577 lines
19 KiB
C
577 lines
19 KiB
C
/*
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* Copyright (C) 2016 Freescale Semiconductor, Inc.
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* Copyright 2017-2018 NXP
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*!
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* Header file containing the public API for the System Controller (SC)
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* Pad Control (PAD) function.
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*
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* @addtogroup PAD_SVC (SVC) Pad Service
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*
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* Module for the Pad Control (PAD) service.
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*
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* @details
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*
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* Pad configuration is managed by SC firmware. The pad configuration
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* features supported by the SC firmware include:
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*
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* - Configuring the mux, input/output connection, and low-power isolation
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mode.
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* - Configuring the technology-specific pad setting such as drive strength,
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* pullup/pulldown, etc.
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* - Configuring compensation for pad groups with dual voltage capability.
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*
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* Pad functions fall into one of three categories. Generic functions are
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* common to all SoCs and all process technologies. SoC functions are raw
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* low-level functions. Technology-specific functions are specific to the
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* process technology.
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*
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* The list of pads is SoC specific. Refer to the SoC [Pad List](@ref PADS)
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* for valid pad values. Note that all pads exist on a die but may or
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* may not be brought out by the specific package. Mapping of pads to
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* package pins/balls is documented in the associated Data Sheet. Some pads
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* may not be brought out because the part (die+package) is defeatured and
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* some pads may connect to the substrate in the package.
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*
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* Some pads (SC_P_COMP_*) that can be specified are not individual pads
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* but are in fact pad groups. These groups have additional configuration
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* that can be done using the sc_pad_set_gp_28fdsoi_comp() function. More
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* info on these can be found in the associated Reference Manual.
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*
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* Pads are managed as a resource by the Resource Manager (RM). They have
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* assigned owners and only the owners can configure the pads. Some of the
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* pads are reserved for use by the SCFW itself and this can be overriden
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* with the implementation of board_config_sc(). Additionally, pads may
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* be assigned to various other partitions via the implementation of
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* board_system_config().
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*
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* Note muxing two input pads to the same IP functional signal will
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* result in undefined behavior.
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*
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* @includedoc pad/details.dox
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*
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* @{
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*/
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#ifndef SC_PAD_API_H
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#define SC_PAD_API_H
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/* Includes */
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#include <soc/imx8/sc/types.h>
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#include <soc/imx8/sc/svc/rm/api.h>
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/* Defines */
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/*!
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* @name Defines for type widths
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*/
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/*@{*/
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#define SC_PAD_MUX_W 3U /* Width of mux parameter */
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/*@}*/
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/*!
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* @name Defines for sc_pad_config_t
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*/
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/*@{*/
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#define SC_PAD_CONFIG_NORMAL 0U /* Normal */
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#define SC_PAD_CONFIG_OD 1U /* Open Drain */
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#define SC_PAD_CONFIG_OD_IN 2U /* Open Drain and input */
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#define SC_PAD_CONFIG_OUT_IN 3U /* Output and input */
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/*@}*/
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/*!
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* @name Defines for sc_pad_iso_t
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*/
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/*@{*/
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#define SC_PAD_ISO_OFF 0U /* ISO latch is transparent */
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#define SC_PAD_ISO_EARLY 1U /* Follow EARLY_ISO */
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#define SC_PAD_ISO_LATE 2U /* Follow LATE_ISO */
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#define SC_PAD_ISO_ON 3U /* ISO latched data is held */
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/*@}*/
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/*!
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* @name Defines for sc_pad_28fdsoi_dse_t
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*/
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/*@{*/
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#define SC_PAD_28FDSOI_DSE_18V_1MA 0U /* Drive strength of 1mA for 1.8v */
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#define SC_PAD_28FDSOI_DSE_18V_2MA 1U /* Drive strength of 2mA for 1.8v */
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#define SC_PAD_28FDSOI_DSE_18V_4MA 2U /* Drive strength of 4mA for 1.8v */
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#define SC_PAD_28FDSOI_DSE_18V_6MA 3U /* Drive strength of 6mA for 1.8v */
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#define SC_PAD_28FDSOI_DSE_18V_8MA 4U /* Drive strength of 8mA for 1.8v */
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#define SC_PAD_28FDSOI_DSE_18V_10MA 5U /* Drive strength of 10mA for 1.8v */
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#define SC_PAD_28FDSOI_DSE_18V_12MA 6U /* Drive strength of 12mA for 1.8v */
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#define SC_PAD_28FDSOI_DSE_18V_HS 7U /* High-speed drive strength for 1.8v */
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#define SC_PAD_28FDSOI_DSE_33V_2MA 0U /* Drive strength of 2mA for 3.3v */
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#define SC_PAD_28FDSOI_DSE_33V_4MA 1U /* Drive strength of 4mA for 3.3v */
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#define SC_PAD_28FDSOI_DSE_33V_8MA 2U /* Drive strength of 8mA for 3.3v */
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#define SC_PAD_28FDSOI_DSE_33V_12MA 3U /* Drive strength of 12mA for 3.3v */
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#define SC_PAD_28FDSOI_DSE_DV_HIGH 0U /* High drive strength for dual volt */
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#define SC_PAD_28FDSOI_DSE_DV_LOW 1U /* Low drive strength for dual volt */
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/*@}*/
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/*!
