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e92f9a56 MK |
1 | /* |
2 | * mxl111sf-demod.c - driver for the MaxLinear MXL111SF DVB-T demodulator | |
3 | * | |
08e10972 | 4 | * Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org> |
e92f9a56 MK |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | */ | |
20 | ||
21 | #include "mxl111sf-demod.h" | |
22 | #include "mxl111sf-reg.h" | |
23 | ||
24 | /* debug */ | |
25 | static int mxl111sf_demod_debug; | |
26 | module_param_named(debug, mxl111sf_demod_debug, int, 0644); | |
27 | MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able))."); | |
28 | ||
29 | #define mxl_dbg(fmt, arg...) \ | |
30 | if (mxl111sf_demod_debug) \ | |
31 | mxl_printk(KERN_DEBUG, fmt, ##arg) | |
32 | ||
33 | /* ------------------------------------------------------------------------ */ | |
34 | ||
35 | struct mxl111sf_demod_state { | |
36 | struct mxl111sf_state *mxl_state; | |
37 | ||
9c5e44a0 | 38 | const struct mxl111sf_demod_config *cfg; |
e92f9a56 MK |
39 | |
40 | struct dvb_frontend fe; | |
41 | }; | |
42 | ||
43 | /* ------------------------------------------------------------------------ */ | |
44 | ||
45 | static int mxl111sf_demod_read_reg(struct mxl111sf_demod_state *state, | |
46 | u8 addr, u8 *data) | |
47 | { | |
48 | return (state->cfg->read_reg) ? | |
49 | state->cfg->read_reg(state->mxl_state, addr, data) : | |
50 | -EINVAL; | |
51 | } | |
52 | ||
53 | static int mxl111sf_demod_write_reg(struct mxl111sf_demod_state *state, | |
54 | u8 addr, u8 data) | |
55 | { | |
56 | return (state->cfg->write_reg) ? | |
57 | state->cfg->write_reg(state->mxl_state, addr, data) : | |
58 | -EINVAL; | |
59 | } | |
60 | ||
61 | static | |
62 | int mxl111sf_demod_program_regs(struct mxl111sf_demod_state *state, | |
63 | struct mxl111sf_reg_ctrl_info *ctrl_reg_info) | |
64 | { | |
65 | return (state->cfg->program_regs) ? | |
66 | state->cfg->program_regs(state->mxl_state, ctrl_reg_info) : | |
67 | -EINVAL; | |
68 | } | |
69 | ||
70 | /* ------------------------------------------------------------------------ */ | |
71 | /* TPS */ | |
72 | ||
73 | static | |
74 | int mxl1x1sf_demod_get_tps_code_rate(struct mxl111sf_demod_state *state, | |
0df289a2 | 75 | enum fe_code_rate *code_rate) |
e92f9a56 MK |
76 | { |
77 | u8 val; | |
78 | int ret = mxl111sf_demod_read_reg(state, V6_CODE_RATE_TPS_REG, &val); | |
79 | /* bit<2:0> - 000:1/2, 001:2/3, 010:3/4, 011:5/6, 100:7/8 */ | |
80 | if (mxl_fail(ret)) | |
81 | goto fail; | |
82 | ||
83 | switch (val & V6_CODE_RATE_TPS_MASK) { | |
84 | case 0: | |
85 | *code_rate = FEC_1_2; | |
86 | break; | |
87 | case 1: | |
88 | *code_rate = FEC_2_3; | |
89 | break; | |
90 | case 2: | |
91 | *code_rate = FEC_3_4; | |
92 | break; | |
93 | case 3: | |
94 | *code_rate = FEC_5_6; | |
95 | break; | |
96 | case 4: | |
97 | *code_rate = FEC_7_8; | |
