patch-2.4.0-test2 linux/drivers/char/joystick/gamecon.c
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- Lines: 669
- Date:
Wed Jun 21 08:22:21 2000
- Orig file:
v2.4.0-test1/linux/drivers/char/joystick/gamecon.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.0-test1/linux/drivers/char/joystick/gamecon.c linux/drivers/char/joystick/gamecon.c
@@ -0,0 +1,668 @@
+/*
+ * $Id: gamecon.c,v 1.4 2000/05/29 21:08:45 vojtech Exp $
+ *
+ * Copyright (c) 1999-2000 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Andree Borrmann John Dahlstrom
+ * David Kuder
+ *
+ * Sponsored by SuSE
+ */
+
+/*
+ * NES, SNES, N64, Multi1, Multi2, PSX gamepad driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
+ * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/parport.h>
+#include <linux/input.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
+MODULE_PARM(gc, "2-6i");
+MODULE_PARM(gc_2,"2-6i");
+MODULE_PARM(gc_3,"2-6i");
+
+#define GC_SNES 1
+#define GC_NES 2
+#define GC_NES4 3
+#define GC_MULTI 4
+#define GC_MULTI2 5
+#define GC_N64 6
+#define GC_PSX 7
+
+#define GC_MAX 7
+
+#define GC_REFRESH_TIME HZ/100
+
+struct gc {
+ struct pardevice *pd;
+ struct input_dev dev[5];
+ struct timer_list timer;
+ unsigned char pads[GC_PSX + 1];
+ int used;
+};
+
+static struct gc *gc_base[3];
+
+static int gc[] __initdata = { -1, 0, 0, 0, 0, 0 };
+static int gc_2[] __initdata = { -1, 0, 0, 0, 0, 0 };
+static int gc_3[] __initdata = { -1, 0, 0, 0, 0, 0 };
+
+static int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 };
+
+static char *gc_names[] = { NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
+ "Multisystem 2-button joystick", "N64 controller", "PSX pad",
+ "PSX NegCon", "PSX Analog contoller" };
+/*
+ * N64 support.
+ */
+
+static unsigned char gc_n64_bytes[] = { 0, 1, 13, 15, 14, 12, 10, 11, 2, 3 };
+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 };
+
+#define GC_N64_LENGTH 32 /* N64 bit length, not including stop bit */
+#define GC_N64_REQUEST_LENGTH 37 /* transmit request sequence is 9 bits long */
+#define GC_N64_DELAY 133 /* delay between transmit request, and response ready (us) */
+#define GC_N64_REQUEST 0x1dd1111111ULL /* the request data command (encoded for 000000011) */
+#define GC_N64_DWS 3 /* delay between write segments (required for sound playback because of ISA DMA) */
+ /* GC_N64_DWS > 24 is known to fail */
+#define GC_N64_POWER_W 0xe2 /* power during write (transmit request) */
+#define GC_N64_POWER_R 0xfd /* power during read */
+#define GC_N64_OUT 0x1d /* output bits to the 4 pads */
+ /* Reading the main axes of any N64 pad is known to fail if the corresponding bit */
+ /* in GC_N64_OUT is pulled low on the output port (by any routine) for more */
+ /* than 123 us */
+#define GC_N64_CLOCK 0x02 /* clock bits for read */
+
+/*
+ * gc_n64_read_packet() reads an N64 packet.
+ * Each pad uses one bit per byte. So all pads connected to this port are read in parallel.
