1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 Conexant cx24117/cx24132 - Dual DVBS/S2 Satellite demod/tuner driver 4 5 Copyright (C) 2013 Luis Alves <ljalvs@gmail.com> 6 July, 6th 2013 7 First release based on cx24116 driver by: 8 Steven Toth and Georg Acher, Darron Broad, Igor Liplianin 9 Cards currently supported: 10 TBS6980 - Dual DVBS/S2 PCIe card 11 TBS6981 - Dual DVBS/S2 PCIe card 12 13 */ 14 15 #include <linux/slab.h> 16 #include <linux/kernel.h> 17 #include <linux/module.h> 18 #include <linux/moduleparam.h> 19 #include <linux/init.h> 20 #include <linux/firmware.h> 21 22 #include "tuner-i2c.h" 23 #include <media/dvb_frontend.h> 24 #include "cx24117.h" 25 26 27 #define CX24117_DEFAULT_FIRMWARE "dvb-fe-cx24117.fw" 28 #define CX24117_SEARCH_RANGE_KHZ 5000 29 30 /* known registers */ 31 #define CX24117_REG_COMMAND (0x00) /* command buffer */ 32 #define CX24117_REG_EXECUTE (0x1f) /* execute command */ 33 34 #define CX24117_REG_FREQ3_0 (0x34) /* frequency */ 35 #define CX24117_REG_FREQ2_0 (0x35) 36 #define CX24117_REG_FREQ1_0 (0x36) 37 #define CX24117_REG_STATE0 (0x39) 38 #define CX24117_REG_SSTATUS0 (0x3a) /* demod0 signal high / status */ 39 #define CX24117_REG_SIGNAL0 (0x3b) 40 #define CX24117_REG_FREQ5_0 (0x3c) /* +-freq */ 41 #define CX24117_REG_FREQ6_0 (0x3d) 42 #define CX24117_REG_SRATE2_0 (0x3e) /* +- 1000 * srate */ 43 #define CX24117_REG_SRATE1_0 (0x3f) 44 #define CX24117_REG_QUALITY2_0 (0x40) 45 #define CX24117_REG_QUALITY1_0 (0x41) 46 47 #define CX24117_REG_BER4_0 (0x47) 48 #define CX24117_REG_BER3_0 (0x48) 49 #define CX24117_REG_BER2_0 (0x49) 50 #define CX24117_REG_BER1_0 (0x4a) 51 #define CX24117_REG_DVBS_UCB2_0 (0x4b) 52 #define CX24117_REG_DVBS_UCB1_0 (0x4c) 53 #define CX24117_REG_DVBS2_UCB2_0 (0x50) 54 #define CX24117_REG_DVBS2_UCB1_0 (0x51) 55 #define CX24117_REG_QSTATUS0 (0x93) 56 #define CX24117_REG_CLKDIV0 (0xe6) 57 #define CX24117_REG_RATEDIV0 (0xf0) 58 59 60 #define CX24117_REG_FREQ3_1 (0x55) /* frequency */ 61 #define CX24117_REG_FREQ2_1 (0x56) 62 #define CX24117_REG_FREQ1_1 (0x57) 63 #define CX24117_REG_STATE1 (0x5a) 64 #define CX24117_REG_SSTATUS1 (0x5b) /* demod1 signal high / status */ 65 #define CX24117_REG_SIGNAL1 (0x5c) 66 #define CX24117_REG_FREQ5_1 (0x5d) /* +- freq */ 67 #define CX24117_REG_FREQ4_1 (0x5e) 68 #define CX24117_REG_SRATE2_1 (0x5f) 69 #define CX24117_REG_SRATE1_1 (0x60) 70 #define CX24117_REG_QUALITY2_1 (0x61) 71 #define CX24117_REG_QUALITY1_1 (0x62) 72 #define CX24117_REG_BER4_1 (0x68) 73 #define CX24117_REG_BER3_1 (0x69) 74 #define CX24117_REG_BER2_1 (0x6a) 75 #define CX24117_REG_BER1_1 (0x6b) 76 #define CX24117_REG_DVBS_UCB2_1 (0x6c) 77 #define CX24117_REG_DVBS_UCB1_1 (0x6d) 78 #define CX24117_REG_DVBS2_UCB2_1 (0x71) 79 #define CX24117_REG_DVBS2_UCB1_1 (0x72) 80 #define CX24117_REG_QSTATUS1 (0x9f) 81 #define CX24117_REG_CLKDIV1 (0xe7) 82 #define CX24117_REG_RATEDIV1 (0xf1) 83 84 85 /* arg buffer size */ 86 #define CX24117_ARGLEN (0x1e) 87 88 /* rolloff */ 89 #define CX24117_ROLLOFF_020 (0x00) 90 #define CX24117_ROLLOFF_025 (0x01) 91 #define CX24117_ROLLOFF_035 (0x02) 92 93 /* pilot bit */ 94 #define CX24117_PILOT_OFF (0x00) 95 #define CX24117_PILOT_ON (0x40) 96 #define CX24117_PILOT_AUTO (0x80) 97 98 /* signal status */ 99 #define CX24117_HAS_SIGNAL (0x01) 100 #define CX24117_HAS_CARRIER (0x02) 101 #define CX24117_HAS_VITERBI (0x04) 102 #define CX24117_HAS_SYNCLOCK (0x08) 103 #define CX24117_STATUS_MASK (0x0f) 104 #define CX24117_SIGNAL_MASK (0xc0) 105 106 107 /* arg offset for DiSEqC */ 108 #define CX24117_DISEQC_DEMOD (1) 109 #define CX24117_DISEQC_BURST (2) 110 #define CX24117_DISEQC_ARG3_2 (3) /* unknown value=2 */ 111 #define CX24117_DISEQC_ARG4_0 (4) /* unknown value=0 */ 112 #define CX24117_DISEQC_ARG5_0 (5) /* unknown value=0 */ 113 #define CX24117_DISEQC_MSGLEN (6) 114 #define CX24117_DISEQC_MSGOFS (7) 115 116 /* DiSEqC burst */ 117 #define CX24117_DISEQC_MINI_A (0) 118 #define CX24117_DISEQC_MINI_B (1) 119 120 121 #define CX24117_PNE (0) /* 0 disabled / 2 enabled */ 122 #define CX24117_OCC (1) /* 0 disabled / 1 enabled */ 123 124 125 enum cmds { 126 CMD_SET_VCOFREQ = 0x10, 127 CMD_TUNEREQUEST = 0x11, 128 CMD_GLOBAL_MPEGCFG = 0x13, 129 CMD_MPEGCFG = 0x14, 130 CMD_TUNERINIT = 0x15, 131 CMD_GET_SRATE = 0x18, 132 CMD_SET_GOLDCODE = 0x19, 133 CMD_GET_AGCACC = 0x1a, 134 CMD_DEMODINIT = 0x1b, 135 CMD_GETCTLACC = 0x1c, 136 137 CMD_LNBCONFIG = 0x20, 138 CMD_LNBSEND = 0x21, 139 CMD_LNBDCLEVEL = 0x22, 140 CMD_LNBPCBCONFIG = 0x23, 141 CMD_LNBSENDTONEBST = 0x24, 142 CMD_LNBUPDREPLY = 0x25, 143 144 CMD_SET_GPIOMODE = 0x30, 145 CMD_SET_GPIOEN = 0x31, 146 CMD_SET_GPIODIR = 0x32, 147 CMD_SET_GPIOOUT = 0x33, 148 CMD_ENABLERSCORR = 0x34, 149 CMD_FWVERSION = 0x35, 150 CMD_SET_SLEEPMODE = 0x36, 151 CMD_BERCTRL = 0x3c, 152 CMD_EVENTCTRL = 0x3d, 153 }; 154 155 static LIST_HEAD(hybrid_tuner_instance_list); 156 static DEFINE_MUTEX(cx24117_list_mutex); 157 158 /* The Demod/Tuner can't easily provide these, we cache them */ 159 struct cx24117_tuning { 160 u32 frequency; 161 u32 symbol_rate; 162 enum fe_spectral_inversion inversion; 163 enum fe_code_rate fec; 164 165 enum fe_delivery_system delsys; 166 enum fe_modulation modulation; 167 enum fe_pilot pilot; 168 enum fe_rolloff rolloff; 169 170 /* Demod values */ 171 u8 fec_val; 172 u8 fec_mask; 173 u8 inversion_val; 174 u8 pilot_val; 175 u8 rolloff_val; 176 }; 177 178 /* Basic commands that are sent to the firmware */ 179 struct cx24117_cmd { 180 u8 len; 181 u8 args[CX24117_ARGLEN]; 182 }; 183 184 /* common to both fe's */ 185 struct cx24117_priv { 186 u8 demod_address; 187 struct i2c_adapter *i2c; 188 u8 skip_fw_load; 189 struct mutex fe_lock; 190 191 /* Used for sharing this struct between demods */ 192 struct tuner_i2c_props i2c_props; 193 struct list_head hybrid_tuner_instance_list; 194 }; 195 196 /* one per each fe */ 197 struct cx24117_state { 198 struct cx24117_priv *priv; 199 struct dvb_frontend frontend; 200 201 struct cx24117_tuning