ideasX-encoder-firmware/include/driver/spi.h

/*
 * ESPRSSIF MIT License
 *
 * Copyright (c) 2016 <ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD>
 *
 * Permission is hereby granted for use on ESPRESSIF SYSTEMS ESP8266 only, in which case,
 * it is 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 SPI_APP_H
#define SPI_APP_H

#include "spi_register.h"
#include "ets_sys.h"
#include "osapi.h"
#include "uart.h"
#include "os_type.h"
#include "spi_flash.h"

#define SPI_FLASH_BYTES_LEN                24
#define IODATA_START_ADDR                 BIT0
#define SPI_BUFF_BYTE_NUM                    32

/*SPI number define*/
#define SPI 			0
#define HSPI			1

void cache_flush(void);
//spi master init funtion
void spi_master_init(uint8 spi_no);

//lcd drive function
void spi_lcd_9bit_write(uint8 spi_no,uint8 high_bit,uint8 low_8bit);
//use spi send 8bit data
void spi_mast_byte_write(uint8 spi_no,uint8 data);

//transmit data to esp8266 slave buffer,which needs 16bit transmission ,
//first byte is master command 0x04, second byte is master data
void spi_byte_write_espslave(uint8 spi_no,uint8 data);
//read data from esp8266 slave buffer,which needs 16bit transmission ,
//first byte is master command 0x06, second byte is to read slave data
void spi_byte_read_espslave(uint8 spi_no,uint8 *data);

 //esp8266 slave mode initial
void spi_slave_init(uint8 spi_no,uint8 data_len);
  //esp8266 slave isr handle funtion,tiggered when any transmission is finished.
  //the function is registered in spi_slave_init.
void spi_slave_isr_handler(void *para); 


//hspi test function, used to test esp8266 spi slave
void hspi_master_readwrite_repeat(void);


void spi_test_init(void);


#endif