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Diffstat (limited to 'sound/firewire/dice/dice.c')
-rw-r--r--sound/firewire/dice/dice.c288
1 files changed, 1 insertions, 287 deletions
diff --git a/sound/firewire/dice/dice.c b/sound/firewire/dice/dice.c
index e032b1caa776..b76ed06e5c4d 100644
--- a/sound/firewire/dice/dice.c
+++ b/sound/firewire/dice/dice.c
@@ -11,292 +11,6 @@ MODULE_DESCRIPTION("DICE driver");
MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_LICENSE("GPL v2");
-static int dice_rate_constraint(struct snd_pcm_hw_params *params,
- struct snd_pcm_hw_rule *rule)
-{
- struct snd_dice *dice = rule->private;
-
- 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 i, rate, mode, *pcm_channels = dice->rx_channels;
-
- 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_dice *dice = rule->private;
-
- 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 i, rate, mode, *pcm_channels = dice->rx_channels;
-
- 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 dice_open(struct snd_pcm_substream *substream)
-{
- static const struct snd_pcm_hardware hardware = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_BATCH |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_BLOCK_TRANSFER,
- .formats = AMDTP_OUT_PCM_FORMAT_BITS,
- .channels_min = UINT_MAX,
- .channels_max = 0,
- .buffer_bytes_max = 16 * 1024 * 1024,
- .period_bytes_min = 1,
- .period_bytes_max = UINT_MAX,
- .periods_min = 1,
- .periods_max = UINT_MAX,
- };
- struct snd_dice *dice = substream->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
- unsigned int i;
- int err;
-
- err = snd_dice_stream_lock_try(dice);
- if (err < 0)
- goto error;
-
- runtime->hw = hardware;
-
- for (i = 0; i < ARRAY_SIZE(snd_dice_rates); ++i)
- if (dice->clock_caps & (1 << i))
- runtime->hw.rates |=
- snd_pcm_rate_to_rate_bit(snd_dice_rates[i]);
- snd_pcm_limit_hw_rates(runtime);
-
- for (i = 0; i < 3; ++i)
- if (dice->rx_channels[i]) {
- runtime->hw.channels_min = min(runtime->hw.channels_min,
- dice->rx_channels[i]);
- runtime->hw.channels_max = max(runtime->hw.channels_max,
- dice->rx_channels[i]);
- }
-
- err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
- dice_rate_constraint, dice,
- SNDRV_PCM_HW_PARAM_CHANNELS, -1);
- if (err < 0)
- goto err_lock;
- err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
- dice_channels_constraint, dice,
- SNDRV_PCM_HW_PARAM_RATE, -1);
- if (err < 0)
- goto err_lock;
-
- err = amdtp_stream_add_pcm_hw_constraints(&dice->rx_stream, runtime);
- if (err < 0)
- goto err_lock;
-
- return 0;
-
-err_lock:
- snd_dice_stream_lock_release(dice);
-error:
- return err;
-}
-
-static int dice_close(struct snd_pcm_substream *substream)
-{
- struct snd_dice *dice = substream->private_data;
-
- snd_dice_stream_lock_release(dice);
-
- return 0;
-}
-
-static int dice_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_dice *dice = substream->private_data;
- unsigned int mode, rate, channels, i;
- int err;
-
- mutex_lock(&dice->mutex);
- snd_dice_stream_stop(dice);
- mutex_unlock(&dice->mutex);
-
- err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- if (err < 0)
- return err;
-
- rate = params_rate(hw_params);
- err = snd_dice_transaction_set_rate(dice, rate);
- if (err < 0)
- return err;
-
- err = snd_dice_stream_get_rate_mode(dice, rate, &mode);
- if (err < 0)
- return err;
-
- /*
- * At 176.4/192.0 kHz, Dice has a quirk to transfer two PCM frames in
- * one data block of AMDTP packet. Thus sampling transfer frequency is
- * a half of PCM sampling frequency, i.e. PCM frames at 192.0 kHz are
- * transferred on AMDTP packets at 96 kHz. Two successive samples of a
- * channel are stored consecutively in the packet. This quirk is called
- * as 'Dual Wire'.
