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