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[PATCH] fix missing includes
[deliverable/linux.git] / drivers / media / dvb / frontends / stv0299.c
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 <linux/jiffies.h>
52 #include <asm/div64.h>
53
54 #include "dvb_frontend.h"
55 #include "stv0299.h"
56
57 struct stv0299_state {
58 struct i2c_adapter* i2c;
59 struct dvb_frontend_ops ops;
60 const struct stv0299_config* config;
61 struct dvb_frontend frontend;
62
63 u8 initialised:1;
64 u32 tuner_frequency;
65 u32 symbol_rate;
66 fe_code_rate_t fec_inner;
67 };
68
69 static int debug;
70 static int debug_legacy_dish_switch;
71 #define dprintk(args...) \
72 do { \
73 if (debug) printk(KERN_DEBUG "stv0299: " args); \
74 } while (0)
75
76
77 static int stv0299_writeregI (struct stv0299_state* state, u8 reg, u8 data)
78 {
79 int ret;
80 u8 buf [] = { reg, data };
81 struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
82
83 ret = i2c_transfer (state->i2c, &msg, 1);
84
85 if (ret != 1)
86 dprintk("%s: writereg error (reg == 0x%02x, val == 0x%02x, "
87 "ret == %i)\n", __FUNCTION__, reg, data, ret);
88
89 return (ret != 1) ? -EREMOTEIO : 0;
90 }
91
92 int stv0299_writereg (struct dvb_frontend* fe, u8 reg, u8 data)
93 {
94 struct stv0299_state* state = fe->demodulator_priv;
95
96 return stv0299_writeregI(state, reg, data);
97 }
98
99 static u8 stv0299_readreg (struct stv0299_state* state, u8 reg)
100 {
101 int ret;
102 u8 b0 [] = { reg };
103 u8 b1 [] = { 0 };
104 struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 },
105 { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
106
107 ret = i2c_transfer (state->i2c, msg, 2);
108
109 if (ret != 2)
110 dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n",
111 __FUNCTION__, reg, ret);
112
113 return b1[0];
114 }
115
116 static int stv0299_readregs (struct stv0299_state* state, u8 reg1, u8 *b, u8 len)
117 {
118 int ret;
119 struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = &reg1, .len = 1 },
120 { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } };
121
122 ret = i2c_transfer (state->i2c, msg, 2);
123
124 if (ret != 2)
125 dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret);
126
127 return ret == 2 ? 0 : ret;
128 }
129
130 static int stv0299_set_FEC (struct stv0299_state* state, fe_code_rate_t fec)
131 {
132 dprintk ("%s\n", __FUNCTION__);
133
134 switch (fec) {
135 case FEC_AUTO:
136 {
137 return stv0299_writeregI (state, 0x31, 0x1f);
138 }
139 case FEC_1_2:
140 {
141 return stv0299_writeregI (state, 0x31, 0x01);
142 }
143 case FEC_2_3:
144 {
145 return stv0299_writeregI (state, 0x31, 0x02);
146 }
147 case FEC_3_4:
148 {
149 return stv0299_writeregI (state, 0x31, 0x04);
150 }
151 case FEC_5_6:
152 {
153 return stv0299_writeregI (state, 0x31, 0x08);
154 }
155 case FEC_7_8:
156 {
157 return stv0299_writeregI (state, 0x31, 0x10);
158 }
159 default:
160 {
161 return -EINVAL;
162 }
163 }
164 }
165
166 static fe_code_rate_t stv0299_get_fec (struct stv0299_state* state)
167 {
168 static fe_code_rate_t fec_tab [] = { FEC_2_3, FEC_3_4, FEC_5_6,
169 FEC_7_8, FEC_1_2 };
170 u8 index;
171
172 dprintk ("%s\n", __FUNCTION__);
173
174 index = stv0299_readreg (state, 0x1b);
175 index &= 0x7;
176
177 if (index > 4)
178 return FEC_AUTO;
179
180 return fec_tab [index];
181 }
182
183 static int stv0299_wait_diseqc_fifo (struct stv0299_state* state, int timeout)
184 {
185 unsigned long start = jiffies;
186
187 dprintk ("%s\n", __FUNCTION__);
188