dcur; 202 struct cx24117_tuning dnxt; 203 struct cx24117_cmd dsec_cmd; 204 205 int demod; 206 }; 207 208 /* modfec (modulation and FEC) lookup table */ 209 /* Check cx24116.c for a detailed description of each field */ 210 static struct cx24117_modfec { 211 enum fe_delivery_system delivery_system; 212 enum fe_modulation modulation; 213 enum fe_code_rate fec; 214 u8 mask; /* In DVBS mode this is used to autodetect */ 215 u8 val; /* Passed to the firmware to indicate mode selection */ 216 } cx24117_modfec_modes[] = { 217 /* QPSK. For unknown rates we set hardware to auto detect 0xfe 0x30 */ 218 219 /*mod fec mask val */ 220 { SYS_DVBS, QPSK, FEC_NONE, 0xfe, 0x30 }, 221 { SYS_DVBS, QPSK, FEC_1_2, 0x02, 0x2e }, /* 00000010 00101110 */ 222 { SYS_DVBS, QPSK, FEC_2_3, 0x04, 0x2f }, /* 00000100 00101111 */ 223 { SYS_DVBS, QPSK, FEC_3_4, 0x08, 0x30 }, /* 00001000 00110000 */ 224 { SYS_DVBS, QPSK, FEC_4_5, 0xfe, 0x30 }, /* 000?0000 ? */ 225 { SYS_DVBS, QPSK, FEC_5_6, 0x20, 0x31 }, /* 00100000 00110001 */ 226 { SYS_DVBS, QPSK, FEC_6_7, 0xfe, 0x30 }, /* 0?000000 ? */ 227 { SYS_DVBS, QPSK, FEC_7_8, 0x80, 0x32 }, /* 10000000 00110010 */ 228 { SYS_DVBS, QPSK, FEC_8_9, 0xfe, 0x30 }, /* 0000000? ? */ 229 { SYS_DVBS, QPSK, FEC_AUTO, 0xfe, 0x30 }, 230 /* NBC-QPSK */ 231 { SYS_DVBS2, QPSK, FEC_NONE, 0x00, 0x00 }, 232 { SYS_DVBS2, QPSK, FEC_1_2, 0x00, 0x04 }, 233 { SYS_DVBS2, QPSK, FEC_3_5, 0x00, 0x05 }, 234 { SYS_DVBS2, QPSK, FEC_2_3, 0x00, 0x06 }, 235 { SYS_DVBS2, QPSK, FEC_3_4, 0x00, 0x07 }, 236 { SYS_DVBS2, QPSK, FEC_4_5, 0x00, 0x08 }, 237 { SYS_DVBS2, QPSK, FEC_5_6, 0x00, 0x09 }, 238 { SYS_DVBS2, QPSK, FEC_8_9, 0x00, 0x0a }, 239 { SYS_DVBS2, QPSK, FEC_9_10, 0x00, 0x0b }, 240 { SYS_DVBS2, QPSK, FEC_AUTO, 0x00, 0x00 }, 241 /* 8PSK */ 242 { SYS_DVBS2, PSK_8, FEC_NONE, 0x00, 0x00 }, 243 { SYS_DVBS2, PSK_8, FEC_3_5, 0x00, 0x0c }, 244 { SYS_DVBS2, PSK_8, FEC_2_3, 0x00, 0x0d }, 245 { SYS_DVBS2, PSK_8, FEC_3_4, 0x00, 0x0e }, 246 { SYS_DVBS2, PSK_8, FEC_5_6, 0x00, 0x0f }, 247 { SYS_DVBS2, PSK_8, FEC_8_9, 0x00, 0x10 }, 248 { SYS_DVBS2, PSK_8, FEC_9_10, 0x00, 0x11 }, 249 { SYS_DVBS2, PSK_8, FEC_AUTO, 0x00, 0x00 }, 250 /* 251 * 'val' can be found in the FECSTATUS register when tuning. 252 * FECSTATUS will give the actual FEC in use if tuning was successful. 253 */ 254 }; 255 256 257 static int cx24117_writereg(struct cx24117_state *state, u8 reg, u8 data) 258 { 259 u8 buf[] = { reg, data }; 260 struct i2c_msg msg = { .addr = state->priv->demod_address, 261 .flags = 0, .buf = buf, .len = 2 }; 262 int ret; 263 264 dev_dbg(&state->priv->i2c->dev, 265 "%s() demod%d i2c wr @0x%02x=0x%02x\n", 266 __func__, state->demod, reg, data); 267 268 ret = i2c_transfer(state->priv->i2c, &msg, 1); 269 if (ret < 0) { 270 dev_warn(&state->priv->i2c->dev, 271 "%s: demod%d i2c wr err(%i) @0x%02x=0x%02x\n", 272 KBUILD_MODNAME, state->demod, ret, reg, data); 273 return ret; 274 } 275 return 0; 276 } 277 278 static int cx24117_writecmd(struct cx24117_state *state, 279 struct cx24117_cmd *cmd) 280 { 281 struct i2c_msg msg; 282 u8 buf[CX24117_ARGLEN+1]; 283 int ret; 284 285 dev_dbg(&state->priv->i2c->dev, 286 "%s() demod%d i2c wr cmd len=%d\n", 287 __func__, state->demod, cmd->len); 288 289 buf[0] = CX24117_REG_COMMAND; 290 memcpy(&buf[1], cmd->args, cmd->len); 291 292 msg.addr = state->priv->demod_address; 293 msg.flags = 0; 294 msg.len = cmd->len+1; 295 msg.buf = buf; 296 ret = i2c_transfer(state->priv->i2c, &msg, 1); 297 if (ret < 0) { 298 dev_warn(&state->priv->i2c->dev, 299 "%s: demod%d i2c wr cmd err(%i) len=%d\n", 300 KBUILD_MODNAME, state->demod, ret, cmd->len); 301 return ret; 302 } 303 return 0; 304 } 305 306 static int cx24117_readreg(struct cx24117_state *state, u8 reg) 307 { 308 int ret; 309 u8 recv = 0; 310 struct i2c_msg msg[] = { 311 { .addr = state->priv->demod_address, .flags = 0, 312 .buf = ®, .len = 1 }, 313 { .addr = state->priv->demod_address, .flags = I2C_M_RD, 314 .buf = &recv, .len = 1 } 315 }; 316 317 ret = i2c_transfer(state->priv->i2c, msg, 2); 318 if (ret < 0) { 319 dev_warn(&state->priv->i2c->dev, 320 "%s: demod%d i2c rd err(%d) @0x%x\n", 321 KBUILD_MODNAME, state->demod, ret, reg); 322 return ret; 323 } 324 325 dev_dbg(&state->priv->i2c->dev, "%s() demod%d i2c rd @0x%02x=0x%02x\n", 326 __func__, state->demod, reg, recv); 327 328 return recv; 329 } 330 331 static int cx24117_readregN(struct cx24117_state *state, 332 u8 reg, u8 *buf, int len) 333 { 334 int ret; 335 struct i2c_msg msg[] = { 336 { .addr = state->priv->demod_address, .flags = 0, 337 .buf = ®, .len = 1 }, 338 { .addr = state->priv->demod_address, .flags = I2C_M_RD, 339 .buf = buf, .len = len } 340 }; 341 342 ret = i2c_transfer(state->priv->i2c, msg, 2); 343 if (ret < 0) { 344 dev_warn(&state->priv->i2c->dev, 345 "%s: demod%d i2c rd err(%d) @0x%x\n", 346 KBUILD_MODNAME, state->demod, ret, reg); 347 return ret; 348 } 349 return 0; 350 } 351 352 static int cx24117_set_inversion(struct cx24117_state *state, 353 enum fe_spectral_inversion inversion) 354 { 355 dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n", 356 __func__, inversion, state->demod); 357 358 switch (inversion) { 359 case INVERSION_OFF: 360 state->dnxt.inversion_val = 0x00; 361 break; 362 case INVERSION_ON: 363 state->dnxt.inversion_val = 0x04; 364 break; 365 case INVERSION_AUTO: 366 state->dnxt.inversion_val = 0x0C; 367 break; 368 default: 369 return -EINVAL; 370 } 371 372 state->dnxt.inversion = inversion; 373 374 return 0; 375 } 376 377 static int cx24117_lookup_fecmod(struct cx24117_state *state, 378 enum fe_delivery_system d, enum fe_modulation m, enum fe_code_rate f) 379 { 380 int i, ret = -EINVAL; 381 382 dev_dbg(&state->priv->i2c->dev, 383 "%s(demod(0x%02x,0x%02x) demod%d\n", 384 __func__, m, f, state->demod); 385 386 for (i = 0; i < ARRAY_SIZE(cx24117_modfec_modes); i++) { 387 if ((d == cx24117_modfec_modes[i].delivery_system) && 388 (m == cx24117_modfec_modes[i].modulation) && 389 (f == cx24117_modfec_modes[i].fec)) { 