/*
*
* AD1816 lowlevel sound driver for Linux 2.2.0 and above
*
* Copyright (C) 1998 by Thorsten Knabe <tek@rbg.informatik.tu-darmstadt.de>
*
* Based on the CS4232/AD1848 driver Copyright (C) by Hannu Savolainen 1993-1996
*
*
* version: 1.3.1
* status: experimental
* date: 1999/4/18
*
* Changes:
* Oleg Drokin: Some cleanup of load/unload functions. 1998/11/24
*
* Thorsten Knabe: attach and unload rewritten,
* some argument checks added 1998/11/30
*
* Thorsten Knabe: Buggy isa bridge workaround added 1999/01/16
*
* David Moews/Thorsten Knabe: Introduced options
* parameter. Added slightly modified patch from
* David Moews to disable dsp audio sources by setting
* bit 0 of options parameter. This seems to be
* required by some Aztech/Newcom SC-16 cards. 1999/04/18
*
* Christoph Hellwig: Adapted to module_init/module_exit. 2000/03/03
*
* Christoph Hellwig: Added isapnp support 2000/03/15
*
* Arnaldo Carvalho de Melo: get rid of check_region 2001/10/07
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/isapnp.h>
#include <linux/stddef.h>
#include "sound_config.h"
#define DEBUGNOISE(x)
#define DEBUGINFO(x)
#define DEBUGLOG(x)
#define DEBUGWARN(x)
#define CHECK_FOR_POWER { int timeout=100; \
while (timeout > 0 && (inb(devc->base)&0x80)!= 0x80) {\
timeout--; \
} \
if (timeout==0) {\
printk(KERN_WARNING "ad1816: Check for power failed in %s line: %d\n",__FILE__,__LINE__); \
} \
}
/* structure to hold device specific information */
typedef struct
{
int base; /* set in attach */
int irq;
int dma_playback;
int dma_capture;
int speed; /* open */
int channels;
int audio_format;
unsigned char format_bits;
int audio_mode;
int opened;
int recmask; /* setup */
int supported_devices;
int supported_rec_devices;
unsigned short levels[SOUND_MIXER_NRDEVICES];
int dev_no; /* this is the # in audio_devs and NOT
in ad1816_info */
int irq_ok;
int *osp;
} ad1816_info;
static int nr_ad1816_devs;
static int ad1816_clockfreq = 33000;
static int options;
/* for backward mapping of irq to sound device */
static volatile char irq2dev[17] = {-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1};
/* supported audio formats */
static int ad_format_mask =
AFMT_U8 | AFMT_S16_LE | AFMT_S16_BE | AFMT_MU_LAW | AFMT_A_LAW;
/* array of device info structures */
static ad1816_info dev_info[MAX_AUDIO_DEV];
/* ------------------------------------------------------------------- */
/* functions for easier access to inderect registers */
static int ad_read (ad1816_info * devc, int reg)
{
unsigned long flags;
int result;
CHECK_FOR_POWER;
save_flags (flags); /* make register access atomic */
cli ();
outb ((unsigned char) (reg & 0x3f), devc->base+0);
result = inb(devc->base+2);
result+= inb(devc->base+3)<<8;
restore_flags (flags);
return (result);
}
static void ad_write (ad1816_info * devc, int reg, int data)
{
unsigned long flags;
CHECK_FOR_POWER;
save_flags (flags); /* make register access atomic */
cli ();
outb ((unsigned char) (reg & 0xff), devc->base+0);
outb ((unsigned char) (data & 0xff),devc->base+2);
outb ((unsigned char) ((data>>8)&0xff),devc->base+3);
restore_flags (flags);
}
/* ------------------------------------------------------------------- */
/* function interface required by struct audio_driver */
static void ad1816_halt_input (int dev)
{
unsigned long flags;
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
unsigned char buffer;
DEBUGINFO (printk("ad1816: halt_input called\n"));
save_flags (flags);
cli ();
if(!isa_dma_bridge_buggy) {
disable_dma(audio_devs[dev]->dmap_in->dma);
}
buffer=inb(devc->base+9);
if (buffer & 0x01) {
/* disable capture */
outb(buffer & ~0x01,devc->base+9);
}
if(!isa_dma_bridge_buggy) {
enable_dma(audio_devs[dev]->dmap_in->dma);
}
/* Clear interrupt status */
outb (~0x40, devc->base+1);
devc->audio_mode &= ~PCM_ENABLE_INPUT;
restore_flags (flags);
}
static void ad1816_halt_output (int dev)
{
unsigned long flags;
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
unsigned char buffer;
DEBUGINFO (printk("ad1816: halt_output called!\n"));
save_flags (flags);
cli ();
/* Mute pcm output */
ad_write(devc, 4, ad_read(devc,4)|0x8080);
if(!isa_dma_bridge_buggy) {
disable_dma(audio_devs[dev]->dmap_out->dma);
}
buffer=inb(devc->base+8);
if (buffer & 0x01) {
/* disable capture */
outb(buffer & ~0x01,devc->base+8);
}
if(!isa_dma_bridge_buggy) {
enable_dma(audio_devs[dev]->dmap_out->dma);
}
/* Clear interrupt status */
outb ((unsigned char)~0x80, devc->base+1);
devc->audio_mode &= ~PCM_ENABLE_OUTPUT;
restore_flags (flags);
