Commit | Line | Data |
---|---|---|
825b9670 | 1 | /* |
c89f66f6 | 2 | * Afatech AF9013 demodulator driver |
825b9670 AP |
3 | * |
4 | * Copyright (C) 2007 Antti Palosaari <crope@iki.fi> | |
5 | * | |
6 | * Thanks to Afatech who kindly provided information. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/kernel.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/string.h> | |
30 | #include <linux/slab.h> | |
31 | #include <linux/firmware.h> | |
32 | ||
33 | #include "dvb_frontend.h" | |
34 | #include "af9013_priv.h" | |
35 | #include "af9013.h" | |
36 | ||
37 | int af9013_debug; | |
38 | ||
39 | struct af9013_state { | |
40 | struct i2c_adapter *i2c; | |
41 | struct dvb_frontend frontend; | |
42 | ||
43 | struct af9013_config config; | |
44 | ||
9e35cd22 AP |
45 | /* tuner/demod RF and IF AGC limits used for signal strength calc */ |
46 | u8 signal_strength_en, rf_50, rf_80, if_50, if_80; | |
825b9670 AP |
47 | u16 signal_strength; |
48 | u32 ber; | |
49 | u32 ucblocks; | |
50 | u16 snr; | |
51 | u32 frequency; | |
52 | unsigned long next_statistics_check; | |
53 | }; | |
54 | ||
55 | static u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff }; | |
56 | ||
57 | static int af9013_write_regs(struct af9013_state *state, u8 mbox, u16 reg, | |
58 | u8 *val, u8 len) | |
59 | { | |
60 | u8 buf[3+len]; | |
61 | struct i2c_msg msg = { | |
62 | .addr = state->config.demod_address, | |
63 | .flags = 0, | |
64 | .len = sizeof(buf), | |
65 | .buf = buf }; | |
66 | ||
67 | buf[0] = reg >> 8; | |
68 | buf[1] = reg & 0xff; | |
69 | buf[2] = mbox; | |
70 | memcpy(&buf[3], val, len); | |
71 | ||
72 | if (i2c_transfer(state->i2c, &msg, 1) != 1) { | |
73 | warn("I2C write failed reg:%04x len:%d", reg, len); | |
74 | return -EREMOTEIO; | |
75 | } | |
76 | return 0; | |
77 | } | |
78 | ||
79 | static int af9013_write_ofdm_regs(struct af9013_state *state, u16 reg, u8 *val, | |
80 | u8 len) | |
81 | { | |
82 | u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(0 << 6)|(0 << 7); | |
83 | return af9013_write_regs(state, mbox, reg, val, len); | |
84 | } | |
85 | ||
86 | static int af9013_write_ofsm_regs(struct af9013_state *state, u16 reg, u8 *val, | |
87 | u8 len) | |
88 | { | |
89 | u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(1 << 6)|(1 << 7); | |
90 | return af9013_write_regs(state, mbox, reg, val, len); | |
91 | } | |
92 | ||
93 | /* write single register */ | |
94 | static int af9013_write_reg(struct af9013_state *state, u16 reg, u8 val) | |
95 | { | |
96 | return af9013_write_ofdm_regs(state, reg, &val, 1); | |
97 | } | |
98 | ||
99 | /* read single register */ | |
100 | static int af9013_read_reg(struct af9013_state *state, u16 reg, u8 *val) | |
101 | { | |
102 | u8 obuf[3] = { reg >> 8, reg & 0xff, 0 }; | |
103 | u8 ibuf[1]; | |
104 | struct i2c_msg msg[2] = { | |
105 | { | |
106 | .addr = state->config.demod_address, | |
107 | .flags = 0, | |
108 | .len = sizeof(obuf), | |
109 | .buf = obuf | |
110 | }, { | |
111 | .addr = state->config.demod_address, | |
112 | .flags = I2C_M_RD, | |
113 | .len = sizeof(ibuf), | |
114 | .buf = ibuf | |
115 | } | |
116 | }; | |
117 | ||
118 | if (i2c_transfer(state->i2c, msg, 2) != 2) { | |
119 | warn("I2C read failed reg:%04x", reg); | |
120 | return -EREMOTEIO; | |
121 | } | |
122 | *val = ibuf[0]; | |
123 | return 0; | |
124 | } | |
125 | ||
126 | static int af9013_write_reg_bits(struct af9013_state *state, u16 reg, u8 pos, | |
127 | u8 len, u8 val) | |
128 | { | |
129 | int ret; | |
130 | u8 tmp, mask; | |
131 | ||
132 | ret = af9013_read_reg(state, reg, &tmp); | |
133 | if (ret) | |
134 | return ret; | |
135 | ||
136 | mask = regmask[len - 1] << pos; | |
137 | tmp = (tmp & ~mask) | ((val << pos) & mask); | |
138 | ||
139 | return af9013_write_reg(state, reg, tmp); | |
140 | } | |
141 | ||
142 | static int af9013_read_reg_bits(struct af9013_state *state, u16 reg, u8 pos, | |
143 | u8 len, u8 *val) | |
144 | { | |
145 | int ret; | |
146 | u8 tmp; | |
147 | ||
148 | ret = af9013_read_reg(state, reg, &tmp); | |
149 | if (ret) | |
150 | return ret; | |
151 | *val = (tmp >> pos) & regmask[len - 1]; | |
152 | return 0; | |
153 | } | |
154 | ||
155 | static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval) | |
156 | { | |
157 | int ret; | |
158 | u8 pos; | |
159 | u16 addr; | |
160 | deb_info("%s: gpio:%d gpioval:%02x\n", __func__, gpio, gpioval); | |
161 | ||
162 | /* GPIO0 & GPIO1 0xd735 | |
163 | GPIO2 & GPIO3 0xd736 */ | |
164 | ||
165 | switch (gpio) { | |
166 | case 0: | |
167 | case 1: | |
168 | addr = 0xd735; | |
169 | break; | |
170 | case 2: | |
171 | case 3: | |
172 | addr = 0xd736; | |
173 | break; | |
174 | ||
175 | default: | |
176 | err("invalid gpio:%d\n", gpio); | |
177 | ret = -EINVAL; | |
178 | goto error; | |
179 | }; | |
180 | ||
181 | switch (gpio) { | |
182 | case 0: | |
183 | case 2: | |
184 | pos = 0; | |
185 | break; | |
186 | case 1: | |
187 | case 3: | |
188 | default: | |
189 | pos = 4; | |
190 | break; | |
191 | }; | |
192 | ||
193 | ret = af9013_write_reg_bits(state, addr, pos, 4, gpioval); | |
194 | ||
195 | error: | |
196 | return ret; | |
197 | } | |
198 | ||
199 | static u32 af913_div(u32 a, u32 b, u32 x) | |
200 | { | |
201 | u32 r = 0, c = 0, i; | |
202 | deb_info("%s: a:%d b:%d x:%d\n", __func__, a, b, x); | |
203 | ||
204 | if (a > b) { | |
205 | c = a / b; | |
206 | a = a - c * b; | |
207 | } | |
208 | ||
209 | for (i = 0; i < x; i++) { | |
210 | if (a >= b) { | |
211 | r += 1; | |
212 | a -= b; | |
213 | } | |
214 | a <<= 1; | |
215 | r <<= 1; | |
216 | } | |
217 | r = (c << (u32)x) + r; | |
218 | ||
219 | deb_info("%s: a:%d b:%d x:%d r:%d r:%x\n", __func__, a, b, x, r, r); | |
220 | return r; | |
221 | } | |
222 | ||
223 | static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw) | |
224 | { | |
edb709b6 | 225 | int ret, i, j, found; |
825b9670 AP |
226 | deb_info("%s: adc_clock:%d bw:%d\n", __func__, |
227 | state->config.adc_clock, bw); | |
228 | ||
9b22edd4 AP |
229 | /* lookup coeff from table */ |
230 | for (i = 0, found = 0; i < ARRAY_SIZE(coeff_table); i++) { | |
