80 lines
1.4 KiB
C
80 lines
1.4 KiB
C
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#ifndef __OPENLOONGSON_GPIO_H
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#define __OPENLOONGSON_GPIO_H
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// <20><>о1c<31><63>gpio<69>ǰ<EFBFBD><C7B0><EFBFBD>0,1,2,3,4...<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD>ŵģ<C5B5>
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// <20><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD>ÿ32<33><32>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>32<33><32>gpio<69><6F><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>"port"<22><>ÿ<EFBFBD><C3BF>gpio<69><6F>ÿ<EFBFBD><C3BF><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"pin"
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// port = gpio / 32
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// pin = gpio % 32
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// <20><><EFBFBD><EFBFBD>GPIO50<35><30>port=1,pin=18
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#define GPIO_GET_PORT(gpio) ((gpio) / 32)
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#define GPIO_GET_PIN(gpio) ((gpio) % 32)
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// gpio<69>Ĺ<EFBFBD><C4B9><EFBFBD>ģʽ--<2D><><EFBFBD>롢<EFBFBD><EBA1A2><EFBFBD><EFBFBD>
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typedef enum{
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gpio_mode_output = 0, // <20><><EFBFBD><EFBFBD>
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gpio_mode_input = 1 // <20><><EFBFBD><EFBFBD>
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}gpio_mode_t;
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// gpio<69>ߵ͵<DFB5>ƽֵ
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typedef enum{
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gpio_level_low = 0, // <20>͵<EFBFBD>ƽ
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gpio_level_high = 1 // <20>ߵ<EFBFBD>ƽ
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}gpio_level_t;
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/*
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* <EFBFBD><EFBFBD>ȡָ<EFBFBD><EFBFBD>gpio<EFBFBD><EFBFBD>CFG<EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD>
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* @gpio gpio<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @ret CFG<EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD>
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*/
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volatile unsigned int *gpio_get_cfg_reg(unsigned int gpio);
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/*
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* gpio<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>
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* @gpio gpio<EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD>ȡֵ<EFBFBD><EFBFBD>Χ[0, 127]
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* @mode gpio<EFBFBD>Ĺ<EFBFBD><EFBFBD><EFBFBD>ģʽ(<EFBFBD><EFBFBD><EFBFBD>롢<EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
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*
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* <EFBFBD><EFBFBD>: <EFBFBD><EFBFBD>gpio50<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* gpio_init(50, gpio_mode_output);
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*/
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void gpio_init(unsigned int gpio, gpio_mode_t mode);
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/*
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* <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>gpio<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵ<EFBFBD>ƽ<EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ƽ
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* @gpio gpio<EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD>ȡֵ<EFBFBD><EFBFBD>Χ[0, 127]
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* @level <EFBFBD><EFBFBD>ƽֵ
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*
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* <EFBFBD><EFBFBD>: <EFBFBD><EFBFBD>gpio50<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ƽ
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* gpio_set(50, gpio_level_low);
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*/
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void gpio_set(unsigned int gpio, gpio_level_t level);
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/*
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* <EFBFBD><EFBFBD>ȡָ<EFBFBD><EFBFBD>gpio<EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD>ֵ
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* @gpio gpio<EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD>ȡֵ<EFBFBD><EFBFBD>Χ[0,127]
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*
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* <EFBFBD><EFBFBD>: <EFBFBD><EFBFBD>ȡgpio50<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD>ֵ
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* gpio_level_t level;
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* level = gpio_get(50);
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*/
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unsigned int gpio_get(unsigned int gpio);
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#endif
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