| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Fix whitespace, move some definitions around.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Standard family support refactoring: add STM32F1 series spi.h, spi.c,
and move anything that won't port to STM32F2 there.
As part of a general effort to be cleaner, remove the dependency on
libmaple/util.h from libmaple/spi.h by not using BIT(). Also forward
declare struct gpio_dev for spi_gpio_cfg() to remove that include.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Update Doxygen file headers and license copyright dates.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Currently passing on STM32F2.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Standard series peripheral support patch, containing STM32F2 series
timer.h and timer.c.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This is necessary to make some timer code portable, but I'm not sure
it's a good idea.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This applies to XL-density STM32F1 devices.
In stm32f1/timer.c, add timer_dev's for the new timers, using the
timer_private API. These definitions are conditionally compiled based
on the target density to avoid wasting space on smaller MCUs. Also add
calls to the appropriate timer_private.h dispatch routines within the
IRQ handlers for these timers. We need to change the IRQ handler names
to reflect this eventually, but put that off for now, as it could
break backwards compatibility in some exotic situations where the user
refers to the libmaple IRQ handlers directly.
In stm32f1/timer.h, add register map base pointers and device
declarations for the new timers. timer_dev* declarations are compiled
in only when the target MCU supports them, in keeping with the above
stm32f1/timer.c changes.
In libmaple/timer.c, update the (static) IRQ enable routines to
account for the additional timers. This adds some code that's
unnecessary on smaller STM32F1s, but it's minimal (40 extra bytes on
my machine), so portability and readability win out.
Size change, using GCC version "(Sourcery G++ Lite 2011.03-42) 4.5.2":
Before:
text data bss dec hex filename
615 0 0 615 267 build/home/mbolivar/leaf/libmaple/libmaple/timer.o
After:
text data bss dec hex filename
655 0 0 655 28f build/home/mbolivar/leaf/libmaple/libmaple/timer.o
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Add DECLARE_RESTRICTED_GENERAL_TIMER(), for declaring general-purpose
timers with limited interrupt support -- that is, for declaring timers
9 through 14. This helps avoid wasting space on pointers to user
handlers for interrupts that don't exist.
Add dispatch_tim_9_12() and dispatch_tim_10_11_13_14(), which are
special purpose dispatch routines for these "restricted" general
purpose timers, which only try to dispatch interrupts supported by
these timers.
Change dispatch_single_irq() to check the logical and of the DIER and
SR registers for the timer whose interrupt it's dispatching. This is
necessary due to increased muxing on the timer IRQ lines caused by the
new timers. See the comment in the patch for more details. This does
add overhead on medium- and high-density STM32F1s, where the extra
check is unnecessary, but it doesn't change dispatch_single_irq()'s
semantics, and keeps the implementation simple, so we'll live with it.
These changes will also work on F2 (and F4 AFAIK), which is why
they're part of the global private timer API, as opposed to
libmaple/stm32f1/timer.c.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Hopefully these will be helpful when adding timer support for
additional series in the future.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This is a backwards-compatible change, but it deprecates some existing
functionality.
XL density STM32F1 devices have additional timers 9 through 14. These
share NVIC lines with timers 1 and 8. This scheme is also used on
e.g. STM32F2, so the corresponding nvic_irq_num enumerators on that
series have names like "NVIC_TIMER1_BRK_TIMER9" instead of
"NVIC_TIMER1_BRK". For portability (and XL-density support), it makes
sense to add these enumerators to the F1 version of nvic_irq_num,
which we do here.
For backwards compatibility, we keep the old enumerators (like
NVIC_TIMER1_BRK) around as aliases to the new ones (like
NVIC_TIMER1_BRK_TIMER9). These old enumerators are now deprecated.
Also fix up the Doxygen @file header.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This lets Doxygen pick it up.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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The timer enumerators are different tokens on F2 than they are on F1.
This is wrong (breaks portability), so fix it, and update the F2
rcc_dev_info table to match.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Comments etc.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Fix copy-paste errors in, and add missing, register bit
definitions. For copy-paste errors that would result in source
incompatibilities with past releases, add some legacy defines.
Add series header and C file for STM32F1 which fills in the missing
API. Much of the F1 timer.c would be repeated on F2, so also add
timer_private.h to hold these.
Support for timers 9 through 14 is still missing.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Whether or not a given peripheral is present on an F1 series MCU
doesn't matter. It doesn't take up any extra space to include these
enumerators, and it's convenient to have them defined so portable
libmaple routines can safely refer to them. This can prevent the need
for special series-specific versions of some functions.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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We need this to ensure inlining when compiled with -Os.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Fix include guard define name, update copyright, fix Doxygen @file.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Assert LeafLabs copyright; fix Doxygen @file, and add missing include.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This function has been with us from the earliest days of libmaple.
