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Change from __always_inline to plain inline to silence warnings about
possibly non-inlinable functions.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Add a spi_private.h with a SPI_DEV(), for convenience. Use it in the
F1 and F2 implementations. We could probably unify these with an
STM32_HAVE_SPI(n) macro, but we'll leave that for the future.
Most everything from F1 is portable; F2 has some additional bit
definitions and a spi_get_af() routine, but that's about it.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Stupidly, spi_gpio_cfg() didn't take a spi_dev* argument on F1,
because it doesn't matter there. On F2, where we need to set an
alternate function when configuring GPIOs for SPI, we need to know the
dev.
We can't add break backwards compatibility, so we need a new
function. However, we've since added a bunch of foo_gpio_cfg()
routines, and we don't want confusing asymmetry in the names. So a
global style change is needed. (Fortunately, the new functions weren't
part of a release, so it's no problem to change their names).
Change all foo_gpio_cfg() routines to foo_config_gpios() (or
foo_config_gpio(), if there's only one GPIO to configure). For
backwards compatibility, make spi_gpio_cfg() on F1 an __always_inline
call to spi_config_gpios().
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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