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include_lib/system/device/iokey.h

@@ -0,0 +1,53 @@
+#ifndef DEVICE_IOKEY_H
+#define DEVICE_IOKEY_H
+
+#include "typedef.h"
+#include "device/device.h"
+
+
+// enum key_connect_way {
+// ONE_PORT_TO_LOW, 		//按键一个端口接低电平, 另一个端口接IO
+// ONE_PORT_TO_HIGH,		//按键一个端口接高电平, 另一个端口接IO
+// DOUBLE_PORT_TO_IO,		//按键两个端口接IO
+// };
+
+
+#define ONE_PORT_TO_LOW 		0 		//按键一个端口接低电平, 另一个端口接IO
+#define ONE_PORT_TO_HIGH		1 		//按键一个端口接高电平, 另一个端口接IO
+#define DOUBLE_PORT_TO_IO		2		//按键两个端口接IO
+#define CUST_DOUBLE_PORT_TO_IO	3
+
+
+struct one_io_key {
+    u8 port;
+};
+
+struct two_io_key {
+    u8 in_port;
+    u8 out_port;
+};
+
+union key_type {
+    struct one_io_key one_io;
+    struct two_io_key two_io;
+};
+
+struct iokey_port {
+    union key_type key_type;
+    u8 connect_way;
+    u8 key_value;
+};
+
+struct iokey_platform_data {
+    u8 enable;
+    u8 num;
+    const struct iokey_port *port;
+};
+
+//IOKEY API:
+extern int iokey_init(const struct iokey_platform_data *iokey_data);
+extern u8 io_get_key_value(void);
+
+
+#endif
+