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Commit 48087ea2 authored by Thorsten Knabe's avatar Thorsten Knabe Committed by Linus Torvalds
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[PATCH] sound/oss/ad1816.c update 

This fixes various problems with the AD1816 sound driver:

 - Compilation errors with CONFIG_PNP enabled fixed.
 - PNP specific code rewritten.
 - SMP fixes.
 - DMA resource handling fixes.
 - Other minor code cleanup.
parent 117b5e29
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Showing with 237 additions and 337 deletions
sound/oss/ad1816.c
View file @ 48087ea2
/*
*
* AD1816 lowlevel sound driver for Linux 2.2.0 and above
* AD1816 lowlevel sound driver for Linux 2.6.0 and above
*
* Copyright (C) 1998 by Thorsten Knabe <tek@rbg.informatik.tu-darmstadt.de>
* Copyright (C) 1998-2003 by Thorsten Knabe <linux@thorsten-knabe.de>
*
* Based on the CS4232/AD1848 driver Copyright (C) by Hannu Savolainen 1993-1996
*
*
* version: 1.3.1
* status: experimental
* date: 1999/4/18
* version: 1.5
* status: beta
* date: 2003/07/15
*
* Changes:
* Oleg Drokin: Some cleanup of load/unload functions. 1998/11/24
......@@ -30,8 +30,17 @@
* Christoph Hellwig: Added isapnp support 2000/03/15
*
* Arnaldo Carvalho de Melo: get rid of check_region 2001/10/07
*
* Thorsten Knabe: Compiling with CONFIG_PNP enabled
* works again. It is now possible to use more than one
* AD1816 sound card. Sample rate now may be changed during
* playback/capture. printk() uses log levels everywhere.
* SMP fixes. DMA handling fixes.
* Other minor code cleanup. 2003/07/15
*
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
......@@ -42,9 +51,6 @@
#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) {\
......@@ -63,21 +69,21 @@ typedef struct
int dma_playback;
int dma_capture;
int speed; /* open */
int opened; /* open */
int speed;
int channels;
int audio_format;
unsigned char format_bits;
int audio_mode;
int opened;
int recmask; /* setup */
unsigned char format_bits;
int supported_devices;
int supported_rec_devices;
unsigned short levels[SOUND_MIXER_NRDEVICES];
/* misc */
struct pnp_dev *pnpdev; /* configured via pnp */
int dev_no; /* this is the # in audio_devs and NOT
in ad1816_info */
int irq_ok;
int *osp;
spinlock_t lock;
} ad1816_info;
......@@ -85,12 +91,6 @@ 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;
......@@ -105,33 +105,22 @@ static ad1816_info dev_info[MAX_AUDIO_DEV];
static int ad_read (ad1816_info * devc, int reg)
{
unsigned long flags;
int result;
CHECK_FOR_POWER;
spin_lock_irqsave(&devc->lock,flags); /* make register access atomic */
outb ((unsigned char) (reg & 0x3f), devc->base+0);
result = inb(devc->base+2);
result+= inb(devc->base+3)<<8;
spin_unlock_irqrestore(&devc->lock,flags);
return (result);
}
static void ad_write (ad1816_info * devc, int reg, int data)
{
unsigned long flags;
CHECK_FOR_POWER;
spin_lock_irqsave(&devc->lock,flags); /* make register access atomic */
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);
spin_unlock_irqrestore(&devc->lock,flags);
}
/* ------------------------------------------------------------------- */
......@@ -144,7 +133,7 @@ static void ad1816_halt_input (int dev)
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
unsigned char buffer;
DEBUGINFO (printk("ad1816: halt_input called\n"));
