![Jiri Slaby](/assets/img/avatar_default.png)
get rid of input BIT* duplicate defines use newly global defined macros for input layer. Also remove includes of input.h from non-input sources only for BIT macro definiton. Define the macro temporarily in local manner, all those local definitons will be removed further in this patchset (to not break bisecting). BIT macro will be globally defined (1<<x) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: <dtor@mail.ru> Acked-by: Jiri Kosina <jkosina@suse.cz> Cc: <lenb@kernel.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Cc: <perex@suse.cz> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: <vernux@us.ibm.com> Cc: <malattia@linux.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
853 lines
22 KiB
C
853 lines
22 KiB
C
/*
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* NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux
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*
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* Copyright (c) 1999-2004 Vojtech Pavlik <vojtech@suse.cz>
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* Copyright (c) 2004 Peter Nelson <rufus-kernel@hackish.org>
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*
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* Based on the work of:
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* Andree Borrmann John Dahlstrom
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* David Kuder Nathan Hand
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* Raphael Assenat
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Should you need to contact me, the author, you can do so either by
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* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
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*/
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/parport.h>
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#include <linux/input.h>
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#include <linux/mutex.h>
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION("NES, SNES, N64, MultiSystem, PSX gamepad driver");
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MODULE_LICENSE("GPL");
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#define GC_MAX_PORTS 3
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#define GC_MAX_DEVICES 5
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struct gc_config {
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int args[GC_MAX_DEVICES + 1];
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unsigned int nargs;
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};
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static struct gc_config gc_cfg[GC_MAX_PORTS] __initdata;
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module_param_array_named(map, gc_cfg[0].args, int, &gc_cfg[0].nargs, 0);
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MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<pad1>,<pad2>,..<pad5>)");
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module_param_array_named(map2, gc_cfg[1].args, int, &gc_cfg[1].nargs, 0);
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MODULE_PARM_DESC(map2, "Describes second set of devices");
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module_param_array_named(map3, gc_cfg[2].args, int, &gc_cfg[2].nargs, 0);
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MODULE_PARM_DESC(map3, "Describes third set of devices");
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/* see also gs_psx_delay parameter in PSX support section */
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#define GC_SNES 1
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#define GC_NES 2
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#define GC_NES4 3
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#define GC_MULTI 4
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#define GC_MULTI2 5
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#define GC_N64 6
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#define GC_PSX 7
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#define GC_DDR 8
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#define GC_SNESMOUSE 9
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#define GC_MAX 9
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#define GC_REFRESH_TIME HZ/100
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struct gc {
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struct pardevice *pd;
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struct input_dev *dev[GC_MAX_DEVICES];
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struct timer_list timer;
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unsigned char pads[GC_MAX + 1];
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int used;
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struct mutex mutex;
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char phys[GC_MAX_DEVICES][32];
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};
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static struct gc *gc_base[3];
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static int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 };
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static char *gc_names[] = { NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
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"Multisystem 2-button joystick", "N64 controller", "PSX controller",
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"PSX DDR controller", "SNES mouse" };
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/*
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* N64 support.
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*/
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static unsigned char gc_n64_bytes[] = { 0, 1, 13, 15, 14, 12, 10, 11, 2, 3 };
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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 };
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#define GC_N64_LENGTH 32 /* N64 bit length, not including stop bit */
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#define GC_N64_REQUEST_LENGTH 37 /* transmit request sequence is 9 bits long */
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#define GC_N64_DELAY 133 /* delay between transmit request, and response ready (us) */
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#define GC_N64_REQUEST 0x1dd1111111ULL /* the request data command (encoded for 000000011) */
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#define GC_N64_DWS 3 /* delay between write segments (required for sound playback because of ISA DMA) */
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/* GC_N64_DWS > 24 is known to fail */
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#define GC_N64_POWER_W 0xe2 /* power during write (transmit request) */
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#define GC_N64_POWER_R 0xfd /* power during read */
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#define GC_N64_OUT 0x1d /* output bits to the 4 pads */
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/* Reading the main axes of any N64 pad is known to fail if the corresponding bit */
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/* in GC_N64_OUT is pulled low on the output port (by any routine) for more */
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/* than 123 us */
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#define GC_N64_CLOCK 0x02 /* clock bits for read */
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/*
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* gc_n64_read_packet() reads an N64 packet.
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* Each pad uses one bit per byte. So all pads connected to this port are read in parallel.
