This patch adds the driver of Face Detection (FD) unit in
Mediatek camera system, providing face detection function.
The mtk-isp directory will contain drivers for multiple IP
blocks found in Mediatek ISP system. It will include ISP Pass 1
driver (CAM), sensor interface driver, DIP driver and face
detection driver.
Signed-off-by: Jerry-ch Chen <jerry-ch.chen@xxxxxxxxxxxx>
---
drivers/media/platform/mtk-isp/Makefile | 16 +
drivers/media/platform/mtk-isp/fd/Makefile | 38 +
drivers/media/platform/mtk-isp/fd/mtk_fd-core.h | 157 +++
drivers/media/platform/mtk-isp/fd/mtk_fd-ctx.h | 299 ++++++
.../platform/mtk-isp/fd/mtk_fd-dev-ctx-core.c | 912 +++++++++++++++++
drivers/media/platform/mtk-isp/fd/mtk_fd-dev.c | 355 +++++++
drivers/media/platform/mtk-isp/fd/mtk_fd-dev.h | 198 ++++
.../media/platform/mtk-isp/fd/mtk_fd-smem-drv.c | 452 +++++++++
drivers/media/platform/mtk-isp/fd/mtk_fd-smem.h | 25 +
.../media/platform/mtk-isp/fd/mtk_fd-v4l2-util.c | 1046 ++++++++++++++++++++
drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2.c | 114 +++
drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2.h | 36 +
drivers/media/platform/mtk-isp/fd/mtk_fd.c | 730 ++++++++++++++
drivers/media/platform/mtk-isp/fd/mtk_fd.h | 127 +++
14 files changed, 4505 insertions(+)
create mode 100644 drivers/media/platform/mtk-isp/Makefile
create mode 100644 drivers/media/platform/mtk-isp/fd/Makefile
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd-core.h
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd-ctx.h
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd-dev-ctx-core.c
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd-dev.c
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd-dev.h
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd-smem-drv.c
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd-smem.h
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2-util.c
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2.c
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2.h
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd.c
create mode 100644 drivers/media/platform/mtk-isp/fd/mtk_fd.h
diff --git a/drivers/media/platform/mtk-isp/Makefile b/drivers/media/platform/mtk-isp/Makefile
new file mode 100644
index 0000000..5e3a9aa
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/Makefile
@@ -0,0 +1,16 @@
+#
+# Copyright (C) 2018 MediaTek Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+
+ifeq ($(CONFIG_VIDEO_MEDIATEK_FD_SUPPORT),y)
+obj-y += fd/
+endif
diff --git a/drivers/media/platform/mtk-isp/fd/Makefile b/drivers/media/platform/mtk-isp/fd/Makefile
new file mode 100644
index 0000000..ac168c1
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/Makefile
@@ -0,0 +1,38 @@
+#
+# Copyright (C) 2018 MediaTek Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+
+$(info "FD: makefile start srctree: $(srctree)")
+ccflags-y += -I$(srctree)/drivers/media/platform/mtk-vpu
+ccflags-y += -I$(srctree)/drivers/media/platform/mtk-isp/fd
+#ccflags-y += -I$(srctree)/drivers/media/platform/mtk-isp/common
+
+obj-y += mtk_fd.o
+obj-y += mtk_fd-v4l2.o
+
+# To provide alloc context managing memory shared
+# between CPU and FD coprocessor
+mtk_fd_smem-objs := \
+mtk_fd-smem-drv.o
+
+obj-y += mtk_fd_smem.o
+
+# Utilits to provide frame-based streaming model
+# with v4l2 user interfaces
+mtk_fd_util-objs := \
+mtk_fd-dev.o \
+mtk_fd-v4l2-util.o \
+mtk_fd-dev-ctx-core.o
+
+obj-y += mtk_fd_util.o
+
+$(info "FD: makefile end")
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd-core.h b/drivers/media/platform/mtk-isp/fd/mtk_fd-core.h
new file mode 100644
index 0000000..a7c1e1d
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd-core.h
@@ -0,0 +1,157 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Copyright (C) 2015 MediaTek Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MTK_FD_CORE_H__
+#define __MTK_FD_CORE_H__
+
+#define SIG_ERESTARTSYS 512
+
+#ifndef CONFIG_MTK_CLKMGR
+#include <linux/clk.h>
+#endif
+
+#ifdef CONFIG_MTK_CLKMGR
+#include <mach/mt_clkmgr.h>
+#endif
+
+#include "mtk_fd-dev.h"
+#include "mtk_fd-ctx.h"
+
+#include <linux/io.h>
+
+#define FD_WR32(v, a) \
+do { \
+ __raw_writel((v), (void __force __iomem *)((a))); \
+ mb(); /* ensure written */ \
+} while (0)
+
+#define FD_RD32(addr) ioread32((void *)addr)
+
+#define FD_INT_EN (0x15c)
+#define FD_INT (0x168)
+#define FD_RESULT (0x178)
+#define FD_IRQ_MASK (0x001)
+
+#define RS_BUF_SIZE_MAX (2288788)
+#define VA_OFFSET (0xffff000000000000)
+
+enum fd_irq {
+ FD_IRQ_IDX = 0,
+ FD_IRQ_IDX_NUM
+};
+
+enum fd_state {
+ FD_INI,
+ FD_ENQ,
+ FD_CBD,
+};
+
+enum stream_stat {
+ STREAM_OFF,
+ STREAM_ON,
+};
+
+struct ipi_fd_enq_param {
+ u8 source_img_fmt;
+ struct fd_buffer output_addr;
+ struct fd_buffer src_y;
+ struct fd_buffer src_uv;
+ struct fd_buffer config_addr;
+} __packed;
+
+struct fd_manager_ctx {
+ struct fd_buffer learn_data_buf[2][LEARNDATA_NUM];
+ struct fd_buffer fd_config;
+ struct fd_buffer rs_config;
+ struct fd_buffer fd_result;
+ struct fd_buffer rs_result;
+ struct fd_buffer src_img;
+} __packed;
+
+struct mtk_fd_drv_ctx {
+ struct sg_table sgtable;
+ u32 frame_id;
+ struct fd_buffer rs_result;
+ struct fd_buffer scp_mem;
+ struct platform_device *vpu_pdev;
+
+ atomic_t fd_enque_cnt;
+ atomic_t fd_stream_cnt;
+ atomic_t fd_user_cnt;
+};
+
+struct mtk_fd_drv_dev {
+ struct platform_device *pdev;
+
+ dev_t fd_devno;
+ struct cdev fd_cdev;
+ struct class *fd_class;
+ struct mtk_fd_drv_ctx fd_ctx;
+
+ struct device *larb_dev;
+ struct clk *fd_clk;
+ enum fd_state state;
+ enum stream_stat streaming;
+
+ wait_queue_head_t wq;
+ u32 fd_irq_result;
+
+ void __iomem *fd_base;
+};
+
+struct mtk_isp_fd_drv_data {
+ struct mtk_fd_dev fd_dev;
+ struct mtk_fd_drv_dev fd_hw_dev;
+} __packed;
+
+static inline struct mtk_fd_drv_dev *get_fd_hw_device(struct device *dev)
+{
+ struct mtk_isp_fd_drv_data *drv_data =
+ dev_get_drvdata(dev);
+ if (drv_data)
+ return &drv_data->fd_hw_dev;
+ else
+ return NULL;
+}
+
+#define mtk_fd_us_to_jiffies(us) \
+ ((((unsigned long)(us) / 1000) * HZ + 512) >> 10)
+
+#define mtk_fd_hw_dev_to_drv(__fd_hw_dev) \
+ container_of(__fd_hw_dev, \
+ struct mtk_isp_fd_drv_data, fd_hw_dev)
+
+#define mtk_fd_ctx_to_drv(__fd_ctx) \
+ container_of(__fd_ctx, \
+ struct mtk_isp_fd_drv_data, fd_hw_dev.fd_ctx)
+
+enum fd_scp_cmd {
+ FD_CMD_INIT,
+ FD_CMD_ENQ,
+ FD_CMD_EXIT,
+};
+
+enum fd_clk {
+ clock_off = 0,
+ clock_on,
+};
+
+struct ipi_message {
+ u8 cmd_id;
+ union {
+ struct fd_buffer fd_manager;
+ struct v4l2_fd_param fd_param;
+ };
+} __packed;
+
+#endif/*__MTK_FD_CORE_H__*/
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd-ctx.h b/drivers/media/platform/mtk-isp/fd/mtk_fd-ctx.h
new file mode 100644
index 0000000..d78a3af
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd-ctx.h
@@ -0,0 +1,299 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Frederic Chen <frederic.chen@xxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MTK_FD_CTX_H__
+#define __MTK_FD_CTX_H__
+
+#include <linux/types.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-ctrls.h>
+#include <media/videobuf2-core.h>
+#include <media/v4l2-subdev.h>
+
+#define MTK_FD_CTX_QUEUES (16)
+#define MTK_FD_CTX_FRAME_BUNDLE_BUFFER_MAX (MTK_FD_CTX_QUEUES)
+#define MTK_FD_CTX_DESC_MAX (MTK_FD_CTX_QUEUES)
+
+#define MTK_FD_CTX_MODE_DEBUG_OFF (0)
+#define MTK_FD_CTX_MODE_DEBUG_BYPASS_JOB_TRIGGER (1)
+#define MTK_FD_CTX_MODE_DEBUG_BYPASS_ALL (2)
+
+#define MTK_FD_GET_CTX_ID_FROM_SEQUENCE(sequence) \
+ ((sequence) >> 16 & 0x0000FFFF)
+
+#define MTK_FD_CTX_META_BUF_DEFAULT_SIZE (1110 * 1024)
+
+struct mtk_fd_ctx;
+struct mtk_fd_ctx_finish_param;
+
+/**
+ * Attributes setup by device context owner
+ */
+struct mtk_fd_ctx_queue_desc {
+ int id;
+ /* id of the context queue */
+ char *name;
+ /* Will be exported to media entity name */
+ int capture;
+ /**
+ * 1 for capture queue (device to user),
+ * 0 for output queue (from user to device)
+ */
+ int image;
+ /* 1 for image, 0 for meta data */
+ unsigned int dma_port;
+ /*The dma port associated to the buffer*/
+ struct mtk_fd_ctx_format *fmts;
+ int num_fmts;
+ /* Default format of this queue */
+ int default_fmt_idx;
+};
+
+/**
+ * Supported format and the information used for
+ * size calculation
+ */
+struct mtk_fd_ctx_meta_format {
+ u32 dataformat;
+ u32 max_buffer_size;
+ u8 flags;
+};
+
+/**
+ * MDP module's private format definitation
+ * (the same as struct mdp_format)
+ * It will be removed and changed to MDP's external interface
+ * after the integration with MDP module.
