common: avb_verify: prevent opening incorrect session
[platform/kernel/u-boot.git] / common / splash.c
1 /*
2  * Copyright (C) 2013, Boundary Devices <info@boundarydevices.com>
3  *
4  * See file CREDITS for list of people who contributed to this
5  * project.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 of
10  * the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., http://www.fsf.org/about/contact/
20  *
21  */
22
23 #include <common.h>
24 #include <display_options.h>
25 #include <env.h>
26 #include <splash.h>
27 #include <video.h>
28
29 static struct splash_location default_splash_locations[] = {
30         {
31                 .name = "sf",
32                 .storage = SPLASH_STORAGE_SF,
33                 .flags = SPLASH_STORAGE_RAW,
34                 .offset = 0x0,
35         },
36         {
37                 .name = "mmc_fs",
38                 .storage = SPLASH_STORAGE_MMC,
39                 .flags = SPLASH_STORAGE_FS,
40                 .devpart = "0:1",
41         },
42         {
43                 .name = "mmc_raw",
44                 .storage = SPLASH_STORAGE_MMC,
45                 .flags = SPLASH_STORAGE_RAW,
46                 .devpart = "0:1",
47         },
48         {
49                 .name = "usb_fs",
50                 .storage = SPLASH_STORAGE_USB,
51                 .flags = SPLASH_STORAGE_FS,
52                 .devpart = "0:1",
53         },
54         {
55                 .name = "sata_fs",
56                 .storage = SPLASH_STORAGE_SATA,
57                 .flags = SPLASH_STORAGE_FS,
58                 .devpart = "0:1",
59         },
60 };
61
62 #ifdef CONFIG_VIDEO_LOGO
63
64 #include <bmp_logo_data.h>
65
66 static int splash_video_logo_load(void)
67 {
68         char *splashimage;
69         ulong bmp_load_addr;
70
71         splashimage = env_get("splashimage");
72         if (!splashimage)
73                 return -ENOENT;
74
75         bmp_load_addr = hextoul(splashimage, 0);
76         if (!bmp_load_addr) {
77                 printf("Error: bad 'splashimage' address\n");
78                 return -EFAULT;
79         }
80
81         memcpy((void *)bmp_load_addr, bmp_logo_bitmap,
82                ARRAY_SIZE(bmp_logo_bitmap));
83
84         return 0;
85 }
86 #else
87 static inline int splash_video_logo_load(void) { return -ENOSYS; }
88 #endif
89
90 __weak int splash_screen_prepare(void)
91 {
92         if (IS_ENABLED(CONFIG_SPLASH_SOURCE))
93                 return splash_source_load(default_splash_locations,
94                                           ARRAY_SIZE(default_splash_locations));
95
96         return splash_video_logo_load();
97 }
98
99 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
100 void splash_get_pos(int *x, int *y)
101 {
102         char *s = env_get("splashpos");
103
104         if (!s)
105                 return;
106
107         if (s[0] == 'm')
108                 *x = BMP_ALIGN_CENTER;
109         else
110                 *x = simple_strtol(s, NULL, 0);
111
112         s = strchr(s + 1, ',');
113         if (s != NULL) {
114                 if (s[1] == 'm')
115                         *y = BMP_ALIGN_CENTER;
116                 else
117                         *y = simple_strtol(s + 1, NULL, 0);
118         }
119 }
120 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
121
122 #if defined(CONFIG_VIDEO) && !defined(CONFIG_HIDE_LOGO_VERSION)
123
124 #ifdef CONFIG_VIDEO_LOGO
125 #include <bmp_logo.h>
126 #endif
127 #include <dm.h>
128 #include <video_console.h>
129 #include <video_font.h>
130
131 void splash_display_banner(void)
132 {
133         struct udevice *dev;
134         char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
135         int col, row, ret;
136
137         ret = uclass_get_device(UCLASS_VIDEO_CONSOLE, 0, &dev);
138         if (ret)
139                 return;
140
141 #ifdef CONFIG_VIDEO_LOGO
142         col = BMP_LOGO_WIDTH / VIDEO_FONT_WIDTH + 1;
143         row = BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT + 1;
144 #else
145         col = 0;
146         row = 0;
147 #endif
148
149         display_options_get_banner(false, buf, sizeof(buf));
150         vidconsole_position_cursor(dev, col, 1);
151         vidconsole_put_string(dev, buf);
152         vidconsole_position_cursor(dev, 0, row);
153 }
154 #endif /* CONFIG_VIDEO && !CONFIG_HIDE_LOGO_VERSION */
155
156 /*
157  * Common function to show a splash image if env("splashimage") is set.
158  * For additional details please refer to doc/README.splashprepare.
159  */
160 #if defined(CONFIG_SPLASH_SCREEN) && defined(CONFIG_CMD_BMP)
161 int splash_display(void)
162 {
163         ulong addr;
164         char *s;
165         int x = 0, y = 0, ret;
166
167         s = env_get("splashimage");
168         if (!s)
169                 return -EINVAL;
170
171         addr = hextoul(s, NULL);
172         ret = splash_screen_prepare();
173         if (ret)
174                 return ret;
175
176         splash_get_pos(&x, &y);
177
178         ret = bmp_display(addr, x, y);
179
180         /* Skip banner output on video console if the logo is not at 0,0 */
181         if (x || y)
182                 goto end;
183
184 #if defined(CONFIG_VIDEO) && !defined(CONFIG_HIDE_LOGO_VERSION)
185         splash_display_banner();
186 #endif
187 end:
188         return ret;
189 }
190 #endif