static void pl2303_release(struct usb_serial *serial)
{
struct pl2303_serial_private *spriv;
spriv = usb_get_serial_data(serial);
kfree(spriv);
}
static int opticon_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
struct opticon_private *priv = usb_get_serial_data(port->serial);
unsigned long flags;
bool rts;
bool changed = false;
if (!usb_get_intfdata(port->serial->interface))
return -ENODEV;
/* We only support RTS so we only handle that */
spin_lock_irqsave(&priv->lock, flags);
rts = priv->rts;
if (set & TIOCM_RTS)
priv->rts = true;
if (clear & TIOCM_RTS)
priv->rts = false;
changed = rts ^ priv->rts;
spin_unlock_irqrestore(&priv->lock, flags);
if (!changed)
return 0;
/* Send the new RTS state to the connected device */
return send_control_msg(port, CONTROL_RTS, !rts);
}
static void ipw_release(struct usb_serial *serial)
{
struct usb_wwan_intf_private *data = usb_get_serial_data(serial);
usb_set_serial_data(serial, NULL);
kfree(data);
}
static int opticon_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct opticon_private *priv = usb_get_serial_data(port->serial);
unsigned long flags;
int result = 0;
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave(&priv->lock, flags);
priv->throttled = false;
priv->actually_throttled = false;
priv->port = port;
spin_unlock_irqrestore(&priv->lock, flags);
/* Start reading from the device */
usb_fill_bulk_urb(priv->bulk_read_urb, priv->udev,
usb_rcvbulkpipe(priv->udev,
priv->bulk_address),
priv->bulk_in_buffer, priv->buffer_size,
opticon_bulk_callback, priv);
result = usb_submit_urb(priv->bulk_read_urb, GFP_KERNEL);
if (result)
dev_err(&port->dev,
"%s - failed resubmitting read urb, error %d\n",
__func__, result);
return result;
}
static int qt2_setup_urbs(struct usb_serial *serial)
{
struct usb_serial_port *port0;
struct qt2_serial_private *serial_priv;
int status;
port0 = serial->port[0];
serial_priv = usb_get_serial_data(serial);
serial_priv->read_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!serial_priv->read_urb)
return -ENOMEM;
usb_fill_bulk_urb(serial_priv->read_urb, serial->dev,
usb_rcvbulkpipe(serial->dev,
port0->bulk_in_endpointAddress),
serial_priv->read_buffer,
QT2_READ_BUFFER_SIZE,
qt2_read_bulk_callback, serial);
status = usb_submit_urb(serial_priv->read_urb, GFP_KERNEL);
if (status != 0) {
dev_err(&serial->dev->dev,
"%s - submit read urb failed %i\n", __func__, status);
usb_free_urb(serial_priv->read_urb);
return status;
}
return 0;
}
static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
struct pl2303_serial_private *spriv = usb_get_serial_data(serial);
int result;
if (spriv->type != HX) {
usb_clear_halt(serial->dev, port->write_urb->pipe);
usb_clear_halt(serial->dev, port->read_urb->pipe);
} else {
/* reset upstream data pipes */
pl2303_vendor_write(8, 0, serial);
pl2303_vendor_write(9, 0, serial);
}
/* Setup termios */
if (tty)
pl2303_set_termios(tty, port, NULL);
result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (result) {
dev_err(&port->dev, "%s - failed submitting interrupt urb,"
" error %d\n", __func__, result);
return result;
}
result = usb_serial_generic_open(tty, port);
if (result) {
usb_kill_urb(port->interrupt_in_urb);
return result;
}
return 0;
}
static void qc_release(struct usb_serial *serial)
{
struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
usb_set_serial_data(serial, NULL);
kfree(priv);
}
