Commit | Line | Data |
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7e8b09ea HV |
1 | /* |
2 | * Programming the mspx4xx sound processor family | |
3 | * | |
4 | * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
19 | */ | |
20 | ||
21 | ||
22 | #include <linux/kernel.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/i2c.h> | |
26 | #include <linux/videodev.h> | |
27 | #include <linux/videodev2.h> | |
28 | #include <media/v4l2-common.h> | |
29 | #include <media/audiochip.h> | |
30 | #include <linux/kthread.h> | |
31 | #include <linux/suspend.h> | |
32 | #include "msp3400.h" | |
33 | ||
34 | /* this one uses the automatic sound standard detection of newer msp34xx | |
35 | chip versions */ | |
36 | static struct { | |
37 | int retval; | |
38 | int main, second; | |
39 | char *name; | |
5af0c8f6 | 40 | } msp_stdlist[] = { |
7e8b09ea HV |
41 | { 0x0000, 0, 0, "could not detect sound standard" }, |
42 | { 0x0001, 0, 0, "autodetect start" }, | |
43 | { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" }, | |
44 | { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" }, | |
45 | { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" }, | |
46 | { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" }, | |
47 | { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" }, | |
48 | { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" }, | |
49 | { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" }, | |
50 | { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" }, | |
51 | { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" }, | |
52 | { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" }, | |
53 | { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" }, | |
54 | { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" }, | |
55 | { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" }, | |
56 | { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" }, | |
57 | { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" }, | |
58 | { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" }, | |
59 | { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" }, | |
60 | { -1, 0, 0, NULL }, /* EOF */ | |
61 | }; | |
62 | ||
63 | static struct msp3400c_init_data_dem { | |
64 | int fir1[6]; | |
65 | int fir2[6]; | |
66 | int cdo1; | |
67 | int cdo2; | |
68 | int ad_cv; | |
69 | int mode_reg; | |
70 | int dsp_src; | |
71 | int dsp_matrix; | |
72 | } msp3400c_init_data[] = { | |
73 | { /* AM (for carrier detect / msp3400) */ | |
74 | {75, 19, 36, 35, 39, 40}, | |
75 | {75, 19, 36, 35, 39, 40}, | |
76 | MSP_CARRIER(5.5), MSP_CARRIER(5.5), | |
77 | 0x00d0, 0x0500, 0x0020, 0x3000 | |
78 | },{ /* AM (for carrier detect / msp3410) */ | |
79 | {-1, -1, -8, 2, 59, 126}, | |
80 | {-1, -1, -8, 2, 59, 126}, | |
81 | MSP_CARRIER(5.5), MSP_CARRIER(5.5), | |
82 | 0x00d0, 0x0100, 0x0020, 0x3000 | |
83 | },{ /* FM Radio */ | |
84 | {-8, -8, 4, 6, 78, 107}, | |
85 | {-8, -8, 4, 6, 78, 107}, | |
86 | MSP_CARRIER(10.7), MSP_CARRIER(10.7), | |
87 | 0x00d0, 0x0480, 0x0020, 0x3000 | |
88 | },{ /* Terrestial FM-mono + FM-stereo */ | |
89 | {3, 18, 27, 48, 66, 72}, | |
90 | {3, 18, 27, 48, 66, 72}, | |
91 | MSP_CARRIER(5.5), MSP_CARRIER(5.5), | |
92 | 0x00d0, 0x0480, 0x0030, 0x3000 | |
93 | },{ /* Sat FM-mono */ | |
94 | { 1, 9, 14, 24, 33, 37}, | |
95 | { 3, 18, 27, 48, 66, 72}, | |
96 | MSP_CARRIER(6.5), MSP_CARRIER(6.5), | |
97 | 0x00c6, 0x0480, 0x0000, 0x3000 | |
98 | },{ /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */ | |
99 | {-2, -8, -10, 10, 50, 86}, | |
100 | {3, 18, 27, 48, 66, 72}, | |
101 | MSP_CARRIER(5.5), MSP_CARRIER(5.5), | |
102 | 0x00d0, 0x0040, 0x0120, 0x3000 | |
103 | },{ /* NICAM/FM -- I (6.0/6.552) */ | |
104 | {2, 4, -6, -4, 40, 94}, | |
105 | {3, 18, 27, 48, 66, 72}, | |
106 | MSP_CARRIER(6.0), MSP_CARRIER(6.0), | |
107 | 0x00d0, 0x0040, 0x0120, 0x3000 | |
108 | },{ /* NICAM/AM -- L (6.5/5.85) */ | |
109 | {-2, -8, -10, 10, 50, 86}, | |
110 | {-4, -12, -9, 23, 79, 126}, | |
111 | MSP_CARRIER(6.5), MSP_CARRIER(6.5), | |
112 | 0x00c6, 0x0140, 0x0120, 0x7c03 | |
113 | }, | |
114 | }; | |
115 | ||
116 | struct msp3400c_carrier_detect { | |
117 | int cdo; | |
118 | char *name; | |
119 | }; | |
120 | ||
121 | static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = { | |
122 | /* main carrier */ | |
123 | { MSP_CARRIER(4.5), "4.5 NTSC" }, | |
124 | { MSP_CARRIER(5.5), "5.5 PAL B/G" }, | |
125 | { MSP_CARRIER(6.0), "6.0 PAL I" }, | |
126 | { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" } | |
127 | }; | |
128 | ||
129 | static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = { | |
130 | /* PAL B/G */ | |
131 | { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" }, | |
