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Diffstat (limited to 'firmware/src/os/req_ctx.h')
-rw-r--r--firmware/src/os/req_ctx.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/firmware/src/os/req_ctx.h b/firmware/src/os/req_ctx.h
new file mode 100644
index 0000000..82a133f
--- /dev/null
+++ b/firmware/src/os/req_ctx.h
@@ -0,0 +1,49 @@
+#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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