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path: root/drivers/char/joystick/joy-turbografx.c
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Diffstat (limited to 'drivers/char/joystick/joy-turbografx.c')
-rw-r--r--drivers/char/joystick/joy-turbografx.c281
1 files changed, 281 insertions, 0 deletions
diff --git a/drivers/char/joystick/joy-turbografx.c b/drivers/char/joystick/joy-turbografx.c
new file mode 100644
index 000000000..fdf1aa433
--- /dev/null
+++ b/drivers/char/joystick/joy-turbografx.c
@@ -0,0 +1,281 @@
+/*
+ * joy-turbografx.c Version 1.2
+ *
+ * Copyright (c) 1998 Vojtech Pavlik
+ */
+
+/*
+ * This is a module for the Linux joystick driver, supporting
+ * Steffen Schwenke's <schwenke@burg-halle.de> TurboGraFX parallel port
+ * interface.
+ */
+
+/*
+ * 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, Ucitelska 1576, Prague 8, 182 00 Czech Republic
+ */
+
+#include <asm/io.h>
+#include <asm/system.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/joystick.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/delay.h>
+
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_PARM(js_tg, "2-8i");
+MODULE_PARM(js_tg_2, "2-8i");
+MODULE_PARM(js_tg_3, "2-8i");
+
+#define JS_TG_BUTTON1 0x08
+#define JS_TG_UP 0x10
+#define JS_TG_DOWN 0x20
+#define JS_TG_LEFT 0x40
+#define JS_TG_RIGHT 0x80
+
+#define JS_TG_BUTTON2 0x02
+#define JS_TG_BUTTON3 0x04
+#define JS_TG_BUTTON4 0x01
+#define JS_TG_BUTTON5 0x08
+
+static struct js_port* js_tg_port = NULL;
+
+static int js_tg[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 };
+static int js_tg_2[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 };
+static int js_tg_3[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 };
+
+struct js_tg_info {
+#ifdef USE_PARPORT
+ struct pardevice *port; /* parport device */
+#else
+ int port; /* hw port */
+#endif
+ int sticks; /* joysticks connected */
+};
+
+/*
+ * js_tg_read() reads and analyzes tg joystick data.
+ */
+
+static int js_tg_read(void *xinfo, int **axes, int **buttons)
+{
+ struct js_tg_info *info = xinfo;
+ int data1, data2, i;
+
+ for (i = 0; i < 7; i++)
+ if ((info->sticks >> i) & 1) {
+
+ JS_PAR_DATA_OUT(~(1 << i), info->port);
+ data1 = JS_PAR_STATUS(info->port) ^ ~JS_PAR_STATUS_INVERT;
+ data2 = JS_PAR_CTRL_IN(info->port) ^ JS_PAR_CTRL_INVERT;
+
+ axes[i][0] = ((data1 & JS_TG_RIGHT) ? 1 : 0) - ((data1 & JS_TG_LEFT) ? 1 : 0);
+ axes[i][1] = ((data1 & JS_TG_DOWN ) ? 1 : 0) - ((data1 & JS_TG_UP ) ? 1 : 0);
+
+ buttons[i][0] = ((data1 & JS_TG_BUTTON1) ? 0x01 : 0) | ((data2 & JS_TG_BUTTON2) ? 0x02 : 0)
+ | ((data2 & JS_TG_BUTTON3) ? 0x04 : 0) | ((data2 & JS_TG_BUTTON4) ? 0x08 : 0)
+ | ((data2 & JS_TG_BUTTON5) ? 0x10 : 0);
+
+ }
+
+ return 0;
+}
+
+/*
+ * open callback: claim parport.
+ */
+
+int js_tg_open(struct js_dev *dev)
+{
+ struct js_tg_info *info = dev->port->info;
+
+ if (!MOD_IN_USE) {
+#ifdef USE_PARPORT
+ if (parport_claim(info->port)) return -EBUSY;
+#endif
+ JS_PAR_CTRL_OUT(0x04, info->port);
+ }
+ MOD_INC_USE_COUNT;
+ return 0;
+}
+
+/*
+ * close callback: release parport
+ */
+
+int js_tg_close(struct js_dev *dev)
+{
+ struct js_tg_info *info = dev->port->info;
+
+ MOD_DEC_USE_COUNT;
+ if (!MOD_IN_USE) {
+ JS_PAR_CTRL_OUT(0x00, info->port);
+#ifdef USE_PARPORT
+ parport_release(info->port);
+#endif
+ }
+ return 0;
+}
+
+#ifdef MODULE
+void cleanup_module(void)
+{
+ struct js_tg_info *info;
+ int i;
+
+ while (js_tg_port != NULL) {
+ for (i = 0; i < js_tg_port->ndevs; i++)
+ if (js_tg_port->devs[i] != NULL)
+ js_unregister_device(js_tg_port->devs[i]);
+ info = js_tg_port->info;
+#ifdef USE_PARPORT
+ parport_unregister_device(info->port);
+#else
+ release_region(info->port, 3);
+#endif
+ js_tg_port = js_unregister_port(js_tg_port);
+ }
+}
+#endif
+
+/*
+ * js_tg_init_corr() initializes correction values of
+ * tg gamepads.
