Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 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; |
| 40 | } msp_modelist[] = { |
| 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 | |
| 147 | const char *msp_standard_mode_name(int mode) |
| 148 | { |
| 149 | int i; |
| 150 | |
| 151 | for (i = 0; msp_modelist[i].name != NULL; i++) |
| 152 | if (msp_modelist[i].retval == mode) |
| 153 | return msp_modelist[i].name; |
| 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 | |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 206 | if (state->has_nicam) { |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 207 | /* nicam prescale */ |
| 208 | msp_write_dsp(client, 0x0010, 0x5a00); /* was: 0x3000 */ |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | /* given a bitmask of VIDEO_SOUND_XXX returns the "best" in the bitmask */ |
| 213 | static int msp3400c_best_video_sound(int rxsubchans) |
| 214 | { |
| 215 | if (rxsubchans & V4L2_TUNER_SUB_STEREO) |
| 216 | return V4L2_TUNER_MODE_STEREO; |
| 217 | if (rxsubchans & V4L2_TUNER_SUB_LANG1) |
| 218 | return V4L2_TUNER_MODE_LANG1; |
| 219 | if (rxsubchans & V4L2_TUNER_SUB_LANG2) |
| 220 | return V4L2_TUNER_MODE_LANG2; |
| 221 | return V4L2_TUNER_MODE_MONO; |
| 222 | } |
| 223 | |
| 224 | /* turn on/off nicam + stereo */ |
| 225 | void msp3400c_setstereo(struct i2c_client *client, int mode) |
| 226 | { |
| 227 | static char *strmode[] = { "0", "mono", "stereo", "3", |
| 228 | "lang1", "5", "6", "7", "lang2" |
| 229 | }; |
| 230 | struct msp_state *state = i2c_get_clientdata(client); |
| 231 | int nicam = 0; /* channel source: FM/AM or nicam */ |
| 232 | int src = 0; |
| 233 | |
| 234 | if (state->opmode == OPMODE_AUTOSELECT) { |
| 235 | /* this method would break everything, let's make sure |
| 236 | * it's never called |
| 237 | */ |
| 238 | v4l_dbg(1, client, "setstereo called with mode=%d instead of set_source (ignored)\n", |
| 239 | mode); |
| 240 | return; |
| 241 | } |
| 242 | |
| 243 | /* switch demodulator */ |
| 244 | switch (state->mode) { |
| 245 | case MSP_MODE_FM_TERRA: |
| 246 | v4l_dbg(1, client, "FM setstereo: %s\n", strmode[mode]); |
| 247 | msp3400c_setcarrier(client,state->second,state->main); |
| 248 | switch (mode) { |
| 249 | case V4L2_TUNER_MODE_STEREO: |
| 250 | msp_write_dsp(client, 0x000e, 0x3001); |
| 251 | break; |
| 252 | case V4L2_TUNER_MODE_MONO: |
| 253 | case V4L2_TUNER_MODE_LANG1: |
| 254 | case V4L2_TUNER_MODE_LANG2: |
| 255 | msp_write_dsp(client, 0x000e, 0x3000); |
| 256 | break; |
| 257 | } |
| 258 | break; |
| 259 | case MSP_MODE_FM_SAT: |
| 260 | v4l_dbg(1, client, "SAT setstereo: %s\n", strmode[mode]); |
| 261 | switch (mode) { |
| 262 | case V4L2_TUNER_MODE_MONO: |
| 263 | msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5)); |
| 264 | break; |
| 265 | case V4L2_TUNER_MODE_STEREO: |
| 266 | msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02)); |
| 267 | break; |
| 268 | case V4L2_TUNER_MODE_LANG1: |
| 269 | msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); |
| 270 | break; |
| 271 | case V4L2_TUNER_MODE_LANG2: |
| 272 | msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); |
| 273 | break; |
| 274 | } |
| 275 | break; |
| 276 | case MSP_MODE_FM_NICAM1: |
| 277 | case MSP_MODE_FM_NICAM2: |
| 278 | case MSP_MODE_AM_NICAM: |
| 279 | v4l_dbg(1, client, "NICAM setstereo: %s\n",strmode[mode]); |
| 280 | msp3400c_setcarrier(client,state->second,state->main); |
| 281 | if (state->nicam_on) |
| 282 | nicam=0x0100; |
| 283 | break; |
| 284 | case MSP_MODE_BTSC: |
| 285 | v4l_dbg(1, client, "BTSC setstereo: %s\n",strmode[mode]); |
| 286 | nicam=0x0300; |
| 287 | break; |
| 288 | case MSP_MODE_EXTERN: |
| 289 | v4l_dbg(1, client, "extern setstereo: %s\n",strmode[mode]); |
| 290 | nicam = 0x0200; |
| 291 | break; |
| 292 | case MSP_MODE_FM_RADIO: |
| 293 | v4l_dbg(1, client, "FM-Radio setstereo: %s\n",strmode[mode]); |
