1 /* 2 Conexant cx24117/cx24132 - Dual DVBS/S2 Satellite demod/tuner driver 3 4 Copyright (C) 2013 Luis Alves <ljalvs@gmail.com> 5 July, 6th 2013 6 First release based on cx24116 driver by: 7 Steven Toth and Georg Acher, Darron Broad, Igor Liplianin 8 Cards currently supported: 9 TBS6980 - Dual DVBS/S2 PCIe card 10 TBS6981 - Dual DVBS/S2 PCIe card 11 12 This program is free software; you can redistribute it and/or modify 13 it under the terms of the GNU General Public License as published by 14 the Free Software Foundation; either version 2 of the License, or 15 (at your option) any later version. 16 17 This program is distributed in the hope that it will be useful, 18 but WITHOUT ANY WARRANTY; without even the implied warranty of 19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 GNU General Public License for more details. 21 22 You should have received a copy of the GNU General Public License 23 along with this program; if not, write to the Free Software 24 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 25 */ 26 27 #include <linux/slab.h> 28 #include <linux/kernel.h> 29 #include <linux/module.h> 30 #include <linux/moduleparam.h> 31 #include <linux/init.h> 32 #include <linux/firmware.h> 33 34 #include "tuner-i2c.h" 35 #include <media/dvb_frontend.h> 36 #include "cx24117.h" 37 38 39 #define CX24117_DEFAULT_FIRMWARE "dvb-fe-cx24117.fw" 40 #define CX24117_SEARCH_RANGE_KHZ 5000 41 42 /* known registers */ 43 #define CX24117_REG_COMMAND (0x00) /* command buffer */ 44 #define CX24117_REG_EXECUTE (0x1f) /* execute command */ 45 46 #define CX24117_REG_FREQ3_0 (0x34) /* frequency */ 47 #define CX24117_REG_FREQ2_0 (0x35) 48 #define CX24117_REG_FREQ1_0 (0x36) 49 #define CX24117_REG_STATE0 (0x39) 50 #define CX24117_REG_SSTATUS0 (0x3a) /* demod0 signal high / status */ 51 #define CX24117_REG_SIGNAL0 (0x3b) 52 #define CX24117_REG_FREQ5_0 (0x3c) /* +-freq */ 53 #define CX24117_REG_FREQ6_0 (0x3d) 54 #define CX24117_REG_SRATE2_0 (0x3e) /* +- 1000 * srate */ 55 #define CX24117_REG_SRATE1_0 (0x3f) 56 #define CX24117_REG_QUALITY2_0 (0x40) 57 #define CX24117_REG_QUALITY1_0 (0x41) 58 59 #define CX24117_REG_BER4_0 (0x47) 60 #define CX24117_REG_BER3_0 (0x48) 61 #define CX24117_REG_BER2_0 (0x49) 62 #define CX24117_REG_BER1_0 (0x4a) 63 #define CX24117_REG_DVBS_UCB2_0 (0x4b) 64 #define CX24117_REG_DVBS_UCB1_0 (0x4c) 65 #define CX24117_REG_DVBS2_UCB2_0 (0x50) 66 #define CX24117_REG_DVBS2_UCB1_0 (0x51) 67 #define CX24117_REG_QSTATUS0 (0x93) 68 #define CX24117_REG_CLKDIV0 (0xe6) 69 #define CX24117_REG_RATEDIV0 (0xf0) 70 71 72 #define CX24117_REG_FREQ3_1 (0x55) /* frequency */ 73 #define CX24117_REG_FREQ2_1 (0x56) 74 #define CX24117_REG_FREQ1_1 (0x57) 75 #define CX24117_REG_STATE1 (0x5a) 76 #define CX24117_REG_SSTATUS1 (0x5b) /* demod1 signal high / status */ 77 #define CX24117_REG_SIGNAL1 (0x5c) 78 #define CX24117_REG_FREQ5_1 (0x5d) /* +- freq */ 79 #define CX24117_REG_FREQ4_1 (0x5e) 80 #define CX24117_REG_SRATE2_1 (0x5f) 81 #define CX24117_REG_SRATE1_1 (0x60) 82 #define CX24117_REG_QUALITY2_1 (0x61) 83 #define CX24117_REG_QUALITY1_1 (0x62) 84 #define CX24117_REG_BER4_1 (0x68) 85 #define CX24117_REG_BER3_1 (0x69) 86 #define CX24117_REG_BER2_1 (0x6a) 87 #define CX24117_REG_BER1_1 (0x6b) 88 #define CX24117_REG_DVBS_UCB2_1 (0x6c) 89 #define CX24117_REG_DVBS_UCB1_1 (0x6d) 90 #define CX24117_REG_DVBS2_UCB2_1 (0x71) 91 #define CX24117_REG_DVBS2_UCB1_1 (0x72) 92 #define CX24117_REG_QSTATUS1 (0x9f) 93 #define CX24117_REG_CLKDIV1 (0xe7) 94 #define CX24117_REG_RATEDIV1 (0xf1) 95 96 97 /* arg buffer size */ 98 #define CX24117_ARGLEN (0x1e) 99 100 /* rolloff */ 101 #define CX24117_ROLLOFF_020 (0x00) 102 #define CX24117_ROLLOFF_025 (0x01) 103 #define CX24117_ROLLOFF_035 (0x02) 104 105 /* pilot bit */ 106 #define CX24117_PILOT_OFF (0x00) 107 #define CX24117_PILOT_ON (0x40) 108 #define CX24117_PILOT_AUTO (0x80) 109 110 /* signal status */ 111 #define CX24117_HAS_SIGNAL (0x01) 112 #define CX24117_HAS_CARRIER (0x02) 113 #define CX24117_HAS_VITERBI (0x04) 114 #define CX24117_HAS_SYNCLOCK (0x08) 115 #define CX24117_STATUS_MASK (0x0f) 116 #define CX24117_SIGNAL_MASK (0xc0) 117 118 119 /* arg offset for DiSEqC */ 120 #define CX24117_DISEQC_DEMOD (1) 121 #define CX24117_DISEQC_BURST (2) 122 #define CX24117_DISEQC_ARG3_2 (3) /* unknown value=2 */ 123 #define CX24117_DISEQC_ARG4_0 (4) /* unknown value=0 */ 124 #define CX24117_DISEQC_ARG5_0 (5) /* unknown value=0 */ 125 #define CX24117_DISEQC_MSGLEN (6) 126 #define CX24117_DISEQC_MSGOFS (7) 127 128 /* DiSEqC burst */ 129 #define CX24117_DISEQC_MINI_A (0) 130 #define CX24117_DISEQC_MINI_B (1) 131 132 133 #define CX24117_PNE (0) /* 0 disabled / 2 enabled */ 134 #define CX24117_OCC (1) /* 0 disabled / 1 enabled */ 135 136 137 enum cmds { 138 CMD_SET_VCOFREQ = 0x10, 139 CMD_TUNEREQUEST = 0x11, 140 CMD_GLOBAL_MPEGCFG = 0x13, 141 CMD_MPEGCFG = 0x14, 142 CMD_TUNERINIT = 0x15, 143 CMD_GET_SRATE = 0x18, 144 CMD_SET_GOLDCODE = 0x19, 145 CMD_GET_AGCACC = 0x1a, 146 CMD_DEMODINIT = 0x1b, 147 CMD_GETCTLACC = 0x1c, 148 149 CMD_LNBCONFIG = 0x20, 150 CMD_LNBSEND = 0x21, 151 CMD_LNBDCLEVEL = 0x22, 152 CMD_LNBPCBCONFIG = 0x23, 153 CMD_LNBSENDTONEBST = 0x24, 154 CMD_LNBUPDREPLY = 0x25, 155 156 CMD_SET_GPIOMODE = 0x30, 157 CMD_SET_GPIOEN = 0x31, 158 CMD_SET_GPIODIR = 0x32, 159 CMD_SET_GPIOOUT = 0x33, 160 CMD_ENABLERSCORR = 0x34, 161 CMD_FWVERSION = 0x35, 162 CMD_SET_SLEEPMODE = 0x36, 163 CMD_BERCTRL = 0x3c, 164 CMD_EVENTCTRL = 0x3d, 165 }; 166 167 static LIST_HEAD(hybrid_tuner_instance_list); 168 static DEFINE_MUTEX(cx24117_list_mutex); 169 170 /* The Demod/Tuner can't easily provide these, we cache them */ 171 struct cx24117_tuning { 172 u32 frequency; 173 u32 symbol_rate; 174 enum fe_spectral_inversion inversion; 175 enum fe_code_rate fec; 176 177 enum fe_delivery_system delsys; 178 enum fe_modulation modulation; 179 enum fe_pilot pilot; 180 enum fe_rolloff rolloff; 181 182 /* Demod values */ 183 u8 fec_val; 184 u8 fec_mask; 185 u8 inversion_val; 186 u8 pilot_val; 187 u8 rolloff_val; 188 }; 189 190 /* Basic commands that