+ */
+struct mtk_fd_ctx_mdp_format {
+ u32 pixelformat;
+ u32 mdp_color;
+ u8 depth[VIDEO_MAX_PLANES];
+ u8 row_depth[VIDEO_MAX_PLANES];
+ u8 num_planes;
+ u8 walign;
+ u8 halign;
+ u8 salign;
+ u32 flags;
+};
+
+struct mtk_fd_ctx_format {
+ union {
+ struct mtk_fd_ctx_meta_format meta;
+ struct mtk_fd_ctx_mdp_format img;
+ } fmt;
+};
+
+union mtk_v4l2_fmt {
+ struct v4l2_pix_format_mplane pix_mp;
+ struct v4l2_meta_format meta;
+};
+
+/* Attributes setup by device context owner */
+struct mtk_fd_ctx_queues_setting {
+ int master;
+ /* The master input node to trigger the frame data enqueue */
+ struct mtk_fd_ctx_queue_desc *output_queue_descs;
+ int total_output_queues;
+ struct mtk_fd_ctx_queue_desc *capture_queue_descs;
+ int total_capture_queues;
+};
+
+struct mtk_fd_ctx_queue_attr {
+ int master;
+ int input_offset;
+ int total_num;
+};
+
+/**
+ * Video node context. Since we use
+ * mtk_fd_ctx_frame_bundle to manage enqueued
+ * buffers by frame now, we don't use bufs filed of
+ * mtk_fd_ctx_queue now
+ */
+struct mtk_fd_ctx_queue {
+ union mtk_v4l2_fmt fmt;
+ struct mtk_fd_ctx_format *ctx_fmt;
+
+ unsigned int width_pad;
+ /* bytesperline, reserved */
+ struct mtk_fd_ctx_queue_desc desc;
+ unsigned int buffer_usage;
+ /* Current buffer usage of the queue */
+ int rotation;
+ struct list_head bufs;
+ /* Reserved, not used now */
+};
+
+enum mtk_fd_ctx_frame_bundle_state {
+ MTK_FD_CTX_FRAME_NEW,
+ /* Not allocated */
+ MTK_FD_CTX_FRAME_PREPARED,
+ /* Allocated but has not be processed */
+ MTK_FD_CTX_FRAME_PROCESSING,
+ /* Queued, waiting to be filled */
+};
+
+/**
+ * The definiation is compatible with FD driver's state definiation
+ * currently and will be decoupled after further integration
+ */
+enum mtk_fd_ctx_frame_data_state {
+ MTK_FD_CTX_FRAME_DATA_EMPTY = 0, /* FRAME_STATE_INIT */
+ MTK_FD_CTX_FRAME_DATA_DONE = 3, /* FRAME_STATE_DONE */
+ MTK_FD_CTX_FRAME_DATA_STREAMOFF_DONE = 4, /*FRAME_STATE_STREAMOFF*/
+ MTK_FD_CTX_FRAME_DATA_ERROR = 5, /*FRAME_STATE_ERROR*/
+};
+
+struct mtk_fd_ctx_frame_bundle {
+ struct mtk_fd_ctx_buffer*
+ buffers[MTK_FD_CTX_FRAME_BUNDLE_BUFFER_MAX];
+ int id;
+ int num_img_capture_bufs;
+ int num_img_output_bufs;
+ int num_meta_capture_bufs;
+ int num_meta_output_bufs;
+ int last_index;
+ int state;
+ struct list_head list;
+};
+
+struct mtk_fd_ctx_frame_bundle_list {
+ struct list_head list;
+};
+
+struct mtk_fd_ctx {
+ struct platform_device *pdev;
+ struct platform_device *smem_device;
+ unsigned short ctx_id;
+ char device_name[12];
+ const struct mtk_fd_ctx_ops *ops;
+ struct mtk_fd_dev_node_mapping *mtk_fd_dev_node_map;
+ unsigned int dev_node_num;
+ struct mtk_fd_ctx_queue queue[MTK_FD_CTX_QUEUES];
+ struct mtk_fd_ctx_queue_attr queues_attr;
+ atomic_t frame_param_sequence;
+ int streaming;
+ void *img_vb2_alloc_ctx;
+ void *smem_vb2_alloc_ctx;
+ struct v4l2_subdev_fh *fh;
+ struct mtk_fd_ctx_frame_bundle frame_bundles[VB2_MAX_FRAME];
+ struct mtk_fd_ctx_frame_bundle_list processing_frames;
+ struct mtk_fd_ctx_frame_bundle_list free_frames;
+ int enabled_dma_ports;
+ int num_frame_bundle;
+ int mode; /* Reserved for debug */
+ spinlock_t qlock;
+};
+
+enum mtk_fd_ctx_buffer_state {
+ MTK_FD_CTX_BUFFER_NEW,
+ MTK_FD_CTX_BUFFER_PROCESSING,
+ MTK_FD_CTX_BUFFER_DONE,
+ MTK_FD_CTX_BUFFER_FAILED,
+};
+
+struct mtk_fd_ctx_buffer {
+ union mtk_v4l2_fmt fmt;
+ struct mtk_fd_ctx_format *ctx_fmt;
+ int capture;
+ int image;
+ int frame_id;
+ int user_sequence; /* Sequence number assigned by user */
+ dma_addr_t daddr;
+ void *vaddr;
+ phys_addr_t paddr;
+ unsigned int queue;
+ unsigned int buffer_usage;
+ enum mtk_fd_ctx_buffer_state state;
+ int rotation;
+ struct list_head list;
+};
+
+struct mtk_fd_ctx_desc {
+ char *proc_dev_phandle;
+ /* The context device's compatble string name in device tree*/
+ int (*init)(struct mtk_fd_ctx *ctx);
+ /* configure the core functions of the device context */
+};
+
+struct mtk_fd_ctx_init_table {
+ int total_dev_ctx;
+ struct mtk_fd_ctx_desc *ctx_desc_tbl;
+};
+
+struct mtk_fd_ctx_finish_param {
+ unsigned int frame_id;
+ u64 timestamp;
+ unsigned int state;
+};
+
+bool mtk_fd_ctx_is_streaming(struct mtk_fd_ctx *ctx);
+
+int mtk_fd_ctx_core_job_finish(struct mtk_fd_ctx *ctx,
+ struct mtk_fd_ctx_finish_param *param);
+
+int mtk_fd_ctx_core_init(struct mtk_fd_ctx *ctx,
+ struct platform_device *pdev, int ctx_id,
+ struct mtk_fd_ctx_desc *ctx_desc,
+ struct platform_device *proc_pdev,
+ struct platform_device *smem_pdev);
+
+int mtk_fd_ctx_core_exit(struct mtk_fd_ctx *ctx);
+
+void mtk_fd_ctx_buf_init(struct mtk_fd_ctx_buffer *b, unsigned int queue,
+ dma_addr_t daddr);
+
+enum mtk_fd_ctx_buffer_state
+ mtk_fd_ctx_get_buffer_state(struct mtk_fd_ctx_buffer *b);
+
+int mtk_fd_ctx_next_global_frame_sequence(struct mtk_fd_ctx *ctx, int locked);
+
+int mtk_fd_ctx_core_queue_setup
+ (struct mtk_fd_ctx *ctx,
+ struct mtk_fd_ctx_queues_setting *queues_setting);
+
+int mtk_fd_ctx_core_finish_param_init(void *param, int frame_id, int state);
+
+int mtk_fd_ctx_finish_frame(struct mtk_fd_ctx *dev_ctx,
+ struct mtk_fd_ctx_frame_bundle *frame_bundle,
+ int done);
+
+int mtk_fd_ctx_frame_bundle_init(struct mtk_fd_ctx_frame_bundle *frame_bundle);
+
+void mtk_fd_ctx_frame_bundle_add(struct mtk_fd_ctx *ctx,
+ struct mtk_fd_ctx_frame_bundle *bundle,
+ struct mtk_fd_ctx_buffer *ctx_buf);
+
+int mtk_fd_ctx_trigger_job(struct mtk_fd_ctx *dev_ctx,
+ struct mtk_fd_ctx_frame_bundle *bundle_data);
+
+int mtk_fd_ctx_fmt_set_img(struct mtk_fd_ctx *dev_ctx, int queue_id,
+ struct v4l2_pix_format_mplane *user_fmt,
+ struct v4l2_pix_format_mplane *node_fmt);
+
+int mtk_fd_ctx_fmt_set_meta(struct mtk_fd_ctx *dev_ctx, int queue_id,
+ struct v4l2_meta_format *user_fmt,
+ struct v4l2_meta_format *node_fmt);
+
+int mtk_fd_ctx_format_load_default_fmt(struct mtk_fd_ctx_queue *queue,
+ struct v4l2_format *fmt_to_fill);
+
+int mtk_fd_ctx_streamon(struct mtk_fd_ctx *dev_ctx);
+int mtk_fd_ctx_streamoff(struct mtk_fd_ctx *dev_ctx);
+int mtk_fd_ctx_release(struct mtk_fd_ctx *dev_ctx);
+int mtk_fd_ctx_open(struct mtk_fd_ctx *dev_ctx);
+int mtk_fd_ctx_fd_init(struct mtk_fd_ctx *ctx);
+
+#endif /*__MTK_FD_CTX_H__*/
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd-dev-ctx-core.c b/drivers/media/platform/mtk-isp/fd/mtk_fd-dev-ctx-core.c
new file mode 100644
index 0000000..7314436
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd-dev-ctx-core.c
@@ -0,0 +1,912 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Frederic Chen <frederic.chen@xxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <media/videobuf2-dma-contig.h>
+#include <linux/dma-mapping.h>
+
+#include "mtk_fd.h"
+#include "mtk_fd-dev.h"
+#include "mtk_fd-smem.h"
+#include "mtk_fd-v4l2.h"
+
+#if KERNEL_VERSION(4, 8, 0) >= MTK_FD_KERNEL_BASE_VERSION
+#include <linux/dma-attrs.h>
+#endif
+
+struct vb2_v4l2_buffer *mtk_fd_ctx_buffer_get_vb2_v4l2_buffer
+(struct mtk_fd_ctx_buffer *ctx_buf)
+{
+ struct mtk_fd_dev_buffer *dev_buf = NULL;
+
+ if (!ctx_buf) {
+ pr_err("Failed to convert ctx_buf to dev_buf: Null pointer\n");
+ return NULL;
+ }
+
+ dev_buf = mtk_fd_ctx_buf_to_dev_buf(ctx_buf);
+
+ return &dev_buf->m2m2_buf.vbb;
+}
+
+int mtk_fd_ctx_core_queue_setup(struct mtk_fd_ctx *ctx,
+ struct mtk_fd_ctx_queues_setting *
+ queues_setting)
+{
+ int queue_idx = 0;
+ int i = 0;
+
+ for (i = 0; i < queues_setting->total_output_queues; i++) {
+ struct mtk_fd_ctx_queue_desc *queue_desc =
+ &queues_setting->output_queue_descs[i];
+ ctx->queue[queue_idx].desc = *queue_desc;
+ queue_idx++;
+ }
+
+ /* Setup the capture queue */
+ for (i = 0; i < queues_setting->total_capture_queues; i++) {
+ struct mtk_fd_ctx_queue_desc *queue_desc =
+ &queues_setting->capture_queue_descs[i];
+ ctx->queue[queue_idx].desc = *queue_desc;
+ queue_idx++;
+ }
+
+ ctx->queues_attr.master = queues_setting->master;
+ ctx->queues_attr.total_num = queue_idx;
+ ctx->dev_node_num = ctx->queues_attr.total_num;
+ strcpy(ctx->device_name, MTK_FD_DEV_NAME);
+ return 0;
+}
+
+/* Mediatek FD context core initialization */
+int mtk_fd_ctx_core_init(struct mtk_fd_ctx *ctx,