| 294 | break; |
| 295 | default: |
| 296 | v4l_dbg(1, client, "mono setstereo\n"); |
| 297 | return; |
| 298 | } |
| 299 | |
| 300 | /* switch audio */ |
| 301 | switch (msp3400c_best_video_sound(mode)) { |
| 302 | case V4L2_TUNER_MODE_STEREO: |
| 303 | src = 0x0020 | nicam; |
| 304 | break; |
| 305 | case V4L2_TUNER_MODE_MONO: |
| 306 | if (state->mode == MSP_MODE_AM_NICAM) { |
| 307 | v4l_dbg(1, client, "switching to AM mono\n"); |
| 308 | /* AM mono decoding is handled by tuner, not MSP chip */ |
| 309 | /* SCART switching control register */ |
| 310 | msp_set_scart(client, SCART_MONO, 0); |
| 311 | src = 0x0200; |
| 312 | break; |
| 313 | } |
| 314 | case V4L2_TUNER_MODE_LANG1: |
| 315 | src = 0x0000 | nicam; |
| 316 | break; |
| 317 | case V4L2_TUNER_MODE_LANG2: |
| 318 | src = 0x0010 | nicam; |
| 319 | break; |
| 320 | } |
| 321 | v4l_dbg(1, client, "setstereo final source/matrix = 0x%x\n", src); |
| 322 | |
| 323 | if (dolby) { |
| 324 | msp_write_dsp(client, 0x0008, 0x0520); |
| 325 | msp_write_dsp(client, 0x0009, 0x0620); |
| 326 | msp_write_dsp(client, 0x000a, src); |
| 327 | msp_write_dsp(client, 0x000b, src); |
| 328 | } else { |
| 329 | msp_write_dsp(client, 0x0008, src); |
| 330 | msp_write_dsp(client, 0x0009, src); |
| 331 | msp_write_dsp(client, 0x000a, src); |
| 332 | msp_write_dsp(client, 0x000b, src); |
| 333 | } |
| 334 | } |
| 335 | |
| 336 | static void msp3400c_print_mode(struct i2c_client *client) |
| 337 | { |
| 338 | struct msp_state *state = i2c_get_clientdata(client); |
| 339 | |
| 340 | if (state->main == state->second) { |
| 341 | v4l_dbg(1, client, "mono sound carrier: %d.%03d MHz\n", |
| 342 | state->main / 910000, (state->main / 910) % 1000); |
| 343 | } else { |
| 344 | v4l_dbg(1, client, "main sound carrier: %d.%03d MHz\n", |
| 345 | state->main / 910000, (state->main / 910) % 1000); |
| 346 | } |
| 347 | if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2) |
| 348 | v4l_dbg(1, client, "NICAM/FM carrier : %d.%03d MHz\n", |
| 349 | state->second / 910000, (state->second/910) % 1000); |
| 350 | if (state->mode == MSP_MODE_AM_NICAM) |
| 351 | v4l_dbg(1, client, "NICAM/AM carrier : %d.%03d MHz\n", |
| 352 | state->second / 910000, (state->second / 910) % 1000); |
| 353 | if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) { |
| 354 | v4l_dbg(1, client, "FM-stereo carrier : %d.%03d MHz\n", |
| 355 | state->second / 910000, (state->second / 910) % 1000); |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | /* ----------------------------------------------------------------------- */ |
| 360 | |
| 361 | int autodetect_stereo(struct i2c_client *client) |
| 362 | { |
| 363 | struct msp_state *state = i2c_get_clientdata(client); |
| 364 | int val; |
| 365 | int rxsubchans = state->rxsubchans; |
| 366 | int newnicam = state->nicam_on; |
| 367 | int update = 0; |
| 368 | |
| 369 | switch (state->mode) { |
| 370 | case MSP_MODE_FM_TERRA: |
| 371 | val = msp_read_dsp(client, 0x18); |
| 372 | if (val > 32767) |
| 373 | val -= 65536; |
| 374 | v4l_dbg(2, client, "stereo detect register: %d\n", val); |
| 375 | if (val > 4096) { |
| 376 | rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO; |
| 377 | } else if (val < -4096) { |
| 378 | rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; |
| 379 | } else { |
| 380 | rxsubchans = V4L2_TUNER_SUB_MONO; |
| 381 | } |
| 382 | newnicam = 0; |
| 383 | break; |
| 384 | case MSP_MODE_FM_NICAM1: |
| 385 | case MSP_MODE_FM_NICAM2: |
| 386 | case MSP_MODE_AM_NICAM: |
| 387 | val = msp_read_dem(client, 0x23); |
| 388 | v4l_dbg(2, client, "nicam sync=%d, mode=%d\n", |
| 389 | val & 1, (val & 0x1e) >> 1); |
| 390 | |
| 391 | if (val & 1) { |
| 392 | /* nicam synced */ |
| 393 | switch ((val & 0x1e) >> 1) { |
| 394 | case 0: |
| 395 | case 8: |
| 396 | rxsubchans = V4L2_TUNER_SUB_STEREO; |
| 397 | break; |
