patch-2.1.13 linux/drivers/sound/patmgr.c

• Lines: 293
• Date: Thu Jan 1 02:00:00 1970
• Orig file: v2.1.12/linux/drivers/sound/patmgr.c
• Orig date: Tue Oct 29 19:58:16 1996

diff -u --recursive --new-file v2.1.12/linux/drivers/sound/patmgr.c linux/drivers/sound/patmgr.c
@@ -1,292 +0,0 @@
-/*
- * sound/patmgr.c
- *
- * The patch manager interface for the /dev/sequencer
- */
-/*
- * Copyright (C) by Hannu Savolainen 1993-1996
- *
- * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
- * Version 2 (June 1991). See the "COPYING" file distributed with this software
- * for more info.
- */
-#include <linux/config.h>
-
-
-#define PATMGR_C
-#include "sound_config.h"
-
-#if defined(CONFIG_SEQUENCER)
-
-static struct wait_queue *server_procs[MAX_SYNTH_DEV] =
-{NULL};
-static volatile struct snd_wait server_wait_flag[MAX_SYNTH_DEV] =
-{
-  {0}};
-
-static struct patmgr_info *mbox[MAX_SYNTH_DEV] =
-{NULL};
-static volatile int msg_direction[MAX_SYNTH_DEV] =
-{0};
-
-static int      pmgr_opened[MAX_SYNTH_DEV] =
-{0};
-
-#define A_TO_S	1
-#define S_TO_A 	2
-
-static struct wait_queue *appl_proc = NULL;
-static volatile struct snd_wait appl_wait_flag =
-{0};
-
-int
-pmgr_open (int dev)
-{
-  if (dev < 0 || dev >= num_synths)
-    return -ENXIO;
-
-  if (pmgr_opened[dev])
-    return -EBUSY;
-  pmgr_opened[dev] = 1;
-
-  server_wait_flag[dev].opts = WK_NONE;
-
-  return 0;
-}
-
-void
-pmgr_release (int dev)
-{
-
-  if (mbox[dev])		/*
-				 * Killed in action. Inform the client
-				 */
-    {
-
-      mbox[dev]->key = PM_ERROR;
-      mbox[dev]->parm1 = -EIO;
-
-      if ((appl_wait_flag.opts & WK_SLEEP))
-	{
-	  appl_wait_flag.opts = WK_WAKEUP;
-	  wake_up (&appl_proc);
-	};
-    }
-
-  pmgr_opened[dev] = 0;
-}
-
-int
-pmgr_read (int dev, struct fileinfo *file, char *buf, int count)
-{
-  unsigned long   flags;
-  int             ok = 0;
-
-  if (count != sizeof (struct patmgr_info))
-    {
-      printk ("PATMGR%d: Invalid read count\n", dev);
-      return -EIO;
-    }
-
-  while (!ok && !(current->signal & ~current->blocked))
-    {
-      save_flags (flags);
-      cli ();
-
-      while (!(mbox[dev] && msg_direction[dev] == A_TO_S) &&
-	     !(current->signal & ~current->blocked))
-	{
-
-	  server_wait_flag[dev].opts = WK_SLEEP;
-	  interruptible_sleep_on (&server_procs[dev]);
-	  server_wait_flag[dev].opts &= ~WK_SLEEP;;
-	}
-
-      if (mbox[dev] && msg_direction[dev] == A_TO_S)
-	{
-	  {
-	    char           *fixit = (char *) mbox[dev];
-
-	    copy_to_user (&(buf)[0], fixit, count);
-	  };
-	  msg_direction[dev] = 0;
-	  ok = 1;
-	}
-
-      restore_flags (flags);
-
-    }
-
-  if (!ok)
-    return -EINTR;
-  return count;
-}
-
-int
-pmgr_write (int dev, struct fileinfo *file, const char *buf, int count)
-{
-  unsigned long   flags;
-
-  if (count < 4)
-    {
-      printk ("PATMGR%d: Write count < 4\n", dev);
-      return -EIO;
-    }
-
-  copy_from_user ((char *) mbox[dev], &(buf)[0], 4);
-
-  if (*(unsigned char *) mbox[dev] == SEQ_FULLSIZE)
-    {
-      int             tmp_dev;
-
-      tmp_dev = ((unsigned short *) mbox[dev])[2];
-      if (tmp_dev != dev)
-	return -ENXIO;
-
-      return synth_devs[dev]->load_patch (dev, *(unsigned short *) mbox[dev],
-					  buf, 4, count, 1);
-    }
-
-  if (count != sizeof (struct patmgr_info))
-    {
-      printk ("PATMGR%d: Invalid write count\n", dev);
-      return -EIO;
-    }
-
-  /*
-   * If everything went OK, there should be a preallocated buffer in the
-   * mailbox and a client waiting.
