[PATCH] Add driver for Analog Devices ADAU1701 SigmaDSP
From: cliff.cai
Date: Sun Mar 06 2011 - 21:13:22 EST
From: Cliff Cai <cliff.cai@xxxxxxxxxx>
ADAU1701 is an SigmaDSP processor,it supports I2S audio interface.
It needs to include "linux/sigma.h" which is still in Andrew Morton's
tree.
Signed-off-by: Cliff Cai<cliff.cai@xxxxxxxxxx>
---
sound/soc/codecs/Kconfig | 4 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/adau1701.c | 417 +++++++++++++++++++++++++++++++++++++++++++
sound/soc/codecs/adau1701.h | 111 ++++++++++++
4 files changed, 534 insertions(+), 0 deletions(-)
create mode 100644 sound/soc/codecs/adau1701.c
create mode 100644 sound/soc/codecs/adau1701.h
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index bbc97fd..ba931c4 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -20,6 +20,7 @@ config SND_SOC_ALL_CODECS
select SND_SOC_PCM3008
select SND_SOC_SPDIF
select SND_SOC_SSM2602 if I2C
+ select SND_SOC_ADAU1701 if I2C
select SND_SOC_STAC9766 if SND_SOC_AC97_BUS
select SND_SOC_TLV320AIC23 if I2C
select SND_SOC_TLV320AIC26 if SPI_MASTER
@@ -98,6 +99,9 @@ config SND_SOC_SPDIF
config SND_SOC_SSM2602
tristate
+config SND_SOC_ADAU1701
+ tristate
+
config SND_SOC_STAC9766
tristate
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 8b75305..ed48581 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -8,6 +8,7 @@ snd-soc-l3-objs := l3.o
snd-soc-pcm3008-objs := pcm3008.o
snd-soc-spdif-objs := spdif_transciever.o
snd-soc-ssm2602-objs := ssm2602.o
+snd-soc-adau1701-objs := adau1701.o
snd-soc-stac9766-objs := stac9766.o
snd-soc-tlv320aic23-objs := tlv320aic23.o
snd-soc-tlv320aic26-objs := tlv320aic26.o
@@ -45,6 +46,7 @@ obj-$(CONFIG_SND_SOC_L3) += snd-soc-l3.o
obj-$(CONFIG_SND_SOC_PCM3008) += snd-soc-pcm3008.o
obj-$(CONFIG_SND_SOC_SPDIF) += snd-soc-spdif.o
obj-$(CONFIG_SND_SOC_SSM2602) += snd-soc-ssm2602.o
+obj-$(CONFIG_SND_SOC_ADAU1701) += snd-soc-adau1701.o
obj-$(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/adau1701.c b/sound/soc/codecs/adau1701.c
new file mode 100644
index 0000000..b7c671d
--- /dev/null
+++ b/sound/soc/codecs/adau1701.c
@@ -0,0 +1,417 @@
+/*
+ * Driver for ADAU1701 SigmaDSP processor
+ *
+ * Copyright 2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/workqueue.h>
+#include <linux/platform_device.h>
+#include <linux/sigma.h>
+#include <linux/sysfs.h>
+#include <linux/slab.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 "adau1701.h"
+
+#define AUDIO_NAME "adau1701"
+#define ADAU1701_VERSION "0.10"
+#define ADAU1701_FIRMWARE "SigmaDSP_fw.bin"
+
+/* codec private data */
+struct adau1701_priv {
+ struct snd_soc_codec *codec;
+ enum snd_soc_control_type control_type;
+};
+
+/*
+ * Write a ADAU1701 register,since the register length is from 1 to 5,
+ * So, use our own read/write functions instead of snd_soc_read/write.
