1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2010 4 * Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc 5 */ 6 7 #include <common.h> 8 #include <i2c.h> 9 #include <malloc.h> 10 11 #include "ch7301.h" 12 #include "dp501.h" 13 #include <gdsys_fpga.h> 14 15 #define ICS8N3QV01_I2C_ADDR 0x6E 16 #define ICS8N3QV01_FREF 114285000 17 #define ICS8N3QV01_FREF_LL 114285000LL 18 #define ICS8N3QV01_F_DEFAULT_0 156250000LL 19 #define ICS8N3QV01_F_DEFAULT_1 125000000LL 20 #define ICS8N3QV01_F_DEFAULT_2 100000000LL 21 #define ICS8N3QV01_F_DEFAULT_3 25175000LL 22 23 #define SIL1178_MASTER_I2C_ADDRESS 0x38 24 #define SIL1178_SLAVE_I2C_ADDRESS 0x39 25 26 #define PIXCLK_640_480_60 25180000 27 #define MAX_X_CHARS 53 28 #define MAX_Y_CHARS 26 29 30 #ifdef CONFIG_SYS_OSD_DH 31 #define MAX_OSD_SCREEN 8 32 #define OSD_DH_BASE 4 33 #else 34 #define MAX_OSD_SCREEN 4 35 #endif 36 37 #ifdef CONFIG_SYS_OSD_DH 38 #define OSD_SET_REG(screen, fld, val) \ 39 do { \ 40 if (screen >= OSD_DH_BASE) \ 41 FPGA_SET_REG(screen - OSD_DH_BASE, osd1.fld, val); \ 42 else \ 43 FPGA_SET_REG(screen, osd0.fld, val); \ 44 } while (0) 45 #else 46 #define OSD_SET_REG(screen, fld, val) \ 47 FPGA_SET_REG(screen, osd0.fld, val) 48 #endif 49 50 #ifdef CONFIG_SYS_OSD_DH 51 #define OSD_GET_REG(screen, fld, val) \ 52 do { \ 53 if (screen >= OSD_DH_BASE) \ 54 FPGA_GET_REG(screen - OSD_DH_BASE, osd1.fld, val); \ 55 else \ 56 FPGA_GET_REG(screen, osd0.fld, val); \ 57 } while (0) 58 #else 59 #define OSD_GET_REG(screen, fld, val) \ 60 FPGA_GET_REG(screen, osd0.fld, val) 61 #endif 62 63 unsigned int base_width; 64 unsigned int base_height; 65 size_t bufsize; 66 u16 *buf; 67 68 unsigned int osd_screen_mask = 0; 69 70 #ifdef CONFIG_SYS_ICS8N3QV01_I2C 71 int ics8n3qv01_i2c[] = CONFIG_SYS_ICS8N3QV01_I2C; 72 #endif 73 74 #ifdef CONFIG_SYS_SIL1178_I2C 75 int sil1178_i2c[] = CONFIG_SYS_SIL1178_I2C; 76 #endif 77 78 #ifdef CONFIG_SYS_MPC92469AC 79 static void mpc92469ac_calc_parameters(unsigned int fout, 80 unsigned int *post_div, unsigned int *feedback_div) 81 { 82 unsigned int n = *post_div; 83 unsigned int m = *feedback_div; 84 unsigned int a; 85 unsigned int b = 14745600 / 16; 86 87 if (fout < 50169600) 88 n = 8; 89 else if (fout < 100339199) 90 n = 4; 91 else if (fout < 200678399) 92 n = 2; 93 else 94 n = 1; 95 96 a = fout * n + (b / 2); /* add b/2 for proper rounding */ 97 98 m = a / b; 99 100 *post_div = n; 101 *feedback_div = m; 102 } 103 104 static void mpc92469ac_set(unsigned screen, unsigned int fout) 105 { 106 unsigned int n; 107 unsigned int m; 108 unsigned int bitval = 0; 109 mpc92469ac_calc_parameters(fout, &n, &m); 110 111 switch (n) { 112 case 1: 113 bitval = 0x00; 114 break; 115 case 2: 116 bitval = 0x01; 117 break; 118 case 4: 119 bitval = 0x02; 120 break; 121 case 8: 122 bitval = 0x03; 123 break; 124 } 125 126 FPGA_SET_REG(screen, mpc3w_control, (bitval << 9) | m); 127 } 128 #endif 129 130 #ifdef CONFIG_SYS_ICS8N3QV01_I2C 131 132 static unsigned int ics8n3qv01_get_fout_calc(unsigned index) 133 { 134 unsigned long long n; 135 unsigned long long mint; 136 unsigned long long mfrac; 137 u8 reg_a, reg_b, reg_c, reg_d, reg_f; 138 unsigned long long fout_calc; 139 140 if (index > 3) 141 return 0; 142 143 reg_a = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 0 + index); 144 reg_b = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 4 + index); 145 reg_c = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 8 + index); 146 reg_d = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 12 + index); 147 reg_f = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 20 + index); 148 149 mint = ((reg_a >> 1) & 0x1f) | (reg_f & 0x20); 150 mfrac = ((reg_a & 0x01) << 17) | (reg_b << 9) | (reg_c << 1) 151 | (reg_d >> 7); 152 n = reg_d & 0x7f; 153 154 fout_calc = (mint * ICS8N3QV01_FREF_LL 155 + mfrac * ICS8N3QV01_FREF_LL / 262144LL 156 + ICS8N3QV01_FREF_LL / 524288LL 157 + n / 2) 158 / n 159 * 1000000 160 / (1000000 - 100); 161 162 return fout_calc; 163 } 164 165 166 static void ics8n3qv01_calc_parameters(unsigned int fout, 167 unsigned int *_mint, unsigned int *_mfrac, 168 unsigned int *_n) 169 { 170 unsigned int n; 171 unsigned int foutiic; 172 unsigned int fvcoiic; 173 unsigned int mint; 174 unsigned long long mfrac; 175 176 n = (2215000000U + fout / 2) / fout; 177 if ((n & 1) && (n > 5)) 178 n -= 1; 179 180 foutiic = fout - (fout / 10000); 181 fvcoiic = foutiic * n; 182 183 mint = fvcoiic / 114285000; 184 if ((mint < 17) || (mint > 63)) 185 printf("ics8n3qv01_calc_parameters: cannot determine mint\n"); 186 187 mfrac = ((unsigned long long)fvcoiic % 114285000LL) * 262144LL 188 / 114285000LL; 189 190 *_mint = mint; 191 *_mfrac = mfrac; 192 *_n = n; 193 } 194 195 static void ics8n3qv01_set(unsigned int fout) 196 { 197 unsigned int n; 198 unsigned int mint; 199 unsigned int mfrac; 200 unsigned int fout_calc; 201 unsigned long long fout_prog; 202 long long off_ppm; 203 u8 reg0, reg4, reg8, reg12, reg18, reg20; 204 205 fout_calc = ics8n3qv01_get_fout_calc(1); 206 off_ppm = (fout_calc - ICS8N3QV01_F_DEFAULT_1) * 1000000 207 / ICS8N3QV01_F_DEFAULT_1; 208 printf(" PLL is off by %lld ppm\n", off_ppm); 209 fout_prog = (unsigned long long)fout * (unsigned long long)fout_calc 210 / ICS8N3QV01_F_DEFAULT_1; 211 ics8n3qv01_calc_parameters(fout_prog, &mint, &mfrac, &n); 212 213 reg0 = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 0) & 0xc0; 214 reg0 |= (mint & 0x1f) << 1; 215 reg0 |= (mfrac >> 17) & 0x01; 216 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 0, reg0); 217 218 reg4 = mfrac >> 9; 219 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 4, reg4); 220 221 reg8 = mfrac >> 1; 222 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 8, reg8); 223 224 reg12 = mfrac << 7; 225 reg12 |= n & 0x7f; 226 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 12, reg12); 227 228 reg18 = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 18) & 0x03; 229 reg18 |= 0x20; 230 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 18, reg18); 231 232 reg20 = i2c_reg_read(ICS8N3QV01_I2C_ADDR, 20) & 0x1f; 233 reg20 |= mint & (1 << 5); 234 i2c_reg_write(ICS8N3QV01_I2C_ADDR, 20, reg20); 235 } 236 #endif 237 238 static int osd_write_videomem(unsigned screen, unsigned offset, 239 u16 *data, size_t charcount) 240 { 241 unsigned int k; 242 243 for (k = 0; k < charcount; ++k) { 244 if (offset + k >= bufsize) 245 return -1; 246 #ifdef CONFIG_SYS_OSD_DH 247 if (screen >= OSD_DH_BASE) 248 