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Commit 83bad1d7 authored by Adrian Bunk's avatar Adrian Bunk Committed by Linus Torvalds
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scheduled OSS driver removal 

This patch contains the scheduled removal of OSS drivers whose config
options have been removed in 2.6.23.
Signed-off-by: default avatarAdrian Bunk <bunk@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b4cf9c34
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Showing with 4 additions and 9697 deletions
Documentation/feature-removal-schedule.txt
View file @ 83bad1d7
......@@ -208,13 +208,6 @@ Who: Randy Dunlap <randy.dunlap@oracle.com>
---------------------------
What: drivers depending on OSS_OBSOLETE
When: options in 2.6.23, code in 2.6.25
Why: obsolete OSS drivers
Who: Adrian Bunk <bunk@stusta.de>
---------------------------
What: libata spindown skipping and warning
When: Dec 2008
Why: Some halt(8) implementations synchronize caches for and spin
......
arch/ppc/platforms/prep_setup.c
View file @ 83bad1d7
......@@ -91,20 +91,11 @@ extern void prep_tiger1_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi
#define cached_21 (((char *)(ppc_cached_irq_mask))[3])
#define cached_A1 (((char *)(ppc_cached_irq_mask))[2])
#ifdef CONFIG_SOUND_CS4232
long ppc_cs4232_dma, ppc_cs4232_dma2;
#endif
extern PTE *Hash, *Hash_end;
extern unsigned long Hash_size, Hash_mask;
extern int probingmem;
extern unsigned long loops_per_jiffy;
#ifdef CONFIG_SOUND_CS4232
EXPORT_SYMBOL(ppc_cs4232_dma);
EXPORT_SYMBOL(ppc_cs4232_dma2);
#endif
/* useful ISA ports */
#define PREP_SYSCTL 0x81c
/* present in the IBM reference design; possibly identical in Mot boxes: */
......@@ -569,74 +560,6 @@ prep_show_percpuinfo(struct seq_file *m, int i)
return 0;
}
#ifdef CONFIG_SOUND_CS4232
static long __init masktoint(unsigned int i)
{
int t = -1;
while (i >> ++t)
;
return (t-1);
}
/*
* ppc_cs4232_dma and ppc_cs4232_dma2 are used in include/asm/dma.h
* to distinguish sound dma-channels from others. This is because
* blocksize on 16 bit dma-channels 5,6,7 is 128k, but
* the cs4232.c uses 64k like on 8 bit dma-channels 0,1,2,3
*/
static void __init prep_init_sound(void)
{
PPC_DEVICE *audiodevice = NULL;
/*
* Get the needed resource information from residual data.
*
*/
if (have_residual_data)
audiodevice = residual_find_device(~0, NULL,
MultimediaController, AudioController, -1, 0);
if (audiodevice != NULL) {
PnP_TAG_PACKET *pkt;
pkt = PnP_find_packet((unsigned char *)&res->DevicePnPHeap[audiodevice->AllocatedOffset],
S5_Packet, 0);
if (pkt != NULL)
ppc_cs4232_dma = masktoint(pkt->S5_Pack.DMAMask);
pkt = PnP_find_packet((unsigned char*)&res->DevicePnPHeap[audiodevice->AllocatedOffset],
S5_Packet, 1);
if (pkt != NULL)
ppc_cs4232_dma2 = masktoint(pkt->S5_Pack.DMAMask);
}
/*
* These are the PReP specs' defaults for the cs4231. We use these
* as fallback incase we don't have residual data.
* At least the IBM Thinkpad 850 with IDE DMA Channels at 6 and 7
* will use the other values.
*/
if (audiodevice == NULL) {
switch (_prep_type) {
case _PREP_IBM:
ppc_cs4232_dma = 1;
ppc_cs4232_dma2 = -1;
break;
default:
ppc_cs4232_dma = 6;
ppc_cs4232_dma2 = 7;
}
}
/*
* Find a way to push this information to the cs4232 driver
* Give it out with printk, when not in cmd_line?
* Append it to cmd_line and boot_command_line?
* Format is cs4232=io,irq,dma,dma2
*/
}
#endif /* CONFIG_SOUND_CS4232 */
/*
* Fill out screen_info according to the residual data. This allows us to use
* at least vesafb.
......@@ -898,10 +821,6 @@ prep_setup_arch(void)
}
}
#ifdef CONFIG_SOUND_CS4232
prep_init_sound();
#endif /* CONFIG_SOUND_CS4232 */
prep_init_vesa();
switch (_prep_type) {
......
drivers/media/video/Makefile
View file @ 83bad1d7
......@@ -22,7 +22,6 @@ obj-$(CONFIG_VIDEO_IR_I2C) += ir-kbd-i2c.o
obj-$(CONFIG_VIDEO_TVAUDIO) += tvaudio.o
obj-$(CONFIG_VIDEO_TDA7432) += tda7432.o
obj-$(CONFIG_VIDEO_TDA9875) += tda9875.o
obj-$(CONFIG_SOUND_TVMIXER) += tvmixer.o
obj-$(CONFIG_VIDEO_SAA6588) += saa6588.o
obj-$(CONFIG_VIDEO_SAA5246A) += saa5246a.o
......
drivers/media/video/tvmixer.c deleted 100644 → 0
View file @ b4cf9c34
/*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/videodev.h>
#include <linux/init.h>
#include <linux/kdev_t.h>
#include <linux/sound.h>
#include <linux/soundcard.h>
#include <asm/semaphore.h>
#include <asm/uaccess.h>
#define DEV_MAX 4
static int devnr = -1;
module_param(devnr, int, 0644);
MODULE_AUTHOR("Gerd Knorr");
MODULE_LICENSE("GPL");
/* ----------------------------------------------------------------------- */
struct TVMIXER {
struct i2c_client *dev;
int minor;
int count;
};
static struct TVMIXER devices[DEV_MAX];
static int tvmixer_adapters(struct i2c_adapter *adap);
static int tvmixer_clients(struct i2c_client *client);
/* ----------------------------------------------------------------------- */
static int mix_to_v4l(int i)
{
int r;
r = ((i & 0xff) * 65536 + 50) / 100;
if (r > 65535) r = 65535;
if (r < 0) r = 0;
return r;
}
static int v4l_to_mix(int i)
{
int r;
r = (i * 100 + 32768) / 65536;
if (r > 100) r = 100;
if (r < 0) r = 0;
return r | (r << 8);
}
static int v4l_to_mix2(int l, int r)
{
r = (r * 100 + 32768) / 65536;
if (r > 100) r = 100;
if (r < 0) r = 0;
l = (l * 100 + 32768) / 65536;
if (l > 100) l = 100;
if (l < 0) l = 0;
return (r << 8) | l;
}
static int tvmixer_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
struct video_audio va;
int left,right,ret,val = 0;
struct TVMIXER *mix = file->private_data;
struct i2c_client *client = mix->dev;
void __user *argp = (void __user *)arg;
int __user *p = argp;
if (NULL == client)
return -ENODEV;
if (cmd == SOUND_MIXER_INFO) {
mixer_info info;
strlcpy(info.id, "tv card", sizeof(info.id));
strlcpy(info.name, client->name, sizeof(info.name));
info.modify_counter = 42 /* FIXME */;
if (copy_to_user(argp, &info, sizeof(info)))
return -EFAULT;
return 0;
}
if (cmd == SOUND_OLD_MIXER_INFO) {
_old_mixer_info info;
strlcpy(info.id, "tv card", sizeof(info.id));
strlcpy(info.name, client->name, sizeof(info.name));
if (copy_to_user(argp, &info, sizeof(info)))
return -EFAULT;
return 0;
}
if (cmd == OSS_GETVERSION)
return put_user(SOUND_VERSION, p);
if (_SIOC_DIR(cmd) & _SIOC_WRITE)
if (get_user(val, p))
return -EFAULT;
/* read state */
memset(&va,0,sizeof(va));
client->driver->command(client,VIDIOCGAUDIO,&va);
switch (cmd) {
case MIXER_READ(SOUND_MIXER_RECMASK):
case MIXER_READ(SOUND_MIXER_CAPS):
case MIXER_READ(SOUND_MIXER_RECSRC):
case MIXER_WRITE(SOUND_MIXER_RECSRC):
ret = 0;
break;
case MIXER_READ(SOUND_MIXER_STEREODEVS):
ret = SOUND_MASK_VOLUME;
break;
case MIXER_READ(SOUND_MIXER_DEVMASK):
ret = SOUND_MASK_VOLUME;
if (va.flags & VIDEO_AUDIO_BASS)
ret |= SOUND_MASK_BASS;
if (va.flags & VIDEO_AUDIO_TREBLE)
ret |= SOUND_MASK_TREBLE;
break;
case MIXER_WRITE(SOUND_MIXER_VOLUME):
left = mix_to_v4l(val);
right = mix_to_v4l(val >> 8);
va.volume = max(left,right);
va.balance = (32768*min(left,right)) / (va.volume ? va.volume : 1);
va.balance = (left<right) ? (65535-va.balance) : va.balance;
if (va.volume)
va.flags &= ~VIDEO_AUDIO_MUTE;
client->driver->command(client,VIDIOCSAUDIO,&va);
client->driver->command(client,VIDIOCGAUDIO,&va);
/* fall throuth */
case MIXER_READ(SOUND_MIXER_VOLUME):
left = (min(65536 - va.balance,32768) *
va.volume) / 32768;
right = (min(va.balance,(u16)32768) *
va.volume) / 32768;
ret = v4l_to_mix2(left,right);
break;
case MIXER_WRITE(SOUND_MIXER_BASS):
va.bass = mix_to_v4l(val);
client->driver->command(client,VIDIOCSAUDIO,&va);
client->driver->command(client,VIDIOCGAUDIO,&va);
/* fall throuth */
case MIXER_READ(SOUND_MIXER_BASS):
ret = v4l_to_mix(va.bass);
break;
case MIXER_WRITE(SOUND_MIXER_TREBLE):
va.treble = mix_to_v4l(val);
client->driver->command(client,VIDIOCSAUDIO,&va);
client->driver->command(client,VIDIOCGAUDIO,&va);
/* fall throuth */
case MIXER_READ(SOUND_MIXER_TREBLE):
ret = v4l_to_mix(va.treble);
break;
default:
return -EINVAL;
}
if (put_user(ret, p))
return -EFAULT;
return 0;
}
static int tvmixer_open(struct inode *inode, struct file *file)
{
int i, minor = iminor(inode);
struct TVMIXER *mix = NULL;
struct i2c_client *client = NULL;
for (i = 0; i < DEV_MAX; i++) {
if (devices[i].minor == minor) {
mix = devices+i;
client = mix->dev;
break;
}
}
if (NULL == client)
return -ENODEV;
/* lock bttv in memory while the mixer is in use */
file->private_data = mix;
if (client->adapter->owner)
try_module_get(client->adapter->owner);
return 0;
}
static int tvmixer_release(struct inode *inode, struct file *file)
{
struct TVMIXER *mix = file->private_data;
struct i2c_client *client;
client = mix->dev;
if (NULL == client) {
return -ENODEV;
}
module_put(client->adapter->owner);
return 0;
}
static struct i2c_driver driver = {
.driver = {
.name = "tvmixer",
},
.id = I2C_DRIVERID_TVMIXER,
.detach_adapter = tvmixer_adapters,
.attach_adapter = tvmixer_adapters,
.detach_client = tvmixer_clients,
};
static const struct file_operations tvmixer_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.ioctl = tvmixer_ioctl,
.open = tvmixer_open,
.release = tvmixer_release,
};
/* ----------------------------------------------------------------------- */
static int tvmixer_adapters(struct i2c_adapter *adap)
{
struct i2c_client *client;
list_for_each_entry(client, &adap->clients, list)
tvmixer_clients(client);
return 0;
}
static int tvmixer_clients(struct i2c_client *client)
{
struct video_audio va;
int i,minor;
if (!(client->adapter->class & I2C_CLASS_TV_ANALOG))
return -1;
/* unregister ?? */
for (i = 0; i < DEV_MAX; i++) {
if (devices[i].dev == client) {
/* unregister */
unregister_sound_mixer(devices[i].minor);
devices[i].dev = NULL;
devices[i].minor = -1;
printk("tvmixer: %s unregistered (#1)\n",
client->name);
return 0;
}
}
/* look for a free slot */
for (i = 0; i < DEV_MAX; i++)
if (NULL == devices[i].dev)
break;
if (i == DEV_MAX) {
printk(KERN_WARNING "tvmixer: DEV_MAX too small\n");
return -1;
}
/* audio chip with mixer ??? */
if (NULL == client->driver->command)
return -1;
memset(&va,0,sizeof(va));
if (0 != client->driver->command(client,VIDIOCGAUDIO,&va))
return -1;
if (0 == (va.flags & VIDEO_AUDIO_VOLUME))
return -1;
/* everything is fine, register */
if ((minor = register_sound_mixer(&tvmixer_fops,devnr)) < 0) {
printk(KERN_ERR "tvmixer: cannot allocate mixer device\n");
return -1;
}
devices[i].minor = minor;
devices[i].count = 0;
devices[i].dev = client;
printk("tvmixer: %s (%s) registered with minor %d\n",
client->name,client->adapter->name,minor);
return 0;
}
/* ----------------------------------------------------------------------- */
static int __init tvmixer_init_module(void)
{
int i;
for (i = 0; i < DEV_MAX; i++)
devices[i].minor = -1;
return i2c_add_driver(&driver);
}
static void __exit tvmixer_cleanup_module(void)
{
int i;
i2c_del_driver(&driver);
for (i = 0; i < DEV_MAX; i++) {
if (devices[i].minor != -1) {
unregister_sound_mixer(devices[i].minor);
printk("tvmixer: %s unregistered (#2)\n",
devices[i].dev->name);
}
}
}
module_init(tvmixer_init_module);
module_exit(tvmixer_cleanup_module);
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* ---------------------------------------------------------------------------
* Local variables:
* c-basic-offset: 8
* End:
*/
include/asm-powerpc/dma.h
View file @ 83bad1d7
......@@ -93,16 +93,6 @@
*
*/
/* see prep_setup_arch() for detailed informations */
#if defined(CONFIG_SOUND_CS4232) && defined(CONFIG_PPC_PREP)
extern long ppc_cs4232_dma, ppc_cs4232_dma2;
#define SND_DMA1 ppc_cs4232_dma
#define SND_DMA2 ppc_cs4232_dma2
#else
#define SND_DMA1 -1
#define SND_DMA2 -1
#endif
/* 8237 DMA controllers */
#define IO_DMA1_BASE 0x00 /* 8 bit slave DMA, channels 0..3 */
#define IO_DMA2_BASE 0xC0 /* 16 bit master DMA, ch 4(=slave input)..7 */
......@@ -269,23 +259,14 @@ static __inline__ void set_dma_page(unsigned int dmanr, int pagenr)
dma_outb(pagenr >> 8, DMA_HI_PAGE_3);
break;
case 5:
if (SND_DMA1 == 5 || SND_DMA2 == 5)
dma_outb(pagenr, DMA_LO_PAGE_5);
else
dma_outb(pagenr & 0xfe, DMA_LO_PAGE_5);
dma_outb(pagenr >> 8, DMA_HI_PAGE_5);
break;
case 6:
if (SND_DMA1 == 6 || SND_DMA2 == 6)
dma_outb(pagenr, DMA_LO_PAGE_6);
else
dma_outb(pagenr & 0xfe, DMA_LO_PAGE_6);
dma_outb(pagenr >> 8, DMA_HI_PAGE_6);
break;
case 7:
if (SND_DMA1 == 7 || SND_DMA2 == 7)
dma_outb(pagenr, DMA_LO_PAGE_7);
else
dma_outb(pagenr & 0xfe, DMA_LO_PAGE_7);
dma_outb(pagenr >> 8, DMA_HI_PAGE_7);
break;
......@@ -302,12 +283,6 @@ static __inline__ void set_dma_addr(unsigned int dmanr, unsigned int phys)
((dmanr & 3) << 1) + IO_DMA1_BASE);
dma_outb((phys >> 8) & 0xff,
((dmanr & 3) << 1) + IO_DMA1_BASE);
} else if (dmanr == SND_DMA1 || dmanr == SND_DMA2) {
dma_outb(phys & 0xff,
((dmanr & 3) << 2) + IO_DMA2_BASE);
dma_outb((phys >> 8) & 0xff,
((dmanr & 3) << 2) + IO_DMA2_BASE);
dma_outb((dmanr & 3), DMA2_EXT_REG);
} else {
dma_outb((phys >> 1) & 0xff,
((dmanr & 3) << 2) + IO_DMA2_BASE);
......@@ -334,11 +309,6 @@ static __inline__ void set_dma_count(unsigned int dmanr, unsigned int count)
((dmanr & 3) << 1) + 1 + IO_DMA1_BASE);
dma_outb((count >> 8) & 0xff,
((dmanr & 3) << 1) + 1 + IO_DMA1_BASE);
} else if (dmanr == SND_DMA1 || dmanr == SND_DMA2) {
dma_outb(count & 0xff,
((dmanr & 3) << 2) + 2 + IO_DMA2_BASE);
dma_outb((count >> 8) & 0xff,
((dmanr & 3) << 2) + 2 + IO_DMA2_BASE);
} else {
dma_outb((count >> 1) & 0xff,
((dmanr & 3) << 2) + 2 + IO_DMA2_BASE);
......@@ -368,8 +338,7 @@ static __inline__ int get_dma_residue(unsigned int dmanr)
count = 1 + dma_inb(io_port);
count += dma_inb(io_port) << 8;
return (dmanr <= 3 || dmanr == SND_DMA1 || dmanr == SND_DMA2)
? count : (count << 1);
return (dmanr <= 3) ? count : (count << 1);
}
/* These are in kernel/dma.c: */
......
include/linux/ac97_codec.h
View file @ 83bad1d7
......@@ -326,11 +326,7 @@ struct ac97_ops
#define AC97_DEFAULT_POWER_OFF 4 /* Needs warm reset to power up */
};
extern int ac97_read_proc (char *page_out, char **start, off_t off,
int count, int *eof, void *data);
extern int ac97_probe_codec(struct ac97_codec *);
extern unsigned int ac97_set_adc_rate(struct ac97_codec *codec, unsigned int rate);
extern unsigned int ac97_set_dac_rate(struct ac97_codec *codec, unsigned int rate);
extern struct ac97_codec *ac97_alloc_codec(void);
extern void ac97_release_codec(struct ac97_codec *codec);
......@@ -363,7 +359,4 @@ struct ac97_quirk {
int type; /* quirk type above */
};
struct pci_dev;
extern int ac97_tune_hardware(struct pci_dev *pdev, struct ac97_quirk *quirk, int override);
#endif /* _AC97_CODEC_H_ */
sound/oss/Makefile
View file @ 83bad1d7
......@@ -6,7 +6,6 @@
# Each configuration option enables a list of files.
obj-$(CONFIG_SOUND_OSS) += sound.o
obj-$(CONFIG_SOUND_CS4232) += cs4232.o ad1848.o
# Please leave it as is, cause the link order is significant !
......@@ -16,7 +15,6 @@ obj-$(CONFIG_SOUND_AEDSP16) += aedsp16.o
obj-$(CONFIG_SOUND_PSS) += pss.o ad1848.o mpu401.o
obj-$(CONFIG_SOUND_TRIX) += trix.o ad1848.o sb_lib.o uart401.o
obj-$(CONFIG_SOUND_SSCAPE) += sscape.o ad1848.o mpu401.o
obj-$(CONFIG_SOUND_CS4232) += cs4232.o uart401.o
obj-$(CONFIG_SOUND_MSS) += ad1848.o
obj-$(CONFIG_SOUND_PAS) += pas2.o sb.o sb_lib.o uart401.o
obj-$(CONFIG_SOUND_SB) += sb.o sb_lib.o uart401.o
......@@ -27,19 +25,12 @@ obj-$(CONFIG_SOUND_YM3812) += opl3.o
obj-$(CONFIG_SOUND_VMIDI) += v_midi.o
obj-$(CONFIG_SOUND_VIDC) += vidc_mod.o
obj-$(CONFIG_SOUND_WAVEARTIST) += waveartist.o
obj-$(CONFIG_SOUND_VIA82CXXX) += via82cxxx_audio.o ac97_codec.o
ifeq ($(CONFIG_MIDI_VIA82CXXX),y)
obj-$(CONFIG_SOUND_VIA82CXXX) += sound.o uart401.o
endif
obj-$(CONFIG_SOUND_MSNDCLAS) += msnd.o msnd_classic.o
obj-$(CONFIG_SOUND_MSNDPIN) += msnd.o msnd_pinnacle.o
obj-$(CONFIG_SOUND_VWSND) += vwsnd.o
obj-$(CONFIG_SOUND_ICH) += i810_audio.o ac97_codec.o
obj-$(CONFIG_SOUND_AU1550_AC97) += au1550_ac97.o ac97_codec.o
obj-$(CONFIG_SOUND_TRIDENT) += trident.o ac97_codec.o
obj-$(CONFIG_SOUND_BCM_CS4297A) += swarm_cs4297a.o
obj-$(CONFIG_SOUND_BT878) += btaudio.o
obj-$(CONFIG_SOUND_WM97XX) += ac97_plugin_wm97xx.o
......
