+++ /dev/null
-/*
- * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/delay.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/initval.h>
-#include <sound/soc-dapm.h>
-#include <sound/soc.h>
-
-#define JZ_REG_CODEC_1 0x0
-#define JZ_REG_CODEC_2 0x1
-
-#define JZ_CODEC_1_LINE_ENABLE BIT(29)
-#define JZ_CODEC_1_MIC_ENABLE BIT(28)
-#define JZ_CODEC_1_SW1_ENABLE BIT(27)
-#define JZ_CODEC_1_ADC_ENABLE BIT(26)
-#define JZ_CODEC_1_SW2_ENABLE BIT(25)
-#define JZ_CODEC_1_DAC_ENABLE BIT(24)
-#define JZ_CODEC_1_VREF_DISABLE BIT(20)
-#define JZ_CODEC_1_VREF_AMP_DISABLE BIT(19)
-#define JZ_CODEC_1_VREF_PULL_DOWN BIT(18)
-#define JZ_CODEC_1_VREF_LOW_CURRENT BIT(17)
-#define JZ_CODEC_1_VREF_HIGH_CURRENT BIT(16)
-#define JZ_CODEC_1_HEADPHONE_DISABLE BIT(14)
-#define JZ_CODEC_1_HEADPHONE_AMP_CHANGE_ANY BIT(13)
-#define JZ_CODEC_1_HEADPHONE_CHANGE BIT(12)
-#define JZ_CODEC_1_HEADPHONE_PULL_DOWN_M BIT(11)
-#define JZ_CODEC_1_HEADPHONE_PULL_DOWN_R BIT(10)
-#define JZ_CODEC_1_HEADPHONE_POWER_DOWN_M BIT(9)
-#define JZ_CODEC_1_HEADPHONE_POWER_DOWN BIT(8)
-#define JZ_CODEC_1_SUSPEND BIT(1)
-#define JZ_CODEC_1_RESET BIT(0)
-
-#define JZ_CODEC_1_LINE_ENABLE_OFFSET 29
-#define JZ_CODEC_1_MIC_ENABLE_OFFSET 28
-#define JZ_CODEC_1_SW1_ENABLE_OFFSET 27
-#define JZ_CODEC_1_ADC_ENABLE_OFFSET 26
-#define JZ_CODEC_1_SW2_ENABLE_OFFSET 25
-#define JZ_CODEC_1_DAC_ENABLE_OFFSET 24
-#define JZ_CODEC_1_HEADPHONE_DISABLE_OFFSET 14
-#define JZ_CODEC_1_HEADPHONE_POWER_DOWN_OFFSET 8
-
-#define JZ_CODEC_2_INPUT_VOLUME_MASK 0x1f0000
-#define JZ_CODEC_2_SAMPLE_RATE_MASK 0x000f00
-#define JZ_CODEC_2_MIC_BOOST_GAIN_MASK 0x000030
-#define JZ_CODEC_2_HEADPHONE_VOLUME_MASK 0x000003
-
-#define JZ_CODEC_2_INPUT_VOLUME_OFFSET 16
-#define JZ_CODEC_2_SAMPLE_RATE_OFFSET 8
-#define JZ_CODEC_2_MIC_BOOST_GAIN_OFFSET 4
-#define JZ_CODEC_2_HEADPHONE_VOLUME_OFFSET 0
-
-struct jz_codec {
- void __iomem *base;
- struct resource *mem;
-
- uint32_t reg_cache[2];
- struct snd_soc_codec codec;
-};
-
-inline static struct jz_codec *codec_to_jz(struct snd_soc_codec *codec)
-{
- return container_of(codec, struct jz_codec, codec);
-}
-
-static unsigned int jz_codec_read(struct snd_soc_codec *codec, unsigned int reg)
-{
- struct jz_codec *jz_codec = codec_to_jz(codec);
- return readl(jz_codec->base + (reg << 2));
-}
-
-static int jz_codec_write(struct snd_soc_codec *codec, unsigned int reg,
-unsigned int val)
-{
- struct jz_codec *jz_codec = codec_to_jz(codec);
- jz_codec->reg_cache[reg] = val;
-
- writel(val, jz_codec->base + (reg << 2));
- return 0;
-}
-
-static const struct snd_kcontrol_new jz_codec_controls[] = {
- SOC_SINGLE("Master Playback Volume", JZ_REG_CODEC_2,
- JZ_CODEC_2_HEADPHONE_VOLUME_OFFSET, 3, 0),
- SOC_SINGLE("Capture Volume", JZ_REG_CODEC_2,
- JZ_CODEC_2_INPUT_VOLUME_OFFSET, 31, 0),
- SOC_SINGLE("Master Playback Switch", JZ_REG_CODEC_1,
- JZ_CODEC_1_HEADPHONE_DISABLE_OFFSET, 1, 1),
- SOC_SINGLE("Mic Capture Volume", JZ_REG_CODEC_2,
- JZ_CODEC_2_MIC_BOOST_GAIN_OFFSET, 3, 0),
-};
-
-static const struct snd_kcontrol_new jz_codec_output_controls[] = {
- SOC_DAPM_SINGLE("Bypass Switch", JZ_REG_CODEC_1,
