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Diffstat (limited to 'board/mpl/common/video.c')
| -rw-r--r-- | board/mpl/common/video.c | 760 |
1 files changed, 760 insertions, 0 deletions
diff --git a/board/mpl/common/video.c b/board/mpl/common/video.c new file mode 100644 index 0000000000..d92804aeb7 --- /dev/null +++ b/board/mpl/common/video.c @@ -0,0 +1,760 @@ +/* + * (C) Copyright 2001 + * Denis Peter, MPL AG Switzerland + * + * 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 + * + * Note: Parts of these software are imported from + * - UBL, The Universal Talkware Boot Loader + * Copyright (C) 2000 Universal Talkware Inc. + * - Linux + * + * + */ + +#include <common.h> + +#ifdef CONFIG_VIDEO + +#include <command.h> +#include <asm/processor.h> +#include <devices.h> +#include "video.h" +#include <pci.h> +#include "vga_table.h" + + + +#ifdef CONFIG_VIDEO_CT69000 +#define VIDEO_VEND_ID 0x102C +#define VIDEO_DEV_ID 0x00C0 +#else +#error CONFIG_VIDEO_CT69000 must be defined +#endif + +/* + * Routine for resent board info to video + * resides in pip405.c + */ +extern void video_write_board_info(void); + +#undef VGA_DEBUG + +#ifdef VGA_DEBUG +#define PRINTF(fmt,args...) printf (fmt ,##args) +#else +#define PRINTF(fmt,args...) +#endif + +#define VGA_MAXROWS 25 +#define VGA_MAXCOLS 80 + +#define CRTC_CURSH 14 /* cursor high pos */ +#define CRTC_CURSL 15 /* cursor low pos */ + +/* description of the hardware layout */ + +#define ATTRI_INDEX CFG_ISA_IO_BASE_ADDRESS | 0x3c0 /* Index and Data write port of the attribute Registers */ +#define ATTRI_DATA CFG_ISA_IO_BASE_ADDRESS | 0x3c1 /* Data port of the attribute Registers */ +#define STATUS_REG0 CFG_ISA_IO_BASE_ADDRESS | 0x3c2 /* Status Register 0 (read only) */ +#define MSR_REG_W CFG_ISA_IO_BASE_ADDRESS | 0x3c2 /* Misc. Output Register (write only) */ +#define SEQ_INDEX CFG_ISA_IO_BASE_ADDRESS | 0x3c4 /* Index port of the Sequencer Controller */ +#define SEQ_DATA CFG_ISA_IO_BASE_ADDRESS | 0x3c5 /* Data port of the Sequencer Controller */ +#define COL_PAL_MASK CFG_ISA_IO_BASE_ADDRESS | 0x3c6 /* Color Palette Mask */ +#define COL_PAL_STAT CFG_ISA_IO_BASE_ADDRESS | 0x3c7 /* Color Palette Status (read only) */ +#define COL_PAL_IND_R CFG_ISA_IO_BASE_ADDRESS | 0x3c7 /* Color Palette Read Mode Index (write only) */ +#define COL_PAL_IND_W CFG_ISA_IO_BASE_ADDRESS | 0x3c8 /* Color Palette Write Mode Index */ +#define COL_PAL_DATA CFG_ISA_IO_BASE_ADDRESS | 0x3c9 /* Color Palette Data Port */ +#define FCR_REG_R CFG_ISA_IO_BASE_ADDRESS | 0x3ca /* Feature Control Register (read only) */ +#define MSR_REG_R CFG_ISA_IO_BASE_ADDRESS | 0x3cc /* Misc. Output Register (read only) */ +#define GR_INDEX CFG_ISA_IO_BASE_ADDRESS | 0x3ce /* Index port of the Graphic Controller Registers */ +#define GR_DATA CFG_ISA_IO_BASE_ADDRESS | 0x3cf /* Data port of the Graphic Controller Registers */ +#define FP_INDEX CFG_ISA_IO_BASE_ADDRESS | 0x3d0 /* Index port of the Flat panel Registers */ +#define FP_DATA CFG_ISA_IO_BASE_ADDRESS | 0x3d1 /* Data port of the Flat panel Registers */ +#define MR_INDEX CFG_ISA_IO_BASE_ADDRESS | 0x3d2 /* Index Port of the