diff options
Diffstat (limited to '')
-rw-r--r-- | sound/core/pcm_compat.c | 656 |
1 files changed, 656 insertions, 0 deletions
diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c new file mode 100644 index 000000000..c96483091 --- /dev/null +++ b/sound/core/pcm_compat.c @@ -0,0 +1,656 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * 32bit -> 64bit ioctl wrapper for PCM API + * Copyright (c) by Takashi Iwai <tiwai@suse.de> + */ + +/* This file included from pcm_native.c */ + +#include <linux/compat.h> +#include <linux/slab.h> + +static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream, + s32 __user *src) +{ + snd_pcm_sframes_t delay; + int err; + + err = snd_pcm_delay(substream, &delay); + if (err) + return err; + if (put_user(delay, src)) + return -EFAULT; + return 0; +} + +static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream, + u32 __user *src) +{ + snd_pcm_uframes_t frames; + int err; + + if (get_user(frames, src)) + return -EFAULT; + err = snd_pcm_rewind(substream, frames); + if (put_user(err, src)) + return -EFAULT; + return err < 0 ? err : 0; +} + +static int snd_pcm_ioctl_forward_compat(struct snd_pcm_substream *substream, + u32 __user *src) +{ + snd_pcm_uframes_t frames; + int err; + + if (get_user(frames, src)) + return -EFAULT; + err = snd_pcm_forward(substream, frames); + if (put_user(err, src)) + return -EFAULT; + return err < 0 ? err : 0; +} + +struct snd_pcm_hw_params32 { + u32 flags; + struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; /* this must be identical */ + struct snd_mask mres[5]; /* reserved masks */ + struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; + struct snd_interval ires[9]; /* reserved intervals */ + u32 rmask; + u32 cmask; + u32 info; + u32 msbits; + u32 rate_num; + u32 rate_den; + u32 fifo_size; + unsigned char reserved[64]; +}; + +struct snd_pcm_sw_params32 { + s32 tstamp_mode; + u32 period_step; + u32 sleep_min; + u32 avail_min; + u32 xfer_align; + u32 start_threshold; + u32 stop_threshold; + u32 silence_threshold; + u32 silence_size; + u32 boundary; + u32 proto; + u32 tstamp_type; + unsigned char reserved[56]; +}; + +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) || + get_user(params.tstamp_type, &src->tstamp_type) || + get_user(params.proto, &src->proto)) + 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; +} + +struct snd_pcm_channel_info32 { + u32 channel; + u32 offset; + u32 first; + u32 step; +}; + +static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream, + struct snd_pcm_channel_info32 __user *src) +{ + struct snd_pcm_channel_info info; + int err; + + if (get_user(info.channel, &src->channel) || + get_user(info.offset, &src->offset) || + get_user(info.first, &src->first) || + get_user(info.step, &src->step)) + return -EFAULT; + err = snd_pcm_channel_info(substream, &info); + if (err < 0) + return err; + if (put_user(info.channel, &src->channel) || + put_user(info.offset, &src->offset) || + put_user(info.first, &src->first) || + put_user(info.step, &src->step)) + return -EFAULT; + return err; +} + +#ifdef CONFIG_X86_X32_ABI +/* X32 ABI has the same struct as x86-64 for snd_pcm_channel_info */ +static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream, + struct snd_pcm_channel_info __user *src); +#define snd_pcm_ioctl_channel_info_x32(s, p) \ + snd_pcm_channel_info_user(s, p) +#endif /* CONFIG_X86_X32_ABI */ + +struct compat_snd_pcm_status64 { + snd_pcm_state_t state; + u8 rsvd[4]; /* alignment */ + s64 trigger_tstamp_sec; + s64 trigger_tstamp_nsec; + s64 tstamp_sec; + s64 tstamp_nsec; + u32 appl_ptr; + u32 hw_ptr; + s32 delay; + u32 avail; + u32 avail_max; + u32 overrange; + snd_pcm_state_t suspended_state; + u32 audio_tstamp_data; + s64 audio_tstamp_sec; + s64 audio_tstamp_nsec; + s64 driver_tstamp_sec; + s64 driver_tstamp_nsec; + u32 audio_tstamp_accuracy; + unsigned char reserved[52-4*sizeof(s64)]; +} __packed; + +static int snd_pcm_status_user_compat64(struct snd_pcm_substream *substream, + struct