/* * can_ioctl - can4linux CAN driver module * * can4linux -- LINUX CAN device driver source *  * This file is subject to the terms and conditions of the GNU General Public * License.  See the file "COPYING" in the main directory of this archive * for more details. *  * Copyright (c) 2001 port GmbH Halle/Saale * (c) 2001 Heinz-J黵gen Oertel (oe@port.de) *          Claus Schroeter (clausi@chemie.fu-berlin.de) *------------------------------------------------------------------ * $Header: /z2/cvsroot/products/0530/software/can4linux/src/can_ioctl.c,v 1.13 2005/08/29 08:49:52 oe Exp $ * *-------------------------------------------------------------------------- * * * modification history * -------------------- * $Log: can_ioctl.c,v $ * Revision 1.13  2005/08/29 08:49:52  oe * - added support for ListenOnlyMode * - added support for frame self reception mode * * * * *-------------------------------------------------------------------------- *//*** \file can_ioctl.c* \author Heinz-J黵gen Oertel, port GmbH* $Revision: 1.13 $* $Date: 2005/08/29 08:49:52 $***/#include "at91_uart_defs.h"int at91_uart_ioctl( __LDDK_IOCTL_PARAM ){void *argp;void *data,*addr;int retval = -EIO;int i,j;	struct at91_uart_port *port;	port=file->private_data;     switch(cmd){        case CMD_INIT:	if( !access_ok(VERIFY_READ, (void *)arg, sizeof(Command_par))) {		return(retval); 	  }	  if( !access_ok(VERIFY_WRITE, (void *)arg, sizeof(Command_par))) {	     return(retval); 	  }	Lcdinit();		  break;      case CMD_UPDATA:	  if( !access_ok(VERIFY_READ, (void *)arg, sizeof(Command_par))) {	     return(retval); 	  }	  if( !access_ok(VERIFY_WRITE, (void *)arg, sizeof(Command_par))) {	     return(retval); 	  }	  argp = (void *) kmalloc( sizeof(Command_par) +1 , GFP_KERNEL );	  __lddk_copy_from_user( (void *)argp, (Command_par *)arg,	  					sizeof(Command_par));		data = (void *) kmalloc(  ((Command_par *) argp)->lenth , GFP_KERNEL );	  __lddk_copy_from_user( (void *)data, (void *)( ((Command_par *) argp)->addr ),	  					((Command_par *) argp)->lenth );	  						//更新顯示區域	  						  					    for(i=0; i<((Command_par *) argp)->h; i++)			// 輸出h行數據    {  // 計算出更新區域的buffer地址       addr = data + ( ((Command_par *) argp)->y + ( ((Command_par *) argp)->x )>>3 );              // 輸出一行(w)數據           Lcd_Two_Para_WR( (((Command_par *) argp)->x >> 3 ) , ((Command_par *) argp)->y, INS_SET_ADR_PTR );       	Lcd_Non_Para_WR( INS_DAT_AUT_WR );
	Lcd_RW_Busy();
	Lcd_Aut_RW_Busy();                     for(j=0; j<w; j++)       {        		T6963C_PUT_DATA(port,*addr);		Lcd_Aut_RW_Busy();          	addr++;       }              // 指向下一行       y++;    }	  						  kfree(argp);	  kfree(data);	  break;       default:	return -EINVAL;    }    return 1;}