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Commit | Line | Data |
---|---|---|
825b9670 | 1 | /* |
c89f66f6 | 2 | * Afatech AF9013 demodulator driver |
825b9670 AP |
3 | * |
4 | * Copyright (C) 2007 Antti Palosaari <crope@iki.fi> | |
f571e004 | 5 | * Copyright (C) 2011 Antti Palosaari <crope@iki.fi> |
825b9670 AP |
6 | * |
7 | * Thanks to Afatech who kindly provided information. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | * | |
23 | */ | |
24 | ||
825b9670 | 25 | #include "af9013_priv.h" |
825b9670 | 26 | |
825b9670 AP |
27 | struct af9013_state { |
28 | struct i2c_adapter *i2c; | |
f571e004 | 29 | struct dvb_frontend fe; |
825b9670 AP |
30 | struct af9013_config config; |
31 | ||
9e35cd22 AP |
32 | /* tuner/demod RF and IF AGC limits used for signal strength calc */ |
33 | u8 signal_strength_en, rf_50, rf_80, if_50, if_80; | |
825b9670 AP |
34 | u16 signal_strength; |
35 | u32 ber; | |
36 | u32 ucblocks; | |
37 | u16 snr; | |
f571e004 AP |
38 | u32 bandwidth_hz; |
39 | fe_status_t fe_status; | |
40 | unsigned long set_frontend_jiffies; | |
41 | unsigned long read_status_jiffies; | |
42 | bool first_tune; | |
43 | bool i2c_gate_state; | |
44 | unsigned int statistics_step:3; | |
45 | struct delayed_work statistics_work; | |
825b9670 AP |
46 | }; |
47 | ||
f571e004 AP |
48 | /* write multiple registers */ |
49 | static int af9013_wr_regs_i2c(struct af9013_state *priv, u8 mbox, u16 reg, | |
50 | const u8 *val, int len) | |
825b9670 | 51 | { |
f571e004 | 52 | int ret; |
825b9670 | 53 | u8 buf[3+len]; |
f571e004 AP |
54 | struct i2c_msg msg[1] = { |
55 | { | |
56 | .addr = priv->config.i2c_addr, | |
57 | .flags = 0, | |
58 | .len = sizeof(buf), | |
59 | .buf = buf, | |
60 | } | |
61 | }; | |
62 | ||
63 | buf[0] = (reg >> 8) & 0xff; | |
64 | buf[1] = (reg >> 0) & 0xff; | |
825b9670 AP |
65 | buf[2] = mbox; |
66 | memcpy(&buf[3], val, len); | |
67 | ||
f571e004 AP |
68 | ret = i2c_transfer(priv->i2c, msg, 1); |
69 | if (ret == 1) { | |
70 | ret = 0; | |
71 | } else { | |
8df379c5 AP |
72 | dev_warn(&priv->i2c->dev, "%s: i2c wr failed=%d reg=%04x " \ |
73 | "len=%d\n", KBUILD_MODNAME, ret, reg, len); | |
f571e004 | 74 | ret = -EREMOTEIO; |
825b9670 | 75 | } |
f571e004 | 76 | return ret; |
825b9670 AP |
77 | } |
78 | ||
f571e004 AP |
79 | /* read multiple registers */ |
80 | static int af9013_rd_regs_i2c(struct af9013_state *priv, u8 mbox, u16 reg, | |
81 | u8 *val, int len) | |
825b9670 | 82 | { |
f571e004 AP |
83 | int ret; |
84 | u8 buf[3]; | |
85 | struct i2c_msg msg[2] = { | |
86 | { | |
87 | .addr = priv->config.i2c_addr, | |
88 | .flags = 0, | |
89 | .len = 3, | |
90 | .buf = buf, | |
91 | }, { | |
92 | .addr = priv->config.i2c_addr, | |
93 | .flags = I2C_M_RD, | |
94 | .len = len, | |
95 | .buf = val, | |
96 | } | |
97 | }; | |
98 | ||
99 | buf[0] = (reg >> 8) & 0xff; | |
100 | buf[1] = (reg >> 0) & 0xff; | |
101 | buf[2] = mbox; | |
102 | ||
103 | ret = i2c_transfer(priv->i2c, msg, 2); | |
104 | if (ret == 2) { | |
105 | ret = 0; | |
106 | } else { | |
8df379c5 AP |
107 | dev_warn(&priv->i2c->dev, "%s: i2c rd failed=%d reg=%04x " \ |
108 | "len=%d\n", KBUILD_MODNAME, ret, reg, len); | |
f571e004 AP |
109 | ret = -EREMOTEIO; |
110 | } | |
111 | return ret; | |
825b9670 AP |
112 | } |
113 | ||
f571e004 AP |
114 | /* write multiple registers */ |
115 | static int af9013_wr_regs(struct af9013_state *priv, u16 reg, const u8 *val, | |
116 | int len) | |
825b9670 | 117 | { |
f571e004 AP |
118 | int ret, i; |
119 | u8 mbox = (0 << 7)|(0 << 6)|(1 << 1)|(1 << 0); | |
120 | ||
938ca36e DC |
121 | if ((priv->config.ts_mode == AF9013_TS_USB) && |
122 | ((reg & 0xff00) != 0xff00) && ((reg & 0xff00) != 0xae00)) { | |
f571e004 AP |
123 | mbox |= ((len - 1) << 2); |
124 | ret = af9013_wr_regs_i2c(priv, mbox, reg, val, len); | |
125 | } else { | |
126 | for (i = 0; i < len; i++) { | |
127 | ret = af9013_wr_regs_i2c(priv, mbox, reg+i, val+i, 1); | |
128 | if (ret) | |
129 | goto err; | |
130 | } | |
131 | } | |
132 | ||
133 | err: | |
134 | return 0; | |
135 | } | |
136 | ||
137 | /* read multiple registers */ | |
138 | static int af9013_rd_regs(struct af9013_state *priv, u16 reg, u8 *val, int len) | |
139 | { | |
140 | int ret, i; | |
141 | u8 mbox = (0 << 7)|(0 << 6)|(1 << 1)|(0 << 0); | |
142 | ||
938ca36e DC |
143 | if ((priv->config.ts_mode == AF9013_TS_USB) && |
144 | ((reg & 0xff00) != 0xff00) && ((reg & 0xff00) != 0xae00)) { | |
f571e004 AP |
145 | mbox |= ((len - 1) << 2); |
146 | ret = af9013_rd_regs_i2c(priv, mbox, reg, val, len); | |
147 | } else { | |
148 | for (i = 0; i < len; i++) { | |
149 | ret = af9013_rd_regs_i2c(priv, mbox, reg+i, val+i, 1); | |
150 | if (ret) | |
151 | goto err; | |
152 | } | |
153 | } | |
154 | ||
155 | err: | |
156 | return 0; | |
825b9670 AP |
157 | } |
158 | ||
159 | /* write single register */ | |
f571e004 | 160 | static int af9013_wr_reg(struct af9013_state *priv, u16 reg, u8 val) |
825b9670 | 161 | { |
f571e004 | 162 | return af9013_wr_regs(priv, reg, &val, 1); |
825b9670 AP |
163 | } |
164 | ||
165 | /* read single register */ | |
f571e004 | 166 | static int af9013_rd_reg(struct af9013_state *priv, u16 reg, u8 *val) |
825b9670 | 167 | { |
f571e004 AP |
168 | return af9013_rd_regs(priv, reg, val, 1); |
169 | } | |
825b9670 | 170 | |
f571e004 AP |
171 | static int af9013_write_ofsm_regs(struct af9013_state *state, u16 reg, u8 *val, |
172 | u8 len) | |
173 | { | |
174 | u8 mbox = (1 << 7)|(1 << 6)|((len - 1) << 2)|(1 << 1)|(1 << 0); | |
175 | return af9013_wr_regs_i2c(state, mbox, reg, val, len); | |
825b9670 AP |
176 | } |
177 | ||
f571e004 AP |
178 | static int af9013_wr_reg_bits(struct af9013_state *state, u16 reg, int pos, |
179 | int len, u8 val) | |
825b9670 AP |
180 | { |
181 | int ret; | |
182 | u8 tmp, mask; | |
183 | ||
f571e004 AP |
184 | /* no need for read if whole reg is written */ |
185 | if (len != 8) { | |
186 | ret = af9013_rd_reg(state, reg, &tmp); | |
187 | if (ret) | |
188 | return ret; | |
825b9670 | 189 | |
f571e004 AP |
190 | mask = (0xff >> (8 - len)) << pos; |
191 | val <<= pos; | |
192 | tmp &= ~mask; | |
193 | val |= tmp; | |
194 | } | |
825b9670 | 195 | |
f571e004 | 196 | return af9013_wr_reg(state, reg, val); |
825b9670 AP |
197 | } |
198 | ||
f571e004 AP |
199 | static int af9013_rd_reg_bits(struct af9013_state *state, u16 reg, int pos, |
200 | int len, u8 *val) | |
825b9670 AP |
201 | { |
202 | int ret; | |
203 | u8 tmp; | |