compat_snd_pcm_status64 __user *src, + bool ext) +{ + struct snd_pcm_status64 status; + struct compat_snd_pcm_status64 compat_status64; + int err; + + memset(&status, 0, sizeof(status)); + memset(&compat_status64, 0, sizeof(compat_status64)); + /* + * with extension, parameters are read/write, + * get audio_tstamp_data from user, + * ignore rest of status structure + */ + if (ext && get_user(status.audio_tstamp_data, + (u32 __user *)(&src->audio_tstamp_data))) + return -EFAULT; + err = snd_pcm_status64(substream, &status); + if (err < 0) + return err; + + if (clear_user(src, sizeof(*src))) + return -EFAULT; + + compat_status64 = (struct compat_snd_pcm_status64) { + .state = status.state, + .trigger_tstamp_sec = status.trigger_tstamp_sec, + .trigger_tstamp_nsec = status.trigger_tstamp_nsec, + .tstamp_sec = status.tstamp_sec, + .tstamp_nsec = status.tstamp_nsec, + .appl_ptr = status.appl_ptr, + .hw_ptr = status.hw_ptr, + .delay = status.delay, + .avail = status.avail, + .avail_max = status.avail_max, + .overrange = status.overrange, + .suspended_state = status.suspended_state, + .audio_tstamp_data = status.audio_tstamp_data, + .audio_tstamp_sec = status.audio_tstamp_sec, + .audio_tstamp_nsec = status.audio_tstamp_nsec, + .driver_tstamp_sec = status.audio_tstamp_sec, + .driver_tstamp_nsec = status.audio_tstamp_nsec, + .audio_tstamp_accuracy = status.audio_tstamp_accuracy, + }; + + if (copy_to_user(src, &compat_status64, sizeof(compat_status64))) + return -EFAULT; + + 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; + + runtime = substream->runtime; + if (!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); + if (err < 0) + goto error; + err = fixup_unreferenced_params(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; +} + + +/* + */ +struct snd_xferi32 { + s32 result; + u32 buf; + u32 frames; +}; + +static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream, + int dir, struct snd_xferi32 __user *data32) +{ + compat_caddr_t buf; + u32 frames; + int err; + + if (! substream->runtime) + return -ENOTTY; + if (substream->stream != dir) + return -EINVAL; + if (substream->runtime->state == SNDRV_PCM_STATE_OPEN) + return -EBADFD; + + if (get_user(buf, &data32->buf) || + get_user(frames, &data32->frames)) + return -EFAULT; + + if (dir == SNDRV_PCM_STREAM_PLAYBACK) + err = snd_pcm_lib_write(substream, compat_ptr(buf), frames); + else + err = snd_pcm_lib_read(substream, compat_ptr(buf), frames); + if (err < 0) + return err; + /* copy the result */ + if (put_user(err, &data32->result)) + return -EFAULT; + return 0; +} + + +/* snd_xfern needs remapping of bufs */ +struct snd_xfern32 { + s32 result; + u32 bufs; /* this is void **; */ + u32 frames; +}; + +/* + * xfern ioctl nees to copy (up to) 128 pointers on stack. + * although we may pass the copied pointers through f_op->ioctl, but the ioctl + * handler there expands again the same 128 pointers on stack, so it is better + * to handle the function (calling pcm_readv/writev) directly in this handler. + */ +static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream, + int dir, struct snd_xfern32 __user *data32) +{ + compat_caddr_t buf; + compat_caddr_t __user *bufptr; + u32 frames; + void __user **bufs; + int err, ch, i; + + if (! substream->runtime) + return -ENOTTY; + if (substream->stream != dir) + return -EINVAL; + if (substream->runtime->state == SNDRV_PCM_STATE_OPEN) + return -EBADFD; + + ch = substream->runtime->channels; + if (ch > 128) + return -EINVAL; + if (get_user(buf, &data32->bufs) || + get_user(frames, &data32->frames)) + return -EFAULT; + bufptr = compat_ptr(buf); + bufs = kmalloc_array(ch, sizeof(void __user *), GFP_KERNEL); + if (bufs == NULL) + return -ENOMEM; + for (i = 0; i < ch; i++) { + u32 ptr; + if (get_user(ptr, bufptr)) { + kfree(bufs); + return -EFAULT; + } + bufs[i] = compat_ptr(ptr); + bufptr++; + } + if (dir == SNDRV_PCM_STREAM_PLAYBACK) + err = snd_pcm_lib_writev(substream, bufs, frames); + else + err = snd_pcm_lib_readv(substream, bufs, frames); + if (err >= 0) { + if (put_user(err, &data32->result)) + err = -EFAULT; + } + kfree(bufs); + return err; +} + +#ifdef CONFIG_X86_X32_ABI +/* X32 ABI has 64bit timespec and 64bit alignment */ +struct snd_pcm_mmap_status_x32 { + snd_pcm_state_t state; + s32 pad1; + u32 hw_ptr; + u32 pad2; /* alignment */ + s64 tstamp_sec; + s64 tstamp_nsec; + snd_pcm_state_t suspended_state; + s32 pad3; + s64 audio_tstamp_sec; + s64 audio_tstamp_nsec; +} __packed; + +struct snd_pcm_mmap_control_x32 { + u32 appl_ptr; + u32 avail_min; +}; + +struct snd_pcm_sync_ptr_x32 { + u32 flags; + u32 rsvd; /* alignment */ + union { + struct snd_pcm_mmap_status_x32 status; + unsigned char reserved[64]; + } s; + union { + struct snd_pcm_mmap_control_x32 control; + unsigned char reserved[64]; + } c; +} __packed; + +static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream, + struct snd_pcm_sync_ptr_x32 __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 (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) + snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); + 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; +} +#endif /* CONFIG_X86_X32_ABI */ + +#ifdef __BIG_ENDIAN +typedef char __pad_before_u32[4]; +typedef char __pad_after_u32[0]; +#else +typedef char __pad_before_u32[0]; +typedef char __pad_after_u32[4]; +#endif + +/* PCM 2.0.15 API definition had a bug in mmap control; it puts the avail_min + * at the wrong offset due to a typo in padding type. + * The bug hits only 32bit. + * A workaround for incorrect read/write is needed only in 32bit compat mode. + */ +struct __snd_pcm_mmap_control64_buggy { + __pad_before_u32 __pad1; + __u32 appl_ptr; + __pad_before_u32 __pad2; /* SiC! here is the bug */ + __pad_before_u32 __pad3; + __u32 avail_min; + __pad_after_uframe __pad4; +}; + +static int snd_pcm_ioctl_sync_ptr_buggy(struct snd_pcm_substream *substream, + struct snd_pcm_sync_ptr __user *_sync_ptr) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_pcm_sync_ptr sync_ptr; + struct __snd_pcm_mmap_control64_buggy *sync_cp; + volatile struct snd_pcm_mmap_status *status; + volatile struct snd_pcm_mmap_control *control; + int err; + + memset(&sync_ptr, 0, sizeof(sync_ptr)); + sync_cp = (struct __snd_pcm_mmap_control64_buggy *)&sync_ptr.c.control; + if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags))) + return -EFAULT; + if (copy_from_user(sync_cp, &(_sync_ptr->c.control), sizeof(*sync_cp))) + return -EFAULT; + status = runtime->status; + control = runtime->control; + if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) { + err = snd_pcm_hwsync(substream); + if (err < 0) + return err; + } + snd_pcm_stream_lock_irq(substream); + if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) { + err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr); + if (err < 0) { + snd_pcm_stream_unlock_irq(substream); + return err; + } + } else { + sync_cp->appl_ptr = control->appl_ptr; + } + if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) + control->avail_min = sync_cp->avail_min; + else + sync_cp->avail_min = control->avail_min; + sync_ptr.s.status.state = status->state; + sync_ptr.s.status.hw_ptr = status->hw_ptr; + sync_ptr.s.status.tstamp = status->tstamp; + sync_ptr.s.status.suspended_state = status->suspended_state; + sync_ptr.s.status.audio_tstamp = status->audio_tstamp; + snd_pcm_stream_unlock_irq(substream); + if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) + snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); + if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr))) + return -EFAULT; + return 0; +} + +/* + */ +enum { + SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32), + SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32), + SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32), + SNDRV_PCM_IOCTL_STATUS_COMPAT32 = _IOR('A', 0x20, struct snd_pcm_status32), + SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32 = _IOWR('A', 0x24, struct