On Mon, Apr 11, 2011 at 01:30:00PM +0800, Rajeev Kumar wrote:
This patch adds the support for STA529 audio codec. Details of the audio codec can be seen here: http://www.st.com/internet/imag_video/product/159187.jsp
Signed-off-by: Rajeev Kumar rajeev-dlh.kumar@st.com
sound/soc/codecs/Kconfig | 5 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/sta529.c | 383 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 390 insertions(+), 0 deletions(-) create mode 100644 sound/soc/codecs/sta529.c
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index b814ed0..d536740 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -40,6 +40,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_SN95031 if INTEL_SCU_IPC select SND_SOC_SPDIF select SND_SOC_SSM2602 if I2C
select SND_SOC_STA529 if I2C select SND_SOC_STAC9766 if SND_SOC_AC97_BUS select SND_SOC_TLV320AIC23 if I2C select SND_SOC_TLV320AIC26 if SPI_MASTER@@ -206,6 +207,10 @@ config SND_SOC_SPDIF config SND_SOC_SSM2602 tristate
+config SND_SOC_STA529
tristatedepends on I2C
I see many drivers depend on I2C, but they don't add the line above. Any reasons for it?
config SND_SOC_STAC9766 tristate
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 49121ad..f889ef5 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -26,6 +26,7 @@ snd-soc-alc5623-objs := alc5623.o snd-soc-sn95031-objs := sn95031.o snd-soc-spdif-objs := spdif_transciever.o snd-soc-ssm2602-objs := ssm2602.o +snd-soc-sta529-objs := sta529.o snd-soc-stac9766-objs := stac9766.o snd-soc-tlv320aic23-objs := tlv320aic23.o snd-soc-tlv320aic26-objs := tlv320aic26.o @@ -114,6 +115,7 @@ obj-$(CONFIG_SND_SOC_SGTL5000) += snd-soc-sgtl5000.o obj-$(CONFIG_SND_SOC_SN95031) +=snd-soc-sn95031.o obj-$(CONFIG_SND_SOC_SPDIF) += snd-soc-spdif.o obj-$(CONFIG_SND_SOC_SSM2602) += snd-soc-ssm2602.o +obj-$(CONFIG_SND_SOC_STA529) += snd-soc-sta529.o obj-$(CONFIG_SND_SOC_STAC9766) += snd-soc-stac9766.o obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o obj-$(CONFIG_SND_SOC_TLV320AIC26) += snd-soc-tlv320aic26.o diff --git a/sound/soc/codecs/sta529.c b/sound/soc/codecs/sta529.c new file mode 100644 index 0000000..8dda5cd --- /dev/null +++ b/sound/soc/codecs/sta529.c @@ -0,0 +1,383 @@ +/*
- ASoC codec driver for spear platform
- sound/soc/codecs/sta529.c -- spear ALSA Soc codec driver
- Copyright (C) 2011 ST Microelectronics
- Rajeev Kumar rajeev-dlh.kumar@st.com
- This file is licensed under the terms of the GNU General Public
- License version 2. This program is licensed "as is" without any
- warranty of any kind, whether express or implied.
- */
+#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/platform_device.h> +#include <linux/pm.h> +#include <linux/slab.h>
+#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/tlv.h>
+/* STA529 Register offsets */ +#define STA529_FFXCFG0 0x00 +#define STA529_FFXCFG1 0x01 +#define STA529_MVOL 0x02 +#define STA529_LVOL 0x03 +#define STA529_RVOL 0x04 +#define STA529_TTF0 0x05 +#define STA529_TTF1 0x06 +#define STA529_TTP0 0x07 +#define STA529_TTP1 0x08 +#define STA529_S2PCFG0 0x0A +#define STA529_S2PCFG1 0x0B +#define STA529_P2SCFG0 0x0C +#define STA529_P2SCFG1 0x0D +#define STA529_PLLCFG0 0x14 +#define STA529_PLLCFG1 0x15 +#define STA529_PLLCFG2 0x16 +#define STA529_PLLCFG3 0x17 +#define STA529_PLLPFE 0x18 +#define STA529_PLLST 0x19 +#define STA529_ADCCFG 0x1E /*mic_select*/ +#define STA529_CKOCFG 0x1F +#define STA529_MISC 0x20 +#define STA529_PADST0 0x21 +#define STA529_PADST1 0x22 +#define STA529_FFXST 0x23 +#define STA529_PWMIN1 0x2D +#define STA529_PWMIN2 0x2E +#define STA529_POWST 0x32
+#define STA529_CACHEREGNUM 0x33 /*total num of reg. in sta529*/
