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Diffstat (limited to 'sound/soc/codecs/ak4535.c')
-rw-r--r--sound/soc/codecs/ak4535.c236
1 files changed, 61 insertions, 175 deletions
diff --git a/sound/soc/codecs/ak4535.c b/sound/soc/codecs/ak4535.c
index d4253675b2d3..cd88c8f32a38 100644
--- a/sound/soc/codecs/ak4535.c
+++ b/sound/soc/codecs/ak4535.c
@@ -31,11 +31,11 @@
31 31
32#define AK4535_VERSION "0.3" 32#define AK4535_VERSION "0.3"
33 33
34struct snd_soc_codec_device soc_codec_dev_ak4535;
35
36/* codec private data */ 34/* codec private data */
37struct ak4535_priv { 35struct ak4535_priv {
38 unsigned int sysclk; 36 unsigned int sysclk;
37 enum snd_soc_control_type control_type;
38 void *control_data;
39}; 39};
40 40
41/* 41/*
@@ -313,8 +313,7 @@ static int ak4535_hw_params(struct snd_pcm_substream *substream,
313 struct snd_soc_dai *dai) 313 struct snd_soc_dai *dai)
314{ 314{
315 struct snd_soc_pcm_runtime *rtd = substream->private_data; 315 struct snd_soc_pcm_runtime *rtd = substream->private_data;
316 struct snd_soc_device *socdev = rtd->socdev; 316 struct snd_soc_codec *codec = rtd->codec;
317 struct snd_soc_codec *codec = socdev->card->codec;
318 struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); 317 struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec);
319 u8 mode2 = ak4535_read_reg_cache(codec, AK4535_MODE2) & ~(0x3 << 5); 318 u8 mode2 = ak4535_read_reg_cache(codec, AK4535_MODE2) & ~(0x3 << 5);
320 int rate = params_rate(params), fs = 256; 319 int rate = params_rate(params), fs = 256;
@@ -378,14 +377,16 @@ static int ak4535_mute(struct snd_soc_dai *dai, int mute)
378static int ak4535_set_bias_level(struct snd_soc_codec *codec, 377static int ak4535_set_bias_level(struct snd_soc_codec *codec,
379 enum snd_soc_bias_level level) 378 enum snd_soc_bias_level level)
380{ 379{
381 u16 i; 380 u16 i, mute_reg;
382 381
383 switch (level) { 382 switch (level) {
384 case SND_SOC_BIAS_ON: 383 case SND_SOC_BIAS_ON:
385 ak4535_mute(codec->dai, 0); 384 mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC) & 0xffdf;
385 ak4535_write(codec, AK4535_DAC, mute_reg);
386 break; 386 break;
387 case SND_SOC_BIAS_PREPARE: 387 case SND_SOC_BIAS_PREPARE:
388 ak4535_mute(codec->dai, 1); 388 mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC) & 0xffdf;
389 ak4535_write(codec, AK4535_DAC, mute_reg | 0x20);
389 break; 390 break;
390 case SND_SOC_BIAS_STANDBY: 391 case SND_SOC_BIAS_STANDBY:
391 i = ak4535_read_reg_cache(codec, AK4535_PM1); 392 i = ak4535_read_reg_cache(codec, AK4535_PM1);
@@ -413,8 +414,8 @@ static struct snd_soc_dai_ops ak4535_dai_ops = {
413 .set_sysclk = ak4535_set_dai_sysclk, 414 .set_sysclk = ak4535_set_dai_sysclk,
414}; 415};
415 416
416struct snd_soc_dai ak4535_dai = { 417static struct snd_soc_dai_driver ak4535_dai = {
417 .name = "AK4535", 418 .name = "ak4535-hifi",
418 .playback = { 419 .playback = {
419 .stream_name = "Playback", 420 .stream_name = "Playback",
420 .channels_min = 1, 421 .channels_min = 1,
@@ -429,54 +430,27 @@ struct snd_soc_dai ak4535_dai = {
429 .formats = SNDRV_PCM_FMTBIT_S16_LE,}, 430 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
430 .ops = &ak4535_dai_ops, 431 .ops = &ak4535_dai_ops,
431}; 432};
432EXPORT_SYMBOL_GPL(ak4535_dai);
433 433
434static int ak4535_suspend(struct platform_device *pdev, pm_message_t state) 434static int ak4535_suspend(struct snd_soc_codec *codec, pm_message_t state)
435{ 435{
436 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
437 struct snd_soc_codec *codec = socdev->card->codec;
438
439 ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF); 436 ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF);
440 return 0; 437 return 0;
441} 438}
442 439
443static int ak4535_resume(struct platform_device *pdev) 440static int ak4535_resume(struct snd_soc_codec *codec)
444{ 441{
445 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
446 struct snd_soc_codec *codec = socdev->card->codec;
447 ak4535_sync(codec); 442 ak4535_sync(codec);
448 ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 443 ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
