1 /* 2 * Programming the mspx4xx sound processor family 3 * 4 * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org> 5 * 6 * what works and what doesn't: 7 * 8 * AM-Mono 9 * Support for Hauppauge cards added (decoding handled by tuner) added by 10 * Frederic Crozat <fcrozat@mail.dotcom.fr> 11 * 12 * FM-Mono 13 * should work. The stereo modes are backward compatible to FM-mono, 14 * therefore FM-Mono should be always available. 15 * 16 * FM-Stereo (B/G, used in germany) 17 * should work, with autodetect 18 * 19 * FM-Stereo (satellite) 20 * should work, no autodetect (i.e. default is mono, but you can 21 * switch to stereo -- untested) 22 * 23 * NICAM (B/G, L , used in UK, Scandinavia, Spain and France) 24 * should work, with autodetect. Support for NICAM was added by 25 * Pekka Pietikainen <pp@netppl.fi> 26 * 27 * TODO: 28 * - better SAT support 29 * 30 * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch) 31 * using soundcore instead of OSS 32 * 33 * This program is free software; you can redistribute it and/or 34 * modify it under the terms of the GNU General Public License 35 * as published by the Free Software Foundation; either version 2 36 * of the License, or (at your option) any later version. 37 * 38 * This program is distributed in the hope that it will be useful, 39 * but WITHOUT ANY WARRANTY; without even the implied warranty of 40 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 41 * GNU General Public License for more details. 42 */ 43 44 45 #include <linux/kernel.h> 46 #include <linux/module.h> 47 #include <linux/slab.h> 48 #include <linux/i2c.h> 49 #include <linux/kthread.h> 50 #include <linux/freezer.h> 51 #include <linux/videodev2.h> 52 #include <media/v4l2-device.h> 53 #include <media/v4l2-ioctl.h> 54 #include <media/drv-intf/msp3400.h> 55 #include <media/i2c/tvaudio.h> 56 #include "msp3400-driver.h" 57 58 /* ---------------------------------------------------------------------- */ 59 60 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor"); 61 MODULE_AUTHOR("Gerd Knorr"); 62 MODULE_LICENSE("GPL"); 63 64 /* module parameters */ 65 static int opmode = OPMODE_AUTO; 66 int msp_debug; /* msp_debug output */ 67 bool msp_once; /* no continuous stereo monitoring */ 68 bool msp_amsound; /* hard-wire AM sound at 6.5 Hz (france), 69 the autoscan seems work well only with FM... */ 70 int msp_standard = 1; /* Override auto detect of audio msp_standard, 71 if needed. */ 72 bool msp_dolby; 73 74 int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual 75 (msp34xxg only) 0x00a0-0x03c0 */ 76 77 /* read-only */ 78 module_param(opmode, int, 0444); 79 80 /* read-write */ 81 module_param_named(once, msp_once, bool, 0644); 82 module_param_named(debug, msp_debug, int, 0644); 83 module_param_named(stereo_threshold, msp_stereo_thresh, int, 0644); 84 module_param_named(standard, msp_standard, int, 0644); 85 module_param_named(amsound, msp_amsound, bool, 0644); 86 module_param_named(dolby, msp_dolby, bool, 0644); 87 88 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect"); 89 MODULE_PARM_DESC(once, "No continuous stereo monitoring"); 90 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]"); 91 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo"); 92 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect"); 93 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan"); 94 MODULE_PARM_DESC(dolby, "Activates Dolby processing"); 95 96 /* ---------------------------------------------------------------------- */ 97 98 /* control subaddress */ 99 #define I2C_MSP_CONTROL 0x00 