From f81700b6bb2eda3756247bce472d8eaf6f466f61 Mon Sep 17 00:00:00 2001
From: OpenWrt community <openwrt-devel@lists.openwrt.org>
Date: Wed, 13 Jul 2022 13:49:26 +0200
Subject: [PATCH] net/usb/qmi_wwan: add MeigLink modem support

---
 drivers/net/usb/qmi_wwan.c  | 1 +
 drivers/usb/serial/option.c | 7 +++++++
 2 files changed, 8 insertions(+)

--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -1082,12 +1082,18 @@ static const struct usb_device_id produc
 		USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7),
 		.driver_info = (unsigned long)&qmi_wwan_info,
 	},
+	{	/* Meiglink SGM828 */
+		USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d49, USB_CLASS_VENDOR_SPEC, 0x10, 0x05),
+		.driver_info = (unsigned long)&qmi_wwan_info,
+	},
+
 	{QMI_MATCH_FF_FF_FF(0x2c7c, 0x0125)},	/* Quectel EC25, EC20 R2.0  Mini PCIe */
 	{QMI_MATCH_FF_FF_FF(0x2c7c, 0x0306)},	/* Quectel EP06/EG06/EM06 */
 	{QMI_MATCH_FF_FF_FF(0x2c7c, 0x0512)},	/* Quectel EG12/EM12 */
 	{QMI_MATCH_FF_FF_FF(0x2c7c, 0x0620)},	/* Quectel EM160R-GL */
 	{QMI_MATCH_FF_FF_FF(0x2c7c, 0x0800)},	/* Quectel RM500Q-GL */
 	{QMI_MATCH_FF_FF_FF(0x2c7c, 0x0801)},	/* Quectel RM520N */
+	{QMI_MATCH_FF_FF_FF(0x05c6, 0xf601)},	/* MeigLink SLM750 */
 
 	/* 3. Combined interface devices matching on interface number */
 	{QMI_FIXED_INTF(0x0408, 0xea42, 4)},	/* Yota / Megafon M100-1 */
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -247,6 +247,11 @@ static void option_instat_callback(struc
 #define UBLOX_PRODUCT_R410M			0x90b2
 /* These Yuga products use Qualcomm's vendor ID */
 #define YUGA_PRODUCT_CLM920_NC5			0x9625
+/* These MeigLink products use Qualcomm's vendor ID */
+#define MEIGLINK_PRODUCT_SLM750			0xf601
+
+#define MEIGLINK_VENDOR_ID			0x2dee
+#define MEIGLINK_PRODUCT_SLM828			0x4d49
 
 #define QUECTEL_VENDOR_ID			0x2c7c
 /* These Quectel products use Quectel's vendor ID */
@@ -1156,6 +1161,11 @@ static const struct usb_device_id option
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000), /* SIMCom SIM5218 */
 	  .driver_info = NCTRL(0) | NCTRL(1) | NCTRL(2) | NCTRL(3) | RSVD(4) },
+	/* MeiG */
+	{ USB_DEVICE_AND_INTERFACE_INFO(MEIGLINK_VENDOR_ID, MEIGLINK_PRODUCT_SLM828, USB_CLASS_VENDOR_SPEC, 0x10, 0x01) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(MEIGLINK_VENDOR_ID, MEIGLINK_PRODUCT_SLM828, USB_CLASS_VENDOR_SPEC, 0x10, 0x02) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(MEIGLINK_VENDOR_ID, MEIGLINK_PRODUCT_SLM828, USB_CLASS_VENDOR_SPEC, 0x10, 0x03) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(MEIGLINK_VENDOR_ID, MEIGLINK_PRODUCT_SLM828, USB_CLASS_VENDOR_SPEC, 0x10, 0x04) },
 	/* Quectel products using Qualcomm vendor ID */
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC15)},
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC20),
@@ -1197,6 +1207,11 @@ static const struct usb_device_id option
 	  .driver_info = ZLP },
 	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96),
 	  .driver_info = RSVD(4) },
+	/* Meiglink products using Qualcomm vendor ID */
+	// Works OK. In case of some issues check macros that are used by Quectel Products
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUALCOMM_VENDOR_ID, MEIGLINK_PRODUCT_SLM750, 0xff, 0xff, 0xff),
+	  .driver_info = NUMEP2 },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUALCOMM_VENDOR_ID, MEIGLINK_PRODUCT_SLM750, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0, 0) },
