Implement open, close and poll ops.
Open:
Configure the vb2 queue and v4l2 file handler. Allocate a video instance
and add the instance to core instance list.
Close:
Free the instance and remove it from core instance list.
Poll:
Wait for an event on vb2 src and vb2 dst queues.
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
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>
tristate "Qualcomm iris V4L2 decoder driver"
depends on VIDEO_DEV
depends on ARCH_QCOM || COMPILE_TEST
+ select V4L2_MEM2MEM_DEV
help
This is a V4L2 driver for Qualcomm iris video accelerator
hardware. It accelerates decoding operations on various
-iris-objs += iris_platform_sm8550.o \
+iris-objs += iris_hfi_gen1_command.o \
+ iris_hfi_gen2_command.o \
+ iris_platform_sm8550.o \
iris_probe.o \
+ iris_vidc.o \
obj-$(CONFIG_VIDEO_QCOM_IRIS) += iris.o
* @irq: iris irq
* @v4l2_dev: a holder for v4l2 device structure
* @vdev_dec: iris video device structure for decoder
+ * @iris_v4l2_file_ops: iris v4l2 file ops
* @icc_tbl: table of iris interconnects
* @icc_count: count of iris interconnects
* @pmdomain_tbl: table of iris power domains
int irq;
struct v4l2_device v4l2_dev;
struct video_device *vdev_dec;
+ const struct v4l2_file_operations *iris_v4l2_file_ops;
struct icc_bulk_data *icc_tbl;
u32 icc_count;
struct dev_pm_domain_list *pmdomain_tbl;
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef __IRIS_HFI_GEN1_H__
+#define __IRIS_HFI_GEN1_H__
+
+struct iris_inst;
+
+struct iris_inst *iris_hfi_gen1_get_instance(void);
+
+#endif
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include "iris_hfi_gen1.h"
+#include "iris_instance.h"
+
+struct iris_inst *iris_hfi_gen1_get_instance(void)
+{
+ return kzalloc(sizeof(struct iris_inst), GFP_KERNEL);
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef __IRIS_HFI_GEN2_H__
+#define __IRIS_HFI_GEN2_H__
+
+#include "iris_instance.h"
+
+/**
+ * struct iris_inst_hfi_gen2 - holds per video instance parameters for hfi_gen2
+ *
+ * @inst: pointer to iris_instance structure
+ */
+struct iris_inst_hfi_gen2 {
+ struct iris_inst inst;
+};
+
+struct iris_inst *iris_hfi_gen2_get_instance(void);
+
+#endif
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include "iris_hfi_gen2.h"
+
+struct iris_inst *iris_hfi_gen2_get_instance(void)
+{
+ return kzalloc(sizeof(struct iris_inst_hfi_gen2), GFP_KERNEL);
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef __IRIS_INSTANCE_H__
+#define __IRIS_INSTANCE_H__
+
+#include "iris_core.h"
+
+/**
+ * struct iris_inst - holds per video instance parameters
+ *
+ * @core: pointer to core structure
+ * @ctx_q_lock: lock to serialize queues related ioctls
+ * @lock: lock to seralise forward and reverse threads
+ * @fh: reference of v4l2 file handler
+ * @m2m_dev: a reference to m2m device structure
+ * @m2m_ctx: a reference to m2m context structure
+ */
+
+struct iris_inst {
+ struct iris_core *core;
+ struct mutex ctx_q_lock;/* lock to serialize queues related ioctls */
+ struct mutex lock; /* lock to serialize forward and reverse threads */
+ struct v4l2_fh fh;
+ struct v4l2_m2m_dev *m2m_dev;
+ struct v4l2_m2m_ctx *m2m_ctx;
+};
+
+#endif
};
struct iris_platform_data {
+ struct iris_inst *(*get_instance)(void);
const struct icc_info *icc_tbl;
unsigned int icc_tbl_size;
const char * const *pmdomain_tbl;
*/
#include "iris_core.h"
+#include "iris_hfi_gen2.h"
#include "iris_platform_common.h"
static const struct icc_info sm8550_icc_table[] = {
};
struct iris_platform_data sm8550_data = {
+ .get_instance = iris_hfi_gen2_get_instance,
.icc_tbl = sm8550_icc_table,
.icc_tbl_size = ARRAY_SIZE(sm8550_icc_table),
.clk_rst_tbl = sm8550_clk_reset_table,
#include <linux/reset.h>
#include "iris_core.h"
+#include "iris_vidc.h"
static int iris_init_icc(struct iris_core *core)
{
strscpy(vdev->name, "qcom-iris-decoder", sizeof(vdev->name));
vdev->release = video_device_release;
