patch-2.1.129 linux/drivers/sbus/audio/audio.c
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- Lines: 3052
- Date:
Wed Nov 18 09:06:05 1998
- Orig file:
v2.1.128/linux/drivers/sbus/audio/audio.c
- Orig date:
Mon Oct 5 13:13:40 1998
diff -u --recursive --new-file v2.1.128/linux/drivers/sbus/audio/audio.c linux/drivers/sbus/audio/audio.c
@@ -1,13 +1,17 @@
/*
* drivers/sbus/audio/audio.c
*
- * Copyright (C) 1996,1997 Thomas K. Dyas (tdyas@eden.rutgers.edu)
- * Copyright (C) 1997 Derrick J. Brashear (shadow@dementia.org)
+ * Copyright (C) 1996 Thomas K. Dyas (tdyas@noc.rutgers.edu)
+ * Copyright (C) 1997,1998 Derrick J. Brashear (shadow@dementia.org)
* Copyright (C) 1997 Brent Baccala (baccala@freesoft.org)
*
* Mixer code adapted from code contributed by and
* Copyright (C) 1998 Michael Mraka (michael@fi.muni.cz)
+ * The mixer code cheats; Sparc hardware doesn't generally allow independent
+ * line control, and this fakes it badly.
*
+ * SNDCTL_DSP_SETFMT based on code contributed by
+ * Ion Badulescu (ionut@moisil.cs.columbia.edu)
*
* This is the audio midlayer that sits between the VFS character
* devices and the low-level audio hardware device drivers.
@@ -26,191 +30,345 @@
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/soundcard.h>
-#include <asm/uaccess.h>
+#include <linux/version.h>
+#include <asm/delay.h>
#include <asm/pgtable.h>
#include <asm/audioio.h>
+#undef __AUDIO_DEBUG
+#define __AUDIO_ERROR
+#undef __AUDIO_TRACE
+#ifdef __AUDIO_DEBUG
+#define dprintk(x) printk x
+#else
+#define dprintk(x)
+#endif
+#ifdef __AUDIO_ERROR
+#define eprintk(x) printk x
+#else
+#define eprintk(x)
+#endif
+#ifdef __AUDIO_TRACE
+#define tprintk(x) printk x
+#else
+#define tprintk(x)
+#endif
-/*
- * Low-level driver interface.
- */
+static short lis_get_elist_ent( strevent_t *list, pid_t pid );
+static int lis_add_to_elist( strevent_t **list, pid_t pid, short events );
+static int lis_del_from_elist( strevent_t **list, pid_t pid, short events );
+static void lis_free_elist( strevent_t **list);
+static void kill_procs( struct strevent *elist, int sig, short e);
+
+static struct sparcaudio_driver *drivers[SPARCAUDIO_MAX_DEVICES] = {NULL};
+
+/* This crap to be pulled off into a local include file */
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x20100
+
+#define COPY_IN(arg, get) verify_area(VERIFY_READ, (void *)arg, sizeof(long)); memcpy_fromfs(&get, (long *)arg, sizeof(get));
+#define COPY_OUT(arg, ret) verify_area(VERIFY_WRITE, (void *)arg, sizeof(long)); memcpy_tofs((long *)arg, &ret, sizeof(ret));
+#define copy_to_user memcpy_tofs
+#define copy_from_user memcpy_fromfs
+#define signal_pending(x) (((x)->signal) & ~((x)->blocked))
+
+#else
-/* We only support one low-level audio driver currently. */
-static struct sparcaudio_driver *driver = NULL;
+#include <asm/uaccess.h>
+#include <linux/poll.h>
+#define COPY_IN(arg, get) get_user(get, (int *)arg)
+#define COPY_OUT(arg, ret) put_user(ret, (int *)arg)
+#define sparcaudio_release_ret sparcaudio_release
+#define sparcaudioctl_release_ret sparcaudioctl_release
+#define sparcaudio_select sparcaudio_poll
-int register_sparcaudio_driver(struct sparcaudio_driver *drv)
+#endif
+
+int register_sparcaudio_driver(struct sparcaudio_driver *drv, int duplex)
{
- int i;
+ int i, dev;
- /* If a driver is already present, don't allow the register. */
- if (driver)
- return -EIO;
+ /* If we've used up SPARCAUDIO_MAX_DEVICES, fail */
+ for (dev = 0; dev < SPARCAUDIO_MAX_DEVICES; dev++) {
+ if (drivers[dev] == NULL) {
+ break;
+ }
+ }
+ if (drivers[dev]) {
+ return -EIO;
+ }
/* Ensure that the driver has a proper operations structure. */
- if (!drv->ops || !drv->ops->start_output || !drv->ops->stop_output)
+ if (!drv->ops || !drv->ops->start_output || !drv->ops->stop_output ||
+ !drv->ops->start_input || !drv->ops->stop_input)
return -EINVAL;
- /* Setup the circular queues of output and input buffers
- *
- * Each buffer is a single page, but output buffers might
- * be partially filled (by a write with count < 4096),
- * so each output buffer also has a paired output size.
- *
- * Input buffers, on the other hand, always fill completely,
- * so we don't need input counts - each contains 4096
- * bytes of audio data.
- *
- * TODO: Make number of input/output buffers tunable parameters
- */
-
- drv->num_output_buffers = 32;
- drv->playing_count = 0;
- drv->output_front = 0;
- drv->output_rear = 0;
- drv->output_count = 0;
- drv->output_active = 0;
- drv->output_buffers = kmalloc(drv->num_output_buffers * sizeof(__u8 *), GFP_KERNEL);
- drv->output_sizes = kmalloc(drv->num_output_buffers * sizeof(size_t), GFP_KERNEL);
- if (!drv->output_buffers || !drv->output_sizes) goto kmalloc_failed1;
-
- /* Allocate the pages for each output buffer. */
- for (i = 0; i < drv->num_output_buffers; i++) {
- drv->output_buffers[i] = (void *) __get_free_page(GFP_KERNEL);
- if (!drv->output_buffers[i]) goto kmalloc_failed2;
- }
+ /* Setup the circular queues of output and input buffers
+ *
+ * Each buffer is a single page, but output buffers might
+ * be partially filled (by a write with count < output_buffer_size),
+ * so each output buffer also has a paired output size.
+ *
+ * Input buffers, on the other hand, always fill completely,
+ * so we don't need input counts - each contains input_buffer_size
+ * bytes of audio data.
+ *
+ * TODO: Make number of input/output buffers tunable parameters
+ */
+
+ drv->num_output_buffers = 8;
+ drv->output_buffer_size = (4096 * 2);
+ drv->playing_count = 0;
+ drv->output_offset = 0;
+ drv->output_eof = 0;
+ drv->output_front = 0;
+ drv->output_rear = 0;
+ drv->output_count = 0;
+ drv->output_active = 0;
+ drv->output_buffers = kmalloc(drv->num_output_buffers *
+ sizeof(__u8 *), GFP_KERNEL);
+ drv->output_sizes = kmalloc(drv->num_output_buffers *
+ sizeof(size_t), GFP_KERNEL);
+ drv->output_notify = kmalloc(drv->num_output_buffers *
+ sizeof(char), GFP_KERNEL);
+ if (!drv->output_buffers || !drv->output_sizes || !drv->output_notify)
+ goto kmalloc_failed1;
+
+ drv->output_buffer = kmalloc((drv->output_buffer_size *
+ drv->num_output_buffers),
+ GFP_KERNEL);
+ if (!drv->output_buffer) goto kmalloc_failed2;
+
+ /* Allocate the pages for each output buffer. */
+ for (i = 0; i < drv->num_output_buffers; i++) {
+ drv->output_buffers[i] = (void *)(drv->output_buffer +
+ (i * drv->output_buffer_size));
+ drv->output_sizes[i] = 0;
+ drv->output_notify[i] = 0;
+ }
- /* Setup the circular queue of input buffers. */
- drv->num_input_buffers = 32;
- drv->recording_count = 0;
- drv->input_front = 0;
- drv->input_rear = 0;
- drv->input_count = 0;
- drv->input_active = 0;
- drv->input_buffers = kmalloc(drv->num_input_buffers * sizeof(__u8 *), GFP_KERNEL);
- if (!drv->input_buffers) goto kmalloc_failed3;
-
- /* Allocate the pages for each input buffer. */
- for (i = 0; i < drv->num_input_buffers; i++) {
- drv->input_buffers[i] = (void *) __get_free_page(GFP_KERNEL);
- if (!drv->input_buffers[i]) goto kmalloc_failed4;
+ /* Setup the circular queue of input buffers. */
+ drv->num_input_buffers = 8;
+ drv->input_buffer_size = (4096 * 2);
+ drv->recording_count = 0;
+ drv->input_front = 0;
+ drv->input_rear = 0;
+ drv->input_count = 0;
+ drv->input_offset = 0;
+ drv->input_size = 0;
+ drv->input_active = 0;
+ drv->input_buffers = kmalloc(drv->num_input_buffers * sizeof(__u8 *),
+ GFP_KERNEL);
+ drv->input_sizes = kmalloc(drv->num_input_buffers *
+ sizeof(size_t), GFP_KERNEL);
+ if (!drv->input_buffers || !drv->input_sizes) goto kmalloc_failed3;
+
+ /* Allocate the pages for each input buffer. */
+ if (duplex == 1) {
+ drv->input_buffer = kmalloc((drv->input_buffer_size *
+ drv->num_input_buffers),
+ GFP_KERNEL);
+ if (!drv->input_buffer) goto kmalloc_failed4;
+
+ for (i = 0; i < drv->num_input_buffers; i++) {
+ drv->input_buffers[i] = (void *)(drv->input_buffer +
+ (i * drv->input_buffer_size));
+ }
+ } else {
+ if (duplex == 2) {
+ drv->input_buffer = drv->output_buffer;
+ drv->input_buffer_size = drv->output_buffer_size;
+ drv->num_input_buffers = drv->num_output_buffers;
+ for (i = 0; i < drv->num_input_buffers; i++)
+ drv->input_buffers[i] = drv->output_buffers[i];
+ } else {
+ for (i = 0; i < drv->num_input_buffers; i++)
+ drv->input_buffers[i] = NULL;
+ }
}
+ /* Take note of our duplexity */
+ drv->duplex = duplex;
+
/* Ensure that the driver is marked as not being open. */
drv->flags = 0;
MOD_INC_USE_COUNT;
- driver = drv;
- return 0;
+ /* Take driver slot, note which we took */
+ drv->index = dev;
+ drivers[dev] = drv;
+ return 0;
kmalloc_failed4:
- for (i--; i >= 0; i--)
- free_page((unsigned long) drv->input_buffers[i]);
+ kfree(drv->input_buffer);
kmalloc_failed3:
- if (drv->input_buffers)
- kfree(drv->input_buffers);
- i = drv->num_output_buffers;
+ if (drv->input_sizes)
+ kfree(drv->input_sizes);
+ if (drv->input_buffers)
+ kfree(drv->input_buffers);
+ i = drv->num_output_buffers;
kmalloc_failed2:
- for (i--; i >= 0; i--)
- free_page((unsigned long) drv->output_buffers[i]);
+ kfree(drv->output_buffer);
kmalloc_failed1:
- if (drv->output_buffers)
- kfree(drv->output_buffers);
- if (drv->output_sizes)
- kfree(drv->output_sizes);
+ if (drv->output_buffers)
+ kfree(drv->output_buffers);
+ if (drv->output_sizes)
+ kfree(drv->output_sizes);
+ if (drv->output_notify)
+ kfree(drv->output_notify);
- return -ENOMEM;
+ return -ENOMEM;
}
-int unregister_sparcaudio_driver(struct sparcaudio_driver *drv)
+int unregister_sparcaudio_driver(struct sparcaudio_driver *drv, int duplex)
{
- int i;
-
- /* Make sure that the current driver is unregistering. */
- if (driver != drv)
+ /* Figure out which driver is unregistering */
+ if (drivers[drv->index] != drv)
return -EIO;
/* Deallocate the queue of output buffers. */
- for (i = 0; i < driver->num_output_buffers; i++)
- free_page((unsigned long) driver->output_buffers[i]);
- kfree(driver->output_buffers);
- kfree(driver->output_sizes);
-
- /* Deallocate the queue of input buffers. */
- for (i = 0; i < driver->num_input_buffers; i++)
- free_page((unsigned long) driver->input_buffers[i]);
- kfree(driver->input_buffers);
+ kfree(drv->output_buffer);
+ kfree(drv->output_buffers);
+ kfree(drv->output_sizes);
+ kfree(drv->output_notify);
+
+ /* Deallocate the queue of input buffers. */
+ if (duplex == 1) {
+ kfree(drv->input_buffer);
+ kfree(drv->input_sizes);
+ }
+ kfree(drv->input_buffers);
+
+ if (&(drv->sd_siglist) != NULL)
+ lis_free_elist( &(drv->sd_siglist) );
MOD_DEC_USE_COUNT;
- driver = NULL;
+ /* Null the appropriate driver */
+ drivers[drv->index] = NULL;
+
return 0;
}
-void sparcaudio_output_done(struct sparcaudio_driver * drv, int reclaim)
+void sparcaudio_output_done(struct sparcaudio_driver * drv, int status)
{
- /* Reclaim a buffer unless it's still in the DMA pipe */
- if (reclaim) {
- if (drv->output_count > 0)
- drv->output_count--;
- else
- if (drv->playing_count > 0)
- drv->playing_count--;
- } else
- drv->playing_count++;
-
- /* Point the queue after the "done" buffer. */
- drv->output_size -= drv->output_sizes[drv->output_front];
- drv->output_front = (drv->output_front + 1) % drv->num_output_buffers;
-
- /* If the output queue is empty, shutdown the driver. */
- if (drv->output_count == 0) {
- if (drv->playing_count == 0) {
- /* Stop the lowlevel driver from outputing. */
- drv->ops->stop_output(drv);
- drv->output_active = 0;
-
- /* Wake up any waiting writers or syncers and return. */
- wake_up_interruptible(&drv->output_write_wait);
- wake_up_interruptible(&drv->output_drain_wait);
- return;
- }
- }
-
- /* If we got back a buffer, see if anyone wants to write to it */
- if (reclaim || ((drv->output_count + drv->playing_count)
- < drv->num_output_buffers))
- wake_up_interruptible(&drv->output_write_wait);
+ /*
+ * If !status, just restart current output.
