1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Programming the mspx4xx sound processor family |
4 | * |
5 | * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org> |
6 | */ |
7 | |
8 | |
9 | #include <linux/kernel.h> |
10 | #include <linux/module.h> |
11 | #include <linux/i2c.h> |
12 | #include <linux/freezer.h> |
13 | #include <linux/videodev2.h> |
14 | #include <media/v4l2-common.h> |
15 | #include <media/drv-intf/msp3400.h> |
16 | #include <linux/kthread.h> |
17 | #include <linux/suspend.h> |
18 | #include "msp3400-driver.h" |
19 | |
20 | /* this one uses the automatic sound standard detection of newer msp34xx |
21 | chip versions */ |
22 | static struct { |
23 | int retval; |
24 | int main, second; |
25 | char *name; |
26 | v4l2_std_id std; |
27 | } msp_stdlist[] = { |
28 | { 0x0000, 0, 0, "could not detect sound standard" , V4L2_STD_ALL }, |
29 | { 0x0001, 0, 0, "autodetect start" , V4L2_STD_ALL }, |
30 | { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), |
31 | "4.5/4.72 M Dual FM-Stereo" , V4L2_STD_MN }, |
32 | { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), |
33 | "5.5/5.74 B/G Dual FM-Stereo" , V4L2_STD_BG }, |
34 | { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), |
35 | "6.5/6.25 D/K1 Dual FM-Stereo" , V4L2_STD_DK }, |
36 | { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), |
37 | "6.5/6.74 D/K2 Dual FM-Stereo" , V4L2_STD_DK }, |
38 | { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), |
39 | "6.5 D/K FM-Mono (HDEV3)" , V4L2_STD_DK }, |
40 | { 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875), |
41 | "6.5/5.74 D/K3 Dual FM-Stereo" , V4L2_STD_DK }, |
42 | { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), |
43 | "5.5/5.85 B/G NICAM FM" , V4L2_STD_BG }, |
44 | { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), |
45 | "6.5/5.85 L NICAM AM" , V4L2_STD_L }, |
46 | { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), |
47 | "6.0/6.55 I NICAM FM" , V4L2_STD_PAL_I }, |
48 | { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), |
49 | "6.5/5.85 D/K NICAM FM" , V4L2_STD_DK }, |
50 | { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), |
51 | "6.5/5.85 D/K NICAM FM (HDEV2)" , V4L2_STD_DK }, |
52 | { 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85), |
53 | "6.5/5.85 D/K NICAM FM (HDEV3)" , V4L2_STD_DK }, |
54 | { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), |
55 | "4.5 M BTSC-Stereo" , V4L2_STD_MTS }, |
56 | { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), |
57 | "4.5 M BTSC-Mono + SAP" , V4L2_STD_MTS }, |
58 | { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), |
59 | "4.5 M EIA-J Japan Stereo" , V4L2_STD_NTSC_M_JP }, |
60 | { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), |
61 | "10.7 FM-Stereo Radio" , V4L2_STD_ALL }, |
62 | { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), |
63 | "6.5 SAT-Mono" , V4L2_STD_ALL }, |
64 | { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), |
65 | "7.02/7.20 SAT-Stereo" , V4L2_STD_ALL }, |
66 | { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), |
67 | "7.2 SAT ADR" , V4L2_STD_ALL }, |
68 | { -1, 0, 0, NULL, 0 }, /* EOF */ |
69 | }; |
70 | |
71 | static struct msp3400c_init_data_dem { |
72 | int fir1[6]; |
73 | int fir2[6]; |
74 | int cdo1; |
75 | int cdo2; |
76 | int ad_cv; |
77 | int mode_reg; |
78 | int dsp_src; |
79 | int dsp_matrix; |
80 | } msp3400c_init_data[] = { |
81 | { /* AM (for carrier detect / msp3400) */ |
82 | {75, 19, 36, 35, 39, 40}, |
83 | {75, 19, 36, 35, 39, 40}, |
84 | MSP_CARRIER(5.5), MSP_CARRIER(5.5), |
85 | 0x00d0, 0x0500, 0x0020, 0x3000 |
86 | }, { /* AM (for carrier detect / msp3410) */ |
87 | {-1, -1, -8, 2, 59, 126}, |
88 | {-1, -1, -8, 2, 59, 126}, |
89 | MSP_CARRIER(5.5), MSP_CARRIER(5.5), |
90 | 0x00d0, 0x0100, 0x0020, 0x3000 |
91 | }, { /* FM Radio */ |
92 | {-8, -8, 4, 6, 78, 107}, |
93 | {-8, -8, 4, 6, 78, 107}, |
94 | MSP_CARRIER(10.7), MSP_CARRIER(10.7), |
95 | 0x00d0, 0x0480, 0x0020, 0x3000 |
96 | }, { /* Terrestrial FM-mono + FM-stereo */ |
97 | {3, 18, 27, 48, 66, 72}, |
98 | {3, 18, 27, 48, 66, 72}, |
99 | MSP_CARRIER(5.5), MSP_CARRIER(5.5), |
100 | 0x00d0, 0x0480, 0x0030, 0x3000 |
101 | }, { /* Sat FM-mono */ |
102 | { 1, 9, 14, 24, 33, 37}, |
103 | { 3, 18, 27, 48, 66, 72}, |
104 | MSP_CARRIER(6.5), MSP_CARRIER(6.5), |
105 | 0x00c6, 0x0480, 0x0000, 0x3000 |
106 | }, { /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */ |
107 | {-2, -8, -10, 10, 50, 86}, |
108 | {3, 18, 27, 48, 66, 72}, |
109 | MSP_CARRIER(5.5), MSP_CARRIER(5.5), |
110 | 0x00d0, 0x0040, 0x0120, 0x3000 |
111 | }, { /* NICAM/FM -- I (6.0/6.552) */ |
112 | {2, 4, -6, -4, 40, 94}, |
113 | {3, 18, 27, 48, 66, 72}, |
114 | MSP_CARRIER(6.0), MSP_CARRIER(6.0), |
115 | 0x00d0, 0x0040, 0x0120, 0x3000 |
116 | }, { /* NICAM/AM -- L (6.5/5.85) */ |
117 | {-2, -8, -10, 10, 50, 86}, |
118 | {-4, -12, -9, 23, 79, 126}, |
119 | MSP_CARRIER(6.5), MSP_CARRIER(6.5), |
120 | 0x00c6, 0x0140, 0x0120, 0x7c00 |
121 | }, |
122 | }; |
123 | |
124 | struct msp3400c_carrier_detect { |
125 | int cdo; |
126 | char *name; |
127 | }; |
128 | |
129 | static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = { |
130 | /* main carrier */ |
