media: chips-media: wave5: Add the v4l2 layer

Add the decoder and encoder implementing the v4l2
API. This patch also adds the Makefile and the VIDEO_WAVE_VPU config
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Nas Chung <nas.chung@chipsnmedia.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/platform/chips-media/Kconfig

@@ -3,3 +3,4 @@
 comment "Chips&Media media platform drivers"
 
 source "drivers/media/platform/chips-media/coda/Kconfig"
+source "drivers/media/platform/chips-media/wave5/Kconfig"

drivers/media/platform/chips-media/Makefile

 # SPDX-License-Identifier: GPL-2.0-only
 
 obj-y += coda/
+obj-y += wave5/

drivers/media/platform/chips-media/wave5/Kconfig

+# SPDX-License-Identifier: GPL-2.0
+config VIDEO_WAVE_VPU
+	tristate "Chips&Media Wave Codec Driver"
+	depends on VIDEO_DEV
+	select VIDEOBUF2_DMA_CONTIG
+	select VIDEOBUF2_VMALLOC
+	select V4L2_MEM2MEM_DEV
+	help
+	  Chips&Media stateful encoder and decoder driver.
+	  The driver supports HEVC and H264 formats.
+	  To compile this driver as modules, choose M here: the
+	  modules will be called wave5.

drivers/media/platform/chips-media/wave5/Makefile

+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_VIDEO_WAVE_VPU) += wave5.o
+wave5-objs +=  	wave5-hw.o \
+		wave5-vpuapi.o \
+		wave5-vdi.o \
+		wave5-vpu-dec.o \
+		wave5-vpu.o \
+		wave5-vpu-enc.o \
+		wave5-helper.o

