Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux |
| 3 | * |
Dmitry Torokhov | ab0c344 | 2005-05-29 02:28:55 -0500 | [diff] [blame^] | 4 | * Copyright (c) 1999-2004 Vojtech Pavlik <vojtech@suse.cz> |
| 5 | * Copyright (c) 2004 Peter Nelson <rufus-kernel@hackish.org> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * |
| 7 | * Based on the work of: |
Dmitry Torokhov | ab0c344 | 2005-05-29 02:28:55 -0500 | [diff] [blame^] | 8 | * Andree Borrmann John Dahlstrom |
| 9 | * David Kuder Nathan Hand |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | */ |
| 11 | |
| 12 | /* |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License as published by |
| 15 | * the Free Software Foundation; either version 2 of the License, or |
| 16 | * (at your option) any later version. |
| 17 | * |
| 18 | * This program is distributed in the hope that it will be useful, |
| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | * GNU General Public License for more details. |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License |
| 24 | * along with this program; if not, write to the Free Software |
| 25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 26 | * |
| 27 | * Should you need to contact me, the author, you can do so either by |
| 28 | * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: |
| 29 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic |
| 30 | */ |
| 31 | |
| 32 | #include <linux/kernel.h> |
| 33 | #include <linux/delay.h> |
| 34 | #include <linux/module.h> |
| 35 | #include <linux/moduleparam.h> |
| 36 | #include <linux/init.h> |
| 37 | #include <linux/parport.h> |
| 38 | #include <linux/input.h> |
| 39 | |
| 40 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); |
| 41 | MODULE_DESCRIPTION("NES, SNES, N64, MultiSystem, PSX gamepad driver"); |
| 42 | MODULE_LICENSE("GPL"); |
| 43 | |
| 44 | static int gc[] __initdata = { -1, 0, 0, 0, 0, 0 }; |
| 45 | static int gc_nargs __initdata = 0; |
| 46 | module_param_array_named(map, gc, int, &gc_nargs, 0); |
| 47 | MODULE_PARM_DESC(map, "Describers first set of devices (<parport#>,<pad1>,<pad2>,..<pad5>)"); |
| 48 | |
| 49 | static int gc_2[] __initdata = { -1, 0, 0, 0, 0, 0 }; |
| 50 | static int gc_nargs_2 __initdata = 0; |
| 51 | module_param_array_named(map2, gc_2, int, &gc_nargs_2, 0); |
| 52 | MODULE_PARM_DESC(map2, "Describers second set of devices"); |
| 53 | |
| 54 | static int gc_3[] __initdata = { -1, 0, 0, 0, 0, 0 }; |
| 55 | static int gc_nargs_3 __initdata = 0; |
| 56 | module_param_array_named(map3, gc_3, int, &gc_nargs_3, 0); |
| 57 | MODULE_PARM_DESC(map3, "Describers third set of devices"); |
| 58 | |
| 59 | __obsolete_setup("gc="); |
| 60 | __obsolete_setup("gc_2="); |
| 61 | __obsolete_setup("gc_3="); |
| 62 | |
| 63 | /* see also gs_psx_delay parameter in PSX support section */ |
| 64 | |
| 65 | #define GC_SNES 1 |
| 66 | #define GC_NES 2 |
| 67 | #define GC_NES4 3 |
| 68 | #define GC_MULTI 4 |
| 69 | #define GC_MULTI2 5 |
| 70 | #define GC_N64 6 |
| 71 | #define GC_PSX 7 |
| 72 | #define GC_DDR 8 |
| 73 | |
| 74 | #define GC_MAX 8 |
| 75 | |
| 76 | #define GC_REFRESH_TIME HZ/100 |