131 | { MSP_CARRIER(4.5), "4.5 NTSC" }, |
132 | { MSP_CARRIER(5.5), "5.5 PAL B/G" }, |
133 | { MSP_CARRIER(6.0), "6.0 PAL I" }, |
134 | { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" } |
135 | }; |
136 | |
137 | static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = { |
138 | /* PAL B/G */ |
139 | { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" }, |
140 | { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" } |
141 | }; |
142 | |
143 | static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = { |
144 | /* PAL SAT / SECAM */ |
145 | { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" }, |
146 | { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" }, |
147 | { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" }, |
148 | { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" }, |
149 | { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" }, |
150 | { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" }, |
151 | }; |
152 | |
153 | /* ------------------------------------------------------------------------ */ |
154 | |
155 | const char *msp_standard_std_name(int std) |
156 | { |
157 | int i; |
158 | |
159 | for (i = 0; msp_stdlist[i].name != NULL; i++) |
160 | if (msp_stdlist[i].retval == std) |
161 | return msp_stdlist[i].name; |
162 | return "unknown" ; |
163 | } |
164 | |
165 | static v4l2_std_id msp_standard_std(int std) |
166 | { |
167 | int i; |
168 | |
169 | for (i = 0; msp_stdlist[i].name != NULL; i++) |
170 | if (msp_stdlist[i].retval == std) |
171 | return msp_stdlist[i].std; |
172 | return V4L2_STD_ALL; |
173 | } |
174 | |
175 | static void msp_set_source(struct i2c_client *client, u16 src) |
176 | { |
177 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
178 | |
179 | if (msp_dolby) { |
180 | msp_write_dsp(client, addr: 0x0008, val: 0x0520); /* I2S1 */ |
181 | msp_write_dsp(client, addr: 0x0009, val: 0x0620); /* I2S2 */ |
182 | } else { |
183 | msp_write_dsp(client, addr: 0x0008, val: src); |
184 | msp_write_dsp(client, addr: 0x0009, val: src); |
185 | } |
186 | msp_write_dsp(client, addr: 0x000a, val: src); |
187 | msp_write_dsp(client, addr: 0x000b, val: src); |
188 | msp_write_dsp(client, addr: 0x000c, val: src); |
189 | if (state->has_scart2_out) |
190 | msp_write_dsp(client, addr: 0x0041, val: src); |
191 | } |
192 | |
193 | void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2) |
194 | { |
195 | msp_write_dem(client, addr: 0x0093, val: cdo1 & 0xfff); |
196 | msp_write_dem(client, addr: 0x009b, val: cdo1 >> 12); |
197 | msp_write_dem(client, addr: 0x00a3, val: cdo2 & 0xfff); |
198 | msp_write_dem(client, addr: 0x00ab, val: cdo2 >> 12); |
199 | msp_write_dem(client, addr: 0x0056, val: 0); /* LOAD_REG_1/2 */ |
200 | } |
201 | |
202 | void msp3400c_set_mode(struct i2c_client *client, int mode) |
203 | { |
204 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
205 | struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode]; |
206 | int tuner = (state->route_in >> 3) & 1; |
207 | int i; |
208 | |
209 | dev_dbg_lvl(&client->dev, 1, msp_debug, "set_mode: %d\n" , mode); |
210 | state->mode = mode; |
211 | state->rxsubchans = V4L2_TUNER_SUB_MONO; |
212 | |
213 | msp_write_dem(client, addr: 0x00bb, val: data->ad_cv | (tuner ? 0x100 : 0)); |
214 | |
215 | for (i = 5; i >= 0; i--) /* fir 1 */ |
216 | msp_write_dem(client, addr: 0x0001, val: data->fir1[i]); |
217 | |
218 | msp_write_dem(client, addr: 0x0005, val: 0x0004); /* fir 2 */ |
219 | msp_write_dem(client, addr: 0x0005, val: 0x0040); |
220 | msp_write_dem(client, addr: 0x0005, val: 0x0000); |
221 | for (i = 5; i >= 0; i--) |
222 | msp_write_dem(client, addr: 0x0005, val: data->fir2[i]); |
223 | |
224 | msp_write_dem(client, addr: 0x0083, val: data->mode_reg); |
225 | |
226 | msp3400c_set_carrier(client, cdo1: data->cdo1, cdo2: data->cdo2); |
227 | |
228 | msp_set_source(client, src: data->dsp_src); |
229 | /* set prescales */ |
230 | |
231 | /* volume prescale for SCART (AM mono input) */ |
232 | msp_write_dsp(client, addr: 0x000d, val: 0x1900); |
233 | msp_write_dsp(client, addr: 0x000e, val: data->dsp_matrix); |
234 | if (state->has_nicam) /* nicam prescale */ |
235 | msp_write_dsp(client, addr: 0x0010, val: 0x5a00); |
236 | } |
237 | |
238 | /* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP, |
239 | nor do they support stereo BTSC. */ |
240 | static void msp3400c_set_audmode(struct i2c_client *client) |
241 | { |
242 | static char *strmode[] = { |
243 | "mono" , "stereo" , "lang2" , "lang1" , "lang1+lang2" |
244 | }; |
245 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
246 | char *modestr = (state->audmode >= 0 && state->audmode < 5) ? |
247 | strmode[state->audmode] : "unknown" ; |
248 | int src = 0; /* channel source: FM/AM, nicam or SCART */ |
249 | int audmode = state->audmode; |
250 | |
251 | if (state->opmode == OPMODE_AUTOSELECT) { |
252 | /* this method would break everything, let's make sure |
253 | * it's never called |
254 | */ |
255 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
256 | "set_audmode called with mode=%d instead of set_source (ignored)\n" , |
257 | state->audmode); |
258 | return; |
259 | } |
260 | |
