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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 | * | |
e26f2ae4 MK |
16 | */ |
17 | ||
18 | #include <linux/jiffies.h> | |
19 | #include <linux/dvb/frontend.h> | |
20 | #include "lg2160.h" | |
21 | ||
22 | static int debug; | |
23 | module_param(debug, int, 0644); | |
24 | MODULE_PARM_DESC(debug, "set debug level (info=1, reg=2 (or-able))"); | |
25 | ||
26 | #define DBG_INFO 1 | |
27 | #define DBG_REG 2 | |
28 | ||
29 | #define lg_printk(kern, fmt, arg...) \ | |
30 | printk(kern "%s: " fmt, __func__, ##arg) | |
31 | ||
32 | #define lg_info(fmt, arg...) printk(KERN_INFO "lg2160: " fmt, ##arg) | |
33 | #define lg_warn(fmt, arg...) lg_printk(KERN_WARNING, fmt, ##arg) | |
34 | #define lg_err(fmt, arg...) lg_printk(KERN_ERR, fmt, ##arg) | |
35 | #define lg_dbg(fmt, arg...) if (debug & DBG_INFO) \ | |
36 | lg_printk(KERN_DEBUG, fmt, ##arg) | |
37 | #define lg_reg(fmt, arg...) if (debug & DBG_REG) \ | |
38 | lg_printk(KERN_DEBUG, fmt, ##arg) | |
39 | ||
40 | #define lg_fail(ret) \ | |
41 | ({ \ | |
42 | int __ret; \ | |
43 | __ret = (ret < 0); \ | |
44 | if (__ret) \ | |
45 | lg_err("error %d on line %d\n", ret, __LINE__); \ | |
46 | __ret; \ | |
47 | }) | |
48 | ||
49 | struct lg216x_state { | |
50 | struct i2c_adapter *i2c_adap; | |
51 | const struct lg2160_config *cfg; | |
52 | ||
53 | struct dvb_frontend frontend; | |
54 | ||
55 | u32 current_frequency; | |
56 | u8 parade_id; | |
57 | u8 fic_ver; | |
58 | unsigned int last_reset; | |
59 | }; | |
60 | ||
61 | /* ------------------------------------------------------------------------ */ | |
62 | ||
63 | static int lg216x_write_reg(struct lg216x_state *state, u16 reg, u8 val) | |
64 | { | |
65 | int ret; | |
66 | u8 buf[] = { reg >> 8, reg & 0xff, val }; | |
67 | struct i2c_msg msg = { | |
68 | .addr = state->cfg->i2c_addr, .flags = 0, | |
69 | .buf = buf, .len = 3, | |
70 | }; | |
71 | ||
72 | lg_reg("reg: 0x%04x, val: 0x%02x\n", reg, val); | |
73 | ||
74 | ret = i2c_transfer(state->i2c_adap, &msg, 1); | |
75 | ||
76 | if (ret != 1) { | |
77 | lg_err("error (addr %02x %02x <- %02x, err = %i)\n", | |
78 | msg.buf[0], msg.buf[1], msg.buf[2], ret); | |
79 | if (ret < 0) | |
80 | return ret; | |
81 | else | |
82 | return -EREMOTEIO; | |
83 | } | |
84 | return 0; | |
85 | } | |
86 | ||
87 | static int lg216x_read_reg(struct lg216x_state *state, u16 reg, u8 *val) | |
88 | { | |
89 | int ret; | |
90 | u8 reg_buf[] = { reg >> 8, reg & 0xff }; | |
91 | struct i2c_msg msg[] = { | |
92 | { .addr = state->cfg->i2c_addr, | |
93 | .flags = 0, .buf = reg_buf, .len = 2 }, | |
94 | { .addr = state->cfg->i2c_addr, | |
95 | .flags = I2C_M_RD, .buf = val, .len = 1 }, | |
96 | }; | |
97 | ||
98 | lg_reg("reg: 0x%04x\n", reg); | |
99 | ||
100 | ret = i2c_transfer(state->i2c_adap, msg, 2); | |
101 | ||
102 | if (ret != 2) { | |
103 | lg_err("error (addr %02x reg %04x error (ret == %i)\n", | |
104 | state->cfg->i2c_addr, reg, ret); | |
105 | if (ret < 0) | |
106 | return ret; | |
107 | else | |
108 | return -EREMOTEIO; | |
109 | } | |
110 | return 0; | |
111 | } | |
112 | ||
113 | struct lg216x_reg { | |
114 | u16 reg; | |
115 | u8 val; | |
116 | }; | |
117 | ||
118 | static int lg216x_write_regs(struct lg216x_state *state, | |
119 | struct lg216x_reg *regs, int len) | |
120 | { | |
121 | int i, ret; | |
122 | ||
123 | lg_reg("writing %d registers...\n", len); | |
124 | ||
bffaecc7 | 125 | for (i = 0; i < len; i++) { |
e26f2ae4 MK |
126 | ret = lg216x_write_reg(state, regs[i].reg, regs[i].val); |
127 | if (lg_fail(ret)) | |
128 | return ret; | |
129 | } | |
130 | return 0; | |
131 | } | |
132 | ||
133 | static int lg216x_set_reg_bit(struct lg216x_state *state, | |
134 | u16 reg, int bit, int onoff) | |
135 | { | |
136 | u8 val; | |
137 | int ret; | |
138 | ||
139 | lg_reg("reg: 0x%04x, bit: %d, level: %d\n", reg, bit, onoff); | |
140 | ||
141 | ret = lg216x_read_reg(state, reg, &val); | |
142 | if (lg_fail(ret)) | |
143 | goto fail; | |
144 | ||
145 | val &= ~(1 << bit); | |
146 | val |= (onoff & 1) << bit; | |
147 | ||
148 | ret = lg216x_write_reg(state, reg, val); | |
149 | lg_fail(ret); | |
150 | fail: | |
151 | return ret; | |
152 | } | |
153 | ||
154 | /* ------------------------------------------------------------------------ */ | |
155 | ||
156 | static int lg216x_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) | |
157 | { | |
158 | struct lg216x_state *state = fe->demodulator_priv; | |
159 | int ret; | |
160 | ||
161 | if (state->cfg->deny_i2c_rptr) | |
162 | return 0; | |
163 | ||
164 | lg_dbg("(%d)\n", enable); | |
165 | ||
166 | ret = lg216x_set_reg_bit(state, 0x0000, 0, enable ? 0 : 1); | |
167 | ||
168 | msleep(1); | |
169 | ||
170 | return ret; | |
171 | } | |
172 | ||
173 | static int lg216x_soft_reset(struct lg216x_state *state) | |
174 | { | |
175 | int ret; | |
176 | ||
177 | lg_dbg("\n"); | |
178 | ||
179 | ret = lg216x_write_reg(state, 0x0002, 0x00); | |
180 | if (lg_fail(ret)) | |
181 | goto fail; | |
182 | ||
183 | msleep(20); | |
184 | ret = lg216x_write_reg(state, 0x0002, 0x01); | |
185 | if (lg_fail(ret)) | |
186 | goto fail; | |
187 | ||
188 | state->last_reset = jiffies_to_msecs(jiffies); | |
189 | fail: | |
190 | return ret; | |
191 | } | |
