The affected call types for +CHUP were set to only ACTIVE calls.
Instead the affected set should include INCOMING, DIALING, ALERTING and
ACTIVE calls.
Thanks to Ionut Dediu for the diagnosing and reporting this issue.
The SIM900 module from SIMCOM does have a AT+CGDATA command.
However, it is not possible to make a ppp connection when CGDATA
has been used to bring up the gprs context.
This patch adds a quirk that uses the alternative ATD*99***<cid>#
command instead.
Before, the AT+BAC command was being sent with fixed information,
now we send the command (that inform the AG of the codecs supported by
the HF) with the codecs supported by the registered Handsfree Audio
Agent.
This patch fixes segmentation fault when the network registration
watch is called without being initialized. CIEV GAtChat callback can
be called before ofono_netreg_register().
==15101== Invalid read of size 8
==15101== at 0x492B56: ofono_netreg_register (network.c:2073)
==15101== by 0x47245E: hfp_netreg_probe (network-registration.c:311)
==15101== by 0x492A8D: ofono_netreg_create (network.c:1881)
==15101== by 0x4849D5: hfp_pre_sim (hfp_hf_bluez5.c:288)
==15101== by 0x48C486: ofono_modem_set_powered (modem.c:1194)
==15101== by 0x484E9D: slc_established (hfp_hf_bluez5.c:85)
==15101== by 0x4702AD: chld_cb (slc.c:147)
==15101== by 0x440457: at_chat_finish_command (gatchat.c:461)
==15101== by 0x44109F: new_bytes (gatchat.c:532)
==15101== by 0x4433B7: received_data (gatio.c:122)
==15101== by 0x3CBAA47824: g_main_context_dispatch (gmain.c:2539)
==15101== by 0x3CBAA47B57: g_main_context_iterate.isra.23
(gmain.c:3146)
==15101== Address 0x18 is not stack'd, malloc'd or (recently) free'd
Some phones do not send the corresponding call state update (+CIEV)
after a successful release-and-swap operation (AT+CHLD=1).
This has been observed with a Nokia 500, while testing ReleaseAndSwap()
while an active and a held call exist:
ofonod[20414]: > AT+CLCC\r
ofonod[20414]: < \r\n+CLCC: 1,0,1,0,0,"<number1>",145\r\n
ofonod[20414]: < \r\n+CLCC: 2,0,0,0,0,"<number2>",145\r\n
ofonod[20414]: < \r\nOK\r\n
ofonod[20414]: > AT+CHLD=1\r
ofonod[20414]: < \r\nOK\r\n
After this, no +CIEV is received, but the call has been hung up.
The proposed approach to solve this consists of using AT+CLCC, unless
a call release has been received within a specific time period.
The result fixes the problem as can be seen below:
ofonod[20847]: < \r\n+CLCC: 1,0,1,0,0,"<number1>",145\r\n
ofonod[20847]: < \r\n+CLCC: 2,0,0,0,0,"<number2>",145\r\n
ofonod[20847]: < \r\nOK\r\n
ofonod[20847]: > AT+CHLD=1\r
ofonod[20847]: < \r\nOK\r\n
ofonod[20847]: > AT+CLCC\r
ofonod[20847]: < \r\n+CLCC: 1,0,0,0,0,"<number1>",145\r\n
ofonod[20847]: < \r\nOK\r\n
ofonod[20847]: < \r\n+CIEV: 5,2\r\n
ofonod[20847]: < \r\n+CIEV: 5,0\r\n
While processing the result of AT+CLCC, process the differences in a way
that disconnections are reported first, then call state changes and
finally new calls.
The goal is to avoid unnecessary transitional states such as two active
calls existing at the same time.
Right now, only the mandatory CVSD codec is supported. The mSBC
mandatory codec is "temporarily" not supported.
The spec alows this, HFP 1.6 Spec Section 4.34.1 page 92: "If wide band
speech is supported then the mandatory codec (mSBC) shall be included
unless it is temporarily unavailable."
Especially for Telit HE910 it is not enough to wait for
entering a PIN code.
If we do not wait for #QSS: 3, subsequent commands,
like +CMER will report SIM BUSY and the network registration
atom will be removed as a consequence.
If device probe and removal happen in short succession, it's possible
that the idle handler registered in the probe function doesn't run before
the device is removed. In this case, the idle handler needs to be
unregistered so that it does not run and try to access the data that's
destroyed during the removal.
We might have mis-interpreted how 27.007 intends for CBS to work. After
studying the implementation notes of the IMC 6260 modem, the spec intent
made a little bit more sense.
During STK Set Up Call, we have modem-originated calls that do not go
through the core 'Dial' method. Make sure the calls are still detected
in this case.
Denis Kenzior
Krzysztof Wilk
Andrew Earl
Anthony Viallard
Jesper Larsen
Frederic Danis
Claudio Takahasi
Paulo Borges
Vinicius Costa Gomes
Mikel Astiz
Christopher Vogl
Daniel Wagner
Mingli Wu
Marcel Holtmann