The signals are driving an external NPN transistor, so the default state
must be low at reset to en sure that !PERST on the modem input is
de-asserted by default.
When we reset the hub, the hub will actively drvie the PRTPWR signal of
the SITMRACE12 low, resulting in the SAM3 being shut off. If we want to
"survive" this, we need to set the OVERRIDE before we go into reset.
Right now, we never release the signal again, keeping ST12 enabled
permanently, which is of course not what we want in general.
You can compile the firmware for this new target using 'make
BOARD=qmod'.
The QMOD differs from simtrace+owhw in terms of low-level
initialization, as it has an external 12MHz clock at XIN, thus bypasses
the main oscillator and needs different PLL configuration.
We can now enable CARDEMU_SECOND_UART in owhw/board.h, as it no
longer interferes with operation of the first port (USIM1). Whether
the second port actuall works still remains to be tested at this point.
This way the application on the USB host can control whether the
emulator should emulate that the card be inserted or not. We change the
reset-default back to 'not inserted' (GPIO output 0) and wait for the
application to explicitly request this by issuing
CEMU_USB_MSGT_DT_CARDINSERT.
Depending on which features (and thus USB configurations) are included
in the firmware, we need to re-define the ordering of the configuration
numbers, as the Atmel USBD driver simply assumes that configurations are
numbered 1..N without any gaps in the sequence.
we shouldn't re-use the vendor/device ID usd by simtrace1, as the
protocol is incompatible and applications for simtrace 1 don't work with
simtrace2. Also, there's a different processor architecutre in the
hardware.
Atmel library mixes up the value for two different messages.
Explanation can be found here:
http://permalink.gmane.org/gmane.comp.mobile.osmocom.simtrace/29
Actually, a better fix for this problem would be to go through the
Atmel code and replace ICC_INSERTED_EVENT with ICC_BS_PRESENT_NOTACTIVATED
where appropriate and in accordance with the Smart Card CCID standard
(and libccid, for this matter).
The code used a vendor and product id taken from Atmel example code.
Now it is changed to the vendor and product id, which was also previously
used in the original SIMtrace code.
* ISO7816_Init: Takes Usart_info and CLK_SLAVE/CLK_MASTER as param
* ISO7816_SendChar, ISO7816_GetChar: Usart_info is passed
* ISO7816_Set_Reset_Pin function for CCID part
* iso7816_4.c: BOARD_ISO7816_BASE_USART replaced by USART_SIM
* Redundant _ISO7816_Init, _ISO7816_SendChar, _ISO7816_GetChar
functions removed
* All simtrace modes use iso7816_4.c functions instead of redefined
_ISO7816_xxx functions
