, 719 { 136, 0x00EA, 1 }, { 138, 0x00E8, 0 }, { 139, 0x00EF, 0 }, 720 { 140, 0x00EE, 0 }, { 141, 0x00EC, 0 }, { 142, 0x00C4, 1 }, 721 { 144, 0x00C9, 0 }, { 145, 0x00E6, 0 }, { 146, 0x00C6, 0 }, 722 { 147, 0x00F4, 0 }, { 148, 0x00F6, 0 }, { 149, 0x00F2, 0 }, 723 { 150, 0x00FB, 0 }, { 151, 0x00F9, 0 }, { 152, 0x00FF, 0 }, 724 { 153, 0x00D6, 0 }, { 154, 0x00DC, 0 }, { 155, 0x00A2, 1 }, 725 { 157, 0x00A5, 0 }, { 158, 0x20A7, 0 }, { 159, 0x0192, 0 }, 726 { 160, 0x00E1, 0 }, { 161, 0x00ED, 0 }, { 162, 0x00F3, 0 }, 727 { 163, 0x00FA, 0 }, { 164, 0x00F1, 0 }, { 165, 0x00D1, 0 }, 728 { 166, 0x00AA, 0 }, { 167, 0x00BA, 0 }, { 168, 0x00BF, 0 }, 729 { 169, 0x2310, 0 }, { 170, 0x00AC, 0 }, { 171, 0x00BD, 0 }, 730 { 172, 0x00BC, 0 }, { 173, 0x00A1, 0 }, { 174, 0x00AB, 0 }, 731 { 175, 0x00BB, 0 }, { 176, 0x2591, 2 }, { 179, 0x2502, 0 }, 732 { 180, 0x2524, 0 }, { 181, 0x2561, 1 }, { 183, 0x2556, 0 }, 733 { 184, 0x2555, 0 }, { 185, 0x2563, 0 }, { 186, 0x2551, 0 }, 734 { 187, 0x2557, 0 }, { 188, 0x255D, 0 }, { 189, 0x255C, 0 }, 735 { 190, 0x255B, 0 }, { 191, 0x2510, 0 }, { 192, 0x2514, 0 }, 736 { 193, 0x2534, 0 }, { 194, 0x252C, 0 }, { 195, 0x251C, 0 }, 737 { 196, 0x2500, 0 }, { 197, 0x253C, 0 }, { 198, 0x255E, 1 }, 738 { 200, 0x255A, 0 }, { 201, 0x2554, 0 }, { 202, 0x2569, 0 }, 739 { 203, 0x2566, 0 }, { 204, 0x2560, 0 }, { 205, 0x2550, 0 }, 740 { 206, 0x256C, 0 }, { 207, 0x2567, 1 }, { 209, 0x2564, 1 }, 741 { 211, 0x2559, 0 }, { 212, 0x2558, 0 }, { 213, 0x2552, 1 }, 742 { 215, 0x256B, 0 }, { 216, 0x256A, 0 }, { 217, 0x2518, 0 }, 743 { 218, 0x250C, 0 }, { 219, 0x2588, 0 }, { 220, 0x2584, 0 }, 744 { 221, 0x258C, 0 }, { 222, 0x2590, 0 }, { 223, 0x2580, 0 }, 745 { 224, 0x03B1, 0 }, { 225, 0x00DF, 0 }, { 226, 0x0393, 0 }, 746 { 227, 0x03C0, 0 }, { 228, 0x03A3, 0 }, { 229, 0x03C3, 0 }, 747 { 230, 0x00B5, 0 }, { 231, 0x03C4, 0 }, { 232, 0x03A6, 0 }, 748 { 233, 0x0398, 0 }, { 234, 0x03A9, 0 }, { 235, 0x03B4, 0 }, 749 { 236, 0x221E, 0 }, { 237, 0x03C6, 0 }, { 238, 0x03B5, 0 }, 750 { 239, 0x2229, 0 }, { 240, 0x2261, 0 }, { 241, 0x00B1, 0 }, 751 { 242, 0x2265, 0 }, { 243, 0x2264, 0 }, { 244, 0x2320, 1 }, 752 { 246, 0x00F7, 0 }, { 247, 0x2248, 0 }, { 248, 0x00B0, 0 }, 753 { 249, 0x2219, 0 }, { 250, 0x00B7, 0 }, { 251, 0x221A, 0 }, 754 { 252, 0x207F, 0 }, { 253, 0x00B2, 0 }, { 254, 0x25A0, 0 }, 755 { 255, 0x00A0, 0 } 756 }; 757 758 static uint16_t 759 vga_cp437_to_uni(uint8_t c) 760 { 761 int min, mid, max; 762 763 min = 0; 764 max = (sizeof(cp437unitable) / sizeof(struct cp437uni)) - 1; 765 766 while (max >= min) { 767 mid = (min + max) / 2; 768 if (c < cp437unitable[mid].cp437_base) 769 max = mid - 1; 770 else if (c > cp437unitable[mid].cp437_base + 771 cp437unitable[mid].length) 772 min = mid + 1; 773 else 774 return (c - cp437unitable[mid].cp437_base + 775 cp437unitable[mid].unicode_base); 776 } 777 778 return ('?'); 779 } 780 781 /* 782 * install font for text mode 783 */ 784 static void 785 vidc_install_font(void) 786 { 787 uint8_t reg[7]; 788 const uint8_t *from; 789 uint8_t volatile *to; 790 uint16_t c; 791 int i, j, s; 792 int bpc, f_offset; 793 teken_attr_t a = { 0 }; 794 795 /* We can only program VGA registers. */ 796 if (!vbe_is_vga()) 797 return; 798 799 if (gfx_state.tg_fb_type != FB_TEXT) 800 return; 801 802 /* Sync-reset the sequencer registers */ 803 vga_set_seq(VGA_REG_BASE, VGA_SEQ_RESET, VGA_SEQ_RST_NAR); 804 805 reg[0] = vga_get_seq(VGA_REG_BASE, VGA_SEQ_MAP_MASK); 806 reg[1] = vga_get_seq(VGA_REG_BASE, VGA_SEQ_CLOCKING_MODE); 807 reg[2] = vga_get_seq(VGA_REG_BASE, VGA_SEQ_MEMORY_MODE); 808 reg[3] = vga_get_grc(VGA_REG_BASE, VGA_GC_READ_MAP_SELECT); 809 reg[4] = vga_get_grc(VGA_REG_BASE, VGA_GC_MODE); 810 reg[5] = vga_get_grc(VGA_REG_BASE, VGA_GC_MISCELLANEOUS); 811 reg[6] = vga_get_atr(VGA_REG_BASE, VGA_AC_MODE_CONTROL); 812 813 /* Screen off */ 814 vga_set_seq(VGA_REG_BASE, VGA_SEQ_CLOCKING_MODE, 815 reg[1] | VGA_SEQ_CM_SO); 816 817 /* 818 * enable write to plane2, since fonts 819 * could only be loaded into plane2 820 */ 821 vga_set_seq(VGA_REG_BASE, VGA_SEQ_MAP_MASK, VGA_SEQ_MM_EM2); 822 /* 823 * sequentially access data in the bit map being 824 * selected by MapMask register (index 0x02) 825 */ 826 vga_set_seq(VGA_REG_BASE, VGA_SEQ_MEMORY_MODE, 0x07); 827 /* Sync-reset ended, and allow the sequencer to operate */ 828 vga_set_seq(VGA_REG_BASE, VGA_SEQ_RESET, 829 VGA_SEQ_RST_SR | VGA_SEQ_RST_NAR); 830 831 /* 832 * select plane 2 on Read Mode 0 833 */ 834 vga_set_grc(VGA_REG_BASE, VGA_GC_READ_MAP_SELECT, 0x02); 835 /* 836 * system addresses sequentially access data, follow 837 * Memory Mode register bit 2 in the sequencer 838 */ 839 vga_set_grc(VGA_REG_BASE, VGA_GC_MODE, 0x00); 840 /* 841 * set range of host memory addresses decoded by VGA 842 * hardware -- A0000h-BFFFFh (128K region) 843 */ 844 vga_set_grc(VGA_REG_BASE, VGA_GC_MISCELLANEOUS, 0x00); 845 846 /* 847 * This assumes 8x16 characters, which yield the traditional 80x25 848 * screen. 849 */ 850 bpc = 16; 851 s = 0; /* font slot, maybe should use tunable there. */ 852 f_offset = s * 8 * 1024; 853 for (i = 0; i < 256; i++) { 854 c = vga_cp437_to_uni(i); 855 from = font_lookup(&gfx_state.tg_font, c, &a); 856 to = (unsigned char *)ptov(VGA_MEM_BASE) + f_offset + 857 i * 0x20; 858 for (j = 0; j < bpc; j++) 859 *to++ = *from++; 860 } 861 862 vga_set_atr(VGA_REG_BASE, VGA_AC_MODE_CONTROL, reg[6]); 863 864 /* Sync-reset the sequencer registers */ 865 vga_set_seq(VGA_REG_BASE, VGA_SEQ_RESET, VGA_SEQ_RST_NAR); 