SilentSensors
Modified for BG96
Fork of
mbed-dev
by 
mbed official
Diff: targets/TARGET_STM/stm_spi_api.c
- Revision:
- 187:0387e8f68319
- Parent:
- 186:707f6e361f3e
diff -r 707f6e361f3e -r 0387e8f68319 targets/TARGET_STM/stm_spi_api.c
--- a/targets/TARGET_STM/stm_spi_api.c Fri Jun 22 16:45:37 2018 +0100
+++ b/targets/TARGET_STM/stm_spi_api.c Thu Sep 06 13:40:20 2018 +0100
@@ -42,15 +42,15 @@
#include "spi_device.h"
#if DEVICE_SPI_ASYNCH
- #define SPI_INST(obj) ((SPI_TypeDef *)(obj->spi.spi))
+#define SPI_INST(obj) ((SPI_TypeDef *)(obj->spi.spi))
#else
- #define SPI_INST(obj) ((SPI_TypeDef *)(obj->spi))
+#define SPI_INST(obj) ((SPI_TypeDef *)(obj->spi))
#endif
#if DEVICE_SPI_ASYNCH
- #define SPI_S(obj) (( struct spi_s *)(&(obj->spi)))
+#define SPI_S(obj) (( struct spi_s *)(&(obj->spi)))
#else
- #define SPI_S(obj) (( struct spi_s *)(obj))
+#define SPI_S(obj) (( struct spi_s *)(obj))
#endif
#ifndef DEBUG_STDIO
@@ -176,7 +176,7 @@
if (miso != NC) {
handle->Init.Direction = SPI_DIRECTION_2LINES;
} else {
- handle->Init.Direction = SPI_DIRECTION_1LINE;
+ handle->Init.Direction = SPI_DIRECTION_1LINE;
}
handle->Init.CLKPhase = SPI_PHASE_1EDGE;
@@ -311,20 +311,22 @@
*/
extern int spi_get_clock_freq(spi_t *obj);
-static const uint16_t baudrate_prescaler_table[] = {SPI_BAUDRATEPRESCALER_2,
- SPI_BAUDRATEPRESCALER_4,
- SPI_BAUDRATEPRESCALER_8,
- SPI_BAUDRATEPRESCALER_16,
- SPI_BAUDRATEPRESCALER_32,
- SPI_BAUDRATEPRESCALER_64,
- SPI_BAUDRATEPRESCALER_128,
- SPI_BAUDRATEPRESCALER_256};
+static const uint16_t baudrate_prescaler_table[] = {SPI_BAUDRATEPRESCALER_2,
+ SPI_BAUDRATEPRESCALER_4,
+ SPI_BAUDRATEPRESCALER_8,
+ SPI_BAUDRATEPRESCALER_16,
+ SPI_BAUDRATEPRESCALER_32,
+ SPI_BAUDRATEPRESCALER_64,
+ SPI_BAUDRATEPRESCALER_128,
+ SPI_BAUDRATEPRESCALER_256
+ };
-void spi_frequency(spi_t *obj, int hz) {
+void spi_frequency(spi_t *obj, int hz)
+{
struct spi_s *spiobj = SPI_S(obj);
int spi_hz = 0;
uint8_t prescaler_rank = 0;
- uint8_t last_index = (sizeof(baudrate_prescaler_table)/sizeof(baudrate_prescaler_table[0])) - 1;
+ uint8_t last_index = (sizeof(baudrate_prescaler_table) / sizeof(baudrate_prescaler_table[0])) - 1;
SPI_HandleTypeDef *handle = &(spiobj->handle);
/* Calculate the spi clock for prescaler_rank 0: SPI_BAUDRATEPRESCALER_2 */
@@ -386,7 +388,7 @@
SPI_HandleTypeDef *handle = &(spiobj->handle);
if (handle->Init.Direction == SPI_DIRECTION_1LINE) {
- return HAL_SPI_Transmit(handle, (uint8_t*)&value, 1, TIMEOUT_1_BYTE);
+ return HAL_SPI_Transmit(handle, (uint8_t *)&value, 1, TIMEOUT_1_BYTE);
}
#if defined(LL_SPI_RX_FIFO_TH_HALF)
@@ -441,13 +443,13 @@
} else {
/* In case of 1 WIRE only, first handle TX, then Rx */
if (tx_length != 0) {
- if (HAL_OK != HAL_SPI_Transmit(handle, (uint8_t*)tx_buffer, tx_length, tx_length*TIMEOUT_1_BYTE)) {
+ if (HAL_OK != HAL_SPI_Transmit(handle, (uint8_t *)tx_buffer, tx_length, tx_length * TIMEOUT_1_BYTE)) {
