wiiuse/events.c

   1 #include <stdio.h>
   2
   3 #ifndef WIN32
   4         #include <sys/time.h>
   5         #include <unistd.h>
   6         #include <errno.h>
   7 #else
   8         #include <winsock2.h>
   9 #endif
  10
  11 #include <sys/types.h>
  12 #include <stdlib.h>
  13 #include <math.h>
  14 #include <string.h>
  15
  16 #include "dynamics.h"
  17 #include "definitions.h"
  18 #include "wiiuse_internal.h"
  19 #include "events.h"
  20 #include "nunchuk.h"
  21 #include "classic.h"
  22 #include "guitar_hero_3.h"
  23 #include "wiiboard.h"
  24 #include "motion_plus.h"
  25 #include "ir.h"
  26 #include "io.h"
  27
  28
  29 static void event_data_read(struct wiimote_t *wm,ubyte *msg)
  30 {
  31         ubyte err;
  32         ubyte len;
  33         uword offset;
  34         struct op_t *op;
  35         struct cmd_blk_t *cmd = wm->cmd_head;
  36
  37         wiiuse_pressed_buttons(wm,msg);
  38
  39         if(!cmd) return;
  40         if(!(cmd->state==CMD_SENT && cmd->data[0]==WM_CMD_READ_DATA)) return;
  41
  42         //printf("event_data_read(%p)\n",cmd);
  43
  44         err = msg[2]&0x0f;
  45         op = (struct op_t*)cmd->data;
  46         if(err) {
  47                 wm->cmd_head = cmd->next;
  48
  49                 cmd->state = CMD_DONE;
  50                 if(cmd->cb!=NULL) cmd->cb(wm,op->buffer,(op->readdata.size - op->wait));
  51
  52                 __lwp_queue_append(&wm->cmdq,&cmd->node);
  53                 wiiuse_send_next_command(wm);
  54                 return;
  55         }
  56
  57         len = ((msg[2]&0xf0)>>4)+1;
  58         offset = BIG_ENDIAN_SHORT(*(uword*)(msg+3));
  59
  60         //printf("addr: %08x\noffset: %d\nlen: %d\n",req->addr,offset,len);
  61
  62         op->readdata.addr = (op->readdata.addr&0xffff);
  63         op->wait -= len;
  64         if(op->wait>=op->readdata.size) op->wait = 0;
  65
  66         memcpy((op->buffer+offset-op->readdata.addr),(msg+5),len);
  67         if(!op->wait) {
  68                 wm->cmd_head = cmd->next;
  69
  70                 wm->event = WIIUSE_READ_DATA;
  71                 cmd->state = CMD_DONE;
  72                 if(cmd->cb!=NULL) cmd->cb(wm,op->buffer,op->readdata.size);
  73
  74                 __lwp_queue_append(&wm->cmdq,&cmd->node);
  75                 wiiuse_send_next_command(wm);
  76         }
  77 }
  78
  79 static void event_data_write(struct wiimote_t *wm,ubyte *msg)
  80 {
  81         struct cmd_blk_t *cmd = wm->cmd_head;
  82
  83         wiiuse_pressed_buttons(wm,msg);
  84
  85         if(!cmd) return;
  86         if(!(cmd->state==CMD_SENT && (cmd->data[0]==WM_CMD_WRITE_DATA || cmd->data[0]==WM_CMD_STREAM_DATA))) return;
  87
  88         wm->cmd_head = cmd->next;
  89
  90         wm->event = WIIUSE_WRITE_DATA;
  91         cmd->state = CMD_DONE;
  92         if(cmd->cb) cmd->cb(wm,NULL,0);
  93
  94         __lwp_queue_append(&wm->cmdq,&cmd->node);
  95         wiiuse_send_next_command(wm);
  96 }
  97
  98 static void event_status(struct wiimote_t *wm,ubyte *msg)
  99 {
 100         int ir = 0;
 101         int attachment = 0;
 102         int speaker = 0;
 103         int led[4]= {0};
 104         struct cmd_blk_t *cmd = wm->cmd_head;
 105
 106         wiiuse_pressed_buttons(wm,msg);
 107
 108         wm->event = WIIUSE_STATUS;
 109         if(msg[2]&WM_CTRL_STATUS_BYTE1_LED_1) led[0] = 1;
 110         if(msg[2]&WM_CTRL_STATUS_BYTE1_LED_2) led[1] = 1;