Multimedia Extension */ +#define MR_DATA CFG_ISA_IO_BASE_ADDRESS | 0x3d3 /* Data Port of the Multimedia Extension */ +#define CRT_INDEX CFG_ISA_IO_BASE_ADDRESS | 0x3d4 /* Index port of the CRT Controller */ +#define CRT_DATA CFG_ISA_IO_BASE_ADDRESS | 0x3d5 /* Data port of the CRT Controller */ +#define XREG_INDEX CFG_ISA_IO_BASE_ADDRESS | 0x3d6 /* Extended Register index */ +#define XREG_DATA CFG_ISA_IO_BASE_ADDRESS | 0x3d7 /* Extended Register data */ +#define STATUS_REG1 CFG_ISA_IO_BASE_ADDRESS | 0x3da /* Input Status Register 1 (read only) */ +#define FCR_REG_W CFG_ISA_IO_BASE_ADDRESS | 0x3da /* Feature Control Register (write only) */ + + +static unsigned char * video_fb; /* Frame buffer */ + +/* current hardware state */ + +static int video_row; +static int video_col; +static unsigned char video_attr; + +static unsigned int font_base_addr; +/********************************************************************** + * some forward declerations... + */ +int video_init(int busdevfunc); +void vga_set_attrib(void); +void vga_set_crt(void); +void vga_set_dac(void); +void vga_set_gr(void); +void vga_set_seq(void); +void vga_set_xreg(void); +void vga_write_sr(unsigned char reg,unsigned char val); +void vga_write_gr(unsigned char reg,unsigned char val); +void vga_write_cr(unsigned char reg,unsigned char val); +void vga_set_font(void); + +/*************************************************************************** + * Init VGA Device + */ + +int drv_video_init (void) +{ + int error, devices = 1 ; + device_t vgadev ; + int busdevfunc; + + busdevfunc=pci_find_device(VIDEO_VEND_ID,VIDEO_DEV_ID,0); /* get PCI Device ID */ + if(busdevfunc==-1) { +#ifdef CONFIG_VIDEO_ONBOARD + printf("Error VGA Controller (%04X,%04X) not found\n",VIDEO_VEND_ID,VIDEO_DEV_ID); +#endif + return -1; + } + video_init(busdevfunc); + video_write_board_info(); + memset (&vgadev, 0, sizeof(vgadev)); + + strcpy(vgadev.name, "vga"); + vgadev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_SYSTEM; + vgadev.putc = video_putc; + vgadev.puts = video_puts; + vgadev.getc = NULL; + vgadev.tstc = NULL; + error = device_register (&vgadev); + + return (error == 0) ? devices : error ; +} + + +/*********************************************************** + * VGA Initializing + */ + +int video_init(int busdevfunc) +{ + pci_read_config_dword(busdevfunc, PCI_BASE_ADDRESS_0, &font_base_addr); + + video_fb = (char*)font_base_addr; /* we look into the big linaer memory area */ + + /* set the extended Registers */ + vga_set_xreg(); + + /* set IO Addresses to 0x3Dx (color mode ) */ + out8(MSR_REG_W,0x01); + + /* Feature Control Register: + Bits 7-4 Reserved = 0 + Bit 3 Vertical Sync select = 1 = Enabled + Bits 2-0 Reserved = 010 = as read from memory. + */ + out8(FCR_REG_W,0x02); + + + /* Miscelaneous output Register: + Bits 7-6 (num lines) = 01 = VGA 400 lines, + Bit 5 (Odd/Even Page) = 1 = Sleect high page of memory, + Bit 4 reserved = 0, + Bits 3-2 (Clocl Select) = 01 = 28.322Mhz + Bit 1 = Display Ram Enable = 1 = Enable processor access. + Bit 0 = Io Address Select = 1 = Color Graphics Enulation. + */ + out8(MSR_REG_W,0x67); + /* set