db9.c
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上传日期:2013-04-10
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- /*
- * $Id: db9.c,v 1.6 2000/06/25 10:57:50 vojtech Exp $
- *
- * Copyright (c) 1999 Vojtech Pavlik
- *
- * Based on the work of:
- * Andree Borrmann Mats Sj鰒all
- *
- * Sponsored by SuSE
- */
- /*
- * Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick 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/module.h>
- #include <linux/delay.h>
- #include <linux/init.h>
- #include <linux/parport.h>
- #include <linux/input.h>
- MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
- MODULE_LICENSE("GPL");
- MODULE_PARM(db9, "2i");
- MODULE_PARM(db9_2, "2i");
- MODULE_PARM(db9_3, "2i");
- #define DB9_MULTI_STICK 0x01
- #define DB9_MULTI2_STICK 0x02
- #define DB9_GENESIS_PAD 0x03
- #define DB9_GENESIS5_PAD 0x05
- #define DB9_GENESIS6_PAD 0x06
- #define DB9_SATURN_PAD 0x07
- #define DB9_MULTI_0802 0x08
- #define DB9_MULTI_0802_2 0x09
- #define DB9_CD32_PAD 0x0A
- #define DB9_MAX_PAD 0x0B
- #define DB9_UP 0x01
- #define DB9_DOWN 0x02
- #define DB9_LEFT 0x04
- #define DB9_RIGHT 0x08
- #define DB9_FIRE1 0x10
- #define DB9_FIRE2 0x20
- #define DB9_FIRE3 0x40
- #define DB9_FIRE4 0x80
- #define DB9_NORMAL 0x0a
- #define DB9_NOSELECT 0x08
- #define DB9_SATURN0 0x00
- #define DB9_SATURN1 0x02
- #define DB9_SATURN2 0x04
- #define DB9_SATURN3 0x06
- #define DB9_GENESIS6_DELAY 14
- #define DB9_REFRESH_TIME HZ/100
- static int db9[] __initdata = { -1, 0 };
- static int db9_2[] __initdata = { -1, 0 };
- static int db9_3[] __initdata = { -1, 0 };
- struct db9 {
- struct input_dev dev[2];
- struct timer_list timer;
- struct pardevice *pd;
- int mode;
- int used;
- };
- static struct db9 *db9_base[3];
- static short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
- static short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
- static short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
- static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 8, 1, 1, 7 };
- static short *db9_btn[DB9_MAX_PAD] = { NULL, db9_multi_btn, db9_multi_btn, db9_genesis_btn, NULL, db9_genesis_btn,
- db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn };
- static char *db9_name[DB9_MAX_PAD] = { NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad",
- NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick",
- "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad" };
- static void db9_timer(unsigned long private)
- {
- struct db9 *db9 = (void *) private;
- struct parport *port = db9->pd->port;
- struct input_dev *dev = db9->dev;
- int data, i;
- switch(db9->mode) {
- case DB9_MULTI_0802_2:
- data = parport_read_data(port) >> 3;
- input_report_abs(dev + 1, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
- input_report_abs(dev + 1, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
- input_report_key(dev + 1, BTN_TRIGGER, ~data & DB9_FIRE1);
- case DB9_MULTI_0802:
- data = parport_read_status(port) >> 3;
- input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
- input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
- input_report_key(dev, BTN_TRIGGER, data & DB9_FIRE1);
- break;
- case DB9_MULTI_STICK:
- data = parport_read_data(port);
- input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
- input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
- input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
- break;
- case DB9_MULTI2_STICK:
- data = parport_read_data(port);
- input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
- input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
- input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
- input_report_key(dev, BTN_THUMB, ~data & DB9_FIRE2);
- break;
- case DB9_GENESIS_PAD:
