summaryrefslogtreecommitdiffstats
path: root/drivers/char/joystick/joy-spaceball.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/joystick/joy-spaceball.c')
-rw-r--r--drivers/char/joystick/joy-spaceball.c343
1 files changed, 0 insertions, 343 deletions
diff --git a/drivers/char/joystick/joy-spaceball.c b/drivers/char/joystick/joy-spaceball.c
deleted file mode 100644
index 3ace13642..000000000
--- a/drivers/char/joystick/joy-spaceball.c
+++ /dev/null
@@ -1,343 +0,0 @@
-/*
- * joy-spaceball.c Version 0.1
- *
- * Copyright (c) 1998 David Thompson
- * Copyright (c) 1999 Vojtech Pavlik
- * Copyright (c) 1999 Joseph Krahn
- *
- * Sponsored by SuSE
- */
-
-/*
- * This is a module for the Linux joystick driver, supporting
- * the SpaceTec SpaceBall 4000 FLX.
- */
-
-/*
- * 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@suse.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/joystick.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/tty.h>
-#include <linux/init.h>
-
-/*
- * Constants.
- */
-
-#define N_JOYSTICK_SBALL 12
-#define JS_SBALL_MAX_LENGTH 128
-
-/*
- * List of SpaceBalls.
- */
-
-static struct js_port* js_sball_port = NULL;
-
-/*
- * Per-Ball data.
- */
-
-struct js_sball_info {
- struct tty_struct* tty;
- struct js_port* port;
- int idx;
- unsigned char data[JS_SBALL_MAX_LENGTH];
- int js;
- char used;
-};
-
-/*
- * js_sball_process_packet() decodes packets the driver receives from the
- * SpaceBall.
- */
-
-static void js_sball_process_packet(struct js_sball_info* info)
-{
- int i,b;
- int **axes = info->port->axes;
- int **buttons = info->port->buttons;
- unsigned char *data = info->data;
-
- if (info->idx < 2) return;
-
- switch (info->data[0]) {
-
- case '@': /* Reset packet */
- info->data[info->idx - 1] = 0;
- for (i = 1; i < info->idx && info->data[i] == ' '; i++);
-
- printk(KERN_INFO "js%d: SpaceBall 4000FLX [%s] on %s%d\n",
- info->js, info->data + i, info->tty->driver.name,
- MINOR(info->tty->device) - info->tty->driver.minor_start);
-
- memset(axes[0], 0, sizeof(int) * 6); /* All axes, buttons should be zero */
- buttons[0][0] = 0;
- break;
-
- case 'D': /* Ball data */
- if (info->idx != 16) return;
- if (!info->port->devs[0]) return;
- axes[0][0] = ((data[3] << 8) | data[4] );
- axes[0][1] = ((data[5] << 8) | data[6] );
- axes[0][2] = ((data[7] << 8) | data[8] );
- axes[0][3] = ((data[9] << 8) | data[10]);
- axes[0][4] = ((data[11]<< 8) | data[12]);
- axes[0][5] = ((data[13]<< 8) | data[14]);
- for(i = 0; i < 6; i ++) if (axes[0][i] & 0x8000) axes[0][i] -= 0x10000;
- break;
-
- case 'K': /* Button data, part1 */
- /* We can ignore this packet for the SB 4000FLX. */
- break;
-
- case '.': /* Button data, part2 */
- if (info->idx != 4) return;
- if (!info->port->devs[0]) return;
- b = (data[1] & 0xbf) << 8 | (data[2] & 0xbf);
- buttons[0][0] = ((b & 0x1f80) >> 1 | (b & 0x3f));
- break;
-
- case '?': /* Error packet */
- info->data[info->idx - 1] = 0;
- printk(KERN_ERR "joy-spaceball: Device error. [%s]\n",info->data+1);
- break;
-
- case 'A': /* reply to A command (ID# report) */
- case 'B': /* reply to B command (beep) */
- case 'H': /* reply to H command (firmware report) */
- case 'S': /* reply to S command (single beep) */
- case 'Y': /* reply to Y command (scale flag) */
- case '"': /* reply to "n command (report info, part n) */
- break;
-
- case 'P': /* Pulse (update) speed */
- if (info->idx != 3) return; /* data[2],data[3] = hex digits for speed 00-FF */
- break;
-
- default:
- printk("joy-spaceball: Unknown packet %d length %d:", data[0], info->idx);
- for (i = 0; i < info->idx; i++) printk(" %02x", data[i]);
- printk("\n");
- return;
- }
-}
-
-/*
- * js_sball_open() is a callback from the joystick device open routine.
- */
-
-static int js_sball_open(struct js_dev *jd)
-{
- struct js_sball_info *info = jd->port->info;
- info->used++;
- return 0;
-}
-
-/*
- * js_sball_close() is a callback from the joystick device release routine.
- */
-
-static int js_sball_close(struct js_dev *jd)
-{
- struct js_sball_info *info = jd->port->info;
- if (!--info->used) {
- js_unregister_device(jd->port->devs[0]);
- js_sball_port = js_unregister_port(jd->port);
- }
- return 0;
-}
-
-/*
- * js_sball_init_corr() initializes the correction values for the SpaceBall.
