mirror of
https://github.com/Keychron/qmk_firmware.git
synced 2024-12-13 05:38:51 +06:00
208ebf54a9
* 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>
129 lines
4.2 KiB
C
129 lines
4.2 KiB
C
#include "ws2812.h"
|
|
|
|
#include "gpio.h"
|
|
#include "chibios_config.h"
|
|
|
|
// DEPRECATED - DO NOT USE
|
|
#if defined(NOP_FUDGE)
|
|
# define WS2812_BITBANG_NOP_FUDGE NOP_FUDGE
|
|
#endif
|
|
|
|
/* Adapted from https://github.com/bigjosh/SimpleNeoPixelDemo/ */
|
|
|
|
#ifndef WS2812_BITBANG_NOP_FUDGE
|
|
# if defined(STM32F0XX) || defined(STM32F1XX) || defined(GD32VF103) || defined(STM32F3XX) || defined(STM32F4XX) || defined(STM32L0XX) || defined(WB32F3G71xx) || defined(WB32FQ95xx)
|
|
# define WS2812_BITBANG_NOP_FUDGE 0.4
|
|
# else
|
|
# if defined(RP2040)
|
|
# error "Please use `vendor` WS2812 driver for RP2040"
|
|
# else
|
|
# error "WS2812_BITBANG_NOP_FUDGE configuration required"
|
|
# endif
|
|
# define WS2812_BITBANG_NOP_FUDGE 1 // this just pleases the compile so the above error is easier to spot
|
|
# endif
|
|
#endif
|
|
|
|
// Push Pull or Open Drain Configuration
|
|
// Default Push Pull
|
|
#ifndef WS2812_EXTERNAL_PULLUP
|
|
# define WS2812_OUTPUT_MODE PAL_MODE_OUTPUT_PUSHPULL
|
|
#else
|
|
# define WS2812_OUTPUT_MODE PAL_MODE_OUTPUT_OPENDRAIN
|
|
#endif
|
|
|
|
// The reset gap can be 6000 ns, but depending on the LED strip it may have to be increased
|
|
// to values like 600000 ns. If it is too small, the pixels will show nothing most of the time.
|
|
#ifndef WS2812_RES
|
|
# define WS2812_RES (1000 * WS2812_TRST_US) // Width of the low gap between bits to cause a frame to latch
|
|
#endif
|
|
|
|
#define NUMBER_NOPS 6
|
|
#define CYCLES_PER_SEC (CPU_CLOCK / NUMBER_NOPS * WS2812_BITBANG_NOP_FUDGE)
|
|
#define NS_PER_SEC (1000000000L) // Note that this has to be SIGNED since we want to be able to check for negative values of derivatives
|
|
#define NS_PER_CYCLE (NS_PER_SEC / CYCLES_PER_SEC)
|
|
#define NS_TO_CYCLES(n) ((n) / NS_PER_CYCLE)
|
|
|
|
#define wait_ns(x) \
|
|
do { \
|
|
for (int i = 0; i < NS_TO_CYCLES(x); i++) { \
|
|
__asm__ volatile("nop\n\t" \
|
|
"nop\n\t" \
|
|
"nop\n\t" \
|
|
"nop\n\t" \
|
|
"nop\n\t" \
|
|
"nop\n\t"); \
|
|
} \
|
|
} while (0)
|
|
|
|
void sendByte(uint8_t byte) {
|
|
// WS2812 protocol wants most significant bits first
|
|
for (unsigned char bit = 0; bit < 8; bit++) {
|
|
bool is_one = byte & (1 << (7 - bit));
|
|
// using something like wait_ns(is_one ? T1L : T0L) here throws off timings
|
|
if (is_one) {
|
|
// 1
|
|
gpio_write_pin_high(WS2812_DI_PIN);
|
|
wait_ns(WS2812_T1H);
|
|
gpio_write_pin_low(WS2812_DI_PIN);
|
|
wait_ns(WS2812_T1L);
|
|
} else {
|
|
// 0
|
|
gpio_write_pin_high(WS2812_DI_PIN);
|
|
wait_ns(WS2812_T0H);
|
|
gpio_write_pin_low(WS2812_DI_PIN);
|
|
wait_ns(WS2812_T0L);
|
|
}
|
|
}
|
|
}
|
|
|
|
ws2812_led_t ws2812_leds[WS2812_LED_COUNT];
|
|
|
|
void ws2812_init(void) {
|
|
palSetLineMode(WS2812_DI_PIN, WS2812_OUTPUT_MODE);
|
|
}
|
|
|
|
void ws2812_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
|
|
ws2812_leds[index].r = red;
|
|
ws2812_leds[index].g = green;
|
|
ws2812_leds[index].b = blue;
|
|
#if defined(WS2812_RGBW)
|
|
ws2812_rgb_to_rgbw(&ws2812_leds[index]);
|
|
#endif
|
|
}
|
|
|
|
void ws2812_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
|
|
for (int i = 0; i < WS2812_LED_COUNT; i++) {
|
|
ws2812_set_color(i, red, green, blue);
|
|
}
|
|
}
|
|
|
|
void ws2812_flush(void) {
|
|
// this code is very time dependent, so we need to disable interrupts
|
|
chSysLock();
|
|
|
|
for (int i = 0; i < WS2812_LED_COUNT; i++) {
|
|
// WS2812 protocol dictates grb order
|
|
#if (WS2812_BYTE_ORDER == WS2812_BYTE_ORDER_GRB)
|
|
sendByte(ws2812_leds[i].g);
|
|
sendByte(ws2812_leds[i].r);
|
|
sendByte(ws2812_leds[i].b);
|
|
#elif (WS2812_BYTE_ORDER == WS2812_BYTE_ORDER_RGB)
|
|
sendByte(ws2812_leds[i].r);
|
|
sendByte(ws2812_leds[i].g);
|
|
sendByte(ws2812_leds[i].b);
|
|
#elif (WS2812_BYTE_ORDER == WS2812_BYTE_ORDER_BGR)
|
|
sendByte(ws2812_leds[i].b);
|
|
sendByte(ws2812_leds[i].g);
|
|
sendByte(ws2812_leds[i].r);
|
|
#endif
|
|
|
|
#ifdef WS2812_RGBW
|
|
sendByte(ws2812_leds[i].w);
|
|
#endif
|
|
}
|
|
|
|
wait_ns(WS2812_RES);
|
|
|
|
chSysUnlock();
|
|
}
|