231 | if (coeff_table[i].adc_clock == state->config.adc_clock && | |
232 | coeff_table[i].bw == bw) { | |
233 | found = 1; | |
825b9670 | 234 | break; |
825b9670 | 235 | } |
825b9670 | 236 | } |
9b22edd4 AP |
237 | |
238 | if (!found) { | |
239 | err("invalid bw or clock"); | |
240 | ret = -EINVAL; | |
241 | goto error; | |
825b9670 AP |
242 | } |
243 | ||
edb709b6 AP |
244 | deb_info("%s: coeff: ", __func__); |
245 | debug_dump(coeff_table[i].val, sizeof(coeff_table[i].val), deb_info); | |
825b9670 AP |
246 | |
247 | /* program */ | |
edb709b6 AP |
248 | for (j = 0; j < sizeof(coeff_table[i].val); j++) { |
249 | ret = af9013_write_reg(state, 0xae00 + j, | |
250 | coeff_table[i].val[j]); | |
825b9670 AP |
251 | if (ret) |
252 | break; | |
253 | } | |
254 | ||
9b22edd4 | 255 | error: |
825b9670 AP |
256 | return ret; |
257 | } | |
258 | ||
259 | static int af9013_set_adc_ctrl(struct af9013_state *state) | |
260 | { | |
261 | int ret; | |
262 | u8 buf[3], tmp, i; | |
263 | u32 adc_cw; | |
264 | ||
265 | deb_info("%s: adc_clock:%d\n", __func__, state->config.adc_clock); | |
266 | ||
267 | /* adc frequency type */ | |
268 | switch (state->config.adc_clock) { | |
269 | case 28800: /* 28.800 MHz */ | |
270 | tmp = 0; | |
271 | break; | |
272 | case 20480: /* 20.480 MHz */ | |
273 | tmp = 1; | |
274 | break; | |
275 | case 28000: /* 28.000 MHz */ | |
276 | tmp = 2; | |
277 | break; | |
278 | case 25000: /* 25.000 MHz */ | |
279 | tmp = 3; | |
280 | break; | |
281 | default: | |
282 | err("invalid xtal"); | |
283 | return -EINVAL; | |
284 | } | |
285 | ||
286 | adc_cw = af913_div(state->config.adc_clock*1000, 1000000ul, 19ul); | |
287 | ||
288 | buf[0] = (u8) ((adc_cw & 0x000000ff)); | |
289 | buf[1] = (u8) ((adc_cw & 0x0000ff00) >> 8); | |
290 | buf[2] = (u8) ((adc_cw & 0x00ff0000) >> 16); | |
291 | ||
292 | deb_info("%s: adc_cw:", __func__); | |
293 | debug_dump(buf, sizeof(buf), deb_info); | |
294 | ||
295 | /* program */ | |
296 | for (i = 0; i < sizeof(buf); i++) { | |
297 | ret = af9013_write_reg(state, 0xd180 + i, buf[i]); | |
298 | if (ret) | |
299 | goto error; | |
300 | } | |
301 | ret = af9013_write_reg_bits(state, 0x9bd2, 0, 4, tmp); | |
302 | error: | |
303 | return ret; | |
304 | } | |
305 | ||
306 | static int af9013_set_freq_ctrl(struct af9013_state *state, fe_bandwidth_t bw) | |
307 | { | |
308 | int ret; | |
309 | u16 addr; | |
310 | u8 buf[3], i, j; | |
311 | u32 adc_freq, freq_cw; | |
312 | s8 bfs_spec_inv; | |
313 | int if_sample_freq; | |
314 | ||
315 | for (j = 0; j < 3; j++) { | |
316 | if (j == 0) { | |
317 | addr = 0xd140; /* fcw normal */ | |
318 | bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1; | |
319 | } else if (j == 1) { | |
320 | addr = 0x9be7; /* fcw dummy ram */ | |
321 | bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1; | |
322 | } else { | |
323 | addr = 0x9bea; /* fcw inverted */ | |
324 | bfs_spec_inv = state->config.rf_spec_inv ? 1 : -1; | |
325 | } | |
326 | ||
327 | adc_freq = state->config.adc_clock * 1000; | |
328 | if_sample_freq = state->config.tuner_if * 1000; | |
329 | ||
330 | /* TDA18271 uses different sampling freq for every bw */ | |
331 | if (state->config.tuner == AF9013_TUNER_TDA18271) { | |
332 | switch (bw) { | |
333 | case BANDWIDTH_6_MHZ: | |
334 | if_sample_freq = 3300000; /* 3.3 MHz */ | |
335 | break; | |
336 | case BANDWIDTH_7_MHZ: | |
337 | if_sample_freq = 3800000; /* 3.8 MHz */ | |
338 | break; | |
339 | case BANDWIDTH_8_MHZ: | |
340 | default: | |
341 | if_sample_freq = 4300000; /* 4.3 MHz */ | |
342 | break; | |
343 | } | |
2158e509 AP |
344 | } else if (state->config.tuner == AF9013_TUNER_TDA18218) { |
345 | switch (bw) { | |
346 | case BANDWIDTH_6_MHZ: | |
347 | if_sample_freq = 3000000; /* 3 MHz */ | |
348 | break; | |
349 | case BANDWIDTH_7_MHZ: | |
350 | if_sample_freq = 3500000; /* 3.5 MHz */ | |
351 | break; | |
352 | case BANDWIDTH_8_MHZ: | |
353 | default: | |
354 | if_sample_freq = 4000000; /* 4 MHz */ | |
355 | break; | |
356 | } | |
825b9670 AP |
357 | } |
358 | ||
359 | while (if_sample_freq > (adc_freq / 2)) | |
360 | if_sample_freq = if_sample_freq - adc_freq; | |
361 | ||
362 | if (if_sample_freq >= 0) | |
363 | bfs_spec_inv = bfs_spec_inv * (-1); | |
364 | else | |
365 | if_sample_freq = if_sample_freq * (-1); | |
366 | ||
367 | freq_cw = af913_div(if_sample_freq, adc_freq, 23ul); | |
368 | ||
369 | if (bfs_spec_inv == -1) | |
370 | freq_cw = 0x00800000 - freq_cw; | |
371 | ||
372 | buf[0] = (u8) ((freq_cw & 0x000000ff)); | |
373 | buf[1] = (u8) ((freq_cw & 0x0000ff00) >> 8); | |
374 | buf[2] = (u8) ((freq_cw & 0x007f0000) >> 16); | |
375 | ||
376 | ||
377 | deb_info("%s: freq_cw:", __func__); | |
378 | debug_dump(buf, sizeof(buf), deb_info); | |
379 | ||
380 | /* program */ | |
381 | for (i = 0; i < sizeof(buf); i++) { | |
382 | ret = af9013_write_reg(state, addr++, buf[i]); | |
383 | if (ret) | |
384 | goto error; | |
385 | } | |
386 | } | |
387 | error: | |
388 | return ret; | |
389 | } | |
390 | ||
391 | static int af9013_set_ofdm_params(struct af9013_state *state, | |
392 | struct dvb_ofdm_parameters *params, u8 *auto_mode) | |
393 | { | |
394 | int ret; | |
395 | u8 i, buf[3] = {0, 0, 0}; | |
396 | *auto_mode = 0; /* set if parameters are requested to auto set */ | |
397 | ||
a2f5a811 AP |
398 | /* Try auto-detect transmission parameters in case of AUTO requested or |
399 | garbage parameters given by application for compatibility. | |
400 | MPlayer seems to provide garbage parameters currently. */ | |
401 | ||
825b9670 AP |
402 | switch (params->transmission_mode) { |
403 | case TRANSMISSION_MODE_AUTO: | |
404 | *auto_mode = 1; | |
405 | case TRANSMISSION_MODE_2K: | |
406 | break; | |
407 | case TRANSMISSION_MODE_8K: | |
408 | buf[0] |= (1 << 0); | |
409 | break; | |
410 | default: | |
a2f5a811 AP |
411 | deb_info("%s: invalid transmission_mode\n", __func__); |
412 | *auto_mode = 1; | |
825b9670 AP |
413 | } |
414 | ||
415 | switch (params->guard_interval) { | |
416 | case GUARD_INTERVAL_AUTO: | |
417 | *auto_mode = 1; | |
418 | case GUARD_INTERVAL_1_32: | |
419 | break; | |
420 | case GUARD_INTERVAL_1_16: | |
