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1 Linux Joystick parport drivers v2.0
2 (c) 1998-2000 Vojtech Pavlik <vojtech@ucw.cz>
3 (c) 1998 Andree Borrmann <a.borrmann@tu-bs.de>
4 Sponsored by SuSE
5 ----------------------------------------------------------------------------
7 0. Disclaimer
8 ~~~~~~~~~~~~~
9 Any information in this file is provided as-is, without any guarantee that
10 it will be true. So, use it at your own risk. The possible damages that can
11 happen include burning your parallel port, and/or the sticks and joystick
12 and maybe even more. Like when a lightning kills you it is not our problem.
14 1. Intro
15 ~~~~~~~~
16 The joystick parport drivers are used for joysticks and gamepads not
17 originally designed for PCs and other computers Linux runs on. Because of
18 that, PCs usually lack the right ports to connect these devices to. Parallel
19 port, because of its ability to change single bits at will, and providing
20 both output and input bits is the most suitable port on the PC for
21 connecting such devices.
23 2. Devices supported
24 ~~~~~~~~~~~~~~~~~~~~
25 Many console and 8-bit computer gamepads and joysticks are supported. The
26 following subsections discuss usage of each.
28 2.1 NES and SNES
29 ~~~~~~~~~~~~~~~~
30 The Nintendo Entertainment System and Super Nintendo Entertainment System
31 gamepads are widely available, and easy to get. Also, they are quite easy to
32 connect to a PC, and don't need much processing speed (108 us for NES and
33 165 us for SNES, compared to about 1000 us for PC gamepads) to communicate
34 with them.
36 All NES and SNES use the same synchronous serial protocol, clocked from
37 the computer's side (and thus timing insensitive). To allow up to 5 NES
38 and/or SNES gamepads and/or SNES mice connected to the parallel port at once,
39 the output lines of the parallel port are shared, while one of 5 available
40 input lines is assigned to each gamepad.
42 This protocol is handled by the gamecon.c driver, so that's the one
43 you'll use for NES, SNES gamepads and SNES mice.
45 The main problem with PC parallel ports is that they don't have +5V power
46 source on any of their pins. So, if you want a reliable source of power
47 for your pads, use either keyboard or joystick port, and make a pass-through
48 cable. You can also pull the power directly from the power supply (the red
49 wire is +5V).
51 If you want to use the parallel port only, you can take the power is from
52 some data pin. For most gamepad and parport implementations only one pin is
53 needed, and I'd recommend pin 9 for that, the highest data bit. On the other
54 hand, if you are not planning to use anything else than NES / SNES on the
55 port, anything between and including pin 4 and pin 9 will work.
57 (pin 9) -----> Power
59 Unfortunately, there are pads that need a lot more of power, and parallel
60 ports that can't give much current through the data pins. If this is your
61 case, you'll need to use diodes (as a prevention of destroying your parallel
62 port), and combine the currents of two or more data bits together.
64 Diodes
65 (pin 9) ----|>|-------+------> Power
66 |
67 (pin 8) ----|>|-------+
68 |
69 (pin 7) ----|>|-------+
70 |
71 <and so on> :
72 |
73 (pin 4) ----|>|-------+
75 Ground is quite easy. On PC's parallel port the ground is on any of the
76 pins from pin 18 to pin 25. So use any pin of these you like for the ground.
78 (pin 18) -----> Ground
80 NES and SNES pads have two input bits, Clock and Latch, which drive the
81 serial transfer. These are connected to pins 2 and 3 of the parallel port,
82 respectively.
84 (pin 2) -----> Clock
85 (pin 3) -----> Latch
87 And the last thing is the NES / SNES data wire. Only that isn't shared and
88 each pad needs its own data pin. The parallel port pins are:
90 (pin 10) -----> Pad 1 data
91 (pin 11) -----> Pad 2 data
92 (pin 12) -----> Pad 3 data
93 (pin 13) -----> Pad 4 data
94 (pin 15) -----> Pad 5 data
96 Note that pin 14 is not used, since it is not an input pin on the parallel
97 port.
