1/* 2 Montage Technology DS3000/TS2020 - DVBS/S2 Demodulator/Tuner driver 3 Copyright (C) 2009 Konstantin Dimitrov <kosio.dimitrov@gmail.com> 4 5 Copyright (C) 2009 TurboSight.com 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 */ 21 22#include <linux/slab.h> 23#include <linux/kernel.h> 24#include <linux/module.h> 25#include <linux/moduleparam.h> 26#include <linux/init.h> 27#include <linux/firmware.h> 28 29#include "dvb_frontend.h" 30#include "ds3000.h" 31 32static int debug; 33 34#define dprintk(args...) \ 35 do { \ 36 if (debug) \ 37 printk(args); \ 38 } while (0) 39 40/* as of March 2009 current DS3000 firmware version is 1.78 */ 41/* DS3000 FW v1.78 MD5: a32d17910c4f370073f9346e71d34b80 */ 42#define DS3000_DEFAULT_FIRMWARE "dvb-fe-ds3000.fw" 43 44#define DS3000_SAMPLE_RATE 96000 /* in kHz */ 45#define DS3000_XTAL_FREQ 27000 /* in kHz */ 46 47/* Register values to initialise the demod in DVB-S mode */ 48static u8 ds3000_dvbs_init_tab[] = { 49 0x23, 0x05, 50 0x08, 0x03, 51 0x0c, 0x00, 52 0x21, 0x54, 53 0x25, 0x82, 54 0x27, 0x31, 55 0x30, 0x08, 56 0x31, 0x40, 57 0x32, 0x32, 58 0x33, 0x35, 59 0x35, 0xff, 60 0x3a, 0x00, 61 0x37, 0x10, 62 0x38, 0x10, 63 0x39, 0x02, 64 0x42, 0x60, 65 0x4a, 0x40, 66 0x4b, 0x04, 67 0x4d, 0x91, 68 0x5d, 0xc8, 69 0x50, 0x77, 70 0x51, 0x77, 71 0x52, 0x36, 72 0x53, 0x36, 73 0x56, 0x01, 74 0x63, 0x43, 75 0x64, 0x30, 76 0x65, 0x40, 77 0x68, 0x26, 78 0x69, 0x4c, 79 0x70, 0x20, 80 0x71, 0x70, 81 0x72, 0x04, 82 0x73, 0x00, 83 0x70, 0x40, 84 0x71, 0x70, 85 0x72, 0x04, 86 0x73, 0x00, 87 0x70, 0x60, 88 0x71, 0x70, 89 0x72, 0x04, 90 0x73, 0x00, 91 0x70, 0x80, 92 0x71, 0x70, 93 0x72, 0x04, 94 0x73, 0x00, 95 0x70, 0xa0, 96 0x71, 0x70, 97 0x72, 0x04, 98 0x73, 0x00, 99 0x70, 0x1f, 100 0x76, 0x00, 101 0x77, 0xd1, 102 0x78, 0x0c, 103 0x79, 0x80, 104 0x7f, 0x04, 105 0x7c, 0x00, 106 0x80, 0x86, 107 0x81, 0xa6, 108 0x85, 0x04, 109 0xcd, 0xf4, 110 0x90, 0x33, 111 0xa0, 0x44, 112 0xc0, 0x18, 113 0xc3, 0x10, 114 0xc4, 0x08, 115 0xc5, 0x80, 116 0xc6, 0x80, 117 0xc7, 0x0a, 118 0xc8, 0x1a, 119 0xc9, 0x80, 120 0xfe, 0x92, 121 0xe0, 0xf8, 122 0xe6, 0x8b, 123 0xd0, 0x40, 124 0xf8, 0x20, 125 0xfa, 0x0f, 126 0xfd, 0x20, 127 0xad, 0x20, 128 0xae, 0x07, 129 0xb8, 0x00, 130}; 131 132/* Register values to initialise the demod in DVB-S2 mode */ 133static u8 ds3000_dvbs2_init_tab[] = { 134 0x23, 0x0f, 135 0x08, 0x07, 136 0x0c, 0x00, 137 0x21, 0x54, 138 0x25, 0x82, 139 0x27, 0x31, 140 0x30, 0x08, 141 0x31, 0x32, 142 0x32, 0x32, 143 0x33, 0x35, 144 0x35, 0xff, 145 0x3a, 0x00, 146 0x37, 0x10, 147 0x38, 0x10, 148 0x39, 0x02, 149 0x42, 0x60, 150 0x4a, 0x80, 151 0x4b, 0x04, 152 0x4d, 0x81, 153 0x5d, 0x88, 154 0x50, 0x36, 155 0x51, 0x36, 156 0x52, 0x36, 157 0x53, 0x36, 158 0x63, 0x60, 159 0x64, 0x10, 160 0x65, 0x10, 161 0x68, 0x04, 162 0x69, 0x29, 163 0x70, 0x20, 164 0x71, 0x70, 165 0x72, 0x04, 166 0x73, 0x00, 167 0x70, 0x40, 168 0x71, 0x70, 169 0x72, 0x04, 170 0x73, 0x00, 171 0x70, 0x60, 172 0x71, 0x70, 173 0x72, 0x04, 174 0x73, 0x00, 175 0x70, 0x80, 176 0x71, 0x70, 177 0x72, 0x04, 178 0x73, 0x00, 179 0x70, 0xa0, 180 0x71, 0x70, 181 0x72, 0x04, 182 0x73, 0x00, 183 0x70, 0x1f, 184 0xa0, 0x44, 185 0xc0, 0x08, 186 0xc1, 0x10, 187 0xc2, 0x08, 188 0xc3, 0x10, 189 0xc4, 0x08, 190 0xc5, 0xf0, 191 0xc6, 0xf0, 192 0xc7, 0x0a, 193 0xc8, 0x1a, 194 0xc9, 0x80, 195 0xca, 0x23, 196 0xcb, 0x24, 197 0xce, 0x74, 198 0x90, 0x03, 199 0x76, 0x80, 200 0x77, 0x42, 201 0x78, 0x0a, 202 0x79, 0x80, 203 0xad, 0x40, 204 0xae, 0x07, 205 0x7f, 0xd4, 206 0x7c, 0x00, 207 0x80, 0xa8, 208 0x81, 0xda, 209 0x7c, 0x01, 210 0x80, 0xda, 211 0x81, 0xec, 212 0x7c, 0x02, 213 0x80, 0xca, 214 0x81, 0xeb, 215 0x7c, 0x03, 216 0x80, 0xba, 217 0x81, 0xdb, 218 0x85, 0x08, 219 0x86, 0x00, 220 0x87, 0x02, 221 0x89, 0x80, 222 0x8b, 0x44, 223 0x8c, 0xaa, 224 0x8a, 0x10, 225 0xba, 0x00, 226 0xf5, 0x04, 227 0xfe, 0x44, 228 0xd2, 0x32, 229 0xb8, 0x00, 230}; 231 232/* DS3000 doesn't need some parameters as input and auto-detects them */ 233/* save input from the application of those parameters */ 234struct ds3000_tuning { 235 u32 frequency; 236 u32 symbol_rate; 237 fe_spectral_inversion_t inversion; 238 enum fe_code_rate fec; 239 240 /* input values */ 241 u8 inversion_val; 242 fe_modulation_t delivery; 243 u8 rolloff; 244}; 245 246struct ds3000_state { 247 struct i2c_adapter *i2c; 248 const struct ds3000_config *config; 249 250 struct dvb_frontend frontend; 251 252 struct ds3000_tuning dcur; 253 struct ds3000_tuning dnxt; 254 255 u8 