/* report an error */
total = 0;
}
}
if (rx_length != 0) {
- if (HAL_OK != HAL_SPI_Receive(handle, (uint8_t*)rx_buffer, rx_length, rx_length*TIMEOUT_1_BYTE)) {
+ if (HAL_OK != HAL_SPI_Receive(handle, (uint8_t *)rx_buffer, rx_length, rx_length * TIMEOUT_1_BYTE)) {
/* report an error */
total = 0;
}
@@ -538,18 +540,18 @@
// enable the right hal transfer
int rc = 0;
- switch(transfer_type) {
+ switch (transfer_type) {
case SPI_TRANSFER_TYPE_TXRX:
- rc = HAL_SPI_TransmitReceive_IT(handle, (uint8_t*)tx, (uint8_t*)rx, words);
+ rc = HAL_SPI_TransmitReceive_IT(handle, (uint8_t *)tx, (uint8_t *)rx, words);
break;
case SPI_TRANSFER_TYPE_TX:
- rc = HAL_SPI_Transmit_IT(handle, (uint8_t*)tx, words);
+ rc = HAL_SPI_Transmit_IT(handle, (uint8_t *)tx, words);
break;
case SPI_TRANSFER_TYPE_RX:
// the receive function also "transmits" the receive buffer so in order
// to guarantee that 0xff is on the line, we explicitly memset it here
memset(rx, SPI_FILL_WORD, length);
- rc = HAL_SPI_Receive_IT(handle, (uint8_t*)rx, words);
+ rc = HAL_SPI_Receive_IT(handle, (uint8_t *)rx, words);
break;
default:
length = 0;
@@ -578,8 +580,9 @@
bool is16bit = (handle->Init.DataSize == SPI_DATASIZE_16BIT);
// don't do anything, if the buffers aren't valid
- if (!use_tx && !use_rx)
+ if (!use_tx && !use_rx) {
return;
+ }
// copy the buffers to the SPI object
obj->tx_buff.buffer = (void *) tx;
@@ -603,8 +606,8 @@
// enable the right hal transfer
if (use_tx && use_rx) {
// we cannot manage different rx / tx sizes, let's use smaller one
- size_t size = (tx_length < rx_length)? tx_length : rx_length;
- if(tx_length != rx_length) {
+ size_t size = (tx_length < rx_length) ? tx_length : rx_length;
+ if (tx_length != rx_length) {
DEBUG_PRINTF("SPI: Full duplex transfer only 1 size: %d\n", size);
obj->tx_buff.length = size;
obj->rx_buff.length = size;
@@ -627,7 +630,7 @@
if (obj->spi.handle.State == HAL_SPI_STATE_READY) {
// When HAL SPI is back to READY state, check if there was an error
int error = obj->spi.handle.ErrorCode;
- if(error != HAL_SPI_ERROR_NONE) {
+ if (error != HAL_SPI_ERROR_NONE) {
// something went wrong and the transfer has definitely completed
event = SPI_EVENT_ERROR | SPI_EVENT_INTERNAL_TRANSFER_COMPLETE;
@@ -638,10 +641,10 @@
} else {
// else we're done
event = SPI_EVENT_COMPLETE | SPI_EVENT_INTERNAL_TRANSFER_COMPLETE;
- }
- // enable the interrupt
- NVIC_DisableIRQ(obj->spi.spiIRQ);
- NVIC_ClearPendingIRQ(obj->spi.spiIRQ);
+ }
+ // enable the interrupt
+ NVIC_DisableIRQ(obj->spi.spiIRQ);
+ NVIC_ClearPendingIRQ(obj->spi.spiIRQ);
}
@@ -654,7 +657,7 @@
SPI_HandleTypeDef *handle = &(spiobj->handle);
HAL_SPI_StateTypeDef state = HAL_SPI_GetState(handle);
- switch(state) {
+ switch (state) {
case HAL_SPI_STATE_RESET:
case HAL_SPI_STATE_READY:
case HAL_SPI_STATE_ERROR: