[PATCH V4,0/5] Support jpeg encoder for MT8195

[PATCH V4,0/5] Support jpeg encoder for MT8195

[kyrie.wu]

MT8195 has two jpeg encoding HW, each one has its own
power-domain, clock, interrupt, register base.
The two jpeg encoding HW can work together to
achieve higher performance.

Generally, one HW needs to register one device node,
and the APP operates the HW through the device node.
If there are multiple HWs, the multiple device node
needs to be registered. At this time, the app needs
to design software logic to use multiple HWs in parallel,
which will undoubtedly increase the difficulty of
app development and weaken its compatibility.

These serial patches use the component framework
to achieve the purpose of using multiple HWs
through only one device node. About the component
framework Block Diagram, please check below:

		Master(device node)
	________|_________________________
	|	               |             |
component0(HW0)	component1(HW1) component2(HW2) ......

As above, the component framework is similar to a
master-component two level architecture.
Both master and component have the compatible
attribute in the device tree, and the corresponding
platform driver structure is defined in the driver.
Therefore, when the compatible attribute matches,
the corresponding probe function will be called.

In the probe function of component, operations
such as initialization clock, remmap register base,
registration interrupt will be performed.
And add the component to a component linked
list to find the corresponding master.

In the probe function of the master, the device
node will be registered, and the master will be
added to a master linked list to find the
corresponding component.

After the master matches the component,
it will obtain the clock, interrupt, register base
and other resources in the component,
and operate the HW through these resources.
At the same time, multiple HWs software function
interfaces are designed in the master driver.

kyrie.wu (5):
  dt-bindings: mediatek: Add mediatek, mt8195-jpgenc compatible
  media: mtk-jpegenc: Use component framework to manage each hardware
  media: mtk-jpegenc: add jpegenc timeout func interface
  media: mtk-jpegenc: add jpeg encode worker interface
  media: mtk-jpegenc: add output pic reorder interface

 .../bindings/media/mediatek-jpeg-encoder.yaml      |   3 +
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c    | 395 ++++++++++++++++++---
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h    |  79 +++++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c  | 298 ++++++++++++++++
 4 files changed, 730 insertions(+), 45 deletions(-)

--
2.6.4


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[PATCH V4, 1/5] dt-bindings: mediatek: Add mediatek, mt8195-jpgenc compatible

[kyrie.wu]

Add mediatek, mt8195-jpgenc compatible to binding document

Signed-off-by: kyrie.wu <kyrie.wu@mediatek.com>
---
 Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml
index fcd9b82..e93ccf5 100644
--- a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml
@@ -18,6 +18,9 @@ properties:
       - enum:
           - mediatek,mt2701-jpgenc
           - mediatek,mt8183-jpgenc
+          - mediatek,mt8195-jpgenc
+          - mediatek,mt8195-jpgenc0
+          - mediatek,mt8195-jpgenc1
       - const: mediatek,mtk-jpgenc
   reg:
     maxItems: 1
-- 
2.6.4


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[PATCH V4, 2/5] media: mtk-jpegenc: Use component framework to manage each hardware

[kyrie.wu]

There are two jpeg encoding hardware inside MT8195, uses component
framework to manage each hardware so that the two hardwares can be
used through just one jpeg encoding device node.

In the component framework architecture, for one thing,the component,
represents the each hardware of jpeg encoding. For another, the master,
registering a device node, managed all components through the node.

Signed-off-by: kyrie.wu <kyrie.wu@mediatek.com>
---
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c   | 175 ++++++++++++---
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h   |  55 +++++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c | 258 ++++++++++++++++++++++
 3 files changed, 462 insertions(+), 26 deletions(-)

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index 88a23bc..c39be1e 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/clk.h>
+#include <linux/component.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -1266,6 +1267,87 @@ static int mtk_jpeg_release(struct file *file)
 	return 0;
 }
 
+static const struct of_device_id mtk_jpegenc_drv_ids[] = {
+	{
+		.compatible = "mediatek,mt8195-jpgenc0",
+		.data = (void *)MTK_JPEGENC_HW0,
+	},
+	{
+		.compatible = "mediatek,mt8195-jpgenc1",
+		.data = (void *)MTK_JPEGENC_HW1,
+	},
+	{},
+};
+
+static inline int mtk_vdec_compare_of(struct device *dev, void *data)
+{
+	return dev->of_node == data;
+}
+
+static inline void mtk_vdec_release_of(struct device *dev, void *data)
+{
+	of_node_put(data);
+}
+
+static inline int mtk_jpegenc_bind(struct device *dev)
+{
+	struct mtk_jpeg_dev *data = dev_get_drvdata(dev);
+
+	return component_bind_all(dev, data);
+}
+
+static inline void mtk_jpegenc_unbind(struct device *dev)
+{
+	struct mtk_jpeg_dev *data = dev_get_drvdata(dev);
+
+	component_unbind_all(dev, data);
+}
+
+static const struct component_master_ops mtk_jpegenc_ops = {
+	.bind = mtk_jpegenc_bind,
+	.unbind = mtk_jpegenc_unbind,
+};
+
+static struct component_match *mtk_jpegenc_match_add(struct mtk_jpeg_dev *jpeg)
+{
+	struct device *dev = jpeg->dev;
+	struct component_match *match = NULL;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(mtk_jpegenc_drv_ids); i++) {
+		struct device_node *comp_node;
+		enum mtk_jpegenc_hw_id comp_idx;
+		const struct of_device_id *of_id;
+
+		comp_node = of_find_compatible_node(NULL, NULL,
+			mtk_jpegenc_drv_ids[i].compatible);
+		if (!comp_node)
+			continue;
+
+		if (!of_device_is_available(comp_node)) {
+			of_node_put(comp_node);
+			v4l2_err(&jpeg->v4l2_dev, "Fail to get jpeg enc HW node\n");
+			continue;
+		}
+
+		of_id = of_match_node(mtk_jpegenc_drv_ids, comp_node);
+		if (!of_id) {
+			v4l2_err(&jpeg->v4l2_dev, "Failed to get match node\n");
+			return ERR_PTR(-EINVAL);
+		}
+
+		comp_idx = (enum mtk_jpegenc_hw_id)of_id->data;
+		v4l2_info(&jpeg->v4l2_dev,
+			"Get component:hw_id(%d),jpeg_dev(0x%p),comp_node(0x%p)\n",
+			comp_idx, jpeg, comp_node);
+		jpeg->component_node[comp_idx] = comp_node;
+		component_match_add_release(dev, &match, mtk_vdec_release_of,
+			mtk_vdec_compare_of, comp_node);
+	}
+
+	return match;
+}
+
 static const struct v4l2_file_operations mtk_jpeg_fops = {
 	.owner          = THIS_MODULE,
 	.open           = mtk_jpeg_open,
@@ -1344,6 +1426,7 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 	struct resource *res;
 	int jpeg_irq;
 	int ret;
+	struct component_match *match;
 