FPGA_SET_REG(screen - OSD_DH_BASE, 249 videomem1[offset + k], data[k]); 250 else 251 FPGA_SET_REG(screen, videomem0[offset + k], data[k]); 252 #else 253 FPGA_SET_REG(screen, videomem0[offset + k], data[k]); 254 #endif 255 } 256 257 return charcount; 258 } 259 260 static int osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 261 { 262 unsigned screen; 263 264 if (argc < 5) { 265 cmd_usage(cmdtp); 266 return 1; 267 } 268 269 for (screen = 0; screen < MAX_OSD_SCREEN; ++screen) { 270 unsigned x; 271 unsigned y; 272 unsigned charcount; 273 unsigned len; 274 u8 color; 275 unsigned int k; 276 char *text; 277 int res; 278 279 if (!(osd_screen_mask & (1 << screen))) 280 continue; 281 282 x = simple_strtoul(argv[1], NULL, 16); 283 y = simple_strtoul(argv[2], NULL, 16); 284 color = simple_strtoul(argv[3], NULL, 16); 285 text = argv[4]; 286 charcount = strlen(text); 287 len = (charcount > bufsize) ? bufsize : charcount; 288 289 for (k = 0; k < len; ++k) 290 buf[k] = (text[k] << 8) | color; 291 292 res = osd_write_videomem(screen, y * base_width + x, buf, len); 293 if (res < 0) 294 return res; 295 296 OSD_SET_REG(screen, control, 0x0049); 297 } 298 299 return 0; 300 } 301 302 int osd_probe(unsigned screen) 303 { 304 u16 version; 305 u16 features; 306 int old_bus = i2c_get_bus_num(); 307 bool pixclock_present = false; 308 bool output_driver_present = false; 309 310 OSD_GET_REG(0, version, &version); 311 OSD_GET_REG(0, features, &features); 312 313 base_width = ((features & 0x3f00) >> 8) + 1; 314 base_height = (features & 0x001f) + 1; 315 bufsize = base_width * base_height; 316 buf = malloc(sizeof(u16) * bufsize); 317 if (!buf) 318 return -1; 319 320 #ifdef CONFIG_SYS_OSD_DH 321 printf("OSD%d-%d: Digital-OSD version %01d.%02d, %d" "x%d characters\n", 322 (screen >= OSD_DH_BASE) ? (screen - OSD_DH_BASE) : screen, 323 (screen > 3) ? 1 : 0, version/100, version%100, base_width, 324 base_height); 325 #else 326 printf("OSD%d: Digital-OSD version %01d.%02d, %d" "x%d characters\n", 327 screen, version/100, version%100, base_width, base_height); 328 #endif 329 /* setup pixclock */ 330 331 #ifdef CONFIG_SYS_MPC92469AC 332 pixclock_present = true; 333 mpc92469ac_set(screen, PIXCLK_640_480_60); 334 #endif 335 336 #ifdef CONFIG_SYS_ICS8N3QV01_I2C 337 i2c_set_bus_num(ics8n3qv01_i2c[screen]); 338 if (!i2c_probe(ICS8N3QV01_I2C_ADDR)) { 339 ics8n3qv01_set(PIXCLK_640_480_60); 340 pixclock_present = true; 341 } 342 #endif 343 344 if (!pixclock_present) 345 printf(" no pixelclock found\n"); 346 347 /* setup output driver */ 348 349 #ifdef CONFIG_SYS_CH7301_I2C 350 if (!ch7301_probe(screen, true)) 351 output_driver_present = true; 352 #endif 353 354 #ifdef CONFIG_SYS_SIL1178_I2C 355 i2c_set_bus_num(sil1178_i2c[screen]); 356 if (!i2c_probe(SIL1178_SLAVE_I2C_ADDRESS)) { 357 if (i2c_reg_read(SIL1178_SLAVE_I2C_ADDRESS, 0x02) == 0x06) { 358 /* 359 * magic initialization sequence, 360 * adapted from datasheet 361 */ 362 i2c_reg_write(SIL1178_SLAVE_I2C_ADDRESS, 0x08, 0x36); 363 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0f, 0x44); 364 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0f, 0x4c); 365 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0e, 0x10); 366 