1 files changed, 258 insertions, 0 deletions

diff --git a/drivers/input/joystick/turbografx.c b/drivers/input/joystick/turbografx.c
new file mode 100644
index 000000000000..dd88b9cb49fa
--- /dev/null
+++ b/drivers/input/joystick/turbografx.c
@@ -0,0 +1,258 @@
+/*
+ * $Id: turbografx.c,v 1.14 2002/01/22 20:30:39 vojtech Exp $
+ *
+ *  Copyright (c) 1998-2001 Vojtech Pavlik
+ *
+ *  Based on the work of:
+ *      Steffen Schwenke
+ */
+
+/*
+ * TurboGraFX parallel port interface 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/parport.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("TurboGraFX parallel port interface driver");
+MODULE_LICENSE("GPL");
+
+static int tgfx[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 };
+static int tgfx_nargs __initdata = 0;
+module_param_array_named(map, tgfx, int, &tgfx_nargs, 0);
+MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<js1>,<js2>,..<js7>");
+
+static int tgfx_2[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 };
+static int tgfx_nargs_2 __initdata = 0;
+module_param_array_named(map2, tgfx_2, int, &tgfx_nargs_2, 0);
+MODULE_PARM_DESC(map2, "Describes second set of devices");
+
+static int tgfx_3[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 };
+static int tgfx_nargs_3 __initdata = 0;
+module_param_array_named(map3, tgfx_3, int, &tgfx_nargs_3, 0);
+MODULE_PARM_DESC(map3, "Describes third set of devices");
+
+__obsolete_setup("tgfx=");
+__obsolete_setup("tgfx_2=");
+__obsolete_setup("tgfx_3=");
+
+#define TGFX_REFRESH_TIME       HZ/100  /* 10 ms */
+
+#define TGFX_TRIGGER            0x08
+#define TGFX_UP                 0x10
+#define TGFX_DOWN               0x20
+#define TGFX_LEFT               0x40
+#define TGFX_RIGHT              0x80
+
+#define TGFX_THUMB              0x02
+#define TGFX_THUMB2             0x04
+#define TGFX_TOP                0x01
+#define TGFX_TOP2               0x08
+
+static int tgfx_buttons[] = { BTN_TRIGGER, BTN_THUMB, BTN_THUMB2, BTN_TOP, BTN_TOP2 };
+static char *tgfx_name = "TurboGraFX Multisystem joystick";
+
+static struct tgfx {
+        struct pardevice *pd;
+        struct timer_list timer;
+        struct input_dev dev[7];
+        char phys[7][32];
+        int sticks;
+        int used;
+} *tgfx_base[3];
+
+/*
+ * tgfx_timer() reads and analyzes TurboGraFX joystick data.
+ */
+
+static void tgfx_timer(unsigned long private)
+{
+        struct tgfx *tgfx = (void *) private;
+        struct input_dev *dev;
+        int data1, data2, i;
+
+        for (i = 0; i < 7; i++)
+                if (tgfx->sticks & (1 << i)) {
+
+                        dev = tgfx->dev + i;
+
+                        parport_write_data(tgfx->pd->port, ~(1 << i));
+                        data1 = parport_read_status(tgfx->pd->port) ^ 0x7f;
+                        data2 = parport_read_control(tgfx->pd->port) ^ 0x04;    /* CAVEAT parport */
+
+                        input_report_abs(dev, ABS_X, !!(data1 & TGFX_RIGHT) - !!(data1 & TGFX_LEFT));
+                        input_report_abs(dev, ABS_Y, !!(data1 & TGFX_DOWN ) - !!(data1 & TGFX_UP  ));
+
+                        input_report_key(dev, BTN_TRIGGER, (data1 & TGFX_TRIGGER));
+                        input_report_key(dev, BTN_THUMB,   (data2 & TGFX_THUMB  ));
+                        input_report_key(dev, BTN_THUMB2,  (data2 & TGFX_THUMB2 ));
+                        input_report_key(dev, BTN_TOP,     (data2 & TGFX_TOP    ));
+                        input_report_key(dev, BTN_TOP2,    (data2 & TGFX_TOP2   ));
+
+                        input_sync(dev);
+                }
+
+        mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);
+}
+
+static int tgfx_open(struct input_dev *dev)
+{
+        struct tgfx *tgfx = dev->private;
+        if (!tgfx->used++) {
+                parport_claim(tgfx->pd);
+                parport_write_control(tgfx->pd->port, 0x04);
+                mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);
+        }
+        return 0;
+}
+
+static void tgfx_close(struct input_dev *dev)
+{
+        struct tgfx *tgfx = dev->private;
+        if (!--tgfx->used) {
+                del_timer(&tgfx->timer);
+                parport_write_control(tgfx->pd->port, 0x00);
+                parport_release(tgfx->pd);
+        }
+}
+
+/*
+ * tgfx_probe() probes for tg gamepads.
