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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2013-2016 Freescale Semiconductor, Inc.
* Copyright 2017, 2023 NXP
*/
#include <fsl-mc/fsl_mc_sys.h>
#include <fsl-mc/fsl_mc_cmd.h>
#include <fsl-mc/fsl_dpio.h>
/**
* 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, u32 cmd_flags, int dpio_id,
u16 *token)
{
struct dpio_cmd_open *cmd_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPIO_CMDID_OPEN,
cmd_flags,
0);
cmd_params = (struct dpio_cmd_open *)cmd.params;
cmd_params->dpio_id = cpu_to_le32(dpio_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;
}
/**
* 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, u32 cmd_flags, u16 token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPIO_CMDID_CLOSE,
cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* 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, u16 dprc_token, u32 cmd_flags,
const struct dpio_cfg *cfg, u32 *obj_id)
{
struct dpio_cmd_create *cmd_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPIO_CMDID_CREATE,
cmd_flags,
dprc_token);
cmd_params = (struct dpio_cmd_create *)cmd.params;
cmd_params->num_priorities = cfg->num_priorities;
dpio_set_field(cmd_params->channel_mode,
CHANNEL_MODE,
cfg->channel_mode);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
*obj_id = mc_cmd_read_object_id(&cmd);
return 0;
}
/**
* 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, u16 dprc_token, u32 cmd_flags,
u32 object_id)
{
struct dpio_cmd_destroy *cmd_params;
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPIO_CMDID_DESTROY,
cmd_flags,
dprc_token);
/* set object id to destroy */
cmd_params = (struct dpio_cmd_destroy *)cmd.params;
cmd_params->dpio_id = cpu_to_le32(object_id);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* 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, u32 cmd_flags, u16 token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPIO_CMDID_ENABLE,
cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* 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, u32 cmd_flags, u16 token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPIO_CMDID_DISABLE,
cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* 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, u32 cmd_flags, u16 token,
struct dpio_attr *attr)
{
struct dpio_rsp_get_attr *rsp_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPIO_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 dpio_rsp_get_attr *)cmd.params;
attr->id = le32_to_cpu(rsp_params->id);
attr->qbman_portal_id = le16_to_cpu(rsp_params->qbman_portal_id);
attr->num_priorities = rsp_params->num_priorities;
attr->qbman_portal_ce_offset = le64_to_cpu(rsp_params->qbman_portal_ce_offset);
attr->qbman_portal_ci_offset = le64_to_cpu(rsp_params->qbman_portal_ci_offset);
attr->qbman_version = le32_to_cpu(rsp_params->qbman_version);
attr->clk = le32_to_cpu(rsp_params->clk);
attr->channel_mode = dpio_get_field(rsp_params->channel_mode, ATTR_CHANNEL_MODE);
return 0;
}
/**
* 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, u32 cmd_flags,
u16 *major_ver, u16 *minor_ver)
{
struct mc_command cmd = { 0 };
int err;
cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_API_VERSION,
cmd_flags,
0);
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
return 0;
}
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