drivers/media/platform/chips-media/wave5/wave5-helper.c

+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+/*
+ * Wave5 series multi-standard codec IP - decoder interface
+ *
+ * Copyright (C) 2021-2023 CHIPS&MEDIA INC
+ */
+
+#include "wave5-helper.h"
+
+const char *state_to_str(enum vpu_instance_state state)
+{
+	switch (state) {
+	case VPU_INST_STATE_NONE:
+		return "NONE";
+	case VPU_INST_STATE_OPEN:
+		return "OPEN";
+	case VPU_INST_STATE_INIT_SEQ:
+		return "INIT_SEQ";
+	case VPU_INST_STATE_PIC_RUN:
+		return "PIC_RUN";
+	case VPU_INST_STATE_STOP:
+		return "STOP";
+	default:
+		return "UNKNOWN";
+	}
+}
+
+void wave5_cleanup_instance(struct vpu_instance *inst)
+{
+	int i;
+
+	if (list_is_singular(&inst->list))
+		wave5_vdi_free_sram(inst->dev);
+
+	for (i = 0; i < inst->fbc_buf_count; i++)
+		wave5_vpu_dec_reset_framebuffer(inst, i);
+
+	wave5_vdi_free_dma_memory(inst->dev, &inst->bitstream_vbuf);
+	v4l2_ctrl_handler_free(&inst->v4l2_ctrl_hdl);
+	if (inst->v4l2_fh.vdev) {
+		v4l2_fh_del(&inst->v4l2_fh);
+		v4l2_fh_exit(&inst->v4l2_fh);
+	}
+	list_del_init(&inst->list);
+	ida_free(&inst->dev->inst_ida, inst->id);
+	kfree(inst->codec_info);
+	kfree(inst);
+}
+
+int wave5_vpu_release_device(struct file *filp,
+			     int (*close_func)(struct vpu_instance *inst, u32 *fail_res),
+			     char *name)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(filp->private_data);
+
+	v4l2_m2m_ctx_release(inst->v4l2_fh.m2m_ctx);
+	if (inst->state != VPU_INST_STATE_NONE) {
+		u32 fail_res;
+		int ret;
+
+		ret = close_func(inst, &fail_res);
+		if (fail_res == WAVE5_SYSERR_VPU_STILL_RUNNING) {
+			dev_err(inst->dev->dev, "%s close failed, device is still running\n",
+				name);
+			return -EBUSY;
+		}
+		if (ret && ret != -EIO) {
+			dev_err(inst->dev->dev, "%s close, fail: %d\n", name, ret);
+			return ret;
+		}
+	}
+
+	wave5_cleanup_instance(inst);
+
+	return 0;
+}
+
+int wave5_vpu_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq,
+			 const struct vb2_ops *ops)
+{
+	struct vpu_instance *inst = priv;
+	int ret;
+
+	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+	src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
+	src_vq->mem_ops = &vb2_dma_contig_memops;
+	src_vq->ops = ops;
+	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	src_vq->buf_struct_size = sizeof(struct vpu_src_buffer);
+	src_vq->drv_priv = inst;
+	src_vq->lock = &inst->dev->dev_lock;
+	src_vq->dev = inst->dev->v4l2_dev.dev;
+	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->mem_ops = &vb2_dma_contig_memops;
+	dst_vq->ops = ops;
+	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	dst_vq->buf_struct_size = sizeof(struct vpu_src_buffer);
+	dst_vq->drv_priv = inst;
+	dst_vq->lock = &inst->dev->dev_lock;
+	dst_vq->dev = inst->dev->v4l2_dev.dev;
+	ret = vb2_queue_init(dst_vq);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+int wave5_vpu_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	bool is_decoder = inst->type == VPU_INST_TYPE_DEC;
+
+	dev_dbg(inst->dev->dev, "%s: [%s] type: %u id: %u | flags: %u\n", __func__,
+		is_decoder ? "decoder" : "encoder", sub->type, sub->id, sub->flags);
+
+	switch (sub->type) {
+	case V4L2_EVENT_EOS:
+		return v4l2_event_subscribe(fh, sub, 0, NULL);
+	case V4L2_EVENT_SOURCE_CHANGE:
+		if (is_decoder)
+			return v4l2_src_change_event_subscribe(fh, sub);
+		return -EINVAL;
+	case V4L2_EVENT_CTRL:
+		return v4l2_ctrl_subscribe_event(fh, sub);
+	default:
+		return -EINVAL;
+	}
+}
+
+int wave5_vpu_g_fmt_out(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	int i;
+
+	f->fmt.pix_mp.width = inst->src_fmt.width;
+	f->fmt.pix_mp.height = inst->src_fmt.height;
+	f->fmt.pix_mp.pixelformat = inst->src_fmt.pixelformat;
+	f->fmt.pix_mp.field = inst->src_fmt.field;
+	f->fmt.pix_mp.flags = inst->src_fmt.flags;
+	f->fmt.pix_mp.num_planes = inst->src_fmt.num_planes;
+	for (i = 0; i < f->fmt.pix_mp.num_planes; i++) {
+		f->fmt.pix_mp.plane_fmt[i].bytesperline = inst->src_fmt.plane_fmt[i].bytesperline;
+		f->fmt.pix_mp.plane_fmt[i].sizeimage = inst->src_fmt.plane_fmt[i].sizeimage;
+	}
+
+	f->fmt.pix_mp.colorspace = inst->colorspace;
+	f->fmt.pix_mp.ycbcr_enc = inst->ycbcr_enc;
+	f->fmt.pix_mp.quantization = inst->quantization;
+	f->fmt.pix_mp.xfer_func = inst->xfer_func;
+
+	return 0;
+}
+
+const struct vpu_format *wave5_find_vpu_fmt(unsigned int v4l2_pix_fmt,
+					    const struct vpu_format fmt_list[MAX_FMTS])
+{
+	unsigned int index;
+
+	for (index = 0; index < MAX_FMTS; index++) {
+		if (fmt_list[index].v4l2_pix_fmt == v4l2_pix_fmt)
+			return &fmt_list[index];
+	}
+
+	return NULL;
+}
+
+const struct vpu_format *wave5_find_vpu_fmt_by_idx(unsigned int idx,
+						   const struct vpu_format fmt_list[MAX_FMTS])
+{
+	if (idx >= MAX_FMTS)
+		return NULL;
+
+	if (!fmt_list[idx].v4l2_pix_fmt)
+		return NULL;
+
+	return &fmt_list[idx];
+}
+
+enum wave_std wave5_to_vpu_std(unsigned int v4l2_pix_fmt, enum vpu_instance_type type)
+{
+	switch (v4l2_pix_fmt) {
+	case V4L2_PIX_FMT_H264:
+		return type == VPU_INST_TYPE_DEC ? W_AVC_DEC : W_AVC_ENC;
+	case V4L2_PIX_FMT_HEVC:
+		return type == VPU_INST_TYPE_DEC ? W_HEVC_DEC : W_HEVC_ENC;
+	default:
+		return STD_UNKNOWN;
+	}
+}
+
+void wave5_return_bufs(struct vb2_queue *q, u32 state)
+{
+	struct vpu_instance *inst = vb2_get_drv_priv(q);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct v4l2_ctrl_handler v4l2_ctrl_hdl = inst->v4l2_ctrl_hdl;
+	struct vb2_v4l2_buffer *vbuf;
+
+	for (;;) {
+		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+			vbuf = v4l2_m2m_src_buf_remove(m2m_ctx);
+		else
+			vbuf = v4l2_m2m_dst_buf_remove(m2m_ctx);
+		if (!vbuf)
+			return;
+		v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req, &v4l2_ctrl_hdl);
+		v4l2_m2m_buf_done(vbuf, state);
+	}
+}

