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![Thomas Gleixner](/assets/img/avatar_default.png)
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
297 lines
6.9 KiB
C
297 lines
6.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2001 Vojtech Pavlik
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*
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* Based on the work of:
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* Toby Deshane
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*/
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/*
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* InterAct digital gamepad/joystick driver for Linux
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*/
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/*
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/gameport.h>
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#include <linux/input.h>
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#include <linux/jiffies.h>
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#define DRIVER_DESC "InterAct digital joystick driver"
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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#define INTERACT_MAX_START 600 /* 400 us */
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#define INTERACT_MAX_STROBE 60 /* 40 us */
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#define INTERACT_MAX_LENGTH 32 /* 32 bits */
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#define INTERACT_TYPE_HHFX 0 /* HammerHead/FX */
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#define INTERACT_TYPE_PP8D 1 /* ProPad 8 */
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struct interact {
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struct gameport *gameport;
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struct input_dev *dev;
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int bads;
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int reads;
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unsigned char type;
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unsigned char length;
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char phys[32];
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};
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static short interact_abs_hhfx[] =
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{ ABS_RX, ABS_RY, ABS_X, ABS_Y, ABS_HAT0X, ABS_HAT0Y, -1 };
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static short interact_abs_pp8d[] =
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{ ABS_X, ABS_Y, -1 };
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static short interact_btn_hhfx[] =
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{ 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 };
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static short interact_btn_pp8d[] =
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{ BTN_C, BTN_TL, BTN_TR, BTN_A, BTN_B, BTN_Y, BTN_Z, BTN_X, -1 };
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struct interact_type {
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int id;
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short *abs;
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short *btn;
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char *name;
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unsigned char length;
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unsigned char b8;
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};
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static struct interact_type interact_type[] = {
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{ 0x6202, interact_abs_hhfx, interact_btn_hhfx, "InterAct HammerHead/FX", 32, 4 },
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{ 0x53f8, interact_abs_pp8d, interact_btn_pp8d, "InterAct ProPad 8 Digital", 16, 0 },
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{ 0 }};
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/*
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* interact_read_packet() reads and InterAct joystick data.
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*/
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static int interact_read_packet(struct gameport *gameport, int length, u32 *data)
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{
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unsigned long flags;
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unsigned char u, v;
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unsigned int t, s;
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int i;
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i = 0;
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data[0] = data[1] = data[2] = 0;
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t = gameport_time(gameport, INTERACT_MAX_START);
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s = gameport_time(gameport, INTERACT_MAX_STROBE);
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local_irq_save(flags);
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gameport_trigger(gameport);
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v = gameport_read(gameport);
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while (t > 0 && i < length) {
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t--;
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u = v; v = gameport_read(gameport);
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if (v & ~u & 0x40) {
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data[0] = (data[0] << 1) | ((v >> 4) & 1);
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data[1] = (data[1] << 1) | ((v >> 5) & 1);
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data[2] = (data[2] << 1) | ((v >> 7) & 1);
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i++;
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t = s;
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}
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}
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local_irq_restore(flags);
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return i;
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}
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/*
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* interact_poll() reads and analyzes InterAct joystick data.
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*/
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static void interact_poll(struct gameport *gameport)
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{
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struct interact *interact = gameport_get_drvdata(gameport);
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struct input_dev *dev = interact->dev;
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u32 data[3];
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int i;
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interact->reads++;
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if (interact_read_packet(interact->gameport, interact->length, data) < interact->length) {
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interact->bads++;
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} else {
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for (i = 0; i < 3; i++)
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data[i] <<= INTERACT_MAX_LENGTH - interact->length;
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switch (interact->type) {
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case INTERACT_TYPE_HHFX:
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for (i = 0; i < 4; i++)
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input_report_abs(dev, interact_abs_hhfx[i], (data[i & 1] >> ((i >> 1) << 3)) & 0xff);
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for (i = 0; i < 2; i++)
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input_report_abs(dev, ABS_HAT0Y - i,
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((data[1] >> ((i << 1) + 17)) & 1) - ((data[1] >> ((i << 1) + 16)) & 1));
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for (i = 0; i < 8; i++)
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input_report_key(dev, interact_btn_hhfx[i], (data[0] >> (i + 16)) & 1);
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for (i = 0; i < 4; i++)
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input_report_key(dev, interact_btn_hhfx[i + 8], (data[1] >> (i + 20)) & 1);
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break;
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case INTERACT_TYPE_PP8D:
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for (i = 0; i < 2; i++)
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input_report_abs(dev, interact_abs_pp8d[i],
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((data[0] >> ((i << 1) + 20)) & 1) - ((data[0] >> ((i << 1) + 21)) & 1));
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for (i = 0; i < 8; i++)
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input_report_key(dev, interact_btn_pp8d[i], (data[1] >> (i + 16)) & 1);
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break;
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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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* interact_open() is a callback from the input open routine.
