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SAMA5 CAN: Don't enable some many useless error interrupts

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This commit is contained in:
Gregory Nutt 2013-11-04 11:29:16 -06:00
parent f383c5d0a4
commit 9bd23408a7
1 changed files with 28 additions and 1 deletions
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29
arch/arm/src/sama5/sam_can.c
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@ -119,6 +119,31 @@
# error Cannot realize CAN input frequency
#endif
/* Interrupts ***************************************************************/
/* If debug is enabled, then print some diagnostic info if any of these
* events occur:
*
* CAN_INT_ERRA YES Bit 16: Error Active Mode
* CAN_INT_WARN YES Bit 17: Warning Limit
* CAN_INT_ERRP NO Bit 18: Error Passive Mode
* CAN_INT_BOFF NO Bit 19: Bus Off Mode
*
* CAN_INT_SLEEP NO Bit 20: CAN Controller in Low-power Mode
* CAN_INT_WAKEUP NO Bit 21: Wake-up Interrupt
* CAN_INT_TOVF NO Bit 22: Timer Overflow
* CAN_INT_TSTP NO Bit 23: Timestamp
*
* CAN_INT_CERR YES Bit 24: Mailbox CRC Error
* CAN_INT_SERR YES Bit 25: Mailbox Stuffing Error
* CAN_INT_AERR NO Bit 26: Acknowledgment Error (uusally means no CAN bus)
* CAN_INT_FERR YES Bit 27: Form Error
*
* CAN_INT_BERR YES Bit 28: Bit Error
*/
#define CAN_DEBUG_INTS (CAN_INT_ERRA | CAN_INT_WARN | CAN_INT_CERR | \
CAN_INT_SERR | CAN_INT_FERR | CAN_INT_BERR)
/* Debug ********************************************************************/
/* Non-standard debug that may be enabled just for testing CAN */
@ -884,7 +909,9 @@ static int can_setup(FAR struct can_dev_s *dev)
/* Enable all error interrupts */
can_putreg(priv, SAM_CAN_IER_OFFSET, CAN_INT_ALLERRORS);
#ifdef CONFIG_DEBUG
can_putreg(priv, SAM_CAN_IER_OFFSET, CAN_DEBUG_INTS);
#endif
can_dumpctrlregs(priv, "After receive setup");
can_dumpmbregs(priv, NULL);