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Signed-off-by: Keith Packard <keithp@keithp.com>
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Signed-off-by: Keith Packard <keithp@keithp.com>
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This lets us use port bits greater than 7 for M25 chip selects
Signed-off-by: Keith Packard <keithp@keithp.com>
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This uses ao_port_t for all of the chip select masks
Signed-off-by: Keith Packard <keithp@keithp.com>
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This is just chip-specific info that no UI actually needs. It takes a
bunch of ROM to write it though, making TeleMetrum not have much space left.
Signed-off-by: Keith Packard <keithp@keithp.com>
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When the radio drops out of RX or TX mode due to an error, it changes
the MARC status, and sends pulse down a configured GPIO. Use this to
tell when something 'bad' happened during TX or RX so that we can
recover from losing the SPI bus in the middle of transmission or
reception.
Without this, the radio would change state and we'd never know,
leaving the radio code waiting for an interrupt that would never arrive.
Signed-off-by: Keith Packard <keithp@keithp.com>
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HAS_BOOT_RADIO causes the m25 driver to abort any ongoing receive in
case that is holding the SPI bus.
Signed-off-by: Keith Packard <keithp@keithp.com>
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STM needs it to be provided when enabling the SPI device, so just fix
AVR and cc1111 to do the same.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Radio receive camps on the SPI bus, making it impossible to access
flash memory. Abort any pending receive operation when trying to get
to the flash part.
Yes, this is a total hack.
Signed-off-by: Keith Packard <keithp@keithp.com>
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The STM32L151 has several SPI busses, and we want to use more than
one, so add a 'bus' parameter to the SPI interfaces. To avoid wasting
time on AVR and CC1111 processors which only use one SPI bus, elide
those parameters from the actual functions by wrapping them with
macros.
Configuring chip select is now all macroized so that each chip can
have its own version, allowing the STM to share the various SPI device
drivers with the cc1111 and avr processors. Note that only the M25
driver has been ported; porting the others is 'trivial', but not
necessary at this point.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Adds a few drivers including an LCD driver
Signed-off-by: Keith Packard <keithp@keithp.com>
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Split out sources into separate directories:
core: architecture and product independent bits
cc1111: cc1111-specific code
drivers: architecture independent drivers
product: product-specific sources and Makefile fragments
util: scripts for building stuff
This should have no effect on the built products, but testing is encouraged
Signed-off-by: Keith Packard <keithp@keithp.com>
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