Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 3a9cf8ef authored by Rajeev Kumar's avatar Rajeev Kumar Committed by Mark Brown
Browse files

ASoC: Add support for synopsys i2s controller as per ASoC framework. 



This patch add support for synopsys I2S controller as per the ASoC
framework.

Signed-off-by: default avatarRajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent f4a63483

include/sound/designware_i2s.h

0 → 100644
+69 −0
Original line number Diff line number Diff line 
/*

 * Copyright (ST) 2012 Rajeev Kumar (rajeev-dlh.kumar@st.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.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

 *

 */



#ifndef __SOUND_DESIGNWARE_I2S_H

#define __SOUND_DESIGNWARE_I2S_H



#include <linux/dmaengine.h>

#include <linux/types.h>



/*

 * struct i2s_clk_config_data - represent i2s clk configuration data

 * @chan_nr: number of channel

 * @data_width: number of bits per sample (8/16/24/32 bit)

 * @sample_rate: sampling frequency (8Khz, 16Khz, 32Khz, 44Khz, 48Khz)

 */

struct i2s_clk_config_data {

	int chan_nr;

	u32 data_width;

	u32 sample_rate;

};



struct i2s_platform_data {

	#define DWC_I2S_PLAY	(1 << 0)

	#define DWC_I2S_RECORD	(1 << 1)

	unsigned int cap;

	int channel;

	u32 snd_fmts;

	u32 snd_rates;



	void *play_dma_data;

	void *capture_dma_data;

	bool (*filter)(struct dma_chan *chan, void *slave);

	int (*i2s_clk_cfg)(struct i2s_clk_config_data *config);

};



struct i2s_dma_data {

	void *data;

	dma_addr_t addr;

	u32 max_burst;

	enum dma_slave_buswidth addr_width;

	bool (*filter)(struct dma_chan *chan, void *slave);

};



/* I2S DMA registers */

#define I2S_RXDMA		0x01C0

#define I2S_TXDMA		0x01C8



#define TWO_CHANNEL_SUPPORT	2	/* up to 2.0 */

#define FOUR_CHANNEL_SUPPORT	4	/* up to 3.1 */

#define SIX_CHANNEL_SUPPORT	6	/* up to 5.1 */

#define EIGHT_CHANNEL_SUPPORT	8	/* up to 7.1 */



#endif /*  __SOUND_DESIGNWARE_I2S_H */

sound/soc/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ source "sound/soc/atmel/Kconfig" 
source "sound/soc/au1x/Kconfig"

source "sound/soc/blackfin/Kconfig"

source "sound/soc/davinci/Kconfig"

source "sound/soc/dwc/Kconfig"

source "sound/soc/ep93xx/Kconfig"

source "sound/soc/fsl/Kconfig"

source "sound/soc/jz4740/Kconfig"

sound/soc/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ obj-$(CONFIG_SND_SOC) += atmel/ 
obj-$(CONFIG_SND_SOC)	+= au1x/

obj-$(CONFIG_SND_SOC)	+= blackfin/

obj-$(CONFIG_SND_SOC)	+= davinci/

obj-$(CONFIG_SND_SOC)	+= dwc/

obj-$(CONFIG_SND_SOC)	+= ep93xx/

obj-$(CONFIG_SND_SOC)	+= fsl/

obj-$(CONFIG_SND_SOC)	+= jz4740/

sound/soc/dwc/Kconfig

0 → 100644
+8 −0
Original line number Diff line number Diff line 
config SND_DESIGNWARE_I2S

	tristate "Synopsys I2S Device Driver"

	help

	 Say Y or M if you want to add support for I2S driver for

	 Synopsys desigwnware I2S device. The device supports upto

	 maximum of 8 channels each for play and record.

sound/soc/dwc/Makefile

0 → 100644
+3 −0
Original line number Diff line number Diff line 
# SYNOPSYS Platform Support

obj-$(CONFIG_SND_DESIGNWARE_I2S) += designware_i2s.o