866 vga_set_seq(VGA_REG_BASE, VGA_SEQ_MAP_MASK, reg[0]); 867 vga_set_seq(VGA_REG_BASE, VGA_SEQ_MEMORY_MODE, reg[2]); 868 /* Sync-reset ended, and allow the sequencer to operate */ 869 vga_set_seq(VGA_REG_BASE, VGA_SEQ_RESET, 870 VGA_SEQ_RST_SR | VGA_SEQ_RST_NAR); 871 872 /* restore graphic registers */ 873 vga_set_grc(VGA_REG_BASE, VGA_GC_READ_MAP_SELECT, reg[3]); 874 vga_set_grc(VGA_REG_BASE, VGA_GC_MODE, reg[4]); 875 vga_set_grc(VGA_REG_BASE, VGA_GC_MISCELLANEOUS, (reg[5] & 0x03) | 0x0c); 876 877 /* Screen on */ 878 vga_set_seq(VGA_REG_BASE, VGA_SEQ_CLOCKING_MODE, reg[1] & 0xdf); 879 } 880 881 bool 882 cons_update_mode(bool use_gfx_mode) 883 { 884 const teken_attr_t *a; 885 teken_attr_t attr; 886 char env[10], *ptr; 887 int format, roff, goff, boff; 888 889 /* vidc_init() is not called yet. */ 890 if (!vidc_started) 891 return (false); 892 893 gfx_state.tg_tp.tp_row = TEXT_ROWS; 894 gfx_state.tg_tp.tp_col = TEXT_COLS; 895 896 if (use_gfx_mode) { 897 setup_font(&gfx_state, gfx_state.tg_fb.fb_height, 898 gfx_state.tg_fb.fb_width); 899 /* Point of origin in pixels. */ 900 gfx_state.tg_origin.tp_row = (gfx_state.tg_fb.fb_height - 901 (gfx_state.tg_tp.tp_row * gfx_state.tg_font.vf_height)) / 2; 902 gfx_state.tg_origin.tp_col = (gfx_state.tg_fb.fb_width - 903 (gfx_state.tg_tp.tp_col * gfx_state.tg_font.vf_width)) / 2; 904 905 gfx_state.tg_glyph_size = gfx_state.tg_font.vf_height * 906 gfx_state.tg_font.vf_width * 4; 907 free(gfx_state.tg_glyph); 908 gfx_state.tg_glyph = malloc(gfx_state.tg_glyph_size); 909 if (gfx_state.tg_glyph == NULL) 910 return (false); 911 gfx_state.tg_functions = &tfx; 912 snprintf(env, sizeof (env), "%d", gfx_state.tg_fb.fb_height); 913 env_setenv("screen.height", EV_VOLATILE | EV_NOHOOK, env, 914 env_noset, env_screen_nounset); 915 snprintf(env, sizeof (env), "%d", gfx_state.tg_fb.fb_width); 916 env_setenv("screen.width", EV_VOLATILE | EV_NOHOOK, env, 917 env_noset, env_screen_nounset); 918 snprintf(env, sizeof (env), "%d", gfx_state.tg_fb.fb_bpp); 919 env_setenv("screen.depth", EV_VOLATILE | EV_NOHOOK, env, 920 env_noset, env_screen_nounset); 921 } else { 922 /* Trigger loading of 8x16 font. */ 923 setup_font(&gfx_state, 924 16 * gfx_state.tg_fb.fb_height, 925 8 * gfx_state.tg_fb.fb_width); 926 gfx_state.tg_functions = &tf; 927 /* ensure the following are not set for text mode */ 928 unsetenv("screen.height"); 929 unsetenv("screen.width"); 930 unsetenv("screen.depth"); 931 vidc_install_font(); 932 } 933 934 free(screen_buffer); 935 screen_buffer = malloc(gfx_state.tg_tp.tp_row * gfx_state.tg_tp.tp_col * 936 sizeof(*screen_buffer)); 937 if (screen_buffer == NULL) 938 return (false); 939 940 