sound/oss/ac97_codec.c
View file @ 83bad1d7
......@@ -189,42 +189,6 @@ static const struct {
{0x57454301, "Winbond 83971D", &null_ops},
};
static const char *ac97_stereo_enhancements[] =
{
/* 0 */ "No 3D Stereo Enhancement",
/* 1 */ "Analog Devices Phat Stereo",
/* 2 */ "Creative Stereo Enhancement",
/* 3 */ "National Semi 3D Stereo Enhancement",
/* 4 */ "YAMAHA Ymersion",
/* 5 */ "BBE 3D Stereo Enhancement",
/* 6 */ "Crystal Semi 3D Stereo Enhancement",
/* 7 */ "Qsound QXpander",
/* 8 */ "Spatializer 3D Stereo Enhancement",
/* 9 */ "SRS 3D Stereo Enhancement",
/* 10 */ "Platform Tech 3D Stereo Enhancement",
/* 11 */ "AKM 3D Audio",
/* 12 */ "Aureal Stereo Enhancement",
/* 13 */ "Aztech 3D Enhancement",
/* 14 */ "Binaura 3D Audio Enhancement",
/* 15 */ "ESS Technology Stereo Enhancement",
/* 16 */ "Harman International VMAx",
/* 17 */ "Nvidea 3D Stereo Enhancement",
/* 18 */ "Philips Incredible Sound",
/* 19 */ "Texas Instruments 3D Stereo Enhancement",
/* 20 */ "VLSI Technology 3D Stereo Enhancement",
/* 21 */ "TriTech 3D Stereo Enhancement",
/* 22 */ "Realtek 3D Stereo Enhancement",
/* 23 */ "Samsung 3D Stereo Enhancement",
/* 24 */ "Wolfson Microelectronics 3D Enhancement",
/* 25 */ "Delta Integration 3D Enhancement",
/* 26 */ "SigmaTel 3D Enhancement",
/* 27 */ "Winbond 3D Stereo Enhancement",
/* 28 */ "Rockwell 3D Stereo Enhancement",
/* 29 */ "Reserved 29",
/* 30 */ "Reserved 30",
/* 31 */ "Reserved 31"
};
/* this table has default mixer values for all OSS mixers. */
static struct mixer_defaults {
int mixer;
......@@ -614,83 +578,6 @@ static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned
return -EINVAL;
}
/* entry point for /proc/driver/controller_vendor/ac97/%d */
int ac97_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
int len = 0, cap, extid, val, id1, id2;
struct ac97_codec *codec;
int is_ac97_20 = 0;
if ((codec = data) == NULL)
return -ENODEV;
id1 = codec->codec_read(codec, AC97_VENDOR_ID1);
id2 = codec->codec_read(codec, AC97_VENDOR_ID2);
len += sprintf (page+len, "Vendor name : %s\n", codec->name);
len += sprintf (page+len, "Vendor id : %04X %04X\n", id1, id2);
extid = codec->codec_read(codec, AC97_EXTENDED_ID);
extid &= ~((1<<2)|(1<<4)|(1<<5)|(1<<10)|(1<<11)|(1<<12)|(1<<13));
len += sprintf (page+len, "AC97 Version : %s\n",
extid ? "2.0 or later" : "1.0");
if (extid) is_ac97_20 = 1;
cap = codec->codec_read(codec, AC97_RESET);
len += sprintf (page+len, "Capabilities :%s%s%s%s%s%s\n",
cap & 0x0001 ? " -dedicated MIC PCM IN channel-" : "",
cap & 0x0002 ? " -reserved1-" : "",
cap & 0x0004 ? " -bass & treble-" : "",
cap & 0x0008 ? " -simulated stereo-" : "",
cap & 0x0010 ? " -headphone out-" : "",
cap & 0x0020 ? " -loudness-" : "");
val = cap & 0x00c0;
len += sprintf (page+len, "DAC resolutions :%s%s%s\n",
" -16-bit-",
val & 0x0040 ? " -18-bit-" : "",
val & 0x0080 ? " -20-bit-" : "");
val = cap & 0x0300;
len += sprintf (page+len, "ADC resolutions :%s%s%s\n",
" -16-bit-",
val & 0x0100 ? " -18-bit-" : "",
val & 0x0200 ? " -20-bit-" : "");
len += sprintf (page+len, "3D enhancement : %s\n",
ac97_stereo_enhancements[(cap >> 10) & 0x1f]);
val = codec->codec_read(codec, AC97_GENERAL_PURPOSE);
len += sprintf (page+len, "POP path : %s 3D\n"
"Sim. stereo : %s\n"
"3D enhancement : %s\n"
"Loudness : %s\n"
"Mono output : %s\n"
"MIC select : %s\n"
"ADC/DAC loopback : %s\n",
val & 0x8000 ? "post" : "pre",
val & 0x4000 ? "on" : "off",
val & 0x2000 ? "on" : "off",
val & 0x1000 ? "on" : "off",
val & 0x0200 ? "MIC" : "MIX",
val & 0x0100 ? "MIC2" : "MIC1",
val & 0x0080 ? "on" : "off");
extid = codec->codec_read(codec, AC97_EXTENDED_ID);
cap = extid;
len += sprintf (page+len, "Ext Capabilities :%s%s%s%s%s%s%s\n",
cap & 0x0001 ? " -var rate PCM audio-" : "",
cap & 0x0002 ? " -2x PCM audio out-" : "",
cap & 0x0008 ? " -var rate MIC in-" : "",
cap & 0x0040 ? " -PCM center DAC-" : "",
cap & 0x0080 ? " -PCM surround DAC-" : "",
cap & 0x0100 ? " -PCM LFE DAC-" : "",
cap & 0x0200 ? " -slot/DAC mappings-" : "");
if (is_ac97_20) {
len += sprintf (page+len, "Front DAC rate : %d\n",
codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE));
}
return len;
}
/**
* codec_id - Turn id1/id2 into a PnP string
* @id1: Vendor ID1
......@@ -1313,176 +1200,5 @@ static int pt101_init(struct ac97_codec * codec)
#endif
EXPORT_SYMBOL(ac97_read_proc);
EXPORT_SYMBOL(ac97_probe_codec);
/*
* AC97 library support routines
*/
/**
* ac97_set_dac_rate - set codec rate adaption
* @codec: ac97 code
* @rate: rate in hertz
*
* Set the DAC rate. Assumes the codec supports VRA. The caller is
* expected to have checked this little detail.
*/
unsigned int ac97_set_dac_rate(struct ac97_codec *codec, unsigned int rate)
{
unsigned int new_rate = rate;
u32 dacp;
u32 mast_vol, phone_vol, mono_vol, pcm_vol;
u32 mute_vol = 0x8000; /* The mute volume? */
if(rate != codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE))
{
/* Mute several registers */
mast_vol = codec->codec_read(codec, AC97_MASTER_VOL_STEREO);
mono_vol = codec->codec_read(codec, AC97_MASTER_VOL_MONO);
phone_vol = codec->codec_read(codec, AC97_HEADPHONE_VOL);
pcm_vol = codec->codec_read(codec, AC97_PCMOUT_VOL);
codec->codec_write(codec, AC97_MASTER_VOL_STEREO, mute_vol);
codec->codec_write(codec, AC97_MASTER_VOL_MONO, mute_vol);
codec->codec_write(codec, AC97_HEADPHONE_VOL, mute_vol);
codec->codec_write(codec, AC97_PCMOUT_VOL, mute_vol);
/* Power down the DAC */
dacp=codec->codec_read(codec, AC97_POWER_CONTROL);
codec->codec_write(codec, AC97_POWER_CONTROL, dacp|0x0200);
/* Load the rate and read the effective rate */
codec->codec_write(codec, AC97_PCM_FRONT_DAC_RATE, rate);
new_rate=codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE);
/* Power it back up */
codec->codec_write(codec, AC97_POWER_CONTROL, dacp);
/* Restore volumes */
codec->codec_write(codec, AC97_MASTER_VOL_STEREO, mast_vol);
codec->codec_write(codec, AC97_MASTER_VOL_MONO, mono_vol);
codec->codec_write(codec, AC97_HEADPHONE_VOL, phone_vol);
codec->codec_write(codec, AC97_PCMOUT_VOL, pcm_vol);
}
return new_rate;
}
EXPORT_SYMBOL(ac97_set_dac_rate);
/**
* ac97_set_adc_rate - set codec rate adaption
* @codec: ac97 code
* @rate: rate in hertz
*
* Set the ADC rate. Assumes the codec supports VRA. The caller is
* expected to have checked this little detail.
*/
unsigned int ac97_set_adc_rate(struct ac97_codec *codec, unsigned int rate)
{
unsigned int new_rate = rate;
u32 dacp;
if(rate != codec->codec_read(codec, AC97_PCM_LR_ADC_RATE))
{
/* Power down the ADC */
dacp=codec->codec_read(codec, AC97_POWER_CONTROL);
codec->codec_write(codec, AC97_POWER_CONTROL, dacp|0x0100);
/* Load the rate and read the effective rate */
codec->codec_write(codec, AC97_PCM_LR_ADC_RATE, rate);
new_rate=codec->codec_read(codec, AC97_PCM_LR_ADC_RATE);
/* Power it back up */
codec->codec_write(codec, AC97_POWER_CONTROL, dacp);
}
return new_rate;
}
EXPORT_SYMBOL(ac97_set_adc_rate);
static int swap_headphone(int remove_master)
{
struct list_head *l;
struct ac97_codec *c;
if (remove_master) {
mutex_lock(&codec_mutex);
list_for_each(l, &codecs)
{
c = list_entry(l, struct ac97_codec, list);
if (supported_mixer(c, SOUND_MIXER_PHONEOUT))
c->supported_mixers &= ~SOUND_MASK_PHONEOUT;
}
mutex_unlock(&codec_mutex);
} else
ac97_hw[SOUND_MIXER_PHONEOUT].offset = AC97_MASTER_VOL_STEREO;
/* Scale values already match */
ac97_hw[SOUND_MIXER_VOLUME].offset = AC97_MASTER_VOL_MONO;
return 0;
}
static int apply_quirk(int quirk)
{
switch (quirk) {
case AC97_TUNE_NONE:
return 0;
case AC97_TUNE_HP_ONLY:
return swap_headphone(1);
case AC97_TUNE_SWAP_HP:
return swap_headphone(0);
case AC97_TUNE_SWAP_SURROUND:
return -ENOSYS; /* not yet implemented */
case AC97_TUNE_AD_SHARING:
return -ENOSYS; /* not yet implemented */
case AC97_TUNE_ALC_JACK:
return -ENOSYS; /* not yet implemented */
}
return -EINVAL;
}
/**
* ac97_tune_hardware - tune up the hardware
* @pdev: pci_dev pointer
* @quirk: quirk list
* @override: explicit quirk value (overrides if not AC97_TUNE_DEFAULT)
*
* Do some workaround for each pci device, such as renaming of the
* headphone (true line-out) control as "Master".
* The quirk-list must be terminated with a zero-filled entry.
*
* Returns zero if successful, or a negative error code on failure.
*/
int ac97_tune_hardware(struct pci_dev *pdev, struct ac97_quirk *quirk, int override)
{
int result;
if (!quirk)
return -EINVAL;
if (override != AC97_TUNE_DEFAULT) {
result = apply_quirk(override);
if (result < 0)
printk(KERN_ERR "applying quirk type %d failed (%d)\n", override, result);
return result;
}
for (; quirk->vendor; quirk++) {
if (quirk->vendor != pdev->subsystem_vendor)
continue;
if ((! quirk->mask && quirk->device == pdev->subsystem_device) ||
quirk->device == (quirk->mask & pdev->subsystem_device)) {
#ifdef DEBUG
printk("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, pdev->subsystem_device);
#endif
result = apply_quirk(quirk->type);
if (result < 0)
printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result);
return result;
}
}
return 0;
}
EXPORT_SYMBOL_GPL(ac97_tune_hardware);
MODULE_LICENSE("GPL");
sound/oss/btaudio.c deleted 100644 → 0
View file @ b4cf9c34
/*
btaudio - bt878 audio dma driver for linux 2.4.x
(c) 2000-2002 Gerd Knorr <kraxel@bytesex.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/pci.h>
#include <linux/sched.h>
#include <linux/signal.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/poll.h>
#include <linux/sound.h>
#include <linux/soundcard.h>
#include <linux/slab.h>
#include <linux/kdev_t.h>
#include <linux/mutex.h>
#include <asm/uaccess.h>
#include <asm/io.h>
/* mmio access */
#define btwrite(dat,adr) writel((dat), (bta->mmio+(adr)))
#define btread(adr) readl(bta->mmio+(adr))
#define btand(dat,adr) btwrite((dat) & btread(adr), adr)
#define btor(dat,adr) btwrite((dat) | btread(adr), adr)
#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
/* registers (shifted because bta->mmio is long) */
#define REG_INT_STAT (0x100 >> 2)
#define REG_INT_MASK (0x104 >> 2)
#define REG_GPIO_DMA_CTL (0x10c >> 2)
#define REG_PACKET_LEN (0x110 >> 2)
#define REG_RISC_STRT_ADD (0x114 >> 2)
#define REG_RISC_COUNT (0x120 >> 2)
/* IRQ bits - REG_INT_(STAT|MASK) */
#define IRQ_SCERR (1 << 19)
#define IRQ_OCERR (1 << 18)
#define IRQ_PABORT (1 << 17)
#define IRQ_RIPERR (1 << 16)
#define IRQ_PPERR (1 << 15)
#define IRQ_FDSR (1 << 14)
#define IRQ_FTRGT (1 << 13)
#define IRQ_FBUS (1 << 12)
#define IRQ_RISCI (1 << 11)
#define IRQ_OFLOW (1 << 3)
#define IRQ_BTAUDIO (IRQ_SCERR | IRQ_OCERR | IRQ_PABORT | IRQ_RIPERR |\
IRQ_PPERR | IRQ_FDSR | IRQ_FTRGT | IRQ_FBUS |\
IRQ_RISCI)
/* REG_GPIO_DMA_CTL bits */
#define DMA_CTL_A_PWRDN (1 << 26)
#define DMA_CTL_DA_SBR (1 << 14)
#define DMA_CTL_DA_ES2 (1 << 13)
#define DMA_CTL_ACAP_EN (1 << 4)
#define DMA_CTL_RISC_EN (1 << 1)
#define DMA_CTL_FIFO_EN (1 << 0)
/* RISC instructions */
#define RISC_WRITE (0x01 << 28)
#define RISC_JUMP (0x07 << 28)
#define RISC_SYNC (0x08 << 28)
/* RISC bits */
#define RISC_WR_SOL (1 << 27)
#define RISC_WR_EOL (1 << 26)
#define RISC_IRQ (1 << 24)
#define RISC_SYNC_RESYNC (1 << 15)
#define RISC_SYNC_FM1 0x06
#define RISC_SYNC_VRO 0x0c
#define HWBASE_AD (448000)
/* -------------------------------------------------------------- */
struct btaudio {
/* linked list */
struct btaudio *next;
/* device info */
int dsp_digital;
int dsp_analog;
int mixer_dev;
struct pci_dev *pci;
unsigned int irq;
unsigned long mem;
unsigned long __iomem *mmio;
/* locking */
int users;
struct mutex lock;
/* risc instructions */
unsigned int risc_size;
unsigned long *risc_cpu;
dma_addr_t risc_dma;
/* audio data */
unsigned int buf_size;
unsigned char *buf_cpu;
dma_addr_t buf_dma;
/* buffer setup */
int line_bytes;
int line_count;
int block_bytes;
int block_count;
/* read fifo management */
int recording;
int dma_block;
int read_offset;
int read_count;
wait_queue_head_t readq;
/* settings */
int gain[3];
int source;
int bits;
int decimation;
int mixcount;
int sampleshift;
int channels;
int analog;
int rate;
};
struct cardinfo {
char *name;
int rate;
};
static struct btaudio *btaudios;
static unsigned int debug;
static unsigned int irq_debug;
/* -------------------------------------------------------------- */
#define BUF_DEFAULT 128*1024
#define BUF_MIN 8192
static int alloc_buffer(struct btaudio *bta)
{
if (NULL == bta->buf_cpu) {
for (bta->buf_size = BUF_DEFAULT; bta->buf_size >= BUF_MIN;
bta->buf_size = bta->buf_size >> 1) {
bta->buf_cpu = pci_alloc_consistent
(bta->pci, bta->buf_size, &bta->buf_dma);
if (NULL != bta->buf_cpu)
break;
}
if (NULL == bta->buf_cpu)
return -ENOMEM;
memset(bta->buf_cpu,0,bta->buf_size);
}
if (NULL == bta->risc_cpu) {
bta->risc_size = PAGE_SIZE;
bta->risc_cpu = pci_alloc_consistent
(bta->pci, bta->risc_size, &bta->risc_dma);
if (NULL == bta->risc_cpu) {
pci_free_consistent(bta->pci, bta->buf_size, bta->buf_cpu, bta->buf_dma);
bta->buf_cpu = NULL;
return -ENOMEM;
}
}
return 0;
}
static void free_buffer(struct btaudio *bta)
{
if (NULL != bta->buf_cpu) {
pci_free_consistent(bta->pci, bta->buf_size,
bta->buf_cpu, bta->buf_dma);
bta->buf_cpu = NULL;
}
if (NULL != bta->risc_cpu) {
pci_free_consistent(bta->pci, bta->risc_size,
bta->risc_cpu, bta->risc_dma);
bta->risc_cpu = NULL;
}
}
static int make_risc(struct btaudio *bta)
{
int rp, bp, line, block;
unsigned long risc;
bta->block_bytes = bta->buf_size >> 4;
bta->block_count = 1 << 4;
bta->line_bytes = bta->block_bytes;
bta->line_count = bta->block_count;
while (bta->line_bytes > 4095) {
bta->line_bytes >>= 1;
bta->line_count <<= 1;
}
if (bta->line_count > 255)
return -EINVAL;
if (debug)
printk(KERN_DEBUG
"btaudio: bufsize=%d - bs=%d bc=%d - ls=%d, lc=%d\n",
bta->buf_size,bta->block_bytes,bta->block_count,
bta->line_bytes,bta->line_count);
rp = 0; bp = 0;
block = 0;
bta->risc_cpu[rp++] = cpu_to_le32(RISC_SYNC|RISC_SYNC_FM1);
bta->risc_cpu[rp++] = cpu_to_le32(0);
for (line = 0; line < bta->line_count; line++) {
risc = RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL;
risc |= bta->line_bytes;
if (0 == (bp & (bta->block_bytes-1))) {
risc |= RISC_IRQ;
risc |= (block & 0x0f) << 16;
risc |= (~block & 0x0f) << 20;
block++;
}
bta->risc_cpu[rp++] = cpu_to_le32(risc);
bta->risc_cpu[rp++] = cpu_to_le32(bta->buf_dma + bp);
bp += bta->line_bytes;
}
bta->risc_cpu[rp++] = cpu_to_le32(RISC_SYNC|RISC_SYNC_VRO);
bta->risc_cpu[rp++] = cpu_to_le32(0);
bta->risc_cpu[rp++] = cpu_to_le32(RISC_JUMP);
bta->risc_cpu[rp++] = cpu_to_le32(bta->risc_dma);
return 0;
}
static int start_recording(struct btaudio *bta)
{
int ret;
if (0 != (ret = alloc_buffer(bta)))
return ret;
if (0 != (ret = make_risc(bta)))
return ret;
btwrite(bta->risc_dma, REG_RISC_STRT_ADD);
btwrite((bta->line_count << 16) | bta->line_bytes,
REG_PACKET_LEN);
btwrite(IRQ_BTAUDIO, REG_INT_MASK);
if (bta->analog) {
btwrite(DMA_CTL_ACAP_EN |
DMA_CTL_RISC_EN |
DMA_CTL_FIFO_EN |
DMA_CTL_DA_ES2 |
((bta->bits == 8) ? DMA_CTL_DA_SBR : 0) |
(bta->gain[bta->source] << 28) |
(bta->source << 24) |
(bta->decimation << 8),
REG_GPIO_DMA_CTL);
} else {
btwrite(DMA_CTL_ACAP_EN |
DMA_CTL_RISC_EN |
DMA_CTL_FIFO_EN |
DMA_CTL_DA_ES2 |
DMA_CTL_A_PWRDN |
(1 << 6) |
((bta->bits == 8) ? DMA_CTL_DA_SBR : 0) |
(bta->gain[bta->source] << 28) |
(bta->source << 24) |
(bta->decimation << 8),
REG_GPIO_DMA_CTL);
}
bta->dma_block = 0;
bta->read_offset = 0;
bta->read_count = 0;
bta->recording = 1;
if (debug)
printk(KERN_DEBUG "btaudio: recording started\n");
return 0;
}
static void stop_recording(struct btaudio *bta)
{
btand(~15, REG_GPIO_DMA_CTL);
bta->recording = 0;
if (debug)
printk(KERN_DEBUG "btaudio: recording stopped\n");
}
/* -------------------------------------------------------------- */
static int btaudio_mixer_open(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
struct btaudio *bta;
for (bta = btaudios; bta != NULL; bta = bta->next)
if (bta->mixer_dev == minor)
break;
if (NULL == bta)
return -ENODEV;
if (debug)
printk("btaudio: open mixer [%d]\n",minor);
file->private_data = bta;
return 0;
}
static int btaudio_mixer_release(struct inode *inode, struct file *file)
{
return 0;
}
static int btaudio_mixer_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct btaudio *bta = file->private_data;
int ret,val=0,i=0;
void __user *argp = (void __user *)arg;
if (cmd == SOUND_MIXER_INFO) {
mixer_info info;
memset(&info,0,sizeof(info));
strlcpy(info.id,"bt878",sizeof(info.id));
strlcpy(info.name,"Brooktree Bt878 audio",sizeof(info.name));
info.modify_counter = bta->mixcount;
if (copy_to_user(argp, &info, sizeof(info)))
return -EFAULT;
return 0;
}
if (cmd == SOUND_OLD_MIXER_INFO) {
_old_mixer_info info;
memset(&info,0,sizeof(info));
strlcpy(info.id, "bt878", sizeof(info.id));
strlcpy(info.name,"Brooktree Bt878 audio",sizeof(info.name));
if (copy_to_user(argp, &info, sizeof(info)))
return -EFAULT;
return 0;
}
if (cmd == OSS_GETVERSION)
return put_user(SOUND_VERSION, (int __user *)argp);
/* read */
if (_SIOC_DIR(cmd) & _SIOC_WRITE)
if (get_user(val, (int __user *)argp))
return -EFAULT;
switch (cmd) {
case MIXER_READ(SOUND_MIXER_CAPS):
ret = SOUND_CAP_EXCL_INPUT;
break;
case MIXER_READ(SOUND_MIXER_STEREODEVS):
ret = 0;
break;
case MIXER_READ(SOUND_MIXER_RECMASK):
case MIXER_READ(SOUND_MIXER_DEVMASK):
ret = SOUND_MASK_LINE1|SOUND_MASK_LINE2|SOUND_MASK_LINE3;
break;
case MIXER_WRITE(SOUND_MIXER_RECSRC):
if (val & SOUND_MASK_LINE1 && bta->source != 0)
bta->source = 0;
else if (val & SOUND_MASK_LINE2 && bta->source != 1)
bta->source = 1;
else if (val & SOUND_MASK_LINE3 && bta->source != 2)
bta->source = 2;
btaor((bta->gain[bta->source] << 28) |
(bta->source << 24),
0x0cffffff, REG_GPIO_DMA_CTL);
case MIXER_READ(SOUND_MIXER_RECSRC):
switch (bta->source) {
case 0: ret = SOUND_MASK_LINE1; break;
case 1: ret = SOUND_MASK_LINE2; break;
case 2: ret = SOUND_MASK_LINE3; break;
default: ret = 0;
}
break;
case MIXER_WRITE(SOUND_MIXER_LINE1):
case MIXER_WRITE(SOUND_MIXER_LINE2):
case MIXER_WRITE(SOUND_MIXER_LINE3):
if (MIXER_WRITE(SOUND_MIXER_LINE1) == cmd)
i = 0;
if (MIXER_WRITE(SOUND_MIXER_LINE2) == cmd)
i = 1;
if (MIXER_WRITE(SOUND_MIXER_LINE3) == cmd)
i = 2;
bta->gain[i] = (val & 0xff) * 15 / 100;
if (bta->gain[i] > 15) bta->gain[i] = 15;
if (bta->gain[i] < 0) bta->gain[i] = 0;
if (i == bta->source)
btaor((bta->gain[bta->source]<<28),
0x0fffffff, REG_GPIO_DMA_CTL);
ret = bta->gain[i] * 100 / 15;
ret |= ret << 8;
break;
case MIXER_READ(SOUND_MIXER_LINE1):
case MIXER_READ(SOUND_MIXER_LINE2):
case MIXER_READ(SOUND_MIXER_LINE3):
if (MIXER_READ(SOUND_MIXER_LINE1) == cmd)
i = 0;
if (MIXER_READ(SOUND_MIXER_LINE2) == cmd)
i = 1;
if (MIXER_READ(SOUND_MIXER_LINE3) == cmd)
i = 2;
ret = bta->gain[i] * 100 / 15;
ret |= ret << 8;
break;
default:
return -EINVAL;
}
if (put_user(ret, (int __user *)argp))
return -EFAULT;
return 0;
}
static const struct file_operations btaudio_mixer_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.open = btaudio_mixer_open,
.release = btaudio_mixer_release,
