Commit | Line | Data |
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27cfc85e AP |
1 | /* |
2 | * Sony CXD2820R demodulator driver | |
3 | * | |
4 | * Copyright (C) 2010 Antti Palosaari <crope@iki.fi> | |
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 along | |
17 | * with this program; if not, write to the Free Software Foundation, Inc., | |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
19 | */ | |
20 | ||
21 | ||
9ac51c5e SK |
22 | #include "cxd2820r_priv.h" |
23 | ||
24 | int cxd2820r_set_frontend_t(struct dvb_frontend *fe, | |
14c03862 | 25 | struct dvb_frontend_parameters *p) |
27cfc85e AP |
26 | { |
27 | struct cxd2820r_priv *priv = fe->demodulator_priv; | |
28 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
13d723ba | 29 | int ret, i, bw_i; |
fda23faa | 30 | u32 if_freq, if_ctl; |
27cfc85e AP |
31 | u64 num; |
32 | u8 buf[3], bw_param; | |
33 | u8 bw_params1[][5] = { | |
34 | { 0x17, 0xea, 0xaa, 0xaa, 0xaa }, /* 6 MHz */ | |
35 | { 0x14, 0x80, 0x00, 0x00, 0x00 }, /* 7 MHz */ | |
36 | { 0x11, 0xf0, 0x00, 0x00, 0x00 }, /* 8 MHz */ | |
37 | }; | |
38 | u8 bw_params2[][2] = { | |
39 | { 0x1f, 0xdc }, /* 6 MHz */ | |
40 | { 0x12, 0xf8 }, /* 7 MHz */ | |
41 | { 0x01, 0xe0 }, /* 8 MHz */ | |
42 | }; | |
43 | struct reg_val_mask tab[] = { | |
44 | { 0x00080, 0x00, 0xff }, | |
45 | { 0x00081, 0x03, 0xff }, | |
46 | { 0x00085, 0x07, 0xff }, | |
47 | { 0x00088, 0x01, 0xff }, | |
48 | ||
49 | { 0x00070, priv->cfg.ts_mode, 0xff }, | |
50 | { 0x000cb, priv->cfg.if_agc_polarity << 6, 0x40 }, | |
51 | { 0x000a5, 0x00, 0x01 }, | |
52 | { 0x00082, 0x20, 0x60 }, | |
53 | { 0x000c2, 0xc3, 0xff }, | |
54 | { 0x0016a, 0x50, 0xff }, | |
55 | { 0x00427, 0x41, 0xff }, | |
56 | }; | |
57 | ||
58 | dbg("%s: RF=%d BW=%d", __func__, c->frequency, c->bandwidth_hz); | |
59 | ||
13d723ba AP |
60 | switch (c->bandwidth_hz) { |
61 | case 6000000: | |
62 | bw_i = 0; | |
63 | bw_param = 2; | |
64 | break; | |
65 | case 7000000: | |
66 | bw_i = 1; | |
67 | bw_param = 1; | |
68 | break; | |
69 | case 8000000: | |
70 | bw_i = 2; | |
71 | bw_param = 0; | |
72 | break; | |
73 | default: | |
74 | return -EINVAL; | |
75 | } | |
76 | ||
27cfc85e AP |
77 | /* update GPIOs */ |
78 | ret = cxd2820r_gpio(fe); | |
79 | if (ret) | |
80 | goto error; | |
81 | ||
82 | /* program tuner */ | |
83 | if (fe->ops.tuner_ops.set_params) | |
14d24d14 | 84 | fe->ops.tuner_ops.set_params(fe); |
27cfc85e AP |
85 | |
86 | if (priv->delivery_system != SYS_DVBT) { | |
87 | for (i = 0; i < ARRAY_SIZE(tab); i++) { | |
88 | ret = cxd2820r_wr_reg_mask(priv, tab[i].reg, | |
89 | tab[i].val, tab[i].mask); | |
90 | if (ret) | |
91 | goto error; | |
92 | } | |
93 | } | |
94 | ||
95 | priv->delivery_system = SYS_DVBT; | |
96 | priv->ber_running = 0; /* tune stops BER counter */ | |
97 | ||
fda23faa AP |
98 | /* program IF frequency */ |
99 | if (fe->ops.tuner_ops.get_if_frequency) { | |
100 | ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_freq); | |
101 | if (ret) | |
102 | goto error; | |
103 | } else | |
104 | if_freq = 0; | |
105 | ||
106 | dbg("%s: if_freq=%d", __func__, if_freq); | |
107 | ||
108 | num = if_freq / 1000; /* Hz => kHz */ | |
27cfc85e AP |
109 | num *= 0x1000000; |
110 | if_ctl = cxd2820r_div_u64_round_closest(num, 41000); | |
