flight/pios/stm32f30x/inc/pios_ws2811_cfg.h

   1 /**
   2  ******************************************************************************
   3  *
   4  * @file       pios_ws2811_cfg.h
   5  * @author     The LibrePilot Project, http://www.librepilot.org Copyright (C) 2017.
   6  * @brief      A driver for ws2811 rgb led controller.
   7  *             this is a port of the CleanFlight/BetaFlight implementation.
   8  * @see        The GNU Public License (GPL) Version 3
   9  *
  10  *****************************************************************************/
  11 /*
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 3 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful, but
  18  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  19  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  20  * for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License along
  23  * with this program; if not, write to the Free Software Foundation, Inc.,
  24  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  25  */
  26 #ifndef PIOS_WS2811_CFG_H_
  27 #define PIOS_WS2811_CFG_H_
  28
  29
  30 struct pios_ws2811_cfg {
  31     TIM_TypeDef *timer;
  32     uint8_t     timer_chan;
  33
  34     struct stm32_gpio pin;
  35     uint32_t    remap;
  36
  37
  38     uint16_t    timer_dma_source;
  39
  40     DMA_Channel_TypeDef *dma_chan;
  41
  42     uint32_t dma_tcif;
  43
  44     uint8_t  dma_irqn;
  45 };
  46
  47
  48 #define PIOS_WS2811_CONFIG(_timer, _channel, _gpio, _pin) \
  49     {                                                     \
  50         .timer = _timer,                                  \
  51         .timer_chan = TIM_Channel_##_channel,             \
  52         .pin   = {                                        \
  53             .gpio = GPIO##_gpio,                          \
  54             .init = {                                     \
  55                 .GPIO_Pin   = GPIO_Pin_##_pin,            \
  56                 .GPIO_Speed = GPIO_Speed_2MHz,            \
  57                 .GPIO_Mode  = GPIO_Mode_AF,               \
  58                 .GPIO_OType = GPIO_OType_PP,              \
  59                 .GPIO_PuPd  = GPIO_PuPd_UP                \
  60             },                                            \
  61             .pin_source     = GPIO_PinSource##_pin,       \
  62         },                                                \
  63         .remap    = GPIO_AF_P##_gpio##_pin##_##_timer, \
  64         .timer_dma_source = TIM_DMA_CC##_channel, \
  65         .dma_chan = _EVAL4(DMA, _timer##_CH##_channel##_DMA_INSTANCE, _Channel, _timer##_CH##_channel##_DMA_CHANNEL), \
  66         .dma_tcif = _EVAL4(DMA, _timer##_CH##_channel##_DMA_INSTANCE, _IT_TC, _timer##_CH##_channel##_DMA_CHANNEL), \
  67         .dma_irqn = _EVAL5(DMA, _timer##_CH##_channel##_DMA_INSTANCE, _Channel, _timer##_CH##_channel##_DMA_CHANNEL, _IRQn), \
  68     }
  69
  70 #define DMA0_Channel0      0
  71 #define DMA0_IT_TC0        0
  72 #define DMA0_Channel0_IRQn 0
  73
  74 void PIOS_WS2811_Init(uint32_t *dev_id, const struct pios_ws2811_cfg *ws2811_cfg);
  75
  76 void PIOS_WS2811_DMA_irq_handler();
  77
  78 #endif /* PIOS_WS2811_CFG_H_ */