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Commit | Line | Data |
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74ba9207 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 | 2 | /* |
de48eebc HH |
3 | |
4 | i2c tv tuner chip device driver | |
5 | controls the philips tda8290+75 tuner chip combo. | |
6 | ||
910bb3e3 MK |
7 | |
8 | This "tda8290" module was split apart from the original "tuner" module. | |
de48eebc HH |
9 | */ |
10 | ||
1da177e4 | 11 | #include <linux/i2c.h> |
5a0e3ad6 | 12 | #include <linux/slab.h> |
1da177e4 | 13 | #include <linux/delay.h> |
7f6adeaf | 14 | #include <linux/videodev2.h> |
ab166050 | 15 | #include "tuner-i2c.h" |
910bb3e3 | 16 | #include "tda8290.h" |
746d9732 | 17 | #include "tda827x.h" |
5bea1cd3 | 18 | #include "tda18271.h" |
910bb3e3 | 19 | |
ab166050 MK |
20 | static int debug; |
21 | module_param(debug, int, 0644); | |
910bb3e3 MK |
22 | MODULE_PARM_DESC(debug, "enable verbose debug messages"); |
23 | ||
9af0ef27 | 24 | static int deemphasis_50; |
b450b92e | 25 | module_param(deemphasis_50, int, 0644); |
9af0ef27 MCC |
26 | MODULE_PARM_DESC(deemphasis_50, "0 - 75us deemphasis; 1 - 50us deemphasis"); |
27 | ||
1da177e4 LT |
28 | /* ---------------------------------------------------------------------- */ |
29 | ||
b2083199 | 30 | struct tda8290_priv { |
db8a6956 MK |
31 | struct tuner_i2c_props i2c_props; |
32 | ||
b2083199 | 33 | unsigned char tda8290_easy_mode; |
746d9732 | 34 | |
b2083199 | 35 | unsigned char tda827x_addr; |
8c125f2c MK |
36 | |
37 | unsigned char ver; | |
38 | #define TDA8290 1 | |
39 | #define TDA8295 2 | |
40 | #define TDA8275 4 | |
41 | #define TDA8275A 8 | |
42 | #define TDA18271 16 | |
1da177e4 | 43 | |
746d9732 | 44 | struct tda827x_config cfg; |
5b0e5350 | 45 | struct tda18271_std_map *tda18271_std_map; |
1da177e4 LT |
46 | }; |
47 | ||
de48eebc | 48 | /*---------------------------------------------------------------------*/ |
1da177e4 | 49 | |
a72dd305 | 50 | static int tda8290_i2c_bridge(struct dvb_frontend *fe, int close) |
de48eebc | 51 | { |
4e9154b8 | 52 | struct tda8290_priv *priv = fe->analog_demod_priv; |
db8a6956 | 53 | |
8ff230fb AB |
54 | static unsigned char enable[2] = { 0x21, 0xC0 }; |
55 | static unsigned char disable[2] = { 0x21, 0x00 }; | |
de48eebc | 56 | unsigned char *msg; |
a72dd305 MK |
57 | |
58 | if (close) { | |
de48eebc | 59 | msg = enable; |
db8a6956 | 60 | tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); |
de48eebc HH |
61 | /* let the bridge stabilize */ |
62 | msleep(20); | |
63 | } else { | |
64 | msg = disable; | |
db8a6956 | 65 | tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); |
de48eebc | 66 | } |
a72dd305 MK |
67 | |
68 | return 0; | |
1da177e4 LT |
69 | } |
70 | ||
a72dd305 | 71 | static int tda8295_i2c_bridge(struct dvb_frontend *fe, int close) |
5bea1cd3 | 72 | { |
4e9154b8 | 73 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 | 74 | |
8ff230fb AB |
75 | static unsigned char enable[2] = { 0x45, 0xc1 }; |
76 | static unsigned char disable[2] = { 0x46, 0x00 }; | |
77 | static unsigned char buf[3] = { 0x45, 0x01, 0x00 }; | |
5bea1cd3 | 78 | unsigned char *msg; |
a72dd305 | 79 | |
5bea1cd3 MK |
80 | if (close) { |
81 | msg = enable; | |
82 | tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); | |
83 | /* let the bridge stabilize */ | |
84 | msleep(20); | |
85 | } else { | |
86 | msg = disable; | |
567aba0b | 87 | tuner_i2c_xfer_send_recv(&priv->i2c_props, msg, 1, &msg[1], 1); |
5bea1cd3 MK |
88 | |
89 | buf[2] = msg[1]; | |
90 | buf[2] &= ~0x04; | |
91 | tuner_i2c_xfer_send(&priv->i2c_props, buf, 3); | |
92 | msleep(5); | |
93 | ||
94 | msg[1] |= 0x04; | |
95 | tuner_i2c_xfer_send(&priv->i2c_props, msg, 2); | |
96 | } | |
a72dd305 MK |
97 | |
98 | return 0; | |
5bea1cd3 MK |
99 | } |
100 | ||
de48eebc HH |
101 | /*---------------------------------------------------------------------*/ |
102 | ||
c7919d52 MK |
103 | static void set_audio(struct dvb_frontend *fe, |
104 | struct analog_parameters *params) | |
1da177e4 | 105 | { |
4e9154b8 | 106 | struct tda8290_priv *priv = fe->analog_demod_priv; |
910bb3e3 MK |
107 | char* mode; |
108 | ||
c7919d52 | 109 | if (params->std & V4L2_STD_MN) { |
910bb3e3 | 110 | priv->tda8290_easy_mode = 0x01; |
910bb3e3 | 111 | mode = "MN"; |
c7919d52 | 112 | } else if (params->std & V4L2_STD_B) { |
910bb3e3 MK |
113 | priv->tda8290_easy_mode = 0x02; |
114 | mode = "B"; | |
c7919d52 | 115 | } else if (params->std & V4L2_STD_GH) { |
910bb3e3 MK |
116 | priv->tda8290_easy_mode = 0x04; |
117 | mode = "GH"; | |
c7919d52 | 118 | } else if (params->std & V4L2_STD_PAL_I) { |