teken_init(&gfx_state.tg_teken, gfx_state.tg_functions, &gfx_state); 941 942 if (gfx_state.tg_ctype == CT_INDEXED) 943 format = COLOR_FORMAT_VGA; 944 else 945 format = COLOR_FORMAT_RGB; 946 947 roff = ffs(gfx_state.tg_fb.fb_mask_red) - 1; 948 goff = ffs(gfx_state.tg_fb.fb_mask_green) - 1; 949 boff = ffs(gfx_state.tg_fb.fb_mask_blue) - 1; 950 (void) generate_cons_palette(cmap, format, 951 gfx_state.tg_fb.fb_mask_red >> roff, roff, 952 gfx_state.tg_fb.fb_mask_green >> goff, goff, 953 gfx_state.tg_fb.fb_mask_blue >> boff, boff); 954 955 if (gfx_state.tg_ctype == CT_INDEXED && use_gfx_mode) 956 vidc_load_palette(); 957 958 teken_set_winsize(&gfx_state.tg_teken, &gfx_state.tg_tp); 959 a = teken_get_defattr(&gfx_state.tg_teken); 960 attr = *a; 961 962 /* 963 * On first run, we set up the vidc_set_colors() 964 * callback. If the env is already set, we 965 * pick up fg and bg color values from the environment. 966 */ 967 ptr = getenv("teken.fg_color"); 968 if (ptr != NULL) { 969 attr.ta_fgcolor = strtol(ptr, NULL, 10); 970 ptr = getenv("teken.bg_color"); 971 attr.ta_bgcolor = strtol(ptr, NULL, 10); 972 973 teken_set_defattr(&gfx_state.tg_teken, &attr); 974 } else { 975 snprintf(env, sizeof(env), "%d", attr.ta_fgcolor); 976 env_setenv("teken.fg_color", EV_VOLATILE, env, 977 vidc_set_colors, env_nounset); 978 snprintf(env, sizeof(env), "%d", attr.ta_bgcolor); 979 env_setenv("teken.bg_color", EV_VOLATILE, env, 980 vidc_set_colors, env_nounset); 981 } 982 983 /* Improve visibility */ 984 if (attr.ta_bgcolor == TC_WHITE) 985 attr.ta_bgcolor |= TC_LIGHT; 986 teken_set_defattr(&gfx_state.tg_teken, &attr); 987 988 snprintf(env, sizeof (env), "%u", (unsigned)gfx_state.tg_tp.tp_row); 989 setenv("LINES", env, 1); 990 snprintf(env, sizeof (env), "%u", (unsigned)gfx_state.tg_tp.tp_col); 991 setenv("COLUMNS", env, 1); 992 993 /* Draw frame around terminal area. */ 994 cons_draw_frame(&attr); 995 /* Erase display, this will also fill our screen buffer. */ 996 teken_input(&gfx_state.tg_teken, "\e[2J", 4); 997 gfx_state.tg_functions->tf_param(&gfx_state, TP_SHOWCURSOR, 1); 998 999 return (true); 1000 } 1001 1002 static int 1003 vidc_init(int arg) 1004 { 1005 const teken_attr_t *a; 1006 int val; 1007 char env[8]; 1008 1009 if (vidc_started && arg == 0) 1010 return (0); 1011 1012 vidc_started = true; 1013 vbe_init(); 1014 1015 /* 1016 * Check Miscellaneous Output Register (Read at 3CCh, Write at 3C2h) 1017 * for bit 1 (Input/Output Address Select), which means 1018 * color/graphics adapter. 