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[FFADO-devel] [PATCH 03/13] speakers: Split PCM functionality to a new file
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From: Takashi S. <o-t...@sa...> - 2014-01-10 15:29:58
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To make it easy to work in followed commit.
Signed-off-by: Takashi Sakamoto <o-t...@sa...>
---
sound/firewire/speakers/Makefile | 2 +-
sound/firewire/speakers/speakers.c | 248 +------------------------------
sound/firewire/speakers/speakers.h | 5 +
sound/firewire/speakers/speakers_pcm.c | 259 +++++++++++++++++++++++++++++++++
4 files changed, 266 insertions(+), 248 deletions(-)
create mode 100644 sound/firewire/speakers/speakers_pcm.c
diff --git a/sound/firewire/speakers/Makefile b/sound/firewire/speakers/Makefile
index f46ae1d..a970ccf 100644
--- a/sound/firewire/speakers/Makefile
+++ b/sound/firewire/speakers/Makefile
@@ -1,2 +1,2 @@
-snd-firewire-speakers-objs := speakers_stream.o speakers.o
+snd-firewire-speakers-objs := speakers_stream.o speakers_pcm.o speakers.o
obj-m += snd-firewire-speakers.o
diff --git a/sound/firewire/speakers/speakers.c b/sound/firewire/speakers/speakers.c
index 47d3cc0..20bba46 100644
--- a/sound/firewire/speakers/speakers.c
+++ b/sound/firewire/speakers/speakers.c
@@ -24,252 +24,6 @@ MODULE_DESCRIPTION("FireWire speakers driver");
MODULE_AUTHOR("Clemens Ladisch <cl...@la...>");
MODULE_LICENSE("GPL v2");
-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 fwspk_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 fwspk *fwspk = substream->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
- int err;
-
- runtime->hw = hardware;
-
- err = fwspk->device_info->pcm_constraints(runtime);
- if (err < 0)
- return err;
- err = snd_pcm_limit_hw_rates(runtime);
- if (err < 0)
- return err;
-
- err = snd_pcm_hw_constraint_minmax(runtime,
- SNDRV_PCM_HW_PARAM_PERIOD_TIME,
- 5000, UINT_MAX);
- if (err < 0)
- return err;
-
- err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
- if (err < 0)
- return err;
-
- return 0;
-}
-
-static int fwspk_close(struct snd_pcm_substream *substream)
-{
- return 0;
-}
-
-static int fwspk_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct fwspk *fwspk = substream->private_data;
- int err;
-
- mutex_lock(&fwspk->mutex);
- snd_fwspk_stream_stop(fwspk);
- mutex_unlock(&fwspk->mutex);
-
- err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- if (err < 0)
- goto error;
-
- amdtp_stream_set_parameters(&fwspk->rx_stream,
- params_rate(hw_params),
- params_channels(hw_params),
- 0);
-
- amdtp_stream_set_pcm_format(&fwspk->rx_stream,
- params_format(hw_params));
-
- err = avc_general_set_sig_fmt(fwspk->unit, params_rate(hw_params),
- AVC_GENERAL_PLUG_DIR_IN, 0);
- if (err < 0)
- goto err_buffer;
- if (err != 0x09 /* ACCEPTED */) {
- dev_err(&fwspk->unit->device, "failed to set sample rate\n");
- err = -EIO;
- goto error;
- }
-
- return 0;
-
-err_buffer:
- snd_pcm_lib_free_vmalloc_buffer(substream);
-error:
- return err;
-}
-
-static int fwspk_hw_free(struct snd_pcm_substream *substream)
-{
- struct fwspk *fwspk = substream->private_data;