}
static void ad1816_output_block (int dev, unsigned long buf,
int count, int intrflag)
{
unsigned long flags;
unsigned long cnt;
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
DEBUGINFO(printk("ad1816: output_block called buf=%ld count=%d flags=%d\n",buf,count,intrflag));
cnt = count/4 - 1;
save_flags (flags);
cli ();
/* set transfer count */
ad_write (devc, 8, cnt & 0xffff);
devc->audio_mode |= PCM_ENABLE_OUTPUT;
restore_flags (flags);
}
static void ad1816_start_input (int dev, unsigned long buf, int count,
int intrflag)
{
unsigned long flags;
unsigned long cnt;
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
DEBUGINFO(printk("ad1816: start_input called buf=%ld count=%d flags=%d\n",buf,count,intrflag));
cnt = count/4 - 1;
save_flags (flags); /* make register access atomic */
cli ();
/* set transfer count */
ad_write (devc, 10, cnt & 0xffff);
devc->audio_mode |= PCM_ENABLE_INPUT;
restore_flags (flags);
}
static int ad1816_prepare_for_input (int dev, int bsize, int bcount)
{
unsigned long flags;
unsigned int freq;
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
unsigned char fmt_bits;
DEBUGINFO (printk ("ad1816: prepare_for_input called: bsize=%d bcount=%d\n",bsize,bcount));
save_flags (flags);
cli ();
fmt_bits= (devc->format_bits&0x7)<<3;
/* set mono/stereo mode */
if (devc->channels > 1) {
fmt_bits |=0x4;
}
/* set Mono/Stereo in playback/capture register */
outb( (inb(devc->base+8) & ~0x3C)|fmt_bits, devc->base+8);
outb( (inb(devc->base+9) & ~0x3C)|fmt_bits, devc->base+9);
/* If compiled into kernel, AD1816_CLOCK is defined, so use it */
#ifdef AD1816_CLOCK
ad1816_clockfreq=AD1816_CLOCK;
#endif
/* capture/playback frequency correction for soundcards
with clock chips != 33MHz (allowed range 5 - 100 kHz) */
if (ad1816_clockfreq<5000 || ad1816_clockfreq>100000) {
ad1816_clockfreq=33000;
}
freq=((unsigned int)devc->speed*33000)/ad1816_clockfreq;
/* write playback/capture speeds */
ad_write (devc, 2, freq & 0xffff);
ad_write (devc, 3, freq & 0xffff);
restore_flags (flags);
ad1816_halt_input(dev);
return 0;
}
static int ad1816_prepare_for_output (int dev, int bsize, int bcount)
{
unsigned long flags;
unsigned int freq;
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
unsigned char fmt_bits;
DEBUGINFO (printk ("ad1816: prepare_for_output called: bsize=%d bcount=%d\n",bsize,bcount));
save_flags (flags); /* make register access atomic */
cli ();
fmt_bits= (devc->format_bits&0x7)<<3;
/* set mono/stereo mode */
if (devc->channels > 1) {
fmt_bits |=0x4;
}
/* write format bits to playback/capture registers */
outb( (inb(devc->base+8) & ~0x3C)|fmt_bits, devc->base+8);
outb( (inb(devc->base+9) & ~0x3C)|fmt_bits, devc->base+9);
#ifdef AD1816_CLOCK
ad1816_clockfreq=AD1816_CLOCK;
#endif
/* capture/playback frequency correction for soundcards
with clock chips != 33MHz (allowed range 5 - 100 kHz)*/
if (ad1816_clockfreq<5000 || ad1816_clockfreq>100000) {
ad1816_clockfreq=33000;
}
freq=((unsigned int)devc->speed*33000)/ad1816_clockfreq;
/* write playback/capture speeds */
ad_write (devc, 2, freq & 0xffff);
ad_write (devc, 3, freq & 0xffff);
restore_flags (flags);
ad1816_halt_output(dev);
return 0;
}
static void ad1816_trigger (int dev, int state)
{
unsigned long flags;
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
DEBUGINFO (printk("ad1816: trigger called! (devc=%d,devc->base=%d\n", devc, devc->base));
/* mode may have changed */
save_flags (flags); /* make register access atomic */
cli ();
/* mask out modes not specified on open call */
state &= devc->audio_mode;
/* setup soundchip to new io-mode */
if (state & PCM_ENABLE_INPUT) {
/* enable capture */
outb(inb(devc->base+9)|0x01, devc->base+9);
} else {
/* disable capture */
outb(inb(devc->base+9)&~0x01, devc->base+9);
}
if (state & PCM_ENABLE_OUTPUT) {
/* enable playback */
outb(inb(devc->base+8)|0x01, devc->base+8);
/* unmute pcm output */
ad_write(devc, 4, ad_read(devc,4)&~0x8080);
} else {
/* mute pcm output */
ad_write(devc, 4, ad_read(devc,4)|0x8080);
/* disable capture */
outb(inb(devc->base+8)&~0x01, devc->base+8);
}
restore_flags (flags);
}
/* halt input & output */
static void ad1816_halt (int dev)
{
ad1816_halt_input(dev);
ad1816_halt_output(dev);
}
static void ad1816_reset (int dev)
{
ad1816_halt (dev);
}
/* set playback speed */
static int ad1816_set_speed (int dev, int arg)
{
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
if (arg == 0) {
return devc->speed;
}
/* range checking */
if (arg < 4000) {
arg = 4000;
}
