1 files changed, 45 insertions, 0 deletions

diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
new file mode 100644
index 000000000000..2fd3d251d9a5
--- /dev/null
+++ b/include/sound/pxa2xx-lib.h
@@ -0,0 +1,45 @@
+#ifndef PXA2XX_LIB_H
+#define PXA2XX_LIB_H
+
+#include <linux/platform_device.h>
+#include <sound/ac97_codec.h>
+
+/* PCM */
+
+struct pxa2xx_pcm_dma_params {
+        char *name;                     /* stream identifier */
+        u32 dcmd;                       /* DMA descriptor dcmd field */
+        volatile u32 *drcmr;            /* the DMA request channel to use */
+        u32 dev_addr;                   /* device physical address for DMA */
+};
+
+extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
+                                struct snd_pcm_hw_params *params);
+extern int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream);
+extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
+extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream);
+extern int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream);
+extern void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id);
+extern int __pxa2xx_pcm_open(struct snd_pcm_substream *substream);
+extern int __pxa2xx_pcm_close(struct snd_pcm_substream *substream);
+extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,
+        struct vm_area_struct *vma);
+extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream);
+extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
+
+/* AC97 */
+
+extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
+extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
+
+extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97);
+extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97);
+extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97);
+
+extern int pxa2xx_ac97_hw_suspend(void);
+extern int pxa2xx_ac97_hw_resume(void);
+
+extern int pxa2xx_ac97_hw_probe(struct platform_device *dev);
+extern void pxa2xx_ac97_hw_remove(struct platform_device *dev);
+
+#endif