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Commit | Line | Data |
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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> | |
4e57b681 | 51 | #include <linux/jiffies.h> |
1da177e4 LT |
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; | |
1da177e4 LT |
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; | |
37650221 | 66 | int errmode; |
1da177e4 LT |
67 | }; |
68 | ||
37650221 AQ |
69 | #define STATUS_BER 0 |
70 | #define STATUS_UCBLOCKS 1 | |
71 | ||
1da177e4 | 72 | static int debug; |
591ad98d | 73 | static int debug_legacy_dish_switch; |
1da177e4 LT |
74 | #define dprintk(args...) \ |
75 | do { \ | |
76 | if (debug) printk(KERN_DEBUG "stv0299: " args); \ | |
77 | } while (0) | |
78 | ||
79 | ||
80 | static int stv0299_writeregI (struct stv0299_state* state, u8 reg, u8 data) | |
81 | { | |
82 | int ret; | |
83 | u8 buf [] = { reg, data }; | |
84 | struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 }; | |
85 | ||
86 | ret = i2c_transfer (state->i2c, &msg, 1); | |
87 | ||
88 | if (ret != 1) | |
89 | dprintk("%s: writereg error (reg == 0x%02x, val == 0x%02x, " | |
90 | "ret == %i)\n", __FUNCTION__, reg, data, ret); | |
91 | ||
92 | return (ret != 1) ? -EREMOTEIO : 0; | |
93 | } | |
94 | ||
95 | int stv0299_writereg (struct dvb_frontend* fe, u8 reg, u8 data) | |
96 | { | |
9101e622 | 97 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
98 | |
99 | return stv0299_writeregI(state, reg, data); | |
100 | } | |
101 | ||
102 | static u8 stv0299_readreg (struct stv0299_state* state, u8 reg) | |
103 | { | |
104 | int ret; | |
105 | u8 b0 [] = { reg }; | |
106 | u8 b1 [] = { 0 }; | |
107 | struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 }, | |
108 | { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } }; | |
109 | ||
110 | ret = i2c_transfer (state->i2c, msg, 2); | |
111 | ||
112 | if (ret != 2) | |
113 | dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", | |
114 | __FUNCTION__, reg, ret); | |
115 | ||
116 | return b1[0]; | |
117 | } | |
118 | ||
119 | static int stv0299_readregs (struct stv0299_state* state, u8 reg1, u8 *b, u8 len) | |
120 | { | |
121 | int ret; | |
122 | struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = ®1, .len = 1 }, | |
123 | { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } }; | |
124 | ||
125 | ret = i2c_transfer (state->i2c, msg, 2); | |
126 | ||
127 | if (ret != 2) | |
128 | dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret); | |
129 | ||
130 | return ret == 2 ? 0 : ret; | |
131 | } | |
132 | ||
133 | static int stv0299_set_FEC (struct stv0299_state* state, fe_code_rate_t fec) | |
134 | { | |
135 | dprintk ("%s\n", __FUNCTION__); | |
136 | ||
137 | switch (fec) { | |
138 | case FEC_AUTO: | |
139 | { | |
140 | return stv0299_writeregI (state, 0x31, 0x1f); | |
141 | } | |
142 | case FEC_1_2: | |
143 | { | |
144 | return stv0299_writeregI (state, 0x31, 0x01); | |
145 | } | |
146 | case FEC_2_3: | |
147 | { | |
148 | return stv0299_writeregI (state, 0x31, 0x02); | |
149 | } | |
150 | case FEC_3_4: | |
151 | { | |
152 | return stv0299_writeregI (state, 0x31, 0x04); | |
153 | } | |
154 | case FEC_5_6: | |
155 | { | |
156 | return stv0299_writeregI (state, 0x31, 0x08); | |
157 | } | |
158 | case FEC_7_8: | |
