1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Montage Technology M88DS3103/M88RS6000 demodulator driver 4 * 5 * Copyright (C) 2013 Antti Palosaari <crope@iki.fi> 6 */ 7 8 #include "m88ds3103_priv.h" 9 10 static const struct dvb_frontend_ops m88ds3103_ops; 11 12 /* write single register with mask */ 13 static int m88ds3103_update_bits(struct m88ds3103_dev *dev, 14 u8 reg, u8 mask, u8 val) 15 { 16 int ret; 17 u8 tmp; 18 19 /* no need for read if whole reg is written */ 20 if (mask != 0xff) { 21 ret = regmap_bulk_read(dev->regmap, reg, &tmp, 1); 22 if (ret) 23 return ret; 24 25 val &= mask; 26 tmp &= ~mask; 27 val |= tmp; 28 } 29 30 return regmap_bulk_write(dev->regmap, reg, &val, 1); 31 } 32 33 /* write reg val table using reg addr auto increment */ 34 static int m88ds3103_wr_reg_val_tab(struct m88ds3103_dev *dev, 35 const struct m88ds3103_reg_val *tab, int tab_len) 36 { 37 struct i2c_client *client = dev->client; 38 int ret, i, j; 39 u8 buf[83]; 40 41 dev_dbg(&client->dev, "tab_len=%d\n", tab_len); 42 43 if (tab_len > 86) { 44 ret = -EINVAL; 45 goto err; 46 } 47 48 for (i = 0, j = 0; i < tab_len; i++, j++) { 49 buf[j] = tab[i].val; 50 51 if (i == tab_len - 1 || tab[i].reg != tab[i + 1].reg - 1 || 52 !((j + 1) % (dev->cfg->i2c_wr_max - 1))) { 53 ret = regmap_bulk_write(dev->regmap, tab[i].reg - j, buf, j + 1); 54 if (ret) 55 goto err; 56 57 j = -1; 58 } 59 } 60 61 return 0; 62 err: 63 dev_dbg(&client->dev, "failed=%d\n", ret); 64 return ret; 65 } 66 67 /* 68 * m88ds3103b demod has an internal device related to clocking. First the i2c 69 * gate must be opened, for one transaction, then writes will be allowed. 70 */ 71 static int m88ds3103b_dt_write(struct m88ds3103_dev *dev, int reg, int data) 72 { 73 struct i2c_client *client = dev->client; 74 u8 buf[] = {reg, data}; 75 u8 val; 76 int ret; 77 struct i2c_msg msg = { 78 .addr = dev->dt_addr, .flags = 0, .buf = buf, .len = 2 79 }; 80 81 m88ds3103_update_bits(dev, 0x11, 0x01, 0x00); 82 83 val = 0x11; 84 ret = regmap_write(dev->regmap, 0x03, val); 85 if (ret) 86 dev_dbg(&client->dev, "fail=%d\n", ret); 87 88 ret = i2c_transfer(dev->dt_client->adapter, &msg, 1); 89 if (ret != 1) { 90 dev_err(&client->dev, "0x%02x (ret=%i, reg=0x%02x, value=0x%02x)\n", 91 dev->dt_addr, ret, reg, data); 92 93 m88ds3103_update_bits(dev, 0x11, 0x01, 0x01); 94 return -EREMOTEIO; 95 } 96 m88ds3103_update_bits(dev, 0x11, 0x01, 0x01); 97 98 dev_dbg(&client->dev, "0x%02x reg 0x%02x, value 0x%02x\n", 99 dev->dt_addr, reg, data); 100 101 return 0; 102 } 103 104 /* 105 * m88ds3103b demod has an internal device related to clocking. First the i2c 106 * gate must be opened, for two transactions, then reads will be allowed. 107 */ 108 static int m88ds3103b_dt_read(struct m88ds3103_dev *dev, u8 reg) 109 { 110 struct i2c_client *client = dev->client; 111 int ret; 112 u8 val; 113 u8 b0[] = { reg }; 114 u8 b1[] = { 0 }; 115 struct i2c_msg msg[] = { 116 { 117 .addr = dev->dt_addr, 118 .flags = 0, 119 .buf = b0, 120 .len = 1 121 }, 122 { 123 .addr = dev->dt_addr, 124 .flags = I2C_M_RD, 125 .buf = b1, 126 .len = 1 127 } 128 }; 129 130 m88ds3103_update_bits(dev, 0x11, 0x01, 0x00); 131 132 val = 0x12; 133 ret = regmap_write(dev->regmap, 0x03, val); 134 if (ret) 135 dev_dbg(&client->dev, "fail=%d\n", ret); 136 137 ret = i2c_transfer(dev->dt_client->adapter, msg, 2); 138 if (ret != 2) { 139 dev_err(&client->dev, "0x%02x (ret=%d, reg=0x%02x)\n", 140 dev->dt_addr, ret, reg); 141 142 m88ds3103_update_bits(dev, 0x11, 0x01, 0x01); 143 return -EREMOTEIO; 144 } 145 m88ds3103_update_bits(dev, 0x11, 0x01, 0x01); 146 147 dev_dbg(&client->dev, "0x%02x reg 0x%02x, value 0x%02x\n", 148 dev->dt_addr, reg, b1[0]); 149 150 return b1[0]; 151 } 152 153 /* 154 * Get the demodulator AGC PWM voltage setting supplied to the tuner. 155 */ 156 int m88ds3103_get_agc_pwm(struct dvb_frontend *fe, u8 *_agc_pwm) 157 { 158 struct m88ds3103_dev *dev = fe->demodulator_priv; 159 unsigned tmp; 160 int ret; 161 162 ret = regmap_read(dev->regmap, 0x3f, &tmp); 163 if (ret == 0) 164 *_agc_pwm = tmp; 165 return ret; 166 } 167 EXPORT_SYMBOL(m88ds3103_get_agc_pwm); 168 169 static int m88ds3103_read_status(struct dvb_frontend *fe, 170 enum fe_status *status) 171 { 172 struct m88ds3103_dev *dev = fe->demodulator_priv; 173 struct i2c_client *client = dev->client; 174 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 175 int ret, i, itmp; 176 unsigned int utmp; 177 u8 buf[3]; 178 179 *status = 0; 180 181 if (!dev->warm) { 182 ret = -EAGAIN; 183 goto err; 184 } 185 186 switch (c->delivery_system) { 187 case SYS_DVBS: 188 ret = regmap_read(dev->regmap, 0xd1, &utmp); 189 if (ret) 190 goto err; 191 192 if ((utmp & 0x07) == 0x07) 193 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | 194 FE_HAS_VITERBI | FE_HAS_SYNC | 195 FE_HAS_LOCK; 196 break; 197 case SYS_DVBS2: 198 ret = regmap_read(dev->regmap, 0x0d, &utmp); 199 if (ret) 200 goto err; 201 202 if ((utmp & 0x8f) == 0x8f) 203 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | 204 FE_HAS_VITERBI | FE_HAS_SYNC | 205 FE_HAS_LOCK; 206 break; 207 default: 208 dev_dbg(&client->dev, "invalid delivery_system\n"); 209 ret = -EINVAL; 210 goto err; 211 } 212 213 dev->fe_status = *status; 214 dev_dbg(&client->dev, "lock=%02x status=%02x\n", utmp, *status); 215 216 /* CNR */ 217 if (dev->fe_status & FE_HAS_VITERBI) { 218 unsigned int cnr, noise, signal, noise_tot, signal_tot; 219 220 cnr = 0; 221 /* more iterations for more accurate estimation */ 222 #define M88DS3103_SNR_ITERATIONS 3 223 224 switch (c->delivery_system) { 225 case SYS_DVBS: 226 itmp = 0; 227 228 for (i = 0; i < M88DS3103_SNR_ITERATIONS; i++) { 229 ret = regmap_read(dev->regmap, 0xff, &utmp); 230 if (ret) 231 goto err; 232 233 itmp += utmp; 234 } 235 236 /* use of single register limits max value to 15 dB */ 237 /* SNR(X) dB = 10 * ln(X) / ln(10) dB */ 238 itmp = DIV_ROUND_CLOSEST(itmp, 8 * M88DS3103_SNR_ITERATIONS); 239 if (itmp) 240 cnr = div_u64((u64) 10000 * intlog2(itmp), intlog2(10)); 241 break; 242 case SYS_DVBS2: 243 noise_tot = 0; 244 signal_tot = 0; 245 246 for (i = 0; i < M88DS3103_SNR_ITERATIONS; i++) { 247 ret = regmap_bulk_read(dev->regmap, 0x8c, buf, 3); 248 if (ret) 249 goto