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phoenix |
/* $Id: audio.c,v 1.1.1.1 2004-04-15 02:07:33 phoenix Exp $
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* drivers/sbus/audio/audio.c
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*
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* Copyright 1996 Thomas K. Dyas (tdyas@noc.rutgers.edu)
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* Copyright 1997,1998,1999 Derrick J. Brashear (shadow@dementia.org)
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* Copyright 1997 Brent Baccala (baccala@freesoft.org)
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*
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* Mixer code adapted from code contributed by and
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* Copyright 1998 Michael Mraka (michael@fi.muni.cz)
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* and with fixes from Michael Shuey (shuey@ecn.purdue.edu)
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* The mixer code cheats; Sparc hardware doesn't generally allow independent
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* line control, and this fakes it badly.
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*
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* SNDCTL_DSP_SETFMT based on code contributed by
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* Ion Badulescu (ionut@moisil.cs.columbia.edu)
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*
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* This is the audio midlayer that sits between the VFS character
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* devices and the low-level audio hardware device drivers.
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*/
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/fs.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/smp_lock.h>
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#include <linux/mm.h>
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#include <linux/tqueue.h>
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#include <linux/major.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/soundcard.h>
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#include <linux/devfs_fs_kernel.h>
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#include <linux/delay.h>
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#include <linux/poll.h>
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#include <asm/pgtable.h>
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#include <asm/uaccess.h>
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#include <asm/audioio.h>
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#undef __AUDIO_DEBUG
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#define __AUDIO_ERROR
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#undef __AUDIO_TRACE
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#undef __AUDIO_OSSDEBUG
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#ifdef __AUDIO_DEBUG
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#define dprintk(x) printk x
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#else
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#define dprintk(x)
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#endif
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#ifdef __AUDIO_OSSDEBUG
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#define oprintk(x) printk x
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#else
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#define oprintk(x)
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#endif
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#ifdef __AUDIO_ERROR
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#define eprintk(x) printk x
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#else
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#define eprintk(x)
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#endif
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#ifdef __AUDIO_TRACE
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#define tprintk(x) printk x
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#else
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#define tprintk(x)
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#endif
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static short lis_get_elist_ent( strevent_t *list, pid_t pid );
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static int lis_add_to_elist( strevent_t **list, pid_t pid, short events );
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static int lis_del_from_elist( strevent_t **list, pid_t pid, short events );
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static void lis_free_elist( strevent_t **list);
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static void kill_procs( struct strevent *elist, int sig, short e);
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static struct sparcaudio_driver *drivers[SPARCAUDIO_MAX_DEVICES];
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static devfs_handle_t devfs_handle;
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void sparcaudio_output_done(struct sparcaudio_driver * drv, int status)
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{
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/* If !status, just restart current output.
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* If status & 1, a buffer is finished; make it available again.
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* If status & 2, a buffer was claimed for DMA and is still in use.
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*
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* The playing_count for non-DMA hardware should never be non-zero.
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* Value of status for non-DMA hardware should always be 1.
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*/
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if (status & 1) {
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if (drv->playing_count) {
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drv->playing_count--;
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} else {
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drv->output_count--;
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drv->output_size -= drv->output_sizes[drv->output_front];
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if (drv->output_notify[drv->output_front] == 1) {
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drv->output_eof++;
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drv->output_notify[drv->output_front] = 0;
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kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
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}
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drv->output_front = (drv->output_front + 1) %
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drv->num_output_buffers;
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}
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}
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if (status & 2) {
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drv->output_count--;
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drv->playing_count++;
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drv->output_size -= drv->output_sizes[drv->output_front];
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if (drv->output_notify[drv->output_front] == 1) {
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drv->output_eof++;
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drv->output_notify[drv->output_front] = 0;
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kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
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}
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drv->output_front = (drv->output_front + 1) %
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drv->num_output_buffers;
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}
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/* If we've played everything go inactive. */
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if ((drv->output_count < 1) && (drv->playing_count < 1))
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drv->output_active = 0;
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/* If we got back a buffer, see if anyone wants to write to it */
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if ((status & 1) || ((drv->output_count + drv->playing_count)
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< drv->num_output_buffers)) {
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wake_up_interruptible(&drv->output_write_wait);
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}
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/* If the output queue is empty, shut down the driver. */
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if ((drv->output_count < 1) && (drv->playing_count < 1)) {
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kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
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/* Stop the lowlevel driver from outputing. */
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/* drv->ops->stop_output(drv); Should not be necessary -- DJB 5/25/98 */
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drv->output_active = 0;
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/* Wake up any waiting writers or syncers and return. */
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wake_up_interruptible(&drv->output_write_wait);
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wake_up_interruptible(&drv->output_drain_wait);
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return;
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}
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/* Start next block of output if we have it */
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if (drv->output_count > 0) {
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drv->ops->start_output(drv, drv->output_buffers[drv->output_front],
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drv->output_sizes[drv->output_front]);
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drv->output_active = 1;
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} else {
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drv->output_active = 0;
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}
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}
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void sparcaudio_input_done(struct sparcaudio_driver * drv, int status)
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{
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/* Deal with the weird case here */
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if (drv->duplex == 2) {
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if (drv->input_count < drv->num_input_buffers)
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drv->input_count++;
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drv->ops->start_input(drv, drv->input_buffers[drv->input_front],
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drv->input_buffer_size);
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wake_up_interruptible(&drv->input_read_wait);
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return;
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}
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/* If status % 2, they filled a buffer for us.
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* If status & 2, they took a buffer from us.
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*/
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if ((status % 2) == 1) {
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drv->input_count++;
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drv->recording_count--;
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drv->input_size+=drv->input_buffer_size;
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}
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if (status > 1) {
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drv->recording_count++;
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drv->input_front = (drv->input_front + 1) % drv->num_input_buffers;
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}
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dprintk(("f%d r%d c%d u%d\n",
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drv->input_front, drv->input_rear,
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drv->input_count, drv->recording_count));
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/* If the input queue is full, shutdown the driver. */
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if ((drv->input_count + drv->recording_count) == drv->num_input_buffers) {
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kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
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/* Stop the lowlevel driver from inputing. */
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drv->ops->stop_input(drv);
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drv->input_active = 0;
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} else {
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/* Otherwise, give the driver the next buffer. */
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drv->ops->start_input(drv, drv->input_buffers[drv->input_front],
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drv->input_buffer_size);
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}
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/* Wake up any tasks that are waiting. */
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wake_up_interruptible(&drv->input_read_wait);
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}
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/*
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* VFS layer interface
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*/
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static unsigned int sparcaudio_poll(struct file *file, poll_table * wait)
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{
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unsigned int mask = 0;
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struct inode *inode = file->f_dentry->d_inode;
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struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
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SPARCAUDIO_DEVICE_SHIFT)];
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poll_wait(file, &drv->input_read_wait, wait);
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poll_wait(file, &drv->output_write_wait, wait);
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if (((!file->f_flags & O_NONBLOCK) && drv->input_count) ||
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(drv->input_size > drv->buffer_size)) {
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mask |= POLLIN | POLLRDNORM;
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}
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if ((drv->output_count + drv->playing_count) < (drv->num_output_buffers)) {
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mask |= POLLOUT | POLLWRNORM;
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}
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return mask;
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}
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static ssize_t sparcaudio_read(struct file * file, char *buf,
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size_t count, loff_t *ppos)
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{
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struct inode *inode = file->f_dentry->d_inode;
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struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
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SPARCAUDIO_DEVICE_SHIFT)];
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int bytes_to_copy, bytes_read = 0, err;
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if (! (file->f_mode & FMODE_READ))
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return -EINVAL;
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if ((file->f_flags & O_NONBLOCK) && (drv->input_size < count))
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return -EAGAIN;
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while (count > 0) {
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if (drv->input_count == 0) {
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/* This *should* never happen. */
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if (file->f_flags & O_NONBLOCK) {
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printk("Warning: audio input leak!\n");
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return -EAGAIN;
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}
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interruptible_sleep_on(&drv->input_read_wait);
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if (signal_pending(current))
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return -EINTR;
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}
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bytes_to_copy = drv->input_buffer_size - drv->input_offset;
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if (bytes_to_copy > count)
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bytes_to_copy = count;
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err = verify_area(VERIFY_WRITE, buf, bytes_to_copy);
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if (err)
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return err;
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copy_to_user(buf, drv->input_buffers[drv->input_rear]+drv->input_offset,
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bytes_to_copy);
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drv->input_offset += bytes_to_copy;
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drv->input_size -= bytes_to_copy;
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buf += bytes_to_copy;
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count -= bytes_to_copy;
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bytes_read += bytes_to_copy;
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if (drv->input_offset >= drv->input_buffer_size) {
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drv->input_rear = (drv->input_rear + 1) %
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drv->num_input_buffers;
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drv->input_count--;
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drv->input_offset = 0;
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}
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/* If we're in "loop audio" mode, try waking up the other side
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* in case they're waiting for us to eat a block.
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*/
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if (drv->duplex == 2)
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wake_up_interruptible(&drv->output_write_wait);
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}
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return bytes_read;
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}
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280 |
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static void sparcaudio_sync_output(struct sparcaudio_driver * drv)
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{
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unsigned long flags;
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283 |
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284 |
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/* If the low-level driver is not active, activate it. */
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save_and_cli(flags);
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if ((!drv->output_active) && (drv->output_count > 0)) {
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drv->ops->start_output(drv,
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drv->output_buffers[drv->output_front],
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drv->output_sizes[drv->output_front]);
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drv->output_active = 1;
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}
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restore_flags(flags);
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}
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294 |
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295 |
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static ssize_t sparcaudio_write(struct file * file, const char *buf,
|
296 |
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size_t count, loff_t *ppos)
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297 |
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{
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298 |
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struct inode *inode = file->f_dentry->d_inode;
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299 |
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struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
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SPARCAUDIO_DEVICE_SHIFT)];
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int bytes_written = 0, bytes_to_copy, err;
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302 |
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303 |
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if (! (file->f_mode & FMODE_WRITE))
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304 |
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return -EINVAL;
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305 |
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306 |
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/* A signal they want notification when this is processed. Too bad
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307 |
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* sys_write doesn't tell us unless you patch it, in 2.0 kernels.
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*/
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309 |
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if (count == 0) {
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310 |
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#ifndef notdef
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311 |
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drv->output_eof++;
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312 |
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kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
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313 |
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#else
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/* Nice code, but the world isn't ready yet... */
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315 |
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drv->output_notify[drv->output_rear] = 1;
|
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#endif
|
317 |
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}
|
318 |
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|
319 |
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/* Loop until all output is written to device. */
|
320 |
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while (count > 0) {
|
321 |
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/* Check to make sure that an output buffer is available. */
|
322 |
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if (drv->num_output_buffers == (drv->output_count+drv->playing_count)) {
|
323 |
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/* We need buffers, so... */
|
324 |
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sparcaudio_sync_output(drv);
|
325 |
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if (file->f_flags & O_NONBLOCK)
|
326 |
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return -EAGAIN;
|
327 |
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|
328 |
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interruptible_sleep_on(&drv->output_write_wait);
|
329 |
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if (signal_pending(current))
|
330 |
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return bytes_written > 0 ? bytes_written : -EINTR;
|
331 |
|
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}
|
332 |
|
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|
333 |
|
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/* No buffers were freed. Go back to sleep */
|
334 |
|
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if (drv->num_output_buffers == (drv->output_count+drv->playing_count))
|
335 |
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continue;
|
336 |
|
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|
337 |
|
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/* Deal with the weird case of a reader in the write area by trying to
|
338 |
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* let them keep ahead of us... Go to sleep until they start servicing.