+ struct platform_device *pdev, int ctx_id,
+ struct mtk_fd_ctx_desc *ctx_desc,
+ struct platform_device *proc_pdev,
+ struct platform_device *smem_pdev)
+{
+ /* Initialize main data structure */
+ int r = 0;
+
+#if KERNEL_VERSION(4, 8, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ ctx->smem_vb2_alloc_ctx =
+ vb2_dma_contig_init_ctx(&smem_pdev->dev);
+ ctx->img_vb2_alloc_ctx =
+ vb2_dma_contig_init_ctx(&pdev->dev);
+#else
+ ctx->smem_vb2_alloc_ctx = &smem_pdev->dev;
+ ctx->img_vb2_alloc_ctx = &pdev->dev;
+#endif
+ if (IS_ERR((__force void *)ctx->smem_vb2_alloc_ctx))
+ pr_err("Failed to alloc vb2 dma context: smem_vb2_alloc_ctx");
+
+ if (IS_ERR((__force void *)ctx->img_vb2_alloc_ctx))
+ pr_err("Failed to alloc vb2 dma context: img_vb2_alloc_ctx");
+
+ ctx->pdev = pdev;
+ ctx->ctx_id = ctx_id;
+ /* keep th smem pdev to use related iommu functions */
+ ctx->smem_device = smem_pdev;
+
+ /* Will set default enabled after passing the unit test */
+ ctx->mode = MTK_FD_CTX_MODE_DEBUG_OFF;
+
+ /* initialized the global frame index of the device context */
+ atomic_set(&ctx->frame_param_sequence, 0);
+ spin_lock_init(&ctx->qlock);
+
+ /* setup the core operation of the device context */
+ if (ctx_desc && ctx_desc->init)
+ r = ctx_desc->init(ctx);
+
+ return r;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_core_init);
+
+int mtk_fd_ctx_core_exit(struct mtk_fd_ctx *ctx)
+{
+#if KERNEL_VERSION(4, 8, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ vb2_dma_contig_cleanup_ctx(ctx->smem_vb2_alloc_ctx);
+ vb2_dma_contig_cleanup_ctx(ctx->img_vb2_alloc_ctx);
+#else
+ ctx->smem_vb2_alloc_ctx = NULL;
+ ctx->img_vb2_alloc_ctx = NULL;
+#endif
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_core_exit);
+
+int mtk_fd_ctx_next_global_frame_sequence(struct mtk_fd_ctx *ctx, int locked)
+{
+ int global_frame_sequence =
+ atomic_inc_return(&ctx->frame_param_sequence);
+
+ if (!locked)
+ spin_lock(&ctx->qlock);
+
+ global_frame_sequence =
+ (global_frame_sequence & 0x0000FFFF) | (ctx->ctx_id << 16);
+
+ if (!locked)
+ spin_unlock(&ctx->qlock);
+
+ return global_frame_sequence;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_next_global_frame_sequence);
+
+static void mtk_fd_ctx_buffer_done
+ (struct mtk_fd_ctx_buffer *ctx_buf, int state)
+{
+ if (!ctx_buf || state != MTK_FD_CTX_BUFFER_DONE ||
+ state != MTK_FD_CTX_BUFFER_FAILED)
+ return;
+
+ ctx_buf->state = state;
+}
+
+struct mtk_fd_ctx_frame_bundle *mtk_fd_ctx_get_processing_frame
+(struct mtk_fd_ctx *dev_ctx, int frame_id)
+{
+ struct mtk_fd_ctx_frame_bundle *frame_bundle = NULL;
+
+ spin_lock(&dev_ctx->qlock);
+
+ list_for_each_entry(frame_bundle,
+ &dev_ctx->processing_frames.list, list) {
+ if (frame_bundle->id == frame_id) {
+ spin_unlock(&dev_ctx->qlock);
+ return frame_bundle;
+ }
+ }
+
+ spin_unlock(&dev_ctx->qlock);
+
+ return NULL;
+}
+
+/**
+ * structure mtk_fd_ctx_finish_param must be the first elemt of param
+ * So that the buffer can be return to vb2 queue successfully
+ */
+int mtk_fd_ctx_core_finish_param_init(void *param, int frame_id, int state)
+{
+ struct mtk_fd_ctx_finish_param *fram_param =
+ (struct mtk_fd_ctx_finish_param *)param;
+ fram_param->frame_id = frame_id;
+ fram_param->state = state;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_core_finish_param_init);
+
+void mtk_fd_ctx_frame_bundle_add(struct mtk_fd_ctx *ctx,
+ struct mtk_fd_ctx_frame_bundle *bundle,
+ struct mtk_fd_ctx_buffer *ctx_buf)
+{
+ int queue_id = 0;
+ struct mtk_fd_ctx_queue *ctx_queue = NULL;
+
+ if (!bundle || !ctx_buf) {
+ pr_warn("Add buffer to frame bundle failed, bundle(%llx),buf(%llx)\n",
+ (long long)bundle, (long long)ctx_buf);
+ return;
+ }
+
+ queue_id = ctx_buf->queue;
+
+ if (bundle->buffers[queue_id])
+ pr_warn("Queue(%d) buffer has alreay in this bundle, overwrite happen\n",
+ queue_id);
+
+ pr_debug("Add queue(%d) buffer%llx\n",
+ queue_id, (unsigned long long)ctx_buf);
+ bundle->buffers[queue_id] = ctx_buf;
+
+ /* Fill context queue related information */
+ ctx_queue = &ctx->queue[queue_id];
+
+ if (!ctx_queue) {
+ pr_err("Can't find ctx queue (%d)\n", queue_id);
+ return;
+ }
+
+ if (ctx->queue[ctx_buf->queue].desc.image) {
+ if (ctx->queue[ctx_buf->queue].desc.capture)
+ bundle->num_img_capture_bufs++;
+ else
+ bundle->num_img_output_bufs++;
+ } else {
+ if (ctx->queue[ctx_buf->queue].desc.capture)
+ bundle->num_meta_capture_bufs++;
+ else
+ bundle->num_meta_output_bufs++;
+ }
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_frame_bundle_add);
+
+void mtk_fd_ctx_buf_init(struct mtk_fd_ctx_buffer *b,
+ unsigned int queue, dma_addr_t daddr)
+{
+ b->state = MTK_FD_CTX_BUFFER_NEW;
+ b->queue = queue;
+ b->daddr = daddr;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_buf_init);
+
+enum mtk_fd_ctx_buffer_state
+ mtk_fd_ctx_get_buffer_state(struct mtk_fd_ctx_buffer *b)
+{
+ return b->state;
+}
+
+bool mtk_fd_ctx_is_streaming(struct mtk_fd_ctx *ctx)
+{
+ return ctx->streaming;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_is_streaming);
+
+static int mtk_fd_ctx_free_frame(struct mtk_fd_ctx *dev_ctx,
+ struct mtk_fd_ctx_frame_bundle *frame_bundle)
+{
+ spin_lock(&dev_ctx->qlock);
+
+ frame_bundle->state = MTK_FD_CTX_FRAME_NEW;
+ list_del(&frame_bundle->list);
+ list_add_tail(&frame_bundle->list, &dev_ctx->free_frames.list);
+
+ spin_unlock(&dev_ctx->qlock);
+
+ return 0;
+}
+
+int mtk_fd_ctx_core_job_finish(struct mtk_fd_ctx *dev_ctx,
+ struct mtk_fd_ctx_finish_param *param)
+{
+ int i = 0;
+ struct platform_device *pdev = dev_ctx->pdev;
+ struct mtk_fd_ctx_finish_param *fram_param =
+ (struct mtk_fd_ctx_finish_param *)param;
+ struct mtk_fd_dev *fd_dev = NULL;
+ struct mtk_fd_ctx_frame_bundle *frame = NULL;
+ enum vb2_buffer_state vbf_state = VB2_BUF_STATE_DONE;
+ enum mtk_fd_ctx_buffer_state ctxf_state =
+ MTK_FD_CTX_BUFFER_DONE;
+ int user_sequence = 0;
+
+ const int ctx_id =
+ MTK_FD_GET_CTX_ID_FROM_SEQUENCE(fram_param->frame_id);
+ u64 timestamp = 0;
+
+ pr_debug("mtk_fd_ctx_core_job_finish_cb: param (%llx), platform_device(%llx)\n",
+ (unsigned long long)param, (unsigned long long)pdev);
+
+ if (!dev_ctx)
+ pr_err("dev_ctx can't be null, can't release the frame\n");
+
+ fd_dev = mtk_fd_ctx_to_dev(dev_ctx);
+
+ if (fram_param) {
+ dev_info(&fd_dev->pdev->dev,
+ "CB recvied from ctx(%d), frame(%d), state(%d), fd_dev(%llx)\n",
+ ctx_id, fram_param->frame_id,
+ fram_param->state, (long long)fd_dev);
+ } else {
+ dev_err(&fd_dev->pdev->dev,
+ "CB recvied from ctx(%d), frame param is NULL\n",
+ ctx_id);
+ return -EINVAL;
+ }
+
+ /* Get the buffers of the processed frame */
+ frame = mtk_fd_ctx_get_processing_frame(&fd_dev->ctx,
+ fram_param->frame_id);
+
+ if (!frame) {
+ pr_err("Can't find the frame boundle, Frame(%d)\n",
+ fram_param->frame_id);
+ return -EINVAL;
+ }
+
+ if (fram_param->state == MTK_FD_CTX_FRAME_DATA_ERROR) {
+ vbf_state = VB2_BUF_STATE_ERROR;
+ ctxf_state = MTK_FD_CTX_BUFFER_FAILED;
+ }
+
+ /**
+ * Set the buffer's VB2 status so that
+ * the user can dequeue the buffer
+ */
+ timestamp = ktime_get_ns();
+ for (i = 0; i <= frame->last_index; i++) {
+ struct mtk_fd_ctx_buffer *ctx_buf = frame->buffers[i];
+
+ if (!ctx_buf) {
+ dev_dbg(&fd_dev->pdev->dev,
+ "ctx_buf(queue id= %d) of frame(%d)is NULL\n",
+ i, fram_param->frame_id);
+ continue;
+ } else {
+ struct vb2_v4l2_buffer *b =
+ mtk_fd_ctx_buffer_get_vb2_v4l2_buffer(ctx_buf);
+ b->vb2_buf.timestamp = ktime_get_ns();
+ user_sequence = ctx_buf->user_sequence;
+ mtk_fd_ctx_buffer_done(ctx_buf, ctxf_state);
+ mtk_fd_v4l2_buffer_done(&b->vb2_buf, vbf_state);
+ }
+ }
+
+ mtk_fd_ctx_free_frame(&fd_dev->ctx, frame);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_core_job_finish);
+
+int mtk_fd_ctx_finish_frame(struct mtk_fd_ctx *dev_ctx,
+ struct mtk_fd_ctx_frame_bundle *frame_bundle,
+ int done)
+{
+ spin_lock(&dev_ctx->qlock);
+ frame_bundle->state = MTK_FD_CTX_FRAME_PROCESSING;
+ list_add_tail(&frame_bundle->list, &dev_ctx->processing_frames.list);
+ spin_unlock(&dev_ctx->qlock);
+ return 0;
+}
+