98 | break; | |
99 | } | |
100 | fail: | |
101 | return ret; | |
102 | } | |
103 | ||
104 | static | |
531157b3 | 105 | int mxl1x1sf_demod_get_tps_modulation(struct mxl111sf_demod_state *state, |
0df289a2 | 106 | enum fe_modulation *modulation) |
e92f9a56 MK |
107 | { |
108 | u8 val; | |
109 | int ret = mxl111sf_demod_read_reg(state, V6_MODORDER_TPS_REG, &val); | |
110 | /* Constellation, 00 : QPSK, 01 : 16QAM, 10:64QAM */ | |
111 | if (mxl_fail(ret)) | |
112 | goto fail; | |
113 | ||
114 | switch ((val & V6_PARAM_CONSTELLATION_MASK) >> 4) { | |
115 | case 0: | |
531157b3 | 116 | *modulation = QPSK; |
e92f9a56 MK |
117 | break; |
118 | case 1: | |
531157b3 | 119 | *modulation = QAM_16; |
e92f9a56 MK |
120 | break; |
121 | case 2: | |
531157b3 | 122 | *modulation = QAM_64; |
e92f9a56 MK |
123 | break; |
124 | } | |
125 | fail: | |
126 | return ret; | |
127 | } | |
128 | ||
129 | static | |
130 | int mxl1x1sf_demod_get_tps_guard_fft_mode(struct mxl111sf_demod_state *state, | |
0df289a2 | 131 | enum fe_transmit_mode *fft_mode) |
e92f9a56 MK |
132 | { |
133 | u8 val; | |
134 | int ret = mxl111sf_demod_read_reg(state, V6_MODE_TPS_REG, &val); | |
135 | /* FFT Mode, 00:2K, 01:8K, 10:4K */ | |
136 | if (mxl_fail(ret)) | |
137 | goto fail; | |
138 | ||
139 | switch ((val & V6_PARAM_FFT_MODE_MASK) >> 2) { | |
140 | case 0: | |
141 | *fft_mode = TRANSMISSION_MODE_2K; | |
142 | break; | |
143 | case 1: | |
144 | *fft_mode = TRANSMISSION_MODE_8K; | |
145 | break; | |
146 | case 2: | |
147 | *fft_mode = TRANSMISSION_MODE_4K; | |
148 | break; | |
149 | } | |
150 | fail: | |
151 | return ret; | |
152 | } | |
153 | ||
154 | static | |
155 | int mxl1x1sf_demod_get_tps_guard_interval(struct mxl111sf_demod_state *state, | |
0df289a2 | 156 | enum fe_guard_interval *guard) |
e92f9a56 MK |
157 | { |
158 | u8 val; | |
159 | int ret = mxl111sf_demod_read_reg(state, V6_CP_TPS_REG, &val); | |
160 | /* 00:1/32, 01:1/16, 10:1/8, 11:1/4 */ | |
161 | if (mxl_fail(ret)) | |
162 | goto fail; | |
163 | ||
164 | switch ((val & V6_PARAM_GI_MASK) >> 4) { | |
165 | case 0: | |
166 | *guard = GUARD_INTERVAL_1_32; | |
167 | break; | |
168 | case 1: | |
169 | *guard = GUARD_INTERVAL_1_16; | |
170 | break; | |
171 | case 2: | |
172 | *guard = GUARD_INTERVAL_1_8; | |
173 | break; | |
174 | case 3: | |
175 | *guard = GUARD_INTERVAL_1_4; | |
176 | break; | |
177 | } | |
178 | fail: | |
179 | return ret; | |
180 | } | |
181 | ||
182 | static | |
183 | int mxl1x1sf_demod_get_tps_hierarchy(struct mxl111sf_demod_state *state, | |
0df289a2 | 184 | enum fe_hierarchy *hierarchy) |
e92f9a56 MK |
185 | { |
186 | u8 val; | |
187 | int ret = mxl111sf_demod_read_reg(state, V6_TPS_HIERACHY_REG, &val); | |
188 | /* bit<6:4> - 000:Non hierarchy, 001:1, 010:2, 011:4 */ | |
189 | if (mxl_fail(ret)) | |
190 | goto fail; | |
191 | ||
192 | switch ((val & V6_TPS_HIERARCHY_INFO_MASK) >> 6) { | |
