3G Issue on imx6q

[blurencetin]

Hi all,

We are porting Huawei MU509 3G Module to our 6q board on Android JB 4.3

After we add power-on time sequence and set "Wakein" to high, the module works well,  ttyUSB devices could be detected and baseband version is correct.

But, when we plugin sim-card, baseband version shows "unknown", network/signal strength/mobile network type are incorrect.

We checked the log, seems MU509 goes to  “selective suspend” , then resume, and changing the state endlessly.

Anyone meet such issue? any suggestion for it?

Here's the log and huawei option.c

================================================================

drivers/usb/serial/option.c: option_write_room: 12288

drivers/usb/serial/option.c: option_write: endpoint 1 buf 1

drivers/usb/serial/option.c: option_outdat_callback

drivers/usb/serial/option.c: option_outdat_callback

fxz-option_suspend entered

fxz-option_suspend entered

fxz-option_suspend entered

drivers/usb/serial/option.c: option_indat_callback: d631f7e0

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_indat_callback: d631f760

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_indat_callback: d631f6e0

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_indat_callback: d631f660

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_instat_callback

drivers/usb/serial/option.c: option_instat_callback: urb d631f860 port d7ace800 has data d63d1860

option: option_instat_callback: error -2

fxz-option_resume entered

drivers/usb/serial/option.c: Submitted interrupt URB for port 0 (result 0)

fxz-option_resume entered

drivers/usb/serial/option.c: option_resume: No interrupt URB for port 0

fxz-option_resume entered

drivers/usb/serial/option.c: option_resume: No interrupt URB for port 0

drivers/usb/serial/option.c: option_indat_callback: d631f7e0

drivers/usb/serial/option.c: option_outdat_callback

drivers/usb/serial/option.c: option_outdat_callback

drivers/usb/serial/option.c: option_indat_callback: d631f660

drivers/usb/serial/option.c: option_instat_callback

drivers/usb/serial/option.c: option_instat_callback: urb d631f860 port d7ace800 has data d63d1860

drivers/usb/serial/option.c: option_instat_callback: signal x3

drivers/usb/serial/option.c: option_dtr_rts

drivers/usb/serial/option.c: option_send_setup

drivers/usb/serial/option.c: option_send_setup

drivers/usb/serial/option.c: option_chars_in_buffer: 0

drivers/usb/serial/option.c: option_set_termios

drivers/usb/serial/option.c: option_send_setup

drivers/usb/serial/option.c: option_dtr_rts

drivers/usb/serial/option.c: option_send_setup

drivers/usb/serial/option.c: option_chars_in_buffer: 0

drivers/usb/serial/option.c: option_chars_in_buffer: 0

drivers/usb/serial/option.c: option_instat_callback

drivers/usb/serial/option.c: option_instat_callback: urb d631f860 port d7ace800 has data d63d1860

drivers/usb/serial/option.c: option_instat_callback: signal x3

fxz-option_suspend entered

fxz-option_suspend entered

fxz-option_suspend entered

drivers/usb/serial/option.c: option_indat_callback: d631f7e0

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_indat_callback: d631f760

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_indat_callback: d631f6e0

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_indat_callback: d631f660

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_instat_callback

drivers/usb/serial/option.c: option_instat_callback: urb d631f860 port d7ace800 has data d63d1860

option: option_instat_callback: error -2

drivers/usb/serial/option.c: option_send_setup

drivers/usb/serial/option.c: option_chars_in_buffer: 0

drivers/usb/serial/option.c: option_set_termios

drivers/usb/serial/option.c: option_send_setup

drivers/usb/serial/option.c: option_write_room: 16384

drivers/usb/serial/option.c: option_write: endpoint 1 buf 0

drivers/usb/serial/option.c: option_write_room: 12288

drivers/usb/serial/option.c: option_write: endpoint 1 buf 1

fxz-option_resume entered

drivers/usb/serial/option.c: Submitted interrupt URB for port 0 (result 0)

fxz-option_resume entered

drivers/usb/serial/option.c: option_outdat_callback

drivers/usb/serial/option.c: option_outdat_callback

drivers/usb/serial/option.c: option_resume: No interrupt URB for port 0

fxz-option_resume entered

drivers/usb/serial/option.c: option_resume: No interrupt URB for port 0

fxz-option_suspend entered

fxz-option_suspend entered

fxz-option_suspend entered

drivers/usb/serial/option.c: option_indat_callback: d631f7e0

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_indat_callback: d631f760

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_indat_callback: d631f6e0

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_indat_callback: d631f660

drivers/usb/serial/option.c: option_indat_callback: nonzero status: -2 on endpoint 02.

drivers/usb/serial/option.c: option_instat_callback

drivers/usb/serial/option.c: option_instat_callback: urb d631f860 port d7ace800 has data d63d1860

option: option_instat_callback: error -2

Original Attachment has been moved to: option.c.zip

[weidong_sun]

Hello blurence ,

      I checked hardware documents of Huawei MU509, I feel the problems you encountered seem to be related to power up sequence, corresponding pins are following:

POWER

WAKEUP_IN

RESET

POWER_ON_OFF

Correct power up sequence is :

POWER-->POWER_ON_OFF(pull it down to LOW and hold 0.5s--1s)-->WAKEUP_IN(pull it up to HIGH, and delay 1s---3s)--->RESET(pull it down to LOW and hold 0.3s--1s, then pull it up to HIGH)

Please modify power up sequence and try again!  If above advice can't resolve your issue, please contact Huawei or distributer and get help !

Regards,

Weidong

[blurencetin]

Thanks Weidong.

The power up sequence tips is useful, but not the root cause.

I updated the option.c/usb-wwan.c that provided by Huawei, now it works well.

Many thanks!