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/* Defines for using and allocating dma channels. */
#ifndef _ASM_ARCH_DMA_H
#define _ASM_ARCH_DMA_H
#define MAX_DMA_CHANNELS 10
/* dma0 and dma1 used for network (ethernet) */
#define NETWORK_TX_DMA_NBR 0
#define NETWORK_RX_DMA_NBR 1
/* dma2 and dma3 shared by par0, scsi0, ser2 and ata */
#define PAR0_TX_DMA_NBR 2
#define PAR0_RX_DMA_NBR 3
#define SCSI0_TX_DMA_NBR 2
#define SCSI0_RX_DMA_NBR 3
#define SER2_TX_DMA_NBR 2
#define SER2_RX_DMA_NBR 3
#define ATA_TX_DMA_NBR 2
#define ATA_RX_DMA_NBR 3
/* dma4 and dma5 shared by par1, scsi1, ser3 and extdma0 */
#define PAR1_TX_DMA_NBR 4
#define PAR1_RX_DMA_NBR 5
#define SCSI1_TX_DMA_NBR 4
#define SCSI1_RX_DMA_NBR 5
#define SER3_TX_DMA_NBR 4
#define SER3_RX_DMA_NBR 5
#define EXTDMA0_TX_DMA_NBR 4
#define EXTDMA0_RX_DMA_NBR 5
/* dma6 and dma7 shared by ser0, extdma1 and mem2mem */
#define SER0_TX_DMA_NBR 6
#define SER0_RX_DMA_NBR 7
#define EXTDMA1_TX_DMA_NBR 6
#define EXTDMA1_RX_DMA_NBR 7
#define MEM2MEM_TX_DMA_NBR 6
#define MEM2MEM_RX_DMA_NBR 7
/* dma8 and dma9 shared by ser1 and usb */
#define SER1_TX_DMA_NBR 8
#define SER1_RX_DMA_NBR 9
#define USB_TX_DMA_NBR 8
#define USB_RX_DMA_NBR 9
#endif
enum dma_owner
{
dma_eth,
dma_ser0,
dma_ser1, /* Async and sync */
dma_ser2,
dma_ser3, /* Async and sync */
dma_ata,
dma_par0,
dma_par1,
dma_ext0,
dma_ext1,
dma_int6,
dma_int7,
dma_usb,
dma_scsi0,
dma_scsi1
};
/* Masks used by cris_request_dma options: */
#define DMA_VERBOSE_ON_ERROR (1<<0)
#define DMA_PANIC_ON_ERROR ((1<<1)|DMA_VERBOSE_ON_ERROR)
int cris_request_dma(unsigned int dmanr, const char * device_id,
unsigned options, enum dma_owner owner);
void cris_free_dma(unsigned int dmanr, const char * device_id);