159 | { | |
160 | return stv0299_writeregI (state, 0x31, 0x10); | |
161 | } | |
162 | default: | |
163 | { | |
164 | return -EINVAL; | |
165 | } | |
166 | } | |
167 | } | |
168 | ||
169 | static fe_code_rate_t stv0299_get_fec (struct stv0299_state* state) | |
170 | { | |
171 | static fe_code_rate_t fec_tab [] = { FEC_2_3, FEC_3_4, FEC_5_6, | |
172 | FEC_7_8, FEC_1_2 }; | |
173 | u8 index; | |
174 | ||
175 | dprintk ("%s\n", __FUNCTION__); | |
176 | ||
177 | index = stv0299_readreg (state, 0x1b); | |
178 | index &= 0x7; | |
179 | ||
180 | if (index > 4) | |
181 | return FEC_AUTO; | |
182 | ||
183 | return fec_tab [index]; | |
184 | } | |
185 | ||
186 | static int stv0299_wait_diseqc_fifo (struct stv0299_state* state, int timeout) | |
187 | { | |
188 | unsigned long start = jiffies; | |
189 | ||
190 | dprintk ("%s\n", __FUNCTION__); | |
191 | ||
192 | while (stv0299_readreg(state, 0x0a) & 1) { | |
193 | if (jiffies - start > timeout) { | |
194 | dprintk ("%s: timeout!!\n", __FUNCTION__); | |
195 | return -ETIMEDOUT; | |
196 | } | |
197 | msleep(10); | |
198 | }; | |
199 | ||
200 | return 0; | |
201 | } | |
202 | ||
203 | static int stv0299_wait_diseqc_idle (struct stv0299_state* state, int timeout) | |
204 | { | |
205 | unsigned long start = jiffies; | |
206 | ||
207 | dprintk ("%s\n", __FUNCTION__); | |
208 | ||
209 | while ((stv0299_readreg(state, 0x0a) & 3) != 2 ) { | |
210 | if (jiffies - start > timeout) { | |
211 | dprintk ("%s: timeout!!\n", __FUNCTION__); | |
212 | return -ETIMEDOUT; | |
213 | } | |
214 | msleep(10); | |
215 | }; | |
216 | ||
217 | return 0; | |
218 | } | |
219 | ||
220 | static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate) | |
221 | { | |
9101e622 | 222 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
223 | u64 big = srate; |
224 | u32 ratio; | |
225 | ||
226 | // check rate is within limits | |
227 | if ((srate < 1000000) || (srate > 45000000)) return -EINVAL; | |
228 | ||
229 | // calculate value to program | |
230 | big = big << 20; | |
231 | big += (state->config->mclk-1); // round correctly | |
232 | do_div(big, state->config->mclk); | |
233 | ratio = big << 4; | |
234 | ||
235 | return state->config->set_symbol_rate(fe, srate, ratio); | |
236 | } | |
237 | ||
238 | static int stv0299_get_symbolrate (struct stv0299_state* state) | |
239 | { | |
240 | u32 Mclk = state->config->mclk / 4096L; | |
241 | u32 srate; | |
242 | s32 offset; | |
243 | u8 sfr[3]; | |
244 | s8 rtf; | |
245 | ||
246 | dprintk ("%s\n", __FUNCTION__); | |
247 | ||
248 | stv0299_readregs (state, 0x1f, sfr, 3); | |
249 | stv0299_readregs (state, 0x1a, &rtf, 1); | |
250 | ||
251 | srate = (sfr[0] << 8) | sfr[1]; | |
252 | srate *= Mclk; | |
253 | srate /= 16; | |
254 | srate += (sfr[2] >> 4) * Mclk / 256; | |
255 | offset = (s32) rtf * (srate / 4096L); | |
256 | offset /= 128; | |
257 | ||
258 | dprintk ("%s : srate = %i\n", __FUNCTION__, srate); | |
259 | dprintk ("%s : ofset = %i\n", __FUNCTION__, offset); | |
260 | ||
261 | srate += offset; | |
262 | ||
263 | srate += 1000; | |
264 | srate /= 2000; | |
265 | srate *= 2000; | |
266 | ||
267 | return srate; | |
268 | } | |
269 | ||
270 | static int stv0299_send_diseqc_msg (struct dvb_frontend* fe, | |
271 | struct dvb_diseqc_master_cmd *m) | |
272 | { | |
