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/*-
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* BSD LICENSE
*
* Copyright 2013-2016 Freescale Semiconductor Inc.
* Copyright (c) 2016 NXP.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the above-listed copyright holders nor the
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* GPL LICENSE SUMMARY
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __FSL_DPIO_H
#define __FSL_DPIO_H
/* Data Path I/O Portal API
* Contains initialization APIs and runtime control APIs for DPIO
*/
struct fsl_mc_io;
/**
* dpio_open() - Open a control session for the specified object
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @dpio_id: DPIO unique ID
* @token: Returned token; use in subsequent API calls
*
* This function can be used to open a control session for an
* already created object; an object may have been declared in
* the DPL or by calling the dpio_create() function.
* This function returns a unique authentication token,
* associated with the specific object ID and any MC portals
* assigned to the parent container; this token must be used in
* all subsequent commands for this specific object.
*
* Return: '0' on Success; Error code otherwise.
*/
int dpio_open(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
int dpio_id,
uint16_t *token);
/**
* dpio_close() - Close the control session of the object
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPIO object
*
* Return: '0' on Success; Error code otherwise.
*/
int dpio_close(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token);
/**
* enum dpio_channel_mode - DPIO notification channel mode
* @DPIO_NO_CHANNEL: No support for notification channel
* @DPIO_LOCAL_CHANNEL: Notifications on data availability can be received by a
* dedicated channel in the DPIO; user should point the queue's
* destination in the relevant interface to this DPIO
*/
enum dpio_channel_mode {
DPIO_NO_CHANNEL = 0,
DPIO_LOCAL_CHANNEL = 1,
};
/**
* struct dpio_cfg - Structure representing DPIO configuration
* @channel_mode: Notification channel mode
* @num_priorities: Number of priorities for the notification channel (1-8);
* relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
*/
struct dpio_cfg {
enum dpio_channel_mode channel_mode;
uint8_t num_priorities;
};
/**
* dpio_create() - Create the DPIO object.
* @mc_io: Pointer to MC portal's I/O object
* @dprc_token: Parent container token; '0' for default container
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @cfg: Configuration structure
* @obj_id: returned object id
*
* Create the DPIO object, allocate required resources and
* perform required initialization.
*
* The object can be created either by declaring it in the
* DPL file, or by calling this function.
*
* The function accepts an authentication token of a parent
* container that this object should be assigned to. The token
* can be '0' so the object will be assigned to the default container.
* The newly created object can be opened with the returned
* object id and using the container's associated tokens and MC portals.
*
* Return: '0' on Success; Error code otherwise.
*/
int dpio_create(struct fsl_mc_io *mc_io,
uint16_t dprc_token,
uint32_t cmd_flags,
const struct dpio_cfg *cfg,
uint32_t *obj_id);
/**
* dpio_destroy() - Destroy the DPIO object and release all its resources.
* @mc_io: Pointer to MC portal's I/O object
* @dprc_token: Parent container token; '0' for default container
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @object_id: The object id; it must be a valid id within the container that
* created this object;
*
* The function accepts the authentication token of the parent container that
* created the object (not the one that currently owns the object). The object
* is searched within parent using the provided 'object_id'.
* All tokens to the object must be closed before calling destroy.
*
* Return: '0' on Success; Error code otherwise
*/
int dpio_destroy(struct fsl_mc_io *mc_io,
uint16_t dprc_token,
uint32_t cmd_flags,
uint32_t object_id);
/**
* dpio_enable() - Enable the DPIO, allow I/O portal operations.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPIO object
*
* Return: '0' on Success; Error code otherwise
*/
int dpio_enable(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token);
/**
* dpio_disable() - Disable the DPIO, stop any I/O portal operation.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPIO object
*
* Return: '0' on Success; Error code otherwise
*/
int dpio_disable(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token);
/**
* dpio_is_enabled() - Check if the DPIO is enabled.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPIO object
* @en: Returns '1' if object is enabled; '0' otherwise
*
* Return: '0' on Success; Error code otherwise.
*/
int dpio_is_enabled(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
int *en);
/**
* dpio_reset() - Reset the DPIO, returns the object to initial state.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPIO object
*
* Return: '0' on Success; Error code otherwise.
*/
int dpio_reset(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token);
/**
* dpio_set_stashing_destination() - Set the stashing destination.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPIO object
* @sdest: stashing destination value
*
* Return: '0' on Success; Error code otherwise.
*/
int dpio_set_stashing_destination(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
uint8_t sdest);
/**
* dpio_get_stashing_destination() - Get the stashing destination..
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPIO object
* @sdest: Returns the stashing destination value
*
* Return: '0' on Success; Error code otherwise.
*/
int dpio_get_stashing_destination(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
uint8_t *sdest);
/**
* struct dpio_attr - Structure representing DPIO attributes
* @id: DPIO object ID
* @qbman_portal_ce_offset: offset of the software portal cache-enabled area
* @qbman_portal_ci_offset: offset of the software portal cache-inhibited area
* @qbman_portal_id: Software portal ID
* @channel_mode: Notification channel mode
* @num_priorities: Number of priorities for the notification channel (1-8);
* relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
* @qbman_version: QBMAN version
*/
struct dpio_attr {
int id;
uint64_t qbman_portal_ce_offset;
uint64_t qbman_portal_ci_offset;
uint16_t qbman_portal_id;
enum dpio_channel_mode channel_mode;
uint8_t num_priorities;
uint32_t qbman_version;
uint32_t clk;
};
/**
* dpio_get_attributes() - Retrieve DPIO attributes
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPIO object
* @attr: Returned object's attributes
*
* Return: '0' on Success; Error code otherwise
*/
int dpio_get_attributes(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
struct dpio_attr *attr);
/**
* dpio_get_api_version() - Get Data Path I/O API version
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @major_ver: Major version of data path i/o API
* @minor_ver: Minor version of data path i/o API
*
* Return: '0' on Success; Error code otherwise.
*/
int dpio_get_api_version(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t *major_ver,
uint16_t *minor_ver);
#endif /* __FSL_DPIO_H */
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