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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2019-2020 Linaro Limited.
*/
#ifndef _SCMI_AGENT_UCLASS_H
#define _SCMI_AGENT_UCLASS_H
#include <scmi_protocols.h>
#include <dm/device.h>
struct scmi_msg;
struct scmi_channel;
/**
* struct scmi_agent_priv - private data maintained by agent instance
* @version: Version
* @num_agents: Number of agents
* @num_protocols: Number of protocols
* @impl_version: Implementation version
* @protocols: Array of protocol IDs
* @vendor: Vendor name
* @sub_vendor: Sub-vendor name
* @agent_name: Agent name
* @agent_id: Identifier of agent
* @base_dev: SCMI base protocol device
* @pwdom_dev: SCMI power domain management protocol device
* @clock_dev: SCMI clock protocol device
* @resetdom_dev: SCMI reset domain protocol device
* @voltagedom_dev: SCMI voltage domain protocol device
* @pinctrl_dev: SCMI pin control protocol device
*/
struct scmi_agent_priv {
u32 version;
u32 num_agents;
u32 num_protocols;
u32 impl_version;
u8 *protocols;
u8 *vendor;
u8 *sub_vendor;
u8 *agent_name;
u32 agent_id;
struct udevice *base_dev;
struct udevice *pwdom_dev;
struct udevice *clock_dev;
struct udevice *resetdom_dev;
struct udevice *voltagedom_dev;
struct udevice *pinctrl_dev;
};
static inline u32 scmi_version(struct udevice *dev)
{
return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->version;
}
static inline u32 scmi_num_agents(struct udevice *dev)
{
return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->num_agents;
}
static inline u32 scmi_num_protocols(struct udevice *dev)
{
return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->num_protocols;
}
static inline u32 scmi_impl_version(struct udevice *dev)
{
return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->impl_version;
}
static inline u8 *scmi_protocols(struct udevice *dev)
{
return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->protocols;
}
static inline u8 *scmi_vendor(struct udevice *dev)
{
return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->vendor;
}
static inline u8 *scmi_sub_vendor(struct udevice *dev)
{
return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->sub_vendor;
}
static inline u8 *scmi_agent_name(struct udevice *dev)
{
return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->agent_name;
}
static inline u32 scmi_agent_id(struct udevice *dev)
{
return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->agent_id;
}
/**
* struct scmi_transport_ops - The functions that a SCMI transport layer must implement.
*/
struct scmi_agent_ops {
/*
* of_get_channel - Get SCMI channel from SCMI agent device tree node
*
* @dev: SCMI agent device using the transport
* @protocol: SCMI protocol device using the transport
* @channel: Output reference to SCMI channel upon success
* Return 0 upon success and a negative errno on failure
*/
int (*of_get_channel)(struct udevice *dev, struct udevice *protocol,
struct scmi_channel **channel);
/*
* process_msg - Request transport to get the SCMI message processed
*
* @dev: SCMI agent device using the transport
* @msg: SCMI message to be transmitted
*/
int (*process_msg)(struct udevice *dev, struct scmi_channel *channel,
struct scmi_msg *msg);
};
struct scmi_proto_match {
unsigned int proto_id;
};
struct scmi_proto_driver {
struct driver *driver;
const struct scmi_proto_match *match;
};
#define U_BOOT_SCMI_PROTO_DRIVER(__name, __match) \
ll_entry_declare(struct scmi_proto_driver, __name, scmi_proto_driver) = { \
.driver = llsym(struct driver, __name, driver), \
.match = __match, \
}
#endif /* _SCMI_TRANSPORT_UCLASS_H */
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