Initial version of TWL6030 codec driver.
The TWL6030 codec uses a propietary PDM-based digital audio interface.
TWL6030 codec has two power modes: low-power and high-performance,
this initial version only supports high-performance mode.
Signed-off-by: Misael Lopez Cruz <x0052729@xxxxxx>
---
sound/soc/codecs/Kconfig | 4 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/twl6030.c | 842 ++++++++++++++++++++++++++++++++++++++++++++
sound/soc/codecs/twl6030.h | 94 +++++
4 files changed, 942 insertions(+), 0 deletions(-)
create mode 100644 sound/soc/codecs/twl6030.c
create mode 100644 sound/soc/codecs/twl6030.h
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index bbc97fd..fd9f8c1 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -25,6 +25,7 @@ config SND_SOC_ALL_CODECS
select SND_SOC_TLV320AIC26 if SPI_MASTER
select SND_SOC_TLV320AIC3X if I2C
select SND_SOC_TWL4030 if TWL4030_CORE
+ select SND_SOC_TWL6030 if TWL6030_CORE && GPIOLIB
select SND_SOC_UDA134X
select SND_SOC_UDA1380 if I2C
select SND_SOC_WM8350 if MFD_WM8350
@@ -114,6 +115,9 @@ config SND_SOC_TLV320AIC3X
config SND_SOC_TWL4030
tristate
+config SND_SOC_TWL6030
+ tristate
+
config SND_SOC_UDA134X
tristate
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 8b75305..b70c8a1 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -13,6 +13,7 @@ snd-soc-tlv320aic23-objs := tlv320aic23.o
snd-soc-tlv320aic26-objs := tlv320aic26.o
snd-soc-tlv320aic3x-objs := tlv320aic3x.o
snd-soc-twl4030-objs := twl4030.o
+snd-soc-twl6030-objs := twl6030.o
snd-soc-uda134x-objs := uda134x.o
snd-soc-uda1380-objs := uda1380.o
snd-soc-wm8350-objs := wm8350.o
@@ -50,6 +51,7 @@ obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o
obj-$(CONFIG_SND_SOC_TLV320AIC26) += snd-soc-tlv320aic26.o
obj-$(CONFIG_SND_SOC_TLV320AIC3X) += snd-soc-tlv320aic3x.o
obj-$(CONFIG_SND_SOC_TWL4030) += snd-soc-twl4030.o
+obj-$(CONFIG_SND_SOC_TWL6030) += snd-soc-twl6030.o
obj-$(CONFIG_SND_SOC_UDA134X) += snd-soc-uda134x.o
obj-$(CONFIG_SND_SOC_UDA1380) += snd-soc-uda1380.o
obj-$(CONFIG_SND_SOC_WM8350) += snd-soc-wm8350.o
diff --git a/sound/soc/codecs/twl6030.c b/sound/soc/codecs/twl6030.c
new file mode 100644
index 0000000..92797e7
--- /dev/null
+++ b/sound/soc/codecs/twl6030.c
@@ -0,0 +1,842 @@
+/*
+ * ALSA SoC TWL6030 codec driver
+ *
+ * Author: Misael Lopez Cruz <x0052729@xxxxxx>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#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/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/i2c/twl.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 <sound/tlv.h>
+
+#include "twl6030.h"
+
+#define TWL6030_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
+#define TWL6030_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
+
+/* codec private data */
+struct twl6030_data {
+ struct snd_soc_codec codec;
+ int codec_powered;
+};
+
+/*
+ * twl6030 register cache & default register settings
+ */
+static const u8 twl6030_reg[TWL6030_CACHEREGNUM] = {
+ 0x00, /* not used 0x00 */
+ 0x4B, /* TWL6030_ASICID (ro) 0x01 */
+ 0x00, /* TWL6030_ASICREV (ro) 0x02 */
+ 0x00, /* TWL6030_INTID 0x03 */
+ 0x41, /* TWL6030_INTMR 0x04 */
+ 0x00, /* TWL6030_NCPCTRL 0x05 */
+ 0x00, /* TWL6030_LDOCTL 0x06 */
+ 0x00, /* TWL6030_HPPLLCTL 0x07 */
