Justin S / Mbed 2 deprecated N64_Output_XPAD

v1 Stable

Dependencies:   F401RE-USBHost USBHostXpad mbed

main.cpp@6:21365f733399, 2016-12-26 (annotated)

Committer:
Ownasaurus
Date:
Mon Dec 26 01:23:55 2016 +0000
Revision:
6:21365f733399
Parent:
5:32c8b316582a
Child:
7:65d1a7a3948b
Redid analog code, allow remapping controls on the fly

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Ownasaurus 0:eb2258e8c4b5 1 #include "mbed.h"
Ownasaurus 2:c20d8438f206 2 #include "USBHostXpad.h"
Ownasaurus 3:52b2a7514406 3 #include "stm32f4xx_flash.h"
Ownasaurus 2:c20d8438f206 4
Ownasaurus 2:c20d8438f206 5 DigitalOut myled(LED1);
Ownasaurus 2:c20d8438f206 6 Serial pc(USBTX, USBRX); // tx, rx
Ownasaurus 2:c20d8438f206 7 DigitalInOut data(PA_8);
Ownasaurus 5:32c8b316582a 8 DigitalIn button(PC_13); // eventually code to set controls
Ownasaurus 2:c20d8438f206 9
Ownasaurus 2:c20d8438f206 10 /**
Ownasaurus 2:c20d8438f206 11 @namespace AXYB
Ownasaurus 2:c20d8438f206 12 @brief Integer for storing the hex of the A X Y B buttons
Ownasaurus 2:c20d8438f206 13 @brief XPad returns a 4 digit hex for all buttons- AXYB buttons are stored in first value
Ownasaurus 2:c20d8438f206 14 @param A - given as a 1
Ownasaurus 2:c20d8438f206 15 @param B - given as a 2
Ownasaurus 2:c20d8438f206 16 @param X - given as a 4
Ownasaurus 2:c20d8438f206 17 @param Y - given as a 8
Ownasaurus 2:c20d8438f206 18 */
Ownasaurus 2:c20d8438f206 19 uint8_t AXYB=0x0;
Ownasaurus 2:c20d8438f206 20 /**
Ownasaurus 2:c20d8438f206 21 @namespace XLBRB
Ownasaurus 2:c20d8438f206 22 @brief Integer for storing the hex of the LB,RB and center X buttons
Ownasaurus 3:52b2a7514406 23 @brief XPad returns a 4 digit hex for all buttons- XLBRB buttons are stored in second value
Ownasaurus 2:c20d8438f206 24 @param LB - given as a 1
Ownasaurus 2:c20d8438f206 25 @param R - given as a 2
Ownasaurus 2:c20d8438f206 26 @param X - given as a 4
Ownasaurus 2:c20d8438f206 27 */
Ownasaurus 2:c20d8438f206 28 uint8_t XLBRB=0x0;
Ownasaurus 2:c20d8438f206 29
Ownasaurus 2:c20d8438f206 30 /**
Ownasaurus 2:c20d8438f206 31 @namespace bkStrtLCRC
Ownasaurus 2:c20d8438f206 32 @brief Integer for storing the hex of the Left analog button,Right analog button,back and start buttons
Ownasaurus 3:52b2a7514406 33 @brief XPad returns a 4 digit hex for all buttons- bkStrtLCRC buttons are stored in third value
Ownasaurus 2:c20d8438f206 34 @param start - given as a 1
Ownasaurus 2:c20d8438f206 35 @param back - given as a 2
Ownasaurus 2:c20d8438f206 36 @param LC - given as a 4
Ownasaurus 2:c20d8438f206 37 @param RC - given as a 8
Ownasaurus 2:c20d8438f206 38 */
Ownasaurus 2:c20d8438f206 39 uint8_t bkStrtLCRC=0x0;
Ownasaurus 2:c20d8438f206 40 /**
Ownasaurus 2:c20d8438f206 41 @namespace DPad
Ownasaurus 2:c20d8438f206 42 @brief Integer for storing the hex of the Directional buttons
Ownasaurus 3:52b2a7514406 43 @brief XPad returns a 4 digit hex for all buttons- DPad buttons are stored in fourth value
Ownasaurus 2:c20d8438f206 44 @param Up - given as a 1
Ownasaurus 2:c20d8438f206 45 @param Down - given as a 2
Ownasaurus 2:c20d8438f206 46 @param Left - given as a 4
Ownasaurus 2:c20d8438f206 47 @param Right - given as a 8
Ownasaurus 2:c20d8438f206 48 */
Ownasaurus 2:c20d8438f206 49 uint8_t DPad=0x0;
Ownasaurus 2:c20d8438f206 50 /**
Ownasaurus 2:c20d8438f206 51 @namespace LSY
Ownasaurus 2:c20d8438f206 52 @brief float for storing the value of the Left Analogue Stick's Y axis
Ownasaurus 2:c20d8438f206 53 @brief XPad returns a value between -32768(down) and 32767(up)
Ownasaurus 2:c20d8438f206 54 @there is a deadzone between around -4000 and 4000 where the value returned is not consistent when in the fixed position(assummed 0,0 point)
Ownasaurus 2:c20d8438f206 55 */
Ownasaurus 2:c20d8438f206 56 char LSY=0x0;
Ownasaurus 2:c20d8438f206 57 /**
Ownasaurus 2:c20d8438f206 58 @namespace LSX
Ownasaurus 2:c20d8438f206 59 @brief float for storing the value of the Left Analogue Stick's X axis
Ownasaurus 2:c20d8438f206 60 @brief XPad returns a value between -32768(left) and 32767(right)
Ownasaurus 2:c20d8438f206 61 @there is a deadzone between around -4000 and 4000 where the value returned is not consistent when in the fixed position(assummed 0,0 point)
Ownasaurus 2:c20d8438f206 62 */
Ownasaurus 2:c20d8438f206 63 char LSX=0x0;
Ownasaurus 2:c20d8438f206 64 /**
Ownasaurus 2:c20d8438f206 65 @namespace RSY
Ownasaurus 2:c20d8438f206 66 @brief float for storing the value of the Right Analogue Stick's Y axis
Ownasaurus 2:c20d8438f206 67 @brief XPad returns a value between -32768() and 32767(up)
Ownasaurus 2:c20d8438f206 68 @there is a deadzone between around -4000 and 4000 where the value returned is not consistent when in the fixed position(assummed 0,0 point)
Ownasaurus 2:c20d8438f206 69 */
Ownasaurus 2:c20d8438f206 70 float RSY=0x0;
Ownasaurus 2:c20d8438f206 71 /**
Ownasaurus 2:c20d8438f206 72 @namespace RSX
Ownasaurus 2:c20d8438f206 73 @brief float for storing the value of the Right Analogue Stick's X axis