+ */
+
+static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
+{
+ int i;
+ unsigned long flags;
+
+/*
+ * Request the pad to transmit data
+ */
+
+ __save_flags(flags);
+ __cli();
+ for (i = 0; i < GC_N64_REQUEST_LENGTH; i++) {
+ parport_write_data(gc->pd->port, GC_N64_POWER_W | ((GC_N64_REQUEST >> i) & 1 ? GC_N64_OUT : 0));
+ udelay(GC_N64_DWS);
+ }
+ __restore_flags(flags);
+
+/*
+ * Wait for the pad response to be loaded into the 33-bit register of the adapter
+ */
+
+ udelay(GC_N64_DELAY);
+
+/*
+ * Grab data (ignoring the last bit, which is a stop bit)
+ */
+
+ for (i = 0; i < GC_N64_LENGTH; i++) {
+ parport_write_data(gc->pd->port, GC_N64_POWER_R);
+ data[i] = parport_read_status(gc->pd->port);
+ parport_write_data(gc->pd->port, GC_N64_POWER_R | GC_N64_CLOCK);
+ }
+
+/*
+ * We must wait 200 ms here for the controller to reinitialize before the next read request.
+ * No worries as long as gc_read is polled less frequently than this.
+ */
+
+}
+
+/*
+ * NES/SNES support.
+ */
+
+#define GC_NES_DELAY 6 /* Delay between bits - 6us */
+#define GC_NES_LENGTH 8 /* The NES pads use 8 bits of data */
+#define GC_SNES_LENGTH 12 /* The SNES true length is 16, but the last 4 bits are unused */
+
+#define GC_NES_POWER 0xfc
+#define GC_NES_CLOCK 0x01
+#define GC_NES_LATCH 0x02
+
+static unsigned char gc_nes_bytes[] = { 0, 1, 2, 3 };
+static unsigned char gc_snes_bytes[] = { 8, 0, 2, 3, 9, 1, 10, 11 };
+static short gc_snes_btn[] = { BTN_A, BTN_B, BTN_START, BTN_SELECT, BTN_X, BTN_Y, BTN_TL, BTN_TR };
+
+/*
+ * gc_nes_read_packet() reads a NES/SNES packet.
+ * Each pad uses one bit per byte. So all pads connected to
+ * this port are read in parallel.
+ */
+
+static void gc_nes_read_packet(struct gc *gc, int length, unsigned char *data)
+{
+ int i;
+
+ parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK | GC_NES_LATCH);
+ udelay(GC_NES_DELAY * 2);
+ parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
+
+ for (i = 0; i < length; i++) {
+ udelay(GC_NES_DELAY);
+ parport_write_data(gc->pd->port, GC_NES_POWER);
+ data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
+ udelay(GC_NES_DELAY);
+ parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
+ }
+}
+
+/*
+ * Multisystem joystick support
+ */
+
+#define GC_MULTI_LENGTH 5 /* Multi system joystick packet length is 5 */
+#define GC_MULTI2_LENGTH 6 /* One more bit for one more button */
+
+/*
+ * gc_multi_read_packet() reads a Multisystem joystick packet.
+ */
+
+static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data)
+{
+ int i;
+
+ for (i = 0; i < length; i++) {
+ parport_write_data(gc->pd->port, ~(1 << i));
+ data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
+ }
+}
+
+/*
+ * PSX support
+ */
+
+#define GC_PSX_DELAY 10
+#define GC_PSX_LENGTH 8 /* talk to the controller in bytes */
+
+#define GC_PSX_MOUSE 0x12 /* PSX Mouse */
+#define GC_PSX_NEGCON 0x23 /* NegCon pad */
+#define GC_PSX_NORMAL 0x41 /* Standard Digital controller */
+#define GC_PSX_ANALOGR 0x73 /* Analog controller in Red mode */
+#define GC_PSX_ANALOGG 0x53 /* Analog controller in Green mode */
+
+#define GC_PSX_CLOCK 0x04 /* Pin 3 */
+#define GC_PSX_COMMAND 0x01 /* Pin 1 */
+#define GC_PSX_POWER 0xf8 /* Pins 5-9 */
+#define GC_PSX_SELECT 0x02 /* Pin 2 */
+#define GC_PSX_NOPOWER 0x04
+
+static short gc_psx_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y };
+static short gc_psx_btn[] = { BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y,
+ BTN_START, BTN_SELECT, BTN_THUMB, BTN_THUMB2 };
+
+/*
+ * gc_psx_command() writes 8bit command and reads 8bit data from
+ * the psx pad.