if (arg > 55000) {
arg = 55000;
}
devc->speed = arg;
return devc->speed;
}
static unsigned int ad1816_set_bits (int dev, unsigned int arg)
{
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
static struct format_tbl {
int format;
unsigned char bits;
} format2bits[] = {
{ 0, 0 },
{ AFMT_MU_LAW, 1 },
{ AFMT_A_LAW, 3 },
{ AFMT_IMA_ADPCM, 0 },
{ AFMT_U8, 0 },
{ AFMT_S16_LE, 2 },
{ AFMT_S16_BE, 6 },
{ AFMT_S8, 0 },
{ AFMT_U16_LE, 0 },
{ AFMT_U16_BE, 0 }
};
int i, n = sizeof (format2bits) / sizeof (struct format_tbl);
/* return current format */
if (arg == 0)
return devc->audio_format;
devc->audio_format = arg;
/* search matching format bits */
for (i = 0; i < n; i++)
if (format2bits[i].format == arg) {
devc->format_bits = format2bits[i].bits;
devc->audio_format = arg;
return arg;
}
/* Still hanging here. Something must be terribly wrong */
devc->format_bits = 0;
return devc->audio_format = AFMT_U8;
}
static short ad1816_set_channels (int dev, short arg)
{
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
if (arg != 1 && arg != 2)
return devc->channels;
devc->channels = arg;
return arg;
}
/* open device */
static int ad1816_open (int dev, int mode)
{
ad1816_info *devc = NULL;
unsigned long flags;
/* is device number valid ? */
if (dev < 0 || dev >= num_audiodevs)
return -(ENXIO);
/* get device info of this dev */
devc = (ad1816_info *) audio_devs[dev]->devc;
/* make check if device already open atomic */
save_flags (flags);
cli ();
if (devc->opened) {
restore_flags (flags);
return -(EBUSY);
}
/* mark device as open */
devc->opened = 1;
devc->audio_mode = 0;
devc->speed = 8000;
devc->audio_format=AFMT_U8;
devc->channels=1;
ad1816_reset(devc->dev_no); /* halt all pending output */
restore_flags (flags);
return 0;
}
static void ad1816_close (int dev) /* close device */
{
unsigned long flags;
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
save_flags (flags);
cli ();
/* halt all pending output */
ad1816_reset(devc->dev_no);
devc->opened = 0;
devc->audio_mode = 0;
devc->speed = 8000;
devc->audio_format=AFMT_U8;
devc->format_bits = 0;
restore_flags (flags);
}
/* ------------------------------------------------------------------- */
/* Audio driver structure */
static struct audio_driver ad1816_audio_driver =
{
owner: THIS_MODULE,
open: ad1816_open,
close: ad1816_close,
output_block: ad1816_output_block,
start_input: ad1816_start_input,
prepare_for_input: ad1816_prepare_for_input,
prepare_for_output: ad1816_prepare_for_output,
halt_io: ad1816_halt,
halt_input: ad1816_halt_input,
halt_output: ad1816_halt_output,
trigger: ad1816_trigger,
set_speed: ad1816_set_speed,
set_bits: ad1816_set_bits,
set_channels: ad1816_set_channels,
};
/* ------------------------------------------------------------------- */
/* Interrupt handler */
static void ad1816_interrupt (int irq, void *dev_id, struct pt_regs *dummy)
{
unsigned char status;
ad1816_info *devc;
int dev;
unsigned long flags;
if (irq < 0 || irq > 15) {
printk(KERN_WARNING "ad1816: Got bogus interrupt %d\n", irq);
return;
}
dev = irq2dev[irq];
if (dev < 0 || dev >= num_audiodevs) {
printk(KERN_WARNING "ad1816: IRQ2AD1816-mapping failed for "
"irq %d device %d\n", irq,dev);
return;
}
devc = (ad1816_info *) audio_devs[dev]->devc;
save_flags(flags);
cli();
/* read interrupt register */
status = inb (devc->base+1);
/* Clear all interrupt */
outb (~status, devc->base+1);
DEBUGNOISE (printk("ad1816: Got interrupt subclass %d\n",status));
devc->irq_ok=1;
if (status == 0)
DEBUGWARN(printk ("ad1816: interrupt: Got interrupt, but no reason?\n"));
if (devc->opened && (devc->audio_mode & PCM_ENABLE_INPUT) && (status&64))
DMAbuf_inputintr (dev);
if (devc->opened && (devc->audio_mode & PCM_ENABLE_OUTPUT) && (status & 128))
DMAbuf_outputintr (dev, 1);
restore_flags(flags);
}
/* ------------------------------------------------------------------- */
/* Mixer stuff */
struct mixer_def {
unsigned int regno: 7;
unsigned int polarity:1; /* 0=normal, 1=reversed */
unsigned int bitpos:4;
unsigned int nbits:4;
};
static char mix_cvt[101] = {
0, 0, 3, 7,10,13,16,19,21,23,26,28,30,32,34,35,37,39,40,42,
43,45,46,47,49,50,51,52,53,55,56,57,58,59,60,61,62,63,64,65,
65,66,67,68,69,70,70,71,72,73,73,74,75,75,76,77,77,78,79,79,
80,81,81,82,82,83,84,84,85,85,86,86,87,87,88,88,89,89,90,90,
91,91,92,92,93,93,94,94,95,95,96,96,96,97,97,98,98,98,99,99,
100
};
typedef struct mixer_def mixer_ent;
/*
* Most of the mixer entries work in backwards. Setting the polarity field
* makes them to work correctly.