99 This is everything you need on the PC's side of the connection, now on to
100 the gamepads side. The NES and SNES have different connectors. Also, there
101 are quite a lot of NES clones, and because Nintendo used proprietary
102 connectors for their machines, the cloners couldn't and used standard D-Cannon
103 connectors. Anyway, if you've got a gamepad, and it has buttons A, B, Turbo
104 A, Turbo B, Select and Start, and is connected through 5 wires, then it is
105 either a NES or NES clone and will work with this connection. SNES gamepads
106 also use 5 wires, but have more buttons. They will work as well, of course.
108 Pinout for NES gamepads Pinout for SNES gamepads and mice
110 +----> Power +-----------------------\
111 | 7 | o o o o | x x o | 1
112 5 +---------+ 7 +-----------------------/
113 | x x o \ | | | | |
114 | o o o o | | | | | +-> Ground
115 4 +------------+ 1 | | | +------------> Data
116 | | | | | | +---------------> Latch
117 | | | +-> Ground | +------------------> Clock
118 | | +----> Clock +---------------------> Power
119 | +-------> Latch
120 +----------> Data
122 Pinout for NES clone (db9) gamepads Pinout for NES clone (db15) gamepads
124 +---------> Clock +-----------------> Data
125 | +-------> Latch | +---> Ground
126 | | +-----> Data | |
127 | | | ___________________
128 _____________ 8 \ o x x x x x x o / 1
129 5 \ x o o o x / 1 \ o x x o x x o /
130 \ x o x o / 15 `~~~~~~~~~~~~~' 9
131 9 `~~~~~~~' 6 | | |
132 | | | | +----> Clock
133 | +----> Power | +----------> Latch
134 +--------> Ground +----------------> Power
136 2.2 Multisystem joysticks
137 ~~~~~~~~~~~~~~~~~~~~~~~~~
138 In the era of 8-bit machines, there was something like de-facto standard
139 for joystick ports. They were all digital, and all used D-Cannon 9 pin
140 connectors (db9). Because of that, a single joystick could be used without
141 hassle on Atari (130, 800XE, 800XL, 2600, 7200), Amiga, Commodore C64,
142 Amstrad CPC, Sinclair ZX Spectrum and many other machines. That's why these
143 joysticks are called "Multisystem".
145 Now their pinout:
147 +---------> Right
148 | +-------> Left
149 | | +-----> Down
150 | | | +---> Up
151 | | | |
152 _____________
153 5 \ x o o o o / 1
154 \ x o x o /
155 9 `~~~~~~~' 6
156 | |
157 | +----> Button
158 +--------> Ground
160 However, as time passed, extensions to this standard developed, and these
161 were not compatible with each other:
164 Atari 130, 800/XL/XE MSX
166 +-----------> Power
167 +---------> Right | +---------> Right
168 | +-------> Left | | +-------> Left
169 | | +-----> Down | | | +-----> Down
170 | | | +---> Up | | | | +---> Up
171 | | | | | | | | |
172 _____________ _____________
173 5 \ x o o o o / 1 5 \ o o o o o / 1
174 \ x o o o / \ o o o o /
175 9 `~~~~~~~' 6 9 `~~~~~~~' 6
176 | | | | | | |
177 | | +----> Button | | | +----> Button 1
178 | +------> Power | | +------> Button 2
179 +--------> Ground | +--------> Output 3
180 +----------> Ground
182 Amstrad CPC Commodore C64
184 +-----------> Analog Y
185 +---------> Right | +---------> Right
186 | +-------> Left | | +-------> Left
187 | | +-----> Down | | | +-----> Down
188 | | | +---> Up | | | | +---> Up
189 | | | | | | | | |
190 _____________ _____________
191 5 \ x o o o o / 1 5 \ o o o o o / 1
192 \ x o o o / \ o o o o /
193 9 `~~~~~~~' 6 9 `~~~~~~~' 6
194 | | | | | | |
195 | | +----> Button 1 | | | +----> Button
196 | +------> Button 2 | | +------> Power
197 +--------> Ground | +--------> Ground
198 +----------> Analog X
200 Sinclair Spectrum +2A/+3 Amiga 1200
202 +-----------> Up +-----------> Button 3
203 | +---------> Fire | +---------> Right
204 | | | | +-------> Left
205 | | +-----> Ground | | | +-----> Down
206 | | | | | | | +---> Up
207 | | | | | | | |
208 _____________ _____________
209 5 \ o o x o x / 1 5 \ o o o o o / 1
210 \ o o o o / \ o o o o /
211 9 `~~~~~~~' 6 9 `~~~~~~~' 6
212 | | | | | | | |
213 | | | +----> Right | | | +----> Button 1
214 | | +------> Left | | +------> Power
215 | +--------> Ground | +--------> Ground
216 +----------> Down +----------> Button 2
218 And there were many others.
220 2.2.1 Multisystem joysticks using db9.c
221 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
222 For the Multisystem joysticks, and their derivatives, the db9.c driver
223 was written. It allows only one joystick / gamepad per parallel port, but
224 the interface is easy to build and works with almost anything.
226 For the basic 1-button Multisystem joystick you connect its wires to the
227 parallel port like this:
229 (pin 1) -----> Power
230 (pin 18) -----> Ground
232 (pin 2) -----> Up
233 (pin 3) -----> Down
234 (pin 4) -----> Left
235 (pin 5) -----> Right
236 (pin 6) -----> Button 1
238 However, if the joystick is switch based (eg. clicks when you move it),
239 you might or might not, depending on your parallel port, need 10 kOhm pullup
240 resistors on each of the direction and button signals, like this:
242 (pin 2) ------------+------> Up
243 Resistor |
244 (pin 1) --[10kOhm]--+
246 Try without, and if it doesn't work, add them. For TTL based joysticks /
247 gamepads the pullups are not needed.
249 For joysticks with two buttons you connect the second button to pin 7 on
250 the parallel port.
252 (pin 7) -----> Button 2
254 And that's it.
256 On a side note, if you have already built a different adapter for use with
257 the digital joystick driver 0.8.0.2, this is also supported by the db9.c
258 driver, as device type 8. (See section 3.2)
260 2.2.2 Multisystem joysticks using gamecon.c
261 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
262 For some people just one joystick per parallel port is not enough, and/or
263 want to use them on one parallel port together with NES/SNES/PSX pads. This is
264 possible using the gamecon.c. It supports up to 5 devices of the above types,
265 including 1 and 2 buttons Multisystem joysticks.
267 However, there is nothing for free. To allow more sticks to be used at
268 once, you need the sticks to be purely switch based (that is non-TTL), and
269 not to need power. Just a plain simple six switches inside. If your
270 joystick can do more (eg. turbofire) you'll need to disable it totally first
271 if you want to use gamecon.c.
273 Also, the connection is a bit more complex. You'll need a bunch of diodes,
274 and one pullup resistor. First, you connect the Directions and the button
275 the same as for db9, however with the diodes inbetween.
277 Diodes
278 (pin 2) -----|<|----> Up
279 (pin 3) -----|<|----> Down
280 (pin 4) -----|<|----> Left
281 (pin 5) -----|<|----> Right
282 (pin 6) -----|<|----> Button 1
284 For two button sticks you also connect the other button.
286 (pin 7) -----|<|----> Button 2
288 And finally, you connect the Ground wire of the joystick, like done in
289 this little schematic to Power and Data on the parallel port, as described
290 for the NES / SNES pads in section 2.1 of this file - that is, one data pin
291 for each joystick. The power source is shared.