192 | ||
193 | static int lg216x_initialize(struct lg216x_state *state) | |
194 | { | |
195 | int ret; | |
196 | ||
197 | static struct lg216x_reg lg2160_init[] = { | |
198 | #if 0 | |
199 | { .reg = 0x0015, .val = 0xe6 }, | |
200 | #else | |
201 | { .reg = 0x0015, .val = 0xf7 }, | |
202 | { .reg = 0x001b, .val = 0x52 }, | |
203 | { .reg = 0x0208, .val = 0x00 }, | |
204 | { .reg = 0x0209, .val = 0x82 }, | |
205 | { .reg = 0x0210, .val = 0xf9 }, | |
206 | { .reg = 0x020a, .val = 0x00 }, | |
207 | { .reg = 0x020b, .val = 0x82 }, | |
208 | { .reg = 0x020d, .val = 0x28 }, | |
209 | { .reg = 0x020f, .val = 0x14 }, | |
210 | #endif | |
211 | }; | |
212 | ||
213 | static struct lg216x_reg lg2161_init[] = { | |
214 | { .reg = 0x0000, .val = 0x41 }, | |
215 | { .reg = 0x0001, .val = 0xfb }, | |
216 | { .reg = 0x0216, .val = 0x00 }, | |
217 | { .reg = 0x0219, .val = 0x00 }, | |
218 | { .reg = 0x021b, .val = 0x55 }, | |
219 | { .reg = 0x0606, .val = 0x0a }, | |
220 | }; | |
221 | ||
222 | switch (state->cfg->lg_chip) { | |
223 | case LG2160: | |
224 | ret = lg216x_write_regs(state, | |
225 | lg2160_init, ARRAY_SIZE(lg2160_init)); | |
226 | break; | |
227 | case LG2161: | |
228 | ret = lg216x_write_regs(state, | |
229 | lg2161_init, ARRAY_SIZE(lg2161_init)); | |
230 | break; | |
231 | default: | |
232 | ret = -EINVAL; | |
233 | break; | |
234 | } | |
235 | if (lg_fail(ret)) | |
236 | goto fail; | |
237 | ||
238 | ret = lg216x_soft_reset(state); | |
239 | lg_fail(ret); | |
240 | fail: | |
241 | return ret; | |
242 | } | |
243 | ||
244 | /* ------------------------------------------------------------------------ */ | |
245 | ||
246 | static int lg216x_set_if(struct lg216x_state *state) | |
247 | { | |
248 | u8 val; | |
249 | int ret; | |
250 | ||
251 | lg_dbg("%d KHz\n", state->cfg->if_khz); | |
252 | ||
253 | ret = lg216x_read_reg(state, 0x0132, &val); | |
254 | if (lg_fail(ret)) | |
255 | goto fail; | |
256 | ||
257 | val &= 0xfb; | |
258 | val |= (0 == state->cfg->if_khz) ? 0x04 : 0x00; | |
259 | ||
260 | ret = lg216x_write_reg(state, 0x0132, val); | |
261 | lg_fail(ret); | |
262 | ||
263 | /* if NOT zero IF, 6 MHz is the default */ | |
264 | fail: | |
265 | return ret; | |
266 | } | |
267 | ||
268 | /* ------------------------------------------------------------------------ */ | |
269 | ||
270 | static int lg2160_agc_fix(struct lg216x_state *state, | |
271 | int if_agc_fix, int rf_agc_fix) | |
272 | { | |
273 | u8 val; | |
274 | int ret; | |
275 | ||
276 | ret = lg216x_read_reg(state, 0x0100, &val); | |
277 | if (lg_fail(ret)) | |
278 | goto fail; | |
279 | ||
280 | val &= 0xf3; | |
281 | val |= (if_agc_fix) ? 0x08 : 0x00; | |
282 | val |= (rf_agc_fix) ? 0x04 : 0x00; | |
283 | ||
284 | ret = lg216x_write_reg(state, 0x0100, val); | |
285 | lg_fail(ret); | |
286 | fail: | |
287 | return ret; | |
288 | } | |
289 | ||
290 | #if 0 | |
291 | static int lg2160_agc_freeze(struct lg216x_state *state, | |
292 | int if_agc_freeze, int rf_agc_freeze) | |
293 | { | |
294 | u8 val; | |
295 | int ret; | |
296 | ||
297 | ret = lg216x_read_reg(state, 0x0100, &val); | |
298 | if (lg_fail(ret)) | |
299 | goto fail; | |
300 | ||
301 | val &= 0xcf; | |
302 | val |= (if_agc_freeze) ? 0x20 : 0x00; | |
303 | val |= (rf_agc_freeze) ? 0x10 : 0x00; | |
304 | ||
305 | ret = lg216x_write_reg(state, 0x0100, val); | |
306 | lg_fail(ret); | |
307 | fail: | |
308 | return ret; | |
309 | } | |
310 | #endif | |
311 | ||
312 | static int lg2160_agc_polarity(struct lg216x_state *state, | |
313 | int if_agc_polarity, int rf_agc_polarity) | |
314 | { | |
315 | u8 val; | |
316 | int ret; | |
317 | ||
318 | ret = lg216x_read_reg(state, 0x0100, &val); | |
319 | if (lg_fail(ret)) | |
320 | goto fail; | |
321 | ||
322 | val &= 0xfc; | |
323 | val |= (if_agc_polarity) ? 0x02 : 0x00; | |
324 | val |= (rf_agc_polarity) ? 0x01 : 0x00; | |
325 | ||
326 | ret = lg216x_write_reg(state, 0x0100, val); | |
327 | lg_fail(ret); | |
328 | fail: | |
329 | return ret; | |
330 | } | |
331 | ||
332 | static int lg2160_tuner_pwr_save_polarity(struct lg216x_state *state, | |
333 | int polarity) | |
334 | { | |
335 | u8 val; | |
336 | int ret; | |
337 | ||
338 | ret = lg216x_read_reg(state, 0x0008, &val); | |
339 | if (lg_fail(ret)) | |
340 | goto fail; | |
341 | ||
342 | val &= 0xfe; | |
343 | val |= (polarity) ? 0x01 : 0x00; | |
344 | ||
345 | ret = lg216x_write_reg(state, 0x0008, val); | |
346 | lg_fail(ret); | |
347 | fail: | |
348 | return ret; | |
349 | } | |
350 | ||
351 | static int lg2160_spectrum_polarity(struct lg216x_state *state, | |
352 | int inverted) | |
353 | { | |
354 | u8 val; | |
355 | int ret; | |
356 | ||
357 | ret = lg216x_read_reg(state, 0x0132, &val); | |
358 | if (lg_fail(ret)) | |
359 | goto fail; | |
360 | ||
361 | val &= 0xfd; | |
362 | val |= (inverted) ? 0x02 : 0x00; | |
363 | ||
364 | ret = lg216x_write_reg(state, 0x0132, val); | |
365 | lg_fail(ret); | |
366 | fail: | |
367 | return lg216x_soft_reset(state); | |
368 | } | |
369 | ||
370 | static int lg2160_tuner_pwr_save(struct lg216x_state *state, int onoff) | |
371 | { | |
372 | u8 val; | |
373 | int ret; | |
374 | ||
375 | ret = lg216x_read_reg(state, 0x0007, &val); | |
376 | if (lg_fail(ret)) | |
377 | goto fail; | |
378 | ||
379 | val &= 0xbf; | |
