def719e7a7
There were several different spellings of MicroPython present in comments,
when there should be only one.
Aligning to upstream commit 55f33240f3.
128 lines
4.3 KiB
C
128 lines
4.3 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2016 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 HAL_SPI_H__
|
|
#define HAL_SPI_H__
|
|
|
|
#include <stdbool.h>
|
|
#include "nrf.h"
|
|
|
|
#if NRF51
|
|
#define SPI_BASE_POINTERS (const uint32_t[]){NRF_SPI0_BASE, NRF_SPI1_BASE}
|
|
#define SPI_IRQ_VALUES (const uint32_t[]){SPI0_TWI0_IRQn, SPI1_TWI1_IRQn}
|
|
#endif
|
|
|
|
#if NRF52
|
|
#ifdef NRF52832_XXAA
|
|
#define SPI_BASE_POINTERS (const uint32_t[]){NRF_SPI0_BASE, \
|
|
NRF_SPI1_BASE, \
|
|
NRF_SPI2_BASE}
|
|
#define SPI_IRQ_VALUES (const uint32_t[]){SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQn, \
|
|
SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQn, \
|
|
SPIM2_SPIS2_SPI2_IRQn}
|
|
#endif
|
|
|
|
#ifdef NRF52840_XXAA
|
|
#define SPI_BASE_POINTERS (const uint32_t[]){NRF_SPI0_BASE, \
|
|
NRF_SPI1_BASE, \
|
|
NRF_SPI2_BASE, \
|
|
NRF_SPIM3_BASE}
|
|
#define SPI_IRQ_VALUES (const uint32_t[]){SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQn, \
|
|
SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQn, \
|
|
SPIM2_SPIS2_SPI2_IRQn, \
|
|
SPIM3_IRQn}
|
|
#endif
|
|
#endif
|
|
|
|
#define SPI_BASE(x) ((NRF_SPI_Type *)SPI_BASE_POINTERS[x])
|
|
#define SPI_IRQ_NUM(x) (SPI_IRQ_VALUES[x])
|
|
|
|
/**
|
|
* @brief SPI clock frequency type definition
|
|
*/
|
|
typedef enum {
|
|
HAL_SPI_FREQ_125_Kbps = 0,
|
|
HAL_SPI_FREQ_250_Kbps,
|
|
HAL_SPI_FREQ_500_Kbps,
|
|
HAL_SPI_FREQ_1_Mbps,
|
|
HAL_SPI_FREQ_2_Mbps,
|
|
HAL_SPI_FREQ_4_Mbps,
|
|
HAL_SPI_FREQ_8_Mbps,
|
|
#if NRF52840_XXAA
|
|
HAL_SPI_FREQ_16_Mbps,
|
|
HAL_SPI_FREQ_32_Mbps
|
|
#endif
|
|
} hal_spi_clk_freq_t;
|
|
|
|
/**
|
|
* @brief SPI mode type definition
|
|
*/
|
|
typedef enum {
|
|
HAL_SPI_MODE_CPOL0_CPHA0 = 0, // CPOL = 0, CPHA = 0 (data on leading edge)
|
|
HAL_SPI_MODE_CPOL0_CPHA1, // CPOL = 0, CPHA = 1 (data on trailing edge)
|
|
HAL_SPI_MODE_CPOL1_CPHA0, // CPOL = 1, CPHA = 0 (data on leading edge)
|
|
HAL_SPI_MODE_CPOL1_CPHA1 // CPOL = 1, CPHA = 1 (data on trailing edge)
|
|
} hal_spi_mode_t;
|
|
|
|
/**
|
|
* @brief SPI firstbit mode definition
|
|
*/
|
|
typedef enum {
|
|
HAL_SPI_MSB_FIRST = 0,
|
|
HAL_SPI_LSB_FIRST
|
|
} hal_spi_firstbit_t;
|
|
|
|
/**
|
|
* @brief SPI Configuration Structure definition
|
|
*/
|
|
typedef struct {
|
|
const pin_obj_t * mosi_pin;
|
|
const pin_obj_t * miso_pin;
|
|
const pin_obj_t * clk_pin;
|
|
hal_spi_firstbit_t firstbit;
|
|
hal_spi_mode_t mode;
|
|
uint32_t irq_priority;
|
|
hal_spi_clk_freq_t freq;
|
|
} hal_spi_init_t;
|
|
|
|
/**
|
|
* @brief SPI handle Structure definition
|
|
*/
|
|
typedef struct __SPI_HandleTypeDef
|
|
{
|
|
NRF_SPI_Type *instance; /* SPI registers base address */
|
|
hal_spi_init_t init; /* SPI initialization parameters */
|
|
} SPI_HandleTypeDef;
|
|
|
|
void hal_spi_master_init(NRF_SPI_Type * p_instance, hal_spi_init_t const * p_spi_init);
|
|
|
|
void hal_spi_master_tx_rx(NRF_SPI_Type * p_instance,
|
|
uint16_t transfer_size,
|
|
const uint8_t * tx_data,
|
|
uint8_t * rx_data);
|
|
|
|
#endif // HAL_SPI_H__
|