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freebsd/sys/i386/isa/sound/pss.c

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/* Marc.Hoffman@analog.com
This is a pss driver.
it is based on Greg.Yukna@analog.com @file{host} for DOG
Unfortunately I can't distribute the ld file needed to
make the pss card to emulate the SB stuff.
I have provided a simple interface to the PSS unlike the
DOG version. to download a new algorithim just cat it to
/dev/pss 14,9.
You really need to rebuild this with the synth.ld file
get the <synth>.ld from your dos directory maybe
voyetra\dsp001.ld
ld2inc < synth.ld > synth-ld.h
(make config does the same).
rebuild
Okay if you blow things away no problem just
main(){ioctl(open("/dev/pss"),SNDCTL_PSS_RESET)};
and everything will be okay.
At first I was going to wory about applications that were using
the sound stuff and disallow the use of /dev/pss. But for
now I figured it doesn't matter.
And if you change algos all the other applications running die off
due to DMA problems. Yeah just pull the plug and watch em die.
If the registers get hosed
main(){ioctl(open("/dev/pss"),SNDCTL_PSS_SETUP_REGISTERS)};
Probably everything else can be done via mmap
Oh if you want to develope code for the ADSP-21xx or Program the
1848 just send me mail and I will hook you up.
marc.hoffman@analog.com
* $Id: $
*/
#include "sound_config.h"
#if defined(CONFIGURE_SOUNDCARD) && !defined(EXCLUDE_PSS)
#ifndef PSS_MSS_BASE
#define PSS_MSS_BASE 0
#endif
#ifndef PSS_MPU_BASE
#define PSS_MPU_BASE 0
#endif
#ifndef PSS_MPU_IRQ
#define PSS_MPU_IRQ 0
#endif
#undef DEB
#define DEB(x) x
#include "pss.h"
static int pss_ok = 0;
static int sb_ok = 0;
static int pss_base;
static int pss_irq;
static int pss_dma;
static int gamePort = 0;
static int sbInt;
static int cdPol;
static int cdAddr = 0; /* 0x340; */
static int cdInt = 10;
/* Define these by hand in local.h */
static int wssAddr = PSS_MSS_BASE;
static int midiAddr = PSS_MPU_BASE;
static int midiInt = PSS_MPU_IRQ;
static int SoundPortAddress;
static int SoundPortData;
static int speaker = 1;
static struct pss_speaker default_speaker =
{0, 0, 0, PSS_STEREO};
DEFINE_WAIT_QUEUE (pss_sleeper, pss_sleep_flag);
#include "synth-ld.h"
static int pss_download_boot (unsigned char *block, int size);
static int pss_reset_dsp (void);
static inline void
pss_outpw (unsigned short port, unsigned short value)
{
__asm__ __volatile__ ("outw %w0, %w1"
: /* no outputs */
:"a" (value), "d" (port));
}
static inline unsigned int
pss_inpw (unsigned short port)
{
unsigned int _v;
__asm__ __volatile__ ("inw %w1,%w0"
:"=a" (_v):"d" (port), "0" (0));
return _v;
}
static void
PSS_write (int data)
{
int i, limit;
limit = GET_TIME () + 10; /* The timeout is 0.1 secods */
/*
* Note! the i<5000000 is an emergency exit. The dsp_command() is sometimes
* called while interrupts are disabled. This means that the timer is
* disabled also. However the timeout situation is a abnormal condition.
* Normally the DSP should be ready to accept commands after just couple of
* loops.
*/
for (i = 0; i < 5000000 && GET_TIME () < limit; i++)
{
if (pss_inpw (pss_base + PSS_STATUS) & PSS_WRITE_EMPTY)
{
pss_outpw (pss_base + PSS_DATA, data);
return;
}
}
printk ("PSS: DSP Command (%04x) Timeout.\n", data);
printk ("IRQ conflict???\n");
}
static void
pss_setaddr (int addr, int configAddr)
{
int val;
val = pss_inpw (configAddr);
val &= ADDR_MASK;
val |= (addr << 4);
pss_outpw (configAddr, val);
}
/*_____ pss_checkint
This function tests an interrupt number to see if
it is availible. It takes the interrupt button
as it's argument and returns TRUE if the interrupt
is ok.
