* Written for new CAN driver version by Pavel Pisa - OCERA team member
* email:pisa@cmp.felk.cvut.cz
* This software is released under the GPL-License.
- * Version lincan-0.2 9 Jul 2003
+ * Version lincan-0.3 17 Jun 2004
*/
#include "../include/can.h"
* message queues.
* File: src/unican.c
*/
-can_irqreturn_t unican_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
+int unican_irq_handler(int irq, struct chip_t *chip)
{
- struct chip_t *chip=(struct chip_t *)dev_id;
sCAN_CARD *chipext = (sCAN_CARD *)chip->chip_data;
struct msgobj_t *obj=chip->msgobj[0];
__u16 status;
if(!(chip->flags&CHIP_CONFIGURED)) {
CANMSG("unican_irq_handler: called for non-configured device\n");
- return CAN_IRQ_NONE;
+ return CANCHIP_IRQ_NONE;
}
if (cl2_get_status(chipext, &status) == CL2_NO_REQUEST)
- return CAN_IRQ_NONE;
+ return CANCHIP_IRQ_NONE;
cl2_clear_interrupt(chipext);
cl2_gen_interrupt(chipext);
- return CAN_IRQ_HANDLED;
+ return CANCHIP_IRQ_HANDLED;
}
return 0;
}
-#define CHIP_TYPE "unican"
-
/**
* unican_init_chip_data - Initialize chips
* @candev: Pointer to candevice/board structure
int unican_init_chip_data(struct candevice_t *candev, int chipnr)
{
struct chip_t *chip = candev->chip[chipnr];
- chip->chip_type = CHIP_TYPE;
+ chip->chip_type = "unican";
chip->chip_base_addr = 0;
chip->clock = 10000000;
chip->int_clk_reg = 0x0;
int unican_pci_request_io(struct candevice_t *candev)
{
+ unsigned long remap_addr;
+
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,4,21))
if(pci_request_region(candev->sysdevptr.pcidev, 0, "unican_pci") != 0){
CANMSG("Request of Unican PCI range failed\n");
}
#endif /*(LINUX_VERSION_CODE > KERNEL_VERSION(2,4,21))*/
+ candev->dev_base_addr=pci_resource_start(candev->sysdevptr.pcidev,0);
+ candev->io_addr=candev->dev_base_addr;
+ candev->res_addr=candev->dev_base_addr;
+
+ if ( !( remap_addr = (long) ioremap( candev->io_addr, IO_RANGE ) ) ) {
+ CANMSG("Unable to access I/O memory at: 0x%lx\n", candev->io_addr);
+ #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,4,21))
+ pci_release_region(candev->sysdevptr.pcidev, 0);
+ #else /*(LINUX_VERSION_CODE > KERNEL_VERSION(2,4,21))*/
+ pci_release_regions(candev->sysdevptr.pcidev);
+ #endif /*(LINUX_VERSION_CODE > KERNEL_VERSION(2,4,21))*/
+ return -ENODEV;
+
+ }
+ can_base_addr_fixup(candev, remap_addr);
+ DEBUGMSG("Registered IO-memory: 0x%lx - 0x%lx\n", candev->io_addr, candev->io_addr + IO_RANGE - 1);
+ DEBUGMSG("VMA: dev_base_addr: 0x%lx chip_base_addr: 0x%lx\n",
+ candev->dev_base_addr, candev->chip[0]->chip_base_addr);
+
return 0;
}
int unican_pci_release_io(struct candevice_t *candev)
{
+ iounmap((void*)candev->dev_base_addr);
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,4,21))
pci_release_region(candev->sysdevptr.pcidev, 0);
#else /*(LINUX_VERSION_CODE > KERNEL_VERSION(2,4,21))*/
printk(KERN_CRIT "Unican PCI region 0 is not MEM\n");
return -EIO;
}
- candev->dev_base_addr=pci_resource_start(pcidev,0); /*S5920*/
+ candev->dev_base_addr=pci_resource_start(pcidev,0);
candev->io_addr=candev->dev_base_addr;
candev->res_addr=candev->dev_base_addr;