patch-2.4.22 linux-2.4.22/drivers/sgi/char/streamable.c

• Lines: 321
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.21/drivers/sgi/char/streamable.c
• Orig date: 2002-11-28 15:53:14.000000000 -0800

diff -urN linux-2.4.21/drivers/sgi/char/streamable.c linux-2.4.22/drivers/sgi/char/streamable.c
@@ -1,320 +0,0 @@
-/* $Id: streamable.c,v 1.10 2000/02/05 06:47:30 ralf Exp $
- *
- * streamable.c: streamable devices. /dev/gfx
- * (C) 1997 Miguel de Icaza (miguel@nuclecu.unam.mx)
- *
- * Major 10 is the streams clone device.  The IRIX Xsgi server just
- * opens /dev/gfx and closes it inmediately.
- *
- */
-
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-#include <linux/sched.h>
-#include <linux/kbd_kern.h>
-#include <linux/vt_kern.h>
-#include <linux/smp_lock.h>
-#include <asm/uaccess.h>
-#include <asm/shmiq.h>
-#include <asm/keyboard.h>
-#include "graphics.h"
-
-
-extern struct kbd_struct kbd_table [MAX_NR_CONSOLES];
-
-/* console number where forwarding is enabled */
-int forward_chars;
-
-/* To which shmiq this keyboard is assigned */
-int kbd_assigned_device;
-
-/* previous kbd_mode for the forward_chars terminal */
-int kbd_prev_mode;
-
-/* Fetchs the strioctl information from user space for I_STR ioctls */
-int
-get_sioc (struct strioctl *sioc, unsigned long arg)
-{
-	int v;
-
-	v = verify_area (VERIFY_WRITE, (void *) arg, sizeof (struct strioctl));
-	if (v)
-		return v;
-	if (copy_from_user (sioc, (void *) arg, sizeof (struct strioctl)))
-		return -EFAULT;
-
-	v = verify_area (VERIFY_WRITE, (void *) sioc->ic_dp, sioc->ic_len);
-	if (v)
-		return v;
-	return 0;
-}
-
-/* /dev/gfx device */
-static int
-sgi_gfx_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
-{
-	printk ("GFX: ioctl 0x%x %ld called\n", cmd, arg);
-	return 0;
-	return -EINVAL;
-}
-
-struct file_operations sgi_gfx_fops = {
-	ioctl:		sgi_gfx_ioctl,
-};
-
-static struct miscdevice dev_gfx = {
-	SGI_GFX_MINOR, "sgi-gfx", &sgi_gfx_fops
-};
-
-/* /dev/input/keyboard streams device */
-static idevDesc sgi_kbd_desc = {
-        "keyboard",             /* devName */
-        "KEYBOARD",             /* devType */
-        240,                    /* nButtons */
-        0,                      /* nValuators */
-        0,                      /* nLEDs */
-        0,                      /* nStrDpys */
-        0,                      /* nIntDpys */
-        0,                      /* nBells */
-	IDEV_HAS_KEYMAP | IDEV_HAS_PCKBD
-};
-
-static int
-sgi_kbd_sioc (idevInfo *dinfo, int cmd, int size, char *data, int *found)
-{
-	*found = 1;
-
-	switch (cmd){
-
-	case IDEVINITDEVICE:
-		return 0;
-
-	case IDEVGETDEVICEDESC:
-		if (size >= sizeof (idevDesc)){
-			if (copy_to_user (data, &sgi_kbd_desc, sizeof (sgi_kbd_desc)))
-				return -EFAULT;
-			return 0;
-		}
-		return -EINVAL;
-
-	case IDEVGETKEYMAPDESC:
-		if (size >= sizeof (idevKeymapDesc)){
-			if (copy_to_user (data, "US", 3))
-				return -EFAULT;
-			return 0;
-		}
-		return -EINVAL;
-	}
-	*found = 0;
-	return -EINVAL;
-}
-
-static int
-sgi_keyb_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
-{
-	struct strioctl sioc;
-	int    f, v;
-
-	/* IRIX calls I_PUSH on the opened device, go figure */
-	if (cmd == I_PUSH)
-		return 0;
-
-	if (cmd == I_STR){
-		v = get_sioc (&sioc, arg);
-		if (v)
-			return v;
-
-		/* Why like this?  Because this is a sample piece of code
-		 * that can be copied into other drivers and shows how to
-		 * call a stock IRIX xxx_wioctl routine
-		 *
-		 * The NULL is supposed to be a idevInfo, right now we
-		 * do not support this in our kernel.