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*/
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static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
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{
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int i;
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unsigned long flags;
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/*
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* Request the pad to transmit data
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*/
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local_irq_save(flags);
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for (i = 0; i < GC_N64_REQUEST_LENGTH; i++) {
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parport_write_data(gc->pd->port, GC_N64_POWER_W | ((GC_N64_REQUEST >> i) & 1 ? GC_N64_OUT : 0));
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udelay(GC_N64_DWS);
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}
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local_irq_restore(flags);
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/*
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* Wait for the pad response to be loaded into the 33-bit register of the adapter
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*/
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udelay(GC_N64_DELAY);
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/*
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* Grab data (ignoring the last bit, which is a stop bit)
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*/
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for (i = 0; i < GC_N64_LENGTH; i++) {
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parport_write_data(gc->pd->port, GC_N64_POWER_R);
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data[i] = parport_read_status(gc->pd->port);
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parport_write_data(gc->pd->port, GC_N64_POWER_R | GC_N64_CLOCK);
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}
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/*
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* We must wait 200 ms here for the controller to reinitialize before the next read request.
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* No worries as long as gc_read is polled less frequently than this.
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*/
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}
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static void gc_n64_process_packet(struct gc *gc)
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{
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unsigned char data[GC_N64_LENGTH];
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signed char axes[2];
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struct input_dev *dev;
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int i, j, s;
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gc_n64_read_packet(gc, data);
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for (i = 0; i < GC_MAX_DEVICES; i++) {
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dev = gc->dev[i];
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if (!dev)
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continue;
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s = gc_status_bit[i];
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if (s & gc->pads[GC_N64] & ~(data[8] | data[9])) {
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axes[0] = axes[1] = 0;
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for (j = 0; j < 8; j++) {
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if (data[23 - j] & s)
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axes[0] |= 1 << j;
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if (data[31 - j] & s)
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axes[1] |= 1 << j;
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}
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input_report_abs(dev, ABS_X, axes[0]);
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input_report_abs(dev, ABS_Y, -axes[1]);
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input_report_abs(dev, ABS_HAT0X, !(s & data[6]) - !(s & data[7]));
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input_report_abs(dev, ABS_HAT0Y, !(s & data[4]) - !(s & data[5]));
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for (j = 0; j < 10; j++)
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input_report_key(dev, gc_n64_btn[j], s & data[gc_n64_bytes[j]]);
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input_sync(dev);
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}
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}
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}
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/*
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* NES/SNES support.
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*/
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#define GC_NES_DELAY 6 /* Delay between bits - 6us */
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#define GC_NES_LENGTH 8 /* The NES pads use 8 bits of data */
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#define GC_SNES_LENGTH 12 /* The SNES true length is 16, but the
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last 4 bits are unused */
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#define GC_SNESMOUSE_LENGTH 32 /* The SNES mouse uses 32 bits, the first
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16 bits are equivalent to a gamepad */
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#define GC_NES_POWER 0xfc
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#define GC_NES_CLOCK 0x01
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#define GC_NES_LATCH 0x02
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static unsigned char gc_nes_bytes[] = { 0, 1, 2, 3 };
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static unsigned char gc_snes_bytes[] = { 8, 0, 2, 3, 9, 1, 10, 11 };
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static short gc_snes_btn[] = { BTN_A, BTN_B, BTN_SELECT, BTN_START, BTN_X, BTN_Y, BTN_TL, BTN_TR };
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/*
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* gc_nes_read_packet() reads a NES/SNES packet.
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* Each pad uses one bit per byte. So all pads connected to
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* this port are read in parallel.
