[ALSA] SH7760 ASoC support
ALSA ASoC support for SH7760
This patch adds ALSA ASoC drivers for the Audio interfaces
of the SH7760 SoC:
Add driver for the SH7760 DMA engine (dmabrg)
Add AC97 driver for HAC unit(s) found on SH7760/SH7780
Add I2S driver for SSI unit(s) found on SH7760/SH7780
Add a generic SH7760-AC97 machine driver.
Hook it all up with the build system.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/soc/sh/sh7760-ac97.c b/sound/soc/sh/sh7760-ac97.c
new file mode 100644
index 0000000..5563f14
--- /dev/null
+++ b/sound/soc/sh/sh7760-ac97.c
@@ -0,0 +1,92 @@
+/*
+ * Generic AC97 sound support for SH7760
+ *
+ * (c) 2007 Manuel Lauss
+ *
+ * Licensed under the GPLv2.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <sound/driver.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <asm/io.h>
+
+#include "../codecs/ac97.h"
+
+#define IPSEL 0xFE400034
+
+/* platform specific structs can be declared here */
+extern struct snd_soc_cpu_dai sh4_hac_dai[2];
+extern struct snd_soc_platform sh7760_soc_platform;
+
+static int machine_init(struct snd_soc_codec *codec)
+{
+ snd_soc_dapm_sync_endpoints(codec);
+ return 0;
+}
+
+static struct snd_soc_dai_link sh7760_ac97_dai = {
+ .name = "AC97",
+ .stream_name = "AC97 HiFi",
+ .cpu_dai = &sh4_hac_dai[0], /* HAC0 */
+ .codec_dai = &ac97_dai,
+ .init = machine_init,
+ .ops = NULL,
+};
+
+static struct snd_soc_machine sh7760_ac97_soc_machine = {
+ .name = "SH7760 AC97",
+ .dai_link = &sh7760_ac97_dai,
+ .num_links = 1,
+};
+
+static struct snd_soc_device sh7760_ac97_snd_devdata = {
+ .machine = &sh7760_ac97_soc_machine,
+ .platform = &sh7760_soc_platform,
+ .codec_dev = &soc_codec_dev_ac97,
+};
+
+static struct platform_device *sh7760_ac97_snd_device;
+
+static int __init sh7760_ac97_init(void)
+{
+ int ret;
+ unsigned short ipsel;
+
+ /* enable both AC97 controllers in pinmux reg */
+ ipsel = ctrl_inw(IPSEL);
+ ctrl_outw(ipsel | (3 << 10), IPSEL);
+
+ ret = -ENOMEM;
+ sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!sh7760_ac97_snd_device)
+ goto out;
+
+ platform_set_drvdata(sh7760_ac97_snd_device,
+ &sh7760_ac97_snd_devdata);
+ sh7760_ac97_snd_devdata.dev = &sh7760_ac97_snd_device->dev;
+ ret = platform_device_add(sh7760_ac97_snd_device);
+
+ if (ret)
+ platform_device_put(sh7760_ac97_snd_device);
+
+out:
+ return ret;
+}
+
+static void __exit sh7760_ac97_exit(void)
+{
+ platform_device_unregister(sh7760_ac97_snd_device);
+}
+
+module_init(sh7760_ac97_init);
+module_exit(sh7760_ac97_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine");
+MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>");