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-rw-r--r--sound/firewire/dice/dice-pcm.c227
1 files changed, 170 insertions, 57 deletions
diff --git a/sound/firewire/dice/dice-pcm.c b/sound/firewire/dice/dice-pcm.c
index 7cb9e9713ac3..08a173170d52 100644
--- a/sound/firewire/dice/dice-pcm.c
+++ b/sound/firewire/dice/dice-pcm.c
@@ -9,43 +9,115 @@
#include "dice.h"
+static int dice_rate_constraint(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_pcm_substream *substream = rule->private;
+ struct snd_dice *dice = substream->private_data;
+ unsigned int index = substream->pcm->device;
+
+ const struct snd_interval *c =
+ hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_interval *r =
+ hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval rates = {
+ .min = UINT_MAX, .max = 0, .integer = 1
+ };
+ unsigned int *pcm_channels;
+ enum snd_dice_rate_mode mode;
+ unsigned int i, rate;
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ pcm_channels = dice->tx_pcm_chs[index];
+ else
+ pcm_channels = dice->rx_pcm_chs[index];
+
+ for (i = 0; i < ARRAY_SIZE(snd_dice_rates); ++i) {
+ rate = snd_dice_rates[i];
+ if (snd_dice_stream_get_rate_mode(dice, rate, &mode) < 0)
+ continue;
+
+ if (!snd_interval_test(c, pcm_channels[mode]))
+ continue;
+
+ rates.min = min(rates.min, rate);
+ rates.max = max(rates.max, rate);
+ }
+
+ return snd_interval_refine(r, &rates);
+}
+
+static int dice_channels_constraint(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_pcm_substream *substream = rule->private;
+ struct snd_dice *dice = substream->private_data;
+ unsigned int index = substream->pcm->device;
+
+ const struct snd_interval *r =
+ hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval *c =
+ hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_interval channels = {
+ .min = UINT_MAX, .max = 0, .integer = 1
+ };
+ unsigned int *pcm_channels;
+ enum snd_dice_rate_mode mode;
+ unsigned int i, rate;
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ pcm_channels = dice->tx_pcm_chs[index];
+ else
+ pcm_channels = dice->rx_pcm_chs[index];
+
+ for (i = 0; i < ARRAY_SIZE(snd_dice_rates); ++i) {
+ rate = snd_dice_rates[i];
+ if (snd_dice_stream_get_rate_mode(dice, rate, &mode) < 0)
+ continue;
+
+ if (!snd_interval_test(r, rate))
+ continue;
+
+ channels.min = min(channels.min, pcm_channels[mode]);
+ channels.max = max(channels.max, pcm_channels[mode]);
+ }
+
+ return snd_interval_refine(c, &channels);
+}
+
static int limit_channels_and_rates(struct snd_dice *dice,
struct snd_pcm_runtime *runtime,
enum amdtp_stream_direction dir,
- unsigned int index, unsigned int size)
+ unsigned int index)
{
struct snd_pcm_hardware *hw = &runtime->hw;
- struct amdtp_stream *stream;
- unsigned int rate;
- __be32 reg;
- int err;
-
- /*
- * Retrieve current Multi Bit Linear Audio data channel and limit to
- * it.
- */
- if (dir == AMDTP_IN_STREAM) {
- stream = &dice->tx_stream[index];
- err = snd_dice_transaction_read_tx(dice,
- size * index + TX_NUMBER_AUDIO,
- &reg, sizeof(reg));
- } else {
- stream = &dice->rx_stream[index];
- err = snd_dice_transaction_read_rx(dice,
- size * index + RX_NUMBER_AUDIO,
- &reg, sizeof(reg));
+ unsigned int *pcm_channels;
+ unsigned int i;
+
+ if (dir == AMDTP_IN_STREAM)
+ pcm_channels = dice->tx_pcm_chs[index];
+ else
+ pcm_channels = dice->rx_pcm_chs[index];
+
+ hw->channels_min = UINT_MAX;
+ hw->channels_max = 0;
+
+ for (i = 0; i < ARRAY_SIZE(snd_dice_rates); ++i) {
+ enum snd_dice_rate_mode mode;
+ unsigned int rate, channels;
+
+ rate = snd_dice_rates[i];
+ if (snd_dice_stream_get_rate_mode(dice, rate, &mode) < 0)
+ continue;
+ hw->rates |= snd_pcm_rate_to_rate_bit(rate);
+
+ channels = pcm_channels[mode];
+ if (channels == 0)
+ continue;
+ hw->channels_min = min(hw->channels_min, channels);
+ hw->channels_max = max(hw->channels_max, channels);
}
- if (err < 0)
- return err;
-
- hw->channels_min = hw->channels_max = be32_to_cpu(reg);
-
- /* Retrieve current sampling transfer frequency and limit to it. */
- err = snd_dice_transaction_get_rate(dice, &rate);
- if (err < 0)
- return err;
- hw->rates = snd_pcm_rate_to_rate_bit(rate);
