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825b9670 AP |
1 | /* |
2 | * DVB USB Linux driver for Afatech AF9015 DVB-T USB2.0 receiver | |
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 | ||
45 | u16 signal_strength; | |
46 | u32 ber; | |
47 | u32 ucblocks; | |
48 | u16 snr; | |
49 | u32 frequency; | |
50 | unsigned long next_statistics_check; | |
51 | }; | |
52 | ||
53 | static u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff }; | |
54 | ||
55 | static int af9013_write_regs(struct af9013_state *state, u8 mbox, u16 reg, | |
56 | u8 *val, u8 len) | |
57 | { | |
58 | u8 buf[3+len]; | |
59 | struct i2c_msg msg = { | |
60 | .addr = state->config.demod_address, | |
61 | .flags = 0, | |
62 | .len = sizeof(buf), | |
63 | .buf = buf }; | |
64 | ||
65 | buf[0] = reg >> 8; | |
66 | buf[1] = reg & 0xff; | |
67 | buf[2] = mbox; | |
68 | memcpy(&buf[3], val, len); | |
69 | ||
70 | if (i2c_transfer(state->i2c, &msg, 1) != 1) { | |
71 | warn("I2C write failed reg:%04x len:%d", reg, len); | |
72 | return -EREMOTEIO; | |
73 | } | |
74 | return 0; | |
75 | } | |
76 | ||
77 | static int af9013_write_ofdm_regs(struct af9013_state *state, u16 reg, u8 *val, | |
78 | u8 len) | |
79 | { | |
80 | u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(0 << 6)|(0 << 7); | |
81 | return af9013_write_regs(state, mbox, reg, val, len); | |
82 | } | |
83 | ||
84 | static int af9013_write_ofsm_regs(struct af9013_state *state, u16 reg, u8 *val, | |
85 | u8 len) | |
86 | { | |
87 | u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(1 << 6)|(1 << 7); | |
88 | return af9013_write_regs(state, mbox, reg, val, len); | |
89 | } | |
90 | ||
91 | /* write single register */ | |
92 | static int af9013_write_reg(struct af9013_state *state, u16 reg, u8 val) | |
93 | { | |
94 | return af9013_write_ofdm_regs(state, reg, &val, 1); | |
95 | } | |
96 | ||
97 | /* read single register */ | |
98 | static int af9013_read_reg(struct af9013_state *state, u16 reg, u8 *val) | |
99 | { | |
100 | u8 obuf[3] = { reg >> 8, reg & 0xff, 0 }; | |
101 | u8 ibuf[1]; | |
102 | struct i2c_msg msg[2] = { | |
103 | { | |
104 | .addr = state->config.demod_address, | |
105 | .flags = 0, | |
106 | .len = sizeof(obuf), | |
107 | .buf = obuf | |
108 | }, { | |
109 | .addr = state->config.demod_address, | |
110 | .flags = I2C_M_RD, | |
111 | .len = sizeof(ibuf), | |
112 | .buf = ibuf | |
113 | } | |
114 | }; | |
115 | ||
116 | if (i2c_transfer(state->i2c, msg, 2) != 2) { | |
117 | warn("I2C read failed reg:%04x", reg); | |
118 | return -EREMOTEIO; | |
119 | } | |
120 | *val = ibuf[0]; | |
121 | return 0; | |
122 | } | |
123 | ||
124 | static int af9013_write_reg_bits(struct af9013_state *state, u16 reg, u8 pos, | |
125 | u8 len, u8 val) | |
126 | { | |
127 | int ret; | |
128 | u8 tmp, mask; | |
129 | ||
130 | ret = af9013_read_reg(state, reg, &tmp); | |
131 | if (ret) | |
132 | return ret; | |
133 | ||
134 | mask = regmask[len - 1] << pos; | |
135 | tmp = (tmp & ~mask) | ((val << pos) & mask); | |
136 | ||
137 | return af9013_write_reg(state, reg, tmp); | |
138 | } | |
139 | ||
140 | static int af9013_read_reg_bits(struct af9013_state *state, u16 reg, u8 pos, | |
141 | u8 len, u8 *val) | |
142 | { | |
143 | int ret; | |
144 | u8 tmp; | |
145 | ||
146 | ret = af9013_read_reg(state, reg, &tmp); | |
147 | if (ret) | |
148 | return ret; | |
149 | *val = (tmp >> pos) & regmask[len - 1]; | |
150 | return 0; | |
151 | } | |
152 | ||
153 | static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval) | |
154 | { | |
155 | int ret; | |
156 | u8 pos; | |
157 | u16 addr; | |
158 | deb_info("%s: gpio:%d gpioval:%02x\n", __func__, gpio, gpioval); | |
159 | ||
160 | /* GPIO0 & GPIO1 0xd735 | |
161 | GPIO2 & GPIO3 0xd736 */ | |
162 | ||
163 | switch (gpio) { | |
164 | case 0: | |
165 | case 1: | |
166 | addr = 0xd735; | |
167 | break; | |
168 | case 2: | |
169 | case 3: | |
170 | addr = 0xd736; | |
171 | break; | |
172 | ||
173 | default: | |
174 | err("invalid gpio:%d\n", gpio); | |
175 | ret = -EINVAL; | |
176 | goto error; | |
177 | }; | |
178 | ||
179 | switch (gpio) { | |
180 | case 0: | |
181 | case 2: | |
182 | pos = 0; | |
183 | break; | |
184 | case 1: | |
185 | case 3: | |
186 | default: | |
187 | pos = 4; | |
188 | break; | |
189 | }; | |
190 | ||
191 | ret = af9013_write_reg_bits(state, addr, pos, 4, gpioval); | |
192 | ||
193 | error: | |
194 | return ret; | |
195 | } | |
196 | ||
197 | static u32 af913_div(u32 a, u32 b, u32 x) | |
198 | { | |
199 | u32 r = 0, c = 0, i; | |
200 | deb_info("%s: a:%d b:%d x:%d\n", __func__, a, b, x); | |
201 | ||
202 | if (a > b) { | |
203 | c = a / b; | |
204 | a = a - c * b; | |
205 | } | |
206 | ||
207 | for (i = 0; i < x; i++) { | |
208 | if (a >= b) { | |
209 | r += 1; | |
210 | a -= b; | |
211 | } | |
212 | a <<= 1; | |
213 | r <<= 1; | |
214 | } | |
215 | r = (c << (u32)x) + r; | |
216 | ||
217 | deb_info("%s: a:%d b:%d x:%d r:%d r:%x\n", __func__, a, b, x, r, r); | |
218 | return r; | |
219 | } | |
220 | ||
221 | static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw) | |
222 | { | |
223 | int ret = 0; | |
224 | u8 i = 0; | |
225 | u8 buf[24]; | |
226 | u32 ns_coeff1_2048nu; | |
227 | u32 ns_coeff1_8191nu; | |
228 | u32 ns_coeff1_8192nu; | |
229 | u32 ns_coeff1_8193nu; | |
230 | u32 ns_coeff2_2k; | |
231 | u32 ns_coeff2_8k; | |
232 | ||
233 | deb_info("%s: adc_clock:%d bw:%d\n", __func__, | |
234 | state->config.adc_clock, bw); | |
235 | ||
236 | switch (state->config.adc_clock) { | |
237 | case 28800: /* 28.800 MHz */ | |
238 | switch (bw) { | |
239 | case BANDWIDTH_6_MHZ: | |
240 | ns_coeff1_2048nu = 0x01e79e7a; | |
241 | ns_coeff1_8191nu = 0x0079eb6e; | |
242 | ns_coeff1_8192nu = 0x0079e79e; | |
243 | ns_coeff1_8193nu = 0x0079e3cf; | |
244 | ns_coeff2_2k = 0x00f3cf3d; | |
245 | ns_coeff2_8k = 0x003cf3cf; | |
246 | break; | |
247 | case BANDWIDTH_7_MHZ: | |
248 | ns_coeff1_2048nu = 0x0238e38e; | |
249 | ns_coeff1_8191nu = 0x008e3d55; | |
250 | ns_coeff1_8192nu = 0x008e38e4; | |
251 | ns_coeff1_8193nu = 0x008e3472; | |
252 | ns_coeff2_2k = 0x011c71c7; | |
253 | ns_coeff2_8k = 0x00471c72; | |
254 | break; | |
255 | case BANDWIDTH_8_MHZ: | |
256 | ns_coeff1_2048nu = 0x028a28a3; | |
257 | ns_coeff1_8191nu = 0x00a28f3d; | |
258 | ns_coeff1_8192nu = 0x00a28a29; | |
259 | ns_coeff1_8193nu = 0x00a28514; | |
260 | ns_coeff2_2k = 0x01451451; | |
261 | ns_coeff2_8k = 0x00514514; | |
262 | break; | |