the palette */ + vga_set_dac(); + /* set the attributes (before we bring up the engine + then we dont have to wait for refresh). + */ + vga_set_attrib(); + + /* set the crontroller register. */ + vga_set_crt(); + + vga_write_sr(0x00,0x01); /* synchronous reset */ + vga_write_sr(0x01,0x00); /* clocking mode */ + vga_write_sr(0x02,0x03); /* write to map 0, 1 */ + vga_write_sr(0x03,0x00); /* select character map 0 */ + vga_write_sr(0x04,0x03); /* even-odd addressing */ + vga_write_sr(0x00,0x03); /* clear synchronous reset */ + + vga_set_seq(); /* Set the extended sr's. */ + + vga_set_gr(); /* Set the graphic registers. */ + + /* load the font */ + vga_set_font(); + + /* initialize the rol/col counts and the text attribute. */ + video_row=0; + video_col=0; + video_attr = VGA_ATTR_CLR_WHT; + + /* Clear the video ram */ + video_clear(); + + return 1; +} + +void vga_set_font(void) +{ + int i,j; + char *fontmap; + fontmap = (char *)font_base_addr; + + vga_write_sr(0x00,0x01); /* synchronous reset */ + vga_write_sr(0x04,0x06); /* sequential addressing */ + vga_write_sr(0x02,0x04); /* write to map 2 */ + vga_write_sr(0x00,0x03); /* clear synchronous reset */ + + vga_write_gr(0x04,0x02); /* select map 2 */ + vga_write_gr(0x05,0x00); /* disable odd-even addressing */ + vga_write_gr(0x06,0x00); /* map start at 0xa0000 */ + + for(i=0;i<0x100;i++) { + for(j=0;j<0x10;j++) { + *((char *)fontmap+i*32+j)=(char)fontdata_8x16[i*16+j]; + } + } + vga_write_sr(0x00,0x01); /* synchronous reset */ + vga_write_sr(0x02,0x03); /* write to map 0 and 1 */ + vga_write_sr(0x04,0x03); /* odd-even addressing */ + vga_write_sr(0x03,0x00); /* Character map 0 & 1 */ + vga_write_sr(0x00,0x03); /* clear synchronous reset */ + + vga_write_gr(0x04,0x00); /* select map 0 for CPU */ + vga_write_gr(0x05,0x10); /* enable odd-even addressing */ + vga_write_gr(0x06,0x0E); /* map start at 0xb8000 */ +} + + +/* since we are BIG endian, swap attributes and char */ +unsigned short vga_swap_short(unsigned short val) +{ + unsigned short swapped; + swapped = ((val & 0xff)<<8) | ((val & 0xff00)>>8); + return swapped; +} + +/**************************************************** + * Routines usable Outside world + */ + +/* scolls the text up row rows */ +void video_scroll(int row) +{ + unsigned short clear = ((unsigned short)video_attr << 8) | (' '); + unsigned short* addr16 = &((unsigned short *)video_fb)[(VGA_MAXROWS-row)*VGA_MAXCOLS]; + int i; + + clear=vga_swap_short(clear); + memcpy(video_fb, video_fb+row*(VGA_MAXCOLS*2), (VGA_MAXROWS-row)*(VGA_MAXCOLS*2)); + for (i = 0 ; i < row * VGA_MAXCOLS ; i++) + addr16[i] = clear; + video_row-=row; + video_col=0; +} + + +unsigned long video_cursor(int col, int row) +{ + unsigned short off = row * VGA_MAXCOLS + col ; + unsigned long saved = (video_col << 16) | (video_row & 0xFFFF); + video_col = col; + video_row = row; + + vga_write_cr(CRTC_CURSH,(unsigned char)((off & 0xff00)>>8)); /* Cursor pos. high */ + vga_write_cr(CRTC_CURSL,(unsigned char)(off & 0xff)); /* Cursor pos. low */ + return saved; +} + +void video_set_lxy(unsigned long lxy) +{ + int col = (lxy >> 16) & 