100 /* demodulator unit subaddress */ 101 #define I2C_MSP_DEM 0x10 102 /* DSP unit subaddress */ 103 #define I2C_MSP_DSP 0x12 104 105 106 /* ----------------------------------------------------------------------- */ 107 /* functions for talking to the MSP3400C Sound processor */ 108 109 int msp_reset(struct i2c_client *client) 110 { 111 /* reset and read revision code */ 112 static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 }; 113 static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 }; 114 static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e }; 115 u8 read[2]; 116 struct i2c_msg reset[2] = { 117 { 118 .addr = client->addr, 119 .flags = I2C_M_IGNORE_NAK, 120 .len = 3, 121 .buf = reset_off 122 }, 123 { 124 .addr = client->addr, 125 .flags = I2C_M_IGNORE_NAK, 126 .len = 3, 127 .buf = reset_on 128 }, 129 }; 130 struct i2c_msg test[2] = { 131 { 132 .addr = client->addr, 133 .len = 3, 134 .buf = write 135 }, 136 { 137 .addr = client->addr, 138 .flags = I2C_M_RD, 139 .len = 2, 140 .buf = read 141 }, 142 }; 143 144 dev_dbg_lvl(&client->dev, 3, msp_debug, "msp_reset\n"); 145 if (i2c_transfer(client->adapter, &reset[0], 1) != 1 || 146 i2c_transfer(client->adapter, &reset[1], 1) != 1 || 147 i2c_transfer(client->adapter, test, 2) != 2) { 148 dev_err(&client->dev, "chip reset failed\n"); 149 return -1; 150 } 151 return 0; 152 } 153 154 static int msp_read(struct i2c_client *client, int dev, int addr) 155 { 156 int err, retval; 157 u8 write[3]; 158 u8 read[2]; 159 struct i2c_msg msgs[2] = { 160 { 161 .addr = client->addr, 162 .len = 3, 163 .buf = write 164 }, 165 { 166 .addr = client->addr, 167 .flags = I2C_M_RD, 168 .len = 2, 169 .buf = read 170 } 171 }; 172 173 write[0] = dev + 1; 174 write[1] = addr >> 8; 175 write[2] = addr & 0xff; 176 177 for (err = 0; err < 3; err++) { 178 if (i2c_transfer(client->adapter, msgs, 2) == 2) 179 break; 180 dev_warn(&client->dev, "I/O error #%d (read 0x%02x/0x%02x)\n", err, 181 dev, addr); 182 schedule_timeout_interruptible(msecs_to_jiffies(10)); 183 } 184 if (err == 3) { 185 dev_warn(&client->dev, "resetting chip, sound will go off.\n"); 186 msp_reset(client); 187 return -1; 188 } 189 retval = read[0] << 8 | read[1]; 190 dev_dbg_lvl(&client->dev, 3, msp_debug, "msp_read(0x%x, 0x%x): 0x%x\n", 191 dev, addr, retval); 192 return retval; 193 } 194 195 int msp_read_dem(struct i2c_client *client, int addr) 196 { 197 return msp_read(client, I2C_MSP_DEM, addr); 198 } 199 200 int msp_read_dsp(struct i2c_client *client, int addr) 201 { 202 return msp_read(client, I2C_MSP_DSP, addr); 203 } 204 205 static int msp_write(struct i2c_client *client, int dev, int addr, int val) 206 { 207 int err; 208 u8 buffer[5]; 209 210 buffer[0] = dev; 211 buffer[1] = addr >> 8; 212 buffer[2] = addr & 0xff; 213 buffer[3] = val >> 8; 214 buffer[4] = val & 0xff; 215 216 dev_dbg_lvl(&client->dev, 3, msp_debug, "msp_write(0x%x, 0x%x, 0x%x)\n", 217 dev, addr, val); 218 for (err = 0; err < 3; err++) { 219 if (i2c_master_send(client, buffer, 5) == 5) 220 break; 221 dev_warn(&client->dev, "I/O error #%d (write 0x%02x/0x%02x)\n", err, 222 dev, addr); 223 schedule_timeout_interruptible(msecs_to_jiffies(10)); 224 } 225 if (err == 3) { 226 dev_warn(&client->dev, "resetting chip, sound will go off.