diff options
Diffstat (limited to 'drivers/usb/serial/sierra.c')
| -rw-r--r-- | drivers/usb/serial/sierra.c | 61 |
1 files changed, 37 insertions, 24 deletions
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index 3eb6143bb646..ef0bdb08d788 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -26,6 +26,7 @@ #include <linux/jiffies.h> #include <linux/errno.h> #include <linux/tty.h> +#include <linux/slab.h> #include <linux/tty_flip.h> #include <linux/module.h> #include <linux/usb.h> @@ -226,9 +227,10 @@ static const struct sierra_iface_info direct_ip_interface_blacklist = { .ifaceinfo = direct_ip_non_serial_ifaces, }; -static struct usb_device_id id_table [] = { +static const struct usb_device_id id_table[] = { { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ + { USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */ { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ @@ -304,16 +306,6 @@ static struct usb_device_id id_table [] = { }; MODULE_DEVICE_TABLE(usb, id_table); -static struct usb_driver sierra_driver = { - .name = "sierra", - .probe = usb_serial_probe, - .disconnect = usb_serial_disconnect, - .suspend = usb_serial_suspend, - .resume = usb_serial_resume, - .id_table = id_table, - .no_dynamic_id = 1, - .supports_autosuspend = 1, -}; struct sierra_port_private { spinlock_t lock; /* lock the structure */ @@ -477,7 +469,7 @@ static void sierra_outdat_callback(struct urb *urb) static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { - struct sierra_port_private *portdata = usb_get_serial_port_data(port); + struct sierra_port_private *portdata; struct sierra_intf_private *intfdata; struct usb_serial *serial = port->serial; unsigned long flags; @@ -604,14 +596,15 @@ static void sierra_indat_callback(struct urb *urb) } else { if (urb->actual_length) { tty = tty_port_tty_get(&port->port); - - tty_buffer_request_room(tty, urb->actual_length); - tty_insert_flip_string(tty, data, urb->actual_length); - tty_flip_buffer_push(tty); - - tty_kref_put(tty); - usb_serial_debug_data(debug, &port->dev, __func__, - urb->actual_length, data); + if (tty) { + tty_insert_flip_string(tty, data, + urb->actual_length); + tty_flip_buffer_push(tty); + + tty_kref_put(tty); + usb_serial_debug_data(debug, &port->dev, + __func__, urb->actual_length, data); + } } else { dev_dbg(&port->dev, "%s: empty read urb" " received\n", __func__); @@ -619,10 +612,10 @@ static void sierra_indat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - if (port->port.count && status != -ESHUTDOWN && status != -EPERM) { + if (status != -ESHUTDOWN && status != -EPERM) { usb_mark_last_busy(port->serial->dev); err = usb_submit_urb(urb, GFP_ATOMIC); - if (err) + if (err && err != -EPERM) dev_err(&port->dev, "resubmit read urb failed." "(%d)\n", err); } @@ -681,11 +674,11 @@ static void sierra_instat_callback(struct urb *urb) dev_dbg(&port->dev, "%s: error %d\n", __func__, status); /* Resubmit urb so we continue receiving IRQ data */ - if (port->port.count && status != -ESHUTDOWN && status != -ENOENT) { + if (status != -ESHUTDOWN && status != -ENOENT) { usb_mark_last_busy(serial->dev); urb->dev = serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); - if (err) + if (err && err != -EPERM) dev_err(&port->dev, "%s: resubmit intr urb " "failed. (%d)\n", __func__, err); } @@ -1061,11 +1054,31 @@ static int sierra_resume(struct usb_serial *serial) return ec ? -EIO : 0; } + +static int sierra_reset_resume(struct usb_interface *intf) +{ + struct usb_serial *serial = usb_get_intfdata(intf); + dev_err(&serial->dev->dev, "%s\n", __func__); + return usb_serial_resume(intf); +} #else #define sierra_suspend NULL #define sierra_resume NULL +#define sierra_reset_resume NULL #endif +static struct usb_driver sierra_driver = { + .name = "sierra", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .suspend = usb_serial_suspend, + .resume = usb_serial_resume, + .reset_resume = sierra_reset_resume, + .id_table = id_table, + .no_dynamic_id = 1, + .supports_autosuspend = 1, +}; + static struct usb_serial_driver sierra_device = { .driver = { .owner = THIS_MODULE, |