diff options
Diffstat (limited to 'utils/time-sync/ipod-scsi.c')
-rw-r--r-- | utils/time-sync/ipod-scsi.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/utils/time-sync/ipod-scsi.c b/utils/time-sync/ipod-scsi.c new file mode 100644 index 0000000000..163cfbca8f --- /dev/null +++ b/utils/time-sync/ipod-scsi.c | |||
@@ -0,0 +1,100 @@ | |||
1 | /* Copyright (c) 2007, Christophe Fergeau <teuf@gnome.org> | ||
2 | * Part of the libgpod project. | ||
3 | * | ||
4 | * URL: http://www.gtkpod.org/ | ||
5 | * URL: http://gtkpod.sourceforge.net/ | ||
6 | * | ||
7 | * The code contained in this file is free software; you can redistribute | ||
8 | * it and/or modify it under the terms of the GNU Lesser General Public | ||
9 | * License as published by the Free Software Foundation; either version | ||
10 | * 2.1 of the License, or (at your option) any later version. | ||
11 | * | ||
12 | * This file 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 GNU | ||
15 | * Lesser General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU Lesser General Public | ||
18 | * License along with this code; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | * iTunes and iPod are trademarks of Apple | ||
22 | * | ||
23 | * This product is not supported/written/published by Apple! | ||
24 | * | ||
25 | */ | ||
26 | |||
27 | #include <fcntl.h> | ||
28 | #include <stdio.h> | ||
29 | #include <stdlib.h> | ||
30 | #include <stdint.h> | ||
31 | #include <string.h> | ||
32 | #include <unistd.h> | ||
33 | #include <scsi/sg_cmds.h> | ||
34 | #include <endian.h> | ||
35 | #include <time.h> | ||
36 | |||
37 | static int do_sg_write_buffer (const char *device, void *buffer, size_t len) | ||
38 | { | ||
39 | int fd; | ||
40 | size_t i; | ||
41 | |||
42 | fd = open (device, O_RDWR); | ||
43 | if (fd < 0) { | ||
44 | printf ("Couldn't open device %s\n", device); | ||
45 | return -1; | ||
46 | } | ||
47 | |||
48 | printf (" Data Payload: "); | ||
49 | for (i = 0; i < len; i++) { | ||
50 | printf ("%02x ", *((uint8_t *)buffer+i)); | ||
51 | } | ||
52 | printf ("\n"); | ||
53 | |||
54 | if (sg_ll_write_buffer (fd, 1, 0, 0x0c0000, buffer, len, 1, 1) != 0) { | ||
55 | close(fd); | ||
56 | return -2; | ||
57 | } | ||
58 | close(fd); | ||
59 | |||
60 | return 0; | ||
61 | } | ||
62 | |||
63 | int sync_time (const char *device, struct tm *tm) | ||
64 | { | ||
65 | struct iPodTime { | ||
66 | uint16_t year; | ||
67 | uint16_t days; | ||
68 | uint8_t timezone; | ||
69 | uint8_t hour; | ||
70 | uint8_t minute; | ||
71 | uint8_t second; | ||
72 | uint8_t dst; | ||
73 | uint8_t padding[3]; | ||
74 | } __attribute__((__packed__)); | ||
75 | struct iPodTime ipod_time; | ||
76 | |||
77 | if (tm == NULL) { | ||
78 | time_t current_time; | ||
79 | current_time = time (NULL); | ||
80 | tm = localtime (¤t_time); | ||
81 | } | ||
82 | |||
83 | ipod_time.year = htobe16 (1900+tm->tm_year); | ||
84 | ipod_time.days = htobe16 (tm->tm_yday); | ||
85 | /* the timezone value is the shift east of UTC in 15 min chunks | ||
86 | * so eg. UTC+2 is 2*4 = 8 | ||
87 | */ | ||
88 | ipod_time.timezone = tm->tm_gmtoff / 900; | ||
89 | ipod_time.hour = tm->tm_hour; | ||
90 | ipod_time.minute = tm->tm_min; | ||
91 | ipod_time.second = tm->tm_sec; | ||
92 | if (tm->tm_isdst) { | ||
93 | ipod_time.dst = 1; | ||
94 | } else { | ||
95 | ipod_time.dst = 0; | ||
96 | } | ||
97 | memset (ipod_time.padding, 0, sizeof (ipod_time.padding)); | ||
98 | |||
99 | return do_sg_write_buffer (device, &ipod_time, sizeof (ipod_time)); | ||
100 | } | ||