sparc: Kill videopix SBUS driver.

This has been marked BROKEN for a long time and it's more likely
to get rewritten from scratch than to be fixed up and made usable.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 736 deletions

diff --git a/drivers/sbus/char/vfc_dev.c b/drivers/sbus/char/vfc_dev.c
deleted file mode 100644
index 25181bb7d627..000000000000
--- a/drivers/sbus/char/vfc_dev.c
+++ /dev/null
@@ -1,736 +0,0 @@
-/*
- * drivers/sbus/char/vfc_dev.c
- *
- * Driver for the Videopix Frame Grabber.
- * 
- * In order to use the VFC you need to program the video controller
- * chip. This chip is the Phillips SAA9051.  You need to call their
- * documentation ordering line to get the docs.
- *
- * There is very little documentation on the VFC itself.  There is
- * some useful info that can be found in the manuals that come with
- * the card.  I will hopefully write some better docs at a later date.
- *
- * Copyright (C) 1996 Manish Vachharajani (mvachhar@noc.rutgers.edu)
- * */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/mutex.h>
-#include <linux/mm.h>
-#include <linux/smp_lock.h>
-
-#include <asm/openprom.h>
-#include <asm/oplib.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/sbus.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-
-#define VFC_MAJOR (60)
-
-#if 0
-#define VFC_IOCTL_DEBUG
-#endif
-
-#include "vfc.h"
-#include <asm/vfc_ioctls.h>
-
-static const struct file_operations vfc_fops;
-static struct vfc_dev **vfc_dev_lst;
-static char vfcstr[]="vfc";
-static unsigned char saa9051_init_array[VFC_SAA9051_NR] = {
-	0x00, 0x64, 0x72, 0x52,
-	0x36, 0x18, 0xff, 0x20,
-	0xfc, 0x77, 0xe3, 0x50,
-	0x3e
-};
-
-static void vfc_lock_device(struct vfc_dev *dev)
-{
-	mutex_lock(&dev->device_lock_mtx);
-}
-
-static void vfc_unlock_device(struct vfc_dev *dev)
-{
-	mutex_unlock(&dev->device_lock_mtx);
-}
-
-
-static void vfc_captstat_reset(struct vfc_dev *dev)
-{
-	dev->control_reg |= VFC_CONTROL_CAPTRESET;
-	sbus_writel(dev->control_reg, &dev->regs->control);
-	dev->control_reg &= ~VFC_CONTROL_CAPTRESET;
-	sbus_writel(dev->control_reg, &dev->regs->control);
-	dev->control_reg |= VFC_CONTROL_CAPTRESET;
-	sbus_writel(dev->control_reg, &dev->regs->control);
-}
-
-static void vfc_memptr_reset(struct vfc_dev *dev)
-{
-	dev->control_reg |= VFC_CONTROL_MEMPTR;
-	sbus_writel(dev->control_reg, &dev->regs->control);
-	dev->control_reg &= ~VFC_CONTROL_MEMPTR;
-	sbus_writel(dev->control_reg, &dev->regs->control);
-	dev->control_reg |= VFC_CONTROL_MEMPTR; 
-	sbus_writel(dev->control_reg, &dev->regs->control);
-}
-
-static int vfc_csr_init(struct vfc_dev *dev)
-{
-	dev->control_reg = 0x80000000;
-	sbus_writel(dev->control_reg, &dev->regs->control);
-	udelay(200); 
-	dev->control_reg &= ~0x80000000;
-	sbus_writel(dev->control_reg, &dev->regs->control);
-	udelay(100); 
-	sbus_writel(0x0f000000, &dev->regs->i2c_magic2);
-
-	vfc_memptr_reset(dev);
-
-	dev->control_reg &= ~VFC_CONTROL_DIAGMODE;
-	dev->control_reg &= ~VFC_CONTROL_CAPTURE;
-	dev->control_reg |= 0x40000000;
-	sbus_writel(dev->control_reg, &dev->regs->control);
