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    Subject[PATCH 2.6.18 V6] drivers: add lcd display support
    miguelojeda-2.6.18-add-lcd-display-support.patch


    Changelog (newer first)
    -----------------------

    V6 - Fixed mistakes found by Andrew Morton
    - added locking
    - removed "add const to class_create" part, as it is already accepted in 2.6.18-git10
    - removed PRINT_PREFIX macro, use KERN_... instead
    - reverted bitops to standard |= and &=
    - added const to fop's static struct
    - added error code checking for class_device_create()
    - removed "if(foo > maxfoo) foo=maxfoo;", use min(foo,maxfoo) instead
    - coding style:
    - used #defined constants directly, not static constants = DEFINED_CONSTANT
    - removed blank lines
    - changed pointers declarations to "T *name"
    - changed for's coding style
    - added single spaces around arithmetic operators
    - changed counter's nomencalture to i,j,k
    - shorter function definitions
    - removed newlines at some function calls
    - udelay(2)

    V5 - Fixed mistakes found by Joe Perches
    - coding style
    - const, spelling mistake

    V4 - Fixed mistakes found by Pavel Machek
    - no zero initialization
    - GPL version
    - use bitop generic functions

    V3 - Apply for 2.6.18
    - added const to class_create (2.6.18 hasn't add-const-to-class_create.patch)

    V2 - Fixed mistakes found by Greg KH
    - coding style

    V1 - Fixed mistakes found by Alexey Dobriyan
    - coding style
    - init() and exit() error management

    V0 - Original patch


    Brief
    -----

    - Adds const to class_create (2.6.18 hasn't add-const-to-class_create.patch)
    - Adds a "lcddisplay" class for registering LCD devices.
    - Adds support for the ks0108 LCD Controller as a device driver.
    (uses lcddisplay class and parport interface)
    - Adds support for the cfag12864b LCD Display as a device driver.
    (uses ks0108 device driver)
    - Adds a new ioctl() magic number/range (0xFF) in the list for the cfag12864b device.
    - Adds the usual Documentation, includes, Makefiles, Kconfigs, MAINTAINERS, CREDITS...


    Patched files Index
    -------------------

    patching file drivers/Kconfig
    patching file drivers/lcddisplay/cfag12864b.c
    patching file drivers/lcddisplay/cfag12864b_image.h
    patching file drivers/lcddisplay/Kconfig
    patching file drivers/lcddisplay/ks0108.c
    patching file drivers/lcddisplay/lcddisplay.c
    patching file drivers/lcddisplay/Makefile
    patching file drivers/Makefile
    patching file include/linux/cfag12864b.h
    patching file include/linux/ks0108.h
    patching file include/linux/lcddisplay.h
    patching file Documentation/lcddisplay/cfag12864b
    patching file Documentation/lcddisplay/lcddisplay
    patching file Documentation/ioctl-number.txt
    patching file CREDITS
    patching file MAINTAINERS



    Please review.

    miguelojeda-2.6.18-add-lcd-display-support.patch
    Signed-off-by: Miguel Ojeda Sandonis <maxextreme@gmail.com>
    ---
    diff -uprN -X dontdiff linux-2.6.18-vanilla/drivers/Kconfig linux-2.6.18/drivers/Kconfig
    --- linux-2.6.18-vanilla/drivers/Kconfig 2006-09-20 03:42:06.000000000 +0000
    +++ linux-2.6.18/drivers/Kconfig 2006-09-27 19:15:12.000000000 +0000
    @@ -74,4 +74,6 @@ source "drivers/rtc/Kconfig"

    source "drivers/dma/Kconfig"

