ia32_ioctl.c

上传linux-jx2410的源代码

/*
 * IA32 Architecture-specific ioctl shim code
 *
 * Copyright (C) 2000 VA Linux Co
 * Copyright (C) 2000 Don Dugger <[e-mail]>
 * Copyright (C) 2001 Hewlett-Packard Co
 *	David Mosberger-Tang <[e-mail]>
 */

#include <linux/types.h>
#include <linux/dirent.h>
#include <linux/msdos_fs.h>
#include <linux/mtio.h>
#include <linux/ncp_fs.h>
#include <linux/capi.h>
#include <linux/videodev.h>
#include <linux/synclink.h>
#include <linux/atmdev.h>
#include <linux/atm_eni.h>
#include <linux/atm_nicstar.h>
#include <linux/atm_zatm.h>
#include <linux/atm_idt77105.h>
#include <linux/ppp_defs.h>
#include <linux/if_ppp.h>
#include <linux/ixjuser.h>
#include <linux/i2o-dev.h>

#include <asm/ia32.h>

#include <../drivers/char/drm/drm.h>


#define IOCTL_NR(a)	((a) & ~(_IOC_SIZEMASK << _IOC_SIZESHIFT))

#define DO_IOCTL(fd, cmd, arg) ({			\
	int _ret;					\
	mm_segment_t _old_fs = get_fs();		\
							\
	set_fs(KERNEL_DS);				\
	_ret = sys_ioctl(fd, cmd, (unsigned long)arg);	\
	set_fs(_old_fs);				\
	_ret;						\
})

#define P(i)	((void *)(unsigned long)(i))

asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);

static long
put_dirent32 (struct dirent *d, struct linux32_dirent *d32)
{
	size_t namelen = strlen(d->d_name);

	return (put_user(d->d_ino, &d32->d_ino)
		|| put_user(d->d_off, &d32->d_off)
		|| put_user(d->d_reclen, &d32->d_reclen)
		|| copy_to_user(d32->d_name, d->d_name, namelen + 1));
}

asmlinkage long
sys32_ioctl (unsigned int fd, unsigned int cmd, unsigned int arg)
{
	long ret;

	switch (IOCTL_NR(cmd)) {
	      case IOCTL_NR(VFAT_IOCTL_READDIR_SHORT):
	      case IOCTL_NR(VFAT_IOCTL_READDIR_BOTH): {
		      struct linux32_dirent *d32 = P(arg);
		      struct dirent d[2];

		      ret = DO_IOCTL(fd, _IOR('r', _IOC_NR(cmd),
					      struct dirent [2]),
				     (unsigned long) d);
		      if (ret < 0)
			  return ret;

		      if (put_dirent32(d, d32) || put_dirent32(d + 1, d32 + 1))
			  return -EFAULT;

		      return ret;
	      }

	      case IOCTL_NR(DRM_IOCTL_VERSION):
	      {
		      drm_version_t ver;
		      struct {
			      int	version_major;
			      int	version_minor;
			      int	version_patchlevel;
			      unsigned int name_len;
			      unsigned int name; /* pointer */
			      unsigned int date_len;
			      unsigned int date; /* pointer */
			      unsigned int desc_len;
			      unsigned int desc; /* pointer */
		      } ver32;

		      if (copy_from_user(&ver32, P(arg), sizeof(ver32)))
			      return -EFAULT;
		      ver.name_len = ver32.name_len;
		      ver.name = P(ver32.name);
		      ver.date_len = ver32.date_len;
		      ver.date = P(ver32.date);
		      ver.desc_len = ver32.desc_len;
		      ver.desc = P(ver32.desc);
		      ret = DO_IOCTL(fd, DRM_IOCTL_VERSION, &ver);
		      if (ret >= 0) {
			      ver32.version_major = ver.version_major;
			      ver32.version_minor = ver.version_minor;
			      ver32.version_patchlevel = ver.version_patchlevel;
			      ver32.name_len = ver.name_len;
			      ver32.date_len = ver.date_len;
			      ver32.desc_len = ver.desc_len;
			      if (copy_to_user(P(arg), &ver32, sizeof(ver32)))
				      return -EFAULT;
		      }
		      return ret;
	      }

	      case IOCTL_NR(DRM_IOCTL_GET_UNIQUE):
	      {
		      drm_unique_t un;
		      struct {
			      unsigned int unique_len;
			      unsigned int unique;
		      } un32;

		      if (copy_from_user(&un32, P(arg), sizeof(un32)))
			      return -EFAULT;
		      un.unique_len = un32.unique_len;
		      un.unique = P(un32.unique);
		      ret = DO_IOCTL(fd, DRM_IOCTL_GET_UNIQUE, &un);
		      if (ret >= 0) {
			      un32.unique_len = un.unique_len;
			      if (copy_to_user(P(arg), &un32, sizeof(un32)))
				      return -EFAULT;
		      }
		      return ret;
	      }
	      case IOCTL_NR(DRM_IOCTL_SET_UNIQUE):
	      case IOCTL_NR(DRM_IOCTL_ADD_MAP):
	      case IOCTL_NR(DRM_IOCTL_ADD_BUFS):
	      case IOCTL_NR(DRM_IOCTL_MARK_BUFS):
	      case IOCTL_NR(DRM_IOCTL_INFO_BUFS):
	      case IOCTL_NR(DRM_IOCTL_MAP_BUFS):
	      case IOCTL_NR(DRM_IOCTL_FREE_BUFS):
	      case IOCTL_NR(DRM_IOCTL_ADD_CTX):
	      case IOCTL_NR(DRM_IOCTL_RM_CTX):
	      case IOCTL_NR(DRM_IOCTL_MOD_CTX):
	      case IOCTL_NR(DRM_IOCTL_GET_CTX):
	      case IOCTL_NR(DRM_IOCTL_SWITCH_CTX):
	      case IOCTL_NR(DRM_IOCTL_NEW_CTX):
	      case IOCTL_NR(DRM_IOCTL_RES_CTX):