drivers/media/platform/chips-media/wave5/wave5-helper.h

+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/*
+ * Wave5 series multi-standard codec IP - basic types
+ *
+ * Copyright (C) 2021-2023 CHIPS&MEDIA INC
+ */
+
+#ifndef __WAVE_HELPER_H__
+#define __WAVE_HELPER_H__
+
+#include "wave5-vpu.h"
+
+#define FMT_TYPES	2
+#define MAX_FMTS	12
+
+const char *state_to_str(enum vpu_instance_state state);
+void wave5_cleanup_instance(struct vpu_instance *inst);
+int wave5_vpu_release_device(struct file *filp,
+			     int (*close_func)(struct vpu_instance *inst, u32 *fail_res),
+			     char *name);
+int wave5_vpu_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq,
+			 const struct vb2_ops *ops);
+int wave5_vpu_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub);
+int wave5_vpu_g_fmt_out(struct file *file, void *fh, struct v4l2_format *f);
+const struct vpu_format *wave5_find_vpu_fmt(unsigned int v4l2_pix_fmt,
+					    const struct vpu_format fmt_list[MAX_FMTS]);
+const struct vpu_format *wave5_find_vpu_fmt_by_idx(unsigned int idx,
+						   const struct vpu_format fmt_list[MAX_FMTS]);
+enum wave_std wave5_to_vpu_std(unsigned int v4l2_pix_fmt, enum vpu_instance_type type);
+void wave5_return_bufs(struct vb2_queue *q, u32 state);
+#endif

