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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/ktime.h> | |
48 | #include <linux/module.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 | const struct stv0299_config* config; | |
60 | struct dvb_frontend frontend; | |
61 | ||
62 | u8 initialised:1; | |
63 | u32 tuner_frequency; | |
64 | u32 symbol_rate; | |
65 | enum fe_code_rate fec_inner; | |
66 | int errmode; | |
67 | u32 ucblocks; | |
68 | u8 mcr_reg; | |
69 | }; | |
70 | ||
71 | #define STATUS_BER 0 | |
72 | #define STATUS_UCBLOCKS 1 | |
73 | ||
74 | static int debug; | |
75 | static int debug_legacy_dish_switch; | |
76 | #define dprintk(args...) \ | |
77 | do { \ | |
78 | if (debug) printk(KERN_DEBUG "stv0299: " args); \ | |
79 | } while (0) | |
80 | ||
81 | ||
82 | static int stv0299_writeregI (struct stv0299_state* state, u8 reg, u8 data) | |
83 | { | |
84 | int ret; | |
85 | u8 buf [] = { reg, data }; | |
86 | struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 }; | |
87 | ||
88 | ret = i2c_transfer (state->i2c, &msg, 1); | |
89 | ||
90 | if (ret != 1) | |
91 | dprintk("%s: writereg error (reg == 0x%02x, val == 0x%02x, ret == %i)\n", | |
92 | __func__, reg, data, ret); | |
93 | ||
94 | return (ret != 1) ? -EREMOTEIO : 0; | |
95 | } | |
96 | ||
97 | static int stv0299_write(struct dvb_frontend* fe, const u8 buf[], int len) | |
98 | { | |
99 | struct stv0299_state* state = fe->demodulator_priv; | |
100 | ||
101 | if (len != 2) | |
102 | return -EINVAL; | |
103 | ||
104 | return stv0299_writeregI(state, buf[0], buf[1]); | |
105 | } | |
106 | ||
107 | static u8 stv0299_readreg (struct stv0299_state* state, u8 reg) | |
108 | { | |
109 | int ret; | |
110 | u8 b0 [] = { reg }; | |
111 | u8 b1 [] = { 0 }; | |
112 | struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 }, | |
113 | { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } }; | |
114 | ||
115 | ret = i2c_transfer (state->i2c, msg, 2); | |
116 | ||
117 | if (ret != 2) | |
118 | dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", | |
119 | __func__, reg, ret); | |
120 | ||
121 | return b1[0]; | |
122 | } | |
123 | ||
124 | static int stv0299_readregs (struct stv0299_state* state, u8 reg1, u8 *b, u8 len) | |
125 | { | |
126 | int ret; | |
127 | struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = ®1, .len = 1 }, | |
128 | { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } }; | |
129 | ||
130 | ret = i2c_transfer (state->i2c, msg, 2); | |
131 | ||
132 | if (ret != 2) | |
133 | dprintk("%s: readreg error (ret == %i)\n", __func__, ret); | |
134 | ||
135 | return ret == 2 ? 0 : ret; | |
136 | } | |
137 | ||
138 | static int stv0299_set_FEC(struct stv0299_state *state, enum fe_code_rate fec) | |
139 | { | |
140 | dprintk ("%s\n", __func__); | |
141 | ||
142 | switch (fec) { | |
143 | case FEC_AUTO: | |
144 | { | |
145 | return stv0299_writeregI (state, 0x31, 0x1f); | |
146 | } | |
147 | case FEC_1_2: | |
148 | { | |
149 | return stv0299_writeregI (state, 0x31, 0x01); | |
150 | } | |
151 | case FEC_2_3: | |
152 | { | |
153 | return stv0299_writeregI (state, 0x31, 0x02); | |
154 | } | |
155 | case FEC_3_4: | |
156 | { | |
157 | return stv0299_writeregI (state, 0x31, 0x04); | |
158 | } | |
159 | case FEC_5_6: | |
160 | { | |
