forked from Minki/linux
ALSA: oxfw: Split PCM functionality to a new file
This is a help for works in followed patches. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto
Takashi Iwai
parent
e2786ca648
commit
3713d93a6a
@ -1,2 +1,2 @@
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snd-oxfw-objs := oxfw-stream.o oxfw.o
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snd-oxfw-objs := oxfw-stream.o oxfw-pcm.o oxfw.o
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obj-m += snd-oxfw.o
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249
sound/firewire/oxfw/oxfw-pcm.c
Normal file
249
sound/firewire/oxfw/oxfw-pcm.c
Normal file
@ -0,0 +1,249 @@
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/*
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* oxfw_pcm.c - a part of driver for OXFW970/971 based devices
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*
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* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
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* Licensed under the terms of the GNU General Public License, version 2.
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*/
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#include "oxfw.h"
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static int firewave_rate_constraint(struct snd_pcm_hw_params *params,
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struct snd_pcm_hw_rule *rule)
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{
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static unsigned int stereo_rates[] = { 48000, 96000 };
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struct snd_interval *channels =
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hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
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struct snd_interval *rate =
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hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
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/* two channels work only at 48/96 kHz */
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if (snd_interval_max(channels) < 6)
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return snd_interval_list(rate, 2, stereo_rates, 0);
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return 0;
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}
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static int firewave_channels_constraint(struct snd_pcm_hw_params *params,
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struct snd_pcm_hw_rule *rule)
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{
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static const struct snd_interval all_channels = { .min = 6, .max = 6 };
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struct snd_interval *rate =
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hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
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struct snd_interval *channels =
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hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
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/* 32/44.1 kHz work only with all six channels */
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if (snd_interval_max(rate) < 48000)
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return snd_interval_refine(channels, &all_channels);
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return 0;
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}
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int firewave_constraints(struct snd_pcm_runtime *runtime)
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{
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static unsigned int channels_list[] = { 2, 6 };
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static struct snd_pcm_hw_constraint_list channels_list_constraint = {
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.count = 2,
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.list = channels_list,
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};
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int err;
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runtime->hw.rates = SNDRV_PCM_RATE_32000 |
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SNDRV_PCM_RATE_44100 |
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SNDRV_PCM_RATE_48000 |
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SNDRV_PCM_RATE_96000;
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runtime->hw.channels_max = 6;
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err = snd_pcm_hw_constraint_list(runtime, 0,
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SNDRV_PCM_HW_PARAM_CHANNELS,
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&channels_list_constraint);
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if (err < 0)
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return err;
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err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
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firewave_rate_constraint, NULL,
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SNDRV_PCM_HW_PARAM_CHANNELS, -1);
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if (err < 0)
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return err;
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err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
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firewave_channels_constraint, NULL,
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SNDRV_PCM_HW_PARAM_RATE, -1);
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if (err < 0)
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return err;
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return 0;
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}
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int lacie_speakers_constraints(struct snd_pcm_runtime *runtime)
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{
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runtime->hw.rates = SNDRV_PCM_RATE_32000 |
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SNDRV_PCM_RATE_44100 |
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SNDRV_PCM_RATE_48000 |
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SNDRV_PCM_RATE_88200 |
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SNDRV_PCM_RATE_96000;
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return 0;
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}
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static int pcm_open(struct snd_pcm_substream *substream)
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{
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static const struct snd_pcm_hardware hardware = {
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.info = SNDRV_PCM_INFO_MMAP |
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SNDRV_PCM_INFO_MMAP_VALID |
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SNDRV_PCM_INFO_BATCH |
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SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_BLOCK_TRANSFER,
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.formats = AMDTP_OUT_PCM_FORMAT_BITS,
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.channels_min = 2,
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.channels_max = 2,
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.buffer_bytes_max = 4 * 1024 * 1024,
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.period_bytes_min = 1,
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.period_bytes_max = UINT_MAX,
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.periods_min = 1,
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.periods_max = UINT_MAX,
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};
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struct snd_oxfw *oxfw = substream->private_data;
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struct snd_pcm_runtime *runtime = substream->runtime;