 111         if(msg[2]&WM_CTRL_STATUS_BYTE1_LED_3) led[2] = 1;
 112         if(msg[2]&WM_CTRL_STATUS_BYTE1_LED_4) led[3] = 1;
 113
 114         if((msg[2]&WM_CTRL_STATUS_BYTE1_ATTACHMENT)==WM_CTRL_STATUS_BYTE1_ATTACHMENT) attachment = 1;
 115         if((msg[2]&WM_CTRL_STATUS_BYTE1_SPEAKER_ENABLED)==WM_CTRL_STATUS_BYTE1_SPEAKER_ENABLED) speaker = 1;
 116         if((msg[2]&WM_CTRL_STATUS_BYTE1_IR_ENABLED)==WM_CTRL_STATUS_BYTE1_IR_ENABLED) ir = 1;
 117
 118         wm->battery_level = msg[5];
 119
 120         if(!ir && WIIMOTE_IS_SET(wm,WIIMOTE_STATE_IR_INIT)) {
 121                 WIIMOTE_DISABLE_STATE(wm, WIIMOTE_STATE_IR_INIT);
 122                 wiiuse_set_ir(wm, 1);
 123                 goto done;
 124         }
 125         if(ir && !WIIMOTE_IS_SET(wm,WIIMOTE_STATE_IR)) WIIMOTE_ENABLE_STATE(wm,WIIMOTE_STATE_IR);
 126         else if(!ir && WIIMOTE_IS_SET(wm,WIIMOTE_STATE_IR)) WIIMOTE_DISABLE_STATE(wm, WIIMOTE_STATE_IR);
 127
 128         if(!speaker && WIIMOTE_IS_SET(wm,WIIMOTE_STATE_SPEAKER_INIT)) {
 129                 WIIMOTE_DISABLE_STATE(wm,WIIMOTE_STATE_SPEAKER_INIT);
 130                 wiiuse_set_speaker(wm,1);
 131                 goto done;
 132         }
 133         if(speaker && !WIIMOTE_IS_SET(wm,WIIMOTE_STATE_SPEAKER)) WIIMOTE_ENABLE_STATE(wm,WIIMOTE_STATE_SPEAKER);
 134         else if(!speaker && WIIMOTE_IS_SET(wm,WIIMOTE_STATE_SPEAKER)) WIIMOTE_DISABLE_STATE(wm,WIIMOTE_STATE_SPEAKER);
 135
 136         if(attachment) {
 137                 if(!WIIMOTE_IS_SET(wm,WIIMOTE_STATE_EXP) && !WIIMOTE_IS_SET(wm,WIIMOTE_STATE_EXP_FAILED) && !WIIMOTE_IS_SET(wm,WIIMOTE_STATE_EXP_HANDSHAKE)) {
 138                         wiiuse_handshake_expansion_start(wm);
 139                         goto done;
 140                 }
 141         } else {
 142                 WIIMOTE_DISABLE_STATE(wm,WIIMOTE_STATE_EXP_FAILED);
 143                 if(WIIMOTE_IS_SET(wm,WIIMOTE_STATE_EXP)) {
 144                         wiiuse_disable_expansion(wm);
 145                         goto done;
 146                 }
 147         }
 148         wiiuse_set_report_type(wm,NULL);
 149
 150 done:
 151         if(!cmd) return;
 152         if(!(cmd->state==CMD_SENT && cmd->data[0]==WM_CMD_CTRL_STATUS)) return;
 153
 154         wm->cmd_head = cmd->next;
 155
 156         cmd->state = CMD_DONE;
 157         if(cmd->cb!=NULL) cmd->cb(wm,msg,6);
 158
 159         __lwp_queue_append(&wm->cmdq,&cmd->node);
 160         wiiuse_send_next_command(wm);
 161 }
 162
 163 static void handle_expansion(struct wiimote_t *wm,ubyte *msg)
 164 {
 165         switch (wm->exp.type) {
 166                 case EXP_NUNCHUK:
 167                         nunchuk_event(&wm->exp.nunchuk, msg);
 168                         break;
 169                 case EXP_CLASSIC:
 170                         classic_ctrl_event(&wm->exp.classic, msg);
 171                         break;
 172                 case EXP_GUITAR_HERO_3:
 173                         guitar_hero_3_event(&wm->exp.gh3, msg);
 174                         break;
 175                 case EXP_WII_BOARD:
 176                         wii_board_event(&wm->exp.wb, msg);
 177                         break;
 178                 case EXP_MOTION_PLUS:
 179                         motion_plus_event(&wm->exp.mp, msg);
 180                         break;
 181                 default:
 182                         break;
 183         }
 184 }
 185
 186 /**
 187  *      @brief Called on a cycle where no significant change occurs.
