diff options
author | wdenk <wdenk> | 2002-12-03 21:28:10 (GMT) |
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committer | wdenk <wdenk> | 2002-12-03 21:28:10 (GMT) |
commit | a6c7ad2f65afaa717ba19cbf9d8d138b5f10ccf9 (patch) | |
tree | 45512cd627310dd322ea38fc9f63109560276475 /drivers/sed13806.c | |
parent | ea909b7604306a400ee3abf57e2fa7b2dde5dde1 (diff) | |
download | u-boot-a6c7ad2f65afaa717ba19cbf9d8d138b5f10ccf9.tar.xz |
* Fix startup problems with VFD display on TRAB
* Patch by Pierre Aubert, 20 Nov 2002
Add driver for Epson SED13806 graphic controller.
Add support for BMP logos in cfb_console driver.
Diffstat (limited to 'drivers/sed13806.c')
-rw-r--r-- | drivers/sed13806.c | 306 |
1 files changed, 306 insertions, 0 deletions
diff --git a/drivers/sed13806.c b/drivers/sed13806.c new file mode 100644 index 0000000..55fceef --- /dev/null +++ b/drivers/sed13806.c @@ -0,0 +1,306 @@ +/* + * (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 |