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/*
* Purpose: Operating system abstraction functions for Linux
*/
/*
*
* This file is part of Open Sound System.
*
* Copyright (C) 4Front Technologies 1996-2008.
*
* This this source file is released under GPL v2 license (no other versions).
* See the COPYING file included in the main directory of this source
* distribution for the license terms and conditions.
*
*/
#include <oss_config.h>
#include <midi_core.h>
/*
* OSS has traditionally used fixed character device number (14). However
* current OSS uses fully dynamic major number allocation. The legacy
* character device 14 is left for ALSA.
*/
static int osscore_major = 0;
static int oss_expired = 0;
/*
* Number of cards supported in the same system. This should be largish
* because unplugging/replugging USB cards in wrong way may create
* large number of card instances.
*/
#define MAX_CARDS 32
static oss_device_t *cards[MAX_CARDS];
int oss_num_cards = 0;
void
oss_pci_byteswap (oss_device_t * osdev, int mode)
{
// NOP
}
int
oss_pci_read_config_byte (oss_device_t * osdev, offset_t where,
unsigned char *val)
{
return osscore_pci_read_config_byte (osdev->dip, where, val);
}
int
oss_pci_read_config_irq (oss_device_t * osdev, offset_t where,
unsigned char *val)
{
return osscore_pci_read_config_irq (osdev->dip, where, val);
}
int
oss_pci_read_config_word (oss_device_t * osdev, offset_t where,
unsigned short *val)
{
if (osdev == NULL)
{
cmn_err (CE_CONT, "oss_pci_read_config_word: osdev==NULL\n");
return PCIBIOS_FAILED;
}
return osscore_pci_read_config_word (osdev->dip, where, val);
}
int
oss_pci_read_config_dword (oss_device_t * osdev, offset_t where,
unsigned int *val)
{
return osscore_pci_read_config_dword (osdev->dip, where, val);
}
int
oss_pci_write_config_byte (oss_device_t * osdev, offset_t where,
unsigned char val)
{
return osscore_pci_write_config_byte (osdev->dip, where, val);
}
int
oss_pci_write_config_word (oss_device_t * osdev, offset_t where,
unsigned short val)
{
return osscore_pci_write_config_word (osdev->dip, where, val);
}
int
oss_pci_write_config_dword (oss_device_t * osdev, offset_t where,
unsigned int val)
{
return osscore_pci_write_config_dword (osdev->dip, where, val);
}
int
oss_pci_enable_msi (oss_device_t * osdev)
{
return osscore_pci_enable_msi (osdev->dip);
}
int
oss_find_minor (int dev_class, int instance)
{
int i;
for (i = 0; i < oss_num_cdevs; i++)
{
if (oss_cdevs[i]->d != NULL && oss_cdevs[i]->dev_class == dev_class
&& oss_cdevs[i]->instance == instance)
return i;
}
return OSS_ENXIO;
}
oss_device_t *
osdev_create (dev_info_t * dip, int dev_type,
int instance, const char *nick, const char *handle)
{
oss_device_t *osdev;
osdev = PMALLOC (NULL, sizeof (*osdev));
if (osdev == NULL)
{
cmn_err (CE_WARN, "osdev_create: Out of memory\n");
return NULL;
}
memset (osdev, 0, sizeof (*osdev));
sprintf (osdev->nick, "%s%d", nick, instance);
osdev->instance = instance;
osdev->dip = dip;
osdev->available = 1;
osdev->first_mixer = -1;
strcpy (osdev->modname, nick);
if (handle == NULL)
handle = nick;
if (oss_num_cards >= MAX_CARDS)
cmn_err (CE_WARN, "Too many OSS devices. At most %d permitted.\n",
MAX_CARDS);
else
{
osdev->cardnum = oss_num_cards;
cards[oss_num_cards++] = osdev;
}
/*
* Create the device handle
*/
switch (dev_type)
{
case DRV_PCI:
{
unsigned int subvendor;
char *devpath;
devpath = oss_pci_read_devpath (osdev->dip);
oss_pci_read_config_dword (osdev, 0x2c, &subvendor);
sprintf (osdev->handle, "PCI%08x-%s", subvendor, devpath);
}
break;
case DRV_USB:
// TODO: Get the vendor information
sprintf (osdev->handle, "USB-%s%d", handle, instance);
break;
default:
sprintf (osdev->handle, "%s%d", handle, instance);
}
return osdev;
}
oss_device_t *
osdev_clone (oss_device_t * orig_osdev, int new_instance)
{
oss_device_t *osdev;
osdev = PMALLOC (NULL, sizeof (*osdev));
if (osdev == NULL)
{
cmn_err (CE_WARN, "osdev_create: Out of memory\n");
return NULL;
}
memcpy (osdev, orig_osdev, sizeof (*osdev));
osdev->dev_type = DRV_CLONE;
osdev->instance = new_instance;
sprintf (osdev->nick, "%s%d", orig_osdev->modname, new_instance);
sprintf (osdev->handle, "%s%d", orig_osdev->modname, new_instance);
return osdev;
}
void
osdev_delete (oss_device_t * osdev)
{
int i;
if (osdev == NULL)
return;
osdev->available = 0;
/*
* Mark all minor nodes for this module as invalid.