+ 0x00, /* TWL6030_LPPLLCTL 0x08 */
+ 0x00, /* TWL6030_LPPLLDIV 0x09 */
+ 0x00, /* TWL6030_AMICBCTL 0x0A */
+ 0x00, /* TWL6030_DMICBCTL 0x0B */
+ 0x18, /* TWL6030_MICLCTL 0x0C */
+ 0x18, /* TWL6030_MICRCTL 0x0D */
+ 0x00, /* TWL6030_MICGAIN 0x0E */
+ 0x1B, /* TWL6030_LINEGAIN 0x0F */
+ 0x00, /* TWL6030_HSLCTL 0x10 */
+ 0x00, /* TWL6030_HSRCTL 0x11 */
+ 0x00, /* TWL6030_HSGAIN 0x12 */
+ 0x06, /* TWL6030_EARCTL 0x13 */
+ 0x00, /* TWL6030_HFLCTL 0x14 */
+ 0x03, /* TWL6030_HFLGAIN 0x15 */
+ 0x00, /* TWL6030_HFRCTL 0x16 */
+ 0x03, /* TWL6030_HFRGAIN 0x17 */
+ 0x00, /* TWL6030_VIBCTLL 0x18 */
+ 0x00, /* TWL6030_VIBDATL 0x19 */
+ 0x00, /* TWL6030_VIBCTLR 0x1A */
+ 0x00, /* TWL6030_VIBDATR 0x1B */
+ 0x00, /* TWL6030_HKCTL1 0x1C */
+ 0x00, /* TWL6030_HKCTL2 0x1D */
+ 0x00, /* TWL6030_GPOCTL 0x1E */
+ 0x00, /* TWL6030_ALB 0x1F */
+ 0x00, /* TWL6030_DLB 0x20 */
+ 0x00, /* not used 0x21 */
+ 0x00, /* not used 0x22 */
+ 0x00, /* not used 0x23 */
+ 0x00, /* not used 0x24 */
+ 0x00, /* not used 0x25 */
+ 0x00, /* not used 0x26 */
+ 0x00, /* not used 0x27 */
+ 0x00, /* TWL6030_TRIM1 0x28 */
+ 0x00, /* TWL6030_TRIM2 0x29 */
+ 0x00, /* TWL6030_TRIM3 0x2A */
+ 0x00, /* TWL6030_HSOTRIM 0x2B */
+ 0x00, /* TWL6030_HFOTRIM 0x2C */
+ 0x09, /* TWL6030_ACCCTL 0x2D */
+ 0x00, /* TWL6030_STATUS (ro) 0x2E */
+};
+
+/*
+ * twl6030 vio/gnd registers:
+ * registers under vio/gnd supply can be accessed
+ * before the power-up sequence, after NRESPWRON goes high
+ */
+static const int twl6030_vio_reg[TWL6030_VIOREGNUM] = {
+ TWL6030_REG_ASICID,
+ TWL6030_REG_ASICREV,
+ TWL6030_REG_INTID,
+ TWL6030_REG_INTMR,
+ TWL6030_REG_NCPCTL,
+ TWL6030_REG_LDOCTL,
+ TWL6030_REG_AMICBCTL,
+ TWL6030_REG_DMICBCTL,
+ TWL6030_REG_HKCTL1,
+ TWL6030_REG_HKCTL2,
+ TWL6030_REG_GPOCTL,
+ TWL6030_REG_TRIM1,
+ TWL6030_REG_TRIM2,
+ TWL6030_REG_TRIM3,
+ TWL6030_REG_HSOTRIM,
+ TWL6030_REG_HFOTRIM,
+ TWL6030_REG_ACCCTL,
+ TWL6030_REG_STATUS,
+};
+
+/*
+ * twl6030 vdd/vss registers:
+ * registers under vdd/vss supplies can only be accessed
+ * after the power-up sequence
+ */
+static const int twl6030_vdd_reg[TWL6030_VDDREGNUM] = {
+ TWL6030_REG_HPPLLCTL,
+ TWL6030_REG_LPPLLCTL,
+ TWL6030_REG_LPPLLDIV,
+ TWL6030_REG_MICLCTL,
+ TWL6030_REG_MICRCTL,
+ TWL6030_REG_MICGAIN,
+ TWL6030_REG_LINEGAIN,
+ TWL6030_REG_HSLCTL,
+ TWL6030_REG_HSRCTL,
+ TWL6030_REG_HSGAIN,
+ TWL6030_REG_EARCTL,
+ TWL6030_REG_HFLCTL,
+ TWL6030_REG_HFLGAIN,
+ TWL6030_REG_HFRCTL,
+ TWL6030_REG_HFRGAIN,
+ TWL6030_REG_VIBCTLL,
+ TWL6030_REG_VIBDATL,
+ TWL6030_REG_VIBCTLR,
+ TWL6030_REG_VIBDATR,
+ TWL6030_REG_ALB,
+ TWL6030_REG_DLB,
+};
+
+/*
+ * read twl6030 register cache
+ */
+static inline unsigned int twl6030_read_reg_cache(struct snd_soc_codec *codec,
+ unsigned int reg)
+{
+ u8 *cache = codec->reg_cache;
+
+ if (reg >= TWL6030_CACHEREGNUM)
+ return -EIO;
+
+ return cache[reg];
+}
+
+/*
+ * write twl6030 register cache
+ */
+static inline void twl6030_write_reg_cache(struct snd_soc_codec *codec,
+ u8 reg, u8 value)
+{
+ u8 *cache = codec->reg_cache;
+
+ if (reg >= TWL6030_CACHEREGNUM)
+ return;
+ cache[reg] = value;
+}
+
+/*
+ * write to the twl6030 register space
+ */
+static int twl6030_write(struct snd_soc_codec *codec,
+ unsigned int reg, unsigned int value)
+{
+ if ((reg < TWL6030_REG_INTID) || (reg > TWL6030_REG_ACCCTL))