Ownasaurus 2:c20d8438f206 74 @brief XPad returns a value between -32768(left) and 32767(right)
Ownasaurus 2:c20d8438f206 75 @there is a deadzone between around -4000 and 4000 where the value returned is not consistent when in the fixed position(assummed 0,0 point)
Ownasaurus 2:c20d8438f206 76 */
Ownasaurus 2:c20d8438f206 77 float RSX=0x0;
Ownasaurus 2:c20d8438f206 78 /**
Ownasaurus 2:c20d8438f206 79 @namespace sN
Ownasaurus 2:c20d8438f206 80 @brief float for storing the stick Normalising value
Ownasaurus 2:c20d8438f206 81 @brief makes the range of the sticks -80 to 80
Ownasaurus 2:c20d8438f206 82 */
Ownasaurus 2:c20d8438f206 83 const float sN=0.00244140625;//(80/32768)
Ownasaurus 2:c20d8438f206 84 /**
Ownasaurus 2:c20d8438f206 85 @namespace Lt
Ownasaurus 2:c20d8438f206 86 @brief float for storing the value of the Left trigger
Ownasaurus 2:c20d8438f206 87 @brief XPad returns a value between 0(not pressed) and 255(fully pressed)
Ownasaurus 2:c20d8438f206 88 @
Ownasaurus 2:c20d8438f206 89 */
Ownasaurus 2:c20d8438f206 90 float Lt=0x0;
Ownasaurus 2:c20d8438f206 91 /**
Ownasaurus 2:c20d8438f206 92 @namespace Rt
Ownasaurus 2:c20d8438f206 93 @brief float for storing the value of the Left trigger
Ownasaurus 2:c20d8438f206 94 @brief XPad returns a value between 0(not pressed) and 255(fully pressed)
Ownasaurus 2:c20d8438f206 95 @
Ownasaurus 2:c20d8438f206 96 */
Ownasaurus 2:c20d8438f206 97 float Rt=0x0;
Ownasaurus 2:c20d8438f206 98 /**
Ownasaurus 2:c20d8438f206 99 @namespace tN
Ownasaurus 2:c20d8438f206 100 @brief float for storing the trigger Normalising value
Ownasaurus 2:c20d8438f206 101 @brief makes the range of the triggers 0 to 10
Ownasaurus 2:c20d8438f206 102 */
Ownasaurus 2:c20d8438f206 103 const float tN=0.03921568627;//(10/255)
Ownasaurus 6:21365f733399 104 const int dead_zone = 20;
Ownasaurus 6:21365f733399 105 const int joy_range = 100;
Ownasaurus 6:21365f733399 106 //const int DEADZONE = 5;
Ownasaurus 6:21365f733399 107 const int TRIGGER_THRESHOLD = 5;
Ownasaurus 2:c20d8438f206 108
Ownasaurus 2:c20d8438f206 109 char reverse(char b)
Ownasaurus 2:c20d8438f206 110 {
Ownasaurus 2:c20d8438f206 111 b = (b & 0xF0) >> 4 | (b & 0x0F) << 4;
Ownasaurus 2:c20d8438f206 112 b = (b & 0xCC) >> 2 | (b & 0x33) << 2;
Ownasaurus 2:c20d8438f206 113 b = (b & 0xAA) >> 1 | (b & 0x55) << 1;
Ownasaurus 2:c20d8438f206 114 return b;
Ownasaurus 2:c20d8438f206 115 }
Ownasaurus 0:eb2258e8c4b5 116
Ownasaurus 6:21365f733399 117 enum STATE {NORMAL=0, DPAD_UP, DPAD_DOWN, DPAD_LEFT, DPAD_RIGHT, BUTTON_START, BUTTON_B, BUTTON_A, C_UP, C_DOWN, C_LEFT, C_RIGHT, BUTTON_L, BUTTON_R, BUTTON_Z};
Ownasaurus 6:21365f733399 118 enum XPAD_BUTTON {XPAD_DUP, XPAD_DDOWN, XPAD_DLEFT, XPAD_DRIGHT, XPAD_X, XPAD_Y, XPAD_A, XPAD_B, XPAD_LB, XPAD_RB, XPAD_LT, XPAD_RT, XPAD_BACK, XPAD_START, XPAD_LAB, XPAD_RAB};
Ownasaurus 6:21365f733399 119
Ownasaurus 6:21365f733399 120 uint8_t state = NORMAL;
Ownasaurus 6:21365f733399 121 bool XpadButtonPressed = false;
Ownasaurus 6:21365f733399 122
Ownasaurus 6:21365f733399 123 const uint64_t A_MASK = 0x00001000,
Ownasaurus 6:21365f733399 124 B_MASK = 0x00002000,
Ownasaurus 6:21365f733399 125 X_MASK = 0x00004000,
Ownasaurus 6:21365f733399 126 Y_MASK = 0x00008000,
Ownasaurus 6:21365f733399 127 LB_MASK = 0x00000100,
Ownasaurus 6:21365f733399 128 RB_MASK = 0x00000200,
Ownasaurus 6:21365f733399 129 START_MASK = 0x00000010,
Ownasaurus 6:21365f733399 130 BACK_MASK = 0x00000020,
Ownasaurus 6:21365f733399 131 LAB_MASK = 0x00000040,
Ownasaurus 6:21365f733399 132 RAB_MASK = 0x00000080,
Ownasaurus 6:21365f733399 133 DUP_MASK = 0x00000001,
Ownasaurus 6:21365f733399 134 DDOWN_MASK = 0x00000002,
Ownasaurus 6:21365f733399 135 DLEFT_MASK = 0x00000004,
Ownasaurus 6:21365f733399 136 DRIGHT_MASK = 0x00000008,
Ownasaurus 6:21365f733399 137 // the next two masks are special extensions to support triggers
Ownasaurus 6:21365f733399 138 LT_MASK = 0x00010000,
Ownasaurus 6:21365f733399 139 RT_MASK = 0x00020000;
Ownasaurus 6:21365f733399 140
Ownasaurus 0:eb2258e8c4b5 141 extern "C" void my_wait_us_asm (int n);
Ownasaurus 6:21365f733399 142 void LoadControls();
Ownasaurus 6:21365f733399 143 void SaveControls();
Ownasaurus 0:eb2258e8c4b5 144
Ownasaurus 5:32c8b316582a 145 struct __attribute__((packed)) N64ControllerData // all bits are in the correct order... except for the analog
Ownasaurus 1:3c21da72660d 146 {
Ownasaurus 1:3c21da72660d 147 unsigned int a : 1; // 1 bit wide
Ownasaurus 1:3c21da72660d 148 unsigned int b : 1;
Ownasaurus 1:3c21da72660d 149 unsigned int z : 1;
Ownasaurus 1:3c21da72660d 150 unsigned int start : 1;
Ownasaurus 1:3c21da72660d 151 unsigned int up : 1;
Ownasaurus 1:3c21da72660d 152 unsigned int down : 1;
Ownasaurus 1:3c21da72660d 153 unsigned int left : 1;
Ownasaurus 1:3c21da72660d 154 unsigned int right : 1;
Ownasaurus 1:3c21da72660d 155
Ownasaurus 1:3c21da72660d 156 unsigned int dummy1 : 1;
Ownasaurus 1:3c21da72660d 157 unsigned int dummy2 : 1;