\n"); 227 msp_reset(client); 228 return -1; 229 } 230 return 0; 231 } 232 233 int msp_write_dem(struct i2c_client *client, int addr, int val) 234 { 235 return msp_write(client, I2C_MSP_DEM, addr, val); 236 } 237 238 int msp_write_dsp(struct i2c_client *client, int addr, int val) 239 { 240 return msp_write(client, I2C_MSP_DSP, addr, val); 241 } 242 243 /* ----------------------------------------------------------------------- * 244 * bits 9 8 5 - SCART DSP input Select: 245 * 0 0 0 - SCART 1 to DSP input (reset position) 246 * 0 1 0 - MONO to DSP input 247 * 1 0 0 - SCART 2 to DSP input 248 * 1 1 1 - Mute DSP input 249 * 250 * bits 11 10 6 - SCART 1 Output Select: 251 * 0 0 0 - undefined (reset position) 252 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS) 253 * 1 0 0 - MONO input to SCART 1 Output 254 * 1 1 0 - SCART 1 DA to SCART 1 Output 255 * 0 0 1 - SCART 2 DA to SCART 1 Output 256 * 0 1 1 - SCART 1 Input to SCART 1 Output 257 * 1 1 1 - Mute SCART 1 Output 258 * 259 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART): 260 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position) 261 * 0 1 0 - SCART 1 Input to SCART 2 Output 262 * 1 0 0 - MONO input to SCART 2 Output 263 * 0 0 1 - SCART 2 DA to SCART 2 Output 264 * 0 1 1 - SCART 2 Input to SCART 2 Output 265 * 1 1 0 - Mute SCART 2 Output 266 * 267 * Bits 4 to 0 should be zero. 268 * ----------------------------------------------------------------------- */ 269 270 static int scarts[3][9] = { 271 /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */ 272 /* SCART DSP Input select */ 273 { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 }, 274 /* SCART1 Output select */ 275 { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 }, 276 /* SCART2 Output select */ 277 { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 }, 278 }; 279 280 static char *scart_names[] = { 281 "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute" 282 }; 283 284 void msp_set_scart(struct i2c_client *client, int in, int out) 285 { 286 struct msp_state *state = to_state(i2c_get_clientdata(client)); 287 288 state->in_scart = in; 289 290 if (in >= 0 && in <= 7 && out >= 0 && out <= 2) { 291 if (-1 == scarts[out][in + 1]) 292 return; 293 294 state->acb &= ~scarts[out][0]; 295 state->acb |= scarts[out][in + 1]; 296 } else 297 state->acb = 0xf60; /* Mute Input and SCART 1 Output */ 298 299 dev_dbg_lvl(&client->dev, 1, msp_debug, "scart switch: %s => %d (ACB=0x%04x)\n", 300 scart_names[in], out, state->acb); 301 msp_write_dsp(client, 0x13, state->acb); 302 303 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */ 304 if (state->has_i2s_conf) 305 msp_write_dem(client, 0x40, state->i2s_mode); 306 } 307 308 /* ------------------------------------------------------------------------ */ 309 310 static void msp_wake_thread(struct i2c_client *client) 311 { 312 struct msp_state *state = to_state(i2c_get_clientdata(client)); 313 314 if (NULL == state->kthread) 315 return; 316 state->watch_stereo = 0; 317 state->restart = 1; 318 wake_up_interruptible(&state->wq); 319 } 320 321 int msp_sleep(struct msp_state *state, int timeout) 322 { 323 DECLARE_WAITQUEUE(wait, current); 324 325 add_wait_queue(&state->wq, &wait); 326 if (!kthread_should_stop()) { 327 if (timeout < 0) { 328 set_current_state(TASK_INTERRUPTIBLE); 329 schedule(); 330 } else { 331 schedule_timeout_interruptible 332 (msecs_to_jiffies(timeout)); 333 } 334 } 335 336 remove_wait_queue(&state->wq, &wait); 337 try_to_freeze(); 338 return state->restart; 339 } 340 341 /* ------------------------------------------------------------------------ */ 342 343 static int msp_s_ctrl(struct v4l2_ctrl *ctrl) 344 { 345 struct msp_state *state = ctrl_to_state(ctrl); 346 struct i2c_client *client = v4l2_get_subdevdata(&state->sd); 347 int val = ctrl->val; 348 349 switch (ctrl->id) { 350 case V4L2_CID_AUDIO_VOLUME: { 351 /* audio volume cluster */ 352 int reallymuted = state->muted->val | state->scan_in_progress; 353 354 if (!reallymuted) 355 val = (val * 0x7f / 65535) << 8; 356 357 dev_dbg_lvl(&client->dev, 1, msp_debug, "mute=%s scanning=%s volume=%d\n", 358 state->muted->val ? "on" : "off", 359 state->scan_in_progress ? "yes" : "no", 360 state->volume->val); 361 362 msp_write_dsp(client, 0x0000, val); 363 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1)); 364 if (state->has_scart2_out_volume) 365 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1)); 366 if (state->has_headphones) 367 msp_write_dsp(client, 0x0006, val); 368 break; 369 } 370 371 case V4L2_CID_AUDIO_BASS: 372 val = ((val - 32768) * 0x60 / 65535) << 8; 373 msp_write_dsp(client, 0x0002, val); 374 if (state->has_headphones) 375 msp_write_dsp(client, 0x0031, val); 376 break; 377 378 case V4L2_CID_AUDIO_TREBLE: 379 val = ((val - 32768) * 0x60 / 65535) << 8; 380 msp_write_dsp(client, 0x0003, val); 381 if (state->has_headphones) 382 msp_write_dsp(client, 0x0032, val); 383 break; 384 385 case V4L2_CID_AUDIO_LOUDNESS: 386 val = val ? ((5 * 4) << 8) : 0; 387 msp_write_dsp(client, 0x0004, val); 388 if (state->has_headphones) 389 msp_write_dsp(client, 0x0033, val); 390 break; 391 392 case V4L2_CID_AUDIO_BALANCE: 393 val = (u8)((val / 256) - 128); 394 msp_write_dsp(client, 0x0001, val << 8); 395 if (state->has_headphones) 396 msp_write_dsp(client, 0x0030, val << 8); 397 break; 398 399 default: 400 return -EINVAL; 401 } 402 return 0; 403 } 404 405 void msp_update_volume(struct msp_state *state) 406 { 407 /* Force an update of the volume/mute cluster */ 408 v4l2_ctrl_lock(state->volume); 409 state->volume->val = state->volume->cur.val; 410 state->muted->val = state->muted->cur.val; 411 msp_s_ctrl(state->volume); 412 v4l2_ctrl_unlock(state->volume); 413 } 414 415 /* --- v4l2 ioctls --- */ 416 static int msp_s_radio(struct v4l2_subdev *sd) 417 { 418 struct msp_state *state = to_state(sd); 419 struct i2c_client *client = v4l2_get_subdevdata(sd); 420 421 if (state->radio) 422 return 0; 423 state->radio = 1; 424 dev_dbg_lvl(&client->dev, 1, msp_debug, "switching to radio mode\n"); 425 state->watch_stereo = 0; 426 switch (state->opmode) { 427 case OPMODE_MANUAL: 428 /* set msp3400 to FM radio mode */ 429 msp3400c_set_mode(client, MSP_MODE_FM_RADIO); 430 msp3400c_set_carrier(client, MSP_CARRIER(10.7), 431 MSP_CARRIER(10.7)); 432 msp_update_volume(state); 433 break; 434 case OPMODE_AUTODETECT: 435 case OPMODE_AUTOSELECT: 436 /* the thread will do for us */ 437 msp_wake_thread(client); 438 break; 439 } 440 return 0; 441 } 442 443 static int msp_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *freq) 444 { 445 struct i2c_client *client = v4l2_get_subdevdata(sd); 446 447 /* new channel -- kick audio carrier scan */ 448 msp_wake_thread(client); 449 return 0; 450 } 451 452 static int msp_querystd(struct v4l2_subdev *sd, v4l2_std_id *id) 453 { 454 struct msp_state *state = to_state(sd); 455 struct i2c_client *client = v4l2_get_subdevdata(sd); 456 457 *id &= state->detected_std; 458 459 dev_dbg_lvl(&client->dev, 2, msp_debug, 460 "detected standard: %s(0x%08Lx)\n", 461 msp_standard_std_name(state->std), state->detected_std); 462 463 return 0; 464 } 465 466 static int msp_s_std(struct v4l2_subdev *sd, v4l2_std_id id) 467 { 468 struct msp_state *state = to_state(sd); 469 struct i2c_client *client = v4l2_get_subdevdata(sd); 470 int update = state->radio || state->v4l2_std != id; 471 472 state->v4l2_std = id; 473 state->radio = 0; 474 if (update) 