.ioctl = btaudio_mixer_ioctl,
};
/* -------------------------------------------------------------- */
static int btaudio_dsp_open(struct inode *inode, struct file *file,
struct btaudio *bta, int analog)
{
mutex_lock(&bta->lock);
if (bta->users)
goto busy;
bta->users++;
file->private_data = bta;
bta->analog = analog;
bta->dma_block = 0;
bta->read_offset = 0;
bta->read_count = 0;
bta->sampleshift = 0;
mutex_unlock(&bta->lock);
return 0;
busy:
mutex_unlock(&bta->lock);
return -EBUSY;
}
static int btaudio_dsp_open_digital(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
struct btaudio *bta;
for (bta = btaudios; bta != NULL; bta = bta->next)
if (bta->dsp_digital == minor)
break;
if (NULL == bta)
return -ENODEV;
if (debug)
printk("btaudio: open digital dsp [%d]\n",minor);
return btaudio_dsp_open(inode,file,bta,0);
}
static int btaudio_dsp_open_analog(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
struct btaudio *bta;
for (bta = btaudios; bta != NULL; bta = bta->next)
if (bta->dsp_analog == minor)
break;
if (NULL == bta)
return -ENODEV;
if (debug)
printk("btaudio: open analog dsp [%d]\n",minor);
return btaudio_dsp_open(inode,file,bta,1);
}
static int btaudio_dsp_release(struct inode *inode, struct file *file)
{
struct btaudio *bta = file->private_data;
mutex_lock(&bta->lock);
if (bta->recording)
stop_recording(bta);
bta->users--;
mutex_unlock(&bta->lock);
return 0;
}
static ssize_t btaudio_dsp_read(struct file *file, char __user *buffer,
size_t swcount, loff_t *ppos)
{
struct btaudio *bta = file->private_data;
int hwcount = swcount << bta->sampleshift;
int nsrc, ndst, err, ret = 0;
DECLARE_WAITQUEUE(wait, current);
add_wait_queue(&bta->readq, &wait);
mutex_lock(&bta->lock);
while (swcount > 0) {
if (0 == bta->read_count) {
if (!bta->recording) {
if (0 != (err = start_recording(bta))) {
if (0 == ret)
ret = err;
break;
}
}
if (file->f_flags & O_NONBLOCK) {
if (0 == ret)
ret = -EAGAIN;
break;
}
mutex_unlock(&bta->lock);
current->state = TASK_INTERRUPTIBLE;
schedule();
mutex_lock(&bta->lock);
if(signal_pending(current)) {
if (0 == ret)
ret = -EINTR;
break;
}
}
nsrc = (bta->read_count < hwcount) ? bta->read_count : hwcount;
if (nsrc > bta->buf_size - bta->read_offset)
nsrc = bta->buf_size - bta->read_offset;
ndst = nsrc >> bta->sampleshift;
if ((bta->analog && 0 == bta->sampleshift) ||
(!bta->analog && 2 == bta->channels)) {
/* just copy */
if (copy_to_user(buffer + ret, bta->buf_cpu + bta->read_offset, nsrc)) {
if (0 == ret)
ret = -EFAULT;
break;
}
} else if (!bta->analog) {
/* stereo => mono (digital audio) */
__s16 *src = (__s16*)(bta->buf_cpu + bta->read_offset);
__s16 __user *dst = (__s16 __user *)(buffer + ret);
__s16 avg;
int n = ndst>>1;
if (!access_ok(VERIFY_WRITE, dst, ndst)) {
if (0 == ret)
ret = -EFAULT;
break;
}
for (; n; n--, dst++) {
avg = (__s16)le16_to_cpu(*src) / 2; src++;
avg += (__s16)le16_to_cpu(*src) / 2; src++;
__put_user(cpu_to_le16(avg),dst);
}
} else if (8 == bta->bits) {
/* copy + byte downsampling (audio A/D) */
__u8 *src = bta->buf_cpu + bta->read_offset;
__u8 __user *dst = buffer + ret;
int n = ndst;
if (!access_ok(VERIFY_WRITE, dst, ndst)) {
if (0 == ret)
ret = -EFAULT;
break;
}
for (; n; n--, src += (1 << bta->sampleshift), dst++)
__put_user(*src, dst);
} else {
/* copy + word downsampling (audio A/D) */
__u16 *src = (__u16*)(bta->buf_cpu + bta->read_offset);
__u16 __user *dst = (__u16 __user *)(buffer + ret);
int n = ndst>>1;
if (!access_ok(VERIFY_WRITE,dst,ndst)) {
if (0 == ret)
ret = -EFAULT;
break;
}
for (; n; n--, src += (1 << bta->sampleshift), dst++)
__put_user(*src, dst);
}
ret += ndst;
swcount -= ndst;
hwcount -= nsrc;
bta->read_count -= nsrc;
bta->read_offset += nsrc;
if (bta->read_offset == bta->buf_size)
bta->read_offset = 0;
}
mutex_unlock(&bta->lock);
remove_wait_queue(&bta->readq, &wait);
current->state = TASK_RUNNING;
return ret;
}
static ssize_t btaudio_dsp_write(struct file *file, const char __user *buffer,
size_t count, loff_t *ppos)
{
return -EINVAL;
}
static int btaudio_dsp_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct btaudio *bta = file->private_data;
int s, i, ret, val = 0;
void __user *argp = (void __user *)arg;
int __user *p = argp;
switch (cmd) {
case OSS_GETVERSION:
return put_user(SOUND_VERSION, p);
case SNDCTL_DSP_GETCAPS:
return 0;
case SNDCTL_DSP_SPEED:
if (get_user(val, p))
return -EFAULT;
if (bta->analog) {
for (s = 0; s < 16; s++)
if (val << s >= HWBASE_AD*4/15)
break;
for (i = 15; i >= 5; i--)
if (val << s <= HWBASE_AD*4/i)
break;
bta->sampleshift = s;
bta->decimation = i;
if (debug)
printk(KERN_DEBUG "btaudio: rate: req=%d "
"dec=%d shift=%d hwrate=%d swrate=%d\n",
val,i,s,(HWBASE_AD*4/i),(HWBASE_AD*4/i)>>s);
} else {
bta->sampleshift = (bta->channels == 2) ? 0 : 1;
bta->decimation = 0;
}
if (bta->recording) {
mutex_lock(&bta->lock);
stop_recording(bta);
start_recording(bta);
mutex_unlock(&bta->lock);
}
/* fall through */
case SOUND_PCM_READ_RATE:
if (bta->analog) {
return put_user(HWBASE_AD*4/bta->decimation>>bta->sampleshift, p);
} else {
return put_user(bta->rate, p);
}
case SNDCTL_DSP_STEREO:
if (!bta->analog) {
if (get_user(val, p))
return -EFAULT;
bta->channels = (val > 0) ? 2 : 1;
bta->sampleshift = (bta->channels == 2) ? 0 : 1;
if (debug)
printk(KERN_INFO
"btaudio: stereo=%d channels=%d\n",
val,bta->channels);
} else {
if (val == 1)
return -EFAULT;
else {
bta->channels = 1;
if (debug)
printk(KERN_INFO
"btaudio: stereo=0 channels=1\n");
}
}
return put_user((bta->channels)-1, p);
case SNDCTL_DSP_CHANNELS:
if (!bta->analog) {
if (get_user(val, p))
return -EFAULT;
bta->channels = (val > 1) ? 2 : 1;
bta->sampleshift = (bta->channels == 2) ? 0 : 1;
if (debug)
printk(KERN_DEBUG
"btaudio: val=%d channels=%d\n",
val,bta->channels);
}
/* fall through */
case SOUND_PCM_READ_CHANNELS:
return put_user(bta->channels, p);
case SNDCTL_DSP_GETFMTS: /* Returns a mask */
if (bta->analog)
return put_user(AFMT_S16_LE|AFMT_S8, p);
else
return put_user(AFMT_S16_LE, p);
case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
if (get_user(val, p))
return -EFAULT;
if (val != AFMT_QUERY) {
if (bta->analog)
bta->bits = (val == AFMT_S8) ? 8 : 16;
else
bta->bits = 16;
if (bta->recording) {
mutex_lock(&bta->lock);
stop_recording(bta);
start_recording(bta);
mutex_unlock(&bta->lock);
}
}
if (debug)
printk(KERN_DEBUG "btaudio: fmt: bits=%d\n",bta->bits);
return put_user((bta->bits==16) ? AFMT_S16_LE : AFMT_S8,
p);
break;
case SOUND_PCM_READ_BITS:
return put_user(bta->bits, p);
case SNDCTL_DSP_NONBLOCK:
file->f_flags |= O_NONBLOCK;
return 0;
case SNDCTL_DSP_RESET:
if (bta->recording) {
mutex_lock(&bta->lock);
stop_recording(bta);
mutex_unlock(&bta->lock);
}
return 0;
case SNDCTL_DSP_GETBLKSIZE:
if (!bta->recording) {
if (0 != (ret = alloc_buffer(bta)))
return ret;
if (0 != (ret = make_risc(bta)))
return ret;
}
return put_user(bta->block_bytes>>bta->sampleshift,p);
case SNDCTL_DSP_SYNC:
/* NOP */
return 0;
case SNDCTL_DSP_GETISPACE:
{
audio_buf_info info;
if (!bta->recording)
return -EINVAL;
info.fragsize = bta->block_bytes>>bta->sampleshift;
info.fragstotal = bta->block_count;
info.bytes = bta->read_count;
info.fragments = info.bytes / info.fragsize;
if (debug)
printk(KERN_DEBUG "btaudio: SNDCTL_DSP_GETISPACE "
"returns %d/%d/%d/%d\n",
info.fragsize, info.fragstotal,
info.bytes, info.fragments);
if (copy_to_user(argp, &info, sizeof(info)))
return -EFAULT;
return 0;
}
#if 0 /* TODO */
case SNDCTL_DSP_GETTRIGGER:
case SNDCTL_DSP_SETTRIGGER:
case SNDCTL_DSP_SETFRAGMENT:
#endif
default:
return -EINVAL;
}
}
static unsigned int btaudio_dsp_poll(struct file *file, struct poll_table_struct *wait)
{
struct btaudio *bta = file->private_data;
unsigned int mask = 0;
poll_wait(file, &bta->readq, wait);
if (0 != bta->read_count)
mask |= (POLLIN | POLLRDNORM);
return mask;
}
static const struct file_operations btaudio_digital_dsp_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.open = btaudio_dsp_open_digital,
.release = btaudio_dsp_release,
.read = btaudio_dsp_read,
.write = btaudio_dsp_write,
.ioctl = btaudio_dsp_ioctl,
.poll = btaudio_dsp_poll,
};
static const struct file_operations btaudio_analog_dsp_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.open = btaudio_dsp_open_analog,
.release = btaudio_dsp_release,
.read = btaudio_dsp_read,
.write = btaudio_dsp_write,
.ioctl = btaudio_dsp_ioctl,
.poll = btaudio_dsp_poll,
};
/* -------------------------------------------------------------- */
static char *irq_name[] = { "", "", "", "OFLOW", "", "", "", "", "", "", "",
"RISCI", "FBUS", "FTRGT", "FDSR", "PPERR",
"RIPERR", "PABORT", "OCERR", "SCERR" };
static irqreturn_t btaudio_irq(int irq, void *dev_id)
{
int count = 0;
u32 stat,astat;
struct btaudio *bta = dev_id;
int handled = 0;
for (;;) {
count++;
stat = btread(REG_INT_STAT);
astat = stat & btread(REG_INT_MASK);
if (!astat)
return IRQ_RETVAL(handled);
handled = 1;
btwrite(astat,REG_INT_STAT);
if (irq_debug) {
int i;
printk(KERN_DEBUG "btaudio: irq loop=%d risc=%x, bits:",
count, stat>>28);
for (i = 0; i < (sizeof(irq_name)/sizeof(char*)); i++) {
if (stat & (1 << i))
printk(" %s",irq_name[i]);
if (astat & (1 << i))
printk("*");
}
printk("\n");
}
if (stat & IRQ_RISCI) {
int blocks;
blocks = (stat >> 28) - bta->dma_block;
if (blocks < 0)
blocks += bta->block_count;
bta->dma_block = stat >> 28;
if (bta->read_count + 2*bta->block_bytes > bta->buf_size) {
stop_recording(bta);
printk(KERN_INFO "btaudio: buffer overrun\n");
}
if (blocks > 0) {
bta->read_count += blocks * bta->block_bytes;
wake_up_interruptible(&bta->readq);
}
}
if (count > 10) {
printk(KERN_WARNING
"btaudio: Oops - irq mask cleared\n");
btwrite(0, REG_INT_MASK);
}
}
return IRQ_NONE;
}
/* -------------------------------------------------------------- */
static unsigned int dsp1 = -1;
static unsigned int dsp2 = -1;
static unsigned int mixer = -1;
static int latency = -1;
static int digital = 1;
static int analog = 1;
static int rate;
#define BTA_OSPREY200 1
static struct cardinfo cards[] = {
[0] = {
.name = "default",
.rate = 32000,
},
[BTA_OSPREY200] = {
.name = "Osprey 200",
.rate = 44100,
},
};
static int __devinit btaudio_probe(struct pci_dev *pci_dev,
const struct pci_device_id *pci_id)
{
struct btaudio *bta;
struct cardinfo *card = &cards[pci_id->driver_data];
unsigned char revision,lat;
int rc = -EBUSY;
if (pci_enable_device(pci_dev))
return -EIO;
if (!request_mem_region(pci_resource_start(pci_dev,0),
pci_resource_len(pci_dev,0),
"btaudio")) {
return -EBUSY;
}
bta = kzalloc(sizeof(*bta),GFP_ATOMIC);
if (!bta) {
rc = -ENOMEM;
goto fail0;
}
bta->pci = pci_dev;
bta->irq = pci_dev->irq;
bta->mem = pci_resource_start(pci_dev,0);
bta->mmio = ioremap(pci_resource_start(pci_dev,0),
pci_resource_len(pci_dev,0));
bta->source = 1;
bta->bits = 8;
bta->channels = 1;
if (bta->analog) {
bta->decimation = 15;
} else {
bta->decimation = 0;
bta->sampleshift = 1;
}
/* sample rate */
bta->rate = card->rate;
if (rate)
bta->rate = rate;
mutex_init(&bta->lock);
init_waitqueue_head(&bta->readq);
if (-1 != latency) {
printk(KERN_INFO "btaudio: setting pci latency timer to %d\n",
latency);
pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
}
pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &revision);
pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &lat);
printk(KERN_INFO "btaudio: Bt%x (rev %d) at %02x:%02x.%x, ",
pci_dev->device,revision,pci_dev->bus->number,
PCI_SLOT(pci_dev->devfn),PCI_FUNC(pci_dev->devfn));
printk("irq: %d, latency: %d, mmio: 0x%lx\n",
bta->irq, lat, bta->mem);
printk("btaudio: using card config \"%s\"\n", card->name);
/* init hw */
btwrite(0, REG_GPIO_DMA_CTL);
btwrite(0, REG_INT_MASK);
btwrite(~0U, REG_INT_STAT);
pci_set_master(pci_dev);
if ((rc = request_irq(bta->irq, btaudio_irq, IRQF_SHARED|IRQF_DISABLED,
"btaudio",(void *)bta)) < 0) {
printk(KERN_WARNING
"btaudio: can't request irq (rc=%d)\n",rc);
goto fail1;
}
/* register devices */
if (digital) {
rc = bta->dsp_digital =
register_sound_dsp(&btaudio_digital_dsp_fops,dsp1);
if (rc < 0) {
printk(KERN_WARNING
"btaudio: can't register digital dsp (rc=%d)\n",rc);
goto fail2;
}
printk(KERN_INFO "btaudio: registered device dsp%d [digital]\n",
bta->dsp_digital >> 4);
}
if (analog) {
rc = bta->dsp_analog =
register_sound_dsp(&btaudio_analog_dsp_fops,dsp2);
if (rc < 0) {
printk(KERN_WARNING
"btaudio: can't register analog dsp (rc=%d)\n",rc);
goto fail3;
}
printk(KERN_INFO "btaudio: registered device dsp%d [analog]\n",
bta->dsp_analog >> 4);
rc = bta->mixer_dev = register_sound_mixer(&btaudio_mixer_fops,mixer);
if (rc < 0) {
printk(KERN_WARNING
"btaudio: can't register mixer (rc=%d)\n",rc);
goto fail4;
}
printk(KERN_INFO "btaudio: registered device mixer%d\n",
bta->mixer_dev >> 4);
}
/* hook into linked list */
bta->next = btaudios;
btaudios = bta;
pci_set_drvdata(pci_dev,bta);
return 0;
fail4:
unregister_sound_dsp(bta->dsp_analog);
fail3:
if (digital)
unregister_sound_dsp(bta->dsp_digital);
fail2:
free_irq(bta->irq,bta);
fail1:
iounmap(bta->mmio);
kfree(bta);
fail0:
release_mem_region(pci_resource_start(pci_dev,0),
pci_resource_len(pci_dev,0));
return rc;
}
static void __devexit btaudio_remove(struct pci_dev *pci_dev)
{
struct btaudio *bta = pci_get_drvdata(pci_dev);
struct btaudio *walk;
/* turn off all DMA / IRQs */
btand(~15, REG_GPIO_DMA_CTL);
btwrite(0, REG_INT_MASK);
btwrite(~0U, REG_INT_STAT);
/* unregister devices */
if (digital) {
unregister_sound_dsp(bta->dsp_digital);
}
if (analog) {
unregister_sound_dsp(bta->dsp_analog);
unregister_sound_mixer(bta->mixer_dev);
}
/* free resources */
free_buffer(bta);
free_irq(bta->irq,bta);
release_mem_region(pci_resource_start(pci_dev,0),
pci_resource_len(pci_dev,0));
iounmap(bta->mmio);
/* remove from linked list */
if (bta == btaudios) {
btaudios = NULL;
} else {
for (walk = btaudios; walk->next != bta; walk = walk->next)
; /* if (NULL == walk->next) BUG(); */
walk->next = bta->next;
}
pci_set_drvdata(pci_dev, NULL);
kfree(bta);
return;
}
/* -------------------------------------------------------------- */
static struct pci_device_id btaudio_pci_tbl[] = {
{
.vendor = PCI_VENDOR_ID_BROOKTREE,
.device = 0x0878,
.subvendor = 0x0070,
.subdevice = 0xff01,
.driver_data = BTA_OSPREY200,
},{
.vendor = PCI_VENDOR_ID_BROOKTREE,
.device = 0x0878,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},{
.vendor = PCI_VENDOR_ID_BROOKTREE,
.device = 0x0878,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},{
/* --- end of list --- */
}
};
static struct pci_driver btaudio_pci_driver = {
.name = "btaudio",
.id_table = btaudio_pci_tbl,
.probe = btaudio_probe,
.remove = __devexit_p(btaudio_remove),
};
static int btaudio_init_module(void)
{
printk(KERN_INFO "btaudio: driver version 0.7 loaded [%s%s%s]\n",
digital ? "digital" : "",
analog && digital ? "+" : "",
analog ? "analog" : "");
return pci_register_driver(&btaudio_pci_driver);
}
static void btaudio_cleanup_module(void)
{
pci_unregister_driver(&btaudio_pci_driver);
return;
}
module_init(btaudio_init_module);
module_exit(btaudio_cleanup_module);
module_param(dsp1, int, S_IRUGO);
module_param(dsp2, int, S_IRUGO);
module_param(mixer, int, S_IRUGO);
module_param(debug, int, S_IRUGO | S_IWUSR);
module_param(irq_debug, int, S_IRUGO | S_IWUSR);
module_param(digital, int, S_IRUGO);
module_param(analog, int, S_IRUGO);
module_param(rate, int, S_IRUGO);
module_param(latency, int, S_IRUGO);
MODULE_PARM_DESC(latency,"pci latency timer");
MODULE_DEVICE_TABLE(pci, btaudio_pci_tbl);
MODULE_DESCRIPTION("bt878 audio dma driver");
MODULE_AUTHOR("Gerd Knorr");
MODULE_LICENSE("GPL");
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
sound/oss/cs4232.c deleted 100644 → 0
View file @ b4cf9c34
/*
* Copyright (C) by Hannu Savolainen 1993-1997
*
* cs4232.c
*
* The low level driver for Crystal CS4232 based cards. The CS4232 is
* a PnP compatible chip which contains a CS4231A codec, SB emulation,
* a MPU401 compatible MIDI port, joystick and synthesizer and IDE CD-ROM
* interfaces. This is just a temporary driver until full PnP support
* gets implemented. Just the WSS codec, FM synth and the MIDI ports are
* supported. Other interfaces are left uninitialized.
*
* ifdef ...WAVEFRONT...
*
* Support is provided for initializing the WaveFront synth
* interface as well, which is logical device #4. Note that if
* you have a Tropez+ card, you probably don't need to setup
* the CS4232-supported MIDI interface, since it corresponds to
* the internal 26-pin header that's hard to access. Using this
* requires an additional IRQ, a resource none too plentiful in
* this environment. Just don't set module parameters mpuio and
* mpuirq, and the MIDI port will be left uninitialized. You can
* still use the ICS2115 hosted MIDI interface which corresponds
* to the 9-pin D connector on the back of the card.
*
* endif ...WAVEFRONT...
*
* Supported chips are:
* CS4232
* CS4236
* CS4236B
*
* Note: You will need a PnP config setup to initialise some CS4232 boards
* anyway.
*
* Changes
* John Rood Added Bose Sound System Support.
* Toshio Spoor
* Alan Cox Modularisation, Basic cleanups.
* Paul Barton-Davis Separated MPU configuration, added
* Tropez+ (WaveFront) support
* Christoph Hellwig Adapted to module_init/module_exit,
* simple cleanups
* Arnaldo C. de Melo got rid of attach_uart401
* Bartlomiej Zolnierkiewicz
* Added some __init/__initdata/__exit
* Marcus Meissner Added ISA PnP support.
*/
#include <linux/pnp.h>
#include <linux/module.h>
#include <linux/init.h>
#include "sound_config.h"
#include "ad1848.h"
#include "mpu401.h"
#define KEY_PORT 0x279 /* Same as LPT1 status port */
#define CSN_NUM 0x99 /* Just a random number */
#define INDEX_ADDRESS 0x00 /* (R0) Index Address Register */
#define INDEX_DATA 0x01 /* (R1) Indexed Data Register */
#define PIN_CONTROL 0x0a /* (I10) Pin Control */
#define ENABLE_PINS 0xc0 /* XCTRL0/XCTRL1 enable */
static void CS_OUT(unsigned char a)
{
outb(a, KEY_PORT);
}
#define CS_OUT2(a, b) {CS_OUT(a);CS_OUT(b);}
#define CS_OUT3(a, b, c) {CS_OUT(a);CS_OUT(b);CS_OUT(c);}
static int __initdata bss = 0;
static int mpu_base, mpu_irq;
static int synth_base, synth_irq;
static int mpu_detected;
static int probe_cs4232_mpu(struct address_info *hw_config)
{
/*
* Just write down the config values.
*/
mpu_base = hw_config->io_base;
mpu_irq = hw_config->irq;
return 1;
}
static unsigned char crystal_key[] = /* A 32 byte magic key sequence */
{
0x96, 0x35, 0x9a, 0xcd, 0xe6, 0xf3, 0x79, 0xbc,
0x5e, 0xaf, 0x57, 0x2b, 0x15, 0x8a, 0xc5, 0xe2,
0xf1, 0xf8, 0x7c, 0x3e, 0x9f, 0x4f, 0x27, 0x13,
0x09, 0x84, 0x42, 0xa1, 0xd0, 0x68, 0x34, 0x1a
};
static void sleep(unsigned howlong)
{
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(howlong);
}
static void enable_xctrl(int baseio)
{
unsigned char regd;
/*
* Some IBM Aptiva's have the Bose Sound System. By default
* the Bose Amplifier is disabled. The amplifier will be
* activated, by setting the XCTRL0 and XCTRL1 bits.
