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477 Commits 17 Branches 14 Tags
67415e33850fd56892015cb56edfcb514f4cb5d1
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146 Commits

Author SHA1 Message Date
Harald Welte
67415e3385 HACK: Add EEPROM writing at boot of SAM3 on qmod 
This is not for production use, but just for hardware verification
 2016-09-01 20:57:56 +02:00
Harald Welte
73d697d788 i2c-bitbang: increase speed to ~110kHz 2016-09-01 18:58:41 +02:00
Harald Welte
0aea9fff28 Fix reading SDA in I2C bit-banging code 
We need to use pin_sda_in, not pin_sda to read the PIO Input.
 2016-09-01 18:39:12 +02:00
Harald Welte
c6ae98c53a i2c_bitbang: Change logic when to use i2c_delay() 2016-09-01 11:57:09 +02:00
Harald Welte
226b40aba4 WIP: bit-banging I2C support for EEPROM access on QMOD 
for now, it just continuously reads the EEPROM bytes and dumps them to
the serial console for testing.
 2016-08-21 19:33:24 +02:00
Harald Welte
fd9c041ec8 fix TRACE_ENTRY line termination (LF -> CRLF) 2016-03-20 18:20:14 +01:00
Harald Welte
622b6be774 Fix ADC based VCC detection 
* we need to actually return the voltage
* we need to use the correct register name for the CIDR
 2016-03-20 18:19:18 +01:00
Harald Welte
3bafe43376 dynamically dispatch USART IRQs 
The different modes (configurations) will have different interrupt
handlers, so we need to dispatch them via config_func_ptrs
 2016-03-20 18:19:12 +01:00
Harald Welte
dde112e71c print instance/channel number in all trace messages 
When debugging issues related to two concurrent SIM card emulations,
it is vital to know to which USART a message relates.
 2016-03-20 16:42:11 +01:00
Harald Welte
8ee15dbc2a read SAM3S unique serial number at start and print it 2016-03-20 16:00:39 +01:00
Harald Welte
28772ebcdc ADC: Make errata work-arounds depend on run-time detection of chip version 2016-03-20 15:44:52 +01:00
Harald Welte
cf1c19abe0 src_simtrace/main: debug/trace logging improvements 2016-03-20 15:18:18 +01:00
Harald Welte
04e37a8481 firmware/main: Disable the rotor unless TRACE_DEBUG 2016-03-20 15:18:03 +01:00
Harald Welte
53079bbbac debug/tracing updates 2016-03-20 14:58:35 +01:00
Harald Welte
c58bba0833 wait for UART Tx completion before switching baud rate at PTS 2016-03-20 14:57:53 +01:00
Harald Welte
c8beefbf85 wait for transmitter to be done before receiving 
At higher speeds, it seems we are turning off the transmitter before we
are enabling the receiver.  Unfortunately the TXEN bit in the uart mode
register is read-only, so we don't really know if the transmitter is
enabled or not.  It seems we can simply keep transmitter + reciver
running at the same time, and use the TXEMPTY bit as reliable means to
determine if we're busy transmtting.
 2016-03-20 14:40:47 +01:00
Harald Welte
903d63a1e0 card_emu: Alwasys update state before enabling UART Rx/Tx 
The UART Rx/Tx irq might hit us before we actually reach the line that
changes the state.  So always update the state before enabling UART
Rx/Tx.
 2016-03-20 13:38:39 +01:00
Harald Welte
52d554657c card_emu: Avoid PTS related race-condition 
We should not set the new Fi/Di values before we actually transmitted
the PTSS PCK at the old baud rate first.
 2016-03-20 13:38:05 +01:00
Harald Welte
ccb8a22037 card_emu: Avoid PTS related race-condition 
We should not set the new Fi/Di values before we actually transmitted
the PTSS PCK at the old baud rate first.
 2016-03-20 13:37:11 +01:00
Harald Welte
a929f218d2 card_emu: Differentiate between TRACE_{DEBUG/ERROR/INFO} 2016-03-20 13:36:42 +01:00
Harald Welte
07872b6cdd VCC/ADC: finish implementing VCC detection via ADC 
... however, keep it disabled due to ADCVREF not being connected on
OWHWv1/v2.
 2016-03-20 11:45:36 +01:00
Harald Welte
6dcacf3efe OWHW: fix operation with second modem/UART 
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.
 2016-03-20 10:06:05 +01:00
Harald Welte
419eb8acf2 WIP: Use ADC to determine VCC voltage 2016-03-20 10:04:03 +01:00
Harald Welte
ff16065047 implement CEMU_USB_MSGT_DT_GET_STATUS 
card_emu can now report its current satus upon request.
 2016-03-19 21:59:06 +01:00
Harald Welte
2315e6ba07 ensure git version ends up in firmware image 2016-03-19 21:37:55 +01:00
Harald Welte
b26d0038f6 split/segment multiple commands from single USB transfer 
UDP end-points are streams, so when we receive data on the OUT
endpoint callback, the buffer might contain several commands.  When
dispatching the messages, split (segment) them again before dispatching
them to their respective handlers.