 188  *
 189  *      @param wm               Pointer to a wiimote_t structure.
 190  */
 191 void idle_cycle(struct wiimote_t* wm)
 192 {
 193         /*
 194          *      Smooth the angles.
 195          *
 196          *      This is done to make sure that on every cycle the orientation
 197          *      angles are smoothed.  Normally when an event occurs the angles
 198          *      are updated and smoothed, but if no packet comes in then the
 199          *      angles remain the same.  This means the angle wiiuse reports
 200          *      is still an old value.  Smoothing needs to be applied in this
 201          *      case in order for the angle it reports to converge to the true
 202          *      angle of the device.
 203          */
 204         //printf("idle_cycle()\n");///
 205         if (WIIUSE_USING_ACC(wm) && WIIMOTE_IS_FLAG_SET(wm, WIIUSE_SMOOTHING)) {
 206                 apply_smoothing(&wm->accel_calib, &wm->orient, SMOOTH_ROLL);
 207                 apply_smoothing(&wm->accel_calib, &wm->orient, SMOOTH_PITCH);
 208         }
 209 }
 210
 211 void parse_event(struct wiimote_t *wm)
 212 {
 213         ubyte event;
 214         ubyte *msg;
 215
 216         event = wm->event_buf[0];
 217         msg = wm->event_buf+1;
 218         //printf("parse_event(%02x,%p)\n",event,msg);
 219         switch(event) {
 220                 case WM_RPT_CTRL_STATUS:
 221                         event_status(wm,msg);
 222                         return;
 223                 case WM_RPT_READ:
 224                         event_data_read(wm,msg);
 225                         return;
 226                 case WM_RPT_WRITE:
 227                         event_data_write(wm,msg);
 228                         return;
 229                 case WM_RPT_BTN:
 230                         wiiuse_pressed_buttons(wm,msg);
 231                         break;
 232                 case WM_RPT_BTN_ACC:
 233                         wiiuse_pressed_buttons(wm,msg);
 234
 235                         wm->accel.x = (msg[2]<<2)|((msg[0]>>5)&3);
 236                         wm->accel.y = (msg[3]<<2)|((msg[1]>>4)&2);
 237                         wm->accel.z = (msg[4]<<2)|((msg[1]>>5)&2);
 238 #ifndef GEKKO
 239                         /* calculate the remote orientation */
 240                         calculate_orientation(&wm->accel_calib, &wm->accel, &wm->orient, WIIMOTE_IS_FLAG_SET(wm, WIIUSE_SMOOTHING));
 241
 242                         /* calculate the gforces on each axis */
 243                         calculate_gforce(&wm->accel_calib, &wm->accel, &wm->gforce);
 244 #endif
 245                         break;
 246                 case WM_RPT_BTN_ACC_IR:
 247                         wiiuse_pressed_buttons(wm,msg);
 248
 249                         wm->accel.x = (msg[2]<<2)|((msg[0]>>5)&3);
 250                         wm->accel.y = (msg[3]<<2)|((msg[1]>>4)&2);
 251                         wm->accel.z = (msg[4]<<2)|((msg[1]>>5)&2);
 252 #ifndef GEKKO
 253                         /* calculate the remote orientation */
 254                         calculate_orientation(&wm->accel_calib, &wm->accel, &wm->orient, WIIMOTE_IS_FLAG_SET(wm, WIIUSE_SMOOTHING));
 255
 256                         /* calculate the gforces on each axis */
 257                         calculate_gforce(&wm->accel_calib, &wm->accel, &wm->gforce);
