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This file is part of Open Sound System.
Copyright (C) 4Front Technologies 1996-2008.
This this source file is released under GPL v2 license (no other versions). See the COPYING file included in the main directory of this source distribution for the license terms and conditions.
#include <oss_config.h> #include <midi_core.h> static char *sndstat_buf = NULL; static int sndstat_len, sndstat_ptr; static volatile int sndstat_busy = 0; int riptide_notice = 0; /* The Riptide driver will set this to 1 */
All kind of status messages
#define MAX_MESSAGE 50
static char *messages[MAX_MESSAGE];
static int nmessages; /* # of display messages (/dev/sndstat) */
static int
put_status (const char *s)
{
int l = strlen (s);
if (sndstat_len + l >= 4000)
return 0;
memcpy (&sndstat_buf[sndstat_len], s, l);
sndstat_len += l;
return 1;
}
static int
put_status_int (unsigned int val, int radix)
{
char buf[11], *rx = "%d";
if (!val)
return put_status ("0");
if (radix == 16)
rx = "%x";
sprintf (buf, rx, val);
return put_status (buf);
}
static void
init_status (void)
{
Write the status information to the sndstat_buf and update sndstat_len. There is a limit of 4000 bytes for the data.
int i, p, missing_devs = 0;
int notify = 0;
extern char *oss_license_string;
sndstat_ptr = 0;
put_status ("OSS " OSS_VERSION_STRING);
put_status (oss_license_string);
put_status (" (C) 4Front Technologies 1996-2009\n");
if (riptide_notice)
put_status ("RipTide Driver (C) 2000, Conexant Systems, Inc.\n");
#ifdef LICENSED_VERSION
oss_print_license (put_status, put_status_int);
#endif
#ifdef OSS_CONFIG_OPTIONS
put_status ("\nSource configration options: ");
put_status (OSS_CONFIG_OPTIONS);
put_status ("\n");
#endif
#ifdef OSS_HG_INFO
put_status ("\nHg revision: ");
put_status (OSS_HG_INFO);
put_status ("\n");
#endif
if (nmessages > 0)
{
put_status ("\n");
for (i = 0; i < nmessages; i++)
{
if (!put_status (messages[i]))
return;
}
put_status ("\n");
}
#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
{
#if defined(__FreeBSD__)
extern char version[];
#endif
put_status ("Kernel: ");
put_status (version);
put_status ("\n");
}
#endif
#if 0
This code is obsolete and not functional at this moment.
if (!put_status ("\nDevice objects:\n"))
return;
for (i = 0; i < oss_num_cards; i++)
{
char tmp[256];
oss_get_cardinfo (i, tmp, sizeof (tmp) - 1);
if (!put_status (tmp))
return;
if (!put_status ("\n"))
return;
}
#endif
if (!put_status ("\nAudio devices:\n"))
return;
missing_devs = 0;
if (audio_devfiles != NULL)
for (i = 0; i < MAX_AUDIO_DEVFILES +100 && missing_devs < 40; i++)
{
int j, d;
#if 0
if (i < num_audio_devfiles)
if (audio_devfiles[i]->card_number != cardno)
{
put_status (" \n");
cardno = audio_devfiles[i]->card_number;
}
#endif
New device numbering scheme may have /dev/dsp# devices in different order than the order of devices in audio_devices[]. Find the right device based on the adev->real_dev number. Note that device numbering may have holes if devices have been removed after running ossdevlinks -f last time.
