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e26f2ae4 MK |
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 | ||
bffaecc7 | 129 | for (i = 0; i < len; i++) { |
e26f2ae4 MK |
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: | |
5444a1b7 | 416 | default: |
e26f2ae4 MK |
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 | ||
10d67371 | 808 | #if 0 |
e26f2ae4 MK |
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 | } | |
10d67371 | 941 | #endif |
e26f2ae4 MK |
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 | } | |
10d67371 | 1022 | #if 0 |
e26f2ae4 MK |
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); | |
10d67371 | 1049 | #endif |
e26f2ae4 MK |
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 | ||
0df289a2 | 1206 | static int lg216x_read_status(struct dvb_frontend *fe, enum fe_status *status) |
e26f2ae4 MK |
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 | { | |
5444a1b7 | 1325 | #if 0 |
e26f2ae4 MK |
1326 | struct lg216x_state *state = fe->demodulator_priv; |
1327 | int ret; | |
5444a1b7 | 1328 | |
e26f2ae4 MK |
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; | |
5444a1b7 | 1335 | fail: |
10d67371 MK |
1336 | #else |
1337 | *ucblocks = 0; | |
1338 | #endif | |
e26f2ae4 MK |
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", | |
e26f2ae4 MK |
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", | |
e26f2ae4 MK |
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); | |
1a5d2da1 PST |
1424 | if (!state) |
1425 | return NULL; | |
e26f2ae4 MK |
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; | |
e26f2ae4 MK |
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"); |