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Linux-2.6.12-rc2
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / media / dvb / frontends / stv0299.c
blob15b40541b62d1c8bb0065f051a382a4e07c198bb
1 /*
2 Driver for ST STV0299 demodulator
3
4 Copyright (C) 2001-2002 Convergence Integrated Media GmbH
5 <ralph@convergence.de>,
6 <holger@convergence.de>,
7 <js@convergence.de>
8
9
10 Philips SU1278/SH
11
12 Copyright (C) 2002 by Peter Schildmann <peter.schildmann@web.de>
13
14
15 LG TDQF-S001F
16
17 Copyright (C) 2002 Felix Domke <tmbinc@elitedvb.net>
18 & Andreas Oberritter <obi@linuxtv.org>
19
20
21 Support for Samsung TBMU24112IMB used on Technisat SkyStar2 rev. 2.6B
22
23 Copyright (C) 2003 Vadim Catana <skystar@moldova.cc>:
24
25 Support for Philips SU1278 on Technotrend hardware
26
27 Copyright (C) 2004 Andrew de Quincey <adq_dvb@lidskialf.net>
28
29 This program is free software; you can redistribute it and/or modify
30 it under the terms of the GNU General Public License as published by
31 the Free Software Foundation; either version 2 of the License, or
32 (at your option) any later version.
33
34 This program is distributed in the hope that it will be useful,
35 but WITHOUT ANY WARRANTY; without even the implied warranty of
36 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 GNU General Public License for more details.
38
39 You should have received a copy of the GNU General Public License
40 along with this program; if not, write to the Free Software
41 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
42
43 */
44
45 #include <linux/init.h>
46 #include <linux/kernel.h>
47 #include <linux/module.h>
48 #include <linux/moduleparam.h>
49 #include <linux/string.h>
50 #include <linux/slab.h>
51 #include <asm/div64.h>
52
53 #include "dvb_frontend.h"
54 #include "stv0299.h"
55
56 struct stv0299_state {
57 struct i2c_adapter* i2c;
58 struct dvb_frontend_ops ops;
59 const struct stv0299_config* config;
60 struct dvb_frontend frontend;
61
62 u8 initialised:1;
63 u32 tuner_frequency;
64 u32 symbol_rate;
65 fe_code_rate_t fec_inner;
66 int errmode;
67 };
68
69 #define STATUS_BER 0
70 #define STATUS_UCBLOCKS 1
71
72 static int debug;
73 #define dprintk(args...) \
74 do { \
75 if (debug) printk(KERN_DEBUG "stv0299: " args); \
76 } while (0)
77
78
79 static int stv0299_writeregI (struct stv0299_state* state, u8 reg, u8 data)
80 {
81 int ret;
82 u8 buf [] = { reg, data };
83 struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
84
85 ret = i2c_transfer (state->i2c, &msg, 1);
86
87 if (ret != 1)
88 dprintk("%s: writereg error (reg == 0x%02x, val == 0x%02x, "
89 "ret == %i)\n", __FUNCTION__, reg, data, ret);
90
91 return (ret != 1) ? -EREMOTEIO : 0;
92 }
93
94 int stv0299_writereg (struct dvb_frontend* fe, u8 reg, u8 data)
95 {
96 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
97
98 return stv0299_writeregI(state, reg, data);
99 }
100
101 static u8 stv0299_readreg (struct stv0299_state* state, u8 reg)
102 {
103 int ret;
104 u8 b0 [] = { reg };
105 u8 b1 [] = { 0 };
106 struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 },
107 { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
108
109 ret = i2c_transfer (state->i2c, msg, 2);
110
111 if (ret != 2)
112 dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n",
113 __FUNCTION__, reg, ret);
114
115 return b1[0];
116 }
117
118 static int stv0299_readregs (struct stv0299_state* state, u8 reg1, u8 *b, u8 len)
119 {
120 int ret;
121 struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = &reg1, .len = 1 },
122 { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } };
123
124 ret = i2c_transfer (state->i2c, msg, 2);
125
126 if (ret != 2)
127 dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret);
128
129 return ret == 2 ? 0 : ret;
130 }
131
132 static int stv0299_set_FEC (struct stv0299_state* state, fe_code_rate_t fec)
133 {
134 dprintk ("%s\n", __FUNCTION__);
135
136 switch (fec) {
137 case FEC_AUTO:
138 {
139 return stv0299_writeregI (state, 0x31, 0x1f);
140 }
141 case FEC_1_2:
142 {
143 return stv0299_writeregI (state, 0x31, 0x01);
144 }