 	jpeg = devm_kzalloc(&pdev->dev, sizeof(*jpeg), GFP_KERNEL);
 	if (!jpeg)
@@ -1353,33 +1436,40 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 	spin_lock_init(&jpeg->hw_lock);
 	jpeg->dev = &pdev->dev;
 	jpeg->variant = of_device_get_match_data(jpeg->dev);
-	INIT_DELAYED_WORK(&jpeg->job_timeout_work, mtk_jpeg_job_timeout_work);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	jpeg->reg_base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(jpeg->reg_base)) {
-		ret = PTR_ERR(jpeg->reg_base);
-		return ret;
-	}
+	if (!jpeg->variant->is_encoder) {
+		INIT_DELAYED_WORK(&jpeg->job_timeout_work,
+			mtk_jpeg_job_timeout_work);
 
-	jpeg_irq = platform_get_irq(pdev, 0);
-	if (jpeg_irq < 0) {
-		dev_err(&pdev->dev, "Failed to get jpeg_irq %d.\n", jpeg_irq);
-		return jpeg_irq;
-	}
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+		jpeg->reg_base =
+			devm_platform_ioremap_resource_byname(pdev, pdev->name);
+		if (IS_ERR(jpeg->reg_base)) {
+			ret = PTR_ERR(jpeg->reg_base);
+			return ret;
+		}
 
-	ret = devm_request_irq(&pdev->dev, jpeg_irq,
-			       jpeg->variant->irq_handler, 0, pdev->name, jpeg);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed to request jpeg_irq %d (%d)\n",
-			jpeg_irq, ret);
-		goto err_req_irq;
-	}
+		jpeg_irq = platform_get_irq(pdev, 0);
+		if (jpeg_irq < 0) {
+			dev_err(&pdev->dev, "Failed to get jpeg_irq %d.\n",
+				jpeg_irq);
+			return jpeg_irq;
+		}
 
-	ret = mtk_jpeg_clk_init(jpeg);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed to init clk, err %d\n", ret);
-		goto err_clk_init;
+		ret = devm_request_irq(&pdev->dev, jpeg_irq,
+			jpeg->variant->irq_handler,
+			0, pdev->name, jpeg);
+		if (ret) {
+			dev_err(&pdev->dev, "Failed to request jpeg_irq %d (%d)\n",
+				jpeg_irq, ret);
+			goto err_req_irq;
+		}
+
+		ret = mtk_jpeg_clk_init(jpeg);
+		if (ret) {
+			dev_err(&pdev->dev, "Failed to init clk\n");
+			goto err_clk_init;
+		}
 	}
 
 	ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev);
@@ -1428,7 +1518,20 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, jpeg);
 
-	pm_runtime_enable(&pdev->dev);
+	if (jpeg->variant->is_encoder) {
+		match = mtk_jpegenc_match_add(jpeg);
+		if (IS_ERR_OR_NULL(match))
+			goto err_vfd_jpeg_register;
+
+		video_set_drvdata(jpeg->vdev, jpeg);
+		platform_set_drvdata(pdev, jpeg);
+		ret = component_master_add_with_match(&pdev->dev,
+			&mtk_jpegenc_ops, match);
+		if (ret < 0)
+			goto err_vfd_jpeg_register;
+	} else {
+		pm_runtime_enable(&pdev->dev);
+	}
 
 	return 0;
 
@@ -1525,6 +1628,7 @@ static const struct mtk_jpeg_variant mt8173_jpeg_drvdata = {
 };
 
 static const struct mtk_jpeg_variant mtk_jpeg_drvdata = {
+	.is_encoder	= true,
 	.clks = mtk_jpeg_clocks,
 	.num_clks = ARRAY_SIZE(mtk_jpeg_clocks),
 	.formats = mtk_jpeg_enc_formats,
@@ -1539,6 +1643,7 @@ static const struct mtk_jpeg_variant mtk_jpeg_drvdata = {
 	.cap_q_default_fourcc = V4L2_PIX_FMT_JPEG,
 };
 
+#if defined(CONFIG_OF)
 static const struct of_device_id mtk_jpeg_match[] = {
 	{
 		.compatible = "mediatek,mt8173-jpgdec",
@@ -1554,8 +1659,8 @@ static const struct of_device_id mtk_jpeg_match[] = {
 	},
 	{},
 };
-
 MODULE_DEVICE_TABLE(of, mtk_jpeg_match);
+#endif
 
 static struct platform_driver mtk_jpeg_driver = {
 	.probe = mtk_jpeg_probe,
@@ -1567,7 +1672,25 @@ static struct platform_driver mtk_jpeg_driver = {
 	},
 };
 
-module_platform_driver(mtk_jpeg_driver);
+static struct platform_driver * const mtk_jpeg_source_drivers[] = {
+	&mtk_jpegenc_hw_driver,
+	&mtk_jpeg_driver,
+};
+
+static int __init mtk_jpeg_init(void)
+{
+	return platform_register_drivers(mtk_jpeg_source_drivers,
+		ARRAY_SIZE(mtk_jpeg_source_drivers));
+}
+
+static void __exit mtk_jpeg_exit(void)
+{
+	platform_unregister_drivers(mtk_jpeg_source_drivers,
+		ARRAY_SIZE(mtk_jpeg_source_drivers));
+}
+
+module_init(mtk_jpeg_init);
+module_exit(mtk_jpeg_exit);
 
 MODULE_DESCRIPTION("MediaTek JPEG codec driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
index 595f7f1..9793ccb 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
@@ -60,6 +60,7 @@ enum mtk_jpeg_ctx_state {
  * @cap_q_default_fourcc:	capture queue default fourcc
  */
 struct mtk_jpeg_variant {
+	bool is_encoder;
 	struct clk_bulk_data *clks;
 	int num_clks;
 	struct mtk_jpeg_fmt *formats;
@@ -74,6 +75,53 @@ struct mtk_jpeg_variant {
 	u32 cap_q_default_fourcc;
 };
 
