1 /*---------------------------------------------------------------------------*
2 Project: TwlSDK - WVR - demos - with_mb
3 File: common.c
4
5 Copyright 2003-2008 Nintendo. All rights reserved.
6
7 These coded instructions, statements, and computer programs contain
8 proprietary information of Nintendo of America Inc. and/or Nintendo
9 Company Ltd., and are protected by Federal copyright law. They may
10 not be disclosed to third parties or copied or duplicated in any form,
11 in whole or in part, without the prior written consent of Nintendo.
12
13 $Date:: 2008-09-17#$
14 $Rev: 8556 $
15 $Author: okubata_ryoma $
16 *---------------------------------------------------------------------------*/
17
18 #include <nitro.h>
19
20 #include "common.h"
21 #include "disp.h"
22
23
24 static void VBlankIntr(void);
25
26 /*
27 * Common features used by this entire demo
28 */
29 static u16 padPress;
30 static u16 padTrig;
31
32 /*---------------------------------------------------------------------------*
33 Name: ReadKey
34
35 Description: Processing for reading keys.
36
37 Arguments: None.
38
39 Returns: None.
40 *---------------------------------------------------------------------------*/
ReadKey(void)41 void ReadKey(void)
42 {
43 u16 currData = PAD_Read();
44
45 padTrig = (u16)(~padPress & currData);
46 padPress = currData;
47 }
48
49 /*---------------------------------------------------------------------------*
50 Name: GetPressKey
51
52 Description: Gets pressed key.
53
54 Arguments: None.
55
56 Returns: Bitmap of the pressed key.
57 *---------------------------------------------------------------------------*/
GetPressKey(void)58 u16 GetPressKey(void)
59 {
60 return padPress;
61 }
62
63
64 /*---------------------------------------------------------------------------*
65 Name: GetTrigKey
66
67 Description: Gets key trigger.
68
69 Arguments: None.
70
71 Returns: A bitmap of key triggers.
72 *---------------------------------------------------------------------------*/
GetTrigKey(void)73 u16 GetTrigKey(void)
74 {
75 return padTrig;
76 }
77
78
79 /*---------------------------------------------------------------------------*
80 Name: CommonInit
81
82 Description: Common initialization functions.
83
84 Arguments: None.
85
86 Returns: None.
87 *---------------------------------------------------------------------------*/
CommonInit(void)88 void CommonInit(void)
89 {
90 /* OS initialization */
91 OS_Init();
92 OS_InitTick();
93 OS_InitAlarm();
94 FX_Init();
95
96 /* GX initialization */
97 GX_Init();
98 GX_DispOff();
99 GXS_DispOff();
100
101 /* V-Blank interrupt configuration */
102 (void)OS_SetIrqFunction(OS_IE_V_BLANK, VBlankIntr);
103 (void)OS_EnableIrqMask(OS_IE_V_BLANK);
104 (void)OS_EnableIrqMask(OS_IE_FIFO_RECV);
105 (void)GX_VBlankIntr(TRUE);
106
107 { /* FS initialization */
108 static u32 fs_tablework[0x100 / 4];
109 FS_Init(FS_DMA_NOT_USE);
110 (void)FS_LoadTable(fs_tablework, sizeof(fs_tablework));
111 }
112
113 // Read the key once as empty
114 ReadKey();
115 }
116
117
118 /*---------------------------------------------------------------------------*
119 Name: InitAllocateSystem
120
121 Description: Initializes the memory allocation system within the main memory arena.
122
123 Arguments: None.
124
125 Returns: None.
126 *---------------------------------------------------------------------------*/
InitAllocateSystem(void)127 void InitAllocateSystem(void)
128 {
129 void *tempLo;
130 OSHeapHandle hh;
131
132 // Based on the premise that OS_Init has been already called
133 tempLo = OS_InitAlloc(OS_ARENA_MAIN, OS_GetMainArenaLo(), OS_GetMainArenaHi(), 1);
134 OS_SetArenaLo(OS_ARENA_MAIN, tempLo);
135 hh = OS_CreateHeap(OS_ARENA_MAIN, OS_GetMainArenaLo(), OS_GetMainArenaHi());
136 if (hh < 0)
137 {
138 OS_Panic("ARM9: Fail to create heap...\n");
139 }
140 hh = OS_SetCurrentHeap(OS_ARENA_MAIN, hh);
141 }
142
143
144
145
146 /*---------------------------------------------------------------------------*
147 Name: VBlankIntr
148
149 Description: Gets key trigger.
150
151 Arguments: None.
152
153 Returns: None.
154 *---------------------------------------------------------------------------*/
VBlankIntr(void)155 static void VBlankIntr(void)
156 {
157 DispVBlankFunc();
158
159 //---- Interrupt check flag
160 OS_SetIrqCheckFlag(OS_IE_V_BLANK);
161 }
162