Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
de48eebc HH |
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. | |
910bb3e3 MK |
19 | |
20 | This "tda8290" module was split apart from the original "tuner" module. | |
de48eebc HH |
21 | */ |
22 | ||
1da177e4 | 23 | #include <linux/i2c.h> |
5a0e3ad6 | 24 | #include <linux/slab.h> |
1da177e4 | 25 | #include <linux/delay.h> |
7f6adeaf | 26 | #include <linux/videodev2.h> |
ab166050 | 27 | #include "tuner-i2c.h" |
910bb3e3 | 28 | #include "tda8290.h" |
746d9732 | 29 | #include "tda827x.h" |
5bea1cd3 | 30 | #include "tda18271.h" |
910bb3e3 | 31 | |
ab166050 MK |
32 | static int debug; |
33 | module_param(debug, int, 0644); | |
910bb3e3 MK |
34 | MODULE_PARM_DESC(debug, "enable verbose debug messages"); |
35 | ||
9af0ef27 | 36 | static int deemphasis_50; |
b450b92e | 37 | module_param(deemphasis_50, int, 0644); |
9af0ef27 MCC |
38 | MODULE_PARM_DESC(deemphasis_50, "0 - 75us deemphasis; 1 - 50us deemphasis"); |
39 | ||
1da177e4 LT |
40 | /* ---------------------------------------------------------------------- */ |
41 | ||
b2083199 | 42 | struct tda8290_priv { |
db8a6956 MK |
43 | struct tuner_i2c_props i2c_props; |
44 | ||
b2083199 | 45 | unsigned char tda8290_easy_mode; |
746d9732 | 46 | |
b2083199 | 47 | unsigned char tda827x_addr; |
8c125f2c MK |
48 | |
49 | unsigned char ver; | |
50 | #define TDA8290 1 | |
51 | #define TDA8295 2 | |
52 | #define TDA8275 4 | |
53 | #define TDA8275A 8 | |
54 | #define TDA18271 16 | |
1da177e4 | 55 | |
746d9732 | 56 | struct tda827x_config cfg; |
5b0e5350 | 57 | struct tda18271_std_map *tda18271_std_map; |
1da177e4 LT |
58 | }; |
59 | ||
de48eebc | 60 | /*---------------------------------------------------------------------*/ |
1da177e4 | 61 | |
a72dd305 | 62 | static int tda8290_i2c_bridge(struct dvb_frontend *fe, int close) |
de48eebc | 63 | { |
4e9154b8 | 64 | struct tda8290_priv *priv = fe->analog_demod_priv; |
db8a6956 | 65 | |
de48eebc | 66 | unsigned char enable[2] = { 0x21, 0xC0 }; |
0157a9cc | 67 | unsigned char disable[2] = { 0x21, 0x00 }; |
de48eebc | 68 | unsigned char *msg; |
a72dd305 MK |
69 | |
70 | if (close) { | |
de48eebc | 71 | msg = enable; |
db8a6956 | 72 | tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); |
de48eebc HH |
73 | /* let the bridge stabilize */ |
74 | msleep(20); | |
75 | } else { | |
76 | msg = disable; | |
db8a6956 | 77 | tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); |
de48eebc | 78 | } |
a72dd305 MK |
79 | |
80 | return 0; | |
1da177e4 LT |
81 | } |
82 | ||
a72dd305 | 83 | static int tda8295_i2c_bridge(struct dvb_frontend *fe, int close) |
5bea1cd3 | 84 | { |
4e9154b8 | 85 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
86 | |
87 | unsigned char enable[2] = { 0x45, 0xc1 }; | |
88 | unsigned char disable[2] = { 0x46, 0x00 }; | |
89 | unsigned char buf[3] = { 0x45, 0x01, 0x00 }; | |
90 | unsigned char *msg; | |
a72dd305 | 91 | |
5bea1cd3 MK |
92 | if (close) { |
93 | msg = enable; | |
94 | tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); | |
95 | /* let the bridge stabilize */ | |
96 | msleep(20); | |
97 | } else { | |
98 | msg = disable; | |
567aba0b | 99 | tuner_i2c_xfer_send_recv(&priv->i2c_props, msg, 1, &msg[1], 1); |
5bea1cd3 MK |
100 | |
101 | buf[2] = msg[1]; | |
102 | buf[2] &= ~0x04; | |
103 | tuner_i2c_xfer_send(&priv->i2c_props, buf, 3); | |
104 | msleep(5); | |
105 | ||
106 | msg[1] |= 0x04; | |
107 | tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); | |
108 | } | |
a72dd305 MK |
109 | |
110 | return 0; | |
5bea1cd3 MK |
111 | } |
112 | ||
de48eebc HH |
113 | /*---------------------------------------------------------------------*/ |
114 | ||
c7919d52 MK |
115 | static void set_audio(struct dvb_frontend *fe, |
116 | struct analog_parameters *params) | |
1da177e4 | 117 | { |
4e9154b8 | 118 | struct tda8290_priv *priv = fe->analog_demod_priv; |
910bb3e3 MK |
119 | char* mode; |
120 | ||
c7919d52 | 121 | if (params->std & V4L2_STD_MN) { |
910bb3e3 | 122 | priv->tda8290_easy_mode = 0x01; |
910bb3e3 | 123 | mode = "MN"; |
c7919d52 | 124 | } else if (params->std & V4L2_STD_B) { |
910bb3e3 MK |
125 | priv->tda8290_easy_mode = 0x02; |
126 | mode = "B"; | |
c7919d52 | 127 | } else if (params->std & V4L2_STD_GH) { |
910bb3e3 MK |
128 | priv->tda8290_easy_mode = 0x04; |
129 | mode = "GH"; | |
c7919d52 | 130 | } else if (params->std & V4L2_STD_PAL_I) { |
910bb3e3 MK |
131 | priv->tda8290_easy_mode = 0x08; |
132 | mode = "I"; | |
c7919d52 | 133 | } else if (params->std & V4L2_STD_DK) { |
910bb3e3 MK |
