diff options
Diffstat (limited to 'target/linux/xburst/files-2.6.32/sound/soc')
10 files changed, 1871 insertions, 0 deletions
diff --git a/target/linux/xburst/files-2.6.32/sound/soc/codecs/jzcodec.c b/target/linux/xburst/files-2.6.32/sound/soc/codecs/jzcodec.c new file mode 100644 index 0000000..ce5aaf1 --- /dev/null +++ b/target/linux/xburst/files-2.6.32/sound/soc/codecs/jzcodec.c @@ -0,0 +1,520 @@ +/* + * 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_FORMAT_S18_3LE, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_44100, + .formats = SNDRV_PCM_FORMAT_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"); diff --git a/target/linux/xburst/files-2.6.32/sound/soc/codecs/jzcodec.h b/target/linux/xburst/files-2.6.32/sound/soc/codecs/jzcodec.h new file mode 100644 index 0000000..05c57b8 --- /dev/null +++ b/target/linux/xburst/files-2.6.32/sound/soc/codecs/jzcodec.h @@ -0,0 +1,22 @@ +/* + * 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. + * + */ + +#ifndef _ICODEC_H +#define _ICODEC_H + +#define JZCODEC_SYSCLK 0 + +extern struct snd_soc_dai jz_codec_dai; +extern struct snd_soc_codec_device soc_codec_dev_jzcodec; + +#endif diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Kconfig b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Kconfig new file mode 100644 index 0000000..b19fd8f --- /dev/null +++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Kconfig @@ -0,0 +1,29 @@ +config SND_JZ4740_SOC + tristate "SoC Audio for Ingenic JZ4740 SoC" + depends on SOC_JZ4740 && SND_SOC + help + Say Y or M if you want to add support for codecs attached to + the Jz4740 AC97, I2S or SSP interface. You will also need + to select the audio interfaces to support below. + +config SND_JZ4740_SOC_QI_LB60 + tristate "SoC Audio support for Qi Hardware Ben Nanonote" + depends on SND_JZ4740_SOC && JZ4740_QI_LB60 + select SND_JZ4740_SOC_I2S + select SND_SOC_JZCODEC + help + Say Y if you want to add support for SoC audio of internal codec on Ingenic Jz4740 QI_LB60 board. + +config SND_JZ4740_SOC_N526 + tristate "SoC Audio support for Hanvon N526 eBook reader" + depends on SND_JZ4740_SOC && JZ4740_N526 + select SND_JZ4740_SOC_I2S + select SND_SOC_JZCODEC + help + Say Y if you want to enable support for SoC audio on the Hanvon N526. + +config SND_JZ4740_SOC_I2S + depends on SND_JZ4740_SOC + tristate "SoC Audio (I2S protocol) for Ingenic jz4740 chip" + help + Say Y if you want to use I2S protocol and I2S codec on Ingenic Jz4740 QI_LB60 board. diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Makefile b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Makefile new file mode 100644 index 0000000..0b429cf --- /dev/null +++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Makefile @@ -0,0 +1,15 @@ +# +# Jz4740 Platform Support +# +snd-soc-jz4740-objs := jz4740-pcm.o +snd-soc-jz4740-i2s-objs := jz4740-i2s.o + +obj-$(CONFIG_SND_JZ4740_SOC) += snd-soc-jz4740.o +obj-$(CONFIG_SND_JZ4740_SOC_I2S) += snd-soc-jz4740-i2s.o + +# Jz4740 Machine Support +snd-soc-qi-lb60-objs := qi_lb60.o +snd-soc-n526-objs := n526.o + +obj-$(CONFIG_SND_JZ4740_SOC_QI_LB60) += snd-soc-qi-lb60.o +obj-$(CONFIG_SND_JZ4740_SOC_N526) += snd-soc-n526.o diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.c b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.c new file mode 100644 index 0000000..8853a73 --- /dev/null +++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.c @@ -0,0 +1,552 @@ +/* + * Copyright (C) 2010, 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 as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * 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/init.h> +#include <linux/dma-mapping.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/delay.