Ownasaurus 6:21365f733399 158 unsigned int l : 1;
Ownasaurus 1:3c21da72660d 159 unsigned int r : 1;
Ownasaurus 1:3c21da72660d 160 unsigned int c_up : 1;
Ownasaurus 1:3c21da72660d 161 unsigned int c_down : 1;
Ownasaurus 1:3c21da72660d 162 unsigned int c_left : 1;
Ownasaurus 1:3c21da72660d 163 unsigned int c_right : 1;
Ownasaurus 1:3c21da72660d 164
Ownasaurus 1:3c21da72660d 165 char x_axis;
Ownasaurus 1:3c21da72660d 166
Ownasaurus 1:3c21da72660d 167 char y_axis;
Ownasaurus 1:3c21da72660d 168
Ownasaurus 1:3c21da72660d 169 } n64_data;
Ownasaurus 1:3c21da72660d 170
Ownasaurus 6:21365f733399 171 struct __attribute__((packed)) XpadControls
Ownasaurus 6:21365f733399 172 {
Ownasaurus 6:21365f733399 173 uint64_t a;
Ownasaurus 6:21365f733399 174 uint64_t b;
Ownasaurus 6:21365f733399 175 uint64_t z;
Ownasaurus 6:21365f733399 176 uint64_t start;
Ownasaurus 6:21365f733399 177 uint64_t up;
Ownasaurus 6:21365f733399 178 uint64_t down;
Ownasaurus 6:21365f733399 179 uint64_t left;
Ownasaurus 6:21365f733399 180 uint64_t right;
Ownasaurus 6:21365f733399 181 uint64_t l;
Ownasaurus 6:21365f733399 182 uint64_t r;
Ownasaurus 6:21365f733399 183 uint64_t c_up;
Ownasaurus 6:21365f733399 184 uint64_t c_down;
Ownasaurus 6:21365f733399 185 uint64_t c_left;
Ownasaurus 6:21365f733399 186 uint64_t c_right;
Ownasaurus 6:21365f733399 187
Ownasaurus 6:21365f733399 188 XpadControls()
Ownasaurus 6:21365f733399 189 {
Ownasaurus 6:21365f733399 190 LoadControls();
Ownasaurus 6:21365f733399 191 }
Ownasaurus 6:21365f733399 192
Ownasaurus 6:21365f733399 193 void PrintControls()
Ownasaurus 6:21365f733399 194 {
Ownasaurus 6:21365f733399 195 pc.printf("The mask for a is: 0x%X\r\n",a);
Ownasaurus 6:21365f733399 196 pc.printf("The mask for start is: 0x%X\r\n",start);
Ownasaurus 6:21365f733399 197 }
Ownasaurus 6:21365f733399 198 } xpc;
Ownasaurus 6:21365f733399 199
Ownasaurus 6:21365f733399 200 const int SAVE_ADDR = 0x0800C000; // sector 3
Ownasaurus 6:21365f733399 201 XpadControls* saveData = (XpadControls*)SAVE_ADDR;
Ownasaurus 6:21365f733399 202
Ownasaurus 6:21365f733399 203 // linear search, find first button pressed
Ownasaurus 6:21365f733399 204 // if the user pressed 2 buttons, its the user's fault
Ownasaurus 6:21365f733399 205 uint64_t DetectButton()
Ownasaurus 6:21365f733399 206 {
Ownasaurus 6:21365f733399 207 if(AXYB != 0)
Ownasaurus 6:21365f733399 208 {
Ownasaurus 6:21365f733399 209 if(AXYB & 0x01) // a
Ownasaurus 6:21365f733399 210 {
Ownasaurus 6:21365f733399 211 return A_MASK;
Ownasaurus 6:21365f733399 212 }
Ownasaurus 6:21365f733399 213 else if((AXYB >> 1) & 0x01) // b
Ownasaurus 6:21365f733399 214 {
Ownasaurus 6:21365f733399 215 return B_MASK;
Ownasaurus 6:21365f733399 216 }
Ownasaurus 6:21365f733399 217 else if((AXYB >> 2) & 0x01) // x
Ownasaurus 6:21365f733399 218 {
Ownasaurus 6:21365f733399 219 return X_MASK;
Ownasaurus 6:21365f733399 220 }
Ownasaurus 6:21365f733399 221 else if((AXYB >> 3) & 0x01) // y
Ownasaurus 6:21365f733399 222 {
Ownasaurus 6:21365f733399 223 return Y_MASK;
Ownasaurus 6:21365f733399 224 }
Ownasaurus 6:21365f733399 225 }
Ownasaurus 6:21365f733399 226 else if(XLBRB != 0)
Ownasaurus 6:21365f733399 227 {
Ownasaurus 6:21365f733399 228 if((XLBRB >> 1) & 0x01) // right bumper
Ownasaurus 6:21365f733399 229 {
Ownasaurus 6:21365f733399 230 return RB_MASK;
Ownasaurus 6:21365f733399 231 }
Ownasaurus 6:21365f733399 232 else if(XLBRB & 0x01) // left bumper
Ownasaurus 6:21365f733399 233 {
Ownasaurus 6:21365f733399 234 return LB_MASK;
Ownasaurus 6:21365f733399 235 }
Ownasaurus 6:21365f733399 236 // the Xbox ("X") button is ignored in this firmware
Ownasaurus 6:21365f733399 237 }
Ownasaurus 6:21365f733399 238 else if(bkStrtLCRC != 0)
Ownasaurus 6:21365f733399 239 {
Ownasaurus 6:21365f733399 240 if(bkStrtLCRC & 0x01) // start
Ownasaurus 6:21365f733399 241 {
Ownasaurus 6:21365f733399 242 return START_MASK;
Ownasaurus 6:21365f733399 243 }
Ownasaurus 6:21365f733399 244 else if(bkStrtLCRC & 0x02) // back
Ownasaurus 6:21365f733399 245 {
Ownasaurus 6:21365f733399 246 return BACK_MASK;
Ownasaurus 6:21365f733399 247 }
Ownasaurus 6:21365f733399 248 else if(bkStrtLCRC & 0x04) // L analog button
Ownasaurus 6:21365f733399 249 {
Ownasaurus 6:21365f733399 250 return LAB_MASK;
Ownasaurus 6:21365f733399 251 }
Ownasaurus 6:21365f733399 252 else if(bkStrtLCRC & 0x08) // R analog button
Ownasaurus 6:21365f733399 253 {
Ownasaurus 6:21365f733399 254 return RAB_MASK;
Ownasaurus 6:21365f733399 255 }
Ownasaurus 6:21365f733399 256 }
Ownasaurus 6:21365f733399 257 else if(DPad != 0)
Ownasaurus 6:21365f733399 258 {
Ownasaurus 6:21365f733399 259 if(DPad & 0x01) // DPad Up
Ownasaurus 6:21365f733399 260 {
Ownasaurus 6:21365f733399 261 return DUP_MASK;
Ownasaurus 6:21365f733399 262 }
Ownasaurus 6:21365f733399 263 else if(DPad & 0x02) // DPad Down
Ownasaurus 6:21365f733399 264 {
Ownasaurus 6:21365f733399 265 return DDOWN_MASK;
Ownasaurus 6:21365f733399 266 }
Ownasaurus 6:21365f733399 267 else if(DPad & 0x04) // DPad Left
