mISDN: Allow to set a minimum length for transparent data
If the FIFO of the card is small, many short messages are queued up to
the upper layers and the userspace. This change allows the applications
to set a minimum datalen they want from the drivers.
Create a common control function to avoid code duplication in each
driver.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c
index 0622e05..2774375 100644
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -453,7 +453,7 @@
}
bz->za[new_f2].z2 = cpu_to_le16(new_z2);
bz->f2 = new_f2; /* next buffer */
- recv_Bchannel(bch, MISDN_ID_ANY);
+ recv_Bchannel(bch, MISDN_ID_ANY, false);
}
}
@@ -599,7 +599,7 @@
ptr1 = bdata; /* start of buffer */
memcpy(ptr, ptr1, fcnt_rx); /* rest */
}
- recv_Bchannel(bch, fcnt_tx); /* bch, id */
+ recv_Bchannel(bch, fcnt_tx, false); /* bch, id, !force */
}
*z2r = cpu_to_le16(new_z2); /* new position */
}
@@ -1535,7 +1535,8 @@
switch (cq->op) {
case MISDN_CTRL_GETOP:
- cq->op = MISDN_CTRL_FILL_EMPTY;
+ ret = mISDN_ctrl_bchannel(bch, cq);
+ cq->op |= MISDN_CTRL_FILL_EMPTY;
break;
case MISDN_CTRL_FILL_EMPTY: /* fill fifo, if empty */
test_and_set_bit(FLG_FILLEMPTY, &bch->Flags);
@@ -1544,8 +1545,7 @@
"off=%d)\n", __func__, bch->nr, !!cq->p1);
break;
default:
- printk(KERN_WARNING "%s: unknown Op %x\n", __func__, cq->op);
- ret = -EINVAL;
+ ret = mISDN_ctrl_bchannel(bch, cq);
break;
}
return ret;
@@ -2116,7 +2116,7 @@
card->bch[i].nr = i + 1;
set_channelmap(i + 1, card->dch.dev.channelmap);
card->bch[i].debug = debug;
- mISDN_initbchannel(&card->bch[i], MAX_DATA_MEM);
+ mISDN_initbchannel(&card->bch[i], MAX_DATA_MEM, poll >> 1);
card->bch[i].hw = card;
card->bch[i].ch.send = hfcpci_l2l1B;
card->bch[i].ch.ctrl = hfc_bctrl;