are sent to the firmware */ 191 struct cx24117_cmd { 192 u8 len; 193 u8 args[CX24117_ARGLEN]; 194 }; 195 196 /* common to both fe's */ 197 struct cx24117_priv { 198 u8 demod_address; 199 struct i2c_adapter *i2c; 200 u8 skip_fw_load; 201 struct mutex fe_lock; 202 203 /* Used for sharing this struct between demods */ 204 struct tuner_i2c_props i2c_props; 205 struct list_head hybrid_tuner_instance_list; 206 }; 207 208 /* one per each fe */ 209 struct cx24117_state { 210 struct cx24117_priv *priv; 211 struct dvb_frontend frontend; 212 213 struct cx24117_tuning dcur; 214 struct cx24117_tuning dnxt; 215 struct cx24117_cmd dsec_cmd; 216 217 int demod; 218 }; 219 220 /* modfec (modulation and FEC) lookup table */ 221 /* Check cx24116.c for a detailed description of each field */ 222 static struct cx24117_modfec { 223 enum fe_delivery_system delivery_system; 224 enum fe_modulation modulation; 225 enum fe_code_rate fec; 226 u8 mask; /* In DVBS mode this is used to autodetect */ 227 u8 val; /* Passed to the firmware to indicate mode selection */ 228 } cx24117_modfec_modes[] = { 229 /* QPSK. For unknown rates we set hardware to auto detect 0xfe 0x30 */ 230 231 /*mod fec mask val */ 232 { SYS_DVBS, QPSK, FEC_NONE, 0xfe, 0x30 }, 233 { SYS_DVBS, QPSK, FEC_1_2, 0x02, 0x2e }, /* 00000010 00101110 */ 234 { SYS_DVBS, QPSK, FEC_2_3, 0x04, 0x2f }, /* 00000100 00101111 */ 235 { SYS_DVBS, QPSK, FEC_3_4, 0x08, 0x30 }, /* 00001000 00110000 */ 236 { SYS_DVBS, QPSK, FEC_4_5, 0xfe, 0x30 }, /* 000?0000 ? */ 237 { SYS_DVBS, QPSK, FEC_5_6, 0x20, 0x31 }, /* 00100000 00110001 */ 238 { SYS_DVBS, QPSK, FEC_6_7, 0xfe, 0x30 }, /* 0?000000 ? */ 239 { SYS_DVBS, QPSK, FEC_7_8, 0x80, 0x32 }, /* 10000000 00110010 */ 240 { SYS_DVBS, QPSK, FEC_8_9, 0xfe, 0x30 }, /* 0000000? ? */ 241 { SYS_DVBS, QPSK, FEC_AUTO, 0xfe, 0x30 }, 242 /* NBC-QPSK */ 243 { SYS_DVBS2, QPSK, FEC_NONE, 0x00, 0x00 }, 244 { SYS_DVBS2, QPSK, FEC_1_2, 0x00, 0x04 }, 245 { SYS_DVBS2, QPSK, FEC_3_5, 0x00, 0x05 }, 246 { SYS_DVBS2, QPSK, FEC_2_3, 0x00, 0x06 }, 247 { SYS_DVBS2, QPSK, FEC_3_4, 0x00, 0x07 }, 248 { SYS_DVBS2, QPSK, FEC_4_5, 0x00, 0x08 }, 249 { SYS_DVBS2, QPSK, FEC_5_6, 0x00, 0x09 }, 250 { SYS_DVBS2, QPSK, FEC_8_9, 0x00, 0x0a }, 251 { SYS_DVBS2, QPSK, FEC_9_10, 0x00, 0x0b }, 252 { SYS_DVBS2, QPSK, FEC_AUTO, 0x00, 0x00 }, 253 /* 8PSK */ 254 { SYS_DVBS2, PSK_8, FEC_NONE, 0x00, 0x00 }, 255 { SYS_DVBS2, PSK_8, FEC_3_5, 0x00, 0x0c }, 256 { SYS_DVBS2, PSK_8, FEC_2_3, 0x00, 0x0d }, 257 { SYS_DVBS2, PSK_8, FEC_3_4, 0x00, 0x0e }, 258 { SYS_DVBS2, PSK_8, FEC_5_6, 0x00, 0x0f }, 259 { SYS_DVBS2, PSK_8, FEC_8_9, 0x00, 0x10 }, 260 { SYS_DVBS2, PSK_8, FEC_9_10, 0x00, 0x11 }, 261 { SYS_DVBS2, PSK_8, FEC_AUTO, 0x00, 0x00 }, 262 /* 263 * 'val' can be found in the FECSTATUS register when tuning. 264 * FECSTATUS will give the actual FEC in use if tuning was successful. 265 */ 266 }; 267 268 269 static int cx24117_writereg(struct cx24117_state *state, u8 reg, u8 data) 270 { 271 u8 buf[] = { reg, data }; 272 struct i2c_msg msg = { .addr = state->priv->demod_address, 273 .flags = 0, .buf = buf, .len = 2 }; 274 int ret; 275 276 dev_dbg(&state->priv->i2c->dev, 277 "%s() demod%d i2c wr @0x%02x=0x%02x\n", 278 __func__, state->demod, reg, data); 279 280 ret = i2c_transfer(state->priv->i2c, &msg, 1); 281 if (ret < 0) { 282 dev_warn(&state->priv->i2c->dev, 283 "%s: demod%d i2c wr err(%i) @0x%02x=0x%02x\n", 284 KBUILD_MODNAME, state->demod, ret, reg, data); 285 return ret; 286 } 287 return 0; 288 } 289 290 static int cx24117_writecmd(struct cx24117_state *state, 291 struct cx24117_cmd *cmd) 292 { 293 struct i2c_msg msg; 294 u8 buf[CX24117_ARGLEN+1]; 295 int ret; 296 297 dev_dbg(&state->priv->i2c->dev, 298 "%s() demod%d i2c wr cmd len=%d\n", 299 __func__, state->demod, cmd->len); 300 301 buf[0] = CX24117_REG_COMMAND; 302 memcpy(&buf[1], cmd->args, cmd->len); 303 304 msg.addr = state->priv->demod_address; 305 msg.flags = 0; 306 msg.len = cmd->len+1; 307 msg.buf = buf; 308 ret = i2c_transfer(state->priv->i2c, &msg, 1); 309 if (ret < 0) { 310 dev_warn(&state->priv->i2c->dev, 311 "%s: demod%d i2c wr cmd err(%i) len=%d\n", 312 KBUILD_MODNAME, state->demod, ret, cmd->len); 313 return ret; 314 } 315 return 0; 316 } 317 318 static int cx24117_readreg(struct cx24117_state *state, u8 reg) 319 { 320 int ret; 321 u8 recv = 0; 322 struct i2c_msg msg[] = { 323 { .addr = state->priv->demod_address, .flags = 0, 324 .buf = ®, .len = 1 }, 325 { .addr = state->priv->demod_address, .flags = I2C_M_RD, 326 .buf = &recv, .len = 1 } 327 }; 328 329 ret = i2c_transfer(state->priv->i2c, msg, 2); 330 if (ret < 0) { 331 dev_warn(&state->priv->i2c->dev, 332 "%s: demod%d i2c rd err(%d) @0x%x\n", 333 KBUILD_MODNAME, state->demod, ret, reg); 334 return ret; 335 } 336 337 dev_dbg(&state->priv->i2c->dev, "%s() demod%d i2c rd @0x%02x=0x%02x\n", 338 __func__, state->demod, reg, recv); 339 340 return recv; 341 } 342 343 static int cx24117_readregN(struct cx24117_state *state, 344 u8 reg, u8 *buf, int len) 345 { 346 int ret; 347 struct i2c_msg msg[] = { 348 { .addr = state->priv->demod_address, .flags = 0, 349 .buf = ®, .len = 1 }, 350 { .addr = state->priv->demod_address, .flags = I2C_M_RD, 351 .buf = buf, .len = len } 352 }; 353 354 ret = i2c_transfer(state->priv->i2c, msg, 2); 355 if (ret < 0) { 356 dev_warn(&state->priv->i2c->dev, 357 "%s: demod%d i2c rd err(%d) @0x%x\n", 358 KBUILD_MODNAME, state->demod, ret, reg); 359 return ret; 360 } 361 return 0; 362 } 363 364 static int cx24117_set_inversion(struct cx24117_state *state, 365 enum fe_spectral_inversion inversion) 366 { 367 dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n", 368 __func__, inversion, state->demod); 369 370 switch (inversion) { 371 case INVERSION_OFF: 372 state->dnxt.inversion_val = 0x00; 373 break; 374 case INVERSION_ON: 375 state->dnxt.inversion_val = 0x04; 376 break; 377 case INVERSION_AUTO: 378 state->dnxt.inversion_val = 0x0C; 379 break; 380 default: 381 return -EINVAL; 382 } 383 384 state->dnxt.inversion = inversion; 385 386 return 0; 387 } 388 389 static int