1 files changed, 114 insertions, 0 deletions
diff --git a/bsps/arm/raspberrypi/console/console_select.c b/bsps/arm/raspberrypi/console/console_select.c
new file mode 100644
index 0000000000..bd246ca868
--- /dev/null
+++ b/bsps/arm/raspberrypi/console/console_select.c
@@ -0,0 +1,114 @@
+/**
+ * @file
+ *
+ * @ingroup raspberrypi_console
+ *
+ * @brief console select
+ */
+
+/*
+ * Copyright (c) 2015 Yang Qiao
+ *
+ *  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 <bsp.h>
+#include <bsp/fatal.h>
+#include <rtems/libio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <termios.h>
+
+#include <rtems/termiostypes.h>
+#include <libchip/serial.h>
+#include "../../shared/dev/serial/legacy-console.h"
+#include <bsp/rpi-fb.h>
+
+rtems_device_minor_number BSPPrintkPort = 0;
+
+/*
+ * Method to return true if the device associated with the
+ * minor number probs available.
+ */
+static bool bsp_Is_Available( rtems_device_minor_number minor )
+{
+  console_tbl *cptr = Console_Port_Tbl[ minor ];
+
+  /*
+   * First perform the configuration dependent probe, then the
+   * device dependent probe
+   */
+  if ( ( !cptr->deviceProbe || cptr->deviceProbe( minor ) ) &&
+       cptr->pDeviceFns->deviceProbe( minor ) ) {
+    return true;
+  }
+
+  return false;
+}
+
+/*
+ * Method to return the first available device.
+ */
+static rtems_device_minor_number bsp_First_Available_Device( void )
+{
+  rtems_device_minor_number minor;
+
+  for ( minor = 0; minor < Console_Port_Count; minor++ ) {
+    console_tbl *cptr = Console_Port_Tbl[ minor ];
+
+    /*
+     * First perform the configuration dependent probe, then the
+     * device dependent probe
+     */
+
+    if ( ( !cptr->deviceProbe || cptr->deviceProbe( minor ) ) &&
+         cptr->pDeviceFns->deviceProbe( minor ) ) {
+      return minor;
+    }
+  }
+
+  /*
+   *  Error No devices were found.  We will want to bail here.
+   */
+  bsp_fatal( BSP_FATAL_CONSOLE_NO_DEV );
+}
+
+void bsp_console_select( void )
+{
+  /*
+   *  Reset Console_Port_Minor and
+   *  BSPPrintkPort here if desired.
+   *
+   *  This default version allows the bsp to set these
+   *  values at creation and will not touch them again
+   *  unless the selected port number is not available.
+   */
+  const char *opt;
+
+  Console_Port_Minor = BSP_CONSOLE_UART0;
+  BSPPrintkPort = BSP_CONSOLE_UART0;
+
+  opt = rpi_cmdline_get_arg( "--console=" );
+
+  if ( opt ) {
+    if ( strncmp( opt, "fbcons", sizeof( "fbcons" ) - 1 ) == 0 ) {
+      if ( rpi_video_is_initialized() > 0 ) {
+        Console_Port_Minor = BSP_CONSOLE_FB;
+        BSPPrintkPort = BSP_CONSOLE_FB;
+      }
+    }
+  }
+
+  /*
+   * If the device that was selected isn't available then
+   * let the user know and select the first available device.
+   */
+  if ( !bsp_Is_Available( Console_Port_Minor ) ) {
+    Console_Port_Minor = bsp_First_Available_Device();
+  }
+}