263 | default: | |
264 | ret = -EINVAL; | |
265 | } | |
266 | break; | |
267 | case 20480: /* 20.480 MHz */ | |
268 | switch (bw) { | |
269 | case BANDWIDTH_6_MHZ: | |
270 | ns_coeff1_2048nu = 0x02adb6dc; | |
271 | ns_coeff1_8191nu = 0x00ab7313; | |
272 | ns_coeff1_8192nu = 0x00ab6db7; | |
273 | ns_coeff1_8193nu = 0x00ab685c; | |
274 | ns_coeff2_2k = 0x0156db6e; | |
275 | ns_coeff2_8k = 0x0055b6dc; | |
276 | break; | |
277 | case BANDWIDTH_7_MHZ: | |
278 | ns_coeff1_2048nu = 0x03200001; | |
279 | ns_coeff1_8191nu = 0x00c80640; | |
280 | ns_coeff1_8192nu = 0x00c80000; | |
281 | ns_coeff1_8193nu = 0x00c7f9c0; | |
282 | ns_coeff2_2k = 0x01900000; | |
283 | ns_coeff2_8k = 0x00640000; | |
284 | break; | |
285 | case BANDWIDTH_8_MHZ: | |
286 | ns_coeff1_2048nu = 0x03924926; | |
287 | ns_coeff1_8191nu = 0x00e4996e; | |
288 | ns_coeff1_8192nu = 0x00e49249; | |
289 | ns_coeff1_8193nu = 0x00e48b25; | |
290 | ns_coeff2_2k = 0x01c92493; | |
291 | ns_coeff2_8k = 0x00724925; | |
292 | break; | |
293 | default: | |
294 | ret = -EINVAL; | |
295 | } | |
296 | break; | |
297 | case 28000: /* 28.000 MHz */ | |
298 | switch (bw) { | |
299 | case BANDWIDTH_6_MHZ: | |
300 | ns_coeff1_2048nu = 0x01f58d10; | |
301 | ns_coeff1_8191nu = 0x007d672f; | |
302 | ns_coeff1_8192nu = 0x007d6344; | |
303 | ns_coeff1_8193nu = 0x007d5f59; | |
304 | ns_coeff2_2k = 0x00fac688; | |
305 | ns_coeff2_8k = 0x003eb1a2; | |
306 | break; | |
307 | case BANDWIDTH_7_MHZ: | |
308 | ns_coeff1_2048nu = 0x02492492; | |
309 | ns_coeff1_8191nu = 0x00924db7; | |
310 | ns_coeff1_8192nu = 0x00924925; | |
311 | ns_coeff1_8193nu = 0x00924492; | |
312 | ns_coeff2_2k = 0x01249249; | |
313 | ns_coeff2_8k = 0x00492492; | |
314 | break; | |
315 | case BANDWIDTH_8_MHZ: | |
316 | ns_coeff1_2048nu = 0x029cbc15; | |
317 | ns_coeff1_8191nu = 0x00a7343f; | |
318 | ns_coeff1_8192nu = 0x00a72f05; | |
319 | ns_coeff1_8193nu = 0x00a729cc; | |
320 | ns_coeff2_2k = 0x014e5e0a; | |
321 | ns_coeff2_8k = 0x00539783; | |
322 | break; | |
323 | default: | |
324 | ret = -EINVAL; | |
325 | } | |
326 | break; | |
327 | case 25000: /* 25.000 MHz */ | |
328 | switch (bw) { | |
329 | case BANDWIDTH_6_MHZ: | |
330 | ns_coeff1_2048nu = 0x0231bcb5; | |
331 | ns_coeff1_8191nu = 0x008c7391; | |
332 | ns_coeff1_8192nu = 0x008c6f2d; | |
333 | ns_coeff1_8193nu = 0x008c6aca; | |
334 | ns_coeff2_2k = 0x0118de5b; | |
335 | ns_coeff2_8k = 0x00463797; | |
336 | break; | |
337 | case BANDWIDTH_7_MHZ: | |
338 | ns_coeff1_2048nu = 0x028f5c29; | |
339 | ns_coeff1_8191nu = 0x00a3dc29; | |
340 | ns_coeff1_8192nu = 0x00a3d70a; | |
341 | ns_coeff1_8193nu = 0x00a3d1ec; | |
342 | ns_coeff2_2k = 0x0147ae14; | |
343 | ns_coeff2_8k = 0x0051eb85; | |
344 | break; | |
345 | case BANDWIDTH_8_MHZ: | |
346 | ns_coeff1_2048nu = 0x02ecfb9d; | |
347 | ns_coeff1_8191nu = 0x00bb44c1; | |
348 | ns_coeff1_8192nu = 0x00bb3ee7; | |
349 | ns_coeff1_8193nu = 0x00bb390d; | |
350 | ns_coeff2_2k = 0x01767dce; | |
351 | ns_coeff2_8k = 0x005d9f74; | |
352 | break; | |
353 | default: | |
354 | ret = -EINVAL; | |
355 | } | |
356 | break; | |
357 | default: | |
358 | err("invalid xtal"); | |
359 | return -EINVAL; | |
360 | } | |
361 | if (ret) { | |
362 | err("invalid bandwidth"); | |
363 | return ret; | |
364 | } | |
365 | ||
366 | buf[i++] = (u8) ((ns_coeff1_2048nu & 0x03000000) >> 24); | |
367 | buf[i++] = (u8) ((ns_coeff1_2048nu & 0x00ff0000) >> 16); | |
368 | buf[i++] = (u8) ((ns_coeff1_2048nu & 0x0000ff00) >> 8); | |
369 | buf[i++] = (u8) ((ns_coeff1_2048nu & 0x000000ff)); | |
370 | buf[i++] = (u8) ((ns_coeff2_2k & 0x01c00000) >> 22); | |
371 | buf[i++] = (u8) ((ns_coeff2_2k & 0x003fc000) >> 14); | |
372 | buf[i++] = (u8) ((ns_coeff2_2k & 0x00003fc0) >> 6); | |
373 | buf[i++] = (u8) ((ns_coeff2_2k & 0x0000003f)); | |
374 | buf[i++] = (u8) ((ns_coeff1_8191nu & 0x03000000) >> 24); | |
375 | buf[i++] = (u8) ((ns_coeff1_8191nu & 0x00ffc000) >> 16); | |
376 | buf[i++] = (u8) ((ns_coeff1_8191nu & 0x0000ff00) >> 8); | |
377 | buf[i++] = (u8) ((ns_coeff1_8191nu & 0x000000ff)); | |
378 | buf[i++] = (u8) ((ns_coeff1_8192nu & 0x03000000) >> 24); | |
379 | buf[i++] = (u8) ((ns_coeff1_8192nu & 0x00ffc000) >> 16); | |
380 | buf[i++] = (u8) ((ns_coeff1_8192nu & 0x0000ff00) >> 8); | |
381 | buf[i++] = (u8) ((ns_coeff1_8192nu & 0x000000ff)); | |
382 | buf[i++] = (u8) ((ns_coeff1_8193nu & 0x03000000) >> 24); | |
383 | buf[i++] = (u8) ((ns_coeff1_8193nu & 0x00ffc000) >> 16); | |
384 | buf[i++] = (u8) ((ns_coeff1_8193nu & 0x0000ff00) >> 8); | |
385 | buf[i++] = (u8) ((ns_coeff1_8193nu & 0x000000ff)); | |
386 | buf[i++] = (u8) ((ns_coeff2_8k & 0x01c00000) >> 22); | |
387 | buf[i++] = (u8) ((ns_coeff2_8k & 0x003fc000) >> 14); | |
388 | buf[i++] = (u8) ((ns_coeff2_8k & 0x00003fc0) >> 6); | |
389 | buf[i++] = (u8) ((ns_coeff2_8k & 0x0000003f)); | |
390 | ||
391 | deb_info("%s: coeff:", __func__); | |
392 | debug_dump(buf, sizeof(buf), deb_info); | |
393 | ||
394 | /* program */ | |
395 | for (i = 0; i < sizeof(buf); i++) { | |
396 | ret = af9013_write_reg(state, 0xae00 + i, buf[i]); | |
397 | if (ret) | |
398 | break; | |
399 | } | |
400 | ||
401 | return ret; | |
402 | } | |
403 | ||
404 | static int af9013_set_adc_ctrl(struct af9013_state *state) | |
405 | { | |
406 | int ret; | |
407 | u8 buf[3], tmp, i; | |
408 | u32 adc_cw; | |
409 | ||
410 | deb_info("%s: adc_clock:%d\n", __func__, state->config.adc_clock); | |
411 | ||
412 | /* adc frequency type */ | |
413 | switch (state->config.adc_clock) { | |
414 | case 28800: /* 28.800 MHz */ | |
415 | tmp = 0; | |
416 | break; | |
417 | case 20480: /* 20.480 MHz */ | |
418 | tmp = 1; | |
419 | break; | |
420 | case 28000: /* 28.000 MHz */ | |
421 | tmp = 2; | |
422 | break; | |
423 | case 25000: /* 25.000 MHz */ | |
424 | tmp = 3; | |
425 | break; | |
426 | default: | |
427 | err("invalid xtal"); | |
428 | return -EINVAL; | |
429 | } | |
430 | ||
431 | adc_cw = af913_div(state->config.adc_clock*1000, 1000000ul, 19ul); | |
432 | ||
433 | buf[0] = (u8) ((adc_cw & 0x000000ff)); | |
434 | buf[1] = (u8) ((adc_cw & 0x0000ff00) >> 8); | |
435 | buf[2] = (u8) ((adc_cw & 0x00ff0000) >> 16); | |
436 | ||
437 | deb_info("%s: adc_cw:", __func__); | |
438 | debug_dump(buf, sizeof(buf), deb_info); | |
439 | ||
440 | /* program */ | |
441 | for (i = 0; i < sizeof(buf); i++) { | |
442 | ret = af9013_write_reg(state, 0xd180 + i, buf[i]); | |
443 | if (ret) | |
444 | goto error; | |
445 | } | |
