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> | |
1da177e4 LT |
48 | #include <linux/string.h> |
49 | #include <linux/slab.h> | |
4e57b681 | 50 | #include <linux/jiffies.h> |
1da177e4 LT |
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; | |
1da177e4 LT |
58 | const struct stv0299_config* config; |
59 | struct dvb_frontend frontend; | |
60 | ||
61 | u8 initialised:1; | |
62 | u32 tuner_frequency; | |
63 | u32 symbol_rate; | |
64 | fe_code_rate_t fec_inner; | |
37650221 | 65 | int errmode; |
1da177e4 LT |
66 | }; |
67 | ||
37650221 AQ |
68 | #define STATUS_BER 0 |
69 | #define STATUS_UCBLOCKS 1 | |
70 | ||
1da177e4 | 71 | static int debug; |
591ad98d | 72 | static int debug_legacy_dish_switch; |
1da177e4 LT |
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, " | |
271ddbf7 | 89 | "ret == %i)\n", __func__, reg, data, ret); |
1da177e4 LT |
90 | |
91 | return (ret != 1) ? -EREMOTEIO : 0; | |
92 | } | |
93 | ||
34630409 | 94 | static int stv0299_write(struct dvb_frontend* fe, u8 *buf, int len) |
1da177e4 | 95 | { |
9101e622 | 96 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 | 97 | |
c10d14d6 AQ |
98 | if (len != 2) |
99 | return -EINVAL; | |
100 | ||
101 | return stv0299_writeregI(state, buf[0], buf[1]); | |
1da177e4 LT |
102 | } |
103 | ||
104 | static u8 stv0299_readreg (struct stv0299_state* state, u8 reg) | |
105 | { | |
106 | int ret; | |
107 | u8 b0 [] = { reg }; | |
108 | u8 b1 [] = { 0 }; | |
109 | struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 }, | |
110 | { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } }; | |
111 | ||
112 | ret = i2c_transfer (state->i2c, msg, 2); | |
113 | ||
114 | if (ret != 2) | |
115 | dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", | |
271ddbf7 | 116 | __func__, reg, ret); |
1da177e4 LT |
117 | |
118 | return b1[0]; | |
119 | } | |
120 | ||
121 | static int stv0299_readregs (struct stv0299_state* state, u8 reg1, u8 *b, u8 len) | |
122 | { | |
123 | int ret; | |
124 | struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = ®1, .len = 1 }, | |
125 | { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } }; | |
126 | ||
127 | ret = i2c_transfer (state->i2c, msg, 2); | |
128 | ||
129 | if (ret != 2) | |
271ddbf7 | 130 | dprintk("%s: readreg error (ret == %i)\n", __func__, ret); |
1da177e4 LT |
131 | |
132 | return ret == 2 ? 0 : ret; | |
133 | } | |
134 | ||
135 | static int stv0299_set_FEC (struct stv0299_state* state, fe_code_rate_t fec) | |
136 | { | |
271ddbf7 | 137 | dprintk ("%s\n", __func__); |
1da177e4 LT |
138 | |
139 | switch (fec) { | |
140 | case FEC_AUTO: | |
141 | { | |
142 | return stv0299_writeregI (state, 0x31, 0x1f); | |
143 | } | |
144 | case FEC_1_2: | |
145 | { | |
146 | return stv0299_writeregI (state, 0x31, 0x01); | |
147 | } | |
148 | case FEC_2_3: | |
149 | { | |
150 | return stv0299_writeregI (state, 0x31, 0x02); | |
151 | } | |
152 | case FEC_3_4: | |
153 | { | |
154 | return stv0299_writeregI (state, 0x31, 0x04); | |
155 | } | |
156 | case FEC_5_6: | |
157 | { | |
158 | return stv0299_writeregI (state, 0x31, 0x08); | |
159 | } | |
160 | case FEC_7_8: | |
161 | { | |
162 | return stv0299_writeregI (state, 0x31, 0x10); | |
163 | } | |
164 | default: | |
165 | { | |
166 | return -EINVAL; | |