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* @name Defines for sc_pad_28fdsoi_ps_t
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*/
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/*@{*/
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#define SC_PAD_28FDSOI_PS_KEEPER 0U /* Bus-keeper (only valid for 1.8v) */
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#define SC_PAD_28FDSOI_PS_PU 1U /* Pull-up */
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#define SC_PAD_28FDSOI_PS_PD 2U /* Pull-down */
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#define SC_PAD_28FDSOI_PS_NONE 3U /* No pull (disabled) */
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/*@}*/
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/*!
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* @name Defines for sc_pad_28fdsoi_pus_t
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*/
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/*@{*/
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#define SC_PAD_28FDSOI_PUS_30K_PD 0U /* 30K pull-down */
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#define SC_PAD_28FDSOI_PUS_100K_PU 1U /* 100K pull-up */
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#define SC_PAD_28FDSOI_PUS_3K_PU 2U /* 3K pull-up */
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#define SC_PAD_28FDSOI_PUS_30K_PU 3U /* 30K pull-up */
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/*@}*/
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/*!
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* @name Defines for sc_pad_wakeup_t
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*/
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/*@{*/
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#define SC_PAD_WAKEUP_OFF 0U /* Off */
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#define SC_PAD_WAKEUP_CLEAR 1U /* Clears pending flag */
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#define SC_PAD_WAKEUP_LOW_LVL 4U /* Low level */
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#define SC_PAD_WAKEUP_FALL_EDGE 5U /* Falling edge */
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#define SC_PAD_WAKEUP_RISE_EDGE 6U /* Rising edge */
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#define SC_PAD_WAKEUP_HIGH_LVL 7U /* High-level */
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/*@}*/
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/* Types */
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/*!
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* This type is used to declare a pad config. It determines how the
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* output data is driven, pull-up is controlled, and input signal is
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* connected. Normal and OD are typical and only connect the input
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* when the output is not driven. The IN options are less common and
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* force an input connection even when driving the output.
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*/
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typedef uint8_t sc_pad_config_t;
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/*!
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* This type is used to declare a pad low-power isolation config.
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* ISO_LATE is the most common setting. ISO_EARLY is only used when
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* an output pad is directly determined by another input pad. The
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* other two are only used when SW wants to directly contol isolation.
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*/
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typedef uint8_t sc_pad_iso_t;
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/*!
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* This type is used to declare a drive strength. Note it is specific
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* to 28FDSOI. Also note that valid values depend on the pad type.
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*/
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typedef uint8_t sc_pad_28fdsoi_dse_t;
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/*!
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* This type is used to declare a pull select. Note it is specific
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* to 28FDSOI.
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*/
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typedef uint8_t sc_pad_28fdsoi_ps_t;
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/*!
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* This type is used to declare a pull-up select. Note it is specific
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* to 28FDSOI HSIC pads.
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*/
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typedef uint8_t sc_pad_28fdsoi_pus_t;
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/*!
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* This type is used to declare a wakeup mode of a pad.
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*/
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typedef uint8_t sc_pad_wakeup_t;
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/* Functions */
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/*!
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* @name Generic Functions
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* @{
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*/
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/*!
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* This function configures the mux settings for a pad. This includes
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* the signal mux, pad config, and low-power isolation mode.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to configure
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* @param[in] mux mux setting
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* @param[in] config pad config
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* @param[in] iso low-power isolation mode
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner
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*
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* Note muxing two input pads to the same IP functional signal will
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* result in undefined behavior.
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_set_mux(sc_ipc_t ipc, sc_pad_t pad,
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uint8_t mux, sc_pad_config_t config, sc_pad_iso_t iso);
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/*!
