static int sierra_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
int result = 0;
struct usb_device *udev;
u8 ifnum;
udev = serial->dev;
ifnum = sierra_calc_interface(serial);
/*
* If this interface supports more than 1 alternate
* select the 2nd one
*/
if (serial->interface->num_altsetting == 2) {
dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n",
ifnum);
/* We know the alternate setting is 1 for the MC8785 */
usb_set_interface(udev, ifnum, 1);
}
/* ifnum could have changed - by calling usb_set_interface */
ifnum = sierra_calc_interface(serial);
if (is_blacklisted(ifnum,
(struct sierra_iface_info *)id->driver_info)) {
dev_dbg(&serial->dev->dev,
"Ignoring blacklisted interface #%d\n", ifnum);
return -ENODEV;
}
return result;
}
static int sierra_send_setup(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
struct sierra_port_private *portdata;
__u16 interface = 0;
int val = 0;
int do_send = 0;
int retval;
portdata = usb_get_serial_port_data(port);
if (portdata->dtr_state)
val |= 0x01;
if (portdata->rts_state)
val |= 0x02;
/* If composite device then properly report interface */
if (serial->num_ports == 1) {
interface = sierra_calc_interface(serial);
/* Control message is sent only to interfaces with
* interrupt_in endpoints
*/
if (port->interrupt_in_urb) {
/* send control message */
do_send = 1;
}
}
/* Otherwise the need to do non-composite mapping */
else {
if (port->bulk_out_endpointAddress == 2)
interface = 0;
else if (port->bulk_out_endpointAddress == 4)
interface = 1;
else if (port->bulk_out_endpointAddress == 5)
interface = 2;
do_send = 1;
}
if (!do_send)
return 0;
retval = usb_autopm_get_interface(serial->interface);
if (retval < 0)
return retval;
retval = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT);
usb_autopm_put_interface(serial->interface);
return retval;
}
static int sierra_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
int result = 0;
struct usb_device *udev;
int *num_ports;
u8 ifnum;
u8 numendpoints;
dev_dbg(&serial->dev->dev, "%s", __func__);
num_ports = kmalloc(sizeof(*num_ports), GFP_KERNEL);
if (!num_ports)
return -ENOMEM;
ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints;
udev = serial->dev;
/* Figure out the interface number from the serial structure */
ifnum = sierra_calc_interface(serial);
/*
* If this interface supports more than 1 alternate
* select the 2nd one
*/
if (serial->interface->num_altsetting == 2) {
dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n",
ifnum);
/* We know the alternate setting is 1 for the MC8785 */
usb_set_interface(udev, ifnum, 1);
}
/* Dummy interface present on some SKUs should be ignored */
if (ifnum == 0x99)
*num_ports = 0;
else if (numendpoints <= 6)
*num_ports = 1;
else
*num_ports = (numendpoints-1)/2;
/*
* save off our num_ports info so that we can use it in the
* calc_num_ports callback
*/
usb_set_serial_data(serial, (void *)num_ports);
return result;
}
static int sierra_port_probe(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
struct sierra_port_private *portdata;
const struct sierra_iface_info *himemoryp;
u8 ifnum;
portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
if (!portdata)
return -ENOMEM;
spin_lock_init(&portdata->lock);
init_usb_anchor(&portdata->active);
init_usb_anchor(&portdata->delayed);
/* Assume low memory requirements */
portdata->num_out_urbs = N_OUT_URB;
portdata->num_in_urbs = N_IN_URB;
/* Determine actual memory requirements */
if (serial->num_ports == 1) {
/* Get interface number for composite device */
ifnum = sierra_calc_interface(serial);
himemoryp = &typeB_interface_list;
} else {
/* This is really the usb-serial port number of the interface
* rather than the interface number.
*/
ifnum = port->port_number;
himemoryp = &typeA_interface_list;
}
if (is_himemory(ifnum, himemoryp)) {
portdata->num_out_urbs = N_OUT_URB_HM;
portdata->num_in_urbs = N_IN_URB_HM;
}
dev_dbg(&port->dev,
"Memory usage (urbs) interface #%d, in=%d, out=%d\n",
ifnum, portdata->num_in_urbs, portdata->num_out_urbs);
usb_set_serial_port_data(port, portdata);
return 0;
}
static int sierra_send_setup(struct tty_struct *tty,
struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
struct sierra_port_private *portdata;
__u16 interface = 0;
dev_dbg(&port->dev, "%s", __func__);
portdata = usb_get_serial_port_data(port);
if (tty) {
int val = 0;
if (portdata->dtr_state)
val |= 0x01;
if (portdata->rts_state)
val |= 0x02;
/* If composite device then properly report interface */
if (serial->num_ports == 1)
interface = sierra_calc_interface(serial);
/* Otherwise the need to do non-composite mapping */
else {
if (port->bulk_out_endpointAddress == 2)
interface = 0;
else if (port->bulk_out_endpointAddress == 4)
interface = 1;
else if (port->bulk_out_endpointAddress == 5)
interface = 2;
}
return usb_control_msg(serial->dev,
usb_rcvctrlpipe(serial->dev, 0),
0x22, 0x21, val, interface,
NULL, 0, USB_CTRL_SET_TIMEOUT);
}
return 0;
}
