#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>
#define NSAMPLE_MAX 5700
-#define LATENCY_TIME_MS 20
-
#define MODE7_LTHR 10
#define MODE7_UTHR (DAC33_BUFFER_SIZE_SAMPLES - 10)
(1000000000 / ((rate * 1000) / samples))
#define US_TO_SAMPLES(rate, us) \
- (rate / (1000000 / us))
+ (rate / (1000000 / (us < 1000000 ? us : 1000000)))
+#define UTHR_FROM_PERIOD_SIZE(samples, playrate, burstrate) \
+ ((samples * 5000) / ((burstrate * 5000) / (burstrate - playrate)))
-static struct snd_soc_codec *tlv320dac33_codec;
+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,
struct mutex mutex;
struct workqueue_struct *dac33_wq;
struct work_struct work;
- struct snd_soc_codec codec;
+ 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;
* this */
enum dac33_fifo_modes fifo_mode;/* FIFO mode selection */
unsigned int nsample; /* burst read amount from host */
+ int mode1_latency; /* latency caused by the i2c writes in
+ * us */
+ int auto_fifo_config; /* Configure the FIFO based on the
+ * period size */
u8 burst_bclkdiv; /* BCLK divider value in burst mode */
unsigned int burst_rate; /* Interface speed in Burst modes */
* 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] = {
u8 *value)
{
struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
- int val;
+ int val, ret = 0;
*value = reg & 0xff;
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);
value[0] = dac33_read_reg_cache(codec, reg);
}
- return 0;
+ return ret;
}
static int dac33_write(struct snd_soc_codec *codec, unsigned int reg,
/* C : (defaults) */
dac33_write(codec, DAC33_DAC_CTRL_C, 0x00);
- /* 64-65 : L&R DAC power control
- Line In -> OUT 1V/V Gain, DAC -> OUT 4V/V Gain*/
- dac33_write(codec, DAC33_LDAC_PWR_CTRL, DAC33_LROUT_GAIN(2));
- dac33_write(codec, DAC33_RDAC_PWR_CTRL, DAC33_LROUT_GAIN(2));
-
/* 73 : volume soft stepping control,
clock source = internal osc (?) */
dac33_write(codec, DAC33_ANA_VOL_SOFT_STEP_CTRL, DAC33_VOLCLKEN);
- /* 66 : LOP/LOM Modes */
- dac33_write(codec, DAC33_OUT_AMP_CM_CTRL, 0xff);
-
- /* 68 : LOM inverted from LOP */
- dac33_write(codec, DAC33_OUT_AMP_CTRL, (3<<2));
-
dac33_write(codec, DAC33_PWR_CTRL, DAC33_PDNALLB);
/* Restore only selected registers (gains mostly) */
dac33_read_reg_cache(codec, DAC33_LINER_TO_RLO_VOL));
}
-static inline void dac33_read_id(struct snd_soc_codec *codec)
+static inline int dac33_read_id(struct snd_soc_codec *codec)
{
+ int i, ret = 0;
u8 reg;
- dac33_read(codec, DAC33_DEVICE_ID_MSB, ®);
- dac33_read(codec, DAC33_DEVICE_ID_LSB, ®);
- dac33_read(codec, DAC33_DEVICE_REV_ID, ®);
+ 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)
static int dac33_hard_power(struct snd_soc_codec *codec, int power)
{
struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
- int ret;
+ 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);
gpio_set_value(dac33->power_gpio, 1);
dac33->chip_power = 1;
-
- dac33_init_chip(codec);
-
- dac33_soft_power(codec, 1);
} else {
dac33_soft_power(codec, 0);
if (dac33->power_gpio >= 0)
return ret;
}
+static int 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;
+ }
+ return 0;
+}
+
static int dac33_get_nsample(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
return ret;
}
+static int dac33_get_uthr(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->uthr;
+
+ return 0;
+}
+
+static int dac33_set_uthr(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->substream)
+ return -EBUSY;
+
+ if (dac33->uthr == ucontrol->value.integer.value[0])
+ return 0;
+
+ if (ucontrol->value.integer.value[0] < (MODE7_LTHR + 10) ||
+ ucontrol->value.integer.value[0] > MODE7_UTHR)
+ ret = -EINVAL;
+ else
+ dac33->uthr = ucontrol->value.integer.value[0];
+
+ return ret;
+}
+
static int dac33_get_fifo_mode(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
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
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_nsample_snd_controls[] = {
- SOC_SINGLE_EXT("nSample", 0, 0, 5900, 0,