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/initval.h> + +#include "jz4740-i2s.h" +#include "jz4740-pcm.h" + +#define JZ_REG_AIC_CONF 0x00 +#define JZ_REG_AIC_CTRL 0x04 +#define JZ_REG_AIC_I2S_FMT 0x10 +#define JZ_REG_AIC_FIFO_STATUS 0x14 +#define JZ_REG_AIC_I2S_STATUS 0x1c +#define JZ_REG_AIC_CLK_DIV 0x30 +#define JZ_REG_AIC_FIFO 0x34 + +#define JZ_AIC_CONF_FIFO_RX_THRESHOLD_MASK (0xf << 12) +#define JZ_AIC_CONF_FIFO_TX_THRESHOLD_MASK (0xf << 8) +#define JZ_AIC_CONF_OVERFLOW_PLAY_LAST BIT(6) +#define JZ_AIC_CONF_INTERNAL_CODEC BIT(5) +#define JZ_AIC_CONF_I2S BIT(4) +#define JZ_AIC_CONF_RESET BIT(3) +#define JZ_AIC_CONF_BIT_CLK_MASTER BIT(2) +#define JZ_AIC_CONF_SYNC_CLK_MASTER BIT(1) +#define JZ_AIC_CONF_ENABLE BIT(0) + +#define JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET 12 +#define JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET 8 + +#define JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_MASK (0x7 << 19) +#define JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK (0x7 << 16) +#define JZ_AIC_CTRL_ENABLE_RX_DMA BIT(15) +#define JZ_AIC_CTRL_ENABLE_TX_DMA BIT(14) +#define JZ_AIC_CTRL_MONO_TO_STEREO BIT(11) +#define JZ_AIC_CTRL_SWITCH_ENDIANNESS BIT(10) +#define JZ_AIC_CTRL_SIGNED_TO_UNSIGNED BIT(9) +#define JZ_AIC_CTRL_FLUSH BIT(8) +#define JZ_AIC_CTRL_ENABLE_ROR_INT BIT(6) +#define JZ_AIC_CTRL_ENABLE_TUR_INT BIT(5) +#define JZ_AIC_CTRL_ENABLE_RFS_INT BIT(4) +#define JZ_AIC_CTRL_ENABLE_TFS_INT BIT(3) +#define JZ_AIC_CTRL_ENABLE_LOOPBACK BIT(2) +#define JZ_AIC_CTRL_ENABLE_PLAYBACK BIT(1) +#define JZ_AIC_CTRL_ENABLE_CAPTURE BIT(0) + +#define JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_OFFSET 19 +#define JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET 16 + +#define JZ_AIC_I2S_FMT_DISABLE_BIT_CLK BIT(12) +#define JZ_AIC_I2S_FMT_ENABLE_SYS_CLK BIT(4) +#define JZ_AIC_I2S_FMT_MSB BIT(0) + +#define JZ_AIC_I2S_STATUS_BUSY BIT(2) + +#define JZ_AIC_CLK_DIV_MASK 0xf + +struct jz4740_i2s { + struct resource *mem; + void __iomem *base; + dma_addr_t phys_base; + + struct clk *clk; + + struct jz4740_pcm_config pcm_config; +}; + +static struct jz4740_dma_config jz4740_i2s_dma_playback_config = { + .src_width = JZ4740_DMA_WIDTH_16BIT, + .dst_width = JZ4740_DMA_WIDTH_32BIT, + .transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE, + .request_type = JZ4740_DMA_TYPE_AIC_TRANSMIT, + .flags = JZ4740_DMA_SRC_AUTOINC, + .mode = JZ4740_DMA_MODE_SINGLE, +}; + +static struct jz4740_dma_config jz4740_i2s_dma_capture_config = { + .src_width = JZ4740_DMA_WIDTH_32BIT, + .dst_width = JZ4740_DMA_WIDTH_16BIT, + .transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE, + .request_type = JZ4740_DMA_TYPE_AIC_RECEIVE, + .flags = JZ4740_DMA_DST_AUTOINC, + .mode = JZ4740_DMA_MODE_SINGLE, +}; + + +static inline uint32_t jz4740_i2s_read(const struct jz4740_i2s *i2s, unsigned int reg) +{ + return readl(i2s->base + reg); +} + +static inline void jz4740_i2s_write(const struct jz4740_i2s *i2s, unsigned +int reg, uint32_t value) +{ + writel(value, i2s->base + reg); +} + +static inline struct jz4740_i2s *jz4740_dai_to_i2s(struct snd_soc_dai *dai) +{ + return dai->private_data; +} + +static int jz4740_i2s_startup(struct snd_pcm_substream *substream, struct + snd_soc_dai *dai) +{ + struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); + uint32_t conf, ctrl; + + if (dai->active) + return 0; + + conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); + ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL); + + conf |= JZ_AIC_CONF_ENABLE; + ctrl |= JZ_AIC_CTRL_FLUSH; + + + jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl); + clk_enable(i2s->clk); + jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); + + return 0; +} + +static void jz4740_i2s_shutdown(struct snd_pcm_substream *substream, struct + snd_soc_dai *dai) +{ + struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); + uint32_t conf; + + if (dai->active) + return; + + conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); + conf &= ~JZ_AIC_CONF_ENABLE; + jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); + + clk_disable(i2s->clk); +} + + +static int jz4740_i2s_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); + bool playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); + + uint32_t ctrl; + uint32_t mask; + + if (playback) { + mask = JZ_AIC_CTRL_ENABLE_PLAYBACK | + JZ_AIC_CTRL_ENABLE_TX_DMA; + } else { + mask = JZ_AIC_CTRL_ENABLE_CAPTURE | + JZ_AIC_CTRL_ENABLE_RX_DMA; + } + + ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + ctrl |= mask; + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + ctrl &= ~mask; + break; + default: + return -EINVAL; + } + + jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL,ctrl); + + return 0; +} + + +static int jz4740_i2s_set_fmt(struct snd_soc_dai *dai, + unsigned int fmt) +{ + struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); + + uint32_t format = 0; + uint32_t conf; + + conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); + + conf &= ~(JZ_AIC_CONF_BIT_CLK_MASTER | JZ_AIC_CONF_SYNC_CLK_MASTER); + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + conf |= JZ_AIC_CONF_BIT_CLK_MASTER | + JZ_AIC_CONF_SYNC_CLK_MASTER; + format |= JZ_AIC_I2S_FMT_ENABLE_SYS_CLK; + break; + case SND_SOC_DAIFMT_CBM_CFS: + conf |= JZ_AIC_CONF_SYNC_CLK_MASTER; + break; + case SND_SOC_DAIFMT_CBS_CFM: + conf |= JZ_AIC_CONF_BIT_CLK_MASTER; + break; + case SND_SOC_DAIFMT_CBM_CFM: + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_MSB: + format |= JZ_AIC_I2S_FMT_MSB; + break; + 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; + } + + jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); + jz4740_i2s_write(i2s, JZ_REG_AIC_I2S_FMT, format); + + return 0; +} + +static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); + bool playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); + int sample_size; + enum jz4740_dma_width dma_width; + uint32_t ctrl; + + ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL); + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S8: + sample_size = 0; + dma_width = JZ4740_DMA_WIDTH_8BIT; + break; + case SNDRV_PCM_FORMAT_S16: + sample_size = 1; + dma_width = JZ4740_DMA_WIDTH_16BIT; + break; + default: + return -EINVAL; + } + + if (playback) { + ctrl &= ~JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_MASK; + ctrl |= sample_size << JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_OFFSET; + } else { + ctrl &= ~JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK; + ctrl |= sample_size << JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET; + } + + switch (params_channels(params)) { + case 2: + break; + case 1: + if (playback) { + ctrl |= JZ_AIC_CTRL_MONO_TO_STEREO; + break; + } + default: + return -EINVAL; + } + + jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl); + + /* This is quite ugly, but apperently it's offical method for passing dma + * config to the pcm module */ + if (playback) { + jz4740_i2s_dma_playback_config.src_width = dma_width; + i2s->pcm_config.dma_config = &jz4740_i2s_dma_playback_config; + } else { + jz4740_i2s_dma_capture_config.dst_width = dma_width; + i2s->pcm_config.dma_config = &jz4740_i2s_dma_capture_config; + } + i2s->pcm_config.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO; + + dai->dma_data = &i2s->pcm_config; + + return 0; +} + +static int jz4740_i2s_set_clkdiv(struct snd_soc_dai *dai, + int div_id, int div) +{ + struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); + + switch (div_id) { + case JZ4740_I2S_BIT_CLK: + if (div & 1 || div > 16) + return -EINVAL; + jz4740_i2s_write(i2s, JZ_REG_AIC_CLK_DIV, div - 1); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int jz4740_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); + int ret = 0; + struct clk *parent; + + switch (clk_id) { + case JZ4740_I2S_CLKSRC_EXT: + parent = clk_get(NULL, "ext"); + clk_set_parent(i2s->clk, parent); + break; + case JZ4740_I2S_CLKSRC_PLL: + parent = clk_get(NULL, "pll half"); + clk_set_parent(i2s->clk, parent); + ret = clk_set_rate(i2s->clk, freq); + break; + default: + return -EINVAL; + } + clk_put(parent); + + return ret; +} + +static int jz4740_i2s_suspend(struct snd_soc_dai *dai) +{ + struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); + uint32_t conf; + + if (!dai->active) + return 0; + + conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); + conf &= ~JZ_AIC_CONF_ENABLE; + jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); + + clk_disable(i2s->clk); + return 0; +} + +static int jz4740_i2s_resume(struct snd_soc_dai *dai) +{ + struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); + uint32_t conf; + + if (!dai->active) + return 0; + + clk_enable(i2s->clk); + + conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); + conf |= JZ_AIC_CONF_ENABLE; + jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); + + return 0; +} + + +static