1 | /*--------------------------------------------------------------------------------- |
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2 | |
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3 | default ARM7 core |
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4 | |
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5 | Copyright (C) 2005 |
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6 | Michael Noland (joat) |
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7 | Jason Rogers (dovoto) |
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8 | Dave Murphy (WinterMute) |
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9 | |
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10 | This software is provided 'as-is', without any express or implied |
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11 | warranty. In no event will the authors be held liable for any |
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12 | damages arising from the use of this software. |
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13 | |
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14 | Permission is granted to anyone to use this software for any |
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15 | purpose, including commercial applications, and to alter it and |
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16 | redistribute it freely, subject to the following restrictions: |
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17 | |
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18 | 1. The origin of this software must not be misrepresented; you |
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19 | must not claim that you wrote the original software. If you use |
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20 | this software in a product, an acknowledgment in the product |
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21 | documentation would be appreciated but is not required. |
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22 | 2. Altered source versions must be plainly marked as such, and |
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23 | must not be misrepresented as being the original software. |
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24 | 3. This notice may not be removed or altered from any source |
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25 | distribution. |
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26 | |
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27 | ---------------------------------------------------------------------------------*/ |
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28 | #include <nds.h> |
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29 | #include "../include/my_ipc.h" |
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30 | |
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31 | #ifdef ENABLE_WIFI |
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32 | #include <dswifi7.h> |
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33 | #endif |
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34 | |
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35 | //--------------------------------------------------------------------------------- |
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36 | void startSound(int sampleRate, const void* data, u32 bytes, u8 channel, u8 vol, u8 pan, u8 format) { |
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37 | //--------------------------------------------------------------------------------- |
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38 | SCHANNEL_TIMER(channel) = SOUND_FREQ(sampleRate); |
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39 | SCHANNEL_SOURCE(channel) = (u32)data; |
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40 | SCHANNEL_LENGTH(channel) = bytes >> 2 ; |
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41 | SCHANNEL_CR(channel) = SCHANNEL_ENABLE | SOUND_ONE_SHOT | SOUND_VOL(vol) | SOUND_PAN(pan) | (format==1?SOUND_8BIT:SOUND_16BIT); |
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42 | } |
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43 | |
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44 | //--------------------------------------------------------------------------------- |
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45 | s32 getFreeSoundChannel() { |
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46 | //--------------------------------------------------------------------------------- |
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47 | int i; |
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48 | for (i=0; i<16; i++) { |
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49 | if ( (SCHANNEL_CR(i) & SCHANNEL_ENABLE) == 0 ) return i; |
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50 | } |
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51 | return -1; |
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52 | } |
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53 | |
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54 | |
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55 | touchPosition first,tempPos; |
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56 | |
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57 | //--------------------------------------------------------------------------------- |
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58 | void VcountHandler() { |
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59 | //--------------------------------------------------------------------------------- |
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60 | static int lastbut = -1; |
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61 | |
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62 | uint16 but=0, x=0, y=0, xpx=0, ypx=0, z1=0, z2=0; |
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63 | |
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64 | but = REG_KEYXY; |
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65 | |
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66 | if (!( (but ^ lastbut) & (1<<6))) { |
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67 | |
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68 | tempPos = touchReadXY(); |
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69 | |
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70 | if ( tempPos.x == 0 || tempPos.y == 0 ) { |
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71 | but |= (1 <<6); |
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72 | lastbut = but; |
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73 | } else { |
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74 | x = tempPos.x; |
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75 | y = tempPos.y; |
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76 | xpx = tempPos.px; |
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77 | ypx = tempPos.py; |
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78 | z1 = tempPos.z1; |
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79 | z2 = tempPos.z2; |
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80 | } |
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81 | |
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82 | } else { |
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83 | lastbut = but; |
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84 | but |= (1 <<6); |
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85 | } |
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86 | IPC->touchX = x; |
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87 | IPC->touchY = y; |
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88 | IPC->touchXpx = xpx; |
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89 | IPC->touchYpx = ypx; |
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90 | IPC->touchZ1 = z1; |
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91 | IPC->touchZ2 = z2; |
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92 | IPC->buttons = but; |
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93 | |
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94 | } |
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95 | |
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96 | //--------------------------------------------------------------------------------- |
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97 | void VblankHandler(void) { |
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98 | //--------------------------------------------------------------------------------- |
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99 | static u8 is_recording = 0; |
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100 | u32 i; |
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101 | |