421 | buf[0] |= (1 << 2); | |
422 | break; | |
423 | case GUARD_INTERVAL_1_8: | |
424 | buf[0] |= (2 << 2); | |
425 | break; | |
426 | case GUARD_INTERVAL_1_4: | |
427 | buf[0] |= (3 << 2); | |
428 | break; | |
429 | default: | |
a2f5a811 AP |
430 | deb_info("%s: invalid guard_interval\n", __func__); |
431 | *auto_mode = 1; | |
825b9670 AP |
432 | } |
433 | ||
434 | switch (params->hierarchy_information) { | |
435 | case HIERARCHY_AUTO: | |
436 | *auto_mode = 1; | |
437 | case HIERARCHY_NONE: | |
438 | break; | |
439 | case HIERARCHY_1: | |
440 | buf[0] |= (1 << 4); | |
441 | break; | |
442 | case HIERARCHY_2: | |
443 | buf[0] |= (2 << 4); | |
444 | break; | |
445 | case HIERARCHY_4: | |
446 | buf[0] |= (3 << 4); | |
447 | break; | |
448 | default: | |
a2f5a811 AP |
449 | deb_info("%s: invalid hierarchy_information\n", __func__); |
450 | *auto_mode = 1; | |
825b9670 AP |
451 | }; |
452 | ||
453 | switch (params->constellation) { | |
454 | case QAM_AUTO: | |
455 | *auto_mode = 1; | |
456 | case QPSK: | |
457 | break; | |
458 | case QAM_16: | |
459 | buf[1] |= (1 << 6); | |
460 | break; | |
461 | case QAM_64: | |
462 | buf[1] |= (2 << 6); | |
463 | break; | |
464 | default: | |
a2f5a811 AP |
465 | deb_info("%s: invalid constellation\n", __func__); |
466 | *auto_mode = 1; | |
825b9670 AP |
467 | } |
468 | ||
469 | /* Use HP. How and which case we can switch to LP? */ | |
470 | buf[1] |= (1 << 4); | |
471 | ||
472 | switch (params->code_rate_HP) { | |
473 | case FEC_AUTO: | |
474 | *auto_mode = 1; | |
475 | case FEC_1_2: | |
476 | break; | |
477 | case FEC_2_3: | |
478 | buf[2] |= (1 << 0); | |
479 | break; | |
480 | case FEC_3_4: | |
481 | buf[2] |= (2 << 0); | |
482 | break; | |
483 | case FEC_5_6: | |
484 | buf[2] |= (3 << 0); | |
485 | break; | |
486 | case FEC_7_8: | |
487 | buf[2] |= (4 << 0); | |
488 | break; | |
489 | default: | |
a2f5a811 AP |
490 | deb_info("%s: invalid code_rate_HP\n", __func__); |
491 | *auto_mode = 1; | |
825b9670 AP |
492 | } |
493 | ||
494 | switch (params->code_rate_LP) { | |
495 | case FEC_AUTO: | |
496 | /* if HIERARCHY_NONE and FEC_NONE then LP FEC is set to FEC_AUTO | |
497 | by dvb_frontend.c for compatibility */ | |
498 | if (params->hierarchy_information != HIERARCHY_NONE) | |
499 | *auto_mode = 1; | |
500 | case FEC_1_2: | |
501 | break; | |
502 | case FEC_2_3: | |
503 | buf[2] |= (1 << 3); | |
504 | break; | |
505 | case FEC_3_4: | |
506 | buf[2] |= (2 << 3); | |
507 | break; | |
508 | case FEC_5_6: | |
509 | buf[2] |= (3 << 3); | |
510 | break; | |
511 | case FEC_7_8: | |
512 | buf[2] |= (4 << 3); | |
513 | break; | |
514 | case FEC_NONE: | |
515 | if (params->hierarchy_information == HIERARCHY_AUTO) | |
516 | break; | |
517 | default: | |
a2f5a811 AP |
518 | deb_info("%s: invalid code_rate_LP\n", __func__); |
519 | *auto_mode = 1; | |
825b9670 AP |
520 | } |
521 | ||
522 | switch (params->bandwidth) { | |
523 | case BANDWIDTH_6_MHZ: | |
524 | break; | |
525 | case BANDWIDTH_7_MHZ: | |
526 | buf[1] |= (1 << 2); | |
527 | break; | |
528 | case BANDWIDTH_8_MHZ: | |
529 | buf[1] |= (2 << 2); | |
530 | break; | |
531 | default: | |
a2f5a811 AP |
532 | deb_info("%s: invalid bandwidth\n", __func__); |
533 | buf[1] |= (2 << 2); /* cannot auto-detect BW, try 8 MHz */ | |
825b9670 AP |
534 | } |
535 | ||
536 | /* program */ | |
537 | for (i = 0; i < sizeof(buf); i++) { | |
538 | ret = af9013_write_reg(state, 0xd3c0 + i, buf[i]); | |
539 | if (ret) | |
540 | break; | |
541 | } | |
542 | ||
543 | return ret; | |
544 | } | |
545 | ||
546 | static int af9013_reset(struct af9013_state *state, u8 sleep) | |
547 | { | |
548 | int ret; | |
549 | u8 tmp, i; | |
550 | deb_info("%s\n", __func__); | |
551 | ||
552 | /* enable OFDM reset */ | |
553 | ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 1); | |
554 | if (ret) | |
555 | goto error; | |
556 | ||
557 | /* start reset mechanism */ | |
558 | ret = af9013_write_reg(state, 0xaeff, 1); | |
559 | if (ret) | |
560 | goto error; | |
561 | ||
562 | /* reset is done when bit 1 is set */ | |
563 | for (i = 0; i < 150; i++) { | |
564 | ret = af9013_read_reg_bits(state, 0xd417, 1, 1, &tmp); | |
565 | if (ret) | |
566 | goto error; | |
567 | if (tmp) | |
568 | break; /* reset done */ | |
569 | msleep(10); | |
570 | } | |
571 | if (!tmp) | |
572 | return -ETIMEDOUT; | |
573 | ||
574 | /* don't clear reset when going to sleep */ | |
575 | if (!sleep) { | |
576 | /* clear OFDM reset */ | |
577 | ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0); | |
578 | if (ret) | |
579 | goto error; | |
580 | ||
581 | /* disable OFDM reset */ | |
582 | ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0); | |
583 | } | |
584 | error: | |
585 | return ret; | |
586 | } | |
587 | ||
588 | static int af9013_power_ctrl(struct af9013_state *state, u8 onoff) | |
589 | { | |
590 | int ret; | |
591 | deb_info("%s: onoff:%d\n", __func__, onoff); | |
592 | ||
593 | if (onoff) { | |
594 | /* power on */ | |
595 | ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 0); | |
596 | if (ret) | |
597 | goto error; | |
598 | ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0); | |
599 | if (ret) | |
600 | goto error; | |
601 | ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0); | |
602 | } else { | |
603 | /* power off */ | |
604 | ret = af9013_reset(state, 1); | |
605 | if (ret) | |
606 | goto error; | |
607 | ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 1); | |
608 | } | |
609 | error: | |
610 | return ret; | |
611 | } | |
612 | ||
613 | static int af9013_lock_led(struct af9013_state *state, u8 onoff) | |
614 | { | |
615 | deb_info("%s: onoff:%d\n", __func__, onoff); | |
616 | ||
617 | return af9013_write_reg_bits(state, 0xd730, 0, 1, onoff); | |
618 | } | |
619 | ||
620 | static int af9013_set_frontend(struct dvb_frontend *fe, | |
621 | struct dvb_frontend_parameters *params) | |
622 | { | |
623 | struct af9013_state *state = fe->demodulator_priv; | |
624 | int ret; | |
625 | u8 auto_mode; /* auto set TPS */ | |
626 | ||
627 | deb_info("%s: freq:%d bw:%d\n", __func__, params->frequency, | |
628 | params->u.ofdm.bandwidth); | |
