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Diffstat (limited to 'firmware/target/sh/archos/player/button-player.c')
-rwxr-xr-xfirmware/target/sh/archos/player/button-player.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/firmware/target/sh/archos/player/button-player.c b/firmware/target/sh/archos/player/button-player.c
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1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2006 by Jens Arnold
11 *
12 * All files in this archive are subject to the GNU General Public License.
13 * See the file COPYING in the source tree root for full license agreement.
14 *
15 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
16 * KIND, either express or implied.
17 *
18 ****************************************************************************/
19
20#include "config.h"
21#include "system.h"
22#include "button.h"
23#include "backlight.h"
24#include "adc.h"
25
26/*
27 Player hardware button hookup
28 =============================
29
30 Player
31 ------
32 LEFT: AN0
33 MENU: AN1
34 RIGHT: AN2
35 PLAY: AN3
36
37 STOP: PA11
38 ON: PA5
39
40 All buttons are low active
41*/
42
43void button_init_device(void)
44{
45 /* set PA5 and PA11 as input pins */
46 PACR1 &= 0xff3f; /* PA11MD = 00 */
47 PACR2 &= 0xfbff; /* PA5MD = 0 */
48 PAIOR &= ~0x0820; /* Inputs */
49}
50
51int button_read_device(void)
52{
53 int btn = BUTTON_NONE;
54 int data;
55
56 /* buttons are active low */
57 if (adc_read(0) < 0x180)
58 btn = BUTTON_LEFT;
59 if (adc_read(1) < 0x180)
60 btn |= BUTTON_MENU;
61 if (adc_read(2) < 0x180)
62 btn |= BUTTON_RIGHT;
63 if (adc_read(3) < 0x180)
64 btn |= BUTTON_PLAY;
65
66 /* check port A pins for ON and STOP */
67 data = PADR;
68 if ( !(data & 0x0020) )
69 btn |= BUTTON_ON;
70 if ( !(data & 0x0800) )
71 btn |= BUTTON_STOP;
72
73 return btn;
74}