diff options
Diffstat (limited to 'firmware/target/hosted/agptek/button-agptek.c')
-rw-r--r-- | firmware/target/hosted/agptek/button-agptek.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/firmware/target/hosted/agptek/button-agptek.c b/firmware/target/hosted/agptek/button-agptek.c new file mode 100644 index 0000000000..a8b5debee5 --- /dev/null +++ b/firmware/target/hosted/agptek/button-agptek.c | |||
@@ -0,0 +1,149 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___ | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * | ||
9 | * Copyright (C) 2017 Marcin Bukat | ||
10 | * | ||
11 | * This program is free software; you can redistribute it and/or | ||
12 | * modify it under the terms of the GNU General Public License | ||
13 | * as published by the Free Software Foundation; either version 2 | ||
14 | * of the License, or (at your option) any later version. | ||
15 | * | ||
16 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
17 | * KIND, either express or implied. | ||
18 | * | ||
19 | ****************************************************************************/ | ||
20 | #include <poll.h> | ||
21 | //#include <dir.h> | ||
22 | #include <errno.h> | ||
23 | #include <unistd.h> | ||
24 | #include <sys/types.h> | ||
25 | #include <linux/input.h> | ||
26 | #include <fcntl.h> | ||
27 | #include <string.h> | ||
28 | #include <stdlib.h> | ||
29 | |||
30 | #include "sysfs.h" | ||
31 | #include "button.h" | ||
32 | #include "button-target.h" | ||
33 | #include "panic.h" | ||
34 | |||
35 | #define NR_POLL_DESC 2 | ||
36 | static struct pollfd poll_fds[NR_POLL_DESC]; | ||
37 | |||
38 | static int button_map(int keycode) | ||
39 | { | ||
40 | switch(keycode) | ||
41 | { | ||
42 | case KEY_LEFT: | ||
43 | return BUTTON_LEFT; | ||
44 | |||
45 | case KEY_RIGHT: | ||
46 | return BUTTON_RIGHT; | ||
47 | |||
48 | case KEY_UP: | ||
49 | return BUTTON_UP; | ||
50 | |||
51 | case KEY_DOWN: | ||
52 | return BUTTON_DOWN; | ||
53 | |||
54 | case KEY_PLAYPAUSE: | ||
55 | return BUTTON_SELECT; | ||
56 | |||
57 | case KEY_VOLUMEUP: | ||
58 | return BUTTON_VOLUP; | ||
59 | |||
60 | case KEY_VOLUMEDOWN: | ||
61 | return BUTTON_VOLDOWN; | ||
62 | |||
63 | case KEY_POWER: | ||
64 | return BUTTON_POWER; | ||
65 | |||
66 | default: | ||
67 | return 0; | ||
68 | } | ||
69 | } | ||
70 | |||
71 | void button_init_device(void) | ||
72 | { | ||
73 | const char * const input_devs[] = { | ||
74 | "/dev/input/event0", | ||
75 | "/dev/input/event1" | ||
76 | }; | ||
77 | |||
78 | for(int i = 0; i < NR_POLL_DESC; i++) | ||
79 | { | ||
80 | int fd = open(input_devs[i], O_RDWR); | ||
81 | |||
82 | if(fd < 0) | ||
83 | { | ||
84 | panicf("Cannot open input device: %s\n", input_devs[i]); | ||
85 | } | ||
86 | |||
87 | poll_fds[i].fd = fd; | ||
88 | poll_fds[i].events = POLLIN; | ||
89 | poll_fds[i].revents = 0; | ||
90 | } | ||
91 | } | ||
92 | |||
93 | int button_read_device(void) | ||
94 | { | ||
95 | static int button_bitmap = 0; | ||
96 | struct input_event event; | ||
97 | |||
98 | /* check if there are any events pending and process them */ | ||
99 | while(poll(poll_fds, NR_POLL_DESC, 0)) | ||
100 | { | ||
101 | for(int i = 0; i < NR_POLL_DESC; i++) | ||
102 | { | ||
103 | /* read only if non-blocking */ | ||
104 | if(poll_fds[i].revents & POLLIN) | ||
105 | { | ||
106 | int size = read(poll_fds[i].fd, &event, sizeof(event)); | ||
107 | if(size == (int)sizeof(event)) | ||
108 | { | ||
109 | int keycode = event.code; | ||
110 | /* event.value == 0x10000 means press | ||
111 | * event.value == 0 means release | ||
112 | */ | ||
113 | bool press = event.value ? true : false; | ||
114 | |||
115 | /* map linux event code to rockbox button bitmap */ | ||
116 | if(press) | ||
117 | { | ||
118 | button_bitmap |= button_map(keycode); | ||
119 | } | ||
120 | else | ||
121 | { | ||
122 | button_bitmap &= ~button_map(keycode); | ||
123 | } | ||
124 | } | ||
125 | } | ||
126 | } | ||
127 | } | ||
128 | |||
129 | return button_bitmap; | ||
130 | } | ||
131 | |||
132 | bool headphones_inserted(void) | ||
133 | { | ||
134 | int status = 0; | ||
135 | const char * const sysfs_hp_switch = "/sys/devices/switch/headset/status"; | ||
136 | sysfs_get_int(sysfs_hp_switch, &status); | ||
137 | |||
138 | return status ? true : false; | ||
139 | } | ||
140 | |||
141 | void button_close_device(void) | ||
142 | { | ||
143 | /* close descriptors */ | ||
144 | for(int i = 0; i < NR_POLL_DESC; i++) | ||
145 | { | ||
146 | close(poll_fds[i].fd); | ||
147 | } | ||
148 | } | ||
149 | |||