    +source "drivers/lcddisplay/Kconfig"
    +
    endmenu
    diff -uprN -X dontdiff linux-2.6.18-vanilla/drivers/lcddisplay/cfag12864b.c linux-2.6.18/drivers/lcddisplay/cfag12864b.c
    --- linux-2.6.18-vanilla/drivers/lcddisplay/cfag12864b.c 1970-01-01 00:00:00.000000000 +0000
    +++ linux-2.6.18/drivers/lcddisplay/cfag12864b.c 2006-09-30 10:56:32.000000000 +0000
    @@ -0,0 +1,592 @@
    +/*
    + * Filename: cfag12864b.c
    + * Version: 0.1.0
    + * Description: cfag12864b LCD Display Driver
    + * License: GPLv2 or later
    + * Depends: lcddisplay ks0108
    + *
    + * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com>
    + * Date: 2006-09-28
    + *
    + * This program is free software; you can redistribute it and/or modify
    + * it under the terms of the GNU General Public License as published by
    + * the Free Software Foundation; either version 2 of the License, or
    + * (at your option) any later version.
    + *
    + * This program is distributed in the hope that it will be useful,
    + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    + * GNU General Public License for more details.
    + *
    + * You should have received a copy of the GNU General Public License
    + * along with this program; if not, write to the Free Software
    + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    + *
    + */
    +
    +#include <linux/init.h>
    +#include <linux/module.h>
    +#include <linux/kernel.h>
    +#include <linux/fs.h>
    +#include <linux/cdev.h>
    +#include <linux/device.h>
    +#include <linux/lcddisplay.h>
    +#include <linux/ks0108.h>
    +#include <linux/cfag12864b.h>
    +#include <asm/uaccess.h>
    +
    +#define CFAG12864B_NAME "cfag12864b"
    +
    +/*
    + * Device
    + */
    +
    +static const unsigned int cfag12864b_firstminor;
    +static const unsigned int cfag12864b_ndevices = 1;
    +static int cfag12864b_major;
    +static int cfag12864b_minor;
    +static dev_t cfag12864b_device;
    +struct cdev cfag12864b_chardevice;
    +DECLARE_MUTEX(cfag12864b_mutex);
    +
    +/*
    + * cfag12864b Commands
    + */
    +
    +#define bit(n) (((unsigned char)1)<<(n))
    +
    +static unsigned char cfag12864b_state;
    +
    +static void cfag12864b_set(void)
    +{
    + ks0108_writecontrol(cfag12864b_state);
    +}
    +
    +static void cfag12864b_setbit(unsigned char state, unsigned char n)
    +{
    + if (state)
    + cfag12864b_state |= bit(n);
    + else
    + cfag12864b_state &= ~bit(n);
    + cfag12864b_set();
    +}
    +
    +static void cfag12864b_e(unsigned char state)
    +{
    + cfag12864b_setbit(state, 0);
    +}
    +
    +static void cfag12864b_cs1(unsigned char state)
    +{
    + cfag12864b_setbit(state, 2);
    +}
    +
    +static void cfag12864b_cs2(unsigned char state)
    +{
    + cfag12864b_setbit(state, 1);
    +}
    +
    +static void cfag12864b_di(unsigned char state)
    +{
    + cfag12864b_setbit(state, 3);
    +}
    +
    +static void cfag12864b_setcontrollers(unsigned char first, unsigned char second)
    +{
    + if (first)
    + cfag12864b_cs1(0);
    + else
    + cfag12864b_cs1(1);
    +
    + if (second)
    + cfag12864b_cs2(0);
    + else
    + cfag12864b_cs2(1);
    +}
    +
    +static void cfag12864b_controller(unsigned char which)
    +{
    + if (which == 0)
    + cfag12864b_setcontrollers(1, 0);
    + else if (which == 1)
    + cfag12864b_setcontrollers(0, 1);
    +}
    +
    +static void cfag12864b_displaystate(unsigned char state)
    +{
    + cfag12864b_di(0);
    + cfag12864b_e(1);
    + ks0108_displaystate(state);
    + cfag12864b_e(0);
    +}
    +
    +static void cfag12864b_address(unsigned char address)
    +{
    + cfag12864b_di(0);
    + cfag12864b_e(1);
    + ks0108_address(address);
    + cfag12864b_e(0);
    +}
    +
    +static void cfag12864b_page(unsigned char page)
    +{
    + cfag12864b_di(0);
    + cfag12864b_e(1);
    + ks0108_page(page);
    + cfag12864b_e(0);
    +}
    +
    +static void cfag12864b_startline(unsigned char startline)
    +{
    + cfag12864b_di(0);
    + cfag12864b_e(1);
    + ks0108_startline(startline);
    + cfag12864b_e(0);
    +}
    +
    +static void cfag12864b_writebyte(unsigned char byte)
    +{
    + cfag12864b_di(1);
    + cfag12864b_e(1);
    + ks0108_writedata(byte);
    + cfag12864b_e(0);
    +}
    +
    +static void cfag12864b_nop(void)
    +{
    + cfag12864b_startline(0);
    +}
    +
    +/*
    + * Auxiliary
    + */
    +
    +static void normalizeoffset(unsigned int * offset)
    +{
    + if (*offset >= CFAG12864B_PAGES*CFAG12864B_ADDRESSES)
    + *offset -= CFAG12864B_PAGES*CFAG12864B_ADDRESSES;
    +}
    +
    +static unsigned char calcaddress(unsigned int offset)
    +{
    + normalizeoffset(&offset);
    + return offset%CFAG12864B_ADDRESSES;
    +}
    +
    +static unsigned char calccontroller(unsigned int offset)
    +{
    + if (offset < CFAG12864B_PAGES*CFAG12864B_ADDRESSES)
    + return 0;
    + return 1;
    +}
    +
    +static unsigned char calcpage(unsigned int offset)
    +{
    + normalizeoffset(&offset);
    + return offset/CFAG12864B_ADDRESSES;
    +}
    +
    +/*
    + * cfag12864b Internal Commands (don't lock)
    + */
    +
    +void cfag12864b_on_nolock(void)
    +{
    + cfag12864b_setcontrollers(1, 1);
    + cfag12864b_displaystate(1);
    +}
    +
    +void cfag12864b_off_nolock(void)
    +{
    + cfag12864b_setcontrollers(1, 1);
    + cfag12864b_displaystate(0);
    +}
    +
    +void cfag12864b_clear_nolock(void)
    +{
    + unsigned char i,j;
    +
    + cfag12864b_setcontrollers(1, 1);
    + for (i = 0; i < CFAG12864B_PAGES; i++) {
    + cfag12864b_page(i);
    + cfag12864b_address(0);
    + for (j = 0; j < CFAG12864B_ADDRESSES; j++)
    + cfag12864b_writebyte(0);
    + }
    +}
    +
    +void cfag12864b_write_nolock(unsigned short offset, const unsigned char *buffer,
    + unsigned short count)
    +{
    + unsigned short i;
    +
    + /* Invalid values: They get updated at the first cycle */
    + unsigned char controller = 0xFF;
    + unsigned char page = 0xFF;
    + unsigned char address = 0xFF;
    +
    + unsigned char tmpcontroller, tmppage, tmpaddress;
    +
    + if (offset > CFAG12864B_SIZE)
    + return;
    + if (count + offset > CFAG12864B_SIZE)
    + count = CFAG12864B_SIZE - offset;
    +
    + for (i = 0; i < count; i++, offset++, address++) {
    + tmpcontroller = calccontroller(offset);
    + tmppage = calcpage(offset);
    + tmpaddress = calcaddress(offset);
    +
    + if (controller != tmpcontroller) {
    + controller = tmpcontroller;
    + cfag12864b_controller(controller);
    + cfag12864b_nop();
    + }
    + if (page != tmppage) {
    + page = tmppage;
    + cfag12864b_page(page);
    + cfag12864b_nop();
    + }
    +
    + /* Safe method, still quick */
    + cfag12864b_address(tmpaddress);
    + cfag12864b_nop();
    +
    + /* Dummy */
    + cfag12864b_nop();
    +
    + cfag12864b_writebyte(buffer[i]);
    + }
    +}
    +
    +void cfag12864b_format_nolock(unsigned char *src)
    +{
    + unsigned short i,j,k,n;
    + unsigned char *dest;
    +
    + dest = kmalloc(sizeof(unsigned char) * CFAG12864B_SIZE, GFP_KERNEL);
    + if (dest == NULL) {
    + printk(KERN_ERR CFAG12864B_NAME ": " "format: ERROR: "
    + "can't alloc memory %i bytes\n",
    + sizeof(unsigned char) * CFAG12864B_SIZE);
    + return;
    + }
    +
    + for (i = 0; i < CFAG12864B_CONTROLLERS; i++)
    + for (j = 0; j < CFAG12864B_PAGES; j++)
    + for (k = 0; k < CFAG12864B_ADDRESSES; k++) {
    + dest[(i * CFAG12864B_PAGES + j) * CFAG12864B_ADDRESSES + k] = 0;
