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 "../../libpcsxcore/psemu_plugin_defs.h"
  25
  26 enum {
  27         ANALOG_LEFT = 0,
  28         ANALOG_RIGHT,
  29
  30         ANALOG_TOTAL
  31 };
  32
  33 enum {
  34         CMD_READ_DATA_AND_VIBRATE = 0x42,
  35         CMD_CONFIG_MODE = 0x43,
  36         CMD_SET_MODE_AND_LOCK = 0x44,
  37         CMD_QUERY_MODEL_AND_MODE = 0x45,
  38         CMD_QUERY_ACT = 0x46, // ??
  39         CMD_QUERY_COMB = 0x47, // ??
  40         CMD_QUERY_MODE = 0x4C, // QUERY_MODE ??
  41         CMD_VIBRATION_TOGGLE = 0x4D,
  42 };
  43
  44 static struct {
  45         uint8_t PadMode;
  46         uint8_t PadID;
  47         uint8_t ConfigMode;
  48         PadDataS pad;
  49 } padstate[2];
  50
  51 static uint8_t stdpar[2][8] = {
  52         {0xFF, 0x5A, 0xFF, 0xFF, 0x80, 0x80, 0x80, 0x80},
  53         {0xFF, 0x5A, 0xFF, 0xFF, 0x80, 0x80, 0x80, 0x80}
  54 };
  55
  56 static uint8_t unk46[2][8] = {
  57         {0xFF, 0x5A, 0x00, 0x00, 0x01, 0x02, 0x00, 0x0A},
  58         {0xFF, 0x5A, 0x00, 0x00, 0x01, 0x02, 0x00, 0x0A}
  59 };
  60
  61 static uint8_t unk47[2][8] = {
  62         {0xFF, 0x5A, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00},
  63         {0xFF, 0x5A, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00}
  64 };
  65
  66 static uint8_t unk4c[2][8] = {
  67         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
  68         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  69 };
  70
  71 static uint8_t unk4d[2][8] = {
  72         {0xFF, 0x5A, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
  73         {0xFF, 0x5A, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}
  74 };
  75
  76 static uint8_t stdcfg[2][8]   = {
  77         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
  78         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  79 };
  80
  81 static uint8_t stdmode[2][8]  = {
  82         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
  83         {0xFF, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  84 };
  85
  86 static uint8_t stdmodel[2][8] = {
  87         {0xFF,
  88          0x5A,
  89          0x01, // 03 - dualshock2, 01 - dualshock
  90          0x02, // number of modes
  91          0x01, // current mode: 01 - analog, 00 - digital
  92          0x02,
  93          0x01,
  94          0x00},
  95         {0xFF,
  96          0x5A,
  97          0x01, // 03 - dualshock2, 01 - dualshock
  98          0x02, // number of modes
  99          0x01, // current mode: 01 - analog, 00 - digital
 100          0x02,
 101          0x01,
 102          0x00}
 103 };
 104
 105 static uint8_t CurPad = 0, CurByte = 0, CurCmd = 0, CmdLen = 0;
 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 unsigned char PADpoll_(unsigned char value) {
 210
 211         if (CurByte == 0) {
 212                 CurCmd = value;
 213                 CurByte++;
 214
 215                 // Don't enable Analog/Vibration for a standard pad
 216                 if (padstate[CurPad].pad.controllerType != PSE_PAD_TYPE_ANALOGPAD)
 217                         CurCmd = CMD_READ_DATA_AND_VIBRATE;
 218
 219                 return do_cmd();
 220         }
 221
 222         if (CurByte == 2)
 223                 do_cmd2(value);
 224
 225         if (CurByte >= CmdLen)
 226                 return 0xff;    // verified
 227
 228         return buf[CurByte++];
 229 }
 230
 231 #if 0
 232 #include <stdio.h>
 233 static unsigned char PADpoll(unsigned char value) {
 234         unsigned char b = CurByte, r = PADpoll_(value);
 235         printf("poll[%d] %02x %02x\n", b, value, r);
 236         return r;
 237 }
 238 #else
 239 #define PADpoll PADpoll_
 240 #endif
 241
 242 /* hack.. */
 243 extern long (*PAD1_readPort1)(PadDataS *pad);
 244
 245 static unsigned char PADstartPoll1(int pad) {
 246         CurPad = 0;
 247         CurByte = 0;
 248
 249         PAD1_readPort1(&padstate[0].pad);
 250
 251         return 0xFF;
 252 }
 253
 254 /* some more hacks here but oh well */
 255 extern void *PAD1_startPoll, *PAD1_poll;
 256
 257 void dfinput_activate(int yes)
 258 {
 259         static void *old_start, *old_poll;
 260
 261         if (!yes) {
 262                 if (PAD1_startPoll == PADstartPoll1)
 263                         PAD1_startPoll = old_start;
 264                 if (PAD1_poll == PADpoll)
 265                         PAD1_poll = old_poll;
 266                 return;
 267         }
 268
 269         if (PAD1_startPoll == PADstartPoll1 && PAD1_poll == PADpoll)
 270                 return;
 271
 272         old_start = PAD1_startPoll;
 273         old_poll = PAD1_poll;
 274         PAD1_startPoll = PADstartPoll1;
 275         PAD1_poll = PADpoll;
 276
 277         PAD1_readPort1(&padstate[0].pad);
 278         padstate[0].PadID = padstate[0].pad.controllerType == PSE_PAD_TYPE_ANALOGPAD ? 0x73 : 0x41;
 279         padstate[0].PadMode = padstate[0].pad.controllerType == PSE_PAD_TYPE_ANALOGPAD;
 280
 281         padstate[1].PadID = 0x41;
 282         padstate[1].PadMode = 0;
 283 }
 284