134 | priv->tda8290_easy_mode = 0x10; |
135 | mode = "DK"; | |
c7919d52 | 136 | } else if (params->std & V4L2_STD_SECAM_L) { |
910bb3e3 MK |
137 | priv->tda8290_easy_mode = 0x20; |
138 | mode = "L"; | |
c7919d52 | 139 | } else if (params->std & V4L2_STD_SECAM_LC) { |
910bb3e3 MK |
140 | priv->tda8290_easy_mode = 0x40; |
141 | mode = "LC"; | |
142 | } else { | |
910bb3e3 MK |
143 | priv->tda8290_easy_mode = 0x10; |
144 | mode = "xx"; | |
145 | } | |
146 | ||
9af0ef27 | 147 | if (params->mode == V4L2_TUNER_RADIO) { |
3f76cf8c MK |
148 | /* Set TDA8295 to FM radio; Start TDA8290 with MN values */ |
149 | priv->tda8290_easy_mode = (priv->ver & TDA8295) ? 0x80 : 0x01; | |
9af0ef27 MCC |
150 | tuner_dbg("setting to radio FM\n"); |
151 | } else { | |
152 | tuner_dbg("setting tda829x to system %s\n", mode); | |
153 | } | |
910bb3e3 MK |
154 | } |
155 | ||
4c27f1a4 | 156 | static struct { |
9af0ef27 MCC |
157 | unsigned char seq[2]; |
158 | } fm_mode[] = { | |
159 | { { 0x01, 0x81} }, /* Put device into expert mode */ | |
160 | { { 0x03, 0x48} }, /* Disable NOTCH and VIDEO filters */ | |
161 | { { 0x04, 0x04} }, /* Disable color carrier filter (SSIF) */ | |
162 | { { 0x05, 0x04} }, /* ADC headroom */ | |
163 | { { 0x06, 0x10} }, /* group delay flat */ | |
164 | ||
165 | { { 0x07, 0x00} }, /* use the same radio DTO values as a tda8295 */ | |
166 | { { 0x08, 0x00} }, | |
167 | { { 0x09, 0x80} }, | |
168 | { { 0x0a, 0xda} }, | |
169 | { { 0x0b, 0x4b} }, | |
170 | { { 0x0c, 0x68} }, | |
171 | ||
172 | { { 0x0d, 0x00} }, /* PLL off, no video carrier detect */ | |
173 | { { 0x14, 0x00} }, /* disable auto mute if no video */ | |
174 | }; | |
175 | ||
c7919d52 MK |
176 | static void tda8290_set_params(struct dvb_frontend *fe, |
177 | struct analog_parameters *params) | |
910bb3e3 | 178 | { |
4e9154b8 | 179 | struct tda8290_priv *priv = fe->analog_demod_priv; |
4e9154b8 | 180 | |
de48eebc | 181 | unsigned char soft_reset[] = { 0x00, 0x00 }; |
b2083199 | 182 | unsigned char easy_mode[] = { 0x01, priv->tda8290_easy_mode }; |
de48eebc | 183 | unsigned char expert_mode[] = { 0x01, 0x80 }; |
0157a9cc | 184 | unsigned char agc_out_on[] = { 0x02, 0x00 }; |
de48eebc HH |
185 | unsigned char gainset_off[] = { 0x28, 0x14 }; |
186 | unsigned char if_agc_spd[] = { 0x0f, 0x88 }; | |
187 | unsigned char adc_head_6[] = { 0x05, 0x04 }; | |
188 | unsigned char adc_head_9[] = { 0x05, 0x02 }; | |
189 | unsigned char adc_head_12[] = { 0x05, 0x01 }; | |
190 | unsigned char pll_bw_nom[] = { 0x0d, 0x47 }; | |
191 | unsigned char pll_bw_low[] = { 0x0d, 0x27 }; | |
192 | unsigned char gainset_2[] = { 0x28, 0x64 }; | |
193 | unsigned char agc_rst_on[] = { 0x0e, 0x0b }; | |
194 | unsigned char agc_rst_off[] = { 0x0e, 0x09 }; | |
195 | unsigned char if_agc_set[] = { 0x0f, 0x81 }; | |
196 | unsigned char addr_adc_sat = 0x1a; | |
197 | unsigned char addr_agc_stat = 0x1d; | |
198 | unsigned char addr_pll_stat = 0x1b; | |
199 | unsigned char adc_sat, agc_stat, | |
9a741ec9 | 200 | pll_stat; |
58ef4f92 | 201 | int i; |
de48eebc | 202 | |
c7919d52 | 203 | set_audio(fe, params); |
910bb3e3 | 204 | |
ab166050 | 205 | if (priv->cfg.config) |
7bff4b4d | 206 | tuner_dbg("tda827xa config is 0x%02x\n", priv->cfg.config); |
db8a6956 MK |
207 | tuner_i2c_xfer_send(&priv->i2c_props, easy_mode, 2); |
208 | tuner_i2c_xfer_send(&priv->i2c_props, agc_out_on, 2); | |
209 | tuner_i2c_xfer_send(&priv->i2c_props, soft_reset, 2); | |
de48eebc HH |
210 | msleep(1); |
211 | ||
9af0ef27 | 212 | if (params->mode == V4L2_TUNER_RADIO) { |
9af0ef27 MCC |
213 | unsigned char deemphasis[] = { 0x13, 1 }; |
214 | ||
215 | /* FIXME: allow using a different deemphasis */ | |
216 | ||
217 | if (deemphasis_50) | |
218 | deemphasis[1] = 2; | |
219 | ||
220 | for (i = 0; i < ARRAY_SIZE(fm_mode); i++) | |
221 | tuner_i2c_xfer_send(&priv->i2c_props, fm_mode[i].seq, 2); | |
222 | ||
223 | tuner_i2c_xfer_send(&priv->i2c_props, deemphasis, 2); | |
224 | } else { | |
225 | expert_mode[1] = priv->tda8290_easy_mode + 0x80; | |
226 | tuner_i2c_xfer_send(&priv->i2c_props, expert_mode, 2); | |
227 | tuner_i2c_xfer_send(&priv->i2c_props, gainset_off, 2); | |
228 | tuner_i2c_xfer_send(&priv->i2c_props, if_agc_spd, 2); | |
229 | if (priv->tda8290_easy_mode & 0x60) | |
230 | tuner_i2c_xfer_send(&priv->i2c_props, adc_head_9, 2); | |
231 | else | |
232 | tuner_i2c_xfer_send(&priv->i2c_props, adc_head_6, 2); | |
233 | tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_nom, 2); | |
234 | } | |
de48eebc | 235 | |
ecb71d26 | 236 | |
2f719f7a OZ |
237 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