| 398 | case 1: |
| 399 | case 9: |
| 400 | rxsubchans = V4L2_TUNER_SUB_MONO |
| 401 | | V4L2_TUNER_SUB_LANG1; |
| 402 | break; |
| 403 | case 2: |
| 404 | case 10: |
| 405 | rxsubchans = V4L2_TUNER_SUB_MONO |
| 406 | | V4L2_TUNER_SUB_LANG1 |
| 407 | | V4L2_TUNER_SUB_LANG2; |
| 408 | break; |
| 409 | default: |
| 410 | rxsubchans = V4L2_TUNER_SUB_MONO; |
| 411 | break; |
| 412 | } |
| 413 | newnicam = 1; |
| 414 | } else { |
| 415 | newnicam = 0; |
| 416 | rxsubchans = V4L2_TUNER_SUB_MONO; |
| 417 | } |
| 418 | break; |
| 419 | case MSP_MODE_BTSC: |
| 420 | val = msp_read_dem(client, 0x200); |
| 421 | v4l_dbg(2, client, "status=0x%x (pri=%s, sec=%s, %s%s%s)\n", |
| 422 | val, |
| 423 | (val & 0x0002) ? "no" : "yes", |
| 424 | (val & 0x0004) ? "no" : "yes", |
| 425 | (val & 0x0040) ? "stereo" : "mono", |
| 426 | (val & 0x0080) ? ", nicam 2nd mono" : "", |
| 427 | (val & 0x0100) ? ", bilingual/SAP" : ""); |
| 428 | rxsubchans = V4L2_TUNER_SUB_MONO; |
| 429 | if (val & 0x0040) rxsubchans |= V4L2_TUNER_SUB_STEREO; |
| 430 | if (val & 0x0100) rxsubchans |= V4L2_TUNER_SUB_LANG1; |
| 431 | break; |
| 432 | } |
| 433 | if (rxsubchans != state->rxsubchans) { |
| 434 | update = 1; |
| 435 | v4l_dbg(1, client, "watch: rxsubchans %d => %d\n", |
| 436 | state->rxsubchans,rxsubchans); |
| 437 | state->rxsubchans = rxsubchans; |
| 438 | } |
| 439 | if (newnicam != state->nicam_on) { |
| 440 | update = 1; |
| 441 | v4l_dbg(1, client, "watch: nicam %d => %d\n", |
| 442 | state->nicam_on,newnicam); |
| 443 | state->nicam_on = newnicam; |
| 444 | } |
| 445 | return update; |
| 446 | } |
| 447 | |
| 448 | /* |
| 449 | * A kernel thread for msp3400 control -- we don't want to block the |
| 450 | * in the ioctl while doing the sound carrier & stereo detect |
| 451 | */ |
| 452 | /* stereo/multilang monitoring */ |
| 453 | static void watch_stereo(struct i2c_client *client) |
| 454 | { |
| 455 | struct msp_state *state = i2c_get_clientdata(client); |
| 456 | |
| 457 | if (autodetect_stereo(client)) { |
| 458 | if (state->stereo & V4L2_TUNER_MODE_STEREO) |
| 459 | msp3400c_setstereo(client, V4L2_TUNER_MODE_STEREO); |
| 460 | else if (state->stereo & VIDEO_SOUND_LANG1) |
| 461 | msp3400c_setstereo(client, V4L2_TUNER_MODE_LANG1); |
| 462 | else |
| 463 | msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); |
| 464 | } |
| 465 | |
| 466 | if (once) |
| 467 | state->watch_stereo = 0; |
| 468 | } |
| 469 | |
| 470 | int msp3400c_thread(void *data) |
| 471 | { |
| 472 | struct i2c_client *client = data; |
| 473 | struct msp_state *state = i2c_get_clientdata(client); |
| 474 | struct msp3400c_carrier_detect *cd; |
| 475 | int count, max1,max2,val1,val2, val,this; |
| 476 | |
| 477 | |
| 478 | v4l_dbg(1, client, "msp3400 daemon started\n"); |
| 479 | for (;;) { |
| 480 | v4l_dbg(2, client, "msp3400 thread: sleep\n"); |
| 481 | msp_sleep(state, -1); |
| 482 | v4l_dbg(2, client, "msp3400 thread: wakeup\n"); |
| 483 | |
| 484 | restart: |
| 485 | v4l_dbg(1, client, "thread: restart scan\n"); |
| 486 | state->restart = 0; |
| 487 | if (kthread_should_stop()) |
| 488 | break; |
| 489 | |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 490 | if (state->radio || MSP_MODE_EXTERN == state->mode) { |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 491 | /* no carrier scan, just unmute */ |
| 492 | v4l_dbg(1, client, "thread: no carrier scan\n"); |
| 493 | msp_set_audio(client); |
| 494 | continue; |
| 495 | } |
| 496 | |
| 497 | /* mute */ |
| 498 | msp_set_mute(client); |
| 499 | msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ ); |
| 500 | val1 = val2 = 0; |
| 501 | max1 = max2 = -1; |
| 502 | state->watch_stereo = 0; |
| 503 | |
| 504 | /* some time for the tuner to sync */ |
| 505 | if (msp_sleep(state,200)) |
| 506 | goto restart; |
| 507 | |
| 508 | /* carrier detect pass #1 -- main carrier */ |
| 509 | cd = msp3400c_carrier_detect_main; |