- JZ_CODEC_1_SW1_ENABLE_OFFSET, 1, 0),
- SOC_DAPM_SINGLE("DAC Switch", JZ_REG_CODEC_1,
- JZ_CODEC_1_SW2_ENABLE_OFFSET, 1, 0),
-};
-
-static const struct snd_kcontrol_new jz_codec_input_controls[] =
-{
- SOC_DAPM_SINGLE("Line Capture Switch", JZ_REG_CODEC_1,
- JZ_CODEC_1_LINE_ENABLE_OFFSET, 1, 0),
- SOC_DAPM_SINGLE("Mic Capture Switch", JZ_REG_CODEC_1,
- JZ_CODEC_1_MIC_ENABLE_OFFSET, 1, 0),
-};
-
-static const struct snd_soc_dapm_widget jz_codec_dapm_widgets[] = {
- SND_SOC_DAPM_ADC("ADC", "Capture", JZ_REG_CODEC_1,
- JZ_CODEC_1_ADC_ENABLE_OFFSET, 0),
- SND_SOC_DAPM_DAC("DAC", "Playback", JZ_REG_CODEC_1,
- JZ_CODEC_1_DAC_ENABLE_OFFSET, 0),
-
- SND_SOC_DAPM_MIXER("Output Mixer", JZ_REG_CODEC_1,
- JZ_CODEC_1_HEADPHONE_POWER_DOWN_OFFSET, 1,
- jz_codec_output_controls,
- ARRAY_SIZE(jz_codec_output_controls)),
-
- SND_SOC_DAPM_MIXER_NAMED_CTL("Input Mixer", SND_SOC_NOPM, 0, 0,
- jz_codec_input_controls,
- ARRAY_SIZE(jz_codec_input_controls)),
- SND_SOC_DAPM_MIXER("Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
-
- SND_SOC_DAPM_OUTPUT("LOUT"),
- SND_SOC_DAPM_OUTPUT("ROUT"),
-
- SND_SOC_DAPM_INPUT("MIC"),
- SND_SOC_DAPM_INPUT("LIN"),
- SND_SOC_DAPM_INPUT("RIN"),
-};
-
-static const struct snd_soc_dapm_route jz_codec_dapm_routes[] = {
-
- {"Line Input", NULL, "LIN"},
- {"Line Input", NULL, "RIN"},
-
- {"Input Mixer", "Line Capture Switch", "Line Input"},
- {"Input Mixer", "Mic Capture Switch", "MIC"},
-
- {"ADC", NULL, "Input Mixer"},
-
- {"Output Mixer", "Bypass Switch", "Input Mixer"},
- {"Output Mixer", "DAC Switch", "DAC"},
-
- {"LOUT", NULL, "Output Mixer"},
- {"ROUT", NULL, "Output Mixer"},
-};
-
-static int jz_codec_hw_params(struct snd_pcm_substream *substream, struct
-snd_pcm_hw_params *params, struct snd_soc_dai *dai)
-{
- uint32_t val;
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
-
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S8:
- case SNDRV_PCM_FORMAT_S16_LE:
- case SNDRV_PCM_FORMAT_S18_3LE:
- break;
- default:
- return -EINVAL;
- break;
- }
-
- switch (params_rate(params)) {
- case 8000:
- val = 0;
- break;
- case 11025:
- val = 1;
- break;
- case 12000:
- val = 2;
- break;
- case 16000:
- val = 3;
- break;
- case 22050:
- val = 4;
- break;
- case 24000:
- val = 5;
- break;
- case 32000:
- val = 6;
- break;
- case 44100:
- val = 7;
- break;
- case 48000:
- val = 8;
- break;
- default:
- return -EINVAL;
- }
-
- val <<= JZ_CODEC_2_SAMPLE_RATE_OFFSET;
-
- snd_soc_update_bits(codec, JZ_REG_CODEC_2,
- JZ_CODEC_2_SAMPLE_RATE_MASK, val);
-
- return 0;
-}
-
-static int jz_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
-{
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- break;
- default:
- return -EINVAL;
- }
-
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_I2S:
- break;
- default:
- return -EINVAL;
- }
-
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int jz_codec_set_sysclk(struct snd_soc_dai *codec_dai,
- int clk_id, unsigned int freq, int dir)
-{
- return 0;
-}
-
-
-static struct snd_soc_dai_ops jz_codec_dai_ops = {
- .hw_params = jz_codec_hw_params,
- .set_fmt = jz_codec_set_fmt,