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*/
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static void gc_nes_read_packet(struct gc *gc, int length, unsigned char *data)
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{
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int i;
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parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK | GC_NES_LATCH);
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udelay(GC_NES_DELAY * 2);
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parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
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for (i = 0; i < length; i++) {
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udelay(GC_NES_DELAY);
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parport_write_data(gc->pd->port, GC_NES_POWER);
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data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
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udelay(GC_NES_DELAY);
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parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
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}
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}
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static void gc_nes_process_packet(struct gc *gc)
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{
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unsigned char data[GC_SNESMOUSE_LENGTH];
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struct input_dev *dev;
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int i, j, s, len;
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char x_rel, y_rel;
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len = gc->pads[GC_SNESMOUSE] ? GC_SNESMOUSE_LENGTH :
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(gc->pads[GC_SNES] ? GC_SNES_LENGTH : GC_NES_LENGTH);
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gc_nes_read_packet(gc, len, data);
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for (i = 0; i < GC_MAX_DEVICES; i++) {
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dev = gc->dev[i];
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if (!dev)
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continue;
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s = gc_status_bit[i];
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if (s & (gc->pads[GC_NES] | gc->pads[GC_SNES])) {
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input_report_abs(dev, ABS_X, !(s & data[6]) - !(s & data[7]));
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input_report_abs(dev, ABS_Y, !(s & data[4]) - !(s & data[5]));
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}
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if (s & gc->pads[GC_NES])
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for (j = 0; j < 4; j++)
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input_report_key(dev, gc_snes_btn[j], s & data[gc_nes_bytes[j]]);
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if (s & gc->pads[GC_SNES])
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for (j = 0; j < 8; j++)
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input_report_key(dev, gc_snes_btn[j], s & data[gc_snes_bytes[j]]);
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if (s & gc->pads[GC_SNESMOUSE]) {
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/*
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* The 4 unused bits from SNES controllers appear to be ID bits
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* so use them to make sure iwe are dealing with a mouse.
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* gamepad is connected. This is important since
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* my SNES gamepad sends 1's for bits 16-31, which
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* cause the mouse pointer to quickly move to the
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* upper left corner of the screen.
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*/
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if (!(s & data[12]) && !(s & data[13]) &&
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!(s & data[14]) && (s & data[15])) {
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input_report_key(dev, BTN_LEFT, s & data[9]);
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input_report_key(dev, BTN_RIGHT, s & data[8]);
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x_rel = y_rel = 0;
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for (j = 0; j < 7; j++) {
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x_rel <<= 1;
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if (data[25 + j] & s)
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x_rel |= 1;
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y_rel <<= 1;
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if (data[17 + j] & s)
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y_rel |= 1;
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}
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if (x_rel) {
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if (data[24] & s)
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x_rel = -x_rel;
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input_report_rel(dev, REL_X, x_rel);
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}
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if (y_rel) {
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if (data[16] & s)
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y_rel = -y_rel;
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input_report_rel(dev, REL_Y, y_rel);
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}
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}
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}
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input_sync(dev);
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}
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}
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/*
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* Multisystem joystick support
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*/
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#define GC_MULTI_LENGTH 5 /* Multi system joystick packet length is 5 */
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#define GC_MULTI2_LENGTH 6 /* One more bit for one more button */
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/*
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* gc_multi_read_packet() reads a Multisystem joystick packet.
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*/
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static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data)
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{
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int i;
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for (i = 0; i < length; i++) {
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parport_write_data(gc->pd->port, ~(1 << i));
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data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
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}
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}
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static void gc_multi_process_packet(struct gc *gc)
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{
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unsigned char data[GC_MULTI2_LENGTH];
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struct input_dev *dev;
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int i, s;
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gc_multi_read_packet(gc, gc->pads[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH, data);
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for (i = 0; i < GC_MAX_DEVICES; i++) {
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dev = gc->dev[i];
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if (!dev)
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continue;
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s = gc_status_bit[i];
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if (s & (gc->pads[GC_MULTI] | gc->pads[GC_MULTI2])) {
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input_report_abs(dev, ABS_X, !(s & data[2]) - !(s & data[3]));
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input_report_abs(dev, ABS_Y, !(s & data[0]) - !(s & data[1]));
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input_report_key(dev, BTN_TRIGGER, s & data[4]);
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}
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if (s & gc->pads[GC_MULTI2])
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input_report_key(dev, BTN_THUMB, s & data[5]);
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input_sync(dev);
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}
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}
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/*
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* PSX support
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*
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* See documentation at:
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* http://www.dim.com/~mackys/psxmemcard/ps-eng2.txt
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* http://www.gamesx.com/controldata/psxcont/psxcont.htm
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* ftp://milano.usal.es/pablo/
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*
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*/
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#define GC_PSX_DELAY 25 /* 25 usec */
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#define GC_PSX_LENGTH 8 /* talk to the controller in bits */
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#define GC_PSX_BYTES 6 /* the maximum number of bytes to read off the controller */
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#define GC_PSX_MOUSE 1 /* Mouse */
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#define GC_PSX_NEGCON 2 /* NegCon */
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#define GC_PSX_NORMAL 4 /* Digital / Analog or Rumble in Digital mode */
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#define GC_PSX_ANALOG 5 /* Analog in Analog mode / Rumble in Green mode */
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#define GC_PSX_RUMBLE 7 /* Rumble in Red mode */
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#define GC_PSX_CLOCK 0x04 /* Pin 4 */
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#define GC_PSX_COMMAND 0x01 /* Pin 2 */
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#define GC_PSX_POWER 0xf8 /* Pins 5-9 */
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#define GC_PSX_SELECT 0x02 /* Pin 3 */
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#define GC_PSX_ID(x) ((x) >> 4) /* High nibble is device type */
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#define GC_PSX_LEN(x) (((x) & 0xf) << 1) /* Low nibble is length in bytes/2 */
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static int gc_psx_delay = GC_PSX_DELAY;
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module_param_named(psx_delay, gc_psx_delay, uint, 0);
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MODULE_PARM_DESC(psx_delay, "Delay when accessing Sony PSX controller (usecs)");
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static short gc_psx_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y };
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static short gc_psx_btn[] = { BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y,
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BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR };
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static short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 };
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/*
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* gc_psx_command() writes 8bit command and reads 8bit data from
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* the psx pad.
