LinCAN PCI cards support updated to support PCI devices reference counting.

[lincan.git] / lincan / src / finish.c

diff --git a/lincan/src/finish.c b/lincan/src/finish.c
index 752b177793ea5db26273da44094cd5d7d47a39e4..be30f84ace76c30a532f65e4395425f89ac6ef45 100644 (file)
--- a/lincan/src/finish.c
+++ b/lincan/src/finish.c
@@ -1,11 +1,36 @@
-/* finish.c - finalization of the driver operation
- * 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: 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"
@@ -32,17 +57,17 @@ void msgobj_done(struct msgobj_t *obj)
                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)
                        objects_p[obj->minor] = NULL;
                else
                        CANMSG("msgobj_done: not registered as minor\n");
        }
-       
+
        del_timer_sync(&obj->tx_timeout);
 
        if(obj->qends) {
@@ -60,12 +85,17 @@ void msgobj_done(struct msgobj_t *obj)
  * canchip_done - destroys one CAN chip representation
  * @chip: pointer to CAN chip structure
  */
-void canchip_done(struct chip_t *chip)
+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;
@@ -74,16 +104,16 @@ void canchip_done(struct chip_t *chip)
        }
 
        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);
        chip->chipspecops=NULL;
 
@@ -96,19 +126,22 @@ void canchip_done(struct chip_t *chip)
 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;
 }
@@ -121,7 +154,7 @@ void canhardware_done(struct canhardware_t *canhw)
 {
        int i;
        struct candevice_t *candev;
-       
+
        for(i=0; i<canhw->nr_boards; i++){
                if((candev=canhw->candevice[i])==NULL)
                        continue;