/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* ispstat.h
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*
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* TI OMAP3 ISP - Statistics core
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*
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* Copyright (C) 2010 Nokia Corporation
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* Copyright (C) 2009 Texas Instruments, Inc
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*
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* Contacts: David Cohen <dacohen@gmail.com>
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* Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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* Sakari Ailus <sakari.ailus@iki.fi>
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*/
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#ifndef OMAP3_ISP_STAT_H
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#define OMAP3_ISP_STAT_H
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#include <linux/types.h>
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#include <linux/omap3isp.h>
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#include <media/v4l2-event.h>
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#include "isp.h"
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#include "ispvideo.h"
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#define STAT_MAX_BUFS 5
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#define STAT_NEVENTS 8
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#define STAT_BUF_DONE 0 /* Buffer is ready */
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#define STAT_NO_BUF 1 /* An error has occurred */
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#define STAT_BUF_WAITING_DMA 2 /* Histogram only: DMA is running */
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struct dma_chan;
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struct ispstat;
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struct ispstat_buffer {
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struct sg_table sgt;
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void *virt_addr;
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dma_addr_t dma_addr;
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struct timespec64 ts;
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u32 buf_size;
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u32 frame_number;
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u16 config_counter;
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u8 empty;
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};
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struct ispstat_ops {
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/*
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* Validate new params configuration.
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* new_conf->buf_size value must be changed to the exact buffer size
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* necessary for the new configuration if it's smaller.
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*/
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int (*validate_params)(struct ispstat *stat, void *new_conf);
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/*
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* Save new params configuration.
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* stat->priv->buf_size value must be set to the exact buffer size for
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* the new configuration.
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* stat->update is set to 1 if new configuration is different than
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* current one.
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*/
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void (*set_params)(struct ispstat *stat, void *new_conf);
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/* Apply stored configuration. */
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void (*setup_regs)(struct ispstat *stat, void *priv);
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/* Enable/Disable module. */
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void (*enable)(struct ispstat *stat, int enable);
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/* Verify is module is busy. */
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int (*busy)(struct ispstat *stat);
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/* Used for specific operations during generic buf process task. */
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int (*buf_process)(struct ispstat *stat);
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};
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enum ispstat_state_t {
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ISPSTAT_DISABLED = 0,
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ISPSTAT_DISABLING,
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ISPSTAT_ENABLED,
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ISPSTAT_ENABLING,
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ISPSTAT_SUSPENDED,
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};
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struct ispstat {
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struct v4l2_subdev subdev;
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struct media_pad pad; /* sink pad */
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/* Control */
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unsigned configured:1;
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unsigned update:1;
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unsigned buf_processing:1;
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unsigned sbl_ovl_recover:1;
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u8 inc_config;
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atomic_t buf_err;
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enum ispstat_state_t state; /* enabling/disabling state */
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struct isp_device *isp;
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void *priv; /* pointer to priv config struct */
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void *recover_priv; /* pointer to recover priv configuration */
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struct mutex ioctl_lock; /* serialize private ioctl */
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const struct ispstat_ops *ops;
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/* Buffer */
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u8 wait_acc_frames;
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u16 config_counter;
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u32 frame_number;
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u32 buf_size;
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u32 buf_alloc_size;
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struct dma_chan *dma_ch;
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unsigned long event_type;
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struct ispstat_buffer *buf;
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struct ispstat_buffer *active_buf;
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struct ispstat_buffer *locked_buf;
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};
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struct ispstat_generic_config {
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/*
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* Fields must be in the same order as in:
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* - omap3isp_h3a_aewb_config
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* - omap3isp_h3a_af_config
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* - omap3isp_hist_config
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*/
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u32 buf_size;
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u16 config_counter;
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};
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int omap3isp_stat_config(struct ispstat *stat, void *new_conf);
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int omap3isp_stat_request_statistics(struct ispstat *stat,
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struct omap3isp_stat_data *data);
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int omap3isp_stat_request_statistics_time32(struct ispstat *stat,
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struct omap3isp_stat_data_time32 *data);
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int omap3isp_stat_init(struct ispstat *stat, const char *name,
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const struct v4l2_subdev_ops *sd_ops);
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void omap3isp_stat_cleanup(struct ispstat *stat);
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int omap3isp_stat_subscribe_event(struct v4l2_subdev *subdev,
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struct v4l2_fh *fh,
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struct v4l2_event_subscription *sub);
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int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev,
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struct v4l2_fh *fh,
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struct v4l2_event_subscription *sub);
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int omap3isp_stat_s_stream(struct v4l2_subdev *subdev, int enable);
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int omap3isp_stat_busy(struct ispstat *stat);
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int omap3isp_stat_pcr_busy(struct ispstat *stat);
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void omap3isp_stat_suspend(struct ispstat *stat);
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void omap3isp_stat_resume(struct ispstat *stat);
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int omap3isp_stat_enable(struct ispstat *stat, u8 enable);
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void omap3isp_stat_sbl_overflow(struct ispstat *stat);
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void omap3isp_stat_isr(struct ispstat *stat);
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void omap3isp_stat_isr_frame_sync(struct ispstat *stat);
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void omap3isp_stat_dma_isr(struct ispstat *stat);
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int omap3isp_stat_register_entities(struct ispstat *stat,
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struct v4l2_device *vdev);
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void omap3isp_stat_unregister_entities(struct ispstat *stat);
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#endif /* OMAP3_ISP_STAT_H */
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