plugins/dfinput/pad.c

   1 /*
   2  * Copyright (c) 2009, Wei Mingzhi <whistler@openoffice.org>.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, see <http://www.gnu.org/licenses>.
  17  *
  18  * this is only pure emulation code to handle analogs,
  19  * extracted from dfinput.
  20  */
  21
  22 #include <stdint.h>
  23
  24 #include "psemu_plugin_defs.h"
  25 #include "main.h"
  26
  27 enum {
  28         ANALOG_LEFT = 0,
  29         ANALOG_RIGHT,
  30
  31         ANALOG_TOTAL
  32 };
  33
  34 enum {
  35         CMD_READ_DATA_AND_VIBRATE = 0x42,
  36         CMD_CONFIG_MODE = 0x43,
  37         CMD_SET_MODE_AND_LOCK = 0x44,
  38         CMD_QUERY_MODEL_AND_MODE = 0x45,
  39         CMD_QUERY_ACT = 0x46, // ??
  40         CMD_QUERY_COMB = 0x47, // ??
  41         CMD_QUERY_MODE = 0x4C, // QUERY_MODE ??
  42         CMD_VIBRATION_TOGGLE = 0x4D,
  43 };
  44
  45 static struct {
  46         uint8_t PadMode;
  47         uint8_t PadID;
  48         uint8_t ConfigMode;
  49         PadDataS pad;
  50 } padstate[2];
  51
  52 static uint8_t stdpar[2][8] = {
  53         {0xFF, 0x5A, 0xFF, 0xFF, 0x80, 0x80, 0x80, 0x80},
  54         {0xFF, 0x5A, 0xFF, 0xFF, 0x80, 0x80, 0x80, 0x80}
  55 };
  56
  57 static uint8_t unk46[2][8] = {
  58         {0xFF, 0x5A, 0x00, 0x00, 0x01, 0x02, 0x00, 0x0A},
  59         {0xFF, 0x5A, 0x00, 0x00, 0x01, 0x02, 0x00, 0x0A}
  60 };
  61
  62 static uint8_t unk47[2][8] = {
  63         {0xFF, 0x5A, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00},
  64         {0xFF, 0x5A, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00}
  65 };
  66
  67 static uint8_t unk4c[2][8] = {
  68         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
  69         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  70 };
  71
  72 static uint8_t unk4d[2][8] = {
  73         {0xFF, 0x5A, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
  74         {0xFF, 0x5A, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}
  75 };
  76
  77 static uint8_t stdcfg[2][8]   = {
  78         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
  79         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  80 };
  81
  82 static uint8_t stdmode[2][8]  = {
  83         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
  84         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  85 };
  86
  87 static uint8_t stdmodel[2][8] = {
  88         {0xFF,
  89          0x5A,
  90          0x01, // 03 - dualshock2, 01 - dualshock
  91          0x02, // number of modes
  92          0x01, // current mode: 01 - analog, 00 - digital
  93          0x02,
  94          0x01,
  95          0x00},
  96         {0xFF,
  97          0x5A,
  98          0x01, // 03 - dualshock2, 01 - dualshock
  99          0x02, // number of modes
 100          0x01, // current mode: 01 - analog, 00 - digital
 101          0x02,
 102          0x01,
 103          0x00}
 104 };
 105
 106 static uint8_t *buf;
 107
 108 static uint8_t do_cmd(void)
 109 {
 110         PadDataS *pad = &padstate[CurPad].pad;
 111         int pad_num = CurPad;
 112
 113         CmdLen = 8;
 114         switch (CurCmd) {
 115                 case CMD_SET_MODE_AND_LOCK:
 116                         buf = stdmode[pad_num];
 117                         return 0xF3;
 118
 119                 case CMD_QUERY_MODEL_AND_MODE:
 120                         buf = stdmodel[pad_num];
 121                         buf[4] = padstate[pad_num].PadMode;
 122                         return 0xF3;
 123
 124                 case CMD_QUERY_ACT:
 125                         buf = unk46[pad_num];
 126                         return 0xF3;
 127
 128                 case CMD_QUERY_COMB:
 129                         buf = unk47[pad_num];
 130                         return 0xF3;
 131
 132                 case CMD_QUERY_MODE:
 133                         buf = unk4c[pad_num];
 134                         return 0xF3;
 135
 136                 case CMD_VIBRATION_TOGGLE:
 137                         buf = unk4d[pad_num];
 138                         return 0xF3;
 139
 140                 case CMD_CONFIG_MODE:
 141                         if (padstate[pad_num].ConfigMode) {
 142                                 buf = stdcfg[pad_num];
 143                                 return 0xF3;
 144                         }
 145                         // else FALLTHROUGH
 146
 147                 case CMD_READ_DATA_AND_VIBRATE:
 148                 default:
 149                         buf = stdpar[pad_num];
 150
 151                         buf[2] = pad->buttonStatus;
 152                         buf[3] = pad->buttonStatus >> 8;
 153
 154                         if (padstate[pad_num].PadMode == 1) {
 155                                 buf[4] = pad->rightJoyX;
 156                                 buf[5] = pad->rightJoyY;
 157                                 buf[6] = pad->leftJoyX;
 158                                 buf[7] = pad->leftJoyY;
 159                         } else {
 160                                 CmdLen = 4;
 161                         }
 162
 163                         return padstate[pad_num].PadID;