0xFFFF; + int row = lxy & 0xFFFF; + video_cursor(col,row); +} + +unsigned long video_get_lxy(void) +{ + return (video_col << 16) | (video_row & 0xFFFF); +} + +void video_clear(void) +{ + int i; + unsigned short clear = ((unsigned short)video_attr << 8) | (' '); + unsigned short * addr16 = (unsigned short * )video_fb; + clear=vga_swap_short(clear); + video_row = video_col = 0; + for (i = 0 ; i < 2000 ; i++) { + addr16[i] = clear; + } +} + +void video_copy(unsigned short *buffer) +{ + int i; + unsigned short * addr16 = (unsigned short * )video_fb; + for (i = 0 ; i < 2000 ; i++) { + buffer[i] = addr16[i]; + } +} + +void video_write(unsigned short *buffer) +{ + int i; + unsigned short * addr16 = (unsigned short *)video_fb; + for (i = 0 ; i < 2000 ; i++) { + addr16[i] = buffer[i]; + } +} + +void video_putc(char ch) +{ + char* addr; +#if 0 + char buf[48]; + char buf1[16]; + static int i=0; + + sprintf(buf1,"%02X ",ch); + serial_puts(buf1); + buf[i++]=((ch>=0x20)&&(ch<=0x7f)) ? ch : '.'; + if(i>=16) { + buf[i++]='\n'; + buf[i]='\0'; + i=0; + serial_puts(" "); + serial_puts(buf); + } +#endif + switch (ch) { + case '\n': + video_col=0; + video_row++; + break; + case '\r': + video_col=0; + break; + case '\t': + video_col += 8 - video_col % 8; + break; + case '\a': +/* beep(); */ + break; + case '\b': + if(video_col) + video_col--; + else + return; + break; + default: + addr = video_fb + 2 * video_row * 80 + 2 * video_col; + + *((char *)addr+1) = (char) video_attr; + *((char *)addr) = (char) ch; + video_col++; + if (video_col > (VGA_MAXCOLS-1)) { + video_row++; + video_col=0; + } + } + + /* If we're on the bottom of the secreen, wrap one row */ + if (video_row > (VGA_MAXROWS-1)) + video_scroll(1); + video_cursor(video_col, video_row); +} + + +unsigned char video_set_attr(unsigned char attr) +{ + unsigned char saved_attr = video_attr; + video_attr = attr; + return saved_attr; +} + +unsigned char video_set_attr_xy(unsigned char attr, int x, int y) +{ + unsigned char *addr = video_fb + (x * 80 + y) * 2 + 1; + unsigned char saved_attr = *addr; + *addr = attr; + return saved_attr; +} + +/* put char at xy */ +void video_putc_xy(char ch, int x, int y) +{ + video_col = x; + video_row = y; + video_putc(ch); +} + +/* put char at xy relative to the position */ +void video_putc_rxy(char ch, int x, int y) +{ + video_col += x; + video_row += y; + video_putc(ch); +} + +/* put char with attribute at xy */ +void video_putc_axy(char ch, char attr, int x, int y) +{ + unsigned char saved_attr = video_set_attr(attr); + video_col = x; + video_row = y; + video_putc(ch); + video_set_attr(saved_attr); +} + +void video_puts(const char *s) +{ + while(*s) { + video_putc(*s); + s++; + } +} + +void video_puts_a(const char *s, char attr) +{ + unsigned char saved_attr = video_set_attr(attr); + video_puts(s); + video_set_attr(saved_attr); +} + +void video_puts_xy(const char *s, int x, int y) +{ + video_cursor(x,y); + video_puts(s); +} + +void video_puts_axy(const char *s, char attr, int x, int y) +{ + unsigned char saved_attr = video_set_attr(attr); + video_puts_xy(s, x, y); + video_set_attr(saved_attr); +} + +void