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1da177e4 LT |
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 = ®1, .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 | Content-type: text/html ]>