6081905edf
The fblog drivers provides a replacement for fbcon and prints all kernel log messages to all available framebuffer devices. As long as the driver is not upstream, I will keep it here for reference. See linux-serial@vger.kernel.org for discussion. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
61 lines
1.5 KiB
Diff
61 lines
1.5 KiB
Diff
From c0dbeaf1fa932dbae6027a49ddbff973b2689eea Mon Sep 17 00:00:00 2001
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From: David Herrmann <dh.herrmann@googlemail.com>
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Date: Sat, 16 Jun 2012 23:04:48 +0200
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Subject: [PATCH 05/10] fblog: add framebuffer helpers
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These helpers scan the system for all available framebuffers and register
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or unregister them. This is needed during startup and stopping fblog so we
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are aware of all connected displays.
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The third helper handles mode changes by rescanning the mode and adjusting
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the buffer size.
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Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
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---
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drivers/video/console/fblog.c | 29 +++++++++++++++++++++++++++++
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1 file changed, 29 insertions(+)
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diff --git a/drivers/video/console/fblog.c b/drivers/video/console/fblog.c
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index e790971..7d4032e 100644
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--- a/drivers/video/console/fblog.c
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+++ b/drivers/video/console/fblog.c
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@@ -399,6 +399,35 @@ static void fblog_unregister(struct fblog_fb *fb)
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kfree(fb);
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}
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+static void fblog_register_all(void)
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+{
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+ int i;
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+
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+ for (i = 0; i < FB_MAX; ++i)
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+ fblog_register(registered_fb[i]);
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+}
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+
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+static void fblog_unregister_all(void)
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+{
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+ int i;
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+
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+ for (i = 0; i < FB_MAX; ++i)
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+ fblog_unregister(fblog_info2fb(registered_fb[i]));
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+}
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+
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+static void fblog_refresh(struct fblog_fb *fb)
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+{
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+ unsigned int width, height;
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+
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+ if (!fb || !fb->font)
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+ return;
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+
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+ width = fb->info->var.xres / fb->font->width;
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+ height = fb->info->var.yres / fb->font->height;
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+ fblog_buf_resize(&fb->buf, width, height);
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+ fblog_redraw(fb);
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+}
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+
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static int __init fblog_init(void)
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{
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return 0;
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--
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1.7.10.4
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