380 | val |= (onoff) ? 0x40 : 0x00; | |
381 | ||
382 | ret = lg216x_write_reg(state, 0x0007, val); | |
383 | lg_fail(ret); | |
384 | fail: | |
385 | return ret; | |
386 | } | |
387 | ||
388 | static int lg216x_set_parade(struct lg216x_state *state, int id) | |
389 | { | |
390 | int ret; | |
391 | ||
392 | ret = lg216x_write_reg(state, 0x013e, id & 0x7f); | |
393 | if (lg_fail(ret)) | |
394 | goto fail; | |
395 | ||
396 | state->parade_id = id & 0x7f; | |
397 | fail: | |
398 | return ret; | |
399 | } | |
400 | ||
401 | static int lg216x_set_ensemble(struct lg216x_state *state, int id) | |
402 | { | |
403 | int ret; | |
404 | u16 reg; | |
405 | u8 val; | |
406 | ||
407 | switch (state->cfg->lg_chip) { | |
408 | case LG2160: | |
409 | reg = 0x0400; | |
410 | break; | |
411 | case LG2161: | |
5444a1b7 | 412 | default: |
e26f2ae4 MK |
413 | reg = 0x0500; |
414 | break; | |
415 | } | |
416 | ||
417 | ret = lg216x_read_reg(state, reg, &val); | |
418 | if (lg_fail(ret)) | |
419 | goto fail; | |
420 | ||
421 | val &= 0xfe; | |
422 | val |= (id) ? 0x01 : 0x00; | |
423 | ||
424 | ret = lg216x_write_reg(state, reg, val); | |
425 | lg_fail(ret); | |
426 | fail: | |
427 | return ret; | |
428 | } | |
429 | ||
430 | static int lg2160_set_spi_clock(struct lg216x_state *state) | |
431 | { | |
432 | u8 val; | |
433 | int ret; | |
434 | ||
435 | ret = lg216x_read_reg(state, 0x0014, &val); | |
436 | if (lg_fail(ret)) | |
437 | goto fail; | |
438 | ||
439 | val &= 0xf3; | |
440 | val |= (state->cfg->spi_clock << 2); | |
441 | ||
442 | ret = lg216x_write_reg(state, 0x0014, val); | |
443 | lg_fail(ret); | |
444 | fail: | |
445 | return ret; | |
446 | } | |
447 | ||
448 | static int lg2161_set_output_interface(struct lg216x_state *state) | |
449 | { | |
450 | u8 val; | |
451 | int ret; | |
452 | ||
453 | ret = lg216x_read_reg(state, 0x0014, &val); | |
454 | if (lg_fail(ret)) | |
455 | goto fail; | |
456 | ||
457 | val &= ~0x07; | |
458 | val |= state->cfg->output_if; /* FIXME: needs sanity check */ | |
459 | ||
460 | ret = lg216x_write_reg(state, 0x0014, val); | |
461 | lg_fail(ret); | |
462 | fail: | |
463 | return ret; | |
464 | } | |
465 | ||
466 | static int lg216x_enable_fic(struct lg216x_state *state, int onoff) | |
467 | { | |
468 | int ret; | |
469 | ||
470 | ret = lg216x_write_reg(state, 0x0017, 0x23); | |
471 | if (lg_fail(ret)) | |
472 | goto fail; | |
473 | ||
474 | ret = lg216x_write_reg(state, 0x0016, 0xfc); | |
475 | if (lg_fail(ret)) | |
476 | goto fail; | |
477 | ||
478 | switch (state->cfg->lg_chip) { | |
479 | case LG2160: | |
480 | ret = lg216x_write_reg(state, 0x0016, | |
481 | 0xfc | ((onoff) ? 0x02 : 0x00)); | |
482 | break; | |
483 | case LG2161: | |
484 | ret = lg216x_write_reg(state, 0x0016, (onoff) ? 0x10 : 0x00); | |
485 | break; | |
486 | } | |
487 | if (lg_fail(ret)) | |
488 | goto fail; | |
489 | ||
490 | ret = lg216x_initialize(state); | |
491 | if (lg_fail(ret)) | |
492 | goto fail; | |
493 | ||
494 | if (onoff) { | |
495 | ret = lg216x_write_reg(state, 0x0017, 0x03); | |
496 | lg_fail(ret); | |
497 | } | |
498 | fail: | |
499 | return ret; | |
500 | } | |
501 | ||
502 | /* ------------------------------------------------------------------------ */ | |
503 | ||
504 | static int lg216x_get_fic_version(struct lg216x_state *state, u8 *ficver) | |
505 | { | |
506 | u8 val; | |
507 | int ret; | |
508 | ||
509 | *ficver = 0xff; /* invalid value */ | |
510 | ||
511 | ret = lg216x_read_reg(state, 0x0128, &val); | |
512 | if (lg_fail(ret)) | |
513 | goto fail; | |
514 | ||
515 | *ficver = (val >> 3) & 0x1f; | |
516 | fail: | |
517 | return ret; | |
518 | } | |
519 | ||
520 | #if 0 | |
521 | static int lg2160_get_parade_id(struct lg216x_state *state, u8 *id) | |
522 | { | |
523 | u8 val; | |
524 | int ret; | |
525 | ||
526 | *id = 0xff; /* invalid value */ | |
527 | ||
528 | ret = lg216x_read_reg(state, 0x0123, &val); | |
529 | if (lg_fail(ret)) | |
530 | goto fail; | |
531 | ||
532 | *id = val & 0x7f; | |
533 | fail: | |
534 | return ret; | |
535 | } | |
536 | #endif | |
537 | ||
538 | static int lg216x_get_nog(struct lg216x_state *state, u8 *nog) | |
539 | { | |
540 | u8 val; | |
541 | int ret; | |
542 | ||
543 | *nog = 0xff; /* invalid value */ | |
544 | ||
545 | ret = lg216x_read_reg(state, 0x0124, &val); | |
546 | if (lg_fail(ret)) | |
547 | goto fail; | |
548 | ||
549 | *nog = ((val >> 4) & 0x07) + 1; | |
550 | fail: | |
551 | return ret; | |
552 | } | |
553 | ||
554 | static int lg216x_get_tnog(struct lg216x_state *state, u8 *tnog) | |
555 | { | |
556 | u8 val; | |
557 | int ret; | |
558 | ||
559 | *tnog = 0xff; /* invalid value */ | |
560 | ||
561 | ret = lg216x_read_reg(state, 0x0125, &val); | |
562 | if (lg_fail(ret)) | |
563 | goto fail; | |
564 | ||
565 | *tnog = val & 0x1f; | |
566 | fail: | |
567 | return ret; | |
568 | } | |
569 | ||
570 | static int lg216x_get_sgn(struct lg216x_state *state, u8 *sgn) | |
571 | { | |
572 | u8 val; | |
573 | int ret; | |
574 | ||
575 | *sgn = 0xff; /* invalid value */ | |
576 | ||
577 | ret = lg216x_read_reg(state, 0x0124, &val); | |
578 | if (lg_fail(ret)) | |
579 | goto fail; | |
580 | ||
581 | *sgn = val & 0x0f; | |
582 | fail: | |
583 | return ret; | |
584 | } | |
585 | ||