-   */
-
-  save_flags (flags);
-  cli ();
-
-  if (mbox[dev] && !msg_direction[dev])
-    {
-      copy_from_user (&((char *) mbox[dev])[4], &(buf)[4], count - 4);
-      msg_direction[dev] = S_TO_A;
-
-      if ((appl_wait_flag.opts & WK_SLEEP))
-	{
-	  {
-	    appl_wait_flag.opts = WK_WAKEUP;
-	    wake_up (&appl_proc);
-	  };
-	}
-    }
-
-  restore_flags (flags);
-
-  return count;
-}
-
-int
-pmgr_access (int dev, struct patmgr_info *rec)
-{
-  unsigned long   flags;
-  int             err = 0;
-
-  save_flags (flags);
-  cli ();
-
-  if (mbox[dev])
-    printk ("  PATMGR: Server %d mbox full. Why?\n", dev);
-  else
-    {
-      rec->key = PM_K_COMMAND;
-      mbox[dev] = rec;
-      msg_direction[dev] = A_TO_S;
-
-      if ((server_wait_flag[dev].opts & WK_SLEEP))
-	{
-	  {
-	    server_wait_flag[dev].opts = WK_WAKEUP;
-	    wake_up (&server_procs[dev]);
-	  };
-	}
-
-
-      appl_wait_flag.opts = WK_SLEEP;
-      interruptible_sleep_on (&appl_proc);
-      appl_wait_flag.opts &= ~WK_SLEEP;;
-
-      if (msg_direction[dev] != S_TO_A)
-	{
-	  rec->key = PM_ERROR;
-	  rec->parm1 = -EIO;
-	}
-      else if (rec->key == PM_ERROR)
-	{
-	  err = rec->parm1;
-	  if (err > 0)
-	    err = -err;
-	}
-
-      mbox[dev] = NULL;
-      msg_direction[dev] = 0;
-    }
-
-  restore_flags (flags);
-
-  return err;
-}
-
-int
-pmgr_inform (int dev, int event, unsigned long p1, unsigned long p2,
-	     unsigned long p3, unsigned long p4)
-{
-  unsigned long   flags;
-  int             err = 0;
-
-  struct patmgr_info *tmp_mbox;
-
-  if (!pmgr_opened[dev])
-    return 0;
-
-  tmp_mbox = (struct patmgr_info *) vmalloc (sizeof (struct patmgr_info));
-
-  if (tmp_mbox == NULL)
-    {
-      printk ("pmgr: Couldn't allocate memory for a message\n");
-      return 0;
-    }
-
-  save_flags (flags);
-  cli ();
-
-  if (mbox[dev])
-    printk ("  PATMGR: Server %d mbox full. Why?\n", dev);
-  else
-    {
-
-      mbox[dev] = tmp_mbox;
-      mbox[dev]->key = PM_K_EVENT;
-      mbox[dev]->command = event;
-      mbox[dev]->parm1 = p1;
-      mbox[dev]->parm2 = p2;
-      mbox[dev]->parm3 = p3;
-      msg_direction[dev] = A_TO_S;
-
-      if ((server_wait_flag[dev].opts & WK_SLEEP))
-	{
-	  {
-	    server_wait_flag[dev].opts = WK_WAKEUP;
-	    wake_up (&server_procs[dev]);
-	  };
-	}
-
-
-      appl_wait_flag.opts = WK_SLEEP;
-      interruptible_sleep_on (&appl_proc);
-      appl_wait_flag.opts &= ~WK_SLEEP;;
-      mbox[dev] = NULL;
-      msg_direction[dev] = 0;
-    }
-
-  restore_flags (flags);
-  vfree (tmp_mbox);
-
-  return err;
-}
-
-#endif