1 files changed, 0 insertions, 391 deletions

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
deleted file mode 100644
index f87dc47d9e63..000000000000
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ /dev/null
@@ -1,391 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (c) 2016 MediaTek Inc.
- * Author: PC Chen <pc.chen@mediatek.com>
- *         Tiffany Lin <tiffany.lin@mediatek.com>
- */
-
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/of.h>
-#include <media/v4l2-event.h>
-#include <media/v4l2-mem2mem.h>
-#include <media/videobuf2-dma-contig.h>
-
-#include "mtk_vcodec_drv.h"
-#include "mtk_vcodec_dec.h"
-#include "mtk_vcodec_dec_pm.h"
-#include "mtk_vcodec_intr.h"
-#include "mtk_vcodec_util.h"
-#include "mtk_vcodec_fw.h"
-
-#define VDEC_HW_ACTIVE	0x10
-#define VDEC_IRQ_CFG	0x11
-#define VDEC_IRQ_CLR	0x10
-#define VDEC_IRQ_CFG_REG	0xa4
-
-module_param(mtk_v4l2_dbg_level, int, 0644);
-module_param(mtk_vcodec_dbg, bool, 0644);
-
-/* Wake up context wait_queue */
-static void wake_up_ctx(struct mtk_vcodec_ctx *ctx)
-{
-	ctx->int_cond = 1;
-	wake_up_interruptible(&ctx->queue);
-}
-
-static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
-{
-	struct mtk_vcodec_dev *dev = priv;
-	struct mtk_vcodec_ctx *ctx;
-	u32 cg_status = 0;
-	unsigned int dec_done_status = 0;
-	void __iomem *vdec_misc_addr = dev->reg_base[VDEC_MISC] +
-					VDEC_IRQ_CFG_REG;
-
-	ctx = mtk_vcodec_get_curr_ctx(dev);
-
-	/* check if HW active or not */
-	cg_status = readl(dev->reg_base[0]);
-	if ((cg_status & VDEC_HW_ACTIVE) != 0) {
-		mtk_v4l2_err("DEC ISR, VDEC active is not 0x0 (0x%08x)",
-			     cg_status);
-		return IRQ_HANDLED;
-	}
-
-	dec_done_status = readl(vdec_misc_addr);
-	ctx->irq_status = dec_done_status;
-	if ((dec_done_status & MTK_VDEC_IRQ_STATUS_DEC_SUCCESS) !=
-		MTK_VDEC_IRQ_STATUS_DEC_SUCCESS)
-		return IRQ_HANDLED;
-
-	/* clear interrupt */
-	writel((readl(vdec_misc_addr) | VDEC_IRQ_CFG),
-		dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG);
-	writel((readl(vdec_misc_addr) & ~VDEC_IRQ_CLR),
-		dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG);
-
-	wake_up_ctx(ctx);
-
-	mtk_v4l2_debug(3,
-			"mtk_vcodec_dec_irq_handler :wake up ctx %d, dec_done_status=%x",
-			ctx->id, dec_done_status);
-
-	return IRQ_HANDLED;
-}
-
-static int fops_vcodec_open(struct file *file)
-{
-	struct mtk_vcodec_dev *dev = video_drvdata(file);
-	struct mtk_vcodec_ctx *ctx = NULL;
-	struct mtk_video_dec_buf *mtk_buf = NULL;
-	int ret = 0;
-	struct vb2_queue *src_vq;
-
-	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
-	mtk_buf = kzalloc(sizeof(*mtk_buf), GFP_KERNEL);
-	if (!mtk_buf) {
-		kfree(ctx);
-		return -ENOMEM;
-	}
-
-	mutex_lock(&dev->dev_mutex);
-	ctx->empty_flush_buf = mtk_buf;
-	ctx->id = dev->id_counter++;
-	v4l2_fh_init(&ctx->fh, video_devdata(file));
-	file->private_data = &ctx->fh;
-	v4l2_fh_add(&ctx->fh);
-	INIT_LIST_HEAD(&ctx->list);
-	ctx->dev = dev;
-	init_waitqueue_head(&ctx->queue);
-	mutex_init(&ctx->lock);
-
-	ctx->type = MTK_INST_DECODER;
-	ret = mtk_vcodec_dec_ctrls_setup(ctx);
-	if (ret) {
-		mtk_v4l2_err("Failed to setup mt vcodec controls");
-		goto err_ctrls_setup;
-	}
-	ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev_dec, ctx,
-		&mtk_vcodec_dec_queue_init);
-	if (IS_ERR((__force void *)ctx->m2m_ctx)) {
-		ret = PTR_ERR((__force void *)ctx->m2m_ctx);
-		mtk_v4l2_err("Failed to v4l2_m2m_ctx_init() (%d)",
-			ret);
-		goto err_m2m_ctx_init;
-	}
-	src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx,
-				V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
-	ctx->empty_flush_buf->m2m_buf.vb.vb2_buf.vb2_queue = src_vq;
-	ctx->empty_flush_buf->lastframe = true;
-	mtk_vcodec_dec_set_default_params(ctx);
-
-	if (v4l2_fh_is_singular(&ctx->fh)) {
-		ret = mtk_vcodec_dec_pw_on(&dev->pm);
-		if (ret < 0)
-			goto err_load_fw;
-		/*
-		 * Does nothing if firmware was already loaded.