* Volume of the monitor bose speakers/woofer, can then
* be set by changing the PCM volume.
*
*/
printk("cs4232: enabling Bose Sound System Amplifier.\n");
/* Switch to Pin Control Address */
regd = inb(baseio + INDEX_ADDRESS) & 0xe0;
outb(((unsigned char) (PIN_CONTROL | regd)), baseio + INDEX_ADDRESS );
/* Activate the XCTRL0 and XCTRL1 Pins */
regd = inb(baseio + INDEX_DATA);
outb(((unsigned char) (ENABLE_PINS | regd)), baseio + INDEX_DATA );
}
static int __init probe_cs4232(struct address_info *hw_config, int isapnp_configured)
{
int i, n;
int base = hw_config->io_base, irq = hw_config->irq;
int dma1 = hw_config->dma, dma2 = hw_config->dma2;
struct resource *ports;
if (base == -1 || irq == -1 || dma1 == -1) {
printk(KERN_ERR "cs4232: dma, irq and io must be set.\n");
return 0;
}
/*
* Verify that the I/O port range is free.
*/
ports = request_region(base, 4, "ad1848");
if (!ports) {
printk(KERN_ERR "cs4232.c: I/O port 0x%03x not free\n", base);
return 0;
}
if (ad1848_detect(ports, NULL, hw_config->osp)) {
goto got_it; /* The card is already active */
}
if (isapnp_configured) {
printk(KERN_ERR "cs4232.c: ISA PnP configured, but not detected?\n");
goto fail;
}
/*
* This version of the driver doesn't use the PnP method when configuring
* the card but a simplified method defined by Crystal. This means that
* just one CS4232 compatible device can exist on the system. Also this
* method conflicts with possible PnP support in the OS. For this reason
* driver is just a temporary kludge.
*
* Also the Cirrus/Crystal method doesn't always work. Try ISA PnP first ;)
*/
/*
* Repeat initialization few times since it doesn't always succeed in
* first time.
*/
for (n = 0; n < 4; n++)
{
/*
* Wake up the card by sending a 32 byte Crystal key to the key port.
*/
for (i = 0; i < 32; i++)
CS_OUT(crystal_key[i]);
sleep(HZ / 10);
/*
* Now set the CSN (Card Select Number).
*/
CS_OUT2(0x06, CSN_NUM);
/*
* Then set some config bytes. First logical device 0
*/
CS_OUT2(0x15, 0x00); /* Select logical device 0 (WSS/SB/FM) */
CS_OUT3(0x47, (base >> 8) & 0xff, base & 0xff); /* WSS base */
if (!request_region(0x388, 4, "FM")) /* Not free */
CS_OUT3(0x48, 0x00, 0x00) /* FM base off */
else {
release_region(0x388, 4);
CS_OUT3(0x48, 0x03, 0x88); /* FM base 0x388 */
}
CS_OUT3(0x42, 0x00, 0x00); /* SB base off */
CS_OUT2(0x22, irq); /* SB+WSS IRQ */
CS_OUT2(0x2a, dma1); /* SB+WSS DMA */
if (dma2 != -1)
CS_OUT2(0x25, dma2) /* WSS DMA2 */
else
CS_OUT2(0x25, 4); /* No WSS DMA2 */
CS_OUT2(0x33, 0x01); /* Activate logical dev 0 */
sleep(HZ / 10);
/*
* Initialize logical device 3 (MPU)
*/
if (mpu_base != 0 && mpu_irq != 0)
{
CS_OUT2(0x15, 0x03); /* Select logical device 3 (MPU) */
CS_OUT3(0x47, (mpu_base >> 8) & 0xff, mpu_base & 0xff); /* MPU base */
CS_OUT2(0x22, mpu_irq); /* MPU IRQ */
CS_OUT2(0x33, 0x01); /* Activate logical dev 3 */
}
if(synth_base != 0)
{
CS_OUT2 (0x15, 0x04); /* logical device 4 (WaveFront) */
CS_OUT3 (0x47, (synth_base >> 8) & 0xff,
synth_base & 0xff); /* base */
CS_OUT2 (0x22, synth_irq); /* IRQ */
CS_OUT2 (0x33, 0x01); /* Activate logical dev 4 */
}
/*
* Finally activate the chip
*/
CS_OUT(0x79);
sleep(HZ / 5);
/*
* Then try to detect the codec part of the chip
*/
if (ad1848_detect(ports, NULL, hw_config->osp))
goto got_it;
sleep(HZ);
}
fail:
release_region(base, 4);
return 0;
got_it:
if (dma2 == -1)
dma2 = dma1;
hw_config->slots[0] = ad1848_init("Crystal audio controller", ports,
irq,
dma1, /* Playback DMA */
dma2, /* Capture DMA */
0,
hw_config->osp,
THIS_MODULE);
if (hw_config->slots[0] != -1 &&
audio_devs[hw_config->slots[0]]->mixer_dev!=-1)
{
/* Assume the mixer map is as suggested in the CS4232 databook */
AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE);
AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_CD);
AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_SYNTH); /* FM synth */
}
if (mpu_base != 0 && mpu_irq != 0)
{
static struct address_info hw_config2 = {
0
}; /* Ensure it's initialized */
hw_config2.io_base = mpu_base;
hw_config2.irq = mpu_irq;
hw_config2.dma = -1;
hw_config2.dma2 = -1;
hw_config2.always_detect = 0;
hw_config2.name = NULL;
hw_config2.driver_use_1 = 0;
hw_config2.driver_use_2 = 0;
hw_config2.card_subtype = 0;
if (probe_uart401(&hw_config2, THIS_MODULE))
{
mpu_detected = 1;
}
else
{
mpu_base = mpu_irq = 0;
}
hw_config->slots[1] = hw_config2.slots[1];
}
if (bss)
enable_xctrl(base);
return 1;
}
static void __devexit unload_cs4232(struct address_info *hw_config)
{
int base = hw_config->io_base, irq = hw_config->irq;
int dma1 = hw_config->dma, dma2 = hw_config->dma2;
if (dma2 == -1)
dma2 = dma1;
ad1848_unload(base,
irq,
dma1, /* Playback DMA */
dma2, /* Capture DMA */
0);
sound_unload_audiodev(hw_config->slots[0]);
if (mpu_base != 0 && mpu_irq != 0 && mpu_detected)
{
static struct address_info hw_config2 =
{
0
}; /* Ensure it's initialized */
hw_config2.io_base = mpu_base;
hw_config2.irq = mpu_irq;
hw_config2.dma = -1;
hw_config2.dma2 = -1;
hw_config2.always_detect = 0;
hw_config2.name = NULL;
hw_config2.driver_use_1 = 0;
hw_config2.driver_use_2 = 0;
hw_config2.card_subtype = 0;
hw_config2.slots[1] = hw_config->slots[1];
unload_uart401(&hw_config2);
}
}
static struct address_info cfg;
static struct address_info cfg_mpu;
static int __initdata io = -1;
static int __initdata irq = -1;
static int __initdata dma = -1;
static int __initdata dma2 = -1;
static int __initdata mpuio = -1;
static int __initdata mpuirq = -1;
static int __initdata synthio = -1;
static int __initdata synthirq = -1;
static int __initdata isapnp = 1;
static unsigned int cs4232_devices;
MODULE_DESCRIPTION("CS4232 based soundcard driver");
MODULE_AUTHOR("Hannu Savolainen, Paul Barton-Davis");
MODULE_LICENSE("GPL");
module_param(io, int, 0);
MODULE_PARM_DESC(io,"base I/O port for AD1848");
module_param(irq, int, 0);
MODULE_PARM_DESC(irq,"IRQ for AD1848 chip");
module_param(dma, int, 0);
MODULE_PARM_DESC(dma,"8 bit DMA for AD1848 chip");
module_param(dma2, int, 0);
MODULE_PARM_DESC(dma2,"16 bit DMA for AD1848 chip");
module_param(mpuio, int, 0);
MODULE_PARM_DESC(mpuio,"MPU 401 base address");
module_param(mpuirq, int, 0);
MODULE_PARM_DESC(mpuirq,"MPU 401 IRQ");
module_param(synthio, int, 0);
MODULE_PARM_DESC(synthio,"Maui WaveTable base I/O port");
module_param(synthirq, int, 0);
MODULE_PARM_DESC(synthirq,"Maui WaveTable IRQ");
module_param(isapnp, bool, 0);
MODULE_PARM_DESC(isapnp,"Enable ISAPnP probing (default 1)");
module_param(bss, bool, 0);
MODULE_PARM_DESC(bss,"Enable Bose Sound System Support (default 0)");
/*
* Install a CS4232 based card. Need to have ad1848 and mpu401
* loaded ready.
*/
/* All cs4232 based cards have the main ad1848 card either as CSC0000 or
* CSC0100. */
static const struct pnp_device_id cs4232_pnp_table[] = {
{ .id = "CSC0100", .driver_data = 0 },
{ .id = "CSC0000", .driver_data = 0 },
/* Guillemot Turtlebeach something appears to be cs4232 compatible
* (untested) */
{ .id = "GIM0100", .driver_data = 0 },
{ .id = ""}
};
MODULE_DEVICE_TABLE(pnp, cs4232_pnp_table);
static int __init cs4232_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
{
struct address_info *isapnpcfg;
isapnpcfg = kmalloc(sizeof(*isapnpcfg),GFP_KERNEL);
if (!isapnpcfg)
return -ENOMEM;
isapnpcfg->irq = pnp_irq(dev, 0);
isapnpcfg->dma = pnp_dma(dev, 0);
isapnpcfg->dma2 = pnp_dma(dev, 1);
isapnpcfg->io_base = pnp_port_start(dev, 0);
if (probe_cs4232(isapnpcfg,TRUE) == 0) {
printk(KERN_ERR "cs4232: ISA PnP card found, but not detected?\n");
kfree(isapnpcfg);
return -ENODEV;
}
pnp_set_drvdata(dev,isapnpcfg);
cs4232_devices++;
return 0;
}
static void __devexit cs4232_pnp_remove(struct pnp_dev *dev)
{
struct address_info *cfg = pnp_get_drvdata(dev);
if (cfg) {
unload_cs4232(cfg);
kfree(cfg);
}
}
static struct pnp_driver cs4232_driver = {
.name = "cs4232",
.id_table = cs4232_pnp_table,
.probe = cs4232_pnp_probe,
.remove = __devexit_p(cs4232_pnp_remove),
};
static int __init init_cs4232(void)
{
#ifdef CONFIG_SOUND_WAVEFRONT_MODULE
if(synthio == -1)
printk(KERN_INFO "cs4232: set synthio and synthirq to use the wavefront facilities.\n");
else {
synth_base = synthio;
synth_irq = synthirq;
}
#else
if(synthio != -1)
printk(KERN_WARNING "cs4232: wavefront support not enabled in this driver.\n");
#endif
cfg.irq = -1;
if (isapnp) {
pnp_register_driver(&cs4232_driver);
if (cs4232_devices)
return 0;
}
if(io==-1||irq==-1||dma==-1)
{
printk(KERN_ERR "cs4232: Must set io, irq and dma.\n");
return -ENODEV;
}
cfg.io_base = io;
cfg.irq = irq;
cfg.dma = dma;
cfg.dma2 = dma2;
cfg_mpu.io_base = -1;
cfg_mpu.irq = -1;
if (mpuio != -1 && mpuirq != -1) {
cfg_mpu.io_base = mpuio;
cfg_mpu.irq = mpuirq;
probe_cs4232_mpu(&cfg_mpu); /* Bug always returns 0 not OK -- AC */
}
if (probe_cs4232(&cfg,FALSE) == 0)
return -ENODEV;
return 0;
}
static void __exit cleanup_cs4232(void)
{
pnp_unregister_driver(&cs4232_driver);
if (cfg.irq != -1)
unload_cs4232(&cfg); /* Unloads global MPU as well, if needed */
}
module_init(init_cs4232);
module_exit(cleanup_cs4232);
#ifndef MODULE
static int __init setup_cs4232(char *str)
{
/* io, irq, dma, dma2 mpuio, mpuirq*/
int ints[7];
/* If we have isapnp cards, no need for options */
pnp_register_driver(&cs4232_driver);
if (cs4232_devices)
return 1;
str = get_options(str, ARRAY_SIZE(ints), ints);
io = ints[1];
irq = ints[2];
dma = ints[3];
dma2 = ints[4];
mpuio = ints[5];
mpuirq = ints[6];
return 1;
}
__setup("cs4232=", setup_cs4232);
#endif
sound/oss/i810_audio.c deleted 100644 → 0
View file @ b4cf9c34
This source diff could not be displayed because it is too large. You can view the blob instead.
sound/oss/via82cxxx_audio.c deleted 100644 → 0
View file @ b4cf9c34
/*
* Support for VIA 82Cxxx Audio Codecs
* Copyright 1999,2000 Jeff Garzik
*
* Updated to support the VIA 8233/8235 audio subsystem
* Alan Cox <alan@redhat.com> (C) Copyright 2002, 2003 Red Hat Inc
*
* Distributed under the GNU GENERAL PUBLIC LICENSE (GPL) Version 2.
* See the "COPYING" file distributed with this software for more info.
* NO WARRANTY
*
* For a list of known bugs (errata) and documentation,
* see via-audio.pdf in Documentation/DocBook.
* If this documentation does not exist, run "make pdfdocs".
*/
#define VIA_VERSION "1.9.1-ac4-2.5"
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/poison.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/proc_fs.h>
#include <linux/spinlock.h>
#include <linux/sound.h>
#include <linux/poll.h>
#include <linux/soundcard.h>
#include <linux/ac97_codec.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <linux/mutex.h>
#include "sound_config.h"
#include "dev_table.h"
#include "mpu401.h"
#undef VIA_DEBUG /* define to enable debugging output and checks */
#ifdef VIA_DEBUG
/* note: prints function name for you */
#define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
#else
#define DPRINTK(fmt, args...)
#endif
#undef VIA_NDEBUG /* define to disable lightweight runtime checks */
#ifdef VIA_NDEBUG
#define assert(expr)
#else
#define assert(expr) \
if(!(expr)) { \
printk( "Assertion failed! %s,%s,%s,line=%d\n", \
#expr,__FILE__,__FUNCTION__,__LINE__); \
}
#endif
#define VIA_SUPPORT_MMAP 1 /* buggy, for now... */
#define MAX_CARDS 1
#define VIA_CARD_NAME "VIA 82Cxxx Audio driver " VIA_VERSION
#define VIA_MODULE_NAME "via82cxxx"
#define PFX VIA_MODULE_NAME ": "
#define VIA_COUNTER_LIMIT 100000
/* size of DMA buffers */
#define VIA_MAX_BUFFER_DMA_PAGES 32
/* buffering default values in ms */
#define VIA_DEFAULT_FRAG_TIME 20
#define VIA_DEFAULT_BUFFER_TIME 500
/* the hardware has a 256 fragment limit */
#define VIA_MIN_FRAG_NUMBER 2
#define VIA_MAX_FRAG_NUMBER 128
#define VIA_MAX_FRAG_SIZE PAGE_SIZE
#define VIA_MIN_FRAG_SIZE (VIA_MAX_BUFFER_DMA_PAGES * PAGE_SIZE / VIA_MAX_FRAG_NUMBER)
/* 82C686 function 5 (audio codec) PCI configuration registers */
#define VIA_ACLINK_STATUS 0x40
#define VIA_ACLINK_CTRL 0x41
#define VIA_FUNC_ENABLE 0x42
#define VIA_PNP_CONTROL 0x43
#define VIA_FM_NMI_CTRL 0x48
/*
* controller base 0 (scatter-gather) registers
*
* NOTE: Via datasheet lists first channel as "read"
* channel and second channel as "write" channel.
* I changed the naming of the constants to be more
* clear than I felt the datasheet to be.
*/
#define VIA_BASE0_PCM_OUT_CHAN 0x00 /* output PCM to user */
#define VIA_BASE0_PCM_OUT_CHAN_STATUS 0x00
#define VIA_BASE0_PCM_OUT_CHAN_CTRL 0x01
#define VIA_BASE0_PCM_OUT_CHAN_TYPE 0x02
#define VIA_BASE0_PCM_IN_CHAN 0x10 /* input PCM from user */
#define VIA_BASE0_PCM_IN_CHAN_STATUS 0x10
#define VIA_BASE0_PCM_IN_CHAN_CTRL 0x11
#define VIA_BASE0_PCM_IN_CHAN_TYPE 0x12
/* offsets from base */
#define VIA_PCM_STATUS 0x00
#define VIA_PCM_CONTROL 0x01
#define VIA_PCM_TYPE 0x02
#define VIA_PCM_LEFTVOL 0x02
#define VIA_PCM_RIGHTVOL 0x03
#define VIA_PCM_TABLE_ADDR 0x04
#define VIA_PCM_STOPRATE 0x08 /* 8233+ */
#define VIA_PCM_BLOCK_COUNT 0x0C
/* XXX unused DMA channel for FM PCM data */
#define VIA_BASE0_FM_OUT_CHAN 0x20
#define VIA_BASE0_FM_OUT_CHAN_STATUS 0x20
#define VIA_BASE0_FM_OUT_CHAN_CTRL 0x21
#define VIA_BASE0_FM_OUT_CHAN_TYPE 0x22
/* Six channel audio output on 8233 */
#define VIA_BASE0_MULTI_OUT_CHAN 0x40
#define VIA_BASE0_MULTI_OUT_CHAN_STATUS 0x40
#define VIA_BASE0_MULTI_OUT_CHAN_CTRL 0x41
#define VIA_BASE0_MULTI_OUT_CHAN_TYPE 0x42
#define VIA_BASE0_AC97_CTRL 0x80
#define VIA_BASE0_SGD_STATUS_SHADOW 0x84
#define VIA_BASE0_GPI_INT_ENABLE 0x8C
#define VIA_INTR_OUT ((1<<0) | (1<<4) | (1<<8))
#define VIA_INTR_IN ((1<<1) | (1<<5) | (1<<9))
#define VIA_INTR_FM ((1<<2) | (1<<6) | (1<<10))
#define VIA_INTR_MASK (VIA_INTR_OUT | VIA_INTR_IN | VIA_INTR_FM)
/* Newer VIA we need to monitor the low 3 bits of each channel. This
mask covers the channels we don't yet use as well
*/
#define VIA_NEW_INTR_MASK 0x77077777UL
/* VIA_BASE0_AUDIO_xxx_CHAN_TYPE bits */
#define VIA_IRQ_ON_FLAG (1<<0) /* int on each flagged scatter block */
#define VIA_IRQ_ON_EOL (1<<1) /* int at end of scatter list */
#define VIA_INT_SEL_PCI_LAST_LINE_READ (0) /* int at PCI read of last line */
#define VIA_INT_SEL_LAST_SAMPLE_SENT (1<<2) /* int at last sample sent */
#define VIA_INT_SEL_ONE_LINE_LEFT (1<<3) /* int at less than one line to send */
#define VIA_PCM_FMT_STEREO (1<<4) /* PCM stereo format (bit clear == mono) */
#define VIA_PCM_FMT_16BIT (1<<5) /* PCM 16-bit format (bit clear == 8-bit) */
#define VIA_PCM_REC_FIFO (1<<6) /* PCM Recording FIFO */
#define VIA_RESTART_SGD_ON_EOL (1<<7) /* restart scatter-gather at EOL */
#define VIA_PCM_FMT_MASK (VIA_PCM_FMT_STEREO|VIA_PCM_FMT_16BIT)
#define VIA_CHAN_TYPE_MASK (VIA_RESTART_SGD_ON_EOL | \
VIA_IRQ_ON_FLAG | \
VIA_IRQ_ON_EOL)
#define VIA_CHAN_TYPE_INT_SELECT (VIA_INT_SEL_LAST_SAMPLE_SENT)
/* PCI configuration register bits and masks */
#define VIA_CR40_AC97_READY 0x01
#define VIA_CR40_AC97_LOW_POWER 0x02
#define VIA_CR40_SECONDARY_READY 0x04
#define VIA_CR41_AC97_ENABLE 0x80 /* enable AC97 codec */
#define VIA_CR41_AC97_RESET 0x40 /* clear bit to reset AC97 */
#define VIA_CR41_AC97_WAKEUP 0x20 /* wake up from power-down mode */
#define VIA_CR41_AC97_SDO 0x10 /* force Serial Data Out (SDO) high */
#define VIA_CR41_VRA 0x08 /* enable variable sample rate */
#define VIA_CR41_PCM_ENABLE 0x04 /* AC Link SGD Read Channel PCM Data Output */
#define VIA_CR41_FM_PCM_ENABLE 0x02 /* AC Link FM Channel PCM Data Out */
#define VIA_CR41_SB_PCM_ENABLE 0x01 /* AC Link SB PCM Data Output */
#define VIA_CR41_BOOT_MASK (VIA_CR41_AC97_ENABLE | \
VIA_CR41_AC97_WAKEUP | \
VIA_CR41_AC97_SDO)
#define VIA_CR41_RUN_MASK (VIA_CR41_AC97_ENABLE | \
VIA_CR41_AC97_RESET | \
VIA_CR41_VRA | \
VIA_CR41_PCM_ENABLE)
#define VIA_CR42_SB_ENABLE 0x01
#define VIA_CR42_MIDI_ENABLE 0x02
#define VIA_CR42_FM_ENABLE 0x04
#define VIA_CR42_GAME_ENABLE 0x08
#define VIA_CR42_MIDI_IRQMASK 0x40
#define VIA_CR42_MIDI_PNP 0x80
#define VIA_CR44_SECOND_CODEC_SUPPORT (1 << 6)
#define VIA_CR44_AC_LINK_ACCESS (1 << 7)
#define VIA_CR48_FM_TRAP_TO_NMI (1 << 2)
/* controller base 0 register bitmasks */
#define VIA_INT_DISABLE_MASK (~(0x01|0x02))
#define VIA_SGD_STOPPED (1 << 2)
#define VIA_SGD_PAUSED (1 << 6)
#define VIA_SGD_ACTIVE (1 << 7)
#define VIA_SGD_TERMINATE (1 << 6)
#define VIA_SGD_FLAG (1 << 0)
#define VIA_SGD_EOL (1 << 1)
#define VIA_SGD_START (1 << 7)
#define VIA_CR80_FIRST_CODEC 0
#define VIA_CR80_SECOND_CODEC (1 << 30)
#define VIA_CR80_FIRST_CODEC_VALID (1 << 25)
#define VIA_CR80_VALID (1 << 25)
#define VIA_CR80_SECOND_CODEC_VALID (1 << 27)
#define VIA_CR80_BUSY (1 << 24)
#define VIA_CR83_BUSY (1)
#define VIA_CR83_FIRST_CODEC_VALID (1 << 1)
#define VIA_CR80_READ (1 << 23)
#define VIA_CR80_WRITE_MODE 0
#define VIA_CR80_REG_IDX(idx) ((((idx) & 0xFF) >> 1) << 16)
/* capabilities we announce */
#ifdef VIA_SUPPORT_MMAP
#define VIA_DSP_CAP (DSP_CAP_REVISION | DSP_CAP_DUPLEX | DSP_CAP_MMAP | \
DSP_CAP_TRIGGER | DSP_CAP_REALTIME)
#else
#define VIA_DSP_CAP (DSP_CAP_REVISION | DSP_CAP_DUPLEX | \
DSP_CAP_TRIGGER | DSP_CAP_REALTIME)
#endif
/* scatter-gather DMA table entry, exactly as passed to hardware */
struct via_sgd_table {
u32 addr;
u32 count; /* includes additional VIA_xxx bits also */
};
#define VIA_EOL (1 << 31)
#define VIA_FLAG (1 << 30)
#define VIA_STOP (1 << 29)
enum via_channel_states {
sgd_stopped = 0,
sgd_in_progress = 1,
};
struct via_buffer_pgtbl {
dma_addr_t handle;
void *cpuaddr;
};
struct via_channel {
atomic_t n_frags;
atomic_t hw_ptr;
wait_queue_head_t wait;
unsigned int sw_ptr;
unsigned int slop_len;
unsigned int n_irqs;
int bytes;
unsigned is_active : 1;
unsigned is_record : 1;
unsigned is_mapped : 1;
unsigned is_enabled : 1;
unsigned is_multi: 1; /* 8233 6 channel */
u8 pcm_fmt; /* VIA_PCM_FMT_xxx */
u8 channels; /* Channel count */
unsigned rate; /* sample rate */
unsigned int frag_size;
unsigned int frag_number;
unsigned char intmask;
volatile struct via_sgd_table *sgtable;
dma_addr_t sgt_handle;
unsigned int page_number;
struct via_buffer_pgtbl pgtbl[VIA_MAX_BUFFER_DMA_PAGES];
long iobase;
const char *name;
};
/* data stored for each chip */
struct via_info {
struct pci_dev *pdev;
long baseaddr;
struct ac97_codec *ac97;
spinlock_t ac97_lock;
spinlock_t lock;
int card_num; /* unique card number, from 0 */
int dev_dsp; /* /dev/dsp index from register_sound_dsp() */
unsigned rev_h : 1;
unsigned legacy: 1; /* Has legacy ports */
unsigned intmask: 1; /* Needs int bits */
unsigned sixchannel: 1; /* 8233/35 with 6 channel support */
unsigned volume: 1;
unsigned locked_rate : 1;
int mixer_vol; /* 8233/35 volume - not yet implemented */
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
and ch_fm to DX 2. DX 3 and REC0/REC1 are unused at the
moment */
struct via_channel ch_in;
struct via_channel ch_out;
struct via_channel ch_fm;
#ifdef CONFIG_MIDI_VIA82CXXX
void *midi_devc;
struct address_info midi_info;
#endif
};
/* number of cards, used for assigning unique numbers to cards */
static unsigned via_num_cards;
/****************************************************************
*
* prototypes
*
*
*/
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 __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 int via_dsp_release(struct inode *inode, struct file *file);
static int via_dsp_mmap(struct file *file, struct vm_area_struct *vma);
static u16 via_ac97_read_reg (struct ac97_codec *codec, u8 reg);
static void via_ac97_write_reg (struct ac97_codec *codec, u8 reg, u16 value);
static u8 via_ac97_wait_idle (struct via_info *card);
static void via_chan_free (struct via_info *card, struct via_channel *chan);
static void via_chan_clear (struct via_info *card, struct via_channel *chan);
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);
/****************************************************************
*
* Various data the driver needs
*
*
*/
static struct pci_device_id via_pci_tbl[] = {
{ PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_5,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
{ 0, }
};
MODULE_DEVICE_TABLE(pci,via_pci_tbl);
static struct pci_driver via_driver = {
.name = VIA_MODULE_NAME,
.id_table = via_pci_tbl,
.probe = via_init_one,
.remove = __devexit_p(via_remove_one),
};
/****************************************************************
*
* Low-level base 0 register read/write helpers
*
*
*/
/**
* via_chan_stop - Terminate DMA on specified PCM channel
* @iobase: PCI base address for SGD channel registers
*
* Terminate scatter-gather DMA operation for given
* channel (derived from @iobase), if DMA is active.
