return 0;
}
+/**
+ * can_check_dev_taken - checks if bus device description is already taken by driver
+ * @anydev: pointer to bus specific Linux device description
+ *
+ * Returns: Returns 1 if device is already used by LinCAN driver, 0 otherwise.
+ */
+int can_check_dev_taken(void *anydev)
+{
+ int board_nr;
+ struct candevice_t *candev;
+ void *boarddev;
+
+ for (board_nr=hardware_p->nr_boards; board_nr--; ) {
+ if((candev=hardware_p->candevice[board_nr])==NULL)
+ continue;
+ boarddev=candev->sysdevptr.anydev;
+ if(boarddev == anydev)
+ return 1;
+ }
+
+ return 0;
+}
+
/**
* register_obj_struct - registers message object into global array
if(!chip->chipspecops->irq_handler)
return 0;
- if (request_irq(chip->chip_irq,chip->chipspecops->irq_handler,SA_SHIRQ,DEVICE_NAME,chip))
- return -1;
- else {
- DEBUGMSG("Registered interrupt %d\n",chip->chip_irq);
- chip->flags |= CHIP_IRQ_SETUP;
+ if ((chip->flags & CHIP_IRQ_VME) == 0) {
+ if (request_irq(chip->chip_irq,chip->chipspecops->irq_handler,SA_SHIRQ,DEVICE_NAME,chip))
+ return -1;
+ else {
+ DEBUGMSG("Registered interrupt %d\n",chip->chip_irq);
+ chip->flags |= CHIP_IRQ_SETUP;
+ }
+ } else {
+#ifdef CAN_ENABLE_VME_SUPPORT
+ /* TODO: Move here the irq setup from
+ * unican_vme_request_io(). To do this, the VME bridge
+ * driver should be modified. */
+#endif
}
return 1;
}
void can_chip_free_irq(struct chip_t *chip)
{
if((chip->flags & CHIP_IRQ_SETUP) && (chip->chip_irq>=0)) {
- free_irq(chip->chip_irq, chip);
- chip->flags &= ~CHIP_IRQ_SETUP;
+ if ((chip->flags & CHIP_IRQ_VME) == 0)
+ free_irq(chip->chip_irq, chip);
+ else {
+#ifdef CAN_ENABLE_VME_SUPPORT
+ /* TODO: Move here the irq cleanup from
+ * unican_vme_release_io(). To do this, the VME bridge
+ * driver should be modified. */
+#endif
+ }
+ chip->flags &= ~CHIP_IRQ_SETUP;
}
}