238 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
746d9732 | 239 | |
4e9154b8 | 240 | if (fe->ops.tuner_ops.set_analog_params) |
c7919d52 | 241 | fe->ops.tuner_ops.set_analog_params(fe, params); |
746d9732 | 242 | |
58ef4f92 | 243 | for (i = 0; i < 3; i++) { |
567aba0b MCC |
244 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
245 | &addr_pll_stat, 1, &pll_stat, 1); | |
58ef4f92 | 246 | if (pll_stat & 0x80) { |
567aba0b MCC |
247 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
248 | &addr_adc_sat, 1, | |
249 | &adc_sat, 1); | |
250 | tuner_i2c_xfer_send_recv(&priv->i2c_props, | |
251 | &addr_agc_stat, 1, | |
252 | &agc_stat, 1); | |
58ef4f92 HH |
253 | tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat); |
254 | break; | |
255 | } else { | |
256 | tuner_dbg("tda8290 not locked, no signal?\n"); | |
257 | msleep(100); | |
258 | } | |
259 | } | |
de48eebc | 260 | /* adjust headroom resp. gain */ |
4ac95af9 HH |
261 | if ((agc_stat > 115) || (!(pll_stat & 0x80) && (adc_sat < 20))) { |
262 | tuner_dbg("adjust gain, step 1. Agc: %d, ADC stat: %d, lock: %d\n", | |
263 | agc_stat, adc_sat, pll_stat & 0x80); | |
db8a6956 | 264 | tuner_i2c_xfer_send(&priv->i2c_props, gainset_2, 2); |
de48eebc | 265 | msleep(100); |
567aba0b MCC |
266 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
267 | &addr_agc_stat, 1, &agc_stat, 1); | |
268 | tuner_i2c_xfer_send_recv(&priv->i2c_props, | |
269 | &addr_pll_stat, 1, &pll_stat, 1); | |
de48eebc | 270 | if ((agc_stat > 115) || !(pll_stat & 0x80)) { |
4ac95af9 HH |
271 | tuner_dbg("adjust gain, step 2. Agc: %d, lock: %d\n", |
272 | agc_stat, pll_stat & 0x80); | |
746d9732 | 273 | if (priv->cfg.agcf) |
4e9154b8 | 274 | priv->cfg.agcf(fe); |
de48eebc | 275 | msleep(100); |
567aba0b MCC |
276 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
277 | &addr_agc_stat, 1, | |
278 | &agc_stat, 1); | |
279 | tuner_i2c_xfer_send_recv(&priv->i2c_props, | |
280 | &addr_pll_stat, 1, | |
281 | &pll_stat, 1); | |
de48eebc HH |
282 | if((agc_stat > 115) || !(pll_stat & 0x80)) { |
283 | tuner_dbg("adjust gain, step 3. Agc: %d\n", agc_stat); | |
db8a6956 MK |
284 | tuner_i2c_xfer_send(&priv->i2c_props, adc_head_12, 2); |
285 | tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_low, 2); | |
de48eebc HH |
286 | msleep(100); |
287 | } | |
288 | } | |
289 | } | |
1da177e4 | 290 | |
de48eebc | 291 | /* l/ l' deadlock? */ |
b2083199 | 292 | if(priv->tda8290_easy_mode & 0x60) { |
567aba0b MCC |
293 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
294 | &addr_adc_sat, 1, | |
295 | &adc_sat, 1); | |
296 | tuner_i2c_xfer_send_recv(&priv->i2c_props, | |
297 | &addr_pll_stat, 1, | |
298 | &pll_stat, 1); | |
de48eebc | 299 | if ((adc_sat > 20) || !(pll_stat & 0x80)) { |
4ac95af9 | 300 | tuner_dbg("trying to resolve SECAM L deadlock\n"); |
db8a6956 | 301 | tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_on, 2); |
de48eebc | 302 | msleep(40); |
db8a6956 | 303 | tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_off, 2); |
de48eebc HH |
304 | } |
305 | } | |
586b0cab | 306 | |
2f719f7a OZ |
307 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
308 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
db8a6956 | 309 | tuner_i2c_xfer_send(&priv->i2c_props, if_agc_set, 2); |
1da177e4 LT |
310 | } |
311 | ||
de48eebc HH |
312 | /*---------------------------------------------------------------------*/ |
313 | ||
4e9154b8 | 314 | static void tda8295_power(struct dvb_frontend *fe, int enable) |
5bea1cd3 | 315 | { |
4e9154b8 | 316 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
317 | unsigned char buf[] = { 0x30, 0x00 }; /* clb_stdbt */ |
318 | ||
567aba0b | 319 | tuner_i2c_xfer_send_recv(&priv->i2c_props, &buf[0], 1, &buf[1], 1); |
5bea1cd3 MK |
320 | |
321 | if (enable) | |
322 | buf[1] = 0x01; | |
323 | else | |
324 | buf[1] = 0x03; | |
325 | ||
326 | tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); | |
327 | } | |
328 | ||
4e9154b8 | 329 | static void tda8295_set_easy_mode(struct dvb_frontend *fe, int enable) |
5bea1cd3 | 330 | { |
4e9154b8 | 331 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
332 | unsigned char buf[] = { 0x01, 0x00 }; |
333 | ||
567aba0b | 334 | tuner_i2c_xfer_send_recv(&priv->i2c_props, &buf[0], 1, &buf[1], 1); |
5bea1cd3 MK |
335 | |
336 | if (enable) | |
337 | buf[1] = 0x01; /* rising edge sets regs 0x02 - 0x23 */ | |
338 | else | |
339 | buf[1] = 0x00; /* reset active bit */ | |
340 | ||
341 | tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); | |
342 | } | |