d = -1;
for (j = 0; j < num_audio_devfiles; j++)
{
if (audio_devfiles[j]->real_dev == i)
{
if (j != i)
notify = 1;
d = audio_devfiles[j]->audio_devfile;
break;
}
}
if (d == -1)
{
missing_devs++;
continue;
}
if (missing_devs > 0) /* There is a hole in numbering */
for (j = i - missing_devs; j < i; j++)
{
notify = 1;
if (!put_status_int (j, 10))
return;
if (!put_status (": (Undefined or removed device)\n"))
return;
}
missing_devs = 0;
if (!put_status_int (i, 10))
return;
if (!put_status (": "))
return;
if (!audio_devfiles[d]->enabled || audio_devfiles[d]->unloaded)
put_status ("(");
if (!put_status (audio_devfiles[d]->name))
return;
if (!audio_devfiles[d]->enabled || audio_devfiles[d]->unloaded)
put_status (")");
if ((audio_devfiles[d]->flags & ADEV_DUPLEX)
|| (audio_devfiles[d]->flags & ADEV_NOINPUT)
|| (audio_devfiles[d]->flags & ADEV_NOOUTPUT))
{
int nn = 0;
if (!put_status (" ("))
return;
if (audio_devfiles[d]->flags & ADEV_NOINPUT)
{
if (nn++)
put_status (",");
if (!put_status ("OUTPUT"))
return;
}
if (audio_devfiles[d]->flags & ADEV_NOOUTPUT)
{
if (nn++)
put_status (",");
if (!put_status ("INPUT"))
return;
}
if (audio_devfiles[d]->flags & ADEV_DUPLEX)
{
if (nn++)
put_status (",");
if (!put_status ("DUPLEX"))
return;
}
if (!put_status (")"))
return;
}
if (!put_status ("\n"))
return;
{
adev_t *adev = audio_devfiles[d];
int n = 0, single = 0;
if (adev->next_out == NULL)
single = 1;
while (adev != NULL)
{
if (adev->open_mode != 0)
{
if (i < 10)
{
if (!put_status (" "))
return;
}
else
{
if (!put_status (" "))
return;
}
if (single)
{
put_status ("Opened ");
if (adev->open_mode & OPEN_READ)
put_status ("IN");
if (adev->open_mode & OPEN_WRITE)
put_status ("OUT");
put_status (" by ");
}
else
{
put_status ("Engine ");
put_status_int (n + 1, 10);
put_status (" opened ");
if (adev->open_mode & OPEN_READ)
put_status ("IN");
if (adev->open_mode & OPEN_WRITE)
put_status ("OUT");
put_status (" by ");
}
if (adev->pid != -1 || *adev->label != 0)
{
if (*adev->label != 0)
{
if (!put_status (adev->label))
return;
if (!put_status ("/"))
return;
}
put_status_int (adev->pid, 10);
}
else
{
if (!put_status ("unknown application"))
return;
}
if (!put_status (" @ "))
return;
if (!put_status_int (adev->user_parms.rate, 10))
return;
if (!put_status ("/"))
return;
if (!put_status_int (adev->hw_parms.rate, 10))
return;
if (!put_status (" Hz"))
return;
#if 1
if (!put_status (" Fragment: "))
return;
if (!put_status (audio_show_latency (adev->engine_num)))
return;
#endif
if (!put_status ("\n"))
return;
if (*adev->song_name != 0)
{
if (i < 10)
{
if (!put_status (" "))
return;
}
else
{
if (!put_status (" "))
return;
}
if (!put_status ("Song name: "))
return;
if (!put_status (adev->song_name))
return;
if (!put_status ("\n"))
return;
}
}
adev = adev->next_out;
n++;
}
}
}
#ifdef CONFIG_OSS_MIDI
if (!put_status ("\nMIDI devices:\n"))
return;
missing_devs = 0;
for (i = 0; i < MAX_MIDI_DEV * 2 && missing_devs < 16; i++)
{
int j, d = -1;
for (j = 0; j < num_mididevs; j++)
if (midi_devs[j]->real_dev == i)
{
d = j;
if (j != i)
notify = 1;
}
if (d == -1)
{
missing_devs++;
continue;
}
for (j = i - missing_devs; j < i; j++)
{
notify = 1;
if (!put_status_int (j, 10))
return;
if (!put_status (": (Unknown or removed device)\n"))
return;
}
missing_devs = 0;
if (!put_status_int (i, 10))
return;
if (!put_status (": "))
return;
if (!midi_devs[d]->enabled || midi_devs[d]->unloaded)
put_status ("(");
if (!put_status (midi_devs[d]->name))
return;
if (!midi_devs[d]->enabled || midi_devs[d]->unloaded)
put_status (")");
if (!put_status ("\n"))
return;
if (midi_devs[d]->pid != -1)
{
if (i < 10)
{
if (!put_status (" "))
return;
}
else
{
if (!put_status (" "))
return;
}
if (!put_status ("Open by "))
return;
if (!put_status_int (midi_devs[d]->pid, 10))
return;
if (*midi_devs[d]->cmd != 0)
{
if (!put_status ("/"))
return;
if (!put_status (midi_devs[d]->cmd))
return;
}
if (!put_status ("\n"))
return;
if (midi_devs[d]->d->ioctl)
{
oss_longname_t song_name;
if (midi_devs[d]->d->ioctl (d, SNDCTL_GETSONG,
(ioctl_arg) song_name) >= 0
&& *song_name != 0)
{
if (!put_status (" Song name: "))
return;
if (!put_status (song_name))