snd_pcm_status32), + SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32), + SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32), + SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32), + SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32), + SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32), + SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32), + SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), + SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), + SNDRV_PCM_IOCTL_STATUS_COMPAT64 = _IOR('A', 0x20, struct compat_snd_pcm_status64), + SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64 = _IOWR('A', 0x24, struct compat_snd_pcm_status64), +#ifdef CONFIG_X86_X32_ABI + SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info), + SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32), +#endif /* CONFIG_X86_X32_ABI */ +}; + +static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) +{ + struct snd_pcm_file *pcm_file; + struct snd_pcm_substream *substream; + void __user *argp = compat_ptr(arg); + + pcm_file = file->private_data; + if (! pcm_file) + return -ENOTTY; + substream = pcm_file->substream; + if (! substream) + return -ENOTTY; + + /* + * When PCM is used on 32bit mode, we need to disable + * mmap of the old PCM status/control records because + * of the size incompatibility. + */ + pcm_file->no_compat_mmap = 1; + + switch (cmd) { + case SNDRV_PCM_IOCTL_PVERSION: + case SNDRV_PCM_IOCTL_INFO: + case SNDRV_PCM_IOCTL_TSTAMP: + case SNDRV_PCM_IOCTL_TTSTAMP: + case SNDRV_PCM_IOCTL_USER_PVERSION: + case SNDRV_PCM_IOCTL_HWSYNC: + case SNDRV_PCM_IOCTL_PREPARE: + case SNDRV_PCM_IOCTL_RESET: + case SNDRV_PCM_IOCTL_START: + case SNDRV_PCM_IOCTL_DROP: + case SNDRV_PCM_IOCTL_DRAIN: + case SNDRV_PCM_IOCTL_PAUSE: + case SNDRV_PCM_IOCTL_HW_FREE: + case SNDRV_PCM_IOCTL_RESUME: + case SNDRV_PCM_IOCTL_XRUN: + case SNDRV_PCM_IOCTL_LINK: + case SNDRV_PCM_IOCTL_UNLINK: + case __SNDRV_PCM_IOCTL_SYNC_PTR32: + return snd_pcm_common_ioctl(file, substream, cmd, argp); + case __SNDRV_PCM_IOCTL_SYNC_PTR64: +#ifdef CONFIG_X86_X32_ABI + if (in_x32_syscall()) + return snd_pcm_ioctl_sync_ptr_x32(substream, argp); +#endif /* CONFIG_X86_X32_ABI */ + return snd_pcm_ioctl_sync_ptr_buggy(substream, argp); + case SNDRV_PCM_IOCTL_HW_REFINE32: + return snd_pcm_ioctl_hw_params_compat(substream, 1, argp); + case SNDRV_PCM_IOCTL_HW_PARAMS32: + return snd_pcm_ioctl_hw_params_compat(substream, 0, argp); + case SNDRV_PCM_IOCTL_SW_PARAMS32: + return snd_pcm_ioctl_sw_params_compat(substream, argp); + case SNDRV_PCM_IOCTL_STATUS_COMPAT32: + return snd_pcm_status_user32(substream, argp, false); + case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32: + return snd_pcm_status_user32(substream, argp, true); + case SNDRV_PCM_IOCTL_CHANNEL_INFO32: + return snd_pcm_ioctl_channel_info_compat(substream, argp); + case SNDRV_PCM_IOCTL_WRITEI_FRAMES32: + return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); + case SNDRV_PCM_IOCTL_READI_FRAMES32: + return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); + case SNDRV_PCM_IOCTL_WRITEN_FRAMES32: + return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); + case SNDRV_PCM_IOCTL_READN_FRAMES32: + return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); + case SNDRV_PCM_IOCTL_DELAY32: + return snd_pcm_ioctl_delay_compat(substream, argp); + case SNDRV_PCM_IOCTL_REWIND32: + return snd_pcm_ioctl_rewind_compat(substream, argp); + case SNDRV_PCM_IOCTL_FORWARD32: + return snd_pcm_ioctl_forward_compat(substream, argp); + case SNDRV_PCM_IOCTL_STATUS_COMPAT64: + return snd_pcm_status_user_compat64(substream, argp, false); + case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64: + return snd_pcm_status_user_compat64(substream, argp, true); +#ifdef CONFIG_X86_X32_ABI + case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32: + return snd_pcm_ioctl_channel_info_x32(substream, argp); +#endif /* CONFIG_X86_X32_ABI */ + } + + return -ENOIOCTLCMD; +} |