343 | ||
4e9154b8 | 344 | static void tda8295_set_video_std(struct dvb_frontend *fe) |
5bea1cd3 | 345 | { |
4e9154b8 | 346 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
347 | unsigned char buf[] = { 0x00, priv->tda8290_easy_mode }; |
348 | ||
349 | tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); | |
350 | ||
4e9154b8 | 351 | tda8295_set_easy_mode(fe, 1); |
5bea1cd3 | 352 | msleep(20); |
4e9154b8 | 353 | tda8295_set_easy_mode(fe, 0); |
5bea1cd3 MK |
354 | } |
355 | ||
356 | /*---------------------------------------------------------------------*/ | |
357 | ||
4e9154b8 | 358 | static void tda8295_agc1_out(struct dvb_frontend *fe, int enable) |
5bea1cd3 | 359 | { |
4e9154b8 | 360 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
361 | unsigned char buf[] = { 0x02, 0x00 }; /* DIV_FUNC */ |
362 | ||
567aba0b | 363 | tuner_i2c_xfer_send_recv(&priv->i2c_props, &buf[0], 1, &buf[1], 1); |
5bea1cd3 MK |
364 | |
365 | if (enable) | |
366 | buf[1] &= ~0x40; | |
367 | else | |
368 | buf[1] |= 0x40; | |
369 | ||
370 | tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); | |
371 | } | |
372 | ||
4e9154b8 | 373 | static void tda8295_agc2_out(struct dvb_frontend *fe, int enable) |
5bea1cd3 | 374 | { |
4e9154b8 | 375 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
376 | unsigned char set_gpio_cf[] = { 0x44, 0x00 }; |
377 | unsigned char set_gpio_val[] = { 0x46, 0x00 }; | |
378 | ||
567aba0b MCC |
379 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
380 | &set_gpio_cf[0], 1, &set_gpio_cf[1], 1); | |
381 | tuner_i2c_xfer_send_recv(&priv->i2c_props, | |
382 | &set_gpio_val[0], 1, &set_gpio_val[1], 1); | |
5bea1cd3 MK |
383 | |
384 | set_gpio_cf[1] &= 0xf0; /* clear GPIO_0 bits 3-0 */ | |
385 | ||
386 | if (enable) { | |
387 | set_gpio_cf[1] |= 0x01; /* config GPIO_0 as Open Drain Out */ | |
388 | set_gpio_val[1] &= 0xfe; /* set GPIO_0 pin low */ | |
389 | } | |
390 | tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_cf, 2); | |
391 | tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_val, 2); | |
392 | } | |
393 | ||
dfc2e12d | 394 | static int tda8295_has_signal(struct dvb_frontend *fe, u16 *signal) |
5bea1cd3 | 395 | { |
4e9154b8 | 396 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
397 | |
398 | unsigned char hvpll_stat = 0x26; | |
399 | unsigned char ret; | |
400 | ||
567aba0b | 401 | tuner_i2c_xfer_send_recv(&priv->i2c_props, &hvpll_stat, 1, &ret, 1); |
dfc2e12d HV |
402 | *signal = (ret & 0x01) ? 65535 : 0; |
403 | return 0; | |
5bea1cd3 MK |
404 | } |
405 | ||
406 | /*---------------------------------------------------------------------*/ | |
407 | ||
c7919d52 MK |
408 | static void tda8295_set_params(struct dvb_frontend *fe, |
409 | struct analog_parameters *params) | |
5bea1cd3 | 410 | { |
4e9154b8 | 411 | struct tda8290_priv *priv = fe->analog_demod_priv; |
dfc2e12d | 412 | u16 signal = 0; |
5bea1cd3 MK |
413 | unsigned char blanking_mode[] = { 0x1d, 0x00 }; |
414 | ||
c7919d52 | 415 | set_audio(fe, params); |
5bea1cd3 | 416 | |
7e28adb2 | 417 | tuner_dbg("%s: freq = %d\n", __func__, params->frequency); |
5bea1cd3 | 418 | |
4e9154b8 MK |
419 | tda8295_power(fe, 1); |
420 | tda8295_agc1_out(fe, 1); | |
5bea1cd3 | 421 | |
567aba0b MCC |
422 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
423 | &blanking_mode[0], 1, &blanking_mode[1], 1); | |
5bea1cd3 | 424 | |
4e9154b8 | 425 | tda8295_set_video_std(fe); |
5bea1cd3 MK |
426 | |
427 | blanking_mode[1] = 0x03; | |
428 | tuner_i2c_xfer_send(&priv->i2c_props, blanking_mode, 2); | |
429 | msleep(20); | |
430 | ||
2f719f7a OZ |
431 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
432 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
5bea1cd3 | 433 | |
4e9154b8 | 434 | if (fe->ops.tuner_ops.set_analog_params) |
c7919d52 | 435 | fe->ops.tuner_ops.set_analog_params(fe, params); |
5bea1cd3 MK |
436 | |
437 | if (priv->cfg.agcf) | |
4e9154b8 | 438 | priv->cfg.agcf(fe); |
5bea1cd3 | 439 | |
dfc2e12d HV |
440 | tda8295_has_signal(fe, &signal); |
441 | if (signal) | |
5bea1cd3 MK |
442 | tuner_dbg("tda8295 is locked\n"); |
443 | else | |
444 | tuner_dbg("tda8295 not locked, no signal?\n"); | |
445 | ||
2f719f7a OZ |
446 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
447 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
5bea1cd3 MK |
448 | } |
449 | ||
450 | /*---------------------------------------------------------------------*/ | |
451 | ||
dfc2e12d | 452 | static int tda8290_has_signal(struct dvb_frontend *fe, u16 *signal) |
1da177e4 | 453 | { |