*
* The channel numbering used by individual soundcards is not fixed. Some
* cards have assigned different meanings for the AUX1, AUX2 and LINE inputs.
* The current version doesn't try to compensate this.
*/
#define MIX_ENT(name, reg_l, pola_l, pos_l, len_l, reg_r, pola_r, pos_r, len_r) \
{{reg_l, pola_l, pos_l, len_l}, {reg_r, pola_r, pos_r, len_r}}
mixer_ent mix_devices[SOUND_MIXER_NRDEVICES][2] = {
MIX_ENT(SOUND_MIXER_VOLUME, 14, 1, 8, 5, 14, 1, 0, 5),
MIX_ENT(SOUND_MIXER_BASS, 0, 0, 0, 0, 0, 0, 0, 0),
MIX_ENT(SOUND_MIXER_TREBLE, 0, 0, 0, 0, 0, 0, 0, 0),
MIX_ENT(SOUND_MIXER_SYNTH, 5, 1, 8, 6, 5, 1, 0, 6),
MIX_ENT(SOUND_MIXER_PCM, 4, 1, 8, 6, 4, 1, 0, 6),
MIX_ENT(SOUND_MIXER_SPEAKER, 0, 0, 0, 0, 0, 0, 0, 0),
MIX_ENT(SOUND_MIXER_LINE, 18, 1, 8, 5, 18, 1, 0, 5),
MIX_ENT(SOUND_MIXER_MIC, 19, 1, 8, 5, 19, 1, 0, 5),
MIX_ENT(SOUND_MIXER_CD, 15, 1, 8, 5, 15, 1, 0, 5),
MIX_ENT(SOUND_MIXER_IMIX, 0, 0, 0, 0, 0, 0, 0, 0),
MIX_ENT(SOUND_MIXER_ALTPCM, 0, 0, 0, 0, 0, 0, 0, 0),
MIX_ENT(SOUND_MIXER_RECLEV, 20, 0, 8, 4, 20, 0, 0, 4),
MIX_ENT(SOUND_MIXER_IGAIN, 0, 0, 0, 0, 0, 0, 0, 0),
MIX_ENT(SOUND_MIXER_OGAIN, 0, 0, 0, 0, 0, 0, 0, 0),
MIX_ENT(SOUND_MIXER_LINE1, 17, 1, 8, 5, 17, 1, 0, 5),
MIX_ENT(SOUND_MIXER_LINE2, 16, 1, 8, 5, 16, 1, 0, 5),
MIX_ENT(SOUND_MIXER_LINE3, 39, 0, 9, 4, 39, 1, 0, 5)
};
static unsigned short default_mixer_levels[SOUND_MIXER_NRDEVICES] =
{
0x4343, /* Master Volume */
0x3232, /* Bass */
0x3232, /* Treble */
0x0000, /* FM */
0x4343, /* PCM */
0x0000, /* PC Speaker */
0x0000, /* Ext Line */
0x0000, /* Mic */
0x0000, /* CD */
0x0000, /* Recording monitor */
0x0000, /* SB PCM */
0x0000, /* Recording level */
0x0000, /* Input gain */
0x0000, /* Output gain */
0x0000, /* Line1 */
0x0000, /* Line2 */
0x0000 /* Line3 (usually line in)*/
};
#define LEFT_CHN 0
#define RIGHT_CHN 1
static int
ad1816_set_recmask (ad1816_info * devc, int mask)
{
unsigned char recdev;
int i, n;
mask &= devc->supported_rec_devices;
n = 0;
/* Count selected device bits */
for (i = 0; i < 32; i++)
if (mask & (1 << i))
n++;
if (n == 0)
mask = SOUND_MASK_MIC;
else if (n != 1) { /* Too many devices selected */
/* Filter out active settings */
mask &= ~devc->recmask;
n = 0;
/* Count selected device bits */
for (i = 0; i < 32; i++)
if (mask & (1 << i))
n++;
if (n != 1)
mask = SOUND_MASK_MIC;
}
switch (mask) {
case SOUND_MASK_MIC:
recdev = 5;
break;
case SOUND_MASK_LINE:
recdev = 0;
break;
case SOUND_MASK_CD:
recdev = 2;
break;
case SOUND_MASK_LINE1:
recdev = 4;
break;
case SOUND_MASK_LINE2:
recdev = 3;
break;
case SOUND_MASK_VOLUME:
recdev = 1;
break;
default:
mask = SOUND_MASK_MIC;
recdev = 5;
}
recdev <<= 4;
ad_write (devc, 20,
(ad_read (devc, 20) & 0x8f8f) | recdev | (recdev<<8));
devc->recmask = mask;
return mask;
}
static void
change_bits (int *regval, int dev, int chn, int newval)
{
unsigned char mask;
int shift;
/* Reverse polarity*/
if (mix_devices[dev][chn].polarity == 1)
newval = 100 - newval;
mask = (1 << mix_devices[dev][chn].nbits) - 1;
shift = mix_devices[dev][chn].bitpos;
/* Scale it */
newval = (int) ((newval * mask) + 50) / 100;
/* Clear bits */
*regval &= ~(mask << shift);
/* Set new value */
*regval |= (newval & mask) << shift;
}
static int
ad1816_mixer_get (ad1816_info * devc, int dev)
{
DEBUGINFO(printk("ad1816: mixer_get called!\n"));
/* range check + supported mixer check */
if (dev < 0 || dev >= SOUND_MIXER_NRDEVICES )
