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 allways 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 * You should have received a copy of the GNU General Public License 44 * along with this program; if not, write to the Free Software 45 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 46 * 02110-1301, USA. 47 */ 48 49 50#include <linux/kernel.h> 51#include <linux/module.h> 52#include <linux/slab.h> 53#include <linux/i2c.h> 54#include <linux/kthread.h> 55#include <linux/freezer.h> 56#include <linux/videodev2.h> 57#include <media/v4l2-device.h> 58#include <media/v4l2-ioctl.h> 59#include <media/v4l2-i2c-drv.h> 60#include <media/msp3400.h> 61#include <media/tvaudio.h> 62#include "msp3400-driver.h" 63 64/* ---------------------------------------------------------------------- */ 65 66MODULE_DESCRIPTION("device driver for msp34xx TV sound processor"); 67MODULE_AUTHOR("Gerd Knorr"); 68MODULE_LICENSE("GPL"); 69 70/* module parameters */ 71static int opmode = OPMODE_AUTO; 72int msp_debug; /* msp_debug output */ 73int msp_once; /* no continous stereo monitoring */ 74int msp_amsound; /* hard-wire AM sound at 6.5 Hz (france), 75 the autoscan seems work well only with FM... */ 76int msp_standard = 1; /* Override auto detect of audio msp_standard, 77 if needed. */ 78int msp_dolby; 79 80int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual 81 (msp34xxg only) 0x00a0-0x03c0 */ 82 83/* read-only */ 84module_param(opmode, int, 0444); 85 86/* read-write */ 87module_param_named(once, msp_once, bool, 0644); 88module_param_named(debug, msp_debug, int, 0644); 89module_param_named(stereo_threshold, msp_stereo_thresh, int, 0644); 90module_param_named(standard, msp_standard, int, 0644); 91module_param_named(amsound, msp_amsound, bool, 0644); 92module_param_named(dolby, msp_dolby, bool, 0644); 93 94MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect"); 95MODULE_PARM_DESC(once, "No continuous stereo monitoring"); 96MODULE_PARM_DESC(debug, "Enable debug messages [0-3]"); 97MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo"); 98MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect"); 99MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan"); 100MODULE_PARM_DESC(dolby, "Activates Dolby processsing"); 101 102/* ---------------------------------------------------------------------- */ 103 104/* control subaddress */ 105#define I2C_MSP_CONTROL 0x00 106/* demodulator unit subaddress */ 107#define I2C_MSP_DEM 0x10 108/* DSP unit subaddress */ 109#define I2C_MSP_DSP 0x12 110 111 112/* ----------------------------------------------------------------------- */ 113/* functions for talking to the MSP3400C Sound processor */ 114 115int msp_reset(struct i2c_client *client) 116{ 117 /* reset and read revision code */ 118 static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 }; 119 static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 }; 120 static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e }; 121 u8 read[2]; 122 struct i2c_msg reset[2] = { 123 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off }, 124 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on }, 125 }; 126 struct i2c_msg test[2] = { 127 { client->addr, 0, 3, write }, 128 { client->addr, I2C_M_RD, 2, read }, 129 }; 130 131 v4l_dbg(3, msp_debug, client, "msp_reset\n"); 132 if (i2c_transfer(client->adapter, &reset[0], 1) != 1 || 133 i2c_transfer(client->adapter, &reset[1], 1) != 1 || 134 i2c_transfer(client->adapter, test, 2) != 2) { 135 v4l_err(client, "chip reset failed\n"); 136 return -1; 137 } 138 return 0; 139} 140 141static int msp_read(struct i2c_client *client, int dev, int addr) 142{ 143 int err, retval; 144 u8 write[3]; 145 u8 read[2]; 146 struct i2c_msg msgs[2] = { 147 { client->addr, 0, 3, write }, 148 { client->addr, I2C_M_RD, 2, read } 149 }; 150 151 write[0] = dev + 1; 152 write[1] = addr >> 8; 153 write[2] = addr & 0xff; 154 155 for (err = 0; err < 3; err++) { 156 if (i2c_transfer(client->adapter, msgs, 2) == 2) 157 break; 158 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err, 159 dev, addr); 160 schedule_timeout_interruptible(msecs_to_jiffies(10)); 161 } 162 if (err == 3) { 163 v4l_warn(client, "resetting chip, sound will go off.