-
-	vfc_captstat_reset(dev);
-
-	return 0;
-}
-
-static int vfc_saa9051_init(struct vfc_dev *dev)
-{
-	int i;
-
-	for (i = 0; i < VFC_SAA9051_NR; i++)
-		dev->saa9051_state_array[i] = saa9051_init_array[i];
-
-	vfc_i2c_sendbuf(dev,VFC_SAA9051_ADDR,
-			dev->saa9051_state_array, VFC_SAA9051_NR);
-	return 0;
-}
-
-static int init_vfc_hw(struct vfc_dev *dev)
-{
-	vfc_lock_device(dev);
-	vfc_csr_init(dev);
-
-	vfc_pcf8584_init(dev);
-	vfc_init_i2c_bus(dev); /* hopefully this doesn't undo the magic
-				  sun code above*/
-	vfc_saa9051_init(dev);
-	vfc_unlock_device(dev);
-	return 0; 
-}
-
-static int init_vfc_devstruct(struct vfc_dev *dev, int instance)
-{
-	dev->instance=instance;
-	mutex_init(&dev->device_lock_mtx);
-	dev->control_reg=0;
-	dev->busy=0;
-	return 0;
-}
-
-static int init_vfc_device(struct sbus_dev *sdev,struct vfc_dev *dev,
-			   int instance)
-{
-	if(dev == NULL) {
-		printk(KERN_ERR "VFC: Bogus pointer passed\n");
-		return -ENOMEM;
-	}
-	printk("Initializing vfc%d\n",instance);
-	dev->regs = NULL;
-	dev->regs = (volatile struct vfc_regs __iomem *)
-		sbus_ioremap(&sdev->resource[0], 0,
-			     sizeof(struct vfc_regs), vfcstr);
-	dev->which_io = sdev->reg_addrs[0].which_io;
-	dev->phys_regs = (struct vfc_regs *) sdev->reg_addrs[0].phys_addr;
-	if (dev->regs == NULL)
-		return -EIO;
-
-	printk("vfc%d: registers mapped at phys_addr: 0x%lx\n    virt_addr: 0x%lx\n",
-	       instance,(unsigned long)sdev->reg_addrs[0].phys_addr,(unsigned long)dev->regs);
-
-	if (init_vfc_devstruct(dev, instance))
-		return -EINVAL;
-	if (init_vfc_hw(dev))
-		return -EIO;
-	return 0;
-}
-
-
-static struct vfc_dev *vfc_get_dev_ptr(int instance)
-{
-	return vfc_dev_lst[instance];
-}
-
-static DEFINE_SPINLOCK(vfc_dev_lock);
-
-static int vfc_open(struct inode *inode, struct file *file) 
-{
-	struct vfc_dev *dev;
-
-	lock_kernel();
-	spin_lock(&vfc_dev_lock);
-	dev = vfc_get_dev_ptr(iminor(inode));
-	if (dev == NULL) {
-		spin_unlock(&vfc_dev_lock);
-		unlock_kernel();
-		return -ENODEV;
-	}
-	if (dev->busy) {
-		spin_unlock(&vfc_dev_lock);
-		unlock_kernel();
-		return -EBUSY;
-	}
-
-	dev->busy = 1;
-	spin_unlock(&vfc_dev_lock);
-
-	vfc_lock_device(dev);
-	
-	vfc_csr_init(dev);
-	vfc_pcf8584_init(dev);
-	vfc_init_i2c_bus(dev);
-	vfc_saa9051_init(dev);
-	vfc_memptr_reset(dev);
-	vfc_captstat_reset(dev);
-	
-	vfc_unlock_device(dev);
-	unlock_kernel();
-	return 0;
-}
-
-static int vfc_release(struct inode *inode,struct file *file) 
-{
-	struct vfc_dev *dev;
-
-	spin_lock(&vfc_dev_lock);
-	dev = vfc_get_dev_ptr(iminor(inode));
-	if (!dev || !dev->busy) {
-		spin_unlock(&vfc_dev_lock);
-		return -EINVAL;
-	}
-	dev->busy = 0;
-	spin_unlock(&vfc_dev_lock);
-	return 0;
-}
-
-static int vfc_debug(struct vfc_dev *dev, int cmd, void __user *argp)
-{
-	struct vfc_debug_inout inout;
-	unsigned char *buffer;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return -EPERM;
-
-	switch(cmd) {
-	case VFC_I2C_SEND:
-		if(copy_from_user(&inout, argp, sizeof(inout)))
-			return -EFAULT;
-
-		buffer = kmalloc(inout.len, GFP_KERNEL);
-		if (buffer == NULL)