+ /* read-only registers */
+ return -EIO;
+
+ twl6030_write_reg_cache(codec, reg, value);
+ return twl_i2c_write_u8(TWL6030_MODULE_AUDIO, value, reg);
+}
+
+static void twl6030_init_vio_regs(struct snd_soc_codec *codec)
+{
+ u8 *cache = codec->reg_cache;
+ int reg, i;
+
+ /* allow registers to be accessed by i2c */
+ twl6030_write(codec, TWL6030_REG_ACCCTL, cache[TWL6030_REG_ACCCTL]);
+
+ /* avoid read-only registers (ASICID, ASICREV, STATUS) */
+ for (i = 2; i < (TWL6030_VIOREGNUM - 1); i++) {
+ reg = twl6030_vio_reg[i];
+ twl6030_write(codec, reg, cache[reg]);
+ }
+}
+
+static void twl6030_init_vdd_regs(struct snd_soc_codec *codec)
+{
+ u8 *cache = codec->reg_cache;
+ int reg, i;
+
+ for (i = 0; i < TWL6030_VDDREGNUM; i++) {
+ reg = twl6030_vdd_reg[i];
+ twl6030_write(codec, reg, cache[reg]);
+ }
+}
+
+/*
+ * MICATT volume control:
+ * from -6 to 0 dB in 6 dB steps
+ */
+static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
+
+/*
+ * MICGAIN volume control:
+ * from 6 to 30 dB in 6 dB steps
+ */
+static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
+
+/*
+ * HSGAIN volume control:
+ * from -30 to 0 dB in 2 dB steps
+ */
+static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
+
+/*
+ * HFGAIN volume control:
+ * from -52 to 6 dB in 2 dB steps
+ */
+static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
+
+/* Left analog microphone selection */
+static const char *twl6030_amicl_texts[] =
+ {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
+
+/* Right analog microphone selection */
+static const char *twl6030_amicr_texts[] =
+ {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
+
+static const struct soc_enum twl6030_enum[] = {
+ SOC_ENUM_SINGLE(TWL6030_REG_MICLCTL, 3, 3, twl6030_amicl_texts),
+ SOC_ENUM_SINGLE(TWL6030_REG_MICRCTL, 3, 3, twl6030_amicr_texts),
+};
+
+static const struct snd_kcontrol_new amicl_control =
+ SOC_DAPM_ENUM("Route", twl6030_enum[0]);
+
+static const struct snd_kcontrol_new amicr_control =
+ SOC_DAPM_ENUM("Route", twl6030_enum[1]);
+
+/* Headset DAC playback switches */
+static const struct snd_kcontrol_new hsdacl_switch_controls =
+ SOC_DAPM_SINGLE("Switch", TWL6030_REG_HSLCTL, 5, 1, 0);
+
+static const struct snd_kcontrol_new hsdacr_switch_controls =
+ SOC_DAPM_SINGLE("Switch", TWL6030_REG_HSRCTL, 5, 1, 0);
+
+/* Handsfree DAC playback switches */
+static const struct snd_kcontrol_new hfdacl_switch_controls =
+ SOC_DAPM_SINGLE("Switch", TWL6030_REG_HFLCTL, 2, 1, 0);
+
+static const struct snd_kcontrol_new hfdacr_switch_controls =
+ SOC_DAPM_SINGLE("Switch", TWL6030_REG_HFRCTL, 2, 1, 0);
+
+/* Headset driver switches */
+static const struct snd_kcontrol_new hsl_driver_switch_controls =
+ SOC_DAPM_SINGLE("Switch", TWL6030_REG_HSLCTL, 2, 1, 0);
+
+static const struct snd_kcontrol_new hsr_driver_switch_controls =
+ SOC_DAPM_SINGLE("Switch", TWL6030_REG_HSRCTL, 2, 1, 0);
+
+/* Handsfree driver switches */
+static const struct snd_kcontrol_new hfl_driver_switch_controls =
+ SOC_DAPM_SINGLE("Switch", TWL6030_REG_HFLCTL, 4, 1, 0);
+
+static const struct snd_kcontrol_new hfr_driver_switch_controls =
+ SOC_DAPM_SINGLE("Switch", TWL6030_REG_HFRCTL, 4, 1, 0);
+
+static const struct snd_kcontrol_new twl6030_snd_controls[] = {
+ /* Capture gains */
