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/*
* sound/sb_card.c
*
* Detection routine for the Sound Blaster cards.
*/
/*
* Copyright (C) by Hannu Savolainen 1993-1996
*
* USS/Lite for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
* Version 2 (June 1991). See the "COPYING" file distributed with this software
* for more info.
*/
#include <linux/config.h>
#include <linux/mca.h>
#include "sound_config.h"
#if defined(CONFIG_SBDSP)
#include "sb_mixer.h"
#include "sb.h"
void
attach_sb_card (struct address_info *hw_config)
{
#if defined(CONFIG_AUDIO) || defined(CONFIG_MIDI)
sb_dsp_init (hw_config);
#endif
}
int
probe_sb (struct address_info *hw_config)
{
#ifdef CONFIG_MCA
/* MCA code added by ZP Gu (zpg@castle.net) */
if (MCA_bus) { /* no multiple REPLY card probing */
int slot;
u_char pos2, pos3, pos4;
slot = mca_find_adapter( 0x5138, 0 );
if( slot == MCA_NOTFOUND ) {
slot = mca_find_adapter( 0x5137, 0 );
if (slot != MCA_NOTFOUND)
mca_set_adapter_name( slot, "REPLY SB16 & SCSI Adapter" );
} else {
mca_set_adapter_name( slot, "REPLY SB16 Adapter" );
}
if (slot != MCA_NOTFOUND) {
pos2 = mca_read_stored_pos( slot, 2 );
pos3 = mca_read_stored_pos( slot, 3 );
pos4 = mca_read_stored_pos( slot, 4 );
if (pos2 & 0x4) { /* enabled? */
static unsigned short irq[] = { 0, 5, 7, 10 };
/*
static unsigned short midiaddr[] = {0, 0x330, 0, 0x300 };
*/
hw_config->io_base = 0x220 + 0x20 * (pos2 >> 6);
hw_config->irq = irq[(pos4 >> 5) & 0x3];
hw_config->dma = pos3 & 0xf;
/* Reply ADF wrong on High DMA, pos[1] should start w/ 00 */
hw_config->dma2 = (pos3 >> 4) & 0x3;
if (hw_config->dma2 == 0)
hw_config->dma2 = hw_config->dma;
else
hw_config->dma2 += 4;
/*
hw_config->driver_use_2 = midiaddr[(pos2 >> 3) & 0x3];
*/
printk("SB: Reply MCA SB at slot=%d \
iobase=0x%x irq=%d lo_dma=%d hi_dma=%d\n",
slot+1,
hw_config->io_base, hw_config->irq,
hw_config->dma, hw_config->dma2);
} else {
printk ("Reply SB Base I/O address disabled\n");
}
}
}
#endif
if (check_region (hw_config->io_base, 16))
{
printk ("\n\nsb_dsp.c: I/O port %x already in use\n\n",
hw_config->io_base);
return 0;
}
return sb_dsp_detect (hw_config);
}
void
unload_sb (struct address_info *hw_config)
{
sb_dsp_unload (hw_config);
}
#endif
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