cx24117_lookup_fecmod(struct cx24117_state *state, 390 enum fe_delivery_system d, enum fe_modulation m, enum fe_code_rate f) 391 { 392 int i, ret = -EINVAL; 393 394 dev_dbg(&state->priv->i2c->dev, 395 "%s(demod(0x%02x,0x%02x) demod%d\n", 396 __func__, m, f, state->demod); 397 398 for (i = 0; i < ARRAY_SIZE(cx24117_modfec_modes); i++) { 399 if ((d == cx24117_modfec_modes[i].delivery_system) && 400 (m == cx24117_modfec_modes[i].modulation) && 401 (f == cx24117_modfec_modes[i].fec)) { 402 ret = i; 403 break; 404 } 405 } 406 407 return ret; 408 } 409 410 static int cx24117_set_fec(struct cx24117_state *state, 411 enum fe_delivery_system delsys, 412 enum fe_modulation mod, 413 enum fe_code_rate fec) 414 { 415 int ret; 416 417 dev_dbg(&state->priv->i2c->dev, 418 "%s(0x%02x,0x%02x) demod%d\n", 419 __func__, mod, fec, state->demod); 420 421 ret = cx24117_lookup_fecmod(state, delsys, mod, fec); 422 if (ret < 0) 423 return ret; 424 425 state->dnxt.fec = fec; 426 state->dnxt.fec_val = cx24117_modfec_modes[ret].val; 427 state->dnxt.fec_mask = cx24117_modfec_modes[ret].mask; 428 dev_dbg(&state->priv->i2c->dev, 429 "%s() demod%d mask/val = 0x%02x/0x%02x\n", __func__, 430 state->demod, state->dnxt.fec_mask, state->dnxt.fec_val); 431 432 return 0; 433 } 434 435 static int cx24117_set_symbolrate(struct cx24117_state *state, u32 rate) 436 { 437 dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n", 438 __func__, rate, state->demod); 439 440 state->dnxt.symbol_rate = rate; 441 442 dev_dbg(&state->priv->i2c->dev, 443 "%s() demod%d symbol_rate = %d\n", 444 __func__, state->demod, rate); 445 446 return 0; 447 } 448 449 static int cx24117_load_firmware(struct dvb_frontend *fe, 450 const struct firmware *fw); 451 452 static int cx24117_firmware_ondemand(struct dvb_frontend *fe) 453 { 454 struct cx24117_state *state = fe->demodulator_priv; 455 const struct firmware *fw; 456 int ret = 0; 457 458 dev_dbg(&state->priv->i2c->dev, "%s() demod%d skip_fw_load=%d\n", 459 __func__, state->demod, state->priv->skip_fw_load); 460 461 if (state->priv->skip_fw_load) 462 return 0; 463 464 /* check if firmware is already running */ 465 if (cx24117_readreg(state, 0xeb) != 0xa) { 466 /* Load firmware */ 467 /* request the firmware, this will block until loaded */ 468 dev_dbg(&state->priv->i2c->dev, 469 "%s: Waiting for firmware upload (%s)...\n", 470 __func__, CX24117_DEFAULT_FIRMWARE); 471 ret = request_firmware(&fw, CX24117_DEFAULT_FIRMWARE, 472 state->priv->i2c->dev.parent); 473 dev_dbg(&state->priv->i2c->dev, 474 "%s: Waiting for firmware upload(2)...\n", __func__); 475 if (ret) { 476 dev_err(&state->priv->i2c->dev, 477 "%s: No firmware uploaded (timeout or file not found?)\n", 478 __func__); 479 return ret; 480 } 481 482 /* Make sure we don't recurse back through here 483 * during loading */ 484 state->priv->skip_fw_load = 1; 485 486 ret = cx24117_load_firmware(fe, fw); 487 if (ret) 488 dev_err(&state->priv->i2c->dev, 489 "%s: Writing firmware failed\n", __func__); 490 release_firmware(fw); 491 492 dev_info(&state->priv->i2c->dev, 493 "%s: Firmware upload %s\n", __func__, 494 ret == 0 ? "complete" : "failed"); 495 496 /* Ensure firmware is always loaded if required */ 497 state->priv->skip_fw_load = 0; 498 } 499 500 return ret; 501 } 502 503 /* Take a basic firmware command structure, format it 504 * and forward it for processing 505 */ 506 static int cx24117_cmd_execute_nolock(struct dvb_frontend *fe, 507 struct cx24117_cmd *cmd) 508 { 509 struct cx24117_state *state = fe->demodulator_priv; 510 int i, ret; 511 512 dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", 513 __func__, state->demod); 514 515 /* Load the firmware if required */ 516 ret = cx24117_firmware_ondemand(fe); 517 if (ret != 0) 518 return ret; 519 520 /* Write the command */ 521 cx24117_writecmd(state, cmd); 522 523 /* Start execution and wait for cmd to terminate */ 524 cx24117_writereg(state, CX24117_REG_EXECUTE, 0x01); 525 i = 0; 526 while (cx24117_readreg(state, CX24117_REG_EXECUTE)) { 527 msleep(20); 528 if (i++ > 40) { 529 /* Avoid looping forever if the firmware does 530 not respond */ 531 dev_warn(&state->priv->i2c->dev, 532 "%s() Firmware not responding\n", __func__); 533 return -EIO; 534 } 535 } 536 return 0; 537 } 538 539 static int cx24117_cmd_execute(struct dvb_frontend *fe, struct cx24117_cmd *cmd) 540 { 541 struct cx24117_state *state = fe->demodulator_priv; 542 int ret; 543 544 mutex_lock(&state->priv->fe_lock); 545 ret = cx24117_cmd_execute_nolock(fe, cmd); 546 mutex_unlock(&state->priv->fe_lock); 547 548 return ret; 549 } 550 551 static int cx24117_load_firmware(struct dvb_frontend *fe, 552 const struct firmware *fw) 553 { 554 struct cx24117_state *state = fe->demodulator_priv; 555 struct cx24117_cmd cmd; 556 int i, ret; 557 unsigned char vers[4]; 558 559 struct i2c_msg msg; 560 u8 *buf; 561 562 dev_dbg(&state->priv->i2c->dev, 563 "%s() demod%d FW is %zu bytes (%02x %02x .. %02x %02x)\n", 564 __func__, state->demod, fw->size, fw->data[0], fw->data[1], 565 fw->data[fw->size - 2], fw->data[fw->size - 1]); 566 567 cx24117_writereg(state, 0xea, 0x00); 568 cx24117_writereg(state, 0xea, 0x01); 569 cx24117_writereg(state, 0xea, 0x00); 570 571 cx24117_writereg(state, 0xce, 0x92); 572 573 cx24117_writereg(state, 0xfb, 0x00); 574 cx24117_writereg(state, 0xfc, 0x00); 575 576 cx24117_writereg(state, 0xc3, 0x04); 577 cx24117_writereg(state, 0xc4, 0x04); 578 579 cx24117_writereg(state, 0xce, 0x00); 580 cx24117_writereg(state, 0xcf, 0x00); 581 582 cx24117_writereg(state, 0xea, 0x00); 583 cx24117_writereg(state, 0xeb, 0x0c); 584 cx24117_writereg(state, 0xec, 0x06); 585 cx24117_writereg(state, 0xed, 0x05); 586 cx24117_writereg(state, 0xee, 0x03); 587 cx24117_writereg(state, 0xef, 0x05); 588 589 cx24117_writereg(state, 0xf3, 0x03); 590 cx24117_writereg(state, 0xf4, 0x44); 591 592 cx24117_writereg(state, CX24117_REG_RATEDIV0, 0x04); 593 cx24117_writereg(state, CX24117_REG_CLKDIV0, 0x02); 594 595 cx24117_writereg(state, CX24117_REG_RATEDIV1, 0x04); 596 cx24117_writereg(state, CX24117_REG_CLKDIV1, 