+ SOC_DOUBLE_TLV("Capture Preamplifier Volume",
+ TWL6030_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
+ SOC_DOUBLE_TLV("Capture Volume",
+ TWL6030_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
+
+ /* Playback gains */
+ SOC_DOUBLE_TLV("Headset Playback Volume",
+ TWL6030_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
+ SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
+ TWL6030_REG_HFLGAIN, TWL6030_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
+
+};
+
+static const struct snd_soc_dapm_widget twl6030_dapm_widgets[] = {
+ /* Inputs */
+ SND_SOC_DAPM_INPUT("MAINMIC"),
+ SND_SOC_DAPM_INPUT("HSMIC"),
+ SND_SOC_DAPM_INPUT("SUBMIC"),
+ SND_SOC_DAPM_INPUT("AFML"),
+ SND_SOC_DAPM_INPUT("AFMR"),
+
+ /* Outputs */
+ SND_SOC_DAPM_OUTPUT("HSOL"),
+ SND_SOC_DAPM_OUTPUT("HSOR"),
+ SND_SOC_DAPM_OUTPUT("HFL"),
+ SND_SOC_DAPM_OUTPUT("HFR"),
+
+ /* Analog input muxes for the capture amplifiers */
+ SND_SOC_DAPM_MUX("Analog Left Capture Route",
+ SND_SOC_NOPM, 0, 0, &amicl_control),
+ SND_SOC_DAPM_MUX("Analog Right Capture Route",
+ SND_SOC_NOPM, 0, 0, &amicr_control),
+
+ /* Analog capture PGAs */
+ SND_SOC_DAPM_PGA("MicAmpL",
+ TWL6030_REG_MICLCTL, 0, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("MicAmpR",
+ TWL6030_REG_MICRCTL, 0, 0, NULL, 0),
+
+ /* ADCs */
+ SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
+ TWL6030_REG_MICLCTL, 2, 0),
+ SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
+ TWL6030_REG_MICRCTL, 2, 0),
+
+ /* Microphone bias */
+ SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
+ TWL6030_REG_AMICBCTL, 0, 0),
+ SND_SOC_DAPM_MICBIAS("Main Mic Bias",
+ TWL6030_REG_AMICBCTL, 4, 0),
+ SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
+ TWL6030_REG_DMICBCTL, 0, 0),
+ SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
+ TWL6030_REG_DMICBCTL, 4, 0),
+
+ /* DACs */
+ SND_SOC_DAPM_DAC("HSDAC Left", "Headset Playback",
+ TWL6030_REG_HSLCTL, 0, 0),
+ SND_SOC_DAPM_DAC("HSDAC Right", "Headset Playback",
+ TWL6030_REG_HSRCTL, 0, 0),
+ SND_SOC_DAPM_DAC("HFDAC Left", "Handsfree Playback",
+ TWL6030_REG_HFLCTL, 0, 0),
+ SND_SOC_DAPM_DAC("HFDAC Right", "Handsfree Playback",
+ TWL6030_REG_HFRCTL, 0, 0),
+
+ /* Analog playback switches */
+ SND_SOC_DAPM_SWITCH("HSDAC Left Playback",
+ SND_SOC_NOPM, 0, 0, &hsdacl_switch_controls),
+ SND_SOC_DAPM_SWITCH("HSDAC Right Playback",
+ SND_SOC_NOPM, 0, 0, &hsdacr_switch_controls),
+ SND_SOC_DAPM_SWITCH("HFDAC Left Playback",
+ SND_SOC_NOPM, 0, 0, &hfdacl_switch_controls),
+ SND_SOC_DAPM_SWITCH("HFDAC Right Playback",
+ SND_SOC_NOPM, 0, 0, &hfdacr_switch_controls),
+
+ SND_SOC_DAPM_SWITCH("Headset Left Driver",
+ SND_SOC_NOPM, 0, 0, &hsl_driver_switch_controls),
+ SND_SOC_DAPM_SWITCH("Headset Right Driver",
+ SND_SOC_NOPM, 0, 0, &hsr_driver_switch_controls),
+ SND_SOC_DAPM_SWITCH("Handsfree Left Driver",
+ SND_SOC_NOPM, 0, 0, &hfl_driver_switch_controls),
+ SND_SOC_DAPM_SWITCH("Handsfree Right Driver",
+ SND_SOC_NOPM, 0, 0, &hfr_driver_switch_controls),
+
+ /* Analog playback PGAs */
+ SND_SOC_DAPM_PGA("HFDAC Left PGA",
+ TWL6030_REG_HFLCTL, 1, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("HFDAC Right PGA",
+ TWL6030_REG_HFRCTL, 1, 0, NULL, 0),
+
+};
+
+static const struct snd_soc_dapm_route intercon[] = {
