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Commit Graph

34 Commits

Author SHA1 Message Date
Stacey Sheldon
bfe6676eed exti: rewrite exti layer to improve portability
The exti layer now allows drivers to register interrupt callbacks
during board initialization.  All details of the driver using a
particular EXTI pin have been removed from the EXTI layer so it
can now be used on any board without board-specific modification.

This includes some nice refinements provided by Mike Smith during
initial review.  His original commits have been squashed into this
one.
2012-01-22 23:23:41 -05:00
Stacey Sheldon
bae08fcad0 bmp085: decouple i2c adapter
Let the bmp085 be attached to different adapters for different
boards.
2012-01-14 15:38:56 -05:00
Stacey Sheldon
4cb0c41338 bmp085: only use eoc and drdy gpios when available
When the bmp085 chip is on an external board, we don't
have access to the eoc and drdy gpio lines.  Only use
them when available.
2012-01-14 15:38:56 -05:00
chebuzz
195e93c0d6 OP-377 PiOS/BMP085 - Update BMP085 driver to be FreeRTOS agnostic. This is required since new INS does not run FreeRTOS.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@3160 ebee16cc-31ac-478f-84a7-5cbb03baadba
2011-04-14 09:46:23 +00:00
peabody124
3c021c09d9 Flight/PiOS: Whitespace changes
find ./flight/PiOS/inc/ \! \( -name '*~' -a -prune \) -type f    | xargs -I{}
bash -c 'echo {}; dos2unix {}; gnuindent -npro -kr -i8 -ts8 -sob -ss -ncs -cp1
-il0 -hnl -l150 {};'

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1777 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-09-27 07:28:45 +00:00
stac
88e73906d0 i2c: Add recovery code for i2c bus errors
I2C bus errors are now recoverable.  The bus is properly reset
and an error indication is now provided to the caller whenever
a bus error occurs during processing of the transaction list.

For now, the users of the I2C layer just retry infinitely on
failure.  The BMP085 and HMC5843 code should be changed to
report errors to its callers to allow a more sensible retry
strategy.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1625 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-09-15 14:20:57 +00:00
stac
65ad2caf8a i2c: Make transaction initiator available in txn list
The info field in the pios_i2c_txn list can now be used
to provide a const string which describes the context
for this transaction.

This is very helpful when diagnosing an error that occurs
somewhere in the middle of the I2C FSM since the FSM runs
primarily in the ISR where the original context for the
transactions is no longer available in the traceback.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1622 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-09-15 14:20:53 +00:00
stac
f74c6ffdd5 i2c: rewrite i2c layer
The STM32 I2C block has a number of errata associated with it.
These errata are primarily related to timing sensitivities between
the peripheral and the interrupt handler.  In particular, the
correct generation of the stop bit relies on the I2C IRQ running
immediately and not being held off for any reason.

NOTE: The I2C interrupts must be the highest priority IRQs in the
      system to ensure correct operation.

I2C protocol is now implemented as a formal state machine.
See: stm32_i2c_fsm.{dot,jpg} for FSM description.

I2C init is now expressed by const initializers in pios_board.c
for both OP and AHRS boards.

I2C device drivers (ie. bmp085/hmc5843) now pass in const arrays
of an unlimited number of bus transfers to be done atomically.
The I2C adapter driver now handles all bus-level locking across the
list of transactions.  Generation of start/restart/stop conditions
are handled automatically over the list of transactions.

Timeouts have been removed from the API for now.  May be added
back later.

This driver has run error free on both the OP and AHRS boards for
up to 48hrs but it still sometimes fails earlier than that on the OP
board.  There is another possible set of improvements to the driver
that could employ the DMA engine for transfers of >= 2bytes.  This
change would reduce the timing sensitivities between the peripheral
and the driver but unfortunately, both the SPI and I2C interfaces
share the DMA1 engine.  That means only one of these two peripherals
can use the DMA engine and right now, SPI between OP and AHRS is
already using it.