161 | return stv0299_writeregI (state, 0x31, 0x08); | |
162 | } | |
163 | case FEC_7_8: | |
164 | { | |
165 | return stv0299_writeregI (state, 0x31, 0x10); | |
166 | } | |
167 | default: | |
168 | { | |
169 | return -EINVAL; | |
170 | } | |
171 | } | |
172 | } | |
173 | ||
174 | static enum fe_code_rate stv0299_get_fec(struct stv0299_state *state) | |
175 | { | |
176 | static enum fe_code_rate fec_tab[] = { FEC_2_3, FEC_3_4, FEC_5_6, | |
177 | FEC_7_8, FEC_1_2 }; | |
178 | u8 index; | |
179 | ||
180 | dprintk ("%s\n", __func__); | |
181 | ||
182 | index = stv0299_readreg (state, 0x1b); | |
183 | index &= 0x7; | |
184 | ||
185 | if (index > 4) | |
186 | return FEC_AUTO; | |
187 | ||
188 | return fec_tab [index]; | |
189 | } | |
190 | ||
191 | static int stv0299_wait_diseqc_fifo (struct stv0299_state* state, int timeout) | |
192 | { | |
193 | unsigned long start = jiffies; | |
194 | ||
195 | dprintk ("%s\n", __func__); | |
196 | ||
197 | while (stv0299_readreg(state, 0x0a) & 1) { | |
198 | if (jiffies - start > timeout) { | |
199 | dprintk ("%s: timeout!!\n", __func__); | |
200 | return -ETIMEDOUT; | |
201 | } | |
202 | msleep(10); | |
203 | } | |
204 | ||
205 | return 0; | |
206 | } | |
207 | ||
208 | static int stv0299_wait_diseqc_idle (struct stv0299_state* state, int timeout) | |
209 | { | |
210 | unsigned long start = jiffies; | |
211 | ||
212 | dprintk ("%s\n", __func__); | |
213 | ||
214 | while ((stv0299_readreg(state, 0x0a) & 3) != 2 ) { | |
215 | if (jiffies - start > timeout) { | |
216 | dprintk ("%s: timeout!!\n", __func__); | |
217 | return -ETIMEDOUT; | |
218 | } | |
219 | msleep(10); | |
220 | } | |
221 | ||
222 | return 0; | |
223 | } | |
224 | ||
225 | static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate) | |
226 | { | |
227 | struct stv0299_state* state = fe->demodulator_priv; | |
228 | u64 big = srate; | |
229 | u32 ratio; | |
230 | ||
231 | // check rate is within limits | |
232 | if ((srate < 1000000) || (srate > 45000000)) return -EINVAL; | |
233 | ||
234 | // calculate value to program | |
235 | big = big << 20; | |
236 | big += (state->config->mclk-1); // round correctly | |
237 | do_div(big, state->config->mclk); | |
238 | ratio = big << 4; | |
239 | ||
240 | return state->config->set_symbol_rate(fe, srate, ratio); | |
241 | } | |
242 | ||
243 | static int stv0299_get_symbolrate (struct stv0299_state* state) | |
244 | { | |
245 | u32 Mclk = state->config->mclk / 4096L; | |
246 | u32 srate; | |
247 | s32 offset; | |
248 | u8 sfr[3]; | |
249 | s8 rtf; | |
250 | ||
251 | dprintk ("%s\n", __func__); | |
252 | ||
253 | stv0299_readregs (state, 0x1f, sfr, 3); | |
254 | stv0299_readregs (state, 0x1a, (u8 *)&rtf, 1); | |
255 | ||
256 | srate = (sfr[0] << 8) | sfr[1]; | |
257 | srate *= Mclk; | |
258 | srate /= 16; | |
259 | srate += (sfr[2] >> 4) * Mclk / 256; | |
260 | offset = (s32) rtf * (srate / 4096L); | |
261 | offset /= 128; | |
262 | ||
263 | dprintk ("%s : srate = %i\n", __func__, srate); | |
264 | dprintk ("%s : ofset = %i\n", __func__, offset); | |
265 | ||
266 | srate += offset; | |
267 | ||
268 | srate += 1000; | |
269 | srate /= 2000; | |
270 | srate *= 2000; | |
271 | ||
272 | return srate; | |
273 | } | |
274 | ||
275 | static int stv0299_send_diseqc_msg (struct dvb_frontend* fe, | |
276 | struct dvb_diseqc_master_cmd *m) | |