1019 */ 1020 if (vga_get_reg(VGA_REG_BASE, VGA_GEN_MISC_OUTPUT_R) & VGA_GEN_MO_IOA) 1021 vgatext = (uint16_t *)PTOV(VGA_TXT_BASE); 1022 else 1023 vgatext = (uint16_t *)PTOV(VGA_MEM_BASE + VGA_MEM_SIZE); 1024 1025 /* set 16bit colors */ 1026 val = vga_get_atr(VGA_REG_BASE, VGA_AC_MODE_CONTROL); 1027 val &= ~VGA_AC_MC_BI; 1028 val &= ~VGA_AC_MC_ELG; 1029 vga_set_atr(VGA_REG_BASE, VGA_AC_MODE_CONTROL, val); 1030 1031 #if defined(FRAMEBUFFER_MODE) 1032 val = vbe_default_mode(); 1033 /* if val is not legal VBE mode, use text mode */ 1034 if (VBE_VALID_MODE(val)) { 1035 if (vbe_set_mode(val) != 0) 1036 bios_set_text_mode(VGA_TEXT_MODE); 1037 } 1038 #endif 1039 1040 gfx_framework_init(); 1041 1042 if (!cons_update_mode(VBE_VALID_MODE(vbe_get_mode()))) 1043 return (1); 1044 1045 for (int i = 0; i < 10 && vidc_ischar(); i++) 1046 (void) vidc_getchar(); 1047 1048 return (0); /* XXX reinit? */ 1049 } 1050 1051 void 1052 vidc_biosputchar(int c) 1053 { 1054 1055 v86.ctl = 0; 1056 v86.addr = 0x10; 1057 v86.eax = 0xe00 | (c & 0xff); 1058 v86.ebx = 0x7; 1059 v86int(); 1060 } 1061 1062 static void 1063 vidc_putchar(int c) 1064 { 1065 unsigned char ch = c; 1066 1067 if (screen_buffer != NULL) 1068 teken_input(&gfx_state.tg_teken, &ch, sizeof (ch)); 1069 else 1070 vidc_biosputchar(c); 1071 } 1072 1073 static int 1074 vidc_getchar(void) 1075 { 1076 int i, c; 1077 1078 for (i = 0; i < KEYBUFSZ; i++) { 1079 if (keybuf[i] != 0) { 1080 c = keybuf[i]; 1081 keybuf[i] = 0; 1082 return (c); 1083 } 1084 } 1085 1086 if (vidc_ischar()) { 1087 v86.ctl = 0; 1088 v86.addr = 0x16; 1089 v86.eax = 0x0; 1090 v86int(); 1091 if ((v86.eax & 0xff) != 0) { 1092 return (v86.eax & 0xff); 1093 } 1094 1095 /* extended keys */ 1096 switch (v86.eax & 0xff00) { 1097 case 0x4800: /* up */ 1098 keybuf[0] = '['; 1099 keybuf[1] = 'A'; 1100 return (0x1b); /* esc */ 1101 case 0x4b00: /* left */ 1102 keybuf[0] = '['; 1103 keybuf[1] = 'D'; 1104 return (0x1b); /* esc */ 1105 case 0x4d00: /* right */ 1106 keybuf[0] = '['; 1107 keybuf[1] = 'C'; 1108 return (0x1b); /* esc */ 1109 case 0x5000: /* down */ 1110 keybuf[0] = '['; 1111 keybuf[1] = 'B'; 1112 return (0x1b); /* esc */ 1113 default: 1114 return (-1); 1115 } 1116 } else { 1117 return (-1); 1118 } 1119 } 1120 1121 static int 1122 vidc_ischar(void) 1123 { 1124 int i; 1125 1126 for (i = 0; i < KEYBUFSZ; i++) { 1127 if (keybuf[i] != 0) { 1128 return (1); 1129 } 1130 } 1131 1132 v86.ctl = V86_FLAGS; 1133 v86.addr = 0x16; 1134 v86.eax = 0x100; 1135 v86int(); 1136 return (!V86_ZR(v86.efl)); 1137 } 1138 1139 #if KEYBOARD_PROBE 1140 1141 #define PROBE_MAXRETRY 5 1142 #define PROBE_MAXWAIT 400 1143 #define IO_DUMMY 0x84 1144 #define IO_KBD 0x060 /* 8042 Keyboard */ 1145 1146 /* selected defines from kbdio.h */ 1147 #define KBD_STATUS_PORT 4 /* status port, read */ 1148 #define KBD_DATA_PORT 0 /* data port, read/write 1149 * also used as keyboard command 1150 * and mouse command port 1151 */ 1152 #define KBDC_ECHO 0x00ee 1153 #define KBDS_ANY_BUFFER_FULL 0x0001 1154 #define KBDS_INPUT_BUFFER_FULL 0x0002 1155 #define KBD_ECHO 0x00ee 1156 1157 /* 7 microsec delay necessary for some keyboard controllers */ 1158 static void 1159 delay7(void) 1160 { 1161 /* 1162 * I know this is broken, but no timer is available yet at this stage... 