|
339 |
|
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*/
|
340 |
|
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if ((drv->duplex == 2) && (drv->flags & SDF_OPEN_READ) &&
|
341 |
|
|
(drv->output_rear == drv->input_rear) && (drv->input_count > 0)) {
|
342 |
|
|
if (file->f_flags & O_NONBLOCK)
|
343 |
|
|
return -EAGAIN;
|
344 |
|
|
|
345 |
|
|
interruptible_sleep_on(&drv->output_write_wait);
|
346 |
|
|
if (signal_pending(current))
|
347 |
|
|
return bytes_written > 0 ? bytes_written : -EINTR;
|
348 |
|
|
}
|
349 |
|
|
|
350 |
|
|
/* Determine how much we can copy in this iteration. */
|
351 |
|
|
bytes_to_copy = count;
|
352 |
|
|
if (bytes_to_copy > drv->output_buffer_size - drv->output_offset)
|
353 |
|
|
bytes_to_copy = drv->output_buffer_size - drv->output_offset;
|
354 |
|
|
|
355 |
|
|
err = verify_area(VERIFY_READ, buf, bytes_to_copy);
|
356 |
|
|
if (err)
|
357 |
|
|
return err;
|
358 |
|
|
|
359 |
|
|
copy_from_user(drv->output_buffers[drv->output_rear]+drv->output_offset,
|
360 |
|
|
buf, bytes_to_copy);
|
361 |
|
|
|
362 |
|
|
/* Update the queue pointers. */
|
363 |
|
|
buf += bytes_to_copy;
|
364 |
|
|
count -= bytes_to_copy;
|
365 |
|
|
bytes_written += bytes_to_copy;
|
366 |
|
|
|
367 |
|
|
/* A block can get orphaned in a flush and not cleaned up. */
|
368 |
|
|
if (drv->output_offset)
|
369 |
|
|
drv->output_sizes[drv->output_rear] += bytes_to_copy;
|
370 |
|
|
else
|
371 |
|
|
drv->output_sizes[drv->output_rear] = bytes_to_copy;
|
372 |
|
|
|
373 |
|
|
drv->output_notify[drv->output_rear] = 0;
|
374 |
|
|
|
375 |
|
|
if (drv->output_sizes[drv->output_rear] == drv->output_buffer_size) {
|
376 |
|
|
drv->output_rear = (drv->output_rear + 1)
|
377 |
|
|
% drv->num_output_buffers;
|
378 |
|
|
drv->output_count++;
|
379 |
|
|
drv->output_offset = 0;
|
380 |
|
|
} else {
|
381 |
|
|
drv->output_offset += bytes_to_copy;
|
382 |
|
|
}
|
383 |
|
|
|
384 |
|
|
drv->output_size += bytes_to_copy;
|
385 |
|
|
}
|
386 |
|
|
|
387 |
|
|
sparcaudio_sync_output(drv);
|
388 |
|
|
|
389 |
|
|
/* Return the number of bytes written to the caller. */
|
390 |
|
|
return bytes_written;
|
391 |
|
|
}
|
392 |
|
|
|
393 |
|
|
/* Add these in as new devices are supported. Belongs in audioio.h, actually */
|
394 |
|
|
#define MONO_DEVICES (SOUND_MASK_SPEAKER | SOUND_MASK_MIC)
|
395 |
|
|
|
396 |
|
|
static int sparcaudio_mixer_ioctl(struct inode * inode, struct file * file,
|
397 |
|
|
unsigned int cmd, unsigned int *arg)
|
398 |
|
|
{
|
399 |
|
|
struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
|
400 |
|
|
SPARCAUDIO_DEVICE_SHIFT)];
|
401 |
|
|
unsigned long i = 0, j = 0, l = 0, m = 0;
|
402 |
|
|
unsigned int k = 0;
|
403 |
|
|
|
404 |
|
|
if (_SIOC_DIR(cmd) & _SIOC_WRITE)
|
405 |
|
|
drv->mixer_modify_counter++;
|
406 |
|
|
|
407 |
|
|
if(cmd == SOUND_MIXER_INFO) {
|
408 |
|
|
audio_device_t tmp;
|
409 |
|
|
mixer_info info;
|
410 |
|
|
int retval = -EINVAL;
|
411 |
|
|
|
412 |
|
|
if(drv->ops->sunaudio_getdev) {
|
413 |
|
|
drv->ops->sunaudio_getdev(drv, &tmp);
|
414 |
|
|
memset(&info, 0, sizeof(info));
|
415 |
|
|
strncpy(info.id, tmp.name, sizeof(info.id));
|
416 |
|
|
strncpy(info.name, "Sparc Audio", sizeof(info.name));
|
417 |
|
|
info.modify_counter = drv->mixer_modify_counter;
|
418 |
|
|
|
419 |
|
|
if(copy_to_user((char *)arg, &info, sizeof(info)))
|
420 |
|
|
retval = -EFAULT;
|
421 |
|
|
else
|
422 |
|
|
retval = 0;
|
423 |
|
|
}
|
424 |
|
|
return retval;
|
425 |
|
|
}
|
426 |
|
|
|
427 |
|
|
switch (cmd) {
|
428 |
|
|
case SOUND_MIXER_WRITE_RECLEV:
|
429 |
|
|
if (get_user(k, (int *)arg))
|
430 |
|
|
return -EFAULT;
|
431 |
|
|
iretry:
|
432 |
|
|
oprintk(("setting input volume (0x%x)", k));
|
433 |
|
|
if (drv->ops->get_input_channels)
|
434 |
|
|
j = drv->ops->get_input_channels(drv);
|
435 |
|
|
if (drv->ops->get_input_volume)
|
436 |
|
|
l = drv->ops->get_input_volume(drv);
|
437 |
|
|
if (drv->ops->get_input_balance)
|
438 |
|
|
m = drv->ops->get_input_balance(drv);
|
439 |
|
|
i = OSS_TO_GAIN(k);
|
440 |
|
|
j = OSS_TO_BAL(k);
|
441 |
|
|
oprintk((" for stereo to do %d (bal %d):", i, j));
|
442 |
|
|
if (drv->ops->set_input_volume)
|
443 |
|
|
drv->ops->set_input_volume(drv, i);
|
444 |
|
|
if (drv->ops->set_input_balance)
|
445 |
|
|
drv->ops->set_input_balance(drv, j);
|
446 |
|
|
case SOUND_MIXER_READ_RECLEV:
|
447 |
|
|
if (drv->ops->get_input_volume)
|
448 |
|
|
i = drv->ops->get_input_volume(drv);
|
449 |
|
|
if (drv->ops->get_input_balance)
|
450 |
|
|
j = drv->ops->get_input_balance(drv);
|
451 |
|
|
oprintk((" got (0x%x)\n", BAL_TO_OSS(i,j)));
|
452 |
|
|
i = BAL_TO_OSS(i,j);
|
453 |
|
|
/* Try to be reasonable about volume changes */
|
454 |
|
|
if ((cmd == SOUND_MIXER_WRITE_RECLEV) && (i != k) &&
|
455 |
|
|
(i == BAL_TO_OSS(l,m))) {
|
456 |
|
|
k += (OSS_LEFT(k) > OSS_LEFT(i)) ? 256 : -256;
|
457 |
|
|
k += (OSS_RIGHT(k) > OSS_RIGHT(i)) ? 1 : -1;
|
458 |
|
|
oprintk((" try 0x%x\n", k));
|
459 |
|
|
goto iretry;
|
460 |
|
|
}
|
461 |
|
|
return put_user(i, (int *)arg);
|
462 |
|
|
case SOUND_MIXER_WRITE_VOLUME:
|
463 |
|
|
if (get_user(k, (int *)arg))
|
464 |
|
|
return -EFAULT;
|
465 |
|
|
if (drv->ops->get_output_muted && drv->ops->set_output_muted) {
|
466 |
|
|
i = drv->ops->get_output_muted(drv);
|
467 |
|
|
if ((k == 0) || ((i == 0) && (OSS_LEFT(k) < 100)))
|
468 |
|
|
drv->ops->set_output_muted(drv, 1);
|
469 |
|
|
else
|
470 |
|
|
drv->ops->set_output_muted(drv, 0);
|
471 |
|
|
}
|
472 |
|
|
case SOUND_MIXER_READ_VOLUME:
|
473 |
|
|
if (drv->ops->get_output_muted)
|
474 |
|
|
i = drv->ops->get_output_muted(drv);
|
475 |
|
|
k = 0x6464 * (1 - i);
|
476 |
|
|
return put_user(k, (int *)arg);
|
477 |
|
|
case SOUND_MIXER_WRITE_PCM:
|
478 |
|
|
if (get_user(k, (int *)arg))
|
479 |
|
|
return -EFAULT;
|
480 |
|
|
oretry:
|
481 |
|
|
oprintk(("setting output volume (0x%x)\n", k));
|
482 |
|
|
if (drv->ops->get_output_channels)
|
483 |
|
|
j = drv->ops->get_output_channels(drv);
|
484 |
|
|
if (drv->ops->get_output_volume)
|
485 |
|
|
l = drv->ops->get_output_volume(drv);
|
486 |
|
|
if (drv->ops->get_output_balance)
|
487 |
|
|
m = drv->ops->get_output_balance(drv);
|
488 |
|
|
oprintk((" started as (0x%x)\n", BAL_TO_OSS(l,m)));
|
489 |
|
|
i = OSS_TO_GAIN(k);
|
490 |
|
|
j = OSS_TO_BAL(k);
|
491 |
|
|
oprintk((" for stereo to %d (bal %d)\n", i, j));
|
492 |
|
|
if (drv->ops->set_output_volume)
|
493 |
|
|
drv->ops->set_output_volume(drv, i);
|
494 |
|
|
if (drv->ops->set_output_balance)
|
495 |
|
|
drv->ops->set_output_balance(drv, j);
|
496 |
|
|
case SOUND_MIXER_READ_PCM:
|
497 |
|
|
if (drv->ops->get_output_volume)
|
498 |
|
|
i = drv->ops->get_output_volume(drv);
|
499 |
|
|
if (drv->ops->get_output_balance)
|
500 |
|
|
j = drv->ops->get_output_balance(drv);
|
501 |
|
|
oprintk((" got 0x%x\n", BAL_TO_OSS(i,j)));
|
502 |
|
|
i = BAL_TO_OSS(i,j);
|
503 |
|
|
|
504 |
|
|
/* Try to be reasonable about volume changes */
|
505 |
|
|
if ((cmd == SOUND_MIXER_WRITE_PCM) && (i != k) &&
|
506 |
|
|
(i == BAL_TO_OSS(l,m))) {
|
507 |
|
|
k += (OSS_LEFT(k) > OSS_LEFT(i)) ? 256 : -256;
|
508 |
|
|
k += (OSS_RIGHT(k) > OSS_RIGHT(i)) ? 1 : -1;
|
509 |
|
|
oprintk((" try 0x%x\n", k));
|
510 |
|
|
goto oretry;
|
511 |
|
|
}
|
512 |
|
|
return put_user(i, (int *)arg);
|
513 |
|
|
case SOUND_MIXER_READ_SPEAKER:
|
514 |
|
|
k = OSS_PORT_AUDIO(drv, AUDIO_SPEAKER);
|
515 |
|
|
return put_user(k, (int *)arg);
|
516 |
|
|
case SOUND_MIXER_READ_MIC:
|
517 |
|
|
k = OSS_IPORT_AUDIO(drv, AUDIO_MICROPHONE);
|
518 |
|
|
return put_user(k, (int *)arg);
|
519 |
|
|
case SOUND_MIXER_READ_CD:
|
520 |
|
|
k = OSS_IPORT_AUDIO(drv, AUDIO_CD);
|
521 |
|
|
return put_user(k, (int *)arg);
|
522 |
|
|
case SOUND_MIXER_READ_LINE:
|
523 |
|
|
k = OSS_IPORT_AUDIO(drv, AUDIO_LINE_IN);
|
524 |
|
|
return put_user(k, (int *)arg);
|
525 |
|
|
case SOUND_MIXER_READ_LINE1:
|
526 |
|
|
k = OSS_PORT_AUDIO(drv, AUDIO_HEADPHONE);
|
527 |
|
|
return put_user(k, (int *)arg);
|
528 |
|
|
case SOUND_MIXER_READ_LINE2:
|
529 |
|
|
k = OSS_PORT_AUDIO(drv, AUDIO_LINE_OUT);
|
530 |
|
|
return put_user(k, (int *)arg);
|
531 |
|
|
|
532 |
|
|
case SOUND_MIXER_WRITE_MIC:
|
533 |
|
|
case SOUND_MIXER_WRITE_CD:
|
534 |
|
|
case SOUND_MIXER_WRITE_LINE:
|
535 |
|
|
case SOUND_MIXER_WRITE_LINE1:
|
536 |
|
|
case SOUND_MIXER_WRITE_LINE2:
|
537 |
|
|
case SOUND_MIXER_WRITE_SPEAKER:
|
538 |
|
|
if (get_user(k, (int *)arg))
|
539 |
|
|
return -EFAULT;
|
540 |
|
|
OSS_TWIDDLE_IPORT(drv, cmd, SOUND_MIXER_WRITE_LINE, AUDIO_LINE_IN, k);
|
541 |
|
|
OSS_TWIDDLE_IPORT(drv, cmd, SOUND_MIXER_WRITE_MIC, AUDIO_MICROPHONE, k);
|
542 |
|
|
OSS_TWIDDLE_IPORT(drv, cmd, SOUND_MIXER_WRITE_CD, AUDIO_CD, k);
|
543 |
|
|
|
544 |
|
|
OSS_TWIDDLE_PORT(drv, cmd, SOUND_MIXER_WRITE_SPEAKER, AUDIO_SPEAKER, k);
|
545 |
|
|
OSS_TWIDDLE_PORT(drv, cmd, SOUND_MIXER_WRITE_LINE1, AUDIO_HEADPHONE, k);
|
546 |
|
|
OSS_TWIDDLE_PORT(drv, cmd, SOUND_MIXER_WRITE_LINE2, AUDIO_LINE_OUT, k);
|
547 |
|
|
return put_user(k, (int *)arg);
|
548 |
|
|
case SOUND_MIXER_READ_RECSRC:
|
549 |
|
|
if (drv->ops->get_input_port)
|
550 |
|
|
i = drv->ops->get_input_port(drv);
|
551 |
|
|
|
552 |
|
|
/* only one should ever be selected */
|
553 |
|
|
if (i & AUDIO_CD) j = SOUND_MASK_CD;
|
554 |
|
|
if (i & AUDIO_LINE_IN) j = SOUND_MASK_LINE;
|
555 |
|
|
if (i & AUDIO_MICROPHONE) j = SOUND_MASK_MIC;
|
556 |
|
|
|
557 |
|
|
return put_user(j, (int *)arg);
|
558 |
|
|
case SOUND_MIXER_WRITE_RECSRC:
|
559 |
|
|
if (!drv->ops->set_input_port)
|
560 |
|
|
return -EINVAL;
|
561 |
|
|
if (get_user(k, (int *)arg))
|
562 |
|
|
return -EFAULT;
|
563 |
|
|
|
564 |
|
|
/* only one should ever be selected */
|
565 |
|
|
if (k & SOUND_MASK_CD) j = AUDIO_CD;
|
566 |
|
|
if (k & SOUND_MASK_LINE) j = AUDIO_LINE_IN;
|
567 |
|
|
if (k & SOUND_MASK_MIC) j = AUDIO_MICROPHONE;
|
568 |
|
|
oprintk(("setting inport to %d\n", j));
|
569 |
|
|
i = drv->ops->set_input_port(drv, j);
|
570 |
|
|
|
571 |
|
|
return put_user(i, (int *)arg);
|
572 |
|
|
case SOUND_MIXER_READ_RECMASK:
|
573 |
|
|
if (drv->ops->get_input_ports)
|
574 |
|
|
i = drv->ops->get_input_ports(drv);
|
575 |
|
|
/* what do we support? */
|
576 |
|
|
if (i & AUDIO_MICROPHONE) j |= SOUND_MASK_MIC;
|
577 |
|
|
if (i & AUDIO_LINE_IN) j |= SOUND_MASK_LINE;
|
578 |
|
|
if (i & AUDIO_CD) j |= SOUND_MASK_CD;
|
579 |
|
|
|
580 |
|
|
return put_user(j, (int *)arg);
|
581 |
|
|
case SOUND_MIXER_READ_CAPS: /* mixer capabilities */
|
582 |
|
|
i = SOUND_CAP_EXCL_INPUT;
|
583 |
|
|
return put_user(i, (int *)arg);
|
584 |
|
|
|
585 |
|
|
case SOUND_MIXER_READ_DEVMASK: /* all supported devices */
|
586 |
|
|
if (drv->ops->get_input_ports)
|
587 |
|
|
i = drv->ops->get_input_ports(drv);
|
588 |
|
|
/* what do we support? */
|
589 |
|
|
if (i & AUDIO_MICROPHONE) j |= SOUND_MASK_MIC;
|
590 |
|
|
if (i & AUDIO_LINE_IN) j |= SOUND_MASK_LINE;
|
591 |
|
|
if (i & AUDIO_CD) j |= SOUND_MASK_CD;
|
592 |
|
|
|
593 |
|
|
if (drv->ops->get_output_ports)
|
594 |
|
|
i = drv->ops->get_output_ports(drv);
|
595 |
|
|
if (i & AUDIO_SPEAKER) j |= SOUND_MASK_SPEAKER;
|
596 |
|
|
if (i & AUDIO_HEADPHONE) j |= SOUND_MASK_LINE1;
|
597 |
|
|
if (i & AUDIO_LINE_OUT) j |= SOUND_MASK_LINE2;
|
598 |
|
|
|
599 |
|
|
j |= SOUND_MASK_VOLUME;
|
600 |
|
|
|
601 |
|
|
case SOUND_MIXER_READ_STEREODEVS: /* what supports stereo */
|
602 |
|
|
j |= SOUND_MASK_PCM|SOUND_MASK_RECLEV;
|
603 |
|
|
|
604 |
|
|
if (cmd == SOUND_MIXER_READ_STEREODEVS)
|
605 |
|
|
j &= ~(MONO_DEVICES);
|
606 |
|
|
return put_user(j, (int *)arg);
|
607 |
|
|
default:
|
608 |
|
|
return -EINVAL;
|
609 |
|
|
};
|
610 |
|
|
}
|
611 |
|
|
|
612 |
|
|
/* AUDIO_SETINFO uses these to set values if possible. */
|
613 |
|
|
static __inline__ int
|
614 |
|
|
__sparcaudio_if_set_do(struct sparcaudio_driver *drv,
|
615 |
|
|
int (*set_function)(struct sparcaudio_driver *, int),
|
616 |
|
|
int (*get_function)(struct sparcaudio_driver *),
|
617 |
|
|
unsigned int value)
|
618 |
|
|
{
|
619 |
|
|
if (set_function && Modify(value))
|
620 |
|
|
return (int) set_function(drv, value);
|
621 |
|
|
else if (get_function)
|
622 |
|
|
return (int) get_function(drv);
|
623 |
|
|
else
|
624 |
|
|
return 0;
|
625 |
|
|
}
|
626 |
|
|
|
627 |
|
|
static __inline__ int
|
628 |
|
|
__sparcaudio_if_setc_do(struct sparcaudio_driver *drv,
|
629 |
|
|
int (*set_function)(struct sparcaudio_driver *, int),
|
630 |
|
|
int (*get_function)(struct sparcaudio_driver *),
|
631 |
|
|
unsigned char value)
|
632 |
|
|
{
|
633 |
|
|
if (set_function && Modifyc(value))
|
634 |
|
|
return (char) set_function(drv, (int)value);
|
635 |
|
|
else if (get_function)
|
636 |
|
|
return (char) get_function(drv);
|
637 |
|
|
else
|
638 |
|
|
return 0;
|
639 |
|
|
}
|
640 |
|
|
|
641 |
|
|
/* I_FLUSH, I_{G,S}ETSIG, I_NREAD provided for SunOS compatibility
|
642 |
|
|
*
|
643 |
|
|
* I must admit I'm quite ashamed of the state of the ioctl handling,
|
644 |
|
|
* but I do have several optimizations which I'm planning. -- DJB
|
645 |
|
|
*/
|
646 |
|
|
static int sparcaudio_ioctl(struct inode * inode, struct file * file,
|
647 |
|
|
unsigned int cmd, unsigned long arg)
|
648 |
|
|
{
|
649 |
|
|
int retval = 0, i, j, k;
|
650 |
|
|
int minor = MINOR(inode->i_rdev);
|
651 |
|
|
struct audio_info ainfo;
|
652 |
|
|
audio_buf_info binfo;
|
653 |
|
|
count_info cinfo;
|
654 |
|
|
struct sparcaudio_driver *drv =
|
655 |
|
|
drivers[(minor >> SPARCAUDIO_DEVICE_SHIFT)];
|
656 |
|
|
|
657 |
|
|
switch (minor & 0xf) {
|
658 |
|
|
case SPARCAUDIO_MIXER_MINOR:
|
659 |
|
|
return sparcaudio_mixer_ioctl(inode, file, cmd, (unsigned int *)arg);
|
660 |
|
|
case SPARCAUDIO_DSP16_MINOR:
|
661 |
|
|
case SPARCAUDIO_DSP_MINOR:
|
662 |
|
|
case SPARCAUDIO_AUDIO_MINOR:
|
663 |
|
|
case SPARCAUDIO_AUDIOCTL_MINOR:
|
664 |
|
|
/* According to the OSS prog int, you can mixer ioctl /dev/dsp */
|
665 |
|
|
if (_IOC_TYPE(cmd) == 'M')
|
666 |
|
|
return sparcaudio_mixer_ioctl(inode,
|
667 |
|
|
file, cmd, (unsigned int *)arg);
|
668 |
|
|
switch (cmd) {
|
669 |
|
|
case I_GETSIG:
|
670 |
|
|
case I_GETSIG_SOLARIS:
|
671 |
|
|
j = (int) lis_get_elist_ent(drv->sd_siglist,current->pid);
|
672 |
|
|
put_user(j, (int *)arg);
|
673 |
|
|
retval = drv->input_count;
|
674 |
|
|
break;
|
675 |
|
|
|
676 |
|
|
case I_SETSIG:
|
677 |
|
|
case I_SETSIG_SOLARIS:
|
678 |
|
|
if ((minor & 0xf) == SPARCAUDIO_AUDIOCTL_MINOR) {
|
679 |
|
|
if (!arg) {
|
680 |
|
|
if (lis_del_from_elist(&(drv->sd_siglist),
|
681 |
|
|
current->pid,S_ALL)) {
|
682 |
|
|
retval = -EINVAL;
|
683 |
|
|
} else if (!drv->sd_siglist) {
|
684 |
|
|
drv->sd_sigflags=0;
|
685 |
|
|
}
|
686 |
|
|
} else if (lis_add_to_elist(&(drv->sd_siglist),
|
687 |
|
|
current->pid,
|
688 |
|
|
(short)arg)) {
|
689 |
|
|
retval = -EAGAIN;
|
690 |
|
|
} else {
|
691 |
|
|
((drv->sd_sigflags) |= (arg));
|
692 |
|
|
}
|
693 |
|
|
}
|
694 |
|
|
break;
|
695 |
|
|
case I_NREAD:
|
696 |
|
|
case I_NREAD_SOLARIS:
|
697 |
|
|
/* According to the Solaris man page, this copies out
|
698 |
|
|
* the size of the first streams buffer and returns
|
699 |
|
|
* the number of streams messages on the read queue as
|
700 |
|
|
* as its retval. (streamio(7I)) This should work.
