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 * what works and what doesn't: 8 * 9 * AM-Mono 10 * Support for Hauppauge cards added (decoding handled by tuner) added by 11 * Frederic Crozat <fcrozat@mail.dotcom.fr> 12 * 13 * FM-Mono 14 * should work. The stereo modes are backward compatible to FM-mono, 15 * therefore FM-Mono should be always available. 16 * 17 * FM-Stereo (B/G, used in germany) 18 * should work, with autodetect 19 * 20 * FM-Stereo (satellite) 21 * should work, no autodetect (i.e. default is mono, but you can 22 * switch to stereo -- untested) 23 * 24 * NICAM (B/G, L , used in UK, Scandinavia, Spain and France) 25 * should work, with autodetect. Support for NICAM was added by 26 * Pekka Pietikainen <pp@netppl.fi> 27 * 28 * TODO: 29 * - better SAT support 30 * 31 * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch) 32 * using soundcore instead of OSS 33 */ 34 35 36#include <linux/kernel.h> 37#include <linux/module.h> 38#include <linux/slab.h> 39#include <linux/i2c.h> 40#include <linux/kthread.h> 41#include <linux/freezer.h> 42#include <linux/videodev2.h> 43#include <media/v4l2-device.h> 44#include <media/v4l2-ioctl.h> 45#include <media/drv-intf/msp3400.h> 46#include <media/i2c/tvaudio.h> 47#include "msp3400-driver.h" 48 49/* ---------------------------------------------------------------------- */ 50 51MODULE_DESCRIPTION("device driver for msp34xx TV sound processor"); 52MODULE_AUTHOR("Gerd Knorr"); 53MODULE_LICENSE("GPL"); 54 55/* module parameters */ 56static int opmode = OPMODE_AUTO; 57int msp_debug; /* msp_debug output */ 58bool msp_once; /* no continuous stereo monitoring */ 59bool msp_amsound; /* hard-wire AM sound at 6.5 Hz (france), 60 the autoscan seems work well only with FM... */ 61int msp_standard = 1; /* Override auto detect of audio msp_standard, 62 if needed. */ 63bool msp_dolby; 64 65int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual 66 (msp34xxg only) 0x00a0-0x03c0 */ 67 68/* read-only */ 69module_param(opmode, int, 0444); 70 71/* read-write */ 72module_param_named(once, msp_once, bool, 0644); 73module_param_named(debug, msp_debug, int, 0644); 74module_param_named(stereo_threshold, msp_stereo_thresh, int, 0644); 75module_param_named(standard, msp_standard, int, 0644); 76module_param_named(amsound, msp_amsound, bool, 0644); 77module_param_named(dolby, msp_dolby, bool, 0644); 78 79MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect"); 80MODULE_PARM_DESC(once, "No continuous stereo monitoring"); 81MODULE_PARM_DESC(debug, "Enable debug messages [0-3]"); 82MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo"); 83MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect"); 84MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan"); 85MODULE_PARM_DESC(dolby, "Activates Dolby processing"); 86 87/* ---------------------------------------------------------------------- */ 88 89/* control subaddress */ 90#define I2C_MSP_CONTROL 0x00 91/* demodulator unit subaddress */ 92#define I2C_MSP_DEM 0x10 93/* DSP unit subaddress */ 94#define I2C_MSP_DSP 0x12 95 96 97/* ----------------------------------------------------------------------- */ 98/* functions for talking to the MSP3400C Sound processor */ 99 100int msp_reset(struct i2c_client *client) 101{ 102 /* reset and read revision code */ 103 static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 }; 104 static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 }; 105 