* NO WARRANTY
*
* For a list of known bugs (errata) and documentation,
- * see via-audio.pdf in linux/Documentation/DocBook.
+ * see via-audio.pdf in Documentation/DocBook.
* If this documentation does not exist, run "make pdfdocs".
*/
#include <linux/smp_lock.h>
#include <linux/ioport.h>
#include <linux/delay.h>
+#include <linux/dma-mapping.h>
#include <asm/io.h>
#include <asm/uaccess.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
+
#include "sound_config.h"
#include "dev_table.h"
#include "mpu401.h"
}
#endif
-#if defined(CONFIG_PROC_FS) && \
- defined(CONFIG_SOUND_VIA82CXXX_PROCFS)
-#define VIA_PROC_FS 1
-#endif
-
#define VIA_SUPPORT_MMAP 1 /* buggy, for now... */
#define MAX_CARDS 1
int mixer_vol; /* 8233/35 volume - not yet implemented */
- struct semaphore syscall_sem;
- struct semaphore open_sem;
+ struct mutex syscall_mutex;
+ struct mutex open_mutex;
/* The 8233/8235 have 4 DX audio channels, two record and
one six channel out. We bind ch_in to DX 1, ch_out to multichannel
static int via_init_one (struct pci_dev *dev, const struct pci_device_id *id);
static void __devexit via_remove_one (struct pci_dev *pdev);
-static ssize_t via_dsp_read(struct file *file, char *buffer, size_t count, loff_t *ppos);
-static ssize_t via_dsp_write(struct file *file, const char *buffer, size_t count, loff_t *ppos);
+static ssize_t via_dsp_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos);
+static ssize_t via_dsp_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos);
static unsigned int via_dsp_poll(struct file *file, struct poll_table_struct *wait);
static int via_dsp_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg);
static int via_dsp_open (struct inode *inode, struct file *file);
static void via_chan_pcm_fmt (struct via_channel *chan, int reset);
static void via_chan_buffer_free (struct via_info *card, struct via_channel *chan);
-#ifdef VIA_PROC_FS
-static int via_init_proc (void);
-static void via_cleanup_proc (void);
-static int via_card_init_proc (struct via_info *card);
-static void via_card_cleanup_proc (struct via_info *card);
-#else
-static inline int via_init_proc (void) { return 0; }
-static inline void via_cleanup_proc (void) {}
-static inline int via_card_init_proc (struct via_info *card) { return 0; }
-static inline void via_card_cleanup_proc (struct via_info *card) {}
-#endif
-
/****************************************************************
*
nonblock = 0;
if (nonblock) {
- if (down_trylock (&card->syscall_sem))
+ if (!mutex_trylock(&card->syscall_mutex))
return -EAGAIN;
} else {
- if (down_interruptible (&card->syscall_sem))
+ if (mutex_lock_interruptible(&card->syscall_mutex))
return -ERESTARTSYS;
}
file->private_data = card->ac97;
DPRINTK ("EXIT, returning 0\n");
- return 0;
+ return nonseekable_open(inode, file);
}
static int via_mixer_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
#endif
rc = codec->mixer_ioctl(codec, cmd, arg);
- up (&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
out:
DPRINTK ("EXIT, returning %d\n", rc);
#endif /* VM_RESERVED */
-struct vm_operations_struct via_mm_ops = {
+static struct vm_operations_struct via_mm_ops = {
.nopage = via_mm_nopage,
#ifndef VM_RESERVED
if (wr)
card->ch_out.is_mapped = 1;
- up (&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
rc = 0;
out:
static ssize_t via_dsp_do_read (struct via_info *card,
- char *userbuf, size_t count,
+ char __user *userbuf, size_t count,
int nonblock)
{
DECLARE_WAITQUEUE(wait, current);
- const char *orig_userbuf = userbuf;