DEBUGNOISE(printk(KERN_DEBUG "ad1816: halt_input called\n"));
spin_lock_irqsave(&devc->lock,flags);
......@@ -176,7 +165,7 @@ static void ad1816_halt_output (int dev)
unsigned char buffer;
DEBUGINFO (printk("ad1816: halt_output called!\n"));
DEBUGNOISE(printk(KERN_DEBUG "ad1816: halt_output called!\n"));
spin_lock_irqsave(&devc->lock,flags);
/* Mute pcm output */
......@@ -210,7 +199,7 @@ static void ad1816_output_block (int dev, unsigned long buf,
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));
DEBUGNOISE(printk(KERN_DEBUG "ad1816: output_block called buf=%ld count=%d flags=%d\n",buf,count,intrflag));
cnt = count/4 - 1;
......@@ -231,7 +220,7 @@ static void ad1816_start_input (int dev, unsigned long buf, int count,
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));
DEBUGNOISE(printk(KERN_DEBUG "ad1816: start_input called buf=%ld count=%d flags=%d\n",buf,count,intrflag));
cnt = count/4 - 1;
......@@ -239,7 +228,6 @@ static void ad1816_start_input (int dev, unsigned long buf, int count,
/* set transfer count */
ad_write (devc, 10, cnt & 0xffff);
devc->audio_mode |= PCM_ENABLE_INPUT;
spin_unlock_irqrestore(&devc->lock,flags);
}
......@@ -251,33 +239,19 @@ static int ad1816_prepare_for_input (int dev, int bsize, int bcount)
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));
DEBUGNOISE(printk(KERN_DEBUG "ad1816: prepare_for_input called: bsize=%d bcount=%d\n",bsize,bcount));
spin_lock_irqsave(&devc->lock,flags);
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 */
......@@ -297,7 +271,7 @@ static int ad1816_prepare_for_output (int dev, int bsize, int bcount)
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));
DEBUGNOISE(printk(KERN_DEBUG "ad1816: prepare_for_output called: bsize=%d bcount=%d\n",bsize,bcount));
spin_lock_irqsave(&devc->lock,flags);
......@@ -311,17 +285,6 @@ static int ad1816_prepare_for_output (int dev, int bsize, int bcount)
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 */
......@@ -340,7 +303,7 @@ 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));
DEBUGNOISE(printk(KERN_DEBUG "ad1816: trigger called! (devc=%d,devc->base=%d\n", devc, devc->base));
/* mode may have changed */
......@@ -388,10 +351,17 @@ static void ad1816_reset (int dev)
/* set playback speed */
static int ad1816_set_speed (int dev, int arg)
{
unsigned long flags;
unsigned int freq;
int ret;
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
spin_lock_irqsave(&devc->lock, flags);
if (arg == 0) {
return devc->speed;
ret = devc->speed;
spin_unlock_irqrestore(&devc->lock, flags);
return ret;
}
/* range checking */
if (arg < 4000) {
......@@ -400,14 +370,23 @@ static int ad1816_set_speed (int dev, int arg)
if (arg > 55000) {
arg = 55000;
}
devc->speed = arg;
return devc->speed;
/* change speed during playback */
freq=((unsigned int)devc->speed*33000)/ad1816_clockfreq;
/* write playback/capture speeds */
ad_write (devc, 2, freq & 0xffff);
ad_write (devc, 3, freq & 0xffff);
ret = devc->speed;
spin_unlock_irqrestore(&devc->lock, flags);
return ret;
}
static unsigned int ad1816_set_bits (int dev, unsigned int arg)
{
unsigned long flags;
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
static struct format_tbl {
......@@ -428,10 +407,13 @@ static unsigned int ad1816_set_bits (int dev, unsigned int arg)
int i, n = sizeof (format2bits) / sizeof (struct format_tbl);
