static void do_emu10k1_midi_interrupt(struct snd_emu10k1 *emu, struct snd_emu10k1_midi *midi, unsigned int status)
{
unsigned char byte;
if (midi->rmidi == NULL) {
snd_emu10k1_intr_disable(emu, midi->tx_enable | midi->rx_enable);
return;
}
spin_lock(&midi->input_lock);
if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {
if (!(midi->midi_mode & EMU10K1_MIDI_MODE_INPUT)) {
mpu401_clear_rx(emu, midi);
} else {
byte = mpu401_read_data(emu, midi);
if (midi->substream_input)
snd_rawmidi_receive(midi->substream_input, &byte, 1);
}
}
spin_unlock(&midi->input_lock);
spin_lock(&midi->output_lock);
if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {
if (midi->substream_output &&
snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
mpu401_write_data(emu, midi, byte);
} else {
snd_emu10k1_intr_disable(emu, midi->tx_enable);
}
}
spin_unlock(&midi->output_lock);
}
static void snd_emu10k1_midi_output_trigger(snd_rawmidi_substream_t * substream, int up)
{
emu10k1_t *emu;
emu10k1_midi_t *midi = (emu10k1_midi_t *)substream->rmidi->private_data;
unsigned long flags;
emu = midi->emu;
snd_assert(emu, return);
if (up) {
int max = 4;
unsigned char byte;
/* try to send some amount of bytes here before interrupts */
spin_lock_irqsave(&midi->output_lock, flags);
while (max > 0) {
if (mpu401_output_ready(emu, midi)) {
if (!(midi->midi_mode & EMU10K1_MIDI_MODE_OUTPUT) ||
snd_rawmidi_transmit(substream, &byte, 1) != 1) {
/* no more data */
spin_unlock_irqrestore(&midi->output_lock, flags);
return;
}
mpu401_write_data(emu, midi, byte);
max--;
} else {
break;
}
}
spin_unlock_irqrestore(&midi->output_lock, flags);
snd_emu10k1_intr_enable(emu, midi->tx_enable);
} else {
snd_emu10k1_intr_disable(emu, midi->tx_enable);
}
}
static int snd_emu10k1_timer_stop(struct snd_timer *timer)
{
struct snd_emu10k1 *emu;
unsigned long flags;
emu = snd_timer_chip(timer);
spin_lock_irqsave(&emu->reg_lock, flags);
snd_emu10k1_intr_disable(emu, INTE_INTERVALTIMERENB);
spin_unlock_irqrestore(&emu->reg_lock, flags);
return 0;
}
static void snd_emu10k1_midi_input_trigger(snd_rawmidi_substream_t * substream, int up)
{
emu10k1_t *emu;
emu10k1_midi_t *midi = (emu10k1_midi_t *)substream->rmidi->private_data;
emu = midi->emu;
snd_assert(emu, return);
if (up)
snd_emu10k1_intr_enable(emu, midi->rx_enable);
else
snd_emu10k1_intr_disable(emu, midi->rx_enable);
}
static void snd_emu10k1_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
struct snd_emu10k1 *emu;
struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
emu = midi->emu;
if (snd_BUG_ON(!emu))
return;
if (up)
snd_emu10k1_intr_enable(emu, midi->rx_enable);
else
snd_emu10k1_intr_disable(emu, midi->rx_enable);
}
static int snd_emu10k1_midi_output_close(snd_rawmidi_substream_t * substream)
{
emu10k1_t *emu;
emu10k1_midi_t *midi = (emu10k1_midi_t *)substream->rmidi->private_data;
unsigned long flags;
emu = midi->emu;
snd_assert(emu, return -ENXIO);
spin_lock_irqsave(&midi->open_lock, flags);
snd_emu10k1_intr_disable(emu, midi->tx_enable);
midi->midi_mode &= ~EMU10K1_MIDI_MODE_OUTPUT;
midi->substream_output = NULL;
if (!(midi->midi_mode & EMU10K1_MIDI_MODE_INPUT)) {
spin_unlock_irqrestore(&midi->open_lock, flags);
snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 0);
} else {
spin_unlock_irqrestore(&midi->open_lock, flags);
}
return 0;
}
static int snd_emu10k1_midi_output_close(struct snd_rawmidi_substream *substream)