390 ret = i; 391 break; 392 } 393 } 394 395 return ret; 396 } 397 398 static int cx24117_set_fec(struct cx24117_state *state, 399 enum fe_delivery_system delsys, 400 enum fe_modulation mod, 401 enum fe_code_rate fec) 402 { 403 int ret; 404 405 dev_dbg(&state->priv->i2c->dev, 406 "%s(0x%02x,0x%02x) demod%d\n", 407 __func__, mod, fec, state->demod); 408 409 ret = cx24117_lookup_fecmod(state, delsys, mod, fec); 410 if (ret < 0) 411 return ret; 412 413 state->dnxt.fec = fec; 414 state->dnxt.fec_val = cx24117_modfec_modes[ret].val; 415 state->dnxt.fec_mask = cx24117_modfec_modes[ret].mask; 416 dev_dbg(&state->priv->i2c->dev, 417 "%s() demod%d mask/val = 0x%02x/0x%02x\n", __func__, 418 state->demod, state->dnxt.fec_mask, state->dnxt.fec_val); 419 420 return 0; 421 } 422 423 static int cx24117_set_symbolrate(struct cx24117_state *state, u32 rate) 424 { 425 dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n", 426 __func__, rate, state->demod); 427 428 state->dnxt.symbol_rate = rate; 429 430 dev_dbg(&state->priv->i2c->dev, 431 "%s() demod%d symbol_rate = %d\n", 432 __func__, state->demod, rate); 433 434 return 0; 435 } 436 437 static int cx24117_load_firmware(struct dvb_frontend *fe, 438 const struct firmware *fw); 439 440 static int cx24117_firmware_ondemand(struct dvb_frontend *fe) 441 { 442 struct cx24117_state *state = fe->demodulator_priv; 443 const struct firmware *fw; 444 int ret = 0; 445 446 dev_dbg(&state->priv->i2c->dev, "%s() demod%d skip_fw_load=%d\n", 447 __func__, state->demod, state->priv->skip_fw_load); 448 449 if (state->priv->skip_fw_load) 450 return 0; 451 452 /* check if firmware is already running */ 453 if (cx24117_readreg(state, 0xeb) != 0xa) { 454 /* Load firmware */ 455 /* request the firmware, this will block until loaded */ 456 dev_dbg(&state->priv->i2c->dev, 457 "%s: Waiting for firmware upload (%s)...\n", 458 __func__, CX24117_DEFAULT_FIRMWARE); 459 ret = request_firmware(&fw, CX24117_DEFAULT_FIRMWARE, 460 state->priv->i2c->dev.parent); 461 dev_dbg(&state->priv->i2c->dev, 462 "%s: Waiting for firmware upload(2)...\n", __func__); 463 if (ret) { 464 dev_err(&state->priv->i2c->dev, 465 "%s: No firmware uploaded (timeout or file not found?)\n", 466 __func__); 467 return ret; 468 } 469 470 /* Make sure we don't recurse back through here 471 * during loading */ 472 state->priv->skip_fw_load = 1; 473 474 ret = cx24117_load_firmware(fe, fw); 475 if (ret) 476 dev_err(&state->priv->i2c->dev, 477 "%s: Writing firmware failed\n", __func__); 478 release_firmware(fw); 479 480 dev_info(&state->priv->i2c->dev, 481 "%s: Firmware upload %s\n", __func__, 482 ret == 0 ? "complete" : "failed"); 483 484 /* Ensure firmware is always loaded if required */ 485 state->priv->skip_fw_load = 0; 486 } 487 488 return ret; 489 } 490 491 /* Take a basic firmware command structure, format it 492 * and forward it for processing 493 */ 494 static int cx24117_cmd_execute_nolock(struct dvb_frontend *fe, 495 struct cx24117_cmd *cmd) 496 { 497 struct cx24117_state *state = fe->demodulator_priv; 498 int i, ret; 499 500 dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", 501 __func__, state->demod); 502 503 /* Load the firmware if required */ 504 ret = cx24117_firmware_ondemand(fe); 505 if (ret != 0) 506 return ret; 507 508 /* Write the command */ 509 cx24117_writecmd(state, cmd); 510 511 /* Start execution and wait for cmd to terminate */ 512 cx24117_writereg(state, CX24117_REG_EXECUTE, 0x01); 513 i = 0; 514 while (cx24117_readreg(state, CX24117_REG_EXECUTE)) { 515 msleep(20); 516 if (i++ > 40) { 517 /* Avoid looping forever if the firmware does 518 not respond */ 519 dev_warn(&state->priv->i2c->dev, 520 "%s() Firmware not responding\n", __func__); 521 return -EIO; 522 } 523 } 524 return 0; 525 } 526 527 static int cx24117_cmd_execute(struct dvb_frontend *fe, struct cx24117_cmd *cmd) 528 { 529 struct cx24117_state *state = fe->demodulator_priv; 530 int ret; 531 532 mutex_lock(&state->priv->fe_lock); 533 ret = cx24117_cmd_execute_nolock(fe, cmd); 534 mutex_unlock(&state->priv->fe_lock); 535 536 return ret; 537 } 538 539 static int cx24117_load_firmware(struct dvb_frontend *fe, 540 const struct firmware *fw) 541 { 542 struct cx24117_state *state = fe->demodulator_priv; 543 struct cx24117_cmd cmd; 544 int i, ret; 545 unsigned char vers[4]; 546 547 struct i2c_msg msg; 548 u8 *buf; 549 550 dev_dbg(&state->priv->i2c->dev, 551 "%s() demod%d FW is %zu bytes (%02x %02x .. %02x %02x)\n", 552 __func__, state->demod, fw->size, fw->data[0], fw->data[1], 553 fw->data[fw->size - 2], fw->data[fw->size - 1]); 554 555 cx24117_writereg(state, 0xea, 0x00); 556 cx24117_writereg(state, 0xea, 0x01); 557 cx24117_writereg(state, 0xea, 0x00); 558 559 cx24117_writereg(state, 0xce, 0x92); 560 561 cx24117_writereg(state, 0xfb, 0x00); 562 cx24117_writereg(state, 0xfc, 0x00); 563 564 cx24117_writereg(state, 0xc3, 0x04); 565 cx24117_writereg(state, 0xc4, 0x04); 566 567 cx24117_writereg(state, 0xce, 0x00); 568 cx24117_writereg(state, 0xcf, 0x00); 569 570 cx24117_writereg(state, 0xea, 0x00); 571 cx24117_writereg(state, 0xeb, 0x0c); 572 cx24117_writereg(state, 0xec, 0x06); 573 cx24117_writereg(state, 0xed, 0x05); 574 cx24117_writereg(state, 0xee, 0x03); 575 cx24117_writereg(state, 0xef, 0x05); 576 577 cx24117_writereg(state, 0xf3, 0x03); 578 cx24117_writereg(state, 0xf4, 0x44); 579 580 cx24117_writereg(state, CX24117_REG_RATEDIV0, 0x04); 581 cx24117_writereg(state, CX24117_REG_CLKDIV0, 0x02); 582 583 cx24117_writereg(state, CX24117_REG_RATEDIV1, 0x04); 584 cx24117_writereg(state, CX24117_REG_CLKDIV1, 0x02); 585 586 cx24117_writereg(state, 0xf2, 0x04); 587 cx24117_writereg(state, 0xe8, 0x02); 588 cx24117_writereg(state, 0xea, 0x01); 589 cx24117_writereg(state, 0xc8, 0x00); 590 cx24117_writereg(state, 0xc9, 0x00); 591 cx24117_writereg(state, 0xca, 0x00); 592 cx24117_writereg(state, 0xcb, 0x00); 593 cx24117_writereg(state, 0xcc, 0x00); 594 cx24117_writereg(state, 0xcd, 0x00); 