+enum mtk_jpegenc_hw_id {
+	MTK_JPEGENC_HW0,
+	MTK_JPEGENC_HW1,
+	MTK_JPEGENC_HW_MAX,
+};
+
+/**
+ * struct mtk_jpegenc_clk_info - Structure used to store clock name
+ */
+struct mtk_jpegenc_clk_info {
+	const char	*clk_name;
+	struct clk	*jpegenc_clk;
+};
+
+/* struct mtk_vcodec_clk - Structure used to store vcodec clock information */
+struct mtk_jpegenc_clk {
+	struct mtk_jpegenc_clk_info	*clk_info;
+	int	clk_num;
+};
+
+/**
+ * struct mtk_vcodec_pm - Power management data structure
+ */
+struct mtk_jpegenc_pm {
+	struct mtk_jpegenc_clk	venc_clk;
+	struct device	*dev;
+	struct mtk_jpegenc_comp_dev	*mtkdev;
+};
+
+/**
+ * struct mtk_jpegenc_comp_dev - JPEG COREX abstraction
+ * @dev:		        JPEG device
+ * @plat_dev:		    platform device data
+ * @reg_base:		    JPEG registers mapping
+ * @master_dev:		    mtk_jpeg_dev device
+ * @pm:	                mtk_jpegenc_pm
+ * @jpegenc_irq:	    jpeg encode irq num
+ */
+struct mtk_jpegenc_comp_dev {
+	struct device		*dev;
+	struct platform_device *plat_dev;
+	void __iomem		*reg_base;
+	struct mtk_jpeg_dev *master_dev;
+	struct mtk_jpegenc_pm pm;
+	int jpegenc_irq;
+};
+
 /**
  * struct mtk_jpeg_dev - JPEG IP abstraction
  * @lock:		the mutex protecting this structure
@@ -102,6 +150,11 @@ struct mtk_jpeg_dev {
 	struct device		*larb;
 	struct delayed_work job_timeout_work;
 	const struct mtk_jpeg_variant *variant;
+
+	void __iomem *reg_encbase[MTK_JPEGENC_HW_MAX];
+	struct mtk_jpegenc_comp_dev *hw_dev[MTK_JPEGENC_HW_MAX];
+	struct device_node *component_node[MTK_JPEGENC_HW_MAX];
+	int comp_idx;
 };
 
 /**
@@ -162,4 +215,6 @@ struct mtk_jpeg_ctx {
 	struct v4l2_ctrl_handler ctrl_hdl;
 };
 
+extern struct platform_driver mtk_jpegenc_hw_driver;
+
 #endif /* _MTK_JPEG_CORE_H */
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
index 1cf037b..cf8a706 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
@@ -5,11 +5,29 @@
  *
  */
 
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <media/media-device.h>
 #include <media/videobuf2-core.h>
 #include <media/videobuf2-dma-contig.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-event.h>
 
+
+#include "mtk_jpeg_core.h"
 #include "mtk_jpeg_enc_hw.h"
 
 static const struct mtk_jpeg_enc_qlt mtk_jpeg_enc_quality[] = {
@@ -152,3 +170,243 @@ void mtk_jpeg_set_enc_params(struct mtk_jpeg_ctx *ctx,  void __iomem *base)
 
