/* * (C) Copyright 2002 * St�ubli 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> #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 */ ) { }