 258 #endif
 259                         calculate_extended_ir(wm, msg+5);
 260                         break;
 261                 case WM_RPT_BTN_EXP:
 262                         wiiuse_pressed_buttons(wm,msg);
 263                         handle_expansion(wm,msg+2);
 264                         break;
 265                 case WM_RPT_BTN_ACC_EXP:
 266                         /* button - motion - expansion */
 267                         wiiuse_pressed_buttons(wm, msg);
 268
 269                         wm->accel.x = (msg[2]<<2)|((msg[0]>>5)&3);
 270                         wm->accel.y = (msg[3]<<2)|((msg[1]>>4)&2);
 271                         wm->accel.z = (msg[4]<<2)|((msg[1]>>5)&2);
 272 #ifndef GEKKO
 273                         calculate_orientation(&wm->accel_calib, &wm->accel, &wm->orient, WIIMOTE_IS_FLAG_SET(wm, WIIUSE_SMOOTHING));
 274                         calculate_gforce(&wm->accel_calib, &wm->accel, &wm->gforce);
 275 #endif
 276                         handle_expansion(wm, msg+5);
 277                         break;
 278                 case WM_RPT_BTN_IR_EXP:
 279                         wiiuse_pressed_buttons(wm,msg);
 280                         calculate_basic_ir(wm, msg+2);
 281                         handle_expansion(wm,msg+12);
 282                         break;
 283                 case WM_RPT_BTN_ACC_IR_EXP:
 284                         /* button - motion - ir - expansion */
 285                         wiiuse_pressed_buttons(wm, msg);
 286
 287                         wm->accel.x = (msg[2]<<2)|((msg[0]>>5)&3);
 288                         wm->accel.y = (msg[3]<<2)|((msg[1]>>4)&2);
 289                         wm->accel.z = (msg[4]<<2)|((msg[1]>>5)&2);
 290 #ifndef GEKKO
 291                         calculate_orientation(&wm->accel_calib, &wm->accel, &wm->orient, WIIMOTE_IS_FLAG_SET(wm, WIIUSE_SMOOTHING));
 292                         calculate_gforce(&wm->accel_calib, &wm->accel, &wm->gforce);
 293 #endif
 294                         /* ir */
 295                         calculate_basic_ir(wm, msg+5);
 296
 297                         handle_expansion(wm, msg+15);
 298                         break;
 299                 default:
 300                         WIIUSE_WARNING("Unknown event, can not handle it [Code 0x%x].", event);
 301                         return;
 302         }
 303
 304         /* was there an event? */
 305         wm->event = WIIUSE_EVENT;
 306 }
 307
 308 /**
 309  *      @brief Find what buttons are pressed.
 310  *
 311  *      @param wm               Pointer to a wiimote_t structure.
 312  *      @param msg              The message specified in the event packet.
 313  */
 314 void wiiuse_pressed_buttons(struct wiimote_t* wm, ubyte* msg) {
 315         short now;
 316
 317         /* convert to big endian */
 318         now = BIG_ENDIAN_SHORT(*(short*)msg) & WIIMOTE_BUTTON_ALL;
 319
 320         /* preserve old btns pressed */
 321         wm->btns_last = wm->btns;
 322
 323         /* pressed now & were pressed, then held */
 324         wm->btns_held = (now & wm->btns);
 325
 326         /* were pressed or were held & not pressed now, then released */
 327         wm->btns_released = ((wm->btns | wm->btns_held) & ~now);
 328
 329         /* buttons pressed now */
 330         wm->btns = now;
 331 }