[fb] Output klog to fb if video exists

If there's no video, do as we did before, otherwise route logs to the fb driver instead. (Need to clean this up to just have a log consumer general interface?) Also added a "scrollback" class to fb driver and updated the system_get_log syscall.
2021-01-03 18:13:41 -08:00
parent dccb136c99
commit e477dea5c7
12 changed files with 181 additions and 29 deletions
--- a/modules.yaml
+++ b/modules.yaml
@@ -94,6 +94,7 @@ modules:
            - src/drivers/fb/font.cpp
            - src/drivers/fb/main.cpp
            - src/drivers/fb/screen.cpp
+            - src/drivers/fb/scrollback.cpp

    kutil:
        kind: lib