Initial bhyve native graphics support.

This adds emulations for a raw framebuffer device, PS2 keyboard/mouse,
XHCI USB controller and a USB tablet.

A simple VNC server is provided for keyboard/mouse input, and graphics
output.

A VGA emulation is included, but is currently disconnected until an
additional bhyve change to block out VGA memory is committed.

Credits:
 - raw framebuffer, VNC server, XHCI controller, USB bus/device emulation
    and UEFI f/w support by Leon Dang
 - VGA, console/g, initial VNC server  by tychon@
 - PS2 keyboard/mouse jointly done by tychon@ and Leon Dang
 - hypervisor framebuffer mem support by neel@

Tested by: Michael Dexter, in a number of revisions of this code.

With the appropriate UEFI image, FreeBSD, Windows and Linux guests can
installed and run in graphics mode using the UEFI/GOP framebuffer.

1 files changed, 76 insertions, 0 deletions

diff --git a/usb_emul.c b/usb_emul.c
new file mode 100644
index 000000000000..3dc12a5c3c1b
--- /dev/null
+++ b/usb_emul.c
@@ -0,0 +1,76 @@
+/*-
+ * Copyright (c) 2014 Nahanni Systems Inc.
+ * 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 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 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 <sys/queue.h>
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+
+#include "usb_emul.h"
+
+SET_DECLARE(usb_emu_set, struct usb_devemu);
+
+struct usb_devemu *
+usb_emu_finddev(char *name)
+{
+	struct usb_devemu **udpp, *udp;
+
+	SET_FOREACH(udpp, usb_emu_set) {
+		udp = *udpp;
+		if (!strcmp(udp->ue_emu, name))
+			return (udp);
+	}
+
+	return (NULL);
+}
+
+struct usb_data_xfer_block *
+usb_data_xfer_append(struct usb_data_xfer *xfer, void *buf, int blen,
+                     void *hci_data, int ccs)
+{
+	struct usb_data_xfer_block *xb;
+
+	if (xfer->ndata >= USB_MAX_XFER_BLOCKS)
+		return (NULL);
+
+	xb = &xfer->data[xfer->tail];
+	xb->buf = buf;
+	xb->blen = blen;
+	xb->hci_data = hci_data;
+	xb->ccs = ccs;
+	xb->processed = 0;
+	xb->bdone = 0;
+	xfer->ndata++;
+	xfer->tail = (xfer->tail + 1) % USB_MAX_XFER_BLOCKS;
+	return (xb);
+}