    + for (n=0; n < 8; n++)
    + if (src[i * CFAG12864B_ADDRESSES + k + (j * 8 + n) * CFAG12864B_WIDTH])
    + dest[(i * CFAG12864B_PAGES + j) * CFAG12864B_ADDRESSES + k] |= bit(n);
    + }
    +
    + cfag12864b_write_nolock(0, dest, CFAG12864B_SIZE);
    +
    + kfree(dest);
    +}
    +
    +/*
    + * cfag12864b Exported Commands (do lock)
    + */
    +
    +void cfag12864b_on(void)
    +{
    + if(down_interruptible(&cfag12864b_mutex))
    + return;
    +
    + cfag12864b_on_nolock();
    +
    + up(&cfag12864b_mutex);
    +}
    +
    +void cfag12864b_off(void)
    +{
    + if(down_interruptible(&cfag12864b_mutex))
    + return;
    +
    + cfag12864b_off_nolock();
    +
    + up(&cfag12864b_mutex);
    +}
    +
    +void cfag12864b_clear(void)
    +{
    + if(down_interruptible(&cfag12864b_mutex))
    + return;
    +
    + cfag12864b_clear_nolock();
    +
    + up(&cfag12864b_mutex);
    +}
    +
    +void cfag12864b_write(unsigned short offset, const unsigned char *buffer,
    + unsigned short count)
    +{
    + if(down_interruptible(&cfag12864b_mutex))
    + return;
    +
    + cfag12864b_write_nolock(offset,buffer,count);
    +
    + up(&cfag12864b_mutex);
    +}
    +
    +void cfag12864b_format(unsigned char *src)
    +{
    + if(down_interruptible(&cfag12864b_mutex))
    + return;
    +
    + cfag12864b_format_nolock(src);
    +
    + up(&cfag12864b_mutex);
    +}
    +
    +EXPORT_SYMBOL_GPL(cfag12864b_on);
    +EXPORT_SYMBOL_GPL(cfag12864b_off);
    +EXPORT_SYMBOL_GPL(cfag12864b_clear);
    +EXPORT_SYMBOL_GPL(cfag12864b_write);
    +EXPORT_SYMBOL_GPL(cfag12864b_format);
    +
    +/*
    + * cfag12864b ioctls (don't lock because ioctl fop do)
    + */
    +
    +static int cfag12864b_fopioctlformat(void __user * arg)
    +{
    + int result;
    + int ret = -ENOTTY;
    + unsigned char *tmpbuffer;
    +
    + tmpbuffer = kmalloc(
    + sizeof(unsigned char)*CFAG12864B_MATRIXSIZE,GFP_KERNEL);
    + if (tmpbuffer == NULL) {
    + printk(KERN_ERR CFAG12864B_NAME ": " "FOP ioctl: ERROR: "
    + "can't alloc memory %i bytes\n",
    + sizeof(unsigned char)*CFAG12864B_MATRIXSIZE);
    + goto none;
    + }
    +
    + result = copy_from_user(tmpbuffer, arg,
    + sizeof(unsigned char) * CFAG12864B_MATRIXSIZE);
    + if (result != 0) {
    + printk(KERN_ERR CFAG12864B_NAME ": " "FOP ioctl: ERROR: "
    + "can't copy memory from user\n");
    + goto bufferalloced;
    + }
    +
    + cfag12864b_format_nolock(tmpbuffer);
    +
    + ret = 0;
    +
    +bufferalloced:
    + kfree(tmpbuffer);
    +
    +none:
    + return ret;
    +}
    +
    +/*
    + * cfag12864b_fops (do lock)
    + */
    +
    +static loff_t cfag12864b_fopseek(struct file *filp, loff_t offset, int whence)
    +{
    + loff_t ret = -EINVAL;
    +
    + if(down_interruptible(&cfag12864b_mutex))
    + return -ERESTARTSYS;
    +
    + switch(whence) {
    + case SEEK_SET:
    + ret = offset;
    + break;
    + case SEEK_CUR:
    + ret = filp->f_pos + offset;
    + break;
    + case SEEK_END:
    + ret = CFAG12864B_SIZE + offset;
    + break;
    + }
    +
    + if (ret < 0) {
    + ret = -EINVAL;
    + goto none;
    + }
    +
    + filp->f_pos = ret;
    +
    +none:
    + up(&cfag12864b_mutex);
    + return ret;
    +}
    +
    +
    +static ssize_t cfag12864b_fopwrite(struct file *filp,
    + const char __user *buffer, size_t count, loff_t *offset)
    +{
    + int ret = -EINVAL;
    + int result;
    + unsigned char *tmpbuffer;
    +
    + if(down_interruptible(&cfag12864b_mutex))
    + return -ERESTARTSYS;
    +
    + if (*offset > CFAG12864B_SIZE) {
    + ret = 0;
    + goto none;
    + }
    + if (*offset + count > CFAG12864B_SIZE)
    + count = CFAG12864B_SIZE-*offset;
    +
    + tmpbuffer = kmalloc(count, GFP_KERNEL);
    + if (tmpbuffer == NULL) {
    + printk(KERN_ERR CFAG12864B_NAME ": " "FOP write: ERROR: "
    + "can't alloc memory %i bytes\n",count);
    + ret = -ENOMEM;
    + goto none;
    + }
    +
    + result = copy_from_user(tmpbuffer, buffer, count);
    + if (result != 0) {
    + printk(KERN_ERR CFAG12864B_NAME ": " "FOP write: ERROR: "
    + "can't copy memory from user\n");
    + ret = -EFAULT;
    + goto bufferalloced;
    + }
    +
    + cfag12864b_write_nolock(*offset, tmpbuffer, count);
    +
    + *offset += count;
    + ret = count;
    +
    +bufferalloced:
    + kfree(tmpbuffer);
    +
    +none:
    + up(&cfag12864b_mutex);
    + return ret;
    +}
    +
    +static int cfag12864b_fopioctl(struct inode * inode, struct file * filp,
    + unsigned int cmd, unsigned long arg)
    +{
    + int ret = -ENOTTY;
    +
    + if(down_interruptible(&cfag12864b_mutex))
    + return -ERESTARTSYS;
    +
    + if (_IOC_TYPE(cmd) != CFAG12864B_IOC_MAGIC)
    + goto none;
    + if (_IOC_NR(cmd) > CFAG12864B_IOC_MAXNR)
    + goto none;
    +
    + switch(cmd) {
    + case CFAG12864B_IOCON:
    + cfag12864b_on_nolock();
    + ret = 0;
    + break;
    + case CFAG12864B_IOCOFF:
    + cfag12864b_off_nolock();
    + ret = 0;
    + break;
    + case CFAG12864B_IOCCLEAR:
    + cfag12864b_clear_nolock();
    + ret = 0;
    + break;
    + case CFAG12864B_IOCFORMAT:
    + ret = cfag12864b_fopioctlformat((void __user *)arg);
    + }
    +
    +none:
    + up(&cfag12864b_mutex);
    + return ret;
    +}
    +
    +static const struct file_operations cfag12864b_fops =
    +{
    + .owner = THIS_MODULE,
    + .llseek = cfag12864b_fopseek,
    + .write = cfag12864b_fopwrite,
    + .ioctl = cfag12864b_fopioctl,
    +};
    +
    +/*
    + * Module Init & Exit
    + */
    +
    +static int __init cfag12864b_init(void)
    +{
    +
    +#include "cfag12864b_image.h"
    +
    + int result;
    + int ret = -EINVAL;
    +
    + result = alloc_chrdev_region(&cfag12864b_device, cfag12864b_firstminor,
    + cfag12864b_ndevices, CFAG12864B_NAME);
    + if (result < 0) {
    + printk(KERN_ERR CFAG12864B_NAME ": " "ERROR: "
    + "can't alloc the char device region\n");
    + ret = result;
    + goto none;
    + }
    +
    + cfag12864b_major = MAJOR(cfag12864b_device);
    + cfag12864b_minor = cfag12864b_firstminor;
    + cfag12864b_device = MKDEV(cfag12864b_major, cfag12864b_minor);
    +
    + cfag12864b_clear_nolock();
    + cfag12864b_on_nolock();
    + cfag12864b_write_nolock(0, cfag12864b_image, CFAG12864B_SIZE);
    +
    + cdev_init(&cfag12864b_chardevice,&cfag12864b_fops);
    + cfag12864b_chardevice.owner = THIS_MODULE;
    + cfag12864b_chardevice.ops = &cfag12864b_fops;
    + result = cdev_add(&cfag12864b_chardevice, cfag12864b_device,
    + cfag12864b_ndevices);
    + if (result < 0) {
    + printk(KERN_ERR CFAG12864B_NAME ": " "ERROR: "
    + "unable to add a new char device\n");
    + ret = result;
    + goto regionalloced;
    + }
    +
    + if(class_device_create(lcddisplay_class, NULL, cfag12864b_device, NULL,
    + "cfag12864b%d", cfag12864b_minor) == NULL) {
    + printk(KERN_ERR CFAG12864B_NAME ": " "ERROR: "
    + "unable to create a device class\n");
    + ret = -EINVAL;
    + goto cdevadded;
    + }
    +
    + printk(KERN_INFO CFAG12864B_NAME ": " "Inited\n");
    +
    + return 0;
    +
    +cdevadded:
    + cdev_del(&cfag12864b_chardevice);
    +
    +regionalloced:
    + unregister_chrdev_region(cfag12864b_device, cfag12864b_ndevices);
    +
    +none:
    + return ret;
    +}
    +
    +static void __exit cfag12864b_exit(void)
    +{
    + cfag12864b_off_nolock();
    +
    + class_device_destroy(lcddisplay_class, cfag12864b_device);
    + cdev_del(&cfag12864b_chardevice);
    + unregister_chrdev_region(cfag12864b_device, cfag12864b_ndevices);