629 | ||
630 | state->frequency = params->frequency; | |
631 | ||
737fabf0 AP |
632 | /* program tuner */ |
633 | if (fe->ops.tuner_ops.set_params) | |
634 | fe->ops.tuner_ops.set_params(fe, params); | |
635 | ||
825b9670 AP |
636 | /* program CFOE coefficients */ |
637 | ret = af9013_set_coeff(state, params->u.ofdm.bandwidth); | |
638 | if (ret) | |
639 | goto error; | |
640 | ||
641 | /* program frequency control */ | |
642 | ret = af9013_set_freq_ctrl(state, params->u.ofdm.bandwidth); | |
643 | if (ret) | |
644 | goto error; | |
645 | ||
646 | /* clear TPS lock flag (inverted flag) */ | |
647 | ret = af9013_write_reg_bits(state, 0xd330, 3, 1, 1); | |
648 | if (ret) | |
649 | goto error; | |
650 | ||
651 | /* clear MPEG2 lock flag */ | |
652 | ret = af9013_write_reg_bits(state, 0xd507, 6, 1, 0); | |
653 | if (ret) | |
654 | goto error; | |
655 | ||
656 | /* empty channel function */ | |
657 | ret = af9013_write_reg_bits(state, 0x9bfe, 0, 1, 0); | |
658 | if (ret) | |
659 | goto error; | |
660 | ||
661 | /* empty DVB-T channel function */ | |
662 | ret = af9013_write_reg_bits(state, 0x9bc2, 0, 1, 0); | |
663 | if (ret) | |
664 | goto error; | |
665 | ||
825b9670 AP |
666 | /* program TPS and bandwidth, check if auto mode needed */ |
667 | ret = af9013_set_ofdm_params(state, ¶ms->u.ofdm, &auto_mode); | |
668 | if (ret) | |
669 | goto error; | |
670 | ||
671 | if (auto_mode) { | |
672 | /* clear easy mode flag */ | |
673 | ret = af9013_write_reg(state, 0xaefd, 0); | |
674 | deb_info("%s: auto TPS\n", __func__); | |
675 | } else { | |
676 | /* set easy mode flag */ | |
677 | ret = af9013_write_reg(state, 0xaefd, 1); | |
678 | if (ret) | |
679 | goto error; | |
680 | ret = af9013_write_reg(state, 0xaefe, 0); | |
681 | deb_info("%s: manual TPS\n", __func__); | |
682 | } | |
683 | if (ret) | |
684 | goto error; | |
685 | ||
686 | /* everything is set, lets try to receive channel - OFSM GO! */ | |
687 | ret = af9013_write_reg(state, 0xffff, 0); | |
688 | if (ret) | |
689 | goto error; | |
690 | ||
691 | error: | |
692 | return ret; | |
693 | } | |
694 | ||
695 | static int af9013_get_frontend(struct dvb_frontend *fe, | |
696 | struct dvb_frontend_parameters *p) | |
697 | { | |
698 | struct af9013_state *state = fe->demodulator_priv; | |
699 | int ret; | |
700 | u8 i, buf[3]; | |
701 | deb_info("%s\n", __func__); | |
702 | ||
703 | /* read TPS registers */ | |
704 | for (i = 0; i < 3; i++) { | |
705 | ret = af9013_read_reg(state, 0xd3c0 + i, &buf[i]); | |
706 | if (ret) | |
707 | goto error; | |
708 | } | |
709 | ||
710 | switch ((buf[1] >> 6) & 3) { | |
711 | case 0: | |
712 | p->u.ofdm.constellation = QPSK; | |
713 | break; | |
714 | case 1: | |
715 | p->u.ofdm.constellation = QAM_16; | |
716 | break; | |
717 | case 2: | |
718 | p->u.ofdm.constellation = QAM_64; | |
719 | break; | |
720 | } | |
721 | ||
722 | switch ((buf[0] >> 0) & 3) { | |
723 | case 0: | |
724 | p->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K; | |
725 | break; | |
726 | case 1: | |
727 | p->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K; | |
728 | } | |
729 | ||
730 | switch ((buf[0] >> 2) & 3) { | |
731 | case 0: | |
732 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_32; | |
733 | break; | |
734 | case 1: | |
735 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_16; | |
736 | break; | |
737 | case 2: | |
738 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_8; | |
739 | break; | |
740 | case 3: | |
741 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_4; | |
742 | break; | |
743 | } | |
744 | ||
745 | switch ((buf[0] >> 4) & 7) { | |
746 | case 0: | |
747 | p->u.ofdm.hierarchy_information = HIERARCHY_NONE; | |
748 | break; | |
749 | case 1: | |
750 | p->u.ofdm.hierarchy_information = HIERARCHY_1; | |
751 | break; | |
752 | case 2: | |
753 | p->u.ofdm.hierarchy_information = HIERARCHY_2; | |
754 | break; | |
755 | case 3: | |
756 | p->u.ofdm.hierarchy_information = HIERARCHY_4; | |
757 | break; | |
758 | } | |
759 | ||
760 | switch ((buf[2] >> 0) & 7) { | |
761 | case 0: | |
762 | p->u.ofdm.code_rate_HP = FEC_1_2; | |
763 | break; | |
764 | case 1: | |
765 | p->u.ofdm.code_rate_HP = FEC_2_3; | |
766 | break; | |
767 | case 2: | |
768 | p->u.ofdm.code_rate_HP = FEC_3_4; | |
769 | break; | |
770 | case 3: | |
771 | p->u.ofdm.code_rate_HP = FEC_5_6; | |
772 | break; | |
773 | case 4: | |
774 | p->u.ofdm.code_rate_HP = FEC_7_8; | |
775 | break; | |
776 | } | |
777 | ||
778 | switch ((buf[2] >> 3) & 7) { | |
779 | case 0: | |
780 | p->u.ofdm.code_rate_LP = FEC_1_2; | |
781 | break; | |
782 | case 1: | |
783 | p->u.ofdm.code_rate_LP = FEC_2_3; | |
784 | break; | |
785 | case 2: | |
786 | p->u.ofdm.code_rate_LP = FEC_3_4; | |
787 | break; | |
788 | case 3: | |
789 | p->u.ofdm.code_rate_LP = FEC_5_6; | |
790 | break; | |
791 | case 4: | |
792 | p->u.ofdm.code_rate_LP = FEC_7_8; | |
793 | break; | |
794 | } | |
795 | ||
796 | switch ((buf[1] >> 2) & 3) { | |
797 | case 0: | |
798 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
799 | break; | |
800 | case 1: | |
801 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
802 | break; | |
803 | case 2: | |
804 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; | |
805 | break; | |
806 | } | |
807 | ||
808 | p->inversion = INVERSION_AUTO; | |
809 | p->frequency = state->frequency; | |
810 | ||
811 | error: | |
812 | return ret; | |
813 | } | |
814 | ||
815 | static int af9013_update_ber_unc(struct dvb_frontend *fe) | |
816 | { | |
817 | struct af9013_state *state = fe->demodulator_priv; | |
818 | int ret; | |
819 | u8 buf[3], i; | |
820 | u32 error_bit_count = 0; | |
821 | u32 total_bit_count = 0; | |
822 | u32 abort_packet_count = 0; | |
825b9670 AP |
823 | |
824 | state->ber = 0; | |
825 | ||
826 | /* check if error bit count is ready */ | |
827 | ret = af9013_read_reg_bits(state, 0xd391, 4, 1, &buf[0]); | |
828 | if (ret) | |
829 | goto error; | |
830 | if (!buf[0]) | |
831 | goto exit; | |
832 | ||
833 | /* get RSD packet abort count */ | |
834 | for (i = 0; i < 2; i++) { | |
835 | ret = af9013_read_reg(state, 0xd38a + i, &buf[i]); | |