132 | { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" } | |
133 | }; | |
134 | ||
135 | static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = { | |
136 | /* PAL SAT / SECAM */ | |
137 | { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" }, | |
138 | { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" }, | |
139 | { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" }, | |
140 | { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" }, | |
141 | { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" }, | |
142 | { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" }, | |
143 | }; | |
144 | ||
145 | /* ------------------------------------------------------------------------ */ | |
146 | ||
5af0c8f6 | 147 | const char *msp_standard_std_name(int std) |
7e8b09ea HV |
148 | { |
149 | int i; | |
150 | ||
5af0c8f6 HV |
151 | for (i = 0; msp_stdlist[i].name != NULL; i++) |
152 | if (msp_stdlist[i].retval == std) | |
153 | return msp_stdlist[i].name; | |
7e8b09ea HV |
154 | return "unknown"; |
155 | } | |
156 | ||
157 | void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2) | |
158 | { | |
159 | msp_write_dem(client, 0x0093, cdo1 & 0xfff); | |
160 | msp_write_dem(client, 0x009b, cdo1 >> 12); | |
161 | msp_write_dem(client, 0x00a3, cdo2 & 0xfff); | |
162 | msp_write_dem(client, 0x00ab, cdo2 >> 12); | |
163 | msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/ | |
164 | } | |
165 | ||
166 | void msp3400c_setmode(struct i2c_client *client, int type) | |
167 | { | |
168 | struct msp_state *state = i2c_get_clientdata(client); | |
169 | int i; | |
170 | ||
171 | v4l_dbg(1, client, "setmode: %d\n", type); | |
172 | state->mode = type; | |
173 | state->audmode = V4L2_TUNER_MODE_MONO; | |
174 | state->rxsubchans = V4L2_TUNER_SUB_MONO; | |
175 | ||
176 | msp_write_dem(client, 0x00bb, msp3400c_init_data[type].ad_cv); | |
177 | ||
178 | for (i = 5; i >= 0; i--) /* fir 1 */ | |
179 | msp_write_dem(client, 0x0001, msp3400c_init_data[type].fir1[i]); | |
180 | ||
181 | msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */ | |
182 | msp_write_dem(client, 0x0005, 0x0040); | |
183 | msp_write_dem(client, 0x0005, 0x0000); | |
184 | for (i = 5; i >= 0; i--) | |
185 | msp_write_dem(client, 0x0005, msp3400c_init_data[type].fir2[i]); | |
186 | ||
187 | msp_write_dem(client, 0x0083, msp3400c_init_data[type].mode_reg); | |
188 | ||
189 | msp3400c_setcarrier(client, msp3400c_init_data[type].cdo1, | |
190 | msp3400c_init_data[type].cdo2); | |
191 | ||
192 | msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/ | |
193 | ||
194 | if (dolby) { | |
195 | msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */ | |
196 | msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */ | |
197 | msp_write_dsp(client, 0x000b, msp3400c_init_data[type].dsp_src); | |
198 | } else { | |
199 | msp_write_dsp(client, 0x0008, msp3400c_init_data[type].dsp_src); | |
200 | msp_write_dsp(client, 0x0009, msp3400c_init_data[type].dsp_src); | |
201 | msp_write_dsp(client, 0x000b, msp3400c_init_data[type].dsp_src); | |
202 | } | |
203 | msp_write_dsp(client, 0x000a, msp3400c_init_data[type].dsp_src); | |
204 | msp_write_dsp(client, 0x000e, msp3400c_init_data[type].dsp_matrix); | |
205 | ||
7560d7a4 | 206 | if (state->has_nicam) { |
7e8b09ea HV |
207 | /* nicam prescale */ |
208 | msp_write_dsp(client, 0x0010, 0x5a00); /* was: 0x3000 */ | |
209 | } | |
210 | } | |
211 | ||
7e8b09ea HV |
212 | /* turn on/off nicam + stereo */ |
213 | void msp3400c_setstereo(struct i2c_client *client, int mode) | |
214 | { | |
d312a46e | 215 | static char *strmode[] = { "mono", "stereo", "lang2", "lang1" }; |
7e8b09ea HV |
216 | struct msp_state *state = i2c_get_clientdata(client); |
217 | int nicam = 0; /* channel source: FM/AM or nicam */ | |
218 | int src = 0; | |
219 | ||
220 | if (state->opmode == OPMODE_AUTOSELECT) { | |
221 | /* this method would break everything, let's make sure | |
222 | * it's never called | |
223 | */ | |
224 | v4l_dbg(1, client, "setstereo called with mode=%d instead of set_source (ignored)\n", | |
225 | mode); | |
226 | return; | |
227 | } | |
228 | ||
229 | /* switch demodulator */ | |
230 | switch (state->mode) { | |
231 | case MSP_MODE_FM_TERRA: | |
232 | v4l_dbg(1, client, "FM setstereo: %s\n", strmode[mode]); | |
d312a46e | 233 | msp3400c_setcarrier(client, state->second, state->main); |
7e8b09ea HV |
234 | switch (mode) { |
235 | case V4L2_TUNER_MODE_STEREO: | |
236 | msp_write_dsp(client, 0x000e, 0x3001); | |
237 | break; | |
238 | case V4L2_TUNER_MODE_MONO: | |
239 | case V4L2_TUNER_MODE_LANG1: | |
240 | case V4L2_TUNER_MODE_LANG2: | |
241 | msp_write_dsp(client, 0x000e, 0x3000); | |
