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-rw-r--r--sound/soc/codecs/tlv320dac33.c125
-rw-r--r--sound/soc/codecs/twl4030.c2
-rw-r--r--sound/soc/omap/omap-mcbsp.c137
3 files changed, 156 insertions, 108 deletions
diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index 2fa946c..8651b01 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -49,8 +49,6 @@
#define NSAMPLE_MAX 5700
-#define LATENCY_TIME_MS 20
-
#define MODE7_LTHR 10
#define MODE7_UTHR (DAC33_BUFFER_SIZE_SAMPLES - 10)
@@ -62,6 +60,9 @@
#define US_TO_SAMPLES(rate, us) \
(rate / (1000000 / us))
+#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);
@@ -107,6 +108,10 @@ struct tlv320dac33_priv {
* 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 */
@@ -538,13 +543,16 @@ static const struct snd_kcontrol_new dac33_snd_controls[] = {
DAC33_LINEL_TO_LLO_VOL, DAC33_LINER_TO_RLO_VOL, 0, 127, 1),
};
-static const struct snd_kcontrol_new dac33_nsample_snd_controls[] = {
+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),
+ dac33_get_nsample, dac33_set_nsample),
SOC_SINGLE_EXT("UTHR", 0, 0, MODE7_UTHR, 0,
dac33_get_uthr, dac33_set_uthr),
- SOC_ENUM_EXT("FIFO Mode", dac33_fifo_mode_enum,
- dac33_get_fifo_mode, dac33_set_fifo_mode),
};
/* Analog bypass */
@@ -649,7 +657,7 @@ static inline void dac33_prefill_handler(struct tlv320dac33_priv *dac33)
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);
@@ -798,6 +806,10 @@ static void dac33_shutdown(struct snd_pcm_substream *substream,
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,
@@ -1040,54 +1052,68 @@ static void dac33_calculate_times(struct snd_pcm_substream *substream)
struct snd_soc_device *socdev = rtd->socdev;
struct snd_soc_codec *codec = socdev->card->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;
-
- if (dac33->nsample_max > nsample_limit)
- dac33->nsample_max = nsample_limit;
-
- if (dac33->nsample > dac33->nsample_max)
- dac33->nsample = dac33->nsample_max;
-
switch (dac33->fifo_mode) {
case DAC33_FIFO_MODE1:
+ /* Number of samples under i2c latency */
+ dac33->alarm_threshold = US_TO_SAMPLES(rate,
+ dac33->mode1_latency);
+ 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
+ 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;
+ nsample_limit = DAC33_BUFFER_SIZE_SAMPLES -
+ dac33->alarm_threshold;
+ if (dac33->nsample_max > nsample_limit)
+ dac33->nsample_max = nsample_limit;
+
+ /* 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;
+ }
+
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,
dac33->uthr - MODE7_LTHR + 1);
@@ -1385,10 +1411,15 @@ static int dac33_soc_probe(struct platform_device *pdev)
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);
@@ -1519,6 +1550,10 @@ static int __devinit dac33_i2c_probe(struct i2c_client *client,
/* 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;
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index bd557c2..d401c59 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -1432,11 +1432,9 @@ static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
TX2 Left/Right: either analog Left/Right or Digimic1 */
SND_SOC_DAPM_MUX_E("TX1 Capture Route", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_micpathtx1_control, micpath_event,
- SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD|
SND_SOC_DAPM_POST_REG),
SND_SOC_DAPM_MUX_E("TX2 Capture Route", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_micpathtx2_control, micpath_event,
- SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD|
SND_SOC_DAPM_POST_REG),
/* Analog input mixers for the capture amplifiers */
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index aebd3af..86f2139 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -155,13 +155,23 @@ static void omap_mcbsp_set_threshold(struct snd_pcm_substream *substream)
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
struct omap_mcbsp_data *mcbsp_data = to_mcbsp(cpu_dai->private_data);
+ struct omap_pcm_dma_data *dma_data;
int dma_op_mode = omap_mcbsp_get_dma_op_mode(mcbsp_data->bus_id);
int words;
+ dma_data = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
+
/* TODO: Currently, MODE_ELEMENT == MODE_FRAME */
if (dma_op_mode == MCBSP_DMA_MODE_THRESHOLD)
- /* The FIFO size depends on the McBSP word configuration */
- words = snd_pcm_lib_period_bytes(substream) /
+ /*
+ * Configure McBSP threshold based on either:
+ * packet_size, when the sDMA is in packet mode, or
+ * based on the period size.