+ /* Capture path */
+ {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
+ {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
+ {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
+
+ {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
+ {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
+ {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
+
+ {"MicAmpL", NULL, "Analog Left Capture Route"},
+ {"MicAmpR", NULL, "Analog Right Capture Route"},
+
+ {"ADC Left", NULL, "MicAmpL"},
+ {"ADC Right", NULL, "MicAmpR"},
+
+ /* Headset playback path */
+ {"HSDAC Left Playback", "Switch", "HSDAC Left"},
+ {"HSDAC Right Playback", "Switch", "HSDAC Right"},
+
+ {"Headset Left Driver", "Switch", "HSDAC Left Playback"},
+ {"Headset Right Driver", "Switch", "HSDAC Right Playback"},
+
+ {"HSOL", NULL, "Headset Left Driver"},
+ {"HSOR", NULL, "Headset Right Driver"},
+
+ /* Handsfree playback path */
+ {"HFDAC Left Playback", "Switch", "HFDAC Left"},
+ {"HFDAC Right Playback", "Switch", "HFDAC Right"},
+
+ {"HFDAC Left PGA", NULL, "HFDAC Left Playback"},
+ {"HFDAC Right PGA", NULL, "HFDAC Right Playback"},
+
+ {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
+ {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
+
+ {"HFL", NULL, "Handsfree Left Driver"},
+ {"HFR", NULL, "Handsfree Right Driver"},
+};
+
+static int twl6030_add_widgets(struct snd_soc_codec *codec)
+{
+ snd_soc_dapm_new_controls(codec, twl6030_dapm_widgets,
+ ARRAY_SIZE(twl6030_dapm_widgets));
+
+ snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
+
+ snd_soc_dapm_new_widgets(codec);
+
+ return 0;
+}
+
+static int twl6030_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ struct twl_codec_data *twl_codec = codec->control_data;
+ struct twl6030_data *priv = codec->private_data;
+ int audpwron_gpio = twl_codec->audpwron_gpio;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ case SND_SOC_BIAS_PREPARE:
+ case SND_SOC_BIAS_STANDBY:
+ if (priv->codec_powered)
+ return 0;
+
+ if (gpio_is_valid(audpwron_gpio)) {
+ /* use AUDPWRON line */
+ gpio_set_value(audpwron_gpio, 1);
+
+ /* power-up sequence latency */
+ mdelay(16);
+ }
+
+ /* sync registers updated during power-up sequence */
+ twl6030_write_reg_cache(codec, TWL6030_REG_NCPCTL, 0x81);
+ twl6030_write_reg_cache(codec, TWL6030_REG_LDOCTL, 0x45);
+ twl6030_write_reg_cache(codec, TWL6030_REG_LPPLLCTL, 0x01);
+
+ /* initialize vdd/vss registers with reg_cache */
+ twl6030_init_vdd_regs(codec);
+
+ priv->codec_powered = 1;
+ break;
+ case SND_SOC_BIAS_OFF:
+ if (!priv->codec_powered)
+ return 0;
+
+ if (gpio_is_valid(audpwron_gpio)) {
+ /* use AUDPWRON line */
+ gpio_set_value(audpwron_gpio, 0);
+
+ /* power-down sequence latency */
+ udelay(500);
+ }
+
+ /* sync registers updated during power-down sequence */
+ twl6030_write_reg_cache(codec, TWL6030_REG_NCPCTL, 0x00);
+ twl6030_write_reg_cache(codec, TWL6030_REG_LDOCTL, 0x00);
+ twl6030_write_reg_cache(codec, TWL6030_REG_LPPLLCTL, 0x00);
+
+ priv->codec_powered = 0;
+ break;
+ }
+ codec->bias_level = level;
+
+ return 0;
+}
+
+static int twl6030_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_device *socdev = rtd->socdev;
+ struct snd_soc_codec *codec = socdev->card->codec;
+ int rate, format;
+
+ /* hardware dai (McPDM) requires bit stream of twice