+ * If status & 1, a buffer is finished; make it available again.
+ * If status & 2, a buffer was claimed for DMA and is still in use.
+ *
+ * The playing_count for non-DMA hardware should never be non-zero.
+ */
+ if (status & 1) {
+ if (drv->playing_count)
+ drv->playing_count--;
+ else {
+ drv->output_count--;
+ drv->output_size -= drv->output_sizes[drv->output_front];
+ if (drv->output_notify[drv->output_front] == 1) {
+ drv->output_eof++;
+ drv->output_notify[drv->output_front] = 0;
+ kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
+ }
+ drv->output_front = (drv->output_front + 1) %
+ drv->num_output_buffers;
+ }
+ }
- drv->ops->start_output(drv, drv->output_buffers[drv->output_front],
- drv->output_sizes[drv->output_front]);
+ if (status & 2) {
+ drv->output_count--;
+ drv->playing_count++;
+ drv->output_size -= drv->output_sizes[drv->output_front];
+ if (drv->output_notify[drv->output_front] == 1) {
+ drv->output_eof++;
+ drv->output_notify[drv->output_front] = 0;
+ kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
+ }
+ drv->output_front = (drv->output_front + 1) %
+ drv->num_output_buffers;
+ }
+
+ /* If we've played everything go inactive. */
+ if ((drv->output_count < 1) && (drv->playing_count < 1))
+ drv->output_active = 0;
+
+ /* If we got back a buffer, see if anyone wants to write to it */
+ if ((status & 1) || ((drv->output_count + drv->playing_count)
+ < drv->num_output_buffers))
+ wake_up_interruptible(&drv->output_write_wait);
+
+ /* If the output queue is empty, shut down the driver. */
+ if ((drv->output_count < 1) && (drv->playing_count < 1)) {
+ kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
+
+ /* Stop the lowlevel driver from outputing. */
+ /* drv->ops->stop_output(drv); Should not be necessary -- DJB 5/25/98 */
+ drv->output_active = 0;
+
+ /* Wake up any waiting writers or syncers and return. */
+ wake_up_interruptible(&drv->output_write_wait);
+ wake_up_interruptible(&drv->output_drain_wait);
+ return;
+ }
+ /* Start next block of output if we have it */
+ if (drv->output_count > 0) {
+ drv->ops->start_output(drv, drv->output_buffers[drv->output_front],
+ drv->output_sizes[drv->output_front]);
+ drv->output_active = 1;
+ } else
+ drv->output_active = 0;
}
-void sparcaudio_input_done(struct sparcaudio_driver * drv)
+void sparcaudio_input_done(struct sparcaudio_driver * drv, int status)
{
- /* Point the queue after the "done" buffer. */
- drv->input_front = (drv->input_front + 1) % drv->num_input_buffers;
- drv->input_count++;
-
- /* If the input queue is full, shutdown the driver. */
- if (drv->input_count == drv->num_input_buffers) {
- /* Stop the lowlevel driver from inputing. */
- drv->ops->stop_input(drv);
- drv->input_active = 0;
- } else {
- /* Otherwise, give the driver the next buffer. */
- drv->ops->start_input(drv, drv->input_buffers[drv->input_front],
- 4096);
- }
+ /* Deal with the weird case here */
+ if (drv->duplex == 2) {
+ if (drv->input_count < drv->num_input_buffers)
+ drv->input_count++;
+ drv->ops->start_input(drv, drv->input_buffers[drv->input_front],
+ drv->input_buffer_size);
+ wake_up_interruptible(&drv->input_read_wait);
+ return;
+ }
+
+ /*
+ * If status % 2, they filled a buffer for us.
+ * If status & 2, they took a buffer from us.
+ */
+
+ if ((status % 2) == 1) {
+ drv->input_count++;
+ drv->recording_count--;
+ drv->input_size+=drv->input_buffer_size;
+ }
+
+ if (status > 1) {
+ drv->recording_count++;
+ drv->input_front = (drv->input_front + 1) % drv->num_input_buffers;
+ }
+
+ dprintk(("f%d r%d c%d u%d\n", drv->input_front, drv->input_rear, drv->input_count, drv->recording_count));
+ /* If the input queue is full, shutdown the driver. */
+ if ((drv->input_count + drv->recording_count) == drv->num_input_buffers) {
+ kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
+
+ /* Stop the lowlevel driver from inputing. */
+ drv->ops->stop_input(drv);
+ drv->input_active = 0;
+ } else {
+ /* Otherwise, give the driver the next buffer. */
+ drv->ops->start_input(drv, drv->input_buffers[drv->input_front],
+ drv->input_buffer_size);
+ }
- /* Wake up any tasks that are waiting. */
- wake_up_interruptible(&drv->input_read_wait);
+ /* Wake up any tasks that are waiting. */
+ wake_up_interruptible(&drv->input_read_wait);
}
@@ -219,803 +377,1680 @@
* VFS layer interface
*/
-static loff_t sparcaudio_llseek(struct file * file, loff_t offset, int origin)
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x20100
+static int sparcaudio_select(struct inode * inode, struct file * file,
+ int sel_type, select_table * wait)
{
- return -ESPIPE;
+ struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
+ SPARCAUDIO_DEVICE_SHIFT)];
+
+ switch (sel_type) {
+ case SEL_IN:
+ if (((!file->f_flags & O_NONBLOCK) && drv->input_count) ||
+ (drv->input_size > drv->buffer_size)) {
+ dprintk(("read ready: c%d o%d\n", drv->input_count, drv->input_offset));
+ return 1;
+ }
+ select_wait(&drv->input_read_wait, wait);
+ break;
+ case SEL_OUT:
+ dprintk(("sel out: c%d o%d p%d\n", drv->output_count, drv->output_offset, drv->playing_count));
+ if ((drv->output_count + drv->playing_count) < (drv->num_output_buffers)) {
+ return 1;
+ }
+ select_wait(&drv->output_write_wait, wait);
+ break;
+ case SEL_EX:
+ break;
+ }
+
+ return 0;
+}
+#else
+static unsigned int sparcaudio_poll(struct file *file, poll_table * wait)
+{
+ unsigned int mask = 0;
+ struct inode *inode = file->f_dentry->d_inode;
+ struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
+ SPARCAUDIO_DEVICE_SHIFT)];
+
+ poll_wait(file, &drv->input_read_wait, wait);
+ poll_wait(file, &drv->output_write_wait, wait);
+ if (((!file->f_flags & O_NONBLOCK) && drv->input_count) ||
+ (drv->input_size > drv->buffer_size)) {
+ mask |= POLLIN | POLLRDNORM;
+ }
+ if ((drv->output_count + drv->playing_count) < (drv->num_output_buffers)) {
+ mask |= POLLOUT | POLLWRNORM;
+ }
+ return mask;
}
+#endif
-static ssize_t sparcaudio_read(struct file * file,
- char *buf, size_t count, loff_t *ppos)
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x20100
+static int sparcaudio_lseek(struct inode * inode, struct file * file,
+ off_t offset, int origin)
+#else
+static loff_t sparcaudio_lseek(struct file * file, loff_t offset, int origin)
+#endif
{
- int bytes_to_copy;
+ return -ESPIPE;
+}
- if (! file->f_mode & FMODE_READ)
- return -EINVAL;
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x20100
+static int sparcaudio_read(struct inode * inode, struct file * file,
+ char *buf, int count)
+#else
+static ssize_t sparcaudio_read(struct file * file, char *buf,
+ size_t count, loff_t *ppos)
+#endif
+{
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x200ff
+ struct inode *inode = file->f_dentry->d_inode;
+#endif
+ struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
+ SPARCAUDIO_DEVICE_SHIFT)];
+ int bytes_to_copy, bytes_read = 0, err;
- if (driver->input_count == 0) {
- interruptible_sleep_on(&driver->input_read_wait);
- if (signal_pending(current))
- return -EINTR;
- }
+ if (! file->f_mode & FMODE_READ)
+ return -EINVAL;
- bytes_to_copy = 4096 - driver->input_offset;
- if (bytes_to_copy > count)
- bytes_to_copy = count;
-
- copy_to_user_ret(buf, driver->input_buffers[driver->input_rear]+driver->input_offset,
- bytes_to_copy, -EFAULT);
- driver->input_offset += bytes_to_copy;
-
- if (driver->input_offset >= 4096) {
- driver->input_rear = (driver->input_rear + 1) % driver->num_input_buffers;
- driver->input_count--;
- driver->input_offset = 0;
- }
+ if ((file->f_flags & O_NONBLOCK) && (drv->input_size < count))
+ return -EAGAIN;
+
+ while (count > 0) {
+ if (drv->input_count == 0) {
+ /* This *should* never happen. */
+ if (file->f_flags & O_NONBLOCK) {
+ printk("Warning: audio input leak!\n");
+ return -EAGAIN;
+ }
+ interruptible_sleep_on(&drv->input_read_wait);
+ if (signal_pending(current))
+ return -EINTR;
+ }
+
+ bytes_to_copy = drv->input_buffer_size - drv->input_offset;
+
+ if (bytes_to_copy > count)
+ bytes_to_copy = count;
- return bytes_to_copy;
-}
+ err = verify_area(VERIFY_WRITE, buf, bytes_to_copy);
+ if (err)
+ return err;
+
+ copy_to_user(buf, drv->input_buffers[drv->input_rear]+drv->input_offset,
+ bytes_to_copy);
+
+ drv->input_offset += bytes_to_copy;
+ drv->input_size -= bytes_to_copy;
+ buf += bytes_to_copy;
+ count -= bytes_to_copy;
+ bytes_read += bytes_to_copy;
+
+ if (drv->input_offset >= drv->input_buffer_size) {
+ drv->input_rear = (drv->input_rear + 1) %
+ drv->num_input_buffers;
+ drv->input_count--;
+ drv->input_offset = 0;
+ }
+ /* If we're in "loop audio" mode, try waking up the other side
+ * in case they're waiting for us to eat a block.
+ */
+ if (drv->duplex == 2) {
+ wake_up_interruptible(&drv->output_write_wait);
+ }
+ }
-static void sparcaudio_reorganize_buffers(struct sparcaudio_driver * driver)
-{
- /* It may never matter but if it does this routine will pack */
- /* buffers to free space for more data */
+ return bytes_read;
}
-static void sparcaudio_sync_output(struct sparcaudio_driver * driver)
+static void sparcaudio_sync_output(struct sparcaudio_driver * drv)
{
- unsigned long flags;
+ unsigned long flags;
- /* If the low-level driver is not active, activate it. */
- save_and_cli(flags);
- if ((!driver->output_active) && (driver->output_count > 0)) {
- driver->ops->start_output(driver,
- driver->output_buffers[driver->output_front],
- driver->output_sizes[driver->output_front]);
- driver->output_active = 1;
- }
- restore_flags(flags);
+ /* If the low-level driver is not active, activate it. */
+ save_and_cli(flags);
+ if ((!drv->output_active) && (drv->output_count > 0)) {
+ drv->ops->start_output(drv,
+ drv->output_buffers[drv->output_front],
+ drv->output_sizes[drv->output_front]);
+ drv->output_active = 1;
+ }
+ restore_flags(flags);
}
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x20100
+static int sparcaudio_write(struct inode * inode, struct file * file,
+ const char *buf, int count)
+#else
static ssize_t sparcaudio_write(struct file * file, const char *buf,
- size_t count, loff_t *ppos)
+ size_t count, loff_t *ppos)
+#endif
{
- int bytes_written = 0, bytes_to_copy;
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x200ff
+ struct inode *inode = file->f_dentry->d_inode;
+#endif
+ struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
+ SPARCAUDIO_DEVICE_SHIFT)];
+ int bytes_written = 0, bytes_to_copy, err;
+
+ if (! file->f_mode & FMODE_WRITE)
+ return -EINVAL;
+
+ /*
+ * A signal they want notification when this is processed. Too bad
+ * sys_write doesn't tell us unless you patch it, in 2.0 kernels.
+ */
+ if (count == 0) {
+#ifndef notdef
+ drv->output_eof++;
+ kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
+#else
+ /* Nice code, but the world isn't ready yet... */
+ drv->output_notify[drv->output_rear] = 1;
+#endif
+ }
- if (! file->f_mode & FMODE_WRITE)
- return -EINVAL;
+ /* Loop until all output is written to device. */
+ while (count > 0) {
+ /* Check to make sure that an output buffer is available. */
+ if (drv->num_output_buffers == (drv->output_count + drv->playing_count)) {
+ /* We need buffers, so... */
+ sparcaudio_sync_output(drv);
+ if (file->f_flags & O_NONBLOCK) {
+ return -EAGAIN;
+ }
+ interruptible_sleep_on(&drv->output_write_wait);
+ if (signal_pending(current))
+ return bytes_written > 0 ? bytes_written : -EINTR;
+ }
- /* Loop until all output is written to device. */
- while (count > 0) {
- /* Check to make sure that an output buffer is available. */
- /* If not, make valiant attempt */
- if (driver->num_output_buffers ==
- (driver->output_count + driver->playing_count))
- sparcaudio_reorganize_buffers(driver);
-
- if (driver->num_output_buffers ==
- (driver->output_count + driver->playing_count)) {
- /* We need buffers, so... */
- sparcaudio_sync_output(driver);
- interruptible_sleep_on(&driver->output_write_wait);
- if (signal_pending(current))
- return bytes_written > 0 ? bytes_written : -EINTR;
- }
+ /* No buffers were freed. Go back to sleep */
+ if (drv->num_output_buffers == (drv->output_count + drv->playing_count))
+ continue;
+
+ /* Deal with the weird case of a reader in the write area by trying to
+ * let them keep ahead of us... Go to sleep until they start servicing.