446 | ret = af9013_write_reg_bits(state, 0x9bd2, 0, 4, tmp); | |
447 | error: | |
448 | return ret; | |
449 | } | |
450 | ||
451 | static int af9013_set_freq_ctrl(struct af9013_state *state, fe_bandwidth_t bw) | |
452 | { | |
453 | int ret; | |
454 | u16 addr; | |
455 | u8 buf[3], i, j; | |
456 | u32 adc_freq, freq_cw; | |
457 | s8 bfs_spec_inv; | |
458 | int if_sample_freq; | |
459 | ||
460 | for (j = 0; j < 3; j++) { | |
461 | if (j == 0) { | |
462 | addr = 0xd140; /* fcw normal */ | |
463 | bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1; | |
464 | } else if (j == 1) { | |
465 | addr = 0x9be7; /* fcw dummy ram */ | |
466 | bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1; | |
467 | } else { | |
468 | addr = 0x9bea; /* fcw inverted */ | |
469 | bfs_spec_inv = state->config.rf_spec_inv ? 1 : -1; | |
470 | } | |
471 | ||
472 | adc_freq = state->config.adc_clock * 1000; | |
473 | if_sample_freq = state->config.tuner_if * 1000; | |
474 | ||
475 | /* TDA18271 uses different sampling freq for every bw */ | |
476 | if (state->config.tuner == AF9013_TUNER_TDA18271) { | |
477 | switch (bw) { | |
478 | case BANDWIDTH_6_MHZ: | |
479 | if_sample_freq = 3300000; /* 3.3 MHz */ | |
480 | break; | |
481 | case BANDWIDTH_7_MHZ: | |
482 | if_sample_freq = 3800000; /* 3.8 MHz */ | |
483 | break; | |
484 | case BANDWIDTH_8_MHZ: | |
485 | default: | |
486 | if_sample_freq = 4300000; /* 4.3 MHz */ | |
487 | break; | |
488 | } | |
489 | } | |
490 | ||
491 | while (if_sample_freq > (adc_freq / 2)) | |
492 | if_sample_freq = if_sample_freq - adc_freq; | |
493 | ||
494 | if (if_sample_freq >= 0) | |
495 | bfs_spec_inv = bfs_spec_inv * (-1); | |
496 | else | |
497 | if_sample_freq = if_sample_freq * (-1); | |
498 | ||
499 | freq_cw = af913_div(if_sample_freq, adc_freq, 23ul); | |
500 | ||
501 | if (bfs_spec_inv == -1) | |
502 | freq_cw = 0x00800000 - freq_cw; | |
503 | ||
504 | buf[0] = (u8) ((freq_cw & 0x000000ff)); | |
505 | buf[1] = (u8) ((freq_cw & 0x0000ff00) >> 8); | |
506 | buf[2] = (u8) ((freq_cw & 0x007f0000) >> 16); | |
507 | ||
508 | ||
509 | deb_info("%s: freq_cw:", __func__); | |
510 | debug_dump(buf, sizeof(buf), deb_info); | |
511 | ||
512 | /* program */ | |
513 | for (i = 0; i < sizeof(buf); i++) { | |
514 | ret = af9013_write_reg(state, addr++, buf[i]); | |
515 | if (ret) | |
516 | goto error; | |
517 | } | |
518 | } | |
519 | error: | |
520 | return ret; | |
521 | } | |
522 | ||
523 | static int af9013_set_ofdm_params(struct af9013_state *state, | |
524 | struct dvb_ofdm_parameters *params, u8 *auto_mode) | |
525 | { | |
526 | int ret; | |
527 | u8 i, buf[3] = {0, 0, 0}; | |
528 | *auto_mode = 0; /* set if parameters are requested to auto set */ | |
529 | ||
530 | switch (params->transmission_mode) { | |
531 | case TRANSMISSION_MODE_AUTO: | |
532 | *auto_mode = 1; | |
533 | case TRANSMISSION_MODE_2K: | |
534 | break; | |
535 | case TRANSMISSION_MODE_8K: | |
536 | buf[0] |= (1 << 0); | |
537 | break; | |
538 | default: | |
539 | return -EINVAL; | |
540 | } | |
541 | ||
542 | switch (params->guard_interval) { | |
543 | case GUARD_INTERVAL_AUTO: | |
544 | *auto_mode = 1; | |
545 | case GUARD_INTERVAL_1_32: | |
546 | break; | |
547 | case GUARD_INTERVAL_1_16: | |
548 | buf[0] |= (1 << 2); | |
549 | break; | |
550 | case GUARD_INTERVAL_1_8: | |
551 | buf[0] |= (2 << 2); | |
552 | break; | |
553 | case GUARD_INTERVAL_1_4: | |
554 | buf[0] |= (3 << 2); | |
555 | break; | |
556 | default: | |
557 | return -EINVAL; | |
558 | } | |
559 | ||
560 | switch (params->hierarchy_information) { | |
561 | case HIERARCHY_AUTO: | |
562 | *auto_mode = 1; | |
563 | case HIERARCHY_NONE: | |
564 | break; | |
565 | case HIERARCHY_1: | |
566 | buf[0] |= (1 << 4); | |
567 | break; | |
568 | case HIERARCHY_2: | |
569 | buf[0] |= (2 << 4); | |
570 | break; | |
571 | case HIERARCHY_4: | |
572 | buf[0] |= (3 << 4); | |
573 | break; | |
574 | default: | |
575 | return -EINVAL; | |
576 | }; | |
577 | ||
578 | switch (params->constellation) { | |
579 | case QAM_AUTO: | |
580 | *auto_mode = 1; | |
581 | case QPSK: | |
582 | break; | |
583 | case QAM_16: | |
584 | buf[1] |= (1 << 6); | |
585 | break; | |
586 | case QAM_64: | |
587 | buf[1] |= (2 << 6); | |
588 | break; | |
589 | default: | |
590 | return -EINVAL; | |
591 | } | |
592 | ||
593 | /* Use HP. How and which case we can switch to LP? */ | |
594 | buf[1] |= (1 << 4); | |
595 | ||
596 | switch (params->code_rate_HP) { | |
597 | case FEC_AUTO: | |
598 | *auto_mode = 1; | |
599 | case FEC_1_2: | |
600 | break; | |
601 | case FEC_2_3: | |
602 | buf[2] |= (1 << 0); | |
603 | break; | |
604 | case FEC_3_4: | |
605 | buf[2] |= (2 << 0); | |
606 | break; | |
607 | case FEC_5_6: | |
608 | buf[2] |= (3 << 0); | |
609 | break; | |
610 | case FEC_7_8: | |
611 | buf[2] |= (4 << 0); | |
612 | break; | |
613 | default: | |
614 | return -EINVAL; | |
615 | } | |
616 | ||
617 | switch (params->code_rate_LP) { | |
618 | case FEC_AUTO: | |
619 | /* if HIERARCHY_NONE and FEC_NONE then LP FEC is set to FEC_AUTO | |
620 | by dvb_frontend.c for compatibility */ | |
621 | if (params->hierarchy_information != HIERARCHY_NONE) | |
622 | *auto_mode = 1; | |
623 | case FEC_1_2: | |
624 | break; | |
625 | case FEC_2_3: | |
626 | buf[2] |= (1 << 3); | |
627 | break; | |
628 | case FEC_3_4: | |
629 | buf[2] |= (2 << 3); | |
630 | break; | |
631 | case FEC_5_6: | |
632 | buf[2] |= (3 << 3); | |
633 | break; | |
634 | case FEC_7_8: | |
635 | buf[2] |= (4 << 3); | |
636 | break; | |
637 | case FEC_NONE: | |
638 | if (params->hierarchy_information == HIERARCHY_AUTO) | |
639 | break; | |
640 | default: | |
641 | return -EINVAL; | |
642 | } | |
643 | ||
644 | switch (params->bandwidth) { | |
645 | case BANDWIDTH_6_MHZ: | |
646 | break; | |
647 | case BANDWIDTH_7_MHZ: | |
648 | buf[1] |= (1 << 2); | |
649 | break; | |
650 | case BANDWIDTH_8_MHZ: | |
651 | buf[1] |= (2 << 2); | |
652 | break; | |
653 | default: | |
654 | return -EINVAL; | |
655 | } | |
656 | ||
657 | /* program */ | |
658 | for (i = 0; i < sizeof(buf); i++) { | |
659 | ret = af9013_write_reg(state, 0xd3c0 + i, buf[i]); | |
660 | if (ret) | |
661 | break; | |
662 | } | |
663 | ||
664 | return ret; | |
665 | } | |
666 | ||
667 | static int af9013_reset(struct af9013_state *state, u8 sleep) | |
668 | { | |
669 | int ret; | |
670 | u8 tmp, i; | |
671 | deb_info("%s\n", __func__); | |
672 | ||
673 | /* enable OFDM reset */ | |
674 | ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 1); | |
