84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
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/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
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/*
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* Copyright 2013-2016 Freescale Semiconductor Inc.
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* Copyright 2016 NXP
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*
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*/
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#ifndef __FSL_DPIO_H
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#define __FSL_DPIO_H
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struct fsl_mc_io;
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int dpio_open(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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int dpio_id,
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u16 *token);
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int dpio_close(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token);
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/**
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* enum dpio_channel_mode - DPIO notification channel mode
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* @DPIO_NO_CHANNEL: No support for notification channel
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* @DPIO_LOCAL_CHANNEL: Notifications on data availability can be received by a
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* dedicated channel in the DPIO; user should point the queue's
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* destination in the relevant interface to this DPIO
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*/
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enum dpio_channel_mode {
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DPIO_NO_CHANNEL = 0,
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DPIO_LOCAL_CHANNEL = 1,
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};
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/**
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* struct dpio_cfg - Structure representing DPIO configuration
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* @channel_mode: Notification channel mode
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* @num_priorities: Number of priorities for the notification channel (1-8);
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* relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
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*/
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struct dpio_cfg {
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enum dpio_channel_mode channel_mode;
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u8 num_priorities;
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};
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int dpio_enable(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token);
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int dpio_disable(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token);
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/**
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* struct dpio_attr - Structure representing DPIO attributes
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* @id: DPIO object ID
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* @qbman_portal_ce_offset: offset of the software portal cache-enabled area
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* @qbman_portal_ci_offset: offset of the software portal cache-inhibited area
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* @qbman_portal_id: Software portal ID
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* @channel_mode: Notification channel mode
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* @num_priorities: Number of priorities for the notification channel (1-8);
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* relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
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* @qbman_version: QBMAN version
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*/
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struct dpio_attr {
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int id;
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u64 qbman_portal_ce_offset;
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u64 qbman_portal_ci_offset;
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u16 qbman_portal_id;
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enum dpio_channel_mode channel_mode;
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u8 num_priorities;
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u32 qbman_version;
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};
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int dpio_get_attributes(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token,
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struct dpio_attr *attr);
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int dpio_get_api_version(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 *major_ver,
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u16 *minor_ver);
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#endif /* __FSL_DPIO_H */
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