-			return -ENOMEM;
-
-		if(copy_from_user(buffer, inout.buffer, inout.len)) {
-			kfree(buffer);
-			return -EFAULT;
-		}
-		
-
-		vfc_lock_device(dev);
-		inout.ret=
-			vfc_i2c_sendbuf(dev,inout.addr & 0xff,
-					buffer,inout.len);
-
-		if (copy_to_user(argp,&inout,sizeof(inout))) {
-			vfc_unlock_device(dev);
-			kfree(buffer);
-			return -EFAULT;
-		}
-		vfc_unlock_device(dev);
-
-		break;
-	case VFC_I2C_RECV:
-		if (copy_from_user(&inout, argp, sizeof(inout)))
-			return -EFAULT;
-
-		buffer = kzalloc(inout.len, GFP_KERNEL);
-		if (buffer == NULL)
-			return -ENOMEM;
-
-		vfc_lock_device(dev);
-		inout.ret=
-			vfc_i2c_recvbuf(dev,inout.addr & 0xff
-					,buffer,inout.len);
-		vfc_unlock_device(dev);
-		
-		if (copy_to_user(inout.buffer, buffer, inout.len)) {
-			kfree(buffer);
-			return -EFAULT;
-		}
-		if (copy_to_user(argp,&inout,sizeof(inout))) {
-			kfree(buffer);
-			return -EFAULT;
-		}
-		kfree(buffer);
-		break;
-	default:
-		return -EINVAL;
-	};
-
-	return 0;
-}
-
-static int vfc_capture_start(struct vfc_dev *dev)
-{
-	vfc_captstat_reset(dev);
-	dev->control_reg = sbus_readl(&dev->regs->control);
-	if((dev->control_reg & VFC_STATUS_CAPTURE)) {
-		printk(KERN_ERR "vfc%d: vfc capture status not reset\n",
-		       dev->instance);
-		return -EIO;
-	}
-
-	vfc_lock_device(dev);
-	dev->control_reg &= ~VFC_CONTROL_CAPTURE;
-	sbus_writel(dev->control_reg, &dev->regs->control);
-	dev->control_reg |= VFC_CONTROL_CAPTURE;
-	sbus_writel(dev->control_reg, &dev->regs->control);
-	dev->control_reg &= ~VFC_CONTROL_CAPTURE;
-	sbus_writel(dev->control_reg, &dev->regs->control);
-	vfc_unlock_device(dev);
-
-	return 0;
-}
-
-static int vfc_capture_poll(struct vfc_dev *dev)
-{
-	int timeout = 1000;
-
-	while (!timeout--) {
-		if (sbus_readl(&dev->regs->control) & VFC_STATUS_CAPTURE)
-			break;
-		vfc_i2c_delay_no_busy(dev, 100);
-	}
-	if(!timeout) {
-		printk(KERN_WARNING "vfc%d: capture timed out\n",
-		       dev->instance);
-		return -ETIMEDOUT;
-	}
-	return 0;
-}
-
-
-
-static int vfc_set_control_ioctl(struct inode *inode, struct file *file, 
-			  struct vfc_dev *dev, unsigned long arg) 
-{
-	int setcmd, ret = 0;
-
-	if (copy_from_user(&setcmd,(void __user *)arg,sizeof(unsigned int)))
-		return -EFAULT;
-
-	VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCSCTRL) arg=0x%x\n",
-				dev->instance,setcmd));
-
-	switch(setcmd) {
-	case MEMPRST:
-		vfc_lock_device(dev);
-		vfc_memptr_reset(dev);
-		vfc_unlock_device(dev);
-		ret=0;
-		break;
-	case CAPTRCMD:
-		vfc_capture_start(dev);
-		vfc_capture_poll(dev);
-		break;
-	case DIAGMODE:
-		if(capable(CAP_SYS_ADMIN)) {
-			vfc_lock_device(dev);
-			dev->control_reg |= VFC_CONTROL_DIAGMODE;
-			sbus_writel(dev->control_reg, &dev->regs->control);
-			vfc_unlock_device(dev);
-			ret = 0;
-		} else {
-			ret = -EPERM; 
-		}
-		break;
-	case NORMMODE:
-		vfc_lock_device(dev);
-		dev->control_reg &= ~VFC_CONTROL_DIAGMODE;
-		sbus_writel(dev->control_reg, &dev->regs->control);
-		vfc_unlock_device(dev);
-		ret = 0;
-		break;
-	case CAPTRSTR:
-		vfc_capture_start(dev);