145 case FEC_2_3:
146 {
147 return stv0299_writeregI (state, 0x31, 0x02);
148 }
149 case FEC_3_4:
150 {
151 return stv0299_writeregI (state, 0x31, 0x04);
152 }
153 case FEC_5_6:
154 {
155 return stv0299_writeregI (state, 0x31, 0x08);
156 }
157 case FEC_7_8:
158 {
159 return stv0299_writeregI (state, 0x31, 0x10);
160 }
161 default:
162 {
163 return -EINVAL;
164 }
165 }
166 }
167
168 static fe_code_rate_t stv0299_get_fec (struct stv0299_state* state)
169 {
170 static fe_code_rate_t fec_tab [] = { FEC_2_3, FEC_3_4, FEC_5_6,
171 FEC_7_8, FEC_1_2 };
172 u8 index;
173
174 dprintk ("%s\n", __FUNCTION__);
175
176 index = stv0299_readreg (state, 0x1b);
177 index &= 0x7;
178
179 if (index > 4)
180 return FEC_AUTO;
181
182 return fec_tab [index];
183 }
184
185 static int stv0299_wait_diseqc_fifo (struct stv0299_state* state, int timeout)
186 {
187 unsigned long start = jiffies;
188
189 dprintk ("%s\n", __FUNCTION__);
190
191 while (stv0299_readreg(state, 0x0a) & 1) {
192 if (jiffies - start > timeout) {
193 dprintk ("%s: timeout!!\n", __FUNCTION__);
194 return -ETIMEDOUT;
195 }
196 msleep(10);
197 };
198
199 return 0;
200 }
201
202 static int stv0299_wait_diseqc_idle (struct stv0299_state* state, int timeout)
203 {
204 unsigned long start = jiffies;
205
206 dprintk ("%s\n", __FUNCTION__);
207
208 while ((stv0299_readreg(state, 0x0a) & 3) != 2 ) {
209 if (jiffies - start > timeout) {
210 dprintk ("%s: timeout!!\n", __FUNCTION__);
211 return -ETIMEDOUT;
212 }
213 msleep(10);
214 };
215
216 return 0;
217 }
218
219 static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate)
220 {
221 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
222 u64 big = srate;
223 u32 ratio;
224
225 // check rate is within limits
226 if ((srate < 1000000) || (srate > 45000000)) return -EINVAL;
227
228 // calculate value to program
229 big = big << 20;
230 big += (state->config->mclk-1); // round correctly
231 do_div(big, state->config->mclk);
232 ratio = big << 4;
233
234 return state->config->set_symbol_rate(fe, srate, ratio);
235 }
236
237 static int stv0299_get_symbolrate (struct stv0299_state* state)
238 {
239 u32 Mclk = state->config->mclk / 4096L;
240 u32 srate;
241 s32 offset;
242 u8 sfr[3];
243 s8 rtf;
244
245 dprintk ("%s\n", __FUNCTION__);
246
247 stv0299_readregs (state, 0x1f, sfr, 3);
248 stv0299_readregs (state, 0x1a, &rtf, 1);
249
250 srate = (sfr[0] << 8) | sfr[1];
251 srate *= Mclk;
252 srate /= 16;
253 srate += (sfr[2] >> 4) * Mclk / 256;
254 offset = (s32) rtf * (srate / 4096L);
255 offset /= 128;
256
257 dprintk ("%s : srate = %i\n", __FUNCTION__, srate);
258 dprintk ("%s : ofset = %i\n", __FUNCTION__, offset);
259
260 srate += offset;
261
262 srate += 1000;
263 srate /= 2000;
264 srate *= 2000;
265
266 return srate;
267 }
268
269 static int stv0299_send_diseqc_msg (struct dvb_frontend* fe,
270 struct dvb_diseqc_master_cmd *m)
271 {
272 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
273 u8 val;
274 int i;
275
276 dprintk ("%s\n", __FUNCTION__);
277
278 if (stv0299_wait_diseqc_idle (state, 100) < 0)
279 return -ETIMEDOUT;
280
281 val = stv0299_readreg (state, 0x08);
282
283 if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x6)) /* DiSEqC mode */
284 return -EREMOTEIO;
285
286 for (i=0; i<m->msg_len; i++) {
287 if (stv0299_wait_diseqc_fifo (state, 100) < 0)
288 return -ETIMEDOUT;
289
290 if (stv0299_writeregI (state, 0x09, m->msg[i]))
291 return -EREMOTEIO;
292 }
293
294 if (stv0299_wait_diseqc_idle (state, 100) < 0)
295 return -ETIMEDOUT;
296
297 return 0;
298 }
299
300 static int stv0299_send_diseqc_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
301 {
302 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
303 u8 val;
304
305 dprintk ("%s\n", __FUNCTION__);
306
307 if (stv0299_wait_diseqc_idle (state, 100) < 0)
308 return -ETIMEDOUT;
309
310 val = stv0299_readreg (state, 0x08);
311
312 if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x2)) /* burst mode */
313 return -EREMOTEIO;
314
315 if (stv0299_writeregI (state, 0x09, burst == SEC_MINI_A ? 0x00 : 0xff))
316 return -EREMOTEIO;
317
318 if (stv0299_wait_diseqc_idle (state, 100) < 0)
