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path: root/keyboards/planck/rev6_drop/matrix.c
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2022-07-11[Core] Use polled waiting on ChibiOS platforms that support it (#17607)Stefan Kerkmann
* Use polled waiting on platforms that support it Due to context switching overhead waiting a very short amount of time on a sleeping thread is often not accurate and in fact not usable for timing critical usage i.e. in a driver. Thus we use polled waiting for ranges in the us range on platforms that support it instead. The fallback is the thread sleeping mechanism. This includes: * ARM platforms with CYCCNT register (ARMv7, ARMv8) this is incremented at CPU clock frequency * GD32VF103 RISC-V port with CSR_MCYCLE register this is incremented at CPU clock frequency * RP2040 ARMv6 port which uses the integrated timer peripheral which is incremented with a fixed 1MHz frequency * Use wait_us() instead of chSysPolledDelayX ...as it is powered by busy waiting now. * Add chibios waiting methods test bench
2021-09-19[Keyboard] Enables I2C for OLKB rev*_drop boards (#14514)Jack Humbert
Co-authored-by: daskygit <32983009+daskygit@users.noreply.github.com>
2021-09-18[Keyboard] Use old custom matrix for Drop Planck+Preonic (#14488)Drashna Jaelre
Co-authored-by: Ryan <fauxpark@gmail.com> Co-authored-by: Jack Humbert <jack.humb@gmail.com>