0x02); 597 598 cx24117_writereg(state, 0xf2, 0x04); 599 cx24117_writereg(state, 0xe8, 0x02); 600 cx24117_writereg(state, 0xea, 0x01); 601 cx24117_writereg(state, 0xc8, 0x00); 602 cx24117_writereg(state, 0xc9, 0x00); 603 cx24117_writereg(state, 0xca, 0x00); 604 cx24117_writereg(state, 0xcb, 0x00); 605 cx24117_writereg(state, 0xcc, 0x00); 606 cx24117_writereg(state, 0xcd, 0x00); 607 cx24117_writereg(state, 0xe4, 0x03); 608 cx24117_writereg(state, 0xeb, 0x0a); 609 610 cx24117_writereg(state, 0xfb, 0x00); 611 cx24117_writereg(state, 0xe0, 0x76); 612 cx24117_writereg(state, 0xf7, 0x81); 613 cx24117_writereg(state, 0xf8, 0x00); 614 cx24117_writereg(state, 0xf9, 0x00); 615 616 buf = kmalloc(fw->size + 1, GFP_KERNEL); 617 if (buf == NULL) { 618 state->priv->skip_fw_load = 0; 619 return -ENOMEM; 620 } 621 622 /* fw upload reg */ 623 buf[0] = 0xfa; 624 memcpy(&buf[1], fw->data, fw->size); 625 626 /* prepare i2c message to send */ 627 msg.addr = state->priv->demod_address; 628 msg.flags = 0; 629 msg.len = fw->size + 1; 630 msg.buf = buf; 631 632 /* send fw */ 633 ret = i2c_transfer(state->priv->i2c, &msg, 1); 634 if (ret < 0) 635 return ret; 636 637 kfree(buf); 638 639 cx24117_writereg(state, 0xf7, 0x0c); 640 cx24117_writereg(state, 0xe0, 0x00); 641 642 /* Init demodulator */ 643 cmd.args[0] = CMD_DEMODINIT; 644 cmd.args[1] = 0x00; 645 cmd.args[2] = 0x01; 646 cmd.args[3] = 0x00; 647 cmd.len = 4; 648 ret = cx24117_cmd_execute_nolock(fe, &cmd); 649 if (ret != 0) 650 goto error; 651 652 /* Set VCO frequency */ 653 cmd.args[0] = CMD_SET_VCOFREQ; 654 cmd.args[1] = 0x06; 655 cmd.args[2] = 0x2b; 656 cmd.args[3] = 0xd8; 657 cmd.args[4] = 0xa5; 658 cmd.args[5] = 0xee; 659 cmd.args[6] = 0x03; 660 cmd.args[7] = 0x9d; 661 cmd.args[8] = 0xfc; 662 cmd.args[9] = 0x06; 663 cmd.args[10] = 0x02; 664 cmd.args[11] = 0x9d; 665 cmd.args[12] = 0xfc; 666 cmd.len = 13; 667 ret = cx24117_cmd_execute_nolock(fe, &cmd); 668 if (ret != 0) 669 goto error; 670 671 /* Tuner init */ 672 cmd.args[0] = CMD_TUNERINIT; 673 cmd.args[1] = 0x00; 674 cmd.args[2] = 0x01; 675 cmd.args[3] = 0x00; 676 cmd.args[4] = 0x00; 677 cmd.args[5] = 0x01; 678 cmd.args[6] = 0x01; 679 cmd.args[7] = 0x01; 680 cmd.args[8] = 0x00; 681 cmd.args[9] = 0x05; 682 cmd.args[10] = 0x02; 683 cmd.args[11] = 0x02; 684 cmd.args[12] = 0x00; 685 cmd.len = 13; 686 ret = cx24117_cmd_execute_nolock(fe, &cmd); 687 if (ret != 0) 688 goto error; 689 690 /* Global MPEG config */ 691 cmd.args[0] = CMD_GLOBAL_MPEGCFG; 692 cmd.args[1] = 0x00; 693 cmd.args[2] = 0x00; 694 cmd.args[3] = 0x00; 695 cmd.args[4] = 0x01; 696 cmd.args[5] = 0x00; 697 cmd.len = 6; 698 ret = cx24117_cmd_execute_nolock(fe, &cmd); 699 if (ret != 0) 700 goto error; 701 702 /* MPEG config for each demod */ 703 for (i = 0; i < 2; i++) { 704 cmd.args[0] = CMD_MPEGCFG; 705 cmd.args[1] = (u8) i; 706 cmd.args[2] = 0x00; 707 cmd.args[3] = 0x05; 708 cmd.args[4] = 0x00; 709 cmd.args[5] = 0x00; 710 cmd.args[6] = 0x55; 711 cmd.args[7] = 0x00; 712 cmd.len = 8; 713 ret = cx24117_cmd_execute_nolock(fe, &cmd); 714 if (ret != 0) 715 goto error; 716 } 717 718 cx24117_writereg(state, 0xce, 0xc0); 719 cx24117_writereg(state, 0xcf, 0x00); 720 cx24117_writereg(state, 0xe5, 0x04); 721 722 /* Get firmware version */ 723 cmd.args[0] = CMD_FWVERSION; 724 cmd.len = 2; 725 for (i = 0; i < 4; i++) { 726 cmd.args[1] = i; 727 ret = cx24117_cmd_execute_nolock(fe, &cmd); 728 if (ret != 0) 729 goto error; 730 vers[i] = cx24117_readreg(state, 0x33); 731 } 732 dev_info(&state->priv->i2c->dev, 733 "%s: FW version %i.%i.%i.%i\n", __func__, 734 vers[0], vers[1], vers[2], vers[3]); 735 return 0; 736 error: 737 state->priv->skip_fw_load = 0; 738 dev_err(&state->priv->i2c->dev, "%s() Error running FW.\n", __func__); 739 return ret; 740 } 741 742 static int cx24117_read_status(struct dvb_frontend *fe, enum fe_status *status) 743 { 744 struct cx24117_state *state = fe->demodulator_priv; 745 int lock; 746 747 lock = cx24117_readreg(state, 748 (state->demod == 0) ? CX24117_REG_SSTATUS0 : 749 CX24117_REG_SSTATUS1) & 750 CX24117_STATUS_MASK; 751 752 dev_dbg(&state->priv->i2c->dev, "%s() demod%d status = 0x%02x\n", 753 __func__, state->demod, lock); 754 755 *status = 0; 756 757 if (lock & CX24117_HAS_SIGNAL) 758 *status |= FE_HAS_SIGNAL; 759 if (lock & CX24117_HAS_CARRIER) 760 *status |= FE_HAS_CARRIER; 761 if (lock & CX24117_HAS_VITERBI) 762 *status |= FE_HAS_VITERBI; 763 if (lock & CX24117_HAS_SYNCLOCK) 764 *status |= FE_HAS_SYNC | FE_HAS_LOCK; 765 766 return 0; 767 } 768 769 static int cx24117_read_ber(struct dvb_frontend *fe, u32 *ber) 770 { 771 struct cx24117_state *state = fe->demodulator_priv; 772 int ret; 773 u8 buf[4]; 774 u8 base_reg = (state->demod == 0) ? 775 CX24117_REG_BER4_0 : 776 CX24117_REG_BER4_1; 777 778 ret = cx24117_readregN(state, base_reg, buf, 4); 779 if (ret != 0) 780 return ret; 781 782 *ber = (buf[0] << 24) | (buf[1] << 16) | 783 (buf[1] << 8) | buf[0]; 784 785 dev_dbg(&state->priv->i2c->dev, "%s() demod%d ber=0x%04x\n", 786 __func__, state->demod, *ber); 787 788 return 0; 789 } 790 791 static int cx24117_read_signal_strength(struct dvb_frontend *fe, 792 u16 *signal_strength) 793 { 794 struct cx24117_state *state = fe->demodulator_priv; 795 struct cx24117_cmd cmd; 796 int ret; 797 u16 sig_reading; 798 u8 buf[2]; 799 u8 reg = (state->demod == 0) ? 800 CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1; 801 802 /* Read AGC accumulator register */ 803 cmd.args[0] = CMD_GET_AGCACC; 804 cmd.args[1] = (u8) state->demod; 805 cmd.len = 2; 806 ret = cx24117_cmd_execute(fe, &cmd); 807 if (ret != 0) 808 return ret; 809 810 ret = cx24117_readregN(state, reg, buf, 2); 811 if (ret != 0) 812 return ret; 813 sig_reading = ((buf[0] & CX24117_SIGNAL_MASK) << 2) | buf[1]; 814 815 *signal_strength = -100 * sig_reading + 94324; 816 817 dev_dbg(&state->priv->i2c->dev, 818 "%s() demod%d raw / cooked = 0x%04x / 0x%04x\n", 819 __func__, state->demod, sig_reading, *signal_strength); 820 821 return 0; 822 } 823 824 static int cx24117_read_snr(struct dvb_frontend *fe, u16 *snr) 825 { 826 struct cx24117_state *state = fe->demodulator_priv; 827 int ret; 828 u8 buf[2]; 829 u8 reg = (state->demod == 0) ? 