{
struct snd_emu10k1 *emu;
struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
unsigned long flags;
int err = 0;
emu = midi->emu;
if (snd_BUG_ON(!emu))
return -ENXIO;
spin_lock_irqsave(&midi->open_lock, flags);
snd_emu10k1_intr_disable(emu, midi->tx_enable);
midi->midi_mode &= ~EMU10K1_MIDI_MODE_OUTPUT;
midi->substream_output = NULL;
if (!(midi->midi_mode & EMU10K1_MIDI_MODE_INPUT)) {
spin_unlock_irqrestore(&midi->open_lock, flags);
err = snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 0);
} else {
spin_unlock_irqrestore(&midi->open_lock, flags);
}
return err;
}
static void snd_emu10k1_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
{
struct snd_emu10k1 *emu;
struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
unsigned long flags;
emu = midi->emu;
if (snd_BUG_ON(!emu))
return;
if (up) {
int max = 4;
unsigned char byte;
/* */
spin_lock_irqsave(&midi->output_lock, flags);
while (max > 0) {
if (mpu401_output_ready(emu, midi)) {
if (!(midi->midi_mode & EMU10K1_MIDI_MODE_OUTPUT) ||
snd_rawmidi_transmit(substream, &byte, 1) != 1) {
/* */
spin_unlock_irqrestore(&midi->output_lock, flags);
return;
}
mpu401_write_data(emu, midi, byte);
max--;
} else {
break;
}
}
spin_unlock_irqrestore(&midi->output_lock, flags);
snd_emu10k1_intr_enable(emu, midi->tx_enable);
} else {
snd_emu10k1_intr_disable(emu, midi->tx_enable);
}
}
irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id)
{
struct snd_emu10k1 *emu = dev_id;
unsigned int status, status2, orig_status, orig_status2;
int handled = 0;
int timeout = 0;
while (((status = inl(emu->port + IPR)) != 0) && (timeout < 1000)) {
timeout++;
orig_status = status;
handled = 1;
if ((status & 0xffffffff) == 0xffffffff) {
;
break;
}
if (status & IPR_PCIERROR) {
;
snd_emu10k1_intr_disable(emu, INTE_PCIERRORENABLE);
status &= ~IPR_PCIERROR;
}
if (status & (IPR_VOLINCR|IPR_VOLDECR|IPR_MUTE)) {
if (emu->hwvol_interrupt)
emu->hwvol_interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_VOLINCRENABLE|INTE_VOLDECRENABLE|INTE_MUTEENABLE);
status &= ~(IPR_VOLINCR|IPR_VOLDECR|IPR_MUTE);
}
if (status & IPR_CHANNELLOOP) {
int voice;
int voice_max = status & IPR_CHANNELNUMBERMASK;
u32 val;
struct snd_emu10k1_voice *pvoice = emu->voices;
val = snd_emu10k1_ptr_read(emu, CLIPL, 0);
for (voice = 0; voice <= voice_max; voice++) {
if (voice == 0x20)
val = snd_emu10k1_ptr_read(emu, CLIPH, 0);
if (val & 1) {
if (pvoice->use && pvoice->interrupt != NULL) {
pvoice->interrupt(emu, pvoice);
snd_emu10k1_voice_intr_ack(emu, voice);
} else {
snd_emu10k1_voice_intr_disable(emu, voice);
}
}
val >>= 1;
pvoice++;
}
val = snd_emu10k1_ptr_read(emu, HLIPL, 0);
for (voice = 0; voice <= voice_max; voice++) {
if (voice == 0x20)
val = snd_emu10k1_ptr_read(emu, HLIPH, 0);
if (val & 1) {
if (pvoice->use && pvoice->interrupt != NULL) {
pvoice->interrupt(emu, pvoice);
snd_emu10k1_voice_half_loop_intr_ack(emu, voice);
} else {
snd_emu10k1_voice_half_loop_intr_disable(emu, voice);
}
}
val >>= 1;
pvoice++;
}
status &= ~IPR_CHANNELLOOP;
}
status &= ~IPR_CHANNELNUMBERMASK;
if (status & (IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL)) {
if (emu->capture_interrupt)
emu->capture_interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_ADCBUFENABLE);
status &= ~(IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL);
}
if (status & (IPR_MICBUFFULL|IPR_MICBUFHALFFULL)) {
