Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Support for LG2160 - ATSC/MH |
| 3 | * |
| 4 | * Copyright (C) 2010 Michael Krufky <mkrufky@linuxtv.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | #include <linux/jiffies.h> |
| 23 | #include <linux/dvb/frontend.h> |
| 24 | #include "lg2160.h" |
| 25 | |
| 26 | static int debug; |
| 27 | module_param(debug, int, 0644); |
| 28 | MODULE_PARM_DESC(debug, "set debug level (info=1, reg=2 (or-able))"); |
| 29 | |
| 30 | #define DBG_INFO 1 |
| 31 | #define DBG_REG 2 |
| 32 | |
| 33 | #define lg_printk(kern, fmt, arg...) \ |
| 34 | printk(kern "%s: " fmt, __func__, ##arg) |
| 35 | |
| 36 | #define lg_info(fmt, arg...) printk(KERN_INFO "lg2160: " fmt, ##arg) |
| 37 | #define lg_warn(fmt, arg...) lg_printk(KERN_WARNING, fmt, ##arg) |
| 38 | #define lg_err(fmt, arg...) lg_printk(KERN_ERR, fmt, ##arg) |
| 39 | #define lg_dbg(fmt, arg...) if (debug & DBG_INFO) \ |
| 40 | lg_printk(KERN_DEBUG, fmt, ##arg) |
| 41 | #define lg_reg(fmt, arg...) if (debug & DBG_REG) \ |
| 42 | lg_printk(KERN_DEBUG, fmt, ##arg) |
| 43 | |
| 44 | #define lg_fail(ret) \ |
| 45 | ({ \ |
| 46 | int __ret; \ |
| 47 | __ret = (ret < 0); \ |
| 48 | if (__ret) \ |
| 49 | lg_err("error %d on line %d\n", ret, __LINE__); \ |
| 50 | __ret; \ |
| 51 | }) |
| 52 | |
| 53 | struct lg216x_state { |
| 54 | struct i2c_adapter *i2c_adap; |
| 55 | const struct lg2160_config *cfg; |
| 56 | |
| 57 | struct dvb_frontend frontend; |
| 58 | |
| 59 | u32 current_frequency; |
| 60 | u8 parade_id; |
| 61 | u8 fic_ver; |
| 62 | unsigned int last_reset; |
| 63 | }; |
| 64 | |
| 65 | /* ------------------------------------------------------------------------ */ |
| 66 | |
| 67 | static int lg216x_write_reg(struct lg216x_state *state, u16 reg, u8 val) |
| 68 | { |
| 69 | int ret; |
| 70 | u8 buf[] = { reg >> 8, reg & 0xff, val }; |
| 71 | struct i2c_msg msg = { |
| 72 | .addr = state->cfg->i2c_addr, .flags = 0, |
| 73 | .buf = buf, .len = 3, |
| 74 | }; |
| 75 | |
| 76 | lg_reg("reg: 0x%04x, val: 0x%02x\n", reg, val); |
| 77 | |
| 78 | ret = i2c_transfer(state->i2c_adap, &msg, 1); |
| 79 | |
| 80 | if (ret != 1) { |
| 81 | lg_err("error (addr %02x %02x <- %02x, err = %i)\n", |
| 82 | msg.buf[0], msg.buf[1], msg.buf[2], ret); |
| 83 | if (ret < 0) |
| 84 | return ret; |
| 85 | else |
| 86 | return -EREMOTEIO; |
| 87 | } |
| 88 | return 0; |
| 89 | } |
| 90 | |
| 91 | static int lg216x_read_reg(struct lg216x_state *state, u16 reg, u8 *val) |
| 92 | { |
| 93 | int ret; |
| 94 | u8 reg_buf[] = { reg >> 8, reg & 0xff }; |
| 95 | struct i2c_msg msg[] = { |
| 96 | { .addr = state->cfg->i2c_addr, |
| 97 | .flags = 0, .buf = reg_buf, .len = 2 }, |
| 98 | { .addr = state->cfg->i2c_addr, |
| 99 | .flags = I2C_M_RD, .buf = val, .len = 1 }, |
| 100 | }; |
| 101 | |
| 102 | lg_reg("reg: 0x%04x\n", reg); |
| 103 | |
| 104 | ret = i2c_transfer(state->i2c_adap, msg, 2); |
| 105 | |
| 106 | if (ret != 2) { |
| 107 | lg_err("error (addr %02x reg %04x error (ret == %i)\n", |
| 108 | state->cfg->i2c_addr, reg, ret); |
| 109 | if (ret < 0) |
| 110 | return ret; |
| 111 | else |
| 112 | return -EREMOTEIO; |
| 113 | } |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | struct lg216x_reg { |
| 118 | u16 reg; |
| 119 | u8 val; |
| 120 | }; |
| 121 | |
| 122 | static int lg216x_write_regs(struct lg216x_state *state, |
| 123 | struct lg216x_reg *regs, int len) |
| 124 | { |
| 125 | int i, ret; |
| 126 | |
| 127 | lg_reg("writing %d registers...\n", len); |
| 128 | |
Michael Krufky | bffaecc | 2012-05-21 12:28:14 -0300 | [diff] [blame] | 129 | for (i = 0; i < len; i++) { |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 130 | ret = lg216x_write_reg(state, regs[i].reg, regs[i].val); |
| 131 | if (lg_fail(ret)) |
| 132 | return ret; |
| 133 | } |
| 134 | return 0; |
| 135 | } |
| 136 | |
| 137 | static int lg216x_set_reg_bit(struct lg216x_state *state, |
| 138 | u16 reg, int bit, int onoff) |
| 139 | { |
| 140 | u8 val; |
| 141 | int ret; |
| 142 | |
| 143 | lg_reg("reg: 0x%04x, bit: %d, level: %d\n", reg, bit, onoff); |
| 144 | |
| 145 | ret = lg216x_read_reg(state, reg, &val); |
| 146 | if (lg_fail(ret)) |
| 147 | goto fail; |
| 148 | |
| 149 | val &= ~(1 << bit); |
| 150 | val |= (onoff & 1) << bit; |
| 151 | |
| 152 | ret = lg216x_write_reg(state, reg, val); |
| 153 | lg_fail(ret); |
| 154 | fail: |
| 155 | return ret; |
| 156 | } |
| 157 | |
| 158 | /* ------------------------------------------------------------------------ */ |
| 159 | |
| 160 | static int lg216x_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) |
| 161 | { |
| 162 | struct lg216x_state *state = fe->demodulator_priv; |
| 163 | int ret; |
| 164 | |
| 165 | if (state->cfg->deny_i2c_rptr) |
| 166 | return 0; |
| 167 | |
| 168 | lg_dbg("(%d)\n", enable); |
| 169 | |
| 170 | ret = lg216x_set_reg_bit(state, 0x0000, 0, enable ? 0 : 1); |
| 171 | |
| 172 | msleep(1); |
| 173 | |
| 174 | return ret; |
| 175 | } |
| 176 | |
| 177 | static int lg216x_soft_reset(struct lg216x_state *state) |
| 178 | { |
| 179 | int ret; |
| 180 | |
| 181 | lg_dbg("\n"); |
| 182 | |
| 183 | ret = lg216x_write_reg(state, 0x0002, 0x00); |
| 184 | if (lg_fail(ret)) |
| 185 | goto fail; |
| 186 | |
| 187 | msleep(20); |
| 188 | ret = lg216x_write_reg(state, 0x0002, 0x01); |
| 189 | if (lg_fail(ret)) |
| 190 | goto fail; |
| 191 | |
| 192 | state->last_reset = jiffies_to_msecs(jiffies); |
| 193 | fail: |
| 194 | return ret; |
| 195 | } |
| 196 | |
