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
|
/**
* This file is part of libsamsung-ipc.
*
* Copyright (C) 2010-2011 Joerie de Gram <j.de.gram@gmail.com>
*
* libsamsung-ipc 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 3 of the License, or
* (at your option) any later version.
*
* libsamsung-ipc 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 libsamsung-ipc. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <termios.h>
#include <unistd.h>
#include <fcntl.h>
#include "ipc_private.h"
#include "h1_ipc.h"
/* FIXME: move to io_data */
static int fd = 0;
int h1_ipc_open()
{
struct termios termios;
fd = open(DPRAM_TTY, O_RDWR);
if(fd < 0) {
return 1;
}
tcgetattr(fd, &termios);
cfmakeraw(&termios);
tcsetattr(fd, TCSANOW, &termios);
return 0;
}
int h1_ipc_close()
{
if(fd) {
return close(fd);
}
return 0;
}
int h1_ipc_power_on()
{
ioctl(fd, IOCTL_PHONE_ON);
return 0;
}
int h1_ipc_power_off()
{
ioctl(fd, IOCTL_PHONE_OFF);
return 0;
}
int h1_ipc_send(struct ipc_client *client, struct ipc_message_info *request)
{
struct hdlc_header *hdlc;
unsigned char *frame;
unsigned char *payload;
int frame_length;
/* Frame length: HDLC/IPC header + payload length + HDLC flags (2) */
frame_length = (sizeof(*hdlc) + request->length + 2);
frame = (unsigned char*)malloc(frame_length);
frame[0] = FRAME_START;
frame[frame_length-1] = FRAME_END;
/* Setup HDLC header */
hdlc = (struct hdlc_header*)(frame + 1);
hdlc->length = (sizeof(*hdlc) + request->length);
hdlc->unknown = 0;
/* IPC header */
hdlc->ipc.length = (sizeof(hdlc->ipc) + request->length);
hdlc->ipc.mseq = request->mseq;
hdlc->ipc.aseq = request->aseq;
hdlc->ipc.group = request->group;
hdlc->ipc.index = request->index;
hdlc->ipc.type = request->type;
/* IPC payload */
payload = (frame + 1 + sizeof(*hdlc));
memcpy(payload, request->data, request->length);
ipc_client_log(client, "sending %s %s\n",
ipc_command_type_to_str(IPC_COMMAND(request)),
ipc_response_type_to_str(request->type));
hex_dump(frame, frame_length);
client->handlers->write(frame, frame_length, client->handlers->io_data);
free(frame);
return 0;
}
int h1_ipc_recv(struct ipc_client *client, struct ipc_message_info *response)
{
unsigned char buf[4];
unsigned char *data;
unsigned short *frame_length;
struct ipc_header *ipc;
int num_read;
int left;
num_read = client->handlers->read((void*)buf, sizeof(buf), client->handlers->io_data);
if(num_read == sizeof(buf) && *buf == FRAME_START) {
frame_length = (unsigned short*)&buf[1];
left = (*frame_length - 3 + 1);
data = (unsigned char*)malloc(left);
num_read = client->handlers->read((void*)data, left, client->handlers->io_data);
if(num_read == left && data[left-1] == FRAME_END) {
ipc = (struct ipc_header*)data;
response->mseq = ipc->mseq;
response->aseq = ipc->aseq;
response->group = ipc->group;
response->index = ipc->index;
response->type = ipc->type;
response->length = (ipc->length - sizeof(*ipc));
response->data = (unsigned char*)malloc(response->length);
memcpy(response->data, (data + sizeof(*ipc)), response->length);
ipc_client_log(client, "received %s %s\n",
ipc_command_type_to_str(IPC_COMMAND(response)),
ipc_response_type_to_str(response->type));
hex_dump(data, num_read-1);
return 0;
}
}
return 0;
}
int h1_ipc_read(void *data, unsigned int size, void *io_data)
{
return read(fd, data, size);
}
int h1_ipc_write(void *data, unsigned int size, void *io_data)
{
return write(fd, data, size);
}
struct ipc_handlers ipc_default_handlers = {
.open = h1_ipc_open,
.close = h1_ipc_close,
.power_on = h1_ipc_power_on,
.power_off = h1_ipc_power_off,
.read = h1_ipc_read,
.write = h1_ipc_write,
.io_data_reg = NULL,
.io_data_unreg = NULL,
.io_data = NULL,
};
struct ipc_ops ipc_ops = {
.send = h1_ipc_send,
.recv = h1_ipc_recv,
.bootstrap = NULL,
};
|
