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/*
* 32bit -> 64bit ioctl wrapper for hwdep 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 <sound/core.h>
#include <sound/hwdep.h>
#include <asm/uaccess.h>
#include "ioctl32.h"
struct sndrv_hwdep_dsp_image32 {
u32 index;
unsigned char name[64];
u32 image; /* pointer */
u32 length;
u32 driver_data;
} /* don't set packed attribute here */;
static int _snd_ioctl32_hwdep_dsp_image(unsigned int fd, unsigned int cmd, unsigned long arg, struct file *file, unsigned int native_ctl)
{
struct sndrv_hwdep_dsp_image data;
struct sndrv_hwdep_dsp_image data32;
mm_segment_t oldseg;
int err;
if (copy_from_user(&data32, (void*)arg, sizeof(data32)))
return -EFAULT;
memset(&data, 0, sizeof(data));
data.index = data32.index;
memcpy(data.name, data32.name, sizeof(data.name));
data.image = A(data32.image);
data.length = data32.length;
data.driver_data = data32.driver_data;
oldseg = get_fs();
set_fs(KERNEL_DS);
err = file->f_op->ioctl(file->f_dentry->d_inode, file, native_ctl, (unsigned long)&data);
set_fs(oldseg);
return err;
}
DEFINE_ALSA_IOCTL_ENTRY(hwdep_dsp_image, hwdep_dsp_image, SNDRV_HWDEP_IOCTL_DSP_LOAD);
#define AP(x) snd_ioctl32_##x
enum {
SNDRV_HWDEP_IOCTL_DSP_LOAD32 = _IOW('H', 0x03, struct sndrv_hwdep_dsp_image32)
};
struct ioctl32_mapper hwdep_mappers[] = {
MAP_COMPAT(SNDRV_HWDEP_IOCTL_PVERSION),
MAP_COMPAT(SNDRV_HWDEP_IOCTL_INFO),
MAP_COMPAT(SNDRV_HWDEP_IOCTL_DSP_STATUS),
{ SNDRV_HWDEP_IOCTL_DSP_LOAD32, AP(hwdep_dsp_image) },
{ 0 },
};