working example

drivers/arm/ws2812.h

@@ -1,102 +1,31 @@
-/**
- * @file    ws2812.h
- * @author  Austin Glaser <austin.glaser@gmail.com>
- * @brief   Interface to WS2812 LED driver
+/*
+ * LEDDriver.h
  *
- * Copyright (C) 2016 Austin Glaser
- *
- * This software may be modified and distributed under the terms
- * of the MIT license.  See the LICENSE file for details.
- *
- * @todo    Put in names and descriptions of variables which need to be defined to use this file
+ *  Created on: Aug 26, 2013
+ *      Author: Omri Iluz
  */
 
 #ifndef WS2812_H_
 #define WS2812_H_
 
-/**
- * @defgroup WS2812 WS2812 Driver
- * @{
- *
- * @brief   DMA-based WS2812 LED driver
- *
- * A driver for WS2812 LEDs
- */
-
-/* --- PUBLIC DEPENDENCIES -------------------------------------------------- */
-
-// Standard
-#include <stdint.h>
+#include "hal.h"
 #include "rgblight_types.h"
 
-/* --- PUBLIC CONSTANTS ----------------------------------------------------- */
+#define sign(x) (( x > 0 ) - ( x < 0 ))
 
-/**
- * @brief   Return codes from ws2812 interface functions
- */
-typedef enum {
-    WS2812_SUCCESS      = 0x00,     /**< Operation completeed successfully */
-    WS2812_LED_INVALID,             /**< Attempted to index an invalid LED (@ref WS2812_N_LEDS) */
-    MAX_WS2812_ERR,                 /**< Total number of possible error codes */
-    WS2812_ERR_INVALID              /**< Invalid error value */
-} ws2812_err_t;
+typedef struct Color Color;
+struct Color {
+  uint8_t R;
+  uint8_t G;
+  uint8_t B;
+};
 
-/* --- PUBLIC FUNCTIONS ----------------------------------------------------- */
-
-/**
- * @brief   Initialize the driver
- *
- * After this function is called, all necessary background tasks will be started.
- * The frame is initially dark.
- */
-void ws2812_init(void);
-
-/**
- * @brief   Write the value of a single LED in the chain
- *
- * The color value is written to a frame buffer, and will not
- * be updated until the next frame is written. Frames are written
- * at the maximum possible speed -- the longest latency between a
- * call to this function and the value being displayed is
- * 1.25uS*(24*@ref WS2812_LED_N + 50)
- *
- * @param[in] led_number:           The index of the LED to be written. Must be strictly less than
- *                                  @ref WS2812_N_LEDS
- * @param[in] r:                    The red level of the LED
- * @param[in] g:                    The green level of the LED
- * @param[in] b:                    The blue level of the LED
- *
- * @retval WS2812_SUCCESS:          The write was successful
- * @retval WS2812_LED_INVALID:      The write was to an invalid LED index
- */
-ws2812_err_t ws2812_write_led(uint32_t led_number, uint8_t r, uint8_t g, uint8_t b);
-
-/** @} defgroup WS2812 */
+void ledDriverInit(int leds, stm32_gpio_t *port, uint32_t mask, uint8_t **o_fb);
+void setColorRGB(Color c, uint8_t *buf, uint32_t mask);
+void testPatternFB(uint8_t *fb);
+void ledDriverWaitCycle(void);
 
 void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds);
 void ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t number_of_leds);
 
-/**
- * @brief   Concatenates two symbols s1 and s2 exactly, without expanding either
- *
- * @param[in] s1:       The first symbol to concatenate
- * @param[in] s2:       The second symbol to concatenate
- *
- * @return              A single symbol containing s1 and s2 concatenated without expansion
- */
-#define CONCAT_SYMBOLS(s1, s2)     s1##s2
-
-/**
- * @brief  Concatenate the symbols s1 and s2, expanding both of them
- *
- * This is important because simply applying s1##s2 doesn't expand them if they're
- * preprocessor tokens themselves
- *
- * @param[in] s1:       The first symbol to concatenate
- * @param[in] s2:       The second symbol to concatenate
- *
- * @return              A single symbol containing s1 expanded followed by s2 expanded
- */
-#define CONCAT_EXPANDED_SYMBOLS(s1, s2)  CONCAT_SYMBOLS(s1, s2)
-
-#endif /* WS2812_H_ */
+#endif /* LEDDRIVER_H_ */