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/* Copyright 2021 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "common.h"
#include "compile_time_macros.h"
#include "console.h"
#include "cros_board_info.h"
#include "fw_config.h"
#include "gpio.h"
#define CPRINTS(format, args...) cprints(CC_CHIPSET, format, ##args)
static union taeko_cbi_fw_config fw_config;
BUILD_ASSERT(sizeof(fw_config) == sizeof(uint32_t));
/*
* FW_CONFIG defaults for Taeko if the CBI.FW_CONFIG data is not
* initialized.
*/
static const union taeko_cbi_fw_config fw_config_defaults = {
.usb_db = DB_USB3_PS8815,
.kb_bl = KEYBOARD_BACKLIGHT_ENABLED,
};
/****************************************************************************
* Taeko FW_CONFIG access
*/
static void determine_storage(void)
{
const bool has_nvme = fw_config.nvme_status == NVME_ENABLED;
const bool has_emmc = fw_config.emmc_status == EMMC_ENABLED;
/*
* If both masks are enabled or disabled, read the EMMC_SKU_DET pin
* (should happen only in the factory).
*/
if (has_nvme == has_emmc) {
/* 0 = eMMC SKU, 1 = NVMe SKU */
if (gpio_get_level(GPIO_EMMC_SKU_DET)) {
CPRINTS("CBI: Detected NVMe SKU, disabling eMMC");
fw_config.emmc_status = EMMC_DISABLED;
fw_config.nvme_status = NVME_ENABLED;
} else {
CPRINTS("CBI: Detected eMMC SKU, disabling NVMe");
fw_config.nvme_status = NVME_DISABLED;
fw_config.emmc_status = EMMC_ENABLED;
}
}
cbi_set_board_info(CBI_TAG_FW_CONFIG, (uint8_t *)&fw_config,
sizeof(fw_config));
}
void board_init_fw_config(void)
{
if (cbi_get_fw_config(&fw_config.raw_value)) {
CPRINTS("CBI: Read FW_CONFIG failed, using board defaults");
fw_config = fw_config_defaults;
}
if (get_board_id() == 0) {
/*
* Early boards doesn't have correct FW_CONFIG, so replace
* it with a sensible default value.
*/
CPRINTS("CBI: Using board defaults for early board");
if (ec_cfg_has_tabletmode()) {
fw_config = fw_config_defaults;
fw_config.tabletmode = TABLETMODE_ENABLED;
} else
fw_config = fw_config_defaults;
}
determine_storage();
}
union taeko_cbi_fw_config get_fw_config(void)
{
return fw_config;
}
enum ec_cfg_usb_db_type ec_cfg_usb_db_type(void)
{
return fw_config.usb_db;
}
bool ec_cfg_has_keyboard_backlight(void)
{
return (fw_config.kb_bl == KEYBOARD_BACKLIGHT_ENABLED);
}
bool ec_cfg_has_tabletmode(void)
{
return (fw_config.tabletmode == TABLETMODE_ENABLED);
}
bool ec_cfg_has_keyboard_number_pad(void)
{
return (fw_config.kbnumpad == KEYBOARD_NUMBER_PAD);
}
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