Re: [PATCH] doc: Add modem Type property
Hi Gustavo On 02/03/2011 11:25 AM, ext Gustavo F. Padovan wrote: Hi Dara, * Dara Spieker-Doyledara.spieker-do...@nokia.com [2011-01-20 14:48:57 -0800]: Add support for providing the type of the attached modem device including GSM (3GPP), CDMA (3GPP2) and Bluetooth HFP. --- doc/modem-api.txt | 13 + 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/doc/modem-api.txt b/doc/modem-api.txt index 45043b0..fe806c8 100644 --- a/doc/modem-api.txt +++ b/doc/modem-api.txt @@ -82,6 +82,19 @@ Properties boolean Powered [readwrite] This is usually obtained by using the +CGSN AT command. + string Type [readonly, optional, experimental] + + String representing the type of the modem device. + + The possible values are: + gsm Modem supports one or more of the 3GPP + family of technologies including GSM, + EDGE, UMTS, HSPA, LTE. + cdma Modem supports one or more of the 3GPP2 + family of technologies including CDMA 1x, + EVDO. + hfp Bluetooth hands-free profile (HFP) modem I think that this can also help with ConnMan, currently it enables all modems, even the hfp one, which is wrong. Yes, this is what we suspect as well and had a discussion about it in the IRC recently. We are currently preparing a CDMA ConnMan patch to establish if it will further justify supporting this interface from a CDMA perspective. Cheers Dara ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
Re: [PATCH] doc: Add modem Type property
Hi Dara, On 01/20/2011 04:48 PM, Dara Spieker-Doyle wrote: Add support for providing the type of the attached modem device including GSM (3GPP), CDMA (3GPP2) and Bluetooth HFP. --- doc/modem-api.txt | 13 + 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/doc/modem-api.txt b/doc/modem-api.txt index 45043b0..fe806c8 100644 --- a/doc/modem-api.txt +++ b/doc/modem-api.txt @@ -82,6 +82,19 @@ Properties boolean Powered [readwrite] This is usually obtained by using the +CGSN AT command. + string Type [readonly, optional, experimental] + + String representing the type of the modem device. + + The possible values are: + gsm Modem supports one or more of the 3GPP + family of technologies including GSM, + EDGE, UMTS, HSPA, LTE. + cdma Modem supports one or more of the 3GPP2 + family of technologies including CDMA 1x, + EVDO. + hfp Bluetooth hands-free profile (HFP) modem + So one pointed question: How are we planning to support dual-mode devices with this property? I believe during the CDMA workshop we decided that the clients should simply look at the set of interfaces, not a semi-static property... Regards, -Denis ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
Re: [PATCH] doc: Add modem Type property
Hi Denis, * Denis Kenzior denk...@gmail.com [2011-01-21 14:15:46 -0600]: Hi Dara, On 01/20/2011 04:48 PM, Dara Spieker-Doyle wrote: Add support for providing the type of the attached modem device including GSM (3GPP), CDMA (3GPP2) and Bluetooth HFP. --- doc/modem-api.txt | 13 + 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/doc/modem-api.txt b/doc/modem-api.txt index 45043b0..fe806c8 100644 --- a/doc/modem-api.txt +++ b/doc/modem-api.txt @@ -82,6 +82,19 @@ Properties boolean Powered [readwrite] This is usually obtained by using the +CGSN AT command. + string Type [readonly, optional, experimental] + + String representing the type of the modem device. + + The possible values are: + gsm Modem supports one or more of the 3GPP + family of technologies including GSM, + EDGE, UMTS, HSPA, LTE. + cdma Modem supports one or more of the 3GPP2 + family of technologies including CDMA 1x, + EVDO. + hfp Bluetooth hands-free profile (HFP) modem + So one pointed question: How are we planning to support dual-mode devices with this property? I believe during the CDMA workshop we decided that the clients should simply look at the set of interfaces, not a semi-static property... We can have a value that is gsm cdma. This fits for now, but won't scale. And this list won't increase in the near future I think. -- Gustavo F. Padovan http://profusion.mobi ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
Re: [PATCH] doc: Add modem Type property
Hi Denis, On 01/21/2011 12:15 PM, ext Denis Kenzior wrote: Hi Dara, On 01/20/2011 04:48 PM, Dara Spieker-Doyle wrote: Add support for providing the type of the attached modem device including GSM (3GPP), CDMA (3GPP2) and Bluetooth HFP. --- doc/modem-api.txt | 13 + 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/doc/modem-api.txt b/doc/modem-api.txt index 45043b0..fe806c8 100644 --- a/doc/modem-api.txt +++ b/doc/modem-api.txt @@ -82,6 +82,19 @@ Properties boolean Powered [readwrite] This is usually obtained by using the +CGSN AT command. + string Type [readonly, optional, experimental] + + String representing the type of the modem device. + + The possible values are: + gsm Modem supports one or more of the 3GPP + family of technologies including GSM, + EDGE, UMTS, HSPA, LTE. + cdma Modem supports one or more of the 3GPP2 + family of technologies including CDMA 1x, + EVDO. + hfp Bluetooth hands-free profile (HFP) modem + So one pointed question: How are we planning to