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authorJoel Sherrill <joel.sherrill@OARcorp.com>2000-11-13 22:40:29 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2000-11-13 22:40:29 +0000
commitb21b0ab3e77d91fc32e4324d3dfaf57ce24096ab (patch)
treef20f740d0789c29c4ee5784b1455ef841c14ae36 /c/src/lib/libbsp/sparc/leon/console/debugputs.c
parent2000-11-13 Jiri Gaisler <jgais@ws.estec.esa.nl> (diff)
downloadrtems-b21b0ab3e77d91fc32e4324d3dfaf57ce24096ab.tar.bz2
2000-11-13 Jiri Gaisler <jgais@ws.estec.esa.nl>
* .cvsignore, ChangeLog, Makefile.am, README, bsp_specs, configure.in, times, clock/.cvsignore, clock/Makefile.am, clock/ckinit.c, console/.cvsignore, console/Makefile.am, console/console.c, console/consolereserveresources.c, console/debugputs.c, gnatsupp/.cvsignore, gnatsupp/Makefile.am, gnatsupp/gnatsupp.c, include/.cvsignore, include/Makefile.am, include/bsp.h, include/coverhd.h, include/leon.h, start/.cvsignore, start/Makefile.am, startup/.cvsignore, startup/Makefile.am, startup/boardinit.S, startup/linkcmds, startup/setvec.c, startup/spurious.c, timer/.cvsignore, timer/Makefile.am, timer/timer.c, tools/.cvsignore, tools/Makefile.am, tools/configure.in, tools/runtest.in, wrapup/.cvsignore, wrapup/Makefile.am: New file.
Diffstat (limited to 'c/src/lib/libbsp/sparc/leon/console/debugputs.c')
-rw-r--r--c/src/lib/libbsp/sparc/leon/console/debugputs.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/leon/console/debugputs.c b/c/src/lib/libbsp/sparc/leon/console/debugputs.c
new file mode 100644
index 0000000000..71b5c8debf
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/leon/console/debugputs.c
@@ -0,0 +1,109 @@
+/*
+ * This file contains the TTY driver for the serial ports on the LEON.
+ *
+ * This driver uses the termios pseudo driver.
+ *
+ * COPYRIGHT (c) 1989-1999.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * 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 ( (LEON_REG.UART_Status_1 & LEON_REG_UART_STATUS_THE) == 0 );
+ LEON_REG.UART_Channel_1 = (int) ch;
+ return;
+ }
+
+ while ( (LEON_REG.UART_Status_2 & LEON_REG_UART_STATUS_THE) == 0 );
+ LEON_REG.UART_Channel_2 = (int) ch;
+}
+
+/*
+ * console_inbyte_nonblocking
+ *
+ * This routine polls for a character.
+ */
+
+int console_inbyte_nonblocking( int port )
+{
+
+ switch (port) {
+
+ case 0:
+ if (LEON_REG.UART_Status_1 & LEON_REG_UART_STATUS_ERR) {
+ LEON_REG.UART_Status_1 = ~LEON_REG_UART_STATUS_ERR;
+ }
+
+ if ((LEON_REG.UART_Status_1 & LEON_REG_UART_STATUS_DR) == 0)
+ return -1;
+ return (int) LEON_REG.UART_Channel_1;
+ return 1;
+
+ case 1:
+ if (LEON_REG.UART_Status_2 & LEON_REG_UART_STATUS_ERR) {
+ LEON_REG.UART_Status_2 = ~LEON_REG_UART_STATUS_ERR;
+ }
+
+ if ((LEON_REG.UART_Status_2 & LEON_REG_UART_STATUS_DR) == 0)
+ return -1;
+ return (int) LEON_REG.UART_Channel_2;
+
+ 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;
+
+ LEON_Disable_interrupt( LEON_INTERRUPT_UART_1_RX_TX, old_level );
+ LEON_REG.UART_Control_1 = LEON_REG_UART_CTRL_TE;
+ for ( s = string ; *s ; s++ )
+ console_outbyte_polled( 0, *s );
+
+ console_outbyte_polled( 0, '\r' );
+ console_outbyte_polled( 0, '\n' );
+ LEON_Restore_interrupt( LEON_INTERRUPT_UART_1_RX_TX, old_level );
+}