kernel: add support MeigLink SLM828 modem

Another Qualcomm-based USB-connected modem, offering endpoints
 0 : rndis_host (link to voip subsystem listening on 169.254.5.100)
 1 : rndis_host (?)
 2 : option (?)
 3 : option (at)
 4 : option (at)
 5 : option (?)
 6 : GobiNet (qmi)
 7 : ?

Add support for this modem in rndis_host, option and qmi_wwan driver
which allows the modem to be used with ModemManager.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit f32baf6a65fbe294b9eb7b93f39b2aea1c3402ae)

2 files changed, 86 insertions, 4 deletions

diff --git a/target/linux/generic/hack-5.15/780-usb-net-MeigLink_modem_support.patch b/target/linux/generic/hack-5.15/780-usb-net-MeigLink_modem_support.patch
index e5667c1743..304f5480a3 100644
--- a/target/linux/generic/hack-5.15/780-usb-net-MeigLink_modem_support.patch
+++ b/target/linux/generic/hack-5.15/780-usb-net-MeigLink_modem_support.patch
@@ -10,26 +10,52 @@ Subject: [PATCH] net/usb/qmi_wwan: add MeigLink modem support
 
 --- a/drivers/net/usb/qmi_wwan.c
 +++ b/drivers/net/usb/qmi_wwan.c
-@@ -1086,6 +1086,7 @@ static const struct usb_device_id produc
+@@ -1080,12 +1080,18 @@ 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 */
++	{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 +247,8 @@ static void option_instat_callback(struc
+@@ -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 */
-@@ -1185,6 +1187,11 @@ static const struct usb_device_id option
+@@ -1144,6 +1149,11 @@ 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),
+@@ -1185,6 +1195,11 @@ static const struct usb_device_id option
  	  .driver_info = ZLP },
  	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96),
  	  .driver_info = RSVD(4) },
diff --git a/target/linux/generic/hack-5.15/781-usb-net-rndis-support-asr.patch b/target/linux/generic/hack-5.15/781-usb-net-rndis-support-asr.patch
new file mode 100644
index 0000000000..9934bb8078
--- /dev/null
+++ b/target/linux/generic/hack-5.15/781-usb-net-rndis-support-asr.patch
@@ -0,0 +1,56 @@
+--- a/drivers/net/usb/rndis_host.c
++++ b/drivers/net/usb/rndis_host.c
+@@ -630,6 +630,16 @@ static const struct driver_info	zte_rndi
+ 	.tx_fixup =	rndis_tx_fixup,
+ };
+ 
++static const struct driver_info asr_rndis_info = {
++	.description =	"Asr RNDIS device",
++	.flags =	FLAG_WWAN | FLAG_POINTTOPOINT | FLAG_FRAMING_RN | FLAG_NO_SETINT | FLAG_NOARP,
++	.bind =		rndis_bind,
++	.unbind =	rndis_unbind,
++	.status =	rndis_status,
++	.rx_fixup =	rndis_rx_fixup,
++	.tx_fixup =	rndis_tx_fixup,
++};
++
+ /*-------------------------------------------------------------------------*/
+ 
+ static const struct usb_device_id	products [] = {
+@@ -666,6 +676,36 @@ static const struct usb_device_id	produc
+ 	USB_INTERFACE_INFO(USB_CLASS_WIRELESS_CONTROLLER, 1, 3),
+ 	.driver_info = (unsigned long) &rndis_info,
+ }, {
++	/* Quectel EG060V rndis device */
++	USB_DEVICE_AND_INTERFACE_INFO(0x2c7c, 0x6004,
++				      USB_CLASS_WIRELESS_CONTROLLER, 1, 3),
++	.driver_info = (unsigned long) &asr_rndis_info,
++}, {
++	/* Quectel EC200A rndis device */
++	USB_DEVICE_AND_INTERFACE_INFO(0x2c7c, 0x6005,
++				      USB_CLASS_WIRELESS_CONTROLLER, 1, 3),
++	.driver_info = (unsigned long) &asr_rndis_info,
++}, {
++	/* Quectel EC200T rndis device */
++	USB_DEVICE_AND_INTERFACE_INFO(0x2c7c, 0x6026,
++				      USB_CLASS_WIRELESS_CONTROLLER, 1, 3),
++	.driver_info = (unsigned long) &asr_rndis_info,
++}, {
++	/* Simcom A7906E rndis device */
++	USB_DEVICE_AND_INTERFACE_INFO(0x1e0e, 0x9011,
++				      USB_CLASS_WIRELESS_CONTROLLER, 1, 3),
++	.driver_info = (unsigned long) &asr_rndis_info,
++}, {
++	/* Meig SLM770A */
++	USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d57,
++				      USB_CLASS_WIRELESS_CONTROLLER, 1, 3),
++	.driver_info = (unsigned long) &asr_rndis_info,
++}, {
++	/* Meig SLM828 */
++	USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d49,
++				      USB_CLASS_WIRELESS_CONTROLLER, 1, 3),
++	.driver_info = (unsigned long) &asr_rndis_info,
++}, {
+ 	/* Novatel Verizon USB730L */
+ 	USB_INTERFACE_INFO(USB_CLASS_MISC, 4, 1),
+ 	.driver_info = (unsigned long) &rndis_info,