2 * 32bit -> 64bit ioctl wrapper for timer API
3 * Copyright (c) by Takashi Iwai <tiwai@suse.de>
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.
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.
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
21 /* This file included from timer.c */
23 #include <linux/compat.h>
25 struct snd_timer_info32 {
29 unsigned char name[80];
32 unsigned char reserved[64];
35 static int snd_timer_user_info_compat(struct file *file,
36 struct snd_timer_info32 __user *_info)
38 struct snd_timer_user *tu;
39 struct snd_timer_info32 info;
42 tu = file->private_data;
43 if (snd_BUG_ON(!tu->timeri))
45 t = tu->timeri->timer;
48 memset(&info, 0, sizeof(info));
49 info.card = t->card ? t->card->number : -1;
50 if (t->hw.flags & SNDRV_TIMER_HW_SLAVE)
51 info.flags |= SNDRV_TIMER_FLG_SLAVE;
52 strlcpy(info.id, t->id, sizeof(info.id));
53 strlcpy(info.name, t->name, sizeof(info.name));
54 info.resolution = t->hw.resolution;
55 if (copy_to_user(_info, &info, sizeof(*_info)))
60 struct snd_timer_status32 {
61 struct compat_timespec tstamp;
66 unsigned char reserved[64];
69 static int snd_timer_user_status_compat(struct file *file,
70 struct snd_timer_status32 __user *_status)
72 struct snd_timer_user *tu;
73 struct snd_timer_status32 status;
75 tu = file->private_data;
76 if (snd_BUG_ON(!tu->timeri))
78 memset(&status, 0, sizeof(status));
79 status.tstamp.tv_sec = tu->tstamp.tv_sec;
80 status.tstamp.tv_nsec = tu->tstamp.tv_nsec;
81 status.resolution = snd_timer_resolution(tu->timeri);
82 status.lost = tu->timeri->lost;
83 status.overrun = tu->overrun;
84 spin_lock_irq(&tu->qlock);
85 status.queue = tu->qused;
86 spin_unlock_irq(&tu->qlock);
87 if (copy_to_user(_status, &status, sizeof(status)))
93 /* X32 ABI has the same struct as x86-64 */
94 #define snd_timer_user_status_x32(file, s) \
95 snd_timer_user_status(file, s)
96 #endif /* CONFIG_X86_X32 */
102 SNDRV_TIMER_IOCTL_INFO32 = _IOR('T', 0x11, struct snd_timer_info32),
103 SNDRV_TIMER_IOCTL_STATUS32 = _IOW('T', 0x14, struct snd_timer_status32),
104 #ifdef CONFIG_X86_X32
105 SNDRV_TIMER_IOCTL_STATUS_X32 = _IOW('T', 0x14, struct snd_timer_status),
106 #endif /* CONFIG_X86_X32 */
109 static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
111 void __user *argp = compat_ptr(arg);
114 case SNDRV_TIMER_IOCTL_PVERSION:
115 case SNDRV_TIMER_IOCTL_TREAD:
116 case SNDRV_TIMER_IOCTL_GINFO:
117 case SNDRV_TIMER_IOCTL_GPARAMS:
118 case SNDRV_TIMER_IOCTL_GSTATUS:
119 case SNDRV_TIMER_IOCTL_SELECT:
120 case SNDRV_TIMER_IOCTL_PARAMS:
121 case SNDRV_TIMER_IOCTL_START:
122 case SNDRV_TIMER_IOCTL_START_OLD:
123 case SNDRV_TIMER_IOCTL_STOP:
124 case SNDRV_TIMER_IOCTL_STOP_OLD:
125 case SNDRV_TIMER_IOCTL_CONTINUE:
126 case SNDRV_TIMER_IOCTL_CONTINUE_OLD:
127 case SNDRV_TIMER_IOCTL_PAUSE:
128 case SNDRV_TIMER_IOCTL_PAUSE_OLD:
129 case SNDRV_TIMER_IOCTL_NEXT_DEVICE:
130 return snd_timer_user_ioctl(file, cmd, (unsigned long)argp);
131 case SNDRV_TIMER_IOCTL_INFO32:
132 return snd_timer_user_info_compat(file, argp);
133 case SNDRV_TIMER_IOCTL_STATUS32:
134 return snd_timer_user_status_compat(file, argp);
135 #ifdef CONFIG_X86_X32
136 case SNDRV_TIMER_IOCTL_STATUS_X32:
137 return snd_timer_user_status_x32(file, argp);
138 #endif /* CONFIG_X86_X32 */