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/scmi_protocol.h> 15 #include <linux/types.h> 16 17 #define SCMI_PROTOCOL_IMX_LMM 0x80 18 #define SCMI_PROTOCOL_IMX_BBM 0x81 19 #define SCMI_PROTOCOL_IMX_CPU 0x82 20 #define SCMI_PROTOCOL_IMX_MISC 0x84 21 22 #define SCMI_IMX_VENDOR "NXP" 23 #define SCMI_IMX_SUBVENDOR "IMX" 24 25 struct scmi_imx_bbm_proto_ops { 26 int (*rtc_time_set)(const struct scmi_protocol_handle *ph, u32 id, 27 uint64_t sec); 28 int (*rtc_time_get)(const struct scmi_protocol_handle *ph, u32 id, 29 u64 *val); 30 int (*rtc_alarm_set)(const struct scmi_protocol_handle *ph, u32 id, 31 bool enable, u64 sec); 32 int (*button_get)(const struct scmi_protocol_handle *ph, u32 *state); 33 }; 34 35 enum scmi_nxp_notification_events { 36 SCMI_EVENT_IMX_BBM_RTC = 0x0, 37 SCMI_EVENT_IMX_BBM_BUTTON = 0x1, 38 SCMI_EVENT_IMX_MISC_CONTROL = 0x0, 39 }; 40 41 struct scmi_imx_bbm_notif_report { 42 bool is_rtc; 43 bool is_button; 44 ktime_t timestamp; 45 unsigned int rtc_id; 46 unsigned int rtc_evt; 47 }; 48 49 struct scmi_imx_misc_ctrl_notify_report { 50 ktime_t timestamp; 51 unsigned int ctrl_id; 52 unsigned int flags; 53 }; 54 55 struct scmi_imx_misc_proto_ops { 56 int (*misc_ctrl_set)(const struct scmi_protocol_handle *ph, u32 id, 57 u32 num, u32 *val); 58 int (*misc_ctrl_get)(const struct scmi_protocol_handle *ph, u32 id, 59 u32 *num, u32 *val); 60 int (*misc_ctrl_req_notify)(const struct scmi_protocol_handle *ph, 61 u32 ctrl_id, u32 evt_id, u32 flags); 62 int (*misc_syslog)(const struct scmi_protocol_handle *ph, u16 *size, 63 void *array); 64 }; 65 66 /* See LMM_ATTRIBUTES in imx95.rst */ 67 #define LMM_ID_DISCOVER 0xFFFFFFFFU 68 #define LMM_MAX_NAME 16 69 70 enum scmi_imx_lmm_state { 71 LMM_STATE_LM_OFF, 72 LMM_STATE_LM_ON, 73 LMM_STATE_LM_SUSPEND, 74 LMM_STATE_LM_POWERED, 75 }; 76 77 struct scmi_imx_lmm_info { 78 u32 lmid; 79 enum scmi_imx_lmm_state state; 80 u32 errstatus; 81 u8 name[LMM_MAX_NAME]; 82 }; 83 84 struct scmi_imx_lmm_proto_ops { 85 int (*lmm_power_boot)(const struct scmi_protocol_handle *ph, u32 lmid, 86 bool boot); 87 int (*lmm_info)(const struct scmi_protocol_handle *ph, u32 lmid, 88 struct scmi_imx_lmm_info *info); 89 int (*lmm_reset_vector_set)(const struct scmi_protocol_handle *ph, 90 u32 lmid, u32 cpuid, u32 flags, u64 vector); 91 int (*lmm_shutdown)(const struct scmi_protocol_handle *ph, u32 lmid, 92 u32 flags); 93 }; 94 95 struct scmi_imx_cpu_proto_ops { 96 int (*cpu_reset_vector_set)(const struct scmi_protocol_handle *ph, 97 u32 cpuid, u64 vector, bool start, 98 bool boot, bool resume); 99 int (*cpu_start)(const struct scmi_protocol_handle *ph, u32 cpuid, 100 bool start); 101 int (*cpu_started)(const struct scmi_protocol_handle *ph, u32 cpuid, 102 bool *started); 103 }; 104 #endif 105