204 | ||
f571e004 | 205 | ret = af9013_rd_reg(state, reg, &tmp); |
825b9670 AP |
206 | if (ret) |
207 | return ret; | |
f571e004 AP |
208 | |
209 | *val = (tmp >> pos); | |
210 | *val &= (0xff >> (8 - len)); | |
211 | ||
825b9670 AP |
212 | return 0; |
213 | } | |
214 | ||
215 | static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval) | |
216 | { | |
217 | int ret; | |
218 | u8 pos; | |
219 | u16 addr; | |
825b9670 | 220 | |
8df379c5 AP |
221 | dev_dbg(&state->i2c->dev, "%s: gpio=%d gpioval=%02x\n", |
222 | __func__, gpio, gpioval); | |
f571e004 AP |
223 | |
224 | /* | |
225 | * GPIO0 & GPIO1 0xd735 | |
226 | * GPIO2 & GPIO3 0xd736 | |
227 | */ | |
825b9670 AP |
228 | |
229 | switch (gpio) { | |
230 | case 0: | |
231 | case 1: | |
232 | addr = 0xd735; | |
233 | break; | |
234 | case 2: | |
235 | case 3: | |
236 | addr = 0xd736; | |
237 | break; | |
238 | ||
239 | default: | |
8df379c5 AP |
240 | dev_err(&state->i2c->dev, "%s: invalid gpio=%d\n", |
241 | KBUILD_MODNAME, gpio); | |
825b9670 | 242 | ret = -EINVAL; |
f571e004 | 243 | goto err; |
c2c1b415 | 244 | } |
825b9670 AP |
245 | |
246 | switch (gpio) { | |
247 | case 0: | |
248 | case 2: | |
249 | pos = 0; | |
250 | break; | |
251 | case 1: | |
252 | case 3: | |
253 | default: | |
254 | pos = 4; | |
255 | break; | |
c2c1b415 | 256 | } |
825b9670 | 257 | |
f571e004 AP |
258 | ret = af9013_wr_reg_bits(state, addr, pos, 4, gpioval); |
259 | if (ret) | |
260 | goto err; | |
825b9670 | 261 | |
f571e004 AP |
262 | return ret; |
263 | err: | |
8df379c5 | 264 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
825b9670 AP |
265 | return ret; |
266 | } | |
267 | ||
8df379c5 | 268 | static u32 af9013_div(struct af9013_state *state, u32 a, u32 b, u32 x) |
825b9670 AP |
269 | { |
270 | u32 r = 0, c = 0, i; | |
f571e004 | 271 | |
8df379c5 | 272 | dev_dbg(&state->i2c->dev, "%s: a=%d b=%d x=%d\n", __func__, a, b, x); |
825b9670 AP |
273 | |
274 | if (a > b) { | |
275 | c = a / b; | |
276 | a = a - c * b; | |
277 | } | |
278 | ||
279 | for (i = 0; i < x; i++) { | |
280 | if (a >= b) { | |
281 | r += 1; | |
282 | a -= b; | |
283 | } | |
284 | a <<= 1; | |
285 | r <<= 1; | |
286 | } | |
287 | r = (c << (u32)x) + r; | |
288 | ||
8df379c5 AP |
289 | dev_dbg(&state->i2c->dev, "%s: a=%d b=%d x=%d r=%d r=%x\n", |
290 | __func__, a, b, x, r, r); | |
291 | ||
825b9670 AP |
292 | return r; |
293 | } | |
294 | ||
f571e004 | 295 | static int af9013_power_ctrl(struct af9013_state *state, u8 onoff) |
825b9670 | 296 | { |
f571e004 AP |
297 | int ret, i; |
298 | u8 tmp; | |
9b22edd4 | 299 | |
8df379c5 | 300 | dev_dbg(&state->i2c->dev, "%s: onoff=%d\n", __func__, onoff); |
f571e004 AP |
301 | |
302 | /* enable reset */ | |
303 | ret = af9013_wr_reg_bits(state, 0xd417, 4, 1, 1); | |
304 | if (ret) | |
305 | goto err; | |
306 | ||
307 | /* start reset mechanism */ | |
308 | ret = af9013_wr_reg(state, 0xaeff, 1); | |
309 | if (ret) | |
310 | goto err; | |
311 | ||
312 | /* wait reset performs */ | |
313 | for (i = 0; i < 150; i++) { | |
314 | ret = af9013_rd_reg_bits(state, 0xd417, 1, 1, &tmp); | |
315 | if (ret) | |
316 | goto err; | |
317 | ||
318 | if (tmp) | |
319 | break; /* reset done */ | |
320 | ||
321 | usleep_range(5000, 25000); | |
825b9670 AP |
322 | } |
323 | ||
f571e004 AP |
324 | if (!tmp) |
325 | return -ETIMEDOUT; | |
825b9670 | 326 | |
f571e004 AP |
327 | if (onoff) { |
328 | /* clear reset */ | |
329 | ret = af9013_wr_reg_bits(state, 0xd417, 1, 1, 0); | |
825b9670 | 330 | if (ret) |
f571e004 AP |
331 | goto err; |
332 | ||
333 | /* disable reset */ | |
334 | ret = af9013_wr_reg_bits(state, 0xd417, 4, 1, 0); | |
335 | ||
336 | /* power on */ | |
337 | ret = af9013_wr_reg_bits(state, 0xd73a, 3, 1, 0); | |
338 | } else { | |
339 | /* power off */ | |
340 | ret = af9013_wr_reg_bits(state, 0xd73a, 3, 1, 1); | |
825b9670 AP |
341 | } |
342 | ||
f571e004 AP |
343 | return ret; |
344 | err: | |
8df379c5 | 345 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
825b9670 AP |
346 | return ret; |
347 | } | |
348 | ||
f571e004 | 349 | static int af9013_statistics_ber_unc_start(struct dvb_frontend *fe) |
825b9670 | 350 | { |
f571e004 | 351 | struct af9013_state *state = fe->demodulator_priv; |
825b9670 | 352 | int ret; |
825b9670 | 353 | |
8df379c5 | 354 | dev_dbg(&state->i2c->dev, "%s:\n", __func__); |
825b9670 | 355 | |
f571e004 AP |
356 | /* reset and start BER counter */ |
357 | ret = af9013_wr_reg_bits(state, 0xd391, 4, 1, 1); | |
358 | if (ret) | |
359 | goto err; | |
360 | ||
361 | return ret; | |
362 | err: | |
8df379c5 | 363 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
f571e004 AP |
364 | return ret; |
365 | } | |
366 | ||
367 | static int af9013_statistics_ber_unc_result(struct dvb_frontend *fe) | |
368 | { | |
369 | struct af9013_state *state = fe->demodulator_priv; | |
370 | int ret; | |
371 | u8 buf[5]; | |
372 | ||
8df379c5 | 373 | dev_dbg(&state->i2c->dev, "%s:\n", __func__); |
f571e004 AP |
374 | |
375 | /* check if error bit count is ready */ | |
376 | ret = af9013_rd_reg_bits(state, 0xd391, 4, 1, &buf[0]); | |
377 | if (ret) | |
378 | goto err; | |
379 | ||
380 | if (!buf[0]) { | |
8df379c5 | 381 | dev_dbg(&state->i2c->dev, "%s: not ready\n", __func__); |
f571e004 AP |
382 | return 0; |
383 | } | |
384 | ||
385 | ret = af9013_rd_regs(state, 0xd387, buf, 5); | |
386 | if (ret) | |
387 | goto err; | |
388 | ||
389 | state->ber = (buf[2] << 16) | (buf[1] << 8) | buf[0]; | |
390 | state->ucblocks += (buf[4] << 8) | buf[3]; | |
391 | ||
392 | return ret; | |
393 | err: | |
8df379c5 | 394 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
f571e004 AP |
395 | return ret; |
396 | } | |
397 | ||
398 | static int af9013_statistics_snr_start(struct dvb_frontend *fe) | |
399 | { | |
400 | struct af9013_state *state = fe->demodulator_priv; | |
401 | int ret; | |
402 | ||
8df379c5 | 403 | dev_dbg(&state->i2c->dev, "%s:\n", __func__); |
f571e004 AP |
404 | |
405 | /* start SNR meas */ | |
406 | ret = af9013_wr_reg_bits(state, 0xd2e1, 3, 1, 1); | |
407 | if (ret) | |
408 | goto err; | |
409 | ||
410 | return ret; | |
411 | err: | |
8df379c5 | 412 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
f571e004 AP |
413 | return ret; |
414 | } | |
415 | ||
416 | static int af9013_statistics_snr_result(struct dvb_frontend *fe) | |
417 | { | |
418 | struct af9013_state *state = fe->demodulator_priv; | |
419 | int ret, i, len; | |
420 | u8 buf[3], tmp; | |
