MODULE_LICENSE("GPL v2");
MODULE_ALIAS("snd-firewire-speakers");
-static int firewave_rate_constraint(struct snd_pcm_hw_params *params,
- struct snd_pcm_hw_rule *rule)
-{
- static unsigned int stereo_rates[] = { 48000, 96000 };
- struct snd_interval *channels =
- hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
- struct snd_interval *rate =
- hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
-
- /* two channels work only at 48/96 kHz */
- if (snd_interval_max(channels) < 6)
- return snd_interval_list(rate, 2, stereo_rates, 0);
- return 0;
-}
-
-static int firewave_channels_constraint(struct snd_pcm_hw_params *params,
- struct snd_pcm_hw_rule *rule)
-{
- static const struct snd_interval all_channels = { .min = 6, .max = 6 };
- struct snd_interval *rate =
- hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
- struct snd_interval *channels =
- hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
-
- /* 32/44.1 kHz work only with all six channels */
- if (snd_interval_max(rate) < 48000)
- return snd_interval_refine(channels, &all_channels);
- return 0;
-}
-
-static int firewave_constraints(struct snd_pcm_runtime *runtime)
-{
- static unsigned int channels_list[] = { 2, 6 };
- static struct snd_pcm_hw_constraint_list channels_list_constraint = {
- .count = 2,
- .list = channels_list,
- };
- int err;
-
- runtime->hw.rates = SNDRV_PCM_RATE_32000 |
- SNDRV_PCM_RATE_44100 |
- SNDRV_PCM_RATE_48000 |
- SNDRV_PCM_RATE_96000;
- runtime->hw.channels_max = 6;
-
- err = snd_pcm_hw_constraint_list(runtime, 0,
- SNDRV_PCM_HW_PARAM_CHANNELS,
- &channels_list_constraint);
- if (err < 0)
- return err;
- err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
- firewave_rate_constraint, NULL,
- SNDRV_PCM_HW_PARAM_CHANNELS, -1);
- if (err < 0)
- return err;
- err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
- firewave_channels_constraint, NULL,
- SNDRV_PCM_HW_PARAM_RATE, -1);
- if (err < 0)
- return err;
-
- return 0;
-}
-
-static int lacie_speakers_constraints(struct snd_pcm_runtime *runtime)
-{
- runtime->hw.rates = SNDRV_PCM_RATE_32000 |
- SNDRV_PCM_RATE_44100 |
- SNDRV_PCM_RATE_48000 |
- SNDRV_PCM_RATE_88200 |
- SNDRV_PCM_RATE_96000;
-
- return 0;
-}
-
-static int oxfw_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 = 2,
- .channels_max = 2,
- .buffer_bytes_max = 4 * 1024 * 1024,
- .period_bytes_min = 1,
- .period_bytes_max = UINT_MAX,
- .periods_min = 1,
- .periods_max = UINT_MAX,
- };
- struct snd_oxfw *oxfw = substream->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
- int err;
-
- runtime->hw = hardware;
-
- err = oxfw->device_info->pcm_constraints(runtime);
- if (err < 0)
- return err;
- err = snd_pcm_limit_hw_rates(runtime);
- if (err < 0)
- return err;
-
- err = amdtp_stream_add_pcm_hw_constraints(&oxfw->rx_stream, runtime);
- if (err < 0)
- return err;
-
- return 0;
-}
-
-static int oxfw_close(struct snd_pcm_substream *substream)
-{
- return 0;
-}
-
-static int oxfw_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_oxfw *oxfw = substream->private_data;
- int err;
-
- mutex_lock(&oxfw->mutex);
-
- snd_oxfw_stream_stop_simplex(oxfw);
-
- err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- if (err < 0)
- goto error;
-
- amdtp_stream_set_parameters(&oxfw->rx_stream,
- params_rate(hw_params),
- params_channels(hw_params),
- 0);
-
- amdtp_stream_set_pcm_format(&oxfw->rx_stream,
- params_format(hw_params));
-
- err = avc_general_set_sig_fmt(oxfw->unit, params_rate(hw_params),
- AVC_GENERAL_PLUG_DIR_IN, 0);
- if (err < 0) {
- dev_err(&oxfw->unit->device, "failed to set sample rate\n");
- goto err_buffer;
- }
-
- return 0;
-
-err_buffer:
- snd_pcm_lib_free_vmalloc_buffer(substream);
-error:
- mutex_unlock(&oxfw->mutex);
- return err;
-}
-
-static int oxfw_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_oxfw *oxfw = substream->private_data;
-
- mutex_lock(&oxfw->mutex);
- snd_oxfw_stream_stop_simplex(oxfw);
- mutex_unlock(&oxfw->mutex);
-
- return snd_pcm_lib_free_vmalloc_buffer(substream);
-}
-
-static int oxfw_prepare(struct snd_pcm_substream *substream)
-{
- struct snd_oxfw *oxfw = substream->private_data;
- int err;
-
- mutex_lock(&oxfw->mutex);
-
- snd_oxfw_stream_stop_simplex(oxfw);
-
- err = snd_oxfw_stream_start_simplex(oxfw);
- if (err < 0)
- goto end;
-
- amdtp_stream_pcm_prepare(&oxfw->rx_stream);
-end:
- mutex_unlock(&oxfw->mutex);
- return err;
-}
-
-static int oxfw_trigger(struct snd_pcm_substream *substream, int cmd)
-{
- struct snd_oxfw *oxfw = 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(&oxfw->rx_stream, pcm);
- return 0;
-}
-
-static snd_pcm_uframes_t oxfw_pointer(struct snd_pcm_substream *substream)
-{
- struct snd_oxfw *oxfw = substream->private_data;
-
- return amdtp_stream_pcm_pointer(&oxfw->rx_stream);
-}
-
-static int oxfw_create_pcm(struct snd_oxfw *oxfw)
-{
- static struct snd_pcm_ops ops = {
- .open = oxfw_open,
- .close = oxfw_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = oxfw_hw_params,
- .hw_free = oxfw_hw_free,
- .prepare = oxfw_prepare,
- .trigger = oxfw_trigger,
- .pointer = oxfw_pointer,
- .page = snd_pcm_lib_get_vmalloc_page,
- .mmap = snd_pcm_lib_mmap_vmalloc,
- };
- struct snd_pcm *pcm;
- int err;
-
- err = snd_pcm_new(oxfw->card, "OXFW", 0, 1, 0, &pcm);
- if (err < 0)
- return err;
- pcm->private_data = oxfw;
- strcpy(pcm->name, oxfw->device_info->short_name);
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ops);
- return 0;
-}
-
enum control_action { CTL_READ, CTL_WRITE };
enum control_attribute {
CTL_MIN = 0x02,
dev_name(&unit->device), 100 << fw_dev->max_speed);
strcpy(card->mixername, "OXFW");
- err = oxfw_create_pcm(oxfw);
+ err = snd_oxfw_create_pcm(oxfw);
if (err < 0)
goto error;
projects / deliverable / linux.git / blobdiff