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authorkb-elmo <lorwel@mailbox.org>2021-01-15 22:42:30 +0100
committerGitHub <noreply@github.com>2021-01-16 08:42:30 +1100
commit3d70766327422bcd918b6940298f7557ab10d248 (patch)
tree4f1c68b3b48030116f939c835dd045f30d2ea41a /drivers/chibios/ws2812_pwm.c
parent0bf0977c02816c12fffc3fd75c11f66d044e0c20 (diff)
Add BGR byte order for WS2812 drivers (#11562)
* 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>
Diffstat (limited to 'drivers/chibios/ws2812_pwm.c')
-rw-r--r--drivers/chibios/ws2812_pwm.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/chibios/ws2812_pwm.c b/drivers/chibios/ws2812_pwm.c
index 3af922c063..140120d488 100644
--- a/drivers/chibios/ws2812_pwm.c
+++ b/drivers/chibios/ws2812_pwm.c
@@ -180,6 +180,43 @@
* @return The bit index
*/
# 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
/* --- PRIVATE VARIABLES ---------------------------------------------------- */