    +
    + printk(KERN_INFO CFAG12864B_NAME ": " "Exited\n");
    +}
    +
    +module_init(cfag12864b_init);
    +module_exit(cfag12864b_exit);
    +
    +MODULE_LICENSE("GPL");
    +MODULE_AUTHOR("Miguel Ojeda Sandonis <maxextreme@gmail.com>");
    +MODULE_DESCRIPTION("cfag12864b");
    diff -uprN -X dontdiff linux-2.6.18-vanilla/drivers/lcddisplay/cfag12864b_image.h linux-2.6.18/drivers/lcddisplay/cfag12864b_image.h
    --- linux-2.6.18-vanilla/drivers/lcddisplay/cfag12864b_image.h 1970-01-01 00:00:00.000000000 +0000
    +++ linux-2.6.18/drivers/lcddisplay/cfag12864b_image.h 2006-09-28 19:59:11.000000000 +0000
    @@ -0,0 +1,95 @@
    +/*
    + * Filename: cfag12864b_image.h
    + * Version: 0.1.0
    + * Description: cfag12864b LCD Display Driver Startup Image
    + * License: GPLv2 or later
    + *
    + * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com>
    + * Date: 2006-09-28
    + *
    + * This program is free software; you can redistribute it and/or modify
    + * it under the terms of the GNU General Public License as published by
    + * the Free Software Foundation; either version 2 of the License, or
    + * (at your option) any later version.
    + *
    + * This program is distributed in the hope that it will be useful,
    + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    + * GNU General Public License for more details.
    + *
    + * You should have received a copy of the GNU General Public License
    + * along with this program; if not, write to the Free Software
    + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    + *
    + */
    +
    +#ifndef _CFAG12864B_IMAGE_H_
    +#define _CFAG12864B_IMAGE_H_
    +
    +const unsigned char cfag12864b_image[] = {
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0x00,0xE0,0xF8,0xFC,0xFE,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xCE,
    +0xEE,0xFC,0xFC,0xF8,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0x00,0xFF,0x87,0xFB,0x69,0x23,0x3F,0x3F,0x3F,0x07,0x21,0x79,0xF9,0xF1,
    +0x83,0xFF,0xFF,0xFF,0xFF,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x06,0x18,0x30,
    +0x18,0x06,0xFF,0x00,0x00,0xFD,0x00,0x00,0x78,0xCC,0x84,0xCC,0xFC,0x00,0x00,0x7C,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0xC0,0xFF,0x3D,0x38,0xF0,0xD0,0xD0,0xD0,0xD0,0x48,0x68,0x24,0x14,0x14,
    +0x00,0x3F,0xFF,0xF7,0xEF,0xEF,0xFC,0xF0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x02,0x02,0x01,0x00,0x00,0x00,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xE0,0x30,0xF8,
    +0xFE,0x7F,0x03,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0x00,0x03,0x1F,0x7F,0xFF,0xFF,0xDF,0x3F,0xFE,0xF8,0xF0,0xE0,0x80,0x00,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1E,0x33,0x21,0x21,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0xF0,0xFC,0xFF,0xFF,0xFF,0x07,
    +0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x1F,0xFF,0xFF,0xFC,0x03,0xFF,0xFF,0xFF,0xFE,
    +0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0x00,0x00,0x00,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x7E,0x0F,0x0F,0x0F,0x1B,0x37,0xE7,0xC0,
    +0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0x00,0x00,0x00,0xE0,0x00,0x10,0xFB,0xFF,0xFD,0xFF,0xFB,0xFF,0x7F,0x3F,
    +0x5F,0x86,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x08,0x08,0x08,
    +0x00,0x1E,0xF2,0x02,0x02,0x02,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
    +0x07,0x0F,0x3F,0x7E,0xFC,0x38,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x80,0xC0,0xE0,0x00,0xFF,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x00,0x00,0x00,
    +0x00,0x03,0x0C,0x18,0x10,0x10,0xE0,0x00,0x00,0x00,0x00,0x00,0xFC,0x00,0x00,0x00,
    +0x00,0x07,0x09,0x08,0x08,0x08,0x10,0x10,0x10,0x10,0x20,0x20,0x20,0x60,0x40,0xC0,
    +0xC0,0xC0,0xC0,0x60,0x3F,0x1E,0x11,0x1F,0x1E,0x1E,0x1E,0x1E,0x1E,0x1E,0x1F,0x1F,
    +0x1F,0x1F,0x1F,0x11,0x3E,0x7F,0xE0,0xE0,0xC0,0xC0,0xC0,0x60,0x30,0x10,0x08,0x0C,
    +0x04,0x06,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x02,0x02,0x02,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x80,0x80,0x00,0xFC,0x00,0x00,0x78,0xD4,0x94,0x94,0x58,0x00,0x00,0xFF,0x00,0x00,
    +0x00,0x00,0x00,0x3C,0x42,0x81,0x81,0x81,0x42,0x3C,0x00,0x00,0xFD,0x00,0x00,0x78,
    +0xD4,0x94,0x94,0x58,0x00,0x00,0x78,0xCC,0x84,0xCC,0xFF,0x00,0x00,0x60,0x94,0x94,
    +0x54,0xF8,0x00,0x00,0x07,0x00,0x00,0x58,0x94,0x94,0xA4,0x68,0x00,0x00,0x00,0x00,
    +0x00,0x00,0xC0,0x20,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x00,0x00,0x00,0x40,0x40,0xC0,0x00,0x00,0x00,0x00,0x82,0x41,0x40,0x40,0x80,
    +0x00,0x00,0x80,0x40,0x40,0x40,0x80,0x00,0x00,0x00,0x80,0x40,0x40,0x40,0x00,0x00,
    +0x00,0x00,0x80,0xC0,0x00,0x00,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    +0x00,0x01,0x3F,0x01,0x01,0x00,0x18,0x25,0x25,0x15,0x3E,0x00,0x00,0x1E,0xB3,0xA1,
    +0xB3,0x7F,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,0x20,0x30,0x28,0x24,0x23,
    +0x00,0x00,0x1D,0x22,0x22,0x22,0x1D,0x00,0x00,0x1F,0x22,0x22,0x22,0x1C,0x00,0x0C,
    +0x0A,0x09,0x08,0x3F,0x08,0x00,0x00,0x3F,0x33,0x21,0x33,0x1E,0x00,0x00,0x00,0x00,
    +0x00,0x00,0xC0,0x20,0x10,0x10,0x10,0x20,0x00,0x00,0xF0,0x10,0x10,0x10,0x20,0xC0,
    +0x00,0x00,0x00,0x00,0x00,0xF0,0x10,0x10,0x10,0x20,0xC0,0x00,0x00,0xD0,0x00,0x00,
    +0x80,0x40,0x40,0x40,0x80,0x00,0x00,0xC0,0xC0,0x40,0xC0,0x80,0x00,0x00,0xF8,0x00,
    +0x00,0x00,0x40,0x40,0x40,0x80,0x00,0xC0,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,
    +0x08,0x00,0x03,0x04,0x08,0x08,0x08,0x04,0x00,0x00,0x0F,0x08,0x08,0x08,0x04,0x03,
    +0x00,0x00,0x00,0x00,0x00,0x0F,0x08,0x08,0x08,0x04,0x03,0x00,0x00,0x0F,0x00,0x00,
    +0x05,0x09,0x09,0x0A,0x06,0x00,0x00,0x3F,0x0C,0x08,0x0C,0x07,0x00,0x00,0x0F,0x00,
    +0x00,0x06,0x09,0x09,0x05,0x0F,0x00,0x20,0x23,0x1C,0x0C,0x03,0x00,0x00,0x00,0x00,
    +0x00,0x00,0xF4,0x00,0x00,0xF0,0x00,0x10,0x10,0xE0,0x00,0x00,0xF0,0x00,0x00,0x00,
    +0xF0,0x00,0x10,0x20,0xC0,0xC0,0x20,0x10,0x00,0x00,0x00,0x00,0xFC,0x04,0x04,0x04,
    +0x08,0xF0,0x00,0x00,0xF0,0x20,0x10,0x10,0x00,0xF4,0x00,0x30,0xC0,0x00,0x00,0xC0,
    +0x30,0x00,0xE0,0x50,0x50,0x50,0x60,0x00,0x00,0xF0,0x20,0x10,0x10,0x00,0x00,0x00,
    +0x02,0x00,0x03,0x00,0x00,0x03,0x00,0x00,0x00,0x03,0x00,0x00,0x01,0x02,0x02,0x00,
    +0x03,0x00,0x02,0x01,0x00,0x00,0x01,0x02,0x00,0x00,0x00,0x00,0x03,0x02,0x02,0x02,
    +0x01,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x03,0x03,0x00,
    +0x00,0x00,0x01,0x03,0x02,0x02,0x01,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00};
    +
    +#endif /* _CFAG12864B_IMAGE_H_ */
    diff -uprN -X dontdiff linux-2.6.18-vanilla/drivers/lcddisplay/Kconfig linux-2.6.18/drivers/lcddisplay/Kconfig
    --- linux-2.6.18-vanilla/drivers/lcddisplay/Kconfig 1970-01-01 00:00:00.000000000 +0000
    +++ linux-2.6.18/drivers/lcddisplay/Kconfig 2006-09-30 02:52:24.000000000 +0000
    @@ -0,0 +1,110 @@
    +#
    +# For a description of the syntax of this configuration file,
    +# see Documentation/kbuild/kconfig-language.txt.
    +#
    +# LCD Display drivers configuration.
    +#
    +# Maintainer: Miguel Ojeda Sandonis <maxextreme@gmail.com>
    +#
    +
    +menu "LCD Display support"
    +
    +config LCDDISPLAY
    + tristate "LCD Display support"
    + default n
    + ---help---
    + If you have a LCD display, say Y.
    +
    + To compile this as a module, choose M here:
    + module will be called lcddisplay.
    +
    + Most LCD drivers use a I/O port (like the parallel port)
    + so you will need to say Y or M at them if you want to see
    + more options in this menu.
    +
    + If unsure, say N.
    +