\n"); 164 msp_reset(client); 165 return -1; 166 } 167 retval = read[0] << 8 | read[1]; 168 v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n", 169 dev, addr, retval); 170 return retval; 171} 172 173int msp_read_dem(struct i2c_client *client, int addr) 174{ 175 return msp_read(client, I2C_MSP_DEM, addr); 176} 177 178int msp_read_dsp(struct i2c_client *client, int addr) 179{ 180 return msp_read(client, I2C_MSP_DSP, addr); 181} 182 183static int msp_write(struct i2c_client *client, int dev, int addr, int val) 184{ 185 int err; 186 u8 buffer[5]; 187 188 buffer[0] = dev; 189 buffer[1] = addr >> 8; 190 buffer[2] = addr & 0xff; 191 buffer[3] = val >> 8; 192 buffer[4] = val & 0xff; 193 194 v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n", 195 dev, addr, val); 196 for (err = 0; err < 3; err++) { 197 if (i2c_master_send(client, buffer, 5) == 5) 198 break; 199 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err, 200 dev, addr); 201 schedule_timeout_interruptible(msecs_to_jiffies(10)); 202 } 203 if (err == 3) { 204 v4l_warn(client, "resetting chip, sound will go off.\n"); 205 msp_reset(client); 206 return -1; 207 } 208 return 0; 209} 210 211int msp_write_dem(struct i2c_client *client, int addr, int val) 212{ 213 return msp_write(client, I2C_MSP_DEM, addr, val); 214} 215 216int msp_write_dsp(struct i2c_client *client, int addr, int val) 217{ 218 return msp_write(client, I2C_MSP_DSP, addr, val); 219} 220 221/* ----------------------------------------------------------------------- * 222 * bits 9 8 5 - SCART DSP input Select: 223 * 0 0 0 - SCART 1 to DSP input (reset position) 224 * 0 1 0 - MONO to DSP input 225 * 1 0 0 - SCART 2 to DSP input 226 * 1 1 1 - Mute DSP input 227 * 228 * bits 11 10 6 - SCART 1 Output Select: 229 * 0 0 0 - undefined (reset position) 230 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS) 231 * 1 0 0 - MONO input to SCART 1 Output 232 * 1 1 0 - SCART 1 DA to SCART 1 Output 233 * 0 0 1 - SCART 2 DA to SCART 1 Output 234 * 0 1 1 - SCART 1 Input to SCART 1 Output 235 * 1 1 1 - Mute SCART 1 Output 236 * 237 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART): 238 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position) 239 * 0 1 0 - SCART 1 Input to SCART 2 Output 240 * 1 0 0 - MONO input to SCART 2 Output 241 * 0 0 1 - SCART 2 DA to SCART 2 Output 242 * 0 1 1 - SCART 2 Input to SCART 2 Output 243 * 1 1 0 - Mute SCART 2 Output 244 * 245 * Bits 4 to 0 should be zero. 246 * ----------------------------------------------------------------------- */ 247 248static int scarts[3][9] = { 249 /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */ 250 /* SCART DSP Input select */ 251 { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 }, 252 /* SCART1 Output select */ 253 { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 }, 254 /* SCART2 Output select */ 255 { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 }, 256}; 257 258static char *scart_names[] = { 259 "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute" 260}; 261 262void msp_set_scart(struct i2c_client *client, int in, int out) 263{ 264 struct msp_state *state = to_state(i2c_get_clientdata(client)); 265 266 state->in_scart = in; 267 268 if (in >= 0 && in <= 7 && out >= 0 && out <= 2) { 269 if (-1 == scarts[out][in + 1]) 270 