+ */
+static int adau1701_write_register(struct snd_soc_codec *codec,
+ u16 reg_address, u8 length, u32 value)
+{
+ int ret;
+ int count = length + 2; /*data plus 16bit register address*/
+ u8 buf[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+
+ if (length == 0)
+ return -1;
+ buf[0] = (reg_address >> 8) & 0xFF;
+ buf[1] = reg_address & 0xFF;
+ if (length == 1)
+ buf[2] = value & 0xFF;
+ else if (length == 2) {
+ buf[2] = (value >> 8) & 0xFF;
+ buf[3] = value & 0xFF;
+ } else if (length == 3) {
+ buf[2] = (value >> 16) & 0xFF;
+ buf[3] = (value >> 8) & 0xFF;
+ buf[4] = value & 0xFF;
+ }
+ ret = i2c_master_send(codec->control_data, buf, count);
+
+ return ret;
+
+}
+
+/*
+ * read ADAU1701 hw register
+ */
+static u32 adau1701_read_register(struct snd_soc_codec *codec,
+ u16 reg_address, u8 length)
+{
+ u8 addr[2];
+ u8 buf[2];
+ u32 value = 0;
+ int ret;
+
+ if (reg_address < ADAU1701_FIRSTREG)
+ reg_address = reg_address + ADAU1701_FIRSTREG;
+
+ if ((reg_address < ADAU1701_FIRSTREG) || (reg_address > ADAU1701_LASTREG))
+ return -EIO;
+
+ addr[0] = (reg_address >> 8) & 0xFF;
+ addr[1] = reg_address & 0xFF;
+
+ /* write the 2byte read address */
+ ret = i2c_master_send(codec->control_data, addr, 2);
+ if (ret)
+ return ret;
+
+ if (length == 1) {
+ if (i2c_master_recv(codec->control_data, buf, 1) != 1)
+ return -EIO;
+ value = buf[0];
+ } else if (length == 2) {
+ if (i2c_master_recv(codec->control_data, buf, 2) != 2)
+ return -EIO;
+ value = (buf[0] << 8) | buf[1];
+ }
+ return value;
+}
+
+static int adau1701_setprogram(struct snd_soc_codec *codec)
+{
+ int ret = 0;
+
+ ret = process_sigma_firmware(codec->control_data, ADAU1701_FIRMWARE);
+
+ return ret;
+}
+
+static int adau1701_pcm_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ int reg = 0;
+
+ reg = SEROCTL_MASTER | SEROCTL_OBF16 | SEROCTL_OLF1024;
+ adau1701_write_register(codec, ADAU1701_SEROCTL, 2, reg);
+
+ return 0;
+}
+
+static void adau1701_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_codec *codec = dai->codec;
+
+ adau1701_write_register(codec, ADAU1701_SEROCTL, 2, 0);
+}
+
+static int adau1701_mute(struct snd_soc_dai *dai, int mute)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ u16 reg = 0;
+
+ if (mute) {
+ /* mute inputs/outputs */
+ reg = adau1701_read_register(codec, ADAU1701_AUXNPOW, 2);
+ reg |= AUXNPOW_AAPD | AUXNPOW_D0PD | AUXNPOW_D1PD | AUXNPOW_D2PD | AUXNPOW_D3PD;
+ adau1701_write_register(codec, ADAU1701_AUXNPOW, 2, reg);
+ } else {
+ /* unmute inputs/outputs */
+ reg = adau1701_read_register(codec, ADAU1701_AUXNPOW, 2);
+ reg &= ~(AUXNPOW_AAPD | AUXNPOW_D0PD | AUXNPOW_D1PD | AUXNPOW_D2PD | AUXNPOW_D3PD);
+ adau1701_write_register(codec, ADAU1701_AUXNPOW, 2, reg);
+ }
+
+ return 0;
+}
+
+static int adau1701_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u32 reg = 0;
+
+ reg = adau1701_read_register(codec, ADAU1701_SERITL1, 1);
+ /* interface format */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ reg |= SERITL1_LEFTJ;
+ break;
+ /* TODO: support TDM */
+ default:
+ return 0;
+ }
+
+ /* clock inversion */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ /* TODO: support signal inversions */
+ default:
+ return 0;
