diff options
Diffstat (limited to 'sound/oss/emu10k1/audio.c')
| -rw-r--r-- | sound/oss/emu10k1/audio.c | 1595 |
1 files changed, 0 insertions, 1595 deletions
diff --git a/sound/oss/emu10k1/audio.c b/sound/oss/emu10k1/audio.c deleted file mode 100644 index e75ea21..0000000 --- a/sound/oss/emu10k1/audio.c +++ /dev/null @@ -1,1595 +0,0 @@ -/* - ********************************************************************** - * audio.c -- /dev/dsp interface for emu10k1 driver - * Copyright 1999, 2000 Creative Labs, Inc. - * - ********************************************************************** - * - * Date Author Summary of changes - * ---- ------ ------------------ - * October 20, 1999 Bertrand Lee base code release - * November 2, 1999 Alan Cox cleaned up types/leaks - * - ********************************************************************** - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, - * USA. - * - ********************************************************************** - */ - -#include <linux/module.h> -#include <linux/poll.h> -#include <linux/slab.h> -#include <linux/bitops.h> -#include <asm/io.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/smp_lock.h> - -#include "hwaccess.h" -#include "cardwo.h" -#include "cardwi.h" -#include "recmgr.h" -#include "irqmgr.h" -#include "audio.h" -#include "8010.h" - -static void calculate_ofrag(struct woinst *); -static void calculate_ifrag(struct wiinst *); - -static void emu10k1_waveout_bh(unsigned long refdata); -static void emu10k1_wavein_bh(unsigned long refdata); - -/* Audio file operations */ -static ssize_t emu10k1_audio_read(struct file *file, char __user *buffer, size_t count, loff_t * ppos) -{ - struct emu10k1_wavedevice *wave_dev = (struct emu10k1_wavedevice *) file->private_data; - struct wiinst *wiinst = wave_dev->wiinst; - ssize_t ret = 0; - unsigned long flags; - - DPD(3, "emu10k1_audio_read(), buffer=%p, count=%d\n", buffer, (u32) count); - - if (!access_ok(VERIFY_WRITE, buffer, count)) - return -EFAULT; - - spin_lock_irqsave(&wiinst->lock, flags); - - if (wiinst->mmapped) { - spin_unlock_irqrestore(&wiinst->lock, flags); - return -ENXIO; - } - - if (wiinst->state == WAVE_STATE_CLOSED) { - calculate_ifrag(wiinst); - - while (emu10k1_wavein_open(wave_dev) < 0) { - spin_unlock_irqrestore(&wiinst->lock, flags); - - if (file->f_flags & O_NONBLOCK) - return -EAGAIN; - - interruptible_sleep_on(&wave_dev->card->open_wait); - - if (signal_pending(current)) - return -ERESTARTSYS; - - spin_lock_irqsave(&wiinst->lock, flags); - } - } - - spin_unlock_irqrestore(&wiinst->lock, flags); - - while (count > 0) { - u32 bytestocopy; - - spin_lock_irqsave(&wiinst->lock, flags); - - if (!(wiinst->state & WAVE_STATE_STARTED) - && (wave_dev->enablebits & PCM_ENABLE_INPUT)) - emu10k1_wavein_start(wave_dev); - - emu10k1_wavein_update(wave_dev->card, wiinst); - emu10k1_wavein_getxfersize(wiinst, &bytestocopy); - - spin_unlock_irqrestore(&wiinst->lock, flags); - - DPD(3, "bytestocopy --> %d\n", bytestocopy); - - if ((bytestocopy >= wiinst->buffer.fragment_size) - || (bytestocopy >= count)) { - int rc; - - bytestocopy = min_t(u32, bytestocopy, count); - - rc = emu10k1_wavein_xferdata(wiinst, - (u8 __user *)buffer, - &bytestocopy); - if (rc) - return rc; - - count -= bytestocopy; - buffer += bytestocopy; - ret += bytestocopy; - } - - if (count > 0) { - if ((file->f_flags & O_NONBLOCK) - || (!(wave_dev->enablebits & PCM_ENABLE_INPUT))) - return (ret ? ret : -EAGAIN); - - interruptible_sleep_on(&wiinst->wait_queue); - - if (signal_pending(current)) - return (ret ? ret : -ERESTARTSYS); - - } - } - - DPD(3, "bytes copied -> %d\n", (u32) ret); - - return ret; -} - -static ssize_t emu10k1_audio_write(struct file *file, const char __user *buffer, size_t count, loff_t * ppos) -{ - struct emu10k1_wavedevice *wave_dev = (struct emu10k1_wavedevice *) file->private_data; - struct woinst *woinst = wave_dev->woinst; - ssize_t ret; - unsigned long flags; - - DPD(3, "emu10k1_audio_write(), buffer=%p, count=%d\n", buffer, (u32) count); - - if (!access_ok(VERIFY_READ, buffer, count)) - return -EFAULT; - - spin_lock_irqsave(&woinst->lock, flags); - - if (woinst->mmapped) { - spin_unlock_irqrestore(&woinst->lock, flags); - return -ENXIO; - } - // This is for emu10k1 revs less than 7, we need to go through tram - if (woinst->format.passthrough == 1) { - int r; - - woinst->buffer.ossfragshift = PT_BLOCKSIZE_LOG2; - woinst->buffer.numfrags = PT_BLOCKCOUNT; - calculate_ofrag(woinst); - - r = emu10k1_pt_write(file, buffer, count); - spin_unlock_irqrestore(&woinst->lock, flags); - return r; - } - - if (woinst->state == WAVE_STATE_CLOSED) { - calculate_ofrag(woinst); - - while (emu10k1_waveout_open(wave_dev) < 0) { - spin_unlock_irqrestore(&woinst->lock, flags); - - if (file->f_flags & O_NONBLOCK) - return -EAGAIN; - - interruptible_sleep_on(&wave_dev->card->open_wait); - - if (signal_pending(current)) - return -ERESTARTSYS; - - spin_lock_irqsave(&woinst->lock, flags); - } - } - - spin_unlock_irqrestore(&woinst->lock, flags); - - ret = 0; - if (count % woinst->format.bytespersample) - return -EINVAL; - - count /= woinst->num_voices; - - while (count > 0) { - u32 bytestocopy; - - spin_lock_irqsave(&woinst->lock, flags); - emu10k1_waveout_update(woinst); - emu10k1_waveout_getxfersize(woinst, &bytestocopy); - spin_unlock_irqrestore(&woinst->lock, flags); - - DPD(3, "bytestocopy --> %d\n", bytestocopy); - - if ((bytestocopy >= woinst->buffer.fragment_size) - || (bytestocopy >= count)) { - - bytestocopy = min_t(u32, bytestocopy, count); - - emu10k1_waveout_xferdata(woinst, (u8 __user *) buffer, &bytestocopy); - - count -= bytestocopy; - buffer += bytestocopy * woinst->num_voices; - ret += bytestocopy * woinst->num_voices; - - spin_lock_irqsave(&woinst->lock, flags); - woinst->total_copied += bytestocopy; - - if (!(woinst->state & WAVE_STATE_STARTED) - && (wave_dev->enablebits & PCM_ENABLE_OUTPUT) - && (woinst->total_copied >= woinst->buffer.fragment_size)) - emu10k1_waveout_start(wave_dev); - - spin_unlock_irqrestore(&woinst->lock, flags); - } - - if (count > 0) { - if ((file->f_flags & O_NONBLOCK) - || (!(wave_dev->enablebits & PCM_ENABLE_OUTPUT))) - return (ret ? ret : -EAGAIN); - - interruptible_sleep_on(&woinst->wait_queue); - - if (signal_pending(current)) - return (ret ? ret : -ERESTARTSYS); - } - } - - DPD(3, "bytes copied -> %d\n", (u32) ret); - - return ret; -} - -static int emu10k1_audio_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) -{ - struct emu10k1_wavedevice *wave_dev = (struct emu10k1_wavedevice *) file->private_data; - struct woinst *woinst = NULL; - struct wiinst *wiinst = NULL; - int val = 0; - u32 bytestocopy; - unsigned long flags; - int __user *p = (int __user *)arg; - - DPF(4, "emu10k1_audio_ioctl()\n"); - - if (file->f_mode & FMODE_WRITE) - woinst = wave_dev->woinst; - - if (file->f_mode & FMODE_READ) - wiinst = wave_dev->wiinst; - - switch (cmd) { - case OSS_GETVERSION: - DPF(2, "OSS_GETVERSION:\n"); - return put_user(SOUND_VERSION, p); - - case SNDCTL_DSP_RESET: - DPF(2, "SNDCTL_DSP_RESET:\n"); - wave_dev->enablebits = PCM_ENABLE_OUTPUT | PCM_ENABLE_INPUT; - - if (file->f_mode & FMODE_WRITE) { - spin_lock_irqsave(&woinst->lock, flags); - - if (woinst->state & WAVE_STATE_OPEN) { - emu10k1_waveout_close(wave_dev); - } - - woinst->mmapped = 0; - woinst->total_copied = 0; - woinst->total_played = 0; - woinst->blocks = 0; - - spin_unlock_irqrestore(&woinst->lock, flags); - } - - if (file->f_mode & FMODE_READ) { - spin_lock_irqsave(&wiinst->lock, flags); - - if (wiinst->state & WAVE_STATE_OPEN) { - emu10k1_wavein_close(wave_dev); - } - - wiinst->mmapped = 0; - wiinst->total_recorded = 0; - wiinst->blocks = 0; - spin_unlock_irqrestore(&wiinst->lock, flags); - } - - break; - - case SNDCTL_DSP_SYNC: - DPF(2, "SNDCTL_DSP_SYNC:\n"); - - if (file->f_mode & FMODE_WRITE) { - - spin_lock_irqsave(&woinst->lock, flags); - - if (woinst->state & WAVE_STATE_OPEN) { - - if (woinst->state & WAVE_STATE_STARTED) - while ((woinst->total_played < woinst->total_copied) - && !signal_pending(current)) { - spin_unlock_irqrestore(&woinst->lock, flags); - interruptible_sleep_on(&woinst->wait_queue); - spin_lock_irqsave(&woinst->lock, flags); - } - emu10k1_waveout_close(wave_dev); - } - - woinst->mmapped = 0; - woinst->total_copied = 0; - woinst->total_played = 0; - woinst->blocks = 0; - - spin_unlock_irqrestore(&woinst->lock, flags); - } - - if (file->f_mode & FMODE_READ) { - spin_lock_irqsave(&wiinst->lock, flags); - - if (wiinst->state & WAVE_STATE_OPEN) { - emu10k1_wavein_close(wave_dev); - } - - wiinst->mmapped = 0; - wiinst->total_recorded = 0; - wiinst->blocks = 0; - spin_unlock_irqrestore(&wiinst->lock, flags); - } - - break; - - case SNDCTL_DSP_SETDUPLEX: - DPF(2, "SNDCTL_DSP_SETDUPLEX:\n"); - break; - - case SNDCTL_DSP_GETCAPS: - DPF(2, "SNDCTL_DSP_GETCAPS:\n"); - return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | - DSP_CAP_TRIGGER | DSP_CAP_MMAP | - DSP_CAP_COPROC| DSP_CAP_MULTI, p); - case SNDCTL_DSP_SPEED: - DPF(2, "SNDCTL_DSP_SPEED:\n"); - - if (get_user(val, p)) - return -EFAULT; - - DPD(2, "val is %d\n", val); - - if (val > 0) { - if (file->f_mode & FMODE_READ) { - struct wave_format format; - - spin_lock_irqsave(&wiinst->lock, flags); - - format = wiinst->format; - format.samplingrate = val; - - if (emu10k1_wavein_setformat(wave_dev, &format) < 0) { - spin_unlock_irqrestore(&wiinst->lock, flags); - return -EINVAL; - } - - val = wiinst->format.samplingrate; - - spin_unlock_irqrestore(&wiinst->lock, flags); - - DPD(2, "set recording sampling rate -> %d\n", val); - } - - if (file->f_mode & FMODE_WRITE) { - struct wave_format format; - - spin_lock_irqsave(&woinst->lock, flags); - - format = woinst->format; - format.samplingrate = val; - - if (emu10k1_waveout_setformat(wave_dev, &format) < 0) { - spin_unlock_irqrestore(&woinst->lock, flags); - return -EINVAL; - } - - val = woinst->format.samplingrate; - - spin_unlock_irqrestore(&woinst->lock, flags); - - DPD(2, "set playback sampling rate -> %d\n", val); - } - - return put_user(val, p); - } else { - if (file->f_mode & FMODE_READ) - val = wiinst->format.samplingrate; - else if (file->f_mode & FMODE_WRITE) - val = woinst->format.samplingrate; - - return put_user(val, p); - } - break; - - case SNDCTL_DSP_STEREO: - DPF(2, "SNDCTL_DSP_STEREO:\n"); - - if (get_user(val, p)) - return -EFAULT; - - DPD(2, " val is %d\n", val); - - if (file->f_mode & FMODE_READ) { - struct wave_format format; - - spin_lock_irqsave(&wiinst->lock, flags); - - format = wiinst->format; - format.channels = val ? 