586 | static int lg216x_get_prc(struct lg216x_state *state, u8 *prc) | |
587 | { | |
588 | u8 val; | |
589 | int ret; | |
590 | ||
591 | *prc = 0xff; /* invalid value */ | |
592 | ||
593 | ret = lg216x_read_reg(state, 0x0125, &val); | |
594 | if (lg_fail(ret)) | |
595 | goto fail; | |
596 | ||
597 | *prc = ((val >> 5) & 0x07) + 1; | |
598 | fail: | |
599 | return ret; | |
600 | } | |
601 | ||
602 | /* ------------------------------------------------------------------------ */ | |
603 | ||
604 | static int lg216x_get_rs_frame_mode(struct lg216x_state *state, | |
605 | enum atscmh_rs_frame_mode *rs_framemode) | |
606 | { | |
607 | u8 val; | |
608 | int ret; | |
609 | ||
610 | switch (state->cfg->lg_chip) { | |
611 | case LG2160: | |
612 | ret = lg216x_read_reg(state, 0x0410, &val); | |
613 | break; | |
614 | case LG2161: | |
615 | ret = lg216x_read_reg(state, 0x0513, &val); | |
616 | break; | |
617 | default: | |
618 | ret = -EINVAL; | |
619 | } | |
620 | if (lg_fail(ret)) | |
621 | goto fail; | |
622 | ||
623 | switch ((val >> 4) & 0x03) { | |
624 | #if 1 | |
625 | default: | |
626 | #endif | |
627 | case 0x00: | |
628 | *rs_framemode = ATSCMH_RSFRAME_PRI_ONLY; | |
629 | break; | |
630 | case 0x01: | |
631 | *rs_framemode = ATSCMH_RSFRAME_PRI_SEC; | |
632 | break; | |
633 | #if 0 | |
634 | default: | |
635 | *rs_framemode = ATSCMH_RSFRAME_RES; | |
636 | break; | |
637 | #endif | |
638 | } | |
639 | fail: | |
640 | return ret; | |
641 | } | |
642 | ||
643 | static | |
644 | int lg216x_get_rs_frame_ensemble(struct lg216x_state *state, | |
645 | enum atscmh_rs_frame_ensemble *rs_frame_ens) | |
646 | { | |
647 | u8 val; | |
648 | int ret; | |
649 | ||
650 | switch (state->cfg->lg_chip) { | |
651 | case LG2160: | |
652 | ret = lg216x_read_reg(state, 0x0400, &val); | |
653 | break; | |
654 | case LG2161: | |
655 | ret = lg216x_read_reg(state, 0x0500, &val); | |
656 | break; | |
657 | default: | |
658 | ret = -EINVAL; | |
659 | } | |
660 | if (lg_fail(ret)) | |
661 | goto fail; | |
662 | ||
663 | val &= 0x01; | |
664 | *rs_frame_ens = (enum atscmh_rs_frame_ensemble) val; | |
665 | fail: | |
666 | return ret; | |
667 | } | |
668 | ||
669 | static int lg216x_get_rs_code_mode(struct lg216x_state *state, | |
670 | enum atscmh_rs_code_mode *rs_code_pri, | |
671 | enum atscmh_rs_code_mode *rs_code_sec) | |
672 | { | |
673 | u8 val; | |
674 | int ret; | |
675 | ||
676 | switch (state->cfg->lg_chip) { | |
677 | case LG2160: | |
678 | ret = lg216x_read_reg(state, 0x0410, &val); | |
679 | break; | |
680 | case LG2161: | |
681 | ret = lg216x_read_reg(state, 0x0513, &val); | |
682 | break; | |
683 | default: | |
684 | ret = -EINVAL; | |
685 | } | |
686 | if (lg_fail(ret)) | |
687 | goto fail; | |
688 | ||
689 | *rs_code_pri = (enum atscmh_rs_code_mode) ((val >> 2) & 0x03); | |
690 | *rs_code_sec = (enum atscmh_rs_code_mode) (val & 0x03); | |
691 | fail: | |
692 | return ret; | |
693 | } | |
694 | ||
695 | static int lg216x_get_sccc_block_mode(struct lg216x_state *state, | |
696 | enum atscmh_sccc_block_mode *sccc_block) | |
697 | { | |
698 | u8 val; | |
699 | int ret; | |
700 | ||
701 | switch (state->cfg->lg_chip) { | |
702 | case LG2160: | |
703 | ret = lg216x_read_reg(state, 0x0315, &val); | |
704 | break; | |
705 | case LG2161: | |
706 | ret = lg216x_read_reg(state, 0x0511, &val); | |
707 | break; | |
708 | default: | |
709 | ret = -EINVAL; | |
710 | } | |
711 | if (lg_fail(ret)) | |
712 | goto fail; | |
713 | ||
714 | switch (val & 0x03) { | |
715 | case 0x00: | |
716 | *sccc_block = ATSCMH_SCCC_BLK_SEP; | |
717 | break; | |
718 | case 0x01: | |
719 | *sccc_block = ATSCMH_SCCC_BLK_COMB; | |
720 | break; | |
721 | default: | |
722 | *sccc_block = ATSCMH_SCCC_BLK_RES; | |
723 | break; | |
724 | } | |
725 | fail: | |
726 | return ret; | |
727 | } | |
728 | ||
729 | static int lg216x_get_sccc_code_mode(struct lg216x_state *state, | |
730 | enum atscmh_sccc_code_mode *mode_a, | |
731 | enum atscmh_sccc_code_mode *mode_b, | |
732 | enum atscmh_sccc_code_mode *mode_c, | |
733 | enum atscmh_sccc_code_mode *mode_d) | |
734 | { | |
735 | u8 val; | |
736 | int ret; | |
737 | ||
738 | switch (state->cfg->lg_chip) { | |
739 | case LG2160: | |
740 | ret = lg216x_read_reg(state, 0x0316, &val); | |
741 | break; | |
742 | case LG2161: | |
743 | ret = lg216x_read_reg(state, 0x0512, &val); | |
744 | break; | |
745 | default: | |
746 | ret = -EINVAL; | |
747 | } | |
748 | if (lg_fail(ret)) | |
749 | goto fail; | |
750 | ||
751 | switch ((val >> 6) & 0x03) { | |
752 | case 0x00: | |
753 | *mode_a = ATSCMH_SCCC_CODE_HLF; | |
754 | break; | |
755 | case 0x01: | |
756 | *mode_a = ATSCMH_SCCC_CODE_QTR; | |
757 | break; | |
758 | default: | |
759 | *mode_a = ATSCMH_SCCC_CODE_RES; | |
760 | break; | |
761 | } | |
762 | ||
763 | switch ((val >> 4) & 0x03) { | |
764 | case 0x00: | |
765 | *mode_b = ATSCMH_SCCC_CODE_HLF; | |
766 | break; | |
767 | case 0x01: | |
768 | *mode_b = ATSCMH_SCCC_CODE_QTR; | |
769 | break; | |
770 | default: | |
771 | *mode_b = ATSCMH_SCCC_CODE_RES; | |
772 | break; | |
773 | } | |
774 | ||
775 | switch ((val >> 2) & 0x03) { | |
776 | case 0x00: | |
777 | *mode_c = ATSCMH_SCCC_CODE_HLF; | |
778 | break; | |
779 | case 0x01: | |
780 | *mode_c = ATSCMH_SCCC_CODE_QTR; | |
781 | break; | |
782 | default: | |