830 CX24117_REG_QUALITY2_0 : CX24117_REG_QUALITY2_1; 831 832 ret = cx24117_readregN(state, reg, buf, 2); 833 if (ret != 0) 834 return ret; 835 836 *snr = (buf[0] << 8) | buf[1]; 837 838 dev_dbg(&state->priv->i2c->dev, 839 "%s() demod%d snr = 0x%04x\n", 840 __func__, state->demod, *snr); 841 842 return ret; 843 } 844 845 static int cx24117_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) 846 { 847 struct cx24117_state *state = fe->demodulator_priv; 848 enum fe_delivery_system delsys = fe->dtv_property_cache.delivery_system; 849 int ret; 850 u8 buf[2]; 851 u8 reg = (state->demod == 0) ? 852 CX24117_REG_DVBS_UCB2_0 : 853 CX24117_REG_DVBS_UCB2_1; 854 855 switch (delsys) { 856 case SYS_DVBS: 857 break; 858 case SYS_DVBS2: 859 reg += (CX24117_REG_DVBS2_UCB2_0 - CX24117_REG_DVBS_UCB2_0); 860 break; 861 default: 862 return -EINVAL; 863 } 864 865 ret = cx24117_readregN(state, reg, buf, 2); 866 if (ret != 0) 867 return ret; 868 *ucblocks = (buf[0] << 8) | buf[1]; 869 870 dev_dbg(&state->priv->i2c->dev, "%s() demod%d ucb=0x%04x\n", 871 __func__, state->demod, *ucblocks); 872 873 return 0; 874 } 875 876 /* Overwrite the current tuning params, we are about to tune */ 877 static void cx24117_clone_params(struct dvb_frontend *fe) 878 { 879 struct cx24117_state *state = fe->demodulator_priv; 880 state->dcur = state->dnxt; 881 } 882 883 /* Wait for LNB */ 884 static int cx24117_wait_for_lnb(struct dvb_frontend *fe) 885 { 886 struct cx24117_state *state = fe->demodulator_priv; 887 int i; 888 u8 val, reg = (state->demod == 0) ? CX24117_REG_QSTATUS0 : 889 CX24117_REG_QSTATUS1; 890 891 dev_dbg(&state->priv->i2c->dev, "%s() demod%d qstatus = 0x%02x\n", 892 __func__, state->demod, cx24117_readreg(state, reg)); 893 894 /* Wait for up to 300 ms */ 895 for (i = 0; i < 10; i++) { 896 val = cx24117_readreg(state, reg) & 0x01; 897 if (val != 0) 898 return 0; 899 msleep(30); 900 } 901 902 dev_warn(&state->priv->i2c->dev, "%s: demod%d LNB not ready\n", 903 KBUILD_MODNAME, state->demod); 904 905 return -ETIMEDOUT; /* -EBUSY ? */ 906 } 907 908 static int cx24117_set_voltage(struct dvb_frontend *fe, 909 enum fe_sec_voltage voltage) 910 { 911 struct cx24117_state *state = fe->demodulator_priv; 912 struct cx24117_cmd cmd; 913 int ret; 914 u8 reg = (state->demod == 0) ? 0x10 : 0x20; 915 916 dev_dbg(&state->priv->i2c->dev, "%s() demod%d %s\n", 917 __func__, state->demod, 918 voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" : 919 voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : 920 "SEC_VOLTAGE_OFF"); 921 922 /* Prepare a set GPIO logic level CMD */ 923 cmd.args[0] = CMD_SET_GPIOOUT; 924 cmd.args[2] = reg; /* mask */ 925 cmd.len = 3; 926 927 if ((voltage == SEC_VOLTAGE_13) || 928 (voltage == SEC_VOLTAGE_18)) { 929 /* power on LNB */ 930 cmd.args[1] = reg; 931 ret = cx24117_cmd_execute(fe, &cmd); 932 if (ret != 0) 933 return ret; 934 935 ret = cx24117_wait_for_lnb(fe); 936 if (ret != 0) 937 return ret; 938 939 /* Wait for voltage/min repeat delay */ 940 msleep(100); 941 942 /* Set 13V/18V select pin */ 943 cmd.args[0] = CMD_LNBDCLEVEL; 944 cmd.args[1] = state->demod ? 0 : 1; 945 cmd.args[2] = (voltage == SEC_VOLTAGE_18 ? 0x01 : 0x00); 946 cmd.len = 3; 947 ret = cx24117_cmd_execute(fe, &cmd); 948 949 /* Min delay time before DiSEqC send */ 950 msleep(20); 951 } else { 952 /* power off LNB */ 953 cmd.args[1] = 0x00; 954 ret = cx24117_cmd_execute(fe, &cmd); 955 } 956 957 return ret; 958 } 959 960 static int cx24117_set_tone(struct dvb_frontend *fe, 961 enum fe_sec_tone_mode tone) 962 { 963 struct cx24117_state *state = fe->demodulator_priv; 964 struct cx24117_cmd cmd; 965 int ret; 966 967 dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n", 968 __func__, state->demod, tone); 969 if ((tone != SEC_TONE_ON) && (tone != SEC_TONE_OFF)) { 970 dev_warn(&state->priv->i2c->dev, "%s: demod%d invalid tone=%d\n", 971 KBUILD_MODNAME, state->demod, tone); 972 return -EINVAL; 973 } 974 975 /* Wait for LNB ready */ 976 ret = cx24117_wait_for_lnb(fe); 977 if (ret != 0) 978 return ret; 979 980 /* Min delay time after DiSEqC send */ 981 msleep(20); 982 983 /* Set the tone */ 984 cmd.args[0] = CMD_LNBPCBCONFIG; 985 cmd.args[1] = (state->demod ? 0 : 1); 986 cmd.args[2] = 0x00; 987 cmd.args[3] = 0x00; 988 cmd.len = 5; 989 switch (tone) { 990 case SEC_TONE_ON: 991 cmd.args[4] = 0x01; 992 break; 993 case SEC_TONE_OFF: 994 cmd.args[4] = 0x00; 995 break; 996 } 997 998 msleep(20); 999 1000 return cx24117_cmd_execute(fe, &cmd); 1001 } 1002 1003 /* Initialise DiSEqC */ 1004 static int cx24117_diseqc_init(struct dvb_frontend *fe) 1005 { 1006 struct cx24117_state *state = fe->demodulator_priv; 1007 1008 /* Prepare a DiSEqC command */ 1009 state->dsec_cmd.args[0] = CMD_LNBSEND; 1010 1011 /* demod */ 1012 state->dsec_cmd.args[CX24117_DISEQC_DEMOD] = state->demod ? 0 : 1; 1013 1014 /* DiSEqC burst */ 1015 state->dsec_cmd.args[CX24117_DISEQC_BURST] = CX24117_DISEQC_MINI_A; 1016 1017 /* Unknown */ 1018 state->dsec_cmd.args[CX24117_DISEQC_ARG3_2] = 0x02; 1019 state->dsec_cmd.args[CX24117_DISEQC_ARG4_0] = 0x00; 1020 1021 /* Continuation flag? */ 1022 state->dsec_cmd.args[CX24117_DISEQC_ARG5_0] = 0x00; 1023 1024 /* DiSEqC message length */ 1025 state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = 0x00; 1026 1027 /* Command length */ 1028 state->dsec_cmd.len = 7; 1029 1030 return 0; 1031 } 1032 1033 /* Send DiSEqC message */ 1034 static int cx24117_send_diseqc_msg(struct dvb_frontend *fe, 1035 struct dvb_diseqc_master_cmd *d) 1036 { 1037 struct cx24117_state *state = fe->demodulator_priv; 1038 int i, ret; 1039 1040 /* Dump DiSEqC message */ 1041 dev_dbg(&state->priv->i2c->dev, "%s: demod %d (", 1042 __func__, state->demod); 1043 for (i = 0; i < d->msg_len; i++) 1044 dev_dbg(&state->priv->i2c->dev, "0x%02x ", d->msg[i]); 1045 dev_dbg(&state->priv->i2c->dev, ")\n"); 1046 1047 /* Validate length */ 1048 if (d->msg_len > sizeof(d->msg)) 1049 return -EINVAL; 1050 1051 /* DiSEqC message */ 1052 for (i = 0; i < d->msg_len; i++) 1053 state->dsec_cmd.args[CX24117_DISEQC_MSGOFS + i] = d->msg[i]; 1054 1055 /* DiSEqC message length */ 1056 state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = d->msg_len; 1057 1058 /* Command length */ 1059 state->dsec_cmd.len = CX24117_DISEQC_MSGOFS + 1060 state->dsec_cmd.args[CX24117_DISEQC_MSGLEN]; 1061 1062 /* 1063 * Message is sent with derived else cached burst 1064 * 1065 * WRITE PORT GROUP COMMAND 38 1066 * 1067 * 0/A/A: E0 10 38 F0..F3 1068 * 1/B/B: E0 10 38 F4..F7 1069 * 2/C/A: E0 10 38 F8..FB 1070 * 3/D/B: E0 10 38 FC..FF 1071 * 1072 * databyte[3]= 8421:8421 1073 * ABCD:WXYZ 1074 * CLR :SET 1075 * 1076 * WX= PORT SELECT 0..3 (X=TONEBURST) 1077 * Y = VOLTAGE (0=13V, 1=18V) 1078 * Z = BAND (0=LOW, 1=HIGH(22K)) 1079 */ 1080 if (d->msg_len >= 4 && d->msg[2] == 0x38) 1081 state->dsec_cmd.args[CX24117_DISEQC_BURST] = 1082 ((d->msg[3] & 4) >> 2); 1083 1084 dev_dbg(&state->priv->i2c->dev, "%s() demod%d burst=%d\n", 1085 __func__, state->demod, 1086 state->dsec_cmd.args[CX24117_DISEQC_BURST]); 1087 1088 /* Wait for LNB ready */ 1089 ret = cx24117_wait_for_lnb(fe); 1090 if (ret != 0) 1091 return ret; 1092 1093 /* Wait for voltage/min repeat delay */ 1094 msleep(100); 1095 1096 /* Command */ 1097 ret = cx24117_cmd_execute(fe, &state->dsec_cmd); 1098 if (ret != 0) 1099 return ret; 1100 /* 1101 * Wait for send 1102 * 1103 * Eutelsat spec: 1104 * >15ms delay + (XXX determine if FW does this, see set_tone) 1105 * 13.5ms per byte + 1106 * >15ms delay + 1107 * 12.5ms burst + 1108 * >15ms delay (XXX determine if FW does this, see set_tone) 1109 */ 1110 msleep((state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] << 4) + 60); 1111 1112 return 0; 1113 } 1114 1115 /* Send DiSEqC burst */ 1116 static int cx24117_diseqc_send_burst(struct dvb_frontend *fe, 1117 enum fe_sec_mini_cmd burst) 1118 { 1119 struct cx24117_state *state = fe->demodulator_priv; 1120 1121 dev_dbg(&state->priv->i2c->dev, "%s(%d) demod=%d\n", 1122 __func__, burst, state->demod); 1123 1124 /* DiSEqC burst */ 1125 if (burst == SEC_MINI_A) 1126 state->dsec_cmd.args[CX24117_DISEQC_BURST] = 1127 CX24117_DISEQC_MINI_A; 1128 else if (burst == SEC_MINI_B) 1129 state->dsec_cmd.args[CX24117_DISEQC_BURST] = 1130 CX24117_DISEQC_MINI_B; 1131 else 1132 return -EINVAL; 1133 1134 return 0; 1135 } 1136 1137 static int cx24117_get_priv(struct cx24117_priv **priv, 1138 struct i2c_adapter *i2c, u8 client_address) 1139 { 1140 int ret; 1141 1142 mutex_lock(&cx24117_list_mutex); 1143 ret = hybrid_tuner_request_state(struct cx24117_priv, (*priv), 1144 hybrid_tuner_instance_list, i2c, client_address, "cx24117"); 1145 mutex_unlock(&cx24117_list_mutex); 1146 1147 return ret; 1148 } 1149 1150 static void cx24117_release_priv(struct cx24117_priv *priv) 1151 { 1152 mutex_lock(&cx24117_list_mutex); 1153 if (priv != NULL) 1154 hybrid_tuner_release_state(priv); 1155 mutex_unlock(&cx24117_list_mutex); 1156 } 1157 1158 static void cx24117_release(struct dvb_frontend *fe) 1159 { 1160 struct cx24117_state *state = fe->demodulator_priv; 1161 dev_dbg(&state->priv->i2c->dev, "%s demod%d\n", 1162 __func__, state->demod); 1163 cx24117_release_priv(state->priv); 1164 kfree(state); 1165 } 1166 1167 static const struct dvb_frontend_ops cx24117_ops; 1168 1169 struct dvb_frontend *cx24117_attach(const struct cx24117_config *config, 1170 struct i2c_adapter *i2c) 1171 { 1172 struct cx24117_state *state = NULL; 1173 struct cx24117_priv *priv = NULL; 1174 int demod = 0; 1175 1176 /* get the common data struct for both demods */ 1177 demod = cx24117_get_priv(&priv, i2c, config->demod_address); 1178 1179 switch (demod) { 1180 case 0: 1181 dev_err(&i2c->dev, 1182 "%s: Error attaching frontend %d\n", 1183 KBUILD_MODNAME, demod); 1184 goto error1; 1185 break; 1186 case 1: 1187 /* new priv instance */ 1188 priv->i2c = i2c; 1189 priv->demod_address = config->demod_address; 1190 mutex_init(&priv->fe_lock); 1191 break; 1192 default: 1193 /* existing priv instance */ 1194 break; 1195 } 1196 1197 /* allocate memory for the internal state */ 1198 state = kzalloc(sizeof(struct cx24117_state), GFP_KERNEL); 1199 if (state == NULL) 1200 goto error2; 1201 1202 state->demod = demod - 1; 1203 state->priv = priv; 1204 1205 dev_info(&state->priv->i2c->dev, 1206 "%s: Attaching frontend %d\n", 1207 KBUILD_MODNAME, state->demod); 1208 1209 /* create dvb_frontend */ 1210 memcpy(&state->frontend.ops, &cx24117_ops, 1211 sizeof(struct dvb_frontend_ops)); 1212 state->frontend.demodulator_priv = state; 1213 return &state->frontend; 1214 1215 error2: 1216 cx24117_release_priv(priv); 1217 error1: 1218 return NULL; 1219 } 1220 EXPORT_SYMBOL_GPL(cx24117_attach); 1221 1222 /* 1223 * Initialise or wake up device 1224 * 1225 * Power config will reset and load initial firmware if required 1226 */ 1227 static int cx24117_initfe(struct dvb_frontend *fe) 1228 { 1229 struct cx24117_state *state = fe->demodulator_priv; 1230 struct cx24117_cmd cmd; 1231 int ret; 1232 1233 dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", 1234 __func__, state->demod); 1235 1236 mutex_lock(&state->priv->fe_lock); 1237 1238 /* Set sleep mode off */ 1239 cmd.args[0] = CMD_SET_SLEEPMODE; 1240 cmd.args[1] = (state->demod ? 1 : 0); 1241 cmd.args[2] = 0; 1242 cmd.len = 3; 1243 ret = cx24117_cmd_execute_nolock(fe, &cmd); 1244 if (ret != 0) 1245 goto exit; 1246 1247 ret = cx24117_diseqc_init(fe); 1248 if (ret != 0) 1249 goto exit; 1250 1251 /* Set BER control */ 1252 cmd.args[0] = CMD_BERCTRL; 1253 cmd.args[1] = (state->demod ? 1 : 0); 1254 cmd.args[2] = 0x10; 1255 cmd.args[3] = 0x10; 1256 cmd.len = 4; 1257 ret = cx24117_cmd_execute_nolock(fe, &cmd); 1258 if (ret != 0) 1259 goto exit; 1260 1261 /* Set RS correction (enable/disable) */ 1262 cmd.args[0] = CMD_ENABLERSCORR; 1263 cmd.args[1] = (state->demod ? 