189 while (stv0299_readreg(state, 0x0a) & 1) {
190 if (jiffies - start > timeout) {
191 dprintk ("%s: timeout!!\n", __FUNCTION__);
192 return -ETIMEDOUT;
193 }
194 msleep(10);
195 };
196
197 return 0;
198 }
199
200 static int stv0299_wait_diseqc_idle (struct stv0299_state* state, int timeout)
201 {
202 unsigned long start = jiffies;
203
204 dprintk ("%s\n", __FUNCTION__);
205
206 while ((stv0299_readreg(state, 0x0a) & 3) != 2 ) {
207 if (jiffies - start > timeout) {
208 dprintk ("%s: timeout!!\n", __FUNCTION__);
209 return -ETIMEDOUT;
210 }
211 msleep(10);
212 };
213
214 return 0;
215 }
216
217 static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate)
218 {
219 struct stv0299_state* state = fe->demodulator_priv;
220 u64 big = srate;
221 u32 ratio;
222
223 // check rate is within limits
224 if ((srate < 1000000) || (srate > 45000000)) return -EINVAL;
225
226 // calculate value to program
227 big = big << 20;
228 big += (state->config->mclk-1); // round correctly
229 do_div(big, state->config->mclk);
230 ratio = big << 4;
231
232 return state->config->set_symbol_rate(fe, srate, ratio);
233 }
234
235 static int stv0299_get_symbolrate (struct stv0299_state* state)
236 {
237 u32 Mclk = state->config->mclk / 4096L;
238 u32 srate;
239 s32 offset;
240 u8 sfr[3];
241 s8 rtf;
242
243 dprintk ("%s\n", __FUNCTION__);
244
245 stv0299_readregs (state, 0x1f, sfr, 3);
246 stv0299_readregs (state, 0x1a, &rtf, 1);
247
248 srate = (sfr[0] << 8) | sfr[1];
249 srate *= Mclk;
250 srate /= 16;
251 srate += (sfr[2] >> 4) * Mclk / 256;
252 offset = (s32) rtf * (srate / 4096L);
253 offset /= 128;
254
255 dprintk ("%s : srate = %i\n", __FUNCTION__, srate);
256 dprintk ("%s : ofset = %i\n", __FUNCTION__, offset);
257
258 srate += offset;
259
260 srate += 1000;
261 srate /= 2000;
262 srate *= 2000;
263
264 return srate;
265 }
266
267 static int stv0299_send_diseqc_msg (struct dvb_frontend* fe,
268 struct dvb_diseqc_master_cmd *m)
269 {
270 struct stv0299_state* state = fe->demodulator_priv;
271 u8 val;
272 int i;
273
274 dprintk ("%s\n", __FUNCTION__);
275
276 if (stv0299_wait_diseqc_idle (state, 100) < 0)
277 return -ETIMEDOUT;
278
279 val = stv0299_readreg (state, 0x08);
280
281 if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x6)) /* DiSEqC mode */
282 return -EREMOTEIO;
283
284 for (i=0; i<m->msg_len; i++) {
285 if (stv0299_wait_diseqc_fifo (state, 100) < 0)
286 return -ETIMEDOUT;
287
288 if (stv0299_writeregI (state, 0x09, m->msg[i]))
289 return -EREMOTEIO;
290 }
291
292 if (stv0299_wait_diseqc_idle (state, 100) < 0)
293 return -ETIMEDOUT;
294
295 return 0;
296 }
297
298 static int stv0299_send_diseqc_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
299 {
300 struct stv0299_state* state = fe->demodulator_priv;
301 u8 val;
302
303 dprintk ("%s\n", __FUNCTION__);
304
305 if (stv0299_wait_diseqc_idle (state, 100) < 0)
306 return -ETIMEDOUT;
307
308 val = stv0299_readreg (state, 0x08);
309
310 if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x2)) /* burst mode */
311 return -EREMOTEIO;
312
313 if (stv0299_writeregI (state, 0x09, burst == SEC_MINI_A ? 0x00 : 0xff))
314 return -EREMOTEIO;
315
316 if (stv0299_wait_diseqc_idle (state, 100) < 0)
317 return -ETIMEDOUT;
318
319 if (stv0299_writeregI (state, 0x08, val))
320 return -EREMOTEIO;
321
322 return 0;
323 }
324
325 static int stv0299_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
326 {
327 struct stv0299_state* state = fe->demodulator_priv;
328 u8 val;
329
330 if (stv0299_wait_diseqc_idle (state, 100) < 0)
