/* SPDX-License-Identifier: GPL-2.0-only */

#include <types.h>
#include <string.h>
#include <acpi/acpi.h>
#include <arch/ioapic.h>
#include <arch/smp/mpspec.h>
#include <device/device.h>
#include <device/pci_ops.h>
#include <version.h>

#include "../qemu-i440fx/fw_cfg.h"
#include "../qemu-i440fx/acpi.h"
#include <southbridge/intel/i82801ix/nvs.h>

void acpi_create_gnvs(global_nvs_t *gnvs)
{
	gnvs->apic = 1;
	gnvs->mpen = 1; /* Enable Multi Processing */

	/* Enable both COM ports */
	gnvs->cmap = 0x01;
	gnvs->cmbp = 0x01;
}


void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * facs, void *dsdt)
{
	acpi_header_t *header = &(fadt->header);
	u16 pmbase = pci_read_config16(pcidev_on_root(0x1f, 0), 0x40) & 0xfffe;
	memset((void *) fadt, 0, sizeof(acpi_fadt_t));
	memcpy(header->signature, "FACP", 4);
	header->length = sizeof(acpi_fadt_t);
	header->revision = get_acpi_table_revision(FADT);
	memcpy(header->oem_id, OEM_ID, 6);
	memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
	memcpy(header->asl_compiler_id, ASLC, 4);
	header->asl_compiler_revision = asl_revision;

	fadt->firmware_ctrl = (unsigned long) facs;
	fadt->dsdt = (unsigned long) dsdt;
	fadt->reserved = 0x00;
	fadt->preferred_pm_profile = PM_MOBILE;
	fadt->sci_int = 0x9;
	fadt->smi_cmd = 0;
	fadt->acpi_enable = 0;
	fadt->acpi_disable = 0;
	fadt->s4bios_req = 0x0;
	fadt->pstate_cnt = 0;

	fadt->pm1a_evt_blk = pmbase;
	fadt->pm1b_evt_blk = 0x0;
	fadt->pm1a_cnt_blk = pmbase + 0x4;
	fadt->pm1b_cnt_blk = 0x0;
	fadt->pm2_cnt_blk = pmbase + 0x50;
	fadt->pm_tmr_blk = pmbase + 0x8;
	fadt->gpe0_blk = pmbase + 0x20;
	fadt->gpe1_blk = 0;

	fadt->pm1_evt_len = 4;
	fadt->pm1_cnt_len = 2; /* Upper word is reserved and
				  Linux complains about 32 bit. */
	fadt->pm2_cnt_len = 1;
	fadt->pm_tmr_len = 4;
	fadt->gpe0_blk_len = 16;
	fadt->gpe1_blk_len = 0;
	fadt->gpe1_base = 0;
	fadt->cst_cnt = 0;
	fadt->p_lvl2_lat = 1;
	fadt->p_lvl3_lat = 0x39;
	fadt->flush_size = 0;
	fadt->flush_stride = 0;
	fadt->duty_offset = 1;
	fadt->duty_width = 3;
	fadt->day_alrm = 0xd;
	fadt->mon_alrm = 0x00;
	fadt->century = 0x32;
	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_FREE;
	fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED |
			ACPI_FADT_SLEEP_BUTTON | ACPI_FADT_S4_RTC_WAKE |
			ACPI_FADT_DOCKING_SUPPORTED | ACPI_FADT_RESET_REGISTER |
			ACPI_FADT_PLATFORM_CLOCK;

	fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO;
	fadt->reset_reg.bit_width = 8;
	fadt->reset_reg.bit_offset = 0;
	fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
	fadt->reset_reg.addrl = 0xcf9;
	fadt->reset_reg.addrh = 0;
	fadt->reset_value = 0x06;

	fadt->x_firmware_ctl_l = 0; /* Set X_FIRMWARE_CTRL only if FACS is */
	fadt->x_firmware_ctl_h = 0; /* above 4GB. If X_FIRMWARE_CTRL is set, */
				    /* then FIRMWARE_CTRL must be zero. */
	fadt->x_dsdt_l = (unsigned long)dsdt;
	fadt->x_dsdt_h = 0;