421 | u32 snr_val; | |
422 | const struct af9013_snr *uninitialized_var(snr_lut); | |
423 | ||
8df379c5 | 424 | dev_dbg(&state->i2c->dev, "%s:\n", __func__); |
f571e004 AP |
425 | |
426 | /* check if SNR ready */ | |
427 | ret = af9013_rd_reg_bits(state, 0xd2e1, 3, 1, &tmp); | |
428 | if (ret) | |
429 | goto err; | |
430 | ||
431 | if (!tmp) { | |
8df379c5 | 432 | dev_dbg(&state->i2c->dev, "%s: not ready\n", __func__); |
f571e004 AP |
433 | return 0; |
434 | } | |
435 | ||
436 | /* read value */ | |
437 | ret = af9013_rd_regs(state, 0xd2e3, buf, 3); | |
438 | if (ret) | |
439 | goto err; | |
440 | ||
441 | snr_val = (buf[2] << 16) | (buf[1] << 8) | buf[0]; | |
442 | ||
443 | /* read current modulation */ | |
444 | ret = af9013_rd_reg(state, 0xd3c1, &tmp); | |
445 | if (ret) | |
446 | goto err; | |
447 | ||
448 | switch ((tmp >> 6) & 3) { | |
449 | case 0: | |
450 | len = ARRAY_SIZE(qpsk_snr_lut); | |
451 | snr_lut = qpsk_snr_lut; | |
825b9670 | 452 | break; |
f571e004 AP |
453 | case 1: |
454 | len = ARRAY_SIZE(qam16_snr_lut); | |
455 | snr_lut = qam16_snr_lut; | |
825b9670 | 456 | break; |
f571e004 AP |
457 | case 2: |
458 | len = ARRAY_SIZE(qam64_snr_lut); | |
459 | snr_lut = qam64_snr_lut; | |
825b9670 AP |
460 | break; |
461 | default: | |
f571e004 AP |
462 | goto err; |
463 | break; | |
825b9670 AP |
464 | } |
465 | ||
f571e004 AP |
466 | for (i = 0; i < len; i++) { |
467 | tmp = snr_lut[i].snr; | |
825b9670 | 468 | |
f571e004 AP |
469 | if (snr_val < snr_lut[i].val) |
470 | break; | |
471 | } | |
472 | state->snr = tmp * 10; /* dB/10 */ | |
825b9670 | 473 | |
f571e004 AP |
474 | return ret; |
475 | err: | |
8df379c5 | 476 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
f571e004 AP |
477 | return ret; |
478 | } | |
825b9670 | 479 | |
f571e004 AP |
480 | static int af9013_statistics_signal_strength(struct dvb_frontend *fe) |
481 | { | |
482 | struct af9013_state *state = fe->demodulator_priv; | |
483 | int ret = 0; | |
484 | u8 buf[2], rf_gain, if_gain; | |
485 | int signal_strength; | |
486 | ||
8df379c5 | 487 | dev_dbg(&state->i2c->dev, "%s:\n", __func__); |
f571e004 AP |
488 | |
489 | if (!state->signal_strength_en) | |
490 | return 0; | |
491 | ||
492 | ret = af9013_rd_regs(state, 0xd07c, buf, 2); | |
493 | if (ret) | |
494 | goto err; | |
495 | ||
496 | rf_gain = buf[0]; | |
497 | if_gain = buf[1]; | |
498 | ||
499 | signal_strength = (0xffff / \ | |
500 | (9 * (state->rf_50 + state->if_50) - \ | |
501 | 11 * (state->rf_80 + state->if_80))) * \ | |
502 | (10 * (rf_gain + if_gain) - \ | |
503 | 11 * (state->rf_80 + state->if_80)); | |
504 | if (signal_strength < 0) | |
505 | signal_strength = 0; | |
506 | else if (signal_strength > 0xffff) | |
507 | signal_strength = 0xffff; | |
508 | ||
509 | state->signal_strength = signal_strength; | |
510 | ||
511 | return ret; | |
512 | err: | |
8df379c5 | 513 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
825b9670 AP |
514 | return ret; |
515 | } | |
516 | ||
f571e004 | 517 | static void af9013_statistics_work(struct work_struct *work) |
825b9670 | 518 | { |
f571e004 AP |
519 | struct af9013_state *state = container_of(work, |
520 | struct af9013_state, statistics_work.work); | |
521 | unsigned int next_msec; | |
522 | ||
523 | /* update only signal strength when demod is not locked */ | |
524 | if (!(state->fe_status & FE_HAS_LOCK)) { | |
525 | state->statistics_step = 0; | |
526 | state->ber = 0; | |
527 | state->snr = 0; | |
528 | } | |
529 | ||
530 | switch (state->statistics_step) { | |
531 | default: | |
532 | state->statistics_step = 0; | |
533 | case 0: | |
fdf07b02 | 534 | af9013_statistics_signal_strength(&state->fe); |
f571e004 AP |
535 | state->statistics_step++; |
536 | next_msec = 300; | |
537 | break; | |
538 | case 1: | |
fdf07b02 | 539 | af9013_statistics_snr_start(&state->fe); |
f571e004 AP |
540 | state->statistics_step++; |
541 | next_msec = 200; | |
542 | break; | |
543 | case 2: | |
fdf07b02 | 544 | af9013_statistics_ber_unc_start(&state->fe); |
f571e004 AP |
545 | state->statistics_step++; |
546 | next_msec = 1000; | |
547 | break; | |
548 | case 3: | |
fdf07b02 | 549 | af9013_statistics_snr_result(&state->fe); |
f571e004 AP |
550 | state->statistics_step++; |
551 | next_msec = 400; | |
552 | break; | |
553 | case 4: | |
fdf07b02 | 554 | af9013_statistics_ber_unc_result(&state->fe); |
f571e004 AP |
555 | state->statistics_step++; |
556 | next_msec = 100; | |
557 | break; | |
558 | } | |
559 | ||
560 | schedule_delayed_work(&state->statistics_work, | |
561 | msecs_to_jiffies(next_msec)); | |
f571e004 AP |
562 | } |
563 | ||
564 | static int af9013_get_tune_settings(struct dvb_frontend *fe, | |
565 | struct dvb_frontend_tune_settings *fesettings) | |
566 | { | |
567 | fesettings->min_delay_ms = 800; | |
568 | fesettings->step_size = 0; | |
569 | fesettings->max_drift = 0; | |
570 | ||
571 | return 0; | |
572 | } | |
573 | ||
59d3cc19 | 574 | static int af9013_set_frontend(struct dvb_frontend *fe) |
f571e004 AP |
575 | { |
576 | struct af9013_state *state = fe->demodulator_priv; | |
577 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
578 | int ret, i, sampling_freq; | |
579 | bool auto_mode, spec_inv; | |
580 | u8 buf[6]; | |
581 | u32 if_frequency, freq_cw; | |
582 | ||
8df379c5 AP |
583 | dev_dbg(&state->i2c->dev, "%s: frequency=%d bandwidth_hz=%d\n", |
584 | __func__, c->frequency, c->bandwidth_hz); | |
f571e004 AP |
585 | |
586 | /* program tuner */ | |
587 | if (fe->ops.tuner_ops.set_params) | |
14d24d14 | 588 | fe->ops.tuner_ops.set_params(fe); |
f571e004 AP |
589 | |
590 | /* program CFOE coefficients */ | |
591 | if (c->bandwidth_hz != state->bandwidth_hz) { | |
592 | for (i = 0; i < ARRAY_SIZE(coeff_lut); i++) { | |
593 | if (coeff_lut[i].clock == state->config.clock && | |
594 | coeff_lut[i].bandwidth_hz == c->bandwidth_hz) { | |
595 | break; | |
596 | } | |
825b9670 AP |
597 | } |
598 | ||
f571e004 AP |
599 | ret = af9013_wr_regs(state, 0xae00, coeff_lut[i].val, |
600 | sizeof(coeff_lut[i].val)); | |
601 | } | |
6d42b218 | 602 | |
f571e004 AP |
603 | /* program frequency control */ |
604 | if (c->bandwidth_hz != state->bandwidth_hz || state->first_tune) { | |
6d42b218 AP |
605 | /* get used IF frequency */ |
606 | if (fe->ops.tuner_ops.get_if_frequency) | |
f571e004 | 607 | fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency); |
6d42b218 | 608 | else |
f571e004 | 609 | if_frequency = state->config.if_frequency; |
