dma.h

linux-2.6.15.6

/*
 *  linux/include/asm-arm/imxads/dma.h
 *
 *  Copyright (C) 1997,1998 Russell King
 *
 * 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 __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H

#define MAX_DMA_ADDRESS		0xffffffff

#define MAX_DMA_CHANNELS	0

/*
 * DMA registration
 */

typedef enum {
	DMA_PRIO_HIGH = 0,
	DMA_PRIO_MEDIUM = 3,
	DMA_PRIO_LOW = 6
} imx_dma_prio;

int imx_request_dma(char *name, imx_dma_prio prio,
		    void (*irq_handler) (int, void *, struct pt_regs *),
		    void (*err_handler) (int, void *, struct pt_regs *),
		    void *data);

void imx_free_dma(int dma_ch);


#define DMA_REQ_UART3_T        2
#define DMA_REQ_UART3_R        3
#define DMA_REQ_SSI2_T         4
#define DMA_REQ_SSI2_R         5
#define DMA_REQ_CSI_STAT       6
#define DMA_REQ_CSI_R          7
#define DMA_REQ_MSHC           8
#define DMA_REQ_DSPA_DCT_DOUT  9
#define DMA_REQ_DSPA_DCT_DIN  10
#define DMA_REQ_DSPA_MAC      11
#define DMA_REQ_EXT           12
#define DMA_REQ_SDHC          13
#define DMA_REQ_SPI1_R        14
#define DMA_REQ_SPI1_T        15
#define DMA_REQ_SSI_T         16
#define DMA_REQ_SSI_R         17
#define DMA_REQ_ASP_DAC       18
#define DMA_REQ_ASP_ADC       19
#define DMA_REQ_USP_EP(x)    (20+(x))
#define DMA_REQ_SPI2_R        26
#define DMA_REQ_SPI2_T        27
#define DMA_REQ_UART2_T       28
#define DMA_REQ_UART2_R       29
#define DMA_REQ_UART1_T       30
#define DMA_REQ_UART1_R       31

#endif				/* _ASM_ARCH_DMA_H */