int jz4740_i2s_probe(struct platform_device *pdev, struct snd_soc_dai *dai) +{ + struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai); + uint32_t conf; + + conf = (7 << JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET) | + (8 << JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET) | + JZ_AIC_CONF_OVERFLOW_PLAY_LAST | + JZ_AIC_CONF_I2S | + JZ_AIC_CONF_INTERNAL_CODEC; + + jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, JZ_AIC_CONF_RESET); + jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf); + + return 0; +} + + +static struct snd_soc_dai_ops jz4740_i2s_dai_ops = { + .startup = jz4740_i2s_startup, + .shutdown = jz4740_i2s_shutdown, + .trigger = jz4740_i2s_trigger, + .hw_params = jz4740_i2s_hw_params, + .set_fmt = jz4740_i2s_set_fmt, + .set_clkdiv = jz4740_i2s_set_clkdiv, + .set_sysclk = jz4740_i2s_set_sysclk, +}; + +#define JZ4740_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_S16_LE) + +struct snd_soc_dai jz4740_i2s_dai = { + .name = "jz4740-i2s", + .probe = jz4740_i2s_probe, + .playback = { + .channels_min = 1, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_44100, + .formats = JZ4740_I2S_FMTS, + }, + .capture = { + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_44100, + .formats = JZ4740_I2S_FMTS, + }, + .symmetric_rates = 1, + .ops = &jz4740_i2s_dai_ops, + .suspend = jz4740_i2s_suspend, + .resume = jz4740_i2s_resume, +}; + +static int __devinit jz4740_i2s_dev_probe(struct platform_device *pdev) +{ + struct jz4740_i2s *i2s; + int ret; + + i2s = kzalloc(sizeof(*i2s), GFP_KERNEL); + + if (!i2s) + return -ENOMEM; + + i2s->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + if (!i2s->mem) { + ret = -ENOENT; + goto err_free; + } + + i2s->mem = request_mem_region(i2s->mem->start, resource_size(i2s->mem), + pdev->name); + + if (!i2s->mem) { + ret = -EBUSY; + goto err_free; + } + + i2s->base = ioremap_nocache(i2s->mem->start, resource_size(i2s->mem)); + + if (!i2s->base) { + ret = -EBUSY; + goto err_release_mem_region; + } + + i2s->phys_base = i2s->mem->start; + + jz4740_i2s_dai.private_data = i2s; + + ret = snd_soc_register_dai(&jz4740_i2s_dai); + + i2s->clk = clk_get(&pdev->dev, "i2s"); + + if (IS_ERR(i2s->clk)) { + ret = PTR_ERR(i2s->clk); + goto err_iounmap; + } + + platform_set_drvdata(pdev, i2s); + + return 0; + +err_iounmap: + iounmap(i2s->base); +err_release_mem_region: + release_mem_region(i2s->mem->start, resource_size(i2s->mem)); +err_free: + kfree(i2s); + + return ret; +} + +static int __devexit jz4740_i2s_dev_remove(struct platform_device *pdev) +{ + struct jz4740_i2s *i2s = platform_get_drvdata(pdev); + + snd_soc_unregister_dai(&jz4740_i2s_dai); + + clk_put(i2s->clk); + + iounmap(i2s->base); + release_mem_region(i2s->mem->start, resource_size(i2s->mem)); + + platform_set_drvdata(pdev, NULL); + kfree(i2s); + + return 0; +} + +static struct platform_driver jz4740_i2s_driver = { + .probe = jz4740_i2s_dev_probe, + .remove = __devexit_p(jz4740_i2s_dev_remove), + .driver = { + .name = "jz4740-i2s", + .owner = THIS_MODULE, + }, +}; + +static int __init jz4740_i2s_init(void) +{ + return platform_driver_register(&jz4740_i2s_driver); +} +module_init(jz4740_i2s_init); + +static void __exit jz4740_i2s_exit(void) +{ + platform_driver_unregister(&jz4740_i2s_driver); +} +module_exit(jz4740_i2s_exit); + +MODULE_AUTHOR("Lars-Peter Clausen, <lars@metafoo.de>"); +MODULE_DESCRIPTION("Ingenic JZ4740 SoC I2S driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:jz4740-i2s"); diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.h b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.h new file mode 100644 index 0000000..da22ed8 --- /dev/null +++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.h @@ -0,0 +1,18 @@ +/* + * 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. + */ + +#ifndef _JZ4740_I2S_H +#define _JZ4740_I2S_H + +/* I2S clock source */ +#define JZ4740_I2S_CLKSRC_EXT 0 +#define JZ4740_I2S_CLKSRC_PLL 1 + +#define JZ4740_I2S_BIT_CLK 0 + +extern struct snd_soc_dai jz4740_i2s_dai; + +#endif diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c new file mode 100644 index 0000000..c71c5b4 --- /dev/null +++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c @@ -0,0 +1,342 @@ +/* + * Copyright (C) 2010, 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 as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * 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/init.h> +#include <linux/interrupt.h> +#include <linux/dma-mapping.