+++ /dev/null
-/*
- * Advanced Linux Sound Architecture Control Program - ALSA Device Names
- * Copyright (c) 2005 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 "aconfig.h"
-#include "version.h"
-#include <getopt.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <assert.h>
-#include <errno.h>
-#include <alsa/asoundlib.h>
-#include "alsactl.h"
-
-typedef int (probe_single)(int card, snd_ctl_t *ctl, snd_config_t *config);
-
-static int globidx;
-
-static void dummy_error_handler(const char *file, int line, const char *function, int err, const char *fmt, ...)
-{
-}
-
-static int for_each_card(probe_single *fcn, snd_config_t *config)
-{
- int card = -1, first = 1, err;
- snd_ctl_t *ctl;
- char ctlname[16];
-
- while (1) {
- if (snd_card_next(&card) < 0)
- break;
- if (card < 0) {
- if (first) {
- error("No soundcards found...");
- return -ENODEV;
- }
- break;
- }
- first = 0;
- sprintf(ctlname, "hw:%i", card);
- err = snd_ctl_open(&ctl, ctlname, 0);
- if (err < 0)
- return err;
- err = (fcn)(card, ctl, config);
- snd_ctl_close(ctl);
- if (err < 0)
- return err;
- }
- return 0;
-}
-
-static int add_entry(snd_config_t *cfg, const char *name,
- const char *cprefix, const char *flag,
- const char *comment)
-{
- int err;
- snd_config_t *c, *d;
- char id[16];
- char xcomment[256];
- char *flag0 = " (", *flag1 = ")";
-
- if (cprefix == NULL)
- cprefix = "";
- if (flag == NULL) {
- flag0 = "";
- flag = "";
- flag1 = "";
- }
- sprintf(xcomment, "%s - %s%s%s%s", cprefix, comment, flag0, flag, flag1);
- sprintf(id, "alsactl%i", globidx++);
- err = snd_config_make_compound(&c, id, 0);
- if (err < 0)
- return err;
- err = snd_config_add(cfg, c);
- if (err < 0)
- return err;
- err = snd_config_make_string(&d, "name");
- if (err < 0)
- return err;
- err = snd_config_set_string(d, name);
- if (err < 0)
- return err;
- err = snd_config_add(c, d);
- if (err < 0)
- return err;
- err = snd_config_make_string(&d, "comment");
- if (err < 0)
- return err;
- err = snd_config_set_string(d, xcomment);
- if (err < 0)
- return err;
- err = snd_config_add(c, d);
- if (err < 0)
- return err;
- return 0;
-}
-
-static int probe_ctl_card(int card, snd_ctl_t *ctl, snd_config_t *config)
-{
- int err;
- snd_ctl_card_info_t * info;
- char name[16];
- const char *dname;
-
- snd_ctl_card_info_alloca(&info);
- err = snd_ctl_card_info(ctl, info);
- if (err < 0) {
- error("Unable to get info for card %i: %s\n", card, snd_strerror(err));
- return err;
- }
- sprintf(name, "hw:%i", card);
- dname = snd_ctl_card_info_get_longname(info);
- err = add_entry(config, name, "Physical Device", NULL, dname);
- if (err < 0)
- return err;
- return 0;
-}
-
-static int probe_ctl(snd_config_t *config)
-{
- int err;
- snd_config_t *c;
-
- err = snd_config_make_compound(&c, "ctl", 0);
- if (err < 0)
- return err;
- err = snd_config_add(config, c);
- if (err < 0)
- return err;
- err = for_each_card(probe_ctl_card, c);
- if (err < 0)
- return err;
- return 0;
-}
-
-static int probe_pcm_virtual(int card, snd_ctl_t *ctl, snd_config_t *config,
- const char *name, const char *comment)
-{
- snd_pcm_t *pcm1, *pcm2;
- int err1, err2, playback, capture, err;
- char name1[32], name2[32], *flag;
-
- if (!debugflag)
- snd_lib_error_set_handler(dummy_error_handler);
- sprintf(name1, name, card);
- sprintf(name2, "plug:%s", name1);
