From 500856eb1707ed17d9204baa61dd59948d3b2899 Mon Sep 17 00:00:00 2001 From: Rafal Jaworowski Date: Wed, 9 Jan 2008 19:39:36 +0100 Subject: API for external applications. 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 --- api_examples/glue.h | 76 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 api_examples/glue.h (limited to 'api_examples/glue.h') diff --git a/api_examples/glue.h b/api_examples/glue.h new file mode 100644 index 0000000000..a82f783cbe --- /dev/null +++ b/api_examples/glue.h @@ -0,0 +1,76 @@ +/* + * (C) Copyright 2007 Semihalf + * + * Written by: Rafal Jaworowski + * + * 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_ */ -- cgit v1.2.1