diff options
Diffstat (limited to 'sound/core/timer.c')
-rw-r--r-- | sound/core/timer.c | 62 |
1 files changed, 56 insertions, 6 deletions
diff --git a/sound/core/timer.c b/sound/core/timer.c index d808d5554c7a..d2f69039f941 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -65,6 +65,30 @@ struct snd_timer_user { struct mutex ioctl_lock; }; +struct snd_timer_status32 { + s32 tstamp_sec; /* Timestamp - last update */ + s32 tstamp_nsec; + unsigned int resolution; /* current period resolution in ns */ + unsigned int lost; /* counter of master tick lost */ + unsigned int overrun; /* count of read queue overruns */ + unsigned int queue; /* used queue size */ + unsigned char reserved[64]; /* reserved */ +}; + +#define SNDRV_TIMER_IOCTL_STATUS32 _IOR('T', 0x14, struct snd_timer_status32) + +struct snd_timer_status64 { + s64 tstamp_sec; /* Timestamp - last update */ + s64 tstamp_nsec; + unsigned int resolution; /* current period resolution in ns */ + unsigned int lost; /* counter of master tick lost */ + unsigned int overrun; /* count of read queue overruns */ + unsigned int queue; /* used queue size */ + unsigned char reserved[64]; /* reserved */ +}; + +#define SNDRV_TIMER_IOCTL_STATUS64 _IOR('T', 0x14, struct snd_timer_status64) + /* list of timers */ static LIST_HEAD(snd_timer_list); @@ -1875,17 +1899,41 @@ static int snd_timer_user_params(struct file *file, return err; } -static int snd_timer_user_status(struct file *file, - struct snd_timer_status __user *_status) +static int snd_timer_user_status32(struct file *file, + struct snd_timer_status32 __user *_status) + { + struct snd_timer_user *tu; + struct snd_timer_status32 status; + + tu = file->private_data; + if (!tu->timeri) + return -EBADFD; + memset(&status, 0, sizeof(status)); + status.tstamp_sec = tu->tstamp.tv_sec; + status.tstamp_nsec = tu->tstamp.tv_nsec; + status.resolution = snd_timer_resolution(tu->timeri); + status.lost = tu->timeri->lost; + status.overrun = tu->overrun; + spin_lock_irq(&tu->qlock); + status.queue = tu->qused; + spin_unlock_irq(&tu->qlock); + if (copy_to_user(_status, &status, sizeof(status))) + return -EFAULT; + return 0; +} + +static int snd_timer_user_status64(struct file *file, + struct snd_timer_status64 __user *_status) { struct snd_timer_user *tu; - struct snd_timer_status status; + struct snd_timer_status64 status; tu = file->private_data; if (!tu->timeri) return -EBADFD; memset(&status, 0, sizeof(status)); - status.tstamp = timespec64_to_timespec(tu->tstamp); + status.tstamp_sec = tu->tstamp.tv_sec; + status.tstamp_nsec = tu->tstamp.tv_nsec; status.resolution = snd_timer_resolution(tu->timeri); status.lost = tu->timeri->lost; status.overrun = tu->overrun; @@ -2009,8 +2057,10 @@ static long __snd_timer_user_ioctl(struct file *file, unsigned int cmd, return snd_timer_user_info(file, argp); case SNDRV_TIMER_IOCTL_PARAMS: return snd_timer_user_params(file, argp); - case SNDRV_TIMER_IOCTL_STATUS: - return snd_timer_user_status(file, argp); + case SNDRV_TIMER_IOCTL_STATUS32: + return snd_timer_user_status32(file, argp); + case SNDRV_TIMER_IOCTL_STATUS64: + return snd_timer_user_status64(file, argp); case SNDRV_TIMER_IOCTL_START: case SNDRV_TIMER_IOCTL_START_OLD: return snd_timer_user_start(file); |