| 77 | |
| 78 | struct gc { |
| 79 | struct pardevice *pd; |
| 80 | struct input_dev dev[5]; |
| 81 | struct timer_list timer; |
| 82 | unsigned char pads[GC_MAX + 1]; |
| 83 | int used; |
| 84 | char phys[5][32]; |
| 85 | }; |
| 86 | |
| 87 | static struct gc *gc_base[3]; |
| 88 | |
| 89 | static int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 }; |
| 90 | |
| 91 | static char *gc_names[] = { NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick", |
| 92 | "Multisystem 2-button joystick", "N64 controller", "PSX controller", |
| 93 | "PSX DDR controller" }; |
| 94 | /* |
| 95 | * N64 support. |
| 96 | */ |
| 97 | |
| 98 | static unsigned char gc_n64_bytes[] = { 0, 1, 13, 15, 14, 12, 10, 11, 2, 3 }; |
| 99 | static short gc_n64_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_TRIGGER, BTN_START }; |
| 100 | |
| 101 | #define GC_N64_LENGTH 32 /* N64 bit length, not including stop bit */ |
| 102 | #define GC_N64_REQUEST_LENGTH 37 /* transmit request sequence is 9 bits long */ |
| 103 | #define GC_N64_DELAY 133 /* delay between transmit request, and response ready (us) */ |
| 104 | #define GC_N64_REQUEST 0x1dd1111111ULL /* the request data command (encoded for 000000011) */ |
| 105 | #define GC_N64_DWS 3 /* delay between write segments (required for sound playback because of ISA DMA) */ |
| 106 | /* GC_N64_DWS > 24 is known to fail */ |
| 107 | #define GC_N64_POWER_W 0xe2 /* power during write (transmit request) */ |
| 108 | #define GC_N64_POWER_R 0xfd /* power during read */ |
| 109 | #define GC_N64_OUT 0x1d /* output bits to the 4 pads */ |
| 110 | /* Reading the main axes of any N64 pad is known to fail if the corresponding bit */ |
| 111 | /* in GC_N64_OUT is pulled low on the output port (by any routine) for more */ |
| 112 | /* than 123 us */ |
| 113 | #define GC_N64_CLOCK 0x02 /* clock bits for read */ |
| 114 | |
| 115 | /* |
| 116 | * gc_n64_read_packet() reads an N64 packet. |
| 117 | * Each pad uses one bit per byte. So all pads connected to this port are read in parallel. |
| 118 | */ |
| 119 | |
| 120 | static void gc_n64_read_packet(struct gc *gc, unsigned char *data) |
| 121 | { |
| 122 | int i; |
| 123 | unsigned long flags; |
| 124 | |
| 125 | /* |
| 126 | * Request the pad to transmit data |
| 127 | */ |
| 128 | |
| 129 | local_irq_save(flags); |
| 130 | for (i = 0; i < GC_N64_REQUEST_LENGTH; i++) { |
| 131 | parport_write_data(gc->pd->port, GC_N64_POWER_W | ((GC_N64_REQUEST >> i) & 1 ? GC_N64_OUT : 0)); |
| 132 | udelay(GC_N64_DWS); |
| 133 | } |
| 134 | local_irq_restore(flags); |
| 135 | |
| 136 | /* |
| 137 | * Wait for the pad response to be loaded into the 33-bit register of the adapter |
| 138 | */ |
| 139 | |
| 140 | udelay(GC_N64_DELAY); |
| 141 | |
| 142 | /* |
| 143 | * Grab data (ignoring the last bit, which is a stop bit) |
| 144 | */ |
| 145 | |
| 146 | for (i = 0; i < GC_N64_LENGTH; i++) { |
| 147 | parport_write_data(gc->pd->port, GC_N64_POWER_R); |
| 148 | data[i] = parport_read_status(gc->pd->port); |
| 149 | parport_write_data(gc->pd->port, GC_N64_POWER_R | GC_N64_CLOCK); |
| 150 | } |
| 151 | |
| 152 | /* |