|
701 |
|
|
*/
|
702 |
|
|
j = (drv->input_count > 0) ? drv->input_buffer_size : 0;
|
703 |
|
|
put_user(j, (int *)arg);
|
704 |
|
|
retval = drv->input_count;
|
705 |
|
|
break;
|
706 |
|
|
|
707 |
|
|
/* A poor substitute until we do true resizable buffers. */
|
708 |
|
|
case SNDCTL_DSP_GETISPACE:
|
709 |
|
|
binfo.fragstotal = drv->num_input_buffers;
|
710 |
|
|
binfo.fragments = drv->num_input_buffers -
|
711 |
|
|
(drv->input_count + drv->recording_count);
|
712 |
|
|
binfo.fragsize = drv->input_buffer_size;
|
713 |
|
|
binfo.bytes = binfo.fragments*binfo.fragsize;
|
714 |
|
|
|
715 |
|
|
retval = verify_area(VERIFY_WRITE, (int *)arg, sizeof(binfo));
|
716 |
|
|
if (retval)
|
717 |
|
|
break;
|
718 |
|
|
copy_to_user(&((char *)arg)[0], (char *)&binfo, sizeof(binfo));
|
719 |
|
|
break;
|
720 |
|
|
case SNDCTL_DSP_GETOSPACE:
|
721 |
|
|
binfo.fragstotal = drv->num_output_buffers;
|
722 |
|
|
binfo.fragments = drv->num_output_buffers -
|
723 |
|
|
(drv->output_count + drv->playing_count +
|
724 |
|
|
(drv->output_offset ? 1 : 0));
|
725 |
|
|
binfo.fragsize = drv->output_buffer_size;
|
726 |
|
|
binfo.bytes = binfo.fragments*binfo.fragsize +
|
727 |
|
|
(drv->output_buffer_size - drv->output_offset);
|
728 |
|
|
|
729 |
|
|
retval = verify_area(VERIFY_WRITE, (int *)arg, sizeof(binfo));
|
730 |
|
|
if (retval)
|
731 |
|
|
break;
|
732 |
|
|
copy_to_user(&((char *)arg)[0], (char *)&binfo, sizeof(binfo));
|
733 |
|
|
break;
|
734 |
|
|
case SNDCTL_DSP_GETIPTR:
|
735 |
|
|
case SNDCTL_DSP_GETOPTR:
|
736 |
|
|
/* int bytes (number of bytes read/written since last)
|
737 |
|
|
* int blocks (number of frags read/wrote since last call)
|
738 |
|
|
* int ptr (current position of dma in buffer)
|
739 |
|
|
*/
|
740 |
|
|
retval = 0;
|
741 |
|
|
cinfo.bytes = 0;
|
742 |
|
|
cinfo.ptr = 0;
|
743 |
|
|
cinfo.blocks = 0;
|
744 |
|
|
cinfo.bytes += cinfo.ptr;
|
745 |
|
|
|
746 |
|
|
retval = verify_area(VERIFY_WRITE, (int *)arg, sizeof(cinfo));
|
747 |
|
|
if (retval)
|
748 |
|
|
break;
|
749 |
|
|
copy_to_user(&((char *)arg)[0], (char *)&cinfo, sizeof(cinfo));
|
750 |
|
|
break;
|
751 |
|
|
case SNDCTL_DSP_SETFRAGMENT:
|
752 |
|
|
/* XXX Small hack to get ESD/Enlightenment to work. --DaveM */
|
753 |
|
|
retval = 0;
|
754 |
|
|
break;
|
755 |
|
|
|
756 |
|
|
case SNDCTL_DSP_SUBDIVIDE:
|
757 |
|
|
/* I don't understand what I need to do yet. */
|
758 |
|
|
retval = -EINVAL;
|
759 |
|
|
break;
|
760 |
|
|
case SNDCTL_DSP_SETTRIGGER:
|
761 |
|
|
/* This may not be 100% correct */
|
762 |
|
|
if ((arg & PCM_ENABLE_INPUT) && drv->ops->get_input_pause &&
|
763 |
|
|
drv->ops->set_input_pause) {
|
764 |
|
|
if (drv->ops->get_input_pause(drv))
|
765 |
|
|
drv->ops->set_input_pause(drv, 0);
|
766 |
|
|
} else {
|
767 |
|
|
if (!drv->ops->get_input_pause(drv))
|
768 |
|
|
drv->ops->set_input_pause(drv, 1);
|
769 |
|
|
}
|
770 |
|
|
if ((arg & PCM_ENABLE_OUTPUT) && drv->ops->get_output_pause &&
|
771 |
|
|
drv->ops->set_output_pause) {
|
772 |
|
|
if (drv->ops->get_output_pause(drv))
|
773 |
|
|
drv->ops->set_output_pause(drv, 0);
|
774 |
|
|
} else {
|
775 |
|
|
if (!drv->ops->get_output_pause(drv))
|
776 |
|
|
drv->ops->set_output_pause(drv, 1);
|
777 |
|
|
}
|
778 |
|
|
break;
|
779 |
|
|
case SNDCTL_DSP_GETTRIGGER:
|
780 |
|
|
j = 0;
|
781 |
|
|
if (drv->ops->get_input_pause) {
|
782 |
|
|
if (drv->ops->get_input_pause(drv))
|
783 |
|
|
j = PCM_ENABLE_INPUT;
|
784 |
|
|
}
|
785 |
|
|
if (drv->ops->get_output_pause) {
|
786 |
|
|
if (drv->ops->get_output_pause(drv))
|
787 |
|
|
j |= PCM_ENABLE_OUTPUT;
|
788 |
|
|
}
|
789 |
|
|
put_user(j, (int *)arg);
|
790 |
|
|
break;
|
791 |
|
|
case SNDCTL_DSP_GETBLKSIZE:
|
792 |
|
|
j = drv->input_buffer_size;
|
793 |
|
|
put_user(j, (int *)arg);
|
794 |
|
|
break;
|
795 |
|
|
case SNDCTL_DSP_SPEED:
|
796 |
|
|
if ((!drv->ops->set_output_rate) &&
|
797 |
|
|
(!drv->ops->set_input_rate)) {
|
798 |
|
|
retval = -EINVAL;
|
799 |
|
|
break;
|
800 |
|
|
}
|
801 |
|
|
get_user(i, (int *)arg)
|
802 |
|
|
tprintk(("setting speed to %d\n", i));
|
803 |
|
|
drv->ops->set_input_rate(drv, i);
|
804 |
|
|
drv->ops->set_output_rate(drv, i);
|
805 |
|
|
j = drv->ops->get_output_rate(drv);
|
806 |
|
|
put_user(j, (int *)arg);
|
807 |
|
|
break;
|
808 |
|
|
case SNDCTL_DSP_GETCAPS:
|
809 |
|
|
/* All Sparc audio hardware is full duplex.
|
810 |
|
|
* 4231 supports DMA pointer reading, 7930 is byte at a time.
|
811 |
|
|
* Pause functionality emulates trigger
|
812 |
|
|
*/
|
813 |
|
|
j = DSP_CAP_DUPLEX | DSP_CAP_TRIGGER | DSP_CAP_REALTIME;
|
814 |
|
|
put_user(j, (int *)arg);
|
815 |
|
|
break;
|
816 |
|
|
case SNDCTL_DSP_GETFMTS:
|
817 |
|
|
if (drv->ops->get_formats) {
|
818 |
|
|
j = drv->ops->get_formats(drv);
|
819 |
|
|
put_user(j, (int *)arg);
|
820 |
|
|
} else {
|
821 |
|
|
retval = -EINVAL;
|
822 |
|
|
}
|
823 |
|
|
break;
|
824 |
|
|
case SNDCTL_DSP_SETFMT:
|
825 |
|
|
/* need to decode into encoding, precision */
|
826 |
|
|
get_user(i, (int *)arg);
|
827 |
|
|
|
828 |
|
|
/* handle special case here */
|
829 |
|
|
if (i == AFMT_QUERY) {
|
830 |
|
|
j = drv->ops->get_output_encoding(drv);
|
831 |
|
|
k = drv->ops->get_output_precision(drv);
|
832 |
|
|
if (j == AUDIO_ENCODING_DVI) {
|
833 |
|
|
i = AFMT_IMA_ADPCM;
|
834 |
|
|
} else if (k == 8) {
|
835 |
|
|
switch (j) {
|
836 |
|
|
case AUDIO_ENCODING_ULAW:
|
837 |
|
|
i = AFMT_MU_LAW;
|
838 |
|
|
break;
|
839 |
|
|
case AUDIO_ENCODING_ALAW:
|
840 |
|
|
i = AFMT_A_LAW;
|
841 |
|
|
break;
|
842 |
|
|
case AUDIO_ENCODING_LINEAR8:
|
843 |
|
|
i = AFMT_U8;
|
844 |
|
|
break;
|
845 |
|
|
};
|
846 |
|
|
} else if (k == 16) {
|
847 |
|
|
switch (j) {
|
848 |
|
|
case AUDIO_ENCODING_LINEAR:
|
849 |
|
|
i = AFMT_S16_BE;
|
850 |
|
|
break;
|
851 |
|
|
case AUDIO_ENCODING_LINEARLE:
|
852 |
|
|
i = AFMT_S16_LE;
|
853 |
|
|
break;
|
854 |
|
|
};
|
855 |
|
|
}
|
856 |
|
|
put_user(i, (int *)arg);
|
857 |
|
|
break;
|
858 |
|
|
}
|
859 |
|
|
|
860 |
|
|
/* Without these there's no point in trying */
|
861 |
|
|
if (!drv->ops->set_input_precision ||
|
862 |
|
|
!drv->ops->set_input_encoding ||
|
863 |
|
|
!drv->ops->set_output_precision ||
|
864 |
|
|
!drv->ops->set_output_encoding) {
|
865 |
|
|
eprintk(("missing set routines: failed\n"));
|
866 |
|
|
retval = -EINVAL;
|
867 |
|
|
break;
|
868 |
|
|
}
|
869 |
|
|
|
870 |
|
|
if (drv->ops->get_formats) {
|
871 |
|
|
if (!(drv->ops->get_formats(drv) & i)) {
|
872 |
|
|
dprintk(("format not supported\n"));
|
873 |
|
|
return -EINVAL;
|
874 |
|
|
}
|
875 |
|
|
}
|
876 |
|
|
switch (i) {
|
877 |
|
|
case AFMT_S16_LE:
|
878 |
|
|
ainfo.record.precision = ainfo.play.precision = 16;
|
879 |
|
|
ainfo.record.encoding = ainfo.play.encoding =
|
880 |
|
|
AUDIO_ENCODING_LINEARLE;
|
881 |
|
|
break;
|
882 |
|
|
case AFMT_S16_BE:
|
883 |
|
|
ainfo.record.precision = ainfo.play.precision = 16;
|
884 |
|
|
ainfo.record.encoding = ainfo.play.encoding =
|
885 |
|
|
AUDIO_ENCODING_LINEAR;
|
886 |
|
|
break;
|
887 |
|
|
case AFMT_MU_LAW:
|
888 |
|
|
ainfo.record.precision = ainfo.play.precision = 8;
|
889 |
|
|
ainfo.record.encoding = ainfo.play.encoding =
|
890 |
|
|
AUDIO_ENCODING_ULAW;
|
891 |
|
|
break;
|
892 |
|
|
case AFMT_A_LAW:
|
893 |
|
|
ainfo.record.precision = ainfo.play.precision = 8;
|
894 |
|
|
ainfo.record.encoding = ainfo.play.encoding =
|
895 |
|
|
AUDIO_ENCODING_ALAW;
|
896 |
|
|
break;
|
897 |
|
|
case AFMT_U8:
|
898 |
|
|
ainfo.record.precision = ainfo.play.precision = 8;
|
899 |
|
|
ainfo.record.encoding = ainfo.play.encoding =
|
900 |
|
|
AUDIO_ENCODING_LINEAR8;
|
901 |
|
|
break;
|
902 |
|
|
};
|
903 |
|
|
tprintk(("setting fmt to enc %d pr %d\n",
|
904 |
|
|
ainfo.play.encoding,
|
905 |
|
|
ainfo.play.precision));
|
906 |
|
|
if ((drv->ops->set_input_precision(drv,
|
907 |
|
|
ainfo.record.precision)
|
908 |
|
|
< 0) ||
|
909 |
|
|
(drv->ops->set_output_precision(drv,
|
910 |
|
|
ainfo.play.precision)
|
911 |
|
|
< 0) ||
|
912 |
|
|
(drv->ops->set_input_encoding(drv,
|
913 |
|
|
ainfo.record.encoding)
|
914 |
|
|
< 0) ||
|
915 |
|
|
(drv->ops->set_output_encoding(drv,
|
916 |
|
|
ainfo.play.encoding)
|
917 |
|
|
< 0)) {
|
918 |
|
|
dprintk(("setting format: failed\n"));
|
919 |
|
|
return -EINVAL;
|
920 |
|
|
}
|
921 |
|
|
put_user(i, (int *)arg);
|
922 |
|
|
break;
|
923 |
|
|
case SNDCTL_DSP_CHANNELS:
|
924 |
|
|
if ((!drv->ops->set_output_channels) &&
|
925 |
|
|
(!drv->ops->set_input_channels)) {
|
926 |
|
|
retval = -EINVAL;
|
927 |
|
|
break;
|
928 |
|
|
}
|
929 |
|
|
get_user(i, (int *)arg);
|
930 |
|
|
drv->ops->set_input_channels(drv, i);
|
931 |
|
|
drv->ops->set_output_channels(drv, i);
|
932 |
|
|
i = drv->ops->get_output_channels(drv);
|
933 |
|
|
put_user(i, (int *)arg);
|
934 |
|
|
break;
|
935 |
|
|
case SNDCTL_DSP_STEREO:
|
936 |
|
|
if ((!drv->ops->set_output_channels) &&
|
937 |
|
|
(!drv->ops->set_input_channels)) {
|
938 |
|
|
retval = -EINVAL;
|
939 |
|
|
break;
|
940 |
|
|
}
|
941 |
|
|
get_user(i, (int *)arg);
|
942 |
|
|
drv->ops->set_input_channels(drv, (i + 1));
|
943 |
|
|
drv->ops->set_output_channels(drv, (i + 1));
|
944 |
|
|
i = ((drv->ops->get_output_channels(drv)) - 1);
|
945 |
|
|
put_user(i, (int *)arg);
|
946 |
|
|
break;
|
947 |
|
|
case SNDCTL_DSP_POST:
|
948 |
|
|
case SNDCTL_DSP_SYNC:
|
949 |
|
|
case AUDIO_DRAIN:
|
950 |
|
|
/* Deal with weirdness so we can fill buffers */
|
951 |
|
|
if (drv->output_offset) {
|
952 |
|
|
drv->output_offset = 0;
|
953 |
|
|
drv->output_rear = (drv->output_rear + 1)
|
954 |
|
|
% drv->num_output_buffers;
|
955 |
|
|
drv->output_count++;
|
956 |
|
|
}
|
957 |
|
|
if (drv->output_count > 0) {
|
958 |
|
|
sparcaudio_sync_output(drv);
|
959 |
|
|
/* Only pause for DRAIN/SYNC, not POST */
|
960 |
|
|
if (cmd != SNDCTL_DSP_POST) {
|
961 |
|
|
interruptible_sleep_on(&drv->output_drain_wait);
|
962 |
|
|
retval = (signal_pending(current)) ? -EINTR : 0;
|
963 |
|
|
}
|
964 |
|
|
}
|
965 |
|
|
break;
|
966 |
|
|
case I_FLUSH:
|
967 |
|
|
case I_FLUSH_SOLARIS:
|
968 |
|
|
if (((unsigned int)arg == FLUSHW) ||
|
969 |
|
|
((unsigned int)arg == FLUSHRW)) {
|
970 |
|
|
if (file->f_mode & FMODE_WRITE) {
|
971 |
|
|
sparcaudio_sync_output(drv);
|
972 |
|
|
if (drv->output_active) {
|
973 |
|
|
wake_up_interruptible(&drv->output_write_wait);
|
974 |
|
|
drv->ops->stop_output(drv);
|
975 |
|
|
}
|
976 |
|
|
drv->output_offset = 0;
|
977 |
|
|
drv->output_active = 0;
|
978 |
|
|
drv->output_front = 0;
|
979 |
|
|
drv->output_rear = 0;
|
980 |
|
|
drv->output_count = 0;
|
981 |
|
|
drv->output_size = 0;
|
982 |
|
|
drv->playing_count = 0;
|
983 |
|
|