+ */
+ if ((drv->duplex == 2) && (drv->flags & SDF_OPEN_READ) &&
+ (drv->output_rear == drv->input_rear) && (drv->input_count > 0)) {
+ if (file->f_flags & O_NONBLOCK) {
+ return -EAGAIN;
+ }
+ interruptible_sleep_on(&drv->output_write_wait);
+ if (signal_pending(current))
+ return bytes_written > 0 ? bytes_written : -EINTR;
+ }
- /* No buffers were freed. Go back to sleep */
- if (driver->num_output_buffers ==
- (driver->output_count + driver->playing_count))
- continue;
-
- /* Determine how much we can copy in this iteration. */
- bytes_to_copy = count;
- if (bytes_to_copy > 4096)
- bytes_to_copy = 4096;
-
- copy_from_user_ret(driver->output_buffers[driver->output_rear],
- buf, bytes_to_copy, -EFAULT);
-
- /* Update the queue pointers. */
- buf += bytes_to_copy;
- count -= bytes_to_copy;
- bytes_written += bytes_to_copy;
- driver->output_sizes[driver->output_rear] = bytes_to_copy;
- driver->output_rear = (driver->output_rear + 1) % driver->num_output_buffers;
- driver->output_count++;
- driver->output_size += bytes_to_copy;
- }
- sparcaudio_sync_output(driver);
+ /* Determine how much we can copy in this iteration. */
+ bytes_to_copy = count;
+ if (bytes_to_copy > drv->output_buffer_size - drv->output_offset)
+ bytes_to_copy = drv->output_buffer_size - drv->output_offset;
+
+ err = verify_area(VERIFY_READ, buf, bytes_to_copy);
+ if (err)
+ return err;
- /* Return the number of bytes written to the caller. */
- return bytes_written;
+ copy_from_user(drv->output_buffers[drv->output_rear]+drv->output_offset, buf, bytes_to_copy);
+
+ /* Update the queue pointers. */
+ buf += bytes_to_copy;
+ count -= bytes_to_copy;
+ bytes_written += bytes_to_copy;
+
+ /* A block can get orphaned in a flush and not cleaned up. */
+ if (drv->output_offset)
+ drv->output_sizes[drv->output_rear] += bytes_to_copy;
+ else
+ drv->output_sizes[drv->output_rear] = bytes_to_copy;
+
+ drv->output_notify[drv->output_rear] = 0;
+
+ if (drv->output_sizes[drv->output_rear] == drv->output_buffer_size) {
+ drv->output_rear = (drv->output_rear + 1)
+ % drv->num_output_buffers;
+ drv->output_count++;
+ drv->output_offset = 0;
+ } else
+ drv->output_offset += bytes_to_copy;
+
+ drv->output_size+=bytes_to_copy;
+ }
+
+ sparcaudio_sync_output(drv);
+
+ /* Return the number of bytes written to the caller. */
+ return bytes_written;
}
-#define COPY_IN(arg, get) get_user(get, (int *)arg)
-#define COPY_OUT(arg, ret) put_user(ret, (int *)arg)
-
/* Add these in as new devices are supported. Belongs in audioio.h, actually */
-#define SUPPORTED_MIXER_DEVICES (SOUND_MASK_VOLUME)
-#define MONO_DEVICES (SOUND_MASK_BASS | SOUND_MASK_TREBLE | SOUND_MASK_SPEAKER | SOUND_MASK_MIC)
+#define MONO_DEVICES (SOUND_MASK_SPEAKER | SOUND_MASK_MIC)
-static inline int sparcaudio_mixer_ioctl(struct inode * inode, struct file * file,
- unsigned int cmd, unsigned long arg)
+static int sparcaudio_mixer_ioctl(struct inode * inode, struct file * file,
+ unsigned int cmd, unsigned long arg)
{
- int i = 0, j = 0;
- if (_IOC_DIR(cmd) & _IOC_WRITE) {
- /* For any missing routines, pretend we changed things anyhow for now */
- switch (cmd & 0xff) {
- case SOUND_MIXER_VOLUME:
- if (driver->ops->get_output_channels)
- j = driver->ops->get_output_channels(driver);
- COPY_IN(arg, i);
- if (j == 1) {
- i = s_to_m(i);
- if (driver->ops->set_output_volume)
- driver->ops->set_output_volume(driver, i * 255/100);
- if (driver->ops->get_output_volume)
- i = driver->ops->get_output_volume(driver);
- i = m_to_s(i);
- } else {
- /* there should be stuff here which calculates balance and
- volume on a stereo device. will do it eventually */
- i = s_to_g(i);
- if (driver->ops->set_output_volume)
- driver->ops->set_output_volume(driver, i * 255/100);
- if (driver->ops->get_output_volume)
- i = driver->ops->get_output_volume(driver);
- j = s_to_b(i);
- if (driver->ops->set_output_balance)
- driver->ops->set_output_balance(driver, j);
- if (driver->ops->get_output_balance)
- j = driver->ops->get_output_balance(driver);
- i = b_to_s(i,j);
- }
- return COPY_OUT(arg, i);
- default:
- /* Play like we support other things */
- return COPY_OUT(arg, i);
- }
- } else {
- switch (cmd & 0xff) {
- case SOUND_MIXER_RECSRC:
- if (driver->ops->get_input_port)
- i = driver->ops->get_input_port(driver);
- /* only one should ever be selected */
- if (i & AUDIO_ANALOG_LOOPBACK) j = SOUND_MASK_IMIX; /* ? */
- if (i & AUDIO_CD) j = SOUND_MASK_CD;
- if (i & AUDIO_LINE_IN) j = SOUND_MASK_LINE;
- if (i & AUDIO_MICROPHONE) j = SOUND_MASK_MIC;
-
- return COPY_OUT(arg, j);
-
- case SOUND_MIXER_RECMASK:
- if (driver->ops->get_input_ports)
- i = driver->ops->get_input_ports(driver);
- /* what do we support? */
- if (i & AUDIO_MICROPHONE) j |= SOUND_MASK_MIC;
- if (i & AUDIO_LINE_IN) j |= SOUND_MASK_LINE;
- if (i & AUDIO_CD) j |= SOUND_MASK_CD;
- if (i & AUDIO_ANALOG_LOOPBACK) j |= SOUND_MASK_IMIX; /* ? */
-
- return COPY_OUT(arg, j);
-
- case SOUND_MIXER_CAPS: /* mixer capabilities */
- i = SOUND_CAP_EXCL_INPUT;
- return COPY_OUT(arg, i);
-
- case SOUND_MIXER_DEVMASK: /* all supported devices */
- case SOUND_MIXER_STEREODEVS: /* what supports stereo */
- if (driver->ops->get_input_ports)
- i = driver->ops->get_input_ports(driver);
- /* what do we support? */
- if (i & AUDIO_MICROPHONE) j |= SOUND_MASK_MIC;
- if (i & AUDIO_LINE_IN) j |= SOUND_MASK_LINE;
- if (i & AUDIO_CD) j |= SOUND_MASK_CD;
- if (i & AUDIO_ANALOG_LOOPBACK) j |= SOUND_MASK_IMIX; /* ? */
-
- if (driver->ops->get_output_ports)
- i = driver->ops->get_output_ports(driver);
- if (i & AUDIO_SPEAKER) j |= SOUND_MASK_SPEAKER;
- if (i & AUDIO_HEADPHONE) j |= SOUND_MASK_LINE; /* ? */
- if (i & AUDIO_LINE_OUT) j |= SOUND_MASK_LINE;
-
- j |= SOUND_MASK_VOLUME;
-
- if ((cmd & 0xff) == SOUND_MIXER_STEREODEVS)
- j &= ~(MONO_DEVICES);
- return COPY_OUT(arg, j);
-
- case SOUND_MIXER_VOLUME:
- if (driver->ops->get_output_channels)
- j = driver->ops->get_output_channels(driver);
- if (j == 1) {
- if (driver->ops->get_output_volume)
- i = driver->ops->get_output_volume(driver);
- i = m_to_s(i);
- } else {
- /* there should be stuff here which calculates balance and
- volume on a stereo device. will do it eventually */
- if (driver->ops->get_output_volume)
- i = driver->ops->get_output_volume(driver);
- if (driver->ops->get_output_balance)
- j = driver->ops->get_output_balance(driver);
- i = b_to_s(i,j);
- }
- return COPY_OUT(arg, i);
-
- default:
- /* Play like we support other things */
- return COPY_OUT(arg, i);
- }
- }
+ struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
+ SPARCAUDIO_DEVICE_SHIFT)];
+ unsigned long i = 0, j = 0, k = 0;
+
+ k = (unsigned long) &arg;
+
+ switch (cmd) {
+ case SOUND_MIXER_WRITE_RECLEV:
+ case SOUND_MIXER_WRITE_MIC:
+ case SOUND_MIXER_WRITE_CD:
+ case SOUND_MIXER_WRITE_LINE:
+ tprintk(("setting input volume (0x%x)", k));
+ if (drv->ops->get_input_channels)
+ j = drv->ops->get_input_channels(drv);
+ if (j == 1) {
+ i = s_to_m(k);
+ tprintk((" for mono to %d\n", i));
+ if (drv->ops->set_input_volume)
+ drv->ops->set_input_volume(drv, i);
+ if (drv->ops->get_input_volume)
+ i = drv->ops->get_input_volume(drv);
+ i = m_to_s(i);
+ } else {
+ i = s_to_g(k);
+ j = s_to_b(k);
+ tprintk((" for stereo to to %d (bal %d)\n", i, j));
+ if (drv->ops->set_input_volume)
+ drv->ops->set_input_volume(drv, i);
+ if (drv->ops->get_input_volume)
+ i = drv->ops->get_input_volume(drv);
+ if (drv->ops->set_input_balance)
+ drv->ops->set_input_balance(drv, j);
+ if (drv->ops->get_input_balance)
+ j = drv->ops->get_input_balance(drv);
+ i = b_to_s(i,j);
+ }
+ return COPY_OUT(arg, i);
+ case SOUND_MIXER_WRITE_PCM:
+ case SOUND_MIXER_WRITE_VOLUME:
+ case SOUND_MIXER_WRITE_SPEAKER:
+ tprintk(("setting output volume (0x%x)", k));
+ if (drv->ops->get_output_channels)
+ j = drv->ops->get_output_channels(drv);
+ if (j == 1) {
+ i = s_to_m(k);
+ tprintk((" for mono to %d\n", i));
+ if (drv->ops->set_output_volume)
+ drv->ops->set_output_volume(drv, i);
+ if (drv->ops->get_output_volume)
+ i = drv->ops->get_output_volume(drv);
+ i = m_to_s(i);
+ } else {
+ i = s_to_g(k);
+ j = s_to_b(k);
+ tprintk((" for stereo to to %d (bal %d)\n", i, j));
+ if (drv->ops->set_output_volume)
+ drv->ops->set_output_volume(drv, i);
+ if (drv->ops->get_output_volume)
+ i = drv->ops->get_output_volume(drv);
+ if (drv->ops->set_output_balance)
+ drv->ops->set_output_balance(drv, j);
+ if (drv->ops->get_output_balance)
+ j = drv->ops->get_output_balance(drv);
+ i = b_to_s(i,j);
+ }
+ return COPY_OUT(arg, i);
+ case SOUND_MIXER_READ_RECSRC:
+ if (drv->ops->get_input_port)
+ i = drv->ops->get_input_port(drv);
+ /* only one should ever be selected */
+ if (i & AUDIO_ANALOG_LOOPBACK) j = SOUND_MASK_IMIX; /* ? */
+ if (i & AUDIO_CD) j = SOUND_MASK_CD;
+ if (i & AUDIO_LINE_IN) j = SOUND_MASK_LINE;
+ if (i & AUDIO_MICROPHONE) j = SOUND_MASK_MIC;
+
+ return COPY_OUT(arg, j);
+ case SOUND_MIXER_WRITE_RECSRC:
+ if (!drv->ops->set_input_port)
+ return -EINVAL;
+ if (arg & SOUND_MASK_IMIX) j |= AUDIO_ANALOG_LOOPBACK;
+ if (arg & SOUND_MASK_CD) j |= AUDIO_CD;
+ if (arg & SOUND_MASK_LINE) j |= AUDIO_LINE_IN;
+ if (arg & SOUND_MASK_MIC) j |= AUDIO_MICROPHONE;
+ tprintk(("setting inport to %d\n", j));
+ i = drv->ops->set_input_port(drv, j);
+
+ return COPY_OUT(arg, i);
+ case SOUND_MIXER_READ_RECMASK:
+ if (drv->ops->get_input_ports)
+ i = drv->ops->get_input_ports(drv);
+ /* what do we support? */
+ if (i & AUDIO_MICROPHONE) j |= SOUND_MASK_MIC;
+ if (i & AUDIO_LINE_IN) j |= SOUND_MASK_LINE;
+ if (i & AUDIO_CD) j |= SOUND_MASK_CD;
+ if (i & AUDIO_ANALOG_LOOPBACK) j |= SOUND_MASK_IMIX; /* ? */
+
+ return COPY_OUT(arg, j);
+ case SOUND_MIXER_READ_CAPS: /* mixer capabilities */
+ i = SOUND_CAP_EXCL_INPUT;
+ return COPY_OUT(arg, i);
+
+ case SOUND_MIXER_READ_DEVMASK: /* all supported devices */
+ case SOUND_MIXER_READ_STEREODEVS: /* what supports stereo */
+ if (drv->ops->get_input_ports)
+ i = drv->ops->get_input_ports(drv);
+ /* what do we support? */
+ if (i & AUDIO_MICROPHONE) j |= SOUND_MASK_MIC;
+ if (i & AUDIO_LINE_IN) j |= SOUND_MASK_LINE;
+ if (i & AUDIO_CD) j |= SOUND_MASK_CD;
+ if (i & AUDIO_ANALOG_LOOPBACK) j |= SOUND_MASK_IMIX; /* ? */
+
+ if (drv->ops->get_output_ports)
+ i = drv->ops->get_output_ports(drv);
+ if (i & AUDIO_SPEAKER) j |= SOUND_MASK_SPEAKER;
+ if (i & AUDIO_HEADPHONE) j |= SOUND_MASK_LINE; /* ? */
+ if (i & AUDIO_LINE_OUT) j |= SOUND_MASK_LINE;
+
+ j |= SOUND_MASK_VOLUME;
+
+ if (cmd == SOUND_MIXER_READ_STEREODEVS)
+ j &= ~(MONO_DEVICES);
+ return COPY_OUT(arg, j);
+ case SOUND_MIXER_READ_PCM:
+ case SOUND_MIXER_READ_SPEAKER:
+ case SOUND_MIXER_READ_VOLUME:
+ if (drv->ops->get_output_channels)
