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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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57b2c0628b
This patch adds V4L2 HVA (Hardware Video Accelerator) video encoder driver for STMicroelectronics SoC. It uses the V4L2 mem2mem framework. This patch only contains the core parts of the driver: - the V4L2 interface with the userland (hva-v4l2.c) - the hardware services (hva-hw.c) - the memory management utilities (hva-mem.c) This patch doesn't include the support of specific codec (e.g. H.264) video encoding: this support is part of subsequent patches. Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Signed-off-by: Jean-Christophe Trotin <jean-christophe.trotin@st.com> Acked-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
/*
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* Copyright (C) STMicroelectronics SA 2015
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* Authors: Yannick Fertre <yannick.fertre@st.com>
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* Hugues Fruchet <hugues.fruchet@st.com>
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* License terms: GNU General Public License (GPL), version 2
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*/
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#ifndef HVA_HW_H
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#define HVA_HW_H
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#include "hva-mem.h"
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/* HVA Versions */
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#define HVA_VERSION_UNKNOWN 0x000
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#define HVA_VERSION_V400 0x400
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/* HVA command types */
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enum hva_hw_cmd_type {
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/* RESERVED = 0x00 */
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/* RESERVED = 0x01 */
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H264_ENC = 0x02,
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/* RESERVED = 0x03 */
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/* RESERVED = 0x04 */
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/* RESERVED = 0x05 */
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/* RESERVED = 0x06 */
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/* RESERVED = 0x07 */
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REMOVE_CLIENT = 0x08,
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FREEZE_CLIENT = 0x09,
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START_CLIENT = 0x0A,
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FREEZE_ALL = 0x0B,
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START_ALL = 0x0C,
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REMOVE_ALL = 0x0D
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};
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int hva_hw_probe(struct platform_device *pdev, struct hva_dev *hva);
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void hva_hw_remove(struct hva_dev *hva);
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int hva_hw_runtime_suspend(struct device *dev);
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int hva_hw_runtime_resume(struct device *dev);
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int hva_hw_execute_task(struct hva_ctx *ctx, enum hva_hw_cmd_type cmd,
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struct hva_buffer *task);
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#endif /* HVA_HW_H */
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