910bb3e3 MK |
119 | priv->tda8290_easy_mode = 0x08; |
120 | mode = "I"; | |
c7919d52 | 121 | } else if (params->std & V4L2_STD_DK) { |
910bb3e3 MK |
122 | priv->tda8290_easy_mode = 0x10; |
123 | mode = "DK"; | |
c7919d52 | 124 | } else if (params->std & V4L2_STD_SECAM_L) { |
910bb3e3 MK |
125 | priv->tda8290_easy_mode = 0x20; |
126 | mode = "L"; | |
c7919d52 | 127 | } else if (params->std & V4L2_STD_SECAM_LC) { |
910bb3e3 MK |
128 | priv->tda8290_easy_mode = 0x40; |
129 | mode = "LC"; | |
130 | } else { | |
910bb3e3 MK |
131 | priv->tda8290_easy_mode = 0x10; |
132 | mode = "xx"; | |
133 | } | |
134 | ||
9af0ef27 | 135 | if (params->mode == V4L2_TUNER_RADIO) { |
3f76cf8c MK |
136 | /* Set TDA8295 to FM radio; Start TDA8290 with MN values */ |
137 | priv->tda8290_easy_mode = (priv->ver & TDA8295) ? 0x80 : 0x01; | |
9af0ef27 MCC |
138 | tuner_dbg("setting to radio FM\n"); |
139 | } else { | |
140 | tuner_dbg("setting tda829x to system %s\n", mode); | |
141 | } | |
910bb3e3 MK |
142 | } |
143 | ||
4c27f1a4 | 144 | static struct { |
9af0ef27 MCC |
145 | unsigned char seq[2]; |
146 | } fm_mode[] = { | |
147 | { { 0x01, 0x81} }, /* Put device into expert mode */ | |
148 | { { 0x03, 0x48} }, /* Disable NOTCH and VIDEO filters */ | |
149 | { { 0x04, 0x04} }, /* Disable color carrier filter (SSIF) */ | |
150 | { { 0x05, 0x04} }, /* ADC headroom */ | |
151 | { { 0x06, 0x10} }, /* group delay flat */ | |
152 | ||
153 | { { 0x07, 0x00} }, /* use the same radio DTO values as a tda8295 */ | |
154 | { { 0x08, 0x00} }, | |
155 | { { 0x09, 0x80} }, | |
156 | { { 0x0a, 0xda} }, | |
157 | { { 0x0b, 0x4b} }, | |
158 | { { 0x0c, 0x68} }, | |
159 | ||
160 | { { 0x0d, 0x00} }, /* PLL off, no video carrier detect */ | |
161 | { { 0x14, 0x00} }, /* disable auto mute if no video */ | |
162 | }; | |
163 | ||
c7919d52 MK |
164 | static void tda8290_set_params(struct dvb_frontend *fe, |
165 | struct analog_parameters *params) | |
910bb3e3 | 166 | { |
4e9154b8 | 167 | struct tda8290_priv *priv = fe->analog_demod_priv; |
4e9154b8 | 168 | |
8ff230fb | 169 | static unsigned char soft_reset[] = { 0x00, 0x00 }; |
b2083199 | 170 | unsigned char easy_mode[] = { 0x01, priv->tda8290_easy_mode }; |
8ff230fb AB |
171 | static unsigned char expert_mode[] = { 0x01, 0x80 }; |
172 | static unsigned char agc_out_on[] = { 0x02, 0x00 }; | |
173 | static unsigned char gainset_off[] = { 0x28, 0x14 }; | |
174 | static unsigned char if_agc_spd[] = { 0x0f, 0x88 }; | |
175 | static unsigned char adc_head_6[] = { 0x05, 0x04 }; | |
176 | static unsigned char adc_head_9[] = { 0x05, 0x02 }; | |
177 | static unsigned char adc_head_12[] = { 0x05, 0x01 }; | |
178 | static unsigned char pll_bw_nom[] = { 0x0d, 0x47 }; | |
179 | static unsigned char pll_bw_low[] = { 0x0d, 0x27 }; | |
180 | static unsigned char gainset_2[] = { 0x28, 0x64 }; | |
181 | static unsigned char agc_rst_on[] = { 0x0e, 0x0b }; | |
182 | static unsigned char agc_rst_off[] = { 0x0e, 0x09 }; | |
183 | static unsigned char if_agc_set[] = { 0x0f, 0x81 }; | |
184 | static unsigned char addr_adc_sat = 0x1a; | |
185 | static unsigned char addr_agc_stat = 0x1d; | |
186 | static unsigned char addr_pll_stat = 0x1b; | |
187 | static unsigned char adc_sat = 0, agc_stat = 0, | |
9a741ec9 | 188 | pll_stat; |
58ef4f92 | 189 | int i; |
de48eebc | 190 | |
c7919d52 | 191 | set_audio(fe, params); |
910bb3e3 | 192 | |
ab166050 | 193 | if (priv->cfg.config) |
7bff4b4d | 194 | tuner_dbg("tda827xa config is 0x%02x\n", priv->cfg.config); |
db8a6956 MK |
195 | tuner_i2c_xfer_send(&priv->i2c_props, easy_mode, 2); |
196 | tuner_i2c_xfer_send(&priv->i2c_props, agc_out_on, 2); | |
197 | tuner_i2c_xfer_send(&priv->i2c_props, soft_reset, 2); | |
de48eebc HH |
198 | msleep(1); |
199 | ||
9af0ef27 | 200 | if (params->mode == V4L2_TUNER_RADIO) { |
9af0ef27 MCC |
201 | unsigned char deemphasis[] = { 0x13, 1 }; |
202 | ||
203 | /* FIXME: allow using a different deemphasis */ | |
204 | ||
205 | if (deemphasis_50) | |
206 | deemphasis[1] = 2; | |
207 | ||
208 | for (i = 0; i < ARRAY_SIZE(fm_mode); i++) | |
209 | tuner_i2c_xfer_send(&priv->i2c_props, fm_mode[i].seq, 2); | |
210 | ||
211 | tuner_i2c_xfer_send(&priv->i2c_props, deemphasis, 2); | |
212 | } else { | |
213 | expert_mode[1] = priv->tda8290_easy_mode + 0x80; | |
214 | tuner_i2c_xfer_send(&priv->i2c_props, expert_mode, 2); | |
215 | tuner_i2c_xfer_send(&priv->i2c_props, gainset_off, 2); | |
216 | tuner_i2c_xfer_send(&priv->i2c_props, if_agc_spd, 2); | |
217 | if (priv->tda8290_easy_mode & 0x60) | |
218 | tuner_i2c_xfer_send(&priv->i2c_props, adc_head_9, 2); | |
219 | else | |
