1 /***************************************************************************
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
10 * Copyright (C) 2006 by Greg White
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.
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
20 ****************************************************************************/
36 #include "backlight.h"
37 #include "backlight-target.h"
43 #include "rbunicode.h"
46 #include "rockboxlogo.h"
51 char version
[] = APPSVERSION
;
52 #define LONG_DELAY 200000
53 #define SHORT_DELAY 50000
54 #define PAUSE_DELAY 50000
56 static inline void delay(int duration
)
59 for(i
=0;i
<duration
;i
++);
63 void bl_debug(bool bit
)
67 PDAT0
^= (1 << 2); //Toggle backlight
69 PDAT0
^= (1 << 2); //Toggle backlight
74 PDAT0
^= (1 << 2); //Toggle backlight
76 PDAT0
^= (1 << 2); //Toggle backlight
81 void bl_debug_count(unsigned int input
)
85 for (i
= 0; i
< input
; i
++)
87 PDAT0
^= (1 << 2); //Toggle backlight
89 PDAT0
^= (1 << 2); //Toggle backlight
93 void bl_debug_int(unsigned int input
,unsigned int count
)
96 for (i
= 0; i
< count
; i
++)
98 bl_debug(input
>>i
& 1);
100 delay(SHORT_DELAY
*6);
107 //Set backlight pin to output and enable
109 PCON0
= ((oldval
& ~(3 << 4)) | (1 << 4));
114 // PCON1 = ((oldval & ~(0xf << 12)) | (1 << 12));
119 PCON1
= ((oldval
& ~(0xf << 16)) | (2 << 16));
123 PCON1
= (oldval
& ~(0xf)) | 2;
125 // enable external interrupts
129 asm volatile("msr cpsr_c, #0x13\n\t"); // enable interrupts
136 /* Calibrate the lot */
137 qt1106_io(QT1106_MODE_FREE
| QT1106_MOD_INF
| QT1106_DI \
138 | QT1106_SLD_SLIDER
| QT1106_CAL_WHEEL
| QT1106_CAL_KEYS
| QT1106_RES_256
);
141 lcd_bitmap(rockboxlogo
, 0, 30, BMPWIDTH_rockboxlogo
, BMPHEIGHT_rockboxlogo
);
144 /* Set to maximum sensitivity */
145 qt1106_io(QT1106_CT
| (0x00 << 8) );
151 int slider
= qt1106_io(QT1106_MODE_FREE
| QT1106_MOD_INF \
152 | QT1106_DI
| QT1106_SLD_SLIDER
| QT1106_RES_256
);
153 snprintf(mystring
, 64, "%x %2.2x",(slider
& 0x008000)>>15, slider
&0xff);
154 lcd_puts(0,1,mystring
);
157 if(slider & 0x008000)
158 bl_debug_count(((slider&0xff)) + 1);