kdraw-1-17.tar

home/midas/openwrt_widora/package/kernel/kdraw/0000775000175000017500000000000013037335050021106 5ustar  midasmidashome/midas/openwrt_widora/package/kernel/kdraw/src/0000775000175000017500000000000013037352075021703 5ustar  midasmidashome/midas/openwrt_widora/package/kernel/kdraw/src/Makefile0000664000175000017500000000003513037351651023340 0ustar  midasmidasobj-$(CONFIG_KDRAW)+=kdraw.o
home/midas/openwrt_widora/package/kernel/kdraw/src/kdraw.c0000775000175000017500000001406513037361257023172 0ustar  midasmidas/***************************** 
*
*   驱动程序模板
*   版本：V1
*   使用方法(末行模式下)：
*   :%s/kdraw/"你的驱动名称"/g
*
*******************************/


#include <linux/mm.h>
#include <linux/miscdevice.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/mman.h>
#include <linux/random.h>
#include <linux/init.h>
#include <linux/raw.h>
#include <linux/tty.h>
#include <linux/capability.h>
#include <linux/ptrace.h>
#include <linux/device.h>
#include <linux/highmem.h>
#include <linux/crash_dump.h>
#include <linux/backing-dev.h>
#include <linux/bootmem.h>
#include <linux/splice.h>
#include <linux/pfn.h>
#include <linux/export.h>
#include <linux/io.h>
#include <linux/aio.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <asm/uaccess.h>
#include <linux/ioctl.h>


/****************  基本定义 **********************/
//内核空间缓冲区定义
#if 0
	#define KB_MAX_SIZE 20
	#define kbuf[KB_MAX_SIZE];
#endif

//加密函数参数内容： _IOW(IOW_CHAR , IOW_NUMn , IOW_TYPE)
//加密函数用于kdraw_ioctl函数中
//使用举例：ioctl(fd , _IOW('L',0x80,long) , 0x1);
//#define NUMn kdraw , if you need!
#define IOW_CHAR 'L'
#define IOW_TYPE  long
#define IOW_NUM1  0x80


//初始化函数必要资源定义
//用于初始化函数当中
//device number;
	dev_t dev_num;
//struct char dev
	struct cdev kdraw_cdev;
//auto "mknode /dev/kdraw c dev_num minor_num"
struct class *kdraw_class = NULL;
struct device *kdraw_device = NULL;


/**************** 结构体 file_operations 成员函数 *****************/
//open
static int kdraw_open(struct inode *inode, struct file *file)
{
	printk("kdraw drive open...\n");


	return 0;
}

//close
static int kdraw_close(struct inode *inode , struct file *file)
{
	printk("kdraw drive close...\n");


	return 0;
}

//read
static ssize_t kdraw_read(struct file *file, char __user *buffer,
			size_t len, loff_t *pos)
{
	int ret_v = 0;
	printk("kdraw drive read...\n");


	return ret_v;
}

//write
static ssize_t kdraw_write( struct file *file , const char __user *buffer,
			   size_t len , loff_t *offset )
{
	int ret_v = 0;
	printk("kdraw drive write...\n");


	return ret_v;
}

//unlocked_ioctl
static int kdraw_ioctl (struct file *filp , unsigned int cmd , unsigned long arg)
{
	int ret_v = 0;
	printk("kdraw drive ioctl...\n");

	switch(cmd)
	{
		//常规：
		//cmd值自行进行修改
		case 0x1:
		{
			if(arg == 0x1) //第二条件；
			{

			}
		}
		break;

		//带密码保护：
		//请在"基本定义"进行必要的定义
		case _IOW(IOW_CHAR,IOW_NUM1,IOW_TYPE):
		{
			if(arg == 0x1) //第二条件
			{
				
			}

		}
		break;

		default:
			break;
	}

	return ret_v;
}


/***************** 结构体： file_operations ************************/
//struct
static const struct file_operations kdraw_fops = {
	.owner   = THIS_MODULE,
	.open	 = kdraw_open,
	.release = kdraw_close,	
	.read	 = kdraw_read,
	.write   = kdraw_write,
	.unlocked_ioctl	= kdraw_ioctl,
};


/*************  functions: init , exit*******************/
//条件值变量，用于指示资源是否正常使用
unsigned char init_flag = 0;
unsigned char add_code_flag = 0;

//init
static __init int kdraw_init(void)
{
	int ret_v = 0;
	printk("kdraw drive init...\n");

