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From: Juli Mallett <jmallett@FreeBSD.org>
Date: Mon, 29 Oct 2012 07:06:24 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r242302 - head/sys/mips/cavium
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Author: jmallett
Date: Mon Oct 29 07:06:23 2012
New Revision: 242302
URL: http://svn.freebsd.org/changeset/base/242302

Log:
  Add a sysctl to change the LED display.

Modified:
  head/sys/mips/cavium/octeon_machdep.c

Modified: head/sys/mips/cavium/octeon_machdep.c
==============================================================================
--- head/sys/mips/cavium/octeon_machdep.c	Mon Oct 29 06:31:51 2012	(r242301)
+++ head/sys/mips/cavium/octeon_machdep.c	Mon Oct 29 07:06:23 2012	(r242302)
@@ -45,6 +45,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/ptrace.h>
 #include <sys/reboot.h>
 #include <sys/signalvar.h>
+#include <sys/sysctl.h>
 #include <sys/sysent.h>
 #include <sys/sysproto.h>
 #include <sys/time.h>
@@ -366,6 +367,46 @@ octeon_get_timecount(struct timecounter 
 	return ((unsigned)octeon_get_ticks());
 }
 
+static int
+sysctl_machdep_led_display(SYSCTL_HANDLER_ARGS)
+{
+	size_t buflen;
+	char buf[9];
+	int error;
+
+	if (req->newptr == NULL)
+		return (EINVAL);
+
+	if (cvmx_sysinfo_get()->led_display_base_addr == 0)
+		return (ENODEV);
+
+	/*
+	 * Revision 1.x of the EBT3000 only supports 4 characters, but
+	 * other devices support 8.
+	 */
+	if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_EBT3000 &&
+	    cvmx_sysinfo_get()->board_rev_major == 1)
+		buflen = 4;
+	else
+		buflen = 8;
+
+	if (req->newlen > buflen)
+		return (E2BIG);
+
+	error = SYSCTL_IN(req, buf, req->newlen);
+	if (error != 0)
+		return (error);
+
+	buf[req->newlen] = '\0';
+	ebt3000_str_write(buf);
+
+	return (0);
+}
+
+SYSCTL_PROC(_machdep, OID_AUTO, led_display, CTLTYPE_STRING | CTLFLAG_WR,
+    NULL, 0, sysctl_machdep_led_display, "A",
+    "String to display on LED display");
+
 /**
  * version of printf that works better in exception context.
  *