int zkit_can_setup(void)
{
#if defined(CONFIG_LPC17_CAN1) || defined(CONFIG_LPC17_CAN2)
struct can_dev_s *can;
int ret;
#ifdef CONFIG_LPC17_CAN1
/* Call lpc17_caninitialize() to get an instance of the CAN1 interface */
can = lpc17_caninitialize(CAN_PORT1);
if (can == NULL)
{
canerr("ERROR: Failed to get CAN1 interface\n");
return -ENODEV;
}
/* Register the CAN1 driver at "/dev/can0" */
ret = can_register("/dev/can0", can);
if (ret < 0)
{
canerr("ERROR: CAN1 register failed: %d\n", ret);
return ret;
}
#endif
#ifdef CONFIG_LPC17_CAN2
/* Call lpc17_caninitialize() to get an instance of the CAN2 interface */
can = lpc17_caninitialize(CAN_PORT2);
if (can == NULL)
{
canerr("ERROR: Failed to get CAN2 interface\n");
return -ENODEV;
}
/* Register the CAN2 driver at "/dev/can1" */
ret = can_register("/dev/can1", can);
if (ret < 0)
{
canerr("ERROR: CAN2 register failed: %d\n", ret);
return ret;
}
#endif
return OK;
#else
return -ENODEV;
#endif
}
int can_devinit(void)
{
static bool initialized = false;
struct can_dev_s *can;
int ret;
/* Check if we have already initialized */
if (!initialized)
{
/* Call lpc17_caninitialize() to get an instance of the CAN interface */
can = lpc17_caninitialize(CAN_PORT);
if (can == NULL)
{
candbg("ERROR: Failed to get CAN interface\n");
return -ENODEV;
}
/* Register the CAN driver at "/dev/can0" */
ret = can_register("/dev/can0", can);
if (ret < 0)
{
candbg("ERROR: can_register failed: %d\n", ret);
return ret;
}
/* Now we are initialized */
initialized = true;
}
return OK;
}