4e9154b8 | 454 | struct tda8290_priv *priv = fe->analog_demod_priv; |
1da177e4 | 455 | |
910bb3e3 MK |
456 | unsigned char i2c_get_afc[1] = { 0x1B }; |
457 | unsigned char afc = 0; | |
1da177e4 | 458 | |
567aba0b MCC |
459 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
460 | i2c_get_afc, ARRAY_SIZE(i2c_get_afc), &afc, 1); | |
dfc2e12d HV |
461 | *signal = (afc & 0x80) ? 65535 : 0; |
462 | return 0; | |
1da177e4 LT |
463 | } |
464 | ||
de48eebc HH |
465 | /*---------------------------------------------------------------------*/ |
466 | ||
4e9154b8 | 467 | static void tda8290_standby(struct dvb_frontend *fe) |
793cf9e6 | 468 | { |
4e9154b8 MK |
469 | struct tda8290_priv *priv = fe->analog_demod_priv; |
470 | ||
de48eebc HH |
471 | unsigned char cb1[] = { 0x30, 0xD0 }; |
472 | unsigned char tda8290_standby[] = { 0x00, 0x02 }; | |
0157a9cc | 473 | unsigned char tda8290_agc_tri[] = { 0x02, 0x20 }; |
b2083199 | 474 | struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=cb1, .len = 2}; |
de48eebc | 475 | |
2f719f7a OZ |
476 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
477 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
8c125f2c | 478 | if (priv->ver & TDA8275A) |
de48eebc | 479 | cb1[1] = 0x90; |
db8a6956 | 480 | i2c_transfer(priv->i2c_props.adap, &msg, 1); |
2f719f7a OZ |
481 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
482 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
db8a6956 MK |
483 | tuner_i2c_xfer_send(&priv->i2c_props, tda8290_agc_tri, 2); |
484 | tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2); | |
793cf9e6 MCC |
485 | } |
486 | ||
4e9154b8 | 487 | static void tda8295_standby(struct dvb_frontend *fe) |
5bea1cd3 | 488 | { |
4e9154b8 | 489 | tda8295_agc1_out(fe, 0); /* Put AGC in tri-state */ |
5bea1cd3 | 490 | |
4e9154b8 | 491 | tda8295_power(fe, 0); |
5bea1cd3 MK |
492 | } |
493 | ||
4e9154b8 | 494 | static void tda8290_init_if(struct dvb_frontend *fe) |
de48eebc | 495 | { |
4e9154b8 | 496 | struct tda8290_priv *priv = fe->analog_demod_priv; |
db8a6956 | 497 | |
de48eebc | 498 | unsigned char set_VS[] = { 0x30, 0x6F }; |
58ef4f92 | 499 | unsigned char set_GP00_CF[] = { 0x20, 0x01 }; |
de48eebc HH |
500 | unsigned char set_GP01_CF[] = { 0x20, 0x0B }; |
501 | ||
1bacb2df OZ |
502 | if ((priv->cfg.config == TDA8290_LNA_GP0_HIGH_ON) || |
503 | (priv->cfg.config == TDA8290_LNA_GP0_HIGH_OFF)) | |
db8a6956 | 504 | tuner_i2c_xfer_send(&priv->i2c_props, set_GP00_CF, 2); |
58ef4f92 | 505 | else |
db8a6956 MK |
506 | tuner_i2c_xfer_send(&priv->i2c_props, set_GP01_CF, 2); |
507 | tuner_i2c_xfer_send(&priv->i2c_props, set_VS, 2); | |
de48eebc HH |
508 | } |
509 | ||
4e9154b8 | 510 | static void tda8295_init_if(struct dvb_frontend *fe) |
5bea1cd3 | 511 | { |
4e9154b8 | 512 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
513 | |
514 | static unsigned char set_adc_ctl[] = { 0x33, 0x14 }; | |
515 | static unsigned char set_adc_ctl2[] = { 0x34, 0x00 }; | |
516 | static unsigned char set_pll_reg6[] = { 0x3e, 0x63 }; | |
517 | static unsigned char set_pll_reg0[] = { 0x38, 0x23 }; | |
518 | static unsigned char set_pll_reg7[] = { 0x3f, 0x01 }; | |
519 | static unsigned char set_pll_reg10[] = { 0x42, 0x61 }; | |
520 | static unsigned char set_gpio_reg0[] = { 0x44, 0x0b }; | |
521 | ||
4e9154b8 | 522 | tda8295_power(fe, 1); |
5bea1cd3 | 523 | |
4e9154b8 MK |
524 | tda8295_set_easy_mode(fe, 0); |
525 | tda8295_set_video_std(fe); | |
5bea1cd3 MK |
526 | |
527 | tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl, 2); | |
528 | tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl2, 2); | |
529 | tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg6, 2); | |
530 | tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg0, 2); | |
531 | tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg7, 2); | |
532 | tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg10, 2); | |
533 | tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_reg0, 2); | |
534 | ||
4e9154b8 MK |
535 | tda8295_agc1_out(fe, 0); |
536 | tda8295_agc2_out(fe, 0); | |
5bea1cd3 MK |
537 | } |
538 | ||
4e9154b8 | 539 | static void tda8290_init_tuner(struct dvb_frontend *fe) |
1da177e4 | 540 | { |
4e9154b8 | 541 | struct tda8290_priv *priv = fe->analog_demod_priv; |
de48eebc | 542 | unsigned char tda8275_init[] = { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf, |
9a741ec9 | 543 | 0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 }; |
de48eebc | 544 | unsigned char tda8275a_init[] = { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b, |
