Commit | Line | Data |
---|---|---|
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; | |
1da177e4 LT |
66 | }; |
67 | ||
1da177e4 | 68 | static int debug; |
591ad98d | 69 | static int debug_legacy_dish_switch; |
1da177e4 LT |
70 | #define dprintk(args...) \ |
71 | do { \ | |
72 | if (debug) printk(KERN_DEBUG "stv0299: " args); \ | |
73 | } while (0) | |
74 | ||
75 | ||
76 | static int stv0299_writeregI (struct stv0299_state* state, u8 reg, u8 data) | |
77 | { | |
78 | int ret; | |
79 | u8 buf [] = { reg, data }; | |
80 | struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 }; | |
81 | ||
82 | ret = i2c_transfer (state->i2c, &msg, 1); | |
83 | ||
84 | if (ret != 1) | |
85 | dprintk("%s: writereg error (reg == 0x%02x, val == 0x%02x, " | |
86 | "ret == %i)\n", __FUNCTION__, reg, data, ret); | |
87 | ||
88 | return (ret != 1) ? -EREMOTEIO : 0; | |
89 | } | |
90 | ||
91 | int stv0299_writereg (struct dvb_frontend* fe, u8 reg, u8 data) | |
92 | { | |
b8742700 | 93 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
94 | |
95 | return stv0299_writeregI(state, reg, data); | |
96 | } | |
97 | ||
98 | static u8 stv0299_readreg (struct stv0299_state* state, u8 reg) | |
99 | { | |
100 | int ret; | |
101 | u8 b0 [] = { reg }; | |
102 | u8 b1 [] = { 0 }; | |
103 | struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 }, | |
104 | { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } }; | |
105 | ||
106 | ret = i2c_transfer (state->i2c, msg, 2); | |
107 | ||
108 | if (ret != 2) | |
109 | dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", | |
110 | __FUNCTION__, reg, ret); | |
111 | ||
112 | return b1[0]; | |
113 | } | |
114 | ||
115 | static int stv0299_readregs (struct stv0299_state* state, u8 reg1, u8 *b, u8 len) | |
116 | { | |
117 | int ret; | |
118 | struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = ®1, .len = 1 }, | |
119 | { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } }; | |
120 | ||
121 | ret = i2c_transfer (state->i2c, msg, 2); | |
122 | ||
123 | if (ret != 2) | |
124 | dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret); | |
125 | ||
126 | return ret == 2 ? 0 : ret; | |
127 | } | |
128 | ||
129 | static int stv0299_set_FEC (struct stv0299_state* state, fe_code_rate_t fec) | |
130 | { | |
131 | dprintk ("%s\n", __FUNCTION__); | |
132 | ||
133 | switch (fec) { | |
134 | case FEC_AUTO: | |
135 | { | |
136 | return stv0299_writeregI (state, 0x31, 0x1f); | |
137 | } | |
138 | case FEC_1_2: | |
139 | { | |
140 | return stv0299_writeregI (state, 0x31, 0x01); | |
141 | } | |
142 | case FEC_2_3: | |
143 | { | |
144 | return stv0299_writeregI (state, 0x31, 0x02); | |
145 | } | |
146 | case FEC_3_4: | |
147 | { | |
148 | return stv0299_writeregI (state, 0x31, 0x04); | |
149 | } | |
150 | case FEC_5_6: | |
151 | { | |
152 | return stv0299_writeregI (state, 0x31, 0x08); | |
153 | } | |
154 | case FEC_7_8: | |
155 | { | |
156 | return stv0299_writeregI (state, 0x31, 0x10); | |
157 | } | |
158 | default: | |
159 | { | |
160 | return -EINVAL; | |
161 | } | |
162 | } | |
163 | } | |
164 | ||
165 | static fe_code_rate_t stv0299_get_fec (struct stv0299_state* state) | |
166 | { | |
167 | static fe_code_rate_t fec_tab [] = { FEC_2_3, FEC_3_4, FEC_5_6, | |
168 | FEC_7_8, FEC_1_2 }; | |
169 | u8 index; | |
170 | ||
171 | dprintk ("%s\n", __FUNCTION__); | |
172 | ||
173 | index = stv0299_readreg (state, 0x1b); | |
174 | index &= 0x7; | |
175 | ||
176 | if (index > 4) | |
177 | return FEC_AUTO; | |
178 | ||
179 | return fec_tab [index]; | |
180 | } | |
181 | ||