675 | if (ret) | |
676 | goto error; | |
677 | ||
678 | /* start reset mechanism */ | |
679 | ret = af9013_write_reg(state, 0xaeff, 1); | |
680 | if (ret) | |
681 | goto error; | |
682 | ||
683 | /* reset is done when bit 1 is set */ | |
684 | for (i = 0; i < 150; i++) { | |
685 | ret = af9013_read_reg_bits(state, 0xd417, 1, 1, &tmp); | |
686 | if (ret) | |
687 | goto error; | |
688 | if (tmp) | |
689 | break; /* reset done */ | |
690 | msleep(10); | |
691 | } | |
692 | if (!tmp) | |
693 | return -ETIMEDOUT; | |
694 | ||
695 | /* don't clear reset when going to sleep */ | |
696 | if (!sleep) { | |
697 | /* clear OFDM reset */ | |
698 | ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0); | |
699 | if (ret) | |
700 | goto error; | |
701 | ||
702 | /* disable OFDM reset */ | |
703 | ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0); | |
704 | } | |
705 | error: | |
706 | return ret; | |
707 | } | |
708 | ||
709 | static int af9013_power_ctrl(struct af9013_state *state, u8 onoff) | |
710 | { | |
711 | int ret; | |
712 | deb_info("%s: onoff:%d\n", __func__, onoff); | |
713 | ||
714 | if (onoff) { | |
715 | /* power on */ | |
716 | ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 0); | |
717 | if (ret) | |
718 | goto error; | |
719 | ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0); | |
720 | if (ret) | |
721 | goto error; | |
722 | ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0); | |
723 | } else { | |
724 | /* power off */ | |
725 | ret = af9013_reset(state, 1); | |
726 | if (ret) | |
727 | goto error; | |
728 | ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 1); | |
729 | } | |
730 | error: | |
731 | return ret; | |
732 | } | |
733 | ||
734 | static int af9013_lock_led(struct af9013_state *state, u8 onoff) | |
735 | { | |
736 | deb_info("%s: onoff:%d\n", __func__, onoff); | |
737 | ||
738 | return af9013_write_reg_bits(state, 0xd730, 0, 1, onoff); | |
739 | } | |
740 | ||
741 | static int af9013_set_frontend(struct dvb_frontend *fe, | |
742 | struct dvb_frontend_parameters *params) | |
743 | { | |
744 | struct af9013_state *state = fe->demodulator_priv; | |
745 | int ret; | |
746 | u8 auto_mode; /* auto set TPS */ | |
747 | ||
748 | deb_info("%s: freq:%d bw:%d\n", __func__, params->frequency, | |
749 | params->u.ofdm.bandwidth); | |
750 | ||
751 | state->frequency = params->frequency; | |
752 | ||
753 | /* program CFOE coefficients */ | |
754 | ret = af9013_set_coeff(state, params->u.ofdm.bandwidth); | |
755 | if (ret) | |
756 | goto error; | |
757 | ||
758 | /* program frequency control */ | |
759 | ret = af9013_set_freq_ctrl(state, params->u.ofdm.bandwidth); | |
760 | if (ret) | |
761 | goto error; | |
762 | ||
763 | /* clear TPS lock flag (inverted flag) */ | |
764 | ret = af9013_write_reg_bits(state, 0xd330, 3, 1, 1); | |
765 | if (ret) | |
766 | goto error; | |
767 | ||
768 | /* clear MPEG2 lock flag */ | |
769 | ret = af9013_write_reg_bits(state, 0xd507, 6, 1, 0); | |
770 | if (ret) | |
771 | goto error; | |
772 | ||
773 | /* empty channel function */ | |
774 | ret = af9013_write_reg_bits(state, 0x9bfe, 0, 1, 0); | |
775 | if (ret) | |
776 | goto error; | |
777 | ||
778 | /* empty DVB-T channel function */ | |
779 | ret = af9013_write_reg_bits(state, 0x9bc2, 0, 1, 0); | |
780 | if (ret) | |
781 | goto error; | |
782 | ||
783 | /* program tuner */ | |
784 | if (fe->ops.tuner_ops.set_params) | |
785 | fe->ops.tuner_ops.set_params(fe, params); | |
786 | ||
787 | /* program TPS and bandwidth, check if auto mode needed */ | |
788 | ret = af9013_set_ofdm_params(state, ¶ms->u.ofdm, &auto_mode); | |
789 | if (ret) | |
790 | goto error; | |
791 | ||
792 | if (auto_mode) { | |
793 | /* clear easy mode flag */ | |
794 | ret = af9013_write_reg(state, 0xaefd, 0); | |
795 | deb_info("%s: auto TPS\n", __func__); | |
796 | } else { | |
797 | /* set easy mode flag */ | |
798 | ret = af9013_write_reg(state, 0xaefd, 1); | |
799 | if (ret) | |
800 | goto error; | |
801 | ret = af9013_write_reg(state, 0xaefe, 0); | |
802 | deb_info("%s: manual TPS\n", __func__); | |
803 | } | |
804 | if (ret) | |
805 | goto error; | |
806 | ||
807 | /* everything is set, lets try to receive channel - OFSM GO! */ | |
808 | ret = af9013_write_reg(state, 0xffff, 0); | |
809 | if (ret) | |
810 | goto error; | |
811 | ||
812 | error: | |
813 | return ret; | |
814 | } | |
815 | ||
816 | static int af9013_get_frontend(struct dvb_frontend *fe, | |
817 | struct dvb_frontend_parameters *p) | |
818 | { | |
819 | struct af9013_state *state = fe->demodulator_priv; | |
820 | int ret; | |
821 | u8 i, buf[3]; | |
822 | deb_info("%s\n", __func__); | |
823 | ||
824 | /* read TPS registers */ | |
825 | for (i = 0; i < 3; i++) { | |
826 | ret = af9013_read_reg(state, 0xd3c0 + i, &buf[i]); | |
827 | if (ret) | |
828 | goto error; | |
829 | } | |
830 | ||
831 | switch ((buf[1] >> 6) & 3) { | |
832 | case 0: | |
833 | p->u.ofdm.constellation = QPSK; | |
834 | break; | |
835 | case 1: | |
836 | p->u.ofdm.constellation = QAM_16; | |
837 | break; | |
838 | case 2: | |
839 | p->u.ofdm.constellation = QAM_64; | |
840 | break; | |
841 | } | |
842 | ||
843 | switch ((buf[0] >> 0) & 3) { | |
844 | case 0: | |
845 | p->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K; | |
846 | break; | |
847 | case 1: | |
848 | p->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K; | |
849 | } | |
850 | ||
851 | switch ((buf[0] >> 2) & 3) { | |
852 | case 0: | |
853 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_32; | |
854 | break; | |
855 | case 1: | |
856 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_16; | |
857 | break; | |
858 | case 2: | |
859 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_8; | |
860 | break; | |
861 | case 3: | |
862 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_4; | |
863 | break; | |
864 | } | |
865 | ||
866 | switch ((buf[0] >> 4) & 7) { | |
867 | case 0: | |
868 | p->u.ofdm.hierarchy_information = HIERARCHY_NONE; | |
869 | break; | |
870 | case 1: | |
871 | p->u.ofdm.hierarchy_information = HIERARCHY_1; | |
872 | break; | |
873 | case 2: | |
874 | p->u.ofdm.hierarchy_information = HIERARCHY_2; | |
875 | break; | |
876 | case 3: | |
877 | p->u.ofdm.hierarchy_information = HIERARCHY_4; | |
878 | break; | |
879 | } | |
880 | ||
881 | switch ((buf[2] >> 0) & 7) { | |
882 | case 0: | |
883 | p->u.ofdm.code_rate_HP = FEC_1_2; | |
884 | break; | |
885 | case 1: | |