static void qt2_close(struct usb_serial_port *port)
{
struct usb_serial *serial;
struct qt2_serial_private *serial_priv;
struct qt2_port_private *port_priv;
unsigned long flags;
int i;
serial = port->serial;
serial_priv = usb_get_serial_data(serial);
port_priv = usb_get_serial_port_data(port);
port_priv->is_open = false;
spin_lock_irqsave(&port_priv->urb_lock, flags);
if (port_priv->write_urb->status == -EINPROGRESS)
usb_kill_urb(port_priv->write_urb);
port_priv->urb_in_use = false;
spin_unlock_irqrestore(&port_priv->urb_lock, flags);
mutex_lock(&port->serial->disc_mutex);
if (port->serial->disconnected) {
mutex_unlock(&port->serial->disc_mutex);
return;
}
/* flush the port transmit buffer */
i = usb_control_msg(serial->dev,
usb_rcvctrlpipe(serial->dev, 0),
QT2_FLUSH_DEVICE, 0x40, 1,
port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);
if (i < 0)
dev_err(&port->dev, "%s - transmit buffer flush failed: %i\n",
__func__, i);
/* flush the port receive buffer */
i = usb_control_msg(serial->dev,
usb_rcvctrlpipe(serial->dev, 0),
QT2_FLUSH_DEVICE, 0x40, 0,
port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);
if (i < 0)
dev_err(&port->dev, "%s - receive buffer flush failed: %i\n",
__func__, i);
/* close the port */
i = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0),
QT_OPEN_CLOSE_CHANNEL,
0x40, 0,
port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);
if (i < 0)
dev_err(&port->dev, "%s - close port failed %i\n",
__func__, i);
mutex_unlock(&port->serial->disc_mutex);
}
static int qt2_setup_urbs(struct usb_serial *serial)
{
struct usb_serial_port *port;
struct usb_serial_port *port0;
struct qt2_serial_private *serial_priv;
struct qt2_port_private *port_priv;
int pcount, status;
port0 = serial->port[0];
serial_priv = usb_get_serial_data(serial);
serial_priv->read_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!serial_priv->read_urb) {
dev_err(&serial->dev->dev, "No free urbs available\n");
return -ENOMEM;
}
usb_fill_bulk_urb(serial_priv->read_urb, serial->dev,
usb_rcvbulkpipe(serial->dev,
port0->bulk_in_endpointAddress),
serial_priv->read_buffer,
sizeof(serial_priv->read_buffer),
qt2_read_bulk_callback, serial);
/* setup write_urb for each port */
for (pcount = 0; pcount < serial->num_ports; pcount++) {
port = serial->port[pcount];
port_priv = usb_get_serial_port_data(port);
port_priv->write_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!port_priv->write_urb) {
dev_err(&serial->dev->dev,
"failed to alloc write_urb for port %i\n",
pcount);
return -ENOMEM;
}
usb_fill_bulk_urb(port_priv->write_urb,
serial->dev,
usb_sndbulkpipe(serial->dev,
port0->
bulk_out_endpointAddress),
port_priv->write_buffer,
sizeof(port_priv->write_buffer),
qt2_write_bulk_callback, port);
}
status = usb_submit_urb(serial_priv->read_urb, GFP_KERNEL);
if (status != 0) {
dev_err(&serial->dev->dev,
"%s - submit read urb failed %i\n", __func__, status);
usb_free_urb(serial_priv->read_urb);
return status;
}
return 0;
}
static int opticon_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usb_serial *serial = usb_get_intfdata(intf);
struct opticon_private *priv = usb_get_serial_data(serial);
usb_kill_urb(priv->bulk_read_urb);
return 0;
}
static void qc_release(struct usb_serial *serial)
{
struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
/* Free the private data allocated in qcprobe */
usb_set_serial_data(serial, NULL);