return;
if (!put_status ("\n"))
return;
}
}
}
}
#endif
#if 0
/* TODO: No timer available at this moment */
if (!put_status ("\nTimers:\n"))
return;
for (i = 0; i < oss_num_timers; i++)
{
if (!put_status_int (i, 10))
return;
if (!put_status (": "))
return;
if (!put_status (oss_timer_devs[i]->info.name))
return;
if (!put_status ("\n"))
return;
}
#endif
if (!put_status ("\nMixers:\n"))
return;
missing_devs = 0;
for (i = 0; i < MAX_MIXER_DEV * 2 && missing_devs < 10; i++)
{
int j, d = -1;
for (j = 0; j < num_mixers; j++)
if (mixer_devs[j]->real_dev == i)
{
if (j != i)
notify = 1;
d = j;
}
if (d == -1)
{
missing_devs++;
continue;
}
for (j = i - missing_devs; j < i; j++)
{
notify = 1;
if (!put_status_int (j, 10))
return;
if (!put_status (": (Uninstalled or removed device\n"))
return;
}
missing_devs = 0;
if (!put_status_int (i, 10))
return;
if (!put_status (": "))
return;
if (!mixer_devs[d]->enabled || mixer_devs[d]->unloaded)
if (!put_status ("("))
return;
if (!put_status (mixer_devs[d]->name))
return;
if (!mixer_devs[d]->enabled || mixer_devs[d]->unloaded)
if (!put_status (")"))
return;
if (!put_status ("\n"))
return;
}
#if 1
p = 0;
for (i = 0; i < OSS_HISTORY_SIZE; i++)
if (*oss_history[i] != 0)
p++;
if (p > 0)
#ifdef GET_PROCESS_UID
if (GET_PROCESS_UID () == 0)
#endif
{
if (!put_status ("\nHistory:\n"))
return;
p = oss_history_p;
for (i = 0; i < OSS_HISTORY_SIZE; i++)
{
int ix = (p + i) % OSS_HISTORY_SIZE;
if (*oss_history[ix] == 0)
continue;
if (!put_status (oss_history[ix]))
return;
if (!put_status ("\n"))
return;
}
}
#endif
#if 0
if (!put_status
("\n\nNOTICE! This /dev/sndstat file is obsolete - use the ossinfo command instead\n"))
return;
#endif
if (notify)
{
if (!put_status
("\n\nWARNING! Legacy device numbering in /dev/sndstat is different from actual device numbering\n"))
return;
}
put_status ("\n\nNOTICE! Device numbers shown above may be wrong.\n");
put_status (" Use the ossinfo command to find out the correct device names.\n");
sndstat_buf[sndstat_len] = 0;
}
void
store_msg (char *msg)
{
char *s;
if (strlen (msg) > 100 || nmessages >= MAX_MESSAGE)
return;
s = PMALLOC (NULL, strlen (msg) + 1);
if (s == NULL)
{
return;
}
strcpy (s, msg);
messages[nmessages++] = s;
}
static int
read_status (uio_t * buf, int count)
{
Return at most 'count' bytes from the sndstat_buf.
int l, c;
l = count;
c = sndstat_len - sndstat_ptr;
if (l > c)
l = c;
if (l <= 0)
return 0;
if (uiomove (&sndstat_buf[sndstat_ptr], l, UIO_READ, buf) != 0)
return OSS_EFAULT;
sndstat_ptr += l;
return l;
}
/*ARGSUSED*/
static int
sndstat_open (int dev, int dev_class, struct fileinfo *file,
int recursive, int open_flags, int *redirect)
{
/* TODO: Concurrency control */
if (sndstat_busy)
return OSS_EBUSY;
sndstat_busy = 1;
if ((sndstat_buf = KERNEL_MALLOC (4096)) == NULL)
{
sndstat_busy = 0;
return OSS_ENOMEM;
}
sndstat_len = 0;
init_status ();
sndstat_ptr = 0;
return 0;
}
/*ARGSUSED*/
static void
sndstat_close (int dev, struct fileinfo *file)
{
KERNEL_FREE (sndstat_buf);
sndstat_buf = NULL;
sndstat_busy = 0;
}
/*ARGSUSED*/
static int
sndstat_read (int dev, struct fileinfo *file, uio_t * buf, int count)
{
int l;
l = read_status (buf, count);
return l;
}
/*ARGSUSED*/
static int
sndstat_write (int dev, struct fileinfo *file, uio_t * buf, int count)
{
This dummy write routine will be used for some internal management purposes in the future. At this moment it just tells the osscore module that it should permit detaching itself.
#ifdef sun
extern int oss_detach_enabled;
oss_detach_enabled = 1;
return count;
#else
return OSS_EIO;
#endif
}
/*ARGSUSED*/
static int
sndstat_ioctl (int dev, struct fileinfo *bogus,
unsigned int cmd, ioctl_arg arg)
{
if (cmd == OSS_GETVERSION)
return *arg = OSS_VERSION;
return OSS_EINVAL;
}
static oss_cdev_drv_t sndstat_cdev_drv = {
sndstat_open,
sndstat_close,
sndstat_read,
sndstat_write,
sndstat_ioctl
};
void
install_sndstat (oss_device_t * osdev)
{
//static int already_installed=0;
// if (!already_installed++) // TODO: Is it necessaary to prevent loading sndstat multiple times?
oss_install_chrdev (osdev, "sndstat", OSS_DEV_STATUS, 0, &sndstat_cdev_drv,
0);
}