diff options
Diffstat (limited to 'drivers/media/platform/omap3isp/ispstat.h')
| -rw-r--r-- | drivers/media/platform/omap3isp/ispstat.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/drivers/media/platform/omap3isp/ispstat.h b/drivers/media/platform/omap3isp/ispstat.h new file mode 100644 index 000000000..b548e617c --- /dev/null +++ b/drivers/media/platform/omap3isp/ispstat.h @@ -0,0 +1,156 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * ispstat.h + * + * TI OMAP3 ISP - Statistics core + * + * Copyright (C) 2010 Nokia Corporation + * Copyright (C) 2009 Texas Instruments, Inc + * + * Contacts: David Cohen <dacohen@gmail.com> + * Laurent Pinchart <laurent.pinchart@ideasonboard.com> + * Sakari Ailus <sakari.ailus@iki.fi> + */ + +#ifndef OMAP3_ISP_STAT_H +#define OMAP3_ISP_STAT_H + +#include <linux/types.h> +#include <linux/omap3isp.h> +#include <media/v4l2-event.h> + +#include "isp.h" +#include "ispvideo.h" + +#define STAT_MAX_BUFS 5 +#define STAT_NEVENTS 8 + +#define STAT_BUF_DONE 0 /* Buffer is ready */ +#define STAT_NO_BUF 1 /* An error has occurred */ +#define STAT_BUF_WAITING_DMA 2 /* Histogram only: DMA is running */ + +struct dma_chan; +struct ispstat; + +struct ispstat_buffer { + struct sg_table sgt; + void *virt_addr; + dma_addr_t dma_addr; + struct timespec64 ts; + u32 buf_size; + u32 frame_number; + u16 config_counter; + u8 empty; +}; + +struct ispstat_ops { + /* + * Validate new params configuration. + * new_conf->buf_size value must be changed to the exact buffer size + * necessary for the new configuration if it's smaller. + */ + int (*validate_params)(struct ispstat *stat, void *new_conf); + + /* + * Save new params configuration. + * stat->priv->buf_size value must be set to the exact buffer size for + * the new configuration. + * stat->update is set to 1 if new configuration is different than + * current one. + */ + void (*set_params)(struct ispstat *stat, void *new_conf); + + /* Apply stored configuration. */ + void (*setup_regs)(struct ispstat *stat, void *priv); + + /* Enable/Disable module. */ + void (*enable)(struct ispstat *stat, int enable); + + /* Verify is module is busy. */ + int (*busy)(struct ispstat *stat); + + /* Used for specific operations during generic buf process task. */ + int (*buf_process)(struct ispstat *stat); +}; + +enum ispstat_state_t { + ISPSTAT_DISABLED = 0, + ISPSTAT_DISABLING, + ISPSTAT_ENABLED, + ISPSTAT_ENABLING, + ISPSTAT_SUSPENDED, +}; + +struct ispstat { + struct v4l2_subdev subdev; + struct media_pad pad; /* sink pad */ + + /* Control */ + unsigned configured:1; + unsigned update:1; + unsigned buf_processing:1; + unsigned sbl_ovl_recover:1; + u8 inc_config; + atomic_t buf_err; + enum ispstat_state_t state; /* enabling/disabling state */ + struct isp_device *isp; + void *priv; /* pointer to priv config struct */ + void *recover_priv; /* pointer to recover priv configuration */ + struct mutex ioctl_lock; /* serialize private ioctl */ + + const struct ispstat_ops *ops; + + /* Buffer */ + u8 wait_acc_frames; + u16 config_counter; + u32 frame_number; + u32 buf_size; + u32 buf_alloc_size; + struct dma_chan *dma_ch; + unsigned long event_type; + struct ispstat_buffer *buf; + struct ispstat_buffer *active_buf; + struct ispstat_buffer *locked_buf; +}; + +struct ispstat_generic_config { + /* + * Fields must be in the same order as in: + * - omap3isp_h3a_aewb_config + * - omap3isp_h3a_af_config + * - omap3isp_hist_config + */ + u32 buf_size; + u16 config_counter; +}; + +int omap3isp_stat_config(struct ispstat *stat, void *new_conf); +int omap3isp_stat_request_statistics(struct ispstat *stat, + struct omap3isp_stat_data *data); +int omap3isp_stat_request_statistics_time32(struct ispstat *stat, + struct omap3isp_stat_data_time32 *data); +int omap3isp_stat_init(struct ispstat *stat, const char *name, + const struct v4l2_subdev_ops *sd_ops); +void omap3isp_stat_cleanup(struct ispstat *stat); +int omap3isp_stat_subscribe_event(struct v4l2_subdev *subdev, + struct v4l2_fh *fh, + struct v4l2_event_subscription *sub); +int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev, + struct v4l2_fh *fh, + struct v4l2_event_subscription *sub); +int omap3isp_stat_s_stream(struct v4l2_subdev *subdev, int enable); + +int omap3isp_stat_busy(struct ispstat *stat); +int omap3isp_stat_pcr_busy(struct ispstat *stat); +void omap3isp_stat_suspend(struct ispstat *stat); +void omap3isp_stat_resume(struct ispstat *stat); +int omap3isp_stat_enable(struct ispstat *stat, u8 enable); +void omap3isp_stat_sbl_overflow(struct ispstat *stat); +void omap3isp_stat_isr(struct ispstat *stat); +void omap3isp_stat_isr_frame_sync(struct ispstat *stat); +void omap3isp_stat_dma_isr(struct ispstat *stat); +int omap3isp_stat_register_entities(struct ispstat *stat, + struct v4l2_device *vdev); +void omap3isp_stat_unregister_entities(struct ispstat *stat); + +#endif /* OMAP3_ISP_STAT_H */ |