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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id: main.c 11997 2007-01-13 09:08:18Z miipekk $
*
* Copyright (C) 2005 by Linus Nielsen Feltzing
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "lcd.h"
#include "lcd-remote.h"
#include "font.h"
#include "system.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdbool.h>
#include "cpu.h"
#include "common.h"
/* TODO: Other bootloaders need to be adjusted to set this variable to true
on a button press - currently only the ipod version does. */
#ifdef IPOD_ARCH
bool verbose = false;
#else
bool verbose = true;
#endif
int line = 0;
#ifdef HAVE_REMOTE_LCD
int remote_line = 0;
#endif
char printfbuf[256];
void reset_screen(void)
{
lcd_clear_display();
line = 0;
#ifdef HAVE_REMOTE_LCD
lcd_remote_clear_display();
remote_line = 0;
#endif
}
void printf(const char *format, ...)
{
int len;
unsigned char *ptr;
va_list ap;
va_start(ap, format);
ptr = printfbuf;
len = vsnprintf(ptr, sizeof(printfbuf), format, ap);
va_end(ap);
lcd_puts(0, line++, ptr);
if (verbose)
lcd_update();
if(line >= LCD_HEIGHT/SYSFONT_HEIGHT)
line = 0;
#ifdef HAVE_REMOTE_LCD
lcd_remote_puts(0, remote_line++, ptr);
if (verbose)
lcd_remote_update();
if(remote_line >= LCD_REMOTE_HEIGHT/SYSFONT_HEIGHT)
remote_line = 0;
#endif
}
char *strerror(int error)
{
switch(error)
{
case EOK:
return "OK";
case EFILE_NOT_FOUND:
return "File not found";
case EREAD_CHKSUM_FAILED:
return "Read failed (chksum)";
case EREAD_MODEL_FAILED:
return "Read failed (model)";
case EREAD_IMAGE_FAILED:
return "Read failed (image)";
case EBAD_CHKSUM:
return "Bad checksum";
case EFILE_TOO_BIG:
return "File too big";
default:
return "Unknown";
}
}
/* Load firmware image in a format created by tools/scramble */
int load_firmware(unsigned char* buf, char* firmware, int buffer_size)
{
int fd;
int rc;
int len;
unsigned long chksum;
char model[5];
unsigned long sum;
int i;
char filename[MAX_PATH];
snprintf(filename,sizeof(filename),"/.rockbox/%s",firmware);
fd = open(filename, O_RDONLY);
if(fd < 0)
{
snprintf(filename,sizeof(filename),"/%s",firmware);
fd = open(filename, O_RDONLY);
if(fd < 0)
return EFILE_NOT_FOUND;
}
len = filesize(fd) - 8;
printf("Length: %x", len);
if (len > buffer_size)
return EFILE_TOO_BIG;
lseek(fd, FIRMWARE_OFFSET_FILE_CRC, SEEK_SET);
rc = read(fd, &chksum, 4);
chksum=betoh32(chksum); /* Rockbox checksums are big-endian */
if(rc < 4)
return EREAD_CHKSUM_FAILED;
printf("Checksum: %x", chksum);
rc = read(fd, model, 4);
if(rc < 4)
return EREAD_MODEL_FAILED;
model[4] = 0;
printf("Model name: %s", model);
printf("Loading %s", firmware);
lseek(fd, FIRMWARE_OFFSET_FILE_DATA, SEEK_SET);
rc = read(fd, buf, len);
if(rc < len)
return EREAD_IMAGE_FAILED;
close(fd);
sum = MODEL_NUMBER;
for(i = 0;i < len;i++) {
sum += buf[i];
}
printf("Sum: %x", sum);
if(sum != chksum)
return EBAD_CHKSUM;
return EOK;
}
/* Load raw binary image. */
int load_raw_firmware(unsigned char* buf, char* firmware, int buffer_size)
{
int fd;
int rc;
int len;
char filename[MAX_PATH];
snprintf(filename,sizeof(filename),"%s",firmware);
fd = open(filename, O_RDONLY);
if(fd < 0)
{
return EFILE_NOT_FOUND;
}
len = filesize(fd);
if (len > buffer_size)
return EFILE_TOO_BIG;
rc = read(fd, buf, len);
if(rc < len)
return EREAD_IMAGE_FAILED;
close(fd);
return len;
}
/* These functions are present in the firmware library, but we reimplement
them here because the originals do a lot more than we want */
void reset_poweroff_timer(void)
{
}
int dbg_ports(void)
{
return 0;
}
void mpeg_stop(void)
{
}
void sys_poweroff(void)
{
}
|