skip_fw_load; 256 257 /* previous uncorrected block counter for DVB-S2 */ 258 u16 prevUCBS2; 259}; 260 261static int ds3000_writereg(struct ds3000_state *state, int reg, int data) 262{ 263 u8 buf[] = { reg, data }; 264 struct i2c_msg msg = { .addr = state->config->demod_address, 265 .flags = 0, .buf = buf, .len = 2 }; 266 int err; 267 268 dprintk("%s: write reg 0x%02x, value 0x%02x\n", __func__, reg, data); 269 270 err = i2c_transfer(state->i2c, &msg, 1); 271 if (err != 1) { 272 printk(KERN_ERR "%s: writereg error(err == %i, reg == 0x%02x," 273 " value == 0x%02x)\n", __func__, err, reg, data); 274 return -EREMOTEIO; 275 } 276 277 return 0; 278} 279 280static int ds3000_tuner_writereg(struct ds3000_state *state, int reg, int data) 281{ 282 u8 buf[] = { reg, data }; 283 struct i2c_msg msg = { .addr = 0x60, 284 .flags = 0, .buf = buf, .len = 2 }; 285 int err; 286 287 dprintk("%s: write reg 0x%02x, value 0x%02x\n", __func__, reg, data); 288 289 ds3000_writereg(state, 0x03, 0x11); 290 err = i2c_transfer(state->i2c, &msg, 1); 291 if (err != 1) { 292 printk("%s: writereg error(err == %i, reg == 0x%02x," 293 " value == 0x%02x)\n", __func__, err, reg, data); 294 return -EREMOTEIO; 295 } 296 297 return 0; 298} 299 300/* I2C write for 8k firmware load */ 301static int ds3000_writeFW(struct ds3000_state *state, int reg, 302 const u8 *data, u16 len) 303{ 304 int i, ret = -EREMOTEIO; 305 struct i2c_msg msg; 306 u8 *buf; 307 308 buf = kmalloc(3, GFP_KERNEL); 309 if (buf == NULL) { 310 printk(KERN_ERR "Unable to kmalloc\n"); 311 ret = -ENOMEM; 312 goto error; 313 } 314 315 *(buf) = reg; 316 317 msg.addr = state->config->demod_address; 318 msg.flags = 0; 319 msg.buf = buf; 320 msg.len = 3; 321 322 for (i = 0; i < len; i += 2) { 323 memcpy(buf + 1, data + i, 2); 324 325 dprintk("%s: write reg 0x%02x, len = %d\n", __func__, reg, len); 326 327 ret = i2c_transfer(state->i2c, &msg, 1); 328 if (ret != 1) { 329 printk(KERN_ERR "%s: write error(err == %i, " 330 "reg == 0x%02x\n", __func__, ret, reg); 331 ret = -EREMOTEIO; 332 } 333 } 334 335error: 336 kfree(buf); 337 338 return ret; 339} 340 341static int ds3000_readreg(struct ds3000_state *state, u8 reg) 342{ 343 int ret; 344 u8 b0[] = { reg }; 345 u8 b1[] = { 0 }; 346 struct i2c_msg msg[] = { 347 { 348 .addr = state->config->demod_address, 349 .flags = 0, 350 .buf = b0, 351 .len = 1 352 }, { 353 .addr = state->config->demod_address, 354 .flags = I2C_M_RD, 355 .buf = b1, 356 .len = 1 357 } 358 }; 359 360 ret = i2c_transfer(state->i2c, msg, 2); 361 362 if (ret != 2) { 363 printk(KERN_ERR "%s: reg=0x%x(error=%d)\n", __func__, reg, ret); 364 return ret; 365 } 366 367 dprintk("%s: read reg 0x%02x, value 0x%02x\n", __func__, reg, b1[0]); 368 369 return b1[0]; 370} 371 372static int ds3000_tuner_readreg(struct ds3000_state *state, u8 reg) 373{ 374 int ret; 375 u8 b0[] = { reg }; 376 u8 b1[] = { 0 }; 377 struct i2c_msg msg[] = { 378 { 379 .addr = 0x60, 380 .flags = 0, 381 .buf = b0, 382 .len = 1 383 }, { 384 .addr = 0x60, 385 .flags = I2C_M_RD, 386 .buf = b1, 387 .len = 1 388 } 389 }; 390 391 ds3000_writereg(state, 0x03, 0x12); 392 ret = i2c_transfer(state->i2c, msg, 2); 393 394 if (ret != 2) { 395 printk(KERN_ERR "%s: reg=0x%x(error=%d)\n", __func__, reg, ret); 396 return ret; 397 } 398 399 dprintk("%s: read reg 0x%02x, value 0x%02x\n", __func__, reg, b1[0]); 400 401 return b1[0]; 402} 403 404static int ds3000_set_inversion(struct ds3000_state *state, 405 fe_spectral_inversion_t inversion) 406{ 407 dprintk("%s(%d)\n", __func__, inversion); 408 409 switch (inversion) { 410 case INVERSION_OFF: 411 case INVERSION_ON: 412 case INVERSION_AUTO: 413 break; 414 default: 415 return -EINVAL; 416 } 417 418 state->dnxt.inversion = inversion; 419 420 return 0; 421} 422 423static int ds3000_set_symbolrate(struct ds3000_state *state, u32 rate) 424{ 425 int ret = 0; 426 427 dprintk("%s()\n", __func__); 428 429 dprintk("%s() symbol_rate = %d\n", __func__, state->dnxt.symbol_rate); 430 431 /* check if symbol rate is within limits */ 432 if ((state->dnxt.symbol_rate > 433 state->frontend.ops.info.symbol_rate_max) || 434 (state->dnxt.symbol_rate < 435 state->frontend.ops.info.symbol_rate_min)) 436 ret = -EOPNOTSUPP; 437 438 state->dnxt.symbol_rate = rate; 439 440 return ret; 441} 442 443static int ds3000_load_firmware(struct dvb_frontend *fe, 444 const struct firmware *fw); 445 446static int ds3000_firmware_ondemand(struct dvb_frontend *fe) 447{ 448 struct ds3000_state *state = fe->demodulator_priv; 449 const struct firmware *fw; 450 int ret = 0; 451 452 dprintk("%s()\n", __func__); 453 454 if (ds3000_readreg(state, 0xb2) <= 0) 455 return ret; 456 457 if (state->skip_fw_load) 458 return 0; 459 /* Load firmware */ 460 /* request the firmware, this will block until someone uploads it */ 461 printk(KERN_INFO "%s: Waiting for firmware upload (%s)...