193 | case 0: | |
194 | *hierarchy = HIERARCHY_NONE; | |
195 | break; | |
196 | case 1: | |
197 | *hierarchy = HIERARCHY_1; | |
198 | break; | |
199 | case 2: | |
200 | *hierarchy = HIERARCHY_2; | |
201 | break; | |
202 | case 3: | |
203 | *hierarchy = HIERARCHY_4; | |
204 | break; | |
205 | } | |
206 | fail: | |
207 | return ret; | |
208 | } | |
209 | ||
210 | /* ------------------------------------------------------------------------ */ | |
211 | /* LOCKS */ | |
212 | ||
213 | static | |
214 | int mxl1x1sf_demod_get_sync_lock_status(struct mxl111sf_demod_state *state, | |
215 | int *sync_lock) | |
216 | { | |
217 | u8 val = 0; | |
218 | int ret = mxl111sf_demod_read_reg(state, V6_SYNC_LOCK_REG, &val); | |
219 | if (mxl_fail(ret)) | |
220 | goto fail; | |
221 | *sync_lock = (val & SYNC_LOCK_MASK) >> 4; | |
222 | fail: | |
223 | return ret; | |
224 | } | |
225 | ||
226 | static | |
227 | int mxl1x1sf_demod_get_rs_lock_status(struct mxl111sf_demod_state *state, | |
228 | int *rs_lock) | |
229 | { | |
230 | u8 val = 0; | |
231 | int ret = mxl111sf_demod_read_reg(state, V6_RS_LOCK_DET_REG, &val); | |
232 | if (mxl_fail(ret)) | |
233 | goto fail; | |
234 | *rs_lock = (val & RS_LOCK_DET_MASK) >> 3; | |
235 | fail: | |
236 | return ret; | |
237 | } | |
238 | ||
239 | static | |
240 | int mxl1x1sf_demod_get_tps_lock_status(struct mxl111sf_demod_state *state, | |
241 | int *tps_lock) | |
242 | { | |
243 | u8 val = 0; | |
244 | int ret = mxl111sf_demod_read_reg(state, V6_TPS_LOCK_REG, &val); | |
245 | if (mxl_fail(ret)) | |
246 | goto fail; | |
247 | *tps_lock = (val & V6_PARAM_TPS_LOCK_MASK) >> 6; | |
248 | fail: | |
249 | return ret; | |
250 | } | |
251 | ||
252 | static | |
253 | int mxl1x1sf_demod_get_fec_lock_status(struct mxl111sf_demod_state *state, | |
254 | int *fec_lock) | |
255 | { | |
256 | u8 val = 0; | |
257 | int ret = mxl111sf_demod_read_reg(state, V6_IRQ_STATUS_REG, &val); | |
258 | if (mxl_fail(ret)) | |
259 | goto fail; | |
260 | *fec_lock = (val & IRQ_MASK_FEC_LOCK) >> 4; | |
261 | fail: | |
262 | return ret; | |
263 | } | |
264 | ||
265 | #if 0 | |
266 | static | |
267 | int mxl1x1sf_demod_get_cp_lock_status(struct mxl111sf_demod_state *state, | |
268 | int *cp_lock) | |
269 | { | |
270 | u8 val = 0; | |
271 | int ret = mxl111sf_demod_read_reg(state, V6_CP_LOCK_DET_REG, &val); | |
272 | if (mxl_fail(ret)) | |
273 | goto fail; | |
274 | *cp_lock = (val & V6_CP_LOCK_DET_MASK) >> 2; | |
275 | fail: | |
276 | return ret; | |
277 | } | |
278 | #endif | |
279 | ||
280 | static int mxl1x1sf_demod_reset_irq_status(struct mxl111sf_demod_state *state) | |
281 | { | |
282 | return mxl111sf_demod_write_reg(state, 0x0e, 0xff); | |
283 | } | |
284 | ||
285 | /* ------------------------------------------------------------------------ */ | |
286 | ||
