/* main.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 0.7 6 Aug 2001
+ * Version lincan-0.2 9 Jul 2003
*/
#define EXPORT_SYMTAB
#include <linux/autoconf.h>
-#if defined (CONFIG_MODVERSIONS) && !defined (MODVERSIONS)
-#define MODVERSIONS
-#endif
#include <linux/module.h>
-#if defined (MODVERSIONS)
-#include <linux/modversions.h>
-#endif
-
#include <linux/kernel.h>
#include <linux/fs.h>
-#include <linux/wrapper.h>
#include <linux/sched.h>
+#include <linux/poll.h>
#include <linux/version.h>
#include <linux/autoconf.h>
+#include <linux/interrupt.h>
+
+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,50))
+#include <linux/wrapper.h>
+#endif
-#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,2,19))
+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,3,0))
#include <asm/spinlock.h>
#else
#include <linux/spinlock.h>
#if !defined (__GENKSYMS__)
#if (defined (MODVERSIONS) && !defined(NOVER))
#include <linux/modversions.h>
-#include "../include/main.ver"
+/*#include "../include/main.ver"*/
#endif
#endif
+/*#undef CONFIG_DEVFS_FS*/
+
+#ifdef CONFIG_DEVFS_FS
+#include <linux/devfs_fs_kernel.h>
+#include <linux/miscdevice.h>
+#endif
+
#include "../include/main.h"
#include "../include/modparms.h"
+#include "../include/devcommon.h"
#include "../include/setup.h"
#include "../include/proc.h"
#include "../include/open.h"
#include "../include/close.h"
#include "../include/read.h"
+#include "../include/select.h"
#include "../include/irq.h"
#include "../include/ioctl.h"
#include "../include/write.h"
int major=CAN_MAJOR;
MODULE_PARM(major,"1i");
int minor[MAX_TOT_CHIPS]={-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
-MODULE_PARM(minor, "1-" __MODULE_STRING(MAX_TOT_CHIPS)"i");
+/*MODULE_PARM(minor, "1-" __MODULE_STRING(MAX_TOT_CHIPS)"i");*/
+MODULE_PARM(minor, "1-" __MODULE_STRING(MAX_TOT_CHIPS_STR)"i");
int extended=0;
MODULE_PARM(extended,"1i");
int pelican=0;
int mo15mask=0;
MODULE_PARM(mo15mask, "1i");
+/* Other module attributes */
+#ifdef MODULE_SUPPORTED_DEVICE
+MODULE_SUPPORTED_DEVICE("can");
+#endif
+#ifdef MODULE_LICENSE
+MODULE_LICENSE("GPL");
+#endif
+#ifdef MODULE_DESCRIPTION
+MODULE_DESCRIPTION("Universal Linux CAN-bus device driver");
+#endif
+
/* Global structures, used to describe the installed hardware. */
struct canhardware_t canhardware;
struct canhardware_t *hardware_p=&canhardware;
-struct candevice_t *candevices_p[MAX_HW_CARDS];
struct chip_t *chips_p[MAX_TOT_CHIPS];
struct msgobj_t *objects_p[MAX_TOT_MSGOBJS];
+#ifdef CONFIG_DEVFS_FS
+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,60))
+devfs_handle_t devfs_handles[MAX_TOT_MSGOBJS];
+#endif
+#endif
/* Pointers to dynamically allocated memory are maintained in a linked list
* to ease memory deallocation.