| 153 | * We must wait 200 ms here for the controller to reinitialize before the next read request. |
| 154 | * No worries as long as gc_read is polled less frequently than this. |
| 155 | */ |
| 156 | |
| 157 | } |
| 158 | |
| 159 | /* |
| 160 | * NES/SNES support. |
| 161 | */ |
| 162 | |
| 163 | #define GC_NES_DELAY 6 /* Delay between bits - 6us */ |
| 164 | #define GC_NES_LENGTH 8 /* The NES pads use 8 bits of data */ |
| 165 | #define GC_SNES_LENGTH 12 /* The SNES true length is 16, but the last 4 bits are unused */ |
| 166 | |
| 167 | #define GC_NES_POWER 0xfc |
| 168 | #define GC_NES_CLOCK 0x01 |
| 169 | #define GC_NES_LATCH 0x02 |
| 170 | |
| 171 | static unsigned char gc_nes_bytes[] = { 0, 1, 2, 3 }; |
| 172 | static unsigned char gc_snes_bytes[] = { 8, 0, 2, 3, 9, 1, 10, 11 }; |
| 173 | static short gc_snes_btn[] = { BTN_A, BTN_B, BTN_SELECT, BTN_START, BTN_X, BTN_Y, BTN_TL, BTN_TR }; |
| 174 | |
| 175 | /* |
| 176 | * gc_nes_read_packet() reads a NES/SNES packet. |
| 177 | * Each pad uses one bit per byte. So all pads connected to |
| 178 | * this port are read in parallel. |
| 179 | */ |
| 180 | |
| 181 | static void gc_nes_read_packet(struct gc *gc, int length, unsigned char *data) |
| 182 | { |
| 183 | int i; |
| 184 | |
| 185 | parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK | GC_NES_LATCH); |
| 186 | udelay(GC_NES_DELAY * 2); |
| 187 | parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK); |
| 188 | |
| 189 | for (i = 0; i < length; i++) { |
| 190 | udelay(GC_NES_DELAY); |
| 191 | parport_write_data(gc->pd->port, GC_NES_POWER); |
| 192 | data[i] = parport_read_status(gc->pd->port) ^ 0x7f; |
| 193 | udelay(GC_NES_DELAY); |
| 194 | parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK); |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | /* |
| 199 | * Multisystem joystick support |
| 200 | */ |
| 201 | |
| 202 | #define GC_MULTI_LENGTH 5 /* Multi system joystick packet length is 5 */ |
| 203 | #define GC_MULTI2_LENGTH 6 /* One more bit for one more button */ |
| 204 | |
| 205 | /* |
| 206 | * gc_multi_read_packet() reads a Multisystem joystick packet. |
| 207 | */ |
| 208 | |
| 209 | static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data) |
| 210 | { |
| 211 | int i; |
| 212 | |
| 213 | for (i = 0; i < length; i++) { |
| 214 | parport_write_data(gc->pd->port, ~(1 << i)); |
| 215 | data[i] = parport_read_status(gc->pd->port) ^ 0x7f; |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | /* |
| 220 | * PSX support |
| 221 | * |
| 222 | * See documentation at: |
| 223 | * http://www.dim.com/~mackys/psxmemcard/ps-eng2.txt |
| 224 | * http://www.gamesx.com/controldata/psxcont/psxcont.htm |
| 225 | * ftp://milano.usal.es/pablo/ |
| 226 | * |
| 227 | */ |
| 228 | |
| 229 | #define GC_PSX_DELAY 25 /* 25 usec */ |
| 230 | #define GC_PSX_LENGTH 8 /* talk to the controller in bits */ |
| 231 | #define GC_PSX_BYTES 6 /* the maximum number of bytes to read off the controller */ |
| 232 | |
| 233 | #define GC_PSX_MOUSE 1 /* Mouse */ |
| 234 | #define GC_PSX_NEGCON 2 /* NegCon */ |
| 235 | #define GC_PSX_NORMAL 4 /* Digital / Analog or Rumble in Digital mode */ |