9101e622 | 273 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
274 | u8 val; |
275 | int i; | |
276 | ||
277 | dprintk ("%s\n", __FUNCTION__); | |
278 | ||
279 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
280 | return -ETIMEDOUT; | |
281 | ||
282 | val = stv0299_readreg (state, 0x08); | |
283 | ||
284 | if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x6)) /* DiSEqC mode */ | |
285 | return -EREMOTEIO; | |
286 | ||
287 | for (i=0; i<m->msg_len; i++) { | |
288 | if (stv0299_wait_diseqc_fifo (state, 100) < 0) | |
289 | return -ETIMEDOUT; | |
290 | ||
291 | if (stv0299_writeregI (state, 0x09, m->msg[i])) | |
292 | return -EREMOTEIO; | |
293 | } | |
294 | ||
295 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
296 | return -ETIMEDOUT; | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
301 | static int stv0299_send_diseqc_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t burst) | |
302 | { | |
9101e622 | 303 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
304 | u8 val; |
305 | ||
306 | dprintk ("%s\n", __FUNCTION__); | |
307 | ||
308 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
309 | return -ETIMEDOUT; | |
310 | ||
311 | val = stv0299_readreg (state, 0x08); | |
312 | ||
313 | if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x2)) /* burst mode */ | |
314 | return -EREMOTEIO; | |
315 | ||
316 | if (stv0299_writeregI (state, 0x09, burst == SEC_MINI_A ? 0x00 : 0xff)) | |
317 | return -EREMOTEIO; | |
318 | ||
319 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
320 | return -ETIMEDOUT; | |
321 | ||
322 | if (stv0299_writeregI (state, 0x08, val)) | |
323 | return -EREMOTEIO; | |
324 | ||
325 | return 0; | |
326 | } | |
327 | ||
328 | static int stv0299_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone) | |
329 | { | |
9101e622 | 330 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
331 | u8 val; |
332 | ||
333 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
334 | return -ETIMEDOUT; | |
335 | ||
336 | val = stv0299_readreg (state, 0x08); | |
337 | ||
338 | switch (tone) { | |
339 | case SEC_TONE_ON: | |
340 | return stv0299_writeregI (state, 0x08, val | 0x3); | |
341 | ||
342 | case SEC_TONE_OFF: | |
343 | return stv0299_writeregI (state, 0x08, (val & ~0x3) | 0x02); | |
344 | ||
345 | default: | |
346 | return -EINVAL; | |
347 | } | |
348 | } | |
349 | ||
350 | static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage) | |
351 | { | |
9101e622 | 352 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
353 | u8 reg0x08; |
354 | u8 reg0x0c; | |
355 | ||
356 | dprintk("%s: %s\n", __FUNCTION__, | |
357 | voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" : | |
358 | voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??"); | |
359 | ||
360 | reg0x08 = stv0299_readreg (state, 0x08); | |
361 | reg0x0c = stv0299_readreg (state, 0x0c); | |
362 | ||
363 | /** | |
364 | * H/V switching over OP0, OP1 and OP2 are LNB power enable bits | |
365 | */ | |
366 | reg0x0c &= 0x0f; | |
367 | ||
368 | if (voltage == SEC_VOLTAGE_OFF) { | |
369 | stv0299_writeregI (state, 0x0c, 0x00); /* LNB power off! */ | |
370 | return stv0299_writeregI (state, 0x08, 0x00); /* LNB power off! */ | |
371 | } | |
372 | ||
373 | stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6)); | |