drivers/media/platform/chips-media/wave5/wave5-vpu.c

+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+/*
+ * Wave5 series multi-standard codec IP - platform driver
+ *
+ * Copyright (C) 2021-2023 CHIPS&MEDIA INC
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+#include "wave5-vpu.h"
+#include "wave5-regdefine.h"
+#include "wave5-vpuconfig.h"
+#include "wave5.h"
+
+#define VPU_PLATFORM_DEVICE_NAME "vdec"
+#define VPU_CLK_NAME "vcodec"
+
+#define WAVE5_IS_ENC BIT(0)
+#define WAVE5_IS_DEC BIT(1)
+
+struct wave5_match_data {
+	int flags;
+	const char *fw_name;
+};
+
+int wave5_vpu_wait_interrupt(struct vpu_instance *inst, unsigned int timeout)
+{
+	int ret;
+
+	ret = wait_for_completion_timeout(&inst->irq_done,
+					  msecs_to_jiffies(timeout));
+	if (!ret)
+		return -ETIMEDOUT;
+
+	reinit_completion(&inst->irq_done);
+
+	return 0;
+}
+
+static irqreturn_t wave5_vpu_irq_thread(int irq, void *dev_id)
+{
+	u32 seq_done;
+	u32 cmd_done;
+	u32 irq_reason;
+	struct vpu_instance *inst;
+	struct vpu_device *dev = dev_id;
+
+	if (wave5_vdi_read_register(dev, W5_VPU_VPU_INT_STS)) {
+		irq_reason = wave5_vdi_read_register(dev, W5_VPU_VINT_REASON);
+		wave5_vdi_write_register(dev, W5_VPU_VINT_REASON_CLR, irq_reason);
+		wave5_vdi_write_register(dev, W5_VPU_VINT_CLEAR, 0x1);
+
+		list_for_each_entry(inst, &dev->instances, list) {
+			seq_done = wave5_vdi_read_register(dev, W5_RET_SEQ_DONE_INSTANCE_INFO);
+			cmd_done = wave5_vdi_read_register(dev, W5_RET_QUEUE_CMD_DONE_INST);
+
+			if (irq_reason & BIT(INT_WAVE5_INIT_SEQ) ||
+			    irq_reason & BIT(INT_WAVE5_ENC_SET_PARAM)) {
+				if (seq_done & BIT(inst->id)) {
+					seq_done &= ~BIT(inst->id);
+					wave5_vdi_write_register(dev, W5_RET_SEQ_DONE_INSTANCE_INFO,
+								 seq_done);
+					complete(&inst->irq_done);
+				}
+			}
+
+			if (irq_reason & BIT(INT_WAVE5_DEC_PIC) ||
+			    irq_reason & BIT(INT_WAVE5_ENC_PIC)) {
+				if (cmd_done & BIT(inst->id)) {
+					cmd_done &= ~BIT(inst->id);
+					wave5_vdi_write_register(dev, W5_RET_QUEUE_CMD_DONE_INST,
+								 cmd_done);
+					inst->ops->finish_process(inst);
+				}
+			}
+
+			wave5_vpu_clear_interrupt(inst, irq_reason);
+		}
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int wave5_vpu_load_firmware(struct device *dev, const char *fw_name,
+				   u32 *revision)
+{
+	const struct firmware *fw;
+	int ret;
+	unsigned int product_id;
+
+	ret = request_firmware(&fw, fw_name, dev);
+	if (ret) {
+		dev_err(dev, "request_firmware, fail: %d\n", ret);
+		return ret;
+	}
+
+	ret = wave5_vpu_init_with_bitcode(dev, (u8 *)fw->data, fw->size);
+	if (ret) {
+		dev_err(dev, "vpu_init_with_bitcode, fail: %d\n", ret);
+		release_firmware(fw);
+		return ret;
+	}
+	release_firmware(fw);
+
+	ret = wave5_vpu_get_version_info(dev, revision, &product_id);
+	if (ret) {
+		dev_err(dev, "vpu_get_version_info fail: %d\n", ret);
+		return ret;
+	}
+
+	dev_dbg(dev, "%s: enum product_id: %08x, fw revision: %u\n",
+		__func__, product_id, *revision);
+
+	return 0;
+}
+
+static int wave5_vpu_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct vpu_device *dev;
+	const struct wave5_match_data *match_data;
+	u32 fw_revision;
+
+	match_data = device_get_match_data(&pdev->dev);
+	if (!match_data) {
+		dev_err(&pdev->dev, "missing device match data\n");
+		return -EINVAL;
+	}
+
+	/* physical addresses limited to 32 bits */
+	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to set DMA mask: %d\n", ret);
+		return ret;
+	}
+
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	dev->vdb_register = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(dev->vdb_register))
+		return PTR_ERR(dev->vdb_register);
+	ida_init(&dev->inst_ida);
+
+	mutex_init(&dev->dev_lock);
+	mutex_init(&dev->hw_lock);
+	dev_set_drvdata(&pdev->dev, dev);
+	dev->dev = &pdev->dev;
+
+	ret = devm_clk_bulk_get_all(&pdev->dev, &dev->clks);
+
+	/* continue without clock, assume externally managed */
