2009-06-02 Joel Sherrill <joel.sherrill@OARcorp.com>

	* Makefile.am, configure.ac, preinstall.am, console/uarts.c,
	include/bsp.h, startup/memmap.c: Add support for /dev/fbcons which is
	a console type output only device to print to the LCD screen. The
	video controller (SED) and fonts are copied from MicroMonitor and
	proper attribution is made in those files and confirmed by Ed Sutter.
	* console/fbcons.c, console/font8x16.h, console/sed1356.c,
	console/sed1356_16bit.h, include/sed1356.h: New files.

1 files changed, 138 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/arm/csb337/console/fbcons.c b/c/src/lib/libbsp/arm/csb337/console/fbcons.c
new file mode 100644
index 0000000000..a0967d1932
--- /dev/null
+++ b/c/src/lib/libbsp/arm/csb337/console/fbcons.c
@@ -0,0 +1,138 @@
+/*
+ *  LCD Console Output Driver for CSBx37
+ *
+ *  COPYRIGHT (c) 1989-2009.
+ *  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.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <termios.h>
+
+#include <rtems/bspIo.h>
+#include <libchip/serial.h>
+#include <libchip/sersupp.h>
+#include "sed1356.h"
+
+/* static function prototypes */
+static int     fbcons_first_open(int major, int minor, void *arg);
+static int     fbcons_last_close(int major, int minor, void *arg);
+static int     fbcons_read(int minor);
+static int     fbcons_write(int minor, const char *buf, int len);
+static void    fbcons_init(int minor);
+static void    fbcons_write_polled(int minor, char c);
+static int     fbcons_set_attributes(int minor, const struct termios *t);
+
+/* Pointers to functions for handling the UART. */
+console_fns fbcons_fns = 
+{ 
+  libchip_serial_default_probe,
+  fbcons_first_open,
+  fbcons_last_close,
+  fbcons_read,
+  fbcons_write,
+  fbcons_init,
+  fbcons_write_polled,   /* not used in this driver */
+  fbcons_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 fbcons_first_open(int major, int minor, void *arg) 
+{
+  /* printk( "Frame buffer -- first open\n" ); */
+  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 fbcons_last_close(int major, int minor, void *arg) 
+{
+  /* printk( "Frame buffer -- last close\n" ); */
+  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 fbcons_read(int minor) 
+{
+  /* printk( "Frame buffer -- read\n" ); */
+  return -1;
+}
+
+
+/* 
+ * Write buffer to LCD 
+ *
+ * return 1 on success, -1 on error
+ */
+static int fbcons_write(int minor, const char *buf, int len)
+{
+  int i;
+
+  /* printk( "Frame buffer -- write\n" ); */
+  for ( i=0 ; i<len ; i++ )
+    sed_putchar( buf[i] );
+
+  return 1;
+}
+
+
+/* Set up the LCD controller. */
+static void fbcons_init(int minor)
+{
+  /* printk( "Initializing frame buffer\n" ); */
+  sed_init();
+}
+
+/* This is used for putchark support */
+static void fbcons_write_polled(int minor, char c)
+{
+  /* printk( "frame buffer -- write polled\n" ); */
+  sed_putchar( c );
+}
+
+/* This is for setting baud rate, bits, etc. */
+static int fbcons_set_attributes(int minor, const struct termios *t) 
+{
+  /* printk( "frame buffer -- set attributes\n" ); */
+  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 fbcons_poll_read(int minor)
+{
+  /* printk( "frame buffer -- poll read\n" ); */
+  return -1;
+}