2 : 1; - - if (emu10k1_wavein_setformat(wave_dev, &format) < 0) { - spin_unlock_irqrestore(&wiinst->lock, flags); - return -EINVAL; - } - - val = wiinst->format.channels - 1; - - spin_unlock_irqrestore(&wiinst->lock, flags); - DPD(2, "set recording stereo -> %d\n", val); - } - - if (file->f_mode & FMODE_WRITE) { - struct wave_format format; - - spin_lock_irqsave(&woinst->lock, flags); - - format = woinst->format; - format.channels = val ? 2 : 1; - - if (emu10k1_waveout_setformat(wave_dev, &format) < 0) { - spin_unlock_irqrestore(&woinst->lock, flags); - return -EINVAL; - } - - val = woinst->format.channels - 1; - - spin_unlock_irqrestore(&woinst->lock, flags); - - DPD(2, "set playback stereo -> %d\n", val); - } - - return put_user(val, p); - - break; - - case SNDCTL_DSP_CHANNELS: - DPF(2, "SNDCTL_DSP_CHANNELS:\n"); - - if (get_user(val, p)) - return -EFAULT; - - DPD(2, " val is %d\n", val); - - if (val > 0) { - if (file->f_mode & FMODE_READ) { - struct wave_format format; - - spin_lock_irqsave(&wiinst->lock, flags); - - format = wiinst->format; - format.channels = val; - - if (emu10k1_wavein_setformat(wave_dev, &format) < 0) { - spin_unlock_irqrestore(&wiinst->lock, flags); - return -EINVAL; - } - val = wiinst->format.channels; - - spin_unlock_irqrestore(&wiinst->lock, flags); - DPD(2, "set recording number of channels -> %d\n", val); - } - - if (file->f_mode & FMODE_WRITE) { - struct wave_format format; - - spin_lock_irqsave(&woinst->lock, flags); - - format = woinst->format; - format.channels = val; - - if (emu10k1_waveout_setformat(wave_dev, &format) < 0) { - spin_unlock_irqrestore(&woinst->lock, flags); - return -EINVAL; - } - - val = woinst->format.channels; - - spin_unlock_irqrestore(&woinst->lock, flags); - DPD(2, "set playback number of channels -> %d\n", val); - } - - return put_user(val, p); - } else { - if (file->f_mode & FMODE_READ) - val = wiinst->format.channels; - else if (file->f_mode & FMODE_WRITE) - val = woinst->format.channels; - - return put_user(val, p); - } - break; - - case SNDCTL_DSP_GETFMTS: - DPF(2, "SNDCTL_DSP_GETFMTS:\n"); - - if (file->f_mode & FMODE_READ) - val = AFMT_S16_LE; - else if (file->f_mode & FMODE_WRITE) { - val = AFMT_S16_LE | AFMT_U8; - if (emu10k1_find_control_gpr(&wave_dev->card->mgr, - wave_dev->card->pt.patch_name, - wave_dev->card->pt.enable_gpr_name) >= 0) - val |= AFMT_AC3; - } - return put_user(val, p); - - case SNDCTL_DSP_SETFMT: /* Same as SNDCTL_DSP_SAMPLESIZE */ - DPF(2, "SNDCTL_DSP_SETFMT:\n"); - - if (get_user(val, p)) - return -EFAULT; - - DPD(2, " val is %d\n", val); - - if (val != AFMT_QUERY) { - if (file->f_mode & FMODE_READ) { - struct wave_format format; - - spin_lock_irqsave(&wiinst->lock, flags); - - format = wiinst->format; - format.id = val; - - if (emu10k1_wavein_setformat(wave_dev, &format) < 0) { - spin_unlock_irqrestore(&wiinst->lock, flags); - return -EINVAL; - } - - val = wiinst->format.id; - - spin_unlock_irqrestore(&wiinst->lock, flags); - DPD(2, "set recording format -> %d\n", val); - } - - if (file->f_mode & FMODE_WRITE) { - struct wave_format format; - - spin_lock_irqsave(&woinst->lock, flags); - - format = woinst->format; - format.id = val; - - if (emu10k1_waveout_setformat(wave_dev, &format) < 0) { - spin_unlock_irqrestore(&woinst->lock, flags); - return -EINVAL; - } - - val = woinst->format.id; - - spin_unlock_irqrestore(&woinst->lock, flags); - DPD(2, "set playback format -> %d\n", val); - } - - return put_user(val, p); - } else { - if (file->f_mode & FMODE_READ) - val = wiinst->format.id; - else if (file->f_mode & FMODE_WRITE) - val = woinst->format.id; - - return put_user(val, p); - } - break; - - case SOUND_PCM_READ_BITS: - - if (file->f_mode & FMODE_READ) - val = wiinst->format.bitsperchannel; - else if (file->f_mode & FMODE_WRITE) - val = woinst->format.bitsperchannel; - - return put_user(val, p); - - case SOUND_PCM_READ_RATE: - - if (file->f_mode & FMODE_READ) - val = wiinst->format.samplingrate; - else if (file->f_mode & FMODE_WRITE) - val = woinst->format.samplingrate; - - return put_user(val, p); - - case SOUND_PCM_READ_CHANNELS: - - if (file->f_mode & FMODE_READ) - val = wiinst->format.channels; - else if (file->f_mode & FMODE_WRITE) - val = woinst->format.channels; - - return put_user(val, p); - - case SOUND_PCM_WRITE_FILTER: - DPF(2, "SOUND_PCM_WRITE_FILTER: not implemented\n"); - break; - - case SOUND_PCM_READ_FILTER: - DPF(2, "SOUND_PCM_READ_FILTER: not implemented\n"); - break; - - case SNDCTL_DSP_SETSYNCRO: - DPF(2, "SNDCTL_DSP_SETSYNCRO: not implemented\n"); - break; - - case SNDCTL_DSP_GETTRIGGER: - DPF(2, "SNDCTL_DSP_GETTRIGGER:\n"); - - if (file->f_mode & FMODE_WRITE && (wave_dev->enablebits & PCM_ENABLE_OUTPUT)) - val |= PCM_ENABLE_OUTPUT; - - if (file->f_mode & FMODE_READ && (wave_dev->enablebits & PCM_ENABLE_INPUT)) - val |= PCM_ENABLE_INPUT; - - return put_user(val, p); - - case SNDCTL_DSP_SETTRIGGER: - DPF(2, "SNDCTL_DSP_SETTRIGGER:\n"); - - if (get_user(val, p)) - return -EFAULT; - - if (file->f_mode & FMODE_WRITE) { - spin_lock_irqsave(&woinst->lock, flags); - - if (val & PCM_ENABLE_OUTPUT) { - wave_dev->enablebits |= PCM_ENABLE_OUTPUT; - if (woinst->state & WAVE_STATE_OPEN) - emu10k1_waveout_start(wave_dev); - } else { - wave_dev->enablebits &= ~PCM_ENABLE_OUTPUT; - if (woinst->state & WAVE_STATE_STARTED) - emu10k1_waveout_stop(wave_dev); - } - - spin_unlock_irqrestore(&woinst->lock, flags); - } - - if (file->f_mode & FMODE_READ) { - spin_lock_irqsave(&wiinst->lock, flags); - - if (val & PCM_ENABLE_INPUT) { - wave_dev->enablebits |= PCM_ENABLE_INPUT; - if (wiinst->state & WAVE_STATE_OPEN) - emu10k1_wavein_start(wave_dev); - } else { - wave_dev->enablebits &= ~PCM_ENABLE_INPUT; - if (wiinst->state & WAVE_STATE_STARTED) - emu10k1_wavein_stop(wave_dev); - } - - spin_unlock_irqrestore(&wiinst->lock, flags); - } - break; - - case SNDCTL_DSP_GETOSPACE: - { - audio_buf_info info; - - DPF(4, "SNDCTL_DSP_GETOSPACE:\n"); - - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - - spin_lock_irqsave(&woinst->lock, flags); - - if (woinst->state & WAVE_STATE_OPEN) { - emu10k1_waveout_update(woinst); - emu10k1_waveout_getxfersize(woinst, &bytestocopy); - info.bytes = bytestocopy; - } else { - calculate_ofrag(woinst); - info.bytes = woinst->buffer.size; - } - spin_unlock_irqrestore(&woinst->lock, flags); - - info.bytes *= woinst->num_voices; - info.fragsize = woinst->buffer.fragment_size * woinst->num_voices; - info.fragstotal = woinst->buffer.numfrags * woinst->num_voices; - info.fragments = info.bytes / info.fragsize; - - if (copy_to_user(p, &info, sizeof(info))) - return -EFAULT; - } - break; - - case SNDCTL_DSP_GETISPACE: - { - audio_buf_info info; - - DPF(4, "SNDCTL_DSP_GETISPACE:\n"); - - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - - spin_lock_irqsave(&wiinst->lock, flags); - if (wiinst->state & WAVE_STATE_OPEN) { - emu10k1_wavein_update(wave_dev->card, wiinst); - emu10k1_wavein_getxfersize(wiinst, &bytestocopy); - info.bytes = bytestocopy; - } else { - calculate_ifrag(wiinst); - info.bytes = 0; - } - spin_unlock_irqrestore(&wiinst->lock, flags); - - info.fragstotal = wiinst->buffer.numfrags; - info.fragments = info.bytes / wiinst->buffer.fragment_size; - info.fragsize = wiinst->buffer.fragment_size; - - if (copy_to_user(p, &info, sizeof(info))) - return -EFAULT; - } - break; - - case SNDCTL_DSP_NONBLOCK: - DPF(2, "SNDCTL_DSP_NONBLOCK:\n"); - - file->f_flags |= O_NONBLOCK; - break; - - case SNDCTL_DSP_GETODELAY: - DPF(4, "SNDCTL_DSP_GETODELAY:\n"); - - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - - spin_lock_irqsave(&woinst->lock, flags); - if (woinst->state & WAVE_STATE_OPEN) { - emu10k1_waveout_update(woinst); - emu10k1_waveout_getxfersize(woinst, &bytestocopy); - val = woinst->buffer.size - bytestocopy; - } else - val = 0; - - val *= woinst->num_voices; - spin_unlock_irqrestore(&woinst->lock, flags); - - return put_user(val, p); - - case SNDCTL_DSP_GETIPTR: - { - count_info cinfo; - - DPF(4, "SNDCTL_DSP_GETIPTR: \n"); - - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - - spin_lock_irqsave(&wiinst->lock, flags); - - if (wiinst->state & WAVE_STATE_OPEN) { - emu10k1_wavein_update(wave_dev->card, wiinst); - cinfo.ptr = wiinst->buffer.hw_pos; - cinfo.bytes = cinfo.ptr + wiinst->total_recorded - wiinst->total_recorded % wiinst->buffer.size; - cinfo.blocks = cinfo.bytes / wiinst->buffer.fragment_size - wiinst->blocks; - wiinst->blocks = cinfo.bytes / wiinst->buffer.fragment_size; - } else { - cinfo.ptr = 0; - cinfo.bytes = 0; - cinfo.blocks = 0; - } - - if (wiinst->mmapped) - wiinst->buffer.bytestocopy %= wiinst->buffer.fragment_size; - - spin_unlock_irqrestore(&wiinst->lock, flags); - - if (copy_to_user(p, &cinfo, sizeof(cinfo))) - return -EFAULT; - } - break; - - case SNDCTL_DSP_GETOPTR: - { - count_info cinfo; - - DPF(4, "SNDCTL_DSP_GETOPTR:\n"); - - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - - spin_lock_irqsave(&woinst->lock, flags); - - if (woinst->state & WAVE_STATE_OPEN || - ((woinst->format.passthrough == 1) && wave_dev->card->pt.state)) { - int num_fragments; - - if (woinst->format.passthrough == 1) { - emu10k1_pt_waveout_update(wave_dev); - cinfo.bytes = woinst->total_played; - } else { - emu10k1_waveout_update(woinst); - cinfo.bytes = woinst->total_played; - } - - cinfo.ptr = woinst->buffer.hw_pos; - num_fragments = cinfo.bytes / woinst->buffer.fragment_size; - cinfo.blocks = num_fragments - woinst->blocks; - woinst->blocks = num_fragments; - - cinfo.bytes *= woinst->num_voices; - cinfo.ptr *= woinst->num_voices; - } else { - cinfo.ptr = 0; - cinfo.bytes = 0; - cinfo.blocks = 0; - } - - if (woinst->mmapped) - woinst->buffer.free_bytes %= woinst->buffer.fragment_size; - - spin_unlock_irqrestore(&woinst->lock, flags); - - if (copy_to_user(p, &cinfo, sizeof(cinfo))) - return -EFAULT; - } - break; - - case SNDCTL_DSP_GETBLKSIZE: - DPF(2, "SNDCTL_DSP_GETBLKSIZE:\n"); - - if (file->f_mode & FMODE_WRITE) { - spin_lock_irqsave(&woinst->lock, flags); - - calculate_ofrag(woinst); - val = woinst->buffer.fragment_size * woinst->num_voices; - - spin_unlock_irqrestore(&woinst->lock, flags); - } - - if (file->f_mode & FMODE_READ) { - spin_lock_irqsave(&wiinst->lock, flags); - - calculate_ifrag(wiinst); - val = wiinst->buffer.fragment_size; - - spin_unlock_irqrestore(&wiinst->lock, flags); - } - - return put_user(val, p); - - break; - - case SNDCTL_DSP_POST: - if (file->f_mode & FMODE_WRITE) { - spin_lock_irqsave(&woinst->lock, flags); - - if (!(woinst->state & WAVE_STATE_STARTED) - && (wave_dev->enablebits & PCM_ENABLE_OUTPUT) - && (woinst->total_copied > 0)) - emu10k1_waveout_start(wave_dev); - - spin_unlock_irqrestore(&woinst->lock, flags); - } - - break; - - case SNDCTL_DSP_SUBDIVIDE: - DPF(2, "SNDCTL_DSP_SUBDIVIDE: not implemented\n"); - break; - - case SNDCTL_DSP_SETFRAGMENT: - DPF(2, "SNDCTL_DSP_SETFRAGMENT:\n"); - - if (get_user(val, p)) - return -EFAULT; - - DPD(2, "val is %#x\n", val); - - if (val == 0) - return -EIO; - - if (file->f_mode & FMODE_WRITE) { - /* digital pass-through fragment count and size are fixed values */ - if (woinst->state & WAVE_STATE_OPEN || (woinst->format.passthrough == 1)) - return -EINVAL; /* too late to change */ - - woinst->buffer.ossfragshift = val & 0xffff; - woinst->buffer.numfrags = (val >> 16) & 0xffff; - } - - if (file->f_mode & FMODE_READ) { - if (wiinst->state & WAVE_STATE_OPEN) - return -EINVAL; /* too late to change */ - - wiinst->buffer.ossfragshift = val & 0xffff; - wiinst->buffer.numfrags = (val >> 16) & 0xffff; - } - - break; - - case SNDCTL_COPR_LOAD: - { - copr_buffer *buf; - u32 i; - - DPF(4, "SNDCTL_COPR_LOAD:\n"); - - buf = kmalloc(sizeof(copr_buffer), GFP_KERNEL); - if (!buf) - return -ENOMEM; - - if (copy_from_user(buf, p, sizeof(copr_buffer))) { - kfree (buf); - return -EFAULT; - } - - if ((buf->command != CMD_READ) && (buf->command != CMD_WRITE)) { - kfree (buf); - return -EINVAL; - } - - if (buf->command == CMD_WRITE) { - -#ifdef DBGEMU - if ((buf->offs < 0) || (buf->offs + buf->len > 0xe00) || (buf->len > 1000)) { -#else - if (((buf->offs < 0x100) || (buf->offs + buf->len > (wave_dev->card->is_audigy ? 0xe00 : 0x800)) || (buf->len > 1000) - ) && !( - //any register allowed raw access to users goes here: - (buf->offs == DBG || - buf->offs == A_DBG) - && (buf->len == 1))) { -#endif - kfree(buf); - return -EINVAL; - } - } else { - if ((buf->offs < 0) || (buf->offs + buf->len > 0xe00) || (buf->len > 1000)) { - kfree(buf); - return -EINVAL; - } - } - - if (((unsigned)buf->flags) > 0x3f) - buf->flags = 0; - - if (buf->command == CMD_READ) { - for (i = 0; i < buf->len; i++) - ((u32 *) buf->data)[i] = sblive_readptr(wave_dev->card, buf->offs + i, buf->flags); - - if (copy_to_user(p, buf, sizeof(copr_buffer))) { - kfree(buf); - return -EFAULT; - } - } else { - for (i = 0; i < buf->len; i++) - sblive_writeptr(wave_dev->card, buf->offs + i, buf->flags, ((u32 *) buf->data)[i]); - } - - kfree (buf); - break; - } - - default: /* Default is unrecognized command */ - DPD(2, "default: %#x\n", cmd); - return -EINVAL; - } - return 0; -} - -static struct page *emu10k1_mm_nopage (struct vm_area_struct * vma, unsigned long address, int *type) -{ - struct emu10k1_wavedevice *wave_dev = vma->vm_private_data; - struct woinst *woinst = wave_dev->woinst; - struct wiinst *wiinst = wave_dev->wiinst; - struct page *dmapage; - unsigned long pgoff; - int rd, wr; - - DPF(3, "emu10k1_mm_nopage()\n"); - DPD(3, "addr: %#lx\n", address); - - if (address > vma->vm_end) { - DPF(1, "EXIT, returning NOPAGE_SIGBUS\n"); - return NOPAGE_SIGBUS; /* Disallow mremap */ - } - - pgoff = vma->vm_pgoff + ((address - vma->vm_start) >> PAGE_SHIFT); - if (woinst != NULL) - wr = woinst->mmapped; - else - wr = 0; - - if (wiinst != NULL) - rd = wiinst->mmapped; - else - rd = 0; - - /* if full-duplex (read+write) and we have two sets of bufs, - * then the playback buffers come first, sez soundcard.c */ - if (wr) { - if (pgoff >= woinst->buffer.pages) { - pgoff -= woinst->buffer.pages; - dmapage = virt_to_page ((u8 *) wiinst->buffer.addr + pgoff * PAGE_SIZE); - } else - dmapage = virt_to_page (woinst->voice[0].mem.addr[pgoff]); - } else { - dmapage = virt_to_page ((u8 *) wiinst->buffer.addr + pgoff * PAGE_SIZE); - } - - get_page (dmapage); - - DPD(3, "page: %#lx\n", (unsigned long) dmapage); - if (type) - *type = VM_FAULT_MINOR; - return dmapage; -} - -static struct vm_operations_struct emu10k1_mm_ops = { - .nopage = emu10k1_mm_nopage, -}; - -static int emu10k1_audio_mmap(struct file *file, struct vm_area_struct *vma) -{ - struct emu10k1_wavedevice *wave_dev = (struct emu10k1_wavedevice *) file->private_data; - unsigned long max_pages, n_pages, pgoffset; - struct woinst *woinst = NULL; - struct wiinst *wiinst = NULL; - unsigned long flags; - - DPF(2, "emu10k1_audio_mmap()\n"); - - max_pages = 0; - if (vma->vm_flags & VM_WRITE) { - woinst = wave_dev->woinst; - - spin_lock_irqsave(&woinst->lock, flags); - - /* No m'mapping possible for multichannel */ - if (woinst->num_voices > 1) { - spin_unlock_irqrestore(&woinst->lock, flags); - return -EINVAL; - } - - if (woinst->state == WAVE_STATE_CLOSED) { - calculate_ofrag(woinst); - - if (emu10k1_waveout_open(wave_dev) < 0) { - spin_unlock_irqrestore(&woinst->lock, flags); - ERROR(); - return -EINVAL; - } - } - - woinst->mmapped = 1; - max_pages += woinst->buffer.pages; - spin_unlock_irqrestore(&woinst->lock, flags); - } - - if (vma->vm_flags & VM_READ) { - wiinst = wave_dev->wiinst; - - spin_lock_irqsave(&wiinst->lock, flags); - if (wiinst->state == WAVE_STATE_CLOSED) { - calculate_ifrag(wiinst); - - if (emu10k1_wavein_open(wave_dev) < 0) { - spin_unlock_irqrestore(&wiinst->lock, flags); - ERROR(); - return -EINVAL; - } - } - - wiinst->mmapped = 1; - max_pages += wiinst->buffer.pages; - spin_unlock_irqrestore(&wiinst->lock, flags); - } - - n_pages = ((vma->vm_end - vma->vm_start) + PAGE_SIZE - 1) >> PAGE_SHIFT; - pgoffset = vma->vm_pgoff; - - DPD(2, "vma_start: %#lx, vma_end: %#lx, vma_offset: %ld\n", vma->vm_start, vma->vm_end, pgoffset); - DPD(2, "n_pages: %ld, max_pages: %ld\n", n_pages, max_pages); - - if (pgoffset + n_pages > max_pages) - return -EINVAL; - - vma->vm_flags |= VM_RESERVED; - vma->vm_ops = &emu10k1_mm_ops; - vma->vm_private_data = wave_dev; - return 0; -} - -static int emu10k1_audio_open(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - struct emu10k1_card *card = NULL; - struct list_head *entry; - struct emu10k1_wavedevice *wave_dev; - - DPF(2, "emu10k1_audio_open()\n"); - - /* Check for correct device to open */ - - list_for_each(entry, &emu10k1_devs) { - card = list_entry(entry, struct emu10k1_card, list); - - if (!((card->audio_dev ^ minor) & ~0xf) || !((card->audio_dev1 ^ minor) & ~0xf)) - goto match; - } - - return -ENODEV; - -match: - - wave_dev = kmalloc(sizeof(struct emu10k1_wavedevice), GFP_KERNEL); - - if (wave_dev == NULL) { - ERROR(); - return -ENOMEM; - } - - wave_dev->card = card; - wave_dev->wiinst = NULL; - wave_dev->woinst = NULL; - wave_dev->enablebits = PCM_ENABLE_OUTPUT | PCM_ENABLE_INPUT; /* Default */ - - if (file->f_mode & FMODE_READ) { - /* Recording */ - struct wiinst *wiinst; - - if ((wiinst = kmalloc(sizeof(struct wiinst), GFP_KERNEL)) == NULL) { - ERROR(); - kfree(wave_dev); - return -ENOMEM; - } - - wiinst->recsrc = card->wavein.recsrc; - wiinst->fxwc = card->wavein.fxwc; - - switch (wiinst->recsrc) { - case WAVERECORD_AC97: - wiinst->format.id = AFMT_S16_LE; - wiinst->format.samplingrate = 8000; - wiinst->format.bitsperchannel = 16; - wiinst->format.channels = 1; - break; - case WAVERECORD_MIC: - wiinst->format.id = AFMT_S16_LE; - wiinst->format.samplingrate = 8000; - wiinst->format.bitsperchannel = 16; - wiinst->format.channels = 1; - break; - case WAVERECORD_FX: - wiinst->format.id = AFMT_S16_LE; - wiinst->format.samplingrate = 48000; - wiinst->format.bitsperchannel = 16; - wiinst->format.channels = hweight32(wiinst->fxwc); - break; - default: - kfree(wave_dev); - kfree(wiinst); - BUG(); - break; - } - - wiinst->state = WAVE_STATE_CLOSED; - - wiinst->buffer.ossfragshift = 0; - wiinst->buffer.fragment_size = 0; - wiinst->buffer.numfrags = 0; - - init_waitqueue_head(&wiinst->wait_queue); - - wiinst->mmapped = 0; - wiinst->total_recorded = 0; - wiinst->blocks = 0; - spin_lock_init(&wiinst->lock); - tasklet_init(&wiinst->timer.tasklet, emu10k1_wavein_bh, (unsigned long) wave_dev); - wave_dev->wiinst = wiinst; - emu10k1_wavein_setformat(wave_dev, &wiinst->format); - } - - if (file->f_mode & FMODE_WRITE) { - struct woinst *woinst; - int i; - - if ((woinst = kmalloc(sizeof(struct woinst), GFP_KERNEL)) == NULL) { - ERROR(); - kfree(wave_dev); - return -ENOMEM; - } - - if (wave_dev->wiinst != NULL) { - woinst->format = wave_dev->wiinst->format; - } else { - woinst->format.id = AFMT_U8; - woinst->format.samplingrate = 8000; - woinst->format.bitsperchannel = 8; - woinst->format.channels = 1; - } - - woinst->state = WAVE_STATE_CLOSED; - - woinst->buffer.fragment_size = 0; - woinst->buffer.ossfragshift = 0; - woinst->buffer.numfrags = 0; - woinst->device = (card->audio_dev1 == minor); - woinst->timer.state = TIMER_STATE_UNINSTALLED; - woinst->num_voices = 1; - for (i = 0; i < WAVEOUT_MAXVOICES; i++) { - woinst->voice[i].usage = VOICE_USAGE_FREE; - woinst->voice[i].mem.emupageindex = -1; - } - - init_waitqueue_head(&woinst->wait_queue); - - woinst->mmapped = 0; - woinst->total_copied = 0; - woinst->total_played = 0; - woinst->blocks = 0; - spin_lock_init(&woinst->lock); - tasklet_init(&woinst->timer.tasklet, emu10k1_waveout_bh, (unsigned long) wave_dev); - wave_dev->woinst = woinst; - emu10k1_waveout_setformat(wave_dev, &woinst->format); - } - - file->private_data = (void *) wave_dev; - - return nonseekable_open(inode, file); -} - -static int emu10k1_audio_release(struct inode *inode, struct file *file) -{ - struct emu10k1_wavedevice *wave_dev = (struct emu10k1_wavedevice *) file->private_data; - struct emu10k1_card *card; - unsigned long flags; - - card = wave_dev->card; - - DPF(2, "emu10k1_audio_release()\n"); - - if (file->f_mode & FMODE_WRITE) { - struct woinst *woinst = wave_dev->woinst; - - spin_lock_irqsave(&woinst->lock, flags); - if(woinst->format.passthrough==2) - card->pt.state=PT_STATE_PLAYING; - if (woinst->format.passthrough && card->pt.state != PT_STATE_INACTIVE){ - spin_lock(&card->pt.lock); - emu10k1_pt_stop(card); - spin_unlock(&card->pt.lock); - } - if (woinst->state & WAVE_STATE_OPEN) { - if (woinst->state & WAVE_STATE_STARTED) { - if (!(file->f_flags & O_NONBLOCK)) { - while (!signal_pending(current) - && (woinst->total_played < woinst->total_copied)) { - DPF(4, "Buffer hasn't been totally played, sleep....\n"); - spin_unlock_irqrestore(&woinst->lock, flags); - interruptible_sleep_on(&woinst->wait_queue); - spin_lock_irqsave(&woinst->lock, flags); - } - } - } - emu10k1_waveout_close(wave_dev); - } - - spin_unlock_irqrestore(&woinst->lock, flags); - /* remove the tasklet */ - tasklet_kill(&woinst->timer.tasklet); - kfree(wave_dev->woinst); - } - - if (file->f_mode & FMODE_READ) { - struct wiinst *wiinst = wave_dev->wiinst; - - spin_lock_irqsave(&wiinst->lock, flags); - - if (wiinst->state & WAVE_STATE_OPEN) { - emu10k1_wavein_close(wave_dev); - } - - spin_unlock_irqrestore(&wiinst->lock, flags); - tasklet_kill(&wiinst->timer.tasklet); - kfree(wave_dev->wiinst); - } - - kfree(wave_dev); - - if (waitqueue_active(&card->open_wait)) - wake_up_interruptible(&card->open_wait); - - return 0; -} - -/* FIXME sort out poll() + mmap() */ -static unsigned int emu10k1_audio_poll(struct file *file, struct poll_table_struct *wait) -{ - struct emu10k1_wavedevice *wave_dev = (struct emu10k1_wavedevice *) file->private_data; - struct woinst *woinst = wave_dev->woinst; - struct wiinst *wiinst = wave_dev->wiinst; - unsigned int mask = 0; - u32 bytestocopy; - unsigned long flags; - - DPF(4, "emu10k1_audio_poll()\n"); - - if (file->f_mode & FMODE_WRITE) - poll_wait(file, &woinst->wait_queue, wait); - - if (file->f_mode & FMODE_READ) - poll_wait(file, &wiinst->wait_queue, wait); - - if (file->f_mode & FMODE_WRITE) { - spin_lock_irqsave(&woinst->lock, flags); - - if (woinst->state & WAVE_STATE_OPEN) { - emu10k1_waveout_update(woinst); - emu10k1_waveout_getxfersize(woinst, &bytestocopy); - - if (bytestocopy >= woinst->buffer.fragment_size) - mask |= POLLOUT | POLLWRNORM; - } else - mask |= POLLOUT | POLLWRNORM; - - spin_unlock_irqrestore(&woinst->lock, flags); - } - - if (file->f_mode & FMODE_READ) { - spin_lock_irqsave(&wiinst->lock, flags); - - if (wiinst->state & WAVE_STATE_OPEN) { - emu10k1_wavein_update(wave_dev->card, wiinst); - emu10k1_wavein_getxfersize(wiinst, &bytestocopy); - - if (bytestocopy >= wiinst->buffer.fragment_size) - mask |= POLLIN | POLLRDNORM; - } - - spin_unlock_irqrestore(&wiinst->lock, flags); - } - - return mask; -} - -static void calculate_ofrag(struct woinst *woinst) -{ - struct waveout_buffer *buffer = &woinst->buffer; - u32 fragsize; - - if (buffer->fragment_size) - return; - - if (!buffer->ossfragshift) { - fragsize = (woinst->format.bytespervoicesample * woinst->format.samplingrate * WAVEOUT_DEFAULTFRAGLEN) / 1000 - 1; - - while (fragsize) { - fragsize >>= 1; - buffer->ossfragshift++; - } - } - - if (buffer->ossfragshift < WAVEOUT_MINFRAGSHIFT) - buffer->ossfragshift = WAVEOUT_MINFRAGSHIFT; - - buffer->fragment_size = 1 << buffer->ossfragshift; - - while (buffer->fragment_size * WAVEOUT_MINFRAGS > WAVEOUT_MAXBUFSIZE) - buffer->fragment_size >>= 1; - - /* now we are sure that: - (2^WAVEOUT_MINFRAGSHIFT) <= (fragment_size = 2^n) <= (WAVEOUT_MAXBUFSIZE / WAVEOUT_MINFRAGS) - */ - - if (!buffer->numfrags) { - u32 numfrags; - - numfrags = (woinst->format.bytespervoicesample * woinst->format.samplingrate * WAVEOUT_DEFAULTBUFLEN) / - (buffer->fragment_size * 1000) - 1; - - buffer->numfrags = 1; - - while (numfrags) { - numfrags >>= 1; - buffer->numfrags <<= 1; - } - } - - if (buffer->numfrags < WAVEOUT_MINFRAGS) - buffer->numfrags = WAVEOUT_MINFRAGS; - - if (buffer->numfrags * buffer->fragment_size > WAVEOUT_MAXBUFSIZE) - buffer->numfrags = WAVEOUT_MAXBUFSIZE / buffer->fragment_size; - - if (buffer->numfrags < WAVEOUT_MINFRAGS) - BUG(); - - buffer->size = buffer->fragment_size * buffer->numfrags; - buffer->pages = buffer->size / PAGE_SIZE + ((buffer->size % PAGE_SIZE) ? 