220 | tuner_i2c_xfer_send(&priv->i2c_props, adc_head_6, 2); | |
221 | tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_nom, 2); | |
222 | } | |
de48eebc | 223 | |
ecb71d26 | 224 | |
2f719f7a OZ |
225 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
226 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
746d9732 | 227 | |
4e9154b8 | 228 | if (fe->ops.tuner_ops.set_analog_params) |
c7919d52 | 229 | fe->ops.tuner_ops.set_analog_params(fe, params); |
746d9732 | 230 | |
58ef4f92 | 231 | for (i = 0; i < 3; i++) { |
567aba0b MCC |
232 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
233 | &addr_pll_stat, 1, &pll_stat, 1); | |
58ef4f92 | 234 | if (pll_stat & 0x80) { |
567aba0b MCC |
235 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
236 | &addr_adc_sat, 1, | |
237 | &adc_sat, 1); | |
238 | tuner_i2c_xfer_send_recv(&priv->i2c_props, | |
239 | &addr_agc_stat, 1, | |
240 | &agc_stat, 1); | |
58ef4f92 HH |
241 | tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat); |
242 | break; | |
243 | } else { | |
244 | tuner_dbg("tda8290 not locked, no signal?\n"); | |
245 | msleep(100); | |
246 | } | |
247 | } | |
de48eebc | 248 | /* adjust headroom resp. gain */ |
4ac95af9 HH |
249 | if ((agc_stat > 115) || (!(pll_stat & 0x80) && (adc_sat < 20))) { |
250 | tuner_dbg("adjust gain, step 1. Agc: %d, ADC stat: %d, lock: %d\n", | |
251 | agc_stat, adc_sat, pll_stat & 0x80); | |
db8a6956 | 252 | tuner_i2c_xfer_send(&priv->i2c_props, gainset_2, 2); |
de48eebc | 253 | msleep(100); |
567aba0b MCC |
254 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
255 | &addr_agc_stat, 1, &agc_stat, 1); | |
256 | tuner_i2c_xfer_send_recv(&priv->i2c_props, | |
257 | &addr_pll_stat, 1, &pll_stat, 1); | |
de48eebc | 258 | if ((agc_stat > 115) || !(pll_stat & 0x80)) { |
4ac95af9 HH |
259 | tuner_dbg("adjust gain, step 2. Agc: %d, lock: %d\n", |
260 | agc_stat, pll_stat & 0x80); | |
746d9732 | 261 | if (priv->cfg.agcf) |
4e9154b8 | 262 | priv->cfg.agcf(fe); |
de48eebc | 263 | msleep(100); |
567aba0b MCC |
264 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
265 | &addr_agc_stat, 1, | |
266 | &agc_stat, 1); | |
267 | tuner_i2c_xfer_send_recv(&priv->i2c_props, | |
268 | &addr_pll_stat, 1, | |
269 | &pll_stat, 1); | |
de48eebc HH |
270 | if((agc_stat > 115) || !(pll_stat & 0x80)) { |
271 | tuner_dbg("adjust gain, step 3. Agc: %d\n", agc_stat); | |
db8a6956 MK |
272 | tuner_i2c_xfer_send(&priv->i2c_props, adc_head_12, 2); |
273 | tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_low, 2); | |
de48eebc HH |
274 | msleep(100); |
275 | } | |
276 | } | |
277 | } | |
1da177e4 | 278 | |
de48eebc | 279 | /* l/ l' deadlock? */ |
b2083199 | 280 | if(priv->tda8290_easy_mode & 0x60) { |
567aba0b MCC |
281 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
282 | &addr_adc_sat, 1, | |
283 | &adc_sat, 1); | |
284 | tuner_i2c_xfer_send_recv(&priv->i2c_props, | |
285 | &addr_pll_stat, 1, | |
286 | &pll_stat, 1); | |
de48eebc | 287 | if ((adc_sat > 20) || !(pll_stat & 0x80)) { |
4ac95af9 | 288 | tuner_dbg("trying to resolve SECAM L deadlock\n"); |
db8a6956 | 289 | tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_on, 2); |
de48eebc | 290 | msleep(40); |
db8a6956 | 291 | tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_off, 2); |
de48eebc HH |
292 | } |
293 | } | |
586b0cab | 294 | |
2f719f7a OZ |
295 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
296 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
db8a6956 | 297 | tuner_i2c_xfer_send(&priv->i2c_props, if_agc_set, 2); |
1da177e4 LT |
298 | } |
299 | ||
de48eebc HH |
300 | /*---------------------------------------------------------------------*/ |
301 | ||
4e9154b8 | 302 | static void tda8295_power(struct dvb_frontend *fe, int enable) |
5bea1cd3 | 303 | { |
4e9154b8 | 304 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
305 | unsigned char buf[] = { 0x30, 0x00 }; /* clb_stdbt */ |
306 | ||
567aba0b | 307 | tuner_i2c_xfer_send_recv(&priv->i2c_props, &buf[0], 1, &buf[1], 1); |
5bea1cd3 MK |
308 | |
309 | if (enable) | |
310 | buf[1] = 0x01; | |
311 | else | |
312 | buf[1] = 0x03; | |
313 | ||
314 | tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); | |
315 | } | |
316 | ||
4e9154b8 | 317 | static void tda8295_set_easy_mode(struct dvb_frontend *fe, int enable) |
5bea1cd3 | 318 | { |
4e9154b8 | 319 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
320 | unsigned char buf[] = { 0x01, 0x00 }; |
321 | ||
567aba0b | 322 | tuner_i2c_xfer_send_recv(&priv->i2c_props, &buf[0], 1, &buf[1], 1); |
5bea1cd3 MK |
323 | |
324 | if (enable) | |