    + Maintainer: Miguel Ojeda Sandonis <maxextreme@gmail.com>
    +
    +comment "Parallel port dependent:"
    +
    +config KS0108
    + tristate "KS0108 LCD Controller"
    + depends on LCDDISPLAY && PARPORT
    + default n
    + ---help---
    + If you have a LCD display controlled by one or more KS0108
    + controllers, say Y. You will need also another more specific
    + driver for your LCD.
    +
    + Depends on Parallel Port support. If you say Y at
    + parport, you will be able to compile this as a module (M)
    + and built-in as well (Y). If you said M at parport,
    + you will be able only to compile this as a module (M).
    +
    + To compile this as a module, choose M here:
    + module will be called ks0108.
    +
    + If unsure, say N.
    +
    + Maintainer: Miguel Ojeda Sandonis <maxextreme@gmail.com>
    +
    +config KS0108_PORT
    + hex "Parallel port where the LCD is connected to"
    + depends on KS0108
    + default 0x378
    + ---help---
    + The address of the parallel port where the LCD is connected to.
    +
    + The first standard parallel port address is 0x378.
    + The second standard parallel port address is 0x278.
    + The third standard parallel port address is 0x3BC.
    +
    + You can specify a different address if you need.
    +
    + If you don't know what I'm talking about, load the parport module,
    + and execute "dmesg". You can see there how many parallel ports
    + where detected and which address everyone has.
    +
    + Usually you only need to use 0x378.
    +
    + If you compile this as a module, you can still override this
    + using the module parameters.
    +
    +config KS0108_DELAY
    + int "Delay between each control writing (microseconds)"
    + depends on KS0108
    + default "2"
    + ---help---
    + Amount of time the ks0108 should wait between each control write
    + to the parallel port.
    +
    + If your driver seems to miss random writings, increment this.
    +
    + If you don't know what I'm talking about, ignore it.
    +
    + If you compile this as a module, you can still override this
    + using the module parameters.
    +
    +config CFAG12864B
    + tristate "CFAG12864B LCD Display"
    + depends on KS0108
    + default n
    + ---help---
    + If you have a Crystalfontz 128x64 2-color LCD display,
    + cfag12864b Series, say Y. You also need the ks0108 LCD
    + Controller driver.
    +
    + For help about how to wire your LCD to the parallel port,
    + check this image: http://www.skippari.net/lcd/sekalaista
    + /crystalfontz_cfag12864B-TMI-V.png
    +
    + To compile this as a module, choose M here:
    + module will be called cfag12864b.
    +
    + If unsure, say N.
    +
    + Maintainer: Miguel Ojeda Sandonis <maxextreme@gmail.com>
    +
    +endmenu
    +
    diff -uprN -X dontdiff linux-2.6.18-vanilla/drivers/lcddisplay/ks0108.c linux-2.6.18/drivers/lcddisplay/ks0108.c
    --- linux-2.6.18-vanilla/drivers/lcddisplay/ks0108.c 1970-01-01 00:00:00.000000000 +0000
    +++ linux-2.6.18/drivers/lcddisplay/ks0108.c 2006-09-30 12:41:31.000000000 +0000
    @@ -0,0 +1,160 @@
    +/*
    + * Filename: ks0108.c
    + * Version: 0.1.0
    + * Description: ks0108 LCD Display Controller Driver
    + * License: GPLv2 or later
    + * Depends: parport
    + *
    + * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com>
    + * Date: 2006-09-28
    + *
    + * This program is free software; you can redistribute it and/or modify
    + * it under the terms of the GNU General Public License as published by
    + * the Free Software Foundation; either version 2 of the License, or
    + * (at your option) any later version.
    + *
    + * This program is distributed in the hope that it will be useful,
    + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    + * GNU General Public License for more details.
    + *
    + * You should have received a copy of the GNU General Public License
    + * along with this program; if not, write to the Free Software
    + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    + *
    + */
    +
    +#include <linux/init.h>
    +#include <linux/module.h>
    +#include <linux/kernel.h>
    +#include <linux/fs.h>
    +#include <linux/delay.h>
    +#include <linux/parport.h>
    +#include <linux/ks0108.h>
    +#include <asm/io.h>
    +#include <asm/uaccess.h>
    +
    +#define KS0108_NAME "ks0108"
    +
    +/*
    + * Module Parameters
    + */
    +
    +static unsigned int ks0108_port = CONFIG_KS0108_PORT;
    +module_param(ks0108_port, uint, S_IRUGO);
    +
    +static unsigned int ks0108_delay = CONFIG_KS0108_DELAY;
    +module_param(ks0108_delay, uint, S_IRUGO);
    +
    +/*
    + * Device
    + */
    +
    +static struct parport *ks0108_parport;
    +static struct pardevice *ks0108_pardevice;
    +
    +/*
    + * ks0108 Exported cmds (don't lock)
    + *
    + * you _should_ lock in the top driver, so
    + * this functions _should not_ get race conditions in any way.
    + * Locking for each byte here would be so slow and useless.
    + */
    +
    +#define bit(n) (((unsigned char)1)<<(n))
    +
    +void ks0108_writedata(unsigned char byte)
    +{
    + parport_write_data(ks0108_parport, byte);
    +}
    +
    +void ks0108_writecontrol(unsigned char byte)
    +{
    + udelay(ks0108_delay);
    + parport_write_control(ks0108_parport, byte ^ (bit(0) | bit(1) | bit(3)));
    +}
    +
    +void ks0108_displaystate(unsigned char state)
    +{
    + ks0108_writedata((state ? bit(0) : 0) | bit(1) | bit(2) | bit(3) | bit(4) | bit(5));
    +}
    +
    +void ks0108_startline(unsigned char startline)
    +{
    + ks0108_writedata(min(startline,(unsigned char)63) | bit(6) | bit(7));
    +}
    +
    +void ks0108_address(unsigned char address)
    +{
    + ks0108_writedata(min(address,(unsigned char)63) | bit(6));
    +}
    +
    +void ks0108_page(unsigned char page)
    +{
    + ks0108_writedata(min(page,(unsigned char)7) | bit(3) | bit(4) | bit(5) | bit(7));
    +}
    +
    +EXPORT_SYMBOL_GPL(ks0108_writedata);
    +EXPORT_SYMBOL_GPL(ks0108_writecontrol);
    +EXPORT_SYMBOL_GPL(ks0108_displaystate);
    +EXPORT_SYMBOL_GPL(ks0108_startline);
    +EXPORT_SYMBOL_GPL(ks0108_address);
    +EXPORT_SYMBOL_GPL(ks0108_page);
    +
    +/*
    + * Module Init & Exit
    + */
    +
    +static int __init ks0108_init(void)
    +{
    + int result;
    + int ret = -EINVAL;
    +
    + ks0108_parport = parport_find_base(ks0108_port);
    + if (ks0108_parport == NULL) {
    + printk(KERN_ERR KS0108_NAME ": " "ERROR: "
    + "parport didn't find %i port\n",ks0108_port);
    + goto none;
    + }
    +
    + ks0108_pardevice = parport_register_device(ks0108_parport, KS0108_NAME,
    + NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
    + if (ks0108_pardevice == NULL) {
    + printk(KERN_ERR KS0108_NAME ": " "ERROR: "
    + "parport didn't register new device\n");
    + goto none;
    + }
    +
    + result = parport_claim(ks0108_pardevice);
    + if (result != 0) {
    + printk(KERN_ERR KS0108_NAME ": " "ERROR: "
    + "can't claim %i parport, maybe in use\n",ks0108_port);
    + ret = result;
    + goto registered;
    + }
    +
    + printk(KERN_INFO KS0108_NAME ": " "Inited - ks0108_port=0x%X ks0108_delay=%i\n", ks0108_port, ks0108_delay);
    + return 0;
    +
    +registered:
    + parport_unregister_device(ks0108_pardevice);
    +
    +none:
    + return ret;
    +}
    +
    +static void __exit ks0108_exit(void)
    +{
    + parport_release(ks0108_pardevice);
    + parport_unregister_device(ks0108_pardevice);
    +
