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Use SERIAL_PORT_NONE identifier to mark ports which are unavailable

This commit is contained in:
Nicholas Sherlock 2015-04-02 01:55:13 +13:00
parent 86ddf27515
commit dce873434b
2 changed files with 11 additions and 12 deletions
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21
src/main/io/serial.c
View File

@ -241,8 +241,8 @@ serialPort_t *openSerialPort(
portOptions_t options)
{
serialPortUsage_t *serialPortUsage = findSerialPortUsageByIdentifier(identifier);
if (!serialPortUsage->enabled || serialPortUsage->function != FUNCTION_NONE) {
// already in use
if (!serialPortUsage || serialPortUsage->function != FUNCTION_NONE) {
// not available / already in use
return NULL;
}
@ -323,19 +323,18 @@ void serialInit(serialConfig_t *initialSerialConfig, bool softserialEnabled)
for (index = 0; index < SERIAL_PORT_COUNT; index++) {
serialPortUsageList[index].identifier = serialPortIdentifiers[index];
serialPortUsageList[index].enabled = true;
if (!softserialEnabled) {
if (0
#ifdef USE_SOFTSERIAL1
if (serialPortUsageList[index].identifier == SERIAL_PORT_SOFTSERIAL1) {
serialPortUsageList[index].enabled = softserialEnabled;
}
|| serialPortUsageList[index].identifier == SERIAL_PORT_SOFTSERIAL1
#endif
#ifdef USE_SOFTSERIAL2
if (serialPortUsageList[index].identifier == SERIAL_PORT_SOFTSERIAL2) {
serialPortUsageList[index].enabled = softserialEnabled;
}
|| serialPortUsageList[index].identifier == SERIAL_PORT_SOFTSERIAL2
#endif
) {
serialPortUsageList[index].identifier = SERIAL_PORT_NONE;
}
}
}
}

2
src/main/io/serial.h
View File

@ -50,6 +50,7 @@ extern uint32_t baudRates[];
// serial port identifiers are now fixed, these values are used by MSP commands.
typedef enum {
SERIAL_PORT_NONE = -1,
SERIAL_PORT_USART1 = 0,
SERIAL_PORT_USART2,
SERIAL_PORT_USART3,
@ -69,7 +70,6 @@ typedef struct serialPortUsage_s {
serialPortIdentifier_e identifier;
serialPort_t *serialPort;
serialPortFunction_e function;
bool enabled;
} serialPortUsage_t;
serialPort_t *findSharedSerialPort(uint16_t functionMask, serialPortFunction_e sharedWithFunction);