1 /* 2 * stv0367.c 3 * 4 * Driver for ST STV0367 DVB-T & DVB-C demodulator IC. 5 * 6 * Copyright (C) ST Microelectronics. 7 * Copyright (C) 2010,2011 NetUP Inc. 8 * Copyright (C) 2010,2011 Igor M. Liplianin <liplianin@netup.ru> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * 19 * GNU General Public License for more details. 20 */ 21 22 #include <linux/kernel.h> 23 #include <linux/module.h> 24 #include <linux/string.h> 25 #include <linux/slab.h> 26 #include <linux/i2c.h> 27 28 #include "dvb_math.h" 29 30 #include "stv0367.h" 31 #include "stv0367_defs.h" 32 #include "stv0367_regs.h" 33 #include "stv0367_priv.h" 34 35 /* Max transfer size done by I2C transfer functions */ 36 #define MAX_XFER_SIZE 64 37 38 static int stvdebug; 39 module_param_named(debug, stvdebug, int, 0644); 40 41 static int i2cdebug; 42 module_param_named(i2c_debug, i2cdebug, int, 0644); 43 44 #define dprintk(args...) \ 45 do { \ 46 if (stvdebug) \ 47 printk(KERN_DEBUG args); \ 48 } while (0) 49 /* DVB-C */ 50 51 enum active_demod_state { demod_none, demod_ter, demod_cab }; 52 53 struct stv0367cab_state { 54 enum stv0367_cab_signal_type state; 55 u32 mclk; 56 u32 adc_clk; 57 s32 search_range; 58 s32 derot_offset; 59 /* results */ 60 int locked; /* channel found */ 61 u32 freq_khz; /* found frequency (in kHz) */ 62 u32 symbol_rate; /* found symbol rate (in Bds) */ 63 enum fe_spectral_inversion spect_inv; /* Spectrum Inversion */ 64 u32 qamfec_status_reg; /* status reg to poll for FEC Lock */ 65 }; 66 67 struct stv0367ter_state { 68 /* DVB-T */ 69 enum stv0367_ter_signal_type state; 70 enum stv0367_ter_if_iq_mode if_iq_mode; 71 enum stv0367_ter_mode mode;/* mode 2K or 8K */ 72 enum fe_guard_interval guard; 73 enum stv0367_ter_hierarchy hierarchy; 74 u32 frequency; 75 enum fe_spectral_inversion sense; /* current search spectrum */ 76 u8 force; /* force mode/guard */ 77 u8 bw; /* channel width 6, 7 or 8 in MHz */ 78 u8 pBW; /* channel width used during previous lock */ 79 u32 pBER; 80 u32 pPER; 81 u32 ucblocks; 82 s8 echo_pos; /* echo position */ 83 u8 first_lock; 84 u8 unlock_counter; 85 u32 agc_val; 86 }; 87 88 struct stv0367_state { 89 struct dvb_frontend fe; 90 struct i2c_adapter *i2c; 91 /* config settings */ 92 const struct stv0367_config *config; 93 u8 chip_id; 94 /* DVB-C */ 95 struct stv0367cab_state *cab_state; 96 /* DVB-T */ 97 struct stv0367ter_state *ter_state; 98 /* flags for operation control */ 99 u8 use_i2c_gatectrl; 100 u8 deftabs; 101 u8 reinit_on_setfrontend; 102 u8 auto_if_khz; 103 enum active_demod_state activedemod; 104 }; 105 106 #define RF_LOOKUP_TABLE_SIZE 31 107 #define RF_LOOKUP_TABLE2_SIZE 16 108 /* RF Level (for RF AGC->AGC1) Lookup Table, depends on the board and tuner.*/ 109 static const s32 stv0367cab_RF_LookUp1[RF_LOOKUP_TABLE_SIZE][RF_LOOKUP_TABLE_SIZE] = { 110 {/*AGC1*/ 111 48, 50, 51, 53, 54, 56, 57, 58, 60, 61, 62, 63, 112 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 113 76, 77, 78, 80, 83, 85, 88, 114 }, {/*RF(dbm)*/ 115 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 116 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 46, 47, 117 49, 50, 52, 53, 54, 55, 56, 118 } 119 }; 120 /* RF Level (for IF AGC->AGC2) Lookup Table, depends on the board and tuner.*/ 121 static const s32 stv0367cab_RF_LookUp2[RF_LOOKUP_TABLE2_SIZE][RF_LOOKUP_TABLE2_SIZE] = { 122 {/*AGC2*/ 123 28, 29, 31, 32, 34, 35, 36, 37, 124 38, 39, 40, 41, 42, 43, 44, 45, 125 }, {/*RF(dbm)*/ 126 57, 58, 59, 60, 61, 62, 63, 64, 127 65, 66, 67, 68, 69, 70, 71, 72, 128 } 129 }; 130 131 static 132 int stv0367_writeregs(struct stv0367_state *state, u16 reg, u8 *data, int len) 133 { 134 u8 buf[MAX_XFER_SIZE]; 135 struct i2c_msg msg = { 136 .addr = state->config->demod_address, 137 .flags = 0, 138 .buf = buf, 139 .len = len + 2 140 }; 141 int ret; 142 143 if (2 + len > sizeof(buf)) { 144 printk(KERN_WARNING 145 "%s: i2c wr reg=%04x: len=%d is too big!\n", 146 KBUILD_MODNAME, reg, len); 147 return -EINVAL; 148 } 149 150 151 buf[0] = MSB(reg); 152 buf[1] = LSB(reg); 153 memcpy(buf + 2, data, len); 154 155 if (i2cdebug) 156 printk(KERN_DEBUG "%s: [%02x] %02x: %02x\n", __func__, 157 state->config->demod_address, reg, buf[2]); 158 159 ret = i2c_transfer(state->i2c, &msg, 1); 160 if (ret != 1) 161 printk(KERN_ERR "%s: i2c write error! ([%02x] %02x: %02x)\n", 162 __func__, state->config->demod_address, reg, buf[2]); 163 164 return (ret != 1) ? -EREMOTEIO : 0; 165 } 166 167 static int stv0367_writereg(struct stv0367_state *state, u16 reg, u8 data) 168 { 169 return stv0367_writeregs(state, reg, &data, 1); 170 } 171 172 static u8 stv0367_readreg(struct stv0367_state *state, u16 reg) 173 { 174 u8 b0[] = { 0, 0 }; 175 u8 b1[] = { 0 }; 176 struct i2c_msg msg[] = { 177 { 178 .addr = state->config->demod_address, 179 .flags = 0, 180 .buf = b0, 181 .len = 2 182 }, { 183 .addr = state->config->demod_address, 184 .flags = I2C_M_RD, 185 .buf = b1, 186 .len = 1 187 } 188 }; 189 int ret; 190 191 b0[0] = MSB(reg); 192 b0[1] = LSB(reg); 193 194 ret = i2c_transfer(state->i2c, msg, 2); 195 if (ret != 2) 196 printk(KERN_ERR "%s: i2c read error ([%02x] %02x: %02x)\n", 197 __func__, state->config->demod_address, reg, b1[0]); 198 199 if (i2cdebug) 200 printk(KERN_DEBUG "%s: [%02x] %02x: %02x\n", __func__, 201 state->config->demod_address, reg, b1[0]); 202 203 return b1[0]; 204 } 205 206 static void extract_mask_pos(u32 label, u8 *mask, u8 *pos) 207 { 208 u8 position = 0, i = 0; 209 210 (*mask) = label & 0xff; 211 212 while ((position == 0) && (i < 8)) { 213 position = ((*mask) >> i) & 0x01; 214 i++; 215 } 216 217 (*pos) = (i - 1); 218 } 219 220 static void stv0367_writebits(struct stv0367_state *state, u32 label, u8 val) 221 { 222 u8 reg, mask, pos; 223 224 reg = stv0367_readreg(state, (label >> 16) & 0xffff); 225 extract_mask_pos(label, &mask, &pos); 226 227 val = mask & (val << pos); 228 229 reg = (reg & (~mask)) | val; 230 stv0367_writereg(state, (label >> 16) & 0xffff, reg); 231 232 } 233 234 static void stv0367_setbits(u8 *reg, u32 label, u8 val) 235 { 236 u8 mask, pos; 237 238 extract_mask_pos(label, &mask, &pos); 239 240 val = mask & (val << pos); 241 242 (*reg) = ((*reg) & (~mask)) | val; 243 } 244 245 static u8 stv0367_readbits(struct stv0367_state *state, u32 label) 246 { 247 u8 val = 0xff; 248 u8 mask, pos; 249 250 extract_mask_pos(label, &mask, &pos); 251 252 val = stv0367_readreg(state, label >> 16); 253 val = (val & mask) >> pos; 254 255 return val; 256 } 257 258 #if 0 /* Currently, unused */ 259 static u8 stv0367_getbits(u8 reg, u32 label) 260 { 261 u8 mask, pos; 262 263 extract_mask_pos(label, &mask, &pos); 264 265 return (reg & mask) >> pos; 266 } 267 #endif 268 269 static void stv0367_write_table(struct stv0367_state *state, 270 const struct st_register *deftab) 271 { 272 int i = 0; 273 274 while (1) { 275 if (!deftab[i].addr) 276 break; 277 stv0367_writereg(state, deftab[i].addr, deftab[i].value); 278 i++; 279 } 280 } 281 282 static void stv0367_pll_setup(struct stv0367_state *state, 283 u32 icspeed, u32 xtal) 284 { 285 /* note on regs: R367TER_* and R367CAB_* defines each point to 286 * 0xf0d8, so just use R367TER_ for both cases 287 */ 288 289 switch (icspeed) { 290 case STV0367_ICSPEED_58000: 291 switch (xtal) { 292 default: 293 case 27000000: 294 dprintk("STV0367 SetCLKgen for 58MHz IC and 27Mhz crystal\n"); 295 /* PLLMDIV: 27, PLLNDIV: 232 */ 296 stv0367_writereg(state, R367TER_PLLMDIV, 0x1b); 297 stv0367_writereg(state, R367TER_PLLNDIV, 0xe8); 298 break; 299 } 300 break; 301 default: 302 case STV0367_ICSPEED_53125: 303 switch (xtal) { 304 /* set internal freq to 53.125MHz */ 305 case 16000000: 306 stv0367_writereg(state, R367TER_PLLMDIV, 0x2); 307 stv0367_writereg(state, R367TER_PLLNDIV, 0x1b); 308 break; 309 case 25000000: 310 stv0367_writereg(state, R367TER_PLLMDIV, 0xa); 311 stv0367_writereg(state, R367TER_PLLNDIV, 0x55); 312 break; 313 default: 314 case 27000000: 315 dprintk("FE_STV0367TER_SetCLKgen for 27Mhz\n"); 316 stv0367_writereg(state, R367TER_PLLMDIV, 0x1); 317 stv0367_writereg(state, R367TER_PLLNDIV, 0x8); 318 break; 319 case 30000000: 320 stv0367_writereg(state, R367TER_PLLMDIV, 0xc); 321 stv0367_writereg(state, R367TER_PLLNDIV, 0x55); 322 break; 323 } 324 } 325 326 stv0367_writereg(state, R367TER_PLLSETUP, 0x18); 327 } 328 329 static int stv0367_get_if_khz(struct stv0367_state *state, u32 *ifkhz) 330 { 331 if (state->auto_if_khz && state->fe.ops.tuner_ops.get_if_frequency) { 332 state->fe.ops.tuner_ops.get_if_frequency(&state->fe, ifkhz); 333 *ifkhz = *ifkhz / 1000; /* hz -> khz */ 334 } else 335 *ifkhz = state->config->if_khz; 336 337 return 0; 338 } 339 340 static int stv0367ter_gate_ctrl(struct dvb_frontend *fe, int enable) 341 { 342 struct stv0367_state *state = fe->demodulator_priv; 343 u8 tmp = stv0367_readreg(state, R367TER_I2CRPT); 344 345 dprintk("%s:\n", __func__); 346 347 if (enable) { 348 stv0367_setbits(&tmp, F367TER_STOP_ENABLE, 0); 349 stv0367_setbits(&tmp, F367TER_I2CT_ON, 1); 350 } else { 351 stv0367_setbits(&tmp, F367TER_STOP_ENABLE, 1); 352 stv0367_setbits(&tmp, F367TER_I2CT_ON, 0); 353 } 354 355 stv0367_writereg(state, R367TER_I2CRPT, tmp); 356 357 return 0; 358 } 359 360 static u32 stv0367_get_tuner_freq(struct dvb_frontend *fe) 361 { 362 struct dvb_frontend_ops *frontend_ops = &fe->ops; 363 struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; 364 u32 freq = 0; 365 int err = 0; 366 367 dprintk("%s:\n", __func__); 368 369 if (tuner_ops->get_frequency) { 370 err = tuner_ops->get_frequency(fe, &freq); 371 if (err < 0) { 372 printk(KERN_ERR "%s: Invalid parameter\n", __func__); 373 return err; 374 } 375 376 dprintk("%s: frequency=%d\n", __func__, freq); 377 378 } else 379 return -1; 380 381 return freq; 382 } 383 384 static u16 CellsCoeffs_8MHz_367cofdm[3][6][5] = { 385 { 386 {0x10EF, 0xE205, 0x10EF, 0xCE49, 0x6DA7}, /* CELL 1 COEFFS 27M*/ 387 {0x2151, 0xc557, 0x2151, 0xc705, 0x6f93}, /* CELL 2 COEFFS */ 388 {0x2503, 0xc000, 0x2503, 0xc375, 0x7194}, /* CELL 3 COEFFS */ 389 {0x20E9, 0xca94, 0x20e9, 0xc153, 0x7194}, /* CELL 4 COEFFS */ 390 {0x06EF, 0xF852, 0x06EF, 0xC057, 0x7207}, /* CELL 5 COEFFS */ 391 {0x0000, 0x0ECC, 0x0ECC, 0x0000, 0x3647} /* CELL 6 COEFFS */ 392 }, { 393 {0x10A0, 0xE2AF, 0x10A1, 0xCE76, 0x6D6D}, /* CELL 1 COEFFS 25M*/ 394 {0x20DC, 0xC676, 0x20D9, 0xC80A, 0x6F29}, 395 {0x2532, 0xC000, 0x251D, 0xC391, 0x706F}, 396 {0x1F7A, 0xCD2B, 0x2032, 0xC15E, 0x711F}, 397 {0x0698, 0xFA5E, 0x0568, 0xC059, 0x7193}, 398 {0x0000, 0x0918, 0x149C, 0x0000, 0x3642} /* CELL 6 COEFFS */ 399 }, { 400 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, /* 30M */ 401 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 402 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 403 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 404 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 405 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000} 406 } 407 }; 408 409 static u16 CellsCoeffs_7MHz_367cofdm[3][6][5] = { 410 { 411 {0x12CA, 0xDDAF, 0x12CA, 0xCCEB, 0x6FB1}, /* CELL 1 COEFFS 27M*/ 412 {0x2329, 0xC000, 0x2329, 0xC6B0, 0x725F}, /* CELL 2 COEFFS */ 413 {0x2394, 0xC000, 0x2394, 0xC2C7, 0x7410}, /* CELL 3 COEFFS */ 414 {0x251C, 0xC000, 0x251C, 0xC103, 0x74D9}, /* CELL 4 COEFFS */ 415 {0x0804, 0xF546, 0x0804, 0xC040, 0x7544}, /* CELL 5 COEFFS */ 416 {0x0000, 0x0CD9, 0x0CD9, 0x0000, 0x370A} /* CELL 6 COEFFS */ 417 }, { 418 {0x1285, 0xDE47, 0x1285, 0xCD17, 0x6F76}, /*25M*/ 419 {0x234C, 0xC000, 0x2348, 0xC6DA, 0x7206}, 420 {0x23B4, 0xC000, 0x23AC, 0xC2DB, 0x73B3}, 421 {0x253D, 0xC000, 0x25B6, 0xC10B, 0x747F}, 422 {0x0721, 0xF79C, 0x065F, 0xC041, 0x74EB}, 423 {0x0000, 0x08FA, 0x1162, 0x0000, 0x36FF} 424 }, { 425 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, /* 30M */ 426 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 427 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 428 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 429 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 430 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000} 431 } 432 }; 433 434 static u16 CellsCoeffs_6MHz_367cofdm[3][6][5] = { 435 { 436 {0x1699, 0xD5B8, 0x1699, 0xCBC3, 0x713B}, /* CELL 1 COEFFS 27M*/ 437 {0x2245, 0xC000, 0x2245, 0xC568, 0x74D5}, /* CELL 2 COEFFS */ 438 {0x227F, 0xC000, 0x227F, 0xC1FC, 0x76C6}, /* CELL 3 COEFFS */ 439 {0x235E, 0xC000, 0x235E, 0xC0A7, 0x778A}, /* CELL 4 COEFFS */ 440 {0x0ECB, 0xEA0B, 0x0ECB, 0xC027, 0x77DD}, /* CELL 5 COEFFS */ 441 {0x0000, 0x0B68, 0x0B68, 0x0000, 0xC89A}, /* CELL 6 COEFFS */ 442 }, { 443 {0x1655, 0xD64E, 0x1658, 0xCBEF, 0x70FE}, /*25M*/ 444 {0x225E, 0xC000, 0x2256, 0xC589, 0x7489}, 445 {0x2293, 0xC000, 0x2295, 0xC209, 