449 return 0; 444 return 0;
450} 445}
451 446
452/* 447static int ak4535_probe(struct snd_soc_codec *codec)
453 * initialise the AK4535 driver
454 * register the mixer and dsp interfaces with the kernel
455 */
456static int ak4535_init(struct snd_soc_device *socdev)
457{ 448{
458 struct snd_soc_codec *codec = socdev->card->codec; 449 struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec);
459 int ret = 0;
460 450
461 codec->name = "AK4535"; 451 printk(KERN_INFO "AK4535 Audio Codec %s", AK4535_VERSION);
462 codec->owner = THIS_MODULE;
463 codec->read = ak4535_read_reg_cache;
464 codec->write = ak4535_write;
465 codec->set_bias_level = ak4535_set_bias_level;
466 codec->dai = &ak4535_dai;
467 codec->num_dai = 1;
468 codec->reg_cache_size = ARRAY_SIZE(ak4535_reg);
469 codec->reg_cache = kmemdup(ak4535_reg, sizeof(ak4535_reg), GFP_KERNEL);
470
471 if (codec->reg_cache == NULL)
472 return -ENOMEM;
473 452
474 /* register pcms */ 453 codec->control_data = ak4535->control_data;
475 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
476 if (ret < 0) {
477 printk(KERN_ERR "ak4535: failed to create pcms\n");
478 goto pcm_err;
479 }
480 454
481 /* power on device */ 455 /* power on device */
482 ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 456 ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
@@ -485,39 +459,55 @@ static int ak4535_init(struct snd_soc_device *socdev)
485 ARRAY_SIZE(ak4535_snd_controls)); 459 ARRAY_SIZE(ak4535_snd_controls));
486 ak4535_add_widgets(codec); 460 ak4535_add_widgets(codec);
487 461
488 return ret; 462 return 0;
489 463}
490pcm_err:
491 kfree(codec->reg_cache);
492 464
493 return ret; 465/* power down chip */
466static int ak4535_remove(struct snd_soc_codec *codec)
467{
468 ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF);
469 return 0;
494} 470}
495 471
496static struct snd_soc_device *ak4535_socdev; 472static struct snd_soc_codec_driver soc_codec_dev_ak4535 = {
473 .probe = ak4535_probe,
474 .remove = ak4535_remove,
475 .suspend = ak4535_suspend,
476 .resume = ak4535_resume,
477 .read = ak4535_read_reg_cache,
478 .write = ak4535_write,
479 .set_bias_level = ak4535_set_bias_level,
480 .reg_cache_size = ARRAY_SIZE(ak4535_reg),
481 .reg_word_size = sizeof(u8),
482 .reg_cache_default = ak4535_reg,
483};
497 484
498#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 485#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
499 486static __devinit int ak4535_i2c_probe(struct i2c_client *i2c,
500static int ak4535_i2c_probe(struct i2c_client *i2c, 487 const struct i2c_device_id *id)
501 const struct i2c_device_id *id)
502{ 488{
503 struct snd_soc_device *socdev = ak4535_socdev; 489 struct ak4535_priv *ak4535;
504 struct snd_soc_codec *codec = socdev->card->codec;
505 int ret; 490 int ret;
506 491
507 i2c_set_clientdata(i2c, codec); 492 ak4535 = kzalloc(sizeof(struct ak4535_priv), GFP_KERNEL);
508 codec->control_data = i2c; 493 if (ak4535 == NULL)
494 return -ENOMEM;
509 495
510 ret = ak4535_init(socdev); 496 i2c_set_clientdata(i2c, ak4535);
511 if (ret < 0) 497 ak4535->control_data = i2c;
512 printk(KERN_ERR "failed to initialise AK4535\n"); 498 ak4535->control_type = SND_SOC_I2C;
513 499
500 ret = snd_soc_register_codec(&i2c->dev,
501 &soc_codec_dev_ak4535, &ak4535_dai, 1);
502 if (ret < 0)
503 kfree(ak4535);
514 return ret; 504 return ret;
515} 505}
516 506
517static int ak4535_i2c_remove(struct i2c_client *client) 507static __devexit int ak4535_i2c_remove(struct i2c_client *client)
518{ 508{
519 struct snd_soc_codec *codec = i2c_get_clientdata(client); 509 snd_soc_unregister_codec(&client->dev);
520 kfree(codec->reg_cache); 510 kfree(i2c_get_clientdata(client));
521 return 0; 511 return 0;
522} 512}
523 513
@@ -529,138 +519,34 @@ MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id);
529 519
530static struct i2c_driver ak4535_i2c_driver = { 520static struct i2c_driver ak4535_i2c_driver = {
531 .driver = { 521 .driver = {
532 .name = "AK4535 I2C Codec", 522 .name = "ak4535-codec",
533 .owner = THIS_MODULE, 523 .owner = THIS_MODULE,