242 | break; | |
243 | } | |
244 | break; | |
245 | case MSP_MODE_FM_SAT: | |
246 | v4l_dbg(1, client, "SAT setstereo: %s\n", strmode[mode]); | |
247 | switch (mode) { | |
248 | case V4L2_TUNER_MODE_MONO: | |
249 | msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5)); | |
250 | break; | |
251 | case V4L2_TUNER_MODE_STEREO: | |
252 | msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02)); | |
253 | break; | |
254 | case V4L2_TUNER_MODE_LANG1: | |
255 | msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); | |
256 | break; | |
257 | case V4L2_TUNER_MODE_LANG2: | |
258 | msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); | |
259 | break; | |
260 | } | |
261 | break; | |
262 | case MSP_MODE_FM_NICAM1: | |
263 | case MSP_MODE_FM_NICAM2: | |
264 | case MSP_MODE_AM_NICAM: | |
265 | v4l_dbg(1, client, "NICAM setstereo: %s\n",strmode[mode]); | |
266 | msp3400c_setcarrier(client,state->second,state->main); | |
267 | if (state->nicam_on) | |
268 | nicam=0x0100; | |
269 | break; | |
270 | case MSP_MODE_BTSC: | |
271 | v4l_dbg(1, client, "BTSC setstereo: %s\n",strmode[mode]); | |
272 | nicam=0x0300; | |
273 | break; | |
274 | case MSP_MODE_EXTERN: | |
275 | v4l_dbg(1, client, "extern setstereo: %s\n",strmode[mode]); | |
276 | nicam = 0x0200; | |
277 | break; | |
278 | case MSP_MODE_FM_RADIO: | |
279 | v4l_dbg(1, client, "FM-Radio setstereo: %s\n",strmode[mode]); | |
280 | break; | |
281 | default: | |
282 | v4l_dbg(1, client, "mono setstereo\n"); | |
283 | return; | |
284 | } | |
285 | ||
286 | /* switch audio */ | |
d312a46e | 287 | switch (mode) { |
7e8b09ea HV |
288 | case V4L2_TUNER_MODE_STEREO: |
289 | src = 0x0020 | nicam; | |
290 | break; | |
291 | case V4L2_TUNER_MODE_MONO: | |
292 | if (state->mode == MSP_MODE_AM_NICAM) { | |
293 | v4l_dbg(1, client, "switching to AM mono\n"); | |
294 | /* AM mono decoding is handled by tuner, not MSP chip */ | |
295 | /* SCART switching control register */ | |
296 | msp_set_scart(client, SCART_MONO, 0); | |
297 | src = 0x0200; | |
298 | break; | |
299 | } | |
300 | case V4L2_TUNER_MODE_LANG1: | |
301 | src = 0x0000 | nicam; | |
302 | break; | |
303 | case V4L2_TUNER_MODE_LANG2: | |
304 | src = 0x0010 | nicam; | |
305 | break; | |
306 | } | |
307 | v4l_dbg(1, client, "setstereo final source/matrix = 0x%x\n", src); | |
308 | ||
309 | if (dolby) { | |
310 | msp_write_dsp(client, 0x0008, 0x0520); | |
311 | msp_write_dsp(client, 0x0009, 0x0620); | |
312 | msp_write_dsp(client, 0x000a, src); | |
313 | msp_write_dsp(client, 0x000b, src); | |
314 | } else { | |
315 | msp_write_dsp(client, 0x0008, src); | |
316 | msp_write_dsp(client, 0x0009, src); | |
317 | msp_write_dsp(client, 0x000a, src); | |
318 | msp_write_dsp(client, 0x000b, src); | |
d312a46e HV |
319 | msp_write_dsp(client, 0x000c, src); |
320 | if (state->has_scart23_in_scart2_out) | |
321 | msp_write_dsp(client, 0x0041, src); | |
7e8b09ea HV |
322 | } |
323 | } | |
324 | ||
325 | static void msp3400c_print_mode(struct i2c_client *client) | |
326 | { | |
327 | struct msp_state *state = i2c_get_clientdata(client); | |
328 | ||
329 | if (state->main == state->second) { | |
330 | v4l_dbg(1, client, "mono sound carrier: %d.%03d MHz\n", | |
331 | state->main / 910000, (state->main / 910) % 1000); | |
332 | } else { | |
333 | v4l_dbg(1, client, "main sound carrier: %d.%03d MHz\n", | |
334 | state->main / 910000, (state->main / 910) % 1000); | |
335 | } | |
336 | if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2) | |
337 | v4l_dbg(1, client, "NICAM/FM carrier : %d.%03d MHz\n", | |
338 | state->second / 910000, (state->second/910) % 1000); | |
339 | if (state->mode == MSP_MODE_AM_NICAM) | |
340 | v4l_dbg(1, client, "NICAM/AM carrier : %d.%03d MHz\n", | |
341 | state->second / 910000, (state->second / 910) % 1000); | |
342 | if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) { | |
343 | v4l_dbg(1, client, "FM-stereo carrier : %d.%03d MHz\n", | |
344 | state->second / 910000, (state->second / 910) % 1000); | |
345 | } | |
346 | } | |
347 | ||
348 | /* ----------------------------------------------------------------------- */ | |
349 | ||
350 | int autodetect_stereo(struct i2c_client *client) | |
351 | { | |
352 | struct msp_state *state = i2c_get_clientdata(client); | |
353 | int val; | |
354 | int rxsubchans = state->rxsubchans; | |
355 | int newnicam = state->nicam_on; | |
356 | int update = 0; | |
357 | ||
358 | switch (state->mode) { | |
359 | case MSP_MODE_FM_TERRA: | |
360 | val = msp_read_dsp(client, 0x18); | |
361 | if (val > 32767) | |
362 | val -= 65536; | |
363 | v4l_dbg(2, client, "stereo detect register: %d\n", val); | |
364 | if (val > 4096) { | |
365 | rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO; | |
