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Add RGBW support to PWM and SPI drivers for ChibiOS (#14327)

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* Add RGBW support to PWM and SPI drivers for ChibiOS

* Apply suggestions from code review

Co-authored-by: Ryan <fauxpark@gmail.com>

Co-authored-by: Ryan <fauxpark@gmail.com>
This commit is contained in:
Drashna Jaelre 2021-09-18 00:28:57 -07:00 • committed by GitHub
parent 0760093978
commit 7c10d00ca6
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 44 additions and 9 deletions
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15
platforms/chibios/drivers/ws2812_spi.c
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@ -3,10 +3,6 @@
/* Adapted from https://github.com/gamazeps/ws2812b-chibios-SPIDMA/ */
#ifdef RGBW
# error "RGBW not supported"
#endif
// Define the spi your LEDs are plugged to here
#ifndef WS2812_SPI
# define WS2812_SPI SPID1
@ -74,8 +70,12 @@
#endif
#define BYTES_FOR_LED_BYTE 4
#define NB_COLORS 3
#define BYTES_FOR_LED (BYTES_FOR_LED_BYTE * NB_COLORS)
#ifdef RGBW
# define WS2812_CHANNELS 4
#else
# define WS2812_CHANNELS 3
#endif
#define BYTES_FOR_LED (BYTES_FOR_LED_BYTE * WS2812_CHANNELS)
#define DATA_SIZE (BYTES_FOR_LED * RGBLED_NUM)
#define RESET_SIZE (1000 * WS2812_TRST_US / (2 * 1250))
#define PREAMBLE_SIZE 4
@ -116,6 +116,9 @@ static void set_led_color_rgb(LED_TYPE color, int pos) {
for (int j = 0; j < 4; j++) tx_start[BYTES_FOR_LED * pos + BYTES_FOR_LED_BYTE + j] = get_protocol_eq(color.g, j);
for (int j = 0; j < 4; j++) tx_start[BYTES_FOR_LED * pos + BYTES_FOR_LED_BYTE * 2 + j] = get_protocol_eq(color.r, j);
#endif
#ifdef RGBW
for (int j = 0; j < 4; j++) tx_start[BYTES_FOR_LED * pos + BYTES_FOR_LED_BYTE * 4 + j] = get_protocol_eq(color.w, j);
#endif
}
void ws2812_init(void) {