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V4L/DVB (6468): tda8290: auto-detect tda8290 or tda8295
[linux-2.6.git] / drivers / media / video / tda8290.c
blobed22be0f59418c0d82b581d1e584a394b99abee4
1 /*
2
3 i2c tv tuner chip device driver
4 controls the philips tda8290+75 tuner chip combo.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19
20 This "tda8290" module was split apart from the original "tuner" module.
21 */
22
23 #include <linux/i2c.h>
24 #include <linux/delay.h>
25 #include <linux/videodev.h>
26 #include "tda8290.h"
27 #include "tda827x.h"
28 #include "tda18271.h"
29
30 static int tuner_debug;
31 module_param_named(debug, tuner_debug, int, 0644);
32 MODULE_PARM_DESC(debug, "enable verbose debug messages");
33
34 #define PREFIX "tda8290 "
35
36 /* ---------------------------------------------------------------------- */
37
38 struct tda8290_priv {
39 struct tuner_i2c_props i2c_props;
40
41 unsigned char tda8290_easy_mode;
42
43 unsigned char tda827x_addr;
44
45 unsigned char ver;
46 #define TDA8290 1
47 #define TDA8295 2
48 #define TDA8275 4
49 #define TDA8275A 8
50 #define TDA18271 16
51
52 struct tda827x_config cfg;
53
54 struct tuner *t;
55 };
56
57 /*---------------------------------------------------------------------*/
58
59 static int tda8290_i2c_bridge(struct dvb_frontend *fe, int close)
60 {
61 struct tda8290_priv *priv = fe->analog_demod_priv;
62
63 unsigned char enable[2] = { 0x21, 0xC0 };
64 unsigned char disable[2] = { 0x21, 0x00 };
65 unsigned char *msg;
66
67 if (close) {
68 msg = enable;
69 tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
70 /* let the bridge stabilize */
71 msleep(20);
72 } else {
73 msg = disable;
74 tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
75 }
76
77 return 0;
78 }
79
80 static int tda8295_i2c_bridge(struct dvb_frontend *fe, int close)
81 {
82 struct tda8290_priv *priv = fe->analog_demod_priv;
83
84 unsigned char enable[2] = { 0x45, 0xc1 };
85 unsigned char disable[2] = { 0x46, 0x00 };
86 unsigned char buf[3] = { 0x45, 0x01, 0x00 };
87 unsigned char *msg;
88
89 if (close) {
90 msg = enable;
91 tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
92 /* let the bridge stabilize */
93 msleep(20);
94 } else {
95 msg = disable;
96 tuner_i2c_xfer_send(&priv->i2c_props, msg, 1);
97 tuner_i2c_xfer_recv(&priv->i2c_props, &msg[1], 1);
98
99 buf[2] = msg[1];
100 buf[2] &= ~0x04;
101 tuner_i2c_xfer_send(&priv->i2c_props, buf, 3);
102 msleep(5);
103
104 msg[1] |= 0x04;
105 tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
106 }
107
108 return 0;
109 }
110
111 /*---------------------------------------------------------------------*/
112
113 static void set_audio(struct dvb_frontend *fe)
114 {
115 struct tda8290_priv *priv = fe->analog_demod_priv;
116 struct tuner *t = priv->t;
117 char* mode;
118
119 if (t->std & V4L2_STD_MN) {
120 priv->tda8290_easy_mode = 0x01;
121 mode = "MN";
122 } else if (t->std & V4L2_STD_B) {
123 priv->tda8290_easy_mode = 0x02;
124 mode = "B";
125 } else if (t->std & V4L2_STD_GH) {
126 priv->tda8290_easy_mode = 0x04;
127 mode = "GH";
128 } else if (t->std & V4L2_STD_PAL_I) {
129 priv->tda8290_easy_mode = 0x08;
130 mode = "I";
131 } else if (t->std & V4L2_STD_DK) {
132 priv->tda8290_easy_mode = 0x10;
133 mode = "DK";
134 } else if (t->std & V4L2_STD_SECAM_L) {