+ */
+
+static int gc_psx_command(struct gc *gc, int b)
+{
+ int i, cmd, ret = 0;
+
+ cmd = (b & 1) ? GC_PSX_COMMAND : 0;
+ for (i = 0; i < 8; i++) {
+ parport_write_data(gc->pd->port, cmd | GC_PSX_POWER);
+ udelay(GC_PSX_DELAY);
+ ret |= ((parport_read_status(gc->pd->port) ^ 0x80) & gc->pads[GC_PSX]) ? (1 << i) : 0;
+ cmd = (b & 1) ? GC_PSX_COMMAND : 0;
+ parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER);
+ udelay(GC_PSX_DELAY);
+ b >>= 1;
+ }
+ return ret;
+}
+
+/*
+ * gc_psx_read_packet() reads a whole psx packet and returns
+ * device identifier code.
+ */
+
+static int gc_psx_read_packet(struct gc *gc, int length, unsigned char *data)
+{
+ int i, ret;
+ unsigned long flags;
+
+ __save_flags(flags);
+ __cli();
+
+ parport_write_data(gc->pd->port, GC_PSX_POWER);
+
+ parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER); /* Select pad */
+ udelay(GC_PSX_DELAY * 2);
+ gc_psx_command(gc, 0x01); /* Access pad */
+ ret = gc_psx_command(gc, 0x42); /* Get device id */
+ if (gc_psx_command(gc, 0) == 'Z') /* okay? */
+ for (i = 0; i < length; i++)
+ data[i] = gc_psx_command(gc, 0);
+ else ret = -1;
+
+ parport_write_data(gc->pd->port, GC_PSX_SELECT | GC_PSX_CLOCK | GC_PSX_POWER);
+ __restore_flags(flags);
+
+ return ret;
+}
+
+/*
+ * gc_timer() reads and analyzes console pads data.
+ */
+
+#define GC_MAX_LENGTH GC_N64_LENGTH
+
+static void gc_timer(unsigned long private)
+{
+ struct gc *gc = (void *) private;
+ struct input_dev *dev = gc->dev;
+ unsigned char data[GC_MAX_LENGTH];
+ int i, j, s;
+
+/*
+ * N64 pads - must be read first, any read confuses them for 200 us
+ */
+
+ if (gc->pads[GC_N64]) {
+
+ gc_n64_read_packet(gc, data);
+
+ for (i = 0; i < 5; i++) {
+
+ s = gc_status_bit[i];
+
+ if (s & gc->pads[GC_N64] & ~(data[8] | data[9])) {
+
+ signed char axes[2];
+ axes[0] = axes[1] = 0;
+
+ for (j = 0; j < 8; j++) {
+ if (data[23 - j] & s) axes[0] |= 1 << j;
+ if (data[31 - j] & s) axes[1] |= 1 << j;
+ }
+
+ input_report_abs(dev + i, ABS_X, axes[0]);
+ input_report_abs(dev + i, ABS_Y, -axes[1]);
+
+ input_report_abs(dev + i, ABS_HAT0X, !!(s & data[7]) - !!(s & data[6]));
+ input_report_abs(dev + i, ABS_HAT0Y, !!(s & data[5]) - !!(s & data[4]));
+
+ for (j = 0; j < 10; j++)
+ input_report_key(dev + i, gc_n64_btn[j], s & data[gc_n64_bytes[j]]);
+ }
+ }
+ }
+
+/*
+ * NES and SNES pads
+ */
+
+ if (gc->pads[GC_NES] || gc->pads[GC_SNES]) {
+
+ gc_nes_read_packet(gc, gc->pads[GC_SNES] ? GC_SNES_LENGTH : GC_NES_LENGTH, data);
+
+ for (i = 0; i < 5; i++) {
+
+ s = gc_status_bit[i];
+