261 | /* Note: for the C and D revs no NTSC stereo + SAP is possible as |
262 | the hardware does not support SAP. So the rxsubchans combination |
263 | of STEREO | LANG2 does not occur. */ |
264 | |
265 | if (state->mode != MSP_MODE_EXTERN) { |
266 | /* switch to mono if only mono is available */ |
267 | if (state->rxsubchans == V4L2_TUNER_SUB_MONO) |
268 | audmode = V4L2_TUNER_MODE_MONO; |
269 | /* if bilingual */ |
270 | else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) { |
271 | /* and mono or stereo, then fallback to lang1 */ |
272 | if (audmode == V4L2_TUNER_MODE_MONO || |
273 | audmode == V4L2_TUNER_MODE_STEREO) |
274 | audmode = V4L2_TUNER_MODE_LANG1; |
275 | } |
276 | /* if stereo, and audmode is not mono, then switch to stereo */ |
277 | else if (audmode != V4L2_TUNER_MODE_MONO) |
278 | audmode = V4L2_TUNER_MODE_STEREO; |
279 | } |
280 | |
281 | /* switch demodulator */ |
282 | switch (state->mode) { |
283 | case MSP_MODE_FM_TERRA: |
284 | dev_dbg_lvl(&client->dev, 1, msp_debug, "FM set_audmode: %s\n" , modestr); |
285 | switch (audmode) { |
286 | case V4L2_TUNER_MODE_STEREO: |
287 | msp_write_dsp(client, addr: 0x000e, val: 0x3001); |
288 | break; |
289 | case V4L2_TUNER_MODE_MONO: |
290 | case V4L2_TUNER_MODE_LANG1: |
291 | case V4L2_TUNER_MODE_LANG2: |
292 | case V4L2_TUNER_MODE_LANG1_LANG2: |
293 | msp_write_dsp(client, addr: 0x000e, val: 0x3000); |
294 | break; |
295 | } |
296 | break; |
297 | case MSP_MODE_FM_SAT: |
298 | dev_dbg_lvl(&client->dev, 1, msp_debug, "SAT set_audmode: %s\n" , modestr); |
299 | switch (audmode) { |
300 | case V4L2_TUNER_MODE_MONO: |
301 | msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5)); |
302 | break; |
303 | case V4L2_TUNER_MODE_STEREO: |
304 | case V4L2_TUNER_MODE_LANG1_LANG2: |
305 | msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02)); |
306 | break; |
307 | case V4L2_TUNER_MODE_LANG1: |
308 | msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); |
309 | break; |
310 | case V4L2_TUNER_MODE_LANG2: |
311 | msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); |
312 | break; |
313 | } |
314 | break; |
315 | case MSP_MODE_FM_NICAM1: |
316 | case MSP_MODE_FM_NICAM2: |
317 | case MSP_MODE_AM_NICAM: |
318 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
319 | "NICAM set_audmode: %s\n" , modestr); |
320 | if (state->nicam_on) |
321 | src = 0x0100; /* NICAM */ |
322 | break; |
323 | case MSP_MODE_BTSC: |
324 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
325 | "BTSC set_audmode: %s\n" , modestr); |
326 | break; |
327 | case MSP_MODE_EXTERN: |
328 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
329 | "extern set_audmode: %s\n" , modestr); |
330 | src = 0x0200; /* SCART */ |
331 | break; |
332 | case MSP_MODE_FM_RADIO: |
333 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
334 | "FM-Radio set_audmode: %s\n" , modestr); |
335 | break; |
336 | default: |
337 | dev_dbg_lvl(&client->dev, 1, msp_debug, "mono set_audmode\n" ); |
338 | return; |
339 | } |
340 | |
341 | /* switch audio */ |
342 | dev_dbg_lvl(&client->dev, 1, msp_debug, "set audmode %d\n" , audmode); |
343 | switch (audmode) { |
344 | case V4L2_TUNER_MODE_STEREO: |
345 | case V4L2_TUNER_MODE_LANG1_LANG2: |
346 | src |= 0x0020; |
347 | break; |
348 | case V4L2_TUNER_MODE_MONO: |
349 | if (state->mode == MSP_MODE_AM_NICAM) { |
350 | dev_dbg_lvl(&client->dev, 1, msp_debug, "switching to AM mono\n" ); |
351 | /* AM mono decoding is handled by tuner, not MSP chip */ |
352 | /* SCART switching control register */ |
353 | msp_set_scart(client, SCART_MONO, out: 0); |
354 | src = 0x0200; |
355 | break; |
356 | } |
357 | if (state->rxsubchans & V4L2_TUNER_SUB_STEREO) |
358 | src = 0x0030; |
359 | break; |
360 | case V4L2_TUNER_MODE_LANG1: |
361 | break; |
362 | case V4L2_TUNER_MODE_LANG2: |
363 | src |= 0x0010; |
364 | break; |
365 | } |
366 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
367 | "set_audmode final source/matrix = 0x%x\n" , src); |
368 | |
369 | msp_set_source(client, src); |
370 | } |
371 | |
372 | static void msp3400c_print_mode(struct i2c_client *client) |
373 | { |
374 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
375 | |
376 | if (state->main == state->second) |
377 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
378 | "mono sound carrier: %d.%03d MHz\n" , |
379 | state->main / 910000, (state->main / 910) % 1000); |
380 | else |
381 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
382 | "main sound carrier: %d.%03d MHz\n" , |
383 | state->main / 910000, (state->main / 910) % 1000); |
384 | if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2) |
385 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
386 | "NICAM/FM carrier : %d.%03d MHz\n" , |
387 | state->second / 910000, (state->second/910) % 1000); |
388 | if (state->mode == MSP_MODE_AM_NICAM) |
389 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
390 | "NICAM/AM carrier : %d.%03d MHz\n" , |
391 | state->second / 910000, (state->second / 910) % 1000); |
392 | if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) { |
393 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
394 | "FM-stereo carrier : %d.%03d MHz\n" , |
