d81a6d7176
These aren't modules, but they do make use of these macros, so they will need export.h to get that definition. Previously, they got it via the implicit module.h inclusion. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
/*
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* Information interface for ALSA driver
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/slab.h>
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#include <linux/time.h>
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#include <linux/string.h>
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#include <linux/export.h>
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#include <sound/core.h>
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#include <sound/minors.h>
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#include <sound/info.h>
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#include <sound/version.h>
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#include <linux/utsname.h>
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#include <linux/mutex.h>
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#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
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/*
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* OSS compatible part
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*/
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static DEFINE_MUTEX(strings);
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static char *snd_sndstat_strings[SNDRV_CARDS][SNDRV_OSS_INFO_DEV_COUNT];
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static struct snd_info_entry *snd_sndstat_proc_entry;
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int snd_oss_info_register(int dev, int num, char *string)
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{
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char *x;
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if (snd_BUG_ON(dev < 0 || dev >= SNDRV_OSS_INFO_DEV_COUNT))
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return -ENXIO;
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if (snd_BUG_ON(num < 0 || num >= SNDRV_CARDS))
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return -ENXIO;
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mutex_lock(&strings);
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if (string == NULL) {
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if ((x = snd_sndstat_strings[num][dev]) != NULL) {
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kfree(x);
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x = NULL;
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}
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} else {
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x = kstrdup(string, GFP_KERNEL);
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if (x == NULL) {
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mutex_unlock(&strings);
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return -ENOMEM;
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}
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}
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snd_sndstat_strings[num][dev] = x;
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mutex_unlock(&strings);
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return 0;
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}
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EXPORT_SYMBOL(snd_oss_info_register);
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static int snd_sndstat_show_strings(struct snd_info_buffer *buf, char *id, int dev)
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{
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int idx, ok = -1;
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char *str;
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snd_iprintf(buf, "\n%s:", id);
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mutex_lock(&strings);
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for (idx = 0; idx < SNDRV_CARDS; idx++) {
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str = snd_sndstat_strings[idx][dev];
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if (str) {
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if (ok < 0) {
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snd_iprintf(buf, "\n");
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ok++;
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}
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snd_iprintf(buf, "%i: %s\n", idx, str);
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}
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}
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mutex_unlock(&strings);
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if (ok < 0)
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snd_iprintf(buf, " NOT ENABLED IN CONFIG\n");
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return ok;
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}
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static void snd_sndstat_proc_read(struct snd_info_entry *entry,
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struct snd_info_buffer *buffer)
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{
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snd_iprintf(buffer, "Sound Driver:3.8.1a-980706 (ALSA v" CONFIG_SND_VERSION " emulation code)\n");
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snd_iprintf(buffer, "Kernel: %s %s %s %s %s\n",
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init_utsname()->sysname,
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init_utsname()->nodename,
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init_utsname()->release,
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init_utsname()->version,
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init_utsname()->machine);
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snd_iprintf(buffer, "Config options: 0\n");
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snd_iprintf(buffer, "\nInstalled drivers: \n");
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snd_iprintf(buffer, "Type 10: ALSA emulation\n");
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snd_iprintf(buffer, "\nCard config: \n");
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snd_card_info_read_oss(buffer);
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snd_sndstat_show_strings(buffer, "Audio devices", SNDRV_OSS_INFO_DEV_AUDIO);
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snd_sndstat_show_strings(buffer, "Synth devices", SNDRV_OSS_INFO_DEV_SYNTH);
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snd_sndstat_show_strings(buffer, "Midi devices", SNDRV_OSS_INFO_DEV_MIDI);
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snd_sndstat_show_strings(buffer, "Timers", SNDRV_OSS_INFO_DEV_TIMERS);
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snd_sndstat_show_strings(buffer, "Mixers", SNDRV_OSS_INFO_DEV_MIXERS);
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}
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int snd_info_minor_register(void)
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{
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struct snd_info_entry *entry;
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memset(snd_sndstat_strings, 0, sizeof(snd_sndstat_strings));
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if ((entry = snd_info_create_module_entry(THIS_MODULE, "sndstat", snd_oss_root)) != NULL) {
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entry->c.text.read = snd_sndstat_proc_read;
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if (snd_info_register(entry) < 0) {
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snd_info_free_entry(entry);
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entry = NULL;
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}
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}
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snd_sndstat_proc_entry = entry;
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return 0;
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}
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int snd_info_minor_unregister(void)
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{
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snd_info_free_entry(snd_sndstat_proc_entry);
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snd_sndstat_proc_entry = NULL;
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return 0;
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}
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#endif /* CONFIG_SND_OSSEMUL */
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