Gsmd/zh tw
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它是由名為 "_opers_" 所執行。 | 它是由名為 "_opers_" 所執行。 | ||
− | == | + | == 目前所欠缺的 == |
− | ( | + | (如果你遺失了某些功能,請將這些項目加下以下的清單) |
− | * | + | * 話機相關功能 |
− | ** | + | ** 飛航模式/gsmd 暫停 (它將會在gsmd外被執行,透過使用runlevels / upstart) |
− | ** | + | ** 設定緊急呼叫,即使裝置沒有安裝SIM卡 |
− | ** | + | ** 取得製造商/型號/修訂版/IMEI |
− | ** | + | ** 能通知使用者SIM卡未被鎖住的功能 (或者能自動的反鎖它) |
− | * | + | * 簡訊相關的功能 |
− | ** | + | ** 傳送簡訊 |
− | ** | + | ** 接收簡訊 |
− | ** | + | ** 取得IMSI |
− | ** | + | ** 存取SIM卡,儲存簡訊到SIM卡 - ''不再有遺失的狀況 - 參考輔助說明'' |
− | * SIM | + | * SIM 相關功能 |
− | ** | + | ** 讀取電話簿輸入 - ''不再有遺失的狀況 - 參考輔助說明'' |
− | ** | + | ** 寫入電話簿 - ''不再有遺失的狀況 - 參考輔助說明'' |
− | * | + | * GPRS相關功能 |
− | ** | + | ** 設定GPRS連結,透過分散的TS07.10使用DLC of TS07.10 多路傳輸 |
− | * | + | * gsmd內部基礎架設 |
** fine-grained event subscriptions (rather than wildcard-subscribe) | ** fine-grained event subscriptions (rather than wildcard-subscribe) | ||
** possibility to specify log-level from command line | ** possibility to specify log-level from command line |
Revision as of 11:08, 19 May 2008
gsmd 是在Openmoko手機上執行的 GSM背景程式。它用來管理話機中傳統的'通話' 領域 (聲音/簡訊/gprs 通訊連結)。
你可以在這裡找到進行中的進階技術描述及API文件。
Contents |
Usage
On the phone
當以/etc/init.d/gsmd script啟動時,gsmd 通常會以背景程式執行,在這個案例當中gsmd會輸出偵錯訊息到 "/tmp/gsm.log"檔案中 (stdout及stderr在這裡則被重新導引).
針對偵錯目地,gsmd可以在前景模式下執行,可以被使用的選項如下:
> gsmd --help gsmd - (C) 2006 by Harald Welte <laforge@gnumonks.org> This program is FREE SOFTWARE under the terms of GNU GPL Usage: -v --version 顯示程式版本 -d --daemon Deamonize -h --help 顯示輔助訊息 -p dev --device dev 指定串列裝置為作用中裝置 -s spd --speed spd 指定bps速度 (9600,38400,115200,...) -F --hwflow 硬體流量控制(RTS/CTS) -L --leak-report Leak Report of talloc memory allocator -l file --logfile file Specify a logfile to log to
如果你的GSM 數據機連接到ttySAC0 (如 Neo1973), 使用如下指令啟動它:
> gsmd -p /dev/ttySAC0 -s 115200 -F
(baud rate可被modem自動偵測)
從host PC
使用最近的 uboot (svn > r2885),gsm modem可以電源啟動,並且從uboot本身連接到uboot的串列控制埠。然後,允許host PC直接與數據機互動。關於host pc執行gsmd 的文章,你可以在這裡找到。
libgsmd
libgsmd 是C 語言API中的程式庫。這個程式庫的程式可以被用在手機上,如打電話、接收電話、註冊為網路一員...等。
libgsmd-tool
libgsmd-tool 是可以用來詮釋libgsmd API的小型展示應用程式。
Usage
libgsmd-tool 有多重模式。
Usage of shell mode
Shell 模式針對語音通話提供一個簡單的text-based 指令界面。
shell 模式可以利用下面的指令啟動
libgsmd-tool -m shell
以下即為它的實做範例:
> src/util/libgsmd-tool -m shell libgsm-tool - (C) 2006 by Harald Welte This program is Free Software and has ABSOLUTELY NO WARRANTY ? A Answer incoming call D Dial outgoing number H Hangup call O Power On o Power Off r Register to network R Register to given operator (R=number) U Unregister from netowrk P Print current operator L Detect available operators Q Read signal quality T Send DTMF Tone n Print subscriber numbers pd PB Delete (pb=index) pr PB Read (pr=index) prr PB Read Range (prr=index1,index2) pf PB Find (pf=indtext) pw PB Write (pw=index,number,text) ps PB Support pm PB Memory pp PB Set Memory (pp=storage) pRr Retrieve Readrg Records pRf Retrieve Find Records sd SMS Delete (sd=index,delflg) sl SMS List (sl=stat) sr SMS Read (sr=index) ss SMS Send (ss=ask_ds,number,text|["text"]) sw SMS Write (sw=stat,number,text) sm SMS Storage stats sM SMS Set preferred storage (sM=mem1,mem2,mem3) sc SMS Show Service Centre sC SMS Set Service Centre (sC=number) q Quit O # EVENT: PIN request (type=1) Please enter PIN: 6582 r # EVENT: Netreg searching for network EVENT: Netreg registered (home network) D03024033902 # Dial 03024033902 EVENT: Call Progress: UNKNOWN EVENT: Call Progress: PROCEED EVENT: Call Progress: SYNC EVENT: Call Progress: ALERT H # Hangup EVENT: Call Progress: DISCONNECT EVENT: Call Progress: RELEASE EVENT: Incoming call type=2! EVENT: Incoming call clip=`"03024033902"' EVENT: Incoming call type=2! A # Answer RSTR=`OK' H # Hangup RSTR=`OK'
