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652 lines
19 KiB
652 lines
19 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* 32bit -> 64bit ioctl wrapper for PCM API |
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* Copyright (c) by Takashi Iwai <[email protected]> |
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*/ |
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|
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/* This file included from pcm_native.c */ |
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|
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#include <linux/compat.h> |
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#include <linux/slab.h> |
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static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream, |
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s32 __user *src) |
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{ |
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snd_pcm_sframes_t delay; |
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int err; |
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err = snd_pcm_delay(substream, &delay); |
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if (err) |
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return err; |
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if (put_user(delay, src)) |
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return -EFAULT; |
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return 0; |
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} |
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static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream, |
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u32 __user *src) |
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{ |
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snd_pcm_uframes_t frames; |
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int err; |
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if (get_user(frames, src)) |
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return -EFAULT; |
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err = snd_pcm_rewind(substream, frames); |
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if (put_user(err, src)) |
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return -EFAULT; |
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return err < 0 ? err : 0; |
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} |
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static int snd_pcm_ioctl_forward_compat(struct snd_pcm_substream *substream, |
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u32 __user *src) |
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{ |
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snd_pcm_uframes_t frames; |
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int err; |
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if (get_user(frames, src)) |
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return -EFAULT; |
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err = snd_pcm_forward(substream, frames); |
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if (put_user(err, src)) |
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return -EFAULT; |
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return err < 0 ? err : 0; |
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} |
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struct snd_pcm_hw_params32 { |
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u32 flags; |
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struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; /* this must be identical */ |
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struct snd_mask mres[5]; /* reserved masks */ |
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struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; |
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struct snd_interval ires[9]; /* reserved intervals */ |
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u32 rmask; |
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u32 cmask; |
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u32 info; |
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u32 msbits; |
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u32 rate_num; |
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u32 rate_den; |
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u32 fifo_size; |
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unsigned char reserved[64]; |
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}; |
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struct snd_pcm_sw_params32 { |
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s32 tstamp_mode; |
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u32 period_step; |
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u32 sleep_min; |
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u32 avail_min; |
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u32 xfer_align; |
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u32 start_threshold; |
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u32 stop_threshold; |
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u32 silence_threshold; |
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u32 silence_size; |
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u32 boundary; |
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u32 proto; |
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u32 tstamp_type; |
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unsigned char reserved[56]; |
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}; |
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static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream, |
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struct snd_pcm_sw_params32 __user *src) |
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{ |
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struct snd_pcm_sw_params params; |
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snd_pcm_uframes_t boundary; |
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int err; |
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memset(¶ms, 0, sizeof(params)); |
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if (get_user(params.tstamp_mode, &src->tstamp_mode) || |
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get_user(params.period_step, &src->period_step) || |
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get_user(params.sleep_min, &src->sleep_min) || |
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get_user(params.avail_min, &src->avail_min) || |
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get_user(params.xfer_align, &src->xfer_align) || |
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get_user(params.start_threshold, &src->start_threshold) || |
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get_user(params.stop_threshold, &src->stop_threshold) || |
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get_user(params.silence_threshold, &src->silence_threshold) || |
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get_user(params.silence_size, &src->silence_size) || |
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get_user(params.tstamp_type, &src->tstamp_type) || |
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get_user(params.proto, &src->proto)) |
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return -EFAULT; |
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/* |
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* Check silent_size parameter. Since we have 64bit boundary, |
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* silence_size must be compared with the 32bit boundary. |
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*/ |
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boundary = recalculate_boundary(substream->runtime); |
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if (boundary && params.silence_size >= boundary) |
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params.silence_size = substream->runtime->boundary; |
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err = snd_pcm_sw_params(substream, ¶ms); |
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if (err < 0) |
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return err; |
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if (boundary && put_user(boundary, &src->boundary)) |
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return -EFAULT; |
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return err; |
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} |
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struct snd_pcm_channel_info32 { |
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u32 channel; |
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u32 offset; |
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u32 first; |
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u32 step; |
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}; |
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static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream, |
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struct snd_pcm_channel_info32 __user *src) |
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{ |
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struct snd_pcm_channel_info info; |
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int err; |
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if (get_user(info.channel, &src->channel) || |
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get_user(info.offset, &src->offset) || |
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get_user(info.first, &src->first) || |
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get_user(info.step, &src->step)) |
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return -EFAULT; |