 	writel(ctx->restart_interval, base + JPEG_ENC_RST_MCU_NUM);
 }
+
+static int mtk_jpegenc_hw_bind(struct device *dev,
+	struct device *master, void *data)
+{
+	struct mtk_jpegenc_comp_dev *comp_priv = dev_get_drvdata(dev);
+	struct mtk_jpeg_dev *master_priv = data;
+	int i;
+
+	for (i = 0; i < MTK_JPEGENC_HW_MAX; i++) {
+		if (dev->of_node != master_priv->component_node[i])
+			continue;
+
+		master_priv->hw_dev[i] = comp_priv;
+		master_priv->comp_idx = i;
+		master_priv->reg_encbase[i] =
+			comp_priv->reg_base;
+		comp_priv->master_dev = master_priv;
+		break;
+	}
+
+	if (i == MTK_JPEGENC_HW_MAX) {
+		dev_err(dev, "Failed to get component node\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void mtk_jpegenc_hw_unbind(struct device *dev,
+	struct device *master, void *data)
+{
+	struct mtk_jpegenc_comp_dev *comp_priv = dev_get_drvdata(dev);
+
+	comp_priv->reg_base = 0;
+
+}
+
+static const struct component_ops mtk_jpegenc_hw_component_ops = {
+	.bind = mtk_jpegenc_hw_bind,
+	.unbind = mtk_jpegenc_hw_unbind,
+};
+
+int mtk_jpegenc_init_pm(struct mtk_jpegenc_comp_dev *mtkdev)
+{
+	struct platform_device *pdev;
+	struct mtk_jpegenc_pm *pm;
+	struct mtk_jpegenc_clk *jpegenc_clk;
+	struct mtk_jpegenc_clk_info *clk_info;
+	int i, ret;
+
+	pdev = mtkdev->plat_dev;
+	pm = &mtkdev->pm;
+	pm->dev = &pdev->dev;
+	pm->mtkdev = mtkdev;
+	jpegenc_clk = &pm->venc_clk;
+
+	jpegenc_clk->clk_num =
+		of_property_count_strings(pdev->dev.of_node, "clock-names");
+	if (!jpegenc_clk->clk_num) {
+		dev_err(&pdev->dev, "Failed to get jpegenc clock count\n");
+		return -EINVAL;
+	}
+
+	jpegenc_clk->clk_info = devm_kcalloc(&pdev->dev,
+		jpegenc_clk->clk_num,
+		sizeof(*clk_info),
+		GFP_KERNEL);
+	if (!jpegenc_clk->clk_info)
+		return -ENOMEM;
+
+	for (i = 0; i < jpegenc_clk->clk_num; i++) {
+		clk_info = &jpegenc_clk->clk_info[i];
+		ret = of_property_read_string_index(pdev->dev.of_node,
+			"clock-names", i,
+			&clk_info->clk_name);
+		if (ret) {
+			dev_err(&pdev->dev, "Failed to get jpegenc clock name\n");
+			return ret;
+		}
+
+		clk_info->jpegenc_clk = devm_clk_get(&pdev->dev,
+			clk_info->clk_name);
+		if (IS_ERR(clk_info->jpegenc_clk)) {
+			dev_err(&pdev->dev, "devm_clk_get (%d)%s fail",
+				i, clk_info->clk_name);
+			return PTR_ERR(clk_info->jpegenc_clk);
+		}
+	}
+
+	pm_runtime_enable(&pdev->dev);
+
+	return ret;
+}
+
+void mtk_jpegenc_release_pm(struct mtk_jpegenc_comp_dev *mtkdev)
+{
+	struct platform_device *pdev = mtkdev->plat_dev;
+
+	pm_runtime_disable(&pdev->dev);
+}
+
+static irqreturn_t mtk_jpegenc_hw_irq_handler(int irq, void *priv)
+{
+	struct mtk_jpegenc_comp_dev *jpeg = priv;
+	struct mtk_jpeg_dev *master_jpeg = jpeg->master_dev;
+	u32 irq_status;
+	struct mtk_jpeg_ctx *ctx;
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+	enum vb2_buffer_state buf_state;
+	u32 result_size;
+
+	irq_status = readl(jpeg->reg_base + JPEG_ENC_INT_STS) &
+		     JPEG_ENC_INT_STATUS_MASK_ALLIRQ;
+	if (irq_status)
+		writel(0, jpeg->reg_base + JPEG_ENC_INT_STS);
+
+	if (!(irq_status & JPEG_ENC_INT_STATUS_DONE))
+		return IRQ_NONE;
+
+	ctx = v4l2_m2m_get_curr_priv(master_jpeg->m2m_dev);
+	if (!ctx) {
+		v4l2_err(&master_jpeg->v4l2_dev, "Context is NULL\n");
+		return IRQ_HANDLED;
+	}
+
+	src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+
+	result_size = mtk_jpeg_enc_get_file_size(jpeg->reg_base);
+	vb2_set_plane_payload(&dst_buf->vb2_buf, 0, result_size);
+
+	buf_state = VB2_BUF_STATE_DONE;
+
+	v4l2_m2m_buf_done(src_buf, buf_state);
+	v4l2_m2m_buf_done(dst_buf, buf_state);
+	v4l2_m2m_job_finish(master_jpeg->m2m_dev, ctx->fh.m2m_ctx);
+	pm_runtime_put(ctx->jpeg->dev);
+
+	return IRQ_HANDLED;
+}
+
+static int mtk_jpegenc_hw_init_irq(struct mtk_jpegenc_comp_dev *dev)
+{
+	struct platform_device *pdev = dev->plat_dev;
+	int ret;
+
+	dev->jpegenc_irq = platform_get_irq(pdev, 0);
+	if (dev->jpegenc_irq < 0) {
+		dev_err(&pdev->dev, "Failed to get irq resource");
+		return dev->jpegenc_irq;
+	}
+
+	ret = devm_request_irq(&pdev->dev, dev->jpegenc_irq,
+		mtk_jpegenc_hw_irq_handler, 0, pdev->name, dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to devm_request_irq %d (%d)",
+			dev->jpegenc_irq, ret);
+		return -ENOENT;
+	}
+
+	return 0;
+}
+
+static int mtk_jpegenc_hw_probe(struct platform_device *pdev)
+{
+	struct mtk_jpegenc_comp_dev *dev;
+	int ret;
+
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	dev->plat_dev = pdev;
+
+	ret = mtk_jpegenc_init_pm(dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to get jpeg enc clock source");
+		return ret;
+	}
+
+	dev->reg_base =
+		devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(dev->reg_base)) {
+		ret = PTR_ERR(dev->reg_base);
+		goto err;
+	}
+
+	ret = mtk_jpegenc_hw_init_irq(dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to register JPEGENC irq handler.\n");
+		goto err;
+	}
+
+	platform_set_drvdata(pdev, dev);
+
+	ret = component_add(&pdev->dev, &mtk_jpegenc_hw_component_ops);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to component_add: %d\n", ret);
+		goto err;
+	}
+
+	return 0;
+
+err:
+	mtk_jpegenc_release_pm(dev);
+
+	return ret;
+}
+
+static int mtk_jpegenc_remove(struct platform_device *pdev)
+{
+	struct mtk_jpegenc_comp_dev *dev = platform_get_drvdata(pdev);
+
+	mtk_jpegenc_release_pm(dev);
+
+	return 0;
+}
+
+#if defined(CONFIG_OF)
+static const struct of_device_id mtk_jpegenc_hw_ids[] = {
+	{
+		.compatible = "mediatek,mt8195-jpgenc0",
+	},
+	{
+		.compatible = "mediatek,mt8195-jpgenc1",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_jpegenc_hw_ids);
+#endif
+
+struct platform_driver mtk_jpegenc_hw_driver = {
+	.probe = mtk_jpegenc_hw_probe,
+	.remove = mtk_jpegenc_remove,
+	.driver = {
+		.name = "mtk-jpegenc-hw",
+		.of_match_table = of_match_ptr(mtk_jpegenc_hw_ids),
+	},
+};
+
-- 
2.6.4


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http://lists.infradead.org/mailman/listinfo/linux-mediatek

[PATCH V4, 3/5] media: mtk-jpegenc: add jpegenc timeout func interface

[kyrie.wu]

Generalizes jpegenc timeout func interfaces to handle HW timeout.

Signed-off-by: kyrie.wu <kyrie.wu@mediatek.com>
---
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h   |  8 ++++++++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c | 23 +++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
index 9793ccb..0689bcb 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
@@ -75,6 +75,12 @@ struct mtk_jpeg_variant {
 	u32 cap_q_default_fourcc;
 };
 
+struct mtk_jpeg_hw_param {
+	struct vb2_v4l2_buffer *src_buffer;
+	struct vb2_v4l2_buffer *dst_buffer;
+	struct mtk_jpeg_ctx *curr_ctx;
+};
+
 enum mtk_jpegenc_hw_id {
 	MTK_JPEGENC_HW0,
 	MTK_JPEGENC_HW1,
@@ -120,6 +126,8 @@ struct mtk_jpegenc_comp_dev {
 	struct mtk_jpeg_dev *master_dev;
 	struct mtk_jpegenc_pm pm;
 	int jpegenc_irq;
+	struct delayed_work job_timeout_work;
+	struct mtk_jpeg_hw_param hw_param;
 };
 
 /**
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
index cf8a706..c3feb3a0 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
@@ -271,6 +271,25 @@ void mtk_jpegenc_release_pm(struct mtk_jpegenc_comp_dev *mtkdev)
 	pm_runtime_disable(&pdev->dev);
 }
 
