lincan/src/devcommon.c

   1 /* devcommon.c - common device code
   2  * Linux CAN-bus device driver.
   3  * New CAN queues by Pavel Pisa - OCERA team member
   4  * email:pisa@cmp.felk.cvut.cz
   5  * This software is released under the GPL-License.
   6  * Version lincan-0.2  9 Jul 2003
   7  */
   8
   9 #include "../include/can.h"
  10 #include "../include/can_sysdep.h"
  11 #include "../include/can_queue.h"
  12 #include "../include/main.h"
  13 #include "../include/devcommon.h"
  14
  15 void canqueue_notify_chip(struct canque_ends_t *qends, struct canque_edge_t *qedge, int what)
  16 {
  17         struct chip_t *chip=qends->endinfo.chipinfo.chip;
  18         struct msgobj_t *obj=qends->endinfo.chipinfo.msgobj;
  19
  20         DEBUGMSG("canqueue_notify_chip for edge %d and event %d\n",qedge->edge_num,what);
  21         switch(what){
  22                 /*case CANQUEUE_NOTIFY_EMPTY:*/
  23                 /*case CANQUEUE_NOTIFY_SPACE:*/
  24                 /*case CANQUEUE_NOTIFY_NOUSR:
  25                         wake_up(&qends->endinfo.chipinfo.daemonq);
  26                         break;*/
  27                 case CANQUEUE_NOTIFY_PROC:
  28                         /*wake_up(&qends->endinfo.chipinfo.daemonq);*/
  29                         chip->chipspecops->wakeup_tx(chip, obj);
  30                         break;
  31                 case CANQUEUE_NOTIFY_DEAD_WANTED:
  32                 case CANQUEUE_NOTIFY_DEAD:
  33                         if(canque_fifo_test_and_clear_fl(&qedge->fifo, READY))
  34                                 canque_edge_decref(qedge);
  35                         break;
  36                 case CANQUEUE_NOTIFY_ATTACH:
  37                         break;
  38         }
  39 }
  40
  41
  42 int canqueue_ends_init_chip(struct canque_ends_t *qends, struct chip_t *chip, struct msgobj_t *obj)
  43 {
  44         int ret;
  45         ret=canqueue_ends_init_gen(qends);
  46         if(ret<0) return ret;
  47
  48         qends->context=NULL;
  49         init_waitqueue_head(&qends->endinfo.chipinfo.daemonq);
  50         qends->endinfo.chipinfo.chip=chip;
  51         qends->endinfo.chipinfo.msgobj=obj;
  52         qends->notify=canqueue_notify_chip;
  53
  54         DEBUGMSG("canqueue_ends_init_chip\n");
  55         return 0;
  56 }
  57
  58
  59 int canqueue_ends_done_chip(struct canque_ends_t *qends)
  60 {
  61         return 0;
  62 }