drv->output_eof = 0;
|
984 |
|
|
}
|
985 |
|
|
}
|
986 |
|
|
if (((unsigned int)arg == FLUSHR) ||
|
987 |
|
|
((unsigned int)arg == FLUSHRW)) {
|
988 |
|
|
if (drv->input_active && (file->f_mode & FMODE_READ)) {
|
989 |
|
|
wake_up_interruptible(&drv->input_read_wait);
|
990 |
|
|
drv->ops->stop_input(drv);
|
991 |
|
|
drv->input_active = 0;
|
992 |
|
|
drv->input_front = 0;
|
993 |
|
|
drv->input_rear = 0;
|
994 |
|
|
drv->input_count = 0;
|
995 |
|
|
drv->input_size = 0;
|
996 |
|
|
drv->input_offset = 0;
|
997 |
|
|
drv->recording_count = 0;
|
998 |
|
|
}
|
999 |
|
|
if ((file->f_mode & FMODE_READ) &&
|
1000 |
|
|
(drv->flags & SDF_OPEN_READ)) {
|
1001 |
|
|
if (drv->duplex == 2)
|
1002 |
|
|
drv->input_count = drv->output_count;
|
1003 |
|
|
drv->ops->start_input(drv,
|
1004 |
|
|
drv->input_buffers[drv->input_front],
|
1005 |
|
|
drv->input_buffer_size);
|
1006 |
|
|
drv->input_active = 1;
|
1007 |
|
|
}
|
1008 |
|
|
}
|
1009 |
|
|
if (((unsigned int)arg == FLUSHW) ||
|
1010 |
|
|
((unsigned int)arg == FLUSHRW)) {
|
1011 |
|
|
if ((file->f_mode & FMODE_WRITE) &&
|
1012 |
|
|
!(drv->flags & SDF_OPEN_WRITE)) {
|
1013 |
|
|
kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
|
1014 |
|
|
sparcaudio_sync_output(drv);
|
1015 |
|
|
}
|
1016 |
|
|
}
|
1017 |
|
|
break;
|
1018 |
|
|
case SNDCTL_DSP_RESET:
|
1019 |
|
|
case AUDIO_FLUSH:
|
1020 |
|
|
if (drv->output_active && (file->f_mode & FMODE_WRITE)) {
|
1021 |
|
|
wake_up_interruptible(&drv->output_write_wait);
|
1022 |
|
|
drv->ops->stop_output(drv);
|
1023 |
|
|
drv->output_active = 0;
|
1024 |
|
|
drv->output_front = 0;
|
1025 |
|
|
drv->output_rear = 0;
|
1026 |
|
|
drv->output_count = 0;
|
1027 |
|
|
drv->output_size = 0;
|
1028 |
|
|
drv->playing_count = 0;
|
1029 |
|
|
drv->output_offset = 0;
|
1030 |
|
|
drv->output_eof = 0;
|
1031 |
|
|
}
|
1032 |
|
|
if (drv->input_active && (file->f_mode & FMODE_READ)) {
|
1033 |
|
|
wake_up_interruptible(&drv->input_read_wait);
|
1034 |
|
|
drv->ops->stop_input(drv);
|
1035 |
|
|
drv->input_active = 0;
|
1036 |
|
|
drv->input_front = 0;
|
1037 |
|
|
drv->input_rear = 0;
|
1038 |
|
|
drv->input_count = 0;
|
1039 |
|
|
drv->input_size = 0;
|
1040 |
|
|
drv->input_offset = 0;
|
1041 |
|
|
drv->recording_count = 0;
|
1042 |
|
|
}
|
1043 |
|
|
if ((file->f_mode & FMODE_READ) &&
|
1044 |
|
|
!(drv->flags & SDF_OPEN_READ)) {
|
1045 |
|
|
drv->ops->start_input(drv,
|
1046 |
|
|
drv->input_buffers[drv->input_front],
|
1047 |
|
|
drv->input_buffer_size);
|
1048 |
|
|
drv->input_active = 1;
|
1049 |
|
|
}
|
1050 |
|
|
if ((file->f_mode & FMODE_WRITE) &&
|
1051 |
|
|
!(drv->flags & SDF_OPEN_WRITE)) {
|
1052 |
|
|
sparcaudio_sync_output(drv);
|
1053 |
|
|
}
|
1054 |
|
|
break;
|
1055 |
|
|
case AUDIO_GETDEV:
|
1056 |
|
|
if (drv->ops->sunaudio_getdev) {
|
1057 |
|
|
audio_device_t tmp;
|
1058 |
|
|
|
1059 |
|
|
retval = verify_area(VERIFY_WRITE, (void *)arg,
|
1060 |
|
|
sizeof(audio_device_t));
|
1061 |
|
|
if (!retval)
|
1062 |
|
|
drv->ops->sunaudio_getdev(drv, &tmp);
|
1063 |
|
|
copy_to_user((audio_device_t *)arg, &tmp, sizeof(tmp));
|
1064 |
|
|
} else {
|
1065 |
|
|
retval = -EINVAL;
|
1066 |
|
|
}
|
1067 |
|
|
break;
|
1068 |
|
|
case AUDIO_GETDEV_SUNOS:
|
1069 |
|
|
if (drv->ops->sunaudio_getdev_sunos) {
|
1070 |
|
|
int tmp = drv->ops->sunaudio_getdev_sunos(drv);
|
1071 |
|
|
|
1072 |
|
|
retval = verify_area(VERIFY_WRITE, (void *)arg, sizeof(int));
|
1073 |
|
|
if (!retval)
|
1074 |
|
|
copy_to_user((int *)arg, &tmp, sizeof(tmp));
|
1075 |
|
|
} else {
|
1076 |
|
|
retval = -EINVAL;
|
1077 |
|
|
}
|
1078 |
|
|
break;
|
1079 |
|
|
case AUDIO_GETINFO:
|
1080 |
|
|
AUDIO_INITINFO(&ainfo);
|
1081 |
|
|
|
1082 |
|
|
if (drv->ops->get_input_rate)
|
1083 |
|
|
ainfo.record.sample_rate =
|
1084 |
|
|
drv->ops->get_input_rate(drv);
|
1085 |
|
|
else
|
1086 |
|
|
ainfo.record.sample_rate = (8000);
|
1087 |
|
|
if (drv->ops->get_input_channels)
|
1088 |
|
|
ainfo.record.channels =
|
1089 |
|
|
drv->ops->get_input_channels(drv);
|
1090 |
|
|
else
|
1091 |
|
|
ainfo.record.channels = (1);
|
1092 |
|
|
if (drv->ops->get_input_precision)
|
1093 |
|
|
ainfo.record.precision =
|
1094 |
|
|
drv->ops->get_input_precision(drv);
|
1095 |
|
|
else
|
1096 |
|
|
ainfo.record.precision = (8);
|
1097 |
|
|
if (drv->ops->get_input_encoding)
|
1098 |
|
|
ainfo.record.encoding =
|
1099 |
|
|
drv->ops->get_input_encoding(drv);
|
1100 |
|
|
else
|
1101 |
|
|
ainfo.record.encoding = (AUDIO_ENCODING_ULAW);
|
1102 |
|
|
if (drv->ops->get_input_volume)
|
1103 |
|
|
ainfo.record.gain =
|
1104 |
|
|
drv->ops->get_input_volume(drv);
|
1105 |
|
|
else
|
1106 |
|
|
ainfo.record.gain = (0);
|
1107 |
|
|
if (drv->ops->get_input_port)
|
1108 |
|
|
ainfo.record.port =
|
1109 |
|
|
drv->ops->get_input_port(drv);
|
1110 |
|
|
else
|
1111 |
|
|
ainfo.record.port = (0);
|
1112 |
|
|
if (drv->ops->get_input_ports)
|
1113 |
|
|
ainfo.record.avail_ports =
|
1114 |
|
|
drv->ops->get_input_ports(drv);
|
1115 |
|
|
else
|
1116 |
|
|
ainfo.record.avail_ports = (0);
|
1117 |
|
|
|
1118 |
|
|
/* To make e.g. vat happy, we let them think they control this */
|
1119 |
|
|
ainfo.record.buffer_size = drv->buffer_size;
|
1120 |
|
|
if (drv->ops->get_input_samples)
|
1121 |
|
|
ainfo.record.samples = drv->ops->get_input_samples(drv);
|
1122 |
|
|
else
|
1123 |
|
|
ainfo.record.samples = 0;
|
1124 |
|
|
|
1125 |
|
|
/* This is undefined in the record context in Solaris */
|
1126 |
|
|
ainfo.record.eof = 0;
|
1127 |
|
|
if (drv->ops->get_input_pause)
|
1128 |
|
|
ainfo.record.pause =
|
1129 |
|
|
drv->ops->get_input_pause(drv);
|
1130 |
|
|
else
|
1131 |
|
|
ainfo.record.pause = 0;
|
1132 |
|
|
if (drv->ops->get_input_error)
|
1133 |
|
|
ainfo.record.error =
|
1134 |
|
|
(unsigned char) drv->ops->get_input_error(drv);
|
1135 |
|
|
else
|
1136 |
|
|
ainfo.record.error = 0;
|
1137 |
|
|
ainfo.record.waiting = 0;
|
1138 |
|
|
if (drv->ops->get_input_balance)
|
1139 |
|
|
ainfo.record.balance =
|
1140 |
|
|
(unsigned char) drv->ops->get_input_balance(drv);
|
1141 |
|
|
else
|
1142 |
|
|
ainfo.record.balance = (unsigned char)(AUDIO_MID_BALANCE);
|
1143 |
|
|
ainfo.record.minordev = 4 + (minor << SPARCAUDIO_DEVICE_SHIFT);
|
1144 |
|
|
ainfo.record.open = (drv->flags & SDF_OPEN_READ);
|
1145 |
|
|
ainfo.record.active = 0;
|
1146 |
|
|
|
1147 |
|
|
if (drv->ops->get_output_rate)
|
1148 |
|
|
ainfo.play.sample_rate =
|
1149 |
|
|
drv->ops->get_output_rate(drv);
|
1150 |
|
|
else
|
1151 |
|
|
ainfo.play.sample_rate = (8000);
|
1152 |
|
|
if (drv->ops->get_output_channels)
|
1153 |
|
|
ainfo.play.channels =
|
1154 |
|
|
drv->ops->get_output_channels(drv);
|
1155 |
|
|
else
|
1156 |
|
|
ainfo.play.channels = (1);
|
1157 |
|
|
if (drv->ops->get_output_precision)
|
1158 |
|
|
ainfo.play.precision =
|
1159 |
|
|
drv->ops->get_output_precision(drv);
|
1160 |
|
|
else
|
1161 |
|
|
ainfo.play.precision = (8);
|
1162 |
|
|
if (drv->ops->get_output_encoding)
|
1163 |
|
|
ainfo.play.encoding =
|
1164 |
|
|
drv->ops->get_output_encoding(drv);
|
1165 |
|
|
else
|
1166 |
|
|
ainfo.play.encoding = (AUDIO_ENCODING_ULAW);
|
1167 |
|
|
if (drv->ops->get_output_volume)
|
1168 |
|
|
ainfo.play.gain =
|
1169 |
|
|
drv->ops->get_output_volume(drv);
|
1170 |
|
|
else
|
1171 |
|
|
ainfo.play.gain = (0);
|
1172 |
|
|
if (drv->ops->get_output_port)
|
1173 |
|
|
ainfo.play.port =
|
1174 |
|
|
drv->ops->get_output_port(drv);
|
1175 |
|
|
else
|
1176 |
|
|
ainfo.play.port = (0);
|
1177 |
|
|
if (drv->ops->get_output_ports)
|
1178 |
|
|
ainfo.play.avail_ports =
|
1179 |
|
|
drv->ops->get_output_ports(drv);
|
1180 |
|
|
else
|
1181 |
|
|
ainfo.play.avail_ports = (0);
|
1182 |
|
|
|
1183 |
|
|
/* This is not defined in the play context in Solaris */
|
1184 |
|
|
ainfo.play.buffer_size = 0;
|
1185 |
|
|
if (drv->ops->get_output_samples)
|
1186 |
|
|
ainfo.play.samples = drv->ops->get_output_samples(drv);
|
1187 |
|
|
else
|
1188 |
|
|
ainfo.play.samples = 0;
|
1189 |
|
|
ainfo.play.eof = drv->output_eof;
|
1190 |
|
|
if (drv->ops->get_output_pause)
|
1191 |
|
|
ainfo.play.pause =
|
1192 |
|
|
drv->ops->get_output_pause(drv);
|
1193 |
|
|
else
|
1194 |
|
|
ainfo.play.pause = 0;
|
1195 |
|
|
if (drv->ops->get_output_error)
|
1196 |
|
|
ainfo.play.error =
|
1197 |
|
|
(unsigned char)drv->ops->get_output_error(drv);
|
1198 |
|
|
else
|
1199 |
|
|
ainfo.play.error = 0;
|
1200 |
|
|
ainfo.play.waiting = waitqueue_active(&drv->open_wait);
|
1201 |
|
|
if (drv->ops->get_output_balance)
|
1202 |
|
|
ainfo.play.balance =
|
1203 |
|
|
(unsigned char)drv->ops->get_output_balance(drv);
|
1204 |
|
|
else
|
1205 |
|
|
ainfo.play.balance = (unsigned char)(AUDIO_MID_BALANCE);
|
1206 |
|
|
ainfo.play.minordev = 4 + (minor << SPARCAUDIO_DEVICE_SHIFT);
|
1207 |
|
|
ainfo.play.open = (drv->flags & SDF_OPEN_WRITE);
|
1208 |
|
|
ainfo.play.active = drv->output_active;
|
1209 |
|
|
|
1210 |
|
|
if (drv->ops->get_monitor_volume)
|
1211 |
|
|
ainfo.monitor_gain =
|
1212 |
|
|
drv->ops->get_monitor_volume(drv);
|
1213 |
|
|
else
|
1214 |
|
|
ainfo.monitor_gain = (0);
|
1215 |
|
|
|
1216 |
|
|
if (drv->ops->get_output_muted)
|
1217 |
|
|
ainfo.output_muted =
|
1218 |
|
|
(unsigned char)drv->ops->get_output_muted(drv);
|
1219 |
|
|
else
|
1220 |
|
|
ainfo.output_muted = (unsigned char)(0);
|
1221 |
|
|
|
1222 |
|
|
retval = verify_area(VERIFY_WRITE, (void *)arg,
|
1223 |
|
|
sizeof(struct audio_info));
|
1224 |
|
|
if (retval < 0)
|
1225 |
|
|
break;
|
1226 |
|
|
|
1227 |
|
|
copy_to_user((struct audio_info *)arg, &ainfo, sizeof(ainfo));
|
1228 |
|
|
break;
|
1229 |
|
|
case AUDIO_SETINFO:
|
1230 |
|
|
{
|
1231 |
|
|
audio_info_t curinfo, newinfo;
|
1232 |
|
|
|
1233 |
|
|
if (verify_area(VERIFY_READ, (audio_info_t *)arg,
|
1234 |
|
|
sizeof(audio_info_t))) {
|
1235 |
|
|
dprintk(("verify_area failed\n"));
|
1236 |
|
|
return -EINVAL;
|
1237 |
|
|
}
|
1238 |
|
|
copy_from_user(&ainfo, (audio_info_t *)arg, sizeof(audio_info_t));
|
1239 |
|
|
|
1240 |
|
|
/* Without these there's no point in trying */
|
1241 |
|
|
if (!drv->ops->get_input_precision ||
|
1242 |
|
|
!drv->ops->get_input_channels ||
|
1243 |
|
|
!drv->ops->get_input_rate ||
|
1244 |
|
|
!drv->ops->get_input_encoding ||
|
1245 |
|
|
!drv->ops->get_output_precision ||
|
1246 |
|
|
!drv->ops->get_output_channels ||
|
1247 |
|
|
!drv->ops->get_output_rate ||
|
1248 |
|
|
!drv->ops->get_output_encoding) {
|
1249 |
|
|
eprintk(("missing get routines: failed\n"));
|
1250 |
|
|
retval = -EINVAL;
|
1251 |
|
|
break;
|
1252 |
|
|
}
|
1253 |
|
|
|
1254 |
|
|
/* Do bounds checking for things which always apply.
