LXR linux/drivers/staging/media/omap4iss/iss

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * TI OMAP4 ISS V4L2 Driver - ISP IPIPEIF module
   4 *
   5 * Copyright (C) 2012 Texas Instruments, Inc.
   6 *
   7 * Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
   8 */
   9
  10#ifndef OMAP4_ISS_IPIPEIF_H
  11#define OMAP4_ISS_IPIPEIF_H
  12
  13#include "iss_video.h"
  14
  15enum ipipeif_input_entity {
  16        IPIPEIF_INPUT_NONE,
  17        IPIPEIF_INPUT_CSI2A,
  18        IPIPEIF_INPUT_CSI2B
  19};
  20
  21#define IPIPEIF_OUTPUT_MEMORY                   BIT(0)
  22#define IPIPEIF_OUTPUT_VP                       BIT(1)
  23
  24/* Sink and source IPIPEIF pads */
  25#define IPIPEIF_PAD_SINK                        0
  26#define IPIPEIF_PAD_SOURCE_ISIF_SF              1
  27#define IPIPEIF_PAD_SOURCE_VP                   2
  28#define IPIPEIF_PADS_NUM                        3
  29
  30/*
  31 * struct iss_ipipeif_device - Structure for the IPIPEIF module to store its own
  32 *                          information
  33 * @subdev: V4L2 subdevice
  34 * @pads: Sink and source media entity pads
  35 * @formats: Active video formats
  36 * @input: Active input
  37 * @output: Active outputs
  38 * @video_out: Output video node
  39 * @error: A hardware error occurred during capture
  40 * @alaw: A-law compression enabled (1) or disabled (0)
  41 * @lpf: Low pass filter enabled (1) or disabled (0)
  42 * @obclamp: Optical-black clamp enabled (1) or disabled (0)
  43 * @fpc_en: Faulty pixels correction enabled (1) or disabled (0)
  44 * @blcomp: Black level compensation configuration
  45 * @clamp: Optical-black or digital clamp configuration
  46 * @fpc: Faulty pixels correction configuration
  47 * @lsc: Lens shading compensation configuration
  48 * @update: Bitmask of controls to update during the next interrupt
  49 * @shadow_update: Controls update in progress by userspace
  50 * @syncif: Interface synchronization configuration
  51 * @vpcfg: Video port configuration
  52 * @underrun: A buffer underrun occurred and a new buffer has been queued
  53 * @state: Streaming state
  54 * @lock: Serializes shadow_update with interrupt handler
  55 * @wait: Wait queue used to stop the module
  56 * @stopping: Stopping state
  57 * @ioctl_lock: Serializes ioctl calls and LSC requests freeing
  58 */
  59struct iss_ipipeif_device {
  60        struct v4l2_subdev subdev;
  61        struct media_pad pads[IPIPEIF_PADS_NUM];
  62        struct v4l2_mbus_framefmt formats[IPIPEIF_PADS_NUM];
  63
  64        enum ipipeif_input_entity input;
  65        unsigned int output;
  66        struct iss_video video_out;
  67        unsigned int error;
  68
  69        enum iss_pipeline_stream_state state;
  70        wait_queue_head_t wait;
  71        atomic_t stopping;
  72};
  73
  74struct iss_device;
  75
  76int omap4iss_ipipeif_init(struct iss_device *iss);
  77int omap4iss_ipipeif_create_links(struct iss_device *iss);
  78void omap4iss_ipipeif_cleanup(struct iss_device *iss);
  79int omap4iss_ipipeif_register_entities(struct iss_ipipeif_device *ipipeif,
  80                                       struct v4l2_device *vdev);
  81void omap4iss_ipipeif_unregister_entities(struct iss_ipipeif_device *ipipeif);
  82
  83int omap4iss_ipipeif_busy(struct iss_ipipeif_device *ipipeif);
  84void omap4iss_ipipeif_isr(struct iss_ipipeif_device *ipipeif, u32 events);
  85void omap4iss_ipipeif_restore_context(struct iss_device *iss);
  86void omap4iss_ipipeif_max_rate(struct iss_ipipeif_device *ipipeif,
  87                               unsigned int *max_rate);
  88
  89#endif  /* OMAP4_ISS_IPIPEIF_H */
  90