531157b3 | 287 | static int mxl111sf_demod_set_frontend(struct dvb_frontend *fe) |
e92f9a56 MK |
288 | { |
289 | struct mxl111sf_demod_state *state = fe->demodulator_priv; | |
290 | int ret = 0; | |
291 | ||
292 | struct mxl111sf_reg_ctrl_info phy_pll_patch[] = { | |
293 | {0x00, 0xff, 0x01}, /* change page to 1 */ | |
294 | {0x40, 0xff, 0x05}, | |
295 | {0x40, 0xff, 0x01}, | |
296 | {0x41, 0xff, 0xca}, | |
297 | {0x41, 0xff, 0xc0}, | |
298 | {0x00, 0xff, 0x00}, /* change page to 0 */ | |
299 | {0, 0, 0} | |
300 | }; | |
301 | ||
302 | mxl_dbg("()"); | |
303 | ||
304 | if (fe->ops.tuner_ops.set_params) { | |
14d24d14 | 305 | ret = fe->ops.tuner_ops.set_params(fe); |
e92f9a56 MK |
306 | if (mxl_fail(ret)) |
307 | goto fail; | |
308 | msleep(50); | |
309 | } | |
310 | ret = mxl111sf_demod_program_regs(state, phy_pll_patch); | |
311 | mxl_fail(ret); | |
312 | msleep(50); | |
313 | ret = mxl1x1sf_demod_reset_irq_status(state); | |
314 | mxl_fail(ret); | |
315 | msleep(100); | |
316 | fail: | |
317 | return ret; | |
318 | } | |
319 | ||
320 | /* ------------------------------------------------------------------------ */ | |
321 | ||
322 | #if 0 | |
323 | /* resets TS Packet error count */ | |
324 | /* After setting 7th bit of V5_PER_COUNT_RESET_REG, it should be reset to 0. */ | |
325 | static | |
326 | int mxl1x1sf_demod_reset_packet_error_count(struct mxl111sf_demod_state *state) | |
327 | { | |
328 | struct mxl111sf_reg_ctrl_info reset_per_count[] = { | |
329 | {0x20, 0x01, 0x01}, | |
330 | {0x20, 0x01, 0x00}, | |
331 | {0, 0, 0} | |
332 | }; | |
333 | return mxl111sf_demod_program_regs(state, reset_per_count); | |
334 | } | |
335 | #endif | |
336 | ||
337 | /* returns TS Packet error count */ | |
338 | /* PER Count = FEC_PER_COUNT * (2 ** (FEC_PER_SCALE * 4)) */ | |
339 | static int mxl111sf_demod_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) | |
340 | { | |
341 | struct mxl111sf_demod_state *state = fe->demodulator_priv; | |
342 | u32 fec_per_count, fec_per_scale; | |
343 | u8 val; | |
344 | int ret; | |
345 | ||
346 | *ucblocks = 0; | |
347 | ||
348 | /* FEC_PER_COUNT Register */ | |
349 | ret = mxl111sf_demod_read_reg(state, V6_FEC_PER_COUNT_REG, &val); | |
350 | if (mxl_fail(ret)) | |
351 | goto fail; | |
352 | ||
353 | fec_per_count = val; | |
354 | ||
355 | /* FEC_PER_SCALE Register */ | |
356 | ret = mxl111sf_demod_read_reg(state, V6_FEC_PER_SCALE_REG, &val); | |
357 | if (mxl_fail(ret)) | |
358 | goto fail; | |
359 | ||
360 | val &= V6_FEC_PER_SCALE_MASK; | |
361 | val *= 4; | |
362 | ||
363 | fec_per_scale = 1 << val; | |
364 | ||
365 | fec_per_count *= fec_per_scale; | |
366 | ||
367 | *ucblocks = fec_per_count; | |
368 | fail: | |
369 | return ret; | |
370 | } | |
371 | ||
7e8d8f6d MK |
372 | #ifdef MXL111SF_DEMOD_ENABLE_CALCULATIONS |
373 | /* FIXME: leaving this enabled breaks the build on some architectures, | |