- parport_write_control(port, DB9_NOSELECT);
- data = parport_read_data(port);
- input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
- input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
- input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
- input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
- parport_write_control(port, DB9_NORMAL);
- data=parport_read_data(port);
- input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
- input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
- break;
- case DB9_GENESIS5_PAD:
- parport_write_control(port, DB9_NOSELECT);
- data=parport_read_data(port);
- input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
- input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
- input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
- input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
- parport_write_control(port, DB9_NORMAL);
- data=parport_read_data(port);
- input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
- input_report_key(dev, BTN_X, ~data & DB9_FIRE2);
- input_report_key(dev, BTN_Y, ~data & DB9_LEFT);
- input_report_key(dev, BTN_START, ~data & DB9_RIGHT);
- break;
- case DB9_GENESIS6_PAD:
- parport_write_control(port, DB9_NOSELECT); /* 1 */
- udelay(DB9_GENESIS6_DELAY);
- data=parport_read_data(port);
- input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
- input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
- input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
- input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
- parport_write_control(port, DB9_NORMAL);
- udelay(DB9_GENESIS6_DELAY);
- data=parport_read_data(port);
- input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
- input_report_key(dev, BTN_X, ~data & DB9_FIRE2);
- parport_write_control(port, DB9_NOSELECT); /* 2 */
- udelay(DB9_GENESIS6_DELAY);
- parport_write_control(port, DB9_NORMAL);
- udelay(DB9_GENESIS6_DELAY);
- parport_write_control(port, DB9_NOSELECT); /* 3 */
- udelay(DB9_GENESIS6_DELAY);
- data=parport_read_data(port);
- input_report_key(dev, BTN_Y, ~data & DB9_LEFT);
- input_report_key(dev, BTN_Z, ~data & DB9_DOWN);
- input_report_key(dev, BTN_MODE, ~data & DB9_UP);
- input_report_key(dev, BTN_START, ~data & DB9_RIGHT);
- parport_write_control(port, DB9_NORMAL);
- udelay(DB9_GENESIS6_DELAY);
- parport_write_control(port, DB9_NOSELECT); /* 4 */
- udelay(DB9_GENESIS6_DELAY);
- parport_write_control(port, DB9_NORMAL);
- break;
- case DB9_SATURN_PAD:
- parport_write_control(port, DB9_SATURN0);
- data = parport_read_data(port);
- input_report_key(dev, BTN_Y, ~data & DB9_LEFT);
- input_report_key(dev, BTN_Z, ~data & DB9_DOWN);
- input_report_key(dev, BTN_TL, ~data & DB9_UP);
- input_report_key(dev, BTN_TR, ~data & DB9_RIGHT);
- parport_write_control(port, DB9_SATURN2);
- data = parport_read_data(port);
- input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
- input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
-
- parport_write_control(port, DB9_NORMAL);
- data = parport_read_data(port);
- input_report_key(dev, BTN_A, ~data & DB9_LEFT);
- input_report_key(dev, BTN_B, ~data & DB9_UP);
- input_report_key(dev, BTN_C, ~data & DB9_DOWN);
- input_report_key(dev, BTN_X, ~data & DB9_RIGHT);
- break;
- case DB9_CD32_PAD:
- data=parport_read_data(port);
- input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
- input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
- parport_write_control(port, 0x0a);
- for (i = 0; i < 7; i++) {
- data = parport_read_data(port);
- parport_write_control(port, 0x02);
- parport_write_control(port, 0x0a);
- input_report_key(dev, db9_cd32_btn[i], ~data & DB9_FIRE2);
- }
- parport_write_control(port, 0x00);
- break;
- }
- mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
