1 /* 2 * (C) Copyright 2010 3 * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <i2c.h> 10 #include <malloc.h> 11 12 #include "ch7301.h" 13 #include "dp501.h" 14 #include <gdsys_fpga.h> 15 16 #define ICS8N3QV01_I2C_ADDR 0x6E 17 #define ICS8N3QV01_FREF 114285000 18 #define ICS8N3QV01_FREF_LL 114285000LL 19 #define ICS8N3QV01_F_DEFAULT_0 156250000LL 20 #define ICS8N3QV01_F_DEFAULT_1 125000000LL 21 #define ICS8N3QV01_F_DEFAULT_2 100000000LL 22 #define ICS8N3QV01_F_DEFAULT_3 25175000LL 23 24 #define SIL1178_MASTER_I2C_ADDRESS 0x38 25 #define SIL1178_SLAVE_I2C_ADDRESS 0x39 26 27 #define PIXCLK_640_480_60 25180000 28 #define MAX_X_CHARS 53 29 #define MAX_Y_CHARS 26 30 31 #ifdef CONFIG_SYS_OSD_DH 32 #define MAX_OSD_SCREEN 8 33 #define OSD_DH_BASE 4 34 #else 35 #define MAX_OSD_SCREEN 4 36 #endif 37 38 #ifdef CONFIG_SYS_OSD_DH 39 #define OSD_SET_REG(screen, fld, val) \ 40 do { \ 41 if (screen >= OSD_DH_BASE) \ 42 FPGA_SET_REG(screen - OSD_DH_BASE, osd1.fld, val); \ 43 else \ 44 FPGA_SET_REG(screen, osd0.fld, val); \ 45 } while (0) 46 #else 47 #define OSD_SET_REG(screen, fld, val) \ 48 FPGA_SET_REG(screen, osd0.fld, val) 49 #endif 50 51 #ifdef CONFIG_SYS_OSD_DH 52 #define OSD_GET_REG(screen, fld, val) \ 53 do { \ 54 if (screen >= OSD_DH_BASE) \ 55 FPGA_GET_REG(screen - OSD_DH_BASE, osd1.fld, val); \ 56 else \ 57 FPGA_GET_REG(screen, osd0.fld, val); \ 58 } while (0) 59 #else 60 #define OSD_GET_REG(screen, fld, val) \ 61 FPGA_GET_REG(screen, osd0.fld, val) 62 #endif 63 64 unsigned int base_width; 65 unsigned int base_height; 66 size_t bufsize; 67 u16 *buf; 68 69 unsigned int osd_screen_mask = 0; 70 71 #ifdef CONFIG_SYS_ICS8N3QV01_I2C 72 int ics8n3qv01_i2c[] = CONFIG_SYS_ICS8N3QV01_I2C; 73 #endif 74 75 #ifdef CONFIG_SYS_SIL1178_I2C 76 int sil1178_i2c[] = CONFIG_SYS_SIL1178_I2C; 77 #endif 78 79 #ifdef CONFIG_SYS_MPC92469AC 80 static void mpc92469ac_calc_parameters(unsigned int fout, 81 unsigned int *post_div, unsigned int *feedback_div) 82 { 83 unsigned int n = *post_div; 84 unsigned int m = *feedback_div; 85 unsigned int a; 86 unsigned int b = 14745600 / 16; 87 88 if (fout < 50169600) 89 n = 8; 90 else if (fout < 100339199) 91 n = 4; 92 else if (fout < 200678399) 93 n = 2; 94 else 95 n = 1; 96 97 a = fout * n + (b / 2); /* add b/2 for proper rounding */ 98 99 m = a / b; 100 101 *post_div = n; 102 *feedback_div = m; 103 } 104 105 static void mpc92469ac_set(unsigned screen, unsigned int fout) 106 { 107 unsigned int n; 108 unsigned int m; 109 unsigned int bitval = 0; 110 mpc92469ac_calc_parameters(fout, &n, &m); 111 112 switch (n) { 113 case 1: 114 bitval = 0x00; 115 break; 116 case 2: 117 bitval = 0x01; 118 break; 119 case 4: 120 bitval = 0x02; 121 break; 122 case 8: 123 bitval = 0x03; 124 break; 125 } 126 127 FPGA_SET_REG(screen, mpc3w_control, (bitval << 9) | m); 128 } 129 #endif 130 131 #ifdef CONFIG_SYS_ICS8N3QV01_I2C 132 133 static unsigned int ics8n3qv01_get_fout_calc(unsigned index) 134 { 135 unsigned long long n; 136 unsigned long long mint; 137 unsigned long long mfrac; 138 u8 reg_a, reg_b, reg_c, reg_d, reg_f; 139 unsigned long long fout_calc; 140 141 if (index > 3) 142 return 0; 143 144 reg_a = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 