first commit

.gitignore

@@ -1,17 +1,87 @@
-# Object files
+# This file is copied from the Linux kernel sources
+#
+# NOTE! Don't add files that are generated in specific
+# subdirectories here. Add them in the ".gitignore" file
+# in that subdirectory instead.
+#
+# NOTE! Please use 'git ls-files -i --exclude-standard'
+# command after changing this file, to see if there are
+# any tracked files which get ignored after the change.
+#
+# Normal rules
+#
+.*
 *.o
-
-# Libraries
-*.lib
+*.o.*
 *.a
-
-# Shared objects (inc. Windows DLLs)
-*.dll
+*.s
+*.ko
 *.so
-*.so.*
-*.dylib
+*.so.dbg
+*.mod.c
+*.i
+*.lst
+*.symtypes
+*.order
+modules.builtin
+*.elf
+*.bin
+*.gz
+*.bz2
+*.lzma
+*.xz
+*.lzo
+*.patch
+*.gcno
+
+#
+# Top-level generic files
+#
+/tags
+/TAGS
+/linux
+/vmlinux
+/vmlinuz
+/System.map
+/Module.markers
+/Module.symvers
+
+#
+# Debian directory (make deb-pkg)
+#
+/debian/
+
+#
+# git files that we don't want to ignore even it they are dot-files
+#
+!.gitignore
+!.mailmap
+
+#
+# Generated include files
+#
+include/config
+include/linux/version.h
+include/generated
+arch/*/include/generated
+
+# stgit generated dirs
+patches-*
+
+# quilt's files
+patches
+series
+
+# cscope files
+cscope.*
+ncscope.*
+
+# gnu global files
+GPATH
+GRTAGS
+GSYMS
+GTAGS
 
-# Executables
-*.exe
-*.out
-*.app
+*.orig
+*~
+\#*#

Kconfig

@@ -0,0 +1,20 @@
+menuconfig FB_TFT_SUPPORT
+	tristate "Support for small TFT LCD display modules"
+	depends on FB && SPI && GPIOLIB
+	select FB_SYS_FILLRECT
+	select FB_SYS_COPYAREA
+	select FB_SYS_IMAGEBLIT
+	select FB_SYS_FOPS
+	select FB_DEFERRED_IO
+
+config FB_ADAFRUIT22
+	tristate "FB driver for the Adafruit 2.2\" LCD display"
+	depends on FB_TFT_SUPPORT
+	help
+	  Framebuffer support for the Adafruit 2.2\" LCD display in 9-bit SPI mode.
+
+config FB_SAINSMART18
+	tristate "FB driver for the Sainsmart 1.8\" LCD display"
+	depends on FB_TFT_SUPPORT
+	help
+	  Framebuffer support for the Sainsmart 1.8\" LCD display in 8-bit SPI mode.

Makefile

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+# If KERNELRELEASE is defined, we've been invoked from the
+# kernel build system and can use its language.
+ifneq ($(KERNELRELEASE),)
+obj-m := fbtft.o
+
+obj-m += adafruit22fb.o
+obj-m += sainsmart18fb.o
+
+obj-m += spidevices.o
+
+#obj-$(CONFIG_FB_TFT_SUPPORT)      += fbtft.o
+#obj-$(CONFIG_FB_ADAFRUIT22)       += adafruit22fb.o
+#obj-$(CONFIG_FB_SAINSMART18)       += sainsmart18fb.o
+
+# Otherwise we were called directly from the command
+# line; invoke the kernel build system.
+else
+	KERNELDIR ?= /lib/modules/$(shell uname -r)/build
+	PWD  := $(shell pwd)
+default:
+	$(MAKE) -C $(KERNELDIR) M=$(PWD) modules
+endif

README

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+  FBTFT
+=========
+
+Linux Framebuffer drivers for small TFT LCD display modules.
+The drivers uses a module 'fbft' which makes writing these drivers very simple.
+
+Development is done on a Raspberry Pi running the Raspbian "wheezy" distribution.
+
+# uname -r
+3.2.27+
+
+
+SUPPORTED LCD MODULES
+  -----------------------------------------------------------------------------------------
+  |  Module            |  Driver        |  SPI  |  Controller  |  URL                     |
+  -----------------------------------------------------------------------------------------
+  | Adafruit 2.2"      | adafruit22fb   | 9 bit |  HX8340bn    |  adafruit.com            |
+  | Sainsmart 1.8"     | sainsmart18fb  | 8 bit |  ST7735Rn    |  www.sainsmart.com       |
+  -----------------------------------------------------------------------------------------
+
+  adafruit22fb
+    GPIOS
+      reset (optional if handled by hardware)
+
+  sainsmart18fb
+    GPIOS
+      dc (required)
+      reset (optional if handled by hardware)
+
+
+KERNEL CONFIG
+  The drivers require a kernel with SPI, GPIO, FB, FB_SYS_* and FB_DEFERRED_IO turned on.
+
+  Check with these commands:
+    grep "CONFIG_SPI[= ]\|CONFIG_FB[= ]\|CONFIG_FB_DEFERRED_IO\|CONFIG_FB_SYS" .config
+    grep GPIO .config
+
+
+  Set options with 'make menuconfig'
+
+  CONFIG_SPI=y
+    Device Drivers ---> [*] SPI support  ---> <Some controller driver>
+
+  CONFIG_GENERIC_GPIO=y
+  CONFIG_BCM2708_GPIO=y
+    Device Drivers ---> -*- GPIO Support
+
+
+  CONFIG_FB=y
+    Device Drivers ---> Graphics support  ---> <*> Support for frame buffer devices
+
+
+  The following options can not be set from menuconfig (can only be set by other config options)
+  Use 'sed' to set them.
+
+  CONFIG_FB_DEFERRED_IO=y
+    sed -i '/CONFIG_FB_DEFERRED_IO/s/# \([A-Z0-9_]*\) is not set/\1=y/' .config
+
+  CONFIG_FB_SYS_FILLRECT=y
+  CONFIG_FB_SYS_COPYAREA=y
+  CONFIG_FB_SYS_IMAGEBLIT=y
+  CONFIG_FB_SYS_FOPS=y
+    sed -i '/CONFIG_FB_SYS/s/# \([A-Z0-9_]*\) is not set/\1=y/' .config
+
+
+TOOLS
+  spidevices
+    This module can add and delete SPI devices to simplify driver testing and development.
+	No need to change the arch/arm/mach-bcm2708/bcm2708.c (on rPi) platform file when testing.
+	Values are hardcoded.
+
+
+KNOWN BUGS
+  'fbtft' can't be used by more than one driver at a time.
+
+
+SOURCE CODE
+  https://github.com/notro/fbtft/