595 cx24117_writereg(state, 0xe4, 0x03); 596 cx24117_writereg(state, 0xeb, 0x0a); 597 598 cx24117_writereg(state, 0xfb, 0x00); 599 cx24117_writereg(state, 0xe0, 0x76); 600 cx24117_writereg(state, 0xf7, 0x81); 601 cx24117_writereg(state, 0xf8, 0x00); 602 cx24117_writereg(state, 0xf9, 0x00); 603 604 buf = kmalloc(fw->size + 1, GFP_KERNEL); 605 if (buf == NULL) { 606 state->priv->skip_fw_load = 0; 607 return -ENOMEM; 608 } 609 610 /* fw upload reg */ 611 buf[0] = 0xfa; 612 memcpy(&buf[1], fw->data, fw->size); 613 614 /* prepare i2c message to send */ 615 msg.addr = state->priv->demod_address; 616 msg.flags = 0; 617 msg.len = fw->size + 1; 618 msg.buf = buf; 619 620 /* send fw */ 621 ret = i2c_transfer(state->priv->i2c, &msg, 1); 622 if (ret < 0) { 623 kfree(buf); 624 return ret; 625 } 626 627 kfree(buf); 628 629 cx24117_writereg(state, 0xf7, 0x0c); 630 cx24117_writereg(state, 0xe0, 0x00); 631 632 /* Init demodulator */ 633 cmd.args[0] = CMD_DEMODINIT; 634 cmd.args[1] = 0x00; 635 cmd.args[2] = 0x01; 636 cmd.args[3] = 0x00; 637 cmd.len = 4; 638 ret = cx24117_cmd_execute_nolock(fe, &cmd); 639 if (ret != 0) 640 goto error; 641 642 /* Set VCO frequency */ 643 cmd.args[0] = CMD_SET_VCOFREQ; 644 cmd.args[1] = 0x06; 645 cmd.args[2] = 0x2b; 646 cmd.args[3] = 0xd8; 647 cmd.args[4] = 0xa5; 648 cmd.args[5] = 0xee; 649 cmd.args[6] = 0x03; 650 cmd.args[7] = 0x9d; 651 cmd.args[8] = 0xfc; 652 cmd.args[9] = 0x06; 653 cmd.args[10] = 0x02; 654 cmd.args[11] = 0x9d; 655 cmd.args[12] = 0xfc; 656 cmd.len = 13; 657 ret = cx24117_cmd_execute_nolock(fe, &cmd); 658 if (ret != 0) 659 goto error; 660 661 /* Tuner init */ 662 cmd.args[0] = CMD_TUNERINIT; 663 cmd.args[1] = 0x00; 664 cmd.args[2] = 0x01; 665 cmd.args[3] = 0x00; 666 cmd.args[4] = 0x00; 667 cmd.args[5] = 0x01; 668 cmd.args[6] = 0x01; 669 cmd.args[7] = 0x01; 670 cmd.args[8] = 0x00; 671 cmd.args[9] = 0x05; 672 cmd.args[10] = 0x02; 673 cmd.args[11] = 0x02; 674 cmd.args[12] = 0x00; 675 cmd.len = 13; 676 ret = cx24117_cmd_execute_nolock(fe, &cmd); 677 if (ret != 0) 678 goto error; 679 680 /* Global MPEG config */ 681 cmd.args[0] = CMD_GLOBAL_MPEGCFG; 682 cmd.args[1] = 0x00; 683 cmd.args[2] = 0x00; 684 cmd.args[3] = 0x00; 685 cmd.args[4] = 0x01; 686 cmd.args[5] = 0x00; 687 cmd.len = 6; 688 ret = cx24117_cmd_execute_nolock(fe, &cmd); 689 if (ret != 0) 690 goto error; 691 692 /* MPEG config for each demod */ 693 for (i = 0; i < 2; i++) { 694 cmd.args[0] = CMD_MPEGCFG; 695 cmd.args[1] = (u8) i; 696 cmd.args[2] = 0x00; 697 cmd.args[3] = 0x05; 698 cmd.args[4] = 0x00; 699 cmd.args[5] = 0x00; 700 cmd.args[6] = 0x55; 701 cmd.args[7] = 0x00; 702 cmd.len = 8; 703 ret = cx24117_cmd_execute_nolock(fe, &cmd); 704 if (ret != 0) 705 goto error; 706 } 707 708 cx24117_writereg(state, 0xce, 0xc0); 709 cx24117_writereg(state, 0xcf, 0x00); 710 cx24117_writereg(state, 0xe5, 0x04); 711 712 /* Get firmware version */ 713 cmd.args[0] = CMD_FWVERSION; 714 cmd.len = 2; 715 for (i = 0; i < 4; i++) { 716 cmd.args[1] = i; 717 ret = cx24117_cmd_execute_nolock(fe, &cmd); 718 if (ret != 0) 719 goto error; 720 vers[i] = cx24117_readreg(state, 0x33); 721 } 722 dev_info(&state->priv->i2c->dev, 723 "%s: FW version %i.%i.%i.%i\n", __func__, 724 vers[0], vers[1], vers[2], vers[3]); 725 return 0; 726 error: 727 state->priv->skip_fw_load = 0; 728 dev_err(&state->priv->i2c->dev, "%s() Error running FW.\n", __func__); 729 return ret; 730 } 731 732 static int cx24117_read_status(struct dvb_frontend *fe, enum fe_status *status) 733 { 734 struct cx24117_state *state = fe->demodulator_priv; 735 int lock; 736 737 lock = cx24117_readreg(state, 738 (state->demod == 0) ? CX24117_REG_SSTATUS0 : 739 CX24117_REG_SSTATUS1) & 740 CX24117_STATUS_MASK; 741 742 dev_dbg(&state->priv->i2c->dev, "%s() demod%d status = 0x%02x\n", 743 __func__, state->demod, lock); 744 745 *status = 0; 746 747 if (lock & CX24117_HAS_SIGNAL) 748 *status |= FE_HAS_SIGNAL; 749 if (lock & CX24117_HAS_CARRIER) 750 *status |= FE_HAS_CARRIER; 751 if (lock & CX24117_HAS_VITERBI) 752 *status |= FE_HAS_VITERBI; 753 if (lock & CX24117_HAS_SYNCLOCK) 754 *status |= FE_HAS_SYNC | FE_HAS_LOCK; 755 756 return 0; 757 } 758 759 static int cx24117_read_ber(struct dvb_frontend *fe, u32 *ber) 760 { 761 struct cx24117_state *state = fe->demodulator_priv; 762 int ret; 763 u8 buf[4]; 764 u8 base_reg = (state->demod == 0) ? 765 CX24117_REG_BER4_0 : 766 CX24117_REG_BER4_1; 767 768 ret = cx24117_readregN(state, base_reg, buf, 4); 769 if (ret != 0) 770 return ret; 771 772 *ber = (buf[0] << 24) | (buf[1] << 16) | 773 (buf[1] << 8) | buf[0]; 774 775 dev_dbg(&state->priv->i2c->dev, "%s() demod%d ber=0x%04x\n", 776 __func__, state->demod, *ber); 777 778 return 0; 779 } 780 781 static int cx24117_read_signal_strength(struct dvb_frontend *fe, 782 u16 *signal_strength) 783 { 784 struct cx24117_state *state = fe->demodulator_priv; 785 struct cx24117_cmd cmd; 786 int ret; 787 u16 sig_reading; 788 u8 buf[2]; 789 u8 reg = (state->demod == 0) ? 790 CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1; 791 792 /* Read AGC accumulator register */ 793 cmd.args[0] = CMD_GET_AGCACC; 794 cmd.args[1] = (u8) state->demod; 795 cmd.len = 2; 796 ret = cx24117_cmd_execute(fe, &cmd); 797 if (ret != 0) 798 return ret; 799 800 ret = cx24117_readregN(state, reg, buf, 2); 801 if (ret != 0) 802 return ret; 803 sig_reading = ((buf[0] & CX24117_SIGNAL_MASK) << 2) | buf[1]; 804 805 *signal_strength = -100 * sig_reading + 94324; 806 807 dev_dbg(&state->priv->i2c->dev, 808 "%s() demod%d raw / cooked = 0x%04x / 0x%04x\n", 809 __func__, state->demod, sig_reading, *signal_strength); 810 811 return 0; 812 } 813 814 static int cx24117_read_snr(struct dvb_frontend *fe, u16 *snr) 815 { 816 struct cx24117_state *state = fe->demodulator_priv; 817 int ret; 818 u8 buf[2]; 819 u8 reg = (state->demod == 0) ? 