366 | } else if (val < -4096) { | |
367 | rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; | |
368 | } else { | |
369 | rxsubchans = V4L2_TUNER_SUB_MONO; | |
370 | } | |
371 | newnicam = 0; | |
372 | break; | |
373 | case MSP_MODE_FM_NICAM1: | |
374 | case MSP_MODE_FM_NICAM2: | |
375 | case MSP_MODE_AM_NICAM: | |
376 | val = msp_read_dem(client, 0x23); | |
377 | v4l_dbg(2, client, "nicam sync=%d, mode=%d\n", | |
378 | val & 1, (val & 0x1e) >> 1); | |
379 | ||
380 | if (val & 1) { | |
381 | /* nicam synced */ | |
382 | switch ((val & 0x1e) >> 1) { | |
383 | case 0: | |
384 | case 8: | |
385 | rxsubchans = V4L2_TUNER_SUB_STEREO; | |
386 | break; | |
387 | case 1: | |
388 | case 9: | |
389 | rxsubchans = V4L2_TUNER_SUB_MONO | |
390 | | V4L2_TUNER_SUB_LANG1; | |
391 | break; | |
392 | case 2: | |
393 | case 10: | |
394 | rxsubchans = V4L2_TUNER_SUB_MONO | |
395 | | V4L2_TUNER_SUB_LANG1 | |
396 | | V4L2_TUNER_SUB_LANG2; | |
397 | break; | |
398 | default: | |
399 | rxsubchans = V4L2_TUNER_SUB_MONO; | |
400 | break; | |
401 | } | |
402 | newnicam = 1; | |
403 | } else { | |
404 | newnicam = 0; | |
405 | rxsubchans = V4L2_TUNER_SUB_MONO; | |
406 | } | |
407 | break; | |
408 | case MSP_MODE_BTSC: | |
409 | val = msp_read_dem(client, 0x200); | |
410 | v4l_dbg(2, client, "status=0x%x (pri=%s, sec=%s, %s%s%s)\n", | |
411 | val, | |
412 | (val & 0x0002) ? "no" : "yes", | |
413 | (val & 0x0004) ? "no" : "yes", | |
414 | (val & 0x0040) ? "stereo" : "mono", | |
415 | (val & 0x0080) ? ", nicam 2nd mono" : "", | |
416 | (val & 0x0100) ? ", bilingual/SAP" : ""); | |
417 | rxsubchans = V4L2_TUNER_SUB_MONO; | |
418 | if (val & 0x0040) rxsubchans |= V4L2_TUNER_SUB_STEREO; | |
419 | if (val & 0x0100) rxsubchans |= V4L2_TUNER_SUB_LANG1; | |
420 | break; | |
421 | } | |
422 | if (rxsubchans != state->rxsubchans) { | |
423 | update = 1; | |
424 | v4l_dbg(1, client, "watch: rxsubchans %d => %d\n", | |
425 | state->rxsubchans,rxsubchans); | |
426 | state->rxsubchans = rxsubchans; | |
427 | } | |
428 | if (newnicam != state->nicam_on) { | |
429 | update = 1; | |
430 | v4l_dbg(1, client, "watch: nicam %d => %d\n", | |
431 | state->nicam_on,newnicam); | |
432 | state->nicam_on = newnicam; | |
433 | } | |
434 | return update; | |
435 | } | |
436 | ||
437 | /* | |
438 | * A kernel thread for msp3400 control -- we don't want to block the | |
439 | * in the ioctl while doing the sound carrier & stereo detect | |
440 | */ | |
441 | /* stereo/multilang monitoring */ | |
442 | static void watch_stereo(struct i2c_client *client) | |
443 | { | |
444 | struct msp_state *state = i2c_get_clientdata(client); | |
445 | ||
446 | if (autodetect_stereo(client)) { | |
d312a46e | 447 | if (state->rxsubchans & V4L2_TUNER_SUB_STEREO) |
7e8b09ea | 448 | msp3400c_setstereo(client, V4L2_TUNER_MODE_STEREO); |
d312a46e | 449 | else if (state->rxsubchans & V4L2_TUNER_SUB_LANG1) |
7e8b09ea HV |
450 | msp3400c_setstereo(client, V4L2_TUNER_MODE_LANG1); |
451 | else | |
452 | msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); | |
453 | } | |
454 | ||
455 | if (once) | |
456 | state->watch_stereo = 0; | |
457 | } | |
458 | ||
459 | int msp3400c_thread(void *data) | |
460 | { | |
461 | struct i2c_client *client = data; | |
462 | struct msp_state *state = i2c_get_clientdata(client); | |
463 | struct msp3400c_carrier_detect *cd; | |
464 | int count, max1,max2,val1,val2, val,this; | |
465 | ||
466 | ||
467 | v4l_dbg(1, client, "msp3400 daemon started\n"); | |
468 | for (;;) { | |
469 | v4l_dbg(2, client, "msp3400 thread: sleep\n"); | |
470 | msp_sleep(state, -1); | |
471 | v4l_dbg(2, client, "msp3400 thread: wakeup\n"); | |
472 | ||
473 | restart: | |
474 | v4l_dbg(1, client, "thread: restart scan\n"); | |
475 | state->restart = 0; | |
476 | if (kthread_should_stop()) | |
477 | break; | |
478 | ||
7560d7a4 | 479 | if (state->radio || MSP_MODE_EXTERN == state->mode) { |
7e8b09ea HV |
480 | /* no carrier scan, just unmute */ |
481 | v4l_dbg(1, client, "thread: no carrier scan\n"); | |
482 | msp_set_audio(client); | |
483 | continue; | |
484 | } | |
485 | ||
486 | /* mute */ | |
487 | msp_set_mute(client); | |
488 | msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ ); | |
489 | val1 = val2 = 0; | |
490 | max1 = max2 = -1; | |
491 | state->watch_stereo = 0; | |
492 | ||
493 | /* some time for the tuner to sync */ | |
494 | if (msp_sleep(state,200)) | |
495 | goto restart; | |
496 | ||
497 | /* carrier detect pass #1 -- main carrier */ | |
498 | cd = msp3400c_carrier_detect_main; | |
499 | count = ARRAY_SIZE(msp3400c_carrier_detect_main); | |
500 | ||
5af0c8f6 | 501 | if (amsound && (state->v4l2_std & V4L2_STD_SECAM)) { |