+ }
+
+ /* set iface format*/
+ adau1701_write_register(codec, ADAU1701_SERITL1, 1, reg);
+ return 0;
+}
+
+static int adau1701_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ u16 reg;
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ reg = adau1701_read_register(codec, ADAU1701_AUXNPOW, 2);
+ reg &= ~(AUXNPOW_AAPD | AUXNPOW_D0PD | AUXNPOW_D1PD | AUXNPOW_D2PD |
+ AUXNPOW_D3PD | AUXNPOW_VBPD | AUXNPOW_VRPD);
+ adau1701_write_register(codec, ADAU1701_AUXNPOW, 2, reg);
+ break;
+ case SND_SOC_BIAS_PREPARE:
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ break;
+ case SND_SOC_BIAS_OFF:
+ /* everything off, dac mute, inactive */
+ reg = adau1701_read_register(codec, ADAU1701_AUXNPOW, 2);
+ reg |= AUXNPOW_AAPD | AUXNPOW_D0PD | AUXNPOW_D1PD | AUXNPOW_D2PD |
+ AUXNPOW_D3PD | AUXNPOW_VBPD | AUXNPOW_VRPD;
+ adau1701_write_register(codec, ADAU1701_AUXNPOW, 2, reg);
+ break;
+
+ }
+ codec->bias_level = level;
+ return 0;
+}
+
+#define ADAU1701_RATES SNDRV_PCM_RATE_48000
+
+#define ADAU1701_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+static struct snd_soc_dai_ops adau1701_dai_ops = {
+ .prepare = adau1701_pcm_prepare,
+ .shutdown = adau1701_shutdown,
+ .digital_mute = adau1701_mute,
+ .set_fmt = adau1701_set_dai_fmt,
+};
+
+struct snd_soc_dai_driver adau1701_dai = {
+ .name = "ADAU1701",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = ADAU1701_RATES,
+ .formats = ADAU1701_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = ADAU1701_RATES,
+ .formats = ADAU1701_FORMATS,
+ },
+ .ops = &adau1701_dai_ops,
+};
+EXPORT_SYMBOL_GPL(adau1701_dai);
+
+static int adau1701_suspend(struct snd_soc_codec *codec, pm_message_t state)
+{
+ adau1701_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ return 0;
+}
+
+static int adau1701_resume(struct snd_soc_codec *codec)
+{
+ adau1701_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+ return 0;
+}
+
+static ssize_t adau1371_dsp_load(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int ret = 0;
+ struct adau1701_priv *adau1701 = dev_get_drvdata(dev);
+ struct snd_soc_codec *codec = adau1701->codec;
+ ret = adau1701_setprogram(codec);
+ if (ret)
+ return ret;
+ else
+ return count;
+}
+static DEVICE_ATTR(dsp, 0644, NULL, adau1371_dsp_load);
+
+static int adau1701_reg_init(struct snd_soc_codec *codec)
+{
+ u32 reg;
+ int ret = 0;
+
+ reg = DSPCTRL_DAM | DSPCTRL_ADM;
+ adau1701_write_register(codec, ADAU1701_DSPCTRL, 2, reg);
+ /* Load default program */
+ ret = adau1701_setprogram(codec);
+ if (ret < 0) {
+ printk(KERN_ERR "Loading program data failed\n");
+ goto error;
+ }
+ reg = DSPCTRL_DAM | DSPCTRL_ADM;
+ adau1701_write_register(codec, ADAU1701_DSPCTRL, 2, reg);
+ reg = 0x08;
+ adau1701_write_register(codec, ADAU1701_DSPRES, 1, reg);
+ adau1701_write_register(codec, ADAU1701_SEROCTL, 2, 0);
+ adau1701_write_register(codec, ADAU1701_SERITL1, 1, 0);
+ /* Configure the multipurpose pins as serial in/out pins */
+ reg = MPCONF_SDATAP | MPCONF_SDATAP << 16 | MPCONF_SDATAP << 20;
+ adau1701_write_register(codec, ADAU1701_MPCONF0, 3, reg);
+ reg = MPCONF_AUXADC << 8 | MPCONF_SDATAP << 12 | MPCONF_SDATAP << 16 |
+ MPCONF_SDATAP << 20;
+ adau1701_write_register(codec, ADAU1701_MPCONF1, 3, reg);
