Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2021-2022 Digiteq Automotive
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* author: Martin Tuma <martin.tuma@digiteqautomotive.com>
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*/
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#ifndef __MGB4_IO_H__
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#define __MGB4_IO_H__
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#include <linux/math64.h>
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#include <media/v4l2-dev.h>
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#include "mgb4_core.h"
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/* Register access error indication */
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#define MGB4_ERR_NO_REG 0xFFFFFFFE
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/* Frame buffer addresses greater than 0xFFFFFFFA indicate HW errors */
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#define MGB4_ERR_QUEUE_TIMEOUT 0xFFFFFFFD
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#define MGB4_ERR_QUEUE_EMPTY 0xFFFFFFFC
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#define MGB4_ERR_QUEUE_FULL 0xFFFFFFFB
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#define MGB4_PERIOD(numerator, denominator) \
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((u32)div_u64((MGB4_HW_FREQ * (u64)(numerator)), (denominator)))
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struct mgb4_frame_buffer {
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struct vb2_v4l2_buffer vb;
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struct list_head list;
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};
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static inline struct mgb4_frame_buffer *to_frame_buffer(struct vb2_v4l2_buffer *vbuf)
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{
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return container_of(vbuf, struct mgb4_frame_buffer, vb);
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}
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static inline bool has_yuv_and_timeperframe(struct mgb4_regs *video)
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{
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u32 status = mgb4_read_reg(video, 0xD0);
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return (status & (1U << 8));
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}
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#define has_yuv(video) has_yuv_and_timeperframe(video)
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#define has_timeperframe(video) has_yuv_and_timeperframe(video)
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static inline u32 pixel_size(struct v4l2_dv_timings *timings)
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{
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struct v4l2_bt_timings *bt = &timings->bt;
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u32 height = bt->height + bt->vfrontporch + bt->vsync + bt->vbackporch;
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u32 width = bt->width + bt->hfrontporch + bt->hsync + bt->hbackporch;
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return width * height;
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}
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#endif
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