395 | state->second / 910000, (state->second / 910) % 1000); |
396 | } |
397 | } |
398 | |
399 | /* ----------------------------------------------------------------------- */ |
400 | |
401 | static int msp3400c_detect_stereo(struct i2c_client *client) |
402 | { |
403 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
404 | int val; |
405 | int rxsubchans = state->rxsubchans; |
406 | int newnicam = state->nicam_on; |
407 | int update = 0; |
408 | |
409 | switch (state->mode) { |
410 | case MSP_MODE_FM_TERRA: |
411 | val = msp_read_dsp(client, addr: 0x18); |
412 | if (val > 32767) |
413 | val -= 65536; |
414 | dev_dbg_lvl(&client->dev, 2, msp_debug, |
415 | "stereo detect register: %d\n" , val); |
416 | if (val > 8192) { |
417 | rxsubchans = V4L2_TUNER_SUB_STEREO; |
418 | } else if (val < -4096) { |
419 | rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; |
420 | } else { |
421 | rxsubchans = V4L2_TUNER_SUB_MONO; |
422 | } |
423 | newnicam = 0; |
424 | break; |
425 | case MSP_MODE_FM_NICAM1: |
426 | case MSP_MODE_FM_NICAM2: |
427 | case MSP_MODE_AM_NICAM: |
428 | val = msp_read_dem(client, addr: 0x23); |
429 | dev_dbg_lvl(&client->dev, 2, msp_debug, "nicam sync=%d, mode=%d\n" , |
430 | val & 1, (val & 0x1e) >> 1); |
431 | |
432 | if (val & 1) { |
433 | /* nicam synced */ |
434 | switch ((val & 0x1e) >> 1) { |
435 | case 0: |
436 | case 8: |
437 | rxsubchans = V4L2_TUNER_SUB_STEREO; |
438 | break; |
439 | case 1: |
440 | case 9: |
441 | rxsubchans = V4L2_TUNER_SUB_MONO; |
442 | break; |
443 | case 2: |
444 | case 10: |
445 | rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; |
446 | break; |
447 | default: |
448 | rxsubchans = V4L2_TUNER_SUB_MONO; |
449 | break; |
450 | } |
451 | newnicam = 1; |
452 | } else { |
453 | newnicam = 0; |
454 | rxsubchans = V4L2_TUNER_SUB_MONO; |
455 | } |
456 | break; |
457 | } |
458 | if (rxsubchans != state->rxsubchans) { |
459 | update = 1; |
460 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
461 | "watch: rxsubchans %02x => %02x\n" , |
462 | state->rxsubchans, rxsubchans); |
463 | state->rxsubchans = rxsubchans; |
464 | } |
465 | if (newnicam != state->nicam_on) { |
466 | update = 1; |
467 | dev_dbg_lvl(&client->dev, 1, msp_debug, "watch: nicam %d => %d\n" , |
468 | state->nicam_on, newnicam); |
469 | state->nicam_on = newnicam; |
470 | } |
471 | return update; |
472 | } |
473 | |
474 | /* |
475 | * A kernel thread for msp3400 control -- we don't want to block the |
476 | * in the ioctl while doing the sound carrier & stereo detect |
477 | */ |
478 | /* stereo/multilang monitoring */ |
479 | static void watch_stereo(struct i2c_client *client) |
480 | { |
481 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
482 | |
483 | if (msp_detect_stereo(client)) |
484 | msp_set_audmode(client); |
485 | |
486 | if (msp_once) |
487 | state->watch_stereo = 0; |
488 | } |
489 | |
490 | int msp3400c_thread(void *data) |
491 | { |
492 | struct i2c_client *client = data; |
493 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
494 | struct msp3400c_carrier_detect *cd; |
495 | int count, max1, max2, val1, val2, val, i; |
496 | |
497 | dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3400 daemon started\n" ); |
498 | state->detected_std = V4L2_STD_ALL; |
499 | set_freezable(); |
500 | for (;;) { |
501 | dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3400 thread: sleep\n" ); |
502 | msp_sleep(state, msec: -1); |
503 | dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3400 thread: wakeup\n" ); |
504 | |
505 | restart: |
506 | dev_dbg_lvl(&client->dev, 2, msp_debug, "thread: restart scan\n" ); |
507 | state->restart = 0; |
508 | if (kthread_should_stop()) |
509 | break; |
510 | |
511 | if (state->radio || MSP_MODE_EXTERN == state->mode) { |
512 | /* no carrier scan, just unmute */ |
513 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
514 | "thread: no carrier scan\n" ); |
515 | state->scan_in_progress = 0; |
516 | msp_update_volume(state); |
517 | continue; |
518 | } |
519 | |
520 | /* mute audio */ |
521 | state->scan_in_progress = 1; |
522 | msp_update_volume(state); |
523 | |
524 | msp3400c_set_mode(client, MSP_MODE_AM_DETECT); |
525 | val1 = val2 = 0; |
526 | max1 = max2 = -1; |
527 | state->watch_stereo = 0; |
528 | state->nicam_on = 0; |
529 | |
530 | /* wait for tuner to settle down after a channel change */ |
531 | if (msp_sleep(state, msec: 200)) |
532 | goto restart; |
533 | |
534 | /* carrier detect pass #1 -- main carrier */ |
535 | cd = msp3400c_carrier_detect_main; |
536 | count = ARRAY_SIZE(msp3400c_carrier_detect_main); |
537 | |
538 | if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { |
539 | /* autodetect doesn't work well with AM ... */ |
540 | max1 = 3; |
541 | count = 0; |
542 | dev_dbg_lvl(&client->dev, 1, msp_debug, "AM sound override\n" ); |
543 | } |
544 | |
545 | for (i = 0; i < count; i++) { |
546 | msp3400c_set_carrier(client, cdo1: cd[i].cdo, cdo2: cd[i].cdo); |
547 | if (msp_sleep(state, msec: 100)) |
548 | goto restart; |
549 | val = msp_read_dsp(client, addr: 0x1b); |
550 | if (val > 32767) |
551 | val -= 65536; |
552 | if (val1 < val) { |
553 | val1 = val; |
554 | max1 = i; |
555 | } |