331 return -ETIMEDOUT;
332
333 val = stv0299_readreg (state, 0x08);
334
335 switch (tone) {
336 case SEC_TONE_ON:
337 return stv0299_writeregI (state, 0x08, val | 0x3);
338
339 case SEC_TONE_OFF:
340 return stv0299_writeregI (state, 0x08, (val & ~0x3) | 0x02);
341
342 default:
343 return -EINVAL;
344 }
345 }
346
347 static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage)
348 {
349 struct stv0299_state* state = fe->demodulator_priv;
350 u8 reg0x08;
351 u8 reg0x0c;
352
353 dprintk("%s: %s\n", __FUNCTION__,
354 voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
355 voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??");
356
357 reg0x08 = stv0299_readreg (state, 0x08);
358 reg0x0c = stv0299_readreg (state, 0x0c);
359
360 /**
361 * H/V switching over OP0, OP1 and OP2 are LNB power enable bits
362 */
363 reg0x0c &= 0x0f;
364
365 if (voltage == SEC_VOLTAGE_OFF) {
366 stv0299_writeregI (state, 0x0c, 0x00); /* LNB power off! */
367 return stv0299_writeregI (state, 0x08, 0x00); /* LNB power off! */
368 }
369
370 stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6));
371
372 switch (voltage) {
373 case SEC_VOLTAGE_13:
374 if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) reg0x0c |= 0x10;
375 else reg0x0c |= 0x40;
376
377 return stv0299_writeregI(state, 0x0c, reg0x0c);
378
379 case SEC_VOLTAGE_18:
380 return stv0299_writeregI(state, 0x0c, reg0x0c | 0x50);
381 default:
382 return -EINVAL;
383 };
384 }
385
386 static inline s32 stv0299_calc_usec_delay (struct timeval lasttime, struct timeval curtime)
387 {
388 return ((curtime.tv_usec < lasttime.tv_usec) ?
389 1000000 - lasttime.tv_usec + curtime.tv_usec :
390 curtime.tv_usec - lasttime.tv_usec);
391 }
392
393 static void stv0299_sleep_until (struct timeval *waketime, u32 add_usec)
394 {
395 struct timeval lasttime;
396 s32 delta, newdelta;
397
398 waketime->tv_usec += add_usec;
399 if (waketime->tv_usec >= 1000000) {
400 waketime->tv_usec -= 1000000;
401 waketime->tv_sec++;
402 }
403
404 do_gettimeofday (&lasttime);
405 delta = stv0299_calc_usec_delay (lasttime, *waketime);
406 if (delta > 2500) {
407 msleep ((delta - 1500) / 1000);
408 do_gettimeofday (&lasttime);
409 newdelta = stv0299_calc_usec_delay (lasttime, *waketime);
410 delta = (newdelta > delta) ? 0 : newdelta;
411 }
412 if (delta > 0)
413 udelay (delta);
414 }
415
416 static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, u32 cmd)
417 {
418 struct stv0299_state* state = fe->demodulator_priv;
419 u8 reg0x08;
420 u8 reg0x0c;
421 u8 lv_mask = 0x40;
422 u8 last = 1;
423 int i;
424 struct timeval nexttime;
425 struct timeval tv[10];
426
427 reg0x08 = stv0299_readreg (state, 0x08);
428 reg0x0c = stv0299_readreg (state, 0x0c);
429 reg0x0c &= 0x0f;
430 stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6));
431 if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0)
432 lv_mask = 0x10;
433
434 cmd = cmd << 1;
435 if (debug_legacy_dish_switch)
436 printk ("%s switch command: 0x%04x\n",__FUNCTION__, cmd);
437
438 do_gettimeofday (&nexttime);
439 if (debug_legacy_dish_switch)
440 memcpy (&tv[0], &nexttime, sizeof (struct timeval));
441 stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */
442
443 stv0299_sleep_until (&nexttime, 32000);
444
445 for (i=0; i<9; i++) {
446 if (debug_legacy_dish_switch)
447 do_gettimeofday (&tv[i+1]);
448 if((cmd & 0x01) != last) {
449 /* set voltage to (last ? 13V : 18V) */
450 stv0299_writeregI (state, 0x0c, reg0x0c | (last ? lv_mask : 0x50));