static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e }; 106 u8 read[2]; 107 struct i2c_msg reset[2] = { 108 { 109 .addr = client->addr, 110 .flags = I2C_M_IGNORE_NAK, 111 .len = 3, 112 .buf = reset_off 113 }, 114 { 115 .addr = client->addr, 116 .flags = I2C_M_IGNORE_NAK, 117 .len = 3, 118 .buf = reset_on 119 }, 120 }; 121 struct i2c_msg test[2] = { 122 { 123 .addr = client->addr, 124 .len = 3, 125 .buf = write 126 }, 127 { 128 .addr = client->addr, 129 .flags = I2C_M_RD, 130 .len = 2, 131 .buf = read 132 }, 133 }; 134 135 dev_dbg_lvl(&client->dev, 3, msp_debug, "msp_reset\n"); 136 if (i2c_transfer(client->adapter, &reset[0], 1) != 1 || 137 i2c_transfer(client->adapter, &reset[1], 1) != 1 || 138 i2c_transfer(client->adapter, test, 2) != 2) { 139 dev_err(&client->dev, "chip reset failed\n"); 140 return -1; 141 } 142 return 0; 143} 144 145static int msp_read(struct i2c_client *client, int dev, int addr) 146{ 147 int err, retval; 148 u8 write[3]; 149 u8 read[2]; 150 struct i2c_msg msgs[2] = { 151 { 152 .addr = client->addr, 153 .len = 3, 154 .buf = write 155 }, 156 { 157 .addr = client->addr, 158 .flags = I2C_M_RD, 159 .len = 2, 160 .buf = read 161 } 162 }; 163 164 write[0] = dev + 1; 165 write[1] = addr >> 8; 166 write[2] = addr & 0xff; 167 168 for (err = 0; err < 3; err++) { 169 if (i2c_transfer(client->adapter, msgs, 2) == 2) 170 break; 171 dev_warn(&client->dev, "I/O error #%d (read 0x%02x/0x%02x)\n", err, 172 dev, addr); 173 schedule_timeout_interruptible(msecs_to_jiffies(10)); 174 } 175 if (err == 3) { 176 dev_warn(&client->dev, "resetting chip, sound will go off.\n"); 177 msp_reset(client); 178 return -1; 179 } 180 retval = read[0] << 8 | read[1]; 181 dev_dbg_lvl(&client->dev, 3, msp_debug, "msp_read(0x%x, 0x%x): 0x%x\n", 182 dev, addr, retval); 183 return retval; 184} 185 186int msp_read_dem(struct i2c_client *client, int addr) 187{ 188 return msp_read(client, I2C_MSP_DEM, addr); 189} 190 191int msp_read_dsp(struct i2c_client *client, int addr) 192{ 193 return msp_read(client, I2C_MSP_DSP, addr); 194} 195 196static int msp_write(struct i2c_client *client, int dev, int addr, int val) 197{ 198 int err; 199 u8 buffer[5]; 200 201 buffer[0] = dev; 202 buffer[1] = addr >> 8; 203 buffer[2] = addr & 0xff; 204 buffer[3] = val >> 8; 205 buffer[4] = val & 0xff; 206 207 dev_dbg_lvl(&client->dev, 3, msp_debug, "msp_write(0x%x, 0x%x, 0x%x)\n", 208 dev, addr, val); 209 for (err = 0; err < 3; err++) { 210 if (i2c_master_send(client, buffer, 5) == 5) 211 break; 212 dev_warn(&client->dev, "I/O error #%d (write 0x%02x/0x%02x)\n", err, 213 dev, addr); 214 schedule_timeout_interruptible(msecs_to_jiffies(10)); 215 } 216 if (err == 3) { 217 dev_warn(&client->dev, "resetting chip, sound will go off.\n"); 218 msp_reset(client); 219 return -1; 220 } 221 return 0; 222} 223 224int msp_write_dem(struct i2c_client *client, int addr, int val) 225{ 226 return msp_write(client, I2C_MSP_DEM, addr, val); 227} 228 229int msp_write_dsp(struct i2c_client *client, int addr, int val) 230{ 231 return msp_write(client, I2C_MSP_DSP, addr, val); 232} 233 234/* ----------------------------------------------------------------------- * 235 * bits 9 8 5 - SCART DSP input Select: 236 * 0 0 0 - SCART 1 to DSP input (reset position) 237 * 0 1 0 - MONO to DSP input 238 * 1 0 0 - SCART 2 to DSP input 239 * 1 1 1 - Mute DSP input 240 * 241 * bits 11 10 6 - SCART 1 Output Select: 242 * 0 0 0 - undefined (reset position) 243 