- dac33_get_nsample, dac33_set_nsample),
+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),
};
+static const struct snd_kcontrol_new dac33_fifo_snd_controls[] = {
+ SOC_SINGLE_EXT("nSample", 0, 0, 5900, 0,
+ dac33_get_nsample, dac33_set_nsample),
+ SOC_SINGLE_EXT("UTHR", 0, 0, MODE7_UTHR, 0,
+ dac33_get_uthr, dac33_set_uthr),
+};
+
/* Analog bypass */
static const struct snd_kcontrol_new dac33_dapm_abypassl_control =
SOC_DAPM_SINGLE("Switch", DAC33_LINEL_TO_LLO_VOL, 7, 1, 1);
DAC33_OUT_AMP_PWR_CTRL, 6, 3, 3, 0),
SND_SOC_DAPM_REG(snd_soc_dapm_mixer, "Output Right Amp Power",
DAC33_OUT_AMP_PWR_CTRL, 4, 3, 3, 0),
+
+ SND_SOC_DAPM_PRE("Prepare Playback", playback_event),
};
static const struct snd_soc_dapm_route audio_map[] = {
static int dac33_add_widgets(struct snd_soc_codec *codec)
{
- snd_soc_dapm_new_controls(codec, dac33_dapm_widgets,
- ARRAY_SIZE(dac33_dapm_widgets));
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ snd_soc_dapm_new_controls(dapm, dac33_dapm_widgets,
+ ARRAY_SIZE(dac33_dapm_widgets));
/* set up audio path interconnects */
- snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
+ snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
return 0;
}
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
- if (codec->bias_level == SND_SOC_BIAS_OFF) {
+ 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_soft_power(codec, 0);
+ 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->bias_level = level;
+ codec->dapm.bias_level = level;
return 0;
}
static inline void dac33_prefill_handler(struct tlv320dac33_priv *dac33)
{
- struct snd_soc_codec *codec;
-
- codec = &dac33->codec;
+ struct snd_soc_codec *codec = dac33->codec;
+ unsigned int delay;
switch (dac33->fifo_mode) {
case DAC33_FIFO_MODE1:
dac33_write16(codec, DAC33_NSAMPLE_MSB,
- DAC33_THRREG(dac33->nsample + dac33->alarm_threshold));
+ DAC33_THRREG(dac33->nsample));
/* Take the timestamps */
spin_lock_irq(&dac33->lock);
dac33_write16(codec, DAC33_PREFILL_MSB,
DAC33_THRREG(dac33->alarm_threshold));
/* Enable Alarm Threshold IRQ with a delay */
- udelay(SAMPLES_TO_US(dac33->burst_rate,
- dac33->alarm_threshold));
+ 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:
static inline void dac33_playback_handler(struct tlv320dac33_priv *dac33)
{
- struct snd_soc_codec *codec;
-
- codec = &dac33->codec;
+ struct snd_soc_codec *codec = dac33->codec;
switch (dac33->fifo_mode) {
case DAC33_FIFO_MODE1:
u8 reg;
dac33 = container_of(work, struct tlv320dac33_priv, work);
- codec = &dac33->codec;
+ codec = dac33->codec;
mutex_lock(&dac33->mutex);
switch (dac33->state) {
static void dac33_oscwait(struct snd_soc_codec *codec)
{
- int timeout = 20;
+ int timeout = 60;
u8 reg;
do {
- msleep(1);
+ usleep_range(1000, 2000);
dac33_read(codec, DAC33_INT_OSC_STATUS, ®);
} while (((reg & 0x03) != DAC33_OSCSTATUS_NORMAL) && timeout--);
if ((reg & 0x03) != DAC33_OSCSTATUS_NORMAL)
"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;
+
+ /* Reset the nSample restrictions */
+ dac33->nsample_min = 0;
+ dac33->nsample_max = NSAMPLE_MAX;
+}
+
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_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
+ struct snd_soc_codec *codec = rtd->codec;
/* Check parameters for validity */
switch (params_rate(params)) {
static int dac33_prepare_chip(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
+ 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;
}
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);
* 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(MODE7_UTHR));
+ dac33_write16(codec, DAC33_UTHR_MSB, DAC33_THRREG(dac33->uthr));
dac33_write16(codec, DAC33_LTHR_MSB, DAC33_THRREG(MODE7_LTHR));
break;
default:
static void dac33_calculate_times(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
+ 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;
- /* Number of samples (16bit, stereo) in one period */
- dac33->nsample_min = snd_pcm_lib_period_bytes(substream) / 4;