return (-(EINVAL));
if (!((1 << dev) & devc->supported_devices))
return -(EINVAL);
return devc->levels[dev];
}
static int
ad1816_mixer_set (ad1816_info * devc, int dev, int value)
{
int left = value & 0x000000ff;
int right = (value & 0x0000ff00) >> 8;
int retvol;
int regoffs;
int val;
int valmute;
DEBUGINFO(printk("ad1816: mixer_set called!\n"));
if (dev < 0 || dev >= SOUND_MIXER_NRDEVICES )
return -(EINVAL);
if (left > 100)
left = 100;
if (left < 0)
left = 0;
if (right > 100)
right = 100;
if (right < 0)
right = 0;
/* Mono control */
if (mix_devices[dev][RIGHT_CHN].nbits == 0)
right = left;
retvol = left | (right << 8);
/* Scale it */
left = mix_cvt[left];
right = mix_cvt[right];
/* reject all mixers that are not supported */
if (!(devc->supported_devices & (1 << dev)))
return -(EINVAL);
/* sanity check */
if (mix_devices[dev][LEFT_CHN].nbits == 0)
return -(EINVAL);
/* keep precise volume internal */
devc->levels[dev] = retvol;
/* Set the left channel */
regoffs = mix_devices[dev][LEFT_CHN].regno;
val = ad_read (devc, regoffs);
change_bits (&val, dev, LEFT_CHN, left);
valmute=val;
/* Mute bit masking on some registers */
if ( regoffs==5 || regoffs==14 || regoffs==15 ||
regoffs==16 || regoffs==17 || regoffs==18 ||
regoffs==19 || regoffs==39) {
if (left==0)
valmute |= 0x8000;
else
valmute &= ~0x8000;
}
ad_write (devc, regoffs, valmute); /* mute */
/*
* Set the right channel
*/
/* Was just a mono channel */
if (mix_devices[dev][RIGHT_CHN].nbits == 0)
return retvol;
regoffs = mix_devices[dev][RIGHT_CHN].regno;
val = ad_read (devc, regoffs);
change_bits (&val, dev, RIGHT_CHN, right);
valmute=val;
if ( regoffs==5 || regoffs==14 || regoffs==15 ||
regoffs==16 || regoffs==17 || regoffs==18 ||
regoffs==19 || regoffs==39) {
if (right==0)
valmute |= 0x80;
else
valmute &= ~0x80;
}
ad_write (devc, regoffs, valmute); /* mute */
return retvol;
}
#define MIXER_DEVICES ( SOUND_MASK_VOLUME | \
SOUND_MASK_SYNTH | \
SOUND_MASK_PCM | \
SOUND_MASK_LINE | \
SOUND_MASK_LINE1 | \
SOUND_MASK_LINE2 | \
SOUND_MASK_LINE3 | \
SOUND_MASK_MIC | \
SOUND_MASK_CD | \
SOUND_MASK_RECLEV \
)
#define REC_DEVICES ( SOUND_MASK_LINE2 |\
SOUND_MASK_LINE |\
SOUND_MASK_LINE1 |\
SOUND_MASK_MIC |\
SOUND_MASK_CD |\
SOUND_MASK_VOLUME \
)
static void
ad1816_mixer_reset (ad1816_info * devc)
{
int i;
devc->supported_devices = MIXER_DEVICES;
devc->supported_rec_devices = REC_DEVICES;
for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
if (devc->supported_devices & (1 << i))
ad1816_mixer_set (devc, i, default_mixer_levels[i]);
ad1816_set_recmask (devc, SOUND_MASK_MIC);
}
static int
ad1816_mixer_ioctl (int dev, unsigned int cmd, caddr_t arg)
{
ad1816_info *devc = mixer_devs[dev]->devc;
int val;
DEBUGINFO(printk("ad1816: mixer_ioctl called!\n"));
/* Mixer ioctl */
if (((cmd >> 8) & 0xff) == 'M') {
/* set ioctl */
if (_SIOC_DIR (cmd) & _SIOC_WRITE) {
switch (cmd & 0xff){
case SOUND_MIXER_RECSRC:
if (get_user(val, (int *)arg))
return -EFAULT;
val=ad1816_set_recmask (devc, val);
return put_user(val, (int *)arg);
break;
default:
if (get_user(val, (int *)arg))
return -EFAULT;
if ((val=ad1816_mixer_set (devc, cmd & 0xff, val))<0)
return val;
else
return put_user(val, (int *)arg);
}
} else {
/* read ioctl */
switch (cmd & 0xff) {
case SOUND_MIXER_RECSRC:
val=devc->recmask;
return put_user(val, (int *)arg);
break;
case SOUND_MIXER_DEVMASK:
val=devc->supported_devices;
