/*
   * (C) Copyright 2007 Semihalf
   *
   * Written by: Rafal Jaworowski <raj@semihalf.com>
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  /*
   * This is the header file for conveniency wrapper routines (API glue)
   */
  
  #ifndef _API_GLUE_H_
  #define _API_GLUE_H_
  
  #define API_SEARCH_LEN		(3 * 1024 * 1024)	/* 3MB search range */
  
  #define UB_MAX_MR	5	/* max mem regions number */
  #define UB_MAX_DEV	6	/* max devices number */
  
  extern void *syscall_ptr;
  extern uint32_t search_hint;
  
  int	syscall(int, int *, ...);
  int	api_search_sig(struct api_signature **sig);
  
  /*
   * The ub_ library calls are part of the application, not U-Boot code!  They
   * are front-end wrappers that are used by the consumer application: they
   * prepare arguments for particular syscall and jump to the low level
   * syscall()
   */
  
  /* console */
  int	ub_getc(void);
  int	ub_tstc(void);
  void	ub_putc(char c);
  void	ub_puts(const char *s);
  
  /* system */
  void			ub_reset(void);
  struct sys_info *	ub_get_sys_info(void);
  
  /* time */
  void		ub_udelay(unsigned long);
  unsigned long	ub_get_timer(unsigned long);
  
  /* env vars */
  char *		ub_env_get(const char *name);
  void		ub_env_set(const char *name, char *value);
  const char *	ub_env_enum(const char *last);
  
  /* devices */
  int			ub_dev_enum(void);
  int			ub_dev_open(int handle);
  int			ub_dev_close(int handle);
  int			ub_dev_read(int handle, void *buf, lbasize_t len,
  				lbastart_t start, lbasize_t *rlen);
  int			ub_dev_send(int handle, void *buf, int len);
  int			ub_dev_recv(int handle, void *buf, int len, int *rlen);
  struct device_info *	ub_dev_get(int);
  
  /* display */
  int ub_display_get_info(int type, struct display_info *di);
  int ub_display_draw_bitmap(ulong bitmap, int x, int y);
  void ub_display_clear(void);
  
  #endif /* _API_GLUE_H_ */