From d034cf40e56b09120dc35d432b7fdc536c54f6ec Mon Sep 17 00:00:00 2001
From: jhb <jhb@FreeBSD.org>
Date: Mon, 21 Jul 2014 02:17:28 +0000
Subject: MFC 264916,267611: Provide a very basic stub for the 8042 PS/2
 keyboard controller.

---
 usr.sbin/bhyve/atkbdc.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 usr.sbin/bhyve/atkbdc.c

(limited to 'usr.sbin/bhyve/atkbdc.c')

diff --git a/usr.sbin/bhyve/atkbdc.c b/usr.sbin/bhyve/atkbdc.c
new file mode 100644
index 0000000..6e13c19
--- /dev/null
+++ b/usr.sbin/bhyve/atkbdc.c
@@ -0,0 +1,85 @@
+/*-
+ * Copyright (c) 2014 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+
+#include <machine/vmm.h>
+
+#include <stdio.h>
+
+#include "inout.h"
+#include "pci_lpc.h"
+
+#define	KBD_DATA_PORT		0x60
+
+#define	KBD_STS_CTL_PORT	0x64
+#define	 KBD_SYS_FLAG		0x4
+
+#define	KBDC_RESET		0xfe
+
+static int
+atkbdc_data_handler(struct vmctx *ctx, int vcpu, int in, int port, int bytes,
+    uint32_t *eax, void *arg)
+{
+	if (bytes != 1)
+		return (INOUT_ERROR);
+
+	*eax = 0;
+
+	return (INOUT_OK);
+}
+
+static int
+atkbdc_sts_ctl_handler(struct vmctx *ctx, int vcpu, int in, int port,
+    int bytes, uint32_t *eax, void *arg)
+{
+	int retval;
+
+	if (bytes != 1)
+		return (INOUT_ERROR);
+
+	retval = INOUT_OK;
+	if (in) {
+		*eax = KBD_SYS_FLAG;	/* system passed POST */
+	} else {
+		switch (*eax) {
+		case KBDC_RESET:	/* Pulse "reset" line. */
+			retval = INOUT_RESET;
+			break;
+		}
+	}
+
+	return (retval);
+}
+
+INOUT_PORT(atkdbc, KBD_DATA_PORT, IOPORT_F_INOUT, atkbdc_data_handler);
+SYSRES_IO(KBD_DATA_PORT, 1);
+INOUT_PORT(atkbdc, KBD_STS_CTL_PORT,  IOPORT_F_INOUT,
+    atkbdc_sts_ctl_handler);
+SYSRES_IO(KBD_STS_CTL_PORT, 1);
-- 
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