kfree(priv);
}
static void symbol_release(struct usb_serial *serial)
{
struct symbol_private *priv = usb_get_serial_data(serial);
dbg("%s", __func__);
kfree(priv->int_buffer);
kfree(priv);
}
static void symbol_disconnect(struct usb_serial *serial)
{
struct symbol_private *priv = usb_get_serial_data(serial);
dbg("%s", __func__);
usb_kill_urb(priv->int_urb);
usb_free_urb(priv->int_urb);
}
static void opticon_close(struct usb_serial_port *port)
{
struct opticon_private *priv = usb_get_serial_data(port->serial);
dbg("%s - port %d", __func__, port->number);
usb_kill_urb(priv->bulk_read_urb);
}
static void qt2_release(struct usb_serial *serial)
{
struct qt2_serial_private *serial_priv;
serial_priv = usb_get_serial_data(serial);
usb_free_urb(serial_priv->read_urb);
kfree(serial_priv);
}
static void qt2_release(struct usb_serial *serial)
{
int i;
kfree(usb_get_serial_data(serial));
for (i = 0; i < serial->num_ports; i++)
kfree(usb_get_serial_port_data(serial->port[i]));
}
static void opticon_disconnect(struct usb_serial *serial)
{
struct opticon_private *priv = usb_get_serial_data(serial);
dbg("%s", __func__);
usb_kill_urb(priv->bulk_read_urb);
usb_free_urb(priv->bulk_read_urb);
}
static void symbol_close(struct usb_serial_port *port)
{
struct symbol_private *priv = usb_get_serial_data(port->serial);
dbg("%s - port %d", __func__, port->number);
usb_kill_urb(priv->int_urb);
}
static void opticon_release(struct usb_serial *serial)
{
struct opticon_private *priv = usb_get_serial_data(serial);
dbg("%s", __func__);
kfree(priv->bulk_in_buffer);
kfree(priv);
}
static int modem_tiocmget(struct tty_struct *tty, struct file *file)
{
struct usb_serial_port *port = tty->driver_data;
struct modem_port *modem_port_ptr = usb_get_serial_data(port->serial);
if (modem_port_ptr == NULL)
return 0;
return (int)modem_port_ptr->modem_status;
}
static void opticon_close(struct tty_struct *tty, struct usb_serial_port *port,
struct file *filp)
{
struct opticon_private *priv = usb_get_serial_data(port->serial);
dbg("%s - port %d", __func__, port->number);
/* shutdown our urbs */
usb_kill_urb(priv->bulk_read_urb);
}
static void symbol_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct symbol_private *priv = usb_get_serial_data(port->serial);
dbg("%s - port %d", __func__, port->number);
spin_lock_irq(&priv->lock);
priv->throttled = true;
spin_unlock_irq(&priv->lock);
}
static void qc_release(struct usb_serial *serial)
{
struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
dbg("%s", __func__);
/* Call usb_wwan release & free the private data allocated in qcprobe */
usb_wwan_release(serial);
usb_set_serial_data(serial, NULL);
kfree(priv);
}
static void opticon_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct opticon_private *priv = usb_get_serial_data(port->serial);
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave(&priv->lock, flags);
priv->throttled = true;
spin_unlock_irqrestore(&priv->lock, flags);
}
static void opticon_shutdown(struct usb_serial *serial)
{
struct opticon_private *priv = usb_get_serial_data(serial);
dbg("%s", __func__);
usb_kill_urb(priv->bulk_read_urb);
usb_free_urb(priv->bulk_read_urb);
kfree(priv->bulk_in_buffer);
kfree(priv);
usb_set_serial_data(serial, NULL);
}
static void modem_usb_disable_wakeup_irq(struct usb_interface *intf)
{
struct usb_serial *serial = usb_get_intfdata(intf);
