/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Support for Intel Camera Imaging ISP subsystem.
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* Copyright (c) 2015, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#ifndef __IA_CSS_BUFFER_H
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#define __IA_CSS_BUFFER_H
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/* @file
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* This file contains datastructures and types for buffers used in CSS
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*/
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#include <type_support.h>
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#include "ia_css_types.h"
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#include "ia_css_timer.h"
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/* Enumeration of buffer types. Buffers can be queued and de-queued
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* to hand them over between IA and ISP.
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*/
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enum ia_css_buffer_type {
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IA_CSS_BUFFER_TYPE_INVALID = -1,
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IA_CSS_BUFFER_TYPE_3A_STATISTICS = 0,
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IA_CSS_BUFFER_TYPE_DIS_STATISTICS,
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IA_CSS_BUFFER_TYPE_LACE_STATISTICS,
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IA_CSS_BUFFER_TYPE_INPUT_FRAME,
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IA_CSS_BUFFER_TYPE_OUTPUT_FRAME,
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IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME,
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IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME,
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IA_CSS_BUFFER_TYPE_SEC_VF_OUTPUT_FRAME,
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IA_CSS_BUFFER_TYPE_RAW_OUTPUT_FRAME,
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IA_CSS_BUFFER_TYPE_CUSTOM_INPUT,
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IA_CSS_BUFFER_TYPE_CUSTOM_OUTPUT,
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IA_CSS_BUFFER_TYPE_METADATA,
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IA_CSS_BUFFER_TYPE_PARAMETER_SET,
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IA_CSS_BUFFER_TYPE_PER_FRAME_PARAMETER_SET,
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IA_CSS_NUM_DYNAMIC_BUFFER_TYPE,
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IA_CSS_NUM_BUFFER_TYPE
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};
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/* Driver API is not SP/ISP visible, 64 bit types not supported on hivecc */
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/* Buffer structure. This is a container structure that enables content
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* independent buffer queues and access functions.
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*/
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struct ia_css_buffer {
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enum ia_css_buffer_type type; /** Buffer type. */
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unsigned int exp_id;
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/** exposure id for this buffer; 0 = not available
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see ia_css_event_public.h for more detail. */
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union {
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struct ia_css_isp_3a_statistics
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*stats_3a; /** 3A statistics & optionally RGBY statistics. */
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struct ia_css_isp_dvs_statistics *stats_dvs; /** DVS statistics. */
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struct ia_css_isp_skc_dvs_statistics *stats_skc_dvs; /** SKC DVS statistics. */
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struct ia_css_frame *frame; /** Frame buffer. */
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struct ia_css_acc_param *custom_data; /** Custom buffer. */
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struct ia_css_metadata *metadata; /** Sensor metadata. */
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} data; /** Buffer data pointer. */
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u64 driver_cookie; /** cookie for the driver */
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struct ia_css_time_meas
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timing_data; /** timing data (readings from the timer) */
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struct ia_css_clock_tick
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isys_eof_clock_tick; /** ISYS's end of frame timer tick*/
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};
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/* @brief Dequeue param buffers from sp2host_queue
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*
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* @return None
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*
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* This function must be called at every driver interrupt handler to prevent
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* overflow of sp2host_queue.
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*/
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void
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ia_css_dequeue_param_buffers(void);
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#endif /* __IA_CSS_BUFFER_H */
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