325 | buf[1] = 0x01; /* rising edge sets regs 0x02 - 0x23 */ | |
326 | else | |
327 | buf[1] = 0x00; /* reset active bit */ | |
328 | ||
329 | tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); | |
330 | } | |
331 | ||
4e9154b8 | 332 | static void tda8295_set_video_std(struct dvb_frontend *fe) |
5bea1cd3 | 333 | { |
4e9154b8 | 334 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
335 | unsigned char buf[] = { 0x00, priv->tda8290_easy_mode }; |
336 | ||
337 | tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); | |
338 | ||
4e9154b8 | 339 | tda8295_set_easy_mode(fe, 1); |
5bea1cd3 | 340 | msleep(20); |
4e9154b8 | 341 | tda8295_set_easy_mode(fe, 0); |
5bea1cd3 MK |
342 | } |
343 | ||
344 | /*---------------------------------------------------------------------*/ | |
345 | ||
4e9154b8 | 346 | static void tda8295_agc1_out(struct dvb_frontend *fe, int enable) |
5bea1cd3 | 347 | { |
4e9154b8 | 348 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
349 | unsigned char buf[] = { 0x02, 0x00 }; /* DIV_FUNC */ |
350 | ||
567aba0b | 351 | tuner_i2c_xfer_send_recv(&priv->i2c_props, &buf[0], 1, &buf[1], 1); |
5bea1cd3 MK |
352 | |
353 | if (enable) | |
354 | buf[1] &= ~0x40; | |
355 | else | |
356 | buf[1] |= 0x40; | |
357 | ||
358 | tuner_i2c_xfer_send(&priv->i2c_props, buf, 2); | |
359 | } | |
360 | ||
4e9154b8 | 361 | static void tda8295_agc2_out(struct dvb_frontend *fe, int enable) |
5bea1cd3 | 362 | { |
4e9154b8 | 363 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
364 | unsigned char set_gpio_cf[] = { 0x44, 0x00 }; |
365 | unsigned char set_gpio_val[] = { 0x46, 0x00 }; | |
366 | ||
567aba0b MCC |
367 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
368 | &set_gpio_cf[0], 1, &set_gpio_cf[1], 1); | |
369 | tuner_i2c_xfer_send_recv(&priv->i2c_props, | |
370 | &set_gpio_val[0], 1, &set_gpio_val[1], 1); | |
5bea1cd3 MK |
371 | |
372 | set_gpio_cf[1] &= 0xf0; /* clear GPIO_0 bits 3-0 */ | |
373 | ||
374 | if (enable) { | |
375 | set_gpio_cf[1] |= 0x01; /* config GPIO_0 as Open Drain Out */ | |
376 | set_gpio_val[1] &= 0xfe; /* set GPIO_0 pin low */ | |
377 | } | |
378 | tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_cf, 2); | |
379 | tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_val, 2); | |
380 | } | |
381 | ||
dfc2e12d | 382 | static int tda8295_has_signal(struct dvb_frontend *fe, u16 *signal) |
5bea1cd3 | 383 | { |
4e9154b8 | 384 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
385 | |
386 | unsigned char hvpll_stat = 0x26; | |
387 | unsigned char ret; | |
388 | ||
567aba0b | 389 | tuner_i2c_xfer_send_recv(&priv->i2c_props, &hvpll_stat, 1, &ret, 1); |
dfc2e12d HV |
390 | *signal = (ret & 0x01) ? 65535 : 0; |
391 | return 0; | |
5bea1cd3 MK |
392 | } |
393 | ||
394 | /*---------------------------------------------------------------------*/ | |
395 | ||
c7919d52 MK |
396 | static void tda8295_set_params(struct dvb_frontend *fe, |
397 | struct analog_parameters *params) | |
5bea1cd3 | 398 | { |
4e9154b8 | 399 | struct tda8290_priv *priv = fe->analog_demod_priv; |
dfc2e12d | 400 | u16 signal = 0; |
5bea1cd3 MK |
401 | unsigned char blanking_mode[] = { 0x1d, 0x00 }; |
402 | ||
c7919d52 | 403 | set_audio(fe, params); |
5bea1cd3 | 404 | |
7e28adb2 | 405 | tuner_dbg("%s: freq = %d\n", __func__, params->frequency); |
5bea1cd3 | 406 | |
4e9154b8 MK |
407 | tda8295_power(fe, 1); |
408 | tda8295_agc1_out(fe, 1); | |
5bea1cd3 | 409 | |
567aba0b MCC |
410 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
411 | &blanking_mode[0], 1, &blanking_mode[1], 1); | |
5bea1cd3 | 412 | |
4e9154b8 | 413 | tda8295_set_video_std(fe); |
5bea1cd3 MK |
414 | |
415 | blanking_mode[1] = 0x03; | |
416 | tuner_i2c_xfer_send(&priv->i2c_props, blanking_mode, 2); | |
417 | msleep(20); | |
418 | ||
2f719f7a OZ |
419 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
420 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
5bea1cd3 | 421 | |
4e9154b8 | 422 | if (fe->ops.tuner_ops.set_analog_params) |
c7919d52 | 423 | fe->ops.tuner_ops.set_analog_params(fe, params); |
5bea1cd3 MK |
424 | |
425 | if (priv->cfg.agcf) | |
4e9154b8 | 426 | priv->cfg.agcf(fe); |
5bea1cd3 | 427 | |
dfc2e12d HV |
428 | tda8295_has_signal(fe, &signal); |
429 | if (signal) | |
5bea1cd3 MK |
430 | tuner_dbg("tda8295 is locked\n"); |
431 | else | |
432 | tuner_dbg("tda8295 not locked, no signal?\n"); | |
433 | ||
2f719f7a OZ |
434 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
435 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
5bea1cd3 MK |
436 | } |
437 | ||
438 | /*---------------------------------------------------------------------*/ | |
439 | ||