820 CX24117_REG_QUALITY2_0 : CX24117_REG_QUALITY2_1; 821 822 ret = cx24117_readregN(state, reg, buf, 2); 823 if (ret != 0) 824 return ret; 825 826 *snr = (buf[0] << 8) | buf[1]; 827 828 dev_dbg(&state->priv->i2c->dev, 829 "%s() demod%d snr = 0x%04x\n", 830 __func__, state->demod, *snr); 831 832 return ret; 833 } 834 835 static int cx24117_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) 836 { 837 struct cx24117_state *state = fe->demodulator_priv; 838 enum fe_delivery_system delsys = fe->dtv_property_cache.delivery_system; 839 int ret; 840 u8 buf[2]; 841 u8 reg = (state->demod == 0) ? 842 CX24117_REG_DVBS_UCB2_0 : 843 CX24117_REG_DVBS_UCB2_1; 844 845 switch (delsys) { 846 case SYS_DVBS: 847 break; 848 case SYS_DVBS2: 849 reg += (CX24117_REG_DVBS2_UCB2_0 - CX24117_REG_DVBS_UCB2_0); 850 break; 851 default: 852 return -EINVAL; 853 } 854 855 ret = cx24117_readregN(state, reg, buf, 2); 856 if (ret != 0) 857 return ret; 858 *ucblocks = (buf[0] << 8) | buf[1]; 859 860 dev_dbg(&state->priv->i2c->dev, "%s() demod%d ucb=0x%04x\n", 861 __func__, state->demod, *ucblocks); 862 863 return 0; 864 } 865 866 /* Overwrite the current tuning params, we are about to tune */ 867 static void cx24117_clone_params(struct dvb_frontend *fe) 868 { 869 struct cx24117_state *state = fe->demodulator_priv; 870 state->dcur = state->dnxt; 871 } 872 873 /* Wait for LNB */ 874 static int cx24117_wait_for_lnb(struct dvb_frontend *fe) 875 { 876 struct cx24117_state *state = fe->demodulator_priv; 877 int i; 878 u8 val, reg = (state->demod == 0) ? CX24117_REG_QSTATUS0 : 879 CX24117_REG_QSTATUS1; 880 881 dev_dbg(&state->priv->i2c->dev, "%s() demod%d qstatus = 0x%02x\n", 882 __func__, state->demod, cx24117_readreg(state, reg)); 883 884 /* Wait for up to 300 ms */ 885 for (i = 0; i < 10; i++) { 886 val = cx24117_readreg(state, reg) & 0x01; 887 if (val != 0) 888 return 0; 889 msleep(30); 890 } 891 892 dev_warn(&state->priv->i2c->dev, "%s: demod%d LNB not ready\n", 893 KBUILD_MODNAME, state->demod); 894 895 return -ETIMEDOUT; /* -EBUSY ? */ 896 } 897 898 static int cx24117_set_voltage(struct dvb_frontend *fe, 899 enum fe_sec_voltage voltage) 900 { 901 struct cx24117_state *state = fe->demodulator_priv; 902 struct cx24117_cmd cmd; 903 int ret; 904 u8 reg = (state->demod == 0) ? 0x10 : 0x20; 905 906 dev_dbg(&state->priv->i2c->dev, "%s() demod%d %s\n", 907 __func__, state->demod, 908 voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" : 909 voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : 910 "SEC_VOLTAGE_OFF"); 911 912 /* Prepare a set GPIO logic level CMD */ 913 cmd.args[0] = CMD_SET_GPIOOUT; 914 cmd.args[2] = reg; /* mask */ 915 cmd.len = 3; 916 917 if ((voltage == SEC_VOLTAGE_13) || 918 (voltage == SEC_VOLTAGE_18)) { 919 /* power on LNB */ 920 cmd.args[1] = reg; 921 ret = cx24117_cmd_execute(fe, &cmd); 922 if (ret != 0) 923 return ret; 924 925 ret = cx24117_wait_for_lnb(fe); 926 if (ret != 0) 927 return ret; 928 929 /* Wait for voltage/min repeat delay */ 930 msleep(100); 931 932 /* Set 13V/18V select pin */ 933 cmd.args[0] = CMD_LNBDCLEVEL; 934 cmd.args[1] = state->demod ? 0 : 1; 935 cmd.args[2] = (voltage == SEC_VOLTAGE_18 ? 0x01 : 0x00); 936 cmd.len = 3; 937 ret = cx24117_cmd_execute(fe, &cmd); 938 939 /* Min delay time before DiSEqC send */ 940 msleep(20); 941 } else { 942 /* power off LNB */ 943 cmd.args[1] = 0x00; 944 ret = cx24117_cmd_execute(fe, &cmd); 945 } 946 947 return ret; 948 } 949 950 static int cx24117_set_tone(struct dvb_frontend *fe, 951 enum fe_sec_tone_mode tone) 952 { 953 struct cx24117_state *state = fe->demodulator_priv; 954 struct cx24117_cmd cmd; 955 int ret; 956 957 dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n", 958 __func__, state->demod, tone); 959 if ((tone != SEC_TONE_ON) && (tone != SEC_TONE_OFF)) { 960 dev_warn(&state->priv->i2c->dev, "%s: demod%d invalid tone=%d\n", 961 KBUILD_MODNAME, state->demod, tone); 962 return -EINVAL; 963 } 964 965 /* Wait for LNB ready */ 966 ret = cx24117_wait_for_lnb(fe); 967 if (ret != 0) 968 return ret; 969 970 /* Min delay time after DiSEqC send */ 971 msleep(20); 972 973 /* Set the tone */ 974 cmd.args[0] = CMD_LNBPCBCONFIG; 975 cmd.args[1] = (state->demod ? 0 : 1); 976 cmd.args[2] = 0x00; 977 cmd.args[3] = 0x00; 978 cmd.len = 5; 979 switch (tone) { 980 case SEC_TONE_ON: 981 cmd.args[4] = 0x01; 982 break; 983 case SEC_TONE_OFF: 984 cmd.args[4] = 0x00; 985 break; 986 } 987 988 msleep(20); 989 990 return cx24117_cmd_execute(fe, &cmd); 991 } 992 993 /* Initialise DiSEqC */ 994 static int cx24117_diseqc_init(struct dvb_frontend *fe) 995 { 996 struct cx24117_state *state = fe->demodulator_priv; 997 998 /* Prepare a DiSEqC command */ 999 state->dsec_cmd.args[0] = CMD_LNBSEND; 1000 1001 /* demod */ 1002 state->dsec_cmd.args[CX24117_DISEQC_DEMOD] = state->demod ? 0 : 1; 1003 1004 /* DiSEqC burst */ 1005 state->dsec_cmd.args[CX24117_DISEQC_BURST] = CX24117_DISEQC_MINI_A; 1006 1007 /* Unknown */ 1008 state->dsec_cmd.args[CX24117_DISEQC_ARG3_2] = 0x02; 1009 state->dsec_cmd.args[CX24117_DISEQC_ARG4_0] = 0x00; 1010 1011 /* Continuation flag? */ 1012 state->dsec_cmd.args[CX24117_DISEQC_ARG5_0] = 0x00; 1013 1014 /* DiSEqC message length */ 1015 state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = 0x00; 1016 1017 /* Command length */ 1018 state->dsec_cmd.len = 7; 1019 1020 return 0; 1021 } 1022 1023 /* Send DiSEqC message */ 1024 static int cx24117_send_diseqc_msg(struct dvb_frontend *fe, 1025 struct dvb_diseqc_master_cmd *d) 1026 { 1027 struct cx24117_state *state = fe->demodulator_priv; 1028 int i, ret; 1029 1030 /* Dump DiSEqC message */ 1031 dev_dbg(&state->priv->i2c->dev, "%s: demod %d (", 1032 __func__, state->demod); 1033 for (i = 0; i < d->msg_len; i++) 1034 dev_dbg(&state->priv->i2c->dev, "0x%02x ", d->msg[i]); 1035 dev_dbg(&state->priv->i2c->dev, ")\n"); 1036 1037 /* Validate length */ 1038 if (d->msg_len > sizeof(d->msg)) 1039 return -EINVAL; 1040 1041 /* DiSEqC message */ 1042 for (i = 0; i < d->msg_len; i++) 1043 state->dsec_cmd.args[CX24117_DISEQC_MSGOFS + i] = d->msg[i]; 1044 1045 /* DiSEqC message length */ 1046 