/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* TI OMAP4 ISS V4L2 Driver - ISP IPIPEIF module
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*
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* Copyright (C) 2012 Texas Instruments, Inc.
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*
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* Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
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*/
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#ifndef OMAP4_ISS_IPIPEIF_H
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#define OMAP4_ISS_IPIPEIF_H
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#include "iss_video.h"
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enum ipipeif_input_entity {
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IPIPEIF_INPUT_NONE,
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IPIPEIF_INPUT_CSI2A,
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IPIPEIF_INPUT_CSI2B
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};
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#define IPIPEIF_OUTPUT_MEMORY BIT(0)
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#define IPIPEIF_OUTPUT_VP BIT(1)
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/* Sink and source IPIPEIF pads */
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#define IPIPEIF_PAD_SINK 0
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#define IPIPEIF_PAD_SOURCE_ISIF_SF 1
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#define IPIPEIF_PAD_SOURCE_VP 2
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#define IPIPEIF_PADS_NUM 3
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/*
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* struct iss_ipipeif_device - Structure for the IPIPEIF module to store its own
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* information
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* @subdev: V4L2 subdevice
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* @pads: Sink and source media entity pads
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* @formats: Active video formats
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* @input: Active input
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* @output: Active outputs
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* @video_out: Output video node
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* @error: A hardware error occurred during capture
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* @alaw: A-law compression enabled (1) or disabled (0)
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* @lpf: Low pass filter enabled (1) or disabled (0)
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* @obclamp: Optical-black clamp enabled (1) or disabled (0)
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* @fpc_en: Faulty pixels correction enabled (1) or disabled (0)
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* @blcomp: Black level compensation configuration
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* @clamp: Optical-black or digital clamp configuration
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* @fpc: Faulty pixels correction configuration
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* @lsc: Lens shading compensation configuration
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* @update: Bitmask of controls to update during the next interrupt
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* @shadow_update: Controls update in progress by userspace
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* @syncif: Interface synchronization configuration
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* @vpcfg: Video port configuration
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* @underrun: A buffer underrun occurred and a new buffer has been queued
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* @state: Streaming state
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* @lock: Serializes shadow_update with interrupt handler
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* @wait: Wait queue used to stop the module
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* @stopping: Stopping state
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* @ioctl_lock: Serializes ioctl calls and LSC requests freeing
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*/
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struct iss_ipipeif_device {
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struct v4l2_subdev subdev;
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struct media_pad pads[IPIPEIF_PADS_NUM];
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struct v4l2_mbus_framefmt formats[IPIPEIF_PADS_NUM];
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enum ipipeif_input_entity input;
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unsigned int output;
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struct iss_video video_out;
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unsigned int error;
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enum iss_pipeline_stream_state state;
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wait_queue_head_t wait;
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atomic_t stopping;
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};
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struct iss_device;
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int omap4iss_ipipeif_init(struct iss_device *iss);
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int omap4iss_ipipeif_create_links(struct iss_device *iss);
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void omap4iss_ipipeif_cleanup(struct iss_device *iss);
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int omap4iss_ipipeif_register_entities(struct iss_ipipeif_device *ipipeif,
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struct v4l2_device *vdev);
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void omap4iss_ipipeif_unregister_entities(struct iss_ipipeif_device *ipipeif);
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int omap4iss_ipipeif_busy(struct iss_ipipeif_device *ipipeif);
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void omap4iss_ipipeif_isr(struct iss_ipipeif_device *ipipeif, u32 events);
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void omap4iss_ipipeif_restore_context(struct iss_device *iss);
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void omap4iss_ipipeif_max_rate(struct iss_ipipeif_device *ipipeif,
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unsigned int *max_rate);
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#endif /* OMAP4_ISS_IPIPEIF_H */
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