return; 271 272 state->acb &= ~scarts[out][0]; 273 state->acb |= scarts[out][in + 1]; 274 } else 275 state->acb = 0xf60; /* Mute Input and SCART 1 Output */ 276 277 v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n", 278 scart_names[in], out, state->acb); 279 msp_write_dsp(client, 0x13, state->acb); 280 281 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */ 282 if (state->has_i2s_conf) 283 msp_write_dem(client, 0x40, state->i2s_mode); 284} 285 286/* ------------------------------------------------------------------------ */ 287 288static void msp_wake_thread(struct i2c_client *client) 289{ 290 struct msp_state *state = to_state(i2c_get_clientdata(client)); 291 292 if (NULL == state->kthread) 293 return; 294 state->watch_stereo = 0; 295 state->restart = 1; 296 wake_up_interruptible(&state->wq); 297} 298 299int msp_sleep(struct msp_state *state, int timeout) 300{ 301 DECLARE_WAITQUEUE(wait, current); 302 303 add_wait_queue(&state->wq, &wait); 304 if (!kthread_should_stop()) { 305 if (timeout < 0) { 306 set_current_state(TASK_INTERRUPTIBLE); 307 schedule(); 308 } else { 309 schedule_timeout_interruptible 310 (msecs_to_jiffies(timeout)); 311 } 312 } 313 314 remove_wait_queue(&state->wq, &wait); 315 try_to_freeze(); 316 return state->restart; 317} 318 319/* ------------------------------------------------------------------------ */ 320 321static int msp_s_ctrl(struct v4l2_ctrl *ctrl) 322{ 323 struct msp_state *state = ctrl_to_state(ctrl); 324 struct i2c_client *client = v4l2_get_subdevdata(&state->sd); 325 int val = ctrl->val; 326 327 switch (ctrl->id) { 328 case V4L2_CID_AUDIO_VOLUME: { 329 /* audio volume cluster */ 330 int reallymuted = state->muted->val | state->scan_in_progress; 331 332 if (!reallymuted) 333 val = (val * 0x7f / 65535) << 8; 334 335 v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n", 336 state->muted->val ? "on" : "off", 337 state->scan_in_progress ? "yes" : "no", 338 state->volume->val); 339 340 msp_write_dsp(client, 0x0000, val); 341 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1)); 342 if (state->has_scart2_out_volume) 343 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1)); 344 if (state->has_headphones) 345 msp_write_dsp(client, 0x0006, val); 346 break; 347 } 348 349 case V4L2_CID_AUDIO_BASS: 350 val = ((val - 32768) * 0x60 / 65535) << 8; 351 msp_write_dsp(client, 0x0002, val); 352 if (state->has_headphones) 353 msp_write_dsp(client, 0x0031, val); 354 break; 355 356 case V4L2_CID_AUDIO_TREBLE: 357 val = ((val - 32768) * 0x60 / 65535) << 8; 358 msp_write_dsp(client, 0x0003, val); 359 if (state->has_headphones) 360 msp_write_dsp(client, 0x0032, val); 361 break; 362 363 case V4L2_CID_AUDIO_LOUDNESS: 364 val = val ? ((5 * 4) << 8) : 0; 365 msp_write_dsp(client, 0x0004, val); 366 if (state->has_headphones) 367 msp_write_dsp(client, 0x0033, val); 368 break; 369 370 case V4L2_CID_AUDIO_BALANCE: 371 val = (u8)((val / 256) - 128); 372 msp_write_dsp(client, 0x0001, val << 8); 373 if (state->has_headphones) 374 msp_write_dsp(client, 0x0030, val << 8); 375 break; 376 377 default: 378 return -EINVAL; 379 } 380 return 0; 381} 382 383void msp_update_volume(struct msp_state *state) 384{ 385 /* Force an update of the volume/mute cluster */ 386 v4l2_ctrl_lock(state->volume); 387 state->volume->val = state->volume->cur.val; 388 state->muted->val = state->muted->cur.val; 389 msp_s_ctrl(state->volume); 390 v4l2_ctrl_unlock(state->volume); 391} 392 393/* --- v4l2 ioctls --- */ 394static int msp_s_radio(struct v4l2_subdev *sd) 395{ 396 struct msp_state *state = to_state(sd); 397 struct i2c_client *client = v4l2_get_subdevdata(sd); 398 399 if (state->radio) 400 return 0; 401 state->radio = 1; 402 v4l_dbg(1, msp_debug, client, "switching to radio mode\n"); 403 