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS) 244 * 1 0 0 - MONO input to SCART 1 Output 245 * 1 1 0 - SCART 1 DA to SCART 1 Output 246 * 0 0 1 - SCART 2 DA to SCART 1 Output 247 * 0 1 1 - SCART 1 Input to SCART 1 Output 248 * 1 1 1 - Mute SCART 1 Output 249 * 250 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART): 251 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position) 252 * 0 1 0 - SCART 1 Input to SCART 2 Output 253 * 1 0 0 - MONO input to SCART 2 Output 254 * 0 0 1 - SCART 2 DA to SCART 2 Output 255 * 0 1 1 - SCART 2 Input to SCART 2 Output 256 * 1 1 0 - Mute SCART 2 Output 257 * 258 * Bits 4 to 0 should be zero. 259 * ----------------------------------------------------------------------- */ 260 261static int scarts[3][9] = { 262 /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */ 263 /* SCART DSP Input select */ 264 { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 }, 265 /* SCART1 Output select */ 266 { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 }, 267 /* SCART2 Output select */ 268 { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 }, 269}; 270 271static char *scart_names[] = { 272 "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute" 273}; 274 275void msp_set_scart(struct i2c_client *client, int in, int out) 276{ 277 struct msp_state *state = to_state(i2c_get_clientdata(client)); 278 279 state->in_scart = in; 280 281 if (in >= 0 && in <= 7 && out >= 0 && out <= 2) { 282 if (-1 == scarts[out][in + 1]) 283 return; 284 285 state->acb &= ~scarts[out][0]; 286 state->acb |= scarts[out][in + 1]; 287 } else 288 state->acb = 0xf60; /* Mute Input and SCART 1 Output */ 289 290 dev_dbg_lvl(&client->dev, 1, msp_debug, "scart switch: %s => %d (ACB=0x%04x)\n", 291 scart_names[in], out, state->acb); 292 msp_write_dsp(client, 0x13, state->acb); 293 294 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */ 295 if (state->has_i2s_conf) 296 msp_write_dem(client, 0x40, state->i2s_mode); 297} 298 299/* ------------------------------------------------------------------------ */ 300 301static void msp_wake_thread(struct i2c_client *client) 302{ 303 struct msp_state *state = to_state(i2c_get_clientdata(client)); 304 305 if (NULL == state->kthread) 306 return; 307 state->watch_stereo = 0; 308 state->restart = 1; 309 wake_up_interruptible(&state->wq); 310} 311 312int msp_sleep(struct msp_state *state, int msec) 313{ 314 long timeout; 315 316 timeout = msec < 0 ? MAX_SCHEDULE_TIMEOUT : msecs_to_jiffies(msec); 317 318 wait_event_freezable_timeout(state->wq, kthread_should_stop() || 319 state->restart, timeout); 320 321 return state->restart; 322} 323 324/* ------------------------------------------------------------------------ */ 325 326static int msp_s_ctrl(struct v4l2_ctrl *ctrl) 327{ 328 struct msp_state *state = ctrl_to_state(ctrl); 329 struct i2c_client *client = v4l2_get_subdevdata(&state->sd); 330 int val = ctrl->val; 331 332 switch (ctrl->id) { 333 case V4L2_CID_AUDIO_VOLUME: { 334 /* audio volume cluster */ 335 int reallymuted = state->muted->val | state->scan_in_progress; 336 337 if (!reallymuted) 338 val = (val * 0x7f / 65535) << 8; 339 340 dev_dbg_lvl(&client->dev, 1, msp_debug, "mute=%s scanning=%s volume=%d\n", 341 state->muted->val ? "on" : "off", 342 state->scan_in_progress ? "yes" : "no", 343 state->volume->val); 344 345 msp_write_dsp(client, 0x0000, val); 346 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1)); 347 if (state->has_scart2_out_volume) 