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err = snd_pcm_channel_info(substream, &info); |
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if (err < 0) |
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return err; |
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if (put_user(info.channel, &src->channel) || |
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put_user(info.offset, &src->offset) || |
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put_user(info.first, &src->first) || |
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put_user(info.step, &src->step)) |
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return -EFAULT; |
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return err; |
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} |
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#ifdef CONFIG_X86_X32_ABI |
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/* X32 ABI has the same struct as x86-64 for snd_pcm_channel_info */ |
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static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream, |
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struct snd_pcm_channel_info __user *src); |
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#define snd_pcm_ioctl_channel_info_x32(s, p) \ |
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snd_pcm_channel_info_user(s, p) |
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#endif /* CONFIG_X86_X32_ABI */ |
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struct compat_snd_pcm_status64 { |
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snd_pcm_state_t state; |
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u8 rsvd[4]; /* alignment */ |
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s64 trigger_tstamp_sec; |
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s64 trigger_tstamp_nsec; |
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s64 tstamp_sec; |
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s64 tstamp_nsec; |
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u32 appl_ptr; |
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u32 hw_ptr; |
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s32 delay; |
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u32 avail; |
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u32 avail_max; |
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u32 overrange; |
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snd_pcm_state_t suspended_state; |
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u32 audio_tstamp_data; |
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s64 audio_tstamp_sec; |
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s64 audio_tstamp_nsec; |
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s64 driver_tstamp_sec; |
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s64 driver_tstamp_nsec; |
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u32 audio_tstamp_accuracy; |
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unsigned char reserved[52-4*sizeof(s64)]; |
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} __packed; |
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static int snd_pcm_status_user_compat64(struct snd_pcm_substream *substream, |
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struct compat_snd_pcm_status64 __user *src, |
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bool ext) |
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{ |
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struct snd_pcm_status64 status; |
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struct compat_snd_pcm_status64 compat_status64; |
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int err; |
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memset(&status, 0, sizeof(status)); |
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memset(&compat_status64, 0, sizeof(compat_status64)); |
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/* |
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* with extension, parameters are read/write, |
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* get audio_tstamp_data from user, |
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* ignore rest of status structure |
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*/ |
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if (ext && get_user(status.audio_tstamp_data, |
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(u32 __user *)(&src->audio_tstamp_data))) |
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return -EFAULT; |
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err = snd_pcm_status64(substream, &status); |
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if (err < 0) |
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return err; |
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if (clear_user(src, sizeof(*src))) |
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return -EFAULT; |
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compat_status64 = (struct compat_snd_pcm_status64) { |
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.state = status.state, |
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.trigger_tstamp_sec = status.trigger_tstamp_sec, |
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.trigger_tstamp_nsec = status.trigger_tstamp_nsec, |
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.tstamp_sec = status.tstamp_sec, |
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.tstamp_nsec = status.tstamp_nsec, |
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.appl_ptr = status.appl_ptr, |
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.hw_ptr = status.hw_ptr, |
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.delay = status.delay, |
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.avail = status.avail, |
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.avail_max = status.avail_max, |
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.overrange = status.overrange, |
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.suspended_state = status.suspended_state, |
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.audio_tstamp_data = status.audio_tstamp_data, |
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.audio_tstamp_sec = status.audio_tstamp_sec, |
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.audio_tstamp_nsec = status.audio_tstamp_nsec, |
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.driver_tstamp_sec = status.audio_tstamp_sec, |
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.driver_tstamp_nsec = status.audio_tstamp_nsec, |
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.audio_tstamp_accuracy = status.audio_tstamp_accuracy, |
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}; |
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if (copy_to_user(src, &compat_status64, sizeof(compat_status64))) |
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return -EFAULT; |
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return err; |
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} |
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/* both for HW_PARAMS and HW_REFINE */ |
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static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream, |
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int refine, |
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struct snd_pcm_hw_params32 __user *data32) |
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{ |
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struct snd_pcm_hw_params *data; |
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struct snd_pcm_runtime *runtime; |
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int err; |
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runtime = substream->runtime; |
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if (!runtime) |
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return -ENOTTY; |
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data = kmalloc(sizeof(*data), GFP_KERNEL); |
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if (!data) |
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return -ENOMEM; |
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/* only fifo_size (RO from userspace) is different, so just copy all */ |
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if (copy_from_user(data, data32, sizeof(*data32))) { |
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err = -EFAULT; |
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goto error; |
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} |
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if (refine) |
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err = snd_pcm_hw_refine(substream, data); |
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else |
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err = snd_pcm_hw_params(substream, data); |
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if (err < 0) |
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goto error; |
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if (copy_to_user(data32, data, sizeof(*data32)) || |
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put_user(data->fifo_size, &data32->fifo_size)) { |
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err = -EFAULT; |
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goto error; |
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} |
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if (! refine) { |
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unsigned int new_boundary = recalculate_boundary(runtime); |
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if (new_boundary) |
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runtime->boundary = new_boundary; |
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} |
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error: |
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kfree(data); |
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return err; |