182 | static int stv0299_wait_diseqc_fifo (struct stv0299_state* state, int timeout) | |
183 | { | |
184 | unsigned long start = jiffies; | |
185 | ||
186 | dprintk ("%s\n", __FUNCTION__); | |
187 | ||
188 | while (stv0299_readreg(state, 0x0a) & 1) { | |
189 | if (jiffies - start > timeout) { | |
190 | dprintk ("%s: timeout!!\n", __FUNCTION__); | |
191 | return -ETIMEDOUT; | |
192 | } | |
193 | msleep(10); | |
194 | }; | |
195 | ||
196 | return 0; | |
197 | } | |
198 | ||
199 | static int stv0299_wait_diseqc_idle (struct stv0299_state* state, int timeout) | |
200 | { | |
201 | unsigned long start = jiffies; | |
202 | ||
203 | dprintk ("%s\n", __FUNCTION__); | |
204 | ||
205 | while ((stv0299_readreg(state, 0x0a) & 3) != 2 ) { | |
206 | if (jiffies - start > timeout) { | |
207 | dprintk ("%s: timeout!!\n", __FUNCTION__); | |
208 | return -ETIMEDOUT; | |
209 | } | |
210 | msleep(10); | |
211 | }; | |
212 | ||
213 | return 0; | |
214 | } | |
215 | ||
216 | static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate) | |
217 | { | |
b8742700 | 218 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
219 | u64 big = srate; |
220 | u32 ratio; | |
221 | ||
222 | // check rate is within limits | |
223 | if ((srate < 1000000) || (srate > 45000000)) return -EINVAL; | |
224 | ||
225 | // calculate value to program | |
226 | big = big << 20; | |
227 | big += (state->config->mclk-1); // round correctly | |
228 | do_div(big, state->config->mclk); | |
229 | ratio = big << 4; | |
230 | ||
231 | return state->config->set_symbol_rate(fe, srate, ratio); | |
232 | } | |
233 | ||
234 | static int stv0299_get_symbolrate (struct stv0299_state* state) | |
235 | { | |
236 | u32 Mclk = state->config->mclk / 4096L; | |
237 | u32 srate; | |
238 | s32 offset; | |
239 | u8 sfr[3]; | |
240 | s8 rtf; | |
241 | ||
242 | dprintk ("%s\n", __FUNCTION__); | |
243 | ||
244 | stv0299_readregs (state, 0x1f, sfr, 3); | |
245 | stv0299_readregs (state, 0x1a, &rtf, 1); | |
246 | ||
247 | srate = (sfr[0] << 8) | sfr[1]; | |
248 | srate *= Mclk; | |
249 | srate /= 16; | |
250 | srate += (sfr[2] >> 4) * Mclk / 256; | |
251 | offset = (s32) rtf * (srate / 4096L); | |
252 | offset /= 128; | |
253 | ||
254 | dprintk ("%s : srate = %i\n", __FUNCTION__, srate); | |
255 | dprintk ("%s : ofset = %i\n", __FUNCTION__, offset); | |
256 | ||
257 | srate += offset; | |
258 | ||
259 | srate += 1000; | |
260 | srate /= 2000; | |
261 | srate *= 2000; | |
262 | ||
263 | return srate; | |
264 | } | |
265 | ||
266 | static int stv0299_send_diseqc_msg (struct dvb_frontend* fe, | |
267 | struct dvb_diseqc_master_cmd *m) | |
268 | { | |
b8742700 | 269 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
270 | u8 val; |
271 | int i; | |
272 | ||
273 | dprintk ("%s\n", __FUNCTION__); | |
274 | ||
275 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
276 | return -ETIMEDOUT; | |
277 | ||
278 | val = stv0299_readreg (state, 0x08); | |
279 | ||
280 | if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x6)) /* DiSEqC mode */ | |
281 | return -EREMOTEIO; | |
282 | ||
283 | for (i=0; i<m->msg_len; i++) { | |
284 | if (stv0299_wait_diseqc_fifo (state, 100) < 0) | |
285 | return -ETIMEDOUT; | |
286 | ||
287 | if (stv0299_writeregI (state, 0x09, m->msg[i])) | |
288 | return -EREMOTEIO; | |
289 | } | |
290 | ||
291 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
292 | return -ETIMEDOUT; | |
293 | ||
294 | return 0; | |
295 | } | |
296 | ||
297 | static int stv0299_send_diseqc_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t burst) | |