\n", __func__, 462 DS3000_DEFAULT_FIRMWARE); 463 ret = request_firmware(&fw, DS3000_DEFAULT_FIRMWARE, 464 state->i2c->dev.parent); 465 printk(KERN_INFO "%s: Waiting for firmware upload(2)...\n", __func__); 466 if (ret) { 467 printk(KERN_ERR "%s: No firmware uploaded (timeout or file not " 468 "found?)\n", __func__); 469 return ret; 470 } 471 472 /* Make sure we don't recurse back through here during loading */ 473 state->skip_fw_load = 1; 474 475 ret = ds3000_load_firmware(fe, fw); 476 if (ret) 477 printk("%s: Writing firmware to device failed\n", __func__); 478 479 release_firmware(fw); 480 481 dprintk("%s: Firmware upload %s\n", __func__, 482 ret == 0 ? "complete" : "failed"); 483 484 /* Ensure firmware is always loaded if required */ 485 state->skip_fw_load = 0; 486 487 return ret; 488} 489 490static int ds3000_load_firmware(struct dvb_frontend *fe, 491 const struct firmware *fw) 492{ 493 struct ds3000_state *state = fe->demodulator_priv; 494 495 dprintk("%s\n", __func__); 496 dprintk("Firmware is %zu bytes (%02x %02x .. %02x %02x)\n", 497 fw->size, 498 fw->data[0], 499 fw->data[1], 500 fw->data[fw->size - 2], 501 fw->data[fw->size - 1]); 502 503 /* Begin the firmware load process */ 504 ds3000_writereg(state, 0xb2, 0x01); 505 /* write the entire firmware */ 506 ds3000_writeFW(state, 0xb0, fw->data, fw->size); 507 ds3000_writereg(state, 0xb2, 0x00); 508 509 return 0; 510} 511 512static void ds3000_dump_registers(struct dvb_frontend *fe) 513{ 514 struct ds3000_state *state = fe->demodulator_priv; 515 int x, y, reg = 0, val; 516 517 for (y = 0; y < 16; y++) { 518 dprintk("%s: %02x: ", __func__, y); 519 for (x = 0; x < 16; x++) { 520 reg = (y << 4) + x; 521 val = ds3000_readreg(state, reg); 522 if (x != 15) 523 dprintk("%02x ", val); 524 else 525 dprintk("%02x\n", val); 526 } 527 } 528 dprintk("%s: -- DS3000 DUMP DONE --\n", __func__); 529} 530 531static int ds3000_read_status(struct dvb_frontend *fe, fe_status_t* status) 532{ 533 struct ds3000_state *state = fe->demodulator_priv; 534 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 535 int lock; 536 537 *status = 0; 538 539 switch (c->delivery_system) { 540 case SYS_DVBS: 541 lock = ds3000_readreg(state, 0xd1); 542 if ((lock & 0x07) == 0x07) 543 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | 544 FE_HAS_VITERBI | FE_HAS_SYNC | 545 FE_HAS_LOCK; 546 547 break; 548 case SYS_DVBS2: 549 lock = ds3000_readreg(state, 0x0d); 550 if ((lock & 0x8f) == 0x8f) 551 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | 552 FE_HAS_VITERBI | FE_HAS_SYNC | 553 FE_HAS_LOCK; 554 555 break; 556 default: 557 return 1; 558 } 559 560 dprintk("%s: status = 0x%02x\n", __func__, lock); 561 562 return 0; 563} 564 565#define FE_IS_TUNED (FE_HAS_SIGNAL + FE_HAS_LOCK) 566static int ds3000_is_tuned(struct dvb_frontend *fe) 567{ 568 fe_status_t tunerstat; 569 570 ds3000_read_status(fe, &tunerstat); 571 572 return ((tunerstat & FE_IS_TUNED) == FE_IS_TUNED); 573} 574 575/* read DS3000 BER value */ 576static int ds3000_read_ber(struct dvb_frontend *fe, u32* ber) 577{ 578 struct ds3000_state *state = fe->demodulator_priv; 579 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 580 u8 data; 581 u32 ber_reading, lpdc_frames; 582 583 dprintk("%s()\n", __func__); 584 585 switch (c->delivery_system) { 586 case SYS_DVBS: 587 /* set the number of bytes checked during 588 BER estimation */ 589 ds3000_writereg(state, 0xf9, 0x04); 590 /* read BER estimation status */ 591 data = ds3000_readreg(state, 0xf8); 592 /* check if BER estimation is ready */ 593 if ((data & 0x10) == 0) { 594 /* this is the number of error bits, 595 to calculate the bit error rate 596 divide to 8388608 */ 597 *ber = (ds3000_readreg(state, 0xf7) << 8) | 598 ds3000_readreg(state, 0xf6); 599 /* start counting error bits */ 600 /* need to be set twice 601 otherwise it fails sometimes */ 602 data |= 0x10; 603 ds3000_writereg(state, 0xf8, data); 604 ds3000_writereg(state, 0xf8, data); 605 } else 606 /* used to indicate that BER estimation 607 is not ready, i.e. BER is unknown */ 608 *ber = 0xffffffff; 609 break; 610 case