167 | } | |
168 | } | |
169 | } | |
170 | ||
171 | static fe_code_rate_t stv0299_get_fec (struct stv0299_state* state) | |
172 | { | |
173 | static fe_code_rate_t fec_tab [] = { FEC_2_3, FEC_3_4, FEC_5_6, | |
174 | FEC_7_8, FEC_1_2 }; | |
175 | u8 index; | |
176 | ||
271ddbf7 | 177 | dprintk ("%s\n", __func__); |
1da177e4 LT |
178 | |
179 | index = stv0299_readreg (state, 0x1b); | |
180 | index &= 0x7; | |
181 | ||
182 | if (index > 4) | |
183 | return FEC_AUTO; | |
184 | ||
185 | return fec_tab [index]; | |
186 | } | |
187 | ||
188 | static int stv0299_wait_diseqc_fifo (struct stv0299_state* state, int timeout) | |
189 | { | |
190 | unsigned long start = jiffies; | |
191 | ||
271ddbf7 | 192 | dprintk ("%s\n", __func__); |
1da177e4 LT |
193 | |
194 | while (stv0299_readreg(state, 0x0a) & 1) { | |
195 | if (jiffies - start > timeout) { | |
271ddbf7 | 196 | dprintk ("%s: timeout!!\n", __func__); |
1da177e4 LT |
197 | return -ETIMEDOUT; |
198 | } | |
199 | msleep(10); | |
200 | }; | |
201 | ||
202 | return 0; | |
203 | } | |
204 | ||
205 | static int stv0299_wait_diseqc_idle (struct stv0299_state* state, int timeout) | |
206 | { | |
207 | unsigned long start = jiffies; | |
208 | ||
271ddbf7 | 209 | dprintk ("%s\n", __func__); |
1da177e4 LT |
210 | |
211 | while ((stv0299_readreg(state, 0x0a) & 3) != 2 ) { | |
212 | if (jiffies - start > timeout) { | |
271ddbf7 | 213 | dprintk ("%s: timeout!!\n", __func__); |
1da177e4 LT |
214 | return -ETIMEDOUT; |
215 | } | |
216 | msleep(10); | |
217 | }; | |
218 | ||
219 | return 0; | |
220 | } | |
221 | ||
222 | static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate) | |
223 | { | |
9101e622 | 224 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
225 | u64 big = srate; |
226 | u32 ratio; | |
227 | ||
228 | // check rate is within limits | |
229 | if ((srate < 1000000) || (srate > 45000000)) return -EINVAL; | |
230 | ||
231 | // calculate value to program | |
232 | big = big << 20; | |
233 | big += (state->config->mclk-1); // round correctly | |
234 | do_div(big, state->config->mclk); | |
235 | ratio = big << 4; | |
236 | ||
237 | return state->config->set_symbol_rate(fe, srate, ratio); | |
238 | } | |
239 | ||
240 | static int stv0299_get_symbolrate (struct stv0299_state* state) | |
241 | { | |
242 | u32 Mclk = state->config->mclk / 4096L; | |
243 | u32 srate; | |
244 | s32 offset; | |
245 | u8 sfr[3]; | |
246 | s8 rtf; | |
247 | ||
271ddbf7 | 248 | dprintk ("%s\n", __func__); |
1da177e4 LT |
249 | |
250 | stv0299_readregs (state, 0x1f, sfr, 3); | |
0402a6c2 | 251 | stv0299_readregs (state, 0x1a, (u8 *)&rtf, 1); |
1da177e4 LT |
252 | |
253 | srate = (sfr[0] << 8) | sfr[1]; | |
254 | srate *= Mclk; | |
255 | srate /= 16; | |
256 | srate += (sfr[2] >> 4) * Mclk / 256; | |
257 | offset = (s32) rtf * (srate / 4096L); | |
258 | offset /= 128; | |
259 | ||
271ddbf7 HH |
260 | dprintk ("%s : srate = %i\n", __func__, srate); |
261 | dprintk ("%s : ofset = %i\n", __func__, offset); | |
1da177e4 LT |
262 | |
263 | srate += offset; | |
264 | ||
265 | srate += 1000; | |
266 | srate /= 2000; | |
267 | srate *= 2000; | |
268 | ||
269 | return srate; | |
270 | } | |
271 | ||
272 | static int stv0299_send_diseqc_msg (struct dvb_frontend* fe, | |
273 | struct dvb_diseqc_master_cmd *m) | |
