diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/codecs/tlv320dac33.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/soc/codecs/tlv320dac33.c | 1650 |
1 files changed, 0 insertions, 1650 deletions
diff --git a/ANDROID_3.4.5/sound/soc/codecs/tlv320dac33.c b/ANDROID_3.4.5/sound/soc/codecs/tlv320dac33.c deleted file mode 100644 index 4587ddd0..00000000 --- a/ANDROID_3.4.5/sound/soc/codecs/tlv320dac33.c +++ /dev/null @@ -1,1650 +0,0 @@ -/* - * ALSA SoC Texas Instruments TLV320DAC33 codec driver - * - * Author: Peter Ujfalusi <peter.ujfalusi@ti.com> - * - * Copyright: (C) 2009 Nokia Corporation - * - * 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/interrupt.h> -#include <linux/gpio.h> -#include <linux/regulator/consumer.h> -#include <linux/slab.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/soc.h> -#include <sound/initval.h> -#include <sound/tlv.h> - -#include <sound/tlv320dac33-plat.h> -#include "tlv320dac33.h" - -/* - * The internal FIFO is 24576 bytes long - * It can be configured to hold 16bit or 24bit samples - * In 16bit configuration the FIFO can hold 6144 stereo samples - * In 24bit configuration the FIFO can hold 4096 stereo samples - */ -#define DAC33_FIFO_SIZE_16BIT 6144 -#define DAC33_FIFO_SIZE_24BIT 4096 -#define DAC33_MODE7_MARGIN 10 /* Safety margin for FIFO in Mode7 */ - -#define BURST_BASEFREQ_HZ 49152000 - -#define SAMPLES_TO_US(rate, samples) \ - (1000000000 / (((rate) * 1000) / (samples))) - -#define US_TO_SAMPLES(rate, us) \ - ((rate) / (1000000 / ((us) < 1000000 ? (us) : 1000000))) - -#define UTHR_FROM_PERIOD_SIZE(samples, playrate, burstrate) \ - (((samples)*5000) / (((burstrate)*5000) / ((burstrate) - (playrate)))) - -static void dac33_calculate_times(struct snd_pcm_substream *substream); -static int dac33_prepare_chip(struct snd_pcm_substream *substream); - -enum dac33_state { - DAC33_IDLE = 0, - DAC33_PREFILL, - DAC33_PLAYBACK, - DAC33_FLUSH, -}; - -enum dac33_fifo_modes { - DAC33_FIFO_BYPASS = 0, - DAC33_FIFO_MODE1, - DAC33_FIFO_MODE7, - DAC33_FIFO_LAST_MODE, -}; - -#define DAC33_NUM_SUPPLIES 3 -static const char *dac33_supply_names[DAC33_NUM_SUPPLIES] = { - "AVDD", - "DVDD", - "IOVDD", -}; - -struct tlv320dac33_priv { - struct mutex mutex; - struct workqueue_struct *dac33_wq; - struct work_struct work; - struct snd_soc_codec *codec; - struct regulator_bulk_data supplies[DAC33_NUM_SUPPLIES]; - struct snd_pcm_substream *substream; - int power_gpio; - int chip_power; - int irq; - unsigned int refclk; - - unsigned int alarm_threshold; /* set to be half of LATENCY_TIME_MS */ - enum dac33_fifo_modes fifo_mode;/* FIFO mode selection */ - unsigned int fifo_size; /* Size of the FIFO in samples */ - unsigned int nsample; /* burst read amount from host */ - int mode1_latency; /* latency caused by the i2c writes in - * us */ - u8 burst_bclkdiv; /* BCLK divider value in burst mode */ - unsigned int burst_rate; /* Interface speed in Burst modes */ - - int keep_bclk; /* Keep the BCLK continuously running - * in FIFO modes */ - spinlock_t lock; - unsigned long long t_stamp1; /* Time stamp for FIFO modes to */ - unsigned long long t_stamp2; /* calculate the FIFO caused delay */ - - unsigned int mode1_us_burst; /* Time to burst read n number of - * samples */ - unsigned int mode7_us_to_lthr; /* Time to reach lthr from uthr */ - - unsigned int uthr; - - enum dac33_state state; - enum snd_soc_control_type control_type; - void *control_data; -}; - -static const u8 dac33_reg[DAC33_CACHEREGNUM] = { -0x00, 0x00, 0x00, 0x00, /* 0x00 - 0x03 */ -0x00, 0x00, 0x00, 0x00, /* 0x04 - 0x07 */ -0x00, 0x00, 0x00, 0x00, /* 0x08 - 0x0b */ -0x00, 0x00, 0x00, 0x00, /* 0x0c - 0x0f */ -0x00, 0x00, 0x00, 0x00, /* 0x10 - 0x13 */ -0x00, 0x00, 0x00, 0x00, /* 0x14 - 0x17 */ -0x00, 0x00, 0x00, 0x00, /* 0x18 - 0x1b */ -0x00, 0x00, 0x00, 0x00, /* 0x1c - 0x1f */ -0x00, 0x00, 0x00, 0x00, /* 0x20 - 0x23 */ -0x00, 0x00, 0x00, 0x00, /* 0x24 - 0x27 */ -0x00, 0x00, 0x00, 0x00, /* 0x28 - 0x2b */ -0x00, 0x00, 0x00, 0x80, /* 0x2c - 0x2f */ -0x80, 0x00, 0x00, 0x00, /* 0x30 - 0x33 */ -0x00, 0x00, 0x00, 0x00, /* 0x34 - 0x37 */ -0x00, 0x00, /* 0x38 - 0x39 */ -/* Registers 0x3a - 0x3f are reserved */ - 0x00, 0x00, /* 0x3a - 0x3b */ -0x00, 0x00, 0x00, 0x00, /* 0x3c - 0x3f */ - -0x00, 0x00, 0x00, 0x00, /* 0x40 - 0x43 */ -0x00, 0x80, /* 0x44 - 0x45 */ -/* Registers 0x46 - 0x47 are reserved */ - 0x80, 0x80, /* 0x46 - 0x47 */ - -0x80, 0x00, 0x00, /* 0x48 - 0x4a */ -/* Registers 0x4b - 0x7c are reserved */ - 0x00, /* 0x4b */ -0x00, 0x00, 0x00, 0x00, /* 0x4c - 0x4f */ -0x00, 0x00, 0x00, 0x00, /* 0x50 - 0x53 */ -0x00, 0x00, 0x00, 0x00, /* 0x54 - 0x57 */ -0x00, 0x00, 0x00, 0x00, /* 0x58 - 0x5b */ -0x00, 0x00, 0x00, 0x00, /* 0x5c - 0x5f */ -0x00, 0x00, 0x00, 0x00, /* 0x60 - 0x63 */ -0x00, 0x00, 0x00, 0x00, /* 0x64 - 0x67 */ -0x00, 0x00, 0x00, 0x00, /* 0x68 - 0x6b */ -0x00, 0x00, 0x00, 0x00, /* 0x6c - 0x6f */ -0x00, 0x00, 0x00, 0x00, /* 0x70 - 0x73 */ -0x00, 0x00, 0x00, 0x00, /* 0x74 - 0x77 */ -0x00, 0x00, 0x00, 0x00, /* 0x78 - 0x7b */ -0x00, /* 0x7c */ - - 0xda, 0x33, 0x03, /* 0x7d - 0x7f */ -}; - -/* Register read and write */ -static inline unsigned int dac33_read_reg_cache(struct snd_soc_codec *codec, - unsigned reg) -{ - u8 *cache = codec->reg_cache; - if (reg >= DAC33_CACHEREGNUM) - return 0; - - return cache[reg]; -} - -static inline void dac33_write_reg_cache(struct snd_soc_codec *codec, - u8 reg, u8 value) -{ - u8 *cache = codec->reg_cache; - if (reg >= DAC33_CACHEREGNUM) - return; - - cache[reg] = value; -} - -static int dac33_read(struct snd_soc_codec *codec, unsigned int reg, - u8 *value) -{ - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - int val, ret = 0; - - *value = reg & 0xff; - - /* If powered off, return the cached value */ - if (dac33->chip_power) { - val = i2c_smbus_read_byte_data(codec->control_data, value[0]); - if (val < 0) { - dev_err(codec->dev, "Read failed (%d)\n", val); - value[0] = dac33_read_reg_cache(codec, reg); - ret = val; - } else { - value[0] = val; - dac33_write_reg_cache(codec, reg, val); - } - } else { - value[0] = dac33_read_reg_cache(codec, reg); - } - - return ret; -} - -static int dac33_write(struct snd_soc_codec *codec, unsigned int reg, - unsigned int value) -{ - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - u8 data[2]; - int ret = 0; - - /* - * data is - * D15..D8 dac33 register offset - * D7...D0 register data - */ - data[0] = reg & 0xff; - data[1] = value & 0xff; - - dac33_write_reg_cache(codec, data[0], data[1]); - if (dac33->chip_power) { - ret = codec->hw_write(codec->control_data, data, 2); - if (ret != 2) - dev_err(codec->dev, "Write failed (%d)\n", ret); - else - ret = 0; - } - - return ret; -} - -static int dac33_write_locked(struct snd_soc_codec *codec, unsigned int reg, - unsigned int value) -{ - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - int ret; - - mutex_lock(&dac33->mutex); - ret = dac33_write(codec, reg, value); - mutex_unlock(&dac33->mutex); - - return ret; -} - -#define DAC33_I2C_ADDR_AUTOINC 0x80 -static int dac33_write16(struct snd_soc_codec *codec, unsigned int reg, - unsigned int value) -{ - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - u8 data[3]; - int ret = 0; - - /* - * data is - * D23..D16 dac33 register offset - * D15..D8 register data MSB - * D7...D0 register data LSB - */ - data[0] = reg & 0xff; - data[1] = (value >> 8) & 0xff; - data[2] = value & 0xff; - - dac33_write_reg_cache(codec, data[0], data[1]); - dac33_write_reg_cache(codec, data[0] + 1, data[2]); - - if (dac33->chip_power) { - /* We need to set autoincrement mode for 16 bit writes */ - data[0] |= DAC33_I2C_ADDR_AUTOINC; - ret = codec->hw_write(codec->control_data, data, 3); - if (ret != 3) - dev_err(codec->dev, "Write failed (%d)\n", ret); - else - ret = 0; - } - - return ret; -} - -static void dac33_init_chip(struct snd_soc_codec *codec) -{ - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - - if (unlikely(!dac33->chip_power)) - return; - - /* A : DAC sample rate Fsref/1.5 */ - dac33_write(codec, DAC33_DAC_CTRL_A, DAC33_DACRATE(0)); - /* B : DAC src=normal, not muted */ - dac33_write(codec, DAC33_DAC_CTRL_B, DAC33_DACSRCR_RIGHT | - DAC33_DACSRCL_LEFT); - /* C : (defaults) */ - dac33_write(codec, DAC33_DAC_CTRL_C, 0x00); - - /* 73 : volume soft stepping control, - clock source = internal osc (?) */ - dac33_write(codec, DAC33_ANA_VOL_SOFT_STEP_CTRL, DAC33_VOLCLKEN); - - /* Restore only selected registers (gains mostly) */ - dac33_write(codec, DAC33_LDAC_DIG_VOL_CTRL, - dac33_read_reg_cache(codec, DAC33_LDAC_DIG_VOL_CTRL)); - dac33_write(codec, DAC33_RDAC_DIG_VOL_CTRL, - dac33_read_reg_cache(codec, DAC33_RDAC_DIG_VOL_CTRL)); - - dac33_write(codec, DAC33_LINEL_TO_LLO_VOL, - dac33_read_reg_cache(codec, DAC33_LINEL_TO_LLO_VOL)); - dac33_write(codec, DAC33_LINER_TO_RLO_VOL, - dac33_read_reg_cache(codec, DAC33_LINER_TO_RLO_VOL)); - - dac33_write(codec, DAC33_OUT_AMP_CTRL, - dac33_read_reg_cache(codec, DAC33_OUT_AMP_CTRL)); - - dac33_write(codec, DAC33_LDAC_PWR_CTRL, - dac33_read_reg_cache(codec, DAC33_LDAC_PWR_CTRL)); - dac33_write(codec, DAC33_RDAC_PWR_CTRL, - dac33_read_reg_cache(codec, DAC33_RDAC_PWR_CTRL)); -} - -static inline int dac33_read_id(struct snd_soc_codec *codec) -{ - int i, ret = 0; - u8 reg; - - for (i = 0; i < 3; i++) { - ret = dac33_read(codec, DAC33_DEVICE_ID_MSB + i, ®); - if (ret < 0) - break; - } - - return ret; -} - -static inline void dac33_soft_power(struct snd_soc_codec *codec, int power) -{ - u8 reg; - - reg = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); - if (power) - reg |= DAC33_PDNALLB; - else - reg &= ~(DAC33_PDNALLB | DAC33_OSCPDNB | - DAC33_DACRPDNB | DAC33_DACLPDNB); - dac33_write(codec, DAC33_PWR_CTRL, reg); -} - -static inline void dac33_disable_digital(struct snd_soc_codec *codec) -{ - u8 reg; - - /* Stop the DAI clock */ - reg = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B); - reg &= ~DAC33_BCLKON; - dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_B, reg); - - /* Power down the Oscillator, and DACs */ - reg = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); - reg &= ~(DAC33_OSCPDNB | DAC33_DACRPDNB | DAC33_DACLPDNB); - dac33_write(codec, DAC33_PWR_CTRL, reg); -} - -static int dac33_hard_power(struct snd_soc_codec *codec, int power) -{ - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - int ret = 0; - - mutex_lock(&dac33->mutex); - - /* Safety check */ - if (unlikely(power == dac33->chip_power)) { - dev_dbg(codec->dev, "Trying to set the same power state: %s\n", - power ? "ON" : "OFF"); - goto exit; - } - - if (power) { - ret = regulator_bulk_enable(ARRAY_SIZE(dac33->supplies), - dac33->supplies); - if (ret != 0) { - dev_err(codec->dev, - "Failed to enable supplies: %d\n", ret); - goto exit; - } - - if (dac33->power_gpio >= 0) - gpio_set_value(dac33->power_gpio, 1); - - dac33->chip_power = 1; - } else { - dac33_soft_power(codec, 