state->watch_stereo = 0; 404 switch (state->opmode) { 405 case OPMODE_MANUAL: 406 /* set msp3400 to FM radio mode */ 407 msp3400c_set_mode(client, MSP_MODE_FM_RADIO); 408 msp3400c_set_carrier(client, MSP_CARRIER(10.7), 409 MSP_CARRIER(10.7)); 410 msp_update_volume(state); 411 break; 412 case OPMODE_AUTODETECT: 413 case OPMODE_AUTOSELECT: 414 /* the thread will do for us */ 415 msp_wake_thread(client); 416 break; 417 } 418 return 0; 419} 420 421static int msp_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq) 422{ 423 struct i2c_client *client = v4l2_get_subdevdata(sd); 424 425 /* new channel -- kick audio carrier scan */ 426 msp_wake_thread(client); 427 return 0; 428} 429 430static int msp_s_std(struct v4l2_subdev *sd, v4l2_std_id id) 431{ 432 struct msp_state *state = to_state(sd); 433 struct i2c_client *client = v4l2_get_subdevdata(sd); 434 int update = state->radio || state->v4l2_std != id; 435 436 state->v4l2_std = id; 437 state->radio = 0; 438 if (update) 439 msp_wake_thread(client); 440 return 0; 441} 442 443static int msp_s_routing(struct v4l2_subdev *sd, 444 u32 input, u32 output, u32 config) 445{ 446 struct msp_state *state = to_state(sd); 447 struct i2c_client *client = v4l2_get_subdevdata(sd); 448 int tuner = (input >> 3) & 1; 449 int sc_in = input & 0x7; 450 int sc1_out = output & 0xf; 451 int sc2_out = (output >> 4) & 0xf; 452 u16 val, reg; 453 int i; 454 int extern_input = 1; 455 456 if (state->route_in == input && state->route_out == output) 457 return 0; 458 state->route_in = input; 459 state->route_out = output; 460 /* check if the tuner input is used */ 461 for (i = 0; i < 5; i++) { 462 if (((input >> (4 + i * 4)) & 0xf) == 0) 463 extern_input = 0; 464 } 465 state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT; 466 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 467 msp_set_scart(client, sc_in, 0); 468 msp_set_scart(client, sc1_out, 1); 469 msp_set_scart(client, sc2_out, 2); 470 msp_set_audmode(client); 471 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb; 472 val = msp_read_dem(client, reg); 473 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8)); 474 /* wake thread when a new input is chosen */ 475 msp_wake_thread(client); 476 return 0; 477} 478 479static int msp_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) 480{ 481 struct msp_state *state = to_state(sd); 482 struct i2c_client *client = v4l2_get_subdevdata(sd); 483 484 if (state->radio) 485 return 0; 486 if (state->opmode == OPMODE_AUTOSELECT) 487 msp_detect_stereo(client); 488 vt->audmode = state->audmode; 489 vt->rxsubchans = state->rxsubchans; 490 vt->capability |= V4L2_TUNER_CAP_STEREO | 491 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; 492 return 0; 493} 494 495static int msp_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) 496{ 497 struct msp_state *state = to_state(sd); 498 struct i2c_client *client = v4l2_get_subdevdata(sd); 499 500 if (state->radio) /* TODO: add mono/stereo support for radio */ 501 return 0; 502 if (state->audmode == vt->audmode) 503 return 0; 504 state->audmode = vt->audmode; 505 /* only set audmode */ 506 msp_set_audmode(client); 507 return 0; 508} 509 510static int msp_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq) 511{ 512 struct msp_state *state = to_state(sd); 513 struct i2c_client *client = v4l2_get_subdevdata(sd); 514 515 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", freq); 516 517 switch (freq) { 518 case 1024000: 519 state->i2s_mode = 0; 520 break; 521 case 2048000: 522 state->i2s_mode = 1; 523 break; 524 default: 525 return -EINVAL; 526 } 527 return 0; 528} 529 530static int msp_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) 531{ 532 struct msp_state *state = to_state(sd); 533 struct i2c_client *client = v4l2_get_subdevdata(sd); 534 535 return v4l2_chip_ident_i2c_client(client, chip, state->ident, 536 (state->rev1 << 16) | state->rev2); 537} 538 539static int msp_log_status(struct v4l2_subdev *sd) 540{ 541 struct msp_state *state = to_state(sd); 542 struct i2c_client *client = v4l2_get_subdevdata(sd); 543 const char *p; 544 char prefix[V4L2_SUBDEV_NAME_SIZE + 20]; 545 546 if (state->opmode == OPMODE_AUTOSELECT) 547 msp_detect_stereo(client); 548 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n", 549 client->name, state->rev1, state->rev2); 550 snprintf(prefix, sizeof(prefix), "%s: Audio: ", sd->name); 551 v4l2_ctrl_handler_log_status(&state->hdl, prefix); 552 switch (state->mode) { 553 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break; 554 case MSP_MODE_FM_RADIO: p = "FM Radio"; break; 555 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono/stereo"; break; 556 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break; 557 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break; 558 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break; 559 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break; 560 case MSP_MODE_BTSC: p = "BTSC"; break; 561 case MSP_MODE_EXTERN: p = "External input"; break; 562 default: p = "unknown"; break; 563 } 564 if (state->mode == MSP_MODE_EXTERN) { 565 v4l_info(client, "Mode: %s\n", p); 566 } else if (state->opmode == OPMODE_MANUAL) { 567 v4l_info(client, "Mode: %s (%s%s)\n", p, 568 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono", 569 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : ""); 570 } else { 571 if (state->opmode == OPMODE_AUTODETECT) 572 v4l_info(client, "Mode: %s\n", p); 573 v4l_info(client, "Standard: %s (%s%s)\n", 574 msp_standard_std_name(state->std), 575 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono", 576 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : ""); 577 } 578 v4l_info(client, "Audmode: 0x%04x\n", state->audmode); 579 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n", 580 state->route_in, state->route_out); 581 v4l_info(client, "ACB: 0x%04x\n", state->acb); 582 return 0; 583} 584 585static int msp_suspend(struct i2c_client *client, pm_message_t state) 586{ 587 v4l_dbg(1, msp_debug, client, "suspend\n"); 588 msp_reset(client); 589 return 0; 590} 591 592static int msp_resume(struct i2c_client *client) 593{ 594 v4l_dbg(1, msp_debug, client, "resume\n"); 595 msp_wake_thread(client); 596 return 0; 597} 598 599/* ----------------------------------------------------------------------- */ 600 601static const struct v4l2_ctrl_ops msp_ctrl_ops = { 602 .s_ctrl = msp_s_ctrl, 603}; 604 605static const struct v4l2_subdev_core_ops msp_core_ops = { 606 .log_status = msp_log_status, 607 .g_chip_ident = msp_g_chip_ident, 608 .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, 609 .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, 610 .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, 611 .g_ctrl = v4l2_subdev_g_ctrl, 612 .s_ctrl = v4l2_subdev_s_ctrl, 613 .queryctrl = v4l2_subdev_queryctrl, 614 .querymenu = v4l2_subdev_querymenu, 615 .s_std = msp_s_std, 616}; 617 618static const struct v4l2_subdev_tuner_ops msp_tuner_ops = { 619 .s_frequency = msp_s_frequency, 620 .g_tuner = msp_g_tuner, 621 .s_tuner = msp_s_tuner, 622 .s_radio = msp_s_radio, 623}; 624 625static const struct v4l2_subdev_audio_ops msp_audio_ops = { 626 .s_routing = msp_s_routing, 627 .s_i2s_clock_freq = msp_s_i2s_clock_freq, 628}; 629 630static const struct v4l2_subdev_ops msp_ops = { 631 .core = &msp_core_ops, 632 .tuner = &msp_tuner_ops, 633 .audio = &msp_audio_ops, 634}; 635 636/* ----------------------------------------------------------------------- */ 637 638static int msp_probe(struct i2c_client *client, const