783 | *mode_c = ATSCMH_SCCC_CODE_RES; | |
784 | break; | |
785 | } | |
786 | ||
787 | switch (val & 0x03) { | |
788 | case 0x00: | |
789 | *mode_d = ATSCMH_SCCC_CODE_HLF; | |
790 | break; | |
791 | case 0x01: | |
792 | *mode_d = ATSCMH_SCCC_CODE_QTR; | |
793 | break; | |
794 | default: | |
795 | *mode_d = ATSCMH_SCCC_CODE_RES; | |
796 | break; | |
797 | } | |
798 | fail: | |
799 | return ret; | |
800 | } | |
801 | ||
802 | /* ------------------------------------------------------------------------ */ | |
803 | ||
10d67371 | 804 | #if 0 |
e26f2ae4 MK |
805 | static int lg216x_read_fic_err_count(struct lg216x_state *state, u8 *err) |
806 | { | |
807 | u8 fic_err; | |
808 | int ret; | |
809 | ||
810 | *err = 0; | |
811 | ||
812 | switch (state->cfg->lg_chip) { | |
813 | case LG2160: | |
814 | ret = lg216x_read_reg(state, 0x0012, &fic_err); | |
815 | break; | |
816 | case LG2161: | |
817 | ret = lg216x_read_reg(state, 0x001e, &fic_err); | |
818 | break; | |
819 | } | |
820 | if (lg_fail(ret)) | |
821 | goto fail; | |
822 | ||
823 | *err = fic_err; | |
824 | fail: | |
825 | return ret; | |
826 | } | |
827 | ||
828 | static int lg2160_read_crc_err_count(struct lg216x_state *state, u16 *err) | |
829 | { | |
830 | u8 crc_err1, crc_err2; | |
831 | int ret; | |
832 | ||
833 | *err = 0; | |
834 | ||
835 | ret = lg216x_read_reg(state, 0x0411, &crc_err1); | |
836 | if (lg_fail(ret)) | |
837 | goto fail; | |
838 | ||
839 | ret = lg216x_read_reg(state, 0x0412, &crc_err2); | |
840 | if (lg_fail(ret)) | |
841 | goto fail; | |
842 | ||
843 | *err = (u16)(((crc_err2 & 0x0f) << 8) | crc_err1); | |
844 | fail: | |
845 | return ret; | |
846 | } | |
847 | ||
848 | static int lg2161_read_crc_err_count(struct lg216x_state *state, u16 *err) | |
849 | { | |
850 | u8 crc_err; | |
851 | int ret; | |
852 | ||
853 | *err = 0; | |
854 | ||
855 | ret = lg216x_read_reg(state, 0x0612, &crc_err); | |
856 | if (lg_fail(ret)) | |
857 | goto fail; | |
858 | ||
859 | *err = (u16)crc_err; | |
860 | fail: | |
861 | return ret; | |
862 | } | |
863 | ||
864 | static int lg216x_read_crc_err_count(struct lg216x_state *state, u16 *err) | |
865 | { | |
866 | int ret; | |
867 | switch (state->cfg->lg_chip) { | |
868 | case LG2160: | |
869 | ret = lg2160_read_crc_err_count(state, err); | |
870 | break; | |
871 | case LG2161: | |
872 | ret = lg2161_read_crc_err_count(state, err); | |
873 | break; | |
874 | default: | |
875 | ret = -EINVAL; | |
876 | break; | |
877 | } | |
878 | return ret; | |
879 | } | |
880 | ||
881 | static int lg2160_read_rs_err_count(struct lg216x_state *state, u16 *err) | |
882 | { | |
883 | u8 rs_err1, rs_err2; | |
884 | int ret; | |
885 | ||
886 | *err = 0; | |
887 | ||
888 | ret = lg216x_read_reg(state, 0x0413, &rs_err1); | |
889 | if (lg_fail(ret)) | |
890 | goto fail; | |
891 | ||
892 | ret = lg216x_read_reg(state, 0x0414, &rs_err2); | |
893 | if (lg_fail(ret)) | |
894 | goto fail; | |
895 | ||
896 | *err = (u16)(((rs_err2 & 0x0f) << 8) | rs_err1); | |
897 | fail: | |
898 | return ret; | |
899 | } | |
900 | ||
901 | static int lg2161_read_rs_err_count(struct lg216x_state *state, u16 *err) | |
902 | { | |
903 | u8 rs_err1, rs_err2; | |
904 | int ret; | |
905 | ||
906 | *err = 0; | |
907 | ||
908 | ret = lg216x_read_reg(state, 0x0613, &rs_err1); | |
909 | if (lg_fail(ret)) | |
910 | goto fail; | |
911 | ||
912 | ret = lg216x_read_reg(state, 0x0614, &rs_err2); | |
913 | if (lg_fail(ret)) | |
914 | goto fail; | |
915 | ||
916 | *err = (u16)((rs_err1 << 8) | rs_err2); | |
917 | fail: | |
918 | return ret; | |
919 | } | |
920 | ||
921 | static int lg216x_read_rs_err_count(struct lg216x_state *state, u16 *err) | |
922 | { | |
923 | int ret; | |
924 | switch (state->cfg->lg_chip) { | |
925 | case LG2160: | |
926 | ret = lg2160_read_rs_err_count(state, err); | |
927 | break; | |
928 | case LG2161: | |
929 | ret = lg2161_read_rs_err_count(state, err); | |
930 | break; | |
931 | default: | |
932 | ret = -EINVAL; | |
933 | break; | |
934 | } | |
935 | return ret; | |
936 | } | |
10d67371 | 937 | #endif |
e26f2ae4 MK |
938 | |
939 | /* ------------------------------------------------------------------------ */ | |
940 | ||
7e3e68bc MCC |
941 | static int lg216x_get_frontend(struct dvb_frontend *fe, |
942 | struct dtv_frontend_properties *c) | |
e26f2ae4 MK |
943 | { |
944 | struct lg216x_state *state = fe->demodulator_priv; | |
945 | int ret; | |
946 | ||
947 | lg_dbg("\n"); | |
948 | ||
7e3e68bc MCC |
949 | c->modulation = VSB_8; |
950 | c->frequency = state->current_frequency; | |
951 | c->delivery_system = SYS_ATSCMH; | |
e26f2ae4 MK |
952 | |
953 | ret = lg216x_get_fic_version(state, | |
7e3e68bc | 954 | &c->atscmh_fic_ver); |
e26f2ae4 MK |
955 | if (lg_fail(ret)) |
956 | goto fail; | |
7e3e68bc MCC |
957 | if (state->fic_ver != c->atscmh_fic_ver) { |
958 | state->fic_ver = c->atscmh_fic_ver; | |
e26f2ae4 MK |
959 | |
960 | #if 0 | |
961 | ret = lg2160_get_parade_id(state, | |
7e3e68bc | 962 | &c->atscmh_parade_id); |
e26f2ae4 MK |
963 | if (lg_fail(ret)) |
964 | goto fail; | |
965 | /* #else */ | |
7e3e68bc | 966 | c->atscmh_parade_id = state->parade_id; |
e26f2ae4 MK |
967 | #endif |
968 | ret = lg216x_get_nog(state, | |
7e3e68bc | 969 | &c->atscmh_nog); |
e26f2ae4 MK |
970 | if (lg_fail(ret)) |
