Merge "msm:camera: Add Support for Multiple SOF sources" (7c8caf61) · Commits · e / devices / android_kernel_xiaomi_nabu

drivers/media/platform/msm/camera/cam_req_mgr/cam_req_mgr_core.c

+53 −5

Original line number	Diff line number	Diff line
		/* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -51,6 +51,7 @@ void cam_req_mgr_core_link_reset(struct cam_req_mgr_core_link *link)
		link->initial_skip = true;
		link->sof_timestamp = 0;
		link->prev_sof_timestamp = 0;
		link->num_sof_src = 0;
		}

		void cam_req_mgr_handle_core_shutdown(void)
		@@ -2491,6 +2492,9 @@ static int cam_req_mgr_cb_notify_trigger(
		struct cam_req_mgr_core_link *link = NULL;
		struct cam_req_mgr_trigger_notify *notify_trigger;
		struct crm_task_payload *task_data;
		bool send_sof = true;
		int i = 0;
		int64_t sof_time_diff = 0;

		if (!trigger_data) {
		CAM_ERR(CAM_CRM, "sof_data is NULL");
		@@ -2506,6 +2510,44 @@ static int cam_req_mgr_cb_notify_trigger(
		goto end;
		}

		for (i = 0; i < link->num_sof_src; i++) {
		if (link->dev_sof_evt[i].dev_hdl == trigger_data->dev_hdl) {
		if (link->dev_sof_evt[i].sof_done == false) {
		link->dev_sof_evt[i].sof_done = true;
		link->dev_sof_evt[i].frame_id =
		trigger_data->frame_id;
		link->dev_sof_evt[i].timestamp =
		trigger_data->sof_timestamp_val;
		} else
		CAM_INFO(CAM_CRM, "Received Spurious SOF");
		} else if (link->dev_sof_evt[i].sof_done == false) {
		send_sof = false;
		}
		}

		if (!send_sof)
		return 0;
		if (link->num_sof_src > 1) {
		for (i = 0; i < (link->num_sof_src - 1); i++) {
		if (link->dev_sof_evt[i].timestamp >=
		link->dev_sof_evt[i+1].timestamp) {
		sof_time_diff = link->dev_sof_evt[i].timestamp -
		link->dev_sof_evt[i+1].timestamp;
		} else {
		sof_time_diff =
		link->dev_sof_evt[i+1].timestamp -
		link->dev_sof_evt[i].timestamp;
		}
		if ((link->dev_sof_evt[i].frame_id !=
		link->dev_sof_evt[i+1].frame_id) \|\|
		sof_time_diff > TIMESTAMP_DIFF_THRESHOLD)
		return 0;
		}
		}

		for (i = 0; i < link->num_sof_src; i++)
		link->dev_sof_evt[i].sof_done = false;

		spin_lock_bh(&link->link_state_spin_lock);
		if (link->state < CAM_CRM_LINK_STATE_READY) {
		CAM_WARN(CAM_CRM, "invalid link state:%d", link->state);
		@@ -2654,6 +2696,12 @@ static int __cam_req_mgr_setup_link_info(struct cam_req_mgr_core_link *link,

		subscribe_event \|= (uint32_t)dev->dev_info.trigger;
		}
		if (dev->dev_info.dev_id == CAM_REQ_MGR_DEVICE_IFE) {
		link->dev_sof_evt[link->num_sof_src].dev_hdl =
		dev->dev_hdl;
		link->dev_sof_evt[link->num_sof_src].sof_done = false;
		link->num_sof_src++;
		}
		}

		link->subscribe_event = subscribe_event;

drivers/media/platform/msm/camera/cam_req_mgr/cam_req_mgr_core.h

+17 −1

Original line number	Diff line number	Diff line
		/* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -34,6 +34,7 @@

		/* Default frame rate is 30 */
		#define DEFAULT_FRAME_DURATION 33333333
		#define TIMESTAMP_DIFF_THRESHOLD 10000000

		#define SYNC_LINK_SOF_CNT_MAX_LMT 1

		@@ -286,6 +287,19 @@ struct cam_req_mgr_connected_device {
		void *parent;
		};

		/* *
		* struct cam_req_mgr_ife_sof_evt
		* - Track SOF Events from IFE
		* @ dev_hdl : device handle
		* @ sof_done : tracks sof for individual IFE
		*/
		struct cam_req_mgr_dev_sof_evt {
		uint64_t timestamp;
		int32_t dev_hdl;
		int32_t frame_id;
		bool sof_done;
		};

		/**
		* struct cam_req_mgr_core_link
		* - Link Properties
		@@ -350,6 +364,8 @@ struct cam_req_mgr_core_link {
		bool sync_link_sof_skip;
		int32_t open_req_cnt;
		uint32_t last_flush_id;
		int32_t num_sof_src;
		struct cam_req_mgr_dev_sof_evt dev_sof_evt[3];
		atomic_t is_used;
		bool is_master;
		bool initial_skip;