diff options
Diffstat (limited to 'firmware/target/arm/as3525/sansa-e200v2/button-e200v2.c')
-rw-r--r-- | firmware/target/arm/as3525/sansa-e200v2/button-e200v2.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/firmware/target/arm/as3525/sansa-e200v2/button-e200v2.c b/firmware/target/arm/as3525/sansa-e200v2/button-e200v2.c new file mode 100644 index 0000000000..fc2715216c --- /dev/null +++ b/firmware/target/arm/as3525/sansa-e200v2/button-e200v2.c | |||
@@ -0,0 +1,98 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2006 by Barry Wardell | ||
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 | /* Taken from button-h10.c by Barry Wardell and reverse engineering by MrH. */ | ||
23 | |||
24 | #include "system.h" | ||
25 | #include "button.h" | ||
26 | #include "backlight.h" | ||
27 | #include "powermgmt.h" | ||
28 | |||
29 | #define WHEEL_REPEAT_INTERVAL 300000 | ||
30 | #define WHEEL_FAST_ON_INTERVAL 20000 | ||
31 | #define WHEEL_FAST_OFF_INTERVAL 60000 | ||
32 | #define WHEELCLICKS_PER_ROTATION 48 /* wheelclicks per full rotation */ | ||
33 | |||
34 | /* Clickwheel */ | ||
35 | #ifndef BOOTLOADER | ||
36 | static unsigned int old_wheel_value = 0; | ||
37 | static unsigned int wheel_repeat = BUTTON_NONE; | ||
38 | static unsigned int wheel_click_count = 0; | ||
39 | static unsigned int wheel_delta = 0; | ||
40 | static int wheel_fast_mode = 0; | ||
41 | static unsigned long last_wheel_usec = 0; | ||
42 | static unsigned long wheel_velocity = 0; | ||
43 | static long last_wheel_post = 0; | ||
44 | static long next_backlight_on = 0; | ||
45 | /* Buttons */ | ||
46 | static bool hold_button = false; | ||
47 | static bool hold_button_old = false; | ||
48 | #define _button_hold() hold_button | ||
49 | #else | ||
50 | #define _button_hold() false /* FIXME */ | ||
51 | #endif /* BOOTLOADER */ | ||
52 | static int int_btn = BUTTON_NONE; | ||
53 | |||
54 | void button_init_device(void) | ||
55 | { | ||
56 | } | ||
57 | |||
58 | bool button_hold(void) | ||
59 | { | ||
60 | return _button_hold(); | ||
61 | } | ||
62 | |||
63 | /* clickwheel */ | ||
64 | #ifndef BOOTLOADER | ||
65 | void clickwheel_int(void) | ||
66 | { | ||
67 | } | ||
68 | #endif /* BOOTLOADER */ | ||
69 | |||
70 | /* device buttons */ | ||
71 | void button_int(void) | ||
72 | { | ||
73 | unsigned char state; | ||
74 | |||
75 | int_btn = BUTTON_NONE; | ||
76 | |||
77 | } | ||
78 | |||
79 | /* | ||
80 | * Get button pressed from hardware | ||
81 | */ | ||
82 | int button_read_device(void) | ||
83 | { | ||
84 | #ifdef BOOTLOADER | ||
85 | /* Read buttons directly in the bootloader */ | ||
86 | button_int(); | ||
87 | #else | ||
88 | /* light handling */ | ||
89 | if (hold_button != hold_button_old) | ||
90 | { | ||
91 | hold_button_old = hold_button; | ||
92 | backlight_hold_changed(hold_button); | ||
93 | } | ||
94 | #endif /* BOOTLOADER */ | ||
95 | |||
96 | /* The int_btn variable is set in the button interrupt handler */ | ||
97 | return int_btn; | ||
98 | } | ||