*
* Note that @iobase is not the PCI base address,
* but the PCI base address plus an offset to
* one of three PCM channels supported by the chip.
*
*/
static inline void via_chan_stop (long iobase)
{
if (inb (iobase + VIA_PCM_STATUS) & VIA_SGD_ACTIVE)
outb (VIA_SGD_TERMINATE, iobase + VIA_PCM_CONTROL);
}
/**
* via_chan_status_clear - Clear status flags on specified DMA channel
* @iobase: PCI base address for SGD channel registers
*
* Clear any pending status flags for the given
* DMA channel (derived from @iobase), if any
* flags are asserted.
*
* Note that @iobase is not the PCI base address,
* but the PCI base address plus an offset to
* one of three PCM channels supported by the chip.
*
*/
static inline void via_chan_status_clear (long iobase)
{
u8 tmp = inb (iobase + VIA_PCM_STATUS);
if (tmp != 0)
outb (tmp, iobase + VIA_PCM_STATUS);
}
/**
* sg_begin - Begin recording or playback on a PCM channel
* @chan: Channel for which DMA operation shall begin
*
* Start scatter-gather DMA for the given channel.
*
*/
static inline void sg_begin (struct via_channel *chan)
{
DPRINTK("Start with intmask %d\n", chan->intmask);
DPRINTK("About to start from %d to %d\n",
inl(chan->iobase + VIA_PCM_BLOCK_COUNT),
inb(chan->iobase + VIA_PCM_STOPRATE + 3));
outb (VIA_SGD_START|chan->intmask, chan->iobase + VIA_PCM_CONTROL);
DPRINTK("Status is now %02X\n", inb(chan->iobase + VIA_PCM_STATUS));
DPRINTK("Control is now %02X\n", inb(chan->iobase + VIA_PCM_CONTROL));
}
static int sg_active (long iobase)
{
u8 tmp = inb (iobase + VIA_PCM_STATUS);
if ((tmp & VIA_SGD_STOPPED) || (tmp & VIA_SGD_PAUSED)) {
printk(KERN_WARNING "via82cxxx warning: SG stopped or paused\n");
return 0;
}
if (tmp & VIA_SGD_ACTIVE)
return 1;
return 0;
}
static int via_sg_offset(struct via_channel *chan)
{
return inl (chan->iobase + VIA_PCM_BLOCK_COUNT) & 0x00FFFFFF;
}
/****************************************************************
*
* Miscellaneous debris
*
*
*/
/**
* via_syscall_down - down the card-specific syscell semaphore
* @card: Private info for specified board
* @nonblock: boolean, non-zero if O_NONBLOCK is set
*
* Encapsulates standard method of acquiring the syscall sem.
*
* Returns negative errno on error, or zero for success.
*/
static inline int via_syscall_down (struct via_info *card, int nonblock)
{
/* Thomas Sailer:
* EAGAIN is supposed to be used if IO is pending,
* not if there is contention on some internal
* synchronization primitive which should be
* held only for a short time anyway
*/
nonblock = 0;
if (nonblock) {
if (!mutex_trylock(&card->syscall_mutex))
return -EAGAIN;
} else {
if (mutex_lock_interruptible(&card->syscall_mutex))
return -ERESTARTSYS;
}
return 0;
}
/**
* via_stop_everything - Stop all audio operations
* @card: Private info for specified board
*
* Stops all DMA operations and interrupts, and clear
* any pending status bits resulting from those operations.
*/
static void via_stop_everything (struct via_info *card)
{
u8 tmp, new_tmp;
DPRINTK ("ENTER\n");
assert (card != NULL);
/*
* terminate any existing operations on audio read/write channels
*/
via_chan_stop (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN);
via_chan_stop (card->baseaddr + VIA_BASE0_PCM_IN_CHAN);
via_chan_stop (card->baseaddr + VIA_BASE0_FM_OUT_CHAN);
if(card->sixchannel)
via_chan_stop (card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN);
/*
* clear any existing stops / flags (sanity check mainly)
*/
via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN);
via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_IN_CHAN);
via_chan_status_clear (card->baseaddr + VIA_BASE0_FM_OUT_CHAN);
if(card->sixchannel)
via_chan_status_clear (card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN);
/*
* clear any enabled interrupt bits
*/
tmp = inb (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN_TYPE);
new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL);
if (tmp != new_tmp)
outb (0, card->baseaddr + VIA_BASE0_PCM_OUT_CHAN_TYPE);
tmp = inb (card->baseaddr + VIA_BASE0_PCM_IN_CHAN_TYPE);
new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL);
if (tmp != new_tmp)
outb (0, card->baseaddr + VIA_BASE0_PCM_IN_CHAN_TYPE);
tmp = inb (card->baseaddr + VIA_BASE0_FM_OUT_CHAN_TYPE);
new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL);
if (tmp != new_tmp)
outb (0, card->baseaddr + VIA_BASE0_FM_OUT_CHAN_TYPE);
if(card->sixchannel)
{
tmp = inb (card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN_TYPE);
new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL);
if (tmp != new_tmp)
outb (0, card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN_TYPE);
}
udelay(10);
/*
* clear any existing flags
*/
via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN);
via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_IN_CHAN);
via_chan_status_clear (card->baseaddr + VIA_BASE0_FM_OUT_CHAN);
DPRINTK ("EXIT\n");
}
/**
* via_set_rate - Set PCM rate for given channel
* @ac97: Pointer to generic codec info struct
* @chan: Private info for specified channel
* @rate: Desired PCM sample rate, in Khz
*
* Sets the PCM sample rate for a channel.
*
* Values for @rate are clamped to a range of 4000 Khz through 48000 Khz,
* due to hardware constraints.
*/
static int via_set_rate (struct ac97_codec *ac97,
struct via_channel *chan, unsigned rate)
{
struct via_info *card = ac97->private_data;
int rate_reg;
u32 dacp;
u32 mast_vol, phone_vol, mono_vol, pcm_vol;
u32 mute_vol = 0x8000; /* The mute volume? -- Seems to work! */
DPRINTK ("ENTER, rate = %d\n", rate);
if (chan->rate == rate)
goto out;
if (card->locked_rate) {
chan->rate = 48000;
goto out;
}
if (rate > 48000) rate = 48000;
if (rate < 4000) rate = 4000;
rate_reg = chan->is_record ? AC97_PCM_LR_ADC_RATE :
AC97_PCM_FRONT_DAC_RATE;
/* Save current state */
dacp=via_ac97_read_reg(ac97, AC97_POWER_CONTROL);
mast_vol = via_ac97_read_reg(ac97, AC97_MASTER_VOL_STEREO);
mono_vol = via_ac97_read_reg(ac97, AC97_MASTER_VOL_MONO);
phone_vol = via_ac97_read_reg(ac97, AC97_HEADPHONE_VOL);
pcm_vol = via_ac97_read_reg(ac97, AC97_PCMOUT_VOL);
/* Mute - largely reduces popping */
via_ac97_write_reg(ac97, AC97_MASTER_VOL_STEREO, mute_vol);
via_ac97_write_reg(ac97, AC97_MASTER_VOL_MONO, mute_vol);
via_ac97_write_reg(ac97, AC97_HEADPHONE_VOL, mute_vol);
via_ac97_write_reg(ac97, AC97_PCMOUT_VOL, mute_vol);
/* Power down the DAC */
via_ac97_write_reg(ac97, AC97_POWER_CONTROL, dacp|0x0200);
/* Set new rate */
via_ac97_write_reg (ac97, rate_reg, rate);
/* Power DAC back up */
via_ac97_write_reg(ac97, AC97_POWER_CONTROL, dacp);
udelay (200); /* reduces popping */
/* Restore volumes */
via_ac97_write_reg(ac97, AC97_MASTER_VOL_STEREO, mast_vol);
via_ac97_write_reg(ac97, AC97_MASTER_VOL_MONO, mono_vol);
via_ac97_write_reg(ac97, AC97_HEADPHONE_VOL, phone_vol);
via_ac97_write_reg(ac97, AC97_PCMOUT_VOL, pcm_vol);
/* the hardware might return a value different than what we
* passed to it, so read the rate value back from hardware
* to see what we came up with
*/
chan->rate = via_ac97_read_reg (ac97, rate_reg);
if (chan->rate == 0) {
card->locked_rate = 1;
chan->rate = 48000;
printk (KERN_WARNING PFX "Codec rate locked at 48Khz\n");
}
out:
DPRINTK ("EXIT, returning rate %d Hz\n", chan->rate);
return chan->rate;
}
/****************************************************************
*
* Channel-specific operations
*
*
*/
/**
* via_chan_init_defaults - Initialize a struct via_channel
* @card: Private audio chip info
* @chan: Channel to be initialized
*
* Zero @chan, and then set all static defaults for the structure.
*/
static void via_chan_init_defaults (struct via_info *card, struct via_channel *chan)
{
memset (chan, 0, sizeof (*chan));
if(card->intmask)
chan->intmask = 0x23; /* Turn on the IRQ bits */
if (chan == &card->ch_out) {
chan->name = "PCM-OUT";
if(card->sixchannel)
{
chan->iobase = card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN;
chan->is_multi = 1;
DPRINTK("Using multichannel for pcm out\n");
}
else
chan->iobase = card->baseaddr + VIA_BASE0_PCM_OUT_CHAN;
} else if (chan == &card->ch_in) {
chan->name = "PCM-IN";
chan->iobase = card->baseaddr + VIA_BASE0_PCM_IN_CHAN;
chan->is_record = 1;
} else if (chan == &card->ch_fm) {
chan->name = "PCM-OUT-FM";
chan->iobase = card->baseaddr + VIA_BASE0_FM_OUT_CHAN;
} else {
BUG();
}
init_waitqueue_head (&chan->wait);
chan->pcm_fmt = VIA_PCM_FMT_MASK;
chan->is_enabled = 1;
chan->frag_number = 0;
chan->frag_size = 0;
atomic_set(&chan->n_frags, 0);
atomic_set (&chan->hw_ptr, 0);
}
/**
* via_chan_init - Initialize PCM channel
* @card: Private audio chip info
* @chan: Channel to be initialized
*
* Performs some of the preparations necessary to begin
* using a PCM channel.
*
* Currently the preparations consist of
* setting the PCM channel to a known state.
*/
static void via_chan_init (struct via_info *card, struct via_channel *chan)
{
DPRINTK ("ENTER\n");
/* bzero channel structure, and init members to defaults */
via_chan_init_defaults (card, chan);
/* stop any existing channel output */
via_chan_clear (card, chan);
via_chan_status_clear (chan->iobase);
via_chan_pcm_fmt (chan, 1);
DPRINTK ("EXIT\n");
}
/**
* via_chan_buffer_init - Initialize PCM channel buffer
* @card: Private audio chip info
* @chan: Channel to be initialized
*
* Performs some of the preparations necessary to begin
* using a PCM channel.
*
* Currently the preparations include allocating the
* scatter-gather DMA table and buffers,
* and passing the
* address of the DMA table to the hardware.
*
* Note that special care is taken when passing the
* DMA table address to hardware, because it was found
* during driver development that the hardware did not
* always "take" the address.
*/
static int via_chan_buffer_init (struct via_info *card, struct via_channel *chan)
{
int page, offset;
int i;
DPRINTK ("ENTER\n");
chan->intmask = 0;
if(card->intmask)
chan->intmask = 0x23; /* Turn on the IRQ bits */
if (chan->sgtable != NULL) {
DPRINTK ("EXIT\n");
return 0;
}
/* alloc DMA-able memory for scatter-gather table */
chan->sgtable = pci_alloc_consistent (card->pdev,
(sizeof (struct via_sgd_table) * chan->frag_number),
&chan->sgt_handle);
if (!chan->sgtable) {
printk (KERN_ERR PFX "DMA table alloc fail, aborting\n");
DPRINTK ("EXIT\n");
return -ENOMEM;
}
memset ((void*)chan->sgtable, 0,
(sizeof (struct via_sgd_table) * chan->frag_number));
/* alloc DMA-able memory for scatter-gather buffers */
chan->page_number = (chan->frag_number * chan->frag_size) / PAGE_SIZE +
(((chan->frag_number * chan->frag_size) % PAGE_SIZE) ? 1 : 0);
for (i = 0; i < chan->page_number; i++) {
chan->pgtbl[i].cpuaddr = pci_alloc_consistent (card->pdev, PAGE_SIZE,
&chan->pgtbl[i].handle);
if (!chan->pgtbl[i].cpuaddr) {
chan->page_number = i;
goto err_out_nomem;
}
#ifndef VIA_NDEBUG
memset (chan->pgtbl[i].cpuaddr, 0xBC, chan->frag_size);
#endif
#if 1
DPRINTK ("dmabuf_pg #%d (h=%lx, v2p=%lx, a=%p)\n",
i, (long)chan->pgtbl[i].handle,
virt_to_phys(chan->pgtbl[i].cpuaddr),
chan->pgtbl[i].cpuaddr);
#endif
}
for (i = 0; i < chan->frag_number; i++) {
page = i / (PAGE_SIZE / chan->frag_size);
offset = (i % (PAGE_SIZE / chan->frag_size)) * chan->frag_size;
chan->sgtable[i].count = cpu_to_le32 (chan->frag_size | VIA_FLAG);
chan->sgtable[i].addr = cpu_to_le32 (chan->pgtbl[page].handle + offset);
#if 1
DPRINTK ("dmabuf #%d (32(h)=%lx)\n",
i,
(long)chan->sgtable[i].addr);
#endif
}
/* overwrite the last buffer information */
chan->sgtable[chan->frag_number - 1].count = cpu_to_le32 (chan->frag_size | VIA_EOL);
/* set location of DMA-able scatter-gather info table */
DPRINTK ("outl (0x%X, 0x%04lX)\n",
chan->sgt_handle, chan->iobase + VIA_PCM_TABLE_ADDR);
via_ac97_wait_idle (card);
outl (chan->sgt_handle, chan->iobase + VIA_PCM_TABLE_ADDR);
udelay (20);
via_ac97_wait_idle (card);
/* load no rate adaption, stereo 16bit, set up ring slots */
if(card->sixchannel)
{
if(!chan->is_multi)
{
outl (0xFFFFF | (0x3 << 20) | (chan->frag_number << 24), chan->iobase + VIA_PCM_STOPRATE);
udelay (20);
via_ac97_wait_idle (card);
}
}
DPRINTK ("inl (0x%lX) = %x\n",
chan->iobase + VIA_PCM_TABLE_ADDR,
inl(chan->iobase + VIA_PCM_TABLE_ADDR));
DPRINTK ("EXIT\n");
return 0;
err_out_nomem:
printk (KERN_ERR PFX "DMA buffer alloc fail, aborting\n");
via_chan_buffer_free (card, chan);
DPRINTK ("EXIT\n");
return -ENOMEM;
}
/**
* via_chan_free - Release a PCM channel
* @card: Private audio chip info
* @chan: Channel to be released
*
* Performs all the functions necessary to clean up
* an initialized channel.
*
* Currently these functions include disabled any
* active DMA operations, setting the PCM channel
* back to a known state, and releasing any allocated
* sound buffers.
*/
static void via_chan_free (struct via_info *card, struct via_channel *chan)
{
DPRINTK ("ENTER\n");
spin_lock_irq (&card->lock);
/* stop any existing channel output */
via_chan_status_clear (chan->iobase);
via_chan_stop (chan->iobase);
via_chan_status_clear (chan->iobase);
spin_unlock_irq (&card->lock);
synchronize_irq(card->pdev->irq);
DPRINTK ("EXIT\n");
}
static void via_chan_buffer_free (struct via_info *card, struct via_channel *chan)
{
int i;
DPRINTK ("ENTER\n");
/* zero location of DMA-able scatter-gather info table */
via_ac97_wait_idle(card);
outl (0, chan->iobase + VIA_PCM_TABLE_ADDR);
for (i = 0; i < chan->page_number; i++)
if (chan->pgtbl[i].cpuaddr) {
pci_free_consistent (card->pdev, PAGE_SIZE,
chan->pgtbl[i].cpuaddr,
chan->pgtbl[i].handle);
chan->pgtbl[i].cpuaddr = NULL;
chan->pgtbl[i].handle = 0;
}
chan->page_number = 0;
if (chan->sgtable) {
pci_free_consistent (card->pdev,
(sizeof (struct via_sgd_table) * chan->frag_number),
(void*)chan->sgtable, chan->sgt_handle);
chan->sgtable = NULL;
}
DPRINTK ("EXIT\n");
}
/**
* via_chan_pcm_fmt - Update PCM channel settings
* @chan: Channel to be updated
* @reset: Boolean. If non-zero, channel will be reset
* to 8-bit mono mode.
*
* Stores the settings of the current PCM format,
* 8-bit or 16-bit, and mono/stereo, into the
* hardware settings for the specified channel.
* If @reset is non-zero, the channel is reset
* to 8-bit mono mode. Otherwise, the channel
* is set to the values stored in the channel
* information struct @chan.
*/
static void via_chan_pcm_fmt (struct via_channel *chan, int reset)
{
DPRINTK ("ENTER, pcm_fmt=0x%02X, reset=%s\n",
chan->pcm_fmt, reset ? "yes" : "no");
assert (chan != NULL);
if (reset)
{
/* reset to 8-bit mono mode */
chan->pcm_fmt = 0;
chan->channels = 1;
}
/* enable interrupts on FLAG and EOL */
chan->pcm_fmt |= VIA_CHAN_TYPE_MASK;
/* if we are recording, enable recording fifo bit */
if (chan->is_record)
chan->pcm_fmt |= VIA_PCM_REC_FIFO;
/* set interrupt select bits where applicable (PCM in & out channels) */
if (!chan->is_record)
chan->pcm_fmt |= VIA_CHAN_TYPE_INT_SELECT;
DPRINTK("SET FMT - %02x %02x\n", chan->intmask , chan->is_multi);
if(chan->intmask)
{
u32 m;
/*
* Channel 0x4 is up to 6 x 16bit and has to be
* programmed differently
*/
if(chan->is_multi)
{
u8 c = 0;
/*
* Load the type bit for num channels
* and 8/16bit
*/
if(chan->pcm_fmt & VIA_PCM_FMT_16BIT)
c = 1 << 7;
if(chan->pcm_fmt & VIA_PCM_FMT_STEREO)
c |= (2<<4);
else
c |= (1<<4);
outb(c, chan->iobase + VIA_PCM_TYPE);
/*
* Set the channel steering
* Mono
* Channel 0 to slot 3
* Channel 0 to slot 4
* Stereo
* Channel 0 to slot 3
* Channel 1 to slot 4
*/
switch(chan->channels)
{
case 1:
outl(0xFF000000 | (1<<0) | (1<<4) , chan->iobase + VIA_PCM_STOPRATE);
break;
case 2:
outl(0xFF000000 | (1<<0) | (2<<4) , chan->iobase + VIA_PCM_STOPRATE);
break;
case 4:
outl(0xFF000000 | (1<<0) | (2<<4) | (3<<8) | (4<<12), chan->iobase + VIA_PCM_STOPRATE);
break;
case 6:
outl(0xFF000000 | (1<<0) | (2<<4) | (5<<8) | (6<<12) | (3<<16) | (4<<20), chan->iobase + VIA_PCM_STOPRATE);
break;
}
}
else
{
/*
* New style, turn off channel volume
* control, set bits in the right register
*/
outb(0x0, chan->iobase + VIA_PCM_LEFTVOL);
outb(0x0, chan->iobase + VIA_PCM_RIGHTVOL);
m = inl(chan->iobase + VIA_PCM_STOPRATE);
m &= ~(3<<20);
if(chan->pcm_fmt & VIA_PCM_FMT_STEREO)
m |= (1 << 20);
if(chan->pcm_fmt & VIA_PCM_FMT_16BIT)
m |= (1 << 21);
outl(m, chan->iobase + VIA_PCM_STOPRATE);
}
}
else
outb (chan->pcm_fmt, chan->iobase + VIA_PCM_TYPE);
DPRINTK ("EXIT, pcm_fmt = 0x%02X, reg = 0x%02X\n",
chan->pcm_fmt,
inb (chan->iobase + VIA_PCM_TYPE));
}
/**
* via_chan_clear - Stop DMA channel operation, and reset pointers
* @card: the chip to accessed
* @chan: Channel to be cleared
*
* Call via_chan_stop to halt DMA operations, and then resets
* all software pointers which track DMA operation.