- * For this quirk, blocking mode is required and PCM buffer size should
- * be aligned to SYT_INTERVAL.
- */
- channels = params_channels(hw_params);
- if (mode > 1) {
- if (channels > AMDTP_MAX_CHANNELS_FOR_PCM / 2) {
- err = -ENOSYS;
- return err;
- }
-
- rate /= 2;
- channels *= 2;
- dice->rx_stream.double_pcm_frames = true;
- } else {
- dice->rx_stream.double_pcm_frames = false;
- }
-
- amdtp_stream_set_parameters(&dice->rx_stream, rate, channels,
- dice->rx_midi_ports[mode]);
- if (mode > 4) {
- channels /= 2;
-
- for (i = 0; i < channels; i++) {
- dice->rx_stream.pcm_positions[i] = i * 2;
- dice->rx_stream.pcm_positions[i + channels] = i * 2 + 1;
- }
- }
-
- amdtp_stream_set_pcm_format(&dice->rx_stream,
- params_format(hw_params));
-
- return 0;
-}
-
-static int dice_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_dice *dice = substream->private_data;
-
- mutex_lock(&dice->mutex);
- snd_dice_stream_stop(dice);
- mutex_unlock(&dice->mutex);
-
- return snd_pcm_lib_free_vmalloc_buffer(substream);
-}
-
-static int dice_prepare(struct snd_pcm_substream *substream)
-{
- struct snd_dice *dice = substream->private_data;
- int err;
-
- mutex_lock(&dice->mutex);
-
- if (amdtp_streaming_error(&dice->rx_stream))
- snd_dice_stream_stop_packets(dice);
-
- err = snd_dice_stream_start(dice);
- if (err < 0) {
- mutex_unlock(&dice->mutex);
- return err;
- }
-
- mutex_unlock(&dice->mutex);
-
- amdtp_stream_pcm_prepare(&dice->rx_stream);
-
- return 0;
-}
-
-static int dice_trigger(struct snd_pcm_substream *substream, int cmd)
-{
- struct snd_dice *dice = substream->private_data;
- struct snd_pcm_substream *pcm;
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- pcm = substream;
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- pcm = NULL;
- break;
- default:
- return -EINVAL;
- }
- amdtp_stream_pcm_trigger(&dice->rx_stream, pcm);
-
- return 0;
-}
-
-static snd_pcm_uframes_t dice_pointer(struct snd_pcm_substream *substream)
-{
- struct snd_dice *dice = substream->private_data;
-
- return amdtp_stream_pcm_pointer(&dice->rx_stream);
-}
-
-static int dice_create_pcm(struct snd_dice *dice)
-{
- static struct snd_pcm_ops ops = {
- .open = dice_open,
- .close = dice_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = dice_hw_params,
- .hw_free = dice_hw_free,
- .prepare = dice_prepare,
- .trigger = dice_trigger,
- .pointer = dice_pointer,
- .page = snd_pcm_lib_get_vmalloc_page,
- .mmap = snd_pcm_lib_mmap_vmalloc,
- };
- struct snd_pcm *pcm;
- int err;
-
- err = snd_pcm_new(dice->card, "DICE", 0, 1, 0, &pcm);
- if (err < 0)
- return err;
- pcm->private_data = dice;
- strcpy(pcm->name, dice->card->shortname);
- pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->ops = &ops;
-
- return 0;
-}
-
static long dice_hwdep_read(struct snd_hwdep *hwdep, char __user *buf,
long count, loff_t *offset)
{
@@ -978,7 +692,7 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
dice_card_strings(dice);
- err = dice_create_pcm(dice);
+ err = snd_dice_create_pcm(dice);
if (err < 0)
goto error;