| 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
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| 2 | /* |
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| 3 | * TI OMAP4 ISS V4L2 Driver - ISP RESIZER module |
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| 4 | * |
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| 5 | * Copyright (C) 2012 Texas Instruments, Inc. |
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| 6 | * |
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| 7 | * Author: Sergio Aguirre <sergio.a.aguirre@gmail.com> |
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| 8 | */ |
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| 9 | |
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| 10 | #ifndef OMAP4_ISS_RESIZER_H |
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| 11 | #define OMAP4_ISS_RESIZER_H |
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| 12 | |
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| 13 | #include "iss_video.h" |
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| 14 | |
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| 15 | enum resizer_input_entity { |
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| 16 | RESIZER_INPUT_NONE, |
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| 17 | RESIZER_INPUT_IPIPE, |
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| 18 | RESIZER_INPUT_IPIPEIF |
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| 19 | }; |
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| 20 | |
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| 21 | #define RESIZER_OUTPUT_MEMORY BIT(0) |
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| 22 | |
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| 23 | /* Sink and source RESIZER pads */ |
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| 24 | #define RESIZER_PAD_SINK 0 |
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| 25 | #define RESIZER_PAD_SOURCE_MEM 1 |
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| 26 | #define RESIZER_PADS_NUM 2 |
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| 27 | |
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| 28 | /* |
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| 29 | * struct iss_resizer_device - Structure for the RESIZER module to store its own |
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| 30 | * information |
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| 31 | * @subdev: V4L2 subdevice |
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| 32 | * @pads: Sink and source media entity pads |
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| 33 | * @formats: Active video formats |
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| 34 | * @input: Active input |
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| 35 | * @output: Active outputs |
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| 36 | * @video_out: Output video node |
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| 37 | * @error: A hardware error occurred during capture |
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| 38 | * @state: Streaming state |
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| 39 | * @wait: Wait queue used to stop the module |
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| 40 | * @stopping: Stopping state |
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| 41 | */ |
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| 42 | struct iss_resizer_device { |
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| 43 | struct v4l2_subdev subdev; |
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| 44 | struct media_pad pads[RESIZER_PADS_NUM]; |
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| 45 | struct v4l2_mbus_framefmt formats[RESIZER_PADS_NUM]; |
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| 46 | |
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| 47 | enum resizer_input_entity input; |
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| 48 | unsigned int output; |
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| 49 | struct iss_video video_out; |
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| 50 | unsigned int error; |
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| 51 | |
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| 52 | enum iss_pipeline_stream_state state; |
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| 53 | wait_queue_head_t wait; |
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| 54 | atomic_t stopping; |
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| 55 | }; |
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| 56 | |
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| 57 | struct iss_device; |
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| 58 | |
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| 59 | int omap4iss_resizer_init(struct iss_device *iss); |
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| 60 | int omap4iss_resizer_create_links(struct iss_device *iss); |
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| 61 | void omap4iss_resizer_cleanup(struct iss_device *iss); |
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| 62 | int omap4iss_resizer_register_entities(struct iss_resizer_device *resizer, |
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| 63 | struct v4l2_device *vdev); |
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| 64 | void omap4iss_resizer_unregister_entities(struct iss_resizer_device *resizer); |
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| 65 | |
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| 66 | int omap4iss_resizer_busy(struct iss_resizer_device *resizer); |
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| 67 | void omap4iss_resizer_isr(struct iss_resizer_device *resizer, u32 events); |
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| 68 | void omap4iss_resizer_restore_context(struct iss_device *iss); |
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| 69 | void omap4iss_resizer_max_rate(struct iss_resizer_device *resizer, |
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| 70 | unsigned int *max_rate); |
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| 71 | |
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| 72 | #endif /* OMAP4_ISS_RESIZER_H */ |
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| 73 | |
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