*/
for (i = 0; i < oss_num_cdevs; i++)
if (oss_cdevs[i]->osdev == osdev)
{
oss_cdevs[i]->d = NULL;
oss_cdevs[i]->osdev = NULL;
strcpy (oss_cdevs[i]->name, "Removed device");
}
}
void
osdev_set_owner (oss_device_t * osdev, struct module *owner)
{
osdev->owner = owner;
}
void
osdev_set_major (oss_device_t * osdev, int major)
{
osdev->major = major;
}
void
osdev_set_irqparms (oss_device_t * osdev, void *irqparms)
{
osdev->irqparms = irqparms;
}
void *
osdev_get_irqparms (oss_device_t * osdev)
{
return osdev->irqparms;
}
char *
osdev_get_nick (oss_device_t * osdev)
{
return osdev->nick;
}
int
osdev_get_instance (oss_device_t * osdev)
{
return osdev->instance;
}
void
oss_inc_intrcount (oss_device_t * osdev, int claimed)
{
osdev->intrcount++;
if (claimed)
osdev->ackcount++;
}
struct module *
osdev_get_owner (oss_device_t * osdev)
{
return osdev->owner;
}
void *
oss_get_osid (oss_device_t * osdev)
{
return NULL; // TODO
}
int
oss_get_procinfo(int what)
{
switch (what)
{
case OSS_GET_PROCINFO_UID:
return oss_get_uid();
break;
}
return OSS_EINVAL;
}
int
oss_disable_device (oss_device_t * osdev)
{
int i;
if (osdev->major > 0)
oss_unregister_chrdev (osdev->major, osdev->nick);
osdev->major = 0;
/*
* Now mark all devices unavailable (for the time being)
* TODO: Mobe this stuff to some common OSS module (also in Solaris)
*/
if (osdev->refcount > 0)
{
return OSS_EBUSY;
}
for (i = 0; i < num_mixers; i++)
if (mixer_devs[i]->osdev == osdev)
{
mixer_devs[i]->unloaded = 1;
}
for (i = 0; i < num_mididevs; i++)
{
if (midi_devs[i]->osdev == osdev)
{
midi_devs[i]->unloaded = 1;
}
}
for (i = 0; i < num_audio_engines; i++)
if (audio_engines[i]->osdev == osdev)
{
audio_uninit_device (i);
}
return 0;
}
void
oss_reserve_device (oss_device_t * osdev)
{
osdev->refcount++;
}
void
oss_unreserve_device (oss_device_t * osdev, int decrement)
{
osdev->refcount--;
if (osdev->refcount < 0)
osdev->refcount = 0;
}
int
oss_register_device (oss_device_t * osdev, const char *name)
{
if (name == NULL)
{
cmn_err (CE_WARN, "oss_register_device: name==NULL\n");
osdev->name = "Undefined name";
return 0;
}
if ((osdev->name = PMALLOC (NULL, strlen (name) + 1)) == NULL)
{
cmn_err (CE_WARN, "Cannot allocate memory for device name\n");
osdev->name = "Unknown device";
}
strcpy (osdev->name, name);
return 0;
}
void
oss_unregister_device (oss_device_t * osdev)
{
/*
* Notice! The driver calling this routine (the owner of the osdev parameter)
* has already uninitialized itself. Do not do any actions that may call this
* driver directly or indirectly.
