this change is mainly relevant for the SIMtrace board, but also
affects the others.
First we ensure VCC_PHONE is not forwarded to VCC_SIM because the
card could affect the signal (card could draw too much current or
feed back current in).
next we disable VCC_SIM. the card slot does not need to be
powered, and the FPF2019 leaks current back to VCC_PHONE, even
with forwarding disabled (the reverse current protection only
kicks in when VCC_PHONE is briefly shorted to ground, but still
leaks 0.6V).
enable the ADC channels normally used to measure VCC, even if
not used. the dedicated ADC pins leak current when left
unconfigured. enabling them puts them in high impedance.
Change-Id: If1487c1c191838aaa08b654e49cd31c7180ffc19
the reset/ATR handling has been heavily updated/fixed.
instead of using the timer counter peripheral to handle
the waiting time and corresponding timeout, the USART peripheral
internal timeout mechanism is used.
this is particularly important for the SIMtrace board since the
clock signal is not connected to the timer counter.
thus this change adds card emulation support for SIMtrace boards.
Fi and Di have been properly rename to F and D since the "i"
stands only for an "indicated" value, not the actual value.
this does not change the USB protocol (the variable have just been
renamed).
additional variables store more information about the card
capabilities
NOTE: it has only be tested for the SIMtrace board
Change-Id: Ibcb2c8cace9137695adf5fb3de43566f7cfb93b5
There have been tons of format-string related bugs in our code which
we never discovered due to disabling -Wformat. Let's fix that.
Change-Id: I5ec466361bcc526fac1f4897673264ee5af3458b
this changes how ATR is handled.
the ATR is also printed when set (as important debug information).
the test is also updated to correspond to the new mechanism (
simulating the timeout before sending the ATR)
Change-Id: I69df797e2feadffa9f5f977cb71b69386cee7cd0
the msg->l2h pointer was not set but used later on, e.g. in
dispatch_usb_command_cardem, case SIMTRACE_MSGT_DT_CEMU_SET_ATR):
> case SIMTRACE_MSGT_DT_CEMU_SET_ATR:
> > atr = (struct cardemu_usb_msg_set_atr *) msg->l2h;
> > card_emu_set_atr(ci->ch, atr->atr, atr->atr_len);
l2h is by default 0, thus not pointing to the actual message l2h.
I wonder how cardem worked worked before with this issue though.
Change-Id: Ifbb53dbf478d8dade82251f769e78e1306e77434
when building the trace app for the simtrace board gcc was outputing
the following error:
libboard/common/source/boardver_adc.c:20:17: warning: 'adc2uv' defined but not used [-Wunused-function]
static uint32_t adc2uv(uint16_t adc)
adc2uv is used by qmod, and defined in two places:
in boardver_adc.c and mode_cardemu.c.
this change will have adc2uv only defined in boardver_adc.c and make
available in the header to be used by mode_cardemu.c.
Change-Id: I8a772638fa8dd02d8bc8b7631de5af5a22647c55
In commit eac1bec428 we start to use the
ringbuffer inside the console printing code. As a result, we must not
use TRACE_*() or printf() from within ringbuffer.c code to avoid
infinite recursion.
Instead, let rbuf_write() return a negative return value in case the
ring buffer overflows. This way, the callers (outside the
console/stdout code) can print an error message themselves.
Change-Id: Ib009f013be119dbad22fa2b7d60ec8dee59baee5
the curent local copies of libosmocore headers + source is a temporary
hack anyway. We should instead rely on a system-wide install of
libosmocore cross-compiled for arm-none-eabi. But leave that as a
second (later) step beyond this patch.
Change-Id: Ia63fd842d45a2b404233b4326050e7eda0604cf0
msg->l2h should always point at the first byte of the header after the
generic simtrace header. For some reason this doesn't work if used
globally, but it is required for the MSGC_MODEM messages to be
interpreted correctly.
The current protocol was card-emulation specific. The new protocol is
generic/flexible enough to accommodate both tracing and card emulation,
as well as modem control and other future extensions.
We now generalize the USB communiction and abandon the 'req_ctx'
structure inherited from openpcd. Instead we use the libosmocore 'msgb'
structure to handle incoming and outgoing USB tranfers. We also use
linuxlist-based msgb-queues for each endpoint.