-		 */
-		ret = mtk_vcodec_fw_load_firmware(dev->fw_handler);
-		if (ret < 0) {
-			/*
-			 * Return 0 if downloading firmware successfully,
-			 * otherwise it is failed
-			 */
-			mtk_v4l2_err("failed to load firmware!");
-			goto err_load_fw;
-		}
-
-		dev->dec_capability =
-			mtk_vcodec_fw_get_vdec_capa(dev->fw_handler);
-		mtk_v4l2_debug(0, "decoder capability %x", dev->dec_capability);
-	}
-
-	list_add(&ctx->list, &dev->ctx_list);
-
-	mutex_unlock(&dev->dev_mutex);
-	mtk_v4l2_debug(0, "%s decoder [%d]", dev_name(&dev->plat_dev->dev),
-			ctx->id);
-	return ret;
-
-	/* Deinit when failure occurred */
-err_load_fw:
-	v4l2_m2m_ctx_release(ctx->m2m_ctx);
-err_m2m_ctx_init:
-	v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
-err_ctrls_setup:
-	v4l2_fh_del(&ctx->fh);
-	v4l2_fh_exit(&ctx->fh);
-	kfree(ctx->empty_flush_buf);
-	kfree(ctx);
-	mutex_unlock(&dev->dev_mutex);
-
-	return ret;
-}
-
-static int fops_vcodec_release(struct file *file)
-{
-	struct mtk_vcodec_dev *dev = video_drvdata(file);
-	struct mtk_vcodec_ctx *ctx = fh_to_ctx(file->private_data);
-
-	mtk_v4l2_debug(0, "[%d] decoder", ctx->id);
-	mutex_lock(&dev->dev_mutex);
-
-	/*
-	 * Call v4l2_m2m_ctx_release before mtk_vcodec_dec_release. First, it
-	 * makes sure the worker thread is not running after vdec_if_deinit.
-	 * Second, the decoder will be flushed and all the buffers will be
-	 * returned in stop_streaming.
-	 */
-	v4l2_m2m_ctx_release(ctx->m2m_ctx);
-	mtk_vcodec_dec_release(ctx);
-
-	if (v4l2_fh_is_singular(&ctx->fh))
-		mtk_vcodec_dec_pw_off(&dev->pm);
-	v4l2_fh_del(&ctx->fh);
-	v4l2_fh_exit(&ctx->fh);
-	v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
-
-	list_del_init(&ctx->list);
-	kfree(ctx->empty_flush_buf);
-	kfree(ctx);
-	mutex_unlock(&dev->dev_mutex);
-	return 0;
-}
-
-static const struct v4l2_file_operations mtk_vcodec_fops = {
-	.owner		= THIS_MODULE,
-	.open		= fops_vcodec_open,
-	.release	= fops_vcodec_release,
-	.poll		= v4l2_m2m_fop_poll,
-	.unlocked_ioctl	= video_ioctl2,
-	.mmap		= v4l2_m2m_fop_mmap,
-};
-
-static int mtk_vcodec_probe(struct platform_device *pdev)
-{
-	struct mtk_vcodec_dev *dev;
-	struct video_device *vfd_dec;
-	struct resource *res;
-	phandle rproc_phandle;
-	enum mtk_vcodec_fw_type fw_type;
-	int i, ret;
-
-	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
-	if (!dev)
-		return -ENOMEM;
-
-	INIT_LIST_HEAD(&dev->ctx_list);
-	dev->plat_dev = pdev;
-
-	if (!of_property_read_u32(pdev->dev.of_node, "mediatek,vpu",
-				  &rproc_phandle)) {
-		fw_type = VPU;
-	} else if (!of_property_read_u32(pdev->dev.of_node, "mediatek,scp",
-					 &rproc_phandle)) {
-		fw_type = SCP;
-	} else {
-		mtk_v4l2_err("Could not get vdec IPI device");
-		return -ENODEV;
-	}
-	dma_set_max_seg_size(&pdev->dev, UINT_MAX);
-
-	dev->fw_handler = mtk_vcodec_fw_select(dev, fw_type, DECODER);
-	if (IS_ERR(dev->fw_handler))
-		return PTR_ERR(dev->fw_handler);
-
-	ret = mtk_vcodec_init_dec_pm(dev);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Failed to get mt vcodec clock source");
-		goto err_dec_pm;
-	}
-
-	for (i = 0; i < NUM_MAX_VDEC_REG_BASE; i++) {
-		dev->reg_base[i] = devm_platform_ioremap_resource(pdev, i);
-		if (IS_ERR((__force void *)dev->reg_base[i])) {
-			ret = PTR_ERR((__force void *)dev->reg_base[i]);
-			goto err_res;
-		}
-		mtk_v4l2_debug(2, "reg[%d] base=%p", i, dev->reg_base[i]);
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (res == NULL) {
-		dev_err(&pdev->dev, "failed to get irq resource");