| 236 | #define GC_PSX_ANALOG 5 /* Analog in Analog mode / Rumble in Green mode */ |
| 237 | #define GC_PSX_RUMBLE 7 /* Rumble in Red mode */ |
| 238 | |
| 239 | #define GC_PSX_CLOCK 0x04 /* Pin 4 */ |
| 240 | #define GC_PSX_COMMAND 0x01 /* Pin 2 */ |
| 241 | #define GC_PSX_POWER 0xf8 /* Pins 5-9 */ |
| 242 | #define GC_PSX_SELECT 0x02 /* Pin 3 */ |
| 243 | |
| 244 | #define GC_PSX_ID(x) ((x) >> 4) /* High nibble is device type */ |
| 245 | #define GC_PSX_LEN(x) (((x) & 0xf) << 1) /* Low nibble is length in bytes/2 */ |
| 246 | |
| 247 | static int gc_psx_delay = GC_PSX_DELAY; |
| 248 | module_param_named(psx_delay, gc_psx_delay, uint, 0); |
| 249 | MODULE_PARM_DESC(psx_delay, "Delay when accessing Sony PSX controller (usecs)"); |
| 250 | |
| 251 | __obsolete_setup("gc_psx_delay="); |
| 252 | |
| 253 | static short gc_psx_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y }; |
| 254 | static short gc_psx_btn[] = { BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y, |
| 255 | BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR }; |
| 256 | static short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 }; |
| 257 | |
| 258 | /* |
| 259 | * gc_psx_command() writes 8bit command and reads 8bit data from |
| 260 | * the psx pad. |
| 261 | */ |
| 262 | |
| 263 | static void gc_psx_command(struct gc *gc, int b, unsigned char data[5]) |
| 264 | { |
| 265 | int i, j, cmd, read; |
| 266 | for (i = 0; i < 5; i++) |
| 267 | data[i] = 0; |
| 268 | |
| 269 | for (i = 0; i < GC_PSX_LENGTH; i++, b >>= 1) { |
| 270 | cmd = (b & 1) ? GC_PSX_COMMAND : 0; |
| 271 | parport_write_data(gc->pd->port, cmd | GC_PSX_POWER); |
| 272 | udelay(gc_psx_delay); |
| 273 | read = parport_read_status(gc->pd->port) ^ 0x80; |
| 274 | for (j = 0; j < 5; j++) |
| 275 | data[j] |= (read & gc_status_bit[j] & (gc->pads[GC_PSX] | gc->pads[GC_DDR])) ? (1 << i) : 0; |
| 276 | parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER); |
| 277 | udelay(gc_psx_delay); |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | /* |
| 282 | * gc_psx_read_packet() reads a whole psx packet and returns |
| 283 | * device identifier code. |
| 284 | */ |
| 285 | |
| 286 | static void gc_psx_read_packet(struct gc *gc, unsigned char data[5][GC_PSX_BYTES], unsigned char id[5]) |
| 287 | { |
| 288 | int i, j, max_len = 0; |
| 289 | unsigned long flags; |
| 290 | unsigned char data2[5]; |
| 291 | |
| 292 | parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER); /* Select pad */ |
| 293 | udelay(gc_psx_delay); |
| 294 | parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER); /* Deselect, begin command */ |
| 295 | udelay(gc_psx_delay); |
| 296 | |
| 297 | local_irq_save(flags); |
| 298 | |
| 299 | gc_psx_command(gc, 0x01, data2); /* Access pad */ |
| 300 | gc_psx_command(gc, 0x42, id); /* Get device ids */ |
| 301 | gc_psx_command(gc, 0, data2); /* Dump status */ |
| 302 | |
| 303 | for (i =0; i < 5; i++) /* Find the longest pad */ |
| 304 | if((gc_status_bit[i] & (gc->pads[GC_PSX] | gc->pads[GC_DDR])) |
| 305 | && (GC_PSX_LEN(id[i]) > max_len) |
| 306 | && (GC_PSX_LEN(id[i]) <= GC_PSX_BYTES)) |
| 307 | max_len = GC_PSX_LEN(id[i]); |