971 | goto fail; | |
972 | ret = lg216x_get_tnog(state, | |
7e3e68bc | 973 | &c->atscmh_tnog); |
e26f2ae4 MK |
974 | if (lg_fail(ret)) |
975 | goto fail; | |
976 | ret = lg216x_get_sgn(state, | |
7e3e68bc | 977 | &c->atscmh_sgn); |
e26f2ae4 MK |
978 | if (lg_fail(ret)) |
979 | goto fail; | |
980 | ret = lg216x_get_prc(state, | |
7e3e68bc | 981 | &c->atscmh_prc); |
e26f2ae4 MK |
982 | if (lg_fail(ret)) |
983 | goto fail; | |
984 | ||
985 | ret = lg216x_get_rs_frame_mode(state, | |
986 | (enum atscmh_rs_frame_mode *) | |
7e3e68bc | 987 | &c->atscmh_rs_frame_mode); |
e26f2ae4 MK |
988 | if (lg_fail(ret)) |
989 | goto fail; | |
990 | ret = lg216x_get_rs_frame_ensemble(state, | |
991 | (enum atscmh_rs_frame_ensemble *) | |
7e3e68bc | 992 | &c->atscmh_rs_frame_ensemble); |
e26f2ae4 MK |
993 | if (lg_fail(ret)) |
994 | goto fail; | |
995 | ret = lg216x_get_rs_code_mode(state, | |
996 | (enum atscmh_rs_code_mode *) | |
7e3e68bc | 997 | &c->atscmh_rs_code_mode_pri, |
e26f2ae4 | 998 | (enum atscmh_rs_code_mode *) |
7e3e68bc | 999 | &c->atscmh_rs_code_mode_sec); |
e26f2ae4 MK |
1000 | if (lg_fail(ret)) |
1001 | goto fail; | |
1002 | ret = lg216x_get_sccc_block_mode(state, | |
1003 | (enum atscmh_sccc_block_mode *) | |
7e3e68bc | 1004 | &c->atscmh_sccc_block_mode); |
e26f2ae4 MK |
1005 | if (lg_fail(ret)) |
1006 | goto fail; | |
1007 | ret = lg216x_get_sccc_code_mode(state, | |
1008 | (enum atscmh_sccc_code_mode *) | |
7e3e68bc | 1009 | &c->atscmh_sccc_code_mode_a, |
e26f2ae4 | 1010 | (enum atscmh_sccc_code_mode *) |
7e3e68bc | 1011 | &c->atscmh_sccc_code_mode_b, |
e26f2ae4 | 1012 | (enum atscmh_sccc_code_mode *) |
7e3e68bc | 1013 | &c->atscmh_sccc_code_mode_c, |
e26f2ae4 | 1014 | (enum atscmh_sccc_code_mode *) |
7e3e68bc | 1015 | &c->atscmh_sccc_code_mode_d); |
e26f2ae4 MK |
1016 | if (lg_fail(ret)) |
1017 | goto fail; | |
1018 | } | |
10d67371 | 1019 | #if 0 |
e26f2ae4 | 1020 | ret = lg216x_read_fic_err_count(state, |
7e3e68bc | 1021 | (u8 *)&c->atscmh_fic_err); |
e26f2ae4 MK |
1022 | if (lg_fail(ret)) |
1023 | goto fail; | |
1024 | ret = lg216x_read_crc_err_count(state, | |
7e3e68bc | 1025 | &c->atscmh_crc_err); |
e26f2ae4 MK |
1026 | if (lg_fail(ret)) |
1027 | goto fail; | |
1028 | ret = lg216x_read_rs_err_count(state, | |
7e3e68bc | 1029 | &c->atscmh_rs_err); |
e26f2ae4 MK |
1030 | if (lg_fail(ret)) |
1031 | goto fail; | |
1032 | ||
1033 | switch (state->cfg->lg_chip) { | |
1034 | case LG2160: | |
7e3e68bc MCC |
1035 | if (((c->atscmh_rs_err >= 240) && |
1036 | (c->atscmh_crc_err >= 240)) && | |
e26f2ae4 MK |
1037 | ((jiffies_to_msecs(jiffies) - state->last_reset) > 6000)) |
1038 | ret = lg216x_soft_reset(state); | |
1039 | break; | |
1040 | case LG2161: | |
1041 | /* no fix needed here (as far as we know) */ | |
1042 | ret = 0; | |
1043 | break; | |
1044 | } | |
1045 | lg_fail(ret); | |
10d67371 | 1046 | #endif |
e26f2ae4 MK |
1047 | fail: |
1048 | return ret; | |
1049 | } | |
1050 | ||
e26f2ae4 MK |
1051 | static int lg2160_set_frontend(struct dvb_frontend *fe) |
1052 | { | |
1053 | struct lg216x_state *state = fe->demodulator_priv; | |
7e3e68bc | 1054 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e26f2ae4 MK |
1055 | int ret; |
1056 | ||
1057 | lg_dbg("(%d)\n", fe->dtv_property_cache.frequency); | |
1058 | ||
1059 | if (fe->ops.tuner_ops.set_params) { | |
1060 | ret = fe->ops.tuner_ops.set_params(fe); | |
1061 | if (fe->ops.i2c_gate_ctrl) | |
1062 | fe->ops.i2c_gate_ctrl(fe, 0); | |
1063 | if (lg_fail(ret)) | |
1064 | goto fail; | |
1065 | state->current_frequency = fe->dtv_property_cache.frequency; | |
1066 | } | |
1067 | ||
1068 | ret = lg2160_agc_fix(state, 0, 0); | |
1069 | if (lg_fail(ret)) | |
1070 | goto fail; | |
1071 | ret = lg2160_agc_polarity(state, 0, 0); | |
1072 | if (lg_fail(ret)) | |
1073 | goto fail; | |
1074 | ret = lg2160_tuner_pwr_save_polarity(state, 1); | |
1075 | if (lg_fail(ret)) | |
1076 | goto fail; | |
1077 | ret = lg216x_set_if(state); | |
1078 | if (lg_fail(ret)) | |
1079 | goto fail; | |
1080 | ret = lg2160_spectrum_polarity(state, state->cfg->spectral_inversion); | |
1081 | if (lg_fail(ret)) | |
1082 | goto fail; | |
1083 | ||
1084 | /* be tuned before this point */ | |
1085 | ret = lg216x_soft_reset(state); | |
1086 | if (lg_fail(ret)) | |
1087 | goto fail; | |
1088 | ||
1089 | ret = lg2160_tuner_pwr_save(state, 0); | |
1090 | if (lg_fail(ret)) | |
1091 | goto fail; | |
1092 | ||
1093 | switch (state->cfg->lg_chip) { | |
1094 | case LG2160: | |
1095 | ret = lg2160_set_spi_clock(state); | |
1096 | if (lg_fail(ret)) | |
1097 | goto fail; | |
1098 | break; | |
1099 | case LG2161: | |
1100 | ret = lg2161_set_output_interface(state); | |
1101 | if (lg_fail(ret)) | |
1102 | goto fail; | |
1103 | break; | |
1104 | } | |
1105 | ||
1106 | ret = lg216x_set_parade(state, fe->dtv_property_cache.atscmh_parade_id); | |
1107 | if (lg_fail(ret)) | |
1108 | goto fail; | |
1109 | ||
1110 | ret = lg216x_set_ensemble(state, | |
1111 | fe->dtv_property_cache.atscmh_rs_frame_ensemble); | |
1112 | if (lg_fail(ret)) | |
1113 | goto fail; | |
1114 | ||
1115 | ret = lg216x_initialize(state); | |
1116 | if (lg_fail(ret)) | |
1117 | goto fail; | |
1118 | ||
1119 | ret = lg216x_enable_fic(state, 1); | |
1120 | lg_fail(ret); | |
1121 | ||