+ if (s & (gc->pads[GC_NES] | gc->pads[GC_SNES])) {
+ input_report_abs(dev + i, ABS_X, !!(s & data[7]) - !!(s & data[6]));
+ input_report_abs(dev + i, ABS_Y, !!(s & data[5]) - !!(s & data[4]));
+ }
+
+ if (s & gc->pads[GC_NES])
+ for (j = 0; j < 4; j++)
+ input_report_key(dev + i, gc_snes_btn[j], s & data[gc_nes_bytes[j]]);
+
+ if (s & gc->pads[GC_SNES])
+ for (j = 0; j < 8; j++)
+ input_report_key(dev + i, gc_snes_btn[j], s & data[gc_snes_bytes[j]]);
+ }
+ }
+
+/*
+ * Multi and Multi2 joysticks
+ */
+
+ if (gc->pads[GC_MULTI] || gc->pads[GC_MULTI2]) {
+
+ gc_multi_read_packet(gc, gc->pads[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH, data);
+
+ for (i = 0; i < 5; i++) {
+
+ s = gc_status_bit[i];
+
+ if (s & (gc->pads[GC_MULTI] | gc->pads[GC_MULTI2])) {
+ input_report_abs(dev + i, ABS_X, !!(s & data[3]) - !!(s & data[2]));
+ input_report_abs(dev + i, ABS_Y, !!(s & data[1]) - !!(s & data[0]));
+ input_report_key(dev + i, BTN_TRIGGER, s & data[4]);
+ }
+
+ if (s & gc->pads[GC_MULTI2])
+ input_report_key(dev + i, BTN_THUMB, s & data[5]);
+ }
+ }
+
+/*
+ * PSX controllers
+ */
+
+ if (gc->pads[GC_PSX]) {
+
+ for (i = 0; i < 5; i++)
+ if (gc->pads[GC_PSX] & gc_status_bit[i])
+ break;
+
+ switch (gc_psx_read_packet(gc, 6, data)) {
+
+ case GC_PSX_ANALOGG:
+
+ for (j = 0; j < 4; j++)
+ input_report_abs(dev + i, gc_psx_abs[j], data[j + 2]);
+
+ input_report_abs(dev + i, ABS_HAT0X, !!(data[0]&0x20) - !!(data[0]&0x80));
+ input_report_abs(dev + i, ABS_HAT0Y, !!(data[0]&0x40) - !!(data[0]&0x10));
+
+ for (j = 0; j < 8; j++)
+ input_report_key(dev + i, gc_psx_btn[j], ~data[1] & (1 << i));
+
+ input_report_key(dev + i, BTN_START, ~data[0] & 0x08);
+ input_report_key(dev + i, BTN_SELECT, ~data[0] & 0x01);
+
+ break;
+
+ case GC_PSX_ANALOGR:
+
+ input_report_key(dev + i, BTN_THUMB, ~data[0] & 0x04);
+ input_report_key(dev + i, BTN_THUMB2, ~data[0] & 0x02);
+
+ case GC_PSX_NORMAL:
+ case GC_PSX_NEGCON:
+
+ input_report_abs(dev + i, ABS_X, 128 + !!(data[0] & 0x20) * 127 - !!(data[0] & 0x80) * 128);
+ input_report_abs(dev + i, ABS_Y, 128 + !!(data[0] & 0x40) * 127 - !!(data[0] & 0x10) * 128);
+
+ for (j = 0; j < 8; j++)
+ input_report_key(dev + i, gc_psx_btn[j], ~data[1] & (1 << i));
+
+ input_report_key(dev + i, BTN_START, ~data[0] & 0x08);
+ input_report_key(dev + i, BTN_SELECT, ~data[0] & 0x01);
+
+ break;
+ }
+ }
+
+ mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
+}
+
+static int gc_open(struct input_dev *dev)
+{
+ struct gc *gc = dev->private;
+ if (!gc->used++) {
+ parport_claim(gc->pd);
