--- /dev/null
+/*
+ * This file is part of the libpayload project.
+ *
+ * Copyright (C) 2008 Advanced Micro Devices, Inc.
+ * Copyright (C) 2010 coresystems GmbH
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <libpayload.h>
+#include <coreboot_tables.h>
+#include <pci.h>
+#include <video_console.h>
+#include <arch/msr.h>
+#include "font8x16.h"
+
+struct video_console coreboot_video_console;
+
+static unsigned int cursor_x = 0, cursor_y = 0, cursor_en = 0;
+
+/* color definitions for the 16 standard colors */
+
+#define VGA_COLOR_DEFAULT 7
+static const u32 vga_colors[] = {
+ // BLUE | GREEN | RED
+ (0x00 << 16) | (0x00 << 8) | 0x00,
+ (0xAA << 16) | (0x00 << 8) | 0x00,
+ (0x00 << 16) | (0xAA << 8) | 0x00,
+ (0xAA << 16) | (0x55 << 8) | 0x00,
+ (0x00 << 16) | (0x00 << 8) | 0xAA,
+ (0xAA << 16) | (0x00 << 8) | 0xAA,
+ (0x00 << 16) | (0xAA << 8) | 0xAA,
+ (0xAA << 16) | (0xAA << 8) | 0xAA,
+ (0x55 << 16) | (0x55 << 8) | 0x55,
+ (0xFF << 16) | (0x55 << 8) | 0x55,
+ (0x55 << 16) | (0xFF << 8) | 0x55,
+ (0xFF << 16) | (0xFF << 8) | 0x55,
+ (0x55 << 16) | (0x55 << 8) | 0xFF,
+ (0xFF << 16) | (0x55 << 8) | 0xFF,
+ (0x55 << 16) | (0xFF << 8) | 0xFF,
+ (0xFF << 16) | (0xFF << 8) | 0xFF,
+};
+
+/* Addresses for the various components */
+static unsigned long fbinfo;
+static unsigned long fbaddr;
+static unsigned long chars;
+
+#define FI ((struct cb_framebuffer *) phys_to_virt(fbinfo))
+#define FB ((unsigned char *) phys_to_virt(fbaddr))
+#define CHARS ((unsigned short *) phys_to_virt(chars))
+
+static void corebootfb_scroll_up(void)
+{
+ unsigned char *dst = FB;
+ unsigned char *src = FB + (FI->bytes_per_line * FONT_HEIGHT);
+ int y;
+
+ /* Scroll all lines up */
+ for(y = 0; y < FI->y_resolution - FONT_HEIGHT; y++) {
+ memcpy(dst, src, FI->x_resolution * (FI->bits_per_pixel >> 3));
+
+ dst += FI->bytes_per_line;
+ src += FI->bytes_per_line;
+ }
+
+ /* Erase last line */
+ dst = FB + (FI->y_resolution - FONT_HEIGHT) * FI->bytes_per_line;
+
+ for(; y < FI->y_resolution; y++) {
+ memset(dst, 0, FI->x_resolution * (FI->bits_per_pixel >> 3));
+ dst += FI->bytes_per_line;
+ }
+
+ /* And update the char buffer */
+ dst = (unsigned char *) CHARS;
+ src = (unsigned char *) (CHARS + coreboot_video_console.columns);
+ memcpy(dst, src, coreboot_video_console.columns *
+ (coreboot_video_console.rows - 1) * 2);
+ int column;
+ for (column = 0; column < coreboot_video_console.columns; column++)
+ CHARS[(coreboot_video_console.rows - 1) * coreboot_video_console.columns + column] = (VGA_COLOR_DEFAULT << 8);
+
+ cursor_y--;
+}
+
+static void corebootfb_clear(void)
+{
+ int row, column;
+ unsigned char *ptr = FB;
+
+ /* Clear the screen */
+ for(row = 0; row < FI->y_resolution; row++) {
+ memset(ptr, 0, FI->x_resolution * (FI->bits_per_pixel >> 3));
+ ptr += FI->bytes_per_line;
+ }
+
+ /* And update the char buffer */
+ for(row = 0; row < coreboot_video_console.rows; row++)
+ for (column = 0; column < coreboot_video_console.columns; column++)
+ CHARS[row * coreboot_video_console.columns + column] = (VGA_COLOR_DEFAULT << 8);
+}
+
+static void corebootfb_putchar(u8 row, u8 col, unsigned int ch)
+{
+ unsigned char *dst;
+ unsigned char *glyph = font8x16 + ((ch & 0xFF) * FONT_HEIGHT);
+
+ unsigned char bg = (ch >> 12) & 0xF;
+ unsigned char fg = (ch >> 8) & 0xF;
+ u32 fgval = 0, bgval = 0;
+ u16 *dst16;
+ u32 *dst32;
+
+ int x, y;
+
+ if (FI->bits_per_pixel > 8) {
+ bgval = ((((vga_colors[bg] >> 0) & 0xff) >> (8 - FI->blue_mask_size)) << FI->blue_mask_pos) |
+ ((((vga_colors[bg] >> 8) & 0xff) >> (8 - FI->green_mask_size)) << FI->green_mask_pos) |
+ ((((vga_colors[bg] >> 16) & 0xff) >> (8 - FI->red_mask_size)) << FI->red_mask_pos);