451 last = (last) ? 0 : 1;
452 }
453
454 cmd = cmd >> 1;
455
456 if (i != 8)
457 stv0299_sleep_until (&nexttime, 8000);
458 }
459 if (debug_legacy_dish_switch) {
460 printk ("%s(%d): switch delay (should be 32k followed by all 8k\n",
461 __FUNCTION__, fe->dvb->num);
462 for (i=1; i < 10; i++)
463 printk ("%d: %d\n", i, stv0299_calc_usec_delay (tv[i-1] , tv[i]));
464 }
465
466 return 0;
467 }
468
469 static int stv0299_init (struct dvb_frontend* fe)
470 {
471 struct stv0299_state* state = fe->demodulator_priv;
472 int i;
473
474 dprintk("stv0299: init chip\n");
475
476 for (i=0; !(state->config->inittab[i] == 0xff && state->config->inittab[i+1] == 0xff); i+=2)
477 stv0299_writeregI(state, state->config->inittab[i], state->config->inittab[i+1]);
478
479 if (state->config->pll_init) {
480 stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */
481 state->config->pll_init(fe, state->i2c);
482 stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */
483 }
484
485 return 0;
486 }
487
488 static int stv0299_read_status(struct dvb_frontend* fe, fe_status_t* status)
489 {
490 struct stv0299_state* state = fe->demodulator_priv;
491
492 u8 signal = 0xff - stv0299_readreg (state, 0x18);
493 u8 sync = stv0299_readreg (state, 0x1b);
494
495 dprintk ("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __FUNCTION__, sync);
496 *status = 0;
497
498 if (signal > 10)
499 *status |= FE_HAS_SIGNAL;
500
501 if (sync & 0x80)
502 *status |= FE_HAS_CARRIER;
503
504 if (sync & 0x10)
505 *status |= FE_HAS_VITERBI;
506
507 if (sync & 0x08)
508 *status |= FE_HAS_SYNC;
509
510 if ((sync & 0x98) == 0x98)
511 *status |= FE_HAS_LOCK;
512
513 return 0;
514 }
515
516 static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber)
517 {
518 struct stv0299_state* state = fe->demodulator_priv;
519
520 stv0299_writeregI(state, 0x34, (stv0299_readreg(state, 0x34) & 0xcf) | 0x10);
521 msleep(100);
522 *ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e);
523
524 return 0;
525 }
526
527 static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength)
528 {
529 struct stv0299_state* state = fe->demodulator_priv;
530
531 s32 signal = 0xffff - ((stv0299_readreg (state, 0x18) << 8)
532 | stv0299_readreg (state, 0x19));
533
534 dprintk ("%s : FE_READ_SIGNAL_STRENGTH : AGC2I: 0x%02x%02x, signal=0x%04x\n", __FUNCTION__,
535 stv0299_readreg (state, 0x18),
536 stv0299_readreg (state, 0x19), (int) signal);
537
538 signal = signal * 5 / 4;
539 *strength = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal;
540
541 return 0;
542 }
543
544 static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr)
545 {
546 struct stv0299_state* state = fe->demodulator_priv;
547
548 s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8)
549 | stv0299_readreg (state, 0x25));
550 xsnr = 3 * (xsnr - 0xa100);
551 *snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr;
552
553 return 0;
554 }
555
556 static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
557 {
558 struct stv0299_state* state = fe->demodulator_priv;
559
560 stv0299_writeregI(state, 0x34, (stv0299_readreg(state, 0x34) & 0xcf) | 0x30);
561 msleep(100);
562 *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e);
563
564 return 0;
565 }
566
567 static int stv0299_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p)
568 {
569 struct stv0299_state* state = fe->demodulator_priv;
570 int invval = 0;
571
572 dprintk ("%s : FE_SET_FRONTEND\n", __FUNCTION__);
573
574 // set the inversion