293 Data ------------+-----> Ground
294 Resistor |
295 Power --[10kOhm]--+
297 And that's all, here we go!
299 2.2.3 Multisystem joysticks using turbografx.c
300 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
301 The TurboGraFX interface, designed by
303 Steffen Schwenke <schwenke@burg-halle.de>
305 allows up to 7 Multisystem joysticks connected to the parallel port. In
306 Steffen's version, there is support for up to 5 buttons per joystick. However,
307 since this doesn't work reliably on all parallel ports, the turbografx.c driver
308 supports only one button per joystick. For more information on how to build the
309 interface, see
311 http://www2.burg-halle.de/~schwenke/parport.html
313 2.3 Sony Playstation
314 ~~~~~~~~~~~~~~~~~~~~
316 The PSX controller is supported by the gamecon.c. Pinout of the PSX
317 controller (compatible with DirectPadPro):
319 +---------+---------+---------+
320 9 | o o o | o o o | o o o | 1 parallel
321 \________|_________|________/ port pins
322 | | | | | |
323 | | | | | +--------> Clock --- (4)
324 | | | | +------------> Select --- (3)
325 | | | +---------------> Power --- (5-9)
326 | | +------------------> Ground --- (18-25)
327 | +-------------------------> Command --- (2)
328 +----------------------------> Data --- (one of 10,11,12,13,15)
330 The driver supports these controllers:
332 * Standard PSX Pad
333 * NegCon PSX Pad
334 * Analog PSX Pad (red mode)
335 * Analog PSX Pad (green mode)
336 * PSX Rumble Pad
337 * PSX DDR Pad
339 2.4 Sega
340 ~~~~~~~~
341 All the Sega controllers are more or less based on the standard 2-button
342 Multisystem joystick. However, since they don't use switches and use TTL
343 logic, the only driver usable with them is the db9.c driver.
345 2.4.1 Sega Master System
346 ~~~~~~~~~~~~~~~~~~~~~~~~
347 The SMS gamepads are almost exactly the same as normal 2-button
348 Multisystem joysticks. Set the driver to Multi2 mode, use the corresponding
349 parallel port pins, and the following schematic:
351 +-----------> Power
352 | +---------> Right
353 | | +-------> Left
354 | | | +-----> Down
355 | | | | +---> Up
356 | | | | |
357 _____________
358 5 \ o o o o o / 1
359 \ o o x o /
360 9 `~~~~~~~' 6
361 | | |
362 | | +----> Button 1
363 | +--------> Ground
364 +----------> Button 2
366 2.4.2 Sega Genesis aka MegaDrive
367 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
368 The Sega Genesis (in Europe sold as Sega MegaDrive) pads are an extension
369 to the Sega Master System pads. They use more buttons (3+1, 5+1, 6+1). Use
370 the following schematic:
372 +-----------> Power
373 | +---------> Right
374 | | +-------> Left
375 | | | +-----> Down
376 | | | | +---> Up
377 | | | | |
378 _____________
379 5 \ o o o o o / 1
380 \ o o o o /
381 9 `~~~~~~~' 6
382 | | | |
383 | | | +----> Button 1
384 | | +------> Select
385 | +--------> Ground
386 +----------> Button 2
388 The Select pin goes to pin 14 on the parallel port.
390 (pin 14) -----> Select
392 The rest is the same as for Multi2 joysticks using db9.c
394 2.4.3 Sega Saturn
395 ~~~~~~~~~~~~~~~~~
396 Sega Saturn has eight buttons, and to transfer that, without hacks like
397 Genesis 6 pads use, it needs one more select pin. Anyway, it is still
398 handled by the db9.c driver. Its pinout is very different from anything
399 else. Use this schematic:
401 +-----------> Select 1
402 | +---------> Power
403 | | +-------> Up
404 | | | +-----> Down
405 | | | | +---> Ground
406 | | | | |
407 _____________
408 5 \ o o o o o / 1
409 \ o o o o /
410 9 `~~~~~~~' 6
411 | | | |
412 | | | +----> Select 2
413 | | +------> Right
414 | +--------> Left
415 +----------> Power
417 Select 1 is pin 14 on the parallel port, Select 2 is pin 16 on the
418 parallel port.
420 (pin 14) -----> Select 1
421 (pin 16) -----> Select 2
423 The other pins (Up, Down, Right, Left, Power, Ground) are the same as for
424 Multi joysticks using db9.c
426 3. The drivers
427 ~~~~~~~~~~~~~~
428 There are three drivers for the parallel port interfaces. Each, as
429 described above, allows to connect a different group of joysticks and pads.