*/
// TODO: Move this to some common OSS module (also under Solaris)
}
int
oss_get_cardinfo (int cardnum, oss_card_info * ci)
{
/*
* Print information about a 'card' in a format suitable for /dev/sndstat
*/
if (cardnum < 0 || cardnum >= oss_num_cards)
return OSS_ENXIO;
if (cards[cardnum]->name != NULL)
strncpy (ci->longname, cards[cardnum]->name, 128);
ci->longname[127] = 0;
if (cards[cardnum]->nick != NULL)
strncpy (ci->shortname, cards[cardnum]->nick, 16);
ci->shortname[15] = 0;
if (cards[cardnum]->hw_info != NULL)
strncpy (ci->hw_info, cards[cardnum]->hw_info, sizeof (ci->hw_info));
ci->hw_info[sizeof (ci->hw_info) - 1] = 0;
ci->intr_count = cards[cardnum]->intrcount;
ci->ack_count = cards[cardnum]->ackcount;
return 0;
}
int
__oss_alloc_dmabuf (int dev, dmap_p dmap, unsigned int alloc_flags,
oss_uint64_t maxaddr, int direction)
{
void *buf;
int err;
oss_native_word phaddr;
int size = 64 * 1024;
extern int dma_buffsize;
if (dma_buffsize > 16 && dma_buffsize <= 128)
size = dma_buffsize * 1024;
if (dmap->dmabuf != NULL)
return 0; /* Already done */
if (dmap == NULL)
{
cmn_err (CE_WARN, "oss_alloc_dmabuf: dmap==NULL\n");
return OSS_EIO;
}
/*
* Some applications and virtual drivers need shorter buffer.
*/
if (dmap->flags & DMAP_SMALLBUF)
{
size = SMALL_DMABUF_SIZE;
}
else if (dmap->flags & DMAP_MEDIUMBUF)
{
size = MEDIUM_DMABUF_SIZE;
}
if ((alloc_flags & DMABUF_SIZE_16BITS) && size > 32 * 1024)
size = 32 * 1024;
dmap->dmabuf = NULL;
dmap->buffsize = size;
err = -1;
while (err < 0 && dmap->dmabuf == NULL && dmap->buffsize >= 4 * 1024)
{
if ((buf =
oss_contig_malloc (dmap->osdev, dmap->buffsize, maxaddr,
&phaddr)) == NULL)
{
if ((dmap->buffsize = (dmap->buffsize / 2)) < 8 * 1024)
return OSS_ENOMEM;
cmn_err (CE_CONT, "Dropping DMA buffer size to %d bytes.\n",
dmap->buffsize);
continue;
}
dmap->dmabuf = buf;
dmap->dmabuf_phys = phaddr;
return 0;
}
return OSS_ENOMEM;
}
void
oss_free_dmabuf (int dev, dmap_p dmap)
{
void *buf = dmap->dmabuf;
if (dmap->dmabuf == NULL)
return;
dmap->dmabuf = NULL;
oss_contig_free (NULL, buf, dmap->buffsize);
dmap->dmabuf_phys = 0;
}
static inline int
cpy_file (oss_file_handle_t * f, struct fileinfo *fi)
{
// TODO: Handle acc_flags properly
fi->acc_flags = 0;
fi->mode = 0;
fi->acc_flags = oss_file_get_flags (f);
if ((fi->acc_flags & O_ACCMODE) == O_RDWR)
fi->mode = OPEN_READWRITE;
if ((fi->acc_flags & O_ACCMODE) == O_RDONLY)
fi->mode = OPEN_READ;
if ((fi->acc_flags & O_ACCMODE) == O_WRONLY)
fi->mode = OPEN_WRITE;
return fi->mode;
}
static int
oss_cdev_open (oss_inode_handle_t * inode, oss_file_handle_t * file)
{
int dev = oss_inode_get_minor (inode);
oss_native_word d;
int tmpdev, dev_class, retval;
struct fileinfo fi;
oss_cdev_t *cdev;
cpy_file (file, &fi);
if (dev > oss_num_cdevs)
return OSS_ENXIO;
if (oss_cdevs == NULL)
return OSS_ENXIO;
if ((cdev = oss_cdevs[dev]) == NULL || cdev->d == NULL)
return OSS_ENXIO;
DDB (cmn_err
(CE_CONT, "oss_cdev_open(%d): %s, class=%d, instance=%d\n", dev,
cdev->name, cdev->dev_class, cdev->instance));
if (cdev->d->open == NULL)
{
return OSS_ENODEV;
}
dev_class = cdev->dev_class;
tmpdev = -1;
oss_inc_refcounts ();
retval =
cdev->d->open (cdev->instance, cdev->dev_class, &fi, 0, 0, &tmpdev);
if (retval < 0)
