1da177e4c3
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!
1588 lines
39 KiB
C
1588 lines
39 KiB
C
/*
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**********************************************************************
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* audio.c -- /dev/dsp interface for emu10k1 driver
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* Copyright 1999, 2000 Creative Labs, Inc.
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*
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**********************************************************************
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*
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* Date Author Summary of changes
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* ---- ------ ------------------
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* October 20, 1999 Bertrand Lee base code release
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* November 2, 1999 Alan Cox cleaned up types/leaks
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*
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**********************************************************************
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
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* USA.
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*
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**********************************************************************
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*/
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#include <linux/module.h>
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#include <linux/poll.h>
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#include <linux/slab.h>
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#include <linux/bitops.h>
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#include <asm/io.h>
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#include <linux/sched.h>
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#include <linux/smp_lock.h>
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#include "hwaccess.h"
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#include "cardwo.h"
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#include "cardwi.h"
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#include "recmgr.h"
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#include "irqmgr.h"
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#include "audio.h"
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#include "8010.h"
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static void calculate_ofrag(struct woinst *);
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static void calculate_ifrag(struct wiinst *);
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static void emu10k1_waveout_bh(unsigned long refdata);
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static void emu10k1_wavein_bh(unsigned long refdata);
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/* Audio file operations */
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static ssize_t emu10k1_audio_read(struct file *file, char __user *buffer, size_t count, loff_t * ppos)
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{
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struct emu10k1_wavedevice *wave_dev = (struct emu10k1_wavedevice *) file->private_data;
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struct wiinst *wiinst = wave_dev->wiinst;
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ssize_t ret = 0;
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unsigned long flags;
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DPD(3, "emu10k1_audio_read(), buffer=%p, count=%d\n", buffer, (u32) count);
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if (!access_ok(VERIFY_WRITE, buffer, count))
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return -EFAULT;
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spin_lock_irqsave(&wiinst->lock, flags);
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if (wiinst->mmapped) {
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spin_unlock_irqrestore(&wiinst->lock, flags);
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return -ENXIO;
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}
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if (wiinst->state == WAVE_STATE_CLOSED) {
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calculate_ifrag(wiinst);
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while (emu10k1_wavein_open(wave_dev) < 0) {
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spin_unlock_irqrestore(&wiinst->lock, flags);
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if (file->f_flags & O_NONBLOCK)
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return -EAGAIN;
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interruptible_sleep_on(&wave_dev->card->open_wait);
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if (signal_pending(current))
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return -ERESTARTSYS;
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spin_lock_irqsave(&wiinst->lock, flags);
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}
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}
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spin_unlock_irqrestore(&wiinst->lock, flags);
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while (count > 0) {
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u32 bytestocopy;
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spin_lock_irqsave(&wiinst->lock, flags);
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if (!(wiinst->state & WAVE_STATE_STARTED)
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&& (wave_dev->enablebits & PCM_ENABLE_INPUT))
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emu10k1_wavein_start(wave_dev);
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emu10k1_wavein_update(wave_dev->card, wiinst);
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emu10k1_wavein_getxfersize(wiinst, &bytestocopy);
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spin_unlock_irqrestore(&wiinst->lock, flags);
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DPD(3, "bytestocopy --> %d\n", bytestocopy);
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if ((bytestocopy >= wiinst->buffer.fragment_size)
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|| (bytestocopy >= count)) {
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bytestocopy = min_t(u32, bytestocopy, count);
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emu10k1_wavein_xferdata(wiinst, (u8 __user *)buffer, &bytestocopy);
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count -= bytestocopy;
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buffer += bytestocopy;
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ret += bytestocopy;
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}
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if (count > 0) {
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if ((file->f_flags & O_NONBLOCK)
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|| (!(wave_dev->enablebits & PCM_ENABLE_INPUT)))
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return (ret ? ret : -EAGAIN);
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interruptible_sleep_on(&wiinst->wait_queue);
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if (signal_pending(current))
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return (ret ? ret : -ERESTARTSYS);
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}
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}
