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Commit Graph

476 Commits

Author SHA1 Message Date
Brian Webb
f0dfba6fc0 Re-baslined the PipX codebase using the experimental Transmitter codebase. 2012-02-21 20:29:06 -07:00
Stacey Sheldon
e2939dae2a revo usb: Add support for USB to Revo 2012-02-07 02:25:31 -05:00
Stacey Sheldon
4fafbb13ed makefile: Add EF (Entire Flash) targets for all boards
These new build targets will construct a flash image that
includes both a bootloader as well as a firmware image all
in one.  Examples:
  make ef_coptercontrol
  make ef_revolution

This also adds support for a new target for writing this EF
image to boards that support a DFU interface (only F4-based
boards).  This can be done by running:
  make dfuutil_install
  # Boot board with SBL asserted to activate STM32 DFU ROM
  # Attach USB cable
  make ef_revolution_dfu

Bootloader images are also now padded out to occupy the full
BL flash region.
2012-02-03 00:59:36 -05:00
James Cotton
20670d049b Update pios_led for F4 targets to match the new F1 implementation. Also fix
type for F1 in GPIO labels.
2012-01-25 22:50:19 -06:00
James Cotton
5ad37e691c USB: Update the USB configuration structure to include the GPIO that is used
for sensing and then load different config for CC and CC3D.  Updated the
bootloader as well.  Also changed the PIOS_USB_CheckAvailability function to
only return the sense signal and not the transfer_possible flag as this is not
set in time for the bootloader on CC3D for some reason.
2012-01-24 22:15:43 -06:00
James Cotton
bc3703ce33 Need more irq stack for CC3D 2012-01-24 19:48:52 -06:00
James Cotton
c242ab8b86 Merge branch 'next' into revolution3
Conflicts:
	flight/AHRS/ahrs.c
	flight/AHRS/pios_board.c
	flight/Bootloaders/Revolution/Makefile
	flight/CopterControl/System/pios_board.c
	flight/INS/pios_board.c
	flight/OpenPilot/Makefile
	flight/OpenPilot/System/openpilot.c
	flight/OpenPilot/System/pios_board.c
	flight/PiOS/Boards/STM32103CB_CC_Rev1.h
	flight/PiOS/Boards/STM32F4xx_Revolution.h
	flight/Revolution/Makefile
	flight/Revolution/System/inc/pios_config.h
	flight/Revolution/test.c
2012-01-24 10:46:35 -06:00
James Cotton
66293a9788 Merge remote-tracking branch 'origin/stac/led-boottime-config' into next 2012-01-24 10:38:33 -06:00
James Cotton
4cf82815ce Get the right pios_iap.c from next 2012-01-24 09:23:07 -06:00
James Cotton
aaf1c5dfdd Update the F1 SPI library to support multiple NSS lines 2012-01-23 23:27:02 -06:00
Stacey Sheldon
5907022b6d Merge remote-tracking branch 'origin/stac/ld-2.22-fix' into next 2012-01-23 23:05:52 -05:00
James Cotton
9a12299074 Update the driver cfg structures for the EXTI changes. Make the drivers call
the pios_exti_init instead of their individual implementations.
2012-01-23 16:55:52 -06:00
James Cotton
b2a292e9c4 Move all the drivers to the PiOS/Common directory to prepare for refactoring
the EXTI calls they make to the portable version
2012-01-23 10:11:46 -06:00
James Cotton
c84240e485 Merge branch 'next' into revolution3
Conflicts:
	flight/PiOS/STM32F10x/pios_bmp085.c
	flight/PiOS/STM32F10x/pios_exti.c
2012-01-23 06:51:30 -06:00
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
6bb4f0c61d leds: use boot-time config for PiOS LED layer
LEDs are now configured based on a board-specific initialization
in PIOS_BOARD_Init().