+ parport_write_control(gc->pd->port, 0x04);
+ mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
+ }
+ return 0;
+}
+
+static void gc_close(struct input_dev *dev)
+{
+ struct gc *gc = dev->private;
+ if (!--gc->used) {
+ del_timer(&gc->timer);
+ parport_write_control(gc->pd->port, 0x00);
+ parport_release(gc->pd);
+ }
+}
+
+
+
+static struct gc __init *gc_probe(int *config)
+{
+ struct gc *gc;
+ struct parport *pp;
+ int i, j, psx, pbtn;
+ unsigned char data[2];
+
+ if (config[0] < 0)
+ return NULL;
+
+ for (pp = parport_enumerate(); pp && (config[0] > 0); pp = pp->next)
+ config[0]--;
+
+ if (!pp) {
+ printk(KERN_ERR "gamecon.c: no such parport\n");
+ return NULL;
+ }
+
+ if (!(gc = kmalloc(sizeof(struct gc), GFP_KERNEL)))
+ return NULL;
+ memset(gc, 0, sizeof(struct gc));
+
+ gc->pd = parport_register_device(pp, "gamecon", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
+
+ if (!gc->pd) {
+ printk(KERN_ERR "gamecon.c: parport busy already - lp.o loaded?\n");
+ kfree(gc);
+ return NULL;
+ }
+
+ parport_claim(gc->pd);
+
+ init_timer(&gc->timer);
+ gc->timer.data = (long) gc;
+ gc->timer.function = gc_timer;
+
+ for (i = 0; i < 5; i++) {
+
+ if (!config[i + 1])
+ continue;
+
+ if (config[i + 1] < 1 || config[i + 1] > GC_MAX) {
+ printk(KERN_WARNING "gamecon.c: Pad type %d unknown\n", config[i + 1]);
+ continue;
+ }
+
+ gc->dev[i].private = gc;
+ gc->dev[i].open = gc_open;
+ gc->dev[i].close = gc_close;
+
+ gc->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+
+ for (j = 0; j < 2; j++) {
+ set_bit(ABS_X + j, gc->dev[i].absbit);
+ gc->dev[i].absmin[ABS_X + j] = -1;
+ gc->dev[i].absmax[ABS_X + j] = 1;
+ }
+
+ gc->pads[0] |= gc_status_bit[i];
+ gc->pads[config[i + 1]] |= gc_status_bit[i];
+
+ switch(config[i + 1]) {
+
+ case GC_N64:
+ for (j = 0; j < 10; j++)
+ set_bit(gc_n64_btn[j], gc->dev[j].keybit);
+
+ for (j = 0; j < 2; j++) {
+ set_bit(ABS_X + j, gc->dev[i].absbit);
+ gc->dev[i].absmin[ABS_X + j] = -127;
+ gc->dev[i].absmax[ABS_X + j] = 126;
+ gc->dev[i].absflat[ABS_X + j] = 2;
+ set_bit(ABS_HAT0X + j, gc->dev[i].absbit);
+ gc->dev[i].absmin[ABS_HAT0X + j] = -1;
+ gc->dev[i].absmax[ABS_HAT0X + j] = 1;
+ }
+
+ break;
+
+ case GC_SNES:
+ for (j = 0; j < 8; j++)
+ set_bit(gc_snes_btn[j], gc->dev[j].keybit);
+ break;
+
+ case GC_NES:
+ for (j = 0; j < 4; j++)
+ set_bit(gc_snes_btn[j], gc->dev[j].keybit);
+ break;
+
+ case GC_MULTI2:
+ set_bit(BTN_THUMB, gc->dev[i].keybit);
+
+ case GC_MULTI:
+ set_bit(BTN_TRIGGER, gc->dev[i].keybit);
+ break;
+
+ case GC_PSX:
+
+ psx = gc_psx_read_packet(gc, 2, data);
