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  • /*
     * (C) Copyright 2007 Semihalf
     *
     * Written by: Rafal Jaworowski <raj@semihalf.com>
     *
     * See file CREDITS for list of people who contributed to this
     * project.
     *
     * This program is free software; you can redistribute it and/or
     * modify it under the terms of the GNU General Public License as
     * published by the Free Software Foundation; either version 2 of
     * the License, or (at your option) any later version.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program; if not, write to the Free Software
     * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
     * MA 02111-1307 USA
     *
     */
    
    /*
     * This is the header file for conveniency wrapper routines (API glue)
     */
    
    #ifndef _API_GLUE_H_
    #define _API_GLUE_H_
    
    #define API_SEARCH_START	(255 * 1024 * 1024)	/* start at 1MB below top RAM */
    #define API_SEARCH_END		(256 * 1024 * 1024 - 1)	/* ...and search to the end */
    
    int	syscall(int, int *, ...);
    void *	syscall_ptr;
    
    int	api_search_sig(struct api_signature **sig);
    
    /*
     * 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);
    int			ub_dev_send(int handle, void *buf, int len);
    int			ub_dev_recv(int handle, void *buf, int len);
    struct device_info *	ub_dev_get(int);
    
    #endif /* _API_GLUE_H_ */