It's showing its age, as the API it presents is tied to the
STM32F1. Deprecate it, and provide instructions for how to use newer,
more portable APIs. The new way is more verbose, but we can always add
a portable "just set up the PLL, dammit" convenience function later (a
nice candidate is to extract an interface from setup_clocks() in
boards.cpp).
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Standard refactoring: add series headers for F1 and F2, along with
series adc.c files. There are some issues relating to adc_extsel_event
to hammer out later, but this will do for now.
We also add some new portability interfaces to libmaple/adc.h in order
for Wirish to use the same code to initialize the ADCs at init() time.
As usual, F1 is untested.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Some general notes on the various STM32 series.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This peripheral is identical on F1 and F2.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Just add the missing register bit definitions in new series headers.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Alphabetize targets and remove continuation lines.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This is a backwards-incompatible change. It is necessary to fix an
error.
The register bit definitions are given as if they were masks, but
they're actually bit numbers. E.g., PWR_CR_DBP, which should be the
mask for DBP in the power control register PWR_CR, is actually the
number of the bit that should be masked.
Fix this by adding _BIT to the definitions and adding proper
masks. Also add a mask for the PVD level selection bits in
PWR_CSR. Don't add any mask values for particular voltages selected as
these are not portable.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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fsmc_sram_init_gpios() is now series-specific, so move its existing
implementation to the F1 backend, and add libmaple/stm32f2/fsmc.c for
the F2 backend.
Delete libmaple/fsmc.c; it is now empty.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This is a feature test macro for the flexible static memory
controller (FSMC) peripheral.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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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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Add GPIO_AFRL and GPIO_AFRH bit definitions; these seem to have been
overlooked. Add enum gpio_af to give labels to the various
functions. Add gpio_set_af() convenience routine for configuring a
GPIO's alternate function.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This is a convenience function for checking if a clock line is on.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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New style makes for cleaner diffs.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Fix include guard name. Remove unused STM32_FLASH_WAIT_STATES (which
was superseded by FLASH_SAFE_WAIT_STATES).
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This is just an alias for __attribute__((weak)).
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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FIXME:
- F1 support currently appears to be failing in start_c.c, for some
unknown reason. This will need to get sorted out later.
Add a new wirish namespace, and a sub-namespace wirish::priv::. Put a
bunch of board setup routines in this namespace, and declare them in
new wirish/boards_private.h. boards.cpp uses this to perform
initialization tasks in a portable way, with two new boards_setup.cpp
files under wirish/stm32f1 and wirish/stm32f2 handling the
series-specific details.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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The new style for configuring the PLL is to initialize
a (series-specific) struct rcc_pll_cfg, and pass a pointer to it to
rcc_configure_pll(). After that's done, you can use
rcc_turn_on_clk(RCC_CLK_PLL) to turn on the main PLL, and busy-wait
until rcc_is_clk_ready(RCC_CLK_PLL) is true to make sure the new
configuration took effect.
- libmaple/rcc.h:
-- Add struct rcc_pll_cfg, which specifies a PLL configuration. This
specifies a PLL source and a void pointer to series-specific PLL
configuration data.
-- Add rcc_configure_pll(), which takes a pointer to struct
rcc_pll_cfg, and configures the main PLL. It's up to each series
to define this function.
- stm32f1/rcc.h: Add struct stm32f1_rcc_pll_data, to store F1-specific
PLL configuration state.
- stm32f1/rcc.c: Add an implementation for rcc_configure_pll().
- stm32f2/rcc.h: Add struct stm32f2_rcc_pll_data, to store F2-specific
PLL configuration data.
- stm32f2/rcc.c: Add an implementation for rcc_configure_pll().
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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We're going to replace this with a more portable mechanism.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This is a define for __attribute__((deprecated)).
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Additions:
- rcc_switch_sysclk():
For changing the clock used as SYSCLK's source.
- enum rcc_clk:
One for each system and secondary clock source (e.g. HSE,
LSE). These are defined on a per-series basis in each of the
<series/rcc.h>.
- rcc_turn_on_clk(),
rcc_turn_off_clk(),
rcc_is_clk_ready():
For turning on system and secondary clock sources, and checking
whether or not they're ready. Uses enum rcc_clk.
Removals:
- rcc_clk_init(): There's no way to port this to F2. Move it to the F1
header. This also means we can remove the empty implementation and
enum rcc_pll_multiplier from the F2 RCC header, where it doesn't
make any sense.
Also fix up some includes, and rewrite rcc_clk_init() in terms of the
new clock source management functions.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Make a single function, flash_enable_features(), to control the access
characteristics of Flash memory (i.e. to write to the non-latency bits
of ACR).
In so doing, make everybody pretend to allow instruction and data
caching. On STM32F1, trying to turn these on simply has no
effect. This allows unconditionally trying to turn them on, which will
simplify users' lives.
This has the ancillary benefit of making the stm32f2- and
stm32f1-specific flash.c files unnecessary; delete these.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This supports ST's STM3220G-EVAL, the standard "kitchen-sink"
evaluation board for the STM32F2 series.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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