static int
open_dchannel(struct hfcsusb *hw, struct mISDNchannel *ch,
struct channel_req *rq)
{
int err = 0;
if (debug & DEBUG_HW_OPEN)
printk(KERN_DEBUG "%s: %s: dev(%d) open addr(%i) from %p\n",
hw->name, __func__, hw->dch.dev.id, rq->adr.channel,
__builtin_return_address(0));
if (rq->protocol == ISDN_P_NONE)
return -EINVAL;
test_and_clear_bit(FLG_ACTIVE, &hw->dch.Flags);
test_and_clear_bit(FLG_ACTIVE, &hw->ech.Flags);
hfcsusb_start_endpoint(hw, HFC_CHAN_D);
if (rq->adr.channel == 1) {
if (hw->fifos[HFCUSB_PCM_RX].pipe) {
hfcsusb_start_endpoint(hw, HFC_CHAN_E);
set_bit(FLG_ACTIVE, &hw->ech.Flags);
_queue_data(&hw->ech.dev.D, PH_ACTIVATE_IND,
MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
} else
return -EINVAL;
}
if (!hw->initdone) {
hw->protocol = rq->protocol;
if (rq->protocol == ISDN_P_TE_S0) {
err = create_l1(&hw->dch, hfc_l1callback);
if (err)
return err;
}
setPortMode(hw);
ch->protocol = rq->protocol;
hw->initdone = 1;
} else {
if (rq->protocol != ch->protocol)
return -EPROTONOSUPPORT;
}
if (((ch->protocol == ISDN_P_NT_S0) && (hw->dch.state == 3)) ||
((ch->protocol == ISDN_P_TE_S0) && (hw->dch.state == 7)))
_queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY,
0, NULL, GFP_KERNEL);
rq->ch = ch;
if (!try_module_get(THIS_MODULE))
printk(KERN_WARNING "%s: %s: cannot get module\n",
hw->name, __func__);
return 0;
}
static int
setup_instance(struct w6692_hw *card)
{
int i, err;
u_long flags;
snprintf(card->name, MISDN_MAX_IDLEN - 1, "w6692.%d", w6692_cnt + 1);
write_lock_irqsave(&card_lock, flags);
list_add_tail(&card->list, &Cards);
write_unlock_irqrestore(&card_lock, flags);
card->fmask = (1 << w6692_cnt);
_set_debug(card);
spin_lock_init(&card->lock);
mISDN_initdchannel(&card->dch, MAX_DFRAME_LEN_L1, W6692_ph_bh);
card->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0);
card->dch.dev.D.send = w6692_l2l1D;
card->dch.dev.D.ctrl = w6692_dctrl;
card->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
(1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK));
card->dch.hw = card;
card->dch.dev.nrbchan = 2;
for (i = 0; i < 2; i++) {
mISDN_initbchannel(&card->bc[i].bch, MAX_DATA_MEM);
card->bc[i].bch.hw = card;
card->bc[i].bch.nr = i + 1;
card->bc[i].bch.ch.nr = i + 1;
card->bc[i].bch.ch.send = w6692_l2l1B;
card->bc[i].bch.ch.ctrl = w6692_bctrl;
set_channelmap(i + 1, card->dch.dev.channelmap);
list_add(&card->bc[i].bch.ch.list, &card->dch.dev.bchannels);
}
err = setup_w6692(card);
if (err)
goto error_setup;
err = mISDN_register_device(&card->dch.dev, &card->pdev->dev,
card->name);
if (err)
goto error_reg;
err = init_card(card);
if (err)
goto error_init;
err = create_l1(&card->dch, w6692_l1callback);
if (!err) {
w6692_cnt++;
pr_notice("W6692 %d cards installed\n", w6692_cnt);
return 0;
}
free_irq(card->irq, card);
error_init:
mISDN_unregister_device(&card->dch.dev);
error_reg:
release_region(card->addr, 256);
error_setup:
mISDN_freebchannel(&card->bc[1].bch);
mISDN_freebchannel(&card->bc[0].bch);
mISDN_freedchannel(&card->dch);
write_lock_irqsave(&card_lock, flags);
list_del(&card->list);
write_unlock_irqrestore(&card_lock, flags);
kfree(card);
return err;
}
