11a59d1b8SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later
21da177e4SLinus Torvalds /*
31da177e4SLinus Torvalds * Copyright (c) 2001 Vojtech Pavlik
41da177e4SLinus Torvalds *
51da177e4SLinus Torvalds * Based on the work of:
61da177e4SLinus Torvalds * Toby Deshane
71da177e4SLinus Torvalds */
81da177e4SLinus Torvalds
91da177e4SLinus Torvalds /*
101da177e4SLinus Torvalds * InterAct digital gamepad/joystick driver for Linux
111da177e4SLinus Torvalds */
121da177e4SLinus Torvalds
131da177e4SLinus Torvalds #include <linux/kernel.h>
141da177e4SLinus Torvalds #include <linux/slab.h>
151da177e4SLinus Torvalds #include <linux/module.h>
161da177e4SLinus Torvalds #include <linux/delay.h>
171da177e4SLinus Torvalds #include <linux/gameport.h>
181da177e4SLinus Torvalds #include <linux/input.h>
194e57b681STim Schmielau #include <linux/jiffies.h>
201da177e4SLinus Torvalds
211da177e4SLinus Torvalds #define DRIVER_DESC "InterAct digital joystick driver"
221da177e4SLinus Torvalds
231da177e4SLinus Torvalds MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
241da177e4SLinus Torvalds MODULE_DESCRIPTION(DRIVER_DESC);
251da177e4SLinus Torvalds MODULE_LICENSE("GPL");
261da177e4SLinus Torvalds
271da177e4SLinus Torvalds #define INTERACT_MAX_START 600 /* 400 us */
281da177e4SLinus Torvalds #define INTERACT_MAX_STROBE 60 /* 40 us */
291da177e4SLinus Torvalds #define INTERACT_MAX_LENGTH 32 /* 32 bits */
301da177e4SLinus Torvalds
311da177e4SLinus Torvalds #define INTERACT_TYPE_HHFX 0 /* HammerHead/FX */
321da177e4SLinus Torvalds #define INTERACT_TYPE_PP8D 1 /* ProPad 8 */
331da177e4SLinus Torvalds
341da177e4SLinus Torvalds struct interact {
351da177e4SLinus Torvalds struct gameport *gameport;
3617dd3f0fSDmitry Torokhov struct input_dev *dev;
371da177e4SLinus Torvalds int bads;
381da177e4SLinus Torvalds int reads;
391da177e4SLinus Torvalds unsigned char type;
401da177e4SLinus Torvalds unsigned char length;
411da177e4SLinus Torvalds char phys[32];
421da177e4SLinus Torvalds };
431da177e4SLinus Torvalds
441da177e4SLinus Torvalds static short interact_abs_hhfx[] =
451da177e4SLinus Torvalds { ABS_RX, ABS_RY, ABS_X, ABS_Y, ABS_HAT0X, ABS_HAT0Y, -1 };
461da177e4SLinus Torvalds static short interact_abs_pp8d[] =
471da177e4SLinus Torvalds { ABS_X, ABS_Y, -1 };
481da177e4SLinus Torvalds
491da177e4SLinus Torvalds static short interact_btn_hhfx[] =
501da177e4SLinus Torvalds { 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 };
511da177e4SLinus Torvalds static short interact_btn_pp8d[] =
521da177e4SLinus Torvalds { BTN_C, BTN_TL, BTN_TR, BTN_A, BTN_B, BTN_Y, BTN_Z, BTN_X, -1 };
531da177e4SLinus Torvalds
541da177e4SLinus Torvalds struct interact_type {
551da177e4SLinus Torvalds int id;
561da177e4SLinus Torvalds short *abs;
571da177e4SLinus Torvalds short *btn;
581da177e4SLinus Torvalds char *name;
591da177e4SLinus Torvalds unsigned char length;
601da177e4SLinus Torvalds unsigned char b8;
611da177e4SLinus Torvalds };
621da177e4SLinus Torvalds
631da177e4SLinus Torvalds static struct interact_type interact_type[] = {
641da177e4SLinus Torvalds { 0x6202, interact_abs_hhfx, interact_btn_hhfx, "InterAct HammerHead/FX", 32, 4 },
651da177e4SLinus Torvalds { 0x53f8, interact_abs_pp8d, interact_btn_pp8d, "InterAct ProPad 8 Digital", 16, 0 },
661da177e4SLinus Torvalds { 0 }};
671da177e4SLinus Torvalds
681da177e4SLinus Torvalds /*
691da177e4SLinus Torvalds * interact_read_packet() reads and InterAct joystick data.