135 priv->tda8290_easy_mode = 0x20;
136 mode = "L";
137 } else if (t->std & V4L2_STD_SECAM_LC) {
138 priv->tda8290_easy_mode = 0x40;
139 mode = "LC";
140 } else {
141 priv->tda8290_easy_mode = 0x10;
142 mode = "xx";
143 }
144
145 tuner_dbg("setting tda829x to system %s\n", mode);
146 }
147
148 static void tda8290_set_freq(struct dvb_frontend *fe, unsigned int freq)
149 {
150 struct tda8290_priv *priv = fe->analog_demod_priv;
151 struct tuner *t = priv->t;
152
153 unsigned char soft_reset[] = { 0x00, 0x00 };
154 unsigned char easy_mode[] = { 0x01, priv->tda8290_easy_mode };
155 unsigned char expert_mode[] = { 0x01, 0x80 };
156 unsigned char agc_out_on[] = { 0x02, 0x00 };
157 unsigned char gainset_off[] = { 0x28, 0x14 };
158 unsigned char if_agc_spd[] = { 0x0f, 0x88 };
159 unsigned char adc_head_6[] = { 0x05, 0x04 };
160 unsigned char adc_head_9[] = { 0x05, 0x02 };
161 unsigned char adc_head_12[] = { 0x05, 0x01 };
162 unsigned char pll_bw_nom[] = { 0x0d, 0x47 };
163 unsigned char pll_bw_low[] = { 0x0d, 0x27 };
164 unsigned char gainset_2[] = { 0x28, 0x64 };
165 unsigned char agc_rst_on[] = { 0x0e, 0x0b };
166 unsigned char agc_rst_off[] = { 0x0e, 0x09 };
167 unsigned char if_agc_set[] = { 0x0f, 0x81 };
168 unsigned char addr_adc_sat = 0x1a;
169 unsigned char addr_agc_stat = 0x1d;
170 unsigned char addr_pll_stat = 0x1b;
171 unsigned char adc_sat, agc_stat,
172 pll_stat;
173 int i;
174
175 struct analog_parameters params = {
176 .frequency = freq,
177 .mode = t->mode,
178 .audmode = t->audmode,
179 .std = t->std
180 };
181
182 set_audio(fe);
183
184 tuner_dbg("tda827xa config is 0x%02x\n", t->config);
185 tuner_i2c_xfer_send(&priv->i2c_props, easy_mode, 2);
186 tuner_i2c_xfer_send(&priv->i2c_props, agc_out_on, 2);
187 tuner_i2c_xfer_send(&priv->i2c_props, soft_reset, 2);
188 msleep(1);
189
190 expert_mode[1] = priv->tda8290_easy_mode + 0x80;
191 tuner_i2c_xfer_send(&priv->i2c_props, expert_mode, 2);
192 tuner_i2c_xfer_send(&priv->i2c_props, gainset_off, 2);
193 tuner_i2c_xfer_send(&priv->i2c_props, if_agc_spd, 2);
194 if (priv->tda8290_easy_mode & 0x60)
195 tuner_i2c_xfer_send(&priv->i2c_props, adc_head_9, 2);
196 else
197 tuner_i2c_xfer_send(&priv->i2c_props, adc_head_6, 2);
198 tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_nom, 2);
199
200 tda8290_i2c_bridge(fe, 1);
201
202 if (fe->ops.tuner_ops.set_analog_params)
203 fe->ops.tuner_ops.set_analog_params(fe, &params);
204
205 for (i = 0; i < 3; i++) {
206 tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
207 tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
208 if (pll_stat & 0x80) {
209 tuner_i2c_xfer_send(&priv->i2c_props, &addr_adc_sat, 1);
210 tuner_i2c_xfer_recv(&priv->i2c_props, &adc_sat, 1);
211 tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
212 tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
213 tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat);
214 break;
215 } else {
216 tuner_dbg("tda8290 not locked, no signal?\n");
217 msleep(100);
218 }
219 }
220 /* adjust headroom resp. gain */
221 if ((agc_stat > 115) || (!(pll_stat & 0x80) && (adc_sat < 20))) {
222 tuner_dbg("adjust gain, step 1. Agc: %d, ADC stat: %d, lock: %d\n",
223 agc_stat, adc_sat, pll_stat & 0x80);
224 tuner_i2c_xfer_send(&priv->i2c_props, gainset_2, 2);
225 msleep(100);
