summaryrefslogtreecommitdiffstats
path: root/firmware/target/hosted/agptek/usb-agptek.c
blob: 6c805edb5af444f30d8b831d3e07b5c7e5799b88 (plain)
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
/***************************************************************************
 *             __________               __   ___
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 *
 * Copyright (C) 2018 by Marcin Bukat
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/

#include <stdlib.h>
#include <sys/mount.h>
#include <string.h>
#include "config.h"
#include "disk.h"
#include "usb.h"
#include "sysfs.h"
#include "power.h"
#include "power-agptek.h"

static bool adb_mode = false;

/* TODO: implement usb detection properly */
int usb_detect(void)
{
    return power_input_status() == POWER_INPUT_USB_CHARGER ? USB_INSERTED : USB_EXTRACTED;
}

void usb_enable(bool on)
{
    /* Ignore usb enable/disable when ADB is enabled so we can fireup adb shell
     * without entering ums mode
     */
    if (!adb_mode)
    {
        sysfs_set_int("/sys/class/android_usb/android0/enable", on ? 1 : 0);
    }
}

/* This is called by usb thread after usb extract in order to return
 * regular FS access
 *
 * returns the # of successful mounts
*/
int disk_mount_all(void)
{
    const char *dev[] = {"/dev/mmcblk0p1", "/dev/mmcblk0"};
    const char *fs[] = {"vfat", "exfat"};

    sysfs_set_string("/sys/class/android_usb/android0/f_mass_storage/lun/file", "");

    for (int i=0; i<2; i++)
    {
        for (int j=0; j<2; j++)
        {
            if (mount(dev[i], "/mnt/sd_0", fs[j], 0, NULL) == 0)
            {
                return 1;
            }
         }
    }

    return 0;
}

/* This is called by usb thread after all threads ACKs usb inserted message
 *
 * returns the # of successful unmounts
 */
int disk_unmount_all(void)
{
    if (umount("/mnt/sd_0") == 0)
    {
        sysfs_set_string("/sys/class/android_usb/android0/f_mass_storage/lun/file", "/dev/mmcblk0");
        return 1;
    }

    return 0;
}

void usb_init_device(void)
{
    char functions[32] = {0};

    /* Check if ADB was activated in bootloader */
    sysfs_get_string("/sys/class/android_usb/android0/functions", functions, sizeof(functions));
    adb_mode = (strstr(functions, "adb") == NULL) ? false : true;

    usb_enable(false);

    if (adb_mode)
    {
        sysfs_set_string("/sys/class/android_usb/android0/functions", "mass_storage,adb");
        sysfs_set_string("/sys/class/android_usb/android0/idVendor", "18D1");
        sysfs_set_string("/sys/class/android_usb/android0/idProduct", "D002");
    }
    else
    {
        sysfs_set_string("/sys/class/android_usb/android0/functions", "mass_storage");
        sysfs_set_string("/sys/class/android_usb/android0/idVendor", "C502");
        sysfs_set_string("/sys/class/android_usb/android0/idProduct", "0029");
    }

    sysfs_set_string("/sys/class/android_usb/android0/iManufacturer", "Rockbox.org");
    sysfs_set_string("/sys/class/android_usb/android0/iProduct", "Rockbox media player");
    sysfs_set_string("/sys/class/android_usb/android0/iSerial", "0123456789ABCDEF");
    sysfs_set_string("/sys/class/android_usb/android0/f_mass_storage/inquiry_string", "Agptek Rocker 0100");
}