+ */
+ if (dma_data->packet_size)
+ words = dma_data->packet_size;
+ else
+ words = snd_pcm_lib_period_bytes(substream) /
(mcbsp_data->wlen / 8);
else
words = 1;
@@ -192,31 +202,6 @@ static int omap_mcbsp_hwrule_min_buffersize(struct snd_pcm_hw_params *params,
return snd_interval_refine(buffer_size, &frames);
}
-static int omap_mcbsp_hwrule_max_periodsize(struct snd_pcm_hw_params *params,
- struct snd_pcm_hw_rule *rule)
-{
- struct snd_interval *period_size = hw_param_interval(params,
- SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
- struct snd_interval *channels = hw_param_interval(params,
- SNDRV_PCM_HW_PARAM_CHANNELS);
- struct snd_pcm_substream *substream = rule->private;
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
- struct omap_mcbsp_data *mcbsp_data = to_mcbsp(cpu_dai->private_data);
- struct snd_interval frames;
- int size;
-
- snd_interval_any(&frames);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- size = omap_mcbsp_get_max_tx_threshold(mcbsp_data->bus_id);
- else
- size = omap_mcbsp_get_max_rx_threshold(mcbsp_data->bus_id);
-
- frames.max = size / channels->min;
- frames.integer = 1;
- return snd_interval_refine(period_size, &frames);
-}
-
static int omap_mcbsp_dai_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
@@ -245,10 +230,8 @@ static int omap_mcbsp_dai_startup(struct snd_pcm_substream *substream,
* 4 channels: size is 128 / 4 = 32 frames (4 * 32 words)
*/
if (cpu_is_omap343x()) {
- int dma_op_mode = omap_mcbsp_get_dma_op_mode(bus_id);
-
/*
- * The first rule is for the buffer size, we should not allow
+ * Rule for the buffer size. We should not allow
* smaller buffer than the FIFO size to avoid underruns
*/
snd_pcm_hw_rule_add(substream->runtime, 0,
@@ -257,17 +240,9 @@ static int omap_mcbsp_dai_startup(struct snd_pcm_substream *substream,
mcbsp_data,
SNDRV_PCM_HW_PARAM_BUFFER_SIZE, -1);
- /*
- * In case of threshold mode, the rule will ensure, that the
- * period size is not bigger than the maximum allowed threshold
- * value.
- */
- if (dma_op_mode == MCBSP_DMA_MODE_THRESHOLD)
- snd_pcm_hw_rule_add(substream->runtime, 0,
- SNDRV_PCM_HW_PARAM_CHANNELS,
- omap_mcbsp_hwrule_max_periodsize,
- substream,
- SNDRV_PCM_HW_PARAM_PERIOD_SIZE, -1);
+ /* Make sure, that the period size is always even */
+ snd_pcm_hw_constraint_step(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 2);
}
return err;
@@ -348,11 +323,14 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
struct omap_mcbsp_data *mcbsp_data = to_mcbsp(cpu_dai->private_data);
struct omap_mcbsp_reg_cfg *regs = &mcbsp_data->regs;
- int dma, bus_id = mcbsp_data->bus_id, id = cpu_dai->id;
+ struct omap_pcm_dma_data *dma_data;
+ int dma, bus_id = mcbsp_data->bus_id;
int wlen, channels, wpf, sync_mode = OMAP_DMA_SYNC_ELEMENT;
+ int pkt_size = 0;
unsigned long port;
unsigned int format, div, framesize, master;
+ dma_data = &omap_mcbsp_dai_dma_params[cpu_dai->id][substream->stream];
if (cpu_class_is_omap1()) {
dma = omap1_dma_reqs[bus_id][substream->stream];
port = omap1_mcbsp_port[bus_id][substream->stream];
@@ -365,35 +343,74 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
} else if (cpu_is_omap343x()) {
dma = omap24xx_dma_reqs[bus_id][substream->stream];
port = omap34xx_mcbsp_port[bus_id][substream->stream];
