feat(mediatek): add new features of LPM

Add new functions and intefaces of LPM to support more interactions
between LPM providers and users.

Change-Id: I8ebbda0c0ef5be3a7a388a38c09424ebf785996f
diff --git a/plat/mediatek/include/lpm/mt_lp_api.h b/plat/mediatek/include/lpm/mt_lp_api.h
new file mode 100644
index 0000000..00a2802
--- /dev/null
+++ b/plat/mediatek/include/lpm/mt_lp_api.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2023, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_LP_API_H
+#define MT_LP_API_H
+
+#include <lpm/mt_lp_rm.h>
+
+#if MTK_PUBEVENT_ENABLE
+#include <vendor_pubsub_events.h>
+#endif
+
+/* Ufs clk enum for PLAT_RC_CLKBUF_STATUS */
+enum rc_update_ex_ufs_ref_clk {
+	UFS_REF_CLK_OFF = 0,
+	UFS_REF_CLK_ON,
+};
+
+/* Enum for flight mode  */
+enum rc_update_ex_flight_mode {
+	FLIGHT_MODE_OFF = 0,
+	FLIGHT_MODE_ON,
+};
+
+struct mt_lpm_pubevent_data {
+	unsigned int u32;
+};
+
+enum mt_lpm_pubevents_id {
+	MT_LPM_PUBEVENTS_BBLPM_ENTER,
+	MT_LPM_PUBEVENTS_BBLPM_LEAVE,
+	MT_LPM_PUBEVENTS_TARGET_CORE,
+	MT_LPM_PUBEVENTS_SYS_POWER_OFF,
+	MT_LPM_PUBEVENTS_SYS_POWER_ON,
+};
+
+struct mt_lp_publish_event {
+	unsigned int id;
+	struct mt_lpm_pubevent_data val;
+};
+
+#if MTK_PUBEVENT_ENABLE
+#define MT_LP_PUBLISH_EVENT(x) ({\
+	PUBLISH_EVENT_ARG(lpm_publish_event, (const void *)(x)); })
+#define MT_LP_SUSPEND_PUBLISH_EVENT(x) ({\
+	PUBLISH_EVENT_ARG(suspend_publish_event, (const void *)(x)); })
+
+#define MT_LP_SUBSCRIBE_SUSPEND(func)	SUBSCRIBE_TO_EVENT(suspend_publish_event, func)
+#define MT_LP_SUBSCRIBE_LPM(func)	SUBSCRIBE_TO_EVENT(lpm_publish_event, func)
+#else
+#define MT_LP_PUBLISH_EVENT(x) ({ (void)x; })
+#define MT_LP_SUSPEND_PUBLISH_EVENT(x) ({ (void)x; })
+#define MT_LP_SUBSCRIBE_SUSPEND(func)
+#define MT_LP_SUBSCRIBE_LPM(func)
+#endif
+
+/* MTK low power API types for audio */
+enum mt_lp_api_audio_type {
+	AUDIO_AFE_ENTER,
+	AUDIO_AFE_LEAVE,
+	AUDIO_DSP_ENTER,
+	AUDIO_DSP_LEAVE,
+};
+
+/* MTK low power API types for usb */
+enum mt_lp_api_usb_type {
+	LPM_USB_ENTER,
+	LPM_USB_LEAVE,
+};
+
+int mt_audio_update(int type);
+int mtk_usb_update(int type);
+
+#endif /* MT_LP_API_H */
diff --git a/plat/mediatek/include/lpm/mt_lp_rq.h b/plat/mediatek/include/lpm/mt_lp_rq.h
new file mode 100644
index 0000000..2c4908c
--- /dev/null
+++ b/plat/mediatek/include/lpm/mt_lp_rq.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2023, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_LP_RQ_H
+#define MT_LP_RQ_H
+
+/* Determine the generic resource request public type */
+#define MT_LP_RQ_XO_FPM		BIT(0)
+#define MT_LP_RQ_26M		BIT(1)
+#define MT_LP_RQ_INFRA		BIT(2)
+#define MT_LP_RQ_SYSPLL		BIT(3)
+#define MT_LP_RQ_DRAM		BIT(4)
+#define MT_LP_RQ_ALL		(0xFFFFFFFF)
+
+struct mt_lp_resource_user {
+	/* Determine the resource user mask */
+	unsigned int umask;
+	/* Determine the resource request user identify */
+	unsigned int uid;
+	/* Request the resource */
+	int (*request)(struct mt_lp_resource_user *this, unsigned int resource);
+	/* Release the resource */
+	int (*release)(struct mt_lp_resource_user *this);
+};
+
+int mt_lp_resource_user_register(char *uname, struct mt_lp_resource_user *ru);
+
+#endif /* MT_LP_RQ_H */
diff --git a/plat/mediatek/include/lpm/mt_lp_rqm.h b/plat/mediatek/include/lpm/mt_lp_rqm.h
new file mode 100644
index 0000000..c30f762
--- /dev/null
+++ b/plat/mediatek/include/lpm/mt_lp_rqm.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2023, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_LP_RQM_H
+#define MT_LP_RQM_H
+
+#include "mt_lp_rq.h"
+
+enum plat_mt_lpm_rq_update_type {
+	PLAT_RQ_USER_NUM,
+	PLAT_RQ_USER_VALID,
+	PLAT_RQ_USER_REQ,
+	PLAT_RQ_USER_REL,
+	PLAT_RQ_PER_USER_NAME,
+	PLAT_RQ_REQ_NUM,
+	PLAT_RQ_REQ_USAGE,
+};
+
+/* Determine the request valid */