836 | if (ret) | |
837 | goto error; | |
838 | } | |
839 | abort_packet_count = (buf[1] << 8) + buf[0]; | |
840 | ||
841 | /* get error bit count */ | |
842 | for (i = 0; i < 3; i++) { | |
843 | ret = af9013_read_reg(state, 0xd387 + i, &buf[i]); | |
844 | if (ret) | |
845 | goto error; | |
846 | } | |
847 | error_bit_count = (buf[2] << 16) + (buf[1] << 8) + buf[0]; | |
848 | error_bit_count = error_bit_count - abort_packet_count * 8 * 8; | |
849 | ||
850 | /* get used RSD counting period (10000 RSD packets used) */ | |
851 | for (i = 0; i < 2; i++) { | |
852 | ret = af9013_read_reg(state, 0xd385 + i, &buf[i]); | |
853 | if (ret) | |
854 | goto error; | |
855 | } | |
856 | total_bit_count = (buf[1] << 8) + buf[0]; | |
857 | total_bit_count = total_bit_count - abort_packet_count; | |
858 | total_bit_count = total_bit_count * 204 * 8; | |
859 | ||
28f947a9 AP |
860 | if (total_bit_count) |
861 | state->ber = error_bit_count * 1000000000 / total_bit_count; | |
825b9670 AP |
862 | |
863 | state->ucblocks += abort_packet_count; | |
864 | ||
865 | deb_info("%s: err bits:%d total bits:%d abort count:%d\n", __func__, | |
866 | error_bit_count, total_bit_count, abort_packet_count); | |
867 | ||
868 | /* set BER counting range */ | |
869 | ret = af9013_write_reg(state, 0xd385, 10000 & 0xff); | |
870 | if (ret) | |
871 | goto error; | |
872 | ret = af9013_write_reg(state, 0xd386, 10000 >> 8); | |
873 | if (ret) | |
874 | goto error; | |
875 | /* reset and start BER counter */ | |
876 | ret = af9013_write_reg_bits(state, 0xd391, 4, 1, 1); | |
877 | if (ret) | |
878 | goto error; | |
879 | ||
880 | exit: | |
881 | error: | |
882 | return ret; | |
883 | } | |
884 | ||
885 | static int af9013_update_snr(struct dvb_frontend *fe) | |
886 | { | |
887 | struct af9013_state *state = fe->demodulator_priv; | |
888 | int ret; | |
889 | u8 buf[3], i, len; | |
890 | u32 quant = 0; | |
4d543096 | 891 | struct snr_table *uninitialized_var(snr_table); |
825b9670 AP |
892 | |
893 | /* check if quantizer ready (for snr) */ | |
894 | ret = af9013_read_reg_bits(state, 0xd2e1, 3, 1, &buf[0]); | |
895 | if (ret) | |
896 | goto error; | |
897 | if (buf[0]) { | |
898 | /* quantizer ready - read it */ | |
899 | for (i = 0; i < 3; i++) { | |
900 | ret = af9013_read_reg(state, 0xd2e3 + i, &buf[i]); | |
901 | if (ret) | |
902 | goto error; | |
903 | } | |
904 | quant = (buf[2] << 16) + (buf[1] << 8) + buf[0]; | |
905 | ||
906 | /* read current constellation */ | |
907 | ret = af9013_read_reg(state, 0xd3c1, &buf[0]); | |
908 | if (ret) | |
909 | goto error; | |
910 | ||
911 | switch ((buf[0] >> 6) & 3) { | |
912 | case 0: | |
913 | len = ARRAY_SIZE(qpsk_snr_table); | |
914 | snr_table = qpsk_snr_table; | |
915 | break; | |
916 | case 1: | |
917 | len = ARRAY_SIZE(qam16_snr_table); | |
918 | snr_table = qam16_snr_table; | |
919 | break; | |
920 | case 2: | |
921 | len = ARRAY_SIZE(qam64_snr_table); | |
922 | snr_table = qam64_snr_table; | |
923 | break; | |
924 | default: | |
925 | len = 0; | |
926 | break; | |
927 | } | |
928 | ||
929 | if (len) { | |
930 | for (i = 0; i < len; i++) { | |
931 | if (quant < snr_table[i].val) { | |
932 | state->snr = snr_table[i].snr * 10; | |
933 | break; | |
934 | } | |
935 | } | |
936 | } | |
937 | ||
938 | /* set quantizer super frame count */ | |
939 | ret = af9013_write_reg(state, 0xd2e2, 1); | |
940 | if (ret) | |
941 | goto error; | |
942 | ||
943 | /* check quantizer availability */ | |
944 | for (i = 0; i < 10; i++) { | |
945 | msleep(10); | |
946 | ret = af9013_read_reg_bits(state, 0xd2e6, 0, 1, | |
947 | &buf[0]); | |
948 | if (ret) | |
949 | goto error; | |
950 | if (!buf[0]) | |
951 | break; | |
952 | } | |
953 | ||
954 | /* reset quantizer */ | |
955 | ret = af9013_write_reg_bits(state, 0xd2e1, 3, 1, 1); | |
956 | if (ret) | |
957 | goto error; | |
958 | } | |
959 | ||
960 | error: | |
961 | return ret; | |
962 | } | |
963 | ||
964 | static int af9013_update_signal_strength(struct dvb_frontend *fe) | |
965 | { | |
966 | struct af9013_state *state = fe->demodulator_priv; | |
967 | int ret; | |
9e35cd22 | 968 | u8 rf_gain, if_gain; |
825b9670 AP |
969 | int signal_strength; |
970 | ||
971 | deb_info("%s\n", __func__); | |
972 | ||
9e35cd22 | 973 | if (state->signal_strength_en) { |
825b9670 AP |
974 | ret = af9013_read_reg(state, 0xd07c, &rf_gain); |
975 | if (ret) | |
976 | goto error; | |
977 | ret = af9013_read_reg(state, 0xd07d, &if_gain); | |
978 | if (ret) | |
979 | goto error; | |
9e35cd22 AP |
980 | signal_strength = (0xffff / \ |
981 | (9 * (state->rf_50 + state->if_50) - \ | |
982 | 11 * (state->rf_80 + state->if_80))) * \ | |
983 | (10 * (rf_gain + if_gain) - \ | |
984 | 11 * (state->rf_80 + state->if_80)); | |
825b9670 AP |
985 | if (signal_strength < 0) |
986 | signal_strength = 0; | |
987 | else if (signal_strength > 0xffff) | |
988 | signal_strength = 0xffff; | |
989 | ||
990 | state->signal_strength = signal_strength; | |
9e35cd22 AP |
991 | } else { |
992 | state->signal_strength = 0; | |
825b9670 AP |
993 | } |
994 | ||
995 | error: | |
996 | return ret; | |
997 | } | |
998 | ||
999 | static int af9013_update_statistics(struct dvb_frontend *fe) | |
1000 | { | |
1001 | struct af9013_state *state = fe->demodulator_priv; | |
1002 | int ret; | |
1003 | ||
1004 | if (time_before(jiffies, state->next_statistics_check)) | |
1005 | return 0; | |
1006 | ||
1007 | /* set minimum statistic update interval */ | |
1008 | state->next_statistics_check = jiffies + msecs_to_jiffies(1200); | |
1009 | ||
1010 | ret = af9013_update_signal_strength(fe); | |
1011 | if (ret) | |
1012 | goto error; | |
1013 | ret = af9013_update_snr(fe); | |
1014 | if (ret) | |
1015 | goto error; | |
1016 | ret = af9013_update_ber_unc(fe); | |
1017 | if (ret) | |
1018 | goto error; | |
1019 | ||
1020 | error: | |
1021 | return ret; | |
1022 | } | |
1023 | ||
1024 | static int af9013_get_tune_settings(struct dvb_frontend *fe, | |
1025 | struct dvb_frontend_tune_settings *fesettings) | |
1026 | { | |
1027 | fesettings->min_delay_ms = 800; | |
1028 | fesettings->step_size = 0; | |
1029 | fesettings->max_drift = 0; | |