| 308 | |
| 309 | for (i = 0; i < max_len; i++) { /* Read in all the data */ |
| 310 | gc_psx_command(gc, 0, data2); |
| 311 | for (j = 0; j < 5; j++) |
| 312 | data[j][i] = data2[j]; |
| 313 | } |
| 314 | |
| 315 | local_irq_restore(flags); |
| 316 | |
| 317 | parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER); |
| 318 | |
| 319 | for(i = 0; i < 5; i++) /* Set id's to the real value */ |
| 320 | id[i] = GC_PSX_ID(id[i]); |
| 321 | } |
| 322 | |
| 323 | /* |
| 324 | * gc_timer() reads and analyzes console pads data. |
| 325 | */ |
| 326 | |
| 327 | #define GC_MAX_LENGTH GC_N64_LENGTH |
| 328 | |
| 329 | static void gc_timer(unsigned long private) |
| 330 | { |
| 331 | struct gc *gc = (void *) private; |
| 332 | struct input_dev *dev = gc->dev; |
| 333 | unsigned char data[GC_MAX_LENGTH]; |
| 334 | unsigned char data_psx[5][GC_PSX_BYTES]; |
| 335 | int i, j, s; |
| 336 | |
| 337 | /* |
| 338 | * N64 pads - must be read first, any read confuses them for 200 us |
| 339 | */ |
| 340 | |
| 341 | if (gc->pads[GC_N64]) { |
| 342 | |
| 343 | gc_n64_read_packet(gc, data); |
| 344 | |
| 345 | for (i = 0; i < 5; i++) { |
| 346 | |
| 347 | s = gc_status_bit[i]; |
| 348 | |
| 349 | if (s & gc->pads[GC_N64] & ~(data[8] | data[9])) { |
| 350 | |
| 351 | signed char axes[2]; |
| 352 | axes[0] = axes[1] = 0; |
| 353 | |
| 354 | for (j = 0; j < 8; j++) { |
| 355 | if (data[23 - j] & s) axes[0] |= 1 << j; |
| 356 | if (data[31 - j] & s) axes[1] |= 1 << j; |
| 357 | } |
| 358 | |
| 359 | input_report_abs(dev + i, ABS_X, axes[0]); |
| 360 | input_report_abs(dev + i, ABS_Y, -axes[1]); |
| 361 | |
| 362 | input_report_abs(dev + i, ABS_HAT0X, !(s & data[6]) - !(s & data[7])); |
| 363 | input_report_abs(dev + i, ABS_HAT0Y, !(s & data[4]) - !(s & data[5])); |
| 364 | |
| 365 | for (j = 0; j < 10; j++) |
| 366 | input_report_key(dev + i, gc_n64_btn[j], s & data[gc_n64_bytes[j]]); |
| 367 | |
| 368 | input_sync(dev + i); |
| 369 | } |
| 370 | } |
| 371 | } |
| 372 | |
| 373 | /* |
| 374 | * NES and SNES pads |
| 375 | */ |
| 376 | |
| 377 | if (gc->pads[GC_NES] || gc->pads[GC_SNES]) { |
| 378 | |
| 379 | gc_nes_read_packet(gc, gc->pads[GC_SNES] ? GC_SNES_LENGTH : GC_NES_LENGTH, data); |
| 380 | |
| 381 | for (i = 0; i < 5; i++) { |
| 382 | |
| 383 | s = gc_status_bit[i]; |
| 384 | |
| 385 | if (s & (gc->pads[GC_NES] | gc->pads[GC_SNES])) { |
| 386 | input_report_abs(dev + i, ABS_X, !(s & data[6]) - !(s & data[7])); |
| 387 | input_report_abs(dev + i, ABS_Y, !(s & data[4]) - !(s & data[5])); |
| 388 | } |
| 389 | |
| 390 | if (s & gc->pads[GC_NES]) |
| 391 | for (j = 0; j < 4; j++) |
| 392 | input_report_key(dev + i, gc_snes_btn[j], s & data[gc_nes_bytes[j]]); |
| 393 | |
| 394 | if (s & gc->pads[GC_SNES]) |
| 395 | for (j = 0; j < 8; j++) |
| 396 | input_report_key(dev + i, gc_snes_btn[j], s & data[gc_snes_bytes[j]]); |
| 397 | |
| 398 | input_sync(dev + i); |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | /* |
| 403 | * Multi and Multi2 joysticks |
| 404 | */ |
| 405 | |
| 406 | if (gc->pads[GC_MULTI] || gc->pads[GC_MULTI2]) { |
| 407 | |