|
1255 |
|
|
* Follow with enforcement of basic tenets of certain
|
1256 |
|
|
* encodings. Everything over and above generic is
|
1257 |
|
|
* enforced by the driver, which can assume that
|
1258 |
|
|
* Martian cases are taken care of here.
|
1259 |
|
|
*/
|
1260 |
|
|
if (Modify(ainfo.play.gain) &&
|
1261 |
|
|
((ainfo.play.gain > AUDIO_MAX_GAIN) ||
|
1262 |
|
|
(ainfo.play.gain < AUDIO_MIN_GAIN))) {
|
1263 |
|
|
/* Need to differentiate this from e.g. the above error */
|
1264 |
|
|
eprintk(("play gain bounds: failed %d\n", ainfo.play.gain));
|
1265 |
|
|
retval = -EINVAL;
|
1266 |
|
|
break;
|
1267 |
|
|
}
|
1268 |
|
|
if (Modify(ainfo.record.gain) &&
|
1269 |
|
|
((ainfo.record.gain > AUDIO_MAX_GAIN) ||
|
1270 |
|
|
(ainfo.record.gain < AUDIO_MIN_GAIN))) {
|
1271 |
|
|
eprintk(("rec gain bounds: failed %d\n", ainfo.record.gain));
|
1272 |
|
|
retval = -EINVAL;
|
1273 |
|
|
break;
|
1274 |
|
|
}
|
1275 |
|
|
if (Modify(ainfo.monitor_gain) &&
|
1276 |
|
|
((ainfo.monitor_gain > AUDIO_MAX_GAIN) ||
|
1277 |
|
|
(ainfo.monitor_gain < AUDIO_MIN_GAIN))) {
|
1278 |
|
|
eprintk(("monitor gain bounds: failed\n"));
|
1279 |
|
|
retval = -EINVAL;
|
1280 |
|
|
break;
|
1281 |
|
|
}
|
1282 |
|
|
|
1283 |
|
|
/* Don't need to check less than zero on these */
|
1284 |
|
|
if (Modifyc(ainfo.play.balance) &&
|
1285 |
|
|
(ainfo.play.balance > AUDIO_RIGHT_BALANCE)) {
|
1286 |
|
|
eprintk(("play balance bounds: %d failed\n",
|
1287 |
|
|
(int)ainfo.play.balance));
|
1288 |
|
|
retval = -EINVAL;
|
1289 |
|
|
break;
|
1290 |
|
|
}
|
1291 |
|
|
if (Modifyc(ainfo.record.balance) &&
|
1292 |
|
|
(ainfo.record.balance > AUDIO_RIGHT_BALANCE)) {
|
1293 |
|
|
eprintk(("rec balance bounds: failed\n"));
|
1294 |
|
|
retval = -EINVAL;
|
1295 |
|
|
break;
|
1296 |
|
|
}
|
1297 |
|
|
|
1298 |
|
|
/* If any of these changed, record them all, then make
|
1299 |
|
|
* changes atomically. If something fails, back it all out.
|
1300 |
|
|
*/
|
1301 |
|
|
if (Modify(ainfo.record.precision) ||
|
1302 |
|
|
Modify(ainfo.record.sample_rate) ||
|
1303 |
|
|
Modify(ainfo.record.channels) ||
|
1304 |
|
|
Modify(ainfo.record.encoding) ||
|
1305 |
|
|
Modify(ainfo.play.precision) ||
|
1306 |
|
|
Modify(ainfo.play.sample_rate) ||
|
1307 |
|
|
Modify(ainfo.play.channels) ||
|
1308 |
|
|
Modify(ainfo.play.encoding)) {
|
1309 |
|
|
/* If they're trying to change something we
|
1310 |
|
|
* have no routine for, they lose.
|
1311 |
|
|
*/
|
1312 |
|
|
if ((!drv->ops->set_input_encoding &&
|
1313 |
|
|
Modify(ainfo.record.encoding)) ||
|
1314 |
|
|
(!drv->ops->set_input_rate &&
|
1315 |
|
|
Modify(ainfo.record.sample_rate)) ||
|
1316 |
|
|
(!drv->ops->set_input_precision &&
|
1317 |
|
|
Modify(ainfo.record.precision)) ||
|
1318 |
|
|
(!drv->ops->set_input_channels &&
|
1319 |
|
|
Modify(ainfo.record.channels))) {
|
1320 |
|
|
eprintk(("rec set no routines: failed\n"));
|
1321 |
|
|
retval = -EINVAL;
|
1322 |
|
|
break;
|
1323 |
|
|
}
|
1324 |
|
|
|
1325 |
|
|
curinfo.record.encoding =
|
1326 |
|
|
drv->ops->get_input_encoding(drv);
|
1327 |
|
|
curinfo.record.sample_rate =
|
1328 |
|
|
drv->ops->get_input_rate(drv);
|
1329 |
|
|
curinfo.record.precision =
|
1330 |
|
|
drv->ops->get_input_precision(drv);
|
1331 |
|
|
curinfo.record.channels =
|
1332 |
|
|
drv->ops->get_input_channels(drv);
|
1333 |
|
|
newinfo.record.encoding =
|
1334 |
|
|
Modify(ainfo.record.encoding) ?
|
1335 |
|
|
ainfo.record.encoding :
|
1336 |
|
|
curinfo.record.encoding;
|
1337 |
|
|
newinfo.record.sample_rate =
|
1338 |
|
|
Modify(ainfo.record.sample_rate) ?
|
1339 |
|
|
ainfo.record.sample_rate :
|
1340 |
|
|
curinfo.record.sample_rate;
|
1341 |
|
|
newinfo.record.precision =
|
1342 |
|
|
Modify(ainfo.record.precision) ?
|
1343 |
|
|
ainfo.record.precision :
|
1344 |
|
|
curinfo.record.precision;
|
1345 |
|
|
newinfo.record.channels =
|
1346 |
|
|
Modify(ainfo.record.channels) ?
|
1347 |
|
|
ainfo.record.channels :
|
1348 |
|
|
curinfo.record.channels;
|
1349 |
|
|
|
1350 |
|
|
switch (newinfo.record.encoding) {
|
1351 |
|
|
case AUDIO_ENCODING_ALAW:
|
1352 |
|
|
case AUDIO_ENCODING_ULAW:
|
1353 |
|
|
if (newinfo.record.precision != 8) {
|
1354 |
|
|
eprintk(("rec law precision bounds: "
|
1355 |
|
|
"failed\n"));
|
1356 |
|
|
retval = -EINVAL;
|
1357 |
|
|
break;
|
1358 |
|
|
}
|
1359 |
|
|
if (newinfo.record.channels != 1) {
|
1360 |
|
|
eprintk(("rec law channel bounds: "
|
1361 |
|
|
"failed\n"));
|
1362 |
|
|
retval = -EINVAL;
|
1363 |
|
|
break;
|
1364 |
|
|
}
|
1365 |
|
|
break;
|
1366 |
|
|
case AUDIO_ENCODING_LINEAR:
|
1367 |
|
|
case AUDIO_ENCODING_LINEARLE:
|
1368 |
|
|
if (newinfo.record.precision != 16) {
|
1369 |
|
|
eprintk(("rec lin precision bounds: "
|
1370 |
|
|
"failed\n"));
|
1371 |
|
|
retval = -EINVAL;
|
1372 |
|
|
break;
|
1373 |
|
|
}
|
1374 |
|
|
if (newinfo.record.channels != 1 &&
|
1375 |
|
|
newinfo.record.channels != 2) {
|
1376 |
|
|
eprintk(("rec lin channel bounds: "
|
1377 |
|
|
"failed\n"));
|
1378 |
|
|
retval = -EINVAL;
|
1379 |
|
|
break;
|
1380 |
|
|
}
|
1381 |
|
|
break;
|
1382 |
|
|
case AUDIO_ENCODING_LINEAR8:
|
1383 |
|
|
if (newinfo.record.precision != 8) {
|
1384 |
|
|
eprintk(("rec lin8 precision bounds: "
|
1385 |
|
|
"failed\n"));
|
1386 |
|
|
retval = -EINVAL;
|
1387 |
|
|
break;
|
1388 |
|
|
}
|
1389 |
|
|
if (newinfo.record.channels != 1 &&
|
1390 |
|
|
newinfo.record.channels != 2) {
|
1391 |
|
|
eprintk(("rec lin8 channel bounds: "
|
1392 |
|
|
"failed\n"));
|
1393 |
|
|
retval = -EINVAL;
|
1394 |
|
|
break;
|
1395 |
|
|
}
|
1396 |
|
|
};
|
1397 |
|
|
|
1398 |
|
|
if (retval < 0)
|
1399 |
|
|
break;
|
1400 |
|
|
|
1401 |
|
|
/* If they're trying to change something we
|
1402 |
|
|
* have no routine for, they lose.
|
1403 |
|
|
*/
|
1404 |
|
|
if ((!drv->ops->set_output_encoding &&
|
1405 |
|
|
Modify(ainfo.play.encoding)) ||
|
1406 |
|
|
(!drv->ops->set_output_rate &&
|
1407 |
|
|
Modify(ainfo.play.sample_rate)) ||
|
1408 |
|
|
(!drv->ops->set_output_precision &&
|
1409 |
|
|
Modify(ainfo.play.precision)) ||
|
1410 |
|
|
(!drv->ops->set_output_channels &&
|
1411 |
|
|
Modify(ainfo.play.channels))) {
|
1412 |
|
|
eprintk(("play set no routine: failed\n"));
|
1413 |
|
|
retval = -EINVAL;
|
1414 |
|
|
break;
|
1415 |
|
|
}
|
1416 |
|
|
|
1417 |
|
|
curinfo.play.encoding =
|
1418 |
|
|
drv->ops->get_output_encoding(drv);
|
1419 |
|
|
curinfo.play.sample_rate =
|
1420 |
|
|
drv->ops->get_output_rate(drv);
|
1421 |
|
|
curinfo.play.precision =
|
1422 |
|
|
drv->ops->get_output_precision(drv);
|
1423 |
|
|
curinfo.play.channels =
|
1424 |
|
|
drv->ops->get_output_channels(drv);
|
1425 |
|
|
newinfo.play.encoding =
|
1426 |
|
|
Modify(ainfo.play.encoding) ?
|
1427 |
|
|
ainfo.play.encoding :
|
1428 |
|
|
curinfo.play.encoding;
|
1429 |
|
|
newinfo.play.sample_rate =
|
1430 |
|
|
Modify(ainfo.play.sample_rate) ?
|
1431 |
|
|
ainfo.play.sample_rate :
|
1432 |
|
|
curinfo.play.sample_rate;
|
1433 |
|
|
newinfo.play.precision =
|
1434 |
|
|
Modify(ainfo.play.precision) ?
|
1435 |
|
|
ainfo.play.precision :
|
1436 |
|
|
curinfo.play.precision;
|
1437 |
|
|
newinfo.play.channels =
|
1438 |
|
|
Modify(ainfo.play.channels) ?
