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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008-2010 Joseph Smith <joe@settoplinux.org>
* Copyright (C) 2010 Stefan Reinauer <stepan@openbios.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; version 2 of the License.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <device/device.h>
#include <delay.h>
#if CONFIG_VGA_ROM_RUN
#include <x86emu/x86emu.h>
#endif
#include <arch/io.h>
#include <arch/interrupt.h>
// setting the bit disables the led.
#define PARPORT_GPIO_LED_GREEN (1 << 0)
#define PARPORT_GPIO_LED_ORANGE (1 << 1)
#define PARPORT_GPIO_LED_RED (1 << 2)
#define PARPORT_GPIO_IR_PORT (1 << 6)
static u8 get_parport_gpio(void)
{
return inb(0x378);
}
static void set_parport_gpio(u8 gpios)
{
outb(gpios, 0x378);
}
static void parport_gpios(void)
{
u8 pp_gpios = get_parport_gpio();
/* disable red led */
pp_gpios |= PARPORT_GPIO_LED_RED;
set_parport_gpio(pp_gpios);
pp_gpios = get_parport_gpio();
printk(BIOS_DEBUG, "IP1000 GPIOs:\n");
printk(BIOS_DEBUG, " GPIO mask: %02x\n", pp_gpios);
printk(BIOS_DEBUG, " green led: %s\n",
(pp_gpios & PARPORT_GPIO_LED_GREEN) ? "off" : "on");
printk(BIOS_DEBUG, " orange led: %s\n",
(pp_gpios & PARPORT_GPIO_LED_ORANGE) ? "off" : "on");
printk(BIOS_DEBUG, " red led: %s\n",
(pp_gpios & PARPORT_GPIO_LED_RED) ? "off" : "on");
printk(BIOS_DEBUG, " IR port: %s\n",
(pp_gpios & PARPORT_GPIO_IR_PORT) ? "off" : "on");
}
static void flash_gpios(void)
{
u8 manufacturer_id = read8(0xffbc0000);
u8 device_id = read8(0xffbc0001);
if ((manufacturer_id == 0x20) &&
((device_id == 0x2c) || (device_id == 0x2d))) {
printk(BIOS_DEBUG, "Detected ST M50FW0%c0 flash:\n",
(device_id==0x2c)?'4':'8');
u8 fgpi = read8(0xffbc0100);
printk(BIOS_DEBUG, " FGPI0 [%c] FGPI1 [%c] FGPI2 [%c] FGPI3 [%c] FGPI4 [%c]\n",
(fgpi & (1 << 0)) ? 'X' : ' ',
(fgpi & (1 << 1)) ? 'X' : ' ',
(fgpi & (1 << 2)) ? 'X' : ' ',
(fgpi & (1 << 3)) ? 'X' : ' ',
(fgpi & (1 << 4)) ? 'X' : ' ');
} else {
printk(BIOS_DEBUG, "No ST M50FW040/M50FW080 flash, don't read FGPI.\n");
}
}
#if CONFIG_VGA_ROM_RUN
static int int15_handler(void)
{
#define BOOT_DISPLAY_DEFAULT 0
#define BOOT_DISPLAY_CRT (1 << 0)
#define BOOT_DISPLAY_TV (1 << 1)
#define BOOT_DISPLAY_EFP (1 << 2)
#define BOOT_DISPLAY_LCD (1 << 3)
#define BOOT_DISPLAY_CRT2 (1 << 4)
#define BOOT_DISPLAY_TV2 (1 << 5)
#define BOOT_DISPLAY_EFP2 (1 << 6)
#define BOOT_DISPLAY_LCD2 (1 << 7)
printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
__func__, X86_AX, X86_BX, X86_CX, X86_DX);
switch (X86_AX) {
case 0x5f35: /* Boot Display */
X86_AX = 0x005f; // Success
//M.x86.R_CL = BOOT_DISPLAY_TV2;
X86_CL = BOOT_DISPLAY_DEFAULT;
break;
case 0x5f36: /* Boot TV Format Hook */
printk(BIOS_DEBUG, "Boot TV Format Hook. TODO\n");
/* Interrupt was not handled */
return 0;
case 0x5f31: /* Post Completion Hook */
case 0x5f33: /* Hook After Mode Set */
case 0x5f34: /* Set Panel Fitting Hook */
case 0x5f38: /* Hook Before Mode Set */
case 0x5f45: /* Hook Before VESA VBE/DDC */
case 0x5f46: /* Hook Before VESA VBE/PM */
case 0x5f47: /* Notif Display Switch Hook */
case 0x5f65: /* Local Memory Initialization Hook */
/* Interrupt was not handled */
return 0;
default:
/* Interrupt was not handled */
return 0;
}
/* Interrupt handled */
return 1;
}
#endif
static void mainboard_init(device_t dev)
{
parport_gpios();
flash_gpios();
}
static void mainboard_enable(device_t dev)
{
dev->ops->init = mainboard_init;
#if CONFIG_VGA_ROM_RUN
/* Install custom int15 handler for VGA OPROM */
mainboard_interrupt_handlers(0x15, &int15_handler);
#endif
}
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
};
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