886 | p->u.ofdm.code_rate_HP = FEC_2_3; | |
887 | break; | |
888 | case 2: | |
889 | p->u.ofdm.code_rate_HP = FEC_3_4; | |
890 | break; | |
891 | case 3: | |
892 | p->u.ofdm.code_rate_HP = FEC_5_6; | |
893 | break; | |
894 | case 4: | |
895 | p->u.ofdm.code_rate_HP = FEC_7_8; | |
896 | break; | |
897 | } | |
898 | ||
899 | switch ((buf[2] >> 3) & 7) { | |
900 | case 0: | |
901 | p->u.ofdm.code_rate_LP = FEC_1_2; | |
902 | break; | |
903 | case 1: | |
904 | p->u.ofdm.code_rate_LP = FEC_2_3; | |
905 | break; | |
906 | case 2: | |
907 | p->u.ofdm.code_rate_LP = FEC_3_4; | |
908 | break; | |
909 | case 3: | |
910 | p->u.ofdm.code_rate_LP = FEC_5_6; | |
911 | break; | |
912 | case 4: | |
913 | p->u.ofdm.code_rate_LP = FEC_7_8; | |
914 | break; | |
915 | } | |
916 | ||
917 | switch ((buf[1] >> 2) & 3) { | |
918 | case 0: | |
919 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
920 | break; | |
921 | case 1: | |
922 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
923 | break; | |
924 | case 2: | |
925 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; | |
926 | break; | |
927 | } | |
928 | ||
929 | p->inversion = INVERSION_AUTO; | |
930 | p->frequency = state->frequency; | |
931 | ||
932 | error: | |
933 | return ret; | |
934 | } | |
935 | ||
936 | static int af9013_update_ber_unc(struct dvb_frontend *fe) | |
937 | { | |
938 | struct af9013_state *state = fe->demodulator_priv; | |
939 | int ret; | |
940 | u8 buf[3], i; | |
941 | u32 error_bit_count = 0; | |
942 | u32 total_bit_count = 0; | |
943 | u32 abort_packet_count = 0; | |
825b9670 AP |
944 | |
945 | state->ber = 0; | |
946 | ||
947 | /* check if error bit count is ready */ | |
948 | ret = af9013_read_reg_bits(state, 0xd391, 4, 1, &buf[0]); | |
949 | if (ret) | |
950 | goto error; | |
951 | if (!buf[0]) | |
952 | goto exit; | |
953 | ||
954 | /* get RSD packet abort count */ | |
955 | for (i = 0; i < 2; i++) { | |
956 | ret = af9013_read_reg(state, 0xd38a + i, &buf[i]); | |
957 | if (ret) | |
958 | goto error; | |
959 | } | |
960 | abort_packet_count = (buf[1] << 8) + buf[0]; | |
961 | ||
962 | /* get error bit count */ | |
963 | for (i = 0; i < 3; i++) { | |
964 | ret = af9013_read_reg(state, 0xd387 + i, &buf[i]); | |
965 | if (ret) | |
966 | goto error; | |
967 | } | |
968 | error_bit_count = (buf[2] << 16) + (buf[1] << 8) + buf[0]; | |
969 | error_bit_count = error_bit_count - abort_packet_count * 8 * 8; | |
970 | ||
971 | /* get used RSD counting period (10000 RSD packets used) */ | |
972 | for (i = 0; i < 2; i++) { | |
973 | ret = af9013_read_reg(state, 0xd385 + i, &buf[i]); | |
974 | if (ret) | |
975 | goto error; | |
976 | } | |
977 | total_bit_count = (buf[1] << 8) + buf[0]; | |
978 | total_bit_count = total_bit_count - abort_packet_count; | |
979 | total_bit_count = total_bit_count * 204 * 8; | |
980 | ||
28f947a9 AP |
981 | if (total_bit_count) |
982 | state->ber = error_bit_count * 1000000000 / total_bit_count; | |
825b9670 AP |
983 | |
984 | state->ucblocks += abort_packet_count; | |
985 | ||
986 | deb_info("%s: err bits:%d total bits:%d abort count:%d\n", __func__, | |
987 | error_bit_count, total_bit_count, abort_packet_count); | |
988 | ||
989 | /* set BER counting range */ | |
990 | ret = af9013_write_reg(state, 0xd385, 10000 & 0xff); | |
991 | if (ret) | |
992 | goto error; | |
993 | ret = af9013_write_reg(state, 0xd386, 10000 >> 8); | |
994 | if (ret) | |
995 | goto error; | |
996 | /* reset and start BER counter */ | |
997 | ret = af9013_write_reg_bits(state, 0xd391, 4, 1, 1); | |
998 | if (ret) | |
999 | goto error; | |
1000 | ||
1001 | exit: | |
1002 | error: | |
1003 | return ret; | |
1004 | } | |
1005 | ||
1006 | static int af9013_update_snr(struct dvb_frontend *fe) | |
1007 | { | |
1008 | struct af9013_state *state = fe->demodulator_priv; | |
1009 | int ret; | |
1010 | u8 buf[3], i, len; | |
1011 | u32 quant = 0; | |
1012 | struct snr_table *snr_table; | |
1013 | ||
1014 | /* check if quantizer ready (for snr) */ | |
1015 | ret = af9013_read_reg_bits(state, 0xd2e1, 3, 1, &buf[0]); | |
1016 | if (ret) | |
1017 | goto error; | |
1018 | if (buf[0]) { | |
1019 | /* quantizer ready - read it */ | |
1020 | for (i = 0; i < 3; i++) { | |
1021 | ret = af9013_read_reg(state, 0xd2e3 + i, &buf[i]); | |
1022 | if (ret) | |
1023 | goto error; | |
1024 | } | |
1025 | quant = (buf[2] << 16) + (buf[1] << 8) + buf[0]; | |
1026 | ||
1027 | /* read current constellation */ | |
1028 | ret = af9013_read_reg(state, 0xd3c1, &buf[0]); | |
1029 | if (ret) | |
1030 | goto error; | |
1031 | ||
1032 | switch ((buf[0] >> 6) & 3) { | |
1033 | case 0: | |
1034 | len = ARRAY_SIZE(qpsk_snr_table); | |
1035 | snr_table = qpsk_snr_table; | |
1036 | break; | |
1037 | case 1: | |
1038 | len = ARRAY_SIZE(qam16_snr_table); | |
1039 | snr_table = qam16_snr_table; | |
1040 | break; | |
1041 | case 2: | |
1042 | len = ARRAY_SIZE(qam64_snr_table); | |
1043 | snr_table = qam64_snr_table; | |
1044 | break; | |
1045 | default: | |
1046 | len = 0; | |
1047 | break; | |
1048 | } | |
1049 | ||
1050 | if (len) { | |
1051 | for (i = 0; i < len; i++) { | |
1052 | if (quant < snr_table[i].val) { | |
1053 | state->snr = snr_table[i].snr * 10; | |
1054 | break; | |
1055 | } | |
1056 | } | |
1057 | } | |
1058 | ||
1059 | /* set quantizer super frame count */ | |
1060 | ret = af9013_write_reg(state, 0xd2e2, 1); | |
1061 | if (ret) | |
1062 | goto error; | |
1063 | ||
1064 | /* check quantizer availability */ | |
1065 | for (i = 0; i < 10; i++) { | |
1066 | msleep(10); | |
1067 | ret = af9013_read_reg_bits(state, 0xd2e6, 0, 1, | |
1068 | &buf[0]); | |
1069 | if (ret) | |
1070 | goto error; | |
1071 | if (!buf[0]) | |
1072 | break; | |
1073 | } | |
1074 | ||
1075 | /* reset quantizer */ | |
1076 | ret = af9013_write_reg_bits(state, 0xd2e1, 3, 1, 1); | |
1077 | if (ret) | |
1078 | goto error; | |
1079 | } | |
1080 | ||
1081 | error: | |
1082 | return ret; | |
1083 | } | |
1084 | ||
1085 | static int af9013_update_signal_strength(struct dvb_frontend *fe) | |
1086 | { | |
1087 | struct af9013_state *state = fe->demodulator_priv; | |
1088 | int ret; | |
1089 | u8 tmp0; | |
1090 | u8 rf_gain, rf_50, rf_80, if_gain, if_50, if_80; | |
1091 | int signal_strength; | |
1092 | ||
1093 | deb_info("%s\n", __func__); | |
1094 | ||
1095 | state->signal_strength = 0; | |
1096 | ||
1097 | ret = af9013_read_reg_bits(state, 0x9bee, 0, 1, &tmp0); | |
1098 | if (ret) | |