spin_lock_irqsave(&devc->lock, flags);
/* return current format */
if (arg == 0)
return devc->audio_format;
if (arg == 0) {
arg = devc->audio_format;
spin_unlock_irqrestore(&devc->lock, flags);
return arg;
}
devc->audio_format = arg;
/* search matching format bits */
......@@ -439,12 +421,15 @@ static unsigned int ad1816_set_bits (int dev, unsigned int arg)
if (format2bits[i].format == arg) {
devc->format_bits = format2bits[i].bits;
devc->audio_format = arg;
spin_unlock_irqrestore(&devc->lock, flags);
return arg;
}
/* Still hanging here. Something must be terribly wrong */
devc->format_bits = 0;
return devc->audio_format = AFMT_U8;
devc->audio_format = AFMT_U8;
spin_unlock_irqrestore(&devc->lock, flags);
return(AFMT_U8);
}
static short ad1816_set_channels (int dev, short arg)
......@@ -486,9 +471,8 @@ static int ad1816_open (int dev, int mode)
devc->speed = 8000;
devc->audio_format=AFMT_U8;
devc->channels=1;
ad1816_reset(devc->dev_no); /* halt all pending output */
spin_unlock_irqrestore(&devc->lock,flags);
ad1816_reset(devc->dev_no); /* halt all pending output */
return 0;
}
......@@ -497,17 +481,15 @@ static void ad1816_close (int dev) /* close device */
unsigned long flags;
ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc;
spin_lock_irqsave(&devc->lock,flags);
/* halt all pending output */
ad1816_reset(devc->dev_no);
spin_lock_irqsave(&devc->lock,flags);
devc->opened = 0;
devc->audio_mode = 0;
devc->speed = 8000;
devc->audio_format=AFMT_U8;
devc->format_bits = 0;
spin_unlock_irqrestore(&devc->lock,flags);
}
......@@ -543,25 +525,13 @@ static struct audio_driver ad1816_audio_driver =
static irqreturn_t ad1816_interrupt (int irq, void *dev_id, struct pt_regs *dummy)
{
unsigned char status;
ad1816_info *devc;
int dev;
ad1816_info *devc = (ad1816_info *)dev_id;
if (irq < 0 || irq > 15) {
printk(KERN_WARNING "ad1816: Got bogus interrupt %d\n", irq);
return IRQ_NONE;
}
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 IRQ_NONE;
}
devc = (ad1816_info *) audio_devs[dev]->devc;
spin_lock(&devc->lock);
/* read interrupt register */
......@@ -569,18 +539,19 @@ static irqreturn_t ad1816_interrupt (int irq, void *dev_id, struct pt_regs *dumm
/* Clear all interrupt */
outb (~status, devc->base+1);
DEBUGNOISE (printk("ad1816: Got interrupt subclass %d\n",status));
devc->irq_ok=1;
DEBUGNOISE(printk(KERN_DEBUG "ad1816: Got interrupt subclass %d\n",status));
if (status == 0)
DEBUGWARN(printk ("ad1816: interrupt: Got interrupt, but no reason?\n"));
if (status == 0) {
DEBUGNOISE(printk(KERN_DEBUG "ad1816: interrupt: Got interrupt, but no source.\n"));
spin_unlock(&devc->lock);
return IRQ_NONE;
}
if (devc->opened && (devc->audio_mode & PCM_ENABLE_INPUT) && (status&64))
DMAbuf_inputintr (dev);
DMAbuf_inputintr (devc->dev_no);
if (devc->opened && (devc->audio_mode & PCM_ENABLE_OUTPUT) && (status & 128))
DMAbuf_outputintr (dev, 1);
DMAbuf_outputintr (devc->dev_no, 1);
spin_unlock(&devc->lock);
return IRQ_HANDLED;
......@@ -671,9 +642,11 @@ static unsigned short default_mixer_levels[SOUND_MIXER_NRDEVICES] =
static int
ad1816_set_recmask (ad1816_info * devc, int mask)
{
unsigned long flags;
unsigned char recdev;
int i, n;
spin_lock_irqsave(&devc->lock, flags);
mask &= devc->supported_rec_devices;
n = 0;
......@@ -733,6 +706,7 @@ ad1816_set_recmask (ad1816_info * devc, int mask)