-/* .set_clkdiv = jz_codec_set_clkdiv,*/
- .set_sysclk = jz_codec_set_sysclk,
-};
-
-struct snd_soc_dai jz_codec_dai = {
- .name = "jz-codec",
- .playback = {
- .stream_name = "Playback",
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_44100,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
- .capture = {
- .stream_name = "Capture",
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_44100,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
- .ops = &jz_codec_dai_ops,
- .symmetric_rates = 1,
-};
-EXPORT_SYMBOL_GPL(jz_codec_dai);
-
-static int jz_codec_set_bias_level(struct snd_soc_codec *codec,
- enum snd_soc_bias_level level)
-{
-
- if (codec->bias_level == SND_SOC_BIAS_OFF && level != SND_SOC_BIAS_OFF) {
- snd_soc_update_bits(codec, JZ_REG_CODEC_1,
- JZ_CODEC_1_RESET, JZ_CODEC_1_RESET);
- udelay(2);
-
- snd_soc_update_bits(codec, JZ_REG_CODEC_1,
- JZ_CODEC_1_SUSPEND | JZ_CODEC_1_RESET, 0);
- }
- switch (level) {
- case SND_SOC_BIAS_ON:
- snd_soc_update_bits(codec, JZ_REG_CODEC_1,
- JZ_CODEC_1_VREF_DISABLE | JZ_CODEC_1_VREF_AMP_DISABLE |
- JZ_CODEC_1_HEADPHONE_POWER_DOWN_M |
- JZ_CODEC_1_VREF_LOW_CURRENT | JZ_CODEC_1_VREF_HIGH_CURRENT,
- 0);
- break;
- case SND_SOC_BIAS_PREPARE:
- snd_soc_update_bits(codec, JZ_REG_CODEC_1,
- JZ_CODEC_1_VREF_LOW_CURRENT | JZ_CODEC_1_VREF_HIGH_CURRENT,
- JZ_CODEC_1_VREF_LOW_CURRENT | JZ_CODEC_1_VREF_HIGH_CURRENT);
- break;
- case SND_SOC_BIAS_STANDBY:
- snd_soc_update_bits(codec, JZ_REG_CODEC_1,
- JZ_CODEC_1_VREF_DISABLE | JZ_CODEC_1_VREF_AMP_DISABLE,
- JZ_CODEC_1_VREF_DISABLE | JZ_CODEC_1_VREF_AMP_DISABLE);
- break;
- case SND_SOC_BIAS_OFF:
- snd_soc_update_bits(codec, JZ_REG_CODEC_1,
- JZ_CODEC_1_SUSPEND, JZ_CODEC_1_SUSPEND);
- break;
- }
- codec->bias_level = level;
-
- return 0;
-}
-
-
-static struct snd_soc_codec *jz_codec_codec;
-
-static int jz_codec_dev_probe(struct platform_device *pdev)
-{
- int ret;
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = jz_codec_codec;
-
- BUG_ON(!codec);
-
- socdev->card->codec = codec;
-
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret) {
- dev_err(&pdev->dev, "Failed to create pcms: %d\n", ret);
- goto err;
- }
- snd_soc_add_controls(codec, jz_codec_controls,
- ARRAY_SIZE(jz_codec_controls));
-
- snd_soc_dapm_new_controls(codec, jz_codec_dapm_widgets,
- ARRAY_SIZE(jz_codec_dapm_widgets));
-
- snd_soc_dapm_add_routes(codec, jz_codec_dapm_routes,
- ARRAY_SIZE(jz_codec_dapm_routes));
-
- snd_soc_dapm_new_widgets(codec);
-
- ret = snd_soc_init_card(socdev);
-
- if (ret) {
- dev_err(&pdev->dev, "Failed to register card\n");
- goto err;
- }
-
- return 0;
-
-err:
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-
- return ret;
-}
-
-static int jz_codec_dev_remove(struct platform_device *pdev)
-{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-
- return 0;
-}
-
-struct snd_soc_codec_device soc_codec_dev_jzcodec = {
- .probe = jz_codec_dev_probe,
- .remove = jz_codec_dev_remove,
-};
-EXPORT_SYMBOL_GPL(soc_codec_dev_jzcodec);
-
-static int __devinit jz_codec_probe(struct platform_device *pdev)
-{
- int ret;
- struct jz_codec *jz_codec;
- struct snd_soc_codec *codec;