| 197 | static int lg216x_initialize(struct lg216x_state *state) |
| 198 | { |
| 199 | int ret; |
| 200 | |
| 201 | static struct lg216x_reg lg2160_init[] = { |
| 202 | #if 0 |
| 203 | { .reg = 0x0015, .val = 0xe6 }, |
| 204 | #else |
| 205 | { .reg = 0x0015, .val = 0xf7 }, |
| 206 | { .reg = 0x001b, .val = 0x52 }, |
| 207 | { .reg = 0x0208, .val = 0x00 }, |
| 208 | { .reg = 0x0209, .val = 0x82 }, |
| 209 | { .reg = 0x0210, .val = 0xf9 }, |
| 210 | { .reg = 0x020a, .val = 0x00 }, |
| 211 | { .reg = 0x020b, .val = 0x82 }, |
| 212 | { .reg = 0x020d, .val = 0x28 }, |
| 213 | { .reg = 0x020f, .val = 0x14 }, |
| 214 | #endif |
| 215 | }; |
| 216 | |
| 217 | static struct lg216x_reg lg2161_init[] = { |
| 218 | { .reg = 0x0000, .val = 0x41 }, |
| 219 | { .reg = 0x0001, .val = 0xfb }, |
| 220 | { .reg = 0x0216, .val = 0x00 }, |
| 221 | { .reg = 0x0219, .val = 0x00 }, |
| 222 | { .reg = 0x021b, .val = 0x55 }, |
| 223 | { .reg = 0x0606, .val = 0x0a }, |
| 224 | }; |
| 225 | |
| 226 | switch (state->cfg->lg_chip) { |
| 227 | case LG2160: |
| 228 | ret = lg216x_write_regs(state, |
| 229 | lg2160_init, ARRAY_SIZE(lg2160_init)); |
| 230 | break; |
| 231 | case LG2161: |
| 232 | ret = lg216x_write_regs(state, |
| 233 | lg2161_init, ARRAY_SIZE(lg2161_init)); |
| 234 | break; |
| 235 | default: |
| 236 | ret = -EINVAL; |
| 237 | break; |
| 238 | } |
| 239 | if (lg_fail(ret)) |
| 240 | goto fail; |
| 241 | |
| 242 | ret = lg216x_soft_reset(state); |
| 243 | lg_fail(ret); |
| 244 | fail: |
| 245 | return ret; |
| 246 | } |
| 247 | |
| 248 | /* ------------------------------------------------------------------------ */ |
| 249 | |
| 250 | static int lg216x_set_if(struct lg216x_state *state) |
| 251 | { |
| 252 | u8 val; |
| 253 | int ret; |
| 254 | |
| 255 | lg_dbg("%d KHz\n", state->cfg->if_khz); |
| 256 | |
| 257 | ret = lg216x_read_reg(state, 0x0132, &val); |
| 258 | if (lg_fail(ret)) |
| 259 | goto fail; |
| 260 | |
| 261 | val &= 0xfb; |
| 262 | val |= (0 == state->cfg->if_khz) ? 0x04 : 0x00; |
| 263 | |
| 264 | ret = lg216x_write_reg(state, 0x0132, val); |
| 265 | lg_fail(ret); |
| 266 | |
| 267 | /* if NOT zero IF, 6 MHz is the default */ |
| 268 | fail: |
| 269 | return ret; |
| 270 | } |
| 271 | |
| 272 | /* ------------------------------------------------------------------------ */ |
| 273 | |
| 274 | static int lg2160_agc_fix(struct lg216x_state *state, |
| 275 | int if_agc_fix, int rf_agc_fix) |
| 276 | { |
| 277 | u8 val; |
| 278 | int ret; |
| 279 | |
| 280 | ret = lg216x_read_reg(state, 0x0100, &val); |
| 281 | if (lg_fail(ret)) |
| 282 | goto fail; |
| 283 | |
| 284 | val &= 0xf3; |
| 285 | val |= (if_agc_fix) ? 0x08 : 0x00; |
| 286 | val |= (rf_agc_fix) ? 0x04 : 0x00; |
| 287 | |
| 288 | ret = lg216x_write_reg(state, 0x0100, val); |
| 289 | lg_fail(ret); |
| 290 | fail: |
| 291 | return ret; |
| 292 | } |
| 293 | |
| 294 | #if 0 |
| 295 | static int lg2160_agc_freeze(struct lg216x_state *state, |
| 296 | int if_agc_freeze, int rf_agc_freeze) |
| 297 | { |
| 298 | u8 val; |
| 299 | int ret; |
| 300 | |
| 301 | ret = lg216x_read_reg(state, 0x0100, &val); |
| 302 | if (lg_fail(ret)) |
| 303 | goto fail; |
| 304 | |
| 305 | val &= 0xcf; |
| 306 | val |= (if_agc_freeze) ? 0x20 : 0x00; |
| 307 | val |= (rf_agc_freeze) ? 0x10 : 0x00; |
| 308 | |
| 309 | ret = lg216x_write_reg(state, 0x0100, val); |
| 310 | lg_fail(ret); |
| 311 | fail: |
| 312 | return ret; |
| 313 | } |
| 314 | #endif |
| 315 | |
| 316 | static int lg2160_agc_polarity(struct lg216x_state *state, |
| 317 | int if_agc_polarity, int rf_agc_polarity) |
| 318 | { |
| 319 | u8 val; |
| 320 | int ret; |
| 321 | |
| 322 | ret = lg216x_read_reg(state, 0x0100, &val); |
| 323 | if (lg_fail(ret)) |
| 324 | goto fail; |
| 325 | |
| 326 | val &= 0xfc; |
| 327 | val |= (if_agc_polarity) ? 0x02 : 0x00; |
| 328 | val |= (rf_agc_polarity) ? 0x01 : 0x00; |
| 329 | |
| 330 | ret = lg216x_write_reg(state, 0x0100, val); |
| 331 | lg_fail(ret); |
| 332 | fail: |
| 333 | return ret; |
| 334 | } |
| 335 | |
| 336 | static int lg2160_tuner_pwr_save_polarity(struct lg216x_state *state, |
| 337 | int polarity) |
| 338 | { |
| 339 | u8 val; |
| 340 | int ret; |
| 341 | |
| 342 | ret = lg216x_read_reg(state, 0x0008, &val); |
| 343 | if (lg_fail(ret)) |
| 344 | goto fail; |
| 345 | |
| 346 | val &= 0xfe; |
| 347 | val |= (polarity) ? 0x01 : 0x00; |
| 348 | |
| 349 | ret = lg216x_write_reg(state, 0x0008, val); |
| 350 | lg_fail(ret); |
| 351 | fail: |
| 352 | return ret; |
| 353 | } |
| 354 | |
| 355 | static int lg2160_spectrum_polarity(struct lg216x_state *state, |
| 356 | int inverted) |
| 357 | { |
| 358 | u8 val; |
| 359 | int ret; |
| 360 | |
| 361 | ret = lg216x_read_reg(state, 0x0132, &val); |
| 362 | if (lg_fail(ret)) |
| 363 | goto fail; |
| 364 | |
| 365 | val &= 0xfd; |
| 366 | val |= (inverted) ? 0x02 : 0x00; |
| 367 | |
| 368 | ret = lg216x_write_reg(state, 0x0132, val); |
| 369 | lg_fail(ret); |
| 370 | fail: |
| 371 | return lg216x_soft_reset(state); |
| 372 | } |
| 373 | |
| 374 | static int lg2160_tuner_pwr_save(struct lg216x_state *state, int onoff) |
| 375 | { |
| 376 | u8 val; |
| 377 | int ret; |
| 378 | |
| 379 | ret = lg216x_read_reg(state, 0x0007, &val); |
| 380 | if (lg_fail(ret)) |
| 381 | goto fail; |
| 382 | |
| 383 | val &= 0xbf; |
| 384 | val |= (onoff) ? 0x40 : 0x00; |
| 385 | |
| 386 | ret = lg216x_write_reg(state, 0x0007, val); |
| 387 | lg_fail(ret); |
| 388 | fail: |
| 389 | return ret; |
| 390 | } |
| 391 | |