struct modem_port *modem_port_ptr =
usb_get_serial_data(serial);
if (modem_port_ptr == NULL)
return;
if (modem_wake_irq) {
disable_irq_wake(modem_wake_irq);
disable_irq(modem_wake_irq);
}
}
static void hsictty_write_callback(struct urb *urb)
{
struct usb_serial_port *port;
struct hsictty_port_private *portdata;
struct hsictty_intf_private *intfdata;
int i;
port = urb->context;
intfdata = usb_get_serial_data(port->serial);
portdata = usb_get_serial_port_data(port);
if (urb->actual_length <= 0) {
hsictty_error
("%s: write failed, write length: %d in channel:%d, endpoint:%d\n",
__func__, urb->actual_length, portdata->channel,
usb_pipeendpoint(urb->pipe));
} else {
hsictty_dbg("%s: write length: %d in channel:%d, endpoint:%d\n",
__func__, urb->actual_length, portdata->channel,
usb_pipeendpoint(urb->pipe));
}
#ifdef BACKUP_DATA_DUMP
if (!dumped)
backup_log(portdata->channel, 1,
urb->transfer_buffer, urb->transfer_buffer_length);
#endif
usb_serial_port_softint(port);
usb_autopm_put_interface_async(port->serial->interface);
portdata = usb_get_serial_port_data(port);
spin_lock(&intfdata->susp_lock);
intfdata->in_flight--;
spin_unlock(&intfdata->susp_lock);
for (i = 0; i < N_OUT_URB; ++i) {
if (portdata->out_urbs[i] == urb) {
smp_mb__before_clear_bit();
hsictty_dbg
("%s: urb(%d) freed on channel:%d, endpoint:%d, in_flight:%d, pm use cnt:%d\n",
__func__, i, portdata->channel,
usb_pipeendpoint(urb->pipe), intfdata->in_flight,
atomic_read(&port->serial->interface->dev.power.
usage_count));
clear_bit(i, &portdata->out_busy);
complete_all(&portdata->tx_notifier);
break;
}
}
}
static int opticon_resume(struct usb_interface *intf)
{
struct usb_serial *serial = usb_get_intfdata(intf);
struct opticon_private *priv = usb_get_serial_data(serial);
struct usb_serial_port *port = serial->port[0];
int result;
mutex_lock(&port->mutex);
if (port->port.count)
result = usb_submit_urb(priv->bulk_read_urb, GFP_NOIO);
else
result = 0;
mutex_unlock(&port->mutex);
return result;
}
static int sierra_calc_num_ports(struct usb_serial *serial)
{
int result;
int *num_ports = usb_get_serial_data(serial);
dev_dbg(&serial->dev->dev, "%s", __func__);
result = *num_ports;
if (result) {
kfree(num_ports);
usb_set_serial_data(serial, NULL);
}
return result;
}
static int mxu1_port_probe(struct usb_serial_port *port)
{
struct mxu1_port *mxport;
struct mxu1_device *mxdev;
struct urb *urb;
mxport = kzalloc(sizeof(struct mxu1_port), GFP_KERNEL);
if (!mxport)
return -ENOMEM;
spin_lock_init(&mxport->mxp_lock);
mutex_init(&mxport->mxp_mutex);
mxport->mxp_port = port;
mxdev = usb_get_serial_data(port->serial);
urb = port->interrupt_in_urb;
if (!urb) {
dev_err(&port->dev, "%s - no interrupt urb\n", __func__);
return -EINVAL;
}
switch (mxdev->mxd_model) {
case MXU1_1110_PRODUCT_ID:
mxport->mxp_uart_types = MXU1_TYPE_RS232;
mxport->mxp_uart_mode = MXU1_UART_232;
break;
case MXU1_1130_PRODUCT_ID:
case MXU1_1131_PRODUCT_ID:
mxport->mxp_uart_types = MXU1_TYPE_RS422 | MXU1_TYPE_RS485;
mxport->mxp_uart_mode = MXU1_UART_485_RECEIVER_DISABLED;
break;
case MXU1_1150_PRODUCT_ID:
case MXU1_1151_PRODUCT_ID:
mxport->mxp_uart_types =
MXU1_TYPE_RS232 | MXU1_TYPE_RS422 | MXU1_TYPE_RS485;
mxport->mxp_uart_mode = MXU1_UART_232;
break;
}
usb_set_serial_port_data(port, mxport);
port->port.closing_wait =
msecs_to_jiffies(MXU1_DEFAULT_CLOSING_WAIT * 10);
port->port.drain_delay = 1;
return 0;
}
