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-rw-r--r--drivers/char/macmouse.c312
1 files changed, 0 insertions, 312 deletions
diff --git a/drivers/char/macmouse.c b/drivers/char/macmouse.c
deleted file mode 100644
index b9236bb93..000000000
--- a/drivers/char/macmouse.c
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
- * Macintosh ADB Mouse driver for Linux
- *
- * 27 Oct 1997 Michael Schmitz
- *
- * Apple mouse protocol according to:
- *
- * Device code shamelessly stolen from:
- */
-/*
- * Atari Mouse Driver for Linux
- * by Robert de Vries (robert@and.nl) 19Jul93
- *
- * 16 Nov 1994 Andreas Schwab
- * Compatibility with busmouse
- * Support for three button mouse (shamelessly stolen from MiNT)
- * third button wired to one of the joystick directions on joystick 1
- *
- * 1996/02/11 Andreas Schwab
- * Module support
- * Allow multiple open's
- */
-
-#include <linux/module.h>
-
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/miscdevice.h>
-#include <linux/mm.h>
-#include <linux/random.h>
-#include <linux/poll.h>
-#include <linux/init.h>
-
-#include <asm/setup.h>
-#include <asm/mac_mouse.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-
-static struct mouse_status mouse;
-static int mac_mouse_x_threshold = 2, mac_mouse_y_threshold = 2;
-static int mac_mouse_buttons = 0;
-
-extern void (*mac_mouse_interrupt_hook) (char *, int);
-extern int mac_emulate_button2;
-extern int mac_emulate_button3;
-
-extern int console_loglevel;
-
-/*
- * XXX: need to figure out what ADB mouse packets mean ...
- * This is the stuff stolen from the Atari driver ...
- */
-static void mac_mouse_interrupt(char *buf, int nb)
-{
- static int buttons = 7; /* all mouse buttons _up_ !! */
-
- /*
- Handler 1 -- 100cpi original Apple mouse protocol.
- Handler 2 -- 200cpi original Apple mouse protocol.
-
- For Apple's standard one-button mouse protocol the data array will
- contain the following values:
-
- BITS COMMENTS
- data[0] = 0000 0000 ADB packet identifer.
- data[1] = ???? ???? (?)
- data[2] = ???? ??00 Bits 0-1 should be zero for a mouse device.
- data[3] = bxxx xxxx First button and x-axis motion.
- data[4] = byyy yyyy Second button and y-axis motion.
-
- NOTE: data[0] is confirmed by the parent function and need not be
- checked here.
- */
-
- /*
- Handler 4 -- Apple Extended mouse protocol.
-
- For Apple's 3-button mouse protocol the data array will contain the
- following values:
-
- BITS COMMENTS
- data[0] = 0000 0000 ADB packet identifer.
- data[1] = 0100 0000 Extended protocol register.
- Bits 6-7 are the device id, which should be 1.
- Bits 4-5 are resolution which is in "units/inch".
- The Logitech MouseMan returns these bits clear but it has
- 200/300cpi resolution.
- Bits 0-3 are unique vendor id.
- data[2] = 0011 1100 Bits 0-1 should be zero for a mouse device.
- Bits 2-3 should be 8 + 4.
- Bits 4-7 should be 3 for a mouse device.
- data[3] = bxxx xxxx Left button and x-axis motion.
- data[4] = byyy yyyy Second button and y-axis motion.
- data[5] = byyy bxxx Third button and fourth button.
- Y is additiona. high bits of y-axis motion.
- X is additional high bits of x-axis motion.
-
- NOTE: data[0] and data[2] are confirmed by the parent function and
- need not be checked here.
- */
-
- /*
- * 'buttons' here means 'button down' states!
- * Button 1 (left) : bit 2, busmouse button 3
- * Button 2 (right) : bit 0, busmouse button 1
- * Button 3 (middle): bit 1, busmouse button 2
- */
-
- /* x/y and buttons swapped */
-
- if (buf[0] == 0) { /* real packet : use buttons? */
-#ifdef DEBUG_ADBMOUSE
- if (console_loglevel >= 8)
- printk("mac_mouse: real data; ");
-#endif
- /* button 1 (left, bit 2) : always significant ! */
- buttons = (buttons&3) | (buf[3] & 0x80 ? 4 : 0); /* 1+2 unchanged */
- /* button 2 (right, bit 0) present ? */
- if ( !mac_emulate_button2 )
- buttons = (buttons&6) | (buf[4] & 0x80 ? 1 : 0); /* 2+3 unchanged */
- /* button 2 (middle) present? */
- /* data valid only if extended mouse format ! (buf[3] = 0 else)*/
- if ( !mac_emulate_button3 && buf[1]&0x40 )
- buttons = (buttons&5) | (buf[5] & 0x80 ? 2 : 0); /* 1+3 unchanged */