| 392 | static int lg216x_set_parade(struct lg216x_state *state, int id) |
| 393 | { |
| 394 | int ret; |
| 395 | |
| 396 | ret = lg216x_write_reg(state, 0x013e, id & 0x7f); |
| 397 | if (lg_fail(ret)) |
| 398 | goto fail; |
| 399 | |
| 400 | state->parade_id = id & 0x7f; |
| 401 | fail: |
| 402 | return ret; |
| 403 | } |
| 404 | |
| 405 | static int lg216x_set_ensemble(struct lg216x_state *state, int id) |
| 406 | { |
| 407 | int ret; |
| 408 | u16 reg; |
| 409 | u8 val; |
| 410 | |
| 411 | switch (state->cfg->lg_chip) { |
| 412 | case LG2160: |
| 413 | reg = 0x0400; |
| 414 | break; |
| 415 | case LG2161: |
Mauro Carvalho Chehab | 5444a1b | 2012-05-20 10:13:23 -0300 | [diff] [blame] | 416 | default: |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 417 | reg = 0x0500; |
| 418 | break; |
| 419 | } |
| 420 | |
| 421 | ret = lg216x_read_reg(state, reg, &val); |
| 422 | if (lg_fail(ret)) |
| 423 | goto fail; |
| 424 | |
| 425 | val &= 0xfe; |
| 426 | val |= (id) ? 0x01 : 0x00; |
| 427 | |
| 428 | ret = lg216x_write_reg(state, reg, val); |
| 429 | lg_fail(ret); |
| 430 | fail: |
| 431 | return ret; |
| 432 | } |
| 433 | |
| 434 | static int lg2160_set_spi_clock(struct lg216x_state *state) |
| 435 | { |
| 436 | u8 val; |
| 437 | int ret; |
| 438 | |
| 439 | ret = lg216x_read_reg(state, 0x0014, &val); |
| 440 | if (lg_fail(ret)) |
| 441 | goto fail; |
| 442 | |
| 443 | val &= 0xf3; |
| 444 | val |= (state->cfg->spi_clock << 2); |
| 445 | |
| 446 | ret = lg216x_write_reg(state, 0x0014, val); |
| 447 | lg_fail(ret); |
| 448 | fail: |
| 449 | return ret; |
| 450 | } |
| 451 | |
| 452 | static int lg2161_set_output_interface(struct lg216x_state *state) |
| 453 | { |
| 454 | u8 val; |
| 455 | int ret; |
| 456 | |
| 457 | ret = lg216x_read_reg(state, 0x0014, &val); |
| 458 | if (lg_fail(ret)) |
| 459 | goto fail; |
| 460 | |
| 461 | val &= ~0x07; |
| 462 | val |= state->cfg->output_if; /* FIXME: needs sanity check */ |
| 463 | |
| 464 | ret = lg216x_write_reg(state, 0x0014, val); |
| 465 | lg_fail(ret); |
| 466 | fail: |
| 467 | return ret; |
| 468 | } |
| 469 | |
| 470 | static int lg216x_enable_fic(struct lg216x_state *state, int onoff) |
| 471 | { |
| 472 | int ret; |
| 473 | |
| 474 | ret = lg216x_write_reg(state, 0x0017, 0x23); |
| 475 | if (lg_fail(ret)) |
| 476 | goto fail; |
| 477 | |
| 478 | ret = lg216x_write_reg(state, 0x0016, 0xfc); |
| 479 | if (lg_fail(ret)) |
| 480 | goto fail; |
| 481 | |
| 482 | switch (state->cfg->lg_chip) { |
| 483 | case LG2160: |
| 484 | ret = lg216x_write_reg(state, 0x0016, |
| 485 | 0xfc | ((onoff) ? 0x02 : 0x00)); |
| 486 | break; |
| 487 | case LG2161: |
| 488 | ret = lg216x_write_reg(state, 0x0016, (onoff) ? 0x10 : 0x00); |
| 489 | break; |
| 490 | } |
| 491 | if (lg_fail(ret)) |
| 492 | goto fail; |
| 493 | |
| 494 | ret = lg216x_initialize(state); |
| 495 | if (lg_fail(ret)) |
| 496 | goto fail; |
| 497 | |
| 498 | if (onoff) { |
| 499 | ret = lg216x_write_reg(state, 0x0017, 0x03); |
| 500 | lg_fail(ret); |
| 501 | } |
| 502 | fail: |
| 503 | return ret; |
| 504 | } |
| 505 | |
| 506 | /* ------------------------------------------------------------------------ */ |
| 507 | |
| 508 | static int lg216x_get_fic_version(struct lg216x_state *state, u8 *ficver) |
| 509 | { |
| 510 | u8 val; |
| 511 | int ret; |
| 512 | |
| 513 | *ficver = 0xff; /* invalid value */ |
| 514 | |
| 515 | ret = lg216x_read_reg(state, 0x0128, &val); |
| 516 | if (lg_fail(ret)) |
| 517 | goto fail; |
| 518 | |
| 519 | *ficver = (val >> 3) & 0x1f; |
| 520 | fail: |
| 521 | return ret; |
| 522 | } |
| 523 | |
| 524 | #if 0 |
| 525 | static int lg2160_get_parade_id(struct lg216x_state *state, u8 *id) |
| 526 | { |
| 527 | u8 val; |
| 528 | int ret; |
| 529 | |
| 530 | *id = 0xff; /* invalid value */ |
| 531 | |
| 532 | ret = lg216x_read_reg(state, 0x0123, &val); |
| 533 | if (lg_fail(ret)) |
| 534 | goto fail; |
| 535 | |
| 536 | *id = val & 0x7f; |
| 537 | fail: |
| 538 | return ret; |
| 539 | } |
| 540 | #endif |
| 541 | |
| 542 | static int lg216x_get_nog(struct lg216x_state *state, u8 *nog) |
| 543 | { |
| 544 | u8 val; |
| 545 | int ret; |
| 546 | |
| 547 | *nog = 0xff; /* invalid value */ |
| 548 | |
| 549 | ret = lg216x_read_reg(state, 0x0124, &val); |
| 550 | if (lg_fail(ret)) |
| 551 | goto fail; |
| 552 | |
| 553 | *nog = ((val >> 4) & 0x07) + 1; |
| 554 | fail: |
| 555 | return ret; |
| 556 | } |
| 557 | |
| 558 | static int lg216x_get_tnog(struct lg216x_state *state, u8 *tnog) |
| 559 | { |
| 560 | u8 val; |
| 561 | int ret; |
| 562 | |
| 563 | *tnog = 0xff; /* invalid value */ |
| 564 | |
| 565 | ret = lg216x_read_reg(state, 0x0125, &val); |
| 566 | if (lg_fail(ret)) |
| 567 | goto fail; |
| 568 | |
| 569 | *tnog = val & 0x1f; |
| 570 | fail: |
| 571 | return ret; |
| 572 | } |
| 573 | |
| 574 | static int lg216x_get_sgn(struct lg216x_state *state, u8 *sgn) |
| 575 | { |
| 576 | u8 val; |
| 577 | int ret; |
| 578 | |
| 579 | *sgn = 0xff; /* invalid value */ |
| 580 | |
| 581 | ret = lg216x_read_reg(state, 0x0124, &val); |
| 582 | if (lg_fail(ret)) |
| 583 | goto fail; |
| 584 | |
| 585 | *sgn = val & 0x0f; |
| 586 | fail: |
| 587 | return ret; |
| 588 | } |
| 589 | |
| 590 | static int lg216x_get_prc(struct lg216x_state *state, u8 *prc) |
| 591 | { |
| 592 | u8 val; |
| 593 | int ret; |
| 594 | |
| 595 | *prc = 0xff; /* invalid value */ |
| 596 | |
| 597 | ret = lg216x_read_reg(state, 0x0125, &val); |
| 598 | if (lg_fail(ret)) |
| 599 | goto fail; |