*/
static void via_chan_clear (struct via_info *card, struct via_channel *chan)
{
DPRINTK ("ENTER\n");
via_chan_stop (chan->iobase);
via_chan_buffer_free(card, chan);
chan->is_active = 0;
chan->is_mapped = 0;
chan->is_enabled = 1;
chan->slop_len = 0;
chan->sw_ptr = 0;
chan->n_irqs = 0;
atomic_set (&chan->hw_ptr, 0);
DPRINTK ("EXIT\n");
}
/**
* via_chan_set_speed - Set PCM sample rate for given channel
* @card: Private info for specified board
* @chan: Channel whose sample rate will be adjusted
* @val: New sample rate, in Khz
*
* Helper function for the %SNDCTL_DSP_SPEED ioctl. OSS semantics
* demand that all audio operations halt (if they are not already
* halted) when the %SNDCTL_DSP_SPEED is given.
*
* This function halts all audio operations for the given channel
* @chan, and then calls via_set_rate to set the audio hardware
* to the new rate.
*/
static int via_chan_set_speed (struct via_info *card,
struct via_channel *chan, int val)
{
DPRINTK ("ENTER, requested rate = %d\n", val);
via_chan_clear (card, chan);
val = via_set_rate (card->ac97, chan, val);
DPRINTK ("EXIT, returning %d\n", val);
return val;
}
/**
* via_chan_set_fmt - Set PCM sample size for given channel
* @card: Private info for specified board
* @chan: Channel whose sample size will be adjusted
* @val: New sample size, use the %AFMT_xxx constants
*
* Helper function for the %SNDCTL_DSP_SETFMT ioctl. OSS semantics
* demand that all audio operations halt (if they are not already
* halted) when the %SNDCTL_DSP_SETFMT is given.
*
* This function halts all audio operations for the given channel
* @chan, and then calls via_chan_pcm_fmt to set the audio hardware
* to the new sample size, either 8-bit or 16-bit.
*/
static int via_chan_set_fmt (struct via_info *card,
struct via_channel *chan, int val)
{
DPRINTK ("ENTER, val=%s\n",
val == AFMT_U8 ? "AFMT_U8" :
val == AFMT_S16_LE ? "AFMT_S16_LE" :
"unknown");
via_chan_clear (card, chan);
assert (val != AFMT_QUERY); /* this case is handled elsewhere */
switch (val) {
case AFMT_S16_LE:
if ((chan->pcm_fmt & VIA_PCM_FMT_16BIT) == 0) {
chan->pcm_fmt |= VIA_PCM_FMT_16BIT;
via_chan_pcm_fmt (chan, 0);
}
break;
case AFMT_U8:
if (chan->pcm_fmt & VIA_PCM_FMT_16BIT) {
chan->pcm_fmt &= ~VIA_PCM_FMT_16BIT;
via_chan_pcm_fmt (chan, 0);
}
break;
default:
DPRINTK ("unknown AFMT: 0x%X\n", val);
val = AFMT_S16_LE;
}
DPRINTK ("EXIT\n");
return val;
}
/**
* via_chan_set_stereo - Enable or disable stereo for a DMA channel
* @card: Private info for specified board
* @chan: Channel whose stereo setting will be adjusted
* @val: New sample size, use the %AFMT_xxx constants
*
* Helper function for the %SNDCTL_DSP_CHANNELS and %SNDCTL_DSP_STEREO ioctls. OSS semantics
* demand that all audio operations halt (if they are not already
* halted) when %SNDCTL_DSP_CHANNELS or SNDCTL_DSP_STEREO is given.
*
* This function halts all audio operations for the given channel
* @chan, and then calls via_chan_pcm_fmt to set the audio hardware
* to enable or disable stereo.
*/
static int via_chan_set_stereo (struct via_info *card,
struct via_channel *chan, int val)
{
DPRINTK ("ENTER, channels = %d\n", val);
via_chan_clear (card, chan);
switch (val) {
/* mono */
case 1:
chan->pcm_fmt &= ~VIA_PCM_FMT_STEREO;
chan->channels = 1;
via_chan_pcm_fmt (chan, 0);
break;
/* stereo */
case 2:
chan->pcm_fmt |= VIA_PCM_FMT_STEREO;
chan->channels = 2;
via_chan_pcm_fmt (chan, 0);
break;
case 4:
case 6:
if(chan->is_multi)
{
chan->pcm_fmt |= VIA_PCM_FMT_STEREO;
chan->channels = val;
break;
}
/* unknown */
default:
val = -EINVAL;
break;
}
DPRINTK ("EXIT, returning %d\n", val);
return val;
}
static int via_chan_set_buffering (struct via_info *card,
struct via_channel *chan, int val)
{
int shift;
DPRINTK ("ENTER\n");
/* in both cases the buffer cannot be changed */
if (chan->is_active || chan->is_mapped) {
DPRINTK ("EXIT\n");
return -EINVAL;
}
/* called outside SETFRAGMENT */
/* set defaults or do nothing */
if (val < 0) {
if (chan->frag_size && chan->frag_number)
goto out;
DPRINTK ("\n");
chan->frag_size = (VIA_DEFAULT_FRAG_TIME * chan->rate * chan->channels
* ((chan->pcm_fmt & VIA_PCM_FMT_16BIT) ? 2 : 1)) / 1000 - 1;
shift = 0;
while (chan->frag_size) {
chan->frag_size >>= 1;
shift++;
}
chan->frag_size = 1 << shift;
chan->frag_number = (VIA_DEFAULT_BUFFER_TIME / VIA_DEFAULT_FRAG_TIME);
DPRINTK ("setting default values %d %d\n", chan->frag_size, chan->frag_number);
} else {
chan->frag_size = 1 << (val & 0xFFFF);
chan->frag_number = (val >> 16) & 0xFFFF;
DPRINTK ("using user values %d %d\n", chan->frag_size, chan->frag_number);
}
/* quake3 wants frag_number to be a power of two */
shift = 0;
while (chan->frag_number) {
chan->frag_number >>= 1;
shift++;
}
chan->frag_number = 1 << shift;
if (chan->frag_size > VIA_MAX_FRAG_SIZE)
chan->frag_size = VIA_MAX_FRAG_SIZE;
else if (chan->frag_size < VIA_MIN_FRAG_SIZE)
chan->frag_size = VIA_MIN_FRAG_SIZE;
if (chan->frag_number < VIA_MIN_FRAG_NUMBER)
chan->frag_number = VIA_MIN_FRAG_NUMBER;
if (chan->frag_number > VIA_MAX_FRAG_NUMBER)
chan->frag_number = VIA_MAX_FRAG_NUMBER;
if ((chan->frag_number * chan->frag_size) / PAGE_SIZE > VIA_MAX_BUFFER_DMA_PAGES)
chan->frag_number = (VIA_MAX_BUFFER_DMA_PAGES * PAGE_SIZE) / chan->frag_size;
out:
if (chan->is_record)
atomic_set (&chan->n_frags, 0);
else
atomic_set (&chan->n_frags, chan->frag_number);
DPRINTK ("EXIT\n");
return 0;
}
#ifdef VIA_CHAN_DUMP_BUFS
/**
* via_chan_dump_bufs - Display DMA table contents
* @chan: Channel whose DMA table will be displayed
*
* Debugging function which displays the contents of the
* scatter-gather DMA table for the given channel @chan.
*/
static void via_chan_dump_bufs (struct via_channel *chan)
{
int i;
for (i = 0; i < chan->frag_number; i++) {
DPRINTK ("#%02d: addr=%x, count=%u, flag=%d, eol=%d\n",
i, chan->sgtable[i].addr,
chan->sgtable[i].count & 0x00FFFFFF,
chan->sgtable[i].count & VIA_FLAG ? 1 : 0,
chan->sgtable[i].count & VIA_EOL ? 1 : 0);
}
DPRINTK ("buf_in_use = %d, nextbuf = %d\n",
atomic_read (&chan->buf_in_use),
atomic_read (&chan->sw_ptr));
}
#endif /* VIA_CHAN_DUMP_BUFS */
/**
* via_chan_flush_frag - Flush partially-full playback buffer to hardware
* @chan: Channel whose DMA table will be flushed
*
* Flushes partially-full playback buffer to hardware.
*/
static void via_chan_flush_frag (struct via_channel *chan)
{
DPRINTK ("ENTER\n");
assert (chan->slop_len > 0);
if (chan->sw_ptr == (chan->frag_number - 1))
chan->sw_ptr = 0;
else
chan->sw_ptr++;
chan->slop_len = 0;
assert (atomic_read (&chan->n_frags) > 0);
atomic_dec (&chan->n_frags);
DPRINTK ("EXIT\n");
}
/**
* via_chan_maybe_start - Initiate audio hardware DMA operation
* @chan: Channel whose DMA is to be started
*
* Initiate DMA operation, if the DMA engine for the given
* channel @chan is not already active.
*/
static inline void via_chan_maybe_start (struct via_channel *chan)
{
assert (chan->is_active == sg_active(chan->iobase));
DPRINTK ("MAYBE START %s\n", chan->name);
if (!chan->is_active && chan->is_enabled) {
chan->is_active = 1;
sg_begin (chan);
DPRINTK ("starting channel %s\n", chan->name);
}
}
/****************************************************************
*
* Interface to ac97-codec module
*
*
*/
/**
* via_ac97_wait_idle - Wait until AC97 codec is not busy
* @card: Private info for specified board
*
* Sleep until the AC97 codec is no longer busy.
* Returns the final value read from the SGD
* register being polled.
*/
static u8 via_ac97_wait_idle (struct via_info *card)
{
u8 tmp8;
int counter = VIA_COUNTER_LIMIT;
DPRINTK ("ENTER/EXIT\n");
assert (card != NULL);
assert (card->pdev != NULL);
do {
udelay (15);
tmp8 = inb (card->baseaddr + 0x83);
} while ((tmp8 & VIA_CR83_BUSY) && (counter-- > 0));
if (tmp8 & VIA_CR83_BUSY)
printk (KERN_WARNING PFX "timeout waiting on AC97 codec\n");
return tmp8;
}
/**
* via_ac97_read_reg - Read AC97 standard register
* @codec: Pointer to generic AC97 codec info
* @reg: Index of AC97 register to be read
*
* Read the value of a single AC97 codec register,
* as defined by the Intel AC97 specification.
*
* Defines the standard AC97 read-register operation
* required by the kernel's ac97_codec interface.
*
* Returns the 16-bit value stored in the specified
* register.
*/
static u16 via_ac97_read_reg (struct ac97_codec *codec, u8 reg)
{
unsigned long data;
struct via_info *card;
int counter;
DPRINTK ("ENTER\n");
assert (codec != NULL);
assert (codec->private_data != NULL);
card = codec->private_data;
spin_lock(&card->ac97_lock);
/* Every time we write to register 80 we cause a transaction.
The only safe way to clear the valid bit is to write it at
the same time as the command */
data = (reg << 16) | VIA_CR80_READ | VIA_CR80_VALID;
outl (data, card->baseaddr + VIA_BASE0_AC97_CTRL);
udelay (20);
for (counter = VIA_COUNTER_LIMIT; counter > 0; counter--) {
udelay (1);
if ((((data = inl(card->baseaddr + VIA_BASE0_AC97_CTRL)) &
(VIA_CR80_VALID|VIA_CR80_BUSY)) == VIA_CR80_VALID))
goto out;
}
printk (KERN_WARNING PFX "timeout while reading AC97 codec (0x%lX)\n", data);
goto err_out;
out:
/* Once the valid bit has become set, we must wait a complete AC97
frame before the data has settled. */
udelay(25);
data = (unsigned long) inl (card->baseaddr + VIA_BASE0_AC97_CTRL);
outb (0x02, card->baseaddr + 0x83);
if (((data & 0x007F0000) >> 16) == reg) {
DPRINTK ("EXIT, success, data=0x%lx, retval=0x%lx\n",
data, data & 0x0000FFFF);
spin_unlock(&card->ac97_lock);
return data & 0x0000FFFF;
}
printk (KERN_WARNING "via82cxxx_audio: not our index: reg=0x%x, newreg=0x%lx\n",
reg, ((data & 0x007F0000) >> 16));
err_out:
spin_unlock(&card->ac97_lock);
DPRINTK ("EXIT, returning 0\n");
return 0;
}
/**
* via_ac97_write_reg - Write AC97 standard register
* @codec: Pointer to generic AC97 codec info
* @reg: Index of AC97 register to be written
* @value: Value to be written to AC97 register
*
* Write the value of a single AC97 codec register,
* as defined by the Intel AC97 specification.
*
* Defines the standard AC97 write-register operation
* required by the kernel's ac97_codec interface.
*/
static void via_ac97_write_reg (struct ac97_codec *codec, u8 reg, u16 value)
{
u32 data;
struct via_info *card;
int counter;
DPRINTK ("ENTER\n");
assert (codec != NULL);
assert (codec->private_data != NULL);
card = codec->private_data;
spin_lock(&card->ac97_lock);
data = (reg << 16) + value;
outl (data, card->baseaddr + VIA_BASE0_AC97_CTRL);
udelay (10);
for (counter = VIA_COUNTER_LIMIT; counter > 0; counter--) {
if ((inb (card->baseaddr + 0x83) & VIA_CR83_BUSY) == 0)
goto out;
udelay (15);
}
printk (KERN_WARNING PFX "timeout after AC97 codec write (0x%X, 0x%X)\n", reg, value);
out:
spin_unlock(&card->ac97_lock);
DPRINTK ("EXIT\n");
}
static int via_mixer_open (struct inode *inode, struct file *file)
{
int minor = iminor(inode);
struct via_info *card;
struct pci_dev *pdev = NULL;
struct pci_driver *drvr;
DPRINTK ("ENTER\n");
while ((pdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) {
drvr = pci_dev_driver (pdev);
if (drvr == &via_driver) {
assert (pci_get_drvdata (pdev) != NULL);
card = pci_get_drvdata (pdev);
if (card->ac97->dev_mixer == minor)
goto match;
}
}
DPRINTK ("EXIT, returning -ENODEV\n");
return -ENODEV;
match:
pci_dev_put(pdev);
file->private_data = card->ac97;
DPRINTK ("EXIT, returning 0\n");
return nonseekable_open(inode, file);
}
static int via_mixer_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg)
{
struct ac97_codec *codec = file->private_data;
struct via_info *card;
int nonblock = (file->f_flags & O_NONBLOCK);
int rc;
DPRINTK ("ENTER\n");
assert (codec != NULL);
card = codec->private_data;
assert (card != NULL);
rc = via_syscall_down (card, nonblock);
if (rc) goto out;
#if 0
/*
* Intercept volume control on 8233 and 8235
*/
if(card->volume)
{
switch(cmd)
{
case SOUND_MIXER_READ_VOLUME:
return card->mixer_vol;
case SOUND_MIXER_WRITE_VOLUME:
{
int v;
if(get_user(v, (int *)arg))
{
rc = -EFAULT;
goto out;
}
card->mixer_vol = v;
}
}
}
#endif
rc = codec->mixer_ioctl(codec, cmd, arg);
mutex_unlock(&card->syscall_mutex);
out:
DPRINTK ("EXIT, returning %d\n", rc);
return rc;
}
static const struct file_operations via_mixer_fops = {
.owner = THIS_MODULE,
.open = via_mixer_open,
.llseek = no_llseek,
.ioctl = via_mixer_ioctl,
};
static int __devinit via_ac97_reset (struct via_info *card)
{
struct pci_dev *pdev = card->pdev;
u8 tmp8;
u16 tmp16;
DPRINTK ("ENTER\n");
assert (pdev != NULL);
#ifndef NDEBUG
{
u8 r40,r41,r42,r43,r44,r48;
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, 0x43, &r43);
pci_read_config_byte (card->pdev, 0x44, &r44);
pci_read_config_byte (card->pdev, 0x48, &r48);
DPRINTK ("PCI config: %02X %02X %02X %02X %02X %02X\n",
r40,r41,r42,r43,r44,r48);
spin_lock_irq (&card->lock);
DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n",
inb (card->baseaddr + 0x00),
inb (card->baseaddr + 0x01),
inb (card->baseaddr + 0x02),
inl (card->baseaddr + 0x04),
inl (card->baseaddr + 0x0C),
inl (card->baseaddr + 0x80),
inl (card->baseaddr + 0x84));
spin_unlock_irq (&card->lock);
}
#endif
/*
* Reset AC97 controller: enable, disable, enable,
* pausing after each command for good luck. Only
* do this if the codec is not ready, because it causes
* loud pops and such due to such a hard codec reset.
*/
pci_read_config_byte (pdev, VIA_ACLINK_STATUS, &tmp8);
if ((tmp8 & VIA_CR40_AC97_READY) == 0) {
pci_write_config_byte (pdev, VIA_ACLINK_CTRL,
VIA_CR41_AC97_ENABLE |
VIA_CR41_AC97_RESET |
VIA_CR41_AC97_WAKEUP);
udelay (100);
pci_write_config_byte (pdev, VIA_ACLINK_CTRL, 0);
udelay (100);
pci_write_config_byte (pdev, VIA_ACLINK_CTRL,
VIA_CR41_AC97_ENABLE |
VIA_CR41_PCM_ENABLE |
VIA_CR41_VRA | VIA_CR41_AC97_RESET);
udelay (100);
}
/* Make sure VRA is enabled, in case we didn't do a
* complete codec reset, above
*/
pci_read_config_byte (pdev, VIA_ACLINK_CTRL, &tmp8);
if (((tmp8 & VIA_CR41_VRA) == 0) ||
((tmp8 & VIA_CR41_AC97_ENABLE) == 0) ||
((tmp8 & VIA_CR41_PCM_ENABLE) == 0) ||
((tmp8 & VIA_CR41_AC97_RESET) == 0)) {
pci_write_config_byte (pdev, VIA_ACLINK_CTRL,
VIA_CR41_AC97_ENABLE |
VIA_CR41_PCM_ENABLE |
VIA_CR41_VRA | VIA_CR41_AC97_RESET);
udelay (100);
}
if(card->legacy)
{
#if 0 /* this breaks on K7M */
/* disable legacy stuff */
pci_write_config_byte (pdev, 0x42, 0x00);
udelay(10);
#endif
/* route FM trap to IRQ, disable FM trap */
pci_write_config_byte (pdev, 0x48, 0x05);
udelay(10);
}
/* disable all codec GPI interrupts */
outl (0, pci_resource_start (pdev, 0) + 0x8C);
/* WARNING: this line is magic. Remove this
* and things break. */
/* enable variable rate */
tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS);
if ((tmp16 & 1) == 0)
via_ac97_write_reg (card->ac97, AC97_EXTENDED_STATUS, tmp16 | 1);
DPRINTK ("EXIT, returning 0\n");
return 0;
}
static void via_ac97_codec_wait (struct ac97_codec *codec)
{
assert (codec->private_data != NULL);
via_ac97_wait_idle (codec->private_data);
}
static int __devinit via_ac97_init (struct via_info *card)
{
int rc;
u16 tmp16;
DPRINTK ("ENTER\n");
assert (card != NULL);
card->ac97 = ac97_alloc_codec();
if(card->ac97 == NULL)
return -ENOMEM;
card->ac97->private_data = card;
card->ac97->codec_read = via_ac97_read_reg;
card->ac97->codec_write = via_ac97_write_reg;
card->ac97->codec_wait = via_ac97_codec_wait;
card->ac97->dev_mixer = register_sound_mixer (&via_mixer_fops, -1);
if (card->ac97->dev_mixer < 0) {
printk (KERN_ERR PFX "unable to register AC97 mixer, aborting\n");
DPRINTK ("EXIT, returning -EIO\n");
ac97_release_codec(card->ac97);
return -EIO;
}
rc = via_ac97_reset (card);
if (rc) {
printk (KERN_ERR PFX "unable to reset AC97 codec, aborting\n");
goto err_out;
}
mdelay(10);
if (ac97_probe_codec (card->ac97) == 0) {
printk (KERN_ERR PFX "unable to probe AC97 codec, aborting\n");
rc = -EIO;
goto err_out;
}
/* enable variable rate */
tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS);
via_ac97_write_reg (card->ac97, AC97_EXTENDED_STATUS, tmp16 | 1);
/*
* If we cannot enable VRA, we have a locked-rate codec.
* We try again to enable VRA before assuming so, however.
*/
tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS);
if ((tmp16 & 1) == 0) {
via_ac97_write_reg (card->ac97, AC97_EXTENDED_STATUS, tmp16 | 1);
tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS);
if ((tmp16 & 1) == 0) {
card->locked_rate = 1;
printk (KERN_WARNING PFX "Codec rate locked at 48Khz\n");
}
}
DPRINTK ("EXIT, returning 0\n");
return 0;
err_out:
unregister_sound_mixer (card->ac97->dev_mixer);
DPRINTK ("EXIT, returning %d\n", rc);
ac97_release_codec(card->ac97);
return rc;
}
static void via_ac97_cleanup (struct via_info *card)
{
DPRINTK ("ENTER\n");
assert (card != NULL);
assert (card->ac97->dev_mixer >= 0);
unregister_sound_mixer (card->ac97->dev_mixer);
ac97_release_codec(card->ac97);
DPRINTK ("EXIT\n");
}
/****************************************************************
*
* Interrupt-related code
*
*/
/**
* via_intr_channel - handle an interrupt for a single channel
* @card: unused
* @chan: handle interrupt for this channel
*
* This is the "meat" of the interrupt handler,
* containing the actions taken each time an interrupt
* occurs. All communication and coordination with
* userspace takes place here.
*
* Locking: inside card->lock
*/
static void via_intr_channel (struct via_info *card, struct via_channel *chan)
{
u8 status;
int n;
/* check pertinent bits of status register for action bits */
status = inb (chan->iobase) & (VIA_SGD_FLAG | VIA_SGD_EOL | VIA_SGD_STOPPED);
if (!status)
return;
/* acknowledge any flagged bits ASAP */
outb (status, chan->iobase);
if (!chan->sgtable) /* XXX: temporary solution */
return;
/* grab current h/w ptr value */
n = atomic_read (&chan->hw_ptr);
/* sanity check: make sure our h/w ptr doesn't have a weird value */
assert (n >= 0);
assert (n < chan->frag_number);
/* reset SGD data structure in memory to reflect a full buffer,
* and advance the h/w ptr, wrapping around to zero if needed
*/
if (n == (chan->frag_number - 1)) {
chan->sgtable[n].count = cpu_to_le32(chan->frag_size | VIA_EOL);
atomic_set (&chan->hw_ptr, 0);
} else {
chan->sgtable[n].count = cpu_to_le32(chan->frag_size | VIA_FLAG);
atomic_inc (&chan->hw_ptr);
}
/* accounting crap for SNDCTL_DSP_GETxPTR */
chan->n_irqs++;
chan->bytes += chan->frag_size;
/* FIXME - signed overflow is undefined */
if (chan->bytes < 0) /* handle overflow of 31-bit value */
chan->bytes = chan->frag_size;
/* all following checks only occur when not in mmap(2) mode */
if (!chan->is_mapped)
{
/* If we are recording, then n_frags represents the number
* of fragments waiting to be handled by userspace.
