Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / core / seq / seq_compat.c

diff --git a/kernel/sound/core/seq/seq_compat.c b/kernel/sound/core/seq/seq_compat.c
new file mode 100644 (file)
index 0000000..81f7c10
--- /dev/null
+++ b/kernel/sound/core/seq/seq_compat.c
@@ -0,0 +1,138 @@
+/*
+ *   32bit -> 64bit ioctl wrapper for sequencer 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 seq.c */
+
+#include <linux/compat.h>
+#include <linux/slab.h>
+
+struct snd_seq_port_info32 {
+       struct snd_seq_addr addr;       /* client/port numbers */
+       char name[64];                  /* port name */
+
+       u32 capability; /* port capability bits */
+       u32 type;               /* port type bits */
+       s32 midi_channels;              /* channels per MIDI port */
+       s32 midi_voices;                /* voices per MIDI port */
+       s32 synth_voices;               /* voices per SYNTH port */
+
+       s32 read_use;                   /* R/O: subscribers for output (from this port) */
+       s32 write_use;                  /* R/O: subscribers for input (to this port) */
+
+       u32 kernel;                     /* reserved for kernel use (must be NULL) */
+       u32 flags;              /* misc. conditioning */
+       unsigned char time_queue;       /* queue # for timestamping */
+       char reserved[59];              /* for future use */
+};
+
+static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned int cmd,
+                                       struct snd_seq_port_info32 __user *data32)
+{
+       int err = -EFAULT;
+       struct snd_seq_port_info *data;
+       mm_segment_t fs;
+
+       data = memdup_user(data32, sizeof(*data32));
+       if (IS_ERR(data))
+               return PTR_ERR(data);
+
+       if (get_user(data->flags, &data32->flags) ||
+           get_user(data->time_queue, &data32->time_queue))
+               goto error;
+       data->kernel = NULL;
+
+       fs = snd_enter_user();
+       err = snd_seq_do_ioctl(client, cmd, data);
+       snd_leave_user(fs);
+       if (err < 0)
+               goto error;
+
+       if (copy_to_user(data32, data, sizeof(*data32)) ||
+           put_user(data->flags, &data32->flags) ||
+           put_user(data->time_queue, &data32->time_queue))
+               err = -EFAULT;
+
+ error:
+       kfree(data);
+       return err;
+}
+
+
+
+/*
+ */
+
+enum {
+       SNDRV_SEQ_IOCTL_CREATE_PORT32 = _IOWR('S', 0x20, struct snd_seq_port_info32),
+       SNDRV_SEQ_IOCTL_DELETE_PORT32 = _IOW ('S', 0x21, struct snd_seq_port_info32),
+       SNDRV_SEQ_IOCTL_GET_PORT_INFO32 = _IOWR('S', 0x22, struct snd_seq_port_info32),
+       SNDRV_SEQ_IOCTL_SET_PORT_INFO32 = _IOW ('S', 0x23, struct snd_seq_port_info32),
+       SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32 = _IOWR('S', 0x52, struct snd_seq_port_info32),
+};
+
+static long snd_seq_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
+{
+       struct snd_seq_client *client = file->private_data;
+       void __user *argp = compat_ptr(arg);
+
+       if (snd_BUG_ON(!client))
+               return -ENXIO;
+
+       switch (cmd) {
+       case SNDRV_SEQ_IOCTL_PVERSION:
+       case SNDRV_SEQ_IOCTL_CLIENT_ID:
+       case SNDRV_SEQ_IOCTL_SYSTEM_INFO:
+       case SNDRV_SEQ_IOCTL_GET_CLIENT_INFO:
+       case SNDRV_SEQ_IOCTL_SET_CLIENT_INFO:
+       case SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT:
+       case SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT:
+       case SNDRV_SEQ_IOCTL_CREATE_QUEUE:
+       case SNDRV_SEQ_IOCTL_DELETE_QUEUE:
+       case SNDRV_SEQ_IOCTL_GET_QUEUE_INFO:
+       case SNDRV_SEQ_IOCTL_SET_QUEUE_INFO:
+       case SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE:
+       case SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS:
+       case SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO:
+       case SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO:
+       case SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER:
+       case SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER:
+       case SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT:
+       case SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT:
+       case SNDRV_SEQ_IOCTL_GET_CLIENT_POOL:
+       case SNDRV_SEQ_IOCTL_SET_CLIENT_POOL:
+       case SNDRV_SEQ_IOCTL_REMOVE_EVENTS:
+       case SNDRV_SEQ_IOCTL_QUERY_SUBS:
+       case SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION:
+       case SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT:
+       case SNDRV_SEQ_IOCTL_RUNNING_MODE:
+               return snd_seq_do_ioctl(client, cmd, argp);
+       case SNDRV_SEQ_IOCTL_CREATE_PORT32:
+               return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_CREATE_PORT, argp);
+       case SNDRV_SEQ_IOCTL_DELETE_PORT32:
+               return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_DELETE_PORT, argp);
+       case SNDRV_SEQ_IOCTL_GET_PORT_INFO32:
+               return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_GET_PORT_INFO, argp);
+       case SNDRV_SEQ_IOCTL_SET_PORT_INFO32:
+               return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_SET_PORT_INFO, argp);
+       case SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32:
+               return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT, argp);
+       }
+       return -ENOIOCTLCMD;
+}