| 600 | |
| 601 | *prc = ((val >> 5) & 0x07) + 1; |
| 602 | fail: |
| 603 | return ret; |
| 604 | } |
| 605 | |
| 606 | /* ------------------------------------------------------------------------ */ |
| 607 | |
| 608 | static int lg216x_get_rs_frame_mode(struct lg216x_state *state, |
| 609 | enum atscmh_rs_frame_mode *rs_framemode) |
| 610 | { |
| 611 | u8 val; |
| 612 | int ret; |
| 613 | |
| 614 | switch (state->cfg->lg_chip) { |
| 615 | case LG2160: |
| 616 | ret = lg216x_read_reg(state, 0x0410, &val); |
| 617 | break; |
| 618 | case LG2161: |
| 619 | ret = lg216x_read_reg(state, 0x0513, &val); |
| 620 | break; |
| 621 | default: |
| 622 | ret = -EINVAL; |
| 623 | } |
| 624 | if (lg_fail(ret)) |
| 625 | goto fail; |
| 626 | |
| 627 | switch ((val >> 4) & 0x03) { |
| 628 | #if 1 |
| 629 | default: |
| 630 | #endif |
| 631 | case 0x00: |
| 632 | *rs_framemode = ATSCMH_RSFRAME_PRI_ONLY; |
| 633 | break; |
| 634 | case 0x01: |
| 635 | *rs_framemode = ATSCMH_RSFRAME_PRI_SEC; |
| 636 | break; |
| 637 | #if 0 |
| 638 | default: |
| 639 | *rs_framemode = ATSCMH_RSFRAME_RES; |
| 640 | break; |
| 641 | #endif |
| 642 | } |
| 643 | fail: |
| 644 | return ret; |
| 645 | } |
| 646 | |
| 647 | static |
| 648 | int lg216x_get_rs_frame_ensemble(struct lg216x_state *state, |
| 649 | enum atscmh_rs_frame_ensemble *rs_frame_ens) |
| 650 | { |
| 651 | u8 val; |
| 652 | int ret; |
| 653 | |
| 654 | switch (state->cfg->lg_chip) { |
| 655 | case LG2160: |
| 656 | ret = lg216x_read_reg(state, 0x0400, &val); |
| 657 | break; |
| 658 | case LG2161: |
| 659 | ret = lg216x_read_reg(state, 0x0500, &val); |
| 660 | break; |
| 661 | default: |
| 662 | ret = -EINVAL; |
| 663 | } |
| 664 | if (lg_fail(ret)) |
| 665 | goto fail; |
| 666 | |
| 667 | val &= 0x01; |
| 668 | *rs_frame_ens = (enum atscmh_rs_frame_ensemble) val; |
| 669 | fail: |
| 670 | return ret; |
| 671 | } |
| 672 | |
| 673 | static int lg216x_get_rs_code_mode(struct lg216x_state *state, |
| 674 | enum atscmh_rs_code_mode *rs_code_pri, |
| 675 | enum atscmh_rs_code_mode *rs_code_sec) |
| 676 | { |
| 677 | u8 val; |
| 678 | int ret; |
| 679 | |
| 680 | switch (state->cfg->lg_chip) { |
| 681 | case LG2160: |
| 682 | ret = lg216x_read_reg(state, 0x0410, &val); |
| 683 | break; |
| 684 | case LG2161: |
| 685 | ret = lg216x_read_reg(state, 0x0513, &val); |
| 686 | break; |
| 687 | default: |
| 688 | ret = -EINVAL; |
| 689 | } |
| 690 | if (lg_fail(ret)) |
| 691 | goto fail; |
| 692 | |
| 693 | *rs_code_pri = (enum atscmh_rs_code_mode) ((val >> 2) & 0x03); |
| 694 | *rs_code_sec = (enum atscmh_rs_code_mode) (val & 0x03); |
| 695 | fail: |
| 696 | return ret; |
| 697 | } |
| 698 | |
| 699 | static int lg216x_get_sccc_block_mode(struct lg216x_state *state, |
| 700 | enum atscmh_sccc_block_mode *sccc_block) |
| 701 | { |
| 702 | u8 val; |
| 703 | int ret; |
| 704 | |
| 705 | switch (state->cfg->lg_chip) { |
| 706 | case LG2160: |
| 707 | ret = lg216x_read_reg(state, 0x0315, &val); |
| 708 | break; |
| 709 | case LG2161: |
| 710 | ret = lg216x_read_reg(state, 0x0511, &val); |
| 711 | break; |
| 712 | default: |
| 713 | ret = -EINVAL; |
| 714 | } |
| 715 | if (lg_fail(ret)) |
| 716 | goto fail; |
| 717 | |
| 718 | switch (val & 0x03) { |
| 719 | case 0x00: |
| 720 | *sccc_block = ATSCMH_SCCC_BLK_SEP; |
| 721 | break; |
| 722 | case 0x01: |
| 723 | *sccc_block = ATSCMH_SCCC_BLK_COMB; |
| 724 | break; |
| 725 | default: |
| 726 | *sccc_block = ATSCMH_SCCC_BLK_RES; |
| 727 | break; |
| 728 | } |
| 729 | fail: |
| 730 | return ret; |
| 731 | } |
| 732 | |
| 733 | static int lg216x_get_sccc_code_mode(struct lg216x_state *state, |
| 734 | enum atscmh_sccc_code_mode *mode_a, |
| 735 | enum atscmh_sccc_code_mode *mode_b, |
| 736 | enum atscmh_sccc_code_mode *mode_c, |
| 737 | enum atscmh_sccc_code_mode *mode_d) |
| 738 | { |
| 739 | u8 val; |
| 740 | int ret; |
| 741 | |
| 742 | switch (state->cfg->lg_chip) { |
| 743 | case LG2160: |
| 744 | ret = lg216x_read_reg(state, 0x0316, &val); |
| 745 | break; |
| 746 | case LG2161: |
| 747 | ret = lg216x_read_reg(state, 0x0512, &val); |
| 748 | break; |
| 749 | default: |
| 750 | ret = -EINVAL; |
| 751 | } |
| 752 | if (lg_fail(ret)) |
| 753 | goto fail; |
| 754 | |
| 755 | switch ((val >> 6) & 0x03) { |
| 756 | case 0x00: |
| 757 | *mode_a = ATSCMH_SCCC_CODE_HLF; |
| 758 | break; |
| 759 | case 0x01: |
| 760 | *mode_a = ATSCMH_SCCC_CODE_QTR; |
| 761 | break; |
| 762 | default: |
| 763 | *mode_a = ATSCMH_SCCC_CODE_RES; |
| 764 | break; |
| 765 | } |
| 766 | |
| 767 | switch ((val >> 4) & 0x03) { |
| 768 | case 0x00: |
| 769 | *mode_b = ATSCMH_SCCC_CODE_HLF; |
| 770 | break; |
| 771 | case 0x01: |
| 772 | *mode_b = ATSCMH_SCCC_CODE_QTR; |
| 773 | break; |
| 774 | default: |
| 775 | *mode_b = ATSCMH_SCCC_CODE_RES; |
| 776 | break; |
| 777 | } |
| 778 | |
| 779 | switch ((val >> 2) & 0x03) { |
| 780 | case 0x00: |
| 781 | *mode_c = ATSCMH_SCCC_CODE_HLF; |
| 782 | break; |
| 783 | case 0x01: |
| 784 | *mode_c = ATSCMH_SCCC_CODE_QTR; |
| 785 | break; |
| 786 | default: |
| 787 | *mode_c = ATSCMH_SCCC_CODE_RES; |
| 788 | break; |
| 789 | } |
| 790 | |
| 791 | switch (val & 0x03) { |
| 792 | case 0x00: |
| 793 | *mode_d = ATSCMH_SCCC_CODE_HLF; |
| 794 | break; |
| 795 | case 0x01: |
| 796 | *mode_d = ATSCMH_SCCC_CODE_QTR; |
| 797 | break; |
| 798 | default: |
| 799 | *mode_d = ATSCMH_SCCC_CODE_RES; |
| 800 | break; |
| 801 | } |
| 802 | fail: |
| 803 | return ret; |
| 804 | } |
| 805 | |