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bool used;
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int err;
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err = cmp_connection_check_used(&oxfw->in_conn, &used);
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if ((err < 0) || used)
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goto end;
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runtime->hw = hardware;
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err = oxfw->device_info->pcm_constraints(runtime);
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if (err < 0)
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goto end;
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err = snd_pcm_limit_hw_rates(runtime);
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if (err < 0)
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goto end;
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err = amdtp_stream_add_pcm_hw_constraints(&oxfw->rx_stream, runtime);
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end:
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return err;
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}
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static int pcm_close(struct snd_pcm_substream *substream)
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{
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return 0;
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}
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static int pcm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *hw_params)
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{
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struct snd_oxfw *oxfw = substream->private_data;
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int err;
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mutex_lock(&oxfw->mutex);
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snd_oxfw_stream_stop_simplex(oxfw);
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err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
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params_buffer_bytes(hw_params));
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if (err < 0)
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goto error;
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amdtp_stream_set_parameters(&oxfw->rx_stream,
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params_rate(hw_params),
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params_channels(hw_params),
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0);
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amdtp_stream_set_pcm_format(&oxfw->rx_stream,
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params_format(hw_params));
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err = avc_general_set_sig_fmt(oxfw->unit, params_rate(hw_params),
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AVC_GENERAL_PLUG_DIR_IN, 0);
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if (err < 0) {
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dev_err(&oxfw->unit->device, "failed to set sample rate\n");
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goto err_buffer;
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}
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return 0;
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err_buffer:
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snd_pcm_lib_free_vmalloc_buffer(substream);
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error:
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mutex_unlock(&oxfw->mutex);
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return err;
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}
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static int pcm_hw_free(struct snd_pcm_substream *substream)
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{
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struct snd_oxfw *oxfw = substream->private_data;
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mutex_lock(&oxfw->mutex);
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snd_oxfw_stream_stop_simplex(oxfw);
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mutex_unlock(&oxfw->mutex);
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return snd_pcm_lib_free_vmalloc_buffer(substream);
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}
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static int pcm_prepare(struct snd_pcm_substream *substream)
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{
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struct snd_oxfw *oxfw = substream->private_data;
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int err;
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mutex_lock(&oxfw->mutex);
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snd_oxfw_stream_stop_simplex(oxfw);
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err = snd_oxfw_stream_start_simplex(oxfw);
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if (err < 0)
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goto end;
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amdtp_stream_pcm_prepare(&oxfw->rx_stream);
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end:
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mutex_unlock(&oxfw->mutex);
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return err;
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}
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static int pcm_trigger(struct snd_pcm_substream *substream, int cmd)
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{
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struct snd_oxfw *oxfw = substream->private_data;
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struct snd_pcm_substream *pcm;
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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pcm = substream;
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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pcm = NULL;
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break;
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default:
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return -EINVAL;
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}
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amdtp_stream_pcm_trigger(&oxfw->rx_stream, pcm);
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return 0;
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}
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static snd_pcm_uframes_t pcm_pointer(struct snd_pcm_substream *substream)
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{
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struct snd_oxfw *oxfw = substream->private_data;
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return amdtp_stream_pcm_pointer(&oxfw->rx_stream);
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}
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int snd_oxfw_create_pcm(struct snd_oxfw *oxfw)
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{
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static struct snd_pcm_ops ops = {
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.open = pcm_open,
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.close = pcm_close,
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.ioctl = snd_pcm_lib_ioctl,
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.hw_params = pcm_hw_params,
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.hw_free = pcm_hw_free,
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.prepare = pcm_prepare,
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.trigger = pcm_trigger,
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.pointer = pcm_pointer,
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.page = snd_pcm_lib_get_vmalloc_page,
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.mmap = snd_pcm_lib_mmap_vmalloc,