111 | buf[0] = ((if_ctl >> 16) & 0xff); | |
112 | buf[1] = ((if_ctl >> 8) & 0xff); | |
113 | buf[2] = ((if_ctl >> 0) & 0xff); | |
114 | ||
115 | ret = cxd2820r_wr_regs(priv, 0x000b6, buf, 3); | |
116 | if (ret) | |
117 | goto error; | |
118 | ||
13d723ba | 119 | ret = cxd2820r_wr_regs(priv, 0x0009f, bw_params1[bw_i], 5); |
27cfc85e AP |
120 | if (ret) |
121 | goto error; | |
122 | ||
123 | ret = cxd2820r_wr_reg_mask(priv, 0x000d7, bw_param << 6, 0xc0); | |
124 | if (ret) | |
125 | goto error; | |
126 | ||
13d723ba | 127 | ret = cxd2820r_wr_regs(priv, 0x000d9, bw_params2[bw_i], 2); |
27cfc85e AP |
128 | if (ret) |
129 | goto error; | |
130 | ||
131 | ret = cxd2820r_wr_reg(priv, 0x000ff, 0x08); | |
132 | if (ret) | |
133 | goto error; | |
134 | ||
135 | ret = cxd2820r_wr_reg(priv, 0x000fe, 0x01); | |
136 | if (ret) | |
137 | goto error; | |
138 | ||
139 | return ret; | |
140 | error: | |
141 | dbg("%s: failed:%d", __func__, ret); | |
142 | return ret; | |
143 | } | |
144 | ||
9ac51c5e | 145 | int cxd2820r_get_frontend_t(struct dvb_frontend *fe, |
27cfc85e AP |
146 | struct dvb_frontend_parameters *p) |
147 | { | |
148 | struct cxd2820r_priv *priv = fe->demodulator_priv; | |
149 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
150 | int ret; | |
151 | u8 buf[2]; | |
152 | ||
153 | ret = cxd2820r_rd_regs(priv, 0x0002f, buf, sizeof(buf)); | |
154 | if (ret) | |
155 | goto error; | |
156 | ||
157 | switch ((buf[0] >> 6) & 0x03) { | |
158 | case 0: | |
159 | c->modulation = QPSK; | |
160 | break; | |
161 | case 1: | |
162 | c->modulation = QAM_16; | |
163 | break; | |
164 | case 2: | |
165 | c->modulation = QAM_64; | |
166 | break; | |
167 | } | |
168 | ||
169 | switch ((buf[1] >> 1) & 0x03) { | |
170 | case 0: | |
171 | c->transmission_mode = TRANSMISSION_MODE_2K; | |
172 | break; | |
173 | case 1: | |
174 | c->transmission_mode = TRANSMISSION_MODE_8K; | |
175 | break; | |
176 | } | |
177 | ||
178 | switch ((buf[1] >> 3) & 0x03) { | |
179 | case 0: | |
180 | c->guard_interval = GUARD_INTERVAL_1_32; | |
181 | break; | |
182 | case 1: | |
183 | c->guard_interval = GUARD_INTERVAL_1_16; | |
184 | break; | |
185 | case 2: | |
186 | c->guard_interval = GUARD_INTERVAL_1_8; | |
187 | break; | |
188 | case 3: | |
189 | c->guard_interval = GUARD_INTERVAL_1_4; | |
190 | break; | |
191 | } | |
192 | ||
193 | switch ((buf[0] >> 3) & 0x07) { | |
194 | case 0: | |
195 | c->hierarchy = HIERARCHY_NONE; | |
196 | break; | |
197 | case 1: | |
198 | c->hierarchy = HIERARCHY_1; | |
199 | break; | |
200 | case 2: | |
201 | c->hierarchy = HIERARCHY_2; | |
202 | break; | |
203 | case 3: | |
204 | c->hierarchy = HIERARCHY_4; | |
205 | break; | |
206 | } | |
207 | ||
208 | switch ((buf[0] >> 0) & 0x07) { | |
209 | case 0: | |
210 | c->code_rate_HP = FEC_1_2; | |
211 | break; | |
212 | case 1: | |
213 | c->code_rate_HP = FEC_2_3; | |
214 | break; | |
215 | case 2: | |
216 | c->code_rate_HP = FEC_3_4; | |
217 | break; | |
218 | case 3: | |
219 | c->code_rate_HP = FEC_5_6; | |
220 | break; | |
221 | case 4: | |
222 | c->code_rate_HP = FEC_7_8; | |
223 | break; | |
224 | } | |
225 | ||
226 | switch ((buf[1] >> 5) & 0x07) { | |
227 | case 0: | |
228 | c->code_rate_LP = FEC_1_2; | |
229 | break; | |