support dual-mode devices with this property? I believe during the CDMA workshop we decided that the clients should simply look at the set of interfaces, not a semi-static property... We understand that the decision during the CDMA workshop but as we explained one use case in the cover letter (http://lists.ofono.org/pipermail/ofono/2011-January/007890.html) for this RFC, there will be cases where atom's D-Bus I/F is not suitable (or as a reliable way) for telling what is current mode (CDMA or GSM). E.g., in the case of retrieving serial number from modem. Currently both CDMA and GSM shares the same I/F (ofono.org.modem) rather than having separate (ofono.org.cdma.modem). And, further if no other atom has been instantiated, then, there will be no other way to tell which mode (CDMA or GSM) the modem is. And, further for displaying serial number, upper layer will need to know it is CDMA or GSM. In case of CDMA, the serial number is MEID and GSM it is IMEI. As explained in cover letter, we anticipate more cases like this. Regards, -Denis ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono Regards Lei ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
Re: [PATCH] doc: Add modem Type property
Hi Gustavo and Denis On 01/21/2011 12:25 PM, ext Gustavo F. Padovan wrote: Hi Denis, * Denis Kenziordenk...@gmail.com [2011-01-21 14:15:46 -0600]: Hi Dara, On 01/20/2011 04:48 PM, Dara Spieker-Doyle wrote: Add support for providing the type of the attached modem device including GSM (3GPP), CDMA (3GPP2) and Bluetooth HFP. --- doc/modem-api.txt | 13 + 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/doc/modem-api.txt b/doc/modem-api.txt index 45043b0..fe806c8 100644 --- a/doc/modem-api.txt +++ b/doc/modem-api.txt @@ -82,6 +82,19 @@ Properties boolean Powered [readwrite] This is usually obtained by using the +CGSN AT command. + string Type [readonly, optional, experimental] + + String representing the type of the modem device. + + The possible values are: + gsm Modem supports one or more of the 3GPP + family of technologies including GSM, + EDGE, UMTS, HSPA, LTE. + cdma Modem supports one or more of the 3GPP2 + family of technologies including CDMA 1x, + EVDO. + hfp Bluetooth hands-free profile (HFP) modem + So one pointed question: How are we planning to support dual-mode devices with this property? I believe during the CDMA workshop we decided that the clients should simply look at the set of interfaces, not a semi-static property... We can have a value that is gsm cdma. This fits for now, but won't scale. And this list won't increase in the near future I think. This is along the lines of my thoughts for future support of a multi-mode device- but I left it out for now as a value as it's future work. Denis - Lei's about to pop in and answer your questions as he was actually at the workshop! :) Cheers Dara ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
Re: [PATCH] doc: Add modem Type property
Hi Denis, On 01/21/2011 12:15 PM, ext Denis Kenzior wrote: Hi Dara, On 01/20/2011 04:48 PM, Dara Spieker-Doyle wrote: Add support for providing the type of the attached modem device including GSM (3GPP), CDMA (3GPP2) and Bluetooth HFP. --- doc/modem-api.txt | 13 + 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/doc/modem-api.txt b/doc/modem-api.txt index 45043b0..fe806c8 100644 --- a/doc/modem-api.txt +++ b/doc/modem-api.txt @@ -82,6 +82,19 @@ Properties boolean Powered [readwrite] This is usually obtained by using the +CGSN AT command. + string Type [readonly, optional, experimental] + + String representing the type of the modem device. + + The possible values are: + gsm Modem supports one or more of the 3GPP + family of technologies including GSM, + EDGE, UMTS, HSPA, LTE. + cdma Modem supports one or more of the 3GPP2 + family of technologies including CDMA 1x, + EVDO. + hfp Bluetooth hands-free profile (HFP) modem + So one pointed question: How are we planning to support dual-mode devices with this property? I believe during the CDMA workshop we decided that the clients should simply look at the set of interfaces, not a semi-static property... Also, it is my understanding that the reason we create org.ofono.cdma interfaces during CDMA workshop are to make sure CDMA interfaces and logics do not pollute GSM interfaces and logics which are very different anyway. We have not ruled out the case where there may be shared interfaces as we see a need. Currently, org.ofono.modem is this case. Unless we would go ahead creating org.ofono.cdma.modem, we discussed that option internally but feel that is less preferable than the Type property we proposed here. Regards, -Denis ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono Regards, -Lei ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
Re: [PATCH] doc: Add modem Type property
