diff options
Diffstat (limited to 'firmware/target/hosted/ypr0/button-ypr0.c')
-rw-r--r-- | firmware/target/hosted/ypr0/button-ypr0.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/firmware/target/hosted/ypr0/button-ypr0.c b/firmware/target/hosted/ypr0/button-ypr0.c new file mode 100644 index 0000000000..4298410161 --- /dev/null +++ b/firmware/target/hosted/ypr0/button-ypr0.c | |||
@@ -0,0 +1,103 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id: button-sdl.c 30482 2011-09-08 14:53:28Z kugel $ | ||
9 | * | ||
10 | * Copyright (C) 2011 Lorenzo Miori | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | |||
22 | #include <stdio.h> | ||
23 | #include <unistd.h> | ||
24 | #include <fcntl.h> | ||
25 | #include <stdlib.h> /* EXIT_SUCCESS */ | ||
26 | #include "config.h" | ||
27 | #include "button.h" | ||
28 | #include "kernel.h" | ||
29 | #include "system.h" | ||
30 | #include "button-target.h" | ||
31 | |||
32 | /* R0 physical key codes */ | ||
33 | enum ypr0_buttons { | ||
34 | R0BTN_NONE = BUTTON_NONE, | ||
35 | R0BTN_POWER = 1, | ||
36 | R0BTN_UP, | ||
37 | R0BTN_DOWN, | ||
38 | R0BTN_RIGHT, | ||
39 | R0BTN_LEFT, | ||
40 | R0BTN_CENTRAL, | ||
41 | R0BTN_MENU, | ||
42 | R0BTN_BACK, | ||
43 | R0BTN_3DOTS = 11, | ||
44 | }; | ||
45 | |||
46 | |||
47 | static int r0_btn_fd = 0; | ||
48 | /* Samsung keypad driver doesn't allow multiple key combinations :( */ | ||
49 | static enum ypr0_buttons r0_read_key(void) | ||
50 | { | ||
51 | unsigned char keys; | ||
52 | |||
53 | if (r0_btn_fd < 0) | ||
54 | return 0; | ||
55 | |||
56 | if (read(r0_btn_fd, &keys, 1)) | ||
57 | return keys; | ||
58 | |||
59 | return 0; | ||
60 | } | ||
61 | |||
62 | /* Conversion from physical keypress code to logic key code */ | ||
63 | static int key_to_button(enum ypr0_buttons keyboard_button) | ||
64 | { | ||
65 | switch (keyboard_button) | ||
66 | { | ||
67 | default: return BUTTON_NONE; | ||
68 | case R0BTN_POWER: return BUTTON_POWER; | ||
69 | case R0BTN_UP: return BUTTON_UP; | ||
70 | case R0BTN_DOWN: return BUTTON_DOWN; | ||
71 | case R0BTN_RIGHT: return BUTTON_RIGHT; | ||
72 | case R0BTN_LEFT: return BUTTON_LEFT; | ||
73 | case R0BTN_CENTRAL: return BUTTON_SELECT; | ||
74 | case R0BTN_MENU: return BUTTON_MENU; | ||
75 | case R0BTN_BACK: return BUTTON_BACK; | ||
76 | case R0BTN_3DOTS: return BUTTON_USER; | ||
77 | } | ||
78 | } | ||
79 | |||
80 | int button_read_device(void) | ||
81 | { | ||
82 | return key_to_button(r0_read_key()); | ||
83 | } | ||
84 | |||
85 | |||
86 | /* Open the keypad device: it is offered by r0Btn.ko module */ | ||
87 | void button_init_device(void) | ||
88 | { | ||
89 | r0_btn_fd = open("/dev/r0Btn", O_RDONLY); | ||
90 | if (r0_btn_fd < 0) | ||
91 | printf("/dev/r0Btn open error!"); | ||
92 | } | ||
93 | |||
94 | #ifdef BUTTON_DRIVER_CLOSE | ||
95 | /* I'm not sure it's called at shutdown...give a check! */ | ||
96 | void button_close_device(void) | ||
97 | { | ||
98 | if (r0_btn_fd >= 0) { | ||
99 | close(r0_btn_fd); | ||
100 | printf("/dev/r0Btn closed!"); | ||
101 | } | ||
102 | } | ||
103 | #endif /* BUTTON_DRIVER_CLOSE */ | ||