diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 07:07:14 +0900 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 07:07:14 +0900 |
commit | f5a246eab9a268f51ba8189ea5b098a1bfff200e (patch) | |
tree | a6ff7169e0bcaca498d9aec8b0624de1b74eaecb /sound/soc/soc-compress.c | |
parent | d5bbd43d5f450c3fca058f5b85f3dfb4e8cc88c9 (diff) | |
parent | 7ff34ad80b7080fafaac8efa9ef0061708eddd51 (diff) |
Merge tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"This contains pretty many small commits covering fairly large range of
files in sound/ directory. Partly because of additional API support
and partly because of constantly developed ASoC and ARM stuff.
Some highlights:
- Introduced the helper function and documentation for exposing the
channel map via control API, as discussed in Plumbers; most of PCI
drivers are covered, will follow more drivers later
- Most of drivers have been replaced with the new PM callbacks (if
the bus is supported)
- HD-audio controller got the support of runtime PM and the support
of D3 clock-stop. Also changing the power_save option in sysfs
kicks off immediately to enable / disable the power-save mode.
- Another significant code change in HD-audio is the rewrite of
firmware loading code. Other than that, most of changes in
HD-audio are continued cleanups and standardization for the generic
auto parser and bug fixes (HBR, device-specific fixups), in
addition to the support of channel-map API.
- Addition of ASoC bindings for the compressed API, used by the
mid-x86 drivers.
- Lots of cleanups and API refreshes for ASoC codec drivers and
DaVinci.
- Conversion of OMAP to dmaengine.
- New machine driver for Wolfson Microelectronics Bells.
- New CODEC driver for Wolfson Microelectronics WM0010.
- Enhancements to the ux500 and wm2000 drivers
- A new driver for DA9055 and the support for regulator bypass mode."
Fix up various arm soc header file reorg conflicts.
* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (339 commits)
ALSA: hda - Add new codec ALC283 ALC290 support
ALSA: hda - avoid unneccesary indices on "Headphone Jack" controls
ALSA: hda - fix indices on boost volume on Conexant
ALSA: aloop - add locking to timer access
ALSA: hda - Fix hang caused by race during suspend.
sound: Remove unnecessary semicolon
ALSA: hda/realtek - Fix detection of ALC271X codec
ALSA: hda - Add inverted internal mic quirk for Lenovo IdeaPad U310
ALSA: hda - make Realtek/Sigmatel/Conexant use the generic unsol event
ALSA: hda - make a generic unsol event handler
ASoC: codecs: Add DA9055 codec driver
ASoC: eukrea-tlv320: Convert it to platform driver
ALSA: ASoC: add DT bindings for CS4271
ASoC: wm_hubs: Ensure volume updates are handled during class W startup
ASoC: wm5110: Adding missing volume update bits
ASoC: wm5110: Add OUT3R support
ASoC: wm5110: Add AEC loopback support
ASoC: wm5110: Rename EPOUT to HPOUT3
ASoC: arizona: Add more clock rates
ASoC: arizona: Add more DSP options for mixer input muxes
...
Diffstat (limited to 'sound/soc/soc-compress.c')
-rw-r--r-- | sound/soc/soc-compress.c | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c new file mode 100644 index 000000000000..967d0e173e1b --- /dev/null +++ b/sound/soc/soc-compress.c @@ -0,0 +1,294 @@ +/* + * soc-compress.c -- ALSA SoC Compress + * + * Copyright (C) 2012 Intel Corp. + * + * Authors: Namarta Kohli <namartax.kohli@intel.com> + * Ramesh Babu K V <ramesh.babu@linux.intel.com> + * Vinod Koul <vinod.koul@linux.intel.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/workqueue.h> +#include <sound/core.h> +#include <sound/compress_params.h> +#include <sound/compress_driver.h> +#include <sound/soc.h> +#include <sound/initval.h> + +static int soc_compr_open(struct snd_compr_stream *cstream) +{ + struct snd_soc_pcm_runtime *rtd = cstream->private_data; + struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + int ret = 0; + + if (platform->driver->compr_ops && platform->driver->compr_ops->open) { + ret = platform->driver->compr_ops->open(cstream); + if (ret < 0) { + pr_err("compress asoc: can't open platform %s\n", platform->name); + goto out; + } + } + + if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) { + ret = rtd->dai_link->compr_ops->startup(cstream); + if (ret < 0) { + pr_err("compress asoc: %s startup failed\n", rtd->dai_link->name); + goto machine_err; + } + } + + if (cstream->direction == SND_COMPRESS_PLAYBACK) { + cpu_dai->playback_active++; + codec_dai->playback_active++; + } else { + cpu_dai->capture_active++; + codec_dai->capture_active++; + } + + cpu_dai->active++; + codec_dai->active++; + rtd->codec->active++; + + return 0; + +machine_err: + if (platform->driver->compr_ops && platform->driver->compr_ops->free) + platform->driver->compr_ops->free(cstream); +out: + return ret; +} + +static int soc_compr_free(struct snd_compr_stream *cstream) +{ + struct snd_soc_pcm_runtime *rtd = cstream->private_data; + struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_codec *codec = rtd->codec; + + if (cstream->direction == SND_COMPRESS_PLAYBACK) { + cpu_dai->playback_active--; + codec_dai->playback_active--; + } else { + cpu_dai->capture_active--; + codec_dai->capture_active--; + } + + snd_soc_dai_digital_mute(codec_dai, 1); + + cpu_dai->active--; + codec_dai->active--; + codec->active--; + + if (!cpu_dai->active) + cpu_dai->rate = 0; + + if (!codec_dai->active) + codec_dai->rate = 0; + + + if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown) + rtd->dai_link->compr_ops->shutdown(cstream); + + if (platform->driver->compr_ops && platform->driver->compr_ops->free) + platform->driver->compr_ops->free(cstream); + cpu_dai->runtime = NULL; + + if (cstream->direction == SND_COMPRESS_PLAYBACK) { + if (!rtd->pmdown_time || codec->ignore_pmdown_time || + rtd->dai_link->ignore_pmdown_time) { + snd_soc_dapm_stream_event(rtd, + SNDRV_PCM_STREAM_PLAYBACK, + SND_SOC_DAPM_STREAM_STOP); + } else + codec_dai->pop_wait = 1; + schedule_delayed_work(&rtd->delayed_work, + msecs_to_jiffies(rtd->pmdown_time)); + } else { + /* capture streams can be powered down now */ + snd_soc_dapm_stream_event(rtd, + SNDRV_PCM_STREAM_CAPTURE, + SND_SOC_DAPM_STREAM_STOP); + } + + return 0; +} + +static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) +{ + + struct snd_soc_pcm_runtime *rtd = cstream->private_data; + struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + int ret = 0; + + if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { + ret = platform->driver->compr_ops->trigger(cstream, cmd); + if (ret < 0) + return ret; + } + + if (cmd == SNDRV_PCM_TRIGGER_START) + snd_soc_dai_digital_mute(codec_dai, 0); + else if (cmd == SNDRV_PCM_TRIGGER_STOP) + snd_soc_dai_digital_mute(codec_dai, 1); + + return ret; +} + +static int soc_compr_set_params(struct snd_compr_stream *cstream, + struct snd_compr_params *params) +{ + struct snd_soc_pcm_runtime *rtd = cstream->private_data; + struct snd_soc_platform *platform = rtd->platform; + int ret = 0; + + /* first we call set_params for the platform driver + * this should configure the soc side + * if the machine has compressed ops then we call that as well + * expectation is that platform and machine will configure everything + * for this compress path, like configuring pcm port for codec + */ + if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { + ret = platform->driver->compr_ops->set_params(cstream, params); + if (ret < 0) + return ret; + } + + if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) { + ret = rtd->dai_link->compr_ops->set_params(cstream); + if (ret < 0) + return ret; + } + + snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, + SND_SOC_DAPM_STREAM_START); + + return ret; +} + +static int soc_compr_get_params(struct snd_compr_stream *cstream, + struct snd_codec *params) +{ + struct snd_soc_pcm_runtime *rtd = cstream->private_data; + struct snd_soc_platform *platform = rtd->platform; + int ret = 0; + + if (platform->driver->compr_ops && platform->driver->compr_ops->get_params) + ret = platform->driver->compr_ops->get_params(cstream, params); + + return ret; +} + +static int soc_compr_get_caps(struct snd_compr_stream *cstream, + struct snd_compr_caps *caps) +{ + struct snd_soc_pcm_runtime *rtd = cstream->private_data; + struct snd_soc_platform *platform = rtd->platform; + int ret = 0; + + if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps) + ret = platform->driver->compr_ops->get_caps(cstream, caps); + + return ret; +} + +static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream, + struct snd_compr_codec_caps *codec) +{ + struct snd_soc_pcm_runtime *rtd = cstream->private_data; + struct snd_soc_platform *platform = rtd->platform; + int ret = 0; + + if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps) + ret = platform->driver->compr_ops->get_codec_caps(cstream, codec); + + return ret; +} + +static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) +{ + struct snd_soc_pcm_runtime *rtd = cstream->private_data; + struct snd_soc_platform *platform = rtd->platform; + int ret = 0; + + if (platform->driver->compr_ops && platform->driver->compr_ops->ack) + ret = platform->driver->compr_ops->ack(cstream, bytes); + + return ret; +} + +static int soc_compr_pointer(struct snd_compr_stream *cstream, + struct snd_compr_tstamp *tstamp) +{ + struct snd_soc_pcm_runtime *rtd = cstream->private_data; + struct snd_soc_platform *platform = rtd->platform; + + if (platform->driver->compr_ops && platform->driver->compr_ops->pointer) + platform->driver->compr_ops->pointer(cstream, tstamp); + + return 0; +} + +/* ASoC Compress operations */ +static struct snd_compr_ops soc_compr_ops = { + .open = soc_compr_open, + .free = soc_compr_free, + .set_params = soc_compr_set_params, + .get_params = soc_compr_get_params, + .trigger = soc_compr_trigger, + .pointer = soc_compr_pointer, + .ack = soc_compr_ack, + .get_caps = soc_compr_get_caps, + .get_codec_caps = soc_compr_get_codec_caps +}; + +/* create a new compress */ +int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) +{ + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_compr *compr; + char new_name[64]; + int ret = 0, direction = 0; + + /* check client and interface hw capabilities */ + snprintf(new_name, sizeof(new_name), "%s %s-%d", + rtd->dai_link->stream_name, codec_dai->name, num); + direction = SND_COMPRESS_PLAYBACK; + compr = kzalloc(sizeof(*compr), GFP_KERNEL); + if (compr == NULL) { + snd_printk(KERN_ERR "Cannot allocate compr\n"); + return -ENOMEM; + } + + compr->ops = &soc_compr_ops; + mutex_init(&compr->lock); + ret = snd_compress_new(rtd->card->snd_card, num, direction, compr); + if (ret < 0) { + pr_err("compress asoc: can't create compress for codec %s\n", + codec->name); + kfree(compr); + return ret; + } + + rtd->compr = compr; + compr->private_data = rtd; + + printk(KERN_INFO "compress asoc: %s <-> %s mapping ok\n", codec_dai->name, + cpu_dai->name); + return ret; +} |