374 | ||
375 | switch (voltage) { | |
376 | case SEC_VOLTAGE_13: | |
377 | if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) reg0x0c |= 0x10; | |
378 | else reg0x0c |= 0x40; | |
379 | ||
380 | return stv0299_writeregI(state, 0x0c, reg0x0c); | |
381 | ||
382 | case SEC_VOLTAGE_18: | |
383 | return stv0299_writeregI(state, 0x0c, reg0x0c | 0x50); | |
384 | default: | |
385 | return -EINVAL; | |
386 | }; | |
387 | } | |
388 | ||
400b7083 | 389 | static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long cmd) |
591ad98d JS |
390 | { |
391 | struct stv0299_state* state = fe->demodulator_priv; | |
392 | u8 reg0x08; | |
393 | u8 reg0x0c; | |
394 | u8 lv_mask = 0x40; | |
1da177e4 LT |
395 | u8 last = 1; |
396 | int i; | |
591ad98d JS |
397 | struct timeval nexttime; |
398 | struct timeval tv[10]; | |
1da177e4 | 399 | |
591ad98d JS |
400 | reg0x08 = stv0299_readreg (state, 0x08); |
401 | reg0x0c = stv0299_readreg (state, 0x0c); | |
402 | reg0x0c &= 0x0f; | |
403 | stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6)); | |
404 | if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) | |
405 | lv_mask = 0x10; | |
1da177e4 LT |
406 | |
407 | cmd = cmd << 1; | |
591ad98d | 408 | if (debug_legacy_dish_switch) |
400b7083 | 409 | printk ("%s switch command: 0x%04lx\n",__FUNCTION__, cmd); |
591ad98d JS |
410 | |
411 | do_gettimeofday (&nexttime); | |
412 | if (debug_legacy_dish_switch) | |
413 | memcpy (&tv[0], &nexttime, sizeof (struct timeval)); | |
414 | stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */ | |
1da177e4 | 415 | |
83b75b04 | 416 | dvb_frontend_sleep_until(&nexttime, 32000); |
1da177e4 LT |
417 | |
418 | for (i=0; i<9; i++) { | |
591ad98d JS |
419 | if (debug_legacy_dish_switch) |
420 | do_gettimeofday (&tv[i+1]); | |
1da177e4 | 421 | if((cmd & 0x01) != last) { |
591ad98d JS |
422 | /* set voltage to (last ? 13V : 18V) */ |
423 | stv0299_writeregI (state, 0x0c, reg0x0c | (last ? lv_mask : 0x50)); | |
1da177e4 LT |
424 | last = (last) ? 0 : 1; |
425 | } | |
426 | ||
427 | cmd = cmd >> 1; | |
428 | ||
429 | if (i != 8) | |
83b75b04 | 430 | dvb_frontend_sleep_until(&nexttime, 8000); |
591ad98d JS |
431 | } |
432 | if (debug_legacy_dish_switch) { | |
433 | printk ("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
434 | __FUNCTION__, fe->dvb->num); | |
83b75b04 N |
435 | for (i = 1; i < 10; i++) |
436 | printk ("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
1da177e4 LT |
437 | } |
438 | ||
439 | return 0; | |
440 | } | |
441 | ||
442 | static int stv0299_init (struct dvb_frontend* fe) | |
443 | { | |
9101e622 | 444 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
445 | int i; |
446 | ||
447 | dprintk("stv0299: init chip\n"); | |
448 | ||
449 | for (i=0; !(state->config->inittab[i] == 0xff && state->config->inittab[i+1] == 0xff); i+=2) | |
450 | stv0299_writeregI(state, state->config->inittab[i], state->config->inittab[i+1]); | |
451 | ||
1da177e4 LT |
452 | return 0; |
453 | } | |
454 | ||
455 | static int stv0299_read_status(struct dvb_frontend* fe, fe_status_t* status) | |
456 | { | |
9101e622 | 457 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
458 | |
459 | u8 signal = 0xff - stv0299_readreg (state, 0x18); | |
460 | u8 sync = stv0299_readreg (state, 0x1b); | |
461 | ||