575 if (p->inversion == INVERSION_OFF) invval = 0;
576 else if (p->inversion == INVERSION_ON) invval = 1;
577 else {
578 printk("stv0299 does not support auto-inversion\n");
579 return -EINVAL;
580 }
581 if (state->config->invert) invval = (~invval) & 1;
582 stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval);
583
584 if (state->config->enhanced_tuning) {
585 /* check if we should do a finetune */
586 int frequency_delta = p->frequency - state->tuner_frequency;
587 int minmax = p->u.qpsk.symbol_rate / 2000;
588 if (minmax < 5000) minmax = 5000;
589
590 if ((frequency_delta > -minmax) && (frequency_delta < minmax) && (frequency_delta != 0) &&
591 (state->fec_inner == p->u.qpsk.fec_inner) &&
592 (state->symbol_rate == p->u.qpsk.symbol_rate)) {
593 int Drot_freq = (frequency_delta << 16) / (state->config->mclk / 1000);
594
595 // zap the derotator registers first
596 stv0299_writeregI(state, 0x22, 0x00);
597 stv0299_writeregI(state, 0x23, 0x00);
598
599 // now set them as we want
600 stv0299_writeregI(state, 0x22, Drot_freq >> 8);
601 stv0299_writeregI(state, 0x23, Drot_freq);
602 } else {
603 /* A "normal" tune is requested */
604 stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */
605 state->config->pll_set(fe, state->i2c, p);
606 stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */
607
608 stv0299_writeregI(state, 0x32, 0x80);
609 stv0299_writeregI(state, 0x22, 0x00);
610 stv0299_writeregI(state, 0x23, 0x00);
611 stv0299_writeregI(state, 0x32, 0x19);
612 stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate);
613 stv0299_set_FEC (state, p->u.qpsk.fec_inner);
614 }
615 } else {
616 stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */
617 state->config->pll_set(fe, state->i2c, p);
618 stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */
619
620 stv0299_set_FEC (state, p->u.qpsk.fec_inner);
621 stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate);
622 stv0299_writeregI(state, 0x22, 0x00);
623 stv0299_writeregI(state, 0x23, 0x00);
624 stv0299_readreg (state, 0x23);
625 stv0299_writeregI(state, 0x12, 0xb9);
626 }
627
628 state->tuner_frequency = p->frequency;
629 state->fec_inner = p->u.qpsk.fec_inner;
630 state->symbol_rate = p->u.qpsk.symbol_rate;
631
632 return 0;
633 }
634
635 static int stv0299_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p)
636 {
637 struct stv0299_state* state = fe->demodulator_priv;
638 s32 derot_freq;
639 int invval;
640
641 derot_freq = (s32)(s16) ((stv0299_readreg (state, 0x22) << 8)
642 | stv0299_readreg (state, 0x23));
643
644 derot_freq *= (state->config->mclk >> 16);
645 derot_freq += 500;
646 derot_freq /= 1000;
647
648 p->frequency += derot_freq;
649
650 invval = stv0299_readreg (state, 0x0c) & 1;
651 if (state->config->invert) invval = (~invval) & 1;
652 p->inversion = invval ? INVERSION_ON : INVERSION_OFF;
653
654 p->u.qpsk.fec_inner = stv0299_get_fec (state);
655 p->u.qpsk.symbol_rate = stv0299_get_symbolrate (state);
656
657 return 0;
658 }
659
660 static int stv0299_sleep(struct dvb_frontend* fe)
661 {
662 struct stv0299_state* state = fe->demodulator_priv;
663
664 stv0299_writeregI(state, 0x02, 0x80);
665 state->initialised = 0;
666
667 return 0;
668 }
669
670 static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings)
671 {
672 struct stv0299_state* state = fe->demodulator_priv;
673
674 fesettings->min_delay_ms = state->config->min_delay_ms;
675 if (fesettings->parameters.u.qpsk.symbol_rate < 10000000) {
676 fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 32000;