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};
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struct snd_pcm *pcm;
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int err;
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err = snd_pcm_new(oxfw->card, oxfw->card->driver, 0, 1, 0, &pcm);
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if (err < 0)
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return err;
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pcm->private_data = oxfw;
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strcpy(pcm->name, oxfw->card->shortname);
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snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ops);
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return 0;
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}
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@ -25,244 +25,6 @@ MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("snd-firewire-speakers");
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static int firewave_rate_constraint(struct snd_pcm_hw_params *params,
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struct snd_pcm_hw_rule *rule)
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{
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static unsigned int stereo_rates[] = { 48000, 96000 };
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struct snd_interval *channels =
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hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
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struct snd_interval *rate =
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hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
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/* two channels work only at 48/96 kHz */
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if (snd_interval_max(channels) < 6)
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return snd_interval_list(rate, 2, stereo_rates, 0);
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return 0;
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}
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static int firewave_channels_constraint(struct snd_pcm_hw_params *params,
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struct snd_pcm_hw_rule *rule)
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{
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static const struct snd_interval all_channels = { .min = 6, .max = 6 };
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struct snd_interval *rate =
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hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
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struct snd_interval *channels =
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hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
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/* 32/44.1 kHz work only with all six channels */
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if (snd_interval_max(rate) < 48000)
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return snd_interval_refine(channels, &all_channels);
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return 0;
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}
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static int firewave_constraints(struct snd_pcm_runtime *runtime)
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{
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static unsigned int channels_list[] = { 2, 6 };
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static struct snd_pcm_hw_constraint_list channels_list_constraint = {
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.count = 2,
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.list = channels_list,
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};
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int err;
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runtime->hw.rates = SNDRV_PCM_RATE_32000 |
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SNDRV_PCM_RATE_44100 |
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SNDRV_PCM_RATE_48000 |
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SNDRV_PCM_RATE_96000;
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runtime->hw.channels_max = 6;
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err = snd_pcm_hw_constraint_list(runtime, 0,
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SNDRV_PCM_HW_PARAM_CHANNELS,
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&channels_list_constraint);
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if (err < 0)
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return err;
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err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
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firewave_rate_constraint, NULL,
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SNDRV_PCM_HW_PARAM_CHANNELS, -1);
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if (err < 0)
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return err;
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err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
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firewave_channels_constraint, NULL,
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SNDRV_PCM_HW_PARAM_RATE, -1);
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if (err < 0)
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return err;
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return 0;
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}
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static int lacie_speakers_constraints(struct snd_pcm_runtime *runtime)
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{
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runtime->hw.rates = SNDRV_PCM_RATE_32000 |
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SNDRV_PCM_RATE_44100 |
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SNDRV_PCM_RATE_48000 |
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SNDRV_PCM_RATE_88200 |
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SNDRV_PCM_RATE_96000;
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return 0;
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}
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static int oxfw_open(struct snd_pcm_substream *substream)
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{
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static const struct snd_pcm_hardware hardware = {
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.info = SNDRV_PCM_INFO_MMAP |
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SNDRV_PCM_INFO_MMAP_VALID |
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SNDRV_PCM_INFO_BATCH |
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SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_BLOCK_TRANSFER,
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.formats = AMDTP_OUT_PCM_FORMAT_BITS,
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.channels_min = 2,
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.channels_max = 2,
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.buffer_bytes_max = 4 * 1024 * 1024,
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.period_bytes_min = 1,
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.period_bytes_max = UINT_MAX,
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.periods_min = 1,
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.periods_max = UINT_MAX,
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};
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struct snd_oxfw *oxfw = substream->private_data;
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struct snd_pcm_runtime *runtime = substream->runtime;
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int err;
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runtime->hw = hardware;