-
- mutex_lock(&fwspk->mutex);
- snd_fwspk_stream_stop(fwspk);
- mutex_unlock(&fwspk->mutex);
-
- return snd_pcm_lib_free_vmalloc_buffer(substream);
-}
-
-static int fwspk_prepare(struct snd_pcm_substream *substream)
-{
- struct fwspk *fwspk = substream->private_data;
- int err;
-
- mutex_lock(&fwspk->mutex);
-
- snd_fwspk_stream_stop(fwspk);
-
- err = snd_fwspk_stream_start(fwspk);
- if (err < 0)
- goto end;
-
- amdtp_stream_pcm_prepare(&fwspk->rx_stream);
-end:
- mutex_unlock(&fwspk->mutex);
- return err;
-}
-
-static int fwspk_trigger(struct snd_pcm_substream *substream, int cmd)
-{
- struct fwspk *fwspk = 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(&fwspk->rx_stream, pcm);
- return 0;
-}
-
-static snd_pcm_uframes_t fwspk_pointer(struct snd_pcm_substream *substream)
-{
- struct fwspk *fwspk = substream->private_data;
-
- return amdtp_stream_pcm_pointer(&fwspk->rx_stream);
-}
-
-static int fwspk_create_pcm(struct fwspk *fwspk)
-{
- static struct snd_pcm_ops ops = {
- .open = fwspk_open,
- .close = fwspk_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = fwspk_hw_params,
- .hw_free = fwspk_hw_free,
- .prepare = fwspk_prepare,
- .trigger = fwspk_trigger,
- .pointer = fwspk_pointer,
- .page = snd_pcm_lib_get_vmalloc_page,
- .mmap = snd_pcm_lib_mmap_vmalloc,
- };
- struct snd_pcm *pcm;
- int err;
-
- err = snd_pcm_new(fwspk->card, "OXFW970", 0, 1, 0, &pcm);
- if (err < 0)
- return err;
- pcm->private_data = fwspk;
- strcpy(pcm->name, fwspk->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,
@@ -602,7 +356,7 @@ static int fwspk_probe(struct fw_unit *unit,
if (err < 0)
goto err_card;
- err = fwspk_create_pcm(fwspk);
+ err = snd_fwspk_create_pcm(fwspk);
if (err < 0)
goto err_card;
diff --git a/sound/firewire/speakers/speakers.h b/sound/firewire/speakers/speakers.h
index d322b8b..379196d 100644
--- a/sound/firewire/speakers/speakers.h
+++ b/sound/firewire/speakers/speakers.h
@@ -52,3 +52,8 @@ int snd_fwspk_stream_start(struct fwspk *fwspk);
void snd_fwspk_stream_stop(struct fwspk *fwspk);
void snd_fwspk_stream_destroy(struct fwspk *fwspk);
void snd_fwspk_stream_update(struct fwspk *fwspk);
+
+int snd_fwspk_create_pcm(struct fwspk *fwspk);
+
+int firewave_constraints(struct snd_pcm_runtime *runtime);
+int lacie_speakers_constraints(struct snd_pcm_runtime *runtime);
diff --git a/sound/firewire/speakers/speakers_pcm.c b/sound/firewire/speakers/speakers_pcm.c
new file mode 100644
index 0000000..8fa437f
--- /dev/null
+++ b/sound/firewire/speakers/speakers_pcm.c
@@ -0,0 +1,259 @@
+/*
+ * speakers_pcm.c - a part of OXFW970/971-based speakers driver
+ *
+ * Copyright (c) Clemens Ladisch <cl...@la...>
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "speakers.h"
+
+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;
+}
+
+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;
+}
+
+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 fwspk_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 fwspk *fwspk = substream->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ bool used;
+ int err;
+
+ err = cmp_connection_check_used(&fwspk->in_conn, &used);