| 806 | /* ------------------------------------------------------------------------ */ |
| 807 | |
Michael Krufky | 10d6737 | 2012-05-14 18:50:34 -0300 | [diff] [blame] | 808 | #if 0 |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 809 | static int lg216x_read_fic_err_count(struct lg216x_state *state, u8 *err) |
| 810 | { |
| 811 | u8 fic_err; |
| 812 | int ret; |
| 813 | |
| 814 | *err = 0; |
| 815 | |
| 816 | switch (state->cfg->lg_chip) { |
| 817 | case LG2160: |
| 818 | ret = lg216x_read_reg(state, 0x0012, &fic_err); |
| 819 | break; |
| 820 | case LG2161: |
| 821 | ret = lg216x_read_reg(state, 0x001e, &fic_err); |
| 822 | break; |
| 823 | } |
| 824 | if (lg_fail(ret)) |
| 825 | goto fail; |
| 826 | |
| 827 | *err = fic_err; |
| 828 | fail: |
| 829 | return ret; |
| 830 | } |
| 831 | |
| 832 | static int lg2160_read_crc_err_count(struct lg216x_state *state, u16 *err) |
| 833 | { |
| 834 | u8 crc_err1, crc_err2; |
| 835 | int ret; |
| 836 | |
| 837 | *err = 0; |
| 838 | |
| 839 | ret = lg216x_read_reg(state, 0x0411, &crc_err1); |
| 840 | if (lg_fail(ret)) |
| 841 | goto fail; |
| 842 | |
| 843 | ret = lg216x_read_reg(state, 0x0412, &crc_err2); |
| 844 | if (lg_fail(ret)) |
| 845 | goto fail; |
| 846 | |
| 847 | *err = (u16)(((crc_err2 & 0x0f) << 8) | crc_err1); |
| 848 | fail: |
| 849 | return ret; |
| 850 | } |
| 851 | |
| 852 | static int lg2161_read_crc_err_count(struct lg216x_state *state, u16 *err) |
| 853 | { |
| 854 | u8 crc_err; |
| 855 | int ret; |
| 856 | |
| 857 | *err = 0; |
| 858 | |
| 859 | ret = lg216x_read_reg(state, 0x0612, &crc_err); |
| 860 | if (lg_fail(ret)) |
| 861 | goto fail; |
| 862 | |
| 863 | *err = (u16)crc_err; |
| 864 | fail: |
| 865 | return ret; |
| 866 | } |
| 867 | |
| 868 | static int lg216x_read_crc_err_count(struct lg216x_state *state, u16 *err) |
| 869 | { |
| 870 | int ret; |
| 871 | switch (state->cfg->lg_chip) { |
| 872 | case LG2160: |
| 873 | ret = lg2160_read_crc_err_count(state, err); |
| 874 | break; |
| 875 | case LG2161: |
| 876 | ret = lg2161_read_crc_err_count(state, err); |
| 877 | break; |
| 878 | default: |
| 879 | ret = -EINVAL; |
| 880 | break; |
| 881 | } |
| 882 | return ret; |
| 883 | } |
| 884 | |
| 885 | static int lg2160_read_rs_err_count(struct lg216x_state *state, u16 *err) |
| 886 | { |
| 887 | u8 rs_err1, rs_err2; |
| 888 | int ret; |
| 889 | |
| 890 | *err = 0; |
| 891 | |
| 892 | ret = lg216x_read_reg(state, 0x0413, &rs_err1); |
| 893 | if (lg_fail(ret)) |
| 894 | goto fail; |
| 895 | |
| 896 | ret = lg216x_read_reg(state, 0x0414, &rs_err2); |
| 897 | if (lg_fail(ret)) |
| 898 | goto fail; |
| 899 | |
| 900 | *err = (u16)(((rs_err2 & 0x0f) << 8) | rs_err1); |
| 901 | fail: |
| 902 | return ret; |
| 903 | } |
| 904 | |
| 905 | static int lg2161_read_rs_err_count(struct lg216x_state *state, u16 *err) |
| 906 | { |
| 907 | u8 rs_err1, rs_err2; |
| 908 | int ret; |
| 909 | |
| 910 | *err = 0; |
| 911 | |
| 912 | ret = lg216x_read_reg(state, 0x0613, &rs_err1); |
| 913 | if (lg_fail(ret)) |
| 914 | goto fail; |
| 915 | |
| 916 | ret = lg216x_read_reg(state, 0x0614, &rs_err2); |
| 917 | if (lg_fail(ret)) |
| 918 | goto fail; |
| 919 | |
| 920 | *err = (u16)((rs_err1 << 8) | rs_err2); |
| 921 | fail: |
| 922 | return ret; |
| 923 | } |
| 924 | |
| 925 | static int lg216x_read_rs_err_count(struct lg216x_state *state, u16 *err) |
| 926 | { |
| 927 | int ret; |
| 928 | switch (state->cfg->lg_chip) { |
| 929 | case LG2160: |
| 930 | ret = lg2160_read_rs_err_count(state, err); |
| 931 | break; |
| 932 | case LG2161: |
| 933 | ret = lg2161_read_rs_err_count(state, err); |
| 934 | break; |
| 935 | default: |
| 936 | ret = -EINVAL; |
| 937 | break; |
| 938 | } |
| 939 | return ret; |
| 940 | } |
Michael Krufky | 10d6737 | 2012-05-14 18:50:34 -0300 | [diff] [blame] | 941 | #endif |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 942 | |
| 943 | /* ------------------------------------------------------------------------ */ |
| 944 | |
| 945 | static int lg216x_get_frontend(struct dvb_frontend *fe) |
| 946 | { |
| 947 | struct lg216x_state *state = fe->demodulator_priv; |
| 948 | int ret; |
| 949 | |
| 950 | lg_dbg("\n"); |
| 951 | |
| 952 | fe->dtv_property_cache.modulation = VSB_8; |
| 953 | fe->dtv_property_cache.frequency = state->current_frequency; |
| 954 | fe->dtv_property_cache.delivery_system = SYS_ATSCMH; |
| 955 | |
| 956 | ret = lg216x_get_fic_version(state, |
| 957 | &fe->dtv_property_cache.atscmh_fic_ver); |
| 958 | if (lg_fail(ret)) |
| 959 | goto fail; |
| 960 | if (state->fic_ver != fe->dtv_property_cache.atscmh_fic_ver) { |
| 961 | state->fic_ver = fe->dtv_property_cache.atscmh_fic_ver; |
| 962 | |
| 963 | #if 0 |
| 964 | ret = lg2160_get_parade_id(state, |
| 965 | &fe->dtv_property_cache.atscmh_parade_id); |
| 966 | if (lg_fail(ret)) |
| 967 | goto fail; |
| 968 | /* #else */ |
| 969 | fe->dtv_property_cache.atscmh_parade_id = state->parade_id; |
| 970 | #endif |
| 971 | ret = lg216x_get_nog(state, |
| 972 | &fe->dtv_property_cache.atscmh_nog); |
| 973 | if (lg_fail(ret)) |
| 974 | goto fail; |
| 975 | ret = lg216x_get_tnog(state, |
| 976 | &fe->dtv_property_cache.atscmh_tnog); |
| 977 | if (lg_fail(ret)) |
| 978 | goto fail; |
| 979 | ret = lg216x_get_sgn(state, |
| 980 | &fe->dtv_property_cache.atscmh_sgn); |
| 981 | if (lg_fail(ret)) |
| 982 | goto fail; |
| 983 | ret = lg216x_get_prc(state, |
| 984 | &fe->dtv_property_cache.atscmh_prc); |
| 985 | if (lg_fail(ret)) |
| 986 | goto fail; |
| 987 | |
