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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Programming the mspx4xx sound processor family4 *5 * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>6 *7 * what works and what doesn't:8 *9 * AM-Mono10 * Support for Hauppauge cards added (decoding handled by tuner) added by11 * Frederic Crozat <fcrozat@mail.dotcom.fr>12 *13 * FM-Mono14 * 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 autodetect19 *20 * FM-Stereo (satellite)21 * should work, no autodetect (i.e. default is mono, but you can22 * 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 by26 * Pekka Pietikainen <pp@netppl.fi>27 *28 * TODO:29 * - better SAT support30 *31 * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch)32 * using soundcore instead of OSS33 */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/bilingual66 (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 0x0091/* demodulator unit subaddress */92#define I2C_MSP_DEM 0x1093/* DSP unit subaddress */94#define I2C_MSP_DSP 0x1295 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_off113 },114 {115 .addr = client->addr,116 .flags = I2C_M_IGNORE_NAK,117 .len = 3,118 .buf = reset_on119 },120 };121 struct i2c_msg test[2] = {122 {123 .addr = client->addr,124 .len = 3,125 .buf = write126 },127 {128 .addr = client->addr,129 .flags = I2C_M_RD,130 .len = 2,131 .buf = read132 },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 = write155 },156 {157 .addr = client->addr,158 .flags = I2C_M_RD,159 .len = 2,160 .buf = read161 }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 input238 * 1 0 0 - SCART 2 to DSP input239 * 1 1 1 - Mute DSP input240 *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 Output245 * 1 1 0 - SCART 1 DA to SCART 1 Output246 * 0 0 1 - SCART 2 DA to SCART 1 Output247 * 0 1 1 - SCART 1 Input to SCART 1 Output248 * 1 1 1 - Mute SCART 1 Output249 *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 Output253 * 1 0 0 - MONO input to SCART 2 Output254 * 0 0 1 - SCART 2 DA to SCART 2 Output255 * 0 1 1 - SCART 2 Input to SCART 2 Output256 * 1 1 0 - Mute SCART 2 Output257 *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 } else288 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_SLEEP598static 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#endif614 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#endif673 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#endif701 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 of753 * 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 down763 * 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 Standard777 * 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_MANUAL783 || 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 else791 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" },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