| 408 | gc_multi_read_packet(gc, gc->pads[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH, data); |
| 409 | |
| 410 | for (i = 0; i < 5; i++) { |
| 411 | |
| 412 | s = gc_status_bit[i]; |
| 413 | |
| 414 | if (s & (gc->pads[GC_MULTI] | gc->pads[GC_MULTI2])) { |
| 415 | input_report_abs(dev + i, ABS_X, !(s & data[2]) - !(s & data[3])); |
| 416 | input_report_abs(dev + i, ABS_Y, !(s & data[0]) - !(s & data[1])); |
| 417 | input_report_key(dev + i, BTN_TRIGGER, s & data[4]); |
| 418 | } |
| 419 | |
| 420 | if (s & gc->pads[GC_MULTI2]) |
| 421 | input_report_key(dev + i, BTN_THUMB, s & data[5]); |
| 422 | |
| 423 | input_sync(dev + i); |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | /* |
| 428 | * PSX controllers |
| 429 | */ |
| 430 | |
| 431 | if (gc->pads[GC_PSX] || gc->pads[GC_DDR]) { |
| 432 | |
| 433 | gc_psx_read_packet(gc, data_psx, data); |
| 434 | |
| 435 | for (i = 0; i < 5; i++) { |
Dmitry Torokhov | ab0c344 | 2005-05-29 02:28:55 -0500 | [diff] [blame^] | 436 | switch (data[i]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | |
| 438 | case GC_PSX_RUMBLE: |
| 439 | |
| 440 | input_report_key(dev + i, BTN_THUMBL, ~data_psx[i][0] & 0x04); |
| 441 | input_report_key(dev + i, BTN_THUMBR, ~data_psx[i][0] & 0x02); |
| 442 | |
| 443 | case GC_PSX_NEGCON: |
| 444 | case GC_PSX_ANALOG: |
| 445 | |
| 446 | if(gc->pads[GC_DDR] & gc_status_bit[i]) { |
| 447 | for(j = 0; j < 4; j++) |
| 448 | input_report_key(dev + i, gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j)); |
| 449 | } else { |
| 450 | for (j = 0; j < 4; j++) |
| 451 | input_report_abs(dev + i, gc_psx_abs[j+2], data_psx[i][j + 2]); |
| 452 | |
| 453 | input_report_abs(dev + i, ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128); |
| 454 | input_report_abs(dev + i, ABS_Y, 128 + !(data_psx[i][0] & 0x40) * 127 - !(data_psx[i][0] & 0x10) * 128); |
| 455 | } |
| 456 | |
| 457 | for (j = 0; j < 8; j++) |
| 458 | input_report_key(dev + i, gc_psx_btn[j], ~data_psx[i][1] & (1 << j)); |
| 459 | |
| 460 | input_report_key(dev + i, BTN_START, ~data_psx[i][0] & 0x08); |
| 461 | input_report_key(dev + i, BTN_SELECT, ~data_psx[i][0] & 0x01); |
| 462 | |
| 463 | input_sync(dev + i); |
| 464 | |
| 465 | break; |
| 466 | |
| 467 | case GC_PSX_NORMAL: |
| 468 | if(gc->pads[GC_DDR] & gc_status_bit[i]) { |
| 469 | for(j = 0; j < 4; j++) |
| 470 | input_report_key(dev + i, gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j)); |
| 471 | } else { |
| 472 | input_report_abs(dev + i, ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128); |
| 473 | input_report_abs(dev + i, ABS_Y, 128 + !(data_psx[i][0] & 0x40) * 127 - !(data_psx[i][0] & 0x10) * 128); |
| 474 | |
| 475 | /* for some reason if the extra axes are left unset they drift */ |
| 476 | /* for (j = 0; j < 4; j++) |
| 477 | input_report_abs(dev + i, gc_psx_abs[j+2], 128); |
| 478 | * This needs to be debugged properly, |
| 479 | * maybe fuzz processing needs to be done in input_sync() |
| 480 | * --vojtech |
| 481 | */ |
| 482 | } |
| 483 | |
| 484 | for (j = 0; j < 8; j++) |
| 485 | input_report_key(dev + i, gc_psx_btn[j], ~data_psx[i][1] & (1 << j)); |
| 486 | |
