mirror of
https://github.com/pascallanger/DIY-Multiprotocol-TX-Module.git
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113 lines
3.7 KiB
C
113 lines
3.7 KiB
C
/******************************************************************************
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* The MIT License
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*
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* Copyright (c) 2012 LeafLabs, LLC.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*****************************************************************************/
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/**
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* @file libmaple/include/libmaple/dma_common.h
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* @author Marti Bolivar <mbolivar@leaflabs.com>
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* @brief Common DMA sub-header for <series/dma.h> and <libmaple/dma.h>.
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*
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* CONTENTS UNSTABLE. The existence of this file is an implementation
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* detail. Never include it directly. If you need something from
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* here, include <libmaple/dma.h> instead.
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*/
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/*
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* There's a fair amount of common DMA functionality needed by each
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* <series/dma.h> and <libmaple/dma.h>. This header exists in order
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* to provide it to both, avoiding some hacks and circular
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* dependencies.
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*/
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#ifndef _LIBMAPLE_DMA_COMMON_H_
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#define _LIBMAPLE_DMA_COMMON_H_
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#ifdef __cplusplus
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extern "C"{
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#endif
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#include <libmaple/libmaple_types.h>
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#include <libmaple/nvic.h>
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#include <libmaple/rcc.h>
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/*
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* Devices
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*/
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struct dma_reg_map;
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/* Encapsulates state related to user interrupt handlers. You
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* shouldn't touch these directly; use dma_attach_interrupt() and
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* dma_detach_interupt() instead. */
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typedef struct dma_handler_config {
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void (*handler)(void); /* User handler */
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nvic_irq_num irq_line; /* IRQ line for interrupt */
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} dma_handler_config;
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/** DMA device type */
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typedef struct dma_dev {
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struct dma_reg_map *regs; /**< Register map */
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rcc_clk_id clk_id; /**< Clock ID */
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struct dma_handler_config handlers[]; /**< For internal use */
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} dma_dev;
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/**
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* @brief DMA channels
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*
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* Notes:
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* - This is also the dma_tube type for STM32F1.
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* - Channel 0 is not available on all STM32 series.
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*
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* @see dma_tube
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*/
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typedef enum dma_channel {
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DMA_CH0 = 0, /**< Channel 0 */
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DMA_CH1 = 1, /**< Channel 1 */
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DMA_CH2 = 2, /**< Channel 2 */
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DMA_CH3 = 3, /**< Channel 3 */
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DMA_CH4 = 4, /**< Channel 4 */
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DMA_CH5 = 5, /**< Channel 5 */
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DMA_CH6 = 6, /**< Channel 6 */
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DMA_CH7 = 7, /**< Channel 7 */
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} dma_channel;
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/**
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* @brief Source and destination transfer sizes.
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* Use these when initializing a struct dma_tube_config.
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* @see struct dma_tube_config
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* @see dma_tube_cfg
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*/
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typedef enum dma_xfer_size {
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DMA_SIZE_8BITS = 0, /**< 8-bit transfers */
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DMA_SIZE_16BITS = 1, /**< 16-bit transfers */
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DMA_SIZE_32BITS = 2, /**< 32-bit transfers */
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} dma_xfer_size;
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif
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