348 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1)); 349 if (state->has_headphones) 350 msp_write_dsp(client, 0x0006, val); 351 break; 352 } 353 354 case V4L2_CID_AUDIO_BASS: 355 val = ((val - 32768) * 0x60 / 65535) << 8; 356 msp_write_dsp(client, 0x0002, val); 357 if (state->has_headphones) 358 msp_write_dsp(client, 0x0031, val); 359 break; 360 361 case V4L2_CID_AUDIO_TREBLE: 362 val = ((val - 32768) * 0x60 / 65535) << 8; 363 msp_write_dsp(client, 0x0003, val); 364 if (state->has_headphones) 365 msp_write_dsp(client, 0x0032, val); 366 break; 367 368 case V4L2_CID_AUDIO_LOUDNESS: 369 val = val ? ((5 * 4) << 8) : 0; 370 msp_write_dsp(client, 0x0004, val); 371 if (state->has_headphones) 372 msp_write_dsp(client, 0x0033, val); 373 break; 374 375 case V4L2_CID_AUDIO_BALANCE: 376 val = (u8)((val / 256) - 128); 377 msp_write_dsp(client, 0x0001, val << 8); 378 if (state->has_headphones) 379 msp_write_dsp(client, 0x0030, val << 8); 380 break; 381 382 default: 383 return -EINVAL; 384 } 385 return 0; 386} 387 388void msp_update_volume(struct msp_state *state) 389{ 390 /* Force an update of the volume/mute cluster */ 391 v4l2_ctrl_lock(state->volume); 392 state->volume->val = state->volume->cur.val; 393 state->muted->val = state->muted->cur.val; 394 msp_s_ctrl(state->volume); 395 v4l2_ctrl_unlock(state->volume); 396} 397 398/* --- v4l2 ioctls --- */ 399static int msp_s_radio(struct v4l2_subdev *sd) 400{ 401 struct msp_state *state = to_state(sd); 402 struct i2c_client *client = v4l2_get_subdevdata(sd); 403 404 if (state->radio) 405 return 0; 406 state->radio = 1; 407 dev_dbg_lvl(&client->dev, 1, msp_debug, "switching to radio mode\n"); 408 state->watch_stereo = 0; 409 switch (state->opmode) { 410 case OPMODE_MANUAL: 411 /* set msp3400 to FM radio mode */ 412 msp3400c_set_mode(client, MSP_MODE_FM_RADIO); 413 msp3400c_set_carrier(client, MSP_CARRIER(10.7), 414 MSP_CARRIER(10.7)); 415 msp_update_volume(state); 416 break; 417 case OPMODE_AUTODETECT: 418 case OPMODE_AUTOSELECT: 419 /* the thread will do for us */ 420 msp_wake_thread(client); 421 break; 422 } 423 return 0; 424} 425 426static int msp_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *freq) 427{ 428 struct i2c_client *client = v4l2_get_subdevdata(sd); 429 430 /* new channel -- kick audio carrier scan */ 431 msp_wake_thread(client); 432 return 0; 433} 434 435static int msp_querystd(struct v4l2_subdev *sd, v4l2_std_id *id) 436{ 437 struct msp_state *state = to_state(sd); 438 struct i2c_client *client = v4l2_get_subdevdata(sd); 439 440 *id &= state->detected_std; 441 442 dev_dbg_lvl(&client->dev, 2, msp_debug, 443 "detected standard: %s(0x%08Lx)\n", 444 msp_standard_std_name(state->std), state->detected_std); 445 446 return 0; 447} 448 449static int msp_s_std(struct v4l2_subdev *sd, v4l2_std_id id) 450{ 451 struct msp_state *state = to_state(sd); 452 struct i2c_client *client = v4l2_get_subdevdata(sd); 453 int update = state->radio || state->v4l2_std != id; 454 455 state->v4l2_std = id; 456 state->radio = 0; 457 if (update) 458 msp_wake_thread(client); 459 return 0; 460} 461 462static int msp_s_routing(struct v4l2_subdev *sd, 463 u32 input, u32 output, u32 config) 464{ 465 struct msp_state *state = to_state(sd); 466 struct i2c_client *client = v4l2_get_subdevdata(sd); 467 int tuner = (input >> 3) & 1; 468 int sc_in = input & 0x7; 469 int sc1_out = output & 0xf; 470 int sc2_out = (output >> 4) & 0xf; 471 u16 val, reg; 472 