+#define STA529_RATES SNDRV_PCM_RATE_48000 +#define STA529_FORMAT SNDRV_PCM_FMTBIT_S16_LE +#define S2PC_VALUE 0x98 +#define CLOCK_OUT 0x60 +#define LEFT_J_DATA_FORMAT 0x10 +#define I2S_DATA_FORMAT 0x12 +#define RIGHT_J_DATA_FORMAT 0x14 +#define CODEC_MUTE_VAL 0x80
+#define POWER_CNTLMSAK 0x40 +#define POWER_STDBY 0x40 +#define FFX_MASK 0x80 +#define FFX_OFF 0x80 +#define POWER_UP 0x00
+static const u8 sta529_reg[STA529_CACHEREGNUM] = {
0x75, 0xf8, 0x50, 0x00,0x00, 0x00, 0x02, 0x00,0x02, 0x02, 0xD2, 0x91,0xD3, 0x91, 0x00, 0x00,0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00,0x80, 0x00, 0x00, 0x00,0x00, 0x00, 0x52, 0x40,0x21, 0xef, 0x04, 0x06,0x41, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00,0x00, 0x00,+};
+struct sta529 {
unsigned int sysclk;enum snd_soc_control_type control_type;void *control_data;+};
+static const char *pwm_mode_text[] = { "binary", "headphone", "ternary",
"phase-shift"};+static const char *op_mode_text[] = { "slave", "master"};
+static const struct soc_enum pwm_src_enum = +SOC_ENUM_SINGLE(STA529_FFXCFG1, 4, 4, pwm_mode_text);
+static const struct soc_enum mode_src_enum = +SOC_ENUM_SINGLE(STA529_P2SCFG0, 0, 2, op_mode_text);
+static const struct snd_kcontrol_new sta529_new_snd_controls[] = {
SOC_ENUM("pwm select", pwm_src_enum),SOC_ENUM("mode select", mode_src_enum),+};
+static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -9150, 50, 0); +static const DECLARE_TLV_DB_SCALE(master_vol_tlv, -12750, 50, 0);
+static const struct snd_kcontrol_new sta529_snd_controls[] = {
SOC_DOUBLE_R_TLV("Digital Playback Volume", STA529_LVOL, STA529_RVOL, 0,127, 0, out_gain_tlv),SOC_SINGLE_TLV("Master Playback Volume", STA529_MVOL, 0, 127, 1,master_vol_tlv),+};
+static int sta529_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 pdata = 0;switch (params_format(params)) {case SNDRV_PCM_FORMAT_S16_LE:pdata = 1;break;case SNDRV_PCM_FORMAT_S24_LE:pdata = 2;break;case SNDRV_PCM_FORMAT_S32_LE:pdata = 3;break;}if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)snd_soc_update_bits(codec, STA529_S2PCFG1, 0xB0, pdata);elsesnd_soc_update_bits(codec, STA529_P2SCFG1, 0xB0, pdata);return 0;+}
+static int sta529_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt) +{
struct snd_soc_codec *codec = codec_dai->codec;u8 mode = 0;/* interface format */switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {case SND_SOC_DAIFMT_LEFT_J:mode = LEFT_J_DATA_FORMAT;break;case SND_SOC_DAIFMT_I2S:mode = I2S_DATA_FORMAT;break;case SND_SOC_DAIFMT_RIGHT_J:mode = RIGHT_J_DATA_FORMAT;break;default:return -EINVAL;}mode |= 0x20;snd_soc_update_bits(codec, STA529_S2PCFG0, 0xE0, mode);return 0;+}
+static int sta529_mute(struct snd_soc_dai *dai, int mute) +{
struct snd_soc_codec *codec = dai->codec;u8 mute_reg = snd_soc_read(codec, STA529_FFXCFG0) & ~CODEC_MUTE_VAL;if (mute)mute_reg |= CODEC_MUTE_VAL;snd_soc_update_bits(codec, STA529_FFXCFG0, 0x80, 00);return 0;+}
+static int +sta529_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)+{
switch (level) {case SND_SOC_BIAS_ON:case SND_SOC_BIAS_PREPARE:snd_soc_update_bits(codec, STA529_FFXCFG0, POWER_CNTLMSAK,POWER_UP);snd_soc_update_bits(codec, STA529_MISC, 1, 0x01);break;case SND_SOC_BIAS_STANDBY:case SND_SOC_BIAS_OFF:snd_soc_update_bits(codec, STA529_FFXCFG0, POWER_CNTLMSAK,POWER_STDBY);/* Making FFX output to zero */snd_soc_update_bits(codec, STA529_FFXCFG0, FFX_MASK,FFX_OFF);snd_soc_update_bits(codec, STA529_MISC, 1, 0x00);break;}/*store the label for powers down audio subsystem for suspend.This is** used by soc core layer*/codec->bias_level = level;return 0;+}
+static struct snd_soc_dai_ops sta529_dai_ops = {
.hw_params = sta529_hw_params,.set_fmt = sta529_set_dai_fmt,.digital_mute = sta529_mute,+};
+static struct snd_soc_dai_driver sta529_dai = {
