1 files changed, 142 insertions, 0 deletions
diff --git a/cfe/cfe/dev/dev_null.c b/cfe/cfe/dev/dev_null.c
new file mode 100644
index 0000000..d995919
--- /dev/null
+++ b/cfe/cfe/dev/dev_null.c
@@ -0,0 +1,142 @@
+/*  *********************************************************************
+    *  Broadcom Common Firmware Environment (CFE)
+    *  
+    *  Null console device			File: dev_null.c
+    *  
+    *  This is a null console device, useful for console-less
+    *  operation, or when using chip simulators.
+    *  
+    *  Author:  Mitch Lichtenberg (mpl@broadcom.com)
+    *  
+    *********************************************************************  
+    *
+    *  Copyright 2000,2001,2002,2003
+    *  Broadcom Corporation. All rights reserved.
+    *  
+    *  This software is furnished under license and may be used and 
+    *  copied only in accordance with the following terms and 
+    *  conditions.  Subject to these conditions, you may download, 
+    *  copy, install, use, modify and distribute modified or unmodified 
+    *  copies of this software in source and/or binary form.  No title 
+    *  or ownership is transferred hereby.
+    *  
+    *  1) Any source code used, modified or distributed must reproduce 
+    *     and retain this copyright notice and list of conditions 
+    *     as they appear in the source file.
+    *  
+    *  2) No right is granted to use any trade name, trademark, or 
+    *     logo of Broadcom Corporation.  The "Broadcom Corporation" 
+    *     name may not be used to endorse or promote products derived 
+    *     from this software without the prior written permission of 
+    *     Broadcom Corporation.
+    *  
+    *  3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR
+    *     IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED
+    *     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
+    *     PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT 
+    *     SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN 
+    *     PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT,
+    *     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
+    *     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+    *     GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+    *     BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 
+    *     OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 
+    *     TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF 
+    *     THE POSSIBILITY OF SUCH DAMAGE.
+    ********************************************************************* */
+
+
+
+#include "lib_types.h"
+#include "lib_malloc.h"
+#include "lib_printf.h"
+#include "cfe_iocb.h"
+#include "cfe_device.h"
+
+static void nulldrv_probe(cfe_driver_t *drv,
+			      unsigned long probe_a, unsigned long probe_b, 
+			      void *probe_ptr);
+
+
+static int nulldrv_open(cfe_devctx_t *ctx);
+static int nulldrv_read(cfe_devctx_t *ctx,iocb_buffer_t *buffer);
+static int nulldrv_inpstat(cfe_devctx_t *ctx,iocb_inpstat_t *inpstat);
+static int nulldrv_write(cfe_devctx_t *ctx,iocb_buffer_t *buffer);
+static int nulldrv_ioctl(cfe_devctx_t *ctx,iocb_buffer_t *buffer);
+static int nulldrv_close(cfe_devctx_t *ctx);
+
+const static cfe_devdisp_t nulldrv_dispatch = {
+    nulldrv_open,
+    nulldrv_read,
+    nulldrv_inpstat,
+    nulldrv_write,
+    nulldrv_ioctl,
+    nulldrv_close,	
+    NULL,
+    NULL
+};
+
+const cfe_driver_t nulldrv = {
+    "Null console device",
+    "null",
+    CFE_DEV_SERIAL,
+    &nulldrv_dispatch,
+    nulldrv_probe
+};
+
+
+static void nulldrv_probe(cfe_driver_t *drv,
+			      unsigned long probe_a, unsigned long probe_b, 
+			      void *probe_ptr)
+{
+    cfe_attach(drv,NULL,NULL,drv->drv_description);
+}
+
+
+static int nulldrv_open(cfe_devctx_t *ctx)
+{
+/*    nulldrv_t *softc = ctx->dev_softc; */
+
+    return 0;
+}
+
+static int nulldrv_read(cfe_devctx_t *ctx,iocb_buffer_t *buffer)
+{
+/*    nulldrv_t *softc = ctx->dev_softc; */
+
+    buffer->buf_retlen = buffer->buf_length;
+    return 0;
+}
+
+static int nulldrv_inpstat(cfe_devctx_t *ctx,iocb_inpstat_t *inpstat)
+{
+/*    nulldrv_t *softc = ctx->dev_softc; */
+
+    inpstat->inp_status = 0;
+
+    return 0;
+}
+
+static int nulldrv_write(cfe_devctx_t *ctx,iocb_buffer_t *buffer)
+{
+/*    nulldrv_t *softc = ctx->dev_softc; */
+
+    buffer->buf_retlen = buffer->buf_length;
+    return 0;
+}
+
+static int nulldrv_ioctl(cfe_devctx_t *ctx,iocb_buffer_t *buffer) 
+{
+/*    nulldrv_t *softc = ctx->dev_softc;*/
+
+    return -1;
+}
+
+static int nulldrv_close(cfe_devctx_t *ctx)
+{
+/*    nulldrv_t *softc = ctx->dev_softc; */
+
+    return 0;
+}
+
+