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path: root/drivers/usb/serial/qcserial.c
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Diffstat (limited to 'drivers/usb/serial/qcserial.c')
-rw-r--r--drivers/usb/serial/qcserial.c64
1 files changed, 47 insertions, 17 deletions
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 53a2d5a935a2..04bb759536bb 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -15,6 +15,8 @@
#include <linux/tty_flip.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
+#include <linux/slab.h>
+#include "usb-wwan.h"
#define DRIVER_AUTHOR "Qualcomm Inc"
#define DRIVER_DESC "Qualcomm USB Serial driver"
@@ -76,6 +78,8 @@ static const struct usb_device_id id_table[] = {
{USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */
{USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
+ {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */
+ {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
@@ -92,6 +96,8 @@ static struct usb_driver qcdriver = {
static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
{
+ struct usb_wwan_intf_private *data;
+ struct usb_host_interface *intf = serial->interface->cur_altsetting;
int retval = -ENODEV;
__u8 nintf;
__u8 ifnum;
@@ -100,33 +106,45 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
nintf = serial->dev->actconfig->desc.bNumInterfaces;
dbg("Num Interfaces = %d", nintf);
- ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
+ ifnum = intf->desc.bInterfaceNumber;
dbg("This Interface = %d", ifnum);
+ data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private),
+ GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ spin_lock_init(&data->susp_lock);
+
switch (nintf) {
case 1:
/* QDL mode */
- if (serial->interface->num_altsetting == 2) {
- struct usb_host_interface *intf;
-
+ /* Gobi 2000 has a single altsetting, older ones have two */
+ if (serial->interface->num_altsetting == 2)
intf = &serial->interface->altsetting[1];
- if (intf->desc.bNumEndpoints == 2) {
- if (usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
- usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
- dbg("QDL port found");
- retval = usb_set_interface(serial->dev, ifnum, 1);
- if (retval < 0) {
- dev_err(&serial->dev->dev,
- "Could not set interface, error %d\n",
- retval);
- retval = -ENODEV;
- }
- return retval;
- }
+ else if (serial->interface->num_altsetting > 2)
+ break;
+
+ if (intf->desc.bNumEndpoints == 2 &&
+ usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
+ usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
+ dbg("QDL port found");
+
+ if (serial->interface->num_altsetting == 1)
+ return 0;
+
+ retval = usb_set_interface(serial->dev, ifnum, 1);
+ if (retval < 0) {
+ dev_err(&serial->dev->dev,
+ "Could not set interface, error %d\n",
+ retval);
+ retval = -ENODEV;
}
+ return retval;
}
break;
+ case 3:
case 4:
/* Composite mode */
if (ifnum == 2) {
@@ -161,6 +179,18 @@ static struct usb_serial_driver qcdevice = {
.usb_driver = &qcdriver,
.num_ports = 1,
.probe = qcprobe,
+ .open = usb_wwan_open,
+ .close = usb_wwan_close,
+ .write = usb_wwan_write,
+ .write_room = usb_wwan_write_room,
+ .chars_in_buffer = usb_wwan_chars_in_buffer,
+ .attach = usb_wwan_startup,
+ .disconnect = usb_wwan_disconnect,
+ .release = usb_wwan_release,
+#ifdef CONFIG_PM
+ .suspend = usb_wwan_suspend,
+ .resume = usb_wwan_resume,
+#endif
};
static int __init qcinit(void)