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include <asm/mach-jz4740/dma.h> +#include "jz4740-pcm.h" + +struct jz4740_runtime_data { + unsigned int dma_period; + dma_addr_t dma_start; + dma_addr_t dma_pos; + dma_addr_t dma_end; + + struct jz4740_dma_chan *dma; + + dma_addr_t fifo_addr; +}; + +/* identify hardware playback capabilities */ +static const struct snd_pcm_hardware jz4740_pcm_hardware = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S8, + .rates = SNDRV_PCM_RATE_8000_48000, + .channels_min = 1, + .channels_max = 2, + .period_bytes_min = 32, + .period_bytes_max = 2 * PAGE_SIZE, + .periods_min = 2, + .periods_max = 128, + .buffer_bytes_max = 128 * 2 * PAGE_SIZE, + .fifo_size = 32, +}; + +static void jz4740_pcm_start_transfer(struct jz4740_runtime_data *prtd, int stream) +{ + unsigned int count; + + if (prtd->dma_pos + prtd->dma_period > prtd->dma_end) + count = prtd->dma_end - prtd->dma_pos; + else + count = prtd->dma_period; + + jz4740_dma_disable(prtd->dma); + + if (stream == SNDRV_PCM_STREAM_PLAYBACK) { + jz4740_dma_set_src_addr(prtd->dma, prtd->dma_pos); + jz4740_dma_set_dst_addr(prtd->dma, prtd->fifo_addr); + } else { + jz4740_dma_set_src_addr(prtd->dma, prtd->fifo_addr); + jz4740_dma_set_dst_addr(prtd->dma, prtd->dma_pos); + } + + jz4740_dma_set_transfer_count(prtd->dma, count); + + jz4740_dma_enable(prtd->dma); + + prtd->dma_pos += prtd->dma_period; + if (prtd->dma_pos >= prtd->dma_end) + prtd->dma_pos = prtd->dma_start; +} + +static void jz4740_pcm_dma_transfer_done(struct jz4740_dma_chan *dma, int err, + void *dev_id) +{ + struct snd_pcm_substream *substream = dev_id; + struct snd_pcm_runtime *runtime = substream->runtime; + struct jz4740_runtime_data *prtd = runtime->private_data; + + snd_pcm_period_elapsed(substream); + + jz4740_pcm_start_transfer(prtd, substream->stream); +} + +static int jz4740_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct jz4740_runtime_data *prtd = runtime->private_data; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct jz4740_pcm_config *config; + + config = rtd->dai->cpu_dai->dma_data; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + prtd->dma = jz4740_dma_request(substream, "PCM Playback"); + } else { + prtd->dma = jz4740_dma_request(substream, "PCM Capture"); + } + + if (!prtd->dma) + return -EBUSY; + + jz4740_dma_configure(prtd->dma, config->dma_config); + prtd->fifo_addr = config->fifo_addr; + + jz4740_dma_set_complete_cb(prtd->dma, jz4740_pcm_dma_transfer_done); + + snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); + runtime->dma_bytes = params_buffer_bytes(params); + + prtd->dma_period = params_period_bytes(params); + prtd->dma_start = runtime->dma_addr; + prtd->dma_pos = prtd->dma_start; + prtd->dma_end = prtd->dma_start + runtime->dma_bytes; + + return 0; +} + +static int jz4740_pcm_hw_free(struct snd_pcm_substream *substream) +{ + struct jz4740_runtime_data *prtd = substream->runtime->private_data; + + snd_pcm_set_runtime_buffer(substream, NULL); + if (prtd->dma) + jz4740_dma_free(prtd->dma); + + return 0; +} + +static int jz4740_pcm_prepare(struct snd_pcm_substream *substream) +{ + struct jz4740_runtime_data *prtd = substream->runtime->private_data; + int ret = 0; + + if (!prtd->dma) + return 0; + + prtd->dma_pos = prtd->dma_start; + + return ret; +} + +static int jz4740_pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct jz4740_runtime_data *prtd = runtime->private_data; + + int ret = 0; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + jz4740_pcm_start_transfer(prtd, substream->stream); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + jz4740_dma_disable(prtd->dma); + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static snd_pcm_uframes_t jz4740_pcm_pointer(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct jz4740_runtime_data *prtd = runtime->private_data; + unsigned long count, pos; + snd_pcm_uframes_t offset; + struct jz4740_dma_chan *dma = prtd->dma; + + count = jz4740_dma_get_residue(dma); + if (prtd->dma_pos == prtd->dma_start) + pos = prtd->dma_end - prtd->dma_start - count; + else + pos = prtd->dma_pos - prtd->dma_start - count; + + offset = bytes_to_frames(runtime, pos); + if (offset >= runtime->buffer_size) + offset = 0; + + return offset; +} + +static int jz4740_pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct jz4740_runtime_data *prtd; + + snd_soc_set_runtime_hwparams(substream, &jz4740_pcm_hardware); + prtd = kzalloc(sizeof(struct jz4740_runtime_data), GFP_KERNEL); + + if (prtd == NULL) + return -ENOMEM; + + runtime->private_data = prtd; + return 0; +} + +static int jz4740_pcm_close(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct jz4740_runtime_data *prtd = runtime->private_data; + + kfree(prtd); + + return 0; +} + +static int jz4740_pcm_mmap(struct snd_pcm_substream *substream, + struct vm_area_struct *vma) +{ + return remap_pfn_range(vma, vma->vm_start, + substream->dma_buffer.addr >> PAGE_SHIFT, + vma->vm_end - vma->vm_start, vma->vm_page_prot); +} + +static struct snd_pcm_ops jz4740_pcm_ops = { + .open = jz4740_pcm_open, + .close = jz4740_pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = jz4740_pcm_hw_params, + .hw_free = jz4740_pcm_hw_free, + .prepare = jz4740_pcm_prepare, + .trigger = jz4740_pcm_trigger, + .pointer = jz4740_pcm_pointer, + .mmap = jz4740_pcm_mmap, +}; + +static int jz4740_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream) +{ + struct snd_pcm_substream *substream = pcm->streams[stream].substream; + struct snd_dma_buffer *buf = &substream->dma_buffer; + size_t size = jz4740_pcm_hardware.buffer_bytes_max; + + buf->dev.type = SNDRV_DMA_TYPE_DEV; + buf->dev.dev = pcm->card->dev; + buf->private_data = NULL; + + buf->area = dma_alloc_noncoherent(pcm->card->dev, size, + &buf->addr, GFP_KERNEL); + if (!buf->area) + return -ENOMEM; + + buf->bytes = size; + + return 0; +} + +static void jz4740_pcm_free(struct snd_pcm *pcm) +{ + struct snd_pcm_substream *substream; + struct snd_dma_buffer *buf; + int stream; + + for (stream = 0; stream < 2; stream++) { + substream = pcm->streams[stream].substream; + if (!substream) + continue; + + buf = &substream->dma_buffer; + if (!buf->area) + continue; + + dma_free_noncoherent(pcm->card->dev, buf->bytes, + buf->area, buf->addr); + buf->area = NULL; + } +} + +static u64 jz4740_pcm_dmamask = DMA_BIT_MASK(32); + +int jz4740_pcm_new(struct snd_card *card, struct snd_soc_dai *dai, + struct snd_pcm *pcm) +{ + int ret = 0; + + if (!card->dev->dma_mask) + card->dev->dma_mask = &jz4740_pcm_dmamask; + + if (!card->dev->coherent_dma_mask) + card->dev->coherent_dma_mask = DMA_BIT_MASK(32); + + if (dai->playback.channels_min) { + ret = jz4740_pcm_preallocate_dma_buffer(pcm, + SNDRV_PCM_STREAM_PLAYBACK); + if (ret) + goto err; + } + + if (dai->capture.channels_min) { + ret = jz4740_pcm_preallocate_dma_buffer(pcm, + SNDRV_PCM_STREAM_CAPTURE); + if (ret) + goto err; + } + +err: + return ret; +} + +struct snd_soc_platform jz4740_soc_platform = { + .name = "jz4740-pcm", + .pcm_ops = &jz4740_pcm_ops, + .pcm_new = jz4740_pcm_new, + .pcm_free = jz4740_pcm_free, +}; +EXPORT_SYMBOL_GPL(jz4740_soc_platform); + +static int __init jz4740_soc_platform_init(void) +{ + return snd_soc_register_platform(&jz4740_soc_platform); +} +module_init(jz4740_soc_platform_init); + +static void __exit jz4740_soc_platform_exit(void) +{ + snd_soc_unregister_platform(&jz4740_soc_platform); +} +module_exit(jz4740_soc_platform_exit); + +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("Ingenic SoC JZ4740 PCM driver"); +MODULE_LICENSE("GPL"); diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.h b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.h new file mode 100644 index 0000000..2a11800 --- /dev/null +++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.h @@ -0,0 +1,22 @@ +/* + * + * 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. + */ + +#ifndef _JZ4740_PCM_H +#define _JZ4740_PCM_H + +#include <linux/dma-mapping.h> +#include <asm/mach-jz4740/dma.h> + +/* platform data */ +extern struct snd_soc_platform jz4740_soc_platform; + +struct jz4740_pcm_config { + struct jz4740_dma_config *dma_config; + phys_addr_t fifo_addr; +}; + +#endif diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/n526.c b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/n526.c new file mode 100644 index 0000000..2283904 --- /dev/null +++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/n526.c @@ -0,0 +1,169 @@ +/* + * 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/module.h> +#include <linux/moduleparam.h> +#include <linux/timer.