170bdd104f
Large change that removes the duplicated MIT notice withe a spdx tag Signed-off-by: Thomas Ingleby <thomas.ingleby@intel.com>
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
/*
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* Author: Norbert Wesp <nwesp@phytec.de>
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* Author: Stefan Müller-Klieser <S.Mueller-Klieser@phytec.de>
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* Copyright (c) 2016 Phytec Messtechnik GmbH.
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*
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* Based on src/arm/beaglebone.c
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*
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* SPDX-License-Identifier: MIT
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*/
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <mraa/types.h>
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#include "common.h"
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#define SYSFS_CLASS_PWM "/sys/class/pwm/"
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#define SYSFS_CLASS_MMC "/sys/class/mmc_host/"
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#define MMAP_PATH "/dev/mem"
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#define MAX_SIZE 64
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#define AM335X_GPIO0_BASE 0x44e07000
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#define AM335X_GPIO1_BASE 0x4804c000
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#define AM335X_GPIO2_BASE 0x481AC000
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#define AM335X_GPIO3_BASE 0x481AE000
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#define AM335X_GPIO_SIZE (4 * 1024)
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#define AM335X_IN 0x138
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#define AM335X_CLR 0x190
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#define AM335X_SET 0x194
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/**
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* Writes 'value' to gpio_context 'dev'
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*
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* @return mraa_result_t indicating success of actions.
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*/
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mraa_result_t mraa_am335x_mmap_write(mraa_gpio_context dev, int value);
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/**
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* Unsetup register of mmap_gpio[]
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*
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* @return mraa_result_t indicating success of actions.
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*/
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mraa_result_t mraa_am335x_mmap_unsetup();
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/**
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* Read from gpio_context 'dev'
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*
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* @return int result indicating success of actions.
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*/
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int mraa_am335x_mmap_read(mraa_gpio_context dev);
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/**
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* Disables gpio_context 'dev' in case of 'en' or mmap'ing gpio_context 'dev'
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*
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* @return mraa_result_t indicating success of actions.
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*/
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mraa_result_t mraa_am335x_mmap_setup(mraa_gpio_context dev, mraa_boolean_t en);
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#ifdef __cplusplus
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}
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#endif
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