230 | case 1: | |
231 | c->code_rate_LP = FEC_2_3; | |
232 | break; | |
233 | case 2: | |
234 | c->code_rate_LP = FEC_3_4; | |
235 | break; | |
236 | case 3: | |
237 | c->code_rate_LP = FEC_5_6; | |
238 | break; | |
239 | case 4: | |
240 | c->code_rate_LP = FEC_7_8; | |
241 | break; | |
242 | } | |
243 | ||
244 | ret = cxd2820r_rd_reg(priv, 0x007c6, &buf[0]); | |
245 | if (ret) | |
246 | goto error; | |
247 | ||
248 | switch ((buf[0] >> 0) & 0x01) { | |
249 | case 0: | |
250 | c->inversion = INVERSION_OFF; | |
251 | break; | |
252 | case 1: | |
253 | c->inversion = INVERSION_ON; | |
254 | break; | |
255 | } | |
256 | ||
257 | return ret; | |
258 | error: | |
259 | dbg("%s: failed:%d", __func__, ret); | |
260 | return ret; | |
261 | } | |
262 | ||
9ac51c5e | 263 | int cxd2820r_read_ber_t(struct dvb_frontend *fe, u32 *ber) |
27cfc85e AP |
264 | { |
265 | struct cxd2820r_priv *priv = fe->demodulator_priv; | |
266 | int ret; | |
267 | u8 buf[3], start_ber = 0; | |
268 | *ber = 0; | |
269 | ||
270 | if (priv->ber_running) { | |
271 | ret = cxd2820r_rd_regs(priv, 0x00076, buf, sizeof(buf)); | |
272 | if (ret) | |
273 | goto error; | |
274 | ||
275 | if ((buf[2] >> 7) & 0x01 || (buf[2] >> 4) & 0x01) { | |
276 | *ber = (buf[2] & 0x0f) << 16 | buf[1] << 8 | buf[0]; | |
277 | start_ber = 1; | |
278 | } | |
279 | } else { | |
280 | priv->ber_running = 1; | |
281 | start_ber = 1; | |
282 | } | |
283 | ||
284 | if (start_ber) { | |
285 | /* (re)start BER */ | |
286 | ret = cxd2820r_wr_reg(priv, 0x00079, 0x01); | |
287 | if (ret) | |
288 | goto error; | |
289 | } | |
290 | ||
291 | return ret; | |
292 | error: | |
293 | dbg("%s: failed:%d", __func__, ret); | |
294 | return ret; | |
295 | } | |
296 | ||
9ac51c5e | 297 | int cxd2820r_read_signal_strength_t(struct dvb_frontend *fe, |
27cfc85e AP |
298 | u16 *strength) |
299 | { | |
300 | struct cxd2820r_priv *priv = fe->demodulator_priv; | |
301 | int ret; | |
302 | u8 buf[2]; | |
303 | u16 tmp; | |
304 | ||
305 | ret = cxd2820r_rd_regs(priv, 0x00026, buf, sizeof(buf)); | |
306 | if (ret) | |
307 | goto error; | |
308 | ||
309 | tmp = (buf[0] & 0x0f) << 8 | buf[1]; | |
310 | tmp = ~tmp & 0x0fff; | |
311 | ||
312 | /* scale value to 0x0000-0xffff from 0x0000-0x0fff */ | |
313 | *strength = tmp * 0xffff / 0x0fff; | |
314 | ||
315 | return ret; | |
316 | error: | |
317 | dbg("%s: failed:%d", __func__, ret); | |
318 | return ret; | |
319 | } | |
320 | ||
9ac51c5e | 321 | int cxd2820r_read_snr_t(struct dvb_frontend *fe, u16 *snr) |
27cfc85e AP |
322 | { |
323 | struct cxd2820r_priv *priv = fe->demodulator_priv; | |
324 | int ret; | |
325 | u8 buf[2]; | |
326 | u16 tmp; | |
327 | /* report SNR in dB * 10 */ | |
328 | ||
329 | ret = cxd2820r_rd_regs(priv, 0x00028, buf, sizeof(buf)); | |
330 | if (ret) | |
331 | goto error; | |
332 | ||
333 | tmp = (buf[0] & 0x1f) << 8 | buf[1]; | |
334 | #define CXD2820R_LOG10_8_24 15151336 /* log10(8) << 24 */ | |
335 | if (tmp) | |
336 | *snr = (intlog10(tmp) - CXD2820R_LOG10_8_24) / ((1 << 24) | |
337 | / 100); | |
338 | else | |
339 | *snr = 0; | |
340 | ||
341 | dbg("%s: dBx10=%d val=%04x", __func__, *snr, tmp); | |
342 | ||
343 | return ret; | |
344 | error: | |
345 | dbg("%s: failed:%d", __func__, ret); | |
346 | return ret; | |
