/* disconnect_bc
* process closing of connection associated with given AT state structure
* and B channel
*/
static void disconnect_bc(struct at_state_t *at_state,
struct cardstate *cs, struct bc_state *bcs)
{
unsigned long flags;
spin_lock_irqsave(&cs->lock, flags);
++at_state->seq_index;
/* revert to selected idle mode */
if (!cs->cidmode) {
cs->at_state.pending_commands |= PC_UMMODE;
gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE");
cs->commands_pending = 1;
}
spin_unlock_irqrestore(&cs->lock, flags);
/* invoke hardware specific handler */
cs->ops->close_bchannel(bcs);
/* notify LL */
if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) {
bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL);
gigaset_isdn_hupD(bcs);
}
}
/* disconnect
* process closing of connection associated with given AT state structure
*/
static void disconnect(struct at_state_t **at_state_p)
{
unsigned long flags;
struct bc_state *bcs = (*at_state_p)->bcs;
struct cardstate *cs = (*at_state_p)->cs;
spin_lock_irqsave(&cs->lock, flags);
++(*at_state_p)->seq_index;
/* revert to selected idle mode */
if (!cs->cidmode) {
cs->at_state.pending_commands |= PC_UMMODE;
gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE");
cs->commands_pending = 1;
}
spin_unlock_irqrestore(&cs->lock, flags);
if (bcs) {
/* B channel assigned: invoke hardware specific handler */
cs->ops->close_bchannel(bcs);
/* notify LL */
if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) {
bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL);
gigaset_isdn_hupD(bcs);
}
} else {
/* no B channel assigned: just deallocate */
spin_lock_irqsave(&cs->lock, flags);
list_del(&(*at_state_p)->list);
kfree(*at_state_p);
*at_state_p = NULL;
spin_unlock_irqrestore(&cs->lock, flags);
}
}
static void bchannel_down(struct bc_state *bcs)
{
if (bcs->chstate & CHS_B_UP) {
bcs->chstate &= ~CHS_B_UP;
gigaset_isdn_hupB(bcs);
}
if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) {
bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL);
gigaset_isdn_hupD(bcs);
}
gigaset_free_channel(bcs);
gigaset_bcs_reinit(bcs);
}