+ j = drv->ops->get_output_channels(drv);
+ if (j == 1) {
+ if (drv->ops->get_output_volume)
+ i = drv->ops->get_output_volume(drv);
+ i = m_to_s(i);
+ } else {
+ if (drv->ops->get_output_volume)
+ i = drv->ops->get_output_volume(drv);
+ if (drv->ops->get_output_balance)
+ j = drv->ops->get_output_balance(drv);
+ i = b_to_s(i,j);
+ }
+ return COPY_OUT((int *)arg, i);
+ case SOUND_MIXER_READ_RECLEV:
+ case SOUND_MIXER_READ_MIC:
+ case SOUND_MIXER_READ_CD:
+ case SOUND_MIXER_READ_LINE:
+ if (drv->ops->get_input_channels)
+ j = drv->ops->get_input_channels(drv);
+ if (j == 1) {
+ if (drv->ops->get_input_volume)
+ i = drv->ops->get_input_volume(drv);
+ i = m_to_s(i);
+ } else {
+ if (drv->ops->get_input_volume)
+ i = drv->ops->get_input_volume(drv);
+ if (drv->ops->get_input_balance)
+ j = drv->ops->get_input_balance(drv);
+ i = b_to_s(i,j);
+ }
+ return COPY_OUT((int *)arg, i);
+ default:
+ return -EINVAL;
+ }
}
-static int sparcaudio_ioctl(struct inode * inode, struct file * file,
- unsigned int cmd, unsigned long arg)
+/* AUDIO_SETINFO uses these to set values if possible. */
+static __inline__ int
+__sparcaudio_if_set_do(struct sparcaudio_driver *drv,
+ int (*set_function)(struct sparcaudio_driver *, int),
+ int (*get_function)(struct sparcaudio_driver *),
+ unsigned int value)
{
- int retval = 0;
- struct audio_info ainfo;
-
- if (((cmd >> 8) & 0xff) == 'M') {
- return sparcaudio_mixer_ioctl(inode, file, cmd, arg);
- }
-
- switch (cmd) {
- case SNDCTL_DSP_SYNC:
- case AUDIO_DRAIN:
- if (driver->output_count > 0) {
- interruptible_sleep_on(&driver->output_drain_wait);
- retval = signal_pending(current) ? -EINTR : 0;
- }
- break;
-
- case AUDIO_FLUSH:
- if (driver->output_active && (file->f_mode & FMODE_WRITE)) {
- wake_up_interruptible(&driver->output_write_wait);
- driver->ops->stop_output(driver);
- driver->output_active = 0;
- driver->output_front = 0;
- driver->output_rear = 0;
- driver->output_count = 0;
- driver->output_size = 0;
- driver->playing_count = 0;
- }
- if (driver->input_active && (file->f_mode & FMODE_READ)) {
- wake_up_interruptible(&driver->input_read_wait);
- driver->ops->stop_input(driver);
- driver->input_active = 0;
- driver->input_front = 0;
- driver->input_rear = 0;
- driver->input_count = 0;
- driver->recording_count = 0;
- }
- if ((file->f_mode & FMODE_READ) &&
- !(driver->flags & SDF_OPEN_READ)) {
- driver->ops->start_input(driver,
- driver->input_buffers[driver->input_front],
- 4096);
- driver->input_active = 1;
- }
- if ((file->f_mode & FMODE_WRITE) &&
- !(driver->flags & SDF_OPEN_WRITE)) {
- sparcaudio_sync_output(driver);
- }
- break;
-
-
- case AUDIO_GETDEV:
- if (driver->ops->sunaudio_getdev) {
- audio_device_t tmp;
-
- driver->ops->sunaudio_getdev(driver, &tmp);
-
- copy_to_user_ret((audio_device_t *)arg, &tmp, sizeof(tmp), -EFAULT);
- } else
- retval = -EINVAL;
-
- break;
-
- case AUDIO_GETDEV_SUNOS:
- if (driver->ops->sunaudio_getdev_sunos) {
- int tmp=driver->ops->sunaudio_getdev_sunos(driver);
-
- if (put_user(tmp, (int *)arg))
- retval = -EFAULT;
- } else
- retval = -EINVAL;
-
- break;
-
- case AUDIO_GETINFO:
-
- AUDIO_INITINFO(&ainfo);
-
- if (driver->ops->get_input_rate)
- ainfo.record.sample_rate =
- driver->ops->get_input_rate(driver);
- if (driver->ops->get_input_channels)
- ainfo.record.channels =
- driver->ops->get_input_channels(driver);
- if (driver->ops->get_input_precision)
- ainfo.record.precision =
- driver->ops->get_input_precision(driver);
- if (driver->ops->get_input_encoding)
- ainfo.record.encoding =
- driver->ops->get_input_encoding(driver);
- if (driver->ops->get_input_volume)
- ainfo.record.gain =
- driver->ops->get_input_volume(driver);
- if (driver->ops->get_input_port)
- ainfo.record.port =
- driver->ops->get_input_port(driver);
- if (driver->ops->get_input_ports)
- ainfo.record.avail_ports =
- driver->ops->get_input_ports(driver);
- ainfo.record.buffer_size = 4096;
- ainfo.record.samples = 0;
- ainfo.record.eof = 0;
- ainfo.record.pause = 0;
- ainfo.record.error = 0;
- ainfo.record.waiting = 0;
- if (driver->ops->get_input_balance)
- ainfo.record.balance =
- driver->ops->get_input_balance(driver);
- ainfo.record.minordev = 4;
- ainfo.record.open = 1;
- ainfo.record.active = 0;
-
- if (driver->ops->get_output_rate)
- ainfo.play.sample_rate =
- driver->ops->get_output_rate(driver);
- if (driver->ops->get_output_channels)
- ainfo.play.channels =
- driver->ops->get_output_channels(driver);
- if (driver->ops->get_output_precision)
- ainfo.play.precision =
- driver->ops->get_output_precision(driver);
- if (driver->ops->get_output_encoding)
- ainfo.play.encoding =
- driver->ops->get_output_encoding(driver);
- if (driver->ops->get_output_volume)
- ainfo.play.gain =
- driver->ops->get_output_volume(driver);
- if (driver->ops->get_output_port)
- ainfo.play.port =
- driver->ops->get_output_port(driver);
- if (driver->ops->get_output_ports)
- ainfo.play.avail_ports =
- driver->ops->get_output_ports(driver);
- /* This is not defined in the play context in Solaris */
- ainfo.play.buffer_size = 0;
- ainfo.play.samples = 0;
- ainfo.play.eof = 0;
- ainfo.play.pause = 0;
- ainfo.play.error = 0;
- ainfo.play.waiting = waitqueue_active(&driver->open_wait);
- if (driver->ops->get_output_balance)
- ainfo.play.balance =
- (unsigned char)driver->ops->get_output_balance(driver);
- ainfo.play.minordev = 4;
- ainfo.play.open = 1;
- ainfo.play.active = driver->output_active;
-
- if (driver->ops->get_monitor_volume)
- ainfo.monitor_gain =
- driver->ops->get_monitor_volume(driver);
-
- if (driver->ops->get_output_muted)
- ainfo.output_muted =
- (unsigned char)driver->ops->get_output_muted(driver);
-
- copy_to_user_ret((struct audio_info *)arg, &ainfo,
- sizeof(ainfo), -EFAULT);
+ if (set_function && Modify(value))
+ return (int)set_function(drv, value);
+ else if (get_function)
+ return (int)get_function(drv);
+ else
+ return 0;
+}
- break;
+static __inline__ int
+__sparcaudio_if_setc_do(struct sparcaudio_driver *drv,
+ int (*set_function)(struct sparcaudio_driver *, int),
+ int (*get_function)(struct sparcaudio_driver *),
+ unsigned char value)
+{
+ if (set_function && Modifyc(value))
+ return (char)set_function(drv, (int)value);
+ else if (get_function)
+ return (char)get_function(drv);
+ else
+ return 0;
+}
- case AUDIO_SETINFO:
- {
- audio_info_t curinfo, newinfo;
+/* I_FLUSH, I_{G,S}ETSIG, I_NREAD provided for SunOS compatibility
+ *
+ * I must admit I'm quite ashamed of the state of the ioctl handling,
+ * but I do have several optimizations which I'm planning. -- DJB
+ */
- copy_from_user_ret(&ainfo, (audio_info_t *) arg, sizeof(audio_info_t), -EFAULT);
+static int sparcaudio_ioctl(struct inode * inode, struct file * file,
+ unsigned int cmd, unsigned long arg)
+{
+ int retval = 0, i, j, k;
+ int minor = MINOR(inode->i_rdev);
+ struct audio_info ainfo;
+ audio_buf_info binfo;
+ count_info cinfo;
+ struct sparcaudio_driver *drv =
+ drivers[(minor >> SPARCAUDIO_DEVICE_SHIFT)];
+
+ switch (minor & 0xf) {
+ case SPARCAUDIO_MIXER_MINOR:
+ return sparcaudio_mixer_ioctl(inode, file, cmd, arg);
+ case SPARCAUDIO_DSP16_MINOR:
+ case SPARCAUDIO_DSP_MINOR:
+ case SPARCAUDIO_AUDIO_MINOR:
+ case SPARCAUDIO_AUDIOCTL_MINOR:
+ switch (cmd) {
+ case I_GETSIG:
+ case I_GETSIG_SOLARIS:
+ j = (int)lis_get_elist_ent(drv->sd_siglist,current->pid);
+ COPY_OUT(arg, j);
+ retval = drv->input_count;
+ break;
- /* Without these there's no point in trying */
- if (!driver->ops->get_input_precision ||
- !driver->ops->get_input_channels ||
- !driver->ops->get_input_rate ||
- !driver->ops->get_input_encoding ||
- !driver->ops->get_output_precision ||
- !driver->ops->get_output_channels ||
- !driver->ops->get_output_rate ||
- !driver->ops->get_output_encoding)
- {
- retval = -EINVAL;
- break;
+ case I_SETSIG:
+ case I_SETSIG_SOLARIS:
+ if ((minor & 0xf) == SPARCAUDIO_AUDIOCTL_MINOR) {
+ if (!arg){
+ if (lis_del_from_elist(&(drv->sd_siglist),current->pid,S_ALL))
+ retval = -EINVAL;
+ else
+ if (!drv->sd_siglist)
+ drv->sd_sigflags=0;
}
-
- /* Do bounds checking for things which always apply.
- * Follow with enforcement of basic tenets of certain
- * encodings. Everything over and above generic is
- * enforced by the driver, which can assume that
- * Martian cases are taken care of here. */
- if (Modify(ainfo.play.gain) &&
- ((ainfo.play.gain > AUDIO_MAX_GAIN) ||
- (ainfo.play.gain < AUDIO_MIN_GAIN))) {
- /* Need to differentiate this from e.g. the above error */
+ else
+ if (lis_add_to_elist(&(drv->sd_siglist),current->pid,
+ (short)arg))
+ retval = -EAGAIN;
+ else
+ ((drv->sd_sigflags) |= (arg));
+ }
+ break;
+ case I_NREAD:
+ case I_NREAD_SOLARIS:
+ /* According to the Solaris man page, this copies out
+ * the size of the first streams buffer and returns
+ * the number of streams messages on the read queue as
+ * as its retval. (streamio(7I)) This should work. */
+
+ j = (drv->input_count > 0) ? drv->input_buffer_size : 0;
+ COPY_OUT(arg, j);
+ retval = drv->input_count;
+ break;
+ /*
+ * A poor substitute until we do true resizable buffers.
+ */
+ case SNDCTL_DSP_GETISPACE:
+ binfo.fragstotal = drv->num_input_buffers;
+ binfo.fragments = drv->num_input_buffers -
+ (drv->input_count + drv->recording_count);
+ binfo.fragsize = drv->input_buffer_size;
+ binfo.bytes = binfo.fragments*binfo.fragsize;
+
+ retval = verify_area(VERIFY_WRITE, (int *)arg, sizeof(binfo));
+ if (retval) break;
+ copy_to_user(&((char *)arg)[0], (char *)&binfo, sizeof(binfo));
+ break;
+ case SNDCTL_DSP_GETOSPACE:
+ binfo.fragstotal = drv->num_output_buffers;
+ binfo.fragments = drv->num_output_buffers -
+ (drv->output_count + drv->playing_count +
+ (drv->output_offset ? 1 : 0));
+ binfo.fragsize = drv->output_buffer_size;
+ binfo.bytes = binfo.fragments*binfo.fragsize +
+ (drv->output_buffer_size - drv->output_offset);
+
+ retval = verify_area(VERIFY_WRITE, (int *)arg, sizeof(binfo));
+ if (retval) break;
+ copy_to_user(&((char *)arg)[0], (char *)&binfo, sizeof(binfo));
+ break;
+ case SNDCTL_DSP_GETIPTR:
+ case SNDCTL_DSP_GETOPTR:
+ /*
+ * int bytes (number of bytes read/written since last)
+ * int blocks (number of frags read/wrote since last call)
+ * int ptr (current position of dma in buffer)
+ */
+ retval = 0;
+ cinfo.bytes = 0;
+ cinfo.ptr = 0;
+ cinfo.blocks = 0;
+ cinfo.bytes += cinfo.ptr;
+
+ retval = verify_area(VERIFY_WRITE, (int *)arg, sizeof(cinfo));
+ if (retval) break;
+ copy_to_user(&((char *)arg)[0], (char *)&cinfo, sizeof(cinfo));
+ break;
+ case SNDCTL_DSP_SETFRAGMENT:
+ /* XXX Small hack to get ESD/Enlightenment to work. --DaveM */
+ retval = 0;
+ break;
+
+ case SNDCTL_DSP_SUBDIVIDE:
+ /*
+ * I don't understand what I need to do yet.