video_wipe_ca_area(unsigned char ch, char attr, int x, int y, int w, int h) +{ + int r, c; + /* better to do this as word writes */ + unsigned short * addr16 = (unsigned short *)video_fb + (y * 80 + x); + unsigned short charattr = (unsigned short)ch << 8 | attr; + charattr=vga_swap_short(charattr); + for (r = 0 ; r < h ; r++, addr16 += 80) { + for (c = 0 ; c < w ; c++) { + addr16[c] = charattr; + } + } +} + +void video_wipe_a_area(unsigned char attr, int x, int y, int w, int h) +{ + int r, c; + /* better to do this as word writes */ + unsigned short * addr16 = (unsigned short *)video_fb + (y * 80 + x); + for (r = 0 ; r < h ; r++, addr16 += 80) { + for (c = 0 ; c < w ; c++) { + ((char*)addr16)[c*2+1] = attr; + } + } +} + +void video_wipe_c_area(unsigned char ch, int x, int y, int w, int h) +{ + int r, c; + /* better to do this as word writes */ + unsigned short * addr16 = (unsigned short *)video_fb + (y * 80 + x); + for (r = 0 ; r < h ; r++, addr16 += 80) { + for (c = 0 ; c < w ; c++) { + ((char*)addr16)[c*2] = ch; + } + } +} + + +/* +tl t tr +l l +bl b br +*/ +typedef struct { + unsigned char tl; /* top left corner */ + unsigned char t; /* top edge */ + unsigned char tr; /* top right corner */ + unsigned char l; /* left edge */ + unsigned char r; /* right edge */ + unsigned char bl; /* bottom left corner */ + unsigned char b; /* bottom edge */ + unsigned char br; /* bottom right corner */ +} box_chars_t; + +box_chars_t sbox_chars = { + 0xDA, 0xC4, 0xBF, + 0xB3, 0xB3, + 0xC0, 0xC4, 0xD9 +}; + +box_chars_t dbox_chars = { + 0xC9, 0xCD, 0xBB, + 0xBA, 0xBA, + 0xC8, 0xCD, 0xBC +}; + +static char cmap[] = "0123456789ABCDEF"; +void video_putchex(char c) +{ + video_putc(cmap[(c >> 4 ) & 0xF]); + video_putc(cmap[c & 0xF]); +} + +void video_putchexl(char c) +{ + video_putc(cmap[c & 0xF]); +} + +void video_putchexh(char c) +{ + video_putc(cmap[(c >> 4) & 0xF]); +} + +#define VGA_CELL_CA(a,c) (((unsigned short)c<<8)|a) /* for BIG endians */ + +void video_gbox_area(box_chars_t *box_chars_p, int x, int y, int w, int h) +{ + int r, c; + /* better to do this as word writes */ + unsigned short* addr16 = (unsigned short *)video_fb + (y * VGA_MAXCOLS + x); + for (r = 0 ; r < h ; r++, addr16 += VGA_MAXCOLS) { + if (r == 0) { + addr16[0] = VGA_CELL_CA(video_attr, box_chars_p->tl); + addr16[w-1] = VGA_CELL_CA(video_attr, box_chars_p->tr); + for (c = 1 ; c < w - 1 ; c++) + addr16[c] = VGA_CELL_CA(video_attr, box_chars_p->t); + } else if (r == h - 1) { + addr16[0] = VGA_CELL_CA(video_attr, box_chars_p->bl); + addr16[w-1] = VGA_CELL_CA(video_attr, box_chars_p->br); + for (c = 1 ; c < w - 1 ; c++) + addr16[c] = VGA_CELL_CA(video_attr, box_chars_p->b); + } else { + addr16[0] = VGA_CELL_CA(video_attr, box_chars_p->l); + addr16[w-1] = VGA_CELL_CA(video_attr, box_chars_p->r); + } + } +} + +/* Writes a box on the screen */ +void video_box_area(int x, int y, int w, int h) { + video_gbox_area(&sbox_chars, x, y, w, h); +} +/*writes a box with double lines on the screen */ +void video_dbox_area(int x, int y, int w, int h) { + video_gbox_area(&dbox_chars, x, y, w, h); +} + +/* routines to set the VGA registers */ + +/* set attributes */ +void vga_set_attrib(void) +{ + int i; + unsigned char status; + + status=in8(STATUS_REG1); + i=0; + + while(attr[i].reg!