*/
#define WAKEUP_CHARS 256
-/**
+/*
* fwserial_list: list of every fw_serial created for each fw_card
* See discussion in fwserial_probe.
*/
static LIST_HEAD(fwserial_list);
static DEFINE_MUTEX(fwserial_list_mutex);
-/**
+/*
* port_table: array of tty ports allocated to each fw_card
*
* tty ports are allocated during probe when an fw_serial is first
spin_unlock_bh(&port->lock);
}
-/**
+/*
* fwtty_update_port_status - decodes & dispatches line status changes
*
* Note: in loopback, the port->lock is being held. Only use functions that
wake_up_interruptible(&port->port.delta_msr_wait);
}
-/**
+/*
* __fwtty_port_line_status - generate 'line status' for indicated port
*
* This function returns a remote 'MSR' state based on the local 'MCR' state,
return status;
}
-/**
+/*
* __fwtty_write_port_status - send the port line status to peer
*
* Note: caller must be holding the port lock.
return err;
}
-/**
+/*
* fwtty_write_port_status - same as above but locked by port lock
*/
static int fwtty_write_port_status(struct fwtty_port *port)
tty_kref_put(tty);
}
-/**
+/*
* fwtty_do_hangup - wait for ldisc to deliver all pending rx; only then hangup
*
* When the remote has finished tx, and all in-flight rx has been received and
return err;
}
-/**
+/*
* fwtty_port_handler - bus address handler for port reads/writes
- * @parameters: fw_address_callback_t as specified by firewire core interface
*
* This handler is responsible for handling inbound read/write dma from remotes.
*/
fw_send_response(card, request, rcode);
}
-/**
+/*
* fwtty_tx_complete - callback for tx dma
* @data: ignored, has no meaning for write txns
* @length: ignored, has no meaning for write txns
/* try to write as many dma transactions out as possible */
n = -EAGAIN;
- while (!tty->stopped && !tty->hw_stopped &&
+ while (!tty->flow.stopped && !tty->hw_stopped &&
!test_bit(STOP_TX, &port->flags)) {
txn = kmem_cache_alloc(fwtty_txn_cache, GFP_ATOMIC);
if (!txn) {
spin_unlock_bh(&port->lock);
}
-/**
+/*
* fwtty_port_carrier_raised: required tty_port operation
*
* This port operation is polled after a tty has been opened and is waiting for
return 0;
}
-/**
+/*
* fwtty_port_shutdown
*
* Note: the tty port core ensures this is not the console and
return (n < 0) ? 0 : n;
}
-static int fwtty_write_room(struct tty_struct *tty)
+static unsigned int fwtty_write_room(struct tty_struct *tty)
{
struct fwtty_port *port = tty->driver_data;
- int n;
+ unsigned int n;
spin_lock_bh(&port->lock);
n = dma_fifo_avail(&port->tx_fifo);
spin_unlock_bh(&port->lock);
- fwtty_dbg(port, "%d\n", n);
+ fwtty_dbg(port, "%u\n", n);
return n;
}
-static int fwtty_chars_in_buffer(struct tty_struct *tty)
+static unsigned int fwtty_chars_in_buffer(struct tty_struct *tty)
{
struct fwtty_port *port = tty->driver_data;
- int n;
+ unsigned int n;
spin_lock_bh(&port->lock);
n = dma_fifo_level(&port->tx_fifo);
spin_unlock_bh(&port->lock);
- fwtty_dbg(port, "%d\n", n);
+ fwtty_dbg(port, "%u\n", n);
return n;
}
}
}
-/**
+/*
* fwtty_break_ctl - start/stop sending breaks
*
* Signals the remote to start or stop generating simulated breaks.
return rcode;
}
-/**
+/*
* fwserial_claim_port - attempt to claim port @ index for peer
*
* Returns ptr to claimed port or error code (as ERR_PTR())
return port;
}
-/**
+/*
* fwserial_find_port - find avail port and claim for peer
*
* Returns ptr to claimed port or NULL if none avail
fwserial_release_port(port, false);
}
-/**
+/*
* fwserial_connect_peer - initiate virtual cable with peer
*
* Returns 0 if VIRT_CABLE_PLUG request was successfully sent,
return err;
}
-/**
+/*
* fwserial_close_port -
* HUP the tty (if the tty exists) and unregister the tty device.
* Only used by the unit driver upon unit removal to disconnect and
return NULL;
}
-/**
+/*
* __fwserial_peer_by_node_id - finds a peer matching the given generation + id
*
* If a matching peer could not be found for the specified generation/node id,
return 0;
}
-/**
+/*
* fwserial_remove_peer - remove a 'serial' unit device as a 'peer'
*
* Remove a 'peer' from its list of peers. This function is only
return err;
}
-/**
+/*
* fwserial_probe: bus probe function for firewire 'serial' unit devices
*
* A 'serial' unit device is created and probed as a result of:
return err;
}
-/**
+/*
* fwserial_remove: bus removal function for firewire 'serial' unit devices
*
* The corresponding 'peer' for this unit device is removed from the list of
mutex_unlock(&fwserial_list_mutex);
}
-/**
+/*
* fwserial_update: bus update function for 'firewire' serial unit devices
*
* Updates the new node_id and bus generation for this peer. Note that locking
return rcode;
}
-/**
+/*
* fwserial_mgmt_handler: bus address handler for mgmt requests
- * @parameters: fw_address_callback_t as specified by firewire core interface
*
* This handler is responsible for handling virtual cable requests from remotes
* for all cards.
projects / linux-2.6-microblaze.git / blobdiff