Hi Simon,

On 09/06/2012 03:22 AM, Lemoine Simon wrote:
> Hi,
>
> I work on Sierra wireless MC8092 card, with ofono and connman and I have
> three questions :
>
> 1/
>
> I have post on this list 3 weeks ago, about Sierra Wireless MC8092 card,
> http://lists.ofono.org/pipermail/ofono/2012-August/013450.html .
> Following your advices I have used at_util_sim_state_query_new as in
> zte.c and it has worked well.
>
> The following patch shows my changes :
>
> --- a/plugins/sierra.c	2012-09-06 09:03:15.842101127 +0200
> +++ b/plugins/sierra.c	2012-09-06 09:03:03.788099867 +0200
> @@ -48,6 +48,7 @@
>
>   struct sierra_data {
>   	GAtChat *modem;
> +	struct at_util_sim_state_query *sim_state_query;
>   };
>
>   static void sierra_debug(const char *str, void *user_data)
> @@ -119,6 +120,17 @@
>   	return chat;
>   }
>
> +static void sim_state_cb(gboolean present, gpointer user_data)
> +{
> +	struct ofono_modem *modem = user_data;
> +	struct sierra_data *data = ofono_modem_get_data(modem);
> +
> +	at_util_sim_state_query_free(data->sim_state_query);
> +	data->sim_state_query = NULL;
> +
> +	ofono_modem_set_powered(modem, TRUE);
> +}
> +
>   static void cfun_enable(gboolean ok, GAtResult *result, gpointer
> user_data)
>   {
>   	struct ofono_modem *modem = user_data;
> @@ -129,9 +141,12 @@
>   	if (!ok) {
>   		g_at_chat_unref(data->modem);
>   		data->modem = NULL;
> +		
> +		return;
>   	}
> -
> -	ofono_modem_set_powered(modem, ok);
> +	data->sim_state_query = at_util_sim_state_query_new(data->modem,
> +						2, 20, sim_state_cb, modem,
> +						NULL);
>   }
>
>   static int sierra_enable(struct ofono_modem *modem)
>
> Are my corrections correct?

That looks reasonable yes.

>
> 2/
> As I have explained in post
> http://lists.ofono.org/pipermail/ofono/2012-August/013460.html I losted
> the IP address just after I obtained it, it comes from connman which
> fail with the message "Invalid index and/or address".
> To workaround this issue, I have change the Sierra modem handling tu use
> it as an atmodem, see below :
>
> --- a/plugins/sierra.c	2012-09-06 09:36:53.478312137 +0200
> +++ b/plugins/sierra.c	2012-09-06 09:03:03.788099867 +0200
> @@ -260,7 +260,7 @@
>   	ofono_netreg_create(modem, 0, "atmodem", data->modem);
>
>   	gprs = ofono_gprs_create(modem, 0, "atmodem", data->modem);
> -	gc = ofono_gprs_context_create(modem, 0, "atmodem", data->modem);
> +	gc = ofono_gprs_context_create(modem, 0, "swmodem", data->modem);
>
>   	if (gprs&&  gc)
>   		ofono_gprs_add_context(gprs, gc);
>
> It works well, I have an internet connection, but I don't really know
> what are the effects of my change (so I don't like it). Does anybody can
> explain me how does swmodem work , and why does connman return "Invalid
> index and/or address"?

atmodem driver for gprs_context uses TUN and talks PPP.  Maybe your tun 
module was not being loaded?

The swmodem driver is Sierra specific and uses the high-speed interface 
(provided by a kernel module).  This is probably what you want.

>
> 3/
> I have a last issue, when I boot my system the card is not handle by
> ofono, I have to reset the Sierra Wireless card to ofono works with it.
> I have seen in the log that udevng plugins detects the card but ofono
> doesn't handle it (see the log below) . If you have any ideas or
> suggestions to solve my issue, feel free to contact me.
>
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.130000] usb usb2:
> uevent
> Sep  6 05:34:14 dunamux daemon.debug ofonod[530]:
> plugins/udevng.c:check_usb_device() hub
> [(null):(null)]
> Sep  6 05:34:14 dunamux daemon.debug ofonod[530]:
> plugins/udevng.c:check_usb_device() hub
> [(null):(null)]
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.150000] usb 2-0:1.0:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.150000] usb usb2:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.150000] usb usb1:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.150000] usb 1-0:1.0:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.150000] usb usb1:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.150000] usb 1-2:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.150000] usb usb1:
> uevent
> Sep  6 05:34:14 dunamux daemon.debug ofonod[530]:
> plugins/udevng.c:check_usb_device() usb
> [(null):(null)]
> Sep  6 05:34:14 dunamux daemon.debug ofonod[530]:
> plugins/udevng.c:check_usb_device() usb
> [(null):(null)]
> Sep  6 05:34:14 dunamux daemon.debug ofonod[530]:
> plugins/udevng.c:check_usb_device() sierra
> [(null):(null)]
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.170000] usb 1-2.4:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.170000] usb 1-2:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.170000] usb 1-2.4:1.0:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.170000] usb 1-2.4:
> uevent
> Sep  6 05:34:14 dunamux daemon.debug ofonod[530]:
> plugins/udevng.c:check_usb_device() sierra [(null):(null)]
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.190000] usb 1-2:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.190000] usb usb1:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.190000] usb 1-2.4:1.1:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.190000] usb 1-2.4:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.190000] usb 1-2:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.190000] usb usb1:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.190000] usb 1-2.4:1.2:
> uevent
> Sep  6 05:34:14 dunamux daemon.debug ofonod[530]:
> plugins/udevng.c:check_usb_device() sierra
> [(null):(null)]
> Sep  6 05:34:14 dunamux daemon.debug ofonod[530]:
> plugins/udevng.c:check_usb_device() sierra
> [(null):(null)]
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.210000] usb 1-2.4:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.210000] usb 1-2:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.210000] usb usb1:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.210000] usb 1-2.4:1.3:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.210000] usb 1-2.4:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.210000] usb 1-2:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.210000] usb usb1:
> uevent
> Sep  6 05:34:14 dunamux daemon.debug ofonod[530]:
> plugins/udevng.c:check_usb_device() sierra_net
> [(null):(null)]
> Sep  6 05:34:14 dunamux daemon.debug ofonod[530]:
> plugins/udevng.c:check_usb_device() hub
> [(null):(null)]
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.230000] usb 1-2.4:1.7:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.230000] usb 1-2.4:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.230000] usb 1-2:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.230000] usb usb1:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.230000] usb 1-2:1.0:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.230000] usb 1-2:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.410000] usb 1-2.4:1.0:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.410000] usb 1-2.4:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.410000] usb 1-2.4:1.1:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.410000] usb 1-2.4:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.410000] usb 1-2.4:1.2:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.430000] usb 1-2.4:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.430000] usb 1-2.4:1.3:
> uevent
> Sep  6 05:34:14 dunamux user.debug kernel: [    5.430000] usb 1-2.4:
> uevent

What do you do to make oFono recognize it?  Likely the card is being 
recognized first as a mass storage device.  Do you have the latest 
usb_modeswitch installed?

>
> Thank you for your help.
> Simon Lemoine
>

Regards,
-Denis