+static void set_img_fmt(struct v4l2_pix_format_mplane *mfmt_to_fill,
+ struct mtk_fd_ctx_format *ctx_fmt)
+{
+ int i = 0;
+
+ mfmt_to_fill->pixelformat = ctx_fmt->fmt.img.pixelformat;
+ mfmt_to_fill->num_planes = ctx_fmt->fmt.img.num_planes;
+
+ pr_info("%s: Fmt(%d),w(%d),h(%d)\n",
+ __func__,
+ mfmt_to_fill->pixelformat,
+ mfmt_to_fill->width,
+ mfmt_to_fill->height);
+
+ /**
+ * The implementation wil be adjust after integrating MDP module
+ * since it provides the common format suppporting function
+ */
+ for (i = 0 ; i < mfmt_to_fill->num_planes; ++i) {
+ int bpl = (mfmt_to_fill->width *
+ ctx_fmt->fmt.img.row_depth[i]) / 8;
+ int sizeimage = (mfmt_to_fill->width * mfmt_to_fill->height *
+ ctx_fmt->fmt.img.depth[i]) / 8;
+
+ mfmt_to_fill->plane_fmt[i].bytesperline = bpl;
+ mfmt_to_fill->plane_fmt[i].sizeimage = sizeimage;
+ pr_info("plane(%d):bpl(%d),sizeimage(%u)\n",
+ i, bpl, mfmt_to_fill->plane_fmt[i].sizeimage);
+ }
+}
+
+static void set_meta_fmt(struct v4l2_meta_format *metafmt_to_fill,
+ struct mtk_fd_ctx_format *ctx_fmt)
+{
+ metafmt_to_fill->dataformat = ctx_fmt->fmt.meta.dataformat;
+
+ if (ctx_fmt->fmt.meta.max_buffer_size <= 0 ||
+ ctx_fmt->fmt.meta.max_buffer_size >
+ MTK_FD_CTX_META_BUF_DEFAULT_SIZE) {
+ pr_warn("buf size of meta(%u) can't be 0, use default %u\n",
+ ctx_fmt->fmt.meta.dataformat,
+ MTK_FD_CTX_META_BUF_DEFAULT_SIZE);
+ metafmt_to_fill->buffersize = MTK_FD_CTX_META_BUF_DEFAULT_SIZE;
+ } else {
+ pr_info("Load the meta size setting %u\n",
+ ctx_fmt->fmt.meta.max_buffer_size);
+ metafmt_to_fill->buffersize = ctx_fmt->fmt.meta.max_buffer_size;
+ }
+}
+
+/* Get the default format setting */
+int mtk_fd_ctx_format_load_default_fmt(struct mtk_fd_ctx_queue *queue,
+ struct v4l2_format *fmt_to_fill)
+{
+ struct mtk_fd_ctx_format *ctx_fmt = NULL;
+
+ if (queue->desc.num_fmts == 0)
+ return 0; /* no format support list associated to this queue */
+
+ if (queue->desc.default_fmt_idx >= queue->desc.num_fmts) {
+ pr_warn("Queue(%s) err: default idx(%d) must < num_fmts(%d)\n",
+ queue->desc.name, queue->desc.default_fmt_idx,
+ queue->desc.num_fmts);
+ queue->desc.default_fmt_idx = 0;
+ pr_warn("Queue(%s) : reset default idx(%d)\n",
+ queue->desc.name, queue->desc.default_fmt_idx);
+ }
+
+ ctx_fmt = &queue->desc.fmts[queue->desc.default_fmt_idx];
+
+ /* Check the type of the buffer */
+ if (queue->desc.image) {
+ struct v4l2_pix_format_mplane *node_fmt =
+ &fmt_to_fill->fmt.pix_mp;
+
+ if (queue->desc.capture) {
+ fmt_to_fill->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+ node_fmt->width = MTK_FD_OUTPUT_MAX_WIDTH;
+ node_fmt->height = MTK_FD_OUTPUT_MAX_HEIGHT;
+ } else {
+ fmt_to_fill->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+ node_fmt->width = MTK_FD_INPUT_MAX_WIDTH;
+ node_fmt->height = MTK_FD_INPUT_MAX_HEIGHT;
+ }
+ set_img_fmt(node_fmt, ctx_fmt);
+ } else {
+ /* meta buffer type */
+ struct v4l2_meta_format *node_fmt = &fmt_to_fill->fmt.meta;
+
+ if (queue->desc.capture)
+ fmt_to_fill->type = V4L2_BUF_TYPE_META_CAPTURE;
+ else
+ fmt_to_fill->type = V4L2_BUF_TYPE_META_OUTPUT;
+
+ set_meta_fmt(node_fmt, ctx_fmt);
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_format_load_default_fmt);
+
+static struct mtk_fd_ctx_format *mtk_fd_ctx_find_fmt
+ (struct mtk_fd_ctx_queue *queue, u32 format)
+{
+ int i;
+ struct mtk_fd_ctx_format *ctx_fmt;
+
+ for (i = 0; i < queue->desc.num_fmts; i++) {
+ ctx_fmt = &queue->desc.fmts[i];
+ if (queue->desc.image) {
+ pr_debug("idx(%d), pixelformat(%x), fmt(%x)\n",
+ i, ctx_fmt->fmt.img.pixelformat, format);
+ if (ctx_fmt->fmt.img.pixelformat == format)
+ return ctx_fmt;
+ } else {
+ if (ctx_fmt->fmt.meta.dataformat == format)
+ return ctx_fmt;
+ }
+ }
+ return NULL;
+}
+
+int mtk_fd_ctx_fmt_set_meta(struct mtk_fd_ctx *dev_ctx, int queue_id,
+ struct v4l2_meta_format *user_fmt,
+ struct v4l2_meta_format *node_fmt)
+{
+ struct mtk_fd_ctx_queue *queue = NULL;
+ struct mtk_fd_ctx_format *ctx_fmt;
+
+ if (queue_id >= dev_ctx->queues_attr.total_num) {
+ pr_err("Invalid queue id:%d\n", queue_id);
+ return -EINVAL;
+ }
+
+ queue = &dev_ctx->queue[queue_id];
+ if (!user_fmt || !node_fmt)
+ return -EINVAL;
+
+ ctx_fmt = mtk_fd_ctx_find_fmt(queue, user_fmt->dataformat);
+ if (!ctx_fmt)
+ return -EINVAL;
+
+ queue->ctx_fmt = ctx_fmt;
+ set_meta_fmt(node_fmt, ctx_fmt);
+ *user_fmt = *node_fmt;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_fmt_set_meta);
+
+int mtk_fd_ctx_fmt_set_img(struct mtk_fd_ctx *dev_ctx, int queue_id,
+ struct v4l2_pix_format_mplane *user_fmt,
+ struct v4l2_pix_format_mplane *node_fmt)
+{
+ struct mtk_fd_ctx_queue *queue = NULL;
+ struct mtk_fd_ctx_format *ctx_fmt;
+
+ if (queue_id >= dev_ctx->queues_attr.total_num) {
+ pr_err("Invalid queue id:%d\n", queue_id);
+ return -EINVAL;
+ }
+
+ queue = &dev_ctx->queue[queue_id];
+ if (!user_fmt || !node_fmt)
+ return -EINVAL;
+
+ ctx_fmt = mtk_fd_ctx_find_fmt(queue, user_fmt->pixelformat);
+ if (!ctx_fmt)
+ return -EINVAL;
+
+ queue->ctx_fmt = ctx_fmt;
+ node_fmt->width = user_fmt->width;
+ node_fmt->height = user_fmt->height;
+
+ set_img_fmt(node_fmt, ctx_fmt);
+
+ *user_fmt = *node_fmt;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_fmt_set_img);
+
+int mtk_fd_ctx_streamon(struct mtk_fd_ctx *dev_ctx)
+{
+ int ret = 0;
+
+ if (dev_ctx->streaming) {
+ pr_warn("stream on failed, pdev(%llx), ctx(%d) already stream on\n",
+ (long long)dev_ctx->pdev, dev_ctx->ctx_id);
+ return -EBUSY;
+ }
+
+ ret = mtk_fd_streamon(dev_ctx->pdev, dev_ctx->ctx_id);
+ if (ret) {
+ pr_err("streamon: ctx(%d) failed, notified by context\n",
+ dev_ctx->ctx_id);
+ return -EBUSY;
+ }
+
+ dev_ctx->streaming = true;
+ ret = mtk_fd_dev_queue_buffers(mtk_fd_ctx_to_dev(dev_ctx), true);
+ if (ret)
+ pr_err("failed to queue initial buffers (%d)", ret);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_streamon);
+
+int mtk_fd_ctx_streamoff(struct mtk_fd_ctx *dev_ctx)
+{
+ int ret = 0;
+
+ if (!dev_ctx->streaming) {
+ pr_warn("Do nothing, pdev(%llx), ctx(%d) is already stream off\n",
+ (long long)dev_ctx->pdev, dev_ctx->ctx_id);
+ return -EBUSY;
+ }
+
+ ret = mtk_fd_streamoff(dev_ctx->pdev, dev_ctx->ctx_id);
+ if (ret) {
+ pr_warn("streamoff: ctx(%d) failed, notified by context\n",
+ dev_ctx->ctx_id);
+ return -EBUSY;
+ }
+
+ dev_ctx->streaming = false;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_streamoff);
+
+int mtk_fd_ctx_init_frame_bundles(struct mtk_fd_ctx *dev_ctx)
+{
+ int i = 0;
+
+ dev_ctx->num_frame_bundle = VB2_MAX_FRAME;
+
+ spin_lock(&dev_ctx->qlock);
+
+ /* Reset the queue*/
+ INIT_LIST_HEAD(&dev_ctx->processing_frames.list);
+ INIT_LIST_HEAD(&dev_ctx->free_frames.list);
+
+ for (i = 0; i < dev_ctx->num_frame_bundle; i++) {
+ struct mtk_fd_ctx_frame_bundle *frame_bundle =
+ &dev_ctx->frame_bundles[i];
+ frame_bundle->state = MTK_FD_CTX_FRAME_NEW;
+ list_add_tail(&frame_bundle->list, &dev_ctx->free_frames.list);
+ }
+
+ spin_unlock(&dev_ctx->qlock);
+
+ return 0;
+}
+
+int mtk_fd_ctx_open(struct mtk_fd_ctx *dev_ctx)
+{
+ struct mtk_fd_dev *fd_dev = mtk_fd_ctx_to_dev(dev_ctx);
+ unsigned int enabled_dma_ports = 0;
+ int i = 0;
+
+ if (!dev_ctx)
+ return -EINVAL;
+
+ /* Get the enabled DMA ports */
+ for (i = 0; i < fd_dev->mem2mem2.num_nodes; i++) {
+ if (fd_dev->mem2mem2.nodes[i].enabled)
+ enabled_dma_ports |= dev_ctx->queue[i].desc.dma_port;
+ }
+
+ dev_ctx->enabled_dma_ports = enabled_dma_ports;
+
+ dev_dbg(&fd_dev->pdev->dev, "open device: (%llx)\n",
+ (long long)&fd_dev->pdev->dev);
+
+ /* Workaround for SCP EMI access */
+ mtk_fd_smem_enable_mpu(&dev_ctx->smem_device->dev);
+
+ /* Init the frame bundle pool */
+ mtk_fd_ctx_init_frame_bundles(dev_ctx);
+
+ return mtk_fd_open(dev_ctx->pdev);
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_open);
+
+int mtk_fd_ctx_release(struct mtk_fd_ctx *dev_ctx)
+{
+ return mtk_fd_release(dev_ctx->pdev);
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_release);
+
+static int mtk_fd_ctx_core_job_start(struct mtk_fd_ctx *dev_ctx,
+ struct mtk_fd_ctx_frame_bundle *bundle)
+{
+ struct platform_device *pdev = dev_ctx->pdev;
+ int ret = 0;
