mchp_xec_espi.h

Go to the documentation of this file.

/*
 * Copyright (c) 2026 Microchip Technology Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

 
#ifndef INCLUDE_ZEPHYR_DRIVERS_ESPI_MCHP_XEC_ESPI_H_
#define INCLUDE_ZEPHYR_DRIVERS_ESPI_MCHP_XEC_ESPI_H_
 
#include <zephyr/drivers/espi.h>
 
#ifdef CONFIG_ESPI_PERIPHERAL_XEC_MAILBOX
 
#define MCHP_XEC_MAX_MAILBOX_INDEX 32

#define MCHP_XEC_ESPI_PERIPHERAL_MAILBOX 0x100U
 
enum mchp_xec_espi_pc_mbox_cmd_id {
        MCHP_XEC_ESPI_PC_MBOX_CMD_ID_HOST_TO_EC = 0,
        MCHP_XEC_ESPI_PC_MBOX_CMD_ID_EC_TO_HOST,
        MCHP_XEC_ESPI_PC_MBOX_CMD_ID_SMI_SRC,
        MCHP_XEC_ESPI_PC_MBOX_CMD_ID_SMI_MASK,
        MCHP_XEC_ESPI_PC_MBOX_CMD_ID_MAX,
};
 
enum mchp_xec_espi_pc_mbox_isrc {
        MCHP_XEC_ESPI_PC_MBOX_ISRC_EC = 0,
        MCHP_XEC_ESPI_PC_MBOX_ISRC_SIRQ,
        MCHP_XEC_ESPI_PC_MBOX_ISRC_SIRQ_SMI,
        MCHP_XEC_ESPI_PC_MBOX_ISRC_MAX,
};

int mchp_xec_espi_pc_mailbox_get(const struct device *dev, uint8_t mbox_idx, uint8_t num_mboxes,
                                 uint8_t *dest);

int mchp_xec_espi_pc_mailbox_set(const struct device *dev, uint8_t mbox_idx, uint8_t num_mboxes,
                                 const uint8_t *src);

int mchp_xec_espi_pc_mailbox_get_all(const struct device *dev, uint32_t *dest);

int mchp_xec_espi_pc_mailbox_set_all(const struct device *dev, const uint32_t *src);

int mchp_xec_espi_pc_mailbox_cmd(const struct device *dev, enum mchp_xec_espi_pc_mbox_cmd_id cmd_id,
                                 uint8_t cmd);

int mchp_xec_espi_pc_mailbox_ictrl(const struct device *dev, enum mchp_xec_espi_pc_mbox_isrc id,
                                   uint8_t enable);
 
#endif /* CONFIG_ESPI_PERIPHERAL_XEC_MAILBOX */
 
#endif /* INCLUDE_ZEPHYR_DRIVERS_ESPI_MCHP_XEC_ESPI_H_ */