 164         }
 165 }
 166
 167 static void do_cmd2(unsigned char value)
 168 {
 169         switch (CurCmd) {
 170                 case CMD_CONFIG_MODE:
 171                         padstate[CurPad].ConfigMode = value;
 172                         break;
 173
 174                 case CMD_SET_MODE_AND_LOCK:
 175                         padstate[CurPad].PadMode = value;
 176                         padstate[CurPad].PadID = value ? 0x73 : 0x41;
 177                         break;
 178
 179                 case CMD_QUERY_ACT:
 180                         switch (value) {
 181                                 case 0: // default
 182                                         buf[5] = 0x02;
 183                                         buf[6] = 0x00;
 184                                         buf[7] = 0x0A;
 185                                         break;
 186
 187                                 case 1: // Param std conf change
 188                                         buf[5] = 0x01;
 189                                         buf[6] = 0x01;
 190                                         buf[7] = 0x14;
 191                                         break;
 192                         }
 193                         break;
 194
 195                 case CMD_QUERY_MODE:
 196                         switch (value) {
 197                                 case 0: // mode 0 - digital mode
 198                                         buf[5] = PSE_PAD_TYPE_STANDARD;
 199                                         break;
 200
 201                                 case 1: // mode 1 - analog mode
 202                                         buf[5] = PSE_PAD_TYPE_ANALOGPAD;
 203                                         break;
 204                         }
 205                         break;
 206         }
 207 }
 208
 209 static void do_vibration(unsigned char value)
 210 {
 211     int changed = 0;
 212     int i;
 213
 214     switch (CurCmd) {
 215         case CMD_READ_DATA_AND_VIBRATE:
 216             for (i = 0; i < 2; i++) {
 217                 if (padstate[CurPad].pad.Vib[i] == CurByte
 218                      && padstate[CurPad].pad.VibF[i] != value) {
 219                     padstate[CurPad].pad.VibF[i] = value;
 220                     changed = 1;
 221                 }
 222             }
 223
 224             if (!in_enable_vibration || !changed)
 225                 break;
 226
 227             plat_trigger_vibrate(CurPad,
 228                                  padstate[CurPad].pad.VibF[0],
 229                                  padstate[CurPad].pad.VibF[1]);
 230             break;
 231         case CMD_VIBRATION_TOGGLE:
 232             for (i = 0; i < 2; i++) {
 233                 if (padstate[CurPad].pad.Vib[i] == CurByte)
 234                     buf[CurByte] = 0;
 235             }
 236             if (value < 2) {
 237                 padstate[CurPad].pad.Vib[value] = CurByte;
 238                 if((padstate[CurPad].PadID & 0x0f) < (CurByte - 1) / 2) {
 239                     padstate[CurPad].PadID = (padstate[CurPad].PadID & 0xf0) + (CurByte - 1) / 2;
 240                 }
 241             }
 242             break;
 243     }
 244 }
 245
 246 #if 0
 247 #include <stdio.h>
 248 unsigned char PADpoll_(unsigned char value);
 249 unsigned char PADpoll(unsigned char value) {
 250         unsigned char b = CurByte, r = PADpoll_(value);
 251         printf("poll[%d] %02x %02x\n", b, value, r);
 252         return r;
 253 }
 254 #define PADpoll PADpoll_
 255 #endif
 256
 257 #ifndef HAVE_LIBRETRO
 258 unsigned char PADpoll_pad(unsigned char value) {
 259         if (CurByte == 0) {
 260                 CurCmd = value;
 261                 CurByte++;
 262
 263                 // Don't enable Analog/Vibration for a standard pad
 264                 if (padstate[CurPad].pad.controllerType != PSE_PAD_TYPE_ANALOGPAD)
 265                         CurCmd = CMD_READ_DATA_AND_VIBRATE;
 266
 267                 return do_cmd();
 268         }
 269
 270         if (CurByte >= CmdLen)
 271                 return 0xff;    // verified
 272
 273         if (CurByte == 2)
 274                 do_cmd2(value);
 275
 276         if (padstate[CurPad].pad.controllerType == PSE_PAD_TYPE_ANALOGPAD)
 277                 do_vibration(value);
 278
 279         return buf[CurByte++];
 280 }
 281
 282 unsigned char PADstartPoll_pad(int pad) {
 283         CurPad = pad - 1;
 284         CurByte = 0;
 285
 286         if (pad == 1)
 287                 PAD1_readPort1(&padstate[0].pad);
 288         else
 289                 PAD2_readPort2(&padstate[1].pad);
 290
 291         return 0xFF;
 292 }
 293
 294 void pad_init(void)
 295 {
 296         int i;
 297
 298         PAD1_readPort1(&padstate[0].pad);
 299         PAD2_readPort2(&padstate[1].pad);
 300
 301         for (i = 0; i < 2; i++) {
 302                 padstate[i].PadID = padstate[i].pad.controllerType == PSE_PAD_TYPE_ANALOGPAD ? 0x73 : 0x41;
 303                 padstate[i].PadMode = padstate[i].pad.controllerType == PSE_PAD_TYPE_ANALOGPAD;
 304         }
 305 }
 306 #endif