825b9670 | 610 | |
8df379c5 AP |
611 | dev_dbg(&state->i2c->dev, "%s: if_frequency=%d\n", |
612 | __func__, if_frequency); | |
ab2e06ac | 613 | |
f571e004 | 614 | sampling_freq = if_frequency; |
825b9670 | 615 | |
f571e004 AP |
616 | while (sampling_freq > (state->config.clock / 2)) |
617 | sampling_freq -= state->config.clock; | |
825b9670 | 618 | |
f571e004 AP |
619 | if (sampling_freq < 0) { |
620 | sampling_freq *= -1; | |
621 | spec_inv = state->config.spec_inv; | |
622 | } else { | |
623 | spec_inv = !state->config.spec_inv; | |
624 | } | |
825b9670 | 625 | |
8df379c5 AP |
626 | freq_cw = af9013_div(state, sampling_freq, state->config.clock, |
627 | 23); | |
825b9670 | 628 | |
f571e004 AP |
629 | if (spec_inv) |
630 | freq_cw = 0x800000 - freq_cw; | |
825b9670 | 631 | |
f571e004 AP |
632 | buf[0] = (freq_cw >> 0) & 0xff; |
633 | buf[1] = (freq_cw >> 8) & 0xff; | |
634 | buf[2] = (freq_cw >> 16) & 0x7f; | |
825b9670 | 635 | |
f571e004 | 636 | freq_cw = 0x800000 - freq_cw; |
825b9670 | 637 | |
f571e004 AP |
638 | buf[3] = (freq_cw >> 0) & 0xff; |
639 | buf[4] = (freq_cw >> 8) & 0xff; | |
640 | buf[5] = (freq_cw >> 16) & 0x7f; | |
641 | ||
642 | ret = af9013_wr_regs(state, 0xd140, buf, 3); | |
643 | if (ret) | |
644 | goto err; | |
645 | ||
646 | ret = af9013_wr_regs(state, 0x9be7, buf, 6); | |
647 | if (ret) | |
648 | goto err; | |
825b9670 | 649 | } |
825b9670 | 650 | |
f571e004 AP |
651 | /* clear TPS lock flag */ |
652 | ret = af9013_wr_reg_bits(state, 0xd330, 3, 1, 1); | |
653 | if (ret) | |
654 | goto err; | |
825b9670 | 655 | |
f571e004 AP |
656 | /* clear MPEG2 lock flag */ |
657 | ret = af9013_wr_reg_bits(state, 0xd507, 6, 1, 0); | |
658 | if (ret) | |
659 | goto err; | |
a2f5a811 | 660 | |
f571e004 AP |
661 | /* empty channel function */ |
662 | ret = af9013_wr_reg_bits(state, 0x9bfe, 0, 1, 0); | |
663 | if (ret) | |
664 | goto err; | |
665 | ||
666 | /* empty DVB-T channel function */ | |
667 | ret = af9013_wr_reg_bits(state, 0x9bc2, 0, 1, 0); | |
668 | if (ret) | |
669 | goto err; | |
670 | ||
671 | /* transmission parameters */ | |
672 | auto_mode = false; | |
673 | memset(buf, 0, 3); | |
674 | ||
675 | switch (c->transmission_mode) { | |
825b9670 | 676 | case TRANSMISSION_MODE_AUTO: |
f571e004 AP |
677 | auto_mode = 1; |
678 | break; | |
825b9670 AP |
679 | case TRANSMISSION_MODE_2K: |
680 | break; | |
681 | case TRANSMISSION_MODE_8K: | |
682 | buf[0] |= (1 << 0); | |
683 | break; | |
684 | default: | |
8df379c5 AP |
685 | dev_dbg(&state->i2c->dev, "%s: invalid transmission_mode\n", |
686 | __func__); | |
f571e004 | 687 | auto_mode = 1; |
825b9670 AP |
688 | } |
689 | ||
f571e004 | 690 | switch (c->guard_interval) { |
825b9670 | 691 | case GUARD_INTERVAL_AUTO: |
f571e004 AP |
692 | auto_mode = 1; |
693 | break; | |
825b9670 AP |
694 | case GUARD_INTERVAL_1_32: |
695 | break; | |
696 | case GUARD_INTERVAL_1_16: | |
697 | buf[0] |= (1 << 2); | |
698 | break; | |
699 | case GUARD_INTERVAL_1_8: | |
700 | buf[0] |= (2 << 2); | |
701 | break; | |
702 | case GUARD_INTERVAL_1_4: | |
703 | buf[0] |= (3 << 2); | |
704 | break; | |
705 | default: | |
8df379c5 AP |
706 | dev_dbg(&state->i2c->dev, "%s: invalid guard_interval\n", |
707 | __func__); | |
f571e004 | 708 | auto_mode = 1; |
825b9670 AP |
709 | } |
710 | ||
f571e004 | 711 | switch (c->hierarchy) { |
825b9670 | 712 | case HIERARCHY_AUTO: |
f571e004 AP |
713 | auto_mode = 1; |
714 | break; | |
825b9670 AP |
715 | case HIERARCHY_NONE: |
716 | break; | |
717 | case HIERARCHY_1: | |
718 | buf[0] |= (1 << 4); | |
719 | break; | |
720 | case HIERARCHY_2: | |
721 | buf[0] |= (2 << 4); | |
722 | break; | |
723 | case HIERARCHY_4: | |
724 | buf[0] |= (3 << 4); | |
725 | break; | |
726 | default: | |
8df379c5 | 727 | dev_dbg(&state->i2c->dev, "%s: invalid hierarchy\n", __func__); |
f571e004 | 728 | auto_mode = 1; |
c2c1b415 | 729 | } |
825b9670 | 730 | |
f571e004 | 731 | switch (c->modulation) { |
825b9670 | 732 | case QAM_AUTO: |
f571e004 AP |
733 | auto_mode = 1; |
734 | break; | |
825b9670 AP |
735 | case QPSK: |
736 | break; | |
737 | case QAM_16: | |
738 | buf[1] |= (1 << 6); | |
739 | break; | |
740 | case QAM_64: | |
741 | buf[1] |= (2 << 6); | |
742 | break; | |
743 | default: | |
8df379c5 | 744 | dev_dbg(&state->i2c->dev, "%s: invalid modulation\n", __func__); |
f571e004 | 745 | auto_mode = 1; |
825b9670 AP |
746 | } |
747 | ||
748 | /* Use HP. How and which case we can switch to LP? */ | |
749 | buf[1] |= (1 << 4); | |
750 | ||
f571e004 | 751 | switch (c->code_rate_HP) { |
825b9670 | 752 | case FEC_AUTO: |
f571e004 AP |
753 | auto_mode = 1; |
754 | break; | |
825b9670 AP |
755 | case FEC_1_2: |
756 | break; | |
757 | case FEC_2_3: | |
758 | buf[2] |= (1 << 0); | |
759 | break; | |
760 | case FEC_3_4: | |
761 | buf[2] |= (2 << 0); | |
762 | break; | |
763 | case FEC_5_6: | |
764 | buf[2] |= (3 << 0); | |
765 | break; | |
766 | case FEC_7_8: | |
767 | buf[2] |= (4 << 0); | |
768 | break; | |
769 | default: | |
8df379c5 AP |
770 | dev_dbg(&state->i2c->dev, "%s: invalid code_rate_HP\n", |
771 | __func__); | |
f571e004 | 772 | auto_mode = 1; |
825b9670 AP |
773 | } |
774 | ||
f571e004 | 775 | switch (c->code_rate_LP) { |
825b9670 | 776 | case FEC_AUTO: |
f571e004 AP |
777 | auto_mode = 1; |
778 | break; | |
825b9670 AP |
779 | case FEC_1_2: |
780 | break; | |
781 | case FEC_2_3: | |
782 | buf[2] |= (1 << 3); | |
783 | break; | |
784 | case FEC_3_4: | |
785 | buf[2] |= (2 << 3); | |
786 | break; | |
787 | case FEC_5_6: | |
788 | buf[2] |= (3 << 3); | |
789 | break; | |
790 | case FEC_7_8: | |
791 | buf[2] |= (4 << 3); | |
792 | break; | |
793 | case FEC_NONE: | |
f571e004 | 794 | break; |
825b9670 | 795 | default: |
8df379c5 AP |
796 | dev_dbg(&state->i2c->dev, "%s: invalid code_rate_LP\n", |
797 | __func__); | |
f571e004 | 798 | auto_mode = 1; |
825b9670 AP |
799 | } |
800 | ||
f571e004 AP |
801 | switch (c->bandwidth_hz) { |
802 | case 6000000: | |
825b9670 | 803 | break; |
f571e004 | 804 | case 7000000: |
825b9670 AP |
805 | buf[1] |= (1 << 2); |
806 | break; | |
f571e004 | 807 | case 8000000: |
825b9670 AP |
808 | buf[1] |= (2 << 2); |
809 | break; | |
810 | default: | |
8df379c5 AP |
811 | dev_dbg(&state->i2c->dev, "%s: invalid bandwidth_hz\n", |
812 | __func__); | |
f571e004 AP |
813 | ret = -EINVAL; |
814 | goto err; | |
825b9670 AP |
815 | } |
816 | ||
f571e004 | 817 | ret = af9013_wr_regs(state, 0xd3c0, buf, 3); |
825b9670 | 818 | if (ret) |