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*/
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static void gc_psx_command(struct gc *gc, int b, unsigned char data[GC_MAX_DEVICES])
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{
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int i, j, cmd, read;
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for (i = 0; i < GC_MAX_DEVICES; i++)
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data[i] = 0;
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for (i = 0; i < GC_PSX_LENGTH; i++, b >>= 1) {
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cmd = (b & 1) ? GC_PSX_COMMAND : 0;
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parport_write_data(gc->pd->port, cmd | GC_PSX_POWER);
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udelay(gc_psx_delay);
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read = parport_read_status(gc->pd->port) ^ 0x80;
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for (j = 0; j < GC_MAX_DEVICES; j++)
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data[j] |= (read & gc_status_bit[j] & (gc->pads[GC_PSX] | gc->pads[GC_DDR])) ? (1 << i) : 0;
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parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER);
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udelay(gc_psx_delay);
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}
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}
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/*
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* gc_psx_read_packet() reads a whole psx packet and returns
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* device identifier code.
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*/
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static void gc_psx_read_packet(struct gc *gc, unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES],
|
|
unsigned char id[GC_MAX_DEVICES])
|
|
{
|
|
int i, j, max_len = 0;
|
|
unsigned long flags;
|
|
unsigned char data2[GC_MAX_DEVICES];
|
|
|
|
parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER); /* Select pad */
|
|
udelay(gc_psx_delay);
|
|
parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER); /* Deselect, begin command */
|
|
udelay(gc_psx_delay);
|
|
|
|
local_irq_save(flags);
|
|
|
|
gc_psx_command(gc, 0x01, data2); /* Access pad */
|
|
gc_psx_command(gc, 0x42, id); /* Get device ids */
|
|
gc_psx_command(gc, 0, data2); /* Dump status */
|
|
|
|
for (i =0; i < GC_MAX_DEVICES; i++) /* Find the longest pad */
|
|
if((gc_status_bit[i] & (gc->pads[GC_PSX] | gc->pads[GC_DDR]))
|
|
&& (GC_PSX_LEN(id[i]) > max_len)
|
|
&& (GC_PSX_LEN(id[i]) <= GC_PSX_BYTES))
|
|
max_len = GC_PSX_LEN(id[i]);
