1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Support for Intel Camera Imaging ISP subsystem.
4 * Copyright (c) 2015, Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 #ifndef __IA_CSS_BUFFER_H
17 #define __IA_CSS_BUFFER_H
20 * This file contains datastructures and types for buffers used in CSS
23 #include <type_support.h>
24 #include "ia_css_types.h"
25 #include "ia_css_timer.h"
27 /* Enumeration of buffer types. Buffers can be queued and de-queued
28 * to hand them over between IA and ISP.
30 enum ia_css_buffer_type {
31 IA_CSS_BUFFER_TYPE_INVALID = -1,
32 IA_CSS_BUFFER_TYPE_3A_STATISTICS = 0,
33 IA_CSS_BUFFER_TYPE_DIS_STATISTICS,
34 IA_CSS_BUFFER_TYPE_LACE_STATISTICS,
35 IA_CSS_BUFFER_TYPE_INPUT_FRAME,
36 IA_CSS_BUFFER_TYPE_OUTPUT_FRAME,
37 IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME,
38 IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME,
39 IA_CSS_BUFFER_TYPE_SEC_VF_OUTPUT_FRAME,
40 IA_CSS_BUFFER_TYPE_RAW_OUTPUT_FRAME,
41 IA_CSS_BUFFER_TYPE_CUSTOM_INPUT,
42 IA_CSS_BUFFER_TYPE_CUSTOM_OUTPUT,
43 IA_CSS_BUFFER_TYPE_METADATA,
44 IA_CSS_BUFFER_TYPE_PARAMETER_SET,
45 IA_CSS_BUFFER_TYPE_PER_FRAME_PARAMETER_SET,
46 IA_CSS_NUM_DYNAMIC_BUFFER_TYPE,
47 IA_CSS_NUM_BUFFER_TYPE
50 /* Driver API is not SP/ISP visible, 64 bit types not supported on hivecc */
52 /* Buffer structure. This is a container structure that enables content
53 * independent buffer queues and access functions.
55 struct ia_css_buffer {
56 enum ia_css_buffer_type type; /** Buffer type. */
58 /** exposure id for this buffer; 0 = not available
59 see ia_css_event_public.h for more detail. */
61 struct ia_css_isp_3a_statistics
62 *stats_3a; /** 3A statistics & optionally RGBY statistics. */
63 struct ia_css_isp_dvs_statistics *stats_dvs; /** DVS statistics. */
64 struct ia_css_isp_skc_dvs_statistics *stats_skc_dvs; /** SKC DVS statistics. */
65 struct ia_css_frame *frame; /** Frame buffer. */
66 struct ia_css_acc_param *custom_data; /** Custom buffer. */
67 struct ia_css_metadata *metadata; /** Sensor metadata. */
68 } data; /** Buffer data pointer. */
69 u64 driver_cookie; /** cookie for the driver */
70 struct ia_css_time_meas
71 timing_data; /** timing data (readings from the timer) */
72 struct ia_css_clock_tick
73 isys_eof_clock_tick; /** ISYS's end of frame timer tick*/
76 /* @brief Dequeue param buffers from sp2host_queue
80 * This function must be called at every driver interrupt handler to prevent
81 * overflow of sp2host_queue.
84 ia_css_dequeue_param_buffers(void);
86 #endif /* __IA_CSS_BUFFER_H */