return put_user(val, (int *)arg);
break;
case SOUND_MIXER_STEREODEVS:
val=devc->supported_devices & ~(SOUND_MASK_SPEAKER | SOUND_MASK_IMIX);
return put_user(val, (int *)arg);
break;
case SOUND_MIXER_RECMASK:
val=devc->supported_rec_devices;
return put_user(val, (int *)arg);
break;
case SOUND_MIXER_CAPS:
val=SOUND_CAP_EXCL_INPUT;
return put_user(val, (int *)arg);
break;
default:
if ((val=ad1816_mixer_get (devc, cmd & 0xff))<0)
return val;
else
return put_user(val, (int *)arg);
}
}
} else
/* not for mixer */
return -(EINVAL);
}
/* ------------------------------------------------------------------- */
/* Mixer structure */
static struct mixer_operations ad1816_mixer_operations = {
owner: THIS_MODULE,
id: "AD1816",
name: "AD1816 Mixer",
ioctl: ad1816_mixer_ioctl
};
/* ------------------------------------------------------------------- */
/* stuff for card recognition, init and unloading */
/* replace with probe routine */
static int __init probe_ad1816 ( struct address_info *hw_config )
{
ad1816_info *devc = &dev_info[nr_ad1816_devs];
int io_base=hw_config->io_base;
int *osp=hw_config->osp;
int tmp;
printk(KERN_INFO "ad1816: AD1816 sounddriver "
"Copyright (C) 1998 by Thorsten Knabe\n");
printk(KERN_INFO "ad1816: io=0x%x, irq=%d, dma=%d, dma2=%d, "
"clockfreq=%d, options=%d isadmabug=%d\n",
hw_config->io_base,
hw_config->irq,
hw_config->dma,
hw_config->dma2,
ad1816_clockfreq,
options,
isa_dma_bridge_buggy);
if (!request_region(io_base, 16, "AD1816 Sound")) {
printk(KERN_WARNING "ad1816: I/O port 0x%03x not free\n",
io_base);
goto err;
}
DEBUGLOG(printk ("ad1816: detect(%x)\n", io_base));
if (nr_ad1816_devs >= MAX_AUDIO_DEV) {
printk(KERN_WARNING "ad1816: detect error - step 0\n");
goto out_release_region;
}
devc->base = io_base;
devc->irq_ok = 0;
devc->irq = 0;
devc->opened = 0;
devc->osp = osp;
/* base+0: bit 1 must be set but not 255 */
tmp=inb(devc->base);
if ( (tmp&0x80)==0 || tmp==255 ) {
DEBUGLOG (printk ("ad1816: Chip is not an AD1816 or chip is not active (Test 0)\n"));
goto out_release_region;
}
/* writes to ireg 8 are copied to ireg 9 */
ad_write(devc,8,12345);
if (ad_read(devc,9)!=12345) {
DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 1)\n"));
goto out_release_region;
}
/* writes to ireg 8 are copied to ireg 9 */
ad_write(devc,8,54321);
if (ad_read(devc,9)!=54321) {
DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 2)\n"));
goto out_release_region;
}
/* writes to ireg 10 are copied to ireg 11 */
ad_write(devc,10,54321);
if (ad_read(devc,11)!=54321) {
DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 3)\n"));
goto out_release_region;
}
/* writes to ireg 10 are copied to ireg 11 */
ad_write(devc,10,12345);
if (ad_read(devc,11)!=12345) {
DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 4)\n"));
goto out_release_region;
}
/* bit in base +1 cannot be set to 1 */
tmp=inb(devc->base+1);
outb(0xff,devc->base+1);
if (inb(devc->base+1)!=tmp) {
DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 5)\n"));
goto out_release_region;
}
DEBUGLOG (printk ("ad1816: detect() - Detected OK\n"));
DEBUGLOG (printk ("ad1816: AD1816 Version: %d\n",ad_read(devc,45)));
/* detection was successful */
return 1;
out_release_region:
release_region(io_base, 16);
/* detection was NOT successful */
err: return 0;
}
/* allocate resources from the kernel. If any allocation fails, free
all allocated resources and exit attach.