+ */
+
+static struct tgfx __init *tgfx_probe(int *config, int nargs)
+{
+        struct tgfx *tgfx;
+        struct parport *pp;
+        int i, j;
+
+        if (config[0] < 0)
+                return NULL;
+
+        if (nargs < 2) {
+                printk(KERN_ERR "turbografx.c: at least one joystick must be specified\n");
+                return NULL;
+        }
+
+        pp = parport_find_number(config[0]);
+
+        if (!pp) {
+                printk(KERN_ERR "turbografx.c: no such parport\n");
+                return NULL;
+        }
+
+        if (!(tgfx = kmalloc(sizeof(struct tgfx), GFP_KERNEL))) {
+                parport_put_port(pp);
+                return NULL;
+        }
+        memset(tgfx, 0, sizeof(struct tgfx));
+
+        tgfx->pd = parport_register_device(pp, "turbografx", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
+
+        parport_put_port(pp);
+
+        if (!tgfx->pd) {
+                printk(KERN_ERR "turbografx.c: parport busy already - lp.o loaded?\n");
+                kfree(tgfx);
+                return NULL;
+        }
+
+        init_timer(&tgfx->timer);
+        tgfx->timer.data = (long) tgfx;
+        tgfx->timer.function = tgfx_timer;
+
+        tgfx->sticks = 0;
+
+        for (i = 0; i < nargs - 1; i++)
+                if (config[i+1] > 0 && config[i+1] < 6) {
+
+                        tgfx->sticks |= (1 << i);
+
+                        tgfx->dev[i].private = tgfx;
+                        tgfx->dev[i].open = tgfx_open;
+                        tgfx->dev[i].close = tgfx_close;
+
+                        sprintf(tgfx->phys[i], "%s/input0", tgfx->pd->port->name);
+
+                        tgfx->dev[i].name = tgfx_name;
+                        tgfx->dev[i].phys = tgfx->phys[i];
+                        tgfx->dev[i].id.bustype = BUS_PARPORT;
+                        tgfx->dev[i].id.vendor = 0x0003;
+                        tgfx->dev[i].id.product = config[i+1];
+                        tgfx->dev[i].id.version = 0x0100;
+
+                        tgfx->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+                        tgfx->dev[i].absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
+
+                        for (j = 0; j < config[i+1]; j++)
+                                set_bit(tgfx_buttons[j], tgfx->dev[i].keybit);
+
+                        tgfx->dev[i].absmin[ABS_X] = -1; tgfx->dev[i].absmax[ABS_X] = 1;
+                        tgfx->dev[i].absmin[ABS_Y] = -1; tgfx->dev[i].absmax[ABS_Y] = 1;
+
+                        input_register_device(tgfx->dev + i);
+                        printk(KERN_INFO "input: %d-button Multisystem joystick on %s\n",
+                                config[i+1], tgfx->pd->port->name);
+                }
+
+        if (!tgfx->sticks) {
+                parport_unregister_device(tgfx->pd);
+                kfree(tgfx);
+                return NULL;
+        }
+
+        return tgfx;
+}
+
+static int __init tgfx_init(void)
+{
+        tgfx_base[0] = tgfx_probe(tgfx, tgfx_nargs);
+        tgfx_base[1] = tgfx_probe(tgfx_2, tgfx_nargs_2);
+        tgfx_base[2] = tgfx_probe(tgfx_3, tgfx_nargs_3);
+
+        if (tgfx_base[0] || tgfx_base[1] || tgfx_base[2])
+                return 0;
+
+        return -ENODEV;
+}
+
+static void __exit tgfx_exit(void)
+{
+        int i, j;
+
+        for (i = 0; i < 3; i++)
+                if (tgfx_base[i]) {
+                        for (j = 0; j < 7; j++)
+                                if (tgfx_base[i]->sticks & (1 << j))
+                                        input_unregister_device(tgfx_base[i]->dev + j);
+                parport_unregister_device(tgfx_base[i]->pd);
+        }
+}
+
+module_init(tgfx_init);
+module_exit(tgfx_exit);