*/
static int
pss_checkint (int intNum)
{
int val;
int ret;
int i;
/*_____ Set the interrupt bits */
switch (intNum)
{
case 3:
val = pss_inpw (pss_base + PSS_CONFIG);
val &= INT_MASK;
val |= INT_3_BITS;
pss_outpw (pss_base + PSS_CONFIG, val);
break;
case 5:
val = pss_inpw (pss_base + PSS_CONFIG);
val &= INT_MASK;
val |= INT_5_BITS;
pss_outpw (pss_base + PSS_CONFIG, val);
break;
case 7:
val = pss_inpw (pss_base + PSS_CONFIG);
val &= INT_MASK;
val |= INT_7_BITS;
pss_outpw (pss_base + PSS_CONFIG, val);
break;
case 9:
val = pss_inpw (pss_base + PSS_CONFIG);
val &= INT_MASK;
val |= INT_9_BITS;
pss_outpw (pss_base + PSS_CONFIG, val);
break;
case 10:
val = pss_inpw (pss_base + PSS_CONFIG);
val &= INT_MASK;
val |= INT_10_BITS;
pss_outpw (pss_base + PSS_CONFIG, val);
break;
case 11:
val = pss_inpw (pss_base + PSS_CONFIG);
val &= INT_MASK;
val |= INT_11_BITS;
pss_outpw (pss_base + PSS_CONFIG, val);
break;
case 12:
val = pss_inpw (pss_base + PSS_CONFIG);
val &= INT_MASK;
val |= INT_12_BITS;
pss_outpw (pss_base + PSS_CONFIG, val);
break;
default:
printk ("unknown interupt selected. %d\n", intNum);
return 0;
}
/*_____ Set the interrupt test bit */
val = pss_inpw (pss_base + PSS_CONFIG);
val |= INT_TEST_BIT;
pss_outpw (pss_base + PSS_CONFIG, val);
/*_____ Check if the interrupt is in use */
/*_____ Do it a few times in case there is a delay */
ret = 0;
for (i = 0; i < 5; i++)
{
val = pss_inpw (pss_base + PSS_CONFIG);
if (val & INT_TEST_PASS)
{
ret = 1;
break;
}
}
/*_____ Clear the Test bit and the interrupt bits */
val = pss_inpw (pss_base + PSS_CONFIG);
val &= INT_TEST_BIT_MASK;
val &= INT_MASK;
pss_outpw (pss_base + PSS_CONFIG, val);
return (ret);
}
/*____ pss_setint
This function sets the correct bits in the
configuration register to
enable the chosen interrupt.
*/
static void
pss_setint (int intNum, int configAddress)
{
int val;
switch (intNum)
{
case 0:
val = pss_inpw (configAddress);
val &= INT_MASK;
pss_outpw (configAddress, val);
break;
case 3:
val = pss_inpw (configAddress);
val &= INT_MASK;
val |= INT_3_BITS;
pss_outpw (configAddress, val);
break;
case 5:
val = pss_inpw (configAddress);
val &= INT_MASK;
val |= INT_5_BITS;
pss_outpw (configAddress, val);
break;
case 7:
val = pss_inpw (configAddress);
val &= INT_MASK;
val |= INT_7_BITS;
pss_outpw (configAddress, val);
break;
case 9:
val = pss_inpw (configAddress);
val &= INT_MASK;
val |= INT_9_BITS;
pss_outpw (configAddress, val);
break;
case 10:
val = pss_inpw (configAddress);
val &= INT_MASK;
val |= INT_10_BITS;
pss_outpw (configAddress, val);
break;
case 11:
val = pss_inpw (configAddress);
val &= INT_MASK;
val |= INT_11_BITS;
pss_outpw (configAddress, val);
break;
case 12:
val = pss_inpw (configAddress);
val &= INT_MASK;
val |= INT_12_BITS;
pss_outpw (configAddress, val);
break;
default:
printk ("pss_setint unkown int\n");
}
}
/*____ pss_setsbint
This function sets the correct bits in the
SoundBlaster configuration PSS register to
enable the chosen interrupt.