+static void mtk_jpegenc_timeout_work(struct work_struct *work)
+{
+	struct delayed_work *Pwork =
+		container_of(work, struct delayed_work, work);
+	struct mtk_jpegenc_comp_dev *cjpeg =
+		container_of(Pwork, struct mtk_jpegenc_comp_dev,
+		job_timeout_work);
+	struct vb2_v4l2_buffer *src_buf;
+	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+
+	src_buf = cjpeg->hw_param.src_buffer;
+
+	mtk_jpeg_enc_reset(cjpeg->reg_base);
+	clk_disable_unprepare(cjpeg->pm.venc_clk.clk_info->jpegenc_clk);
+	pm_runtime_put(cjpeg->pm.dev);
+
+	v4l2_m2m_buf_done(src_buf, buf_state);
+}
+
 static irqreturn_t mtk_jpegenc_hw_irq_handler(int irq, void *priv)
 {
 	struct mtk_jpegenc_comp_dev *jpeg = priv;
@@ -281,6 +300,8 @@ static irqreturn_t mtk_jpegenc_hw_irq_handler(int irq, void *priv)
 	enum vb2_buffer_state buf_state;
 	u32 result_size;
 
+	cancel_delayed_work(&jpeg->job_timeout_work);
+
 	irq_status = readl(jpeg->reg_base + JPEG_ENC_INT_STS) &
 		     JPEG_ENC_INT_STATUS_MASK_ALLIRQ;
 	if (irq_status)
@@ -344,6 +365,8 @@ static int mtk_jpegenc_hw_probe(struct platform_device *pdev)
 
 	dev->plat_dev = pdev;
 
+	INIT_DELAYED_WORK(&dev->job_timeout_work, mtk_jpegenc_timeout_work);
+
 	ret = mtk_jpegenc_init_pm(dev);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to get jpeg enc clock source");
-- 
2.6.4


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http://lists.infradead.org/mailman/listinfo/linux-mediatek

[PATCH V4,4/5] media: mtk-jpegenc: add jpeg encode worker interface

[kyrie.wu]

Add jpeg encoding worker to ensure that two HWs
run in parallel in MT8195.
1. In the traditional jpeg encode process of a single HW,
after putting buf to input queue, m2m_dev->curr_ctx
will be judged is null;
2. If m2m_dev->curr_ctx == null,
call the function of mtk_jpeg_enc_device_run for encoding;
Otherwise, it means that HW is currently
running and the program returns directly;
3. m2m_dev->curr_ctx is set to non-null
before calling mtk_jpeg_enc_device_run,
and is set to null after encoding is completed
in irq handler function;
4. m2m_dev->curr_ctx, defined in v4l2 architecture,
is a structure pointer variable,
not a pointer array, and cannot be valued multiple
times at the same time;
5. There are two encode HWs in mt8195.
Because the component framework is used to manage HWs,
only one v4l2 sub-device is registered,
so that there is only one m2m_dev->curr_ctx can be used,
but the two HWs need to run in parallel,
which is conflicts with the traditional jpeg encoding flow;
6. Add an encoding worker to solve this conflict.
The software operation process is as follows:
1) Only schedule worker operation is
performed in mtk_jpeg_enc_device_run,
and all encoding settings are changed to the worker function;
2) After the completion of encoding setting
and trigger HW in the worker function,
set m2m_dev->curr_ctx to null without waiting
for such operation in irq handler function;
3) If two HWs are busy at the same time,
and the program returns directly,
judge whether the input queue is empty
in the irq handler function.
If not, schedule worker ensures
that each input image will be encoded.

Signed-off-by: kyrie.wu <kyrie.wu@mediatek.com>
---
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c   | 176 +++++++++++++++++++---
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h   |  12 ++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c |  17 +++
 3 files changed, 186 insertions(+), 19 deletions(-)

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index c39be1e..c854cc4 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -111,6 +111,9 @@ struct mtk_jpeg_src_buf {
 	struct vb2_v4l2_buffer b;
 	struct list_head list;
 	struct mtk_jpeg_dec_param dec_param;
+
+	struct mtk_jpeg_ctx *curr_ctx;
+	u32 frame_num;
 };
 
 static int debug;
@@ -909,38 +912,145 @@ static int mtk_jpeg_set_dec_dst(struct mtk_jpeg_ctx *ctx,
 	return 0;
 }
 
-static void mtk_jpeg_enc_device_run(void *priv)
+static int mtk_jpeg_select_hw(struct mtk_jpeg_ctx *ctx)
 {
-	struct mtk_jpeg_ctx *ctx = priv;
+	struct mtk_jpegenc_comp_dev *comp_jpeg;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	unsigned long flags;
+	int hw_id = -1;
+	int i;
+
+	spin_lock_irqsave(&jpeg->hw_lock, flags);
+	for (i = 0; i < MTK_JPEGENC_HW_MAX; i++) {
+		comp_jpeg = jpeg->hw_dev[i];
+		if (comp_jpeg->hw_state == MTK_JPEG_HW_IDLE) {
+			hw_id = i;
+			comp_jpeg->hw_state = MTK_JPEG_HW_BUSY;
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&jpeg->hw_lock, flags);
+
+	return hw_id;
+}
+
+static int mtk_jpeg_deselect_hw(struct mtk_jpeg_dev *jpeg, int hw_id)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&jpeg->hw_lock, flags);
+	jpeg->hw_dev[hw_id]->hw_state = MTK_JPEG_HW_IDLE;
+	spin_unlock_irqrestore(&jpeg->hw_lock, flags);
+
+	return 0;
+}
+
+static int mtk_jpeg_set_hw_param(struct mtk_jpeg_ctx *ctx,
+	int hw_id,
+	struct vb2_v4l2_buffer *src_buf,
+	struct vb2_v4l2_buffer *dst_buf)
+{
+	struct mtk_jpegenc_comp_dev *jpeg = ctx->jpeg->hw_dev[hw_id];
+
+	jpeg->hw_param.curr_ctx = ctx;
+	jpeg->hw_param.src_buffer = src_buf;
+	jpeg->hw_param.dst_buffer = dst_buf;
+
+	return 0;
+}
+
+static void mtk_jpegenc_worker(struct work_struct *work)
+{
+	struct mtk_jpeg_ctx *ctx = container_of(work, struct mtk_jpeg_ctx,
+		jpeg_work);
 	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct mtk_jpegenc_comp_dev *comp_jpeg[MTK_JPEGENC_HW_MAX];
 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
 	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
 	unsigned long flags;
-	int ret;
+	struct mtk_jpeg_src_buf *jpeg_src_buf, *jpeg_dst_buf;
+	int ret, i, hw_id = 0;
+	atomic_t *hw_rdy[MTK_JPEGENC_HW_MAX];
+	struct clk *jpegenc_clk;
+
+	for (i = 0; i < MTK_JPEGENC_HW_MAX; i++) {
+		comp_jpeg[i] = jpeg->hw_dev[i];
+		hw_rdy[i] = &comp_jpeg[i]->hw_rdy;
+	}
+
+retry_select:
+	hw_id = mtk_jpeg_select_hw(ctx);
+	if (hw_id < 0) {
+		ret = wait_event_interruptible(jpeg->hw_wq,
+			(atomic_read(hw_rdy[0]) ||
+			atomic_read(hw_rdy[1])) > 0);
+		if (ret != 0) {
+			dev_err(jpeg->dev, "%s : %d, all HW are busy\n",
+				__func__, __LINE__);
+			v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+			return;
+		}
 