- err1 = snd_pcm_open(&pcm1, name1, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
- err2 = snd_pcm_open(&pcm2, name1, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK);
- snd_lib_error_set_handler(NULL);
- if (err1 >= 0)
- snd_pcm_close(pcm1);
- if (err2 >= 0)
- snd_pcm_close(pcm2);
- playback = (err1 == 0 || err1 == -EBUSY);
- capture = (err2 == 0 || err2 == -EBUSY);
- if (playback && capture)
- flag = "Duplex";
- else if (playback)
- flag = "Playback";
- else if (capture)
- flag = "Capture";
- else
- return 0;
- err = add_entry(config, name1, "Abstract Device", flag, comment);
- if (err >= 0)
- err = add_entry(config, name2, "Abstract Device With Conversions", flag, comment);
- return err;
-}
-
-static int probe_pcm_card(int card, snd_ctl_t *ctl, snd_config_t *config)
-{
- int dev = -1, err, err1, err2;
- snd_pcm_info_t * info1, * info2;
- snd_pcm_class_t class;
- char name[16];
- const char *dname;
- char *flag;
- int first = 1, idx;
- static const char *vnames1[] = {
- "default:%i", "Default Device",
- "front:%i", "Front Speakers",
- "rear:%i", "Rear Speakers",
- NULL
- };
- static const char *vnames2[] = {
- "surround40:%i", "Front and Rear Speakers",
- "surround51:%i", "Front, Rear, Center and Woofer",
- "surround71:%i", "Front, Rear, Side, Center and Woofer",
- "spdif:%i", "S/PDIF (IEC958) Optical or Coaxial Wire",
- "phoneline:%i", "Phone Line Interface",
- "modem:%i", "Soft Modem",
- NULL
- };
-
- snd_pcm_info_alloca(&info1);
- snd_pcm_info_alloca(&info2);
- while (1) {
- err = snd_ctl_pcm_next_device(ctl, &dev);
- if (err < 0)
- return err;
- if (dev < 0)
- break;
- memset(info1, 0, snd_pcm_info_sizeof());
- snd_pcm_info_set_device(info1, dev);
- snd_pcm_info_set_stream(info1, SND_PCM_STREAM_PLAYBACK);
- err1 = snd_ctl_pcm_info(ctl, info1);
- memset(info2, 0, snd_pcm_info_sizeof());
- snd_pcm_info_set_device(info2, dev);
- snd_pcm_info_set_stream(info2, SND_PCM_STREAM_CAPTURE);
- err2 = snd_ctl_pcm_info(ctl, info2);
- if (err1 < 0 && err2 < 0) {
- error("Unable to get info for pcm device %i:%i: %s\n", card, dev, snd_strerror(err1));
- continue;
- }
- dname = snd_pcm_info_get_name(info1);
- class = snd_pcm_info_get_class(info1);
- if (err1 == 0 && err2 == 0)
- flag = "Duplex";
- else if (err1 == 0)
- flag = "Playback";
- else {
- flag = "Capture";
- dname = snd_pcm_info_get_name(info2);
- class = snd_pcm_info_get_class(info2);
- }
- if (class != SND_PCM_CLASS_GENERIC &&
- class != SND_PCM_CLASS_MULTI &&
- class != SND_PCM_CLASS_MODEM ) /* skip this */
- continue;
- if (first) {
- for (idx = 0; vnames1[idx] != NULL; idx += 2)
- probe_pcm_virtual(card, ctl, config, vnames1[idx], vnames1[idx+1]);
- }
- first = 0;
- sprintf(name, "hw:%i,%i", card, dev);
- err = add_entry(config, name, "Physical Device", flag, dname);
- if (err < 0)
- return err;
- sprintf(name, "plughw:%i,%i", card, dev);
- err = add_entry(config, name, "Physical Device With Conversions", flag, dname);
- if (err < 0)
- return err;
- }
- if (!first) {
- for (idx = 0; vnames2[idx] != NULL; idx += 2)
- probe_pcm_virtual(card, ctl, config, vnames2[idx], vnames2[idx+1]);
- }
- return 0;
-}
-
-static int probe_pcm(snd_config_t *config)
-{
- int err;
- snd_config_t *c;
-
- err = snd_config_make_compound(&c, "pcm", 0);
- if (err < 0)
- return err;
- err = snd_config_add(config, c);
- if (err < 0)
- return err;
- err = for_each_card(probe_pcm_card, c);
- if (err < 0)