+ const char __user *orig_userbuf = userbuf;
struct via_channel *chan = &card->ch_in;
size_t size;
int n, tmp;
/* Thomas Sailer:
* But also to ourselves, release semaphore if we do so */
if (need_resched()) {
- up(&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
schedule ();
ret = via_syscall_down (card, nonblock);
if (ret)
break;
}
- up(&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
DPRINTK ("Sleeping on block %d\n", n);
schedule();
}
-static ssize_t via_dsp_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
+static ssize_t via_dsp_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
{
struct via_info *card;
int nonblock = (file->f_flags & O_NONBLOCK);
card = file->private_data;
assert (card != NULL);
- if (ppos != &file->f_pos) {
- DPRINTK ("EXIT, returning -ESPIPE\n");
- return -ESPIPE;
- }
-
rc = via_syscall_down (card, nonblock);
if (rc) goto out;
rc = via_dsp_do_read (card, buffer, count, nonblock);
out_up:
- up (&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
out:
DPRINTK ("EXIT, returning %ld\n",(long) rc);
return rc;
static ssize_t via_dsp_do_write (struct via_info *card,
- const char *userbuf, size_t count,
+ const char __user *userbuf, size_t count,
int nonblock)
{
DECLARE_WAITQUEUE(wait, current);
- const char *orig_userbuf = userbuf;
+ const char __user *orig_userbuf = userbuf;
struct via_channel *chan = &card->ch_out;
volatile struct via_sgd_table *sgtable = chan->sgtable;
size_t size;
/* Thomas Sailer:
* But also to ourselves, release semaphore if we do so */
if (need_resched()) {
- up(&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
schedule ();
ret = via_syscall_down (card, nonblock);
if (ret)
break;
}
- up(&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
DPRINTK ("Sleeping on page %d, tmp==%d, ir==%d\n", n, tmp, chan->is_record);
schedule();
}
-static ssize_t via_dsp_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
+static ssize_t via_dsp_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
struct via_info *card;
ssize_t rc;
card = file->private_data;
assert (card != NULL);
- if (ppos != &file->f_pos) {
- DPRINTK ("EXIT, returning -ESPIPE\n");
- return -ESPIPE;
- }
-
rc = via_syscall_down (card, nonblock);
if (rc) goto out;
rc = via_dsp_do_write (card, buffer, count, nonblock);
out_up:
- up (&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
out:
DPRINTK ("EXIT, returning %ld\n",(long) rc);
return rc;
* Sleeps until all playback has been flushed to the audio
* hardware.
*
- * Locking: inside card->syscall_sem
+ * Locking: inside card->syscall_mutex
*/
static int via_dsp_drain_playback (struct via_info *card,
printk (KERN_ERR "sleeping but not active\n");
#endif
- up(&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
DPRINTK ("sleeping, nbufs=%d\n", atomic_read (&chan->n_frags));
schedule();
*
* Handles SNDCTL_DSP_GETISPACE and SNDCTL_DSP_GETOSPACE.
*
- * Locking: inside card->syscall_sem
+ * Locking: inside card->syscall_mutex
*/
static int via_dsp_ioctl_space (struct via_info *card,
struct via_channel *chan,
- void *arg)
+ void __user *arg)
{
audio_buf_info info;
*
* Handles SNDCTL_DSP_GETIPTR and SNDCTL_DSP_GETOPTR.
*
- * Locking: inside card->syscall_sem
+ * Locking: inside card->syscall_mutex
*/
static int via_dsp_ioctl_ptr (struct via_info *card,
struct via_channel *chan,
- void *arg)
+ void __user *arg)
{
count_info info;
struct via_info *card;
struct via_channel *chan;
int nonblock = (file->f_flags & O_NONBLOCK);
+ int __user *ip = (int __user *)arg;
+ void __user *p = (void __user *)arg;
assert (file != NULL);