+ */
+
+static void __init js_tg_init_corr(int sticks, struct js_corr **corr)
+{
+ int i, j;
+
+ for (i = 0; i < 7; i++)
+ if ((sticks >> i) & 1)
+ for (j = 0; j < 2; j++) {
+ corr[i][j].type = JS_CORR_BROKEN;
+ corr[i][j].prec = 0;
+ corr[i][j].coef[0] = 0;
+ corr[i][j].coef[1] = 0;
+ corr[i][j].coef[2] = (1 << 29);
+ corr[i][j].coef[3] = (1 << 29);
+ }
+}
+
+/*
+ * js_tg_probe() probes for tg gamepads.
+ */
+
+static struct js_port __init *js_tg_probe(int *config, struct js_port *port)
+{
+ struct js_tg_info iniinfo;
+ struct js_tg_info *info = &iniinfo;
+ int i;
+
+ if (config[0] < 0) return port;
+
+#ifdef USE_PARPORT
+ {
+ struct parport *pp;
+
+ if (config[0] > 0x10)
+ for (pp=parport_enumerate(); pp != NULL && (pp->base!=config[0]); pp=pp->next);
+ else
+ for (pp=parport_enumerate(); pp != NULL && (config[0]>0); pp=pp->next) config[0]--;
+
+ if (pp == NULL) {
+ printk(KERN_ERR "joy-tg: no such parport\n");
+ return port;
+ }
+
+ info->port = parport_register_device(pp, "joystick (turbografx)", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
+ if (!info->port)
+ return port;
+ }
+#else
+ info->port = config[0];
+ if (check_region(info->port, 3)) return port;
+ request_region(info->port, 3, "joystick (turbografx)");
+#endif
+
+ port = js_register_port(port, info, 7, sizeof(struct js_tg_info), js_tg_read);
+ info = port->info;
+
+ info->sticks = 0;
+
+ for (i = 0; i < 7; i++)
+ if (config[i+1] > 0 && config[i+1] < 6) {
+#ifdef USE_PARPORT
+ printk(KERN_INFO "js%d: Multisystem joystick on %s\n",
+ js_register_device(port, i, 2, config[i+1], "Multisystem joystick", js_tg_open, js_tg_close),
+ info->port->port->name);
+#else
+ printk(KERN_INFO "js%d: Multisystem joystick at %#x\n",
+ js_register_device(port, i, 2, config[i+1], "Multisystem joystick", js_tg_open, js_tg_close),
+ info->port);
+#endif
+ info->sticks |= (1 << i);
+ }
+
+ if (!info->sticks) {
+#ifdef USE_PARPORT
+ parport_unregister_device(info->port);
+#else
+ release_region(info->port, 3);
+#endif
+ return port;
+ }
+
+ js_tg_init_corr(info->sticks, port->corr);
+
+ return port;
+}
+
+#ifndef MODULE
+void __init js_tg_setup(char *str, int *ints)
+{
+ int i;
+
+ if (!strcmp(str,"js_tg"))
+ for (i = 0; i <= ints[0] && i < 2; i++) js_tg[i] = ints[i+1];
+ if (!strcmp(str,"js_tg_2"))
+ for (i = 0; i <= ints[0] && i < 2; i++) js_tg_2[i] = ints[i+1];
+ if (!strcmp(str,"js_tg_3"))
+ for (i = 0; i <= ints[0] && i < 2; i++) js_tg_3[i] = ints[i+1];
+
+}
+#endif
+
+#ifdef MODULE
+int init_module(void)
+#else
+int __init js_tg_init(void)
+#endif
+{
+ js_tg_port = js_tg_probe(js_tg, js_tg_port);
+ js_tg_port = js_tg_probe(js_tg_2, js_tg_port);
+ js_tg_port = js_tg_probe(js_tg_3, js_tg_port);
+
+ if (js_tg_port) return 0;
+
+#ifdef MODULE
+ printk(KERN_WARNING "joy-tg: no joysticks specified\n");
+#endif
+ return -ENODEV;
+}
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