err; 250 251 noise = buf[1] << 6; /* [13:6] */ 252 noise |= buf[0] & 0x3f; /* [5:0] */ 253 noise >>= 2; 254 signal = buf[2] * buf[2]; 255 signal >>= 1; 256 257 noise_tot += noise; 258 signal_tot += signal; 259 } 260 261 noise = noise_tot / M88DS3103_SNR_ITERATIONS; 262 signal = signal_tot / M88DS3103_SNR_ITERATIONS; 263 264 /* SNR(X) dB = 10 * log10(X) dB */ 265 if (signal > noise) { 266 itmp = signal / noise; 267 cnr = div_u64((u64) 10000 * intlog10(itmp), (1 << 24)); 268 } 269 break; 270 default: 271 dev_dbg(&client->dev, "invalid delivery_system\n"); 272 ret = -EINVAL; 273 goto err; 274 } 275 276 if (cnr) { 277 c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 278 c->cnr.stat[0].svalue = cnr; 279 } else { 280 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 281 } 282 } else { 283 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 284 } 285 286 /* BER */ 287 if (dev->fe_status & FE_HAS_LOCK) { 288 unsigned int utmp, post_bit_error, post_bit_count; 289 290 switch (c->delivery_system) { 291 case SYS_DVBS: 292 ret = regmap_write(dev->regmap, 0xf9, 0x04); 293 if (ret) 294 goto err; 295 296 ret = regmap_read(dev->regmap, 0xf8, &utmp); 297 if (ret) 298 goto err; 299 300 /* measurement ready? */ 301 if (!(utmp & 0x10)) { 302 ret = regmap_bulk_read(dev->regmap, 0xf6, buf, 2); 303 if (ret) 304 goto err; 305 306 post_bit_error = buf[1] << 8 | buf[0] << 0; 307 post_bit_count = 0x800000; 308 dev->post_bit_error += post_bit_error; 309 dev->post_bit_count += post_bit_count; 310 dev->dvbv3_ber = post_bit_error; 311 312 /* restart measurement */ 313 utmp |= 0x10; 314 ret = regmap_write(dev->regmap, 0xf8, utmp); 315 if (ret) 316 goto err; 317 } 318 break; 319 case SYS_DVBS2: 320 ret = regmap_bulk_read(dev->regmap, 0xd5, buf, 3); 321 if (ret) 322 goto err; 323 324 utmp = buf[2] << 16 | buf[1] << 8 | buf[0] << 0; 325 326 /* enough data? */ 327 if (utmp > 4000) { 328 ret = regmap_bulk_read(dev->regmap, 0xf7, buf, 2); 329 if (ret) 330 goto err; 331 332 post_bit_error = buf[1] << 8 | buf[0] << 0; 333 post_bit_count = 32 * utmp; /* TODO: FEC */ 334 dev->post_bit_error += post_bit_error; 335 dev->post_bit_count += post_bit_count; 336 dev->dvbv3_ber = post_bit_error; 337 338 /* restart measurement */ 339 ret = regmap_write(dev->regmap, 0xd1, 0x01); 340 if (ret) 341 goto err; 342 343 ret = regmap_write(dev->regmap, 0xf9, 0x01); 344 if (ret) 345 goto err; 346 347 ret = regmap_write(dev->regmap, 0xf9, 0x00); 348 if (ret) 349 goto err; 350 351 ret = regmap_write(dev->regmap, 0xd1, 0x00); 352 if (ret) 353 goto err; 354 } 355 break; 356 default: 357 dev_dbg(&client->dev, "invalid delivery_system\n"); 358 ret = -EINVAL; 359 goto err; 360 } 361 362 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; 363 c->post_bit_error.stat[0].uvalue = dev->post_bit_error; 364 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; 365 c->post_bit_count.stat[0].uvalue = dev->post_bit_count; 366 } else { 367 c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 368 c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 369 } 370 371 return 0; 372 err: 373 dev_dbg(&client->dev, "failed=%d\n", ret); 374 return ret; 375 } 376 377 static int m88ds3103b_select_mclk(struct m88ds3103_dev *dev) 378 { 379 struct i2c_client *client = dev->client; 380 struct dtv_frontend_properties *c = &dev->fe.dtv_property_cache; 381 u32 adc_Freq_MHz[3] = {96, 93, 99}; 382 u8 reg16_list[3] = {96, 92, 100}, reg16, reg15; 383 u32 offset_MHz[3]; 384 u32 max_offset = 0; 385 u32 old_setting = dev->mclk; 386 u32 tuner_freq_MHz = c->frequency / 1000; 387 u8 i; 388 char big_symbol = 0; 389 390 big_symbol = (c->symbol_rate > 45010000) ? 1 : 0; 391 392 if (big_symbol) { 393 reg16 = 115; 394 } else { 395 reg16 = 96; 396 397 /* TODO: IS THIS NECESSARY ? */ 398 for (i = 0; i < 3; i++) { 399 offset_MHz[i] = tuner_freq_MHz % adc_Freq_MHz[i]; 400 401 if (offset_MHz[i] > (adc_Freq_MHz[i] / 2)) 402 offset_MHz[i] = adc_Freq_MHz[i] - offset_MHz[i]; 403 404 if (offset_MHz[i] > max_offset) { 405 max_offset = offset_MHz[i]; 406 reg16 = reg16_list[i]; 407 dev->mclk = adc_Freq_MHz[i] * 1000 * 1000; 408 409 if (big_symbol) 410 dev->mclk /= 2; 411 412 dev_dbg(&client->dev, "modifying mclk %u -> %u\n", 413 old_setting, dev->mclk); 414 } 415 } 416 } 417 418 if (dev->mclk == 93000000) 419 regmap_write(dev->regmap, 0xA0, 0x42); 420 else if (dev->mclk == 96000000) 421 regmap_write(dev->regmap, 0xA0, 0x44); 422 else if (dev->mclk == 99000000) 423 regmap_write(dev->regmap, 0xA0, 0x46); 424 else if (dev->mclk == 110250000) 425 regmap_write(dev->regmap, 0xA0, 0x4E); 426 else 427 regmap_write(dev->regmap, 0xA0, 0x44); 428 429 reg15 = m88ds3103b_dt_read(dev, 0x15); 430 431 m88ds3103b_dt_write(dev, 0x05, 0x40); 432 m88ds3103b_dt_write(dev, 0x11, 0x08); 433 434 if (big_symbol) 435 reg15 |= 0x02; 436 else 437 reg15 &= ~0x02; 438 439 m88ds3103b_dt_write(dev, 0x15, reg15); 440 m88ds3103b_dt_write(dev, 0x16, reg16); 441 442 usleep_range(5000, 5500); 443 444 m88ds3103b_dt_write(dev, 0x05, 0x00); 445 m88ds3103b_dt_write(dev, 0x11, (u8)(big_symbol ? 0x0E : 0x0A)); 446 447 usleep_range(5000, 5500); 448 449 return 0; 450 } 451 452 static int m88ds3103b_set_mclk(struct m88ds3103_dev *dev, u32 mclk_khz) 453 { 454 u8 reg11 = 0x0A, reg15, reg16, reg1D, reg1E, reg1F, tmp; 455 u8 sm, f0 = 0, f1 = 0, f2 = 0, f3 = 0; 456 u16 pll_div_fb, N; 457 u32 div; 458 459 reg15 = m88ds3103b_dt_read(dev, 0x15); 460 reg16 = m88ds3103b_dt_read(dev, 0x16); 461 reg1D = m88ds3103b_dt_read(dev, 0x1D); 462 463 if (dev->cfg->ts_mode != M88DS3103_TS_SERIAL) { 464 if (reg16 == 92) 465 tmp = 93; 466 else if (reg16 == 100) 467 tmp = 99; 468 else 469 tmp = 96; 470 471 mclk_khz *= tmp; 472 mclk_khz /= 96; 473 } 474 475 pll_div_fb = (reg15 & 0x01) << 8; 476 pll_div_fb += reg16; 477 pll_div_fb += 32; 478 479 div = 9000 * pll_div_fb * 4; 480 div /= mclk_khz; 481 482 if (dev->cfg->ts_mode == M88DS3103_TS_SERIAL) { 483 reg11 |= 0x02; 484 485 if (div <= 32) { 486 N = 2; 487 488 f0 = 0; 489 f1 = div / N; 490 f2 = div - f1; 491 f3 = 0; 492 } else if (div <= 34) { 493 N = 3; 494 495 f0 = div / N; 496 f1 = (div - f0) / (N - 1); 497 f2 = div - f0 - f1; 498 f3 = 0; 499 } else if (div <= 64) { 500 N = 4; 501 502 f0 = div / N; 503 f1 = (div - f0) / (N - 1); 504 f2 = (div - f0 - f1) / (N - 2); 505 f3 = div - f0 - f1 - f2; 506 } else { 507 N = 4; 508 509 f0 = 16; 510 f1 = 16; 511 f2 = 16; 512 f3 = 16; 513 } 514 515 if (f0 == 16) 516 f0 = 0; 517 else if ((f0 < 8) && (f0 != 0)) 518 f0 = 8; 519 520 if (f1 == 16) 521 f1 = 0; 522 else if ((f1 < 8) && (f1 != 0)) 523 f1 = 8; 524 525 if (f2 == 16) 526 f2 = 0; 527 else if ((f2 < 8) && (f2 != 0)) 528 f2 = 8; 529 530 if (f3 == 16) 531 f3 = 0; 532 else if ((f3 < 8) && (f3 != 0)) 533 f3 = 8; 534 } else { 535 reg11 &= ~0x02; 536 537 if (div <= 32) { 538 N = 2; 539 540 f0 = 0; 541 f1 = div / N; 542 f2 = div - f1; 543 f3 = 0; 544 } else if (div <= 48) { 545 N = 3; 546 547 f0 = div / N; 548 f1 = (div - f0) / (N - 1); 549 f2 = div - f0 - f1; 550 f3 = 0; 551 } else if (div <= 64) { 552 N = 4; 553 554 f0 = div / N; 555 f1 = (div - f0) / (N - 1); 556 f2 = (div - f0 - f1) / (N - 2); 557 f3 = div - f0 - f1 - f2; 558 } else { 559 N = 4; 560 561 f0 = 16; 562 f1 = 16; 563 f2 = 16; 564 f3 = 16; 565 } 566 567 if (f0 == 16) 568 f0 = 0; 569 else if ((f0 < 9) && (f0 != 0)) 570 f0 = 9; 571 572 if (f1 == 16) 573 f1 = 0; 574 else if ((f1 < 9) && (f1 != 0)) 575 f1 = 9; 576 577 if (f2 == 16) 578 f2 = 0; 579 else if ((f2 < 9) && (f2 != 0)) 580 f2 = 9; 581 582 if (f3 == 16) 583 f3 = 0; 584 else if ((f3 < 9) && (f3 != 0)) 585 f3 = 9; 586 } 587 588 sm = N - 1; 589 590 /* Write to registers */ 591 //reg15 &= 0x01; 592 //reg15 |= (pll_div_fb >> 8) & 0x01; 593 594 //reg16 = pll_div_fb & 0xFF; 595 596 reg1D &= ~0x03; 597 reg1D |= sm; 598 reg1D |= 0x80; 599 600 reg1E = ((f3 << 4) + f2) & 0xFF; 601 reg1F = ((f1 << 4) + f0) & 0xFF; 602 603 m88ds3103b_dt_write(dev, 0x05, 0x40); 604 m88ds3103b_dt_write(dev, 0x11, 0x08); 605 m88ds3103b_dt_write(dev, 0x1D, reg1D); 606 m88ds3103b_dt_write(dev, 0x1E, reg1E); 607 m88ds3103b_dt_write(dev, 0x1F, reg1F); 608 609 m88ds3103b_dt_write(dev, 0x17, 0xc1); 610 m88ds3103b_dt_write(dev, 0x17, 0x81); 611 612 usleep_range(5000, 5500); 613 614 m88ds3103b_dt_write(dev, 0x05, 0x00); 615 m88ds3103b_dt_write(dev, 0x11, 0x0A); 616 617 usleep_range(5000, 5500); 618 619 return 0; 620 } 621 622 static int m88ds3103_set_frontend(struct dvb_frontend *fe) 623 { 624 struct m88ds3103_dev *dev = fe->demodulator_priv; 625 struct i2c_client *client = dev->client; 626 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 627 int ret, len; 628 const struct m88ds3103_reg_val *init; 629 u8 u8tmp, u8tmp1 = 0, u8tmp2 = 0; /* silence compiler warning */ 630 u8 buf[3]; 631 u16 u16tmp; 632 u32 tuner_frequency_khz, target_mclk, u32tmp; 633 s32 s32tmp; 634 static const struct reg_sequence reset_buf[] = { 635 {0x07, 0x80}, {0x07, 0x00} 636 }; 637 638 dev_dbg(&client->dev, 639 "delivery_system=%d modulation=%d frequency=%u symbol_rate=%d inversion=%d pilot=%d rolloff=%d\n", 640 c->delivery_system, c->modulation, c->frequency, c->symbol_rate, 641 c->inversion, c->pilot, c->rolloff); 642 643 if (!dev->warm) { 644 ret = -EAGAIN; 645 goto err; 646 } 647 648 /* reset */ 649 ret = regmap_multi_reg_write(dev->regmap, reset_buf, 2); 650 if (ret) 651 goto err; 652 653 /* Disable demod clock path */ 654 if (dev->chip_id == M88RS6000_CHIP_ID) { 655 if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) { 656 ret = regmap_read(dev->regmap, 0xb2, &u32tmp); 657 if (ret) 658 goto err; 659 if (u32tmp == 0x01) { 660 ret = regmap_write(dev->regmap, 0x00, 0x00); 661 if (ret) 662 goto err; 663 ret = regmap_write(dev->regmap, 0xb2, 0x00); 664 if (ret) 665 goto err; 666 } 667 } 668 669 ret = regmap_write(dev->regmap, 0x06, 0xe0); 670 if (ret) 671 goto err; 672 } 673 674 /* program tuner */ 675 if (fe->ops.tuner_ops.set_params) { 676 ret = fe->ops.tuner_ops.set_params(fe); 677 if (ret) 678 goto err; 679 } 680 681 if (fe->ops.tuner_ops.get_frequency) { 682 ret = fe->ops.tuner_ops.get_frequency(fe, &tuner_frequency_khz); 683 if (ret) 684 goto err; 685 } else { 686 /* 687 * Use nominal target frequency as tuner driver does not provide 688 * actual frequency used. Carrier offset calculation is not 689 * valid. 690 */ 691 tuner_frequency_khz = c->frequency; 692 } 693 694 /* set M88RS6000/DS3103B demod main mclk and ts mclk from tuner die */ 695 if (dev->chip_id == M88RS6000_CHIP_ID) { 696 if (c->symbol_rate > 45010000) 697 dev->mclk = 110250000; 698 else 699 dev->mclk = 96000000; 700 701 if (c->delivery_system == SYS_DVBS) 702 target_mclk = 96000000; 703 else 704 target_mclk = 144000000; 705 706 if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) { 707 m88ds3103b_select_mclk(dev); 708 m88ds3103b_set_mclk(dev, target_mclk / 1000); 709 } 710 711 /* Enable demod clock path */ 712 ret = regmap_write(dev->regmap, 0x06, 0x00); 713 if (ret) 714 goto err; 715 usleep_range(10000, 20000); 716 } else { 717 /* set M88DS3103 mclk and ts mclk. */ 718 dev->mclk = 96000000; 719 720 switch (dev->cfg->ts_mode) { 721 case M88DS3103_TS_SERIAL: 722 case M88DS3103_TS_SERIAL_D7: 723 target_mclk = dev->cfg->ts_clk; 724 break; 725 case M88DS3103_TS_PARALLEL: 726 case M88DS3103_TS_CI: 727 if (c->delivery_system == SYS_DVBS) 728 target_mclk = 96000000; 729 else { 730 if (c->symbol_rate < 18000000) 731 target_mclk = 96000000; 732 else if (c->symbol_rate < 28000000) 733 target_mclk = 144000000; 734 else 735 target_mclk = 192000000; 736 } 737 break; 738 default: 739 dev_dbg(&client->dev, "invalid ts_mode\n"); 740 ret = -EINVAL; 741 goto err; 742 } 743 744 switch (target_mclk) { 745 case 96000000: 746 u8tmp1 = 0x02; /* 0b10 */ 747 u8tmp2 = 0x01; /* 0b01 */ 748 break; 749 case 144000000: 750 u8tmp1 = 0x00; /* 0b00 */ 751 u8tmp2 = 0x01; /* 0b01 */ 752 break; 753 case 192000000: 754 u8tmp1 = 0x03; /* 0b11 */ 755 u8tmp2 = 0x00; /* 0b00 */ 756 break; 757 } 758 ret = m88ds3103_update_bits(dev, 0x22, 0xc0, u8tmp1 << 6); 759 if (ret) 760 goto err; 761 ret = m88ds3103_update_bits(dev, 0x24, 0xc0, u8tmp2 << 6); 762 if (ret) 763 goto err; 764 } 765 766 ret = regmap_write(dev->regmap, 0xb2, 0x01); 767 if (ret) 768 goto err; 769 770 ret = regmap_write(dev->regmap, 0x00, 0x01); 771 if (ret) 772 goto err; 773 774 switch (c->delivery_system) { 775 case SYS_DVBS: 776 if (dev->chip_id == M88RS6000_CHIP_ID) { 777 len = ARRAY_SIZE(m88rs6000_dvbs_init_reg_vals); 