| 510 | count = ARRAY_SIZE(msp3400c_carrier_detect_main); |
| 511 | |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 512 | if (amsound && (state->std & V4L2_STD_SECAM)) { |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 513 | /* autodetect doesn't work well with AM ... */ |
| 514 | max1 = 3; |
| 515 | count = 0; |
| 516 | v4l_dbg(1, client, "AM sound override\n"); |
| 517 | } |
| 518 | |
| 519 | for (this = 0; this < count; this++) { |
| 520 | msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo); |
| 521 | if (msp_sleep(state,100)) |
| 522 | goto restart; |
| 523 | val = msp_read_dsp(client, 0x1b); |
| 524 | if (val > 32767) |
| 525 | val -= 65536; |
| 526 | if (val1 < val) |
| 527 | val1 = val, max1 = this; |
| 528 | v4l_dbg(1, client, "carrier1 val: %5d / %s\n", val,cd[this].name); |
| 529 | } |
| 530 | |
| 531 | /* carrier detect pass #2 -- second (stereo) carrier */ |
| 532 | switch (max1) { |
| 533 | case 1: /* 5.5 */ |
| 534 | cd = msp3400c_carrier_detect_55; |
| 535 | count = ARRAY_SIZE(msp3400c_carrier_detect_55); |
| 536 | break; |
| 537 | case 3: /* 6.5 */ |
| 538 | cd = msp3400c_carrier_detect_65; |
| 539 | count = ARRAY_SIZE(msp3400c_carrier_detect_65); |
| 540 | break; |
| 541 | case 0: /* 4.5 */ |
| 542 | case 2: /* 6.0 */ |
| 543 | default: |
| 544 | cd = NULL; |
| 545 | count = 0; |
| 546 | break; |
| 547 | } |
| 548 | |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 549 | if (amsound && (state->std & V4L2_STD_SECAM)) { |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 550 | /* autodetect doesn't work well with AM ... */ |
| 551 | cd = NULL; |
| 552 | count = 0; |
| 553 | max2 = 0; |
| 554 | } |
| 555 | for (this = 0; this < count; this++) { |
| 556 | msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo); |
| 557 | if (msp_sleep(state,100)) |
| 558 | goto restart; |
| 559 | val = msp_read_dsp(client, 0x1b); |
| 560 | if (val > 32767) |
| 561 | val -= 65536; |
| 562 | if (val2 < val) |
| 563 | val2 = val, max2 = this; |
| 564 | v4l_dbg(1, client, "carrier2 val: %5d / %s\n", val,cd[this].name); |
| 565 | } |
| 566 | |
| 567 | /* program the msp3400 according to the results */ |
| 568 | state->main = msp3400c_carrier_detect_main[max1].cdo; |
| 569 | switch (max1) { |
| 570 | case 1: /* 5.5 */ |
| 571 | if (max2 == 0) { |
| 572 | /* B/G FM-stereo */ |
| 573 | state->second = msp3400c_carrier_detect_55[max2].cdo; |
| 574 | msp3400c_setmode(client, MSP_MODE_FM_TERRA); |
| 575 | state->nicam_on = 0; |
| 576 | msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); |
| 577 | state->watch_stereo = 1; |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 578 | } else if (max2 == 1 && state->has_nicam) { |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 579 | /* B/G NICAM */ |
| 580 | state->second = msp3400c_carrier_detect_55[max2].cdo; |
| 581 | msp3400c_setmode(client, MSP_MODE_FM_NICAM1); |
| 582 | state->nicam_on = 1; |
| 583 | msp3400c_setcarrier(client, state->second, state->main); |
| 584 | state->watch_stereo = 1; |
| 585 | } else { |
| 586 | goto no_second; |
| 587 | } |
| 588 | break; |
| 589 | case 2: /* 6.0 */ |
| 590 | /* PAL I NICAM */ |
| 591 | state->second = MSP_CARRIER(6.552); |
| 592 | msp3400c_setmode(client, MSP_MODE_FM_NICAM2); |
| 593 | state->nicam_on = 1; |
| 594 | msp3400c_setcarrier(client, state->second, state->main); |
| 595 | state->watch_stereo = 1; |
| 596 | break; |
| 597 | case 3: /* 6.5 */ |
| 598 | if (max2 == 1 || max2 == 2) { |
| 599 | /* D/K FM-stereo */ |
| 600 | state->second = msp3400c_carrier_detect_65[max2].cdo; |
| 601 | msp3400c_setmode(client, MSP_MODE_FM_TERRA); |
| 602 | state->nicam_on = 0; |
| 603 | msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); |
| 604 | state->watch_stereo = 1; |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 605 | } else if (max2 == 0 && (state->std & V4L2_STD_SECAM)) { |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 606 | /* L NICAM or AM-mono */ |