0 + index); 145 reg_b = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 4 + index); 146 reg_c = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 8 + index); 147 reg_d = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 12 + index); 148 reg_f = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 20 + index); 149 150 mint = ((reg_a >> 1) & 0x1f) | (reg_f & 0x20); 151 mfrac = ((reg_a & 0x01) << 17) | (reg_b << 9) | (reg_c << 1) 152 | (reg_d >> 7); 153 n = reg_d & 0x7f; 154 155 fout_calc = (mint * ICS8N3QV01_FREF_LL 156 + mfrac * ICS8N3QV01_FREF_LL / 262144LL 157 + ICS8N3QV01_FREF_LL / 524288LL 158 + n / 2) 159 / n 160 * 1000000 161 / (1000000 - 100); 162 163 return fout_calc; 164 } 165 166 167 static void ics8n3qv01_calc_parameters(unsigned int fout, 168 unsigned int *_mint, unsigned int *_mfrac, 169 unsigned int *_n) 170 { 171 unsigned int n; 172 unsigned int foutiic; 173 unsigned int fvcoiic; 174 unsigned int mint; 175 unsigned long long mfrac; 176 177 n = (2215000000U + fout / 2) / fout; 178 if ((n & 1) && (n > 5)) 179 n -= 1; 180 181 foutiic = fout - (fout / 10000); 182 fvcoiic = foutiic * n; 183 184 mint = fvcoiic / 114285000; 185 if ((mint < 17) || (mint > 63)) 186 printf("ics8n3qv01_calc_parameters: cannot determine mint\n"); 187 188 mfrac = ((unsigned long long)fvcoiic % 114285000LL) * 262144LL 189 / 114285000LL; 190 191 *_mint = mint; 192 *_mfrac = mfrac; 193 *_n = n; 194 } 195 196 static void ics8n3qv01_set(unsigned int fout) 197 { 198 unsigned int n; 199 unsigned int mint; 200 unsigned int mfrac; 201 unsigned int fout_calc; 202 unsigned long long fout_prog; 203 long long off_ppm; 204 u8 reg0, reg4, reg8, reg12, reg18, reg20; 205 206 fout_calc = ics8n3qv01_get_fout_calc(1); 207 off_ppm = (fout_calc - ICS8N3QV01_F_DEFAULT_1) * 1000000 208 / ICS8N3QV01_F_DEFAULT_1; 209 printf(" PLL is off by %lld ppm\n", off_ppm); 210 fout_prog = (unsigned long long)fout * (unsigned long long)fout_calc 211 / ICS8N3QV01_F_DEFAULT_1; 212 ics8n3qv01_calc_parameters(fout_prog, &mint, &mfrac, &n); 213 214 reg0 = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 0) & 0xc0; 215 reg0 |= (mint & 0x1f) << 1; 216 reg0 |= (mfrac >> 17) & 0x01; 217 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 0, reg0); 218 219 reg4 = mfrac >> 9; 220 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 4, reg4); 221 222 reg8 = mfrac >> 1; 223 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 8, reg8); 224 225 reg12 = mfrac << 7; 226 reg12 |= n & 0x7f; 227 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 12, reg12); 228 229 reg18 = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 18) & 0x03; 230 reg18 |= 0x20; 231 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 18, reg18); 232 233 reg20 = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 20) & 0x1f; 234 reg20 |= mint & (1 << 5); 235 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 20, reg20); 236 } 237 #endif 238 239 static int osd_write_videomem(unsigned screen, unsigned offset, 240 u16 *data, size_t charcount) 241 { 242 unsigned int k; 243 244 for (k = 0; k < charcount; ++k) { 245 if (offset + k >= bufsize) 246 return -1; 247 #ifdef CONFIG_SYS_OSD_DH 248 if (screen >= OSD_DH_BASE) 