7e3e68bc | 1122 | lg216x_get_frontend(fe, c); |
e26f2ae4 MK |
1123 | fail: |
1124 | return ret; | |
1125 | } | |
1126 | ||
1127 | /* ------------------------------------------------------------------------ */ | |
1128 | ||
1129 | static int lg2160_read_lock_status(struct lg216x_state *state, | |
1130 | int *acq_lock, int *sync_lock) | |
1131 | { | |
1132 | u8 val; | |
1133 | int ret; | |
1134 | ||
1135 | *acq_lock = 0; | |
1136 | *sync_lock = 0; | |
1137 | ||
1138 | ret = lg216x_read_reg(state, 0x011b, &val); | |
1139 | if (lg_fail(ret)) | |
1140 | goto fail; | |
1141 | ||
1142 | *sync_lock = (val & 0x20) ? 0 : 1; | |
1143 | *acq_lock = (val & 0x40) ? 0 : 1; | |
1144 | fail: | |
1145 | return ret; | |
1146 | } | |
1147 | ||
1148 | #ifdef USE_LG2161_LOCK_BITS | |
1149 | static int lg2161_read_lock_status(struct lg216x_state *state, | |
1150 | int *acq_lock, int *sync_lock) | |
1151 | { | |
1152 | u8 val; | |
1153 | int ret; | |
1154 | ||
1155 | *acq_lock = 0; | |
1156 | *sync_lock = 0; | |
1157 | ||
1158 | ret = lg216x_read_reg(state, 0x0304, &val); | |
1159 | if (lg_fail(ret)) | |
1160 | goto fail; | |
1161 | ||
1162 | *sync_lock = (val & 0x80) ? 0 : 1; | |
1163 | ||
1164 | ret = lg216x_read_reg(state, 0x011b, &val); | |
1165 | if (lg_fail(ret)) | |
1166 | goto fail; | |
1167 | ||
1168 | *acq_lock = (val & 0x40) ? 0 : 1; | |
1169 | fail: | |
1170 | return ret; | |
1171 | } | |
1172 | #endif | |
1173 | ||
1174 | static int lg216x_read_lock_status(struct lg216x_state *state, | |
1175 | int *acq_lock, int *sync_lock) | |
1176 | { | |
1177 | #ifdef USE_LG2161_LOCK_BITS | |
1178 | int ret; | |
1179 | switch (state->cfg->lg_chip) { | |
1180 | case LG2160: | |
1181 | ret = lg2160_read_lock_status(state, acq_lock, sync_lock); | |
1182 | break; | |
1183 | case LG2161: | |
1184 | ret = lg2161_read_lock_status(state, acq_lock, sync_lock); | |
1185 | break; | |
1186 | default: | |
1187 | ret = -EINVAL; | |
1188 | break; | |
1189 | } | |
1190 | return ret; | |
1191 | #else | |
1192 | return lg2160_read_lock_status(state, acq_lock, sync_lock); | |
1193 | #endif | |
1194 | } | |
1195 | ||
0df289a2 | 1196 | static int lg216x_read_status(struct dvb_frontend *fe, enum fe_status *status) |
e26f2ae4 MK |
1197 | { |
1198 | struct lg216x_state *state = fe->demodulator_priv; | |
1199 | int ret, acq_lock, sync_lock; | |
1200 | ||
1201 | *status = 0; | |
1202 | ||
1203 | ret = lg216x_read_lock_status(state, &acq_lock, &sync_lock); | |
1204 | if (lg_fail(ret)) | |
1205 | goto fail; | |
1206 | ||
1207 | lg_dbg("%s%s\n", | |
1208 | acq_lock ? "SIGNALEXIST " : "", | |
1209 | sync_lock ? "SYNCLOCK" : ""); | |
1210 | ||
1211 | if (acq_lock) | |
1212 | *status |= FE_HAS_SIGNAL; | |
1213 | if (sync_lock) | |
1214 | *status |= FE_HAS_SYNC; | |
1215 | ||
1216 | if (*status) | |
1217 | *status |= FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_LOCK; | |
1218 | ||
1219 | fail: | |
1220 | return ret; | |
1221 | } | |
1222 | ||
1223 | /* ------------------------------------------------------------------------ */ | |
1224 | ||
1225 | static int lg2160_read_snr(struct dvb_frontend *fe, u16 *snr) | |
1226 | { | |
1227 | struct lg216x_state *state = fe->demodulator_priv; | |
1228 | u8 snr1, snr2; | |
1229 | int ret; | |
1230 | ||
1231 | *snr = 0; | |
1232 | ||
1233 | ret = lg216x_read_reg(state, 0x0202, &snr1); | |
1234 | if (lg_fail(ret)) | |
1235 | goto fail; | |
1236 | ||
1237 | ret = lg216x_read_reg(state, 0x0203, &snr2); | |
1238 | if (lg_fail(ret)) | |
1239 | goto fail; | |
1240 | ||
1241 | if ((snr1 == 0xba) || (snr2 == 0xdf)) | |
1242 | *snr = 0; | |
1243 | else | |
1244 | #if 1 | |
1245 | *snr = ((snr1 >> 4) * 100) + ((snr1 & 0x0f) * 10) + (snr2 >> 4); | |
1246 | #else /* BCD */ | |
1247 | *snr = (snr2 | (snr1 << 8)); | |
1248 | #endif | |
1249 | fail: | |
1250 | return ret; | |
1251 | } | |
1252 | ||
1253 | static int lg2161_read_snr(struct dvb_frontend *fe, u16 *snr) | |
1254 | { | |
1255 | struct lg216x_state *state = fe->demodulator_priv; | |
1256 | u8 snr1, snr2; | |
1257 | int ret; | |
1258 | ||
1259 | *snr = 0; | |
1260 | ||
1261 | ret = lg216x_read_reg(state, 0x0302, &snr1); | |
1262 | if (lg_fail(ret)) | |
1263 | goto fail; | |
1264 | ||
1265 | ret = lg216x_read_reg(state, 0x0303, &snr2); | |
1266 | if (lg_fail(ret)) | |
1267 | goto fail; | |
1268 | ||
1269 | if ((snr1 == 0xba) || (snr2 == 0xfd)) | |
1270 | *snr = 0; | |
1271 | else | |
1272 | ||
1273 | *snr = ((snr1 >> 4) * 100) + ((snr1 & 0x0f) * 10) + (snr2 & 0x0f); | |
1274 | fail: | |
1275 | return ret; | |
1276 | } | |
1277 | ||
1278 | static int lg216x_read_signal_strength(struct dvb_frontend *fe, | |
1279 | u16 *strength) | |
1280 | { | |
1281 | #if 0 | |
1282 | /* borrowed from lgdt330x.c | |
1283 | * | |
1284 | * Calculate strength from SNR up to 35dB | |
1285 | * Even though the SNR can go higher than 35dB, | |
1286 | * there is some comfort factor in having a range of | |
1287 | * strong signals that can show at 100% | |
1288 | */ | |
1289 | struct lg216x_state *state = fe->demodulator_priv; | |
1290 | u16 snr; | |
1291 | int ret; | |
1292 | #endif | |
1293 | *strength = 0; | |
1294 | #if 0 | |
1295 | ret = fe->ops.read_snr(fe, &snr); | |
1296 | if (lg_fail(ret)) | |
1297 | goto fail; | |
