path: root/sound/soc/pxa/pxa-ssp.c

/*
 * pxa-ssp.c  --  ALSA Soc Audio Layer
 *
 * Copyright 2005,2008 Wolfson Microelectronics PLC.
 * Author: Liam Girdwood
 *         Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 * TODO:
 *  o Test network mode for > 16bit sample size
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/io.h>

#include <asm/irq.h>

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/initval.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/pxa2xx-lib.h>

#include <mach/hardware.h>
#include <mach/dma.h>
#include <mach/regs-ssp.h>
#include <mach/audio.h>
#include <mach/ssp.h>

#include "pxa2xx-pcm.h"
#include "pxa-ssp.h"

/*
 * SSP audio private data
 */
struct ssp_priv {
	struct ssp_dev dev;
	unsigned int sysclk;
	int dai_fmt;
#ifdef CONFIG_PM
	struct ssp_state state;
#endif
};

#define PXA2xx_SSP1_BASE	0x41000000
#define PXA27x_SSP2_BASE	0x41700000
#define PXA27x_SSP3_BASE	0x41900000
#define PXA3xx_SSP4_BASE	0x41a00000

static struct pxa2xx_pcm_dma_params pxa_ssp1_pcm_mono_out = {
	.name			= "SSP1 PCM Mono out",
	.dev_addr		= PXA2xx_SSP1_BASE + SSDR,
	.drcmr			= &DRCMR(14),
	.dcmd			= DCMD_INCSRCADDR | DCMD_FLOWTRG |
				  DCMD_BURST16 | DCMD_WIDTH2,
};

static struct pxa2xx_pcm_dma_params pxa_ssp1_pcm_mono_in = {
	.name			= "SSP1 PCM Mono in",
	.dev_addr		= PXA2xx_SSP1_BASE + SSDR,
	.drcmr			= &DRCMR(13),
	.dcmd			= DCMD_INCTRGADDR | DCMD_FLOWSRC |
				  DCMD_BURST16 | DCMD_WIDTH2,
};

static struct pxa2xx_pcm_dma_params pxa_ssp1_pcm_stereo_out = {
	.name			= "SSP1 PCM Stereo out",
	.dev_addr		= PXA2xx_SSP1_BASE + SSDR,
	.drcmr			= &DRCMR(14),
	.dcmd			= DCMD_INCSRCADDR | DCMD_FLOWTRG |
				  DCMD_BURST16 | DCMD_WIDTH4,
};

static struct pxa2xx_pcm_dma_params pxa_ssp1_pcm_stereo_in = {
	.name			= "SSP1 PCM Stereo in",
	.dev_addr		= PXA2xx_SSP1_BASE + SSDR,
	.drcmr			= &DRCMR(13),
	.dcmd			= DCMD_INCTRGADDR | DCMD_FLOWSRC |
				  DCMD_BURST16 | DCMD_WIDTH4,
};

static struct pxa2xx_pcm_dma_params pxa_ssp2_pcm_mono_out = {
	.name			= "SSP2 PCM Mono out",
	.dev_addr		= PXA27x_SSP2_BASE + SSDR,
	.drcmr			= &DRCMR(16),
	.dcmd			= DCMD_INCSRCADDR | DCMD_FLOWTRG |
				  DCMD_BURST16 | DCMD_WIDTH2,
};

static struct pxa2xx_pcm_dma_params pxa_ssp2_pcm_mono_in = {
	.name			= "SSP2 PCM Mono in",
	.dev_addr		= PXA27x_SSP2_BASE + SSDR,
	.drcmr			= &DRCMR(15),
	.dcmd			= DCMD_INCTRGADDR | DCMD_FLOWSRC |
				  DCMD_BURST16 | DCMD_WIDTH2,
};

static struct pxa2xx_pcm_dma_params pxa_ssp2_pcm_stereo_out = {
	.name			= "SSP2 PCM Stereo out",
	.dev_addr		= PXA27x_SSP2_BASE + SSDR,
	.drcmr			= &DRCMR(16),
	.dcmd			= DCMD_INCSRCADDR | DCMD_FLOWTRG |
				  DCMD_BURST16 | DCMD_WIDTH4,
};

static struct pxa2xx_pcm_dma_params pxa_ssp2_pcm_stereo_in = {
	.name			= "SSP2 PCM Stereo in",
	.dev_addr		= PXA27x_SSP2_BASE + SSDR,
	.drcmr			= &DRCMR(15),
	.dcmd			= DCMD_INCTRGADDR | DCMD_FLOWSRC |
				  DCMD_BURST16 | DCMD_WIDTH4,
};

static struct pxa2xx_pcm_dma_params pxa_ssp3_pcm_mono_out = {
	.name			= "SSP3 PCM Mono out",
	.dev_addr		= PXA27x_SSP3_BASE + SSDR,
	.drcmr			= &DRCMR(67),
	.dcmd			= DCMD_INCSRCADDR | DCMD_FLOWTRG |
				  DCMD_BURST16 | DCMD_WIDTH2,
};

static struct pxa2xx_pcm_dma_params pxa_ssp3_pcm_mono_in = {
	.name			= "SSP3 PCM Mono in",
	.dev_addr		= PXA27x_SSP3_BASE + SSDR,
	.drcmr			= &DRCMR(66),
	.dcmd			= DCMD_INCTRGADDR | DCMD_FLOWSRC |
				  DCMD_BURST16 | DCMD_WIDTH2,
};

static struct pxa2xx_pcm_dma_params pxa_ssp3_pcm_stereo_out = {
	.name			= "SSP3 PCM Stereo out",
	.dev_addr		= PXA27x_SSP3_BASE + SSDR,
	.drcmr			= &DRCMR(67),
	.dcmd			= DCMD_INCSRCADDR | DCMD_FLOWTRG |
				  DCMD_BURST16 | DCMD_WIDTH4,
};

static struct pxa2xx_pcm_dma_params pxa_ssp3_pcm_stereo_in = {
	.name			= "SSP3 PCM Stereo in",
	.dev_addr		= PXA27x_SSP3_BASE + SSDR,
	.drcmr			= &DRCMR(66),
	.dcmd			= DCMD_INCTRGADDR | DCMD_FLOWSRC |
				  DCMD_BURST16 | DCMD_WIDTH4,
};

static struct pxa2xx_pcm_dma_params pxa_ssp4_pcm_mono_out = {
	.name			= "SSP4 PCM Mono out&quo