778 init = m88rs6000_dvbs_init_reg_vals; 779 } else { 780 len = ARRAY_SIZE(m88ds3103_dvbs_init_reg_vals); 781 init = m88ds3103_dvbs_init_reg_vals; 782 } 783 break; 784 case SYS_DVBS2: 785 if (dev->chip_id == M88RS6000_CHIP_ID) { 786 len = ARRAY_SIZE(m88rs6000_dvbs2_init_reg_vals); 787 init = m88rs6000_dvbs2_init_reg_vals; 788 } else { 789 len = ARRAY_SIZE(m88ds3103_dvbs2_init_reg_vals); 790 init = m88ds3103_dvbs2_init_reg_vals; 791 } 792 break; 793 default: 794 dev_dbg(&client->dev, "invalid delivery_system\n"); 795 ret = -EINVAL; 796 goto err; 797 } 798 799 /* program init table */ 800 if (c->delivery_system != dev->delivery_system) { 801 ret = m88ds3103_wr_reg_val_tab(dev, init, len); 802 if (ret) 803 goto err; 804 } 805 806 if (dev->chip_id == M88RS6000_CHIP_ID) { 807 if (c->delivery_system == SYS_DVBS2 && 808 c->symbol_rate <= 5000000) { 809 ret = regmap_write(dev->regmap, 0xc0, 0x04); 810 if (ret) 811 goto err; 812 buf[0] = 0x09; 813 buf[1] = 0x22; 814 buf[2] = 0x88; 815 ret = regmap_bulk_write(dev->regmap, 0x8a, buf, 3); 816 if (ret) 817 goto err; 818 } 819 ret = m88ds3103_update_bits(dev, 0x9d, 0x08, 0x08); 820 if (ret) 821 goto err; 822 823 if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) { 824 buf[0] = m88ds3103b_dt_read(dev, 0x15); 825 buf[1] = m88ds3103b_dt_read(dev, 0x16); 826 827 if (c->symbol_rate > 45010000) { 828 buf[0] &= ~0x03; 829 buf[0] |= 0x02; 830 buf[0] |= ((147 - 32) >> 8) & 0x01; 831 buf[1] = (147 - 32) & 0xFF; 832 833 dev->mclk = 110250 * 1000; 834 } else { 835 buf[0] &= ~0x03; 836 buf[0] |= ((128 - 32) >> 8) & 0x01; 837 buf[1] = (128 - 32) & 0xFF; 838 839 dev->mclk = 96000 * 1000; 840 } 841 m88ds3103b_dt_write(dev, 0x15, buf[0]); 842 m88ds3103b_dt_write(dev, 0x16, buf[1]); 843 844 regmap_read(dev->regmap, 0x30, &u32tmp); 845 u32tmp &= ~0x80; 846 regmap_write(dev->regmap, 0x30, u32tmp & 0xff); 847 } 848 849 ret = regmap_write(dev->regmap, 0xf1, 0x01); 850 if (ret) 851 goto err; 852 853 if (dev->chiptype != M88DS3103_CHIPTYPE_3103B) { 854 ret = m88ds3103_update_bits(dev, 0x30, 0x80, 0x80); 855 if (ret) 856 goto err; 857 } 858 } 859 860 switch (dev->cfg->ts_mode) { 861 case M88DS3103_TS_SERIAL: 862 u8tmp1 = 0x00; 863 u8tmp = 0x06; 864 break; 865 case M88DS3103_TS_SERIAL_D7: 866 u8tmp1 = 0x20; 867 u8tmp = 0x06; 868 break; 869 case M88DS3103_TS_PARALLEL: 870 u8tmp = 0x02; 871 if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) { 872 u8tmp = 0x01; 873 u8tmp1 = 0x01; 874 } 875 break; 876 case M88DS3103_TS_CI: 877 u8tmp = 0x03; 878 break; 879 default: 880 dev_dbg(&client->dev, "invalid ts_mode\n"); 881 ret = -EINVAL; 882 goto err; 883 } 884 885 if (dev->cfg->ts_clk_pol) 886 u8tmp |= 0x40; 887 888 /* TS mode */ 889 ret = regmap_write(dev->regmap, 0xfd, u8tmp); 890 if (ret) 891 goto err; 892 893 switch (dev->cfg->ts_mode) { 894 case M88DS3103_TS_SERIAL: 895 case M88DS3103_TS_SERIAL_D7: 896 ret = m88ds3103_update_bits(dev, 0x29, 0x20, u8tmp1); 897 if (ret) 898 goto err; 899 u16tmp = 0; 900 u8tmp1 = 0x3f; 901 u8tmp2 = 0x3f; 902 break; 903 case M88DS3103_TS_PARALLEL: 904 if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) { 905 ret = m88ds3103_update_bits(dev, 0x29, 0x01, u8tmp1); 906 if (ret) 907 goto err; 908 } 909 fallthrough; 910 default: 911 u16tmp = DIV_ROUND_UP(target_mclk, dev->cfg->ts_clk); 912 u8tmp1 = u16tmp / 2 - 1; 913 u8tmp2 = DIV_ROUND_UP(u16tmp, 2) - 1; 914 } 915 916 dev_dbg(&client->dev, "target_mclk=%u ts_clk=%u ts_clk_divide_ratio=%u\n", 917 target_mclk, dev->cfg->ts_clk, u16tmp); 918 919 /* u8tmp1[5:2] => fe[3:0], u8tmp1[1:0] => ea[7:6] */ 920 /* u8tmp2[5:0] => ea[5:0] */ 921 u8tmp = (u8tmp1 >> 2) & 0x0f; 922 ret = regmap_update_bits(dev->regmap, 0xfe, 0x0f, u8tmp); 923 if (ret) 924 goto err; 925 u8tmp = ((u8tmp1 & 0x03) << 6) | u8tmp2 >> 0; 926 ret = regmap_write(dev->regmap, 0xea, u8tmp); 927 if (ret) 928 goto err; 929 930 if (c->symbol_rate <= 3000000) 931 u8tmp = 0x20; 932 else if (c->symbol_rate <= 10000000) 933 u8tmp = 0x10; 934 else 935 u8tmp = 0x06; 936 937 if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) 938 m88ds3103b_set_mclk(dev, target_mclk / 1000); 939 940 ret = regmap_write(dev->regmap, 0xc3, 0x08); 941 if (ret) 942 goto err; 943 944 ret = regmap_write(dev->regmap, 0xc8, u8tmp); 945 if (ret) 946 goto err; 947 948 ret = regmap_write(dev->regmap, 0xc4, 0x08); 949 if (ret) 950 goto err; 951 952 ret = regmap_write(dev->regmap, 0xc7, 0x00); 953 if (ret) 954 goto err; 955 956 u16tmp = DIV_ROUND_CLOSEST_ULL((u64)c->symbol_rate * 0x10000, dev->mclk); 957 buf[0] = (u16tmp >> 0) & 0xff; 958 buf[1] = (u16tmp >> 8) & 0xff; 959 ret = regmap_bulk_write(dev->regmap, 0x61, buf, 2); 960 if (ret) 961 goto err; 962 963 ret = m88ds3103_update_bits(dev, 0x4d, 0x02, dev->cfg->spec_inv << 1); 964 if (ret) 965 goto err; 966 967 ret = m88ds3103_update_bits(dev, 0x30, 0x10, dev->cfg->agc_inv << 4); 968 if (ret) 969 goto err; 970 971 ret = regmap_write(dev->regmap, 0x33, dev->cfg->agc); 972 if (ret) 973 goto err; 974 975 if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) { 976 /* enable/disable 192M LDPC clock */ 977 ret = m88ds3103_update_bits(dev, 0x29, 0x10, 978 (c->delivery_system == SYS_DVBS) ? 0x10 : 0x0); 979 if (ret) 980 goto err; 981 982 ret = m88ds3103_update_bits(dev, 0xc9, 0x08, 0x08); 983 if (ret) 984 goto err; 985 } 986 987 dev_dbg(&client->dev, "carrier offset=%d\n", 988 (tuner_frequency_khz - c->frequency)); 989 990 /* Use 32-bit calc as there is no s64 version of DIV_ROUND_CLOSEST() */ 991 s32tmp = 0x10000 * (tuner_frequency_khz - c->frequency); 992 s32tmp = DIV_ROUND_CLOSEST(s32tmp, dev->mclk / 1000); 993 buf[0] = (s32tmp >> 0) & 0xff; 994 buf[1] = (s32tmp >> 8) & 0xff; 995 ret = regmap_bulk_write(dev->regmap, 0x5e, buf, 2); 996 if (ret) 997 goto err; 998 999 ret = regmap_write(dev->regmap, 0x00, 0x00); 1000 if (ret) 1001 goto err; 1002 1003 ret = regmap_write(dev->regmap, 0xb2, 0x00); 1004 if (ret) 1005 goto err; 1006 1007 dev->delivery_system = c->delivery_system; 1008 1009 return 0; 1010 err: 1011 dev_dbg(&client->dev, "failed=%d\n", ret); 1012 return ret; 1013 } 1014 1015 static int m88ds3103_init(struct dvb_frontend *fe) 1016 { 1017 struct m88ds3103_dev *dev = fe->demodulator_priv; 