298 | { | |
b8742700 | 299 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
300 | u8 val; |
301 | ||
302 | dprintk ("%s\n", __FUNCTION__); | |
303 | ||
304 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
305 | return -ETIMEDOUT; | |
306 | ||
307 | val = stv0299_readreg (state, 0x08); | |
308 | ||
309 | if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x2)) /* burst mode */ | |
310 | return -EREMOTEIO; | |
311 | ||
312 | if (stv0299_writeregI (state, 0x09, burst == SEC_MINI_A ? 0x00 : 0xff)) | |
313 | return -EREMOTEIO; | |
314 | ||
315 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
316 | return -ETIMEDOUT; | |
317 | ||
318 | if (stv0299_writeregI (state, 0x08, val)) | |
319 | return -EREMOTEIO; | |
320 | ||
321 | return 0; | |
322 | } | |
323 | ||
324 | static int stv0299_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone) | |
325 | { | |
b8742700 | 326 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
327 | u8 val; |
328 | ||
329 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
330 | return -ETIMEDOUT; | |
331 | ||
332 | val = stv0299_readreg (state, 0x08); | |
333 | ||
334 | switch (tone) { | |
335 | case SEC_TONE_ON: | |
336 | return stv0299_writeregI (state, 0x08, val | 0x3); | |
337 | ||
338 | case SEC_TONE_OFF: | |
339 | return stv0299_writeregI (state, 0x08, (val & ~0x3) | 0x02); | |
340 | ||
341 | default: | |
342 | return -EINVAL; | |
343 | } | |
344 | } | |
345 | ||
346 | static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage) | |
347 | { | |
b8742700 | 348 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
349 | u8 reg0x08; |
350 | u8 reg0x0c; | |
351 | ||
352 | dprintk("%s: %s\n", __FUNCTION__, | |
353 | voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" : | |
354 | voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??"); | |
355 | ||
356 | reg0x08 = stv0299_readreg (state, 0x08); | |
357 | reg0x0c = stv0299_readreg (state, 0x0c); | |
358 | ||
359 | /** | |
360 | * H/V switching over OP0, OP1 and OP2 are LNB power enable bits | |
361 | */ | |
362 | reg0x0c &= 0x0f; | |
363 | ||
364 | if (voltage == SEC_VOLTAGE_OFF) { | |
365 | stv0299_writeregI (state, 0x0c, 0x00); /* LNB power off! */ | |
366 | return stv0299_writeregI (state, 0x08, 0x00); /* LNB power off! */ | |
367 | } | |
368 | ||
369 | stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6)); | |
370 | ||
371 | switch (voltage) { | |
372 | case SEC_VOLTAGE_13: | |
373 | if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) reg0x0c |= 0x10; | |
374 | else reg0x0c |= 0x40; | |
375 | ||
376 | return stv0299_writeregI(state, 0x0c, reg0x0c); | |
377 | ||
378 | case SEC_VOLTAGE_18: | |
379 | return stv0299_writeregI(state, 0x0c, reg0x0c | 0x50); | |
380 | default: | |
381 | return -EINVAL; | |
382 | }; | |
383 | } | |
384 | ||
591ad98d | 385 | static inline s32 stv0299_calc_usec_delay (struct timeval lasttime, struct timeval curtime) |
1da177e4 | 386 | { |
591ad98d JS |
387 | return ((curtime.tv_usec < lasttime.tv_usec) ? |
388 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
389 | curtime.tv_usec - lasttime.tv_usec); | |
390 | } | |
391 | ||
392 | static void stv0299_sleep_until (struct timeval *waketime, u32 add_usec) | |
393 | { | |
394 | struct timeval lasttime; | |
395 | s32 delta, newdelta; | |
396 | ||
397 | waketime->tv_usec += add_usec; | |
398 | if (waketime->tv_usec >= 1000000) { | |
399 | waketime->tv_usec -= 1000000; | |
400 | waketime->tv_sec++; | |
401 | } | |
402 | ||
403 | do_gettimeofday (&lasttime); | |
404 | delta = stv0299_calc_usec_delay (lasttime, *waketime); | |