462 | dprintk ("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __FUNCTION__, sync); | |
463 | *status = 0; | |
464 | ||
465 | if (signal > 10) | |
466 | *status |= FE_HAS_SIGNAL; | |
467 | ||
468 | if (sync & 0x80) | |
469 | *status |= FE_HAS_CARRIER; | |
470 | ||
471 | if (sync & 0x10) | |
472 | *status |= FE_HAS_VITERBI; | |
473 | ||
474 | if (sync & 0x08) | |
475 | *status |= FE_HAS_SYNC; | |
476 | ||
477 | if ((sync & 0x98) == 0x98) | |
478 | *status |= FE_HAS_LOCK; | |
479 | ||
480 | return 0; | |
481 | } | |
482 | ||
483 | static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber) | |
484 | { | |
9101e622 | 485 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 | 486 | |
37650221 | 487 | if (state->errmode != STATUS_BER) return 0; |
1da177e4 LT |
488 | *ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); |
489 | ||
490 | return 0; | |
491 | } | |
492 | ||
493 | static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength) | |
494 | { | |
9101e622 | 495 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
496 | |
497 | s32 signal = 0xffff - ((stv0299_readreg (state, 0x18) << 8) | |
498 | | stv0299_readreg (state, 0x19)); | |
499 | ||
500 | dprintk ("%s : FE_READ_SIGNAL_STRENGTH : AGC2I: 0x%02x%02x, signal=0x%04x\n", __FUNCTION__, | |
501 | stv0299_readreg (state, 0x18), | |
502 | stv0299_readreg (state, 0x19), (int) signal); | |
503 | ||
504 | signal = signal * 5 / 4; | |
505 | *strength = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal; | |
506 | ||
507 | return 0; | |
508 | } | |
509 | ||
510 | static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr) | |
511 | { | |
9101e622 | 512 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
513 | |
514 | s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8) | |
515 | | stv0299_readreg (state, 0x25)); | |
516 | xsnr = 3 * (xsnr - 0xa100); | |
517 | *snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr; | |
518 | ||
519 | return 0; | |
520 | } | |
521 | ||
522 | static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) | |
523 | { | |
9101e622 | 524 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 | 525 | |
37650221 AQ |
526 | if (state->errmode != STATUS_UCBLOCKS) *ucblocks = 0; |
527 | else *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); | |
1da177e4 LT |
528 | |
529 | return 0; | |
530 | } | |
531 | ||
532 | static int stv0299_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p) | |
533 | { | |
9101e622 | 534 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
535 | int invval = 0; |
536 | ||
537 | dprintk ("%s : FE_SET_FRONTEND\n", __FUNCTION__); | |
538 | ||
539 | // set the inversion | |
540 | if (p->inversion == INVERSION_OFF) invval = 0; | |
541 | else if (p->inversion == INVERSION_ON) invval = 1; | |
542 | else { | |
543 | printk("stv0299 does not support auto-inversion\n"); | |
544 | return -EINVAL; | |
545 | } | |
546 | if (state->config->invert) invval = (~invval) & 1; | |
547 | stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval); | |
548 | ||
dea74869 PB |
549 | if (fe->ops.tuner_ops.set_params) { |
550 | fe->ops.tuner_ops.set_params(fe, p); | |
551 | if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); | |
53a8ee3e | 552 | } |
3528cc4e AQ |
553 | |
554 | stv0299_set_FEC (state, p->u.qpsk.fec_inner); | |