Ownasaurus 6:21365f733399 268 {
Ownasaurus 6:21365f733399 269 return DLEFT_MASK;
Ownasaurus 6:21365f733399 270 }
Ownasaurus 6:21365f733399 271 else if(DPad & 0x08) // DPad Right
Ownasaurus 6:21365f733399 272 {
Ownasaurus 6:21365f733399 273 return DRIGHT_MASK;
Ownasaurus 6:21365f733399 274 }
Ownasaurus 6:21365f733399 275 }
Ownasaurus 6:21365f733399 276 else if(Lt > TRIGGER_THRESHOLD)
Ownasaurus 6:21365f733399 277 {
Ownasaurus 6:21365f733399 278 return LT_MASK;
Ownasaurus 6:21365f733399 279 }
Ownasaurus 6:21365f733399 280 else if(Rt > TRIGGER_THRESHOLD)
Ownasaurus 6:21365f733399 281 {
Ownasaurus 6:21365f733399 282 return RT_MASK;
Ownasaurus 6:21365f733399 283 }
Ownasaurus 6:21365f733399 284
Ownasaurus 6:21365f733399 285 return 0; // no button was pressed
Ownasaurus 6:21365f733399 286 }
Ownasaurus 6:21365f733399 287
Ownasaurus 6:21365f733399 288 void ChangeButtonMapping(uint64_t bt)
Ownasaurus 6:21365f733399 289 {
Ownasaurus 6:21365f733399 290 // analog settings must be hardcoded, cannot change on the fly
Ownasaurus 6:21365f733399 291
Ownasaurus 6:21365f733399 292 if(state == DPAD_UP) // state = 1 --> dpad up
Ownasaurus 6:21365f733399 293 {
Ownasaurus 6:21365f733399 294 xpc.up = bt;
Ownasaurus 6:21365f733399 295 }
Ownasaurus 6:21365f733399 296 else if(state == DPAD_DOWN) // state = 2 --> dpad down
Ownasaurus 6:21365f733399 297 {
Ownasaurus 6:21365f733399 298 xpc.down = bt;
Ownasaurus 6:21365f733399 299 }
Ownasaurus 6:21365f733399 300 else if(state == DPAD_LEFT) // state = 3 --> dpad left
Ownasaurus 6:21365f733399 301 {
Ownasaurus 6:21365f733399 302 xpc.left = bt;
Ownasaurus 6:21365f733399 303 }
Ownasaurus 6:21365f733399 304 else if(state == DPAD_RIGHT) // state = 4 --> dpad right
Ownasaurus 6:21365f733399 305 {
Ownasaurus 6:21365f733399 306 xpc.right = bt;
Ownasaurus 6:21365f733399 307 }
Ownasaurus 6:21365f733399 308 else if(state == BUTTON_START) // state = 5 --> start
Ownasaurus 6:21365f733399 309 {
Ownasaurus 6:21365f733399 310 xpc.start = bt;
Ownasaurus 6:21365f733399 311 }
Ownasaurus 6:21365f733399 312 else if(state == BUTTON_B) // state = 6 --> B
Ownasaurus 6:21365f733399 313 {
Ownasaurus 6:21365f733399 314 xpc.b = bt;
Ownasaurus 6:21365f733399 315 }
Ownasaurus 6:21365f733399 316 else if(state == BUTTON_A) // state = 7 --> A
Ownasaurus 6:21365f733399 317 {
Ownasaurus 6:21365f733399 318 xpc.a = bt;
Ownasaurus 6:21365f733399 319 }
Ownasaurus 6:21365f733399 320 else if(state == C_UP) // state = 8 --> c up
Ownasaurus 6:21365f733399 321 {
Ownasaurus 6:21365f733399 322 xpc.c_up = bt;
Ownasaurus 6:21365f733399 323 }
Ownasaurus 6:21365f733399 324 else if(state == C_DOWN) // state = 9 --> c down
Ownasaurus 6:21365f733399 325 {
Ownasaurus 6:21365f733399 326 xpc.c_down = bt;
Ownasaurus 6:21365f733399 327 }
Ownasaurus 6:21365f733399 328 else if(state == C_LEFT) // state = 10 --> c left
Ownasaurus 6:21365f733399 329 {
Ownasaurus 6:21365f733399 330 xpc.c_left = bt;
Ownasaurus 6:21365f733399 331 }
Ownasaurus 6:21365f733399 332 else if(state == C_RIGHT) // state = 11 --> c right
Ownasaurus 6:21365f733399 333 {
Ownasaurus 6:21365f733399 334 xpc.c_right = bt;
Ownasaurus 6:21365f733399 335 }
Ownasaurus 6:21365f733399 336 else if(state == BUTTON_L) // state = 12 --> L
Ownasaurus 6:21365f733399 337 {
Ownasaurus 6:21365f733399 338 xpc.l = bt;
Ownasaurus 6:21365f733399 339 }
Ownasaurus 6:21365f733399 340 else if(state == BUTTON_R) // state = 13 --> R
Ownasaurus 6:21365f733399 341 {
Ownasaurus 6:21365f733399 342 xpc.r = bt;
Ownasaurus 6:21365f733399 343 }
Ownasaurus 6:21365f733399 344 else if(state == BUTTON_Z) // state = 14 --> Z
Ownasaurus 6:21365f733399 345 {
Ownasaurus 6:21365f733399 346 xpc.z = bt;
Ownasaurus 6:21365f733399 347 }
Ownasaurus 6:21365f733399 348 }
Ownasaurus 6:21365f733399 349
Ownasaurus 6:21365f733399 350 void SaveControls()
Ownasaurus 6:21365f733399 351 {
Ownasaurus 6:21365f733399 352 FLASH_Unlock(); //unlock flash writing
Ownasaurus 6:21365f733399 353 FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
Ownasaurus 6:21365f733399 354 FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
Ownasaurus 6:21365f733399 355 FLASH_EraseSector(FLASH_Sector_3,VoltageRange_3); // 0x0800C000 - 0x0800FFFF
Ownasaurus 6:21365f733399 356
Ownasaurus 6:21365f733399 357 uint32_t* data = (uint32_t*)&xpc;
Ownasaurus 6:21365f733399 358
Ownasaurus 6:21365f733399 359 // Total size is 112 bytes
Ownasaurus 6:21365f733399 360 // Each word is 4 bytes, so the total size is 28 words
Ownasaurus 6:21365f733399 361 // Note: ProgramDoubleWord requires a higher voltage, so we must do one word at a time
Ownasaurus 6:21365f733399 362 for(int ct = 0;ct < 28;ct++)
Ownasaurus 6:21365f733399 363 {
Ownasaurus 6:21365f733399 364 FLASH_ProgramWord(SAVE_ADDR+(ct*4),*data); //each SAVE_ADDR+4 is 4 bytes because it is a memory address
Ownasaurus 6:21365f733399 365 data++; // each data+1 is 4 bytes because it is a 32 bit data type
Ownasaurus 6:21365f733399 366 }
Ownasaurus 6:21365f733399 367
