diff options
Diffstat (limited to 'platform/pc/console.c')
| -rw-r--r-- | platform/pc/console.c | 315 |
1 files changed, 0 insertions, 315 deletions
diff --git a/platform/pc/console.c b/platform/pc/console.c deleted file mode 100644 index cfc4a774..00000000 --- a/platform/pc/console.c +++ /dev/null @@ -1,315 +0,0 @@ -/* - * Copyright (c) 2009 Corey Tabaka - * Copyright (c) 2016 Travis Geiselbrecht - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files - * (the "Software"), to deal in the Software without restriction, - * including without limitation the rights to use, copy, modify, merge, - * publish, distribute, sublicense, and/or sell copies of the Software, - * and to permit persons to whom the Software is furnished to do so, - * subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. - * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY - * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ -#include <arch/x86.h> -#include <platform/pc.h> -#include <platform/console.h> -#include <string.h> -#include <lib/io.h> -#include <stdlib.h> -#include <stdio.h> -#include <stdarg.h> - -/* memory mapped framebuffer */ -#define FB (0xB8000U + KERNEL_ASPACE_BASE) - -/* CGA values */ -#define CURSOR_START 0x0A -#define CURSOR_END 0x0B -#define VIDEO_ADDRESS_MSB 0x0C -#define VIDEO_ADDRESS_LSB 0x0D -#define CURSOR_POS_MSB 0x0E -#define CURSOR_POS_LSB 0x0F - -/* curr settings */ -static unsigned char curr_x; -static unsigned char curr_y; -static unsigned char curr_start; -static unsigned char curr_end; -static unsigned char curr_attr = 0x7; - -/* video page buffer */ -#define VPAGE_SIZE 2048 -#define PAGE_MAX 8 - -static int active_page = 0; -static int visual_page = 0; - -static int curs_x[PAGE_MAX]; -static int curs_y[PAGE_MAX]; - -static struct { - int x1, y1, x2, y2; -} view_window = { - 0, 0, 79, 24 -}; - -void platform_init_console(void) -{ - curr_save(); - window(0, 0, 79, 24); - clear(); - place(0, 0); -} - -void set_visual_page(int page) -{ - unsigned short page_offset = page*VPAGE_SIZE; - visual_page = page; - - outp(CGA_INDEX_REG, VIDEO_ADDRESS_LSB); - outp(CGA_DATA_REG, page_offset & 0xFF); - outp(CGA_INDEX_REG, VIDEO_ADDRESS_MSB); - outp(CGA_DATA_REG, (page_offset >> 8) & 0xFF); -} - -void set_active_page(int page) -{ - curs_x[active_page] = curr_x; - curs_y[active_page] = curr_y; - curr_x = curs_x[page]; - curr_y = curs_y[page]; - active_page = page; -} - -int get_visual_page(void) -{ - return visual_page; -} - -int get_active_page(void) -{ - return active_page; -} - -void place(int x,int y) -{ - unsigned short cursor_word = x + y*80 + active_page*VPAGE_SIZE; - - /* - * program CGA using index reg, then data reg - */ - outp(CGA_INDEX_REG, CURSOR_POS_LSB); - outp(CGA_DATA_REG, cursor_word & 0xFF); - outp(CGA_INDEX_REG, CURSOR_POS_MSB); - outp(CGA_DATA_REG, (cursor_word >> 8) & 0xFF); - - curr_x = x; - curr_y = y; -} - -void cursor(int start,int end) -{ - outp(CGA_INDEX_REG, CURSOR_START); - outp(CGA_DATA_REG, start); - outp(CGA_INDEX_REG, CURSOR_END); - outp(CGA_DATA_REG, end); -} - -void curr_save(void) -{ -#if 0 - /* grab some info from the bios data area (these should be defined in memmap.h */ - curr_attr = *((unsigned char *)FB + 159); - curr_x = *((unsigned char *)0x00450); - curr_y = *((unsigned char *)0x00451); - curr_end = *((unsigned char *)0x00460); - curr_start = *((unsigned char *)0x00461); -#endif - active_page = visual_page = 0; -} - -void curr_restore(void) -{ -#if 0 - *((unsigned char *)0x00450) = curr_x; - *((unsigned char *)0x00451) = curr_y; -#endif - - place(curr_x, curr_y); - cursor(curr_start, curr_end); -} - -void window(int x1, int y1, int x2, int y2) -{ - view_window.x1 = x1; - view_window.y1 = y1; - view_window.x2 = x2; - view_window.y2 = y2; - - //place(x1, y1); -} - -void _clear(char c,char attr,int x1,int y1,int x2,int y2) -{ - register int i,j; - unsigned short w = attr; - - w <<= 8; - w |= c; - for (i = x1; i <= x2; i++) { - for (j = y1; j <= y2; j++) { - *((unsigned short *)(uintptr_t)(FB + 2*i+160*j + 2 * active_page * VPAGE_SIZE)) = w; - } - } - - place(x1,y1); - curr_y = y1; - curr_x = x1; -} - -void clear() -{ - _clear(' ', curr_attr, view_window.x1, view_window.y1, view_window.x2, - view_window.y2); -} - -void _scroll(char attr, int x1, int y1, int x2, int y2) -{ - register int x,y; - unsigned short xattr = attr << 8,w; - unsigned char *v = (unsigned char *)(uintptr_t)(FB + active_page*(2*VPAGE_SIZE)); - - for (y = y1+1; y <= y2; y++) { - for (x = x1; x <= x2; x++) { - w = *((unsigned short *) (v + 2*(y*80+x))); - *((unsigned short *)(v + 2*((y-1)*80+x))) = w; - } - } - - for (x = x1; x <= x2; x++) { - *((unsigned short *)(v + 2*((y-1)*80+x))) = xattr; - } -} - -void scroll(void) -{ - _scroll(curr_attr, view_window.x1, view_window.y1, view_window.x2, - view_window.y2); -} - -void cputc(char c) -{ - static unsigned short scan_x, x, y; - unsigned char *v = (unsigned char *)(uintptr_t)(FB + active_page*(2*VPAGE_SIZE)); - x = curr_x; - y = curr_y; - - switch (c) { - case '\t': - x += 8; - if (x >= view_window.x2+1) { - x = view_window.x1; - if (y == view_window.y2) { - scroll(); - } else { - y++; - } - } else { - scan_x = 0; - - while ((scan_x+8) < x) { - scan_x += 8; - } - - x = scan_x; - } - break; - - case '\r': - x = view_window.x1; - break; - - case '\n': - if (y == view_window.y2) { - scroll(); - } else { - y++; - } - break; - - case '\b': - x--; - *(v + 2*(x + y*80)) = ' '; - break; - - default: - *(v + 2*(x + y*80)) = c; - x++; - - if (x >= view_window.x2+1) { - x = view_window.x1; - if (y == view_window.y2) { - scroll(); - } else { - y++; - } - } - } - - place(x, y); -} - -void cputs(char *s) -{ - char c; - while (*s != '\0') { - c = *s++; - cputc(c); - } -} - -void puts_xy(int x,int y,char attr,char *s) -{ - unsigned char *v = (unsigned char *)(uintptr_t)(FB + (80*y+x)*2 + active_page*(2*VPAGE_SIZE)); - while (*s != 0) { - *v = *s; - s++; - v++; - *v = attr; - v++; - } -} - -void putc_xy(int x, int y, char attr, char c) -{ - unsigned char *v = (unsigned char *)(uintptr_t)(FB + (80*y+x)*2 + active_page*(2*VPAGE_SIZE)); - *v = c; - v++; - *v = attr; -} - -int printf_xy(int x, int y, char attr, char *fmt, ...) -{ - char cbuf[200]; - va_list parms; - int result; - - va_start(parms, fmt); - result = vsprintf(cbuf, fmt, parms); - va_end(parms); - - puts_xy(x, y, attr, cbuf); - - return result; -} |