pios_stm32.h

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/* 
 * 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, see <http://www.gnu.org/licenses/>
 */

#ifndef PIOS_STM32_H
#define PIOS_STM32_H

struct stm32_irq {
        void (*handler) (uint32_t);
        uint32_t flags;
        NVIC_InitTypeDef init;
};

struct stm32_exti {
        EXTI_InitTypeDef init;
};

struct stm32_dma_chan {
#if defined(STM32F2XX) || defined(STM32F4XX)
        DMA_Stream_TypeDef *channel;
#else
        DMA_Channel_TypeDef *channel;
#endif
        DMA_InitTypeDef init;
};

struct stm32_dma {
        uint32_t ahb_clk;                       /* ignored on STM32F2XX */
        struct stm32_irq irq;
        struct stm32_dma_chan rx;
        struct stm32_dma_chan tx;
};

struct stm32_gpio {
        GPIO_TypeDef *gpio;
        GPIO_InitTypeDef init;
        uint8_t pin_source;
};

#if defined(STM32F40_41xxx) || defined(STM32F446xx) /*  F4 */
#define PIOS_PERIPHERAL_APB1_COUNTER_CLOCK (PIOS_PERIPHERAL_APB1_CLOCK * 2)
#define PIOS_PERIPHERAL_APB2_COUNTER_CLOCK (PIOS_PERIPHERAL_APB2_CLOCK * 2)
#endif

#endif /* PIOS_STM32_H */