| /* |
| * (C) Copyright 2002 |
| * Stäubli Faverges - <www.staubli.com> |
| * Pierre AUBERT p.aubert@staubli.com |
| * |
| * 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 |
| */ |
| /* Video support for Epson SED13806 chipset */ |
| |
| #include <common.h> |
| |
| #ifdef CONFIG_VIDEO_SED13806 |
| |
| #include <video_fb.h> |
| #include <sed13806.h> |
| |
| #define readByte(ptrReg) \ |
| *(volatile unsigned char *)(sed13806.isaBase + ptrReg) |
| |
| #define writeByte(ptrReg,value) \ |
| *(volatile unsigned char *)(sed13806.isaBase + ptrReg) = value |
| |
| #define writeWord(ptrReg,value) \ |
| (*(volatile unsigned short *)(sed13806.isaBase + ptrReg) = ((value >> 8 ) & 0xff) | ((value << 8) & 0xff00)) |
| |
| |
| GraphicDevice sed13806; |
| |
| /*----------------------------------------------------------------------------- |
| * EpsonSetRegs -- |
| *----------------------------------------------------------------------------- |
| */ |
| static void EpsonSetRegs (void) |
| { |
| /* the content of the chipset register depends on the board (clocks, ...)*/ |
| const S1D_REGS *preg = board_get_regs (); |
| while (preg -> Index) { |
| writeByte (preg -> Index, preg -> Value); |
| preg ++; |
| } |
| } |
| |
| /*----------------------------------------------------------------------------- |
| * video_hw_init -- |
| *----------------------------------------------------------------------------- |
| */ |
| void *video_hw_init (void) |
| { |
| unsigned int *vm, i; |
| |
| memset (&sed13806, 0, sizeof (GraphicDevice)); |
| |
| /* Initialization of the access to the graphic chipset |
| Retreive base address of the chipset |
| (see board/RPXClassic/eccx.c) */ |
| if ((sed13806.isaBase = board_video_init ()) == 0) { |
| return (NULL); |
| } |
| |
| sed13806.frameAdrs = sed13806.isaBase + FRAME_BUFFER_OFFSET; |
| sed13806.winSizeX = board_get_width (); |
| sed13806.winSizeY = board_get_height (); |
| |
| #if defined(CONFIG_VIDEO_SED13806_8BPP) |
| sed13806.gdfIndex = GDF__8BIT_INDEX; |
| sed13806.gdfBytesPP = 1; |
| |
| #elif defined(CONFIG_VIDEO_SED13806_16BPP) |
| sed13806.gdfIndex = GDF_16BIT_565RGB; |
| sed13806.gdfBytesPP = 2; |
| |
| #else |
| #error Unsupported SED13806 BPP |
| #endif |
| |
| sed13806.memSize = sed13806.winSizeX * sed13806.winSizeY * sed13806.gdfBytesPP; |
| |
| /* Load SED registers */ |
| EpsonSetRegs (); |
| |
| /* (see board/RPXClassic/RPXClassic.c) */ |
| board_validate_screen (sed13806.isaBase); |
| |
| /* Clear video memory */ |
| i = sed13806.memSize/4; |
| vm = (unsigned int *)sed13806.frameAdrs; |
| while(i--) |
| *vm++ = 0; |
| |
| |
| return (&sed13806); |
| } |
| /*----------------------------------------------------------------------------- |
| * Epson_wait_idle -- Wait for hardware to become idle |
| *----------------------------------------------------------------------------- |
| */ |
| static void Epson_wait_idle (void) |
| { |
| while (readByte (BLT_CTRL0) & 0x80); |
| |
| /* Read a word in the BitBLT memory area to shutdown the BitBLT engine */ |
| *(volatile unsigned short *)(sed13806.isaBase + BLT_REG); |
| } |
| |
| /*----------------------------------------------------------------------------- |
| * video_hw_bitblt -- |
| *----------------------------------------------------------------------------- |
| */ |
| void video_hw_bitblt ( |
| unsigned int bpp, /* bytes per pixel */ |
| unsigned int src_x, /* source pos x */ |
| unsigned int src_y, /* source pos y */ |
| unsigned int dst_x, /* dest pos x */ |
| unsigned int dst_y, /* dest pos y */ |
| unsigned int dim_x, /* frame width */ |
| unsigned int dim_y /* frame height */ |
| ) |
| { |
| register GraphicDevice *pGD = (GraphicDevice *)&sed13806; |
| unsigned long srcAddr, dstAddr; |
| unsigned int stride = bpp * pGD -> winSizeX; |
| |
| srcAddr = (src_y * stride) + (src_x * bpp); |
| dstAddr = (dst_y * stride) + (dst_x * bpp); |
| |
| Epson_wait_idle (); |
| |
| writeByte(BLT_ROP,0x0C); /* source */ |
| writeByte(BLT_OP,0x02);/* move blit in positive direction with ROP */ |
| writeWord(BLT_MEM_OFF0, stride / 2); |
| if (pGD -> gdfIndex == GDF__8BIT_INDEX) { |
| writeByte(BLT_CTRL1,0x00); |
| } |
| else { |
| writeByte(BLT_CTRL1,0x01); |
| } |
| |
| writeWord(BLT_WIDTH0,(dim_x - 1)); |
| writeWord(BLT_HEIGHT0,(dim_y - 1)); |
| |
| /* set up blit registers */ |
