1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright (C) 2018 Intel Corporation */
3
4#ifndef __IPU3_CSS_H
5#define __IPU3_CSS_H
6
7#include <linux/videodev2.h>
8#include <linux/types.h>
9
10#include "ipu3-abi.h"
11#include "ipu3-css-pool.h"
12
13/* 2 stages for split isp pipeline, 1 for scaling */
14#define IMGU_NUM_SP 2
15#define IMGU_MAX_PIPELINE_NUM 20
16#define IMGU_MAX_PIPE_NUM 2
17
18/* For DVS etc., format FRAME_FMT_YUV420_16 */
19#define IPU3_CSS_AUX_FRAME_REF 0
20/* For temporal noise reduction DVS etc., format FRAME_FMT_YUV_LINE */
21#define IPU3_CSS_AUX_FRAME_TNR 1
22#define IPU3_CSS_AUX_FRAME_TYPES 2 /* REF and TNR */
23#define IPU3_CSS_AUX_FRAMES 2 /* 2 for REF and 2 for TNR */
24
25#define IPU3_CSS_QUEUE_IN 0
26#define IPU3_CSS_QUEUE_PARAMS 1
27#define IPU3_CSS_QUEUE_OUT 2
28#define IPU3_CSS_QUEUE_VF 3
29#define IPU3_CSS_QUEUE_STAT_3A 4
30#define IPU3_CSS_QUEUES 5
31
32#define IPU3_CSS_RECT_EFFECTIVE 0 /* Effective resolution */
33#define IPU3_CSS_RECT_BDS 1 /* Resolution after BDS */
34#define IPU3_CSS_RECT_ENVELOPE 2 /* DVS envelope size */
35#define IPU3_CSS_RECT_GDC 3 /* gdc output res */
36#define IPU3_CSS_RECTS 4 /* number of rects */
37
38#define IA_CSS_BINARY_MODE_PRIMARY 2
39#define IA_CSS_BINARY_MODE_VIDEO 3
40#define IPU3_CSS_DEFAULT_BINARY 3 /* default binary index */
41
42/*
43 * The pipe id type, distinguishes the kind of pipes that
44 * can be run in parallel.
45 */
46enum imgu_css_pipe_id {
47 IPU3_CSS_PIPE_ID_PREVIEW,
48 IPU3_CSS_PIPE_ID_COPY,
49 IPU3_CSS_PIPE_ID_VIDEO,
50 IPU3_CSS_PIPE_ID_CAPTURE,
51 IPU3_CSS_PIPE_ID_YUVPP,
52 IPU3_CSS_PIPE_ID_ACC,
53 IPU3_CSS_PIPE_ID_NUM
54};
55
56struct imgu_css_resolution {
57 u32 w;
58 u32 h;
59};
60
61enum imgu_css_buffer_state {
62 IPU3_CSS_BUFFER_NEW, /* Not yet queued */
63 IPU3_CSS_BUFFER_QUEUED, /* Queued, waiting to be filled */
64 IPU3_CSS_BUFFER_DONE, /* Finished processing, removed from queue */
65 IPU3_CSS_BUFFER_FAILED, /* Was not processed, removed from queue */
66};
67
68struct imgu_css_buffer {
69 /* Private fields: user doesn't touch */
70 dma_addr_t daddr;
71 unsigned int queue;
72 enum imgu_css_buffer_state state;
73 struct list_head list;
74 u8 queue_pos;
75 unsigned int pipe;
76};
77
78struct imgu_css_format {
79 u32 pixelformat;
80 enum v4l2_colorspace colorspace;
81 enum imgu_abi_frame_format frame_format;
82 enum imgu_abi_bayer_order bayer_order;
83 enum imgu_abi_osys_format osys_format;
84 enum imgu_abi_osys_tiling osys_tiling;
85 u8 bit_depth; /* Effective bits per pixel */
86 u8 chroma_decim; /* Chroma plane decimation, 0=no chroma plane */
87 u8 width_align; /* Alignment requirement for width_pad */
88 u8 flags;
89};
90
91struct imgu_css_queue {
92 union {
93 struct v4l2_pix_format_mplane mpix;
94 struct v4l2_meta_format meta;
95
96 } fmt;
97 const struct imgu_css_format *css_fmt;
98 unsigned int width_pad;
99 struct list_head bufs;
100};
101
102struct imgu_css_pipe {
103 enum imgu_css_pipe_id pipe_id;
104 unsigned int bindex;
105
106 struct imgu_css_queue queue[IPU3_CSS_QUEUES];
107 struct v4l2_rect rect[IPU3_CSS_RECTS];
108
109 bool vf_output_en;
110 /* Protect access to queue[IPU3_CSS_QUEUES] */
111 spinlock_t qlock;
112
113 /* Data structures shared with IMGU and driver, always allocated */
114 struct imgu_css_map sp_ddr_ptrs;
115 struct imgu_css_map xmem_sp_stage_ptrs[IPU3_CSS_PIPE_ID_NUM]
116 [IMGU_ABI_MAX_STAGES];
117 struct imgu_css_map xmem_isp_stage_ptrs[IPU3_CSS_PIPE_ID_NUM]
118 [IMGU_ABI_MAX_STAGES];
119
120 /*
121 * Data structures shared with IMGU and driver, binary specific.