-
- /* Number of samples (16bit, stereo) in ALSA buffer */
- dac33->nsample_max = snd_pcm_lib_buffer_bytes(substream) / 4;
- /* Subtract one period from the total */
- dac33->nsample_max -= dac33->nsample_min;
-
- /* Number of samples for LATENCY_TIME_MS / 2 */
- dac33->alarm_threshold = substream->runtime->rate /
- (1000 / (LATENCY_TIME_MS / 2));
-
- /* Find and fix up the lowest nsmaple limit */
- nsample_limit = substream->runtime->rate / (1000 / LATENCY_TIME_MS);
-
- if (dac33->nsample_min < nsample_limit)
- dac33->nsample_min = nsample_limit;
-
- if (dac33->nsample < dac33->nsample_min)
- dac33->nsample = dac33->nsample_min;
-
- /*
- * Find and fix up the highest nsmaple limit
- * In order to not overflow the DAC33 buffer substract the
- * alarm_threshold value from the size of the DAC33 buffer
- */
- nsample_limit = DAC33_BUFFER_SIZE_SAMPLES - dac33->alarm_threshold;
+ 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_BUFFER_SIZE_SAMPLES -
+ dac33->alarm_threshold;
+
+ if (dac33->auto_fifo_config) {
+ 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;
+ } else {
+ /* nSample time shall not be shorter than i2c latency */
+ dac33->nsample_min = dac33->alarm_threshold;
+ /*
+ * nSample should not be bigger than alsa buffer minus
+ * size of one period to avoid overruns
+ */
+ dac33->nsample_max = substream->runtime->buffer_size -
+ period_size;
- if (dac33->nsample_max > nsample_limit)
- dac33->nsample_max = nsample_limit;
+ if (dac33->nsample_max > nsample_limit)
+ dac33->nsample_max = nsample_limit;
- if (dac33->nsample > dac33->nsample_max)
- dac33->nsample = dac33->nsample_max;
+ /* Correct the nSample if it is outside of the ranges */
+ if (dac33->nsample < dac33->nsample_min)
+ dac33->nsample = dac33->nsample_min;
+ if (dac33->nsample > dac33->nsample_max)
+ dac33->nsample = dac33->nsample_max;
+ }
- switch (dac33->fifo_mode) {
- case DAC33_FIFO_MODE1:
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:
+ if (dac33->auto_fifo_config) {
+ dac33->uthr = UTHR_FROM_PERIOD_SIZE(
+ period_size,
+ rate,
+ dac33->burst_rate) + 9;
+ if (dac33->uthr > MODE7_UTHR)
+ dac33->uthr = MODE7_UTHR;
+ if (dac33->uthr < (MODE7_LTHR + 10))
+ dac33->uthr = (MODE7_LTHR + 10);
+ }
dac33->mode7_us_to_lthr =
- SAMPLES_TO_US(substream->runtime->rate,
- MODE7_UTHR - MODE7_LTHR + 1);
+ SAMPLES_TO_US(substream->runtime->rate,
+ dac33->uthr - MODE7_LTHR + 1);
dac33->t_stamp1 = 0;
break;
default:
}
-static int dac33_pcm_prepare(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- dac33_calculate_times(substream);
- dac33_prepare_chip(substream);
-
- return 0;
-}
-
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_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
+ struct snd_soc_codec *codec = rtd->codec;
struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
int ret = 0;
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;
+ 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;
+ unsigned int time_delta, uthr;
int samples_out, samples_in, samples;
snd_pcm_sframes_t delay = 0;
case DAC33_FIFO_MODE7:
spin_lock(&dac33->lock);
t0 = dac33->t_stamp1;
+ uthr = dac33->uthr;
spin_unlock(&dac33->lock);
t_now = ktime_to_us(ktime_get());
* Either the timestamps are messed or equal. Report
* maximum delay
*/
- delay = MODE7_UTHR;
+ delay = uthr;
goto out;
}
substream->runtime->rate,
time_delta);
- if (likely(MODE7_UTHR > samples_out))
- delay = MODE7_UTHR - samples_out;
+ if (likely(uthr > samples_out))
+ delay = uthr - samples_out;
else
delay = 0;
} else {
time_delta);
delay = MODE7_LTHR + samples_in - samples_out;
- if (unlikely(delay > MODE7_UTHR))
- delay = MODE7_UTHR;
+ if (unlikely(delay > uthr))
+ delay = uthr;
}
break;
default:
return 0;
}
-static int dac33_soc_probe(struct platform_device *pdev)
+static int dac33_soc_probe(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec;
- struct tlv320dac33_priv *dac33;
+ struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