dfc2e12d | 440 | static int tda8290_has_signal(struct dvb_frontend *fe, u16 *signal) |
1da177e4 | 441 | { |
4e9154b8 | 442 | struct tda8290_priv *priv = fe->analog_demod_priv; |
1da177e4 | 443 | |
910bb3e3 MK |
444 | unsigned char i2c_get_afc[1] = { 0x1B }; |
445 | unsigned char afc = 0; | |
1da177e4 | 446 | |
567aba0b MCC |
447 | tuner_i2c_xfer_send_recv(&priv->i2c_props, |
448 | i2c_get_afc, ARRAY_SIZE(i2c_get_afc), &afc, 1); | |
dfc2e12d HV |
449 | *signal = (afc & 0x80) ? 65535 : 0; |
450 | return 0; | |
1da177e4 LT |
451 | } |
452 | ||
de48eebc HH |
453 | /*---------------------------------------------------------------------*/ |
454 | ||
4e9154b8 | 455 | static void tda8290_standby(struct dvb_frontend *fe) |
793cf9e6 | 456 | { |
4e9154b8 MK |
457 | struct tda8290_priv *priv = fe->analog_demod_priv; |
458 | ||
8ff230fb AB |
459 | static unsigned char cb1[] = { 0x30, 0xD0 }; |
460 | static unsigned char tda8290_standby[] = { 0x00, 0x02 }; | |
461 | static unsigned char tda8290_agc_tri[] = { 0x02, 0x20 }; | |
b2083199 | 462 | struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=cb1, .len = 2}; |
de48eebc | 463 | |
2f719f7a OZ |
464 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
465 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
8c125f2c | 466 | if (priv->ver & TDA8275A) |
de48eebc | 467 | cb1[1] = 0x90; |
db8a6956 | 468 | i2c_transfer(priv->i2c_props.adap, &msg, 1); |
2f719f7a OZ |
469 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
470 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
db8a6956 MK |
471 | tuner_i2c_xfer_send(&priv->i2c_props, tda8290_agc_tri, 2); |
472 | tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2); | |
793cf9e6 MCC |
473 | } |
474 | ||
4e9154b8 | 475 | static void tda8295_standby(struct dvb_frontend *fe) |
5bea1cd3 | 476 | { |
4e9154b8 | 477 | tda8295_agc1_out(fe, 0); /* Put AGC in tri-state */ |
5bea1cd3 | 478 | |
4e9154b8 | 479 | tda8295_power(fe, 0); |
5bea1cd3 MK |
480 | } |
481 | ||
4e9154b8 | 482 | static void tda8290_init_if(struct dvb_frontend *fe) |
de48eebc | 483 | { |
4e9154b8 | 484 | struct tda8290_priv *priv = fe->analog_demod_priv; |
db8a6956 | 485 | |
8ff230fb AB |
486 | static unsigned char set_VS[] = { 0x30, 0x6F }; |
487 | static unsigned char set_GP00_CF[] = { 0x20, 0x01 }; | |
488 | static unsigned char set_GP01_CF[] = { 0x20, 0x0B }; | |
de48eebc | 489 | |
1bacb2df OZ |
490 | if ((priv->cfg.config == TDA8290_LNA_GP0_HIGH_ON) || |
491 | (priv->cfg.config == TDA8290_LNA_GP0_HIGH_OFF)) | |
db8a6956 | 492 | tuner_i2c_xfer_send(&priv->i2c_props, set_GP00_CF, 2); |
58ef4f92 | 493 | else |
db8a6956 MK |
494 | tuner_i2c_xfer_send(&priv->i2c_props, set_GP01_CF, 2); |
495 | tuner_i2c_xfer_send(&priv->i2c_props, set_VS, 2); | |
de48eebc HH |
496 | } |
497 | ||
4e9154b8 | 498 | static void tda8295_init_if(struct dvb_frontend *fe) |
5bea1cd3 | 499 | { |
4e9154b8 | 500 | struct tda8290_priv *priv = fe->analog_demod_priv; |
5bea1cd3 MK |
501 | |
502 | static unsigned char set_adc_ctl[] = { 0x33, 0x14 }; | |
503 | static unsigned char set_adc_ctl2[] = { 0x34, 0x00 }; | |
504 | static unsigned char set_pll_reg6[] = { 0x3e, 0x63 }; | |
505 | static unsigned char set_pll_reg0[] = { 0x38, 0x23 }; | |
506 | static unsigned char set_pll_reg7[] = { 0x3f, 0x01 }; | |
507 | static unsigned char set_pll_reg10[] = { 0x42, 0x61 }; | |
508 | static unsigned char set_gpio_reg0[] = { 0x44, 0x0b }; | |
509 | ||
4e9154b8 | 510 | tda8295_power(fe, 1); |
5bea1cd3 | 511 | |
4e9154b8 MK |
512 | tda8295_set_easy_mode(fe, 0); |
513 | tda8295_set_video_std(fe); | |
5bea1cd3 MK |
514 | |
515 | tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl, 2); | |
516 | tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl2, 2); | |
517 | tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg6, 2); | |
518 | tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg0, 2); | |
519 | tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg7, 2); | |
520 | tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg10, 2); | |
521 | tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_reg0, 2); | |
522 | ||
4e9154b8 MK |
523 | tda8295_agc1_out(fe, 0); |
524 | tda8295_agc2_out(fe, 0); | |
5bea1cd3 MK |
525 | } |
526 | ||
4e9154b8 | 527 | static void tda8290_init_tuner(struct dvb_frontend *fe) |
1da177e4 | 528 | { |
4e9154b8 | 529 | struct tda8290_priv *priv = fe->analog_demod_priv; |
8ff230fb AB |
530 | static unsigned char tda8275_init[] = |
531 | { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf, | |
532 | 0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 }; | |
533 | static unsigned char tda8275a_init[] = | |
534 | { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b, | |
535 | 0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b }; | |
b2083199 | 536 | struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, |
c2f6f9d8 | 537 | .buf=tda8275_init, .len = 14}; |
8c125f2c | 538 | if (priv->ver & TDA8275A) |
de48eebc HH |
539 | msg.buf = tda8275a_init; |
540 | ||
2f719f7a OZ |
541 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
542 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
db8a6956 | 543 | i2c_transfer(priv->i2c_props.adap, &msg, 1); |
2f719f7a OZ |
544 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
545 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
de48eebc HH |
546 | } |
547 | ||
548 | /*---------------------------------------------------------------------*/ | |
1da177e4 | 549 | |
4e9154b8 | 550 | static void tda829x_release(struct dvb_frontend *fe) |
024cf530 | 551 | { |
a4f263b5 MK |
552 | struct tda8290_priv *priv = fe->analog_demod_priv; |
553 | ||
006ed1ec MK |
554 | /* only try to release the tuner if we've |
555 | * attached it from within this module */ | |
556 | if (priv->ver & (TDA18271 | TDA8275 | TDA8275A)) | |
a4f263b5 MK |
557 | if (fe->ops.tuner_ops.release) |
558 | fe->ops.tuner_ops.release(fe); | |
024cf530 | 559 | |
4e9154b8 MK |
560 | kfree(fe->analog_demod_priv); |
561 | fe->analog_demod_priv = NULL; | |
910bb3e3 MK |
562 | } |
563 | ||
f21e0d7f MK |
564 | static struct tda18271_config tda829x_tda18271_config = { |
565 | .gate = TDA18271_GATE_ANALOG, | |
566 | }; | |
567 | ||
8c125f2c | 568 | static int tda829x_find_tuner(struct dvb_frontend *fe) |
de48eebc | 569 | { |
8c125f2c | 570 | struct tda8290_priv *priv = fe->analog_demod_priv; |
de48eebc HH |
571 | int i, ret, tuners_found; |
572 | u32 tuner_addrs; | |
8c125f2c MK |
573 | u8 data; |
574 | struct i2c_msg msg = { .flags = I2C_M_RD, .buf = &data, .len = 1 }; | |
de48eebc | 575 | |
2f719f7a OZ |
576 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
577 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
db8a6956 | 578 | |
de48eebc HH |
579 | /* probe for tuner chip */ |
580 | tuners_found = 0; | |
581 | tuner_addrs = 0; | |
8c125f2c | 582 | for (i = 0x60; i <= 0x63; i++) { |
de48eebc | 583 | msg.addr = i; |
db8a6956 | 584 | ret = i2c_transfer(priv->i2c_props.adap, &msg, 1); |
de48eebc HH |
585 | if (ret == 1) { |
586 | tuners_found++; | |
587 | tuner_addrs = (tuner_addrs << 8) + i; | |
588 | } | |
589 | } | |
590 | /* if there is more than one tuner, we expect the right one is | |
591 | behind the bridge and we choose the highest address that doesn't | |
592 | give a response now | |
593 | */ | |
8c125f2c | 594 | |
2f719f7a OZ |
595 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
596 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
8c125f2c MK |
597 | |
598 | if (tuners_found > 1) | |
de48eebc HH |
599 | for (i = 0; i < tuners_found; i++) { |
600 | msg.addr = tuner_addrs & 0xff; | |
db8a6956 | 601 | ret = i2c_transfer(priv->i2c_props.adap, &msg, 1); |
8c125f2c | 602 | if (ret == 1) |
de48eebc HH |
603 | tuner_addrs = tuner_addrs >> 8; |
604 | else | |
605 | break; | |
606 | } | |
8c125f2c | 607 | |
de48eebc | 608 | if (tuner_addrs == 0) { |
8c125f2c | 609 | tuner_addrs = 0x60; |
8ca2e927 MCC |
610 | tuner_info("could not clearly identify tuner address, defaulting to %x\n", |
611 | tuner_addrs); | |
de48eebc HH |
612 | } else { |
613 | tuner_addrs = tuner_addrs & 0xff; | |
910bb3e3 | 614 | tuner_info("setting tuner address to %x\n", tuner_addrs); |
de48eebc | 615 | } |
b2083199 | 616 | priv->tda827x_addr = tuner_addrs; |
de48eebc HH |
617 | msg.addr = tuner_addrs; |
618 | ||
2f719f7a OZ |
619 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
620 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 1); | |
db8a6956 | 621 | ret = i2c_transfer(priv->i2c_props.adap, &msg, 1); |
910bb3e3 | 622 | |
8c125f2c MK |
623 | if (ret != 1) { |
624 | tuner_warn("tuner access failed!\n"); | |
2f719f7a OZ |
625 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
626 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
8c125f2c | 627 | return -EREMOTEIO; |
de48eebc | 628 | } |
746d9732 | 629 | |
255b5113 | 630 | if ((data == 0x83) || (data == 0x84)) { |
8c125f2c | 631 | priv->ver |= TDA18271; |
adcc4b3e | 632 | tda829x_tda18271_config.config = priv->cfg.config; |
5b0e5350 | 633 | tda829x_tda18271_config.std_map = priv->tda18271_std_map; |
a07c8779 MK |
634 | dvb_attach(tda18271_attach, fe, priv->tda827x_addr, |
635 | priv->i2c_props.adap, &tda829x_tda18271_config); | |
8c125f2c MK |
