accessory.c revision 6b524d9b4552f20e4e689178bdb954a94daf7ab8 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <stdio.h>
18#include <stdlib.h>
19#include <stdint.h>
20#include <string.h>
21
22#include "accessory.h"
23
24static void usage(char* name) {
25    fprintf(stderr, "Usage: %s [-a] [-h] [-ic input card] [-id input device] "
26                    "[-oc output card] [-d output device] [-a] [-h] [-i]\n\n"
27                    "\t-ic, -id, -oc and -od specify ALSA card and device numbers\n"
28                    "\t-a : enables AccessoryChat mode\n"
29                    "\t-i : enables HID pass through (requires running as root\n"
30                    "\t-h : prints this usage message\n", name);
31}
32
33int main(int argc, char* argv[])
34{
35    unsigned int input_card = 2;
36    unsigned int input_device = 0;
37    unsigned int output_card = 0;
38    unsigned int output_device = 0;
39    unsigned int enable_accessory = 0;
40    unsigned int enable_hid = 0;
41
42    /* parse command line arguments */
43    argv += 1;
44    while (*argv) {
45        if (strcmp(*argv, "-ic") == 0) {
46            argv++;
47            if (*argv)
48                input_card = atoi(*argv);
49        } else if (strcmp(*argv, "-id") == 0) {
50            argv++;
51            if (*argv)
52                input_device = atoi(*argv);
53        } else if (strcmp(*argv, "-oc") == 0) {
54            argv++;
55            if (*argv)
56                output_card = atoi(*argv);
57        } else if (strcmp(*argv, "-od") == 0) {
58            argv++;
59            if (*argv)
60                output_device = atoi(*argv);
61        } else if (strcmp(*argv, "-a") == 0) {
62            enable_accessory = 1;
63        } else if (strcmp(*argv, "-h") == 0) {
64            usage(argv[0]);
65            return 1;
66        } else if (strcmp(*argv, "-i") == 0) {
67           enable_hid = 1;
68        }
69        if (*argv)
70            argv++;
71    }
72
73    init_audio(input_card, input_device, output_card, output_device);
74    if (enable_hid)
75        init_hid();
76    usb_run(enable_accessory);
77
78    return 0;
79}
80