+ vdev->fops = core->iris_v4l2_file_ops;
vdev->vfl_dir = VFL_DIR_M2M;
vdev->v4l2_dev = &core->v4l2_dev;
vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
core->iris_platform_data = of_device_get_match_data(core->dev);
+ iris_init_ops(core);
ret = iris_init_resources(core);
if (ret)
return ret;
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mem2mem.h>
+
+#include "iris_vidc.h"
+#include "iris_instance.h"
+#include "iris_platform_common.h"
+
+#define IRIS_DRV_NAME "iris_driver"
+#define IRIS_BUS_NAME "platform:iris_icc"
+#define STEP_WIDTH 1
+#define STEP_HEIGHT 1
+
+static void iris_v4l2_fh_init(struct iris_inst *inst)
+{
+ v4l2_fh_init(&inst->fh, inst->core->vdev_dec);
+ v4l2_fh_add(&inst->fh);
+}
+
+static void iris_v4l2_fh_deinit(struct iris_inst *inst)
+{
+ v4l2_fh_del(&inst->fh);
+ v4l2_fh_exit(&inst->fh);
+}
+
+static inline struct iris_inst *iris_get_inst(struct file *filp, void *fh)
+{
+ return container_of(filp->private_data, struct iris_inst, fh);
+}
+
+static void iris_m2m_device_run(void *priv)
+{
+}
+
+static void iris_m2m_job_abort(void *priv)
+{
+ struct iris_inst *inst = priv;
+ struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
+
+ v4l2_m2m_job_finish(inst->m2m_dev, m2m_ctx);
+}
+
+static const struct v4l2_m2m_ops iris_m2m_ops = {
+ .device_run = iris_m2m_device_run,
+ .job_abort = iris_m2m_job_abort,
+};
+
+static int
+iris_m2m_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
+{
+ struct iris_inst *inst = priv;
+ int ret;
+
+ src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+ src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
+ src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+ src_vq->drv_priv = inst;
+ src_vq->dev = inst->core->dev;
+ src_vq->lock = &inst->ctx_q_lock;
+ ret = vb2_queue_init(src_vq);
+ if (ret)
+ return ret;
+
+ dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+ dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
+ dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+ dst_vq->drv_priv = inst;
+ dst_vq->dev = inst->core->dev;
+ dst_vq->lock = &inst->ctx_q_lock;
+
+ return vb2_queue_init(dst_vq);
+}
+
+int iris_open(struct file *filp)
+{
+ struct iris_core *core = video_drvdata(filp);
+ struct iris_inst *inst;
+ int ret;
+
+ inst = core->iris_platform_data->get_instance();
+ if (!inst)
+ return -ENOMEM;
+
+ inst->core = core;
+
+ mutex_init(&inst->ctx_q_lock);
+
+ iris_v4l2_fh_init(inst);
+
+ inst->m2m_dev = v4l2_m2m_init(&iris_m2m_ops);
+ if (IS_ERR_OR_NULL(inst->m2m_dev)) {
+ ret = -EINVAL;
+ goto fail_v4l2_fh_deinit;
+ }
+
+ inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, iris_m2m_queue_init);
+ if (IS_ERR_OR_NULL(inst->m2m_ctx)) {
+ ret = -EINVAL;
+ goto fail_m2m_release;
+ }
+
+ inst->fh.m2m_ctx = inst->m2m_ctx;
+ filp->private_data = &inst->fh;
+
+ return 0;
+
+fail_m2m_release:
+ v4l2_m2m_release(inst->m2m_dev);
+fail_v4l2_fh_deinit:
+ iris_v4l2_fh_deinit(inst);
+ mutex_destroy(&inst->ctx_q_lock);
+ kfree(inst);
+
+ return ret;
+}
+
+int iris_close(struct file *filp)
+{
+ struct iris_inst *inst = iris_get_inst(filp, NULL);
+
+ v4l2_m2m_ctx_release(inst->m2m_ctx);
+ v4l2_m2m_release(inst->m2m_dev);
+ iris_v4l2_fh_deinit(inst);
+ mutex_destroy(&inst->ctx_q_lock);
+ kfree(inst);
+ filp->private_data = NULL;
+
+ return 0;
+}
+
+static struct v4l2_file_operations iris_v4l2_file_ops = {
+ .owner = THIS_MODULE,
+ .open = iris_open,
+ .release = iris_close,
+ .unlocked_ioctl = video_ioctl2,
+ .poll = v4l2_m2m_fop_poll,
+ .mmap = v4l2_m2m_fop_mmap,
+};
+
+void iris_init_ops(struct iris_core *core)
+{
+ core->iris_v4l2_file_ops = &iris_v4l2_file_ops;
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef __IRIS_VIDC_H__
+#define __IRIS_VIDC_H__
+
+struct iris_core;
+
+void iris_init_ops(struct iris_core *core);
+int iris_open(struct file *filp);
+int iris_close(struct file *filp);
+
+#endif
projects / thirdparty / linux.git / commitdiff
