[alsa-devel] [PATCH 1/8] sound:asoc: Add support for STA529 Audio Codec
Rajeev Kumar
rajeev-dlh.kumar at st.com
Tue Mar 20 12:33:45 CET 2012
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 at st.com>
---
sound/soc/codecs/Kconfig | 5 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/sta529.c | 414 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 421 insertions(+), 0 deletions(-)
create mode 100644 sound/soc/codecs/sta529.c
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 59d8efa..2c003d1 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -49,6 +49,7 @@ config SND_SOC_ALL_CODECS
select SND_SOC_SPDIF
select SND_SOC_SSM2602 if SND_SOC_I2C_AND_SPI
select SND_SOC_STA32X 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
@@ -252,6 +253,10 @@ config SND_SOC_SSM2602
config SND_SOC_STA32X
tristate
+config SND_SOC_STA529
+ tristate
+ depends on I2C
+
config SND_SOC_STAC9766
tristate
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 0c0e6ce..a0e43cd 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -39,6 +39,7 @@ snd-soc-sn95031-objs := sn95031.o
snd-soc-spdif-objs := spdif_transciever.o spdif_receiver.o
snd-soc-ssm2602-objs := ssm2602.o
snd-soc-sta32x-objs := sta32x.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
@@ -143,6 +144,7 @@ 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_STA32X) += snd-soc-sta32x.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..1294947
--- /dev/null
+++ b/sound/soc/codecs/sta529.c
@@ -0,0 +1,414 @@
+/*
+ * ASoC codec driver for spear platform
+ *
+ * sound/soc/codecs/sta529.c -- spear ALSA Soc codec driver
+ *
+ * Copyright (C) 2012 ST Microelectronics
+ * Rajeev Kumar <rajeev-dlh.kumar at 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_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 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] = {
+ 0x35, 0xc8, 0x50, 0x00,
+ 0x00, 0x00, 0x02, 0x00,
+ 0x02, 0x05, 0xb2, 0x41,
+ 0x92, 0x41, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x80, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xD2, 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 *interface_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, interface_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_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->dapm.bias_level = level;
+ return 0;
+
+}
+
+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, play_freq_val, record_freq_val;
+
+ 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;
+ }
+
+ switch (params_rate(params)) {
+ case 8000:
+ case 11025:
+ play_freq_val = 0;
+ record_freq_val = 2;
+ break;
+ case 16000:
+ case 22050:
+ play_freq_val = 1;
+ record_freq_val = 0;
+ break;
+
+ case 32000:
+ case 44100:
+ case 48000:
+ play_freq_val = 2;
+ record_freq_val = 0;
+ break;
+ default:
+ printk(KERN_WARNING, "bad rate\n");
+ return -EINVAL;
+ }
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ snd_soc_update_bits(codec, STA529_S2PCFG1, 0xC0, (pdata << 6));
+ snd_soc_update_bits(codec, STA529_MISC, 0x0C,
+ (play_freq_val << 4));
+ } else {
+ snd_soc_update_bits(codec, STA529_P2SCFG1, 0xC0, (pdata << 6));
+ snd_soc_update_bits(codec, STA529_MISC, 0x0C,
+ (record_freq_val << 2));
+
+ }
+
+ sta529_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
+ mdelay(10);
+
+ 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_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 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;
+
+ 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)
+{
+ snd_soc_cache_sync(codec);
+ sta529_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+ sta529_set_bias_level(codec, codec->dapm.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);
+ 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 at st.com>");
+MODULE_LICENSE("GPL");
--
1.7.2.2
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