- } else { /* fake packet : use 2+3 */
-#ifdef DEBUG_ADBMOUSE
- if (console_loglevel >= 8)
- printk("mac_mouse: fake data; ");
-#endif
- /* we only see state changes here, but the fake driver takes care
- * to preserve state... button 1 state must stay unchanged! */
- buttons = (buttons&4) | ((buf[4] & 0x80 ? 1 : 0) | (buf[5] & 0x80 ? 2 : 0));
- }
-
- add_mouse_randomness(((~buttons & 7) << 16) + ((buf[2]&0x7f) << 8) + (buf[1]&0x7f));
- mouse.buttons = buttons & 7;
- mouse.dx += ((buf[4]&0x7f) < 64 ? (buf[4]&0x7f) : (buf[4]&0x7f)-128 );
- mouse.dy -= ((buf[3]&0x7f) < 64 ? (buf[3]&0x7f) : (buf[3]&0x7f)-128 );
-
-#ifdef DEBUG_ADBMOUSE
- if (console_loglevel >= 8)
- printk(" %X %X %X buttons %x dx %d dy %d \n",
- buf[3], buf[4], buf[5], mouse.buttons, mouse.dx, mouse.dy);
-#endif
-
- mouse.ready = 1;
- wake_up_interruptible(&mouse.wait);
- if (mouse.fasyncptr)
- kill_fasync(mouse.fasyncptr, SIGIO);
-
-}
-
-static int fasync_mouse(int fd, struct file *filp, int on)
-{
- int retval;
-
- retval = fasync_helper(fd, filp, on, &mouse.fasyncptr);
- if (retval < 0)
- return retval;
- return 0;
-}
-
-static int release_mouse(struct inode *inode, struct file *file)
-{
- fasync_mouse(-1, file, 0);
- if (--mouse.active)
- return 0;
-
- mac_mouse_interrupt_hook = NULL;
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-static int open_mouse(struct inode *inode, struct file *file)
-{
- if (mouse.active++)
- return 0;
-
- mouse.ready = 0;
-
- mouse.dx = mouse.dy = 0;
- mac_mouse_buttons = 0;
- MOD_INC_USE_COUNT;
- mac_mouse_interrupt_hook = mac_mouse_interrupt;
- return 0;
-}
-
-static ssize_t write_mouse(struct file *file, const char *buffer,
- size_t count, loff_t *ppos)
-{
- return -EINVAL;
-}
-
-static ssize_t read_mouse(struct file *file, char *buffer, size_t count,
- loff_t *ppos)
-{
- int dx, dy, buttons;
-
- if (count < 3)
- return -EINVAL;
- if (!mouse.ready)
- return -EAGAIN;
- dx = mouse.dx;
- dy = mouse.dy;
- buttons = mouse.buttons;
- if (dx > 127)
- dx = 127;
- else if (dx < -128)
- dx = -128;
- if (dy > 127)
- dy = 127;
- else if (dy < -128)
- dy = -128;
- mouse.dx -= dx;
- mouse.dy -= dy;
- if (mouse.dx == 0 && mouse.dy == 0)
- mouse.ready = 0;
- if (put_user(buttons | 0x80, buffer++) ||
- put_user((char) dx, buffer++) ||
- put_user((char) dy, buffer++))
- return -EFAULT;
- if (count > 3)
- if (clear_user(buffer, count - 3))
- return -EFAULT;
- return count;
-}
-
-static unsigned int mouse_poll(struct file *file, poll_table *wait)
-{
- poll_wait(file, &mouse.wait, wait);
- if (mouse.ready)
- return POLLIN | POLLRDNORM;
- return 0;
-}
-
-struct file_operations mac_mouse_fops = {
- NULL, /* mouse_seek */
- read_mouse,
- write_mouse,
- NULL, /* mouse_readdir */
- mouse_poll,
- NULL, /* mouse_ioctl */
- NULL, /* mouse_mmap */
- open_mouse,
- NULL, /* flush */
- release_mouse,
- NULL,
- fasync_mouse,
-};
-
-#define ADB_MOUSE_MINOR 10
-
-static struct miscdevice mac_mouse = {
- ADB_MOUSE_MINOR, "adbmouse", &mac_mouse_fops
-};
-
-__initfunc(int mac_mouse_init(void))
-{
- mouse.active = 0;
- mouse.ready = 0;
- mouse.wait = NULL;
-
- if (!MACH_IS_MAC)
- return -ENODEV;
-
- printk(KERN_INFO "Macintosh ADB mouse installed.\n");
- misc_register(&mac_mouse);
- return 0;
-}
-
-
-#define MIN_THRESHOLD 1
-#define MAX_THRESHOLD 20 /* more seems not reasonable... */
-
-__initfunc(void mac_mouse_setup(char *str, int *ints))
-{
- if (ints[0] < 1) {
- printk( "mac_mouse_setup: no arguments!\n" );
- return;
- }
- else if (ints[0] > 2) {
- printk( "mac_mouse_setup: too many arguments\n" );
- }
-
- if (ints[1] < MIN_THRESHOLD || ints[1] > MAX_THRESHOLD)
- printk( "mac_mouse_setup: bad threshold value (ignored)\n" );
- else {
- mac_mouse_x_threshold = ints[1];
- mac_mouse_y_threshold = ints[1];
- if (ints[0] > 1) {
- if (ints[2] < MIN_THRESHOLD || ints[2] > MAX_THRESHOLD)
- printk("mac_mouse_setup: bad threshold value (ignored)\n" );
- else
- mac_mouse_y_threshold = ints[2];
- }
- }
-
-}
-
-#ifdef MODULE
-#include <asm/setup.h>
-
-int init_module(void)
-{
- return mac_mouse_init();
-}
-
-void cleanup_module(void)
-{
- misc_deregister(&mac_mouse);
-}
-#endif
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