277 | { | |
278 | struct stv0299_state* state = fe->demodulator_priv; | |
279 | u8 val; | |
280 | int i; | |
281 | ||
282 | dprintk ("%s\n", __func__); | |
283 | ||
284 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
285 | return -ETIMEDOUT; | |
286 | ||
287 | val = stv0299_readreg (state, 0x08); | |
288 | ||
289 | if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x6)) /* DiSEqC mode */ | |
290 | return -EREMOTEIO; | |
291 | ||
292 | for (i=0; i<m->msg_len; i++) { | |
293 | if (stv0299_wait_diseqc_fifo (state, 100) < 0) | |
294 | return -ETIMEDOUT; | |
295 | ||
296 | if (stv0299_writeregI (state, 0x09, m->msg[i])) | |
297 | return -EREMOTEIO; | |
298 | } | |
299 | ||
300 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
301 | return -ETIMEDOUT; | |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
306 | static int stv0299_send_diseqc_burst(struct dvb_frontend *fe, | |
307 | enum fe_sec_mini_cmd burst) | |
308 | { | |
309 | struct stv0299_state* state = fe->demodulator_priv; | |
310 | u8 val; | |
311 | ||
312 | dprintk ("%s\n", __func__); | |
313 | ||
314 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
315 | return -ETIMEDOUT; | |
316 | ||
317 | val = stv0299_readreg (state, 0x08); | |
318 | ||
319 | if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x2)) /* burst mode */ | |
320 | return -EREMOTEIO; | |
321 | ||
322 | if (stv0299_writeregI (state, 0x09, burst == SEC_MINI_A ? 0x00 : 0xff)) | |
323 | return -EREMOTEIO; | |
324 | ||
325 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
326 | return -ETIMEDOUT; | |
327 | ||
328 | if (stv0299_writeregI (state, 0x08, val)) | |
329 | return -EREMOTEIO; | |
330 | ||
331 | return 0; | |
332 | } | |
333 | ||
334 | static int stv0299_set_tone(struct dvb_frontend *fe, | |
335 | enum fe_sec_tone_mode tone) | |
336 | { | |
337 | struct stv0299_state* state = fe->demodulator_priv; | |
338 | u8 val; | |
339 | ||
340 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
341 | return -ETIMEDOUT; | |
342 | ||
343 | val = stv0299_readreg (state, 0x08); | |
344 | ||
345 | switch (tone) { | |
346 | case SEC_TONE_ON: | |
347 | return stv0299_writeregI (state, 0x08, val | 0x3); | |
348 | ||
349 | case SEC_TONE_OFF: | |
350 | return stv0299_writeregI (state, 0x08, (val & ~0x3) | 0x02); | |
351 | ||
352 | default: | |
353 | return -EINVAL; | |
354 | } | |
355 | } | |
356 | ||
357 | static int stv0299_set_voltage(struct dvb_frontend *fe, | |
358 | enum fe_sec_voltage voltage) | |
359 | { | |
360 | struct stv0299_state* state = fe->demodulator_priv; | |
361 | u8 reg0x08; | |
362 | u8 reg0x0c; | |
363 | ||
364 | dprintk("%s: %s\n", __func__, | |
365 | voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" : | |
366 | voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??"); | |
367 | ||
368 | reg0x08 = stv0299_readreg (state, 0x08); | |
369 | reg0x0c = stv0299_readreg (state, 0x0c); | |
370 | ||
371 | /* | |
372 | * H/V switching over OP0, OP1 and OP2 are LNB power enable bits | |
373 | */ | |
374 | reg0x0c &= 0x0f; | |
375 | reg0x08 = (reg0x08 & 0x3f) | (state->config->lock_output << 6); | |
376 | ||
377 | switch (voltage) { | |
378 | case SEC_VOLTAGE_13: | |
379 | if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) | |
380 | reg0x0c |= 0x10; /* OP1 off, OP0 on */ | |