{
oss_dec_refcounts ();
return retval;
}
if (tmpdev != -1)
dev = tmpdev;
//open_devices++;
//open_count[dev]++;
d = dev;
oss_file_set_private (file, (void *) d);
return 0;
}
static int
oss_cdev_release (oss_inode_handle_t * inode, oss_file_handle_t * file)
{
oss_native_word d = (oss_native_word) oss_file_get_private (file);
int dev = d;
struct fileinfo fi;
oss_cdev_t *cdev;
cpy_file (file, &fi);
if (dev > oss_num_cdevs)
return 0;
if ((cdev = oss_cdevs[dev]) == NULL || cdev->d->close == NULL)
{
return 0;
}
cdev->d->close (cdev->instance, &fi);
oss_dec_refcounts ();
return 0;
}
static ssize_t
oss_cdev_read (oss_file_handle_t * file, char *buf, size_t count,
loff_t * offs)
{
oss_native_word d = (oss_native_word) oss_file_get_private (file);
int dev = d;
oss_cdev_t *cdev;
int err;
uio_t uio;
struct fileinfo fi;
cpy_file (file, &fi);
if (dev > oss_num_cdevs)
return OSS_ENXIO;
if ((cdev = oss_cdevs[dev]) == NULL || cdev->d->read == NULL)
{
return OSS_ENXIO;
}
if ((err = oss_create_uio (&uio, buf, count, UIO_READ, 0)) < 0)
{
return err;
}
err = cdev->d->read (cdev->instance, &fi, &uio, count);
return err;
}
static ssize_t
oss_cdev_write (oss_file_handle_t * file, char *buf, size_t count,
loff_t * offs)
{
oss_native_word d = (oss_native_word) oss_file_get_private (file);
int dev = d;
oss_cdev_t *cdev;
int err;
uio_t uio;
struct fileinfo fi;
cpy_file (file, &fi);
if (dev > oss_num_cdevs)
return OSS_ENXIO;
if ((cdev = oss_cdevs[dev]) == NULL || cdev->d->write == NULL)
{
return OSS_ENXIO;
}
if ((err = oss_create_uio (&uio, buf, count, UIO_WRITE, 0)) < 0)
{
return err;
}
err = cdev->d->write (cdev->instance, &fi, &uio, count);
return err;
}
static int
oss_cdev_ioctl (oss_inode_handle_t * inode, oss_file_handle_t * file,
unsigned int cmd, unsigned long arg)
{
oss_native_word d = (oss_native_word) oss_file_get_private (file);
int dev = d;
oss_cdev_t *cdev;
int err;
/* Remove localbuf (workaround for CONFIG_HARDENED_USERCOPY from kernel 4.8) */
/* int localbuf[64]; */ /* 256 bytes is the largest frequently used ioctl size */
int len = 0;
int alloced = 0;
int *ptr = (int *) arg;
struct fileinfo fi;
cpy_file (file, &fi);
if (dev > oss_num_cdevs)
return OSS_ENXIO;
if ((cdev = oss_cdevs[dev]) == NULL || cdev->d->ioctl == NULL)
{
return OSS_ENXIO;
}
if (__SIOC_DIR (cmd) != __SIOC_NONE && __SIOC_DIR (cmd) != 0)
{
len = __SIOC_SIZE (cmd);
if (len < 1 || len > 65536 || arg == 0)
{
cmn_err (CE_WARN, "Bad ioctl command %x, %d, %x\n", cmd, len, arg);
return OSS_EFAULT;
}
/* Always use dynamic kernel memory allocation (instead of static localbuf)
(workaround for CONFIG_HARDENED_USERCOPY from kernel 4.8) */
ptr = KERNEL_MALLOC (len);
alloced = 1;
/* Use statically allocated buffer for short arguments */
/*if (len > sizeof (localbuf))
{
ptr = KERNEL_MALLOC (len);
alloced = 1;
}
else
ptr = localbuf;*/
if (ptr == NULL || arg == 0)
{
return OSS_EFAULT;
}
if (__SIOC_DIR (cmd) & __SIOC_WRITE)
{
if (oss_copy_from_user (ptr, (char *) arg, len))
{
if (alloced)
KERNEL_FREE (ptr);
return OSS_EFAULT;
}
}
}
if ((err = cdev->d->ioctl (cdev->instance, &fi, cmd, (ioctl_arg) ptr)) < 0)
{
if (alloced)
KERNEL_FREE (ptr);
return err;
}
if (__SIOC_DIR (cmd) & __SIOC_READ)
{
if (oss_copy_to_user ((char *) arg, ptr, len))