Hi Lei, +string Type [readonly, optional, experimental] + +String representing the type of the modem device. + +The possible values are: +gsm Modem supports one or more of the 3GPP +family of technologies including GSM, +EDGE, UMTS, HSPA, LTE. +cdma Modem supports one or more of the 3GPP2 +family of technologies including CDMA 1x, +EVDO. +hfpBluetooth hands-free profile (HFP) modem + So one pointed question: How are we planning to support dual-mode devices with this property? I believe during the CDMA workshop we decided that the clients should simply look at the set of interfaces, not a semi-static property... We understand that the decision during the CDMA workshop but as we explained one use case in the cover letter (http://lists.ofono.org/pipermail/ofono/2011-January/007890.html) for this RFC, there will be cases where atom's D-Bus I/F is not suitable (or as a reliable way) for telling what is current mode (CDMA or GSM). E.g., in the case of retrieving serial number from modem. Currently both CDMA and GSM shares the same I/F (ofono.org.modem) rather than having separate (ofono.org.cdma.modem). And, further if no other atom has been instantiated, then, there will be no other way to tell which mode (CDMA or GSM) the modem is. And, further for displaying serial number, upper layer will need to know it is CDMA or GSM. In case of CDMA, the serial number is MEID and GSM it is IMEI. As explained in cover letter, we anticipate more cases like this. So let us say I have a dual-mode modem. Are there now two serial numbers? One for MEID and one for IMEI? Are there now two Manufacturers? Two Revisions? Regards, -Denis ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
Re: [PATCH] doc: Add modem Type property
Hi Denis, On 01/21/2011 01:04 PM, ext Denis Kenzior wrote: Hi Lei, +string Type [readonly, optional, experimental] + +String representing the type of the modem device. + +The possible values are: +gsm Modem supports one or more of the 3GPP +family of technologies including GSM, +EDGE, UMTS, HSPA, LTE. +cdma Modem supports one or more of the 3GPP2 +family of technologies including CDMA 1x, +EVDO. +hfpBluetooth hands-free profile (HFP) modem + So one pointed question: How are we planning to support dual-mode devices with this property? I believe during the CDMA workshop we decided that the clients should simply look at the set of interfaces, not a semi-static property... We understand that the decision during the CDMA workshop but as we explained one use case in the cover letter (http://lists.ofono.org/pipermail/ofono/2011-January/007890.html) for this RFC, there will be cases where atom's D-Bus I/F is not suitable (or as a reliable way) for telling what is current mode (CDMA or GSM). E.g., in the case of retrieving serial number from modem. Currently both CDMA and GSM shares the same I/F (ofono.org.modem) rather than having separate (ofono.org.cdma.modem). And, further if no other atom has been instantiated, then, there will be no other way to tell which mode (CDMA or GSM) the modem is. And, further for displaying serial number, upper layer will need to know it is CDMA or GSM. In case of CDMA, the serial number is MEID and GSM it is IMEI. As explained in cover letter, we anticipate more cases like this. So let us say I have a dual-mode modem. Are there now two serial numbers? One for MEID and one for IMEI? Are there now two Manufacturers? Two Revisions? Try to clarify what you try to ask first. Let's start with the dual-mode case where the modem is integrated modem (one piece of HW) where it supports both CDMA and GSM. Then, there is case where the phone actually has both MEID and IMEI. And, these two numbers are actually the same (note, per IMEI's assignment there is a pre-arranged segment for this kind of world phone). And, in which case, one manufacture, one revision. Per the other thread, in which case the Type will be something like gsm_cdma. Of course, there can be case where two physical modems are in the device in which case there will be two separate serial numbers and two manufacturers and revisions. I am assuming you are not asking for this case. Again, the problem we try to solve is single mode case. Regards, -Denis Regards, - Lei ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
Re: [PATCH] doc: Add modem Type property
Hi Lei, On 01/21/2011 03:48 PM, Lei Yu wrote: Hi Denis, On 01/21/2011 01:04 PM, ext Denis Kenzior wrote: Hi Lei, +string Type [readonly, optional, experimental] + +String representing the type of the modem device. + +The possible values are: +gsm Modem supports one or more of the 3GPP +family of technologies including GSM, +EDGE, UMTS, HSPA, LTE. +cdma Modem supports one or more of the 3GPP2 +family of technologies including CDMA 1x, +EVDO. +hfpBluetooth hands-free profile (HFP) modem + So one pointed question: How are we planning to support dual-mode devices with this property? I believe during the CDMA workshop we decided that the clients should simply look at the set of interfaces, not a semi-static property... We understand that the decision during the CDMA workshop but as we explained one use case in the cover letter (http://lists.ofono.org/pipermail/ofono/2011-January/007890.html) for this RFC, there will be cases where atom's D-Bus I/F is not suitable (or as a reliable way) for telling what is current mode (CDMA or GSM). E.g., in the case of retrieving serial number from modem. Currently both CDMA and GSM