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#ifndef _ASM_CRIS_SVINTO_H
#define _ASM_CRIS_SVINTO_H
#include <arch/sv_addr_ag.h>
extern unsigned int genconfig_shadow; /* defined and set in head.S */
/* dma stuff */
enum { /* Available in: */
d_eol = (1 << 0), /* flags */
d_eop = (1 << 1), /* flags & status */
d_wait = (1 << 2), /* flags */
d_int = (1 << 3), /* flags */
d_txerr = (1 << 4), /* flags */
d_stop = (1 << 4), /* status */
d_ecp = (1 << 4), /* flags & status */
d_pri = (1 << 5), /* flags & status */
d_alignerr = (1 << 6), /* status */
d_crcerr = (1 << 7) /* status */
};
/* Do remember that DMA does not go through the MMU and needs
* a real physical address, not an address virtually mapped or
* paged. Therefore the buf/next ptrs below are unsigned long instead
* of void * to give a warning if you try to put a pointer directly
* to them instead of going through virt_to_phys/phys_to_virt.
*/
typedef struct etrax_dma_descr {
unsigned short sw_len; /* 0-1 */
unsigned short ctrl; /* 2-3 */
unsigned long next; /* 4-7 */
unsigned long buf; /* 8-11 */
unsigned short hw_len; /* 12-13 */
unsigned char status; /* 14 */
unsigned char fifo_len; /* 15 */
} etrax_dma_descr;
/* Use this for constant numbers only */
#define RESET_DMA_NUM( n ) \
*R_DMA_CH##n##_CMD = IO_STATE( R_DMA_CH0_CMD, cmd, reset )
/* Use this for constant numbers or symbols,
* having two macros makes it possible to use constant expressions.
*/
#define RESET_DMA( n ) RESET_DMA_NUM( n )
/* Use this for constant numbers only */
#define WAIT_DMA_NUM( n ) \
while( (*R_DMA_CH##n##_CMD & IO_MASK( R_DMA_CH0_CMD, cmd )) != \
IO_STATE( R_DMA_CH0_CMD, cmd, hold ) )
/* Use this for constant numbers or symbols
* having two macros makes it possible to use constant expressions.
*/
#define WAIT_DMA( n ) WAIT_DMA_NUM( n )
extern void prepare_rx_descriptor(struct etrax_dma_descr *desc);
extern void flush_etrax_cache(void);
#endif