| 607 | state->second = msp3400c_carrier_detect_65[max2].cdo; |
| 608 | msp3400c_setmode(client, MSP_MODE_AM_NICAM); |
| 609 | state->nicam_on = 0; |
| 610 | msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); |
| 611 | msp3400c_setcarrier(client, state->second, state->main); |
| 612 | /* volume prescale for SCART (AM mono input) */ |
| 613 | msp_write_dsp(client, 0x000d, 0x1900); |
| 614 | state->watch_stereo = 1; |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 615 | } else if (max2 == 0 && state->has_nicam) { |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 616 | /* D/K NICAM */ |
| 617 | state->second = msp3400c_carrier_detect_65[max2].cdo; |
| 618 | msp3400c_setmode(client, MSP_MODE_FM_NICAM1); |
| 619 | state->nicam_on = 1; |
| 620 | msp3400c_setcarrier(client, state->second, state->main); |
| 621 | state->watch_stereo = 1; |
| 622 | } else { |
| 623 | goto no_second; |
| 624 | } |
| 625 | break; |
| 626 | case 0: /* 4.5 */ |
| 627 | default: |
| 628 | no_second: |
| 629 | state->second = msp3400c_carrier_detect_main[max1].cdo; |
| 630 | msp3400c_setmode(client, MSP_MODE_FM_TERRA); |
| 631 | state->nicam_on = 0; |
| 632 | msp3400c_setcarrier(client, state->second, state->main); |
| 633 | state->rxsubchans = V4L2_TUNER_SUB_MONO; |
| 634 | msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); |
| 635 | break; |
| 636 | } |
| 637 | |
| 638 | /* unmute */ |
| 639 | msp_set_audio(client); |
| 640 | |
| 641 | if (debug) |
| 642 | msp3400c_print_mode(client); |
| 643 | |
| 644 | /* monitor tv audio mode */ |
| 645 | while (state->watch_stereo) { |
| 646 | if (msp_sleep(state,5000)) |
| 647 | goto restart; |
| 648 | watch_stereo(client); |
| 649 | } |
| 650 | } |
| 651 | v4l_dbg(1, client, "thread: exit\n"); |
| 652 | return 0; |
| 653 | } |
| 654 | |
| 655 | |
| 656 | int msp3410d_thread(void *data) |
| 657 | { |
| 658 | struct i2c_client *client = data; |
| 659 | struct msp_state *state = i2c_get_clientdata(client); |
| 660 | int mode,val,i,std; |
| 661 | |
| 662 | v4l_dbg(1, client, "msp3410 daemon started\n"); |
| 663 | |
| 664 | for (;;) { |
| 665 | v4l_dbg(2, client, "msp3410 thread: sleep\n"); |
| 666 | msp_sleep(state,-1); |
| 667 | v4l_dbg(2, client, "msp3410 thread: wakeup\n"); |
| 668 | |
| 669 | restart: |
| 670 | v4l_dbg(1, client, "thread: restart scan\n"); |
| 671 | state->restart = 0; |
| 672 | if (kthread_should_stop()) |
| 673 | break; |
| 674 | |
| 675 | if (state->mode == MSP_MODE_EXTERN) { |
| 676 | /* no carrier scan needed, just unmute */ |
| 677 | v4l_dbg(1, client, "thread: no carrier scan\n"); |
| 678 | msp_set_audio(client); |
| 679 | continue; |
| 680 | } |
| 681 | |
| 682 | /* put into sane state (and mute) */ |
| 683 | msp_reset(client); |
| 684 | |
| 685 | /* some time for the tuner to sync */ |
| 686 | if (msp_sleep(state,200)) |
| 687 | goto restart; |
| 688 | |
| 689 | /* start autodetect */ |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 690 | mode = msp_modus(client); |
| 691 | std = (state->std & V4L2_STD_NTSC) ? 0x20 : 1; |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 692 | msp_write_dem(client, 0x30, mode); |
| 693 | msp_write_dem(client, 0x20, std); |
| 694 | state->watch_stereo = 0; |
| 695 | |
| 696 | if (debug) |
| 697 | v4l_dbg(1, client, "setting mode: %s (0x%04x)\n", |
| 698 | msp_standard_mode_name(std), std); |
| 699 | |
| 700 | if (std != 1) { |
| 701 | /* programmed some specific mode */ |
| 702 | val = std; |
| 703 | } else { |
| 704 | /* triggered autodetect */ |
| 705 | for (;;) { |
| 706 | if (msp_sleep(state,100)) |
| 707 | goto restart; |
| 708 | |
| 709 | /* check results */ |
| 710 | val = msp_read_dem(client, 0x7e); |
| 711 | if (val < 0x07ff) |
| 712 | break; |
| 713 | v4l_dbg(1, client, "detection still in progress\n"); |
