source: rtems/c/src/lib/libbsp/arm/nds/libnds/source/arm9/keys.c @ 32b8506

4.104.115
Last change on this file since 32b8506 was 32b8506, checked in by Ralf Corsepius <ralf.corsepius@…>, on 11/29/09 at 14:53:02

Whitespace removal.
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File size: 12.3 KB
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1/*------------------------------------------------------------------------------
2        $Id$
3
4        key input code -- provides slightly higher level input forming
5
6        Copyright (C) 2005
7                        Christian Auby (DesktopMan)
8                        Dave Murphy (WinterMute)
9
10        This software is provided 'as-is', without any express or implied
11        warranty.  In no event will the authors be held liable for any
12        damages arising from the use of this software.
13
14        Permission is granted to anyone to use this software for any
15        purpose, including commercial applications, and to alter it and
16        redistribute it freely, subject to the following restrictions:
17
18        1.      The origin of this software must not be misrepresented; you
19                must not claim that you wrote the original software. If you use
20                this software in a product, an acknowledgment in the product
21                documentation would be appreciated but is not required.
22        2.      Altered source versions must be plainly marked as such, and
23                must not be misrepresented as being the original software.
24        3.      This notice may not be removed or altered from any source
25                distribution.
26
27        $Log$
28        Revision 1.1  2008/04/16 18:37:32  joel
29        2008-04-16      Matthieu Bucchianeri <mbucchia@gmail.com>
30
31                * ChangeLog, Makefile.am, README, bsp_specs, configure.ac,
32                mk_libnds.sh, patch.libnds, preinstall.am, block/block.c,
33                clock/clock.c, console/console.c, coproc/coproc.S, coproc/coproc.c,
34                coproc/coproc.ld, dswifi/dswifi_license.txt, dswifi/makefile,
35                dswifi/arm7/makefile, dswifi/arm7/source/wifi_arm7.c,
36                dswifi/arm7/source/wifi_arm7.h, dswifi/arm9/makefile,
37                dswifi/arm9/source/sgIP.c, dswifi/arm9/source/sgIP.h,
38                dswifi/arm9/source/sgIP_ARP.c, dswifi/arm9/source/sgIP_ARP.h,
39                dswifi/arm9/source/sgIP_Config.h, dswifi/arm9/source/sgIP_DHCP.c,
40                dswifi/arm9/source/sgIP_DHCP.h, dswifi/arm9/source/sgIP_DNS.c,
41                dswifi/arm9/source/sgIP_DNS.h, dswifi/arm9/source/sgIP_Hub.c,
42                dswifi/arm9/source/sgIP_Hub.h, dswifi/arm9/source/sgIP_ICMP.c,
43                dswifi/arm9/source/sgIP_ICMP.h, dswifi/arm9/source/sgIP_IP.c,
44                dswifi/arm9/source/sgIP_IP.h, dswifi/arm9/source/sgIP_TCP.c,
45                dswifi/arm9/source/sgIP_TCP.h, dswifi/arm9/source/sgIP_UDP.c,
46                dswifi/arm9/source/sgIP_UDP.h, dswifi/arm9/source/sgIP_memblock.c,
47                dswifi/arm9/source/sgIP_memblock.h,
48                dswifi/arm9/source/sgIP_sockets.c, dswifi/arm9/source/sgIP_sockets.h,
49                dswifi/arm9/source/wifi_arm9.c, dswifi/arm9/source/wifi_arm9.h,
50                dswifi/common/source/dsregs.h, dswifi/common/source/spinlock.h,
51                dswifi/common/source/spinlock.s, dswifi/common/source/wifi_shared.h,
52                dswifi/include/dswifi7.h, dswifi/include/dswifi9.h,
53                dswifi/include/dswifi_version.h, dswifi/include/netdb.h,
54                dswifi/include/sgIP_errno.h, dswifi/include/netinet/in.h, fb/fb.c,
55                fb/fb.h, include/bsp.h, include/my_ipc.h, include/tm27.h,
56                include/types.h, include/sys/iosupport.h, irq/irq.c, irq/irq.h,
57                libfat/gba/include/fat.h, libfat/include/fat.h,
