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- #include <linux/slab.h>
- #include <linux/time.h>
- #include <linux/string.h>
- #include <linux/export.h>
- #include <sound/core.h>
- #include <sound/minors.h>
- #include <sound/info.h>
- #include <linux/utsname.h>
- #include <linux/mutex.h>
- 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) {
- 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);
- 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);
- }
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