viafb: iface.c, iface.h, ioctl.c, ioctl.h
iface.c, iface.h: support getting video memory from backdoor. ioctl.c, ioctl.h: support user mode application with additional information Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joseph Chan
Linus Torvalds
parent
d61e0bf38e
commit
c91b557ad0
4 changed files with 438 additions and 0 deletions
78
drivers/video/via/iface.c
Normal file
78
drivers/video/via/iface.c
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@ -0,0 +1,78 @@
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/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* either version 2, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE.See the GNU General Public License
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* for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "global.h"
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/* Get frame buffer size from VGA BIOS */
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unsigned int viafb_get_memsize(void)
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{
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unsigned int m;
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/* If memory size provided by user */
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if (viafb_memsize)
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m = viafb_memsize * Mb;
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else {
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m = (unsigned int)viafb_read_reg(VIASR, SR39);
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m = m * (4 * Mb);
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if ((m < (16 * Mb)) || (m > (64 * Mb)))
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m = 16 * Mb;
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}
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DEBUG_MSG(KERN_INFO "framebuffer size = %d Mb\n", m / Mb);
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return m;
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}
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/* Get Video Buffer Starting Physical Address(back door)*/
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unsigned long viafb_get_videobuf_addr(void)
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{
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struct pci_dev *pdev = NULL;
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unsigned char sys_mem;
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unsigned char video_mem;
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unsigned long sys_mem_size;
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unsigned long video_mem_size;
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/*system memory = 256 MB, video memory 64 MB */
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unsigned long vmem_starting_adr = 0x0C000000;
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pdev =
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(struct pci_dev *)pci_get_device(VIA_K800_BRIDGE_VID,
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VIA_K800_BRIDGE_DID, NULL);
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if (pdev != NULL) {
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pci_read_config_byte(pdev, VIA_K800_SYSTEM_MEMORY_REG,
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&sys_mem);
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pci_read_config_byte(pdev, VIA_K800_VIDEO_MEMORY_REG,
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&video_mem);
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video_mem = (video_mem & 0x70) >> 4;
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sys_mem_size = ((unsigned long)sys_mem) << 24;
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if (video_mem != 0)
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video_mem_size = (1 << (video_mem)) * 1024 * 1024;
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else
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video_mem_size = 0;
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vmem_starting_adr = sys_mem_size - video_mem_size;
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pci_dev_put(pdev);
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}
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DEBUG_MSG(KERN_INFO "Video Memory Starting Address = %lx \n",
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vmem_starting_adr);
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return vmem_starting_adr;
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}
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38
drivers/video/via/iface.h
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38
drivers/video/via/iface.h
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@ -0,0 +1,38 @@
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/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* either version 2, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE.See the GNU General Public License
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* for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __IFACE_H__
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#define __IFACE_H__
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#define Kb (1024)
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#define Mb (Kb*Kb)
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#define VIA_K800_BRIDGE_VID 0x1106
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#define VIA_K800_BRIDGE_DID 0x3204
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#define VIA_K800_SYSTEM_MEMORY_REG 0x47
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#define VIA_K800_VIDEO_MEMORY_REG 0xA1
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extern int viafb_memsize;
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unsigned int viafb_get_memsize(void);
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unsigned long viafb_get_videobuf_addr(void);
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#endif /* __IFACE_H__ */
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112
drivers/video/via/ioctl.c
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112
drivers/video/via/ioctl.c
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/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* either version 2, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE.See the GNU General Public License
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* for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "global.h"
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int viafb_ioctl_get_viafb_info(u_long arg)
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{
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struct viafb_ioctl_info viainfo;
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viainfo.viafb_id = VIAID;
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viainfo.vendor_id = PCI_VIA_VENDOR_ID;
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switch (viaparinfo->chip_info->gfx_chip_name) {
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case UNICHROME_CLE266:
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viainfo.device_id = UNICHROME_CLE266_DID;
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break;
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case UNICHROME_K400:
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viainfo.device_id = UNICHROME_K400_DID;
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break;
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case UNICHROME_K800:
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viainfo.device_id = UNICHROME_K800_DID;
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break;
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case UNICHROME_PM800:
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viainfo.device_id = UNICHROME_PM800_DID;
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break;
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case UNICHROME_CN700:
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viainfo.device_id = UNICHROME_CN700_DID;
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break;
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case UNICHROME_CX700:
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viainfo.device_id = UNICHROME_CX700_DID;
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break;
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case UNICHROME_K8M890:
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viainfo.device_id = UNICHROME_K8M890_DID;
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break;