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DPD(3, "bytes copied -> %d\n", (u32) ret);
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return ret;
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}
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static ssize_t emu10k1_audio_write(struct file *file, const char __user *buffer, size_t count, loff_t * ppos)
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{
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struct emu10k1_wavedevice *wave_dev = (struct emu10k1_wavedevice *) file->private_data;
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struct woinst *woinst = wave_dev->woinst;
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ssize_t ret;
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unsigned long flags;
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DPD(3, "emu10k1_audio_write(), buffer=%p, count=%d\n", buffer, (u32) count);
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if (!access_ok(VERIFY_READ, buffer, count))
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return -EFAULT;
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spin_lock_irqsave(&woinst->lock, flags);
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if (woinst->mmapped) {
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spin_unlock_irqrestore(&woinst->lock, flags);
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return -ENXIO;
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}
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// This is for emu10k1 revs less than 7, we need to go through tram
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if (woinst->format.passthrough == 1) {
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int r;
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woinst->buffer.ossfragshift = PT_BLOCKSIZE_LOG2;
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woinst->buffer.numfrags = PT_BLOCKCOUNT;
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calculate_ofrag(woinst);
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r = emu10k1_pt_write(file, buffer, count);
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spin_unlock_irqrestore(&woinst->lock, flags);
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return r;
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}
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if (woinst->state == WAVE_STATE_CLOSED) {
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calculate_ofrag(woinst);
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while (emu10k1_waveout_open(wave_dev) < 0) {
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spin_unlock_irqrestore(&woinst->lock, flags);
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if (file->f_flags & O_NONBLOCK)
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return -EAGAIN;
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interruptible_sleep_on(&wave_dev->card->open_wait);
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if (signal_pending(current))
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return -ERESTARTSYS;
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spin_lock_irqsave(&woinst->lock, flags);
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}
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}
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spin_unlock_irqrestore(&woinst->lock, flags);
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ret = 0;
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if (count % woinst->format.bytespersample)
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return -EINVAL;
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count /= woinst->num_voices;
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while (count > 0) {
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u32 bytestocopy;
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spin_lock_irqsave(&woinst->lock, flags);
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emu10k1_waveout_update(woinst);
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emu10k1_waveout_getxfersize(woinst, &bytestocopy);
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spin_unlock_irqrestore(&woinst->lock, flags);
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DPD(3, "bytestocopy --> %d\n", bytestocopy);
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if ((bytestocopy >= woinst->buffer.fragment_size)
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|| (bytestocopy >= count)) {
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bytestocopy = min_t(u32, bytestocopy, count);
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emu10k1_waveout_xferdata(woinst, (u8 __user *) buffer, &bytestocopy);
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count -= bytestocopy;
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buffer += bytestocopy * woinst->num_voices;
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ret += bytestocopy * woinst->num_voices;
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spin_lock_irqsave(&woinst->lock, flags);
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woinst->total_copied += bytestocopy;
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if (!(woinst->state & WAVE_STATE_STARTED)
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&& (wave_dev->enablebits & PCM_ENABLE_OUTPUT)
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&& (woinst->total_copied >= woinst->buffer.fragment_size))
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emu10k1_waveout_start(wave_dev);
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spin_unlock_irqrestore(&woinst->lock, flags);
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}
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if (count > 0) {
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if ((file->f_flags & O_NONBLOCK)
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|| (!(wave_dev->enablebits & PCM_ENABLE_OUTPUT)))
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return (ret ? ret : -EAGAIN);
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interruptible_sleep_on(&woinst->wait_queue);
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if (signal_pending(current))
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return (ret ? ret : -ERESTARTSYS);
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}
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}
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DPD(3, "bytes copied -> %d\n", (u32) ret);
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return ret;
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}
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static int emu10k1_audio_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
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{
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struct emu10k1_wavedevice *wave_dev = (struct emu10k1_wavedevice *) file->private_data;
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struct woinst *woinst = NULL;
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struct wiinst *wiinst = NULL;
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int val = 0;
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u32 bytestocopy;
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unsigned long flags;
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int __user *p = (int __user *)arg;
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DPF(4, "emu10k1_audio_ioctl()\n");
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if (file->f_mode & FMODE_WRITE)
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woinst = wave_dev->woinst;
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if (file->f_mode & FMODE_READ)
