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38fc8beaba
Implement the reqbuf IOCTL op and the vb2_queue_setup vb2 op in the driver with necessary hooks. Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell XPS 13 9345) Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org> Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-HDK Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#include "iris_instance.h"
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#include "iris_vb2.h"
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int iris_vb2_queue_setup(struct vb2_queue *q,
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unsigned int *num_buffers, unsigned int *num_planes,
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unsigned int sizes[], struct device *alloc_devs[])
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{
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struct iris_inst *inst;
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struct iris_core *core;
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struct v4l2_format *f;
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int ret = 0;
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inst = vb2_get_drv_priv(q);
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mutex_lock(&inst->lock);
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core = inst->core;
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f = V4L2_TYPE_IS_OUTPUT(q->type) ? inst->fmt_src : inst->fmt_dst;
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if (*num_planes) {
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if (*num_planes != f->fmt.pix_mp.num_planes ||
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sizes[0] < f->fmt.pix_mp.plane_fmt[0].sizeimage)
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ret = -EINVAL;
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goto unlock;
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}
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if (!inst->once_per_session_set) {
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inst->once_per_session_set = true;
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ret = core->hfi_ops->session_open(inst);
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if (ret) {
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ret = -EINVAL;
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dev_err(core->dev, "session open failed\n");
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goto unlock;
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}
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}
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*num_planes = 1;
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sizes[0] = f->fmt.pix_mp.plane_fmt[0].sizeimage;
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unlock:
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mutex_unlock(&inst->lock);
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return ret;
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}
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