pocketcmd.h

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00001 
00040 #ifndef NET_POCKETCMD_H
00041 #define NET_POCKETCMD_H
00042 
00043 #include "pocketbus.h"
00044 #include <cfg/compiler.h>
00045 
00046 #define PKTCMD_NULL 0 
00047 
00048 #define PKTCMD_REPLY_TIMEOUT 50 
00049 
00050 typedef uint16_t pocketcmd_t; 
00051 
00055 typedef struct PocketCmdHdr
00056 {
00057     pocketcmd_t cmd; 
00058 } PocketCmdHdr;
00059 
00065 STATIC_ASSERT(sizeof(pocketcmd_t) == sizeof(uint16_t));
00066 /*\}*/
00067 
00068 /* fwd declaration */
00069 struct PocketCmdCtx;
00070 
00074 typedef struct PocketCmdMsg
00075 {
00076     struct PocketCmdCtx *cmd_ctx; 
00077     pocketcmd_t cmd;              
00078     pocketbus_len_t len;          
00079     const uint8_t *buf;           
00080 } PocketCmdMsg;
00081 
00085 typedef void (*pocketcmd_hook_t)(struct PocketCmdMsg *cmd_msg);
00086 
00090 typedef pocketcmd_hook_t (*pocketcmd_lookup_t)(pocketcmd_t cmd);
00091 
00095 typedef struct PocketCmdCtx
00096 {
00097     struct PocketBusCtx *bus_ctx; 
00098     pocketbus_addr_t addr;        
00099     pocketcmd_lookup_t search;    
00100     pocketcmd_t waiting;          
00101     ticks_t reply_timer;          
00102 } PocketCmdCtx;
00103 
00109 INLINE void pocketcmd_setAddr(struct PocketCmdCtx *ctx, pocketbus_addr_t addr)
00110 {
00111     ctx->addr = addr;
00112 }
00113 
00114 void pocketcmd_init(struct PocketCmdCtx *ctx, struct PocketBusCtx *bus_ctx, pocketbus_addr_t addr, pocketcmd_lookup_t search);
00115 void pocketcmd_poll(struct PocketCmdCtx *ctx);
00116 bool pocketcmd_send(struct PocketCmdCtx *ctx, pocketcmd_t cmd, const void *buf, size_t len, bool has_replay);
00117 void pocketcmd_replyNak(struct PocketCmdMsg *msg);
00118 void pocketcmd_replyAck(struct PocketCmdMsg *msg);
00119 
00123 INLINE bool pocketcmd_masterSend(struct PocketCmdCtx *ctx, pocketbus_addr_t addr, pocketcmd_t cmd, const void *buf, size_t len)
00124 {
00125     pocketcmd_setAddr(ctx, addr);
00126     return pocketcmd_send(ctx, cmd, buf, len, true);
00127 }
00128 
00132 INLINE bool pocketcmd_slaveReply(struct PocketCmdCtx *ctx, pocketcmd_t cmd, const void *buf, size_t len)
00133 {
00134     return pocketcmd_send(ctx, cmd, buf, len, false);
00135 }
00136 
00137 
00138 #endif /* NET_POCKETCMD_H */