(ad_read (devc, 20) & 0x8f8f) | recdev | (recdev<<8));
devc->recmask = mask;
spin_unlock_irqrestore(&devc->lock, flags);
return mask;
}
......@@ -760,7 +734,7 @@ change_bits (int *regval, int dev, int chn, int newval)
static int
ad1816_mixer_get (ad1816_info * devc, int dev)
{
DEBUGINFO(printk("ad1816: mixer_get called!\n"));
DEBUGNOISE(printk(KERN_DEBUG "ad1816: mixer_get called!\n"));
/* range check + supported mixer check */
if (dev < 0 || dev >= SOUND_MIXER_NRDEVICES )
......@@ -781,8 +755,9 @@ ad1816_mixer_set (ad1816_info * devc, int dev, int value)
int regoffs;
int val;
int valmute;
unsigned long flags;
DEBUGINFO(printk("ad1816: mixer_set called!\n"));
DEBUGNOISE(printk(KERN_DEBUG "ad1816: mixer_set called!\n"));
if (dev < 0 || dev >= SOUND_MIXER_NRDEVICES )
return -(EINVAL);
......@@ -813,6 +788,7 @@ ad1816_mixer_set (ad1816_info * devc, int dev, int value)
/* sanity check */
if (mix_devices[dev][LEFT_CHN].nbits == 0)
return -(EINVAL);
spin_lock_irqsave(&devc->lock, flags);
/* keep precise volume internal */
devc->levels[dev] = retvol;
......@@ -840,8 +816,10 @@ ad1816_mixer_set (ad1816_info * devc, int dev, int value)
*/
/* Was just a mono channel */
if (mix_devices[dev][RIGHT_CHN].nbits == 0)
if (mix_devices[dev][RIGHT_CHN].nbits == 0) {
spin_unlock_irqrestore(&devc->lock, flags);
return retvol;
}
regoffs = mix_devices[dev][RIGHT_CHN].regno;
val = ad_read (devc, regoffs);
......@@ -857,7 +835,7 @@ ad1816_mixer_set (ad1816_info * devc, int dev, int value)
valmute &= ~0x80;
}
ad_write (devc, regoffs, valmute); /* mute */
spin_unlock_irqrestore(&devc->lock, flags);
return retvol;
}
......@@ -901,7 +879,7 @@ 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"));
DEBUGNOISE(printk(KERN_DEBUG "ad1816: mixer_ioctl called!\n"));
/* Mixer ioctl */
if (((cmd >> 8) & 0xff) == 'M') {
......@@ -980,83 +958,91 @@ static struct mixer_operations ad1816_mixer_operations = {
/* ------------------------------------------------------------------- */
/* stuff for card recognition, init and unloading */
/* stuff for card recognition, init and unloading PNP ...*/
/* replace with probe routine */
static int __init probe_ad1816 ( struct address_info *hw_config )
/* check if AD1816 present at specified hw_config and register device with OS
* return 1 if initialization was successful, 0 otherwise
*/
static int __init ad1816_init_card (struct address_info *hw_config,
struct pnp_dev *pnp)
{
ad1816_info *devc = &dev_info[nr_ad1816_devs];
int io_base=hw_config->io_base;
int *osp=hw_config->osp;
ad1816_info *devc = NULL;
int tmp;
int oss_devno = -1;
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",
printk(KERN_INFO "ad1816: initializing card: io=0x%x, irq=%d, dma=%d, "
"dma2=%d, clockfreq=%d, options=%d isadmabug=%d "
"%s\n",
hw_config->io_base,
hw_config->irq,
hw_config->dma,
hw_config->dma2,
ad1816_clockfreq,
options,
isa_dma_bridge_buggy);
isa_dma_bridge_buggy,
pnp?"(PNP)":"");
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));
/* ad1816_info structure remaining ? */
if (nr_ad1816_devs >= MAX_AUDIO_DEV) {
printk(KERN_WARNING "ad1816: detect error - step 0\n");
goto out_release_region;
printk(KERN_WARNING "ad1816: no more ad1816_info structures "
"left\n");
goto out;
}
devc->base = io_base;
devc->irq_ok = 0;
devc->irq = 0;
devc = &dev_info[nr_ad1816_devs];
