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drivers: can: mcan: switch from tx fifo to tx queue

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Switch the Bosch M_CAN driver from TX FIFO mode to TX Queue mode in
order to avoid priority inversion of CAN frames.

Fixes: #26541

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2022-01-21 18:53:04 +01:00 • committed by Anas Nashif
commit 2bd18c6cfd
1 changed files with 2 additions and 1 deletions
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3
drivers/can/can_mcan.c
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@ -320,7 +320,8 @@ int can_mcan_init(const struct device *dev, const struct can_mcan_config *cfg,
can->txefc = (((uint32_t)msg_ram->tx_event_fifo - mrba) & CAN_MCAN_TXEFC_EFSA_MSK) |
(ARRAY_SIZE(msg_ram->tx_event_fifo) << CAN_MCAN_TXEFC_EFS_POS);
can->txbc = (((uint32_t)msg_ram->tx_buffer - mrba) & CAN_MCAN_TXBC_TBSA) |
(ARRAY_SIZE(msg_ram->tx_buffer) << CAN_MCAN_TXBC_TFQS_POS);
(ARRAY_SIZE(msg_ram->tx_buffer) << CAN_MCAN_TXBC_TFQS_POS) |
CAN_MCAN_TXBC_TFQM;
if (sizeof(msg_ram->tx_buffer[0].data) <= 24) {
can->txesc = (sizeof(msg_ram->tx_buffer[0].data) - 8) / 4;