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Diffstat (limited to 'sound/oss/emu10k1/audio.c')
-rw-r--r--sound/oss/emu10k1/audio.c1595
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,
-};
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