- return err;
- return 0;
-}
-
-static int probe_rawmidi_virtual(snd_config_t *config,
- const char *name, const char *comment)
-{
- snd_rawmidi_t *rawmidi1, *rawmidi2;
- int err1, err2, playback, capture, err;
- char *flag;
-
- if (!debugflag)
- snd_lib_error_set_handler(dummy_error_handler);
- err1 = snd_rawmidi_open(NULL, &rawmidi1, name, SND_RAWMIDI_NONBLOCK);
- err2 = snd_rawmidi_open(&rawmidi2, NULL, name, SND_RAWMIDI_NONBLOCK);
- snd_lib_error_set_handler(NULL);
- if (err1 >= 0)
- snd_rawmidi_close(rawmidi1);
- if (err2 >= 0)
- snd_rawmidi_close(rawmidi2);
- playback = (err1 == 0 || err1 == -EBUSY);
- capture = (err2 == 0 || err2 == -EBUSY);
- if (playback && capture)
- flag = "Duplex";
- else if (playback)
- flag = "Playback";
- else if (capture)
- flag = "Capture";
- else
- return 0;
- err = add_entry(config, name, "Abstract Device", flag, comment);
- return err;
-}
-
-static int probe_rawmidi_card(int card, snd_ctl_t *ctl, snd_config_t *config)
-{
- int dev = -1, err, err1, err2;
- snd_rawmidi_info_t * info1, * info2;
- char name[16];
- const char *dname;
- const char *subname;
- char *flag;
- int subdev;
-
- snd_rawmidi_info_alloca(&info1);
- snd_rawmidi_info_alloca(&info2);
- while (1) {
- err = snd_ctl_rawmidi_next_device(ctl, &dev);
- if (err < 0)
- return err;
- if (dev < 0)
- break;
- memset(info1, 0, snd_rawmidi_info_sizeof());
- snd_rawmidi_info_set_device(info1, dev);
- snd_rawmidi_info_set_stream(info1, SND_RAWMIDI_STREAM_OUTPUT);
- err1 = snd_ctl_rawmidi_info(ctl, info1);
- memset(info2, 0, snd_rawmidi_info_sizeof());
- snd_rawmidi_info_set_device(info2, dev);
- snd_rawmidi_info_set_stream(info2, SND_RAWMIDI_STREAM_INPUT);
- err2 = snd_ctl_rawmidi_info(ctl, info2);
- if (err1 < 0 && err2 < 0) {
- error("Unable to get info for rawmidi device %i:%i: %s\n", card, dev, snd_strerror(err1));
- continue;
- }
- dname = snd_rawmidi_info_get_name(info1);
- subname = snd_rawmidi_info_get_subdevice_name(info1);
- if (err1 == 0 && err2 == 0)
- flag = "Duplex";
- else if (err1 == 0)
- flag = "Output";
- else {
- flag = "Input";
- dname = snd_rawmidi_info_get_name(info2);
- subname = snd_rawmidi_info_get_subdevice_name(info2);
- }
- if (subname[0] == '\0') {
- sprintf(name, "hw:%i,%i", card, dev);
- err = add_entry(config, name, "Physical Device", flag, dname);
- if (err < 0)
- return err;
- } else {
- subdev = 0;
- do {
- sprintf(name, "hw:%i,%i,%i", card, dev, subdev);
- if (err1 == 0)
- subname = snd_rawmidi_info_get_subdevice_name(info1);
- else
- subname = snd_rawmidi_info_get_subdevice_name(info2);
- if (err1 == 0 && err2 == 0)
- flag = "Duplex";
- else if (err1 == 0)
- flag = "Output";
- else
- flag = "Input";
- err = add_entry(config, name, "Physical Device", flag, subname);
- if (err < 0)
- return err;
- ++subdev;
- snd_rawmidi_info_set_subdevice(info1, subdev);
- snd_rawmidi_info_set_subdevice(info2, subdev);
- err1 = snd_ctl_rawmidi_info(ctl, info1);
- err2 = snd_ctl_rawmidi_info(ctl, info2);
- } while (err1 == 0 || err2 == 0);
- }
- }
- return 0;
-}
-
-static int probe_rawmidi(snd_config_t *config)
-{
- int err;
- snd_config_t *c;
-
- err = snd_config_make_compound(&c, "rawmidi", 0);
- if (err < 0)
- return err;
- err = snd_config_add(config, c);
- if (err < 0)
- return err;
- err = probe_rawmidi_virtual(c, "default", "Default Device");
- if (err < 0)
- return err;