int ret = 0;
- BUG_ON(!tlv320dac33_codec);
+ codec->control_data = dac33->control_data;
+ codec->hw_write = (hw_write_t) i2c_master_send;
+ codec->dapm.idle_bias_off = 1;
+ dac33->codec = codec;
- codec = tlv320dac33_codec;
- socdev->card->codec = codec;
- dac33 = snd_soc_codec_get_drvdata(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);
- /* register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
if (ret < 0) {
- dev_err(codec->dev, "failed to create pcms\n");
- goto pcm_err;
+ 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 | IRQF_DISABLED,
+ 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);
+ }
}
snd_soc_add_controls(codec, dac33_snd_controls,
ARRAY_SIZE(dac33_snd_controls));
- /* Only add the nSample controls, if we have valid IRQ number */
- if (dac33->irq >= 0)
- snd_soc_add_controls(codec, dac33_nsample_snd_controls,
- ARRAY_SIZE(dac33_nsample_snd_controls));
-
+ /* Only add the FIFO controls, if we have valid IRQ number */
+ if (dac33->irq >= 0) {
+ snd_soc_add_controls(codec, dac33_mode_snd_controls,
+ ARRAY_SIZE(dac33_mode_snd_controls));
+ /* FIFO usage controls only, if autoio config is not selected */
+ if (!dac33->auto_fifo_config)
+ snd_soc_add_controls(codec, dac33_fifo_snd_controls,
+ ARRAY_SIZE(dac33_fifo_snd_controls));
+ }
dac33_add_widgets(codec);
- /* power on device */
- dac33_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
- return 0;
-
-pcm_err:
- dac33_hard_power(codec, 0);
+err_power:
return ret;
}
-static int dac33_soc_remove(struct platform_device *pdev)
+static int dac33_soc_remove(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
+ struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
dac33_set_bias_level(codec, SND_SOC_BIAS_OFF);
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-
+ if (dac33->irq >= 0) {
+ free_irq(dac33->irq, dac33->codec);
+ destroy_workqueue(dac33->dac33_wq);
+ }
return 0;
}
-static int dac33_soc_suspend(struct platform_device *pdev, pm_message_t state)
+static int dac33_soc_suspend(struct snd_soc_codec *codec, pm_message_t state)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
-
dac33_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
-static int dac33_soc_resume(struct platform_device *pdev)
+static int dac33_soc_resume(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
-
dac33_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- dac33_set_bias_level(codec, codec->suspend_bias_level);
return 0;
}
-struct snd_soc_codec_device soc_codec_dev_tlv320dac33 = {
+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,
+ .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,
};
-EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320dac33);
#define DAC33_RATES (SNDRV_PCM_RATE_44100 | \
SNDRV_PCM_RATE_48000)
#define DAC33_FORMATS SNDRV_PCM_FMTBIT_S16_LE
static struct snd_soc_dai_ops dac33_dai_ops = {
+ .startup = dac33_startup,
+ .shutdown = dac33_shutdown,
.hw_params = dac33_hw_params,
- .prepare = dac33_pcm_prepare,
.trigger = dac33_pcm_trigger,
.delay = dac33_dai_delay,
.set_sysclk = dac33_set_dai_sysclk,
.set_fmt = dac33_set_dai_fmt,
};
-struct snd_soc_dai dac33_dai = {
- .name = "tlv320dac33",
+static struct snd_soc_dai_driver dac33_dai = {
+ .name = "tlv320dac33-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.formats = DAC33_FORMATS,},
.ops = &dac33_dai_ops,
};
-EXPORT_SYMBOL_GPL(dac33_dai);
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;
- struct snd_soc_codec *codec;
int ret, i;
if (client->dev.platform_data == NULL) {
if (dac33 == NULL)
return -ENOMEM;
- codec = &dac33->codec;
- snd_soc_codec_set_drvdata(codec, dac33);
- codec->control_data = client;
-
- mutex_init(&codec->mutex);
+ dac33->control_data = client;
mutex_init(&dac33->mutex);
spin_lock_init(&dac33->lock);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
- codec->name = "tlv320dac33";
- codec->owner = THIS_MODULE;
- codec->read = dac33_read_reg_cache;
- codec->write = dac33_write_locked;