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*/
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static int interact_open(struct input_dev *dev)
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{
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struct interact *interact = input_get_drvdata(dev);
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gameport_start_polling(interact->gameport);
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return 0;
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}
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/*
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* interact_close() is a callback from the input close routine.
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*/
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static void interact_close(struct input_dev *dev)
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{
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struct interact *interact = input_get_drvdata(dev);
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gameport_stop_polling(interact->gameport);
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}
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/*
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* interact_connect() probes for InterAct joysticks.
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*/
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static int interact_connect(struct gameport *gameport, struct gameport_driver *drv)
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{
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struct interact *interact;
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struct input_dev *input_dev;
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__u32 data[3];
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int i, t;
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int err;
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interact = kzalloc(sizeof(struct interact), GFP_KERNEL);
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input_dev = input_allocate_device();
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if (!interact || !input_dev) {
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err = -ENOMEM;
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goto fail1;
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}
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interact->gameport = gameport;
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interact->dev = input_dev;
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gameport_set_drvdata(gameport, interact);
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err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
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if (err)
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goto fail1;
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i = interact_read_packet(gameport, INTERACT_MAX_LENGTH * 2, data);
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if (i != 32 || (data[0] >> 24) != 0x0c || (data[1] >> 24) != 0x02) {
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err = -ENODEV;
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goto fail2;
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}
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for (i = 0; interact_type[i].length; i++)
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if (interact_type[i].id == (data[2] >> 16))
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break;
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if (!interact_type[i].length) {
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printk(KERN_WARNING "interact.c: Unknown joystick on %s. [len %d d0 %08x d1 %08x i2 %08x]\n",
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gameport->phys, i, data[0], data[1], data[2]);
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err = -ENODEV;
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goto fail2;
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}
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gameport_set_poll_handler(gameport, interact_poll);
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gameport_set_poll_interval(gameport, 20);
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snprintf(interact->phys, sizeof(interact->phys), "%s/input0", gameport->phys);
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interact->type = i;
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interact->length = interact_type[i].length;
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input_dev->name = interact_type[i].name;
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input_dev->phys = interact->phys;
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input_dev->id.bustype = BUS_GAMEPORT;
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input_dev->id.vendor = GAMEPORT_ID_VENDOR_INTERACT;
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input_dev->id.product = interact_type[i].id;
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input_dev->id.version = 0x0100;
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input_dev->dev.parent = &gameport->dev;
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input_set_drvdata(input_dev, interact);
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input_dev->open = interact_open;
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input_dev->close = interact_close;
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input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
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for (i = 0; (t = interact_type[interact->type].abs[i]) >= 0; i++) {
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if (i < interact_type[interact->type].b8)
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input_set_abs_params(input_dev, t, 0, 255, 0, 0);
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else
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input_set_abs_params(input_dev, t, -1, 1, 0, 0);
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}
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for (i = 0; (t = interact_type[interact->type].btn[i]) >= 0; i++)
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__set_bit(t, input_dev->keybit);
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err = input_register_device(interact->dev);
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if (err)
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goto fail2;
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return 0;
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fail2: gameport_close(gameport);
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fail1: gameport_set_drvdata(gameport, NULL);
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input_free_device(input_dev);
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kfree(interact);
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return err;
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}
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static void interact_disconnect(struct gameport *gameport)
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{
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struct interact *interact = gameport_get_drvdata(gameport);
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input_unregister_device(interact->dev);
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gameport_close(gameport);
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gameport_set_drvdata(gameport, NULL);
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kfree(interact);
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}
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static struct gameport_driver interact_drv = {
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.driver = {
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.name = "interact",
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},
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.description = DRIVER_DESC,
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.connect = interact_connect,
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.disconnect = interact_disconnect,
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};
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module_gameport_driver(interact_drv);
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