-		ret = 0;
-		break;
-	case CAPTRWAIT:
-		vfc_capture_poll(dev);
-		ret = 0;
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	};
-
-	return ret;
-}
-
-
-static int vfc_port_change_ioctl(struct inode *inode, struct file *file,
-				 struct vfc_dev *dev, unsigned long arg)
-{
-	int ret = 0;
-	int cmd;
-
-	if(copy_from_user(&cmd, (void __user *)arg, sizeof(unsigned int))) {
-		VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer to "
-					"vfc_port_change_ioctl\n",
-					dev->instance));
-		return -EFAULT;
-	}
-	
-	VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCPORTCHG) arg=0x%x\n",
-				dev->instance, cmd));
-
-	switch(cmd) {
-	case 1:
-	case 2:
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_START) = 0x72; 
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_STOP) = 0x52;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HC_START) = 0x36;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HC_STOP) = 0x18;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) = VFC_SAA9051_BP2;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C3) = VFC_SAA9051_CT | VFC_SAA9051_SS3;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_SECAM_DELAY) = 0x3e;
-		break;
-	case 3:
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_START) = 0x3a;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_STOP) = 0x17;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HC_START) = 0xfa;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HC_STOP) = 0xde;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) =
-			VFC_SAA9051_BY | VFC_SAA9051_PF | VFC_SAA9051_BP2;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C3) = VFC_SAA9051_YC;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_SECAM_DELAY) = 0;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C2) &=
-			~(VFC_SAA9051_SS0 | VFC_SAA9051_SS1);
-		break;
-	default:
-		ret = -EINVAL;
-		return ret;
-		break;
-	}
-
-	switch(cmd) {
-	case 1:
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C2) |=
-			(VFC_SAA9051_SS0 | VFC_SAA9051_SS1);
-		break;
-	case 2:
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C2) &=
-			~(VFC_SAA9051_SS0 | VFC_SAA9051_SS1);
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C2) |= VFC_SAA9051_SS0; 
-		break;
-	case 3:
-		break;
-	default:
-		ret = -EINVAL;
-		return ret;
-		break;
-	}
-	VFC_SAA9051_SA(dev,VFC_SAA9051_C3) &= ~(VFC_SAA9051_SS2);
-	ret=vfc_update_saa9051(dev);
-	udelay(500);
-	VFC_SAA9051_SA(dev,VFC_SAA9051_C3) |= (VFC_SAA9051_SS2);
-	ret=vfc_update_saa9051(dev);
-	return ret;
-}
-
-static int vfc_set_video_ioctl(struct inode *inode, struct file *file,
-			       struct vfc_dev *dev, unsigned long arg)
-{
-	int ret = 0;
-	int cmd;
-
-	if(copy_from_user(&cmd, (void __user *)arg, sizeof(unsigned int))) {
-		VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer to "
-					"vfc_set_video_ioctl\n",
-					dev->instance));
-		return ret;
-	}
-	
-	VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCSVID) arg=0x%x\n",
-				dev->instance, cmd));
-	switch(cmd) {
-	case STD_NTSC:
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C1) &= ~VFC_SAA9051_ALT;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C1) |= VFC_SAA9051_YPN | 
-			VFC_SAA9051_CCFR0 | VFC_SAA9051_CCFR1 | VFC_SAA9051_FS;
-		ret = vfc_update_saa9051(dev);
-		break;
-	case STD_PAL:
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C1) &= ~(VFC_SAA9051_YPN | 
-							VFC_SAA9051_CCFR1 | 
-							VFC_SAA9051_CCFR0 |
-							VFC_SAA9051_FS);
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C1) |= VFC_SAA9051_ALT;
-		ret = vfc_update_saa9051(dev);
-		break;
-
-	case COLOR_ON:
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C1) |= VFC_SAA9051_CO;
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) &=
-			~(VFC_SAA9051_BY | VFC_SAA9051_PF);
-		ret = vfc_update_saa9051(dev);
-		break;
-	case MONO:
-		VFC_SAA9051_SA(dev,VFC_SAA9051_C1) &= ~(VFC_SAA9051_CO);
-		VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) |=
-			(VFC_SAA9051_BY | VFC_SAA9051_PF);
-		ret = vfc_update_saa9051(dev);
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	};
-
-	return ret;
-}
-
-static int vfc_get_video_ioctl(struct inode *inode, struct file *file,
-			       struct vfc_dev *dev, unsigned long arg)
-{
-	int ret = 0;
-	unsigned int status = NO_LOCK;
-	unsigned char buf[1];
-
-	if(vfc_i2c_recvbuf(dev, VFC_SAA9051_ADDR, buf, 1)) {
-		printk(KERN_ERR "vfc%d: Unable to get status\n",
-		       dev->instance);
-		return -EIO;
-	}
-
-	if(buf[0] & VFC_SAA9051_HLOCK) {
-		status = NO_LOCK;
-	} else if(buf[0] & VFC_SAA9051_FD) {
-		if(buf[0] & VFC_SAA9051_CD)
-			status = NTSC_COLOR;
-		else
-			status = NTSC_NOCOLOR;
-	} else {
-		if(buf[0] & VFC_SAA9051_CD)
-			status = PAL_COLOR;
-		else
-			status = PAL_NOCOLOR;
-	}
-	VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCGVID) returning status 0x%x; "
-				"buf[0]=%x\n", dev->instance, status, buf[0]));
-
-	if (copy_to_user((void __user *)arg,&status,sizeof(unsigned int))) {
-		VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer to "
-					"vfc_get_video_ioctl\n",
-					dev->instance));
-		return ret;
-	}
-	return ret;
-}
-
-static int vfc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
-	      unsigned long arg) 
-{
-	int ret = 0;
-	unsigned int tmp;
-	struct vfc_dev *dev;
-	void __user *argp = (void __user *)arg;
-
-	dev = vfc_get_dev_ptr(iminor(inode));
-	if(dev == NULL)
-		return -ENODEV;
-	
-	switch(cmd & 0x0000ffff) {
-	case VFCGCTRL:
-#if 0
-		VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCGCTRL)\n", dev->instance));
-#endif
-		tmp = sbus_readl(&dev->regs->control);
-		if(copy_to_user(argp, &tmp, sizeof(unsigned int))) {
-			ret = -EFAULT;
-			break;
-		}
-		ret = 0;
-		break;
-	case VFCSCTRL:
-		ret = vfc_set_control_ioctl(inode, file, dev, arg);
-		break;
-	case VFCGVID:
-		ret = vfc_get_video_ioctl(inode, file, dev, arg);
-		break;
-	case VFCSVID:
-		ret = vfc_set_video_ioctl(inode, file, dev, arg);
-		break;
-	case VFCHUE:
-		VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCHUE)\n", dev->instance));
-		if(copy_from_user(&tmp,argp,sizeof(unsigned int))) {