| 487 | input_report_key(dev + i, BTN_START, ~data_psx[i][0] & 0x08); |
| 488 | input_report_key(dev + i, BTN_SELECT, ~data_psx[i][0] & 0x01); |
| 489 | |
| 490 | input_sync(dev + i); |
| 491 | |
| 492 | break; |
| 493 | |
| 494 | case 0: /* not a pad, ignore */ |
| 495 | break; |
| 496 | } |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME); |
| 501 | } |
| 502 | |
| 503 | static int gc_open(struct input_dev *dev) |
| 504 | { |
| 505 | struct gc *gc = dev->private; |
| 506 | if (!gc->used++) { |
| 507 | parport_claim(gc->pd); |
| 508 | parport_write_control(gc->pd->port, 0x04); |
| 509 | mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME); |
| 510 | } |
| 511 | return 0; |
| 512 | } |
| 513 | |
| 514 | static void gc_close(struct input_dev *dev) |
| 515 | { |
| 516 | struct gc *gc = dev->private; |
| 517 | if (!--gc->used) { |
| 518 | del_timer(&gc->timer); |
| 519 | parport_write_control(gc->pd->port, 0x00); |
| 520 | parport_release(gc->pd); |
| 521 | } |
| 522 | } |
| 523 | |
| 524 | static struct gc __init *gc_probe(int *config, int nargs) |
| 525 | { |
| 526 | struct gc *gc; |
| 527 | struct parport *pp; |
| 528 | int i, j; |
| 529 | |
| 530 | if (config[0] < 0) |
| 531 | return NULL; |
| 532 | |
| 533 | if (nargs < 2) { |
| 534 | printk(KERN_ERR "gamecon.c: at least one device must be specified\n"); |
| 535 | return NULL; |
| 536 | } |
| 537 | |
| 538 | pp = parport_find_number(config[0]); |
| 539 | |
| 540 | if (!pp) { |
| 541 | printk(KERN_ERR "gamecon.c: no such parport\n"); |
| 542 | return NULL; |
| 543 | } |
| 544 | |
| 545 | if (!(gc = kmalloc(sizeof(struct gc), GFP_KERNEL))) { |
| 546 | parport_put_port(pp); |
| 547 | return NULL; |
| 548 | } |
| 549 | memset(gc, 0, sizeof(struct gc)); |
| 550 | |
| 551 | gc->pd = parport_register_device(pp, "gamecon", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL); |
| 552 | |
| 553 | parport_put_port(pp); |
| 554 | |
| 555 | if (!gc->pd) { |
| 556 | printk(KERN_ERR "gamecon.c: parport busy already - lp.o loaded?\n"); |
| 557 | kfree(gc); |
| 558 | return NULL; |
| 559 | } |
| 560 | |
| 561 | parport_claim(gc->pd); |
| 562 | |
| 563 | init_timer(&gc->timer); |
| 564 | gc->timer.data = (long) gc; |
| 565 | gc->timer.function = gc_timer; |
| 566 | |
| 567 | for (i = 0; i < nargs - 1; i++) { |
| 568 | |
| 569 | if (!config[i + 1]) |
| 570 | continue; |
| 571 | |
| 572 | if (config[i + 1] < 1 || config[i + 1] > GC_MAX) { |
| 573 | printk(KERN_WARNING "gamecon.c: Pad type %d unknown\n", config[i + 1]); |
| 574 | continue; |
| 575 | } |
| 576 | |
| 577 | gc->dev[i].private = gc; |
| 578 | gc->dev[i].open = gc_open; |
| 579 | gc->dev[i].close = gc_close; |
| 580 | |
| 581 | gc->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); |
| 582 | |
| 583 | for (j = 0; j < 2; j++) { |
| 584 | set_bit(ABS_X + j, gc->dev[i].absbit); |
| 585 | gc->dev[i].absmin[ABS_X + j] = -1; |
| 586 | gc->dev[i].absmax[ABS_X + j] = 1; |
| 587 | } |
| 588 | |
| 589 | gc->pads[0] |= gc_status_bit[i]; |
| 590 | gc->pads[config[i + 1]] |= gc_status_bit[i]; |
| 591 | |
| 592 | switch(config[i + 1]) { |
| 593 | |
| 594 | case GC_N64: |
| 595 | for (j = 0; j < 10; j++) |