- err = for_each_card(probe_rawmidi_card, c);
- if (err < 0)
- return err;
- err = add_entry(c, "virtual", "Virtual Device", "Duplex", "Sequencer");
- if (err < 0)
- return err;
- err = add_entry(c, "virtual:MERGE=0", "Virtual Device", "Duplex", "Sequencer (No Merge)");
- if (err < 0)
- return err;
- return 0;
-}
-
-static int probe_timers(snd_config_t *config)
-{
- int err;
- snd_timer_query_t *handle;
- snd_timer_id_t *id;
- snd_timer_ginfo_t *info;
- char name[64];
- const char *dname;
-
- err = snd_timer_query_open(&handle, "default", 0);
- if (err < 0)
- return err;
- snd_timer_id_alloca(&id);
- snd_timer_ginfo_alloca(&info);
- snd_timer_id_set_class(id, SND_TIMER_CLASS_NONE);
- while (1) {
- err = snd_timer_query_next_device(handle, id);
- if (err < 0)
- goto _err;
- if (snd_timer_id_get_class(id) < 0)
- break;
- if (snd_timer_id_get_class(id) == SND_TIMER_CLASS_PCM)
- continue;
- snd_timer_ginfo_set_tid(info, id);
- err = snd_timer_query_info(handle, info);
- if (err < 0)
- continue;
- sprintf(name, "hw:CLASS=%i,SCLASS=%i,CARD=%i,DEV=%i,SUBDEV=%i",
- snd_timer_id_get_class(id),
- snd_timer_id_get_sclass(id),
- snd_timer_id_get_card(id),
- snd_timer_id_get_device(id),
- snd_timer_id_get_subdevice(id));
- dname = snd_timer_ginfo_get_name(info);
- err = add_entry(config, name, "Physical Device", NULL, dname);
- if (err < 0)
- goto _err;
- }
- err = 0;
- _err:
- snd_timer_query_close(handle);
- return err;
-}
-
-static int probe_timer(snd_config_t *config)
-{
- int err;
- snd_config_t *c;
-
- err = snd_config_make_compound(&c, "timer", 0);
- if (err < 0)
- return err;
- err = snd_config_add(config, c);
- if (err < 0)
- return err;
- err = probe_timers(c);
- if (err < 0)
- return err;
- return 0;
-}
-
-static int probe_seq(snd_config_t *config)
-{
- int err;
- snd_config_t *c;
-
- err = snd_config_make_compound(&c, "seq", 0);
- if (err < 0)
- return err;
- err = snd_config_add(config, c);
- if (err < 0)
- return err;
- err = add_entry(c, "default", "Default Device", "Duplex", "Sequencer");
- if (err < 0)
- return err;
- err = add_entry(c, "hw", "Physical Device", "Duplex", "Sequencer");
- if (err < 0)
- return err;
- return 0;
-}
-
-typedef int (probe_fcn)(snd_config_t *config);
-
-static probe_fcn * probes[] = {
- probe_ctl,
- probe_pcm,
- probe_rawmidi,
- probe_timer,
- probe_seq,
- NULL
-};
-
-int generate_names(const char *cfgfile)
-{
- int err, idx;
- snd_config_t *config;
- snd_output_t *out;
- int stdio, ok = 0;
-
- err = snd_config_top(&config);
- if (err < 0) {
- error("snd_config_top error: %s", snd_strerror(err));
- return err;
- }
- for (idx = 0; probes[idx]; idx++) {
- globidx = 1;
- err = (probes[idx])(config);
- if (err < 0) {
- /* ignore -ENOTTY indicating the non-existing component */
- if (err != -ENOTTY)
- error("probe %i failed: %s", idx, snd_strerror(err));
- } else {
- ok++;
- }
- }
- if (ok > 0) {
- stdio = !strcmp(cfgfile, "-");
- if (stdio) {
- err = snd_output_stdio_attach(&out, stdout, 0);
- } else {
- err = snd_output_stdio_open(&out, cfgfile, "w+");
- }
- if (err < 0) {
- error("Cannot open %s for writing: %s", cfgfile, snd_strerror(err));
- return -errno;
- }
- err = snd_config_save(config, out);
- snd_output_close(out);
- if (err < 0)
- error("snd_config_save: %s", snd_strerror(err));
- } else {
- return -ENOENT;
- }
- return 0;
-}
git://git.alsa-project.org / alsa-utils.git / commitdiff