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* This function gets the mux settings for a pad. This includes
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* the signal mux, pad config, and low-power isolation mode.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to query
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* @param[out] mux pointer to return mux setting
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* @param[out] config pointer to return pad config
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* @param[out] iso pointer to return low-power isolation mode
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_get_mux(sc_ipc_t ipc, sc_pad_t pad,
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uint8_t *mux, sc_pad_config_t *config,
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sc_pad_iso_t *iso);
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/*!
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* This function configures the general purpose pad control. This
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* is technology dependent and includes things like drive strength,
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* slew rate, pull up/down, etc. Refer to the SoC Reference Manual
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* for bit field details.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to configure
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* @param[in] ctrl control value to set
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_set_gp(sc_ipc_t ipc, sc_pad_t pad, uint32_t ctrl);
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/*!
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* This function gets the general purpose pad control. This
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* is technology dependent and includes things like drive strength,
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* slew rate, pull up/down, etc. Refer to the SoC Reference Manual
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* for bit field details.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to query
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* @param[out] ctrl pointer to return control value
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_get_gp(sc_ipc_t ipc, sc_pad_t pad, uint32_t *ctrl);
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/*!
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* This function configures the wakeup mode of the pad.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to configure
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* @param[in] wakeup wakeup to set
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_set_wakeup(sc_ipc_t ipc, sc_pad_t pad, sc_pad_wakeup_t wakeup);
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/*!
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* This function gets the wakeup mode of a pad.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to query
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* @param[out] wakeup pointer to return wakeup
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_get_wakeup(sc_ipc_t ipc, sc_pad_t pad, sc_pad_wakeup_t *wakeup);
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/*!
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* This function configures a pad.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to configure
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* @param[in] mux mux setting
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* @param[in] config pad config
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* @param[in] iso low-power isolation mode
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* @param[in] ctrl control value
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* @param[in] wakeup wakeup to set
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*
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* @see sc_pad_set_mux().
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* @see sc_pad_set_gp().
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Note muxing two input pads to the same IP functional signal will
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* result in undefined behavior.
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_set_all(sc_ipc_t ipc, sc_pad_t pad, uint8_t mux,
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sc_pad_config_t config, sc_pad_iso_t iso, uint32_t ctrl,
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sc_pad_wakeup_t wakeup);
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/*!
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* This function gets a pad's config.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to query
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* @param[out] mux pointer to return mux setting
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* @param[out] config pointer to return pad config
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* @param[out] iso pointer to return low-power isolation mode
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* @param[out] ctrl pointer to return control value
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* @param[out] wakeup pointer to return wakeup to set
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*
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* @see sc_pad_set_mux().
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* @see sc_pad_set_gp().
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_get_all(sc_ipc_t ipc, sc_pad_t pad, uint8_t *mux,
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sc_pad_config_t *config, sc_pad_iso_t *iso,
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uint32_t *ctrl, sc_pad_wakeup_t *wakeup);
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/* @} */
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/*!
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* @name SoC Specific Functions
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* @{
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*/
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/*!
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* This function configures the settings for a pad. This setting is SoC
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* specific.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to configure
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* @param[in] val value to set
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_set(sc_ipc_t ipc, sc_pad_t pad, uint32_t val);
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/*!
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* This function gets the settings for a pad. This setting is SoC
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* specific.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to query
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* @param[out] val pointer to return setting
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_get(sc_ipc_t ipc, sc_pad_t pad, uint32_t *val);
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/* @} */
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/*!
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* @name Technology Specific Functions
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* @{
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*/
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/*!
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* This function configures the pad control specific to 28FDSOI.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to configure
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* @param[in] dse drive strength
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* @param[in] ps pull select
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner,
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* - SC_ERR_UNAVAILABLE if process not applicable
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_set_gp_28fdsoi(sc_ipc_t ipc, sc_pad_t pad,
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sc_pad_28fdsoi_dse_t dse,
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sc_pad_28fdsoi_ps_t ps);
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/*!
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* This function gets the pad control specific to 28FDSOI.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to query
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* @param[out] dse pointer to return drive strength
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* @param[out] ps pointer to return pull select
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner,
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* - SC_ERR_UNAVAILABLE if process not applicable
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_get_gp_28fdsoi(sc_ipc_t ipc, sc_pad_t pad,
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sc_pad_28fdsoi_dse_t *dse,
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sc_pad_28fdsoi_ps_t *ps);
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/*!
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* This function configures the pad control specific to 28FDSOI.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to configure
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* @param[in] dse drive strength
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* @param[in] hys hysteresis
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* @param[in] pus pull-up select
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* @param[in] pke pull keeper enable
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* @param[in] pue pull-up enable
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*
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* @return Returns an error code (SC_ERR_NONE = success).
