static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream,
struct snd_pcm_sw_params32 __user *src)
{
struct snd_pcm_sw_params params;
snd_pcm_uframes_t boundary;
int err;
memset(¶ms, 0, sizeof(params));
if (get_user(params.tstamp_mode, &src->tstamp_mode) ||
get_user(params.period_step, &src->period_step) ||
get_user(params.sleep_min, &src->sleep_min) ||
get_user(params.avail_min, &src->avail_min) ||
get_user(params.xfer_align, &src->xfer_align) ||
get_user(params.start_threshold, &src->start_threshold) ||
get_user(params.stop_threshold, &src->stop_threshold) ||
get_user(params.silence_threshold, &src->silence_threshold) ||
get_user(params.silence_size, &src->silence_size))
return -EFAULT;
/*
* Check silent_size parameter. Since we have 64bit boundary,
* silence_size must be compared with the 32bit boundary.
*/
boundary = recalculate_boundary(substream->runtime);
if (boundary && params.silence_size >= boundary)
params.silence_size = substream->runtime->boundary;
err = snd_pcm_sw_params(substream, ¶ms);
if (err < 0)
return err;
if (boundary && put_user(boundary, &src->boundary))
return -EFAULT;
return err;
}
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) ||
compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
compat_put_timespec(&sstatus.audio_tstamp,
&src->s.status.audio_tstamp) ||
put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
put_user(scontrol.avail_min, &src->c.control.avail_min))
return -EFAULT;
return 0;
}
/* both for HW_PARAMS and HW_REFINE */
static int _snd_ioctl32_pcm_hw_params(unsigned int fd, unsigned int cmd, unsigned long arg, struct file *file, unsigned int native_ctl)
{
struct sndrv_pcm_hw_params32 __user *data32;
struct sndrv_pcm_hw_params *data;
snd_pcm_file_t *pcm_file;
snd_pcm_substream_t *substream;
snd_pcm_runtime_t *runtime;
int err;
if (sanity_check_pcm(file))
return -ENOTTY;
if (! (pcm_file = file->private_data))
return -ENOTTY;
if (! (substream = pcm_file->substream))
return -ENOTTY;
if (! (runtime = substream->runtime))
return -ENOTTY;
data32 = compat_ptr(arg);
data = kmalloc(sizeof(*data), GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
if (copy_from_user(data, data32, sizeof(*data32))) {
err = -EFAULT;
goto error;
}
if (native_ctl == SNDRV_PCM_IOCTL_HW_REFINE)
err = snd_pcm_hw_refine(substream, data);
else
err = snd_pcm_hw_params(substream, data);
if (err < 0)
goto error;
if (copy_to_user(data32, data, sizeof(*data32)) ||
__put_user((u32)data->fifo_size, &data32->fifo_size)) {
err = -EFAULT;
goto error;
}
if (native_ctl == SNDRV_PCM_IOCTL_HW_PARAMS)
recalculate_boundary(runtime);
error:
kfree(data);
return err;
}
/* both for HW_PARAMS and HW_REFINE */
static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream,
int refine,
struct snd_pcm_hw_params32 __user *data32)
{
struct snd_pcm_hw_params *data;
struct snd_pcm_runtime *runtime;
int err;
if (! (runtime = substream->runtime))
return -ENOTTY;
data = kmalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
/* only fifo_size (RO from userspace) is different, so just copy all */
if (copy_from_user(data, data32, sizeof(*data32))) {
err = -EFAULT;
goto error;
}
if (refine)
err = snd_pcm_hw_refine(substream, data);
else
err = snd_pcm_hw_params(substream, data);
if (err < 0)
goto error;
if (copy_to_user(data32, data, sizeof(*data32)) ||
put_user(data->fifo_size, &data32->fifo_size)) {
err = -EFAULT;
goto error;
}
if (! refine) {
unsigned int new_boundary = recalculate_boundary(runtime);
if (new_boundary)
runtime->boundary = new_boundary;
}
error:
kfree(data);
return err;
}
static inline int _snd_ioctl32_pcm_hw_params(unsigned int fd, unsigned int cmd, unsigned long arg, struct file *file, unsigned int native_ctl)
{
struct sndrv_pcm_hw_params32 *data32;
struct sndrv_pcm_hw_params *data;
mm_segment_t oldseg;
int err;
data32 = kmalloc(sizeof(*data32), GFP_KERNEL);
data = kmalloc(sizeof(*data), GFP_KERNEL);
if (data32 == NULL || data == NULL) {
err = -ENOMEM;
goto __end;
}
if (copy_from_user(data32, (void __user *)arg, sizeof(*data32))) {
err = -EFAULT;
goto __end;
}
memset(data, 0, sizeof(*data));
convert_from_32(pcm_hw_params, data, data32);
oldseg = get_fs();
set_fs(KERNEL_DS);
err = file->f_op->ioctl(file->f_dentry->d_inode, file, native_ctl, (unsigned long)data);
set_fs(oldseg);
if (err < 0)
goto __end;
err = 0;
convert_to_32(pcm_hw_params, data32, data);
if (copy_to_user((void __user *)arg, data32, sizeof(*data32)))
err = -EFAULT;
else
recalculate_boundary(file);
__end:
if (data)
kfree(data);
if (data32)
kfree(data32);
return err;
}
/* FIXME: need to check whether fop->ioctl is sane */
if (! (pcm_file = file->private_data))
return 0x7fffffffUL;
if (! (substream = pcm_file->substream))
return 0x7fffffffUL;
if (! (runtime = substream->runtime))
return 0x7fffffffUL;
boundary = runtime->buffer_size;
if (boundary == 0)
return 0x7fffffffUL;
while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size)
boundary *= 2;
return (u32)boundary;
}
DEFINE_ALSA_IOCTL1(pcm_sw_params, data.boundary = recalculate_boundary(file, data.boundary), data32.boundary = recalculate_boundary(file, data.boundary));
static inline int _snd_ioctl32_pcm_hw_params(unsigned int fd, unsigned int cmd, unsigned long arg, struct file *file, unsigned int native_ctl)
{
struct sndrv_pcm_hw_params32 *data32;
struct snd_pcm_hw_params *data;
mm_segment_t oldseg;
int err;
data32 = kmalloc(sizeof(*data32), GFP_KERNEL);
data = kmalloc(sizeof(*data), GFP_KERNEL);
if (data32 == NULL || data == NULL) {
err = -ENOMEM;
goto __end;
}
if (copy_from_user(data32, (void __user *)arg, sizeof(*data32))) {
