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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* SCMI Message Protocol driver NXP extension header
*
* Copyright 2024 NXP.
*/
#ifndef _LINUX_SCMI_NXP_PROTOCOL_H
#define _LINUX_SCMI_NXP_PROTOCOL_H
#include <linux/bitfield.h>
#include <linux/device.h>
#include <linux/notifier.h>
#include <linux/scmi_protocol.h>
#include <linux/types.h>
#define SCMI_PROTOCOL_IMX_LMM 0x80
#define SCMI_PROTOCOL_IMX_BBM 0x81
#define SCMI_PROTOCOL_IMX_CPU 0x82
#define SCMI_PROTOCOL_IMX_MISC 0x84
#define SCMI_IMX_VENDOR "NXP"
#define SCMI_IMX_SUBVENDOR "IMX"
struct scmi_imx_bbm_proto_ops {
int (*rtc_time_set)(const struct scmi_protocol_handle *ph, u32 id,
uint64_t sec);
int (*rtc_time_get)(const struct scmi_protocol_handle *ph, u32 id,
u64 *val);
int (*rtc_alarm_set)(const struct scmi_protocol_handle *ph, u32 id,
bool enable, u64 sec);
int (*button_get)(const struct scmi_protocol_handle *ph, u32 *state);
};
enum scmi_nxp_notification_events {
SCMI_EVENT_IMX_BBM_RTC = 0x0,
SCMI_EVENT_IMX_BBM_BUTTON = 0x1,
SCMI_EVENT_IMX_MISC_CONTROL = 0x0,
};
struct scmi_imx_bbm_notif_report {
bool is_rtc;
bool is_button;
ktime_t timestamp;
unsigned int rtc_id;
unsigned int rtc_evt;
};
struct scmi_imx_misc_ctrl_notify_report {
ktime_t timestamp;
unsigned int ctrl_id;
unsigned int flags;
};
struct scmi_imx_misc_proto_ops {
int (*misc_ctrl_set)(const struct scmi_protocol_handle *ph, u32 id,
u32 num, u32 *val);
int (*misc_ctrl_get)(const struct scmi_protocol_handle *ph, u32 id,
u32 *num, u32 *val);
int (*misc_ctrl_req_notify)(const struct scmi_protocol_handle *ph,
u32 ctrl_id, u32 evt_id, u32 flags);
};
/* See LMM_ATTRIBUTES in imx95.rst */
#define LMM_ID_DISCOVER 0xFFFFFFFFU
#define LMM_MAX_NAME 16
enum scmi_imx_lmm_state {
LMM_STATE_LM_OFF,
LMM_STATE_LM_ON,
LMM_STATE_LM_SUSPEND,
LMM_STATE_LM_POWERED,
};
struct scmi_imx_lmm_info {
u32 lmid;
enum scmi_imx_lmm_state state;
u32 errstatus;
u8 name[LMM_MAX_NAME];
};
struct scmi_imx_lmm_proto_ops {
int (*lmm_power_boot)(const struct scmi_protocol_handle *ph, u32 lmid,
bool boot);
int (*lmm_info)(const struct scmi_protocol_handle *ph, u32 lmid,
struct scmi_imx_lmm_info *info);
int (*lmm_reset_vector_set)(const struct scmi_protocol_handle *ph,
u32 lmid, u32 cpuid, u32 flags, u64 vector);
int (*lmm_shutdown)(const struct scmi_protocol_handle *ph, u32 lmid,
u32 flags);
};
struct scmi_imx_cpu_proto_ops {
int (*cpu_reset_vector_set)(const struct scmi_protocol_handle *ph,
u32 cpuid, u64 vector, bool start,
bool boot, bool resume);
int (*cpu_start)(const struct scmi_protocol_handle *ph, u32 cpuid,
bool start);
int (*cpu_started)(const struct scmi_protocol_handle *ph, u32 cpuid,
bool *started);
};
#endif
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