atcmd 模式的用途mode
atcmd模式是passthrough-mode。Passthrough指的是它接收 GSM 07.07 指令,透過背景程式將它傳送到電話,並且傳回你的回應。這對於偵除錯誤來講,是很有用的一個方法。
atcmd模式可以由使用下列指令來啟用它
libgsmd-tool -m atcmd
它的用途可以參考下面的範例:
> src/util/libgsmd-tool -m atcmd libgsm-tool - (C) 2006 by Harald Welte This program is Free Software and has ABSOLUTELY NO WARRANTY AT+CPAS STR=`AT+CPAS' RSTR=`+CPAS: 0' AT+COPS=? STR=`AT+COPS=?' RSTR=`+COPS: (2,"E-Plus","E-Plus","26203"),(3,"o2 - de","o2 - de","26207"),(3,"Vodafone.de","Vodafone","26202"),(3,"T-Mobile D","TMO D","26201")'
網路相關的功能
控制員的選擇功能被合併到 SVN head[1]:
libgsmd-util 指令列如下:
R - Register to given operator (R=number) P - Print current operator L - Detect available operators Q - Read signal quality
它是由名為 "_opers_" 所執行。
目前所欠缺的
(如果你遺失了某些功能,請將這些項目加下以下的清單)
- 話機相關功能
- 飛航模式/gsmd 暫停 (它將會在gsmd外被執行,透過使用runlevels / upstart)
- 設定緊急呼叫,即使裝置沒有安裝SIM卡
- 取得製造商/型號/修訂版/IMEI
- 能通知使用者SIM卡未被鎖住的功能 (或者能自動的反鎖它)
- 簡訊相關的功能
- 傳送簡訊
- 接收簡訊
- 取得IMSI
- 存取SIM卡,儲存簡訊到SIM卡 - 不再有遺失的狀況 - 參考輔助說明
- SIM 相關功能
- 讀取電話簿輸入 - 不再有遺失的狀況 - 參考輔助說明
- 寫入電話簿 - 不再有遺失的狀況 - 參考輔助說明
- GPRS相關功能
- 設定GPRS連結,透過分散的TS07.10使用DLC of TS07.10 多路傳輸
- gsmd內部基礎架設
- fine-grained event subscriptions (rather than wildcard-subscribe)
- possibility to specify log-level from command line
- logfile re-opening on SIGUSR1 or SIGHUP (logrotate)
- permission handling
- d-bus interface
Implementation Thoughts
Testing framework
Emulating/mocking the firmware, gsmd and libgsmd can be tested for functionality; on any machine. See Kero's page or go directly to the (lib)gsmd testing page.
State tracking
gsmd needs to do apropriate state tracking of the underlying GSM hardware. For many of the state transition we only get events from the GSM Modem, but don't have apropriate query commands. Thus, assuming gsmd runs all the time, applications can come and go, but still have an idea about the current state of the modem, even if they missed the initial state transitions.
Also, gsmd state tracking allows us to allow for safer interoperability of multiple applications. If i.e. one applications has just started an outgoing call, gsmd can detect another application who intends to interfere with that and deny access
device power state
- modem completely off, not responding to AT commands
- modem responding to AT commands, but powered off (CFUN=0)
- modem responding to AT commands, in some power saving mode
- modem responding to AT commands, powered on, fully operational (CFUN=1)
Suspend power state
It must also configure the modem so that it can on appropriate events wake the system from sleep.
network registration state
- not registered to any network, not trying to register
- not registred to any network, searching/trying to register
- registered to home network (including cellID)
- registered to roaming network (including cellID)
ciphering indication state
- ciphering indications not supported by modem
- ciphering indications supported, but disabled in SIM
- ciphering indications supported, ciphering active
- ciphering indications supported, ciphering inactive
call state
- idle
- busy
Sources of gsmd are kept in OpenMoko svn in src/target/gsm directory.
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