diff options
Diffstat (limited to 'drivers/input/joystick/interact.c')
| -rw-r--r-- | drivers/input/joystick/interact.c | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/drivers/input/joystick/interact.c b/drivers/input/joystick/interact.c new file mode 100644 index 0000000..9d3f8c3 --- /dev/null +++ b/drivers/input/joystick/interact.c @@ -0,0 +1,322 @@ +/* + * $Id: interact.c,v 1.16 2002/01/22 20:28:25 vojtech Exp $ + * + * Copyright (c) 2001 Vojtech Pavlik + * + * Based on the work of: + * Toby Deshane + */ + +/* + * InterAct digital gamepad/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@ucw.cz>, or by paper mail: + * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/gameport.h> +#include <linux/input.h> + +#define DRIVER_DESC "InterAct digital joystick driver" + +MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + +#define INTERACT_MAX_START 600 /* 400 us */ +#define INTERACT_MAX_STROBE 60 /* 40 us */ +#define INTERACT_MAX_LENGTH 32 /* 32 bits */ + +#define INTERACT_TYPE_HHFX 0 /* HammerHead/FX */ +#define INTERACT_TYPE_PP8D 1 /* ProPad 8 */ + +struct interact { + struct gameport *gameport; + struct input_dev dev; + int bads; + int reads; + unsigned char type; + unsigned char length; + char phys[32]; +}; + +static short interact_abs_hhfx[] = + { ABS_RX, ABS_RY, ABS_X, ABS_Y, ABS_HAT0X, ABS_HAT0Y, -1 }; +static short interact_abs_pp8d[] = + { ABS_X, ABS_Y, -1 }; + +static short interact_btn_hhfx[] = + { BTN_TR, BTN_X, BTN_Y, BTN_Z, BTN_A, BTN_B, BTN_C, BTN_TL, BTN_TL2, BTN_TR2, BTN_MODE, BTN_SELECT, -1 }; +static short interact_btn_pp8d[] = + { BTN_C, BTN_TL, BTN_TR, BTN_A, BTN_B, BTN_Y, BTN_Z, BTN_X, -1 }; + +struct interact_type { + int id; + short *abs; + short *btn; + char *name; + unsigned char length; + unsigned char b8; +}; + +static struct interact_type interact_type[] = { + { 0x6202, interact_abs_hhfx, interact_btn_hhfx, "InterAct HammerHead/FX", 32, 4 }, + { 0x53f8, interact_abs_pp8d, interact_btn_pp8d, "InterAct ProPad 8 Digital", 16, 0 }, + { 0 }}; + +/* + * interact_read_packet() reads and InterAct joystick data. + */ + +static int interact_read_packet(struct gameport *gameport, int length, u32 *data) +{ + unsigned long flags; + unsigned char u, v; + unsigned int t, s; + int i; + + i = 0; + data[0] = data[1] = data[2] = 0; + t = gameport_time(gameport, INTERACT_MAX_START); + s = gameport_time(gameport, INTERACT_MAX_STROBE); + + local_irq_save(flags); + gameport_trigger(gameport); + v = gameport_read(gameport); + + while (t > 0 && i < length) { + t--; + u = v; v = gameport_read(gameport); + if (v & ~u & 0x40) { + data[0] = (data[0] << 1) | ((v >> 4) & 1); + data[1] = (data[1] << 1) | ((v >> 5) & 1); + data[2] = (data[2] << 1) | ((v >> 7) & 1); + i++; + t = s; + } + } + + local_irq_restore(flags); + + return i; +} + +/* + * interact_poll() reads and analyzes InterAct joystick data. + */ + +static void interact_poll(struct gameport *gameport) +{ + struct interact *interact = gameport_get_drvdata(gameport); + struct input_dev *dev = &interact->dev; + u32 data[3]; + int i; + + interact->reads++; + + if (interact_read_packet(interact->gameport, interact->length, data) < interact->length) { + interact->bads++; + } else { + + for (i = 0; i < 3; i++) + data[i] <<= INTERACT_MAX_LENGTH - interact->length; + + switch (interact->type) { + + case INTERACT_TYPE_HHFX: + + for (i = 0; i < 4; i++) + input_report_abs(dev, interact_abs_hhfx[i], (data[i & 1] >> ((i >> 1) << 3)) & 0xff); + + for (i = 0; i < 2; i++) + input_report_abs(dev, ABS_HAT0Y - i, + ((data[1] >> ((i << 1) + 17)) & 1) - ((data[1] >> ((i << 1) + 16)) & 1)); + + for (i = 0; i < 8; i++) + input_report_key(dev, interact_btn_hhfx[i], (data[0] >> (i + 16)) & 1); + + for (i = 0; i < 4; i++) + input_report_key(dev, interact_btn_hhfx[i + 8], (data[1] >> (i + 20)) & 1); + + break; + + case