556 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
557 | "carrier1 val: %5d / %s\n" , val, cd[i].name); |
558 | } |
559 | |
560 | /* carrier detect pass #2 -- second (stereo) carrier */ |
561 | switch (max1) { |
562 | case 1: /* 5.5 */ |
563 | cd = msp3400c_carrier_detect_55; |
564 | count = ARRAY_SIZE(msp3400c_carrier_detect_55); |
565 | break; |
566 | case 3: /* 6.5 */ |
567 | cd = msp3400c_carrier_detect_65; |
568 | count = ARRAY_SIZE(msp3400c_carrier_detect_65); |
569 | break; |
570 | case 0: /* 4.5 */ |
571 | case 2: /* 6.0 */ |
572 | default: |
573 | cd = NULL; |
574 | count = 0; |
575 | break; |
576 | } |
577 | |
578 | if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { |
579 | /* autodetect doesn't work well with AM ... */ |
580 | cd = NULL; |
581 | count = 0; |
582 | max2 = 0; |
583 | } |
584 | for (i = 0; i < count; i++) { |
585 | msp3400c_set_carrier(client, cdo1: cd[i].cdo, cdo2: cd[i].cdo); |
586 | if (msp_sleep(state, msec: 100)) |
587 | goto restart; |
588 | val = msp_read_dsp(client, addr: 0x1b); |
589 | if (val > 32767) |
590 | val -= 65536; |
591 | if (val2 < val) { |
592 | val2 = val; |
593 | max2 = i; |
594 | } |
595 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
596 | "carrier2 val: %5d / %s\n" , val, cd[i].name); |
597 | } |
598 | |
599 | /* program the msp3400 according to the results */ |
600 | state->main = msp3400c_carrier_detect_main[max1].cdo; |
601 | switch (max1) { |
602 | case 1: /* 5.5 */ |
603 | state->detected_std = V4L2_STD_BG | V4L2_STD_PAL_H; |
604 | if (max2 == 0) { |
605 | /* B/G FM-stereo */ |
606 | state->second = msp3400c_carrier_detect_55[max2].cdo; |
607 | msp3400c_set_mode(client, MSP_MODE_FM_TERRA); |
608 | state->watch_stereo = 1; |
609 | } else if (max2 == 1 && state->has_nicam) { |
610 | /* B/G NICAM */ |
611 | state->second = msp3400c_carrier_detect_55[max2].cdo; |
612 | msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); |
613 | state->nicam_on = 1; |
614 | state->watch_stereo = 1; |
615 | } else { |
616 | goto no_second; |
617 | } |
618 | break; |
619 | case 2: /* 6.0 */ |
620 | /* PAL I NICAM */ |
621 | state->detected_std = V4L2_STD_PAL_I; |
622 | state->second = MSP_CARRIER(6.552); |
623 | msp3400c_set_mode(client, MSP_MODE_FM_NICAM2); |
624 | state->nicam_on = 1; |
625 | state->watch_stereo = 1; |
626 | break; |
627 | case 3: /* 6.5 */ |
628 | if (max2 == 1 || max2 == 2) { |
629 | /* D/K FM-stereo */ |
630 | state->second = msp3400c_carrier_detect_65[max2].cdo; |
631 | msp3400c_set_mode(client, MSP_MODE_FM_TERRA); |
632 | state->watch_stereo = 1; |
633 | state->detected_std = V4L2_STD_DK; |
634 | } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) { |
635 | /* L NICAM or AM-mono */ |
636 | state->second = msp3400c_carrier_detect_65[max2].cdo; |
637 | msp3400c_set_mode(client, MSP_MODE_AM_NICAM); |
638 | state->watch_stereo = 1; |
639 | state->detected_std = V4L2_STD_L; |
640 | } else if (max2 == 0 && state->has_nicam) { |
641 | /* D/K NICAM */ |
642 | state->second = msp3400c_carrier_detect_65[max2].cdo; |
643 | msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); |
644 | state->nicam_on = 1; |
645 | state->watch_stereo = 1; |
646 | state->detected_std = V4L2_STD_DK; |
647 | } else { |
648 | goto no_second; |
649 | } |
650 | break; |
651 | case 0: /* 4.5 */ |
652 | state->detected_std = V4L2_STD_MN; |
653 | fallthrough; |
654 | default: |
655 | no_second: |
656 | state->second = msp3400c_carrier_detect_main[max1].cdo; |
657 | msp3400c_set_mode(client, MSP_MODE_FM_TERRA); |
658 | break; |
659 | } |
660 | msp3400c_set_carrier(client, cdo1: state->second, cdo2: state->main); |
661 | |
662 | /* unmute */ |
663 | state->scan_in_progress = 0; |
664 | msp3400c_set_audmode(client); |
665 | msp_update_volume(state); |
666 | |
667 | if (msp_debug) |
668 | msp3400c_print_mode(client); |
669 | |
670 | /* monitor tv audio mode, the first time don't wait |
671 | so long to get a quick stereo/bilingual result */ |
672 | count = 3; |
673 | while (state->watch_stereo) { |
674 | if (msp_sleep(state, msec: count ? 1000 : 5000)) |
675 | goto restart; |
676 | if (count) |
677 | count--; |
678 | watch_stereo(client); |
679 | } |
680 | } |
681 | dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: exit\n" ); |
682 | return 0; |
683 | } |
684 | |
685 | |
686 | int msp3410d_thread(void *data) |
687 | { |
688 | struct i2c_client *client = data; |
689 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
690 | int val, i, std, count; |
691 | |
692 | dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3410 daemon started\n" ); |
693 | state->detected_std = V4L2_STD_ALL; |
694 | set_freezable(); |
695 | for (;;) { |
696 | dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3410 thread: sleep\n" ); |
697 | msp_sleep(state, msec: -1); |
698 | dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3410 thread: wakeup\n" ); |
699 | |
700 | restart: |
701 | dev_dbg_lvl(&client->dev, 2, msp_debug, "thread: restart scan\n" ); |
702 | state->restart = 0; |
703 | if (kthread_should_stop()) |
704 | break; |
705 | |
706 | if (state->mode == MSP_MODE_EXTERN) { |
707 | /* no carrier scan needed, just unmute */ |
708 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