if (emu->capture_mic_interrupt)
emu->capture_mic_interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_MICBUFENABLE);
status &= ~(IPR_MICBUFFULL|IPR_MICBUFHALFFULL);
}
if (status & (IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL)) {
if (emu->capture_efx_interrupt)
emu->capture_efx_interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_EFXBUFENABLE);
status &= ~(IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL);
}
if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
if (emu->midi.interrupt)
emu->midi.interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
status &= ~(IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY);
}
if (status & (IPR_A_MIDITRANSBUFEMPTY2|IPR_A_MIDIRECVBUFEMPTY2)) {
if (emu->midi2.interrupt)
emu->midi2.interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_A_MIDITXENABLE2|INTE_A_MIDIRXENABLE2);
status &= ~(IPR_A_MIDITRANSBUFEMPTY2|IPR_A_MIDIRECVBUFEMPTY2);
}
if (status & IPR_INTERVALTIMER) {
if (emu->timer)
snd_timer_interrupt(emu->timer, emu->timer->sticks);
else
snd_emu10k1_intr_disable(emu, INTE_INTERVALTIMERENB);
status &= ~IPR_INTERVALTIMER;
}
if (status & (IPR_GPSPDIFSTATUSCHANGE|IPR_CDROMSTATUSCHANGE)) {
if (emu->spdif_interrupt)
emu->spdif_interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_GPSPDIFENABLE|INTE_CDSPDIFENABLE);
status &= ~(IPR_GPSPDIFSTATUSCHANGE|IPR_CDROMSTATUSCHANGE);
}
if (status & IPR_FXDSP) {
if (emu->dsp_interrupt)
emu->dsp_interrupt(emu);
else
snd_emu10k1_intr_disable(emu, INTE_FXDSPENABLE);
status &= ~IPR_FXDSP;
}
if (status & IPR_P16V) {
while ((status2 = inl(emu->port + IPR2)) != 0) {
u32 mask = INTE2_PLAYBACK_CH_0_LOOP; /* Full Loop */
struct snd_emu10k1_voice *pvoice = &(emu->p16v_voices[0]);
struct snd_emu10k1_voice *cvoice = &(emu->p16v_capture_voice);
;
orig_status2 = status2;
if(status2 & mask) {
if(pvoice->use) {
snd_pcm_period_elapsed(pvoice->epcm->substream);
} else {
;
}
}
if(status2 & 0x110000) {
;
if(cvoice->use) {
;
snd_pcm_period_elapsed(cvoice->epcm->substream);
}
}
outl(orig_status2, emu->port + IPR2); /* ack all */
}
status &= ~IPR_P16V;
}
if (status) {
unsigned int bits;
;
//make sure any interrupts we don't handle are disabled:
bits = INTE_FXDSPENABLE |
INTE_PCIERRORENABLE |
INTE_VOLINCRENABLE |
INTE_VOLDECRENABLE |
INTE_MUTEENABLE |
INTE_MICBUFENABLE |
INTE_ADCBUFENABLE |
INTE_EFXBUFENABLE |
INTE_GPSPDIFENABLE |
INTE_CDSPDIFENABLE |
INTE_INTERVALTIMERENB |
INTE_MIDITXENABLE |
INTE_MIDIRXENABLE;
if (emu->audigy)
bits |= INTE_A_MIDITXENABLE2 | INTE_A_MIDIRXENABLE2;
snd_emu10k1_intr_disable(emu, bits);
}
outl(orig_status, emu->port + IPR); /* ack all */
}
irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
emu10k1_t *emu = dev_id;
unsigned int status, status2, orig_status, orig_status2;
int handled = 0;
while ((status = inl(emu->port + IPR)) != 0) {
// printk("irq - status = 0x%x\n", status);
orig_status = status;
handled = 1;
if (status & IPR_PCIERROR) {
snd_printk("interrupt: PCI error\n");
snd_emu10k1_intr_disable(emu, INTE_PCIERRORENABLE);
status &= ~IPR_PCIERROR;
}
if (status & (IPR_VOLINCR|IPR_VOLDECR|IPR_MUTE)) {
if (emu->hwvol_interrupt)
emu->hwvol_interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_VOLINCRENABLE|INTE_VOLDECRENABLE|INTE_MUTEENABLE);
status &= ~(IPR_VOLINCR|IPR_VOLDECR|IPR_MUTE);
}
if (status & IPR_CHANNELLOOP) {
int voice;