shares the same I/F (ofono.org.modem) rather than having separate (ofono.org.cdma.modem). And, further if no other atom has been instantiated, then, there will be no other way to tell which mode (CDMA or GSM) the modem is. And, further for displaying serial number, upper layer will need to know it is CDMA or GSM. In case of CDMA, the serial number is MEID and GSM it is IMEI. As explained in cover letter, we anticipate more cases like this. So let us say I have a dual-mode modem. Are there now two serial numbers? One for MEID and one for IMEI? Are there now two Manufacturers? Two Revisions? Try to clarify what you try to ask first. Let's start with the dual-mode case where the modem is integrated modem (one piece of HW) where it supports both CDMA and GSM. Then, there is case where the phone actually has both MEID and IMEI. And, these two numbers are actually the same (note, per IMEI's assignment there is a pre-arranged segment for this kind of world phone). And, in which case, one manufacture, one revision. Per the other thread, in which case the Type will be something like gsm_cdma. So how does the modem type help you here if you have 'gsm_cdma'? Is the modem giving you a MEID? An IMEI? I'm not convinced the Type helps you in any way. It might help you for HFP, but certainly not the dual mode case. Of course, there can be case where two physical modems are in the device in which case there will be two separate serial numbers and two manufacturers and revisions. I am assuming you are not asking for this case. Yes, I'm ignoring the true dual-mode dual-radio case right now. Regards, -Denis ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
Re: [PATCH] doc: Add modem Type property
Hi Denis, On 01/21/2011 02:04 PM, ext Denis Kenzior wrote: Hi Lei, On 01/21/2011 03:48 PM, Lei Yu wrote: Hi Denis, On 01/21/2011 01:04 PM, ext Denis Kenzior wrote: Hi Lei, +string Type [readonly, optional, experimental] + +String representing the type of the modem device. + +The possible values are: +gsm Modem supports one or more of the 3GPP +family of technologies including GSM, +EDGE, UMTS, HSPA, LTE. +cdma Modem supports one or more of the 3GPP2 +family of technologies including CDMA 1x, +EVDO. +hfpBluetooth hands-free profile (HFP) modem + So one pointed question: How are we planning to support dual-mode devices with this property? I believe during the CDMA workshop we decided that the clients should simply look at the set of interfaces, not a semi-static property... We understand that the decision during the CDMA workshop but as we explained one use case in the cover letter (http://lists.ofono.org/pipermail/ofono/2011-January/007890.html) for this RFC, there will be cases where atom's D-Bus I/F is not suitable (or as a reliable way) for telling what is current mode (CDMA or GSM). E.g., in the case of retrieving serial number from modem. Currently both CDMA and GSM shares the same I/F (ofono.org.modem) rather than having separate (ofono.org.cdma.modem). And, further if no other atom has been instantiated, then, there will be no other way to tell which mode (CDMA or GSM) the modem is. And, further for displaying serial number, upper layer will need to know it is CDMA or GSM. In case of CDMA, the serial number is MEID and GSM it is IMEI. As explained in cover letter, we anticipate more cases like this. So let us say I have a dual-mode modem. Are there now two serial numbers? One for MEID and one for IMEI? Are there now two Manufacturers? Two Revisions? Try to clarify what you try to ask first. Let's start with the dual-mode case where the modem is integrated modem (one piece of HW) where it supports both CDMA and GSM. Then, there is case where the phone actually has both MEID and IMEI. And, these two numbers are actually the same (note, per IMEI's assignment there is a pre-arranged segment for this kind of world phone). And, in which case, one manufacture, one revision. Per the other thread, in which case the Type will be something like gsm_cdma. So how does the modem type help you here if you have 'gsm_cdma'? Is the modem giving you a MEID? An IMEI? I'm not convinced the Type helps you in any way. It might help you for HFP, but certainly not the dual mode case. First, our original use case is really for a single mode case, not dual mode. Please see our cover letter in our original RFC. Please do let us know if you agree or disagree whether there is a problem needing to be solved for single mode case. Second, in case of the example I gave above, modem will provide one serial number which is both MEID and IMEI since they are identical. In which case based on Type setting to cdma_gsm, it will be upper layer's choice to do the processing. E.g., upper layer can do something like: MEID/IMEI: xxx. Of course, there can be case where two physical modems are in the device in which case there will be two separate serial numbers and two manufacturers and revisions. I am assuming you are not asking for this case. Yes, I'm ignoring the true dual-mode dual-radio case right now. Regards, -Denis Regards, -Lei ___ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
