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kernel/linux-imx6_3.14.28/drivers/input/serio/i8042.h 1.82 KB
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  #ifndef _I8042_H
  #define _I8042_H
  
  
  /*
   *  Copyright (c) 1999-2002 Vojtech Pavlik
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 as published by
   * the Free Software Foundation.
   */
  
  /*
   * Arch-dependent inline functions and defines.
   */
  
  #if defined(CONFIG_MACH_JAZZ)
  #include "i8042-jazzio.h"
  #elif defined(CONFIG_SGI_HAS_I8042)
  #include "i8042-ip22io.h"
  #elif defined(CONFIG_SNI_RM)
  #include "i8042-snirm.h"
  #elif defined(CONFIG_PPC)
  #include "i8042-ppcio.h"
  #elif defined(CONFIG_SPARC)
  #include "i8042-sparcio.h"
  #elif defined(CONFIG_X86) || defined(CONFIG_IA64)
  #include "i8042-x86ia64io.h"
  #elif defined(CONFIG_UNICORE32)
  #include "i8042-unicore32io.h"
  #else
  #include "i8042-io.h"
  #endif
  
  /*
   * This is in 50us units, the time we wait for the i8042 to react. This
   * has to be long enough for the i8042 itself to timeout on sending a byte
   * to a non-existent mouse.
   */
  
  #define I8042_CTL_TIMEOUT	10000
  
  /*
   * Return codes.
   */
  
  #define I8042_RET_CTL_TEST	0x55
  
  /*
   * Expected maximum internal i8042 buffer size. This is used for flushing
   * the i8042 buffers.
   */
  
  #define I8042_BUFFER_SIZE	16
  
  /*
   * Number of AUX ports on controllers supporting active multiplexing
   * specification
   */
  
  #define I8042_NUM_MUX_PORTS	4
  
  /*
   * Debug.
   */
  
  #ifdef DEBUG
  static unsigned long i8042_start_time;
  #define dbg_init() do { i8042_start_time = jiffies; } while (0)
  #define dbg(format, arg...)							\
  	do {									\
  		if (i8042_debug)						\
  			printk(KERN_DEBUG KBUILD_MODNAME ": [%d] " format,	\
  			       (int) (jiffies - i8042_start_time), ##arg);	\
  	} while (0)
  #else
  #define dbg_init() do { } while (0)
  #define dbg(format, arg...)							\
  	do {									\
  		if (0)								\
  			printk(KERN_DEBUG pr_fmt(format), ##arg);		\
  	} while (0)
  #endif
  
  #endif /* _I8042_H */