	      case IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE):
	      case IOCTL_NR(DRM_IOCTL_AGP_RELEASE):
	      case IOCTL_NR(DRM_IOCTL_AGP_ENABLE):
	      case IOCTL_NR(DRM_IOCTL_AGP_INFO):
	      case IOCTL_NR(DRM_IOCTL_AGP_ALLOC):
	      case IOCTL_NR(DRM_IOCTL_AGP_FREE):
	      case IOCTL_NR(DRM_IOCTL_AGP_BIND):
	      case IOCTL_NR(DRM_IOCTL_AGP_UNBIND):

		/* Mga specific ioctls */

	      case IOCTL_NR(DRM_IOCTL_MGA_INIT):

		/* I810 specific ioctls */

	      case IOCTL_NR(DRM_IOCTL_I810_GETBUF):
	      case IOCTL_NR(DRM_IOCTL_I810_COPY):

	      case IOCTL_NR(MTIOCGET):
	      case IOCTL_NR(MTIOCPOS):
	      case IOCTL_NR(MTIOCGETCONFIG):
	      case IOCTL_NR(MTIOCSETCONFIG):
	      case IOCTL_NR(PPPIOCSCOMPRESS):
	      case IOCTL_NR(PPPIOCGIDLE):
	      case IOCTL_NR(NCP_IOC_GET_FS_INFO_V2):
	      case IOCTL_NR(NCP_IOC_GETOBJECTNAME):
	      case IOCTL_NR(NCP_IOC_SETOBJECTNAME):
	      case IOCTL_NR(NCP_IOC_GETPRIVATEDATA):
	      case IOCTL_NR(NCP_IOC_SETPRIVATEDATA):
	      case IOCTL_NR(NCP_IOC_GETMOUNTUID2):
	      case IOCTL_NR(CAPI_MANUFACTURER_CMD):
	      case IOCTL_NR(VIDIOCGTUNER):
	      case IOCTL_NR(VIDIOCSTUNER):
	      case IOCTL_NR(VIDIOCGWIN):
	      case IOCTL_NR(VIDIOCSWIN):
	      case IOCTL_NR(VIDIOCGFBUF):
	      case IOCTL_NR(VIDIOCSFBUF):
	      case IOCTL_NR(MGSL_IOCSPARAMS):
	      case IOCTL_NR(MGSL_IOCGPARAMS):
	      case IOCTL_NR(ATM_GETNAMES):
	      case IOCTL_NR(ATM_GETLINKRATE):
	      case IOCTL_NR(ATM_GETTYPE):
	      case IOCTL_NR(ATM_GETESI):
	      case IOCTL_NR(ATM_GETADDR):
	      case IOCTL_NR(ATM_RSTADDR):
	      case IOCTL_NR(ATM_ADDADDR):
	      case IOCTL_NR(ATM_DELADDR):
	      case IOCTL_NR(ATM_GETCIRANGE):
	      case IOCTL_NR(ATM_SETCIRANGE):
	      case IOCTL_NR(ATM_SETESI):
	      case IOCTL_NR(ATM_SETESIF):
	      case IOCTL_NR(ATM_GETSTAT):
	      case IOCTL_NR(ATM_GETSTATZ):
	      case IOCTL_NR(ATM_GETLOOP):
	      case IOCTL_NR(ATM_SETLOOP):
	      case IOCTL_NR(ATM_QUERYLOOP):
	      case IOCTL_NR(ENI_SETMULT):
	      case IOCTL_NR(NS_GETPSTAT):
		/* case IOCTL_NR(NS_SETBUFLEV): This is a duplicate case with ZATM_GETPOOLZ */
	      case IOCTL_NR(ZATM_GETPOOLZ):
	      case IOCTL_NR(ZATM_GETPOOL):
	      case IOCTL_NR(ZATM_SETPOOL):
	      case IOCTL_NR(ZATM_GETTHIST):
	      case IOCTL_NR(IDT77105_GETSTAT):
	      case IOCTL_NR(IDT77105_GETSTATZ):
	      case IOCTL_NR(IXJCTL_TONE_CADENCE):
	      case IOCTL_NR(IXJCTL_FRAMES_READ):
	      case IOCTL_NR(IXJCTL_FRAMES_WRITTEN):
	      case IOCTL_NR(IXJCTL_READ_WAIT):
	      case IOCTL_NR(IXJCTL_WRITE_WAIT):
	      case IOCTL_NR(IXJCTL_DRYBUFFER_READ):
	      case IOCTL_NR(I2OHRTGET):
	      case IOCTL_NR(I2OLCTGET):
	      case IOCTL_NR(I2OPARMSET):
	      case IOCTL_NR(I2OPARMGET):
	      case IOCTL_NR(I2OSWDL):
	      case IOCTL_NR(I2OSWUL):
	      case IOCTL_NR(I2OSWDEL):
	      case IOCTL_NR(I2OHTML):
		break;
	      default:
		return sys_ioctl(fd, cmd, (unsigned long)arg);

	}
	printk("%x:unimplemented IA32 ioctl system call\n", cmd);
	return -EINVAL;
}