|
|
|
|
for (i = 0; i < max_len; i++) { /* Read in all the data */
|
|
gc_psx_command(gc, 0, data2);
|
|
for (j = 0; j < GC_MAX_DEVICES; j++)
|
|
data[j][i] = data2[j];
|
|
}
|
|
|
|
local_irq_restore(flags);
|
|
|
|
parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
|
|
|
|
for(i = 0; i < GC_MAX_DEVICES; i++) /* Set id's to the real value */
|
|
id[i] = GC_PSX_ID(id[i]);
|
|
}
|
|
|
|
static void gc_psx_process_packet(struct gc *gc)
|
|
{
|
|
unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES];
|
|
unsigned char id[GC_MAX_DEVICES];
|
|
struct input_dev *dev;
|
|
int i, j;
|
|
|
|
gc_psx_read_packet(gc, data, id);
|
|
|
|
for (i = 0; i < GC_MAX_DEVICES; i++) {
|
|
|
|
dev = gc->dev[i];
|
|
if (!dev)
|
|
continue;
|
|
|
|
switch (id[i]) {
|
|
|
|
case GC_PSX_RUMBLE:
|
|
|
|
input_report_key(dev, BTN_THUMBL, ~data[i][0] & 0x04);
|
|
input_report_key(dev, BTN_THUMBR, ~data[i][0] & 0x02);
|
|
|
|
case GC_PSX_NEGCON:
|
|
case GC_PSX_ANALOG:
|
|
|
|
if (gc->pads[GC_DDR] & gc_status_bit[i]) {
|
|
for(j = 0; j < 4; j++)
|
|
input_report_key(dev, gc_psx_ddr_btn[j], ~data[i][0] & (0x10 << j));
|
|
} else {
|
|
for (j = 0; j < 4; j++)
|
|
input_report_abs(dev, gc_psx_abs[j + 2], data[i][j + 2]);
|
|
|
|
input_report_abs(dev, ABS_X, 128 + !(data[i][0] & 0x20) * 127 - !(data[i][0] & 0x80) * 128);
|
|
input_report_abs(dev, ABS_Y, 128 + !(data[i][0] & 0x40) * 127 - !(data[i][0] & 0x10) * 128);
|
|
}
|
|
|
|
for (j = 0; j < 8; j++)
|
|
input_report_key(dev, gc_psx_btn[j], ~data[i][1] & (1 << j));
|
|
|
|
input_report_key(dev, BTN_START, ~data[i][0] & 0x08);
|
|
input_report_key(dev, BTN_SELECT, ~data[i][0] & 0x01);
|
|
|
|
input_sync(dev);
|
|
|
|
break;
|
|
|
|
case GC_PSX_NORMAL:
|
|
if (gc->pads[GC_DDR] & gc_status_bit[i]) {
|
|
for(j = 0; j < 4; j++)
|
|
input_report_key(dev, gc_psx_ddr_btn[j], ~data[i][0] & (0x10 << j));
|
|
} else {
|
|
input_report_abs(dev, ABS_X, 128 + !(data[i][0] & 0x20) * 127 - !(data[i][0] & 0x80) * 128);
|
|
input_report_abs(dev, ABS_Y, 128 + !(data[i][0] & 0x40) * 127 - !(data[i][0] & 0x10) * 128);
|
|
|
|
/* for some reason if the extra axes are left unset they drift */
|
|
/* for (j = 0; j < 4; j++)
|
|
input_report_abs(dev, gc_psx_abs[j + 2], 128);
|
|
* This needs to be debugged properly,
|
|
* maybe fuzz processing needs to be done in input_sync()
|
|
* --vojtech
|
|
*/
|
|
}
|
|
|
|
for (j = 0; j < 8; j++)
|
|
input_report_key(dev, gc_psx_btn[j], ~data[i][1] & (1 << j));
|
|
|
|
input_report_key(dev, BTN_START, ~data[i][0] & 0x08);
|
|
input_report_key(dev, BTN_SELECT, ~data[i][0] & 0x01);
|
|
|
|
input_sync(dev);
|
|
|
|
break;
|
|
|
|
case 0: /* not a pad, ignore */
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* gc_timer() initiates reads of console pads data.