-
- jz_codec = kzalloc(sizeof(*jz_codec), GFP_KERNEL);
-
- if (!jz_codec)
- return -ENOMEM;
-
- jz_codec->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
- if (!jz_codec->mem) {
- dev_err(&pdev->dev, "Failed to get mmio memory resource\n");
- ret = -ENOENT;
- goto err_free_jz_codec;
- }
-
- jz_codec->mem = request_mem_region(jz_codec->mem->start,
- resource_size(jz_codec->mem), pdev->name);
-
- if (!jz_codec->mem) {
- dev_err(&pdev->dev, "Failed to request mmio memory region\n");
- ret = -EBUSY;
- goto err_free_jz_codec;
- }
-
- jz_codec->base = ioremap(jz_codec->mem->start, resource_size(jz_codec->mem));
-
- if (!jz_codec->base) {
- dev_err(&pdev->dev, "Failed to ioremap mmio memory\n");
- ret = -EBUSY;
- goto err_release_mem_region;
- }
-
- jz_codec_dai.dev = &pdev->dev;
-
- codec = &jz_codec->codec;
-
- codec->dev = &pdev->dev;
- codec->name = "jz-codec";
- codec->owner = THIS_MODULE;
-
- codec->read = jz_codec_read;
- codec->write = jz_codec_write;
- codec->set_bias_level = jz_codec_set_bias_level;
- codec->bias_level = SND_SOC_BIAS_OFF;
-
- codec->dai = &jz_codec_dai;
- codec->num_dai = 1;
-
- codec->reg_cache = jz_codec->reg_cache;
- codec->reg_cache_size = 2;
-
- codec->private_data = jz_codec;
-
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
- jz_codec_codec = codec;
-
- snd_soc_update_bits(codec, JZ_REG_CODEC_1,
- JZ_CODEC_1_SW2_ENABLE, JZ_CODEC_1_SW2_ENABLE);
-
-
- platform_set_drvdata(pdev, jz_codec);
- ret = snd_soc_register_codec(codec);
-
- if (ret) {
- dev_err(&pdev->dev, "Failed to register codec\n");
- goto err_iounmap;
- }
-
- ret = snd_soc_register_dai(&jz_codec_dai);
- if (ret) {
- dev_err(&pdev->dev, "Failed to register codec dai\n");
- goto err_unregister_codec;
- }
-
- jz_codec_set_bias_level (codec, SND_SOC_BIAS_STANDBY);
-
- return 0;
-err_unregister_codec:
- snd_soc_unregister_codec(codec);
-err_iounmap:
- iounmap(jz_codec->base);
-err_release_mem_region:
- release_mem_region(jz_codec->mem->start, resource_size(jz_codec->mem));
-err_free_jz_codec:
- kfree(jz_codec);
-
- return ret;
-}
-
-static int __devexit jz_codec_remove(struct platform_device *pdev)
-{
- struct jz_codec *jz_codec = platform_get_drvdata(pdev);
-
- snd_soc_unregister_dai(&jz_codec_dai);
- snd_soc_unregister_codec(&jz_codec->codec);
-
- iounmap(jz_codec->base);
- release_mem_region(jz_codec->mem->start, resource_size(jz_codec->mem));
-
- platform_set_drvdata(pdev, NULL);
- kfree(jz_codec);
-
- return 0;
-}
-
-static struct platform_driver jz_codec_driver = {
- .probe = jz_codec_probe,
- .remove = __devexit_p(jz_codec_remove),
- .driver = {
- .name = "jz4740-codec",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init jz_codec_init(void)
-{
- return platform_driver_register(&jz_codec_driver);
-}
-module_init(jz_codec_init);
-
-static void __exit jz_codec_exit(void)
-{
- platform_driver_unregister(&jz_codec_driver);
-}
-module_exit(jz_codec_exit);
-
-MODULE_DESCRIPTION("JZ4720/JZ4740 SoC internal codec driver");
-MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:jz-codec");
projects / openwrt / svn-archive / archive.git / blobdiff