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drivers: can: mcan: add static initializer macros for timing parameters

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Add static initializers for the Bosch M_CAN minimum/maximum CAN timing
parameter values.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2023-05-30 15:18:49 +02:00 • committed by Anas Nashif
commit 6b13900618
1 changed files with 48 additions and 0 deletions
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48
drivers/can/can_mcan.h
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@ -814,6 +814,54 @@
*/
#define CAN_MCAN_DT_INST_MRAM_DEFINE(inst, _name) CAN_MCAN_DT_MRAM_DEFINE(DT_DRV_INST(inst), _name)
/**
* @brief Bosch M_CAN specific static initializer for a minimum nominal @p can_timing struct
*/
#define CAN_MCAN_TIMING_MIN_INITIALIZER \
{ \
.sjw = 1, \
.prop_seg = 0, \
.phase_seg1 = 2, \
.phase_seg2 = 2, \
.prescaler = 1 \
}
/**
* @brief Bosch M_CAN specific static initializer for a maximum nominal @p can_timing struct
*/
#define CAN_MCAN_TIMING_MAX_INITIALIZER \
{ \
.sjw = 128, \
.prop_seg = 0, \
.phase_seg1 = 256, \
.phase_seg2 = 128, \
.prescaler = 512 \
}
/**
* @brief Bosch M_CAN specific static initializer for a minimum data phase @p can_timing struct
*/
#define CAN_MCAN_TIMING_DATA_MIN_INITIALIZER \
{ \
.sjw = 1, \
.prop_seg = 0, \
.phase_seg1 = 1, \
.phase_seg2 = 1, \
.prescaler = 1 \
}
/**
* @brief Bosch M_CAN specific static initializer for a maximum data phase @p can_timing struct
*/
#define CAN_MCAN_TIMING_DATA_MAX_INITIALIZER \
{ \
.sjw = 16, \
.prop_seg = 0, \
.phase_seg1 = 32, \
.phase_seg2 = 16, \
.prescaler = 32 \
}
/**
* @brief Equivalent to CAN_MCAN_DT_BUILD_ASSERT_MRAM_CFG(DT_DRV_INST(inst))
* @param inst DT_DRV_COMPAT instance number