- */
-
-static void __init js_sball_init_corr(struct js_corr **corr)
-{
- int j;
-
- for (j = 0; j < 3; j++) {
- corr[0][j].type = JS_CORR_BROKEN;
- corr[0][j].prec = 0;
- corr[0][j].coef[0] = 0;
- corr[0][j].coef[1] = 0;
- corr[0][j].coef[2] = 50000;
- corr[0][j].coef[3] = 50000;
- }
- for (j = 3; j < 6; j++) {
- corr[0][j].type = JS_CORR_BROKEN;
- corr[0][j].prec = 0;
- corr[0][j].coef[0] = 0;
- corr[0][j].coef[1] = 0;
- corr[0][j].coef[2] = 300000;
- corr[0][j].coef[3] = 300000;
- }
-}
-
-/*
- * js_sball_ldisc_open() is the routine that is called upon setting our line
- * discipline on a tty.
- */
-
-static int js_sball_ldisc_open(struct tty_struct *tty)
-{
- struct js_sball_info iniinfo;
- struct js_sball_info *info = &iniinfo;
-
- MOD_INC_USE_COUNT;
-
- info->tty = tty;
- info->idx = 0;
- info->used = 1;
-
- js_sball_port = js_register_port(js_sball_port, info, 1, sizeof(struct js_sball_info), NULL);
-
- info = js_sball_port->info;
- info->port = js_sball_port;
- tty->disc_data = info;
-
- info->js = js_register_device(js_sball_port, 0, 6, 12, "SpaceBall 4000 FLX", THIS_MODULE, js_sball_open, js_sball_close);
-
- js_sball_init_corr(js_sball_port->corr);
-
- return 0;
-}
-
-/*
- * js_sball_ldisc_close() is the opposite of js_sball_ldisc_open()
- */
-
-static void js_sball_ldisc_close(struct tty_struct *tty)
-{
- struct js_sball_info* info = (struct js_sball_info*) tty->disc_data;
- if (!--info->used) {
- js_unregister_device(info->port->devs[0]);
- js_sball_port = js_unregister_port(info->port);
- }
- MOD_DEC_USE_COUNT;
-}
-
-/*
- * js_sball_ldisc_receive() is called by the low level driver when characters
- * are ready for us. We then buffer them for further processing, or call the
- * packet processing routine.
- */
-
-static void js_sball_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count)
-{
- struct js_sball_info* info = (struct js_sball_info*) tty->disc_data;
- int i;
- int esc_flag = 0;
-
-/*
- * Spaceball 4000 FLX packets all start with a one letter packet-type decriptor,
- * and end in 0x0d. It uses '^' as an escape for 0x0d characters which can
- * occur in the axis values. ^M, ^Q and ^S all mean 0x0d, depending (I think)
- * on whether the axis value is increasing, decreasing, or same as before.
- * (I don't see why this is useful).
- *
- * There may be a nicer whay to handle the escapes, but I wanted to be sure to
- * allow for an escape at the end of the buffer.
- */
- for (i = 0; i < count; i++) {
- if (esc_flag) { /* If the last char was an escape, overwrite it with the escaped value */
-
- switch (cp[i]){
- case 'M':
- case 'Q':
- case 'S':
- info->data[info->idx]=0x0d;
- break;
- case '^': /* escaped escape; leave as is */
- break;
- default:
- printk("joy-spaceball: Unknown escape character: %02x\n", cp[i]);
- }
-
- esc_flag = 0;
-
- } else {
-
- if (info->idx < JS_SBALL_MAX_LENGTH)
- info->data[info->idx++] = cp[i];
-
- if (cp[i] == 0x0D) {
- if (info->idx)
- js_sball_process_packet(info);
- info->idx = 0;
- } else
- if (cp[i] == '^') esc_flag = 1;
-
- }
- }
-}
-
-/*
- * js_sball_ldisc_room() reports how much room we do have for receiving data.
- * Although we in fact have infinite room, we need to specify some value
- * here, so why not the size of our packet buffer. It's big anyway.
- */
-
-static int js_sball_ldisc_room(struct tty_struct *tty)
-{
- return JS_SBALL_MAX_LENGTH;
-}
-
-/*
- * The line discipline structure.
- */
-
-static struct tty_ldisc js_sball_ldisc = {
- magic: TTY_LDISC_MAGIC,
- name: "spaceball",
- open: js_sball_ldisc_open,
- close: js_sball_ldisc_close,
- receive_buf: js_sball_ldisc_receive,
- receive_room: js_sball_ldisc_room,
-};
-
-/*
- * The functions for inserting/removing us as a module.
- */
-
-#ifdef MODULE
-int init_module(void)
-#else
-int __init js_sball_init(void)
-#endif
-{
- if (tty_register_ldisc(N_JOYSTICK_SBALL, &js_sball_ldisc)) {
- printk(KERN_ERR "joy-spaceball: Error registering line discipline.\n");
- return -ENODEV;
- }
-
- return 0;
-}
-
-#ifdef MODULE
-void cleanup_module(void)
-{
- tty_register_ldisc(N_JOYSTICK_SBALL, NULL);
-}
-#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 06:36:52 +0000