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-rw-r--r--bsps/arm/csb337/umon/umoncons.c131
1 files changed, 131 insertions, 0 deletions
diff --git a/bsps/arm/csb337/umon/umoncons.c b/bsps/arm/csb337/umon/umoncons.c
new file mode 100644
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+++ b/bsps/arm/csb337/umon/umoncons.c
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+/*
+ * uMon Support Output Driver
+ *
+ * COPYRIGHT (c) 1989-2009.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * Modified by Fernando Nicodemos <fgnicodemos@terra.com.br>
+ * from NCB - Sistemas Embarcados Ltda. (Brazil)
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems/umon.h>
+#include <libchip/serial.h>
+#include <libchip/sersupp.h>
+
+/* static function prototypes */
+static int umoncons_first_open(int major, int minor, void *arg);
+static int umoncons_last_close(int major, int minor, void *arg);
+static int umoncons_read(int minor);
+static ssize_t umoncons_write(int minor, const char *buf, size_t len);
+static void umoncons_init(int minor);
+static void umoncons_write_polled(int minor, char c);
+static int umoncons_set_attributes(int minor, const struct termios *t);
+
+/* Pointers to functions for handling the UART. */
+const console_fns umoncons_fns =
+{
+ libchip_serial_default_probe,
+ umoncons_first_open,
+ umoncons_last_close,
+ umoncons_read,
+ umoncons_write,
+ umoncons_init,
+ umoncons_write_polled, /* not used in this driver */
+ umoncons_set_attributes,
+ false /* TRUE if interrupt driven, FALSE if not. */
+};
+
+/*********************************************************************/
+/* Functions called via callbacks (i.e. the ones in uart_fns */
+/*********************************************************************/
+
+/*
+ * This is called the first time each device is opened. Since
+ * the driver is polled, we don't have to do anything. If the driver
+ * were interrupt driven, we'd enable interrupts here.
+*/
+static int umoncons_first_open(int major, int minor, void *arg)
+{
+ return 0;
+}
+
+
+/*
+ * This is called the last time each device is closed. Since
+ * the driver is polled, we don't have to do anything. If the driver
+ * were interrupt driven, we'd disable interrupts here.
+*/
+static int umoncons_last_close(int major, int minor, void *arg)
+{
+ return 0;
+}
+
+
+/*
+ * Read one character from UART.
+ *
+ * return -1 if there's no data, otherwise return
+ * the character in lowest 8 bits of returned int.
+*/
+static int umoncons_read(int minor)
+{
+ if ( !mon_gotachar() )
+ return -1;
+ return mon_getchar();
+}
+
+
+/*
+ * Write buffer to LCD
+ *
+ * return 1 on success, -1 on error
+*/
+static ssize_t umoncons_write(int minor, const char *buf, size_t len)
+{
+ size_t i;
+
+ for ( i=0 ; i<len ; i++ )
+ mon_putchar( buf[i] );
+
+ return len;
+}
+
+
+/* Set up the uMon driver. */
+static void umoncons_init(int minor)
+{
+ rtems_umon_connect();
+}
+
+/* This is used for putchark support */
+static void umoncons_write_polled(int minor, char c)
+{
+ mon_putchar( c );
+}
+
+/* This is for setting baud rate, bits, etc. */
+static int umoncons_set_attributes(int minor, const struct termios *t)
+{
+ return 0;
+}
+
+/***********************************************************************/
+/*
+ * The following functions are not used by TERMIOS, but other RTEMS
+ * functions use them instead.
+ */
+/***********************************************************************/
+/*
+ * Read from UART. This is used in the exit code, and can't
+ * rely on interrupts.
+*/
+int umoncons_poll_read(int minor)
+{
+ if (!mon_gotachar())
+ return -1;
+ return mon_getchar();
+}