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102 | //sound code :) |
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103 | TransferSound *snd = IPC->soundData; |
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104 | IPC->soundData = 0; |
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105 | |
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106 | if (0 != snd) { |
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107 | |
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108 | for (i=0; i<snd->count; i++) { |
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109 | s32 chan = getFreeSoundChannel(); |
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110 | |
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111 | if (chan >= 0) { |
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112 | startSound(snd->data[i].rate, snd->data[i].data, snd->data[i].len, chan, snd->data[i].vol, snd->data[i].pan, snd->data[i].format); |
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113 | } |
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114 | } |
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115 | } |
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116 | |
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117 | // microphone code |
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118 | if (!is_recording && my_IPC->record) |
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119 | { |
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120 | StartRecording((u8 *)my_IPC->record_buffer, my_IPC->record_length_max); |
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121 | is_recording = 1; |
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122 | } |
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123 | |
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124 | if (is_recording && !my_IPC->record) |
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125 | { |
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126 | my_IPC->recorded_length = 1 + StopRecording(); |
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127 | is_recording = 0; |
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128 | } |
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129 | |
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130 | #ifdef ENABLE_WIFI |
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131 | Wifi_Update(); // update wireless in vblank |
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132 | #endif |
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133 | } |
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134 | |
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135 | #ifdef ENABLE_WIFI |
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136 | // callback to allow wifi library to notify arm9 |
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137 | void arm7_synctoarm9() { // send fifo message |
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138 | REG_IPC_FIFO_TX = 0x87654321; |
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139 | } |
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140 | // interrupt handler to allow incoming notifications from arm9 |
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141 | void arm7_fifo() { // check incoming fifo messages |
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142 | u32 msg = REG_IPC_FIFO_RX; |
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143 | if(msg==0x87654321) Wifi_Sync(); |
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144 | } |
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145 | #endif |
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146 | |
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147 | //--------------------------------------------------------------------------------- |
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148 | int main(int argc, char ** argv) { |
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149 | //--------------------------------------------------------------------------------- |
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150 | #ifdef ENABLE_WIFI |
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151 | REG_IPC_FIFO_CR = IPC_FIFO_ENABLE | IPC_FIFO_SEND_CLEAR; // enable & prepare |
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152 | // fifo asap |
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153 | #endif |
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154 | |
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155 | // read User Settings from firmware |
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156 | readUserSettings(); |
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157 | |
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158 | //enable sound |
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159 | powerON(POWER_SOUND); |
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160 | writePowerManagement(PM_CONTROL_REG, ( readPowerManagement(PM_CONTROL_REG) & ~PM_SOUND_MUTE ) | PM_SOUND_AMP ); |
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161 | SOUND_CR = SOUND_ENABLE | SOUND_VOL(0x7F); |
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162 | |
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163 | irqInit(); |
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164 | |
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165 | // Start the RTC tracking IRQ |
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166 | initClockIRQ(); |
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167 | |
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168 | SetYtrigger(80); |
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169 | irqSet(IRQ_VCOUNT, VcountHandler); |
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170 | irqSet(IRQ_VBLANK, VblankHandler); |
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171 | irqSet(IRQ_TIMER0, ProcessMicrophoneTimerIRQ); |
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172 | |
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173 | irqEnable(IRQ_VBLANK | IRQ_VCOUNT | IRQ_TIMER0); |
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174 | |
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175 | #ifdef ENABLE_WIFI |
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176 | irqSet(IRQ_WIFI, Wifi_Interrupt); // set up wifi interrupt |
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177 | irqEnable(IRQ_WIFI); |
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178 | |
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179 | // sync with arm9 and init wifi |
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180 | u32 fifo_temp; |
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181 | |
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182 | while (1) |
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183 | { // wait for magic number |
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184 | while (REG_IPC_FIFO_CR & IPC_FIFO_RECV_EMPTY) |
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185 | swiWaitForVBlank(); |
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186 | fifo_temp = REG_IPC_FIFO_RX; |
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187 | if (fifo_temp == 0x12345678) |
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188 | break; |
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189 | } |
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190 | while (REG_IPC_FIFO_CR & IPC_FIFO_RECV_EMPTY) |
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191 | swiWaitForVBlank(); |
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192 | fifo_temp = REG_IPC_FIFO_RX; |
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193 | Wifi_Init(fifo_temp); |
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194 | |
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195 | irqSet(IRQ_FIFO_NOT_EMPTY,arm7_fifo); // set up fifo irq |
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196 | irqEnable(IRQ_FIFO_NOT_EMPTY); |
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197 | REG_IPC_FIFO_CR = IPC_FIFO_ENABLE | IPC_FIFO_RECV_IRQ; |
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198 | |
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199 | Wifi_SetSyncHandler(arm7_synctoarm9); // allow wifi lib to notify arm9 |
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200 | #endif |
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201 | // Keep the ARM7 mostly idle |
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202 | while (1) { |
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203 | swiWaitForVBlank(); |
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204 | } |
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205 | } |
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206 | |
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207 | |
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