0x767E}, 446 {0x2377, 0xC000, 0x23AA, 0xC0AB, 0x7746}, 447 {0x0DC7, 0xEBC8, 0x0D07, 0xC027, 0x7799}, 448 {0x0000, 0x0888, 0x0E9C, 0x0000, 0x3757} 449 450 }, { 451 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, /* 30M */ 452 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 453 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 454 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 455 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, 456 {0x0000, 0x0000, 0x0000, 0x0000, 0x0000} 457 } 458 }; 459 460 static u32 stv0367ter_get_mclk(struct stv0367_state *state, u32 ExtClk_Hz) 461 { 462 u32 mclk_Hz = 0; /* master clock frequency (Hz) */ 463 u32 m, n, p; 464 465 dprintk("%s:\n", __func__); 466 467 if (stv0367_readbits(state, F367TER_BYPASS_PLLXN) == 0) { 468 n = (u32)stv0367_readbits(state, F367TER_PLL_NDIV); 469 if (n == 0) 470 n = n + 1; 471 472 m = (u32)stv0367_readbits(state, F367TER_PLL_MDIV); 473 if (m == 0) 474 m = m + 1; 475 476 p = (u32)stv0367_readbits(state, F367TER_PLL_PDIV); 477 if (p > 5) 478 p = 5; 479 480 mclk_Hz = ((ExtClk_Hz / 2) * n) / (m * (1 << p)); 481 482 dprintk("N=%d M=%d P=%d mclk_Hz=%d ExtClk_Hz=%d\n", 483 n, m, p, mclk_Hz, ExtClk_Hz); 484 } else 485 mclk_Hz = ExtClk_Hz; 486 487 dprintk("%s: mclk_Hz=%d\n", __func__, mclk_Hz); 488 489 return mclk_Hz; 490 } 491 492 static int stv0367ter_filt_coeff_init(struct stv0367_state *state, 493 u16 CellsCoeffs[3][6][5], u32 DemodXtal) 494 { 495 int i, j, k, freq; 496 497 dprintk("%s:\n", __func__); 498 499 freq = stv0367ter_get_mclk(state, DemodXtal); 500 501 if (freq == 53125000) 502 k = 1; /* equivalent to Xtal 25M on 362*/ 503 else if (freq == 54000000) 504 k = 0; /* equivalent to Xtal 27M on 362*/ 505 else if (freq == 52500000) 506 k = 2; /* equivalent to Xtal 30M on 362*/ 507 else 508 return 0; 509 510 for (i = 1; i <= 6; i++) { 511 stv0367_writebits(state, F367TER_IIR_CELL_NB, i - 1); 512 513 for (j = 1; j <= 5; j++) { 514 stv0367_writereg(state, 515 (R367TER_IIRCX_COEFF1_MSB + 2 * (j - 1)), 516 MSB(CellsCoeffs[k][i-1][j-1])); 517 stv0367_writereg(state, 518 (R367TER_IIRCX_COEFF1_LSB + 2 * (j - 1)), 519 LSB(CellsCoeffs[k][i-1][j-1])); 520 } 521 } 522 523 return 1; 524 525 } 526 527 static void stv0367ter_agc_iir_lock_detect_set(struct stv0367_state *state) 528 { 529 dprintk("%s:\n", __func__); 530 531 stv0367_writebits(state, F367TER_LOCK_DETECT_LSB, 0x00); 532 533 /* Lock detect 1 */ 534 stv0367_writebits(state, F367TER_LOCK_DETECT_CHOICE, 0x00); 535 stv0367_writebits(state, F367TER_LOCK_DETECT_MSB, 0x06); 536 stv0367_writebits(state, F367TER_AUT_AGC_TARGET_LSB, 0x04); 537 538 /* Lock detect 2 */ 539 stv0367_writebits(state, F367TER_LOCK_DETECT_CHOICE, 0x01); 540 stv0367_writebits(state, F367TER_LOCK_DETECT_MSB, 0x06); 541 stv0367_writebits(state, F367TER_AUT_AGC_TARGET_LSB, 0x04); 542 543 /* Lock detect 3 */ 544 stv0367_writebits(state, F367TER_LOCK_DETECT_CHOICE, 0x02); 545 stv0367_writebits(state, F367TER_LOCK_DETECT_MSB, 0x01); 546 stv0367_writebits(state, F367TER_AUT_AGC_TARGET_LSB, 0x00); 547 548 /* Lock detect 4 */ 549 stv0367_writebits(state, F367TER_LOCK_DETECT_CHOICE, 0x03); 550 stv0367_writebits(state, F367TER_LOCK_DETECT_MSB, 0x01); 551 stv0367_writebits(state, F367TER_AUT_AGC_TARGET_LSB, 0x00); 552 553 } 554 555 static int stv0367_iir_filt_init(struct stv0367_state *state, u8 Bandwidth, 556 u32 DemodXtalValue) 557 { 558 dprintk("%s:\n", __func__); 559 560 stv0367_writebits(state, F367TER_NRST_IIR, 0); 561 562 switch (Bandwidth) { 563 case 6: 564 if (!stv0367ter_filt_coeff_init(state, 565 CellsCoeffs_6MHz_367cofdm, 566 DemodXtalValue)) 567 return 0; 568 break; 569 case 7: 570 if (!stv0367ter_filt_coeff_init(state, 571 CellsCoeffs_7MHz_367cofdm, 572 DemodXtalValue)) 573 return 0; 574 break; 575 case 8: 576 if (!stv0367ter_filt_coeff_init(state, 577 CellsCoeffs_8MHz_367cofdm, 578 DemodXtalValue)) 579 return 0; 580 break; 581 default: 582 return 0; 583 } 584 585 stv0367_writebits(state, F367TER_NRST_IIR, 1); 586 587 return 1; 588 } 589 590 static void stv0367ter_agc_iir_rst(struct stv0367_state *state) 591 { 592 593 u8 com_n; 594 595 dprintk("%s:\n", __func__); 596 597 com_n = stv0367_readbits(state, F367TER_COM_N); 598 599 stv0367_writebits(state, F367TER_COM_N, 0x07); 600 601 stv0367_writebits(state, F367TER_COM_SOFT_RSTN, 0x00); 602 stv0367_writebits(state, F367TER_COM_AGC_ON, 0x00); 603 604 stv0367_writebits(state, F367TER_COM_SOFT_RSTN, 0x01); 605 stv0367_writebits(state, F367TER_COM_AGC_ON, 0x01); 606 607 stv0367_writebits(state, F367TER_COM_N, com_n); 608 609 } 610 611 static int stv0367ter_duration(s32 mode, int tempo1, int tempo2, int tempo3) 612 { 613 int local_tempo = 0; 614 switch (mode) { 615 case 0: 616 local_tempo = tempo1; 617 break; 618 case 1: 619 local_tempo = tempo2; 620 break ; 621 622 case 2: 623 local_tempo = tempo3; 624 break; 625 626 default: 627 break; 628 } 629 /* msleep(local_tempo); */ 630 return local_tempo; 631 } 632 633 static enum 634 stv0367_ter_signal_type stv0367ter_check_syr(struct stv0367_state *state) 635 { 636 int wd = 100; 637 unsigned short int SYR_var; 638 s32 SYRStatus; 639 640 dprintk("%s:\n", __func__); 641 642 SYR_var = stv0367_readbits(state, F367TER_SYR_LOCK); 643 644 while ((!SYR_var) && (wd > 0)) { 645 usleep_range(2000, 3000); 646 wd -= 2; 647 SYR_var = stv0367_readbits(state, F367TER_SYR_LOCK); 648 } 649 650 if (!SYR_var) 651 SYRStatus = FE_TER_NOSYMBOL; 652 else 653 SYRStatus = FE_TER_SYMBOLOK; 654 655 dprintk("stv0367ter_check_syr SYRStatus %s\n", 656 SYR_var == 0 ? "No Symbol" : "OK"); 657 658 return SYRStatus; 659 } 660 661 static enum 662 stv0367_ter_signal_type stv0367ter_check_cpamp(struct stv0367_state *state, 663 s32 FFTmode) 664 { 665 666 s32 CPAMPvalue = 0, CPAMPStatus, CPAMPMin; 667 int wd = 0; 668 669 dprintk("%s:\n", __func__); 670 671 switch (FFTmode) { 672 case 0: /*2k mode*/ 673 CPAMPMin = 20; 674 wd = 10; 675 break; 676 case 1: /*8k mode*/ 677 CPAMPMin = 80; 678 wd = 55; 679 break; 680 case 2: /*4k mode*/ 681 CPAMPMin = 40; 682 wd = 30; 683 break; 684 default: 685 CPAMPMin = 0xffff; /*drives to NOCPAMP */ 686 break; 687 } 688 689 dprintk("%s: CPAMPMin=%d wd=%d\n", __func__, CPAMPMin, wd); 690 691 CPAMPvalue = stv0367_readbits(state, F367TER_PPM_CPAMP_DIRECT); 692 while ((CPAMPvalue < CPAMPMin) && (wd > 0)) { 693 usleep_range(1000, 2000); 694 wd -= 1; 695 CPAMPvalue = stv0367_readbits(state, F367TER_PPM_CPAMP_DIRECT); 696 /*dprintk("CPAMPvalue= %d at wd=%d\n",CPAMPvalue,wd); */ 697 } 698 dprintk("******last CPAMPvalue= %d at wd=%d\n", CPAMPvalue, wd); 699 if (CPAMPvalue < CPAMPMin) { 700 CPAMPStatus = FE_TER_NOCPAMP; 701 dprintk("%s: CPAMP failed\n", __func__); 702 } else { 703 dprintk("%s: CPAMP OK !\n", __func__); 704 CPAMPStatus = FE_TER_CPAMPOK; 705 } 706 707 return CPAMPStatus; 708 } 709 710 static enum stv0367_ter_signal_type 711 stv0367ter_lock_algo(struct stv0367_state *state) 712 { 713 enum stv0367_ter_signal_type ret_flag; 714 short int wd, tempo; 715 u8 try, u_var1 = 0, u_var2 = 0, u_var3 = 0, u_var4 = 0, mode, guard; 716 u8 tmp, tmp2; 717 718 dprintk("%s:\n", __func__); 719 720 if (state == NULL) 721 return FE_TER_SWNOK; 722 723 try = 0; 724 do { 725 ret_flag = FE_TER_LOCKOK; 726 727 stv0367_writebits(state, F367TER_CORE_ACTIVE, 0); 728 729 if (state->config->if_iq_mode != 0) 730 stv0367_writebits(state, F367TER_COM_N, 0x07); 731 732 stv0367_writebits(state, F367TER_GUARD, 3);/* suggest 2k 1/4 */ 733 stv0367_writebits(state, F367TER_MODE, 0); 734 stv0367_writebits(state, F367TER_SYR_TR_DIS, 0); 735 usleep_range(5000, 10000); 736 737 stv0367_writebits(state, F367TER_CORE_ACTIVE, 1); 738 739 740 if (stv0367ter_check_syr(state) == FE_TER_NOSYMBOL) 741 return FE_TER_NOSYMBOL; 742 else { /* 743 if chip locked on wrong mode first try, 744 it must lock correctly second try */ 745 mode = stv0367_readbits(state, F367TER_SYR_MODE); 746 if (stv0367ter_check_cpamp(state, mode) == 747 FE_TER_NOCPAMP) { 748 if (try == 0) 749 ret_flag = FE_TER_NOCPAMP; 750 751 } 752 } 753 754 try++; 755 } while ((try < 10) && (ret_flag != FE_TER_LOCKOK)); 756 757 tmp = stv0367_readreg(state, R367TER_SYR_STAT); 758 tmp2 = stv0367_readreg(state, R367TER_STATUS); 759 dprintk("state=%p\n", state); 760 dprintk("LOCK OK! mode=%d SYR_STAT=0x%x R367TER_STATUS=0x%x\n", 761 mode, tmp, tmp2); 762 763 tmp = stv0367_readreg(state, R367TER_PRVIT); 764 tmp2 = stv0367_readreg(state, R367TER_I2CRPT); 765 dprintk("PRVIT=0x%x I2CRPT=0x%x\n", tmp, tmp2); 766 767 tmp = stv0367_readreg(state, R367TER_GAIN_SRC1); 768 dprintk("GAIN_SRC1=0x%x\n", tmp); 769 770 if ((mode != 0) && (mode != 1) && (mode != 2)) 771 return FE_TER_SWNOK; 772 773 /*guard=stv0367_readbits(state,F367TER_SYR_GUARD); */ 774 775 /*suppress EPQ auto for SYR_GARD 1/16 or 1/32 776 and set channel predictor in automatic */ 777 #if 0 778 switch (guard) { 779 780 case 0: 781 case 1: 782 stv0367_writebits(state, F367TER_AUTO_LE_EN, 0); 783 stv0367_writereg(state, R367TER_CHC_CTL, 0x01); 784 break; 785 case 2: 786 case 3: 787 stv0367_writebits(state, F367TER_AUTO_LE_EN, 1); 788 stv0367_writereg(state, R367TER_CHC_CTL, 0x11); 789 break; 790 791 default: 792 return FE_TER_SWNOK; 793 } 794 #endif 795 796 /*reset fec an reedsolo FOR 367 only*/ 797 stv0367_writebits(state, F367TER_RST_SFEC, 1); 798 stv0367_writebits(state, F367TER_RST_REEDSOLO, 1); 799 usleep_range(1000, 2000); 800 stv0367_writebits(state, F367TER_RST_SFEC, 0); 801 stv0367_writebits(state, F367TER_RST_REEDSOLO, 0); 802 803 u_var1 = stv0367_readbits(state, F367TER_LK); 804 u_var2 = stv0367_readbits(state, F367TER_PRF); 805 u_var3 = stv0367_readbits(state, F367TER_TPS_LOCK); 806 /* u_var4=stv0367_readbits(state,F367TER_TSFIFO_LINEOK); */ 807 808 wd = stv0367ter_duration(mode, 125, 500, 250); 809 tempo = stv0367ter_duration(mode, 4, 16, 8); 810 811 /*while ( ((!u_var1)||(!u_var2)||(!u_var3)||(!u_var4)) && (wd>=0)) */ 812 while (((!u_var1) || (!u_var2) || (!u_var3)) && (wd >= 0)) { 813 usleep_range(1000 * tempo, 1000 * (tempo + 1)); 814 wd -= tempo; 815 u_var1 = stv0367_readbits(state, F367TER_LK); 816 u_var2 = stv0367_readbits(state, F367TER_PRF); 817 u_var3 = stv0367_readbits(state, F367TER_TPS_LOCK); 818 /*u_var4=stv0367_readbits(state, F367TER_TSFIFO_LINEOK); */ 819 } 820 821 if (!u_var1) 822 return FE_TER_NOLOCK; 823 824 825 if (!u_var2) 826 return FE_TER_NOPRFOUND; 827 828 if (!u_var3) 829 return FE_TER_NOTPS; 830 831 guard = stv0367_readbits(state, F367TER_SYR_GUARD); 832 stv0367_writereg(state, R367TER_CHC_CTL, 0x11); 833 switch (guard) { 834 case 0: 835 case 1: 836 stv0367_writebits(state, F367TER_AUTO_LE_EN, 0); 837 /*stv0367_writereg(state,R367TER_CHC_CTL, 0x1);*/ 838 stv0367_writebits(state, F367TER_SYR_FILTER, 0); 839 break; 840 case 2: 841 case 3: 842 stv0367_writebits(state, F367TER_AUTO_LE_EN, 1); 843 /*stv0367_writereg(state,R367TER_CHC_CTL, 0x11);*/ 844 stv0367_writebits(state, F367TER_SYR_FILTER, 1); 845 break; 846 847 default: 848 return FE_TER_SWNOK; 849 } 850 851 /* apply Sfec workaround if 8K 64QAM CR!=1/2*/ 852 if ((stv0367_readbits(state, F367TER_TPS_CONST) == 2) && 853 (mode == 1) && 854 (stv0367_readbits(state, F367TER_TPS_HPCODE) != 0)) { 855 stv0367_writereg(state, R367TER_SFDLYSETH, 0xc0); 856 stv0367_writereg(state, R367TER_SFDLYSETM, 0x60); 857 stv0367_writereg(state, R367TER_SFDLYSETL, 0x0); 858 } else 859 stv0367_writereg(state, R367TER_SFDLYSETH, 0x0); 860 861 wd = stv0367ter_duration(mode, 125, 500, 250); 862 u_var4 = stv0367_readbits(state, F367TER_TSFIFO_LINEOK); 863 864 while ((!u_var4) && (wd >= 0)) { 865 usleep_range(1000 * tempo, 1000 * (tempo + 1)); 866 wd -= tempo; 867 u_var4 = stv0367_readbits(state, F367TER_TSFIFO_LINEOK); 868 } 869 870 if (!u_var4) 871 return FE_TER_NOLOCK; 872 873 /* for 367 leave COM_N at 0x7 for IQ_mode*/ 874 /*if(ter_state->if_iq_mode!=FE_TER_NORMAL_IF_TUNER) { 875 tempo=0; 876 while ((stv0367_readbits(state,F367TER_COM_USEGAINTRK)!=1) && 877 (stv0367_readbits(state,F367TER_COM_AGCLOCK)!=1)&&(tempo<100)) { 878 ChipWaitOrAbort(state,1); 879 tempo+=1; 880 } 881 882 stv0367_writebits(state,F367TER_COM_N,0x17); 883 } */ 884 885 stv0367_writebits(state, F367TER_SYR_TR_DIS, 1); 886 887 dprintk("FE_TER_LOCKOK !!!