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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Vladimir Serbinenko
*
* 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 or (at your option)
* any later version 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.
*/
#include <compiler.h>
#include <arch/acpi_device.h>
#include <arch/acpigen.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <elog.h>
#include <sar.h>
#include <smbios.h>
#include <string.h>
#include <wrdd.h>
#include "chip.h"
#define PMCS_DR 0xcc
#define PME_STS (1 << 15)
#if IS_ENABLED(CONFIG_GENERATE_SMBIOS_TABLES)
static int smbios_write_wifi(struct device *dev, int *handle,
unsigned long *current)
{
struct smbios_type_intel_wifi {
u8 type;
u8 length;
u16 handle;
u8 str;
u8 eos[2];
} __packed;
struct smbios_type_intel_wifi *t =
(struct smbios_type_intel_wifi *)*current;
int len = sizeof(struct smbios_type_intel_wifi);
memset(t, 0, sizeof(struct smbios_type_intel_wifi));
t->type = 0x85;
t->length = len - 2;
t->handle = *handle;
/*
* Intel wifi driver expects this string to be in the table 0x85
* with PCI IDs enumerated below.
*/
t->str = smbios_add_string(t->eos, "KHOIHGIUCCHHII");
len = t->length + smbios_string_table_len(t->eos);
*current += len;
*handle += 1;
return len;
}
#endif
__attribute__((weak))
int get_wifi_sar_limits(struct wifi_sar_limits *sar_limits)
{
return -1;
}
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
static void emit_sar_acpi_structures(void)
{
int i, j, package_size;
struct wifi_sar_limits sar_limits;
/* Retrieve the sar limits data */
if (get_wifi_sar_limits(&sar_limits) < 0) {
printk(BIOS_ERR, "Error: failed from getting SAR limits!\n");
return;
}
/*
* Name ("WRDS", Package () {
* Revision,
* Package () {
* Domain Type, // 0x7:WiFi
* WiFi SAR BIOS, // BIOS SAR Enable/disable
* SAR Table Set // Set#1 of SAR Table (10 bytes)
* }
* })
*/
acpigen_write_name("WRDS");
acpigen_write_package(2);
acpigen_write_dword(WRDS_REVISION);
/* Emit 'Domain Type' + 'WiFi SAR BIOS' + 10 bytes for Set#1 */
package_size = 1 + 1 + BYTES_PER_SAR_LIMIT;
acpigen_write_package(package_size);
acpigen_write_dword(WRDS_DOMAIN_TYPE_WIFI);
acpigen_write_dword(CONFIG_SAR_ENABLE);
for (i = 0; i < BYTES_PER_SAR_LIMIT; i++)
acpigen_write_byte(sar_limits.sar_limit[0][i]);
acpigen_pop_len();
acpigen_pop_len();
/*
* Name ("EWRD", Package () {
* Revision,
* Package () {
* Domain Type, // 0x7:WiFi
* Dynamic SAR Enable, // Dynamic SAR Enable/disable
* Extended SAR sets, // Number of optional SAR table sets
* SAR Table Set, // Set#2 of SAR Table (10 bytes)
* SAR Table Set, // Set#3 of SAR Table (10 bytes)
* SAR Table Set // Set#4 of SAR Table (10 bytes)
* }
* })
*/
acpigen_write_name("EWRD");
acpigen_write_package(2);
acpigen_write_dword(EWRD_REVISION);
/*
* Emit 'Domain Type' + "Dynamic SAR Enable' + 'Extended SAR sets'
* + number of bytes for Set#2 & 3 & 4
*/
package_size = 1 + 1 + 1 + (NUM_SAR_LIMITS - 1) * BYTES_PER_SAR_LIMIT;
acpigen_write_package(package_size);
acpigen_write_dword(EWRD_DOMAIN_TYPE_WIFI);
acpigen_write_dword(CONFIG_DSAR_ENABLE);
acpigen_write_dword(CONFIG_DSAR_SET_NUM);