122 * PARAM_CLASS_CONFIG and PARAM_CLASS_STATE parameters.
123 */
124 struct imgu_css_map binary_params_cs[IMGU_ABI_PARAM_CLASS_NUM - 1]
125 [IMGU_ABI_NUM_MEMORIES];
126
127 struct {
128 struct imgu_css_map mem[IPU3_CSS_AUX_FRAMES];
129 unsigned int width;
130 unsigned int height;
131 unsigned int bytesperline;
132 unsigned int bytesperpixel;
133 } aux_frames[IPU3_CSS_AUX_FRAME_TYPES];
134
135 struct {
136 struct imgu_css_pool parameter_set_info;
137 struct imgu_css_pool acc;
138 struct imgu_css_pool gdc;
139 struct imgu_css_pool obgrid;
140 /* PARAM_CLASS_PARAM parameters for binding while streaming */
141 struct imgu_css_pool binary_params_p[IMGU_ABI_NUM_MEMORIES];
142 } pool;
143
144 struct imgu_css_map abi_buffers[IPU3_CSS_QUEUES]
145 [IMGU_ABI_HOST2SP_BUFQ_SIZE];
146};
147
148/* IPU3 Camera Sub System structure */
149struct imgu_css {
150 struct device *dev;
151 void __iomem *base;
152 const struct firmware *fw;
153 struct imgu_fw_header *fwp;
154 int iomem_length;
155 int fw_bl, fw_sp[IMGU_NUM_SP]; /* Indices of bl and SP binaries */
156 struct imgu_css_map *binary; /* fw binaries mapped to device */
157 bool streaming; /* true when streaming is enabled */
158
159 struct imgu_css_pipe pipes[IMGU_MAX_PIPE_NUM];
160 struct imgu_css_map xmem_sp_group_ptrs;
161
162 /* enabled pipe(s) */
163 DECLARE_BITMAP(enabled_pipes, IMGU_MAX_PIPE_NUM);
164};
165
166/******************* css v4l *******************/
167int imgu_css_init(struct device *dev, struct imgu_css *css,
168 void __iomem *base, int length);
169void imgu_css_cleanup(struct imgu_css *css);
170int imgu_css_fmt_try(struct imgu_css *css,
171 struct v4l2_pix_format_mplane *fmts[IPU3_CSS_QUEUES],
172 struct v4l2_rect *rects[IPU3_CSS_RECTS],
173 unsigned int pipe);
174int imgu_css_fmt_set(struct imgu_css *css,
175 struct v4l2_pix_format_mplane *fmts[IPU3_CSS_QUEUES],
176 struct v4l2_rect *rects[IPU3_CSS_RECTS],
177 unsigned int pipe);
178int imgu_css_meta_fmt_set(struct v4l2_meta_format *fmt);
179int imgu_css_buf_queue(struct imgu_css *css, unsigned int pipe,
180 struct imgu_css_buffer *b);
181struct imgu_css_buffer *imgu_css_buf_dequeue(struct imgu_css *css);
182int imgu_css_start_streaming(struct imgu_css *css);
183void imgu_css_stop_streaming(struct imgu_css *css);
184bool imgu_css_queue_empty(struct imgu_css *css);
185bool imgu_css_is_streaming(struct imgu_css *css);
186bool imgu_css_pipe_queue_empty(struct imgu_css *css, unsigned int pipe);
187
188/******************* css hw *******************/
189int imgu_css_set_powerup(struct device *dev, void __iomem *base,
190 unsigned int freq);
191void imgu_css_set_powerdown(struct device *dev, void __iomem *base);
192int imgu_css_irq_ack(struct imgu_css *css);
193
194/******************* set parameters ************/
195int imgu_css_set_parameters(struct imgu_css *css, unsigned int pipe,
196 struct ipu3_uapi_params *set_params);
197
198/******************* auxiliary helpers *******************/
199static inline enum imgu_css_buffer_state
200imgu_css_buf_state(struct imgu_css_buffer *b)
201{
202 return b->state;
203}
204
205/* Initialize given buffer. May be called several times. */
206static inline void imgu_css_buf_init(struct imgu_css_buffer *b,
207 unsigned int queue, dma_addr_t daddr)
208{
209 b->state = IPU3_CSS_BUFFER_NEW;
210 b->queue = queue;
211 b->daddr = daddr;
212}
213#endif
214

source code of linux/drivers/staging/media/ipu3/ipu3-css.h