kopia lustrzana https://github.com/micropython/micropython
118 wiersze
4.0 KiB
C
118 wiersze
4.0 KiB
C
/*
|
|
* This file is part of the MicroPython 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 <nrfx.h>
|
|
#include "pin.h"
|
|
#include "nrf_gpio.h"
|
|
#include "nrfx_config.h"
|
|
|
|
typedef enum
|
|
{
|
|
HAL_OK = 0x00,
|
|
HAL_ERROR = 0x01,
|
|
HAL_BUSY = 0x02,
|
|
HAL_TIMEOUT = 0x03
|
|
} HAL_StatusTypeDef;
|
|
|
|
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);
|
|
|
|
void mp_hal_delay_ms(mp_uint_t ms);
|
|
void mp_hal_delay_us(mp_uint_t us);
|
|
|
|
const char *nrfx_error_code_lookup(uint32_t err_code);
|
|
|
|
#define MICROPY_PY_PENDSV_ENTER uint32_t atomic_state = raise_irq_pri(IRQ_PRI_PENDSV)
|
|
#define MICROPY_PY_PENDSV_EXIT restore_irq_pri(atomic_state)
|
|
|
|
#if defined(NRF51)
|
|
|
|
static inline uint32_t raise_irq_pri(uint32_t pri) {
|
|
(void)pri;
|
|
return 0;
|
|
}
|
|
|
|
static inline void restore_irq_pri(uint32_t basepri) {
|
|
(void)basepri;
|
|
}
|
|
#define IRQ_PRI_PENDSV ((1 << __NVIC_PRIO_BITS) - 1)
|
|
|
|
#else
|
|
#define NVIC_PRIORITYGROUP_4 ((uint32_t)0x00000003)
|
|
#define IRQ_PRI_PENDSV NVIC_EncodePriority(NVIC_PRIORITYGROUP_4, 7, 0)
|
|
|
|
static inline uint32_t raise_irq_pri(uint32_t pri) {
|
|
uint32_t basepri = __get_BASEPRI();
|
|
// If non-zero, the processor does not process any exception with a
|
|
// priority value greater than or equal to BASEPRI.
|
|
// When writing to BASEPRI_MAX the write goes to BASEPRI only if either:
|
|
// - Rn is non-zero and the current BASEPRI value is 0
|
|
// - Rn is non-zero and less than the current BASEPRI value
|
|
pri <<= (8 - __NVIC_PRIO_BITS);
|
|
__ASM volatile ("msr basepri_max, %0" : : "r" (pri) : "memory");
|
|
return basepri;
|
|
}
|
|
|
|
// "basepri" should be the value returned from raise_irq_pri
|
|
static inline void restore_irq_pri(uint32_t basepri) {
|
|
__set_BASEPRI(basepri);
|
|
}
|
|
#endif
|
|
|
|
#define MP_HAL_PIN_FMT "%q"
|
|
#define mp_hal_pin_obj_t const pin_obj_t *
|
|
#define mp_hal_get_pin_obj(o) pin_find(o)
|
|
#define mp_hal_pin_name(p) ((p)->name)
|
|
#define mp_hal_pin_high(p) nrf_gpio_pin_set(p->pin)
|
|
#define mp_hal_pin_low(p) nrf_gpio_pin_clear(p->pin)
|
|
#define mp_hal_pin_read(p) (nrf_gpio_pin_dir_get(p->pin) == NRF_GPIO_PIN_DIR_OUTPUT) ? nrf_gpio_pin_out_read(p->pin) : nrf_gpio_pin_read(p->pin)
|
|
#define mp_hal_pin_write(p, v) ((v) ? mp_hal_pin_high(p) : mp_hal_pin_low(p))
|
|
#define mp_hal_pin_od_low(p) mp_hal_pin_low(p)
|
|
#define mp_hal_pin_od_high(p) mp_hal_pin_high(p)
|
|
#define mp_hal_pin_open_drain(p) nrf_gpio_cfg_input(p->pin, NRF_GPIO_PIN_NOPULL)
|
|
|
|
#if MICROPY_PY_TIME_TICKS
|
|
void rtc1_init_time_ticks();
|
|
#else
|
|
mp_uint_t mp_hal_ticks_ms(void);
|
|
#define mp_hal_ticks_us() (0)
|
|
#endif
|
|
|
|
// TODO: empty implementation for now. Used by machine_spi.c:69
|
|
#define mp_hal_delay_us_fast(p)
|
|
#define mp_hal_ticks_cpu() (0)
|
|
|
|
#endif
|