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case UNICHROME_P4M890:
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viainfo.device_id = UNICHROME_P4M890_DID;
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break;
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case UNICHROME_P4M900:
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viainfo.device_id = UNICHROME_P4M900_DID;
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break;
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}
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viainfo.version = VERSION_MAJOR;
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viainfo.revision = VERSION_MINOR;
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if (copy_to_user((void __user *)arg, &viainfo, sizeof(viainfo)))
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return -EFAULT;
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return 0;
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}
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/* Hot-Plug Priority: DVI > CRT*/
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int viafb_ioctl_hotplug(int hres, int vres, int bpp)
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{
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int DVIsense, status = 0;
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DEBUG_MSG(KERN_INFO "viafb_ioctl_hotplug!!\n");
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if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name !=
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NON_TMDS_TRANSMITTER) {
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DVIsense = viafb_dvi_sense();
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if (DVIsense) {
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DEBUG_MSG(KERN_INFO "DVI Attached...\n");
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if (viafb_DeviceStatus != DVI_Device) {
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viafb_DVI_ON = 1;
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viafb_CRT_ON = 0;
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viafb_LCD_ON = 0;
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viafb_DeviceStatus = DVI_Device;
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return viafb_DeviceStatus;
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}
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status = 1;
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} else
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DEBUG_MSG(KERN_INFO "DVI De-attached...\n");
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}
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if ((viafb_DeviceStatus != CRT_Device) && (status == 0)) {
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viafb_CRT_ON = 1;
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viafb_DVI_ON = 0;
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viafb_LCD_ON = 0;
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viafb_DeviceStatus = CRT_Device;
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return viafb_DeviceStatus;
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}
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return 0;
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}
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210
drivers/video/via/ioctl.h
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210
drivers/video/via/ioctl.h
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/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* either version 2, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE.See the GNU General Public License
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* for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __IOCTL_H__
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#define __IOCTL_H__
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#ifndef __user
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#define __user
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#endif
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/* VIAFB IOCTL definition */
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#define VIAFB_GET_INFO_SIZE 0x56494101 /* 'VIA\01' */
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#define VIAFB_GET_INFO 0x56494102 /* 'VIA\02' */
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#define VIAFB_HOTPLUG 0x56494103 /* 'VIA\03' */
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#define VIAFB_SET_HOTPLUG_FLAG 0x56494104 /* 'VIA\04' */
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#define VIAFB_GET_RESOLUTION 0x56494105 /* 'VIA\05' */
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#define VIAFB_GET_SAMM_INFO 0x56494107 /* 'VIA\07' */
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#define VIAFB_TURN_ON_OUTPUT_DEVICE 0x56494108 /* 'VIA\08' */
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#define VIAFB_TURN_OFF_OUTPUT_DEVICE 0x56494109 /* 'VIA\09' */
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#define VIAFB_SET_DEVICE 0x5649410A
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#define VIAFB_GET_DEVICE 0x5649410B
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#define VIAFB_GET_DRIVER_VERSION 0x56494112 /* 'VIA\12' */
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#define VIAFB_GET_CHIP_INFO 0x56494113 /* 'VIA\13' */
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#define VIAFB_SET_DEVICE_INFO 0x56494114
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#define VIAFB_GET_DEVICE_INFO 0x56494115
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#define VIAFB_GET_DEVICE_SUPPORT 0x56494118
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#define VIAFB_GET_DEVICE_CONNECT 0x56494119
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#define VIAFB_GET_PANEL_SUPPORT_EXPAND 0x5649411A
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#define VIAFB_GET_DRIVER_NAME 0x56494122
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#define VIAFB_GET_DEVICE_SUPPORT_STATE 0x56494123
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#define VIAFB_GET_GAMMA_LUT 0x56494124
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#define VIAFB_SET_GAMMA_LUT 0x56494125
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#define VIAFB_GET_GAMMA_SUPPORT_STATE 0x56494126
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#define VIAFB_SET_VIDEO_DEVICE 0x56494127
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#define VIAFB_GET_VIDEO_DEVICE 0x56494128
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#define VIAFB_SET_SECOND_MODE 0x56494129
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#define VIAFB_SYNC_SURFACE 0x56494130
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#define VIAFB_GET_DRIVER_CAPS 0x56494131
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#define VIAFB_GET_IGA_SCALING_INFO 0x56494132
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#define VIAFB_GET_PANEL_MAX_SIZE 0x56494133
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#define VIAFB_GET_PANEL_MAX_POSITION 0x56494134
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#define VIAFB_SET_PANEL_SIZE 0x56494135
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#define VIAFB_SET_PANEL_POSITION 0x56494136
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#define VIAFB_GET_PANEL_POSITION 0x56494137
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#define VIAFB_GET_PANEL_SIZE 0x56494138
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#define None_Device 0x00
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#define CRT_Device 0x01
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#define LCD_Device 0x02
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#define DVI_Device 0x08
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#define CRT2_Device 0x10
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#define LCD2_Device 0x40
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#define OP_LCD_CENTERING 0x01
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#define OP_LCD_PANEL_ID 0x02
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#define OP_LCD_MODE 0x03
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/*SAMM operation flag*/
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#define OP_SAMM 0x80
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#define LCD_PANEL_ID_MAXIMUM 22
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#define STATE_ON 0x1
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#define STATE_OFF 0x0
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#define STATE_DEFAULT 0xFFFF
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#define MAX_ACTIVE_DEV_NUM 2