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wiinst = wave_dev->wiinst;
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switch (cmd) {
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case OSS_GETVERSION:
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DPF(2, "OSS_GETVERSION:\n");
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return put_user(SOUND_VERSION, p);
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case SNDCTL_DSP_RESET:
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DPF(2, "SNDCTL_DSP_RESET:\n");
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wave_dev->enablebits = PCM_ENABLE_OUTPUT | PCM_ENABLE_INPUT;
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if (file->f_mode & FMODE_WRITE) {
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spin_lock_irqsave(&woinst->lock, flags);
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if (woinst->state & WAVE_STATE_OPEN) {
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emu10k1_waveout_close(wave_dev);
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}
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woinst->mmapped = 0;
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woinst->total_copied = 0;
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woinst->total_played = 0;
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woinst->blocks = 0;
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spin_unlock_irqrestore(&woinst->lock, flags);
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}
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if (file->f_mode & FMODE_READ) {
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spin_lock_irqsave(&wiinst->lock, flags);
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if (wiinst->state & WAVE_STATE_OPEN) {
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emu10k1_wavein_close(wave_dev);
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}
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wiinst->mmapped = 0;
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wiinst->total_recorded = 0;
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wiinst->blocks = 0;
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spin_unlock_irqrestore(&wiinst->lock, flags);
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}
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break;
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case SNDCTL_DSP_SYNC:
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DPF(2, "SNDCTL_DSP_SYNC:\n");
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if (file->f_mode & FMODE_WRITE) {
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spin_lock_irqsave(&woinst->lock, flags);
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if (woinst->state & WAVE_STATE_OPEN) {
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if (woinst->state & WAVE_STATE_STARTED)
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while ((woinst->total_played < woinst->total_copied)
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&& !signal_pending(current)) {
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spin_unlock_irqrestore(&woinst->lock, flags);
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interruptible_sleep_on(&woinst->wait_queue);
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spin_lock_irqsave(&woinst->lock, flags);
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}
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emu10k1_waveout_close(wave_dev);
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}
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woinst->mmapped = 0;
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woinst->total_copied = 0;
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woinst->total_played = 0;
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woinst->blocks = 0;
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spin_unlock_irqrestore(&woinst->lock, flags);
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}
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if (file->f_mode & FMODE_READ) {
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spin_lock_irqsave(&wiinst->lock, flags);
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if (wiinst->state & WAVE_STATE_OPEN) {
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emu10k1_wavein_close(wave_dev);
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}
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wiinst->mmapped = 0;
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wiinst->total_recorded = 0;
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wiinst->blocks = 0;
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spin_unlock_irqrestore(&wiinst->lock, flags);
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}
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break;
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case SNDCTL_DSP_SETDUPLEX:
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DPF(2, "SNDCTL_DSP_SETDUPLEX:\n");
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break;
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case SNDCTL_DSP_GETCAPS:
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DPF(2, "SNDCTL_DSP_GETCAPS:\n");
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return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME |
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DSP_CAP_TRIGGER | DSP_CAP_MMAP |
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DSP_CAP_COPROC| DSP_CAP_MULTI, p);
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case SNDCTL_DSP_SPEED:
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DPF(2, "SNDCTL_DSP_SPEED:\n");
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if (get_user(val, p))
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return -EFAULT;
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DPD(2, "val is %d\n", val);
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if (val > 0) {
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if (file->f_mode & FMODE_READ) {
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struct wave_format format;
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spin_lock_irqsave(&wiinst->lock, flags);
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format = wiinst->format;
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format.samplingrate = val;
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if (emu10k1_wavein_setformat(wave_dev, &format) < 0) {
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spin_unlock_irqrestore(&wiinst->lock, flags);
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return -EINVAL;
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}
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val = wiinst->format.samplingrate;
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spin_unlock_irqrestore(&wiinst->lock, flags);
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DPD(2, "set recording sampling rate -> %d\n", val);
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}
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if (file->f_mode & FMODE_WRITE) {
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struct wave_format format;
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spin_lock_irqsave(&woinst->lock, flags);
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format = woinst->format;
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format.samplingrate = val;
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if (emu10k1_waveout_setformat(wave_dev, &format) < 0) {
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spin_unlock_irqrestore(&woinst->lock, flags);
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return -EINVAL;