+ struct v4l2_fd_param fd_param;
+ struct mtk_fd_ctx_buffer *ctx_buf_yuv_in = NULL;
+ struct mtk_fd_ctx_buffer *ctx_buf_meta_in = NULL;
+ struct mtk_fd_ctx_buffer *ctx_buf_meta_out = NULL;
+
+ if (!pdev || !bundle) {
+ dev_err(&pdev->dev,
+ "pdev(%llx) and param(%llx) in start can't be NULL\n",
+ (long long)pdev, (long long)bundle);
+ return -EINVAL;
+ }
+ memset(&fd_param, 0, sizeof(struct v4l2_fd_param));
+ fd_param.frame_id = bundle->id;
+
+ /* Img-in buffer */
+ ctx_buf_yuv_in = bundle->buffers[MTK_FD_CTX_FD_YUV_IN];
+ if (ctx_buf_yuv_in) {
+ fd_param.src_img.iova = (uint32_t)ctx_buf_yuv_in->daddr;
+ fd_param.src_img.va = (uint64_t)ctx_buf_yuv_in->vaddr;
+ fd_param.src_img_h =
+ (uint16_t)ctx_buf_yuv_in->fmt.pix_mp.height;
+ fd_param.src_img_w =
+ (uint16_t)ctx_buf_yuv_in->fmt.pix_mp.width;
+ }
+
+ /* Meta-in buffer */
+ ctx_buf_meta_in = bundle->buffers[MTK_FD_CTX_FD_CONFIG_IN];
+ if (ctx_buf_meta_in) {
+ fd_param.fd_user_param.va = (uint64_t)ctx_buf_meta_in->vaddr;
+ fd_param.fd_user_param.pa = (uint32_t)ctx_buf_meta_in->paddr;
+ fd_param.fd_user_param.iova = (uint32_t)ctx_buf_meta_in->daddr;
+ } else {
+ dev_err(&pdev->dev, "meta in is null!\n");
+ fd_param.fd_user_param.pa = 0;
+ fd_param.fd_user_param.va = 0;
+ fd_param.fd_user_param.iova = 0;
+ }
+
+ /* Meta-out buffer */
+ ctx_buf_meta_out = bundle->buffers[MTK_FD_CTX_FD_OUT];
+ if (ctx_buf_meta_out) {
+ fd_param.fd_user_result.va = (uint64_t)ctx_buf_meta_out->vaddr;
+ fd_param.fd_user_result.pa = (uint32_t)ctx_buf_meta_out->paddr;
+ fd_param.fd_user_result.iova =
+ (uint32_t)ctx_buf_meta_out->daddr;
+ } else {
+ dev_err(&pdev->dev, "meta out is null!\n");
+ fd_param.fd_user_result.pa = 0;
+ fd_param.fd_user_result.va = 0;
+ fd_param.fd_user_result.iova = 0;
+ }
+
+ dev_info(&pdev->dev,
+ "Delegate job to mtk_fd_enqueue: pdev(0x%llx), frame(%d)\n",
+ (long long)pdev, bundle->id);
+ ret = mtk_fd_enqueue(pdev, &fd_param);
+
+ if (ret) {
+ dev_warn(&pdev->dev, "mtk_fd_enqueue failed: %d\n", ret);
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+static void debug_bundle(struct mtk_fd_ctx_frame_bundle *bundle_data)
+{
+ int i = 0;
+
+ if (!bundle_data) {
+ pr_warn("bundle_data is NULL\n");
+ return;
+ }
+
+ pr_debug("bundle buf nums (%d, %d,%d,%d)\n",
+ bundle_data->num_img_capture_bufs,
+ bundle_data->num_img_output_bufs,
+ bundle_data->num_meta_capture_bufs,
+ bundle_data->num_meta_output_bufs);
+
+ for (i = 0; i < 16 ; i++) {
+ pr_debug("Bundle, buf[%d] = %llx\n",
+ i,
+ (unsigned long long)bundle_data->buffers[i]);
+ }
+
+ pr_debug("Bundle last idx: %d\n", bundle_data->last_index);
+}
+
+static struct mtk_fd_ctx_frame_bundle *mtk_fd_ctx_get_free_frame
+ (struct mtk_fd_ctx *dev_ctx)
+{
+ struct mtk_fd_ctx_frame_bundle *frame_bundle = NULL;
+
+ spin_lock(&dev_ctx->qlock);
+ list_for_each_entry(frame_bundle,
+ &dev_ctx->free_frames.list, list){
+ pr_debug("Check frame: state %d, new should be %d\n",
+ frame_bundle->state, MTK_FD_CTX_FRAME_NEW);
+ if (frame_bundle->state == MTK_FD_CTX_FRAME_NEW) {
+ frame_bundle->state = MTK_FD_CTX_FRAME_PREPARED;
+ pr_debug("Found free frame\n");
+ spin_unlock(&dev_ctx->qlock);
+ return frame_bundle;
+ }
+ }
+ spin_unlock(&dev_ctx->qlock);
+ pr_err("Can't found any bundle is MTK_FD_CTX_FRAME_NEW\n");
+ return NULL;
+}
+
+static int mtk_fd_ctx_process_frame
+ (struct mtk_fd_ctx *dev_ctx,
+ struct mtk_fd_ctx_frame_bundle *frame_bundle)
+{
+ spin_lock(&dev_ctx->qlock);
+
+ frame_bundle->state = MTK_FD_CTX_FRAME_PROCESSING;
+ list_del(&frame_bundle->list);
+ list_add_tail(&frame_bundle->list, &dev_ctx->processing_frames.list);
+
+ spin_unlock(&dev_ctx->qlock);
+ return 0;
+}
+
+int mtk_fd_ctx_trigger_job(struct mtk_fd_ctx *dev_ctx,
+ struct mtk_fd_ctx_frame_bundle *bundle_data)
+{
+ /* Scan all buffers and filled the ipi frame data*/
+ int i = 0;
+ struct mtk_fd_ctx_finish_param fram_param;
+
+ struct mtk_fd_ctx_frame_bundle *bundle =
+ mtk_fd_ctx_get_free_frame(dev_ctx);
+
+ pr_debug("Bundle data: , ctx id:%d\n",
+ dev_ctx->ctx_id);
+
+ debug_bundle(bundle_data);
+
+ if (!bundle) {
+ pr_err("bundle can't be NULL\n");
+ goto FAILE_JOB_NOT_TRIGGER;
+ }
+ if (!bundle_data) {
+ pr_err("bundle_data can't be NULL\n");
+ goto FAILE_JOB_NOT_TRIGGER;
+ }
+
+ pr_debug("Copy bundle_data->buffers to bundle->buffers\n");
+ memcpy(bundle->buffers, bundle_data->buffers,
+ sizeof(struct mtk_fd_ctx_buffer *) *
+ MTK_FD_CTX_FRAME_BUNDLE_BUFFER_MAX);
+
+ pr_debug("bundle setup (%d, %d,%d,%d)\n",
+ bundle_data->num_img_capture_bufs,
+ bundle_data->num_img_output_bufs,
+ bundle_data->num_meta_capture_bufs,
+ bundle_data->num_meta_output_bufs);
+
+ bundle->num_img_capture_bufs = bundle_data->num_img_capture_bufs;
+ bundle->num_img_output_bufs = bundle_data->num_img_output_bufs;
+ bundle->num_meta_capture_bufs = bundle_data->num_meta_capture_bufs;
+ bundle->num_meta_output_bufs = bundle_data->num_meta_output_bufs;
+ bundle->id = mtk_fd_ctx_next_global_frame_sequence(dev_ctx,
+ dev_ctx->ctx_id);
+ bundle->last_index = dev_ctx->queues_attr.total_num - 1;
+
+ debug_bundle(bundle);
+
+ pr_debug("Fill Address data\n");
+ for (i = 0; i <= bundle->last_index; i++) {
+ struct mtk_fd_ctx_buffer *ctx_buf = bundle->buffers[i];
+ struct vb2_v4l2_buffer *b = NULL;
+
+ pr_debug("Process queue[%d], ctx_buf:(%llx)\n",
+ i, (unsigned long long)ctx_buf);
+
+ if (!ctx_buf) {
+ pr_warn("queue[%d], ctx_buf is NULL!!\n", i);
+ continue;
+ }
+
+ pr_debug("Get VB2 V4L2 buffer\n");
+ b = mtk_fd_ctx_buffer_get_vb2_v4l2_buffer(ctx_buf);
+
+ ctx_buf->image = dev_ctx->queue[ctx_buf->queue].desc.image;
+ ctx_buf->capture = dev_ctx->queue[ctx_buf->queue].desc.capture;
+ /* copy the fmt setting for queue's fmt*/
+ ctx_buf->fmt = dev_ctx->queue[ctx_buf->queue].fmt;
+ ctx_buf->ctx_fmt = dev_ctx->queue[ctx_buf->queue].ctx_fmt;
+ ctx_buf->frame_id = bundle->id;
+ ctx_buf->daddr =
+ vb2_dma_contig_plane_dma_addr(&b->vb2_buf, 0);
+ pr_debug("%s:vb2_buf: type(%d),idx(%d),mem(%d)\n",
+ __func__,
+ b->vb2_buf.type,
+ b->vb2_buf.index,
+ b->vb2_buf.memory);
+ ctx_buf->vaddr = vb2_plane_vaddr(&b->vb2_buf, 0);
+ ctx_buf->buffer_usage = dev_ctx->queue[i].buffer_usage;
+ ctx_buf->rotation = dev_ctx->queue[i].rotation;
+ pr_debug("Buf: queue(%d), vaddr(%llx), daddr(%llx)",
+ ctx_buf->queue, (unsigned long long)ctx_buf->vaddr,
+ (unsigned long long)ctx_buf->daddr);
+
+ if (!ctx_buf->image) {
+ ctx_buf->paddr =
+ mtk_fd_smem_iova_to_phys
+ (&dev_ctx->smem_device->dev,
+ ctx_buf->daddr);
+ } else {
+ pr_debug("No pa: it is a image buffer\n");
+ ctx_buf->paddr = 0;
+ }
+ ctx_buf->state = MTK_FD_CTX_BUFFER_PROCESSING;
+ }
+
+ if (mtk_fd_ctx_process_frame(dev_ctx, bundle)) {
+ pr_err("mtk_fd_ctx_process_frame failed: frame(%d)\n",
+ bundle->id);
+ goto FAILE_JOB_NOT_TRIGGER;
+ }
+
+ if (dev_ctx->mode == MTK_FD_CTX_MODE_DEBUG_BYPASS_JOB_TRIGGER) {
+ memset(&fram_param, 0, sizeof(struct mtk_fd_ctx_finish_param));
+ fram_param.frame_id = bundle->id;
+ fram_param.state = MTK_FD_CTX_FRAME_DATA_DONE;
+ pr_debug("Ctx(%d) in HW bypass mode, will not trigger hw\n",
+ dev_ctx->ctx_id);
+
+ mtk_fd_ctx_core_job_finish(dev_ctx, (void *)&fram_param);
+ return 0;
+ }
+
+ if (mtk_fd_ctx_core_job_start(dev_ctx, bundle))
+ goto FAILE_JOB_NOT_TRIGGER;
+ return 0;
+
+FAILE_JOB_NOT_TRIGGER:
+ pr_debug("FAILE_JOB_NOT_TRIGGER: init fram_param: %llx\n",
+ (unsigned long long)&fram_param);
+ memset(&fram_param, 0, sizeof(struct mtk_fd_ctx_finish_param));
+ fram_param.frame_id = bundle->id;
+ fram_param.state = MTK_FD_CTX_FRAME_DATA_ERROR;
+ pr_debug("Call mtk_fd_ctx_core_job_finish_cb: fram_param: %llx",
+ (unsigned long long)&fram_param);
+ mtk_fd_ctx_core_job_finish(dev_ctx, (void *)&fram_param);
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_trigger_job);
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd-dev.c b/drivers/media/platform/mtk-isp/fd/mtk_fd-dev.c
new file mode 100644
index 0000000..7e3acf7
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd-dev.c
@@ -0,0 +1,355 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 Mediatek Corporation.
+ * Copyright (c) 2017 Intel Corporation.
