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c1d2ed0c63
Add power domain driver based on SCMI power domain management protocol. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2019-2020 Linaro Limited.
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*/
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#ifndef _SCMI_AGENT_UCLASS_H
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#define _SCMI_AGENT_UCLASS_H
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#include <scmi_protocols.h>
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#include <dm/device.h>
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struct scmi_msg;
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struct scmi_channel;
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/**
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* struct scmi_agent_priv - private data maintained by agent instance
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* @version: Version
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* @num_agents: Number of agents
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* @num_protocols: Number of protocols
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* @impl_version: Implementation version
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* @protocols: Array of protocol IDs
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* @vendor: Vendor name
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* @sub_vendor: Sub-vendor name
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* @agent_name: Agent name
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* @agent_id: Identifier of agent
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* @base_dev: SCMI base protocol device
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* @pwdom_dev: SCMI power domain management protocol device
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* @clock_dev: SCMI clock protocol device
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* @resetdom_dev: SCMI reset domain protocol device
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* @voltagedom_dev: SCMI voltage domain protocol device
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*/
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struct scmi_agent_priv {
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u32 version;
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u32 num_agents;
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u32 num_protocols;
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u32 impl_version;
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u8 *protocols;
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u8 *vendor;
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u8 *sub_vendor;
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u8 *agent_name;
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u32 agent_id;
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struct udevice *base_dev;
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struct udevice *pwdom_dev;
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struct udevice *clock_dev;
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struct udevice *resetdom_dev;
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struct udevice *voltagedom_dev;
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};
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static inline u32 scmi_version(struct udevice *dev)
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{
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return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->version;
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}
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static inline u32 scmi_num_agents(struct udevice *dev)
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{
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return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->num_agents;
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}
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static inline u32 scmi_num_protocols(struct udevice *dev)
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{
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return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->num_protocols;
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}
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static inline u32 scmi_impl_version(struct udevice *dev)
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{
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return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->impl_version;
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}
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static inline u8 *scmi_protocols(struct udevice *dev)
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{
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return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->protocols;
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}
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static inline u8 *scmi_vendor(struct udevice *dev)
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{
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return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->vendor;
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}
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static inline u8 *scmi_sub_vendor(struct udevice *dev)
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{
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return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->sub_vendor;
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}
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static inline u8 *scmi_agent_name(struct udevice *dev)
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{
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return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->agent_name;
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}
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static inline u32 scmi_agent_id(struct udevice *dev)
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{
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return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->agent_id;
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}
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/**
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* struct scmi_transport_ops - The functions that a SCMI transport layer must implement.
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*/
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struct scmi_agent_ops {
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/*
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* of_get_channel - Get SCMI channel from SCMI agent device tree node
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*
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* @dev: SCMI agent device using the transport
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* @protocol: SCMI protocol device using the transport
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* @channel: Output reference to SCMI channel upon success
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* Return 0 upon success and a negative errno on failure
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*/
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int (*of_get_channel)(struct udevice *dev, struct udevice *protocol,
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struct scmi_channel **channel);
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/*
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* process_msg - Request transport to get the SCMI message processed
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*
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* @dev: SCMI agent device using the transport
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* @msg: SCMI message to be transmitted
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*/
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int (*process_msg)(struct udevice *dev, struct scmi_channel *channel,
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struct scmi_msg *msg);
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};
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#endif /* _SCMI_TRANSPORT_UCLASS_H */
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