|
1439 |
|
|
ainfo.play.channels :
|
1440 |
|
|
curinfo.play.channels;
|
1441 |
|
|
|
1442 |
|
|
switch (newinfo.play.encoding) {
|
1443 |
|
|
case AUDIO_ENCODING_ALAW:
|
1444 |
|
|
case AUDIO_ENCODING_ULAW:
|
1445 |
|
|
if (newinfo.play.precision != 8) {
|
1446 |
|
|
eprintk(("play law precision bounds: "
|
1447 |
|
|
"failed\n"));
|
1448 |
|
|
retval = -EINVAL;
|
1449 |
|
|
break;
|
1450 |
|
|
}
|
1451 |
|
|
if (newinfo.play.channels != 1) {
|
1452 |
|
|
eprintk(("play law channel bounds: "
|
1453 |
|
|
"failed\n"));
|
1454 |
|
|
retval = -EINVAL;
|
1455 |
|
|
break;
|
1456 |
|
|
}
|
1457 |
|
|
break;
|
1458 |
|
|
case AUDIO_ENCODING_LINEAR:
|
1459 |
|
|
case AUDIO_ENCODING_LINEARLE:
|
1460 |
|
|
if (newinfo.play.precision != 16) {
|
1461 |
|
|
eprintk(("play lin precision bounds: "
|
1462 |
|
|
"failed\n"));
|
1463 |
|
|
retval = -EINVAL;
|
1464 |
|
|
break;
|
1465 |
|
|
}
|
1466 |
|
|
if (newinfo.play.channels != 1 &&
|
1467 |
|
|
newinfo.play.channels != 2) {
|
1468 |
|
|
eprintk(("play lin channel bounds: "
|
1469 |
|
|
"failed\n"));
|
1470 |
|
|
retval = -EINVAL;
|
1471 |
|
|
break;
|
1472 |
|
|
}
|
1473 |
|
|
break;
|
1474 |
|
|
case AUDIO_ENCODING_LINEAR8:
|
1475 |
|
|
if (newinfo.play.precision != 8) {
|
1476 |
|
|
eprintk(("play lin8 precision bounds: "
|
1477 |
|
|
"failed\n"));
|
1478 |
|
|
retval = -EINVAL;
|
1479 |
|
|
break;
|
1480 |
|
|
}
|
1481 |
|
|
if (newinfo.play.channels != 1 &&
|
1482 |
|
|
newinfo.play.channels != 2) {
|
1483 |
|
|
eprintk(("play lin8 channel bounds: "
|
1484 |
|
|
"failed\n"));
|
1485 |
|
|
retval = -EINVAL;
|
1486 |
|
|
break;
|
1487 |
|
|
}
|
1488 |
|
|
};
|
1489 |
|
|
|
1490 |
|
|
if (retval < 0)
|
1491 |
|
|
break;
|
1492 |
|
|
|
1493 |
|
|
/* If we got this far, we're at least sane with
|
1494 |
|
|
* respect to generics. Try the changes.
|
1495 |
|
|
*/
|
1496 |
|
|
if ((drv->ops->set_input_channels &&
|
1497 |
|
|
(drv->ops->set_input_channels(drv,
|
1498 |
|
|
newinfo.record.channels)
|
1499 |
|
|
< 0)) ||
|
1500 |
|
|
(drv->ops->set_output_channels &&
|
1501 |
|
|
(drv->ops->set_output_channels(drv,
|
1502 |
|
|
newinfo.play.channels)
|
1503 |
|
|
< 0)) ||
|
1504 |
|
|
(drv->ops->set_input_rate &&
|
1505 |
|
|
(drv->ops->set_input_rate(drv,
|
1506 |
|
|
newinfo.record.sample_rate)
|
1507 |
|
|
< 0)) ||
|
1508 |
|
|
(drv->ops->set_output_rate &&
|
1509 |
|
|
(drv->ops->set_output_rate(drv,
|
1510 |
|
|
newinfo.play.sample_rate)
|
1511 |
|
|
< 0)) ||
|
1512 |
|
|
(drv->ops->set_input_precision &&
|
1513 |
|
|
(drv->ops->set_input_precision(drv,
|
1514 |
|
|
newinfo.record.precision)
|
1515 |
|
|
< 0)) ||
|
1516 |
|
|
(drv->ops->set_output_precision &&
|
1517 |
|
|
(drv->ops->set_output_precision(drv,
|
1518 |
|
|
newinfo.play.precision)
|
1519 |
|
|
< 0)) ||
|
1520 |
|
|
(drv->ops->set_input_encoding &&
|
1521 |
|
|
(drv->ops->set_input_encoding(drv,
|
1522 |
|
|
newinfo.record.encoding)
|
1523 |
|
|
< 0)) ||
|
1524 |
|
|
(drv->ops->set_output_encoding &&
|
1525 |
|
|
(drv->ops->set_output_encoding(drv,
|
1526 |
|
|
newinfo.play.encoding)
|
1527 |
|
|
< 0)))
|
1528 |
|
|
{
|
1529 |
|
|
dprintk(("setting format: failed\n"));
|
1530 |
|
|
/* Pray we can set it all back. If not, uh... */
|
1531 |
|
|
if (drv->ops->set_input_channels)
|
1532 |
|
|
drv->ops->set_input_channels(drv,
|
1533 |
|
|
curinfo.record.channels);
|
1534 |
|
|
if (drv->ops->set_output_channels)
|
1535 |
|
|
drv->ops->set_output_channels(drv,
|
1536 |
|
|
curinfo.play.channels);
|
1537 |
|
|
if (drv->ops->set_input_rate)
|
1538 |
|
|
drv->ops->set_input_rate(drv,
|
1539 |
|
|
curinfo.record.sample_rate);
|
1540 |
|
|
if (drv->ops->set_output_rate)
|
1541 |
|
|
drv->ops->set_output_rate(drv,
|
1542 |
|
|
curinfo.play.sample_rate);
|
1543 |
|
|
if (drv->ops->set_input_precision)
|
1544 |
|
|
drv->ops->set_input_precision(drv,
|
1545 |
|
|
curinfo.record.precision);
|
1546 |
|
|
if (drv->ops->set_output_precision)
|
1547 |
|
|
drv->ops->set_output_precision(drv,
|
1548 |
|
|
curinfo.play.precision);
|
1549 |
|
|
if (drv->ops->set_input_encoding)
|
1550 |
|
|
drv->ops->set_input_encoding(drv,
|
1551 |
|
|
curinfo.record.encoding);
|
1552 |
|
|
if (drv->ops->set_output_encoding)
|
1553 |
|
|
drv->ops->set_output_encoding(drv,
|
1554 |
|
|
curinfo.play.encoding);
|
1555 |
|
|
retval = -EINVAL;
|
1556 |
|
|
break;
|
1557 |
|
|
}
|
1558 |
|
|
}
|
1559 |
|
|
|
1560 |
|
|
if (retval < 0)
|
1561 |
|
|
break;
|
1562 |
|
|
|
1563 |
|
|
newinfo.record.balance =
|
1564 |
|
|
__sparcaudio_if_setc_do(drv,
|
1565 |
|
|
drv->ops->set_input_balance,
|
1566 |
|
|
drv->ops->get_input_balance,
|
1567 |
|
|
ainfo.record.balance);
|
1568 |
|
|
newinfo.play.balance =
|
1569 |
|
|
__sparcaudio_if_setc_do(drv,
|
1570 |
|
|
drv->ops->set_output_balance,
|
1571 |
|
|
drv->ops->get_output_balance,
|
1572 |
|
|
ainfo.play.balance);
|
1573 |
|
|
newinfo.record.error =
|
1574 |
|
|
__sparcaudio_if_setc_do(drv,
|
1575 |
|
|
drv->ops->set_input_error,
|
1576 |
|
|
drv->ops->get_input_error,
|
1577 |
|
|
ainfo.record.error);
|
1578 |
|
|
newinfo.play.error =
|
1579 |
|
|
__sparcaudio_if_setc_do(drv,
|
1580 |
|
|
drv->ops->set_output_error,
|
1581 |
|
|
drv->ops->get_output_error,
|
1582 |
|
|
ainfo.play.error);
|
1583 |
|
|
newinfo.output_muted =
|
1584 |
|
|
__sparcaudio_if_setc_do(drv,
|
1585 |
|
|
drv->ops->set_output_muted,
|
1586 |
|
|
drv->ops->get_output_muted,
|
1587 |
|
|
ainfo.output_muted);
|
1588 |
|
|
newinfo.record.gain =
|
1589 |
|
|
__sparcaudio_if_set_do(drv,
|
1590 |
|
|
drv->ops->set_input_volume,
|
1591 |
|
|
drv->ops->get_input_volume,
|
1592 |
|
|
ainfo.record.gain);
|
1593 |
|
|
newinfo.play.gain =
|
1594 |
|
|
__sparcaudio_if_set_do(drv,
|
1595 |
|
|
drv->ops->set_output_volume,
|
1596 |
|
|
drv->ops->get_output_volume,
|
1597 |
|
|
ainfo.play.gain);
|
1598 |
|
|
newinfo.record.port =
|
1599 |
|
|
__sparcaudio_if_set_do(drv,
|
1600 |
|
|
drv->ops->set_input_port,
|
1601 |
|
|
drv->ops->get_input_port,
|
1602 |
|
|
ainfo.record.port);
|
1603 |
|
|
newinfo.play.port =
|
1604 |
|
|
__sparcaudio_if_set_do(drv,
|
1605 |
|
|
drv->ops->set_output_port,
|
1606 |
|
|
drv->ops->get_output_port,
|
1607 |
|
|
ainfo.play.port);
|
1608 |
|
|
newinfo.record.samples =
|
1609 |
|
|
__sparcaudio_if_set_do(drv,
|
1610 |
|
|
drv->ops->set_input_samples,
|
1611 |
|
|
drv->ops->get_input_samples,
|
1612 |
|
|
ainfo.record.samples);
|
1613 |
|
|
newinfo.play.samples =
|
1614 |
|
|
__sparcaudio_if_set_do(drv,
|
1615 |
|
|
drv->ops->set_output_samples,
|
1616 |
|
|
drv->ops->get_output_samples,
|
1617 |
|
|
ainfo.play.samples);
|
1618 |
|
|
newinfo.monitor_gain =
|
1619 |
|
|
__sparcaudio_if_set_do(drv,
|
1620 |
|
|
drv->ops->set_monitor_volume,
|
1621 |
|
|
drv->ops->get_monitor_volume,
|
1622 |
|
|
ainfo.monitor_gain);
|
1623 |
|
|
|
1624 |
|
|
if (Modify(ainfo.record.buffer_size)) {
|
1625 |
|
|
/* Should sanity check this */
|
1626 |
|
|
newinfo.record.buffer_size = ainfo.record.buffer_size;
|
1627 |
|
|
drv->buffer_size = ainfo.record.buffer_size;
|
1628 |
|
|
} else {
|
1629 |
|
|
newinfo.record.buffer_size = drv->buffer_size;
|
1630 |
|
|
}
|
1631 |
|
|
|
1632 |
|
|
if (Modify(ainfo.play.eof)) {
|
1633 |
|
|
ainfo.play.eof = newinfo.play.eof;
|
1634 |
|
|
newinfo.play.eof = drv->output_eof;
|
1635 |
|
|
drv->output_eof = ainfo.play.eof;
|
1636 |
|
|
} else {
|
1637 |
|
|
newinfo.play.eof = drv->output_eof;
|
1638 |
|
|
}
|
1639 |
|
|
|
1640 |
|
|
if (drv->flags & SDF_OPEN_READ) {
|
1641 |
|
|
newinfo.record.pause =
|
1642 |
|
|
__sparcaudio_if_setc_do(drv,
|
1643 |
|
|
drv->ops->set_input_pause,
|
1644 |
|
|
drv->ops->get_input_pause,
|
1645 |
|
|
ainfo.record.pause);
|
1646 |
|
|
} else if (drv->ops->get_input_pause) {
|
1647 |
|
|
newinfo.record.pause = drv->ops->get_input_pause(drv);
|
1648 |
|
|
} else {
|
1649 |
|
|
newinfo.record.pause = 0;
|
1650 |
|
|
}
|
1651 |
|
|
|
1652 |
|
|
if (drv->flags & SDF_OPEN_WRITE) {
|
1653 |
|
|
newinfo.play.pause =
|
1654 |
|
|
__sparcaudio_if_setc_do(drv,
|
1655 |
|
|
drv->ops->set_output_pause,
|
1656 |
|
|
drv->ops->get_output_pause,
|
1657 |
|
|
ainfo.play.pause);
|
1658 |
|
|
} else if (drv->ops->get_output_pause) {
|
1659 |
|
|
newinfo.play.pause = drv->ops->get_output_pause(drv);
|
1660 |
|
|
} else {
|
1661 |
|
|
newinfo.play.pause = 0;
|
1662 |
|
|
}
|
1663 |
|
|
|
1664 |
|
|
retval = verify_area(VERIFY_WRITE, (void *)arg,
|
1665 |
|
|
sizeof(struct audio_info));
|
1666 |
|
|
|
1667 |
|
|
/* Even if we fail, if we made changes let's try notification */
|
1668 |
|
|
if (!retval)
|
1669 |
|
|
copy_to_user((struct audio_info *)arg, &newinfo,
|
1670 |
|
|
sizeof(newinfo));
|
1671 |
|
|
|
1672 |
|
|
#ifdef REAL_AUDIO_SIGNALS
|
1673 |
|
|
kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
|
1674 |
|
|
#endif
|
1675 |
|
|
break;
|
1676 |
|
|
}
|
1677 |
|
|
|
1678 |
|
|
default:
|
1679 |
|
|
if (drv->ops->ioctl)
|
1680 |
|
|
retval = drv->ops->ioctl(inode,file,cmd,arg,drv);
|
1681 |
|
|
else
|
1682 |
|
|
retval = -EINVAL;
|
1683 |
|
|
};
|
1684 |
|
|
break;
|
1685 |
|
|
case SPARCAUDIO_STATUS_MINOR:
|
1686 |
|
|
eprintk(("status minor not yet implemented\n"));
|
1687 |
|
|
retval = -EINVAL;
|
1688 |
|
|
default:
|
1689 |
|
|
eprintk(("unknown minor device number\n"));
|
1690 |
|
|
retval = -EINVAL;
|
1691 |
|
|
}
|
1692 |
|
|
|
1693 |
|
|
return retval;
|
1694 |
|
|
}
|
1695 |
|
|
|
1696 |
|
|
static struct file_operations sparcaudioctl_fops = {
|
1697 |
|
|
owner: THIS_MODULE,
|
1698 |
|
|
poll: sparcaudio_poll,
|
1699 |
|
|
ioctl: sparcaudio_ioctl,
|
1700 |
|
|
};
|
1701 |
|
|
|
1702 |
|
|
static int sparcaudio_open(struct inode * inode, struct file * file)
|
1703 |
|
|
{
|
1704 |
|
|
int minor = MINOR(inode->i_rdev);
|
1705 |
|
|
struct sparcaudio_driver *drv =
|
1706 |
|
|
drivers[(minor >> SPARCAUDIO_DEVICE_SHIFT)];
|
1707 |
|
|
int err;
|
1708 |
|
|
|
1709 |
|
|
/* A low-level audio driver must exist. */
|
1710 |
|
|
if (!drv)
|
1711 |
|
|
return -ENODEV;
|
1712 |
|
|
|
1713 |
|
|
#ifdef S_ZERO_WR
|
1714 |
|
|
/* This is how 2.0 ended up dealing with 0 len writes */
|
1715 |
|
|
inode->i_flags |= S_ZERO_WR;
|
1716 |
|
|
#endif
|
1717 |
|
|
|
1718 |
|
|
switch (minor & 0xf) {
|
1719 |
|
|
case SPARCAUDIO_AUDIOCTL_MINOR:
|
1720 |
|
|
file->f_op = &sparcaudioctl_fops;
|
1721 |
|
|
break;
|
1722 |
|
|
case SPARCAUDIO_DSP16_MINOR:
|
1723 |
|
|
case SPARCAUDIO_DSP_MINOR:
|
1724 |
|
|
case SPARCAUDIO_AUDIO_MINOR:
|
1725 |
|
|
/* If the driver is busy, then wait to get through. */
|
1726 |
|
|
retry_open:
|
1727 |
|
|
if (file->f_mode & FMODE_READ && drv->flags & SDF_OPEN_READ) {
|
1728 |
|
|
if (file->f_flags & O_NONBLOCK)
|
1729 |
|
|
return -EBUSY;
|
1730 |
|
|
|
1731 |
|
|
/* If something is now waiting, signal control device */
|
1732 |
|
|
kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
|
1733 |
|
|
|
1734 |
|
|
interruptible_sleep_on(&drv->open_wait);
|
1735 |
|
|
if (signal_pending(current))
|
1736 |
|
|
return -EINTR;
|
1737 |
|
|
goto retry_open;
|
1738 |
|
|
}
|
1739 |
|
|
if (file->f_mode & FMODE_WRITE && drv->flags & SDF_OPEN_WRITE) {
|
1740 |
|
|
if (file->f_flags & O_NONBLOCK)
|
1741 |
|
|
return -EBUSY;
|
1742 |
|
|
|
1743 |
|
|
/* If something is now waiting, signal control device */
|
1744 |
|
|
kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
|
1745 |
|
|
|
1746 |
|
|
interruptible_sleep_on(&drv->open_wait);
|
1747 |
|
|
if (signal_pending(current))
|
1748 |
|
|
return -EINTR;
|
1749 |
|
|
goto retry_open;
|
1750 |
|
|
}
|
1751 |
|
|
|
1752 |
|
|
/* Allow the low-level driver to initialize itself. */
|
1753 |
|
|
if (drv->ops->open) {
|
1754 |
|
|
err = drv->ops->open(inode,file,drv);
|
1755 |
|
|
if (err < 0)
|
1756 |
|
|
return err;
|
1757 |
|
|
}
|
1758 |
|
|
|
1759 |
|
|
/* Mark the driver as locked for read and/or write. */
|
1760 |
|
|
if (file->f_mode & FMODE_READ) {
|
1761 |
|
|
drv->input_offset = 0;
|
1762 |
|
|
drv->input_front = 0;
|
1763 |
|
|
drv->input_rear = 0;
|
1764 |
|
|
drv->input_count = 0;
|
1765 |
|
|
drv->input_size = 0;
|
1766 |
|
|
drv->recording_count = 0;
|
1767 |
|
|
|
1768 |
|
|
/* Clear pause */
|
1769 |
|
|
if (drv->ops->set_input_pause)
|
1770 |
|
|
drv->ops->set_input_pause(drv, 0);
|
1771 |
|
|
drv->ops->start_input(drv, drv->input_buffers[drv->input_front],
|
1772 |
|
|
drv->input_buffer_size);
|
1773 |
|
|
drv->input_active = 1;
|
1774 |
|
|
drv->flags |= SDF_OPEN_READ;
|
1775 |
|
|
}
|
1776 |
|
|
|
1777 |
|
|
if (file->f_mode & FMODE_WRITE) {
|
1778 |
|
|
drv->output_offset = 0;
|
1779 |
|
|
drv->output_eof = 0;
|
1780 |
|
|
drv->playing_count = 0;
|
1781 |
|
|
drv->output_size = 0;
|
1782 |
|
|
drv->output_front = 0;
|
1783 |
|
|
drv->output_rear = 0;
|
1784 |
|
|
drv->output_count = 0;
|
1785 |
|
|
drv->output_active = 0;
|
1786 |
|
|
|
1787 |
|
|
/* Clear pause */
|
1788 |
|
|
if (drv->ops->set_output_pause)
|
1789 |
|
|
drv->ops->set_output_pause(drv, 0);
|
1790 |
|
|
drv->flags |= SDF_OPEN_WRITE;
|
1791 |
|
|
}
|
1792 |
|
|
|
1793 |
|
|
break;
|
1794 |
|
|
case SPARCAUDIO_MIXER_MINOR:
|
1795 |
|
|
file->f_op = &sparcaudioctl_fops;
|
1796 |
|
|
break;
|
1797 |
|
|
|
1798 |
|
|
default:
|
1799 |
|
|
return -ENXIO;
|
1800 |
|
|
};
|
1801 |
|
|
|
1802 |
|
|
/* From the dbri driver:
|
1803 |
|
|
* SunOS 5.5.1 audio(7I) man page says:
|
1804 |
|
|
* "Upon the initial open() of the audio device, the driver
|
1805 |
|
|
* will reset the data format of the device to the default
|
1806 |
|
|
* state of 8-bit, 8KHz, mono u-law data."