	//函数alloc_chrdev_region主要参数说明：
	//参数2： 次设备号
	//参数3： 创建多少个设备
	if( ( ret_v = alloc_chrdev_region(&dev_num,0,1,"kdraw_proc") ) < 0 ) //--create a group of dev numbers in /proc/devices
	{
		goto dev_reg_error;
	}
	init_flag = 1; //标示设备创建成功；

	printk("The drive info of kdraw:\nmajor: %d\nminor: %d\n",
		MAJOR(dev_num),MINOR(dev_num));

	cdev_init(&kdraw_cdev,&kdraw_fops); //--init a char dev
	if( (ret_v = cdev_add(&kdraw_cdev,dev_num,1)) != 0 ) //--here dev_num and cdev are being related
	{
		goto cdev_add_error;
	}

	kdraw_class = class_create(THIS_MODULE,"kdraw_class");  //-- to create /sys/class/kdraw-class
	if( IS_ERR(kdraw_class) )
	{
		goto class_c_error;
	}

	kdraw_device = device_create(kdraw_class,NULL,dev_num,NULL,"kdraw_dev"); //--create /dev/kdraw-dev
	if( IS_ERR(kdraw_device) )
	{
		goto device_c_error;
	}
	printk("auto mknod success!\n");

	//------------   请在此添加您的初始化程序  --------------//
       



        //如果需要做错误处理，请：goto kdraw_error;	

	 add_code_flag = 1;
	//----------------------  END  ---------------------------// 

	goto init_success;

dev_reg_error:
	printk("alloc_chrdev_region failed\n");	
	return ret_v;

cdev_add_error:
	printk("cdev_add failed\n");
 	unregister_chrdev_region(dev_num, 1);
	init_flag = 0;
	return ret_v;

class_c_error:
	printk("class_create failed\n");
	cdev_del(&kdraw_cdev);
 	unregister_chrdev_region(dev_num, 1);
	init_flag = 0;
	return PTR_ERR(kdraw_class);

device_c_error:
	printk("device_create failed\n");
	cdev_del(&kdraw_cdev);
 	unregister_chrdev_region(dev_num, 1);
	class_destroy(kdraw_class);
	init_flag = 0;
	return PTR_ERR(kdraw_device);

//------------------ 请在此添加您的错误处理内容 ----------------//
kdraw_error:
		



	add_code_flag = 0;
	return -1;
//--------------------          END         -------------------//
    
init_success:
	printk("-----  kdraw init success!  ------\n");
	return 0;
}

//exit
static __exit void kdraw_exit(void)
{
	printk("-----  kdraw drive exit...  ----\n");	

	if(add_code_flag == 1)
 	{   
           //----------   请在这里释放您的程序占有的资源   ---------//
	    printk("free your resources...\n");	               





	    printk("free finish\n");		               
	    //----------------------     END      -------------------//
	}					            

	if(init_flag == 1)
	{
		//释放初始化使用到的资源;
		cdev_del(&kdraw_cdev);
 		unregister_chrdev_region(dev_num, 1);
		device_unregister(kdraw_device);
		class_destroy(kdraw_class);
	}
}


/**************** module operations**********************/
//module loading
module_init(kdraw_init);
module_exit(kdraw_exit);

//some infomation
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("from Jafy, Midas-Zhou");
MODULE_DESCRIPTION("kdraw drive");


/*********************  The End ***************************/
home/midas/openwrt_widora/package/kernel/kdraw/src/Kconfig0000644000000000000000000000012513037352075022724 0ustar  rootrootconfig KDRAW
tristate "kdraw"
default m
help
   This is a kernel driver for spi draw
home/midas/openwrt_widora/package/kernel/kdraw/Makefile0000664000175000017500000000210113037351526022546 0ustar  midasmidas#
# Copyright (C) 2008 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk

PKG_NAME:=kdraw
PKG_RELEASE:=1

include $(INCLUDE_DIR)/package.mk

define KernelPackage/kdraw
  SUBMENU:=Other modules
  TITLE:=kdraw
  FILES:=$(PKG_BUILD_DIR)/kdraw.ko
  KCONFIG:=
endef

define KernelPackage/kdraw/description
  This is KDRAW driver for spi kernel pic draw.
endef

EXTRA_KCONFIG:= \
	CONFIG_KDRAW=m

EXTRA_CFLAGS:= \
	$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=m,%,$(filter %=m,$(EXTRA_KCONFIG)))) \
	$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=y,%,$(filter %=y,$(EXTRA_KCONFIG)))) \

MAKE_OPTS:= \
	ARCH="$(LINUX_KARCH)" \
	CROSS_COMPILE="$(TARGET_CROSS)" \
	SUBDIRS="$(PKG_BUILD_DIR)" \
	EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
	$(EXTRA_KCONFIG)

define Build/Prepare
	mkdir -p $(PKG_BUILD_DIR)
	$(CP) ./src/* $(PKG_BUILD_DIR)/
endef

define Build/Compile
	$(MAKE) -C "$(LINUX_DIR)" \
		$(MAKE_OPTS) \
		modules
endef

$(eval $(call KernelPackage,kdraw))