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*
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* Return errors:
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* - SC_PARM if arguments out of range or invalid,
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* - SC_ERR_NOACCESS if caller's partition is not the pad owner,
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* - SC_ERR_UNAVAILABLE if process not applicable
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*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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*/
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sc_err_t sc_pad_set_gp_28fdsoi_hsic(sc_ipc_t ipc, sc_pad_t pad,
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sc_pad_28fdsoi_dse_t dse, sc_bool_t hys,
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sc_pad_28fdsoi_pus_t pus, sc_bool_t pke,
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sc_bool_t pue);
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/*!
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* This function gets the pad control specific to 28FDSOI.
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*
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* @param[in] ipc IPC handle
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* @param[in] pad pad to query
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* @param[out] dse pointer to return drive strength
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* @param[out] hys pointer to return hysteresis
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* @param[out] pus pointer to return pull-up select
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* @param[out] pke pointer to return pull keeper enable
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* @param[out] pue pointer to return pull-up enable
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|
*
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|
* @return Returns an error code (SC_ERR_NONE = success).
|
|
*
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* Return errors:
|
|
* - SC_PARM if arguments out of range or invalid,
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|
* - SC_ERR_NOACCESS if caller's partition is not the pad owner,
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|
* - SC_ERR_UNAVAILABLE if process not applicable
|
|
*
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* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
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|
*/
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sc_err_t sc_pad_get_gp_28fdsoi_hsic(sc_ipc_t ipc, sc_pad_t pad,
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sc_pad_28fdsoi_dse_t *dse, sc_bool_t *hys,
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sc_pad_28fdsoi_pus_t *pus, sc_bool_t *pke,
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|
sc_bool_t *pue);
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|
|
|
/*!
|
|
* This function configures the compensation control specific to 28FDSOI.
|
|
*
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|
* @param[in] ipc IPC handle
|
|
* @param[in] pad pad to configure
|
|
* @param[in] compen compensation/freeze mode
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|
* @param[in] fastfrz fast freeze
|
|
* @param[in] rasrcp compensation code for PMOS
|
|
* @param[in] rasrcn compensation code for NMOS
|
|
* @param[in] nasrc_sel NASRC read select
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|
* @param[in] psw_ovr 2.5v override
|
|
*
|
|
* @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 pad owner,
|
|
* - SC_ERR_UNAVAILABLE if process not applicable
|
|
*
|
|
* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
|
|
*
|
|
* Note \a psw_ovr is only applicable to pads supporting 2.5 volt
|
|
* operation (e.g. some Ethernet pads).
|
|
*/
|
|
sc_err_t sc_pad_set_gp_28fdsoi_comp(sc_ipc_t ipc, sc_pad_t pad,
|
|
uint8_t compen, sc_bool_t fastfrz,
|
|
uint8_t rasrcp, uint8_t rasrcn,
|
|
sc_bool_t nasrc_sel, sc_bool_t psw_ovr);
|
|
|
|
/*!
|
|
* This function gets the compensation control specific to 28FDSOI.
|
|
*
|
|
* @param[in] ipc IPC handle
|
|
* @param[in] pad pad to query
|
|
* @param[out] compen pointer to return compensation/freeze mode
|
|
* @param[out] fastfrz pointer to return fast freeze
|
|
* @param[out] rasrcp pointer to return compensation code for PMOS
|
|
* @param[out] rasrcn pointer to return compensation code for NMOS
|
|
* @param[out] nasrc_sel pointer to return NASRC read select
|
|
* @param[out] compok pointer to return compensation status
|
|
* @param[out] nasrc pointer to return NASRCP/NASRCN
|
|
* @param[out] psw_ovr pointer to return the 2.5v override
|
|
*
|
|
* @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 pad owner,
|
|
* - SC_ERR_UNAVAILABLE if process not applicable
|
|
*
|
|
* Refer to the SoC [Pad List](@ref PADS) for valid pad values.
|
|
*/
|
|
sc_err_t sc_pad_get_gp_28fdsoi_comp(sc_ipc_t ipc, sc_pad_t pad,
|
|
uint8_t *compen, sc_bool_t *fastfrz,
|
|
uint8_t *rasrcp, uint8_t *rasrcn,
|
|
sc_bool_t *nasrc_sel, sc_bool_t *compok,
|
|
uint8_t *nasrc, sc_bool_t *psw_ovr);
|
|
|
|
/* @} */
|
|
|
|
#endif /* SC_PAD_API_H */
|
|
|
|
/**@}*/
|