709 | "thread: no carrier scan\n" ); |
710 | state->scan_in_progress = 0; |
711 | msp_update_volume(state); |
712 | continue; |
713 | } |
714 | |
715 | /* mute audio */ |
716 | state->scan_in_progress = 1; |
717 | msp_update_volume(state); |
718 | |
719 | /* start autodetect. Note: autodetect is not supported for |
720 | NTSC-M and radio, hence we force the standard in those |
721 | cases. */ |
722 | if (state->radio) |
723 | std = 0x40; |
724 | else |
725 | std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1; |
726 | state->watch_stereo = 0; |
727 | state->nicam_on = 0; |
728 | |
729 | /* wait for tuner to settle down after a channel change */ |
730 | if (msp_sleep(state, msec: 200)) |
731 | goto restart; |
732 | |
733 | if (msp_debug) |
734 | dev_dbg_lvl(&client->dev, 2, msp_debug, |
735 | "setting standard: %s (0x%04x)\n" , |
736 | msp_standard_std_name(std), std); |
737 | |
738 | if (std != 1) { |
739 | /* programmed some specific mode */ |
740 | val = std; |
741 | } else { |
742 | /* triggered autodetect */ |
743 | msp_write_dem(client, addr: 0x20, val: std); |
744 | for (;;) { |
745 | if (msp_sleep(state, msec: 100)) |
746 | goto restart; |
747 | |
748 | /* check results */ |
749 | val = msp_read_dem(client, addr: 0x7e); |
750 | if (val < 0x07ff) |
751 | break; |
752 | dev_dbg_lvl(&client->dev, 2, msp_debug, |
753 | "detection still in progress\n" ); |
754 | } |
755 | } |
756 | for (i = 0; msp_stdlist[i].name != NULL; i++) |
757 | if (msp_stdlist[i].retval == val) |
758 | break; |
759 | dev_dbg_lvl(&client->dev, 1, msp_debug, "current standard: %s (0x%04x)\n" , |
760 | msp_standard_std_name(val), val); |
761 | state->main = msp_stdlist[i].main; |
762 | state->second = msp_stdlist[i].second; |
763 | state->std = val; |
764 | state->rxsubchans = V4L2_TUNER_SUB_MONO; |
765 | |
766 | if (msp_amsound && !state->radio && |
767 | (state->v4l2_std & V4L2_STD_SECAM) && (val != 0x0009)) { |
768 | /* autodetection has failed, let backup */ |
769 | dev_dbg_lvl(&client->dev, 1, msp_debug, "autodetection failed, switching to backup standard: %s (0x%04x)\n" , |
770 | msp_stdlist[8].name ? |
771 | msp_stdlist[8].name : "unknown" , val); |
772 | state->std = val = 0x0009; |
773 | msp_write_dem(client, addr: 0x20, val); |
774 | } else { |
775 | state->detected_std = msp_standard_std(std: state->std); |
776 | } |
777 | |
778 | /* set stereo */ |
779 | switch (val) { |
780 | case 0x0008: /* B/G NICAM */ |
781 | case 0x000a: /* I NICAM */ |
782 | case 0x000b: /* D/K NICAM */ |
783 | if (val == 0x000a) |
784 | state->mode = MSP_MODE_FM_NICAM2; |
785 | else |
786 | state->mode = MSP_MODE_FM_NICAM1; |
787 | /* just turn on stereo */ |
788 | state->nicam_on = 1; |
789 | state->watch_stereo = 1; |
790 | break; |
791 | case 0x0009: |
792 | state->mode = MSP_MODE_AM_NICAM; |
793 | state->nicam_on = 1; |
794 | state->watch_stereo = 1; |
795 | break; |
796 | case 0x0020: /* BTSC */ |
797 | /* The pre-'G' models only have BTSC-mono */ |
798 | state->mode = MSP_MODE_BTSC; |
799 | break; |
800 | case 0x0040: /* FM radio */ |
801 | state->mode = MSP_MODE_FM_RADIO; |
802 | state->rxsubchans = V4L2_TUNER_SUB_STEREO; |
803 | /* not needed in theory if we have radio, but |
804 | short programming enables carrier mute */ |
805 | msp3400c_set_mode(client, MSP_MODE_FM_RADIO); |
806 | msp3400c_set_carrier(client, MSP_CARRIER(10.7), |
807 | MSP_CARRIER(10.7)); |
808 | break; |
809 | case 0x0002: |
810 | case 0x0003: |
811 | case 0x0004: |
812 | case 0x0005: |
813 | state->mode = MSP_MODE_FM_TERRA; |
814 | state->watch_stereo = 1; |
815 | break; |
816 | } |
817 | |
818 | /* set various prescales */ |
819 | msp_write_dsp(client, addr: 0x0d, val: 0x1900); /* scart */ |
820 | msp_write_dsp(client, addr: 0x0e, val: 0x3000); /* FM */ |
821 | if (state->has_nicam) |
822 | msp_write_dsp(client, addr: 0x10, val: 0x5a00); /* nicam */ |
823 | |
824 | if (state->has_i2s_conf) |
825 | msp_write_dem(client, addr: 0x40, val: state->i2s_mode); |
826 | |
827 | /* unmute */ |
828 | msp3400c_set_audmode(client); |
829 | state->scan_in_progress = 0; |
830 | msp_update_volume(state); |
831 | |
832 | /* monitor tv audio mode, the first time don't wait |
833 | so long to get a quick stereo/bilingual result */ |
834 | count = 3; |
835 | while (state->watch_stereo) { |
836 | if (msp_sleep(state, msec: count ? 1000 : 5000)) |
837 | goto restart; |
838 | if (count) |
839 | count--; |
840 | watch_stereo(client); |
841 | } |
842 | } |
843 | dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: exit\n" ); |
844 | return 0; |
845 | } |
846 | |
847 | /* ----------------------------------------------------------------------- */ |
848 | |
849 | /* msp34xxG + (autoselect no-thread) |
850 | * this one uses both automatic standard detection and automatic sound |
851 | * select which are available in the newer G versions |
852 | * struct msp: only norm, acb and source are really used in this mode |
853 | */ |
854 | |
855 | static int msp34xxg_modus(struct i2c_client *client) |
856 | { |
857 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
858 | |
859 | if (state->radio) { |
860 | dev_dbg_lvl(&client->dev, 1, msp_debug, "selected radio modus\n" ); |
