117 lines
3.7 KiB
C
117 lines
3.7 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Glenn Ruben Bakke
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hal_gpio.h"
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#include "mphalport.h"
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#include "hal_irq.h"
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#define GPIOTE_IRQ_NUM GPIOTE_IRQn
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#define GPIOTE_BASE ((NRF_GPIOTE_Type *)NRF_GPIOTE_BASE)
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#define HAL_GPIOTE_Type NRF_GPIOTE_Type
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static hal_gpio_event_callback_t m_callback;
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void hal_gpio_register_callback(hal_gpio_event_callback_t cb) {
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m_callback = cb;
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#if 0
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hal_gpio_event_config_t config;
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config.channel = HAL_GPIO_EVENT_CHANNEL_0;
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config.event = HAL_GPIO_POLARITY_EVENT_HIGH_TO_LOW;
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config.init_level = 1;
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config.pin = 13;
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config.port = 0;
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// start LFCLK if not already started
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if (NRF_CLOCK->LFCLKSTAT == 0) {
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NRF_CLOCK->TASKS_LFCLKSTART = 1;
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while (NRF_CLOCK->EVENTS_LFCLKSTARTED == 0);
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NRF_CLOCK->EVENTS_LFCLKSTARTED = 0;
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}
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hal_irq_enable(GPIOTE_IRQ_NUM);
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hal_irq_priority(GPIOTE_IRQ_NUM, 3);
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hal_gpio_event_config(&config);
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#endif
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}
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void hal_gpio_event_config(hal_gpio_event_config_t const * p_config) {
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#if 0
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hal_gpio_cfg_pin(p_config->port, p_config->pin, HAL_GPIO_MODE_INPUT, HAL_GPIO_PULL_UP);
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uint8_t channel = (uint8_t)p_config->channel;
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GPIOTE_BASE->CONFIG[channel] = \
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GPIOTE_CONFIG_MODE_Event << GPIOTE_CONFIG_MODE_Pos \
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| p_config->pin << GPIOTE_CONFIG_PSEL_Pos \
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| p_config->event \
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| p_config->init_level << GPIOTE_CONFIG_OUTINIT_Pos;
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GPIOTE_BASE->INTENSET = 1 << channel;
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GPIOTE_BASE->EVENTS_IN[channel] = 0;
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#endif
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}
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#if 0
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void GPIOTE_IRQHandler(void) {
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if (GPIOTE_BASE->EVENTS_IN[0]) {
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GPIOTE_BASE->EVENTS_IN[0] = 0;
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m_callback(HAL_GPIO_EVENT_CHANNEL_0);
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}
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if (GPIOTE_BASE->EVENTS_IN[1]) {
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GPIOTE_BASE->EVENTS_IN[1] = 0;
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m_callback(HAL_GPIO_EVENT_CHANNEL_1);
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}
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if (GPIOTE_BASE->EVENTS_IN[2]) {
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GPIOTE_BASE->EVENTS_IN[2] = 0;
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m_callback(HAL_GPIO_EVENT_CHANNEL_2);
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}
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if (GPIOTE_BASE->EVENTS_IN[3]) {
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GPIOTE_BASE->EVENTS_IN[3] = 0;
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m_callback(HAL_GPIO_EVENT_CHANNEL_3);
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}
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if (GPIOTE_BASE->EVENTS_IN[4]) {
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GPIOTE_BASE->EVENTS_IN[4] = 0;
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m_callback(HAL_GPIO_EVENT_CHANNEL_4);
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}
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if (GPIOTE_BASE->EVENTS_IN[5]) {
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GPIOTE_BASE->EVENTS_IN[5] = 0;
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m_callback(HAL_GPIO_EVENT_CHANNEL_5);
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}
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if (GPIOTE_BASE->EVENTS_IN[6]) {
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GPIOTE_BASE->EVENTS_IN[6] = 0;
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m_callback(HAL_GPIO_EVENT_CHANNEL_6);
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}
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if (GPIOTE_BASE->EVENTS_IN[7]) {
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GPIOTE_BASE->EVENTS_IN[7] = 0;
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m_callback(HAL_GPIO_EVENT_CHANNEL_7);
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}
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}
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#endif // if 0
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