+ adau1701_write_register(codec, ADAU1701_AUXNPOW, 2, 0);
+ reg = AUXADCE_AAEN;
+ adau1701_write_register(codec, ADAU1701_AUXADCE, 2, reg);
+ reg = DACSET_DACEN;
+ adau1701_write_register(codec, ADAU1701_DACSET, 2, reg);
+ reg = DSPCTRL_DAM | DSPCTRL_ADM | DSPCTRL_CR;
+ adau1701_write_register(codec, ADAU1701_DSPCTRL, 2, reg);
+ /* Power-up the oscillator */
+ adau1701_write_register(codec, ADAU1701_OSCIPOW, 2, 0);
+error:
+ return ret;
+}
+
+static int adau1701_probe(struct snd_soc_codec *codec)
+{
+ int ret = 0;
+
+ struct adau1701_priv *adau1701 = snd_soc_codec_get_drvdata(codec);
+
+ adau1701->codec = codec;
+ ret = snd_soc_codec_set_cache_io(codec, 16, 16, adau1701->control_type);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+ return ret;
+ }
+ ret = adau1701_reg_init(codec);
+ if (ret < 0) {
+ dev_err(codec->dev, "failed to initialize\n");
+ return ret;
+ }
+ ret = device_create_file(codec->dev, &dev_attr_dsp);
+ if (ret)
+ dev_err(codec->dev, "device_create_file() failed\n");
+
+ return ret;
+}
+
+static int adau1701_remove(struct snd_soc_codec *codec)
+{
+ adau1701_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ return 0;
+}
+
+struct snd_soc_codec_driver soc_codec_dev_adau1701 = {
+ .probe = adau1701_probe,
+ .remove = adau1701_remove,
+ .suspend = adau1701_suspend,
+ .resume = adau1701_resume,
+ .set_bias_level = adau1701_set_bias_level,
+};
+
+static __devinit int adau1701_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct adau1701_priv *adau1701;
+ int ret = 0;
+
+ adau1701 = kzalloc(sizeof(struct adau1701_priv), GFP_KERNEL);
+ if (adau1701 == NULL)
+ return -ENOMEM;
+
+ adau1701->control_type = SND_SOC_I2C;
+ i2c_set_clientdata(i2c, adau1701);
+ ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_adau1701, &adau1701_dai, 1);
+ if (ret < 0)
+ kfree(adau1701);
+
+ return ret;
+}
+
+static __devexit int adau1701_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 adau1701_i2c_id[] = {
+ { "adau1701", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, adau1701_i2c_id);
+
+/* corgi i2c codec control layer */
+static struct i2c_driver adau1701_i2c_driver = {
+ .driver = {
+ .name = "adau1701-codec",
+ .owner = THIS_MODULE,
+ },
+ .probe = adau1701_i2c_probe,
+ .remove = __devexit_p(adau1701_i2c_remove),
+ .id_table = adau1701_i2c_id,
+};
+
+static int __init adau1701_modinit(void)
+{
+ int ret;
+
+ ret = i2c_add_driver(&adau1701_i2c_driver);
+ if (ret != 0) {
+ printk(KERN_ERR "Failed to register adau1701 I2C driver: %d\n",
+ ret);
+ }
+
+ return ret;
+}
+module_init(adau1701_modinit);
+
+static void __exit adau1701_exit(void)
+{
+ i2c_del_driver(&adau1701_i2c_driver);
+}
+module_exit(adau1701_exit);
+
+MODULE_DESCRIPTION("ASoC ADAU1701 SigmaDSP driver");
+MODULE_AUTHOR("Cliff Cai");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/adau1701.h b/sound/soc/codecs/adau1701.h
new file mode 100644
index 0000000..174199e
--- /dev/null
+++ b/sound/soc/codecs/adau1701.h
@@ -0,0 +1,111 @@
+/*
+ * header file for adau1701 SigmaDSP processor
+ *
+ * Copyright 2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _ADAU1701_H
+#define _ADAU1701_H
+
+/*
+ * Register definition.