430 Here are described their command lines:
432 3.1 gamecon.c
433 ~~~~~~~~~~~~~
434 Using gamecon.c you can connect up to five devices to one parallel port. It
435 uses the following kernel/module command line:
437 gamecon.map=port,pad1,pad2,pad3,pad4,pad5
439 Where 'port' the number of the parport interface (eg. 0 for parport0).
441 And 'pad1' to 'pad5' are pad types connected to different data input pins
442 (10,11,12,13,15), as described in section 2.1 of this file.
444 The types are:
446 Type | Joystick/Pad
447 --------------------
448 0 | None
449 1 | SNES pad
450 2 | NES pad
451 4 | Multisystem 1-button joystick
452 5 | Multisystem 2-button joystick
453 6 | N64 pad
454 7 | Sony PSX controller
455 8 | Sony PSX DDR controller
456 9 | SNES mouse
458 The exact type of the PSX controller type is autoprobed when used, so
459 hot swapping should work (but is not recommended).
461 Should you want to use more than one of parallel ports at once, you can use
462 gamecon.map2 and gamecon.map3 as additional command line parameters for two
463 more parallel ports.
465 There are two options specific to PSX driver portion. gamecon.psx_delay sets
466 the command delay when talking to the controllers. The default of 25 should
467 work but you can try lowering it for better performance. If your pads don't
468 respond try raising it until they work. Setting the type to 8 allows the
469 driver to be used with Dance Dance Revolution or similar games. Arrow keys are
470 registered as key presses instead of X and Y axes.
472 3.2 db9.c
473 ~~~~~~~~~
474 Apart from making an interface, there is nothing difficult on using the
475 db9.c driver. It uses the following kernel/module command line:
477 db9.dev=port,type
479 Where 'port' is the number of the parport interface (eg. 0 for parport0).
481 Caveat here: This driver only works on bidirectional parallel ports. If
482 your parallel port is recent enough, you should have no trouble with this.
483 Old parallel ports may not have this feature.
485 'Type' is the type of joystick or pad attached:
487 Type | Joystick/Pad
488 --------------------
489 0 | None
490 1 | Multisystem 1-button joystick
491 2 | Multisystem 2-button joystick
492 3 | Genesis pad (3+1 buttons)
493 5 | Genesis pad (5+1 buttons)
494 6 | Genesis pad (6+2 buttons)
495 7 | Saturn pad (8 buttons)
496 8 | Multisystem 1-button joystick (v0.8.0.2 pin-out)
497 9 | Two Multisystem 1-button joysticks (v0.8.0.2 pin-out)
498 10 | Amiga CD32 pad
500 Should you want to use more than one of these joysticks/pads at once, you
501 can use db9.dev2 and db9.dev3 as additional command line parameters for two
502 more joysticks/pads.
504 3.3 turbografx.c
505 ~~~~~~~~~~~~~~~~
506 The turbografx.c driver uses a very simple kernel/module command line:
508 turbografx.map=port,js1,js2,js3,js4,js5,js6,js7
510 Where 'port' is the number of the parport interface (eg. 0 for parport0).
512 'jsX' is the number of buttons the Multisystem joysticks connected to the
513 interface ports 1-7 have. For a standard multisystem joystick, this is 1.
515 Should you want to use more than one of these interfaces at once, you can
516 use turbografx.map2 and turbografx.map3 as additional command line parameters
517 for two more interfaces.
519 3.4 PC parallel port pinout
520 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
521 .----------------------------------------.
522 At the PC: \ 13 12 11 10 9 8 7 6 5 4 3 2 1 /
523 \ 25 24 23 22 21 20 19 18 17 16 15 14 /
524 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
526 Pin | Name | Description
527 ~~~~~~|~~~~~~~~~|~~~~~~~~~~
528 1 | /STROBE | Strobe
529 2-9 | D0-D7 | Data Bit 0-7
530 10 | /ACK | Acknowledge
531 11 | BUSY | Busy
532 12 | PE | Paper End
533 13 | SELIN | Select In
534 14 | /AUTOFD | Autofeed
535 15 | /ERROR | Error
536 16 | /INIT | Initialize
537 17 | /SEL | Select
538 18-25 | GND | Signal Ground
540 3.5 End
541 ~~~~~~~
542 That's all, folks! Have fun!