+ fgval = ((((vga_colors[fg] >> 0) & 0xff) >> (8 - FI->blue_mask_size)) << FI->blue_mask_pos) |
+ ((((vga_colors[fg] >> 8) & 0xff) >> (8 - FI->green_mask_size)) << FI->green_mask_pos) |
+ ((((vga_colors[fg] >> 16) & 0xff) >> (8 - FI->red_mask_size)) << FI->red_mask_pos);
+ }
+
+
+ dst = FB + ((row * FONT_HEIGHT) * FI->bytes_per_line);
+ dst += (col * FONT_WIDTH * (FI->bits_per_pixel >> 3));
+
+ for(y = 0; y < FONT_HEIGHT; y++) {
+ for(x = FONT_WIDTH - 1; x >= 0; x--) {
+
+ switch (FI->bits_per_pixel) {
+ case 8: /* Indexed */
+ dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3)] = (*glyph & (1 << x)) ? fg : bg;
+ break;
+ case 16: /* 16 bpp */
+ dst16 = (u16 *)(dst + (FONT_WIDTH - x) * (FI->bits_per_pixel >> 3));
+ *dst16 = (*glyph & (1 << x)) ? fgval : bgval;
+ break;
+ case 24: /* 24 bpp */
+ if (*glyph & (1 << x)) {
+ dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 0] = fgval & 0xff;
+ dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 1] = (fgval >> 8) & 0xff;
+ dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 2] = (fgval >> 16) & 0xff;
+ } else {
+ dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 0] = bgval & 0xff;
+ dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 1] = (bgval >> 8) & 0xff;
+ dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 2] = (bgval >> 16) & 0xff;
+ }
+ break;
+ case 32: /* 32 bpp */
+ dst32 = (u32 *)(dst + (FONT_WIDTH - x) * (FI->bits_per_pixel >> 3));
+ *dst32 = (*glyph & (1 << x)) ? fgval : bgval;
+ break;
+ }
+ }
+
+ dst += FI->bytes_per_line;
+ glyph++;
+ }
+}
+
+static void corebootfb_putc(u8 row, u8 col, unsigned int ch)
+{
+ CHARS[row * coreboot_video_console.columns + col] = ch;
+ corebootfb_putchar(row, col, ch);
+}
+
+static void corebootfb_update_cursor(void)
+{
+ int ch, paint;
+ if(cursor_en) {
+ ch = CHARS[cursor_y * coreboot_video_console.columns + cursor_x];
+ paint = (ch & 0xff) | ((ch<<4) & 0xf000) | ((ch >> 4) & 0x0f00);
+ } else {
+ paint = CHARS[cursor_y * coreboot_video_console.columns + cursor_x];
+ }
+
+ if (cursor_y >= 0 && cursor_y < coreboot_video_console.rows)
+ corebootfb_putchar(cursor_y, cursor_x, paint);
+}
+
+static void corebootfb_enable_cursor(int state)
+{
+ cursor_en = state;
+ corebootfb_update_cursor();
+}
+
+static void corebootfb_get_cursor(unsigned int *x, unsigned int *y, unsigned int *en)
+{
+ *x = cursor_x;
+ *y = cursor_y;
+ *en = cursor_en;
+}
+
+static void corebootfb_set_cursor(unsigned int x, unsigned int y)
+{
+ int cursor_remember = cursor_en;
+ if (cursor_remember)
+ corebootfb_enable_cursor(0);
+
+ cursor_x = x;
+ cursor_y = y;
+
+ if (cursor_remember)
+ corebootfb_enable_cursor(1);
+}
+
+static int corebootfb_init(void)
+{
+ if (lib_sysinfo.framebuffer == NULL)
+ return -1;
+
+ fbinfo = (unsigned long)lib_sysinfo.framebuffer;
+
+ fbaddr = FI->physical_address;
+
+ coreboot_video_console.columns = FI->x_resolution / FONT_WIDTH;
+ coreboot_video_console.rows = FI->y_resolution / FONT_HEIGHT;
+
+ chars = (unsigned long) malloc(coreboot_video_console.rows *
+ coreboot_video_console.columns * 2);
+
+ // clear boot splash screen if there is one.
+ corebootfb_clear();
+
+ corebootfb_set_cursor(0, 0);
+ corebootfb_enable_cursor(1);
+
+ return 0;
+}
+
+struct video_console coreboot_video_console = {
+ .init = corebootfb_init,
+ .putc = corebootfb_putc,
+ .clear = corebootfb_clear,
+ .scroll_up = corebootfb_scroll_up,
+
+ .get_cursor = corebootfb_get_cursor,
+ .set_cursor = corebootfb_set_cursor,
+ .enable_cursor = corebootfb_enable_cursor,
+
+ .columns = 80,
+ .rows = 25
+};
+
projects / coreboot.git / commitdiff