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Work on now deprecated module AQH_Serial.

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This commit is contained in:
Martin Preuss
2023-02-20 23:45:39 +01:00
parent 4c942d2584
commit f9f52d786a
2 changed files with 89 additions and 5 deletions
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84
aqhome/serial.c
View File

@@ -82,15 +82,24 @@ uint8_t AQH_Serial_GetAddress(const AQH_SERIAL *sr)
int AQH_Serial_Open(AQH_SERIAL *sr)
int AQH_Serial_Open(AQH_SERIAL *sr, int rwMode)
{
int fd;
int status;
int i;
struct termios options;
int rv;
int m;
fd=open(sr->deviceName,O_RDWR | O_NOCTTY | O_NDELAY);
m=O_NOCTTY | O_NDELAY;
switch(rwMode) {
case AQH_SerialReadWriteMode_ReadOnly: m|=O_RDONLY; break;
case AQH_SerialReadWriteMode_WriteOnly: m|=O_WRONLY; break;
case AQH_SerialReadWriteMode_ReadWrite: m|=O_RDWR; break;
default: m|=O_RDONLY; break;
}
fd=open(sr->deviceName, m);
if (fd<0) {
DBG_ERROR(NULL, "Error on open(%s): %s (%d)", sr->deviceName, strerror(errno), errno);
return GWEN_ERROR_IO;
@@ -323,7 +332,7 @@ int _attnLow(AQH_SERIAL *sr)
DBG_ERROR(NULL, "Error on ioctl(%s): %s (%d)", sr->deviceName, strerror(errno), errno);
return GWEN_ERROR_IO;
}
status |= TIOCM_DTR; /* clear the DTR pin (cave: signals inverted!) */
status |= TIOCM_DTR | TIOCM_RTS; /* clear the DTR pin (cave: signals inverted!) */
rv=ioctl(sr->fd, TIOCMSET, &status);
if (rv<0) {
DBG_ERROR(NULL, "Error on ioctl(%s): %s (%d)", sr->deviceName, strerror(errno), errno);
@@ -346,7 +355,7 @@ int _attnHigh(AQH_SERIAL *sr)
return GWEN_ERROR_IO;
}
status |= TIOCM_DTR; /* Set the DTR pin */
status &= ~ TIOCM_DTR; /* clear the DTR pin (cave: signals inverted!) */
status &= ~ (TIOCM_DTR | TIOCM_RTS); /* clear the DTR pin (cave: signals inverted!) */
rv=ioctl(sr->fd, TIOCMSET, &status);
if (rv<0) {
DBG_ERROR(NULL, "Error on ioctl(%s): %s (%d)", sr->deviceName, strerror(errno), errno);
@@ -359,6 +368,22 @@ int _attnHigh(AQH_SERIAL *sr)
int _isAttnLow(AQH_SERIAL *sr)
{
int status;
int rv;
rv=ioctl(sr->fd, TIOCMGET, &status);
if (rv<0) {
DBG_ERROR(NULL, "Error on ioctl(%s): %s (%d)", sr->deviceName, strerror(errno), errno);
return GWEN_ERROR_IO;
}
//return (status & TIOCM_CTS)?1:0;
return (status & TIOCM_CTS)?1:0;
}
int _readForced(AQH_SERIAL *sr, uint8_t *buf, int len)
{
while(len>0) {
@@ -494,6 +519,11 @@ int _writeToFd(AQH_SERIAL *sr)
int remaining;
int rv;
if (_isAttnLow(sr)) {
DBG_ERROR(NULL, "ATTN is low, not sending");
usleep(100);
return 0;
}
pos=AQH_Msg_GetCurrentPos(msg);
remaining=AQH_Msg_GetRemainingBytes(msg);
if (remaining>0) {
@@ -635,6 +665,52 @@ int AQH_Serial_Loop(AQH_SERIAL *sr)
int AQH_Serial_ReadOnlyLoop(AQH_SERIAL *sr)
{
fd_set readSet;
struct timeval tv;
int rv;
tv.tv_sec=2;
tv.tv_usec=0;
FD_ZERO(&readSet);
FD_SET(sr->fd, &readSet);
rv=select(sr->fd+1, &readSet, NULL, NULL, &tv);
if (rv<0) {
if (errno!=EINTR) {
DBG_ERROR(NULL, "Error on select");
return GWEN_ERROR_IO;
}
}
else if (rv) {
if (FD_ISSET(sr->fd, &readSet)) {
rv=_readFromFd(sr);
if (rv<0) {
DBG_ERROR(NULL, "here (%d)", rv);
return rv;
}
}
}
else if (rv==0) {
/* timeout */
if (sr->currentlyReceivedMsg) {
AQH_Msg_free(sr->currentlyReceivedMsg);
sr->currentlyReceivedMsg=NULL;
rv=_discardInput(sr);
if (rv<0) {
DBG_ERROR(NULL, "here (%d)", rv);
return rv;
}
}
}
return 0;
}

10
aqhome/serial.h
View File

@@ -28,6 +28,13 @@ typedef struct AQH_SERIAL AQH_SERIAL;
typedef void (*AQH_SERIAL_PACKETRECEIVED_FN)(AQH_SERIAL *sr, AQH_MSG *msg);
enum {
AQH_SerialReadWriteMode_ReadOnly=1,
AQH_SerialReadWriteMode_WriteOnly=2,
AQH_SerialReadWriteMode_ReadWrite=3
};
AQHOME_API AQH_SERIAL *AQH_Serial_new(const char *deviceName, uint8_t addr);
AQHOME_API void AQH_Serial_free(AQH_SERIAL *sr);
@@ -35,7 +42,7 @@ AQHOME_API void AQH_Serial_free(AQH_SERIAL *sr);
AQHOME_API uint8_t AQH_Serial_GetAddress(const AQH_SERIAL *sr);
AQHOME_API int AQH_Serial_Open(AQH_SERIAL *sr);
AQHOME_API int AQH_Serial_Open(AQH_SERIAL *sr, int rwMode);
AQHOME_API void AQH_Serial_Close(AQH_SERIAL *sr);
AQHOME_API int AQH_Serial_Recv(AQH_SERIAL *sr, uint8_t *buf, int len);
@@ -45,6 +52,7 @@ AQHOME_API int AQH_Serial_SendPacket(AQH_SERIAL *sr, uint8_t destAddr, const uin
AQHOME_API int AQH_Serial_Loop(AQH_SERIAL *sr);
AQHOME_API int AQH_Serial_ReadOnlyLoop(AQH_SERIAL *sr);
AQHOME_API int AQH_Serial_AddMessageToSend(AQH_SERIAL *sr, AQH_MSG *msg);
AQHOME_API int AQH_Serial_StartWriting(AQH_SERIAL *sr, const uint8_t *ptr, uint8_t len);