381 | else | |
382 | reg0x0c |= 0x40; /* OP1 on, OP0 off */ | |
383 | break; | |
384 | case SEC_VOLTAGE_18: | |
385 | reg0x0c |= 0x50; /* OP1 on, OP0 on */ | |
386 | break; | |
387 | case SEC_VOLTAGE_OFF: | |
388 | /* LNB power off! */ | |
389 | reg0x08 = 0x00; | |
390 | reg0x0c = 0x00; | |
391 | break; | |
392 | default: | |
393 | return -EINVAL; | |
394 | } | |
395 | ||
396 | if (state->config->op0_off) | |
397 | reg0x0c &= ~0x10; | |
398 | ||
399 | stv0299_writeregI(state, 0x08, reg0x08); | |
400 | return stv0299_writeregI(state, 0x0c, reg0x0c); | |
401 | } | |
402 | ||
403 | static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long cmd) | |
404 | { | |
405 | struct stv0299_state* state = fe->demodulator_priv; | |
406 | u8 reg0x08; | |
407 | u8 reg0x0c; | |
408 | u8 lv_mask = 0x40; | |
409 | u8 last = 1; | |
410 | int i; | |
411 | ktime_t nexttime; | |
412 | ktime_t tv[10]; | |
413 | ||
414 | reg0x08 = stv0299_readreg (state, 0x08); | |
415 | reg0x0c = stv0299_readreg (state, 0x0c); | |
416 | reg0x0c &= 0x0f; | |
417 | stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6)); | |
418 | if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) | |
419 | lv_mask = 0x10; | |
420 | ||
421 | cmd = cmd << 1; | |
422 | if (debug_legacy_dish_switch) | |
423 | printk ("%s switch command: 0x%04lx\n",__func__, cmd); | |
424 | ||
425 | nexttime = ktime_get_boottime(); | |
426 | if (debug_legacy_dish_switch) | |
427 | tv[0] = nexttime; | |
428 | stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */ | |
429 | ||
430 | dvb_frontend_sleep_until(&nexttime, 32000); | |
431 | ||
432 | for (i=0; i<9; i++) { | |
433 | if (debug_legacy_dish_switch) | |
434 | tv[i+1] = ktime_get_boottime(); | |
435 | if((cmd & 0x01) != last) { | |
436 | /* set voltage to (last ? 13V : 18V) */ | |
437 | stv0299_writeregI (state, 0x0c, reg0x0c | (last ? lv_mask : 0x50)); | |
438 | last = (last) ? 0 : 1; | |
439 | } | |
440 | ||
441 | cmd = cmd >> 1; | |
442 | ||
443 | if (i != 8) | |
444 | dvb_frontend_sleep_until(&nexttime, 8000); | |
445 | } | |
446 | if (debug_legacy_dish_switch) { | |
447 | printk ("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
448 | __func__, fe->dvb->num); | |
449 | for (i = 1; i < 10; i++) | |
450 | printk("%d: %d\n", i, | |
451 | (int) ktime_us_delta(tv[i], tv[i-1])); | |
452 | } | |
453 | ||
454 | return 0; | |
455 | } | |
456 | ||
457 | static int stv0299_init (struct dvb_frontend* fe) | |
458 | { | |
459 | struct stv0299_state* state = fe->demodulator_priv; | |
460 | int i; | |
461 | u8 reg; | |
462 | u8 val; | |
463 | ||
464 | dprintk("stv0299: init chip\n"); | |
465 | ||
466 | stv0299_writeregI(state, 0x02, 0x30 | state->mcr_reg); | |
467 | msleep(50); | |
468 | ||
469 | for (i = 0; ; i += 2) { | |
470 | reg = state->config->inittab[i]; | |
471 | val = state->config->inittab[i+1]; | |
472 | if (reg == 0xff && val == 0xff) | |
473 | break; | |
474 | if (reg == 0x0c && state->config->op0_off) | |
475 | val &= ~0x10; | |
476 | if (reg == 0x2) | |
477 | state->mcr_reg = val & 0xf; | |
478 | stv0299_writeregI(state, reg, val); | |
479 | } | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
484 | static int stv0299_read_status(struct dvb_frontend *fe, | |
485 | enum fe_status *status) | |
486 | { | |
487 | struct stv0299_state* state = fe->demodulator_priv; | |