274 | { | |
9101e622 | 275 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
276 | u8 val; |
277 | int i; | |
278 | ||
271ddbf7 | 279 | dprintk ("%s\n", __func__); |
1da177e4 LT |
280 | |
281 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
282 | return -ETIMEDOUT; | |
283 | ||
284 | val = stv0299_readreg (state, 0x08); | |
285 | ||
286 | if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x6)) /* DiSEqC mode */ | |
287 | return -EREMOTEIO; | |
288 | ||
289 | for (i=0; i<m->msg_len; i++) { | |
290 | if (stv0299_wait_diseqc_fifo (state, 100) < 0) | |
291 | return -ETIMEDOUT; | |
292 | ||
293 | if (stv0299_writeregI (state, 0x09, m->msg[i])) | |
294 | return -EREMOTEIO; | |
295 | } | |
296 | ||
297 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
298 | return -ETIMEDOUT; | |
299 | ||
300 | return 0; | |
301 | } | |
302 | ||
303 | static int stv0299_send_diseqc_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t burst) | |
304 | { | |
9101e622 | 305 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
306 | u8 val; |
307 | ||
271ddbf7 | 308 | dprintk ("%s\n", __func__); |
1da177e4 LT |
309 | |
310 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
311 | return -ETIMEDOUT; | |
312 | ||
313 | val = stv0299_readreg (state, 0x08); | |
314 | ||
315 | if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x2)) /* burst mode */ | |
316 | return -EREMOTEIO; | |
317 | ||
318 | if (stv0299_writeregI (state, 0x09, burst == SEC_MINI_A ? 0x00 : 0xff)) | |
319 | return -EREMOTEIO; | |
320 | ||
321 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
322 | return -ETIMEDOUT; | |
323 | ||
324 | if (stv0299_writeregI (state, 0x08, val)) | |
325 | return -EREMOTEIO; | |
326 | ||
327 | return 0; | |
328 | } | |
329 | ||
330 | static int stv0299_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone) | |
331 | { | |
9101e622 | 332 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
333 | u8 val; |
334 | ||
335 | if (stv0299_wait_diseqc_idle (state, 100) < 0) | |
336 | return -ETIMEDOUT; | |
337 | ||
338 | val = stv0299_readreg (state, 0x08); | |
339 | ||
340 | switch (tone) { | |
341 | case SEC_TONE_ON: | |
342 | return stv0299_writeregI (state, 0x08, val | 0x3); | |
343 | ||
344 | case SEC_TONE_OFF: | |
345 | return stv0299_writeregI (state, 0x08, (val & ~0x3) | 0x02); | |
346 | ||
347 | default: | |
348 | return -EINVAL; | |
349 | } | |
350 | } | |
351 | ||
352 | static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage) | |
353 | { | |
9101e622 | 354 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
355 | u8 reg0x08; |
356 | u8 reg0x0c; | |
357 | ||
271ddbf7 | 358 | dprintk("%s: %s\n", __func__, |
1da177e4 LT |
359 | voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" : |
360 | voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??"); | |
361 | ||
362 | reg0x08 = stv0299_readreg (state, 0x08); | |
363 | reg0x0c = stv0299_readreg (state, 0x0c); | |
364 | ||
365 | /** | |
366 | * H/V switching over OP0, OP1 and OP2 are LNB power enable bits | |
367 | */ | |
368 | reg0x0c &= 0x0f; | |
369 | ||
370 | if (voltage == SEC_VOLTAGE_OFF) { | |
371 | stv0299_writeregI (state, 0x0c, 0x00); /* LNB power off! */ | |
372 | return stv0299_writeregI (state, 0x08, 0x00); /* LNB power off! */ | |