1 : 0); 1264 cmd.args[2] = CX24117_OCC; 1265 cmd.len = 3; 1266 ret = cx24117_cmd_execute_nolock(fe, &cmd); 1267 if (ret != 0) 1268 goto exit; 1269 1270 /* Set GPIO direction */ 1271 /* Set as output - controls LNB power on/off */ 1272 cmd.args[0] = CMD_SET_GPIODIR; 1273 cmd.args[1] = 0x30; 1274 cmd.args[2] = 0x30; 1275 cmd.len = 3; 1276 ret = cx24117_cmd_execute_nolock(fe, &cmd); 1277 1278 exit: 1279 mutex_unlock(&state->priv->fe_lock); 1280 1281 return ret; 1282 } 1283 1284 /* 1285 * Put device to sleep 1286 */ 1287 static int cx24117_sleep(struct dvb_frontend *fe) 1288 { 1289 struct cx24117_state *state = fe->demodulator_priv; 1290 struct cx24117_cmd cmd; 1291 1292 dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", 1293 __func__, state->demod); 1294 1295 /* Set sleep mode on */ 1296 cmd.args[0] = CMD_SET_SLEEPMODE; 1297 cmd.args[1] = (state->demod ? 1 : 0); 1298 cmd.args[2] = 1; 1299 cmd.len = 3; 1300 return cx24117_cmd_execute(fe, &cmd); 1301 } 1302 1303 /* dvb-core told us to tune, the tv property cache will be complete, 1304 * it's safe for is to pull values and use them for tuning purposes. 1305 */ 1306 static int cx24117_set_frontend(struct dvb_frontend *fe) 1307 { 1308 struct cx24117_state *state = fe->demodulator_priv; 1309 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1310 struct cx24117_cmd cmd; 1311 enum fe_status tunerstat; 1312 int i, status, ret, retune = 1; 1313 u8 reg_clkdiv, reg_ratediv; 1314 1315 dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", 1316 __func__, state->demod); 1317 1318 switch (c->delivery_system) { 1319 case SYS_DVBS: 1320 dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S\n", 1321 __func__, state->demod); 1322 1323 /* Only QPSK is supported for DVB-S */ 1324 if (c->modulation != QPSK) { 1325 dev_dbg(&state->priv->i2c->dev, 1326 "%s() demod%d unsupported modulation (%d)\n", 1327 __func__, state->demod, c->modulation); 1328 return -EINVAL; 1329 } 1330 1331 /* Pilot doesn't exist in DVB-S, turn bit off */ 1332 state->dnxt.pilot_val = CX24117_PILOT_OFF; 1333 1334 /* DVB-S only supports 0.35 */ 1335 state->dnxt.rolloff_val = CX24117_ROLLOFF_035; 1336 break; 1337 1338 case SYS_DVBS2: 1339 dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S2\n", 1340 __func__, state->demod); 1341 1342 /* 1343 * NBC 8PSK/QPSK with DVB-S is supported for DVB-S2, 1344 * but not hardware auto detection 1345 */ 1346 if (c->modulation != PSK_8 && c->modulation != QPSK) { 1347 dev_dbg(&state->priv->i2c->dev, 1348 "%s() demod%d unsupported modulation (%d)\n", 1349 __func__, state->demod, c->modulation); 1350 return -EOPNOTSUPP; 1351 } 1352 1353 switch (c->pilot) { 1354 case PILOT_AUTO: 1355 state->dnxt.pilot_val = CX24117_PILOT_AUTO; 1356 break; 1357 case PILOT_OFF: 1358 state->dnxt.pilot_val = CX24117_PILOT_OFF; 1359 break; 1360 case PILOT_ON: 1361 state->dnxt.pilot_val = CX24117_PILOT_ON; 1362 break; 1363 default: 1364 dev_dbg(&state->priv->i2c->dev, 1365 "%s() demod%d unsupported pilot mode (%d)\n", 1366 __func__, state->demod, c->pilot); 1367 return -EOPNOTSUPP; 1368 } 1369 1370 switch (c->rolloff) { 1371 case ROLLOFF_20: 1372 state->dnxt.rolloff_val = CX24117_ROLLOFF_020; 1373 break; 1374 case ROLLOFF_25: 1375 state->dnxt.rolloff_val = CX24117_ROLLOFF_025; 1376 break; 1377 case ROLLOFF_35: 1378 state->dnxt.rolloff_val = CX24117_ROLLOFF_035; 1379 break; 1380 case ROLLOFF_AUTO: 1381 state->dnxt.rolloff_val = CX24117_ROLLOFF_035; 1382 /* soft-auto rolloff */ 1383 retune = 3; 1384 break; 1385 default: 1386 dev_warn(&state->priv->i2c->dev, 1387 "%s: demod%d unsupported rolloff (%d)\n", 1388 KBUILD_MODNAME, state->demod, c->rolloff); 1389 return -EOPNOTSUPP; 1390 } 1391 break; 1392 1393 default: 1394 dev_warn(&state->priv->i2c->dev, 1395 "%s: demod %d unsupported delivery system (%d)\n", 1396 KBUILD_MODNAME, state->demod, c->delivery_system); 1397 return -EINVAL; 1398 } 1399 1400 state->dnxt.delsys = c->delivery_system; 1401 state->dnxt.modulation = c->modulation; 1402 state->dnxt.frequency = c->frequency; 1403 state->dnxt.pilot = c->pilot; 1404 state->dnxt.rolloff = c->rolloff; 1405 1406 ret = cx24117_set_inversion(state, c->inversion); 1407 if (ret != 0) 1408 return ret; 1409 1410 ret = cx24117_set_fec(state, 1411 c->delivery_system, c->modulation, c->fec_inner); 1412 if (ret != 0) 1413 return ret; 1414 1415 ret = cx24117_set_symbolrate(state, c->symbol_rate); 1416 if (ret != 0) 1417 return ret; 1418 1419 /* discard the 'current' tuning parameters and prepare to tune */ 1420 cx24117_clone_params(fe); 1421 1422 dev_dbg(&state->priv->i2c->dev, 1423 "%s: delsys = %d\n", __func__, state->dcur.delsys); 1424 dev_dbg(&state->priv->i2c->dev, 1425 "%s: modulation = %d\n", __func__, state->dcur.modulation); 1426 dev_dbg(&state->priv->i2c->dev, 1427 "%s: frequency = %d\n", __func__, state->dcur.frequency); 1428 dev_dbg(&state->priv->i2c->dev, 1429 "%s: pilot = %d (val = 0x%02x)\n", __func__, 1430 state->dcur.pilot, state->dcur.pilot_val); 1431 dev_dbg(&state->priv->i2c->dev, 1432 "%s: retune = %d\n", __func__, retune); 1433 dev_dbg(&state->priv->i2c->dev, 1434 "%s: rolloff = %d (val = 0x%02x)\n", __func__, 1435 state->dcur.rolloff, state->dcur.rolloff_val); 1436 dev_dbg(&state->priv->i2c->dev, 1437 "%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate); 1438 dev_dbg(&state->priv->i2c->dev, 1439 "%s: FEC = %d (mask/val = 0x%02x/0x%02x)\n", __func__, 1440 state->dcur.fec, state->dcur.fec_mask, state->dcur.fec_val); 1441 dev_dbg(&state->priv->i2c->dev, 1442 "%s: Inversion = %d (val = 0x%02x)\n", __func__, 1443 state->dcur.inversion, state->dcur.inversion_val); 1444 1445 /* Prepare a tune request */ 1446 cmd.args[0] = CMD_TUNEREQUEST; 1447 1448 /* demod */ 1449 cmd.args[1] = state->demod; 1450 1451 /* Frequency */ 1452 cmd.args[2] = (state->dcur.frequency & 0xff0000) >> 16; 1453 cmd.args[3] = (state->dcur.frequency & 0x00ff00) >> 8; 1454 cmd.args[4] = (state->dcur.frequency & 0x0000ff); 1455 1456 /* Symbol Rate */ 1457 cmd.args[5] = ((state->dcur.symbol_rate / 1000) & 0xff00) >> 8; 1458 cmd.args[6] = ((state->dcur.symbol_rate / 1000) & 0x00ff); 1459 1460 /* Automatic Inversion */ 1461 cmd.args[7] = state->dcur.inversion_val; 1462 1463 /* Modulation / FEC / Pilot */ 1464 cmd.args[8] = state->dcur.fec_val | state->dcur.pilot_val; 1465 1466 cmd.args[9] = CX24117_SEARCH_RANGE_KHZ >> 8; 1467 cmd.args[10] = CX24117_SEARCH_RANGE_KHZ & 0xff; 1468 1469 cmd.args[11] = state->dcur.rolloff_val; 1470 cmd.args[12] = state->dcur.fec_mask; 1471 1472 if (state->dcur.symbol_rate > 30000000) { 1473 reg_ratediv = 0x04; 1474 reg_clkdiv = 0x02; 1475 } else if (state->dcur.symbol_rate > 10000000) { 1476 reg_ratediv = 0x06; 1477 reg_clkdiv = 0x03; 1478 } else { 1479 reg_ratediv = 0x0a; 1480 reg_clkdiv = 0x05; 1481 } 1482 1483 cmd.args[13] = reg_ratediv; 1484 cmd.args[14] = reg_clkdiv; 1485 1486 cx24117_writereg(state, (state->demod == 0) ? 