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Merge pull request #964 from nzmichaelh/more-const

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various: optimise RAM and flash usage
This commit is contained in:
Dominic Clifton 2015-05-29 11:13:41 +01:00
commit 55180070d6
6 changed files with 26 additions and 42 deletions
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44
src/main/io/serial_msp.c
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@ -140,12 +140,12 @@ void useRcControlsConfig(modeActivationCondition_t *modeActivationConditions, es
#define BASEFLIGHT_IDENTIFIER "BAFL";
#define FLIGHT_CONTROLLER_IDENTIFIER_LENGTH 4
static const char *flightControllerIdentifier = CLEANFLIGHT_IDENTIFIER; // 4 UPPER CASE alpha numeric characters that identify the flight controller.
static const char * const flightControllerIdentifier = CLEANFLIGHT_IDENTIFIER; // 4 UPPER CASE alpha numeric characters that identify the flight controller.
#define FLIGHT_CONTROLLER_VERSION_LENGTH 3
#define FLIGHT_CONTROLLER_VERSION_MASK 0xFFF
const char *boardIdentifier = TARGET_BOARD_IDENTIFIER;
static const char * const boardIdentifier = TARGET_BOARD_IDENTIFIER;
#define BOARD_IDENTIFIER_LENGTH 4 // 4 UPPER CASE alpha numeric characters that identify the board being used.
#define BOARD_HARDWARE_REVISION_LENGTH 2
@ -396,40 +396,24 @@ static mspPort_t mspPorts[MAX_MSP_PORT_COUNT];
static mspPort_t *currentPort;
static void serialize32(uint32_t a)
{
static uint8_t t;
t = a;
serialWrite(mspSerialPort, t);
currentPort->checksum ^= t;
t = a >> 8;
serialWrite(mspSerialPort, t);
currentPort->checksum ^= t;
t = a >> 16;
serialWrite(mspSerialPort, t);
currentPort->checksum ^= t;
t = a >> 24;
serialWrite(mspSerialPort, t);
currentPort->checksum ^= t;
}
static void serialize16(int16_t a)
{
static uint8_t t;
t = a;
serialWrite(mspSerialPort, t);
currentPort->checksum ^= t;
t = a >> 8 & 0xff;
serialWrite(mspSerialPort, t);
currentPort->checksum ^= t;
}
static void serialize8(uint8_t a)
{
serialWrite(mspSerialPort, a);
currentPort->checksum ^= a;
}
static void serialize16(uint16_t a)
{
serialize8((uint8_t)(a >> 0));
serialize8((uint8_t)(a >> 8));
}
static void serialize32(uint32_t a)
{
serialize16((uint16_t)(a >> 0));
serialize16((uint16_t)(a >> 16));
}
static uint8_t read8(void)
{
return currentPort->inBuf[currentPort->indRX++] & 0xff;