[bbb-pru.git] / edmavar.h

/*	$OpenBSD: edmavar.h,v 1.4 2015/01/22 14:33:01 krw Exp $	*/
/*
 * Copyright (c) 2013 Sylvestre Gallon <ccna.syl@gmail.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef __EDMAVAR_H__
#define __EDMAVAR_H__

typedef	void (*edma_intr_cb_t)(void *);

/*
 *	EDMA PaRAM dma descriptors
 */
struct edma_param{
	uint32_t		opt;		/* Option */
	uint32_t		src;		/* Ch source */
	uint16_t		acnt;		/* 1st dim count */
	uint16_t		bcnt;		/* 2nd dim count */
	uint32_t		dst;		/* Chan dst addr */
	int16_t			srcbidx;	/* Src b index */
	int16_t			dstbidx;	/* Dst b index */
	uint16_t		link;		/* Link addr */
	uint16_t		bcntrld;	/* BCNT reload */
	int16_t			srccidx;	/* Source C index */
	int16_t			dstcidx;	/* Dest C index */
	uint16_t		ccnt;		/* 3rd dim count */
	uint16_t		res;		/* Reserved */
} __attribute__((__packed__));

int	edma_intr_dma_en(uint32_t, edma_intr_cb_t, void *); /* en it for chan */
int	edma_intr_dma_dis(uint32_t);		    /* disable intr for chan */
int	edma_trig_xfer_man(uint32_t);		    /* trig a dma xfer */
int	edma_trig_xfer_by_dev(uint32_t);	    /* dma xfer trig by dev */
void	edma_param_write(uint32_t, struct edma_param *);
void	edma_param_read(uint32_t, struct edma_param *);

#endif /* __EDMAVAR_H__ */
Commit	Line	Data
cf3c20ae	1	/* $OpenBSD: edmavar.h,v 1.4 2015/01/22 14:33:01 krw Exp $ */
	2	/*
	3	* Copyright (c) 2013 Sylvestre Gallon <ccna.syl@gmail.com>
	4	*
	5	* Permission to use, copy, modify, and distribute this software for any
	6	* purpose with or without fee is hereby granted, provided that the above
	7	* copyright notice and this permission notice appear in all copies.
	8	*
	9	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	10	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	11	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	12	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	13	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	14	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	15	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	16	*/
	17
	18	#ifndef __EDMAVAR_H__
	19	#define __EDMAVAR_H__
	20
	21	typedef void (edma_intr_cb_t)(void );
	22
	23	/*
	24	* EDMA PaRAM dma descriptors
	25	*/
	26	struct edma_param{
	27	uint32_t opt; /* Option */
	28	uint32_t src; /* Ch source */
	29	uint16_t acnt; /* 1st dim count */
	30	uint16_t bcnt; /* 2nd dim count */
	31	uint32_t dst; /* Chan dst addr */
	32	int16_t srcbidx; /* Src b index */
	33	int16_t dstbidx; /* Dst b index */
	34	uint16_t link; /* Link addr */
	35	uint16_t bcntrld; /* BCNT reload */
	36	int16_t srccidx; /* Source C index */
	37	int16_t dstcidx; /* Dest C index */
	38	uint16_t ccnt; /* 3rd dim count */
	39	uint16_t res; /* Reserved */
	40	} __attribute__((__packed__));
	41
	42	int edma_intr_dma_en(uint32_t, edma_intr_cb_t, void ); / en it for chan */
	43	int edma_intr_dma_dis(uint32_t); /* disable intr for chan */
	44	int edma_trig_xfer_man(uint32_t); /* trig a dma xfer */
	45	int edma_trig_xfer_by_dev(uint32_t); /* dma xfer trig by dev */
	46	void edma_param_write(uint32_t, struct edma_param *);
	47	void edma_param_read(uint32_t, struct edma_param *);
	48
	49	#endif /* __EDMAVAR_H__ */