42 lines
941 B
C
42 lines
941 B
C
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#ifndef _PLCNT_CNT_H_
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#define _PLCNT_CNT_H_
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//计数参考时钟选择, 频率越高, 精度越高
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enum touch_key_clk {
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TOUCH_KEY_OSC_CLK = 0,
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TOUCH_KEY_MUX_IN_CLK, //外部输入, ,一般不用, 保留
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TOUCH_KEY_PLL_192M_CLK,
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TOUCH_KEY_PLL_240M_CLK,
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};
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struct touch_key_port {
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u8 port; //触摸按键IO
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u8 key_value; //按键返回值
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};
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struct touch_key_platform_data {
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u8 num; //触摸按键个数;
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u8 clock; //触摸按键选择时钟;
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u8 change_gain; //变化放大倍数
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s16 press_cfg; //按下判决门限
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s16 release_cfg0; //释放判决门限0
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s16 release_cfg1; //释放判决门限1
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const struct touch_key_port *port_list; //触摸按键列表
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};
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/* =========== pclcnt API ============= */
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//时钟初始化
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void plcnt_clk_init(u8 clk);
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//触摸键 IO 初始化
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void plcnt_io_init(u8 port);
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//获取plcnt计数值
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u32 plcnt_delta_cnt_get(u8 port);
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#endif
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