It takes a interrupt button as its argument.
*/
static void
pss_setsbint (int intNum)
{
int val;
int sbConfigAddress;
sbConfigAddress = pss_base + SB_CONFIG;
switch (intNum)
{
case 3:
val = pss_inpw (sbConfigAddress);
val &= INT_MASK;
val |= INT_3_BITS;
pss_outpw (sbConfigAddress, val);
break;
case 5:
val = pss_inpw (sbConfigAddress);
val &= INT_MASK;
val |= INT_5_BITS;
pss_outpw (sbConfigAddress, val);
break;
case 7:
val = pss_inpw (sbConfigAddress);
val &= INT_MASK;
val |= INT_7_BITS;
pss_outpw (sbConfigAddress, val);
break;
default:
printk ("pss_setsbint: unknown_int\n");
}
}
/*____ pss_setsbdma
This function sets the correct bits in the
SoundBlaster configuration PSS register to
enable the chosen DMA channel.
It takes a DMA button as its argument.
*/
static void
pss_setsbdma (int dmaNum)
{
int val;
int sbConfigAddress;
sbConfigAddress = pss_base + SB_CONFIG;
switch (dmaNum)
{
case 1:
val = pss_inpw (sbConfigAddress);
val &= DMA_MASK;
val |= DMA_1_BITS;
pss_outpw (sbConfigAddress, val);
break;
default:
printk ("Personal Sound System ERROR! pss_setsbdma: unknown_dma\n");
}
}
/*____ pss_setwssdma
This function sets the correct bits in the
WSS configuration PSS register to
enable the chosen DMA channel.
It takes a DMA button as its argument.
*/
static void
pss_setwssdma (int dmaNum)
{
int val;
int wssConfigAddress;
wssConfigAddress = pss_base + PSS_WSS_CONFIG;
switch (dmaNum)
{
case 0:
val = pss_inpw (wssConfigAddress);
val &= DMA_MASK;
val |= DMA_0_BITS;
pss_outpw (wssConfigAddress, val);
break;
case 1:
val = pss_inpw (wssConfigAddress);
val &= DMA_MASK;
val |= DMA_1_BITS;
pss_outpw (wssConfigAddress, val);
break;
case 3:
val = pss_inpw (wssConfigAddress);
val &= DMA_MASK;
val |= DMA_3_BITS;
pss_outpw (wssConfigAddress, val);
break;
default:
printk ("Personal Sound System ERROR! pss_setwssdma: unknown_dma\n");
}
}
/*_____ SetSpeakerOut
This function sets the Volume, Bass, Treble and Mode of
the speaker out channel.