    + printk(KERN_INFO KS0108_NAME ": " "Exited\n");
    +}
    +
    +module_init(ks0108_init);
    +module_exit(ks0108_exit);
    +
    +MODULE_LICENSE("GPL");
    +MODULE_AUTHOR("Miguel Ojeda Sandonis <maxextreme@gmail.com>");
    +MODULE_DESCRIPTION("ks0108");
    +
    diff -uprN -X dontdiff linux-2.6.18-vanilla/drivers/lcddisplay/lcddisplay.c linux-2.6.18/drivers/lcddisplay/lcddisplay.c
    --- linux-2.6.18-vanilla/drivers/lcddisplay/lcddisplay.c 1970-01-01 00:00:00.000000000 +0000
    +++ linux-2.6.18/drivers/lcddisplay/lcddisplay.c 2006-09-28 19:59:18.000000000 +0000
    @@ -0,0 +1,79 @@
    +/*
    + * Filename: lcddisplay.c
    + * Version: 0.1.0
    + * Description: LCD Display Class
    + * License: GPLv2 or later
    + * Depends: -
    + *
    + * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com>
    + * Date: 2006-09-28
    + *
    + * This program is free software; you can redistribute it and/or modify
    + * it under the terms of the GNU General Public License as published by
    + * the Free Software Foundation; either version 2 of the License, or
    + * (at your option) any later version.
    + *
    + * This program is distributed in the hope that it will be useful,
    + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    + * GNU General Public License for more details.
    + *
    + * You should have received a copy of the GNU General Public License
    + * along with this program; if not, write to the Free Software
    + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    + *
    + */
    +
    +#include <linux/init.h>
    +#include <linux/module.h>
    +#include <linux/kernel.h>
    +#include <linux/fs.h>
    +#include <linux/device.h>
    +#include <linux/lcddisplay.h>
    +
    +#define LCDDISPLAY_NAME "lcddisplay"
    +
    +/*
    + * Exported Display Data
    + */
    +
    +struct class *lcddisplay_class;
    +EXPORT_SYMBOL_GPL(lcddisplay_class);
    +
    +/*
    + * Module Init & Exit
    + */
    +
    +static int __init lcddisplay_init(void)
    +{
    + int ret = -EINVAL;
    +
    + lcddisplay_class = class_create(THIS_MODULE, LCDDISPLAY_NAME);
    + if (IS_ERR(lcddisplay_class)) {
    + printk(KERN_ERR LCDDISPLAY_NAME ": " "ERROR: "
    + "can't create %s class\n", LCDDISPLAY_NAME);
    + goto none;
    + }
    +
    + printk(KERN_INFO LCDDISPLAY_NAME ": " "Inited\n");
    +
    + return 0;
    +
    +none:
    + return ret;
    +}
    +
    +static void __exit lcddisplay_exit(void)
    +{
    + class_destroy(lcddisplay_class);
    +
    + printk(KERN_INFO LCDDISPLAY_NAME ": " "Exited\n");
    +}
    +
    +module_init(lcddisplay_init);
    +module_exit(lcddisplay_exit);
    +
    +MODULE_LICENSE("GPL");
    +MODULE_AUTHOR("Miguel Ojeda Sandonis <maxextreme@gmail.com>");
    +MODULE_DESCRIPTION("lcddisplay");
    +
    diff -uprN -X dontdiff linux-2.6.18-vanilla/drivers/lcddisplay/Makefile linux-2.6.18/drivers/lcddisplay/Makefile
    --- linux-2.6.18-vanilla/drivers/lcddisplay/Makefile 1970-01-01 00:00:00.000000000 +0000
    +++ linux-2.6.18/drivers/lcddisplay/Makefile 2006-09-27 19:15:13.000000000 +0000
    @@ -0,0 +1,7 @@
    +#
    +# Makefile for the kernel LCD Display device drivers.
    +#
    +
    +obj-$(CONFIG_LCDDISPLAY) += lcddisplay.o
    +obj-$(CONFIG_KS0108) += ks0108.o
    +obj-$(CONFIG_CFAG12864B) += cfag12864b.o
    diff -uprN -X dontdiff linux-2.6.18-vanilla/drivers/Makefile linux-2.6.18/drivers/Makefile
    --- linux-2.6.18-vanilla/drivers/Makefile 2006-09-20 03:42:06.000000000 +0000
    +++ linux-2.6.18/drivers/Makefile 2006-09-27 19:15:13.000000000 +0000
    @@ -76,3 +76,4 @@ obj-$(CONFIG_CRYPTO) += crypto/
    obj-$(CONFIG_SUPERH) += sh/
    obj-$(CONFIG_GENERIC_TIME) += clocksource/
    obj-$(CONFIG_DMA_ENGINE) += dma/
    +obj-$(CONFIG_LCDDISPLAY) += lcddisplay/
    diff -uprN -X dontdiff linux-2.6.18-vanilla/include/linux/cfag12864b.h linux-2.6.18/include/linux/cfag12864b.h
    --- linux-2.6.18-vanilla/include/linux/cfag12864b.h 1970-01-01 00:00:00.000000000 +0000
    +++ linux-2.6.18/include/linux/cfag12864b.h 2006-09-28 19:59:57.000000000 +0000
    @@ -0,0 +1,58 @@
    +/*
    + * Filename: cfag12864b.h
    + * Version: 0.1.0
    + * Description: cfag12864b LCD Display Driver Header
    + * License: GPLv2 or later
    + *
    + * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com>
    + * Date: 2006-09-28
    + *
    + * This program is free software; you can redistribute it and/or modify
    + * it under the terms of the GNU General Public License as published by
    + * the Free Software Foundation; either version 2 of the License, or
    + * (at your option) any later version.
    + *
    + * This program is distributed in the hope that it will be useful,
    + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    + * GNU General Public License for more details.
    + *
    + * You should have received a copy of the GNU General Public License
    + * along with this program; if not, write to the Free Software
    + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    + *
    + */
    +
    +#ifndef _CFAG12864B_H_
    +#define _CFAG12864B_H_
    +
    +#include <linux/ioctl.h>
    +
    +#define CFAG12864B_WIDTH 128
    +#define CFAG12864B_HEIGHT 64
    +#define CFAG12864B_MATRIXSIZE CFAG12864B_WIDTH*CFAG12864B_HEIGHT
    +
    +#define CFAG12864B_CONTROLLERS 2
    +#define CFAG12864B_PAGES 8
    +#define CFAG12864B_ADDRESSES 64
    +#define CFAG12864B_SIZE CFAG12864B_CONTROLLERS * \
    + CFAG12864B_PAGES * \
    + CFAG12864B_ADDRESSES
    +
    +#define CFAG12864B_IOC_MAGIC 0xFF
    +#define CFAG12864B_IOC_MAXNR 0x03
    +
    +#define CFAG12864B_IOCOFF _IO(CFAG12864B_IOC_MAGIC,0)
    +#define CFAG12864B_IOCON _IO(CFAG12864B_IOC_MAGIC,1)
    +#define CFAG12864B_IOCCLEAR _IO(CFAG12864B_IOC_MAGIC,2)
    +#define CFAG12864B_IOCFORMAT _IOW(CFAG12864B_IOC_MAGIC,3,void *)
    +
    +extern void cfag12864b_on(void);
    +extern void cfag12864b_off(void);
    +extern void cfag12864b_clear(void);
    +extern void cfag12864b_write(unsigned short offset,
    + const unsigned char *buffer, unsigned short count);
    +extern void cfag12864b_format(unsigned char *src);
    +
    +#endif /* _CFAG12864B_H_ */
    +
    diff -uprN -X dontdiff linux-2.6.18-vanilla/include/linux/ks0108.h linux-2.6.18/include/linux/ks0108.h
    --- linux-2.6.18-vanilla/include/linux/ks0108.h 1970-01-01 00:00:00.000000000 +0000
    +++ linux-2.6.18/include/linux/ks0108.h 2006-09-28 19:59:51.000000000 +0000
    @@ -0,0 +1,36 @@
    +/*
    + * Filename: ks0108.h
    + * Version: 0.1.0
    + * Description: ks0108 LCD Display Controller Driver Header
    + * License: GPLv2 or later
    + *
    + * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com>
    + * Date: 2006-09-28
    + *
    + * This program is free software; you can redistribute it and/or modify
    + * it under the terms of the GNU General Public License as published by
    + * the Free Software Foundation; either version 2 of the License, or
    + * (at your option) any later version.
    + *
    + * This program is distributed in the hope that it will be useful,
    + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    + * GNU General Public License for more details.
    + *
    + * You should have received a copy of the GNU General Public License
    + * along with this program; if not, write to the Free Software
    + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    + *
    + */
    +
    +#ifndef _KS0108_H_
    +#define _KS0108_H_
    +
    +extern void ks0108_writedata(unsigned char byte);
