80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
/* Copyright 2020 Nick Brassel (tzarc)
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <ch.h>
|
|
#include <hal.h>
|
|
#include <stdbool.h>
|
|
|
|
#include "gpio.h"
|
|
|
|
#ifndef SPI_DRIVER
|
|
# define SPI_DRIVER SPID2
|
|
#endif
|
|
|
|
#ifndef SPI_SCK_PIN
|
|
# define SPI_SCK_PIN B13
|
|
#endif
|
|
|
|
#ifndef SPI_SCK_PAL_MODE
|
|
# define SPI_SCK_PAL_MODE 5
|
|
#endif
|
|
|
|
#ifndef SPI_MOSI_PIN
|
|
# define SPI_MOSI_PIN B15
|
|
#endif
|
|
|
|
#ifndef SPI_MOSI_PAL_MODE
|
|
# define SPI_MOSI_PAL_MODE 5
|
|
#endif
|
|
|
|
#ifndef SPI_MISO_PIN
|
|
# define SPI_MISO_PIN B14
|
|
#endif
|
|
|
|
#ifndef SPI_MISO_PAL_MODE
|
|
# define SPI_MISO_PAL_MODE 5
|
|
#endif
|
|
|
|
typedef int16_t spi_status_t;
|
|
|
|
#define SPI_STATUS_SUCCESS (0)
|
|
#define SPI_STATUS_ERROR (-1)
|
|
#define SPI_STATUS_TIMEOUT (-2)
|
|
|
|
#define SPI_TIMEOUT_IMMEDIATE (0)
|
|
#define SPI_TIMEOUT_INFINITE (0xFFFF)
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
void spi_init(void);
|
|
|
|
bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor);
|
|
|
|
spi_status_t spi_write(uint8_t data);
|
|
|
|
spi_status_t spi_read(void);
|
|
|
|
spi_status_t spi_transmit(const uint8_t *data, uint16_t length);
|
|
|
|
spi_status_t spi_receive(uint8_t *data, uint16_t length);
|
|
|
|
void spi_stop(void);
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|