NSH: Add an option to take stdin from a USB keyboard device

2025-10-18 17:32:09 +08:00 · 2014-07-03 16:25:02 -06:00
parent 5535a8a306
commit 9a49735c4b
8 changed files with 452 additions and 88 deletions
--- a/nshlib/nsh_usbtrace.c
+++ b/nshlib/nsh_usbtrace.c
@@ -0,0 +1,127 @@
+/****************************************************************************
+ * apps/nshlib/nsh_usbtrace.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY 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) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+#include <debug.h>
+
+#include <nuttx/usb/usbdev_trace.h>
+
+#ifdef CONFIG_NSH_USBDEV_TRACE
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+/* Output USB trace data to the console device using printf() unless (1)
+ * debug is enabled, then we want to keep the trace output in sync with the
+ * debug output by using syslog()we are using a USB console.  In that case,
+ * we don't want the trace output on the USB console; let's try sending it
+ * a SYSLOG device (hopefully one is set up!)
+ */
+
+#if defined(CONFIG_DEBUG) || defined(HAVE_USB_CONSOLE)
+#  define trmessage syslog
+#else
+#  define trmessage printf
+#endif
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nsh_tracecallback
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nsh_tracecallback
+ *
+ * Description:
+ *   This is part of the USB trace logic
+ *
+ ****************************************************************************/
+
+static int nsh_tracecallback(struct usbtrace_s *trace, void *arg)
+{
+  usbtrace_trprintf((trprintf_t)trmessage, trace->event, trace->value);
+  return 0;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nsh_usbtrace
+ *
+ * Description:
+ *   The function is called from the nsh_session() to dump USB data to the
+ *   SYSLOG device.
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Values:
+ *   None
+ *
+ ****************************************************************************/
+
+void nsh_usbtrace(void)
+{
+  (void)usbtrace_enumerate(nsh_tracecallback, NULL);
+}
+
+#endif /* CONFIG_NSH_USBDEV_TRACE */