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Diffstat (limited to 'ANDROID_3.4.5/sound/soc/codecs/ak4104.c')
-rw-r--r--ANDROID_3.4.5/sound/soc/codecs/ak4104.c258
1 files changed, 0 insertions, 258 deletions
diff --git a/ANDROID_3.4.5/sound/soc/codecs/ak4104.c b/ANDROID_3.4.5/sound/soc/codecs/ak4104.c
deleted file mode 100644
index ceb96ecf..00000000
--- a/ANDROID_3.4.5/sound/soc/codecs/ak4104.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/*
- * AK4104 ALSA SoC (ASoC) driver
- *
- * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <sound/core.h>
-#include <sound/soc.h>
-#include <sound/initval.h>
-#include <linux/spi/spi.h>
-#include <sound/asoundef.h>
-
-/* AK4104 registers addresses */
-#define AK4104_REG_CONTROL1 0x00
-#define AK4104_REG_RESERVED 0x01
-#define AK4104_REG_CONTROL2 0x02
-#define AK4104_REG_TX 0x03
-#define AK4104_REG_CHN_STATUS(x) ((x) + 0x04)
-#define AK4104_NUM_REGS 10
-
-#define AK4104_REG_MASK 0x1f
-#define AK4104_READ 0xc0
-#define AK4104_WRITE 0xe0
-#define AK4104_RESERVED_VAL 0x5b
-
-/* Bit masks for AK4104 registers */
-#define AK4104_CONTROL1_RSTN (1 << 0)
-#define AK4104_CONTROL1_PW (1 << 1)
-#define AK4104_CONTROL1_DIF0 (1 << 2)
-#define AK4104_CONTROL1_DIF1 (1 << 3)
-
-#define AK4104_CONTROL2_SEL0 (1 << 0)
-#define AK4104_CONTROL2_SEL1 (1 << 1)
-#define AK4104_CONTROL2_MODE (1 << 2)
-
-#define AK4104_TX_TXE (1 << 0)
-#define AK4104_TX_V (1 << 1)
-
-#define DRV_NAME "ak4104-codec"
-
-struct ak4104_private {
- struct regmap *regmap;
-};
-
-static int ak4104_set_dai_fmt(struct snd_soc_dai *codec_dai,
- unsigned int format)
-{
- struct snd_soc_codec *codec = codec_dai->codec;
- int val = 0;
- int ret;
-
- /* set DAI format */
- switch (format & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_RIGHT_J:
- break;
- case SND_SOC_DAIFMT_LEFT_J:
- val |= AK4104_CONTROL1_DIF0;
- break;
- case SND_SOC_DAIFMT_I2S:
- val |= AK4104_CONTROL1_DIF0 | AK4104_CONTROL1_DIF1;
- break;
- default:
- dev_err(codec->dev, "invalid dai format\n");
- return -EINVAL;
- }
-
- /* This device can only be slave */
- if ((format & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS)
- return -EINVAL;
-
- ret = snd_soc_update_bits(codec, AK4104_REG_CONTROL1,
- AK4104_CONTROL1_DIF0 | AK4104_CONTROL1_DIF1,
- val);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int ak4104_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_codec *codec = rtd->codec;
- int val = 0;
-
- /* set the IEC958 bits: consumer mode, no copyright bit */
- val |= IEC958_AES0_CON_NOT_COPYRIGHT;
- snd_soc_write(codec, AK4104_REG_CHN_STATUS(0), val);
-
- val = 0;
-
- switch (params_rate(params)) {
- case 44100:
- val |= IEC958_AES3_CON_FS_44100;
- break;
- case 48000:
- val |= IEC958_AES3_CON_FS_48000;
- break;
- case 32000:
- val |= IEC958_AES3_CON_FS_32000;
- break;
- default:
- dev_err(codec->dev, "unsupported sampling rate\n");
- return -EINVAL;
- }
-
- return snd_soc_write(codec, AK4104_REG_CHN_STATUS(3), val);
-}
-
-static const struct snd_soc_dai_ops ak4101_dai_ops = {
- .hw_params = ak4104_hw_params,
- .set_fmt = ak4104_set_dai_fmt,
-};
-
-static struct snd_soc_dai_driver ak4104_dai = {