1030 | ||
1031 | return 0; | |
1032 | } | |
1033 | ||
1034 | static int af9013_read_status(struct dvb_frontend *fe, fe_status_t *status) | |
1035 | { | |
1036 | struct af9013_state *state = fe->demodulator_priv; | |
1037 | int ret = 0; | |
1038 | u8 tmp; | |
1039 | *status = 0; | |
1040 | ||
825b9670 AP |
1041 | /* MPEG2 lock */ |
1042 | ret = af9013_read_reg_bits(state, 0xd507, 6, 1, &tmp); | |
1043 | if (ret) | |
1044 | goto error; | |
1045 | if (tmp) | |
8af5e381 AP |
1046 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | |
1047 | FE_HAS_SYNC | FE_HAS_LOCK; | |
825b9670 | 1048 | |
8af5e381 AP |
1049 | if (!*status) { |
1050 | /* TPS lock */ | |
1051 | ret = af9013_read_reg_bits(state, 0xd330, 3, 1, &tmp); | |
825b9670 AP |
1052 | if (ret) |
1053 | goto error; | |
1054 | if (tmp) | |
8af5e381 AP |
1055 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | |
1056 | FE_HAS_VITERBI; | |
825b9670 AP |
1057 | } |
1058 | ||
8af5e381 | 1059 | if (!*status) { |
825b9670 AP |
1060 | /* CFO lock */ |
1061 | ret = af9013_read_reg_bits(state, 0xd333, 7, 1, &tmp); | |
1062 | if (ret) | |
1063 | goto error; | |
1064 | if (tmp) | |
8af5e381 | 1065 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER; |
825b9670 AP |
1066 | } |
1067 | ||
8af5e381 | 1068 | if (!*status) { |
825b9670 AP |
1069 | /* SFOE lock */ |
1070 | ret = af9013_read_reg_bits(state, 0xd334, 6, 1, &tmp); | |
1071 | if (ret) | |
1072 | goto error; | |
1073 | if (tmp) | |
8af5e381 AP |
1074 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER; |
1075 | } | |
1076 | ||
1077 | if (!*status) { | |
1078 | /* AGC lock */ | |
1079 | ret = af9013_read_reg_bits(state, 0xd1a0, 6, 1, &tmp); | |
1080 | if (ret) | |
1081 | goto error; | |
1082 | if (tmp) | |
1083 | *status |= FE_HAS_SIGNAL; | |
825b9670 AP |
1084 | } |
1085 | ||
1086 | ret = af9013_update_statistics(fe); | |
1087 | ||
1088 | error: | |
1089 | return ret; | |
1090 | } | |
1091 | ||
1092 | ||
1093 | static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber) | |
1094 | { | |
1095 | struct af9013_state *state = fe->demodulator_priv; | |
1096 | int ret; | |
1097 | ret = af9013_update_statistics(fe); | |
1098 | *ber = state->ber; | |
1099 | return ret; | |
1100 | } | |
1101 | ||
1102 | static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength) | |
1103 | { | |
1104 | struct af9013_state *state = fe->demodulator_priv; | |
1105 | int ret; | |
1106 | ret = af9013_update_statistics(fe); | |
1107 | *strength = state->signal_strength; | |
1108 | return ret; | |
1109 | } | |
1110 | ||
1111 | static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr) | |
1112 | { | |
1113 | struct af9013_state *state = fe->demodulator_priv; | |
1114 | int ret; | |
1115 | ret = af9013_update_statistics(fe); | |
1116 | *snr = state->snr; | |
1117 | return ret; | |
1118 | } | |
1119 | ||
1120 | static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) | |
1121 | { | |
1122 | struct af9013_state *state = fe->demodulator_priv; | |
1123 | int ret; | |
1124 | ret = af9013_update_statistics(fe); | |
1125 | *ucblocks = state->ucblocks; | |
1126 | return ret; | |
1127 | } | |
1128 | ||
1129 | static int af9013_sleep(struct dvb_frontend *fe) | |
1130 | { | |
1131 | struct af9013_state *state = fe->demodulator_priv; | |
1132 | int ret; | |
1133 | deb_info("%s\n", __func__); | |
1134 | ||
1135 | ret = af9013_lock_led(state, 0); | |
1136 | if (ret) | |
1137 | goto error; | |
1138 | ||
1139 | ret = af9013_power_ctrl(state, 0); | |
1140 | error: | |
1141 | return ret; | |
1142 | } | |
1143 | ||
1144 | static int af9013_init(struct dvb_frontend *fe) | |
1145 | { | |
1146 | struct af9013_state *state = fe->demodulator_priv; | |
1147 | int ret, i, len; | |
1148 | u8 tmp0, tmp1; | |
1149 | struct regdesc *init; | |
1150 | deb_info("%s\n", __func__); | |
1151 | ||
1152 | /* reset OFDM */ | |
1153 | ret = af9013_reset(state, 0); | |
1154 | if (ret) | |
1155 | goto error; | |
1156 | ||
1157 | /* power on */ | |
1158 | ret = af9013_power_ctrl(state, 1); | |
1159 | if (ret) | |
1160 | goto error; | |
1161 | ||
1162 | /* enable ADC */ | |
1163 | ret = af9013_write_reg(state, 0xd73a, 0xa4); | |
1164 | if (ret) | |
1165 | goto error; | |
1166 | ||
1167 | /* write API version to firmware */ | |
1168 | for (i = 0; i < sizeof(state->config.api_version); i++) { | |
1169 | ret = af9013_write_reg(state, 0x9bf2 + i, | |
1170 | state->config.api_version[i]); | |
1171 | if (ret) | |
1172 | goto error; | |
1173 | } | |
1174 | ||
1175 | /* program ADC control */ | |
1176 | ret = af9013_set_adc_ctrl(state); | |
1177 | if (ret) | |
1178 | goto error; | |
1179 | ||
1180 | /* set I2C master clock */ | |
1181 | ret = af9013_write_reg(state, 0xd416, 0x14); | |
1182 | if (ret) | |
1183 | goto error; | |
1184 | ||
1185 | /* set 16 embx */ | |
1186 | ret = af9013_write_reg_bits(state, 0xd700, 1, 1, 1); | |
1187 | if (ret) | |
1188 | goto error; | |
1189 | ||
1190 | /* set no trigger */ | |
1191 | ret = af9013_write_reg_bits(state, 0xd700, 2, 1, 0); | |
1192 | if (ret) | |
1193 | goto error; | |
1194 | ||
1195 | /* set read-update bit for constellation */ | |
1196 | ret = af9013_write_reg_bits(state, 0xd371, 1, 1, 1); | |
1197 | if (ret) | |
1198 | goto error; | |
1199 | ||
1200 | /* enable FEC monitor */ | |
1201 | ret = af9013_write_reg_bits(state, 0xd392, 1, 1, 1); | |
1202 | if (ret) | |
1203 | goto error; | |
1204 | ||
1205 | /* load OFSM settings */ | |
1206 | deb_info("%s: load ofsm settings\n", __func__); | |
1207 | len = ARRAY_SIZE(ofsm_init); | |
1208 | init = ofsm_init; | |
1209 | for (i = 0; i < len; i++) { | |
1210 | ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos, | |
1211 | init[i].len, init[i].val); | |
1212 | if (ret) | |
1213 | goto error; | |
1214 | } | |
1215 | ||
1216 | /* load tuner specific settings */ | |
1217 | deb_info("%s: load tuner specific settings\n", __func__); | |
1218 | switch (state->config.tuner) { | |
1219 | case AF9013_TUNER_MXL5003D: | |
1220 | len = ARRAY_SIZE(tuner_init_mxl5003d); | |
1221 | init = tuner_init_mxl5003d; | |
1222 | break; | |
1223 | case AF9013_TUNER_MXL5005D: | |