1099 | goto error; | |
1100 | if (tmp0) { | |
1101 | ret = af9013_read_reg(state, 0x9bbd, &rf_50); | |
1102 | if (ret) | |
1103 | goto error; | |
1104 | ret = af9013_read_reg(state, 0x9bd0, &rf_80); | |
1105 | if (ret) | |
1106 | goto error; | |
1107 | ret = af9013_read_reg(state, 0x9be2, &if_50); | |
1108 | if (ret) | |
1109 | goto error; | |
1110 | ret = af9013_read_reg(state, 0x9be4, &if_80); | |
1111 | if (ret) | |
1112 | goto error; | |
1113 | ret = af9013_read_reg(state, 0xd07c, &rf_gain); | |
1114 | if (ret) | |
1115 | goto error; | |
1116 | ret = af9013_read_reg(state, 0xd07d, &if_gain); | |
1117 | if (ret) | |
1118 | goto error; | |
1119 | signal_strength = (0xffff / (9 * (rf_50 + if_50) - \ | |
1120 | 11 * (rf_80 + if_80))) * (10 * (rf_gain + if_gain) - \ | |
1121 | 11 * (rf_80 + if_80)); | |
1122 | if (signal_strength < 0) | |
1123 | signal_strength = 0; | |
1124 | else if (signal_strength > 0xffff) | |
1125 | signal_strength = 0xffff; | |
1126 | ||
1127 | state->signal_strength = signal_strength; | |
1128 | } | |
1129 | ||
1130 | error: | |
1131 | return ret; | |
1132 | } | |
1133 | ||
1134 | static int af9013_update_statistics(struct dvb_frontend *fe) | |
1135 | { | |
1136 | struct af9013_state *state = fe->demodulator_priv; | |
1137 | int ret; | |
1138 | ||
1139 | if (time_before(jiffies, state->next_statistics_check)) | |
1140 | return 0; | |
1141 | ||
1142 | /* set minimum statistic update interval */ | |
1143 | state->next_statistics_check = jiffies + msecs_to_jiffies(1200); | |
1144 | ||
1145 | ret = af9013_update_signal_strength(fe); | |
1146 | if (ret) | |
1147 | goto error; | |
1148 | ret = af9013_update_snr(fe); | |
1149 | if (ret) | |
1150 | goto error; | |
1151 | ret = af9013_update_ber_unc(fe); | |
1152 | if (ret) | |
1153 | goto error; | |
1154 | ||
1155 | error: | |
1156 | return ret; | |
1157 | } | |
1158 | ||
1159 | static int af9013_get_tune_settings(struct dvb_frontend *fe, | |
1160 | struct dvb_frontend_tune_settings *fesettings) | |
1161 | { | |
1162 | fesettings->min_delay_ms = 800; | |
1163 | fesettings->step_size = 0; | |
1164 | fesettings->max_drift = 0; | |
1165 | ||
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | static int af9013_read_status(struct dvb_frontend *fe, fe_status_t *status) | |
1170 | { | |
1171 | struct af9013_state *state = fe->demodulator_priv; | |
1172 | int ret = 0; | |
1173 | u8 tmp; | |
1174 | *status = 0; | |
1175 | ||
1176 | /* TPS lock */ | |
1177 | ret = af9013_read_reg_bits(state, 0xd330, 3, 1, &tmp); | |
1178 | if (ret) | |
1179 | goto error; | |
1180 | if (tmp) | |
1181 | *status |= FE_HAS_VITERBI | FE_HAS_CARRIER | FE_HAS_SIGNAL; | |
1182 | ||
1183 | /* MPEG2 lock */ | |
1184 | ret = af9013_read_reg_bits(state, 0xd507, 6, 1, &tmp); | |
1185 | if (ret) | |
1186 | goto error; | |
1187 | if (tmp) | |
1188 | *status |= FE_HAS_SYNC | FE_HAS_LOCK; | |
1189 | ||
891bd133 | 1190 | if (!(*status & FE_HAS_SIGNAL)) { |
825b9670 AP |
1191 | /* AGC lock */ |
1192 | ret = af9013_read_reg_bits(state, 0xd1a0, 6, 1, &tmp); | |
1193 | if (ret) | |
1194 | goto error; | |
1195 | if (tmp) | |
1196 | *status |= FE_HAS_SIGNAL; | |
1197 | } | |
1198 | ||
891bd133 | 1199 | if (!(*status & FE_HAS_CARRIER)) { |
825b9670 AP |
1200 | /* CFO lock */ |
1201 | ret = af9013_read_reg_bits(state, 0xd333, 7, 1, &tmp); | |
1202 | if (ret) | |
1203 | goto error; | |
1204 | if (tmp) | |
1205 | *status |= FE_HAS_CARRIER; | |
1206 | } | |
1207 | ||
891bd133 | 1208 | if (!(*status & FE_HAS_CARRIER)) { |
825b9670 AP |
1209 | /* SFOE lock */ |
1210 | ret = af9013_read_reg_bits(state, 0xd334, 6, 1, &tmp); | |
1211 | if (ret) | |
1212 | goto error; | |
1213 | if (tmp) | |
1214 | *status |= FE_HAS_CARRIER; | |
1215 | } | |
1216 | ||
1217 | ret = af9013_update_statistics(fe); | |
1218 | ||
1219 | error: | |
1220 | return ret; | |
1221 | } | |
1222 | ||
1223 | ||
1224 | static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber) | |
1225 | { | |
1226 | struct af9013_state *state = fe->demodulator_priv; | |
1227 | int ret; | |
1228 | ret = af9013_update_statistics(fe); | |
1229 | *ber = state->ber; | |
1230 | return ret; | |
1231 | } | |
1232 | ||
1233 | static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength) | |
1234 | { | |
1235 | struct af9013_state *state = fe->demodulator_priv; | |
1236 | int ret; | |
1237 | ret = af9013_update_statistics(fe); | |
1238 | *strength = state->signal_strength; | |
1239 | return ret; | |
1240 | } | |
1241 | ||
1242 | static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr) | |
1243 | { | |
1244 | struct af9013_state *state = fe->demodulator_priv; | |
1245 | int ret; | |
1246 | ret = af9013_update_statistics(fe); | |
1247 | *snr = state->snr; | |
1248 | return ret; | |
1249 | } | |
1250 | ||
1251 | static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) | |
1252 | { | |
1253 | struct af9013_state *state = fe->demodulator_priv; | |
1254 | int ret; | |
1255 | ret = af9013_update_statistics(fe); | |
1256 | *ucblocks = state->ucblocks; | |
1257 | return ret; | |
1258 | } | |
1259 | ||
1260 | static int af9013_sleep(struct dvb_frontend *fe) | |
1261 | { | |
1262 | struct af9013_state *state = fe->demodulator_priv; | |
1263 | int ret; | |
1264 | deb_info("%s\n", __func__); | |
1265 | ||
1266 | ret = af9013_lock_led(state, 0); | |
1267 | if (ret) | |
1268 | goto error; | |
1269 | ||
1270 | ret = af9013_power_ctrl(state, 0); | |
1271 | error: | |
1272 | return ret; | |
1273 | } | |
1274 | ||
1275 | static int af9013_init(struct dvb_frontend *fe) | |
1276 | { | |
1277 | struct af9013_state *state = fe->demodulator_priv; | |
1278 | int ret, i, len; | |
1279 | u8 tmp0, tmp1; | |
1280 | struct regdesc *init; | |
1281 | deb_info("%s\n", __func__); | |
1282 | ||
1283 | /* reset OFDM */ | |
1284 | ret = af9013_reset(state, 0); | |
1285 | if (ret) | |
1286 | goto error; | |
1287 | ||
1288 | /* power on */ | |
1289 | ret = af9013_power_ctrl(state, 1); | |
1290 | if (ret) | |
1291 | goto error; | |
1292 | ||
1293 | /* enable ADC */ | |
1294 | ret = af9013_write_reg(state, 0xd73a, 0xa4); | |
1295 | if (ret) | |
1296 | goto error; | |
1297 | ||
1298 | /* write API version to firmware */ | |
1299 | for (i = 0; i < sizeof(state->config.api_version); i++) { | |
1300 | ret = af9013_write_reg(state, 0x9bf2 + i, | |
1301 | state->config.api_version[i]); | |
1302 | if (ret) | |
1303 | goto error; | |
1304 | } | |
1305 | ||
1306 | /* program ADC control */ | |
