[linux.git] / sound / core / info_oss.c

/*
 *  Information interface for ALSA driver
 *  Copyright (c) by Jaroslav Kysela <[email protected]>
 *
 *
 *   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/driver.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/string.h>
#include <sound/core.h>
#include <sound/minors.h>
#include <sound/info.h>
#include <sound/version.h>
#include <linux/utsname.h>
#include <linux/mutex.h>

#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)

/*
 *  OSS compatible part
 */

static DEFINE_MUTEX(strings);
static char *snd_sndstat_strings[SNDRV_CARDS][SNDRV_OSS_INFO_DEV_COUNT];
static struct snd_info_entry *snd_sndstat_proc_entry;

int snd_oss_info_register(int dev, int num, char *string)
{
	char *x;

	snd_assert(dev >= 0 && dev < SNDRV_OSS_INFO_DEV_COUNT, return -ENXIO);
	snd_assert(num >= 0 && num < SNDRV_CARDS, return -ENXIO);
	mutex_lock(&strings);
	if (string == NULL) {
		if ((x = snd_sndstat_strings[num][dev]) != NULL) {
			kfree(x);
			x = NULL;
		}
	} else {
		x = kstrdup(string, GFP_KERNEL);
		if (x == NULL) {
			mutex_unlock(&strings);
			return -ENOMEM;
		}
	}
	snd_sndstat_strings[num][dev] = x;
	mutex_unlock(&strings);
	return 0;
}

EXPORT_SYMBOL(snd_oss_info_register);

extern void snd_card_info_read_oss(struct snd_info_buffer *buffer);

static int snd_sndstat_show_strings(struct snd_info_buffer *buf, char *id, int dev)
{
	int idx, ok = -1;
	char *str;

	snd_iprintf(buf, "\n%s:", id);
	mutex_lock(&strings);
	for (idx = 0; idx < SNDRV_CARDS; idx++) {
		str = snd_sndstat_strings[idx][dev];
		if (str) {
			if (ok < 0) {
				snd_iprintf(buf, "\n");
				ok++;
			}
			snd_iprintf(buf, "%i: %s\n", idx, str);
		}
	}
	mutex_unlock(&strings);
	if (ok < 0)
		snd_iprintf(buf, " NOT ENABLED IN CONFIG\n");
	return ok;
}

static void snd_sndstat_proc_read(struct snd_info_entry *entry,
				  struct snd_info_buffer *buffer)
{
	snd_iprintf(buffer, "Sound Driver:3.8.1a-980706 (ALSA v" CONFIG_SND_VERSION " emulation code)\n");
	snd_iprintf(buffer, "Kernel: %s %s %s %s %s\n",
		    init_utsname()->sysname,
		    init_utsname()->nodename,
		    init_utsname()->release,
		    init_utsname()->version,
		    init_utsname()->machine);
	snd_iprintf(buffer, "Config options: 0\n");
	snd_iprintf(buffer, "\nInstalled drivers: \n");
	snd_iprintf(buffer, "Type 10: ALSA emulation\n");
	snd_iprintf(buffer, "\nCard config: \n");
	snd_card_info_read_oss(buffer);
	snd_sndstat_show_strings(buffer, "Audio devices", SNDRV_OSS_INFO_DEV_AUDIO);
	snd_sndstat_show_strings(buffer, "Synth devices", SNDRV_OSS_INFO_DEV_SYNTH);
	snd_sndstat_show_strings(buffer, "Midi devices", SNDRV_OSS_INFO_DEV_MIDI);
	snd_sndstat_show_strings(buffer, "Timers", SNDRV_OSS_INFO_DEV_TIMERS);
	snd_sndstat_show_strings(buffer, "Mixers", SNDRV_OSS_INFO_DEV_MIXERS);
}

int snd_info_minor_register(void)
{
	struct snd_info_entry *entry;

	memset(snd_sndstat_strings, 0, sizeof(snd_sndstat_strings));
	if ((entry = snd_info_create_module_entry(THIS_MODULE, "sndstat", snd_oss_root)) != NULL) {
		entry->c.text.read = snd_sndstat_proc_read;
		if (snd_info_register(entry) < 0) {
			snd_info_free_entry(entry);
			entry = NULL;
		}
	}
	snd_sndstat_proc_entry = entry;
	return 0;
}

int snd_info_minor_unregister(void)
{
	snd_info_free_entry(snd_sndstat_proc_entry);
	snd_sndstat_proc_entry = NULL;
	return 0;
}

