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Added working functionality to the can_filter api to accept IDs for filtering in both bxCAN and FDCAN

pull/14677/head
Mohammed Mubeen 2021-06-21 08:51:10 +05:30
parent 064f94d0a6
commit 5049b518fb
1 changed files with 18 additions and 11 deletions
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29
targets/TARGET_STM/can_api.c
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@ -163,12 +163,23 @@ static void _can_init_freq_direct(can_t *obj, const can_pinmap_t *pinmap, int hz
obj->CanHandle.Init.DataSyncJumpWidth = 0x1; // Not used - only in FDCAN
obj->CanHandle.Init.DataTimeSeg1 = 0x1; // Not used - only in FDCAN
obj->CanHandle.Init.DataTimeSeg2 = 0x1; // Not used - only in FDCAN
#ifndef TARGET_STM32G4
#ifdef TARGET_STM32H7
/* Message RAM offset is only supported in STM32H7 platforms of supported FDCAN platforms */
obj->CanHandle.Init.MessageRAMOffset = 0;
/* The number of Standard and Extended ID filters are initialized to the maximum possile extent
* for STM32H7 platforms
*/
obj->CanHandle.Init.StdFiltersNbr = 128; // to be aligned with the handle parameter in can_filter
obj->CanHandle.Init.ExtFiltersNbr = 128; // to be aligned with the handle parameter in can_filter
#else
/* The number of Standard and Extended ID filters are initialized to the maximum possile extent
* for STM32G0x1, STM32G4 and STM32L5 platforms
*/
obj->CanHandle.Init.StdFiltersNbr = 28; // to be aligned with the handle parameter in can_filter
obj->CanHandle.Init.ExtFiltersNbr = 8; // to be aligned with the handle parameter in can_filter
#endif
obj->CanHandle.Init.StdFiltersNbr = 1; // to be aligned with the handle parameter in can_filter
obj->CanHandle.Init.ExtFiltersNbr = 1; // to be aligned with the handle parameter in can_filter
#ifndef TARGET_STM32G4
#ifdef TARGET_STM32H7
obj->CanHandle.Init.RxFifo0ElmtsNbr = 8;
obj->CanHandle.Init.RxFifo0ElmtSize = FDCAN_DATA_BYTES_8;
obj->CanHandle.Init.RxFifo1ElmtsNbr = 0;
@ -180,7 +191,7 @@ static void _can_init_freq_direct(can_t *obj, const can_pinmap_t *pinmap, int hz
obj->CanHandle.Init.TxFifoQueueElmtsNbr = 3;
#endif
obj->CanHandle.Init.TxFifoQueueMode = FDCAN_TX_FIFO_OPERATION;
#ifndef TARGET_STM32G4
#ifdef TARGET_STM32H7
obj->CanHandle.Init.TxElmtSize = FDCAN_DATA_BYTES_8;
#endif
can_internal_init(obj);
@ -331,20 +342,16 @@ int can_filter(can_t *obj, uint32_t id, uint32_t mask, CANFormat format, int32_t
{
FDCAN_FilterTypeDef sFilterConfig = {0};
if(handle != 0) { // message filter handle is not supported for STM controllers
return 0;
}
if (format == CANStandard) {
sFilterConfig.IdType = FDCAN_STANDARD_ID;
sFilterConfig.FilterIndex = 0;
sFilterConfig.FilterIndex = handle;
sFilterConfig.FilterType = FDCAN_FILTER_MASK;
sFilterConfig.FilterConfig = FDCAN_FILTER_TO_RXFIFO0;
sFilterConfig.FilterID1 = id;
sFilterConfig.FilterID2 = mask;
} else if (format == CANExtended) {
sFilterConfig.IdType = FDCAN_EXTENDED_ID;
sFilterConfig.FilterIndex = 0;
sFilterConfig.FilterIndex = handle;
sFilterConfig.FilterType = FDCAN_FILTER_MASK;
sFilterConfig.FilterConfig = FDCAN_FILTER_TO_RXFIFO0;
sFilterConfig.FilterID1 = id;