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Diffstat (limited to 'ANDROID_3.4.5/sound/soc/codecs/tlv320aic26.c')
-rw-r--r--ANDROID_3.4.5/sound/soc/codecs/tlv320aic26.c458
1 files changed, 0 insertions, 458 deletions
diff --git a/ANDROID_3.4.5/sound/soc/codecs/tlv320aic26.c b/ANDROID_3.4.5/sound/soc/codecs/tlv320aic26.c
deleted file mode 100644
index 802064b5..00000000
--- a/ANDROID_3.4.5/sound/soc/codecs/tlv320aic26.c
+++ /dev/null
@@ -1,458 +0,0 @@
-/*
- * Texas Instruments TLV320AIC26 low power audio CODEC
- * ALSA SoC CODEC driver
- *
- * Copyright (C) 2008 Secret Lab Technologies Ltd.
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/pm.h>
-#include <linux/device.h>
-#include <linux/sysfs.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-#include <sound/initval.h>
-
-#include "tlv320aic26.h"
-
-MODULE_DESCRIPTION("ASoC TLV320AIC26 codec driver");
-MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>");
-MODULE_LICENSE("GPL");
-
-/* AIC26 driver private data */
-struct aic26 {
- struct spi_device *spi;
- struct snd_soc_codec codec;
- int master;
- int datfm;
- int mclk;
-
- /* Keyclick parameters */
- int keyclick_amplitude;
- int keyclick_freq;
- int keyclick_len;
-};
-
-/* ---------------------------------------------------------------------
- * Register access routines
- */
-static unsigned int aic26_reg_read(struct snd_soc_codec *codec,
- unsigned int reg)
-{
- struct aic26 *aic26 = snd_soc_codec_get_drvdata(codec);
- u16 *cache = codec->reg_cache;
- u16 cmd, value;
- u8 buffer[2];
- int rc;
-
- if (reg >= AIC26_NUM_REGS) {
- WARN_ON_ONCE(1);
- return 0;
- }
-
- /* Do SPI transfer; first 16bits are command; remaining is
- * register contents */
- cmd = AIC26_READ_COMMAND_WORD(reg);
- buffer[0] = (cmd >> 8) & 0xff;
- buffer[1] = cmd & 0xff;
- rc = spi_write_then_read(aic26->spi, buffer, 2, buffer, 2);
- if (rc) {
- dev_err(&aic26->spi->dev, "AIC26 reg read error\n");
- return -EIO;
- }
- value = (buffer[0] << 8) | buffer[1];
-
- /* Update the cache before returning with the value */
- cache[reg] = value;
- return value;
-}
-
-static unsigned int aic26_reg_read_cache(struct snd_soc_codec *codec,
- unsigned int reg)
-{
- u16 *cache = codec->reg_cache;
-
- if (reg >= AIC26_NUM_REGS) {
- WARN_ON_ONCE(1);
- return 0;
- }
-
- return cache[reg];
-}
-
-static int aic26_reg_write(struct snd_soc_codec *codec, unsigned int reg,
- unsigned int value)
-{
- struct aic26 *aic26 = snd_soc_codec_get_drvdata(codec);
- u16 *cache = codec->reg_cache;
- u16 cmd;
- u8 buffer[4];
- int rc;
-
- if (reg >= AIC26_NUM_REGS) {
- WARN_ON_ONCE(1);
- return -EINVAL;
- }
-
- /* Do SPI transfer; first 16bits are command; remaining is data
- * to write into register */
- cmd = AIC26_WRITE_COMMAND_WORD(reg);
- buffer[0] = (cmd >> 8) & 0xff;
- buffer[1] = cmd & 0xff;
- buffer[2] = value >> 8;
- buffer[3] = value;
- rc = spi_write(aic26->spi, buffer, 4);
- if (rc) {
- dev_err(&aic26->spi->dev, "AIC26 reg read error\n");
- return -EIO;
- }
-
- /* update cache before returning */
- cache[reg] = value;
- return 0;
-}
-
-/* ---------------------------------------------------------------------
- * Digital Audio Interface Operations
- */
-static int aic26_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;
- struct aic26 *aic26 = snd_soc_codec_get_drvdata(codec);