701da177e4SLinus Torvalds */
711da177e4SLinus Torvalds
interact_read_packet(struct gameport * gameport,int length,u32 * data)721da177e4SLinus Torvalds static int interact_read_packet(struct gameport *gameport, int length, u32 *data)
731da177e4SLinus Torvalds {
741da177e4SLinus Torvalds unsigned long flags;
751da177e4SLinus Torvalds unsigned char u, v;
761da177e4SLinus Torvalds unsigned int t, s;
771da177e4SLinus Torvalds int i;
781da177e4SLinus Torvalds
791da177e4SLinus Torvalds i = 0;
801da177e4SLinus Torvalds data[0] = data[1] = data[2] = 0;
811da177e4SLinus Torvalds t = gameport_time(gameport, INTERACT_MAX_START);
821da177e4SLinus Torvalds s = gameport_time(gameport, INTERACT_MAX_STROBE);
831da177e4SLinus Torvalds
841da177e4SLinus Torvalds local_irq_save(flags);
851da177e4SLinus Torvalds gameport_trigger(gameport);
861da177e4SLinus Torvalds v = gameport_read(gameport);
871da177e4SLinus Torvalds
881da177e4SLinus Torvalds while (t > 0 && i < length) {
891da177e4SLinus Torvalds t--;
901da177e4SLinus Torvalds u = v; v = gameport_read(gameport);
911da177e4SLinus Torvalds if (v & ~u & 0x40) {
921da177e4SLinus Torvalds data[0] = (data[0] << 1) | ((v >> 4) & 1);
931da177e4SLinus Torvalds data[1] = (data[1] << 1) | ((v >> 5) & 1);
941da177e4SLinus Torvalds data[2] = (data[2] << 1) | ((v >> 7) & 1);
951da177e4SLinus Torvalds i++;
961da177e4SLinus Torvalds t = s;
971da177e4SLinus Torvalds }
981da177e4SLinus Torvalds }
991da177e4SLinus Torvalds
1001da177e4SLinus Torvalds local_irq_restore(flags);
1011da177e4SLinus Torvalds
1021da177e4SLinus Torvalds return i;
1031da177e4SLinus Torvalds }
1041da177e4SLinus Torvalds
1051da177e4SLinus Torvalds /*
1061da177e4SLinus Torvalds * interact_poll() reads and analyzes InterAct joystick data.