\n"); 888 889 return FE_TER_LOCKOK; 890 891 } 892 893 static void stv0367ter_set_ts_mode(struct stv0367_state *state, 894 enum stv0367_ts_mode PathTS) 895 { 896 897 dprintk("%s:\n", __func__); 898 899 if (state == NULL) 900 return; 901 902 stv0367_writebits(state, F367TER_TS_DIS, 0); 903 switch (PathTS) { 904 default: 905 /*for removing warning :default we can assume in parallel mode*/ 906 case STV0367_PARALLEL_PUNCT_CLOCK: 907 stv0367_writebits(state, F367TER_TSFIFO_SERIAL, 0); 908 stv0367_writebits(state, F367TER_TSFIFO_DVBCI, 0); 909 break; 910 case STV0367_SERIAL_PUNCT_CLOCK: 911 stv0367_writebits(state, F367TER_TSFIFO_SERIAL, 1); 912 stv0367_writebits(state, F367TER_TSFIFO_DVBCI, 1); 913 break; 914 } 915 } 916 917 static void stv0367ter_set_clk_pol(struct stv0367_state *state, 918 enum stv0367_clk_pol clock) 919 { 920 921 dprintk("%s:\n", __func__); 922 923 if (state == NULL) 924 return; 925 926 switch (clock) { 927 case STV0367_RISINGEDGE_CLOCK: 928 stv0367_writebits(state, F367TER_TS_BYTE_CLK_INV, 1); 929 break; 930 case STV0367_FALLINGEDGE_CLOCK: 931 stv0367_writebits(state, F367TER_TS_BYTE_CLK_INV, 0); 932 break; 933 /*case FE_TER_CLOCK_POLARITY_DEFAULT:*/ 934 default: 935 stv0367_writebits(state, F367TER_TS_BYTE_CLK_INV, 0); 936 break; 937 } 938 } 939 940 #if 0 941 static void stv0367ter_core_sw(struct stv0367_state *state) 942 { 943 944 dprintk("%s:\n", __func__); 945 946 stv0367_writebits(state, F367TER_CORE_ACTIVE, 0); 947 stv0367_writebits(state, F367TER_CORE_ACTIVE, 1); 948 msleep(350); 949 } 950 #endif 951 static int stv0367ter_standby(struct dvb_frontend *fe, u8 standby_on) 952 { 953 struct stv0367_state *state = fe->demodulator_priv; 954 955 dprintk("%s:\n", __func__); 956 957 if (standby_on) { 958 stv0367_writebits(state, F367TER_STDBY, 1); 959 stv0367_writebits(state, F367TER_STDBY_FEC, 1); 960 stv0367_writebits(state, F367TER_STDBY_CORE, 1); 961 } else { 962 stv0367_writebits(state, F367TER_STDBY, 0); 963 stv0367_writebits(state, F367TER_STDBY_FEC, 0); 964 stv0367_writebits(state, F367TER_STDBY_CORE, 0); 965 } 966 967 return 0; 968 } 969 970 static int stv0367ter_sleep(struct dvb_frontend *fe) 971 { 972 return stv0367ter_standby(fe, 1); 973 } 974 975 static int stv0367ter_init(struct dvb_frontend *fe) 976 { 977 struct stv0367_state *state = fe->demodulator_priv; 978 struct stv0367ter_state *ter_state = state->ter_state; 979 980 dprintk("%s:\n", __func__); 981 982 ter_state->pBER = 0; 983 984 stv0367_write_table(state, 985 stv0367_deftabs[state->deftabs][STV0367_TAB_TER]); 986 987 stv0367_pll_setup(state, STV0367_ICSPEED_53125, state->config->xtal); 988 989 stv0367_writereg(state, R367TER_I2CRPT, 0xa0); 990 stv0367_writereg(state, R367TER_ANACTRL, 0x00); 991 992 /*Set TS1 and TS2 to serial or parallel mode */ 993 stv0367ter_set_ts_mode(state, state->config->ts_mode); 994 stv0367ter_set_clk_pol(state, state->config->clk_pol); 995 996 state->chip_id = stv0367_readreg(state, R367TER_ID); 997 ter_state->first_lock = 0; 998 ter_state->unlock_counter = 2; 999 1000 return 0; 1001 } 1002 1003 static int stv0367ter_algo(struct dvb_frontend *fe) 1004 { 1005 struct dtv_frontend_properties *p = &fe->dtv_property_cache; 1006 struct stv0367_state *state = fe->demodulator_priv; 1007 struct stv0367ter_state *ter_state = state->ter_state; 1008 int offset = 0, tempo = 0; 1009 u8 u_var; 1010 u8 /*constell,*/ counter; 1011 s8 step; 1012 s32 timing_offset = 0; 1013 u32 trl_nomrate = 0, InternalFreq = 0, temp = 0, ifkhz = 0; 1014 1015 dprintk("%s:\n", __func__); 1016 1017 stv0367_get_if_khz(state, &ifkhz); 1018 1019 ter_state->frequency = p->frequency; 1020 ter_state->force = FE_TER_FORCENONE 1021 + stv0367_readbits(state, F367TER_FORCE) * 2; 1022 ter_state->if_iq_mode = state->config->if_iq_mode; 1023 switch (state->config->if_iq_mode) { 1024 case FE_TER_NORMAL_IF_TUNER: /* Normal IF mode */ 1025 dprintk("ALGO: FE_TER_NORMAL_IF_TUNER selected\n"); 1026 stv0367_writebits(state, F367TER_TUNER_BB, 0); 1027 stv0367_writebits(state, F367TER_LONGPATH_IF, 0); 1028 stv0367_writebits(state, F367TER_DEMUX_SWAP, 0); 1029 break; 1030 case FE_TER_LONGPATH_IF_TUNER: /* Long IF mode */ 1031 dprintk("ALGO: FE_TER_LONGPATH_IF_TUNER selected\n"); 1032 stv0367_writebits(state, F367TER_TUNER_BB, 0); 1033 stv0367_writebits(state, F367TER_LONGPATH_IF, 1); 1034 stv0367_writebits(state, F367TER_DEMUX_SWAP, 1); 1035 break; 1036 case FE_TER_IQ_TUNER: /* IQ mode */ 1037 dprintk("ALGO: FE_TER_IQ_TUNER selected\n"); 1038 stv0367_writebits(state, F367TER_TUNER_BB, 1); 1039 stv0367_writebits(state, F367TER_PPM_INVSEL, 0); 1040 break; 1041 default: 1042 printk(KERN_ERR "ALGO: wrong TUNER type selected\n"); 1043 return -EINVAL; 1044 } 1045 1046 usleep_range(5000, 7000); 1047 1048 switch (p->inversion) { 1049 case INVERSION_AUTO: 1050 default: 1051 dprintk("%s: inversion AUTO\n", __func__); 1052 if (ter_state->if_iq_mode == FE_TER_IQ_TUNER) 1053 stv0367_writebits(state, F367TER_IQ_INVERT, 1054 ter_state->sense); 1055 else 1056 stv0367_writebits(state, F367TER_INV_SPECTR, 1057 ter_state->sense); 1058 1059 break; 1060 case INVERSION_ON: 1061 case INVERSION_OFF: 1062 if (ter_state->if_iq_mode == FE_TER_IQ_TUNER) 1063 stv0367_writebits(state, F367TER_IQ_INVERT, 1064 p->inversion); 1065 else 1066 stv0367_writebits(state, F367TER_INV_SPECTR, 1067 p->inversion); 1068 1069 break; 1070 } 1071 1072 if ((ter_state->if_iq_mode != FE_TER_NORMAL_IF_TUNER) && 1073 (ter_state->pBW != ter_state->bw)) { 1074 stv0367ter_agc_iir_lock_detect_set(state); 1075 1076 /*set fine agc target to 180 for LPIF or IQ mode*/ 1077 /* set Q_AGCTarget */ 1078 stv0367_writebits(state, F367TER_SEL_IQNTAR, 1); 1079 stv0367_writebits(state, F367TER_AUT_AGC_TARGET_MSB, 0xB); 1080 /*stv0367_writebits(state,AUT_AGC_TARGET_LSB,0x04); */ 1081 1082 /* set Q_AGCTarget */ 1083 stv0367_writebits(state, F367TER_SEL_IQNTAR, 0); 1084 stv0367_writebits(state, F367TER_AUT_AGC_TARGET_MSB, 0xB); 1085 /*stv0367_writebits(state,AUT_AGC_TARGET_LSB,0x04); */ 1086 1087 if (!stv0367_iir_filt_init(state, ter_state->bw, 1088 state->config->xtal)) 1089 return -EINVAL; 1090 /*set IIR filter once for 6,7 or 8MHz BW*/ 1091 ter_state->pBW = ter_state->bw; 1092 1093 stv0367ter_agc_iir_rst(state); 1094 } 1095 1096 if (ter_state->hierarchy == FE_TER_HIER_LOW_PRIO) 1097 stv0367_writebits(state, F367TER_BDI_LPSEL, 0x01); 1098 else 1099 stv0367_writebits(state, F367TER_BDI_LPSEL, 0x00); 1100 1101 InternalFreq = stv0367ter_get_mclk(state, state->config->xtal) / 1000; 1102 temp = (int) 1103 ((((ter_state->bw * 64 * (1 << 15) * 100) 1104 / (InternalFreq)) * 10) / 7); 1105 1106 stv0367_writebits(state, F367TER_TRL_NOMRATE_LSB, temp % 2); 1107 temp = temp / 2; 1108 stv0367_writebits(state, F367TER_TRL_NOMRATE_HI, temp / 256); 1109 stv0367_writebits(state, F367TER_TRL_NOMRATE_LO, temp % 256); 1110 1111 temp = stv0367_readbits(state, F367TER_TRL_NOMRATE_HI) * 512 + 1112 stv0367_readbits(state, F367TER_TRL_NOMRATE_LO) * 2 + 1113 stv0367_readbits(state, F367TER_TRL_NOMRATE_LSB); 1114 temp = (int)(((1 << 17) * ter_state->bw * 1000) / (7 * (InternalFreq))); 1115 stv0367_writebits(state, F367TER_GAIN_SRC_HI, temp / 256); 1116 stv0367_writebits(state, F367TER_GAIN_SRC_LO, temp % 256); 1117 temp = stv0367_readbits(state, F367TER_GAIN_SRC_HI) * 256 + 1118 stv0367_readbits(state, F367TER_GAIN_SRC_LO); 1119 1120 temp = (int) 1121 ((InternalFreq - ifkhz) * (1 << 16) / (InternalFreq)); 1122 1123 dprintk("DEROT temp=0x%x\n", temp); 1124 stv0367_writebits(state, F367TER_INC_DEROT_HI, temp / 256); 1125 stv0367_writebits(state, F367TER_INC_DEROT_LO, temp % 256); 1126 1127 ter_state->echo_pos = 0; 1128 ter_state->ucblocks = 0; /* liplianin */ 1129 ter_state->pBER = 0; /* liplianin */ 1130 stv0367_writebits(state, F367TER_LONG_ECHO, ter_state->echo_pos); 1131 1132 if (stv0367ter_lock_algo(state) != FE_TER_LOCKOK) 1133 return 0; 1134 1135 ter_state->state = FE_TER_LOCKOK; 1136 1137 ter_state->mode = stv0367_readbits(state, F367TER_SYR_MODE); 1138 ter_state->guard = stv0367_readbits(state, F367TER_SYR_GUARD); 1139 1140 ter_state->first_lock = 1; /* we know sense now :) */ 1141 1142 ter_state->agc_val = 1143 (stv0367_readbits(state, F367TER_AGC1_VAL_LO) << 16) + 1144 (stv0367_readbits(state, F367TER_AGC1_VAL_HI) << 24) + 1145 stv0367_readbits(state, F367TER_AGC2_VAL_LO) + 1146 (stv0367_readbits(state, F367TER_AGC2_VAL_HI) << 8); 1147 1148 /* Carrier offset calculation */ 1149 stv0367_writebits(state, F367TER_FREEZE, 1); 1150 offset = (stv0367_readbits(state, F367TER_CRL_FOFFSET_VHI) << 16) ; 1151 offset += (stv0367_readbits(state, F367TER_CRL_FOFFSET_HI) << 8); 1152 offset += (stv0367_readbits(state, F367TER_CRL_FOFFSET_LO)); 1153 stv0367_writebits(state, F367TER_FREEZE, 0); 1154 if (offset > 8388607) 1155 offset -= 16777216; 1156 1157 offset = offset * 2 / 16384; 1158 1159 if (ter_state->mode == FE_TER_MODE_2K) 1160 offset = (offset * 4464) / 1000;/*** 1 FFT BIN=4.464khz***/ 1161 else if (ter_state->mode == FE_TER_MODE_4K) 1162 offset = (offset * 223) / 100;/*** 1 FFT BIN=2.23khz***/ 1163 else if (ter_state->mode == FE_TER_MODE_8K) 1164 offset = (offset * 111) / 100;/*** 1 FFT BIN=1.1khz***/ 1165 1166 if (stv0367_readbits(state, F367TER_PPM_INVSEL) == 1) { 1167 if ((stv0367_readbits(state, F367TER_INV_SPECTR) == 1168 (stv0367_readbits(state, 1169 F367TER_STATUS_INV_SPECRUM) == 1))) 1170 offset = offset * -1; 1171 } 1172 1173 if (ter_state->bw == 6) 1174 offset = (offset * 6) / 8; 1175 else if (ter_state->bw == 7) 1176 offset = (offset * 7) / 8; 1177 1178 ter_state->frequency += offset; 1179 1180 tempo = 10; /* exit even if timing_offset stays null */ 1181 while ((timing_offset == 0) && (tempo > 0)) { 1182 usleep_range(10000, 20000); /*was 20ms */ 1183 /* fine tuning of timing offset if required */ 1184 timing_offset = stv0367_readbits(state, F367TER_TRL_TOFFSET_LO) 1185 + 256 * stv0367_readbits(state, 1186 F367TER_TRL_TOFFSET_HI); 1187 if (timing_offset >= 32768) 1188 timing_offset -= 65536; 1189 trl_nomrate = (512 * stv0367_readbits(state, 1190 F367TER_TRL_NOMRATE_HI) 1191 + stv0367_readbits(state, F367TER_TRL_NOMRATE_LO) * 2 1192 + stv0367_readbits(state, F367TER_TRL_NOMRATE_LSB)); 1193 1194 timing_offset = ((signed)(1000000 / trl_nomrate) * 1195 timing_offset) / 2048; 1196 tempo--; 1197 } 1198 1199 if (timing_offset <= 0) { 1200 timing_offset = (timing_offset - 11) / 22; 1201 step = -1; 1202 } else { 1203 timing_offset = (timing_offset + 11) / 22; 1204 step = 1; 1205 } 1206 1207 for (counter = 0; counter < abs(timing_offset); counter++) { 1208 trl_nomrate += step; 1209 stv0367_writebits(state, F367TER_TRL_NOMRATE_LSB, 1210 trl_nomrate % 2); 1211 stv0367_writebits(state, F367TER_TRL_NOMRATE_LO, 1212 trl_nomrate / 2); 1213 usleep_range(1000, 2000); 1214 } 1215 1216 usleep_range(5000, 6000); 1217 /* unlocks could happen in case of trl centring big step, 1218 then a core off/on restarts demod */ 1219 u_var = stv0367_readbits(state, F367TER_LK); 1220 1221 if (!u_var) { 1222 stv0367_writebits(state, F367TER_CORE_ACTIVE, 0); 1223 msleep(20); 1224 stv0367_writebits(state, F367TER_CORE_ACTIVE, 1); 1225 } 1226 1227 return 0; 1228 } 1229 1230 static int stv0367ter_set_frontend(struct dvb_frontend *fe) 1231 { 1232 struct dtv_frontend_properties *p = &fe->dtv_property_cache; 1233 struct stv0367_state *state = fe->demodulator_priv; 1234 struct stv0367ter_state *ter_state = state->ter_state; 1235 1236 /*u8 trials[2]; */ 1237 s8 num_trials, index; 1238 u8 SenseTrials[] = { INVERSION_ON, INVERSION_OFF }; 1239 1240 if (state->reinit_on_setfrontend) 1241 stv0367ter_init(fe); 1242 1243 if (fe->ops.tuner_ops.set_params) { 1244 if (state->use_i2c_gatectrl && fe->ops.i2c_gate_ctrl) 1245 fe->ops.i2c_gate_ctrl(fe, 1); 1246 fe->ops.tuner_ops.set_params(fe); 1247 if (state->use_i2c_gatectrl && fe->ops.i2c_gate_ctrl) 1248 fe->ops.i2c_gate_ctrl(fe, 0); 1249 } 1250 1251 switch (p->transmission_mode) { 1252 default: 1253 case TRANSMISSION_MODE_AUTO: 1254 case TRANSMISSION_MODE_2K: 1255 ter_state->mode = FE_TER_MODE_2K; 1256 break; 1257 /* case TRANSMISSION_MODE_4K: 1258 pLook.mode = FE_TER_MODE_4K; 1259 break;*/ 1260 case TRANSMISSION_MODE_8K: 1261 ter_state->mode = FE_TER_MODE_8K; 1262 break; 1263 } 1264 1265 switch (p->guard_interval) { 1266 default: 1267 case GUARD_INTERVAL_1_32: 1268 case GUARD_INTERVAL_1_16: 1269 case GUARD_INTERVAL_1_8: 1270 case GUARD_INTERVAL_1_4: 1271 ter_state->guard = p->guard_interval; 1272 break; 1273 case GUARD_INTERVAL_AUTO: 1274 ter_state->guard = GUARD_INTERVAL_1_32; 1275 break; 1276 } 1277 1278 switch (p->bandwidth_hz) { 1279 case 6000000: 1280 ter_state->bw = FE_TER_CHAN_BW_6M; 1281 break; 1282 case 7000000: 1283 ter_state->bw = FE_TER_CHAN_BW_7M; 1284 break; 1285 case 8000000: 1286 default: 1287 ter_state->bw = FE_TER_CHAN_BW_8M; 1288 } 1289 1290 ter_state->hierarchy = FE_TER_HIER_NONE; 1291 1292 switch (p->inversion) { 1293 case INVERSION_OFF: 1294 case INVERSION_ON: 1295 num_trials = 1; 1296 break; 1297 default: 1298 num_trials = 2; 1299 if (ter_state->first_lock) 1300 num_trials = 1; 1301 break; 1302 } 1303 1304 ter_state->state = FE_TER_NOLOCK; 1305 index = 0; 1306 