- int fsref, divisor, wlen, pval, jval, dval, qval;
- u16 reg;
-
- dev_dbg(&aic26->spi->dev, "aic26_hw_params(substream=%p, params=%p)\n",
- substream, params);
- dev_dbg(&aic26->spi->dev, "rate=%i format=%i\n", params_rate(params),
- params_format(params));
-
- switch (params_rate(params)) {
- case 8000: fsref = 48000; divisor = AIC26_DIV_6; break;
- case 11025: fsref = 44100; divisor = AIC26_DIV_4; break;
- case 12000: fsref = 48000; divisor = AIC26_DIV_4; break;
- case 16000: fsref = 48000; divisor = AIC26_DIV_3; break;
- case 22050: fsref = 44100; divisor = AIC26_DIV_2; break;
- case 24000: fsref = 48000; divisor = AIC26_DIV_2; break;
- case 32000: fsref = 48000; divisor = AIC26_DIV_1_5; break;
- case 44100: fsref = 44100; divisor = AIC26_DIV_1; break;
- case 48000: fsref = 48000; divisor = AIC26_DIV_1; break;
- default:
- dev_dbg(&aic26->spi->dev, "bad rate\n"); return -EINVAL;
- }
-
- /* select data word length */
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S8: wlen = AIC26_WLEN_16; break;
- case SNDRV_PCM_FORMAT_S16_BE: wlen = AIC26_WLEN_16; break;
- case SNDRV_PCM_FORMAT_S24_BE: wlen = AIC26_WLEN_24; break;
- case SNDRV_PCM_FORMAT_S32_BE: wlen = AIC26_WLEN_32; break;
- default:
- dev_dbg(&aic26->spi->dev, "bad format\n"); return -EINVAL;
- }
-
- /**
- * Configure PLL
- * fsref = (mclk * PLLM) / 2048
- * where PLLM = J.DDDD (DDDD register ranges from 0 to 9999, decimal)
- */
- pval = 1;
- /* compute J portion of multiplier */
- jval = fsref / (aic26->mclk / 2048);
- /* compute fractional DDDD component of multiplier */
- dval = fsref - (jval * (aic26->mclk / 2048));
- dval = (10000 * dval) / (aic26->mclk / 2048);
- dev_dbg(&aic26->spi->dev, "Setting PLLM to %d.%04d\n", jval, dval);
- qval = 0;
- reg = 0x8000 | qval << 11 | pval << 8 | jval << 2;
- aic26_reg_write(codec, AIC26_REG_PLL_PROG1, reg);
- reg = dval << 2;
- aic26_reg_write(codec, AIC26_REG_PLL_PROG2, reg);
-
- /* Audio Control 3 (master mode, fsref rate) */
- reg = aic26_reg_read_cache(codec, AIC26_REG_AUDIO_CTRL3);
- reg &= ~0xf800;
- if (aic26->master)
- reg |= 0x0800;
- if (fsref == 48000)
- reg |= 0x2000;
- aic26_reg_write(codec, AIC26_REG_AUDIO_CTRL3, reg);
-
- /* Audio Control 1 (FSref divisor) */
- reg = aic26_reg_read_cache(codec, AIC26_REG_AUDIO_CTRL1);
- reg &= ~0x0fff;
- reg |= wlen | aic26->datfm | (divisor << 3) | divisor;
- aic26_reg_write(codec, AIC26_REG_AUDIO_CTRL1, reg);
-
- return 0;
-}
-
-/**
- * aic26_mute - Mute control to reduce noise when changing audio format
- */
-static int aic26_mute(struct snd_soc_dai *dai, int mute)
-{
- struct snd_soc_codec *codec = dai->codec;
- struct aic26 *aic26 = snd_soc_codec_get_drvdata(codec);
- u16 reg = aic26_reg_read_cache(codec, AIC26_REG_DAC_GAIN);
-
- dev_dbg(&aic26->spi->dev, "aic26_mute(dai=%p, mute=%i)\n",
- dai, mute);
-
- if (mute)
- reg |= 0x8080;
- else
- reg &= ~0x8080;
- aic26_reg_write(codec, AIC26_REG_DAC_GAIN, reg);
-
- return 0;
-}
-
-static int aic26_set_sysclk(struct snd_soc_dai *codec_dai,
- int clk_id, unsigned int freq, int dir)
-{
- struct snd_soc_codec *codec = codec_dai->codec;
- struct aic26 *aic26 = snd_soc_codec_get_drvdata(codec);
-
- dev_dbg(&aic26->spi->dev, "aic26_set_sysclk(dai=%p, clk_id==%i,"
- " freq=%i, dir=%i)\n",
- codec_dai, clk_id, freq, dir);
-
- /* MCLK needs to fall between 2MHz and 50 MHz */
- if ((freq < 2000000) || (freq > 50000000))
