circuitpython/nrf5/mphalport.h

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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Glenn Ruben Bakke
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef __NRF52_HAL
#define __NRF52_HAL
#include "py/mpconfig.h"
#include NRF5_HAL_H
#include "pin.h"
typedef enum
{
HAL_OK = 0x00,
HAL_ERROR = 0x01,
HAL_BUSY = 0x02,
HAL_TIMEOUT = 0x03
} HAL_StatusTypeDef;
#ifdef NRF51
#define GPIO_BASE ((NRF_GPIO_Type *)NRF_GPIO_BASE)
#else
#define GPIO_BASE ((NRF_GPIO_Type *)NRF_P0_BASE)
#endif
/**
* @brief GPIO Init structure definition
*/
typedef struct
{
uint32_t Pin; /*!< Specifies the GPIO pins to be configured.
This parameter can be any value of @ref GPIO_pins_define */
uint32_t Mode; /*!< Specifies the operating mode for the selected pins.
This parameter can be a value of @ref GPIO_mode_define */
uint32_t Pull; /*!< Specifies the Pull-up or Pull-Down activation for the selected pins.
This parameter can be a value of @ref GPIO_pull_define */
uint32_t Speed; /*!< Specifies the speed for the selected pins.
This parameter can be a value of @ref GPIO_speed_define */
uint32_t Alternate; /*!< Peripheral to be connected to the selected pins.
This parameter can be a value of @ref GPIO_Alternat_function_selection */
} GPIO_InitTypeDef;
typedef enum {
HAL_GPIO_PULL_DISABLED = (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos),
HAL_GPIO_PULL_DOWN = (GPIO_PIN_CNF_PULL_Pulldown << GPIO_PIN_CNF_PULL_Pos),
HAL_GPIO_PULL_UP = (GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos)
} hal_gpio_pull_t;
typedef enum {
HAL_GPIO_MODE_OUTPUT = (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos),
HAL_GPIO_MODE_INPUT = (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos),
} hal_gpio_mode_t;
static inline void hal_gpio_cfg_pin(uint32_t pin_number, hal_gpio_mode_t mode, hal_gpio_pull_t pull) {
GPIO_BASE->PIN_CNF[pin_number] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
| (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
| pull
| (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos)
| mode;
}
static inline void hal_gpio_out_set(uint32_t pin_mask) {
GPIO_BASE->OUTSET = pin_mask;
}
static inline void hal_gpio_pin_set(uint32_t pin) {
GPIO_BASE->OUTSET = (1 << pin);
}
static inline void hal_gpio_pin_clear(uint32_t pin) {
GPIO_BASE->OUTCLR = (1 << pin);
}
static inline void hal_gpio_pin_toggle(uint32_t pin) {
uint32_t pin_mask = (1 << pin);
if (GPIO_BASE->OUT ^ pin_mask) {
GPIO_BASE->OUTSET = pin_mask;
} else {
GPIO_BASE->OUTCLR = pin_mask;
}
}
static inline uint32_t hal_tick_fake(void) {
return 0;
}
#define mp_hal_ticks_ms hal_tick_fake // TODO: implement. Right now, return 0 always
extern const unsigned char mp_hal_status_to_errno_table[4];
NORETURN void mp_hal_raise(HAL_StatusTypeDef status);
void mp_hal_set_interrupt_char(int c); // -1 to disable
int mp_hal_stdin_rx_chr(void);
void mp_hal_stdout_tx_str(const char *str);
#define mp_hal_pin_obj_t const pin_obj_t*
#define mp_hal_pin_high(p) (((NRF_GPIO_Type *)((p)->gpio))->OUTSET = (p)->pin_mask)
#define mp_hal_pin_low(p) (((NRF_GPIO_Type *)((p)->gpio))->OUTCLR = (p)->pin_mask)
#define mp_hal_pin_read(p) (((NRF_GPIO_Type *)((p)->gpio))->IN >> ((p)->pin) & 1)
#define mp_hal_pin_write(p, v) do { if (v) { mp_hal_pin_high(p); } else { mp_hal_pin_low(p); } } while (0)
// TODO: empty implementation for now. Used by machine_spi.c:69
#define mp_hal_delay_us_fast(p)
#define mp_hal_ticks_us() (0)
#define mp_hal_ticks_cpu() (0)
#endif