1071da177e4SLinus Torvalds */
1081da177e4SLinus Torvalds
interact_poll(struct gameport * gameport)1091da177e4SLinus Torvalds static void interact_poll(struct gameport *gameport)
1101da177e4SLinus Torvalds {
1111da177e4SLinus Torvalds struct interact *interact = gameport_get_drvdata(gameport);
11217dd3f0fSDmitry Torokhov struct input_dev *dev = interact->dev;
1131da177e4SLinus Torvalds u32 data[3];
1141da177e4SLinus Torvalds int i;
1151da177e4SLinus Torvalds
1161da177e4SLinus Torvalds interact->reads++;
1171da177e4SLinus Torvalds
1181da177e4SLinus Torvalds if (interact_read_packet(interact->gameport, interact->length, data) < interact->length) {
1191da177e4SLinus Torvalds interact->bads++;
1201da177e4SLinus Torvalds } else {
1211da177e4SLinus Torvalds
1221da177e4SLinus Torvalds for (i = 0; i < 3; i++)
1231da177e4SLinus Torvalds data[i] <<= INTERACT_MAX_LENGTH - interact->length;
1241da177e4SLinus Torvalds
1251da177e4SLinus Torvalds switch (interact->type) {
1261da177e4SLinus Torvalds
1271da177e4SLinus Torvalds case INTERACT_TYPE_HHFX:
1281da177e4SLinus Torvalds
1291da177e4SLinus Torvalds for (i = 0; i < 4; i++)
1301da177e4SLinus Torvalds input_report_abs(dev, interact_abs_hhfx[i], (data[i & 1] >> ((i >> 1) << 3)) & 0xff);
1311da177e4SLinus Torvalds
1321da177e4SLinus Torvalds for (i = 0; i < 2; i++)
1331da177e4SLinus Torvalds input_report_abs(dev, ABS_HAT0Y - i,
1341da177e4SLinus Torvalds ((data[1] >> ((i << 1) + 17)) & 1) - ((data[1] >> ((i << 1) + 16)) & 1));
1351da177e4SLinus Torvalds
1361da177e4SLinus Torvalds for (i = 0; i < 8; i++)
1371da177e4SLinus Torvalds input_report_key(dev, interact_btn_hhfx[i], (data[0] >> (i + 16)) & 1);
1381da177e4SLinus Torvalds
1391da177e4SLinus Torvalds for (i = 0; i < 4; i++)
1401da177e4SLinus Torvalds input_report_key(dev, interact_btn_hhfx[i + 8], (data[1] >> (i + 20)) & 1);
1411da177e4SLinus Torvalds
1421da177e4SLinus Torvalds break;
1431da177e4SLinus Torvalds
1441da177e4SLinus Torvalds case INTERACT_TYPE_PP8D:
1451da177e4SLinus Torvalds
1461da177e4SLinus Torvalds for (i = 0; i < 2; i++)
1471da177e4SLinus Torvalds input_report_abs(dev, interact_abs_pp8d[i],
1481da177e4SLinus Torvalds ((data[0] >> ((i << 1) + 20)) & 1) - ((data[0] >> ((i << 1) + 21)) & 1));
1491da177e4SLinus Torvalds
1501da177e4SLinus Torvalds for (i = 0; i < 8; i++)
1511da177e4SLinus Torvalds input_report_key(dev, interact_btn_pp8d[i], (data[1] >> (i + 16)) & 1);
1521da177e4SLinus Torvalds
1531da177e4SLinus Torvalds break;
1541da177e4SLinus Torvalds }
1551da177e4SLinus Torvalds }
1561da177e4SLinus Torvalds
1571da177e4SLinus Torvalds input_sync(dev);
1581da177e4SLinus Torvalds }
1591da177e4SLinus Torvalds
1601da177e4SLinus Torvalds /*
1611da177e4SLinus Torvalds * interact_open() is a callback from the input open routine.
1621da177e4SLinus Torvalds */
1631da177e4SLinus Torvalds
interact_open(struct input_dev * dev)1641da177e4SLinus Torvalds static int interact_open(struct input_dev *dev)
1651da177e4SLinus Torvalds {
1668715c1cfSDmitry Torokhov struct interact *interact = input_get_drvdata(dev);
1671da177e4SLinus Torvalds
1681da177e4SLinus Torvalds gameport_start_polling(interact->gameport);
1691da177e4SLinus Torvalds return 0;
1701da177e4SLinus Torvalds }
1711da177e4SLinus Torvalds
1721da177e4SLinus Torvalds /*
1731da177e4SLinus Torvalds * interact_close() is a callback from the input close routine.