- return -EINVAL;
-
- aic26->mclk = freq;
- return 0;
-}
-
-static int aic26_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
-{
- struct snd_soc_codec *codec = codec_dai->codec;
- struct aic26 *aic26 = snd_soc_codec_get_drvdata(codec);
-
- dev_dbg(&aic26->spi->dev, "aic26_set_fmt(dai=%p, fmt==%i)\n",
- codec_dai, fmt);
-
- /* set master/slave audio interface */
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM: aic26->master = 1; break;
- case SND_SOC_DAIFMT_CBS_CFS: aic26->master = 0; break;
- default:
- dev_dbg(&aic26->spi->dev, "bad master\n"); return -EINVAL;
- }
-
- /* interface format */
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_I2S: aic26->datfm = AIC26_DATFM_I2S; break;
- case SND_SOC_DAIFMT_DSP_A: aic26->datfm = AIC26_DATFM_DSP; break;
- case SND_SOC_DAIFMT_RIGHT_J: aic26->datfm = AIC26_DATFM_RIGHTJ; break;
- case SND_SOC_DAIFMT_LEFT_J: aic26->datfm = AIC26_DATFM_LEFTJ; break;
- default:
- dev_dbg(&aic26->spi->dev, "bad format\n"); return -EINVAL;
- }
-
- return 0;
-}
-
-/* ---------------------------------------------------------------------
- * Digital Audio Interface Definition
- */
-#define AIC26_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
- SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
- SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
- SNDRV_PCM_RATE_48000)
-#define AIC26_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_BE |\
- SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S32_BE)
-
-static const struct snd_soc_dai_ops aic26_dai_ops = {
- .hw_params = aic26_hw_params,
- .digital_mute = aic26_mute,
- .set_sysclk = aic26_set_sysclk,
- .set_fmt = aic26_set_fmt,
-};
-
-static struct snd_soc_dai_driver aic26_dai = {
- .name = "tlv320aic26-hifi",
- .playback = {
- .stream_name = "Playback",
- .channels_min = 2,
- .channels_max = 2,
- .rates = AIC26_RATES,
- .formats = AIC26_FORMATS,
- },
- .capture = {
- .stream_name = "Capture",
- .channels_min = 2,
- .channels_max = 2,
- .rates = AIC26_RATES,
- .formats = AIC26_FORMATS,
- },
- .ops = &aic26_dai_ops,
-};
-
-/* ---------------------------------------------------------------------
- * ALSA controls
- */
-static const char *aic26_capture_src_text[] = {"Mic", "Aux"};
-static const struct soc_enum aic26_capture_src_enum =
- SOC_ENUM_SINGLE(AIC26_REG_AUDIO_CTRL1, 12, 2, aic26_capture_src_text);
-
-static const struct snd_kcontrol_new aic26_snd_controls[] = {
- /* Output */
- SOC_DOUBLE("PCM Playback Volume", AIC26_REG_DAC_GAIN, 8, 0, 0x7f, 1),
- SOC_DOUBLE("PCM Playback Switch", AIC26_REG_DAC_GAIN, 15, 7, 1, 1),
- SOC_SINGLE("PCM Capture Volume", AIC26_REG_ADC_GAIN, 8, 0x7f, 0),
- SOC_SINGLE("PCM Capture Mute", AIC26_REG_ADC_GAIN, 15, 1, 1),
- SOC_SINGLE("Keyclick activate", AIC26_REG_AUDIO_CTRL2, 15, 0x1, 0),
- SOC_SINGLE("Keyclick amplitude", AIC26_REG_AUDIO_CTRL2, 12, 0x7, 0),
- SOC_SINGLE("Keyclick frequency", AIC26_REG_AUDIO_CTRL2, 8, 0x7, 0),
- SOC_SINGLE("Keyclick period", AIC26_REG_AUDIO_CTRL2, 4, 0xf, 0),
- SOC_ENUM("Capture Source", aic26_capture_src_enum),
-};
-
-/* ---------------------------------------------------------------------
- * SPI device portion of driver: sysfs files for debugging
- */
-
-static ssize_t aic26_keyclick_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct aic26 *aic26 = dev_get_drvdata(dev);
