Commit 69383235 authored by Kai Germaschewski's avatar Kai Germaschewski

ISDN: Move driver unload into the state machine

parent b13ad664
No related merge requests found
......@@ -36,6 +36,8 @@ MODULE_LICENSE("GPL");
isdn_dev *dev;
static int isdn_command(isdn_ctrl *cmd);
static void isdn_register_devfs(int);
static void isdn_unregister_devfs(int);
/* ====================================================================== */
......@@ -458,17 +460,17 @@ static char *drv_st_str[] = {
enum {
EV_DRV_STAT_RUN,
EV_DRV_STAT_STOP,
EV_DRV_STAT_UNLOAD,
EV_DRV_STAT_STAVAIL,
EV_DRV_STAT_ADDCH,
EV_DRV_STAT_CHANNEL,
};
static char *drv_ev_str[] = {
"EV_DRV_STAT_RUN",
"EV_DRV_STAT_STOP",
"EV_DRV_STAT_UNLOAD",
"EV_DRV_STAT_STAVAIL",
"EV_DRV_STAT_ADDCH",
"EV_DRV_STAT_CHANNEL",
};
#define DRV_FLAG_REJBUS 1
......@@ -620,6 +622,43 @@ drv_stat_stop(struct fsm_inst *fi, int pr, void *arg)
set_global_features();
}
static int
drv_stat_unload(struct fsm_inst *fi, int pr, void *arg)
{
struct isdn_driver *drv = fi->userdata;
isdn_ctrl *ctrl = arg;
int di = ctrl->driver;
int i;
while (drv->locks > 0) {
isdn_ctrl cmd;
cmd.driver = di;
cmd.arg = 0;
cmd.command = ISDN_CMD_UNLOCK;
isdn_command(&cmd);
drv->locks--;
}
// isdn_tty_stat_callback(i, c); FIXME?
for (i = 0; i < ISDN_MAX_CHANNELS; i++)
if (slots[i].di == di) {
slots[i].di = -1;
slots[i].ch = -1;
slots[i].usage &= ~ISDN_USAGE_DISABLED;
isdn_unregister_devfs(i);
}
dev->channels -= drv->channels;
kfree(drv->rcverr);
kfree(drv->rcvcount);
for (i = 0; i < drv->channels; i++)
skb_queue_purge(&drv->rpqueue[i]);
kfree(drv->rpqueue);
drivers[di] = NULL;
set_global_features();
isdn_info_update();
kfree(drv);
return 0;
}
static int
drv_stat_addch(struct fsm_inst *fi, int pr, void *arg)
{
......@@ -647,6 +686,7 @@ static struct fsm_node drv_fn_tbl[] = {
{ ST_DRV_LOADED, EV_DRV_STAT_RUN, drv_stat_run },
{ ST_DRV_LOADED, EV_DRV_STAT_STAVAIL, drv_stat_stavail },
{ ST_DRV_LOADED, EV_DRV_STAT_ADDCH, drv_stat_addch },
{ ST_DRV_LOADED, EV_DRV_STAT_UNLOAD, drv_stat_unload },
{ ST_DRV_RUNNING, EV_DRV_STAT_STOP, drv_stat_stop },
{ ST_DRV_RUNNING, EV_DRV_STAT_STAVAIL, drv_stat_stavail },
......@@ -746,8 +786,6 @@ static isdn_divert_if *divert_if; /* = NULL */
#define divert_if ((isdn_divert_if *) NULL)
#endif
static void isdn_register_devfs(int);
static void isdn_unregister_devfs(int);
static int isdn_wildmat(char *s, char *p);
void
......@@ -1097,7 +1135,6 @@ static int
isdn_status_callback(isdn_ctrl * c)
{
int di;
unsigned long flags;
int i;
di = c->driver;
......@@ -1109,6 +1146,8 @@ isdn_status_callback(isdn_ctrl * c)
return fsm_event(&drivers[di]->fi, EV_DRV_STAT_RUN, c);
case ISDN_STAT_STOP:
return fsm_event(&drivers[di]->fi, EV_DRV_STAT_STOP, c);
case ISDN_STAT_UNLOAD:
return fsm_event(&drivers[di]->fi, EV_DRV_STAT_UNLOAD, c);
case ISDN_STAT_ADDCH:
return fsm_event(&drivers[di]->fi, EV_DRV_STAT_ADDCH, c);
case ISDN_STAT_ICALL:
......@@ -1268,37 +1307,6 @@ isdn_status_callback(isdn_ctrl * c)
restore_flags(flags);
break;
#endif
case ISDN_STAT_UNLOAD:
while (drivers[di]->locks > 0) {
isdn_ctrl cmd;
cmd.driver = di;
cmd.arg = 0;
cmd.command = ISDN_CMD_UNLOCK;
isdn_command(&cmd);
drivers[di]->locks--;
}
save_flags(flags);
cli();
// isdn_tty_stat_callback(i, c); FIXME?
for (i = 0; i < ISDN_MAX_CHANNELS; i++)
if (slots[i].di == di) {
slots[i].di = -1;
slots[i].ch = -1;
slots[i].usage &= ~ISDN_USAGE_DISABLED;
isdn_unregister_devfs(i);
}
dev->channels -= drivers[di]->channels;
kfree(drivers[di]->rcverr);
kfree(drivers[di]->rcvcount);
for (i = 0; i < drivers[di]->channels; i++)
skb_queue_purge(&drivers[di]->rpqueue[i]);
kfree(drivers[di]->rpqueue);
kfree(drivers[di]);
drivers[di] = NULL;
isdn_info_update();
set_global_features();
restore_flags(flags);
return 0;
case ISDN_STAT_L1ERR:
break;
case CAPI_PUT_MESSAGE:
......
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