#ifndef _TRUSTY_LOG_H_
  #define _TRUSTY_LOG_H_
  
  /*
   * Ring buffer that supports one secure producer thread and one
   * linux side consumer thread.
   */
  struct log_rb {
  	volatile uint32_t alloc;
  	volatile uint32_t put;
  	uint32_t sz;
  	volatile char data[0];
  } __packed;
  
  #define SMC_SC_SHARED_LOG_VERSION	SMC_STDCALL_NR(SMC_ENTITY_LOGGING, 0)
  #define SMC_SC_SHARED_LOG_ADD		SMC_STDCALL_NR(SMC_ENTITY_LOGGING, 1)
  #define SMC_SC_SHARED_LOG_RM		SMC_STDCALL_NR(SMC_ENTITY_LOGGING, 2)
  
  #define TRUSTY_LOG_API_VERSION	1
  
  #define SMC_ENTITY_CONSOLE 52
  #define SMC_SC_SHARED_CONSOLE_CTL SMC_STDCALL_NR(SMC_ENTITY_CONSOLE, 0)
  #define TRUSTY_CONSOLE_DISABLE 0
  #define TRUSTY_CONSOLE_ENABLE 1
  
  #endif