1307 | ret = af9013_set_adc_ctrl(state); | |
1308 | if (ret) | |
1309 | goto error; | |
1310 | ||
1311 | /* set I2C master clock */ | |
1312 | ret = af9013_write_reg(state, 0xd416, 0x14); | |
1313 | if (ret) | |
1314 | goto error; | |
1315 | ||
1316 | /* set 16 embx */ | |
1317 | ret = af9013_write_reg_bits(state, 0xd700, 1, 1, 1); | |
1318 | if (ret) | |
1319 | goto error; | |
1320 | ||
1321 | /* set no trigger */ | |
1322 | ret = af9013_write_reg_bits(state, 0xd700, 2, 1, 0); | |
1323 | if (ret) | |
1324 | goto error; | |
1325 | ||
1326 | /* set read-update bit for constellation */ | |
1327 | ret = af9013_write_reg_bits(state, 0xd371, 1, 1, 1); | |
1328 | if (ret) | |
1329 | goto error; | |
1330 | ||
1331 | /* enable FEC monitor */ | |
1332 | ret = af9013_write_reg_bits(state, 0xd392, 1, 1, 1); | |
1333 | if (ret) | |
1334 | goto error; | |
1335 | ||
1336 | /* load OFSM settings */ | |
1337 | deb_info("%s: load ofsm settings\n", __func__); | |
1338 | len = ARRAY_SIZE(ofsm_init); | |
1339 | init = ofsm_init; | |
1340 | for (i = 0; i < len; i++) { | |
1341 | ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos, | |
1342 | init[i].len, init[i].val); | |
1343 | if (ret) | |
1344 | goto error; | |
1345 | } | |
1346 | ||
1347 | /* load tuner specific settings */ | |
1348 | deb_info("%s: load tuner specific settings\n", __func__); | |
1349 | switch (state->config.tuner) { | |
1350 | case AF9013_TUNER_MXL5003D: | |
1351 | len = ARRAY_SIZE(tuner_init_mxl5003d); | |
1352 | init = tuner_init_mxl5003d; | |
1353 | break; | |
1354 | case AF9013_TUNER_MXL5005D: | |
1355 | case AF9013_TUNER_MXL5005R: | |
1356 | len = ARRAY_SIZE(tuner_init_mxl5005); | |
1357 | init = tuner_init_mxl5005; | |
1358 | break; | |
1359 | case AF9013_TUNER_ENV77H11D5: | |
1360 | len = ARRAY_SIZE(tuner_init_env77h11d5); | |
1361 | init = tuner_init_env77h11d5; | |
1362 | break; | |
1363 | case AF9013_TUNER_MT2060: | |
1364 | len = ARRAY_SIZE(tuner_init_mt2060); | |
1365 | init = tuner_init_mt2060; | |
1366 | break; | |
1367 | case AF9013_TUNER_MC44S803: | |
1368 | len = ARRAY_SIZE(tuner_init_mc44s803); | |
1369 | init = tuner_init_mc44s803; | |
1370 | break; | |
1371 | case AF9013_TUNER_QT1010: | |
1372 | case AF9013_TUNER_QT1010A: | |
1373 | len = ARRAY_SIZE(tuner_init_qt1010); | |
1374 | init = tuner_init_qt1010; | |
1375 | break; | |
1376 | case AF9013_TUNER_MT2060_2: | |
1377 | len = ARRAY_SIZE(tuner_init_mt2060_2); | |
1378 | init = tuner_init_mt2060_2; | |
1379 | break; | |
1380 | case AF9013_TUNER_TDA18271: | |
1381 | len = ARRAY_SIZE(tuner_init_tda18271); | |
1382 | init = tuner_init_tda18271; | |
1383 | break; | |
1384 | case AF9013_TUNER_UNKNOWN: | |
1385 | default: | |
1386 | len = ARRAY_SIZE(tuner_init_unknown); | |
1387 | init = tuner_init_unknown; | |
1388 | break; | |
1389 | } | |
1390 | ||
1391 | for (i = 0; i < len; i++) { | |
1392 | ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos, | |
1393 | init[i].len, init[i].val); | |
1394 | if (ret) | |
1395 | goto error; | |
1396 | } | |
1397 | ||
1398 | /* set TS mode */ | |
1399 | deb_info("%s: setting ts mode\n", __func__); | |
1400 | tmp0 = 0; /* parallel mode */ | |
1401 | tmp1 = 0; /* serial mode */ | |
1402 | switch (state->config.output_mode) { | |
1403 | case AF9013_OUTPUT_MODE_PARALLEL: | |
1404 | tmp0 = 1; | |
1405 | break; | |
1406 | case AF9013_OUTPUT_MODE_SERIAL: | |
1407 | tmp1 = 1; | |
1408 | break; | |
1409 | case AF9013_OUTPUT_MODE_USB: | |
1410 | /* usb mode for AF9015 */ | |
1411 | default: | |
1412 | break; | |
1413 | } | |
1414 | ret = af9013_write_reg_bits(state, 0xd500, 1, 1, tmp0); /* parallel */ | |
1415 | if (ret) | |
1416 | goto error; | |
1417 | ret = af9013_write_reg_bits(state, 0xd500, 2, 1, tmp1); /* serial */ | |
1418 | if (ret) | |
1419 | goto error; | |
1420 | ||
1421 | /* enable lock led */ | |
1422 | ret = af9013_lock_led(state, 1); | |
1423 | if (ret) | |
1424 | goto error; | |
1425 | ||
1426 | error: | |
1427 | return ret; | |
1428 | } | |
1429 | ||
1430 | static struct dvb_frontend_ops af9013_ops; | |
1431 | ||
1432 | static int af9013_download_firmware(struct af9013_state *state) | |
1433 | { | |
1434 | int i, len, packets, remainder, ret; | |
1435 | const struct firmware *fw; | |
1436 | u16 addr = 0x5100; /* firmware start address */ | |
1437 | u16 checksum = 0; | |
1438 | u8 val; | |
1439 | u8 fw_params[4]; | |
1440 | u8 *data; | |
1441 | u8 *fw_file = AF9013_DEFAULT_FIRMWARE; | |
1442 | ||
1443 | msleep(100); | |
1444 | /* check whether firmware is already running */ | |
1445 | ret = af9013_read_reg(state, 0x98be, &val); | |
1446 | if (ret) | |
1447 | goto error; | |
1448 | else | |
1449 | deb_info("%s: firmware status:%02x\n", __func__, val); | |
1450 | ||
1451 | if (val == 0x0c) /* fw is running, no need for download */ | |
1452 | goto exit; | |
1453 | ||
1454 | info("found a '%s' in cold state, will try to load a firmware", | |
1455 | af9013_ops.info.name); | |
1456 | ||
1457 | /* request the firmware, this will block and timeout */ | |
1458 | ret = request_firmware(&fw, fw_file, &state->i2c->dev); | |
1459 | if (ret) { | |
1460 | err("did not find the firmware file. (%s) " | |
1461 | "Please see linux/Documentation/dvb/ for more details" \ | |
1462 | " on firmware-problems. (%d)", | |
1463 | fw_file, ret); | |
1464 | goto error; | |
1465 | } | |
1466 | ||
1467 | info("downloading firmware from file '%s'", fw_file); | |
1468 | ||
1469 | /* calc checksum */ | |
1470 | for (i = 0; i < fw->size; i++) | |
1471 | checksum += fw->data[i]; | |
1472 | ||
1473 | fw_params[0] = checksum >> 8; | |
1474 | fw_params[1] = checksum & 0xff; | |
1475 | fw_params[2] = fw->size >> 8; | |
1476 | fw_params[3] = fw->size & 0xff; | |
1477 | ||
1478 | /* write fw checksum & size */ | |
1479 | ret = af9013_write_ofsm_regs(state, 0x50fc, | |
1480 | fw_params, sizeof(fw_params)); | |
1481 | if (ret) | |
1482 | goto error_release; | |
1483 | ||
1484 | #define FW_PACKET_MAX_DATA 16 | |
1485 | ||
1486 | packets = fw->size / FW_PACKET_MAX_DATA; | |
1487 | remainder = fw->size % FW_PACKET_MAX_DATA; | |
1488 | len = FW_PACKET_MAX_DATA; | |
1489 | for (i = 0; i <= packets; i++) { | |
1490 | if (i == packets) /* set size of the last packet */ | |
1491 | len = remainder; | |
1492 | ||
541dfa87 | 1493 | data = (u8 *)(fw->data + i * FW_PACKET_MAX_DATA); |
825b9670 AP |
1494 | ret = af9013_write_ofsm_regs(state, addr, data, len); |