488 | ||
489 | u8 signal = 0xff - stv0299_readreg (state, 0x18); | |
490 | u8 sync = stv0299_readreg (state, 0x1b); | |
491 | ||
492 | dprintk ("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __func__, sync); | |
493 | *status = 0; | |
494 | ||
495 | if (signal > 10) | |
496 | *status |= FE_HAS_SIGNAL; | |
497 | ||
498 | if (sync & 0x80) | |
499 | *status |= FE_HAS_CARRIER; | |
500 | ||
501 | if (sync & 0x10) | |
502 | *status |= FE_HAS_VITERBI; | |
503 | ||
504 | if (sync & 0x08) | |
505 | *status |= FE_HAS_SYNC; | |
506 | ||
507 | if ((sync & 0x98) == 0x98) | |
508 | *status |= FE_HAS_LOCK; | |
509 | ||
510 | return 0; | |
511 | } | |
512 | ||
513 | static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber) | |
514 | { | |
515 | struct stv0299_state* state = fe->demodulator_priv; | |
516 | ||
517 | if (state->errmode != STATUS_BER) | |
518 | return -ENOSYS; | |
519 | ||
520 | *ber = stv0299_readreg(state, 0x1e) | (stv0299_readreg(state, 0x1d) << 8); | |
521 | ||
522 | return 0; | |
523 | } | |
524 | ||
525 | static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength) | |
526 | { | |
527 | struct stv0299_state* state = fe->demodulator_priv; | |
528 | ||
529 | s32 signal = 0xffff - ((stv0299_readreg (state, 0x18) << 8) | |
530 | | stv0299_readreg (state, 0x19)); | |
531 | ||
532 | dprintk ("%s : FE_READ_SIGNAL_STRENGTH : AGC2I: 0x%02x%02x, signal=0x%04x\n", __func__, | |
533 | stv0299_readreg (state, 0x18), | |
534 | stv0299_readreg (state, 0x19), (int) signal); | |
535 | ||
536 | signal = signal * 5 / 4; | |
537 | *strength = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal; | |
538 | ||
539 | return 0; | |
540 | } | |
541 | ||
542 | static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr) | |
543 | { | |
544 | struct stv0299_state* state = fe->demodulator_priv; | |
545 | ||
546 | s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8) | |
547 | | stv0299_readreg (state, 0x25)); | |
548 | xsnr = 3 * (xsnr - 0xa100); | |
549 | *snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr; | |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
554 | static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) | |
555 | { | |
556 | struct stv0299_state* state = fe->demodulator_priv; | |
557 | ||
558 | if (state->errmode != STATUS_UCBLOCKS) | |
559 | return -ENOSYS; | |
560 | ||
561 | state->ucblocks += stv0299_readreg(state, 0x1e); | |
562 | state->ucblocks += (stv0299_readreg(state, 0x1d) << 8); | |
563 | *ucblocks = state->ucblocks; | |
564 | ||
565 | return 0; | |
566 | } | |
567 | ||
568 | static int stv0299_set_frontend(struct dvb_frontend *fe) | |
569 | { | |
570 | struct dtv_frontend_properties *p = &fe->dtv_property_cache; | |
571 | struct stv0299_state* state = fe->demodulator_priv; | |
572 | int invval = 0; | |
573 | ||
574 | dprintk ("%s : FE_SET_FRONTEND\n", __func__); | |
575 | if (state->config->set_ts_params) | |
576 | state->config->set_ts_params(fe, 0); | |
577 | ||
578 | // set the inversion | |
579 | if (p->inversion == INVERSION_OFF) invval = 0; | |
580 | else if (p->inversion == INVERSION_ON) invval = 1; | |
581 | else { | |
582 | printk("stv0299 does not support auto-inversion\n"); | |
583 | return -EINVAL; | |
584 | } | |
585 | if (state->config->invert) invval = (~invval) & 1; | |