+ * the actual rate, application processor (audio backend)
+ * should upsample accordingly
+ */
+ rate = params_rate(params);
+ switch (rate) {
+ case 44100:
+ case 48000:
+ break;
+ default:
+ dev_err(codec->dev, "unknown rate %d\n", rate);
+ return -EINVAL;
+ }
+
+ /* the sample lenght handled by codec at A-D and D-A
+ * conversion is 16-bits, but the dai requires 32-bits
+ */
+ format = params_format(params);
+ if (format != SNDRV_PCM_FORMAT_S32_LE) {
+ dev_err(codec->dev, "unknown format %d\n", format);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int twl6030_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u8 hppll, lppll;
+
+ hppll = twl6030_read_reg_cache(codec, TWL6030_REG_HPPLLCTL);
+ hppll &= TWL6030_HPLLRST;
+
+ switch (freq) {
+ case 12000000:
+ /* MCLK input, PLL enabled */
+ hppll = TWL6030_MCLK_12000KHZ
+ | TWL6030_HPLLSQRBP
+ | TWL6030_HPLLENA;
+ break;
+ case 19200000:
+ /* MCLK input, PLL disabled */
+ hppll = TWL6030_MCLK_19200KHZ
+ | TWL6030_HPLLSQRBP
+ | TWL6030_HPLLBP;
+ break;
+ case 26000000:
+ /* MCLK input, PLL enabled */
+ hppll = TWL6030_MCLK_26000KHZ
+ | TWL6030_HPLLSQRBP
+ | TWL6030_HPLLENA;
+ break;
+ case 38400000:
+ /* clk slicer input, PLL disabled */
+ hppll = TWL6030_MCLK_38400KHZ
+ | TWL6030_HPLLSQRENA
+ | TWL6030_HPLLBP;
+ break;
+ default:
+ dev_err(codec->dev, "unknown sysclk rate %d\n", freq);
+ return -EINVAL;
+ }
+
+ twl6030_write(codec, TWL6030_REG_HPPLLCTL, hppll);
+
+ /* Disable LPPLL and select HPPLL */
+ lppll = TWL6030_HPLLSEL;
+ twl6030_write(codec, TWL6030_REG_LPPLLCTL, lppll);
+
+ return 0;
+}
+
+static int twl6030_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ int format = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
+
+ /* propietary pdm dai format */
+ if (format != SND_SOC_DAIFMT_PDM)
+ return -EINVAL;
+
+ return 0;
+}
+
+static struct snd_soc_dai_ops twl6030_dai_ops = {
+ .hw_params = twl6030_hw_params,
+ .set_sysclk = twl6030_set_dai_sysclk,
+ .set_fmt = twl6030_set_dai_fmt,
+};
+
+struct snd_soc_dai twl6030_dai = {
+ .name = "twl6030",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 4,
+ .rates = TWL6030_RATES,
+ .formats = TWL6030_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = TWL6030_RATES,
+ .formats = TWL6030_FORMATS,
+ },
+ .ops = &twl6030_dai_ops,
+};
+EXPORT_SYMBOL_GPL(twl6030_dai);
+
+static int twl6030_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->card->codec;
+
+ twl6030_set_bias_level(codec, SND_SOC_BIAS_OFF);
+
+ return 0;
+}
+
+static int twl6030_resume(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->card->codec;
+
+ twl6030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+ twl6030_set_bias_level(codec, codec->suspend_bias_level);
+
+ return 0;
+}
+
+static struct snd_soc_codec *twl6030_codec;
+
+static int twl6030_probe(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec;
+ int ret = 0;
+
+ BUG_ON(!twl6030_codec);
+
+ codec = twl6030_codec;
+ socdev->card->codec = codec;
+
+ /* register pcms */
+ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to create pcms\n");
+ return ret;
+ }
+
+ snd_soc_add_controls(codec, twl6030_snd_controls,
+ ARRAY_SIZE(twl6030_snd_controls));
+ twl6030_add_widgets(codec);
+