+ * Copyright (C) 2017 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * MTK_FD-dev is highly based on Intel IPU 3 chrome driver
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <media/videobuf2-dma-contig.h>
+#include "mtk_fd-dev.h"
+
+static struct platform_device *mtk_fd_dev_of_find_smem_dev
+ (struct platform_device *pdev);
+
+/* Initliaze a mtk_fd_dev representing a completed HW FD */
+/* device */
+int mtk_fd_dev_init(struct mtk_fd_dev *fd_dev,
+ struct platform_device *pdev,
+ struct media_device *media_dev,
+ struct v4l2_device *v4l2_dev)
+{
+ int r = 0;
+
+ fd_dev->pdev = pdev;
+
+ mutex_init(&fd_dev->lock);
+ atomic_set(&fd_dev->qbuf_barrier, 0);
+ init_waitqueue_head(&fd_dev->buf_drain_wq);
+
+ /* v4l2 sub-device registration */
+ r = mtk_fd_dev_mem2mem2_init(fd_dev, media_dev, v4l2_dev);
+
+ if (r) {
+ dev_err(&fd_dev->pdev->dev,
+ "failed to create V4L2 devices (%d)\n", r);
+ goto failed_mem2mem2;
+ }
+
+ return 0;
+
+failed_mem2mem2:
+ mutex_destroy(&fd_dev->lock);
+ return r;
+}
+
+int mtk_fd_dev_get_total_node(struct mtk_fd_dev *mtk_fd_dev)
+{
+ return mtk_fd_dev->ctx.queues_attr.total_num;
+}
+
+int mtk_fd_dev_mem2mem2_init(struct mtk_fd_dev *fd_dev,
+ struct media_device *media_dev,
+ struct v4l2_device *v4l2_dev)
+{
+ int r, i;
+ const int queue_master = fd_dev->ctx.queues_attr.master;
+
+ pr_info("mem2mem2.name: %s\n", fd_dev->ctx.device_name);
+ fd_dev->mem2mem2.name = fd_dev->ctx.device_name;
+ fd_dev->mem2mem2.model = fd_dev->ctx.device_name;
+ fd_dev->mem2mem2.num_nodes =
+ mtk_fd_dev_get_total_node(fd_dev);
+ fd_dev->mem2mem2.vb2_mem_ops = &vb2_dma_contig_memops;
+ fd_dev->mem2mem2.buf_struct_size =
+ sizeof(struct mtk_fd_dev_buffer);
+
+ fd_dev->mem2mem2.nodes = fd_dev->mem2mem2_nodes;
+ fd_dev->mem2mem2.dev = &fd_dev->pdev->dev;
+
+ for (i = 0; i < fd_dev->ctx.dev_node_num; i++) {
+ fd_dev->mem2mem2.nodes[i].name =
+ mtk_fd_dev_get_node_name(fd_dev, i);
+ fd_dev->mem2mem2.nodes[i].output =
+ (!fd_dev->ctx.queue[i].desc.capture);
+ fd_dev->mem2mem2.nodes[i].immutable = false;
+ fd_dev->mem2mem2.nodes[i].enabled = false;
+ atomic_set(&fd_dev->mem2mem2.nodes[i].sequence, 0);
+ }
+
+ /* Master queue is always enabled */
+ fd_dev->mem2mem2.nodes[queue_master].immutable = true;
+ fd_dev->mem2mem2.nodes[queue_master].enabled = true;
+
+ pr_info("register v4l2 for %llx\n",
+ (unsigned long long)fd_dev);
+ r = mtk_fd_mem2mem2_v4l2_register(fd_dev, media_dev, v4l2_dev);
+
+ if (r) {
+ pr_err("v4l2 init failed, dev(ctx:%d)\n", fd_dev->ctx.ctx_id);
+ return r;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_dev_mem2mem2_init);
+
+void mtk_fd_dev_mem2mem2_exit(struct mtk_fd_dev *fd_dev)
+{
+ mtk_fd_v4l2_unregister(fd_dev);
+}
+EXPORT_SYMBOL_GPL(mtk_fd_dev_mem2mem2_exit);
+
+char *mtk_fd_dev_get_node_name
+ (struct mtk_fd_dev *fd_dev, int node)
+{
+ struct mtk_fd_ctx_queue_desc *mapped_queue_desc =
+ &fd_dev->ctx.queue[node].desc;
+
+ return mapped_queue_desc->name;
+}
+
+/* Get a free buffer from a video node */
+static struct mtk_fd_ctx_buffer __maybe_unused *mtk_fd_dev_queue_getbuf
+ (struct mtk_fd_dev *fd_dev, int node)
+{
+ struct mtk_fd_dev_buffer *buf;
+ int queue = -1;
+
+ if (node > fd_dev->ctx.dev_node_num || node < 0) {
+ dev_err(&fd_dev->pdev->dev, "Invalid mtk_fd_dev node.\n");
+ return NULL;
+ }
+
+ /* Get the corrosponding queue id of the video node */
+ /* Currently the queue id is the same as the node number */
+ queue = node;
+
+ if (queue < 0) {
+ dev_err(&fd_dev->pdev->dev, "Invalid mtk_fd_dev node.\n");
+ return NULL;
+ }
+
+ /* Find first free buffer from the node */
+ list_for_each_entry(buf, &fd_dev->mem2mem2.nodes[node].buffers,
+ m2m2_buf.list) {
+ if (mtk_fd_ctx_get_buffer_state(&buf->ctx_buf)
+ == MTK_FD_CTX_BUFFER_NEW)
+ return &buf->ctx_buf;
+ }
+
+ /* There were no free buffers*/
+ return NULL;
+}
+
+int mtk_fd_dev_get_queue_id_of_dev_node(struct mtk_fd_dev *fd_dev,
+ struct mtk_fd_dev_video_device *node)
+{
+ return (node - fd_dev->mem2mem2.nodes);
+}
+EXPORT_SYMBOL_GPL(mtk_fd_dev_get_queue_id_of_dev_node);
+
+int mtk_fd_dev_queue_buffers(struct mtk_fd_dev *fd_dev,
+ bool initial)
+{
+ unsigned int node;
+ int r = 0;
+ struct mtk_fd_dev_buffer *ibuf;
+ struct mtk_fd_ctx_frame_bundle bundle;
+ const int mtk_fd_dev_node_num = mtk_fd_dev_get_total_node(fd_dev);
+ const int queue_master = fd_dev->ctx.queues_attr.master;
+
+ memset(&bundle, 0, sizeof(struct mtk_fd_ctx_frame_bundle));
+
+ pr_info("%s, init(%d)\n", __func__, initial);
+
+ if (!mtk_fd_ctx_is_streaming(&fd_dev->ctx)) {
+ pr_info("%s: stream off, no hw enqueue triggered\n", __func__);
+ return 0;
+ }
+
+ mutex_lock(&fd_dev->lock);
+
+ /* Buffer set is queued to background driver (e.g. DIP, FD, and P1) */
+ /* only when master input buffer is ready */
+ if (!mtk_fd_dev_queue_getbuf(fd_dev, queue_master)) {
+ mutex_unlock(&fd_dev->lock);
+ return 0;
+ }
+
+ /* Check all node from the node after the master node */
+ for (node = (queue_master + 1) % mtk_fd_dev_node_num;
+ 1; node = (node + 1) % mtk_fd_dev_node_num) {
+ pr_info("Check node(%d), queue enabled(%d), node enabled(%d)\n",
+ node, fd_dev->queue_enabled[node],
+ fd_dev->mem2mem2.nodes[node].enabled);
+
+ /* May skip some node according the scenario in the future */
+ if (fd_dev->queue_enabled[node] ||
+ fd_dev->mem2mem2.nodes[node].enabled) {
+ struct mtk_fd_ctx_buffer *buf =
+ mtk_fd_dev_queue_getbuf(fd_dev, node);
+ char *node_name =
+ mtk_fd_dev_get_node_name(fd_dev, node);
+
+ if (!buf) {
+ dev_dbg(&fd_dev->pdev->dev,
+ "No free buffer of enabled node %s\n",
+ node_name);
+ break;
+ }
+
+ /* To show the debug message */
+ ibuf = container_of(buf,
+ struct mtk_fd_dev_buffer, ctx_buf);
+ dev_dbg(&fd_dev->pdev->dev,
+ "may queue user %s buffer idx(%d) to ctx\n",
+ node_name,
+ ibuf->m2m2_buf.vbb.vb2_buf.index);
+ mtk_fd_ctx_frame_bundle_add(&fd_dev->ctx,
+ &bundle, buf);
+ }
+
+ /* Stop if there is no free buffer in master input node */
+ if (node == queue_master) {
+ if (mtk_fd_dev_queue_getbuf(fd_dev, queue_master)) {
+ /* Has collected all buffer required */
+ mtk_fd_ctx_trigger_job(&fd_dev->ctx, &bundle);
+ } else {
+ pr_debug("no new buffer found in master node, not trigger job\n");
+ break;
+ }
+ }
+ }
+ mutex_unlock(&fd_dev->lock);
+
+ if (r && r != -EBUSY)
+ goto failed;
+
+ return 0;
+
+failed:
+ /*
+ * On error, mark all buffers as failed which are not
+ * yet queued to CSS
+ */
+ dev_err(&fd_dev->pdev->dev,
+ "failed to queue buffer to ctx on queue %i (%d)\n",
+ node, r);
+
+ if (initial)
+ /* If we were called from streamon(), no need to finish bufs */
+ return r;
+
+ for (node = 0; node < mtk_fd_dev_node_num; node++) {
+ struct mtk_fd_dev_buffer *buf, *buf0;
+
+ if (!fd_dev->queue_enabled[node])
+ continue; /* Skip disabled queues */
+
+ mutex_lock(&fd_dev->lock);
+ list_for_each_entry_safe
+ (buf, buf0,
+ &fd_dev->mem2mem2.nodes[node].buffers,
+ m2m2_buf.list) {
+ if (mtk_fd_ctx_get_buffer_state(&buf->ctx_buf) ==
+ MTK_FD_CTX_BUFFER_PROCESSING)
+ continue; /* Was already queued, skip */
+
+ mtk_fd_v4l2_buffer_done(&buf->m2m2_buf.vbb.vb2_buf,
+ VB2_BUF_STATE_ERROR);
+ }
+ mutex_unlock(&fd_dev->lock);
+ }
+
+ return r;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_dev_queue_buffers);
+
+int mtk_fd_dev_core_init(struct platform_device *pdev,
+ struct mtk_fd_dev *fd_dev,
+ struct mtk_fd_ctx_desc *ctx_desc)
+{
+ return mtk_fd_dev_core_init_ext(pdev,
+ fd_dev, ctx_desc, NULL, NULL);
+}
+EXPORT_SYMBOL_GPL(mtk_fd_dev_core_init);
+
+int mtk_fd_dev_core_init_ext(struct platform_device *pdev,
+ struct mtk_fd_dev *fd_dev,
+ struct mtk_fd_ctx_desc *ctx_desc,
+ struct media_device *media_dev,
+ struct v4l2_device *v4l2_dev)
+{
+ int r;
+ struct platform_device *smem_dev = NULL;
+
+ smem_dev = mtk_fd_dev_of_find_smem_dev(pdev);
+
+ if (!smem_dev)
+ dev_err(&pdev->dev, "failed to find smem_dev\n");
+
+ /* Device context must be initialized before device instance */
+ r = mtk_fd_ctx_core_init(&fd_dev->ctx, pdev,
+ 0, ctx_desc, pdev, smem_dev);
+
+ dev_info(&pdev->dev, "init fd_dev: %llx\n",
+ (unsigned long long)fd_dev);
+ /* init other device level members */
+ mtk_fd_dev_init(fd_dev, pdev, media_dev, v4l2_dev);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_dev_core_init_ext);
+
+int mtk_fd_dev_core_release(struct platform_device *pdev,
+ struct mtk_fd_dev *fd_dev)
+{
+ mtk_fd_dev_mem2mem2_exit(fd_dev);
+ mtk_fd_ctx_core_exit(&fd_dev->ctx);
+ mutex_destroy(&fd_dev->lock);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_dev_core_release);
+
+static struct platform_device *mtk_fd_dev_of_find_smem_dev
+ (struct platform_device *pdev)
+{
+ struct device_node *smem_dev_node = NULL;
+
+ if (!pdev) {
+ pr_err("Find_smem_dev failed, pdev can't be NULL\n");
+ return NULL;
+ }
+
+ smem_dev_node = of_parse_phandle(pdev->dev.of_node,
+ "smem_device", 0);
+
+ if (!smem_dev_node) {
+ dev_err(&pdev->dev,
+ "failed to find isp smem device for (%s)\n",
+ pdev->name);
+ return NULL;
+ }
+
+ dev_dbg(&pdev->dev, "smem of node found, try to discovery device\n");
+ return of_find_device_by_node(smem_dev_node);
+}
+
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd-dev.h b/drivers/media/platform/mtk-isp/fd/mtk_fd-dev.h
new file mode 100644
index 0000000..d2b7d77
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd-dev.h
@@ -0,0 +1,198 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Copyright (c) 2018 Mediatek Corporation.
