* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*/
+#include <linux/compat.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/file.h>
return delay + substream->runtime->delay;
}
-int snd_pcm_status(struct snd_pcm_substream *substream,
- struct snd_pcm_status *status)
+int snd_pcm_status64(struct snd_pcm_substream *substream,
+ struct snd_pcm_status64 *status)
{
struct snd_pcm_runtime *runtime = substream->runtime;
status->suspended_state = runtime->status->suspended_state;
if (status->state == SNDRV_PCM_STATE_OPEN)
goto _end;
- status->trigger_tstamp = runtime->trigger_tstamp;
+ status->trigger_tstamp_sec = runtime->trigger_tstamp.tv_sec;
+ status->trigger_tstamp_nsec = runtime->trigger_tstamp.tv_nsec;
if (snd_pcm_running(substream)) {
snd_pcm_update_hw_ptr(substream);
if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) {
- status->tstamp = runtime->status->tstamp;
- status->driver_tstamp = runtime->driver_tstamp;
- status->audio_tstamp =
- runtime->status->audio_tstamp;
+ status->tstamp_sec = runtime->status->tstamp.tv_sec;
+ status->tstamp_nsec =
+ runtime->status->tstamp.tv_nsec;
+ status->driver_tstamp_sec =
+ runtime->driver_tstamp.tv_sec;
+ status->driver_tstamp_nsec =
+ runtime->driver_tstamp.tv_nsec;
+ status->audio_tstamp_sec =
+ runtime->status->audio_tstamp.tv_sec;
+ status->audio_tstamp_nsec =
+ runtime->status->audio_tstamp.tv_nsec;
if (runtime->audio_tstamp_report.valid == 1)
/* backwards compatibility, no report provided in COMPAT mode */
snd_pcm_pack_audio_tstamp_report(&status->audio_tstamp_data,
}
} else {
/* get tstamp only in fallback mode and only if enabled */
- if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE)
- snd_pcm_gettime(runtime, &status->tstamp);
+ if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) {
+ struct timespec64 tstamp;
+
+ snd_pcm_gettime(runtime, &tstamp);
+ status->tstamp_sec = tstamp.tv_sec;
+ status->tstamp_nsec = tstamp.tv_nsec;
+ }
}
_tstamp_end:
status->appl_ptr = runtime->control->appl_ptr;
return 0;
}
-static int snd_pcm_status_user(struct snd_pcm_substream *substream,
- struct snd_pcm_status __user * _status,
- bool ext)
+static int snd_pcm_status_user64(struct snd_pcm_substream *substream,
+ struct snd_pcm_status64 __user * _status,
+ bool ext)
{
- struct snd_pcm_status status;
+ struct snd_pcm_status64 status;
int res;
memset(&status, 0, sizeof(status));
if (ext && get_user(status.audio_tstamp_data,
(u32 __user *)(&_status->audio_tstamp_data)))
return -EFAULT;
- res = snd_pcm_status(substream, &status);
+ res = snd_pcm_status64(substream, &status);
if (res < 0)
return res;
if (copy_to_user(_status, &status, sizeof(status)))
return 0;
}
+static int snd_pcm_status_user32(struct snd_pcm_substream *substream,
+ struct snd_pcm_status32 __user * _status,
+ bool ext)
+{
+ struct snd_pcm_status64 status64;
+ struct snd_pcm_status32 status32;
+ int res;
+
+ memset(&status64, 0, sizeof(status64));
+ memset(&status32, 0, sizeof(status32));
+ /*
+ * with extension, parameters are read/write,
+ * get audio_tstamp_data from user,
+ * ignore rest of status structure
+ */
+ if (ext && get_user(status64.audio_tstamp_data,
+ (u32 __user *)(&_status->audio_tstamp_data)))
+ return -EFAULT;
+ res = snd_pcm_status64(substream, &status64);
+ if (res < 0)
+ return res;
+
+ status32 = (struct snd_pcm_status32) {
+ .state = status64.state,