| 988 | ret = lg216x_get_rs_frame_mode(state, |
| 989 | (enum atscmh_rs_frame_mode *) |
| 990 | &fe->dtv_property_cache.atscmh_rs_frame_mode); |
| 991 | if (lg_fail(ret)) |
| 992 | goto fail; |
| 993 | ret = lg216x_get_rs_frame_ensemble(state, |
| 994 | (enum atscmh_rs_frame_ensemble *) |
| 995 | &fe->dtv_property_cache.atscmh_rs_frame_ensemble); |
| 996 | if (lg_fail(ret)) |
| 997 | goto fail; |
| 998 | ret = lg216x_get_rs_code_mode(state, |
| 999 | (enum atscmh_rs_code_mode *) |
| 1000 | &fe->dtv_property_cache.atscmh_rs_code_mode_pri, |
| 1001 | (enum atscmh_rs_code_mode *) |
| 1002 | &fe->dtv_property_cache.atscmh_rs_code_mode_sec); |
| 1003 | if (lg_fail(ret)) |
| 1004 | goto fail; |
| 1005 | ret = lg216x_get_sccc_block_mode(state, |
| 1006 | (enum atscmh_sccc_block_mode *) |
| 1007 | &fe->dtv_property_cache.atscmh_sccc_block_mode); |
| 1008 | if (lg_fail(ret)) |
| 1009 | goto fail; |
| 1010 | ret = lg216x_get_sccc_code_mode(state, |
| 1011 | (enum atscmh_sccc_code_mode *) |
| 1012 | &fe->dtv_property_cache.atscmh_sccc_code_mode_a, |
| 1013 | (enum atscmh_sccc_code_mode *) |
| 1014 | &fe->dtv_property_cache.atscmh_sccc_code_mode_b, |
| 1015 | (enum atscmh_sccc_code_mode *) |
| 1016 | &fe->dtv_property_cache.atscmh_sccc_code_mode_c, |
| 1017 | (enum atscmh_sccc_code_mode *) |
| 1018 | &fe->dtv_property_cache.atscmh_sccc_code_mode_d); |
| 1019 | if (lg_fail(ret)) |
| 1020 | goto fail; |
| 1021 | } |
Michael Krufky | 10d6737 | 2012-05-14 18:50:34 -0300 | [diff] [blame] | 1022 | #if 0 |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 1023 | ret = lg216x_read_fic_err_count(state, |
| 1024 | (u8 *)&fe->dtv_property_cache.atscmh_fic_err); |
| 1025 | if (lg_fail(ret)) |
| 1026 | goto fail; |
| 1027 | ret = lg216x_read_crc_err_count(state, |
| 1028 | &fe->dtv_property_cache.atscmh_crc_err); |
| 1029 | if (lg_fail(ret)) |
| 1030 | goto fail; |
| 1031 | ret = lg216x_read_rs_err_count(state, |
| 1032 | &fe->dtv_property_cache.atscmh_rs_err); |
| 1033 | if (lg_fail(ret)) |
| 1034 | goto fail; |
| 1035 | |
| 1036 | switch (state->cfg->lg_chip) { |
| 1037 | case LG2160: |
| 1038 | if (((fe->dtv_property_cache.atscmh_rs_err >= 240) && |
| 1039 | (fe->dtv_property_cache.atscmh_crc_err >= 240)) && |
| 1040 | ((jiffies_to_msecs(jiffies) - state->last_reset) > 6000)) |
| 1041 | ret = lg216x_soft_reset(state); |
| 1042 | break; |
| 1043 | case LG2161: |
| 1044 | /* no fix needed here (as far as we know) */ |
| 1045 | ret = 0; |
| 1046 | break; |
| 1047 | } |
| 1048 | lg_fail(ret); |
Michael Krufky | 10d6737 | 2012-05-14 18:50:34 -0300 | [diff] [blame] | 1049 | #endif |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 1050 | fail: |
| 1051 | return ret; |
| 1052 | } |
| 1053 | |
| 1054 | static int lg216x_get_property(struct dvb_frontend *fe, |
| 1055 | struct dtv_property *tvp) |
| 1056 | { |
| 1057 | return (DTV_ATSCMH_FIC_VER == tvp->cmd) ? |
| 1058 | lg216x_get_frontend(fe) : 0; |
| 1059 | } |
| 1060 | |
| 1061 | |
| 1062 | static int lg2160_set_frontend(struct dvb_frontend *fe) |
| 1063 | { |
| 1064 | struct lg216x_state *state = fe->demodulator_priv; |
| 1065 | int ret; |
| 1066 | |
| 1067 | lg_dbg("(%d)\n", fe->dtv_property_cache.frequency); |
| 1068 | |
| 1069 | if (fe->ops.tuner_ops.set_params) { |
| 1070 | ret = fe->ops.tuner_ops.set_params(fe); |
| 1071 | if (fe->ops.i2c_gate_ctrl) |
| 1072 | fe->ops.i2c_gate_ctrl(fe, 0); |
| 1073 | if (lg_fail(ret)) |
| 1074 | goto fail; |
| 1075 | state->current_frequency = fe->dtv_property_cache.frequency; |
| 1076 | } |
| 1077 | |
| 1078 | ret = lg2160_agc_fix(state, 0, 0); |
| 1079 | if (lg_fail(ret)) |
| 1080 | goto fail; |
| 1081 | ret = lg2160_agc_polarity(state, 0, 0); |
| 1082 | if (lg_fail(ret)) |
| 1083 | goto fail; |
| 1084 | ret = lg2160_tuner_pwr_save_polarity(state, 1); |
| 1085 | if (lg_fail(ret)) |
| 1086 | goto fail; |
| 1087 | ret = lg216x_set_if(state); |
| 1088 | if (lg_fail(ret)) |
| 1089 | goto fail; |
| 1090 | ret = lg2160_spectrum_polarity(state, state->cfg->spectral_inversion); |
| 1091 | if (lg_fail(ret)) |
| 1092 | goto fail; |
| 1093 | |
| 1094 | /* be tuned before this point */ |
| 1095 | ret = lg216x_soft_reset(state); |
| 1096 | if (lg_fail(ret)) |
| 1097 | goto fail; |
| 1098 | |
| 1099 | ret = lg2160_tuner_pwr_save(state, 0); |
| 1100 | if (lg_fail(ret)) |
| 1101 | goto fail; |
| 1102 | |
| 1103 | switch (state->cfg->lg_chip) { |
| 1104 | case LG2160: |
| 1105 | ret = lg2160_set_spi_clock(state); |
| 1106 | if (lg_fail(ret)) |
| 1107 | goto fail; |
| 1108 | break; |
| 1109 | case LG2161: |
| 1110 | ret = lg2161_set_output_interface(state); |
| 1111 | if (lg_fail(ret)) |
| 1112 | goto fail; |
| 1113 | break; |
| 1114 | } |
| 1115 | |
| 1116 | ret = lg216x_set_parade(state, fe->dtv_property_cache.atscmh_parade_id); |
| 1117 | if (lg_fail(ret)) |
| 1118 | goto fail; |
| 1119 | |
| 1120 | ret = lg216x_set_ensemble(state, |
| 1121 | fe->dtv_property_cache.atscmh_rs_frame_ensemble); |
| 1122 | if (lg_fail(ret)) |
| 1123 | goto fail; |
| 1124 | |
| 1125 | ret = lg216x_initialize(state); |
| 1126 | if (lg_fail(ret)) |
| 1127 | goto fail; |
| 1128 | |
| 1129 | ret = lg216x_enable_fic(state, 1); |
| 1130 | lg_fail(ret); |
| 1131 | |
| 1132 | lg216x_get_frontend(fe); |
| 1133 | fail: |
| 1134 | return ret; |
| 1135 | } |
| 1136 | |
| 1137 | /* ------------------------------------------------------------------------ */ |
| 1138 | |
| 1139 | static int lg2160_read_lock_status(struct lg216x_state *state, |
| 1140 | int *acq_lock, int *sync_lock) |