861 | return 0x0001; |
862 | } |
863 | if (state->v4l2_std == V4L2_STD_NTSC_M_JP) { |
864 | dev_dbg_lvl(&client->dev, 1, msp_debug, "selected M (EIA-J) modus\n" ); |
865 | return 0x4001; |
866 | } |
867 | if (state->v4l2_std == V4L2_STD_NTSC_M_KR) { |
868 | dev_dbg_lvl(&client->dev, 1, msp_debug, "selected M (A2) modus\n" ); |
869 | return 0x0001; |
870 | } |
871 | if (state->v4l2_std == V4L2_STD_SECAM_L) { |
872 | dev_dbg_lvl(&client->dev, 1, msp_debug, "selected SECAM-L modus\n" ); |
873 | return 0x6001; |
874 | } |
875 | if (state->v4l2_std & V4L2_STD_MN) { |
876 | dev_dbg_lvl(&client->dev, 1, msp_debug, "selected M (BTSC) modus\n" ); |
877 | return 0x2001; |
878 | } |
879 | return 0x7001; |
880 | } |
881 | |
882 | static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in) |
883 | { |
884 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
885 | int source, matrix; |
886 | |
887 | switch (state->audmode) { |
888 | case V4L2_TUNER_MODE_MONO: |
889 | source = 0; /* mono only */ |
890 | matrix = 0x30; |
891 | break; |
892 | case V4L2_TUNER_MODE_LANG2: |
893 | source = 4; /* stereo or B */ |
894 | matrix = 0x10; |
895 | break; |
896 | case V4L2_TUNER_MODE_LANG1_LANG2: |
897 | source = 1; /* stereo or A|B */ |
898 | matrix = 0x20; |
899 | break; |
900 | case V4L2_TUNER_MODE_LANG1: |
901 | source = 3; /* stereo or A */ |
902 | matrix = 0x00; |
903 | break; |
904 | case V4L2_TUNER_MODE_STEREO: |
905 | default: |
906 | source = 3; /* stereo or A */ |
907 | matrix = 0x20; |
908 | break; |
909 | } |
910 | |
911 | if (in == MSP_DSP_IN_TUNER) |
912 | source = (source << 8) | 0x20; |
913 | /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14 |
914 | instead of 11, 12, 13. So we add one for that msp version. */ |
915 | else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic) |
916 | source = ((in + 1) << 8) | matrix; |
917 | else |
918 | source = (in << 8) | matrix; |
919 | |
920 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
921 | "set source to %d (0x%x) for output %02x\n" , in, source, reg); |
922 | msp_write_dsp(client, addr: reg, val: source); |
923 | } |
924 | |
925 | static void msp34xxg_set_sources(struct i2c_client *client) |
926 | { |
927 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
928 | u32 in = state->route_in; |
929 | |
930 | msp34xxg_set_source(client, reg: 0x0008, in: (in >> 4) & 0xf); |
931 | /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */ |
932 | msp34xxg_set_source(client, reg: 0x000c, in: (in >> 4) & 0xf); |
933 | msp34xxg_set_source(client, reg: 0x0009, in: (in >> 8) & 0xf); |
934 | msp34xxg_set_source(client, reg: 0x000a, in: (in >> 12) & 0xf); |
935 | if (state->has_scart2_out) |
936 | msp34xxg_set_source(client, reg: 0x0041, in: (in >> 16) & 0xf); |
937 | msp34xxg_set_source(client, reg: 0x000b, in: (in >> 20) & 0xf); |
938 | } |
939 | |
940 | /* (re-)initialize the msp34xxg */ |
941 | static void msp34xxg_reset(struct i2c_client *client) |
942 | { |
943 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
944 | int tuner = (state->route_in >> 3) & 1; |
945 | int modus; |
946 | |
947 | /* initialize std to 1 (autodetect) to signal that no standard is |
948 | selected yet. */ |
949 | state->std = 1; |
950 | |
951 | msp_reset(client); |
952 | |
953 | if (state->has_i2s_conf) |
954 | msp_write_dem(client, addr: 0x40, val: state->i2s_mode); |
955 | |
956 | /* step-by-step initialisation, as described in the manual */ |
957 | modus = msp34xxg_modus(client); |
958 | modus |= tuner ? 0x100 : 0; |
959 | msp_write_dem(client, addr: 0x30, val: modus); |
960 | |
961 | /* write the dsps that may have an influence on |
962 | standard/audio autodetection right now */ |
963 | msp34xxg_set_sources(client); |
964 | |
965 | msp_write_dsp(client, addr: 0x0d, val: 0x1900); /* scart */ |
966 | msp_write_dsp(client, addr: 0x0e, val: 0x3000); /* FM */ |
967 | if (state->has_nicam) |
968 | msp_write_dsp(client, addr: 0x10, val: 0x5a00); /* nicam */ |
969 | |
970 | /* set identification threshold. Personally, I |
971 | * I set it to a higher value than the default |
972 | * of 0x190 to ignore noisy stereo signals. |
973 | * this needs tuning. (recommended range 0x00a0-0x03c0) |
974 | * 0x7f0 = forced mono mode |
975 | * |
976 | * a2 threshold for stereo/bilingual. |
977 | * Note: this register is part of the Manual/Compatibility mode. |
978 | * It is supported by all 'G'-family chips. |
979 | */ |
980 | msp_write_dem(client, addr: 0x22, val: msp_stereo_thresh); |
981 | } |
982 | |
983 | int msp34xxg_thread(void *data) |
984 | { |
985 | struct i2c_client *client = data; |
986 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
987 | int val, i; |
988 | |
989 | dev_dbg_lvl(&client->dev, 1, msp_debug, "msp34xxg daemon started\n" ); |
990 | state->detected_std = V4L2_STD_ALL; |
991 | set_freezable(); |
992 | for (;;) { |
993 | dev_dbg_lvl(&client->dev, 2, msp_debug, "msp34xxg thread: sleep\n" ); |
994 | msp_sleep(state, msec: -1); |
995 | dev_dbg_lvl(&client->dev, 2, msp_debug, "msp34xxg thread: wakeup\n" ); |
996 | |
997 | restart: |
998 | dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: restart scan\n" ); |