SYS_DVBS2: 611 /* read the number of LPDC decoded frames */ 612 lpdc_frames = (ds3000_readreg(state, 0xd7) << 16) | 613 (ds3000_readreg(state, 0xd6) << 8) | 614 ds3000_readreg(state, 0xd5); 615 /* read the number of packets with bad CRC */ 616 ber_reading = (ds3000_readreg(state, 0xf8) << 8) | 617 ds3000_readreg(state, 0xf7); 618 if (lpdc_frames > 750) { 619 /* clear LPDC frame counters */ 620 ds3000_writereg(state, 0xd1, 0x01); 621 /* clear bad packets counter */ 622 ds3000_writereg(state, 0xf9, 0x01); 623 /* enable bad packets counter */ 624 ds3000_writereg(state, 0xf9, 0x00); 625 /* enable LPDC frame counters */ 626 ds3000_writereg(state, 0xd1, 0x00); 627 *ber = ber_reading; 628 } else 629 /* used to indicate that BER estimation is not ready, 630 i.e. BER is unknown */ 631 *ber = 0xffffffff; 632 break; 633 default: 634 return 1; 635 } 636 637 return 0; 638} 639 640/* read TS2020 signal strength */ 641static int ds3000_read_signal_strength(struct dvb_frontend *fe, 642 u16 *signal_strength) 643{ 644 struct ds3000_state *state = fe->demodulator_priv; 645 u16 sig_reading, sig_strength; 646 u8 rfgain, bbgain; 647 648 dprintk("%s()\n", __func__); 649 650 rfgain = ds3000_tuner_readreg(state, 0x3d) & 0x1f; 651 bbgain = ds3000_tuner_readreg(state, 0x21) & 0x1f; 652 653 if (rfgain > 15) 654 rfgain = 15; 655 if (bbgain > 13) 656 bbgain = 13; 657 658 sig_reading = rfgain * 2 + bbgain * 3; 659 660 sig_strength = 40 + (64 - sig_reading) * 50 / 64 ; 661 662 /* cook the value to be suitable for szap-s2 human readable output */ 663 *signal_strength = sig_strength * 1000; 664 665 dprintk("%s: raw / cooked = 0x%04x / 0x%04x\n", __func__, 666 sig_reading, *signal_strength); 667 668 return 0; 669} 670 671/* calculate DS3000 snr value in dB */ 672static int ds3000_read_snr(struct dvb_frontend *fe, u16 *snr) 673{ 674 struct ds3000_state *state = fe->demodulator_priv; 675 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 676 u8 snr_reading, snr_value; 677 u32 dvbs2_signal_reading, dvbs2_noise_reading, tmp; 678 static const u16 dvbs_snr_tab[] = { /* 20 x Table (rounded up) */ 679 0x0000, 0x1b13, 0x2aea, 0x3627, 0x3ede, 0x45fe, 0x4c03, 680 0x513a, 0x55d4, 0x59f2, 0x5dab, 0x6111, 0x6431, 0x6717, 681 0x69c9, 0x6c4e, 0x6eac, 0x70e8, 0x7304, 0x7505 682 }; 683 static const u16 dvbs2_snr_tab[] = { /* 80 x Table (rounded up) */ 684 0x0000, 0x0bc2, 0x12a3, 0x1785, 0x1b4e, 0x1e65, 0x2103, 685 0x2347, 0x2546, 0x2710, 0x28ae, 0x2a28, 0x2b83, 0x2cc5, 686 0x2df1, 0x2f09, 0x3010, 0x3109, 0x31f4, 0x32d2, 0x33a6, 687 0x3470, 0x3531, 0x35ea, 0x369b, 0x3746, 0x37ea, 0x3888, 688 0x3920, 0x39b3, 0x3a42, 0x3acc, 0x3b51, 0x3bd3, 0x3c51, 689 0x3ccb, 0x3d42, 0x3db6, 0x3e27, 0x3e95, 0x3f00, 0x3f68, 690 0x3fcf, 0x4033, 0x4094, 0x40f4, 0x4151, 0x41ac, 0x4206, 691 0x425e, 0x42b4, 0x4308, 0x435b, 0x43ac, 0x43fc, 0x444a, 692 0x4497, 0x44e2, 0x452d, 0x4576, 0x45bd, 0x4604, 0x4649, 693 0x468e, 0x46d1, 0x4713, 0x4755, 0x4795, 0x47d4, 0x4813, 694 0x4851, 0x488d, 0x48c9, 0x4904, 0x493f, 0x4978, 0x49b1, 695 0x49e9, 0x4a20, 0x4a57 696 }; 697 698 dprintk("%s()\n", __func__); 699 700 switch (c->delivery_system) { 701 case SYS_DVBS: 702 snr_reading = ds3000_readreg(state, 0xff); 703 snr_reading /= 8; 704 if (snr_reading == 0) 705 *snr = 0x0000; 706 else { 707 if (snr_reading > 20) 708 snr_reading = 20; 709 snr_value = dvbs_snr_tab[snr_reading - 1] * 10 / 23026; 710 /* cook the value to be suitable for szap-s2 711 human readable output */ 712 *snr = snr_value * 8 * 655; 713 } 714 dprintk("%s: raw / cooked = 0x%02x / 0x%04x\n", __func__, 715 snr_reading, *snr); 716 break; 717 case SYS_DVBS2: 718 dvbs2_noise_reading = (ds3000_readreg(state, 0x8c) & 0x3f) + 719 (ds3000_readreg(state, 0x8d) << 4); 720 dvbs2_signal_reading = ds3000_readreg(state, 0x8e); 721 tmp = dvbs2_signal_reading * dvbs2_signal_reading >> 1; 722 if (tmp == 0) { 723 *snr = 0x0000; 724 return 0; 725 } 726 if (dvbs2_noise_reading == 0) { 727 snr_value = 0x0013; 728 /* cook the value to be suitable for szap-s2 729 human readable output */ 730 *snr = 0xffff; 731 return 0; 732 } 733 if (tmp > dvbs2_noise_reading) { 734 snr_reading = tmp / dvbs2_noise_reading; 735 if (snr_reading > 80) 736 snr_reading = 80; 737 snr_value = dvbs2_snr_tab[snr_reading - 1] / 1000; 738 /* cook the value to be suitable for szap-s2 739 human readable output */ 740 *snr = snr_value * 5 * 655; 741 } else { 742 snr_reading = dvbs2_noise_reading / tmp; 743 if (snr_reading > 80) 744 snr_reading = 80; 745 *snr = -(dvbs2_snr_tab[snr_reading] / 1000); 746 } 747 dprintk("%s: raw / cooked = 0x%02x / 0x%04x\n", __func__, 748 snr_reading, *snr); 749 break; 750 default: 751 return 1; 752 } 753 754 return 0; 755} 756 757/* read DS3000 uncorrected blocks */ 758static int ds3000_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) 759{ 760 struct ds3000_state *state = fe->demodulator_priv; 761 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 762 u8 data; 763 u16 _ucblocks; 764 765 dprintk("%s()\n", __func__); 766 767 switch (c->delivery_system) { 768 case SYS_DVBS: 769 *ucblocks = (ds3000_readreg(state, 0xf5) << 8) | 770 ds3000_readreg(state, 0xf4); 771 data = ds3000_readreg(state, 0xf8); 772 /* clear packet counters */ 773 data &= ~0x20; 774 ds3000_writereg(state, 0xf8, data); 775 /* enable packet counters */ 776 data |= 0x20; 777 ds3000_writereg(state, 0xf8, data); 778 break; 779 case SYS_DVBS2: 780 _ucblocks = (ds3000_readreg(state, 0xe2) << 8) | 781 ds3000_readreg(state, 0xe1); 782 if (_ucblocks > state->prevUCBS2) 783 *ucblocks = _ucblocks - state->prevUCBS2; 784 else 785 *ucblocks = state->prevUCBS2 - _ucblocks; 786 state->prevUCBS2 = _ucblocks; 787 break; 788 default: 789 return 1; 790 } 791 792 return 0; 793} 794 795/* Overwrite the current tuning params, we are about to tune */ 796static void ds3000_clone_params(struct dvb_frontend *fe) 797{ 798 struct ds3000_state *state = fe->demodulator_priv; 799 memcpy(&state->dcur, &state->dnxt, sizeof(state->dcur)); 800} 801 802static int ds3000_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone) 803{ 804 struct ds3000_state *state = fe->demodulator_priv; 805 u8 data; 806 807 dprintk("%s(%d)\n", __func__, tone); 808 if ((tone != SEC_TONE_ON) && (tone != SEC_TONE_OFF)) { 809 printk(KERN_ERR "%s: Invalid, tone=%d\n", __func__, tone); 810 return -EINVAL; 811 } 812 813 data = ds3000_readreg(state, 0xa2); 814 data &= ~0xc0; 815 ds3000_writereg(state, 0xa2, data); 816 817 switch (tone) { 818 case SEC_TONE_ON: 819 dprintk("%s: setting tone on\n", __func__); 820 data = ds3000_readreg(state, 0xa1); 821 data &= ~0x43; 822 data |= 0x04; 823 ds3000_writereg(state, 0xa1, data); 824 break; 825 case SEC_TONE_OFF: 826 dprintk("%s: setting tone off\n", __func__); 827 data = ds3000_readreg(state, 0xa2); 828 data |= 0x80; 829 ds3000_writereg(state, 0xa2, data); 830 break; 831 } 832 833 return 0; 834} 835 836static int ds3000_send_diseqc_msg(struct dvb_frontend *fe, 837 struct dvb_diseqc_master_cmd *d) 838{ 839 struct ds3000_state *state = fe->demodulator_priv; 840 int i; 841 u8 data; 842 843 /* Dump DiSEqC message */ 844 dprintk("%s(", __func__); 845 for (i = 0 ; i < d->msg_len;) { 846 dprintk("0x%02x", d->msg[i]); 847 if (++i < d->msg_len) 848 dprintk(", "); 849 } 850 851 /* enable DiSEqC message send pin */ 852 data = ds3000_readreg(state, 0xa2); 853 data &= ~0xc0; 854 ds3000_writereg(state, 0xa2, data); 855 856 /* DiSEqC message */ 857 for (i = 0; i < d->msg_len; i++) 858 ds3000_writereg(state, 0xa3 + i, d->msg[i]); 859 860 data = ds3000_readreg(state, 0xa1); 861 /* clear DiSEqC message length and status, 862 enable DiSEqC message send */ 863 data &= ~0xf8; 864 /* set DiSEqC mode, modulation active during 33 pulses, 865 set DiSEqC message length */ 866 data |= ((d->msg_len - 1) << 3) | 0x07; 867 ds3000_writereg(state, 0xa1, data); 868 869 /* wait up to 150ms for DiSEqC transmission to complete */ 870 for (i = 0; i < 15; i++) { 871 data = ds3000_readreg(state, 0xa1); 872 if ((data & 0x40) == 0) 873 break; 874 msleep(10); 875 } 876 877 /* DiSEqC timeout after 150ms */ 878 if (i == 15) { 879 data = ds3000_readreg(state, 0xa1); 880 data &= ~0x80; 881 data |= 0x40; 882 ds3000_writereg(state, 0xa1, data); 883 884 data = ds3000_readreg(state, 0xa2); 885 data &= ~0xc0; 886 data |= 0x80; 887 ds3000_writereg(state, 0xa2, data); 888 889 return 1; 890 } 891 892 data = ds3000_readreg(state, 0xa2); 893 data &= ~0xc0; 894 data |= 0x80; 895 ds3000_writereg(state, 0xa2, data); 896 897 return 0; 898} 899 900/* Send DiSEqC burst */ 901static int ds3000_diseqc_send_burst(struct dvb_frontend *fe, 902 fe_sec_mini_cmd_t burst) 903{ 904 struct ds3000_state *state = fe->demodulator_priv; 905 int i; 906 u8 data; 907 908 dprintk("%s()\n", __func__); 909 910 data = ds3000_readreg(state, 0xa2); 911 data &= ~0xc0; 912 ds3000_writereg(state, 0xa2, data); 913 914 /* DiSEqC burst */ 915 if (burst == SEC_MINI_A) 916 /* Unmodulated tone burst */ 917 ds3000_writereg(state, 0xa1, 