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}
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val = woinst->format.samplingrate;
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spin_unlock_irqrestore(&woinst->lock, flags);
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DPD(2, "set playback sampling rate -> %d\n", val);
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}
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return put_user(val, p);
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} else {
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if (file->f_mode & FMODE_READ)
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val = wiinst->format.samplingrate;
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else if (file->f_mode & FMODE_WRITE)
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val = woinst->format.samplingrate;
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return put_user(val, p);
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}
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break;
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case SNDCTL_DSP_STEREO:
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DPF(2, "SNDCTL_DSP_STEREO:\n");
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if (get_user(val, p))
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return -EFAULT;
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DPD(2, " val is %d\n", val);
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if (file->f_mode & FMODE_READ) {
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struct wave_format format;
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spin_lock_irqsave(&wiinst->lock, flags);
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format = wiinst->format;
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format.channels = val ? 2 : 1;
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if (emu10k1_wavein_setformat(wave_dev, &format) < 0) {
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spin_unlock_irqrestore(&wiinst->lock, flags);
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return -EINVAL;
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}
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val = wiinst->format.channels - 1;
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spin_unlock_irqrestore(&wiinst->lock, flags);
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DPD(2, "set recording stereo -> %d\n", val);
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}
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if (file->f_mode & FMODE_WRITE) {
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struct wave_format format;
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spin_lock_irqsave(&woinst->lock, flags);
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format = woinst->format;
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format.channels = val ? 2 : 1;
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if (emu10k1_waveout_setformat(wave_dev, &format) < 0) {
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spin_unlock_irqrestore(&woinst->lock, flags);
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return -EINVAL;
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}
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val = woinst->format.channels - 1;
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spin_unlock_irqrestore(&woinst->lock, flags);
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DPD(2, "set playback stereo -> %d\n", val);
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}
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return put_user(val, p);
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break;
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case SNDCTL_DSP_CHANNELS:
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DPF(2, "SNDCTL_DSP_CHANNELS:\n");
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if (get_user(val, p))
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return -EFAULT;
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DPD(2, " val is %d\n", val);
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if (val > 0) {
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if (file->f_mode & FMODE_READ) {
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struct wave_format format;
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spin_lock_irqsave(&wiinst->lock, flags);
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format = wiinst->format;
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format.channels = val;
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if (emu10k1_wavein_setformat(wave_dev, &format) < 0) {
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spin_unlock_irqrestore(&wiinst->lock, flags);
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return -EINVAL;
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}
|
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val = wiinst->format.channels;
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spin_unlock_irqrestore(&wiinst->lock, flags);
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DPD(2, "set recording number of channels -> %d\n", val);
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}
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|
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if (file->f_mode & FMODE_WRITE) {
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struct wave_format format;
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spin_lock_irqsave(&woinst->lock, flags);
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format = woinst->format;
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format.channels = val;
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if (emu10k1_waveout_setformat(wave_dev, &format) < 0) {
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spin_unlock_irqrestore(&woinst->lock, flags);
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return -EINVAL;
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}
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|
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val = woinst->format.channels;
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|
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spin_unlock_irqrestore(&woinst->lock, flags);
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DPD(2, "set playback number of channels -> %d\n", val);
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}
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return put_user(val, p);
|
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} else {
|
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if (file->f_mode & FMODE_READ)
|
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val = wiinst->format.channels;
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else if (file->f_mode & FMODE_WRITE)
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val = woinst->format.channels;
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|
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return put_user(val, p);
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}
|
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break;
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case SNDCTL_DSP_GETFMTS:
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DPF(2, "SNDCTL_DSP_GETFMTS:\n");
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|
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if (file->f_mode & FMODE_READ)
|
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val = AFMT_S16_LE;
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|
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,
|
|
};
|