586 | stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval); | |
587 | ||
588 | if (fe->ops.tuner_ops.set_params) { | |
589 | fe->ops.tuner_ops.set_params(fe); | |
590 | if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); | |
591 | } | |
592 | ||
593 | stv0299_set_FEC(state, p->fec_inner); | |
594 | stv0299_set_symbolrate(fe, p->symbol_rate); | |
595 | stv0299_writeregI(state, 0x22, 0x00); | |
596 | stv0299_writeregI(state, 0x23, 0x00); | |
597 | ||
598 | state->tuner_frequency = p->frequency; | |
599 | state->fec_inner = p->fec_inner; | |
600 | state->symbol_rate = p->symbol_rate; | |
601 | ||
602 | return 0; | |
603 | } | |
604 | ||
605 | static int stv0299_get_frontend(struct dvb_frontend *fe, | |
606 | struct dtv_frontend_properties *p) | |
607 | { | |
608 | struct stv0299_state* state = fe->demodulator_priv; | |
609 | s32 derot_freq; | |
610 | int invval; | |
611 | ||
612 | derot_freq = (s32)(s16) ((stv0299_readreg (state, 0x22) << 8) | |
613 | | stv0299_readreg (state, 0x23)); | |
614 | ||
615 | derot_freq *= (state->config->mclk >> 16); | |
616 | derot_freq += 500; | |
617 | derot_freq /= 1000; | |
618 | ||
619 | p->frequency += derot_freq; | |
620 | ||
621 | invval = stv0299_readreg (state, 0x0c) & 1; | |
622 | if (state->config->invert) invval = (~invval) & 1; | |
623 | p->inversion = invval ? INVERSION_ON : INVERSION_OFF; | |
624 | ||
625 | p->fec_inner = stv0299_get_fec(state); | |
626 | p->symbol_rate = stv0299_get_symbolrate(state); | |
627 | ||
628 | return 0; | |
629 | } | |
630 | ||
631 | static int stv0299_sleep(struct dvb_frontend* fe) | |
632 | { | |
633 | struct stv0299_state* state = fe->demodulator_priv; | |
634 | ||
635 | stv0299_writeregI(state, 0x02, 0xb0 | state->mcr_reg); | |
636 | state->initialised = 0; | |
637 | ||
638 | return 0; | |
639 | } | |
640 | ||
641 | static int stv0299_i2c_gate_ctrl(struct dvb_frontend* fe, int enable) | |
642 | { | |
643 | struct stv0299_state* state = fe->demodulator_priv; | |
644 | ||
645 | if (enable) { | |
646 | stv0299_writeregI(state, 0x05, 0xb5); | |
647 | } else { | |
648 | stv0299_writeregI(state, 0x05, 0x35); | |
649 | } | |
650 | udelay(1); | |
651 | return 0; | |
652 | } | |
653 | ||
654 | static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings) | |
655 | { | |
656 | struct stv0299_state* state = fe->demodulator_priv; | |
657 | struct dtv_frontend_properties *p = &fe->dtv_property_cache; | |
658 | ||
659 | fesettings->min_delay_ms = state->config->min_delay_ms; | |
660 | if (p->symbol_rate < 10000000) { | |
661 | fesettings->step_size = p->symbol_rate / 32000; | |
662 | fesettings->max_drift = 5000; | |
663 | } else { | |
664 | fesettings->step_size = p->symbol_rate / 16000; | |
665 | fesettings->max_drift = p->symbol_rate / 2000; | |
666 | } | |
667 | return 0; | |
668 | } | |
669 | ||
670 | static void stv0299_release(struct dvb_frontend* fe) | |
671 | { | |
672 | struct stv0299_state* state = fe->demodulator_priv; | |
673 | kfree(state); | |
674 | } | |
675 | ||
676 | static const struct dvb_frontend_ops stv0299_ops; | |
677 | ||
678 | struct dvb_frontend* stv0299_attach(const struct stv0299_config* config, | |
679 | struct i2c_adapter* i2c) | |
680 | { | |
681 | struct stv0299_state* state = NULL; | |
682 | int id; | |
683 | ||
