1 files changed, 47 insertions, 0 deletions
diff --git a/openpcd/firmware/src/os/req_ctx.h b/openpcd/firmware/src/os/req_ctx.h
new file mode 100644
index 0000000..f57f02f
--- /dev/null
+++ b/openpcd/firmware/src/os/req_ctx.h
@@ -0,0 +1,47 @@
+#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 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 */