int i; 473 int extern_input = 1; 474 475 if (state->route_in == input && state->route_out == output) 476 return 0; 477 state->route_in = input; 478 state->route_out = output; 479 /* check if the tuner input is used */ 480 for (i = 0; i < 5; i++) { 481 if (((input >> (4 + i * 4)) & 0xf) == 0) 482 extern_input = 0; 483 } 484 state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT; 485 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 486 msp_set_scart(client, sc_in, 0); 487 msp_set_scart(client, sc1_out, 1); 488 msp_set_scart(client, sc2_out, 2); 489 msp_set_audmode(client); 490 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb; 491 val = msp_read_dem(client, reg); 492 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8)); 493 /* wake thread when a new input is chosen */ 494 msp_wake_thread(client); 495 return 0; 496} 497 498static int msp_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) 499{ 500 struct msp_state *state = to_state(sd); 501 struct i2c_client *client = v4l2_get_subdevdata(sd); 502 503 if (vt->type != V4L2_TUNER_ANALOG_TV) 504 return 0; 505 if (!state->radio) { 506 if (state->opmode == OPMODE_AUTOSELECT) 507 msp_detect_stereo(client); 508 vt->rxsubchans = state->rxsubchans; 509 } 510 vt->audmode = state->audmode; 511 vt->capability |= V4L2_TUNER_CAP_STEREO | 512 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; 513 return 0; 514} 515 516static int msp_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt) 517{ 518 struct msp_state *state = to_state(sd); 519 struct i2c_client *client = v4l2_get_subdevdata(sd); 520 521 if (state->radio) /* TODO: add mono/stereo support for radio */ 522 return 0; 523 if (state->audmode == vt->audmode) 524 return 0; 525 state->audmode = vt->audmode; 526 /* only set audmode */ 527 msp_set_audmode(client); 528 return 0; 529} 530 531static int msp_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq) 532{ 533 struct msp_state *state = to_state(sd); 534 struct i2c_client *client = v4l2_get_subdevdata(sd); 535 536 dev_dbg_lvl(&client->dev, 1, msp_debug, "Setting I2S speed to %d\n", freq); 537 538 switch (freq) { 539 case 1024000: 540 state->i2s_mode = 0; 541 break; 542 case 2048000: 543 state->i2s_mode = 1; 544 break; 545 default: 546 return -EINVAL; 547 } 548 return 0; 549} 550 551static int msp_log_status(struct v4l2_subdev *sd) 552{ 553 struct msp_state *state = to_state(sd); 554 struct i2c_client *client = v4l2_get_subdevdata(sd); 555 const char *p; 556 char prefix[sizeof(sd->name) + 20]; 557 558 if (state->opmode == OPMODE_AUTOSELECT) 559 msp_detect_stereo(client); 560 dev_info(&client->dev, "%s rev1 = 0x%04x rev2 = 0x%04x\n", 561 client->name, state->rev1, state->rev2); 562 snprintf(prefix, sizeof(prefix), "%s: Audio: ", sd->name); 563 v4l2_ctrl_handler_log_status(&state->hdl, prefix); 564 switch (state->mode) { 565 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break; 566 case MSP_MODE_FM_RADIO: p = "FM Radio"; break; 567 case MSP_MODE_FM_TERRA: p = "Terrestrial FM-mono/stereo"; break; 568 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break; 569 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break; 570 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break; 571 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break; 572 case MSP_MODE_BTSC: p = "BTSC"; break; 573 case MSP_MODE_EXTERN: p = "External input"; break; 574 default: p = "unknown"; break; 575 } 576 if (state->mode == MSP_MODE_EXTERN) { 