534 }, 524 },
535 .probe = ak4535_i2c_probe, 525 .probe = ak4535_i2c_probe,
536 .remove = ak4535_i2c_remove, 526 .remove = __devexit_p(ak4535_i2c_remove),
537 .id_table = ak4535_i2c_id, 527 .id_table = ak4535_i2c_id,
538}; 528};
539
540static int ak4535_add_i2c_device(struct platform_device *pdev,
541 const struct ak4535_setup_data *setup)
542{
543 struct i2c_board_info info;
544 struct i2c_adapter *adapter;
545 struct i2c_client *client;
546 int ret;
547
548 ret = i2c_add_driver(&ak4535_i2c_driver);
549 if (ret != 0) {
550 dev_err(&pdev->dev, "can't add i2c driver\n");
551 return ret;
552 }
553
554 memset(&info, 0, sizeof(struct i2c_board_info));
555 info.addr = setup->i2c_address;
556 strlcpy(info.type, "ak4535", I2C_NAME_SIZE);
557
558 adapter = i2c_get_adapter(setup->i2c_bus);
559 if (!adapter) {
560 dev_err(&pdev->dev, "can't get i2c adapter %d\n",
561 setup->i2c_bus);
562 goto err_driver;
563 }
564
565 client = i2c_new_device(adapter, &info);
566 i2c_put_adapter(adapter);
567 if (!client) {
568 dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
569 (unsigned int)info.addr);
570 goto err_driver;
571 }
572
573 return 0;
574
575err_driver:
576 i2c_del_driver(&ak4535_i2c_driver);
577 return -ENODEV;
578}
579#endif 529#endif
580 530
581static int ak4535_probe(struct platform_device *pdev) 531static int __init ak4535_modinit(void)
582{ 532{
583 struct snd_soc_device *socdev = platform_get_drvdata(pdev); 533 int ret = 0;
584 struct ak4535_setup_data *setup;
585 struct snd_soc_codec *codec;
586 struct ak4535_priv *ak4535;
587 int ret;
588
589 printk(KERN_INFO "AK4535 Audio Codec %s", AK4535_VERSION);
590
591 setup = socdev->codec_data;
592 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
593 if (codec == NULL)
594 return -ENOMEM;
595
596 ak4535 = kzalloc(sizeof(struct ak4535_priv), GFP_KERNEL);
597 if (ak4535 == NULL) {
598 kfree(codec);
599 return -ENOMEM;
600 }
601
602 snd_soc_codec_set_drvdata(codec, ak4535);
603 socdev->card->codec = codec;
604 mutex_init(&codec->mutex);
605 INIT_LIST_HEAD(&codec->dapm_widgets);
606 INIT_LIST_HEAD(&codec->dapm_paths);
607
608 ak4535_socdev = socdev;
609 ret = -ENODEV;
610
611#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 534#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
612 if (setup->i2c_address) { 535 ret = i2c_add_driver(&ak4535_i2c_driver);
613 codec->hw_write = (hw_write_t)i2c_master_send;
614 ret = ak4535_add_i2c_device(pdev, setup);
615 }
616#endif
617
618 if (ret != 0) { 536 if (ret != 0) {
619 kfree(snd_soc_codec_get_drvdata(codec)); 537 printk(KERN_ERR "Failed to register AK4535 I2C driver: %d\n",
620 kfree(codec); 538 ret);
621 } 539 }
540#endif
622 return ret; 541 return ret;
623} 542}
543module_init(ak4535_modinit);
624 544
625/* power down chip */ 545static void __exit ak4535_exit(void)
626static int ak4535_remove(struct platform_device *pdev)
627{ 546{
628 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
629 struct snd_soc_codec *codec = socdev->card->codec;
630
631 if (codec->control_data)
632 ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF);
633
634 snd_soc_free_pcms(socdev);
635 snd_soc_dapm_free(socdev);
636#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 547#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
637 if (codec->control_data)
638 i2c_unregister_device(codec->control_data);
639 i2c_del_driver(&ak4535_i2c_driver); 548 i2c_del_driver(&ak4535_i2c_driver);
640#endif 549#endif
641 kfree(snd_soc_codec_get_drvdata(codec));
642 kfree(codec);
643
644 return 0;
645}
646
647struct snd_soc_codec_device soc_codec_dev_ak4535 = {
648 .probe = ak4535_probe,
649 .remove = ak4535_remove,
650 .suspend = ak4535_suspend,
651 .resume = ak4535_resume,
652};
653EXPORT_SYMBOL_GPL(soc_codec_dev_ak4535);
654
655static int __init ak4535_modinit(void)
656{
657 return snd_soc_register_dai(&ak4535_dai);
658}
659module_init(ak4535_modinit);
660
661static void __exit ak4535_exit(void)
662{
663 snd_soc_unregister_dai(&ak4535_dai);
664} 550}
665module_exit(ak4535_exit); 551module_exit(ak4535_exit);
666 552