|
1807 |
|
|
*
|
1808 |
|
|
* Of course, we only do this for /dev/audio, and assume
|
1809 |
|
|
* OSS semantics on /dev/dsp
|
1810 |
|
|
*/
|
1811 |
|
|
|
1812 |
|
|
if ((minor & 0xf) == SPARCAUDIO_AUDIO_MINOR) {
|
1813 |
|
|
if (file->f_mode & FMODE_WRITE) {
|
1814 |
|
|
if (drv->ops->set_output_channels)
|
1815 |
|
|
drv->ops->set_output_channels(drv, 1);
|
1816 |
|
|
if (drv->ops->set_output_encoding)
|
1817 |
|
|
drv->ops->set_output_encoding(drv, AUDIO_ENCODING_ULAW);
|
1818 |
|
|
if (drv->ops->set_output_rate)
|
1819 |
|
|
drv->ops->set_output_rate(drv, 8000);
|
1820 |
|
|
}
|
1821 |
|
|
|
1822 |
|
|
if (file->f_mode & FMODE_READ) {
|
1823 |
|
|
if (drv->ops->set_input_channels)
|
1824 |
|
|
drv->ops->set_input_channels(drv, 1);
|
1825 |
|
|
if (drv->ops->set_input_encoding)
|
1826 |
|
|
drv->ops->set_input_encoding(drv, AUDIO_ENCODING_ULAW);
|
1827 |
|
|
if (drv->ops->set_input_rate)
|
1828 |
|
|
drv->ops->set_input_rate(drv, 8000);
|
1829 |
|
|
}
|
1830 |
|
|
}
|
1831 |
|
|
|
1832 |
|
|
/* Success! */
|
1833 |
|
|
return 0;
|
1834 |
|
|
}
|
1835 |
|
|
|
1836 |
|
|
static int sparcaudio_release(struct inode * inode, struct file * file)
|
1837 |
|
|
{
|
1838 |
|
|
struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
|
1839 |
|
|
SPARCAUDIO_DEVICE_SHIFT)];
|
1840 |
|
|
|
1841 |
|
|
lock_kernel();
|
1842 |
|
|
if (file->f_mode & FMODE_READ) {
|
1843 |
|
|
/* Stop input */
|
1844 |
|
|
drv->ops->stop_input(drv);
|
1845 |
|
|
drv->input_active = 0;
|
1846 |
|
|
}
|
1847 |
|
|
|
1848 |
|
|
if (file->f_mode & FMODE_WRITE) {
|
1849 |
|
|
/* Anything in the queue? */
|
1850 |
|
|
if (drv->output_offset) {
|
1851 |
|
|
drv->output_offset = 0;
|
1852 |
|
|
drv->output_rear = (drv->output_rear + 1)
|
1853 |
|
|
% drv->num_output_buffers;
|
1854 |
|
|
drv->output_count++;
|
1855 |
|
|
}
|
1856 |
|
|
sparcaudio_sync_output(drv);
|
1857 |
|
|
|
1858 |
|
|
/* Wait for any output still in the queue to be played. */
|
1859 |
|
|
if ((drv->output_count > 0) || (drv->playing_count > 0))
|
1860 |
|
|
interruptible_sleep_on(&drv->output_drain_wait);
|
1861 |
|
|
|
1862 |
|
|
/* Force any output to be stopped. */
|
1863 |
|
|
drv->ops->stop_output(drv);
|
1864 |
|
|
drv->output_active = 0;
|
1865 |
|
|
drv->playing_count = 0;
|
1866 |
|
|
drv->output_eof = 0;
|
1867 |
|
|
}
|
1868 |
|
|
|
1869 |
|
|
/* Let the low-level driver do any release processing. */
|
1870 |
|
|
if (drv->ops->release)
|
1871 |
|
|
drv->ops->release(inode,file,drv);
|
1872 |
|
|
|
1873 |
|
|
if (file->f_mode & FMODE_READ)
|
1874 |
|
|
drv->flags &= ~(SDF_OPEN_READ);
|
1875 |
|
|
|
1876 |
|
|
if (file->f_mode & FMODE_WRITE)
|
1877 |
|
|
drv->flags &= ~(SDF_OPEN_WRITE);
|
1878 |
|
|
|
1879 |
|
|
/* Status changed. Signal control device */
|
1880 |
|
|
kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
|
1881 |
|
|
|
1882 |
|
|
wake_up_interruptible(&drv->open_wait);
|
1883 |
|
|
unlock_kernel();
|
1884 |
|
|
|
1885 |
|
|
return 0;
|
1886 |
|
|
}
|
1887 |
|
|
|
1888 |
|
|
static struct file_operations sparcaudio_fops = {
|
1889 |
|
|
owner: THIS_MODULE,
|
1890 |
|
|
llseek: no_llseek,
|
1891 |
|
|
read: sparcaudio_read,
|
1892 |
|
|
write: sparcaudio_write,
|
1893 |
|
|
poll: sparcaudio_poll,
|
1894 |
|
|
ioctl: sparcaudio_ioctl,
|
1895 |
|
|
open: sparcaudio_open,
|
1896 |
|
|
release: sparcaudio_release,
|
1897 |
|
|
};
|
1898 |
|
|
|
1899 |
|
|
static struct {
|
1900 |
|
|
unsigned short minor;
|
1901 |
|
|
char *name;
|
1902 |
|
|
umode_t mode;
|
1903 |
|
|
} dev_list[] = {
|
1904 |
|
|
{ SPARCAUDIO_MIXER_MINOR, "mixer", S_IWUSR | S_IRUGO },
|
1905 |
|
|
{ SPARCAUDIO_DSP_MINOR, "dsp", S_IWUGO | S_IRUSR | S_IRGRP },
|
1906 |
|
|
{ SPARCAUDIO_AUDIO_MINOR, "audio", S_IWUGO | S_IRUSR | S_IRGRP },
|
1907 |
|
|
{ SPARCAUDIO_DSP16_MINOR, "dspW", S_IWUGO | S_IRUSR | S_IRGRP },
|
1908 |
|
|
{ SPARCAUDIO_STATUS_MINOR, "status", S_IRUGO },
|
1909 |
|
|
{ SPARCAUDIO_AUDIOCTL_MINOR, "audioctl", S_IRUGO }
|
1910 |
|
|
};
|
1911 |
|
|
|
1912 |
|
|
static void sparcaudio_mkname (char *buf, char *name, int dev)
|
1913 |
|
|
{
|
1914 |
|
|
if (dev)
|
1915 |
|
|
sprintf (buf, "%s%d", name, dev);
|
1916 |
|
|
else
|
1917 |
|
|
sprintf (buf, "%s", name);
|
1918 |
|
|
}
|
1919 |
|
|
|
1920 |
|
|
int register_sparcaudio_driver(struct sparcaudio_driver *drv, int duplex)
|
1921 |
|
|
{
|
1922 |
|
|
int i, dev;
|
1923 |
|
|
unsigned short minor;
|
1924 |
|
|
char name_buf[32];
|
1925 |
|
|
|
1926 |
|
|
/* If we've used up SPARCAUDIO_MAX_DEVICES, fail */
|
1927 |
|
|
for (dev = 0; dev < SPARCAUDIO_MAX_DEVICES; dev++) {
|
1928 |
|
|
if (drivers[dev] == NULL)
|
1929 |
|
|
break;
|
1930 |
|
|
}
|
1931 |
|
|
|
1932 |
|
|
if (drivers[dev])
|
1933 |
|
|
return -EIO;
|
1934 |
|
|
|
1935 |
|
|
/* Ensure that the driver has a proper operations structure. */
|
1936 |
|
|
if (!drv->ops || !drv->ops->start_output || !drv->ops->stop_output ||
|
1937 |
|
|
!drv->ops->start_input || !drv->ops->stop_input)
|
1938 |
|
|
return -EINVAL;
|
1939 |
|
|
|
1940 |
|
|
/* Register ourselves with devfs */
|
1941 |
|
|
for (i=0; i < sizeof (dev_list) / sizeof (*dev_list); i++) {
|
1942 |
|
|
sparcaudio_mkname (name_buf, dev_list[i].name, dev);
|
1943 |
|
|
minor = (dev << SPARCAUDIO_DEVICE_SHIFT) | dev_list[i].minor;
|
1944 |
|
|
devfs_register (devfs_handle, name_buf, DEVFS_FL_NONE,
|
1945 |
|
|
SOUND_MAJOR, minor, S_IFCHR | dev_list[i].mode,
|
1946 |
|
|
&sparcaudio_fops, NULL);
|
1947 |
|
|
}
|
1948 |
|
|
|
1949 |
|
|
/* Setup the circular queues of output and input buffers
|
1950 |
|
|
*
|
1951 |
|
|
* Each buffer is a single page, but output buffers might
|
1952 |
|
|
* be partially filled (by a write with count < output_buffer_size),
|
1953 |
|
|
* so each output buffer also has a paired output size.
|
1954 |
|
|
*
|
1955 |
|
|
* Input buffers, on the other hand, always fill completely,
|
1956 |
|
|
* so we don't need input counts - each contains input_buffer_size
|
1957 |
|
|
* bytes of audio data.
