path: root/arch/arm/include/asm/imx-common/sci/svc/misc/api.h

/*
 * Copyright (C) 2016 Freescale Semiconductor, Inc.
 * Copyright 2017 NXP
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

/*!
 * Header file containing the public API for the System Controller (SC)
 * Miscellaneous (MISC) function.
 *
 * @addtogroup MISC_SVC (SVC) Miscellaneous Service
 *
 * Module for the Miscellaneous (MISC) service.
 *
 * @{
 */

#ifndef _SC_MISC_API_H
#define _SC_MISC_API_H

/* Includes */

#include <asm/imx-common/sci/types.h>
#include <asm/imx-common/sci/svc/rm/api.h>

/* Defines */

/*!
 * @name Defines for type widths
 */
/*@{*/
#define SC_MISC_DMA_GRP_W       5       /*!< Width of sc_misc_dma_group_t */
/*@}*/

/*! Max DMA channel priority group */
#define SC_MISC_DMA_GRP_MAX     31


/*!
 * @name Defines for sc_misc_boot_status_t
 */
/*@{*/
#define SC_MISC_BOOT_STATUS_SUCCESS     0   /*!< Success */
#define SC_MISC_BOOT_STATUS_SECURITY    1   /*!< Security violation */
/*@}*/

/*!
 * @name Defines for sc_misc_seco_auth_cmd_t
 */
/*@{*/
#define SC_MISC_SECO_AUTH_SECO_FW       0   /*!< SECO Firmware */
#define SC_MISC_SECO_AUTH_HDMI_TX_FW    1   /*!< HDMI TX Firmware */
#define SC_MISC_SECO_AUTH_HDMI_RX_FW    2   /*!< HDMI RX Firmware */
/*@}*/

/*!
 * @name Defines for sc_misc_temp_t
 */
/*@{*/
#define SC_MISC_TEMP                    0   /*!< Temp sensor */
#define SC_MISC_TEMP_HIGH               1   /*!< Temp high alarm */
#define SC_MISC_TEMP_LOW                2   /*!< Temp low alarm */
/*@}*/

/* Types */

/*!
 * This type is used to store a DMA channel priority group.
 */
typedef uint8_t sc_misc_dma_group_t;

/*!
 * This type is used report boot status.
 */
typedef uint8_t sc_misc_boot_status_t;

/*!
 * This type is used to issue SECO authenticate commands.
 */
typedef uint8_t sc_misc_seco_auth_cmd_t;

/*!
 * This type is used report boot status.
 */
typedef uint8_t sc_misc_temp_t;

/* Functions */

/*!
 * @name Control Functions
 * @{
 */

/*!
 * This function sets a miscellaneous control value.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    resource the control is associated with
 * @param[in]     ctrl        control to change
 * @param[in]     val         value to apply to the control
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_PARM if arguments out of range or invalid,
 * - SC_ERR_NOACCESS if caller's partition is not the resource owner or parent
 *   of the owner
 *
 * Refer to the [Control List](@ref CONTROLS) for valid control values.
 */
sc_err_t sc_misc_set_control(sc_ipc_t ipc, sc_rsrc_t resource,
    sc_ctrl_t ctrl, uint32_t val);

/*!
 * This function gets a miscellaneous control value.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    resource the control is associated with
 * @param[in]     ctrl        control to get
 * @param[out]    val         pointer to return the control value
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_PARM if arguments out of range or invalid,
 * - SC_ERR_NOACCESS if caller's partition is not the resource owner or parent
 *   of the owner
 *
 * Refer to the [Control List](@ref CONTROLS) for valid control values.
 */
sc_err_t sc_misc_get_control(sc_ipc_t ipc, sc_rsrc_t resource,
    sc_ctrl_t ctrl, uint32_t *val);

/* @} */

/*!
 * @name DMA Functions
 * @{
 */

/*!
 * This function configures the max DMA channel priority group for a
 * partition.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     pt          handle of partition to assign \a max
 * @param[in]     max         max priority group (0-31)
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_PARM if arguments out of range or invalid,
 * - SC_ERR_NOACCESS if caller's partition is not the parent
 *   of the affected partition
 *
 * Valid \a max range is 0-31 with 0 being the lowest and 31 the highest.
 * Default is the max priority group for the parent partition of \a pt.
 */
sc_err_t sc_misc_set_max_dma_group(sc_ipc_t ipc, sc_rm_pt_t pt,
    sc_misc_dma_group_t max);

/*!
 * This function configures the priority group for a DMA channel.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    DMA channel resource
 * @param[in]     group       priority group (0-31)
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_PARM if arguments out of range or invalid,
 * - SC_ERR_NOACCESS if caller's partition is not the owner or parent
 *   of the owner of the DMA channel
 *
 * Valid \a group range is 0-31 with 0 being the lowest and 31 the highest.
 * The max value of \a group is limited by the partition max set using
 * sc_misc_set_max_dma_group().
 */
sc_err_t sc_misc_set_dma_group(sc_ipc_t ipc, sc_rsrc_t resource,
    sc_misc_dma_group_t group);

/* @} */

/*!
 * @name Security Functions
 * @{
 */

/*!
 * This function loads a SECO image.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     addr_src    address of image source
 * @param[in]     addr_dst    address of image destination
 * @param[in]     len         lenth of image to load
 * @param[in]     fw          true = firmware load
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * This is used to load images via the SECO. Examples include SECO
 * Firmware and IVT/CSF data used for authentication. These are usually
 * loaded into SECO TCM. \a addr_src is in secure memory.
 */
sc_err_t sc_misc_seco_image_load(sc_ipc_t ipc, uint32_t addr_src,
    uint32_t addr_dst, uint32_t len, bool fw);

