[PATCH 3.16.y-ckt 031/216] USB: qcserial: Add support for HP lt4112 LTE/HSPA+ Gobi 4G Modem

Luis Henriques
2015-01-12T19:10:15Z

From: Martin Hauke <mardnh@gmx.de>

commit e7181d005e84b15fe3121a8d22840adc3395d496 upstream.

Added new device layout "DEVICE_HWI" and also added the USB VID/PID for the
HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e)

Signed-off-by: Martin Hauke <mardnh@gmx.de>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
drivers/usb/serial/qcserial.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)

diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index b2aa003bf411..cb3e14780a7e 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -27,12 +27,15 @@ enum qcserial_layouts {
QCSERIAL_G2K = 0, /* Gobi 2000 */
QCSERIAL_G1K = 1, /* Gobi 1000 */
QCSERIAL_SWI = 2, /* Sierra Wireless */
+ QCSERIAL_HWI = 3, /* Huawei */
};

#define DEVICE_G1K(v, p) \
USB_DEVICE(v, p), .driver_info = QCSERIAL_G1K
#define DEVICE_SWI(v, p) \
USB_DEVICE(v, p), .driver_info = QCSERIAL_SWI
+#define DEVICE_HWI(v, p) \
+ USB_DEVICE(v, p), .driver_info = QCSERIAL_HWI

static const struct usb_device_id id_table[] = {
/* Gobi 1000 devices */
@@ -157,6 +160,9 @@ static const struct usb_device_id id_table[] = {
{DEVICE_SWI(0x413c, 0x81a8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81a9)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */

+ /* Huawei devices */
+ {DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */
+
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
@@ -287,6 +293,33 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
break;
}
break;
+ case QCSERIAL_HWI:
+ /*
+ * Huawei layout:
+ * 0: AT-capable modem port
+ * 1: DM/DIAG
+ * 2: AT-capable modem port
+ * 3: CCID-compatible PCSC interface
+ * 4: QMI/net
+ * 5: NMEA
+ */
+ switch (ifnum) {
+ case 0:
+ case 2:
+ dev_dbg(dev, "Modem port found\n");
+ break;
+ case 1:
+ dev_dbg(dev, "DM/DIAG interface found\n");
+ break;
+ case 5:
+ dev_dbg(dev, "NMEA GPS interface found\n");
+ break;
+ default:
+ /* don't claim any unsupported interface */
+ altsetting = -1;
+ break;
+ }
+ break;
default:
dev_err(dev, "unsupported device layout type: %lu\n",
id->driver_info);
--
2.1.4