{
if (alloced)
KERNEL_FREE (ptr);
return OSS_EFAULT;
}
}
/* Free the local buffer unless it was statically allocated */
if (ptr != NULL && alloced)
// if (len > sizeof (localbuf))
KERNEL_FREE (ptr);
return ((err < 0) ? err : 0);
}
/* No BKL if this is used */
static long
oss_cdev_unlocked_ioctl (oss_file_handle_t * file, unsigned int cmd,
unsigned long arg)
{
return oss_cdev_ioctl (NULL, file, cmd, arg);
}
/* Used for 32 bit clients on a 64 bit kernel. No BKL here either */
static long
oss_cdev_compat_ioctl (oss_file_handle_t * file, unsigned int cmd,
unsigned long arg)
{
return oss_cdev_ioctl (NULL, file, cmd, arg);
}
static unsigned int
oss_cdev_poll (oss_file_handle_t * file, oss_poll_table_handle_t * wait)
{
oss_poll_event_t ev;
oss_native_word d = (oss_native_word) oss_file_get_private (file);
int dev = d;
oss_cdev_t *cdev;
int err;
struct fileinfo fi;
cpy_file (file, &fi);
if (dev > oss_num_cdevs)
return OSS_ENXIO;
if ((cdev = oss_cdevs[dev]) == NULL || cdev->d->chpoll == NULL)
{
return OSS_ENXIO;
}
ev.wait = wait;
ev.file = file;
ev.events = POLLOUT | POLLWRNORM | POLLIN | POLLRDNORM;
ev.revents = 0;
err = cdev->d->chpoll (cdev->instance, &fi, &ev);
if (err < 0)
{
return err;
}
return ev.revents;
}
static int
oss_cdev_mmap (oss_file_handle_t * file, oss_vm_area_handle_t * vma)
{
oss_native_word d = (oss_native_word) oss_file_get_private (file);
int dev = d;
oss_cdev_t *cdev;
dmap_p dmap = NULL;
int err;
if (dev > oss_num_cdevs)
return OSS_ENXIO;
if ((cdev = oss_cdevs[dev]) == NULL)
{
return OSS_ENXIO;
}
if (cdev->dev_class != OSS_DEV_DSP && cdev->dev_class != OSS_DEV_DSP_ENGINE) /* Only mmap audio devices */
{
return OSS_ENXIO;
}
dev = cdev->instance;
if (dev < 0 || dev >= num_audio_engines)
return OSS_ENXIO;
if (audio_engines[dev]->flags & ADEV_NOMMAP)
return OSS_EIO;
if (oss_vma_get_flags (vma) & VM_WRITE) /* Map write and read/write to the output buf */
{
dmap = audio_engines[dev]->dmap_out;
}
else if (oss_vma_get_flags (vma) & VM_READ)
{
dmap = audio_engines[dev]->dmap_in;
}
else
{
cmn_err (CE_WARN, "Undefined mmap() access\n");
return OSS_EINVAL;
}
if (dmap == NULL)
{
cmn_err (CE_WARN, "mmap() error. dmap == NULL\n");
return OSS_EIO;
}
if (dmap->dmabuf == NULL)
{
cmn_err (CE_WARN, "mmap() called when raw_buf == NULL\n");
return OSS_EIO;
}
if (dmap->dmabuf_phys == 0)
{
cmn_err (CE_WARN, "mmap() not supported by device /dev/dsp%d.\n", dev);
return OSS_EIO;
}
if (dmap->mapping_flags)
{
cmn_err (CE_WARN, "mmap() called twice for the same DMA buffer\n");
return OSS_EIO;
}
if (dmap->flags & DMAP_COOKED)
{
cmn_err (CE_WARN,
"mmap() not possible with currently selected sample format.\n");
return OSS_EIO;
}
if ((err = oss_do_mmap (vma, dmap->dmabuf_phys, dmap->bytes_in_use)) < 0)
return err;
dmap->mapping_flags |= DMA_MAP_MAPPED;
memset (dmap->dmabuf, dmap->neutral_byte, dmap->bytes_in_use);
return 0;
}
oss_file_operation_handle_t oss_fops = {
oss_cdev_read,
oss_cdev_write,
NULL, /* oss_readdir */
oss_cdev_poll,
oss_cdev_ioctl,
oss_cdev_mmap,
oss_cdev_open,
oss_cdev_release,
oss_cdev_compat_ioctl,
oss_cdev_unlocked_ioctl
};
static int
hookup_cdevsw (oss_device_t * osdev)
{
return oss_register_chrdev (osdev, osscore_major, "osscore", &oss_fops);
}
int