-			VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer "
-						"to IOCTL(VFCHUE)", dev->instance));
-			ret = -EFAULT;
-		} else {
-			VFC_SAA9051_SA(dev,VFC_SAA9051_HUE) = tmp;
-			vfc_update_saa9051(dev);
-			ret = 0;
-		}
-		break;
-	case VFCPORTCHG:
-		ret = vfc_port_change_ioctl(inode, file, dev, arg);
-		break;
-	case VFCRDINFO:
-		ret = -EINVAL;
-		VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCRDINFO)\n", dev->instance));
-		break;
-	default:
-		ret = vfc_debug(vfc_get_dev_ptr(iminor(inode)), cmd, argp);
-		break;
-	};
-
-	return ret;
-}
-
-static int vfc_mmap(struct file *file, struct vm_area_struct *vma) 
-{
-	unsigned int map_size, ret, map_offset;
-	struct vfc_dev *dev;
-	
-	dev = vfc_get_dev_ptr(iminor(file->f_path.dentry->d_inode));
-	if(dev == NULL)
-		return -ENODEV;
-
-	map_size = vma->vm_end - vma->vm_start;
-	if(map_size > sizeof(struct vfc_regs)) 
-		map_size = sizeof(struct vfc_regs);
-
-	vma->vm_flags |=
-		(VM_MAYREAD | VM_MAYWRITE | VM_MAYSHARE);
-	map_offset = (unsigned int) (long)dev->phys_regs;
-	ret = io_remap_pfn_range(vma, vma->vm_start,
-				  MK_IOSPACE_PFN(dev->which_io,
-					map_offset >> PAGE_SHIFT),
-				  map_size, vma->vm_page_prot);
-
-	if(ret)
-		return -EAGAIN;
-
-	return 0;
-}
-
-
-static const struct file_operations vfc_fops = {
-	.owner =	THIS_MODULE,
-	.llseek =	no_llseek,
-	.ioctl =	vfc_ioctl,
-	.mmap =		vfc_mmap,
-	.open =		vfc_open,
-	.release =	vfc_release,
-};
-
-static int vfc_probe(void)
-{
-	struct sbus_bus *sbus;
-	struct sbus_dev *sdev = NULL;
-	int ret;
-	int instance = 0, cards = 0;
-
-	for_all_sbusdev(sdev, sbus) {
-		if (strcmp(sdev->prom_name, "vfc") == 0) {
-			cards++;
-			continue;
-		}
-	}
-
-	if (!cards)
-		return -ENODEV;
-
-	vfc_dev_lst = kcalloc(cards + 1, sizeof(struct vfc_dev*), GFP_KERNEL);
-	if (vfc_dev_lst == NULL)
-		return -ENOMEM;
-	vfc_dev_lst[cards] = NULL;
-
-	ret = register_chrdev(VFC_MAJOR, vfcstr, &vfc_fops);
-	if(ret) {
-		printk(KERN_ERR "Unable to get major number %d\n", VFC_MAJOR);
-		kfree(vfc_dev_lst);
-		return -EIO;
-	}
-	instance = 0;
-	for_all_sbusdev(sdev, sbus) {
-		if (strcmp(sdev->prom_name, "vfc") == 0) {
-			vfc_dev_lst[instance]=(struct vfc_dev *)
-				kmalloc(sizeof(struct vfc_dev), GFP_KERNEL);
-			if (vfc_dev_lst[instance] == NULL)
-				return -ENOMEM;
-			ret = init_vfc_device(sdev,
-					      vfc_dev_lst[instance],
-					      instance);
-			if(ret) {
-				printk(KERN_ERR "Unable to initialize"
-				       " vfc%d device\n",
-				       instance);
-			} else {
-			}
-		
-			instance++;
-			continue;
-		}
-	}
-
-	return 0;
-}
-
-#ifdef MODULE
-int init_module(void)
-#else 
-int vfc_init(void)
-#endif
-{
-	return vfc_probe();
-}
-
-#ifdef MODULE
-static void deinit_vfc_device(struct vfc_dev *dev)
-{
-	if(dev == NULL)
-		return;
-	sbus_iounmap(dev->regs, sizeof(struct vfc_regs));
-	kfree(dev);
-}
-
-void cleanup_module(void)
-{
-	struct vfc_dev **devp;
-
-	unregister_chrdev(VFC_MAJOR,vfcstr);
-
-	for (devp = vfc_dev_lst; *devp; devp++)
-		deinit_vfc_device(*devp);
-
-	kfree(vfc_dev_lst);
-	return;
-}
-#endif
-
-MODULE_LICENSE("GPL");
-