2N/A/*
2N/A * GRUB -- GRand Unified Bootloader
2N/A * Copyright (C) 2010,2011 Free Software Foundation, Inc.
2N/A *
2N/A * GRUB is free software: you can redistribute it and/or modify
2N/A * it under the terms of the GNU General Public License as published by
2N/A * the Free Software Foundation, either version 3 of the License, or
2N/A * (at your option) any later version.
2N/A *
2N/A * GRUB is distributed in the hope that it will be useful,
2N/A * but WITHOUT ANY WARRANTY; without even the implied warranty of
2N/A * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2N/A * GNU General Public License for more details.
2N/A *
2N/A * You should have received a copy of the GNU General Public License
2N/A * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
2N/A */
2N/A
2N/A#ifndef __mips__
2N/A#include <grub/pci.h>
2N/A#endif
2N/A#include <grub/machine/kernel.h>
2N/A#include <grub/misc.h>
2N/A#include <grub/vga.h>
2N/A
2N/Astatic struct {grub_uint8_t r, g, b, a; } colors[] =
2N/A {
2N/A // {R, G, B, A}
2N/A {0x00, 0x00, 0x00, 0xFF}, // 0 = black
2N/A {0x00, 0x00, 0xA8, 0xFF}, // 1 = blue
2N/A {0x00, 0xA8, 0x00, 0xFF}, // 2 = green
2N/A {0x00, 0xA8, 0xA8, 0xFF}, // 3 = cyan
2N/A {0xA8, 0x00, 0x00, 0xFF}, // 4 = red
2N/A {0xA8, 0x00, 0xA8, 0xFF}, // 5 = magenta
2N/A {0xA8, 0x54, 0x00, 0xFF}, // 6 = brown
2N/A {0xA8, 0xA8, 0xA8, 0xFF}, // 7 = light gray
2N/A
2N/A {0x54, 0x54, 0x54, 0xFF}, // 8 = dark gray
2N/A {0x54, 0x54, 0xFE, 0xFF}, // 9 = bright blue
2N/A {0x54, 0xFE, 0x54, 0xFF}, // 10 = bright green
2N/A {0x54, 0xFE, 0xFE, 0xFF}, // 11 = bright cyan
2N/A {0xFE, 0x54, 0x54, 0xFF}, // 12 = bright red
2N/A {0xFE, 0x54, 0xFE, 0xFF}, // 13 = bright magenta
2N/A {0xFE, 0xFE, 0x54, 0xFF}, // 14 = yellow
2N/A {0xFE, 0xFE, 0xFE, 0xFF} // 15 = white
2N/A };
2N/A
2N/A#ifdef __mips__
2N/Aextern unsigned char ascii_bitmaps[];
2N/A#else
2N/A#include <ascii.h>
2N/A#endif
2N/A
2N/A#ifdef __mips__
2N/A#define VGA_ADDR 0xb00a0000
2N/A#else
2N/A#define VGA_ADDR 0xa0000
2N/A#endif
2N/A
2N/Astatic void
2N/Aload_font (void)
2N/A{
2N/A unsigned i;
2N/A
2N/A grub_vga_gr_write (0 << 2, GRUB_VGA_GR_GR6);
2N/A
2N/A grub_vga_sr_write (GRUB_VGA_SR_MEMORY_MODE_NORMAL, GRUB_VGA_SR_MEMORY_MODE);
2N/A grub_vga_sr_write (1 << GRUB_VGA_TEXT_FONT_PLANE,
2N/A GRUB_VGA_SR_MAP_MASK_REGISTER);
2N/A
2N/A grub_vga_gr_write (0, GRUB_VGA_GR_DATA_ROTATE);
2N/A grub_vga_gr_write (0, GRUB_VGA_GR_MODE);
2N/A grub_vga_gr_write (0xff, GRUB_VGA_GR_BITMASK);
2N/A
2N/A for (i = 0; i < 128; i++)
2N/A grub_memcpy ((void *) (VGA_ADDR + 32 * i), ascii_bitmaps + 16 * i, 16);
2N/A}
2N/A
2N/Astatic void
2N/Aload_palette (void)
2N/A{
2N/A unsigned i;
2N/A for (i = 0; i < 16; i++)
2N/A grub_vga_write_arx (i, i);
2N/A
2N/A for (i = 0; i < ARRAY_SIZE (colors); i++)
