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Sourcecode: alsa-driver version File versions

timer32_old.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
 *
 */

#include <sound/driver.h>
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/compat.h>
#include <sound/core.h>
#include <sound/timer.h>
#include <asm/uaccess.h>
#include "ioctl32_old.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];
};

#define CVT_snd_timer_info()\
{\
      COPY(flags);\
      COPY(card);\
      memcpy(dst->id, src->id, sizeof(src->id));\
      memcpy(dst->name, src->name, sizeof(src->name));\
      COPY(resolution);\
}

struct snd_timer_status32 {
      struct compat_timespec tstamp;
      u32 resolution;
      u32 lost;
      u32 overrun;
      u32 queue;
      unsigned char reserved[64];
};

#define CVT_snd_timer_status()\
{\
      COPY(tstamp.tv_sec);\
      COPY(tstamp.tv_nsec);\
      COPY(resolution);\
      COPY(lost);\
      COPY(overrun);\
      COPY(queue);\
}

DEFINE_ALSA_IOCTL(timer_info);
DEFINE_ALSA_IOCTL(timer_status);

DEFINE_ALSA_IOCTL_ENTRY(timer_info, timer_info, SNDRV_TIMER_IOCTL_INFO);
DEFINE_ALSA_IOCTL_ENTRY(timer_status, timer_status, SNDRV_TIMER_IOCTL_STATUS);

/*
 */

#define AP(x) snd_ioctl32_##x

enum {
      SNDRV_TIMER_IOCTL_INFO32 = _IOR('T', 0x11, struct snd_timer_info32),
      SNDRV_TIMER_IOCTL_STATUS32 = _IOW('T', 0x14, struct snd_timer_status32),
};

struct ioctl32_mapper timer_mappers[] = {
      MAP_COMPAT(SNDRV_TIMER_IOCTL_PVERSION),
      MAP_COMPAT(SNDRV_TIMER_IOCTL_NEXT_DEVICE),
      MAP_COMPAT(SNDRV_TIMER_IOCTL_SELECT),
      { SNDRV_TIMER_IOCTL_INFO32, AP(timer_info) },
      MAP_COMPAT(SNDRV_TIMER_IOCTL_PARAMS),
      { SNDRV_TIMER_IOCTL_STATUS32, AP(timer_status) },
#if 0
      /* ** FIXME **
       * The following four entries are disabled because they conflict
       * with the TCOC* definitions.
       * Unfortunately, the current ioctl32 wrapper uses a single
       * hash table for all devices.  Once when the wrapper is fixed
       * with the table based on devices, they'll be back again.
       */
      MAP_COMPAT(SNDRV_TIMER_IOCTL_START),
      MAP_COMPAT(SNDRV_TIMER_IOCTL_STOP),
      MAP_COMPAT(SNDRV_TIMER_IOCTL_CONTINUE),
      MAP_COMPAT(SNDRV_TIMER_IOCTL_PAUSE),
#endif
      { 0 },
};

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