0); - if (dac33->power_gpio >= 0) - gpio_set_value(dac33->power_gpio, 0); - - ret = regulator_bulk_disable(ARRAY_SIZE(dac33->supplies), - dac33->supplies); - if (ret != 0) { - dev_err(codec->dev, - "Failed to disable supplies: %d\n", ret); - goto exit; - } - - dac33->chip_power = 0; - } - -exit: - mutex_unlock(&dac33->mutex); - return ret; -} - -static int dac33_playback_event(struct snd_soc_dapm_widget *w, - struct snd_kcontrol *kcontrol, int event) -{ - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(w->codec); - - switch (event) { - case SND_SOC_DAPM_PRE_PMU: - if (likely(dac33->substream)) { - dac33_calculate_times(dac33->substream); - dac33_prepare_chip(dac33->substream); - } - break; - case SND_SOC_DAPM_POST_PMD: - dac33_disable_digital(w->codec); - break; - } - return 0; -} - -static int dac33_get_fifo_mode(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - - ucontrol->value.integer.value[0] = dac33->fifo_mode; - - return 0; -} - -static int dac33_set_fifo_mode(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - int ret = 0; - - if (dac33->fifo_mode == ucontrol->value.integer.value[0]) - return 0; - /* Do not allow changes while stream is running*/ - if (codec->active) - return -EPERM; - - if (ucontrol->value.integer.value[0] < 0 || - ucontrol->value.integer.value[0] >= DAC33_FIFO_LAST_MODE) - ret = -EINVAL; - else - dac33->fifo_mode = ucontrol->value.integer.value[0]; - - return ret; -} - -/* Codec operation modes */ -static const char *dac33_fifo_mode_texts[] = { - "Bypass", "Mode 1", "Mode 7" -}; - -static const struct soc_enum dac33_fifo_mode_enum = - SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(dac33_fifo_mode_texts), - dac33_fifo_mode_texts); - -/* L/R Line Output Gain */ -static const char *lr_lineout_gain_texts[] = { - "Line -12dB DAC 0dB", "Line -6dB DAC 6dB", - "Line 0dB DAC 12dB", "Line 6dB DAC 18dB", -}; - -static const struct soc_enum l_lineout_gain_enum = - SOC_ENUM_SINGLE(DAC33_LDAC_PWR_CTRL, 0, - ARRAY_SIZE(lr_lineout_gain_texts), - lr_lineout_gain_texts); - -static const struct soc_enum r_lineout_gain_enum = - SOC_ENUM_SINGLE(DAC33_RDAC_PWR_CTRL, 0, - ARRAY_SIZE(lr_lineout_gain_texts), - lr_lineout_gain_texts); - -/* - * DACL/R digital volume control: - * from 0 dB to -63.5 in 0.5 dB steps - * Need to be inverted later on: - * 0x00 == 0 dB - * 0x7f == -63.5 dB - */ -static DECLARE_TLV_DB_SCALE(dac_digivol_tlv, -6350, 50, 0); - -static const struct snd_kcontrol_new dac33_snd_controls[] = { - SOC_DOUBLE_R_TLV("DAC Digital Playback Volume", - DAC33_LDAC_DIG_VOL_CTRL, DAC33_RDAC_DIG_VOL_CTRL, - 0, 0x7f, 1, dac_digivol_tlv), - SOC_DOUBLE_R("DAC Digital Playback Switch", - DAC33_LDAC_DIG_VOL_CTRL, DAC33_RDAC_DIG_VOL_CTRL, 7, 1, 1), - SOC_DOUBLE_R("Line to Line Out Volume", - DAC33_LINEL_TO_LLO_VOL, DAC33_LINER_TO_RLO_VOL, 0, 127, 1), - SOC_ENUM("Left Line Output Gain", l_lineout_gain_enum), - SOC_ENUM("Right Line Output Gain", r_lineout_gain_enum), -}; - -static const struct snd_kcontrol_new dac33_mode_snd_controls[] = { - SOC_ENUM_EXT("FIFO Mode", dac33_fifo_mode_enum, - dac33_get_fifo_mode, dac33_set_fifo_mode), -}; - -/* Analog bypass */ -static const struct snd_kcontrol_new dac33_dapm_abypassl_control = - SOC_DAPM_SINGLE("Switch", DAC33_LINEL_TO_LLO_VOL, 7, 1, 1); - -static const struct snd_kcontrol_new dac33_dapm_abypassr_control = - SOC_DAPM_SINGLE("Switch", DAC33_LINER_TO_RLO_VOL, 7, 1, 1); - -/* LOP L/R invert selection */ -static const char *dac33_lr_lom_texts[] = {"DAC", "LOP"}; - -static const struct soc_enum dac33_left_lom_enum = - SOC_ENUM_SINGLE(DAC33_OUT_AMP_CTRL, 3, - ARRAY_SIZE(dac33_lr_lom_texts), - dac33_lr_lom_texts); - -static const struct snd_kcontrol_new dac33_dapm_left_lom_control = -SOC_DAPM_ENUM("Route", dac33_left_lom_enum); - -static const struct soc_enum dac33_right_lom_enum = - SOC_ENUM_SINGLE(DAC33_OUT_AMP_CTRL, 2, - ARRAY_SIZE(dac33_lr_lom_texts), - dac33_lr_lom_texts); - -static const struct snd_kcontrol_new dac33_dapm_right_lom_control = -SOC_DAPM_ENUM("Route", dac33_right_lom_enum); - -static const struct snd_soc_dapm_widget dac33_dapm_widgets[] = { - SND_SOC_DAPM_OUTPUT("LEFT_LO"), - SND_SOC_DAPM_OUTPUT("RIGHT_LO"), - - SND_SOC_DAPM_INPUT("LINEL"), - SND_SOC_DAPM_INPUT("LINER"), - - SND_SOC_DAPM_DAC("DACL", "Left Playback", SND_SOC_NOPM, 0, 0), - SND_SOC_DAPM_DAC("DACR", "Right Playback", SND_SOC_NOPM, 0, 0), - - /* Analog bypass */ - SND_SOC_DAPM_SWITCH("Analog Left Bypass", SND_SOC_NOPM, 0, 0, - &dac33_dapm_abypassl_control), - SND_SOC_DAPM_SWITCH("Analog Right Bypass", SND_SOC_NOPM, 0, 0, - &dac33_dapm_abypassr_control), - - SND_SOC_DAPM_MUX("Left LOM Inverted From", SND_SOC_NOPM, 0, 0, - &dac33_dapm_left_lom_control), - SND_SOC_DAPM_MUX("Right LOM Inverted From", SND_SOC_NOPM, 0, 0, - &dac33_dapm_right_lom_control), - /* - * For DAPM path, when only the anlog bypass path is enabled, and the - * LOP inverted from the corresponding DAC side. - * This is needed, so we can attach the DAC power supply in this case. - */ - SND_SOC_DAPM_PGA("Left Bypass PGA", SND_SOC_NOPM, 0, 0, NULL, 0), - SND_SOC_DAPM_PGA("Right Bypass PGA", SND_SOC_NOPM, 0, 0, NULL, 0), - - SND_SOC_DAPM_REG(snd_soc_dapm_mixer, "Output Left Amplifier", - DAC33_OUT_AMP_PWR_CTRL, 6, 3, 3, 0), - SND_SOC_DAPM_REG(snd_soc_dapm_mixer, "Output Right Amplifier", - DAC33_OUT_AMP_PWR_CTRL, 4, 3, 3, 0), - - SND_SOC_DAPM_SUPPLY("Left DAC Power", - DAC33_LDAC_PWR_CTRL, 2, 0, NULL, 0), - SND_SOC_DAPM_SUPPLY("Right