+ if ((err < 0) || used)
+ goto end;
+
+ runtime->hw = hardware;
+
+ err = fwspk->device_info->pcm_constraints(runtime);
+ if (err < 0)
+ goto end;
+ err = snd_pcm_limit_hw_rates(runtime);
+ if (err < 0)
+ goto end;
+
+ err = snd_pcm_hw_constraint_minmax(runtime,
+ SNDRV_PCM_HW_PARAM_PERIOD_TIME,
+ 5000, UINT_MAX);
+ if (err < 0)
+ goto end;
+
+ err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
+ if (err < 0)
+ goto end;
+end:
+ return err;
+}
+
+static int fwspk_close(struct snd_pcm_substream *substream)
+{
+ return 0;
+}
+
+static int fwspk_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct fwspk *fwspk = substream->private_data;
+ int err;
+
+ mutex_lock(&fwspk->mutex);
+ snd_fwspk_stream_stop(fwspk);
+ mutex_unlock(&fwspk->mutex);
+
+ err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
+ params_buffer_bytes(hw_params));
+ if (err < 0)
+ goto error;
+
+ amdtp_stream_set_parameters(&fwspk->rx_stream,
+ params_rate(hw_params),
+ params_channels(hw_params),
+ 0);
+
+ amdtp_stream_set_pcm_format(&fwspk->rx_stream,
+ params_format(hw_params));
+
+ err = avc_general_set_sig_fmt(fwspk->unit, params_rate(hw_params),
+ AVC_GENERAL_PLUG_DIR_IN, 0);
+ if (err < 0)
+ goto err_buffer;
+ if (err != 0x09 /* ACCEPTED */) {
+ dev_err(&fwspk->unit->device, "failed to set sample rate\n");
+ err = -EIO;
+ goto error;
+ }
+
+ return 0;
+
+err_buffer:
+ snd_pcm_lib_free_vmalloc_buffer(substream);
+error:
+ return err;
+}
+
+static int fwspk_hw_free(struct snd_pcm_substream *substream)
+{
+ struct fwspk *fwspk = substream->private_data;
+
+ mutex_lock(&fwspk->mutex);
+ snd_fwspk_stream_stop(fwspk);
+ mutex_unlock(&fwspk->mutex);
+
+ return snd_pcm_lib_free_vmalloc_buffer(substream);
+}
+
+static int fwspk_prepare(struct snd_pcm_substream *substream)
+{
+ struct fwspk *fwspk = substream->private_data;
+ int err;
+
+ mutex_lock(&fwspk->mutex);
+
+ snd_fwspk_stream_stop(fwspk);
+
+ err = snd_fwspk_stream_start(fwspk);
+ if (err < 0)
+ goto end;
+
+ amdtp_stream_pcm_prepare(&fwspk->rx_stream);
+end:
+ mutex_unlock(&fwspk->mutex);
+ return err;
+}
+
+static int fwspk_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct fwspk *fwspk = 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(&fwspk->rx_stream, pcm);
+ return 0;
+}
+
+static snd_pcm_uframes_t fwspk_pointer(struct snd_pcm_substream *substream)
+{
+ struct fwspk *fwspk = substream->private_data;
+
+ return amdtp_stream_pcm_pointer(&fwspk->rx_stream);
+}
+
+int snd_fwspk_create_pcm(struct fwspk *fwspk)
+{
+ static struct snd_pcm_ops ops = {
+ .open = fwspk_open,
+ .close = fwspk_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = fwspk_hw_params,
+ .hw_free = fwspk_hw_free,
+ .prepare = fwspk_prepare,
+ .trigger = fwspk_trigger,
+ .pointer = fwspk_pointer,
+ .page = snd_pcm_lib_get_vmalloc_page,
+ .mmap = snd_pcm_lib_mmap_vmalloc,
+ };
+ struct snd_pcm *pcm;
+ int err;
+
+ err = snd_pcm_new(fwspk->card, fwspk->card->driver, 0, 1, 0, &pcm);
+ if (err < 0)
+ return err;
+ pcm->private_data = fwspk;
+ strcpy(pcm->name, fwspk->card->shortname);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ops);
+ return 0;
+}
--
1.8.3.2
|