1 files changed, 137 insertions, 0 deletions

diff --git a/sound/core/info_oss.c b/sound/core/info_oss.c
new file mode 100644
index 000000000000..f9e4ce443454
--- /dev/null
+++ b/sound/core/info_oss.c
@@ -0,0 +1,137 @@
+/*
+ *  Information interface for ALSA driver
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.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 <sound/driver.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+#include <sound/core.h>
+#include <sound/minors.h>
+#include <sound/info.h>
+#include <sound/version.h>
+#include <linux/utsname.h>
+
+#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
+
+/*
+ *  OSS compatible part
+ */
+
+static DECLARE_MUTEX(strings);
+static char *snd_sndstat_strings[SNDRV_CARDS][SNDRV_OSS_INFO_DEV_COUNT];
+static snd_info_entry_t *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);
+        down(&strings);
+        if (string == NULL) {
+                if ((x = snd_sndstat_strings[num][dev]) != NULL) {
+                        kfree(x);
+                        x = NULL;
+                }
+        } else {
+                x = snd_kmalloc_strdup(string, GFP_KERNEL);
+                if (x == NULL) {
+                        up(&strings);
+                        return -ENOMEM;
+                }
+        }
+        snd_sndstat_strings[num][dev] = x;
+        up(&strings);
+        return 0;
+}
+
+extern void snd_card_info_read_oss(snd_info_buffer_t * buffer);
+
+static int snd_sndstat_show_strings(snd_info_buffer_t * buf, char *id, int dev)
+{
+        int idx, ok = -1;
+        char *str;
+
+        snd_iprintf(buf, "\n%s:", id);
+        down(&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);
+                }
+        }
+        up(&strings);
+        if (ok < 0)
+                snd_iprintf(buf, " NOT ENABLED IN CONFIG\n");
+        return ok;
+}
+
+static void snd_sndstat_proc_read(snd_info_entry_t *entry, snd_info_buffer_t * 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",
+                    system_utsname.sysname,
+                    system_utsname.nodename,
+                    system_utsname.release,
+                    system_utsname.version,
+                    system_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)
+{
+        snd_info_entry_t *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_size = 2048;
+                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)
+{
+        if (snd_sndstat_proc_entry) {
+                snd_info_unregister(snd_sndstat_proc_entry);
+                snd_sndstat_proc_entry = NULL;
+        }
+        return 0;
+}
+
+#endif /* CONFIG_SND_OSSEMUL */