+ */
+ retval = -EINVAL;
+ break;
+ case SNDCTL_DSP_SETTRIGGER:
+ /* This may not be 100% correct */
+ if ((arg & PCM_ENABLE_INPUT) && drv->ops->get_input_pause &&
+ drv->ops->set_input_pause) {
+ if (drv->ops->get_input_pause(drv))
+ drv->ops->set_input_pause(drv, 0);
+ } else {
+ if (!drv->ops->get_input_pause(drv))
+ drv->ops->set_input_pause(drv, 1);
+ }
+ if ((arg & PCM_ENABLE_OUTPUT) && drv->ops->get_output_pause &&
+ drv->ops->set_output_pause) {
+ if (drv->ops->get_output_pause(drv))
+ drv->ops->set_output_pause(drv, 0);
+ } else {
+ if (!drv->ops->get_output_pause(drv))
+ drv->ops->set_output_pause(drv, 1);
+ }
+ break;
+ case SNDCTL_DSP_GETTRIGGER:
+ j = 0;
+ if (drv->ops->get_input_pause)
+ if (drv->ops->get_input_pause(drv))
+ j = PCM_ENABLE_INPUT;
+ if (drv->ops->get_output_pause)
+ if (drv->ops->get_output_pause(drv))
+ j |= PCM_ENABLE_OUTPUT;
+ COPY_OUT(arg, j);
+ break;
+ case SNDCTL_DSP_GETBLKSIZE:
+ j = drv->input_buffer_size;
+ COPY_OUT(arg, j);
+ break;
+ case SNDCTL_DSP_SPEED:
+ if ((!drv->ops->set_output_rate) &&
+ (!drv->ops->set_input_rate)) {
retval = -EINVAL;
break;
}
- if (Modify(ainfo.record.gain) &&
- ((ainfo.record.gain > AUDIO_MAX_GAIN) ||
- (ainfo.record.gain < AUDIO_MIN_GAIN))) {
+ COPY_IN(arg, i);
+ tprintk(("setting speed to %d\n", i));
+ drv->ops->set_input_rate(drv, i);
+ drv->ops->set_output_rate(drv, i);
+ j = drv->ops->get_output_rate(drv);
+ COPY_OUT(arg, j);
+ break;
+ case SNDCTL_DSP_GETCAPS:
+ /*
+ * All Sparc audio hardware is full duplex.
+ * 4231 supports DMA pointer reading, 7930 is byte at a time.
+ * Pause functionality emulates trigger
+ */
+ j = DSP_CAP_DUPLEX | DSP_CAP_TRIGGER | DSP_CAP_REALTIME;
+ COPY_OUT(arg, j);
+ break;
+ case SNDCTL_DSP_GETFMTS:
+ if (drv->ops->get_formats) {
+ j = drv->ops->get_formats(drv);
+ COPY_OUT(arg, j);
+ } else
retval = -EINVAL;
+ break;
+ case SNDCTL_DSP_SETFMT:
+ /* need to decode into encoding, precision */
+ COPY_IN(arg, i);
+
+ /* handle special case here */
+ if (i == AFMT_QUERY) {
+ j = drv->ops->get_output_encoding(drv);
+ k = drv->ops->get_output_precision(drv);
+ if (j == AUDIO_ENCODING_DVI)
+ i = AFMT_IMA_ADPCM;
+ else if (k == 8) {
+ switch (j) {
+ case AUDIO_ENCODING_ULAW:
+ i = AFMT_MU_LAW;
+ break;
+ case AUDIO_ENCODING_ALAW:
+ i = AFMT_A_LAW;
+ break;
+ case AUDIO_ENCODING_LINEAR8:
+ i = AFMT_U8;
+ break;
+ }
+ } else if (k == 16) {
+ case AUDIO_ENCODING_LINEAR:
+ i = AFMT_S16_BE;
+ break;
+ case AUDIO_ENCODING_LINEARLE:
+ i = AFMT_S16_LE;
+ break;
+ }
+ COPY_OUT(arg, i);
break;
}
- if (Modify(ainfo.monitor_gain) &&
- ((ainfo.monitor_gain > AUDIO_MAX_GAIN) ||
- (ainfo.monitor_gain < AUDIO_MIN_GAIN))) {
+
+ /* Without these there's no point in trying */
+ if (!drv->ops->set_input_precision ||
+ !drv->ops->set_input_encoding ||
+ !drv->ops->set_output_precision ||
+ !drv->ops->set_output_encoding) {
+ eprintk(("missing set routines: failed\n"));
retval = -EINVAL;
break;
- }
- /* Don't need to check less than zero on these */
- if (Modifyc(ainfo.play.balance) &&
- (ainfo.play.balance > AUDIO_RIGHT_BALANCE)) {
+ }
+
+ if (drv->ops->get_formats)
+ if (!(drv->ops->get_formats(drv) & i)) {
+ dprintk(("format not supported\n"));
+ return -EINVAL;
+ }
+
+ switch (i) {
+ case AFMT_S16_LE:
+ ainfo.record.precision = ainfo.play.precision = 16;
+ ainfo.record.encoding = ainfo.play.encoding =
+ AUDIO_ENCODING_LINEARLE;
+ break;
+ case AFMT_S16_BE:
+ ainfo.record.precision = ainfo.play.precision = 16;
+ ainfo.record.encoding = ainfo.play.encoding =
+ AUDIO_ENCODING_LINEAR;
+ break;
+ case AFMT_MU_LAW:
+ ainfo.record.precision = ainfo.play.precision = 8;
+ ainfo.record.encoding = ainfo.play.encoding =
+ AUDIO_ENCODING_ULAW;
+ break;
+ case AFMT_A_LAW:
+ ainfo.record.precision = ainfo.play.precision = 8;
+ ainfo.record.encoding = ainfo.play.encoding =
+ AUDIO_ENCODING_ALAW;
+ break;
+ case AFMT_U8:
+ ainfo.record.precision = ainfo.play.precision = 8;
+ ainfo.record.encoding = ainfo.play.encoding =
+ AUDIO_ENCODING_LINEAR8;
+ break;
+ }
+ tprintk(("setting fmt to enc %d pr %d\n", ainfo.play.encoding,
+ ainfo.play.precision));
+ if ((drv->ops->set_input_precision(drv,
+ ainfo.record.precision)
+ < 0) ||
+ (drv->ops->set_output_precision(drv,
+ ainfo.play.precision)
+ < 0) ||
+ (drv->ops->set_input_encoding(drv,
+ ainfo.record.encoding)
+ < 0) ||
+ (drv->ops->set_output_encoding(drv,
+ ainfo.play.encoding)
+ < 0)) {
+ dprintk(("setting format: failed\n"));
+ return -EINVAL;
+ }
+ COPY_OUT(arg, i);
+ break;
+ case SNDCTL_DSP_CHANNELS:
+ if ((!drv->ops->set_output_channels) &&
+ (!drv->ops->set_input_channels)) {
retval = -EINVAL;
break;
}
- if (Modifyc(ainfo.record.balance) &&
- (ainfo.record.balance > AUDIO_RIGHT_BALANCE)) {
+ COPY_IN(arg, i);
+ drv->ops->set_input_channels(drv, i);
+ drv->ops->set_output_channels(drv, i);
+ i = drv->ops->get_output_channels(drv);
+ COPY_OUT(arg, i);
+ break;
+ case SNDCTL_DSP_STEREO:
+ if ((!drv->ops->set_output_channels) &&
+ (!drv->ops->set_input_channels)) {
retval = -EINVAL;
break;
}
-
- /* If any of these changed, record them all, then make
- * changes atomically. If something fails, back it all out. */
- if (Modify(ainfo.record.precision) ||
- Modify(ainfo.record.sample_rate) ||
- Modify(ainfo.record.channels) ||
- Modify(ainfo.record.encoding) ||
- Modify(ainfo.play.precision) ||
- Modify(ainfo.play.sample_rate) ||
- Modify(ainfo.play.channels) ||
- Modify(ainfo.play.encoding))
- {
- /* If they're trying to change something we
- * have no routine for, they lose */
- if ((!driver->ops->set_input_encoding &&
- Modify(ainfo.record.encoding)) ||
- (!driver->ops->set_input_rate &&
- Modify(ainfo.record.sample_rate)) ||
- (!driver->ops->set_input_precision &&
- Modify(ainfo.record.precision)) ||
- (!driver->ops->set_input_channels &&
- Modify(ainfo.record.channels))) {
- retval = -EINVAL;
- break;
- }
-
- curinfo.record.encoding = driver->ops->get_input_encoding(driver);
- curinfo.record.sample_rate = driver->ops->get_input_rate(driver);
- curinfo.record.precision = driver->ops->get_input_precision(driver);
- curinfo.record.channels = driver->ops->get_input_channels(driver);
- newinfo.record.encoding = Modify(ainfo.record.encoding) ?
- ainfo.record.encoding : curinfo.record.encoding;
- newinfo.record.sample_rate = Modify(ainfo.record.sample_rate)?
- ainfo.record.sample_rate : curinfo.record.sample_rate;
- newinfo.record.precision = Modify(ainfo.record.precision) ?
- ainfo.record.precision : curinfo.record.precision;
- newinfo.record.channels = Modify(ainfo.record.channels) ?
- ainfo.record.channels : curinfo.record.channels;
+ COPY_IN(arg, i);
+ drv->ops->set_input_channels(drv, (i + 1));
+ drv->ops->set_output_channels(drv, (i + 1));
+ i = ((drv->ops->get_output_channels(drv)) - 1);
+ COPY_OUT(arg, i);
+ break;
+ case SNDCTL_DSP_POST:
+ case SNDCTL_DSP_SYNC:
+ case AUDIO_DRAIN:
+ /* Deal with weirdness so we can fill buffers */
+ if (drv->output_offset) {
+ drv->output_offset = 0;
+ drv->output_rear = (drv->output_rear + 1)
+ % drv->num_output_buffers;
+ drv->output_count++;
+ }
+ if (drv->output_count > 0) {
+ sparcaudio_sync_output(drv);
+ /* Only pause for DRAIN/SYNC, not POST */
+ if (cmd != SNDCTL_DSP_POST) {
+ interruptible_sleep_on(&drv->output_drain_wait);
+ retval = (signal_pending(current)) ? -EINTR : 0;
+ }
+ }
+ break;
+ case I_FLUSH:
+ case I_FLUSH_SOLARIS:
+ if (((unsigned int)arg == FLUSHW) ||
+ ((unsigned int)arg == FLUSHRW)) {
+ if (file->f_mode & FMODE_WRITE) {
+ sparcaudio_sync_output(drv);
+ if (drv->output_active) {
+ wake_up_interruptible(&drv->output_write_wait);
+ drv->ops->stop_output(drv);
+ }
+ drv->output_offset = 0;
+ drv->output_active = 0;
+ drv->output_front = 0;
+ drv->output_rear = 0;
+ drv->output_count = 0;
+ drv->output_size = 0;
+ drv->playing_count = 0;
+ drv->output_eof = 0;
+ }
+ }
+ if (((unsigned int)arg == FLUSHR) ||
+ ((unsigned int)arg == FLUSHRW)) {
+ if (drv->input_active && (file->f_mode & FMODE_READ)) {
+ wake_up_interruptible(&drv->input_read_wait);
+ drv->ops->stop_input(drv);
+ drv->input_active = 0;
+ drv->input_front = 0;
+ drv->input_rear = 0;
+ drv->input_count = 0;
+ drv->input_size = 0;
+ drv->input_offset = 0;
+ drv->recording_count = 0;
+ }
+ if ((file->f_mode & FMODE_READ) &&
+ (drv->flags & SDF_OPEN_READ)) {
+ if (drv->duplex == 2)
+ drv->input_count = drv->output_count;
+ drv->ops->start_input(drv,
+ drv->input_buffers[drv->input_front],
+ drv->input_buffer_size);
+ drv->input_active = 1;
+ }
+ }
+ if (((unsigned int)arg == FLUSHW) ||
+ ((unsigned int)arg == FLUSHRW)) {
+ if ((file->f_mode & FMODE_WRITE) &&
+ !(drv->flags & SDF_OPEN_WRITE)) {
+ kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
+ sparcaudio_sync_output(drv);
+ }
+ }
+ break;
+ case SNDCTL_DSP_RESET:
+ case AUDIO_FLUSH:
+ if (drv->output_active && (file->f_mode & FMODE_WRITE)) {
+ wake_up_interruptible(&drv->output_write_wait);
+ drv->ops->stop_output(drv);
+ drv->output_active = 0;
+ drv->output_front = 0;
+ drv->output_rear = 0;
+ drv->output_count = 0;
+ drv->output_size = 0;
+ drv->playing_count = 0;
+ drv->output_offset = 0;
+ drv->output_eof = 0;
+ }
+ if (drv->input_active && (file->f_mode & FMODE_READ)) {
+ wake_up_interruptible(&drv->input_read_wait);
+ drv->ops->stop_input(drv);
+ drv->input_active = 0;
+ drv->input_front = 0;
+ drv->input_rear = 0;
+ drv->input_count = 0;
+ drv->input_size = 0;
+ drv->input_offset = 0;
+ drv->recording_count = 0;
+ }
+ if ((file->f_mode & FMODE_READ) &&
+ !(drv->flags & SDF_OPEN_READ)) {
+ drv->ops->start_input(drv,
+ drv->input_buffers[drv->input_front],
+ drv->input_buffer_size);
+ drv->input_active = 1;
+ }
+ if ((file->f_mode & FMODE_WRITE) &&
+ !(drv->flags & SDF_OPEN_WRITE)) {
+ sparcaudio_sync_output(drv);
+ }
+ break;
+ case AUDIO_GETDEV:
+ if (drv->ops->sunaudio_getdev) {
+ audio_device_t tmp;
+
+ retval = verify_area(VERIFY_WRITE, (void *)arg,
+ sizeof(audio_device_t));
+ if (!retval)
+ drv->ops->sunaudio_getdev(drv, &tmp);
+ copy_to_user((audio_device_t *)arg, &tmp, sizeof(tmp));
+ } else
+ retval = -EINVAL;
+ break;
+ case AUDIO_GETDEV_SUNOS:
+ if (drv->ops->sunaudio_getdev_sunos) {
+ int tmp = drv->ops->sunaudio_getdev_sunos(drv);
+
+ retval = verify_area(VERIFY_WRITE, (void *)arg, sizeof(int));
+ if (!retval)
+ copy_to_user((int *)arg, &tmp, sizeof(tmp));
+ } else
+ retval = -EINVAL;
+ break;
+ case AUDIO_GETINFO:
+ AUDIO_INITINFO(&ainfo);
- switch (newinfo.record.encoding) {
- case AUDIO_ENCODING_ALAW:
- case AUDIO_ENCODING_ULAW:
- if (newinfo.record.precision != 8) {
- retval = -EINVAL;
- break;
- }
- if (newinfo.record.channels != 1) {
- retval = -EINVAL;
- break;
- }
- break;
- case AUDIO_ENCODING_LINEAR:
- case AUDIO_ENCODING_LINEARLE:
- if (newinfo.record.precision != 16) {
- retval = -EINVAL;
- break;
- }
- if (newinfo.record.channels != 1 &&
- newinfo.record.channels != 2)
- {
- retval = -EINVAL;