1307 while (((index) < num_trials) && (ter_state->state != FE_TER_LOCKOK)) { 1308 if (!ter_state->first_lock) { 1309 if (p->inversion == INVERSION_AUTO) 1310 ter_state->sense = SenseTrials[index]; 1311 1312 } 1313 stv0367ter_algo(fe); 1314 1315 if ((ter_state->state == FE_TER_LOCKOK) && 1316 (p->inversion == INVERSION_AUTO) && 1317 (index == 1)) { 1318 /* invert spectrum sense */ 1319 SenseTrials[index] = SenseTrials[0]; 1320 SenseTrials[(index + 1) % 2] = (SenseTrials[1] + 1) % 2; 1321 } 1322 1323 index++; 1324 } 1325 1326 return 0; 1327 } 1328 1329 static int stv0367ter_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) 1330 { 1331 struct stv0367_state *state = fe->demodulator_priv; 1332 struct stv0367ter_state *ter_state = state->ter_state; 1333 u32 errs = 0; 1334 1335 /*wait for counting completion*/ 1336 if (stv0367_readbits(state, F367TER_SFERRC_OLDVALUE) == 0) { 1337 errs = 1338 ((u32)stv0367_readbits(state, F367TER_ERR_CNT1) 1339 * (1 << 16)) 1340 + ((u32)stv0367_readbits(state, F367TER_ERR_CNT1_HI) 1341 * (1 << 8)) 1342 + ((u32)stv0367_readbits(state, F367TER_ERR_CNT1_LO)); 1343 ter_state->ucblocks = errs; 1344 } 1345 1346 (*ucblocks) = ter_state->ucblocks; 1347 1348 return 0; 1349 } 1350 1351 static int stv0367ter_get_frontend(struct dvb_frontend *fe, 1352 struct dtv_frontend_properties *p) 1353 { 1354 struct stv0367_state *state = fe->demodulator_priv; 1355 struct stv0367ter_state *ter_state = state->ter_state; 1356 enum stv0367_ter_mode mode; 1357 int constell = 0,/* snr = 0,*/ Data = 0; 1358 1359 p->frequency = stv0367_get_tuner_freq(fe); 1360 if ((int)p->frequency < 0) 1361 p->frequency = -p->frequency; 1362 1363 constell = stv0367_readbits(state, F367TER_TPS_CONST); 1364 if (constell == 0) 1365 p->modulation = QPSK; 1366 else if (constell == 1) 1367 p->modulation = QAM_16; 1368 else 1369 p->modulation = QAM_64; 1370 1371 p->inversion = stv0367_readbits(state, F367TER_INV_SPECTR); 1372 1373 /* Get the Hierarchical mode */ 1374 Data = stv0367_readbits(state, F367TER_TPS_HIERMODE); 1375 1376 switch (Data) { 1377 case 0: 1378 p->hierarchy = HIERARCHY_NONE; 1379 break; 1380 case 1: 1381 p->hierarchy = HIERARCHY_1; 1382 break; 1383 case 2: 1384 p->hierarchy = HIERARCHY_2; 1385 break; 1386 case 3: 1387 p->hierarchy = HIERARCHY_4; 1388 break; 1389 default: 1390 p->hierarchy = HIERARCHY_AUTO; 1391 break; /* error */ 1392 } 1393 1394 /* Get the FEC Rate */ 1395 if (ter_state->hierarchy == FE_TER_HIER_LOW_PRIO) 1396 Data = stv0367_readbits(state, F367TER_TPS_LPCODE); 1397 else 1398 Data = stv0367_readbits(state, F367TER_TPS_HPCODE); 1399 1400 switch (Data) { 1401 case 0: 1402 p->code_rate_HP = FEC_1_2; 1403 break; 1404 case 1: 1405 p->code_rate_HP = FEC_2_3; 1406 break; 1407 case 2: 1408 p->code_rate_HP = FEC_3_4; 1409 break; 1410 case 3: 1411 p->code_rate_HP = FEC_5_6; 1412 break; 1413 case 4: 1414 p->code_rate_HP = FEC_7_8; 1415 break; 1416 default: 1417 p->code_rate_HP = FEC_AUTO; 1418 break; /* error */ 1419 } 1420 1421 mode = stv0367_readbits(state, F367TER_SYR_MODE); 1422 1423 switch (mode) { 1424 case FE_TER_MODE_2K: 1425 p->transmission_mode = TRANSMISSION_MODE_2K; 1426 break; 1427 /* case FE_TER_MODE_4K: 1428 p->transmission_mode = TRANSMISSION_MODE_4K; 1429 break;*/ 1430 case FE_TER_MODE_8K: 1431 p->transmission_mode = TRANSMISSION_MODE_8K; 1432 break; 1433 default: 1434 p->transmission_mode = TRANSMISSION_MODE_AUTO; 1435 } 1436 1437 p->guard_interval = stv0367_readbits(state, F367TER_SYR_GUARD); 1438 1439 return 0; 1440 } 1441 1442 static u32 stv0367ter_snr_readreg(struct dvb_frontend *fe) 1443 { 1444 struct stv0367_state *state = fe->demodulator_priv; 1445 u32 snru32 = 0; 1446 int cpt = 0; 1447 u8 cut = stv0367_readbits(state, F367TER_IDENTIFICATIONREG); 1448 1449 while (cpt < 10) { 1450 usleep_range(2000, 3000); 1451 if (cut == 0x50) /*cut 1.0 cut 1.1*/ 1452 snru32 += stv0367_readbits(state, F367TER_CHCSNR) / 4; 1453 else /*cu2.0*/ 1454 snru32 += 125 * stv0367_readbits(state, F367TER_CHCSNR); 1455 1456 cpt++; 1457 } 1458 snru32 /= 10;/*average on 10 values*/ 1459 1460 return snru32; 1461 } 1462 1463 static int stv0367ter_read_snr(struct dvb_frontend *fe, u16 *snr) 1464 { 1465 u32 snrval = stv0367ter_snr_readreg(fe); 1466 1467 *snr = snrval / 1000; 1468 1469 return 0; 1470 } 1471 1472 #if 0 1473 static int stv0367ter_status(struct dvb_frontend *fe) 1474 { 1475 1476 struct stv0367_state *state = fe->demodulator_priv; 1477 struct stv0367ter_state *ter_state = state->ter_state; 1478 int locked = FALSE; 1479 1480 locked = (stv0367_readbits(state, F367TER_LK)); 1481 if (!locked) 1482 ter_state->unlock_counter += 1; 1483 else 1484 ter_state->unlock_counter = 0; 1485 1486 if (ter_state->unlock_counter > 2) { 1487 if (!stv0367_readbits(state, F367TER_TPS_LOCK) || 1488 (!stv0367_readbits(state, F367TER_LK))) { 1489 stv0367_writebits(state, F367TER_CORE_ACTIVE, 0); 1490 usleep_range(2000, 3000); 1491 stv0367_writebits(state, F367TER_CORE_ACTIVE, 1); 1492 msleep(350); 1493 locked = (stv0367_readbits(state, F367TER_TPS_LOCK)) && 1494 (stv0367_readbits(state, F367TER_LK)); 1495 } 1496 1497 } 1498 1499 return locked; 1500 } 1501 #endif 1502 static int stv0367ter_read_status(struct dvb_frontend *fe, 1503 enum fe_status *status) 1504 { 1505 struct stv0367_state *state = fe->demodulator_priv; 1506 1507 dprintk("%s:\n", __func__); 1508 1509 *status = 0; 1510 1511 if (stv0367_readbits(state, F367TER_LK)) { 1512 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI 1513 | FE_HAS_SYNC | FE_HAS_LOCK; 1514 dprintk("%s: stv0367 has locked\n", __func__); 1515 } 1516 1517 return 0; 1518 } 1519 1520 static int stv0367ter_read_ber(struct dvb_frontend *fe, u32 *ber) 1521 { 1522 struct stv0367_state *state = fe->demodulator_priv; 1523 struct stv0367ter_state *ter_state = state->ter_state; 1524 u32 Errors = 0, tber = 0, temporary = 0; 1525 int abc = 0, def = 0; 1526 1527 1528 /*wait for counting completion*/ 1529 if (stv0367_readbits(state, F367TER_SFERRC_OLDVALUE) == 0) 1530 Errors = ((u32)stv0367_readbits(state, F367TER_SFEC_ERR_CNT) 1531 * (1 << 16)) 1532 + ((u32)stv0367_readbits(state, F367TER_SFEC_ERR_CNT_HI) 1533 * (1 << 8)) 1534 + ((u32)stv0367_readbits(state, 1535 F367TER_SFEC_ERR_CNT_LO)); 1536 /*measurement not completed, load previous value*/ 1537 else { 1538 tber = ter_state->pBER; 1539 return 0; 1540 } 1541 1542 abc = stv0367_readbits(state, F367TER_SFEC_ERR_SOURCE); 1543 def = stv0367_readbits(state, F367TER_SFEC_NUM_EVENT); 1544 1545 if (Errors == 0) { 1546 tber = 0; 1547 } else if (abc == 0x7) { 1548 if (Errors <= 4) { 1549 temporary = (Errors * 1000000000) / (8 * (1 << 14)); 1550 temporary = temporary; 1551 } else if (Errors <= 42) { 1552 temporary = (Errors * 100000000) / (8 * (1 << 14)); 1553 temporary = temporary * 10; 1554 } else if (Errors <= 429) { 1555 temporary = (Errors * 10000000) / (8 * (1 << 14)); 1556 temporary = temporary * 100; 1557 } else if (Errors <= 4294) { 1558 temporary = (Errors * 1000000) / (8 * (1 << 14)); 1559 temporary = temporary * 1000; 1560 } else if (Errors <= 42949) { 1561 temporary = (Errors * 100000) / (8 * (1 << 14)); 1562 temporary = temporary * 10000; 1563 } else if (Errors <= 429496) { 1564 temporary = (Errors * 10000) / (8 * (1 << 14)); 1565 temporary = temporary * 100000; 1566 } else { /*if (Errors<4294967) 2^22 max error*/ 1567 temporary = (Errors * 1000) / (8 * (1 << 14)); 1568 temporary = temporary * 100000; /* still to *10 */ 1569 } 1570 1571 /* Byte error*/ 1572 if (def == 2) 1573 /*tber=Errors/(8*(1 <<14));*/ 1574 tber = temporary; 1575 else if (def == 3) 1576 /*tber=Errors/(8*(1 <<16));*/ 1577 tber = temporary / 4; 1578 else if (def == 4) 1579 /*tber=Errors/(8*(1 <<18));*/ 1580 tber = temporary / 16; 1581 else if (def == 5) 1582 /*tber=Errors/(8*(1 <<20));*/ 1583 tber = temporary / 64; 1584 else if (def == 6) 1585 /*tber=Errors/(8*(1 <<22));*/ 1586 tber = temporary / 256; 1587 else 1588 /* should not pass here*/ 1589 tber = 0; 1590 1591 if ((Errors < 4294967) && (Errors > 429496)) 1592 tber *= 10; 1593 1594 } 1595 1596 /* save actual value */ 1597 ter_state->pBER = tber; 1598 1599 (*ber) = tber; 1600 1601 return 0; 1602 } 1603 #if 0 1604 static u32 stv0367ter_get_per(struct stv0367_state *state) 1605 { 1606 struct stv0367ter_state *ter_state = state->ter_state; 1607 u32 Errors = 0, Per = 0, temporary = 0; 1608 int abc = 0, def = 0, cpt = 0; 1609 1610 while (((stv0367_readbits(state, F367TER_SFERRC_OLDVALUE) == 1) && 1611 (cpt < 400)) || ((Errors == 0) && (cpt < 400))) { 1612 usleep_range(1000, 2000); 1613 Errors = ((u32)stv0367_readbits(state, F367TER_ERR_CNT1) 1614 * (1 << 16)) 1615 + ((u32)stv0367_readbits(state, F367TER_ERR_CNT1_HI) 1616 * (1 << 8)) 1617 + ((u32)stv0367_readbits(state, F367TER_ERR_CNT1_LO)); 1618 cpt++; 1619 } 1620 abc = stv0367_readbits(state, F367TER_ERR_SRC1); 1621 def = stv0367_readbits(state, F367TER_NUM_EVT1); 1622 1623 if (Errors == 0) 1624 Per = 0; 1625 else if (abc == 0x9) { 1626 if (Errors <= 4) { 1627 temporary = (Errors * 1000000000) / (8 * (1 << 8)); 1628 temporary = temporary; 1629 } else if (Errors <= 42) { 1630 temporary = (Errors * 100000000) / (8 * (1 << 8)); 1631 temporary = temporary * 10; 1632 } else if (Errors <= 429) { 1633 temporary = (Errors * 10000000) / (8 * (1 << 8)); 1634 temporary = temporary * 100; 1635 } else if (Errors <= 4294) { 1636 temporary = (Errors * 1000000) / (8 * (1 << 8)); 1637 temporary = temporary * 1000; 1638 } else if (Errors <= 42949) { 1639 temporary = (Errors * 100000) / (8 * (1 << 8)); 1640 temporary = temporary * 10000; 1641 } else { /*if(Errors<=429496) 2^16 errors max*/ 1642 temporary = (Errors * 10000) / (8 * (1 << 8)); 1643 temporary = temporary * 100000; 1644 } 1645 1646 /* pkt error*/ 1647 if (def == 2) 1648 /*Per=Errors/(1 << 8);*/ 1649 Per = temporary; 1650 else if (def == 3) 1651 /*Per=Errors/(1 << 10);*/ 1652 Per = temporary / 4; 1653 else if (def == 4) 1654 /*Per=Errors/(1 << 12);*/ 1655 Per = temporary / 16; 1656 else if (def == 5) 1657 /*Per=Errors/(1 << 14);*/ 1658 Per = temporary / 64; 1659 else if (def == 6) 1660 /*Per=Errors/(1 << 16);*/ 1661 Per = temporary / 256; 1662 else 1663 Per = 0; 1664 1665 } 1666 /* save actual value */ 1667 ter_state->pPER = Per; 1668 1669 return Per; 1670 } 1671 #endif 1672 static int stv0367_get_tune_settings(struct dvb_frontend *fe, 1673 struct dvb_frontend_tune_settings 1674 *fe_tune_settings) 1675 { 1676 fe_tune_settings->min_delay_ms = 1000; 1677 fe_tune_settings->step_size = 0; 1678 fe_tune_settings->max_drift = 0; 1679 1680 return 0; 1681 } 1682 1683 static void stv0367_release(struct dvb_frontend *fe) 1684 { 1685 struct stv0367_state *state = fe->demodulator_priv; 1686 1687 kfree(state->ter_state); 1688 kfree(state->cab_state); 1689 kfree(state); 1690 } 1691 1692 static const struct dvb_frontend_ops stv0367ter_ops = { 1693 .delsys = { SYS_DVBT }, 1694 .info = { 1695 .name = "ST STV0367 DVB-T", 1696 .frequency_min = 47000000, 1697 .frequency_max = 862000000, 1698 .frequency_stepsize = 15625, 1699 .frequency_tolerance = 0, 1700 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | 1701 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | 1702 FE_CAN_FEC_AUTO | 1703 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | 1704 FE_CAN_QAM_128 | FE_CAN_QAM_256 | FE_CAN_QAM_AUTO | 1705 FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_RECOVER | 1706 FE_CAN_INVERSION_AUTO | 1707 FE_CAN_MUTE_TS 1708 }, 1709 .release = stv0367_release, 1710 .init = stv0367ter_init, 1711 .sleep = stv0367ter_sleep, 1712 .i2c_gate_ctrl = stv0367ter_gate_ctrl, 1713 .set_frontend = stv0367ter_set_frontend, 1714 .get_frontend = stv0367ter_get_frontend, 1715 .get_tune_settings = stv0367_get_tune_settings, 1716 .read_status = stv0367ter_read_status, 1717 .read_ber = stv0367ter_read_ber,/* too slow */ 1718 /* .read_signal_strength = stv0367_read_signal_strength,*/ 1719 .read_snr = stv0367ter_read_snr, 1720 .read_ucblocks = stv0367ter_read_ucblocks, 1721 }; 1722 1723 struct dvb_frontend *stv0367ter_attach(const struct stv0367_config *config, 1724 struct i2c_adapter *i2c) 1725 { 1726 struct stv0367_state *state = NULL; 1727 struct stv0367ter_state *ter_state = NULL; 1728 1729 /* allocate memory for the internal state */ 1730 state = kzalloc(sizeof(struct stv0367_state), GFP_KERNEL); 1731 if (state == NULL) 1732 goto error; 1733 ter_state = kzalloc(sizeof(struct stv0367ter_state), GFP_KERNEL); 1734 if (ter_state == NULL) 1735 goto error; 1736 1737 /* setup the state */ 1738 state->i2c = i2c; 1739 state->config = config; 1740 state->ter_state = ter_state; 1741 state->fe.ops = stv0367ter_ops; 1742 state->fe.demodulator_priv = state; 1743 state->chip_id = stv0367_readreg(state, 0xf000); 1744 1745 /* demod operation options */ 1746 state->use_i2c_gatectrl = 1; 1747 state->deftabs = STV0367_DEFTAB_GENERIC; 1748 state->reinit_on_setfrontend = 1; 1749 state->auto_if_khz = 0; 1750 1751 dprintk("%s: chip_id = 0x%x\n", __func__, state->chip_id); 1752 1753 /* check if the demod is there */ 1754 if ((state->chip_id != 0x50) && (state->chip_id != 0x60)) 1755 goto error; 1756 1757 return &state->fe; 1758 1759 error: 1760 kfree(ter_state); 1761 kfree(state); 1762 return NULL; 1763 } 1764 EXPORT_SYMBOL(stv0367ter_attach); 1765 1766 static int stv0367cab_gate_ctrl(struct dvb_frontend *fe, int enable) 1767 { 1768 struct stv0367_state *state = fe->demodulator_priv; 1769 1770 dprintk("%s:\n", __func__); 1771 1772 stv0367_writebits(state, F367CAB_I2CT_ON, (enable > 0) ? 