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/*
* Qualcomm Peripheral Image Loader helpers
*
* Copyright (C) 2016 Linaro Ltd
* Copyright (C) 2015 Sony Mobile Communications Inc
* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/firmware.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/remoteproc.h>
#include <linux/rpmsg/qcom_glink.h>
#include <linux/rpmsg/qcom_smd.h>
#include "remoteproc_internal.h"
#include "qcom_common.h"
#define to_glink_subdev(d) container_of(d, struct qcom_rproc_glink, subdev)
#define to_smd_subdev(d) container_of(d, struct qcom_rproc_subdev, subdev)
/**
* qcom_mdt_find_rsc_table() - provide dummy resource table for remoteproc
* @rproc: remoteproc handle
* @fw: firmware header
* @tablesz: outgoing size of the table
*
* Returns a dummy table.
*/
struct resource_table *qcom_mdt_find_rsc_table(struct rproc *rproc,
const struct firmware *fw,
int *tablesz)
{
static struct resource_table table = { .ver = 1, };
*tablesz = sizeof(table);
return &table;
}
EXPORT_SYMBOL_GPL(qcom_mdt_find_rsc_table);
static int glink_subdev_probe(struct rproc_subdev *subdev)
{
struct qcom_rproc_glink *glink = to_glink_subdev(subdev);
glink->edge = qcom_glink_smem_register(glink->dev, glink->node);
return IS_ERR(glink->edge) ? PTR_ERR(glink->edge) : 0;
}
static void glink_subdev_remove(struct rproc_subdev *subdev)
{
struct qcom_rproc_glink *glink = to_glink_subdev(subdev);
qcom_glink_smem_unregister(glink->edge);
glink->edge = NULL;
}
/**
* qcom_add_glink_subdev() - try to add a GLINK subdevice to rproc
* @rproc: rproc handle to parent the subdevice
* @glink: reference to a GLINK subdev context
*/
void qcom_add_glink_subdev(struct rproc *rproc, struct qcom_rproc_glink *glink)
{
struct device *dev = &rproc->dev;
glink->node = of_get_child_by_name(dev->parent->of_node, "glink-edge");
if (!glink->node)
return;
glink->dev = dev;
rproc_add_subdev(rproc, &glink->subdev, glink_subdev_probe, glink_subdev_remove);
}
EXPORT_SYMBOL_GPL(qcom_add_glink_subdev);
/**
* qcom_remove_glink_subdev() - remove a GLINK subdevice from rproc
* @rproc: rproc handle
* @glink: reference to a GLINK subdev context
*/
void qcom_remove_glink_subdev(struct rproc *rproc, struct qcom_rproc_glink *glink)
{
rproc_remove_subdev(rproc, &glink->subdev);
of_node_put(glink->node);
}
EXPORT_SYMBOL_GPL(qcom_remove_glink_subdev);
static int smd_subdev_probe(struct rproc_subdev *subdev)
{
struct qcom_rproc_subdev *smd = to_smd_subdev(subdev);
smd->edge = qcom_smd_register_edge(smd->dev, smd->node);
return IS_ERR(smd->edge) ? PTR_ERR(smd->edge) : 0;
}
static void smd_subdev_remove(struct rproc_subdev *subdev)
{
struct qcom_rproc_subdev *smd = to_smd_subdev(subdev);
qcom_smd_unregister_edge(smd->edge);
smd->edge = NULL;
}
/**
* qcom_add_smd_subdev() - try to add a SMD subdevice to rproc
* @rproc: rproc handle to parent the subdevice
* @smd: reference to a Qualcomm subdev context
*/
void qcom_add_smd_subdev(struct rproc *rproc, struct qcom_rproc_subdev *smd)
{
struct device *dev = &rproc->dev;
smd->node = of_get_child_by_name(dev->parent->of_node, "smd-edge");
if (!smd->node)
return;
smd->dev = dev;
rproc_add_subdev(rproc, &smd->subdev, smd_subdev_probe, smd_subdev_remove);
}
EXPORT_SYMBOL_GPL(qcom_add_smd_subdev);
/**
* qcom_remove_smd_subdev() - remove the smd subdevice from rproc
* @rproc: rproc handle
* @smd: the SMD subdevice to remove
*/
void qcom_remove_smd_subdev(struct rproc *rproc, struct qcom_rproc_subdev *smd)
{
rproc_remove_subdev(rproc, &smd->subdev);
of_node_put(smd->node);
}
EXPORT_SYMBOL_GPL(qcom_remove_smd_subdev);
MODULE_DESCRIPTION("Qualcomm Remoteproc helper driver");
MODULE_LICENSE("GPL v2");
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