f571e004 | 819 | goto err; |
825b9670 | 820 | |
f571e004 AP |
821 | if (auto_mode) { |
822 | /* clear easy mode flag */ | |
823 | ret = af9013_wr_reg(state, 0xaefd, 0); | |
825b9670 | 824 | if (ret) |
f571e004 | 825 | goto err; |
825b9670 | 826 | |
8df379c5 | 827 | dev_dbg(&state->i2c->dev, "%s: auto params\n", __func__); |
825b9670 | 828 | } else { |
f571e004 AP |
829 | /* set easy mode flag */ |
830 | ret = af9013_wr_reg(state, 0xaefd, 1); | |
825b9670 | 831 | if (ret) |
f571e004 | 832 | goto err; |
825b9670 | 833 | |
f571e004 | 834 | ret = af9013_wr_reg(state, 0xaefe, 0); |
825b9670 | 835 | if (ret) |
f571e004 AP |
836 | goto err; |
837 | ||
8df379c5 | 838 | dev_dbg(&state->i2c->dev, "%s: manual params\n", __func__); |
825b9670 | 839 | } |
825b9670 | 840 | |
f571e004 AP |
841 | /* tune */ |
842 | ret = af9013_wr_reg(state, 0xffff, 0); | |
825b9670 | 843 | if (ret) |
f571e004 AP |
844 | goto err; |
845 | ||
846 | state->bandwidth_hz = c->bandwidth_hz; | |
847 | state->set_frontend_jiffies = jiffies; | |
848 | state->first_tune = false; | |
825b9670 | 849 | |
f571e004 AP |
850 | return ret; |
851 | err: | |
8df379c5 | 852 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
825b9670 AP |
853 | return ret; |
854 | } | |
855 | ||
7c61d80a | 856 | static int af9013_get_frontend(struct dvb_frontend *fe) |
825b9670 | 857 | { |
7c61d80a | 858 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
825b9670 AP |
859 | struct af9013_state *state = fe->demodulator_priv; |
860 | int ret; | |
f571e004 | 861 | u8 buf[3]; |
825b9670 | 862 | |
8df379c5 | 863 | dev_dbg(&state->i2c->dev, "%s:\n", __func__); |
f571e004 AP |
864 | |
865 | ret = af9013_rd_regs(state, 0xd3c0, buf, 3); | |
866 | if (ret) | |
867 | goto err; | |
825b9670 AP |
868 | |
869 | switch ((buf[1] >> 6) & 3) { | |
870 | case 0: | |
f571e004 | 871 | c->modulation = QPSK; |
825b9670 AP |
872 | break; |
873 | case 1: | |
f571e004 | 874 | c->modulation = QAM_16; |
825b9670 AP |
875 | break; |
876 | case 2: | |
f571e004 | 877 | c->modulation = QAM_64; |
825b9670 AP |
878 | break; |
879 | } | |
880 | ||
881 | switch ((buf[0] >> 0) & 3) { | |
882 | case 0: | |
f571e004 | 883 | c->transmission_mode = TRANSMISSION_MODE_2K; |
825b9670 AP |
884 | break; |
885 | case 1: | |
f571e004 | 886 | c->transmission_mode = TRANSMISSION_MODE_8K; |
825b9670 AP |
887 | } |
888 | ||
889 | switch ((buf[0] >> 2) & 3) { | |
890 | case 0: | |
6a2329ad | 891 | c->guard_interval = GUARD_INTERVAL_1_32; |
825b9670 AP |
892 | break; |
893 | case 1: | |
6a2329ad | 894 | c->guard_interval = GUARD_INTERVAL_1_16; |
825b9670 AP |
895 | break; |
896 | case 2: | |
6a2329ad | 897 | c->guard_interval = GUARD_INTERVAL_1_8; |
825b9670 AP |
898 | break; |
899 | case 3: | |
6a2329ad | 900 | c->guard_interval = GUARD_INTERVAL_1_4; |
825b9670 AP |
901 | break; |
902 | } | |
903 | ||
904 | switch ((buf[0] >> 4) & 7) { | |
905 | case 0: | |
f571e004 | 906 | c->hierarchy = HIERARCHY_NONE; |
825b9670 AP |
907 | break; |
908 | case 1: | |
f571e004 | 909 | c->hierarchy = HIERARCHY_1; |
825b9670 AP |
910 | break; |
911 | case 2: | |
f571e004 | 912 | c->hierarchy = HIERARCHY_2; |
825b9670 AP |
913 | break; |
914 | case 3: | |
f571e004 | 915 | c->hierarchy = HIERARCHY_4; |
825b9670 AP |
916 | break; |
917 | } | |
918 | ||
919 | switch ((buf[2] >> 0) & 7) { | |
920 | case 0: | |
f571e004 | 921 | c->code_rate_HP = FEC_1_2; |
825b9670 AP |
922 | break; |
923 | case 1: | |
f571e004 AP |
924 | c->code_rate_HP = FEC_2_3; |
925 | break; | |
926 | case 2: | |
927 | c->code_rate_HP = FEC_3_4; | |
928 | break; | |
929 | case 3: | |
930 | c->code_rate_HP = FEC_5_6; | |
931 | break; | |
932 | case 4: | |
933 | c->code_rate_HP = FEC_7_8; | |
934 | break; | |
825b9670 AP |
935 | } |
936 | ||
f571e004 AP |
937 | switch ((buf[2] >> 3) & 7) { |
938 | case 0: | |
939 | c->code_rate_LP = FEC_1_2; | |
940 | break; | |
941 | case 1: | |
942 | c->code_rate_LP = FEC_2_3; | |
943 | break; | |
944 | case 2: | |
945 | c->code_rate_LP = FEC_3_4; | |
946 | break; | |
947 | case 3: | |
948 | c->code_rate_LP = FEC_5_6; | |
949 | break; | |
950 | case 4: | |
951 | c->code_rate_LP = FEC_7_8; | |
952 | break; | |
953 | } | |
825b9670 | 954 | |
f571e004 AP |
955 | switch ((buf[1] >> 2) & 3) { |
956 | case 0: | |
957 | c->bandwidth_hz = 6000000; | |
958 | break; | |
959 | case 1: | |
960 | c->bandwidth_hz = 7000000; | |
961 | break; | |
962 | case 2: | |
963 | c->bandwidth_hz = 8000000; | |
964 | break; | |
825b9670 AP |
965 | } |
966 | ||
825b9670 | 967 | return ret; |
f571e004 | 968 | err: |
8df379c5 | 969 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
825b9670 AP |
970 | return ret; |
971 | } | |
972 | ||
825b9670 AP |
973 | static int af9013_read_status(struct dvb_frontend *fe, fe_status_t *status) |
974 | { | |
975 | struct af9013_state *state = fe->demodulator_priv; | |
f571e004 | 976 | int ret; |
825b9670 | 977 | u8 tmp; |
f571e004 AP |
978 | |
979 | /* | |
980 | * Return status from the cache if it is younger than 2000ms with the | |
981 | * exception of last tune is done during 4000ms. | |
982 | */ | |
983 | if (time_is_after_jiffies( | |
984 | state->read_status_jiffies + msecs_to_jiffies(2000)) && | |
985 | time_is_before_jiffies( | |
986 | state->set_frontend_jiffies + msecs_to_jiffies(4000)) | |
987 | ) { | |
988 | *status = state->fe_status; | |
989 | return 0; | |
990 | } else { | |
991 | *status = 0; | |
992 | } | |
825b9670 | 993 | |
825b9670 | 994 | /* MPEG2 lock */ |
f571e004 | 995 | ret = af9013_rd_reg_bits(state, 0xd507, 6, 1, &tmp); |
825b9670 | 996 | if (ret) |
f571e004 AP |
997 | goto err; |
998 | ||
825b9670 | 999 | if (tmp) |
8af5e381 AP |
1000 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | |
1001 | FE_HAS_SYNC | FE_HAS_LOCK; | |
825b9670 | 1002 | |
8af5e381 AP |
1003 | if (!*status) { |
1004 | /* TPS lock */ | |
f571e004 | 1005 | ret = af9013_rd_reg_bits(state, 0xd330, 3, 1, &tmp); |
825b9670 | 1006 | if (ret) |
f571e004 AP |
1007 | goto err; |
1008 | ||
825b9670 | 1009 | if (tmp) |
8af5e381 AP |
1010 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | |
1011 | FE_HAS_VITERBI; | |
825b9670 AP |
1012 | } |
1013 | ||
f571e004 AP |
1014 | state->fe_status = *status; |
1015 | state->read_status_jiffies = jiffies; | |
825b9670 | 1016 | |
f571e004 AP |
1017 | return ret; |
1018 | err: | |
8df379c5 | 1019 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
825b9670 AP |
1020 | return ret; |