| 596 | set_bit(gc_n64_btn[j], gc->dev[i].keybit); |
| 597 | |
| 598 | for (j = 0; j < 2; j++) { |
| 599 | set_bit(ABS_X + j, gc->dev[i].absbit); |
| 600 | gc->dev[i].absmin[ABS_X + j] = -127; |
| 601 | gc->dev[i].absmax[ABS_X + j] = 126; |
| 602 | gc->dev[i].absflat[ABS_X + j] = 2; |
| 603 | set_bit(ABS_HAT0X + j, gc->dev[i].absbit); |
| 604 | gc->dev[i].absmin[ABS_HAT0X + j] = -1; |
| 605 | gc->dev[i].absmax[ABS_HAT0X + j] = 1; |
| 606 | } |
| 607 | |
| 608 | break; |
| 609 | |
| 610 | case GC_SNES: |
| 611 | for (j = 4; j < 8; j++) |
| 612 | set_bit(gc_snes_btn[j], gc->dev[i].keybit); |
| 613 | case GC_NES: |
| 614 | for (j = 0; j < 4; j++) |
| 615 | set_bit(gc_snes_btn[j], gc->dev[i].keybit); |
| 616 | break; |
| 617 | |
| 618 | case GC_MULTI2: |
| 619 | set_bit(BTN_THUMB, gc->dev[i].keybit); |
| 620 | case GC_MULTI: |
| 621 | set_bit(BTN_TRIGGER, gc->dev[i].keybit); |
| 622 | break; |
| 623 | |
| 624 | case GC_PSX: |
| 625 | case GC_DDR: |
| 626 | if(config[i + 1] == GC_DDR) { |
| 627 | for (j = 0; j < 4; j++) |
| 628 | set_bit(gc_psx_ddr_btn[j], gc->dev[i].keybit); |
| 629 | } else { |
| 630 | for (j = 0; j < 6; j++) { |
| 631 | set_bit(gc_psx_abs[j], gc->dev[i].absbit); |
| 632 | gc->dev[i].absmin[gc_psx_abs[j]] = 4; |
| 633 | gc->dev[i].absmax[gc_psx_abs[j]] = 252; |
| 634 | gc->dev[i].absflat[gc_psx_abs[j]] = 2; |
| 635 | } |
| 636 | } |
| 637 | |
| 638 | for (j = 0; j < 12; j++) |
| 639 | set_bit(gc_psx_btn[j], gc->dev[i].keybit); |
| 640 | |
| 641 | break; |
| 642 | } |
| 643 | |
| 644 | sprintf(gc->phys[i], "%s/input%d", gc->pd->port->name, i); |
| 645 | |
| 646 | gc->dev[i].name = gc_names[config[i + 1]]; |
| 647 | gc->dev[i].phys = gc->phys[i]; |
| 648 | gc->dev[i].id.bustype = BUS_PARPORT; |
| 649 | gc->dev[i].id.vendor = 0x0001; |
| 650 | gc->dev[i].id.product = config[i + 1]; |
| 651 | gc->dev[i].id.version = 0x0100; |
| 652 | } |
| 653 | |
| 654 | parport_release(gc->pd); |
| 655 | |
| 656 | if (!gc->pads[0]) { |
| 657 | parport_unregister_device(gc->pd); |
| 658 | kfree(gc); |
| 659 | return NULL; |
| 660 | } |
| 661 | |
| 662 | for (i = 0; i < 5; i++) |
| 663 | if (gc->pads[0] & gc_status_bit[i]) { |
| 664 | input_register_device(gc->dev + i); |
| 665 | printk(KERN_INFO "input: %s on %s\n", gc->dev[i].name, gc->pd->port->name); |
| 666 | } |
| 667 | |
| 668 | return gc; |
| 669 | } |
| 670 | |
| 671 | static int __init gc_init(void) |
| 672 | { |
| 673 | gc_base[0] = gc_probe(gc, gc_nargs); |
| 674 | gc_base[1] = gc_probe(gc_2, gc_nargs_2); |
| 675 | gc_base[2] = gc_probe(gc_3, gc_nargs_3); |
| 676 | |
| 677 | if (gc_base[0] || gc_base[1] || gc_base[2]) |
| 678 | return 0; |
| 679 | |
| 680 | return -ENODEV; |
| 681 | } |
| 682 | |
| 683 | static void __exit gc_exit(void) |
| 684 | { |
| 685 | int i, j; |
| 686 | |
| 687 | for (i = 0; i < 3; i++) |
| 688 | if (gc_base[i]) { |
| 689 | for (j = 0; j < 5; j++) |
| 690 | if (gc_base[i]->pads[0] & gc_status_bit[j]) |
| 691 | input_unregister_device(gc_base[i]->dev + j); |
| 692 | parport_unregister_device(gc_base[i]->pd); |
| 693 | } |
| 694 | } |
| 695 | |
| 696 | module_init(gc_init); |
| 697 | module_exit(gc_exit); |