diff options
Diffstat (limited to 'firmware/target/arm/tcc780x/cowond2/button-cowond2.c')
-rw-r--r-- | firmware/target/arm/tcc780x/cowond2/button-cowond2.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/firmware/target/arm/tcc780x/cowond2/button-cowond2.c b/firmware/target/arm/tcc780x/cowond2/button-cowond2.c new file mode 100644 index 0000000000..dccdf4e8e0 --- /dev/null +++ b/firmware/target/arm/tcc780x/cowond2/button-cowond2.c | |||
@@ -0,0 +1,67 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2008 by Rob Purchase | ||
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 "cpu.h" | ||
22 | #include "button.h" | ||
23 | #include "adc.h" | ||
24 | |||
25 | void button_init_device(void) | ||
26 | { | ||
27 | /* Nothing to do */ | ||
28 | } | ||
29 | |||
30 | int button_read_device(void) | ||
31 | { | ||
32 | int btn = BUTTON_NONE; | ||
33 | int adc; | ||
34 | |||
35 | if (GPIOB & 0x4) | ||
36 | { | ||
37 | adc = adc_read(ADC_BUTTONS); | ||
38 | |||
39 | /* The following contains some abitrary, but working, guesswork */ | ||
40 | if (adc < 0x038) { | ||
41 | btn |= (BUTTON_MINUS | BUTTON_PLUS | BUTTON_MENU); | ||
42 | } else if (adc < 0x048) { | ||
43 | btn |= (BUTTON_MINUS | BUTTON_PLUS); | ||
44 | } else if (adc < 0x058) { | ||
45 | btn |= (BUTTON_PLUS | BUTTON_MENU); | ||
46 | } else if (adc < 0x070) { | ||
47 | btn |= BUTTON_PLUS; | ||
48 | } else if (adc < 0x090) { | ||
49 | btn |= (BUTTON_MINUS | BUTTON_MENU); | ||
50 | } else if (adc < 0x150) { | ||
51 | btn |= BUTTON_MINUS; | ||
52 | } else if (adc < 0x200) { | ||
53 | btn |= BUTTON_MENU; | ||
54 | } | ||
55 | } | ||
56 | |||
57 | /* TODO: Read 'fake' buttons based on touchscreen quadrants. | ||
58 | Question: How can I read from the PCF chip (I2C) in a tick task? */ | ||
59 | |||
60 | if (!(GPIOA & 0x8)) | ||
61 | btn |= BUTTON_HOLD; | ||
62 | |||
63 | if (!(GPIOA & 0x4)) | ||
64 | btn |= BUTTON_POWER; | ||
65 | |||
66 | return btn; | ||
67 | } | ||