state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = d->msg_len; 1047 1048 /* Command length */ 1049 state->dsec_cmd.len = CX24117_DISEQC_MSGOFS + 1050 state->dsec_cmd.args[CX24117_DISEQC_MSGLEN]; 1051 1052 /* 1053 * Message is sent with derived else cached burst 1054 * 1055 * WRITE PORT GROUP COMMAND 38 1056 * 1057 * 0/A/A: E0 10 38 F0..F3 1058 * 1/B/B: E0 10 38 F4..F7 1059 * 2/C/A: E0 10 38 F8..FB 1060 * 3/D/B: E0 10 38 FC..FF 1061 * 1062 * databyte[3]= 8421:8421 1063 * ABCD:WXYZ 1064 * CLR :SET 1065 * 1066 * WX= PORT SELECT 0..3 (X=TONEBURST) 1067 * Y = VOLTAGE (0=13V, 1=18V) 1068 * Z = BAND (0=LOW, 1=HIGH(22K)) 1069 */ 1070 if (d->msg_len >= 4 && d->msg[2] == 0x38) 1071 state->dsec_cmd.args[CX24117_DISEQC_BURST] = 1072 ((d->msg[3] & 4) >> 2); 1073 1074 dev_dbg(&state->priv->i2c->dev, "%s() demod%d burst=%d\n", 1075 __func__, state->demod, 1076 state->dsec_cmd.args[CX24117_DISEQC_BURST]); 1077 1078 /* Wait for LNB ready */ 1079 ret = cx24117_wait_for_lnb(fe); 1080 if (ret != 0) 1081 return ret; 1082 1083 /* Wait for voltage/min repeat delay */ 1084 msleep(100); 1085 1086 /* Command */ 1087 ret = cx24117_cmd_execute(fe, &state->dsec_cmd); 1088 if (ret != 0) 1089 return ret; 1090 /* 1091 * Wait for send 1092 * 1093 * Eutelsat spec: 1094 * >15ms delay + (XXX determine if FW does this, see set_tone) 1095 * 13.5ms per byte + 1096 * >15ms delay + 1097 * 12.5ms burst + 1098 * >15ms delay (XXX determine if FW does this, see set_tone) 1099 */ 1100 msleep((state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] << 4) + 60); 1101 1102 return 0; 1103 } 1104 1105 /* Send DiSEqC burst */ 1106 static int cx24117_diseqc_send_burst(struct dvb_frontend *fe, 1107 enum fe_sec_mini_cmd burst) 1108 { 1109 struct cx24117_state *state = fe->demodulator_priv; 1110 1111 dev_dbg(&state->priv->i2c->dev, "%s(%d) demod=%d\n", 1112 __func__, burst, state->demod); 1113 1114 /* DiSEqC burst */ 1115 if (burst == SEC_MINI_A) 1116 state->dsec_cmd.args[CX24117_DISEQC_BURST] = 1117 CX24117_DISEQC_MINI_A; 1118 else if (burst == SEC_MINI_B) 1119 state->dsec_cmd.args[CX24117_DISEQC_BURST] = 1120 CX24117_DISEQC_MINI_B; 1121 else 1122 return -EINVAL; 1123 1124 return 0; 1125 } 1126 1127 static int cx24117_get_priv(struct cx24117_priv **priv, 1128 struct i2c_adapter *i2c, u8 client_address) 1129 { 1130 int ret; 1131 1132 mutex_lock(&cx24117_list_mutex); 1133 ret = hybrid_tuner_request_state(struct cx24117_priv, (*priv), 1134 hybrid_tuner_instance_list, i2c, client_address, "cx24117"); 1135 mutex_unlock(&cx24117_list_mutex); 1136 1137 return ret; 1138 } 1139 1140 static void cx24117_release_priv(struct cx24117_priv *priv) 1141 { 1142 mutex_lock(&cx24117_list_mutex); 1143 if (priv != NULL) 1144 hybrid_tuner_release_state(priv); 1145 mutex_unlock(&cx24117_list_mutex); 1146 } 1147 1148 static void cx24117_release(struct dvb_frontend *fe) 1149 { 1150 struct cx24117_state *state = fe->demodulator_priv; 1151 dev_dbg(&state->priv->i2c->dev, "%s demod%d\n", 1152 __func__, state->demod); 1153 cx24117_release_priv(state->priv); 1154 kfree(state); 1155 } 1156 1157 static const struct dvb_frontend_ops cx24117_ops; 1158 1159 struct dvb_frontend *cx24117_attach(const struct cx24117_config *config, 1160 struct i2c_adapter *i2c) 1161 { 1162 struct cx24117_state *state = NULL; 1163 struct cx24117_priv *priv = NULL; 1164 int demod = 0; 1165 1166 /* get the common data struct for both demods */ 1167 demod = cx24117_get_priv(&priv, i2c, config->demod_address); 1168 1169 switch (demod) { 1170 case 0: 1171 dev_err(&i2c->dev, 1172 "%s: Error attaching frontend %d\n", 1173 KBUILD_MODNAME, demod); 1174 goto error1; 1175 case 1: 1176 /* new priv instance */ 1177 priv->i2c = i2c; 1178 priv->demod_address = config->demod_address; 1179 mutex_init(&priv->fe_lock); 1180 break; 1181 default: 1182 /* existing priv instance */ 1183 break; 1184 } 1185 1186 /* allocate memory for the internal state */ 1187 state = kzalloc(sizeof(struct cx24117_state), GFP_KERNEL); 1188 if (state == NULL) 1189 goto error2; 1190 1191 state->demod = demod - 1; 1192 state->priv = priv; 1193 1194 dev_info(&state->priv->i2c->dev, 1195 "%s: Attaching frontend %d\n", 1196 KBUILD_MODNAME, state->demod); 1197 1198 /* create dvb_frontend */ 1199 memcpy(&state->frontend.ops, &cx24117_ops, 1200 sizeof(struct dvb_frontend_ops)); 1201 state->frontend.demodulator_priv = state; 1202 return &state->frontend; 1203 1204 error2: 1205 cx24117_release_priv(priv); 1206 error1: 1207 return NULL; 1208 } 1209 EXPORT_SYMBOL_GPL(cx24117_attach); 1210 1211 /* 1212 * Initialise or wake up device 1213 * 1214 * Power config will reset and load initial firmware if required 1215 */ 1216 static int cx24117_initfe(struct dvb_frontend *fe) 1217 { 1218 struct cx24117_state *state = fe->demodulator_priv; 1219 struct cx24117_cmd cmd; 1220 int ret; 1221 1222 dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", 1223 __func__, state->demod); 1224 1225 mutex_lock(&state->priv->fe_lock); 1226 1227 /* Set sleep mode off */ 1228 cmd.args[0] = CMD_SET_SLEEPMODE; 1229 cmd.args[1] = (state->demod ? 1 : 0); 1230 cmd.args[2] = 0; 1231 cmd.len = 3; 1232 ret = cx24117_cmd_execute_nolock(fe, &cmd); 1233 if (ret != 0) 1234 goto exit; 1235 1236 ret = cx24117_diseqc_init(fe); 1237 if (ret != 0) 1238 goto exit; 1239 1240 /* Set BER control */ 1241 cmd.args[0] = CMD_BERCTRL; 1242 cmd.args[1] = (state->demod ? 1 : 0); 1243 cmd.args[2] = 0x10; 1244 cmd.args[3] = 0x10; 1245 cmd.len = 4; 1246 ret = cx24117_cmd_execute_nolock(fe, &cmd); 1247 if (ret != 0) 1248 goto exit; 1249 1250 /* Set RS correction (enable/disable) */ 1251 cmd.args[0] = CMD_ENABLERSCORR; 1252 cmd.args[1] = (state->demod ? 