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/*
* Copyright (c) 2020 Pete Johanson
*
* SPDX-License-Identifier: MIT
*/
#include "boards/shields/corne/corne.dtsi"
/*
* PS/2 Mouse / Trackpoint
*/
// Enable PS/2 drivers on this side of the keyboard.
// MUST be the central.
//
// Comment out the following define to use the GPIO driver instead of UART
// (this is not recommended unless you can't use the UART driver for whatever
// reason)
#define MOUSE_PS2_DRIVER_UART
#ifdef MOUSE_PS2_DRIVER_UART
&uart0 {
status = "okay";
};
&uart_ps2 {
status = "okay";
};
#else
&gpio_ps2 {
status = "okay";
};
#endif
&mouse_ps2 {
status = "okay";
#ifdef MOUSE_PS2_DRIVER_UART
ps2-device = <&uart_ps2>;
#else
ps2-device = <&gpio_ps2>;
#endif
};
&input_config {
status = "okay";
};
// Adjust GPIO interrupt priority to the highest level.
//
// PS/2 events must be processed within 30-50us, but frequently bluetooth and
// other interrupts take longer to finish.
//
// Therefore we change the default GPIO priority to the highest level (0) and
// demote all BT interrupt priorities by one level using the kconfig settings:
// - CONFIG_BT_CTLR_LLL_PRIO 1
// - CONFIG_BT_CTLR_ULL_HIGH_PRIO 2
// - CONFIG_BT_CTLR_ULL_LOW_PRIOCONFIG 2
//
// These config options are enabled automatically by the PS2 UART and GPIO
// drivers... so you don't have to enable them manually.
//
// Then we lower the interrupt priority of all other devices by 2 levels using
// the devicetree config below.
//
// This allows the PS/2 interrupts to be triggered faster and reduces
// transmission errors.
//
// If you are using the nice_nano_v2 board, you can reuse my config below.
//
// Otherwise, you can generate the interrupt overrides using the following
// script in my zmk fork with the PS/2 mouse driver:
// app/scripts/gen_interrupt_priority_overrides.py
//
// Make sure to do it on a zephyr.dts where the interrupts have not been
// adjusted yet (i.e. a config that doesn't have the the following options
// enabled).
//
// If you are building using a toolchain you can find the zephyr.dts in the
// build directory, which by default is: `app/build/zephyr/zephyr.dts`
//
// If you are building using the github actions, copy the output of the build
// step `xxxx_right - nice_nano_v2 Devicetree file` into a file and run the
// script on it.
// gpiote should have the highest interrupt priority (0)
&gpiote {
interrupts = < 6 0 >;
};
// All other priorities should be two levels lower than their defaults
// (which is usually 1 and should be demoted to 3)
&clock {
interrupts = < 0 3 >;
};
&power {
interrupts = < 0 3 >;
};
&radio {
interrupts = < 1 3 >;
};
&uart0 {
interrupts = < 2 3 >;
};
&i2c0 {
interrupts = < 3 3 >;
};
&spi0 {
interrupts = < 3 3 >;
};
&i2c1 {
interrupts = < 4 3 >;
};
&spi1 {
interrupts = < 4 3 >;
};
&nfct {
interrupts = < 5 3 >;
};
&adc {
interrupts = < 7 3 >;
};
&timer0 {
interrupts = < 8 3 >;
};
&timer1 {
interrupts = < 9 3 >;
};
&timer2 {
interrupts = < 10 3 >;
};
&rtc0 {
interrupts = < 11 3 >;
};
&temp {
interrupts = < 12 3 >;
};
&rng {
interrupts = < 13 3 >;
};
&ecb {
interrupts = < 14 3 >;
};
&ccm {
interrupts = < 15 3 >;
};
&wdt {
interrupts = < 16 3 >;
};
&rtc1 {
interrupts = < 17 3 >;
};
&qdec {
interrupts = < 18 3 >;
};
&comp {
interrupts = < 19 3 >;
};
&egu0 {
interrupts = < 20 3 >;
};
&egu1 {
interrupts = < 21 3 >;
};
&egu2 {
interrupts = < 22 3 >;
};
&egu3 {
interrupts = < 23 3 >;
};
&egu4 {
interrupts = < 24 3 >;
};
&egu5 {
interrupts = < 25 3 >;
};
&timer3 {
interrupts = < 26 3 >;
};
&timer4 {
interrupts = < 27 3 >;
};
&pwm0 {
interrupts = < 28 3 >;
};
&pdm0 {
interrupts = < 29 3 >;
};
&pwm1 {
interrupts = < 33 3 >;
};
&pwm2 {
interrupts = < 34 3 >;
};
&spi2 {
interrupts = < 35 3 >;
};
&rtc2 {
interrupts = < 36 3 >;
};
&i2s0 {
interrupts = < 37 3 >;
};
&usbd {
interrupts = < 39 3 >;
};
&uart1 {
interrupts = < 40 3 >;
};
&qspi {
interrupts = < 41 3 >;
};
&pwm3 {
interrupts = < 45 3 >;
};
&spi3 {
interrupts = < 47 3 >;
};
&cryptocell {
interrupts = < 42 3 >;
};
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