1298 | /* Rather than use the 8.8 value snr, use state->snr which is 8.24 */ | |
1299 | /* scale the range 0 - 35*2^24 into 0 - 65535 */ | |
1300 | if (state->snr >= 8960 * 0x10000) | |
1301 | *strength = 0xffff; | |
1302 | else | |
1303 | *strength = state->snr / 8960; | |
1304 | fail: | |
1305 | return ret; | |
1306 | #else | |
1307 | return 0; | |
1308 | #endif | |
1309 | } | |
1310 | ||
1311 | /* ------------------------------------------------------------------------ */ | |
1312 | ||
1313 | static int lg216x_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) | |
1314 | { | |
5444a1b7 | 1315 | #if 0 |
e26f2ae4 MK |
1316 | struct lg216x_state *state = fe->demodulator_priv; |
1317 | int ret; | |
5444a1b7 | 1318 | |
e26f2ae4 MK |
1319 | ret = lg216x_read_rs_err_count(state, |
1320 | &fe->dtv_property_cache.atscmh_rs_err); | |
1321 | if (lg_fail(ret)) | |
1322 | goto fail; | |
1323 | ||
1324 | *ucblocks = fe->dtv_property_cache.atscmh_rs_err; | |
5444a1b7 | 1325 | fail: |
10d67371 MK |
1326 | #else |
1327 | *ucblocks = 0; | |
1328 | #endif | |
e26f2ae4 MK |
1329 | return 0; |
1330 | } | |
1331 | ||
1332 | static int lg216x_get_tune_settings(struct dvb_frontend *fe, | |
1333 | struct dvb_frontend_tune_settings | |
1334 | *fe_tune_settings) | |
1335 | { | |
1336 | fe_tune_settings->min_delay_ms = 500; | |
1337 | lg_dbg("\n"); | |
1338 | return 0; | |
1339 | } | |
1340 | ||
1341 | static void lg216x_release(struct dvb_frontend *fe) | |
1342 | { | |
1343 | struct lg216x_state *state = fe->demodulator_priv; | |
1344 | lg_dbg("\n"); | |
1345 | kfree(state); | |
1346 | } | |
1347 | ||
bd336e63 | 1348 | static const struct dvb_frontend_ops lg2160_ops = { |
e26f2ae4 MK |
1349 | .delsys = { SYS_ATSCMH }, |
1350 | .info = { | |
1351 | .name = "LG Electronics LG2160 ATSC/MH Frontend", | |
f1b1eabf MCC |
1352 | .frequency_min_hz = 54 * MHz, |
1353 | .frequency_max_hz = 858 * MHz, | |
1354 | .frequency_stepsize_hz = 62500, | |
e26f2ae4 MK |
1355 | }, |
1356 | .i2c_gate_ctrl = lg216x_i2c_gate_ctrl, | |
1357 | #if 0 | |
1358 | .init = lg216x_init, | |
1359 | .sleep = lg216x_sleep, | |
1360 | #endif | |
e26f2ae4 MK |
1361 | .set_frontend = lg2160_set_frontend, |
1362 | .get_frontend = lg216x_get_frontend, | |
1363 | .get_tune_settings = lg216x_get_tune_settings, | |
1364 | .read_status = lg216x_read_status, | |
1365 | #if 0 | |
1366 | .read_ber = lg216x_read_ber, | |
1367 | #endif | |
1368 | .read_signal_strength = lg216x_read_signal_strength, | |
1369 | .read_snr = lg2160_read_snr, | |
1370 | .read_ucblocks = lg216x_read_ucblocks, | |
1371 | .release = lg216x_release, | |
1372 | }; | |
1373 | ||
bd336e63 | 1374 | static const struct dvb_frontend_ops lg2161_ops = { |
e26f2ae4 MK |
1375 | .delsys = { SYS_ATSCMH }, |
1376 | .info = { | |
1377 | .name = "LG Electronics LG2161 ATSC/MH Frontend", | |
f1b1eabf MCC |
1378 | .frequency_min_hz = 54 * MHz, |
1379 | .frequency_max_hz = 858 * MHz, | |
1380 | .frequency_stepsize_hz = 62500, | |
e26f2ae4 MK |
1381 | }, |
1382 | .i2c_gate_ctrl = lg216x_i2c_gate_ctrl, | |
1383 | #if 0 | |
1384 | .init = lg216x_init, | |
1385 | .sleep = lg216x_sleep, | |
1386 | #endif | |
e26f2ae4 MK |
1387 | .set_frontend = lg2160_set_frontend, |
1388 | .get_frontend = lg216x_get_frontend, | |
1389 | .get_tune_settings = lg216x_get_tune_settings, | |
1390 | .read_status = lg216x_read_status, | |
1391 | #if 0 | |
1392 | .read_ber = lg216x_read_ber, | |
1393 | #endif | |
1394 | .read_signal_strength = lg216x_read_signal_strength, | |
1395 | .read_snr = lg2161_read_snr, | |
1396 | .read_ucblocks = lg216x_read_ucblocks, | |
1397 | .release = lg216x_release, | |
1398 | }; | |
1399 | ||
1400 | struct dvb_frontend *lg2160_attach(const struct lg2160_config *config, | |
1401 | struct i2c_adapter *i2c_adap) | |
1402 | { | |
1403 | struct lg216x_state *state = NULL; | |
1404 | ||
1405 | lg_dbg("(%d-%04x)\n", | |
1406 | i2c_adap ? i2c_adapter_id(i2c_adap) : 0, | |
1407 | config ? config->i2c_addr : 0); | |
1408 | ||
1409 | state = kzalloc(sizeof(struct lg216x_state), GFP_KERNEL); | |
1a5d2da1 PST |
1410 | if (!state) |
1411 | return NULL; | |
e26f2ae4 MK |
1412 | |
1413 | state->cfg = config; | |
1414 | state->i2c_adap = i2c_adap; | |
1415 | state->fic_ver = 0xff; | |
1416 | state->parade_id = 0xff; | |
1417 | ||
1418 | switch (config->lg_chip) { | |
1419 | default: | |
1420 | lg_warn("invalid chip requested, defaulting to LG2160"); | |
1421 | /* fall-thru */ | |
1422 | case LG2160: | |
1423 | memcpy(&state->frontend.ops, &lg2160_ops, | |
1424 | sizeof(struct dvb_frontend_ops)); | |
1425 | break; | |
1426 | case LG2161: | |
1427 | memcpy(&state->frontend.ops, &lg2161_ops, | |
1428 | sizeof(struct dvb_frontend_ops)); | |
1429 | break; | |
1430 | } | |
1431 | ||
1432 | state->frontend.demodulator_priv = state; | |
1433 | state->current_frequency = -1; | |
1434 | /* parade 1 by default */ | |
1435 | state->frontend.dtv_property_cache.atscmh_parade_id = 1; | |
1436 | ||
1437 | return &state->frontend; | |
e26f2ae4 MK |
1438 | } |
1439 | EXPORT_SYMBOL(lg2160_attach); | |
1440 | ||
1441 | MODULE_DESCRIPTION("LG Electronics LG216x ATSC/MH Demodulator Driver"); | |
1442 | MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>"); | |
1443 | MODULE_LICENSE("GPL"); | |
1444 | MODULE_VERSION("0.3"); |