226 tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
227 tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
228 tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
229 tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
230 if ((agc_stat > 115) || !(pll_stat & 0x80)) {
231 tuner_dbg("adjust gain, step 2. Agc: %d, lock: %d\n",
232 agc_stat, pll_stat & 0x80);
233 if (priv->cfg.agcf)
234 priv->cfg.agcf(fe);
235 msleep(100);
236 tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
237 tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
238 tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
239 tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
240 if((agc_stat > 115) || !(pll_stat & 0x80)) {
241 tuner_dbg("adjust gain, step 3. Agc: %d\n", agc_stat);
242 tuner_i2c_xfer_send(&priv->i2c_props, adc_head_12, 2);
243 tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_low, 2);
244 msleep(100);
245 }
246 }
247 }
248
249 /* l/ l' deadlock? */
250 if(priv->tda8290_easy_mode & 0x60) {
251 tuner_i2c_xfer_send(&priv->i2c_props, &addr_adc_sat, 1);
252 tuner_i2c_xfer_recv(&priv->i2c_props, &adc_sat, 1);
253 tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
254 tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
255 if ((adc_sat > 20) || !(pll_stat & 0x80)) {
256 tuner_dbg("trying to resolve SECAM L deadlock\n");
257 tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_on, 2);
258 msleep(40);
259 tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_off, 2);
260 }
261 }
262
263 tda8290_i2c_bridge(fe, 0);
264 tuner_i2c_xfer_send(&priv->i2c_props, if_agc_set, 2);
265 }
266
267 /*---------------------------------------------------------------------*/
268
269 static void tda8295_power(struct dvb_frontend *fe, int enable)
270 {
271 struct tda8290_priv *priv = fe->analog_demod_priv;
272 unsigned char buf[] = { 0x30, 0x00 }; /* clb_stdbt */
273
274 tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
275 tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
276
277 if (enable)
278 buf[1] = 0x01;
279 else
280 buf[1] = 0x03;
281
282 tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
283 }
284
285 static void tda8295_set_easy_mode(struct dvb_frontend *fe, int enable)
286 {
287 struct tda8290_priv *priv = fe->analog_demod_priv;
288 unsigned char buf[] = { 0x01, 0x00 };
289
290 tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
291 tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
292
293 if (enable)
294 buf[1] = 0x01; /* rising edge sets regs 0x02 - 0x23 */
295 else
296 buf[1] = 0x00; /* reset active bit */
297
298 tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
299 }
300
301 static void tda8295_set_video_std(struct dvb_frontend *fe)
302 {
303 struct tda8290_priv *priv = fe->analog_demod_priv;
304 unsigned char buf[] = { 0x00, priv->tda8290_easy_mode };
305
306 tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
307
308 tda8295_set_easy_mode(fe, 1);
309 msleep(20);
310 tda8295_set_easy_mode(fe, 0);
311 }
312
313 /*---------------------------------------------------------------------*/
314
315 static void tda8295_agc1_out(struct dvb_frontend *fe, int enable)
316 {
317 struct tda8290_priv *priv = fe->analog_demod_priv;
318 unsigned char buf[] = { 0x02, 0x00 }; /* DIV_FUNC */
319
320 tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
