cregit-Linux how code gets into the kernel

Release 4.7 include/linux/sudmac.h

Directory: include/linux
/*
 * Header for the SUDMAC driver
 *
 * Copyright (C) 2013 Renesas Solutions Corp.
 *
 * This is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 */
#ifndef SUDMAC_H

#define SUDMAC_H

#include <linux/dmaengine.h>
#include <linux/shdma-base.h>
#include <linux/types.h>

/* Used by slave DMA clients to request DMA to/from a specific peripheral */

struct sudmac_slave {
	
struct shdma_slave	shdma_slave;	/* Set by the platform */
};

/*
 * Supplied by platforms to specify, how a DMA channel has to be configured for
 * a certain peripheral
 */

struct sudmac_slave_config {
	
int		slave_id;
};


struct sudmac_channel {
	
unsigned long	offset;
	
unsigned long	config;
	
unsigned long	wait;		/* The configuable range is 0 to 3 */
	
unsigned long	dint_end_bit;
};


struct sudmac_pdata {
	
const struct sudmac_slave_config *slave;
	
int slave_num;
	
const struct sudmac_channel *channel;
	
int channel_num;
};

/* Definitions for the sudmac_channel.config */

#define SUDMAC_TX_BUFFER_MODE	BIT(0)

#define SUDMAC_RX_END_MODE	BIT(1)

/* Definitions for the sudmac_channel.dint_end_bit */

#define SUDMAC_DMA_BIT_CH0	BIT(0)

#define SUDMAC_DMA_BIT_CH1	BIT(1)

#endif

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Directory: include/linux
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