*/
struct mem_addr *mem_head=NULL;
-#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,2,19))
+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,3,0))
struct file_operations can_fops=
{
NULL, /* llseek */
read: can_read,
write: can_write,
NULL, /* readdir */
- NULL, /* poll */
+ poll: can_poll,
ioctl: can_ioctl,
NULL, /* mmap */
open: can_open,
owner: THIS_MODULE,
read: can_read,
write: can_write,
+ poll: can_poll,
ioctl: can_ioctl,
open: can_open,
release: can_close,
int init_module(void)
{
int res=0,i=0;
+ struct candevice_t *candev;
if (parse_mod_parms())
return -EINVAL;
}
for (i=0; i<hardware_p->nr_boards; i++) {
- if (candevices_p[i]->hwspecops->request_io(candevices_p[i]->io_addr))
- goto memory_error;
+ candev=hardware_p->candevice[i];
+ if (candev->hwspecops->request_io(candev))
+ goto memory_error;
}
for (i=0; i<hardware_p->nr_boards; i++) {
- if (candevices_p[i]->hwspecops->reset(i))
+ candev=hardware_p->candevice[i];
+ if (candev->hwspecops->reset(candev))
goto reset_error;
}
+ spin_lock_init(&hardware_p->rtr_lock);
+ hardware_p->rtr_queue=NULL;
+
i=0;
while ( (chips_p[i] != NULL) && (i < MAX_TOT_CHIPS) ) {
- if (!strcmp(chips_p[i]->chip_type,"i82527")) {
- if (request_irq(chips_p[i]->chip_irq,i82527_irq_handler,SA_SHIRQ,DEVICE_NAME,chips_p[i]))
- goto interrupt_error;
- else
- DEBUGMSG("Registered interrupt %d\n",chips_p[i]->chip_irq);
- }
- if (!strcmp(chips_p[i]->chip_type,"sja1000p") ||
- !strcmp(chips_p[i]->chip_type,"sja1000")) {
- if (request_irq(chips_p[i]->chip_irq,
- chips_p[i]->chipspecops->irq_handler,SA_SHIRQ,DEVICE_NAME,chips_p[i]))
+ if (chips_p[i]->chipspecops->irq_handler) {
+ if (request_irq(chips_p[i]->chip_irq,chips_p[i]->chipspecops->irq_handler,SA_SHIRQ,DEVICE_NAME,chips_p[i]))
goto interrupt_error;
else
DEBUGMSG("Registered interrupt %d\n",chips_p[i]->chip_irq);
}
for (i=0; i<hardware_p->nr_boards; i++) {
- if (candevices_p[i]->flags & PROGRAMMABLE_IRQ)
- if (candevices_p[i]->hwspecops->program_irq(i))
+ candev=hardware_p->candevice[i];
+ if (candev->flags & PROGRAMMABLE_IRQ)
+ if (candev->hwspecops->program_irq(candev))
goto interrupt_error;
}
- spin_lock_init(&hardware_p->rtr_lock);
- hardware_p->rtr_queue=NULL;
-
#ifdef CONFIG_PROC_FS
if (can_init_procdir())
goto proc_error;
#endif
+#ifdef CONFIG_DEVFS_FS
+ {
+ char dev_name[32];
+ int dev_minor;
+ for(i=0;i<MAX_TOT_MSGOBJS;i++) {
+ if(!objects_p[i]) continue;
+ dev_minor=objects_p[i]->minor;
+ #if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,50))
+ sprintf (dev_name, "can%d", dev_minor);
+ devfs_handles[i]=devfs_register(NULL, dev_name,
+ DEVFS_FL_DEFAULT, major, dev_minor,
+ S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP,
+ &can_fops, (void*)objects_p[i]);
+ #else
+ devfs_mk_cdev(MKDEV(major, dev_minor), S_IFCHR | S_IRUGO | S_IWUGO, "can%d", dev_minor);
+ #endif
+ }
+ }
+#endif
return 0;
#ifdef CONFIG_PROC_FS
goto memory_error;
memory_error: ;
- for (i=0; i<hardware_p->nr_boards; i++)
- candevices_p[i]->hwspecops->release_io(candevices_p[i]->io_addr);
+ for (i=0; i<hardware_p->nr_boards; i++) {
+ candev=hardware_p->candevice[i];
+ candev->hwspecops->release_io(candev);
+ }
goto register_error;
register_error: ;
void cleanup_module(void)
{
int res=0,i=0;
+ struct candevice_t *candev;
#ifdef CONFIG_PROC_FS
if (can_delete_procdir())
CANMSG("Error unregistering /proc/can entry.\n");
#endif
+#ifdef CONFIG_DEVFS_FS
+ for(i=0;i<MAX_TOT_MSGOBJS;i++) {
+ #if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,50))
+ if(devfs_handles[i])
+ devfs_unregister(devfs_handles[i]);
+ #else
+ int dev_minor;
+ if(!objects_p[i]) continue;
+ dev_minor=objects_p[i]->minor;
+ if(minor>=0)
+ devfs_remove("can%d", dev_minor);
+ #endif
+ }
+#endif
+ i=0;
while ( (chips_p[i] != NULL) & (i < MAX_TOT_CHIPS) ) {
free_irq(chips_p[i]->chip_irq, chips_p[i]);
i++;
}
- for (i=0; i<hardware_p->nr_boards; i++)
- candevices_p[i]->hwspecops->release_io(candevices_p[i]->io_addr);
+ for (i=0; i<hardware_p->nr_boards; i++){
+ candev=hardware_p->candevice[i];
+ candev->hwspecops->release_io(candev);
+ }
if ( del_mem_list() )
CANMSG("Error deallocating memory\n");
projects / lincan.git / blobdiff