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VGA text support in qemu-mips

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* grub-core/Makefile.core.def (kernel): Add term/i386/pc/vga_text.c,
	term/i386/vga_common.c and kern/vga_init.c on qemu-mips.
	* grub-core/kern/mips/qemu_mips/init.c (grub_machine_init): Init vga
	text.
	* grub-core/kern/i386/qemu/init.c: Renamed to ...
	* grub-core/kern/vga_init.c: ... this.
	* grub-core/kern/vga_init.c (VGA_ADDR) [__mips__]: Adjust.
	(grub_qemu_init_cirrus) [__mips__]: Skip PCI and adjust the I/O base.
	* grub-core/term/i386/pc/vga_text.c (VGA_TEXT_SCREEN) [__mips__]:
	Adjust.
	* include/grub/vga.h [GRUB_MACHINE_MIPS_QEMU_MIPS]: Declare
	GRUB_MACHINE_PCI_IO_BASE.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-07-05 23:46:15 +02:00
parent 748ccabea1
commit 93c06ff9c6
7 changed files with 56 additions and 6 deletions
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147
grub-core/kern/i386/qemu/init.c
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@ -1,147 +0,0 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2010 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/pci.h>
#include <grub/machine/kernel.h>
#include <grub/misc.h>
#include <grub/vga.h>
static struct {grub_uint8_t r, g, b, a; } colors[] =
{
// {R, G, B, A}
{0x00, 0x00, 0x00, 0xFF}, // 0 = black
{0x00, 0x00, 0xA8, 0xFF}, // 1 = blue
{0x00, 0xA8, 0x00, 0xFF}, // 2 = green
{0x00, 0xA8, 0xA8, 0xFF}, // 3 = cyan
{0xA8, 0x00, 0x00, 0xFF}, // 4 = red
{0xA8, 0x00, 0xA8, 0xFF}, // 5 = magenta
{0xA8, 0x54, 0x00, 0xFF}, // 6 = brown
{0xA8, 0xA8, 0xA8, 0xFF}, // 7 = light gray
{0x54, 0x54, 0x54, 0xFF}, // 8 = dark gray
{0x54, 0x54, 0xFE, 0xFF}, // 9 = bright blue
{0x54, 0xFE, 0x54, 0xFF}, // 10 = bright green
{0x54, 0xFE, 0xFE, 0xFF}, // 11 = bright cyan
{0xFE, 0x54, 0x54, 0xFF}, // 12 = bright red
{0xFE, 0x54, 0xFE, 0xFF}, // 13 = bright magenta
{0xFE, 0xFE, 0x54, 0xFF}, // 14 = yellow
{0xFE, 0xFE, 0xFE, 0xFF} // 15 = white
};
#include <ascii.h>
static void
load_font (void)
{
unsigned i;
grub_vga_gr_write (0 << 2, GRUB_VGA_GR_GR6);
grub_vga_sr_write (GRUB_VGA_SR_MEMORY_MODE_NORMAL, GRUB_VGA_SR_MEMORY_MODE);
grub_vga_sr_write (1 << GRUB_VGA_TEXT_FONT_PLANE,
GRUB_VGA_SR_MAP_MASK_REGISTER);
grub_vga_gr_write (0, GRUB_VGA_GR_DATA_ROTATE);
grub_vga_gr_write (0, GRUB_VGA_GR_MODE);
grub_vga_gr_write (0xff, GRUB_VGA_GR_BITMASK);
for (i = 0; i < 128; i++)
grub_memcpy ((void *) (0xa0000 + 32 * i), ascii_bitmaps + 16 * i, 16);
}
static void
load_palette (void)
{
unsigned i;
for (i = 0; i < 16; i++)
grub_vga_write_arx (i, i);
for (i = 0; i < ARRAY_SIZE (colors); i++)
grub_vga_palette_write (i, colors[i].r, colors[i].g, colors[i].b);
}
void
grub_qemu_init_cirrus (void)
{
auto int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev, grub_pci_id_t pciid);
int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev, grub_pci_id_t pciid __attribute__ ((unused)))
{
grub_pci_address_t addr;
grub_uint32_t class;
addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
class = grub_pci_read (addr);
if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_SUBCLASS_VGA)
return 0;
/* FIXME: chooose addresses dynamically. */
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
grub_pci_write (addr, 0xf0000000 | GRUB_PCI_ADDR_MEM_PREFETCH
| GRUB_PCI_ADDR_SPACE_MEMORY | GRUB_PCI_ADDR_MEM_TYPE_32);
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG1);
grub_pci_write (addr, 0xf2000000
| GRUB_PCI_ADDR_SPACE_MEMORY | GRUB_PCI_ADDR_MEM_TYPE_32);
addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
grub_pci_write (addr, GRUB_PCI_COMMAND_MEM_ENABLED
| GRUB_PCI_COMMAND_IO_ENABLED);
return 1;
}
grub_pci_iterate (find_card);
grub_outb (GRUB_VGA_IO_MISC_COLOR, GRUB_VGA_IO_MISC_WRITE);
load_font ();
grub_vga_gr_write (GRUB_VGA_GR_GR6_MMAP_CGA, GRUB_VGA_GR_GR6);
grub_vga_gr_write (GRUB_VGA_GR_MODE_ODD_EVEN, GRUB_VGA_GR_MODE);
grub_vga_sr_write (GRUB_VGA_SR_MEMORY_MODE_NORMAL, GRUB_VGA_SR_MEMORY_MODE);
grub_vga_sr_write ((1 << GRUB_VGA_TEXT_TEXT_PLANE)
| (1 << GRUB_VGA_TEXT_ATTR_PLANE),
GRUB_VGA_SR_MAP_MASK_REGISTER);
grub_vga_cr_write (15, GRUB_VGA_CR_CELL_HEIGHT);
grub_vga_cr_write (79, GRUB_VGA_CR_HORIZ_END);
grub_vga_cr_write (40, GRUB_VGA_CR_PITCH);
int vert = 25 * 16;
grub_vga_cr_write (vert & 0xff, GRUB_VGA_CR_VDISPLAY_END);
grub_vga_cr_write (((vert >> GRUB_VGA_CR_OVERFLOW_HEIGHT1_SHIFT)
& GRUB_VGA_CR_OVERFLOW_HEIGHT1_MASK)
| ((vert >> GRUB_VGA_CR_OVERFLOW_HEIGHT2_SHIFT)
& GRUB_VGA_CR_OVERFLOW_HEIGHT2_MASK),
GRUB_VGA_CR_OVERFLOW);
load_palette ();
grub_vga_write_arx (GRUB_VGA_ARX_MODE_TEXT, GRUB_VGA_ARX_MODE);
grub_vga_write_arx (0, GRUB_VGA_ARX_COLOR_SELECT);
grub_vga_sr_write (GRUB_VGA_SR_CLOCKING_MODE_8_DOT_CLOCK,
GRUB_VGA_SR_CLOCKING_MODE);
grub_vga_cr_write (14, GRUB_VGA_CR_CURSOR_START);
grub_vga_cr_write (15, GRUB_VGA_CR_CURSOR_END);
grub_outb (0x20, 0x3c0);
}