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* command: Fix handling of buffer passing in args[] on 64bit mcuKevin O'Connor2020-10-301-0/+6
| | | | | | | | If the buffer pointer can't fit in a uint32_t then pass a relative buffer offset instead. This fixes buffer handling on 64bit linux mcus. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: userspace GPIO controlandryblack2020-05-171-1/+1
| | | | | | Allow use host GPIO pins for non-realtime purposes. Signed-off-by: Andrey Kunitsyn <blackicebox@gmail.com>
* command: Add command_find_and_dispatch() helperKevin O'Connor2018-05-281-3/+1
| | | | | | | Add a helper function that calls command_find_block() followed by command_dispatch(). Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* command: Add a command_encode_and_frame() helperKevin O'Connor2018-05-281-2/+1
| | | | | | | Add a helper function that calls command_encodef() followed by command_add_frame(). Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* command: Prefer uint8_t* for buffers; prefer uint8_fast_t for lengthsKevin O'Connor2018-05-281-4/+4
| | | | | | | | | Prefer using 'uint8_t' buffers as it is too easy to run into C sign extension problems with 'char' buffers. Prefer using 'uint_fast8_t' for buffer lengths as gcc does a better job compiling them on 32bit mcus. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: Add support for pca9685 i2c pwm devicesKevin O'Connor2017-09-201-2/+2
| | | | | | | Add support for controlling pca9685 PWM drivers using the standard Linux I2C interface. The pca9685 device is found on Replicape boards. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: Initial support for running Klipper in a Linux real-time processKevin O'Connor2017-09-201-0/+210
Add support for compiling the Klipper micro-controller code as a real-time process capable of running on standard Linux systems. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>