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Gmane
From: Ondrej Zary <linux <at> rainbow-software.org>
Subject: [RFC PATCH v2] Resurrect Intel740 driver: i740fb
Newsgroups: gmane.linux.kernel
Date: Sunday 21st August 2011 20:42:06 UTC (over 5 years ago)
Hello,
this is an v2 attempt to resurrect an old (like 2.4.19) out-of-tree driver
for
Intel740 graphics cards and modify it for recent kernels. The old driver is
located at: http://sourceforge.net/projects/i740fbdev/files/

It was easier to create a new driver based on skeletonfb, using most of the
low level HW code from the old driver. The DDC code is completely new.

The driver was tested on two 8MB cards: ManLi and Diamond Stealth II G460

The i740_calc_fifo() function formatting is nice but does not pass
checkpatch. Making it checkpatch-compliant makes the code look ugly. How to
make it both nice and compatible with Linux coding style?
(the remaining // comments mark things that need attention - missing xpan
and suspend/resume)

Changes in v2:
- fixed 15bpp (16bpp 555) mode
- not working 1280x1024-32 is not a bug but card's feature, it's now
handled
  correctly by the driver
- 24bpp modes still don't work in fbtest but it looks like fbtest bug!

Is there any better way to test fb drivers than fbtest?

no signed-off-by yet

--- linux-2.6.39-rc2-orig/drivers/video/Kconfig	2011-04-06
03:30:43.000000000 +0200
+++ linux-2.6.39-rc2/drivers/video/Kconfig	2011-07-30 11:34:10.000000000
+0200
@@ -1117,6 +1117,17 @@ config FB_RIVA_BACKLIGHT
 	help
 	  Say Y here if you want to control the backlight of your display.
 
+config FB_I740
+	tristate "Intel740 support (EXPERIMENTAL)"
+	depends on EXPERIMENTAL && FB && PCI && X86_32 && AGP_INTEL
+	select FB_MODE_HELPERS
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
+	select VGASTATE
+	help
+	  This driver supports graphics cards based on Intel740 chip.
+
 config FB_I810
 	tristate "Intel 810/815 support (EXPERIMENTAL)"
 	depends on EXPERIMENTAL && FB && PCI && X86_32 && AGP_INTEL
--- /dev/null	2011-08-21 21:21:40.810604642 +0200
+++ linux-2.6.39-rc2/drivers/video/i740fb.c	2011-08-20 14:13:30.000000000
+0200
@@ -0,0 +1,1259 @@
+/*
+ * i740fb - framebuffer driver for Intel740
+ * Copyright (c) 2011 Ondrej Zary
+ *
+ * Based on old i740fb driver (c) 2001-2002 Andrey Ulanov
 which was partially based on:
+ *  VGA 16-color framebuffer driver (c) 1999 Ben Pfaff
 and Petr Vandrovec 
+ *  i740 driver from XFree86 (c) 1998-1999 Precision Insight, Inc., Cedar
Park, Texas.
+ *  i740fb by Patrick LERDA, v0.9
+ */
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
 
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