devc->base = hw_config->io_base;
devc->irq = hw_config->irq;
devc->dma_playback=hw_config->dma;
devc->dma_capture=hw_config->dma2;
devc->opened = 0;
devc->osp = osp;
devc->pnpdev = pnp;
spin_lock_init(&devc->lock);
if (!request_region(devc->base, 16, "AD1816 Sound")) {
printk(KERN_WARNING "ad1816: I/O port 0x%03x not free\n",
devc->base);
goto out;
}
printk(KERN_INFO "ad1816: Examining AD1816 at address 0x%03x.\n",
devc->base);
/* tests for ad1816 */
/* 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"));
printk (KERN_INFO "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"));
printk(KERN_INFO "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"));
printk(KERN_INFO "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"));
printk (KERN_INFO "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"));
printk (KERN_INFO "ad1816: Chip is not an AD1816 (Test 4)\n");
goto out_release_region;
}
......@@ -1064,35 +1050,12 @@ static int __init probe_ad1816 ( struct address_info *hw_config )
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"));
printk(KERN_INFO "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;
printk(KERN_INFO "ad1816: AD1816 (version %d) successfully detected!\n",
ad_read(devc,45));
/* disable all interrupts */
ad_write(devc,1,0);
......@@ -1101,62 +1064,54 @@ static void __init attach_ad1816 (struct address_info *hw_config)
outb (0, devc->base+1);
/* allocate irq */
if (hw_config->irq < 0 || hw_config->irq > 15)
if (devc->irq < 0 || devc->irq > 15)
goto out_release_region;
if (request_irq(hw_config->irq, ad1816_interrupt,0,
"SoundPort", hw_config->osp) < 0) {
if (request_irq(devc->irq, ad1816_interrupt,0,
"SoundPort", devc) < 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")) {
if (sound_alloc_dma (devc->dma_playback, "Sound System")) {
printk(KERN_WARNING "ad1816: Can't allocate DMA%d\n",
hw_config->dma);
devc->dma_playback);
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,
if ( devc->dma_capture >= 0 &&
devc->dma_capture != devc->dma_playback) {
if (sound_alloc_dma(devc->dma_capture,
"Sound System (capture)")) {
printk(KERN_WARNING "ad1816: Can't allocate DMA%d\n",
hw_config->dma2);
devc->dma_capture);
goto out_free_dma;
}
devc->dma_capture=hw_config->dma2;
devc->audio_mode=DMA_AUTOMODE|DMA_DUPLEX;
} else {
devc->dma_capture=-1;
printk(KERN_WARNING "ad1816: Only one DMA channel "
"available/configured. No duplex operation possible\n");
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);
conf_printf2 ("AD1816 audio driver",
devc->base, devc->irq, devc->dma_playback,
devc->dma_capture);
/* register device */
if ((my_dev = sound_install_audiodrv (AUDIO_DRIVER_VERSION,
dev_name,
if ((oss_devno = sound_install_audiodrv (AUDIO_DRIVER_VERSION,
"AD1816 audio driver",
&ad1816_audio_driver,
sizeof (struct audio_driver),
devc->audio_mode,
ad_format_mask,
devc,
hw_config->dma,
hw_config->dma2)) < 0) {
devc->dma_playback,
devc->dma_capture)) < 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) {
......@@ -1186,25 +1141,30 @@ static void __init attach_ad1816 (struct address_info *hw_config)
ad1816_mixer_reset (devc);
/* register mixer */
if ((audio_devs[my_dev]->mixer_dev=sound_install_mixer(
if ((audio_devs[oss_devno]->mixer_dev=sound_install_mixer(
MIXER_DRIVER_VERSION,
dev_name,
"AD1816 audio driver",
&ad1816_mixer_operations,