LEDs are now named:
  PIOS_LED_HEARTBEAT
  PIOS_LED_ALARM
2012-01-22 18:22:59 -05:00
Stacey Sheldon
3cbf4499e1 ld: make sure current pointer never goes backwards
Fixes linking on ld version 2.22.
2012-01-21 21:18:06 -05:00
James Cotton
bb0bfe0ae4 Merge branch 'next' into revolution3
Conflicts:
	flight/Bootloaders/CopterControl/Makefile
	flight/Bootloaders/PipXtreme/Makefile
	flight/Bootloaders/Revolution/inc/pios_config.h
	flight/CopterControl/Makefile
	flight/INS/inc/pios_config.h
	flight/Libraries/taskmonitor.c
	flight/Modules/Altitude/altitude.c
	flight/Modules/Attitude/attitude.c
	flight/OpenPilot/Makefile
	flight/OpenPilot/Makefile.posix
	flight/OpenPilot/System/inc/pios_usb_board_data.h
	flight/OpenPilot/System/inc/taskmonitor.h
	flight/OpenPilot/System/pios_board.c
	flight/OpenPilot/System/taskmonitor.c
	flight/PiOS/Boards/STM32F4xx_Revolution.h
	flight/PiOS/STM32F4xx/pios_bmp085.c
	flight/PiOS/STM32F4xx/pios_iap.c
	flight/PiOS/pios.h
	flight/Revolution/System/inc/pios_config.h
	flight/Revolution/System/inc/taskmonitor.h
	flight/Revolution/System/taskmonitor.c
	ground/openpilotgcs/src/plugins/serialconnection/serialplugin.cpp
	shared/uavobjectdefinition/systemalarms.xml
	shared/uavobjectdefinition/taskinfo.xml
2012-01-21 11:27:03 -06:00
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
Stacey Sheldon
ec6d550225 i2c: allow i2c adapters to remap pin functions
Allows us to support more complex pin configurations
for i2c.
2012-01-14 15:38:55 -05:00
Stacey Sheldon
a51bf72bc7 usb: allow runtime selection of USB descriptors via hwsettings 2012-01-14 14:28:15 -05:00
Stacey Sheldon
2d27c54d48 com_msg: Create new message based COM layer for bootloaders
The main purpose of this new COM implementation is that it is
much simpler, and requires less code space.  This takes a bit
of the pressure off of the CC bootloader which was right at
the limit of available code space in the bootloader partition.

This is not intended to ever be used by the application.