347 | } | |
348 | ||
9ac51c5e | 349 | int cxd2820r_read_ucblocks_t(struct dvb_frontend *fe, u32 *ucblocks) |
27cfc85e AP |
350 | { |
351 | *ucblocks = 0; | |
352 | /* no way to read ? */ | |
353 | return 0; | |
354 | } | |
355 | ||
9ac51c5e | 356 | int cxd2820r_read_status_t(struct dvb_frontend *fe, fe_status_t *status) |
27cfc85e AP |
357 | { |
358 | struct cxd2820r_priv *priv = fe->demodulator_priv; | |
359 | int ret; | |
360 | u8 buf[4]; | |
361 | *status = 0; | |
362 | ||
363 | ret = cxd2820r_rd_reg(priv, 0x00010, &buf[0]); | |
364 | if (ret) | |
365 | goto error; | |
366 | ||
367 | if ((buf[0] & 0x07) == 6) { | |
368 | ret = cxd2820r_rd_reg(priv, 0x00073, &buf[1]); | |
369 | if (ret) | |
370 | goto error; | |
371 | ||
372 | if (((buf[1] >> 3) & 0x01) == 1) { | |
373 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | | |
374 | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; | |
375 | } else { | |
376 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | | |
377 | FE_HAS_VITERBI | FE_HAS_SYNC; | |
378 | } | |
379 | } else { | |
380 | ret = cxd2820r_rd_reg(priv, 0x00014, &buf[2]); | |
381 | if (ret) | |
382 | goto error; | |
383 | ||
384 | if ((buf[2] & 0x0f) >= 4) { | |
385 | ret = cxd2820r_rd_reg(priv, 0x00a14, &buf[3]); | |
386 | if (ret) | |
387 | goto error; | |
388 | ||
389 | if (((buf[3] >> 4) & 0x01) == 1) | |
390 | *status |= FE_HAS_SIGNAL; | |
391 | } | |
392 | } | |
393 | ||
394 | dbg("%s: lock=%02x %02x %02x %02x", __func__, | |
395 | buf[0], buf[1], buf[2], buf[3]); | |
396 | ||
397 | return ret; | |
398 | error: | |
399 | dbg("%s: failed:%d", __func__, ret); | |
400 | return ret; | |
401 | } | |
402 | ||
9ac51c5e | 403 | int cxd2820r_init_t(struct dvb_frontend *fe) |
27cfc85e AP |
404 | { |
405 | struct cxd2820r_priv *priv = fe->demodulator_priv; | |
406 | int ret; | |
407 | ||
408 | ret = cxd2820r_wr_reg(priv, 0x00085, 0x07); | |
409 | if (ret) | |
410 | goto error; | |
411 | ||
412 | return ret; | |
413 | error: | |
414 | dbg("%s: failed:%d", __func__, ret); | |
415 | return ret; | |
416 | } | |
417 | ||
9ac51c5e | 418 | int cxd2820r_sleep_t(struct dvb_frontend *fe) |
27cfc85e AP |
419 | { |
420 | struct cxd2820r_priv *priv = fe->demodulator_priv; | |
421 | int ret, i; | |
422 | struct reg_val_mask tab[] = { | |
423 | { 0x000ff, 0x1f, 0xff }, | |
424 | { 0x00085, 0x00, 0xff }, | |
425 | { 0x00088, 0x01, 0xff }, | |
426 | { 0x00081, 0x00, 0xff }, | |
427 | { 0x00080, 0x00, 0xff }, | |
428 | }; | |
429 | ||
430 | dbg("%s", __func__); | |
431 | ||
432 | priv->delivery_system = SYS_UNDEFINED; | |
433 | ||
434 | for (i = 0; i < ARRAY_SIZE(tab); i++) { | |
435 | ret = cxd2820r_wr_reg_mask(priv, tab[i].reg, tab[i].val, | |
436 | tab[i].mask); | |
437 | if (ret) | |
438 | goto error; | |
439 | } | |
440 | ||
441 | return ret; | |
442 | error: | |
443 | dbg("%s: failed:%d", __func__, ret); | |
444 | return ret; | |
445 | } | |
446 | ||
9ac51c5e | 447 | int cxd2820r_get_tune_settings_t(struct dvb_frontend *fe, |
27cfc85e AP |
448 | struct dvb_frontend_tune_settings *s) |
449 | { | |
450 | s->min_delay_ms = 500; | |
451 | s->step_size = fe->ops.info.frequency_stepsize * 2; | |
452 | s->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
453 | ||
454 | return 0; | |
455 | } |