577 dev_info(&client->dev, "Mode: %s\n", p); 578 } else if (state->opmode == OPMODE_MANUAL) { 579 dev_info(&client->dev, "Mode: %s (%s%s)\n", p, 580 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono", 581 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : ""); 582 } else { 583 if (state->opmode == OPMODE_AUTODETECT) 584 dev_info(&client->dev, "Mode: %s\n", p); 585 dev_info(&client->dev, "Standard: %s (%s%s)\n", 586 msp_standard_std_name(state->std), 587 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono", 588 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : ""); 589 } 590 dev_info(&client->dev, "Audmode: 0x%04x\n", state->audmode); 591 dev_info(&client->dev, "Routing: 0x%08x (input) 0x%08x (output)\n", 592 state->route_in, state->route_out); 593 dev_info(&client->dev, "ACB: 0x%04x\n", state->acb); 594 return 0; 595} 596 597#ifdef CONFIG_PM_SLEEP 598static int msp_suspend(struct device *dev) 599{ 600 struct i2c_client *client = to_i2c_client(dev); 601 dev_dbg_lvl(&client->dev, 1, msp_debug, "suspend\n"); 602 msp_reset(client); 603 return 0; 604} 605 606static int msp_resume(struct device *dev) 607{ 608 struct i2c_client *client = to_i2c_client(dev); 609 dev_dbg_lvl(&client->dev, 1, msp_debug, "resume\n"); 610 msp_wake_thread(client); 611 return 0; 612} 613#endif 614 615/* ----------------------------------------------------------------------- */ 616 617static const struct v4l2_ctrl_ops msp_ctrl_ops = { 618 .s_ctrl = msp_s_ctrl, 619}; 620 621static const struct v4l2_subdev_core_ops msp_core_ops = { 622 .log_status = msp_log_status, 623}; 624 625static const struct v4l2_subdev_video_ops msp_video_ops = { 626 .s_std = msp_s_std, 627 .querystd = msp_querystd, 628}; 629 630static const struct v4l2_subdev_tuner_ops msp_tuner_ops = { 631 .s_frequency = msp_s_frequency, 632 .g_tuner = msp_g_tuner, 633 .s_tuner = msp_s_tuner, 634 .s_radio = msp_s_radio, 635}; 636 637static const struct v4l2_subdev_audio_ops msp_audio_ops = { 638 .s_routing = msp_s_routing, 639 .s_i2s_clock_freq = msp_s_i2s_clock_freq, 640}; 641 642static const struct v4l2_subdev_ops msp_ops = { 643 .core = &msp_core_ops, 644 .video = &msp_video_ops, 645 .tuner = &msp_tuner_ops, 646 .audio = &msp_audio_ops, 647}; 648 649/* ----------------------------------------------------------------------- */ 650 651 652static const char * const opmode_str[] = { 653 [OPMODE_MANUAL] = "manual", 654 [OPMODE_AUTODETECT] = "autodetect", 655 [OPMODE_AUTOSELECT] = "autodetect and autoselect", 656}; 657 658static int msp_probe(struct i2c_client *client) 659{ 660 const struct i2c_device_id *id = i2c_client_get_device_id(client); 661 struct msp_state *state; 662 struct v4l2_subdev *sd; 663 struct v4l2_ctrl_handler *hdl; 664 int (*thread_func)(void *data) = NULL; 665 int msp_hard; 666 int msp_family; 667 int msp_revision; 668 int msp_product, msp_prod_hi, msp_prod_lo; 669 int msp_rom; 670#if defined(CONFIG_MEDIA_CONTROLLER) 671 int ret; 672#endif 673 674 if (!id) 675 strscpy(client->name, "msp3400", sizeof(client->name)); 676 677 if (msp_reset(client) == -1) { 678 dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3400 not found\n"); 679 return -ENODEV; 680 } 681 682 state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL); 683 if (!state) 684 return -ENOMEM; 685 686 sd = &state->sd; 687 v4l2_i2c_subdev_init(sd, client, &msp_ops); 688 689#if defined(CONFIG_MEDIA_CONTROLLER) 690 