+ */
+#define ADAU1701_FIRSTREG 0x0800
+#define ADAU1701_LASTREG 0x0827
+#define ADAU1701_IFACE0 0x0800
+#define ADAU1701_IFACE1 0x0801
+#define ADAU1701_IFACE2 0x0802
+#define ADAU1701_IFACE3 0x0803
+#define ADAU1701_IFACE4 0x0804
+#define ADAU1701_IFACE5 0x0805
+#define ADAU1701_IFACE6 0x0806
+#define ADAU1701_IFACE7 0x0807
+
+#define ADAU1701_GPIOSET 0x0808
+#define ADAU1701_AUXADC0 0x0809
+#define ADAU1701_AUXADC1 0x080A
+#define ADAU1701_AUXADC2 0x080B
+#define ADAU1701_AUXADC3 0x080C
+
+#define ADAU1701_SAFELD0 0x0810
+#define ADAU1701_SAFELD1 0x0811
+#define ADAU1701_SAFELD2 0x0812
+#define ADAU1701_SAFELD3 0x0813
+#define ADAU1701_SAFELD4 0x0814
+
+#define ADAU1701_SLDADD0 0x0815
+#define ADAU1701_SLDADD1 0x0816
+#define ADAU1701_SLDADD2 0x0817
+#define ADAU1701_SLDADD3 0x0818
+#define ADAU1701_SLDADD4 0x0819
+
+#define ADAU1701_DATCAP0 0x081A
+#define ADAU1701_DATCAP1 0x081B
+
+#define ADAU1701_DSPCTRL 0x081C
+#define ADAU1701_DSPRES 0x081D
+#define ADAU1701_SEROCTL 0x081E
+#define ADAU1701_SERITL1 0x081F
+
+#define ADAU1701_MPCONF0 0x0820
+#define ADAU1701_MPCONF1 0x0821
+
+#define ADAU1701_AUXNPOW 0x0822
+#define ADAU1701_AUXADCE 0x0824
+
+#define ADAU1701_OSCIPOW 0x0826
+#define ADAU1701_DACSET 0x0827
+
+
+#define ADAU1701_NUMCACHEREG 0x29
+
+/* Bit fields */
+#define DSPCTRL_CR (1 << 2)
+#define DSPCTRL_DAM (1 << 3)
+#define DSPCTRL_ADM (1 << 4)
+#define DSPCTRL_IST (1 << 5)
+#define DSPCTRL_IFCW (1 << 6)
+#define DSPCTRL_GPCW (1 << 7)
+#define DSPCTRL_AACW (1 << 8)
+
+#define MPCONF_GPIOIDE (0)
+#define MPCONF_GPIOINDE (1)
+#define MPCONF_GPIOOPT (2)
+#define MPCONF_OCOPT (3)
+#define MPCONF_SDATAP (4)
+#define MPCONF_GPIOIDEI (8)
+#define MPCONF_GPIOINDEI (9)
+#define MPCONF_GPIOOPTI (0xA)
+#define MPCONF_OCOPTI (0xB)
+#define MPCONF_SDATAPI (0xC)
+#define MPCONF_AUXADC (0xF)
+
+#define SEROCTL_MASTER (0x0800)
+#define SEROCTL_OBF16 (0x0000)
+#define SEROCTL_OBF8 (0x0200)
+#define SEROCTL_OBF4 (0x0400)
+#define SEROCTL_OBF2 (0x0600)
+
+#define SEROCTL_OLF1024 (0x0000)
+#define SEROCTL_OLF512 (0x0080)
+#define SEROCTL_OLF256 (0x0100)
+#define SEROCTL_OLFRSV (0x0180)
+
+#define AUXNPOW_AAPD (0x80)
+#define AUXNPOW_VBPD (0x40)
+#define AUXNPOW_VRPD (0x20)
+#define AUXNPOW_D3PD (0x1)
+#define AUXNPOW_D2PD (0x2)
+#define AUXNPOW_D1PD (0x4)
+#define AUXNPOW_D0PD (0x8)
+
+#define SERITL1_LEFTJ (1)
+#define SERITL1_TDM (2)
+
+#define AUXADCE_AAEN (1 << 15)
+#define OSCIPOW_OPD (0x04)
+#define DACSET_DACEN (1)
+
+#endif
--
1.7.1
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