| Message ID | 20210207005443.12936-1-lech.perczak@gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | [v3] usb: serial: option: update interface mapping for ZTE P685M | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Not a local patch |
On Sun, Feb 07, 2021 at 01:54:43AM +0100, Lech Perczak wrote: > This patch prepares for qmi_wwan driver support for the device. > Previously "option" driver mapped itself to interfaces 0 and 3 (matching > ff/ff/ff), while interface 3 is in fact a QMI port. > Interfaces 1 and 2 (matching ff/00/00) expose AT commands, > and weren't supported previously at all. > Without this patch, a possible conflict would exist if device ID was > added to qmi_wwan driver for interface 3. > > Update and simplify device ID to match interfaces 0-2 directly, > to expose QCDM (0), PCUI (1), and modem (2) ports and avoid conflict > with QMI (3), and ADB (4). > > The modem is used inside ZTE MF283+ router and carriers identify it as > such. > Interface mapping is: > 0: QCDM, 1: AT (PCUI), 2: AT (Modem), 3: QMI, 4: ADB > > T: Bus=02 Lev=02 Prnt=02 Port=05 Cnt=01 Dev#= 3 Spd=480 MxCh= 0 > D: Ver= 2.01 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 > P: Vendor=19d2 ProdID=1275 Rev=f0.00 > S: Manufacturer=ZTE,Incorporated > S: Product=ZTE Technologies MSM > S: SerialNumber=P685M510ZTED0000CP&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&0 > C:* #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA > I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option > E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms > E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms > I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option > E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms > E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms > E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms > I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option > E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms > E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms > E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms > I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan > E: Ad=87(I) Atr=03(Int.) MxPS= 8 Ivl=32ms > E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms > E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms > I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none) > E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms > E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms > > Cc: Johan Hovold <johan@kernel.org> > Cc: Bjørn Mork <bjorn@mork.no> > Signed-off-by: Lech Perczak <lech.perczak@gmail.com> > --- > v3: No changes to contents of the patch. > Resend as separate patch to be merged through USB subsystem, the > following patch for qmi_wwan will go through netdev tree after this is > merged. > Updated commit description, added note about possible qmi_wwan conflict. > > v2: Blacklist ports 3-4 and simplify device ID, > as suggested by Lars Melin. Now applied for -next, thanks. Johan
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 3fe959104311..485d07df8f69 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1567,7 +1567,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1272, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1273, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1274, 0xff, 0xff, 0xff) }, - { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1275, 0xff, 0xff, 0xff) }, + { USB_DEVICE(ZTE_VENDOR_ID, 0x1275), .driver_info = RSVD(3) | RSVD(4) }, /* ZTE P685M */ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1276, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1277, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1278, 0xff, 0xff, 0xff) },
This patch prepares for qmi_wwan driver support for the device. Previously "option" driver mapped itself to interfaces 0 and 3 (matching ff/ff/ff), while interface 3 is in fact a QMI port. Interfaces 1 and 2 (matching ff/00/00) expose AT commands, and weren't supported previously at all. Without this patch, a possible conflict would exist if device ID was added to qmi_wwan driver for interface 3. Update and simplify device ID to match interfaces 0-2 directly, to expose QCDM (0), PCUI (1), and modem (2) ports and avoid conflict with QMI (3), and ADB (4). The modem is used inside ZTE MF283+ router and carriers identify it as such. Interface mapping is: 0: QCDM, 1: AT (PCUI), 2: AT (Modem), 3: QMI, 4: ADB T: Bus=02 Lev=02 Prnt=02 Port=05 Cnt=01 Dev#= 3 Spd=480 MxCh= 0 D: Ver= 2.01 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=19d2 ProdID=1275 Rev=f0.00 S: Manufacturer=ZTE,Incorporated S: Product=ZTE Technologies MSM S: SerialNumber=P685M510ZTED0000CP&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&0 C:* #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan E: Ad=87(I) Atr=03(Int.) MxPS= 8 Ivl=32ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none) E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms Cc: Johan Hovold <johan@kernel.org> Cc: Bjørn Mork <bjorn@mork.no> Signed-off-by: Lech Perczak <lech.perczak@gmail.com> --- v3: No changes to contents of the patch. Resend as separate patch to be merged through USB subsystem, the following patch for qmi_wwan will go through netdev tree after this is merged. Updated commit description, added note about possible qmi_wwan conflict. v2: Blacklist ports 3-4 and simplify device ID, as suggested by Lars Melin. drivers/usb/serial/option.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)