321 tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
322
323 if (enable)
324 buf[1] &= ~0x40;
325 else
326 buf[1] |= 0x40;
327
328 tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
329 }
330
331 static void tda8295_agc2_out(struct dvb_frontend *fe, int enable)
332 {
333 struct tda8290_priv *priv = fe->analog_demod_priv;
334 unsigned char set_gpio_cf[] = { 0x44, 0x00 };
335 unsigned char set_gpio_val[] = { 0x46, 0x00 };
336
337 tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_cf[0], 1);
338 tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_cf[1], 1);
339 tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_val[0], 1);
340 tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_val[1], 1);
341
342 set_gpio_cf[1] &= 0xf0; /* clear GPIO_0 bits 3-0 */
343
344 if (enable) {
345 set_gpio_cf[1] |= 0x01; /* config GPIO_0 as Open Drain Out */
346 set_gpio_val[1] &= 0xfe; /* set GPIO_0 pin low */
347 }
348 tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_cf, 2);
349 tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_val, 2);
350 }
351
352 static int tda8295_has_signal(struct dvb_frontend *fe)
353 {
354 struct tda8290_priv *priv = fe->analog_demod_priv;
355
356 unsigned char hvpll_stat = 0x26;
357 unsigned char ret;
358
359 tuner_i2c_xfer_send(&priv->i2c_props, &hvpll_stat, 1);
360 tuner_i2c_xfer_recv(&priv->i2c_props, &ret, 1);
361 return (ret & 0x01) ? 65535 : 0;
362 }
363
364 /*---------------------------------------------------------------------*/
365
366 static void tda8295_set_freq(struct dvb_frontend *fe, unsigned int freq)
367 {
368 struct tda8290_priv *priv = fe->analog_demod_priv;
369 struct tuner *t = priv->t;
370
371 unsigned char blanking_mode[] = { 0x1d, 0x00 };
372
373 struct analog_parameters params = {
374 .frequency = freq,
375 .mode = t->mode,
376 .audmode = t->audmode,
377 .std = t->std
378 };
379
380 set_audio(fe);
381
382 tuner_dbg("%s: freq = %d\n", __FUNCTION__, freq);
383
384 tda8295_power(fe, 1);
385 tda8295_agc1_out(fe, 1);
386
387 tuner_i2c_xfer_send(&priv->i2c_props, &blanking_mode[0], 1);
388 tuner_i2c_xfer_recv(&priv->i2c_props, &blanking_mode[1], 1);
389
390 tda8295_set_video_std(fe);
391
392 blanking_mode[1] = 0x03;
393 tuner_i2c_xfer_send(&priv->i2c_props, blanking_mode, 2);
394 msleep(20);
395
396 tda8295_i2c_bridge(fe, 1);
397
398 if (fe->ops.tuner_ops.set_analog_params)
399 fe->ops.tuner_ops.set_analog_params(fe, &params);
400
401 if (priv->cfg.agcf)
402 priv->cfg.agcf(fe);
403
404 if (tda8295_has_signal(fe))
405 tuner_dbg("tda8295 is locked\n");
406 else
407 tuner_dbg("tda8295 not locked, no signal?\n");
408
409 tda8295_i2c_bridge(fe, 0);
410 }
411
412 /*---------------------------------------------------------------------*/
413
414 static int tda8290_has_signal(struct dvb_frontend *fe)
415 {
416 struct tda8290_priv *priv = fe->analog_demod_priv;
417
418 unsigned char i2c_get_afc[1] = { 0x1B };
419 unsigned char afc = 0;
420
421 tuner_i2c_xfer_send(&priv->i2c_props, i2c_get_afc, ARRAY_SIZE(i2c_get_afc));
422 tuner_i2c_xfer_recv(&priv->i2c_props, &afc, 1);
423 return (afc & 0x80)? 65535:0;
424 }
425
426 /*---------------------------------------------------------------------*/
427
428 static void tda8290_standby(struct dvb_frontend *fe)
429 {
430 struct tda8290_priv *priv = fe->analog_demod_priv;