+ * Copyright (c) 2017 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * MTK_FD-dev is highly based on Intel IPU 3 chrome driver
+ *
+ */
+
+#ifndef __MTK_FD_DEV_H__
+#define __MTK_FD_DEV_H__
+
+#include <linux/platform_device.h>
+#include <linux/version.h>
+#include <media/v4l2-device.h>
+#include <media/videobuf2-v4l2.h>
+#include "mtk_fd-ctx.h"
+
+/* Added the macro for early stage verification */
+/* based on kernel 4.4 environment. */
+/* I will remove the version check after getting */
+/* the devlopment platform based on 4.14 */
+#define MTK_FD_KERNEL_BASE_VERSION KERNEL_VERSION(4, 14, 0)
+
+#define MTK_FD_DEV_NODE_MAX (MTK_FD_CTX_QUEUES)
+
+#define MTK_FD_INPUT_MIN_WIDTH 0U
+#define MTK_FD_INPUT_MIN_HEIGHT 0U
+#define MTK_FD_INPUT_MAX_WIDTH 480U
+#define MTK_FD_INPUT_MAX_HEIGHT 640U
+#define MTK_FD_OUTPUT_MIN_WIDTH 2U
+#define MTK_FD_OUTPUT_MIN_HEIGHT 2U
+#define MTK_FD_OUTPUT_MAX_WIDTH 480U
+#define MTK_FD_OUTPUT_MAX_HEIGHT 640U
+
+#define file_to_mtk_fd_node(__file) \
+ container_of(video_devdata(__file),\
+ struct mtk_fd_dev_video_device, vdev)
+
+#define mtk_fd_ctx_to_dev(__ctx) \
+ container_of(__ctx,\
+ struct mtk_fd_dev, ctx)
+
+#define mtk_fd_m2m_to_dev(__m2m) \
+ container_of(__m2m,\
+ struct mtk_fd_dev, mem2mem2)
+
+#define mtk_fd_subdev_to_dev(__sd) \
+ container_of(__sd, \
+ struct mtk_fd_dev, mem2mem2.subdev)
+
+#define mtk_fd_vbq_to_isp_node(__vq) \
+ container_of(__vq, \
+ struct mtk_fd_dev_video_device, vbq)
+
+#define mtk_fd_ctx_buf_to_dev_buf(__ctx_buf) \
+ container_of(__ctx_buf, \
+ struct mtk_fd_dev_buffer, ctx_buf)
+
+#define mtk_fd_vb2_buf_to_dev_buf(__vb) \
+ container_of(vb, \
+ struct mtk_fd_dev_buffer, \
+ m2m2_buf.vbb.vb2_buf)
+
+#define mtk_fd_vb2_buf_to_m2m_buf(__vb) \
+ container_of(__vb, \
+ struct mtk_fd_mem2mem2_buffer, \
+ vbb.vb2_buf)
+
+#define mtk_fd_subdev_to_m2m(__sd) \
+ container_of(__sd, \
+ struct mtk_fd_mem2mem2_device, subdev)
+
+struct mtk_fd_mem2mem2_device;
+
+struct mtk_fd_mem2mem2_buffer {
+ struct vb2_v4l2_buffer vbb;
+ struct list_head list;
+};
+
+struct mtk_fd_dev_buffer {
+ struct mtk_fd_mem2mem2_buffer m2m2_buf;
+ /* Intenal part */
+ struct mtk_fd_ctx_buffer ctx_buf;
+};
+
+struct mtk_fd_dev_video_device {
+ const char *name;
+ int output;
+ int immutable;
+ int enabled;
+ int queued;
+ struct v4l2_format vdev_fmt;
+ struct video_device vdev;
+ struct media_pad vdev_pad;
+ struct v4l2_mbus_framefmt pad_fmt;
+ struct vb2_queue vbq;
+ struct list_head buffers;
+ struct mutex lock; /* Protect node data */
+ atomic_t sequence;
+};
+
+struct mtk_fd_mem2mem2_device {
+ const char *name;
+ const char *model;
+ struct device *dev;
+ int num_nodes;
+ struct mtk_fd_dev_video_device *nodes;
+ const struct vb2_mem_ops *vb2_mem_ops;
+ unsigned int buf_struct_size;
+ int streaming;
+ struct v4l2_device *v4l2_dev;
+ struct media_device *media_dev;
+ struct media_pipeline pipeline;
+ struct v4l2_subdev subdev;
+ struct media_pad *subdev_pads;
+ struct v4l2_file_operations v4l2_file_ops;
+ const struct file_operations fops;
+};
+
+struct mtk_fd_dev {
+ struct platform_device *pdev;
+ struct mtk_fd_dev_video_device mem2mem2_nodes[MTK_FD_DEV_NODE_MAX];
+ int queue_enabled[MTK_FD_DEV_NODE_MAX];
+ struct mtk_fd_mem2mem2_device mem2mem2;
+ struct v4l2_device v4l2_dev;
+ struct media_device media_dev;
+ struct mtk_fd_ctx ctx;
+ struct mutex lock; /* queue protection */
+ atomic_t qbuf_barrier;
+ struct {
+ struct v4l2_rect eff;
+ struct v4l2_rect bds;
+ struct v4l2_rect gdc;
+ } rect;
+ int suspend_in_stream;
+ wait_queue_head_t buf_drain_wq;
+};
+
+int mtk_fd_media_register(struct device *dev,
+ struct media_device *media_dev,
+ const char *model);
+
+int mtk_fd_v4l2_register(struct device *dev,
+ struct media_device *media_dev,
+ struct v4l2_device *v4l2_dev);
+
+int mtk_fd_v4l2_unregister(struct mtk_fd_dev *dev);
+
+int mtk_fd_mem2mem2_v4l2_register(struct mtk_fd_dev *dev,
+ struct media_device *media_dev,
+ struct v4l2_device *v4l2_dev);
+
+void mtk_fd_v4l2_buffer_done(struct vb2_buffer *vb,
+ enum vb2_buffer_state state);
+
+int mtk_fd_dev_queue_buffers(struct mtk_fd_dev *dev, bool initial);
+
+int mtk_fd_dev_get_total_node(struct mtk_fd_dev *mtk_fd_dev);
+
+char *mtk_fd_dev_get_node_name(struct mtk_fd_dev *mtk_fd_dev_obj, int node);
+
+int mtk_fd_dev_init(struct mtk_fd_dev *fd_dev,
+ struct platform_device *pdev,
+ struct media_device *media_dev,
+ struct v4l2_device *v4l2_dev);
+
+void mtk_fd_dev_mem2mem2_exit(struct mtk_fd_dev *mtk_fd_dev_obj);
+
+int mtk_fd_dev_mem2mem2_init(struct mtk_fd_dev *fd_dev,
+ struct media_device *media_dev,
+ struct v4l2_device *v4l2_dev);
+
+int mtk_fd_dev_get_queue_id_of_dev_node(struct mtk_fd_dev *mtk_fd_dev_obj,
+ struct mtk_fd_dev_video_device *node);
+
+int mtk_fd_dev_core_init(struct platform_device *pdev,
+ struct mtk_fd_dev *fd_dev,
+ struct mtk_fd_ctx_desc *ctx_desc);
+
+int mtk_fd_dev_core_init_ext(struct platform_device *pdev,
+ struct mtk_fd_dev *fd_dev,
+ struct mtk_fd_ctx_desc *ctx_desc,
+ struct media_device *media_dev,
+ struct v4l2_device *v4l2_dev);
+
+int mtk_fd_dev_core_release(struct platform_device *pdev,
+ struct mtk_fd_dev *fd_dev);
+
+#endif /* __MTK_FD_DEV_H__ */
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd-smem-drv.c b/drivers/media/platform/mtk-isp/fd/mtk_fd-smem-drv.c
new file mode 100644
index 0000000..99a852d
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd-smem-drv.c
@@ -0,0 +1,452 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Frederic Chen <frederic.chen@xxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/of_reserved_mem.h>
+#include <linux/dma-contiguous.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/iommu.h>
+#include <asm/cacheflush.h>
+
+#define MTK_FD_SMEM_DEV_NAME "MTK-FD-SMEM"
+
+struct mtk_fd_smem_drv {
+ struct platform_device *pdev;
+ struct sg_table sgt;
+ struct page **smem_pages;
+ int num_smem_pages;
+ phys_addr_t smem_base;
+ dma_addr_t smem_dma_base;
+ int smem_size;
+};
+
+static struct reserved_mem *isp_reserved_smem;
+
+static int mtk_fd_smem_setup_dma_ops(struct device *smem_dev,
+ const struct dma_map_ops *smem_ops);
+
+static int mtk_fd_smem_get_sgtable(struct device *dev,
+ struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t dma_addr,
+ size_t size, unsigned long attrs);
+
+static const struct dma_map_ops smem_dma_ops = {
+ .get_sgtable = mtk_fd_smem_get_sgtable,
+};
+
+static int mtk_fd_smem_init(struct mtk_fd_smem_drv **mtk_fd_smem_drv_out,
+ struct platform_device *pdev)
+{
+ struct mtk_fd_smem_drv *isp_sys = NULL;
+ struct device *dev = &pdev->dev;
+
+ isp_sys = devm_kzalloc(dev,
+ sizeof(*isp_sys), GFP_KERNEL);
+
+ isp_sys->pdev = pdev;
+
+ *mtk_fd_smem_drv_out = isp_sys;
+
+ return 0;
+}
+
+static int mtk_fd_smem_drv_probe(struct platform_device *pdev)
+{
+ struct mtk_fd_smem_drv *smem_drv = NULL;
+ int r = 0;
+ struct device *dev = &pdev->dev;
+
+ dev_dbg(dev, "probe mtk_fd_smem_drv\n");
+
+ r = mtk_fd_smem_init(&smem_drv, pdev);
+
+ if (!smem_drv)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, smem_drv);
+
+ if (isp_reserved_smem) {
+ dma_addr_t dma_addr;
+ phys_addr_t addr;
+ struct iommu_domain *smem_dom;
+ int i = 0;
+ int size_align = 0;
+ struct page **pages = NULL;
+ int n_pages = 0;
+ struct sg_table *sgt = &smem_drv->sgt;
+
+ size_align = round_down(isp_reserved_smem->size,
+ PAGE_SIZE);
+ n_pages = size_align >> PAGE_SHIFT;
+
+ pages = kmalloc_array(n_pages, sizeof(struct page *),
+ GFP_KERNEL);
+
+ if (!pages)
+ return -ENOMEM;
+
+ for (i = 0; i < n_pages; i++)
+ pages[i] = phys_to_page(isp_reserved_smem->base
+ + i * PAGE_SIZE);
+
+ r = sg_alloc_table_from_pages(sgt, pages, n_pages, 0,
+ size_align, GFP_KERNEL);
+
+ if (r) {
+ dev_err(dev, "failed to get alloca sg table\n");
+ return -ENOMEM;
+ }
+
+ dma_map_sg_attrs(dev, sgt->sgl, sgt->nents,
+ DMA_BIDIRECTIONAL,
+ DMA_ATTR_SKIP_CPU_SYNC);
+
+ dma_addr = sg_dma_address(sgt->sgl);
+ smem_dom = iommu_get_domain_for_dev(dev);
+ addr = iommu_iova_to_phys(smem_dom, dma_addr);
+
+ if (addr != isp_reserved_smem->base)
+ dev_err(dev,
+ "incorrect pa(%llx) from iommu_iova_to_phys, should be %llx\n",
+ (unsigned long long)addr,
+ (unsigned long long)isp_reserved_smem->base);
+
+ r = dma_declare_coherent_memory(dev,
+ isp_reserved_smem->base,
+ dma_addr, size_align, DMA_MEMORY_EXCLUSIVE);
+
+ dev_dbg(dev,
+ "Coherent mem base(%llx,%llx),size(%lx),ret(%d)\n",
+ isp_reserved_smem->base,
+ dma_addr, size_align, r);
+
+ smem_drv->smem_base = isp_reserved_smem->base;
+ smem_drv->smem_size = size_align;
+ smem_drv->smem_pages = pages;
+ smem_drv->num_smem_pages = n_pages;
+ smem_drv->smem_dma_base = dma_addr;
+
+ dev_dbg(dev, "smem_drv setting (%llx,%lx,%llx,%d)\n",
+ smem_drv->smem_base, smem_drv->smem_size,
+ (unsigned long long)smem_drv->smem_pages,
+ smem_drv->num_smem_pages);
+ }
+
+ r = mtk_fd_smem_setup_dma_ops(dev, &smem_dma_ops);
+
+ return r;
+}
+
+phys_addr_t mtk_fd_smem_iova_to_phys(struct device *dev,
+ dma_addr_t iova)
+{
+ struct iommu_domain *smem_dom;
+ phys_addr_t addr;
+ phys_addr_t limit;
+ struct mtk_fd_smem_drv *smem_dev =
+ dev_get_drvdata(dev);
+
+ if (!smem_dev)
+ return 0;
+
+ smem_dom = iommu_get_domain_for_dev(dev);
+
+ if (!smem_dom)
+ return 0;
+
+ addr = iommu_iova_to_phys(smem_dom, iova);
+
+ limit = smem_dev->smem_base + smem_dev->smem_size;
+
+ if (addr < smem_dev->smem_base || addr >= limit) {
+ dev_err(dev,
+ "Unexpected paddr %pa (must >= %pa and <%pa)\n",
+ &addr, &smem_dev->smem_base, &limit);
+ return 0;
+ }
+ dev_dbg(dev, "Pa verifcation pass: %pa(>=%pa, <%pa)\n",
+ &addr, &smem_dev->smem_base, &limit);
+ return addr;
+}
+
+static int mtk_fd_smem_drv_remove(struct platform_device *pdev)
+{
+ struct mtk_fd_smem_drv *smem_drv =
+ dev_get_drvdata(&pdev->dev);
+
+ kfree(smem_drv->smem_pages);
