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FIXME:
- Test F1 support
- Solve problem of duplicated bytes being TXed unless delay is
inserted after configuration but before first bytes are TXed.
Rip out nonportable bits from top-level interfaces. The USART register
maps are basically the same between F1 and F2, so leave these, but add
register bit definitions which had name changes to the libmaple header
to avoid needless repetition. There are also a few new bits in the F2
USART registers; add definitions for these in the F2 USART header. Add
Doxygen comments for all USART bit definitions.
Deprecate struct usart_dev's max_baud field. This is just bloat that
doesn't bring us much real benefit.
Add new series-specific USART files for F1 and F2:
- libmaple/stm32f[1,2]/usart.c
- libmaple/stm32f[1,2]/include/series/usart.h
These are standard series-specific files, providing register map base
pointers, defining devices, implementing nonportable routines, etc.
We need a portable way to configure the USART GPIOs. To this end, add
usart_async_gpio_cfg() to the top-level USART interface. This function
is implemented in new F1 and F2 USART backends to take the appropriate
action to configure the RX and TX pins for asynchronous full duplex
mode.
USART baud rate calculation is done differently on the different
series. Keep the usart_set_baud_rate() declaration in the top-level
USART header, but move the implementations into the series-specific
usart.c files.
In usart_set_baud_rate(), allow for deriving clock_speed automatically
by letting user tell us to figure out the peripheral clock speed by
mapping the device's rcc_clk_id onto an STM32_PCLK[1,2] value. This
preserves flexibility for users with non-default clock configurations,
but makes things easier on everyone else.
Add private USART files for portable private USART routines:
- libmaple/usart_private.h
- libmaple/usart_private.c
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Move libmaple/*.h to (new) libmaple/include/libmaple/. The new
accepted way to include a libmaple header foo.h is with:
#include <libmaple/foo.h>
This is more polite in terms of the include namespace. It also allows
us to e.g. implement the Arduino SPI library at all (which has header
SPI.h; providing it was previously impossible on case-insensitive
filesystems due to libmaple's spi.h).
Similarly for Wirish.
The old include style (#include "header.h") is now deprecated.
libmaple/*.h:
- Change include guard #defines from _FOO_H_ to _LIBMAPLE_FOO_H_.
- Add license headers where they're missing
- Add conditional extern "C" { ... } blocks where they're missing
(they aren't always necessary, but we might was well do it against
the future, while we're at it.).
- Change includes from #include "foo.h" to #include <libmaple/foo.h>.
- Move includes after extern "C".
- Remove extra trailing newlines
Note that this doesn't include the headers under libmaple/usb/ or
libmaple/usb/usb_lib. These will get fixed later.
libmaple/*.c:
- Change includes from #include "foo.h" to #include <libmaple/foo.h>.
Makefile:
- Add I$(LIBMAPLE_PATH)/include/libmaple to GLOBAL_FLAGS. This allows
for users (including Wirish) to migrate their code, but should go
away ASAP, since it slows down compilation.
Wirish:
- Move wirish/**/*.h to (new) wirish/include/wirish/. This ignores
the USB headers, which, as usual, are getting handled after
everything else.
- Similarly generify wirish/boards/ structure. For each supported
board "foo", move wirish/boards/foo.h and wirish/boards/foo.cpp to
wirish/boards/foo/include/board/board.h and
wirish/boards/foo/board.cpp, respectively. Also remove the #ifdef
hacks around the .cpp files.
- wirish/rules.mk: put wirish/boards/foo/include in the include path
(and add wirish/boards/foo/board.cpp to the list of sources to be
compiled). This allows saying:
#include <board/board.h>
instead of the hack currently in place. We can allow the user to
override this setting later to make adding custom board definitions
easier.
- Disable -Werror in libmaple/rules.mk, as the current USB warnings
don't let the olimex_stm32_h103 board compile. We can re-enable
-Werror once we've moved the board-specific bits out of libmaple
proper.
libraries, examples:
- Update includes accordingly.
- Miscellaneous cosmetic fixups.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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usart_rx() is a nonblocking USART receive. Add it for symmetry with
usart_tx().
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In keeping with convention.
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Other USART transmission functions are still blocking, but are now
implemented in terms of usart_tx().
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License header made 80-column clean. usart_irq() comment for the
USART_SAFE_INSERT case made easier to understand.
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USART refactor commit f6f9a1122706ed336c52c984d76219dee0594487 only
worked for USART1.
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* usart_enable(): Doxygen comment bugfix.
* usart_disable(): previously, usart_disable() would nuke the
entire CR1 register just to clear the UE bit.
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Add common linker scripts for ram and rom. Add medium and high density
libraries for libcs3.
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Many of the #defines in libmaple.h were board-specific, not
MCU-specific. Most of these were only used by code under
libmaple/usb/. These were moved into usb_config.h, and are clearly
marked as being terrible hacks. I'm going to treat the USB stack as a
black box that we'll deal with later.
Further, instead of having a variety of #defines like "How many USARTS
do I have?", we decide that based on the density of the chip. This is
determined by testing for STM32_MEDIUM_DENSITY or STM32_HIGH_DENSITY
defines. libmaple currently doesn't support low-density chips, so
that suffices. The Makefile will set these automatically based on the
MCU.
Other offending #defines are ERROR_LED_PORT and ERROR_LED_PIN; these
were made optional, but they're set in the Makefile as a hack to keep
things working.
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This provides DMA, IWDG, PWR, and BKP support, and fixes several bugs.
Conflicts:
libmaple/adc.h
libmaple/libmaple.h
libmaple/ring_buffer.h
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Fixed millis(), it was just wrong, before.
Added micros(), not extensively tested.
New implementation of delayMicroseconds(). Should be more consistent
now.
Added a handful of nvic routines to enable/disable interrupts.
Cleaned up systick
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Fixed a bug where the maximum baud rate was incorrectly set to 225000
General cleanup
Use new rcc and nvic APIs
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Relicensed the bulk of libmaple under the more permissive MIT License,
from GPLv3. Files that were largely or entirely derived from
the Arduino, STM, or Lanchon retain their original licenses.
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Removed inttypes.h from libmaple. Will have another pass through to use
the standard libmaple types, but will come in another commit.
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Conflicts:
Makefile
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copy-to-ide and Makefile updated to conform; .gitignore added;
LICENSE added
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