684 | /* allocate memory for the internal state */ | |
685 | state = kzalloc(sizeof(struct stv0299_state), GFP_KERNEL); | |
686 | if (state == NULL) goto error; | |
687 | ||
688 | /* setup the state */ | |
689 | state->config = config; | |
690 | state->i2c = i2c; | |
691 | state->initialised = 0; | |
692 | state->tuner_frequency = 0; | |
693 | state->symbol_rate = 0; | |
694 | state->fec_inner = 0; | |
695 | state->errmode = STATUS_BER; | |
696 | ||
697 | /* check if the demod is there */ | |
698 | stv0299_writeregI(state, 0x02, 0x30); /* standby off */ | |
699 | msleep(200); | |
700 | id = stv0299_readreg(state, 0x00); | |
701 | ||
702 | /* register 0x00 contains 0xa1 for STV0299 and STV0299B */ | |
703 | /* register 0x00 might contain 0x80 when returning from standby */ | |
704 | if (id != 0xa1 && id != 0x80) goto error; | |
705 | ||
706 | /* create dvb_frontend */ | |
707 | memcpy(&state->frontend.ops, &stv0299_ops, sizeof(struct dvb_frontend_ops)); | |
708 | state->frontend.demodulator_priv = state; | |
709 | return &state->frontend; | |
710 | ||
711 | error: | |
712 | kfree(state); | |
713 | return NULL; | |
714 | } | |
715 | ||
716 | static const struct dvb_frontend_ops stv0299_ops = { | |
717 | .delsys = { SYS_DVBS }, | |
718 | .info = { | |
719 | .name = "ST STV0299 DVB-S", | |
720 | .frequency_min = 950000, | |
721 | .frequency_max = 2150000, | |
722 | .frequency_stepsize = 125, /* kHz for QPSK frontends */ | |
723 | .frequency_tolerance = 0, | |
724 | .symbol_rate_min = 1000000, | |
725 | .symbol_rate_max = 45000000, | |
726 | .symbol_rate_tolerance = 500, /* ppm */ | |
727 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
728 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | | |
729 | FE_CAN_QPSK | | |
730 | FE_CAN_FEC_AUTO | |
731 | }, | |
732 | ||
733 | .release = stv0299_release, | |
734 | ||
735 | .init = stv0299_init, | |
736 | .sleep = stv0299_sleep, | |
737 | .write = stv0299_write, | |
738 | .i2c_gate_ctrl = stv0299_i2c_gate_ctrl, | |
739 | ||
740 | .set_frontend = stv0299_set_frontend, | |
741 | .get_frontend = stv0299_get_frontend, | |
742 | .get_tune_settings = stv0299_get_tune_settings, | |
743 | ||
744 | .read_status = stv0299_read_status, | |
745 | .read_ber = stv0299_read_ber, | |
746 | .read_signal_strength = stv0299_read_signal_strength, | |
747 | .read_snr = stv0299_read_snr, | |
748 | .read_ucblocks = stv0299_read_ucblocks, | |
749 | ||
750 | .diseqc_send_master_cmd = stv0299_send_diseqc_msg, | |
751 | .diseqc_send_burst = stv0299_send_diseqc_burst, | |
752 | .set_tone = stv0299_set_tone, | |
753 | .set_voltage = stv0299_set_voltage, | |
754 | .dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd, | |
755 | }; | |
756 | ||
757 | module_param(debug_legacy_dish_switch, int, 0444); | |
758 | MODULE_PARM_DESC(debug_legacy_dish_switch, "Enable timing analysis for Dish Network legacy switches"); | |
759 | ||
760 | module_param(debug, int, 0644); | |
761 | MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); | |
762 | ||
763 | MODULE_DESCRIPTION("ST STV0299 DVB Demodulator driver"); | |
764 | MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Peter Schildmann, Felix Domke, Andreas Oberritter, Andrew de Quincey, Kenneth Aafly"); | |
765 | MODULE_LICENSE("GPL"); | |
766 | ||
767 | EXPORT_SYMBOL(stv0299_attach); |