7e8b09ea HV |
502 | /* autodetect doesn't work well with AM ... */ |
503 | max1 = 3; | |
504 | count = 0; | |
505 | v4l_dbg(1, client, "AM sound override\n"); | |
506 | } | |
507 | ||
508 | for (this = 0; this < count; this++) { | |
509 | msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo); | |
510 | if (msp_sleep(state,100)) | |
511 | goto restart; | |
512 | val = msp_read_dsp(client, 0x1b); | |
513 | if (val > 32767) | |
514 | val -= 65536; | |
515 | if (val1 < val) | |
516 | val1 = val, max1 = this; | |
517 | v4l_dbg(1, client, "carrier1 val: %5d / %s\n", val,cd[this].name); | |
518 | } | |
519 | ||
520 | /* carrier detect pass #2 -- second (stereo) carrier */ | |
521 | switch (max1) { | |
522 | case 1: /* 5.5 */ | |
523 | cd = msp3400c_carrier_detect_55; | |
524 | count = ARRAY_SIZE(msp3400c_carrier_detect_55); | |
525 | break; | |
526 | case 3: /* 6.5 */ | |
527 | cd = msp3400c_carrier_detect_65; | |
528 | count = ARRAY_SIZE(msp3400c_carrier_detect_65); | |
529 | break; | |
530 | case 0: /* 4.5 */ | |
531 | case 2: /* 6.0 */ | |
532 | default: | |
533 | cd = NULL; | |
534 | count = 0; | |
535 | break; | |
536 | } | |
537 | ||
5af0c8f6 | 538 | if (amsound && (state->v4l2_std & V4L2_STD_SECAM)) { |
7e8b09ea HV |
539 | /* autodetect doesn't work well with AM ... */ |
540 | cd = NULL; | |
541 | count = 0; | |
542 | max2 = 0; | |
543 | } | |
544 | for (this = 0; this < count; this++) { | |
545 | msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo); | |
546 | if (msp_sleep(state,100)) | |
547 | goto restart; | |
548 | val = msp_read_dsp(client, 0x1b); | |
549 | if (val > 32767) | |
550 | val -= 65536; | |
551 | if (val2 < val) | |
552 | val2 = val, max2 = this; | |
553 | v4l_dbg(1, client, "carrier2 val: %5d / %s\n", val,cd[this].name); | |
554 | } | |
555 | ||
556 | /* program the msp3400 according to the results */ | |
557 | state->main = msp3400c_carrier_detect_main[max1].cdo; | |
558 | switch (max1) { | |
559 | case 1: /* 5.5 */ | |
560 | if (max2 == 0) { | |
561 | /* B/G FM-stereo */ | |
562 | state->second = msp3400c_carrier_detect_55[max2].cdo; | |
563 | msp3400c_setmode(client, MSP_MODE_FM_TERRA); | |
564 | state->nicam_on = 0; | |
565 | msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); | |
566 | state->watch_stereo = 1; | |
7560d7a4 | 567 | } else if (max2 == 1 && state->has_nicam) { |
7e8b09ea HV |
568 | /* B/G NICAM */ |
569 | state->second = msp3400c_carrier_detect_55[max2].cdo; | |
570 | msp3400c_setmode(client, MSP_MODE_FM_NICAM1); | |
571 | state->nicam_on = 1; | |
572 | msp3400c_setcarrier(client, state->second, state->main); | |
573 | state->watch_stereo = 1; | |
574 | } else { | |
575 | goto no_second; | |
576 | } | |
577 | break; | |
578 | case 2: /* 6.0 */ | |
579 | /* PAL I NICAM */ | |
580 | state->second = MSP_CARRIER(6.552); | |
581 | msp3400c_setmode(client, MSP_MODE_FM_NICAM2); | |
582 | state->nicam_on = 1; | |
583 | msp3400c_setcarrier(client, state->second, state->main); | |
584 | state->watch_stereo = 1; | |
585 | break; | |
586 | case 3: /* 6.5 */ | |
587 | if (max2 == 1 || max2 == 2) { | |
588 | /* D/K FM-stereo */ | |
589 | state->second = msp3400c_carrier_detect_65[max2].cdo; | |
590 | msp3400c_setmode(client, MSP_MODE_FM_TERRA); | |
591 | state->nicam_on = 0; | |
592 | msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); | |
593 | state->watch_stereo = 1; | |
5af0c8f6 | 594 | } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) { |
7e8b09ea HV |
595 | /* L NICAM or AM-mono */ |
596 | state->second = msp3400c_carrier_detect_65[max2].cdo; | |
597 | msp3400c_setmode(client, MSP_MODE_AM_NICAM); | |
598 | state->nicam_on = 0; | |
599 | msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); | |
600 | msp3400c_setcarrier(client, state->second, state->main); | |
601 | /* volume prescale for SCART (AM mono input) */ | |
602 | msp_write_dsp(client, 0x000d, 0x1900); | |
603 | state->watch_stereo = 1; | |
7560d7a4 | 604 | } else if (max2 == 0 && state->has_nicam) { |
7e8b09ea HV |
605 | /* D/K NICAM */ |
606 | state->second = msp3400c_carrier_detect_65[max2].cdo; | |
607 | msp3400c_setmode(client, MSP_MODE_FM_NICAM1); | |
608 | state->nicam_on = 1; | |
609 | msp3400c_setcarrier(client, state->second, state->main); | |
610 | state->watch_stereo = 1; | |
611 | } else { | |
612 | goto no_second; | |
613 | } | |
614 | break; | |
615 | case 0: /* 4.5 */ | |
616 | default: | |
617 | no_second: | |
618 | state->second = msp3400c_carrier_detect_main[max1].cdo; | |
619 | msp3400c_setmode(client, MSP_MODE_FM_TERRA); | |
620 | state->nicam_on = 0; | |
621 | msp3400c_setcarrier(client, state->second, state->main); | |
622 | state->rxsubchans = V4L2_TUNER_SUB_MONO; | |
