diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/isa/gus/gus_irq.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/isa/gus/gus_irq.c | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/ANDROID_3.4.5/sound/isa/gus/gus_irq.c b/ANDROID_3.4.5/sound/isa/gus/gus_irq.c deleted file mode 100644 index 2055aff7..00000000 --- a/ANDROID_3.4.5/sound/isa/gus/gus_irq.c +++ /dev/null @@ -1,149 +0,0 @@ -/* - * 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; -} - -#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); - } -} - -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); -} - -#endif |