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Date: Fri, 11 Jun 2021 15:58:41 +0200 From: Stefan Brüns <stefan.bruens@...h-aachen.de> To: Johan Hovold <johan@...nel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org> CC: Stefan Brüns <stefan.bruens@...h-aachen.de>, <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org> Subject: [PATCH v2] USB: serial: qcserial: Support for SDX55 based Sierra Wireless 5G modules The devices exposes two different interface compositions: - QDL mode, single interface - MBIM mode, MBIM class compliant plus AT/DM(/ADB) Current firmware versions (up to 01.07.19) do not expose an NMEA port. Signed-off-by: Stefan Brüns <stefan.bruens@...h-aachen.de> --- drivers/usb/serial/qcserial.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c index 83da8236e3c8..4ff325a14c98 100644 --- a/drivers/usb/serial/qcserial.c +++ b/drivers/usb/serial/qcserial.c @@ -26,12 +26,15 @@ enum qcserial_layouts { QCSERIAL_G1K = 1, /* Gobi 1000 */ QCSERIAL_SWI = 2, /* Sierra Wireless */ QCSERIAL_HWI = 3, /* Huawei */ + QCSERIAL_SWI2 = 4, /* Sierra Wireless */ }; #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_SWI2(v, p) \ + USB_DEVICE(v, p), .driver_info = QCSERIAL_SWI2 #define DEVICE_HWI(v, p) \ USB_DEVICE(v, p), .driver_info = QCSERIAL_HWI @@ -181,6 +184,10 @@ static const struct usb_device_id id_table[] = { {DEVICE_SWI(0x413c, 0x81d1)}, /* Dell Wireless 5818 */ {DEVICE_SWI(0x413c, 0x81d2)}, /* Dell Wireless 5818 */ + /* SDX55 based Sierra Wireless devices */ + {DEVICE_SWI2(0x1199, 0x90d2)}, /* Sierra Wireless EM919x QDL */ + {DEVICE_SWI2(0x1199, 0x90d3)}, /* Sierra Wireless EM919x */ + /* Huawei devices */ {DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */ @@ -359,6 +366,28 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) break; } break; + case QCSERIAL_SWI2: + /* + * Sierra Wireless SDX55 in MBIM mode: + * 0/1: MBIM Control/Data + * 3: AT-capable modem port + * 4: DM/DIAG (use libqcdm from ModemManager for communication) + * 5: ADB + */ + switch (ifnum) { + case 3: + dev_dbg(dev, "Modem port found\n"); + sendsetup = true; + break; + case 4: + dev_dbg(dev, "DM/DIAG interface found\n"); + break; + default: + /* don't claim any unsupported interface */ + altsetting = -1; + break; + } + break; case QCSERIAL_HWI: /* * Huawei devices map functions by subclass + protocol -- 2.31.1
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