1 /* finish.c - finalization of the driver operation
2 * Linux CAN-bus device driver.
3 * Written by Arnaud Westenberg email:arnaud@wanadoo.nl
4 * Rewritten for new CAN queues by Pavel Pisa - OCERA team member
5 * email:pisa@cmp.felk.cvut.cz
6 * This software is released under the GPL-License.
7 * Version lincan-0.3 17 Jun 2004
10 #include "../include/can.h"
11 #include "../include/can_sysdep.h"
12 #include "../include/main.h"
13 #include "../include/devcommon.h"
14 #include "../include/finish.h"
15 #include "../include/setup.h"
19 * msgobj_done - destroys one CAN message object
20 * @obj: pointer to CAN message object structure
22 void msgobj_done(struct msgobj_t *obj)
26 delayed=canqueue_ends_done_chip(obj->qends);
28 CANMSG("msgobj_done: problem with chip queue ends\n");
31 if((obj->hostchip) && (obj->object>0)) {
32 if(obj->hostchip->msgobj[obj->object-1] == obj)
33 obj->hostchip->msgobj[obj->object-1]=NULL;
35 CANMSG("msgobj_done: not registered in the chip_t\n");
40 if(objects_p[obj->minor] == obj)
41 objects_p[obj->minor] = NULL;
43 CANMSG("msgobj_done: not registered as minor\n");
46 del_timer_sync(&obj->tx_timeout);
49 /*delayed free could be required there in the future,
50 actual use patter cannot generate such situation*/
52 can_checked_free(obj->qends);
60 * canchip_done - destroys one CAN chip representation
61 * @chip: pointer to CAN chip structure
63 void canchip_done(struct chip_t *chip)
69 if((chip->hostdevice) && (chip->chip_idx>=0)) {
70 if(chip->hostdevice->chip[chip->chip_idx] == chip)
71 chip->hostdevice->chip[chip->chip_idx] = NULL;
73 CANMSG("canchip_done: not registered in hostdevice\n");
76 can_chip_free_irq(chip);
78 can_synchronize_irq(chip->chip_irq);
80 for(i=0; i<chip->max_objects; i++){
81 if((obj=chip->msgobj[i])==NULL)
84 can_checked_free(obj);
87 can_checked_free(chip->chipspecops);
88 chip->chipspecops=NULL;
93 * candevice_done - destroys representation of one CAN device/board
94 * @candev: pointer to CAN device/board structure
96 void candevice_done(struct candevice_t *candev)
101 for(i=0; i<candev->nr_all_chips; i++){
102 if((chip=candev->chip[i])==NULL)
105 can_checked_free(chip);
108 if(candev->flags & CANDEV_IO_RESERVED) {
109 candev->hwspecops->release_io(candev);
110 candev->flags &= ~CANDEV_IO_RESERVED;
112 can_checked_free(candev->hwspecops);
113 candev->hwspecops=NULL;
117 * candevice_done - destroys representation of all CAN devices/boards
118 * @canhw: pointer to the root of all CAN hardware representation
120 void canhardware_done(struct canhardware_t *canhw)
123 struct candevice_t *candev;
125 for(i=0; i<canhw->nr_boards; i++){
126 if((candev=canhw->candevice[i])==NULL)
128 candevice_done(candev);
129 can_checked_free(candev);