include/linux/scmi_imx_protocol.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * SCMI Message Protocol driver NXP extension header
   4  *
   5  * Copyright 2024 NXP.
   6  */
   7
   8 #ifndef _LINUX_SCMI_NXP_PROTOCOL_H
   9 #define _LINUX_SCMI_NXP_PROTOCOL_H
  10
  11 #include <linux/bitfield.h>
  12 #include <linux/device.h>
  13 #include <linux/notifier.h>
  14 #include <linux/types.h>
  15
  16 enum scmi_nxp_protocol {
  17         SCMI_PROTOCOL_IMX_BBM = 0x81,
  18         SCMI_PROTOCOL_IMX_MISC = 0x84,
  19 };
  20
  21 struct scmi_imx_bbm_proto_ops {
  22         int (*rtc_time_set)(const struct scmi_protocol_handle *ph, u32 id,
  23                             uint64_t sec);
  24         int (*rtc_time_get)(const struct scmi_protocol_handle *ph, u32 id,
  25                             u64 *val);
  26         int (*rtc_alarm_set)(const struct scmi_protocol_handle *ph, u32 id,
  27                              bool enable, u64 sec);
  28         int (*button_get)(const struct scmi_protocol_handle *ph, u32 *state);
  29 };
  30
  31 enum scmi_nxp_notification_events {
  32         SCMI_EVENT_IMX_BBM_RTC = 0x0,
  33         SCMI_EVENT_IMX_BBM_BUTTON = 0x1,
  34         SCMI_EVENT_IMX_MISC_CONTROL = 0x0,
  35 };
  36
  37 struct scmi_imx_bbm_notif_report {
  38         bool                    is_rtc;
  39         bool                    is_button;
  40         ktime_t                 timestamp;
  41         unsigned int            rtc_id;
  42         unsigned int            rtc_evt;
  43 };
  44
  45 struct scmi_imx_misc_ctrl_notify_report {
  46         ktime_t                 timestamp;
  47         unsigned int            ctrl_id;
  48         unsigned int            flags;
  49 };
  50
  51 struct scmi_imx_misc_proto_ops {
  52         int (*misc_ctrl_set)(const struct scmi_protocol_handle *ph, u32 id,
  53                              u32 num, u32 *val);
  54         int (*misc_ctrl_get)(const struct scmi_protocol_handle *ph, u32 id,
  55                              u32 *num, u32 *val);
  56         int (*misc_ctrl_req_notify)(const struct scmi_protocol_handle *ph,
  57                                     u32 ctrl_id, u32 evt_id, u32 flags);
  58 };
  59 #endif