+
+ switch(psx) {
+ case GC_PSX_NEGCON:
+ config[i + 1] += 1;
+ case GC_PSX_NORMAL:
+ pbtn = 10;
+ break;
+
+ case GC_PSX_ANALOGG:
+ case GC_PSX_ANALOGR:
+ config[i + 1] += 2;
+ pbtn = 12;
+ for (j = 0; j < 6; j++) {
+ psx = gc_psx_abs[j];
+ set_bit(psx, gc->dev[i].absbit);
+ gc->dev[i].absmin[psx] = 4;
+ gc->dev[i].absmax[psx] = 252;
+ gc->dev[i].absflat[psx] = 2;
+ }
+ break;
+
+ case -1:
+ gc->pads[GC_PSX] &= ~gc_status_bit[i];
+ pbtn = 0;
+ printk(KERN_ERR "gamecon.c: No PSX controller found.\n");
+ break;
+
+ default:
+ gc->pads[GC_PSX] &= ~gc_status_bit[i];
+ pbtn = 0;
+ printk(KERN_WARNING "gamecon.c: Unsupported PSX controller %#x,"
+ " please report to <vojtech@suse.cz>.\n", psx);
+ }
+
+ for (j = 0; j < pbtn; j++)
+ set_bit(gc_psx_btn[j], gc->dev[i].keybit);
+
+ break;
+ }
+
+ gc->dev[i].name = gc_names[config[i + 1]];
+ gc->dev[i].idbus = BUS_PARPORT;
+ gc->dev[i].idvendor = 0x0001;
+ gc->dev[i].idproduct = config[i + 1];
+ gc->dev[i].idversion = 0x0100;
+ }
+
+ parport_release(gc->pd);
+
+ if (!gc->pads[0]) {
+ parport_unregister_device(gc->pd);
+ kfree(gc);
+ return NULL;
+ }
+
+ for (i = 0; i < 5; i++)
+ if (gc->pads[0] & gc_status_bit[i]) {
+ input_register_device(gc->dev + i);
+ printk(KERN_INFO "input%d: %s on %s\n", gc->dev[i].number, gc->dev[i].name, gc->pd->port->name);
+ }
+
+ return gc;
+}
+
+#ifndef MODULE
+int __init gc_setup(char *str)
+{
+ int i, ints[7];
+ get_options(str, ARRAY_SIZE(ints), ints);
+ for (i = 0; i <= ints[0] && i < 6; i++) gc[i] = ints[i + 1];
+ return 1;
+}
+int __init gc_setup_2(char *str)
+{
+ int i, ints[7];
+ get_options(str, ARRAY_SIZE(ints), ints);
+ for (i = 0; i <= ints[0] && i < 6; i++) gc_2[i] = ints[i + 1];
+ return 1;
+}
+int __init gc_setup_3(char *str)
+{
+ int i, ints[7];
+ get_options(str, ARRAY_SIZE(ints), ints);
+ for (i = 0; i <= ints[0] && i < 6; i++) gc_3[i] = ints[i + 1];
+ return 1;
+}
+__setup("gc=", gc_setup);
+__setup("gc_2=", gc_setup_2);
+__setup("gc_3=", gc_setup_3);
+#endif
+
+int __init gc_init(void)
+{
+ gc_base[0] = gc_probe(gc);
+ gc_base[1] = gc_probe(gc_2);
+ gc_base[2] = gc_probe(gc_3);
+
+ if (gc_base[0] || gc_base[1] || gc_base[2])
+ return 0;
+
+ return -ENODEV;
+}
+
+void __exit gc_exit(void)
+{
+ int i, j;
+
+ for (i = 0; i < 3; i++) {
+ for (j = 0; j < 5; j++)
+ if (gc_base[i]->pads[0] & gc_status_bit[j])
+ input_unregister_device(gc_base[i]->dev + j);
+ parport_unregister_device(gc_base[i]->pd);
+ }
+}
+
+module_init(gc_init);
+module_exit(gc_exit);
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)