Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/sound/oss/emu10k1/audio.c b/sound/oss/emu10k1/audio.c
new file mode 100644
index 0000000..cde4d59
--- /dev/null
+++ b/sound/oss/emu10k1/audio.c
@@ -0,0 +1,1588 @@
+/*
+ **********************************************************************
+ * 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/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)) {
+ bytestocopy = min_t(u32, bytestocopy, count);
+
+ emu10k1_wavein_xferdata(wiinst, (u8 __user *)buffer, &bytestocopy);
+
+ 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 = (struct emu10k1_wavedevice *) 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 = (struct 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 = (struct 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;
+}
+
+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,
+};