| 714 | } |
| 715 | } |
| 716 | for (i = 0; msp_modelist[i].name != NULL; i++) |
| 717 | if (msp_modelist[i].retval == val) |
| 718 | break; |
| 719 | v4l_dbg(1, client, "current mode: %s (0x%04x)\n", |
| 720 | msp_standard_mode_name(val), val); |
| 721 | state->main = msp_modelist[i].main; |
| 722 | state->second = msp_modelist[i].second; |
| 723 | |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 724 | if (amsound && (state->std & V4L2_STD_SECAM) && (val != 0x0009)) { |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 725 | /* autodetection has failed, let backup */ |
| 726 | v4l_dbg(1, client, "autodetection failed," |
| 727 | " switching to backup mode: %s (0x%04x)\n", |
| 728 | msp_modelist[8].name ? msp_modelist[8].name : "unknown",val); |
| 729 | val = 0x0009; |
| 730 | msp_write_dem(client, 0x20, val); |
| 731 | } |
| 732 | |
| 733 | /* set various prescales */ |
| 734 | msp_write_dsp(client, 0x0d, 0x1900); /* scart */ |
| 735 | msp_write_dsp(client, 0x0e, 0x2403); /* FM */ |
| 736 | msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ |
| 737 | |
| 738 | /* set stereo */ |
| 739 | switch (val) { |
| 740 | case 0x0008: /* B/G NICAM */ |
| 741 | case 0x000a: /* I NICAM */ |
| 742 | if (val == 0x0008) |
| 743 | state->mode = MSP_MODE_FM_NICAM1; |
| 744 | else |
| 745 | state->mode = MSP_MODE_FM_NICAM2; |
| 746 | /* just turn on stereo */ |
| 747 | state->rxsubchans = V4L2_TUNER_SUB_STEREO; |
| 748 | state->nicam_on = 1; |
| 749 | state->watch_stereo = 1; |
| 750 | msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO); |
| 751 | break; |
| 752 | case 0x0009: |
| 753 | state->mode = MSP_MODE_AM_NICAM; |
| 754 | state->rxsubchans = V4L2_TUNER_SUB_MONO; |
| 755 | state->nicam_on = 1; |
| 756 | msp3400c_setstereo(client,V4L2_TUNER_MODE_MONO); |
| 757 | state->watch_stereo = 1; |
| 758 | break; |
| 759 | case 0x0020: /* BTSC */ |
| 760 | /* just turn on stereo */ |
| 761 | state->mode = MSP_MODE_BTSC; |
| 762 | state->rxsubchans = V4L2_TUNER_SUB_STEREO; |
| 763 | state->nicam_on = 0; |
| 764 | state->watch_stereo = 1; |
| 765 | msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO); |
| 766 | break; |
| 767 | case 0x0040: /* FM radio */ |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 768 | state->mode = MSP_MODE_FM_RADIO; |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 769 | state->rxsubchans = V4L2_TUNER_SUB_STEREO; |
| 770 | state->audmode = V4L2_TUNER_MODE_STEREO; |
| 771 | state->nicam_on = 0; |
| 772 | state->watch_stereo = 0; |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 773 | /* not needed in theory if we have radio, but |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 774 | short programming enables carrier mute */ |
| 775 | msp3400c_setmode(client,MSP_MODE_FM_RADIO); |
| 776 | msp3400c_setcarrier(client, MSP_CARRIER(10.7), |
| 777 | MSP_CARRIER(10.7)); |
| 778 | /* scart routing */ |
| 779 | msp_set_scart(client,SCART_IN2,0); |
| 780 | /* msp34xx does radio decoding */ |
| 781 | msp_write_dsp(client, 0x08, 0x0020); |
| 782 | msp_write_dsp(client, 0x09, 0x0020); |
| 783 | msp_write_dsp(client, 0x0b, 0x0020); |
| 784 | break; |
| 785 | case 0x0003: |
| 786 | case 0x0004: |
| 787 | case 0x0005: |
| 788 | state->mode = MSP_MODE_FM_TERRA; |
| 789 | state->rxsubchans = V4L2_TUNER_SUB_MONO; |
| 790 | state->audmode = V4L2_TUNER_MODE_MONO; |
| 791 | state->nicam_on = 0; |
| 792 | state->watch_stereo = 1; |
| 793 | break; |
| 794 | } |
| 795 | |
| 796 | /* unmute, restore misc registers */ |
| 797 | msp_set_audio(client); |
| 798 | msp_write_dsp(client, 0x13, state->acb); |
| 799 | msp_write_dem(client, 0x40, state->i2s_mode); |
| 800 | |
| 801 | /* monitor tv audio mode */ |
| 802 | while (state->watch_stereo) { |
| 803 | if (msp_sleep(state,5000)) |
| 804 | goto restart; |
| 805 | watch_stereo(client); |
| 806 | } |
| 807 | } |
