HackRF-Treasure-Chest/Software/portapack-mayhem/hackrf/firmware/common/gpio_lpc.h

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2022-09-22 18:26:57 +02:00
/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of HackRF.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GPIO_LPC_H__
#define __GPIO_LPC_H__
#include <stdint.h>
#include "gpio.h"
/* NOTE: libopencm3 constants and functions not used here due to naming
* conflicts. I'd recommend changes to libopencm3 design to separate
* register #defines and API declarations into separate header files.
*/
typedef struct gpio_port_t {
volatile uint32_t dir; /* +0x000 */
uint32_t _reserved0[31];
volatile uint32_t mask; /* +0x080 */
uint32_t _reserved1[31];
volatile uint32_t pin; /* +0x100 */
uint32_t _reserved2[31];
volatile uint32_t mpin; /* +0x180 */
uint32_t _reserved3[31];
volatile uint32_t set; /* +0x200 */
uint32_t _reserved4[31];
volatile uint32_t clr; /* +0x280 */
uint32_t _reserved5[31];
volatile uint32_t not; /* +0x300 */
} gpio_port_t;
struct gpio_t {
const uint32_t mask;
gpio_port_t* const port;
volatile uint32_t* const gpio_w;
};
#define GPIO_LPC_BASE (0x400f4000)
#define GPIO_LPC_B_OFFSET (0x0)
#define GPIO_LPC_W_OFFSET (0x1000)
#define GPIO_LPC_PORT_OFFSET (0x2000)
#define GPIO_LPC_PORT(_n) ((gpio_port_t*)((GPIO_LPC_BASE + GPIO_LPC_PORT_OFFSET) + (_n) * 4))
#define GPIO_LPC_W(_port_num, _pin_num) (volatile uint32_t*)((GPIO_LPC_BASE + GPIO_LPC_W_OFFSET) + ((_port_num) * 0x80) + ((_pin_num) * 4))
#define GPIO(_port_num, _pin_num) { \
.mask = (1UL << (_pin_num)), \
.port = GPIO_LPC_PORT(_port_num), \
.gpio_w = GPIO_LPC_W(_port_num, _pin_num), \
}
#endif/*__GPIO_LPC_H__*/