9a741ec9 | 545 | 0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b }; |
b2083199 | 546 | struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, |
c2f6f9d8 | 547 | .buf=tda8275_init, .len = 14}; |
8c125f2c | 548 | if (priv->ver & TDA8275A) |
de48eebc HH |
549 | msg.buf = tda8275a_init; |
550 | ||
2f719f7a OZ |
551 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
552 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
db8a6956 | 553 | i2c_transfer(priv->i2c_props.adap, &msg, 1); |
2f719f7a OZ |
554 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
555 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
de48eebc HH |
556 | } |
557 | ||
558 | /*---------------------------------------------------------------------*/ | |
1da177e4 | 559 | |
4e9154b8 | 560 | static void tda829x_release(struct dvb_frontend *fe) |
024cf530 | 561 | { |
a4f263b5 MK |
562 | struct tda8290_priv *priv = fe->analog_demod_priv; |
563 | ||
006ed1ec MK |
564 | /* only try to release the tuner if we've |
565 | * attached it from within this module */ | |
566 | if (priv->ver & (TDA18271 | TDA8275 | TDA8275A)) | |
a4f263b5 MK |
567 | if (fe->ops.tuner_ops.release) |
568 | fe->ops.tuner_ops.release(fe); | |
024cf530 | 569 | |
4e9154b8 MK |
570 | kfree(fe->analog_demod_priv); |
571 | fe->analog_demod_priv = NULL; | |
910bb3e3 MK |
572 | } |
573 | ||
f21e0d7f MK |
574 | static struct tda18271_config tda829x_tda18271_config = { |
575 | .gate = TDA18271_GATE_ANALOG, | |
576 | }; | |
577 | ||
8c125f2c | 578 | static int tda829x_find_tuner(struct dvb_frontend *fe) |
de48eebc | 579 | { |
8c125f2c | 580 | struct tda8290_priv *priv = fe->analog_demod_priv; |
de48eebc HH |
581 | int i, ret, tuners_found; |
582 | u32 tuner_addrs; | |
8c125f2c MK |
583 | u8 data; |
584 | struct i2c_msg msg = { .flags = I2C_M_RD, .buf = &data, .len = 1 }; | |
de48eebc | 585 | |
2f719f7a OZ |
586 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
587 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
db8a6956 | 588 | |
de48eebc HH |
589 | /* probe for tuner chip */ |
590 | tuners_found = 0; | |
591 | tuner_addrs = 0; | |
8c125f2c | 592 | for (i = 0x60; i <= 0x63; i++) { |
de48eebc | 593 | msg.addr = i; |
db8a6956 | 594 | ret = i2c_transfer(priv->i2c_props.adap, &msg, 1); |
de48eebc HH |
595 | if (ret == 1) { |
596 | tuners_found++; | |
597 | tuner_addrs = (tuner_addrs << 8) + i; | |
598 | } | |
599 | } | |
600 | /* if there is more than one tuner, we expect the right one is | |
601 | behind the bridge and we choose the highest address that doesn't | |
602 | give a response now | |
603 | */ | |
8c125f2c | 604 | |
2f719f7a OZ |
605 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
606 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
8c125f2c MK |
607 | |
608 | if (tuners_found > 1) | |
de48eebc HH |
609 | for (i = 0; i < tuners_found; i++) { |
610 | msg.addr = tuner_addrs & 0xff; | |
db8a6956 | 611 | ret = i2c_transfer(priv->i2c_props.adap, &msg, 1); |
8c125f2c | 612 | if (ret == 1) |
de48eebc HH |
613 | tuner_addrs = tuner_addrs >> 8; |
614 | else | |
615 | break; | |
616 | } | |
8c125f2c | 617 | |
de48eebc | 618 | if (tuner_addrs == 0) { |
8c125f2c MK |
619 | tuner_addrs = 0x60; |
620 | tuner_info("could not clearly identify tuner address, " | |
621 | "defaulting to %x\n", tuner_addrs); | |
de48eebc HH |
622 | } else { |
623 | tuner_addrs = tuner_addrs & 0xff; | |
910bb3e3 | 624 | tuner_info("setting tuner address to %x\n", tuner_addrs); |
de48eebc | 625 | } |
b2083199 | 626 | priv->tda827x_addr = tuner_addrs; |
de48eebc HH |
627 | msg.addr = tuner_addrs; |
628 | ||
2f719f7a OZ |
629 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
630 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
db8a6956 | 631 | ret = i2c_transfer(priv->i2c_props.adap, &msg, 1); |
910bb3e3 | 632 | |
8c125f2c MK |
633 | if (ret != 1) { |
634 | tuner_warn("tuner access failed!\n"); | |
2f719f7a OZ |
635 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
636 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
8c125f2c | 637 | return -EREMOTEIO; |
de48eebc | 638 | } |
746d9732 | 639 | |
255b5113 | 640 | if ((data == 0x83) || (data == 0x84)) { |
8c125f2c | 641 | priv->ver |= TDA18271; |
adcc4b3e | 642 | tda829x_tda18271_config.config = priv->cfg.config; |
5b0e5350 | 643 | tda829x_tda18271_config.std_map = priv->tda18271_std_map; |
a07c8779 MK |
644 | dvb_attach(tda18271_attach, fe, priv->tda827x_addr, |
645 | priv->i2c_props.adap, &tda829x_tda18271_config); | |
8c125f2c MK |
646 | } else { |
647 | if ((data & 0x3c) == 0) | |
648 | priv->ver |= TDA8275; | |
