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nv-tegra.nvidia.com / linux-5.10 / 20c8ccb1975b8d5639789d1025ad6ada38bd6f48 / . / drivers / media / platform / omap3isp / ispstat.h
blob: 923b38cfc682ccc83ff6f5a83e0e2023df9786ee [file] [log] [blame]
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]1/*
2 * ispstat.h
3 *
4 * TI OMAP3 ISP - Statistics core
5 *
6 * Copyright (C) 2010 Nokia Corporation
7 * Copyright (C) 2009 Texas Instruments, Inc
8 *
9 * Contacts: David Cohen <dacohen@gmail.com>
10 * Laurent Pinchart <laurent.pinchart@ideasonboard.com>
11 * Sakari Ailus <sakari.ailus@iki.fi>
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]16 */
17
18#ifndef OMAP3_ISP_STAT_H
19#define OMAP3_ISP_STAT_H
20
21#include <linux/types.h>
22#include <linux/omap3isp.h>
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]23#include <media/v4l2-event.h>
24
25#include "isp.h"
26#include "ispvideo.h"
27
28#define STAT_MAX_BUFS 5
29#define STAT_NEVENTS 8
30
31#define STAT_BUF_DONE 0 /* Buffer is ready */
32#define STAT_NO_BUF 1 /* An error has occurred */
33#define STAT_BUF_WAITING_DMA 2 /* Histogram only: DMA is running */
34
Laurent Pinchart0ff4e412015-02-21 17:59:54 -0300[diff] [blame]35struct dma_chan;
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]36struct ispstat;
37
38struct ispstat_buffer {
Laurent Pinchart0e24e902014-01-02 20:06:08 -0300[diff] [blame]39 struct sg_table sgt;
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]40 void *virt_addr;
41 dma_addr_t dma_addr;
Arnd Bergmann378e3f82018-04-25 17:30:10 -0400[diff] [blame]42 struct timespec64 ts;
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]43 u32 buf_size;
44 u32 frame_number;
45 u16 config_counter;
46 u8 empty;
47};
48
49struct ispstat_ops {
50 /*
51 * Validate new params configuration.
52 * new_conf->buf_size value must be changed to the exact buffer size
53 * necessary for the new configuration if it's smaller.
54 */
55 int (*validate_params)(struct ispstat *stat, void *new_conf);
56
57 /*
58 * Save new params configuration.
59 * stat->priv->buf_size value must be set to the exact buffer size for
60 * the new configuration.
61 * stat->update is set to 1 if new configuration is different than
62 * current one.
63 */
64 void (*set_params)(struct ispstat *stat, void *new_conf);
65
66 /* Apply stored configuration. */
67 void (*setup_regs)(struct ispstat *stat, void *priv);
68
69 /* Enable/Disable module. */
70 void (*enable)(struct ispstat *stat, int enable);
71
72 /* Verify is module is busy. */
73 int (*busy)(struct ispstat *stat);
74
75 /* Used for specific operations during generic buf process task. */
76 int (*buf_process)(struct ispstat *stat);
77};
78
79enum ispstat_state_t {
80 ISPSTAT_DISABLED = 0,
81 ISPSTAT_DISABLING,
82 ISPSTAT_ENABLED,
83 ISPSTAT_ENABLING,
84 ISPSTAT_SUSPENDED,
85};
86
87struct ispstat {
88 struct v4l2_subdev subdev;
89 struct media_pad pad; /* sink pad */
90
91 /* Control */
92 unsigned configured:1;
93 unsigned update:1;
94 unsigned buf_processing:1;
95 unsigned sbl_ovl_recover:1;
96 u8 inc_config;
97 atomic_t buf_err;
98 enum ispstat_state_t state; /* enabling/disabling state */
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]99 struct isp_device *isp;
100 void *priv; /* pointer to priv config struct */
101 void *recover_priv; /* pointer to recover priv configuration */
102 struct mutex ioctl_lock; /* serialize private ioctl */
103
104 const struct ispstat_ops *ops;
105
106 /* Buffer */
107 u8 wait_acc_frames;
108 u16 config_counter;
109 u32 frame_number;
110 u32 buf_size;
111 u32 buf_alloc_size;
Laurent Pinchart0ff4e412015-02-21 17:59:54 -0300[diff] [blame]112 struct dma_chan *dma_ch;
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]113 unsigned long event_type;
114 struct ispstat_buffer *buf;
115 struct ispstat_buffer *active_buf;
116 struct ispstat_buffer *locked_buf;
117};
118
119struct ispstat_generic_config {
120 /*
121 * Fields must be in the same order as in:
David Cohenb5feda92011-03-01 12:17:40 -0300[diff] [blame]122 * - omap3isp_h3a_aewb_config
123 * - omap3isp_h3a_af_config
124 * - omap3isp_hist_config
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]125 */
126 u32 buf_size;
127 u16 config_counter;
128};
129
130int omap3isp_stat_config(struct ispstat *stat, void *new_conf);
131int omap3isp_stat_request_statistics(struct ispstat *stat,
132 struct omap3isp_stat_data *data);
Arnd Bergmann378e3f82018-04-25 17:30:10 -0400[diff] [blame]133int omap3isp_stat_request_statistics_time32(struct ispstat *stat,
134 struct omap3isp_stat_data_time32 *data);
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]135int omap3isp_stat_init(struct ispstat *stat, const char *name,
136 const struct v4l2_subdev_ops *sd_ops);
Laurent Pinchart63b4ca22011-09-22 16:54:34 -0300[diff] [blame]137void omap3isp_stat_cleanup(struct ispstat *stat);
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]138int omap3isp_stat_subscribe_event(struct v4l2_subdev *subdev,
139 struct v4l2_fh *fh,
Laurent Pinchart55c85042012-10-12 11:20:10 -0300[diff] [blame]140 struct v4l2_event_subscription *sub);
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]141int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev,
142 struct v4l2_fh *fh,
Laurent Pinchart55c85042012-10-12 11:20:10 -0300[diff] [blame]143 struct v4l2_event_subscription *sub);
David Cohen68e342b2011-02-12 18:05:06 -0300[diff] [blame]144int omap3isp_stat_s_stream(struct v4l2_subdev *subdev, int enable);
145
146int omap3isp_stat_busy(struct ispstat *stat);
147int omap3isp_stat_pcr_busy(struct ispstat *stat);
148void omap3isp_stat_suspend(struct ispstat *stat);
149void omap3isp_stat_resume(struct ispstat *stat);
150int omap3isp_stat_enable(struct ispstat *stat, u8 enable);
151void omap3isp_stat_sbl_overflow(struct ispstat *stat);
152void omap3isp_stat_isr(struct ispstat *stat);
153void omap3isp_stat_isr_frame_sync(struct ispstat *stat);
154void omap3isp_stat_dma_isr(struct ispstat *stat);
155int omap3isp_stat_register_entities(struct ispstat *stat,
156 struct v4l2_device *vdev);
157void omap3isp_stat_unregister_entities(struct ispstat *stat);
158
159#endif /* OMAP3_ISP_STAT_H */