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simtrace2
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575 Commits 17 Branches 13 Tags 6.8 MiB
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575 Commits

Author SHA1 Message Date
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 a02b641650 Add support for 'qmod' (quad-modem) board 
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.
 2016-08-21 18:32:12 +02:00
Harald Welte fd9c041ec8 fix TRACE_ENTRY line termination (LF -> CRLF) 2016-03-20 18:20:14 +01:00
Harald Welte 990f01051f Add HardFault Exception Handler 
The HardFault exception handler prints the stacked register as well
as some SCB registers to help debugging even in absence of JTAG.
 2016-03-20 18:19:35 +01:00
Harald Welte e26c943fa1 exceptions: Print name of exception to console 2016-03-20 18:19:18 +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 1871c25b6d simtrace2-remsim: Instruct SAM3S to simulate card removal on SIGINT 
When stopping the program, we inform the card simulator to indicate
a card removal to the GSM phone/modem.
 2016-03-20 15:30:46 +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 5541e8a819 USBD_HAL: Hard-code TRACE_LEVEL_WARNING 
we don't want to have USB related messages mess up our console
 2016-03-20 15:13:47 +01:00
Harald Welte 9daaa79222 simtrace2-remsim: Send an ATR that allows for a 5MHz/16 divider 
This ATR is useful to test higher speeds up to 312500 bits/s
 2016-03-20 15:01:20 +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 02d5096b31 add host .o and executables to .gitignore 2016-03-19 21:38:59 +01:00
Harald Welte 2315e6ba07 ensure git version ends up in firmware image 2016-03-19 21:37:55 +01:00
Harald Welte 236caf68eb remote-sim host tools: Auto-discover the endpoint addresses 
We now auto-discover the end-point addresses based on the interface
descriptor.  The user can also use the new "--interface" command line
argument to set a non-zero intrerface.  In combination, this should
enable support for the remote-sim functionality on the second UART
on OWHW.
 2016-03-19 21:28:09 +01:00
Harald Welte 095ac6cbe2 Add simtrace2-remsim applications 2016-03-19 13:52:31 +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 372f4cc7ba board_lowlevel: Use LED definitions from board.h 
... this is more portable.
 2016-03-16 22:22:57 +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