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err = oxfw->device_info->pcm_constraints(runtime);
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if (err < 0)
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return err;
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err = snd_pcm_limit_hw_rates(runtime);
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if (err < 0)
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return err;
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err = amdtp_stream_add_pcm_hw_constraints(&oxfw->rx_stream, runtime);
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if (err < 0)
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return err;
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return 0;
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}
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static int oxfw_close(struct snd_pcm_substream *substream)
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{
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return 0;
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}
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static int oxfw_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *hw_params)
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{
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struct snd_oxfw *oxfw = substream->private_data;
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int err;
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mutex_lock(&oxfw->mutex);
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snd_oxfw_stream_stop_simplex(oxfw);
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err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
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params_buffer_bytes(hw_params));
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if (err < 0)
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goto error;
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amdtp_stream_set_parameters(&oxfw->rx_stream,
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params_rate(hw_params),
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params_channels(hw_params),
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0);
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amdtp_stream_set_pcm_format(&oxfw->rx_stream,
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params_format(hw_params));
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err = avc_general_set_sig_fmt(oxfw->unit, params_rate(hw_params),
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AVC_GENERAL_PLUG_DIR_IN, 0);
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if (err < 0) {
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dev_err(&oxfw->unit->device, "failed to set sample rate\n");
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goto err_buffer;
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}
|
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return 0;
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err_buffer:
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snd_pcm_lib_free_vmalloc_buffer(substream);
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error:
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mutex_unlock(&oxfw->mutex);
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return err;
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}
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static int oxfw_hw_free(struct snd_pcm_substream *substream)
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{
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struct snd_oxfw *oxfw = substream->private_data;
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mutex_lock(&oxfw->mutex);
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snd_oxfw_stream_stop_simplex(oxfw);
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mutex_unlock(&oxfw->mutex);
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return snd_pcm_lib_free_vmalloc_buffer(substream);
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}
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static int oxfw_prepare(struct snd_pcm_substream *substream)
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{
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struct snd_oxfw *oxfw = substream->private_data;
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int err;
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mutex_lock(&oxfw->mutex);
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snd_oxfw_stream_stop_simplex(oxfw);
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err = snd_oxfw_stream_start_simplex(oxfw);
|
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if (err < 0)
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goto end;
|
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amdtp_stream_pcm_prepare(&oxfw->rx_stream);
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end:
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mutex_unlock(&oxfw->mutex);
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return err;
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}
|
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static int oxfw_trigger(struct snd_pcm_substream *substream, int cmd)
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{
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struct snd_oxfw *oxfw = substream->private_data;
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struct snd_pcm_substream *pcm;
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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pcm = substream;
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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pcm = NULL;
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break;
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default:
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return -EINVAL;
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}
|
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amdtp_stream_pcm_trigger(&oxfw->rx_stream, pcm);
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return 0;
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}
|
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|
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static snd_pcm_uframes_t oxfw_pointer(struct snd_pcm_substream *substream)
|
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{
|
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struct snd_oxfw *oxfw = substream->private_data;
|
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|
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return amdtp_stream_pcm_pointer(&oxfw->rx_stream);
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}
|
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|
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static int oxfw_create_pcm(struct snd_oxfw *oxfw)
|
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{
|
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static struct snd_pcm_ops ops = {
|
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.open = oxfw_open,
|
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.close = oxfw_close,
|
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.ioctl = snd_pcm_lib_ioctl,
|
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.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,
|
||||
@ -587,7 +349,7 @@ static int oxfw_probe(struct fw_unit *unit,
|
||||
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;
|
||||
|
||||
|
||||
@ -54,3 +54,7 @@ int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw);
|
||||
void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw);
|
||||
void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw);
|
||||
void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw);
|
||||
|
||||
int firewave_constraints(struct snd_pcm_runtime *runtime);
|
||||
int lacie_speakers_constraints(struct snd_pcm_runtime *runtime);
|
||||
int snd_oxfw_create_pcm(struct snd_oxfw *oxfw);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user