ti_usb_3410_5052: add Multi-Tech modem support

Add Multi-Tech cellular modem support to the ti_usb_3410_5052 driver.
Signed-off-by: Chris Adams <cmadams@hiwaay.net>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/usb/serial/ti_usb_3410_5052.c

@@ -176,9 +176,14 @@ static unsigned int product_5052_count;
 /* the array dimension is the number of default entries plus */
 /* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */
 /* null entry */
-static struct usb_device_id ti_id_table_3410[2+TI_EXTRA_VID_PID_COUNT+1] = {
+static struct usb_device_id ti_id_table_3410[7+TI_EXTRA_VID_PID_COUNT+1] = {
 	{ USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
 	{ USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
 };
 
 static struct usb_device_id ti_id_table_5052[4+TI_EXTRA_VID_PID_COUNT+1] = {
@@ -191,6 +196,11 @@ static struct usb_device_id ti_id_table_5052[4+TI_EXTRA_VID_PID_COUNT+1] = {
 static struct usb_device_id ti_id_table_combined[6+2*TI_EXTRA_VID_PID_COUNT+1] = {
 	{ USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
 	{ USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
 	{ USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) },
 	{ USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) },
 	{ USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) },
@@ -1689,10 +1699,26 @@ static int ti_download_firmware(struct ti_device *tdev)
 	sprintf(buf, "ti_usb-v%04x-p%04x.fw", dev->descriptor.idVendor,
 	    dev->descriptor.idProduct);
 	if ((status = request_firmware(&fw_p, buf, &dev->dev)) != 0) {
+		buf[0] = '\0';
+		if (dev->descriptor.idVendor == MTS_VENDOR_ID) {
+			switch (dev->descriptor.idProduct) {
+			case MTS_CDMA_PRODUCT_ID:
+				strcpy(buf, "mts_cdma.fw");
+				break;
+			case MTS_GSM_PRODUCT_ID:
+				strcpy(buf, "mts_gsm.fw");
+				break;
+			case MTS_EDGE_PRODUCT_ID:
+				strcpy(buf, "mts_edge.fw");
+				break;
+			}
+		}
+		if (buf[0] == '\0') {
 			if (tdev->td_is_3410)
 				strcpy(buf, "ti_3410.fw");
 			else
 				strcpy(buf, "ti_5052.fw");
+		}
 		status = request_firmware(&fw_p, buf, &dev->dev);
 	}
 	if (status) {

drivers/usb/serial/ti_usb_3410_5052.h

@@ -34,6 +34,14 @@
 #define TI_5052_EEPROM_PRODUCT_ID	0x505A	/* EEPROM, no firmware */
 #define TI_5052_FIRMWARE_PRODUCT_ID	0x505F	/* firmware is running */
 
+/* Multi-Tech vendor and product ids */
+#define MTS_VENDOR_ID			0x06E0
+#define MTS_GSM_NO_FW_PRODUCT_ID	0xF108
+#define MTS_CDMA_NO_FW_PRODUCT_ID	0xF109
+#define MTS_CDMA_PRODUCT_ID		0xF110
+#define MTS_GSM_PRODUCT_ID		0xF111
+#define MTS_EDGE_PRODUCT_ID		0xF112
+
 /* Commands */
 #define TI_GET_VERSION			0x01
 #define TI_GET_PORT_STATUS		0x02