475 msp_wake_thread(client); 476 return 0; 477 } 478 479 static int msp_s_routing(struct v4l2_subdev *sd, 480 u32 input, u32 output, u32 config) 481 { 482 struct msp_state *state = to_state(sd); 483 struct i2c_client *client = v4l2_get_subdevdata(sd); 484 int tuner = (input >> 3) & 1; 485 int sc_in = input & 0x7; 486 int sc1_out = output & 0xf; 487 int sc2_out = (output >> 4) & 0xf; 488 u16 val, reg; 489 int i; 490 int extern_input = 1; 491 492 if (state->route_in == input && state->route_out == output) 493 return 0; 494 state->route_in = input; 495 state->route_out = output; 496 /* check if the tuner input is used */ 497 for (i = 0; i < 5; i++) { 498 if (((input >> (4 + i * 4)) & 0xf) == 0) 499 extern_input = 0; 500 } 501 state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT; 502 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 503 msp_set_scart(client, sc_in, 0); 504 msp_set_scart(client, sc1_out, 1); 505 msp_set_scart(client, sc2_out, 2); 506 msp_set_audmode(client); 507 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb; 508 val = msp_read_dem(client, reg); 509 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8)); 510 /* wake thread when a new input is chosen */ 511 msp_wake_thread(client); 512 return 0; 513 } 514 515 static int msp_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) 516 { 517 struct msp_state *state = to_state(sd); 518 struct i2c_client *client = v4l2_get_subdevdata(sd); 519 520 if (vt->type != V4L2_TUNER_ANALOG_TV) 521 return 0; 522 if (!state->radio) { 523 if (state->opmode == OPMODE_AUTOSELECT) 524 msp_detect_stereo(client); 525 vt->rxsubchans = state->rxsubchans; 526 } 527 vt->audmode = state->audmode; 528 vt->capability |= V4L2_TUNER_CAP_STEREO | 529 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; 530 return 0; 531 } 532 533 static int msp_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt) 534 { 535 struct msp_state *state = to_state(sd); 536 struct i2c_client *client = v4l2_get_subdevdata(sd); 537 538 if (state->radio) /* TODO: add mono/stereo support for radio */ 539 return 0; 540 if (state->audmode == vt->audmode) 541 return 0; 542 state->audmode = vt->audmode; 543 /* only set audmode */ 544 msp_set_audmode(client); 545 return 0; 546 } 547 548 static int msp_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq) 549 { 550 struct msp_state *state = to_state(sd); 551 struct i2c_client *client = v4l2_get_subdevdata(sd); 552 553 dev_dbg_lvl(&client->dev, 1, msp_debug, "Setting I2S speed to %d\n", freq); 554 555 switch (freq) { 556 case 1024000: 557 state->i2s_mode = 0; 558 break; 559 case 2048000: 560 state->i2s_mode = 1; 561 break; 562 default: 563 return -EINVAL; 564 } 565 return 0; 566 } 567 568 static int msp_log_status(struct v4l2_subdev *sd) 569 { 570 struct msp_state *state = to_state(sd); 571 struct i2c_client *client = v4l2_get_subdevdata(sd); 572 const char *p; 573 char prefix[V4L2_SUBDEV_NAME_SIZE + 20]; 574 575 if (state->opmode == OPMODE_AUTOSELECT) 576 msp_detect_stereo(client); 577 dev_info(&client->dev, "%s rev1 = 0x%04x rev2 = 0x%04x\n", 578 client->name, state->rev1, state->rev2); 579 snprintf(prefix, sizeof(prefix), "%s: Audio: ", sd->name); 580 v4l2_ctrl_handler_log_status(&state->hdl, prefix); 581 switch (state->mode) { 582 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break; 583 case MSP_MODE_FM_RADIO: p = "FM Radio"; break; 584 case MSP_MODE_FM_TERRA: p = "Terrestrial FM-mono/stereo"; break; 585 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break; 586 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break; 