Ownasaurus 6:21365f733399 368 FLASH_Lock(); // lock it back up
Ownasaurus 6:21365f733399 369 }
Ownasaurus 6:21365f733399 370
Ownasaurus 6:21365f733399 371 void LoadControls()
Ownasaurus 6:21365f733399 372 {
Ownasaurus 6:21365f733399 373 memcpy(&xpc,saveData,sizeof(XpadControls));
Ownasaurus 6:21365f733399 374 pc.printf("Controls have been loaded!\r\n");
Ownasaurus 6:21365f733399 375 }
Ownasaurus 6:21365f733399 376
Ownasaurus 6:21365f733399 377 void AdvanceState()
Ownasaurus 6:21365f733399 378 {
Ownasaurus 6:21365f733399 379 state++;
Ownasaurus 6:21365f733399 380 if(state >= 15) // we're done mapping the controls
Ownasaurus 6:21365f733399 381 {
Ownasaurus 6:21365f733399 382 SaveControls(); // write directly to flash
Ownasaurus 6:21365f733399 383 state = NORMAL; // back to normal controller operation
Ownasaurus 6:21365f733399 384 }
Ownasaurus 6:21365f733399 385 }
Ownasaurus 6:21365f733399 386
Ownasaurus 3:52b2a7514406 387 void onXpadEvent (int buttons, int stick_lx, int stick_ly, int stick_rx, int stick_ry, int trigger_l, int trigger_r)
Ownasaurus 2:c20d8438f206 388 {
Ownasaurus 3:52b2a7514406 389 AXYB=buttons>>12;
Ownasaurus 3:52b2a7514406 390 XLBRB=(buttons&0x0f00)>>8;
Ownasaurus 3:52b2a7514406 391 bkStrtLCRC=(buttons&0x00f0)>>4;
Ownasaurus 3:52b2a7514406 392 DPad=buttons&0x000f;
Ownasaurus 2:c20d8438f206 393
Ownasaurus 5:32c8b316582a 394 //pc.printf("AXYB: %u, XLBRB, %u, bkStrtLCRC %u, DPad, %u\r\n",AXYB,XLBRB,bkStrtLCRC,DPad);
Ownasaurus 5:32c8b316582a 395
Ownasaurus 5:32c8b316582a 396 // normalize the analog stick values to be 80 max
Ownasaurus 6:21365f733399 397 //LSY=(char)((int)(stick_ly*sN));
Ownasaurus 6:21365f733399 398 //LSX=(char)((int)(stick_lx*sN));
Ownasaurus 3:52b2a7514406 399 RSY=stick_ry*sN;
Ownasaurus 3:52b2a7514406 400 RSX=stick_rx*sN;
Ownasaurus 2:c20d8438f206 401
Ownasaurus 5:32c8b316582a 402 // normalize the trigger values to be 10 max
Ownasaurus 3:52b2a7514406 403 Lt=trigger_l*tN;
Ownasaurus 3:52b2a7514406 404 Rt=trigger_r*tN;
Ownasaurus 2:c20d8438f206 405
Ownasaurus 6:21365f733399 406 if(state == 0)
Ownasaurus 3:52b2a7514406 407 {
Ownasaurus 6:21365f733399 408 memset(&n64_data,0,4); // clear controller state
Ownasaurus 6:21365f733399 409
Ownasaurus 6:21365f733399 410 uint64_t buttons_and_triggers = buttons;
Ownasaurus 6:21365f733399 411
Ownasaurus 6:21365f733399 412 if(Lt > TRIGGER_THRESHOLD)
Ownasaurus 6:21365f733399 413 {
Ownasaurus 6:21365f733399 414 buttons_and_triggers |= LT_MASK;
Ownasaurus 6:21365f733399 415 }
Ownasaurus 6:21365f733399 416 if(Rt > TRIGGER_THRESHOLD)
Ownasaurus 6:21365f733399 417 {
Ownasaurus 6:21365f733399 418 buttons_and_triggers |= RT_MASK;
Ownasaurus 6:21365f733399 419 }
Ownasaurus 6:21365f733399 420
Ownasaurus 6:21365f733399 421 if(buttons_and_triggers & xpc.up)
Ownasaurus 6:21365f733399 422 {
Ownasaurus 6:21365f733399 423 n64_data.up = 1;
Ownasaurus 6:21365f733399 424 }
Ownasaurus 6:21365f733399 425 if(buttons_and_triggers & xpc.down)
Ownasaurus 6:21365f733399 426 {
Ownasaurus 6:21365f733399 427 n64_data.down = 1;
Ownasaurus 6:21365f733399 428 }
Ownasaurus 6:21365f733399 429 if(buttons_and_triggers & xpc.left)
Ownasaurus 6:21365f733399 430 {
Ownasaurus 6:21365f733399 431 n64_data.left = 1;
Ownasaurus 6:21365f733399 432 }
Ownasaurus 6:21365f733399 433 if(buttons_and_triggers & xpc.right)
Ownasaurus 6:21365f733399 434 {
Ownasaurus 6:21365f733399 435 n64_data.right = 1;
Ownasaurus 6:21365f733399 436 }
Ownasaurus 6:21365f733399 437 if(buttons_and_triggers & xpc.c_up)
Ownasaurus 6:21365f733399 438 {
Ownasaurus 6:21365f733399 439 n64_data.c_up = 1;
Ownasaurus 6:21365f733399 440 }
Ownasaurus 6:21365f733399 441 if(buttons_and_triggers & xpc.c_down)
Ownasaurus 6:21365f733399 442 {
Ownasaurus 6:21365f733399 443 n64_data.c_down = 1;
Ownasaurus 6:21365f733399 444 }
Ownasaurus 6:21365f733399 445 if(buttons_and_triggers & xpc.c_left)
Ownasaurus 6:21365f733399 446 {
Ownasaurus 6:21365f733399 447 n64_data.c_left = 1;
Ownasaurus 6:21365f733399 448 }
Ownasaurus 6:21365f733399 449 if(buttons_and_triggers & xpc.c_right)
Ownasaurus 6:21365f733399 450 {
Ownasaurus 6:21365f733399 451 n64_data.c_right = 1;
Ownasaurus 6:21365f733399 452 }
Ownasaurus 6:21365f733399 453 if(buttons_and_triggers & xpc.l)
Ownasaurus 6:21365f733399 454 {
Ownasaurus 6:21365f733399 455 n64_data.l = 1;
Ownasaurus 6:21365f733399 456 }
Ownasaurus 6:21365f733399 457 if(buttons_and_triggers & xpc.r)
Ownasaurus 6:21365f733399 458 {
Ownasaurus 6:21365f733399 459 n64_data.r = 1;
Ownasaurus 6:21365f733399 460 }
Ownasaurus 6:21365f733399 461 if(buttons_and_triggers & xpc.z)
Ownasaurus 6:21365f733399 462 {
Ownasaurus 6:21365f733399 463 n64_data.z = 1;
Ownasaurus 6:21365f733399 464 }
Ownasaurus 6:21365f733399 465 if(buttons_and_triggers & xpc.a)
Ownasaurus 6:21365f733399 466 {
Ownasaurus 6:21365f733399 467 n64_data.a = 1;
Ownasaurus 6:21365f733399 468 }
Ownasaurus 6:21365f733399 469 if(buttons_and_triggers & xpc.b)
Ownasaurus 6:21365f733399 470 {
Ownasaurus 6:21365f733399 471 n64_data.b = 1;