+	if (ret < 0) {
+		dev_warn(&pdev->dev, "Getting clocks, fail: %d\n", ret);
+		ret = 0;
+	}
+	dev->num_clks = ret;
+
+	ret = clk_bulk_prepare_enable(dev->num_clks, dev->clks);
+	if (ret) {
+		dev_err(&pdev->dev, "Enabling clocks, fail: %d\n", ret);
+		return ret;
+	}
+
+	ret = of_property_read_u32(pdev->dev.of_node, "sram-size",
+				   &dev->sram_size);
+	if (ret) {
+		dev_warn(&pdev->dev, "sram-size not found\n");
+		dev->sram_size = 0;
+	}
+
+	dev->sram_pool = of_gen_pool_get(pdev->dev.of_node, "sram", 0);
+	if (!dev->sram_pool)
+		dev_warn(&pdev->dev, "sram node not found\n");
+
+	dev->product_code = wave5_vdi_read_register(dev, VPU_PRODUCT_CODE_REGISTER);
+	ret = wave5_vdi_init(&pdev->dev);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "wave5_vdi_init, fail: %d\n", ret);
+		goto err_clk_dis;
+	}
+	dev->product = wave5_vpu_get_product_id(dev);
+
+	INIT_LIST_HEAD(&dev->instances);
+	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "v4l2_device_register, fail: %d\n", ret);
+		goto err_vdi_release;
+	}
+
+	if (match_data->flags & WAVE5_IS_DEC) {
+		ret = wave5_vpu_dec_register_device(dev);
+		if (ret) {
+			dev_err(&pdev->dev, "wave5_vpu_dec_register_device, fail: %d\n", ret);
+			goto err_v4l2_unregister;
+		}
+	}
+	if (match_data->flags & WAVE5_IS_ENC) {
+		ret = wave5_vpu_enc_register_device(dev);
+		if (ret) {
+			dev_err(&pdev->dev, "wave5_vpu_enc_register_device, fail: %d\n", ret);
+			goto err_dec_unreg;
+		}
+	}
+
+	dev->irq = platform_get_irq(pdev, 0);
+	if (dev->irq < 0) {
+		dev_err(&pdev->dev, "failed to get irq resource\n");
+		ret = -ENXIO;
+		goto err_enc_unreg;
+	}
+
+	ret = devm_request_threaded_irq(&pdev->dev, dev->irq, NULL,
+					wave5_vpu_irq_thread, IRQF_ONESHOT, "vpu_irq", dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Register interrupt handler, fail: %d\n", ret);
+		goto err_enc_unreg;
+	}
+
+	ret = wave5_vpu_load_firmware(&pdev->dev, match_data->fw_name, &fw_revision);
+	if (ret) {
+		dev_err(&pdev->dev, "wave5_vpu_load_firmware, fail: %d\n", ret);
+		goto err_enc_unreg;
+	}
+
+	dev_info(&pdev->dev, "Added wave5 driver with caps: %s %s\n",
+		 (match_data->flags & WAVE5_IS_ENC) ? "'ENCODE'" : "",
+		 (match_data->flags & WAVE5_IS_DEC) ? "'DECODE'" : "");
+	dev_info(&pdev->dev, "Product Code:      0x%x\n", dev->product_code);
+	dev_info(&pdev->dev, "Firmware Revision: %u\n", fw_revision);
+	return 0;
+
+err_enc_unreg:
+	if (match_data->flags & WAVE5_IS_ENC)
+		wave5_vpu_enc_unregister_device(dev);
+err_dec_unreg:
+	if (match_data->flags & WAVE5_IS_DEC)
+		wave5_vpu_dec_unregister_device(dev);
+err_v4l2_unregister:
+	v4l2_device_unregister(&dev->v4l2_dev);
+err_vdi_release:
+	wave5_vdi_release(&pdev->dev);
+err_clk_dis:
+	clk_bulk_disable_unprepare(dev->num_clks, dev->clks);
+
+	return ret;
+}
+
+static int wave5_vpu_remove(struct platform_device *pdev)
+{
+	struct vpu_device *dev = dev_get_drvdata(&pdev->dev);
+
+	mutex_destroy(&dev->dev_lock);
+	mutex_destroy(&dev->hw_lock);
+	clk_bulk_disable_unprepare(dev->num_clks, dev->clks);
+	wave5_vpu_enc_unregister_device(dev);
+	wave5_vpu_dec_unregister_device(dev);
+	v4l2_device_unregister(&dev->v4l2_dev);
+	wave5_vdi_release(&pdev->dev);
+	ida_destroy(&dev->inst_ida);
+
+	return 0;
+}
+
+static const struct wave5_match_data ti_wave521c_data = {
+	.flags = WAVE5_IS_ENC | WAVE5_IS_DEC,
+	.fw_name = "cnm/wave521c_k3_codec_fw.bin",
+};
+
+static const struct of_device_id wave5_dt_ids[] = {
+	{ .compatible = "ti,k3-j721s2-wave521c", .data = &ti_wave521c_data },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, wave5_dt_ids);
+
+static struct platform_driver wave5_vpu_driver = {
+	.driver = {
+		.name = VPU_PLATFORM_DEVICE_NAME,
+		.of_match_table = of_match_ptr(wave5_dt_ids),
+		},
+	.probe = wave5_vpu_probe,
+	.remove = wave5_vpu_remove,
+};
+
+module_platform_driver(wave5_vpu_driver);
+MODULE_DESCRIPTION("chips&media VPU V4L2 driver");
+MODULE_LICENSE("Dual BSD/GPL");