state->pads[MSP3400_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK; 691 state->pads[MSP3400_PAD_IF_INPUT].sig_type = PAD_SIGNAL_AUDIO; 692 state->pads[MSP3400_PAD_OUT].flags = MEDIA_PAD_FL_SOURCE; 693 state->pads[MSP3400_PAD_OUT].sig_type = PAD_SIGNAL_AUDIO; 694 695 sd->entity.function = MEDIA_ENT_F_IF_AUD_DECODER; 696 697 ret = media_entity_pads_init(&sd->entity, 2, state->pads); 698 if (ret < 0) 699 return ret; 700#endif 701 702 state->v4l2_std = V4L2_STD_NTSC; 703 state->detected_std = V4L2_STD_ALL; 704 state->audmode = V4L2_TUNER_MODE_STEREO; 705 state->input = -1; 706 state->i2s_mode = 0; 707 init_waitqueue_head(&state->wq); 708 /* These are the reset input/output positions */ 709 state->route_in = MSP_INPUT_DEFAULT; 710 state->route_out = MSP_OUTPUT_DEFAULT; 711 712 state->rev1 = msp_read_dsp(client, 0x1e); 713 if (state->rev1 != -1) 714 state->rev2 = msp_read_dsp(client, 0x1f); 715 dev_dbg_lvl(&client->dev, 1, msp_debug, "rev1=0x%04x, rev2=0x%04x\n", 716 state->rev1, state->rev2); 717 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) { 718 dev_dbg_lvl(&client->dev, 1, msp_debug, 719 "not an msp3400 (cannot read chip version)\n"); 720 return -ENODEV; 721 } 722 723 msp_family = ((state->rev1 >> 4) & 0x0f) + 3; 724 msp_product = (state->rev2 >> 8) & 0xff; 725 msp_prod_hi = msp_product / 10; 726 msp_prod_lo = msp_product % 10; 727 msp_revision = (state->rev1 & 0x0f) + '@'; 728 msp_hard = ((state->rev1 >> 8) & 0xff) + '@'; 729 msp_rom = state->rev2 & 0x1f; 730 /* Rev B=2, C=3, D=4, G=7 */ 731 state->ident = msp_family * 10000 + 4000 + msp_product * 10 + 732 msp_revision - '@'; 733 734 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */ 735 state->has_nicam = 736 msp_prod_hi == 1 || msp_prod_hi == 5; 737 /* Has radio support: was added with revision G */ 738 state->has_radio = 739 msp_revision >= 'G'; 740 /* Has headphones output: not for stripped down products */ 741 state->has_headphones = 742 msp_prod_lo < 5; 743 /* Has scart2 input: not in stripped down products of the '3' family */ 744 state->has_scart2 = 745 msp_family >= 4 || msp_prod_lo < 7; 746 /* Has scart3 input: not in stripped down products of the '3' family */ 747 state->has_scart3 = 748 msp_family >= 4 || msp_prod_lo < 5; 749 /* Has scart4 input: not in pre D revisions, not in stripped D revs */ 750 state->has_scart4 = 751 msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5); 752 /* Has scart2 output: not in stripped down products of 753 * the '3' family */ 754 state->has_scart2_out = 755 msp_family >= 4 || msp_prod_lo < 5; 756 /* Has scart2 a volume control? Not in pre-D revisions. */ 757 state->has_scart2_out_volume = 758 msp_revision > 'C' && state->has_scart2_out; 759 /* Has a configurable i2s out? */ 760 state->has_i2s_conf = 761 msp_revision >= 'G' && msp_prod_lo < 7; 762 /* Has subwoofer output: not in pre-D revs and not in stripped down 763 * products */ 764 state->has_subwoofer = 765 msp_revision >= 'D' && msp_prod_lo < 5; 766 /* Has soundprocessing (bass/treble/balance/loudness/equalizer): 767 * not in stripped down products */ 768 state->has_sound_processing = 769 msp_prod_lo < 7; 770 /* Has Virtual Dolby Surround: only in msp34x1 */ 771 state->has_virtual_dolby_surround = 772 msp_revision == 'G' && msp_prod_lo == 1; 773 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */ 774 state->has_dolby_pro_logic = 775 msp_revision == 'G' && msp_prod_lo == 2; 776 /* The msp343xG supports BTSC only and cannot do Automatic Standard 