+ .trigger_tstamp_sec = status64.trigger_tstamp_sec,
+ .trigger_tstamp_nsec = status64.trigger_tstamp_nsec,
+ .tstamp_sec = status64.tstamp_sec,
+ .tstamp_nsec = status64.tstamp_nsec,
+ .appl_ptr = status64.appl_ptr,
+ .hw_ptr = status64.hw_ptr,
+ .delay = status64.delay,
+ .avail = status64.avail,
+ .avail_max = status64.avail_max,
+ .overrange = status64.overrange,
+ .suspended_state = status64.suspended_state,
+ .audio_tstamp_data = status64.audio_tstamp_data,
+ .audio_tstamp_sec = status64.audio_tstamp_sec,
+ .audio_tstamp_nsec = status64.audio_tstamp_nsec,
+ .driver_tstamp_sec = status64.audio_tstamp_sec,
+ .driver_tstamp_nsec = status64.audio_tstamp_nsec,
+ .audio_tstamp_accuracy = status64.audio_tstamp_accuracy,
+ };
+
+ if (copy_to_user(_status, &status32, sizeof(status32)))
+ return -EFAULT;
+
+ return 0;
+}
+
static int snd_pcm_channel_info(struct snd_pcm_substream *substream,
struct snd_pcm_channel_info * info)
{
return 0;
}
+struct snd_pcm_mmap_status32 {
+ s32 state;
+ s32 pad1;
+ u32 hw_ptr;
+ s32 tstamp_sec;
+ s32 tstamp_nsec;
+ s32 suspended_state;
+ s32 audio_tstamp_sec;
+ s32 audio_tstamp_nsec;
+} __attribute__((packed));
+
+struct snd_pcm_mmap_control32 {
+ u32 appl_ptr;
+ u32 avail_min;
+};
+
+struct snd_pcm_sync_ptr32 {
+ u32 flags;
+ union {
+ struct snd_pcm_mmap_status32 status;
+ unsigned char reserved[64];
+ } s;
+ union {
+ struct snd_pcm_mmap_control32 control;
+ unsigned char reserved[64];
+ } c;
+} __attribute__((packed));
+
+/* recalcuate the boundary within 32bit */
+static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime)
+{
+ snd_pcm_uframes_t boundary;
+
+ if (! runtime->buffer_size)
+ return 0;
+ boundary = runtime->buffer_size;
+ while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size)
+ boundary *= 2;
+ return boundary;
+}
+
+static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
+ struct snd_pcm_sync_ptr32 __user *src)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ volatile struct snd_pcm_mmap_status *status;
+ volatile struct snd_pcm_mmap_control *control;
+ u32 sflags;
+ struct snd_pcm_mmap_control scontrol;
+ struct snd_pcm_mmap_status sstatus;
+ snd_pcm_uframes_t boundary;
+ int err;
+
+ if (snd_BUG_ON(!runtime))
+ return -EINVAL;
+
+ if (get_user(sflags, &src->flags) ||
+ get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
+ get_user(scontrol.avail_min, &src->c.control.avail_min))
+ return -EFAULT;
+ if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
+ err = snd_pcm_hwsync(substream);
+ if (err < 0)
+ return err;
+ }
+ status = runtime->status;
+ control = runtime->control;
+ boundary = recalculate_boundary(runtime);
+ if (! boundary)
+ boundary = 0x7fffffff;
+ snd_pcm_stream_lock_irq(substream);
+ /* FIXME: we should consider the boundary for the sync from app */
+ if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
+ control->appl_ptr = scontrol.appl_ptr;
+ else
+ scontrol.appl_ptr = control->appl_ptr % boundary;
+ if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
+ control->avail_min = scontrol.avail_min;
+ else
+ scontrol.avail_min = control->avail_min;
+ sstatus.state = status->state;
+ sstatus.hw_ptr = status->hw_ptr % boundary;
+ sstatus.tstamp = status->tstamp;
+ sstatus.suspended_state = status->suspended_state;
+ sstatus.audio_tstamp = status->audio_tstamp;
+ snd_pcm_stream_unlock_irq(substream);