    +extern void ks0108_writecontrol(unsigned char byte);
    +extern void ks0108_displaystate(unsigned char state);
    +extern void ks0108_startline(unsigned char startline);
    +extern void ks0108_address(unsigned char address);
    +extern void ks0108_page(unsigned char page);
    +
    +#endif /* _KS0108_H_ */
    diff -uprN -X dontdiff linux-2.6.18-vanilla/include/linux/lcddisplay.h linux-2.6.18/include/linux/lcddisplay.h
    --- linux-2.6.18-vanilla/include/linux/lcddisplay.h 1970-01-01 00:00:00.000000000 +0000
    +++ linux-2.6.18/include/linux/lcddisplay.h 2006-09-28 19:59:44.000000000 +0000
    @@ -0,0 +1,34 @@
    +/*
    + * Filename: lcddisplay.h
    + * Version: 0.1.0
    + * Description: Display Class Header
    + * License: GPLv2 or later
    + *
    + * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com>
    + * Date: 2006-09-28
    + *
    + * This program is free software; you can redistribute it and/or modify
    + * it under the terms of the GNU General Public License as published by
    + * the Free Software Foundation; either version 2 of the License, or
    + * (at your option) any later version.
    + *
    + * This program is distributed in the hope that it will be useful,
    + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    + * GNU General Public License for more details.
    + *
    + * You should have received a copy of the GNU General Public License
    + * along with this program; if not, write to the Free Software
    + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    + *
    + */
    +
    +#ifndef _LCDDISPLAY_H_
    +#define _LCDDISPLAY_H_
    +
    +#include <linux/device.h>
    +
    +extern struct class *lcddisplay_class;
    +
    +#endif /* _LCDDISPLAY_H_ */
    +
    diff -uprN -X dontdiff linux-2.6.18-vanilla/Documentation/lcddisplay/cfag12864b linux-2.6.18/Documentation/lcddisplay/cfag12864b
    --- linux-2.6.18-vanilla/Documentation/lcddisplay/cfag12864b 1970-01-01 00:00:00.000000000 +0000
    +++ linux-2.6.18/Documentation/lcddisplay/cfag12864b 2006-09-30 12:20:28.000000000 +0000
    @@ -0,0 +1,371 @@
    + ===============================
    + cfag12864b Driver Documentation
    + ===============================
    +
    +License: GPL
    +Author & Maintainer: Miguel Ojeda Sandonis <maxextreme@gmail.com>
    +Date: 2006-09-30
    +
    +
    +
    +--------
    +0. INDEX
    +--------
    +
    + 1. DEVICE INFORMATION
    + 2. WIRING
    + 3. USER-SPACE PROGRAMMING
    + 3.1. ioctl and a 128*64 boolean matrix
    + 3.2. Direct writing
    + 4. USEFUL FILES
    + 4.1. cfag12864b.h
    + 4.2. bmpwriter.h
    +
    +
    +
    +---------------------
    +1. DEVICE INFORMATION
    +---------------------
    +
    +Manufacturer: Crystalfontz
    +Webpage: http://www.crystalfontz.com
    +Device Webpage: http://www.crystalfontz.com/products/12864b/
    +Type: LCD Display
    +Width: 128
    +Height: 64
    +Colors: 2
    +Controller: ks0108
    +Controllers: 2
    +Pages: 8 each controller
    +Addresses: 64 each page
    +
    +
    +
    +---------
    +2. WIRING
    +---------
    +
    +The cfag12864b LCD Display Series don't have a official wiring.
    +
    +The common wiring is done to the parallel port:
    +
    +http://www.skippari.net/lcd/sekalaista/crystalfontz_cfag12864B-TMI-V.png
    +
    +You can get help at Crystalfontz and LCDInfo forums.
    +
    +
    +
    +-------------------------
    +3. USER-SPACE PROGRAMMING
    +-------------------------
    +
    +Include a copy of the provided header:
    +
    + #include "cfag12864b.h"
    +
    +Open the device for writing, /dev/cfag12864b0:
    +
    + int fd = open("/dev/cfag12864b0",O_WRONLY);
    +
    +Then use simple ioctl calls to control it:
    +
    + ioctl(fdisplay,CFAG12864B_IOCOFF); /* Turn off (don't clear) */
    + ioctl(fdisplay,CFAG12864B_IOCON); /* Turn on */
    + ioctl(fdisplay,CFAG12864B_IOCCLEAR); /* Clear the display */
    +
    +For writing to the display, you have two options:
    +
    +
    +3.1. ioctl & 128*64 boolean matrix
    +-------------------------------------------------------
    +
    +This method is easier, but you have to update the entire display
    +each time you want to change it.
    +
    +Note:
    +
    + CFAG12864B_FORMATSIZE ==
    + CFAG12864B_WIDTH * CFAG12864B_HEIGHT ==
    + 128 * 64
    +
    +Declare the matrix and other one:
    +
    + unsigned char MyDrawing[CFAG12864B_WIDTH][CFAG12864B_HEIGHT];
    +
    + unsigned char Buffer[CFAG12864B_FORMATSIZE];
    +
    +Copy the 2d matrix to the buffer , like:
    +
    + for(i = 0; i < CFAG12864B_WIDTH; i++)
    + for(j = 0; j < CFAG12864B_HEIGHT; j++)
    + Buffer[i + j * CFAG12864B_WIDTH] = MyDrawing[i][j];
    +
    +Call the ioctl:
    +
    + ioctl(fdisplay, CFAG12864B_IOCFORMAT, Buffer);
    +
    +Voila! Your drawing should appear on the screen.
    +
    +
    +
    +3.2. Direct writing
    +-------------------
    +
    +This methods allows you to change each byte of the device,
    +so you can achieve a higher update rate updating only the pixels
    +you are going to change.
    +
    +The device size is 1024 == CFAG12864B_SIZE.
    +
    +You can write and seek the device. The first 512 bytes write to
    +the first k0108 controller (left display half) and the last 512 bytes
    +write to the second ks0108 controller (right display half).
    +
    +Each controller is divided into 8 pages. Each page has 64 bytes.
    +
    + Controller 0 Controller 1
    + _________________________
    +Page 0 |____________|____________|
    +Page 1 |____________|____________|
    +Page 2 |____________|____________|
    +Page 3 |____________|____________|
    +Page 4 |____________|____________|
    +Page 5 |____________|____________|
    +Page 6 |____________|____________|
    +Page 7 |____________|____________|
    + <--- 64 --->
    +
    +You will understand how the device work executing some commands:
    +
    + # echo -n A > /dev/cfag12864b0
    + # echo -n a > /dev/cfag12864b0
    + # echo AAAAAA > /dev/cfag12864b0
    + # echo 000000 > /dev/cfag12864b0
    + # echo Hello world! > /dev/cfag12864b0
    + # echo Hello world! Hello world! > /dev/cfag12864b0
    +
    +After you understand it, code your functions to change specific bytes.
    +
    +Use write() and lseek() system calls, like:
    +
    + lseek(fdisplay, ipage * CFAG12864B_HEIGHT, SEEK_SET);
    + lseek(fdisplay, icontroller * CFAG12864B_SIZE / 2, SEEK_SET);
    +
    + write(fdisplay, bufpage, CFAG12864B_HEIGHT);
    + write(fdisplay, bufcontroller, CFAG12864B_SIZE / 2);
    + write(fdisplay, bufdisplay, CFAG12864B_SIZE);
    +
    +
    +---------------
    +4. USEFUL FILES
    +---------------
    +
    +
    +4.1 cfag12864b.h
    +----------------
    +
    +You can use a copy of this header in your user-space programs.
    +
    +---
    +/*
    + * Filename: cfag12864b.h
    + * Version: 0.1.0
    + * Description: cfag12864b LCD Display Driver Header for user-space apps
    + *
    + * Author: Miguel Ojeda Sandonis <maxextreme@gmail.com>
    + * Date: 2006-09-12
    + */
    +
    +#ifndef _CFAG12864B_H_
    +#define _CFAG12864B_H_
    +
    +#include <sys/ioctl.h>
    +
    +#define CFAG12864B_WIDTH 128
    +#define CFAG12864B_HEIGHT 64
    +#define CFAG12864B_FORMATSIZE CFAG12864B_WIDTH*CFAG12864B_HEIGHT
    +#define CFAG12864B_SIZE 1024
    +
    +#define CFAG12864B_IOC_MAGIC 0xFF
    +
    +#define CFAG12864B_IOCOFF _IO(CFAG12864B_IOC_MAGIC,0)
    +#define CFAG12864B_IOCON _IO(CFAG12864B_IOC_MAGIC,1)
    +#define CFAG12864B_IOCCLEAR _IO(CFAG12864B_IOC_MAGIC,2)