- codec->hw_write = (hw_write_t) i2c_master_send;
- codec->bias_level = SND_SOC_BIAS_OFF;
- codec->set_bias_level = dac33_set_bias_level;
- codec->dai = &dac33_dai;
- codec->num_dai = 1;
- codec->reg_cache_size = ARRAY_SIZE(dac33_reg);
- codec->reg_cache = kmemdup(dac33_reg, ARRAY_SIZE(dac33_reg),
- GFP_KERNEL);
- if (codec->reg_cache == NULL) {
- ret = -ENOMEM;
- goto error_reg;
- }
i2c_set_clientdata(client, dac33);
/* Pre calculate the burst rate */
dac33->burst_rate = BURST_BASEFREQ_HZ / dac33->burst_bclkdiv / 32;
dac33->keep_bclk = pdata->keep_bclk;
+ dac33->auto_fifo_config = pdata->auto_fifo_config;
+ dac33->mode1_latency = pdata->mode1_latency;
+ if (!dac33->mode1_latency)
+ dac33->mode1_latency = 10000; /* 10ms */
dac33->irq = client->irq;
dac33->nsample = NSAMPLE_MAX;
dac33->nsample_max = NSAMPLE_MAX;
+ dac33->uthr = MODE7_UTHR;
/* Disable FIFO use by default */
dac33->fifo_mode = DAC33_FIFO_BYPASS;
- tlv320dac33_codec = codec;
-
- codec->dev = &client->dev;
- dac33_dai.dev = codec->dev;
-
/* 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(codec->dev,
+ dev_err(&client->dev,
"Failed to request reset GPIO (%d)\n",
dac33->power_gpio);
- snd_soc_unregister_dai(&dac33_dai);
- snd_soc_unregister_codec(codec);
- goto error_gpio;
+ goto err_gpio;
}
gpio_direction_output(dac33->power_gpio, 0);
}
- /* 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 | IRQF_DISABLED,
- 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, &dac33->codec);
- ret = -ENOMEM;
- goto error_wq;
- }
-
- INIT_WORK(&dac33->work, dac33_work);
- }
- }
-
for (i = 0; i < ARRAY_SIZE(dac33->supplies); i++)
dac33->supplies[i].supply = dac33_supply_names[i];
- ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(dac33->supplies),
+ ret = regulator_bulk_get(&client->dev, ARRAY_SIZE(dac33->supplies),
dac33->supplies);
if (ret != 0) {
- dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
+ dev_err(&client->dev, "Failed to request supplies: %d\n", ret);
goto err_get;
}
- /* 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 error_codec;
- }
- dac33_read_id(codec);
- dac33_hard_power(codec, 0);
-
- ret = snd_soc_register_codec(codec);
- if (ret != 0) {
- dev_err(codec->dev, "Failed to register codec: %d\n", ret);
- goto error_codec;
- }
-
- ret = snd_soc_register_dai(&dac33_dai);
- if (ret != 0) {
- dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
- snd_soc_unregister_codec(codec);
- goto error_codec;
- }
+ ret = snd_soc_register_codec(&client->dev,
+ &soc_codec_dev_tlv320dac33, &dac33_dai, 1);
+ if (ret < 0)
+ goto err_register;
return ret;
-
-error_codec:
+err_register:
regulator_bulk_free(ARRAY_SIZE(dac33->supplies), dac33->supplies);
err_get:
- if (dac33->irq >= 0) {
- free_irq(dac33->irq, &dac33->codec);
- destroy_workqueue(dac33->dac33_wq);
- }
-error_wq:
if (dac33->power_gpio >= 0)
gpio_free(dac33->power_gpio);
-error_gpio:
- kfree(codec->reg_cache);
-error_reg:
- tlv320dac33_codec = NULL;
+err_gpio:
kfree(dac33);
-
return ret;
}
static int __devexit dac33_i2c_remove(struct i2c_client *client)
{
- struct tlv320dac33_priv *dac33;
-
- dac33 = i2c_get_clientdata(client);
+ struct tlv320dac33_priv *dac33 = i2c_get_clientdata(client);
if (unlikely(dac33->chip_power))
- dac33_hard_power(&dac33->codec, 0);
+ dac33_hard_power(dac33->codec, 0);
if (dac33->power_gpio >= 0)
gpio_free(dac33->power_gpio);
- if (dac33->irq >= 0)
- free_irq(dac33->irq, &dac33->codec);
regulator_bulk_free(ARRAY_SIZE(dac33->supplies), dac33->supplies);
- destroy_workqueue(dac33->dac33_wq);
- snd_soc_unregister_dai(&dac33_dai);
- snd_soc_unregister_codec(&dac33->codec);
- kfree(dac33->codec.reg_cache);
+ snd_soc_unregister_codec(&client->dev);
kfree(dac33);
- tlv320dac33_codec = NULL;
return 0;
}
static struct i2c_driver tlv320dac33_i2c_driver = {
.driver = {
- .name = "tlv320dac33",
+ .name = "tlv320dac33-codec",
.owner = THIS_MODULE,
},
.probe = dac33_i2c_probe,
Code Review / linux-2.6.git / blobdiff