sizeof (struct mixer_operations),
devc)) >= 0) {
audio_devs[my_dev]->min_fragment = 0;
devc)) < 0) {
printk(KERN_WARNING "Can't install mixer\n");
}
out: return;
/* make ad1816_info active */
nr_ad1816_devs++;
printk(KERN_INFO "ad1816: card successfully installed!\n");
return 1;
/* error handling */
out_free_dma_2:
if (devc->dma_capture >= 0)
sound_free_dma(hw_config->dma2);
if (devc->dma_capture >= 0 && devc->dma_capture != devc->dma_playback)
sound_free_dma(devc->dma_capture);
out_free_dma:
sound_free_dma(hw_config->dma);
sound_free_dma(devc->dma_playback);
out_free_irq:
free_irq(hw_config->irq,hw_config->osp);
free_irq(devc->irq, devc);
out_release_region:
release_region(hw_config->io_base, 16);
goto out;
release_region(devc->base, 16);
out:
return 0;
}
static void __exit unload_card(ad1816_info *devc)
......@@ -1212,7 +1172,7 @@ 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));
printk("ad1816: Unloading card at address 0x%03x\n",devc->base);
dev = devc->dev_no;
mixer = audio_devs[dev]->mixer_dev;
......@@ -1221,45 +1181,41 @@ static void __exit unload_card(ad1816_info *devc)
if(mixer>=0) {
sound_unload_mixerdev(mixer);
}
/* unreg audiodev */
sound_unload_audiodev(dev);
/* free dma channels */
if (devc->dma_capture>=0) {
if (devc->dma_capture>=0 &&
devc->dma_capture != devc->dma_playback) {
sound_free_dma(devc->dma_capture);
}
/* card won't 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);
/* free irq */
free_irq(devc->irq, devc);
/* free io */
release_region (devc->base, 16);
DEBUGLOG (printk("ad1816: Unloading card at base=%x was successful\n",devc->base));
#ifdef __ISAPNP__
if (devc->pnpdev) {
pnp_disable_dev(devc->pnpdev);
pnp_device_detach(devc->pnpdev);
}
#endif
} 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;
#ifdef __ISAPNP__
struct pci_dev *ad1816_dev = NULL;
static int activated = 1;
/* use isapnp for configuration */
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");
......@@ -1270,51 +1226,6 @@ MODULE_PARM(ad1816_clockfreq,"i");
MODULE_PARM(options,"i");
#ifdef __ISAPNP__
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);
}
static struct ad1816_data {
struct pci_dev * (*initfunc)(struct pci_bus*, struct pci_dev *, struct address_info *);
char *name;
} ad1816_pnp_data[] __initdata = {
{ &ad1816_init_generic, "Analog Devices 1815" },
{ &ad1816_init_generic, "Analog Devices 1816A" }
};
static struct {
unsigned short card_vendor, card_device;
unsigned short vendor;
......@@ -1323,107 +1234,101 @@ static struct {
} isapnp_ad1816_list[] __initdata = {
{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
ISAPNP_VENDOR('A','D','S'), ISAPNP_FUNCTION(0x7150),
&ad1816_pnp_data[0] },
0 },
{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
ISAPNP_VENDOR('A','D','S'), ISAPNP_FUNCTION(0x7180),
&ad1816_pnp_data[1] },
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)
void __init ad1816_config_pnp_card(struct pnp_card *card, unsigned short vendor,
unsigned short function)
{
struct pci_dev *idev = NULL;
/* You missed the init func? That's bad. */
if(isapnp_ad1816_list[slot].data->initfunc) {
char *busname = bus->name[0] ? bus->name : isapnp_ad1816_list[slot].data->name;
printk(KERN_INFO "ad1816: %s detected\n", busname);
/* Initialize this baby. */
if((idev = isapnp_ad1816_list[slot].data->initfunc(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);