373 | } | |
374 | ||
375 | stv0299_writeregI (state, 0x08, (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) reg0x0c |= 0x10; | |
380 | else reg0x0c |= 0x40; | |
381 | ||
382 | return stv0299_writeregI(state, 0x0c, reg0x0c); | |
383 | ||
384 | case SEC_VOLTAGE_18: | |
385 | return stv0299_writeregI(state, 0x0c, reg0x0c | 0x50); | |
386 | default: | |
387 | return -EINVAL; | |
388 | }; | |
389 | } | |
390 | ||
400b7083 | 391 | static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long cmd) |
591ad98d JS |
392 | { |
393 | struct stv0299_state* state = fe->demodulator_priv; | |
394 | u8 reg0x08; | |
395 | u8 reg0x0c; | |
396 | u8 lv_mask = 0x40; | |
1da177e4 LT |
397 | u8 last = 1; |
398 | int i; | |
591ad98d JS |
399 | struct timeval nexttime; |
400 | struct timeval tv[10]; | |
1da177e4 | 401 | |
591ad98d JS |
402 | reg0x08 = stv0299_readreg (state, 0x08); |
403 | reg0x0c = stv0299_readreg (state, 0x0c); | |
404 | reg0x0c &= 0x0f; | |
405 | stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6)); | |
406 | if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) | |
407 | lv_mask = 0x10; | |
1da177e4 LT |
408 | |
409 | cmd = cmd << 1; | |
591ad98d | 410 | if (debug_legacy_dish_switch) |
271ddbf7 | 411 | printk ("%s switch command: 0x%04lx\n",__func__, cmd); |
591ad98d JS |
412 | |
413 | do_gettimeofday (&nexttime); | |
414 | if (debug_legacy_dish_switch) | |
415 | memcpy (&tv[0], &nexttime, sizeof (struct timeval)); | |
416 | stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */ | |
1da177e4 | 417 | |
83b75b04 | 418 | dvb_frontend_sleep_until(&nexttime, 32000); |
1da177e4 LT |
419 | |
420 | for (i=0; i<9; i++) { | |
591ad98d JS |
421 | if (debug_legacy_dish_switch) |
422 | do_gettimeofday (&tv[i+1]); | |
1da177e4 | 423 | if((cmd & 0x01) != last) { |
591ad98d JS |
424 | /* set voltage to (last ? 13V : 18V) */ |
425 | stv0299_writeregI (state, 0x0c, reg0x0c | (last ? lv_mask : 0x50)); | |
1da177e4 LT |
426 | last = (last) ? 0 : 1; |
427 | } | |
428 | ||
429 | cmd = cmd >> 1; | |
430 | ||
431 | if (i != 8) | |
83b75b04 | 432 | dvb_frontend_sleep_until(&nexttime, 8000); |
591ad98d JS |
433 | } |
434 | if (debug_legacy_dish_switch) { | |
435 | printk ("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
271ddbf7 | 436 | __func__, fe->dvb->num); |
83b75b04 N |
437 | for (i = 1; i < 10; i++) |
438 | printk ("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
1da177e4 LT |
439 | } |
440 | ||
441 | return 0; | |
442 | } | |
443 | ||
444 | static int stv0299_init (struct dvb_frontend* fe) | |
445 | { | |
9101e622 | 446 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
447 | int i; |
448 | ||
449 | dprintk("stv0299: init chip\n"); | |
450 | ||
451 | for (i=0; !(state->config->inittab[i] == 0xff && state->config->inittab[i+1] == 0xff); i+=2) | |
452 | stv0299_writeregI(state, state->config->inittab[i], state->config->inittab[i+1]); | |
453 | ||
1da177e4 LT |
454 | return 0; |
455 | } | |
456 | ||
457 | static int stv0299_read_status(struct dvb_frontend* fe, fe_status_t* status) | |
458 | { | |
9101e622 | 459 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
460 | |
461 | u8 signal = 0xff - stv0299_readreg (state, 0x18); | |
462 | u8 sync = stv0299_readreg (state, 0x1b); | |
