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authorRusty Russell <rusty@rustcorp.com.au>2007-10-22 11:03:39 +1000
committerRusty Russell <rusty@rustcorp.com.au>2007-10-23 15:49:55 +1000
commit31610434bc3523c0b01a10917a1185096a03c4c8 (patch)
tree4b349e73a16e5ba997e0b80adec04f6bc0139163 /include/linux/virtio_console.h
parente467cde238184d1b0923db2cd61ae1c5a6dc15aa (diff)
Virtio console driver
This is an hvc-based virtio console driver. It's suboptimal becuase hvc expects to have raw access to interrupts and virtio doesn't assume that, so it currently polls. There are two solutions: expose hvc's "kick" interface, or wean off hvc. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/linux/virtio_console.h')
-rw-r--r--include/linux/virtio_console.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/virtio_console.h b/include/linux/virtio_console.h
new file mode 100644
index 000000000000..ed2d4ead7eb7
--- /dev/null
+++ b/include/linux/virtio_console.h
@@ -0,0 +1,12 @@
+#ifndef _LINUX_VIRTIO_CONSOLE_H
+#define _LINUX_VIRTIO_CONSOLE_H
+#include <linux/virtio_config.h>
+
+/* The ID for virtio console */
+#define VIRTIO_ID_CONSOLE 3
+
+#ifdef __KERNEL__
+int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int));
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_VIRTIO_CONSOLE_H */