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STM32: Remove IAR compilation warning

pull/5427/head
bcostm 2017-10-18 10:07:06 +02:00 committed by Martin Kojtal
parent cbb1f98299
commit 53acf471b6
1 changed files with 16 additions and 8 deletions
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24
targets/TARGET_STM/i2c_api.c
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@ -743,8 +743,10 @@ int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) {
int count = I2C_ERROR_BUS_BUSY, ret = 0; int count = I2C_ERROR_BUS_BUSY, ret = 0;
uint32_t timeout = 0; uint32_t timeout = 0;
if ((obj_s->XferOperation == I2C_FIRST_AND_LAST_FRAME) || // Trick to remove compiler warning "left and right operands are identical" in some cases
(obj_s->XferOperation == I2C_LAST_FRAME)) { uint32_t op1 = I2C_FIRST_AND_LAST_FRAME;
uint32_t op2 = I2C_LAST_FRAME;
if ((obj_s->XferOperation == op1) || (obj_s->XferOperation == op2)) {
if (stop) if (stop)
obj_s->XferOperation = I2C_FIRST_AND_LAST_FRAME; obj_s->XferOperation = I2C_FIRST_AND_LAST_FRAME;
else else
@ -795,8 +797,10 @@ int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop) {
int count = I2C_ERROR_BUS_BUSY, ret = 0; int count = I2C_ERROR_BUS_BUSY, ret = 0;
uint32_t timeout = 0; uint32_t timeout = 0;
if ((obj_s->XferOperation == I2C_FIRST_AND_LAST_FRAME) || // Trick to remove compiler warning "left and right operands are identical" in some cases
(obj_s->XferOperation == I2C_LAST_FRAME)) { uint32_t op1 = I2C_FIRST_AND_LAST_FRAME;
uint32_t op2 = I2C_LAST_FRAME;
if ((obj_s->XferOperation == op1) || (obj_s->XferOperation == op2)) {
if (stop) if (stop)
obj_s->XferOperation = I2C_FIRST_AND_LAST_FRAME; obj_s->XferOperation = I2C_FIRST_AND_LAST_FRAME;
else else
@ -1083,8 +1087,10 @@ void i2c_transfer_asynch(i2c_t *obj, const void *tx, size_t tx_length, void *rx,
/* Set operation step depending if stop sending required or not */ /* Set operation step depending if stop sending required or not */
if ((tx_length && !rx_length) || (!tx_length && rx_length)) { if ((tx_length && !rx_length) || (!tx_length && rx_length)) {
if ((obj_s->XferOperation == I2C_FIRST_AND_LAST_FRAME) || // Trick to remove compiler warning "left and right operands are identical" in some cases
(obj_s->XferOperation == I2C_LAST_FRAME)) { uint32_t op1 = I2C_FIRST_AND_LAST_FRAME;
uint32_t op2 = I2C_LAST_FRAME;
if ((obj_s->XferOperation == op1) || (obj_s->XferOperation == op2)) {
if (stop) if (stop)
obj_s->XferOperation = I2C_FIRST_AND_LAST_FRAME; obj_s->XferOperation = I2C_FIRST_AND_LAST_FRAME;
else else
@ -1106,8 +1112,10 @@ void i2c_transfer_asynch(i2c_t *obj, const void *tx, size_t tx_length, void *rx,
} }
else if (tx_length && rx_length) { else if (tx_length && rx_length) {
/* Two steps operation, don't modify XferOperation, keep it for next step */ /* Two steps operation, don't modify XferOperation, keep it for next step */
if ((obj_s->XferOperation == I2C_FIRST_AND_LAST_FRAME) || // Trick to remove compiler warning "left and right operands are identical" in some cases
(obj_s->XferOperation == I2C_LAST_FRAME)) { uint32_t op1 = I2C_FIRST_AND_LAST_FRAME;
uint32_t op2 = I2C_LAST_FRAME;
if ((obj_s->XferOperation == op1) || (obj_s->XferOperation == op2)) {
HAL_I2C_Master_Sequential_Transmit_IT(handle, address, (uint8_t*)tx, tx_length, I2C_FIRST_FRAME); HAL_I2C_Master_Sequential_Transmit_IT(handle, address, (uint8_t*)tx, tx_length, I2C_FIRST_FRAME);
} else if ((obj_s->XferOperation == I2C_FIRST_FRAME) || } else if ((obj_s->XferOperation == I2C_FIRST_FRAME) ||
(obj_s->XferOperation == I2C_NEXT_FRAME)) { (obj_s->XferOperation == I2C_NEXT_FRAME)) {