431
432 unsigned char cb1[] = { 0x30, 0xD0 };
433 unsigned char tda8290_standby[] = { 0x00, 0x02 };
434 unsigned char tda8290_agc_tri[] = { 0x02, 0x20 };
435 struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=cb1, .len = 2};
436
437 tda8290_i2c_bridge(fe, 1);
438 if (priv->ver & TDA8275A)
439 cb1[1] = 0x90;
440 i2c_transfer(priv->i2c_props.adap, &msg, 1);
441 tda8290_i2c_bridge(fe, 0);
442 tuner_i2c_xfer_send(&priv->i2c_props, tda8290_agc_tri, 2);
443 tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2);
444 }
445
446 static void tda8295_standby(struct dvb_frontend *fe)
447 {
448 tda8295_agc1_out(fe, 0); /* Put AGC in tri-state */
449
450 tda8295_power(fe, 0);
451 }
452
453 static void tda8290_init_if(struct dvb_frontend *fe)
454 {
455 struct tda8290_priv *priv = fe->analog_demod_priv;
456 struct tuner *t = priv->t;
457
458 unsigned char set_VS[] = { 0x30, 0x6F };
459 unsigned char set_GP00_CF[] = { 0x20, 0x01 };
460 unsigned char set_GP01_CF[] = { 0x20, 0x0B };
461
462 if ((t->config == 1) || (t->config == 2))
463 tuner_i2c_xfer_send(&priv->i2c_props, set_GP00_CF, 2);
464 else
465 tuner_i2c_xfer_send(&priv->i2c_props, set_GP01_CF, 2);
466 tuner_i2c_xfer_send(&priv->i2c_props, set_VS, 2);
467 }
468
469 static void tda8295_init_if(struct dvb_frontend *fe)
470 {
471 struct tda8290_priv *priv = fe->analog_demod_priv;
472
473 static unsigned char set_adc_ctl[] = { 0x33, 0x14 };
474 static unsigned char set_adc_ctl2[] = { 0x34, 0x00 };
475 static unsigned char set_pll_reg6[] = { 0x3e, 0x63 };
476 static unsigned char set_pll_reg0[] = { 0x38, 0x23 };
477 static unsigned char set_pll_reg7[] = { 0x3f, 0x01 };
478 static unsigned char set_pll_reg10[] = { 0x42, 0x61 };
479 static unsigned char set_gpio_reg0[] = { 0x44, 0x0b };
480
481 tda8295_power(fe, 1);
482
483 tda8295_set_easy_mode(fe, 0);
484 tda8295_set_video_std(fe);
485
486 tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl, 2);
487 tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl2, 2);
488 tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg6, 2);
489 tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg0, 2);
490 tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg7, 2);
491 tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg10, 2);
492 tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_reg0, 2);
493
494 tda8295_agc1_out(fe, 0);
495 tda8295_agc2_out(fe, 0);
496 }
497
498 static void tda8290_init_tuner(struct dvb_frontend *fe)
499 {
500 struct tda8290_priv *priv = fe->analog_demod_priv;
501 unsigned char tda8275_init[] = { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf,
502 0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 };
503 unsigned char tda8275a_init[] = { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b,
504 0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b };
505 struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0,
506 .buf=tda8275_init, .len = 14};
507 if (priv->ver & TDA8275A)
508 msg.buf = tda8275a_init;
509
510 tda8290_i2c_bridge(fe, 1);
511 i2c_transfer(priv->i2c_props.adap, &msg, 1);
512 tda8290_i2c_bridge(fe, 0);
513 }
514
515 /*---------------------------------------------------------------------*/
516
517 static void tda829x_release(struct dvb_frontend *fe)
518 {
519 if (fe->ops.tuner_ops.release)