struct i2c_device_id *id) 639{ 640 struct msp_state *state; 641 struct v4l2_subdev *sd; 642 struct v4l2_ctrl_handler *hdl; 643 int (*thread_func)(void *data) = NULL; 644 int msp_hard; 645 int msp_family; 646 int msp_revision; 647 int msp_product, msp_prod_hi, msp_prod_lo; 648 int msp_rom; 649 650 if (!id) 651 strlcpy(client->name, "msp3400", sizeof(client->name)); 652 653 if (msp_reset(client) == -1) { 654 v4l_dbg(1, msp_debug, client, "msp3400 not found\n"); 655 return -ENODEV; 656 } 657 658 state = kzalloc(sizeof(*state), GFP_KERNEL); 659 if (!state) 660 return -ENOMEM; 661 662 sd = &state->sd; 663 v4l2_i2c_subdev_init(sd, client, &msp_ops); 664 665 state->v4l2_std = V4L2_STD_NTSC; 666 state->audmode = V4L2_TUNER_MODE_STEREO; 667 state->input = -1; 668 state->i2s_mode = 0; 669 init_waitqueue_head(&state->wq); 670 /* These are the reset input/output positions */ 671 state->route_in = MSP_INPUT_DEFAULT; 672 state->route_out = MSP_OUTPUT_DEFAULT; 673 674 state->rev1 = msp_read_dsp(client, 0x1e); 675 if (state->rev1 != -1) 676 state->rev2 = msp_read_dsp(client, 0x1f); 677 v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", 678 state->rev1, state->rev2); 679 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) { 680 v4l_dbg(1, msp_debug, client, 681 "not an msp3400 (cannot read chip version)\n"); 682 kfree(state); 683 return -ENODEV; 684 } 685 686 msp_family = ((state->rev1 >> 4) & 0x0f) + 3; 687 msp_product = (state->rev2 >> 8) & 0xff; 688 msp_prod_hi = msp_product / 10; 689 msp_prod_lo = msp_product % 10; 690 msp_revision = (state->rev1 & 0x0f) + '@'; 691 msp_hard = ((state->rev1 >> 8) & 0xff) + '@'; 692 msp_rom = state->rev2 & 0x1f; 693 /* Rev B=2, C=3, D=4, G=7 */ 694 state->ident = msp_family * 10000 + 4000 + msp_product * 10 + 695 msp_revision - '@'; 696 697 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */ 698 state->has_nicam = 699 msp_prod_hi == 1 || msp_prod_hi == 5; 700 /* Has radio support: was added with revision G */ 701 state->has_radio = 702 msp_revision >= 'G'; 703 /* Has headphones output: not for stripped down products */ 704 state->has_headphones = 705 msp_prod_lo < 5; 706 /* Has scart2 input: not in stripped down products of the '3' family */ 707 state->has_scart2 = 708 msp_family >= 4 || msp_prod_lo < 7; 709 /* Has scart3 input: not in stripped down products of the '3' family */ 710 state->has_scart3 = 711 msp_family >= 4 || msp_prod_lo < 5; 712 /* Has scart4 input: not in pre D revisions, not in stripped D revs */ 713 state->has_scart4 = 714 msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5); 715 /* Has scart2 output: not in stripped down products of 716 * the '3' family */ 717 state->has_scart2_out = 718 msp_family >= 4 || msp_prod_lo < 5; 719 /* Has scart2 a volume control? Not in pre-D revisions. */ 720 state->has_scart2_out_volume = 721 msp_revision > 'C' && state->has_scart2_out; 722 /* Has a configurable i2s out? */ 723 state->has_i2s_conf = 724 msp_revision >= 'G' && msp_prod_lo < 7; 725 /* Has subwoofer output: not in pre-D revs and not in stripped down 726 * products */ 727 state->has_subwoofer = 728 msp_revision >= 'D' && msp_prod_lo < 5; 729 /* Has soundprocessing (bass/treble/balance/loudness/equalizer): 730 * not in stripped down products */ 731 state->has_sound_processing = 732 msp_prod_lo < 7; 733 /* Has Virtual Dolby Surround: only in msp34x1 */ 734 state->has_virtual_dolby_surround = 735 msp_revision == 'G' && msp_prod_lo == 1; 736 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */ 737 state->has_dolby_pro_logic = 738 msp_revision == 'G' && msp_prod_lo == 2; 739 /* The msp343xG supports BTSC only and cannot do Automatic Standard 740 * Detection. */ 741 state->force_btsc = 742 msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3; 