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Release 4.8 sound/isa/gus/gus_irq.c

Directory: sound/isa/gus
/*
 *  Routine for IRQ handling from GF1/InterWave chip
 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <sound/core.h>
#include <sound/info.h>
#include <sound/gus.h>

#ifdef CONFIG_SND_DEBUG

#define STAT_ADD(x)	((x)++)
#else

#define STAT_ADD(x)	while (0) { ; }
#endif


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(KERN_DEBUG "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(KERN_DEBUG "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; }

Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela41284.95%233.33%
ingo molnaringo molnar489.90%116.67%
andrew mortonandrew morton193.92%116.67%
takashi iwaitakashi iwai61.24%233.33%
Total485100.00%6100.00%

#ifdef CONFIG_SND_DEBUG
static void snd_gus_irq_info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_gus_card *gus; struct snd_gus_voice *pvoice; int idx; gus = entry->private_data; snd_iprintf(buffer, "midi out = %u\n", gus->gf1.interrupt_stat_midi_out); snd_iprintf(buffer, "midi in = %u\n", gus->gf1.interrupt_stat_midi_in); snd_iprintf(buffer, "timer1 = %u\n", gus->gf1.interrupt_stat_timer1); snd_iprintf(buffer, "timer2 = %u\n", gus->gf1.interrupt_stat_timer2); snd_iprintf(buffer, "dma write = %u\n", gus->gf1.interrupt_stat_dma_write); snd_iprintf(buffer, "dma read = %u\n", gus->gf1.interrupt_stat_dma_read); snd_iprintf(buffer, "voice lost = %u\n", gus->gf1.interrupt_stat_voice_lost); for (idx = 0; idx < 32; idx++) { pvoice = &gus->gf1.voices[idx]; snd_iprintf(buffer, "voice %i: wave = %u, volume = %u\n", idx, pvoice->interrupt_stat_wave, pvoice->interrupt_stat_volume); } }

Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela16295.29%266.67%
takashi iwaitakashi iwai84.71%133.33%
Total170100.00%3100.00%


void snd_gus_irq_profile_init(struct snd_gus_card *gus) { struct snd_info_entry *entry; if (! snd_card_proc_new(gus->card, "gusirq", &entry)) snd_info_set_text_ops(entry, gus, snd_gus_irq_info_read); }

Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela3589.74%266.67%
takashi iwaitakashi iwai410.26%133.33%
Total39100.00%3100.00%

#endif

Overall Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela64588.36%450.00%
ingo molnaringo molnar486.58%112.50%
andrew mortonandrew morton192.60%112.50%
takashi iwaitakashi iwai182.47%225.00%
Total730100.00%8100.00%
Directory: sound/isa/gus
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