587 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break; 588 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break; 589 case MSP_MODE_BTSC: p = "BTSC"; break; 590 case MSP_MODE_EXTERN: p = "External input"; break; 591 default: p = "unknown"; break; 592 } 593 if (state->mode == MSP_MODE_EXTERN) { 594 dev_info(&client->dev, "Mode: %s\n", p); 595 } else if (state->opmode == OPMODE_MANUAL) { 596 dev_info(&client->dev, "Mode: %s (%s%s)\n", p, 597 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono", 598 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : ""); 599 } else { 600 if (state->opmode == OPMODE_AUTODETECT) 601 dev_info(&client->dev, "Mode: %s\n", p); 602 dev_info(&client->dev, "Standard: %s (%s%s)\n", 603 msp_standard_std_name(state->std), 604 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono", 605 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : ""); 606 } 607 dev_info(&client->dev, "Audmode: 0x%04x\n", state->audmode); 608 dev_info(&client->dev, "Routing: 0x%08x (input) 0x%08x (output)\n", 609 state->route_in, state->route_out); 610 dev_info(&client->dev, "ACB: 0x%04x\n", state->acb); 611 return 0; 612 } 613 614 #ifdef CONFIG_PM_SLEEP 615 static int msp_suspend(struct device *dev) 616 { 617 struct i2c_client *client = to_i2c_client(dev); 618 dev_dbg_lvl(&client->dev, 1, msp_debug, "suspend\n"); 619 msp_reset(client); 620 return 0; 621 } 622 623 static int msp_resume(struct device *dev) 624 { 625 struct i2c_client *client = to_i2c_client(dev); 626 dev_dbg_lvl(&client->dev, 1, msp_debug, "resume\n"); 627 msp_wake_thread(client); 628 return 0; 629 } 630 #endif 631 632 /* ----------------------------------------------------------------------- */ 633 634 static const struct v4l2_ctrl_ops msp_ctrl_ops = { 635 .s_ctrl = msp_s_ctrl, 636 }; 637 638 static const struct v4l2_subdev_core_ops msp_core_ops = { 639 .log_status = msp_log_status, 640 }; 641 642 static const struct v4l2_subdev_video_ops msp_video_ops = { 643 .s_std = msp_s_std, 644 .querystd = msp_querystd, 645 }; 646 647 static const struct v4l2_subdev_tuner_ops msp_tuner_ops = { 648 .s_frequency = msp_s_frequency, 649 .g_tuner = msp_g_tuner, 650 .s_tuner = msp_s_tuner, 651 .s_radio = msp_s_radio, 652 }; 653 654 static const struct v4l2_subdev_audio_ops msp_audio_ops = { 655 .s_routing = msp_s_routing, 656 .s_i2s_clock_freq = msp_s_i2s_clock_freq, 657 }; 658 659 static const struct v4l2_subdev_ops msp_ops = { 660 .core = &msp_core_ops, 661 .video = &msp_video_ops, 662 .tuner = &msp_tuner_ops, 663 .audio = &msp_audio_ops, 664 }; 665 666 /* ----------------------------------------------------------------------- */ 667 668 669 static const char * const opmode_str[] = { 670 [OPMODE_MANUAL] = "manual", 671 [OPMODE_AUTODETECT] = "autodetect", 672 [OPMODE_AUTOSELECT] = "autodetect and autoselect", 673 }; 674 675 static int msp_probe(struct i2c_client *client, const struct i2c_device_id *id) 676 { 677 struct msp_state *state; 678 struct v4l2_subdev *sd; 679 struct v4l2_ctrl_handler *hdl; 680 int (*thread_func)(void *data) = NULL; 681 int msp_hard; 682 int msp_family; 683 int msp_revision; 684 int msp_product, msp_prod_hi, msp_prod_lo; 685 int msp_rom; 686 #if defined(CONFIG_MEDIA_CONTROLLER) 687 int ret; 688 #endif 689 690 if (!id) 691 strscpy(client->name, "msp3400", sizeof(client->name)); 692 693 if (msp_reset(client) == -1) { 694 dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3400 not found\n"); 695 return -ENODEV; 696 } 697 698 state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL); 