1 : 0); 1253 cmd.args[2] = CX24117_OCC; 1254 cmd.len = 3; 1255 ret = cx24117_cmd_execute_nolock(fe, &cmd); 1256 if (ret != 0) 1257 goto exit; 1258 1259 /* Set GPIO direction */ 1260 /* Set as output - controls LNB power on/off */ 1261 cmd.args[0] = CMD_SET_GPIODIR; 1262 cmd.args[1] = 0x30; 1263 cmd.args[2] = 0x30; 1264 cmd.len = 3; 1265 ret = cx24117_cmd_execute_nolock(fe, &cmd); 1266 1267 exit: 1268 mutex_unlock(&state->priv->fe_lock); 1269 1270 return ret; 1271 } 1272 1273 /* 1274 * Put device to sleep 1275 */ 1276 static int cx24117_sleep(struct dvb_frontend *fe) 1277 { 1278 struct cx24117_state *state = fe->demodulator_priv; 1279 struct cx24117_cmd cmd; 1280 1281 dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", 1282 __func__, state->demod); 1283 1284 /* Set sleep mode on */ 1285 cmd.args[0] = CMD_SET_SLEEPMODE; 1286 cmd.args[1] = (state->demod ? 1 : 0); 1287 cmd.args[2] = 1; 1288 cmd.len = 3; 1289 return cx24117_cmd_execute(fe, &cmd); 1290 } 1291 1292 /* dvb-core told us to tune, the tv property cache will be complete, 1293 * it's safe for is to pull values and use them for tuning purposes. 1294 */ 1295 static int cx24117_set_frontend(struct dvb_frontend *fe) 1296 { 1297 struct cx24117_state *state = fe->demodulator_priv; 1298 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1299 struct cx24117_cmd cmd; 1300 enum fe_status tunerstat; 1301 int i, status, ret, retune = 1; 1302 u8 reg_clkdiv, reg_ratediv; 1303 1304 dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", 1305 __func__, state->demod); 1306 1307 switch (c->delivery_system) { 1308 case SYS_DVBS: 1309 dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S\n", 1310 __func__, state->demod); 1311 1312 /* Only QPSK is supported for DVB-S */ 1313 if (c->modulation != QPSK) { 1314 dev_dbg(&state->priv->i2c->dev, 1315 "%s() demod%d unsupported modulation (%d)\n", 1316 __func__, state->demod, c->modulation); 1317 return -EINVAL; 1318 } 1319 1320 /* Pilot doesn't exist in DVB-S, turn bit off */ 1321 state->dnxt.pilot_val = CX24117_PILOT_OFF; 1322 1323 /* DVB-S only supports 0.35 */ 1324 state->dnxt.rolloff_val = CX24117_ROLLOFF_035; 1325 break; 1326 1327 case SYS_DVBS2: 1328 dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S2\n", 1329 __func__, state->demod); 1330 1331 /* 1332 * NBC 8PSK/QPSK with DVB-S is supported for DVB-S2, 1333 * but not hardware auto detection 1334 */ 1335 if (c->modulation != PSK_8 && c->modulation != QPSK) { 1336 dev_dbg(&state->priv->i2c->dev, 1337 "%s() demod%d unsupported modulation (%d)\n", 1338 __func__, state->demod, c->modulation); 1339 return -EOPNOTSUPP; 1340 } 1341 1342 switch (c->pilot) { 1343 case PILOT_AUTO: 1344 state->dnxt.pilot_val = CX24117_PILOT_AUTO; 1345 break; 1346 case PILOT_OFF: 1347 state->dnxt.pilot_val = CX24117_PILOT_OFF; 1348 break; 1349 case PILOT_ON: 1350 state->dnxt.pilot_val = CX24117_PILOT_ON; 1351 break; 1352 default: 1353 dev_dbg(&state->priv->i2c->dev, 1354 "%s() demod%d unsupported pilot mode (%d)\n", 1355 __func__, state->demod, c->pilot); 1356 return -EOPNOTSUPP; 1357 } 1358 1359 switch (c->rolloff) { 1360 case ROLLOFF_20: 1361 state->dnxt.rolloff_val = CX24117_ROLLOFF_020; 1362 break; 1363 case ROLLOFF_25: 1364 state->dnxt.rolloff_val = CX24117_ROLLOFF_025; 1365 break; 1366 case ROLLOFF_35: 1367 state->dnxt.rolloff_val = CX24117_ROLLOFF_035; 1368 break; 1369 case ROLLOFF_AUTO: 1370 state->dnxt.rolloff_val = CX24117_ROLLOFF_035; 1371 /* soft-auto rolloff */ 1372 retune = 3; 1373 break; 1374 default: 1375 dev_warn(&state->priv->i2c->dev, 1376 "%s: demod%d unsupported rolloff (%d)\n", 1377 KBUILD_MODNAME, state->demod, c->rolloff); 1378 return -EOPNOTSUPP; 1379 } 1380 break; 1381 1382 default: 1383 dev_warn(&state->priv->i2c->dev, 1384 "%s: demod %d unsupported delivery system (%d)\n", 1385 KBUILD_MODNAME, state->demod, c->delivery_system); 1386 return -EINVAL; 1387 } 1388 1389 state->dnxt.delsys = c->delivery_system; 1390 state->dnxt.modulation = c->modulation; 1391 state->dnxt.frequency = c->frequency; 1392 state->dnxt.pilot = c->pilot; 1393 state->dnxt.rolloff = c->rolloff; 1394 1395 ret = cx24117_set_inversion(state, c->inversion); 1396 if (ret != 0) 1397 return ret; 1398 1399 ret = cx24117_set_fec(state, 1400 c->delivery_system, c->modulation, c->fec_inner); 1401 if (ret != 0) 1402 return ret; 1403 1404 ret = cx24117_set_symbolrate(state, c->symbol_rate); 1405 if (ret != 0) 1406 return ret; 1407 1408 /* discard the 'current' tuning parameters and prepare to tune */ 1409 cx24117_clone_params(fe); 1410 1411 dev_dbg(&state->priv->i2c->dev, 1412 "%s: delsys = %d\n", __func__, state->dcur.delsys); 1413 dev_dbg(&state->priv->i2c->dev, 1414 "%s: modulation = %d\n", __func__, state->dcur.modulation); 1415 dev_dbg(&state->priv->i2c->dev, 1416 "%s: frequency = %d\n", __func__, state->dcur.frequency); 1417 dev_dbg(&state->priv->i2c->dev, 1418 "%s: pilot = %d (val = 0x%02x)\n", __func__, 1419 state->dcur.pilot, state->dcur.pilot_val); 1420 dev_dbg(&state->priv->i2c->dev, 1421 "%s: retune = %d\n", __func__, retune); 1422 dev_dbg(&state->priv->i2c->dev, 1423 "%s: rolloff = %d (val = 0x%02x)\n", __func__, 1424 state->dcur.rolloff, state->dcur.rolloff_val); 1425 dev_dbg(&state->priv->i2c->dev, 1426 "%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate); 1427 dev_dbg(&state->priv->i2c->dev, 1428 "%s: FEC = %d (mask/val = 0x%02x/0x%02x)\n", __func__, 1429 state->dcur.fec, state->dcur.fec_mask, state->dcur.fec_val); 1430 dev_dbg(&state->priv->i2c->dev, 1431 "%s: Inversion = %d (val = 0x%02x)\n", __func__, 1432 state->dcur.inversion, state->dcur.inversion_val); 1433 1434 /* Prepare a tune request */ 1435 cmd.args[0] = CMD_TUNEREQUEST; 1436 1437 /* demod */ 1438 cmd.args[1] = state->demod; 1439 1440 /* Frequency */ 1441 cmd.args[2] = (state->dcur.frequency & 0xff0000) >> 16; 1442 cmd.args[3] = (state->dcur.frequency & 0x00ff00) >> 8; 1443 cmd.args[4] = (state->dcur.frequency & 0x0000ff); 1444 1445 /* Symbol Rate */ 1446 cmd.args[5] = ((state->dcur.symbol_rate / 1000) & 0xff00) >> 8; 1447 cmd.args[6] = ((state->dcur.symbol_rate / 1000) & 0x00ff); 1448 1449 /* Automatic Inversion */ 1450 cmd.args[7] = state->dcur.inversion_val; 1451 1452 /* Modulation / FEC / Pilot */ 1453 cmd.args[8] = state->dcur.fec_val | state->dcur.pilot_val; 1454 1455 cmd.args[9] = CX24117_SEARCH_RANGE_KHZ >> 8; 1456 cmd.args[10] = CX24117_SEARCH_RANGE_KHZ & 0xff; 1457 1458 cmd.args[11] = state->dcur.rolloff_val; 1459 cmd.args[12] = state->dcur.fec_mask; 1460 1461 if (state->dcur.symbol_rate > 30000000) { 1462 reg_ratediv = 0x04; 1463 reg_clkdiv = 0x02; 1464 } else if (state->dcur.symbol_rate > 10000000) { 1465 reg_ratediv = 0x06; 1466 reg_clkdiv = 0x03; 1467 } else { 1468 reg_ratediv = 0x0a; 1469 reg_clkdiv = 0x05; 1470 } 1471 1472 cmd.args[13] = reg_ratediv; 1473 cmd.args[14] = reg_clkdiv; 1474 1475 cx24117_writereg(state, (state->demod == 0) ? 