+#define MT_LP_RQ_VALID		(0x1)
+#define MT_LP_RQ_INVALID	(0x0)
+
+/* Determine the request user opertions */
+#define MT_LP_RQ_USER_INVALID	(-1)
+#define MT_LP_RQ_USER_MAX	(32)
+#define MT_LP_RQ_USER_NAME_LEN	(4)
+#define MT_LP_RQ_USER_CHAR_U	(8)
+
+/* Determine the request update flag */
+#define MT_LP_RQ_FLAG_DONE		(0)
+#define MT_LP_RQ_FLAG_NEED_UPDATE	BIT(6)
+
+/* Determine the resource update id */
+#define MT_LP_RQ_ID_ALL_USAGE	(-1)
+
+/* Determine the return status */
+#define MT_LP_RQ_STA_OK		(0)
+#define MT_LP_RQ_STA_BAD	(-1)
+
+struct mt_lp_res_req {
+	/* Determine the resource req public identify */
+	const unsigned int res_id;
+	/* Determine the resource bitwise internal control */
+	const unsigned int res_rq;
+	/* Determine the users per bit for current resource usage */
+	unsigned int res_usage;
+};
+
+struct mt_resource_req_manager {
+	/* Determine the set of resources */
+	struct mt_lp_res_req **res;
+};
+
+struct resource_req_status {
+	/* Determine the status id */
+	unsigned int id;
+	/* Determine the status value */
+	unsigned int val;
+};
+
+int mt_lp_resource_request_manager_register(struct mt_resource_req_manager *rqm);
+int mt_lp_rq_update_status(int type, void *p);
+int mt_lp_rq_get_status(int type, void *p);
+
+#endif /* MT_LP_RQM_H */
diff --git a/plat/mediatek/include/lpm/mt_lpm_smc.h b/plat/mediatek/include/lpm/mt_lpm_smc.h
new file mode 100644
index 0000000..0117ca9
--- /dev/null
+++ b/plat/mediatek/include/lpm/mt_lpm_smc.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2023, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_LPM_SMC_H
+#define MT_LPM_SMC_H
+
+/*
+ * MTK LPM smc user format:
+ * bit[31:24]: magic number
+ * bit[23:16]: user number
+ * bit[15:00]: user id
+ */
+
+#define MT_LPM_SMC_MAGIC	(0xDA000000)
+#define MT_LPM_SMC_MAGIC_MASK	(0xFF000000)
+#define MT_LPM_SMC_USER_MASK	(0xFF)
+#define MT_LPM_SMC_USER_SHIFT	(16)
+
+#define MT_LPM_SMC_USER_ID_MASK	(0x0000FFFF)
+
+/*
+ * cpu_pm is used for MCDI to read/write CPC information
+ * spm_dbg is used for spm related debug information
+ * spm is used for spm related settings
+ * cpu_pm_lp is used for MCDI setting irq_remain
+ */
+enum mt_lpm_smc_user_id {
+	MT_LPM_SMC_USER_CPU_PM = 0,
+	MT_LPM_SMC_USER_SPM_DBG,
+	MT_LPM_SMC_USER_SPM,
+	MT_LPM_SMC_USER_CPU_PM_LP,
+	MT_LPM_SMC_USER_SECURE_CPU_PM,
+	MT_LPM_SMC_USER_SECURE_SPM_DBG,
+	MT_LPM_SMC_USER_SECURE_SPM,
+	MT_LPM_SMC_USER_MAX,
+};
+
+#define IS_MT_LPM_SMC(smcid)	((smcid & MT_LPM_SMC_MAGIC_MASK) == MT_LPM_SMC_MAGIC)
+
+/* get real user id */
+#define MT_LPM_SMC_USER(id)	((id >> MT_LPM_SMC_USER_SHIFT) & MT_LPM_SMC_USER_MASK)
+#define MT_LPM_SMC_USER_ID(uid)	(uid & MT_LPM_SMC_USER_ID_MASK)
+
+/* sink user id to smc's user id */
+#define MT_LPM_SMC_USER_SINK(user, uid)	(((uid & MT_LPM_SMC_USER_ID_MASK) |\
+					((user & MT_LPM_SMC_USER_MASK) << MT_LPM_SMC_USER_SHIFT)) |\
+					MT_LPM_SMC_MAGIC)
+
+/* sink cpu pm's smc id */
+#define MT_LPM_SMC_USER_ID_CPU_PM(uid)	MT_LPM_SMC_USER_SINK(MT_LPM_SMC_USER_CPU_PM, uid)
+/* sink spm's smc id */
+#define MT_LPM_SMC_USER_ID_SPM(uid)	MT_LPM_SMC_USER_SINK(MT_LPM_SMC_USER_SPM, uid)
+
+/* sink cpu pm's user id */
+#define MT_LPM_SMC_USER_CPU_PM(uid)	MT_LPM_SMC_USER_ID_CPU_PM(uid)
+
+/* sink spm's user id */
+#define MT_LPM_SMC_USER_SPM(uid)	MT_LPM_SMC_USER_ID_SPM(uid)
+
+/* behavior */
+#define MT_LPM_SMC_ACT_SET		BIT(0)
+#define MT_LPM_SMC_ACT_CLR		BIT(1)
+#define MT_LPM_SMC_ACT_GET		BIT(2)
+#define MT_LPM_SMC_ACT_PUSH		BIT(3)
+#define MT_LPM_SMC_ACT_POP		BIT(4)
+#define MT_LPM_SMC_ACT_SUBMIT		BIT(5)
+
+/* compatible action for legacy smc from lk */
+#define MT_LPM_SMC_ACT_COMPAT		BIT(31)
+
+enum mt_lpm_spmc_compat_id {
+	MT_LPM_SPMC_COMPAT_LK_FW_INIT,
+	MT_LPM_SPMC_COMPAT_LK_MCDI_WDT_DUMP,
+};
+
+#endif /* MT_LPM_SMC_H */