#endif /* CONFIG_SND_OSSEMUL */
Commit	Line	Data
1da177e4 LT	1	/*
1da177e4 LT	2	* Information interface for ALSA driver
c1017a4c	3	* Copyright (c) by Jaroslav Kysela <[email protected]>
1da177e4 LT	4	*
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*
	20	*/
	21
	22	#include <sound/driver.h>
	23	#include <linux/slab.h>
	24	#include <linux/time.h>
543537bd	25	#include <linux/string.h>
1da177e4 LT	26	#include <sound/core.h>
	27	#include <sound/minors.h>
	28	#include <sound/info.h>
	29	#include <sound/version.h>
	30	#include <linux/utsname.h>
1a60d4c5	31	#include <linux/mutex.h>
1da177e4 LT	32
	33	#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
	34
	35	/*
	36	* OSS compatible part
	37	*/
	38
1a60d4c5	39	static DEFINE_MUTEX(strings);
1da177e4	40	static char *snd_sndstat_strings[SNDRV_CARDS][SNDRV_OSS_INFO_DEV_COUNT];
174c1f65	41	static struct snd_info_entry *snd_sndstat_proc_entry;
1da177e4 LT	42
	43	int snd_oss_info_register(int dev, int num, char *string)
	44	{
	45	char *x;
	46
	47	snd_assert(dev >= 0 && dev < SNDRV_OSS_INFO_DEV_COUNT, return -ENXIO);
	48	snd_assert(num >= 0 && num < SNDRV_CARDS, return -ENXIO);
1a60d4c5	49	mutex_lock(&strings);
1da177e4 LT	50	if (string == NULL) {
	51	if ((x = snd_sndstat_strings[num][dev]) != NULL) {
	52	kfree(x);
	53	x = NULL;
	54	}
	55	} else {
543537bd	56	x = kstrdup(string, GFP_KERNEL);
1da177e4	57	if (x == NULL) {
1a60d4c5	58	mutex_unlock(&strings);
1da177e4 LT	59	return -ENOMEM;
	60	}
	61	}
	62	snd_sndstat_strings[num][dev] = x;
1a60d4c5	63	mutex_unlock(&strings);
1da177e4 LT	64	return 0;
	65	}
	66
c0d3fb39 TI	67	EXPORT_SYMBOL(snd_oss_info_register);
c0d3fb39 TI	68
174c1f65	69	extern void snd_card_info_read_oss(struct snd_info_buffer *buffer);
1da177e4	70
174c1f65	71	static int snd_sndstat_show_strings(struct snd_info_buffer buf, char id, int dev)
1da177e4 LT	72	{
	73	int idx, ok = -1;
	74	char *str;
	75
	76	snd_iprintf(buf, "\n%s:", id);
1a60d4c5	77	mutex_lock(&strings);
1da177e4 LT	78	for (idx = 0; idx < SNDRV_CARDS; idx++) {
	79	str = snd_sndstat_strings[idx][dev];
	80	if (str) {
	81	if (ok < 0) {
	82	snd_iprintf(buf, "\n");
	83	ok++;
	84	}
	85	snd_iprintf(buf, "%i: %s\n", idx, str);
	86	}
	87	}
1a60d4c5	88	mutex_unlock(&strings);
1da177e4 LT	89	if (ok < 0)
	90	snd_iprintf(buf, " NOT ENABLED IN CONFIG\n");
	91	return ok;
	92	}
	93
174c1f65 TI	94	static void snd_sndstat_proc_read(struct snd_info_entry *entry,
174c1f65 TI	95	struct snd_info_buffer *buffer)
1da177e4 LT	96	{
	97	snd_iprintf(buffer, "Sound Driver:3.8.1a-980706 (ALSA v" CONFIG_SND_VERSION " emulation code)\n");
	98	snd_iprintf(buffer, "Kernel: %s %s %s %s %s\n",
96b644bd SH	99	init_utsname()->sysname,
	100	init_utsname()->nodename,
	101	init_utsname()->release,
	102	init_utsname()->version,
	103	init_utsname()->machine);
1da177e4 LT	104	snd_iprintf(buffer, "Config options: 0\n");
	105	snd_iprintf(buffer, "\nInstalled drivers: \n");
	106	snd_iprintf(buffer, "Type 10: ALSA emulation\n");
	107	snd_iprintf(buffer, "\nCard config: \n");
	108	snd_card_info_read_oss(buffer);
	109	snd_sndstat_show_strings(buffer, "Audio devices", SNDRV_OSS_INFO_DEV_AUDIO);
	110	snd_sndstat_show_strings(buffer, "Synth devices", SNDRV_OSS_INFO_DEV_SYNTH);
	111	snd_sndstat_show_strings(buffer, "Midi devices", SNDRV_OSS_INFO_DEV_MIDI);
	112	snd_sndstat_show_strings(buffer, "Timers", SNDRV_OSS_INFO_DEV_TIMERS);
	113	snd_sndstat_show_strings(buffer, "Mixers", SNDRV_OSS_INFO_DEV_MIXERS);
	114	}
	115
	116	int snd_info_minor_register(void)
	117	{
174c1f65	118	struct snd_info_entry *entry;
1da177e4 LT	119
	120	memset(snd_sndstat_strings, 0, sizeof(snd_sndstat_strings));
	121	if ((entry = snd_info_create_module_entry(THIS_MODULE, "sndstat", snd_oss_root)) != NULL) {
1da177e4 LT	122	entry->c.text.read = snd_sndstat_proc_read;
	123	if (snd_info_register(entry) < 0) {
	124	snd_info_free_entry(entry);
	125	entry = NULL;
	126	}
	127	}
	128	snd_sndstat_proc_entry = entry;
	129	return 0;
	130	}
	131
	132	int snd_info_minor_unregister(void)
	133	{
746d4a02 TI	134	snd_info_free_entry(snd_sndstat_proc_entry);
746d4a02 TI	135	snd_sndstat_proc_entry = NULL;
1da177e4 LT	136	return 0;
	137	}
	138
	139	#endif /* CONFIG_SND_OSSEMUL */