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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * ispstat.h4 *5 * TI OMAP3 ISP - Statistics core6 *7 * Copyright (C) 2010 Nokia Corporation8 * Copyright (C) 2009 Texas Instruments, Inc9 *10 * Contacts: David Cohen <dacohen@gmail.com>11 * Laurent Pinchart <laurent.pinchart@ideasonboard.com>12 * Sakari Ailus <sakari.ailus@iki.fi>13 */14 15#ifndef OMAP3_ISP_STAT_H16#define OMAP3_ISP_STAT_H17 18#include <linux/types.h>19#include <linux/omap3isp.h>20#include <media/v4l2-event.h>21 22#include "isp.h"23#include "ispvideo.h"24 25#define STAT_MAX_BUFS 526#define STAT_NEVENTS 827 28#define STAT_BUF_DONE 0 /* Buffer is ready */29#define STAT_NO_BUF 1 /* An error has occurred */30#define STAT_BUF_WAITING_DMA 2 /* Histogram only: DMA is running */31 32struct dma_chan;33struct ispstat;34 35struct ispstat_buffer {36 struct sg_table sgt;37 void *virt_addr;38 dma_addr_t dma_addr;39 struct timespec64 ts;40 u32 buf_size;41 u32 frame_number;42 u16 config_counter;43 u8 empty;44};45 46struct ispstat_ops {47 /*48 * Validate new params configuration.49 * new_conf->buf_size value must be changed to the exact buffer size50 * necessary for the new configuration if it's smaller.51 */52 int (*validate_params)(struct ispstat *stat, void *new_conf);53 54 /*55 * Save new params configuration.56 * stat->priv->buf_size value must be set to the exact buffer size for57 * the new configuration.58 * stat->update is set to 1 if new configuration is different than59 * current one.60 */61 void (*set_params)(struct ispstat *stat, void *new_conf);62 63 /* Apply stored configuration. */64 void (*setup_regs)(struct ispstat *stat, void *priv);65 66 /* Enable/Disable module. */67 void (*enable)(struct ispstat *stat, int enable);68 69 /* Verify is module is busy. */70 int (*busy)(struct ispstat *stat);71 72 /* Used for specific operations during generic buf process task. */73 int (*buf_process)(struct ispstat *stat);74};75 76enum ispstat_state_t {77 ISPSTAT_DISABLED = 0,78 ISPSTAT_DISABLING,79 ISPSTAT_ENABLED,80 ISPSTAT_ENABLING,81 ISPSTAT_SUSPENDED,82};83 84struct ispstat {85 struct v4l2_subdev subdev;86 struct media_pad pad; /* sink pad */87 88 /* Control */89 unsigned configured:1;90 unsigned update:1;91 unsigned buf_processing:1;92 unsigned sbl_ovl_recover:1;93 u8 inc_config;94 atomic_t buf_err;95 enum ispstat_state_t state; /* enabling/disabling state */96 struct isp_device *isp;97 void *priv; /* pointer to priv config struct */98 void *recover_priv; /* pointer to recover priv configuration */99 struct mutex ioctl_lock; /* serialize private ioctl */100 101 const struct ispstat_ops *ops;102 103 /* Buffer */104 u8 wait_acc_frames;105 u16 config_counter;106 u32 frame_number;107 u32 buf_size;108 u32 buf_alloc_size;109 struct dma_chan *dma_ch;110 unsigned long event_type;111 struct ispstat_buffer *buf;112 struct ispstat_buffer *active_buf;113 struct ispstat_buffer *locked_buf;114};115 116struct ispstat_generic_config {117 /*118 * Fields must be in the same order as in:119 * - omap3isp_h3a_aewb_config120 * - omap3isp_h3a_af_config121 * - omap3isp_hist_config122 */123 u32 buf_size;124 u16 config_counter;125};126 127int omap3isp_stat_config(struct ispstat *stat, void *new_conf);128int omap3isp_stat_request_statistics(struct ispstat *stat,129 struct omap3isp_stat_data *data);130int omap3isp_stat_request_statistics_time32(struct ispstat *stat,131 struct omap3isp_stat_data_time32 *data);132int omap3isp_stat_init(struct ispstat *stat, const char *name,133 const struct v4l2_subdev_ops *sd_ops);134void omap3isp_stat_cleanup(struct ispstat *stat);135int omap3isp_stat_subscribe_event(struct v4l2_subdev *subdev,136 struct v4l2_fh *fh,137 struct v4l2_event_subscription *sub);138int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev,139 struct v4l2_fh *fh,140 struct v4l2_event_subscription *sub);141int omap3isp_stat_s_stream(struct v4l2_subdev *subdev, int enable);142 143int omap3isp_stat_busy(struct ispstat *stat);144int omap3isp_stat_pcr_busy(struct ispstat *stat);145void omap3isp_stat_suspend(struct ispstat *stat);146void omap3isp_stat_resume(struct ispstat *stat);147int omap3isp_stat_enable(struct ispstat *stat, u8 enable);148void omap3isp_stat_sbl_overflow(struct ispstat *stat);149void omap3isp_stat_isr(struct ispstat *stat);150void omap3isp_stat_isr_frame_sync(struct ispstat *stat);151void omap3isp_stat_dma_isr(struct ispstat *stat);152int omap3isp_stat_register_entities(struct ispstat *stat,153 struct v4l2_device *vdev);154void omap3isp_stat_unregister_entities(struct ispstat *stat);155 156#endif /* OMAP3_ISP_STAT_H */157