1741da177e4SLinus Torvalds */
1751da177e4SLinus Torvalds
interact_close(struct input_dev * dev)1761da177e4SLinus Torvalds static void interact_close(struct input_dev *dev)
1771da177e4SLinus Torvalds {
1788715c1cfSDmitry Torokhov struct interact *interact = input_get_drvdata(dev);
1791da177e4SLinus Torvalds
1801da177e4SLinus Torvalds gameport_stop_polling(interact->gameport);
1811da177e4SLinus Torvalds }
1821da177e4SLinus Torvalds
1831da177e4SLinus Torvalds /*
1841da177e4SLinus Torvalds * interact_connect() probes for InterAct joysticks.
1851da177e4SLinus Torvalds */
1861da177e4SLinus Torvalds
interact_connect(struct gameport * gameport,struct gameport_driver * drv)1871da177e4SLinus Torvalds static int interact_connect(struct gameport *gameport, struct gameport_driver *drv)
1881da177e4SLinus Torvalds {
1891da177e4SLinus Torvalds struct interact *interact;
19017dd3f0fSDmitry Torokhov struct input_dev *input_dev;
1911da177e4SLinus Torvalds __u32 data[3];
1921da177e4SLinus Torvalds int i, t;
1931da177e4SLinus Torvalds int err;
1941da177e4SLinus Torvalds
19517dd3f0fSDmitry Torokhov interact = kzalloc(sizeof(struct interact), GFP_KERNEL);
19617dd3f0fSDmitry Torokhov input_dev = input_allocate_device();
19717dd3f0fSDmitry Torokhov if (!interact || !input_dev) {
19817dd3f0fSDmitry Torokhov err = -ENOMEM;
19917dd3f0fSDmitry Torokhov goto fail1;
20017dd3f0fSDmitry Torokhov }
2011da177e4SLinus Torvalds
2021da177e4SLinus Torvalds interact->gameport = gameport;
20317dd3f0fSDmitry Torokhov interact->dev = input_dev;
2041da177e4SLinus Torvalds
2051da177e4SLinus Torvalds gameport_set_drvdata(gameport, interact);
2061da177e4SLinus Torvalds
2071da177e4SLinus Torvalds err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
2081da177e4SLinus Torvalds if (err)
2091da177e4SLinus Torvalds goto fail1;
2101da177e4SLinus Torvalds
2111da177e4SLinus Torvalds i = interact_read_packet(gameport, INTERACT_MAX_LENGTH * 2, data);
2121da177e4SLinus Torvalds
2131da177e4SLinus Torvalds if (i != 32 || (data[0] >> 24) != 0x0c || (data[1] >> 24) != 0x02) {
2141da177e4SLinus Torvalds err = -ENODEV;
2151da177e4SLinus Torvalds goto fail2;
2161da177e4SLinus Torvalds }
2171da177e4SLinus Torvalds
2181da177e4SLinus Torvalds for (i = 0; interact_type[i].length; i++)
2191da177e4SLinus Torvalds if (interact_type[i].id == (data[2] >> 16))
2201da177e4SLinus Torvalds break;
2211da177e4SLinus Torvalds
2221da177e4SLinus Torvalds if (!interact_type[i].length) {
2231da177e4SLinus Torvalds printk(KERN_WARNING "interact.c: Unknown joystick on %s. [len %d d0 %08x d1 %08x i2 %08x]\n",
2241da177e4SLinus Torvalds gameport->phys, i, data[0], data[1], data[2]);
2251da177e4SLinus Torvalds err = -ENODEV;
2261da177e4SLinus Torvalds goto fail2;
2271da177e4SLinus Torvalds }
2281da177e4SLinus Torvalds
2291da177e4SLinus Torvalds gameport_set_poll_handler(gameport, interact_poll);
2301da177e4SLinus Torvalds gameport_set_poll_interval(gameport, 20);
2311da177e4SLinus Torvalds
23210ca4c0aSDmitry Torokhov snprintf(interact->phys, sizeof(interact->phys), "%s/input0", gameport->phys);
2331da177e4SLinus Torvalds
2341da177e4SLinus Torvalds interact->type = i;