463 | ||
271ddbf7 | 464 | dprintk ("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __func__, sync); |
1da177e4 LT |
465 | *status = 0; |
466 | ||
467 | if (signal > 10) | |
468 | *status |= FE_HAS_SIGNAL; | |
469 | ||
470 | if (sync & 0x80) | |
471 | *status |= FE_HAS_CARRIER; | |
472 | ||
473 | if (sync & 0x10) | |
474 | *status |= FE_HAS_VITERBI; | |
475 | ||
476 | if (sync & 0x08) | |
477 | *status |= FE_HAS_SYNC; | |
478 | ||
479 | if ((sync & 0x98) == 0x98) | |
480 | *status |= FE_HAS_LOCK; | |
481 | ||
482 | return 0; | |
483 | } | |
484 | ||
485 | static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber) | |
486 | { | |
9101e622 | 487 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 | 488 | |
37650221 | 489 | if (state->errmode != STATUS_BER) return 0; |
1da177e4 LT |
490 | *ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); |
491 | ||
492 | return 0; | |
493 | } | |
494 | ||
495 | static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength) | |
496 | { | |
9101e622 | 497 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
498 | |
499 | s32 signal = 0xffff - ((stv0299_readreg (state, 0x18) << 8) | |
500 | | stv0299_readreg (state, 0x19)); | |
501 | ||
271ddbf7 | 502 | dprintk ("%s : FE_READ_SIGNAL_STRENGTH : AGC2I: 0x%02x%02x, signal=0x%04x\n", __func__, |
1da177e4 LT |
503 | stv0299_readreg (state, 0x18), |
504 | stv0299_readreg (state, 0x19), (int) signal); | |
505 | ||
506 | signal = signal * 5 / 4; | |
507 | *strength = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal; | |
508 | ||
509 | return 0; | |
510 | } | |
511 | ||
512 | static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr) | |
513 | { | |
9101e622 | 514 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
515 | |
516 | s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8) | |
517 | | stv0299_readreg (state, 0x25)); | |
518 | xsnr = 3 * (xsnr - 0xa100); | |
519 | *snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr; | |
520 | ||
521 | return 0; | |
522 | } | |
523 | ||
524 | static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) | |
525 | { | |
9101e622 | 526 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 | 527 | |
37650221 AQ |
528 | if (state->errmode != STATUS_UCBLOCKS) *ucblocks = 0; |
529 | else *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); | |
1da177e4 LT |
530 | |
531 | return 0; | |
532 | } | |
533 | ||
534 | static int stv0299_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p) | |
535 | { | |
9101e622 | 536 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
537 | int invval = 0; |
538 | ||
271ddbf7 | 539 | dprintk ("%s : FE_SET_FRONTEND\n", __func__); |
1da177e4 LT |
540 | |
541 | // set the inversion | |
542 | if (p->inversion == INVERSION_OFF) invval = 0; | |
543 | else if (p->inversion == INVERSION_ON) invval = 1; | |
544 | else { | |
545 | printk("stv0299 does not support auto-inversion\n"); | |
546 | return -EINVAL; | |
547 | } | |
548 | if (state->config->invert) invval = (~invval) & 1; | |
549 | stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval); | |
550 | ||
dea74869 PB |
551 | if (fe->ops.tuner_ops.set_params) { |
552 | fe->ops.tuner_ops.set_params(fe, p); | |
553 | if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); | |