} else
printk(KERN_ERR "ad1816: Bad entry in ad1816.c PnP table\n");
return 0;
struct address_info cfg;
struct pnp_dev *card_dev = pnp_find_dev(card, vendor, function, NULL);
if (!card_dev) return;
if (pnp_device_attach(card_dev) < 0) {
printk(KERN_WARNING "ad1816: Failed to attach PnP device\n");
return;
}
if (pnp_activate_dev(card_dev) < 0) {
printk(KERN_WARNING "ad1816: Failed to activate PnP device\n");
pnp_device_detach(card_dev);
return;
}
cfg.io_base = pnp_port_start(card_dev, 2);
cfg.irq = pnp_irq(card_dev, 0);
cfg.dma = pnp_irq(card_dev, 0);
cfg.dma2 = pnp_irq(card_dev, 1);
if (!ad1816_init_card(&cfg, card_dev)) {
pnp_disable_dev(card_dev);
pnp_device_detach(card_dev);
}
}
/*
* 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)
void __init ad1816_config_pnp_cards(void)
{
int nr_pnp_cfg;
int i;
/* Count entries in isapnp_ad1816_list */
for (i = 0; isapnp_ad1816_list[i].vendor != 0; i++)
;
for (nr_pnp_cfg = 0; isapnp_ad1816_list[nr_pnp_cfg].card_vendor != 0;
nr_pnp_cfg++);
/* 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);
if( isapnpjump < 0 || isapnpjump >= nr_pnp_cfg) {
printk(KERN_WARNING
"ad1816: Valid range for isapnpjump is 0-%d. "
"Adjusted to 0.\n", nr_pnp_cfg-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;
for (i = isapnpjump; isapnp_ad1816_list[i].card_vendor != 0; i++) {
struct pnp_card *card = NULL;
/* iterate over all pnp cards */
while ((card = pnp_find_card(isapnp_ad1816_list[i].card_vendor,
isapnp_ad1816_list[i].card_device, card)))
ad1816_config_pnp_card(card,
isapnp_ad1816_list[i].vendor,
isapnp_ad1816_list[i].function);
}
return -ENODEV;
}
#endif
/* module initialization */
static int __init init_ad1816(void)
{
#ifdef __ISAPNP__
if(isapnp && (ad1816_probe_isapnp(&cfg) < 0) ) {
printk(KERN_NOTICE "ad1816: No ISAPnP cards found, trying standard ones...\n");
isapnp = 0;
}
printk(KERN_INFO "ad1816: AD1816 sounddriver "
"Copyright (C) 1998-2003 by Thorsten Knabe and "
"others\n");
#ifdef AD1816_CLOCK
/* set ad1816_clockfreq if set during compilation */
ad1816_clockfreq=AD1816_CLOCK;
#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 (ad1816_clockfreq<5000 || ad1816_clockfreq>100000) {
ad1816_clockfreq=33000;
}
if (probe_ad1816(&cfg) == 0) {
return -ENODEV;
#ifdef __ISAPNP__
/* configure PnP cards */
if(isapnp) ad1816_config_pnp_cards();
#endif
/* configure card by module params */
if (io != -1 && irq != -1 && dma != -1) {
struct address_info cfg;
cfg.io_base = io;
cfg.irq = irq;
cfg.dma = dma;
cfg.dma2 = dma2;
ad1816_init_card(&cfg, NULL);
}
attach_ad1816(&cfg);
if (nr_ad1816_devs <= 0)
return -ENODEV;
return 0;
}
/* module cleanup */
static void __exit cleanup_ad1816 (void)
{
int i;
......@@ -1435,18 +1340,14 @@ static void __exit cleanup_ad1816 (void)
unload_card(devc);
}
nr_ad1816_devs=0;
#ifdef __ISAPNP__
if(activated)
if(ad1816_dev)
ad1816_dev->deactivate(ad1816_dev);
#endif
printk(KERN_INFO "ad1816: driver unloaded!\n");
}
module_init(init_ad1816);
module_exit(cleanup_ad1816);
#ifndef MODULE
/* kernel command line parameter evaluation */
static int __init setup_ad1816(char *str)
{
/* io, irq, dma, dma2 */
......@@ -1458,7 +1359,6 @@ static int __init setup_ad1816(char *str)
irq = ints[2];
dma = ints[3];
dma2 = ints[4];
return 1;
}
......
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