2N/A grub_vga_palette_write (i, colors[i].r, colors[i].g, colors[i].b);
2N/A}
2N/A
2N/Avoid
2N/Agrub_qemu_init_cirrus (void)
2N/A{
2N/A#ifndef __mips__
2N/A auto int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev, grub_pci_id_t pciid);
2N/A int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev, grub_pci_id_t pciid __attribute__ ((unused)))
2N/A {
2N/A grub_pci_address_t addr;
2N/A grub_uint32_t class;
2N/A
2N/A addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
2N/A class = grub_pci_read (addr);
2N/A
2N/A if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_SUBCLASS_VGA)
2N/A return 0;
2N/A
2N/A /* FIXME: chooose addresses dynamically. */
2N/A addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
2N/A grub_pci_write (addr, 0xf0000000 | GRUB_PCI_ADDR_MEM_PREFETCH
2N/A | GRUB_PCI_ADDR_SPACE_MEMORY | GRUB_PCI_ADDR_MEM_TYPE_32);
2N/A addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG1);
2N/A grub_pci_write (addr, 0xf2000000
2N/A | GRUB_PCI_ADDR_SPACE_MEMORY | GRUB_PCI_ADDR_MEM_TYPE_32);
2N/A
2N/A addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
2N/A grub_pci_write (addr, GRUB_PCI_COMMAND_MEM_ENABLED
2N/A | GRUB_PCI_COMMAND_IO_ENABLED);
2N/A
2N/A return 1;
2N/A }
2N/A
2N/A grub_pci_iterate (find_card);
2N/A#endif
2N/A
2N/A grub_outb (GRUB_VGA_IO_MISC_COLOR,
2N/A GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_MISC_WRITE);
2N/A
2N/A load_font ();
2N/A
2N/A grub_vga_gr_write (GRUB_VGA_GR_GR6_MMAP_CGA, GRUB_VGA_GR_GR6);
2N/A grub_vga_gr_write (GRUB_VGA_GR_MODE_ODD_EVEN, GRUB_VGA_GR_MODE);
2N/A
2N/A grub_vga_sr_write (GRUB_VGA_SR_MEMORY_MODE_NORMAL, GRUB_VGA_SR_MEMORY_MODE);
2N/A
2N/A grub_vga_sr_write ((1 << GRUB_VGA_TEXT_TEXT_PLANE)
2N/A | (1 << GRUB_VGA_TEXT_ATTR_PLANE),
2N/A GRUB_VGA_SR_MAP_MASK_REGISTER);
2N/A
2N/A grub_vga_cr_write (15, GRUB_VGA_CR_CELL_HEIGHT);
2N/A grub_vga_cr_write (79, GRUB_VGA_CR_HORIZ_END);
2N/A grub_vga_cr_write (40, GRUB_VGA_CR_PITCH);
2N/A
2N/A int vert = 25 * 16;
2N/A grub_vga_cr_write (vert & 0xff, GRUB_VGA_CR_VDISPLAY_END);
2N/A grub_vga_cr_write (((vert >> GRUB_VGA_CR_OVERFLOW_HEIGHT1_SHIFT)
2N/A & GRUB_VGA_CR_OVERFLOW_HEIGHT1_MASK)
2N/A | ((vert >> GRUB_VGA_CR_OVERFLOW_HEIGHT2_SHIFT)
2N/A & GRUB_VGA_CR_OVERFLOW_HEIGHT2_MASK),
2N/A GRUB_VGA_CR_OVERFLOW);
2N/A
2N/A load_palette ();
2N/A
2N/A grub_vga_write_arx (GRUB_VGA_ARX_MODE_TEXT, GRUB_VGA_ARX_MODE);
2N/A grub_vga_write_arx (0, GRUB_VGA_ARX_COLOR_SELECT);
2N/A
2N/A grub_vga_sr_write (GRUB_VGA_SR_CLOCKING_MODE_8_DOT_CLOCK,
2N/A GRUB_VGA_SR_CLOCKING_MODE);
2N/A
2N/A grub_vga_cr_write (14, GRUB_VGA_CR_CURSOR_START);
2N/A grub_vga_cr_write (15, GRUB_VGA_CR_CURSOR_END);
2N/A
2N/A grub_outb (0x20, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_ARX);
2N/A}