|
|
*/
|
|
|
|
static void gc_timer(unsigned long private)
|
|
{
|
|
struct gc *gc = (void *) private;
|
|
|
|
/*
|
|
* N64 pads - must be read first, any read confuses them for 200 us
|
|
*/
|
|
|
|
if (gc->pads[GC_N64])
|
|
gc_n64_process_packet(gc);
|
|
|
|
/*
|
|
* NES and SNES pads or mouse
|
|
*/
|
|
|
|
if (gc->pads[GC_NES] || gc->pads[GC_SNES] || gc->pads[GC_SNESMOUSE])
|
|
gc_nes_process_packet(gc);
|
|
|
|
/*
|
|
* Multi and Multi2 joysticks
|
|
*/
|
|
|
|
if (gc->pads[GC_MULTI] || gc->pads[GC_MULTI2])
|
|
gc_multi_process_packet(gc);
|
|
|
|
/*
|
|
* PSX controllers
|
|
*/
|
|
|
|
if (gc->pads[GC_PSX] || gc->pads[GC_DDR])
|
|
gc_psx_process_packet(gc);
|
|
|
|
mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
|
|
}
|
|
|
|
static int gc_open(struct input_dev *dev)
|
|
{
|
|
struct gc *gc = input_get_drvdata(dev);
|
|
int err;
|
|
|
|
err = mutex_lock_interruptible(&gc->mutex);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!gc->used++) {
|
|
parport_claim(gc->pd);
|
|
parport_write_control(gc->pd->port, 0x04);
|
|
mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
|
|
}
|
|
|
|
mutex_unlock(&gc->mutex);
|
|
return 0;
|
|
}
|
|
|
|
static void gc_close(struct input_dev *dev)
|
|
{
|
|
struct gc *gc = input_get_drvdata(dev);
|
|
|
|
mutex_lock(&gc->mutex);
|
|
if (!--gc->used) {
|
|
del_timer_sync(&gc->timer);
|
|
parport_write_control(gc->pd->port, 0x00);
|
|
parport_release(gc->pd);
|
|
}
|
|
mutex_unlock(&gc->mutex);
|
|
}
|
|
|
|
static int __init gc_setup_pad(struct gc *gc, int idx, int pad_type)
|
|
{
|
|
struct input_dev *input_dev;
|
|
int i;
|
|
|
|
if (!pad_type)
|
|
return 0;
|
|
|
|
if (pad_type < 1 || pad_type > GC_MAX) {
|
|
printk(KERN_WARNING "gamecon.c: Pad type %d unknown\n", pad_type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
gc->dev[idx] = input_dev = input_allocate_device();
|
|
if (!input_dev) {
|
|
printk(KERN_ERR "gamecon.c: Not enough memory for input device\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
input_dev->name = gc_names[pad_type];
|
|
input_dev->phys = gc->phys[idx];
|
|
input_dev->id.bustype = BUS_PARPORT;
|
|
input_dev->id.vendor = 0x0001;
|
|
input_dev->id.product = pad_type;
|
|
input_dev->id.version = 0x0100;
|
|
|
|
input_set_drvdata(input_dev, gc);
|
|
|
|
input_dev->open = gc_open;
|
|
input_dev->close = gc_close;
|
|
|
|
if (pad_type != GC_SNESMOUSE) {
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
|
|
|
|
for (i = 0; i < 2; i++)
|
|
input_set_abs_params(input_dev, ABS_X + i, -1, 1, 0, 0);
|
|
} else
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
|
|
|
|
gc->pads[0] |= gc_status_bit[idx];
|
|
gc->pads[pad_type] |= gc_status_bit[idx];
|
|
|
|
switch (pad_type) {
|
|
|
|
case GC_N64:
|
|
for (i = 0; i < 10; i++)
|
|
set_bit(gc_n64_btn[i], input_dev->keybit);
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
input_set_abs_params(input_dev, ABS_X + i, -127, 126, 0, 2);
|
|
input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
|
|
}
|
|
|
|
break;
|
|
|
|
case GC_SNESMOUSE:
|
|
set_bit(BTN_LEFT, input_dev->keybit);
|
|
set_bit(BTN_RIGHT, input_dev->keybit);
|
|
set_bit(REL_X, input_dev->relbit);
|
|
set_bit(REL_Y, input_dev->relbit);
|
|
break;
|
|
|
|
case GC_SNES:
|
|
for (i = 4; i < 8; i++)
|
|
set_bit(gc_snes_btn[i], input_dev->keybit);
|
|
case GC_NES:
|
|
for (i = 0; i < 4; i++)
|
|
set_bit(gc_snes_btn[i], input_dev->keybit);
|
|
break;
|
|
|
|
case GC_MULTI2:
|
|
set_bit(BTN_THUMB, input_dev->keybit);
