sound/synth/emux/emux_proc.c

Source file repositories/reference/linux-study-clean/sound/synth/emux/emux_proc.c

File Facts

System
Linux kernel
Corpus path
sound/synth/emux/emux_proc.c
Extension
.c
Size
3672 bytes
Lines
111
Domain
Driver Families
Bucket
sound/synth
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
 *
 *  Proc interface for Emu8k/Emu10k1 WaveTable synth
 */

#include <linux/wait.h>
#include <sound/core.h>
#include <sound/emux_synth.h>
#include <sound/info.h>
#include "emux_voice.h"

static void
snd_emux_proc_info_read(struct snd_info_entry *entry, 
			struct snd_info_buffer *buf)
{
	struct snd_emux *emu;
	int i;

	emu = entry->private_data;
	guard(mutex)(&emu->register_mutex);
	if (emu->name)
		snd_iprintf(buf, "Device: %s\n", emu->name);
	snd_iprintf(buf, "Ports: %d\n", emu->num_ports);
	snd_iprintf(buf, "Addresses:");
	for (i = 0; i < emu->num_ports; i++)
		snd_iprintf(buf, " %d:%d", emu->client, emu->ports[i]);
	snd_iprintf(buf, "\n");
	snd_iprintf(buf, "Use Counter: %d\n", emu->used);
	snd_iprintf(buf, "Max Voices: %d\n", emu->max_voices);
	snd_iprintf(buf, "Allocated Voices: %d\n", emu->num_voices);
	if (emu->memhdr) {
		snd_iprintf(buf, "Memory Size: %d\n", emu->memhdr->size);
		snd_iprintf(buf, "Memory Available: %d\n", snd_util_mem_avail(emu->memhdr));
		snd_iprintf(buf, "Allocated Blocks: %d\n", emu->memhdr->nblocks);
	} else {
		snd_iprintf(buf, "Memory Size: 0\n");
	}
	if (emu->sflist) {
		guard(mutex)(&emu->sflist->presets_mutex);
		snd_iprintf(buf, "SoundFonts: %d\n", emu->sflist->fonts_size);
		snd_iprintf(buf, "Instruments: %d\n", emu->sflist->zone_counter);
		snd_iprintf(buf, "Samples: %d\n", emu->sflist->sample_counter);
		snd_iprintf(buf, "Locked Instruments: %d\n", emu->sflist->zone_locked);
		snd_iprintf(buf, "Locked Samples: %d\n", emu->sflist->sample_locked);
	}
#if 0  /* debug */
	if (emu->voices[0].state != SNDRV_EMUX_ST_OFF && emu->voices[0].ch >= 0) {
		struct snd_emux_voice *vp = &emu->voices[0];
		snd_iprintf(buf, "voice 0: on\n");
		snd_iprintf(buf, "mod delay=%x, atkhld=%x, dcysus=%x, rel=%x\n",
			    vp->reg.parm.moddelay,
			    vp->reg.parm.modatkhld,
			    vp->reg.parm.moddcysus,
			    vp->reg.parm.modrelease);
		snd_iprintf(buf, "vol delay=%x, atkhld=%x, dcysus=%x, rel=%x\n",
			    vp->reg.parm.voldelay,
			    vp->reg.parm.volatkhld,
			    vp->reg.parm.voldcysus,
			    vp->reg.parm.volrelease);
		snd_iprintf(buf, "lfo1 delay=%x, lfo2 delay=%x, pefe=%x\n",
			    vp->reg.parm.lfo1delay,
			    vp->reg.parm.lfo2delay,
			    vp->reg.parm.pefe);
		snd_iprintf(buf, "fmmod=%x, tremfrq=%x, fm2frq2=%x\n",
			    vp->reg.parm.fmmod,
			    vp->reg.parm.tremfrq,
			    vp->reg.parm.fm2frq2);
		snd_iprintf(buf, "cutoff=%x, filterQ=%x, chorus=%x, reverb=%x\n",
			    vp->reg.parm.cutoff,
			    vp->reg.parm.filterQ,
			    vp->reg.parm.chorus,
			    vp->reg.parm.reverb);
		snd_iprintf(buf, "avol=%x, acutoff=%x, apitch=%x\n",
			    vp->avol, vp->acutoff, vp->apitch);
		snd_iprintf(buf, "apan=%x, aaux=%x, ptarget=%x, vtarget=%x, ftarget=%x\n",
			    vp->apan, vp->aaux,
			    vp->ptarget,
			    vp->vtarget,
			    vp->ftarget);
		snd_iprintf(buf, "start=%x, end=%x, loopstart=%x, loopend=%x\n",
			    vp->reg.start, vp->reg.end, vp->reg.loopstart, vp->reg.loopend);
		snd_iprintf(buf, "sample_mode=%x, rate=%x\n", vp->reg.sample_mode, vp->reg.rate_offset);
	}
#endif
}


void snd_emux_proc_init(struct snd_emux *emu, struct snd_card *card, int device)

Annotation

Implementation Notes