1163 * See also comments in `delay1ms()'. 1164 */ 1165 inb(IO_DUMMY); inb(IO_DUMMY); 1166 inb(IO_DUMMY); inb(IO_DUMMY); 1167 inb(IO_DUMMY); inb(IO_DUMMY); 1168 } 1169 1170 /* 1171 * This routine uses an inb to an unused port, the time to execute that 1172 * inb is approximately 1.25uS. This value is pretty constant across 1173 * all CPU's and all buses, with the exception of some PCI implentations 1174 * that do not forward this I/O address to the ISA bus as they know it 1175 * is not a valid ISA bus address, those machines execute this inb in 1176 * 60 nS :-(. 1177 * 1178 */ 1179 static void 1180 delay1ms(void) 1181 { 1182 int i = 800; 1183 while (--i >= 0) 1184 (void) inb(0x84); 1185 } 1186 1187 /* 1188 * We use the presence/absence of a keyboard to determine whether the internal 1189 * console can be used for input. 1190 * 1191 * Perform a simple test on the keyboard; issue the ECHO command and see 1192 * if the right answer is returned. We don't do anything as drastic as 1193 * full keyboard reset; it will be too troublesome and take too much time. 1194 */ 1195 static int 1196 probe_keyboard(void) 1197 { 1198 int retry = PROBE_MAXRETRY; 1199 int wait; 1200 int i; 1201 1202 while (--retry >= 0) { 1203 /* flush any noise */ 1204 while (inb(IO_KBD + KBD_STATUS_PORT) & KBDS_ANY_BUFFER_FULL) { 1205 delay7(); 1206 inb(IO_KBD + KBD_DATA_PORT); 1207 delay1ms(); 1208 } 1209 1210 /* wait until the controller can accept a command */ 1211 for (wait = PROBE_MAXWAIT; wait > 0; --wait) { 1212 if (((i = inb(IO_KBD + KBD_STATUS_PORT)) 1213 & (KBDS_INPUT_BUFFER_FULL | KBDS_ANY_BUFFER_FULL)) 1214 == 0) 1215 break; 1216 if (i & KBDS_ANY_BUFFER_FULL) { 1217 delay7(); 1218 inb(IO_KBD + KBD_DATA_PORT); 1219 } 1220 delay1ms(); 1221 } 1222 if (wait <= 0) 1223 continue; 1224 1225 /* send the ECHO command */ 1226 outb(IO_KBD + KBD_DATA_PORT, KBDC_ECHO); 1227 1228 /* wait for a response */ 1229 for (wait = PROBE_MAXWAIT; wait > 0; --wait) { 1230 if (inb(IO_KBD + KBD_STATUS_PORT) & 1231 KBDS_ANY_BUFFER_FULL) 1232 break; 1233 delay1ms(); 1234 } 1235 if (wait <= 0) 1236 continue; 1237 1238 delay7(); 1239 i = inb(IO_KBD + KBD_DATA_PORT); 1240 #ifdef PROBE_KBD_BEBUG 1241 printf("probe_keyboard: got 0x%x.\n", i); 1242 #endif 1243 if (i == KBD_ECHO) { 1244 /* got the right answer */ 1245 return (1); 1246 } 1247 } 1248 1249 return (0); 1250 } 1251 #endif /* KEYBOARD_PROBE */ 1252