This driver also formalizes the assumptions in the bootloader's
usage of the COM layer.  All messages are assumed to arrive
in atomic chunks from the HID layer.
2012-01-14 14:23:18 -05:00
Stacey Sheldon
e22bc0c51b copyright: remove incorrect attribution in boilerplate text
These files do not contain content from the ID in the header.
This name seems to have been cut/pasted all over throughout
the openpilot source tree and should be removed from any files
that should not rightfully be attributed to this person.
2012-01-02 23:33:07 -05:00
Stacey Sheldon
8d8715c8c1 copyright: add/correct GPL + copyright boilerplate
I missed some of the boilerplate text on some of the
new files I've added recently.  Fixed.
2012-01-02 23:28:53 -05:00
Stacey Sheldon
b94f4b49a4 usb: major refactoring of USB descriptors, CDC and HID
Summary of changes:
 * USB CDC and HID drivers are completely split apart.
   * This will allow different max buffer sizes for HID and CDC.
 * USB descriptors have been overhauled:
   * Proper structs/macros/enums declared for USB (see pios_usb_defs.h)
   * Two common descriptor definitions.  One for HID+CDC another for HID only.
     See pios_usb_desc_{hid_cdc,hid_only}.c for details.
   * Long standing bugs in OP USB descriptors became much more obvious with the
     new struct definitions.
   * Board specific USB initialization is now in pios_usb_board_data.h in each build target.
   * Definition of USB descriptors is now entirely indpendent of STM32 libs.
     Glue into STM32 libs is provided by pios_usbhook.c.
 * Removed a lot of stale/irrelevant USB #defines throughout the tree.
 * Improved naming consistency throughout USB code:
   * PIOS_USB_HID_* now refers to the HID endpoint code.
   * PIOS_USB_CDC_* now refers to the CDC endpoint code.
   * PIOS_USB_* now refers to the low-level USB code.
   * PIOS_USB_BOARD_* now refers to board-specific USB data
   * PIOS_USBHOOK_* is glue between PIOS and STM32 USB libs.
   * struct usb_* and enum usb_* and USB_* and HID_* are all types from the USB spec.
 * Shrunk the buffer size on the CDC call mgmt endpoint to save some RAM.
 * Made a few more USB related variables static to save some RAM.
2012-01-02 14:27:06 -05:00
Stacey Sheldon
7f03195aba stm32 usb: allow descriptor data to be const through API
This allows a few more data structures to be const to save
some RAM.
2012-01-02 14:27:06 -05:00
Stacey Sheldon
16619584e4 usb cdc: return valid data in response to SetLineCoding 2011-12-30 23:05:36 -05:00
Stacey Sheldon
407bec0c95 usb cdc: track oversized rx buffers 2011-12-30 23:05:35 -05:00
Stacey Sheldon
b858cf387e com: track dropped bytes on rx for usart and usb com 2011-12-30 23:05:35 -05:00
Stacey Sheldon
34af9ac92d usb_com: NAK rather than STALL on buffer full
STALL should only be used to indicate an error has occurred.
NAK is the correct mechanism to provide backpressure.
2011-12-30 23:05:35 -05:00
Stacey Sheldon
e2bb7140fe usb cdc: allow use of entire rx buffer
Previously, the code only allowed n-1 bytes of the
available space to be used.
2011-12-30 23:05:35 -05:00
Stacey Sheldon
86aead52ce usb cdc: only pass valid bytes from USB rx up to com layer
Previously, up to 63 random bytes would be passed to the COM
layer and would be delivered to the application as though
the far end had sent them.
2011-12-30 23:05:35 -05:00
Stacey Sheldon
59cb489e01 usb: clean up pios hooks into stm32 usb_core
Reduced scope of many variables since they were being
exposed unnecessarily.

Renamed pios_usb_hid_prop code to pios_usbhook to reflect
the fact that it implements all of the callout functions
that are hooked into the stm32 usb library.
2011-12-30 23:05:33 -05:00
Stacey Sheldon
c0259dc616 usb cdc: USB composite device with HID + VCP 2011-12-30 23:05:33 -05:00
James Cotton
569b201b58 Move the bl_helper out of the common directory as it isn't 2011-12-24 13:10:23 -06:00
James Cotton
cd65df013e Merge branch 'next' into revolution
Conflicts:
	flight/Project/OpenPilotOSX/OpenPilotOSX.xcodeproj/project.pbxproj
2011-11-26 22:52:32 -06:00
James Cotton
aa698f7b0a Increase the CC IRQ stack to avoid some memory warnings 2011-11-16 09:20:30 -06:00
James Cotton
684715930a Merge branch 'next' into revolution
Conflicts:
	flight/OpenPilot/Makefile
	flight/Revolution/System/inc/openpilot.h
2011-11-14 10:11:53 -06:00
James Cotton
fffb6449ac Delete the old INS target 2011-11-13 17:31:34 -06:00
Oleg Semyonov
f5e82b8242 spektrum: rename Spektrum to DSM (DSM2/DSMJ/DSMX used by Spektrum and JR radios)
No code changes, just file, variable and define names are changed.

First, it better describes the serial protocol used by DSMx satellite
receivers. Second, many people using Spektrum radio, assume Spektrum
protocol. This is the attempt to address those inaccuracies.
2011-11-04 21:40:34 +02:00
Oleg Semyonov
0116e6a007 spektrum: rework DSM2/DSMJ/DSMX driver for explicit DSMX resolution support
- both CC serial ports are now disabled by default (no telemetry);
- serial ports now have DSM2, DSMX (10bit) and DSMX (11bit) options;
- ReceiverGroups now have DSM (MainPort) and DSM (FlexiPort) options.