249 FPGA_SET_REG(screen - OSD_DH_BASE, 250 videomem1[offset + k], data[k]); 251 else 252 FPGA_SET_REG(screen, videomem0[offset + k], data[k]); 253 #else 254 FPGA_SET_REG(screen, videomem0[offset + k], data[k]); 255 #endif 256 } 257 258 return charcount; 259 } 260 261 static int osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 262 { 263 unsigned screen; 264 265 if (argc < 5) { 266 cmd_usage(cmdtp); 267 return 1; 268 } 269 270 for (screen = 0; screen < MAX_OSD_SCREEN; ++screen) { 271 unsigned x; 272 unsigned y; 273 unsigned charcount; 274 unsigned len; 275 u8 color; 276 unsigned int k; 277 char *text; 278 int res; 279 280 if (!(osd_screen_mask & (1 << screen))) 281 continue; 282 283 x = simple_strtoul(argv[1], NULL, 16); 284 y = simple_strtoul(argv[2], NULL, 16); 285 color = simple_strtoul(argv[3], NULL, 16); 286 text = argv[4]; 287 charcount = strlen(text); 288 len = (charcount > bufsize) ? bufsize : charcount; 289 290 for (k = 0; k < len; ++k) 291 buf[k] = (text[k] << 8) | color; 292 293 res = osd_write_videomem(screen, y * base_width + x, buf, len); 294 if (res < 0) 295 return res; 296 297 OSD_SET_REG(screen, control, 0x0049); 298 } 299 300 return 0; 301 } 302 303 int osd_probe(unsigned screen) 304 { 305 u16 version; 306 u16 features; 307 int old_bus = i2c_get_bus_num(); 308 bool pixclock_present = false; 309 bool output_driver_present = false; 310 311 OSD_GET_REG(0, version, &version); 312 OSD_GET_REG(0, features, &features); 313 314 base_width = ((features & 0x3f00) >> 8) + 1; 315 base_height = (features & 0x001f) + 1; 316 bufsize = base_width * base_height; 317 buf = malloc(sizeof(u16) * bufsize); 318 if (!buf) 319 return -1; 320 321 #ifdef CONFIG_SYS_OSD_DH 322 printf("OSD%d-%d: Digital-OSD version %01d.%02d, %d" "x%d characters\n", 323 (screen >= OSD_DH_BASE) ? (screen - OSD_DH_BASE) : screen, 324 (screen > 3) ? 1 : 0, version/100, version%100, base_width, 325 base_height); 326 #else 327 printf("OSD%d: Digital-OSD version %01d.%02d, %d" "x%d characters\n", 328 screen, version/100, version%100, base_width, base_height); 329 #endif 330 /* setup pixclock */ 331 332 #ifdef CONFIG_SYS_MPC92469AC 333 pixclock_present = true; 334 mpc92469ac_set(screen, PIXCLK_640_480_60); 335 #endif 336 337 #ifdef CONFIG_SYS_ICS8N3QV01_I2C 338 i2c_set_bus_num(ics8n3qv01_i2c[screen]); 339 if (!i2c_probe(ICS8N3QV01_I2C_ADDR)) { 340 ics8n3qv01_set(PIXCLK_640_480_60); 341 pixclock_present = true; 342 } 343 #endif 344 345 if (!pixclock_present) 346 printf(" no pixelclock found\n"); 347 348 /* setup output driver */ 349 350 #ifdef CONFIG_SYS_CH7301_I2C 351 if (!ch7301_probe(screen, true)) 352 output_driver_present = true; 353 #endif 354 355 #ifdef CONFIG_SYS_SIL1178_I2C 356 i2c_set_bus_num(sil1178_i2c[screen]); 357 if (!i2c_probe(SIL1178_SLAVE_I2C_ADDRESS)) { 358 if (i2c_reg_read(SIL1178_SLAVE_I2C_ADDRESS, 0x02) == 0x06) { 359 /* 360 * magic initialization sequence, 361 * adapted from datasheet 362 */ 363 i2c_reg_write(SIL1178_SLAVE_I2C_ADDRESS, 0x08, 0x36); 364 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0f, 0x44); 365 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0f, 0x4c); 366 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0e, 