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- #ifndef _ASM_CRIS_SVINTO_H
- #define _ASM_CRIS_SVINTO_H
- #include "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
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