-/* nsi.c
- * Linux CAN-bus device driver.
- * nsi_canpci.c - support for NSI CAN PCI card
- * The card support added by Eric Pennamen <pennamen@gmail.com>
- * Based on code from Arnaud Westenberg email:arnaud@wanadoo.nl
- * Ake Hedman, eurosource, akhe@eurosource.se ,
- * and 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: nsi_canpci.c - NSI CAN PCI card (2xi82527) */
+/* */
+/* 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> */
+/* Copyright (C) 2004 Eric Pennamen <pennamen@gmail.com> */
+/* Funded by OCERA and FRESCOR IST projects */
+/* Based on CAN driver code by Arnaud Westenberg <arnaud@wanadoo.nl> */
+/* and Ake Hedman, eurosource <akhe@eurosource.se> */
+/* */
+/* 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"
#include <linux/module.h>
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10))
- #define ioread32 readl
- #define iowrite32 writel
- #define ioread8 readb
- #define iowrite8 writeb
+ #define ioread32 can_readl
+ #define iowrite32 can_writel
+ #define ioread8 can_readb
+ #define iowrite8 can_writeb
#else
#endif
*/
int nsi_canpci_init_hw_data(struct candevice_t *candev)
- {
- struct pci_dev *pcidev = NULL;
+{
+ struct pci_dev *pcidev;
- /* looking for NSI CANPCI ident on the pci bus*/
- do
- {
- pcidev = pci_find_device(NSI_VENDOR_ID, NSI_CANPCI_DEVICE_ID, pcidev);
- }
- while(can_check_dev_taken(pcidev));
-
- if(pcidev == NULL)
- {
- do
- {
- pcidev = pci_find_device(NSI_VENDOR_ID, NSI_CANPCI_DEVICE_ID+1, pcidev);
- }
- while(can_check_dev_taken(pcidev));
- if(pcidev == NULL)
- {
+ /* looking for NSI CANPCI ident on the pci bus*/
+ pcidev = can_pci_get_next_untaken_device(NSI_VENDOR_ID, NSI_CANPCI_DEVICE_ID);
+ if(pcidev == NULL)
+ pcidev = can_pci_get_next_untaken_device(NSI_VENDOR_ID, NSI_CANPCI_DEVICE_ID+1);
+ if(pcidev == NULL) {
CANMSG ("Error : NSI CAN PCI device not found\n");
return -ENODEV;
}
- else
- {
- CANMSG ("NSI CANPCI OPTO device found\n");
- }
- }
- else
- {
+
CANMSG ("NSI CANPCI device found\n");
- }
-
+
/* enable it */
if (pci_enable_device (pcidev))
{
CANMSG ("Cannot enable PCI device\n");
- return -EIO;
+ goto error_io;
}
CANMSG ("NSI CANPCI device started\n");
candev->sysdevptr.pcidev = pcidev;
pci_release_region(pcidev,0);
pci_release_region(pcidev,1);
pci_release_region(pcidev,2);
- return -EIO;
+ goto error_io;
}
}
else
{
pci_release_region(pcidev,0);
pci_release_region(pcidev,1);
- return -EIO;
+ goto error_io;
}
}
else
{
pci_release_region(pcidev,0);
- return -EIO;
+ goto error_io;
}
}
else
{
- return -EIO;
+ goto error_io;
}
candev->dev_base_addr=(unsigned long)(kmalloc(sizeof(t_CardArray),GFP_ATOMIC));
if((unsigned long)candev->dev_base_addr==0)
- return -EIO;
+ goto error_io;
//PLX register
((t_CardArray*)(candev->dev_base_addr))->addr_BAR_remap[0]=ioremap(pci_resource_start(pcidev,0),pci_resource_len(pcidev,0) );
//PLX IO
//Short acces to plx register
candev->io_addr=(unsigned long)(((t_CardArray*)(candev->dev_base_addr))->addr_BAR_remap[0]);
return 0;
+
+error_io:
+ can_pci_dev_put(pcidev);
+ return -EIO;
}
+
+void nsi_canpci_done_hw_data(struct candevice_t *candev)
+{
+ struct pci_dev *pcidev = candev->sysdevptr.pcidev;
+ can_pci_dev_put(pcidev);
+}
+
+
/* The function template_init_chip_data is used to initialize the hardware
* structure containing information about the CAN chips.
* CHIP_TYPE represents the type of CAN chip. CHIP_TYPE can be "i82527" or
* on the CAN chip. You should only have to edit this function if your hardware
* uses some specific write process.
*/
-void nsi_canpci_write_register(unsigned data, unsigned long address)
+void nsi_canpci_write_register(unsigned data, can_ioptr_t address)
{
iowrite8((u8)data,(void*)address);
}
* on the CAN chip. You should only have to edit this function if your hardware
* uses some specific read process.
*/
-unsigned nsi_canpci_read_register(unsigned long address)
+unsigned nsi_canpci_read_register(can_ioptr_t address)
{
return ioread8((void*)address);
}
hwspecops->release_io = nsi_canpci_release_io;
hwspecops->reset = nsi_canpci_reset;
hwspecops->init_hw_data = nsi_canpci_init_hw_data;
+ hwspecops->done_hw_data = nsi_canpci_done_hw_data;
hwspecops->init_chip_data = nsi_canpci_init_chip_data;
hwspecops->init_obj_data = nsi_canpci_init_obj_data;
hwspecops->write_register = nsi_canpci_write_register;
projects / lincan.git / blobdiff