/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef H_NRF52_HAL_
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#define H_NRF52_HAL_
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#include "cmsis.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Helper functions to enable/disable interrupts. */
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#define __HAL_DISABLE_INTERRUPTS(x) \
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do { \
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x = __get_PRIMASK(); \
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__disable_irq(); \
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} while(0);
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#define __HAL_ENABLE_INTERRUPTS(x) \
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do { \
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if (!x) { \
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__enable_irq(); \
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} \
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} while(0);
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struct nrf52_uart_cfg {
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int8_t suc_pin_tx; /* pins for IO */
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int8_t suc_pin_rx;
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int8_t suc_pin_rts;
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int8_t suc_pin_cts;
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};
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const struct nrf52_uart_cfg *bsp_uart_config(void);
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struct nrf52_hal_i2c_cfg {
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int scl_pin;
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int sda_pin;
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uint32_t i2c_frequency;
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};
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struct hal_flash;
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extern const struct hal_flash nrf52k_flash_dev;
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extern const struct hal_flash nrf52k_qspi_dev;
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/* SPI configuration (used for both master and slave) */
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struct nrf52_hal_spi_cfg {
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uint8_t sck_pin;
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uint8_t mosi_pin;
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uint8_t miso_pin;
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uint8_t ss_pin;
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};
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/*
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* GPIO pin mapping
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*
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* The logical GPIO pin numbers (0 to N) are mapped to ports in the following
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* manner:
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* pins 0 - 31: Port 0
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* pins 32 - 48: Port 1.
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*
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* The nrf52832 has only one port with 32 pins. The nrf52840 has 48 pins and
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* uses two ports.
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*
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* NOTE: in order to save code space, there is no checking done to see if the
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* user specifies a pin that is not used by the processor. If an invalid pin
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* number is used unexpected and/or erroneous behavior will result.
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*/
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#if defined(NRF52832_XXAA) || defined(NRF52810_XXAA) || defined(NRF52811_XXAA)
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#define HAL_GPIO_INDEX(pin) (pin)
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#define HAL_GPIO_PORT(pin) (NRF_P0)
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#define HAL_GPIO_MASK(pin) (1 << pin)
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#define HAL_GPIOTE_PIN_MASK GPIOTE_CONFIG_PSEL_Msk
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#endif
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#ifdef NRF52840_XXAA
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#define HAL_GPIO_INDEX(pin) ((pin) & 0x1F)
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#define HAL_GPIO_PORT(pin) ((pin) > 31 ? NRF_P1 : NRF_P0)
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#define HAL_GPIO_MASK(pin) (1 << HAL_GPIO_INDEX(pin))
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#define HAL_GPIOTE_PIN_MASK (0x3FUL << GPIOTE_CONFIG_PSEL_Pos)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* H_NRF52_HAL_ */
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