+ ret = snd_soc_init_card(socdev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to register card\n");
+ goto card_err;
+ }
+
+ return ret;
+
+card_err:
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+ return ret;
+}
+
+static int twl6030_remove(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->card->codec;
+
+ twl6030_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+ kfree(codec);
+
+ return 0;
+}
+
+struct snd_soc_codec_device soc_codec_dev_twl6030 = {
+ .probe = twl6030_probe,
+ .remove = twl6030_remove,
+ .suspend = twl6030_suspend,
+ .resume = twl6030_resume,
+};
+EXPORT_SYMBOL_GPL(soc_codec_dev_twl6030);
+
+static int __devinit twl6030_codec_probe(struct platform_device *pdev)
+{
+ struct twl_codec_data *twl_codec = pdev->dev.platform_data;
+ struct twl6030_data *priv;
+ struct snd_soc_codec *codec;
+ int audpwron_gpio = twl_codec->audpwron_gpio;
+ int ret = 0;
+
+ priv = kzalloc(sizeof(struct twl6030_data), GFP_KERNEL);
+ if (priv == NULL)
+ return -ENOMEM;
+
+ codec = &priv->codec;
+ twl_codec->codec = codec;
+ codec->dev = &pdev->dev;
+ twl6030_dai.dev = &pdev->dev;
+
+ codec->name = "twl6030";
+ codec->owner = THIS_MODULE;
+ codec->read = twl6030_read_reg_cache;
+ codec->write = twl6030_write;
+ codec->set_bias_level = twl6030_set_bias_level;
+ codec->private_data = priv;
+ codec->control_data = twl_codec;
+ codec->dai = &twl6030_dai;
+ codec->num_dai = 1;
+ codec->reg_cache_size = ARRAY_SIZE(twl6030_reg);
+ codec->reg_cache = kmemdup(twl6030_reg, sizeof(twl6030_reg),
+ GFP_KERNEL);
+ if (codec->reg_cache == NULL) {
+ ret = -ENOMEM;
+ goto cache_err;
+ }
+
+ mutex_init(&codec->mutex);
+ INIT_LIST_HEAD(&codec->dapm_widgets);
+ INIT_LIST_HEAD(&codec->dapm_paths);
+
+ if (gpio_is_valid(audpwron_gpio)) {
+ ret = gpio_request(audpwron_gpio, "audpwron");
+ if (ret)
+ goto gpio1_err;
+
+ ret = gpio_direction_output(audpwron_gpio, 0);
+ if (ret)
+ goto gpio2_err;
+
+ priv->codec_powered = 0;
+ } else {
+ /* if no gpio is provided, then assume its always on */
+ priv->codec_powered = 1;
+ }
+
+ /* init vio registers */
+ twl6030_init_vio_regs(codec);
+
+ /* power on device */
+ twl6030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ ret = snd_soc_register_codec(codec);
+ if (ret)
+ goto gpio2_err;
+
+ twl6030_codec = codec;
+
+ ret = snd_soc_register_dai(&twl6030_dai);
+ if (ret)
+ goto dai_err;
+
+ return 0;
+
+dai_err:
+ snd_soc_unregister_codec(codec);
+ twl6030_codec = NULL;
+gpio2_err:
+ if (gpio_is_valid(audpwron_gpio))
+ gpio_free(audpwron_gpio);
+gpio1_err:
+ kfree(codec->reg_cache);
+cache_err:
+ kfree(priv);
+ return ret;
+}
+
+static int __devexit twl6030_codec_remove(struct platform_device *pdev)
+{
+ struct twl_codec_data *twl_codec = pdev->dev.platform_data;
+
+ if (gpio_is_valid(twl_codec->audpwron_gpio))
+ gpio_free(twl_codec->audpwron_gpio);
+
+ snd_soc_unregister_dai(&twl6030_dai);
+ snd_soc_unregister_codec(twl6030_codec);
+
+ kfree(twl6030_codec);
+ twl6030_codec = NULL;
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int twl6030_codec_suspend(struct platform_device *pdev,
+ pm_message_t msg)
+{
+ return snd_soc_suspend_device(&pdev->dev);
+}
+
+static int twl6030_codec_resume(struct platform_device *pdev)
+{
+ return snd_soc_resume_device(&pdev->dev);
+}
+#else
+#define twl6030_codec_suspend NULL