53a8ee3e | 554 | } |
3528cc4e AQ |
555 | |
556 | stv0299_set_FEC (state, p->u.qpsk.fec_inner); | |
557 | stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate); | |
558 | stv0299_writeregI(state, 0x22, 0x00); | |
559 | stv0299_writeregI(state, 0x23, 0x00); | |
1da177e4 LT |
560 | |
561 | state->tuner_frequency = p->frequency; | |
562 | state->fec_inner = p->u.qpsk.fec_inner; | |
563 | state->symbol_rate = p->u.qpsk.symbol_rate; | |
564 | ||
565 | return 0; | |
566 | } | |
567 | ||
568 | static int stv0299_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p) | |
569 | { | |
9101e622 | 570 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
571 | s32 derot_freq; |
572 | int invval; | |
573 | ||
574 | derot_freq = (s32)(s16) ((stv0299_readreg (state, 0x22) << 8) | |
575 | | stv0299_readreg (state, 0x23)); | |
576 | ||
577 | derot_freq *= (state->config->mclk >> 16); | |
578 | derot_freq += 500; | |
579 | derot_freq /= 1000; | |
580 | ||
581 | p->frequency += derot_freq; | |
582 | ||
583 | invval = stv0299_readreg (state, 0x0c) & 1; | |
584 | if (state->config->invert) invval = (~invval) & 1; | |
585 | p->inversion = invval ? INVERSION_ON : INVERSION_OFF; | |
586 | ||
587 | p->u.qpsk.fec_inner = stv0299_get_fec (state); | |
588 | p->u.qpsk.symbol_rate = stv0299_get_symbolrate (state); | |
589 | ||
590 | return 0; | |
591 | } | |
592 | ||
593 | static int stv0299_sleep(struct dvb_frontend* fe) | |
594 | { | |
9101e622 | 595 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
596 | |
597 | stv0299_writeregI(state, 0x02, 0x80); | |
598 | state->initialised = 0; | |
599 | ||
600 | return 0; | |
601 | } | |
602 | ||
53a8ee3e AQ |
603 | static int stv0299_i2c_gate_ctrl(struct dvb_frontend* fe, int enable) |
604 | { | |
605 | struct stv0299_state* state = fe->demodulator_priv; | |
606 | ||
607 | if (enable) { | |
a9686e0d | 608 | stv0299_writeregI(state, 0x05, 0xb5); |
53a8ee3e | 609 | } else { |
a9686e0d | 610 | stv0299_writeregI(state, 0x05, 0x35); |
53a8ee3e | 611 | } |
a9686e0d AQ |
612 | udelay(1); |
613 | return 0; | |
53a8ee3e AQ |
614 | } |
615 | ||
1da177e4 LT |
616 | static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings) |
617 | { | |
9101e622 | 618 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
619 | |
620 | fesettings->min_delay_ms = state->config->min_delay_ms; | |
621 | if (fesettings->parameters.u.qpsk.symbol_rate < 10000000) { | |
622 | fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 32000; | |
623 | fesettings->max_drift = 5000; | |
624 | } else { | |
625 | fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 16000; | |
626 | fesettings->max_drift = fesettings->parameters.u.qpsk.symbol_rate / 2000; | |
627 | } | |
628 | return 0; | |
629 | } | |
630 | ||
631 | static void stv0299_release(struct dvb_frontend* fe) | |
632 | { | |
b8742700 | 633 | struct stv0299_state* state = fe->demodulator_priv; |
1da177e4 LT |
634 | kfree(state); |
635 | } | |
636 | ||
637 | static struct dvb_frontend_ops stv0299_ops; | |
638 | ||
639 | struct dvb_frontend* stv0299_attach(const struct stv0299_config* config, | |
640 | struct i2c_adapter* i2c) | |
641 | { | |
642 | struct stv0299_state* state = NULL; | |
643 | int id; | |
644 | ||