Ownasaurus 6:21365f733399 472 }
Ownasaurus 6:21365f733399 473 if(buttons_and_triggers & xpc.start)
Ownasaurus 6:21365f733399 474 {
Ownasaurus 6:21365f733399 475 n64_data.start = 1;
Ownasaurus 6:21365f733399 476 }
Ownasaurus 6:21365f733399 477
Ownasaurus 6:21365f733399 478 // LD code, val is the x_axis value from -32k to +32k
Ownasaurus 6:21365f733399 479 // seems pretty inefficient but hopefully its fast enough
Ownasaurus 6:21365f733399 480 int val = stick_lx;
Ownasaurus 6:21365f733399 481 float X1_norm;
Ownasaurus 6:21365f733399 482 if(val > 0)
Ownasaurus 6:21365f733399 483 {
Ownasaurus 6:21365f733399 484 X1_norm = val / 32767.f;
Ownasaurus 6:21365f733399 485 X1_norm = (X1_norm - dead_zone / 100.0) * 100.0 / (100.0 - dead_zone);
Ownasaurus 6:21365f733399 486 if (X1_norm < 0) X1_norm = 0;
Ownasaurus 6:21365f733399 487
Ownasaurus 6:21365f733399 488 char ans = (char)(127 * X1_norm * joy_range / 100);
Ownasaurus 6:21365f733399 489 n64_data.x_axis = reverse(ans);
Ownasaurus 6:21365f733399 490 }
Ownasaurus 6:21365f733399 491 else
Ownasaurus 6:21365f733399 492 {
Ownasaurus 6:21365f733399 493 X1_norm = val / 32768.f;
Ownasaurus 6:21365f733399 494 X1_norm = (X1_norm + dead_zone / 100.0) * 100.0 / (100.0 - dead_zone);
Ownasaurus 6:21365f733399 495 if (X1_norm > 0) X1_norm = 0;
Ownasaurus 6:21365f733399 496
Ownasaurus 6:21365f733399 497 char ans = (char)(128 * X1_norm * joy_range / 100);
Ownasaurus 6:21365f733399 498 n64_data.x_axis = reverse(ans);
Ownasaurus 6:21365f733399 499 }
Ownasaurus 6:21365f733399 500
Ownasaurus 6:21365f733399 501 // repeat for y values
Ownasaurus 6:21365f733399 502 val = stick_ly;
Ownasaurus 6:21365f733399 503 if(val > 0)
Ownasaurus 6:21365f733399 504 {
Ownasaurus 6:21365f733399 505 X1_norm = val / 32767.f;
Ownasaurus 6:21365f733399 506 X1_norm = (X1_norm - dead_zone / 100.0) * 100.0 / (100.0 - dead_zone);
Ownasaurus 6:21365f733399 507 if (X1_norm < 0) X1_norm = 0;
Ownasaurus 6:21365f733399 508
Ownasaurus 6:21365f733399 509 char ans = (char)(127 * X1_norm * joy_range / 100);
Ownasaurus 6:21365f733399 510 n64_data.y_axis = reverse(ans);
Ownasaurus 6:21365f733399 511 }
Ownasaurus 6:21365f733399 512 else
Ownasaurus 6:21365f733399 513 {
Ownasaurus 6:21365f733399 514 X1_norm = val / 32768.f;
Ownasaurus 6:21365f733399 515 X1_norm = (X1_norm + dead_zone / 100.0) * 100.0 / (100.0 - dead_zone);
Ownasaurus 6:21365f733399 516 if (X1_norm > 0) X1_norm = 0;
Ownasaurus 6:21365f733399 517
Ownasaurus 6:21365f733399 518 char ans = (char)(128 * X1_norm * joy_range / 100);
Ownasaurus 6:21365f733399 519 n64_data.y_axis = reverse(ans);
Ownasaurus 6:21365f733399 520 }
Ownasaurus 6:21365f733399 521
Ownasaurus 6:21365f733399 522 // Generic analog stick
Ownasaurus 6:21365f733399 523 /*if(LSX > DEADZONE)
Ownasaurus 6:21365f733399 524 {
Ownasaurus 6:21365f733399 525 n64_data.x_axis = reverse(LSX);
Ownasaurus 6:21365f733399 526 }
Ownasaurus 6:21365f733399 527 if(LSY > DEADZONE)
Ownasaurus 6:21365f733399 528 {
Ownasaurus 6:21365f733399 529 n64_data.y_axis = reverse(LSY);
Ownasaurus 6:21365f733399 530 }*/
Ownasaurus 3:52b2a7514406 531 }
Ownasaurus 6:21365f733399 532 else // state > 0 so we are in the process of changing controls
Ownasaurus 5:32c8b316582a 533 {
Ownasaurus 6:21365f733399 534 uint64_t b = DetectButton(); // read for button presses (just do linear search)
Ownasaurus 6:21365f733399 535 if(b != 0) /*button was actually is pressed*/
Ownasaurus 6:21365f733399 536 {
Ownasaurus 6:21365f733399 537 if(XpadButtonPressed == false)
Ownasaurus 6:21365f733399 538 {
Ownasaurus 6:21365f733399 539 XpadButtonPressed = true;
Ownasaurus 6:21365f733399 540 ChangeButtonMapping(b);
Ownasaurus 6:21365f733399 541 AdvanceState();
Ownasaurus 6:21365f733399 542 }
Ownasaurus 6:21365f733399 543 }
Ownasaurus 6:21365f733399 544 else
Ownasaurus 6:21365f733399 545 {
Ownasaurus 6:21365f733399 546 XpadButtonPressed = false;
Ownasaurus 6:21365f733399 547 }
Ownasaurus 2:c20d8438f206 548 }
Ownasaurus 2:c20d8438f206 549 }
Ownasaurus 0:eb2258e8c4b5 550
Ownasaurus 0:eb2258e8c4b5 551 // 0 is 3 microseconds low followed by 1 microsecond high
Ownasaurus 0:eb2258e8c4b5 552 // 1 is 1 microsecond low followed by 3 microseconds high
Ownasaurus 0:eb2258e8c4b5 553 unsigned int GetMiddleOfPulse()
Ownasaurus 0:eb2258e8c4b5 554 {
Ownasaurus 0:eb2258e8c4b5 555 // wait for line to go high
Ownasaurus 0:eb2258e8c4b5 556 while(1)
Ownasaurus 0:eb2258e8c4b5 557 {
Ownasaurus 0:eb2258e8c4b5 558 if(data.read() == 1) break;
Ownasaurus 0:eb2258e8c4b5 559 }
Ownasaurus 0:eb2258e8c4b5 560
Ownasaurus 0:eb2258e8c4b5 561 // wait for line to go low
Ownasaurus 0:eb2258e8c4b5 562 while(1)
Ownasaurus 0:eb2258e8c4b5 563 {
Ownasaurus 0:eb2258e8c4b5 564 if(data.read() == 0) break;
Ownasaurus 0:eb2258e8c4b5 565 }
Ownasaurus 0:eb2258e8c4b5 566
Ownasaurus 0:eb2258e8c4b5 567 // now we have the falling edge
Ownasaurus 0:eb2258e8c4b5 568 // wait 2 microseconds to be in the middle of the pulse, and read. high --> 1. low --> 0.