58                libfat/nds/include/fat.h, libfat/source/bit_ops.h,
59                libfat/source/cache.c, libfat/source/cache.h, libfat/source/common.h,
60                libfat/source/directory.c, libfat/source/directory.h,
61                libfat/source/fatdir.c, libfat/source/fatdir.h,
62                libfat/source/fatfile.c, libfat/source/fatfile.h,
63                libfat/source/file_allocation_table.c,
64                libfat/source/file_allocation_table.h, libfat/source/filetime.c,
65                libfat/source/filetime.h, libfat/source/libfat.c,
66                libfat/source/mem_allocate.h, libfat/source/partition.c,
67                libfat/source/partition.h, libfat/source/disc_io/disc.c,
68                libfat/source/disc_io/disc.h, libfat/source/disc_io/disc_io.h,
69                libfat/source/disc_io/io_cf_common.c,
70                libfat/source/disc_io/io_cf_common.h,
71                libfat/source/disc_io/io_dldi.h, libfat/source/disc_io/io_dldi.s,
72                libfat/source/disc_io/io_efa2.c, libfat/source/disc_io/io_efa2.h,
73                libfat/source/disc_io/io_fcsr.c, libfat/source/disc_io/io_fcsr.h,
74                libfat/source/disc_io/io_m3_common.c,
75                libfat/source/disc_io/io_m3_common.h,
76                libfat/source/disc_io/io_m3cf.c, libfat/source/disc_io/io_m3cf.h,
77                libfat/source/disc_io/io_m3sd.c, libfat/source/disc_io/io_m3sd.h,
78                libfat/source/disc_io/io_mpcf.c, libfat/source/disc_io/io_mpcf.h,
79                libfat/source/disc_io/io_njsd.c, libfat/source/disc_io/io_njsd.h,
80                libfat/source/disc_io/io_nmmc.c, libfat/source/disc_io/io_nmmc.h,
81                libfat/source/disc_io/io_sc_common.c,
82                libfat/source/disc_io/io_sc_common.h,
83                libfat/source/disc_io/io_sccf.c, libfat/source/disc_io/io_sccf.h,
84                libfat/source/disc_io/io_scsd.c, libfat/source/disc_io/io_scsd.h,
85                libfat/source/disc_io/io_scsd_s.s,
86                libfat/source/disc_io/io_sd_common.c,
87                libfat/source/disc_io/io_sd_common.h, libnds/Makefile.arm7,
88                libnds/Makefile.arm9, libnds/libnds_license.txt,
89                libnds/basicARM7/source/defaultARM7.c,
90                libnds/include/default_font_bin.h, libnds/include/gbfs.h,
91                libnds/include/nds.h, libnds/include/nds/bios.h,
92                libnds/include/nds/card.h, libnds/include/nds/dma.h,
93                libnds/include/nds/interrupts.h, libnds/include/nds/ipc.h,
94                libnds/include/nds/jtypes.h, libnds/include/nds/memory.h,
95                libnds/include/nds/registers_alt.h, libnds/include/nds/reload.h,
96                libnds/include/nds/system.h, libnds/include/nds/timers.h,
97                libnds/include/nds/arm7/audio.h, libnds/include/nds/arm7/clock.h,
98                libnds/include/nds/arm7/serial.h, libnds/include/nds/arm7/touch.h,
99                libnds/include/nds/arm9/background.h,
100                libnds/include/nds/arm9/boxtest.h, libnds/include/nds/arm9/cache.h,
101                libnds/include/nds/arm9/console.h,
102                libnds/include/nds/arm9/exceptions.h,
103                libnds/include/nds/arm9/image.h, libnds/include/nds/arm9/input.h,
104                libnds/include/nds/arm9/math.h, libnds/include/nds/arm9/ndsmotion.h,
105                libnds/include/nds/arm9/pcx.h, libnds/include/nds/arm9/postest.h,
106                libnds/include/nds/arm9/rumble.h, libnds/include/nds/arm9/sound.h,
107                libnds/include/nds/arm9/sprite.h, libnds/include/nds/arm9/trig_lut.h,
108                libnds/include/nds/arm9/video.h, libnds/include/nds/arm9/videoGL.h,
109                libnds/source/arm7/audio.c, libnds/source/arm7/clock.c,
110                libnds/source/arm7/microphone.c, libnds/source/arm7/spi.c,