-		 */
-		return sgi_kbd_sioc (NULL, sioc.ic_cmd, sioc.ic_len, sioc.ic_dp, &f);
-	}
-
-	if (cmd == SHMIQ_ON){
-		kbd_assigned_device = arg;
-		forward_chars = fg_console + 1;
-		kbd_prev_mode = kbd_table [fg_console].kbdmode;
-
-	        kbd_table [fg_console].kbdmode = VC_RAW;
-	} else if (cmd == SHMIQ_OFF && forward_chars){
-		kbd_table [forward_chars-1].kbdmode = kbd_prev_mode;
-		forward_chars = 0;
-	} else
-		return -EINVAL;
-	return 0;
-}
-
-void
-kbd_forward_char (int ch)
-{
-	static struct shmqevent ev;
-
-	ev.data.flags  = (ch & 0200) ? 0 : 1;
-	ev.data.which  = ch;
-	ev.data.device = kbd_assigned_device + 0x11;
-	shmiq_push_event (&ev);
-}
-
-static int
-sgi_keyb_open (struct inode *inode, struct file *file)
-{
-	/* Nothing, but required by the misc driver */
-	return 0;
-}
-
-struct file_operations sgi_keyb_fops = {
-	ioctl:		sgi_keyb_ioctl,
-	open:		sgi_keyb_open,
-};
-
-static struct miscdevice dev_input_keyboard = {
-	SGI_STREAMS_KEYBOARD, "streams-keyboard", &sgi_keyb_fops
-};
-
-/* /dev/input/mouse streams device */
-#define MOUSE_VALUATORS 2
-static idevDesc sgi_mouse_desc = {
-        "mouse",                /* devName */
-        "MOUSE",                /* devType */
-        3,                      /* nButtons */
-        MOUSE_VALUATORS,	/* nValuators */
-        0,                      /* nLEDs */
-        0,                      /* nStrDpys */
-        0,                      /* nIntDpys */
-        0,                      /* nBells */
-	0			/* flags */
-};
-
-static idevValuatorDesc mouse_default_valuator = {
-	200,			/* hwMinRes */
-        200,			/* hwMaxRes */
-        0,			/* hwMinVal */
-        65000,			/* hwMaxVal */
-        IDEV_EITHER,		/* possibleModes */
-        IDEV_ABSOLUTE,		/* default mode */
-        200,			/* resolution */
-        0,			/* minVal */
-        65000			/* maxVal */
-};
-
-static int mouse_opened;
-static idevValuatorDesc mouse_valuators [MOUSE_VALUATORS];
-
-int
-sgi_mouse_open (struct inode *inode, struct file *file)
-{
-	int i;
-
-	if (mouse_opened)
-		return -EBUSY;
-
-	mouse_opened = 1;
-	for (i = 0; i < MOUSE_VALUATORS; i++)
-		mouse_valuators [i] = mouse_default_valuator;
-	return 0;
-}
-
-static int
-sgi_mouse_close (struct inode *inode, struct file *filp)
-{
-	lock_kernel();
-	mouse_opened = 0;
-	unlock_kernel();
-	return 0;
-}
-
-static int
-sgi_mouse_sioc (idevInfo *dinfo, int cmd, int size, char *data, int *found)
-{
-	*found = 1;
-
-	switch (cmd){
-	case IDEVINITDEVICE:
-		return 0;
-
-	case IDEVGETDEVICEDESC:
-		if (size >= sizeof (idevDesc)){
-			if (copy_to_user (data, &sgi_mouse_desc, sizeof (sgi_mouse_desc)))
-				return -EFAULT;
-			return 0;
-		}
-		return -EINVAL;
-
-	case IDEVGETVALUATORDESC: {
-		idevGetSetValDesc request, *ureq = (idevGetSetValDesc *) data;
-
-		if (size < sizeof (idevGetSetValDesc))
-			return -EINVAL;
-
-		if (copy_from_user (&request, data, sizeof (request)))
-			return -EFAULT;
-		if (request.valNum >= MOUSE_VALUATORS)
-			return -EINVAL;
-		if (copy_to_user ((void *)&ureq->desc,
-				  (void *)&mouse_valuators [request.valNum],
-				  sizeof (idevValuatorDesc)))
-			return -EFAULT;
-		return 0;
-	}
-	}
-	*found = 0;
-	return -EINVAL;
-}
-
-static int
-sgi_mouse_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
-{
-	struct strioctl sioc;
-	int    f, v;
-
-	/* IRIX calls I_PUSH on the opened device, go figure */
-	switch (cmd){
-	case I_PUSH:
-		return 0;
-
-	case I_STR:
-		v = get_sioc (&sioc, arg);
-		if (v)
-			return v;
-
-		/* Why like this?  Because this is a sample piece of code
-		 * that can be copied into other drivers and shows how to
-		 * call a stock IRIX xxx_wioctl routine
-		 *
-		 * The NULL is supposed to be a idevInfo, right now we
-		 * do not support this in our kernel.
-		 */
-		return sgi_mouse_sioc (NULL, sioc.ic_cmd, sioc.ic_len, sioc.ic_dp, &f);
-
-	case SHMIQ_ON:
-	case SHMIQ_OFF:
-		return 0;
-	}
-	return 0;
-}
-
-struct file_operations sgi_mouse_fops = {
-	ioctl:		sgi_mouse_ioctl,
-	open:		sgi_mouse_open,
-	release:	sgi_mouse_close,
-};
-
-/* /dev/input/mouse */
-static struct miscdevice dev_input_mouse = {
-	SGI_STREAMS_KEYBOARD, "streams-mouse", &sgi_mouse_fops
-};
-
-void
-streamable_init (void)
-{
-	printk ("streamable misc devices registered (keyb:%d, gfx:%d)\n",
-		SGI_STREAMS_KEYBOARD, SGI_GFX_MINOR);
-
-	misc_register (&dev_gfx);
-	misc_register (&dev_input_keyboard);
-	misc_register (&dev_input_mouse);
-}