1224 | case AF9013_TUNER_MXL5005R: | |
a4f31d0d | 1225 | case AF9013_TUNER_MXL5007T: |
825b9670 AP |
1226 | len = ARRAY_SIZE(tuner_init_mxl5005); |
1227 | init = tuner_init_mxl5005; | |
1228 | break; | |
1229 | case AF9013_TUNER_ENV77H11D5: | |
1230 | len = ARRAY_SIZE(tuner_init_env77h11d5); | |
1231 | init = tuner_init_env77h11d5; | |
1232 | break; | |
1233 | case AF9013_TUNER_MT2060: | |
1234 | len = ARRAY_SIZE(tuner_init_mt2060); | |
1235 | init = tuner_init_mt2060; | |
1236 | break; | |
1237 | case AF9013_TUNER_MC44S803: | |
1238 | len = ARRAY_SIZE(tuner_init_mc44s803); | |
1239 | init = tuner_init_mc44s803; | |
1240 | break; | |
1241 | case AF9013_TUNER_QT1010: | |
1242 | case AF9013_TUNER_QT1010A: | |
1243 | len = ARRAY_SIZE(tuner_init_qt1010); | |
1244 | init = tuner_init_qt1010; | |
1245 | break; | |
1246 | case AF9013_TUNER_MT2060_2: | |
1247 | len = ARRAY_SIZE(tuner_init_mt2060_2); | |
1248 | init = tuner_init_mt2060_2; | |
1249 | break; | |
1250 | case AF9013_TUNER_TDA18271: | |
2158e509 | 1251 | case AF9013_TUNER_TDA18218: |
825b9670 AP |
1252 | len = ARRAY_SIZE(tuner_init_tda18271); |
1253 | init = tuner_init_tda18271; | |
1254 | break; | |
1255 | case AF9013_TUNER_UNKNOWN: | |
1256 | default: | |
1257 | len = ARRAY_SIZE(tuner_init_unknown); | |
1258 | init = tuner_init_unknown; | |
1259 | break; | |
1260 | } | |
1261 | ||
1262 | for (i = 0; i < len; i++) { | |
1263 | ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos, | |
1264 | init[i].len, init[i].val); | |
1265 | if (ret) | |
1266 | goto error; | |
1267 | } | |
1268 | ||
1269 | /* set TS mode */ | |
1270 | deb_info("%s: setting ts mode\n", __func__); | |
1271 | tmp0 = 0; /* parallel mode */ | |
1272 | tmp1 = 0; /* serial mode */ | |
1273 | switch (state->config.output_mode) { | |
1274 | case AF9013_OUTPUT_MODE_PARALLEL: | |
1275 | tmp0 = 1; | |
1276 | break; | |
1277 | case AF9013_OUTPUT_MODE_SERIAL: | |
1278 | tmp1 = 1; | |
1279 | break; | |
1280 | case AF9013_OUTPUT_MODE_USB: | |
1281 | /* usb mode for AF9015 */ | |
1282 | default: | |
1283 | break; | |
1284 | } | |
1285 | ret = af9013_write_reg_bits(state, 0xd500, 1, 1, tmp0); /* parallel */ | |
1286 | if (ret) | |
1287 | goto error; | |
1288 | ret = af9013_write_reg_bits(state, 0xd500, 2, 1, tmp1); /* serial */ | |
1289 | if (ret) | |
1290 | goto error; | |
1291 | ||
1292 | /* enable lock led */ | |
1293 | ret = af9013_lock_led(state, 1); | |
1294 | if (ret) | |
1295 | goto error; | |
1296 | ||
9e35cd22 AP |
1297 | /* read values needed for signal strength calculation */ |
1298 | ret = af9013_read_reg_bits(state, 0x9bee, 0, 1, | |
1299 | &state->signal_strength_en); | |
1300 | if (ret) | |
1301 | goto error; | |
1302 | ||
1303 | if (state->signal_strength_en) { | |
1304 | ret = af9013_read_reg(state, 0x9bbd, &state->rf_50); | |
1305 | if (ret) | |
1306 | goto error; | |
1307 | ret = af9013_read_reg(state, 0x9bd0, &state->rf_80); | |
1308 | if (ret) | |
1309 | goto error; | |
1310 | ret = af9013_read_reg(state, 0x9be2, &state->if_50); | |
1311 | if (ret) | |
1312 | goto error; | |
1313 | ret = af9013_read_reg(state, 0x9be4, &state->if_80); | |
1314 | if (ret) | |
1315 | goto error; | |
1316 | } | |
1317 | ||
825b9670 AP |
1318 | error: |
1319 | return ret; | |
1320 | } | |
1321 | ||
1322 | static struct dvb_frontend_ops af9013_ops; | |
1323 | ||
1324 | static int af9013_download_firmware(struct af9013_state *state) | |
1325 | { | |
1326 | int i, len, packets, remainder, ret; | |
1327 | const struct firmware *fw; | |
1328 | u16 addr = 0x5100; /* firmware start address */ | |
1329 | u16 checksum = 0; | |
1330 | u8 val; | |
1331 | u8 fw_params[4]; | |
1332 | u8 *data; | |
1333 | u8 *fw_file = AF9013_DEFAULT_FIRMWARE; | |
1334 | ||
1335 | msleep(100); | |
1336 | /* check whether firmware is already running */ | |
1337 | ret = af9013_read_reg(state, 0x98be, &val); | |
1338 | if (ret) | |
1339 | goto error; | |
1340 | else | |
1341 | deb_info("%s: firmware status:%02x\n", __func__, val); | |
1342 | ||
1343 | if (val == 0x0c) /* fw is running, no need for download */ | |
1344 | goto exit; | |
1345 | ||
1346 | info("found a '%s' in cold state, will try to load a firmware", | |
1347 | af9013_ops.info.name); | |
1348 | ||
1349 | /* request the firmware, this will block and timeout */ | |
e9785250 | 1350 | ret = request_firmware(&fw, fw_file, state->i2c->dev.parent); |
825b9670 AP |
1351 | if (ret) { |
1352 | err("did not find the firmware file. (%s) " | |
1353 | "Please see linux/Documentation/dvb/ for more details" \ | |
1354 | " on firmware-problems. (%d)", | |
1355 | fw_file, ret); | |
1356 | goto error; | |
1357 | } | |
1358 | ||
1359 | info("downloading firmware from file '%s'", fw_file); | |
1360 | ||
1361 | /* calc checksum */ | |
1362 | for (i = 0; i < fw->size; i++) | |
1363 | checksum += fw->data[i]; | |
1364 | ||
1365 | fw_params[0] = checksum >> 8; | |
1366 | fw_params[1] = checksum & 0xff; | |
1367 | fw_params[2] = fw->size >> 8; | |
1368 | fw_params[3] = fw->size & 0xff; | |
1369 | ||
1370 | /* write fw checksum & size */ | |
1371 | ret = af9013_write_ofsm_regs(state, 0x50fc, | |
1372 | fw_params, sizeof(fw_params)); | |
1373 | if (ret) | |
1374 | goto error_release; | |
1375 | ||
1376 | #define FW_PACKET_MAX_DATA 16 | |
1377 | ||
1378 | packets = fw->size / FW_PACKET_MAX_DATA; | |
1379 | remainder = fw->size % FW_PACKET_MAX_DATA; | |
1380 | len = FW_PACKET_MAX_DATA; | |
1381 | for (i = 0; i <= packets; i++) { | |
1382 | if (i == packets) /* set size of the last packet */ | |
1383 | len = remainder; | |
1384 | ||
541dfa87 | 1385 | data = (u8 *)(fw->data + i * FW_PACKET_MAX_DATA); |
825b9670 AP |
1386 | ret = af9013_write_ofsm_regs(state, addr, data, len); |
1387 | addr += FW_PACKET_MAX_DATA; | |
1388 | ||
1389 | if (ret) { | |
1390 | err("firmware download failed at %d with %d", i, ret); | |
1391 | goto error_release; | |
1392 | } | |
1393 | } | |
1394 | ||
825b9670 AP |
1395 | /* request boot firmware */ |
1396 | ret = af9013_write_reg(state, 0xe205, 1); | |
1397 | if (ret) | |
1398 | goto error_release; | |
1399 | ||
1400 | for (i = 0; i < 15; i++) { | |
