mirror of
https://bitbucket.org/librepilot/librepilot.git
synced 2024-12-02 10:24:11 +01:00
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
|
/**
|
||
|
|
******************************************************************************
|
||
|
|
*
|
||
|
|
* @file pios_ws2811.h
|
||
|
|
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2014.
|
||
|
|
* @brief A driver for ws2811 rgb led controller.
|
||
|
|
* this is a plain PiOS port of the very clever solution
|
||
|
|
* implemented by Omri Iluz in the chibios driver here:
|
||
|
|
* https://github.com/omriiluz/WS2812B-LED-Driver-ChibiOS
|
||
|
|
* @see The GNU Public License (GPL) Version 3
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
/*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation; either version 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful, but
|
||
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||
|
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||
|
|
* for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License along
|
||
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||
|
|
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
|
|
*/
|
||
|
|
#ifndef PIOS_WS2811_H_
|
||
|
|
#define PIOS_WS2811_H_
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <pios_gpio.h>
|
||
|
|
#include <pios_stm32.h>
|
||
|
|
#include <pios_gpio_priv.h>
|
||
|
|
#include <stm32f4xx.h>
|
||
|
|
#include <stm32f4xx_tim.h>
|
||
|
|
#include <stm32f4xx_dma.h>
|
||
|
|
|
||
|
|
|
||
|
|
#define sign(x) ((x > 0) - (x < 0))
|
||
|
|
#define PIOS_WS2811_NUMLEDS 2
|
||
|
|
#define PIOS_WS2811_BUFFER_SIZE (((PIOS_WS2811_NUMLEDS) * 24))
|
||
|
|
#define PIOS_WS2811_MEMORYDATASIZE DMA_MemoryDataSize_HalfWord
|
||
|
|
#define PIOS_WS2811_PERIPHERALDATASIZE DMA_PeripheralDataSize_HalfWord
|
||
|
|
#define PIOS_WS2811_TIM_PERIOD 20
|
||
|
|
|
||
|
|
typedef uint16_t ledbuf_t;
|
||
|
|
|
||
|
|
typedef struct Color Color;
|
||
|
|
struct Color {
|
||
|
|
uint8_t R;
|
||
|
|
uint8_t G;
|
||
|
|
uint8_t B;
|
||
|
|
};
|
||
|
|
struct pios_ws2811_pin_cfg{
|
||
|
|
GPIO_TypeDef *gpio;
|
||
|
|
GPIO_InitTypeDef gpioInit;
|
||
|
|
};
|
||
|
|
struct pios_ws2811_cfg {
|
||
|
|
TIM_TimeBaseInitTypeDef timerInit;
|
||
|
|
TIM_TypeDef *timer;
|
||
|
|
uint8_t timerCh1;
|
||
|
|
uint8_t timerCh2;
|
||
|
|
|
||
|
|
DMA_InitTypeDef dmaInitCh1;
|
||
|
|
DMA_Stream_TypeDef *streamCh1;
|
||
|
|
uint32_t dmaItCh1;
|
||
|
|
|
||
|
|
DMA_InitTypeDef dmaInitCh2;
|
||
|
|
DMA_Stream_TypeDef *streamCh2;
|
||
|
|
uint32_t dmaItCh2;
|
||
|
|
|
||
|
|
DMA_InitTypeDef dmaInitUpdate;
|
||
|
|
DMA_Stream_TypeDef *streamUpdate;
|
||
|
|
uint32_t dmaItUpdate;
|
||
|
|
uint16_t dmaSource;
|
||
|
|
struct stm32_irq irq;
|
||
|
|
};
|
||
|
|
|
||
|
|
void PIOS_WS2811_Init(const struct pios_ws2811_cfg *ws2811_cfg, const struct pios_ws2811_pin_cfg *ws2811_pin_cfg);
|
||
|
|
|
||
|
|
void PIOS_WS2811_setColorRGB(Color c, uint8_t led, bool update);
|
||
|
|
void PIOS_WS2811_Update();
|
||
|
|
|
||
|
|
void PIOS_WS2811_DMA_irq_handler();
|
||
|
|
|
||
|
|
#endif /* PIOS_WS2811_H_ */
|