DAC Power", - DAC33_RDAC_PWR_CTRL, 2, 0, NULL, 0), - - SND_SOC_DAPM_SUPPLY("Codec Power", - DAC33_PWR_CTRL, 4, 0, NULL, 0), - - SND_SOC_DAPM_PRE("Pre Playback", dac33_playback_event), - SND_SOC_DAPM_POST("Post Playback", dac33_playback_event), -}; - -static const struct snd_soc_dapm_route audio_map[] = { - /* Analog bypass */ - {"Analog Left Bypass", "Switch", "LINEL"}, - {"Analog Right Bypass", "Switch", "LINER"}, - - {"Output Left Amplifier", NULL, "DACL"}, - {"Output Right Amplifier", NULL, "DACR"}, - - {"Left Bypass PGA", NULL, "Analog Left Bypass"}, - {"Right Bypass PGA", NULL, "Analog Right Bypass"}, - - {"Left LOM Inverted From", "DAC", "Left Bypass PGA"}, - {"Right LOM Inverted From", "DAC", "Right Bypass PGA"}, - {"Left LOM Inverted From", "LOP", "Analog Left Bypass"}, - {"Right LOM Inverted From", "LOP", "Analog Right Bypass"}, - - {"Output Left Amplifier", NULL, "Left LOM Inverted From"}, - {"Output Right Amplifier", NULL, "Right LOM Inverted From"}, - - {"DACL", NULL, "Left DAC Power"}, - {"DACR", NULL, "Right DAC Power"}, - - {"Left Bypass PGA", NULL, "Left DAC Power"}, - {"Right Bypass PGA", NULL, "Right DAC Power"}, - - /* output */ - {"LEFT_LO", NULL, "Output Left Amplifier"}, - {"RIGHT_LO", NULL, "Output Right Amplifier"}, - - {"LEFT_LO", NULL, "Codec Power"}, - {"RIGHT_LO", NULL, "Codec Power"}, -}; - -static int dac33_set_bias_level(struct snd_soc_codec *codec, - enum snd_soc_bias_level level) -{ - int ret; - - switch (level) { - case SND_SOC_BIAS_ON: - break; - case SND_SOC_BIAS_PREPARE: - break; - case SND_SOC_BIAS_STANDBY: - if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { - /* Coming from OFF, switch on the codec */ - ret = dac33_hard_power(codec, 1); - if (ret != 0) - return ret; - - dac33_init_chip(codec); - } - break; - case SND_SOC_BIAS_OFF: - /* Do not power off, when the codec is already off */ - if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) - return 0; - ret = dac33_hard_power(codec, 0); - if (ret != 0) - return ret; - break; - } - codec->dapm.bias_level = level; - - return 0; -} - -static inline void dac33_prefill_handler(struct tlv320dac33_priv *dac33) -{ - struct snd_soc_codec *codec = dac33->codec; - unsigned int delay; - unsigned long flags; - - switch (dac33->fifo_mode) { - case DAC33_FIFO_MODE1: - dac33_write16(codec, DAC33_NSAMPLE_MSB, - DAC33_THRREG(dac33->nsample)); - - /* Take the timestamps */ - spin_lock_irqsave(&dac33->lock, flags); - dac33->t_stamp2 = ktime_to_us(ktime_get()); - dac33->t_stamp1 = dac33->t_stamp2; - spin_unlock_irqrestore(&dac33->lock, flags); - - dac33_write16(codec, DAC33_PREFILL_MSB, - DAC33_THRREG(dac33->alarm_threshold)); - /* Enable Alarm Threshold IRQ with a delay */ - delay = SAMPLES_TO_US(dac33->burst_rate, - dac33->alarm_threshold) + 1000; - usleep_range(delay, delay + 500); - dac33_write(codec, DAC33_FIFO_IRQ_MASK, DAC33_MAT); - break; - case DAC33_FIFO_MODE7: - /* Take the timestamp */ - spin_lock_irqsave(&dac33->lock, flags); - dac33->t_stamp1 = ktime_to_us(ktime_get()); - /* Move back the timestamp with drain time */ - dac33->t_stamp1 -= dac33->mode7_us_to_lthr; - spin_unlock_irqrestore(&dac33->lock, flags); - - dac33_write16(codec, DAC33_PREFILL_MSB, - DAC33_THRREG(DAC33_MODE7_MARGIN)); - - /* Enable Upper Threshold IRQ */ - dac33_write(codec, DAC33_FIFO_IRQ_MASK, DAC33_MUT); - break; - default: - dev_warn(codec->dev, "Unhandled FIFO mode: %d\n", - dac33->fifo_mode); - break; - } -} - -static inline void dac33_playback_handler(struct tlv320dac33_priv *dac33) -{ - struct snd_soc_codec *codec = dac33->codec; - unsigned long flags; - - switch (dac33->fifo_mode) { - case DAC33_FIFO_MODE1: - /* Take the timestamp */ - spin_lock_irqsave(&dac33->lock, flags); - dac33->t_stamp2 = ktime_to_us(ktime_get()); - spin_unlock_irqrestore(&dac33->lock, flags); - - dac33_write16(codec, DAC33_NSAMPLE_MSB, - DAC33_THRREG(dac33->nsample)); - break; - case DAC33_FIFO_MODE7: - /* At the moment we are not using interrupts in mode7 */ - break; - default: - dev_warn(codec->dev, "Unhandled FIFO mode: %d\n", - dac33->fifo_mode); - break; - } -} - -static void dac33_work(struct work_struct *work) -{ - struct snd_soc_codec *codec; - struct tlv320dac33_priv *dac33; - u8 reg; - - dac33 = container_of(work, struct tlv320dac33_priv, work); - codec = dac33->codec; - - mutex_lock(&dac33->mutex); - switch (dac33->state) { - case DAC33_PREFILL: - dac33->state = DAC33_PLAYBACK; - dac33_prefill_handler(dac33); - break; - case DAC33_PLAYBACK: - dac33_playback_handler(dac33); - break; - case DAC33_IDLE: - break; - case DAC33_FLUSH: - dac33->state = DAC33_IDLE; - /* Mask all interrupts from dac33 */ - dac33_write(codec, DAC33_FIFO_IRQ_MASK, 0); - - /* flush fifo */ - reg = dac33_read_reg_cache(codec, DAC33_FIFO_CTRL_A); - reg |= DAC33_FIFOFLUSH; - dac33_write(codec, DAC33_FIFO_CTRL_A, reg); - break; - } - mutex_unlock(&dac33->mutex); -} - -static irqreturn_t dac33_interrupt_handler(int irq, void *dev) -{ - struct snd_soc_codec *codec = dev; - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - unsigned long flags; - - spin_lock_irqsave(&dac33->lock, flags); - dac33->t_stamp1 = ktime_to_us(ktime_get()); - spin_unlock_irqrestore(&dac33->lock, flags); - - /* Do not schedule the workqueue in Mode7 */ - if (dac33->fifo_mode != DAC33_FIFO_MODE7) - queue_work(dac33->dac33_wq, &dac33->work); - - return IRQ_HANDLED; -} - -static void dac33_oscwait(struct snd_soc_codec *codec) -{ - int timeout = 60; - u8 reg; - - do { - usleep_range(1000, 2000); - dac33_read(codec, DAC33_INT_OSC_STATUS, ®); - } while (((reg & 0x03) != DAC33_OSCSTATUS_NORMAL) && timeout--); - if ((reg & 0x03) != DAC33_OSCSTATUS_NORMAL) - dev_err(codec->dev, - "internal oscillator calibration failed\n"); -} - -static int dac33_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_codec *codec = rtd->codec; - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - - /* Stream started, save the substream pointer */ - dac33->substream = substream; - - return 0; -} - -static void dac33_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_codec *codec = rtd->codec; - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - - dac33->substream = NULL; -} - -#define CALC_BURST_RATE(bclkdiv, bclk_per_sample) \ - (BURST_BASEFREQ_HZ / bclkdiv / bclk_per_sample) -static int dac33_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; - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - - /* Check parameters for validity */ - switch (params_rate(params)) { - case 44100: - case 48000: - break; - default: - dev_err(codec->dev, "unsupported rate %d\n", - params_rate(params)); - return -EINVAL; - } - - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_S16_LE: - dac33->fifo_size = DAC33_FIFO_SIZE_16BIT; - dac33->burst_rate = CALC_BURST_RATE(dac33->burst_bclkdiv, 32); - break; - case SNDRV_PCM_FORMAT_S32_LE: - dac33->fifo_size = DAC33_FIFO_SIZE_24BIT; - dac33->burst_rate = CALC_BURST_RATE(dac33->burst_bclkdiv, 64); - break; - default: - dev_err(codec->dev, "unsupported format %d\n", - params_format(params)); - return -EINVAL; - } - - return 0; -} - -#define CALC_OSCSET(rate, refclk) ( \ - ((((rate * 10000) / refclk) * 4096) + 7000) / 10000) -#define CALC_RATIOSET(rate, refclk) ( \ - ((((refclk * 100000) / rate) * 16384) + 50000) / 100000) - -/* - * tlv320dac33 is strict on the sequence of the register writes, if the register - * writes happens in different order, than dac33 might end up in unknown state. - * Use the known, working sequence of register writes to initialize the dac33. - */ -static int dac33_prepare_chip(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_codec *codec = rtd->codec; - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - unsigned int oscset, ratioset, pwr_ctrl, reg_tmp; - u8 aictrl_a, aictrl_b, fifoctrl_a; - - switch (substream->runtime->rate) { - case 44100: - case 48000: - oscset = CALC_OSCSET(substream->runtime->rate, dac33->refclk); - ratioset = CALC_RATIOSET(substream->runtime->rate, - dac33->refclk); - break; - default: - dev_err(codec->dev, "unsupported rate %d\n", - substream->runtime->rate); - return -EINVAL; - } - - - aictrl_a = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A); - aictrl_a &= ~(DAC33_NCYCL_MASK | DAC33_WLEN_MASK); - /* Read FIFO control A, and clear FIFO flush bit */ - fifoctrl_a = dac33_read_reg_cache(codec, DAC33_FIFO_CTRL_A); - fifoctrl_a &= ~DAC33_FIFOFLUSH; - - fifoctrl_a &= ~DAC33_WIDTH; - switch (substream->runtime->format) { - case SNDRV_PCM_FORMAT_S16_LE: - aictrl_a |= (DAC33_NCYCL_16 | DAC33_WLEN_16); - fifoctrl_a |= DAC33_WIDTH; - break; - case SNDRV_PCM_FORMAT_S32_LE: - aictrl_a |= (DAC33_NCYCL_32 | DAC33_WLEN_24); - break; - default: - dev_err(codec->dev, "unsupported format %d\n", - substream->runtime->format); - return -EINVAL; - } - - mutex_lock(&dac33->mutex); - - if (!dac33->chip_power) { - /* - * Chip is not powered yet. - * Do the init in the dac33_set_bias_level later. - */ - mutex_unlock(&dac33->mutex); - return 0; - } - - dac33_soft_power(codec, 0); - dac33_soft_power(codec, 1); - - reg_tmp = dac33_read_reg_cache(codec, DAC33_INT_OSC_CTRL); - dac33_write(codec, DAC33_INT_OSC_CTRL, reg_tmp); - - /* Write registers 0x08 and 0x09 (MSB, LSB) */ - dac33_write16(codec, DAC33_INT_OSC_FREQ_RAT_A, oscset); - - /* OSC calibration time */ - dac33_write(codec, DAC33_CALIB_TIME, 96); - - /* adjustment treshold & step */ - dac33_write(codec, DAC33_INT_OSC_CTRL_B, DAC33_ADJTHRSHLD(2) | - DAC33_ADJSTEP(1)); - - /* div=4 / gain=1 / div */ - dac33_write(codec, DAC33_INT_OSC_CTRL_C, DAC33_REFDIV(4)); - - pwr_ctrl = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); - pwr_ctrl |= DAC33_OSCPDNB | DAC33_DACRPDNB | DAC33_DACLPDNB; - dac33_write(codec, DAC33_PWR_CTRL, pwr_ctrl); - - dac33_oscwait(codec); - - if (dac33->fifo_mode) { - /* Generic for all FIFO modes */ - /* 50-51 : ASRC Control registers */ - dac33_write(codec, DAC33_ASRC_CTRL_A, DAC33_SRCLKDIV(1)); - dac33_write(codec, DAC33_ASRC_CTRL_B, 1); /* ??? */ - - /* Write registers 0x34 and 0x35 (MSB, LSB) */ - dac33_write16(codec, DAC33_SRC_REF_CLK_RATIO_A, ratioset); - - /* Set interrupts to high active */ - dac33_write(codec, DAC33_INTP_CTRL_A, DAC33_INTPM_AHIGH); - } else { - /* FIFO bypass mode */ - /* 50-51 : ASRC Control registers */ - dac33_write(codec, DAC33_ASRC_CTRL_A, DAC33_SRCBYP); - dac33_write(codec, DAC33_ASRC_CTRL_B, 0); /* ??? */ - } - - /* Interrupt behaviour configuration */ - switch (dac33->fifo_mode) { - case DAC33_FIFO_MODE1: - dac33_write(codec, DAC33_FIFO_IRQ_MODE_B, - DAC33_ATM(DAC33_FIFO_IRQ_MODE_LEVEL)); - break; - case DAC33_FIFO_MODE7: - dac33_write(codec, DAC33_FIFO_IRQ_MODE_A, - DAC33_UTM(DAC33_FIFO_IRQ_MODE_LEVEL)); - break; - default: - /* in FIFO bypass mode, the interrupts are not used */ - break; - } - - aictrl_b = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B); - - switch (dac33->fifo_mode) { - case DAC33_FIFO_MODE1: - /* - * For mode1: - * Disable the FIFO bypass (Enable the use of FIFO) - * Select nSample mode - * BCLK is only running when data is needed by DAC33 - */ - fifoctrl_a &= ~DAC33_FBYPAS; - fifoctrl_a &= ~DAC33_FAUTO; - if (dac33->keep_bclk) - aictrl_b |= DAC33_BCLKON; - else - aictrl_b &= ~DAC33_BCLKON; - break; - case DAC33_FIFO_MODE7: - /* - * For mode1: - * Disable the FIFO bypass (Enable the use of FIFO) - * Select Threshold mode - * BCLK is only running when data is needed by DAC33 - */ - fifoctrl_a &= ~DAC33_FBYPAS; - fifoctrl_a |= DAC33_FAUTO; - if (dac33->keep_bclk) - aictrl_b |= DAC33_BCLKON; - else - aictrl_b &= ~DAC33_BCLKON; - break; - default: - /* - * For FIFO bypass mode: - * Enable the FIFO bypass (Disable the FIFO use) - * Set the BCLK as continuous - */ - fifoctrl_a |= DAC33_FBYPAS; - aictrl_b |= DAC33_BCLKON; - break; - } - - dac33_write(codec, DAC33_FIFO_CTRL_A, fifoctrl_a); - dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_A, aictrl_a); - dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_B, aictrl_b); - - /* - * BCLK divide ratio - * 0: 1.5 - * 1: 1 - * 2: 2 - * ... - * 254: 254 - * 255: 255 - */ - if (dac33->fifo_mode) - dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_C, - dac33->burst_bclkdiv); - else - if (substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE) - dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_C, 32); - else - dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_C, 16); - - switch (dac33->fifo_mode) { - case DAC33_FIFO_MODE1: - dac33_write16(codec, DAC33_ATHR_MSB, - DAC33_THRREG(dac33->alarm_threshold)); - break; - case DAC33_FIFO_MODE7: - /* - * Configure the threshold levels, and leave 10 sample space - * at the bottom, and also at the top of the FIFO - */ - dac33_write16(codec, DAC33_UTHR_MSB, DAC33_THRREG(dac33->uthr)); - dac33_write16(codec, DAC33_LTHR_MSB, - DAC33_THRREG(DAC33_MODE7_MARGIN)); - break; - default: - break; - } - - mutex_unlock(&dac33->mutex); - - return 0; -} - -static void dac33_calculate_times(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_codec *codec = rtd->codec; - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - unsigned int period_size = substream->runtime->period_size; - unsigned int rate = substream->runtime->rate; - unsigned int nsample_limit; - - /* In bypass mode we don't need to calculate */ - if (!dac33->fifo_mode) - return; - - switch (dac33->fifo_mode) { - case DAC33_FIFO_MODE1: - /* Number of samples under i2c latency */ - dac33->alarm_threshold = US_TO_SAMPLES(rate, - dac33->mode1_latency); - nsample_limit = dac33->fifo_size - dac33->alarm_threshold; - - if (period_size <= dac33->alarm_threshold) - /* - * Configure nSamaple to number of periods, - * which covers the latency requironment. - */ - dac33->nsample = period_size * - ((dac33->alarm_threshold / period_size) + - (dac33->alarm_threshold % period_size ? - 1 : 0)); - else if (period_size > nsample_limit) - dac33->nsample = nsample_limit; - else - dac33->nsample = period_size; - - dac33->mode1_us_burst = SAMPLES_TO_US(dac33->burst_rate, - dac33->nsample); - dac33->t_stamp1 = 0; - dac33->t_stamp2 = 0; - break; - case DAC33_FIFO_MODE7: - dac33->uthr = UTHR_FROM_PERIOD_SIZE(period_size, rate, - dac33->burst_rate) + 9; - if (dac33->uthr > (dac33->fifo_size - DAC33_MODE7_MARGIN)) - dac33->uthr = dac33->fifo_size - DAC33_MODE7_MARGIN; - if (dac33->uthr < (DAC33_MODE7_MARGIN + 10)) - dac33->uthr = (DAC33_MODE7_MARGIN + 10); - - dac33->mode7_us_to_lthr = - SAMPLES_TO_US(substream->runtime->rate, - dac33->uthr - DAC33_MODE7_MARGIN + 1); - dac33->t_stamp1 = 0; - break; - default: - break; - } - -} - -static int dac33_pcm_trigger(struct snd_pcm_substream *substream, int cmd, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_codec *codec = rtd->codec; - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - int ret = 0; - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - if (dac33->fifo_mode) { - dac33->state = DAC33_PREFILL; - queue_work(dac33->dac33_wq, &dac33->work); - } - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - if (dac33->fifo_mode) { - dac33->state = DAC33_FLUSH; - queue_work(dac33->dac33_wq, &dac33->work); - } - break; - default: - ret = -EINVAL; - } - - return ret; -} - -static snd_pcm_sframes_t dac33_dai_delay( - struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_codec *codec = rtd->codec; - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - unsigned long long t0, t1, t_now; - unsigned int time_delta, uthr; - int samples_out, samples_in, samples; - snd_pcm_sframes_t delay = 0; - unsigned long flags; - - switch (dac33->fifo_mode) { - case DAC33_FIFO_BYPASS: - break; - case DAC33_FIFO_MODE1: - spin_lock_irqsave(&dac33->lock, flags); - t0 = dac33->t_stamp1; - t1 = dac33->t_stamp2; - spin_unlock_irqrestore(&dac33->lock, flags); - t_now = ktime_to_us(ktime_get()); - - /* We have not started to fill the FIFO yet, delay is 0 */ - if (!t1) - goto out; - - if (t0 > t1) { - /* - * Phase 1: - * After Alarm threshold, and before nSample write - */ - time_delta = t_now - t0; - samples_out = time_delta ? US_TO_SAMPLES( - substream->runtime->rate, - time_delta) : 0; - - if (likely(dac33->alarm_threshold > samples_out)) - delay = dac33->alarm_threshold - samples_out; - else - delay = 0; - } else if ((t_now - t1) <= dac33->mode1_us_burst) { - /* - * Phase 2: - * After nSample write (during burst