-		ret = -ENOENT;
-		goto err_res;
-	}
-
-	dev->dec_irq = platform_get_irq(pdev, 0);
-	irq_set_status_flags(dev->dec_irq, IRQ_NOAUTOEN);
-	ret = devm_request_irq(&pdev->dev, dev->dec_irq,
-			mtk_vcodec_dec_irq_handler, 0, pdev->name, dev);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed to install dev->dec_irq %d (%d)",
-			dev->dec_irq,
-			ret);
-		goto err_res;
-	}
-
-	mutex_init(&dev->dec_mutex);
-	mutex_init(&dev->dev_mutex);
-	spin_lock_init(&dev->irqlock);
-
-	snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), "%s",
-		"[/MTK_V4L2_VDEC]");
-
-	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
-	if (ret) {
-		mtk_v4l2_err("v4l2_device_register err=%d", ret);
-		goto err_res;
-	}
-
-	init_waitqueue_head(&dev->queue);
-
-	vfd_dec = video_device_alloc();
-	if (!vfd_dec) {
-		mtk_v4l2_err("Failed to allocate video device");
-		ret = -ENOMEM;
-		goto err_dec_alloc;
-	}
-	vfd_dec->fops		= &mtk_vcodec_fops;
-	vfd_dec->ioctl_ops	= &mtk_vdec_ioctl_ops;
-	vfd_dec->release	= video_device_release;
-	vfd_dec->lock		= &dev->dev_mutex;
-	vfd_dec->v4l2_dev	= &dev->v4l2_dev;
-	vfd_dec->vfl_dir	= VFL_DIR_M2M;
-	vfd_dec->device_caps	= V4L2_CAP_VIDEO_M2M_MPLANE |
-			V4L2_CAP_STREAMING;
-
-	snprintf(vfd_dec->name, sizeof(vfd_dec->name), "%s",
-		MTK_VCODEC_DEC_NAME);
-	video_set_drvdata(vfd_dec, dev);
-	dev->vfd_dec = vfd_dec;
-	platform_set_drvdata(pdev, dev);
-
-	dev->m2m_dev_dec = v4l2_m2m_init(&mtk_vdec_m2m_ops);
-	if (IS_ERR((__force void *)dev->m2m_dev_dec)) {
-		mtk_v4l2_err("Failed to init mem2mem dec device");
-		ret = PTR_ERR((__force void *)dev->m2m_dev_dec);
-		goto err_dec_mem_init;
-	}
-
-	dev->decode_workqueue =
-		alloc_ordered_workqueue(MTK_VCODEC_DEC_NAME,
-			WQ_MEM_RECLAIM | WQ_FREEZABLE);
-	if (!dev->decode_workqueue) {
-		mtk_v4l2_err("Failed to create decode workqueue");
-		ret = -EINVAL;
-		goto err_event_workq;
-	}
-
-	ret = video_register_device(vfd_dec, VFL_TYPE_VIDEO, 0);
-	if (ret) {
-		mtk_v4l2_err("Failed to register video device");
-		goto err_dec_reg;
-	}
-
-	mtk_v4l2_debug(0, "decoder registered as /dev/video%d",
-		vfd_dec->num);
-
-	return 0;
-
-err_dec_reg:
-	destroy_workqueue(dev->decode_workqueue);
-err_event_workq:
-	v4l2_m2m_release(dev->m2m_dev_dec);
-err_dec_mem_init:
-	video_unregister_device(vfd_dec);
-err_dec_alloc:
-	v4l2_device_unregister(&dev->v4l2_dev);
-err_res:
-	mtk_vcodec_release_dec_pm(dev);
-err_dec_pm:
-	mtk_vcodec_fw_release(dev->fw_handler);
-	return ret;
-}
-
-static const struct of_device_id mtk_vcodec_match[] = {
-	{.compatible = "mediatek,mt8173-vcodec-dec",},
-	{},
-};
-
-MODULE_DEVICE_TABLE(of, mtk_vcodec_match);
-
-static int mtk_vcodec_dec_remove(struct platform_device *pdev)
-{
-	struct mtk_vcodec_dev *dev = platform_get_drvdata(pdev);
-
-	flush_workqueue(dev->decode_workqueue);
-	destroy_workqueue(dev->decode_workqueue);
-	if (dev->m2m_dev_dec)
-		v4l2_m2m_release(dev->m2m_dev_dec);
-
-	if (dev->vfd_dec)
-		video_unregister_device(dev->vfd_dec);
-
-	v4l2_device_unregister(&dev->v4l2_dev);
-	mtk_vcodec_release_dec_pm(dev);
-	mtk_vcodec_fw_release(dev->fw_handler);
-	return 0;
-}
-
-static struct platform_driver mtk_vcodec_dec_driver = {
-	.probe	= mtk_vcodec_probe,
-	.remove	= mtk_vcodec_dec_remove,
-	.driver	= {
-		.name	= MTK_VCODEC_DEC_NAME,
-		.of_match_table = mtk_vcodec_match,
-	},
-};
-
-module_platform_driver(mtk_vcodec_dec_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("Mediatek video codec V4L2 decoder driver");