2351da177e4SLinus Torvalds interact->length = interact_type[i].length;
2361da177e4SLinus Torvalds
23717dd3f0fSDmitry Torokhov input_dev->name = interact_type[i].name;
23817dd3f0fSDmitry Torokhov input_dev->phys = interact->phys;
23917dd3f0fSDmitry Torokhov input_dev->id.bustype = BUS_GAMEPORT;
24017dd3f0fSDmitry Torokhov input_dev->id.vendor = GAMEPORT_ID_VENDOR_INTERACT;
24117dd3f0fSDmitry Torokhov input_dev->id.product = interact_type[i].id;
24217dd3f0fSDmitry Torokhov input_dev->id.version = 0x0100;
243935e658eSDmitry Torokhov input_dev->dev.parent = &gameport->dev;
2448715c1cfSDmitry Torokhov
2458715c1cfSDmitry Torokhov input_set_drvdata(input_dev, interact);
2461da177e4SLinus Torvalds
24717dd3f0fSDmitry Torokhov input_dev->open = interact_open;
24817dd3f0fSDmitry Torokhov input_dev->close = interact_close;
2491da177e4SLinus Torvalds
2507b19ada2SJiri Slaby input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
2511da177e4SLinus Torvalds
2521da177e4SLinus Torvalds for (i = 0; (t = interact_type[interact->type].abs[i]) >= 0; i++) {
253987a6c02SDaniel Mack if (i < interact_type[interact->type].b8)
254987a6c02SDaniel Mack input_set_abs_params(input_dev, t, 0, 255, 0, 0);
255987a6c02SDaniel Mack else
256987a6c02SDaniel Mack input_set_abs_params(input_dev, t, -1, 1, 0, 0);
2571da177e4SLinus Torvalds }
2581da177e4SLinus Torvalds
2591da177e4SLinus Torvalds for (i = 0; (t = interact_type[interact->type].btn[i]) >= 0; i++)
260987a6c02SDaniel Mack __set_bit(t, input_dev->keybit);
2611da177e4SLinus Torvalds
262127278ceSDmitry Torokhov err = input_register_device(interact->dev);
263127278ceSDmitry Torokhov if (err)
264127278ceSDmitry Torokhov goto fail2;
2651da177e4SLinus Torvalds
2661da177e4SLinus Torvalds return 0;
2671da177e4SLinus Torvalds
2681da177e4SLinus Torvalds fail2: gameport_close(gameport);
2691da177e4SLinus Torvalds fail1: gameport_set_drvdata(gameport, NULL);
27017dd3f0fSDmitry Torokhov input_free_device(input_dev);
2711da177e4SLinus Torvalds kfree(interact);
2721da177e4SLinus Torvalds return err;
2731da177e4SLinus Torvalds }
2741da177e4SLinus Torvalds
interact_disconnect(struct gameport * gameport)2751da177e4SLinus Torvalds static void interact_disconnect(struct gameport *gameport)
2761da177e4SLinus Torvalds {
2771da177e4SLinus Torvalds struct interact *interact = gameport_get_drvdata(gameport);
2781da177e4SLinus Torvalds
27917dd3f0fSDmitry Torokhov input_unregister_device(interact->dev);
2801da177e4SLinus Torvalds gameport_close(gameport);
2811da177e4SLinus Torvalds gameport_set_drvdata(gameport, NULL);
2821da177e4SLinus Torvalds kfree(interact);
2831da177e4SLinus Torvalds }
2841da177e4SLinus Torvalds
2851da177e4SLinus Torvalds static struct gameport_driver interact_drv = {
2861da177e4SLinus Torvalds .driver = {
2871da177e4SLinus Torvalds .name = "interact",
2881da177e4SLinus Torvalds },
2891da177e4SLinus Torvalds .description = DRIVER_DESC,
2901da177e4SLinus Torvalds .connect = interact_connect,
2911da177e4SLinus Torvalds .disconnect = interact_disconnect,
2921da177e4SLinus Torvalds };
2931da177e4SLinus Torvalds
29498a84131SAxel Lin module_gameport_driver(interact_drv);
295