For DSM2 protocol there is an explicit resolution bit in the stream, so
the DSM2 should be selected. For DSMX there is no such bit, and user
should choose the resolution from the list configuring the spektrum port.
ReceiverGroups have single DSM option which is handled by the same driver.

Downside: this implementation saves received frame first, unrolls by the
end of frame. This should be ok, but may be improved by unrolling channels
on the fly in the rx callback.

Another minor difference is that a ChannelGroup is now bound to port:
DSM (MainPort) or DSM (FlexiPort). This was considered as acceptable
solution in order to not have 6 DSM options for each ChannelGroup and
even more in case of new DSM protocol variations.

Known problem: it is not possible to choose same protocols like
DSM2/DSM2 for two ports. It can be enabled by adding an exception to
common rule, though.

The DSMX throttle channel misbehavior (zero value) is not treated
specially yet. It should trigger the failsafe being out of bounds.
More info and data dumps are required to handle this properly.
2011-10-30 19:29:03 +02:00
James Cotton
0f8ae1e076 Merge branch 'next' into ins
Conflicts:
	flight/Project/OpenPilotOSX/OpenPilotOSX.xcodeproj/project.pbxproj
2011-10-26 13:18:44 -05:00
Oleg Semyonov
a19bbba858 Merge branch 'next' into os/alternative_spektrum_driver 2011-10-25 11:55:05 +03:00
Oleg Semyonov
58d0812309 sbus: better frame syncronization, some cosmetic changes
In the previous version the decoder could in rare cases get synced from
the middle of data stream in case of data byte equal to the S.Bus start
of frame (SOF) byte (wrong data will be rejected but it was not perfect).
Now it waits for the real start of frame and then checks the SOF byte.
2011-10-22 00:44:09 +03:00
Oleg Semyonov
62bca651d5 spektrum: alternative DSMx (DSM2/DSMJ/DSMX) driver
- does not glitch when used in 2-frame mode (DM9, 9503, etc)
- does NOT provides yet DSMX stream decoding - do NOT merge
- uses a bit more time in the interrupt, but frees 16 bytes of RAM.
  This is done to help decoding the weird DSMX stream which does not
  contain explicit resolution/frame/lost frames info and needs special
  processing (to be done yet).
2011-10-21 23:35:17 +03:00
Oleg Semyonov
92b81e3f88 sbus: refactor the code using unified PIOS RCVR driver structure
- allow more than one S.Bus receiver (needs hardware support)
- use dynamic memory allocation (frees around 72 bytes of RAM when unused)
2011-10-20 18:23:23 +03:00
James Cotton
400ba3bd47 Merge branch 'next' into ins 2011-09-12 18:57:11 -05:00
James Cotton
6457276438 Merge branch 'input_configuration' into next 2011-09-11 18:52:35 -05:00
Oleg Semyonov
f5369f9338 Input Configuration: support all 18 S.Bus input channels 2011-09-12 02:06:50 +03:00
James Cotton
4847a04db8 Mainboard: Get PWM working again. Had to add extra timer IRQ handlers for
TIM5-8.  Also TIM1 was not handled probably (for CC either) as the name of the
IRQ is TIM1_CC and TIM1_UP for the capture compare versus update.  I haven't
checked the downstream code that the registers it uses to map from a context to
event is invariant under timer channel.
2011-09-10 14:20:40 -05:00
James Cotton
eb191d869a Mainboard: Get spektrum working again. 2011-09-10 14:19:54 -05:00
James Cotton
2871c75a79 Mainboard: Get PWM working again. Had to add extra timer IRQ handlers for
TIM5-8.  Also TIM1 was not handled probably (for CC either) as the name of the
IRQ is TIM1_CC and TIM1_UP for the capture compare versus update.  I haven't
checked the downstream code that the registers it uses to map from a context to
event is invariant under timer channel.
2011-09-10 13:53:38 -05:00
James Cotton
1d2a424296 Mainboard: Get spektrum working again. 2011-09-09 09:42:13 -05:00
James Cotton
3239fdf21b Merge branch 'next' into ins
Conflicts:
	flight/CopterControl/Makefile
	flight/OpenPilot/System/pios_board.c
	flight/Project/OpenPilotOSX/OpenPilotOSX.xcodeproj/project.pbxproj
2011-09-09 08:33:34 -05:00
James Cotton
d7ea1fc306 PiOS I2C: Swap the expected return value of the F2 pios i2c calls 2011-09-08 01:32:27 -05:00
James Cotton
8f7712435f Merge branch 'safer_failsafe' into next 2011-09-06 16:23:11 -05:00
James Cotton
627c931c79 PiOS I2C: Swap the convention of returned values for I2C 2011-09-06 03:27:20 -05:00
Sambas
a8ef57c6d6 Redo DX8 changes 2011-09-06 08:40:10 +03:00
James Cotton
533ae9bb41 SBUS: Missed handling the S.Bus failsafe. Now returns PIOS_RVCR_TIMEOUT for
either SBus failsafe mode or when no data for 100 ms.
2011-09-04 12:15:34 -05:00
James Cotton
89e640ae7f Make sure all receiver drivers return correct constants for invalid channels. 2011-09-04 01:24:16 -05:00
James Cotton
51967ae63f OP-571 PIOS_PWM: Add back the PWM supervisor 2011-09-04 01:17:40 -05:00
James Cotton
697dbf4f5f OP-568 PIOS_RCVR: Standardize the values that are returned from the PIOS_RCVR and make
them symbolic constants.
- A timeout is 0
- A missing driver is 65534
- An invalid channel is 65535