 2016-03-19 13:33:02 +01:00
Harald Welte
d295b92192 ensure usb_msg_hdr contains raw message length 
we want to ensure that the length of every (current or future) message
can be determined by looking at cardemu_usb_msg_hdr.msg_len, rather than
having a length that is relative to the respective specific command.
 2016-03-18 21:01:36 +01:00
Harald Welte
b8f9450c18 shrink ringbuffer size to 128 bytes 
We only use it to implemet a software FIFO between the UART Rx IRQ
and the code that processes it.  1k is way too large for that.
 2016-03-18 10:33:31 +01:00
Harald Welte
9f240b6d34 use irq-safe version of llist operations between USB callback and main 2016-03-18 10:32:56 +01:00
Harald Welte
da15ca01bf mode_cardemu: mask the USART status register with mask register 
otherwise it might be reacting on stale bits in CSR, which actually are
no longer able to cause any interrupts.
 2016-03-17 21:14:04 +01:00
Harald Welte
3d27c84635 host_comm: Fix race condition in handling OUT USB transfers 2016-03-17 20:07:45 +01:00
Harald Welte
250cd2c062 host_communication: set rctx->tot_len after receiving USB transfer 2016-03-17 18:19:39 +01:00
Harald Welte
5820ea9327 dispatch_usb_command: Ensure list consistency + avoid mem leaks 
When iterating over the queue of req_ctx, make sure to unlink each
buffer before processing it.  And during processing, ensure all buffers
are reelased back to the memory management.
 2016-03-16 22:22:57 +01:00
Harald Welte
0eaa992682 cardem: Add support for USB host based set/clear of card_insert 
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.
 2016-03-16 22:22:57 +01:00
Harald Welte
7abdb51f8f ringbuffer: Make ring buffer access irq-save 
We have to temporarily disable nterrupts when performing rinbuffer
operations, as the ring buffer is used both from IRQ as well as process
context.
 2016-03-16 22:22:54 +01:00
Harald Welte
7dd3dfd992 convert all src_simtrace code to kernel coding style 
Let's use the Osmocom standard, based on the Linux kernel standard:
tab-indent and 8-charracter tab width.
 2016-03-16 20:45:10 +01:00
Harald Welte
1605564489 ensure USB config numbers always start from 1 
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.
 2016-03-16 20:45:10 +01:00
Harald Welte
072daddf98 main.c: Only call the configure() function of a configuration if it exists 2016-03-16 20:45:10 +01:00
Harald Welte
40901a0f14 various printf/debug output improvements 
... among those is a rotor (\|/-) that is printed by the main loop,
so one can observe if the main loop is still executing or the system
is somehow stuck.
 2016-03-16 20:45:09 +01:00
Harald Welte
57b3a250d4 Add Card-Emulation for second UART/USIM to USB descriptors 2016-03-16 20:45:09 +01:00
Harald Welte
13e8202c81 mode_cardem: Prepare for full support of second UART/USIM 
So far we have only been working with a single UART/USIM. Let's
make things more data structure driven and pass around handles to
the data structures rather than hardcoding...
 2016-03-16 20:45:09 +01:00
Harald Welte
06b27f64a2 mode_cardemu: Implement CEMU_USB_MSGT_DT_SET_ATR 
This way the host PC can set the ATR of the emulated card
 2016-03-16 20:45:09 +01:00
Harald Welte
ebb80eda19 introduce 'main' queue between USB receive and UART TX 
In order to handle other USB commands like GET_STATUS, SET_ATR
or GET_STATS, we introduce an intermediary queue.  The USB receive
completion call-back puts the command on that intermediate 'main'
queue.  From that intermediate queue, the are further
dispatched/processed according to their mesage type.
 2016-03-16 20:45:09 +01:00
Harald Welte
ad43440d93 card_emu: Fix various compiler warnings by switch/default/break 2016-03-16 20:45:09 +01:00
Harald Welte
a0cf200695 host_communication: keep track of number of pending/queued req_ctx 2016-03-02 10:35:51 +01:00
Harald Welte
acd48c51f2 HACK: always use the USART interrupt handler of mode_cardemu() 
This must be fixed in a way that the per-configuration interrupt
handler is called, depending on the USB configuration that is set.
 2016-03-02 10:34:24 +01:00
Harald Welte
fcdd660fb1 card_emu: Don't de-reference a NULL variable 2016-03-02 10:33:58 +01:00
Harald Welte
12d4bdfbb1 mode_cardemu: Process RX interrupts before TX 
It's always more important to pull out a received character from
the receive holding register to avoid the risk of overflow, so let's
do that first.
 2016-03-02 10:31:03 +01:00
Harald Welte
dda7355306 card_emu: Only transmit NULL byte from the right state 
The reader cannot accept a waiting time extension at any time. Rather,
it can only accept it if it is currently  waiting for a procedure byte.
 2016-03-02 10:29:55 +01:00
Harald Welte
f1697e2dd9 card_emu: Only allocate a new buffer if needed in send_tpdu_header() 2016-03-02 10:28:54 +01:00