677 fesettings->max_drift = 5000;
678 } else {
679 fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 16000;
680 fesettings->max_drift = fesettings->parameters.u.qpsk.symbol_rate / 2000;
681 }
682 return 0;
683 }
684
685 static void stv0299_release(struct dvb_frontend* fe)
686 {
687 struct stv0299_state* state = fe->demodulator_priv;
688 kfree(state);
689 }
690
691 static struct dvb_frontend_ops stv0299_ops;
692
693 struct dvb_frontend* stv0299_attach(const struct stv0299_config* config,
694 struct i2c_adapter* i2c)
695 {
696 struct stv0299_state* state = NULL;
697 int id;
698
699 /* allocate memory for the internal state */
700 state = kmalloc(sizeof(struct stv0299_state), GFP_KERNEL);
701 if (state == NULL) goto error;
702
703 /* setup the state */
704 state->config = config;
705 state->i2c = i2c;
706 memcpy(&state->ops, &stv0299_ops, sizeof(struct dvb_frontend_ops));
707 state->initialised = 0;
708 state->tuner_frequency = 0;
709 state->symbol_rate = 0;
710 state->fec_inner = 0;
711
712 /* check if the demod is there */
713 stv0299_writeregI(state, 0x02, 0x34); /* standby off */
714 msleep(200);
715 id = stv0299_readreg(state, 0x00);
716
717 /* register 0x00 contains 0xa1 for STV0299 and STV0299B */
718 /* register 0x00 might contain 0x80 when returning from standby */
719 if (id != 0xa1 && id != 0x80) goto error;
720
721 /* create dvb_frontend */
722 state->frontend.ops = &state->ops;
723 state->frontend.demodulator_priv = state;
724 return &state->frontend;
725
726 error:
727 kfree(state);
728 return NULL;
729 }
730
731 static struct dvb_frontend_ops stv0299_ops = {
732
733 .info = {
734 .name = "ST STV0299 DVB-S",
735 .type = FE_QPSK,
736 .frequency_min = 950000,
737 .frequency_max = 2150000,
738 .frequency_stepsize = 125, /* kHz for QPSK frontends */
739 .frequency_tolerance = 0,
740 .symbol_rate_min = 1000000,
741 .symbol_rate_max = 45000000,
742 .symbol_rate_tolerance = 500, /* ppm */
743 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
744 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
745 FE_CAN_QPSK |
746 FE_CAN_FEC_AUTO
747 },
748
749 .release = stv0299_release,
750
751 .init = stv0299_init,
752 .sleep = stv0299_sleep,
753
754 .set_frontend = stv0299_set_frontend,
755 .get_frontend = stv0299_get_frontend,
756 .get_tune_settings = stv0299_get_tune_settings,
757
758 .read_status = stv0299_read_status,
759 .read_ber = stv0299_read_ber,
760 .read_signal_strength = stv0299_read_signal_strength,
761 .read_snr = stv0299_read_snr,
762 .read_ucblocks = stv0299_read_ucblocks,
763
764 .diseqc_send_master_cmd = stv0299_send_diseqc_msg,
765 .diseqc_send_burst = stv0299_send_diseqc_burst,
766 .set_tone = stv0299_set_tone,
767 .set_voltage = stv0299_set_voltage,
768 .dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd,
769 };
770
771 module_param(debug_legacy_dish_switch, int, 0444);
772 MODULE_PARM_DESC(debug_legacy_dish_switch, "Enable timing analysis for Dish Network legacy switches");
773
774 module_param(debug, int, 0644);
775 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
776
777 MODULE_DESCRIPTION("ST STV0299 DVB Demodulator driver");
778 MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Peter Schildmann, Felix Domke, "
779 "Andreas Oberritter, Andrew de Quincey, Kenneth Aafløy");
780 MODULE_LICENSE("GPL");
781
782 EXPORT_SYMBOL(stv0299_writereg);
783 EXPORT_SYMBOL(stv0299_attach);
Linux kernel - Deliverables
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