- break;
- }
- break;
- case AUDIO_ENCODING_LINEAR8:
- if (newinfo.record.precision != 8) {
- retval = -EINVAL;
- break;
- }
- if (newinfo.record.channels != 1 &&
- newinfo.record.channels != 2)
- {
- retval = -EINVAL;
- break;
- }
- }
+ if (drv->ops->get_input_rate)
+ ainfo.record.sample_rate =
+ drv->ops->get_input_rate(drv);
+ else
+ ainfo.record.sample_rate = (8000);
+ if (drv->ops->get_input_channels)
+ ainfo.record.channels =
+ drv->ops->get_input_channels(drv);
+ else
+ ainfo.record.channels = (1);
+ if (drv->ops->get_input_precision)
+ ainfo.record.precision =
+ drv->ops->get_input_precision(drv);
+ else
+ ainfo.record.precision = (8);
+ if (drv->ops->get_input_encoding)
+ ainfo.record.encoding =
+ drv->ops->get_input_encoding(drv);
+ else
+ ainfo.record.encoding = (AUDIO_ENCODING_ULAW);
+ if (drv->ops->get_input_volume)
+ ainfo.record.gain =
+ drv->ops->get_input_volume(drv);
+ else
+ ainfo.record.gain = (0);
+ if (drv->ops->get_input_port)
+ ainfo.record.port =
+ drv->ops->get_input_port(drv);
+ else
+ ainfo.record.port = (0);
+ if (drv->ops->get_input_ports)
+ ainfo.record.avail_ports =
+ drv->ops->get_input_ports(drv);
+ else
+ ainfo.record.avail_ports = (0);
+ /* To make e.g. vat happy, we let them think they control this */
+ ainfo.record.buffer_size = drv->buffer_size;
+ if (drv->ops->get_input_samples)
+ ainfo.record.samples = drv->ops->get_input_samples(drv);
+ else
+ ainfo.record.samples = 0;
+ /* This is undefined in the record context in Solaris */
+ ainfo.record.eof = 0;
+ if (drv->ops->get_input_pause)
+ ainfo.record.pause =
+ drv->ops->get_input_pause(drv);
+ else
+ ainfo.record.pause = 0;
+ if (drv->ops->get_input_error)
+ ainfo.record.error =
+ (unsigned char)drv->ops->get_input_error(drv);
+ else
+ ainfo.record.error = 0;
+ ainfo.record.waiting = 0;
+ if (drv->ops->get_input_balance)
+ ainfo.record.balance =
+ (unsigned char)drv->ops->get_input_balance(drv);
+ else
+ ainfo.record.balance = (unsigned char)(AUDIO_MID_BALANCE);
+ ainfo.record.minordev = 4 + (minor << SPARCAUDIO_DEVICE_SHIFT);
+ ainfo.record.open = (drv->flags & SDF_OPEN_READ);
+ ainfo.record.active = 0;
+
+ if (drv->ops->get_output_rate)
+ ainfo.play.sample_rate =
+ drv->ops->get_output_rate(drv);
+ else
+ ainfo.play.sample_rate = (8000);
+ if (drv->ops->get_output_channels)
+ ainfo.play.channels =
+ drv->ops->get_output_channels(drv);
+ else
+ ainfo.play.channels = (1);
+ if (drv->ops->get_output_precision)
+ ainfo.play.precision =
+ drv->ops->get_output_precision(drv);
+ else
+ ainfo.play.precision = (8);
+ if (drv->ops->get_output_encoding)
+ ainfo.play.encoding =
+ drv->ops->get_output_encoding(drv);
+ else
+ ainfo.play.encoding = (AUDIO_ENCODING_ULAW);
+ if (drv->ops->get_output_volume)
+ ainfo.play.gain =
+ drv->ops->get_output_volume(drv);
+ else
+ ainfo.play.gain = (0);
+ if (drv->ops->get_output_port)
+ ainfo.play.port =
+ drv->ops->get_output_port(drv);
+ else
+ ainfo.play.port = (0);
+ if (drv->ops->get_output_ports)
+ ainfo.play.avail_ports =
+ drv->ops->get_output_ports(drv);
+ else
+ ainfo.play.avail_ports = (0);
+ /* This is not defined in the play context in Solaris */
+ ainfo.play.buffer_size = 0;
+ if (drv->ops->get_output_samples)
+ ainfo.play.samples = drv->ops->get_output_samples(drv);
+ else
+ ainfo.play.samples = 0;
+ ainfo.play.eof = drv->output_eof;
+ if (drv->ops->get_output_pause)
+ ainfo.play.pause =
+ drv->ops->get_output_pause(drv);
+ else
+ ainfo.play.pause = 0;
+ if (drv->ops->get_output_error)
+ ainfo.play.error =
+ (unsigned char)drv->ops->get_output_error(drv);
+ else
+ ainfo.play.error = 0;
+ ainfo.play.waiting = waitqueue_active(&drv->open_wait);
+ if (drv->ops->get_output_balance)
+ ainfo.play.balance =
+ (unsigned char)drv->ops->get_output_balance(drv);
+ else
+ ainfo.play.balance = (unsigned char)(AUDIO_MID_BALANCE);
+ ainfo.play.minordev = 4 + (minor << SPARCAUDIO_DEVICE_SHIFT);
+ ainfo.play.open = (drv->flags & SDF_OPEN_WRITE);
+ ainfo.play.active = drv->output_active;
+
+ if (drv->ops->get_monitor_volume)
+ ainfo.monitor_gain =
+ drv->ops->get_monitor_volume(drv);
+ else
+ ainfo.monitor_gain = (0);
+
+ if (drv->ops->get_output_muted)
+ ainfo.output_muted =
+ (unsigned char)drv->ops->get_output_muted(drv);
+ else
+ ainfo.output_muted = (unsigned char)(0);
+
+ retval = verify_area(VERIFY_WRITE, (void *)arg,
+ sizeof(struct audio_info));
+ if (retval < 0)
+ break;
- if (retval < 0)
- break;
+ copy_to_user((struct audio_info *)arg, &ainfo, sizeof(ainfo));
+
+ break;
+ case AUDIO_SETINFO:
+ {
+ audio_info_t curinfo, newinfo;
+
+ if (verify_area(VERIFY_READ, (audio_info_t *)arg,
+ sizeof(audio_info_t))) {
+ dprintk(("verify_area failed\n"));
+ return -EINVAL;
+ }
+ copy_from_user(&ainfo, (audio_info_t *)arg, sizeof(audio_info_t));
- /* If they're trying to change something we
- * have no routine for, they lose */
- if ((!driver->ops->set_output_encoding &&
- Modify(ainfo.play.encoding)) ||
- (!driver->ops->set_output_rate &&
- Modify(ainfo.play.sample_rate)) ||
- (!driver->ops->set_output_precision &&
- Modify(ainfo.play.precision)) ||
- (!driver->ops->set_output_channels &&
- Modify(ainfo.play.channels))) {
+ /* Without these there's no point in trying */
+ if (!drv->ops->get_input_precision ||
+ !drv->ops->get_input_channels ||
+ !drv->ops->get_input_rate ||
+ !drv->ops->get_input_encoding ||
+ !drv->ops->get_output_precision ||
+ !drv->ops->get_output_channels ||
+ !drv->ops->get_output_rate ||
+ !drv->ops->get_output_encoding)
+ {
+ eprintk(("missing get routines: failed\n"));
retval = -EINVAL;
break;
- }
-
- curinfo.play.encoding = driver->ops->get_output_encoding(driver);
- curinfo.play.sample_rate = driver->ops->get_output_rate(driver);
- curinfo.play.precision = driver->ops->get_output_precision(driver);
- curinfo.play.channels = driver->ops->get_output_channels(driver);
- newinfo.play.encoding = Modify(ainfo.play.encoding) ?
- ainfo.play.encoding : curinfo.play.encoding;
- newinfo.play.sample_rate = Modify(ainfo.play.sample_rate) ?
- ainfo.play.sample_rate : curinfo.play.sample_rate;
- newinfo.play.precision = Modify(ainfo.play.precision) ?
- ainfo.play.precision : curinfo.play.precision;
- newinfo.play.channels = Modify(ainfo.play.channels) ?
- ainfo.play.channels : curinfo.play.channels;
-
- switch (newinfo.play.encoding) {
- case AUDIO_ENCODING_ALAW:
- case AUDIO_ENCODING_ULAW:
- if (newinfo.play.precision != 8) {
- retval = -EINVAL;
- break;
- }
- if (newinfo.play.channels != 1) {
- retval = -EINVAL;
- break;
- }
- break;
- case AUDIO_ENCODING_LINEAR:
- case AUDIO_ENCODING_LINEARLE:
- if (newinfo.play.precision != 16) {
- retval = -EINVAL;
- break;
- }
- if (newinfo.play.channels != 1 &&
- newinfo.play.channels != 2)
- {
- retval = -EINVAL;
- break;
- }
- break;
- case AUDIO_ENCODING_LINEAR8:
- if (newinfo.play.precision != 8) {
- retval = -EINVAL;
- break;
- }
- if (newinfo.play.channels != 1 &&
- newinfo.play.channels != 2)
- {
- retval = -EINVAL;
- break;
- }
- }
-
- if (retval < 0)
- break;
+ }
- /* If we got this far, we're at least sane with
- * respect to generics. Try the changes. */
- if ((driver->ops->set_input_precision(driver, ainfo.record.precision) < 0) ||
- (driver->ops->set_output_precision(driver, ainfo.play.precision) < 0) ||
- (driver->ops->set_input_channels(driver, ainfo.record.channels) < 0) ||
- (driver->ops->set_output_channels(driver, ainfo.play.channels) < 0) ||
- (driver->ops->set_input_rate(driver, ainfo.record.sample_rate) < 0) ||
- (driver->ops->set_output_rate(driver, ainfo.play.sample_rate) < 0) ||
- (driver->ops->set_input_encoding(driver, ainfo.record.encoding) < 0) ||
- (driver->ops->set_output_encoding(driver, ainfo.play.encoding) < 0))
- {
- /* Pray we can set it all back. If not, uh... */
- driver->ops->set_input_precision(driver, curinfo.record.precision);
- driver->ops->set_output_precision(driver, curinfo.play.precision);
- driver->ops->set_input_channels(driver, curinfo.record.channels);
- driver->ops->set_output_channels(driver, curinfo.play.channels);
- driver->ops->set_input_rate(driver, curinfo.record.sample_rate);
- driver->ops->set_output_rate(driver, curinfo.play.sample_rate);
- driver->ops->set_input_encoding(driver, curinfo.record.encoding);
- driver->ops->set_output_encoding(driver, curinfo.play.encoding);
+ /* Do bounds checking for things which always apply.
+ * Follow with enforcement of basic tenets of certain
+ * encodings. Everything over and above generic is
+ * enforced by the driver, which can assume that
+ * Martian cases are taken care of here. */
+ if (Modify(ainfo.play.gain) &&
+ ((ainfo.play.gain > AUDIO_MAX_GAIN) ||
+ (ainfo.play.gain < AUDIO_MIN_GAIN))) {
+ /* Need to differentiate this from e.g. the above error */
+ eprintk(("play gain bounds: failed %d\n", ainfo.play.gain));
+ retval = -EINVAL;
+ break;
+ }
+ if (Modify(ainfo.record.gain) &&
+ ((ainfo.record.gain > AUDIO_MAX_GAIN) ||
+ (ainfo.record.gain < AUDIO_MIN_GAIN))) {
+ eprintk(("rec gain bounds: failed %d\n", ainfo.record.gain));
+ retval = -EINVAL;
+ break;
+ }
+ if (Modify(ainfo.monitor_gain) &&
+ ((ainfo.monitor_gain > AUDIO_MAX_GAIN) ||
+ (ainfo.monitor_gain < AUDIO_MIN_GAIN))) {
+ eprintk(("monitor gain bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ /* Don't need to check less than zero on these */
+ if (Modifyc(ainfo.play.balance) &&
+ (ainfo.play.balance > AUDIO_RIGHT_BALANCE)) {
+ eprintk(("play balance bounds: %d failed\n",
+ (int)ainfo.play.balance));
+ retval = -EINVAL;
+ break;
+ }
+ if (Modifyc(ainfo.record.balance) &&
+ (ainfo.record.balance > AUDIO_RIGHT_BALANCE)) {
+ eprintk(("rec balance bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+
+ /* If any of these changed, record them all, then make
+ * changes atomically. If something fails, back it all out. */
+ if (Modify(ainfo.record.precision) ||
+ Modify(ainfo.record.sample_rate) ||
+ Modify(ainfo.record.channels) ||
+ Modify(ainfo.record.encoding) ||
+ Modify(ainfo.play.precision) ||
+ Modify(ainfo.play.sample_rate) ||
+ Modify(ainfo.play.channels) ||
+ Modify(ainfo.play.encoding))
+ {
+ /* If they're trying to change something we
+ * have no routine for, they lose */
+ if ((!drv->ops->set_input_encoding &&
+ Modify(ainfo.record.encoding)) ||
+ (!drv->ops->set_input_rate &&
+ Modify(ainfo.record.sample_rate)) ||
+ (!drv->ops->set_input_precision &&
+ Modify(ainfo.record.precision)) ||
+ (!drv->ops->set_input_channels &&
+ Modify(ainfo.record.channels))) {
+ eprintk(("rec set no routines: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+
+ curinfo.record.encoding =
+ drv->ops->get_input_encoding(drv);
+ curinfo.record.sample_rate =
+ drv->ops->get_input_rate(drv);
+ curinfo.record.precision =
+ drv->ops->get_input_precision(drv);
+ curinfo.record.channels =
+ drv->ops->get_input_channels(drv);
+ newinfo.record.encoding = Modify(ainfo.record.encoding) ?