777 * Detection. */ 778 state->force_btsc = 779 msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3; 780 781 state->opmode = opmode; 782 if (state->opmode < OPMODE_MANUAL 783 || state->opmode > OPMODE_AUTOSELECT) { 784 /* MSP revision G and up have both autodetect and autoselect */ 785 if (msp_revision >= 'G') 786 state->opmode = OPMODE_AUTOSELECT; 787 /* MSP revision D and up have autodetect */ 788 else if (msp_revision >= 'D') 789 state->opmode = OPMODE_AUTODETECT; 790 else 791 state->opmode = OPMODE_MANUAL; 792 } 793 794 hdl = &state->hdl; 795 v4l2_ctrl_handler_init(hdl, 6); 796 if (state->has_sound_processing) { 797 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 798 V4L2_CID_AUDIO_BASS, 0, 65535, 65535 / 100, 32768); 799 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 800 V4L2_CID_AUDIO_TREBLE, 0, 65535, 65535 / 100, 32768); 801 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 802 V4L2_CID_AUDIO_LOUDNESS, 0, 1, 1, 0); 803 } 804 state->volume = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 805 V4L2_CID_AUDIO_VOLUME, 0, 65535, 65535 / 100, 58880); 806 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 807 V4L2_CID_AUDIO_BALANCE, 0, 65535, 65535 / 100, 32768); 808 state->muted = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 809 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); 810 sd->ctrl_handler = hdl; 811 if (hdl->error) { 812 int err = hdl->error; 813 814 v4l2_ctrl_handler_free(hdl); 815 return err; 816 } 817 818 v4l2_ctrl_cluster(2, &state->volume); 819 v4l2_ctrl_handler_setup(hdl); 820 821 dev_info(&client->dev, 822 "MSP%d4%02d%c-%c%d found on %s: supports %s%s%s, mode is %s\n", 823 msp_family, msp_product, 824 msp_revision, msp_hard, msp_rom, 825 client->adapter->name, 826 (state->has_nicam) ? "nicam" : "", 827 (state->has_nicam && state->has_radio) ? " and " : "", 828 (state->has_radio) ? "radio" : "", 829 opmode_str[state->opmode]); 830 831 /* version-specific initialization */ 832 switch (state->opmode) { 833 case OPMODE_MANUAL: 834 thread_func = msp3400c_thread; 835 break; 836 case OPMODE_AUTODETECT: 837 thread_func = msp3410d_thread; 838 break; 839 case OPMODE_AUTOSELECT: 840 thread_func = msp34xxg_thread; 841 break; 842 } 843 844 /* startup control thread if needed */ 845 if (thread_func) { 846 state->kthread = kthread_run(thread_func, client, "msp34xx"); 847 848 if (IS_ERR(state->kthread)) 849 dev_warn(&client->dev, "kernel_thread() failed\n"); 850 msp_wake_thread(client); 851 } 852 return 0; 853} 854 855static void msp_remove(struct i2c_client *client) 856{ 857 struct msp_state *state = to_state(i2c_get_clientdata(client)); 858 859 v4l2_device_unregister_subdev(&state->sd); 860 /* shutdown control thread */ 861 if (state->kthread) { 862 state->restart = 1; 863 kthread_stop(state->kthread); 864 } 865 msp_reset(client); 866 867 v4l2_ctrl_handler_free(&state->hdl); 868} 869 870/* ----------------------------------------------------------------------- */ 871 872static const struct dev_pm_ops msp3400_pm_ops = { 873 SET_SYSTEM_SLEEP_PM_OPS(msp_suspend, msp_resume) 874}; 875 876static const struct i2c_device_id msp_id[] = { 877 { "msp3400", 0 }, 878 { } 879}; 880MODULE_DEVICE_TABLE(i2c, msp_id); 881 882static struct i2c_driver msp_driver = { 883 .driver = { 884 .name = "msp3400", 885 .pm = &msp3400_pm_ops, 886 }, 887 .probe = msp_probe, 888 .remove = msp_remove, 889 .id_table = msp_id, 890}; 891 892module_i2c_driver(msp_driver); 893