Failures are currently fatal and will lock up the CPU.  This allows
useful information to be obtained in the failure cases.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1241 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-08-08 04:15:08 +00:00
FredericG
66e22b56ce Fix in bmp085 driver. Was not checking correctly if lock on I2C succeeded => caused an assert when used in combination with other I2C devices
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1163 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-07-27 09:52:45 +00:00
peabody124
d928676f5e More documentation updates, standardizing format to include addtogroup at the beginning of headers so files are associated with modules
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1121 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-07-16 19:53:35 +00:00
peabody124
99e94228a9 More doxygen updates
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1106 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-07-16 05:31:11 +00:00
stac
e892dcb033 bmp085: create semaphore prior to configuring irq
Since the EXTI and NVIC init routines automatically enable the IRQ when it
is configured, it is possible for the EOC interrupt to fire immediately
upon configuring the IRQ.

Since the handler for the EOC interrupt (EXTI15_10_IRQHandler) does a
xSemaphoreGiveFromISR, it is important to have the semaphore initialized
prior to enabling the interrupt.

Also, added missing include for altitude module.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@654 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-05-24 16:33:30 +00:00
gussy
ff73ab5a80 More updates to cross-target compatibility.
Added PIOS_I2C into AHRS code.
Added PIOS_HMC5843 Module.




git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@617 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-05-12 08:18:49 +00:00
fredericg
3281b1a128 OP-27 Use RTOS in LockDevice() and UnlockDevice()
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@564 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-05-01 14:49:51 +00:00
gussy
41fd921b14 Updated BMP085 test code.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@375 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-23 04:01:11 +00:00
gussy
362163d48b Added dependency checking, just in case.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@371 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-22 02:09:56 +00:00
gussy
6826706cb7 Moved external interrupts into it's own API.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@370 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-22 02:07:06 +00:00
FredericG
50215e75c6 OP-28 Some changes in the I2C API
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@296 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-13 12:23:55 +00:00
fredericg
47038af0c0 PIOS_DONT_USE_XXX => PIOS_INCLUDE_XXX
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@283 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-11 12:38:51 +00:00
gussy
c409a62978 PIOS_BMP085 module finished.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@262 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-06 16:04:31 +00:00
gussy
cafed0a148 BMP085 Sensor now working completely.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@261 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-06 14:20:42 +00:00
gussy
fd889b918b Updates to BMP085 readings.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@260 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-06 10:28:08 +00:00
gussy
5e70edb021 OP-1: Small fixes to reading/writing from sensor.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@256 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-06 06:09:18 +00:00
gussy
7de6be3f59 Reading and writing to BMP085 sensor now working.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@249 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-05 10:44:11 +00:00
gussy
792406510c Small fixes. BMP085 drivers still not working.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@246 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-04 15:41:21 +00:00
fredericg
ad816dc070 Renamed PIOS_I2C_TransferBegin => PIOS_I2C_LockDevice because it better describes what it does
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@231 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-03 11:46:24 +00:00
gussy
95d068884a PIOS_BMP085 now non-application specific.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@205 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-02-28 07:01:18 +00:00
gussy
adcd47a31b Added ability to enable and disable PiOS modules.
Added PIOS_USB_COM.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@202 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-02-28 06:47:49 +00:00
gussy
9bce59ef1a Small cleanup changes.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@200 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-02-28 04:47:51 +00:00
gussy
3b32b89839 Updated copyright headers.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@146 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-01-31 17:56:54 +00:00
gussy
8eaaf20a21 Optimised startup procedure for speed.
Fixed bmp085 i2c write procedure.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@64 ebee16cc-31ac-478f-84a7-5cbb03baadba
2009-12-11 00:24:03 +00:00
gussy
d306ade1a7 Conversions now use the BMP085 EOC (End Of Conversion) pin with an external interrupt, which is a much nicer way of doing things.
One major timing caveat still exists, still deciding the best way to cross that bridge.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@63 ebee16cc-31ac-478f-84a7-5cbb03baadba
2009-12-10 06:08:28 +00:00
gussy
b6cc2df29d Finished off initial revision of BMP085 drivers.
Added math.h to pios.h includes.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@62 ebee16cc-31ac-478f-84a7-5cbb03baadba
2009-12-10 04:28:21 +00:00
gussy
9eeaf09b80 Fixed a few typos in PIOS_I2C.
Started work on BMP085 driver. Need more information from Bosch to continue.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@61 ebee16cc-31ac-478f-84a7-5cbb03baadba
2009-12-10 01:59:46 +00:00