405 | if (delta > 2500) { | |
406 | msleep ((delta - 1500) / 1000); | |
407 | do_gettimeofday (&lasttime); | |
408 | newdelta = stv0299_calc_usec_delay (lasttime, *waketime); | |
409 | delta = (newdelta > delta) ? 0 : newdelta; | |
410 | } | |
411 | if (delta > 0) | |
412 | udelay (delta); | |
413 | } | |
414 | ||
415 | static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, u32 cmd) | |
416 | { | |
417 | struct stv0299_state* state = fe->demodulator_priv; | |
418 | u8 reg0x08; | |
419 | u8 reg0x0c; | |
420 | u8 lv_mask = 0x40; | |
1da177e4 LT |
421 | u8 last = 1; |
422 | int i; | |
591ad98d JS |
423 | struct timeval nexttime; |
424 | struct timeval tv[10]; | |
1da177e4 | 425 | |
591ad98d JS |
426 | reg0x08 = stv0299_readreg (state, 0x08); |
427 | reg0x0c = stv0299_readreg (state, 0x0c); | |
428 | reg0x0c &= 0x0f; | |
429 | stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6)); | |
430 | if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) | |
431 | lv_mask = 0x10; | |
1da177e4 LT |
432 | |
433 | cmd = cmd << 1; | |
591ad98d JS |
434 | if (debug_legacy_dish_switch) |
435 | printk ("%s switch command: 0x%04x\n",__FUNCTION__, cmd); | |
436 | ||
437 | do_gettimeofday (&nexttime); | |
438 | if (debug_legacy_dish_switch) | |
439 | memcpy (&tv[0], &nexttime, sizeof (struct timeval)); | |
440 | stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */ | |
1da177e4 | 441 | |
591ad98d | 442 | stv0299_sleep_until (&nexttime, 32000); |
1da177e4 LT |
443 | |
444 | for (i=0; i<9; i++) { | |
591ad98d JS |
445 | if (debug_legacy_dish_switch) |
446 | do_gettimeofday (&tv[i+1]); | |
1da177e4 | 447 | if((cmd & 0x01) != last) { |
591ad98d JS |
448 | /* set voltage to (last ? 13V : 18V) */ |
449 | stv0299_writeregI (state, 0x0c, reg0x0c | (last ? lv_mask : 0x50)); | |
1da177e4 LT |
450 | last = (last) ? 0 : 1; |
451 | } | |
452 | ||
453 | cmd = cmd >> 1; | |
454 | ||
455 | if (i != 8) | |
591ad98d JS |
456 | stv0299_sleep_until (&nexttime, 8000); |
457 | } | |
458 | if (debug_legacy_dish_switch) { | |
459 | printk ("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
460 | __FUNCTION__, fe->dvb->num); | |
461 | for (i=1; i < 10; i++) | |
462 | printk ("%d: %d\n", i, stv0299_calc_usec_delay (tv[i-1] , tv[i])); | |
1da177e4 LT |
463 | } |
464 | ||
465 | return 0; | |
466 | } | |
467 | ||
468 | static int stv0299_init (struct dvb_frontend* fe) | |
469 | { | |
b8742700 | 470 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
471 | int i; |
472 | ||
473 | dprintk("stv0299: init chip\n"); | |
474 | ||
475 | for (i=0; !(state->config->inittab[i] == 0xff && state->config->inittab[i+1] == 0xff); i+=2) | |
476 | stv0299_writeregI(state, state->config->inittab[i], state->config->inittab[i+1]); | |
477 | ||
478 | if (state->config->pll_init) { | |
479 | stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */ | |
cfbfce15 | 480 | state->config->pll_init(fe, state->i2c); |
1da177e4 LT |
481 | stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */ |
482 | } | |
483 | ||
484 | return 0; | |
485 | } | |
486 | ||
487 | static int stv0299_read_status(struct dvb_frontend* fe, fe_status_t* status) | |
488 | { | |
b8742700 | 489 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
490 | |
491 | u8 signal = 0xff - stv0299_readreg (state, 0x18); | |
492 | u8 sync = stv0299_readreg (state, 0x1b); | |
493 | ||
494 | dprintk ("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __FUNCTION__, sync); | |
495 | *status = 0; | |
496 | ||
497 | if (signal > 10) | |
498 | *status |= FE_HAS_SIGNAL; | |
