mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 05:04:00 +08:00
53d2f744af
Modules: RTC timer driver,Timer Midlevel Remove xxx_t typedefs from the core timer. Signed-off-by: Takashi Iwai <tiwai@suse.de>
125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
/*
|
|
* 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;
|
|
snd_assert(tu->timeri != NULL, return -ENXIO);
|
|
t = tu->timeri->timer;
|
|
snd_assert(t != NULL, return -ENXIO);
|
|
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_status status;
|
|
|
|
tu = file->private_data;
|
|
snd_assert(tu->timeri != NULL, return -ENXIO);
|
|
memset(&status, 0, sizeof(status));
|
|
status.tstamp = tu->tstamp;
|
|
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;
|
|
}
|
|
|
|
/*
|
|
*/
|
|
|
|
enum {
|
|
SNDRV_TIMER_IOCTL_INFO32 = _IOR('T', 0x11, struct snd_timer_info32),
|
|
SNDRV_TIMER_IOCTL_STATUS32 = _IOW('T', 0x14, struct snd_timer_status32),
|
|
};
|
|
|
|
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);
|
|
}
|
|
return -ENOIOCTLCMD;
|
|
}
|