*/
void
pss_setspeaker (struct pss_speaker *spk)
{
PSS_write (SET_MASTER_COMMAND);
if (spk->volume > PHILLIPS_VOL_MAX)
spk->volume = PHILLIPS_VOL_MAX;
if (spk->volume < PHILLIPS_VOL_MIN)
spk->volume = PHILLIPS_VOL_MIN;
PSS_write (MASTER_VOLUME_LEFT
| (PHILLIPS_VOL_CONSTANT + spk->volume / PHILLIPS_VOL_STEP));
PSS_write (SET_MASTER_COMMAND);
PSS_write (MASTER_VOLUME_RIGHT
| (PHILLIPS_VOL_CONSTANT + spk->volume / PHILLIPS_VOL_STEP));
if (spk->bass > PHILLIPS_BASS_MAX)
spk->bass = PHILLIPS_BASS_MAX;
if (spk->bass < PHILLIPS_BASS_MIN)
spk->bass = PHILLIPS_BASS_MIN;
PSS_write (SET_MASTER_COMMAND);
PSS_write (MASTER_BASS
| (PHILLIPS_BASS_CONSTANT + spk->bass / PHILLIPS_BASS_STEP));
if (spk->treb > PHILLIPS_TREBLE_MAX)
spk->treb = PHILLIPS_TREBLE_MAX;
if (spk->treb < PHILLIPS_TREBLE_MIN)
spk->treb = PHILLIPS_TREBLE_MIN;
PSS_write (SET_MASTER_COMMAND);
PSS_write (MASTER_TREBLE
| (PHILLIPS_TREBLE_CONSTANT + spk->treb / PHILLIPS_TREBLE_STEP));
PSS_write (SET_MASTER_COMMAND);
PSS_write (MASTER_SWITCH | spk->mode);
}
static void
pss_init1848 (void)
{
/*_____ Wait for 1848 to init */
while (INB (SoundPortAddress) & SP_IN_INIT);
/*_____ Wait for 1848 to autocal */
OUTB (SoundPortAddress, SP_TEST_AND_INIT);
while (INB (SoundPortData) & AUTO_CAL_IN_PROG);
}
static int
pss_configure_registers_to_look_like_sb (void)
{
pss_setaddr (wssAddr, pss_base + PSS_WSS_CONFIG);
SoundPortAddress = wssAddr + 4;
SoundPortData = wssAddr + 5;
DEB (printk ("Turning Game Port %s.\n",
gamePort ? "On" : "Off"));
/*_____ Turn on the Game port */
if (gamePort)
pss_outpw (pss_base + PSS_STATUS,
pss_inpw (pss_base + PSS_STATUS) | GAME_BIT);
else
pss_outpw (pss_base + PSS_STATUS,
pss_inpw (pss_base + PSS_STATUS) & GAME_BIT_MASK);
DEB (printk ("PSS attaching base %x irq %d dma %d\n",
pss_base, pss_irq, pss_dma));
/* Check if sb is enabled if it is check the interrupt */
pss_outpw (pss_base + SB_CONFIG, 0);
if (pss_irq != 0)
{
DEB (printk ("PSS Emulating Sound Blaster ADDR %04x\n", pss_base));
DEB (printk ("PSS SBC: attaching base %x irq %d dma %d\n",
SBC_BASE, SBC_IRQ, SBC_DMA));
if (pss_checkint (SBC_IRQ) == 0)
{
printk ("PSS! attach: int_error\n");
return 0;
}
pss_setsbint (SBC_IRQ);
pss_setsbdma (SBC_DMA);
sb_ok = 1;
}
else
{
sb_ok = 0;
printk ("PSS: sound blaster error init\n");
}
/* Check if cd is enabled if it is check the interrupt */
pss_outpw (pss_base + CD_CONFIG, 0);
if (cdAddr != 0)
{
DEB (printk ("PSS:CD drive %x irq: %d", cdAddr, cdInt));
if (cdInt != 0)
{
if (pss_checkint (cdInt) == 0)
{
printk ("Can't allocate cdInt %d\n", cdInt);
}
else
{
int val;
printk ("CD poll ");
pss_setaddr (cdAddr, pss_base + CD_CONFIG);
pss_setint (cdInt, pss_base + CD_CONFIG);
/* set the correct bit in the
configuration register to
set the irq polarity for the CD-Rom.