Ownasaurus 0:eb2258e8c4b5 569 my_wait_us_asm(2);
Ownasaurus 0:eb2258e8c4b5 570 return (unsigned int) data.read();
Ownasaurus 0:eb2258e8c4b5 571 }
Ownasaurus 0:eb2258e8c4b5 572
Ownasaurus 0:eb2258e8c4b5 573 // continuously read bits until at least 9 are read, confirm valid command, return without stop bit
Ownasaurus 0:eb2258e8c4b5 574 unsigned int readCommand()
Ownasaurus 0:eb2258e8c4b5 575 {
Ownasaurus 0:eb2258e8c4b5 576 unsigned int command = GetMiddleOfPulse(), bits_read = 1;
Ownasaurus 0:eb2258e8c4b5 577
Ownasaurus 0:eb2258e8c4b5 578 while(1) // read at least 9 bits (2 bytes + stop bit)
Ownasaurus 0:eb2258e8c4b5 579 {
Ownasaurus 0:eb2258e8c4b5 580 //my_wait_us_asm(4);
Ownasaurus 0:eb2258e8c4b5 581 command = command << 1; // make room for the new bit
Ownasaurus 0:eb2258e8c4b5 582 //command += data.read(); // place the new bit into the command
Ownasaurus 0:eb2258e8c4b5 583 command += GetMiddleOfPulse();
Ownasaurus 0:eb2258e8c4b5 584 command &= 0x1FF; // remove all except the last 9 bits
Ownasaurus 0:eb2258e8c4b5 585
Ownasaurus 0:eb2258e8c4b5 586 bits_read++;
Ownasaurus 0:eb2258e8c4b5 587
Ownasaurus 0:eb2258e8c4b5 588 if(bits_read >= 9) // only consider when at least a whole command's length has been read
Ownasaurus 0:eb2258e8c4b5 589 {
Ownasaurus 1:3c21da72660d 590 if(command == 0x3 || command == 0x1 || command == 0x1FF || command == 0x5 || command == 0x7)
Ownasaurus 0:eb2258e8c4b5 591 {
Ownasaurus 0:eb2258e8c4b5 592 // 0x3 = 0x1 + stop bit --> get controller state
Ownasaurus 0:eb2258e8c4b5 593 // 0x1 = 0x0 + stop bit --> who are you?
Ownasaurus 0:eb2258e8c4b5 594 // 0x1FF = 0xFF + stop bit --> reset signal
Ownasaurus 1:3c21da72660d 595 // 0x5 = 0x10 + stop bit --> read
Ownasaurus 1:3c21da72660d 596 // 0x7 = 0x11 + stop bit --> write
Ownasaurus 0:eb2258e8c4b5 597 command = command >> 1; // get rid of the stop bit
Ownasaurus 0:eb2258e8c4b5 598 return command;
Ownasaurus 0:eb2258e8c4b5 599 }
Ownasaurus 0:eb2258e8c4b5 600 }
Ownasaurus 0:eb2258e8c4b5 601 }
Ownasaurus 0:eb2258e8c4b5 602 }
Ownasaurus 0:eb2258e8c4b5 603
Ownasaurus 0:eb2258e8c4b5 604 void write_1()
Ownasaurus 0:eb2258e8c4b5 605 {
Ownasaurus 0:eb2258e8c4b5 606 data = 0;
Ownasaurus 0:eb2258e8c4b5 607 my_wait_us_asm(1);
Ownasaurus 0:eb2258e8c4b5 608 data = 1;
Ownasaurus 0:eb2258e8c4b5 609 my_wait_us_asm(3);
Ownasaurus 0:eb2258e8c4b5 610 //pc.printf("1");
Ownasaurus 0:eb2258e8c4b5 611 }
Ownasaurus 0:eb2258e8c4b5 612
Ownasaurus 0:eb2258e8c4b5 613 void write_0()
Ownasaurus 0:eb2258e8c4b5 614 {
Ownasaurus 0:eb2258e8c4b5 615 data = 0;
Ownasaurus 0:eb2258e8c4b5 616 my_wait_us_asm(3);
Ownasaurus 0:eb2258e8c4b5 617 data = 1;
Ownasaurus 0:eb2258e8c4b5 618 my_wait_us_asm(1);
Ownasaurus 0:eb2258e8c4b5 619 //pc.printf("0");
Ownasaurus 0:eb2258e8c4b5 620 }
Ownasaurus 0:eb2258e8c4b5 621
Ownasaurus 0:eb2258e8c4b5 622
Ownasaurus 1:3c21da72660d 623 void SendStop()
Ownasaurus 0:eb2258e8c4b5 624 {
Ownasaurus 0:eb2258e8c4b5 625 data = 0;
Ownasaurus 0:eb2258e8c4b5 626 my_wait_us_asm(1);
Ownasaurus 0:eb2258e8c4b5 627 data = 1;
Ownasaurus 0:eb2258e8c4b5 628 }
Ownasaurus 0:eb2258e8c4b5 629
Ownasaurus 1:3c21da72660d 630 // send a byte from LSB to MSB (proper serialization)
Ownasaurus 1:3c21da72660d 631 void SendByte(unsigned char b)
Ownasaurus 0:eb2258e8c4b5 632 {
Ownasaurus 0:eb2258e8c4b5 633 for(int i = 0;i < 8;i++) // send all 8 bits, one at a time
Ownasaurus 0:eb2258e8c4b5 634 {
Ownasaurus 0:eb2258e8c4b5 635 if((b >> i) & 1)
Ownasaurus 0:eb2258e8c4b5 636 {
Ownasaurus 0:eb2258e8c4b5 637 write_1();
Ownasaurus 0:eb2258e8c4b5 638 }
Ownasaurus 0:eb2258e8c4b5 639 else
Ownasaurus 0:eb2258e8c4b5 640 {
Ownasaurus 0:eb2258e8c4b5 641 write_0();
Ownasaurus 0:eb2258e8c4b5 642 }
Ownasaurus 0:eb2258e8c4b5 643 }
Ownasaurus 0:eb2258e8c4b5 644 }
Ownasaurus 0:eb2258e8c4b5 645
Ownasaurus 1:3c21da72660d 646 void SendIdentity()
Ownasaurus 1:3c21da72660d 647 {
Ownasaurus 1:3c21da72660d 648 // reply 0x05, 0x00, 0x02
Ownasaurus 1:3c21da72660d 649 SendByte(0x05);
Ownasaurus 1:3c21da72660d 650 SendByte(0x00);
Ownasaurus 1:3c21da72660d 651 SendByte(0x02);
Ownasaurus 1:3c21da72660d 652 SendStop();
Ownasaurus 1:3c21da72660d 653 }
Ownasaurus 1:3c21da72660d 654
Ownasaurus 1:3c21da72660d 655 void SendControllerData()
Ownasaurus 1:3c21da72660d 656 {
Ownasaurus 1:3c21da72660d 657 unsigned long data = *(unsigned long*)&n64_data;
Ownasaurus 1:3c21da72660d 658 unsigned int size = sizeof(data) * 8; // should be 4 bytes * 8 = 32 bits
Ownasaurus 1:3c21da72660d 659
Ownasaurus 1:3c21da72660d 660 for(unsigned int i = 0;i < size;i++)
Ownasaurus 1:3c21da72660d 661 {
Ownasaurus 1:3c21da72660d 662 if((data >> i) & 1)
Ownasaurus 1:3c21da72660d 663 {
