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kernel/linux-imx6_3.14.28/drivers/video/via/ioctl.c 2.78 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
   * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
  
   * 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, or (at your option) any later version.
  
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; 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 "global.h"
  
  int viafb_ioctl_get_viafb_info(u_long arg)
  {
  	struct viafb_ioctl_info viainfo;
  
  	memset(&viainfo, 0, sizeof(struct viafb_ioctl_info));
  
  	viainfo.viafb_id = VIAID;
  	viainfo.vendor_id = PCI_VIA_VENDOR_ID;
  
  	switch (viaparinfo->chip_info->gfx_chip_name) {
  	case UNICHROME_CLE266:
  		viainfo.device_id = UNICHROME_CLE266_DID;
  		break;
  
  	case UNICHROME_K400:
  		viainfo.device_id = UNICHROME_K400_DID;
  		break;
  
  	case UNICHROME_K800:
  		viainfo.device_id = UNICHROME_K800_DID;
  		break;
  
  	case UNICHROME_PM800:
  		viainfo.device_id = UNICHROME_PM800_DID;
  		break;
  
  	case UNICHROME_CN700:
  		viainfo.device_id = UNICHROME_CN700_DID;
  		break;
  
  	case UNICHROME_CX700:
  		viainfo.device_id = UNICHROME_CX700_DID;
  		break;
  
  	case UNICHROME_K8M890:
  		viainfo.device_id = UNICHROME_K8M890_DID;
  		break;
  
  	case UNICHROME_P4M890:
  		viainfo.device_id = UNICHROME_P4M890_DID;
  		break;
  
  	case UNICHROME_P4M900:
  		viainfo.device_id = UNICHROME_P4M900_DID;
  		break;
  	}
  
  	viainfo.version = VERSION_MAJOR;
  	viainfo.revision = VERSION_MINOR;
  
  	if (copy_to_user((void __user *)arg, &viainfo, sizeof(viainfo)))
  		return -EFAULT;
  
  	return 0;
  }
  
  /* Hot-Plug Priority: DVI > CRT*/
  int viafb_ioctl_hotplug(int hres, int vres, int bpp)
  {
  	int DVIsense, status = 0;
  	DEBUG_MSG(KERN_INFO "viafb_ioctl_hotplug!!
  ");
  
  	if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name !=
  		NON_TMDS_TRANSMITTER) {
  		DVIsense = viafb_dvi_sense();
  
  		if (DVIsense) {
  			DEBUG_MSG(KERN_INFO "DVI Attached...
  ");
  			if (viafb_DeviceStatus != DVI_Device) {
  				viafb_DVI_ON = 1;
  				viafb_CRT_ON = 0;
  				viafb_LCD_ON = 0;
  				viafb_DeviceStatus = DVI_Device;
  				viafb_set_iga_path();
  				return viafb_DeviceStatus;
  			}
  			status = 1;
  		} else
  			DEBUG_MSG(KERN_INFO "DVI De-attached...
  ");
  	}
  
  	if ((viafb_DeviceStatus != CRT_Device) && (status == 0)) {
  		viafb_CRT_ON = 1;
  		viafb_DVI_ON = 0;
  		viafb_LCD_ON = 0;
  
  		viafb_DeviceStatus = CRT_Device;
  		viafb_set_iga_path();
  		return viafb_DeviceStatus;
  	}
  
  	return 0;
  }