.name = "sta529-audio",.playback = {.stream_name = "Playback",.channels_min = 2,.channels_max = 2,.rates = STA529_RATES,.formats = STA529_FORMAT,},.capture = {.stream_name = "Capture",.channels_min = 2,.channels_max = 2,.rates = STA529_RATES,.formats = STA529_FORMAT,},.ops = &sta529_dai_ops,+};
+static int sta529_probe(struct snd_soc_codec *codec) +{
struct sta529 *sta529 = snd_soc_codec_get_drvdata(codec);int ret;codec->hw_write = (hw_write_t)i2c_master_send;codec->hw_read = NULL;ret = snd_soc_codec_set_cache_io(codec, 8, 8, sta529->control_type);if (ret < 0) {dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);return ret;}sta529_set_bias_level(codec, SND_SOC_BIAS_STANDBY);snd_soc_add_controls(codec, sta529_snd_controls,ARRAY_SIZE(sta529_snd_controls));snd_soc_add_controls(codec, sta529_new_snd_controls,ARRAY_SIZE(sta529_new_snd_controls));return 0;+}
+/* power down chip */ +static int sta529_remove(struct snd_soc_codec *codec) +{
sta529_set_bias_level(codec, SND_SOC_BIAS_OFF);return 0;+}
+static int sta529_suspend(struct snd_soc_codec *codec, pm_message_t state) +{
sta529_set_bias_level(codec, SND_SOC_BIAS_OFF);return 0;+}
+static int sta529_resume(struct snd_soc_codec *codec) +{
int i;u8 data[2];u8 *cache = codec->reg_cache;for (i = 0; i < ARRAY_SIZE(sta529_reg); i++) {data[0] = i;data[1] = cache[i];codec->hw_write(codec->control_data, data, 2);}sta529_set_bias_level(codec, SND_SOC_BIAS_STANDBY);sta529_set_bias_level(codec, codec->suspend_bias_level);return 0;+}
+struct snd_soc_codec_driver soc_codec_dev_sta529 = {
.probe = sta529_probe,.remove = sta529_remove,.set_bias_level = sta529_set_bias_level,.suspend = sta529_suspend,.resume = sta529_resume,.reg_cache_size = STA529_CACHEREGNUM,.reg_word_size = sizeof(u8),.reg_cache_default = sta529_reg,+};
+static __devinit int sta529_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)+{
struct sta529 *sta529;int ret;if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))return -EINVAL;sta529 = kzalloc(sizeof(struct sta529), GFP_KERNEL);if (sta529 == NULL)return -ENOMEM;i2c_set_clientdata(i2c, sta529);sta529->control_data = i2c;sta529->control_type = SND_SOC_I2C;ret = snd_soc_register_codec(&i2c->dev,&soc_codec_dev_sta529, &sta529_dai, 1);if (ret < 0)kfree(sta529);return ret;+}
+static int sta529_i2c_remove(struct i2c_client *client) +{
snd_soc_unregister_codec(&client->dev);kfree(i2c_get_clientdata(client));return 0;+}
+static const struct i2c_device_id sta529_i2c_id[] = {
{ "sta529", 0 },{ }+}; +MODULE_DEVICE_TABLE(i2c, sta529_i2c_id);
+static struct i2c_driver sta529_i2c_driver = {
.driver = {.name = "sta529",.owner = THIS_MODULE,},.probe = sta529_i2c_probe,.remove = __devexit_p(sta529_i2c_remove),.id_table = sta529_i2c_id,+};
+static int __init sta529_modinit(void) +{
int ret = 0;ret = i2c_add_driver(&sta529_i2c_driver);
As an idiom, I often see the above code surrounded with an #ifdef, see below code snippet from sound/soc/codecs/wm8974.c
static int __init wm8974_modinit(void) { int ret = 0; #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) ret = i2c_add_driver(&wm8974_i2c_driver); if (ret != 0) { printk(KERN_ERR "Failed to register wm8974 I2C driver: %d\n", ret); } #endif return ret; }
Maybe you should add the simlar structure as well.
if (ret != 0)printk(KERN_ERR "Failed to reg sta529 I2C driver: %d\n", ret);return ret;+} +module_init(sta529_modinit);
+static void __exit sta529_exit(void) +{
i2c_del_driver(&sta529_i2c_driver);+} +module_exit(sta529_exit);
+MODULE_DESCRIPTION("ASoC STA529 codec driver"); +MODULE_AUTHOR("Rajeev Kumar rajeev-dlh.kumar@st.com");
+MODULE_LICENSE("GPL");
1.6.0.2
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