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0a, 0x80); 367 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x09, 0x30); 368 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0c, 0x89); 369 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x0d, 0x60); 370 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x08, 0x36); 371 i2c_reg_write(SIL1178_MASTER_I2C_ADDRESS, 0x08, 0x37); 372 output_driver_present = true; 373 } 374 } 375 #endif 376 377 #ifdef CONFIG_SYS_DP501_I2C 378 if (!dp501_probe(screen, true)) 379 output_driver_present = true; 380 #endif 381 382 if (!output_driver_present) 383 printf(" no output driver found\n"); 384 385 OSD_SET_REG(screen, xy_size, ((32 - 1) << 8) | (16 - 1)); 386 OSD_SET_REG(screen, x_pos, 0x007f); 387 OSD_SET_REG(screen, y_pos, 0x005f); 388 389 if (pixclock_present && output_driver_present) 390 osd_screen_mask |= 1 << screen; 391 392 i2c_set_bus_num(old_bus); 393 394 return 0; 395 } 396 397 int osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 398 { 399 unsigned screen; 400 401 if ((argc < 4) || (strlen(argv[3]) % 4)) { 402 cmd_usage(cmdtp); 403 return 1; 404 } 405 406 for (screen = 0; screen < MAX_OSD_SCREEN; ++screen) { 407 unsigned x; 408 unsigned y; 409 unsigned k; 410 u16 buffer[base_width]; 411 char *rp; 412 u16 *wp = buffer; 413 unsigned count = (argc > 4) ? 414 simple_strtoul(argv[4], NULL, 16) : 1; 415 416 if (!(osd_screen_mask & (1 << screen))) 417 continue; 418 419 x = simple_strtoul(argv[1], NULL, 16); 420 y = simple_strtoul(argv[2], NULL, 16); 421 rp = argv[3]; 422 423 424 while (*rp) { 425 char substr[5]; 426 427 memcpy(substr, rp, 4); 428 substr[4] = 0; 429 *wp = simple_strtoul(substr, NULL, 16); 430 431 rp += 4; 432 wp++; 433 if (wp - buffer > base_width) 434 break; 435 } 436 437 for (k = 0; k < count; ++k) { 438 unsigned offset = 439 y * base_width + x + k * (wp - buffer); 440 osd_write_videomem(screen, offset, buffer, 441 wp - buffer); 442 } 443 444 OSD_SET_REG(screen, control, 0x0049); 445 } 446 447 return 0; 448 } 449 450 int osd_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 451 { 452 unsigned screen; 453 unsigned x; 454 unsigned y; 455 456 if (argc < 3) { 457 cmd_usage(cmdtp); 458 return 1; 459 } 460 461 x = simple_strtoul(argv[1], NULL, 16); 462 y = simple_strtoul(argv[2], NULL, 16); 463 464 if (!x || (x > 64) || (x > MAX_X_CHARS) || 465 !y || (y > 32) || (y > MAX_Y_CHARS)) { 466 cmd_usage(cmdtp); 467 return 1; 468 } 469 470 for (screen = 0; screen < MAX_OSD_SCREEN; ++screen) { 471 if (!(osd_screen_mask & (1 << screen))) 472 continue; 473 474 OSD_SET_REG(screen, xy_size, ((x - 1) << 8) | (y - 1)); 475 OSD_SET_REG(screen, x_pos, 32767 * (640 - 12 * x) / 65535); 476 OSD_SET_REG(screen, y_pos, 32767 * (480 - 18 * y) / 65535); 477 } 478 479 return 0; 480 } 481 482 U_BOOT_CMD( 483 osdw, 5, 0, osd_write, 484 "write 16-bit hex encoded buffer to osd memory", 485 "pos_x pos_y buffer count\n" 486 ); 487 488 U_BOOT_CMD( 489 osdp, 5, 0, osd_print, 490 "write ASCII buffer to osd memory", 491 "pos_x pos_y color text\n" 492 ); 493 494 U_BOOT_CMD( 495 osdsize, 3, 0, osd_size, 496 "set OSD XY size in characters", 497 "size_x(max. " __stringify(MAX_X_CHARS) 498 ") size_y(max. " __stringify(MAX_Y_CHARS) ")\n" 499 ); 500