drivers/media/platform/chips-media/wave5/wave5-vpu.h

+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/*
+ * Wave5 series multi-standard codec IP - basic types
+ *
+ * Copyright (C) 2021-2023 CHIPS&MEDIA INC
+ */
+#ifndef __VPU_DRV_H__
+#define __VPU_DRV_H__
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-fh.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/videobuf2-dma-contig.h>
+#include <media/videobuf2-vmalloc.h>
+#include "wave5-vpuconfig.h"
+#include "wave5-vpuapi.h"
+
+#define VPU_BUF_SYNC_TO_DEVICE 0
+#define VPU_BUF_SYNC_FROM_DEVICE 1
+
+struct vpu_src_buffer {
+	struct v4l2_m2m_buffer	v4l2_m2m_buf;
+	struct list_head	list;
+	bool			consumed;
+};
+
+struct vpu_dst_buffer {
+	struct v4l2_m2m_buffer v4l2_m2m_buf;
+	bool                   display;
+};
+
+enum vpu_fmt_type {
+	VPU_FMT_TYPE_CODEC = 0,
+	VPU_FMT_TYPE_RAW   = 1
+};
+
+struct vpu_format {
+	unsigned int v4l2_pix_fmt;
+	unsigned int max_width;
+	unsigned int min_width;
+	unsigned int max_height;
+	unsigned int min_height;
+};
+
+static inline struct vpu_instance *wave5_to_vpu_inst(struct v4l2_fh *vfh)
+{
+	return container_of(vfh, struct vpu_instance, v4l2_fh);
+}
+
+static inline struct vpu_instance *wave5_ctrl_to_vpu_inst(struct v4l2_ctrl *vctrl)
+{
+	return container_of(vctrl->handler, struct vpu_instance, v4l2_ctrl_hdl);
+}
+
+static inline struct vpu_src_buffer *wave5_to_vpu_src_buf(struct vb2_v4l2_buffer *vbuf)
+{
+	return container_of(vbuf, struct vpu_src_buffer, v4l2_m2m_buf.vb);
+}
+
+static inline struct vpu_dst_buffer *wave5_to_vpu_dst_buf(struct vb2_v4l2_buffer *vbuf)
+{
+	return container_of(vbuf, struct vpu_dst_buffer, v4l2_m2m_buf.vb);
+}
+
+int wave5_vpu_wait_interrupt(struct vpu_instance *inst, unsigned int timeout);
+
+int  wave5_vpu_dec_register_device(struct vpu_device *dev);
+void wave5_vpu_dec_unregister_device(struct vpu_device *dev);
+int  wave5_vpu_enc_register_device(struct vpu_device *dev);
+void wave5_vpu_enc_unregister_device(struct vpu_device *dev);
+static inline bool wave5_vpu_both_queues_are_streaming(struct vpu_instance *inst)
+{
+	struct vb2_queue *vq_cap =
+		v4l2_m2m_get_vq(inst->v4l2_fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
+	struct vb2_queue *vq_out =
+		v4l2_m2m_get_vq(inst->v4l2_fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+
+	return vb2_is_streaming(vq_cap) && vb2_is_streaming(vq_out);
+}
+
+#endif