Em_Message.h
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#ifndef Em_Message_H_
#define Em_Message_H_
#include "Em_Types.h"
#ifdef __cplusplus
extern "C" {
#endif
/* -------- SRT FUNCTIONS CALLED BY HAL -------- */
static inline bool Em_Message_addByte(uint8_t b);
extern void Em_Message_dispatch(void);
static inline bool Em_Message_getByte(uint8_t* bp);
extern void Em_Message_restart(void);
static inline bool Em_Message_startRx(void);
static inline uint8_t Em_Message_startTx(void);
/* -------- HAL FUNCTIONS CALLED BY SRT -------- */
extern uint8_t Em_Hal_lock(void);
extern void Em_Hal_reset(void);
extern void Em_Hal_startSend(void);
extern void Em_Hal_unlock(uint8_t key);
extern void Em_Hal_watchOff(void);
extern void Em_Hal_watchOn(void);
/* -------- MESSAGE FORMAT -------- */
/* protocolLevel #4 */
#define Em_Message_INDSIZE 4
typedef uint8_t Em_Message_Size;
typedef uint8_t Em_Message_Kind;
/* protocolLevel #12 -- split 16-bit resId into <resId, chan> */
typedef uint8_t Em_Message_ResId;
typedef uint8_t Em_Message_Chan;
#define Em_Message_NOP 0
#define Em_Message_FETCH 1
#define Em_Message_FETCH_DONE 2
#define Em_Message_STORE 3
#define Em_Message_STORE_DONE 4
#define Em_Message_INDICATOR 5
#define Em_Message_CONNECT 6
#define Em_Message_DISCONNECT 7
#define Em_Message_ECHO 8
/* protocolLevel #3 */
/* protocolLevel #6 -- rename from BROADCAST to PAIRING */
#define Em_Message_PAIRING 9
#define Em_Message_PAIRING_DONE 10
/* protocolLevel #7 */
#define Em_Message_OFFLINE 11
/* protocolLevel #8 */
#define Em_Message_ACCEPT 12
/* protocolLevel #13 */
#define Em_Message_START 13
#define Em_Message_ACTIVE_PARAMS 14
typedef struct Em_Message_Header {
Em_Message_Size size;
Em_Message_Kind kind;
Em_Message_ResId resId;
Em_Message_Chan chan;
} Em_Message_Header;
typedef uint16_t Em_Message_protocolLevel_t;
/* protocolLevel #1 */
/* protocolLevel #10 */
/* #define Em_Message_SYS_SCHEMA_UUID 0xFF */
#define Em_Message_SYS_MCM_PROTOCOL_LEVEL 0xFE
#define Em_Message_SYS_EAP_PROTOCOL_LEVEL 0xFD
#define Em_Message_SYS_EAP_BUILD_DATE 0xFC
/* protocolLevel #2 */
#define Em_Message_SYS_FILE_INDEX_RESET 0xFB
/* protocolLevel #5 */
#define Em_Message_SYS_SCHEMA_HASH 0xFA
/* protocolLevel #7 */
#define Em_Message_SYS_RESOURCE_COUNT 0xF9
/* protocolLevel #9 */
#define Em_Message_SYS_MOBILE_RSSI 0xF8
/* protocolLevel #11 */
#define Em_Message_SYS_MCM_DISCONNECT 0xF7
/* protocolLevel #13a */
#define Em_Message_SYS_MCM_NAME 0xF5
/* -------- PRIVATE -------- */
extern void Em_Message_nextXmit(void);
extern uint8_t* Em_App_inBuf;
extern uint8_t* Em_App_outBuf;
extern Em_Message_Size Em_App_xmitSize;
extern uint8_t* _Em_Message_rxBuf;
extern uint8_t _Em_Message_rxCnt;
extern uint8_t* _Em_Message_txBuf;
extern uint8_t _Em_Message_txCnt;
static inline bool Em_Message_addByte(uint8_t b) {
if (_Em_Message_rxCnt == 0) {
if (b == 0) {
return false;
}
_Em_Message_rxCnt = b;
}
*_Em_Message_rxBuf++ = b;
if (--_Em_Message_rxCnt == 0) {
_Em_Message_rxBuf = 0;
if (_Em_Message_txBuf == 0) {
Em_Hal_watchOff();
}
return true;
}
else {
return false;
}
}
static inline bool Em_Message_getByte(uint8_t* bp) {
if (_Em_Message_txBuf == 0) {
return false;
}
if (_Em_Message_txCnt == 0) {
_Em_Message_txCnt = *_Em_Message_txBuf + 1;
}
if (--_Em_Message_txCnt > 0) {
*bp = *_Em_Message_txBuf++;
return true;
}
else {
_Em_Message_txBuf = 0;
Em_App_xmitSize = 0;
Em_Message_nextXmit();
if (_Em_Message_rxBuf == 0) {
Em_Hal_watchOff();
}
return false;
}
}
static inline bool Em_Message_startRx(void) {
if (_Em_Message_rxBuf == 0) {
_Em_Message_rxBuf = Em_App_inBuf;
if (_Em_Message_txBuf == 0) {
Em_Hal_watchOn();
}
return true;
}
else {
return false;
}
}
static inline uint8_t Em_Message_startTx(void) {
_Em_Message_txBuf = Em_App_outBuf + 1;
_Em_Message_txCnt = 0;
if (_Em_Message_rxBuf == 0) {
Em_Hal_watchOn();
}
return 0;
}
#ifdef __cplusplus
}
#endif
#endif /*Em_Message_H_*/