ManualControl: Make it deal with the values explicitly.  A timed out value
should not be treated like a minimum duration signal.  Instead it does not
updated the scaled value but marks the data window as invalid to trigger the
failsafe.
2011-09-03 23:50:56 -05:00
James Cotton
612d3336b4 This patch breaks backward compatibility with AHRS solidly.
Move the configuration files for INS from AHRS* to INS*.  Strip out unused
fields in settings and merge calibration and settings since settings has
basically no information.
2011-09-01 12:21:33 -05:00
Stacey Sheldon
43b31efb76 pios: allocate driver instance data from heap
Allocate per-instance data for drivers from the heap
rather than as static variables from the .data segment.

This converts > 800 bytes of RAM from being always consumed
as static data into being allocated from the heap only when
a particular feature is enabled in the hwsettings object.

A minimal config (no receivers, flexi port disabled, main port
disabled) leaves 2448 bytes of free heap.  That's our new baseline.

Approximate RAM (heap) costs of enabling various features:
 + 632 Serial Telemetry (includes 400 bytes of Rx/Tx buffers)
 + 108 PWM Rcvr
 + 152 PPM Rcvr
 + 112 Spektrum Rcvr
 + 24  S.Bus (Should be closer to 68 since driver is still using
              static memory)

There are still some drivers that pre-allocate all of their memory
as static data.  It'll take some work to convert those over to
dynamically allocating their instance data.
2011-08-31 22:35:03 -04:00
Stacey Sheldon
2f86e4dd4f Make PWM/PPM and Servo drivers play nicely together
PWM and PPM can now coexist in the same load and be
selected at boot time via the hwsettings UAVObject.

This is basically a complete restructuring of the
way the drivers interact with the TIM peripheral in
the STM32.

As a side effect, the PWM and PPM drivers are now
ready to support multiple instances of each.

