/* * (C) Copyright 2002 * St鋟bli Faverges - <www.staubli.com> * Pierre AUBERT  p.aubert@staubli.com * * (C) Copyright 2005 * Martin Krause TQ-Systems GmbH martin.krause@tqs.de * * See file CREDITS for list of people who contributed to this * project. * * 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 *//* * Basic video support for SMI SM501 "Voyager" graphic controller */#include <common.h>#ifdef CONFIG_VIDEO_SM501#include <video_fb.h>#include <sm501.h>#define read8(ptrReg)                \    *(volatile unsigned char *)(sm501.isaBase + ptrReg)#define write8(ptrReg,value) \    *(volatile unsigned char *)(sm501.isaBase + ptrReg) = value#define read16(ptrReg) \    (*(volatile unsigned short *)(sm501.isaBase + ptrReg))#define write16(ptrReg,value) \    (*(volatile unsigned short *)(sm501.isaBase + ptrReg) = value)#define read32(ptrReg) \    (*(volatile unsigned int *)(sm501.isaBase + ptrReg))#define write32(ptrReg, value) \    (*(volatile unsigned int *)(sm501.isaBase + ptrReg) = value)GraphicDevice sm501;/*----------------------------------------------------------------------------- * SmiSetRegs -- *----------------------------------------------------------------------------- */static void SmiSetRegs (void){	/*	 * The content of the chipset register depends on the board (clocks,	 * ...)	 */	const SMI_REGS *preg = board_get_regs ();	while (preg->Index) {		write32 (preg->Index, preg->Value);		/*		 * Insert a delay between		 */		udelay (1000);		preg ++;	}}/*----------------------------------------------------------------------------- * video_hw_init -- *----------------------------------------------------------------------------- */void *video_hw_init (void){	unsigned int *vm, i;	memset (&sm501, 0, sizeof (GraphicDevice));	/*	 * Initialization of the access to the graphic chipset Retreive base	 * address of the chipset (see board/RPXClassic/eccx.c)	 */	if ((sm501.isaBase = board_video_init ()) == 0) {		return (NULL);	}	if ((sm501.frameAdrs = board_video_get_fb ()) == 0) {		return (NULL);	}	sm501.winSizeX = board_get_width ();	sm501.winSizeY = board_get_height ();#if defined(CONFIG_VIDEO_SM501_8BPP)	sm501.gdfIndex = GDF__8BIT_INDEX;	sm501.gdfBytesPP = 1;#elif defined(CONFIG_VIDEO_SM501_16BPP)	sm501.gdfIndex = GDF_16BIT_565RGB;	sm501.gdfBytesPP = 2;#elif defined(CONFIG_VIDEO_SM501_32BPP)	sm501.gdfIndex = GDF_32BIT_X888RGB;	sm501.gdfBytesPP = 4;#else#error Unsupported SM501 BPP#endif	sm501.memSize = sm501.winSizeX * sm501.winSizeY * sm501.gdfBytesPP;	/* Load Smi registers */	SmiSetRegs ();	/* (see board/RPXClassic/RPXClassic.c) */	board_validate_screen (sm501.isaBase);	/* Clear video memory */	i = sm501.memSize/4;	vm = (unsigned int *)sm501.frameAdrs;	while(i--)		*vm++ = 0;	return (&sm501);}/*----------------------------------------------------------------------------- * video_set_lut -- *----------------------------------------------------------------------------- */void video_set_lut (	unsigned int index,           /* color number */	unsigned char r,              /* red */	unsigned char g,              /* green */	unsigned char b               /* blue */	){}#endif /* CONFIG_VIDEO_SM501 */