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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __CHROMEOS_H__
#define __CHROMEOS_H__
#include <stddef.h>
#include <stdint.h>
#include <bootmode.h>
#include <device/device.h>
#include <rules.h>
#include <security/vboot/misc.h>
#include <security/vboot/vboot_common.h>
#include <types.h>
#if CONFIG(CHROMEOS)
/* functions implemented in watchdog.c */
void mark_watchdog_tombstone(void);
void reboot_from_watchdog(void);
#else
static inline void mark_watchdog_tombstone(void) { return; }
static inline void reboot_from_watchdog(void) { return; }
#endif /* CONFIG_CHROMEOS */
/**
* Perform any platform specific actions required prior to resetting the Cr50.
* Defined as weak function in cr50_enable_update.c
*/
void mainboard_prepare_cr50_reset(void);
struct romstage_handoff;
#include "gnvs.h"
struct device;
#if CONFIG(CHROMEOS_RAMOOPS)
void chromeos_ram_oops_init(chromeos_acpi_t *chromeos);
#if CONFIG(CHROMEOS_RAMOOPS_DYNAMIC)
static inline void chromeos_reserve_ram_oops(struct device *dev, int idx) {}
#else /* CONFIG_CHROMEOS_RAMOOPS_DYNAMIC */
void chromeos_reserve_ram_oops(struct device *dev, int idx);
#endif /* CONFIG_CHROMEOS_RAMOOPS_DYNAMIC */
#else /* !CONFIG_CHROMEOS_RAMOOPS */
static inline void chromeos_ram_oops_init(chromeos_acpi_t *chromeos) {}
static inline void chromeos_reserve_ram_oops(struct device *dev, int idx) {}
#endif /* CONFIG_CHROMEOS_RAMOOPS */
void cbmem_add_vpd_calibration_data(void);
/**
* get_dsm_calibration_from_key - Gets value related to DSM calibration from VPD
* @key: The key in RO_VPD. The valid prefix is "dsm_calib_". The valid keys are
* documented in https://chromeos.google.com/partner/dlm/docs/factory/vpd.html.
* @value: Output value. The value read from VPD parsed into uint64_t integer.
*
* Returns CB_SUCCESS on success or CB_ERR on failure.
*/
enum cb_err get_dsm_calibration_from_key(const char *key, uint64_t *value);
/*
* Create the OIPG package containing the Chrome OS gpios described by
* the chromeos_gpio array.
*/
struct cros_gpio;
void chromeos_acpi_gpio_generate(const struct cros_gpio *gpios, size_t num);
/*
* Common helper function and delcarations for mainboards to use to generate
* ACPI-specific Chrome OS needs.
*/
void mainboard_chromeos_acpi_generate(void);
#if CONFIG(CHROMEOS)
void chromeos_dsdt_generator(const struct device *dev);
#else
#define chromeos_dsdt_generator NULL
#endif
enum {
CROS_GPIO_REC = 1, /* Recovery */
CROS_GPIO_DEPRECATED_DEV = 2, /* Developer;
* deprecated (chromium:942901) */
CROS_GPIO_WP = 3, /* Write Protect */
CROS_GPIO_PE = 4, /* Phase enforcement for final product */
CROS_GPIO_ACTIVE_LOW = 0,
CROS_GPIO_ACTIVE_HIGH = 1,
CROS_GPIO_VIRTUAL = -1,
};
struct cros_gpio {
int type;
int polarity;
int gpio_num;
const char *device;
};
#define CROS_GPIO_INITIALIZER(typ, pol, num, dev) \
{ \
.type = (typ), \
.polarity = (pol), \
.gpio_num = (num), \
.device = (dev), \
}
#define CROS_GPIO_REC_INITIALIZER(pol, num, dev) \
CROS_GPIO_INITIALIZER(CROS_GPIO_REC, pol, num, dev)
#define CROS_GPIO_REC_AL(num, dev) \
CROS_GPIO_REC_INITIALIZER(CROS_GPIO_ACTIVE_LOW, num, dev)
#define CROS_GPIO_REC_AH(num, dev) \
CROS_GPIO_REC_INITIALIZER(CROS_GPIO_ACTIVE_HIGH, num, dev)
#define CROS_GPIO_WP_INITIALIZER(pol, num, dev) \
CROS_GPIO_INITIALIZER(CROS_GPIO_WP, pol, num, dev)
#define CROS_GPIO_WP_AL(num, dev) \
CROS_GPIO_WP_INITIALIZER(CROS_GPIO_ACTIVE_LOW, num, dev)
#define CROS_GPIO_WP_AH(num, dev) \
CROS_GPIO_WP_INITIALIZER(CROS_GPIO_ACTIVE_HIGH, num, dev)
#define CROS_GPIO_PE_INITIALIZER(pol, num, dev) \
CROS_GPIO_INITIALIZER(CROS_GPIO_PE, pol, num, dev)
#define CROS_GPIO_PE_AL(num, dev) \
CROS_GPIO_PE_INITIALIZER(CROS_GPIO_ACTIVE_LOW, num, dev)
#define CROS_GPIO_PE_AH(num, dev) \
CROS_GPIO_PE_INITIALIZER(CROS_GPIO_ACTIVE_HIGH, num, dev)
#endif /* __CHROMEOS_H__ */
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