+		pr_info("%s : %d, NEW HW IDLE, please retry selcet!!!\n",
+			__func__, __LINE__);
+		goto retry_select;
+	}
+
+	atomic_dec(&comp_jpeg[hw_id]->hw_rdy);
 	src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+	if (!src_buf) {
+		pr_info("%s : %d, get src_buf fail !!!\n", __func__, __LINE__);
+		goto getbuf_fail;
+	}
+
 	dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+	if (!dst_buf) {
+		pr_info("%s : %d, get dst_buf fail !!!\n", __func__, __LINE__);
+		goto getbuf_fail;
+	}
 
-	ret = pm_runtime_get_sync(jpeg->dev);
-	if (ret < 0)
-		goto enc_end;
+	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf);
+	jpeg_dst_buf = mtk_jpeg_vb2_to_srcbuf(&dst_buf->vb2_buf);
+	jpeg_src_buf->curr_ctx = ctx;
+	jpeg_src_buf->frame_num = ctx->total_frame_num;
+	jpeg_dst_buf->curr_ctx = ctx;
+	jpeg_dst_buf->frame_num = ctx->total_frame_num;
+	ctx->total_frame_num++;
 
-	schedule_delayed_work(&jpeg->job_timeout_work,
-			      msecs_to_jiffies(MTK_JPEG_HW_TIMEOUT_MSEC));
+	v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+	mtk_jpeg_set_hw_param(ctx, hw_id, src_buf, dst_buf);
+	ret = pm_runtime_get_sync(comp_jpeg[hw_id]->pm.dev);
+	if (ret < 0) {
+		dev_err(jpeg->dev, "%s : %d, pm_runtime_get_sync fail !!!\n",
+			__func__, __LINE__);
+		goto enc_end;
+	}
 
-	spin_lock_irqsave(&jpeg->hw_lock, flags);
+	jpegenc_clk = comp_jpeg[hw_id]->pm.venc_clk.clk_info->jpegenc_clk;
+	ret = clk_prepare_enable(jpegenc_clk);
+	if (ret) {
+		dev_err(jpeg->dev, "%s : %d, jpegenc clk_prepare_enable fail\n",
+			__func__, __LINE__);
+		goto enc_end;
+	}
 
-	/*
-	 * Resetting the hardware every frame is to ensure that all the
-	 * registers are cleared. This is a hardware requirement.
-	 */
-	mtk_jpeg_enc_reset(jpeg->reg_base);
+	schedule_delayed_work(&comp_jpeg[hw_id]->job_timeout_work,
+		msecs_to_jiffies(MTK_JPEG_HW_TIMEOUT_MSEC));
+
+	spin_lock_irqsave(&comp_jpeg[hw_id]->hw_lock, flags);
+	mtk_jpeg_enc_reset(comp_jpeg[hw_id]->reg_base);
+	mtk_jpeg_set_enc_dst(ctx,
+		comp_jpeg[hw_id]->reg_base,
+		&dst_buf->vb2_buf);
+	mtk_jpeg_set_enc_src(ctx,
+		comp_jpeg[hw_id]->reg_base,
+		&src_buf->vb2_buf);
+	mtk_jpeg_set_enc_params(ctx, comp_jpeg[hw_id]->reg_base);
+	mtk_jpeg_enc_start(comp_jpeg[hw_id]->reg_base);
+	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+	spin_unlock_irqrestore(&comp_jpeg[hw_id]->hw_lock, flags);
 
-	mtk_jpeg_set_enc_src(ctx, jpeg->reg_base, &src_buf->vb2_buf);
-	mtk_jpeg_set_enc_dst(ctx, jpeg->reg_base, &dst_buf->vb2_buf);
-	mtk_jpeg_set_enc_params(ctx, jpeg->reg_base);
-	mtk_jpeg_enc_start(jpeg->reg_base);
-	spin_unlock_irqrestore(&jpeg->hw_lock, flags);
 	return;
 
 enc_end:
@@ -948,9 +1058,20 @@ static void mtk_jpeg_enc_device_run(void *priv)
 	v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
 	v4l2_m2m_buf_done(src_buf, buf_state);
 	v4l2_m2m_buf_done(dst_buf, buf_state);
+getbuf_fail:
+	atomic_inc(&comp_jpeg[hw_id]->hw_rdy);
+	mtk_jpeg_deselect_hw(jpeg, hw_id);
 	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
 }
 
+static void mtk_jpeg_enc_device_run(void *priv)
+{
+	struct mtk_jpeg_ctx *ctx = priv;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+
+	queue_work(jpeg->workqueue, &ctx->jpeg_work);
+}
+
 static void mtk_jpeg_dec_device_run(void *priv)
 {
 	struct mtk_jpeg_ctx *ctx = priv;
@@ -1218,6 +1339,9 @@ static int mtk_jpeg_open(struct file *file)
 		goto free;
 	}
 
+	if (jpeg->variant->is_encoder)
+		INIT_WORK(&ctx->jpeg_work, mtk_jpegenc_worker);
+
 	v4l2_fh_init(&ctx->fh, vfd);
 	file->private_data = &ctx->fh;
 	v4l2_fh_add(&ctx->fh);
@@ -1470,6 +1594,16 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev, "Failed to init clk\n");
 			goto err_clk_init;
 		}
+	} else {
+		init_waitqueue_head(&jpeg->hw_wq);
+
+		jpeg->workqueue = alloc_ordered_workqueue(MTK_JPEG_NAME,
+			WQ_MEM_RECLAIM | WQ_FREEZABLE);
+		if (!jpeg->workqueue) {
+			dev_err(&pdev->dev, "Failed to create jpeg workqueue!\n");
+			ret = -EINVAL;
+			goto err_alloc_workqueue;
+		}
 	}
 