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} |
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/* |
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*/ |
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struct snd_xferi32 { |
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s32 result; |
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u32 buf; |
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u32 frames; |
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}; |
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static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream, |
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int dir, struct snd_xferi32 __user *data32) |
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{ |
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compat_caddr_t buf; |
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u32 frames; |
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int err; |
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if (! substream->runtime) |
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return -ENOTTY; |
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if (substream->stream != dir) |
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return -EINVAL; |
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if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) |
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return -EBADFD; |
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if (get_user(buf, &data32->buf) || |
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get_user(frames, &data32->frames)) |
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return -EFAULT; |
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if (dir == SNDRV_PCM_STREAM_PLAYBACK) |
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err = snd_pcm_lib_write(substream, compat_ptr(buf), frames); |
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else |
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err = snd_pcm_lib_read(substream, compat_ptr(buf), frames); |
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if (err < 0) |
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return err; |
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/* copy the result */ |
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if (put_user(err, &data32->result)) |
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return -EFAULT; |
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return 0; |
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} |
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/* snd_xfern needs remapping of bufs */ |
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struct snd_xfern32 { |
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s32 result; |
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u32 bufs; /* this is void **; */ |
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u32 frames; |
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}; |
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/* |
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* xfern ioctl nees to copy (up to) 128 pointers on stack. |
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* although we may pass the copied pointers through f_op->ioctl, but the ioctl |
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* handler there expands again the same 128 pointers on stack, so it is better |
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* to handle the function (calling pcm_readv/writev) directly in this handler. |
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*/ |
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static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream, |
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int dir, struct snd_xfern32 __user *data32) |
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{ |
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compat_caddr_t buf; |
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compat_caddr_t __user *bufptr; |
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u32 frames; |
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void __user **bufs; |
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int err, ch, i; |
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if (! substream->runtime) |
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return -ENOTTY; |
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if (substream->stream != dir) |
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return -EINVAL; |
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if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) |
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return -EBADFD; |
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ch = substream->runtime->channels; |
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if (ch > 128) |
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return -EINVAL; |
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if (get_user(buf, &data32->bufs) || |
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get_user(frames, &data32->frames)) |
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return -EFAULT; |
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bufptr = compat_ptr(buf); |
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bufs = kmalloc_array(ch, sizeof(void __user *), GFP_KERNEL); |
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if (bufs == NULL) |
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return -ENOMEM; |
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for (i = 0; i < ch; i++) { |
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u32 ptr; |
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if (get_user(ptr, bufptr)) { |
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kfree(bufs); |
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return -EFAULT; |
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} |
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bufs[i] = compat_ptr(ptr); |
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bufptr++; |
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} |
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if (dir == SNDRV_PCM_STREAM_PLAYBACK) |
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err = snd_pcm_lib_writev(substream, bufs, frames); |
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else |
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err = snd_pcm_lib_readv(substream, bufs, frames); |
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if (err >= 0) { |
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if (put_user(err, &data32->result)) |
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err = -EFAULT; |
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} |
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kfree(bufs); |
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return err; |
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} |
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#ifdef CONFIG_X86_X32_ABI |
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/* X32 ABI has 64bit timespec and 64bit alignment */ |
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struct snd_pcm_mmap_status_x32 { |
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snd_pcm_state_t state; |
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s32 pad1; |
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u32 hw_ptr; |
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u32 pad2; /* alignment */ |
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s64 tstamp_sec; |
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s64 tstamp_nsec; |
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snd_pcm_state_t suspended_state; |
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s32 pad3; |
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s64 audio_tstamp_sec; |
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s64 audio_tstamp_nsec; |
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} __packed; |
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struct snd_pcm_mmap_control_x32 { |
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u32 appl_ptr; |
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u32 avail_min; |
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}; |
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struct snd_pcm_sync_ptr_x32 { |
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u32 flags; |
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u32 rsvd; /* alignment */ |
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union { |
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struct snd_pcm_mmap_status_x32 status; |
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unsigned char reserved[64]; |
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} s; |
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union { |
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struct snd_pcm_mmap_control_x32 control; |
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unsigned char reserved[64]; |
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} c; |
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} __packed; |
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static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream, |
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struct snd_pcm_sync_ptr_x32 __user *src) |
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{ |
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struct snd_pcm_runtime *runtime = substream->runtime; |
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volatile struct snd_pcm_mmap_status *status; |
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volatile struct snd_pcm_mmap_control *control; |
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u32 sflags; |
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struct snd_pcm_mmap_control scontrol; |