*/
static void __init attach_ad1816 (struct address_info *hw_config)
{
int my_dev;
char dev_name[100];
ad1816_info *devc = &dev_info[nr_ad1816_devs];
devc->base = hw_config->io_base;
/* disable all interrupts */
ad_write(devc,1,0);
/* Clear pending interrupts */
outb (0, devc->base+1);
/* allocate irq */
if (hw_config->irq < 0 || hw_config->irq > 15)
goto out_release_region;
if (request_irq(hw_config->irq, ad1816_interrupt,0,
"SoundPort", hw_config->osp) < 0) {
printk(KERN_WARNING "ad1816: IRQ in use\n");
goto out_release_region;
}
devc->irq=hw_config->irq;
/* DMA stuff */
if (sound_alloc_dma (hw_config->dma, "Sound System")) {
printk(KERN_WARNING "ad1816: Can't allocate DMA%d\n",
hw_config->dma);
goto out_free_irq;
}
devc->dma_playback=hw_config->dma;
if ( hw_config->dma2 != -1 && hw_config->dma2 != hw_config->dma) {
if (sound_alloc_dma(hw_config->dma2,
"Sound System (capture)")) {
printk(KERN_WARNING "ad1816: Can't allocate DMA%d\n",
hw_config->dma2);
goto out_free_dma;
}
devc->dma_capture=hw_config->dma2;
devc->audio_mode=DMA_AUTOMODE|DMA_DUPLEX;
} else {
devc->dma_capture=-1;
devc->audio_mode=DMA_AUTOMODE;
}
sprintf (dev_name,"AD1816 audio driver");
conf_printf2 (dev_name,
devc->base, devc->irq, hw_config->dma, hw_config->dma2);
/* register device */
if ((my_dev = sound_install_audiodrv (AUDIO_DRIVER_VERSION,
dev_name,
&ad1816_audio_driver,
sizeof (struct audio_driver),
devc->audio_mode,
ad_format_mask,
devc,
hw_config->dma,
hw_config->dma2)) < 0) {
printk(KERN_WARNING "ad1816: Can't install sound driver\n");
goto out_free_dma_2;
}
/* fill rest of structure with reasonable default values */
irq2dev[hw_config->irq] = devc->dev_no = my_dev;
devc->opened = 0;
devc->irq_ok = 0;
devc->osp = hw_config->osp;
nr_ad1816_devs++;
ad_write(devc,32,0x80f0); /* sound system mode */
if (options&1) {
ad_write(devc,33,0); /* disable all audiosources for dsp */
} else {
ad_write(devc,33,0x03f8); /* enable all audiosources for dsp */
}
ad_write(devc,4,0x8080); /* default values for volumes (muted)*/
ad_write(devc,5,0x8080);
ad_write(devc,6,0x8080);
ad_write(devc,7,0x8080);
ad_write(devc,15,0x8888);
ad_write(devc,16,0x8888);
ad_write(devc,17,0x8888);
ad_write(devc,18,0x8888);
ad_write(devc,19,0xc888); /* +20db mic active */
ad_write(devc,14,0x0000); /* Master volume unmuted */
ad_write(devc,39,0x009f); /* 3D effect on 0% phone out muted */
ad_write(devc,44,0x0080); /* everything on power, 3d enabled for d/a */
outb(0x10,devc->base+8); /* set dma mode */
outb(0x10,devc->base+9);
/* enable capture + playback interrupt */
ad_write(devc,1,0xc000);
/* set mixer defaults */
ad1816_mixer_reset (devc);
/* register mixer */
if ((audio_devs[my_dev]->mixer_dev=sound_install_mixer(
MIXER_DRIVER_VERSION,
dev_name,
&ad1816_mixer_operations,
sizeof (struct mixer_operations),
devc)) >= 0) {
audio_devs[my_dev]->min_fragment = 0;
}
out: return;
out_free_dma_2:
if (devc->dma_capture >= 0)
sound_free_dma(hw_config->dma2);
out_free_dma:
sound_free_dma(hw_config->dma);
out_free_irq:
free_irq(hw_config->irq,hw_config->osp);
out_release_region:
release_region(hw_config->io_base, 16);
goto out;
}
static void __exit unload_card(ad1816_info *devc)
{
int mixer, dev = 0;
if (devc != NULL) {
DEBUGLOG (printk("ad1816: Unloading card at base=%x\n",devc->base));
dev = devc->dev_no;
mixer = audio_devs[dev]->mixer_dev;
/* unreg mixer*/
if(mixer>=0) {
sound_unload_mixerdev(mixer);
}
sound_unload_audiodev(dev);
/* free dma channels */
if (devc->dma_capture>=0) {
sound_free_dma(devc->dma_capture);
}
/* card wont get added if resources could not be allocated
thus we need not ckeck if allocation was successful */
sound_free_dma (devc->dma_playback);
free_irq(devc->irq, devc->osp);
release_region (devc->base, 16);
DEBUGLOG (printk("ad1816: Unloading card at base=%x was successful\n",devc->base));
} else
printk(KERN_WARNING "ad1816: no device/card specified\n");
}
static struct address_info cfg;
static int __initdata io = -1;
static int __initdata irq = -1;
static int __initdata dma = -1;
static int __initdata dma2 = -1;
#if defined CONFIG_ISAPNP || defined CONFIG_ISAPNP_MODULE
struct pci_dev *ad1816_dev = NULL;
static int activated = 1;
static int isapnp = 1;
static int isapnpjump = 0;
MODULE_PARM(isapnp, "i");
MODULE_PARM(isapnpjump, "i");
#else
static int isapnp = 0;
#endif
MODULE_PARM(io,"i");