| writeByte(BLT_SRC_ADDR0,srcAddr); |
| writeByte(BLT_SRC_ADDR1,srcAddr>>8); |
| writeByte(BLT_SRC_ADDR2,srcAddr>>16); |
| |
| writeByte(BLT_DST_ADDR0,dstAddr); |
| writeByte(BLT_DST_ADDR1,dstAddr>>8); |
| writeByte(BLT_DST_ADDR2,dstAddr>>16); |
| |
| /* Engage the blt engine */ |
| /* rectangular region for src and dst */ |
| writeByte(BLT_CTRL0,0x80); |
| |
| /* wait untill current blits finished */ |
| Epson_wait_idle (); |
| } |
| /*----------------------------------------------------------------------------- |
| * video_hw_rectfill -- |
| *----------------------------------------------------------------------------- |
| */ |
| void video_hw_rectfill ( |
| unsigned int bpp, /* bytes per pixel */ |
| unsigned int dst_x, /* dest pos x */ |
| unsigned int dst_y, /* dest pos y */ |
| unsigned int dim_x, /* frame width */ |
| unsigned int dim_y, /* frame height */ |
| unsigned int color /* fill color */ |
| ) |
| { |
| register GraphicDevice *pGD = (GraphicDevice *)&sed13806; |
| unsigned long dstAddr; |
| unsigned int stride = bpp * pGD -> winSizeX; |
| |
| dstAddr = (dst_y * stride) + (dst_x * bpp); |
| |
| Epson_wait_idle (); |
| |
| /* set up blit registers */ |
| writeByte(BLT_DST_ADDR0,dstAddr); |
| writeByte(BLT_DST_ADDR1,dstAddr>>8); |
| writeByte(BLT_DST_ADDR2,dstAddr>>16); |
| |
| writeWord(BLT_WIDTH0,(dim_x - 1)); |
| writeWord(BLT_HEIGHT0,(dim_y - 1)); |
| writeWord(BLT_FGCOLOR0,color); |
| |
| writeByte(BLT_OP,0x0C); /* solid fill */ |
| writeWord(BLT_MEM_OFF0,stride / 2); |
| |
| if (pGD -> gdfIndex == GDF__8BIT_INDEX) { |
| writeByte(BLT_CTRL1,0x00); |
| } |
| else { |
| writeByte(BLT_CTRL1,0x01); |
| } |
| |
| /* Engage the blt engine */ |
| /* rectangular region for src and dst */ |
| writeByte(BLT_CTRL0,0x80); |
| |
| /* wait untill current blits finished */ |
| Epson_wait_idle (); |
| } |
| |
| /*----------------------------------------------------------------------------- |
| * video_set_lut -- |
| *----------------------------------------------------------------------------- |
| */ |
| void video_set_lut ( |
| unsigned int index, /* color number */ |
| unsigned char r, /* red */ |
| unsigned char g, /* green */ |
| unsigned char b /* blue */ |
| ) |
| { |
| writeByte(REG_LUT_ADDR, index ); |
| writeByte(REG_LUT_DATA, r); |
| writeByte(REG_LUT_DATA, g); |
| writeByte(REG_LUT_DATA, b); |
| } |
| #ifdef CONFIG_VIDEO_HW_CURSOR |
| /*----------------------------------------------------------------------------- |
| * video_set_hw_cursor -- |
| *----------------------------------------------------------------------------- |
| */ |
| void video_set_hw_cursor (int x, int y) |
| { |
| writeByte (LCD_CURSOR_XL, (x & 0xff)); |
| writeByte (LCD_CURSOR_XM, (x >> 8)); |
| writeByte (LCD_CURSOR_YL, (y & 0xff)); |
| writeByte (LCD_CURSOR_YM, (y >> 8)); |
| } |
| |
| /*----------------------------------------------------------------------------- |
| * video_init_hw_cursor -- |
| *----------------------------------------------------------------------------- |
| */ |
| void video_init_hw_cursor (int font_width, int font_height) |
| { |
| volatile unsigned char *ptr; |
| unsigned char pattern; |
| int i; |
| |
| |
| /* Init cursor content |
| Cursor size is 64x64 pixels |
| Start of the cursor memory depends on panel type (dual panel ...) */ |
| if ((i = readByte (LCD_CURSOR_START)) == 0) { |
| ptr = (unsigned char *)(sed13806.frameAdrs + DEFAULT_VIDEO_MEMORY_SIZE - HWCURSORSIZE); |
| } |
| else { |
| ptr = (unsigned char *)(sed13806.frameAdrs + DEFAULT_VIDEO_MEMORY_SIZE - (i * 8192)); |
| } |
| |
| /* Fill the first line and the first empty line after cursor */ |
| for (i = 0, pattern = 0; i < 64; i++) { |
| if (i < font_width) { |
| /* Invert background */ |
| pattern |= 0x3; |
| |
| } |
| else { |
| /* Background */ |
| pattern |= 0x2; |
| } |
| if ((i & 3) == 3) { |
| *ptr = pattern; |
| *(ptr + font_height * 16) = 0xaa; |
| ptr ++; |
| pattern = 0; |
| } |
| pattern <<= 2; |
| } |
| |
| /* Duplicate this line */ |
| for (i = 1; i < font_height; i++) { |
| memcpy ((void *)ptr, (void *)(ptr - 16), 16); |
| ptr += 16; |
| } |
| |
| for (; i < 64; i++) { |
| memcpy ((void *)(ptr + 16), (void *)ptr, 16); |
| ptr += 16; |
| } |
| |
| /* Select cursor mode */ |
| writeByte (LCD_CURSOR_CNTL, 1); |
| } |
| #endif |
| #endif |