1487 CX24117_REG_CLKDIV0 : CX24117_REG_CLKDIV1, reg_clkdiv); 1488 cx24117_writereg(state, (state->demod == 0) ? 1489 CX24117_REG_RATEDIV0 : CX24117_REG_RATEDIV1, reg_ratediv); 1490 1491 cmd.args[15] = CX24117_PNE; 1492 cmd.len = 16; 1493 1494 do { 1495 /* Reset status register */ 1496 status = cx24117_readreg(state, (state->demod == 0) ? 1497 CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1) & 1498 CX24117_SIGNAL_MASK; 1499 1500 dev_dbg(&state->priv->i2c->dev, 1501 "%s() demod%d status_setfe = %02x\n", 1502 __func__, state->demod, status); 1503 1504 cx24117_writereg(state, (state->demod == 0) ? 1505 CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1, status); 1506 1507 /* Tune */ 1508 ret = cx24117_cmd_execute(fe, &cmd); 1509 if (ret != 0) 1510 break; 1511 1512 /* 1513 * Wait for up to 500 ms before retrying 1514 * 1515 * If we are able to tune then generally it occurs within 100ms. 1516 * If it takes longer, try a different rolloff setting. 1517 */ 1518 for (i = 0; i < 50; i++) { 1519 cx24117_read_status(fe, &tunerstat); 1520 status = tunerstat & (FE_HAS_SIGNAL | FE_HAS_SYNC); 1521 if (status == (FE_HAS_SIGNAL | FE_HAS_SYNC)) { 1522 dev_dbg(&state->priv->i2c->dev, 1523 "%s() demod%d tuned\n", 1524 __func__, state->demod); 1525 return 0; 1526 } 1527 msleep(20); 1528 } 1529 1530 dev_dbg(&state->priv->i2c->dev, "%s() demod%d not tuned\n", 1531 __func__, state->demod); 1532 1533 /* try next rolloff value */ 1534 if (state->dcur.rolloff == 3) 1535 cmd.args[11]--; 1536 1537 } while (--retune); 1538 return -EINVAL; 1539 } 1540 1541 static int cx24117_tune(struct dvb_frontend *fe, bool re_tune, 1542 unsigned int mode_flags, unsigned int *delay, enum fe_status *status) 1543 { 1544 struct cx24117_state *state = fe->demodulator_priv; 1545 1546 dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", 1547 __func__, state->demod); 1548 1549 *delay = HZ / 5; 1550 if (re_tune) { 1551 int ret = cx24117_set_frontend(fe); 1552 if (ret) 1553 return ret; 1554 } 1555 return cx24117_read_status(fe, status); 1556 } 1557 1558 static enum dvbfe_algo cx24117_get_algo(struct dvb_frontend *fe) 1559 { 1560 return DVBFE_ALGO_HW; 1561 } 1562 1563 static int cx24117_get_frontend(struct dvb_frontend *fe, 1564 struct dtv_frontend_properties *c) 1565 { 1566 struct cx24117_state *state = fe->demodulator_priv; 1567 struct cx24117_cmd cmd; 1568 u8 reg, st, inv; 1569 int ret, idx; 1570 unsigned int freq; 1571 short srate_os, freq_os; 1572 1573 u8 buf[0x1f-4]; 1574 1575 /* Read current tune parameters */ 1576 cmd.args[0] = CMD_GETCTLACC; 1577 cmd.args[1] = (u8) state->demod; 1578 cmd.len = 2; 1579 ret = cx24117_cmd_execute(fe, &cmd); 1580 if (ret != 0) 1581 return ret; 1582 1583 /* read all required regs at once */ 1584 reg = (state->demod == 0) ? CX24117_REG_FREQ3_0 : CX24117_REG_FREQ3_1; 1585 ret = cx24117_readregN(state, reg, buf, 0x1f-4); 1586 if (ret != 0) 1587 return ret; 1588 1589 st = buf[5]; 1590 1591 /* get spectral inversion */ 1592 inv = (((state->demod == 0) ? ~st : st) >> 6) & 1; 1593 if (inv == 0) 1594 c->inversion = INVERSION_OFF; 1595 else 1596 c->inversion = INVERSION_ON; 1597 1598 /* modulation and fec */ 1599 idx = st & 0x3f; 1600 if (c->delivery_system == SYS_DVBS2) { 1601 if (idx > 11) 1602 idx += 9; 1603 else 1604 idx += 7; 1605 } 1606 1607 c->modulation = cx24117_modfec_modes[idx].modulation; 1608 c->fec_inner = cx24117_modfec_modes[idx].fec; 1609 1610 /* frequency */ 1611 freq = (buf[0] << 16) | (buf[1] << 8) | buf[2]; 1612 freq_os = (buf[8] << 8) | buf[9]; 1613 c->frequency = freq + freq_os; 1614 1615 /* symbol rate */ 1616 srate_os = (buf[10] << 8) | buf[11]; 1617 c->symbol_rate = -1000 * srate_os + state->dcur.symbol_rate; 1618 return 0; 1619 } 1620 1621 static const struct dvb_frontend_ops cx24117_ops = { 1622 .delsys = { SYS_DVBS, SYS_DVBS2 }, 1623 .info = { 1624 .name = "Conexant CX24117/CX24132", 1625 .frequency_min = 950000, 1626 .frequency_max = 2150000, 1627 .frequency_stepsize = 1011, /* kHz for QPSK frontends */ 1628 .frequency_tolerance = 5000, 1629 .symbol_rate_min = 1000000, 1630 .symbol_rate_max = 45000000, 1631 .caps = FE_CAN_INVERSION_AUTO | 1632 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | 1633 FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | 1634 FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | 1635 FE_CAN_2G_MODULATION | 1636 FE_CAN_QPSK | FE_CAN_RECOVER 1637 }, 1638 1639 .release = cx24117_release, 1640 1641 .init = cx24117_initfe, 1642 .sleep = cx24117_sleep, 1643 .read_status = cx24117_read_status, 1644 .read_ber = cx24117_read_ber, 1645 .read_signal_strength = cx24117_read_signal_strength, 1646 .read_snr = cx24117_read_snr, 1647 .read_ucblocks = cx24117_read_ucblocks, 1648 .set_tone = cx24117_set_tone, 1649 .set_voltage = cx24117_set_voltage, 1650 .diseqc_send_master_cmd = cx24117_send_diseqc_msg, 1651 .diseqc_send_burst = cx24117_diseqc_send_burst, 1652 .get_frontend_algo = cx24117_get_algo, 1653 .tune = cx24117_tune, 1654 1655 .set_frontend = cx24117_set_frontend, 1656 .get_frontend = cx24117_get_frontend, 1657 }; 1658 1659 1660 MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24117/cx24132 hardware"); 1661 MODULE_AUTHOR("Luis Alves (ljalvs@gmail.com)"); 1662 MODULE_LICENSE("GPL"); 1663 MODULE_VERSION("1.1"); 1664 MODULE_FIRMWARE(CX24117_DEFAULT_FIRMWARE); 1665 1666