for (i = 1; i < NUM_SAR_LIMITS; i++)
for (j = 0; j < BYTES_PER_SAR_LIMIT; j++)
acpigen_write_byte(sar_limits.sar_limit[i][j]);
acpigen_pop_len();
acpigen_pop_len();
}
static void intel_wifi_fill_ssdt(struct device *dev)
{
struct drivers_intel_wifi_config *config = dev->chip_info;
const char *path = acpi_device_path(dev->bus->dev);
u32 address;
if (!path)
return;
/* Device */
acpigen_write_scope(path);
acpigen_write_device(acpi_device_name(dev));
acpigen_write_name_integer("_UID", 0);
if (dev->chip_ops)
acpigen_write_name_string("_DDN", dev->chip_ops->name);
/* Address */
address = PCI_SLOT(dev->path.pci.devfn) & 0xffff;
address <<= 16;
address |= PCI_FUNC(dev->path.pci.devfn) & 0xffff;
acpigen_write_name_dword("_ADR", address);
/* Wake capabilities */
if (config && config->wake)
acpigen_write_PRW(config->wake, 3);
/* Fill regulatory domain structure */
if (IS_ENABLED(CONFIG_HAVE_REGULATORY_DOMAIN)) {
/*
* Name ("WRDD", Package () {
* WRDD_REVISION, // Revision
* Package () {
* WRDD_DOMAIN_TYPE_WIFI, // Domain Type, 7:WiFi
* wifi_regulatory_domain() // Country Identifier
* }
* })
*/
acpigen_write_name("WRDD");
acpigen_write_package(2);
acpigen_write_integer(WRDD_REVISION);
acpigen_write_package(2);
acpigen_write_dword(WRDD_DOMAIN_TYPE_WIFI);
acpigen_write_dword(wifi_regulatory_domain());
acpigen_pop_len();
acpigen_pop_len();
}
/* Fill Wifi sar related ACPI structures */
if (IS_ENABLED(CONFIG_USE_SAR))
emit_sar_acpi_structures();
acpigen_pop_len(); /* Device */
acpigen_pop_len(); /* Scope */
printk(BIOS_INFO, "%s.%s: %s %s\n", path, acpi_device_name(dev),
dev->chip_ops ? dev->chip_ops->name : "", dev_path(dev));
}
static const char *intel_wifi_acpi_name(const struct device *dev)
{
return "WIFI";
}
#endif
static void wifi_pci_dev_init(struct device *dev)
{
pci_dev_init(dev);
if (IS_ENABLED(CONFIG_ELOG)) {
uint32_t val;
val = pci_read_config16(dev, PMCS_DR);
if (val & PME_STS)
elog_add_event_wake(ELOG_WAKE_SOURCE_PME_WIFI, 0);
}
}
static struct pci_operations pci_ops = {
.set_subsystem = pci_dev_set_subsystem,
};
struct device_operations device_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = wifi_pci_dev_init,
#if IS_ENABLED(CONFIG_GENERATE_SMBIOS_TABLES)
.get_smbios_data = smbios_write_wifi,
#endif
.ops_pci = &pci_ops,
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
.acpi_name = &intel_wifi_acpi_name,
.acpi_fill_ssdt_generator = &intel_wifi_fill_ssdt,
#endif
};
static const unsigned short pci_device_ids[] = {
0x0084, 0x0085, 0x0089, 0x008b, 0x008e, 0x0090,
0x0886, 0x0888, 0x0891, 0x0893, 0x0895, 0x088f,
0x4236, 0x4237, 0x4238, 0x4239, 0x423b, 0x423d,
0x08b1, 0x08b2, /* Wilkins Peak 2 */
0x095a, 0x095b, /* Stone Peak 2 */
0
};
static const struct pci_driver pch_intel_wifi __pci_driver = {
.ops = &device_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.devices = pci_device_ids,
};
static void intel_wifi_enable(struct device *dev)
{
dev->ops = &device_ops;
}
struct chip_operations drivers_intel_wifi_ops = {
CHIP_NAME("Intel WiFi")
.enable_dev = &intel_wifi_enable
};
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