This also provides the first step toward being able
to reassign some of the PWM input pins to be servo
output pins.  Still more work required, but this is
a good start.
2011-08-27 21:39:56 -04:00
Stacey Sheldon
b3c43da90a stdperiph: Make TIM related APIs use const pointers
This allows the configuration parameters to be stored in
flash instead of copied to RAM.
2011-08-27 21:39:17 -04:00
James Cotton
dc340596f5 Merge branch 'next' into GCS_ChangesToUI-RuntimeCFG
Conflicts:
	flight/CopterControl/Makefile
	flight/OpenPilot/System/pios_board.c
	flight/OpenPilot/UAVObjects.inc
	flight/PiOS/STM32F10x/pios_spektrum.c
	ground/openpilotgcs/src/plugins/config/config.pro
	ground/openpilotgcs/src/plugins/config/configgadget.qrc
	ground/openpilotgcs/src/plugins/uavobjects/uavobjects.pro
	shared/uavobjectdefinition/hwsettings.xml
2011-08-27 15:26:05 -05:00
James Cotton
5f7a9b513a Merge branch 'sambas/dsmx_stuff' of ssh://git.openpilot.org/OpenPilot into next
Conflicts:
	shared/uavobjectdefinition/hwsettings.xml
2011-08-24 11:37:30 -05:00
James Cotton
e1afc9a19a Merge branch 'next' into ins
Conflicts:
	flight/Libraries/inc/fifo_buffer.h
	flight/PiOS/STM32F10x/link_STM3210E_INS_sections.ld
	flight/Project/OpenPilotOSX/OpenPilotOSX.xcodeproj/project.pbxproj
2011-08-21 00:47:43 -05:00
James Cotton
3465eb2f30 PiOS F2 I2C: Add a callback based transfer. This needs merging into the main
transfer function like SPI but I will leave that for now to avoid creating a
lot of changes in the main code.
2011-08-19 13:38:11 -05:00
James Cotton
b0e04e5f79 PIOS SPI: Make sure the non-freertos busy flag inits to zero 2011-08-19 10:52:50 -05:00
James Cotton
3b6ffc8afa PiSO SPI: Implement a poor mans semaphore for non-freertos systems. 2011-08-18 12:51:00 -05:00
James Cotton
bcca705750 Disable beta hardware bmp085 driver until it's updated. Not necessary anyway
since on the INS.
2011-08-16 08:55:02 -05:00
James Cotton
6529b8360f Trying to get linker system working for INS 2011-08-12 21:28:02 -05:00
James Cotton
1d1f351233 Pios Delay: Add function for measuring time difference between two cycle counts 2011-08-12 04:29:53 -05:00
James Cotton
8c1dd7b929 Make BMP085 driver device dependent and update to new driver style. 2011-08-12 03:38:45 -05:00
James Cotton
9c7799dfe6 UAVObject Init: Get rid of deprecated linker init code 2011-08-10 22:48:42 -05:00
sambas
9f35b6939c Bind IO fix 2011-08-07 10:10:52 +03:00
James Cotton
a0d77faf4b PiOS: Move pios_iap out of common. It is STM32F1x specific. Created an
STM32F2xx stub version.  This needs cleaning up - there is some common code,
most of which can probably move to the bl_helper function.
2011-08-06 20:24:07 -05:00
James Cotton
0bba13a0e9 Merge branch 'next' into ins
Conflicts:
	flight/INS/Makefile
	flight/INS/pios_board.c
	flight/Modules/Altitude/altitude.c
	flight/PiOS/Boards/STM3210E_INS.h
	flight/PiOS/STM32F10x/link_STM3210E_INS_BL_sections.ld
	flight/PiOS/STM32F10x/link_STM3210E_INS_HD_BL.ld
	flight/PiOS/STM32F10x/link_STM3210E_INS_HD_NB.ld
	flight/PiOS/STM32F10x/link_STM3210E_INS_memory.ld
	flight/PiOS/STM32F10x/link_STM3210E_INS_sections.ld
	flight/Project/OpenPilotOSX/OpenPilotOSX.xcodeproj/project.pbxproj
2011-08-06 17:25:56 -05:00
sambas
1e67b5e3b5 DSMx_binder, hw setting 0 disabled, 1-10 bind pulses. Manual disable after successful bind. Only for flexiport. 2011-08-06 22:16:47 +03:00
sambas
a454cf844b DX8 support, BIND3 only 2011-08-04 19:20:05 +03:00
Stacey Sheldon
06cdeb7b61 rcvr: support multiple simultaneous receivers
Now also supports multiple instances of the Spektrum driver.
These are configured as Spektrum1 and Spektrum2.
2011-08-02 01:22:04 -04:00
Stacey Sheldon
2f79e4fa76 Merge remote branch 'origin/stac/refactor-usart-com' into next 2011-07-31 09:41:06 -04:00
James Cotton
568ea13471 Merge branch 'next' into stac/refactor-usart-com 2011-07-31 09:13:27 +09:00
Stacey Sheldon
8b0415d905 bl: alternate stopwatch for small bootloaders
The small bootloaders (CC and PipX) are out of flash space
so their stopwatch implementation has been swapped out for
one based on the DELAY clock that takes about 500 bytes less
of code space.

