From 994efacdf9a087b52f71e620b58dfa526b0cf928 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Fri, 9 Feb 2007 09:46:45 +0000 Subject: [PATCH] backlight/fbcon: Add FB_EVENT_CONBLANK The backlight class wants notification whenever the console is blanked but doesn't get this when hardware blanking fails and software blanking is used. Changing FB_EVENT_BLANK to report both would be a behaviour change which could confuse the console layer so add a new event for software blanking and have the backlight class listen for both. Signed-off-by: Richard Purdie --- drivers/video/backlight/backlight.c | 2 +- drivers/video/console/fbcon.c | 7 +++++++ include/linux/fb.h | 4 +++- 3 files changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index 4f987c40b72..5490b2ae513 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -28,7 +28,7 @@ static int fb_notifier_callback(struct notifier_block *self, struct fb_event *evdata = data; /* If we aren't interested in this event, skip it immediately ... */ - if (event != FB_EVENT_BLANK) + if (event != FB_EVENT_BLANK && event != FB_EVENT_CONBLANK) return 0; bd = container_of(self, struct backlight_device, fb_notif); diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index be3f2c3f132..0429fd2cece 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -2233,6 +2233,8 @@ static int fbcon_switch(struct vc_data *vc) static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info, int blank) { + struct fb_event event; + if (blank) { unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff; @@ -2243,6 +2245,11 @@ static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info, fbcon_clear(vc, 0, 0, vc->vc_rows, vc->vc_cols); vc->vc_video_erase_char = oldc; } + + + event.info = info; + event.data = ␣ + fb_notifier_call_chain(FB_EVENT_CONBLANK, &event); } static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch) diff --git a/include/linux/fb.h b/include/linux/fb.h index a78e25683f8..bf7158b59b2 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -516,13 +516,15 @@ struct fb_cursor_user { #define FB_EVENT_GET_CONSOLE_MAP 0x07 /* CONSOLE-SPECIFIC: set console to framebuffer mapping */ #define FB_EVENT_SET_CONSOLE_MAP 0x08 -/* A display blank is requested */ +/* A hardware display blank change occured */ #define FB_EVENT_BLANK 0x09 /* Private modelist is to be replaced */ #define FB_EVENT_NEW_MODELIST 0x0A /* The resolution of the passed in fb_info about to change and all vc's should be changed */ #define FB_EVENT_MODE_CHANGE_ALL 0x0B +/* A software display blank change occured */ +#define FB_EVENT_CONBLANK 0x0C struct fb_event { struct fb_info *info; -- 2.41.0