Ownasaurus 1:3c21da72660d 664 write_1();
Ownasaurus 1:3c21da72660d 665 }
Ownasaurus 1:3c21da72660d 666 else
Ownasaurus 1:3c21da72660d 667 {
Ownasaurus 1:3c21da72660d 668 write_0();
Ownasaurus 1:3c21da72660d 669 }
Ownasaurus 1:3c21da72660d 670 }
Ownasaurus 1:3c21da72660d 671
Ownasaurus 1:3c21da72660d 672 SendStop();
Ownasaurus 1:3c21da72660d 673 }
Ownasaurus 1:3c21da72660d 674
Ownasaurus 0:eb2258e8c4b5 675 int main()
Ownasaurus 0:eb2258e8c4b5 676 {
Ownasaurus 6:21365f733399 677 bool buttonPressed = false;
Ownasaurus 5:32c8b316582a 678
Ownasaurus 2:c20d8438f206 679 pc.printf("\r\nNow loaded! SystemCoreClock = %d Hz\r\n", SystemCoreClock);
Ownasaurus 1:3c21da72660d 680
Ownasaurus 2:c20d8438f206 681 USBHostXpad xpad;
Ownasaurus 2:c20d8438f206 682 if (!xpad.connect()) {
Ownasaurus 2:c20d8438f206 683 pc.printf("Error: XBox controller not found.\n");
Ownasaurus 1:3c21da72660d 684 }
Ownasaurus 2:c20d8438f206 685
Ownasaurus 2:c20d8438f206 686 xpad.attachEvent(onXpadEvent);
Ownasaurus 2:c20d8438f206 687 xpad.led(USBHostXpad::LED1_ON);
Ownasaurus 0:eb2258e8c4b5 688
Ownasaurus 0:eb2258e8c4b5 689 while(1)
Ownasaurus 0:eb2258e8c4b5 690 {
Ownasaurus 6:21365f733399 691 if(state == NORMAL)
Ownasaurus 0:eb2258e8c4b5 692 {
Ownasaurus 6:21365f733399 693 if(!button) // user wants to change controls
Ownasaurus 6:21365f733399 694 {
Ownasaurus 6:21365f733399 695 if(!buttonPressed) // make sure it's a separate button press
Ownasaurus 6:21365f733399 696 {
Ownasaurus 6:21365f733399 697 buttonPressed = true;
Ownasaurus 6:21365f733399 698 state++;
Ownasaurus 6:21365f733399 699 continue;
Ownasaurus 6:21365f733399 700 }
Ownasaurus 6:21365f733399 701 }
Ownasaurus 6:21365f733399 702 else
Ownasaurus 6:21365f733399 703 {
Ownasaurus 6:21365f733399 704 buttonPressed = false;
Ownasaurus 6:21365f733399 705 }
Ownasaurus 6:21365f733399 706
Ownasaurus 6:21365f733399 707 // Set pin mode to input
Ownasaurus 6:21365f733399 708 data.input();
Ownasaurus 6:21365f733399 709
Ownasaurus 6:21365f733399 710 USBHost::poll();
Ownasaurus 6:21365f733399 711
Ownasaurus 6:21365f733399 712 __disable_irq(); // Disable Interrupts
Ownasaurus 6:21365f733399 713
Ownasaurus 6:21365f733399 714 // Read 64 command
Ownasaurus 6:21365f733399 715 unsigned int cmd = readCommand();
Ownasaurus 6:21365f733399 716
Ownasaurus 6:21365f733399 717 my_wait_us_asm(2); // wait a small amount of time before replying
Ownasaurus 6:21365f733399 718
Ownasaurus 6:21365f733399 719 //-------- SEND RESPONSE
Ownasaurus 6:21365f733399 720 // Set pin mode to output
Ownasaurus 6:21365f733399 721 data.output();
Ownasaurus 6:21365f733399 722
Ownasaurus 6:21365f733399 723 switch(cmd)
Ownasaurus 6:21365f733399 724 {
Ownasaurus 6:21365f733399 725 case 0x00: // identity
Ownasaurus 6:21365f733399 726 case 0xFF: // reset
Ownasaurus 6:21365f733399 727 SendIdentity();
Ownasaurus 6:21365f733399 728 break;
Ownasaurus 6:21365f733399 729 case 0x01: // poll for state
Ownasaurus 6:21365f733399 730 SendControllerData();
Ownasaurus 6:21365f733399 731 break;
Ownasaurus 6:21365f733399 732 default:
Ownasaurus 6:21365f733399 733 // we do not process the read and write commands (memory pack)
Ownasaurus 6:21365f733399 734 break;
Ownasaurus 6:21365f733399 735 }
Ownasaurus 6:21365f733399 736 __enable_irq(); // Enable Interrupts
Ownasaurus 6:21365f733399 737 //-------- DONE SENDING RESPOSE
Ownasaurus 0:eb2258e8c4b5 738 }
Ownasaurus 6:21365f733399 739 else
Ownasaurus 6:21365f733399 740 {
Ownasaurus 6:21365f733399 741 if(!button) // user wants to cancel and return to regular mode
Ownasaurus 6:21365f733399 742 {
Ownasaurus 6:21365f733399 743 if(!buttonPressed) // make sure it's a separate button press
Ownasaurus 6:21365f733399 744 {
Ownasaurus 6:21365f733399 745 state++;
Ownasaurus 6:21365f733399 746 buttonPressed = true;
Ownasaurus 6:21365f733399 747 continue;
Ownasaurus 6:21365f733399 748 }
Ownasaurus 6:21365f733399 749 }
Ownasaurus 6:21365f733399 750 else
Ownasaurus 6:21365f733399 751 {
Ownasaurus 6:21365f733399 752 buttonPressed = false;
Ownasaurus 6:21365f733399 753 }
Ownasaurus 6:21365f733399 754
Ownasaurus 6:21365f733399 755 myled = !myled;
Ownasaurus 6:21365f733399 756 USBHost::poll();
Ownasaurus 6:21365f733399 757 wait(0.1);
Ownasaurus 6:21365f733399 758
Ownasaurus 6:21365f733399 759 if(state == NORMAL) // about to return to normal operation, make sure the LED remains off
Ownasaurus 6:21365f733399 760 {
Ownasaurus 6:21365f733399 761 myled = false;
Ownasaurus 6:21365f733399 762 XpadButtonPressed = false;
Ownasaurus 6:21365f733399 763 }
Ownasaurus 6:21365f733399 764 }
Ownasaurus 0:eb2258e8c4b5 765 }
Ownasaurus 0:eb2258e8c4b5 766 }