- int val, amp, freq, len;
-
- val = aic26_reg_read_cache(&aic26->codec, AIC26_REG_AUDIO_CTRL2);
- amp = (val >> 12) & 0x7;
- freq = (125 << ((val >> 8) & 0x7)) >> 1;
- len = 2 * (1 + ((val >> 4) & 0xf));
-
- return sprintf(buf, "amp=%x freq=%iHz len=%iclks\n", amp, freq, len);
-}
-
-/* Any write to the keyclick attribute will trigger the keyclick event */
-static ssize_t aic26_keyclick_set(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct aic26 *aic26 = dev_get_drvdata(dev);
- int val;
-
- val = aic26_reg_read_cache(&aic26->codec, AIC26_REG_AUDIO_CTRL2);
- val |= 0x8000;
- aic26_reg_write(&aic26->codec, AIC26_REG_AUDIO_CTRL2, val);
-
- return count;
-}
-
-static DEVICE_ATTR(keyclick, 0644, aic26_keyclick_show, aic26_keyclick_set);
-
-/* ---------------------------------------------------------------------
- * SoC CODEC portion of driver: probe and release routines
- */
-static int aic26_probe(struct snd_soc_codec *codec)
-{
- int ret, err, i, reg;
-
- dev_info(codec->dev, "Probing AIC26 SoC CODEC driver\n");
-
- /* Reset the codec to power on defaults */
- aic26_reg_write(codec, AIC26_REG_RESET, 0xBB00);
-
- /* Power up CODEC */
- aic26_reg_write(codec, AIC26_REG_POWER_CTRL, 0);
-
- /* Audio Control 3 (master mode, fsref rate) */
- reg = aic26_reg_read(codec, AIC26_REG_AUDIO_CTRL3);
- reg &= ~0xf800;
- reg |= 0x0800; /* set master mode */
- aic26_reg_write(codec, AIC26_REG_AUDIO_CTRL3, reg);
-
- /* Fill register cache */
- for (i = 0; i < codec->driver->reg_cache_size; i++)
- aic26_reg_read(codec, i);
-
- /* Register the sysfs files for debugging */
- /* Create SysFS files */
- ret = device_create_file(codec->dev, &dev_attr_keyclick);
- if (ret)
- dev_info(codec->dev, "error creating sysfs files\n");
-
- /* register controls */
- dev_dbg(codec->dev, "Registering controls\n");
- err = snd_soc_add_codec_controls(codec, aic26_snd_controls,
- ARRAY_SIZE(aic26_snd_controls));
- WARN_ON(err < 0);
-
- return 0;
-}
-
-static struct snd_soc_codec_driver aic26_soc_codec_dev = {
- .probe = aic26_probe,
- .read = aic26_reg_read,
- .write = aic26_reg_write,
- .reg_cache_size = AIC26_NUM_REGS,
- .reg_word_size = sizeof(u16),
-};
-
-/* ---------------------------------------------------------------------
- * SPI device portion of driver: probe and release routines and SPI
- * driver registration.
- */
-static int aic26_spi_probe(struct spi_device *spi)
-{
- struct aic26 *aic26;
- int ret;
-
- dev_dbg(&spi->dev, "probing tlv320aic26 spi device\n");
-
- /* Allocate driver data */
- aic26 = devm_kzalloc(&spi->dev, sizeof *aic26, GFP_KERNEL);
- if (!aic26)
- return -ENOMEM;
-
- /* Initialize the driver data */
- aic26->spi = spi;
- dev_set_drvdata(&spi->dev, aic26);
- aic26->master = 1;
-
- ret = snd_soc_register_codec(&spi->dev,
- &aic26_soc_codec_dev, &aic26_dai, 1);
- return ret;
-}
-
-static int aic26_spi_remove(struct spi_device *spi)
-{
- snd_soc_unregister_codec(&spi->dev);
- return 0;
-}
-
-static struct spi_driver aic26_spi = {
- .driver = {
- .name = "tlv320aic26-codec",
- .owner = THIS_MODULE,
- },
- .probe = aic26_spi_probe,
- .remove = aic26_spi_remove,
-};
-
-static int __init aic26_init(void)
-{
- return spi_register_driver(&aic26_spi);
-}
-module_init(aic26_init);
-
-static void __exit aic26_exit(void)
-{
- spi_unregister_driver(&aic26_spi);
-}
-module_exit(aic26_exit);