1021 | } | |
1022 | ||
f571e004 | 1023 | static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr) |
825b9670 AP |
1024 | { |
1025 | struct af9013_state *state = fe->demodulator_priv; | |
f571e004 AP |
1026 | *snr = state->snr; |
1027 | return 0; | |
825b9670 AP |
1028 | } |
1029 | ||
1030 | static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength) | |
1031 | { | |
1032 | struct af9013_state *state = fe->demodulator_priv; | |
825b9670 | 1033 | *strength = state->signal_strength; |
f571e004 | 1034 | return 0; |
825b9670 AP |
1035 | } |
1036 | ||
f571e004 | 1037 | static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber) |
825b9670 AP |
1038 | { |
1039 | struct af9013_state *state = fe->demodulator_priv; | |
f571e004 AP |
1040 | *ber = state->ber; |
1041 | return 0; | |
825b9670 AP |
1042 | } |
1043 | ||
1044 | static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) | |
1045 | { | |
1046 | struct af9013_state *state = fe->demodulator_priv; | |
825b9670 | 1047 | *ucblocks = state->ucblocks; |
f571e004 | 1048 | return 0; |
825b9670 AP |
1049 | } |
1050 | ||
1051 | static int af9013_init(struct dvb_frontend *fe) | |
1052 | { | |
1053 | struct af9013_state *state = fe->demodulator_priv; | |
1054 | int ret, i, len; | |
f571e004 AP |
1055 | u8 buf[3], tmp; |
1056 | u32 adc_cw; | |
1057 | const struct af9013_reg_bit *init; | |
825b9670 | 1058 | |
8df379c5 | 1059 | dev_dbg(&state->i2c->dev, "%s:\n", __func__); |
825b9670 AP |
1060 | |
1061 | /* power on */ | |
1062 | ret = af9013_power_ctrl(state, 1); | |
1063 | if (ret) | |
f571e004 | 1064 | goto err; |
825b9670 AP |
1065 | |
1066 | /* enable ADC */ | |
f571e004 | 1067 | ret = af9013_wr_reg(state, 0xd73a, 0xa4); |
825b9670 | 1068 | if (ret) |
f571e004 | 1069 | goto err; |
825b9670 AP |
1070 | |
1071 | /* write API version to firmware */ | |
f571e004 AP |
1072 | ret = af9013_wr_regs(state, 0x9bf2, state->config.api_version, 4); |
1073 | if (ret) | |
1074 | goto err; | |
825b9670 AP |
1075 | |
1076 | /* program ADC control */ | |
f571e004 AP |
1077 | switch (state->config.clock) { |
1078 | case 28800000: /* 28.800 MHz */ | |
1079 | tmp = 0; | |
1080 | break; | |
1081 | case 20480000: /* 20.480 MHz */ | |
1082 | tmp = 1; | |
1083 | break; | |
1084 | case 28000000: /* 28.000 MHz */ | |
1085 | tmp = 2; | |
1086 | break; | |
1087 | case 25000000: /* 25.000 MHz */ | |
1088 | tmp = 3; | |
1089 | break; | |
1090 | default: | |
8df379c5 AP |
1091 | dev_err(&state->i2c->dev, "%s: invalid clock\n", |
1092 | KBUILD_MODNAME); | |
f571e004 AP |
1093 | return -EINVAL; |
1094 | } | |
1095 | ||
8df379c5 | 1096 | adc_cw = af9013_div(state, state->config.clock, 1000000ul, 19); |
f571e004 AP |
1097 | buf[0] = (adc_cw >> 0) & 0xff; |
1098 | buf[1] = (adc_cw >> 8) & 0xff; | |
1099 | buf[2] = (adc_cw >> 16) & 0xff; | |
1100 | ||
1101 | ret = af9013_wr_regs(state, 0xd180, buf, 3); | |
1102 | if (ret) | |
1103 | goto err; | |
1104 | ||
1105 | ret = af9013_wr_reg_bits(state, 0x9bd2, 0, 4, tmp); | |
825b9670 | 1106 | if (ret) |
f571e004 | 1107 | goto err; |
825b9670 AP |
1108 | |
1109 | /* set I2C master clock */ | |
f571e004 | 1110 | ret = af9013_wr_reg(state, 0xd416, 0x14); |
825b9670 | 1111 | if (ret) |
f571e004 | 1112 | goto err; |
825b9670 AP |
1113 | |
1114 | /* set 16 embx */ | |
f571e004 | 1115 | ret = af9013_wr_reg_bits(state, 0xd700, 1, 1, 1); |
825b9670 | 1116 | if (ret) |
f571e004 | 1117 | goto err; |
825b9670 AP |
1118 | |
1119 | /* set no trigger */ | |
f571e004 | 1120 | ret = af9013_wr_reg_bits(state, 0xd700, 2, 1, 0); |
825b9670 | 1121 | if (ret) |
f571e004 | 1122 | goto err; |
825b9670 AP |
1123 | |
1124 | /* set read-update bit for constellation */ | |
f571e004 | 1125 | ret = af9013_wr_reg_bits(state, 0xd371, 1, 1, 1); |
825b9670 | 1126 | if (ret) |
f571e004 | 1127 | goto err; |
825b9670 | 1128 | |
f571e004 AP |
1129 | /* settings for mp2if */ |
1130 | if (state->config.ts_mode == AF9013_TS_USB) { | |
1131 | /* AF9015 split PSB to 1.5k + 0.5k */ | |
1132 | ret = af9013_wr_reg_bits(state, 0xd50b, 2, 1, 1); | |
1133 | if (ret) | |
1134 | goto err; | |
1135 | } else { | |
1136 | /* AF9013 change the output bit to data7 */ | |
1137 | ret = af9013_wr_reg_bits(state, 0xd500, 3, 1, 1); | |
1138 | if (ret) | |
1139 | goto err; | |
1140 | ||
1141 | /* AF9013 set mpeg to full speed */ | |
1142 | ret = af9013_wr_reg_bits(state, 0xd502, 4, 1, 1); | |
1143 | if (ret) | |
1144 | goto err; | |
1145 | } | |
1146 | ||
1147 | ret = af9013_wr_reg_bits(state, 0xd520, 4, 1, 1); | |
825b9670 | 1148 | if (ret) |
f571e004 | 1149 | goto err; |
825b9670 AP |
1150 | |
1151 | /* load OFSM settings */ | |
8df379c5 | 1152 | dev_dbg(&state->i2c->dev, "%s: load ofsm settings\n", __func__); |
825b9670 AP |
1153 | len = ARRAY_SIZE(ofsm_init); |
1154 | init = ofsm_init; | |
1155 | for (i = 0; i < len; i++) { | |
f571e004 | 1156 | ret = af9013_wr_reg_bits(state, init[i].addr, init[i].pos, |
825b9670 AP |
1157 | init[i].len, init[i].val); |
1158 | if (ret) | |
f571e004 | 1159 | goto err; |
825b9670 AP |
1160 | } |
1161 | ||
1162 | /* load tuner specific settings */ | |
8df379c5 AP |
1163 | dev_dbg(&state->i2c->dev, "%s: load tuner specific settings\n", |
1164 | __func__); | |
825b9670 AP |
1165 | switch (state->config.tuner) { |
1166 | case AF9013_TUNER_MXL5003D: | |
1167 | len = ARRAY_SIZE(tuner_init_mxl5003d); | |
1168 | init = tuner_init_mxl5003d; | |
1169 | break; | |
1170 | case AF9013_TUNER_MXL5005D: | |
1171 | case AF9013_TUNER_MXL5005R: | |
a4f31d0d | 1172 | case AF9013_TUNER_MXL5007T: |
825b9670 AP |
1173 | len = ARRAY_SIZE(tuner_init_mxl5005); |
1174 | init = tuner_init_mxl5005; | |
1175 | break; | |
1176 | case AF9013_TUNER_ENV77H11D5: | |
1177 | len = ARRAY_SIZE(tuner_init_env77h11d5); | |
1178 | init = tuner_init_env77h11d5; | |
1179 | break; | |
1180 | case AF9013_TUNER_MT2060: | |
1181 | len = ARRAY_SIZE(tuner_init_mt2060); | |
1182 | init = tuner_init_mt2060; | |
1183 | break; | |
1184 | case AF9013_TUNER_MC44S803: | |
1185 | len = ARRAY_SIZE(tuner_init_mc44s803); | |
1186 | init = tuner_init_mc44s803; | |
1187 | break; | |
1188 | case AF9013_TUNER_QT1010: | |
1189 | case AF9013_TUNER_QT1010A: | |
1190 | len = ARRAY_SIZE(tuner_init_qt1010); | |
1191 | init = tuner_init_qt1010; | |
1192 | break; | |
1193 | case AF9013_TUNER_MT2060_2: | |
1194 | len = ARRAY_SIZE(tuner_init_mt2060_2); | |
1195 | init = tuner_init_mt2060_2; | |
1196 | break; | |
1197 | case AF9013_TUNER_TDA18271: | |
