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modSPI.h
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modSPI.h
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/*
* Copyright (c) 2016-2019 Moddable Tech, Inc.
*
* This file is part of the Moddable SDK Runtime.
*
* The Moddable SDK Runtime is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Moddable SDK Runtime 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the Moddable SDK Runtime. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __MODSPI_H__
#define __MODSPI_H__
#include "driver/spi_master.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "stdint.h"
typedef struct modSPIConfigurationRecord modSPIConfigurationRecord;
typedef struct modSPIConfigurationRecord *modSPIConfiguration;
typedef void (*modSPIChipSelectCallback)(uint8_t active, modSPIConfiguration config);
struct modSPIConfigurationRecord {
spi_device_handle_t spi_dev;
int8_t cs_pin;
uint8_t spiPort;
uint8_t sync;
uint8_t miso_delay;
uint32_t hz;
modSPIChipSelectCallback doChipSelect;
uint8_t mode;
uint8_t clock_pin;
uint8_t mosi_pin;
uint8_t miso_pin;
};
typedef struct modSPIConfigurationRecord modSPIConfigurationRecord;
typedef struct modSPIConfigurationRecord *modSPIConfiguration;
#define modSPIConfig(config, HZ, SPI_PORT, CS_PORT, CS_PIN, DOCHIPSELECT) \
config.hz = HZ; \
config.cs_pin = CS_PIN; \
config.doChipSelect = DOCHIPSELECT; \
config.spiPort = SPI_PORT; \
config.sync = 1; \
config.mode = 0; \
config.clock_pin = 254; \
config.mosi_pin = 254; \
config.miso_pin = 254;
extern void modSPIInit(modSPIConfiguration config);
extern void modSPIUninit(modSPIConfiguration config);
extern void modSPITxRx(modSPIConfiguration config, uint8_t *data, uint16_t count);
extern void modSPITx(modSPIConfiguration config, uint8_t *data, uint16_t count);
extern void modSPITxSwap16(modSPIConfiguration config, uint8_t *data, uint16_t count);
extern void modSPITxRGB565LEtoRGB444(modSPIConfiguration config, uint8_t *data, uint16_t count);
extern void modSPITxRGB332To16BE(modSPIConfiguration config, uint8_t *data, uint16_t count);
extern void modSPITxGray256To16BE(modSPIConfiguration config, uint8_t *data, uint16_t count);
extern void modSPITxGray16To16BE(modSPIConfiguration config, uint8_t *data, uint16_t count);
extern void modSPIFlush(void);
extern void modSPIActivateConfiguration(modSPIConfiguration config);
#define modSPISetSync(config, _sync) (config)->sync = (_sync)
#endif