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1da177e4 LT |
1 | /* |
2 | * 32bit -> 64bit ioctl wrapper for sequencer API | |
3 | * Copyright (c) by Takashi Iwai <tiwai@suse.de> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | * | |
19 | */ | |
20 | ||
21 | /* This file included from seq.c */ | |
22 | ||
23 | #include <linux/compat.h> | |
5a0e3ad6 | 24 | #include <linux/slab.h> |
1da177e4 | 25 | |
c7e0b5bf TI |
26 | struct snd_seq_port_info32 { |
27 | struct snd_seq_addr addr; /* client/port numbers */ | |
1da177e4 LT |
28 | char name[64]; /* port name */ |
29 | ||
30 | u32 capability; /* port capability bits */ | |
31 | u32 type; /* port type bits */ | |
32 | s32 midi_channels; /* channels per MIDI port */ | |
33 | s32 midi_voices; /* voices per MIDI port */ | |
34 | s32 synth_voices; /* voices per SYNTH port */ | |
35 | ||
36 | s32 read_use; /* R/O: subscribers for output (from this port) */ | |
37 | s32 write_use; /* R/O: subscribers for input (to this port) */ | |
38 | ||
39 | u32 kernel; /* reserved for kernel use (must be NULL) */ | |
40 | u32 flags; /* misc. conditioning */ | |
41 | unsigned char time_queue; /* queue # for timestamping */ | |
42 | char reserved[59]; /* for future use */ | |
43 | }; | |
44 | ||
c7e0b5bf TI |
45 | static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned int cmd, |
46 | struct snd_seq_port_info32 __user *data32) | |
1da177e4 LT |
47 | { |
48 | int err = -EFAULT; | |
c7e0b5bf | 49 | struct snd_seq_port_info *data; |
1da177e4 | 50 | |
9586495d NB |
51 | data = kmalloc(sizeof(*data), GFP_KERNEL); |
52 | if (!data) | |
53 | return -ENOMEM; | |
1da177e4 | 54 | |
9586495d NB |
55 | if (copy_from_user(data, data32, sizeof(*data32)) || |
56 | get_user(data->flags, &data32->flags) || | |
1da177e4 LT |
57 | get_user(data->time_queue, &data32->time_queue)) |
58 | goto error; | |
59 | data->kernel = NULL; | |
60 | ||
e12ec251 | 61 | err = snd_seq_kernel_client_ctl(client->number, cmd, &data); |
1da177e4 LT |
62 | if (err < 0) |
63 | goto error; | |
64 | ||
65 | if (copy_to_user(data32, data, sizeof(*data32)) || | |
66 | put_user(data->flags, &data32->flags) || | |
67 | put_user(data->time_queue, &data32->time_queue)) | |
68 | err = -EFAULT; | |
69 | ||
70 | error: | |
71 | kfree(data); | |
72 | return err; | |
73 | } | |
74 | ||
75 | ||
76 | ||
77 | /* | |
78 | */ | |
79 | ||
80 | enum { | |
c7e0b5bf TI |
81 | SNDRV_SEQ_IOCTL_CREATE_PORT32 = _IOWR('S', 0x20, struct snd_seq_port_info32), |
82 | SNDRV_SEQ_IOCTL_DELETE_PORT32 = _IOW ('S', 0x21, struct snd_seq_port_info32), | |
83 | SNDRV_SEQ_IOCTL_GET_PORT_INFO32 = _IOWR('S', 0x22, struct snd_seq_port_info32), | |
84 | SNDRV_SEQ_IOCTL_SET_PORT_INFO32 = _IOW ('S', 0x23, struct snd_seq_port_info32), | |
85 | SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32 = _IOWR('S', 0x52, struct snd_seq_port_info32), | |
1da177e4 LT |
86 | }; |
87 | ||
88 | static long snd_seq_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) | |
89 | { | |
c7e0b5bf | 90 | struct snd_seq_client *client = file->private_data; |
1da177e4 LT |
91 | void __user *argp = compat_ptr(arg); |
92 | ||
7eaa943c TI |
93 | if (snd_BUG_ON(!client)) |
94 | return -ENXIO; | |
1da177e4 LT |
95 | |
96 | switch (cmd) { | |
97 | case SNDRV_SEQ_IOCTL_PVERSION: | |
98 | case SNDRV_SEQ_IOCTL_CLIENT_ID: | |
99 | case SNDRV_SEQ_IOCTL_SYSTEM_INFO: | |
100 | case SNDRV_SEQ_IOCTL_GET_CLIENT_INFO: | |
101 | case SNDRV_SEQ_IOCTL_SET_CLIENT_INFO: | |
102 | case SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT: | |
103 | case SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT: | |
104 | case SNDRV_SEQ_IOCTL_CREATE_QUEUE: | |
105 | case SNDRV_SEQ_IOCTL_DELETE_QUEUE: | |
106 | case SNDRV_SEQ_IOCTL_GET_QUEUE_INFO: | |
107 | case SNDRV_SEQ_IOCTL_SET_QUEUE_INFO: | |
108 | case SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE: | |
109 | case SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS: | |
110 | case SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO: | |
111 | case SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO: | |
112 | case SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER: | |
113 | case SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER: | |
114 | case SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT: | |
115 | case SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT: | |
116 | case SNDRV_SEQ_IOCTL_GET_CLIENT_POOL: | |
117 | case SNDRV_SEQ_IOCTL_SET_CLIENT_POOL: | |
118 | case SNDRV_SEQ_IOCTL_REMOVE_EVENTS: | |
119 | case SNDRV_SEQ_IOCTL_QUERY_SUBS: | |
120 | case SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION: | |
121 | case SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT: | |
122 | case SNDRV_SEQ_IOCTL_RUNNING_MODE: | |
e12ec251 | 123 | return snd_seq_ioctl(file, cmd, arg); |
1da177e4 LT |
124 | case SNDRV_SEQ_IOCTL_CREATE_PORT32: |
125 | return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_CREATE_PORT, argp); | |
126 | case SNDRV_SEQ_IOCTL_DELETE_PORT32: | |
127 | return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_DELETE_PORT, argp); | |
128 | case SNDRV_SEQ_IOCTL_GET_PORT_INFO32: | |
129 | return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_GET_PORT_INFO, argp); | |
130 | case SNDRV_SEQ_IOCTL_SET_PORT_INFO32: | |
131 | return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_SET_PORT_INFO, argp); | |
132 | case SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32: | |
133 | return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT, argp); | |
134 | } | |
135 | return -ENOIOCTLCMD; | |
136 | } |