card = file->private_data;
/* OSS API version. XXX unverified */
case OSS_GETVERSION:
DPRINTK ("ioctl OSS_GETVERSION, EXIT, returning SOUND_VERSION\n");
- rc = put_user (SOUND_VERSION, (int *)arg);
+ rc = put_user (SOUND_VERSION, ip);
break;
/* list of supported PCM data formats */
case SNDCTL_DSP_GETFMTS:
DPRINTK ("DSP_GETFMTS, EXIT, returning AFMT U8|S16_LE\n");
- rc = put_user (AFMT_U8 | AFMT_S16_LE, (int *)arg);
+ rc = put_user (AFMT_U8 | AFMT_S16_LE, ip);
break;
/* query or set current channel's PCM data format */
case SNDCTL_DSP_SETFMT:
- if (get_user(val, (int *)arg)) {
+ if (get_user(val, ip)) {
rc = -EFAULT;
break;
}
val = AFMT_U8;
}
DPRINTK ("SETFMT EXIT, returning %d\n", val);
- rc = put_user (val, (int *)arg);
+ rc = put_user (val, ip);
break;
/* query or set number of channels (1=mono, 2=stereo, 4/6 for multichannel) */
case SNDCTL_DSP_CHANNELS:
- if (get_user(val, (int *)arg)) {
+ if (get_user(val, ip)) {
rc = -EFAULT;
break;
}
val = card->ch_out.channels;
}
DPRINTK ("CHANNELS EXIT, returning %d\n", val);
- rc = put_user (val, (int *)arg);
+ rc = put_user (val, ip);
break;
/* enable (val is not zero) or disable (val == 0) stereo */
case SNDCTL_DSP_STEREO:
- if (get_user(val, (int *)arg)) {
+ if (get_user(val, ip)) {
rc = -EFAULT;
break;
}
val = rc - 1;
DPRINTK ("STEREO EXIT, returning %d\n", val);
- rc = put_user(val, (int *) arg);
+ rc = put_user(val, ip);
break;
/* query or set sampling rate */
case SNDCTL_DSP_SPEED:
- if (get_user(val, (int *)arg)) {
+ if (get_user(val, ip)) {
rc = -EFAULT;
break;
}
val = 0;
}
DPRINTK ("SPEED EXIT, returning %d\n", val);
- rc = put_user (val, (int *)arg);
+ rc = put_user (val, ip);
break;
/* wait until all buffers have been played, and then stop device */
/* obtain bitmask of device capabilities, such as mmap, full duplex, etc. */
case SNDCTL_DSP_GETCAPS:
DPRINTK ("DSP_GETCAPS\n");
- rc = put_user(VIA_DSP_CAP, (int *)arg);
+ rc = put_user(VIA_DSP_CAP, ip);
break;
/* obtain buffer fragment size */
if (rd) {
via_chan_set_buffering(card, &card->ch_in, -1);
- rc = put_user(card->ch_in.frag_size, (int *)arg);
+ rc = put_user(card->ch_in.frag_size, ip);
} else if (wr) {
via_chan_set_buffering(card, &card->ch_out, -1);
- rc = put_user(card->ch_out.frag_size, (int *)arg);
+ rc = put_user(card->ch_out.frag_size, ip);
}
break;
case SNDCTL_DSP_GETISPACE:
DPRINTK ("DSP_GETISPACE\n");
if (rd)
- rc = via_dsp_ioctl_space (card, &card->ch_in, (void*) arg);
+ rc = via_dsp_ioctl_space (card, &card->ch_in, p);
break;
/* obtain information about output buffering */
case SNDCTL_DSP_GETOSPACE:
DPRINTK ("DSP_GETOSPACE\n");
if (wr)
- rc = via_dsp_ioctl_space (card, &card->ch_out, (void*) arg);
+ rc = via_dsp_ioctl_space (card, &card->ch_out, p);
break;
/* obtain information about input hardware pointer */
case SNDCTL_DSP_GETIPTR:
DPRINTK ("DSP_GETIPTR\n");
if (rd)
- rc = via_dsp_ioctl_ptr (card, &card->ch_in, (void*) arg);
+ rc = via_dsp_ioctl_ptr (card, &card->ch_in, p);
break;
/* obtain information about output hardware pointer */
case SNDCTL_DSP_GETOPTR:
DPRINTK ("DSP_GETOPTR\n");
if (wr)
- rc = via_dsp_ioctl_ptr (card, &card->ch_out, (void*) arg);
+ rc = via_dsp_ioctl_ptr (card, &card->ch_out, p);
break;
/* return number of bytes remaining to be played by DMA engine */
assert (val <= (chan->frag_size * chan->frag_number));
DPRINTK ("GETODELAY EXIT, val = %d bytes\n", val);
- rc = put_user (val, (int *)arg);
+ rc = put_user (val, ip);
break;
}
* occur in the future
*/
case SNDCTL_DSP_SETTRIGGER:
- if (get_user(val, (int *)arg)) {