1018 struct i2c_client *client = dev->client; 1019 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1020 int ret, len, rem; 1021 unsigned int utmp; 1022 const struct firmware *firmware; 1023 const char *name; 1024 1025 dev_dbg(&client->dev, "\n"); 1026 1027 /* set cold state by default */ 1028 dev->warm = false; 1029 1030 /* wake up device from sleep */ 1031 ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x01); 1032 if (ret) 1033 goto err; 1034 ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x00); 1035 if (ret) 1036 goto err; 1037 ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x00); 1038 if (ret) 1039 goto err; 1040 1041 /* firmware status */ 1042 ret = regmap_read(dev->regmap, 0xb9, &utmp); 1043 if (ret) 1044 goto err; 1045 1046 dev_dbg(&client->dev, "firmware=%02x\n", utmp); 1047 1048 if (utmp) 1049 goto warm; 1050 1051 /* global reset, global diseqc reset, global fec reset */ 1052 ret = regmap_write(dev->regmap, 0x07, 0xe0); 1053 if (ret) 1054 goto err; 1055 ret = regmap_write(dev->regmap, 0x07, 0x00); 1056 if (ret) 1057 goto err; 1058 1059 /* cold state - try to download firmware */ 1060 dev_info(&client->dev, "found a '%s' in cold state\n", 1061 dev->fe.ops.info.name); 1062 1063 if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) 1064 name = M88DS3103B_FIRMWARE; 1065 else if (dev->chip_id == M88RS6000_CHIP_ID) 1066 name = M88RS6000_FIRMWARE; 1067 else 1068 name = M88DS3103_FIRMWARE; 1069 1070 /* request the firmware, this will block and timeout */ 1071 ret = request_firmware(&firmware, name, &client->dev); 1072 if (ret) { 1073 dev_err(&client->dev, "firmware file '%s' not found\n", name); 1074 goto err; 1075 } 1076 1077 dev_info(&client->dev, "downloading firmware from file '%s'\n", name); 1078 1079 ret = regmap_write(dev->regmap, 0xb2, 0x01); 1080 if (ret) 1081 goto err_release_firmware; 1082 1083 for (rem = firmware->size; rem > 0; rem -= (dev->cfg->i2c_wr_max - 1)) { 1084 len = min(dev->cfg->i2c_wr_max - 1, rem); 1085 ret = regmap_bulk_write(dev->regmap, 0xb0, 1086 &firmware->data[firmware->size - rem], 1087 len); 1088 if (ret) { 1089 dev_err(&client->dev, "firmware download failed %d\n", 1090 ret); 1091 goto err_release_firmware; 1092 } 1093 } 1094 1095 ret = regmap_write(dev->regmap, 0xb2, 0x00); 1096 if (ret) 1097 goto err_release_firmware; 1098 1099 release_firmware(firmware); 1100 1101 ret = regmap_read(dev->regmap, 0xb9, &utmp); 1102 if (ret) 1103 goto err; 1104 1105 if (!utmp) { 1106 ret = -EINVAL; 1107 dev_info(&client->dev, "firmware did not run\n"); 1108 goto err; 1109 } 1110 1111 dev_info(&client->dev, "found a '%s' in warm state\n", 1112 dev->fe.ops.info.name); 1113 dev_info(&client->dev, "firmware version: %X.%X\n", 1114 (utmp >> 4) & 0xf, (utmp >> 0 & 0xf)); 1115 1116 if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) { 1117 m88ds3103b_dt_write(dev, 0x21, 0x92); 1118 m88ds3103b_dt_write(dev, 0x15, 0x6C); 1119 m88ds3103b_dt_write(dev, 0x17, 0xC1); 1120 m88ds3103b_dt_write(dev, 0x17, 0x81); 1121 } 1122 warm: 1123 /* warm state */ 1124 dev->warm = true; 1125 1126 /* init stats here in order signal app which stats are supported */ 1127 c->cnr.len = 1; 1128 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1129 c->post_bit_error.len = 1; 1130 c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1131 c->post_bit_count.len = 1; 1132 c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 1133 1134 return 0; 1135 err_release_firmware: 1136 release_firmware(firmware); 1137 err: 1138 dev_dbg(&client->dev, "failed=%d\n", ret); 1139 return ret; 1140 } 1141 1142 static int m88ds3103_sleep(struct dvb_frontend *fe) 1143 { 1144 struct m88ds3103_dev *dev = fe->demodulator_priv; 1145 struct i2c_client *client = dev->client; 1146 int ret; 1147 unsigned int utmp; 1148 1149 dev_dbg(&client->dev, "\n"); 1150 1151 dev->fe_status = 0; 1152 dev->delivery_system = SYS_UNDEFINED; 1153 1154 /* TS Hi-Z */ 1155 if (dev->chip_id == M88RS6000_CHIP_ID) 1156 utmp = 0x29; 1157 else 1158 utmp = 0x27; 1159 ret = m88ds3103_update_bits(dev, utmp, 0x01, 0x00); 1160 if (ret) 1161 goto err; 1162 1163 /* sleep */ 1164 ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x00); 1165 if (ret) 1166 goto err; 1167 ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x01); 1168 if (ret) 1169 goto err; 1170 ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x10); 1171 if (ret) 1172 goto err; 1173 1174 return 0; 1175 err: 1176 dev_dbg(&client->dev, "failed=%d\n", ret); 1177 return ret; 1178 } 1179 1180 static int m88ds3103_get_frontend(struct dvb_frontend *fe, 1181 struct dtv_frontend_properties *c) 1182 { 1183 struct m88ds3103_dev *dev = fe->demodulator_priv; 1184 struct i2c_client *client = dev->client; 1185 int ret; 1186 u8 buf[3]; 1187 1188 dev_dbg(&client->dev, "\n"); 1189 1190 if (!dev->warm || !(dev->fe_status & FE_HAS_LOCK)) { 1191 ret = 0; 1192 goto err; 1193 } 1194 1195 switch (c->delivery_system) { 1196 case SYS_DVBS: 1197 ret = regmap_bulk_read(dev->regmap, 0xe0, &buf[0], 1); 1198 if (ret) 1199 goto err; 1200 1201 ret = regmap_bulk_read(dev->regmap, 0xe6, &buf[1], 1); 1202 if (ret) 1203 goto err; 1204 1205 switch ((buf[0] >> 2) & 0x01) { 1206 case 0: 1207 c->inversion = INVERSION_OFF; 1208 break; 1209 case 1: 1210 c->inversion = INVERSION_ON; 1211 break; 1212 } 1213 1214 switch ((buf[1] >> 5) & 0x07) { 1215 case 0: 1216 c->fec_inner = FEC_7_8; 1217 break; 1218 case 1: 1219 c->fec_inner = FEC_5_6; 1220 break; 1221 case 2: 1222 c->fec_inner = FEC_3_4; 1223 break; 1224 case 3: 1225 c->fec_inner = FEC_2_3; 1226 break; 1227 case 4: 1228 c->fec_inner = FEC_1_2; 1229 break; 1230 default: 1231 dev_dbg(&client->dev, "invalid fec_inner\n"); 1232 } 1233 1234 c->modulation = QPSK; 1235 1236 break; 1237 case SYS_DVBS2: 1238 ret = regmap_bulk_read(dev->regmap, 0x7e, &buf[0], 1); 1239 if (ret) 1240 goto err; 1241 1242 ret = regmap_bulk_read(dev->regmap, 0x89, &buf[1], 1); 1243 if (ret) 1244 goto err; 1245 1246 ret = regmap_bulk_read(dev->regmap, 0xf2, &buf[2], 1); 1247 if (ret) 1248 goto err; 1249 1250 switch ((buf[0] >> 0) & 0x0f) { 1251 case 2: 1252 c->fec_inner = FEC_2_5; 1253 break; 1254 case 3: 1255 c->fec_inner = FEC_1_2; 1256 break; 1257 case 4: 1258 