snd_pcm_limit_hw_rates(runtime);
return 0;
@@ -56,36 +128,34 @@ static int init_hw_info(struct snd_dice *dice,
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_pcm_hardware *hw = &runtime->hw;
+ unsigned int index = substream->pcm->device;
enum amdtp_stream_direction dir;
struct amdtp_stream *stream;
- __be32 reg[2];
- unsigned int count, size;
int err;
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
hw->formats = AM824_IN_PCM_FORMAT_BITS;
dir = AMDTP_IN_STREAM;
- stream = &dice->tx_stream[substream->pcm->device];
- err = snd_dice_transaction_read_tx(dice, TX_NUMBER, reg,
- sizeof(reg));
+ stream = &dice->tx_stream[index];
} else {
hw->formats = AM824_OUT_PCM_FORMAT_BITS;
dir = AMDTP_OUT_STREAM;
- stream = &dice->rx_stream[substream->pcm->device];
- err = snd_dice_transaction_read_rx(dice, RX_NUMBER, reg,
- sizeof(reg));
+ stream = &dice->rx_stream[index];
}
+ err = limit_channels_and_rates(dice, substream->runtime, dir,
+ index);
if (err < 0)
return err;
- count = min_t(unsigned int, be32_to_cpu(reg[0]), MAX_STREAMS);
- if (substream->pcm->device >= count)
- return -ENXIO;
-
- size = be32_to_cpu(reg[1]) * 4;
- err = limit_channels_and_rates(dice, substream->runtime, dir,
- substream->pcm->device, size);
+ err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+ dice_rate_constraint, substream,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+ if (err < 0)
+ return err;
+ err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+ dice_channels_constraint, substream,
+ SNDRV_PCM_HW_PARAM_RATE, -1);
if (err < 0)
return err;
@@ -95,6 +165,8 @@ static int init_hw_info(struct snd_dice *dice,
static int pcm_open(struct snd_pcm_substream *substream)
{
struct snd_dice *dice = substream->private_data;
+ unsigned int source;
+ bool internal;
int err;
err = snd_dice_stream_lock_try(dice);
@@ -105,6 +177,43 @@ static int pcm_open(struct snd_pcm_substream *substream)
if (err < 0)
goto err_locked;
+ err = snd_dice_transaction_get_clock_source(dice, &source);
+ if (err < 0)
+ goto err_locked;
+ switch (source) {
+ case CLOCK_SOURCE_AES1:
+ case CLOCK_SOURCE_AES2:
+ case CLOCK_SOURCE_AES3:
+ case CLOCK_SOURCE_AES4:
+ case CLOCK_SOURCE_AES_ANY:
+ case CLOCK_SOURCE_ADAT:
+ case CLOCK_SOURCE_TDIF:
+ case CLOCK_SOURCE_WC:
+ internal = false;
+ break;
+ default:
+ internal = true;
+ break;
+ }
+
+ /*
+ * When source of clock is not internal or any PCM streams are running,
+ * available sampling rate is limited at current sampling rate.
+ */
+ if (!internal ||
+ amdtp_stream_pcm_running(&dice->tx_stream[0]) ||
+ amdtp_stream_pcm_running(&dice->tx_stream[1]) ||
+ amdtp_stream_pcm_running(&dice->rx_stream[0]) ||
+ amdtp_stream_pcm_running(&dice->rx_stream[1])) {
+ unsigned int rate;
+
+ err = snd_dice_transaction_get_rate(dice, &rate);
+ if (err < 0)
+ goto err_locked;
+ substream->runtime->hw.rate_min = rate;
+ substream->runtime->hw.rate_max = rate;
+ }
+
snd_pcm_set_sync(substream);
end:
return err;
@@ -318,7 +427,6 @@ int snd_dice_create_pcm(struct snd_dice *dice)
.page = snd_pcm_lib_get_vmalloc_page,
.mmap = snd_pcm_lib_mmap_vmalloc,
};
- __be32 reg;
struct snd_pcm *pcm;
unsigned int i, max_capture, max_playback, capture, playback;
int err;
@@ -327,18 +435,23 @@ int snd_dice_create_pcm(struct snd_dice *dice)
if (dice->force_two_pcms) {
max_capture = max_playback = 2;
} else {
+ int j;
max_capture = max_playback = 0;
- err = snd_dice_transaction_read_tx(dice, TX_NUMBER, &reg,
- sizeof(reg));
- if (err < 0)
- return err;
- max_capture = min_t(unsigned int, be32_to_cpu(reg), MAX_STREAMS);
-
- err = snd_dice_transaction_read_rx(dice, RX_NUMBER, &reg,
- sizeof(reg));
- if (err < 0)
- return err;
- max_playback = min_t(unsigned int, be32_to_cpu(reg), MAX_STREAMS);
+ for (i = 0; i < MAX_STREAMS; ++i) {
+ for (j = 0; j < SND_DICE_RATE_MODE_COUNT; ++j) {
+ if (dice->tx_pcm_chs[i][j] > 0) {
+ ++max_capture;
+ break;
+ }
+ }
+
+ for (j = 0; j < SND_DICE_RATE_MODE_COUNT; ++j) {
+ if (dice->rx_pcm_chs[i][j] > 0) {
+ ++max_playback;
+ break;
+ }
+ }
+ }
}
for (i = 0; i < MAX_STREAMS; i++) {
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-30 16:20:29 +0300