diff options
Diffstat (limited to 'sound/core/seq/seq_compat.c')
| -rw-r--r-- | sound/core/seq/seq_compat.c | 137 |
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 000000000000..902ad8b0c355 --- /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; +} |