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Add BGR byte order for WS2812 drivers (#11562)

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* add byte order bgr for ws2812

* update docs for driver change

* Update ws2812_driver.md

* Update docs/ws2812_driver.md

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

Co-authored-by: Ryan <fauxpark@gmail.com>
This commit is contained in:
kb-elmo 2021-01-15 22:42:30 +01:00 committed by GitHub
parent 0bf0977c02
commit 3d70766327
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 59 additions and 4 deletions
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3
docs/ws2812_driver.md
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@ -34,9 +34,10 @@ Some variants of the WS2812 may have their color components in a different physi
In this case, you can change the byte order by defining `WS2812_BYTE_ORDER` as one of the following values: In this case, you can change the byte order by defining `WS2812_BYTE_ORDER` as one of the following values:
|Byte order |Known devices | |Byte order |Known devices |
|-----------------------------------|-------------------------------| |---------------------------------|-----------------------------|
|`WS2812_BYTE_ORDER_GRB` (default)|Most WS2812's, SK6812, SK6805| |`WS2812_BYTE_ORDER_GRB` (default)|Most WS2812's, SK6812, SK6805|
|`WS2812_BYTE_ORDER_RGB` |WS2812B-2020 | |`WS2812_BYTE_ORDER_RGB` |WS2812B-2020 |
|`WS2812_BYTE_ORDER_BGR` |TM1812 |
### Bitbang ### Bitbang

4
drivers/chibios/ws2812.c
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@ -97,6 +97,10 @@ void ws2812_setleds(LED_TYPE *ledarray, uint16_t leds) {
sendByte(ledarray[i].r); sendByte(ledarray[i].r);
sendByte(ledarray[i].g); sendByte(ledarray[i].g);
sendByte(ledarray[i].b); sendByte(ledarray[i].b);
#elif (WS2812_BYTE_ORDER == WS2812_BYTE_ORDER_BGR)
sendByte(ledarray[i].b);
sendByte(ledarray[i].g);
sendByte(ledarray[i].r);
#endif #endif
#ifdef RGBW #ifdef RGBW

37
drivers/chibios/ws2812_pwm.c
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@ -180,6 +180,43 @@
* @return The bit index * @return The bit index
*/ */
# define WS2812_BLUE_BIT(led, bit) WS2812_BIT((led), 2, (bit)) # define WS2812_BLUE_BIT(led, bit) WS2812_BIT((led), 2, (bit))
#elif (WS2812_BYTE_ORDER == WS2812_BYTE_ORDER_BGR)
/**
* @brief Determine the index in @ref ws2812_frame_buffer "the frame buffer" of a given red bit
*
* @note The red byte is the middle byte in the color packet
*
* @param[in] led: The led index [0, @ref RGBLED_NUM)
* @param[in] bit: The bit number [0, 7]
*
* @return The bit index
*/
# define WS2812_RED_BIT(led, bit) WS2812_BIT((led), 2, (bit))
/**
* @brief Determine the index in @ref ws2812_frame_buffer "the frame buffer" of a given green bit
*
* @note The red byte is the first byte in the color packet
*
* @param[in] led: The led index [0, @ref RGBLED_NUM)
* @param[in] bit: The bit number [0, 7]
*
* @return The bit index
*/
# define WS2812_GREEN_BIT(led, bit) WS2812_BIT((led), 1, (bit))
/**
* @brief Determine the index in @ref ws2812_frame_buffer "the frame buffer" of a given blue bit
*
* @note The red byte is the last byte in the color packet
*
* @param[in] led: The led index [0, @ref RGBLED_NUM)
* @param[in] bit: The bit index [0, 7]
*
* @return The bit index
*/
# define WS2812_BLUE_BIT(led, bit) WS2812_BIT((led), 0, (bit))
#endif #endif
/* --- PRIVATE VARIABLES ---------------------------------------------------- */ /* --- PRIVATE VARIABLES ---------------------------------------------------- */

4
drivers/chibios/ws2812_spi.c
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@ -70,6 +70,10 @@ static void set_led_color_rgb(LED_TYPE color, int pos) {
for (int j = 0; j < 4; j++) tx_start[BYTES_FOR_LED * pos + j] = get_protocol_eq(color.r, j); for (int j = 0; j < 4; j++) tx_start[BYTES_FOR_LED * pos + j] = get_protocol_eq(color.r, j);
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 + 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.b, j); for (int j = 0; j < 4; j++) tx_start[BYTES_FOR_LED * pos + BYTES_FOR_LED_BYTE * 2 + j] = get_protocol_eq(color.b, j);
#elif (WS2812_BYTE_ORDER == WS2812_BYTE_ORDER_BGR)
for (int j = 0; j < 4; j++) tx_start[BYTES_FOR_LED * pos + j] = get_protocol_eq(color.b, j);
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 #endif
} }

9
quantum/color.h
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@ -37,6 +37,7 @@
#define WS2812_BYTE_ORDER_RGB 0 #define WS2812_BYTE_ORDER_RGB 0
#define WS2812_BYTE_ORDER_GRB 1 #define WS2812_BYTE_ORDER_GRB 1
#define WS2812_BYTE_ORDER_BGR 2
#ifndef WS2812_BYTE_ORDER #ifndef WS2812_BYTE_ORDER
# define WS2812_BYTE_ORDER WS2812_BYTE_ORDER_GRB # define WS2812_BYTE_ORDER WS2812_BYTE_ORDER_GRB
@ -51,6 +52,10 @@ typedef struct PACKED {
uint8_t r; uint8_t r;
uint8_t g; uint8_t g;
uint8_t b; uint8_t b;
#elif (WS2812_BYTE_ORDER == WS2812_BYTE_ORDER_BGR)
uint8_t b;
uint8_t g;
uint8_t r;
#endif #endif
} cRGB; } cRGB;
@ -66,6 +71,10 @@ typedef struct PACKED {
uint8_t r; uint8_t r;
uint8_t g; uint8_t g;
uint8_t b; uint8_t b;
#elif (WS2812_BYTE_ORDER == WS2812_BYTE_ORDER_BGR)
uint8_t b;
uint8_t g;
uint8_t r;
#endif #endif
uint8_t w; uint8_t w;
} cRGBW; } cRGBW;