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Diffstat (limited to 'sound/core/seq/seq_compat.c')
-rw-r--r--sound/core/seq/seq_compat.c137
1 files changed, 137 insertions, 0 deletions
diff --git a/sound/core/seq/seq_compat.c b/sound/core/seq/seq_compat.c
new file mode 100644
index 00000000000..902ad8b0c35
--- /dev/null
+++ b/sound/core/seq/seq_compat.c
@@ -0,0 +1,137 @@
+/*
+ * 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>
+
+struct sndrv_seq_port_info32 {
+ struct sndrv_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(client_t *client, unsigned int cmd,
+ struct sndrv_seq_port_info32 __user *data32)
+{
+ int err = -EFAULT;
+ snd_seq_port_info_t *data;
+ mm_segment_t fs;
+
+ data = kmalloc(sizeof(*data), GFP_KERNEL);
+ if (! data)
+ return -ENOMEM;
+
+ if (copy_from_user(data, data32, sizeof(*data32)) ||
+ 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 sndrv_seq_port_info32),
+ SNDRV_SEQ_IOCTL_DELETE_PORT32 = _IOW ('S', 0x21, struct sndrv_seq_port_info32),
+ SNDRV_SEQ_IOCTL_GET_PORT_INFO32 = _IOWR('S', 0x22, struct sndrv_seq_port_info32),
+ SNDRV_SEQ_IOCTL_SET_PORT_INFO32 = _IOW ('S', 0x23, struct sndrv_seq_port_info32),
+ SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32 = _IOWR('S', 0x52, struct sndrv_seq_port_info32),
+};
+
+static long snd_seq_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ client_t *client = (client_t *) file->private_data;
+ void __user *argp = compat_ptr(arg);
+
+ snd_assert(client != NULL, 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;
+}