111                libnds/source/arm7/touch.c, libnds/source/arm7/userSettings.c,
112                libnds/source/arm9/COS.bin, libnds/source/arm9/COS.s,
113                libnds/source/arm9/SIN.bin, libnds/source/arm9/SIN.s,
114                libnds/source/arm9/TAN.bin, libnds/source/arm9/TAN.s,
115                libnds/source/arm9/boxtest.c, libnds/source/arm9/console.c,
116                libnds/source/arm9/dcache.s, libnds/source/arm9/default_font.bin,
117                libnds/source/arm9/default_font.s,
118                libnds/source/arm9/exceptionHandler.S,
119                libnds/source/arm9/exceptionHandler.s,
120                libnds/source/arm9/exceptions.c, libnds/source/arm9/gurumeditation.c,
121                libnds/source/arm9/icache.s, libnds/source/arm9/image.c,
122                libnds/source/arm9/initSystem.c, libnds/source/arm9/keys.c,
123                libnds/source/arm9/ndsmotion.c, libnds/source/arm9/pcx.c,
124                libnds/source/arm9/rumble.c, libnds/source/arm9/sound.c,
125                libnds/source/arm9/system.c, libnds/source/arm9/touch.c,
126                libnds/source/arm9/video.c, libnds/source/arm9/videoGL.c,
127                libnds/source/common/biosCalls.s, libnds/source/common/card.c,
128                libnds/source/common/gbfs.c,
129                libnds/source/common/interruptDispatcher.s,
130                libnds/source/common/interrupts.c, rtc/rtc.c, sound/sound.c,
131                sound/sound.h, start/start.S, startup/linkcmds, startup/start.c,
132                timer/timer.c, tools/Makefile.am, tools/bin2s, tools/bin2s.c,
133                tools/configure.ac, tools/runtest,
134                tools/ndstool/include/arm7_sha1_homebrew.h,
135                tools/ndstool/include/arm7_sha1_nintendo.h,
136                tools/ndstool/include/banner.h, tools/ndstool/include/bigint.h,
137                tools/ndstool/include/crc.h, tools/ndstool/include/default_icon.h,
138                tools/ndstool/include/encryption.h, tools/ndstool/include/header.h,
139                tools/ndstool/include/hook.h, tools/ndstool/include/little.h,
140                tools/ndstool/include/loadme.h, tools/ndstool/include/logo.h,
141                tools/ndstool/include/ndscreate.h,
142                tools/ndstool/include/ndsextract.h, tools/ndstool/include/ndstool.h,
143                tools/ndstool/include/ndstree.h, tools/ndstool/include/overlay.h,
144                tools/ndstool/include/passme.h, tools/ndstool/include/passme_sram.h,
145                tools/ndstool/include/passme_vhd1.h,
146                tools/ndstool/include/passme_vhd2.h, tools/ndstool/include/raster.h,
147                tools/ndstool/include/sha1.h, tools/ndstool/include/types.h,
148                tools/ndstool/source/arm7_sha1_homebrew.c,
149                tools/ndstool/source/arm7_sha1_nintendo.c,
150                tools/ndstool/source/banner.cpp, tools/ndstool/source/bigint.cpp,
151                tools/ndstool/source/compile_date.c, tools/ndstool/source/crc.cpp,
152                tools/ndstool/source/default_icon.c,
153                tools/ndstool/source/encryption.cpp, tools/ndstool/source/header.cpp,
154                tools/ndstool/source/hook.cpp, tools/ndstool/source/loadme.c,
155                tools/ndstool/source/logo.cpp, tools/ndstool/source/ndscodes.cpp,
156                tools/ndstool/source/ndscreate.cpp,
157                tools/ndstool/source/ndsextract.cpp,
158                tools/ndstool/source/ndstool.cpp, tools/ndstool/source/ndstree.cpp,
159                tools/ndstool/source/passme.cpp, tools/ndstool/source/passme_sram.c,
160                tools/ndstool/source/raster.cpp, tools/ndstool/source/sha1.cpp,
161                touchscreen/README.reco, touchscreen/parser.c, touchscreen/reco.c,
162                touchscreen/reco.h, touchscreen/touchscreen.c,
163                touchscreen/touchscreen.h, wifi/compat.c, wifi/compat.h, wifi/wifi.c:
164                New files.
165
166        Revision 1.15  2006/07/04 01:45:31  wntrmute
167        remove unused variables
168
169        Revision 1.14  2006/07/02 17:36:51  wntrmute
170        remove unnecessary IPC reads
171
172        Revision 1.13  2006/01/12 09:10:47  wntrmute
173        Added key repeat as suggested by pepsiman
174
175        Revision 1.12  2005/11/27 12:30:25  wntrmute
176        reverted to correct hardware REGisters
177
178        Revision 1.11  2005/11/27 07:48:45  joatski
179        Renamed REG_KEYINPUT and REG_KEYCNT back to KEYS and KEYS_CR, as the alternatives are defined in registers_alt.h.
180        Changed function returns to uint32
181
182        Revision 1.10  2005/11/03 23:38:49  wntrmute
183        don't use enum for key function returns
184
185        Revision 1.9  2005/10/13 16:30:11  dovoto
186        Changed KEYPAD_BITS to a typedef enum, this resolved some issues with multiple redefinition of KEYPAD_BITS (although this error did not allways occur).
187
188        Revision 1.8  2005/10/03 21:21:59  wntrmute
189        use enum types
190
191        Revision 1.7  2005/09/07 18:06:27  wntrmute
192        use new register names
193
194        Revision 1.6  2005/08/23 17:06:10  wntrmute
195        converted all endings to unix
196
197        Revision 1.5  2005/08/03 18:07:55  wntrmute
198        don't use nds.h
199
200        Revision 1.4  2005/07/25 02:31:07  wntrmute
201        made local variables static
202        added proper header to keys.h
203
204        Revision 1.3  2005/07/25 02:19:01  desktopman
205        Added support for KEY_LID in keys.c.
206        Moved KEYS_CUR from header to source file.
207        Changed from the custom abs() to stdlib.h's abs().
208
209        Revision 1.2  2005/07/14 08:00:57  wntrmute
210        resynchronise with ndslib
211
212
213------------------------------------------------------------------------------*/
214
215#include <stdlib.h>
216
217#include <nds/ipc.h>
218#include <nds/system.h>
219#include <nds/arm9/input.h>
220
221//------------------------------------------------------------------------------
222
223#define KEYS_CUR (( ((~REG_KEYINPUT)&0x3ff) | (((~IPC->buttons)&3)<<10) | (((~IPC->buttons)<<6) & (KEY_TOUCH|KEY_LID) ))^KEY_LID)
224
225static uint16 keys = 0;
226static uint16 keysold = 0;
227static uint16 keysrepeat = 0;
228
229static u8 delay = 60, repeat = 30, count = 60;
230
231//------------------------------------------------------------------------------
232void scanKeys(void) {
233//------------------------------------------------------------------------------
234        keysold = keys;
235        keys = KEYS_CUR;
236
237    if ( delay != 0 ) {
238        if ( keys != keysold ) {
239            count = delay ;
240            keysrepeat = keysDown() ;
241        }
242        count--;
243        if ( count == 0 ) {
244            count = repeat;
245            keysrepeat = keys;
246        }
247    }
248}
249
250//------------------------------------------------------------------------------
251uint32 keysHeld(void) {
252//------------------------------------------------------------------------------
253        return keys;
254}
255
256//------------------------------------------------------------------------------
257uint32 keysDown(void) {
258//------------------------------------------------------------------------------
259        return (keys ^ keysold) & keys;
260}
261
262//------------------------------------------------------------------------------
263uint32 keysDownRepeat(void) {
264//------------------------------------------------------------------------------
265        uint32 tmp = keysrepeat;
266
267    keysrepeat = 0;
268
269    return tmp;
270}
271
272//------------------------------------------------------------------------------
273void keysSetRepeat( u8 setDelay, u8 setRepeat ) {
274//------------------------------------------------------------------------------
275    delay = setDelay ;
276    repeat = setRepeat ;
277    count = delay ;
278    keysrepeat = 0 ;
279}
280
281//------------------------------------------------------------------------------
282uint32 keysUp(void) {
283//------------------------------------------------------------------------------
284        return (keys ^ keysold) & (~keys);
285}
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