1 files changed, 114 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/erc32/console/debugputs.c b/c/src/lib/libbsp/sparc/erc32/console/debugputs.c
new file mode 100644
index 0000000000..35917747d1
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/erc32/console/debugputs.c
@@ -0,0 +1,114 @@
+/*
+ *  This file contains the TTY driver for the serial ports on the erc32.
+ *
+ *  This driver uses the termios pseudo driver.
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+/*
+ *  console_outbyte_polled
+ *
+ *  This routine transmits a character using polling.
+ */
+
+void console_outbyte_polled(
+  int  port,
+  char ch
+)
+{
+  if ( port == 0 ) {
+    while ( (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEA) == 0 );
+    ERC32_MEC.UART_Channel_A = (int) ch;
+    return;
+  }
+
+  while ( (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEB) == 0 );
+  ERC32_MEC.UART_Channel_B = (int) ch;
+}
+
+/*
+ *  console_inbyte_nonblocking 
+ *
+ *  This routine polls for a character.
+ */
+
+int console_inbyte_nonblocking( int port )
+{
+  int UStat;
+
+  UStat = ERC32_MEC.UART_Status;
+
+  switch (port) {
+
+    case 0:
+      if (UStat & ERC32_MEC_UART_STATUS_ERRA) {
+        ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRA;
+        ERC32_MEC.Control = ERC32_MEC.Control;
+      }
+
+      if ((UStat & ERC32_MEC_UART_STATUS_DRA) == 0)
+         return -1;
+      return (int) ERC32_MEC.UART_Channel_A;
+      return 1;
+
+    case 1:
+      if (UStat & ERC32_MEC_UART_STATUS_ERRB) {
+        ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRB;
+        ERC32_MEC.Control = ERC32_MEC.Control;
+      }
+
+      if ((UStat & ERC32_MEC_UART_STATUS_DRB) == 0)
+        return -1;
+      return (int) ERC32_MEC.UART_Channel_B;
+
+    default:
+      assert( 0 );
+  }
+
+  return -1;
+}
+
+/*
+ *  DEBUG_puts
+ *
+ *  This should be safe in the event of an error.  It attempts to insure
+ *  that no TX empty interrupts occur while it is doing polled IO.  Then
+ *  it restores the state of that external interrupt.
+ *
+ *  Input parameters:
+ *    string  - pointer to debug output string
+ *
+ *  Output parameters:  NONE
+ *
+ *  Return values:      NONE
+ */
+
+void DEBUG_puts(
+  char *string
+)
+{
+  char *s;
+  unsigned32 old_level;
+
+  ERC32_Disable_interrupt( ERC32_INTERRUPT_UART_A_RX_TX, old_level );
+    for ( s = string ; *s ; s++ ) 
+      console_outbyte_polled( 0, *s );
+
+    console_outbyte_polled( 0, '\r' );
+    console_outbyte_polled( 0, '\n' );
+  ERC32_Restore_interrupt( ERC32_INTERRUPT_UART_A_RX_TX, old_level );
+}