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Added to return failure if filter if unsupported format

pull/14677/head
Mohammed Mubeen 2021-05-25 23:16:49 +05:30
parent 274d8aa40c
commit 064f94d0a6
1 changed files with 11 additions and 3 deletions
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14
targets/TARGET_STM/can_api.c
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@ -329,10 +329,12 @@ int can_frequency(can_t *obj, int f)
*/ */
int can_filter(can_t *obj, uint32_t id, uint32_t mask, CANFormat format, int32_t handle) int can_filter(can_t *obj, uint32_t id, uint32_t mask, CANFormat format, int32_t handle)
{ {
UNUSED(handle); // Not supported yet (seems to be a used in read function?)
FDCAN_FilterTypeDef sFilterConfig = {0}; FDCAN_FilterTypeDef sFilterConfig = {0};
if(handle != 0) { // message filter handle is not supported for STM controllers
return 0;
}
if (format == CANStandard) { if (format == CANStandard) {
sFilterConfig.IdType = FDCAN_STANDARD_ID; sFilterConfig.IdType = FDCAN_STANDARD_ID;
sFilterConfig.FilterIndex = 0; sFilterConfig.FilterIndex = 0;
@ -391,7 +393,7 @@ int can_write(can_t *obj, CAN_Message msg, int cc)
int can_read(can_t *obj, CAN_Message *msg, int handle) int can_read(can_t *obj, CAN_Message *msg, int handle)
{ {
UNUSED(handle); // Not supported yet (seems to be a handle to a filter configuration?) UNUSED(handle); // Not supported
if (HAL_FDCAN_GetRxFifoFillLevel(&obj->CanHandle, FDCAN_RX_FIFO0) == 0) { if (HAL_FDCAN_GetRxFifoFillLevel(&obj->CanHandle, FDCAN_RX_FIFO0) == 0) {
return 0; // No message arrived return 0; // No message arrived
@ -1100,6 +1102,10 @@ int can_mode(can_t *obj, CanMode mode)
int can_filter(can_t *obj, uint32_t id, uint32_t mask, CANFormat format, int32_t handle) int can_filter(can_t *obj, uint32_t id, uint32_t mask, CANFormat format, int32_t handle)
{ {
int success = 0; int success = 0;
if(handle != 0) { // message filter handle not supported yet for STM controllers
return 0;
}
// filter for CANAny format cannot be configured for STM32 // filter for CANAny format cannot be configured for STM32
if ((format == CANStandard) || (format == CANExtended)) { if ((format == CANStandard) || (format == CANExtended)) {
@ -1128,6 +1134,8 @@ int can_filter(can_t *obj, uint32_t id, uint32_t mask, CANFormat format, int32_t
{ {
success = 1; success = 1;
} }
} else if (format == CANAny) {
success = 0; // filter for CANAny is not supported by STM32, return a failure
} }
return success; return success;