649 | else | |
650 | priv->ver |= TDA8275A; | |
7fd8b263 | 651 | |
a07c8779 MK |
652 | dvb_attach(tda827x_attach, fe, priv->tda827x_addr, |
653 | priv->i2c_props.adap, &priv->cfg); | |
7bff4b4d | 654 | priv->cfg.switch_addr = priv->i2c_props.addr; |
8c125f2c | 655 | } |
6881647c MK |
656 | if (fe->ops.tuner_ops.init) |
657 | fe->ops.tuner_ops.init(fe); | |
63c25480 | 658 | |
6881647c MK |
659 | if (fe->ops.tuner_ops.sleep) |
660 | fe->ops.tuner_ops.sleep(fe); | |
63c25480 | 661 | |
2f719f7a OZ |
662 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
663 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
746d9732 | 664 | |
746d9732 | 665 | return 0; |
1da177e4 | 666 | } |
5bea1cd3 | 667 | |
f1f32849 MK |
668 | static int tda8290_probe(struct tuner_i2c_props *i2c_props) |
669 | { | |
670 | #define TDA8290_ID 0x89 | |
567aba0b MCC |
671 | u8 reg = 0x1f, id; |
672 | struct i2c_msg msg_read[] = { | |
89a8969a JW |
673 | { .addr = i2c_props->addr, .flags = 0, .len = 1, .buf = ® }, |
674 | { .addr = i2c_props->addr, .flags = I2C_M_RD, .len = 1, .buf = &id }, | |
567aba0b | 675 | }; |
f1f32849 MK |
676 | |
677 | /* detect tda8290 */ | |
567aba0b | 678 | if (i2c_transfer(i2c_props->adap, msg_read, 2) != 2) { |
89a8969a | 679 | printk(KERN_WARNING "%s: couldn't read register 0x%02x\n", |
567aba0b MCC |
680 | __func__, reg); |
681 | return -ENODEV; | |
682 | } | |
f1f32849 | 683 | |
567aba0b | 684 | if (id == TDA8290_ID) { |
ab166050 | 685 | if (debug) |
f1f32849 | 686 | printk(KERN_DEBUG "%s: tda8290 detected @ %d-%04x\n", |
7e28adb2 | 687 | __func__, i2c_adapter_id(i2c_props->adap), |
f1f32849 MK |
688 | i2c_props->addr); |
689 | return 0; | |
690 | } | |
1f3a4e32 | 691 | return -ENODEV; |
f1f32849 MK |
692 | } |
693 | ||
694 | static int tda8295_probe(struct tuner_i2c_props *i2c_props) | |
695 | { | |
696 | #define TDA8295_ID 0x8a | |
19f8a6c3 | 697 | #define TDA8295C2_ID 0x8b |
567aba0b MCC |
698 | u8 reg = 0x2f, id; |
699 | struct i2c_msg msg_read[] = { | |
89a8969a JW |
700 | { .addr = i2c_props->addr, .flags = 0, .len = 1, .buf = ® }, |
701 | { .addr = i2c_props->addr, .flags = I2C_M_RD, .len = 1, .buf = &id }, | |
567aba0b | 702 | }; |
f1f32849 | 703 | |
89a8969a | 704 | /* detect tda8295 */ |
567aba0b | 705 | if (i2c_transfer(i2c_props->adap, msg_read, 2) != 2) { |
89a8969a | 706 | printk(KERN_WARNING "%s: couldn't read register 0x%02x\n", |
567aba0b MCC |
707 | __func__, reg); |
708 | return -ENODEV; | |
709 | } | |
f1f32849 | 710 | |
567aba0b | 711 | if ((id & 0xfe) == TDA8295_ID) { |
ab166050 | 712 | if (debug) |
19f8a6c3 | 713 | printk(KERN_DEBUG "%s: %s detected @ %d-%04x\n", |
567aba0b | 714 | __func__, (id == TDA8295_ID) ? |
19f8a6c3 MK |
715 | "tda8295c1" : "tda8295c2", |
716 | i2c_adapter_id(i2c_props->adap), | |
f1f32849 MK |
717 | i2c_props->addr); |
718 | return 0; | |
719 | } | |
720 | ||
1f3a4e32 | 721 | return -ENODEV; |
f1f32849 MK |
722 | } |
723 | ||
bc3e5c7f | 724 | static struct analog_demod_ops tda8290_ops = { |
c7919d52 | 725 | .set_params = tda8290_set_params, |
8c125f2c MK |
726 | .has_signal = tda8290_has_signal, |
727 | .standby = tda8290_standby, | |
728 | .release = tda829x_release, | |
729 | .i2c_gate_ctrl = tda8290_i2c_bridge, | |
730 | }; | |
731 | ||
bc3e5c7f | 732 | static struct analog_demod_ops tda8295_ops = { |
c7919d52 | 733 | .set_params = tda8295_set_params, |
8c125f2c MK |
734 | .has_signal = tda8295_has_signal, |
735 | .standby = tda8295_standby, | |
736 | .release = tda829x_release, | |
737 | .i2c_gate_ctrl = tda8295_i2c_bridge, | |
738 | }; | |
739 | ||
ab166050 MK |
740 | struct dvb_frontend *tda829x_attach(struct dvb_frontend *fe, |
741 | struct i2c_adapter *i2c_adap, u8 i2c_addr, | |
742 | struct tda829x_config *cfg) | |
5bea1cd3 MK |
743 | { |
744 | struct tda8290_priv *priv = NULL; | |
ab166050 | 745 | char *name; |
8c125f2c | 746 | |
5bea1cd3 MK |
747 | priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL); |
748 | if (priv == NULL) | |
ab166050 | 749 | return NULL; |
8c125f2c | 750 | fe->analog_demod_priv = priv; |
5bea1cd3 | 751 | |
ab166050 MK |
752 | priv->i2c_props.addr = i2c_addr; |
753 | priv->i2c_props.adap = i2c_adap; | |
2756665c | 754 | priv->i2c_props.name = "tda829x"; |
5b0e5350 OZ |
755 | if (cfg) { |
756 | priv->cfg.config = cfg->lna_cfg; | |
757 | priv->tda18271_std_map = cfg->tda18271_std_map; | |
758 | } | |
5bea1cd3 | 759 | |
f1f32849 | 760 | if (tda8290_probe(&priv->i2c_props) == 0) { |
8c125f2c | 761 | priv->ver = TDA8290; |
bc3e5c7f MK |
762 | memcpy(&fe->ops.analog_ops, &tda8290_ops, |