0x02); 918 else if (burst == SEC_MINI_B) 919 /* Modulated tone burst */ 920 ds3000_writereg(state, 0xa1, 0x01); 921 else 922 return -EINVAL; 923 924 msleep(13); 925 for (i = 0; i < 5; i++) { 926 data = ds3000_readreg(state, 0xa1); 927 if ((data & 0x40) == 0) 928 break; 929 msleep(1); 930 } 931 932 if (i == 5) { 933 data = ds3000_readreg(state, 0xa1); 934 data &= ~0x80; 935 data |= 0x40; 936 ds3000_writereg(state, 0xa1, data); 937 938 data = ds3000_readreg(state, 0xa2); 939 data &= ~0xc0; 940 data |= 0x80; 941 ds3000_writereg(state, 0xa2, data); 942 943 return 1; 944 } 945 946 data = ds3000_readreg(state, 0xa2); 947 data &= ~0xc0; 948 data |= 0x80; 949 ds3000_writereg(state, 0xa2, data); 950 951 return 0; 952} 953 954static void ds3000_release(struct dvb_frontend *fe) 955{ 956 struct ds3000_state *state = fe->demodulator_priv; 957 dprintk("%s\n", __func__); 958 kfree(state); 959} 960 961static struct dvb_frontend_ops ds3000_ops; 962 963struct dvb_frontend *ds3000_attach(const struct ds3000_config *config, 964 struct i2c_adapter *i2c) 965{ 966 struct ds3000_state *state = NULL; 967 int ret; 968 969 dprintk("%s\n", __func__); 970 971 /* allocate memory for the internal state */ 972 state = kzalloc(sizeof(struct ds3000_state), GFP_KERNEL); 973 if (state == NULL) { 974 printk(KERN_ERR "Unable to kmalloc\n"); 975 goto error2; 976 } 977 978 state->config = config; 979 state->i2c = i2c; 980 state->prevUCBS2 = 0; 981 982 /* check if the demod is present */ 983 ret = ds3000_readreg(state, 0x00) & 0xfe; 984 if (ret != 0xe0) { 985 printk(KERN_ERR "Invalid probe, probably not a DS3000\n"); 986 goto error3; 987 } 988 989 printk(KERN_INFO "DS3000 chip version: %d.%d attached.\n", 990 ds3000_readreg(state, 0x02), 991 ds3000_readreg(state, 0x01)); 992 993 memcpy(&state->frontend.ops, &ds3000_ops, 994 sizeof(struct dvb_frontend_ops)); 995 state->frontend.demodulator_priv = state; 996 return &state->frontend; 997 998error3: 999 kfree(state); 1000error2: 1001 return NULL; 1002} 1003EXPORT_SYMBOL(ds3000_attach); 1004 1005static int ds3000_set_property(struct dvb_frontend *fe, 1006 struct dtv_property *tvp) 1007{ 1008 dprintk("%s(..)\n", __func__); 1009 return 0; 1010} 1011 1012static int ds3000_get_property(struct dvb_frontend *fe, 1013 struct dtv_property *tvp) 1014{ 1015 dprintk("%s(..)\n", __func__); 1016 return 0; 1017} 1018 1019static int ds3000_tune(struct dvb_frontend *fe, 1020 struct dvb_frontend_parameters *p) 1021{ 1022 struct ds3000_state *state = fe->demodulator_priv; 1023 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1024 1025 int ret = 0, retune, i; 1026 u8 status, mlpf, mlpf_new, mlpf_max, mlpf_min, nlpf; 1027 u16 value, ndiv; 1028 u32 f3db; 1029 1030 dprintk("%s() ", __func__); 1031 1032 /* Load the firmware if required */ 1033 ret = ds3000_firmware_ondemand(fe); 1034 if (ret != 0) { 1035 printk(KERN_ERR "%s: Unable initialise the firmware\n", 1036 __func__); 1037 return ret; 1038 } 1039 1040 state->dnxt.delivery = c->modulation; 1041 state->dnxt.frequency = c->frequency; 1042 state->dnxt.rolloff = 2; 1043 state->dnxt.fec = c->fec_inner; 1044 1045 ret = ds3000_set_inversion(state, p->inversion); 1046 if (ret != 0) 1047 return ret; 1048 1049 ret = ds3000_set_symbolrate(state, c->symbol_rate); 1050 if (ret != 0) 1051 return ret; 1052 1053 /* discard the 'current' tuning parameters and prepare to tune */ 1054 ds3000_clone_params(fe); 1055 1056 retune = 1; /* try 1 times */ 1057 dprintk("%s: retune = %d\n", __func__, retune); 1058 dprintk("%s: frequency = %d\n", __func__, state->dcur.frequency); 1059 dprintk("%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate); 1060 dprintk("%s: FEC = %d \n", __func__, 1061 state->dcur.fec); 1062 dprintk("%s: Inversion = %d\n", __func__, state->dcur.inversion); 1063 1064 do { 1065 /* Reset status register */ 1066 status = 0; 1067 /* Tune */ 1068 /* TS2020 init */ 1069 ds3000_tuner_writereg(state, 0x42, 0x73); 1070 ds3000_tuner_writereg(state, 0x05, 0x01); 1071 ds3000_tuner_writereg(state, 0x62, 0xf5); 1072 /* unknown */ 1073 ds3000_tuner_writereg(state, 0x07, 0x02); 1074 ds3000_tuner_writereg(state, 0x10, 0x00); 1075 ds3000_tuner_writereg(state, 0x60, 0x79); 1076 ds3000_tuner_writereg(state, 0x08, 0x01); 1077 ds3000_tuner_writereg(state, 0x00, 0x01); 1078 /* calculate and set freq divider */ 1079 if (state->dcur.frequency < 1146000) { 1080 ds3000_tuner_writereg(state, 0x10, 0x11); 1081 ndiv = ((state->dcur.frequency * (6 + 8) * 4) + 1082 (DS3000_XTAL_FREQ / 2)) / 1083 DS3000_XTAL_FREQ - 1024; 1084 } else { 1085 ds3000_tuner_writereg(state, 0x10, 0x01); 1086 ndiv = ((state->dcur.frequency * (6 + 8) * 2) + 1087 (DS3000_XTAL_FREQ / 2)) / 1088 DS3000_XTAL_FREQ - 1024; 1089 } 1090 1091 ds3000_tuner_writereg(state, 0x01, (ndiv & 0x0f00) >> 8); 1092 ds3000_tuner_writereg(state, 0x02, ndiv & 0x00ff); 1093 1094 /* set pll */ 1095 ds3000_tuner_writereg(state, 0x03, 0x06); 1096 ds3000_tuner_writereg(state, 0x51, 0x0f); 1097 ds3000_tuner_writereg(state, 0x51, 0x1f); 1098 ds3000_tuner_writereg(state, 0x50, 0x10); 1099 ds3000_tuner_writereg(state, 0x50, 0x00); 1100 msleep(5); 1101 1102 /* unknown */ 1103 ds3000_tuner_writereg(state, 0x51, 0x17); 1104 ds3000_tuner_writereg(state, 0x51, 0x1f); 1105 ds3000_tuner_writereg(state, 0x50, 0x08); 1106 ds3000_tuner_writereg(state, 0x50, 0x00); 1107 msleep(5); 1108 1109 value = ds3000_tuner_readreg(state, 0x3d); 1110 value &= 0x0f; 1111 if ((value > 4) && (value < 15)) { 1112 value -= 3; 1113 if (value < 4) 1114 value = 4; 1115 value = ((value << 3) | 0x01) & 0x79; 1116 } 1117 1118 ds3000_tuner_writereg(state, 0x60, value); 1119 ds3000_tuner_writereg(state, 0x51, 0x17); 1120 ds3000_tuner_writereg(state, 0x51, 0x1f); 1121 ds3000_tuner_writereg(state, 0x50, 0x08); 1122 ds3000_tuner_writereg(state, 0x50, 0x00); 1123 1124 /* set low-pass filter period */ 1125 ds3000_tuner_writereg(state, 0x04, 0x2e); 1126 ds3000_tuner_writereg(state, 0x51, 0x1b); 1127 ds3000_tuner_writereg(state, 0x51, 0x1f); 1128 ds3000_tuner_writereg(state, 0x50, 0x04); 1129 ds3000_tuner_writereg(state, 0x50, 0x00); 1130 msleep(5); 1131 1132 f3db = ((state->dcur.symbol_rate / 1000) << 2) / 5 + 2000; 1133 if ((state->dcur.symbol_rate / 1000) < 5000) 1134 f3db += 3000; 1135 if (f3db < 7000) 1136 f3db = 7000; 1137 if (f3db > 40000) 1138 f3db = 40000; 1139 1140 /* set low-pass filter baseband */ 1141 value = ds3000_tuner_readreg(state, 0x26); 1142 mlpf = 0x2e * 207 / ((value << 1) + 151); 1143 mlpf_max = mlpf * 135 / 100; 1144 mlpf_min = mlpf * 78 / 100; 1145 if (mlpf_max > 63) 1146 mlpf_max = 63; 1147 1148 /* rounded to the closest integer */ 1149 nlpf = ((mlpf * f3db * 1000) + (2766 * DS3000_XTAL_FREQ / 2)) 1150 / (2766 * DS3000_XTAL_FREQ); 1151 if (nlpf > 23) 1152 nlpf = 23; 1153 if (nlpf < 1) 1154 nlpf = 1; 1155 1156 /* rounded to the closest integer */ 1157 mlpf_new = ((DS3000_XTAL_FREQ * nlpf * 2766) + 1158 (1000 * f3db / 2)) / (1000 * f3db); 1159 1160 if (mlpf_new < mlpf_min) { 1161 nlpf++; 1162 mlpf_new = ((DS3000_XTAL_FREQ * nlpf * 2766) + 1163 (1000 * f3db / 2)) / (1000 * f3db); 1164 } 1165 1166 if (mlpf_new > mlpf_max) 1167 mlpf_new = mlpf_max; 1168 1169 ds3000_tuner_writereg(state, 0x04, mlpf_new); 1170 ds3000_tuner_writereg(state, 0x06, nlpf); 1171 ds3000_tuner_writereg(state, 0x51, 0x1b); 1172 ds3000_tuner_writereg(state, 0x51, 0x1f); 1173 ds3000_tuner_writereg(state, 0x50, 0x04); 1174 ds3000_tuner_writereg(state, 0x50, 0x00); 1175 msleep(5); 1176 1177 /* unknown */ 1178 ds3000_tuner_writereg(state, 0x51, 0x1e); 1179 ds3000_tuner_writereg(state, 0x51, 0x1f); 1180 ds3000_tuner_writereg(state, 0x50, 0x01); 1181 ds3000_tuner_writereg(state, 0x50, 0x00); 1182 msleep(60); 1183 1184 /* ds3000 global reset */ 1185 ds3000_writereg(state, 0x07, 0x80); 1186 ds3000_writereg(state, 0x07, 0x00); 1187 /* ds3000 build-in uC reset */ 1188 ds3000_writereg(state, 0xb2, 0x01); 1189 /* ds3000 software reset */ 1190 ds3000_writereg(state, 0x00, 0x01); 1191 1192 switch (c->delivery_system) { 1193 case SYS_DVBS: 1194 /* initialise the demod in DVB-S mode */ 1195 for (i = 0; i < sizeof(ds3000_dvbs_init_tab); i += 2) 1196 ds3000_writereg(state, 1197 ds3000_dvbs_init_tab[i], 1198 ds3000_dvbs_init_tab[i + 1]); 1199 value = ds3000_readreg(state, 0xfe); 1200 value &= 0xc0; 1201 value |= 0x1b; 1202 ds3000_writereg(state, 0xfe, value); 1203 break; 1204 case SYS_DVBS2: 1205 /* initialise the demod in DVB-S2 mode */ 1206 for (i = 0; i < sizeof(ds3000_dvbs2_init_tab); i += 2) 1207 ds3000_writereg(state, 1208 ds3000_dvbs2_init_tab[i], 1209 ds3000_dvbs2_init_tab[i + 1]); 1210 ds3000_writereg(state, 0xfe, 0x54); 1211 break; 1212 default: 1213 return 1; 1214 } 1215 1216 /* enable 27MHz clock output */ 1217 ds3000_writereg(state, 0x29, 0x80); 1218 /* enable ac coupling */ 1219 ds3000_writereg(state, 0x25, 0x8a); 1220 1221 /* enhance symbol rate performance */ 1222 if ((state->dcur.symbol_rate / 1000) <= 5000) { 1223 value = 29777 / (state->dcur.symbol_rate / 1000) + 1; 1224 if (value % 2 != 0) 1225 value++; 1226 ds3000_writereg(state, 0xc3, 0x0d); 1227 ds3000_writereg(state, 0xc8, value); 1228 ds3000_writereg(state, 0xc4, 0x10); 1229 ds3000_writereg(state, 0xc7, 0x0e); 1230 } else if ((state->dcur.symbol_rate / 1000) <= 10000) { 1231 value = 92166 / (state->dcur.symbol_rate / 1000) + 1; 1232 if (value % 2 != 0) 1233 value++; 1234 ds3000_writereg(state, 0xc3, 0x07); 1235 ds3000_writereg(state, 0xc8, value); 1236 ds3000_writereg(state, 0xc4, 0x09); 1237 ds3000_writereg(state, 0xc7, 0x12); 1238 } else if ((state->dcur.symbol_rate / 1000) <= 20000) { 1239 value = 64516 / (state->dcur.symbol_rate / 1000) + 1; 1240 ds3000_writereg(state, 0xc3, value); 1241 ds3000_writereg(state, 0xc8, 0x0e); 1242 ds3000_writereg(state, 0xc4, 0x07); 1243 ds3000_writereg(state, 0xc7, 0x18); 1244 } else { 1245 value = 129032 / (state->dcur.symbol_rate / 1000) + 1; 1246 ds3000_writereg(state, 0xc3, value); 1247 ds3000_writereg(state, 0xc8, 0x0a); 1248 ds3000_writereg(state, 0xc4, 0x05); 1249 ds3000_writereg(state, 0xc7, 0x24); 1250 } 1251 1252 /* normalized symbol rate rounded to the closest integer */ 1253 value = (((state->dcur.symbol_rate / 1000) << 16) + 1254 (DS3000_SAMPLE_RATE / 2)) / DS3000_SAMPLE_RATE; 1255 ds3000_writereg(state, 0x61, value & 0x00ff); 1256 ds3000_writereg(state, 0x62, (value & 0xff00) >> 8); 1257 1258 /* co-channel interference cancellation disabled */ 1259 ds3000_writereg(state, 0x56, 0x00); 1260 1261 /* equalizer disabled */ 1262 ds3000_writereg(state, 0x76, 0x00); 1263 1264 /*ds3000_writereg(state, 0x08, 0x03); 1265 ds3000_writereg(state, 0xfd, 0x22); 1266 ds3000_writereg(state, 0x08, 0x07); 1267 ds3000_writereg(state, 0xfd, 0x42); 1268 ds3000_writereg(state, 0x08, 0x07);*/ 1269 1270 /* ds3000 out of software reset */ 1271 ds3000_writereg(state, 0x00, 0x00); 1272 /* start ds3000 build-in uC */ 1273 ds3000_writereg(state, 0xb2, 0x00); 1274 1275 /* TODO: calculate and set carrier offset */ 1276 1277 /* wait before retrying */ 1278 for (i = 0; i < 30 ; i++) { 1279 if (ds3000_is_tuned(fe)) { 1280 dprintk("%s: Tuned\n", __func__); 1281 ds3000_dump_registers(fe); 1282 goto tuned; 1283 } 1284 msleep(1); 1285 } 1286 1287 dprintk("%s: Not tuned\n", __func__); 1288 ds3000_dump_registers(fe); 1289 1290 } while (--retune); 1291 1292tuned: 1293 return ret; 1294} 1295 1296static enum dvbfe_algo ds3000_get_algo(struct dvb_frontend *fe) 1297{ 1298 dprintk("%s()\n", __func__); 1299 return DVBFE_ALGO_SW; 1300} 1301 1302/* 1303 * Initialise or wake up device 1304 * 1305 * Power config will reset and load initial firmware if required 1306 */ 1307static int ds3000_initfe(struct dvb_frontend *fe) 1308{ 1309 dprintk("%s()\n", __func__); 1310 return 0; 1311} 1312 1313/* Put device to sleep */ 1314static int ds3000_sleep(struct dvb_frontend *fe) 1315{ 1316 dprintk("%s()\n", __func__); 1317 return 0; 1318} 1319 1320static struct dvb_frontend_ops ds3000_ops = { 1321 1322 .info = { 1323 .name = "Montage Technology DS3000/TS2020", 1324 .type = FE_QPSK, 1325 .frequency_min = 950000, 1326 .frequency_max = 2150000, 1327 .frequency_stepsize = 1011, /* kHz for QPSK frontends */ 1328 .frequency_tolerance = 5000, 1329 .symbol_rate_min = 1000000, 1330 .symbol_rate_max = 45000000, 1331 .caps = FE_CAN_INVERSION_AUTO | 1332 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | 1333 FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | 1334 FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | 1335 FE_CAN_2G_MODULATION | 1336 FE_CAN_QPSK | FE_CAN_RECOVER 1337 }, 1338 1339 .release = ds3000_release, 1340 1341 .init = ds3000_initfe, 1342 .sleep = ds3000_sleep, 1343 .read_status = ds3000_read_status, 1344 .read_ber = ds3000_read_ber, 1345 .read_signal_strength = ds3000_read_signal_strength, 1346 .read_snr = ds3000_read_snr, 1347 .read_ucblocks = ds3000_read_ucblocks, 1348 .set_tone = ds3000_set_tone, 1349 .diseqc_send_master_cmd = ds3000_send_diseqc_msg, 1350 .diseqc_send_burst = ds3000_diseqc_send_burst, 1351 .get_frontend_algo = ds3000_get_algo, 1352 1353 .set_property = ds3000_set_property, 1354 .get_property = ds3000_get_property, 1355 .set_frontend = ds3000_tune, 1356}; 1357 1358module_param(debug, int, 0644); 1359MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)"); 1360 1361MODULE_DESCRIPTION("DVB Frontend module for Montage Technology " 1362 "DS3000/TS2020 hardware"); 1363MODULE_AUTHOR("Konstantin Dimitrov"); 1364MODULE_LICENSE("GPL"); 1365