mirror of
https://github.com/adulau/aha.git
synced 2024-12-27 11:16:11 +00:00
48c9d417d7
Modules: RawMidi Midlevel Remove xxx_t typedefs from the core raw MIDI codes. Signed-off-by: Takashi Iwai <tiwai@suse.de>
120 lines
3.5 KiB
C
120 lines
3.5 KiB
C
/*
|
|
* 32bit -> 64bit ioctl wrapper for raw MIDI 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 rawmidi.c */
|
|
|
|
#include <linux/compat.h>
|
|
|
|
struct snd_rawmidi_params32 {
|
|
s32 stream;
|
|
u32 buffer_size;
|
|
u32 avail_min;
|
|
unsigned int no_active_sensing; /* avoid bit-field */
|
|
unsigned char reserved[16];
|
|
} __attribute__((packed));
|
|
|
|
static int snd_rawmidi_ioctl_params_compat(struct snd_rawmidi_file *rfile,
|
|
struct snd_rawmidi_params32 __user *src)
|
|
{
|
|
struct snd_rawmidi_params params;
|
|
unsigned int val;
|
|
|
|
if (rfile->output == NULL)
|
|
return -EINVAL;
|
|
if (get_user(params.stream, &src->stream) ||
|
|
get_user(params.buffer_size, &src->buffer_size) ||
|
|
get_user(params.avail_min, &src->avail_min) ||
|
|
get_user(val, &src->no_active_sensing))
|
|
return -EFAULT;
|
|
params.no_active_sensing = val;
|
|
switch (params.stream) {
|
|
case SNDRV_RAWMIDI_STREAM_OUTPUT:
|
|
return snd_rawmidi_output_params(rfile->output, ¶ms);
|
|
case SNDRV_RAWMIDI_STREAM_INPUT:
|
|
return snd_rawmidi_input_params(rfile->input, ¶ms);
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
struct snd_rawmidi_status32 {
|
|
s32 stream;
|
|
struct compat_timespec tstamp;
|
|
u32 avail;
|
|
u32 xruns;
|
|
unsigned char reserved[16];
|
|
} __attribute__((packed));
|
|
|
|
static int snd_rawmidi_ioctl_status_compat(struct snd_rawmidi_file *rfile,
|
|
struct snd_rawmidi_status32 __user *src)
|
|
{
|
|
int err;
|
|
struct snd_rawmidi_status status;
|
|
|
|
if (rfile->output == NULL)
|
|
return -EINVAL;
|
|
if (get_user(status.stream, &src->stream))
|
|
return -EFAULT;
|
|
|
|
switch (status.stream) {
|
|
case SNDRV_RAWMIDI_STREAM_OUTPUT:
|
|
err = snd_rawmidi_output_status(rfile->output, &status);
|
|
break;
|
|
case SNDRV_RAWMIDI_STREAM_INPUT:
|
|
err = snd_rawmidi_input_status(rfile->input, &status);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (put_user(status.tstamp.tv_sec, &src->tstamp.tv_sec) ||
|
|
put_user(status.tstamp.tv_nsec, &src->tstamp.tv_nsec) ||
|
|
put_user(status.avail, &src->avail) ||
|
|
put_user(status.xruns, &src->xruns))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
enum {
|
|
SNDRV_RAWMIDI_IOCTL_PARAMS32 = _IOWR('W', 0x10, struct snd_rawmidi_params32),
|
|
SNDRV_RAWMIDI_IOCTL_STATUS32 = _IOWR('W', 0x20, struct snd_rawmidi_status32),
|
|
};
|
|
|
|
static long snd_rawmidi_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct snd_rawmidi_file *rfile;
|
|
void __user *argp = compat_ptr(arg);
|
|
|
|
rfile = file->private_data;
|
|
switch (cmd) {
|
|
case SNDRV_RAWMIDI_IOCTL_PVERSION:
|
|
case SNDRV_RAWMIDI_IOCTL_INFO:
|
|
case SNDRV_RAWMIDI_IOCTL_DROP:
|
|
case SNDRV_RAWMIDI_IOCTL_DRAIN:
|
|
return snd_rawmidi_ioctl(file, cmd, (unsigned long)argp);
|
|
case SNDRV_RAWMIDI_IOCTL_PARAMS32:
|
|
return snd_rawmidi_ioctl_params_compat(rfile, argp);
|
|
case SNDRV_RAWMIDI_IOCTL_STATUS32:
|
|
return snd_rawmidi_ioctl_status_compat(rfile, argp);
|
|
}
|
|
return -ENOIOCTLCMD;
|
|
}
|