summaryrefslogtreecommitdiffstats
path: root/sound/soc/pxa/imote2.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-12 11:16:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-12 11:16:27 -0700
commite349792a385ed47390d156155b1a1e19af1bf163 (patch)
treef9dc4e3e42769950230eaa58ecdd056eb27b23e8 /sound/soc/pxa/imote2.c
parent6d21491838a2a9f22843c7530b118596ee9f4d77 (diff)
parente3f86d3d3ce350144562d9bd035dc8a274fce58e (diff)
downloadtalos-op-linux-e349792a385ed47390d156155b1a1e19af1bf163.tar.gz
talos-op-linux-e349792a385ed47390d156155b1a1e19af1bf163.zip
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: (290 commits) ALSA: pcm - Update document about xrun_debug proc file ALSA: lx6464es - support standard alsa module parameters ALSA: snd_usb_caiaq: set mixername ALSA: hda - add quirk for STAC92xx (SigmaTel STAC9205) ALSA: use card device as parent for jack input-devices ALSA: sound/ps3: Correct existing and add missing annotations ALSA: sound/ps3: Restructure driver source ALSA: sound/ps3: Fix checkpatch issues ASoC: Fix lm4857 control ALSA: ctxfi - Clear PCM resources at hw_params and hw_free ALSA: ctxfi - Check the presence of SRC instance in PCM pointer callbacks ALSA: ctxfi - Add missing start check in atc_pcm_playback_start() ALSA: ctxfi - Add use_system_timer module option ALSA: usb - Add boot quirk for C-Media 6206 USB Audio ALSA: ctxfi - Fix wrong model id for UAA ALSA: ctxfi - Clean up probe routines ALSA: hda - Fix the previous tagra-8ch patch ALSA: hda - Add 7.1 support for MSI GX620 ALSA: pcm - A helper function to compose PCM stream name for debug prints ALSA: emu10k1 - Fix minimum periods for efx playback ...
Diffstat (limited to 'sound/soc/pxa/imote2.c')
-rw-r--r--sound/soc/pxa/imote2.c114
1 files changed, 114 insertions, 0 deletions
diff --git a/sound/soc/pxa/imote2.c b/sound/soc/pxa/imote2.c
new file mode 100644
index 000000000000..405587a01160
--- /dev/null
+++ b/sound/soc/pxa/imote2.c
@@ -0,0 +1,114 @@
+
+#include <linux/module.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+
+#include "../codecs/wm8940.h"
+#include "pxa2xx-i2s.h"
+#include "pxa2xx-pcm.h"
+
+static int imote2_asoc_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+ unsigned int clk = 0;
+ int ret;
+
+ switch (params_rate(params)) {
+ case 8000:
+ case 16000:
+ case 48000:
+ case 96000:
+ clk = 12288000;
+ break;
+ case 11025:
+ case 22050:
+ case 44100:
+ clk = 11289600;
+ break;
+ }
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
+ | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ /* CPU should be clock master */
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
+ | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ /* set the I2S system clock as input (unused) */
+ ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, clk,
+ SND_SOC_CLOCK_OUT);
+
+ return ret;
+}
+
+static struct snd_soc_ops imote2_asoc_ops = {
+ .hw_params = imote2_asoc_hw_params,
+};
+
+static struct snd_soc_dai_link imote2_dai = {
+ .name = "WM8940",
+ .stream_name = "WM8940",
+ .cpu_dai = &pxa_i2s_dai,
+ .codec_dai = &wm8940_dai,
+ .ops = &imote2_asoc_ops,
+};
+
+static struct snd_soc_card snd_soc_imote2 = {
+ .name = "Imote2",
+ .platform = &pxa2xx_soc_platform,
+ .dai_link = &imote2_dai,
+ .num_links = 1,
+};
+
+static struct snd_soc_device imote2_snd_devdata = {
+ .card = &snd_soc_imote2,
+ .codec_dev = &soc_codec_dev_wm8940,
+};
+
+static struct platform_device *imote2_snd_device;
+
+static int __init imote2_asoc_init(void)
+{
+ int ret;
+
+ if (!machine_is_intelmote2())
+ return -ENODEV;
+ imote2_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!imote2_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(imote2_snd_device, &imote2_snd_devdata);
+ imote2_snd_devdata.dev = &imote2_snd_device->dev;
+ ret = platform_device_add(imote2_snd_device);
+ if (ret)
+ platform_device_put(imote2_snd_device);
+
+ return ret;
+}
+module_init(imote2_asoc_init);
+
+static void __exit imote2_asoc_exit(void)
+{
+ platform_device_unregister(imote2_snd_device);
+}
+module_exit(imote2_asoc_exit);
+
+MODULE_AUTHOR("Jonathan Cameron");
+MODULE_DESCRIPTION("ALSA SoC Imote 2");
+MODULE_LICENSE("GPL");
OpenPOWER on IntegriCloud