623 | msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); | |
624 | break; | |
625 | } | |
626 | ||
627 | /* unmute */ | |
628 | msp_set_audio(client); | |
629 | ||
630 | if (debug) | |
631 | msp3400c_print_mode(client); | |
632 | ||
633 | /* monitor tv audio mode */ | |
634 | while (state->watch_stereo) { | |
635 | if (msp_sleep(state,5000)) | |
636 | goto restart; | |
637 | watch_stereo(client); | |
638 | } | |
639 | } | |
640 | v4l_dbg(1, client, "thread: exit\n"); | |
641 | return 0; | |
642 | } | |
643 | ||
644 | ||
645 | int msp3410d_thread(void *data) | |
646 | { | |
647 | struct i2c_client *client = data; | |
648 | struct msp_state *state = i2c_get_clientdata(client); | |
d312a46e | 649 | int val, i, std; |
7e8b09ea HV |
650 | |
651 | v4l_dbg(1, client, "msp3410 daemon started\n"); | |
652 | ||
653 | for (;;) { | |
654 | v4l_dbg(2, client, "msp3410 thread: sleep\n"); | |
655 | msp_sleep(state,-1); | |
656 | v4l_dbg(2, client, "msp3410 thread: wakeup\n"); | |
657 | ||
658 | restart: | |
659 | v4l_dbg(1, client, "thread: restart scan\n"); | |
660 | state->restart = 0; | |
661 | if (kthread_should_stop()) | |
662 | break; | |
663 | ||
664 | if (state->mode == MSP_MODE_EXTERN) { | |
665 | /* no carrier scan needed, just unmute */ | |
666 | v4l_dbg(1, client, "thread: no carrier scan\n"); | |
667 | msp_set_audio(client); | |
668 | continue; | |
669 | } | |
670 | ||
671 | /* put into sane state (and mute) */ | |
672 | msp_reset(client); | |
673 | ||
674 | /* some time for the tuner to sync */ | |
675 | if (msp_sleep(state,200)) | |
676 | goto restart; | |
677 | ||
678 | /* start autodetect */ | |
5af0c8f6 HV |
679 | if (state->radio) |
680 | std = 0x40; | |
d312a46e | 681 | else |
5af0c8f6 | 682 | std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1; |
7e8b09ea HV |
683 | state->watch_stereo = 0; |
684 | ||
685 | if (debug) | |
5af0c8f6 HV |
686 | v4l_dbg(1, client, "setting standard: %s (0x%04x)\n", |
687 | msp_standard_std_name(std), std); | |
7e8b09ea HV |
688 | |
689 | if (std != 1) { | |
690 | /* programmed some specific mode */ | |
691 | val = std; | |
692 | } else { | |
693 | /* triggered autodetect */ | |
5af0c8f6 | 694 | msp_write_dem(client, 0x20, std); |
7e8b09ea | 695 | for (;;) { |
d312a46e | 696 | if (msp_sleep(state, 100)) |
7e8b09ea HV |
697 | goto restart; |
698 | ||
699 | /* check results */ | |
700 | val = msp_read_dem(client, 0x7e); | |
701 | if (val < 0x07ff) | |
702 | break; | |
703 | v4l_dbg(1, client, "detection still in progress\n"); | |
704 | } | |
705 | } | |
5af0c8f6 HV |
706 | for (i = 0; msp_stdlist[i].name != NULL; i++) |
707 | if (msp_stdlist[i].retval == val) | |
7e8b09ea | 708 | break; |
5af0c8f6 HV |
709 | v4l_dbg(1, client, "current standard: %s (0x%04x)\n", |
710 | msp_standard_std_name(val), val); | |
711 | state->main = msp_stdlist[i].main; | |
712 | state->second = msp_stdlist[i].second; | |
713 | state->std = val; | |
714 | ||
715 | if (amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) && | |
716 | (val != 0x0009)) { | |
7e8b09ea HV |
717 | /* autodetection has failed, let backup */ |
718 | v4l_dbg(1, client, "autodetection failed," | |
5af0c8f6 HV |
719 | " switching to backup standard: %s (0x%04x)\n", |
720 | msp_stdlist[8].name ? msp_stdlist[8].name : "unknown",val); | |
7e8b09ea HV |
721 | val = 0x0009; |
722 | msp_write_dem(client, 0x20, val); | |
723 | } | |
724 | ||
725 | /* set various prescales */ | |
726 | msp_write_dsp(client, 0x0d, 0x1900); /* scart */ | |
727 | msp_write_dsp(client, 0x0e, 0x2403); /* FM */ | |
728 | msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ | |
729 | ||
730 | /* set stereo */ | |
731 | switch (val) { | |
732 | case 0x0008: /* B/G NICAM */ | |
733 | case 0x000a: /* I NICAM */ | |
734 | if (val == 0x0008) | |
735 | state->mode = MSP_MODE_FM_NICAM1; | |
736 | else | |
737 | state->mode = MSP_MODE_FM_NICAM2; | |
738 | /* just turn on stereo */ | |
739 | state->rxsubchans = V4L2_TUNER_SUB_STEREO; | |
740 | state->nicam_on = 1; | |
741 | state->watch_stereo = 1; | |
742 | msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO); | |
743 | break; | |
744 | case 0x0009: | |
745 | state->mode = MSP_MODE_AM_NICAM; | |
746 | state->rxsubchans = V4L2_TUNER_SUB_MONO; | |
747 | state->nicam_on = 1; | |
748 | msp3400c_setstereo(client,V4L2_TUNER_MODE_MONO); | |
749 | state->watch_stereo = 1; | |
750 | break; | |
751 | case 0x0020: /* BTSC */ | |
752 | /* just turn on stereo */ | |
753 | state->mode = MSP_MODE_BTSC; | |
754 | state->rxsubchans = V4L2_TUNER_SUB_STEREO; | |
755 | state->nicam_on = 0; | |
756 | state->watch_stereo = 1; | |
757 | msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO); | |