1401 | msleep(100); | |
1402 | ||
1403 | /* check firmware status */ | |
1404 | ret = af9013_read_reg(state, 0x98be, &val); | |
1405 | if (ret) | |
1406 | goto error_release; | |
1407 | ||
1408 | deb_info("%s: firmware status:%02x\n", __func__, val); | |
1409 | ||
1410 | if (val == 0x0c || val == 0x04) /* success or fail */ | |
1411 | break; | |
1412 | } | |
1413 | ||
1414 | if (val == 0x04) { | |
1415 | err("firmware did not run"); | |
1416 | ret = -1; | |
1417 | } else if (val != 0x0c) { | |
1418 | err("firmware boot timeout"); | |
1419 | ret = -1; | |
1420 | } | |
1421 | ||
1422 | error_release: | |
1423 | release_firmware(fw); | |
1424 | error: | |
1425 | exit: | |
1426 | if (!ret) | |
1427 | info("found a '%s' in warm state.", af9013_ops.info.name); | |
1428 | return ret; | |
1429 | } | |
1430 | ||
1431 | static int af9013_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) | |
1432 | { | |
1433 | int ret; | |
1434 | struct af9013_state *state = fe->demodulator_priv; | |
1435 | deb_info("%s: enable:%d\n", __func__, enable); | |
1436 | ||
1437 | if (state->config.output_mode == AF9013_OUTPUT_MODE_USB) | |
1438 | ret = af9013_write_reg_bits(state, 0xd417, 3, 1, enable); | |
1439 | else | |
1440 | ret = af9013_write_reg_bits(state, 0xd607, 2, 1, enable); | |
1441 | ||
1442 | return ret; | |
1443 | } | |
1444 | ||
1445 | static void af9013_release(struct dvb_frontend *fe) | |
1446 | { | |
1447 | struct af9013_state *state = fe->demodulator_priv; | |
1448 | kfree(state); | |
1449 | } | |
1450 | ||
1451 | static struct dvb_frontend_ops af9013_ops; | |
1452 | ||
1453 | struct dvb_frontend *af9013_attach(const struct af9013_config *config, | |
1454 | struct i2c_adapter *i2c) | |
1455 | { | |
1456 | int ret; | |
1457 | struct af9013_state *state = NULL; | |
ce99efa5 | 1458 | u8 buf[4], i; |
825b9670 AP |
1459 | |
1460 | /* allocate memory for the internal state */ | |
1461 | state = kzalloc(sizeof(struct af9013_state), GFP_KERNEL); | |
1462 | if (state == NULL) | |
1463 | goto error; | |
1464 | ||
1465 | /* setup the state */ | |
1466 | state->i2c = i2c; | |
1467 | memcpy(&state->config, config, sizeof(struct af9013_config)); | |
1468 | ||
1469 | /* chip version */ | |
1470 | ret = af9013_read_reg_bits(state, 0xd733, 4, 4, &buf[2]); | |
1471 | if (ret) | |
1472 | goto error; | |
1473 | ||
1474 | /* ROM version */ | |
1475 | for (i = 0; i < 2; i++) { | |
1476 | ret = af9013_read_reg(state, 0x116b + i, &buf[i]); | |
1477 | if (ret) | |
1478 | goto error; | |
1479 | } | |
1480 | deb_info("%s: chip version:%d ROM version:%d.%d\n", __func__, | |
1481 | buf[2], buf[0], buf[1]); | |
1482 | ||
1483 | /* download firmware */ | |
1484 | if (state->config.output_mode != AF9013_OUTPUT_MODE_USB) { | |
1485 | ret = af9013_download_firmware(state); | |
1486 | if (ret) | |
1487 | goto error; | |
1488 | } | |
1489 | ||
1490 | /* firmware version */ | |
ce99efa5 | 1491 | for (i = 0; i < 4; i++) { |
825b9670 AP |
1492 | ret = af9013_read_reg(state, 0x5103 + i, &buf[i]); |
1493 | if (ret) | |
1494 | goto error; | |
1495 | } | |
ce99efa5 | 1496 | info("firmware version:%d.%d.%d.%d", buf[0], buf[1], buf[2], buf[3]); |
825b9670 AP |
1497 | |
1498 | /* settings for mp2if */ | |
1499 | if (state->config.output_mode == AF9013_OUTPUT_MODE_USB) { | |
1500 | /* AF9015 split PSB to 1.5k + 0.5k */ | |
1501 | ret = af9013_write_reg_bits(state, 0xd50b, 2, 1, 1); | |
1502 | } else { | |
1503 | /* AF9013 change the output bit to data7 */ | |
1504 | ret = af9013_write_reg_bits(state, 0xd500, 3, 1, 1); | |
1505 | if (ret) | |
1506 | goto error; | |
1507 | /* AF9013 set mpeg to full speed */ | |
1508 | ret = af9013_write_reg_bits(state, 0xd502, 4, 1, 1); | |
1509 | } | |
1510 | if (ret) | |
1511 | goto error; | |
1512 | ret = af9013_write_reg_bits(state, 0xd520, 4, 1, 1); | |
1513 | if (ret) | |
1514 | goto error; | |
1515 | ||
1516 | /* set GPIOs */ | |
1517 | for (i = 0; i < sizeof(state->config.gpio); i++) { | |
1518 | ret = af9013_set_gpio(state, i, state->config.gpio[i]); | |
1519 | if (ret) | |
1520 | goto error; | |
1521 | } | |
1522 | ||
1523 | /* create dvb_frontend */ | |
1524 | memcpy(&state->frontend.ops, &af9013_ops, | |
1525 | sizeof(struct dvb_frontend_ops)); | |
1526 | state->frontend.demodulator_priv = state; | |
1527 | ||
1528 | return &state->frontend; | |
1529 | error: | |
1530 | kfree(state); | |
1531 | return NULL; | |
1532 | } | |
1533 | EXPORT_SYMBOL(af9013_attach); | |
1534 | ||
1535 | static struct dvb_frontend_ops af9013_ops = { | |
1536 | .info = { | |
1537 | .name = "Afatech AF9013 DVB-T", | |
1538 | .type = FE_OFDM, | |
1539 | .frequency_min = 174000000, | |
1540 | .frequency_max = 862000000, | |
1541 | .frequency_stepsize = 250000, | |
1542 | .frequency_tolerance = 0, | |
1543 | .caps = | |
1544 | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
1545 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | |
1546 | FE_CAN_QPSK | FE_CAN_QAM_16 | | |
1547 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | | |
1548 | FE_CAN_TRANSMISSION_MODE_AUTO | | |
1549 | FE_CAN_GUARD_INTERVAL_AUTO | | |
1550 | FE_CAN_HIERARCHY_AUTO | | |
1551 | FE_CAN_RECOVER | | |
1552 | FE_CAN_MUTE_TS | |
1553 | }, | |
1554 | ||
1555 | .release = af9013_release, | |
1556 | .init = af9013_init, | |
1557 | .sleep = af9013_sleep, | |
1558 | .i2c_gate_ctrl = af9013_i2c_gate_ctrl, | |
1559 | ||
1560 | .set_frontend = af9013_set_frontend, | |
1561 | .get_frontend = af9013_get_frontend, | |
1562 | ||
1563 | .get_tune_settings = af9013_get_tune_settings, | |
1564 | ||
1565 | .read_status = af9013_read_status, | |
1566 | .read_ber = af9013_read_ber, | |
1567 | .read_signal_strength = af9013_read_signal_strength, | |
1568 | .read_snr = af9013_read_snr, | |
1569 | .read_ucblocks = af9013_read_ucblocks, | |
1570 | }; | |
1571 | ||
1572 | module_param_named(debug, af9013_debug, int, 0644); | |
1573 | MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); | |
1574 | ||
1575 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
1576 | MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver"); | |
1577 | MODULE_LICENSE("GPL"); |