NOTE: This bit is in the address config
field, It must be configured after setting
the CD-ROM ADDRESS!!! */
val = pss_inpw (pss_base + CD_CONFIG);
pss_outpw (pss_base + CD_CONFIG, 0);
val &= CD_POL_MASK;
if (cdPol)
val |= CD_POL_BIT;
pss_outpw (pss_base + CD_CONFIG, val);
}
}
}
/* Check if midi is enabled if it is check the interrupt */
pss_outpw (pss_base + MIDI_CONFIG, 0);
if (midiAddr != 0)
{
printk ("midi init %x %d\n", midiAddr, midiInt);
if (pss_checkint (midiInt) == 0)
{
printk ("midi init int error %x %d\n", midiAddr, midiInt);
}
else
{
pss_setaddr (midiAddr, pss_base + MIDI_CONFIG);
pss_setint (midiInt, pss_base + MIDI_CONFIG);
}
}
return 1;
}
long
attach_pss (long mem_start, struct address_info *hw_config)
{
if (pss_ok)
{
if (hw_config)
{
printk (" <PSS-ESC614>");
}
return mem_start;
}
pss_ok = 1;
if (pss_configure_registers_to_look_like_sb () == 0)
return mem_start;
if (sb_ok)
if (pss_synthLen
&& pss_download_boot (pss_synth, pss_synthLen))
{
if (speaker)
pss_setspeaker (&default_speaker);
pss_ok = 1;
}
else
pss_reset_dsp ();
return mem_start;
}
int
probe_pss (struct address_info *hw_config)
{
pss_base = hw_config->io_base;
pss_irq = hw_config->irq;
pss_dma = hw_config->dma;
if ((pss_inpw (pss_base + 4) & 0xff00) == 0x4500)
{
attach_pss (0, hw_config);
return 1;
}
printk (" fail base %x irq %d dma %d\n", pss_base, pss_irq, pss_dma);
return 0;
}
static int
pss_reattach (void)
{
pss_ok = 0;
attach_pss (0, 0);
return 1;
}
static int
pss_reset_dsp ()
{
unsigned long i, limit = GET_TIME () + 10;
pss_outpw (pss_base + PSS_CONTROL, 0x2000);
for (i = 0; i < 32768 && GET_TIME () < limit; i++)
pss_inpw (pss_base + PSS_CONTROL);
pss_outpw (pss_base + PSS_CONTROL, 0x0000);
return 1;
}
static int
pss_download_boot (unsigned char *block, int size)
{
int i, limit, val, count;
printk ("PSS: downloading boot code synth.ld... ");
/*_____ Warn DSP software that a boot is coming */
pss_outpw (pss_base + PSS_DATA, 0x00fe);
limit = GET_TIME () + 10;
for (i = 0; i < 32768 && GET_TIME () < limit; i++)
if (pss_inpw (pss_base + PSS_DATA) == 0x5500)
break;
pss_outpw (pss_base + PSS_DATA, *block++);
pss_reset_dsp ();
printk ("start ");
count = 1;
while (1)
{
int j;
for (j = 0; j < 327670; j++)
{
/*_____ Wait for BG to appear */
if (pss_inpw (pss_base + PSS_STATUS) & PSS_FLAG3)
break;
}
if (j == 327670)
{
/* It's ok we timed out when the file was empty */
if (count >= size)
break;
else
{
printk ("\nPSS: DownLoad timeout problems, byte %d=%d\n",
count, size);
return 0;
}
}
/*_____ Send the next byte */
pss_outpw (pss_base + PSS_DATA, *block++);
count++;
}
/*_____ Why */
pss_outpw (pss_base + PSS_DATA, 0);
limit = GET_TIME () + 10;
for (i = 0; i < 32768 && GET_TIME () < limit; i++)
val = pss_inpw (pss_base + PSS_STATUS);
printk ("downloaded\n");
limit = GET_TIME () + 10;
for (i = 0; i < 32768 && GET_TIME () < limit; i++)
{
val = pss_inpw (pss_base + PSS_STATUS);
if (val & 0x4000)
break;
}
/* now read the version */
for (i = 0; i < 32000; i++)
{
val = pss_inpw (pss_base + PSS_STATUS_REG);
if (val & PSS_READ_FULL)
break;
}
if (i == 32000)
return 0;
val = pss_inpw (pss_base + PSS_DATA_REG);
return 1;
}
/* The following is a simple device driver for the pss.
All I really care about is comunication to and from the pss.
The ability to reinitialize the <synth.ld> This will be
default when release is choosen.
SNDCTL_PSS_DOWNLOAD:
Okay we need to creat new minor numbers for the
DOWNLOAD functionality.
14,0x19 -- /dev/pssld where a read operation would output the
current ld to user space
where a write operation would effectively
download a new ld.