374 | * and we shouldn't have any floating point math in the kernel, anyway. | |
375 | * | |
376 | * These macros need to be re-written, but it's harmless to simply | |
377 | * return zero for now. */ | |
e92f9a56 MK |
378 | #define CALCULATE_BER(avg_errors, count) \ |
379 | ((u32)(avg_errors * 4)/(count*64*188*8)) | |
380 | #define CALCULATE_SNR(data) \ | |
381 | ((u32)((10 * (u32)data / 64) - 2.5)) | |
7e8d8f6d MK |
382 | #else |
383 | #define CALCULATE_BER(avg_errors, count) 0 | |
384 | #define CALCULATE_SNR(data) 0 | |
385 | #endif | |
e92f9a56 MK |
386 | |
387 | static int mxl111sf_demod_read_ber(struct dvb_frontend *fe, u32 *ber) | |
388 | { | |
389 | struct mxl111sf_demod_state *state = fe->demodulator_priv; | |
390 | u8 val1, val2, val3; | |
391 | int ret; | |
392 | ||
393 | *ber = 0; | |
394 | ||
395 | ret = mxl111sf_demod_read_reg(state, V6_RS_AVG_ERRORS_LSB_REG, &val1); | |
396 | if (mxl_fail(ret)) | |
397 | goto fail; | |
398 | ret = mxl111sf_demod_read_reg(state, V6_RS_AVG_ERRORS_MSB_REG, &val2); | |
399 | if (mxl_fail(ret)) | |
400 | goto fail; | |
401 | ret = mxl111sf_demod_read_reg(state, V6_N_ACCUMULATE_REG, &val3); | |
402 | if (mxl_fail(ret)) | |
403 | goto fail; | |
404 | ||
405 | *ber = CALCULATE_BER((val1 | (val2 << 8)), val3); | |
406 | fail: | |
407 | return ret; | |
408 | } | |
409 | ||
410 | static int mxl111sf_demod_calc_snr(struct mxl111sf_demod_state *state, | |
411 | u16 *snr) | |
412 | { | |
413 | u8 val1, val2; | |
414 | int ret; | |
415 | ||
416 | *snr = 0; | |
417 | ||
418 | ret = mxl111sf_demod_read_reg(state, V6_SNR_RB_LSB_REG, &val1); | |
419 | if (mxl_fail(ret)) | |
420 | goto fail; | |
421 | ret = mxl111sf_demod_read_reg(state, V6_SNR_RB_MSB_REG, &val2); | |
422 | if (mxl_fail(ret)) | |
423 | goto fail; | |
424 | ||
425 | *snr = CALCULATE_SNR(val1 | ((val2 & 0x03) << 8)); | |
426 | fail: | |
427 | return ret; | |
428 | } | |
429 | ||
430 | static int mxl111sf_demod_read_snr(struct dvb_frontend *fe, u16 *snr) | |
431 | { | |
432 | struct mxl111sf_demod_state *state = fe->demodulator_priv; | |
433 | ||
434 | int ret = mxl111sf_demod_calc_snr(state, snr); | |
435 | if (mxl_fail(ret)) | |
436 | goto fail; | |
437 | ||
438 | *snr /= 10; /* 0.1 dB */ | |
439 | fail: | |
440 | return ret; | |
441 | } | |
442 | ||
443 | static int mxl111sf_demod_read_status(struct dvb_frontend *fe, | |
0df289a2 | 444 | enum fe_status *status) |
e92f9a56 MK |
445 | { |
446 | struct mxl111sf_demod_state *state = fe->demodulator_priv; | |
447 | int ret, locked, cr_lock, sync_lock, fec_lock; | |
448 | ||
449 | *status = 0; | |
450 | ||
451 | ret = mxl1x1sf_demod_get_rs_lock_status(state, &locked); | |
452 | if (mxl_fail(ret)) | |
453 | goto fail; | |
454 | ret = mxl1x1sf_demod_get_tps_lock_status(state, &cr_lock); | |
455 | if (mxl_fail(ret)) | |
456 | goto fail; | |