1495 | addr += FW_PACKET_MAX_DATA; | |
1496 | ||
1497 | if (ret) { | |
1498 | err("firmware download failed at %d with %d", i, ret); | |
1499 | goto error_release; | |
1500 | } | |
1501 | } | |
1502 | ||
825b9670 AP |
1503 | /* request boot firmware */ |
1504 | ret = af9013_write_reg(state, 0xe205, 1); | |
1505 | if (ret) | |
1506 | goto error_release; | |
1507 | ||
1508 | for (i = 0; i < 15; i++) { | |
1509 | msleep(100); | |
1510 | ||
1511 | /* check firmware status */ | |
1512 | ret = af9013_read_reg(state, 0x98be, &val); | |
1513 | if (ret) | |
1514 | goto error_release; | |
1515 | ||
1516 | deb_info("%s: firmware status:%02x\n", __func__, val); | |
1517 | ||
1518 | if (val == 0x0c || val == 0x04) /* success or fail */ | |
1519 | break; | |
1520 | } | |
1521 | ||
1522 | if (val == 0x04) { | |
1523 | err("firmware did not run"); | |
1524 | ret = -1; | |
1525 | } else if (val != 0x0c) { | |
1526 | err("firmware boot timeout"); | |
1527 | ret = -1; | |
1528 | } | |
1529 | ||
1530 | error_release: | |
1531 | release_firmware(fw); | |
1532 | error: | |
1533 | exit: | |
1534 | if (!ret) | |
1535 | info("found a '%s' in warm state.", af9013_ops.info.name); | |
1536 | return ret; | |
1537 | } | |
1538 | ||
1539 | static int af9013_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) | |
1540 | { | |
1541 | int ret; | |
1542 | struct af9013_state *state = fe->demodulator_priv; | |
1543 | deb_info("%s: enable:%d\n", __func__, enable); | |
1544 | ||
1545 | if (state->config.output_mode == AF9013_OUTPUT_MODE_USB) | |
1546 | ret = af9013_write_reg_bits(state, 0xd417, 3, 1, enable); | |
1547 | else | |
1548 | ret = af9013_write_reg_bits(state, 0xd607, 2, 1, enable); | |
1549 | ||
1550 | return ret; | |
1551 | } | |
1552 | ||
1553 | static void af9013_release(struct dvb_frontend *fe) | |
1554 | { | |
1555 | struct af9013_state *state = fe->demodulator_priv; | |
1556 | kfree(state); | |
1557 | } | |
1558 | ||
1559 | static struct dvb_frontend_ops af9013_ops; | |
1560 | ||
1561 | struct dvb_frontend *af9013_attach(const struct af9013_config *config, | |
1562 | struct i2c_adapter *i2c) | |
1563 | { | |
1564 | int ret; | |
1565 | struct af9013_state *state = NULL; | |
1566 | u8 buf[3], i; | |
1567 | ||
1568 | /* allocate memory for the internal state */ | |
1569 | state = kzalloc(sizeof(struct af9013_state), GFP_KERNEL); | |
1570 | if (state == NULL) | |
1571 | goto error; | |
1572 | ||
1573 | /* setup the state */ | |
1574 | state->i2c = i2c; | |
1575 | memcpy(&state->config, config, sizeof(struct af9013_config)); | |
1576 | ||
1577 | /* chip version */ | |
1578 | ret = af9013_read_reg_bits(state, 0xd733, 4, 4, &buf[2]); | |
1579 | if (ret) | |
1580 | goto error; | |
1581 | ||
1582 | /* ROM version */ | |
1583 | for (i = 0; i < 2; i++) { | |
1584 | ret = af9013_read_reg(state, 0x116b + i, &buf[i]); | |
1585 | if (ret) | |
1586 | goto error; | |
1587 | } | |
1588 | deb_info("%s: chip version:%d ROM version:%d.%d\n", __func__, | |
1589 | buf[2], buf[0], buf[1]); | |
1590 | ||
1591 | /* download firmware */ | |
1592 | if (state->config.output_mode != AF9013_OUTPUT_MODE_USB) { | |
1593 | ret = af9013_download_firmware(state); | |
1594 | if (ret) | |
1595 | goto error; | |
1596 | } | |
1597 | ||
1598 | /* firmware version */ | |
1599 | for (i = 0; i < 3; i++) { | |
1600 | ret = af9013_read_reg(state, 0x5103 + i, &buf[i]); | |
1601 | if (ret) | |
1602 | goto error; | |
1603 | } | |
1604 | info("firmware version:%d.%d.%d", buf[0], buf[1], buf[2]); | |
1605 | ||
1606 | /* settings for mp2if */ | |
1607 | if (state->config.output_mode == AF9013_OUTPUT_MODE_USB) { | |
1608 | /* AF9015 split PSB to 1.5k + 0.5k */ | |
1609 | ret = af9013_write_reg_bits(state, 0xd50b, 2, 1, 1); | |
1610 | } else { | |
1611 | /* AF9013 change the output bit to data7 */ | |
1612 | ret = af9013_write_reg_bits(state, 0xd500, 3, 1, 1); | |
1613 | if (ret) | |
1614 | goto error; | |
1615 | /* AF9013 set mpeg to full speed */ | |
1616 | ret = af9013_write_reg_bits(state, 0xd502, 4, 1, 1); | |
1617 | } | |
1618 | if (ret) | |
1619 | goto error; | |
1620 | ret = af9013_write_reg_bits(state, 0xd520, 4, 1, 1); | |
1621 | if (ret) | |
1622 | goto error; | |
1623 | ||
1624 | /* set GPIOs */ | |
1625 | for (i = 0; i < sizeof(state->config.gpio); i++) { | |
1626 | ret = af9013_set_gpio(state, i, state->config.gpio[i]); | |
1627 | if (ret) | |
1628 | goto error; | |
1629 | } | |
1630 | ||
1631 | /* create dvb_frontend */ | |
1632 | memcpy(&state->frontend.ops, &af9013_ops, | |
1633 | sizeof(struct dvb_frontend_ops)); | |
1634 | state->frontend.demodulator_priv = state; | |
1635 | ||
1636 | return &state->frontend; | |
1637 | error: | |
1638 | kfree(state); | |
1639 | return NULL; | |
1640 | } | |
1641 | EXPORT_SYMBOL(af9013_attach); | |
1642 | ||
1643 | static struct dvb_frontend_ops af9013_ops = { | |
1644 | .info = { | |
1645 | .name = "Afatech AF9013 DVB-T", | |
1646 | .type = FE_OFDM, | |
1647 | .frequency_min = 174000000, | |
1648 | .frequency_max = 862000000, | |
1649 | .frequency_stepsize = 250000, | |
1650 | .frequency_tolerance = 0, | |
1651 | .caps = | |
1652 | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
1653 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | |
1654 | FE_CAN_QPSK | FE_CAN_QAM_16 | | |
1655 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | | |
1656 | FE_CAN_TRANSMISSION_MODE_AUTO | | |
1657 | FE_CAN_GUARD_INTERVAL_AUTO | | |
1658 | FE_CAN_HIERARCHY_AUTO | | |
1659 | FE_CAN_RECOVER | | |
1660 | FE_CAN_MUTE_TS | |
1661 | }, | |
1662 | ||
1663 | .release = af9013_release, | |
1664 | .init = af9013_init, | |
1665 | .sleep = af9013_sleep, | |
1666 | .i2c_gate_ctrl = af9013_i2c_gate_ctrl, | |
1667 | ||
1668 | .set_frontend = af9013_set_frontend, | |
1669 | .get_frontend = af9013_get_frontend, | |
1670 | ||
1671 | .get_tune_settings = af9013_get_tune_settings, | |
1672 | ||
1673 | .read_status = af9013_read_status, | |
1674 | .read_ber = af9013_read_ber, | |
1675 | .read_signal_strength = af9013_read_signal_strength, | |
1676 | .read_snr = af9013_read_snr, | |
1677 | .read_ucblocks = af9013_read_ucblocks, | |
1678 | }; | |
1679 | ||
1680 | module_param_named(debug, af9013_debug, int, 0644); | |
1681 | MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); | |
1682 | ||
1683 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
1684 | MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver"); | |
1685 | MODULE_LICENSE("GPL"); |