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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-21 13:24:33 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-21 13:24:33 -0800
commit7971b96d922ccaaa2b732462c8f927af4259db60 (patch)
tree192d1e47a78fffe98bdaaa59185886fd23162922 /Documentation/sound/alsa/soc/codec.txt
parentc745552a82cbf3a82adea5210212ed31ec03388d (diff)
parent842a2097007b8a01a71a701300e970502a54bbb2 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Fix EAPD to low on CZC P10T tablet computer with ALC662 ALSA: HDA: Add SKU ignore for another Thinkpad Edge 14 ALSA: hda - Fix "unused variable" compile warning ALSA: hda - Add quirk for HP Z-series workstation Revert "ALSA: HDA: Create mixers on ALC887" ASoC: PXA: Fix codec address on Zipit Z2 ASoC: PXA: Fix jack detection on Zipit Z2 ASoC: Blackfin: fix DAI/SPORT config dependency issues ASoC: Blackfin TDM: use external frame syncs ASoC: Blackfin AC97: fix build error after multi-component update ASoC: Blackfin TDM: fix missed snd_soc_dai_get_drvdata update ASoC: documentation updates ALSA: ice1712 delta - initialize SPI clock
Diffstat (limited to 'Documentation/sound/alsa/soc/codec.txt')
-rw-r--r--Documentation/sound/alsa/soc/codec.txt45
1 files changed, 21 insertions, 24 deletions
diff --git a/Documentation/sound/alsa/soc/codec.txt b/Documentation/sound/alsa/soc/codec.txt
index 37ba3a72cb76..bce23a4a7875 100644
--- a/Documentation/sound/alsa/soc/codec.txt
+++ b/Documentation/sound/alsa/soc/codec.txt
@@ -27,42 +27,38 @@ ASoC Codec driver breakdown
1 - Codec DAI and PCM configuration
-----------------------------------
-Each codec driver must have a struct snd_soc_codec_dai to define its DAI and
+Each codec driver must have a struct snd_soc_dai_driver to define its DAI and
PCM capabilities and operations. This struct is exported so that it can be
registered with the core by your machine driver.
e.g.
-struct snd_soc_codec_dai wm8731_dai = {
- .name = "WM8731",
- /* playback capabilities */
+static struct snd_soc_dai_ops wm8731_dai_ops = {
+ .prepare = wm8731_pcm_prepare,
+ .hw_params = wm8731_hw_params,
+ .shutdown = wm8731_shutdown,
+ .digital_mute = wm8731_mute,
+ .set_sysclk = wm8731_set_dai_sysclk,
+ .set_fmt = wm8731_set_dai_fmt,
+};
+
+struct snd_soc_dai_driver wm8731_dai = {
+ .name = "wm8731-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = WM8731_RATES,
.formats = WM8731_FORMATS,},
- /* capture capabilities */
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = WM8731_RATES,
.formats = WM8731_FORMATS,},
- /* pcm operations - see section 4 below */
- .ops = {
- .prepare = wm8731_pcm_prepare,
- .hw_params = wm8731_hw_params,
- .shutdown = wm8731_shutdown,
- },
- /* DAI operations - see DAI.txt */
- .dai_ops = {
- .digital_mute = wm8731_mute,
- .set_sysclk = wm8731_set_dai_sysclk,
- .set_fmt = wm8731_set_dai_fmt,
- }
+ .ops = &wm8731_dai_ops,
+ .symmetric_rates = 1,
};
-EXPORT_SYMBOL_GPL(wm8731_dai);
2 - Codec control IO
@@ -186,13 +182,14 @@ when the mute is applied or freed.
i.e.
-static int wm8974_mute(struct snd_soc_codec *codec,
- struct snd_soc_codec_dai *dai, int mute)
+static int wm8974_mute(struct snd_soc_dai *dai, int mute)
{
- u16 mute_reg = wm8974_read_reg_cache(codec, WM8974_DAC) & 0xffbf;
- if(mute)
- wm8974_write(codec, WM8974_DAC, mute_reg | 0x40);
+ struct snd_soc_codec *codec = dai->codec;
+ u16 mute_reg = snd_soc_read(codec, WM8974_DAC) & 0xffbf;
+
+ if (mute)
+ snd_soc_write(codec, WM8974_DAC, mute_reg | 0x40);
else
- wm8974_write(codec, WM8974_DAC, mute_reg);
+ snd_soc_write(codec, WM8974_DAC, mute_reg);
return 0;
}