-/* sysdep_lnx.c
- * Linux CAN-bus device driver.
- * Written by Arnaud Westenberg email:arnaud@wanadoo.nl
- * Rewritten for new CAN queues by Pavel Pisa - OCERA team member
- * email:pisa@cmp.felk.cvut.cz
- * This software is released under the GPL-License.
- * Version lincan-0.3 17 Jun 2004
- */
+/**************************************************************************/
+/* File: sysdep_lnx.c - Linux system dependant support routines */
+/* */
+/* LinCAN - (Not only) Linux CAN bus driver */
+/* Copyright (C) 2002-2009 DCE FEE CTU Prague <http://dce.felk.cvut.cz> */
+/* Copyright (C) 2002-2009 Pavel Pisa <pisa@cmp.felk.cvut.cz> */
+/* Funded by OCERA and FRESCOR IST projects */
+/* Based on CAN driver code by Arnaud Westenberg <arnaud@wanadoo.nl> */
+/* */
+/* LinCAN is free software; you can redistribute it and/or modify it */
+/* under terms of the GNU General Public License as published by the */
+/* Free Software Foundation; either version 2, or (at your option) any */
+/* later version. LinCAN is distributed in the hope that it will be */
+/* useful, but WITHOUT ANY WARRANTY; without even the implied warranty */
+/* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU */
+/* General Public License for more details. You should have received a */
+/* copy of the GNU General Public License along with LinCAN; see file */
+/* COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, */
+/* Cambridge, MA 02139, USA. */
+/* */
+/* To allow use of LinCAN in the compact embedded systems firmware */
+/* and RT-executives (RTEMS for example), main authors agree with next */
+/* special exception: */
+/* */
+/* Including LinCAN header files in a file, instantiating LinCAN generics */
+/* or templates, or linking other files with LinCAN objects to produce */
+/* an application image/executable, does not by itself cause the */
+/* resulting application image/executable to be covered by */
+/* the GNU General Public License. */
+/* This exception does not however invalidate any other reasons */
+/* why the executable file might be covered by the GNU Public License. */
+/* Publication of enhanced or derived LinCAN files is required although. */
+/**************************************************************************/
#include "../include/can.h"
#include "../include/can_sysdep.h"
* components/comm/contrib directory. */
#endif
+#ifndef IRQF_SHARED
+#define IRQF_SHARED SA_SHIRQ
+#endif /*IRQF_SHARED*/
/**
* can_checked_malloc - memory allocation with registering of requested blocks
*
* The function is used in the driver initialization phase to catch possible memory
* leaks for future driver finalization or case, that driver initialization fail.
- *
+ *
* Return Value: pointer to the allocated memory or NULL in the case of fail
*/
void *can_checked_malloc(size_t size)
{
struct mem_addr *mem_new;
void *address_p;
-
+
address_p=kmalloc(size,GFP_KERNEL);
if(address_p == NULL) {
CANMSG("can_checked_malloc: out of the memory\n");
kfree(address_p);
return 0;
}
-
+
CANMSG("can_checked_free: address %p not found on the mem list\n", address_p);
-
+
kfree(address_p);
return -1;
}
kfree(mem->address);
kfree(mem);
}
-
+
return 0;
}
#endif
}
+#ifdef CAN_ENABLE_PCI_SUPPORT
+
+struct pci_dev *can_pci_get_next_untaken_device(unsigned int vendor, unsigned int device)
+{
+ struct pci_dev *pcidev = NULL;
+
+ do {
+ pcidev = can_pci_get_device(vendor, device, pcidev);
+ if(pcidev == NULL)
+ return NULL;
+ } while(can_check_dev_taken(pcidev));
+
+ return pcidev;
+}
+
+struct pci_dev *can_pci_get_next_untaken_subsyst(unsigned int vendor, unsigned int device,
+ unsigned int ss_vendor, unsigned int ss_device)
+{
+ struct pci_dev *pcidev = NULL;
+
+ do {
+ pcidev = can_pci_get_subsys(vendor, device, ss_vendor, ss_device, pcidev);
+ if(pcidev == NULL)
+ return NULL;
+ } while(can_check_dev_taken(pcidev));
+
+ return pcidev;
+}
+
+#endif /*CAN_ENABLE_PCI_SUPPORT*/
+
#ifndef CAN_WITH_RTL
/**
* The CAN driver uses this pointer to store relationship of interrupt
* to chip state structure - @struct canchip_t
* @regs: system dependent value pointing to registers stored in exception frame
- *
+ *
* File: src/setup.c
*/
-can_irqreturn_t can_default_irq_dispatch(int irq, void *dev_id, struct pt_regs *regs)
+can_irqreturn_t can_default_irq_dispatch(CAN_IRQ_HANDLER_ARGS(irq_number, dev_id))
{
int retval;
struct canchip_t *chip=(struct canchip_t *)dev_id;
- retval=chip->chipspecops->irq_handler(irq, chip);
+ retval=chip->chipspecops->irq_handler(irq_number, chip);
return CAN_IRQ_RETVAL(retval);
}
return 0;
if(chip->flags & CHIP_IRQ_CUSTOM)
return 1;
-
+
if ((chip->flags & CHIP_IRQ_VME) == 0) {
- if (request_irq(chip->chip_irq,can_default_irq_dispatch,SA_SHIRQ,DEVICE_NAME,chip))
+ if (request_irq(chip->chip_irq,can_default_irq_dispatch,IRQF_SHARED,DEVICE_NAME,chip))
return -1;
else {
DEBUGMSG("Registered interrupt %d\n",chip->chip_irq);
CANMSG("Bad irq parameter. (1 <= irq <= 255).\n");
return -EINVAL;
}
-
+
request_vmeirq(chip->chip_irq, can_default_irq_dispatch, chip);
DEBUGMSG("Registered VME interrupt vector %d\n",chip->chip_irq);
chip->flags |= CHIP_IRQ_SETUP;
if ((chip->flags & CHIP_IRQ_VME) == 0)
free_irq(chip->chip_irq, chip);
- else {
+ else {
#ifdef CAN_ENABLE_VME_SUPPORT
free_vmeirq(chip->chip_irq);
#endif
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