319 return -ETIMEDOUT;
320
321 if (stv0299_writeregI (state, 0x08, val))
322 return -EREMOTEIO;
323
324 return 0;
325 }
326
327 static int stv0299_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
328 {
329 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
330 u8 val;
331
332 if (stv0299_wait_diseqc_idle (state, 100) < 0)
333 return -ETIMEDOUT;
334
335 val = stv0299_readreg (state, 0x08);
336
337 switch (tone) {
338 case SEC_TONE_ON:
339 return stv0299_writeregI (state, 0x08, val | 0x3);
340
341 case SEC_TONE_OFF:
342 return stv0299_writeregI (state, 0x08, (val & ~0x3) | 0x02);
343
344 default:
345 return -EINVAL;
346 }
347 }
348
349 static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage)
350 {
351 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
352 u8 reg0x08;
353 u8 reg0x0c;
354
355 dprintk("%s: %s\n", __FUNCTION__,
356 voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
357 voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??");
358
359 reg0x08 = stv0299_readreg (state, 0x08);
360 reg0x0c = stv0299_readreg (state, 0x0c);
361
362 /**
363 * H/V switching over OP0, OP1 and OP2 are LNB power enable bits
364 */
365 reg0x0c &= 0x0f;
366
367 if (voltage == SEC_VOLTAGE_OFF) {
368 stv0299_writeregI (state, 0x0c, 0x00); /* LNB power off! */
369 return stv0299_writeregI (state, 0x08, 0x00); /* LNB power off! */
370 }
371
372 stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6));
373
374 switch (voltage) {
375 case SEC_VOLTAGE_13:
376 if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) reg0x0c |= 0x10;
377 else reg0x0c |= 0x40;
378
379 return stv0299_writeregI(state, 0x0c, reg0x0c);
380
381 case SEC_VOLTAGE_18:
382 return stv0299_writeregI(state, 0x0c, reg0x0c | 0x50);
383 default:
384 return -EINVAL;
385 };
386 }
387
388 static int stv0299_send_legacy_dish_cmd(struct dvb_frontend* fe, u32 cmd)
389 {
390 u8 last = 1;
391 int i;
392
393 /* reset voltage at the end
394 if((0x50 & stv0299_readreg (i2c, 0x0c)) == 0x50)
395 cmd |= 0x80;
396 else
397 cmd &= 0x7F;
398 */
399
400 cmd = cmd << 1;
401 dprintk("%s switch command: 0x%04x\n",__FUNCTION__, cmd);
402
403 stv0299_set_voltage(fe,SEC_VOLTAGE_18);
404 msleep(32);
405
406 for (i=0; i<9; i++) {
407 if((cmd & 0x01) != last) {
408 stv0299_set_voltage(fe, last ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18);
409 last = (last) ? 0 : 1;
410 }
411
412 cmd = cmd >> 1;
413
414 if (i != 8)
415 msleep(8);
416 }
417
418 return 0;
419 }
420
421 static int stv0299_init (struct dvb_frontend* fe)
422 {
423 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
424 int i;
425
426 dprintk("stv0299: init chip\n");
427
428 for (i=0; !(state->config->inittab[i] == 0xff && state->config->inittab[i+1] == 0xff); i+=2)
429 stv0299_writeregI(state, state->config->inittab[i], state->config->inittab[i+1]);
430
431 if (state->config->pll_init) {
432 stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */
433 state->config->pll_init(fe);
434 stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */
435 }
436
437 return 0;
438 }
439
440 static int stv0299_read_status(struct dvb_frontend* fe, fe_status_t* status)
441 {
442 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
443
444 u8 signal = 0xff - stv0299_readreg (state, 0x18);
445 u8 sync = stv0299_readreg (state, 0x1b);
446
447 dprintk ("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __FUNCTION__, sync);
448 *status = 0;
449
450 if (signal > 10)
451 *status |= FE_HAS_SIGNAL;
452
453 if (sync & 0x80)
454 *status |= FE_HAS_CARRIER;
455
456 if (sync & 0x10)
457 *status |= FE_HAS_VITERBI;
458
459 if (sync & 0x08)
460 *status |= FE_HAS_SYNC;
461
462 if ((sync & 0x98) == 0x98)
463 *status |= FE_HAS_LOCK;
464
465 return 0;
466 }
467
468 static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber)
469 {
470 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
471
472 if (state->errmode != STATUS_BER) return 0;
473 *ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e);
474
475 return 0;
476 }
477
478 static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength)
479 {