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <linux/gpio.h> + +#include "../codecs/jzcodec.h" +#include "jz4740-pcm.h" +#include "jz4740-i2s.h" + +#define N526_AMP_EN_GPIO JZ_GPIO_PORTD(4) + +static int n526_spk_event(struct snd_soc_dapm_widget *widget, + struct snd_kcontrol *ctrl, int event) +{ + gpio_set_value(N526_AMP_EN_GPIO, !SND_SOC_DAPM_EVENT_OFF(event)); + return 0; +} + +static const struct snd_soc_dapm_widget n526_widgets[] = { + SND_SOC_DAPM_SPK("Speaker", n526_spk_event), + SND_SOC_DAPM_HP("Headphone", NULL), + SND_SOC_DAPM_MIC("Mic", NULL), +}; + +static const struct snd_soc_dapm_route n526_routes[] = { + {"Mic", NULL, "MIC"}, + {"Speaker", NULL, "LOUT"}, + {"Speaker", NULL, "ROUT"}, + {"Headphone", NULL, "LOUT"}, + {"Headphone", NULL, "ROUT"}, +}; + +static const struct snd_kcontrol_new n526_controls[] = { + SOC_DAPM_PIN_SWITCH("Speaker"), +}; + +#define N526_DAIFMT (SND_SOC_DAIFMT_I2S | \ + SND_SOC_DAIFMT_NB_NF | \ + SND_SOC_DAIFMT_CBM_CFM) + +static int n526_codec_init(struct snd_soc_codec *codec) +{ + int ret; + struct snd_soc_dai *cpu_dai = codec->socdev->card->dai_link->cpu_dai; + struct snd_soc_dai *codec_dai = codec->socdev->card->dai_link->codec_dai; + + snd_soc_dapm_nc_pin(codec, "LIN"); + snd_soc_dapm_nc_pin(codec, "RIN"); + + ret = snd_soc_dai_set_fmt(codec_dai, N526_DAIFMT); + if (ret < 0) { + dev_err(codec->dev, "Failed to set codec dai format: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_fmt(cpu_dai, N526_DAIFMT); + if (ret < 0) { + dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_sysclk(codec_dai, JZCODEC_SYSCLK, 111, + SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(codec->dev, "Failed to set codec dai sysclk: %d\n", ret); + return ret; + } + + snd_soc_dapm_new_controls(codec, n526_widgets, ARRAY_SIZE(n526_widgets)); + + snd_soc_add_controls(codec, n526_controls, + ARRAY_SIZE(n526_controls)); + + snd_soc_dapm_add_routes(codec, n526_routes, ARRAY_SIZE(n526_routes)); + + snd_soc_dapm_sync(codec); + + return 0; +} + +static struct snd_soc_dai_link n526_dai = { + .name = "jz-codec", + .stream_name = "JZCODEC", + .cpu_dai = &jz4740_i2s_dai, + .codec_dai = &jz_codec_dai, + .init = n526_codec_init, +}; + +static struct snd_soc_card n526 = { + .name = "N526", + .dai_link = &n526_dai, + .num_links = 1, + .platform = &jz4740_soc_platform, +}; + +static struct snd_soc_device n526_snd_devdata = { + .card = &n526, + .codec_dev = &soc_codec_dev_jzcodec, +}; + +static struct platform_device *n526_snd_device; + +static int __init n526_init(void) +{ + int ret; + + n526_snd_device = platform_device_alloc("soc-audio", -1); + + if (!n526_snd_device) + return -ENOMEM; + + ret = gpio_request(N526_AMP_EN_GPIO, "AMP"); + if (ret) { + pr_err("n526 snd: Failed to request AMP GPIO(%d): %d\n", + N526_AMP_EN_GPIO, ret); + goto err_device_put; + } + + gpio_direction_output(JZ_GPIO_PORTD(4), 0); + + platform_set_drvdata(n526_snd_device, &n526_snd_devdata); + n526_snd_devdata.dev = &n526_snd_device->dev; + ret = platform_device_add(n526_snd_device); + if (ret) { + pr_err("n526 snd: Failed to add snd soc device: %d\n", ret); + goto err_unset_pdata; + } + + return 0; + +err_unset_pdata: + platform_set_drvdata(n526_snd_device, NULL); + gpio_free(N526_AMP_EN_GPIO); +err_device_put: + platform_device_put(n526_snd_device); + + return ret; +} +module_init(n526_init); + +static void __exit n526_exit(void) +{ + gpio_free(N526_AMP_EN_GPIO); + platform_device_unregister(n526_snd_device); +} +module_exit(n526_exit); + +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("ALSA SoC N526 audio support"); +MODULE_LICENSE("GPL v2"); diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/qi_lb60.c b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/qi_lb60.c new file mode 100644 index 0000000..a2ce3cf --- /dev/null +++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/qi_lb60.c @@ -0,0 +1,182 @@ +/* + * 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/module.h> +#include <linux/moduleparam.h> +#include <linux/timer.