743 744 state->opmode = opmode; 745 if (state->opmode == OPMODE_AUTO) { 746 /* MSP revision G and up have both autodetect and autoselect */ 747 if (msp_revision >= 'G') 748 state->opmode = OPMODE_AUTOSELECT; 749 /* MSP revision D and up have autodetect */ 750 else if (msp_revision >= 'D') 751 state->opmode = OPMODE_AUTODETECT; 752 else 753 state->opmode = OPMODE_MANUAL; 754 } 755 756 hdl = &state->hdl; 757 v4l2_ctrl_handler_init(hdl, 6); 758 if (state->has_sound_processing) { 759 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 760 V4L2_CID_AUDIO_BASS, 0, 65535, 65535 / 100, 32768); 761 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 762 V4L2_CID_AUDIO_TREBLE, 0, 65535, 65535 / 100, 32768); 763 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 764 V4L2_CID_AUDIO_LOUDNESS, 0, 1, 1, 0); 765 } 766 state->volume = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 767 V4L2_CID_AUDIO_VOLUME, 0, 65535, 65535 / 100, 58880); 768 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 769 V4L2_CID_AUDIO_BALANCE, 0, 65535, 65535 / 100, 32768); 770 state->muted = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, 771 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); 772 sd->ctrl_handler = hdl; 773 if (hdl->error) { 774 int err = hdl->error; 775 776 v4l2_ctrl_handler_free(hdl); 777 kfree(state); 778 return err; 779 } 780 781 v4l2_ctrl_cluster(2, &state->volume); 782 v4l2_ctrl_handler_setup(hdl); 783 784 /* hello world :-) */ 785 v4l_info(client, "MSP%d4%02d%c-%c%d found @ 0x%x (%s)\n", 786 msp_family, msp_product, 787 msp_revision, msp_hard, msp_rom, 788 client->addr << 1, client->adapter->name); 789 v4l_info(client, "%s ", client->name); 790 if (state->has_nicam && state->has_radio) 791 printk(KERN_CONT "supports nicam and radio, "); 792 else if (state->has_nicam) 793 printk(KERN_CONT "supports nicam, "); 794 else if (state->has_radio) 795 printk(KERN_CONT "supports radio, "); 796 printk(KERN_CONT "mode is "); 797 798 /* version-specific initialization */ 799 switch (state->opmode) { 800 case OPMODE_MANUAL: 801 printk(KERN_CONT "manual"); 802 thread_func = msp3400c_thread; 803 break; 804 case OPMODE_AUTODETECT: 805 printk(KERN_CONT "autodetect"); 806 thread_func = msp3410d_thread; 807 break; 808 case OPMODE_AUTOSELECT: 809 printk(KERN_CONT "autodetect and autoselect"); 810 thread_func = msp34xxg_thread; 811 break; 812 } 813 printk(KERN_CONT "\n"); 814 815 /* startup control thread if needed */ 816 if (thread_func) { 817 state->kthread = kthread_run(thread_func, client, "msp34xx"); 818 819 if (IS_ERR(state->kthread)) 820 v4l_warn(client, "kernel_thread() failed\n"); 821 msp_wake_thread(client); 822 } 823 return 0; 824} 825 826static int msp_remove(struct i2c_client *client) 827{ 828 struct msp_state *state = to_state(i2c_get_clientdata(client)); 829 830 v4l2_device_unregister_subdev(&state->sd); 831 /* shutdown control thread */ 832 if (state->kthread) { 833 state->restart = 1; 834 kthread_stop(state->kthread); 835 } 836 msp_reset(client); 837 838 v4l2_ctrl_handler_free(&state->hdl); 839 kfree(state); 840 return 0; 841} 842 843/* ----------------------------------------------------------------------- */ 844 845static const struct i2c_device_id msp_id[] = { 846 { "msp3400", 0 }, 847 { } 848}; 849MODULE_DEVICE_TABLE(i2c, msp_id); 850 851static struct v4l2_i2c_driver_data v4l2_i2c_data = { 852 .name = "msp3400", 853 .probe = msp_probe, 854 .remove = msp_remove, 855 .suspend = msp_suspend, 856 .resume = msp_resume, 857 .id_table = msp_id, 858}; 859 860/* 861 * Overrides for Emacs so that we follow Linus's tabbing style. 862 * --------------------------------------------------------------------------- 863 * Local variables: 864 * c-basic-offset: 8 865 * End: 866 */ 867