+ ainfo.record.encoding : curinfo.record.encoding;
+ newinfo.record.sample_rate =
+ Modify(ainfo.record.sample_rate)?
+ ainfo.record.sample_rate : curinfo.record.sample_rate;
+ newinfo.record.precision = Modify(ainfo.record.precision) ?
+ ainfo.record.precision : curinfo.record.precision;
+ newinfo.record.channels = Modify(ainfo.record.channels) ?
+ ainfo.record.channels : curinfo.record.channels;
+
+ switch (newinfo.record.encoding) {
+ case AUDIO_ENCODING_ALAW:
+ case AUDIO_ENCODING_ULAW:
+ if (newinfo.record.precision != 8) {
+ eprintk(("rec law precision bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ if (newinfo.record.channels != 1) {
+ eprintk(("rec law channel bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ break;
+ case AUDIO_ENCODING_LINEAR:
+ case AUDIO_ENCODING_LINEARLE:
+ if (newinfo.record.precision != 16) {
+ eprintk(("rec lin precision bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ if (newinfo.record.channels != 1 &&
+ newinfo.record.channels != 2)
+ {
+ eprintk(("rec lin channel bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ break;
+ case AUDIO_ENCODING_LINEAR8:
+ if (newinfo.record.precision != 8) {
+ eprintk(("rec lin8 precision bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ if (newinfo.record.channels != 1 &&
+ newinfo.record.channels != 2)
+ {
+ eprintk(("rec lin8 channel bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ }
+
+ if (retval < 0)
+ break;
+
+ /* If they're trying to change something we
+ * have no routine for, they lose */
+ if ((!drv->ops->set_output_encoding &&
+ Modify(ainfo.play.encoding)) ||
+ (!drv->ops->set_output_rate &&
+ Modify(ainfo.play.sample_rate)) ||
+ (!drv->ops->set_output_precision &&
+ Modify(ainfo.play.precision)) ||
+ (!drv->ops->set_output_channels &&
+ Modify(ainfo.play.channels))) {
+ eprintk(("play set no routine: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+
+ curinfo.play.encoding =
+ drv->ops->get_output_encoding(drv);
+ curinfo.play.sample_rate =
+ drv->ops->get_output_rate(drv);
+ curinfo.play.precision =
+ drv->ops->get_output_precision(drv);
+ curinfo.play.channels =
+ drv->ops->get_output_channels(drv);
+ newinfo.play.encoding = Modify(ainfo.play.encoding) ?
+ ainfo.play.encoding : curinfo.play.encoding;
+ newinfo.play.sample_rate = Modify(ainfo.play.sample_rate) ?
+ ainfo.play.sample_rate : curinfo.play.sample_rate;
+ newinfo.play.precision = Modify(ainfo.play.precision) ?
+ ainfo.play.precision : curinfo.play.precision;
+ newinfo.play.channels = Modify(ainfo.play.channels) ?
+ ainfo.play.channels : curinfo.play.channels;
+
+ switch (newinfo.play.encoding) {
+ case AUDIO_ENCODING_ALAW:
+ case AUDIO_ENCODING_ULAW:
+ if (newinfo.play.precision != 8) {
+ eprintk(("play law precision bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ if (newinfo.play.channels != 1) {
+ eprintk(("play law channel bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ break;
+ case AUDIO_ENCODING_LINEAR:
+ case AUDIO_ENCODING_LINEARLE:
+ if (newinfo.play.precision != 16) {
+ eprintk(("play lin precision bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ if (newinfo.play.channels != 1 &&
+ newinfo.play.channels != 2)
+ {
+ eprintk(("play lin channel bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ break;
+ case AUDIO_ENCODING_LINEAR8:
+ if (newinfo.play.precision != 8) {
+ eprintk(("play lin8 precision bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
+ if (newinfo.play.channels != 1 &&
+ newinfo.play.channels != 2)
+ {
+ eprintk(("play lin8 channel bounds: failed\n"));
+ retval = -EINVAL;
+ break;
+ }
}
+
+ if (retval < 0)
+ break;
+
+ /* If we got this far, we're at least sane with
+ * respect to generics. Try the changes. */
+ if ((drv->ops->set_input_channels &&
+ (drv->ops->set_input_channels(drv,
+ newinfo.record.channels)
+ < 0)) ||
+ (drv->ops->set_output_channels &&
+ (drv->ops->set_output_channels(drv,
+ newinfo.play.channels)
+ < 0)) ||
+ (drv->ops->set_input_rate &&
+ (drv->ops->set_input_rate(drv,
+ newinfo.record.sample_rate)
+ < 0)) ||
+ (drv->ops->set_output_rate &&
+ (drv->ops->set_output_rate(drv,
+ newinfo.play.sample_rate)
+ < 0)) ||
+ (drv->ops->set_input_precision &&
+ (drv->ops->set_input_precision(drv,
+ newinfo.record.precision)
+ < 0)) ||
+ (drv->ops->set_output_precision &&
+ (drv->ops->set_output_precision(drv,
+ newinfo.play.precision)
+ < 0)) ||
+ (drv->ops->set_input_encoding &&
+ (drv->ops->set_input_encoding(drv,
+ newinfo.record.encoding)
+ < 0)) ||
+ (drv->ops->set_output_encoding &&
+ (drv->ops->set_output_encoding(drv,
+ newinfo.play.encoding)
+ < 0)))
+ {
+ dprintk(("setting format: failed\n"));
+ /* Pray we can set it all back. If not, uh... */
+ if (drv->ops->set_input_channels)
+ drv->ops->set_input_channels(drv,
+ curinfo.record.channels);
+ if (drv->ops->set_output_channels)
+ drv->ops->set_output_channels(drv,
+ curinfo.play.channels);
+ if (drv->ops->set_input_rate)
+ drv->ops->set_input_rate(drv,
+ curinfo.record.sample_rate);
+ if (drv->ops->set_output_rate)
+ drv->ops->set_output_rate(drv,
+ curinfo.play.sample_rate);
+ if (drv->ops->set_input_precision)
+ drv->ops->set_input_precision(drv,
+ curinfo.record.precision);
+ if (drv->ops->set_output_precision)
+ drv->ops->set_output_precision(drv,
+ curinfo.play.precision);
+ if (drv->ops->set_input_encoding)
+ drv->ops->set_input_encoding(drv,
+ curinfo.record.encoding);
+ if (drv->ops->set_output_encoding)
+ drv->ops->set_output_encoding(drv,
+ curinfo.play.encoding);
+ retval = -EINVAL;
+ break;
+ }
+ }
+
+ if (retval < 0)
+ break;
+
+ newinfo.record.balance =
+ __sparcaudio_if_setc_do(drv,
+ drv->ops->set_input_balance,
+ drv->ops->get_input_balance,
+ ainfo.record.balance);
+ newinfo.play.balance =
+ __sparcaudio_if_setc_do(drv,
+ drv->ops->set_output_balance,
+ drv->ops->get_output_balance,
+ ainfo.play.balance);
+ newinfo.record.error =
+ __sparcaudio_if_setc_do(drv,
+ drv->ops->set_input_error,
+ drv->ops->get_input_error,
+ ainfo.record.error);
+ newinfo.play.error =
+ __sparcaudio_if_setc_do(drv,
+ drv->ops->set_output_error,
+ drv->ops->get_output_error,
+ ainfo.play.error);
+ newinfo.output_muted =
+ __sparcaudio_if_setc_do(drv,
+ drv->ops->set_output_muted,
+ drv->ops->get_output_muted,
+ ainfo.output_muted);
+ newinfo.record.gain =
+ __sparcaudio_if_set_do(drv,
+ drv->ops->set_input_volume,
+ drv->ops->get_input_volume,
+ ainfo.record.gain);
+ newinfo.play.gain =
+ __sparcaudio_if_set_do(drv,
+ drv->ops->set_output_volume,
+ drv->ops->get_output_volume,
+ ainfo.play.gain);
+ newinfo.record.port =
+ __sparcaudio_if_set_do(drv,
+ drv->ops->set_input_port,
+ drv->ops->get_input_port,
+ ainfo.record.port);
+ newinfo.play.port =
+ __sparcaudio_if_set_do(drv,
+ drv->ops->set_output_port,
+ drv->ops->get_output_port,
+ ainfo.play.port);
+ newinfo.record.samples =
+ __sparcaudio_if_set_do(drv,
+ drv->ops->set_input_samples,
+ drv->ops->get_input_samples,
+ ainfo.record.samples);
+ newinfo.play.samples =
+ __sparcaudio_if_set_do(drv,
+ drv->ops->set_output_samples,
+ drv->ops->get_output_samples,
+ ainfo.play.samples);
+ newinfo.monitor_gain =
+ __sparcaudio_if_set_do(drv,
+ drv->ops->set_monitor_volume,
+ drv->ops->get_monitor_volume,
+ ainfo.monitor_gain);
+
+ if (Modify(ainfo.record.buffer_size)) {
+ /* Should sanity check this */
+ newinfo.record.buffer_size = ainfo.record.buffer_size;
+ drv->buffer_size = ainfo.record.buffer_size;
+ } else
+ newinfo.record.buffer_size = drv->buffer_size;
+
+
+ if (Modify(ainfo.play.eof)) {
+ ainfo.play.eof = newinfo.play.eof;
+ newinfo.play.eof = drv->output_eof;
+ drv->output_eof = ainfo.play.eof;
+ } else
+ newinfo.play.eof = drv->output_eof;
+
+ if (drv->flags & SDF_OPEN_READ) {
+ newinfo.record.pause =
+ __sparcaudio_if_setc_do(drv,
+ drv->ops->set_input_pause,
+ drv->ops->get_input_pause,
+ ainfo.record.pause);
+ } else if (drv->ops->get_input_pause) {
+ newinfo.record.pause = drv->ops->get_input_pause(drv);
+ } else newinfo.record.pause = 0;
+
+ if (drv->flags & SDF_OPEN_WRITE) {
+ newinfo.play.pause =
+ __sparcaudio_if_setc_do(drv,
+ drv->ops->set_output_pause,
+ drv->ops->get_output_pause,
+ ainfo.play.pause);
+ } else if (drv->ops->get_output_pause) {
+ newinfo.play.pause = drv->ops->get_output_pause(drv);
+ } else newinfo.play.pause = 0;
+
+ retval = verify_area(VERIFY_WRITE, (void *)arg,
+ sizeof(struct audio_info));
+
+ /* Even if we fail, if we made changes let's try notification */
+ if (!retval)
+ copy_to_user((struct audio_info *)arg, &newinfo,
+ sizeof(newinfo));
+
+#ifdef REAL_AUDIO_SIGNALS
+ kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
+#endif
+ break;
}
- /* Maybe this should be a routine instead of a macro */
-#define IF_SET_DO(x,y) if ((x) && Modify(y)) x(driver, y)
-#define IF_SETC_DO(x,y) if ((x) && Modifyc(y)) x(driver, y)
- IF_SETC_DO(driver->ops->set_input_balance, (int)ainfo.record.balance);
- IF_SETC_DO(driver->ops->set_output_balance, (int)ainfo.play.balance);
- IF_SET_DO(driver->ops->set_input_volume, ainfo.record.gain);
- IF_SET_DO(driver->ops->set_output_volume, ainfo.play.gain);
- IF_SET_DO(driver->ops->set_input_port, ainfo.record.port);
- IF_SET_DO(driver->ops->set_output_port, ainfo.play.port);
- IF_SET_DO(driver->ops->set_monitor_volume, ainfo.monitor_gain);
- IF_SETC_DO(driver->ops->set_output_muted, (int)ainfo.output_muted);
-#undef IF_SET_DO
-#undef IF_SETC_DO
-
- break;
+
+ default:
+ if (drv->ops->ioctl)
+ retval = drv->ops->ioctl(inode,file,cmd,arg,drv);
+ else
+ retval = -EINVAL;
}
-
+ break;
+ case SPARCAUDIO_STATUS_MINOR:
+ eprintk(("status minor not yet implemented\n"));
+ retval = -EINVAL;
default:
- if (driver->ops->ioctl)
- retval = driver->ops->ioctl(inode,file,cmd,arg,driver);
- else {
- retval = -EINVAL;
- }
+ eprintk(("unknown minor device number\n"));
+ retval = -EINVAL;
}
-
+
return retval;
}
-static int sparcaudioctl_release(struct inode * inode, struct file * file)
+static int sparcaudioctl_release_ret(struct inode * inode, struct file * file)
{
- MOD_DEC_USE_COUNT;
+ MOD_DEC_USE_COUNT;
+ return 0;
+}
- return 0;
+/* For 2.0 kernels */
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x20100
+static void sparcaudioctl_release(struct inode * inode, struct file * file)
+{
+ sparcaudioctl_release_ret(inode, file);
}
+#endif
static struct file_operations sparcaudioctl_fops = {
- NULL,
- NULL,
- NULL,
- NULL, /* sparcaudio_readdir */
- NULL, /* sparcaudio_select */
- sparcaudio_ioctl,
- NULL, /* sparcaudio_mmap */
- NULL,
- NULL, /* flush */
- sparcaudioctl_release
+ NULL,
+ NULL,
+ NULL,
+ NULL, /* sparcaudio_readdir */
+ sparcaudio_select,
+ sparcaudio_ioctl,
+ NULL, /* sparcaudio_mmap */
+ NULL,
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x200ff
+ NULL, /* sparcaudio_flush */
+#endif
+ sparcaudioctl_release,
};
static int sparcaudio_open(struct inode * inode, struct file * file)
{
- int minor = MINOR(inode->i_rdev);
- int err;
+ int minor = MINOR(inode->i_rdev);