- }
- static int db9_open(struct input_dev *dev)
- {
- struct db9 *db9 = dev->private;
- struct parport *port = db9->pd->port;
- if (!db9->used++) {
- parport_claim(db9->pd);
- parport_write_data(port, 0xff);
- parport_data_reverse(port);
- parport_write_control(port, DB9_NORMAL);
- mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
- }
- return 0;
- }
- static void db9_close(struct input_dev *dev)
- {
- struct db9 *db9 = dev->private;
- struct parport *port = db9->pd->port;
- if (!--db9->used) {
- del_timer(&db9->timer);
- parport_write_control(port, 0x00);
- parport_data_forward(port);
- parport_release(db9->pd);
- }
- }
- static struct db9 __init *db9_probe(int *config)
- {
- struct db9 *db9;
- struct parport *pp;
- int i, j;
- if (config[0] < 0)
- return NULL;
- if (config[1] < 1 || config[1] >= DB9_MAX_PAD || !db9_buttons[config[1]]) {
- printk(KERN_ERR "db9.c: bad confign");
- return NULL;
- }
- for (pp = parport_enumerate(); pp && (config[0] > 0); pp = pp->next)
- config[0]--;
- if (!pp) {
- printk(KERN_ERR "db9.c: no such parportn");
- return NULL;
- }
- if (!(pp->modes & PARPORT_MODE_TRISTATE) && config[1] != DB9_MULTI_0802) {
- printk(KERN_ERR "db9.c: specified parport is not bidirectionaln");
- return NULL;
- }
-
- if (!(db9 = kmalloc(sizeof(struct db9), GFP_KERNEL)))
- return NULL;
- memset(db9, 0, sizeof(struct db9));
- db9->mode = config[1];
- init_timer(&db9->timer);
- db9->timer.data = (long) db9;
- db9->timer.function = db9_timer;
- db9->pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
- if (!db9->pd) {
- printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?n");
- kfree(db9);
- return NULL;
- }
- for (i = 0; i < 1 + (db9->mode == DB9_MULTI_0802_2); i++) {
- db9->dev[i].private = db9;
- db9->dev[i].open = db9_open;
- db9->dev[i].close = db9_close;
- db9->dev[i].name = db9_name[db9->mode];
- db9->dev[i].idbus = BUS_PARPORT;
- db9->dev[i].idvendor = 0x0002;
- db9->dev[i].idproduct = config[1];
- db9->dev[i].idversion = 0x0100;
- db9->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- db9->dev[i].absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
- for (j = 0; j < db9_buttons[db9->mode]; j++)
- set_bit(db9_btn[db9->mode][j], db9->dev[i].keybit);
- db9->dev[i].absmin[ABS_X] = -1; db9->dev[i].absmax[ABS_X] = 1;
- db9->dev[i].absmin[ABS_Y] = -1; db9->dev[i].absmax[ABS_Y] = 1;
- input_register_device(db9->dev + i);
- printk(KERN_INFO "input%d: %s on %sn",
- db9->dev[i].number, db9_name[db9->mode], db9->pd->port->name);
- }
- return db9;
- }
- #ifndef MODULE
- int __init db9_setup(char *str)
- {
- int i, ints[3];
- get_options(str, ARRAY_SIZE(ints), ints);
- for (i = 0; i <= ints[0] && i < 2; i++) db9[i] = ints[i + 1];
- return 1;
- }
- int __init db9_setup_2(char *str)
- {
- int i, ints[3];
- get_options(str, ARRAY_SIZE(ints), ints);
- for (i = 0; i <= ints[0] && i < 2; i++) db9_2[i] = ints[i + 1];
- return 1;
- }
- int __init db9_setup_3(char *str)
- {
- int i, ints[3];
- get_options(str, ARRAY_SIZE(ints), ints);
- for (i = 0; i <= ints[0] && i < 2; i++) db9_3[i] = ints[i + 1];
- return 1;
- }
- __setup("db9=", db9_setup);
- __setup("db9_2=", db9_setup_2);
- __setup("db9_3=", db9_setup_3);
- #endif
- int __init db9_init(void)
- {
- db9_base[0] = db9_probe(db9);
- db9_base[1] = db9_probe(db9_2);
- db9_base[2] = db9_probe(db9_3);
- if (db9_base[0] || db9_base[1] || db9_base[2])
- return 0;
- return -ENODEV;
- }
- void __exit db9_exit(void)
- {
- int i, j;
- for (i = 0; i < 3; i++)
- if (db9_base[i]) {
- for (j = 0; j < 1 + (db9_base[i]->mode == DB9_MULTI_0802_2); j++)
- input_unregister_device(db9_base[i]->dev + j);
- parport_unregister_device(db9_base[i]->pd);
- }
- }
- module_init(db9_init);
- module_exit(db9_exit);