LXR uboot/examples/api/glue.h

   1/*
   2 * (C) Copyright 2007 Semihalf
   3 *
   4 * Written by: Rafal Jaworowski <raj@semihalf.com>
   5 *
   6 * See file CREDITS for list of people who contributed to this
   7 * project.
   8 *
   9 * This program is free software; you can redistribute it and/or
  10 * modify it under the terms of the GNU General Public License as
  11 * published by the Free Software Foundation; either version 2 of
  12 * the License, or (at your option) any later version.
  13 *
  14 * This program is distributed in the hope that it will be useful,
  15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 * GNU General Public License for more details.
  18 *
  19 * You should have received a copy of the GNU General Public License
  20 * along with this program; if not, write to the Free Software
  21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22 * MA 02111-1307 USA
  23 *
  24 */
  25
  26/*
  27 * This is the header file for conveniency wrapper routines (API glue)
  28 */
  29
  30#ifndef _API_GLUE_H_
  31#define _API_GLUE_H_
  32
  33#define API_SEARCH_LEN          (3 * 1024 * 1024)       /* 3MB search range */
  34
  35#define UB_MAX_MR       5       /* max mem regions number */
  36#define UB_MAX_DEV      6       /* max devices number */
  37
  38extern void *syscall_ptr;
  39extern uint32_t search_hint;
  40
  41int     syscall(int, int *, ...);
  42int     api_search_sig(struct api_signature **sig);
  43
  44/*
  45 * The ub_ library calls are part of the application, not U-Boot code!  They
  46 * are front-end wrappers that are used by the consumer application: they
  47 * prepare arguments for particular syscall and jump to the low level
  48 * syscall()
  49 */
  50
  51/* console */
  52int     ub_getc(void);
  53int     ub_tstc(void);
  54void    ub_putc(char c);
  55void    ub_puts(const char *s);
  56
  57/* system */
  58void                    ub_reset(void);
  59struct sys_info *       ub_get_sys_info(void);
  60
  61/* time */
  62void            ub_udelay(unsigned long);
  63unsigned long   ub_get_timer(unsigned long);
  64
  65/* env vars */
  66char *          ub_env_get(const char *name);
  67void            ub_env_set(const char *name, char *value);
  68const char *    ub_env_enum(const char *last);
  69
  70/* devices */
  71int                     ub_dev_enum(void);
  72int                     ub_dev_open(int handle);
  73int                     ub_dev_close(int handle);
  74int                     ub_dev_read(int handle, void *buf, lbasize_t len,
  75                                lbastart_t start, lbasize_t *rlen);
  76int                     ub_dev_send(int handle, void *buf, int len);
  77int                     ub_dev_recv(int handle, void *buf, int len, int *rlen);
  78struct device_info *    ub_dev_get(int);
  79
  80#endif /* _API_GLUE_H_ */
  81