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 000000000000..9d3f8c38cb09
--- /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);