| 1141 | { |
| 1142 | u8 val; |
| 1143 | int ret; |
| 1144 | |
| 1145 | *acq_lock = 0; |
| 1146 | *sync_lock = 0; |
| 1147 | |
| 1148 | ret = lg216x_read_reg(state, 0x011b, &val); |
| 1149 | if (lg_fail(ret)) |
| 1150 | goto fail; |
| 1151 | |
| 1152 | *sync_lock = (val & 0x20) ? 0 : 1; |
| 1153 | *acq_lock = (val & 0x40) ? 0 : 1; |
| 1154 | fail: |
| 1155 | return ret; |
| 1156 | } |
| 1157 | |
| 1158 | #ifdef USE_LG2161_LOCK_BITS |
| 1159 | static int lg2161_read_lock_status(struct lg216x_state *state, |
| 1160 | int *acq_lock, int *sync_lock) |
| 1161 | { |
| 1162 | u8 val; |
| 1163 | int ret; |
| 1164 | |
| 1165 | *acq_lock = 0; |
| 1166 | *sync_lock = 0; |
| 1167 | |
| 1168 | ret = lg216x_read_reg(state, 0x0304, &val); |
| 1169 | if (lg_fail(ret)) |
| 1170 | goto fail; |
| 1171 | |
| 1172 | *sync_lock = (val & 0x80) ? 0 : 1; |
| 1173 | |
| 1174 | ret = lg216x_read_reg(state, 0x011b, &val); |
| 1175 | if (lg_fail(ret)) |
| 1176 | goto fail; |
| 1177 | |
| 1178 | *acq_lock = (val & 0x40) ? 0 : 1; |
| 1179 | fail: |
| 1180 | return ret; |
| 1181 | } |
| 1182 | #endif |
| 1183 | |
| 1184 | static int lg216x_read_lock_status(struct lg216x_state *state, |
| 1185 | int *acq_lock, int *sync_lock) |
| 1186 | { |
| 1187 | #ifdef USE_LG2161_LOCK_BITS |
| 1188 | int ret; |
| 1189 | switch (state->cfg->lg_chip) { |
| 1190 | case LG2160: |
| 1191 | ret = lg2160_read_lock_status(state, acq_lock, sync_lock); |
| 1192 | break; |
| 1193 | case LG2161: |
| 1194 | ret = lg2161_read_lock_status(state, acq_lock, sync_lock); |
| 1195 | break; |
| 1196 | default: |
| 1197 | ret = -EINVAL; |
| 1198 | break; |
| 1199 | } |
| 1200 | return ret; |
| 1201 | #else |
| 1202 | return lg2160_read_lock_status(state, acq_lock, sync_lock); |
| 1203 | #endif |
| 1204 | } |
| 1205 | |
| 1206 | static int lg216x_read_status(struct dvb_frontend *fe, fe_status_t *status) |
| 1207 | { |
| 1208 | struct lg216x_state *state = fe->demodulator_priv; |
| 1209 | int ret, acq_lock, sync_lock; |
| 1210 | |
| 1211 | *status = 0; |
| 1212 | |
| 1213 | ret = lg216x_read_lock_status(state, &acq_lock, &sync_lock); |
| 1214 | if (lg_fail(ret)) |
| 1215 | goto fail; |
| 1216 | |
| 1217 | lg_dbg("%s%s\n", |
| 1218 | acq_lock ? "SIGNALEXIST " : "", |
| 1219 | sync_lock ? "SYNCLOCK" : ""); |
| 1220 | |
| 1221 | if (acq_lock) |
| 1222 | *status |= FE_HAS_SIGNAL; |
| 1223 | if (sync_lock) |
| 1224 | *status |= FE_HAS_SYNC; |
| 1225 | |
| 1226 | if (*status) |
| 1227 | *status |= FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_LOCK; |
| 1228 | |
| 1229 | fail: |
| 1230 | return ret; |
| 1231 | } |
| 1232 | |
| 1233 | /* ------------------------------------------------------------------------ */ |
| 1234 | |
| 1235 | static int lg2160_read_snr(struct dvb_frontend *fe, u16 *snr) |
| 1236 | { |
| 1237 | struct lg216x_state *state = fe->demodulator_priv; |
| 1238 | u8 snr1, snr2; |
| 1239 | int ret; |
| 1240 | |
| 1241 | *snr = 0; |
| 1242 | |
| 1243 | ret = lg216x_read_reg(state, 0x0202, &snr1); |
| 1244 | if (lg_fail(ret)) |
| 1245 | goto fail; |
| 1246 | |
| 1247 | ret = lg216x_read_reg(state, 0x0203, &snr2); |
| 1248 | if (lg_fail(ret)) |
| 1249 | goto fail; |
| 1250 | |
| 1251 | if ((snr1 == 0xba) || (snr2 == 0xdf)) |
| 1252 | *snr = 0; |
| 1253 | else |
| 1254 | #if 1 |
| 1255 | *snr = ((snr1 >> 4) * 100) + ((snr1 & 0x0f) * 10) + (snr2 >> 4); |
| 1256 | #else /* BCD */ |
| 1257 | *snr = (snr2 | (snr1 << 8)); |
| 1258 | #endif |
| 1259 | fail: |
| 1260 | return ret; |
| 1261 | } |
| 1262 | |
| 1263 | static int lg2161_read_snr(struct dvb_frontend *fe, u16 *snr) |
| 1264 | { |
| 1265 | struct lg216x_state *state = fe->demodulator_priv; |
| 1266 | u8 snr1, snr2; |
| 1267 | int ret; |
| 1268 | |
| 1269 | *snr = 0; |
| 1270 | |
| 1271 | ret = lg216x_read_reg(state, 0x0302, &snr1); |
| 1272 | if (lg_fail(ret)) |
| 1273 | goto fail; |
| 1274 | |
| 1275 | ret = lg216x_read_reg(state, 0x0303, &snr2); |
| 1276 | if (lg_fail(ret)) |
| 1277 | goto fail; |
| 1278 | |
| 1279 | if ((snr1 == 0xba) || (snr2 == 0xfd)) |
| 1280 | *snr = 0; |
| 1281 | else |
| 1282 | |
| 1283 | *snr = ((snr1 >> 4) * 100) + ((snr1 & 0x0f) * 10) + (snr2 & 0x0f); |
| 1284 | fail: |
| 1285 | return ret; |
| 1286 | } |
| 1287 | |
| 1288 | static int lg216x_read_signal_strength(struct dvb_frontend *fe, |
| 1289 | u16 *strength) |
| 1290 | { |
| 1291 | #if 0 |
| 1292 | /* borrowed from lgdt330x.c |
| 1293 | * |
| 1294 | * Calculate strength from SNR up to 35dB |
| 1295 | * Even though the SNR can go higher than 35dB, |
| 1296 | * there is some comfort factor in having a range of |
| 1297 | * strong signals that can show at 100% |
| 1298 | */ |
| 1299 | struct lg216x_state *state = fe->demodulator_priv; |
| 1300 | u16 snr; |
| 1301 | int ret; |
| 1302 | #endif |
| 1303 | *strength = 0; |
| 1304 | #if 0 |
| 1305 | ret = fe->ops.read_snr(fe, &snr); |
| 1306 | if (lg_fail(ret)) |
| 1307 | goto fail; |
| 1308 | /* Rather than use the 8.8 value snr, use state->snr which is 8.24 */ |
| 1309 | /* scale the range 0 - 35*2^24 into 0 - 65535 */ |
| 1310 | if (state->snr >= 8960 * 0x10000) |
| 1311 | *strength = 0xffff; |
| 1312 | else |
| 1313 | *strength = state->snr / 8960; |
| 1314 | fail: |
| 1315 | return ret; |
| 1316 | #else |
| 1317 | return 0; |
| 1318 | #endif |
| 1319 | } |
| 1320 | |
| 1321 | /* ------------------------------------------------------------------------ */ |
| 1322 | |
| 1323 | static int lg216x_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) |
