+/**************************************************************************/
+/* File: finish.c - finalization of the driver operations */
+/* */
+/* 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"
#include "../include/main.h"
#include "../include/finish.h"
#include "../include/setup.h"
-
-
+extern int next_minor;
+/**
+ * msgobj_done - destroys one CAN message object
+ * @obj: pointer to CAN message object structure
+ */
void msgobj_done(struct msgobj_t *obj)
{
int delayed=0;
if(obj->hostchip->msgobj[obj->object-1] == obj)
obj->hostchip->msgobj[obj->object-1]=NULL;
else
- CANMSG("msgobj_done: not registered in the chip_t\n");
+ CANMSG("msgobj_done: not registered in the canchip_t\n");
obj->hostchip=NULL;
}
-
+
if((obj->minor>=0)) {
- if(objects_p[obj->minor] == obj)
+ if(objects_p[obj->minor] == obj){
objects_p[obj->minor] = NULL;
+ if (--next_minor<0)
+ next_minor=0;
+ }
else
CANMSG("msgobj_done: not registered as minor\n");
}
-
+
del_timer_sync(&obj->tx_timeout);
if(obj->qends) {
}
-void canchip_done(struct chip_t *chip)
+/**
+ * canchip_done - destroys one CAN chip representation
+ * @chip: pointer to CAN chip structure
+ */
+void canchip_done(struct canchip_t *chip)
{
int i;
struct msgobj_t *obj;
+ if(chip->flags & CHIP_ATTACHED){
+ chip->chipspecops->release_chip(chip);
+ chip->flags &= ~CHIP_ATTACHED;
+ }
+
if((chip->hostdevice) && (chip->chip_idx>=0)) {
if(chip->hostdevice->chip[chip->chip_idx] == chip)
chip->hostdevice->chip[chip->chip_idx] = NULL;
CANMSG("canchip_done: not registered in hostdevice\n");
}
- if((chip->flags & CHIP_IRQ_SETUP) && (chip->chip_irq>=0)) {
- free_irq(chip->chip_irq, chip);
- chip->flags &= ~CHIP_IRQ_SETUP;
- }
-
+ can_chip_free_irq(chip);
+
can_synchronize_irq(chip->chip_irq);
-
+
for(i=0; i<chip->max_objects; i++){
if((obj=chip->msgobj[i])==NULL)
continue;
msgobj_done(obj);
can_checked_free(obj);
}
-
+
can_checked_free(chip->chipspecops);
+
+ if(~chip->flags & CHIP_KEEP_DATA)
+ can_checked_free(chip->chip_data);
+ chip->chip_data = NULL;
chip->chipspecops=NULL;
}
+/**
+ * candevice_done - destroys representation of one CAN device/board
+ * @candev: pointer to CAN device/board structure
+ */
void candevice_done(struct candevice_t *candev)
{
int i;
- struct chip_t *chip;
-
+ struct canchip_t *chip;
+
for(i=0; i<candev->nr_all_chips; i++){
if((chip=candev->chip[i])==NULL)
continue;
canchip_done(chip);
can_checked_free(chip);
-
+
}
if(candev->flags & CANDEV_IO_RESERVED) {
candev->hwspecops->release_io(candev);
candev->flags &= ~CANDEV_IO_RESERVED;
}
+ if(candev->hwspecops->done_hw_data != NULL)
+ candev->hwspecops->done_hw_data(candev);
+
can_checked_free(candev->hwspecops);
candev->hwspecops=NULL;
}
+/**
+ * candevice_done - destroys representation of all CAN devices/boards
+ * @canhw: pointer to the root of all CAN hardware representation
+ */
void canhardware_done(struct canhardware_t *canhw)
{
int i;
struct candevice_t *candev;
-
- for(i=0; i<canhw->nr_boards; i++){
+
+ for(i=0; i<MAX_HW_CARDS; i++){
if((candev=canhw->candevice[i])==NULL)
continue;
candevice_done(candev);