- omap_mcbsp_dai_dma_params[id][substream->stream].set_threshold =
- omap_mcbsp_set_threshold;
- /* TODO: Currently, MODE_ELEMENT == MODE_FRAME */
- if (omap_mcbsp_get_dma_op_mode(bus_id) ==
- MCBSP_DMA_MODE_THRESHOLD)
- sync_mode = OMAP_DMA_SYNC_FRAME;
} else {
return -ENODEV;
}
- omap_mcbsp_dai_dma_params[id][substream->stream].name =
- substream->stream ? "Audio Capture" : "Audio Playback";
- omap_mcbsp_dai_dma_params[id][substream->stream].dma_req = dma;
- omap_mcbsp_dai_dma_params[id][substream->stream].port_addr = port;
- omap_mcbsp_dai_dma_params[id][substream->stream].sync_mode = sync_mode;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
- omap_mcbsp_dai_dma_params[id][substream->stream].data_type =
- OMAP_DMA_DATA_TYPE_S16;
+ dma_data->data_type = OMAP_DMA_DATA_TYPE_S16;
+ wlen = 16;
break;
case SNDRV_PCM_FORMAT_S32_LE:
- omap_mcbsp_dai_dma_params[id][substream->stream].data_type =
- OMAP_DMA_DATA_TYPE_S32;
+ dma_data->data_type = OMAP_DMA_DATA_TYPE_S32;
+ wlen = 32;
break;
default:
return -EINVAL;
}
+ if (cpu_is_omap343x()) {
+ dma_data->set_threshold = omap_mcbsp_set_threshold;
+ /* TODO: Currently, MODE_ELEMENT == MODE_FRAME */
+ if (omap_mcbsp_get_dma_op_mode(bus_id) ==
+ MCBSP_DMA_MODE_THRESHOLD) {
+ int period_words, max_thrsh;
+
+ period_words = params_period_bytes(params) / (wlen / 8);
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ max_thrsh = omap_mcbsp_get_max_tx_threshold(
+ mcbsp_data->bus_id);
+ else
+ max_thrsh = omap_mcbsp_get_max_rx_threshold(
+ mcbsp_data->bus_id);
+ /*
+ * If the period contains less or equal number of words,
+ * we are using the original threshold mode setup:
+ * McBSP threshold = sDMA frame size = period_size
+ * Otherwise we switch to sDMA packet mode:
+ * McBSP threshold = sDMA packet size
+ * sDMA frame size = period size
+ */
+ if (period_words > max_thrsh) {
+ int divider = 0;
+
+ /*
+ * Look for the biggest threshold value, which
+ * divides the period size evenly.
+ */
+ divider = period_words / max_thrsh;
+ if (period_words % max_thrsh)
+ divider++;
+ while (period_words % divider &&
+ divider < period_words)
+ divider++;
+ if (divider == period_words)
+ return -EINVAL;
+
+ pkt_size = period_words / divider;
+ sync_mode = OMAP_DMA_SYNC_PACKET;
+ } else {
+ sync_mode = OMAP_DMA_SYNC_FRAME;
+ }
+ }
+ }
+
+ dma_data->name = substream->stream ? "Audio Capture" : "Audio Playback";
+ dma_data->dma_req = dma;
+ dma_data->port_addr = port;
+ dma_data->sync_mode = sync_mode;
+ dma_data->packet_size = pkt_size;
- snd_soc_dai_set_dma_data(cpu_dai, substream,
- &omap_mcbsp_dai_dma_params[id][substream->stream]);
+ snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
if (mcbsp_data->configured) {
/* McBSP already configured by another stream */
@@ -419,7 +436,6 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
/* Set word lengths */
- wlen = 16;
regs->rcr2 |= RWDLEN2(OMAP_MCBSP_WORD_16);
regs->rcr1 |= RWDLEN1(OMAP_MCBSP_WORD_16);
regs->xcr2 |= XWDLEN2(OMAP_MCBSP_WORD_16);
@@ -427,7 +443,6 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
break;
case SNDRV_PCM_FORMAT_S32_LE:
/* Set word lengths */
- wlen = 32;
regs->rcr2 |= RWDLEN2(OMAP_MCBSP_WORD_32);
regs->rcr1 |= RWDLEN1(OMAP_MCBSP_WORD_32);
regs->xcr2 |= XWDLEN2(OMAP_MCBSP_WORD_32);
generated by cgit v0.10.2 at 2024-11-17 17:10:07 (GMT)