500856eb17
This is an API for external (standalone) applications running on top of U-Boot, and is meant to be more extensible and robust than the existing jumptable mechanism. It is similar to UNIX syscall approach. See api/README for more details. Included is the demo application using this new framework (api_examples). Please note this is still an experimental feature, and is turned off by default. Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/*
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* (C) Copyright 2007 Semihalf
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*
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* Written by: Rafal Jaworowski <raj@semihalf.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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/*
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* This is the header file for conveniency wrapper routines (API glue)
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*/
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#ifndef _API_GLUE_H_
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#define _API_GLUE_H_
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#define API_SEARCH_START (255 * 1024 * 1024) /* start at 1MB below top RAM */
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#define API_SEARCH_END (256 * 1024 * 1024 - 1) /* ...and search to the end */
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int syscall(int, int *, ...);
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void * syscall_ptr;
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int api_search_sig(struct api_signature **sig);
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/*
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* ub_ library calls are part of the application, not U-Boot code! They are
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* front-end wrappers that are used by the consumer application: they prepare
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* arguments for particular syscall and jump to the low level syscall()
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*/
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/* console */
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int ub_getc(void);
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int ub_tstc(void);
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void ub_putc(char c);
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void ub_puts(const char *s);
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/* system */
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void ub_reset(void);
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struct sys_info * ub_get_sys_info(void);
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/* time */
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void ub_udelay(unsigned long);
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unsigned long ub_get_timer(unsigned long);
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/* env vars */
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char * ub_env_get(const char *name);
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void ub_env_set(const char *name, char *value);
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const char * ub_env_enum(const char *last);
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/* devices */
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int ub_dev_enum(void);
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int ub_dev_open(int handle);
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int ub_dev_close(int handle);
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int ub_dev_read(int handle, void *buf,
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lbasize_t len, lbastart_t start);
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int ub_dev_send(int handle, void *buf, int len);
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int ub_dev_recv(int handle, void *buf, int len);
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struct device_info * ub_dev_get(int);
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#endif /* _API_GLUE_H_ */
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