+ if (put_user(sstatus.state, &src->s.status.state) ||
+ put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
+ put_user(sstatus.tstamp.tv_sec, &src->s.status.tstamp_sec) ||
+ put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp_nsec) ||
+ put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
+ put_user(sstatus.audio_tstamp.tv_sec, &src->s.status.audio_tstamp_sec) ||
+ put_user(sstatus.audio_tstamp.tv_nsec, &src->s.status.audio_tstamp_nsec) ||
+ put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
+ put_user(scontrol.avail_min, &src->c.control.avail_min))
+ return -EFAULT;
+
+ return 0;
+}
+#define __SNDRV_PCM_IOCTL_SYNC_PTR32 _IOWR('A', 0x23, struct snd_pcm_sync_ptr32)
+
static int snd_pcm_tstamp(struct snd_pcm_substream *substream, int __user *_arg)
{
struct snd_pcm_runtime *runtime = substream->runtime;
return snd_pcm_hw_free(substream);
case SNDRV_PCM_IOCTL_SW_PARAMS:
return snd_pcm_sw_params_user(substream, arg);
- case SNDRV_PCM_IOCTL_STATUS:
- return snd_pcm_status_user(substream, arg, false);
- case SNDRV_PCM_IOCTL_STATUS_EXT:
- return snd_pcm_status_user(substream, arg, true);
+ case SNDRV_PCM_IOCTL_STATUS32:
+ return snd_pcm_status_user32(substream, arg, false);
+ case SNDRV_PCM_IOCTL_STATUS_EXT32:
+ return snd_pcm_status_user32(substream, arg, true);
+ case SNDRV_PCM_IOCTL_STATUS64:
+ return snd_pcm_status_user64(substream, arg, false);
+ case SNDRV_PCM_IOCTL_STATUS_EXT64:
+ return snd_pcm_status_user64(substream, arg, true);
case SNDRV_PCM_IOCTL_CHANNEL_INFO:
return snd_pcm_channel_info_user(substream, arg);
case SNDRV_PCM_IOCTL_PREPARE:
return -EFAULT;
return 0;
}
- case SNDRV_PCM_IOCTL_SYNC_PTR:
+ case __SNDRV_PCM_IOCTL_SYNC_PTR32:
+ return snd_pcm_ioctl_sync_ptr_compat(substream, arg);
+ case __SNDRV_PCM_IOCTL_SYNC_PTR64:
return snd_pcm_sync_ptr(substream, arg);
#ifdef CONFIG_SND_SUPPORT_OLD_API
case SNDRV_PCM_IOCTL_HW_REFINE_OLD:
static bool pcm_status_mmap_allowed(struct snd_pcm_file *pcm_file)
{
- if (pcm_file->no_compat_mmap)
- return false;
/* See pcm_control_mmap_allowed() below.
* Since older alsa-lib requires both status and control mmaps to be
* coupled, we have to disable the status mmap for old alsa-lib, too.
offset = area->vm_pgoff << PAGE_SHIFT;
switch (offset) {
- case SNDRV_PCM_MMAP_OFFSET_STATUS:
+ case SNDRV_PCM_MMAP_OFFSET_STATUS_OLD:
+ if (pcm_file->no_compat_mmap || !IS_ENABLED(CONFIG_64BIT))
+ return -ENXIO;
+ /* fallthrough */
+ case SNDRV_PCM_MMAP_OFFSET_STATUS_NEW:
if (!pcm_status_mmap_allowed(pcm_file))
return -ENXIO;
return snd_pcm_mmap_status(substream, file, area);
- case SNDRV_PCM_MMAP_OFFSET_CONTROL:
+ case SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD:
+ if (pcm_file->no_compat_mmap || !IS_ENABLED(CONFIG_64BIT))
+ return -ENXIO;
+ /* fallthrough */
+ case SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW:
if (!pcm_control_mmap_allowed(pcm_file))
return -ENXIO;
return snd_pcm_mmap_control(substream, file, area);
unsigned long offset = pgoff << PAGE_SHIFT;
switch (offset) {
- case SNDRV_PCM_MMAP_OFFSET_STATUS:
+ case SNDRV_PCM_MMAP_OFFSET_STATUS_NEW:
return (unsigned long)runtime->status;
- case SNDRV_PCM_MMAP_OFFSET_CONTROL:
+ case SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW:
return (unsigned long)runtime->control;
default:
return (unsigned long)runtime->dma_area + offset;
projects / platform / kernel / linux-starfive.git / blobdiff