oss_request_major (oss_device_t * osdev, int major, char *module)
{
int err;
err = oss_register_chrdev (osdev, major, module, &oss_fops);
return err;
}
static int
grow_array(oss_device_t *osdev, oss_cdev_t ***arr, int *size, int increment)
{
oss_cdev_t **old=*arr, **new = *arr;
int old_size = *size;
int new_size = *size;
new_size += increment;
if ((new=PMALLOC(osdev, new_size * sizeof (oss_cdev_t *)))==NULL)
return 0;
memset(new, 0, new_size * sizeof(oss_cdev_t *));
if (old != NULL)
memcpy(new, old, old_size * sizeof(oss_cdev_t *));
*size = new_size;
*arr = new;
if (old != NULL)
PMFREE(osdev, old);
return 1;
}
void
oss_install_chrdev (oss_device_t * osdev, char *name, int dev_class,
int instance, oss_cdev_drv_t * drv, int flags)
{
/*
* oss_install_chrdev creates a character device (minor). However if
* name==NULL the device will not be exported (made visible to userland
* clients).
*/
int num;
oss_cdev_t *cdev = NULL;
if (osdev->major == 0)
{
cmn_err (CE_WARN, "Module %s major=0\n", osdev->nick);
return;
}
if (osdev->major < 0)
{
cmn_err (CE_WARN, "Failed to allocate major device for %s\n",
osdev->nick);
}
if (dev_class != OSS_DEV_STATUS)
if (oss_expired && instance > 0)
return;
/*
* Find if this dev_class&instance already exists (after previous module
* detach).
*/
for (num = 0; num < oss_num_cdevs; num++)
if (oss_cdevs[num]->d == NULL) /* Unloaded driver */
if (oss_cdevs[num]->dev_class == dev_class
&& oss_cdevs[num]->instance == instance)
{
cdev = oss_cdevs[num];
break;
}
if (cdev == NULL)
{
if (oss_num_cdevs >= OSS_MAX_CDEVS)
{
if (!grow_array(osdev, &oss_cdevs, &oss_max_cdevs, 100))
{
cmn_err (CE_WARN, "Out of minor numbers.\n");
return;
}
}
if ((cdev = PMALLOC (NULL, sizeof (*cdev))) == NULL)
{
cmn_err (CE_WARN, "Cannot allocate character device desc.\n");
return;
}
num = oss_num_cdevs++;
}
memset (cdev, 0, sizeof (*cdev));
cdev->dev_class = dev_class;
cdev->instance = instance;
cdev->d = drv;
cdev->osdev = osdev;
if (name != NULL)
strncpy (cdev->name, name, sizeof (cdev->name));
else
strcpy (cdev->name, "NONE");
cdev->name[sizeof (cdev->name) - 1] = 0;
oss_cdevs[num] = cdev;
/*
* Export the device only if name != NULL
*/
if (name != NULL)
{
strcpy (cdev->name, name);
oss_register_minor (osdev->major, num, name);
}
}
int
oss_init_osscore (oss_device_t * osdev)
{
#ifdef LICENSED_VERSION
if (!oss_license_handle_time (oss_get_time ()))
{
cmn_err (CE_WARN, "This version of Open Sound System has expired\n");
cmn_err (CE_CONT,
"Please download the latest version from www.opensound.com\n");
oss_expired = 1;
}
#endif
if ((osscore_major = hookup_cdevsw (osdev)) < 0)
{
cmn_err (CE_WARN, "Failed to allocate character major number %d\n",
osscore_major);
return OSS_EBUSY;
}
osdev->major = osscore_major;
oss_register_device (osdev, "OSS core services");
oss_common_init (osdev);
return 0;
}
void
oss_uninit_osscore (oss_device_t * osdev)
{
oss_unload_drivers ();
// free_all_irqs (); /* If something was left allocated by accident */
oss_unregister_chrdev (osscore_major, "osscore");
}
/*
* oss_pmalloc() is only used by usb_wraper.inc.
*/
void *
oss_pmalloc (size_t sz)
{
return oss_memblk_malloc(&oss_global_memblk, sz);
}
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