499 | ||
500 | if (sync & 0x80) | |
501 | *status |= FE_HAS_CARRIER; | |
502 | ||
503 | if (sync & 0x10) | |
504 | *status |= FE_HAS_VITERBI; | |
505 | ||
506 | if (sync & 0x08) | |
507 | *status |= FE_HAS_SYNC; | |
508 | ||
509 | if ((sync & 0x98) == 0x98) | |
510 | *status |= FE_HAS_LOCK; | |
511 | ||
512 | return 0; | |
513 | } | |
514 | ||
515 | static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber) | |
516 | { | |
b8742700 | 517 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 | 518 | |
78639a3f AQ |
519 | stv0299_writeregI(state, 0x34, (stv0299_readreg(state, 0x34) & 0xcf) | 0x10); |
520 | msleep(100); | |
1da177e4 LT |
521 | *ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); |
522 | ||
523 | return 0; | |
524 | } | |
525 | ||
526 | static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength) | |
527 | { | |
b8742700 | 528 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
529 | |
530 | s32 signal = 0xffff - ((stv0299_readreg (state, 0x18) << 8) | |
531 | | stv0299_readreg (state, 0x19)); | |
532 | ||
533 | dprintk ("%s : FE_READ_SIGNAL_STRENGTH : AGC2I: 0x%02x%02x, signal=0x%04x\n", __FUNCTION__, | |
534 | stv0299_readreg (state, 0x18), | |
535 | stv0299_readreg (state, 0x19), (int) signal); | |
536 | ||
537 | signal = signal * 5 / 4; | |
538 | *strength = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal; | |
539 | ||
540 | return 0; | |
541 | } | |
542 | ||
543 | static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr) | |
544 | { | |
b8742700 | 545 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
546 | |
547 | s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8) | |
548 | | stv0299_readreg (state, 0x25)); | |
549 | xsnr = 3 * (xsnr - 0xa100); | |
550 | *snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr; | |
551 | ||
552 | return 0; | |
553 | } | |
554 | ||
555 | static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) | |
556 | { | |
b8742700 | 557 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 | 558 | |
78639a3f AQ |
559 | stv0299_writeregI(state, 0x34, (stv0299_readreg(state, 0x34) & 0xcf) | 0x30); |
560 | msleep(100); | |
561 | *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); | |
1da177e4 LT |
562 | |
563 | return 0; | |
564 | } | |
565 | ||
566 | static int stv0299_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p) | |
567 | { | |
b8742700 | 568 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
569 | int invval = 0; |
570 | ||
571 | dprintk ("%s : FE_SET_FRONTEND\n", __FUNCTION__); | |
572 | ||
573 | // set the inversion | |
574 | if (p->inversion == INVERSION_OFF) invval = 0; | |
575 | else if (p->inversion == INVERSION_ON) invval = 1; | |
576 | else { | |
577 | printk("stv0299 does not support auto-inversion\n"); | |
578 | return -EINVAL; | |
579 | } | |
580 | if (state->config->invert) invval = (~invval) & 1; | |
581 | stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval); | |
582 | ||
583 | if (state->config->enhanced_tuning) { | |
584 | /* check if we should do a finetune */ | |
585 | int frequency_delta = p->frequency - state->tuner_frequency; | |
586 | int minmax = p->u.qpsk.symbol_rate / 2000; | |
587 | if (minmax < 5000) minmax = 5000; | |
588 | ||
589 | if ((frequency_delta > -minmax) && (frequency_delta < minmax) && (frequency_delta != 0) && | |
590 | (state->fec_inner == p->u.qpsk.fec_inner) && | |
591 | (state->symbol_rate == p->u.qpsk.symbol_rate)) { | |
592 | int Drot_freq = (frequency_delta << 16) / (state->config->mclk / 1000); | |
593 | ||