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <linux/gpio.h> + +#include "../codecs/jzcodec.h" +#include "jz4740-pcm.h" +#include "jz4740-i2s.h" + + +#define QI_LB60_SND_GPIO JZ_GPIO_PORTB(29) +#define QI_LB60_AMP_GPIO JZ_GPIO_PORTD(4) + +static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget, + struct snd_kcontrol *ctrl, int event) +{ + int on = 0; + if (event & SND_SOC_DAPM_POST_PMU) + on = 1; + else if (event & SND_SOC_DAPM_PRE_PMD) + on = 0; + + gpio_set_value(QI_LB60_SND_GPIO, on); + gpio_set_value(QI_LB60_AMP_GPIO, on); + + return 0; +} + +static const struct snd_soc_dapm_widget qi_lb60_widgets[] = { + SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event), + SND_SOC_DAPM_MIC("Mic", NULL), +}; + +static const struct snd_soc_dapm_route qi_lb60_routes[] = { + {"Mic", NULL, "MIC"}, + {"Speaker", NULL, "LOUT"}, + {"Speaker", NULL, "ROUT"}, +}; + +#define QI_LB60_DAIFMT (SND_SOC_DAIFMT_I2S | \ + SND_SOC_DAIFMT_NB_NF | \ + SND_SOC_DAIFMT_CBM_CFM) + +static int qi_lb60_codec_init(struct snd_soc_codec *codec) +{ + int ret; + struct snd_soc_dai *cpu_dai = codec->socdev->card->dai_link->cpu_dai; + struct snd_soc_dai *codec_dai = codec->socdev->card->dai_link->codec_dai; + + snd_soc_dapm_nc_pin(codec, "LIN"); + snd_soc_dapm_nc_pin(codec, "RIN"); + + ret = snd_soc_dai_set_fmt(codec_dai, QI_LB60_DAIFMT); + if (ret < 0) { + dev_err(codec->dev, "Failed to set codec dai format: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_fmt(cpu_dai, QI_LB60_DAIFMT); + if (ret < 0) { + dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_sysclk(codec_dai, JZCODEC_SYSCLK, 111, + SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(codec->dev, "Failed to set codec dai sysclk: %d\n", ret); + return ret; + } + + snd_soc_dapm_new_controls(codec, qi_lb60_widgets, ARRAY_SIZE(qi_lb60_widgets)); + + snd_soc_dapm_add_routes(codec, qi_lb60_routes, ARRAY_SIZE(qi_lb60_routes)); + + snd_soc_dapm_sync(codec); + + return 0; +} + +static struct snd_soc_dai_link qi_lb60_dai = { + .name = "jz-codec", + .stream_name = "JZCODEC", + .cpu_dai = &jz4740_i2s_dai, + .codec_dai = &jz_codec_dai, + .init = qi_lb60_codec_init, +}; + +static struct snd_soc_card qi_lb60 = { + .name = "QI LB60", + .dai_link = &qi_lb60_dai, + .num_links = 1, + .platform = &jz4740_soc_platform, +}; + +static struct snd_soc_device qi_lb60_snd_devdata = { + .card = &qi_lb60, + .codec_dev = &soc_codec_dev_jzcodec, +}; + +static struct platform_device *qi_lb60_snd_device; + +static int __init qi_lb60_init(void) +{ + int ret; + + qi_lb60_snd_device = platform_device_alloc("soc-audio", -1); + + if (!qi_lb60_snd_device) + return -ENOMEM; + + + ret = gpio_request(QI_LB60_SND_GPIO, "SND"); + if (ret) { + pr_err("qi_lb60 snd: Failed to request SND GPIO(%d): %d\n", + QI_LB60_SND_GPIO, ret); + goto err_device_put; + } + + ret = gpio_request(QI_LB60_AMP_GPIO, "AMP"); + if (ret) { + pr_err("qi_lb60 snd: Failed to request AMP GPIO(%d): %d\n", + QI_LB60_AMP_GPIO, ret); + goto err_gpio_free_snd; + } + + gpio_direction_output(JZ_GPIO_PORTB(29), 0); + gpio_direction_output(JZ_GPIO_PORTD(4), 0); + + platform_set_drvdata(qi_lb60_snd_device, &qi_lb60_snd_devdata); + qi_lb60_snd_devdata.dev = &qi_lb60_snd_device->dev; + ret = platform_device_add(qi_lb60_snd_device); + if (ret) { + pr_err("qi_lb60 snd: Failed to add snd soc device: %d\n", ret); + goto err_unset_pdata; + } + + return 0; + +err_unset_pdata: + platform_set_drvdata(qi_lb60_snd_device, NULL); +/*err_gpio_free_amp:*/ + gpio_free(QI_LB60_AMP_GPIO); +err_gpio_free_snd: + gpio_free(QI_LB60_SND_GPIO); +err_device_put: + platform_device_put(qi_lb60_snd_device); + + return ret; +} +module_init(qi_lb60_init); + +static void __exit qi_lb60_exit(void) +{ + gpio_free(QI_LB60_AMP_GPIO); + gpio_free(QI_LB60_SND_GPIO); + platform_device_unregister(qi_lb60_snd_device); +} +module_exit(qi_lb60_exit); + +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support"); +MODULE_LICENSE("GPL v2"); |