+ if (get_user(val, ip)) {
rc = -EFAULT;
break;
}
val |= PCM_ENABLE_INPUT;
if ((file->f_mode & FMODE_WRITE) && card->ch_out.is_enabled)
val |= PCM_ENABLE_OUTPUT;
- rc = put_user(val, (int *)arg);
+ rc = put_user(val, ip);
break;
/* Enable full duplex. Since we do this as soon as we are opened
/* set fragment size. implemented as a successful no-op for now */
case SNDCTL_DSP_SETFRAGMENT:
- if (get_user(val, (int *)arg)) {
+ if (get_user(val, ip)) {
rc = -EFAULT;
break;
}
/* not implemented */
default:
DPRINTK ("unhandled ioctl, cmd==%u, arg==%p\n",
- cmd, (void*) arg);
+ cmd, p);
break;
}
- up (&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
DPRINTK ("EXIT, returning %d\n", rc);
return rc;
}
match:
if (nonblock) {
- if (down_trylock (&card->open_sem)) {
+ if (!mutex_trylock(&card->open_mutex)) {
DPRINTK ("EXIT, returning -EAGAIN\n");
return -EAGAIN;
}
} else {
- if (down_interruptible (&card->open_sem)) {
+ if (mutex_lock_interruptible(&card->open_mutex)) {
DPRINTK ("EXIT, returning -ERESTARTSYS\n");
return -ERESTARTSYS;
}
}
DPRINTK ("EXIT, returning 0\n");
- return 0;
+ return nonseekable_open(inode, file);
}
via_chan_buffer_free (card, &card->ch_in);
}
- up (&card->syscall_sem);
- up (&card->open_sem);
+ mutex_unlock(&card->syscall_mutex);
+ mutex_unlock(&card->open_mutex);
DPRINTK ("EXIT, returning 0\n");
return 0;
if (rc)
goto err_out_disable;
- rc = pci_set_dma_mask(pdev, 0xffffffffULL);
+ rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
if (rc)
goto err_out_res;
- rc = pci_set_consistent_dma_mask(pdev, 0xffffffffULL);
+ rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
if (rc)
goto err_out_res;
card->card_num = via_num_cards++;
spin_lock_init (&card->lock);
spin_lock_init (&card->ac97_lock);
- init_MUTEX (&card->syscall_sem);
- init_MUTEX (&card->open_sem);
+ mutex_init(&card->syscall_mutex);
+ mutex_init(&card->open_mutex);
/* we must init these now, in case the intr handler needs them */
via_chan_init_defaults (card, &card->ch_out);
goto err_out_have_mixer;
}
- /*
- * per-card /proc info
- */
- rc = via_card_init_proc (card);
- if (rc) {
- printk (KERN_ERR PFX "card-specific /proc init failed, aborting\n");
- goto err_out_have_dsp;
- }
-
/*
* init and turn on interrupts, as the last thing we do
*/
rc = via_interrupt_init (card);
if (rc) {
printk (KERN_ERR PFX "interrupt init failed, aborting\n");
- goto err_out_have_proc;
+ goto err_out_have_dsp;
}
printk (KERN_INFO PFX "board #%d at 0x%04lX, IRQ %d\n",
DPRINTK ("EXIT, returning 0\n");
return 0;
-err_out_have_proc:
- via_card_cleanup_proc (card);
-
err_out_have_dsp:
via_dsp_cleanup (card);
#endif
free_irq (card->pdev->irq, card);
- via_card_cleanup_proc (card);
via_dsp_cleanup (card);
via_ac97_cleanup (card);
DPRINTK ("ENTER\n");
- rc = via_init_proc ();
+ rc = pci_register_driver (&via_driver);
if (rc) {
DPRINTK ("EXIT, returning %d\n", rc);
return rc;
}
- rc = pci_register_driver (&via_driver);
- if (rc < 1) {
- if (rc == 0)
- pci_unregister_driver (&via_driver);
- via_cleanup_proc ();
- DPRINTK ("EXIT, returning -ENODEV\n");
- return -ENODEV;
- }
-
DPRINTK ("EXIT, returning 0\n");
return 0;
}
DPRINTK ("ENTER\n");
pci_unregister_driver (&via_driver);
- via_cleanup_proc ();
DPRINTK ("EXIT\n");
}
MODULE_DESCRIPTION("DSP audio and mixer driver for Via 82Cxxx audio devices");
MODULE_LICENSE("GPL");
-
-#ifdef VIA_PROC_FS
-
-/****************************************************************
- *
- * /proc/driver/via/info
- *
- *
- */
-
-static int via_info_read_proc (char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