1 : 0); 1773 1774 return 0; 1775 } 1776 1777 static u32 stv0367cab_get_mclk(struct dvb_frontend *fe, u32 ExtClk_Hz) 1778 { 1779 struct stv0367_state *state = fe->demodulator_priv; 1780 u32 mclk_Hz = 0;/* master clock frequency (Hz) */ 1781 u32 M, N, P; 1782 1783 1784 if (stv0367_readbits(state, F367CAB_BYPASS_PLLXN) == 0) { 1785 N = (u32)stv0367_readbits(state, F367CAB_PLL_NDIV); 1786 if (N == 0) 1787 N = N + 1; 1788 1789 M = (u32)stv0367_readbits(state, F367CAB_PLL_MDIV); 1790 if (M == 0) 1791 M = M + 1; 1792 1793 P = (u32)stv0367_readbits(state, F367CAB_PLL_PDIV); 1794 1795 if (P > 5) 1796 P = 5; 1797 1798 mclk_Hz = ((ExtClk_Hz / 2) * N) / (M * (1 << P)); 1799 dprintk("stv0367cab_get_mclk BYPASS_PLLXN mclk_Hz=%d\n", 1800 mclk_Hz); 1801 } else 1802 mclk_Hz = ExtClk_Hz; 1803 1804 dprintk("stv0367cab_get_mclk final mclk_Hz=%d\n", mclk_Hz); 1805 1806 return mclk_Hz; 1807 } 1808 1809 static u32 stv0367cab_get_adc_freq(struct dvb_frontend *fe, u32 ExtClk_Hz) 1810 { 1811 u32 ADCClk_Hz = ExtClk_Hz; 1812 1813 ADCClk_Hz = stv0367cab_get_mclk(fe, ExtClk_Hz); 1814 1815 return ADCClk_Hz; 1816 } 1817 1818 static enum stv0367cab_mod stv0367cab_SetQamSize(struct stv0367_state *state, 1819 u32 SymbolRate, 1820 enum stv0367cab_mod QAMSize) 1821 { 1822 /* Set QAM size */ 1823 stv0367_writebits(state, F367CAB_QAM_MODE, QAMSize); 1824 1825 /* Set Registers settings specific to the QAM size */ 1826 switch (QAMSize) { 1827 case FE_CAB_MOD_QAM4: 1828 stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); 1829 break; 1830 case FE_CAB_MOD_QAM16: 1831 stv0367_writereg(state, R367CAB_AGC_PWR_REF_L, 0x64); 1832 stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); 1833 stv0367_writereg(state, R367CAB_FSM_STATE, 0x90); 1834 stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); 1835 stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa7); 1836 stv0367_writereg(state, R367CAB_EQU_CRL_LD_SEN, 0x95); 1837 stv0367_writereg(state, R367CAB_EQU_CRL_LIMITER, 0x40); 1838 stv0367_writereg(state, R367CAB_EQU_PNT_GAIN, 0x8a); 1839 break; 1840 case FE_CAB_MOD_QAM32: 1841 stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); 1842 stv0367_writereg(state, R367CAB_AGC_PWR_REF_L, 0x6e); 1843 stv0367_writereg(state, R367CAB_FSM_STATE, 0xb0); 1844 stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); 1845 stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xb7); 1846 stv0367_writereg(state, R367CAB_EQU_CRL_LD_SEN, 0x9d); 1847 stv0367_writereg(state, R367CAB_EQU_CRL_LIMITER, 0x7f); 1848 stv0367_writereg(state, R367CAB_EQU_PNT_GAIN, 0xa7); 1849 break; 1850 case FE_CAB_MOD_QAM64: 1851 stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x82); 1852 stv0367_writereg(state, R367CAB_AGC_PWR_REF_L, 0x5a); 1853 if (SymbolRate > 4500000) { 1854 stv0367_writereg(state, R367CAB_FSM_STATE, 0xb0); 1855 stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); 1856 stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa5); 1857 } else if (SymbolRate > 2500000) { 1858 stv0367_writereg(state, R367CAB_FSM_STATE, 0xa0); 1859 stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); 1860 stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa6); 1861 } else { 1862 stv0367_writereg(state, R367CAB_FSM_STATE, 0xa0); 1863 stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xd1); 1864 stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa7); 1865 } 1866 stv0367_writereg(state, R367CAB_EQU_CRL_LD_SEN, 0x95); 1867 stv0367_writereg(state, R367CAB_EQU_CRL_LIMITER, 0x40); 1868 stv0367_writereg(state, R367CAB_EQU_PNT_GAIN, 0x99); 1869 break; 1870 case FE_CAB_MOD_QAM128: 1871 stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); 1872 stv0367_writereg(state, R367CAB_AGC_PWR_REF_L, 0x76); 1873 stv0367_writereg(state, R367CAB_FSM_STATE, 0x90); 1874 stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xb1); 1875 if (SymbolRate > 4500000) 1876 stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa7); 1877 else if (SymbolRate > 2500000) 1878 stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa6); 1879 else 1880 stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0x97); 1881 1882 stv0367_writereg(state, R367CAB_EQU_CRL_LD_SEN, 0x8e); 1883 stv0367_writereg(state, R367CAB_EQU_CRL_LIMITER, 0x7f); 1884 stv0367_writereg(state, R367CAB_EQU_PNT_GAIN, 0xa7); 1885 break; 1886 case FE_CAB_MOD_QAM256: 1887 stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x94); 1888 stv0367_writereg(state, R367CAB_AGC_PWR_REF_L, 0x5a); 1889 stv0367_writereg(state, R367CAB_FSM_STATE, 0xa0); 1890 if (SymbolRate > 4500000) 1891 stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); 1892 else if (SymbolRate > 2500000) 1893 stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); 1894 else 1895 stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xd1); 1896 1897 stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa7); 1898 stv0367_writereg(state, R367CAB_EQU_CRL_LD_SEN, 0x85); 1899 stv0367_writereg(state, R367CAB_EQU_CRL_LIMITER, 0x40); 1900 stv0367_writereg(state, R367CAB_EQU_PNT_GAIN, 0xa7); 1901 break; 1902 case FE_CAB_MOD_QAM512: 1903 stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); 1904 break; 1905 case FE_CAB_MOD_QAM1024: 1906 stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); 1907 break; 1908 default: 1909 break; 1910 } 1911 1912 return QAMSize; 1913 } 1914 1915 static u32 stv0367cab_set_derot_freq(struct stv0367_state *state, 1916 u32 adc_hz, s32 derot_hz) 1917 { 1918 u32 sampled_if = 0; 1919 u32 adc_khz; 1920 1921 adc_khz = adc_hz / 1000; 1922 1923 dprintk("%s: adc_hz=%d derot_hz=%d\n", __func__, adc_hz, derot_hz); 1924 1925 if (adc_khz != 0) { 1926 if (derot_hz < 1000000) 1927 derot_hz = adc_hz / 4; /* ZIF operation */ 1928 if (derot_hz > adc_hz) 1929 derot_hz = derot_hz - adc_hz; 1930 sampled_if = (u32)derot_hz / 1000; 1931 sampled_if *= 32768; 1932 sampled_if /= adc_khz; 1933 sampled_if *= 256; 1934 } 1935 1936 if (sampled_if > 8388607) 1937 sampled_if = 8388607; 1938 1939 dprintk("%s: sampled_if=0x%x\n", __func__, sampled_if); 1940 1941 stv0367_writereg(state, R367CAB_MIX_NCO_LL, sampled_if); 1942 stv0367_writereg(state, R367CAB_MIX_NCO_HL, (sampled_if >> 8)); 1943 stv0367_writebits(state, F367CAB_MIX_NCO_INC_HH, (sampled_if >> 16)); 1944 1945 return derot_hz; 1946 } 1947 1948 static u32 stv0367cab_get_derot_freq(struct stv0367_state *state, u32 adc_hz) 1949 { 1950 u32 sampled_if; 1951 1952 sampled_if = stv0367_readbits(state, F367CAB_MIX_NCO_INC_LL) + 1953 (stv0367_readbits(state, F367CAB_MIX_NCO_INC_HL) << 8) + 1954 (stv0367_readbits(state, F367CAB_MIX_NCO_INC_HH) << 16); 1955 1956 sampled_if /= 256; 1957 sampled_if *= (adc_hz / 1000); 1958 sampled_if += 1; 1959 sampled_if /= 32768; 1960 1961 return sampled_if; 1962 } 1963 1964 static u32 stv0367cab_set_srate(struct stv0367_state *state, u32 adc_hz, 1965 u32 mclk_hz, u32 SymbolRate, 1966 enum stv0367cab_mod QAMSize) 1967 { 1968 u32 QamSizeCorr = 0; 1969 u32 u32_tmp = 0, u32_tmp1 = 0; 1970 u32 adp_khz; 1971 1972 dprintk("%s:\n", __func__); 1973 1974 /* Set Correction factor of SRC gain */ 1975 switch (QAMSize) { 1976 case FE_CAB_MOD_QAM4: 1977 QamSizeCorr = 1110; 1978 break; 1979 case FE_CAB_MOD_QAM16: 1980 QamSizeCorr = 1032; 1981 break; 1982 case FE_CAB_MOD_QAM32: 1983 QamSizeCorr = 954; 1984 break; 1985 case FE_CAB_MOD_QAM64: 1986 QamSizeCorr = 983; 1987 break; 1988 case FE_CAB_MOD_QAM128: 1989 QamSizeCorr = 957; 1990 break; 1991 case FE_CAB_MOD_QAM256: 1992 QamSizeCorr = 948; 1993 break; 1994 case FE_CAB_MOD_QAM512: 1995 QamSizeCorr = 0; 1996 break; 1997 case FE_CAB_MOD_QAM1024: 1998 QamSizeCorr = 944; 1999 break; 2000 default: 2001 break; 2002 } 2003 2004 /* Transfer ratio calculation */ 2005 if (adc_hz != 0) { 2006 u32_tmp = 256 * SymbolRate; 2007 u32_tmp = u32_tmp / adc_hz; 2008 } 2009 stv0367_writereg(state, R367CAB_EQU_CRL_TFR, (u8)u32_tmp); 2010 2011 /* Symbol rate and SRC gain calculation */ 2012 adp_khz = (mclk_hz >> 1) / 1000;/* TRL works at half the system clock */ 2013 if (adp_khz != 0) { 2014 u32_tmp = SymbolRate; 2015 u32_tmp1 = SymbolRate; 2016 2017 if (u32_tmp < 2097152) { /* 2097152 = 2^21 */ 2018 /* Symbol rate calculation */ 2019 u32_tmp *= 2048; /* 2048 = 2^11 */ 2020 u32_tmp = u32_tmp / adp_khz; 2021 u32_tmp = u32_tmp * 16384; /* 16384 = 2^14 */ 2022 u32_tmp /= 125 ; /* 125 = 1000/2^3 */ 2023 u32_tmp = u32_tmp * 8; /* 8 = 2^3 */ 2024 2025 /* SRC Gain Calculation */ 2026 u32_tmp1 *= 2048; /* *2*2^10 */ 2027 u32_tmp1 /= 439; /* *2/878 */ 2028 u32_tmp1 *= 256; /* *2^8 */ 2029 u32_tmp1 = u32_tmp1 / adp_khz; /* /(AdpClk in kHz) */ 2030 u32_tmp1 *= QamSizeCorr * 9; /* *1000*corr factor */ 2031 u32_tmp1 = u32_tmp1 / 10000000; 2032 2033 } else if (u32_tmp < 4194304) { /* 4194304 = 2**22 */ 2034 /* Symbol rate calculation */ 2035 u32_tmp *= 1024 ; /* 1024 = 2**10 */ 2036 u32_tmp = u32_tmp / adp_khz; 2037 u32_tmp = u32_tmp * 16384; /* 16384 = 2**14 */ 2038 u32_tmp /= 125 ; /* 125 = 1000/2**3 */ 2039 u32_tmp = u32_tmp * 16; /* 16 = 2**4 */ 2040 2041 /* SRC Gain Calculation */ 2042 u32_tmp1 *= 1024; /* *2*2^9 */ 2043 u32_tmp1 /= 439; /* *2/878 */ 2044 u32_tmp1 *= 256; /* *2^8 */ 2045 u32_tmp1 = u32_tmp1 / adp_khz; /* /(AdpClk in kHz)*/ 2046 u32_tmp1 *= QamSizeCorr * 9; /* *1000*corr factor */ 2047 u32_tmp1 = u32_tmp1 / 5000000; 2048 } else if (u32_tmp < 8388607) { /* 8388607 = 2**23 */ 2049 /* Symbol rate calculation */ 2050 u32_tmp *= 512 ; /* 512 = 2**9 */ 2051 u32_tmp = u32_tmp / adp_khz; 2052 u32_tmp = u32_tmp * 16384; /* 16384 = 2**14 */ 2053 u32_tmp /= 125 ; /* 125 = 1000/2**3 */ 2054 u32_tmp = u32_tmp * 32; /* 32 = 2**5 */ 2055 2056 /* SRC Gain Calculation */ 2057 u32_tmp1 *= 512; /* *2*2^8 */ 2058 u32_tmp1 /= 439; /* *2/878 */ 2059 u32_tmp1 *= 256; /* *2^8 */ 2060 u32_tmp1 = u32_tmp1 / adp_khz; /* /(AdpClk in kHz) */ 2061 u32_tmp1 *= QamSizeCorr * 9; /* *1000*corr factor */ 2062 u32_tmp1 = u32_tmp1 / 2500000; 2063 } else { 2064 /* Symbol rate calculation */ 2065 u32_tmp *= 256 ; /* 256 = 2**8 */ 2066 u32_tmp = u32_tmp / adp_khz; 2067 u32_tmp = u32_tmp * 16384; /* 16384 = 2**13 */ 2068 u32_tmp /= 125 ; /* 125 = 1000/2**3 */ 2069 u32_tmp = u32_tmp * 64; /* 64 = 2**6 */ 2070 2071 /* SRC Gain Calculation */ 2072 u32_tmp1 *= 256; /* 2*2^7 */ 2073 u32_tmp1 /= 439; /* *2/878 */ 2074 u32_tmp1 *= 256; /* *2^8 */ 2075 u32_tmp1 = u32_tmp1 / adp_khz; /* /(AdpClk in kHz) */ 2076 u32_tmp1 *= QamSizeCorr * 9; /* *1000*corr factor */ 2077 u32_tmp1 = u32_tmp1 / 1250000; 2078 } 2079 } 2080 #if 0 2081 /* Filters' coefficients are calculated and written 2082 into registers only if the filters are enabled */ 2083 if (stv0367_readbits(state, F367CAB_ADJ_EN)) { 2084 stv0367cab_SetIirAdjacentcoefficient(state, mclk_hz, 2085 SymbolRate); 2086 /* AllPass filter must be enabled 2087 when the adjacents filter is used */ 2088 stv0367_writebits(state, F367CAB_ALLPASSFILT_EN, 1); 2089 stv0367cab_SetAllPasscoefficient(state, mclk_hz, SymbolRate); 2090 } else 2091 /* AllPass filter must be disabled 2092 when the adjacents filter is not used */ 2093 #endif 2094 stv0367_writebits(state, F367CAB_ALLPASSFILT_EN, 0); 2095 2096 stv0367_writereg(state, R367CAB_SRC_NCO_LL, u32_tmp); 2097 stv0367_writereg(state, R367CAB_SRC_NCO_LH, (u32_tmp >> 8)); 2098 stv0367_writereg(state, R367CAB_SRC_NCO_HL, (u32_tmp >> 16)); 2099 stv0367_writereg(state, R367CAB_SRC_NCO_HH, (u32_tmp >> 24)); 2100 2101 stv0367_writereg(state, R367CAB_IQDEM_GAIN_SRC_L, u32_tmp1 & 0x00ff); 2102 stv0367_writebits(state, F367CAB_GAIN_SRC_HI, (u32_tmp1 >> 8) & 0x00ff); 2103 2104 return SymbolRate ; 2105 } 2106 2107 static u32 stv0367cab_GetSymbolRate(struct stv0367_state *state, u32 mclk_hz) 2108 { 2109 u32 regsym; 2110 u32 adp_khz; 2111 2112 regsym = stv0367_readreg(state, R367CAB_SRC_NCO_LL) + 2113 (stv0367_readreg(state, R367CAB_SRC_NCO_LH) << 8) + 2114 (stv0367_readreg(state, R367CAB_SRC_NCO_HL) << 