636 | } else { |
637 | if ((data & 0x3c) == 0) | |
638 | priv->ver |= TDA8275; | |
639 | else | |
640 | priv->ver |= TDA8275A; | |
7fd8b263 | 641 | |
a07c8779 MK |
642 | dvb_attach(tda827x_attach, fe, priv->tda827x_addr, |
643 | priv->i2c_props.adap, &priv->cfg); | |
7bff4b4d | 644 | priv->cfg.switch_addr = priv->i2c_props.addr; |
8c125f2c | 645 | } |
6881647c MK |
646 | if (fe->ops.tuner_ops.init) |
647 | fe->ops.tuner_ops.init(fe); | |
63c25480 | 648 | |
6881647c MK |
649 | if (fe->ops.tuner_ops.sleep) |
650 | fe->ops.tuner_ops.sleep(fe); | |
63c25480 | 651 | |
2f719f7a OZ |
652 | if (fe->ops.analog_ops.i2c_gate_ctrl) |
653 | fe->ops.analog_ops.i2c_gate_ctrl(fe, 0); | |
746d9732 | 654 | |
746d9732 | 655 | return 0; |
1da177e4 | 656 | } |
5bea1cd3 | 657 | |
f1f32849 MK |
658 | static int tda8290_probe(struct tuner_i2c_props *i2c_props) |
659 | { | |
660 | #define TDA8290_ID 0x89 | |
567aba0b MCC |
661 | u8 reg = 0x1f, id; |
662 | struct i2c_msg msg_read[] = { | |
89a8969a JW |
663 | { .addr = i2c_props->addr, .flags = 0, .len = 1, .buf = ® }, |
664 | { .addr = i2c_props->addr, .flags = I2C_M_RD, .len = 1, .buf = &id }, | |
567aba0b | 665 | }; |
f1f32849 MK |
666 | |
667 | /* detect tda8290 */ | |
567aba0b | 668 | if (i2c_transfer(i2c_props->adap, msg_read, 2) != 2) { |
89a8969a | 669 | printk(KERN_WARNING "%s: couldn't read register 0x%02x\n", |
567aba0b MCC |
670 | __func__, reg); |
671 | return -ENODEV; | |
672 | } | |
f1f32849 | 673 | |
567aba0b | 674 | if (id == TDA8290_ID) { |
ab166050 | 675 | if (debug) |
f1f32849 | 676 | printk(KERN_DEBUG "%s: tda8290 detected @ %d-%04x\n", |
7e28adb2 | 677 | __func__, i2c_adapter_id(i2c_props->adap), |
f1f32849 MK |
678 | i2c_props->addr); |
679 | return 0; | |
680 | } | |
1f3a4e32 | 681 | return -ENODEV; |
f1f32849 MK |
682 | } |
683 | ||
684 | static int tda8295_probe(struct tuner_i2c_props *i2c_props) | |
685 | { | |
686 | #define TDA8295_ID 0x8a | |
19f8a6c3 | 687 | #define TDA8295C2_ID 0x8b |
567aba0b MCC |
688 | u8 reg = 0x2f, id; |
689 | struct i2c_msg msg_read[] = { | |
89a8969a JW |
690 | { .addr = i2c_props->addr, .flags = 0, .len = 1, .buf = ® }, |
691 | { .addr = i2c_props->addr, .flags = I2C_M_RD, .len = 1, .buf = &id }, | |
567aba0b | 692 | }; |
f1f32849 | 693 | |
89a8969a | 694 | /* detect tda8295 */ |
567aba0b | 695 | if (i2c_transfer(i2c_props->adap, msg_read, 2) != 2) { |
89a8969a | 696 | printk(KERN_WARNING "%s: couldn't read register 0x%02x\n", |
567aba0b MCC |
697 | __func__, reg); |
698 | return -ENODEV; | |
699 | } | |
f1f32849 | 700 | |
567aba0b | 701 | if ((id & 0xfe) == TDA8295_ID) { |
ab166050 | 702 | if (debug) |
19f8a6c3 | 703 | printk(KERN_DEBUG "%s: %s detected @ %d-%04x\n", |
567aba0b | 704 | __func__, (id == TDA8295_ID) ? |
19f8a6c3 MK |
705 | "tda8295c1" : "tda8295c2", |
706 | i2c_adapter_id(i2c_props->adap), | |
f1f32849 MK |
707 | i2c_props->addr); |
708 | return 0; | |
709 | } | |
710 | ||
1f3a4e32 | 711 | return -ENODEV; |
f1f32849 MK |
712 | } |
713 | ||
bd336e63 | 714 | static const struct analog_demod_ops tda8290_ops = { |
c7919d52 | 715 | .set_params = tda8290_set_params, |
8c125f2c MK |
716 | .has_signal = tda8290_has_signal, |
717 | .standby = tda8290_standby, | |
718 | .release = tda829x_release, | |
719 | .i2c_gate_ctrl = tda8290_i2c_bridge, | |
720 | }; | |
721 | ||
bd336e63 | 722 | static const struct analog_demod_ops tda8295_ops = { |
c7919d52 | 723 | .set_params = tda8295_set_params, |
8c125f2c MK |
724 | .has_signal = tda8295_has_signal, |
725 | .standby = tda8295_standby, | |
726 | .release = tda829x_release, | |
727 | .i2c_gate_ctrl = tda8295_i2c_bridge, | |
728 | }; | |
729 | ||
ab166050 MK |
730 | struct dvb_frontend *tda829x_attach(struct dvb_frontend *fe, |
731 | struct i2c_adapter *i2c_adap, u8 i2c_addr, | |
732 | struct tda829x_config *cfg) | |
5bea1cd3 MK |
733 | { |
734 | struct tda8290_priv *priv = NULL; | |
ab166050 | 735 | char *name; |
8c125f2c | 736 | |
5bea1cd3 MK |
737 | priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL); |
738 | if (priv == NULL) | |
ab166050 | 739 | return NULL; |
8c125f2c | 740 | fe->analog_demod_priv = priv; |
5bea1cd3 | 741 | |
ab166050 MK |
742 | priv->i2c_props.addr = i2c_addr; |
743 | priv->i2c_props.adap = i2c_adap; | |
2756665c | 744 | priv->i2c_props.name = "tda829x"; |
5b0e5350 OZ |
745 | if (cfg) { |
746 | priv->cfg.config = cfg->lna_cfg; | |
747 | priv->tda18271_std_map = cfg->tda18271_std_map; | |
748 | } | |
5bea1cd3 | 749 | |
f1f32849 | 750 | if (tda8290_probe(&priv->i2c_props) == 0) { |
8c125f2c | 751 | priv->ver = TDA8290; |
bc3e5c7f MK |
752 | memcpy(&fe->ops.analog_ops, &tda8290_ops, |
