1
linux/sound/soc/at32/at32-ssc.h
Liam Girdwood 453ba20b28 ALSA: asoc: at32 - merge structs snd_soc_codec_dai and snd_soc_cpu_dai.
This patch series merges struct snd_soc_codec_dai and struct
snd_soc_cpu_dai into struct snd_soc_dai for AT32 platform.

Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-07-10 09:32:34 +02:00

60 lines
1.3 KiB
C

/* sound/soc/at32/at32-ssc.h
* ASoC SSC interface for Atmel AT32 SoC
*
* Copyright (C) 2008 Long Range Systems
* Geoffrey Wossum <gwossum@acm.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __SOUND_SOC_AT32_AT32_SSC_H
#define __SOUND_SOC_AT32_AT32_SSC_H __FILE__
#include <linux/types.h>
#include <linux/atmel-ssc.h>
#include "at32-pcm.h"
struct at32_ssc_state {
u32 ssc_cmr;
u32 ssc_rcmr;
u32 ssc_rfmr;
u32 ssc_tcmr;
u32 ssc_tfmr;
u32 ssc_sr;
u32 ssc_imr;
};
struct at32_ssc_info {
char *name;
struct ssc_device *ssc;
spinlock_t lock; /* lock for dir_mask */
unsigned short dir_mask; /* 0=unused, 1=playback, 2=capture */
unsigned short initialized; /* true if SSC has been initialized */
unsigned short daifmt;
unsigned short cmr_div;
unsigned short tcmr_period;
unsigned short rcmr_period;
struct at32_pcm_dma_params *dma_params[2];
struct at32_ssc_state ssc_state;
};
/* SSC divider ids */
#define AT32_SSC_CMR_DIV 0 /* MCK divider for BCLK */
#define AT32_SSC_TCMR_PERIOD 1 /* BCLK divider for transmit FS */
#define AT32_SSC_RCMR_PERIOD 2 /* BCLK divider for receive FS */
extern struct snd_soc_dai at32_ssc_dai[];
#endif /* __SOUND_SOC_AT32_AT32_SSC_H */