480 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
481
482 s32 signal = 0xffff - ((stv0299_readreg (state, 0x18) << 8)
483 | stv0299_readreg (state, 0x19));
484
485 dprintk ("%s : FE_READ_SIGNAL_STRENGTH : AGC2I: 0x%02x%02x, signal=0x%04x\n", __FUNCTION__,
486 stv0299_readreg (state, 0x18),
487 stv0299_readreg (state, 0x19), (int) signal);
488
489 signal = signal * 5 / 4;
490 *strength = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal;
491
492 return 0;
493 }
494
495 static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr)
496 {
497 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
498
499 s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8)
500 | stv0299_readreg (state, 0x25));
501 xsnr = 3 * (xsnr - 0xa100);
502 *snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr;
503
504 return 0;
505 }
506
507 static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
508 {
509 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
510
511 if (state->errmode != STATUS_UCBLOCKS) *ucblocks = 0;
512 else *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e);
513
514 return 0;
515 }
516
517 static int stv0299_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p)
518 {
519 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
520 int invval = 0;
521
522 dprintk ("%s : FE_SET_FRONTEND\n", __FUNCTION__);
523
524 // set the inversion
525 if (p->inversion == INVERSION_OFF) invval = 0;
526 else if (p->inversion == INVERSION_ON) invval = 1;
527 else {
528 printk("stv0299 does not support auto-inversion\n");
529 return -EINVAL;
530 }
531 if (state->config->invert) invval = (~invval) & 1;
532 stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval);
533
534 if (state->config->enhanced_tuning) {
535 /* check if we should do a finetune */
536 int frequency_delta = p->frequency - state->tuner_frequency;
537 int minmax = p->u.qpsk.symbol_rate / 2000;
538 if (minmax < 5000) minmax = 5000;
539
540 if ((frequency_delta > -minmax) && (frequency_delta < minmax) && (frequency_delta != 0) &&
541 (state->fec_inner == p->u.qpsk.fec_inner) &&
542 (state->symbol_rate == p->u.qpsk.symbol_rate)) {
543 int Drot_freq = (frequency_delta << 16) / (state->config->mclk / 1000);
544
545 // zap the derotator registers first
546 stv0299_writeregI(state, 0x22, 0x00);
547 stv0299_writeregI(state, 0x23, 0x00);
548
549 // now set them as we want
550 stv0299_writeregI(state, 0x22, Drot_freq >> 8);
551 stv0299_writeregI(state, 0x23, Drot_freq);
552 } else {
553 /* A "normal" tune is requested */
554 stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */
555 state->config->pll_set(fe, p);
556 stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */
557
558 stv0299_writeregI(state, 0x32, 0x80);
559 stv0299_writeregI(state, 0x22, 0x00);
560 stv0299_writeregI(state, 0x23, 0x00);
561 stv0299_writeregI(state, 0x32, 0x19);
562 stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate);
563 stv0299_set_FEC (state, p->u.qpsk.fec_inner);
564 }
565 } else {
566 stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */
567 state->config->pll_set(fe, p);
568 stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */
569
570 stv0299_set_FEC (state, p->u.qpsk.fec_inner);
571 stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate);
572 stv0299_writeregI(state, 0x22, 0x00);
573 stv0299_writeregI(state, 0x23, 0x00);
574 stv0299_readreg (state, 0x23);
575 stv0299_writeregI(state, 0x12, 0xb9);
576 }
577
578 state->tuner_frequency = p->frequency;
579 state->fec_inner = p->u.qpsk.fec_inner;
580 state->symbol_rate = p->u.qpsk.symbol_rate;
581
582 return 0;
583 }
584
585 static int stv0299_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p)
586 {
587 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
588 s32 derot_freq;
589 int invval;
590
591 derot_freq = (s32)(s16) ((stv0299_readreg (state, 0x22) << 8)
592 | stv0299_readreg (state, 0x23));
593
594 derot_freq *= (state->config->mclk >> 16);
595 derot_freq += 500;
596 derot_freq /= 1000;
597
598 p->frequency += derot_freq;
599
600 invval = stv0299_readreg (state, 0x0c) & 1;
601 if (state->config->invert) invval = (~invval) & 1;
