// 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"
/**
* dpcon_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_ '
* @ dpcon_id : DPCON 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 dpcon_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 dpcon_open(struct fsl_mc_io *mc_io,
u32 cmd_flags,
int dpcon_id,
u16 *token)
{
struct fsl_mc_command cmd = { 0 };
struct dpcon_cmd_open *dpcon_cmd;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCON_CMDID_OPEN,
cmd_flags,
0 );
dpcon_cmd = (struct dpcon_cmd_open *)cmd.params;
dpcon_cmd->dpcon_id = cpu_to_le32(dpcon_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 0 ;
}
EXPORT_SYMBOL_GPL(dpcon_open);
/**
* dpcon_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 DPCON 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 dpcon_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(DPCON_CMDID_CLOSE,
cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
EXPORT_SYMBOL_GPL(dpcon_close);
/**
* dpcon_enable ( ) - Enable the DPCON
* @ mc_io : Pointer to MC portal ' s I / O object
* @ cmd_flags : Command flags ; one or more of ' MC_CMD_FLAG_ '
* @ token : Token of DPCON object
*
* Return : ' 0 ' on Success ; Error code otherwise
*/
int dpcon_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(DPCON_CMDID_ENABLE,
cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
EXPORT_SYMBOL_GPL(dpcon_enable);
/**
* dpcon_disable ( ) - Disable the DPCON
* @ mc_io : Pointer to MC portal ' s I / O object
* @ cmd_flags : Command flags ; one or more of ' MC_CMD_FLAG_ '
* @ token : Token of DPCON object
*
* Return : ' 0 ' on Success ; Error code otherwise
*/
int dpcon_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(DPCON_CMDID_DISABLE,
cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
EXPORT_SYMBOL_GPL(dpcon_disable);
/**
* dpcon_reset ( ) - Reset the DPCON , 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 DPCON object
*
* Return : ' 0 ' on Success ; Error code otherwise .
*/
int dpcon_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(DPCON_CMDID_RESET,
cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
EXPORT_SYMBOL_GPL(dpcon_reset);
/**
* dpcon_get_attributes ( ) - Retrieve DPCON 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 DPCON object
* @ attr : Object ' s attributes
*
* Return : ' 0 ' on Success ; Error code otherwise .
*/
int dpcon_get_attributes(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
struct dpcon_attr *attr)
{
struct fsl_mc_command cmd = { 0 };
struct dpcon_rsp_get_attr *dpcon_rsp;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCON_CMDID_GET_ATTR,
cmd_flags,
token);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
dpcon_rsp = (struct dpcon_rsp_get_attr *)cmd.params;
attr->id = le32_to_cpu(dpcon_rsp->id);
attr->qbman_ch_id = le16_to_cpu(dpcon_rsp->qbman_ch_id);
attr->num_priorities = dpcon_rsp->num_priorities;
return 0 ;
}
EXPORT_SYMBOL_GPL(dpcon_get_attributes);
/**
* dpcon_set_notification ( ) - Set DPCON notification 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 DPCON object
* @ cfg : Notification parameters
*
* Return : ' 0 ' on Success ; Error code otherwise
*/
int dpcon_set_notification(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
struct dpcon_notification_cfg *cfg)
{
struct fsl_mc_command cmd = { 0 };
struct dpcon_cmd_set_notification *dpcon_cmd;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCON_CMDID_SET_NOTIFICATION,
cmd_flags,
token);
dpcon_cmd = (struct dpcon_cmd_set_notification *)cmd.params;
dpcon_cmd->dpio_id = cpu_to_le32(cfg->dpio_id);
dpcon_cmd->priority = cfg->priority;
dpcon_cmd->user_ctx = cpu_to_le64(cfg->user_ctx);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
EXPORT_SYMBOL_GPL(dpcon_set_notification);
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