| 808 | v4l_dbg(1, client, "thread: exit\n"); |
| 809 | return 0; |
| 810 | } |
| 811 | |
| 812 | /* ----------------------------------------------------------------------- */ |
| 813 | |
| 814 | /* msp34xxG + (autoselect no-thread) */ |
| 815 | /* this one uses both automatic standard detection and automatic sound */ |
| 816 | /* select which are available in the newer G versions */ |
| 817 | /* struct msp: only norm, acb and source are really used in this mode */ |
| 818 | |
| 819 | /* set the same 'source' for the loudspeaker, scart and quasi-peak detector |
| 820 | * the value for source is the same as bit 15:8 of DSP registers 0x08, |
| 821 | * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B |
| 822 | * |
| 823 | * this function replaces msp3400c_setstereo |
| 824 | */ |
| 825 | static void msp34xxg_set_source(struct i2c_client *client, int source) |
| 826 | { |
| 827 | struct msp_state *state = i2c_get_clientdata(client); |
| 828 | |
| 829 | /* fix matrix mode to stereo and let the msp choose what |
| 830 | * to output according to 'source', as recommended |
| 831 | * for MONO (source==0) downmixing set bit[7:0] to 0x30 |
| 832 | */ |
| 833 | int value = (source & 0x07) << 8 | (source == 0 ? 0x30 : 0x20); |
| 834 | |
| 835 | v4l_dbg(1, client, "set source to %d (0x%x)\n", source, value); |
| 836 | /* Loudspeaker Output */ |
| 837 | msp_write_dsp(client, 0x08, value); |
| 838 | /* SCART1 DA Output */ |
| 839 | msp_write_dsp(client, 0x0a, value); |
| 840 | /* Quasi-peak detector */ |
| 841 | msp_write_dsp(client, 0x0c, value); |
| 842 | /* |
| 843 | * set identification threshold. Personally, I |
| 844 | * I set it to a higher value that the default |
| 845 | * of 0x190 to ignore noisy stereo signals. |
| 846 | * this needs tuning. (recommended range 0x00a0-0x03c0) |
| 847 | * 0x7f0 = forced mono mode |
| 848 | */ |
| 849 | /* a2 threshold for stereo/bilingual */ |
| 850 | msp_write_dem(client, 0x22, stereo_threshold); |
| 851 | state->source = source; |
| 852 | } |
| 853 | |
| 854 | /* (re-)initialize the msp34xxg, according to the current norm in state->norm |
| 855 | * return 0 if it worked, -1 if it failed |
| 856 | */ |
| 857 | static int msp34xxg_reset(struct i2c_client *client) |
| 858 | { |
| 859 | struct msp_state *state = i2c_get_clientdata(client); |
| 860 | int modus, std; |
| 861 | |
| 862 | if (msp_reset(client)) |
| 863 | return -1; |
| 864 | |
| 865 | /* make sure that input/output is muted (paranoid mode) */ |
| 866 | /* ACB, mute DSP input, mute SCART 1 */ |
| 867 | if (msp_write_dsp(client, 0x13, 0x0f20)) |
| 868 | return -1; |
| 869 | |
| 870 | msp_write_dem(client, 0x40, state->i2s_mode); |
| 871 | |
| 872 | /* step-by-step initialisation, as described in the manual */ |
Hans Verkuil | 7560d7a | 2006-01-09 18:21:32 -0200 | [diff] [blame^] | 873 | modus = msp_modus(client); |
| 874 | if (state->radio) |
| 875 | std = 0x40; |
| 876 | else |
| 877 | std = (state->std & V4L2_STD_NTSC) ? 0x20 : 1; |
Hans Verkuil | 7e8b09e | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 878 | modus &= ~0x03; /* STATUS_CHANGE = 0 */ |
| 879 | modus |= 0x01; /* AUTOMATIC_SOUND_DETECTION = 1 */ |
| 880 | if (msp_write_dem(client, 0x30, modus)) |
| 881 | return -1; |
| 882 | if (msp_write_dem(client, 0x20, std)) |
| 883 | return -1; |
| 884 | |
| 885 | /* write the dsps that may have an influence on |
| 886 | standard/audio autodetection right now */ |
| 887 | msp34xxg_set_source(client, state->source); |
| 888 | |
| 889 | /* AM/FM Prescale [15:8] 75khz deviation */ |
| 890 | if (msp_write_dsp(client, 0x0e, 0x3000)) |
| 891 | return -1; |
| 892 | |
| 893 | /* NICAM Prescale 9db gain (as recommended) */ |
| 894 | if (msp_write_dsp(client, 0x10, 0x5a00)) |
| 895 | return -1; |
| 896 | |
| 897 | return 0; |
| 898 | } |
| 899 | |
| 900 | int msp34xxg_thread(void *data) |
| 901 | { |
| 902 | struct i2c_client *client = data; |
