From: Dikshita Agarwal Date: Mon, 25 Aug 2025 07:00:42 +0000 (+0530) Subject: media: iris: Add encoder support for V4L2 event subscription X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f4d3867e0540caf6ef74402996aee9e55c89efaa;p=thirdparty%2Fkernel%2Fstable.git media: iris: Add encoder support for V4L2 event subscription Implement support for V4L2 event subscription on the encoder device by handling the SUBSCRIBE_EVENT and UNSUBSCRIBE_EVENT ioctls with the necessary hooks. This enables userspace applications to subscribe to V4L2 events, allowing asynchronous notification mechanisms. Tested-by: Vikash Garodia # X1E80100 Reviewed-by: Vikash Garodia Tested-by: Neil Armstrong # on SM8550-HDK Tested-by: Neil Armstrong # on SM8650-HDK Signed-off-by: Dikshita Agarwal Tested-by: Bryan O'Donoghue # x1e80100-crd Signed-off-by: Bryan O'Donoghue Signed-off-by: Hans Verkuil --- diff --git a/drivers/media/platform/qcom/iris/iris_venc.c b/drivers/media/platform/qcom/iris/iris_venc.c index 55938050249f..384b30555546 100644 --- a/drivers/media/platform/qcom/iris/iris_venc.c +++ b/drivers/media/platform/qcom/iris/iris_venc.c @@ -3,6 +3,7 @@ * Copyright (c) 2022-2025 Qualcomm Innovation Center, Inc. All rights reserved. */ +#include #include #include "iris_buffer.h" @@ -286,3 +287,16 @@ int iris_venc_validate_format(struct iris_inst *inst, u32 pixelformat) return 0; } + +int iris_venc_subscribe_event(struct iris_inst *inst, + const struct v4l2_event_subscription *sub) +{ + switch (sub->type) { + case V4L2_EVENT_EOS: + return v4l2_event_subscribe(&inst->fh, sub, 0, NULL); + case V4L2_EVENT_CTRL: + return v4l2_ctrl_subscribe_event(&inst->fh, sub); + default: + return -EINVAL; + } +} diff --git a/drivers/media/platform/qcom/iris/iris_venc.h b/drivers/media/platform/qcom/iris/iris_venc.h index 04fd41275547..2d9614ae18e8 100644 --- a/drivers/media/platform/qcom/iris/iris_venc.h +++ b/drivers/media/platform/qcom/iris/iris_venc.h @@ -14,5 +14,6 @@ int iris_venc_enum_fmt(struct iris_inst *inst, struct v4l2_fmtdesc *f); int iris_venc_try_fmt(struct iris_inst *inst, struct v4l2_format *f); int iris_venc_s_fmt(struct iris_inst *inst, struct v4l2_format *f); int iris_venc_validate_format(struct iris_inst *inst, u32 pixelformat); +int iris_venc_subscribe_event(struct iris_inst *inst, const struct v4l2_event_subscription *sub); #endif diff --git a/drivers/media/platform/qcom/iris/iris_vidc.c b/drivers/media/platform/qcom/iris/iris_vidc.c index 92a616787a30..5d9b36858e93 100644 --- a/drivers/media/platform/qcom/iris/iris_vidc.c +++ b/drivers/media/platform/qcom/iris/iris_vidc.c @@ -487,7 +487,12 @@ static int iris_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subs { struct iris_inst *inst = container_of(fh, struct iris_inst, fh); - return iris_vdec_subscribe_event(inst, sub); + if (inst->domain == DECODER) + return iris_vdec_subscribe_event(inst, sub); + else if (inst->domain == ENCODER) + return iris_venc_subscribe_event(inst, sub); + + return -EINVAL; } static int iris_dec_cmd(struct file *filp, void *fh, @@ -582,6 +587,8 @@ static const struct v4l2_ioctl_ops iris_v4l2_ioctl_ops_enc = { .vidioc_enum_framesizes = iris_enum_framesizes, .vidioc_enum_frameintervals = iris_enum_frameintervals, .vidioc_querycap = iris_querycap, + .vidioc_subscribe_event = iris_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; void iris_init_ops(struct iris_core *core)