patch-1.3.69 linux/drivers/sound/pas2_pcm.c

• Lines: 75
• Date: Fri Feb 23 14:55:11 1996
• Orig file: v1.3.68/linux/drivers/sound/pas2_pcm.c
• Orig date: Wed Feb 14 14:37:15 1996

diff -u --recursive --new-file v1.3.68/linux/drivers/sound/pas2_pcm.c linux/drivers/sound/pas2_pcm.c
@@ -57,6 +57,7 @@
 static unsigned short pcm_bitsok = 8;	/* mask of OK bits */
 static int      pcm_busy = 0;
 static int      my_devnum = 0;
+static int      open_mode = 0;
 
 int
 pcm_set_speed (int arg)
@@ -258,6 +259,7 @@
 
 
   pcm_count = 0;
+  open_mode = mode;
 
   return 0;
 }
@@ -322,7 +324,6 @@
       pcm_count = count;
     }
   pas_write (pas_read (FILTER_FREQUENCY) | F_F_PCM_BUFFER_COUNTER | F_F_PCM_RATE_COUNTER, FILTER_FREQUENCY);
-  pas_write (pas_read (PCM_CONTROL) | P_C_PCM_ENABLE | P_C_PCM_DAC_MODE, PCM_CONTROL);
 
   pcm_mode = PCM_DAC;
 
@@ -369,18 +370,37 @@
       pcm_count = count;
     }
   pas_write (pas_read (FILTER_FREQUENCY) | F_F_PCM_BUFFER_COUNTER | F_F_PCM_RATE_COUNTER, FILTER_FREQUENCY);
-  pas_write ((pas_read (PCM_CONTROL) | P_C_PCM_ENABLE) & ~P_C_PCM_DAC_MODE, PCM_CONTROL);
 
   pcm_mode = PCM_ADC;
 
   restore_flags (flags);
 }
 
+static void
+pas_pcm_trigger (int dev, int state)
+{
+  unsigned long   flags;
+
+  save_flags (flags);
+  cli ();
+  state &= open_mode;
+
+  if (state & PCM_ENABLE_OUTPUT)
+    pas_write (pas_read (PCM_CONTROL) | P_C_PCM_ENABLE | P_C_PCM_DAC_MODE, PCM_CONTROL);
+  else if (state & PCM_ENABLE_INPUT)
+    pas_write ((pas_read (PCM_CONTROL) | P_C_PCM_ENABLE) & ~P_C_PCM_DAC_MODE, PCM_CONTROL);
+  else
+    pas_write (pas_read (PCM_CONTROL) & ~P_C_PCM_ENABLE, PCM_CONTROL);
+
+  restore_flags (flags);
+}
+
 static int
 pas_pcm_prepare_for_input (int dev, int bsize, int bcount)
 {
   return 0;
 }
+
 static int
 pas_pcm_prepare_for_output (int dev, int bsize, int bcount)
 {
@@ -403,7 +423,10 @@
   pas_pcm_reset,
   pas_pcm_reset,
   NULL,
-  NULL
+  NULL,
+  NULL,
+  NULL,
+  pas_pcm_trigger
 };
 
 long