457 | ret = mxl1x1sf_demod_get_sync_lock_status(state, &sync_lock); | |
458 | if (mxl_fail(ret)) | |
459 | goto fail; | |
460 | ret = mxl1x1sf_demod_get_fec_lock_status(state, &fec_lock); | |
461 | if (mxl_fail(ret)) | |
462 | goto fail; | |
463 | ||
464 | if (locked) | |
465 | *status |= FE_HAS_SIGNAL; | |
466 | if (cr_lock) | |
467 | *status |= FE_HAS_CARRIER; | |
468 | if (sync_lock) | |
469 | *status |= FE_HAS_SYNC; | |
470 | if (fec_lock) /* false positives? */ | |
471 | *status |= FE_HAS_VITERBI; | |
472 | ||
473 | if ((locked) && (cr_lock) && (sync_lock)) | |
474 | *status |= FE_HAS_LOCK; | |
475 | fail: | |
476 | return ret; | |
477 | } | |
478 | ||
479 | static int mxl111sf_demod_read_signal_strength(struct dvb_frontend *fe, | |
480 | u16 *signal_strength) | |
481 | { | |
482 | struct mxl111sf_demod_state *state = fe->demodulator_priv; | |
0df289a2 | 483 | enum fe_modulation modulation; |
e92f9a56 MK |
484 | u16 snr; |
485 | ||
486 | mxl111sf_demod_calc_snr(state, &snr); | |
531157b3 | 487 | mxl1x1sf_demod_get_tps_modulation(state, &modulation); |
e92f9a56 | 488 | |
531157b3 | 489 | switch (modulation) { |
e92f9a56 MK |
490 | case QPSK: |
491 | *signal_strength = (snr >= 1300) ? | |
492 | min(65535, snr * 44) : snr * 38; | |
493 | break; | |
494 | case QAM_16: | |
495 | *signal_strength = (snr >= 1500) ? | |
496 | min(65535, snr * 38) : snr * 33; | |
497 | break; | |
498 | case QAM_64: | |
499 | *signal_strength = (snr >= 2000) ? | |
500 | min(65535, snr * 29) : snr * 25; | |
501 | break; | |
502 | default: | |
503 | *signal_strength = 0; | |
504 | return -EINVAL; | |
505 | } | |
506 | ||
507 | return 0; | |
508 | } | |
509 | ||
7c61d80a | 510 | static int mxl111sf_demod_get_frontend(struct dvb_frontend *fe) |
e92f9a56 | 511 | { |
7c61d80a | 512 | struct dtv_frontend_properties *p = &fe->dtv_property_cache; |
e92f9a56 MK |
513 | struct mxl111sf_demod_state *state = fe->demodulator_priv; |
514 | ||
515 | mxl_dbg("()"); | |
516 | #if 0 | |
517 | p->inversion = /* FIXME */ ? INVERSION_ON : INVERSION_OFF; | |
518 | #endif | |
519 | if (fe->ops.tuner_ops.get_bandwidth) | |
531157b3 | 520 | fe->ops.tuner_ops.get_bandwidth(fe, &p->bandwidth_hz); |
e92f9a56 MK |
521 | if (fe->ops.tuner_ops.get_frequency) |
522 | fe->ops.tuner_ops.get_frequency(fe, &p->frequency); | |
531157b3 MCC |
523 | mxl1x1sf_demod_get_tps_code_rate(state, &p->code_rate_HP); |
524 | mxl1x1sf_demod_get_tps_code_rate(state, &p->code_rate_LP); | |
525 | mxl1x1sf_demod_get_tps_modulation(state, &p->modulation); | |
e92f9a56 | 526 | mxl1x1sf_demod_get_tps_guard_fft_mode(state, |
531157b3 | 527 | &p->transmission_mode); |
e92f9a56 | 528 | mxl1x1sf_demod_get_tps_guard_interval(state, |
531157b3 | 529 | &p->guard_interval); |
e92f9a56 | 530 | mxl1x1sf_demod_get_tps_hierarchy(state, |
531157b3 | 531 | &p->hierarchy); |
e92f9a56 MK |
532 | |
533 | return 0; | |