1 : 0); - - DPD(2, " calculated playback fragment_size -> %d\n", buffer->fragment_size); - DPD(2, " calculated playback numfrags -> %d\n", buffer->numfrags); - - return; -} - -static void calculate_ifrag(struct wiinst *wiinst) -{ - struct wavein_buffer *buffer = &wiinst->buffer; - u32 fragsize, bufsize, size[4]; - int i, j; - - if (buffer->fragment_size) - return; - - if (!buffer->ossfragshift) { - fragsize = (wiinst->format.bytespersec * WAVEIN_DEFAULTFRAGLEN) / 1000 - 1; - - while (fragsize) { - fragsize >>= 1; - buffer->ossfragshift++; - } - } - - if (buffer->ossfragshift < WAVEIN_MINFRAGSHIFT) - buffer->ossfragshift = WAVEIN_MINFRAGSHIFT; - - buffer->fragment_size = 1 << buffer->ossfragshift; - - while (buffer->fragment_size * WAVEIN_MINFRAGS > WAVEIN_MAXBUFSIZE) - buffer->fragment_size >>= 1; - - /* now we are sure that: - (2^WAVEIN_MINFRAGSHIFT) <= (fragment_size = 2^n) <= (WAVEIN_MAXBUFSIZE / WAVEIN_MINFRAGS) - */ - - - if (!buffer->numfrags) - buffer->numfrags = (wiinst->format.bytespersec * WAVEIN_DEFAULTBUFLEN) / (buffer->fragment_size * 1000) - 1; - - if (buffer->numfrags < WAVEIN_MINFRAGS) - buffer->numfrags = WAVEIN_MINFRAGS; - - if (buffer->numfrags * buffer->fragment_size > WAVEIN_MAXBUFSIZE) - buffer->numfrags = WAVEIN_MAXBUFSIZE / buffer->fragment_size; - - if (buffer->numfrags < WAVEIN_MINFRAGS) - BUG(); - - bufsize = buffer->fragment_size * buffer->numfrags; - - /* the buffer size for recording is restricted to certain values, adjust it now */ - if (bufsize >= 0x10000) { - buffer->size = 0x10000; - buffer->sizeregval = 0x1f; - } else { - buffer->size = 0; - size[0] = 384; - size[1] = 448; - size[2] = 512; - size[3] = 640; - - for (i = 0; i < 8; i++) - for (j = 0; j < 4; j++) - if (bufsize >= size[j]) { - buffer->size = size[j]; - size[j] *= 2; - buffer->sizeregval = i * 4 + j + 1; - } else - goto exitloop; - exitloop: - if (buffer->size == 0) { - buffer->size = 384; - buffer->sizeregval = 0x01; - } - } - - /* adjust the fragment size so that buffer size is an integer multiple */ - while (buffer->size % buffer->fragment_size) - buffer->fragment_size >>= 1; - - buffer->numfrags = buffer->size / buffer->fragment_size; - buffer->pages = buffer->size / PAGE_SIZE + ((buffer->size % PAGE_SIZE) ? 1 : 0); - - DPD(2, " calculated recording fragment_size -> %d\n", buffer->fragment_size); - DPD(2, " calculated recording numfrags -> %d\n", buffer->numfrags); - DPD(2, " buffer size register -> %#04x\n", buffer->sizeregval); - - return; -} - -static void emu10k1_wavein_bh(unsigned long refdata) -{ - struct emu10k1_wavedevice *wave_dev = (struct emu10k1_wavedevice *) refdata; - struct wiinst *wiinst = wave_dev->wiinst; - u32 bytestocopy; - unsigned long flags; - - if (!wiinst) - return; - - spin_lock_irqsave(&wiinst->lock, flags); - - if (!(wiinst->state & WAVE_STATE_STARTED)) { - spin_unlock_irqrestore(&wiinst->lock, flags); - return; - } - - emu10k1_wavein_update(wave_dev->card, wiinst); - emu10k1_wavein_getxfersize(wiinst, &bytestocopy); - - spin_unlock_irqrestore(&wiinst->lock, flags); - - if (bytestocopy >= wiinst->buffer.fragment_size) { - if (waitqueue_active(&wiinst->wait_queue)) - wake_up_interruptible(&wiinst->wait_queue); - } else - DPD(3, "Not enough transfer size, %d\n", bytestocopy); - - return; -} - -static void emu10k1_waveout_bh(unsigned long refdata) -{ - struct emu10k1_wavedevice *wave_dev = (struct emu10k1_wavedevice *) refdata; - struct woinst *woinst = wave_dev->woinst; - u32 bytestocopy; - unsigned long flags; - - if (!woinst) - return; - - spin_lock_irqsave(&woinst->lock, flags); - - if (!(woinst->state & WAVE_STATE_STARTED)) { - spin_unlock_irqrestore(&woinst->lock, flags); - return; - } - - emu10k1_waveout_update(woinst); - emu10k1_waveout_getxfersize(woinst, &bytestocopy); - - if (woinst->buffer.fill_silence) { - spin_unlock_irqrestore(&woinst->lock, flags); - emu10k1_waveout_fillsilence(woinst); - } else - spin_unlock_irqrestore(&woinst->lock, flags); - - if (bytestocopy >= woinst->buffer.fragment_size) { - if (waitqueue_active(&woinst->wait_queue)) - wake_up_interruptible(&woinst->wait_queue); - } else - DPD(3, "Not enough transfer size -> %d\n", bytestocopy); - - return; -} - -const struct file_operations emu10k1_audio_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = emu10k1_audio_read, - .write = emu10k1_audio_write, - .poll = emu10k1_audio_poll, - .ioctl = emu10k1_audio_ioctl, - .mmap = emu10k1_audio_mmap, - .open = emu10k1_audio_open, - .release = emu10k1_audio_release, -}; |