758 | break; | |
759 | case 0x0040: /* FM radio */ | |
7560d7a4 | 760 | state->mode = MSP_MODE_FM_RADIO; |
7e8b09ea HV |
761 | state->rxsubchans = V4L2_TUNER_SUB_STEREO; |
762 | state->audmode = V4L2_TUNER_MODE_STEREO; | |
763 | state->nicam_on = 0; | |
764 | state->watch_stereo = 0; | |
7560d7a4 | 765 | /* not needed in theory if we have radio, but |
7e8b09ea | 766 | short programming enables carrier mute */ |
5af0c8f6 | 767 | msp3400c_setmode(client, MSP_MODE_FM_RADIO); |
7e8b09ea HV |
768 | msp3400c_setcarrier(client, MSP_CARRIER(10.7), |
769 | MSP_CARRIER(10.7)); | |
770 | /* scart routing */ | |
771 | msp_set_scart(client,SCART_IN2,0); | |
772 | /* msp34xx does radio decoding */ | |
773 | msp_write_dsp(client, 0x08, 0x0020); | |
774 | msp_write_dsp(client, 0x09, 0x0020); | |
775 | msp_write_dsp(client, 0x0b, 0x0020); | |
776 | break; | |
777 | case 0x0003: | |
778 | case 0x0004: | |
779 | case 0x0005: | |
5af0c8f6 | 780 | state->mode = MSP_MODE_FM_TERRA; |
7e8b09ea HV |
781 | state->rxsubchans = V4L2_TUNER_SUB_MONO; |
782 | state->audmode = V4L2_TUNER_MODE_MONO; | |
783 | state->nicam_on = 0; | |
784 | state->watch_stereo = 1; | |
785 | break; | |
786 | } | |
787 | ||
788 | /* unmute, restore misc registers */ | |
789 | msp_set_audio(client); | |
790 | msp_write_dsp(client, 0x13, state->acb); | |
5af0c8f6 HV |
791 | if (state->has_i2s_conf) |
792 | msp_write_dem(client, 0x40, state->i2s_mode); | |
7e8b09ea HV |
793 | |
794 | /* monitor tv audio mode */ | |
795 | while (state->watch_stereo) { | |
796 | if (msp_sleep(state,5000)) | |
797 | goto restart; | |
798 | watch_stereo(client); | |
799 | } | |
800 | } | |
801 | v4l_dbg(1, client, "thread: exit\n"); | |
802 | return 0; | |
803 | } | |
804 | ||
805 | /* ----------------------------------------------------------------------- */ | |
806 | ||
807 | /* msp34xxG + (autoselect no-thread) */ | |
808 | /* this one uses both automatic standard detection and automatic sound */ | |
809 | /* select which are available in the newer G versions */ | |
810 | /* struct msp: only norm, acb and source are really used in this mode */ | |
811 | ||
812 | /* set the same 'source' for the loudspeaker, scart and quasi-peak detector | |
813 | * the value for source is the same as bit 15:8 of DSP registers 0x08, | |
814 | * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B | |
815 | * | |
816 | * this function replaces msp3400c_setstereo | |
817 | */ | |
818 | static void msp34xxg_set_source(struct i2c_client *client, int source) | |
819 | { | |
820 | struct msp_state *state = i2c_get_clientdata(client); | |
821 | ||
822 | /* fix matrix mode to stereo and let the msp choose what | |
823 | * to output according to 'source', as recommended | |
824 | * for MONO (source==0) downmixing set bit[7:0] to 0x30 | |
825 | */ | |
826 | int value = (source & 0x07) << 8 | (source == 0 ? 0x30 : 0x20); | |
827 | ||
828 | v4l_dbg(1, client, "set source to %d (0x%x)\n", source, value); | |
829 | /* Loudspeaker Output */ | |
830 | msp_write_dsp(client, 0x08, value); | |
831 | /* SCART1 DA Output */ | |
832 | msp_write_dsp(client, 0x0a, value); | |
833 | /* Quasi-peak detector */ | |
834 | msp_write_dsp(client, 0x0c, value); | |
835 | /* | |
836 | * set identification threshold. Personally, I | |
837 | * I set it to a higher value that the default | |
838 | * of 0x190 to ignore noisy stereo signals. | |
839 | * this needs tuning. (recommended range 0x00a0-0x03c0) | |
840 | * 0x7f0 = forced mono mode | |
841 | */ | |
842 | /* a2 threshold for stereo/bilingual */ | |
843 | msp_write_dem(client, 0x22, stereo_threshold); | |
844 | state->source = source; | |
845 | } | |
846 | ||
847 | /* (re-)initialize the msp34xxg, according to the current norm in state->norm | |
848 | * return 0 if it worked, -1 if it failed | |
849 | */ | |
850 | static int msp34xxg_reset(struct i2c_client *client) | |
851 | { | |
852 | struct msp_state *state = i2c_get_clientdata(client); | |
853 | int modus, std; | |
854 | ||
855 | if (msp_reset(client)) | |
856 | return -1; | |
857 | ||
858 | /* make sure that input/output is muted (paranoid mode) */ | |
859 | /* ACB, mute DSP input, mute SCART 1 */ | |
860 | if (msp_write_dsp(client, 0x13, 0x0f20)) | |
861 | return -1; | |
862 | ||
5af0c8f6 HV |
863 | if (state->has_i2s_conf) |
864 | msp_write_dem(client, 0x40, state->i2s_mode); | |
7e8b09ea HV |
865 | |
866 | /* step-by-step initialisation, as described in the manual */ | |
7560d7a4 HV |
867 | modus = msp_modus(client); |
868 | if (state->radio) | |
869 | std = 0x40; | |
870 | else | |
5af0c8f6 | 871 | std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1; |
7e8b09ea HV |
872 | modus &= ~0x03; /* STATUS_CHANGE = 0 */ |