16) + 2115 (stv0367_readreg(state, R367CAB_SRC_NCO_HH) << 24); 2116 2117 adp_khz = (mclk_hz >> 1) / 1000;/* TRL works at half the system clock */ 2118 2119 if (regsym < 134217728) { /* 134217728L = 2**27*/ 2120 regsym = regsym * 32; /* 32 = 2**5 */ 2121 regsym = regsym / 32768; /* 32768L = 2**15 */ 2122 regsym = adp_khz * regsym; /* AdpClk in kHz */ 2123 regsym = regsym / 128; /* 128 = 2**7 */ 2124 regsym *= 125 ; /* 125 = 1000/2**3 */ 2125 regsym /= 2048 ; /* 2048 = 2**11 */ 2126 } else if (regsym < 268435456) { /* 268435456L = 2**28 */ 2127 regsym = regsym * 16; /* 16 = 2**4 */ 2128 regsym = regsym / 32768; /* 32768L = 2**15 */ 2129 regsym = adp_khz * regsym; /* AdpClk in kHz */ 2130 regsym = regsym / 128; /* 128 = 2**7 */ 2131 regsym *= 125 ; /* 125 = 1000/2**3*/ 2132 regsym /= 1024 ; /* 256 = 2**10*/ 2133 } else if (regsym < 536870912) { /* 536870912L = 2**29*/ 2134 regsym = regsym * 8; /* 8 = 2**3 */ 2135 regsym = regsym / 32768; /* 32768L = 2**15 */ 2136 regsym = adp_khz * regsym; /* AdpClk in kHz */ 2137 regsym = regsym / 128; /* 128 = 2**7 */ 2138 regsym *= 125 ; /* 125 = 1000/2**3 */ 2139 regsym /= 512 ; /* 128 = 2**9 */ 2140 } else { 2141 regsym = regsym * 4; /* 4 = 2**2 */ 2142 regsym = regsym / 32768; /* 32768L = 2**15 */ 2143 regsym = adp_khz * regsym; /* AdpClk in kHz */ 2144 regsym = regsym / 128; /* 128 = 2**7 */ 2145 regsym *= 125 ; /* 125 = 1000/2**3 */ 2146 regsym /= 256 ; /* 64 = 2**8 */ 2147 } 2148 2149 return regsym; 2150 } 2151 2152 static int stv0367cab_read_status(struct dvb_frontend *fe, 2153 enum fe_status *status) 2154 { 2155 struct stv0367_state *state = fe->demodulator_priv; 2156 2157 dprintk("%s:\n", __func__); 2158 2159 *status = 0; 2160 2161 if (state->cab_state->state > FE_CAB_NOSIGNAL) 2162 *status |= FE_HAS_SIGNAL; 2163 2164 if (state->cab_state->state > FE_CAB_NOCARRIER) 2165 *status |= FE_HAS_CARRIER; 2166 2167 if (state->cab_state->state >= FE_CAB_DEMODOK) 2168 *status |= FE_HAS_VITERBI; 2169 2170 if (state->cab_state->state >= FE_CAB_DATAOK) 2171 *status |= FE_HAS_SYNC; 2172 2173 if (stv0367_readbits(state, (state->cab_state->qamfec_status_reg ? 2174 state->cab_state->qamfec_status_reg : F367CAB_QAMFEC_LOCK))) { 2175 *status |= FE_HAS_LOCK; 2176 dprintk("%s: stv0367 has locked\n", __func__); 2177 } 2178 2179 return 0; 2180 } 2181 2182 static int stv0367cab_standby(struct dvb_frontend *fe, u8 standby_on) 2183 { 2184 struct stv0367_state *state = fe->demodulator_priv; 2185 2186 dprintk("%s:\n", __func__); 2187 2188 if (standby_on) { 2189 stv0367_writebits(state, F367CAB_BYPASS_PLLXN, 0x03); 2190 stv0367_writebits(state, F367CAB_STDBY_PLLXN, 0x01); 2191 stv0367_writebits(state, F367CAB_STDBY, 1); 2192 stv0367_writebits(state, F367CAB_STDBY_CORE, 1); 2193 stv0367_writebits(state, F367CAB_EN_BUFFER_I, 0); 2194 stv0367_writebits(state, F367CAB_EN_BUFFER_Q, 0); 2195 stv0367_writebits(state, F367CAB_POFFQ, 1); 2196 stv0367_writebits(state, F367CAB_POFFI, 1); 2197 } else { 2198 stv0367_writebits(state, F367CAB_STDBY_PLLXN, 0x00); 2199 stv0367_writebits(state, F367CAB_BYPASS_PLLXN, 0x00); 2200 stv0367_writebits(state, F367CAB_STDBY, 0); 2201 stv0367_writebits(state, F367CAB_STDBY_CORE, 0); 2202 stv0367_writebits(state, F367CAB_EN_BUFFER_I, 1); 2203 stv0367_writebits(state, F367CAB_EN_BUFFER_Q, 1); 2204 stv0367_writebits(state, F367CAB_POFFQ, 0); 2205 stv0367_writebits(state, F367CAB_POFFI, 0); 2206 } 2207 2208 return 0; 2209 } 2210 2211 static int stv0367cab_sleep(struct dvb_frontend *fe) 2212 { 2213 return stv0367cab_standby(fe, 1); 2214 } 2215 2216 static int stv0367cab_init(struct dvb_frontend *fe) 2217 { 2218 struct stv0367_state *state = fe->demodulator_priv; 2219 struct stv0367cab_state *cab_state = state->cab_state; 2220 2221 dprintk("%s:\n", __func__); 2222 2223 stv0367_write_table(state, 2224 stv0367_deftabs[state->deftabs][STV0367_TAB_CAB]); 2225 2226 switch (state->config->ts_mode) { 2227 case STV0367_DVBCI_CLOCK: 2228 dprintk("Setting TSMode = STV0367_DVBCI_CLOCK\n"); 2229 stv0367_writebits(state, F367CAB_OUTFORMAT, 0x03); 2230 break; 2231 case STV0367_SERIAL_PUNCT_CLOCK: 2232 case STV0367_SERIAL_CONT_CLOCK: 2233 stv0367_writebits(state, F367CAB_OUTFORMAT, 0x01); 2234 break; 2235 case STV0367_PARALLEL_PUNCT_CLOCK: 2236 case STV0367_OUTPUTMODE_DEFAULT: 2237 stv0367_writebits(state, F367CAB_OUTFORMAT, 0x00); 2238 break; 2239 } 2240 2241 switch (state->config->clk_pol) { 2242 case STV0367_RISINGEDGE_CLOCK: 2243 stv0367_writebits(state, F367CAB_CLK_POLARITY, 0x00); 2244 break; 2245 case STV0367_FALLINGEDGE_CLOCK: 2246 case STV0367_CLOCKPOLARITY_DEFAULT: 2247 stv0367_writebits(state, F367CAB_CLK_POLARITY, 0x01); 2248 break; 2249 } 2250 2251 stv0367_writebits(state, F367CAB_SYNC_STRIP, 0x00); 2252 2253 stv0367_writebits(state, F367CAB_CT_NBST, 0x01); 2254 2255 stv0367_writebits(state, F367CAB_TS_SWAP, 0x01); 2256 2257 stv0367_writebits(state, F367CAB_FIFO_BYPASS, 0x00); 2258 2259 stv0367_writereg(state, R367CAB_ANACTRL, 0x00);/*PLL enabled and used */ 2260 2261 cab_state->mclk = stv0367cab_get_mclk(fe, state->config->xtal); 2262 cab_state->adc_clk = stv0367cab_get_adc_freq(fe, state->config->xtal); 2263 2264 return 0; 2265 } 2266 static 2267 enum stv0367_cab_signal_type stv0367cab_algo(struct stv0367_state *state, 2268 struct dtv_frontend_properties *p) 2269 { 2270 struct stv0367cab_state *cab_state = state->cab_state; 2271 enum stv0367_cab_signal_type signalType = FE_CAB_NOAGC; 2272 u32 QAMFEC_Lock, QAM_Lock, u32_tmp, ifkhz, 2273 LockTime, TRLTimeOut, AGCTimeOut, CRLSymbols, 2274 CRLTimeOut, EQLTimeOut, DemodTimeOut, FECTimeOut; 2275 u8 TrackAGCAccum; 2276 s32 tmp; 2277 2278 dprintk("%s:\n", __func__); 2279 2280 stv0367_get_if_khz(state, &ifkhz); 2281 2282 /* Timeouts calculation */ 2283 /* A max lock time of 25 ms is allowed for delayed AGC */ 2284 AGCTimeOut = 25; 2285 /* 100000 symbols needed by the TRL as a maximum value */ 2286 TRLTimeOut = 100000000 / p->symbol_rate; 2287 /* CRLSymbols is the needed number of symbols to achieve a lock 2288 within [-4%, +4%] of the symbol rate. 2289 CRL timeout is calculated 2290 for a lock within [-search_range, +search_range]. 2291 EQL timeout can be changed depending on 2292 the micro-reflections we want to handle. 2293 A characterization must be performed 2294 with these echoes to get new timeout values. 2295 */ 2296 switch (p->modulation) { 2297 case QAM_16: 2298 CRLSymbols = 150000; 2299 EQLTimeOut = 100; 2300 break; 2301 case QAM_32: 2302 CRLSymbols = 250000; 2303 EQLTimeOut = 100; 2304 break; 2305 case QAM_64: 2306 CRLSymbols = 200000; 2307 EQLTimeOut = 100; 2308 break; 2309 case QAM_128: 2310 CRLSymbols = 250000; 2311 EQLTimeOut = 100; 2312 break; 2313 case QAM_256: 2314 CRLSymbols = 250000; 2315 EQLTimeOut = 100; 2316 break; 2317 default: 2318 CRLSymbols = 200000; 2319 EQLTimeOut = 100; 2320 break; 2321 } 2322 #if 0 2323 if (pIntParams->search_range < 0) { 2324 CRLTimeOut = (25 * CRLSymbols * 2325 (-pIntParams->search_range / 1000)) / 2326 (pIntParams->symbol_rate / 1000); 2327 } else 2328 #endif 2329 CRLTimeOut = (25 * CRLSymbols * (cab_state->search_range / 1000)) / 2330 (p->symbol_rate / 1000); 2331 2332 CRLTimeOut = (1000 * CRLTimeOut) / p->symbol_rate; 2333 /* Timeouts below 50ms are coerced */ 2334 if (CRLTimeOut < 50) 2335 CRLTimeOut = 50; 2336 /* A maximum of 100 TS packets is needed to get FEC lock even in case 2337 the spectrum inversion needs to be changed. 2338 This is equal to 20 ms in case of the lowest symbol rate of 0.87Msps 2339 */ 2340 FECTimeOut = 20; 2341 DemodTimeOut = AGCTimeOut + TRLTimeOut + CRLTimeOut + EQLTimeOut; 2342 2343 dprintk("%s: DemodTimeOut=%d\n", __func__, DemodTimeOut); 2344 2345 /* Reset the TRL to ensure nothing starts until the 2346 AGC is stable which ensures a better lock time 2347 */ 2348 stv0367_writereg(state, R367CAB_CTRL_1, 0x04); 2349 /* Set AGC accumulation time to minimum and lock threshold to maximum 2350 in order to speed up the AGC lock */ 2351 TrackAGCAccum = stv0367_readbits(state, F367CAB_AGC_ACCUMRSTSEL); 2352 stv0367_writebits(state, F367CAB_AGC_ACCUMRSTSEL, 0x0); 2353 /* Modulus Mapper is disabled */ 2354 stv0367_writebits(state, F367CAB_MODULUSMAP_EN, 0); 2355 /* Disable the sweep function */ 2356 stv0367_writebits(state, F367CAB_SWEEP_EN, 0); 2357 /* The sweep function is never used, Sweep rate must be set to 0 */ 2358 /* Set the derotator frequency in Hz */ 2359 stv0367cab_set_derot_freq(state, cab_state->adc_clk, 2360 (1000 * (s32)ifkhz + cab_state->derot_offset)); 2361 /* Disable the Allpass Filter when the symbol rate is out of range */ 2362 if ((p->symbol_rate > 10800000) | (p->symbol_rate < 1800000)) { 2363 stv0367_writebits(state, F367CAB_ADJ_EN, 0); 2364 stv0367_writebits(state, F367CAB_ALLPASSFILT_EN, 0); 2365 } 2366 #if 0 2367 /* Check if the tuner is locked */ 2368 tuner_lock = stv0367cab_tuner_get_status(fe); 2369 if (tuner_lock == 0) 2370 return FE_367CAB_NOTUNER; 2371 #endif 2372 /* Release the TRL to start demodulator acquisition */ 2373 /* Wait for QAM lock */ 2374 LockTime = 0; 2375 stv0367_writereg(state, R367CAB_CTRL_1, 0x00); 2376 do { 2377 QAM_Lock = stv0367_readbits(state, F367CAB_FSM_STATUS); 2378 if ((LockTime >= (DemodTimeOut - EQLTimeOut)) && 2379 (QAM_Lock == 0x04)) 2380 /* 2381 * We don't wait longer, the frequency/phase offset 2382 * must be too big 2383 */ 2384 LockTime = DemodTimeOut; 2385 else if ((LockTime >= (AGCTimeOut + TRLTimeOut)) && 2386 (QAM_Lock == 0x02)) 2387 /* 2388 * We don't wait longer, either there is no signal or 2389 * it is not the right symbol rate or it is an analog 2390 * carrier 2391 */ 2392 { 2393 LockTime = DemodTimeOut; 2394 u32_tmp = stv0367_readbits(state, 2395 F367CAB_AGC_PWR_WORD_LO) + 2396 (stv0367_readbits(state, 2397 F367CAB_AGC_PWR_WORD_ME) << 8) + 2398 (stv0367_readbits(state, 2399 F367CAB_AGC_PWR_WORD_HI) << 16); 2400 if (u32_tmp >= 131072) 2401 u32_tmp = 262144 - u32_tmp; 2402 u32_tmp = u32_tmp / (1 << (11 - stv0367_readbits(state, 2403 F367CAB_AGC_IF_BWSEL))); 2404 2405 if (u32_tmp < stv0367_readbits(state, 2406 F367CAB_AGC_PWRREF_LO) + 2407 256 * stv0367_readbits(state, 2408 F367CAB_AGC_PWRREF_HI) - 10) 2409 QAM_Lock = 0x0f; 2410 } else { 2411 usleep_range(10000, 20000); 2412 LockTime += 10; 2413 } 2414 dprintk("QAM_Lock=0x%x LockTime=%d\n", QAM_Lock, LockTime); 2415 tmp = stv0367_readreg(state, R367CAB_IT_STATUS1); 2416 2417 dprintk("R367CAB_IT_STATUS1=0x%x\n", tmp); 2418 2419 } while (((QAM_Lock != 0x0c) && (QAM_Lock != 0x0b)) && 2420 (LockTime < DemodTimeOut)); 2421 2422 dprintk("QAM_Lock=0x%x\n", QAM_Lock); 2423 2424 tmp = stv0367_readreg(state, R367CAB_IT_STATUS1); 2425 dprintk("R367CAB_IT_STATUS1=0x%x\n", tmp); 2426 tmp = stv0367_readreg(state, R367CAB_IT_STATUS2); 2427 dprintk("R367CAB_IT_STATUS2=0x%x\n", tmp); 2428 2429 tmp = stv0367cab_get_derot_freq(state, cab_state->adc_clk); 2430 dprintk("stv0367cab_get_derot_freq=0x%x\n", tmp); 2431 2432 if ((QAM_Lock == 0x0c) || (QAM_Lock == 0x0b)) { 2433 /* Wait for FEC lock */ 2434 LockTime = 0; 2435 do { 2436 usleep_range(5000, 7000); 2437 LockTime += 5; 2438 QAMFEC_Lock = stv0367_readbits(state, 2439 (state->cab_state->qamfec_status_reg ? 