INTERACT_TYPE_PP8D: + + for (i = 0; i < 2; i++) + input_report_abs(dev, interact_abs_pp8d[i], + ((data[0] >> ((i << 1) + 20)) & 1) - ((data[0] >> ((i << 1) + 21)) & 1)); + + for (i = 0; i < 8; i++) + input_report_key(dev, interact_btn_pp8d[i], (data[1] >> (i + 16)) & 1); + + break; + } + } + + input_sync(dev); +} + +/* + * interact_open() is a callback from the input open routine. + */ + +static int interact_open(struct input_dev *dev) +{ + struct interact *interact = dev->private; + + gameport_start_polling(interact->gameport); + return 0; +} + +/* + * interact_close() is a callback from the input close routine. + */ + +static void interact_close(struct input_dev *dev) +{ + struct interact *interact = dev->private; + + gameport_stop_polling(interact->gameport); +} + +/* + * interact_connect() probes for InterAct joysticks. + */ + +static int interact_connect(struct gameport *gameport, struct gameport_driver *drv) +{ + struct interact *interact; + __u32 data[3]; + int i, t; + int err; + + if (!(interact = kcalloc(1, sizeof(struct interact), GFP_KERNEL))) + return -ENOMEM; + + interact->gameport = gameport; + + gameport_set_drvdata(gameport, interact); + + err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW); + if (err) + goto fail1; + + i = interact_read_packet(gameport, INTERACT_MAX_LENGTH * 2, data); + + if (i != 32 || (data[0] >> 24) != 0x0c || (data[1] >> 24) != 0x02) { + err = -ENODEV; + goto fail2; + } + + for (i = 0; interact_type[i].length; i++) + if (interact_type[i].id == (data[2] >> 16)) + break; + + if (!interact_type[i].length) { + printk(KERN_WARNING "interact.c: Unknown joystick on %s. [len %d d0 %08x d1 %08x i2 %08x]\n", + gameport->phys, i, data[0], data[1], data[2]); + err = -ENODEV; + goto fail2; + } + + gameport_set_poll_handler(gameport, interact_poll); + gameport_set_poll_interval(gameport, 20); + + sprintf(interact->phys, "%s/input0", gameport->phys); + + interact->type = i; + interact->length = interact_type[i].length; + + interact->dev.private = interact; + interact->dev.open = interact_open; + interact->dev.close = interact_close; + + interact->dev.name = interact_type[i].name; + interact->dev.phys = interact->phys; + interact->dev.id.bustype = BUS_GAMEPORT; + interact->dev.id.vendor = GAMEPORT_ID_VENDOR_INTERACT; + interact->dev.id.product = interact_type[i].id; + interact->dev.id.version = 0x0100; + + interact->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); + + for (i = 0; (t = interact_type[interact->type].abs[i]) >= 0; i++) { + set_bit(t, interact->dev.absbit); + if (i < interact_type[interact->type].b8) { + interact->dev.absmin[t] = 0; + interact->dev.absmax[t] = 255; + } else { + interact->dev.absmin[t] = -1; + interact->dev.absmax[t] = 1; + } + } + + for (i = 0; (t = interact_type[interact->type].btn[i]) >= 0; i++) + set_bit(t, interact->dev.keybit); + + input_register_device(&interact->dev); + printk(KERN_INFO "input: %s on %s\n", + interact_type[interact->type].name, gameport->phys); + + return 0; + +fail2: gameport_close(gameport); +fail1: gameport_set_drvdata(gameport, NULL); + kfree(interact); + return err; +} + +static void interact_disconnect(struct gameport *gameport) +{ + struct interact *interact = gameport_get_drvdata(gameport); + + input_unregister_device(&interact->dev); + gameport_close(gameport); + gameport_set_drvdata(gameport, NULL); + kfree(interact); +} + +static struct gameport_driver interact_drv = { + .driver = { + .name = "interact", + }, + .description = DRIVER_DESC, + .connect = interact_connect, + .disconnect = interact_disconnect, +}; + +static int __init interact_init(void) +{ + gameport_register_driver(&interact_drv); + return 0; +} + +static void __exit interact_exit(void) +{ + gameport_unregister_driver(&interact_drv); +} + +module_init(interact_init); +module_exit(interact_exit); |