1476 CX24117_REG_CLKDIV0 : CX24117_REG_CLKDIV1, reg_clkdiv); 1477 cx24117_writereg(state, (state->demod == 0) ? 1478 CX24117_REG_RATEDIV0 : CX24117_REG_RATEDIV1, reg_ratediv); 1479 1480 cmd.args[15] = CX24117_PNE; 1481 cmd.len = 16; 1482 1483 do { 1484 /* Reset status register */ 1485 status = cx24117_readreg(state, (state->demod == 0) ? 1486 CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1) & 1487 CX24117_SIGNAL_MASK; 1488 1489 dev_dbg(&state->priv->i2c->dev, 1490 "%s() demod%d status_setfe = %02x\n", 1491 __func__, state->demod, status); 1492 1493 cx24117_writereg(state, (state->demod == 0) ? 1494 CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1, status); 1495 1496 /* Tune */ 1497 ret = cx24117_cmd_execute(fe, &cmd); 1498 if (ret != 0) 1499 break; 1500 1501 /* 1502 * Wait for up to 500 ms before retrying 1503 * 1504 * If we are able to tune then generally it occurs within 100ms. 1505 * If it takes longer, try a different rolloff setting. 1506 */ 1507 for (i = 0; i < 50; i++) { 1508 cx24117_read_status(fe, &tunerstat); 1509 status = tunerstat & (FE_HAS_SIGNAL | FE_HAS_SYNC); 1510 if (status == (FE_HAS_SIGNAL | FE_HAS_SYNC)) { 1511 dev_dbg(&state->priv->i2c->dev, 1512 "%s() demod%d tuned\n", 1513 __func__, state->demod); 1514 return 0; 1515 } 1516 msleep(20); 1517 } 1518 1519 dev_dbg(&state->priv->i2c->dev, "%s() demod%d not tuned\n", 1520 __func__, state->demod); 1521 1522 /* try next rolloff value */ 1523 if (state->dcur.rolloff == 3) 1524 cmd.args[11]--; 1525 1526 } while (--retune); 1527 return -EINVAL; 1528 } 1529 1530 static int cx24117_tune(struct dvb_frontend *fe, bool re_tune, 1531 unsigned int mode_flags, unsigned int *delay, enum fe_status *status) 1532 { 1533 struct cx24117_state *state = fe->demodulator_priv; 1534 1535 dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", 1536 __func__, state->demod); 1537 1538 *delay = HZ / 5; 1539 if (re_tune) { 1540 int ret = cx24117_set_frontend(fe); 1541 if (ret) 1542 return ret; 1543 } 1544 return cx24117_read_status(fe, status); 1545 } 1546 1547 static enum dvbfe_algo cx24117_get_algo(struct dvb_frontend *fe) 1548 { 1549 return DVBFE_ALGO_HW; 1550 } 1551 1552 static int cx24117_get_frontend(struct dvb_frontend *fe, 1553 struct dtv_frontend_properties *c) 1554 { 1555 struct cx24117_state *state = fe->demodulator_priv; 1556 struct cx24117_cmd cmd; 1557 u8 reg, st, inv; 1558 int ret, idx; 1559 unsigned int freq; 1560 short srate_os, freq_os; 1561 1562 u8 buf[0x1f-4]; 1563 1564 /* Read current tune parameters */ 1565 cmd.args[0] = CMD_GETCTLACC; 1566 cmd.args[1] = (u8) state->demod; 1567 cmd.len = 2; 1568 ret = cx24117_cmd_execute(fe, &cmd); 1569 if (ret != 0) 1570 return ret; 1571 1572 /* read all required regs at once */ 1573 reg = (state->demod == 0) ? CX24117_REG_FREQ3_0 : CX24117_REG_FREQ3_1; 1574 ret = cx24117_readregN(state, reg, buf, 0x1f-4); 1575 if (ret != 0) 1576 return ret; 1577 1578 st = buf[5]; 1579 1580 /* get spectral inversion */ 1581 inv = (((state->demod == 0) ? ~st : st) >> 6) & 1; 1582 if (inv == 0) 1583 c->inversion = INVERSION_OFF; 1584 else 1585 c->inversion = INVERSION_ON; 1586 1587 /* modulation and fec */ 1588 idx = st & 0x3f; 1589 if (c->delivery_system == SYS_DVBS2) { 1590 if (idx > 11) 1591 idx += 9; 1592 else 1593 idx += 7; 1594 } 1595 1596 c->modulation = cx24117_modfec_modes[idx].modulation; 1597 c->fec_inner = cx24117_modfec_modes[idx].fec; 1598 1599 /* frequency */ 1600 freq = (buf[0] << 16) | (buf[1] << 8) | buf[2]; 1601 freq_os = (buf[8] << 8) | buf[9]; 1602 c->frequency = freq + freq_os; 1603 1604 /* symbol rate */ 1605 srate_os = (buf[10] << 8) | buf[11]; 1606 c->symbol_rate = -1000 * srate_os + state->dcur.symbol_rate; 1607 return 0; 1608 } 1609 1610 static const struct dvb_frontend_ops cx24117_ops = { 1611 .delsys = { SYS_DVBS, SYS_DVBS2 }, 1612 .info = { 1613 .name = "Conexant CX24117/CX24132", 1614 .frequency_min_hz = 950 * MHz, 1615 .frequency_max_hz = 2150 * MHz, 1616 .frequency_stepsize_hz = 1011 * kHz, 1617 .frequency_tolerance_hz = 5 * MHz, 1618 .symbol_rate_min = 1000000, 1619 .symbol_rate_max = 45000000, 1620 .caps = FE_CAN_INVERSION_AUTO | 1621 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | 1622 FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | 1623 FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | 1624 FE_CAN_2G_MODULATION | 1625 FE_CAN_QPSK | FE_CAN_RECOVER 1626 }, 1627 1628 .release = cx24117_release, 1629 1630 .init = cx24117_initfe, 1631 .sleep = cx24117_sleep, 1632 .read_status = cx24117_read_status, 1633 .read_ber = cx24117_read_ber, 1634 .read_signal_strength = cx24117_read_signal_strength, 1635 .read_snr = cx24117_read_snr, 1636 .read_ucblocks = cx24117_read_ucblocks, 1637 .set_tone = cx24117_set_tone, 1638 .set_voltage = cx24117_set_voltage, 1639 .diseqc_send_master_cmd = cx24117_send_diseqc_msg, 1640 .diseqc_send_burst = cx24117_diseqc_send_burst, 1641 .get_frontend_algo = cx24117_get_algo, 1642 .tune = cx24117_tune, 1643 1644 .set_frontend = cx24117_set_frontend, 1645 .get_frontend = cx24117_get_frontend, 1646 }; 1647 1648 1649 MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24117/cx24132 hardware"); 1650 MODULE_AUTHOR("Luis Alves <ljalvs@gmail.com>"); 1651 MODULE_LICENSE("GPL"); 1652 MODULE_VERSION("1.1"); 1653 MODULE_FIRMWARE(CX24117_DEFAULT_FIRMWARE); 1654 1655