594 | // zap the derotator registers first | |
595 | stv0299_writeregI(state, 0x22, 0x00); | |
596 | stv0299_writeregI(state, 0x23, 0x00); | |
597 | ||
598 | // now set them as we want | |
599 | stv0299_writeregI(state, 0x22, Drot_freq >> 8); | |
600 | stv0299_writeregI(state, 0x23, Drot_freq); | |
601 | } else { | |
602 | /* A "normal" tune is requested */ | |
603 | stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */ | |
cfbfce15 | 604 | state->config->pll_set(fe, state->i2c, p); |
1da177e4 LT |
605 | stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */ |
606 | ||
607 | stv0299_writeregI(state, 0x32, 0x80); | |
608 | stv0299_writeregI(state, 0x22, 0x00); | |
609 | stv0299_writeregI(state, 0x23, 0x00); | |
610 | stv0299_writeregI(state, 0x32, 0x19); | |
611 | stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate); | |
612 | stv0299_set_FEC (state, p->u.qpsk.fec_inner); | |
613 | } | |
614 | } else { | |
615 | stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */ | |
cfbfce15 | 616 | state->config->pll_set(fe, state->i2c, p); |
1da177e4 LT |
617 | stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */ |
618 | ||
619 | stv0299_set_FEC (state, p->u.qpsk.fec_inner); | |
620 | stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate); | |
621 | stv0299_writeregI(state, 0x22, 0x00); | |
622 | stv0299_writeregI(state, 0x23, 0x00); | |
623 | stv0299_readreg (state, 0x23); | |
624 | stv0299_writeregI(state, 0x12, 0xb9); | |
625 | } | |
626 | ||
627 | state->tuner_frequency = p->frequency; | |
628 | state->fec_inner = p->u.qpsk.fec_inner; | |
629 | state->symbol_rate = p->u.qpsk.symbol_rate; | |
630 | ||
631 | return 0; | |
632 | } | |
633 | ||
634 | static int stv0299_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p) | |
635 | { | |
b8742700 | 636 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
637 | s32 derot_freq; |
638 | int invval; | |
639 | ||
640 | derot_freq = (s32)(s16) ((stv0299_readreg (state, 0x22) << 8) | |
641 | | stv0299_readreg (state, 0x23)); | |
642 | ||
643 | derot_freq *= (state->config->mclk >> 16); | |
644 | derot_freq += 500; | |
645 | derot_freq /= 1000; | |
646 | ||
647 | p->frequency += derot_freq; | |
648 | ||
649 | invval = stv0299_readreg (state, 0x0c) & 1; | |
650 | if (state->config->invert) invval = (~invval) & 1; | |
651 | p->inversion = invval ? INVERSION_ON : INVERSION_OFF; | |
652 | ||
653 | p->u.qpsk.fec_inner = stv0299_get_fec (state); | |
654 | p->u.qpsk.symbol_rate = stv0299_get_symbolrate (state); | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
659 | static int stv0299_sleep(struct dvb_frontend* fe) | |
660 | { | |
b8742700 | 661 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
662 | |
663 | stv0299_writeregI(state, 0x02, 0x80); | |
664 | state->initialised = 0; | |
665 | ||
666 | return 0; | |
667 | } | |
668 | ||
669 | static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings) | |
670 | { | |
b8742700 | 671 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
672 | |
673 | fesettings->min_delay_ms = state->config->min_delay_ms; | |
674 | if (fesettings->parameters.u.qpsk.symbol_rate < 10000000) { | |
675 | fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 32000; | |
676 | fesettings->max_drift = 5000; | |
677 | } else { | |
678 | fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 16000; | |
679 | fesettings->max_drift = fesettings->parameters.u.qpsk.symbol_rate / 2000; | |
680 | } | |
681 | return 0; | |
682 | } | |
683 | ||
684 | static void stv0299_release(struct dvb_frontend* fe) | |
685 | { | |