534 | } | |
535 | ||
536 | static | |
537 | int mxl111sf_demod_get_tune_settings(struct dvb_frontend *fe, | |
538 | struct dvb_frontend_tune_settings *tune) | |
539 | { | |
540 | tune->min_delay_ms = 1000; | |
541 | return 0; | |
542 | } | |
543 | ||
544 | static void mxl111sf_demod_release(struct dvb_frontend *fe) | |
545 | { | |
546 | struct mxl111sf_demod_state *state = fe->demodulator_priv; | |
547 | mxl_dbg("()"); | |
548 | kfree(state); | |
549 | fe->demodulator_priv = NULL; | |
550 | } | |
551 | ||
552 | static struct dvb_frontend_ops mxl111sf_demod_ops = { | |
531157b3 | 553 | .delsys = { SYS_DVBT }, |
e92f9a56 | 554 | .info = { |
539b4695 | 555 | .name = "MaxLinear MxL111SF DVB-T demodulator", |
539b4695 MK |
556 | .frequency_min = 177000000, |
557 | .frequency_max = 858000000, | |
558 | .frequency_stepsize = 166666, | |
e92f9a56 MK |
559 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | |
560 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | |
561 | FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | | |
562 | FE_CAN_QAM_AUTO | | |
563 | FE_CAN_HIERARCHY_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | | |
564 | FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_RECOVER | |
565 | }, | |
566 | .release = mxl111sf_demod_release, | |
567 | #if 0 | |
568 | .init = mxl111sf_init, | |
569 | .i2c_gate_ctrl = mxl111sf_i2c_gate_ctrl, | |
570 | #endif | |
531157b3 MCC |
571 | .set_frontend = mxl111sf_demod_set_frontend, |
572 | .get_frontend = mxl111sf_demod_get_frontend, | |
e92f9a56 MK |
573 | .get_tune_settings = mxl111sf_demod_get_tune_settings, |
574 | .read_status = mxl111sf_demod_read_status, | |
575 | .read_signal_strength = mxl111sf_demod_read_signal_strength, | |
576 | .read_ber = mxl111sf_demod_read_ber, | |
577 | .read_snr = mxl111sf_demod_read_snr, | |
578 | .read_ucblocks = mxl111sf_demod_read_ucblocks, | |
579 | }; | |
580 | ||
581 | struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state, | |
9c5e44a0 | 582 | const struct mxl111sf_demod_config *cfg) |
e92f9a56 MK |
583 | { |
584 | struct mxl111sf_demod_state *state = NULL; | |
585 | ||
586 | mxl_dbg("()"); | |
587 | ||
588 | state = kzalloc(sizeof(struct mxl111sf_demod_state), GFP_KERNEL); | |
589 | if (state == NULL) | |
590 | return NULL; | |
591 | ||
592 | state->mxl_state = mxl_state; | |
593 | state->cfg = cfg; | |
594 | ||
595 | memcpy(&state->fe.ops, &mxl111sf_demod_ops, | |
596 | sizeof(struct dvb_frontend_ops)); | |
597 | ||
598 | state->fe.demodulator_priv = state; | |
599 | return &state->fe; | |
600 | } | |
601 | EXPORT_SYMBOL_GPL(mxl111sf_demod_attach); | |
602 | ||
603 | MODULE_DESCRIPTION("MaxLinear MxL111SF DVB-T demodulator driver"); | |
08e10972 | 604 | MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>"); |
e92f9a56 MK |
605 | MODULE_LICENSE("GPL"); |
606 | MODULE_VERSION("0.1"); |