* If we are playback, then n_frags represents the number
* of fragments remaining to be filled by userspace.
* We increment here. If we reach max number of fragments,
* this indicates an underrun/overrun. For this case under OSS,
* we stop the record/playback process.
*/
if (atomic_read (&chan->n_frags) < chan->frag_number)
atomic_inc (&chan->n_frags);
assert (atomic_read (&chan->n_frags) <= chan->frag_number);
if (atomic_read (&chan->n_frags) == chan->frag_number) {
chan->is_active = 0;
via_chan_stop (chan->iobase);
}
}
/* wake up anyone listening to see when interrupts occur */
wake_up_all (&chan->wait);
DPRINTK ("%s intr, status=0x%02X, hwptr=0x%lX, chan->hw_ptr=%d\n",
chan->name, status, (long) inl (chan->iobase + 0x04),
atomic_read (&chan->hw_ptr));
DPRINTK ("%s intr, channel n_frags == %d, missed %d\n", chan->name,
atomic_read (&chan->n_frags), missed);
}
static irqreturn_t via_interrupt(int irq, void *dev_id)
{
struct via_info *card = dev_id;
u32 status32;
/* to minimize interrupt sharing costs, we use the SGD status
* shadow register to check the status of all inputs and
* outputs with a single 32-bit bus read. If no interrupt
* conditions are flagged, we exit immediately
*/
status32 = inl (card->baseaddr + VIA_BASE0_SGD_STATUS_SHADOW);
if (!(status32 & VIA_INTR_MASK))
{
#ifdef CONFIG_MIDI_VIA82CXXX
if (card->midi_devc)
uart401intr(irq, card->midi_devc);
#endif
return IRQ_HANDLED;
}
DPRINTK ("intr, status32 == 0x%08X\n", status32);
/* synchronize interrupt handling under SMP. this spinlock
* goes away completely on UP
*/
spin_lock (&card->lock);
if (status32 & VIA_INTR_OUT)
via_intr_channel (card, &card->ch_out);
if (status32 & VIA_INTR_IN)
via_intr_channel (card, &card->ch_in);
if (status32 & VIA_INTR_FM)
via_intr_channel (card, &card->ch_fm);
spin_unlock (&card->lock);
return IRQ_HANDLED;
}
static irqreturn_t via_new_interrupt(int irq, void *dev_id)
{
struct via_info *card = dev_id;
u32 status32;
/* to minimize interrupt sharing costs, we use the SGD status
* shadow register to check the status of all inputs and
* outputs with a single 32-bit bus read. If no interrupt
* conditions are flagged, we exit immediately
*/
status32 = inl (card->baseaddr + VIA_BASE0_SGD_STATUS_SHADOW);
if (!(status32 & VIA_NEW_INTR_MASK))
return IRQ_NONE;
/*
* goes away completely on UP
*/
spin_lock (&card->lock);
via_intr_channel (card, &card->ch_out);
via_intr_channel (card, &card->ch_in);
via_intr_channel (card, &card->ch_fm);
spin_unlock (&card->lock);
return IRQ_HANDLED;
}
/**
* via_interrupt_init - Initialize interrupt handling
* @card: Private info for specified board
*
* Obtain and reserve IRQ for using in handling audio events.
* Also, disable any IRQ-generating resources, to make sure
* we don't get interrupts before we want them.
*/
static int via_interrupt_init (struct via_info *card)
{
u8 tmp8;
DPRINTK ("ENTER\n");
assert (card != NULL);
assert (card->pdev != NULL);
/* check for sane IRQ number. can this ever happen? */
if (card->pdev->irq < 2) {
printk (KERN_ERR PFX "insane IRQ %d, aborting\n",
card->pdev->irq);
DPRINTK ("EXIT, returning -EIO\n");
return -EIO;
}
/* VIA requires this is done */
pci_write_config_byte(card->pdev, PCI_INTERRUPT_LINE, card->pdev->irq);
if(card->legacy)
{
/* make sure FM irq is not routed to us */
pci_read_config_byte (card->pdev, VIA_FM_NMI_CTRL, &tmp8);
if ((tmp8 & VIA_CR48_FM_TRAP_TO_NMI) == 0) {
tmp8 |= VIA_CR48_FM_TRAP_TO_NMI;
pci_write_config_byte (card->pdev, VIA_FM_NMI_CTRL, tmp8);
}
if (request_irq (card->pdev->irq, via_interrupt, IRQF_SHARED, VIA_MODULE_NAME, card)) {
printk (KERN_ERR PFX "unable to obtain IRQ %d, aborting\n",
card->pdev->irq);
DPRINTK ("EXIT, returning -EBUSY\n");
return -EBUSY;
}
}
else
{
if (request_irq (card->pdev->irq, via_new_interrupt, IRQF_SHARED, VIA_MODULE_NAME, card)) {
printk (KERN_ERR PFX "unable to obtain IRQ %d, aborting\n",
card->pdev->irq);
DPRINTK ("EXIT, returning -EBUSY\n");
return -EBUSY;
}
}
DPRINTK ("EXIT, returning 0\n");
return 0;
}
/****************************************************************
*
* OSS DSP device
*
*/
static const struct file_operations via_dsp_fops = {
.owner = THIS_MODULE,
.open = via_dsp_open,
.release = via_dsp_release,
.read = via_dsp_read,
.write = via_dsp_write,
.poll = via_dsp_poll,
.llseek = no_llseek,
.ioctl = via_dsp_ioctl,
.mmap = via_dsp_mmap,
};
static int __devinit via_dsp_init (struct via_info *card)
{
u8 tmp8;
DPRINTK ("ENTER\n");
assert (card != NULL);
if(card->legacy)
{
/* turn off legacy features, if not already */
pci_read_config_byte (card->pdev, VIA_FUNC_ENABLE, &tmp8);
if (tmp8 & (VIA_CR42_SB_ENABLE | VIA_CR42_FM_ENABLE)) {
tmp8 &= ~(VIA_CR42_SB_ENABLE | VIA_CR42_FM_ENABLE);
pci_write_config_byte (card->pdev, VIA_FUNC_ENABLE, tmp8);
}
}
via_stop_everything (card);
card->dev_dsp = register_sound_dsp (&via_dsp_fops, -1);
if (card->dev_dsp < 0) {
DPRINTK ("EXIT, returning -ENODEV\n");
return -ENODEV;
}
DPRINTK ("EXIT, returning 0\n");
return 0;
}
static void via_dsp_cleanup (struct via_info *card)
{
DPRINTK ("ENTER\n");
assert (card != NULL);
assert (card->dev_dsp >= 0);
via_stop_everything (card);
unregister_sound_dsp (card->dev_dsp);
DPRINTK ("EXIT\n");
}
static struct page * via_mm_nopage (struct vm_area_struct * vma,
unsigned long address, int *type)
{
struct via_info *card = vma->vm_private_data;
struct via_channel *chan = &card->ch_out;
unsigned long max_bufs;
struct page *dmapage;
unsigned long pgoff;
int rd, wr;
DPRINTK ("ENTER, start %lXh, ofs %lXh, pgoff %ld, addr %lXh\n",
vma->vm_start,
address - vma->vm_start,
(address - vma->vm_start) >> PAGE_SHIFT,
address);
if (address > vma->vm_end) {
DPRINTK ("EXIT, returning NOPAGE_SIGBUS\n");
return NOPAGE_SIGBUS; /* Disallow mremap */
}
if (!card) {
DPRINTK ("EXIT, returning NOPAGE_SIGBUS\n");
return NOPAGE_SIGBUS; /* Nothing allocated */
}
pgoff = vma->vm_pgoff + ((address - vma->vm_start) >> PAGE_SHIFT);
rd = card->ch_in.is_mapped;
wr = card->ch_out.is_mapped;
max_bufs = chan->frag_number;
if (rd && wr)
max_bufs *= 2;
if (pgoff >= max_bufs)
return NOPAGE_SIGBUS;
/* if full-duplex (read+write) and we have two sets of bufs,
* then the playback buffers come first, sez soundcard.c */
if (pgoff >= chan->page_number) {
pgoff -= chan->page_number;
chan = &card->ch_in;
} else if (!wr)
chan = &card->ch_in;
assert ((((unsigned long)chan->pgtbl[pgoff].cpuaddr) % PAGE_SIZE) == 0);
dmapage = virt_to_page (chan->pgtbl[pgoff].cpuaddr);
DPRINTK ("EXIT, returning page %p for cpuaddr %lXh\n",
dmapage, (unsigned long) chan->pgtbl[pgoff].cpuaddr);
get_page (dmapage);
if (type)
*type = VM_FAULT_MINOR;
return dmapage;
}
#ifndef VM_RESERVED
static int via_mm_swapout (struct page *page, struct file *filp)
{
return 0;
}
#endif /* VM_RESERVED */
static struct vm_operations_struct via_mm_ops = {
.nopage = via_mm_nopage,
#ifndef VM_RESERVED
.swapout = via_mm_swapout,
#endif
};
static int via_dsp_mmap(struct file *file, struct vm_area_struct *vma)
{
struct via_info *card;
int nonblock = (file->f_flags & O_NONBLOCK);
int rc = -EINVAL, rd=0, wr=0;
unsigned long max_size, size, start, offset;
assert (file != NULL);
assert (vma != NULL);
card = file->private_data;
assert (card != NULL);
DPRINTK ("ENTER, start %lXh, size %ld, pgoff %ld\n",
vma->vm_start,
vma->vm_end - vma->vm_start,
vma->vm_pgoff);
max_size = 0;
if (vma->vm_flags & VM_READ) {
rd = 1;
via_chan_set_buffering(card, &card->ch_in, -1);
via_chan_buffer_init (card, &card->ch_in);
max_size += card->ch_in.page_number << PAGE_SHIFT;
}
if (vma->vm_flags & VM_WRITE) {
wr = 1;
via_chan_set_buffering(card, &card->ch_out, -1);
via_chan_buffer_init (card, &card->ch_out);
max_size += card->ch_out.page_number << PAGE_SHIFT;
}
start = vma->vm_start;
offset = (vma->vm_pgoff << PAGE_SHIFT);
size = vma->vm_end - vma->vm_start;
/* some basic size/offset sanity checks */
if (size > max_size)
goto out;
if (offset > max_size - size)
goto out;
rc = via_syscall_down (card, nonblock);
if (rc) goto out;
vma->vm_ops = &via_mm_ops;
vma->vm_private_data = card;
#ifdef VM_RESERVED
vma->vm_flags |= VM_RESERVED;
#endif
if (rd)
card->ch_in.is_mapped = 1;
if (wr)
card->ch_out.is_mapped = 1;
mutex_unlock(&card->syscall_mutex);
rc = 0;
out:
DPRINTK ("EXIT, returning %d\n", rc);
return rc;
}
static ssize_t via_dsp_do_read (struct via_info *card,
char __user *userbuf, size_t count,
int nonblock)
{
DECLARE_WAITQUEUE(wait, current);
const char __user *orig_userbuf = userbuf;
struct via_channel *chan = &card->ch_in;
size_t size;
int n, tmp;
ssize_t ret = 0;
/* if SGD has not yet been started, start it */
via_chan_maybe_start (chan);
handle_one_block:
/* just to be a nice neighbor */
/* Thomas Sailer:
* But also to ourselves, release semaphore if we do so */
if (need_resched()) {
mutex_unlock(&card->syscall_mutex);
schedule ();
ret = via_syscall_down (card, nonblock);
if (ret)
goto out;
}
/* grab current channel software pointer. In the case of
* recording, this is pointing to the next buffer that
* will receive data from the audio hardware.
*/
n = chan->sw_ptr;
/* n_frags represents the number of fragments waiting
* to be copied to userland. sleep until at least
* one buffer has been read from the audio hardware.
*/
add_wait_queue(&chan->wait, &wait);
for (;;) {
__set_current_state(TASK_INTERRUPTIBLE);
tmp = atomic_read (&chan->n_frags);
assert (tmp >= 0);
assert (tmp <= chan->frag_number);
if (tmp)
break;
if (nonblock || !chan->is_active) {
ret = -EAGAIN;
break;
}
mutex_unlock(&card->syscall_mutex);
DPRINTK ("Sleeping on block %d\n", n);
schedule();
ret = via_syscall_down (card, nonblock);
if (ret)
break;
if (signal_pending (current)) {
ret = -ERESTARTSYS;
break;
}
}
set_current_state(TASK_RUNNING);
remove_wait_queue(&chan->wait, &wait);
if (ret)
goto out;
/* Now that we have a buffer we can read from, send
* as much as sample data possible to userspace.
*/
while ((count > 0) && (chan->slop_len < chan->frag_size)) {
size_t slop_left = chan->frag_size - chan->slop_len;
void *base = chan->pgtbl[n / (PAGE_SIZE / chan->frag_size)].cpuaddr;
unsigned ofs = (n % (PAGE_SIZE / chan->frag_size)) * chan->frag_size;
size = (count < slop_left) ? count : slop_left;
if (copy_to_user (userbuf,
base + ofs + chan->slop_len,
size)) {
ret = -EFAULT;
goto out;
}
count -= size;
chan->slop_len += size;
userbuf += size;
}
/* If we didn't copy the buffer completely to userspace,
* stop now.
*/
if (chan->slop_len < chan->frag_size)
goto out;
/*
* If we get to this point, we copied one buffer completely
* to userspace, give the buffer back to the hardware.
*/
/* advance channel software pointer to point to
* the next buffer from which we will copy
*/
if (chan->sw_ptr == (chan->frag_number - 1))
chan->sw_ptr = 0;
else
chan->sw_ptr++;
/* mark one less buffer waiting to be processed */
assert (atomic_read (&chan->n_frags) > 0);
atomic_dec (&chan->n_frags);
/* we are at a block boundary, there is no fragment data */
chan->slop_len = 0;
DPRINTK ("Flushed block %u, sw_ptr now %u, n_frags now %d\n",
n, chan->sw_ptr, atomic_read (&chan->n_frags));
DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n",
inb (card->baseaddr + 0x00),
inb (card->baseaddr + 0x01),
inb (card->baseaddr + 0x02),
inl (card->baseaddr + 0x04),
inl (card->baseaddr + 0x0C),
inl (card->baseaddr + 0x80),
inl (card->baseaddr + 0x84));
if (count > 0)
goto handle_one_block;
out:
return (userbuf != orig_userbuf) ? (userbuf - orig_userbuf) : ret;
}
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);
int rc;
DPRINTK ("ENTER, file=%p, buffer=%p, count=%u, ppos=%lu\n",
file, buffer, count, ppos ? ((unsigned long)*ppos) : 0);
assert (file != NULL);
card = file->private_data;
assert (card != NULL);
rc = via_syscall_down (card, nonblock);
if (rc) goto out;
if (card->ch_in.is_mapped) {
rc = -ENXIO;
goto out_up;
}
via_chan_set_buffering(card, &card->ch_in, -1);
rc = via_chan_buffer_init (card, &card->ch_in);
if (rc)
goto out_up;
rc = via_dsp_do_read (card, buffer, count, nonblock);
out_up:
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 __user *userbuf, size_t count,
int nonblock)
{
DECLARE_WAITQUEUE(wait, current);
const char __user *orig_userbuf = userbuf;
struct via_channel *chan = &card->ch_out;
volatile struct via_sgd_table *sgtable = chan->sgtable;
size_t size;
int n, tmp;
ssize_t ret = 0;
handle_one_block:
/* just to be a nice neighbor */
/* Thomas Sailer:
* But also to ourselves, release semaphore if we do so */
if (need_resched()) {
mutex_unlock(&card->syscall_mutex);
schedule ();
ret = via_syscall_down (card, nonblock);
if (ret)
goto out;
}
/* grab current channel fragment pointer. In the case of
* playback, this is pointing to the next fragment that
* should receive data from userland.
*/
n = chan->sw_ptr;
/* n_frags represents the number of fragments remaining
* to be filled by userspace. Sleep until
* at least one fragment is available for our use.
*/
add_wait_queue(&chan->wait, &wait);
for (;;) {
__set_current_state(TASK_INTERRUPTIBLE);
tmp = atomic_read (&chan->n_frags);
assert (tmp >= 0);
assert (tmp <= chan->frag_number);
if (tmp)
break;
if (nonblock || !chan->is_active) {
ret = -EAGAIN;
break;
}
mutex_unlock(&card->syscall_mutex);
DPRINTK ("Sleeping on page %d, tmp==%d, ir==%d\n", n, tmp, chan->is_record);
schedule();
ret = via_syscall_down (card, nonblock);
if (ret)
break;
if (signal_pending (current)) {
ret = -ERESTARTSYS;
break;
}
}
set_current_state(TASK_RUNNING);
remove_wait_queue(&chan->wait, &wait);
if (ret)
goto out;
/* Now that we have at least one fragment we can write to, fill the buffer
* as much as possible with data from userspace.
*/
while ((count > 0) && (chan->slop_len < chan->frag_size)) {
size_t slop_left = chan->frag_size - chan->slop_len;
size = (count < slop_left) ? count : slop_left;
if (copy_from_user (chan->pgtbl[n / (PAGE_SIZE / chan->frag_size)].cpuaddr + (n % (PAGE_SIZE / chan->frag_size)) * chan->frag_size + chan->slop_len,
userbuf, size)) {
ret = -EFAULT;
goto out;
}
count -= size;
chan->slop_len += size;
userbuf += size;
}
/* If we didn't fill up the buffer with data, stop now.
* Put a 'stop' marker in the DMA table too, to tell the
* audio hardware to stop if it gets here.
*/
if (chan->slop_len < chan->frag_size) {
sgtable[n].count = cpu_to_le32 (chan->slop_len | VIA_EOL | VIA_STOP);
goto out;
}
/*
* If we get to this point, we have filled a buffer with
* audio data, flush the buffer to audio hardware.
*/
/* Record the true size for the audio hardware to notice */
if (n == (chan->frag_number - 1))
sgtable[n].count = cpu_to_le32 (chan->frag_size | VIA_EOL);
else
sgtable[n].count = cpu_to_le32 (chan->frag_size | VIA_FLAG);
/* advance channel software pointer to point to
* the next buffer we will fill with data
*/
if (chan->sw_ptr == (chan->frag_number - 1))
chan->sw_ptr = 0;
else
chan->sw_ptr++;
/* mark one less buffer as being available for userspace consumption */
assert (atomic_read (&chan->n_frags) > 0);
atomic_dec (&chan->n_frags);
/* we are at a block boundary, there is no fragment data */
chan->slop_len = 0;
/* if SGD has not yet been started, start it */
via_chan_maybe_start (chan);
DPRINTK ("Flushed block %u, sw_ptr now %u, n_frags now %d\n",
n, chan->sw_ptr, atomic_read (&chan->n_frags));
DPRINTK ("regs==S=%02X C=%02X TP=%02X BP=%08X RT=%08X SG=%08X CC=%08X SS=%08X\n",
inb (card->baseaddr + 0x00),
inb (card->baseaddr + 0x01),
inb (card->baseaddr + 0x02),
inl (card->baseaddr + 0x04),
inl (card->baseaddr + 0x08),
inl (card->baseaddr + 0x0C),
inl (card->baseaddr + 0x80),
inl (card->baseaddr + 0x84));
if (count > 0)
goto handle_one_block;
out:
if (userbuf - orig_userbuf)
return userbuf - orig_userbuf;
else
return ret;
}
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;
int nonblock = (file->f_flags & O_NONBLOCK);
DPRINTK ("ENTER, file=%p, buffer=%p, count=%u, ppos=%lu\n",
file, buffer, count, ppos ? ((unsigned long)*ppos) : 0);
assert (file != NULL);
card = file->private_data;
assert (card != NULL);
rc = via_syscall_down (card, nonblock);
if (rc) goto out;
if (card->ch_out.is_mapped) {
rc = -ENXIO;
goto out_up;
}
via_chan_set_buffering(card, &card->ch_out, -1);
rc = via_chan_buffer_init (card, &card->ch_out);
if (rc)
goto out_up;
rc = via_dsp_do_write (card, buffer, count, nonblock);
out_up:
mutex_unlock(&card->syscall_mutex);
out:
DPRINTK ("EXIT, returning %ld\n",(long) rc);
return rc;
}
static unsigned int via_dsp_poll(struct file *file, struct poll_table_struct *wait)
{
struct via_info *card;
struct via_channel *chan;
unsigned int mask = 0;
DPRINTK ("ENTER\n");
assert (file != NULL);
card = file->private_data;
assert (card != NULL);
if (file->f_mode & FMODE_READ) {
chan = &card->ch_in;
if (sg_active (chan->iobase))
poll_wait(file, &chan->wait, wait);
if (atomic_read (&chan->n_frags) > 0)
mask |= POLLIN | POLLRDNORM;
}
if (file->f_mode & FMODE_WRITE) {
chan = &card->ch_out;
if (sg_active (chan->iobase))
poll_wait(file, &chan->wait, wait);
if (atomic_read (&chan->n_frags) > 0)
mask |= POLLOUT | POLLWRNORM;
}
DPRINTK ("EXIT, returning %u\n", mask);
return mask;
}
/**
* via_dsp_drain_playback - sleep until all playback samples are flushed
* @card: Private info for specified board
* @chan: Channel to drain
* @nonblock: boolean, non-zero if O_NONBLOCK is set
*
* Sleeps until all playback has been flushed to the audio
* hardware.