b8742700 | 686 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
687 | kfree(state); |
688 | } | |
689 | ||
690 | static struct dvb_frontend_ops stv0299_ops; | |
691 | ||
692 | struct dvb_frontend* stv0299_attach(const struct stv0299_config* config, | |
693 | struct i2c_adapter* i2c) | |
694 | { | |
695 | struct stv0299_state* state = NULL; | |
696 | int id; | |
697 | ||
698 | /* allocate memory for the internal state */ | |
b8742700 | 699 | state = kmalloc(sizeof(struct stv0299_state), GFP_KERNEL); |
1da177e4 LT |
700 | if (state == NULL) goto error; |
701 | ||
702 | /* setup the state */ | |
703 | state->config = config; | |
704 | state->i2c = i2c; | |
705 | memcpy(&state->ops, &stv0299_ops, sizeof(struct dvb_frontend_ops)); | |
706 | state->initialised = 0; | |
707 | state->tuner_frequency = 0; | |
708 | state->symbol_rate = 0; | |
709 | state->fec_inner = 0; | |
1da177e4 LT |
710 | |
711 | /* check if the demod is there */ | |
712 | stv0299_writeregI(state, 0x02, 0x34); /* standby off */ | |
713 | msleep(200); | |
714 | id = stv0299_readreg(state, 0x00); | |
715 | ||
716 | /* register 0x00 contains 0xa1 for STV0299 and STV0299B */ | |
717 | /* register 0x00 might contain 0x80 when returning from standby */ | |
718 | if (id != 0xa1 && id != 0x80) goto error; | |
719 | ||
720 | /* create dvb_frontend */ | |
721 | state->frontend.ops = &state->ops; | |
722 | state->frontend.demodulator_priv = state; | |
723 | return &state->frontend; | |
724 | ||
725 | error: | |
726 | kfree(state); | |
727 | return NULL; | |
728 | } | |
729 | ||
730 | static struct dvb_frontend_ops stv0299_ops = { | |
731 | ||
732 | .info = { | |
733 | .name = "ST STV0299 DVB-S", | |
734 | .type = FE_QPSK, | |
735 | .frequency_min = 950000, | |
736 | .frequency_max = 2150000, | |
737 | .frequency_stepsize = 125, /* kHz for QPSK frontends */ | |
738 | .frequency_tolerance = 0, | |
739 | .symbol_rate_min = 1000000, | |
740 | .symbol_rate_max = 45000000, | |
741 | .symbol_rate_tolerance = 500, /* ppm */ | |
742 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
743 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | | |
744 | FE_CAN_QPSK | | |
745 | FE_CAN_FEC_AUTO | |
746 | }, | |
747 | ||
748 | .release = stv0299_release, | |
749 | ||
750 | .init = stv0299_init, | |
751 | .sleep = stv0299_sleep, | |
752 | ||
753 | .set_frontend = stv0299_set_frontend, | |
754 | .get_frontend = stv0299_get_frontend, | |
755 | .get_tune_settings = stv0299_get_tune_settings, | |
756 | ||
757 | .read_status = stv0299_read_status, | |
758 | .read_ber = stv0299_read_ber, | |
759 | .read_signal_strength = stv0299_read_signal_strength, | |
760 | .read_snr = stv0299_read_snr, | |
761 | .read_ucblocks = stv0299_read_ucblocks, | |
762 | ||
763 | .diseqc_send_master_cmd = stv0299_send_diseqc_msg, | |
764 | .diseqc_send_burst = stv0299_send_diseqc_burst, | |
765 | .set_tone = stv0299_set_tone, | |
766 | .set_voltage = stv0299_set_voltage, | |
767 | .dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd, | |
768 | }; | |
769 | ||
591ad98d JS |
770 | module_param(debug_legacy_dish_switch, int, 0444); |
771 | MODULE_PARM_DESC(debug_legacy_dish_switch, "Enable timing analysis for Dish Network legacy switches"); | |
772 | ||
1da177e4 LT |
773 | module_param(debug, int, 0644); |
774 | MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); | |
775 | ||
776 | MODULE_DESCRIPTION("ST STV0299 DVB Demodulator driver"); | |
777 | MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Peter Schildmann, Felix Domke, " | |
778 | Content-type: text/html