// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
* Copyright 2013 - 2016 Freescale Semiconductor Inc .
*
*/
#include <linux/kernel.h>
#include <linux/fsl/mc.h>
#include "fsl-mc-private.h"
/**
* dpbp_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_ '
* @ dpbp_id : DPBP 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 dpbp_create function .
* This function returns a unique authentication token ,
* associated with the specific object ID and the specific MC
* portal ; this token must be used in all subsequent commands for
* this specific object
*
* Return : ' 0 ' on Success ; Error code otherwise .
*/
int dpbp_open(struct fsl_mc_io *mc_io,
u32 cmd_flags,
int dpbp_id,
u16 *token)
{
struct fsl_mc_command cmd = { 0 };
struct dpbp_cmd_open *cmd_params;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_OPEN,
cmd_flags, 0 );
cmd_params = (struct dpbp_cmd_open *)cmd.params;
cmd_params->dpbp_id = cpu_to_le32(dpbp_id);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
*token = mc_cmd_hdr_read_token(&cmd);
return err;
}
EXPORT_SYMBOL_GPL(dpbp_open);
/**
* dpbp_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 DPBP object
*
* After this function is called , no further operations are
* allowed on the object without opening a new control session .
*
* Return : ' 0 ' on Success ; Error code otherwise .
*/
int dpbp_close(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token)
{
struct fsl_mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLOSE, cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
EXPORT_SYMBOL_GPL(dpbp_close);
/**
* dpbp_enable ( ) - Enable the DPBP .
* @ mc_io : Pointer to MC portal ' s I / O object
* @ cmd_flags : Command flags ; one or more of ' MC_CMD_FLAG_ '
* @ token : Token of DPBP object
*
* Return : ' 0 ' on Success ; Error code otherwise .
*/
int dpbp_enable(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token)
{
struct fsl_mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_ENABLE, cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
EXPORT_SYMBOL_GPL(dpbp_enable);
/**
* dpbp_disable ( ) - Disable the DPBP .
* @ mc_io : Pointer to MC portal ' s I / O object
* @ cmd_flags : Command flags ; one or more of ' MC_CMD_FLAG_ '
* @ token : Token of DPBP object
*
* Return : ' 0 ' on Success ; Error code otherwise .
*/
int dpbp_disable(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token)
{
struct fsl_mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_DISABLE,
cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
EXPORT_SYMBOL_GPL(dpbp_disable);
/**
* dpbp_reset ( ) - Reset the DPBP , 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 DPBP object
*
* Return : ' 0 ' on Success ; Error code otherwise .
*/
int dpbp_reset(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token)
{
struct fsl_mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_RESET,
cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
EXPORT_SYMBOL_GPL(dpbp_reset);
/**
* dpbp_get_attributes - Retrieve DPBP 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 DPBP object
* @ attr : Returned object ' s attributes
*
* Return : ' 0 ' on Success ; Error code otherwise .
*/
int dpbp_get_attributes(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
struct dpbp_attr *attr)
{
struct fsl_mc_command cmd = { 0 };
struct dpbp_rsp_get_attributes *rsp_params;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_ATTR,
cmd_flags, token);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
rsp_params = (struct dpbp_rsp_get_attributes *)cmd.params;
attr->bpid = le16_to_cpu(rsp_params->bpid);
attr->id = le32_to_cpu(rsp_params->id);
return 0 ;
}
EXPORT_SYMBOL_GPL(dpbp_get_attributes);
Messung V0.5 in Prozent C=94 H=93 G=93
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-28)
¤
*© Formatika GbR, Deutschland