555 | stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate); | |
556 | stv0299_writeregI(state, 0x22, 0x00); | |
557 | stv0299_writeregI(state, 0x23, 0x00); | |
1da177e4 LT |
558 | |
559 | state->tuner_frequency = p->frequency; | |
560 | state->fec_inner = p->u.qpsk.fec_inner; | |
561 | state->symbol_rate = p->u.qpsk.symbol_rate; | |
562 | ||
563 | return 0; | |
564 | } | |
565 | ||
566 | static int stv0299_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p) | |
567 | { | |
9101e622 | 568 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
569 | s32 derot_freq; |
570 | int invval; | |
571 | ||
572 | derot_freq = (s32)(s16) ((stv0299_readreg (state, 0x22) << 8) | |
573 | | stv0299_readreg (state, 0x23)); | |
574 | ||
575 | derot_freq *= (state->config->mclk >> 16); | |
576 | derot_freq += 500; | |
577 | derot_freq /= 1000; | |
578 | ||
579 | p->frequency += derot_freq; | |
580 | ||
581 | invval = stv0299_readreg (state, 0x0c) & 1; | |
582 | if (state->config->invert) invval = (~invval) & 1; | |
583 | p->inversion = invval ? INVERSION_ON : INVERSION_OFF; | |
584 | ||
585 | p->u.qpsk.fec_inner = stv0299_get_fec (state); | |
586 | p->u.qpsk.symbol_rate = stv0299_get_symbolrate (state); | |
587 | ||
588 | return 0; | |
589 | } | |
590 | ||
591 | static int stv0299_sleep(struct dvb_frontend* fe) | |
592 | { | |
9101e622 | 593 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
594 | |
595 | stv0299_writeregI(state, 0x02, 0x80); | |
596 | state->initialised = 0; | |
597 | ||
598 | return 0; | |
599 | } | |
600 | ||
53a8ee3e AQ |
601 | static int stv0299_i2c_gate_ctrl(struct dvb_frontend* fe, int enable) |
602 | { | |
603 | struct stv0299_state* state = fe->demodulator_priv; | |
604 | ||
605 | if (enable) { | |
a9686e0d | 606 | stv0299_writeregI(state, 0x05, 0xb5); |
53a8ee3e | 607 | } else { |
a9686e0d | 608 | stv0299_writeregI(state, 0x05, 0x35); |
53a8ee3e | 609 | } |
a9686e0d AQ |
610 | udelay(1); |
611 | return 0; | |
53a8ee3e AQ |
612 | } |
613 | ||
1da177e4 LT |
614 | static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings) |
615 | { | |
9101e622 | 616 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
617 | |
618 | fesettings->min_delay_ms = state->config->min_delay_ms; | |
619 | if (fesettings->parameters.u.qpsk.symbol_rate < 10000000) { | |
620 | fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 32000; | |
621 | fesettings->max_drift = 5000; | |
622 | } else { | |
623 | fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 16000; | |
624 | fesettings->max_drift = fesettings->parameters.u.qpsk.symbol_rate / 2000; | |
625 | } | |
626 | return 0; | |
627 | } | |
628 | ||
629 | static void stv0299_release(struct dvb_frontend* fe) | |
630 | { | |
b8742700 | 631 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
632 | kfree(state); |
633 | } | |
634 | ||
635 | static struct dvb_frontend_ops stv0299_ops; | |
636 | ||
637 | struct dvb_frontend* stv0299_attach(const struct stv0299_config* config, | |
638 | struct i2c_adapter* i2c) | |
639 | { | |
640 | struct stv0299_state* state = NULL; | |
641 | int id; | |
642 | ||
643 | /* allocate memory for the internal state */ | |
b8742700 | 644 | state = kmalloc(sizeof(struct stv0299_state), GFP_KERNEL); |
1da177e4 LT |
645 | if (state == NULL) goto error; |
646 | ||