2158e509 | 1198 | case AF9013_TUNER_TDA18218: |
825b9670 AP |
1199 | len = ARRAY_SIZE(tuner_init_tda18271); |
1200 | init = tuner_init_tda18271; | |
1201 | break; | |
1202 | case AF9013_TUNER_UNKNOWN: | |
1203 | default: | |
1204 | len = ARRAY_SIZE(tuner_init_unknown); | |
1205 | init = tuner_init_unknown; | |
1206 | break; | |
1207 | } | |
1208 | ||
1209 | for (i = 0; i < len; i++) { | |
f571e004 | 1210 | ret = af9013_wr_reg_bits(state, init[i].addr, init[i].pos, |
825b9670 AP |
1211 | init[i].len, init[i].val); |
1212 | if (ret) | |
f571e004 | 1213 | goto err; |
825b9670 AP |
1214 | } |
1215 | ||
f571e004 AP |
1216 | /* TS mode */ |
1217 | ret = af9013_wr_reg_bits(state, 0xd500, 1, 2, state->config.ts_mode); | |
825b9670 | 1218 | if (ret) |
f571e004 | 1219 | goto err; |
825b9670 AP |
1220 | |
1221 | /* enable lock led */ | |
f571e004 | 1222 | ret = af9013_wr_reg_bits(state, 0xd730, 0, 1, 1); |
825b9670 | 1223 | if (ret) |
f571e004 | 1224 | goto err; |
825b9670 | 1225 | |
f571e004 AP |
1226 | /* check if we support signal strength */ |
1227 | if (!state->signal_strength_en) { | |
1228 | ret = af9013_rd_reg_bits(state, 0x9bee, 0, 1, | |
1229 | &state->signal_strength_en); | |
1230 | if (ret) | |
1231 | goto err; | |
1232 | } | |
9e35cd22 | 1233 | |
f571e004 AP |
1234 | /* read values needed for signal strength calculation */ |
1235 | if (state->signal_strength_en && !state->rf_50) { | |
1236 | ret = af9013_rd_reg(state, 0x9bbd, &state->rf_50); | |
9e35cd22 | 1237 | if (ret) |
f571e004 AP |
1238 | goto err; |
1239 | ||
1240 | ret = af9013_rd_reg(state, 0x9bd0, &state->rf_80); | |
9e35cd22 | 1241 | if (ret) |
f571e004 AP |
1242 | goto err; |
1243 | ||
1244 | ret = af9013_rd_reg(state, 0x9be2, &state->if_50); | |
9e35cd22 | 1245 | if (ret) |
f571e004 AP |
1246 | goto err; |
1247 | ||
1248 | ret = af9013_rd_reg(state, 0x9be4, &state->if_80); | |
9e35cd22 | 1249 | if (ret) |
f571e004 | 1250 | goto err; |
9e35cd22 AP |
1251 | } |
1252 | ||
f571e004 AP |
1253 | /* SNR */ |
1254 | ret = af9013_wr_reg(state, 0xd2e2, 1); | |
1255 | if (ret) | |
1256 | goto err; | |
1257 | ||
1258 | /* BER / UCB */ | |
1259 | buf[0] = (10000 >> 0) & 0xff; | |
1260 | buf[1] = (10000 >> 8) & 0xff; | |
1261 | ret = af9013_wr_regs(state, 0xd385, buf, 2); | |
1262 | if (ret) | |
1263 | goto err; | |
1264 | ||
1265 | /* enable FEC monitor */ | |
1266 | ret = af9013_wr_reg_bits(state, 0xd392, 1, 1, 1); | |
1267 | if (ret) | |
1268 | goto err; | |
1269 | ||
1270 | state->first_tune = true; | |
1271 | schedule_delayed_work(&state->statistics_work, msecs_to_jiffies(400)); | |
1272 | ||
1273 | return ret; | |
1274 | err: | |
8df379c5 | 1275 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
f571e004 AP |
1276 | return ret; |
1277 | } | |
1278 | ||
1279 | static int af9013_sleep(struct dvb_frontend *fe) | |
1280 | { | |
1281 | struct af9013_state *state = fe->demodulator_priv; | |
1282 | int ret; | |
1283 | ||
8df379c5 | 1284 | dev_dbg(&state->i2c->dev, "%s:\n", __func__); |
f571e004 AP |
1285 | |
1286 | /* stop statistics polling */ | |
1287 | cancel_delayed_work_sync(&state->statistics_work); | |
1288 | ||
1289 | /* disable lock led */ | |
1290 | ret = af9013_wr_reg_bits(state, 0xd730, 0, 1, 0); | |
1291 | if (ret) | |
1292 | goto err; | |
1293 | ||
1294 | /* power off */ | |
1295 | ret = af9013_power_ctrl(state, 0); | |
1296 | if (ret) | |
1297 | goto err; | |
1298 | ||
1299 | return ret; | |
1300 | err: | |
8df379c5 | 1301 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
f571e004 AP |
1302 | return ret; |
1303 | } | |
1304 | ||
1305 | static int af9013_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) | |
1306 | { | |
1307 | int ret; | |
1308 | struct af9013_state *state = fe->demodulator_priv; | |
1309 | ||
8df379c5 | 1310 | dev_dbg(&state->i2c->dev, "%s: enable=%d\n", __func__, enable); |
f571e004 AP |
1311 | |
1312 | /* gate already open or close */ | |
1313 | if (state->i2c_gate_state == enable) | |
1314 | return 0; | |
1315 | ||
1316 | if (state->config.ts_mode == AF9013_TS_USB) | |
1317 | ret = af9013_wr_reg_bits(state, 0xd417, 3, 1, enable); | |
1318 | else | |
1319 | ret = af9013_wr_reg_bits(state, 0xd607, 2, 1, enable); | |
1320 | if (ret) | |
1321 | goto err; | |
1322 | ||
1323 | state->i2c_gate_state = enable; | |
1324 | ||
1325 | return ret; | |
1326 | err: | |
8df379c5 | 1327 | dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret); |
825b9670 AP |
1328 | return ret; |
1329 | } | |
1330 | ||
f571e004 AP |
1331 | static void af9013_release(struct dvb_frontend *fe) |
1332 | { | |
1333 | struct af9013_state *state = fe->demodulator_priv; | |
1334 | kfree(state); | |
1335 | } | |
1336 | ||
825b9670 AP |
1337 | static struct dvb_frontend_ops af9013_ops; |
1338 | ||
1339 | static int af9013_download_firmware(struct af9013_state *state) | |
1340 | { | |
6ed9d560 | 1341 | int i, len, remaining, ret; |
825b9670 | 1342 | const struct firmware *fw; |
825b9670 AP |
1343 | u16 checksum = 0; |
1344 | u8 val; | |
1345 | u8 fw_params[4]; | |
a71103a6 | 1346 | u8 *fw_file = AF9013_FIRMWARE; |
825b9670 AP |
1347 | |
1348 | msleep(100); | |
1349 | /* check whether firmware is already running */ | |
f571e004 | 1350 | ret = af9013_rd_reg(state, 0x98be, &val); |
825b9670 | 1351 | if (ret) |
f571e004 | 1352 | goto err; |
825b9670 | 1353 | else |
8df379c5 AP |
1354 | dev_dbg(&state->i2c->dev, "%s: firmware status=%02x\n", |
1355 | __func__, val); | |
825b9670 AP |
1356 | |
1357 | if (val == 0x0c) /* fw is running, no need for download */ | |
1358 | goto exit; | |
1359 | ||
8df379c5 AP |
1360 | dev_info(&state->i2c->dev, "%s: found a '%s' in cold state, will try " \ |
1361 | "to load a firmware\n", | |
1362 | KBUILD_MODNAME, af9013_ops.info.name); | |
825b9670 AP |
1363 | |
1364 | /* request the firmware, this will block and timeout */ | |
e9785250 | 1365 | ret = request_firmware(&fw, fw_file, state->i2c->dev.parent); |
825b9670 | 1366 | if (ret) { |
8df379c5 AP |
1367 | dev_info(&state->i2c->dev, "%s: did not find the firmware " \ |
1368 | "file. (%s) Please see linux/Documentation/dvb/ for " \ | |
1369 | "more details on firmware-problems. (%d)\n", | |
1370 | KBUILD_MODNAME, fw_file, ret); | |
f571e004 | 1371 | goto err; |
825b9670 AP |
1372 | } |
1373 | ||
8df379c5 AP |
1374 | dev_info(&state->i2c->dev, "%s: downloading firmware from file '%s'\n", |
1375 | KBUILD_MODNAME, fw_file); | |
825b9670 AP |
1376 | |
1377 | /* calc checksum */ | |