int voice_max = status & IPR_CHANNELNUMBERMASK;
u32 val;
emu10k1_voice_t *pvoice = emu->voices;
val = snd_emu10k1_ptr_read(emu, CLIPL, 0);
for (voice = 0; voice <= voice_max; voice++) {
if (voice == 0x20)
val = snd_emu10k1_ptr_read(emu, CLIPH, 0);
if (val & 1) {
if (pvoice->use && pvoice->interrupt != NULL) {
pvoice->interrupt(emu, pvoice);
snd_emu10k1_voice_intr_ack(emu, voice);
} else {
snd_emu10k1_voice_intr_disable(emu, voice);
}
}
val >>= 1;
pvoice++;
}
val = snd_emu10k1_ptr_read(emu, HLIPL, 0);
for (voice = 0; voice <= voice_max; voice++) {
if (voice == 0x20)
val = snd_emu10k1_ptr_read(emu, HLIPH, 0);
if (val & 1) {
if (pvoice->use && pvoice->interrupt != NULL) {
pvoice->interrupt(emu, pvoice);
snd_emu10k1_voice_half_loop_intr_ack(emu, voice);
} else {
snd_emu10k1_voice_half_loop_intr_disable(emu, voice);
}
}
val >>= 1;
pvoice++;
}
status &= ~IPR_CHANNELLOOP;
}
status &= ~IPR_CHANNELNUMBERMASK;
if (status & (IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL)) {
if (emu->capture_interrupt)
emu->capture_interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_ADCBUFENABLE);
status &= ~(IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL);
}
if (status & (IPR_MICBUFFULL|IPR_MICBUFHALFFULL)) {
if (emu->capture_mic_interrupt)
emu->capture_mic_interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_MICBUFENABLE);
status &= ~(IPR_MICBUFFULL|IPR_MICBUFHALFFULL);
}
if (status & (IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL)) {
if (emu->capture_efx_interrupt)
emu->capture_efx_interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_EFXBUFENABLE);
status &= ~(IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL);
}
if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
if (emu->midi.interrupt)
emu->midi.interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
status &= ~(IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY);
}
if (status & (IPR_A_MIDITRANSBUFEMPTY2|IPR_A_MIDIRECVBUFEMPTY2)) {
if (emu->midi2.interrupt)
emu->midi2.interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_A_MIDITXENABLE2|INTE_A_MIDIRXENABLE2);
status &= ~(IPR_A_MIDITRANSBUFEMPTY2|IPR_A_MIDIRECVBUFEMPTY2);
}
if (status & IPR_INTERVALTIMER) {
if (emu->timer)
snd_timer_interrupt(emu->timer, emu->timer->sticks);
else
snd_emu10k1_intr_disable(emu, INTE_INTERVALTIMERENB);
status &= ~IPR_INTERVALTIMER;
}
if (status & (IPR_GPSPDIFSTATUSCHANGE|IPR_CDROMSTATUSCHANGE)) {
if (emu->spdif_interrupt)
emu->spdif_interrupt(emu, status);
else
snd_emu10k1_intr_disable(emu, INTE_GPSPDIFENABLE|INTE_CDSPDIFENABLE);
status &= ~(IPR_GPSPDIFSTATUSCHANGE|IPR_CDROMSTATUSCHANGE);
}
if (status & IPR_FXDSP) {
if (emu->dsp_interrupt)
emu->dsp_interrupt(emu);
else
snd_emu10k1_intr_disable(emu, INTE_FXDSPENABLE);
status &= ~IPR_FXDSP;
}
if (status) {
unsigned int bits;
//snd_printk(KERN_ERR "emu10k1: unhandled interrupt: 0x%08x\n", status);
//make sure any interrupts we don't handle are disabled:
bits = INTE_FXDSPENABLE |
INTE_PCIERRORENABLE |
INTE_VOLINCRENABLE |
INTE_VOLDECRENABLE |
INTE_MUTEENABLE |
INTE_MICBUFENABLE |
INTE_ADCBUFENABLE |
INTE_EFXBUFENABLE |
INTE_GPSPDIFENABLE |
INTE_CDSPDIFENABLE |
INTE_INTERVALTIMERENB |
INTE_MIDITXENABLE |
INTE_MIDIRXENABLE;
if (emu->audigy)
bits |= INTE_A_MIDITXENABLE2 | INTE_A_MIDIRXENABLE2;
snd_emu10k1_intr_disable(emu, bits);
}
outl(orig_status, emu->port + IPR); /* ack all */
}