647 | /* setup the state */ | |
648 | state->config = config; | |
649 | state->i2c = i2c; | |
1da177e4 LT |
650 | state->initialised = 0; |
651 | state->tuner_frequency = 0; | |
652 | state->symbol_rate = 0; | |
653 | state->fec_inner = 0; | |
37650221 | 654 | state->errmode = STATUS_BER; |
1da177e4 LT |
655 | |
656 | /* check if the demod is there */ | |
657 | stv0299_writeregI(state, 0x02, 0x34); /* standby off */ | |
658 | msleep(200); | |
659 | id = stv0299_readreg(state, 0x00); | |
660 | ||
661 | /* register 0x00 contains 0xa1 for STV0299 and STV0299B */ | |
662 | /* register 0x00 might contain 0x80 when returning from standby */ | |
663 | if (id != 0xa1 && id != 0x80) goto error; | |
664 | ||
665 | /* create dvb_frontend */ | |
dea74869 | 666 | memcpy(&state->frontend.ops, &stv0299_ops, sizeof(struct dvb_frontend_ops)); |
9101e622 | 667 | state->frontend.demodulator_priv = state; |
1da177e4 LT |
668 | return &state->frontend; |
669 | ||
670 | error: | |
671 | kfree(state); | |
672 | return NULL; | |
673 | } | |
674 | ||
675 | static struct dvb_frontend_ops stv0299_ops = { | |
676 | ||
677 | .info = { | |
678 | .name = "ST STV0299 DVB-S", | |
679 | .type = FE_QPSK, | |
680 | .frequency_min = 950000, | |
681 | .frequency_max = 2150000, | |
682 | .frequency_stepsize = 125, /* kHz for QPSK frontends */ | |
683 | .frequency_tolerance = 0, | |
684 | .symbol_rate_min = 1000000, | |
685 | .symbol_rate_max = 45000000, | |
686 | .symbol_rate_tolerance = 500, /* ppm */ | |
687 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
688 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | | |
689 | FE_CAN_QPSK | | |
690 | FE_CAN_FEC_AUTO | |
691 | }, | |
692 | ||
693 | .release = stv0299_release, | |
694 | ||
695 | .init = stv0299_init, | |
696 | .sleep = stv0299_sleep, | |
53a8ee3e | 697 | .i2c_gate_ctrl = stv0299_i2c_gate_ctrl, |
1da177e4 LT |
698 | |
699 | .set_frontend = stv0299_set_frontend, | |
700 | .get_frontend = stv0299_get_frontend, | |
701 | .get_tune_settings = stv0299_get_tune_settings, | |
702 | ||
703 | .read_status = stv0299_read_status, | |
704 | .read_ber = stv0299_read_ber, | |
705 | .read_signal_strength = stv0299_read_signal_strength, | |
706 | .read_snr = stv0299_read_snr, | |
707 | .read_ucblocks = stv0299_read_ucblocks, | |
708 | ||
709 | .diseqc_send_master_cmd = stv0299_send_diseqc_msg, | |
710 | .diseqc_send_burst = stv0299_send_diseqc_burst, | |
711 | .set_tone = stv0299_set_tone, | |
712 | .set_voltage = stv0299_set_voltage, | |
713 | .dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd, | |
714 | }; | |
715 | ||
591ad98d JS |
716 | module_param(debug_legacy_dish_switch, int, 0444); |
717 | MODULE_PARM_DESC(debug_legacy_dish_switch, "Enable timing analysis for Dish Network legacy switches"); | |
718 | ||
1da177e4 LT |
719 | module_param(debug, int, 0644); |
720 | MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); | |
721 | ||
722 | MODULE_DESCRIPTION("ST STV0299 DVB Demodulator driver"); | |
723 | MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Peter Schildmann, Felix Domke, " | |
53a8ee3e | 724 | "Andreas Oberritter, Andrew de Quincey, Kenneth Aafly"); |
1da177e4 LT |
725 | MODULE_LICENSE("GPL"); |
726 | ||
727 | EXPORT_SYMBOL(stv0299_writereg); | |
728 | EXPORT_SYMBOL(stv0299_attach); |