|
|
case GC_MULTI:
|
|
set_bit(BTN_TRIGGER, input_dev->keybit);
|
|
break;
|
|
|
|
case GC_PSX:
|
|
for (i = 0; i < 6; i++)
|
|
input_set_abs_params(input_dev, gc_psx_abs[i], 4, 252, 0, 2);
|
|
for (i = 0; i < 12; i++)
|
|
set_bit(gc_psx_btn[i], input_dev->keybit);
|
|
|
|
break;
|
|
|
|
case GC_DDR:
|
|
for (i = 0; i < 4; i++)
|
|
set_bit(gc_psx_ddr_btn[i], input_dev->keybit);
|
|
for (i = 0; i < 12; i++)
|
|
set_bit(gc_psx_btn[i], input_dev->keybit);
|
|
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct gc __init *gc_probe(int parport, int *pads, int n_pads)
|
|
{
|
|
struct gc *gc;
|
|
struct parport *pp;
|
|
struct pardevice *pd;
|
|
int i;
|
|
int err;
|
|
|
|
pp = parport_find_number(parport);
|
|
if (!pp) {
|
|
printk(KERN_ERR "gamecon.c: no such parport\n");
|
|
err = -EINVAL;
|
|
goto err_out;
|
|
}
|
|
|
|
pd = parport_register_device(pp, "gamecon", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
|
|
if (!pd) {
|
|
printk(KERN_ERR "gamecon.c: parport busy already - lp.o loaded?\n");
|
|
err = -EBUSY;
|
|
goto err_put_pp;
|
|
}
|
|
|
|
gc = kzalloc(sizeof(struct gc), GFP_KERNEL);
|
|
if (!gc) {
|
|
printk(KERN_ERR "gamecon.c: Not enough memory\n");
|
|
err = -ENOMEM;
|
|
goto err_unreg_pardev;
|
|
}
|
|
|
|
mutex_init(&gc->mutex);
|
|
gc->pd = pd;
|
|
init_timer(&gc->timer);
|
|
gc->timer.data = (long) gc;
|
|
gc->timer.function = gc_timer;
|
|
|
|
for (i = 0; i < n_pads && i < GC_MAX_DEVICES; i++) {
|
|
if (!pads[i])
|
|
continue;
|
|
|
|
snprintf(gc->phys[i], sizeof(gc->phys[i]),
|
|
"%s/input%d", gc->pd->port->name, i);
|
|
err = gc_setup_pad(gc, i, pads[i]);
|
|
if (err)
|
|
goto err_unreg_devs;
|
|
|
|
err = input_register_device(gc->dev[i]);
|
|
if (err)
|
|
goto err_free_dev;
|
|
}
|
|
|
|
if (!gc->pads[0]) {
|
|
printk(KERN_ERR "gamecon.c: No valid devices specified\n");
|
|
err = -EINVAL;
|
|
goto err_free_gc;
|
|
}
|
|
|
|
parport_put_port(pp);
|
|
return gc;
|
|
|
|
err_free_dev:
|
|
input_free_device(gc->dev[i]);
|
|
err_unreg_devs:
|
|
while (--i >= 0)
|
|
if (gc->dev[i])
|
|
input_unregister_device(gc->dev[i]);
|
|
err_free_gc:
|
|
kfree(gc);
|
|
err_unreg_pardev:
|
|
parport_unregister_device(pd);
|
|
err_put_pp:
|
|
parport_put_port(pp);
|
|
err_out:
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static void gc_remove(struct gc *gc)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < GC_MAX_DEVICES; i++)
|
|
if (gc->dev[i])
|
|
input_unregister_device(gc->dev[i]);
|
|
parport_unregister_device(gc->pd);
|
|
kfree(gc);
|
|
}
|
|
|
|
static int __init gc_init(void)
|
|
{
|
|
int i;
|
|
int have_dev = 0;
|
|
int err = 0;
|
|
|
|
for (i = 0; i < GC_MAX_PORTS; i++) {
|
|
if (gc_cfg[i].nargs == 0 || gc_cfg[i].args[0] < 0)
|
|
continue;
|
|
|
|
if (gc_cfg[i].nargs < 2) {
|
|
printk(KERN_ERR "gamecon.c: at least one device must be specified\n");
|
|
err = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
gc_base[i] = gc_probe(gc_cfg[i].args[0],
|
|
gc_cfg[i].args + 1, gc_cfg[i].nargs - 1);
|
|
if (IS_ERR(gc_base[i])) {
|
|
err = PTR_ERR(gc_base[i]);
|
|
break;
|
|
}
|
|
|
|
have_dev = 1;
|
|
}
|
|
|
|
if (err) {
|
|
while (--i >= 0)
|
|
if (gc_base[i])
|
|
gc_remove(gc_base[i]);
|
|
return err;
|
|
}
|
|
|
|
return have_dev ? 0 : -ENODEV;
|
|
}
|
|
|
|
static void __exit gc_exit(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < GC_MAX_PORTS; i++)
|
|
if (gc_base[i])
|
|
gc_remove(gc_base[i]);
|
|
}
|
|
|
|
module_init(gc_init);
|
|
module_exit(gc_exit);
|