-#define YN(val,bit) (((val) & (bit)) ? "yes" : "no")
-#define ED(val,bit) (((val) & (bit)) ? "enable" : "disable")
-
- int len = 0;
- u8 r40, r41, r42, r44;
- struct via_info *card = data;
-
- DPRINTK ("ENTER\n");
-
- assert (card != NULL);
-
- len += sprintf (page+len, VIA_CARD_NAME "\n\n");
-
- pci_read_config_byte (card->pdev, 0x40, &r40);
- pci_read_config_byte (card->pdev, 0x41, &r41);
- pci_read_config_byte (card->pdev, 0x42, &r42);
- pci_read_config_byte (card->pdev, 0x44, &r44);
-
- len += sprintf (page+len,
- "Via 82Cxxx PCI registers:\n"
- "\n"
- "40 Codec Ready: %s\n"
- " Codec Low-power: %s\n"
- " Secondary Codec Ready: %s\n"
- "\n"
- "41 Interface Enable: %s\n"
- " De-Assert Reset: %s\n"
- " Force SYNC high: %s\n"
- " Force SDO high: %s\n"
- " Variable Sample Rate On-Demand Mode: %s\n"
- " SGD Read Channel PCM Data Out: %s\n"
- " FM Channel PCM Data Out: %s\n"
- " SB PCM Data Out: %s\n"
- "\n"
- "42 Game port enabled: %s\n"
- " SoundBlaster enabled: %s\n"
- " FM enabled: %s\n"
- " MIDI enabled: %s\n"
- "\n"
- "44 AC-Link Interface Access: %s\n"
- " Secondary Codec Support: %s\n"
-
- "\n",
-
- YN (r40, VIA_CR40_AC97_READY),
- YN (r40, VIA_CR40_AC97_LOW_POWER),
- YN (r40, VIA_CR40_SECONDARY_READY),
-
- ED (r41, VIA_CR41_AC97_ENABLE),
- YN (r41, (1 << 6)),
- YN (r41, (1 << 5)),
- YN (r41, (1 << 4)),
- ED (r41, (1 << 3)),
- ED (r41, (1 << 2)),
- ED (r41, (1 << 1)),
- ED (r41, (1 << 0)),
-
- YN (r42, VIA_CR42_GAME_ENABLE),
- YN (r42, VIA_CR42_SB_ENABLE),
- YN (r42, VIA_CR42_FM_ENABLE),
- YN (r42, VIA_CR42_MIDI_ENABLE),
-
- YN (r44, VIA_CR44_AC_LINK_ACCESS),
- YN (r44, VIA_CR44_SECOND_CODEC_SUPPORT)
-
- );
-
- DPRINTK ("EXIT, returning %d\n", len);
- return len;
-
-#undef YN
-#undef ED
-}
-
-
-/****************************************************************
- *
- * /proc/driver/via/... setup and cleanup
- *
- *
- */
-
-static int __init via_init_proc (void)
-{
- DPRINTK ("ENTER\n");
-
- if (!proc_mkdir ("driver/via", 0))
- return -EIO;
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-}
-
-
-static void via_cleanup_proc (void)
-{
- DPRINTK ("ENTER\n");
-
- remove_proc_entry ("driver/via", NULL);
-
- DPRINTK ("EXIT\n");
-}
-
-
-static int __devinit via_card_init_proc (struct via_info *card)
-{
- char s[32];
- int rc;
-
- DPRINTK ("ENTER\n");
-
- sprintf (s, "driver/via/%d", card->card_num);
- if (!proc_mkdir (s, 0)) {
- rc = -EIO;
- goto err_out_none;
- }
-
- sprintf (s, "driver/via/%d/info", card->card_num);
- if (!create_proc_read_entry (s, 0, 0, via_info_read_proc, card)) {
- rc = -EIO;
- goto err_out_dir;
- }
-
- sprintf (s, "driver/via/%d/ac97", card->card_num);
- if (!create_proc_read_entry (s, 0, 0, ac97_read_proc, card->ac97)) {
- rc = -EIO;
- goto err_out_info;
- }
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-
-err_out_info:
- sprintf (s, "driver/via/%d/info", card->card_num);
- remove_proc_entry (s, NULL);
-
-err_out_dir:
- sprintf (s, "driver/via/%d", card->card_num);
- remove_proc_entry (s, NULL);
-
-err_out_none:
- DPRINTK ("EXIT, returning %d\n", rc);
- return rc;
-}
-
-
-static void via_card_cleanup_proc (struct via_info *card)
-{
- char s[32];
-
- DPRINTK ("ENTER\n");
-
- sprintf (s, "driver/via/%d/ac97", card->card_num);
- remove_proc_entry (s, NULL);
-
- sprintf (s, "driver/via/%d/info", card->card_num);
- remove_proc_entry (s, NULL);
-
- sprintf (s, "driver/via/%d", card->card_num);
- remove_proc_entry (s, NULL);
-
- DPRINTK ("EXIT\n");
-}
-
-#endif /* VIA_PROC_FS */
git://git.onelab.eu / linux-2.6.git / blobdiff