Release 4.16 drivers/staging/fsl-mc/include/dpcon.h

/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
/*
 * Copyright 2013-2016 Freescale Semiconductor Inc.
 *
 */
#ifndef __FSL_DPCON_H

#define __FSL_DPCON_H

/* Data Path Concentrator API
 * Contains initialization APIs and runtime control APIs for DPCON
 */

struct fsl_mc_io;

/** General DPCON macros */

/**
 * Use it to disable notifications; see dpcon_set_notification()
 */

#define DPCON_INVALID_DPIO_ID		(int)(-1)

int dpcon_open(struct fsl_mc_io *mc_io,
	       u32 cmd_flags,
	       int dpcon_id,
	       u16 *token);

int dpcon_close(struct fsl_mc_io *mc_io,
		u32 cmd_flags,
		u16 token);

int dpcon_enable(struct fsl_mc_io *mc_io,
		 u32 cmd_flags,
		 u16 token);

int dpcon_disable(struct fsl_mc_io *mc_io,
		  u32 cmd_flags,
		  u16 token);

int dpcon_reset(struct fsl_mc_io *mc_io,
		u32 cmd_flags,
		u16 token);

/**
 * struct dpcon_attr - Structure representing DPCON attributes
 * @id: DPCON object ID
 * @qbman_ch_id: Channel ID to be used by dequeue operation
 * @num_priorities: Number of priorities for the DPCON channel (1-8)
 */

struct dpcon_attr {
	
int id;
	
u16 qbman_ch_id;
	
u8 num_priorities;
};

int dpcon_get_attributes(struct fsl_mc_io *mc_io,
			 u32 cmd_flags,
			 u16 token,
			 struct dpcon_attr *attr);

/**
 * struct dpcon_notification_cfg - Structure representing notification params
 * @dpio_id:    DPIO object ID; must be configured with a notification channel;
 *      to disable notifications set it to 'DPCON_INVALID_DPIO_ID';
 * @priority:   Priority selection within the DPIO channel; valid values
 *              are 0-7, depending on the number of priorities in that channel
 * @user_ctx:   User context value provided with each CDAN message
 */

struct dpcon_notification_cfg {
	
int dpio_id;
	
u8 priority;
	
u64 user_ctx;
};

int dpcon_set_notification(struct fsl_mc_io *mc_io,
			   u32 cmd_flags,
			   u16 token,
			   struct dpcon_notification_cfg *cfg);

#endif /* __FSL_DPCON_H */
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Directory: drivers/staging/fsl-mc/include

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