14,0x09 -- /dev/psecho would open up a comunication path to the
esc614 asic. Given the ability to send
messages to the asic and recive messages too.
All messages would get read and written in the
same manner. It would be up to the application
and the ld to maintain a relationship
of what the messages mean.
for this device we need to implement select. */
#define CODE_BUFFER_LEN (64*1024)
static char *code_buffer;
static int code_length;
static int lock_pss = 0;
int
pss_open (int dev, struct fileinfo *file)
{
int mode;
DEB (printk ("pss_open\n"));
if (pss_ok == 0)
return RET_ERROR (EIO);
if (lock_pss)
return 0;
lock_pss = 1;
dev = dev >> 4;
mode = file->mode & O_ACCMODE;
if (mode == O_WRONLY)
{
printk ("pss-open for WRONLY\n");
code_length = 0;
}
RESET_WAIT_QUEUE (pss_sleeper, pss_sleep_flag);
return 1;
}
void
pss_release (int dev, struct fileinfo *file)
{
int mode;
DEB (printk ("pss_release\n"));
if (pss_ok == 0)
return RET_ERROR (EIO);
dev = dev >> 4;
mode = file->mode & O_ACCMODE;
if (mode == O_WRONLY && code_length > 0)
{
#ifdef linux
/* This just allows interrupts while the conversion is running */
__asm__ ("sti");
#endif
if (!pss_download_boot (code_buffer, code_length))
{
pss_reattach ();
}
}
lock_pss = 0;
}
int
pss_read (int dev, struct fileinfo *file, snd_rw_buf * buf, int count)
{
int c, p;
DEB (printk ("pss_read\n"));
if (pss_ok == 0)
return RET_ERROR (EIO);
dev = dev >> 4;
p = 0;
c = count;
return count - c;
}
int
pss_write (int dev, struct fileinfo *file, snd_rw_buf * buf, int count)
{
DEB (printk ("pss_write\n"));
if (pss_ok == 0)
return RET_ERROR (EIO);
dev = dev >> 4;
if (count) /* Flush output */
{
COPY_FROM_USER (&code_buffer[code_length], buf, 0, count);
code_length += count;
}
return count;
}
int
pss_ioctl (int dev, struct fileinfo *file,
unsigned int cmd, unsigned int arg)
{
DEB (printk ("pss_ioctl dev=%d cmd=%x\n", dev, cmd));
if (pss_ok == 0)
return RET_ERROR (EIO);
dev = dev >> 4;
switch (cmd)
{
case SNDCTL_PSS_RESET:
pss_reattach ();
return 1;
case SNDCTL_PSS_SETUP_REGISTERS:
pss_configure_registers_to_look_like_sb ();
return 1;
case SNDCTL_PSS_SPEAKER:
{
struct pss_speaker params;
COPY_FROM_USER (&params, (char *) arg, 0, sizeof (struct pss_speaker));
pss_setspeaker (&params);
return 0;
}
default:
return RET_ERROR (EIO);
}
}
/* This is going to be used to implement
waiting on messages sent from the DSP and to the
DSP when comunication is used via the pss directly.
We need to find out if the pss can generate a diffrent
interupt other than the one it has been setup for.
This way we can carry on a conversation with the pss
on a seprate chanel. This would be usefull for debugging. */
pss_select (int dev, struct fileinfo * file, int sel_type, select_table * wait)
{
return 0;
if (pss_ok == 0)
return RET_ERROR (EIO);
dev = dev >> 4;
switch (sel_type)
{
case SEL_IN:
select_wait (&pss_sleeper, wait);
return 0;
break;
case SEL_OUT:
select_wait (&pss_sleeper, wait);
return 0;
break;
case SEL_EX:
return 0;
}
return 0;
}
long
pss_init (long mem_start)
{
DEB (printk ("pss_init\n"));
if (pss_ok)
{
code_buffer = mem_start;
mem_start += CODE_BUFFER_LEN;
}
return mem_start;
}
#endif
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