2440 state->cab_state->qamfec_status_reg : 2441 F367CAB_QAMFEC_LOCK)); 2442 } while (!QAMFEC_Lock && (LockTime < FECTimeOut)); 2443 } else 2444 QAMFEC_Lock = 0; 2445 2446 if (QAMFEC_Lock) { 2447 signalType = FE_CAB_DATAOK; 2448 cab_state->spect_inv = stv0367_readbits(state, 2449 F367CAB_QUAD_INV); 2450 #if 0 2451 /* not clear for me */ 2452 if (ifkhz != 0) { 2453 if (ifkhz > cab_state->adc_clk / 1000) { 2454 cab_state->freq_khz = 2455 FE_Cab_TunerGetFrequency(pIntParams->hTuner) 2456 - stv0367cab_get_derot_freq(state, cab_state->adc_clk) 2457 - cab_state->adc_clk / 1000 + ifkhz; 2458 } else { 2459 cab_state->freq_khz = 2460 FE_Cab_TunerGetFrequency(pIntParams->hTuner) 2461 - stv0367cab_get_derot_freq(state, cab_state->adc_clk) 2462 + ifkhz; 2463 } 2464 } else { 2465 cab_state->freq_khz = 2466 FE_Cab_TunerGetFrequency(pIntParams->hTuner) + 2467 stv0367cab_get_derot_freq(state, 2468 cab_state->adc_clk) - 2469 cab_state->adc_clk / 4000; 2470 } 2471 #endif 2472 cab_state->symbol_rate = stv0367cab_GetSymbolRate(state, 2473 cab_state->mclk); 2474 cab_state->locked = 1; 2475 2476 /* stv0367_setbits(state, F367CAB_AGC_ACCUMRSTSEL,7);*/ 2477 } else { 2478 switch (QAM_Lock) { 2479 case 1: 2480 signalType = FE_CAB_NOAGC; 2481 break; 2482 case 2: 2483 signalType = FE_CAB_NOTIMING; 2484 break; 2485 case 3: 2486 signalType = FE_CAB_TIMINGOK; 2487 break; 2488 case 4: 2489 signalType = FE_CAB_NOCARRIER; 2490 break; 2491 case 5: 2492 signalType = FE_CAB_CARRIEROK; 2493 break; 2494 case 7: 2495 signalType = FE_CAB_NOBLIND; 2496 break; 2497 case 8: 2498 signalType = FE_CAB_BLINDOK; 2499 break; 2500 case 10: 2501 signalType = FE_CAB_NODEMOD; 2502 break; 2503 case 11: 2504 signalType = FE_CAB_DEMODOK; 2505 break; 2506 case 12: 2507 signalType = FE_CAB_DEMODOK; 2508 break; 2509 case 13: 2510 signalType = FE_CAB_NODEMOD; 2511 break; 2512 case 14: 2513 signalType = FE_CAB_NOBLIND; 2514 break; 2515 case 15: 2516 signalType = FE_CAB_NOSIGNAL; 2517 break; 2518 default: 2519 break; 2520 } 2521 2522 } 2523 2524 /* Set the AGC control values to tracking values */ 2525 stv0367_writebits(state, F367CAB_AGC_ACCUMRSTSEL, TrackAGCAccum); 2526 return signalType; 2527 } 2528 2529 static int stv0367cab_set_frontend(struct dvb_frontend *fe) 2530 { 2531 struct dtv_frontend_properties *p = &fe->dtv_property_cache; 2532 struct stv0367_state *state = fe->demodulator_priv; 2533 struct stv0367cab_state *cab_state = state->cab_state; 2534 enum stv0367cab_mod QAMSize = 0; 2535 2536 dprintk("%s: freq = %d, srate = %d\n", __func__, 2537 p->frequency, p->symbol_rate); 2538 2539 cab_state->derot_offset = 0; 2540 2541 switch (p->modulation) { 2542 case QAM_16: 2543 QAMSize = FE_CAB_MOD_QAM16; 2544 break; 2545 case QAM_32: 2546 QAMSize = FE_CAB_MOD_QAM32; 2547 break; 2548 case QAM_64: 2549 QAMSize = FE_CAB_MOD_QAM64; 2550 break; 2551 case QAM_128: 2552 QAMSize = FE_CAB_MOD_QAM128; 2553 break; 2554 case QAM_256: 2555 QAMSize = FE_CAB_MOD_QAM256; 2556 break; 2557 default: 2558 break; 2559 } 2560 2561 if (state->reinit_on_setfrontend) 2562 stv0367cab_init(fe); 2563 2564 /* Tuner Frequency Setting */ 2565 if (fe->ops.tuner_ops.set_params) { 2566 if (state->use_i2c_gatectrl && fe->ops.i2c_gate_ctrl) 2567 fe->ops.i2c_gate_ctrl(fe, 1); 2568 fe->ops.tuner_ops.set_params(fe); 2569 if (state->use_i2c_gatectrl && fe->ops.i2c_gate_ctrl) 2570 fe->ops.i2c_gate_ctrl(fe, 0); 2571 } 2572 2573 stv0367cab_SetQamSize( 2574 state, 2575 p->symbol_rate, 2576 QAMSize); 2577 2578 stv0367cab_set_srate(state, 2579 cab_state->adc_clk, 2580 cab_state->mclk, 2581 p->symbol_rate, 2582 QAMSize); 2583 /* Search algorithm launch, [-1.1*RangeOffset, +1.1*RangeOffset] scan */ 2584 cab_state->state = stv0367cab_algo(state, p); 2585 return 0; 2586 } 2587 2588 static int stv0367cab_get_frontend(struct dvb_frontend *fe, 2589 struct dtv_frontend_properties *p) 2590 { 2591 struct stv0367_state *state = fe->demodulator_priv; 2592 struct stv0367cab_state *cab_state = state->cab_state; 2593 u32 ifkhz = 0; 2594 2595 enum stv0367cab_mod QAMSize; 2596 2597 dprintk("%s:\n", __func__); 2598 2599 stv0367_get_if_khz(state, &ifkhz); 2600 p->symbol_rate = stv0367cab_GetSymbolRate(state, cab_state->mclk); 2601 2602 QAMSize = stv0367_readbits(state, F367CAB_QAM_MODE); 2603 switch (QAMSize) { 2604 case FE_CAB_MOD_QAM16: 2605 p->modulation = QAM_16; 2606 break; 2607 case FE_CAB_MOD_QAM32: 2608 p->modulation = QAM_32; 2609 break; 2610 case FE_CAB_MOD_QAM64: 2611 p->modulation = QAM_64; 2612 break; 2613 case FE_CAB_MOD_QAM128: 2614 p->modulation = QAM_128; 2615 break; 2616 case FE_CAB_MOD_QAM256: 2617 p->modulation = QAM_256; 2618 break; 2619 default: 2620 break; 2621 } 2622 2623 p->frequency = stv0367_get_tuner_freq(fe); 2624 2625 dprintk("%s: tuner frequency = %d\n", __func__, p->frequency); 2626 2627 if (ifkhz == 0) { 2628 p->frequency += 2629 (stv0367cab_get_derot_freq(state, cab_state->adc_clk) - 2630 cab_state->adc_clk / 4000); 2631 return 0; 2632 } 2633 2634 if (ifkhz > cab_state->adc_clk / 1000) 2635 p->frequency += (ifkhz 2636 - stv0367cab_get_derot_freq(state, cab_state->adc_clk) 2637 - cab_state->adc_clk / 1000); 2638 else 2639 p->frequency += (ifkhz 2640 - stv0367cab_get_derot_freq(state, cab_state->adc_clk)); 2641 2642 return 0; 2643 } 2644 2645 #if 0 2646 void stv0367cab_GetErrorCount(state, enum stv0367cab_mod QAMSize, 2647 u32 symbol_rate, FE_367qam_Monitor *Monitor_results) 2648 { 2649 stv0367cab_OptimiseNByteAndGetBER(state, QAMSize, symbol_rate, Monitor_results); 2650 stv0367cab_GetPacketsCount(state, Monitor_results); 2651 2652 return; 2653 } 2654 2655 static int stv0367cab_read_ber(struct dvb_frontend *fe, u32 *ber) 2656 { 2657 struct stv0367_state *state = fe->demodulator_priv; 2658 2659 return 0; 2660 } 2661 #endif 2662 static s32 stv0367cab_get_rf_lvl(struct stv0367_state *state) 2663 { 2664 s32 rfLevel = 0; 2665 s32 RfAgcPwm = 0, IfAgcPwm = 0; 2666 u8 i; 2667 2668 stv0367_writebits(state, F367CAB_STDBY_ADCGP, 0x0); 2669 2670 RfAgcPwm = 2671 (stv0367_readbits(state, F367CAB_RF_AGC1_LEVEL_LO) & 0x03) + 2672 (stv0367_readbits(state, F367CAB_RF_AGC1_LEVEL_HI) << 2); 2673 RfAgcPwm = 100 * RfAgcPwm / 1023; 2674 2675 IfAgcPwm = 2676 stv0367_readbits(state, F367CAB_AGC_IF_PWMCMD_LO) + 2677 (stv0367_readbits(state, F367CAB_AGC_IF_PWMCMD_HI) << 8); 2678 if (IfAgcPwm >= 2048) 2679 IfAgcPwm -= 2048; 2680 else 2681 IfAgcPwm += 2048; 2682 2683 IfAgcPwm = 100 * IfAgcPwm / 4095; 2684 2685 /* For DTT75467 on NIM */ 2686 if (RfAgcPwm < 90 && IfAgcPwm < 28) { 2687 for (i = 0; i < RF_LOOKUP_TABLE_SIZE; i++) { 2688 if (RfAgcPwm <= stv0367cab_RF_LookUp1[0][i]) { 2689 rfLevel = (-1) * stv0367cab_RF_LookUp1[1][i]; 2690 break; 2691 } 2692 } 2693 if (i == RF_LOOKUP_TABLE_SIZE) 2694 rfLevel = -56; 2695 } else { /*if IF AGC>10*/ 2696 for (i = 0; i < RF_LOOKUP_TABLE2_SIZE; i++) { 2697 if (IfAgcPwm <= stv0367cab_RF_LookUp2[0][i]) { 2698 rfLevel = (-1) * stv0367cab_RF_LookUp2[1][i]; 2699 break; 2700 } 2701 } 2702 if (i == RF_LOOKUP_TABLE2_SIZE) 2703 rfLevel = -72; 2704 } 2705 return rfLevel; 2706 } 2707 2708 static int stv0367cab_read_strength(struct dvb_frontend *fe, u16 *strength) 2709 { 2710 struct stv0367_state *state = fe->demodulator_priv; 2711 2712 s32 signal = stv0367cab_get_rf_lvl(state); 2713 2714 dprintk("%s: signal=%d dBm\n", __func__, signal); 2715 2716 if (signal <= -72) 2717 *strength = 65535; 2718 else 2719 *strength = (22 + signal) * (-1311); 2720 2721 dprintk("%s: strength=%d\n", __func__, (*strength)); 2722 2723 return 0; 2724 } 2725 2726 static int stv0367cab_snr_power(struct dvb_frontend *fe) 2727 { 2728 struct stv0367_state *state = fe->demodulator_priv; 2729 enum stv0367cab_mod QAMSize; 2730 2731 QAMSize = stv0367_readbits(state, F367CAB_QAM_MODE); 2732 switch (QAMSize) { 2733 case FE_CAB_MOD_QAM4: 2734 return 21904; 2735 case FE_CAB_MOD_QAM16: 2736 return 20480; 2737 case FE_CAB_MOD_QAM32: 2738 return 23040; 2739 case FE_CAB_MOD_QAM64: 2740 return 21504; 2741 case FE_CAB_MOD_QAM128: 2742 return 23616; 2743 case FE_CAB_MOD_QAM256: 2744 return 21760; 2745 case FE_CAB_MOD_QAM1024: 2746 return 21280; 2747 default: 2748 break; 2749 } 2750 2751 return 1; 2752 } 2753 2754 static int stv0367cab_snr_readreg(struct dvb_frontend *fe, int avgdiv) 2755 { 2756 struct stv0367_state *state = fe->demodulator_priv; 2757 u32 regval = 0; 2758 int i; 2759 2760 for (i = 0; i < 10; i++) { 2761 regval += (stv0367_readbits(state, F367CAB_SNR_LO) 2762 + 256 * stv0367_readbits(state, F367CAB_SNR_HI)); 2763 } 2764 2765 if (avgdiv) 2766 regval /= 10; 2767 2768 return regval; 2769 } 2770 2771 static int stv0367cab_read_snr(struct dvb_frontend *fe, u16 *snr) 2772 { 2773 struct stv0367_state *state = fe->demodulator_priv; 2774 u32 noisepercentage; 2775 u32 regval = 0, temp = 0; 2776 int power; 2777 2778 power = stv0367cab_snr_power(fe); 2779 regval = stv0367cab_snr_readreg(fe, 1); 2780 2781 if (regval != 0) { 2782 temp = power 2783 * (1 << (3 + stv0367_readbits(state, F367CAB_SNR_PER))); 2784 temp /= regval; 2785 } 2786 2787 /* table values, not needed to calculate logarithms */ 2788 if (temp >= 5012) 2789 noisepercentage = 100; 2790 else if (temp >= 3981) 2791 noisepercentage = 93; 2792 else if (temp >= 3162) 2793 noisepercentage = 86; 2794 else if (temp >= 2512) 2795 noisepercentage = 79; 2796 else if (temp >= 1995) 2797 noisepercentage = 72; 2798 else if (temp >= 1585) 2799 noisepercentage = 65; 2800 else if (temp >= 1259) 2801 noisepercentage = 58; 2802 else if (temp >= 1000) 2803 noisepercentage = 50; 2804 else if (temp >= 794) 2805 noisepercentage = 43; 2806 else if (temp >= 501) 2807 noisepercentage = 36; 2808 else if (temp >= 316) 2809 noisepercentage = 29; 2810 else if (temp >= 200) 2811 noisepercentage = 22; 2812 else if (temp >= 158) 2813 noisepercentage = 14; 2814 else if (temp >= 126) 2815 noisepercentage = 7; 2816 else 2817 noisepercentage = 0; 2818 2819 dprintk("%s: noisepercentage=%d\n", __func__, noisepercentage); 2820 2821 *snr = (noisepercentage * 65535) / 100; 2822 2823 return 0; 2824 } 2825 2826 static int stv0367cab_read_ucblcks(struct dvb_frontend *fe, u32 *ucblocks) 2827 { 2828 struct stv0367_state *state = fe->demodulator_priv; 2829 int corrected, tscount; 2830 2831 *ucblocks = (stv0367_readreg(state, R367CAB_RS_COUNTER_5) << 8) 2832 | stv0367_readreg(state, R367CAB_RS_COUNTER_4); 2833 corrected = (stv0367_readreg(state, R367CAB_RS_COUNTER_3) << 8) 2834 | stv0367_readreg(state, R367CAB_RS_COUNTER_2); 2835 tscount = (stv0367_readreg(state, R367CAB_RS_COUNTER_2) << 8) 2836 | stv0367_readreg(state, R367CAB_RS_COUNTER_1); 2837 2838 dprintk("%s: uncorrected blocks=%d corrected blocks=%d tscount=%d\n", 2839 __func__, *ucblocks, corrected, tscount); 2840 2841 return 0; 2842 }; 2843 2844 static const struct dvb_frontend_ops stv0367cab_ops = { 2845 .delsys = { SYS_DVBC_ANNEX_A }, 2846 .info = { 2847 .name = "ST STV0367 DVB-C", 2848 .frequency_min = 47000000, 2849 .frequency_max = 862000000, 2850 .frequency_stepsize = 62500, 2851 .symbol_rate_min = 870000, 2852 .symbol_rate_max = 11700000, 2853 .caps = 0x400 |/* FE_CAN_QAM_4 */ 2854 FE_CAN_QAM_16 | FE_CAN_QAM_32 | 2855 FE_CAN_QAM_64 | FE_CAN_QAM_128 | 2856 FE_CAN_QAM_256 | FE_CAN_FEC_AUTO 2857 }, 2858 .release = stv0367_release, 2859 .init = stv0367cab_init, 2860 .sleep = stv0367cab_sleep, 2861 .i2c_gate_ctrl = stv0367cab_gate_ctrl, 2862 .set_frontend = stv0367cab_set_frontend, 2863 .get_frontend = stv0367cab_get_frontend, 2864 .read_status = stv0367cab_read_status, 2865 /* .read_ber = stv0367cab_read_ber, */ 2866 .read_signal_strength = stv0367cab_read_strength, 2867 .read_snr = stv0367cab_read_snr, 2868 .read_ucblocks = stv0367cab_read_ucblcks, 2869 .get_tune_settings = stv0367_get_tune_settings, 2870 }; 2871 2872 struct dvb_frontend *stv0367cab_attach(const struct stv0367_config *config, 2873 struct i2c_adapter *i2c) 2874 { 2875 struct stv0367_state *state = NULL; 2876 struct stv0367cab_state *cab_state = NULL; 2877 2878 /* allocate memory for the internal state */ 2879 state = kzalloc(sizeof(struct stv0367_state), GFP_KERNEL); 2880 if (state == NULL) 2881 goto error; 2882 cab_state = kzalloc(sizeof(struct stv0367cab_state), GFP_KERNEL); 2883 if (cab_state == NULL) 2884 goto error; 2885 2886 /* setup the state */ 2887 state->i2c = i2c; 2888 state->config = config; 2889 cab_state->search_range = 280000; 2890 cab_state->qamfec_status_reg = F367CAB_QAMFEC_LOCK; 2891 state->cab_state = cab_state; 2892 state->fe.ops = stv0367cab_ops; 2893 state->fe.demodulator_priv = state; 2894 state->chip_id = stv0367_readreg(state, 0xf000); 2895 2896 /* demod operation options */ 2897 state->use_i2c_gatectrl = 1; 2898 state->deftabs = STV0367_DEFTAB_GENERIC; 2899 state->reinit_on_setfrontend = 1; 2900 state->auto_if_khz = 0; 2901 2902 dprintk("%s: chip_id = 0x%x\n", __func__, state->chip_id); 2903 2904 /* check if the demod is there */ 2905 if ((state->chip_id != 0x50) && (state->chip_id != 0x60)) 2906 goto error; 2907 2908 return &state->fe; 2909 2910 error: 2911 kfree(cab_state); 2912 kfree(state); 2913 return NULL; 2914 } 2915 EXPORT_SYMBOL(stv0367cab_attach); 2916 2917 /* 2918 * Functions for operation on Digital Devices hardware 2919 */ 2920 2921 static void stv0367ddb_setup_ter(struct stv0367_state *state) 2922 { 2923 stv0367_writereg(state, R367TER_DEBUG_LT4, 0x00); 2924 stv0367_writereg(state, R367TER_DEBUG_LT5, 0x00); 2925 stv0367_writereg(state, R367TER_DEBUG_LT6, 0x00); /* R367CAB_CTRL_1 */ 2926 stv0367_writereg(state, R367TER_DEBUG_LT7, 0x00); /* R367CAB_CTRL_2 */ 2927 stv0367_writereg(state, R367TER_DEBUG_LT8, 0x00); 2928 stv0367_writereg(state, R367TER_DEBUG_LT9, 0x00); 2929 2930 /* Tuner Setup */ 2931 /* Buffer Q disabled, I Enabled, unsigned ADC */ 2932 stv0367_writereg(state, R367TER_ANADIGCTRL, 0x89); 2933 stv0367_writereg(state, R367TER_DUAL_AD12, 0x04); /* ADCQ disabled */ 2934 2935 /* Clock setup */ 2936 /* PLL bypassed and disabled */ 2937 stv0367_writereg(state, R367TER_ANACTRL, 0x0D); 2938 stv0367_writereg(state, R367TER_TOPCTRL, 0x00); /* Set OFDM */ 2939 2940 /* IC runs at 54 MHz with a 27 MHz crystal */ 2941 stv0367_pll_setup(state, STV0367_ICSPEED_53125, state->config->xtal); 2942 2943 msleep(50); 2944 /* PLL enabled and used */ 2945 stv0367_writereg(state, R367TER_ANACTRL, 0x00); 2946 2947 state->activedemod = demod_ter; 2948 } 2949 2950 static void stv0367ddb_setup_cab(struct stv0367_state *state) 2951 { 2952 stv0367_writereg(state, R367TER_DEBUG_LT4, 0x00); 2953 stv0367_writereg(state, R367TER_DEBUG_LT5, 0x01); 2954 stv0367_writereg(state, R367TER_DEBUG_LT6, 0x06); /* R367CAB_CTRL_1 */ 2955 stv0367_writereg(state, R367TER_DEBUG_LT7, 0x03); /* R367CAB_CTRL_2 */ 2956 stv0367_writereg(state, R367TER_DEBUG_LT8, 0x00); 2957 stv0367_writereg(state, R367TER_DEBUG_LT9, 0x00); 2958 2959 /* Tuner Setup */ 2960 /* Buffer Q disabled, I Enabled, signed ADC */ 2961 stv0367_writereg(state, R367TER_ANADIGCTRL, 0x8B); 2962 /* ADCQ disabled */ 2963 stv0367_writereg(state, R367TER_DUAL_AD12, 0x04); 2964 2965 /* Clock setup */ 2966 /* PLL bypassed and disabled */ 2967 stv0367_writereg(state, R367TER_ANACTRL, 0x0D); 2968 /* Set QAM */ 2969 stv0367_writereg(state, R367TER_TOPCTRL, 0x10); 2970 2971 /* IC runs at 58 MHz with a 27 MHz crystal */ 2972 stv0367_pll_setup(state, STV0367_ICSPEED_58000, state->config->xtal); 2973 2974 msleep(50); 2975 /* PLL enabled and used */ 2976 stv0367_writereg(state, R367TER_ANACTRL, 0x00); 2977 2978 state->cab_state->mclk = stv0367cab_get_mclk(&state->fe, 2979 state->config->xtal); 2980 state->cab_state->adc_clk = stv0367cab_get_adc_freq(&state->fe, 2981 state->config->xtal); 2982 2983 state->activedemod = demod_cab; 2984 } 2985 2986 static int stv0367ddb_set_frontend(struct dvb_frontend *fe) 2987 { 2988 struct stv0367_state *state = fe->demodulator_priv; 2989 2990 switch (fe->dtv_property_cache.delivery_system) { 2991 case SYS_DVBT: 2992 if (state->activedemod != demod_ter) 2993 stv0367ddb_setup_ter(state); 2994 2995 return stv0367ter_set_frontend(fe); 2996 case SYS_DVBC_ANNEX_A: 2997 if (state->activedemod != demod_cab) 2998 stv0367ddb_setup_cab(state); 2999 3000 /* protect against division error oopses */ 3001 if (fe->dtv_property_cache.symbol_rate == 0) { 3002 printk(KERN_ERR "Invalid symbol rate\n"); 3003 return -EINVAL; 3004 } 3005 3006 return stv0367cab_set_frontend(fe); 3007 default: 3008 break; 3009 } 3010 3011 return -EINVAL; 3012 } 3013 3014 static void stv0367ddb_read_signal_strength(struct dvb_frontend *fe) 3015 { 3016 struct stv0367_state *state = fe->demodulator_priv; 3017 struct dtv_frontend_properties *p = &fe->dtv_property_cache; 3018 s32 signalstrength; 3019 3020 switch (state->activedemod) { 3021 case demod_cab: 3022 signalstrength = stv0367cab_get_rf_lvl(state) * 1000; 3023 break; 3024 default: 3025 p->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 3026 return; 3027 } 3028 3029 p->strength.stat[0].scale = FE_SCALE_DECIBEL; 3030 p->strength.stat[0].uvalue = signalstrength; 3031 } 3032 3033 static void stv0367ddb_read_snr(struct dvb_frontend *fe) 3034 { 3035 struct stv0367_state *state = fe->demodulator_priv; 3036 struct dtv_frontend_properties *p = &fe->dtv_property_cache; 3037 int cab_pwr; 3038 u32 regval, tmpval, snrval = 0; 3039 3040 switch (state->activedemod) { 3041 case demod_ter: 3042 snrval = stv0367ter_snr_readreg(fe); 3043 break; 3044 case demod_cab: 3045 cab_pwr = stv0367cab_snr_power(fe); 3046 regval = stv0367cab_snr_readreg(fe, 0); 3047 3048 /* prevent division by zero */ 3049 if (!regval) { 3050 snrval = 0; 3051 break; 3052 } 3053 3054 tmpval = (cab_pwr * 320) / regval; 3055 snrval = ((tmpval != 0) ? (intlog2(tmpval) / 5581) : 0); 3056 break; 3057 default: 3058 p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 3059 return; 3060 } 3061 3062 p->cnr.stat[0].scale = FE_SCALE_DECIBEL; 3063 p->cnr.stat[0].uvalue = snrval; 3064 } 3065 3066 static void stv0367ddb_read_ucblocks(struct dvb_frontend *fe) 3067 { 3068 struct stv0367_state *state = fe->demodulator_priv; 3069 struct dtv_frontend_properties *p = &fe->dtv_property_cache; 3070 u32 ucblocks = 0; 3071 3072 switch (state->activedemod) { 3073 case demod_ter: 3074 stv0367ter_read_ucblocks(fe, &ucblocks); 3075 break; 3076 case demod_cab: 3077 stv0367cab_read_ucblcks(fe, &ucblocks); 3078 break; 3079 default: 3080 p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 3081 return; 3082 } 3083 3084 p->block_error.stat[0].scale = FE_SCALE_COUNTER; 3085 p->block_error.stat[0].uvalue = ucblocks; 3086 } 3087 3088 static int stv0367ddb_read_status(struct dvb_frontend *fe, 3089 enum fe_status *status) 3090 { 3091 struct stv0367_state *state = fe->demodulator_priv; 3092 struct dtv_frontend_properties *p = &fe->dtv_property_cache; 3093 int ret; 3094 3095 switch (state->activedemod) { 3096 case demod_ter: 3097 ret = stv0367ter_read_status(fe, status); 3098 break; 3099 case demod_cab: 3100 ret = stv0367cab_read_status(fe, status); 3101 break; 3102 default: 3103 return 0; 3104 } 3105 3106 /* stop and report on *_read_status failure */ 3107 if (ret) 3108 return ret; 3109 3110 stv0367ddb_read_signal_strength(fe); 3111 3112 /* read carrier/noise when a carrier is detected */ 3113 if (*status & FE_HAS_CARRIER) 3114 stv0367ddb_read_snr(fe); 3115 else 3116 p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 3117 3118 /* read uncorrected blocks on FE_HAS_LOCK */ 3119 if (*status & FE_HAS_LOCK) 3120 stv0367ddb_read_ucblocks(fe); 3121 else 3122 p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 3123 3124 return 0; 3125 } 3126 3127 static int stv0367ddb_get_frontend(struct dvb_frontend *fe, 3128 struct dtv_frontend_properties *p) 3129 { 3130 struct stv0367_state *state = fe->demodulator_priv; 3131 3132 switch (state->activedemod) { 3133 case demod_ter: 3134 return stv0367ter_get_frontend(fe, p); 3135 case demod_cab: 3136 return stv0367cab_get_frontend(fe, p); 3137 default: 3138 break; 3139 } 3140 3141 return -EINVAL; 3142 } 3143 3144 static int stv0367ddb_sleep(struct dvb_frontend *fe) 3145 { 3146 struct stv0367_state *state = fe->demodulator_priv; 3147 3148 switch (state->activedemod) { 3149 case demod_ter: 3150 state->activedemod = demod_none; 3151 return stv0367ter_sleep(fe); 3152 case demod_cab: 3153 state->activedemod = demod_none; 3154 return stv0367cab_sleep(fe); 3155 default: 3156 break; 3157 } 3158 3159 return -EINVAL; 3160 } 3161 3162 static int stv0367ddb_init(struct stv0367_state *state) 3163 { 3164 struct stv0367ter_state *ter_state = state->ter_state; 3165 struct dtv_frontend_properties *p = &state->fe.dtv_property_cache; 3166 3167 stv0367_writereg(state, R367TER_TOPCTRL, 0x10); 3168 3169 if (stv0367_deftabs[state->deftabs][STV0367_TAB_BASE]) 3170 stv0367_write_table(state, 3171 stv0367_deftabs[state->deftabs][STV0367_TAB_BASE]); 3172 3173 stv0367_write_table(state, 3174 stv0367_deftabs[state->deftabs][STV0367_TAB_CAB]); 3175 3176 stv0367_writereg(state, R367TER_TOPCTRL, 0x00); 3177 stv0367_write_table(state, 3178 stv0367_deftabs[state->deftabs][STV0367_TAB_TER]); 3179 3180 stv0367_writereg(state, R367TER_GAIN_SRC1, 0x2A); 3181 stv0367_writereg(state, R367TER_GAIN_SRC2, 0xD6); 3182 stv0367_writereg(state, R367TER_INC_DEROT1, 0x55); 3183 stv0367_writereg(state, R367TER_INC_DEROT2, 0x55); 3184 stv0367_writereg(state, R367TER_TRL_CTL, 0x14); 3185 stv0367_writereg(state, R367TER_TRL_NOMRATE1, 0xAE); 3186 stv0367_writereg(state, R367TER_TRL_NOMRATE2, 0x56); 3187 stv0367_writereg(state, R367TER_FEPATH_CFG, 0x0); 3188 3189 /* OFDM TS Setup */ 3190 3191 stv0367_writereg(state, R367TER_TSCFGH, 0x70); 3192 stv0367_writereg(state, R367TER_TSCFGM, 0xC0); 3193 stv0367_writereg(state, R367TER_TSCFGL, 0x20); 3194 stv0367_writereg(state, R367TER_TSSPEED, 0x40); /* Fixed at 54 MHz */ 3195 3196 stv0367_writereg(state, R367TER_TSCFGH, 0x71); 3197 stv0367_writereg(state, R367TER_TSCFGH, 0x70); 3198 3199 stv0367_writereg(state, R367TER_TOPCTRL, 0x10); 3200 3201 /* Also needed for QAM */ 3202 stv0367_writereg(state, R367TER_AGC12C, 0x01); /* AGC Pin setup */ 3203 3204 stv0367_writereg(state, R367TER_AGCCTRL1, 0x8A); 3205 3206 /* QAM TS setup, note exact format also depends on descrambler */ 3207 /* settings */ 3208 /* Inverted Clock, Swap, serial */ 3209 stv0367_writereg(state, R367CAB_OUTFORMAT_0, 0x85); 3210 3211 /* Clock setup (PLL bypassed and disabled) */ 3212 stv0367_writereg(state, R367TER_ANACTRL, 0x0D); 3213 3214 /* IC runs at 58 MHz with a 27 MHz crystal */ 3215 stv0367_pll_setup(state, STV0367_ICSPEED_58000, state->config->xtal); 3216 3217 /* Tuner setup */ 3218 /* Buffer Q disabled, I Enabled, signed ADC */ 3219 stv0367_writereg(state, R367TER_ANADIGCTRL, 0x8b); 3220 stv0367_writereg(state, R367TER_DUAL_AD12, 0x04); /* ADCQ disabled */ 3221 3222 /* Improves the C/N lock limit */ 3223 stv0367_writereg(state, R367CAB_FSM_SNR2_HTH, 0x23); 3224 /* ZIF/IF Automatic mode */ 3225 stv0367_writereg(state, R367CAB_IQ_QAM, 0x01); 3226 /* Improving burst noise performances */ 3227 stv0367_writereg(state, R367CAB_EQU_FFE_LEAKAGE, 0x83); 3228 /* Improving ACI performances */ 3229 stv0367_writereg(state, R367CAB_IQDEM_ADJ_EN, 0x05); 3230 3231 /* PLL enabled and used */ 3232 stv0367_writereg(state, R367TER_ANACTRL, 0x00); 3233 3234 stv0367_writereg(state, R367TER_I2CRPT, (0x08 | ((5 & 0x07) << 4))); 3235 3236 ter_state->pBER = 0; 3237 ter_state->first_lock = 0; 3238 ter_state->unlock_counter = 2; 3239 3240 p->strength.len = 1; 3241 p->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 3242 p->cnr.len = 1; 3243 p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 3244 p->block_error.len = 1; 3245 p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 3246 3247 return 0; 3248 } 3249 3250 static const struct dvb_frontend_ops stv0367ddb_ops = { 3251 .delsys = { SYS_DVBC_ANNEX_A, SYS_DVBT }, 3252 .info = { 3253 .name = "ST STV0367 DDB DVB-C/T", 3254 .frequency_min = 47000000, 3255 .frequency_max = 865000000, 3256 .frequency_stepsize = 166667, 3257 .frequency_tolerance = 0, 3258 .symbol_rate_min = 870000, 3259 .symbol_rate_max = 11700000, 3260 .caps = /* DVB-C */ 3261 0x400 |/* FE_CAN_QAM_4 */ 3262 FE_CAN_QAM_16 | FE_CAN_QAM_32 | 3263 FE_CAN_QAM_64 | FE_CAN_QAM_128 | 3264 FE_CAN_QAM_256 | FE_CAN_QAM_AUTO | 3265 /* DVB-T */ 3266 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | 3267 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | 3268 FE_CAN_QPSK | FE_CAN_TRANSMISSION_MODE_AUTO | 3269 FE_CAN_RECOVER | FE_CAN_INVERSION_AUTO | 3270 FE_CAN_MUTE_TS 3271 }, 3272 .release = stv0367_release, 3273 .sleep = stv0367ddb_sleep, 3274 .i2c_gate_ctrl = stv0367cab_gate_ctrl, /* valid for TER and CAB */ 3275 .set_frontend = stv0367ddb_set_frontend, 3276 .get_frontend = stv0367ddb_get_frontend, 3277 .get_tune_settings = stv0367_get_tune_settings, 3278 .read_status = stv0367ddb_read_status, 3279 }; 3280 3281 struct dvb_frontend *stv0367ddb_attach(const struct stv0367_config *config, 3282 struct i2c_adapter *i2c) 3283 { 3284 struct stv0367_state *state = NULL; 3285 struct stv0367ter_state *ter_state = NULL; 3286 struct stv0367cab_state *cab_state = NULL; 3287 3288 /* allocate memory for the internal state */ 3289 state = kzalloc(sizeof(struct stv0367_state), GFP_KERNEL); 3290 if (state == NULL) 3291 goto error; 3292 ter_state = kzalloc(sizeof(struct stv0367ter_state), GFP_KERNEL); 3293 if (ter_state == NULL) 3294 goto error; 3295 cab_state = kzalloc(sizeof(struct stv0367cab_state), GFP_KERNEL); 3296 if (cab_state == NULL) 3297 goto error; 3298 3299 /* setup the state */ 3300 state->i2c = i2c; 3301 state->config = config; 3302 state->ter_state = ter_state; 3303 cab_state->search_range = 280000; 3304 cab_state->qamfec_status_reg = F367CAB_DESCR_SYNCSTATE; 3305 state->cab_state = cab_state; 3306 state->fe.ops = stv0367ddb_ops; 3307 state->fe.demodulator_priv = state; 3308 state->chip_id = stv0367_readreg(state, R367TER_ID); 3309 3310 /* demod operation options */ 3311 state->use_i2c_gatectrl = 0; 3312 state->deftabs = STV0367_DEFTAB_DDB; 3313 state->reinit_on_setfrontend = 0; 3314 state->auto_if_khz = 1; 3315 state->activedemod = demod_none; 3316 3317 dprintk("%s: chip_id = 0x%x\n", __func__, state->chip_id); 3318 3319 /* check if the demod is there */ 3320 if ((state->chip_id != 0x50) && (state->chip_id != 0x60)) 3321 goto error; 3322 3323 dev_info(&i2c->dev, "Found %s with ChipID %02X at adr %02X\n", 3324 state->fe.ops.info.name, state->chip_id, 3325 config->demod_address); 3326 3327 stv0367ddb_init(state); 3328 3329 return &state->fe; 3330 3331 error: 3332 kfree(cab_state); 3333 kfree(ter_state); 3334 kfree(state); 3335 return NULL; 3336 } 3337 EXPORT_SYMBOL(stv0367ddb_attach); 3338 3339 MODULE_PARM_DESC(debug, "Set debug"); 3340 MODULE_PARM_DESC(i2c_debug, "Set i2c debug"); 3341 3342 MODULE_AUTHOR("Igor M. Liplianin"); 3343 MODULE_DESCRIPTION("ST STV0367 DVB-C/T demodulator driver"); 3344 MODULE_LICENSE("GPL"); 3345