/** @file gpio_regs.h
 * Module defining the GPIO registers.
 *
 * Mainly made to be used by the gpio module. It is recommanded to go through
 * the functions provided by that module instead of directly using the registers
 * defined here.
 */

#ifndef _GPIO_REGS_H_
#define _GPIO_REGS_H_

//--includes--------------------------------------------------------------------

#include "stdint.h"


//--type definitions------------------------------------------------------------

#define GPIO_BASE_ADDRESS 0x40010800

union GPIO_CRL {
	struct __attribute__((packed)) {
		uint32_t MODE0:2;
		uint32_t CNF0:2;
		uint32_t MODE1:2;
		uint32_t CNF1:2;
		uint32_t MODE2:2;
		uint32_t CNF2:2;
		uint32_t MODE3:2;
		uint32_t CNF3:2;
		uint32_t MODE4:2;
		uint32_t CNF4:2;
		uint32_t MODE5:2;
		uint32_t CNF5:2;
		uint32_t MODE6:2;
		uint32_t CNF6:2;
		uint32_t MODE7:2;
		uint32_t CNF7:2;
	};
	uint32_t word;
};

union GPIO_CRH {
	struct __attribute__((packed)) {
		uint32_t MODE8:2;
		uint32_t CNF8:2;
		uint32_t MODE9:2;
		uint32_t CNF9:2;
		uint32_t MODE10:2;
		uint32_t CNF10:2;
		uint32_t MODE11:2;
		uint32_t CNF11:2;
		uint32_t MODE12:2;
		uint32_t CNF12:2;
		uint32_t MODE13:2;
		uint32_t CNF13:2;
		uint32_t MODE14:2;
		uint32_t CNF14:2;
		uint32_t MODE15:2;
		uint32_t CNF15:2;
	};
	uint32_t word;
};

union GPIO_IDR {
	struct __attribute__((packed)) {
		uint32_t IDR0:1;
		uint32_t IDR1:1;
		uint32_t IDR2:1;
		uint32_t IDR3:1;
		uint32_t IDR4:1;
		uint32_t IDR5:1;
		uint32_t IDR6:1;
		uint32_t IDR7:1;
		uint32_t IDR8:1;
		uint32_t IDR9:1;
		uint32_t IDR10:1;
		uint32_t IDR11:1;
		uint32_t IDR12:1;
		uint32_t IDR13:1;
		uint32_t IDR14:1;
		uint32_t IDR15:1;
		uint32_t reserved1:16;
	};
	uint32_t word;
};

union GPIO_ODR {
	struct __attribute__((packed)) {
		uint32_t ODR0:1;
		uint32_t ODR1:1;
		uint32_t ODR2:1;
		uint32_t ODR3:1;
		uint32_t ODR4:1;
		uint32_t ODR5:1;
		uint32_t ODR6:1;
		uint32_t ODR7:1;
		uint32_t ODR8:1;
		uint32_t ODR9:1;
		uint32_t ODR10:1;
		uint32_t ODR11:1;
		uint32_t ODR12:1;
		uint32_t ODR13:1;
		uint32_t ODR14:1;
		uint32_t ODR15:1;
		uint32_t reserved1:16;
	};
	uint32_t word;
};

union GPIO_BSRR {
	struct __attribute__((packed)) {
		uint32_t BS0:1;
		uint32_t BS1:1;
		uint32_t BS2:1;
		uint32_t BS3:1;
		uint32_t BS4:1;
		uint32_t BS5:1;
		uint32_t BS6:1;
		uint32_t BS7:1;
		uint32_t BS8:1;
		uint32_t BS9:1;
		uint32_t BS10:1;
		uint32_t BS11:1;
		uint32_t BS12:1;
		uint32_t BS13:1;
		uint32_t BS14:1;
		uint32_t BS15:1;
		uint32_t BR0:1;
		uint32_t BR1:1;
		uint32_t BR2:1;
		uint32_t BR3:1;
		uint32_t BR4:1;
		uint32_t BR5:1;
		uint32_t BR6:1;
		uint32_t BR7:1;
		uint32_t BR8:1;
		uint32_t BR9:1;
		uint32_t BR10:1;
		uint32_t BR11:1;
		uint32_t BR12:1;
		uint32_t BR13:1;
		uint32_t BR14:1;
		uint32_t BR15:1;
	};
	uint32_t word;
};

union GPIO_BRR {
	struct __attribute__((packed)) {
		uint32_t BR0:1;
		uint32_t BR1:1;
		uint32_t BR2:1;
		uint32_t BR3:1;
		uint32_t BR4:1;
		uint32_t BR5:1;
		uint32_t BR6:1;
		uint32_t BR7:1;
		uint32_t BR8:1;
		uint32_t BR9:1;
		uint32_t BR10:1;
		uint32_t BR11:1;
		uint32_t BR12:1;
		uint32_t BR13:1;
		uint32_t BR14:1;
		uint32_t BR15:1;
		uint32_t reserved1:16;
	};
	uint32_t word;
};

union GPIO_LCKK {
	struct __attribute__((packed)) {
		uint32_t LCK0:1;
		uint32_t LCK1:1;
		uint32_t LCK2:1;
		uint32_t LCK3:1;
		uint32_t LCK4:1;
		uint32_t LCK5:1;
		uint32_t LCK6:1;
		uint32_t LCK7:1;
		uint32_t LCK8:1;
		uint32_t LCK9:1;
		uint32_t LCK10:1;
		uint32_t LCK11:1;
		uint32_t LCK12:1;
		uint32_t LCK13:1;
		uint32_t LCK14:1;
		uint32_t LCK15:1;
		uint32_t LCKK:1;
		uint32_t reserved1:15;
	};
	uint32_t word;
};

struct __attribute__((packed)) GPIO_PORT {
	union GPIO_CRL CRL;
	union GPIO_CRH CRH;
	union GPIO_IDR IDR;
	union GPIO_ODR ODR;
	union GPIO_BSRR BSRR;
	union GPIO_BRR BRR;
	union GPIO_LCKK LCKK;
	uint32_t reserved1[249];
};

struct __attribute__((packed)) GPIO {
	struct GPIO_PORT PORTS[7];
};


//--functions-------------------------------------------------------------------

#endif //_GPIO_REGS_H_