From 8e92d6b3e8d6ac0625356f058da6ddae316e2cdc Mon Sep 17 00:00:00 2001
From: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Date: Mon, 10 Oct 2016 16:47:06 +0530
Subject: Add virtio-serial device support

Add support for virtio serial device to be used as a console device.
Currently, SLOF only supports spapr-vty device. With this addition
virtio console can be used during boot.

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
 lib/libvirtio/virtio.code | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

(limited to 'lib/libvirtio/virtio.code')

diff --git a/lib/libvirtio/virtio.code b/lib/libvirtio/virtio.code
index 8eec8f0..5cfffcc 100644
--- a/lib/libvirtio/virtio.code
+++ b/lib/libvirtio/virtio.code
@@ -15,6 +15,7 @@
 #include <virtio-9p.h>
 #include <virtio-scsi.h>
 #include <virtio-net.h>
+#include <virtio-serial.h>
 
 /******** core virtio ********/
 
@@ -165,3 +166,35 @@ PRIM(virtio_X2d_net_X2d_write)
 	TOS.n = virtionet_write(TOS.a, len);
 }
 MIRP
+
+/*********** virtio-serial ***********/
+// : virtio-serial-init ( dev -- false | true)
+PRIM(virtio_X2d_serial_X2d_init)
+	void *dev = TOS.a;
+	TOS.u = virtio_serial_init(dev);
+MIRP
+
+// : virtio-serial-shutdown ( dev -- )
+PRIM(virtio_X2d_serial_X2d_shutdown)
+	void *dev = TOS.a; POP;
+	virtio_serial_shutdown(dev);
+MIRP
+
+// : virtio-serial-putchar ( dev char -- )
+PRIM(virtio_X2d_serial_X2d_putchar)
+	unsigned long c = TOS.n; POP;
+	void *dev = TOS.a; POP;
+	virtio_serial_putchar(dev, c);
+MIRP
+
+// : virtio-serial-getchar ( dev -- char)
+PRIM(virtio_X2d_serial_X2d_getchar)
+	void *dev = TOS.a;
+	TOS.n = virtio_serial_getchar(dev);
+MIRP
+
+// : virtio-serial-haschar ( dev -- true | false)
+PRIM(virtio_X2d_serial_X2d_haschar)
+	void *dev = TOS.a;
+	TOS.n = virtio_serial_haschar(dev);
+MIRP
-- 
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