| 1324 | { |
Mauro Carvalho Chehab | 5444a1b | 2012-05-20 10:13:23 -0300 | [diff] [blame] | 1325 | #if 0 |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 1326 | struct lg216x_state *state = fe->demodulator_priv; |
| 1327 | int ret; |
Mauro Carvalho Chehab | 5444a1b | 2012-05-20 10:13:23 -0300 | [diff] [blame] | 1328 | |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 1329 | ret = lg216x_read_rs_err_count(state, |
| 1330 | &fe->dtv_property_cache.atscmh_rs_err); |
| 1331 | if (lg_fail(ret)) |
| 1332 | goto fail; |
| 1333 | |
| 1334 | *ucblocks = fe->dtv_property_cache.atscmh_rs_err; |
Mauro Carvalho Chehab | 5444a1b | 2012-05-20 10:13:23 -0300 | [diff] [blame] | 1335 | fail: |
Michael Krufky | 10d6737 | 2012-05-14 18:50:34 -0300 | [diff] [blame] | 1336 | #else |
| 1337 | *ucblocks = 0; |
| 1338 | #endif |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 1339 | return 0; |
| 1340 | } |
| 1341 | |
| 1342 | static int lg216x_get_tune_settings(struct dvb_frontend *fe, |
| 1343 | struct dvb_frontend_tune_settings |
| 1344 | *fe_tune_settings) |
| 1345 | { |
| 1346 | fe_tune_settings->min_delay_ms = 500; |
| 1347 | lg_dbg("\n"); |
| 1348 | return 0; |
| 1349 | } |
| 1350 | |
| 1351 | static void lg216x_release(struct dvb_frontend *fe) |
| 1352 | { |
| 1353 | struct lg216x_state *state = fe->demodulator_priv; |
| 1354 | lg_dbg("\n"); |
| 1355 | kfree(state); |
| 1356 | } |
| 1357 | |
| 1358 | static struct dvb_frontend_ops lg2160_ops = { |
| 1359 | .delsys = { SYS_ATSCMH }, |
| 1360 | .info = { |
| 1361 | .name = "LG Electronics LG2160 ATSC/MH Frontend", |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 1362 | .frequency_min = 54000000, |
| 1363 | .frequency_max = 858000000, |
| 1364 | .frequency_stepsize = 62500, |
| 1365 | }, |
| 1366 | .i2c_gate_ctrl = lg216x_i2c_gate_ctrl, |
| 1367 | #if 0 |
| 1368 | .init = lg216x_init, |
| 1369 | .sleep = lg216x_sleep, |
| 1370 | #endif |
| 1371 | .get_property = lg216x_get_property, |
| 1372 | |
| 1373 | .set_frontend = lg2160_set_frontend, |
| 1374 | .get_frontend = lg216x_get_frontend, |
| 1375 | .get_tune_settings = lg216x_get_tune_settings, |
| 1376 | .read_status = lg216x_read_status, |
| 1377 | #if 0 |
| 1378 | .read_ber = lg216x_read_ber, |
| 1379 | #endif |
| 1380 | .read_signal_strength = lg216x_read_signal_strength, |
| 1381 | .read_snr = lg2160_read_snr, |
| 1382 | .read_ucblocks = lg216x_read_ucblocks, |
| 1383 | .release = lg216x_release, |
| 1384 | }; |
| 1385 | |
| 1386 | static struct dvb_frontend_ops lg2161_ops = { |
| 1387 | .delsys = { SYS_ATSCMH }, |
| 1388 | .info = { |
| 1389 | .name = "LG Electronics LG2161 ATSC/MH Frontend", |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 1390 | .frequency_min = 54000000, |
| 1391 | .frequency_max = 858000000, |
| 1392 | .frequency_stepsize = 62500, |
| 1393 | }, |
| 1394 | .i2c_gate_ctrl = lg216x_i2c_gate_ctrl, |
| 1395 | #if 0 |
| 1396 | .init = lg216x_init, |
| 1397 | .sleep = lg216x_sleep, |
| 1398 | #endif |
| 1399 | .get_property = lg216x_get_property, |
| 1400 | |
| 1401 | .set_frontend = lg2160_set_frontend, |
| 1402 | .get_frontend = lg216x_get_frontend, |
| 1403 | .get_tune_settings = lg216x_get_tune_settings, |
| 1404 | .read_status = lg216x_read_status, |
| 1405 | #if 0 |
| 1406 | .read_ber = lg216x_read_ber, |
| 1407 | #endif |
| 1408 | .read_signal_strength = lg216x_read_signal_strength, |
| 1409 | .read_snr = lg2161_read_snr, |
| 1410 | .read_ucblocks = lg216x_read_ucblocks, |
| 1411 | .release = lg216x_release, |
| 1412 | }; |
| 1413 | |
| 1414 | struct dvb_frontend *lg2160_attach(const struct lg2160_config *config, |
| 1415 | struct i2c_adapter *i2c_adap) |
| 1416 | { |
| 1417 | struct lg216x_state *state = NULL; |
| 1418 | |
| 1419 | lg_dbg("(%d-%04x)\n", |
| 1420 | i2c_adap ? i2c_adapter_id(i2c_adap) : 0, |
| 1421 | config ? config->i2c_addr : 0); |
| 1422 | |
| 1423 | state = kzalloc(sizeof(struct lg216x_state), GFP_KERNEL); |
Peter Senna Tschudin | 1a5d2da | 2012-09-12 08:56:03 -0300 | [diff] [blame] | 1424 | if (!state) |
| 1425 | return NULL; |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 1426 | |
| 1427 | state->cfg = config; |
| 1428 | state->i2c_adap = i2c_adap; |
| 1429 | state->fic_ver = 0xff; |
| 1430 | state->parade_id = 0xff; |
| 1431 | |
| 1432 | switch (config->lg_chip) { |
| 1433 | default: |
| 1434 | lg_warn("invalid chip requested, defaulting to LG2160"); |
| 1435 | /* fall-thru */ |
| 1436 | case LG2160: |
| 1437 | memcpy(&state->frontend.ops, &lg2160_ops, |
| 1438 | sizeof(struct dvb_frontend_ops)); |
| 1439 | break; |
| 1440 | case LG2161: |
| 1441 | memcpy(&state->frontend.ops, &lg2161_ops, |
| 1442 | sizeof(struct dvb_frontend_ops)); |
| 1443 | break; |
| 1444 | } |
| 1445 | |
| 1446 | state->frontend.demodulator_priv = state; |
| 1447 | state->current_frequency = -1; |
| 1448 | /* parade 1 by default */ |
| 1449 | state->frontend.dtv_property_cache.atscmh_parade_id = 1; |
| 1450 | |
| 1451 | return &state->frontend; |
Michael Krufky | e26f2ae | 2012-01-29 15:46:46 -0300 | [diff] [blame] | 1452 | } |
| 1453 | EXPORT_SYMBOL(lg2160_attach); |
| 1454 | |
| 1455 | MODULE_DESCRIPTION("LG Electronics LG216x ATSC/MH Demodulator Driver"); |
| 1456 | MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>"); |
| 1457 | MODULE_LICENSE("GPL"); |
| 1458 | MODULE_VERSION("0.3"); |
| 1459 | |
| 1460 | /* |
| 1461 | * Local variables: |
| 1462 | * c-basic-offset: 8 |
| 1463 | * End: |
| 1464 | */ |