520 fe->ops.tuner_ops.release(fe);
521
522 kfree(fe->analog_demod_priv);
523 fe->analog_demod_priv = NULL;
524 }
525
526 static int tda829x_find_tuner(struct dvb_frontend *fe)
527 {
528 struct tda8290_priv *priv = fe->analog_demod_priv;
529 struct analog_tuner_ops *ops = fe->ops.analog_demod_ops;
530 struct tuner *t = priv->t;
531 int i, ret, tuners_found;
532 u32 tuner_addrs;
533 u8 data;
534 struct i2c_msg msg = { .flags = I2C_M_RD, .buf = &data, .len = 1 };
535
536 if (NULL == ops)
537 return -EINVAL;
538
539 ops->i2c_gate_ctrl(fe, 1);
540
541 /* probe for tuner chip */
542 tuners_found = 0;
543 tuner_addrs = 0;
544 for (i = 0x60; i <= 0x63; i++) {
545 msg.addr = i;
546 ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
547 if (ret == 1) {
548 tuners_found++;
549 tuner_addrs = (tuner_addrs << 8) + i;
550 }
551 }
552 /* if there is more than one tuner, we expect the right one is
553 behind the bridge and we choose the highest address that doesn't
554 give a response now
555 */
556
557 ops->i2c_gate_ctrl(fe, 0);
558
559 if (tuners_found > 1)
560 for (i = 0; i < tuners_found; i++) {
561 msg.addr = tuner_addrs & 0xff;
562 ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
563 if (ret == 1)
564 tuner_addrs = tuner_addrs >> 8;
565 else
566 break;
567 }
568
569 if (tuner_addrs == 0) {
570 tuner_addrs = 0x60;
571 tuner_info("could not clearly identify tuner address, "
572 "defaulting to %x\n", tuner_addrs);
573 } else {
574 tuner_addrs = tuner_addrs & 0xff;
575 tuner_info("setting tuner address to %x\n", tuner_addrs);
576 }
577 priv->tda827x_addr = tuner_addrs;
578 msg.addr = tuner_addrs;
579
580 ops->i2c_gate_ctrl(fe, 1);
581 ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
582
583 if (ret != 1) {
584 tuner_warn("tuner access failed!\n");
585 return -EREMOTEIO;
586 }
587
588 if (data == 0x83) {
589 priv->ver |= TDA18271;
590 tda18271_attach(&t->fe, priv->tda827x_addr,
591 priv->i2c_props.adap);
592 } else {
593 if ((data & 0x3c) == 0)
594 priv->ver |= TDA8275;
595 else
596 priv->ver |= TDA8275A;
597
598 tda827x_attach(&t->fe, priv->tda827x_addr,
599 priv->i2c_props.adap, &priv->cfg);
600
601 /* FIXME: tda827x module doesn't probe the tuner until
602 * tda827x_initial_sleep is called
603 */
604 if (t->fe.ops.tuner_ops.sleep)
605 t->fe.ops.tuner_ops.sleep(&t->fe);
606 }
607 ops->i2c_gate_ctrl(fe, 0);
608
609 switch (priv->ver) {
610 case TDA8290 | TDA8275:
611 strlcpy(t->i2c.name, "tda8290+75", sizeof(t->i2c.name));
612 break;
613 case TDA8295 | TDA8275:
614 strlcpy(t->i2c.name, "tda8295+75", sizeof(t->i2c.name));
615 break;
616 case TDA8290 | TDA8275A:
617 strlcpy(t->i2c.name, "tda8290+75a", sizeof(t->i2c.name));
618 break;
619 case TDA8295 | TDA8275A:
620 strlcpy(t->i2c.name, "tda8295+75a", sizeof(t->i2c.name));
621 break;
622 case TDA8290 | TDA18271:
623 strlcpy(t->i2c.name, "tda8290+18271", sizeof(t->i2c.name));
624 break;
625 case TDA8295 | TDA18271:
626 strlcpy(t->i2c.name, "tda8295+18271", sizeof(t->i2c.name));
627 break;
628 default:
629 return -EINVAL;
630 }
631
632 return 0;
633 }
634
635 static struct analog_tuner_ops tda8290_tuner_ops = {
636 .set_tv_freq = tda8290_set_freq,
637 .set_radio_freq = tda8290_set_freq,
638 .has_signal = tda8290_has_signal,
639 .standby = tda8290_standby,
640 .release = tda829x_release,