operation) - */ - time_delta = t_now - t0; - samples_out = time_delta ? US_TO_SAMPLES( - substream->runtime->rate, - time_delta) : 0; - - time_delta = t_now - t1; - samples_in = time_delta ? US_TO_SAMPLES( - dac33->burst_rate, - time_delta) : 0; - - samples = dac33->alarm_threshold; - samples += (samples_in - samples_out); - - if (likely(samples > 0)) - delay = samples; - else - delay = 0; - } else { - /* - * Phase 3: - * After burst operation, before next alarm threshold - */ - time_delta = t_now - t0; - samples_out = time_delta ? US_TO_SAMPLES( - substream->runtime->rate, - time_delta) : 0; - - samples_in = dac33->nsample; - samples = dac33->alarm_threshold; - samples += (samples_in - samples_out); - - if (likely(samples > 0)) - delay = samples > dac33->fifo_size ? - dac33->fifo_size : samples; - else - delay = 0; - } - break; - case DAC33_FIFO_MODE7: - spin_lock_irqsave(&dac33->lock, flags); - t0 = dac33->t_stamp1; - uthr = dac33->uthr; - spin_unlock_irqrestore(&dac33->lock, flags); - t_now = ktime_to_us(ktime_get()); - - /* We have not started to fill the FIFO yet, delay is 0 */ - if (!t0) - goto out; - - if (t_now <= t0) { - /* - * Either the timestamps are messed or equal. Report - * maximum delay - */ - delay = uthr; - goto out; - } - - time_delta = t_now - t0; - if (time_delta <= dac33->mode7_us_to_lthr) { - /* - * Phase 1: - * After burst (draining phase) - */ - samples_out = US_TO_SAMPLES( - substream->runtime->rate, - time_delta); - - if (likely(uthr > samples_out)) - delay = uthr - samples_out; - else - delay = 0; - } else { - /* - * Phase 2: - * During burst operation - */ - time_delta = time_delta - dac33->mode7_us_to_lthr; - - samples_out = US_TO_SAMPLES( - substream->runtime->rate, - time_delta); - samples_in = US_TO_SAMPLES( - dac33->burst_rate, - time_delta); - delay = DAC33_MODE7_MARGIN + samples_in - samples_out; - - if (unlikely(delay > uthr)) - delay = uthr; - } - break; - default: - dev_warn(codec->dev, "Unhandled FIFO mode: %d\n", - dac33->fifo_mode); - break; - } -out: - return delay; -} - -static int dac33_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; - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - u8 ioc_reg, asrcb_reg; - - ioc_reg = dac33_read_reg_cache(codec, DAC33_INT_OSC_CTRL); - asrcb_reg = dac33_read_reg_cache(codec, DAC33_ASRC_CTRL_B); - switch (clk_id) { - case TLV320DAC33_MCLK: - ioc_reg |= DAC33_REFSEL; - asrcb_reg |= DAC33_SRCREFSEL; - break; - case TLV320DAC33_SLEEPCLK: - ioc_reg &= ~DAC33_REFSEL; - asrcb_reg &= ~DAC33_SRCREFSEL; - break; - default: - dev_err(codec->dev, "Invalid clock ID (%d)\n", clk_id); - break; - } - dac33->refclk = freq; - - dac33_write_reg_cache(codec, DAC33_INT_OSC_CTRL, ioc_reg); - dac33_write_reg_cache(codec, DAC33_ASRC_CTRL_B, asrcb_reg); - - return 0; -} - -static int dac33_set_dai_fmt(struct snd_soc_dai *codec_dai, - unsigned int fmt) -{ - struct snd_soc_codec *codec = codec_dai->codec; - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - u8 aictrl_a, aictrl_b; - - aictrl_a = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A); - aictrl_b = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B); - /* set master/slave audio interface */ - switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: - /* Codec Master */ - aictrl_a |= (DAC33_MSBCLK | DAC33_MSWCLK); - break; - case SND_SOC_DAIFMT_CBS_CFS: - /* Codec Slave */ - if (dac33->fifo_mode) { - dev_err(codec->dev, "FIFO mode requires master mode\n"); - return -EINVAL; - } else - aictrl_a &= ~(DAC33_MSBCLK | DAC33_MSWCLK); - break; - default: - return -EINVAL; - } - - aictrl_a &= ~DAC33_AFMT_MASK; - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_I2S: - aictrl_a |= DAC33_AFMT_I2S; - break; - case SND_SOC_DAIFMT_DSP_A: - aictrl_a |= DAC33_AFMT_DSP; - aictrl_b &= ~DAC33_DATA_DELAY_MASK; - aictrl_b |= DAC33_DATA_DELAY(0); - break; - case SND_SOC_DAIFMT_RIGHT_J: - aictrl_a |= DAC33_AFMT_RIGHT_J; - break; - case SND_SOC_DAIFMT_LEFT_J: - aictrl_a |= DAC33_AFMT_LEFT_J; - break; - default: - dev_err(codec->dev, "Unsupported format (%u)\n", - fmt & SND_SOC_DAIFMT_FORMAT_MASK); - return -EINVAL; - } - - dac33_write_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_A, aictrl_a); - dac33_write_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B, aictrl_b); - - return 0; -} - -static int dac33_soc_probe(struct snd_soc_codec *codec) -{ - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - int ret = 0; - - codec->control_data = dac33->control_data; - codec->hw_write = (hw_write_t) i2c_master_send; - dac33->codec = codec; - - /* Read the tlv320dac33 ID registers */ - ret = dac33_hard_power(codec, 1); - if (ret != 0) { - dev_err(codec->dev, "Failed to power up codec: %d\n", ret); - goto err_power; - } - ret = dac33_read_id(codec); - dac33_hard_power(codec, 0); - - if (ret < 0) { - dev_err(codec->dev, "Failed to read chip ID: %d\n", ret); - ret = -ENODEV; - goto err_power; - } - - /* Check if the IRQ number is valid and request it */ - if (dac33->irq >= 0) { - ret = request_irq(dac33->irq, dac33_interrupt_handler, - IRQF_TRIGGER_RISING, - codec->name, codec); - if (ret < 0) { - dev_err(codec->dev, "Could not request IRQ%d (%d)\n", - dac33->irq, ret); - dac33->irq = -1; - } - if (dac33->irq != -1) { - /* Setup work queue */ - dac33->dac33_wq = - create_singlethread_workqueue("tlv320dac33"); - if (dac33->dac33_wq == NULL) { - free_irq(dac33->irq, codec); - return -ENOMEM; - } - - INIT_WORK(&dac33->work, dac33_work); - } - } - - /* Only add the FIFO controls, if we have valid IRQ number */ - if (dac33->irq >= 0) - snd_soc_add_codec_controls(codec, dac33_mode_snd_controls, - ARRAY_SIZE(dac33_mode_snd_controls)); - -err_power: - return ret; -} - -static int dac33_soc_remove(struct snd_soc_codec *codec) -{ - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - - dac33_set_bias_level(codec, SND_SOC_BIAS_OFF); - - if (dac33->irq >= 0) { - free_irq(dac33->irq, dac33->codec); - destroy_workqueue(dac33->dac33_wq); - } - return 0; -} - -static int dac33_soc_suspend(struct snd_soc_codec *codec) -{ - dac33_set_bias_level(codec, SND_SOC_BIAS_OFF); - - return 0; -} - -static int dac33_soc_resume(struct snd_soc_codec *codec) -{ - dac33_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - - return 0; -} - -static struct snd_soc_codec_driver soc_codec_dev_tlv320dac33 = { - .read = dac33_read_reg_cache, - .write = dac33_write_locked, - .set_bias_level = dac33_set_bias_level, - .idle_bias_off = true, - .reg_cache_size = ARRAY_SIZE(dac33_reg), - .reg_word_size = sizeof(u8), - .reg_cache_default = dac33_reg, - .probe = dac33_soc_probe, - .remove = dac33_soc_remove, - .suspend = dac33_soc_suspend, - .resume = dac33_soc_resume, - - .controls = dac33_snd_controls, - .num_controls = ARRAY_SIZE(dac33_snd_controls), - .dapm_widgets = dac33_dapm_widgets, - .num_dapm_widgets = ARRAY_SIZE(dac33_dapm_widgets), - .dapm_routes = audio_map, - .num_dapm_routes = ARRAY_SIZE(audio_map), -}; - -#define DAC33_RATES (SNDRV_PCM_RATE_44100 | \ - SNDRV_PCM_RATE_48000) -#define DAC33_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE) - -static const struct snd_soc_dai_ops dac33_dai_ops = { - .startup = dac33_startup, - .shutdown = dac33_shutdown, - .hw_params = dac33_hw_params, - .trigger = dac33_pcm_trigger, - .delay = dac33_dai_delay, - .set_sysclk = dac33_set_dai_sysclk, - .set_fmt = dac33_set_dai_fmt, -}; - -static struct snd_soc_dai_driver dac33_dai = { - .name = "tlv320dac33-hifi", - .playback = { - .stream_name = "Playback", - .channels_min = 2, - .channels_max = 2, - .rates = DAC33_RATES, - .formats = DAC33_FORMATS, - .sig_bits = 24, - }, - .ops = &dac33_dai_ops, -}; - -static int __devinit dac33_i2c_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct tlv320dac33_platform_data *pdata; - struct tlv320dac33_priv *dac33; - int ret, i; - - if (client->dev.platform_data == NULL) { - dev_err(&client->dev, "Platform data not set\n"); - return -ENODEV; - } - pdata = client->dev.platform_data; - - dac33 = devm_kzalloc(&client->dev, sizeof(struct tlv320dac33_priv), - GFP_KERNEL); - if (dac33 == NULL) - return -ENOMEM; - - dac33->control_data = client; - mutex_init(&dac33->mutex); - spin_lock_init(&dac33->lock); - - i2c_set_clientdata(client, dac33); - - dac33->power_gpio = pdata->power_gpio; - dac33->burst_bclkdiv = pdata->burst_bclkdiv; - dac33->keep_bclk = pdata->keep_bclk; - dac33->mode1_latency = pdata->mode1_latency; - if (!dac33->mode1_latency) - dac33->mode1_latency = 10000; /* 10ms */ - dac33->irq = client->irq; - /* Disable FIFO use by default */ - dac33->fifo_mode = DAC33_FIFO_BYPASS; - - /* Check if the reset GPIO number is valid and request it */ - if (dac33->power_gpio >= 0) { - ret = gpio_request(dac33->power_gpio, "tlv320dac33 reset"); - if (ret < 0) { - dev_err(&client->dev, - "Failed to request reset GPIO (%d)\n", - dac33->power_gpio); - goto err_gpio; - } - gpio_direction_output(dac33->power_gpio, 0); - } - - for (i = 0; i < ARRAY_SIZE(dac33->supplies); i++) - dac33->supplies[i].supply = dac33_supply_names[i]; - - ret = regulator_bulk_get(&client->dev, ARRAY_SIZE(dac33->supplies), - dac33->supplies); - - if (ret != 0) { - dev_err(&client->dev, "Failed to request supplies: %d\n", ret); - goto err_get; - } - - ret = snd_soc_register_codec(&client->dev, - &soc_codec_dev_tlv320dac33, &dac33_dai, 1); - if (ret < 0) - goto err_register; - - return ret; -err_register: - regulator_bulk_free(ARRAY_SIZE(dac33->supplies), dac33->supplies); -err_get: - if (dac33->power_gpio >= 0) - gpio_free(dac33->power_gpio); -err_gpio: - return ret; -} - -static int __devexit dac33_i2c_remove(struct i2c_client *client) -{ - struct tlv320dac33_priv *dac33 = i2c_get_clientdata(client); - - if (unlikely(dac33->chip_power)) - dac33_hard_power(dac33->codec, 0); - - if (dac33->power_gpio >= 0) - gpio_free(dac33->power_gpio); - - regulator_bulk_free(ARRAY_SIZE(dac33->supplies), dac33->supplies); - - snd_soc_unregister_codec(&client->dev); - return 0; -} - -static const struct i2c_device_id tlv320dac33_i2c_id[] = { - { - .name = "tlv320dac33", - .driver_data = 0, - }, - { }, -}; -MODULE_DEVICE_TABLE(i2c, tlv320dac33_i2c_id); - -static struct i2c_driver tlv320dac33_i2c_driver = { - .driver = { - .name = "tlv320dac33-codec", - .owner = THIS_MODULE, - }, - .probe = dac33_i2c_probe, - .remove = __devexit_p(dac33_i2c_remove), - .id_table = tlv320dac33_i2c_id, -}; - -static int __init dac33_module_init(void) -{ - int r; - r = i2c_add_driver(&tlv320dac33_i2c_driver); - if (r < 0) { - printk(KERN_ERR "DAC33: driver registration failed\n"); - return r; - } - return 0; -} -module_init(dac33_module_init); - -static void __exit dac33_module_exit(void) -{ - i2c_del_driver(&tlv320dac33_i2c_driver); -} -module_exit(dac33_module_exit); - - -MODULE_DESCRIPTION("ASoC TLV320DAC33 codec driver"); -MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>"); -MODULE_LICENSE("GPL"); |