	fadt->x_pm1a_evt_blk.space_id = 1;
	fadt->x_pm1a_evt_blk.bit_width = 32;
	fadt->x_pm1a_evt_blk.bit_offset = 0;
	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
	fadt->x_pm1a_evt_blk.addrl = pmbase;
	fadt->x_pm1a_evt_blk.addrh = 0x0;

	fadt->x_pm1b_evt_blk.space_id = 0;
	fadt->x_pm1b_evt_blk.bit_width = 0;
	fadt->x_pm1b_evt_blk.bit_offset = 0;
	fadt->x_pm1b_evt_blk.access_size = 0;
	fadt->x_pm1b_evt_blk.addrl = 0x0;
	fadt->x_pm1b_evt_blk.addrh = 0x0;

	fadt->x_pm1a_cnt_blk.space_id = 1;
	fadt->x_pm1a_cnt_blk.bit_width = 16; /* Upper word is reserved and
						Linux complains about 32 bit. */
	fadt->x_pm1a_cnt_blk.bit_offset = 0;
	fadt->x_pm1a_cnt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
	fadt->x_pm1a_cnt_blk.addrl = pmbase + 0x4;
	fadt->x_pm1a_cnt_blk.addrh = 0x0;

	fadt->x_pm1b_cnt_blk.space_id = 0;
	fadt->x_pm1b_cnt_blk.bit_width = 0;
	fadt->x_pm1b_cnt_blk.bit_offset = 0;
	fadt->x_pm1b_cnt_blk.access_size = 0;
	fadt->x_pm1b_cnt_blk.addrl = 0x0;
	fadt->x_pm1b_cnt_blk.addrh = 0x0;

	fadt->x_pm2_cnt_blk.space_id = 1;
	fadt->x_pm2_cnt_blk.bit_width = 8;
	fadt->x_pm2_cnt_blk.bit_offset = 0;
	fadt->x_pm2_cnt_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
	fadt->x_pm2_cnt_blk.addrl = pmbase + 0x50;
	fadt->x_pm2_cnt_blk.addrh = 0x0;

	fadt->x_pm_tmr_blk.space_id = 1;
	fadt->x_pm_tmr_blk.bit_width = 32;
	fadt->x_pm_tmr_blk.bit_offset = 0;
	fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
	fadt->x_pm_tmr_blk.addrl = pmbase + 0x8;
	fadt->x_pm_tmr_blk.addrh = 0x0;

	fadt->x_gpe0_blk.space_id = 1;
	fadt->x_gpe0_blk.bit_width = 128;
	fadt->x_gpe0_blk.bit_offset = 0;
	fadt->x_gpe0_blk.access_size = 0;
	fadt->x_gpe0_blk.addrl = pmbase + 0x20;
	fadt->x_gpe0_blk.addrh = 0x0;

	fadt->x_gpe1_blk.space_id = 0;
	fadt->x_gpe1_blk.bit_width = 0;
	fadt->x_gpe1_blk.bit_offset = 0;
	fadt->x_gpe1_blk.access_size = 0;
	fadt->x_gpe1_blk.addrl = 0x0;
	fadt->x_gpe1_blk.addrh = 0x0;

	header->checksum = acpi_checksum((void *) fadt, header->length);
}

unsigned long acpi_fill_madt(unsigned long current)
{
	/* Local APICs */
	current = acpi_create_madt_lapics(current);

	/* IOAPIC */
	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
				2, IO_APIC_ADDR, 0);

	/* INT_SRC_OVR */
	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
		 current, 0, 0, 2, 0);
	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
		 current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH);

	return current;
}

unsigned long acpi_fill_mcfg(unsigned long current)
{
	struct device *dev;
	u32 reg;

	dev = dev_find_device(0x8086, 0x29c0, 0);
	if (!dev)
		return current;

	reg = pci_read_config32(dev, 0x60);
	if ((reg & 0x07) != 0x01)  /* require enabled + 256MB size */
		return current;

	current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current,
					     reg & 0xf0000000, 0x0, 0x0, 255);
	return current;
}