1378 | for (i = 0; i < fw->size; i++) | |
1379 | checksum += fw->data[i]; | |
1380 | ||
1381 | fw_params[0] = checksum >> 8; | |
1382 | fw_params[1] = checksum & 0xff; | |
1383 | fw_params[2] = fw->size >> 8; | |
1384 | fw_params[3] = fw->size & 0xff; | |
1385 | ||
1386 | /* write fw checksum & size */ | |
1387 | ret = af9013_write_ofsm_regs(state, 0x50fc, | |
1388 | fw_params, sizeof(fw_params)); | |
1389 | if (ret) | |
f571e004 | 1390 | goto err_release; |
825b9670 | 1391 | |
6ed9d560 AP |
1392 | #define FW_ADDR 0x5100 /* firmware start address */ |
1393 | #define LEN_MAX 16 /* max packet size */ | |
1394 | for (remaining = fw->size; remaining > 0; remaining -= LEN_MAX) { | |
1395 | len = remaining; | |
1396 | if (len > LEN_MAX) | |
1397 | len = LEN_MAX; | |
825b9670 | 1398 | |
6ed9d560 AP |
1399 | ret = af9013_write_ofsm_regs(state, |
1400 | FW_ADDR + fw->size - remaining, | |
1401 | (u8 *) &fw->data[fw->size - remaining], len); | |
825b9670 | 1402 | if (ret) { |
8df379c5 AP |
1403 | dev_err(&state->i2c->dev, |
1404 | "%s: firmware download failed=%d\n", | |
1405 | KBUILD_MODNAME, ret); | |
f571e004 | 1406 | goto err_release; |
825b9670 AP |
1407 | } |
1408 | } | |
1409 | ||
825b9670 | 1410 | /* request boot firmware */ |
f571e004 | 1411 | ret = af9013_wr_reg(state, 0xe205, 1); |
825b9670 | 1412 | if (ret) |
f571e004 | 1413 | goto err_release; |
825b9670 AP |
1414 | |
1415 | for (i = 0; i < 15; i++) { | |
1416 | msleep(100); | |
1417 | ||
1418 | /* check firmware status */ | |
f571e004 | 1419 | ret = af9013_rd_reg(state, 0x98be, &val); |
825b9670 | 1420 | if (ret) |
f571e004 | 1421 | goto err_release; |
825b9670 | 1422 | |
8df379c5 AP |
1423 | dev_dbg(&state->i2c->dev, "%s: firmware status=%02x\n", |
1424 | __func__, val); | |
825b9670 AP |
1425 | |
1426 | if (val == 0x0c || val == 0x04) /* success or fail */ | |
1427 | break; | |
1428 | } | |
1429 | ||
1430 | if (val == 0x04) { | |
8df379c5 AP |
1431 | dev_err(&state->i2c->dev, "%s: firmware did not run\n", |
1432 | KBUILD_MODNAME); | |
f571e004 | 1433 | ret = -ENODEV; |
825b9670 | 1434 | } else if (val != 0x0c) { |
8df379c5 AP |
1435 | dev_err(&state->i2c->dev, "%s: firmware boot timeout\n", |
1436 | KBUILD_MODNAME); | |
f571e004 | 1437 | ret = -ENODEV; |
825b9670 AP |
1438 | } |
1439 | ||
f571e004 | 1440 | err_release: |
825b9670 | 1441 | release_firmware(fw); |
f571e004 | 1442 | err: |
825b9670 AP |
1443 | exit: |
1444 | if (!ret) | |
8df379c5 AP |
1445 | dev_info(&state->i2c->dev, "%s: found a '%s' in warm state\n", |
1446 | KBUILD_MODNAME, af9013_ops.info.name); | |
825b9670 AP |
1447 | return ret; |
1448 | } | |
1449 | ||
825b9670 AP |
1450 | struct dvb_frontend *af9013_attach(const struct af9013_config *config, |
1451 | struct i2c_adapter *i2c) | |
1452 | { | |
1453 | int ret; | |
1454 | struct af9013_state *state = NULL; | |
ce99efa5 | 1455 | u8 buf[4], i; |
825b9670 AP |
1456 | |
1457 | /* allocate memory for the internal state */ | |
1458 | state = kzalloc(sizeof(struct af9013_state), GFP_KERNEL); | |
1459 | if (state == NULL) | |
f571e004 | 1460 | goto err; |
825b9670 AP |
1461 | |
1462 | /* setup the state */ | |
1463 | state->i2c = i2c; | |
1464 | memcpy(&state->config, config, sizeof(struct af9013_config)); | |
1465 | ||
825b9670 | 1466 | /* download firmware */ |
f571e004 | 1467 | if (state->config.ts_mode != AF9013_TS_USB) { |
825b9670 AP |
1468 | ret = af9013_download_firmware(state); |
1469 | if (ret) | |
f571e004 | 1470 | goto err; |
825b9670 AP |
1471 | } |
1472 | ||
1473 | /* firmware version */ | |
f571e004 | 1474 | ret = af9013_rd_regs(state, 0x5103, buf, 4); |
109a2990 | 1475 | if (ret) |
f571e004 | 1476 | goto err; |
109a2990 | 1477 | |
8df379c5 AP |
1478 | dev_info(&state->i2c->dev, "%s: firmware version %d.%d.%d.%d\n", |
1479 | KBUILD_MODNAME, buf[0], buf[1], buf[2], buf[3]); | |
825b9670 AP |
1480 | |
1481 | /* set GPIOs */ | |
1482 | for (i = 0; i < sizeof(state->config.gpio); i++) { | |
1483 | ret = af9013_set_gpio(state, i, state->config.gpio[i]); | |
1484 | if (ret) | |
f571e004 | 1485 | goto err; |
825b9670 AP |
1486 | } |
1487 | ||
1488 | /* create dvb_frontend */ | |
f571e004 | 1489 | memcpy(&state->fe.ops, &af9013_ops, |
825b9670 | 1490 | sizeof(struct dvb_frontend_ops)); |
f571e004 AP |
1491 | state->fe.demodulator_priv = state; |
1492 | ||
1493 | INIT_DELAYED_WORK(&state->statistics_work, af9013_statistics_work); | |
825b9670 | 1494 | |
f571e004 AP |
1495 | return &state->fe; |
1496 | err: | |
825b9670 AP |
1497 | kfree(state); |
1498 | return NULL; | |
1499 | } | |
1500 | EXPORT_SYMBOL(af9013_attach); | |
1501 | ||
1502 | static struct dvb_frontend_ops af9013_ops = { | |
59d3cc19 | 1503 | .delsys = { SYS_DVBT }, |
825b9670 | 1504 | .info = { |
f571e004 | 1505 | .name = "Afatech AF9013", |
825b9670 AP |
1506 | .frequency_min = 174000000, |
1507 | .frequency_max = 862000000, | |
1508 | .frequency_stepsize = 250000, | |
1509 | .frequency_tolerance = 0, | |
f571e004 AP |
1510 | .caps = FE_CAN_FEC_1_2 | |
1511 | FE_CAN_FEC_2_3 | | |
1512 | FE_CAN_FEC_3_4 | | |
1513 | FE_CAN_FEC_5_6 | | |
1514 | FE_CAN_FEC_7_8 | | |
1515 | FE_CAN_FEC_AUTO | | |
1516 | FE_CAN_QPSK | | |
1517 | FE_CAN_QAM_16 | | |
1518 | FE_CAN_QAM_64 | | |
1519 | FE_CAN_QAM_AUTO | | |
825b9670 AP |
1520 | FE_CAN_TRANSMISSION_MODE_AUTO | |
1521 | FE_CAN_GUARD_INTERVAL_AUTO | | |
1522 | FE_CAN_HIERARCHY_AUTO | | |
1523 | FE_CAN_RECOVER | | |
1524 | FE_CAN_MUTE_TS | |
1525 | }, | |
1526 | ||
1527 | .release = af9013_release, | |
f571e004 | 1528 | |
825b9670 AP |
1529 | .init = af9013_init, |
1530 | .sleep = af9013_sleep, | |
825b9670 | 1531 | |
f571e004 | 1532 | .get_tune_settings = af9013_get_tune_settings, |
59d3cc19 MCC |
1533 | .set_frontend = af9013_set_frontend, |
1534 | .get_frontend = af9013_get_frontend, | |
825b9670 | 1535 | |
825b9670 | 1536 | .read_status = af9013_read_status, |
825b9670 | 1537 | .read_snr = af9013_read_snr, |
f571e004 AP |
1538 | .read_signal_strength = af9013_read_signal_strength, |
1539 | .read_ber = af9013_read_ber, | |
825b9670 | 1540 | .read_ucblocks = af9013_read_ucblocks, |
825b9670 | 1541 | |
f571e004 AP |
1542 | .i2c_gate_ctrl = af9013_i2c_gate_ctrl, |
1543 | }; | |
825b9670 AP |
1544 | |
1545 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
1546 | MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver"); | |
1547 | MODULE_LICENSE("GPL"); | |
a71103a6 | 1548 | MODULE_FIRMWARE(AF9013_FIRMWARE); |