602 p->inversion = invval ? INVERSION_ON : INVERSION_OFF;
603
604 p->u.qpsk.fec_inner = stv0299_get_fec (state);
605 p->u.qpsk.symbol_rate = stv0299_get_symbolrate (state);
606
607 return 0;
608 }
609
610 static int stv0299_sleep(struct dvb_frontend* fe)
611 {
612 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
613
614 stv0299_writeregI(state, 0x02, 0x80);
615 state->initialised = 0;
616
617 return 0;
618 }
619
620 static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings)
621 {
622 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
623
624 fesettings->min_delay_ms = state->config->min_delay_ms;
625 if (fesettings->parameters.u.qpsk.symbol_rate < 10000000) {
626 fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 32000;
627 fesettings->max_drift = 5000;
628 } else {
629 fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 16000;
630 fesettings->max_drift = fesettings->parameters.u.qpsk.symbol_rate / 2000;
631 }
632 return 0;
633 }
634
635 static void stv0299_release(struct dvb_frontend* fe)
636 {
637 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv;
638 kfree(state);
639 }
640
641 static struct dvb_frontend_ops stv0299_ops;
642
643 struct dvb_frontend* stv0299_attach(const struct stv0299_config* config,
644 struct i2c_adapter* i2c)
645 {
646 struct stv0299_state* state = NULL;
647 int id;
648
649 /* allocate memory for the internal state */
650 state = (struct stv0299_state*) kmalloc(sizeof(struct stv0299_state), GFP_KERNEL);
651 if (state == NULL) goto error;
652
653 /* setup the state */
654 state->config = config;
655 state->i2c = i2c;
656 memcpy(&state->ops, &stv0299_ops, sizeof(struct dvb_frontend_ops));
657 state->initialised = 0;
658 state->tuner_frequency = 0;
659 state->symbol_rate = 0;
660 state->fec_inner = 0;
661 state->errmode = STATUS_BER;
662
663 /* check if the demod is there */
664 stv0299_writeregI(state, 0x02, 0x34); /* standby off */
665 msleep(200);
666 id = stv0299_readreg(state, 0x00);
667
668 /* register 0x00 contains 0xa1 for STV0299 and STV0299B */
669 /* register 0x00 might contain 0x80 when returning from standby */
670 if (id != 0xa1 && id != 0x80) goto error;
671
672 /* create dvb_frontend */
673 state->frontend.ops = &state->ops;
674 state->frontend.demodulator_priv = state;
675 return &state->frontend;
676
677 error:
678 kfree(state);
679 return NULL;
680 }
681
682 static struct dvb_frontend_ops stv0299_ops = {
683
684 .info = {
685 .name = "ST STV0299 DVB-S",
686 .type = FE_QPSK,
687 .frequency_min = 950000,
688 .frequency_max = 2150000,
689 .frequency_stepsize = 125, /* kHz for QPSK frontends */
690 .frequency_tolerance = 0,
691 .symbol_rate_min = 1000000,
692 .symbol_rate_max = 45000000,
693 .symbol_rate_tolerance = 500, /* ppm */
694 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
695 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
696 FE_CAN_QPSK |
697 FE_CAN_FEC_AUTO
698 },
699
700 .release = stv0299_release,
701
702 .init = stv0299_init,
703 .sleep = stv0299_sleep,
704
705 .set_frontend = stv0299_set_frontend,
706 .get_frontend = stv0299_get_frontend,
707 .get_tune_settings = stv0299_get_tune_settings,
708
709 .read_status = stv0299_read_status,
710 .read_ber = stv0299_read_ber,
711 .read_signal_strength = stv0299_read_signal_strength,
712 .read_snr = stv0299_read_snr,
713 .read_ucblocks = stv0299_read_ucblocks,
714
715 .diseqc_send_master_cmd = stv0299_send_diseqc_msg,
716 .diseqc_send_burst = stv0299_send_diseqc_burst,
717 .set_tone = stv0299_set_tone,
718 .set_voltage = stv0299_set_voltage,
719 .dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd,
720 };
721
722 module_param(debug, int, 0644);
723 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
724
725 MODULE_DESCRIPTION("ST STV0299 DVB Demodulator driver");
726 MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Peter Schildmann, Felix Domke, "
727 "Andreas Oberritter, Andrew de Quincey, Kenneth Aafløy");
728 MODULE_LICENSE("GPL");
729
730 EXPORT_SYMBOL(stv0299_writereg);
731 EXPORT_SYMBOL(stv0299_attach);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree