keychron_qmk_firmware/drivers/ws2812.h
Ryan 208ebf54a9
WS2812 API rework (#24364)
* Begin WS2812 API rework

* Move RGBW conversion, clean up color.h, fix RGBW for AVR bitbang

* Formatting & update PS2AVRGB I2C driver (untested)

* Tested ARM bitbang RGB+RGBW

* Tested ARM SPI RGB - RGBW not working

* Tested ARM PWM RGB+RGBW

* Tested RP2040 PIO driver RGB+RGBW

* Update RGBLight

* Formatting

* Fix BM60HSRGB rev2

* Fix oddforge/vea

* Fix 1k and XD002 RGBLite

* Fix model_m/mschwingen

* Fix handwired/promethium

* Rename `WS2812_LED_TOTAL` for BM60HSRGB

* Fix work_louder boards

* Fix dawn60

* Fix rgbkb/pan

* Fix neson_design/700e and n6

* Fix ergodox_ez/shine

* ergodox_ez/shine: invert indices for left half

* Fix matrix/abelx

* Fix matrix/m20add

* Remove custom rgblight driver for matrix/noah - should be done with lighting layers

* Fix LED indexes for RGBLight split

* Rename `convert_rgb_to_rgbw()` to `ws2812_rgb_to_rgbw()`

* Update WS2812 API docs

* `ergodox_ez/shine`: simplify LED index calculation

* LED/RGB Matrix: Add weak function for LED index resolution

* Bandaid fix for RGB Matrix splits not using WS2812

* `steelseries/prime_plus`: redo custom RGBLight driver

* Update keyboards/steelseries/prime_plus/rgblight_custom.c

Co-authored-by: Dasky <32983009+daskygit@users.noreply.github.com>

---------

Co-authored-by: Dasky <32983009+daskygit@users.noreply.github.com>
2024-10-06 21:01:07 +13:00

98 lines
2.9 KiB
C

/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "util.h"
/*
* The WS2812 datasheets define T1H 900ns, T0H 350ns, T1L 350ns, T0L 900ns. Hence, by default, these
* are chosen to be conservative and avoid problems rather than for maximum throughput; in the code,
* this is done by default using a WS2812_TIMING parameter that accounts for the whole window (1250ns)
* and defining T1H and T0H; T1L and T0L are obtained by subtracting their low counterparts from the window.
*
* However, there are certain "WS2812"-like LEDs, like the SK6812s, which work in a similar
* communication topology but use different timings for the window and the T1L, T1H, T0L and T0H.
* This means that, albeit the same driver being applicable, the timings must be adapted.
*/
#ifndef WS2812_TIMING
# define WS2812_TIMING 1250
#endif
#ifndef WS2812_T1H
# define WS2812_T1H 900 // Width of a 1 bit in ns
#endif
#ifndef WS2812_T1L
# define WS2812_T1L (WS2812_TIMING - WS2812_T1H) // Width of a 1 bit in ns
#endif
#ifndef WS2812_T0H
# define WS2812_T0H 350 // Width of a 0 bit in ns
#endif
#ifndef WS2812_T0L
# define WS2812_T0L (WS2812_TIMING - WS2812_T0H) // Width of a 0 bit in ns
#endif
/*
* Older WS2812s can handle a reset time (TRST) of 50us, but recent
* component revisions require a minimum of 280us.
*/
#if !defined(WS2812_TRST_US)
# define WS2812_TRST_US 280
#endif
#if defined(RGBLIGHT_WS2812)
# define WS2812_LED_COUNT RGBLIGHT_LED_COUNT
#elif defined(RGB_MATRIX_WS2812)
# define WS2812_LED_COUNT RGB_MATRIX_LED_COUNT
#endif
#define WS2812_BYTE_ORDER_RGB 0
#define WS2812_BYTE_ORDER_GRB 1
#define WS2812_BYTE_ORDER_BGR 2
#ifndef WS2812_BYTE_ORDER
# define WS2812_BYTE_ORDER WS2812_BYTE_ORDER_GRB
#endif
typedef struct PACKED ws2812_led_t {
#if (WS2812_BYTE_ORDER == WS2812_BYTE_ORDER_GRB)
uint8_t g;
uint8_t r;
uint8_t b;
#elif (WS2812_BYTE_ORDER == WS2812_BYTE_ORDER_RGB)
uint8_t r;
uint8_t g;
uint8_t b;
#elif (WS2812_BYTE_ORDER == WS2812_BYTE_ORDER_BGR)
uint8_t b;
uint8_t g;
uint8_t r;
#endif
#ifdef WS2812_RGBW
uint8_t w;
#endif
} ws2812_led_t;
void ws2812_init(void);
void ws2812_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
void ws2812_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
void ws2812_flush(void);
void ws2812_rgb_to_rgbw(ws2812_led_t *led);