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#ifndef _REQ_CTX_H
#define _REQ_CTX_H
#define MAX_HDRSIZE sizeof(struct openpcd_hdr)
#define MAX_REQSIZE (64-MAX_HDRSIZE)
#define req_buf_payload(x) (x->data[x->hdr_len])
#define req_buf_hdr(x) (x->data[0])
#include <sys/types.h>
struct req_buf {
u_int16_t hdr_len;
u_int16_t tot_len;
u_int8_t data[64];
};
struct req_ctx {
u_int16_t seq; /* request sequence number */
u_int16_t flags;
volatile u_int32_t state;
struct req_buf rx;
struct req_buf tx;
};
#define RCTX_STATE_FREE 0x00
#define RCTX_STATE_UDP_RCV_BUSY 0x01
#define RCTX_STATE_UDP_RCV_DONE 0x02
#define RCTX_STATE_MAIN_PROCESSING 0x03
#define RCTX_STATE_RC632IRQ_BUSY 0x04
#define RCTX_STATE_UDP_EP2_PENDING 0x10
#define RCTX_STATE_UDP_EP2_BUSY 0x11
#define RCTX_STATE_UDP_EP3_PENDING 0x12
#define RCTX_STATE_UDP_EP3_BUSY 0x13
#define RCTX_STATE_SSC_RX_BUSY 0x20
#define RCTX_STATE_PIOIRQ_BUSY 0x80
#define NUM_REQ_CTX 8
extern struct req_ctx *req_ctx_find_get(unsigned long old_state, unsigned long new_state);
extern struct req_ctx *req_ctx_find_busy(void);
extern void req_ctx_set_state(struct req_ctx *ctx, unsigned long new_state);
extern void req_ctx_put(struct req_ctx *ctx);
extern u_int8_t req_ctx_num(struct req_ctx *ctx);
#endif /* _REQ_CTX_H */
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