3 * Stäubli Faverges - <www.staubli.com>
4 * Pierre AUBERT p.aubert@staubli.com
7 * Martin Krause TQ-Systems GmbH martin.krause@tqs.de
9 * See file CREDITS for list of people who contributed to this
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 * Basic video support for SMI SM501 "Voyager" graphic controller
37 #define read8(ptrReg) \
38 *(volatile unsigned char *)(sm501.isaBase + ptrReg)
40 #define write8(ptrReg,value) \
41 *(volatile unsigned char *)(sm501.isaBase + ptrReg) = value
43 #define read16(ptrReg) \
44 (*(volatile unsigned short *)(sm501.isaBase + ptrReg))
46 #define write16(ptrReg,value) \
47 (*(volatile unsigned short *)(sm501.isaBase + ptrReg) = value)
49 #define read32(ptrReg) \
50 (*(volatile unsigned int *)(sm501.isaBase + ptrReg))
52 #define write32(ptrReg, value) \
53 (*(volatile unsigned int *)(sm501.isaBase + ptrReg) = value)
57 /*-----------------------------------------------------------------------------
59 *-----------------------------------------------------------------------------
61 static void SmiSetRegs (void)
64 * The content of the chipset register depends on the board (clocks,
67 const SMI_REGS *preg = board_get_regs ();
69 write32 (preg->Index, preg->Value);
71 * Insert a delay between
78 /*-----------------------------------------------------------------------------
80 *-----------------------------------------------------------------------------
82 void *video_hw_init (void)
86 memset (&sm501, 0, sizeof (GraphicDevice));
89 * Initialization of the access to the graphic chipset Retreive base
90 * address of the chipset (see board/RPXClassic/eccx.c)
92 if ((sm501.isaBase = board_video_init ()) == 0) {
96 if ((sm501.frameAdrs = board_video_get_fb ()) == 0) {
100 sm501.winSizeX = board_get_width ();
101 sm501.winSizeY = board_get_height ();
103 #if defined(CONFIG_VIDEO_SM501_8BPP)
104 sm501.gdfIndex = GDF__8BIT_INDEX;
105 sm501.gdfBytesPP = 1;
107 #elif defined(CONFIG_VIDEO_SM501_16BPP)
108 sm501.gdfIndex = GDF_16BIT_565RGB;
109 sm501.gdfBytesPP = 2;
111 #elif defined(CONFIG_VIDEO_SM501_32BPP)
112 sm501.gdfIndex = GDF_32BIT_X888RGB;
113 sm501.gdfBytesPP = 4;
115 #error Unsupported SM501 BPP
118 sm501.memSize = sm501.winSizeX * sm501.winSizeY * sm501.gdfBytesPP;
120 /* Load Smi registers */
123 /* (see board/RPXClassic/RPXClassic.c) */
124 board_validate_screen (sm501.isaBase);
126 /* Clear video memory */
128 vm = (unsigned int *)sm501.frameAdrs;
135 /*-----------------------------------------------------------------------------
137 *-----------------------------------------------------------------------------
140 unsigned int index, /* color number */
141 unsigned char r, /* red */
142 unsigned char g, /* green */
143 unsigned char b /* blue */