88dcb3179b
The CMOS option system does not support negative integers. Thus, retype and rename the option API functions to reflect this. Change-Id: Id3480e5cfc0ec90674def7ef0919e0b7ac5b19b3 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/52672 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Felix Singer <felixsinger@posteo.net>
172 lines
3.9 KiB
C
172 lines
3.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <types.h>
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#include <device/device.h>
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#include <device/pci_def.h>
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#include <console/console.h>
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#if CONFIG(VGA_ROM_RUN)
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#include <x86emu/x86emu.h>
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#endif
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#include <option.h>
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#include <arch/interrupt.h>
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#include <southbridge/intel/bd82x6x/pch.h>
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#if CONFIG(VGA_ROM_RUN)
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static int int15_handler(void)
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{
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int res = 0;
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printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
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__func__, X86_AX, X86_BX, X86_CX, X86_DX);
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switch (X86_EAX & 0xffff) {
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case 0x5f34:
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/*
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* Set Panel Fitting Hook:
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* bit 2 = Graphics Stretching
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* bit 1 = Text Stretching
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* bit 0 = Centering (do not set with bit1 or bit2)
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* 0 = video BIOS default
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*/
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X86_EAX &= 0xffff0000;
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X86_EAX |= 0x005f;
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X86_ECX &= 0xffffff00;
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X86_ECX |= 0x00; /* Use video BIOS default */
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res = 1;
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break;
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case 0x5f35:
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/*
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* Boot Display Device Hook:
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* bit 0 = CRT
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* bit 1 = TV (eDP)
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* bit 2 = EFP
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* bit 3 = LFP
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* bit 4 = CRT2
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* bit 5 = TV2 (eDP)
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* bit 6 = EFP2
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* bit 7 = LFP2
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*/
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X86_EAX &= 0xffff0000;
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X86_EAX |= 0x005f;
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X86_ECX &= 0xffff0000;
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X86_ECX |= 0x0000; /* Use video BIOS default */
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res = 1;
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break;
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case 0x5f51:
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/*
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* Hook to select active LFP configuration:
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* 00h = No LVDS, VBIOS does not enable LVDS
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* 01h = Int-LVDS, LFP driven by integrated LVDS decoder
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* 02h = SDVO-LVDS, LFP driven by SDVO decoder
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* 03h = eDP, LFP Driven by Int-DisplayPort encoder
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*/
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X86_EAX &= 0xffff0000;
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X86_EAX |= 0x005f;
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X86_ECX &= 0xffff0000;
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X86_ECX |= 0x0000; /* TODO: Make this configurable in NVRAM? */
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res = 1;
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break;
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case 0x5f40:
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/*
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* Boot Panel Type Hook:
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* BL(in): 00h = LFP, 01h = LFP2
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* CL(out): panel type id in table: 1..16
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*/
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if (0 == (X86_EBX & 0xff)) {
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X86_EAX &= 0xffff0000;
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X86_EAX |= 0x015f;
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res = 1;
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} else if (1 == (X86_EBX & 0xff)) {
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X86_EAX &= 0xffff0000;
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X86_EAX |= 0x015f;
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res = 1;
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} else {
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printk(BIOS_DEBUG,
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"Unknown panel index %u "
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"in INT15 function %04x!\n",
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X86_EBX & 0xff, X86_EAX & 0xffff);
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}
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break;
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case 0x5f52:
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/*
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* Panel Color Depth:
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* 00h = 18 bit
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* 01h = 24 bit
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*/
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X86_EAX &= 0xffff0000;
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X86_EAX |= 0x005f;
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X86_ECX &= 0xffff0000;
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X86_ECX |= 0x0001;
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res = 1;
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break;
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case 0x5f14:
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if ((X86_EBX & 0xffff) == 0x78f) {
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/*
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* Get Miscellaneous Status Hook:
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* bit 2: AC power active?
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* bit 1: lid closed?
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* bit 0: docked?
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*/
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X86_EAX &= 0xffff0000;
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X86_EAX |= 0x015f;
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res = 1;
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} else {
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printk(BIOS_DEBUG,
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"Unknown BX 0x%04x in INT15 function %04x!\n",
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X86_EBX & 0xffff, X86_EAX & 0xffff);
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}
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break;
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case 0x5f49:
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/*
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* Get Inverter Type and Polarity:
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* EBX: backlight control brightness: 0..255
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* ECX:
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* 0 = Enable PWM inverted, 2 = Enable PWM
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* 1 = Enable I2C inverted, 3 = Enable I2C
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*/
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X86_EAX &= 0xffff0000;
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X86_EAX |= 0x015f;
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res = 1;
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break;
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default:
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printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n",
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X86_EAX & 0xffff);
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break;
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}
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return res;
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}
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#endif
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/* mainboard_enable is executed as first thing after */
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/* enumerate_buses(). */
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static void mainboard_enable(struct device *dev)
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{
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#if CONFIG(PCI_OPTION_ROM_RUN_YABEL) || \
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CONFIG(PCI_OPTION_ROM_RUN_REALMODE)
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/* Install custom int15 handler for VGA OPROM */
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mainboard_interrupt_handlers(0x15, &int15_handler);
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#endif
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unsigned int disable = get_uint_option("ethernet1", 0);
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if (disable) {
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struct device *nic = pcidev_on_root(0x1c, 2);
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if (nic) {
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printk(BIOS_DEBUG, "DISABLE FIRST NIC!\n");
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nic->enabled = 0;
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}
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}
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disable = get_uint_option("ethernet2", 0);
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if (disable) {
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struct device *nic = pcidev_on_root(0x1c, 3);
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if (nic) {
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printk(BIOS_DEBUG, "DISABLE SECOND NIC!\n");
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nic->enabled = 0;
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}
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}
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}
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struct chip_operations mainboard_ops = {
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.enable_dev = mainboard_enable,
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};
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