999 | state->restart = 0; |
1000 | if (kthread_should_stop()) |
1001 | break; |
1002 | |
1003 | if (state->mode == MSP_MODE_EXTERN) { |
1004 | /* no carrier scan needed, just unmute */ |
1005 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
1006 | "thread: no carrier scan\n" ); |
1007 | state->scan_in_progress = 0; |
1008 | msp_update_volume(state); |
1009 | continue; |
1010 | } |
1011 | |
1012 | /* setup the chip*/ |
1013 | msp34xxg_reset(client); |
1014 | state->std = state->radio ? 0x40 : |
1015 | (state->force_btsc && msp_standard == 1) ? 32 : msp_standard; |
1016 | msp_write_dem(client, addr: 0x20, val: state->std); |
1017 | /* start autodetect */ |
1018 | if (state->std != 1) |
1019 | goto unmute; |
1020 | |
1021 | /* watch autodetect */ |
1022 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
1023 | "started autodetect, waiting for result\n" ); |
1024 | for (i = 0; i < 10; i++) { |
1025 | if (msp_sleep(state, msec: 100)) |
1026 | goto restart; |
1027 | |
1028 | /* check results */ |
1029 | val = msp_read_dem(client, addr: 0x7e); |
1030 | if (val < 0x07ff) { |
1031 | state->std = val; |
1032 | break; |
1033 | } |
1034 | dev_dbg_lvl(&client->dev, 2, msp_debug, |
1035 | "detection still in progress\n" ); |
1036 | } |
1037 | if (state->std == 1) { |
1038 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
1039 | "detection still in progress after 10 tries. giving up.\n" ); |
1040 | continue; |
1041 | } |
1042 | |
1043 | unmute: |
1044 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
1045 | "detected standard: %s (0x%04x)\n" , |
1046 | msp_standard_std_name(state->std), state->std); |
1047 | state->detected_std = msp_standard_std(std: state->std); |
1048 | |
1049 | if (state->std == 9) { |
1050 | /* AM NICAM mode */ |
1051 | msp_write_dsp(client, addr: 0x0e, val: 0x7c00); |
1052 | } |
1053 | |
1054 | /* unmute: dispatch sound to scart output, set scart volume */ |
1055 | msp_update_volume(state); |
1056 | |
1057 | /* restore ACB */ |
1058 | if (msp_write_dsp(client, addr: 0x13, val: state->acb)) |
1059 | return -1; |
1060 | |
1061 | /* the periodic stereo/SAP check is only relevant for |
1062 | the 0x20 standard (BTSC) */ |
1063 | if (state->std != 0x20) |
1064 | continue; |
1065 | |
1066 | state->watch_stereo = 1; |
1067 | |
1068 | /* monitor tv audio mode, the first time don't wait |
1069 | in order to get a quick stereo/SAP update */ |
1070 | watch_stereo(client); |
1071 | while (state->watch_stereo) { |
1072 | watch_stereo(client); |
1073 | if (msp_sleep(state, msec: 5000)) |
1074 | goto restart; |
1075 | } |
1076 | } |
1077 | dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: exit\n" ); |
1078 | return 0; |
1079 | } |
1080 | |
1081 | static int msp34xxg_detect_stereo(struct i2c_client *client) |
1082 | { |
1083 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
1084 | int status = msp_read_dem(client, addr: 0x0200); |
1085 | int is_bilingual = status & 0x100; |
1086 | int is_stereo = status & 0x40; |
1087 | int oldrx = state->rxsubchans; |
1088 | |
1089 | if (state->mode == MSP_MODE_EXTERN) |
1090 | return 0; |
1091 | |
1092 | state->rxsubchans = 0; |
1093 | if (is_stereo) |
1094 | state->rxsubchans = V4L2_TUNER_SUB_STEREO; |
1095 | else |
1096 | state->rxsubchans = V4L2_TUNER_SUB_MONO; |
1097 | if (is_bilingual) { |
1098 | if (state->std == 0x20) |
1099 | state->rxsubchans |= V4L2_TUNER_SUB_SAP; |
1100 | else |
1101 | state->rxsubchans = |
1102 | V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; |
1103 | } |
1104 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
1105 | "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n" , |
1106 | status, is_stereo, is_bilingual, state->rxsubchans); |
1107 | return (oldrx != state->rxsubchans); |
1108 | } |
1109 | |
1110 | static void msp34xxg_set_audmode(struct i2c_client *client) |
1111 | { |
1112 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
1113 | |
1114 | if (state->std == 0x20) { |
1115 | if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) && |
1116 | (state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 || |
1117 | state->audmode == V4L2_TUNER_MODE_LANG2)) { |
1118 | msp_write_dem(client, addr: 0x20, val: 0x21); |
1119 | } else { |
1120 | msp_write_dem(client, addr: 0x20, val: 0x20); |
1121 | } |
1122 | } |
1123 | |
1124 | msp34xxg_set_sources(client); |
1125 | } |
1126 | |
1127 | void msp_set_audmode(struct i2c_client *client) |
1128 | { |
1129 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
1130 | |
1131 | switch (state->opmode) { |
1132 | case OPMODE_MANUAL: |
1133 | case OPMODE_AUTODETECT: |
1134 | msp3400c_set_audmode(client); |
1135 | break; |
1136 | case OPMODE_AUTOSELECT: |
1137 | msp34xxg_set_audmode(client); |
1138 | break; |
1139 | } |
1140 | } |
1141 | |
1142 | int msp_detect_stereo(struct i2c_client *client) |
1143 | { |
1144 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
1145 | |
1146 | switch (state->opmode) { |
1147 | case OPMODE_MANUAL: |
1148 | case OPMODE_AUTODETECT: |
1149 | return msp3400c_detect_stereo(client); |
1150 | case OPMODE_AUTOSELECT: |
1151 | return msp34xxg_detect_stereo(client); |
1152 | } |
1153 | return 0; |
1154 | } |
1155 | |
1156 | |