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struct device_t {
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unsigned short crt:1;
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unsigned short dvi:1;
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unsigned short lcd:1;
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unsigned short samm:1;
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unsigned short lcd_dsp_cent:1;
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unsigned char lcd_mode:1;
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unsigned short epia_dvi:1;
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unsigned short lcd_dual_edge:1;
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unsigned short lcd2:1;
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unsigned short primary_dev;
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unsigned char lcd_panel_id;
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unsigned short xres, yres;
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unsigned short xres1, yres1;
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unsigned short refresh;
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unsigned short bpp;
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unsigned short refresh1;
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unsigned short bpp1;
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unsigned short sequence;
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unsigned short bus_width;
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};
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struct viafb_ioctl_info {
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u32 viafb_id; /* for identifying viafb */
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#define VIAID 0x56494146 /* Identify myself with 'VIAF' */
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u16 vendor_id;
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u16 device_id;
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u8 version;
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u8 revision;
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u8 reserved[246]; /* for future use */
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};
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struct viafb_ioctl_mode {
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u32 xres;
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u32 yres;
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u32 refresh;
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u32 bpp;
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u32 xres_sec;
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u32 yres_sec;
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u32 virtual_xres_sec;
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u32 virtual_yres_sec;
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u32 refresh_sec;
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u32 bpp_sec;
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};
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struct viafb_ioctl_samm {
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u32 samm_status;
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u32 size_prim;
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u32 size_sec;
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u32 mem_base;
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u32 offset_sec;
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};
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struct viafb_driver_version {
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int iMajorNum;
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int iKernelNum;
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int iOSNum;
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int iMinorNum;
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};
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struct viafb_ioctl_lcd_attribute {
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unsigned int panel_id;
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unsigned int display_center;
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unsigned int lcd_mode;
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};
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struct viafb_ioctl_setting {
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/* Enable or disable active devices */
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unsigned short device_flag;
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/* Indicate which device should be turn on or turn off. */
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unsigned short device_status;
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unsigned int reserved;
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/* Indicate which LCD's attribute can be changed. */
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unsigned short lcd_operation_flag;
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/* 1: SAMM ON 0: SAMM OFF */
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unsigned short samm_status;
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/* horizontal resolution of first device */
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unsigned short first_dev_hor_res;
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/* vertical resolution of first device */
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unsigned short first_dev_ver_res;
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/* horizontal resolution of second device */
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unsigned short second_dev_hor_res;
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/* vertical resolution of second device */
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unsigned short second_dev_ver_res;
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/* refresh rate of first device */
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unsigned short first_dev_refresh;
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/* bpp of first device */
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unsigned short first_dev_bpp;
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/* refresh rate of second device */
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unsigned short second_dev_refresh;
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/* bpp of second device */
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unsigned short second_dev_bpp;
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/* Indicate which device are primary display device. */
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unsigned int primary_device;
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/* Indicate which device will show video. only valid in duoview mode */
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unsigned int video_device_status;
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unsigned int struct_reserved[34];
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struct viafb_ioctl_lcd_attribute lcd_attributes;
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};
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struct _UTFunctionCaps {
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unsigned int dw3DScalingState;
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unsigned int reserved[31];
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};
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struct _POSITIONVALUE {
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unsigned int dwX;
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unsigned int dwY;
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};
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struct _panel_size_pos_info {
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unsigned int device_type;
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int x;
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int y;
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};
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extern int viafb_LCD_ON;
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extern int viafb_DVI_ON;
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int viafb_ioctl_get_viafb_info(u_long arg);
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int viafb_ioctl_hotplug(int hres, int vres, int bpp);
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#endif /* __IOCTL_H__ */
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