c->fec_inner = FEC_3_5; 1259 break; 1260 case 5: 1261 c->fec_inner = FEC_2_3; 1262 break; 1263 case 6: 1264 c->fec_inner = FEC_3_4; 1265 break; 1266 case 7: 1267 c->fec_inner = FEC_4_5; 1268 break; 1269 case 8: 1270 c->fec_inner = FEC_5_6; 1271 break; 1272 case 9: 1273 c->fec_inner = FEC_8_9; 1274 break; 1275 case 10: 1276 c->fec_inner = FEC_9_10; 1277 break; 1278 default: 1279 dev_dbg(&client->dev, "invalid fec_inner\n"); 1280 } 1281 1282 switch ((buf[0] >> 5) & 0x01) { 1283 case 0: 1284 c->pilot = PILOT_OFF; 1285 break; 1286 case 1: 1287 c->pilot = PILOT_ON; 1288 break; 1289 } 1290 1291 switch ((buf[0] >> 6) & 0x07) { 1292 case 0: 1293 c->modulation = QPSK; 1294 break; 1295 case 1: 1296 c->modulation = PSK_8; 1297 break; 1298 case 2: 1299 c->modulation = APSK_16; 1300 break; 1301 case 3: 1302 c->modulation = APSK_32; 1303 break; 1304 default: 1305 dev_dbg(&client->dev, "invalid modulation\n"); 1306 } 1307 1308 switch ((buf[1] >> 7) & 0x01) { 1309 case 0: 1310 c->inversion = INVERSION_OFF; 1311 break; 1312 case 1: 1313 c->inversion = INVERSION_ON; 1314 break; 1315 } 1316 1317 switch ((buf[2] >> 0) & 0x03) { 1318 case 0: 1319 c->rolloff = ROLLOFF_35; 1320 break; 1321 case 1: 1322 c->rolloff = ROLLOFF_25; 1323 break; 1324 case 2: 1325 c->rolloff = ROLLOFF_20; 1326 break; 1327 default: 1328 dev_dbg(&client->dev, "invalid rolloff\n"); 1329 } 1330 break; 1331 default: 1332 dev_dbg(&client->dev, "invalid delivery_system\n"); 1333 ret = -EINVAL; 1334 goto err; 1335 } 1336 1337 ret = regmap_bulk_read(dev->regmap, 0x6d, buf, 2); 1338 if (ret) 1339 goto err; 1340 1341 c->symbol_rate = DIV_ROUND_CLOSEST_ULL((u64)(buf[1] << 8 | buf[0] << 0) * dev->mclk, 0x10000); 1342 1343 return 0; 1344 err: 1345 dev_dbg(&client->dev, "failed=%d\n", ret); 1346 return ret; 1347 } 1348 1349 static int m88ds3103_read_snr(struct dvb_frontend *fe, u16 *snr) 1350 { 1351 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1352 1353 if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL) 1354 *snr = div_s64(c->cnr.stat[0].svalue, 100); 1355 else 1356 *snr = 0; 1357 1358 return 0; 1359 } 1360 1361 static int m88ds3103_read_ber(struct dvb_frontend *fe, u32 *ber) 1362 { 1363 struct m88ds3103_dev *dev = fe->demodulator_priv; 1364 1365 *ber = dev->dvbv3_ber; 1366 1367 return 0; 1368 } 1369 1370 static int m88ds3103_set_tone(struct dvb_frontend *fe, 1371 enum fe_sec_tone_mode fe_sec_tone_mode) 1372 { 1373 struct m88ds3103_dev *dev = fe->demodulator_priv; 1374 struct i2c_client *client = dev->client; 1375 int ret; 1376 unsigned int utmp, tone, reg_a1_mask; 1377 1378 dev_dbg(&client->dev, "fe_sec_tone_mode=%d\n", fe_sec_tone_mode); 1379 1380 if (!dev->warm) { 1381 ret = -EAGAIN; 1382 goto err; 1383 } 1384 1385 switch (fe_sec_tone_mode) { 1386 case SEC_TONE_ON: 1387 tone = 0; 1388 reg_a1_mask = 0x47; 1389 break; 1390 case SEC_TONE_OFF: 1391 tone = 1; 1392 reg_a1_mask = 0x00; 1393 break; 1394 default: 1395 dev_dbg(&client->dev, "invalid fe_sec_tone_mode\n"); 1396 ret = -EINVAL; 1397 goto err; 1398 } 1399 1400 utmp = tone << 7 | dev->cfg->envelope_mode << 5; 1401 ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp); 1402 if (ret) 1403 goto err; 1404 1405 utmp = 1 << 2; 1406 ret = m88ds3103_update_bits(dev, 0xa1, reg_a1_mask, utmp); 1407 if (ret) 1408 goto err; 1409 1410 return 0; 1411 err: 1412 dev_dbg(&client->dev, "failed=%d\n", ret); 1413 return ret; 1414 } 1415 1416 static int m88ds3103_set_voltage(struct dvb_frontend *fe, 1417 enum fe_sec_voltage fe_sec_voltage) 1418 { 1419 struct m88ds3103_dev *dev = fe->demodulator_priv; 1420 struct i2c_client *client = dev->client; 1421 int ret; 1422 unsigned int utmp; 1423 bool voltage_sel, voltage_dis; 1424 1425 dev_dbg(&client->dev, "fe_sec_voltage=%d\n", fe_sec_voltage); 1426 1427 if (!dev->warm) { 1428 ret = -EAGAIN; 1429 goto err; 1430 } 1431 1432 switch (fe_sec_voltage) { 1433 case SEC_VOLTAGE_18: 1434 voltage_sel = true; 1435 voltage_dis = false; 1436 break; 1437 case SEC_VOLTAGE_13: 1438 voltage_sel = false; 1439 voltage_dis = false; 1440 break; 1441 case SEC_VOLTAGE_OFF: 1442 voltage_sel = false; 1443 voltage_dis = true; 1444 break; 1445 default: 1446 dev_dbg(&client->dev, "invalid fe_sec_voltage\n"); 1447 ret = -EINVAL; 1448 goto err; 1449 } 1450 1451 /* output pin polarity */ 1452 voltage_sel ^= dev->cfg->lnb_hv_pol; 1453 voltage_dis ^= dev->cfg->lnb_en_pol; 1454 1455 utmp = voltage_dis << 1 | voltage_sel << 0; 1456 ret = m88ds3103_update_bits(dev, 0xa2, 0x03, utmp); 1457 if (ret) 1458 goto err; 1459 1460 return 0; 1461 err: 1462 dev_dbg(&client->dev, "failed=%d\n", ret); 1463 return ret; 1464 } 1465 1466 static int m88ds3103_diseqc_send_master_cmd(struct dvb_frontend *fe, 1467 struct dvb_diseqc_master_cmd *diseqc_cmd) 1468 { 1469 struct m88ds3103_dev *dev = fe->demodulator_priv; 1470 struct i2c_client *client = dev->client; 1471 int ret; 1472 unsigned int utmp; 1473 unsigned long timeout; 1474 1475 dev_dbg(&client->dev, "msg=%*ph\n", 1476 diseqc_cmd->msg_len, diseqc_cmd->msg); 1477 1478 if (!dev->warm) { 1479 ret = -EAGAIN; 1480 goto err; 1481 } 1482 1483 if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) { 1484 ret = -EINVAL; 1485 goto err; 1486 } 1487 1488 utmp = dev->cfg->envelope_mode << 5; 1489 ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp); 1490 if (ret) 1491 goto err; 1492 1493 ret = regmap_bulk_write(dev->regmap, 0xa3, diseqc_cmd->msg, 1494 diseqc_cmd->msg_len); 1495 if (ret) 1496 goto err; 1497 1498 ret = regmap_write(dev->regmap, 0xa1, 1499 (diseqc_cmd->msg_len - 1) << 3 | 0x07); 1500 if (ret) 1501 goto err; 1502 1503 /* wait DiSEqC TX ready */ 1504 #define SEND_MASTER_CMD_TIMEOUT 120 1505 timeout = jiffies + msecs_to_jiffies(SEND_MASTER_CMD_TIMEOUT); 1506 1507 /* DiSEqC message period is 13.5 ms per byte */ 1508 utmp = diseqc_cmd->msg_len * 13500; 1509 usleep_range(utmp - 4000, utmp); 1510 1511 for (utmp = 1; !time_after(jiffies, timeout) && utmp;) { 1512 ret = regmap_read(dev->regmap, 0xa1, &utmp); 1513 if (ret) 1514 goto err; 1515 utmp = (utmp >> 6) & 0x1; 1516 } 1517 1518 if (utmp == 0) { 1519 dev_dbg(&client->dev, "diseqc tx took %u ms\n", 1520 jiffies_to_msecs(jiffies) - 1521 (jiffies_to_msecs(timeout) - SEND_MASTER_CMD_TIMEOUT)); 