diff options
Diffstat (limited to 'firmware/target/arm/as3525/sansa-clipv2/button-clip.c')
-rw-r--r-- | firmware/target/arm/as3525/sansa-clipv2/button-clip.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/firmware/target/arm/as3525/sansa-clipv2/button-clip.c b/firmware/target/arm/as3525/sansa-clipv2/button-clip.c new file mode 100644 index 0000000000..4291665e3d --- /dev/null +++ b/firmware/target/arm/as3525/sansa-clipv2/button-clip.c | |||
@@ -0,0 +1,108 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2008 François Dinel | ||
11 | * Copyright © 2008-2009 Rafaël Carré | ||
12 | * | ||
13 | * This program is free software; you can redistribute it and/or | ||
14 | * modify it under the terms of the GNU General Public License | ||
15 | * as published by the Free Software Foundation; either version 2 | ||
16 | * of the License, or (at your option) any later version. | ||
17 | * | ||
18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
19 | * KIND, either express or implied. | ||
20 | * | ||
21 | ****************************************************************************/ | ||
22 | #include "button-target.h" | ||
23 | #include "as3525v2.h" | ||
24 | #include "kernel.h" | ||
25 | |||
26 | /* FIXME : use Clipv1 like driver (FS#10285) */ | ||
27 | |||
28 | void button_init_device(void) | ||
29 | { | ||
30 | GPIOA_DIR &= ~((1<<7) | (1<<3)); | ||
31 | GPIOD_DIR &= ~((1<<2) | (1<<1) | (1<<0)); | ||
32 | GPIOD_PIN(3) = 1<<3; | ||
33 | GPIOD_PIN(4) = 1<<4; | ||
34 | GPIOD_PIN(5) = 1<<5; | ||
35 | GPIOD_DIR |= ((1<<5) | (1<<4) | (1<<3)); | ||
36 | } | ||
37 | |||
38 | int button_read_device(void) | ||
39 | { | ||
40 | int result = 0; | ||
41 | static unsigned power_counter = 0; | ||
42 | |||
43 | if(button_hold()) | ||
44 | { | ||
45 | power_counter = HZ; | ||
46 | return 0; | ||
47 | } | ||
48 | |||
49 | /* direct GPIO connections */ | ||
50 | /* read power, but not if hold button was just released, since | ||
51 | * you basically always hit power due to the slider mechanism after | ||
52 | * releasing hold (wait 1 sec) */ | ||
53 | if (power_counter) | ||
54 | power_counter--; | ||
55 | |||
56 | if (GPIOA_PIN(7) && !power_counter) | ||
57 | result |= BUTTON_POWER; | ||
58 | |||
59 | /* This is a keypad using D3-D5 as columns and D0-D2 as rows */ | ||
60 | |||
61 | GPIOD_PIN(3) = 0x00; /* activate D3 */ | ||
62 | asm volatile ("nop\nnop\nnop\nnop\nnop\n"); /* wait a bit for reliable results */ | ||
63 | |||
64 | /* D3D0 is unused */ | ||
65 | |||
66 | if (!GPIOD_PIN(1)) | ||
67 | result |= BUTTON_VOL_UP; | ||
68 | |||
69 | if (!GPIOD_PIN(2)) | ||
70 | result |= BUTTON_UP; | ||
71 | |||
72 | GPIOD_PIN(3) = 1<<3; | ||
73 | |||
74 | GPIOD_PIN(4) = 0x00; /* activate D4 */ | ||
75 | asm volatile ("nop\nnop\nnop\nnop\nnop\n"); | ||
76 | |||
77 | if (!GPIOD_PIN(0)) | ||
78 | result |= BUTTON_LEFT; | ||
79 | |||
80 | if (!GPIOD_PIN(1)) | ||
81 | result |= BUTTON_SELECT; | ||
82 | |||
83 | if (!GPIOD_PIN(2)) | ||
84 | result |= BUTTON_RIGHT; | ||
85 | |||
86 | GPIOD_PIN(4) = 1<<4; | ||
87 | |||
88 | GPIOD_PIN(5) = 0x00; /* activate D5 */ | ||
89 | asm volatile ("nop\nnop\nnop\nnop\nnop\n"); | ||
90 | |||
91 | if (!GPIOD_PIN(0)) | ||
92 | result |= BUTTON_DOWN; | ||
93 | |||
94 | if (!GPIOD_PIN(1)) | ||
95 | result |= BUTTON_VOL_DOWN; | ||
96 | |||
97 | if (!GPIOD_PIN(2)) | ||
98 | result |= BUTTON_HOME; | ||
99 | |||
100 | GPIOD_PIN(5) = 1<<5; | ||
101 | |||
102 | return result; | ||
103 | } | ||
104 | |||
105 | bool button_hold(void) | ||
106 | { | ||
107 | return (GPIOA_PIN(3) != 0); | ||
108 | } | ||