| /* |
| * 32bit -> 64bit ioctl wrapper for timer API |
| * Copyright (c) by Takashi Iwai <tiwai@suse.de> |
| * |
| * 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 |
| * |
| */ |
| |
| /* This file included from timer.c */ |
| |
| #include <linux/compat.h> |
| |
| struct snd_timer_info32 { |
| u32 flags; |
| s32 card; |
| unsigned char id[64]; |
| unsigned char name[80]; |
| u32 reserved0; |
| u32 resolution; |
| unsigned char reserved[64]; |
| }; |
| |
| static int snd_timer_user_info_compat(struct file *file, |
| struct snd_timer_info32 __user *_info) |
| { |
| struct snd_timer_user *tu; |
| struct snd_timer_info32 info; |
| struct snd_timer *t; |
| |
| tu = file->private_data; |
| if (!tu->timeri) |
| return -EBADFD; |
| t = tu->timeri->timer; |
| if (!t) |
| return -EBADFD; |
| memset(&info, 0, sizeof(info)); |
| info.card = t->card ? t->card->number : -1; |
| if (t->hw.flags & SNDRV_TIMER_HW_SLAVE) |
| info.flags |= SNDRV_TIMER_FLG_SLAVE; |
| strlcpy(info.id, t->id, sizeof(info.id)); |
| strlcpy(info.name, t->name, sizeof(info.name)); |
| info.resolution = t->hw.resolution; |
| if (copy_to_user(_info, &info, sizeof(*_info))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| struct snd_timer_status32 { |
| struct compat_timespec tstamp; |
| u32 resolution; |
| u32 lost; |
| u32 overrun; |
| u32 queue; |
| unsigned char reserved[64]; |
| }; |
| |
| static int snd_timer_user_status_compat(struct file *file, |
| struct snd_timer_status32 __user *_status) |
| { |
| struct snd_timer_user *tu; |
| struct snd_timer_status32 status; |
| |
| tu = file->private_data; |
| if (!tu->timeri) |
| return -EBADFD; |
| memset(&status, 0, sizeof(status)); |
| status.tstamp.tv_sec = tu->tstamp.tv_sec; |
| status.tstamp.tv_nsec = tu->tstamp.tv_nsec; |
| status.resolution = snd_timer_resolution(tu->timeri); |
| status.lost = tu->timeri->lost; |
| status.overrun = tu->overrun; |
| spin_lock_irq(&tu->qlock); |
| status.queue = tu->qused; |
| spin_unlock_irq(&tu->qlock); |
| if (copy_to_user(_status, &status, sizeof(status))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| #ifdef CONFIG_X86_X32 |
| /* X32 ABI has the same struct as x86-64 */ |
| #define snd_timer_user_status_x32(file, s) \ |
| snd_timer_user_status(file, s) |
| #endif /* CONFIG_X86_X32 */ |
| |
| /* |
| */ |
| |
| enum { |
| SNDRV_TIMER_IOCTL_INFO32 = _IOR('T', 0x11, struct snd_timer_info32), |
| SNDRV_TIMER_IOCTL_STATUS32 = _IOW('T', 0x14, struct snd_timer_status32), |
| #ifdef CONFIG_X86_X32 |
| SNDRV_TIMER_IOCTL_STATUS_X32 = _IOW('T', 0x14, struct snd_timer_status), |
| #endif /* CONFIG_X86_X32 */ |
| }; |
| |
| static long __snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, |
| unsigned long arg) |
| { |
| void __user *argp = compat_ptr(arg); |
| |
| switch (cmd) { |
| case SNDRV_TIMER_IOCTL_PVERSION: |
| case SNDRV_TIMER_IOCTL_TREAD: |
| case SNDRV_TIMER_IOCTL_GINFO: |
| case SNDRV_TIMER_IOCTL_GPARAMS: |
| case SNDRV_TIMER_IOCTL_GSTATUS: |
| case SNDRV_TIMER_IOCTL_SELECT: |
| case SNDRV_TIMER_IOCTL_PARAMS: |
| case SNDRV_TIMER_IOCTL_START: |
| case SNDRV_TIMER_IOCTL_START_OLD: |
| case SNDRV_TIMER_IOCTL_STOP: |
| case SNDRV_TIMER_IOCTL_STOP_OLD: |
| case SNDRV_TIMER_IOCTL_CONTINUE: |
| case SNDRV_TIMER_IOCTL_CONTINUE_OLD: |
| case SNDRV_TIMER_IOCTL_PAUSE: |
| case SNDRV_TIMER_IOCTL_PAUSE_OLD: |
| case SNDRV_TIMER_IOCTL_NEXT_DEVICE: |
| return __snd_timer_user_ioctl(file, cmd, (unsigned long)argp); |
| case SNDRV_TIMER_IOCTL_INFO32: |
| return snd_timer_user_info_compat(file, argp); |
| case SNDRV_TIMER_IOCTL_STATUS32: |
| return snd_timer_user_status_compat(file, argp); |
| #ifdef CONFIG_X86_X32 |
| case SNDRV_TIMER_IOCTL_STATUS_X32: |
| return snd_timer_user_status_x32(file, argp); |
| #endif /* CONFIG_X86_X32 */ |
| } |
| return -ENOIOCTLCMD; |
| } |
| |
| static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, |
| unsigned long arg) |
| { |
| struct snd_timer_user *tu = file->private_data; |
| long ret; |
| |
| mutex_lock(&tu->ioctl_lock); |
| ret = __snd_timer_user_ioctl_compat(file, cmd, arg); |
| mutex_unlock(&tu->ioctl_lock); |
| return ret; |
| } |