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Add support for parsing the "linux,keymap" property.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Future additions will make the function too big to live as a static
inline function. Move to a C file and while at it, move matrix_keypad.h
to include/input/ where it belongs to.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Currently all input driver register themselves as consoles. Consoles are
fine for typing text, but they do not allow to ask for the current
pressed state of buttons or keypads. They also do not support non
printable keys like the function keys.
This patch adds a simple input core. On the driver side it supports
input_report_key_event() to report events (button presses and releases).
On the consumer side it allows getting the current button status via
input_key_get_status(). Also an event driven interface is available
which calls a callback whenever an input event is received.
The input core also registers a console for all registered input
devices which handles passing events to the console and stuff like key
repetition, so this can be removed from the drivers once they are
converted to the input core.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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When converting keys to ascii for the console we also need the
keymap with shift pressed.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Devicetrees specify the keyboard codes for the gpio-keys
driver, so add a table to translate them into something
barebox can use.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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use irq pin as the pin is asserted untill we clear it
This will allow to do not poll on i2c which slow down barebox
If no irq_pin is provided fall back on i2c polling
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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