0x10); 367 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0a, 0x80); 368 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x09, 0x30); 369 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0c, 0x89); 370 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0d, 0x60); 371 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x08, 0x36); 372 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x08, 0x37); 373 output_driver_present = true; 374 } 375 } 376 #endif 377 378 #ifdef CONFIG_SYS_DP501_I2C 379 if (!dp501_probe(screen, true)) 380 output_driver_present = true; 381 #endif 382 383 if (!output_driver_present) 384 printf(" no output driver found\n"); 385 386 OSD_SET_REG(screen, xy_size, ((32 - 1) << 8) | (16 - 1)); 387 OSD_SET_REG(screen, x_pos, 0x007f); 388 OSD_SET_REG(screen, y_pos, 0x005f); 389 390 if (pixclock_present && output_driver_present) 391 osd_screen_mask |= 1 << screen; 392 393 i2c_set_bus_num(old_bus); 394 395 return 0; 396 } 397 398 int osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 399 { 400 unsigned screen; 401 402 if ((argc < 4) || (strlen(argv[3]) % 4)) { 403 cmd_usage(cmdtp); 404 return 1; 405 } 406 407 for (screen = 0; screen < MAX_OSD_SCREEN; ++screen) { 408 unsigned x; 409 unsigned y; 410 unsigned k; 411 u16 buffer[base_width]; 412 char *rp; 413 u16 *wp = buffer; 414 unsigned count = (argc > 4) ? 415 simple_strtoul(argv[4], NULL, 16) : 1; 416 417 if (!(osd_screen_mask & (1 << screen))) 418 continue; 419 420 x = simple_strtoul(argv[1], NULL, 16); 421 y = simple_strtoul(argv[2], NULL, 16); 422 rp = argv[3]; 423 424 425 while (*rp) { 426 char substr[5]; 427 428 memcpy(substr, rp, 4); 429 substr[4] = 0; 430 *wp = simple_strtoul(substr, NULL, 16); 431 432 rp += 4; 433 wp++; 434 if (wp - buffer > base_width) 435 break; 436 } 437 438 for (k = 0; k < count; ++k) { 439 unsigned offset = 440 y * base_width + x + k * (wp - buffer); 441 osd_write_videomem(screen, offset, buffer, 442 wp - buffer); 443 } 444 445 OSD_SET_REG(screen, control, 0x0049); 446 } 447 448 return 0; 449 } 450 451 int osd_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 452 { 453 unsigned screen; 454 unsigned x; 455 unsigned y; 456 457 if (argc < 3) { 458 cmd_usage(cmdtp); 459 return 1; 460 } 461 462 x = simple_strtoul(argv[1], NULL, 16); 463 y = simple_strtoul(argv[2], NULL, 16); 464 465 if (!x || (x > 64) || (x > MAX_X_CHARS) || 466 !y || (y > 32) || (y > MAX_Y_CHARS)) { 467 cmd_usage(cmdtp); 468 return 1; 469 } 470 471 for (screen = 0; screen < MAX_OSD_SCREEN; ++screen) { 472 OSD_SET_REG(screen, xy_size, ((x - 1) << 8) | (y - 1)); 473 OSD_SET_REG(screen, x_pos, 32767 * (640 - 12 * x) / 65535); 474 OSD_SET_REG(screen, y_pos, 32767 * (480 - 18 * y) / 65535); 475 } 476 477 return 0; 478 } 479 480 U_BOOT_CMD( 481 osdw, 5, 0, osd_write, 482 "write 16-bit hex encoded buffer to osd memory", 483 "pos_x pos_y buffer count\n" 484 ); 485 486 U_BOOT_CMD( 487 osdp, 5, 0, osd_print, 488 "write ASCII buffer to osd memory", 489 "pos_x pos_y color text\n" 490 ); 491 492 U_BOOT_CMD( 493 osdsize, 3, 0, osd_size, 494 "set OSD XY size in characters", 495 "size_x(max. " __stringify(MAX_X_CHARS) 496 ") size_y(max. " __stringify(MAX_Y_CHARS) ")\n" 497 ); 498