 	ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev);
@@ -1549,6 +1683,8 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 
 err_clk_init:
 
+err_alloc_workqueue:
+
 err_req_irq:
 
 	return ret;
@@ -1564,6 +1700,8 @@ static int mtk_jpeg_remove(struct platform_device *pdev)
 	v4l2_m2m_release(jpeg->m2m_dev);
 	v4l2_device_unregister(&jpeg->v4l2_dev);
 	mtk_jpeg_clk_release(jpeg);
+	flush_workqueue(jpeg->workqueue);
+	destroy_workqueue(jpeg->workqueue);
 
 	return 0;
 }
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
index 0689bcb..a9000da 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
@@ -75,6 +75,11 @@ struct mtk_jpeg_variant {
 	u32 cap_q_default_fourcc;
 };
 
+enum mtk_jpeg_hw_state {
+	MTK_JPEG_HW_IDLE = 0,
+	MTK_JPEG_HW_BUSY = 1,
+};
+
 struct mtk_jpeg_hw_param {
 	struct vb2_v4l2_buffer *src_buffer;
 	struct vb2_v4l2_buffer *dst_buffer;
@@ -128,6 +133,9 @@ struct mtk_jpegenc_comp_dev {
 	int jpegenc_irq;
 	struct delayed_work job_timeout_work;
 	struct mtk_jpeg_hw_param hw_param;
+	atomic_t hw_rdy;
+	enum mtk_jpeg_hw_state hw_state;
+	spinlock_t		hw_lock;
 };
 
 /**
@@ -163,6 +171,7 @@ struct mtk_jpeg_dev {
 	struct mtk_jpegenc_comp_dev *hw_dev[MTK_JPEGENC_HW_MAX];
 	struct device_node *component_node[MTK_JPEGENC_HW_MAX];
 	int comp_idx;
+	wait_queue_head_t hw_wq;
 };
 
 /**
@@ -221,6 +230,9 @@ struct mtk_jpeg_ctx {
 	u8 enc_quality;
 	u8 restart_interval;
 	struct v4l2_ctrl_handler ctrl_hdl;
+
+	struct work_struct jpeg_work;
+	u32 total_frame_num;
 };
 
 extern struct platform_driver mtk_jpegenc_hw_driver;
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
index c3feb3a0..7b758fe 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
@@ -278,6 +278,7 @@ static void mtk_jpegenc_timeout_work(struct work_struct *work)
 	struct mtk_jpegenc_comp_dev *cjpeg =
 		container_of(Pwork, struct mtk_jpegenc_comp_dev,
 		job_timeout_work);
+	struct mtk_jpeg_dev *master_jpeg = cjpeg->master_dev;
 	struct vb2_v4l2_buffer *src_buf;
 	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
 
@@ -286,6 +287,9 @@ static void mtk_jpegenc_timeout_work(struct work_struct *work)
 	mtk_jpeg_enc_reset(cjpeg->reg_base);
 	clk_disable_unprepare(cjpeg->pm.venc_clk.clk_info->jpegenc_clk);
 	pm_runtime_put(cjpeg->pm.dev);
+	cjpeg->hw_state = MTK_JPEG_HW_IDLE;
+	atomic_inc(&cjpeg->hw_rdy);
+	wake_up(&master_jpeg->hw_wq);
 
 	v4l2_m2m_buf_done(src_buf, buf_state);
 }
@@ -327,7 +331,17 @@ static irqreturn_t mtk_jpegenc_hw_irq_handler(int irq, void *priv)
 	v4l2_m2m_buf_done(src_buf, buf_state);
 	v4l2_m2m_buf_done(dst_buf, buf_state);
 	v4l2_m2m_job_finish(master_jpeg->m2m_dev, ctx->fh.m2m_ctx);
+	clk_disable_unprepare(jpeg->pm.venc_clk.clk_info->jpegenc_clk);
 	pm_runtime_put(ctx->jpeg->dev);
+	if (ctx->fh.m2m_ctx &&
+		(!list_empty(&ctx->fh.m2m_ctx->out_q_ctx.rdy_queue) ||
+		!list_empty(&ctx->fh.m2m_ctx->cap_q_ctx.rdy_queue))) {
+		queue_work(master_jpeg->workqueue, &ctx->jpeg_work);
+	}
+
+	jpeg->hw_state = MTK_JPEG_HW_IDLE;
+	wake_up(&master_jpeg->hw_wq);
+	atomic_inc(&jpeg->hw_rdy);
 
 	return IRQ_HANDLED;
 }
@@ -364,6 +378,9 @@ static int mtk_jpegenc_hw_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	dev->plat_dev = pdev;
+	atomic_set(&dev->hw_rdy, 1U);
+	spin_lock_init(&dev->hw_lock);
+	dev->hw_state = MTK_JPEG_HW_IDLE;
 
 	INIT_DELAYED_WORK(&dev->job_timeout_work, mtk_jpegenc_timeout_work);
 
-- 
2.6.4


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[PATCH V4,5/5] media: mtk-jpegenc: add output pic reorder interface

[kyrie.wu]

There are two HWs in mt8195. Since the two HWs run
in parallel, it is necessary to reorder the output images
to ensure that the order is consistent with the input images.