/*!
 * This function is used to authenticate a SECO image or command.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     cmd         authenticate command
 * @param[in]     addr_meta   address of metadata
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * This is used to authenticate a SECO image or issue a security
 * command. \a addr_meta often points to an IVT in SECO TCM.
 */
sc_err_t sc_misc_seco_authenticate(sc_ipc_t ipc,
    sc_misc_seco_auth_cmd_t cmd, uint32_t addr_meta);

/* @} */

/*!
 * @name Debug Functions
 * @{
 */

/*!
 * This function is used output a debug character from the SCU UART.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     ch          character to output
 */
void sc_misc_debug_out(sc_ipc_t ipc, uint8_t ch);

/*!
 * This function starts/stops emulation waveform capture.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     enable      flag to enable/disable capture
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_ERR_UNAVAILABLE if not running on emulation
 */
sc_err_t sc_misc_waveform_capture(sc_ipc_t ipc, bool enable);

/*!
 * This function is used to return the SCFW build info.
 *
 * @param[in]     ipc         IPC handle
 * @param[out]    build       pointer to return build number
 * @param[out]    commit      pointer to return commit ID (git SHA-1)
 */
void sc_misc_build_info(sc_ipc_t ipc, uint32_t *build,
    uint32_t *commit);

/* @} */

/*!
 * @name Other Functions
 * @{
 */

/*!
 * This function configures the ARI match value for PCIe/SATA resources.
 *
 * @param[in]     ipc          IPC handle
 * @param[in]     resource     match resource
 * @param[in]     resource_mst PCIe/SATA master to match
 * @param[in]     ari          ARI to match
 * @param[in]     enable       enable match or not
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_PARM if arguments out of range or invalid,
 * - SC_ERR_NOACCESS if caller's partition is not the owner or parent
 *   of the owner of the resource and translation
 *
 * For PCIe, the ARI is the 16-bit value that includes the bus number,
 * device number, and function number. For SATA, this value includes the
 * FISType and PM_Port.
 */
sc_err_t sc_misc_set_ari(sc_ipc_t ipc, sc_rsrc_t resource,
    sc_rsrc_t resource_mst, uint16_t ari, bool enable);

/*!
 * This function reports boot status.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     status      boot status
 *
 * This is used by SW partitions to report status of boot. This is
 * normally used to report a boot failure.
 */
void sc_misc_boot_status(sc_ipc_t ipc, sc_misc_boot_status_t status);

/*!
 * This function tells the SCFW that a CPU is done booting.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     cpu         CPU that is done booting
 *
 * This is called by early booting CPUs to report they are done with
 * initialization. After starting early CPUs, the SCFW halts the
 * booting process until they are done. During this time, early
 * CPUs can call the SCFW with lower latency as the SCFW is idle.
 *
 * @return Returns an error code (SC_ERR_NONE = success).
 *
 * Return errors:
 * - SC_PARM if arguments out of range or invalid,
 * - SC_ERR_NOACCESS if caller's partition is not the CPU owner
 */
sc_err_t sc_misc_boot_done(sc_ipc_t ipc, sc_rsrc_t cpu);

/*!
 * This function reads a given fuse word index.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     word        fuse word index
 * @param[out]    val         fuse read value
 *
 * @return Returns and error code (SC_ERR_NONE = success).
 *
 * Return errors codes:
 * - SC_ERR_PARM if word fuse index param out of range or invalid
 * - SC_ERR_NOACCESS if read operation fail
 * - SC_ERR_LOCKED if read operation is locked
 */
sc_err_t sc_misc_otp_fuse_read(sc_ipc_t ipc, uint32_t word, uint32_t *val);

/*!
 * This function sets a temp sensor alarm.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    resource with sensor
 * @param[in]     temp        alarm to set
 * @param[in]     celsius     whole part of temp to set
 * @param[in]     tenths      fractional part of temp to set
 *
 * @return Returns and error code (SC_ERR_NONE = success).
 *
 * Return errors codes:
 * - SC_ERR_PARM if parameters invalid
 */
sc_err_t sc_misc_set_temp(sc_ipc_t ipc, sc_rsrc_t resource,
    sc_misc_temp_t temp, int16_t celsius, int8_t tenths);

/*!
 * This function gets a temp sensor value.
 *
 * @param[in]     ipc         IPC handle
 * @param[in]     resource    resource with sensor
 * @param[in]     temp        value to get (sensor or alarm)
 * @param[out]    celsius     whole part of temp to get
 * @param[out]    tenths      fractional part of temp to get
 *
 * @return Returns and error code (SC_ERR_NONE = success).
 *
 * Return errors codes:
 * - SC_ERR_PARM if parameters invalid
 */
sc_err_t sc_misc_get_temp(sc_ipc_t ipc, sc_rsrc_t resource,
    sc_misc_temp_t temp, int16_t *celsius, int8_t *tenths);

/*!
 * This function returns the boot device.
 *
 * @param[in]     ipc         IPC handle
 * @param[out]    dev         pointer to return boot device
 */
void sc_misc_get_boot_dev(sc_ipc_t ipc, sc_rsrc_t *dev);

/* @} */

#endif /* _SC_MISC_API_H */

/**@}*/