From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- sound/core/info_oss.c | 106 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100644 sound/core/info_oss.c (limited to 'sound/core/info_oss.c') diff --git a/sound/core/info_oss.c b/sound/core/info_oss.c new file mode 100644 index 0000000000..ebc714b2f4 --- /dev/null +++ b/sound/core/info_oss.c @@ -0,0 +1,106 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Information interface for ALSA driver + * Copyright (c) by Jaroslav Kysela + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * OSS compatible part + */ + +static DEFINE_MUTEX(strings); +static char *snd_sndstat_strings[SNDRV_CARDS][SNDRV_OSS_INFO_DEV_COUNT]; + +int snd_oss_info_register(int dev, int num, char *string) +{ + char *x; + + if (snd_BUG_ON(dev < 0 || dev >= SNDRV_OSS_INFO_DEV_COUNT)) + return -ENXIO; + if (snd_BUG_ON(num < 0 || num >= SNDRV_CARDS)) + return -ENXIO; + mutex_lock(&strings); + if (string == NULL) { + x = snd_sndstat_strings[num][dev]; + 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); + +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 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 __init snd_info_minor_register(void) +{ + struct snd_info_entry *entry; + + memset(snd_sndstat_strings, 0, sizeof(snd_sndstat_strings)); + entry = snd_info_create_module_entry(THIS_MODULE, "sndstat", + snd_oss_root); + if (!entry) + return -ENOMEM; + entry->c.text.read = snd_sndstat_proc_read; + return snd_info_register(entry); /* freed in error path */ +} -- cgit v1.2.3