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/*
* sound/dev_table.c
*
* Device call tables.
*
* Copyright by Hannu Savolainen 1993
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer. 2.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#define _DEV_TABLE_C_
#include <i386/isa/sound/sound_config.h>
#if NSND > 0
int sound_started = 0;
int sndtable_get_cardcount(void);
int snd_find_driver(int type);
static void sndtable_init(void);
int sndtable_probe(int unit, struct address_info * hw_config);
int sndtable_init_card(int unit, struct address_info * hw_config);
static void start_services(void);
static void start_cards(void);
struct address_info *sound_getconf(int card_type);
int
snd_find_driver(int type)
{
int i, n = num_sound_drivers;
for (i = 0; i < n; i++)
if (sound_drivers[i].card_type == type)
return i;
return -1;
}
static void
start_services()
{
int soundcards_installed;
if (!(soundcards_installed = sndtable_get_cardcount()))
return ; /* No cards detected */
#ifdef CONFIG_AUDIO
if (num_audiodevs) /* Audio devices present */
DMAbuf_init();
#endif
#ifdef CONFIG_MIDI
if (num_midis)
/* MIDIbuf_init(0) */;
#endif
#ifdef CONFIG_SEQUENCER
if (num_midis + num_synths)
sequencer_init();
#endif
}
static void
start_cards()
{
int drv, i, n = num_sound_cards;
struct card_info *ci = snd_installed_cards ;
sound_started = 1;
if (trace_init)
printf("Sound initialization started\n");
/*
* Check the number of cards actually defined in the table
*/
for (i = 0; i < n && snd_installed_cards[i].card_type; i++)
num_sound_cards = i + 1;
for (i = 0; i < n && ci->card_type; ci++, i++)
if (ci->enabled) {
if ((drv = snd_find_driver(ci->card_type)) == -1) {
ci->enabled = 0; /* Mark as not detected */
continue;
}
ci->config.card_subtype = sound_drivers[drv].card_subtype;
if (sound_drivers[drv].probe(&(ci->config)))
sound_drivers[drv].attach(&(ci->config));
else
ci->enabled = 0; /* Mark as not detected */
}
if (trace_init)
printf("Sound initialization complete\n");
}
static void
sndtable_init()
{
start_cards();
}
/*
* sndtable_probe probes a specific device. unit is the voxware unit number.
*/
int
sndtable_probe(int unit, struct address_info * hw_config)
{
int i, sel = -1, n = num_sound_cards;
struct card_info *ci = snd_installed_cards ;
DDB(printf("-- sndtable_probe(%d)\n", unit));
/*
* for some reason unit 0 always succeeds ?
*/
if (!unit)
return TRUE;
sound_started = 1;
for (i=0; i<n && sel== -1 && ci->card_type; ci++, i++)
if ( (ci->enabled) && (ci->card_type == unit) ) {
/* DDB(printf("-- found card %d\n", i) ); */
sel = i; /* and break */
}
/*
* not found. Creates a new entry in the table for this unit.
*/
if (sel == -1 && num_sound_cards < max_sound_cards) {
int i;
i = sel = (num_sound_cards++);
DDB(printf("-- installing card %d\n", i) );
ci = &snd_installed_cards[sel] ;
ci->card_type = unit;
ci->enabled = 1;
}
/* DDB(printf("-- installed card %d\n", sel) ); */
if (sel != -1) {
int drv;
ci->config.io_base = hw_config->io_base;
ci->config.irq = hw_config->irq;
ci->config.dma = hw_config->dma;
ci->config.dma2 = hw_config->dma2;
ci->config.name = hw_config->name;
ci->config.always_detect = hw_config->always_detect;
ci->config.card_subtype = hw_config->card_subtype;
ci->config.osp = hw_config->osp;
if ((drv = snd_find_driver(ci->card_type)) == -1) {
ci->enabled = 0;
DDB(printf("Failed to find driver\n"));
return FALSE;
}
DDB(printf("-- Driver name '%s' probe 0x%08x\n",
sound_drivers[drv].name, sound_drivers[drv].probe));
hw_config->card_subtype =
ci->config.card_subtype = sound_drivers[drv].card_subtype;
if (sound_drivers[drv].probe(hw_config)) {
DDB(printf("-- Hardware probed OK\n"));
return TRUE;
}
DDB(printf("-- Failed to find hardware\n"));
ci->enabled = 0; /* mark as not detected */
return FALSE;
}
return FALSE;
}
int
sndtable_init_card(int unit, struct address_info * hw_config)
{
int i, n = num_sound_cards;
struct card_info *ci = snd_installed_cards ;
DDB(printf("sndtable_init_card(%d) entered\n", unit));
if (!unit) {
sndtable_init() ;
return TRUE;
}
for (i = 0; i < n && ci->card_type; ci++, i++)
if (ci->card_type == unit) {
int drv;
ci->config.io_base = hw_config->io_base;
ci->config.irq = hw_config->irq;
ci->config.dma = hw_config->dma;
ci->config.dma2 = hw_config->dma2;
ci->config.name = hw_config->name;
ci->config.always_detect = hw_config->always_detect;
ci->config.card_subtype = hw_config->card_subtype;
ci->config.osp = hw_config->osp;
if ((drv = snd_find_driver(ci->card_type)) == -1)
ci->enabled = 0; /* Mark not fnd */
else {
DDB(printf("Located card - calling attach routine\n"));
sound_drivers[drv].attach(hw_config) ;
DDB(printf("attach routine finished\n"));
}
start_services();
return TRUE;
}
DDB(printf("sndtable_init_card: No card defined with type=%d, num cards: %d\n",
unit, num_sound_cards));
return FALSE;
}
int
sndtable_get_cardcount(void)
{
return num_audiodevs + num_mixers + num_synths + num_midis;
}
struct address_info *
sound_getconf(int card_type)
{
int j, ptr = -1, n = num_sound_cards;
for (j = 0; j < n && ptr == -1 && snd_installed_cards[j].card_type; j++)
if (snd_installed_cards[j].card_type == card_type)
ptr = j;
if (ptr == -1)
return (struct address_info *) NULL;
return &snd_installed_cards[ptr].config;
}
#endif
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