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struct snd_pcm_mmap_status sstatus; |
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snd_pcm_uframes_t boundary; |
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int err; |
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if (snd_BUG_ON(!runtime)) |
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return -EINVAL; |
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if (get_user(sflags, &src->flags) || |
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get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || |
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get_user(scontrol.avail_min, &src->c.control.avail_min)) |
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return -EFAULT; |
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if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { |
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err = snd_pcm_hwsync(substream); |
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if (err < 0) |
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return err; |
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} |
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status = runtime->status; |
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control = runtime->control; |
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boundary = recalculate_boundary(runtime); |
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if (!boundary) |
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boundary = 0x7fffffff; |
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snd_pcm_stream_lock_irq(substream); |
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/* FIXME: we should consider the boundary for the sync from app */ |
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if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) |
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control->appl_ptr = scontrol.appl_ptr; |
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else |
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scontrol.appl_ptr = control->appl_ptr % boundary; |
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if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) |
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control->avail_min = scontrol.avail_min; |
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else |
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scontrol.avail_min = control->avail_min; |
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sstatus.state = status->state; |
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sstatus.hw_ptr = status->hw_ptr % boundary; |
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sstatus.tstamp = status->tstamp; |
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sstatus.suspended_state = status->suspended_state; |
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sstatus.audio_tstamp = status->audio_tstamp; |
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snd_pcm_stream_unlock_irq(substream); |
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if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) |
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snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); |
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if (put_user(sstatus.state, &src->s.status.state) || |
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put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) || |
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put_user(sstatus.tstamp.tv_sec, &src->s.status.tstamp_sec) || |
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put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp_nsec) || |
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put_user(sstatus.suspended_state, &src->s.status.suspended_state) || |
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put_user(sstatus.audio_tstamp.tv_sec, &src->s.status.audio_tstamp_sec) || |
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put_user(sstatus.audio_tstamp.tv_nsec, &src->s.status.audio_tstamp_nsec) || |
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put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || |
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put_user(scontrol.avail_min, &src->c.control.avail_min)) |
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return -EFAULT; |
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|
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return 0; |
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} |
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#endif /* CONFIG_X86_X32_ABI */ |
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|
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#ifdef __BIG_ENDIAN |
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typedef char __pad_before_u32[4]; |
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typedef char __pad_after_u32[0]; |
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#else |
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typedef char __pad_before_u32[0]; |
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typedef char __pad_after_u32[4]; |
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#endif |
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|
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/* PCM 2.0.15 API definition had a bug in mmap control; it puts the avail_min |
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* at the wrong offset due to a typo in padding type. |
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* The bug hits only 32bit. |
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* A workaround for incorrect read/write is needed only in 32bit compat mode. |
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*/ |
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struct __snd_pcm_mmap_control64_buggy { |
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__pad_before_u32 __pad1; |
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__u32 appl_ptr; |
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__pad_before_u32 __pad2; /* SiC! here is the bug */ |
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__pad_before_u32 __pad3; |
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__u32 avail_min; |
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__pad_after_uframe __pad4; |
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}; |
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static int snd_pcm_ioctl_sync_ptr_buggy(struct snd_pcm_substream *substream, |
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struct snd_pcm_sync_ptr __user *_sync_ptr) |
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{ |
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struct snd_pcm_runtime *runtime = substream->runtime; |
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struct snd_pcm_sync_ptr sync_ptr; |
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struct __snd_pcm_mmap_control64_buggy *sync_cp; |
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volatile struct snd_pcm_mmap_status *status; |
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volatile struct snd_pcm_mmap_control *control; |
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int err; |
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memset(&sync_ptr, 0, sizeof(sync_ptr)); |
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sync_cp = (struct __snd_pcm_mmap_control64_buggy *)&sync_ptr.c.control; |
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if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags))) |
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return -EFAULT; |
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if (copy_from_user(sync_cp, &(_sync_ptr->c.control), sizeof(*sync_cp))) |
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return -EFAULT; |
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status = runtime->status; |
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control = runtime->control; |
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if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) { |
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err = snd_pcm_hwsync(substream); |
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if (err < 0) |
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return err; |
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} |
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snd_pcm_stream_lock_irq(substream); |
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if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) { |
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err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr); |
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if (err < 0) { |
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snd_pcm_stream_unlock_irq(substream); |
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return err; |
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} |
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} else { |
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sync_cp->appl_ptr = control->appl_ptr; |
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} |
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if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) |
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control->avail_min = sync_cp->avail_min; |
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else |
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sync_cp->avail_min = control->avail_min; |
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sync_ptr.s.status.state = status->state; |
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sync_ptr.s.status.hw_ptr = status->hw_ptr; |
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sync_ptr.s.status.tstamp = status->tstamp; |
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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; |
|
}
|
|
|