    +#define CFAG12864B_IOCFORMAT _IOW(CFAG12864B_IOC_MAGIC,3,void *)
    +
    +#endif // _CFAG12864B_H_
    +---
    +
    +
    +
    +4.2 Example BMP writer
    +----------------------
    +
    +You can take ideas from this code and start programming. I think it is useful
    +for understanding how the driver can be used. It just work, don't expect
    +good BMP-related code. I chose such bitmap format because it is simple.
    +
    +The program reads a .bmp 128x64 2-colors file, convert it to a
    +boolean [128*64] buffer and then use ioctl to display it on the screen.
    +
    +---
    +/*
    + * Filename: bmpwriter.h
    + * Version: 0.1.0
    + * Description: BMP Writer sample app for cfag12864b LCD driver
    + *
    + * Author: Miguel Ojeda Sandonis <maxextreme@gmail.com>
    + * Date: 2006-09-30
    + */
    +
    +#include <stdio.h>
    +#include <stdlib.h>
    +#include <string.h>
    +
    +#include <sys/types.h>
    +#include <sys/stat.h>
    +#include <fcntl.h>
    +
    +#include "cfag12864b.h"
    +
    +#define BMP_SIZE 1024
    +
    +union dword
    +{
    + unsigned int u32;
    + unsigned char u8[4];
    +};
    +
    +#define Bit(n) ((unsigned char)(1<<(n)))
    +
    +void BMP2Format(
    + unsigned char _Src[BMP_SIZE],
    + unsigned char _Dest[CFAG12864B_FORMATSIZE])
    +{
    + const unsigned int Width = CFAG12864B_WIDTH;
    + const unsigned int Height = CFAG12864B_HEIGHT;
    + const unsigned int Bits = 8;
    +
    + unsigned int Y,X,Bit;
    +
    + for(Y=0; Y<Height; ++Y)
    + for(X=0; X<Width/Bits; ++X)
    + for(Bit=0; Bit<Bits; ++Bit)
    + _Dest[X * Bits + Bit + (Height - Y - 1) * Width] =
    + _Src[Y * Width / Bits + X] & Bit(Bits - Bit - 1) ? 0 : 1;
    +}
    +
    +int main(int argc, char * argv[])
    +{
    + const unsigned int Width = CFAG12864B_WIDTH;
    + const unsigned int Height = CFAG12864B_HEIGHT;
    + const unsigned int Size = CFAG12864B_SIZE;
    + const unsigned int BPP = 1;
    + const unsigned int HeaderSize = 0x3E;
    + const unsigned int BMPSize = BMP_SIZE;
    +
    + unsigned char c;
    + unsigned int i,j;
    + union dword n;
    +
    + unsigned char Buffer_BMP[BMP_SIZE];
    + unsigned char Buffer_Matrix[CFAG12864B_FORMATSIZE];
    +
    + int fdisplay;
    + FILE * fbmp;
    +
    + // Check args
    + if(argc!=3) {
    + printf("%s: Bad number of arguments. Expected 3\n",
    + argv[0]);
    + return -1;
    + }
    +
    + // Open file
    + fbmp = fopen(argv[2],"rb");
    + if(fbmp==NULL) {
    + printf("%s: Can't open %s\n",argv[0], argv[2]);
    + return -2;
    + }
    +
    + // Check file size
    + fseek(fbmp,0,SEEK_END);
    + i=ftell(fbmp);
    + if(i!=HeaderSize+Size) {
    + printf("%s: Bad file size. %i instead of %i\n",
    + argv[0], i, HeaderSize+Size);
    + fclose(fbmp);
    + return -3;
    + }
    +
    + // Check both magic BMP bytes
    + fseek(fbmp,0,SEEK_SET);
    + c = fgetc(fbmp);
    + if(c!='B') {
    + printf("%s: Bad first magic byte. '%c' instead of 'B'\n",
    + argv[0], c);
    + fclose(fbmp);
    + return -4;
    + }
    + c = fgetc(fbmp);
    + if(c!='M') {
    + printf("%s: Bad second magic byte. '%c' instead of 'M'\n",
    + argv[0], c);
    + fclose(fbmp);
    + return -5;
    + }
    +
    + // Check this is a 128x64 1-bpp BMP file
    + fseek(fbmp,0x12,SEEK_SET);
    + for(i=0; i<4; ++i)
    + n.u8[i] = fgetc(fbmp);
    + if(n.u32!=Width) {
    + printf("%s: Bad width. %i instead of %i\n",
    + argv[0], n.u32, Width);
    + fclose(fbmp);
    + return -6;
    + }
    + for(i=0; i<4; ++i)
    + n.u8[i] = fgetc(fbmp);
    + if(n.u32!=Height) {
    + printf("%s: Bad width. %i instead of %i\n",
    + argv[0], n.u32, Height);
    + fclose(fbmp);
    + return -7;
    + }
    + fseek(fbmp,0x1C,SEEK_SET);
    + c = fgetc(fbmp);
    + if(c!=BPP) {
    + printf("%s: Bad bpp. %i instead of %i\n",
    + argv[0], c, BPP);
    + fclose(fbmp);
    + return -8;
    + }
    +
    + // Get bitmap data
    + fseek(fbmp,0x3E,SEEK_SET);
    + fread(Buffer_BMP,1,BMPSize,fbmp);
    + fclose(fbmp);
    +
    + // Transform BMP data to 2D matrix
    + BMP2Format(Buffer_BMP,Buffer_Matrix);
    +
    + // Open file
    + fdisplay = open(argv[1],O_WRONLY);
    + if(fdisplay < 0) {
    + printf("%s: Can't open %s\n", argv[0], argv[1]);
    + return -9;
    + }
    +
    + // Send matrix
    + ioctl(fdisplay,CFAG12864B_IOCFORMAT,Buffer_Matrix);
    +
    + // Close file
    + close(fdisplay);
    +
    + return 0;
    +}
    +---
    +
    +
    +EOF
    diff -uprN -X dontdiff linux-2.6.18-vanilla/Documentation/lcddisplay/lcddisplay linux-2.6.18/Documentation/lcddisplay/lcddisplay
    --- linux-2.6.18-vanilla/Documentation/lcddisplay/lcddisplay 1970-01-01 00:00:00.000000000 +0000
    +++ linux-2.6.18/Documentation/lcddisplay/lcddisplay 2006-09-30 12:07:59.000000000 +0000
    @@ -0,0 +1,37 @@
    + =================================
    + LCD Display Drivers Documentation
    + =================================
    +
    +License: GPL
    +Author & Maintainer: Miguel Ojeda Sandonis <maxextreme@gmail.com>
    +Date: 2006-09-30
    +
    +--------
    +0. INDEX
    +--------
    +
    + 1. NEW DISPLAY DRIVERS
    + 2. GENERAL TIPS
    +
    +
    +
    +----------------------
    +1. NEW DISPLAY DRIVERS
    +----------------------
    +
    +Feel free to send me new display drivers. I will try to do my best.
    +
    +If you don't get any answer, send your patch directly to the linux-kernel ml.
    +
    +
    +
    +---------------
    +2. GENERAL TIPS
    +---------------
    +
    +- Divide your driver into the controller driver, like ks0108,
    + and the specific LCD display series driver, like cfag12864b.
    +
    +- Claim for your IO ports in the controller driver.
    +
    +EOF
    diff -uprN -X dontdiff linux-2.6.18-vanilla/Documentation/ioctl-number.txt linux-2.6.18/Documentation/ioctl-number.txt
    --- linux-2.6.18-vanilla/Documentation/ioctl-number.txt 2006-09-20 03:42:06.000000000 +0000
    +++ linux-2.6.18/Documentation/ioctl-number.txt 2006-09-27 19:15:13.000000000 +0000
    @@ -191,3 +191,5 @@ Code Seq# Include File Comments
    <mailto:aherrman@de.ibm.com>
    0xF3 00-3F video/sisfb.h sisfb (in development)
    <mailto:thomas@winischhofer.net>
    +0xFF 00-1F linux/cfag12864b.h cfag12864b LCD Display Driver
    + <mailto:maxextreme@gmail.com>
    diff -uprN -X dontdiff linux-2.6.18-vanilla/CREDITS linux-2.6.18/CREDITS
    --- linux-2.6.18-vanilla/CREDITS 2006-09-20 03:42:06.000000000 +0000
    +++ linux-2.6.18/CREDITS 2006-09-27 19:15:13.000000000 +0000
    @@ -2535,6 +2535,14 @@ S: Subiaco, 6008
    S: Perth, Western Australia
    S: Australia

    +N: Miguel Ojeda Sandonis
    +E: maxextreme@gmail.com
    +D: Author: LCD Display Drivers (ks0108, cfag12864b)
    +D: Maintainer: LCD Display Drivers Tree (drivers/lcddisplay/*)
    +S: C/ Mieses 20, 9-B
    +S: Valladolid 47009
    +S: Spain
    +
    N: Greg Page
    E: gpage@sovereign.org
    D: IPX development and support
    diff -uprN -X dontdiff linux-2.6.18-vanilla/MAINTAINERS linux-2.6.18/MAINTAINERS
    --- linux-2.6.18-vanilla/MAINTAINERS 2006-09-20 03:42:06.000000000 +0000
    +++ linux-2.6.18/MAINTAINERS 2006-09-27 19:15:13.000000000 +0000
    @@ -1707,6 +1707,11 @@ M: James.Bottomley@HansenPartnership.com
    L: linux-scsi@vger.kernel.org
    S: Maintained

    +LCD DISPLAY DRIVERS
    +P: Miguel Ojeda Sandonis
    +M: maxextreme@gmail.com
    +S: Maintained
    +
    LED SUBSYSTEM
    P: Richard Purdie
    M: rpurdie@rpsys.net
    -
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