MODULE_PARM(irq,"i");
MODULE_PARM(dma,"i");
MODULE_PARM(dma2,"i");
MODULE_PARM(ad1816_clockfreq,"i");
MODULE_PARM(options,"i");
#if defined CONFIG_ISAPNP || defined CONFIG_ISAPNP_MODULE
static struct pci_dev *activate_dev(char *devname, char *resname, struct pci_dev *dev)
{
int err;
if(dev->active) {
activated = 0;
return(dev);
}
if((err = dev->activate(dev)) < 0) {
printk(KERN_ERR "ad1816: %s %s config failed (out of resources?)[%d]\n",
devname, resname, err);
dev->deactivate(dev);
return(NULL);
}
return(dev);
}
static struct pci_dev *ad1816_init_generic(struct pci_bus *bus, struct pci_dev *card,
struct address_info *hw_config)
{
if((ad1816_dev = isapnp_find_dev(bus, card->vendor, card->device, NULL))) {
ad1816_dev->prepare(ad1816_dev);
if((ad1816_dev = activate_dev("Analog Devices 1816(A)", "ad1816", ad1816_dev))) {
hw_config->io_base = ad1816_dev->resource[2].start;
hw_config->irq = ad1816_dev->irq_resource[0].start;
hw_config->dma = ad1816_dev->dma_resource[0].start;
hw_config->dma2 = ad1816_dev->dma_resource[1].start;
}
}
return(ad1816_dev);
}
struct isapnp_device_id isapnp_ad1816_list[] __initdata = {
{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
ISAPNP_VENDOR('A','D','S'), ISAPNP_FUNCTION(0x7150),
0 },
{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
ISAPNP_VENDOR('A','D','S'), ISAPNP_FUNCTION(0x7180),
0 },
{0}
};
MODULE_DEVICE_TABLE(isapnp, isapnp_ad1816_list);
static int __init ad1816_init_isapnp(struct address_info *hw_config,
struct pci_bus *bus, struct pci_dev *card, int slot)
{
char *busname = bus->name[0] ? bus->name : "Analog Devices AD1816a";
struct pci_dev *idev = NULL;
printk(KERN_INFO "ad1816: %s detected\n", busname);
/* Initialize this baby. */
if ((idev = ad1816_init_generic(bus, card, hw_config))) {
/* We got it. */
printk(KERN_NOTICE "ad1816: ISAPnP reports '%s' at i/o %#x, irq %d, dma %d, %d\n",
busname,
hw_config->io_base, hw_config->irq, hw_config->dma,
hw_config->dma2);
return 1;
} else
printk(KERN_INFO "ad1816: Failed to initialize %s\n", busname);
return 0;
}
/*
* Actually this routine will detect and configure only the first card with successful
* initialization. isapnpjump could be used to jump to a specific entry.
* Please always add entries at the end of the array.
* Should this be fixed? - azummo
*/
int __init ad1816_probe_isapnp(struct address_info *hw_config)
{
int i;
/* Count entries in isapnp_ad1816_list */
for (i = 0; isapnp_ad1816_list[i].vendor != 0; i++)
;
/* Check and adjust isapnpjump */
if( isapnpjump < 0 || isapnpjump > ( i - 1 ) ) {
printk(KERN_ERR "ad1816: Valid range for isapnpjump is 0-%d. Adjusted to 0.\n", i-1);
isapnpjump = 0;
}
for (i = isapnpjump; isapnp_ad1816_list[i].vendor != 0; i++) {
struct pci_dev *card = NULL;
while ((card = isapnp_find_dev(NULL, isapnp_ad1816_list[i].vendor,
isapnp_ad1816_list[i].function, card)))
if(ad1816_init_isapnp(hw_config, card->bus, card, i))
return 0;
}
return -ENODEV;
}
#endif
static int __init init_ad1816(void)
{
#if defined CONFIG_ISAPNP || defined CONFIG_ISAPNP_MODULE
if(isapnp && (ad1816_probe_isapnp(&cfg) < 0) ) {
printk(KERN_NOTICE "ad1816: No ISAPnP cards found, trying standard ones...\n");
isapnp = 0;
}
#endif
if( isapnp == 0) {
cfg.io_base = io;
cfg.irq = irq;
cfg.dma = dma;
cfg.dma2 = dma2;
}
if (cfg.io_base == -1 || cfg.irq == -1 || cfg.dma == -1 || cfg.dma2 == -1) {
printk(KERN_INFO "ad1816: dma, dma2, irq and io must be set.\n");
return -EINVAL;
}
if (probe_ad1816(&cfg) == 0) {
return -ENODEV;
}
attach_ad1816(&cfg);
return 0;
}
static void __exit cleanup_ad1816 (void)
{
int i;
ad1816_info *devc = NULL;
/* remove any soundcard */
for (i = 0; i < nr_ad1816_devs; i++) {
devc = &dev_info[i];
unload_card(devc);
}
nr_ad1816_devs=0;
#if defined CONFIG_ISAPNP || defined CONFIG_ISAPNP_MODULE
if(activated)
if(ad1816_dev)
ad1816_dev->deactivate(ad1816_dev);
#endif
}
module_init(init_ad1816);
module_exit(cleanup_ad1816);
#ifndef MODULE
static int __init setup_ad1816(char *str)
{
/* io, irq, dma, dma2 */
int ints[5];
str = get_options(str, ARRAY_SIZE(ints), ints);
io = ints[1];
irq = ints[2];
dma = ints[3];
dma2 = ints[4];
return 1;
}
__setup("ad1816=", setup_ad1816);
#endif
MODULE_LICENSE("GPL");
![[BACK]](/icons/back.gif){kind=icon}
Return to ad1816.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [Development] / linux-2.4-xfs / drivers / sound