+ struct sparcaudio_driver *drv =
+ drivers[(minor >> SPARCAUDIO_DEVICE_SHIFT)];
+ int err;
+
+ /* A low-level audio driver must exist. */
+ if (!drv)
+ return -ENODEV;
+
+ switch (minor & 0xf) {
+ case SPARCAUDIO_AUDIOCTL_MINOR:
+ file->f_op = &sparcaudioctl_fops;
+ break;
+ case SPARCAUDIO_DSP16_MINOR:
+ case SPARCAUDIO_DSP_MINOR:
+ case SPARCAUDIO_AUDIO_MINOR:
+ /* If the driver is busy, then wait to get through. */
+ retry_open:
+ if (file->f_mode & FMODE_READ && drv->flags & SDF_OPEN_READ) {
+ if (file->f_flags & O_NONBLOCK)
+ return -EBUSY;
+
+ /* If something is now waiting, signal control device */
+ kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
- /* A low-level audio driver must exist. */
- if (!driver)
- return -ENODEV;
-
- switch (minor) {
- case SPARCAUDIO_AUDIOCTL_MINOR:
- file->f_op = &sparcaudioctl_fops;
- break;
-
- case SPARCAUDIO_DSP16_MINOR:
- case SPARCAUDIO_DSP_MINOR:
- case SPARCAUDIO_AUDIO_MINOR:
- /* If the driver is busy, then wait to get through. */
- retry_open:
- if (file->f_mode & FMODE_READ && driver->flags & SDF_OPEN_READ) {
- if (file->f_flags & O_NONBLOCK)
- return -EBUSY;
-
- interruptible_sleep_on(&driver->open_wait);
+ interruptible_sleep_on(&drv->open_wait);
if (signal_pending(current))
- return -EINTR;
- goto retry_open;
- }
- if (file->f_mode & FMODE_WRITE && driver->flags & SDF_OPEN_WRITE) {
- if (file->f_flags & O_NONBLOCK)
- return -EBUSY;
-
- interruptible_sleep_on(&driver->open_wait);
+ return -EINTR;
+ goto retry_open;
+ }
+ if (file->f_mode & FMODE_WRITE && drv->flags & SDF_OPEN_WRITE) {
+ if (file->f_flags & O_NONBLOCK)
+ return -EBUSY;
+
+ /* If something is now waiting, signal control device */
+ kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
+
+ interruptible_sleep_on(&drv->open_wait);
if (signal_pending(current))
- return -EINTR;
- goto retry_open;
- }
+ return -EINTR;
+ goto retry_open;
+ }
- /* Allow the low-level driver to initialize itself. */
- if (driver->ops->open) {
- err = driver->ops->open(inode,file,driver);
- if (err < 0)
- return err;
- }
-
- /* Mark the driver as locked for read and/or write. */
- if (file->f_mode & FMODE_READ) {
- driver->input_offset = 0;
- driver->input_front = 0;
- driver->input_rear = 0;
- driver->input_count = 0;
- driver->recording_count = 0;
- driver->ops->start_input(driver, driver->input_buffers[driver->input_front],
- 4096);
- driver->input_active = 1;
- driver->flags |= SDF_OPEN_READ;
+ /* Allow the low-level driver to initialize itself. */
+ if (drv->ops->open) {
+ err = drv->ops->open(inode,file,drv);
+ if (err < 0)
+ return err;
+ }
+
+ /* Mark the driver as locked for read and/or write. */
+ if (file->f_mode & FMODE_READ) {
+ drv->input_offset = 0;
+ drv->input_front = 0;
+ drv->input_rear = 0;
+ drv->input_count = 0;
+ drv->input_size = 0;
+ drv->recording_count = 0;
+ /* Clear pause */
+ if (drv->ops->set_input_pause)
+ drv->ops->set_input_pause(drv, 0);
+ drv->ops->start_input(drv, drv->input_buffers[drv->input_front],
+ drv->input_buffer_size);
+ drv->input_active = 1;
+ drv->flags |= SDF_OPEN_READ;
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ drv->output_offset = 0;
+ drv->output_eof = 0;
+ drv->playing_count = 0;
+ drv->output_size = 0;
+ drv->output_front = 0;
+ drv->output_rear = 0;
+ drv->output_count = 0;
+ drv->output_active = 0;
+ /* Clear pause */
+ if (drv->ops->set_output_pause)
+ drv->ops->set_output_pause(drv, 0);
+ drv->flags |= SDF_OPEN_WRITE;
+ }
+
+ break;
+ case SPARCAUDIO_MIXER_MINOR:
+ file->f_op = &sparcaudioctl_fops;
+ break;
+
+ default:
+ return -ENXIO;
}
- if (file->f_mode & FMODE_WRITE) {
- driver->playing_count = 0;
- driver->output_size = 0;
- driver->output_front = 0;
- driver->output_rear = 0;
- driver->output_count = 0;
- driver->output_active = 0;
- driver->flags |= SDF_OPEN_WRITE;
- }
- break;
- case SPARCAUDIO_MIXER_MINOR:
- file->f_op = &sparcaudioctl_fops;
- break;
- default:
- return -ENXIO;
- }
+ MOD_INC_USE_COUNT;
- MOD_INC_USE_COUNT;
-
- /* Success! */
- return 0;
+ /* Success! */
+ return 0;
}
-static int sparcaudio_release(struct inode * inode, struct file * file)
+static int sparcaudio_release_ret(struct inode * inode, struct file * file)
{
- /* Anything in the queue? */
- sparcaudio_sync_output(driver);
+ struct sparcaudio_driver *drv = drivers[(MINOR(inode->i_rdev) >>
+ SPARCAUDIO_DEVICE_SHIFT)];
- /* Stop input */
- driver->ops->stop_input(driver);
- driver->input_active = 0;
+ if (file->f_mode & FMODE_READ) {
+ /* Stop input */
+ drv->ops->stop_input(drv);
+ drv->input_active = 0;
+ }
+
+ if (file->f_mode & FMODE_WRITE) {
+ /* Anything in the queue? */
+ if (drv->output_offset) {
+ drv->output_offset = 0;
+ drv->output_rear = (drv->output_rear + 1)
+ % drv->num_output_buffers;
+ drv->output_count++;
+ }
+ sparcaudio_sync_output(drv);
- /* Wait for any output still in the queue to be played. */
- if (driver->output_count > 0)
- interruptible_sleep_on(&driver->output_drain_wait);
+ /* Wait for any output still in the queue to be played. */
+ if ((drv->output_count > 0) || (drv->playing_count > 0))
+ interruptible_sleep_on(&drv->output_drain_wait);
- /* Force any output to be stopped. */
- driver->ops->stop_output(driver);
- driver->output_active = 0;
+ /* Force any output to be stopped. */
+ drv->ops->stop_output(drv);
+ drv->output_active = 0;
+ drv->playing_count = 0;
+ drv->output_eof = 0;
- /* Let the low-level driver do any release processing. */
- if (driver->ops->release)
- driver->ops->release(inode,file,driver);
+ }
- if (file->f_mode & FMODE_READ)
- driver->flags &= ~(SDF_OPEN_READ);
+ /* Let the low-level driver do any release processing. */
+ if (drv->ops->release)
+ drv->ops->release(inode,file,drv);
- if (file->f_mode & FMODE_WRITE)
- driver->flags &= ~(SDF_OPEN_WRITE);
+ if (file->f_mode & FMODE_READ)
+ drv->flags &= ~(SDF_OPEN_READ);
- MOD_DEC_USE_COUNT;
+ if (file->f_mode & FMODE_WRITE)
+ drv->flags &= ~(SDF_OPEN_WRITE);
- wake_up_interruptible(&driver->open_wait);
+ /* Status changed. Signal control device */
+ kill_procs(drv->sd_siglist,SIGPOLL,S_MSG);
- return 0;
+ MOD_DEC_USE_COUNT;
+
+ wake_up_interruptible(&drv->open_wait);
+
+ return 0;
+}
+
+/* For 2.0 kernels */
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x20100
+static void sparcaudio_release(struct inode * inode, struct file * file)
+{
+ sparcaudio_release_ret(inode, file);
}
+#endif
static struct file_operations sparcaudio_fops = {
- sparcaudio_llseek,
+ sparcaudio_lseek,
sparcaudio_read,
sparcaudio_write,
NULL, /* sparcaudio_readdir */
- NULL, /* sparcaudio_select */
+ sparcaudio_select,
sparcaudio_ioctl,
NULL, /* sparcaudio_mmap */
sparcaudio_open,
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x200ff
+ NULL, /* sparcaudio_flush */
+#endif
sparcaudio_release
};
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x20100
+static struct symbol_table sparcaudio_syms = {
+#include <linux/symtab_begin.h>
+ X(register_sparcaudio_driver),
+ X(unregister_sparcaudio_driver),
+ X(sparcaudio_output_done),
+ X(sparcaudio_input_done),
+#include <linux/symtab_end.h>
+};
+#else
EXPORT_SYMBOL(register_sparcaudio_driver);
EXPORT_SYMBOL(unregister_sparcaudio_driver);
EXPORT_SYMBOL(sparcaudio_output_done);
EXPORT_SYMBOL(sparcaudio_input_done);
+#endif
#ifdef MODULE
int init_module(void)
@@ -1023,20 +2058,27 @@
__initfunc(int sparcaudio_init(void))
#endif
{
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x20100
+ /* Export symbols for use by the low-level drivers. */
+ register_symtab(&sparcaudio_syms);
+#endif
+
/* Register our character device driver with the VFS. */
if (register_chrdev(SOUND_MAJOR, "sparcaudio", &sparcaudio_fops))
return -EIO;
+
#ifdef CONFIG_SPARCAUDIO_AMD7930
amd7930_init();
#endif
-
+#ifdef CONFIG_SPARCAUDIO_DBRI
+ dbri_init();
+#endif
#ifdef CONFIG_SPARCAUDIO_CS4231
cs4231_init();
#endif
-
-#ifdef CONFIG_SPARCAUDIO_DBRI
- dbri_init();
+#ifdef CONFIG_SPARCAUDIO_DUMMY
+ dummy_init();
#endif
return 0;
@@ -1048,6 +2090,147 @@
unregister_chrdev(SOUND_MAJOR, "sparcaudio");
}
#endif
+
+/*
+ * Code from Linux Streams, Copyright 1995 by
+ * Graham Wheeler, Francisco J. Ballesteros, Denis Froschauer
+ * and available under GPL
+ */
+
+static int
+lis_add_to_elist( strevent_t **list, pid_t pid, short events )
+{
+ strevent_t *ev = NULL;
+
+ if (*list != NULL)
+ {
+ for (ev=(*list)->se_next;
+ ev != *list && ev->se_pid < pid;
+ ev=ev->se_next
+ );
+ }
+
+ if (ev == NULL || ev == *list) /* no slot for pid in list */
+ {
+ if ((ev = (strevent_t*)kmalloc(sizeof(strevent_t),GFP_KERNEL))==NULL)
+ return(-ENOMEM);
+
+ if (!*list) /* create dummy head node */
+ {
+ strevent_t *hd;
+ if ((hd = (strevent_t*)kmalloc(sizeof(strevent_t),GFP_KERNEL)
+ )==NULL)
+ {
+ kfree(ev);
+ return(-ENOMEM);
+ }
+ (*list=hd)->se_pid=0;
+ hd->se_next=hd->se_prev=hd; /* empty list */
+ }
+
+ /* link node last in the list */
+ ev->se_prev=(*list)->se_prev;
+ (*list)->se_prev->se_next=ev;
+ ((*list)->se_prev=ev)->se_next=*list;
+
+ ev->se_pid=pid;
+ ev->se_evs=0;
+ }
+ else if (ev->se_pid!=pid){ /* link node in the middle of the list */
+ strevent_t *new;
+ if ((new = (strevent_t*)kmalloc(sizeof(strevent_t),GFP_KERNEL))==NULL){
+ return(-ENOMEM);
+ }
+ new->se_prev=ev->se_prev;
+ new->se_next=ev;
+ ev->se_prev->se_next=new;
+ ev->se_prev=new;
+ ev = new ; /* use new element */
+ ev->se_pid=pid;
+ ev->se_evs=0;
+ }
+ ev->se_evs|=events;
+ return(0);
+}
+
+static int
+lis_del_from_elist( strevent_t **list, pid_t pid, short events )
+{
+ strevent_t *ev = NULL;
+
+ if (*list != NULL)
+ {
+ for (ev=(*list)->se_next;
+ ev != *list && ev->se_pid < pid;
+ ev=ev->se_next
+ );
+ }
+
+ if (ev == NULL || ev == *list || ev->se_pid != pid )
+ return(1);
+
+ if ( (ev->se_evs &= ~events) == 0 ){ /* unlink */
+ if (ev->se_next) /* should always be true */
+ ev->se_next->se_prev=ev->se_prev;
+ if (ev->se_prev) /* should always be true */
+ ev->se_prev->se_next=ev->se_next;
+ kfree(ev);
+ }
+ return(0);
+}
+
+static void
+lis_free_elist( strevent_t **list )
+{
+ strevent_t *ev;
+ strevent_t *nxt ;
+
+ for (ev = *list; ev != NULL; )
+ {
+ nxt = ev->se_next ;
+ kfree(ev) ;
+ ev = nxt ;
+ if (ev == *list) break ; /* all done */
+ }
+
+ *list = NULL ;
+}
+
+static short
+lis_get_elist_ent( strevent_t *list, pid_t pid )
+{
+ strevent_t *ev = NULL;
+
+ if (list == NULL) return(0) ;
+
+ for(ev = list->se_next ; ev != list && ev->se_pid < pid; ev=ev->se_next )
+ ;
+ if (ev != list && ev->se_pid == pid)
+ return(ev->se_evs);
+ else
+ return(0);
+}
+
+static void
+kill_procs( struct strevent *elist, int sig, short e)
+{
+ strevent_t *ev;
+ int res;
+
+ (void) sig ;
+ if (elist) {
+ for(ev = elist->se_next ; ev != elist; ev=ev->se_next )
+ if ((ev->se_evs & e) != 0){
+ if ((res=kill_proc(ev->se_pid,SIGPOLL,1))<0) {
+ if (res == -3) {
+ lis_del_from_elist(&elist, ev->se_pid, S_ALL);
+ continue;
+ }
+ dprintk(("kill_proc: errno %d\n",res));
+ }
+ }
+ }
+}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov