ak4535.c (cf0dbba515415bb19b11f9323d5f7bebd7f24fd6) ak4535.c (b2c812e22de88bb79c290c0e718280f10b64a48d)
1/*
2 * ak4535.c -- AK4535 ALSA Soc Audio driver
3 *
4 * Copyright 2005 Openedhand Ltd.
5 *
6 * Author: Richard Purdie <richard@openedhand.com>
7 *
8 * Based on wm8753.c by Liam Girdwood

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14
15#include <linux/module.h>
16#include <linux/moduleparam.h>
17#include <linux/init.h>
18#include <linux/delay.h>
19#include <linux/pm.h>
20#include <linux/i2c.h>
21#include <linux/platform_device.h>
1/*
2 * ak4535.c -- AK4535 ALSA Soc Audio driver
3 *
4 * Copyright 2005 Openedhand Ltd.
5 *
6 * Author: Richard Purdie <richard@openedhand.com>
7 *
8 * Based on wm8753.c by Liam Girdwood

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14
15#include <linux/module.h>
16#include <linux/moduleparam.h>
17#include <linux/init.h>
18#include <linux/delay.h>
19#include <linux/pm.h>
20#include <linux/i2c.h>
21#include <linux/platform_device.h>
22#include <linux/slab.h>
23#include <sound/core.h>
24#include <sound/pcm.h>
25#include <sound/pcm_params.h>
26#include <sound/soc.h>
27#include <sound/soc-dapm.h>
28#include <sound/initval.h>
29
30#include "ak4535.h"

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297
298 return 0;
299}
300
301static int ak4535_set_dai_sysclk(struct snd_soc_dai *codec_dai,
302 int clk_id, unsigned int freq, int dir)
303{
304 struct snd_soc_codec *codec = codec_dai->codec;
22#include <sound/core.h>
23#include <sound/pcm.h>
24#include <sound/pcm_params.h>
25#include <sound/soc.h>
26#include <sound/soc-dapm.h>
27#include <sound/initval.h>
28
29#include "ak4535.h"

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296
297 return 0;
298}
299
300static int ak4535_set_dai_sysclk(struct snd_soc_dai *codec_dai,
301 int clk_id, unsigned int freq, int dir)
302{
303 struct snd_soc_codec *codec = codec_dai->codec;
305 struct ak4535_priv *ak4535 = codec->private_data;
304 struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec);
306
307 ak4535->sysclk = freq;
308 return 0;
309}
310
311static int ak4535_hw_params(struct snd_pcm_substream *substream,
312 struct snd_pcm_hw_params *params,
313 struct snd_soc_dai *dai)
314{
315 struct snd_soc_pcm_runtime *rtd = substream->private_data;
316 struct snd_soc_device *socdev = rtd->socdev;
317 struct snd_soc_codec *codec = socdev->card->codec;
305
306 ak4535->sysclk = freq;
307 return 0;
308}
309
310static int ak4535_hw_params(struct snd_pcm_substream *substream,
311 struct snd_pcm_hw_params *params,
312 struct snd_soc_dai *dai)
313{
314 struct snd_soc_pcm_runtime *rtd = substream->private_data;
315 struct snd_soc_device *socdev = rtd->socdev;
316 struct snd_soc_codec *codec = socdev->card->codec;
318 struct ak4535_priv *ak4535 = codec->private_data;
317 struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec);
319 u8 mode2 = ak4535_read_reg_cache(codec, AK4535_MODE2) & ~(0x3 << 5);
320 int rate = params_rate(params), fs = 256;
321
322 if (rate)
323 fs = ak4535->sysclk / rate;
324
325 /* set fs */
326 switch (fs) {

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595 return -ENOMEM;
596
597 ak4535 = kzalloc(sizeof(struct ak4535_priv), GFP_KERNEL);
598 if (ak4535 == NULL) {
599 kfree(codec);
600 return -ENOMEM;
601 }
602
318 u8 mode2 = ak4535_read_reg_cache(codec, AK4535_MODE2) & ~(0x3 << 5);
319 int rate = params_rate(params), fs = 256;
320
321 if (rate)
322 fs = ak4535->sysclk / rate;
323
324 /* set fs */
325 switch (fs) {

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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
603 codec->private_data = ak4535;
602 snd_soc_codec_set_drvdata(codec, ak4535);
604 socdev->card->codec = codec;
605 mutex_init(&codec->mutex);
606 INIT_LIST_HEAD(&codec->dapm_widgets);
607 INIT_LIST_HEAD(&codec->dapm_paths);
608
609 ak4535_socdev = socdev;
610 ret = -ENODEV;
611
612#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
613 if (setup->i2c_address) {
614 codec->hw_write = (hw_write_t)i2c_master_send;
615 ret = ak4535_add_i2c_device(pdev, setup);
616 }
617#endif
618
619 if (ret != 0) {
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)
612 if (setup->i2c_address) {
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) {
620 kfree(codec->private_data);
619 kfree(snd_soc_codec_get_drvdata(codec));
621 kfree(codec);
622 }
623 return ret;
624}
625
626/* power down chip */
627static int ak4535_remove(struct platform_device *pdev)
628{

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634
635 snd_soc_free_pcms(socdev);
636 snd_soc_dapm_free(socdev);
637#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
638 if (codec->control_data)
639 i2c_unregister_device(codec->control_data);
640 i2c_del_driver(&ak4535_i2c_driver);
641#endif
620 kfree(codec);
621 }
622 return ret;
623}
624
625/* power down chip */
626static int ak4535_remove(struct platform_device *pdev)
627{

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633
634 snd_soc_free_pcms(socdev);
635 snd_soc_dapm_free(socdev);
636#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);
640#endif
642 kfree(codec->private_data);
641 kfree(snd_soc_codec_get_drvdata(codec));
643 kfree(codec);
644
645 return 0;
646}
647
648struct snd_soc_codec_device soc_codec_dev_ak4535 = {
649 .probe = ak4535_probe,
650 .remove = ak4535_remove,

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643
644 return 0;
645}
646
647struct snd_soc_codec_device soc_codec_dev_ak4535 = {
648 .probe = ak4535_probe,
649 .remove = ak4535_remove,

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