645 | /* allocate memory for the internal state */ | |
b8742700 | 646 | state = kmalloc(sizeof(struct stv0299_state), GFP_KERNEL); |
1da177e4 LT |
647 | if (state == NULL) goto error; |
648 | ||
649 | /* setup the state */ | |
650 | state->config = config; | |
651 | state->i2c = i2c; | |
1da177e4 LT |
652 | state->initialised = 0; |
653 | state->tuner_frequency = 0; | |
654 | state->symbol_rate = 0; | |
655 | state->fec_inner = 0; | |
37650221 | 656 | state->errmode = STATUS_BER; |
1da177e4 LT |
657 | |
658 | /* check if the demod is there */ | |
659 | stv0299_writeregI(state, 0x02, 0x34); /* standby off */ | |
660 | msleep(200); | |
661 | id = stv0299_readreg(state, 0x00); | |
662 | ||
663 | /* register 0x00 contains 0xa1 for STV0299 and STV0299B */ | |
664 | /* register 0x00 might contain 0x80 when returning from standby */ | |
665 | if (id != 0xa1 && id != 0x80) goto error; | |
666 | ||
667 | /* create dvb_frontend */ | |
dea74869 | 668 | memcpy(&state->frontend.ops, &stv0299_ops, sizeof(struct dvb_frontend_ops)); |
9101e622 | 669 | state->frontend.demodulator_priv = state; |
1da177e4 LT |
670 | return &state->frontend; |
671 | ||
672 | error: | |
673 | kfree(state); | |
674 | return NULL; | |
675 | } | |
676 | ||
677 | static struct dvb_frontend_ops stv0299_ops = { | |
678 | ||
679 | .info = { | |
680 | .name = "ST STV0299 DVB-S", | |
681 | .type = FE_QPSK, | |
682 | .frequency_min = 950000, | |
683 | .frequency_max = 2150000, | |
684 | .frequency_stepsize = 125, /* kHz for QPSK frontends */ | |
685 | .frequency_tolerance = 0, | |
686 | .symbol_rate_min = 1000000, | |
687 | .symbol_rate_max = 45000000, | |
688 | .symbol_rate_tolerance = 500, /* ppm */ | |
689 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
690 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | | |
691 | FE_CAN_QPSK | | |
692 | FE_CAN_FEC_AUTO | |
693 | }, | |
694 | ||
695 | .release = stv0299_release, | |
696 | ||
697 | .init = stv0299_init, | |
698 | .sleep = stv0299_sleep, | |
c10d14d6 | 699 | .write = stv0299_write, |
53a8ee3e | 700 | .i2c_gate_ctrl = stv0299_i2c_gate_ctrl, |
1da177e4 LT |
701 | |
702 | .set_frontend = stv0299_set_frontend, | |
703 | .get_frontend = stv0299_get_frontend, | |
704 | .get_tune_settings = stv0299_get_tune_settings, | |
705 | ||
706 | .read_status = stv0299_read_status, | |
707 | .read_ber = stv0299_read_ber, | |
708 | .read_signal_strength = stv0299_read_signal_strength, | |
709 | .read_snr = stv0299_read_snr, | |
710 | .read_ucblocks = stv0299_read_ucblocks, | |
711 | ||
712 | .diseqc_send_master_cmd = stv0299_send_diseqc_msg, | |
713 | .diseqc_send_burst = stv0299_send_diseqc_burst, | |
714 | .set_tone = stv0299_set_tone, | |
715 | .set_voltage = stv0299_set_voltage, | |
716 | .dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd, | |
717 | }; | |
718 | ||
591ad98d JS |
719 | module_param(debug_legacy_dish_switch, int, 0444); |
720 | MODULE_PARM_DESC(debug_legacy_dish_switch, "Enable timing analysis for Dish Network legacy switches"); | |
721 | ||
1da177e4 LT |
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, " | |
53a8ee3e | 727 | "Andreas Oberritter, Andrew de Quincey, Kenneth Aafly"); |
1da177e4 LT |
728 | MODULE_LICENSE("GPL"); |
729 | ||
1da177e4 | 730 | EXPORT_SYMBOL(stv0299_attach); |