| 903 | struct msp_state *state = i2c_get_clientdata(client); |
| 904 | int val, std, i; |
| 905 | |
| 906 | v4l_dbg(1, client, "msp34xxg daemon started\n"); |
| 907 | |
| 908 | state->source = 1; /* default */ |
| 909 | for (;;) { |
| 910 | v4l_dbg(2, client, "msp34xxg thread: sleep\n"); |
| 911 | msp_sleep(state, -1); |
| 912 | v4l_dbg(2, client, "msp34xxg thread: wakeup\n"); |
| 913 | |
| 914 | restart: |
| 915 | v4l_dbg(1, client, "thread: restart scan\n"); |
| 916 | state->restart = 0; |
| 917 | if (kthread_should_stop()) |
| 918 | break; |
| 919 | |
| 920 | /* setup the chip*/ |
| 921 | msp34xxg_reset(client); |
| 922 | std = standard; |
| 923 | if (std != 0x01) |
| 924 | goto unmute; |
| 925 | |
| 926 | /* watch autodetect */ |
| 927 | v4l_dbg(1, client, "triggered autodetect, waiting for result\n"); |
| 928 | for (i = 0; i < 10; i++) { |
| 929 | if (msp_sleep(state, 100)) |
| 930 | goto restart; |
| 931 | |
| 932 | /* check results */ |
| 933 | val = msp_read_dem(client, 0x7e); |
| 934 | if (val < 0x07ff) { |
| 935 | std = val; |
| 936 | break; |
| 937 | } |
| 938 | v4l_dbg(2, client, "detection still in progress\n"); |
| 939 | } |
| 940 | if (std == 1) { |
| 941 | v4l_dbg(1, client, "detection still in progress after 10 tries. giving up.\n"); |
| 942 | continue; |
| 943 | } |
| 944 | |
| 945 | unmute: |
| 946 | state->mode = std; |
| 947 | v4l_dbg(1, client, "current mode: %s (0x%04x)\n", |
| 948 | msp_standard_mode_name(std), std); |
| 949 | |
| 950 | /* unmute: dispatch sound to scart output, set scart volume */ |
| 951 | msp_set_audio(client); |
| 952 | |
| 953 | /* restore ACB */ |
| 954 | if (msp_write_dsp(client, 0x13, state->acb)) |
| 955 | return -1; |
| 956 | |
| 957 | msp_write_dem(client, 0x40, state->i2s_mode); |
| 958 | } |
| 959 | v4l_dbg(1, client, "thread: exit\n"); |
| 960 | return 0; |
| 961 | } |
| 962 | |
| 963 | void msp34xxg_detect_stereo(struct i2c_client *client) |
| 964 | { |
| 965 | struct msp_state *state = i2c_get_clientdata(client); |
| 966 | |
| 967 | int status = msp_read_dem(client, 0x0200); |
| 968 | int is_bilingual = status & 0x100; |
| 969 | int is_stereo = status & 0x40; |
| 970 | |
| 971 | state->rxsubchans = 0; |
| 972 | if (is_stereo) |
| 973 | state->rxsubchans |= V4L2_TUNER_SUB_STEREO; |
| 974 | else |
| 975 | state->rxsubchans |= V4L2_TUNER_SUB_MONO; |
| 976 | if (is_bilingual) { |
| 977 | state->rxsubchans |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; |
| 978 | /* I'm supposed to check whether it's SAP or not |
| 979 | * and set only LANG2/SAP in this case. Yet, the MSP |
| 980 | * does a lot of work to hide this and handle everything |
| 981 | * the same way. I don't want to work around it so unless |
| 982 | * this is a problem, I'll handle SAP just like lang1/lang2. |
| 983 | */ |
| 984 | } |
| 985 | v4l_dbg(1, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n", |
| 986 | status, is_stereo, is_bilingual, state->rxsubchans); |
| 987 | } |
| 988 | |
| 989 | void msp34xxg_set_audmode(struct i2c_client *client, int audmode) |
| 990 | { |
| 991 | struct msp_state *state = i2c_get_clientdata(client); |
| 992 | int source; |
| 993 | |
| 994 | switch (audmode) { |
| 995 | case V4L2_TUNER_MODE_MONO: |
| 996 | source = 0; /* mono only */ |
| 997 | break; |
| 998 | case V4L2_TUNER_MODE_STEREO: |
| 999 | source = 1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */ |
| 1000 | /* problem: that could also mean 2 (scart input) */ |
| 1001 | break; |
| 1002 | case V4L2_TUNER_MODE_LANG1: |
| 1003 | source = 3; /* stereo or A */ |
| 1004 | break; |
| 1005 | case V4L2_TUNER_MODE_LANG2: |
| 1006 | source = 4; /* stereo or B */ |
| 1007 | break; |
| 1008 | default: |
| 1009 | audmode = 0; |
| 1010 | source = 1; |
| 1011 | break; |
| 1012 | } |
| 1013 | state->audmode = audmode; |
| 1014 | msp34xxg_set_source(client, source); |
| 1015 | } |
| 1016 | |