text: /* SoC support for ESP8266/ESP32.
   *
   * Provide a unified interface where possible, from ESP8266 Non-OS SDK & esp-idf
   * headers.
   *
   */
  #pragma once
  
  #ifdef ESP8266
  #define SPI_IDX 0
  
  #include "ets_sys.h"
  #include "eagle_soc.h"
  #include "driver_lib/include/driver/uart_register.h"
  #include "driver_lib/include/driver/spi_register.h"
  
  /* Harmonise register names between ESP8266 & -32 */
  #define SPI_CMD_REG(X) SPI_CMD(X)
  #define SPI_W0_REG(X) SPI_W0(X)
  #define SPI_ADDR_REG(X) SPI_ADDR(X)
  #define SPI_EXT2_REG(X) SPI_EXT2(X)
  #define SPI_RD_STATUS_REG(X) SPI_RD_STATUS(X)
  
  #define SPI_ST 0x7 /* field in SPI_EXT2_REG */
  
  #define REG_READ READ_PERI_REG
  #define REG_WRITE WRITE_PERI_REG
  
  #define ETS_UART0_INUM ETS_UART_INUM
  
  #else
  #define SPI_IDX 1
  
  #include <stdint.h>
  #include <stdbool.h>
  #include <stddef.h>
  #include "soc/soc.h"
  #include "soc/uart_reg.h"
  #endif
  