55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
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/*
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2017-09-06 勤为本 first version
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*/
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// 引脚功能(普通gpio，pwm，复用等)相关接口
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#ifndef __LOONGSON_PIN_H
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#define __LOONGSON_PIN_H
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// 引脚用途
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typedef enum
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{
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PIN_PURPOSE_GPIO = 0, // 引脚用作普通gpio
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PIN_PURPOSE_OTHER, // 引脚用作其它功能(非gpio)
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}pin_purpose_t;
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// 引脚复用
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typedef enum
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{
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PIN_REMAP_FIRST = 0, // 第一复用
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PIN_REMAP_SECOND, // 第二复用
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PIN_REMAP_THIRD, // 第三复用
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PIN_REMAP_FOURTH, // 第四复用
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PIN_REMAP_FIFTH, // 第五复用
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PIN_REMAP_DEFAULT, //缺省复用
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}pin_remap_t;
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/*
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* 把指定pin设置为指定用途(普通gpio，非gpio)
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* @gpio gpio引脚编号
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* @purpose 用途
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*/
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void pin_set_purpose(unsigned int gpio, pin_purpose_t purpose);
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/*
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* 设置指定pin为第n复用
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* @gpio gpio编号
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* @remap 第n复用
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*/
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void pin_set_remap(unsigned int gpio, pin_remap_t remap);
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#endif
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