* 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-0.2 9 Jul 2003
+ * Version lincan-0.3 17 Jun 2004
*/
#include "../include/can.h"
#include "../include/can_sysdep.h"
#include "../include/main.h"
#include "../include/open.h"
-#include "../include/i82527.h"
#include "../include/setup.h"
#define __NO_VERSION__
int can_open(struct inode *inode, struct file *file)
{
struct msgobj_t *obj;
- struct chip_t *chip;
+ struct canchip_t *chip;
struct canuser_t *canuser;
struct canque_ends_t *qends;
struct canque_edge_t *edge;
+ can_spin_irqflags_t iflags;
if ( ((obj=objects_p[MINOR_NR]) == NULL) ||
((chip=objects_p[MINOR_NR]->hostchip) == NULL) ) {
canuser = (struct canuser_t *)kmalloc(sizeof(struct canuser_t), GFP_KERNEL);
if(canuser == NULL) goto no_canuser;
- canuser->file = file;
+ canuser->flags=0;
+ canuser->userinfo.fileinfo.file = file;
canuser->msgobj = obj;
canuser->magic = CAN_USER_MAGIC;
file->private_data = canuser;
canqueue_ends_init_kern(qends);
canuser->qends = qends;
+ /*required to synchronize with RT-Linux context*/
+ can_spin_lock_irqsave(&canuser_manipulation_lock, iflags);
list_add(&canuser->peers, &obj->obj_users);
+ can_spin_unlock_irqrestore(&canuser_manipulation_lock, iflags);
if(canqueue_connect_edge(edge=canque_new_edge_kern(MAX_BUF_LENGTH),
canuser->qends, obj->qends)<0) goto no_tx_qedge;