873 | modus |= 0x01; /* AUTOMATIC_SOUND_DETECTION = 1 */ | |
874 | if (msp_write_dem(client, 0x30, modus)) | |
875 | return -1; | |
876 | if (msp_write_dem(client, 0x20, std)) | |
877 | return -1; | |
878 | ||
879 | /* write the dsps that may have an influence on | |
880 | standard/audio autodetection right now */ | |
881 | msp34xxg_set_source(client, state->source); | |
882 | ||
883 | /* AM/FM Prescale [15:8] 75khz deviation */ | |
884 | if (msp_write_dsp(client, 0x0e, 0x3000)) | |
885 | return -1; | |
886 | ||
887 | /* NICAM Prescale 9db gain (as recommended) */ | |
888 | if (msp_write_dsp(client, 0x10, 0x5a00)) | |
889 | return -1; | |
890 | ||
891 | return 0; | |
892 | } | |
893 | ||
894 | int msp34xxg_thread(void *data) | |
895 | { | |
896 | struct i2c_client *client = data; | |
897 | struct msp_state *state = i2c_get_clientdata(client); | |
898 | int val, std, i; | |
899 | ||
900 | v4l_dbg(1, client, "msp34xxg daemon started\n"); | |
901 | ||
902 | state->source = 1; /* default */ | |
903 | for (;;) { | |
904 | v4l_dbg(2, client, "msp34xxg thread: sleep\n"); | |
905 | msp_sleep(state, -1); | |
906 | v4l_dbg(2, client, "msp34xxg thread: wakeup\n"); | |
907 | ||
908 | restart: | |
909 | v4l_dbg(1, client, "thread: restart scan\n"); | |
910 | state->restart = 0; | |
911 | if (kthread_should_stop()) | |
912 | break; | |
913 | ||
914 | /* setup the chip*/ | |
915 | msp34xxg_reset(client); | |
916 | std = standard; | |
917 | if (std != 0x01) | |
918 | goto unmute; | |
919 | ||
920 | /* watch autodetect */ | |
921 | v4l_dbg(1, client, "triggered autodetect, waiting for result\n"); | |
922 | for (i = 0; i < 10; i++) { | |
923 | if (msp_sleep(state, 100)) | |
924 | goto restart; | |
925 | ||
926 | /* check results */ | |
927 | val = msp_read_dem(client, 0x7e); | |
928 | if (val < 0x07ff) { | |
929 | std = val; | |
930 | break; | |
931 | } | |
932 | v4l_dbg(2, client, "detection still in progress\n"); | |
933 | } | |
934 | if (std == 1) { | |
935 | v4l_dbg(1, client, "detection still in progress after 10 tries. giving up.\n"); | |
936 | continue; | |
937 | } | |
938 | ||
939 | unmute: | |
5af0c8f6 HV |
940 | state->std = std; |
941 | v4l_dbg(1, client, "current standard: %s (0x%04x)\n", | |
942 | msp_standard_std_name(std), std); | |
7e8b09ea HV |
943 | |
944 | /* unmute: dispatch sound to scart output, set scart volume */ | |
945 | msp_set_audio(client); | |
946 | ||
947 | /* restore ACB */ | |
948 | if (msp_write_dsp(client, 0x13, state->acb)) | |
949 | return -1; | |
950 | ||
951 | msp_write_dem(client, 0x40, state->i2s_mode); | |
952 | } | |
953 | v4l_dbg(1, client, "thread: exit\n"); | |
954 | return 0; | |
955 | } | |
956 | ||
957 | void msp34xxg_detect_stereo(struct i2c_client *client) | |
958 | { | |
959 | struct msp_state *state = i2c_get_clientdata(client); | |
960 | ||
961 | int status = msp_read_dem(client, 0x0200); | |
962 | int is_bilingual = status & 0x100; | |
963 | int is_stereo = status & 0x40; | |
964 | ||
965 | state->rxsubchans = 0; | |
966 | if (is_stereo) | |
967 | state->rxsubchans |= V4L2_TUNER_SUB_STEREO; | |
968 | else | |
969 | state->rxsubchans |= V4L2_TUNER_SUB_MONO; | |
970 | if (is_bilingual) { | |
971 | state->rxsubchans |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; | |
972 | /* I'm supposed to check whether it's SAP or not | |
973 | * and set only LANG2/SAP in this case. Yet, the MSP | |
974 | * does a lot of work to hide this and handle everything | |
975 | * the same way. I don't want to work around it so unless | |
976 | * this is a problem, I'll handle SAP just like lang1/lang2. | |
977 | */ | |
978 | } | |
979 | v4l_dbg(1, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n", | |
980 | status, is_stereo, is_bilingual, state->rxsubchans); | |
981 | } | |
982 | ||
983 | void msp34xxg_set_audmode(struct i2c_client *client, int audmode) | |
984 | { | |
985 | struct msp_state *state = i2c_get_clientdata(client); | |
986 | int source; | |
987 | ||
988 | switch (audmode) { | |
989 | case V4L2_TUNER_MODE_MONO: | |
990 | source = 0; /* mono only */ | |
991 | break; | |
992 | case V4L2_TUNER_MODE_STEREO: | |
993 | source = 1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */ | |
994 | /* problem: that could also mean 2 (scart input) */ | |
995 | break; | |
996 | case V4L2_TUNER_MODE_LANG1: | |
997 | source = 3; /* stereo or A */ | |
998 | break; | |
999 | case V4L2_TUNER_MODE_LANG2: | |
1000 | source = 4; /* stereo or B */ | |
1001 | break; | |
1002 | default: | |
1003 | audmode = 0; | |
1004 | source = 1; | |
1005 | break; | |
1006 | } | |
1007 | state->audmode = audmode; | |
1008 | msp34xxg_set_source(client, source); | |
1009 | } | |
1010 |