static int __init snd_gusclassic_detect(snd_gus_card_t * gus)
{
snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
#ifdef CONFIG_SND_DEBUG_DETECT
{
unsigned char d;
if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
snd_printk("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
return -ENODEV;
}
}
#else
if ((snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET) & 0x07) != 0)
return -ENODEV;
#endif
udelay(160);
snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */
udelay(160);
#ifdef CONFIG_SND_DEBUG_DETECT
{
unsigned char d;
if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
snd_printk("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
return -ENODEV;
}
}
#else
if ((snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET) & 0x07) != 1)
return -ENODEV;
#endif
return 0;
}
static int __init snd_gusextreme_detect(int dev,
struct snd_card *card,
struct snd_gus_card * gus,
struct snd_es1688 *es1688)
{
unsigned long flags;
unsigned char d;
/*
* This is main stuff - enable access to GF1 chip...
* I'm not sure, if this will work for card which have
* ES1688 chip in another place than 0x220.
*
* I used reverse-engineering in DOSEMU. [--jk]
*
* ULTRINIT.EXE:
* 0x230 = 0,2,3
* 0x240 = 2,0,1
* 0x250 = 2,0,3
* 0x260 = 2,2,1
*/
spin_lock_irqsave(&es1688->mixer_lock, flags);
snd_es1688_mixer_write(es1688, 0x40, 0x0b); /* don't change!!! */
spin_unlock_irqrestore(&es1688->mixer_lock, flags);
spin_lock_irqsave(&es1688->reg_lock, flags);
outb(gf1_port[dev] & 0x040 ? 2 : 0, ES1688P(es1688, INIT1));
outb(0, 0x201);
outb(gf1_port[dev] & 0x020 ? 2 : 0, ES1688P(es1688, INIT1));
outb(0, 0x201);
outb(gf1_port[dev] & 0x010 ? 3 : 1, ES1688P(es1688, INIT1));
spin_unlock_irqrestore(&es1688->reg_lock, flags);
udelay(100);
snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
return -EIO;
}
udelay(160);
snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */
udelay(160);
if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
return -EIO;
}
return 0;
}
static int __devinit snd_gusclassic_detect(struct snd_gus_card *gus)
{
unsigned char d;
snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
return -ENODEV;
}
udelay(160);
snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */
udelay(160);
if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
return -ENODEV;
}
return 0;
}
irqreturn_t snd_gus_interrupt(int irq, void *dev_id)
{
struct snd_gus_card * gus = dev_id;
unsigned char status;
int loop = 100;
int handled = 0;
__again:
status = inb(gus->gf1.reg_irqstat);
if (status == 0)
return IRQ_RETVAL(handled);
handled = 1;
// snd_printk("IRQ: status = 0x%x\n", status);
if (status & 0x02) {
STAT_ADD(gus->gf1.interrupt_stat_midi_in);
if (gus->gf1.interrupt_handler_midi_in)
gus->gf1.interrupt_handler_midi_in(gus);
}
if (status & 0x01) {
STAT_ADD(gus->gf1.interrupt_stat_midi_out);
if (gus->gf1.interrupt_handler_midi_out)
gus->gf1.interrupt_handler_midi_out(gus);
}
if (status & (0x20 | 0x40)) {
unsigned int already, _current_;
unsigned char voice_status, voice;
struct snd_gus_voice *pvoice;
already = 0;
while (((voice_status = snd_gf1_i_read8(gus, SNDRV_GF1_GB_VOICES_IRQ)) & 0xc0) != 0xc0) {
voice = voice_status & 0x1f;
_current_ = 1 << voice;
if (already & _current_)
continue; /* multi request */
already |= _current_; /* mark request */
#if 0
printk("voice = %i, voice_status = 0x%x, voice_verify = %i\n", voice, voice_status, inb(GUSP(gus, GF1PAGE)));
#endif
pvoice = &gus->gf1.voices[voice];
if (pvoice->use) {
if (!(voice_status & 0x80)) { /* voice position IRQ */
STAT_ADD(pvoice->interrupt_stat_wave);
pvoice->handler_wave(gus, pvoice);
}
if (!(voice_status & 0x40)) { /* volume ramp IRQ */
STAT_ADD(pvoice->interrupt_stat_volume);
pvoice->handler_volume(gus, pvoice);
}
} else {
STAT_ADD(gus->gf1.interrupt_stat_voice_lost);
snd_gf1_i_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
snd_gf1_i_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
}
}
}
if (status & 0x04) {
STAT_ADD(gus->gf1.interrupt_stat_timer1);
if (gus->gf1.interrupt_handler_timer1)
gus->gf1.interrupt_handler_timer1(gus);
}
if (status & 0x08) {
STAT_ADD(gus->gf1.interrupt_stat_timer2);
if (gus->gf1.interrupt_handler_timer2)
gus->gf1.interrupt_handler_timer2(gus);
}
if (status & 0x80) {
if (snd_gf1_i_look8(gus, SNDRV_GF1_GB_DRAM_DMA_CONTROL) & 0x40) {
STAT_ADD(gus->gf1.interrupt_stat_dma_write);
if (gus->gf1.interrupt_handler_dma_write)
gus->gf1.interrupt_handler_dma_write(gus);
}
if (snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL) & 0x40) {
STAT_ADD(gus->gf1.interrupt_stat_dma_read);
if (gus->gf1.interrupt_handler_dma_read)
gus->gf1.interrupt_handler_dma_read(gus);
}
}
if (--loop > 0)
goto __again;
return IRQ_NONE;
}