*
* Locking: inside card->syscall_mutex
*/
static int via_dsp_drain_playback (struct via_info *card,
struct via_channel *chan, int nonblock)
{
DECLARE_WAITQUEUE(wait, current);
int ret = 0;
DPRINTK ("ENTER, nonblock = %d\n", nonblock);
if (chan->slop_len > 0)
via_chan_flush_frag (chan);
if (atomic_read (&chan->n_frags) == chan->frag_number)
goto out;
via_chan_maybe_start (chan);
add_wait_queue(&chan->wait, &wait);
for (;;) {
DPRINTK ("FRAGS %d FRAGNUM %d\n", atomic_read(&chan->n_frags), chan->frag_number);
__set_current_state(TASK_INTERRUPTIBLE);
if (atomic_read (&chan->n_frags) >= chan->frag_number)
break;
if (nonblock) {
DPRINTK ("EXIT, returning -EAGAIN\n");
ret = -EAGAIN;
break;
}
#ifdef VIA_DEBUG
{
u8 r40,r41,r42,r43,r44,r48;
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, 0x43, &r43);
pci_read_config_byte (card->pdev, 0x44, &r44);
pci_read_config_byte (card->pdev, 0x48, &r48);
DPRINTK ("PCI config: %02X %02X %02X %02X %02X %02X\n",
r40,r41,r42,r43,r44,r48);
DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n",
inb (card->baseaddr + 0x00),
inb (card->baseaddr + 0x01),
inb (card->baseaddr + 0x02),
inl (card->baseaddr + 0x04),
inl (card->baseaddr + 0x0C),
inl (card->baseaddr + 0x80),
inl (card->baseaddr + 0x84));
}
if (!chan->is_active)
printk (KERN_ERR "sleeping but not active\n");
#endif
mutex_unlock(&card->syscall_mutex);
DPRINTK ("sleeping, nbufs=%d\n", atomic_read (&chan->n_frags));
schedule();
if ((ret = via_syscall_down (card, nonblock)))
break;
if (signal_pending (current)) {
DPRINTK ("EXIT, returning -ERESTARTSYS\n");
ret = -ERESTARTSYS;
break;
}
}
set_current_state(TASK_RUNNING);
remove_wait_queue(&chan->wait, &wait);
#ifdef VIA_DEBUG
{
u8 r40,r41,r42,r43,r44,r48;
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, 0x43, &r43);
pci_read_config_byte (card->pdev, 0x44, &r44);
pci_read_config_byte (card->pdev, 0x48, &r48);
DPRINTK ("PCI config: %02X %02X %02X %02X %02X %02X\n",
r40,r41,r42,r43,r44,r48);
DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n",
inb (card->baseaddr + 0x00),
inb (card->baseaddr + 0x01),
inb (card->baseaddr + 0x02),
inl (card->baseaddr + 0x04),
inl (card->baseaddr + 0x0C),
inl (card->baseaddr + 0x80),
inl (card->baseaddr + 0x84));
DPRINTK ("final nbufs=%d\n", atomic_read (&chan->n_frags));
}
#endif
out:
DPRINTK ("EXIT, returning %d\n", ret);
return ret;
}
/**
* via_dsp_ioctl_space - get information about channel buffering
* @card: Private info for specified board
* @chan: pointer to channel-specific info
* @arg: user buffer for returned information
*
* Handles SNDCTL_DSP_GETISPACE and SNDCTL_DSP_GETOSPACE.
*
* Locking: inside card->syscall_mutex
*/
static int via_dsp_ioctl_space (struct via_info *card,
struct via_channel *chan,
void __user *arg)
{
audio_buf_info info;
via_chan_set_buffering(card, chan, -1);
info.fragstotal = chan->frag_number;
info.fragsize = chan->frag_size;
/* number of full fragments we can read/write without blocking */
info.fragments = atomic_read (&chan->n_frags);
if ((chan->slop_len % chan->frag_size > 0) && (info.fragments > 0))
info.fragments--;
/* number of bytes that can be read or written immediately
* without blocking.
*/
info.bytes = (info.fragments * chan->frag_size);
if (chan->slop_len % chan->frag_size > 0)
info.bytes += chan->frag_size - (chan->slop_len % chan->frag_size);
DPRINTK ("EXIT, returning fragstotal=%d, fragsize=%d, fragments=%d, bytes=%d\n",
info.fragstotal,
info.fragsize,
info.fragments,
info.bytes);
return copy_to_user (arg, &info, sizeof (info))?-EFAULT:0;
}
/**
* via_dsp_ioctl_ptr - get information about hardware buffer ptr
* @card: Private info for specified board
* @chan: pointer to channel-specific info
* @arg: user buffer for returned information
*
* Handles SNDCTL_DSP_GETIPTR and SNDCTL_DSP_GETOPTR.
*
* Locking: inside card->syscall_mutex
*/
static int via_dsp_ioctl_ptr (struct via_info *card,
struct via_channel *chan,
void __user *arg)
{
count_info info;
spin_lock_irq (&card->lock);
info.bytes = chan->bytes;
info.blocks = chan->n_irqs;
chan->n_irqs = 0;
spin_unlock_irq (&card->lock);
if (chan->is_active) {
unsigned long extra;
info.ptr = atomic_read (&chan->hw_ptr) * chan->frag_size;
extra = chan->frag_size - via_sg_offset(chan);
info.ptr += extra;
info.bytes += extra;
} else {
info.ptr = 0;
}
DPRINTK ("EXIT, returning bytes=%d, blocks=%d, ptr=%d\n",
info.bytes,
info.blocks,
info.ptr);
return copy_to_user (arg, &info, sizeof (info))?-EFAULT:0;
}
static int via_dsp_ioctl_trigger (struct via_channel *chan, int val)
{
int enable, do_something;
if (chan->is_record)
enable = (val & PCM_ENABLE_INPUT);
else
enable = (val & PCM_ENABLE_OUTPUT);
if (!chan->is_enabled && enable) {
do_something = 1;
} else if (chan->is_enabled && !enable) {
do_something = -1;
} else {
do_something = 0;
}
DPRINTK ("enable=%d, do_something=%d\n",
enable, do_something);
if (chan->is_active && do_something)
return -EINVAL;
if (do_something == 1) {
chan->is_enabled = 1;
via_chan_maybe_start (chan);
DPRINTK ("Triggering input\n");
}
else if (do_something == -1) {
chan->is_enabled = 0;
DPRINTK ("Setup input trigger\n");
}
return 0;
}
static int via_dsp_ioctl (struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int rc, rd=0, wr=0, val=0;
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;
assert (card != NULL);
if (file->f_mode & FMODE_WRITE)
wr = 1;
if (file->f_mode & FMODE_READ)
rd = 1;
rc = via_syscall_down (card, nonblock);
if (rc)
return rc;
rc = -EINVAL;
switch (cmd) {
/* OSS API version. XXX unverified */
case OSS_GETVERSION:
DPRINTK ("ioctl OSS_GETVERSION, EXIT, returning SOUND_VERSION\n");
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, ip);
break;
/* query or set current channel's PCM data format */
case SNDCTL_DSP_SETFMT:
if (get_user(val, ip)) {
rc = -EFAULT;
break;
}
DPRINTK ("DSP_SETFMT, val==%d\n", val);
if (val != AFMT_QUERY) {
rc = 0;
if (rd)
rc = via_chan_set_fmt (card, &card->ch_in, val);
if (rc >= 0 && wr)
rc = via_chan_set_fmt (card, &card->ch_out, val);
if (rc < 0)
break;
val = rc;
} else {
if ((rd && (card->ch_in.pcm_fmt & VIA_PCM_FMT_16BIT)) ||
(wr && (card->ch_out.pcm_fmt & VIA_PCM_FMT_16BIT)))
val = AFMT_S16_LE;
else
val = AFMT_U8;
}
DPRINTK ("SETFMT EXIT, returning %d\n", val);
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, ip)) {
rc = -EFAULT;
break;
}
DPRINTK ("DSP_CHANNELS, val==%d\n", val);
if (val != 0) {
rc = 0;
if (rd)
rc = via_chan_set_stereo (card, &card->ch_in, val);
if (rc >= 0 && wr)
rc = via_chan_set_stereo (card, &card->ch_out, val);
if (rc < 0)
break;
val = rc;
} else {
if (rd)
val = card->ch_in.channels;
else
val = card->ch_out.channels;
}
DPRINTK ("CHANNELS EXIT, returning %d\n", val);
rc = put_user (val, ip);
break;
/* enable (val is not zero) or disable (val == 0) stereo */
case SNDCTL_DSP_STEREO:
if (get_user(val, ip)) {
rc = -EFAULT;
break;
}
DPRINTK ("DSP_STEREO, val==%d\n", val);
rc = 0;
if (rd)
rc = via_chan_set_stereo (card, &card->ch_in, val ? 2 : 1);
if (rc >= 0 && wr)
rc = via_chan_set_stereo (card, &card->ch_out, val ? 2 : 1);
if (rc < 0)
break;
val = rc - 1;
DPRINTK ("STEREO EXIT, returning %d\n", val);
rc = put_user(val, ip);
break;
/* query or set sampling rate */
case SNDCTL_DSP_SPEED:
if (get_user(val, ip)) {
rc = -EFAULT;
break;
}
DPRINTK ("DSP_SPEED, val==%d\n", val);
if (val < 0) {
rc = -EINVAL;
break;
}
if (val > 0) {
rc = 0;
if (rd)
rc = via_chan_set_speed (card, &card->ch_in, val);
if (rc >= 0 && wr)
rc = via_chan_set_speed (card, &card->ch_out, val);
if (rc < 0)
break;
val = rc;
} else {
if (rd)
val = card->ch_in.rate;
else if (wr)
val = card->ch_out.rate;
else
val = 0;
}
DPRINTK ("SPEED EXIT, returning %d\n", val);
rc = put_user (val, ip);
break;
/* wait until all buffers have been played, and then stop device */
case SNDCTL_DSP_SYNC:
DPRINTK ("DSP_SYNC\n");
rc = 0;
if (wr) {
DPRINTK ("SYNC EXIT (after calling via_dsp_drain_playback)\n");
rc = via_dsp_drain_playback (card, &card->ch_out, nonblock);
}
break;
/* stop recording/playback immediately */
case SNDCTL_DSP_RESET:
DPRINTK ("DSP_RESET\n");
if (rd) {
via_chan_clear (card, &card->ch_in);
card->ch_in.frag_number = 0;
card->ch_in.frag_size = 0;
atomic_set(&card->ch_in.n_frags, 0);
}
if (wr) {
via_chan_clear (card, &card->ch_out);
card->ch_out.frag_number = 0;
card->ch_out.frag_size = 0;
atomic_set(&card->ch_out.n_frags, 0);
}
rc = 0;
break;
case SNDCTL_DSP_NONBLOCK:
file->f_flags |= O_NONBLOCK;
rc = 0;
break;
/* 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, ip);
break;
/* obtain buffer fragment size */
case SNDCTL_DSP_GETBLKSIZE:
DPRINTK ("DSP_GETBLKSIZE\n");
if (rd) {
via_chan_set_buffering(card, &card->ch_in, -1);
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, ip);
}
break;
/* obtain information about input buffering */
case SNDCTL_DSP_GETISPACE:
DPRINTK ("DSP_GETISPACE\n");
if (rd)
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, 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, 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, p);
break;
/* return number of bytes remaining to be played by DMA engine */
case SNDCTL_DSP_GETODELAY:
{
DPRINTK ("DSP_GETODELAY\n");
chan = &card->ch_out;
if (!wr)
break;
if (chan->is_active) {
val = chan->frag_number - atomic_read (&chan->n_frags);
assert(val >= 0);
if (val > 0) {
val *= chan->frag_size;
val -= chan->frag_size - via_sg_offset(chan);
}
val += chan->slop_len % chan->frag_size;
} else
val = 0;
assert (val <= (chan->frag_size * chan->frag_number));
DPRINTK ("GETODELAY EXIT, val = %d bytes\n", val);
rc = put_user (val, ip);
break;
}
/* handle the quick-start of a channel,
* or the notification that a quick-start will
* occur in the future
*/
case SNDCTL_DSP_SETTRIGGER:
if (get_user(val, ip)) {
rc = -EFAULT;
break;
}
DPRINTK ("DSP_SETTRIGGER, rd=%d, wr=%d, act=%d/%d, en=%d/%d\n",
rd, wr, card->ch_in.is_active, card->ch_out.is_active,
card->ch_in.is_enabled, card->ch_out.is_enabled);
rc = 0;
if (rd)
rc = via_dsp_ioctl_trigger (&card->ch_in, val);
if (!rc && wr)
rc = via_dsp_ioctl_trigger (&card->ch_out, val);
break;
case SNDCTL_DSP_GETTRIGGER:
val = 0;
if ((file->f_mode & FMODE_READ) && card->ch_in.is_enabled)
val |= PCM_ENABLE_INPUT;
if ((file->f_mode & FMODE_WRITE) && card->ch_out.is_enabled)
val |= PCM_ENABLE_OUTPUT;
rc = put_user(val, ip);
break;
/* Enable full duplex. Since we do this as soon as we are opened
* with O_RDWR, this is mainly a no-op that always returns success.
*/
case SNDCTL_DSP_SETDUPLEX:
DPRINTK ("DSP_SETDUPLEX\n");
if (!rd || !wr)
break;
rc = 0;
break;
/* set fragment size. implemented as a successful no-op for now */
case SNDCTL_DSP_SETFRAGMENT:
if (get_user(val, ip)) {
rc = -EFAULT;
break;
}
DPRINTK ("DSP_SETFRAGMENT, val==%d\n", val);
if (rd)
rc = via_chan_set_buffering(card, &card->ch_in, val);
if (wr)
rc = via_chan_set_buffering(card, &card->ch_out, val);
DPRINTK ("SNDCTL_DSP_SETFRAGMENT (fragshift==0x%04X (%d), maxfrags==0x%04X (%d))\n",
val & 0xFFFF,
val & 0xFFFF,
(val >> 16) & 0xFFFF,
(val >> 16) & 0xFFFF);
rc = 0;
break;
/* inform device of an upcoming pause in input (or output). */
case SNDCTL_DSP_POST:
DPRINTK ("DSP_POST\n");
if (wr) {
if (card->ch_out.slop_len > 0)
via_chan_flush_frag (&card->ch_out);
via_chan_maybe_start (&card->ch_out);
}
rc = 0;
break;
/* not implemented */
default:
DPRINTK ("unhandled ioctl, cmd==%u, arg==%p\n",
cmd, p);
break;
}
mutex_unlock(&card->syscall_mutex);
DPRINTK ("EXIT, returning %d\n", rc);
return rc;
}
static int via_dsp_open (struct inode *inode, struct file *file)
{
int minor = iminor(inode);
struct via_info *card;
struct pci_dev *pdev = NULL;
struct via_channel *chan;
struct pci_driver *drvr;
int nonblock = (file->f_flags & O_NONBLOCK);
DPRINTK ("ENTER, minor=%d, file->f_mode=0x%x\n", minor, file->f_mode);
if (!(file->f_mode & (FMODE_READ | FMODE_WRITE))) {
DPRINTK ("EXIT, returning -EINVAL\n");
return -EINVAL;
}
card = NULL;
while ((pdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) {
drvr = pci_dev_driver (pdev);
if (drvr == &via_driver) {
assert (pci_get_drvdata (pdev) != NULL);
card = pci_get_drvdata (pdev);
DPRINTK ("dev_dsp = %d, minor = %d, assn = %d\n",
card->dev_dsp, minor,
(card->dev_dsp ^ minor) & ~0xf);
if (((card->dev_dsp ^ minor) & ~0xf) == 0)
goto match;
}
}
DPRINTK ("no matching %s found\n", card ? "minor" : "driver");
return -ENODEV;
match:
pci_dev_put(pdev);
if (nonblock) {
if (!mutex_trylock(&card->open_mutex)) {
DPRINTK ("EXIT, returning -EAGAIN\n");
return -EAGAIN;
}
} else {
if (mutex_lock_interruptible(&card->open_mutex)) {
DPRINTK ("EXIT, returning -ERESTARTSYS\n");
return -ERESTARTSYS;
}
}
file->private_data = card;
DPRINTK ("file->f_mode == 0x%x\n", file->f_mode);
/* handle input from analog source */
if (file->f_mode & FMODE_READ) {
chan = &card->ch_in;
via_chan_init (card, chan);
/* why is this forced to 16-bit stereo in all drivers? */
chan->pcm_fmt = VIA_PCM_FMT_16BIT | VIA_PCM_FMT_STEREO;
chan->channels = 2;
// TO DO - use FIFO: via_capture_fifo(card, 1);
via_chan_pcm_fmt (chan, 0);
via_set_rate (card->ac97, chan, 44100);
}
/* handle output to analog source */
if (file->f_mode & FMODE_WRITE) {
chan = &card->ch_out;
via_chan_init (card, chan);
if (file->f_mode & FMODE_READ) {
/* if in duplex mode make the recording and playback channels
have the same settings */
chan->pcm_fmt = VIA_PCM_FMT_16BIT | VIA_PCM_FMT_STEREO;
chan->channels = 2;
via_chan_pcm_fmt (chan, 0);
via_set_rate (card->ac97, chan, 44100);
} else {
if ((minor & 0xf) == SND_DEV_DSP16) {
chan->pcm_fmt = VIA_PCM_FMT_16BIT;
via_chan_pcm_fmt (chan, 0);
via_set_rate (card->ac97, chan, 44100);
} else {
via_chan_pcm_fmt (chan, 1);
via_set_rate (card->ac97, chan, 8000);
}
}
}
DPRINTK ("EXIT, returning 0\n");
return nonseekable_open(inode, file);
}
static int via_dsp_release(struct inode *inode, struct file *file)
{
struct via_info *card;
int nonblock = (file->f_flags & O_NONBLOCK);
int rc;
DPRINTK ("ENTER\n");
assert (file != NULL);
card = file->private_data;
assert (card != NULL);
rc = via_syscall_down (card, nonblock);
if (rc) {
DPRINTK ("EXIT (syscall_down error), rc=%d\n", rc);
return rc;
}
if (file->f_mode & FMODE_WRITE) {
rc = via_dsp_drain_playback (card, &card->ch_out, nonblock);
if (rc && rc != -ERESTARTSYS) /* Nobody needs to know about ^C */
printk (KERN_DEBUG "via_audio: ignoring drain playback error %d\n", rc);
via_chan_free (card, &card->ch_out);
via_chan_buffer_free(card, &card->ch_out);
}
if (file->f_mode & FMODE_READ) {
via_chan_free (card, &card->ch_in);
via_chan_buffer_free (card, &card->ch_in);
}
mutex_unlock(&card->syscall_mutex);
mutex_unlock(&card->open_mutex);
DPRINTK ("EXIT, returning 0\n");
return 0;
}
/****************************************************************
*
* Chip setup and kernel registration
*
*
*/
static int __devinit via_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
{
#ifdef CONFIG_MIDI_VIA82CXXX
u8 r42;
#endif
int rc;
struct via_info *card;
static int printed_version;
DPRINTK ("ENTER\n");
if (printed_version++ == 0)
printk (KERN_INFO "Via 686a/8233/8235 audio driver " VIA_VERSION "\n");
rc = pci_enable_device (pdev);
if (rc)
goto err_out;
rc = pci_request_regions (pdev, "via82cxxx_audio");
if (rc)
goto err_out_disable;
rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
if (rc)
goto err_out_res;
rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
if (rc)
goto err_out_res;
card = kmalloc (sizeof (*card), GFP_KERNEL);
if (!card) {
printk (KERN_ERR PFX "out of memory, aborting\n");
rc = -ENOMEM;
goto err_out_res;
}
pci_set_drvdata (pdev, card);
memset (card, 0, sizeof (*card));
card->pdev = pdev;
card->baseaddr = pci_resource_start (pdev, 0);
card->card_num = via_num_cards++;
spin_lock_init (&card->lock);
spin_lock_init (&card->ac97_lock);
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);
via_chan_init_defaults (card, &card->ch_in);
via_chan_init_defaults (card, &card->ch_fm);
/* if BAR 2 is present, chip is Rev H or later,
* which means it has a few extra features */
if (pci_resource_start (pdev, 2) > 0)
card->rev_h = 1;
/* Overkill for now, but more flexible done right */
card->intmask = id->driver_data;
card->legacy = !card->intmask;
card->sixchannel = id->driver_data;
if(card->sixchannel)
printk(KERN_INFO PFX "Six channel audio available\n");
if (pdev->irq < 1) {
printk (KERN_ERR PFX "invalid PCI IRQ %d, aborting\n", pdev->irq);
rc = -ENODEV;
goto err_out_kfree;
}
if (!(pci_resource_flags (pdev, 0) & IORESOURCE_IO)) {
printk (KERN_ERR PFX "unable to locate I/O resources, aborting\n");
rc = -ENODEV;
goto err_out_kfree;
}
pci_set_master(pdev);
/*
* init AC97 mixer and codec
*/
rc = via_ac97_init (card);
if (rc) {
printk (KERN_ERR PFX "AC97 init failed, aborting\n");
goto err_out_kfree;
}
/*
* init DSP device
*/
rc = via_dsp_init (card);
if (rc) {
printk (KERN_ERR PFX "DSP device init failed, aborting\n");
goto err_out_have_mixer;
}
/*
* 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_dsp;
}
printk (KERN_INFO PFX "board #%d at 0x%04lX, IRQ %d\n",
card->card_num + 1, card->baseaddr, pdev->irq);
#ifdef CONFIG_MIDI_VIA82CXXX
/* Disable by default */
card->midi_info.io_base = 0;
if(card->legacy)
{
pci_read_config_byte (pdev, 0x42, &r42);
/* Disable MIDI interrupt */
pci_write_config_byte (pdev, 0x42, r42 | VIA_CR42_MIDI_IRQMASK);
if (r42 & VIA_CR42_MIDI_ENABLE)
{
if (r42 & VIA_CR42_MIDI_PNP) /* Address selected by iobase 2 - not tested */
card->midi_info.io_base = pci_resource_start (pdev, 2);
else /* Address selected by byte 0x43 */
{
u8 r43;
pci_read_config_byte (pdev, 0x43, &r43);
card->midi_info.io_base = 0x300 + ((r43 & 0x0c) << 2);
}
card->midi_info.irq = -pdev->irq;
if (probe_uart401(& card->midi_info, THIS_MODULE))
{
card->midi_devc=midi_devs[card->midi_info.slots[4]]->devc;
pci_write_config_byte(pdev, 0x42, r42 & ~VIA_CR42_MIDI_IRQMASK);
printk("Enabled Via MIDI\n");
}
}
}
#endif
DPRINTK ("EXIT, returning 0\n");
return 0;
err_out_have_dsp:
via_dsp_cleanup (card);
err_out_have_mixer:
via_ac97_cleanup (card);
err_out_kfree:
#ifndef VIA_NDEBUG
memset (card, OSS_POISON_FREE, sizeof (*card)); /* poison memory */
#endif
kfree (card);
err_out_res:
pci_release_regions (pdev);
err_out_disable:
pci_disable_device (pdev);
err_out:
pci_set_drvdata (pdev, NULL);
DPRINTK ("EXIT - returning %d\n", rc);
return rc;
}
static void __devexit via_remove_one (struct pci_dev *pdev)
{
struct via_info *card;
DPRINTK ("ENTER\n");
assert (pdev != NULL);
card = pci_get_drvdata (pdev);
assert (card != NULL);
#ifdef CONFIG_MIDI_VIA82CXXX
if (card->midi_info.io_base)
unload_uart401(&card->midi_info);
#endif
free_irq (card->pdev->irq, card);
via_dsp_cleanup (card);
via_ac97_cleanup (card);
#ifndef VIA_NDEBUG
memset (card, OSS_POISON_FREE, sizeof (*card)); /* poison memory */
#endif
kfree (card);
pci_set_drvdata (pdev, NULL);
pci_release_regions (pdev);
pci_disable_device (pdev);
pci_set_power_state (pdev, 3); /* ...zzzzzz */
DPRINTK ("EXIT\n");
return;
}
/****************************************************************
*
* Driver initialization and cleanup
*
*
*/
static int __init init_via82cxxx_audio(void)
{
int rc;
DPRINTK ("ENTER\n");
rc = pci_register_driver (&via_driver);
if (rc) {
DPRINTK ("EXIT, returning %d\n", rc);
return rc;
}
DPRINTK ("EXIT, returning 0\n");
return 0;
}
static void __exit cleanup_via82cxxx_audio(void)
{
DPRINTK ("ENTER\n");
pci_unregister_driver (&via_driver);
DPRINTK ("EXIT\n");
}
module_init(init_via82cxxx_audio);
module_exit(cleanup_via82cxxx_audio);
MODULE_AUTHOR("Jeff Garzik");
MODULE_DESCRIPTION("DSP audio and mixer driver for Via 82Cxxx audio devices");
MODULE_LICENSE("GPL");
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