Files
OpenEPaperLink/tag_fw/comms.c
2023-01-31 22:29:10 +01:00

70 lines
1.5 KiB
C

#define __packed
#include <string.h>
#include "proto.h"
#include "asmUtil.h"
#include "printf.h"
#include "radio.h"
#include "comms.h"
#define ADDR_MODE_NONE (0)
#define ADDR_MODE_SHORT (2)
#define ADDR_MODE_LONG (3)
#define FRAME_TYPE_BEACON (0)
#define FRAME_TYPE_DATA (1)
#define FRAME_TYPE_ACK (2)
#define FRAME_TYPE_MAC_CMD (3)
static uint8_t __xdata mCommsBuf[127];
static uint8_t __xdata mSeq = 0;
uint8_t __xdata mLastLqi = 0;
int8_t __xdata mLastRSSI = 0;
uint8_t commsGetLastPacketLQI(void)
{
return mLastLqi;
}
int8_t commsGetLastPacketRSSI(void)
{
return mLastRSSI;
}
int8_t commsRxUnencrypted(void __xdata *data) {
uint8_t __xdata *dstData = (uint8_t __xdata *)data;
uint8_t __xdata *__xdata rxedBuf;
int8_t ret = COMMS_RX_ERR_INVALID_PACKET;
int8_t rxedLen = radioRxDequeuePktGet((void __xdata *__xdata) & rxedBuf, &mLastLqi, &mLastRSSI);
if (rxedLen < 0)
return COMMS_RX_ERR_NO_PACKETS;
xMemCopyShort(dstData, rxedBuf, rxedLen);
radioRxDequeuedPktRelease();
return rxedLen;
}
bool commsTxUnencrypted(const void __xdata *packetP, uint8_t len) {
const uint8_t __xdata *packet = (const uint8_t __xdata *)packetP;
if (len > COMMS_MAX_PACKET_SZ)
return false;
memset(mCommsBuf, 0, COMMS_MAX_PACKET_SZ);
xMemCopyShort(mCommsBuf + 1, packet, len);
mCommsBuf[0] = len + RADIO_PAD_LEN_BY;
return radioTx(mCommsBuf);;
}
bool commsTxNoCpy(const void __xdata *packetp) {
return radioTx(packetp);
}