699 if (!state) 700 return -ENOMEM; 701 702 sd = &state->sd; 703 v4l2_i2c_subdev_init(sd, client, &msp_ops); 704 705 #if defined(CONFIG_MEDIA_CONTROLLER) 706 state->pads[MSP3400_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK; 707 state->pads[MSP3400_PAD_IF_INPUT].sig_type = PAD_SIGNAL_AUDIO; 708 state->pads[MSP3400_PAD_OUT].flags = MEDIA_PAD_FL_SOURCE; 709 state->pads[MSP3400_PAD_OUT].sig_type = PAD_SIGNAL_AUDIO; 710 711 sd->entity.function = MEDIA_ENT_F_IF_AUD_DECODER; 712 713 ret = media_entity_pads_init(&sd->entity, 2, state->pads); 714 if (ret < 0) 715 return ret; 716 #endif 717 718 state->v4l2_std = V4L2_STD_NTSC; 719 state->detected_std = V4L2_STD_ALL; 720 state->audmode = V4L2_TUNER_MODE_STEREO; 721 state->input = -1; 722 state->i2s_mode = 0; 723 init_waitqueue_head(&state->wq); 724 /* These are the reset input/output positions */ 725 state->route_in = MSP_INPUT_DEFAULT; 726 state->route_out = MSP_OUTPUT_DEFAULT; 727 728 state->rev1 = msp_read_dsp(client, 0x1e); 729 if (state->rev1 != -1) 730 state->rev2 = msp_read_dsp(client, 0x1f); 731 dev_dbg_lvl(&client->dev, 1, msp_debug, "rev1=0x%04x, rev2=0x%04x\n", 732 state->rev1, state->rev2); 733 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) { 734 dev_dbg_lvl(&client->dev, 1, msp_debug, 735 "not an msp3400 (cannot read chip version)\n"); 736 return -ENODEV; 737 } 738 739 msp_family = ((state->rev1 >> 4) & 0x0f) + 3; 740 msp_product = (state->rev2 >> 8) & 0xff; 741 msp_prod_hi = msp_product / 10; 742 msp_prod_lo = msp_product % 10; 743 msp_revision = (state->rev1 & 0x0f) + '@'; 744 msp_hard = ((state->rev1 >> 8) & 0xff) + '@'; 745 msp_rom = state->rev2 & 0x1f; 746 /* Rev B=2, C=3, D=4, G=7 */ 747 state->ident = msp_family * 10000 + 4000 + msp_product * 10 + 748 msp_revision - '@'; 749 750 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */ 751 state->has_nicam = 752 msp_prod_hi == 1 || msp_prod_hi == 5; 753 /* Has radio support: was added with revision G */ 754 state->has_radio = 755 msp_revision >= 'G'; 756 /* Has headphones output: not for stripped down products */ 757 state->has_headphones = 758 msp_prod_lo < 5; 759 /* Has scart2 input: not in stripped down products of the '3' family */ 760 state->has_scart2 = 761 msp_family >= 4 || msp_prod_lo < 7; 762 /* Has scart3 input: not in stripped down products of the '3' family */ 763 state->has_scart3 = 764 msp_family >= 4 || msp_prod_lo < 5; 765 /* Has scart4 input: not in pre D revisions, not in stripped D revs */ 766 state->has_scart4 = 767 msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5); 768 /* Has scart2 output: not in stripped down products of 769 * the '3' family */ 770 state->has_scart2_out = 771 msp_family >= 4 || msp_prod_lo < 5; 772 /* Has scart2 a volume control? Not in pre-D revisions. */ 773 state->has_scart2_out_volume = 774 msp_revision > 'C' && state->has_scart2_out; 775 /* Has a configurable i2s out? */ 776 state->has_i2s_conf = 777 msp_revision >= 'G' && msp_prod_lo < 7; 778 /* Has subwoofer output: not in pre-D revs and not in stripped down 779 * products */ 780 state->has_subwoofer = 781 msp_revision >= 'D' && msp_prod_lo < 5; 782 /* Has soundprocessing (bass/treble/balance/loudness/equalizer): 783 * not in stripped down products */ 784 state->has_sound_processing = 785 msp_prod_lo < 7; 786 /* Has Virtual Dolby Surround: only in msp34x1 */ 787 state->has_virtual_dolby_surround = 788 msp_revision == 'G' && msp_prod_lo == 1; 789 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */ 790 state->has_dolby_pro_logic = 791 msp_revision == 'G' && msp_prod_lo == 2; 792 /* The msp343xG supports BTSC only and cannot do Automatic Standard 793 * Detection. */ 794 state->force_btsc = 795 msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3; 796 797 state->opmode = opmode; 798 if (state->opmode < OPMODE_MANUAL 799 || state->opmode > OPMODE_AUTOSELECT) { 800 /* MSP revision G and up have both autodetect and autoselect */ 801 if (msp_revision >= 'G') 802 state->opmode = OPMODE_AUTOSELECT; 803 /* MSP revision D and up have autodetect */ 804 else if (msp_revision >= 'D') 805 state->opmode = OPMODE_AUTODETECT; 806 else 807 state->opmode = OPMODE_MANUAL; 808 } 809 810 hdl = &state->hdl; 811 v4l2_ctrl_handler_init(hdl, 6); 812 if (state->has_sound_processing) { 813 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 814 V4L2_CID_AUDIO_BASS, 0, 65535, 65535 / 100, 32768); 815 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 816 V4L2_CID_AUDIO_TREBLE, 0, 65535, 65535 / 100, 32768); 817 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 818 V4L2_CID_AUDIO_LOUDNESS, 0, 1, 1, 0); 819 } 820 state->volume = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 821 V4L2_CID_AUDIO_VOLUME, 0, 65535, 65535 / 100, 58880); 822 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 823 V4L2_CID_AUDIO_BALANCE, 0, 65535, 65535 / 100, 32768); 824 state->muted = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 825 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); 826 sd->ctrl_handler = hdl; 827 if (hdl->error) { 828 int err = hdl->error; 829 830 v4l2_ctrl_handler_free(hdl); 831 return err; 832 } 833 834 v4l2_ctrl_cluster(2, &state->volume); 835 v4l2_ctrl_handler_setup(hdl); 836 837 dev_info(&client->dev, 838 "MSP%d4%02d%c-%c%d found on %s: supports %s%s%s, mode is %s\n", 839 msp_family, msp_product, 840 msp_revision, msp_hard, msp_rom, 841 client->adapter->name, 842 (state->has_nicam) ? "nicam" : "", 843 (state->has_nicam && state->has_radio) ? " and " : "", 844 (state->has_radio) ? "radio" : "", 845 opmode_str[state->opmode]); 846 847 /* version-specific initialization */ 848 switch (state->opmode) { 849 case OPMODE_MANUAL: 850 thread_func = msp3400c_thread; 851 break; 852 case OPMODE_AUTODETECT: 853 thread_func = msp3410d_thread; 854 break; 855 case OPMODE_AUTOSELECT: 856 thread_func = msp34xxg_thread; 857 break; 858 } 859 860 /* startup control thread if needed */ 861 if (thread_func) { 862 state->kthread = kthread_run(thread_func, client, "msp34xx"); 863 864 if (IS_ERR(state->kthread)) 865 dev_warn(&client->dev, "kernel_thread() failed\n"); 866 msp_wake_thread(client); 867 } 868 return 0; 869 } 870 871 static int msp_remove(struct i2c_client *client) 872 { 873 struct msp_state *state = to_state(i2c_get_clientdata(client)); 874 875 v4l2_device_unregister_subdev(&state->sd); 876 /* shutdown control thread */ 877 if (state->kthread) { 878 state->restart = 1; 879 kthread_stop(state->kthread); 880 } 881 msp_reset(client); 882 883 v4l2_ctrl_handler_free(&state->hdl); 884 return 0; 885 } 886 887 /* ----------------------------------------------------------------------- */ 888 889 static const struct dev_pm_ops msp3400_pm_ops = { 890 SET_SYSTEM_SLEEP_PM_OPS(msp_suspend, msp_resume) 891 }; 892 893 static const struct i2c_device_id msp_id[] = { 894 { "msp3400", 0 }, 895 { } 896 }; 897 MODULE_DEVICE_TABLE(i2c, msp_id); 898 899 static struct i2c_driver msp_driver = { 900 .driver = { 901 .name = "msp3400", 902 .pm = &msp3400_pm_ops, 903 }, 904 .probe = msp_probe, 905 .remove = msp_remove, 906 .id_table = msp_id, 907 }; 908 909 module_i2c_driver(msp_driver); 910