641 .i2c_gate_ctrl = tda8290_i2c_bridge,
642 };
643
644 static struct analog_tuner_ops tda8295_tuner_ops = {
645 .set_tv_freq = tda8295_set_freq,
646 .set_radio_freq = tda8295_set_freq,
647 .has_signal = tda8295_has_signal,
648 .standby = tda8295_standby,
649 .release = tda829x_release,
650 .i2c_gate_ctrl = tda8295_i2c_bridge,
651 };
652
653 int tda829x_attach(struct tuner *t)
654 {
655 struct dvb_frontend *fe = &t->fe;
656 struct tda8290_priv *priv = NULL;
657
658 unsigned char tda8290_id[] = { 0x1f, 0x00 };
659 #define TDA8290_ID 0x89
660 unsigned char tda8295_id[] = { 0x2f, 0x00 };
661 #define TDA8295_ID 0x8a
662
663 priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL);
664 if (priv == NULL)
665 return -ENOMEM;
666 fe->analog_demod_priv = priv;
667
668 priv->i2c_props.addr = t->i2c.addr;
669 priv->i2c_props.adap = t->i2c.adapter;
670 priv->cfg.config = &t->config;
671 priv->cfg.tuner_callback = t->tuner_callback;
672 priv->t = t;
673
674 /* detect tda8290 */
675 tuner_i2c_xfer_send(&priv->i2c_props, &tda8290_id[0], 1);
676 tuner_i2c_xfer_recv(&priv->i2c_props, &tda8290_id[1], 1);
677 if (tda8290_id[1] == TDA8290_ID) {
678 priv->ver = TDA8290;
679 fe->ops.analog_demod_ops = &tda8290_tuner_ops;
680 }
681
682 /* detect tda8295 */
683 tuner_i2c_xfer_send(&priv->i2c_props, &tda8295_id[0], 1);
684 tuner_i2c_xfer_recv(&priv->i2c_props, &tda8295_id[1], 1);
685 if (tda8295_id[1] == TDA8295_ID) {
686 priv->ver = TDA8295;
687 fe->ops.analog_demod_ops = &tda8295_tuner_ops;
688 }
689
690 if (tda829x_find_tuner(fe) < 0)
691 return -EINVAL;
692
693 if (priv->ver & TDA8290) {
694 tda8290_init_tuner(fe);
695 tda8290_init_if(fe);
696 } else if (priv->ver & TDA8295)
697 tda8295_init_if(fe);
698
699 tuner_info("type set to %s\n", t->i2c.name);
700
701 t->mode = V4L2_TUNER_ANALOG_TV;
702
703 return 0;
704 }
705 EXPORT_SYMBOL_GPL(tda829x_attach);
706
707 int tda8290_probe(struct tuner *t)
708 {
709 struct tuner_i2c_props i2c_props = {
710 .adap = t->i2c.adapter,
711 .addr = t->i2c.addr
712 };
713
714 unsigned char soft_reset[] = { 0x00, 0x00 };
715 unsigned char easy_mode_b[] = { 0x01, 0x02 };
716 unsigned char easy_mode_g[] = { 0x01, 0x04 };
717 unsigned char restore_9886[] = { 0x00, 0xd6, 0x30 };
718 unsigned char addr_dto_lsb = 0x07;
719 unsigned char data;
720
721 tuner_i2c_xfer_send(&i2c_props, easy_mode_b, 2);
722 tuner_i2c_xfer_send(&i2c_props, soft_reset, 2);
723 tuner_i2c_xfer_send(&i2c_props, &addr_dto_lsb, 1);
724 tuner_i2c_xfer_recv(&i2c_props, &data, 1);
725 if (data == 0) {
726 tuner_i2c_xfer_send(&i2c_props, easy_mode_g, 2);
727 tuner_i2c_xfer_send(&i2c_props, soft_reset, 2);
728 tuner_i2c_xfer_send(&i2c_props, &addr_dto_lsb, 1);
729 tuner_i2c_xfer_recv(&i2c_props, &data, 1);
730 if (data == 0x7b) {
731 return 0;
732 }
733 }
734 tuner_i2c_xfer_send(&i2c_props, restore_9886, 3);
735 return -1;
736 }
737 EXPORT_SYMBOL_GPL(tda8290_probe);
738
739 MODULE_DESCRIPTION("Philips/NXP TDA8290/TDA8295 analog IF demodulator driver");
740 MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann, Michael Krufky");
741 MODULE_LICENSE("GPL");
742
743 /*
744 * Overrides for Emacs so that we follow Linus's tabbing style.
745 * ---------------------------------------------------------------------------
746 * Local variables:
747 * c-basic-offset: 8
748 * End:
749 */
Linus' kernel tree