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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2009 Joseph Smith <joe@settoplinux.org>
*
* 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.
*/
#include <console/console.h>
#include <arch/io.h>
#include <stdint.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <cbfs.h>
#include <x86emu/x86emu.h>
static void vga_init(device_t dev)
{
printk(BIOS_INFO, "Starting Graphics Initialization\n");
size_t mbi_len;
void *mbi = cbfs_boot_map_with_leak("mbi.bin", CBFS_TYPE_MBI, &mbi_len);
if (mbi && mbi_len) {
/* The GDT or coreboot table is going to live here. But
* a long time after we relocated the GNVS, so this is
* not troublesome.
*/
*(u32 *)0x500 = (u32)mbi;
*(u32 *)0x504 = (u32)mbi_len;
outb(0xeb, 0xb2);
}
pci_dev_init(dev);
printk(BIOS_INFO, "Graphics Initialization Complete\n");
/* Enable TV-Out */
#if IS_ENABLED(CONFIG_PCI_OPTION_ROM_RUN_YABEL)
#define PIPE_A_CRT (1 << 0)
#define PIPE_A_LFP (1 << 1)
#define PIPE_A_TV (1 << 3)
#define PIPE_B_CRT (1 << 8)
#define PIPE_B_TV (1 << 10)
printk(BIOS_DEBUG, "Enabling TV-Out\n");
void runInt10(void);
X86_AX = 0x5f64;
X86_BX = 0x0001; // Set Display Device, force execution
X86_CX = PIPE_A_CRT | PIPE_A_TV;
// M.x86.R_CX = PIPE_B_TV;
runInt10();
switch (X86_AX) {
case 0x005f:
printk(BIOS_DEBUG, "... failed.\n");
break;
case 0x015f:
printk(BIOS_DEBUG, "... ok.\n");
break;
default:
printk(BIOS_DEBUG, "... not supported.\n");
break;
}
#endif
}
static const struct device_operations vga_operations = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = vga_init,
.scan_bus = 0,
.enable = 0,
.ops_pci = 0,
};
static const struct pci_driver vga_driver __pci_driver = {
.ops = &vga_operations,
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x3577,
};
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