Identical functionality is preserved.
2011-07-29 15:33:01 -04:00
Stacey Sheldon
13f9b0e09d Merge remote branch 'origin/OP-498_jwhitlock_add-ppm-to-cc' into next 2011-07-28 22:15:01 -04:00
Stacey Sheldon
a3888ecd48 usart: ensure callbacks are bound in the correct order 2011-07-27 23:21:39 -04:00
Stacey Sheldon
5f8760a55c com: Move buffering out of USART/HID layer and into COM layer
This allows the spektrum and sbus receiver drivers to bind
directly to the usart layer using a properly exported API
rather than overriding the interrupt handler.

Bytes are now pushed directly from the usart layer into the
com layer without any buffering.  The com layer performs all
of the buffering.

A further benefit from this approach is that we can put all
blocking/non-blocking behaviour into the COM layer and not
in the underlying drivers.

Misc related changes:
 - Remove obsolete .handler field from irq configs
 - Adapt all users of PIOS_COM_* functions to new API
 - Fixup callers of PIOS_USB_HID_Init()
2011-07-27 19:45:38 -04:00
James
60136f0464 Add support for PPM transmitters up to 12 channels. Small array indexing issue in PIOS_PPM_Get. 2011-07-27 00:33:32 +01:00
Mike Smith
df5569c758 Fix a stupid off-by-one that prevented this code from working.
Update to use 32-bit microsecond values.

Remove PIOS_DELAY_DiffuS per consensus (caller can do it easily themselves).

Update the core delay logic per Stac's suggestion to a version that is
resistant to various overflows.
2011-07-25 20:55:48 -07:00
James Whitlock
6a6ec41809 Build fixes 2011-07-23 22:10:17 +01:00
Mike Smith
480f07a264 Typo fix. 2011-07-23 13:58:56 -07:00
Mike Smith
0df3bb2c37 Restore functions lost due to inept merging, and refactor to take advantage of them.
Address the following review feedback items:
 - use stdint types
 - avoid the use of magic numbers (define CYCCNTENA)
 - remove expository comment about sneakiness and corresponding code, replace with something simpler based on the API
 - remove commented/#if 0 code
2011-07-23 13:53:16 -07:00
James Whitlock
11c568ec50 Add in a PPM input frame size tracker.
Move update of capture values to start of new frame.
Fix an issue with setting channels to invalid.
2011-07-23 01:38:51 +01:00
James Whitlock
7a58b4cceb A quick clean of ppm code to remove white space and duplicated comments 2011-07-23 01:32:57 +01:00
Mike Smith
6bc5339015 Change the pios_delay implementation to use the CPU cycle counter rather than burning a timer. 2011-07-21 23:21:26 -07:00
Stacey Sheldon
a7cce25252 usart: fix lower usarts clobbering higher ones
The break statements are clearly missing from this
switch statement.

This would lead to problems when using more than one
USART on CC.
2011-07-22 00:30:49 -04:00
James Whitlock
7ce5daef8f Clean up of PPM code in master. 2011-07-19 20:46:24 -04:00
Stacey Sheldon
8dbace5ee2 Merge branch 'rcvr_mem_reduction'
Conflicts:
	flight/PiOS/STM32F10x/link_STM32103CB_CC_Rev1_sections.ld
2011-07-17 17:14:40 -04:00