=0xFF) { + out8(ATTRI_INDEX,attr[i].reg); + out8(ATTRI_INDEX,attr[i].val); /* Attribute uses index for index and data */ + i++; + } + out8(ATTRI_INDEX,0x20); /* unblank the screen */ +} + +/* set CRT Controller Registers */ +void vga_set_crt(void) +{ + int i; + i=0; + while(crtc[i].reg!=0xFF) { + out8(CRT_INDEX,crtc[i].reg); + out8(CRT_DATA,crtc[i].val); + i++; + } +} +/* Set Palette Registers (DAC) */ +void vga_set_dac(void) +{ + int i; + for(i=0;i<256;i++) { + out8(COL_PAL_IND_W,(unsigned char)i); + out8(COL_PAL_DATA,dac[i][0]); /* red */ + out8(COL_PAL_DATA,dac[i][1]); /* green */ + out8(COL_PAL_DATA,dac[i][2]); /* blue */ + } + out8(COL_PAL_MASK,0xff); /* set mask */ +} +/* set Graphic Controller Register */ +void vga_set_gr(void) +{ + int i; + i=0; + while(grmr[i].reg!=0xFF) { + out8(GR_INDEX,grmr[i].reg); + out8(GR_DATA,grmr[i].val); + i++; + } +} + +/* Set Sequencer Registers */ +void vga_set_seq(void) +{ + int i; + i=0; + while(seq[i].reg!=0xFF) { + out8(SEQ_INDEX,seq[i].reg); + out8(SEQ_DATA,seq[i].val); + i++; + } +} + + +/* Set Extension Registers */ +void vga_set_xreg(void) +{ + int i; + i=0; + while(xreg[i].reg!=0xFF) { + out8(XREG_INDEX,xreg[i].reg); + out8(XREG_DATA,xreg[i].val); + i++; + } +} + +/************************************************************ + * some helping routines + */ + +void vga_write_sr(unsigned char reg,unsigned char val) +{ + out8(SEQ_INDEX,reg); + out8(SEQ_DATA,val); +} + + +void vga_write_gr(unsigned char reg,unsigned char val) +{ + out8(GR_INDEX,reg); + out8(GR_DATA,val); +} + +void vga_write_cr(unsigned char reg,unsigned char val) +{ + out8(CRT_INDEX,reg); + out8(CRT_DATA,val); +} + + +#if 0 +void video_dump_reg(void) +{ + /* first dump attributes */ + int i; + unsigned char status; + + + printf("Extended Regs:\n"); + i=0; + while(xreg[i].reg!=0xFF) { + out8(XREG_INDEX,xreg[i].reg); + status=in8(XREG_DATA); + printf("XR%02X is %02X, should be %02X\n",xreg[i].reg,status,xreg[i].val); + i++; + } + printf("Sequencer Regs:\n"); + i=0; + while(seq[i].reg!=0xFF) { + out8(SEQ_INDEX,seq[i].reg); + status=in8(SEQ_DATA); + printf("SR%02X is %02X, should be %02X\n",seq[i].reg,status,seq[i].val); + i++; + } + printf("Graphic Regs:\n"); + i=0; + while(grmr[i].reg!=0xFF) { + out8(GR_INDEX,grmr[i].reg); + status=in8(GR_DATA); + printf("GR%02X is %02X, should be %02X\n",grmr[i].reg,status,grmr[i].val); + i++; + } + printf("CRT Regs:\n"); + i=0; + while(crtc[i].reg!=0xFF) { + out8(CRT_INDEX,crtc[i].reg); + status=in8(CRT_DATA); + printf("CR%02X is %02X, should be %02X\n",crtc[i].reg,status,crtc[i].val); + i++; + } + printf("Attributes:\n"); + status=in8(STATUS_REG1); + i=0; + while(attr[i].reg!=0xFF) { + out8(ATTRI_INDEX,attr[i].reg); + status=in8(ATTRI_DATA); + out8(ATTRI_INDEX,attr[i].val); /* Attribute uses index for index and data */ + printf("AR%02X is %02X, should be %02X\n",attr[i].reg,status,attr[i].val); + i++; + } +} +#endif + +#endif /* CONFIG_VIDEO */ + + + + + + + + + + + + + + + + + + + + |