+#define twl6030_codec_resume NULL
+#endif
+
+static struct platform_driver twl6030_codec_driver = {
+ .driver = {
+ .name = "twl6030_codec",
+ .owner = THIS_MODULE,
+ },
+ .probe = twl6030_codec_probe,
+ .remove = __devexit_p(twl6030_codec_remove),
+ .suspend = twl6030_codec_suspend,
+ .resume = twl6030_codec_resume,
+};
+
+static int __init twl6030_codec_init(void)
+{
+ return platform_driver_register(&twl6030_codec_driver);
+}
+module_init(twl6030_codec_init);
+
+static void __exit twl6030_codec_exit(void)
+{
+ platform_driver_unregister(&twl6030_codec_driver);
+}
+module_exit(twl6030_codec_exit);
+
+MODULE_DESCRIPTION("ASoC TWL6030 codec driver");
+MODULE_AUTHOR("Misael Lopez Cruz");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/twl6030.h b/sound/soc/codecs/twl6030.h
new file mode 100644
index 0000000..d99d469
--- /dev/null
+++ b/sound/soc/codecs/twl6030.h
@@ -0,0 +1,94 @@
+/*
+ * ALSA SoC TWL6030 codec driver
+ *
+ * Author: Misael Lopez Cruz <x0052729@xxxxxx>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __TWL6030_H__
+#define __TWL6030_H__
+
+#define TWL6030_REG_ASICID 0x01
+#define TWL6030_REG_ASICREV 0x02
+#define TWL6030_REG_INTID 0x03
+#define TWL6030_REG_INTMR 0x04
+#define TWL6030_REG_NCPCTL 0x05
+#define TWL6030_REG_LDOCTL 0x06
+#define TWL6030_REG_HPPLLCTL 0x07
+#define TWL6030_REG_LPPLLCTL 0x08
+#define TWL6030_REG_LPPLLDIV 0x09
+#define TWL6030_REG_AMICBCTL 0x0A
+#define TWL6030_REG_DMICBCTL 0x0B
+#define TWL6030_REG_MICLCTL 0x0C
+#define TWL6030_REG_MICRCTL 0x0D
+#define TWL6030_REG_MICGAIN 0x0E
+#define TWL6030_REG_LINEGAIN 0x0F
+#define TWL6030_REG_HSLCTL 0x10
+#define TWL6030_REG_HSRCTL 0x11
+#define TWL6030_REG_HSGAIN 0x12
+#define TWL6030_REG_EARCTL 0x13
+#define TWL6030_REG_HFLCTL 0x14
+#define TWL6030_REG_HFLGAIN 0x15
+#define TWL6030_REG_HFRCTL 0x16
+#define TWL6030_REG_HFRGAIN 0x17
+#define TWL6030_REG_VIBCTLL 0x18
+#define TWL6030_REG_VIBDATL 0x19
+#define TWL6030_REG_VIBCTLR 0x1A
+#define TWL6030_REG_VIBDATR 0x1B
+#define TWL6030_REG_HKCTL1 0x1C
+#define TWL6030_REG_HKCTL2 0x1D
+#define TWL6030_REG_GPOCTL 0x1E
+#define TWL6030_REG_ALB 0x1F
+#define TWL6030_REG_DLB 0x20
+#define TWL6030_REG_TRIM1 0x28
+#define TWL6030_REG_TRIM2 0x29
+#define TWL6030_REG_TRIM3 0x2A
+#define TWL6030_REG_HSOTRIM 0x2B
+#define TWL6030_REG_HFOTRIM 0x2C
+#define TWL6030_REG_ACCCTL 0x2D
+#define TWL6030_REG_STATUS 0x2E
+
+#define TWL6030_CACHEREGNUM (TWL6030_REG_STATUS + 1)
+
+#define TWL6030_VIOREGNUM 18
+#define TWL6030_VDDREGNUM 21
+
+/* HPPLLCTL (0x07) fields */
+
+#define TWL6030_HPLLENA 0x01
+#define TWL6030_HPLLRST 0x02
+#define TWL6030_HPLLBP 0x04
+#define TWL6030_HPLLSQRENA 0x08
+#define TWL6030_HPLLSQRBP 0x10
+#define TWL6030_MCLK_12000KHZ (0 << 5)
+#define TWL6030_MCLK_19200KHZ (1 << 5)
+#define TWL6030_MCLK_26000KHZ (2 << 5)
+#define TWL6030_MCLK_38400KHZ (3 << 5)
+#define TWL6030_MCLK_MSK 0x60
+
+/* LPPLLCTL (0x08) fields */
+
+#define TWL6030_LPLLENA 0x01
+#define TWL6030_LPLLRST 0x02
+#define TWL6030_LPLLSEL 0x04
+#define TWL6030_LPLLFIN 0x08
+#define TWL6030_HPLLSEL 0x10
+
+extern struct snd_soc_dai twl6030_dai;
+extern struct snd_soc_codec_device soc_codec_dev_twl6030;
+
+#endif /* End of __TWL6030_H__ */
--
1.5.4.3
--
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