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1275 |
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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| 250 |
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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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| 253 |
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| 254 |
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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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| 257 |
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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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| 263 |
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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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| 268 |
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}
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| 270 |
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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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| 273 |
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if (drv->duplex == 2)
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| 274 |
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wake_up_interruptible(&drv->output_write_wait);
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}
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| 276 |
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| 277 |
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return bytes_read;
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| 278 |
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}
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| 279 |
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| 280 |
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static void sparcaudio_sync_output(struct sparcaudio_driver * drv)
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| 281 |
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{
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| 282 |
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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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| 285 |
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save_and_cli(flags);
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| 286 |
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if ((!drv->output_active) && (drv->output_count > 0)) {
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| 287 |
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drv->ops->start_output(drv,
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| 288 |
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drv->output_buffers[drv->output_front],
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| 289 |
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drv->output_sizes[drv->output_front]);
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| 290 |
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drv->output_active = 1;
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| 291 |
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}
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| 292 |
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restore_flags(flags);
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| 293 |
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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,
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| 296 |
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size_t count, loff_t *ppos)
|
| 297 |
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{
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| 298 |
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struct inode *inode = file->f_dentry->d_inode;
|
| 299 |
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struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
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| 300 |
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SPARCAUDIO_DEVICE_SHIFT)];
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| 301 |
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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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| 308 |
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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++;
|
| 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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| 314 |
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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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| 316 |
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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 |
|
|
if (drv->num_output_buffers == (drv->output_count+drv->playing_count)) {
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| 323 |
|
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/* We need buffers, so... */
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| 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;
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| 327 |
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|
| 328 |
|
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interruptible_sleep_on(&drv->output_write_wait);
|
| 329 |
|
|
if (signal_pending(current))
|
| 330 |
|
|
return bytes_written > 0 ? bytes_written : -EINTR;
|
| 331 |
|
|
}
|
| 332 |
|
|
|
| 333 |
|
|
/* No buffers were freed. Go back to sleep */
|
| 334 |
|
|
if (drv->num_output_buffers == (drv->output_count+drv->playing_count))
|
| 335 |
|
|
continue;
|
| 336 |
|
|
|
| 337 |
|
|
/* Deal with the weird case of a reader in the write area by trying to
|
| 338 |
|
|
* let them keep ahead of us... Go to sleep until they start servicing.
|
| 339 |
|
|
*/
|
| 340 |
|
|
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 |
|
|
*/
|