763 | sizeof(struct analog_demod_ops)); | |
5bea1cd3 | 764 | } |
8c125f2c | 765 | |
f1f32849 | 766 | if (tda8295_probe(&priv->i2c_props) == 0) { |
8c125f2c | 767 | priv->ver = TDA8295; |
bc3e5c7f MK |
768 | memcpy(&fe->ops.analog_ops, &tda8295_ops, |
769 | sizeof(struct analog_demod_ops)); | |
5bea1cd3 | 770 | } |
5bea1cd3 | 771 | |
2f719f7a OZ |
772 | if (cfg && cfg->no_i2c_gate) |
773 | fe->ops.analog_ops.i2c_gate_ctrl = NULL; | |
774 | ||
9d700a06 MCC |
775 | if (!(cfg) || (TDA829X_PROBE_TUNER == cfg->probe_tuner)) { |
776 | tda8295_power(fe, 1); | |
777 | if (tda829x_find_tuner(fe) < 0) | |
778 | goto fail; | |
47ab285a | 779 | } |
5bea1cd3 | 780 | |
ab166050 | 781 | switch (priv->ver) { |
c9076279 MK |
782 | case TDA8290: |
783 | name = "tda8290"; | |
784 | break; | |
785 | case TDA8295: | |
786 | name = "tda8295"; | |
787 | break; | |
ab166050 MK |
788 | case TDA8290 | TDA8275: |
789 | name = "tda8290+75"; | |
790 | break; | |
791 | case TDA8295 | TDA8275: | |
792 | name = "tda8295+75"; | |
793 | break; | |
794 | case TDA8290 | TDA8275A: | |
795 | name = "tda8290+75a"; | |
796 | break; | |
797 | case TDA8295 | TDA8275A: | |
798 | name = "tda8295+75a"; | |
799 | break; | |
800 | case TDA8290 | TDA18271: | |
801 | name = "tda8290+18271"; | |
802 | break; | |
803 | case TDA8295 | TDA18271: | |
804 | name = "tda8295+18271"; | |
805 | break; | |
806 | default: | |
807 | goto fail; | |
808 | } | |
809 | tuner_info("type set to %s\n", name); | |
810 | ||
0f2ce983 MK |
811 | fe->ops.analog_ops.info.name = name; |
812 | ||
8c125f2c | 813 | if (priv->ver & TDA8290) { |
439b72b6 MK |
814 | if (priv->ver & (TDA8275 | TDA8275A)) |
815 | tda8290_init_tuner(fe); | |
8c125f2c MK |
816 | tda8290_init_if(fe); |
817 | } else if (priv->ver & TDA8295) | |
818 | tda8295_init_if(fe); | |
5bea1cd3 | 819 | |
ab166050 | 820 | return fe; |
fa746aee MK |
821 | |
822 | fail: | |
9d700a06 MCC |
823 | memset(&fe->ops.analog_ops, 0, sizeof(struct analog_demod_ops)); |
824 | ||
fa746aee | 825 | tda829x_release(fe); |
ab166050 | 826 | return NULL; |
5bea1cd3 | 827 | } |
8c125f2c | 828 | EXPORT_SYMBOL_GPL(tda829x_attach); |
1da177e4 | 829 | |
ab166050 | 830 | int tda829x_probe(struct i2c_adapter *i2c_adap, u8 i2c_addr) |
95736034 | 831 | { |
910bb3e3 | 832 | struct tuner_i2c_props i2c_props = { |
ab166050 MK |
833 | .adap = i2c_adap, |
834 | .addr = i2c_addr, | |
910bb3e3 | 835 | }; |
db8a6956 | 836 | |
44fd06fa HH |
837 | unsigned char soft_reset[] = { 0x00, 0x00 }; |
838 | unsigned char easy_mode_b[] = { 0x01, 0x02 }; | |
839 | unsigned char easy_mode_g[] = { 0x01, 0x04 }; | |
840 | unsigned char restore_9886[] = { 0x00, 0xd6, 0x30 }; | |
95736034 HH |
841 | unsigned char addr_dto_lsb = 0x07; |
842 | unsigned char data; | |
a818e1c8 MK |
843 | #define PROBE_BUFFER_SIZE 8 |
844 | unsigned char buf[PROBE_BUFFER_SIZE]; | |
845 | int i; | |
846 | ||
847 | /* rule out tda9887, which would return the same byte repeatedly */ | |
567aba0b MCC |
848 | tuner_i2c_xfer_send_recv(&i2c_props, |
849 | soft_reset, 1, buf, PROBE_BUFFER_SIZE); | |
a818e1c8 | 850 | for (i = 1; i < PROBE_BUFFER_SIZE; i++) { |
bbe1e0ba MK |
851 | if (buf[i] != buf[0]) |
852 | break; | |
a818e1c8 MK |
853 | } |
854 | ||
855 | /* all bytes are equal, not a tda829x - probably a tda9887 */ | |
856 | if (i == PROBE_BUFFER_SIZE) | |
857 | return -ENODEV; | |
95736034 | 858 | |
f1f32849 MK |
859 | if ((tda8290_probe(&i2c_props) == 0) || |
860 | (tda8295_probe(&i2c_props) == 0)) | |
861 | return 0; | |
862 | ||
863 | /* fall back to old probing method */ | |
910bb3e3 MK |
864 | tuner_i2c_xfer_send(&i2c_props, easy_mode_b, 2); |
865 | tuner_i2c_xfer_send(&i2c_props, soft_reset, 2); | |
567aba0b | 866 | tuner_i2c_xfer_send_recv(&i2c_props, &addr_dto_lsb, 1, &data, 1); |
95736034 | 867 | if (data == 0) { |
910bb3e3 MK |
868 | tuner_i2c_xfer_send(&i2c_props, easy_mode_g, 2); |
869 | tuner_i2c_xfer_send(&i2c_props, soft_reset, 2); | |
567aba0b MCC |
870 | tuner_i2c_xfer_send_recv(&i2c_props, |
871 | &addr_dto_lsb, 1, &data, 1); | |
95736034 HH |
872 | if (data == 0x7b) { |
873 | return 0; | |
874 | } | |
875 | } | |
910bb3e3 | 876 | tuner_i2c_xfer_send(&i2c_props, restore_9886, 3); |
1f3a4e32 | 877 | return -ENODEV; |
95736034 | 878 | } |
f1f32849 | 879 | EXPORT_SYMBOL_GPL(tda829x_probe); |
910bb3e3 | 880 | |
8c125f2c | 881 | MODULE_DESCRIPTION("Philips/NXP TDA8290/TDA8295 analog IF demodulator driver"); |
5bea1cd3 | 882 | MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann, Michael Krufky"); |
910bb3e3 | 883 | MODULE_LICENSE("GPL"); |