aboutsummaryrefslogtreecommitdiff
path: root/include/api_public.h
blob: 4420c990b4cca52ae3a080748c7e278e0442a9d0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
/*
 * (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_ */