|
1958 |
|
|
*
|
1959 |
|
|
* TODO: Make number of input/output buffers tunable parameters
|
1960 |
|
|
*/
|
1961 |
|
|
|
1962 |
|
|
init_waitqueue_head(&drv->open_wait);
|
1963 |
|
|
init_waitqueue_head(&drv->output_write_wait);
|
1964 |
|
|
init_waitqueue_head(&drv->output_drain_wait);
|
1965 |
|
|
init_waitqueue_head(&drv->input_read_wait);
|
1966 |
|
|
|
1967 |
|
|
drv->num_output_buffers = 8;
|
1968 |
|
|
drv->output_buffer_size = (4096 * 2);
|
1969 |
|
|
drv->playing_count = 0;
|
1970 |
|
|
drv->output_offset = 0;
|
1971 |
|
|
drv->output_eof = 0;
|
1972 |
|
|
drv->output_front = 0;
|
1973 |
|
|
drv->output_rear = 0;
|
1974 |
|
|
drv->output_count = 0;
|
1975 |
|
|
drv->output_active = 0;
|
1976 |
|
|
drv->output_buffers = kmalloc(drv->num_output_buffers *
|
1977 |
|
|
sizeof(__u8 *), GFP_KERNEL);
|
1978 |
|
|
drv->output_sizes = kmalloc(drv->num_output_buffers *
|
1979 |
|
|
sizeof(size_t), GFP_KERNEL);
|
1980 |
|
|
drv->output_notify = kmalloc(drv->num_output_buffers *
|
1981 |
|
|
sizeof(char), GFP_KERNEL);
|
1982 |
|
|
if (!drv->output_buffers || !drv->output_sizes || !drv->output_notify)
|
1983 |
|
|
goto kmalloc_failed1;
|
1984 |
|
|
|
1985 |
|
|
drv->output_buffer = kmalloc((drv->output_buffer_size *
|
1986 |
|
|
drv->num_output_buffers),
|
1987 |
|
|
GFP_KERNEL);
|
1988 |
|
|
if (!drv->output_buffer)
|
1989 |
|
|
goto kmalloc_failed2;
|
1990 |
|
|
|
1991 |
|
|
/* Allocate the pages for each output buffer. */
|
1992 |
|
|
for (i = 0; i < drv->num_output_buffers; i++) {
|
1993 |
|
|
drv->output_buffers[i] = (void *)(drv->output_buffer +
|
1994 |
|
|
(i * drv->output_buffer_size));
|
1995 |
|
|
drv->output_sizes[i] = 0;
|
1996 |
|
|
drv->output_notify[i] = 0;
|
1997 |
|
|
}
|
1998 |
|
|
|
1999 |
|
|
/* Setup the circular queue of input buffers. */
|
2000 |
|
|
drv->num_input_buffers = 8;
|
2001 |
|
|
drv->input_buffer_size = (4096 * 2);
|
2002 |
|
|
drv->recording_count = 0;
|
2003 |
|
|
drv->input_front = 0;
|
2004 |
|
|
drv->input_rear = 0;
|
2005 |
|
|
drv->input_count = 0;
|
2006 |
|
|
drv->input_offset = 0;
|
2007 |
|
|
drv->input_size = 0;
|
2008 |
|
|
drv->input_active = 0;
|
2009 |
|
|
drv->input_buffers = kmalloc(drv->num_input_buffers * sizeof(__u8 *),
|
2010 |
|
|
GFP_KERNEL);
|
2011 |
|
|
drv->input_sizes = kmalloc(drv->num_input_buffers *
|
2012 |
|
|
sizeof(size_t), GFP_KERNEL);
|
2013 |
|
|
if (!drv->input_buffers || !drv->input_sizes)
|
2014 |
|
|
goto kmalloc_failed3;
|
2015 |
|
|
|
2016 |
|
|
/* Allocate the pages for each input buffer. */
|
2017 |
|
|
if (duplex == 1) {
|
2018 |
|
|
drv->input_buffer = kmalloc((drv->input_buffer_size *
|
2019 |
|
|
drv->num_input_buffers),
|
2020 |
|
|
GFP_DMA);
|
2021 |
|
|
if (!drv->input_buffer)
|
2022 |
|
|
goto kmalloc_failed4;
|
2023 |
|
|
|
2024 |
|
|
for (i = 0; i < drv->num_input_buffers; i++)
|
2025 |
|
|
drv->input_buffers[i] = (void *)(drv->input_buffer +
|
2026 |
|
|
(i * drv->input_buffer_size));
|
2027 |
|
|
} else {
|
2028 |
|
|
if (duplex == 2) {
|
2029 |
|
|
drv->input_buffer = drv->output_buffer;
|
2030 |
|
|
drv->input_buffer_size = drv->output_buffer_size;
|
2031 |
|
|
drv->num_input_buffers = drv->num_output_buffers;
|
2032 |
|
|
for (i = 0; i < drv->num_input_buffers; i++)
|
2033 |
|
|
drv->input_buffers[i] = drv->output_buffers[i];
|
2034 |
|
|
} else {
|
2035 |
|
|
for (i = 0; i < drv->num_input_buffers; i++)
|
2036 |
|
|
drv->input_buffers[i] = NULL;
|
2037 |
|
|
}
|
2038 |
|
|
}
|
2039 |
|
|
|
2040 |
|
|
/* Take note of our duplexity */
|
2041 |
|
|
drv->duplex = duplex;
|
2042 |
|
|
|
2043 |
|
|
/* Ensure that the driver is marked as not being open. */
|
2044 |
|
|
drv->flags = 0;
|
2045 |
|
|
|
2046 |
|
|
MOD_INC_USE_COUNT;
|
2047 |
|
|
|
2048 |
|
|
/* Take driver slot, note which we took */
|
2049 |
|
|
drv->index = dev;
|
2050 |
|
|
drivers[dev] = drv;
|
2051 |
|
|
|
2052 |
|
|
return 0;
|
2053 |
|
|
|
2054 |
|
|
kmalloc_failed4:
|
2055 |
|
|
kfree(drv->input_buffer);
|
2056 |
|
|
|
2057 |
|
|
kmalloc_failed3:
|
2058 |
|
|
if (drv->input_sizes)
|
2059 |
|
|
kfree(drv->input_sizes);
|
2060 |
|
|
if (drv->input_buffers)
|
2061 |
|
|
kfree(drv->input_buffers);
|
2062 |
|
|
i = drv->num_output_buffers;
|
2063 |
|
|
|
2064 |
|
|
kmalloc_failed2:
|
2065 |
|
|
kfree(drv->output_buffer);
|
2066 |
|
|
|
2067 |
|
|
kmalloc_failed1:
|
2068 |
|
|
if (drv->output_buffers)
|
2069 |
|
|
kfree(drv->output_buffers);
|
2070 |
|
|
if (drv->output_sizes)
|
2071 |
|
|
kfree(drv->output_sizes);
|
2072 |
|
|
if (drv->output_notify)
|
2073 |
|
|
kfree(drv->output_notify);
|
2074 |
|
|
|
2075 |
|
|
return -ENOMEM;
|
2076 |
|
|
}
|
2077 |
|
|
|
2078 |
|
|
int unregister_sparcaudio_driver(struct sparcaudio_driver *drv, int duplex)
|
2079 |
|
|
{
|
2080 |
|
|
devfs_handle_t de;
|
2081 |
|
|
int i;
|
2082 |
|
|
char name_buf[32];
|
2083 |
|
|
|
2084 |
|
|
/* Figure out which driver is unregistering */
|
2085 |
|
|
if (drivers[drv->index] != drv)
|
2086 |
|
|
return -EIO;
|
2087 |
|
|
|
2088 |
|
|
/* Deallocate the queue of output buffers. */
|
2089 |
|
|
kfree(drv->output_buffer);
|
2090 |
|
|
kfree(drv->output_buffers);
|
2091 |
|
|
kfree(drv->output_sizes);
|
2092 |
|
|
kfree(drv->output_notify);
|
2093 |
|
|
|
2094 |
|
|
/* Deallocate the queue of input buffers. */
|
2095 |
|
|
if (duplex == 1) {
|
2096 |
|
|
kfree(drv->input_buffer);
|
2097 |
|
|
kfree(drv->input_sizes);
|
2098 |
|
|
}
|
2099 |
|
|
kfree(drv->input_buffers);
|
2100 |
|
|
|
2101 |
|
|
if (&(drv->sd_siglist) != NULL)
|
2102 |
|
|
lis_free_elist( &(drv->sd_siglist) );
|
2103 |
|
|
|
2104 |
|
|
/* Unregister ourselves with devfs */
|
2105 |
|
|
for (i=0; i < sizeof (dev_list) / sizeof (*dev_list); i++) {
|
2106 |
|
|
sparcaudio_mkname (name_buf, dev_list[i].name, drv->index);
|
2107 |
|
|
de = devfs_find_handle (devfs_handle, name_buf, 0, 0,
|
2108 |
|
|
DEVFS_SPECIAL_CHR, 0);
|
2109 |
|
|
devfs_unregister (de);
|
2110 |
|
|
}
|
2111 |
|
|
|
2112 |
|
|
MOD_DEC_USE_COUNT;
|
2113 |
|
|
|
2114 |
|
|
/* Null the appropriate driver */
|
2115 |
|
|
drivers[drv->index] = NULL;
|
2116 |
|
|
|
2117 |
|
|
return 0;
|
2118 |
|
|
}
|
2119 |
|
|
|
2120 |
|
|
EXPORT_SYMBOL(register_sparcaudio_driver);
|
2121 |
|
|
EXPORT_SYMBOL(unregister_sparcaudio_driver);
|
2122 |
|
|
EXPORT_SYMBOL(sparcaudio_output_done);
|
2123 |
|
|
EXPORT_SYMBOL(sparcaudio_input_done);
|
2124 |
|
|
|
2125 |
|
|
static int __init sparcaudio_init(void)
|
2126 |
|
|
{
|
2127 |
|
|
/* Register our character device driver with the VFS. */
|
2128 |
|
|
if (devfs_register_chrdev(SOUND_MAJOR, "sparcaudio", &sparcaudio_fops))
|
2129 |
|
|
return -EIO;
|
2130 |
|
|
|
2131 |
|
|
devfs_handle = devfs_mk_dir (NULL, "sound", NULL);
|
2132 |
|
|
return 0;
|
2133 |
|
|
}
|
2134 |
|
|
|
2135 |
|
|
static void __exit sparcaudio_exit(void)
|
2136 |
|
|
{
|
2137 |
|
|
devfs_unregister_chrdev(SOUND_MAJOR, "sparcaudio");
|
2138 |
|
|
devfs_unregister (devfs_handle);
|
2139 |
|
|
}
|
2140 |
|
|
|
2141 |
|
|
module_init(sparcaudio_init);
|
2142 |
|
|
module_exit(sparcaudio_exit);
|
2143 |
|
|
MODULE_LICENSE("GPL");
|
2144 |
|
|
|
2145 |
|
|
/*
|
2146 |
|
|
* Code from Linux Streams, Copyright 1995 by
|
2147 |
|
|
* Graham Wheeler, Francisco J. Ballesteros, Denis Froschauer
|
2148 |
|
|
* and available under GPL
|
2149 |
|
|
*/
|
2150 |
|
|
|
2151 |
|
|
static int
|
2152 |
|
|
lis_add_to_elist( strevent_t **list, pid_t pid, short events )
|
2153 |
|
|
{
|
2154 |
|
|
strevent_t *ev = NULL;
|
2155 |
|
|
|
2156 |
|
|
if (*list != NULL) {
|
2157 |
|
|
for (ev = (*list)->se_next;
|
2158 |
|
|
ev != *list && ev->se_pid < pid;
|
2159 |
|
|
ev = ev->se_next)
|
2160 |
|
|
;
|
2161 |
|
|
}
|
2162 |
|
|
|
2163 |
|
|
if (ev == NULL || ev == *list) { /* no slot for pid in list */
|
2164 |
|
|
ev = (strevent_t *) kmalloc(sizeof(strevent_t), GFP_KERNEL);
|
2165 |
|
|
if (ev == NULL)
|
2166 |
|
|
return(-ENOMEM);
|
2167 |
|
|
|
2168 |
|
|
if (!*list) { /* create dummy head node */
|
2169 |
|
|
strevent_t *hd;
|
2170 |
|
|
|
2171 |
|
|
hd = (strevent_t *) kmalloc(sizeof(strevent_t), GFP_KERNEL);
|
2172 |
|
|
if (hd == NULL) {
|
2173 |
|
|
kfree(ev);
|
2174 |
|
|
return(-ENOMEM);
|
2175 |
|
|
}
|
2176 |
|
|
(*list = hd)->se_pid = 0;
|
2177 |
|
|
hd->se_next = hd->se_prev = hd; /* empty list */
|
2178 |
|
|
}
|
2179 |
|
|
|
2180 |
|
|
/* link node last in the list */
|
2181 |
|
|
ev->se_prev = (*list)->se_prev;
|
2182 |
|
|
(*list)->se_prev->se_next = ev;
|
2183 |
|
|
((*list)->se_prev = ev)->se_next = *list;
|
2184 |
|
|
|
2185 |
|
|
ev->se_pid = pid;
|
2186 |
|
|
ev->se_evs = 0;
|
2187 |
|
|
} else if (ev->se_pid != pid) { /* link node in the middle of the list */
|
2188 |
|
|
strevent_t *new;
|
2189 |
|
|
|
2190 |
|
|
new = (strevent_t *) kmalloc(sizeof(strevent_t), GFP_KERNEL);
|
2191 |
|
|
if (new == NULL)
|
2192 |
|
|
return -ENOMEM;
|
2193 |
|
|
|
2194 |
|
|
new->se_prev = ev->se_prev;
|
2195 |
|
|
new->se_next = ev;
|
2196 |
|
|
ev->se_prev->se_next = new;
|
2197 |
|
|
ev->se_prev = new;
|
2198 |
|
|
ev = new; /* use new element */
|
2199 |
|
|
ev->se_pid = pid;
|
2200 |
|
|
ev->se_evs = 0;
|
2201 |
|
|
}
|
2202 |
|
|
|
2203 |
|
|
ev->se_evs |= events;
|
2204 |
|
|
return 0;
|
2205 |
|
|
}
|
2206 |
|
|
|
2207 |
|
|
static int
|
2208 |
|
|
lis_del_from_elist( strevent_t **list, pid_t pid, short events )
|
2209 |
|
|
{
|
2210 |
|
|
strevent_t *ev = NULL;
|
2211 |
|
|
|
2212 |
|
|
if (*list != NULL) {
|
2213 |
|
|
for (ev = (*list)->se_next;
|
2214 |
|
|
ev != *list && ev->se_pid < pid;
|
2215 |
|
|
ev = ev->se_next)
|
2216 |
|
|
;
|
2217 |
|
|
}
|
2218 |
|
|
|
2219 |
|
|
if (ev == NULL || ev == *list || ev->se_pid != pid)
|
2220 |
|
|
return 1;
|
2221 |
|
|
|
2222 |
|
|
if ((ev->se_evs &= ~events) == 0) { /* unlink */
|
2223 |
|
|
if (ev->se_next) /* should always be true */
|
2224 |
|
|
ev->se_next->se_prev = ev->se_prev;
|
2225 |
|
|
if (ev->se_prev) /* should always be true */
|
2226 |
|
|
ev->se_prev->se_next = ev->se_next;
|
2227 |
|
|
kfree(ev);
|
2228 |
|
|
}
|
2229 |
|
|
return 0;
|
2230 |
|
|
}
|
2231 |
|
|
|
2232 |
|
|
static void
|
2233 |
|
|
lis_free_elist( strevent_t **list )
|
2234 |
|
|
{
|
2235 |
|
|
strevent_t *ev;
|
2236 |
|
|
strevent_t *nxt;
|
2237 |
|
|
|
2238 |
|
|
for (ev = *list; ev != NULL; ) {
|
2239 |
|
|
nxt = ev->se_next;
|
2240 |
|
|
kfree(ev);
|
2241 |
|
|
ev = nxt;
|
2242 |
|
|
if (ev == *list)
|
2243 |
|
|
break; /* all done */
|
2244 |
|
|
}
|
2245 |
|
|
|
2246 |
|
|
*list = NULL;
|
2247 |
|
|
}
|
2248 |
|
|
|
2249 |
|
|
static short
|
2250 |
|
|
lis_get_elist_ent( strevent_t *list, pid_t pid )
|
2251 |
|
|
{
|
2252 |
|
|
strevent_t *ev = NULL;
|
2253 |
|
|
|
2254 |
|
|
if (list == NULL)
|
2255 |
|
|
return 0;
|
2256 |
|
|
|
2257 |
|
|
for(ev = list->se_next ; ev != list && ev->se_pid < pid; ev = ev->se_next)
|
2258 |
|
|
;
|
2259 |
|
|
if (ev != list && ev->se_pid == pid)
|
2260 |
|
|
return ev->se_evs;
|
2261 |
|
|
else
|
2262 |
|
|
return 0;
|
2263 |
|
|
}
|
2264 |
|
|
|
2265 |
|
|
static void
|
2266 |
|
|
kill_procs( struct strevent *elist, int sig, short e)
|
2267 |
|
|
{
|
2268 |
|
|
strevent_t *ev;
|
2269 |
|
|
int res;
|
2270 |
|
|
|
2271 |
|
|
if (elist) {
|
2272 |
|
|
for(ev = elist->se_next ; ev != elist; ev = ev->se_next)
|
2273 |
|
|
if ((ev->se_evs & e) != 0) {
|
2274 |
|
|
res = kill_proc(ev->se_pid, SIGPOLL, 1);
|
2275 |
|
|
|
2276 |
|
|
if (res < 0) {
|
2277 |
|
|
if (res == -3) {
|
2278 |
|
|
lis_del_from_elist(&elist,
|
2279 |
|
|
ev->se_pid,
|
2280 |
|
|
S_ALL);
|
2281 |
|
|
continue;
|
2282 |
|
|
}
|
2283 |
|
|
dprintk(("kill_proc: errno %d\n",res));
|
2284 |
|
|
}
|
2285 |
|
|
}
|
2286 |
|
|
}
|
2287 |
|
|
}
|
2288 |
|
|
|
2289 |
|
|
/*
|
2290 |
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
2291 |
|
|
* Emacs will notice this stuff at the end of the file and automatically
|
2292 |
|
|
* adjust the settings for this buffer only. This must remain at the end
|
2293 |
|
|
* of the file.
|
2294 |
|
|
* ---------------------------------------------------------------------------
|
2295 |
|
|
* Local variables:
|
2296 |
|
|
* c-indent-level: 4
|
2297 |
|
|
* c-brace-imaginary-offset: 0
|
2298 |
|
|
* c-brace-offset: -4
|
2299 |
|
|
* c-argdecl-indent: 4
|
2300 |
|
|
* c-label-offset: -4
|
2301 |
|
|
* c-continued-statement-offset: 4
|
2302 |
|
|
* c-continued-brace-offset: 0
|
2303 |
|
|
* indent-tabs-mode: nil
|
2304 |
|
|
* tab-width: 8
|
2305 |
|
|
* End:
|
2306 |
|
|
*/
|