Signed-off-by: kyrie.wu <kyrie.wu@mediatek.com>
---
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c   | 46 ++++++++++++++++++++++-
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h   |  4 ++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c |  4 +-
 3 files changed, 51 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index c854cc4..eeb2350 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -912,6 +912,48 @@ static int mtk_jpeg_set_dec_dst(struct mtk_jpeg_ctx *ctx,
 	return 0;
 }
 
+void mtk_jpeg_put_buf(struct mtk_jpegenc_comp_dev *jpeg)
+{
+	struct mtk_jpeg_ctx *ctx;
+	struct vb2_v4l2_buffer *dst_buffer;
+	struct list_head *temp_entry;
+	struct list_head *pos = NULL;
+	struct mtk_jpeg_src_buf *dst_done_buf, *tmp_dst_done_buf;
+	unsigned long flags;
+
+	ctx = jpeg->hw_param.curr_ctx;
+	if (!ctx) {
+		dev_err(jpeg->dev, "comp_jpeg ctx fail !!!\n");
+		return;
+	}
+	dst_buffer = jpeg->hw_param.dst_buffer;
+	if (!dst_buffer) {
+		dev_err(jpeg->dev, "comp_jpeg dst_buffer fail !!!\n");
+		return;
+	}
+
+	dst_done_buf = mtk_jpeg_vb2_to_srcbuf(&dst_buffer->vb2_buf);
+	spin_lock_irqsave(&ctx->done_queue_lock, flags);
+	list_add_tail(&dst_done_buf->list, &ctx->dst_done_queue);
+
+	while (!list_empty(&ctx->dst_done_queue) &&
+		(pos != &ctx->dst_done_queue)) {
+		list_for_each_prev_safe(pos, temp_entry,
+			(&ctx->dst_done_queue)) {
+			tmp_dst_done_buf = list_entry(pos,
+				struct mtk_jpeg_src_buf, list);
+			if (tmp_dst_done_buf->frame_num ==
+				ctx->last_done_frame_num) {
+				list_del(&tmp_dst_done_buf->list);
+				v4l2_m2m_buf_done(&tmp_dst_done_buf->b,
+					VB2_BUF_STATE_DONE);
+				ctx->last_done_frame_num++;
+			}
+		}
+	}
+	spin_unlock_irqrestore(&ctx->done_queue_lock, flags);
+}
+
 static int mtk_jpeg_select_hw(struct mtk_jpeg_ctx *ctx)
 {
 	struct mtk_jpegenc_comp_dev *comp_jpeg;
@@ -1339,8 +1381,10 @@ static int mtk_jpeg_open(struct file *file)
 		goto free;
 	}
 
-	if (jpeg->variant->is_encoder)
+	if (jpeg->variant->is_encoder) {
 		INIT_WORK(&ctx->jpeg_work, mtk_jpegenc_worker);
+		INIT_LIST_HEAD(&ctx->dst_done_queue);
+	}
 
 	v4l2_fh_init(&ctx->fh, vfd);
 	file->private_data = &ctx->fh;
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
index a9000da..a3046f8 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
@@ -233,8 +233,12 @@ struct mtk_jpeg_ctx {
 
 	struct work_struct jpeg_work;
 	u32 total_frame_num;
+	struct list_head dst_done_queue;
+	spinlock_t done_queue_lock;
+	u32 last_done_frame_num;
 };
 
 extern struct platform_driver mtk_jpegenc_hw_driver;
+void mtk_jpeg_put_buf(struct mtk_jpegenc_comp_dev *jpeg);
 
 #endif /* _MTK_JPEG_CORE_H */
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
index 7b758fe..6474aba 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
@@ -292,6 +292,7 @@ static void mtk_jpegenc_timeout_work(struct work_struct *work)
 	wake_up(&master_jpeg->hw_wq);
 
 	v4l2_m2m_buf_done(src_buf, buf_state);
+	mtk_jpeg_put_buf(cjpeg);
 }
 
 static irqreturn_t mtk_jpegenc_hw_irq_handler(int irq, void *priv)
@@ -329,8 +330,7 @@ static irqreturn_t mtk_jpegenc_hw_irq_handler(int irq, void *priv)
 	buf_state = VB2_BUF_STATE_DONE;
 
 	v4l2_m2m_buf_done(src_buf, buf_state);
-	v4l2_m2m_buf_done(dst_buf, buf_state);
-	v4l2_m2m_job_finish(master_jpeg->m2m_dev, ctx->fh.m2m_ctx);
+	mtk_jpeg_put_buf(jpeg);
 	clk_disable_unprepare(jpeg->pm.venc_clk.clk_info->jpegenc_clk);
 	pm_runtime_put(ctx->jpeg->dev);
 	if (ctx->fh.m2m_ctx &&
-- 
2.6.4


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Re: [PATCH V4,0/5] Support jpeg encoder for MT8195

[Chen-Yu Tsai]

On Fri, Sep 24, 2021 at 3:46 PM kyrie.wu <kyrie.wu@mediatek.com> wrote:
>
> MT8195 has two jpeg encoding HW, each one has its own
> power-domain, clock, interrupt, register base.
> The two jpeg encoding HW can work together to
> achieve higher performance.
>
> Generally, one HW needs to register one device node,
> and the APP operates the HW through the device node.
> If there are multiple HWs, the multiple device node
> needs to be registered. At this time, the app needs
> to design software logic to use multiple HWs in parallel,
> which will undoubtedly increase the difficulty of
> app development and weaken its compatibility.
>
> These serial patches use the component framework
> to achieve the purpose of using multiple HWs
> through only one device node. About the component
> framework Block Diagram, please check below:
>
>                 Master(device node)
>         ________|_________________________
>         |                      |             |
> component0(HW0) component1(HW1) component2(HW2) ......
>
> As above, the component framework is similar to a
> master-component two level architecture.
> Both master and component have the compatible
> attribute in the device tree, and the corresponding
> platform driver structure is defined in the driver.
> Therefore, when the compatible attribute matches,
> the corresponding probe function will be called.
>
> In the probe function of component, operations
> such as initialization clock, remmap register base,
> registration interrupt will be performed.
> And add the component to a component linked
> list to find the corresponding master.
>
> In the probe function of the master, the device
> node will be registered, and the master will be
> added to a master linked list to find the
> corresponding component.
>
> After the master matches the component,
> it will obtain the clock, interrupt, register base
> and other resources in the component,
> and operate the HW through these resources.
> At the same time, multiple HWs software function
> interfaces are designed in the master driver.


Please include a changelog with your cover letter (or in each patch).
This is the fourth version of the series, and it's unclear what has
changed between the versions.


ChenYu

> kyrie.wu (5):
>   dt-bindings: mediatek: Add mediatek, mt8195-jpgenc compatible
>   media: mtk-jpegenc: Use component framework to manage each hardware
>   media: mtk-jpegenc: add jpegenc timeout func interface
>   media: mtk-jpegenc: add jpeg encode worker interface
>   media: mtk-jpegenc: add output pic reorder interface
>
>  .../bindings/media/mediatek-jpeg-encoder.yaml      |   3 +
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c    | 395 ++++++++++++++++++---
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h    |  79 +++++
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c  | 298 ++++++++++++++++
>  4 files changed, 730 insertions(+), 45 deletions(-)
>
> --
> 2.6.4
>
>
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@lists.infradead.org
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