drivers/firmware/google/memconsole.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * memconsole.h
   4  *
   5  * Internal headers of the memory based BIOS console.
   6  *
   7  * Copyright 2017 Google Inc.
   8  */
   9
  10 #ifndef __FIRMWARE_GOOGLE_MEMCONSOLE_H
  11 #define __FIRMWARE_GOOGLE_MEMCONSOLE_H
  12
  13 #include <linux/types.h>
  14
  15 /*
  16  * memconsole_setup
  17  *
  18  * Initialize the memory console, passing the function to handle read accesses.
  19  */
  20 void memconsole_setup(ssize_t (*read_func)(char *, loff_t, size_t));
  21
  22 /*
  23  * memconsole_sysfs_init
  24  *
  25  * Update memory console length and create binary file
  26  * for firmware object.
  27  */
  28 int memconsole_sysfs_init(void);
  29
  30 /* memconsole_exit
  31  *
  32  * Unmap the console buffer.
  33  */
  34 void memconsole_exit(void);
  35
  36 #endif /* __FIRMWARE_GOOGLE_MEMCONSOLE_H */