1522 } else { 1523 dev_dbg(&client->dev, "diseqc tx timeout\n"); 1524 1525 ret = m88ds3103_update_bits(dev, 0xa1, 0xc0, 0x40); 1526 if (ret) 1527 goto err; 1528 } 1529 1530 ret = m88ds3103_update_bits(dev, 0xa2, 0xc0, 0x80); 1531 if (ret) 1532 goto err; 1533 1534 if (utmp == 1) { 1535 ret = -ETIMEDOUT; 1536 goto err; 1537 } 1538 1539 return 0; 1540 err: 1541 dev_dbg(&client->dev, "failed=%d\n", ret); 1542 return ret; 1543 } 1544 1545 static int m88ds3103_diseqc_send_burst(struct dvb_frontend *fe, 1546 enum fe_sec_mini_cmd fe_sec_mini_cmd) 1547 { 1548 struct m88ds3103_dev *dev = fe->demodulator_priv; 1549 struct i2c_client *client = dev->client; 1550 int ret; 1551 unsigned int utmp, burst; 1552 unsigned long timeout; 1553 1554 dev_dbg(&client->dev, "fe_sec_mini_cmd=%d\n", fe_sec_mini_cmd); 1555 1556 if (!dev->warm) { 1557 ret = -EAGAIN; 1558 goto err; 1559 } 1560 1561 utmp = dev->cfg->envelope_mode << 5; 1562 ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp); 1563 if (ret) 1564 goto err; 1565 1566 switch (fe_sec_mini_cmd) { 1567 case SEC_MINI_A: 1568 burst = 0x02; 1569 break; 1570 case SEC_MINI_B: 1571 burst = 0x01; 1572 break; 1573 default: 1574 dev_dbg(&client->dev, "invalid fe_sec_mini_cmd\n"); 1575 ret = -EINVAL; 1576 goto err; 1577 } 1578 1579 ret = regmap_write(dev->regmap, 0xa1, burst); 1580 if (ret) 1581 goto err; 1582 1583 /* wait DiSEqC TX ready */ 1584 #define SEND_BURST_TIMEOUT 40 1585 timeout = jiffies + msecs_to_jiffies(SEND_BURST_TIMEOUT); 1586 1587 /* DiSEqC ToneBurst period is 12.5 ms */ 1588 usleep_range(8500, 12500); 1589 1590 for (utmp = 1; !time_after(jiffies, timeout) && utmp;) { 1591 ret = regmap_read(dev->regmap, 0xa1, &utmp); 1592 if (ret) 1593 goto err; 1594 utmp = (utmp >> 6) & 0x1; 1595 } 1596 1597 if (utmp == 0) { 1598 dev_dbg(&client->dev, "diseqc tx took %u ms\n", 1599 jiffies_to_msecs(jiffies) - 1600 (jiffies_to_msecs(timeout) - SEND_BURST_TIMEOUT)); 1601 } else { 1602 dev_dbg(&client->dev, "diseqc tx timeout\n"); 1603 1604 ret = m88ds3103_update_bits(dev, 0xa1, 0xc0, 0x40); 1605 if (ret) 1606 goto err; 1607 } 1608 1609 ret = m88ds3103_update_bits(dev, 0xa2, 0xc0, 0x80); 1610 if (ret) 1611 goto err; 1612 1613 if (utmp == 1) { 1614 ret = -ETIMEDOUT; 1615 goto err; 1616 } 1617 1618 return 0; 1619 err: 1620 dev_dbg(&client->dev, "failed=%d\n", ret); 1621 return ret; 1622 } 1623 1624 static int m88ds3103_get_tune_settings(struct dvb_frontend *fe, 1625 struct dvb_frontend_tune_settings *s) 1626 { 1627 s->min_delay_ms = 3000; 1628 1629 return 0; 1630 } 1631 1632 static void m88ds3103_release(struct dvb_frontend *fe) 1633 { 1634 struct m88ds3103_dev *dev = fe->demodulator_priv; 1635 struct i2c_client *client = dev->client; 1636 1637 i2c_unregister_device(client); 1638 } 1639 1640 static int m88ds3103_select(struct i2c_mux_core *muxc, u32 chan) 1641 { 1642 struct m88ds3103_dev *dev = i2c_mux_priv(muxc); 1643 struct i2c_client *client = dev->client; 1644 int ret; 1645 struct i2c_msg msg = { 1646 .addr = client->addr, 1647 .flags = 0, 1648 .len = 2, 1649 .buf = "\x03\x11", 1650 }; 1651 1652 /* Open tuner I2C repeater for 1 xfer, closes automatically */ 1653 ret = __i2c_transfer(client->adapter, &msg, 1); 1654 if (ret != 1) { 1655 dev_warn(&client->dev, "i2c wr failed=%d\n", ret); 1656 if (ret >= 0) 1657 ret = -EREMOTEIO; 1658 return ret; 1659 } 1660 1661 return 0; 1662 } 1663 1664 /* 1665 * XXX: That is wrapper to m88ds3103_probe() via driver core in order to provide 1666 * proper I2C client for legacy media attach binding. 1667 * New users must use I2C client binding directly! 1668 */ 1669 struct dvb_frontend *m88ds3103_attach(const struct m88ds3103_config *cfg, 1670 struct i2c_adapter *i2c, 1671 struct i2c_adapter **tuner_i2c_adapter) 1672 { 1673 struct i2c_client *client; 1674 struct i2c_board_info board_info; 1675 struct m88ds3103_platform_data pdata = {}; 1676 1677 pdata.clk = cfg->clock; 1678 pdata.i2c_wr_max = cfg->i2c_wr_max; 1679 pdata.ts_mode = cfg->ts_mode; 1680 pdata.ts_clk = cfg->ts_clk; 1681 pdata.ts_clk_pol = cfg->ts_clk_pol; 1682 pdata.spec_inv = cfg->spec_inv; 1683 pdata.agc = cfg->agc; 1684 pdata.agc_inv = cfg->agc_inv; 1685 pdata.clk_out = cfg->clock_out; 1686 pdata.envelope_mode = cfg->envelope_mode; 1687 pdata.lnb_hv_pol = cfg->lnb_hv_pol; 1688 pdata.lnb_en_pol = cfg->lnb_en_pol; 1689 pdata.attach_in_use = true; 1690 1691 memset(&board_info, 0, sizeof(board_info)); 1692 strscpy(board_info.type, "m88ds3103", I2C_NAME_SIZE); 1693 board_info.addr = cfg->i2c_addr; 1694 board_info.platform_data = &pdata; 1695 client = i2c_new_client_device(i2c, &board_info); 1696 if (!i2c_client_has_driver(client)) 1697 return NULL; 1698 1699 *tuner_i2c_adapter = pdata.get_i2c_adapter(client); 1700 return pdata.get_dvb_frontend(client); 1701 } 1702 EXPORT_SYMBOL(m88ds3103_attach); 1703 1704 static const struct dvb_frontend_ops m88ds3103_ops = { 1705 .delsys = {SYS_DVBS, SYS_DVBS2}, 1706 .info = { 1707 .name = "Montage Technology M88DS3103", 1708 .frequency_min_hz = 950 * MHz, 1709 .frequency_max_hz = 2150 * MHz, 1710 .frequency_tolerance_hz = 5 * MHz, 1711 .symbol_rate_min = 1000000, 1712 .symbol_rate_max = 45000000, 1713 .caps = FE_CAN_INVERSION_AUTO | 1714 FE_CAN_FEC_1_2 | 1715 FE_CAN_FEC_2_3 | 1716 FE_CAN_FEC_3_4 | 1717 FE_CAN_FEC_4_5 | 1718 FE_CAN_FEC_5_6 | 1719 FE_CAN_FEC_6_7 | 1720 FE_CAN_FEC_7_8 | 1721 FE_CAN_FEC_8_9 | 1722 FE_CAN_FEC_AUTO | 1723 FE_CAN_QPSK | 1724 FE_CAN_RECOVER | 1725 FE_CAN_2G_MODULATION 1726 }, 1727 1728 .release = m88ds3103_release, 1729 1730 .get_tune_settings = m88ds3103_get_tune_settings, 1731 1732 .init = m88ds3103_init, 1733 .sleep = m88ds3103_sleep, 1734 1735 .set_frontend = m88ds3103_set_frontend, 1736 .get_frontend = m88ds3103_get_frontend, 1737 1738 .read_status = m88ds3103_read_status, 1739 .read_snr = m88ds3103_read_snr, 1740 .read_ber = m88ds3103_read_ber, 1741 1742 .diseqc_send_master_cmd = m88ds3103_diseqc_send_master_cmd, 1743 .diseqc_send_burst = m88ds3103_diseqc_send_burst, 1744 1745 .set_tone = m88ds3103_set_tone, 1746 .set_voltage = m88ds3103_set_voltage, 1747 }; 1748 1749 static struct dvb_frontend *m88ds3103_get_dvb_frontend(struct i2c_client *client) 1750 { 1751 struct m88ds3103_dev *dev = i2c_get_clientdata(client); 1752 1753 dev_dbg(&client->dev, "\n"); 1754 1755 return &dev->fe; 1756 } 1757 1758 static struct i2c_adapter *m88ds3103_get_i2c_adapter(struct i2c_client *client) 1759 { 1760 struct m88ds3103_dev *dev = i2c_get_clientdata(client); 1761 1762 dev_dbg(&client->dev, "\n"); 1763 1764 return dev->muxc->adapter[0]; 1765 } 1766 1767 static int m88ds3103_probe(struct i2c_client *client, 1768 const struct i2c_device_id *id) 1769 { 1770 struct m88ds3103_dev *dev; 1771 struct m88ds3103_platform_data *pdata = client->dev.platform_data; 1772 int ret; 1773 unsigned int utmp; 1774 1775 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 1776 if (!dev) { 1777 ret = -ENOMEM; 1778 goto err; 1779 } 1780 1781 dev->client = client; 1782 dev->config.clock = pdata->clk; 1783 dev->config.i2c_wr_max = pdata->i2c_wr_max; 1784 dev->config.ts_mode = pdata->ts_mode; 1785 dev->config.ts_clk = pdata->ts_clk * 1000; 1786 dev->config.ts_clk_pol = pdata->ts_clk_pol; 1787 dev->config.spec_inv = pdata->spec_inv; 1788 dev->config.agc_inv = pdata->agc_inv; 1789 dev->config.clock_out = pdata->clk_out; 1790 dev->config.envelope_mode = pdata->envelope_mode; 1791 dev->config.agc = pdata->agc; 1792 dev->config.lnb_hv_pol = pdata->lnb_hv_pol; 1793 dev->config.lnb_en_pol = pdata->lnb_en_pol; 1794 dev->cfg = &dev->config; 1795 /* create regmap */ 1796 dev->regmap_config.reg_bits = 8; 1797 dev->regmap_config.val_bits = 8; 1798 dev->regmap_config.lock_arg = dev; 1799 dev->regmap = devm_regmap_init_i2c(client, &dev->regmap_config); 1800 if (IS_ERR(dev->regmap)) { 1801 ret = PTR_ERR(dev->regmap); 1802 goto err_kfree; 1803 } 1804 1805 /* 0x00: chip id[6:0], 0x01: chip ver[7:0], 0x02: chip ver[15:8] */ 1806 ret = regmap_read(dev->regmap, 0x00, &utmp); 1807 if (ret) 1808 goto err_kfree; 1809 1810 dev->chip_id = utmp >> 1; 1811 dev->chiptype = (u8)id->driver_data; 1812 1813 dev_dbg(&client->dev, "chip_id=%02x\n", dev->chip_id); 1814 1815 switch (dev->chip_id) { 1816 case M88RS6000_CHIP_ID: 1817 case M88DS3103_CHIP_ID: 1818 break; 1819 default: 1820 ret = -ENODEV; 1821 dev_err(&client->dev, "Unknown device. Chip_id=%02x\n", dev->chip_id); 1822 goto err_kfree; 1823 } 1824 1825 switch (dev->cfg->clock_out) { 1826 case M88DS3103_CLOCK_OUT_DISABLED: 1827 utmp = 0x80; 1828 break; 1829 case M88DS3103_CLOCK_OUT_ENABLED: 1830 utmp = 0x00; 1831 break; 1832 case M88DS3103_CLOCK_OUT_ENABLED_DIV2: 1833 utmp = 0x10; 1834 break; 1835 default: 1836 ret = -EINVAL; 1837 goto err_kfree; 1838 } 1839 1840 if (!pdata->ts_clk) { 1841 ret = -EINVAL; 1842 goto err_kfree; 1843 } 1844 1845 /* 0x29 register is defined differently for m88rs6000. */ 1846 /* set internal tuner address to 0x21 */ 1847 if (dev->chip_id == M88RS6000_CHIP_ID) 1848 utmp = 0x00; 1849 1850 ret = regmap_write(dev->regmap, 0x29, utmp); 1851 if (ret) 1852 goto err_kfree; 1853 1854 /* sleep */ 1855 ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x00); 1856 if (ret) 1857 goto err_kfree; 1858 ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x01); 1859 if (ret) 1860 goto err_kfree; 1861 ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x10); 1862 if (ret) 1863 goto err_kfree; 1864 1865 /* create mux i2c adapter for tuner */ 1866 dev->muxc = i2c_mux_alloc(client->adapter, &client->dev, 1, 0, 0, 1867 m88ds3103_select, NULL); 1868 if (!dev->muxc) { 1869 ret = -ENOMEM; 1870 goto err_kfree; 1871 } 1872 dev->muxc->priv = dev; 1873 ret = i2c_mux_add_adapter(dev->muxc, 0, 0, 0); 1874 if (ret) 1875 goto err_kfree; 1876 1877 /* create dvb_frontend */ 1878 memcpy(&dev->fe.ops, &m88ds3103_ops, sizeof(struct dvb_frontend_ops)); 1879 if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) 1880 strscpy(dev->fe.ops.info.name, "Montage Technology M88DS3103B", 1881 sizeof(dev->fe.ops.info.name)); 1882 else if (dev->chip_id == M88RS6000_CHIP_ID) 1883 strscpy(dev->fe.ops.info.name, "Montage Technology M88RS6000", 1884 sizeof(dev->fe.ops.info.name)); 1885 if (!pdata->attach_in_use) 1886 dev->fe.ops.release = NULL; 1887 dev->fe.demodulator_priv = dev; 1888 i2c_set_clientdata(client, dev); 1889 1890 /* setup callbacks */ 1891 pdata->get_dvb_frontend = m88ds3103_get_dvb_frontend; 1892 pdata->get_i2c_adapter = m88ds3103_get_i2c_adapter; 1893 1894 if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) { 1895 /* enable i2c repeater for tuner */ 1896 m88ds3103_update_bits(dev, 0x11, 0x01, 0x01); 1897 1898 /* get frontend address */ 1899 ret = regmap_read(dev->regmap, 0x29, &utmp); 1900 if (ret) 1901 goto err_kfree; 1902 dev->dt_addr = ((utmp & 0x80) == 0) ? 0x42 >> 1 : 0x40 >> 1; 1903 dev_dbg(&client->dev, "dt addr is 0x%02x\n", dev->dt_addr); 1904 1905 dev->dt_client = i2c_new_dummy_device(client->adapter, 1906 dev->dt_addr); 1907 if (IS_ERR(dev->dt_client)) { 1908 ret = PTR_ERR(dev->dt_client); 1909 goto err_kfree; 1910 } 1911 } 1912 1913 return 0; 1914 err_kfree: 1915 kfree(dev); 1916 err: 1917 dev_dbg(&client->dev, "failed=%d\n", ret); 1918 return ret; 1919 } 1920 1921 static int m88ds3103_remove(struct i2c_client *client) 1922 { 1923 struct m88ds3103_dev *dev = i2c_get_clientdata(client); 1924 1925 dev_dbg(&client->dev, "\n"); 1926 1927 if (dev->dt_client) 1928 i2c_unregister_device(dev->dt_client); 1929 1930 i2c_mux_del_adapters(dev->muxc); 1931 1932 kfree(dev); 1933 return 0; 1934 } 1935 1936 static const struct i2c_device_id m88ds3103_id_table[] = { 1937 {"m88ds3103", M88DS3103_CHIPTYPE_3103}, 1938 {"m88rs6000", M88DS3103_CHIPTYPE_RS6000}, 1939 {"m88ds3103b", M88DS3103_CHIPTYPE_3103B}, 1940 {} 1941 }; 1942 MODULE_DEVICE_TABLE(i2c, m88ds3103_id_table); 1943 1944 static struct i2c_driver m88ds3103_driver = { 1945 .driver = { 1946 .name = "m88ds3103", 1947 .suppress_bind_attrs = true, 1948 }, 1949 .probe = m88ds3103_probe, 1950 .remove = m88ds3103_remove, 1951 .id_table = m88ds3103_id_table, 1952 }; 1953 1954 module_i2c_driver(m88ds3103_driver); 1955 1956 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); 1957 MODULE_DESCRIPTION("Montage Technology M88DS3103 DVB-S/S2 demodulator driver"); 1958 MODULE_LICENSE("GPL"); 1959 MODULE_FIRMWARE(M88DS3103_FIRMWARE); 1960 MODULE_FIRMWARE(M88RS6000_FIRMWARE); 1961 MODULE_FIRMWARE(M88DS3103B_FIRMWARE); 1962