api_public.h
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/*
* (C) Copyright 2007-2008 Semihalf
*
* Written by: Rafal Jaworowski <raj@semihalf.com>
*
* This file is dual licensed; you can use it under the terms of
* either the GPL, or the BSD license, at your option.
*
* I. GPL:
*
* This file 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 file 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
*
* Alternatively,
*
* II. BSD license:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _API_PUBLIC_H_
#define _API_PUBLIC_H_
#define API_EINVAL 1 /* invalid argument(s) */
#define API_ENODEV 2 /* no device */
#define API_ENOMEM 3 /* no memory */
#define API_EBUSY 4 /* busy, occupied etc. */
#define API_EIO 5 /* I/O error */
#define API_ESYSC 6 /* syscall error */
typedef int (*scp_t)(int, int *, ...);
#define API_SIG_VERSION 1
#define API_SIG_MAGIC "UBootAPI"
#define API_SIG_MAGLEN 8
struct api_signature {
char magic[API_SIG_MAGLEN]; /* magic string */
uint16_t version; /* API version */
uint32_t checksum; /* checksum of this sig struct */
scp_t syscall; /* entry point to the API */
};
enum {
API_RSVD = 0,
API_GETC,
API_PUTC,
API_TSTC,
API_PUTS,
API_RESET,
API_GET_SYS_INFO,
API_UDELAY,
API_GET_TIMER,
API_DEV_ENUM,
API_DEV_OPEN,
API_DEV_CLOSE,
API_DEV_READ,
API_DEV_WRITE,
API_ENV_ENUM,
API_ENV_GET,
API_ENV_SET,
API_DISPLAY_GET_INFO,
API_DISPLAY_DRAW_BITMAP,
API_DISPLAY_CLEAR,
API_MAXCALL
};
#define MR_ATTR_FLASH 0x0001
#define MR_ATTR_DRAM 0x0002
#define MR_ATTR_SRAM 0x0003
struct mem_region {
unsigned long start;
unsigned long size;
int flags;
};
struct sys_info {
unsigned long clk_bus;
unsigned long clk_cpu;
unsigned long bar;
struct mem_region *mr;
int mr_no; /* number of memory regions */
};
#undef CONFIG_SYS_64BIT_LBA
#ifdef CONFIG_SYS_64BIT_LBA
typedef u_int64_t lbasize_t;
#else
typedef unsigned long lbasize_t;
#endif
typedef unsigned long lbastart_t;
#define DEV_TYP_NONE 0x0000
#define DEV_TYP_NET 0x0001
#define DEV_TYP_STOR 0x0002
#define DT_STOR_IDE 0x0010
#define DT_STOR_SCSI 0x0020
#define DT_STOR_USB 0x0040
#define DT_STOR_MMC 0x0080
#define DT_STOR_SATA 0x0100
#define DEV_STA_CLOSED 0x0000 /* invalid, closed */
#define DEV_STA_OPEN 0x0001 /* open i.e. active */
struct device_info {
int type;
void *cookie;
union {
struct {
lbasize_t block_count; /* no of blocks */
unsigned long block_size; /* size of one block */
} storage;
struct {
unsigned char hwaddr[6];
} net;
} info;
#define di_stor info.storage
#define di_net info.net
int state;
};
#define DISPLAY_TYPE_LCD 0x0001
#define DISPLAY_TYPE_VIDEO 0x0002
struct display_info {
int type;
/* screen size in pixels */
int pixel_width;
int pixel_height;
/* screen size in rows and columns of text */
int screen_rows;
int screen_cols;
};
#endif /* _API_PUBLIC_H_ */