- .name = "ak4104-hifi",
- .playback = {
- .stream_name = "Playback",
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_192000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_S24_3LE |
- SNDRV_PCM_FMTBIT_S24_LE
- },
- .ops = &ak4101_dai_ops,
-};
-
-static int ak4104_probe(struct snd_soc_codec *codec)
-{
- struct ak4104_private *ak4104 = snd_soc_codec_get_drvdata(codec);
- int ret;
-
- codec->control_data = ak4104->regmap;
- ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
- if (ret != 0)
- return ret;
-
- /* set power-up and non-reset bits */
- ret = snd_soc_update_bits(codec, AK4104_REG_CONTROL1,
- AK4104_CONTROL1_PW | AK4104_CONTROL1_RSTN,
- AK4104_CONTROL1_PW | AK4104_CONTROL1_RSTN);
- if (ret < 0)
- return ret;
-
- /* enable transmitter */
- ret = snd_soc_update_bits(codec, AK4104_REG_TX,
- AK4104_TX_TXE, AK4104_TX_TXE);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int ak4104_remove(struct snd_soc_codec *codec)
-{
- snd_soc_update_bits(codec, AK4104_REG_CONTROL1,
- AK4104_CONTROL1_PW | AK4104_CONTROL1_RSTN, 0);
-
- return 0;
-}
-
-static struct snd_soc_codec_driver soc_codec_device_ak4104 = {
- .probe = ak4104_probe,
- .remove = ak4104_remove,
-};
-
-static const struct regmap_config ak4104_regmap = {
- .reg_bits = 8,
- .val_bits = 8,
-
- .max_register = AK4104_NUM_REGS - 1,
- .read_flag_mask = AK4104_READ,
- .write_flag_mask = AK4104_WRITE,
-
- .cache_type = REGCACHE_RBTREE,
-};
-
-static int ak4104_spi_probe(struct spi_device *spi)
-{
- struct ak4104_private *ak4104;
- unsigned int val;
- int ret;
-
- spi->bits_per_word = 8;
- spi->mode = SPI_MODE_0;
- ret = spi_setup(spi);
- if (ret < 0)
- return ret;
-
- ak4104 = devm_kzalloc(&spi->dev, sizeof(struct ak4104_private),
- GFP_KERNEL);
- if (ak4104 == NULL)
- return -ENOMEM;
-
- ak4104->regmap = regmap_init_spi(spi, &ak4104_regmap);
- if (IS_ERR(ak4104->regmap)) {
- ret = PTR_ERR(ak4104->regmap);
- return ret;
- }
-
- /* read the 'reserved' register - according to the datasheet, it
- * should contain 0x5b. Not a good way to verify the presence of
- * the device, but there is no hardware ID register. */
- ret = regmap_read(ak4104->regmap, AK4104_REG_RESERVED, &val);
- if (ret != 0)
- goto err;
- if (val != AK4104_RESERVED_VAL) {
- ret = -ENODEV;
- goto err;
- }
-
- spi_set_drvdata(spi, ak4104);
-
- ret = snd_soc_register_codec(&spi->dev,
- &soc_codec_device_ak4104, &ak4104_dai, 1);
- if (ret != 0)
- goto err;
-
- return 0;
-
-err:
- regmap_exit(ak4104->regmap);
- return ret;
-}
-
-static int __devexit ak4104_spi_remove(struct spi_device *spi)
-{
- struct ak4104_private *ak4101 = spi_get_drvdata(spi);
- regmap_exit(ak4101->regmap);
- snd_soc_unregister_codec(&spi->dev);
- return 0;
-}
-
-static struct spi_driver ak4104_spi_driver = {
- .driver = {
- .name = DRV_NAME,
- .owner = THIS_MODULE,
- },
- .probe = ak4104_spi_probe,
- .remove = __devexit_p(ak4104_spi_remove),
-};
-
-module_spi_driver(ak4104_spi_driver);
-
-MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
-MODULE_DESCRIPTION("Asahi Kasei AK4104 ALSA SoC driver");
-MODULE_LICENSE("GPL");
-
generated by cgit (git 2.34.1) at 2024-12-22 01:17:57 +0000