753 | sizeof(struct analog_demod_ops)); | |
5bea1cd3 | 754 | } |
8c125f2c | 755 | |
f1f32849 | 756 | if (tda8295_probe(&priv->i2c_props) == 0) { |
8c125f2c | 757 | priv->ver = TDA8295; |
bc3e5c7f MK |
758 | memcpy(&fe->ops.analog_ops, &tda8295_ops, |
759 | sizeof(struct analog_demod_ops)); | |
5bea1cd3 | 760 | } |
5bea1cd3 | 761 | |
2f719f7a OZ |
762 | if (cfg && cfg->no_i2c_gate) |
763 | fe->ops.analog_ops.i2c_gate_ctrl = NULL; | |
764 | ||
9d700a06 MCC |
765 | if (!(cfg) || (TDA829X_PROBE_TUNER == cfg->probe_tuner)) { |
766 | tda8295_power(fe, 1); | |
767 | if (tda829x_find_tuner(fe) < 0) | |
768 | goto fail; | |
47ab285a | 769 | } |
5bea1cd3 | 770 | |
ab166050 | 771 | switch (priv->ver) { |
c9076279 MK |
772 | case TDA8290: |
773 | name = "tda8290"; | |
774 | break; | |
775 | case TDA8295: | |
776 | name = "tda8295"; | |
777 | break; | |
ab166050 MK |
778 | case TDA8290 | TDA8275: |
779 | name = "tda8290+75"; | |
780 | break; | |
781 | case TDA8295 | TDA8275: | |
782 | name = "tda8295+75"; | |
783 | break; | |
784 | case TDA8290 | TDA8275A: | |
785 | name = "tda8290+75a"; | |
786 | break; | |
787 | case TDA8295 | TDA8275A: | |
788 | name = "tda8295+75a"; | |
789 | break; | |
790 | case TDA8290 | TDA18271: | |
791 | name = "tda8290+18271"; | |
792 | break; | |
793 | case TDA8295 | TDA18271: | |
794 | name = "tda8295+18271"; | |
795 | break; | |
796 | default: | |
797 | goto fail; | |
798 | } | |
799 | tuner_info("type set to %s\n", name); | |
800 | ||
0f2ce983 MK |
801 | fe->ops.analog_ops.info.name = name; |
802 | ||
8c125f2c | 803 | if (priv->ver & TDA8290) { |
439b72b6 MK |
804 | if (priv->ver & (TDA8275 | TDA8275A)) |
805 | tda8290_init_tuner(fe); | |
8c125f2c MK |
806 | tda8290_init_if(fe); |
807 | } else if (priv->ver & TDA8295) | |
808 | tda8295_init_if(fe); | |
5bea1cd3 | 809 | |
ab166050 | 810 | return fe; |
fa746aee MK |
811 | |
812 | fail: | |
9d700a06 MCC |
813 | memset(&fe->ops.analog_ops, 0, sizeof(struct analog_demod_ops)); |
814 | ||
fa746aee | 815 | tda829x_release(fe); |
ab166050 | 816 | return NULL; |
5bea1cd3 | 817 | } |
8c125f2c | 818 | EXPORT_SYMBOL_GPL(tda829x_attach); |
1da177e4 | 819 | |
ab166050 | 820 | int tda829x_probe(struct i2c_adapter *i2c_adap, u8 i2c_addr) |
95736034 | 821 | { |
910bb3e3 | 822 | struct tuner_i2c_props i2c_props = { |
ab166050 MK |
823 | .adap = i2c_adap, |
824 | .addr = i2c_addr, | |
910bb3e3 | 825 | }; |
db8a6956 | 826 | |
8ff230fb AB |
827 | static unsigned char soft_reset[] = { 0x00, 0x00 }; |
828 | static unsigned char easy_mode_b[] = { 0x01, 0x02 }; | |
829 | static unsigned char easy_mode_g[] = { 0x01, 0x04 }; | |
830 | static unsigned char restore_9886[] = { 0x00, 0xd6, 0x30 }; | |
831 | static unsigned char addr_dto_lsb = 0x07; | |
95736034 | 832 | unsigned char data; |
a818e1c8 MK |
833 | #define PROBE_BUFFER_SIZE 8 |
834 | unsigned char buf[PROBE_BUFFER_SIZE]; | |
835 | int i; | |
836 | ||
837 | /* rule out tda9887, which would return the same byte repeatedly */ | |
567aba0b MCC |
838 | tuner_i2c_xfer_send_recv(&i2c_props, |
839 | soft_reset, 1, buf, PROBE_BUFFER_SIZE); | |
a818e1c8 | 840 | for (i = 1; i < PROBE_BUFFER_SIZE; i++) { |
bbe1e0ba MK |
841 | if (buf[i] != buf[0]) |
842 | break; | |
a818e1c8 MK |
843 | } |
844 | ||
845 | /* all bytes are equal, not a tda829x - probably a tda9887 */ | |
846 | if (i == PROBE_BUFFER_SIZE) | |
847 | return -ENODEV; | |
95736034 | 848 | |
f1f32849 MK |
849 | if ((tda8290_probe(&i2c_props) == 0) || |
850 | (tda8295_probe(&i2c_props) == 0)) | |
851 | return 0; | |
852 | ||
853 | /* fall back to old probing method */ | |
910bb3e3 MK |
854 | tuner_i2c_xfer_send(&i2c_props, easy_mode_b, 2); |
855 | tuner_i2c_xfer_send(&i2c_props, soft_reset, 2); | |
567aba0b | 856 | tuner_i2c_xfer_send_recv(&i2c_props, &addr_dto_lsb, 1, &data, 1); |
95736034 | 857 | if (data == 0) { |
910bb3e3 MK |
858 | tuner_i2c_xfer_send(&i2c_props, easy_mode_g, 2); |
859 | tuner_i2c_xfer_send(&i2c_props, soft_reset, 2); | |
567aba0b MCC |
860 | tuner_i2c_xfer_send_recv(&i2c_props, |
861 | &addr_dto_lsb, 1, &data, 1); | |
95736034 HH |
862 | if (data == 0x7b) { |
863 | return 0; | |
864 | } | |
865 | } | |
910bb3e3 | 866 | tuner_i2c_xfer_send(&i2c_props, restore_9886, 3); |
1f3a4e32 | 867 | return -ENODEV; |
95736034 | 868 | } |
f1f32849 | 869 | EXPORT_SYMBOL_GPL(tda829x_probe); |
910bb3e3 | 870 | |
8c125f2c | 871 | MODULE_DESCRIPTION("Philips/NXP TDA8290/TDA8295 analog IF demodulator driver"); |
5bea1cd3 | 872 | MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann, Michael Krufky"); |
910bb3e3 | 873 | MODULE_LICENSE("GPL"); |