#include <stdbool.h>
#include <stdint.h>

Data Structures
struct	kfsw_can_info

Macros
#define	KFSW_CAN_INTERFACE_NAME_SIZE 10U

#define	KFSW_CAN_BITRATE_125K 125000U

#define	KFSW_CAN_BITRATE_250K 250000U

#define	KFSW_CAN_BITRATE_500K 500000U

#define	KFSW_CAN_BITRATE_800K 800000U

#define	KFSW_CAN_BITRATE_1M 1000000U

Functions
int	kfsw_can_open (void)

void	kfsw_can_get_info (struct kfsw_can_info *info)

bool	kfsw_can_bitrate_supported (uint32_t bitrate)

int	kfsw_can_set_bitrate (uint32_t bitrate)

Description

CSP over CAN.

The controller comes from the kfsw,csp-can chosen node, on a board or through SocketCAN on a host.

Macro Documentation

◆ KFSW_CAN_BITRATE_125K

#define KFSW_CAN_BITRATE_125K 125000U

Bitrates an operator may select.

Anything else is refused.

◆ KFSW_CAN_INTERFACE_NAME_SIZE

#define KFSW_CAN_INTERFACE_NAME_SIZE 10U

Longest interface name libcsp's text parser accepts, plus a terminator.

Function Documentation

◆ kfsw_can_bitrate_supported()

bool kfsw_can_bitrate_supported ( uint32_t bitrate )

Check whether a bitrate is supported.

Exposed so a parameter validator can reject a bitrate before the controller is opened.

◆ kfsw_can_get_info()

void kfsw_can_get_info ( struct kfsw_can_info * info )

Read the CAN configuration and interface state.

◆ kfsw_can_open()

int kfsw_can_open ( void )

Open the chosen CAN controller and register it with libcsp.

Called by the CSP lifecycle after the router exists and before it starts. Returns 0 on success, a negative errno if the controller is missing or refuses the configured bitrate.

◆ kfsw_can_set_bitrate()

int kfsw_can_set_bitrate ( uint32_t bitrate )

Apply a new bitrate, restarting the controller.

This function only reports whether the controller accepted the change.

Returns 0 on success, -EINVAL for an unsupported bitrate, -ENODEV when no controller is open.

Data Structures

Macros

Functions