video: Support virtio devices with the splash screen

This is useful for showing a logo when booting from qemu.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/common/splash_source.c b/common/splash_source.c
index d05670f..2c03cbd 100644 (file)
--- a/common/splash_source.c
+++ b/common/splash_source.c
@@ -20,6 +20,7 @@
 #include <spi_flash.h>
 #include <splash.h>
 #include <usb.h>
+#include <virtio.h>
 #include <asm/global_data.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -179,6 +180,16 @@ static inline int splash_init_sata(void)
 }
 #endif
 
+static int splash_init_virtio(void)
+{
+       if (!IS_ENABLED(CONFIG_VIRTIO)) {
+               printf("Cannot load splash image: no virtio support\n");
+               return -ENOSYS;
+       } else {
+               return virtio_init();
+       }
+}
+
 #ifdef CONFIG_CMD_UBIFS
 static int splash_mount_ubifs(struct splash_location *location)
 {
@@ -233,6 +244,9 @@ static int splash_load_fs(struct splash_location *location, u32 bmp_load_addr)
        if (location->storage == SPLASH_STORAGE_SATA)
                res = splash_init_sata();
 
+       if (location->storage == SPLASH_STORAGE_VIRTIO)
+               res = splash_init_virtio();
+
        if (location->ubivol != NULL)
                res = splash_mount_ubifs(location);
 

diff --git a/include/splash.h b/include/splash.h
index 7fd2de8..33e45e6 100644 (file)
--- a/include/splash.h
+++ b/include/splash.h
@@ -30,6 +30,7 @@ enum splash_storage {
        SPLASH_STORAGE_MMC,
        SPLASH_STORAGE_USB,
        SPLASH_STORAGE_SATA,
+       SPLASH_STORAGE_VIRTIO,
 };
 
 enum splash_flags {

diff --git a/include/virtio.h b/include/virtio.h
index a42bdad..34e2bfd 100644 (file)
--- a/include/virtio.h
+++ b/include/virtio.h
@@ -20,6 +20,7 @@
 #ifndef __VIRTIO_H__
 #define __VIRTIO_H__
 
+#include <virtio_types.h>
 #include <linux/bitops.h>
 #include <linux/bug.h>
 #define VIRTIO_ID_NET          1 /* virtio net */