+ return 0;
+}
+
+static int mtk_fd_smem_drv_suspend(struct device *dev)
+{
+ return 0;
+}
+
+static int mtk_fd_smem_drv_resume(struct device *dev)
+{
+ return 0;
+}
+
+static int mtk_fd_smem_drv_dummy_cb(struct device *dev)
+{
+ return 0;
+}
+
+static const struct dev_pm_ops mtk_fd_smem_drv_pm_ops = {
+ SET_RUNTIME_PM_OPS(&mtk_fd_smem_drv_dummy_cb,
+ &mtk_fd_smem_drv_dummy_cb, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS
+ (&mtk_fd_smem_drv_suspend, &mtk_fd_smem_drv_resume)
+};
+
+static const struct of_device_id mtk_fd_smem_drv_of_match[] = {
+ {
+ .compatible = "mediatek,fd_smem",
+ },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, mtk_fd_smem_drv_of_match);
+
+static struct platform_driver mtk_fd_smem_driver = {
+ .probe = mtk_fd_smem_drv_probe,
+ .remove = mtk_fd_smem_drv_remove,
+ .driver = {
+ .name = MTK_FD_SMEM_DEV_NAME,
+ .of_match_table =
+ of_match_ptr(mtk_fd_smem_drv_of_match),
+ .pm = &mtk_fd_smem_drv_pm_ops,
+ },
+};
+
+static int __init mtk_fd_smem_dma_setup(struct reserved_mem
+ *rmem)
+{
+ unsigned long node = rmem->fdt_node;
+
+ if (of_get_flat_dt_prop(node, "reusable", NULL))
+ return -EINVAL;
+
+ if (!of_get_flat_dt_prop(node, "no-map", NULL)) {
+ pr_err("Reserved memory: regions without no-map are not yet supported\n");
+ return -EINVAL;
+ }
+
+ isp_reserved_smem = rmem;
+
+ pr_debug("Reserved memory: created DMA memory pool at %pa, size %ld MiB\n",
+ &rmem->base, (unsigned long)rmem->size / SZ_1M);
+ return 0;
+}
+
+RESERVEDMEM_OF_DECLARE(mtk_fd_smem,
+ "mediatek,reserve-memory-fd_smem",
+ mtk_fd_smem_dma_setup);
+
+int __init mtk_fd_smem_drv_init(void)
+{
+ int ret = 0;
+
+ pr_debug("platform_driver_register: mtk_fd_smem_driver\n");
+ ret = platform_driver_register(&mtk_fd_smem_driver);
+
+ if (ret)
+ pr_warn("fd smem drv init failed, driver didn't probe\n");
+
+ return ret;
+}
+subsys_initcall(mtk_fd_smem_drv_init);
+
+void __exit mtk_fd_smem_drv_ext(void)
+{
+ platform_driver_unregister(&mtk_fd_smem_driver);
+}
+module_exit(mtk_fd_smem_drv_ext);
+
+/********************************************
+ * MTK FD SMEM DMA ops *
+ ********************************************/
+
+struct dma_coherent_mem {
+ void *virt_base;
+ dma_addr_t device_base;
+ unsigned long pfn_base;
+ int size;
+ int flags;
+ unsigned long *bitmap;
+ spinlock_t spinlock; /* protect the members in dma_coherent_mem */
+ bool use_dev_dma_pfn_offset;
+};
+
+static struct dma_coherent_mem *dev_get_coherent_memory(struct device *dev)
+{
+ if (dev && dev->dma_mem)
+ return dev->dma_mem;
+ return NULL;
+}
+
+static int mtk_fd_smem_get_sgtable(struct device *dev,
+ struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t dma_addr,
+ size_t size, unsigned long attrs)
+{
+ struct mtk_fd_smem_drv *smem_dev = dev_get_drvdata(dev);
+ int n_pages_align = 0;
+ int size_align = 0;
+ int page_start = 0;
+ unsigned long long offset_p = 0;
+ unsigned long long offset_d = 0;
+
+ phys_addr_t paddr = mtk_fd_smem_iova_to_phys(dev, dma_addr);
+
+ offset_d = (unsigned long long)dma_addr -
+ (unsigned long long)smem_dev->smem_dma_base;
+
+ offset_p = (unsigned long long)paddr -
+ (unsigned long long)smem_dev->smem_base;
+
+ dev_dbg(dev, "%s:dma_addr:%llx,cpu_addr:%llx,pa:%llx,size:%d\n",
+ __func__,
+ (unsigned long long)dma_addr,
+ (unsigned long long)cpu_addr,
+ (unsigned long long)paddr,
+ size
+ );
+
+ dev_dbg(dev, "%s:offset p:%llx,offset d:%llx\n",
+ __func__,
+ (unsigned long long)offset_p,
+ (unsigned long long)offset_d
+ );
+
+ size_align = round_up(size, PAGE_SIZE);
+ n_pages_align = size_align >> PAGE_SHIFT;
+ page_start = offset_p >> PAGE_SHIFT;
+
+ dev_dbg(dev,
+ "%s:page idx:%d,page pa:%llx,pa:%llx, aligned size:%d\n",
+ __func__,
+ page_start,
+ (unsigned long long)page_to_phys(*(smem_dev->smem_pages
+ + page_start)),
+ (unsigned long long)paddr,
+ size_align
+ );
+
+ if (!smem_dev) {
+ dev_err(dev, "can't get sgtable from smem_dev\n");
+ return -EINVAL;
+ }
+
+ dev_dbg(dev, "get sgt of the smem: %d pages\n", n_pages_align);
+
+ return sg_alloc_table_from_pages(sgt,
+ smem_dev->smem_pages + page_start,
+ n_pages_align,
+ 0, size_align, GFP_KERNEL);
+}
+
+static void *mtk_fd_smem_get_cpu_addr(struct mtk_fd_smem_drv *smem_dev,
+ struct scatterlist *sg)
+{
+ struct device *dev = &smem_dev->pdev->dev;
+ struct dma_coherent_mem *dma_mem =
+ dev_get_coherent_memory(dev);
+
+ phys_addr_t addr = (phys_addr_t)sg_phys(sg);
+
+ if (addr < smem_dev->smem_base ||
+ addr > smem_dev->smem_base + smem_dev->smem_size) {
+ dev_err(dev, "Invalid paddr 0x%llx from sg\n", addr);
+ return NULL;
+ }
+
+ return dma_mem->virt_base + (addr - smem_dev->smem_base);
+}
+
+static void mtk_fd_smem_sync_sg_for_cpu(struct device *dev,
+ struct scatterlist *sgl, int nelems,
+ enum dma_data_direction dir)
+{
+ struct mtk_fd_smem_drv *smem_dev =
+ dev_get_drvdata(dev);
+ void *cpu_addr;
+
+ cpu_addr = mtk_fd_smem_get_cpu_addr(smem_dev, sgl);
+
+ dev_dbg(dev,
+ "__dma_unmap_area:paddr(0x%llx),vaddr(0x%llx),size(%d)\n",
+ (unsigned long long)sg_phys(sgl),
+ (unsigned long long)cpu_addr,
+ sgl->length);
+
+ __dma_unmap_area(cpu_addr, sgl->length, dir);
+}
+
+static void mtk_fd_smem_sync_sg_for_device(struct device *dev,
+ struct scatterlist *sgl, int nelems,
+ enum dma_data_direction dir)
+{
+ struct mtk_fd_smem_drv *smem_dev =
+ dev_get_drvdata(dev);
+ void *cpu_addr;
+
+ cpu_addr = mtk_fd_smem_get_cpu_addr(smem_dev, sgl);
+
+ dev_dbg(dev,
+ "__dma_map_area:paddr(0x%llx),vaddr(0x%llx),size(%d)\n",
+ (unsigned long long)sg_phys(sgl),
+ (unsigned long long)cpu_addr,
+ sgl->length);
+
+ __dma_map_area(cpu_addr, sgl->length, dir);
+}
+
+static int mtk_fd_smem_setup_dma_ops(struct device *dev,
+ const struct dma_map_ops *smem_ops)
+{
+ if (!dev->dma_ops)
+ return -EINVAL;
+
+ memcpy((void *)smem_ops, dev->dma_ops, sizeof(*smem_ops));
+
+ ((struct dma_map_ops *)smem_ops)->get_sgtable =
+ mtk_fd_smem_get_sgtable;
+ ((struct dma_map_ops *)smem_ops)->sync_sg_for_device =
+ mtk_fd_smem_sync_sg_for_device;
+ ((struct dma_map_ops *)smem_ops)->sync_sg_for_cpu =
+ mtk_fd_smem_sync_sg_for_cpu;
+
+ dev->dma_ops = smem_ops;
+
+ return 0;
+}
+
+void mtk_fd_smem_enable_mpu(struct device *dev)
+{
+ dev_warn(dev, "MPU enabling func is not ready now\n");
+}
+
+MODULE_AUTHOR("Frederic Chen <frederic.chen@xxxxxxxxxxxx>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Mediatek FD shared memory driver");
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd-smem.h b/drivers/media/platform/mtk-isp/fd/mtk_fd-smem.h
new file mode 100644
index 0000000..a19fc37
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd-smem.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Frederic Chen <frederic.chen@xxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MTK_FD_SMEM_H__
+#define __MTK_FD_SMEM_H__
+
+#include <linux/dma-mapping.h>
+
+phys_addr_t mtk_fd_smem_iova_to_phys(struct device *smem_dev,
+ dma_addr_t iova);
+void mtk_fd_smem_enable_mpu(struct device *smem_dev);
+
+#endif /*__MTK_FD_SMEM_H__*/
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2-util.c b/drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2-util.c
new file mode 100644
index 0000000..ab85aea
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2-util.c
@@ -0,0 +1,1046 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 Mediatek Corporation.
+ * Copyright (c) 2017 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * MTK_FD-v4l2 is highly based on Intel IPU 3 chrome driver
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-dma-contig.h>
+#include <media/v4l2-subdev.h>
+#include <media/v4l2-event.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+
+#include "mtk_fd-dev.h"
+
+static u32 mtk_fd_node_get_v4l2_cap
+ (struct mtk_fd_ctx_queue *node_ctx);
+
+static int mtk_fd_videoc_s_meta_fmt(struct file *file, void *fh,
+ struct v4l2_format *f);
+
+static int mtk_fd_subdev_open(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh)
+{
+ struct mtk_fd_dev *fd_dev = mtk_fd_subdev_to_dev(sd);
+
+ fd_dev->ctx.fh = fh;
+
+ return mtk_fd_ctx_open(&fd_dev->ctx);
+}
+
+static int mtk_fd_subdev_close(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh)
+{
+ struct mtk_fd_dev *fd_dev = mtk_fd_subdev_to_dev(sd);
+
+ return mtk_fd_ctx_release(&fd_dev->ctx);
+}
+
+static int mtk_fd_subdev_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ int ret = 0;
+
+ struct mtk_fd_dev *fd_dev = mtk_fd_subdev_to_dev(sd);
+
+ if (enable) {
+ ret = mtk_fd_ctx_streamon(&fd_dev->ctx);
+
+ if (!ret)
+ ret = mtk_fd_dev_queue_buffers
+ (mtk_fd_ctx_to_dev(&fd_dev->ctx), true);
+ if (ret)
+ pr_err("failed to queue initial buffers (%d)", ret);
+ } else {
+ ret = mtk_fd_ctx_streamoff(&fd_dev->ctx);
+ }
+
+ if (!ret)
+ fd_dev->mem2mem2.streaming = enable;
+
+ return ret;
+}
+
+static int mtk_fd_link_setup(struct media_entity *entity,
+ const struct media_pad *local,
+ const struct media_pad *remote, u32 flags)
+{
+ struct mtk_fd_mem2mem2_device *m2m2 =
+ container_of(entity, struct mtk_fd_mem2mem2_device,
+ subdev.entity);
+ struct mtk_fd_dev *fd_dev =
+ container_of(m2m2, struct mtk_fd_dev, mem2mem2);
+
+ u32 pad = local->index;
+
+ pr_info("link setup: %d --> %d\n", pad, remote->index);
+
+#if KERNEL_VERSION(4, 5, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ WARN_ON(entity->type != MEDIA_ENT_T_V4L2_SUBDEV);
+#else
+ WARN_ON(entity->obj_type != MEDIA_ENTITY_TYPE_V4L2_SUBDEV);
+#endif
+
+ WARN_ON(pad >= m2m2->num_nodes);
+
+ m2m2->nodes[pad].enabled = !!(flags & MEDIA_LNK_FL_ENABLED);
+
+ /**
+ * queue_enable can be phase out in the future since
+ * we don't have internal queue of each node in
+ * v4l2 common module
+ */
+ fd_dev->queue_enabled[pad] = m2m2->nodes[pad].enabled;
+
+ return 0;
+}
+
+static void mtk_fd_vb2_buf_queue(struct vb2_buffer *vb)
+{
+ struct mtk_fd_mem2mem2_device *m2m2 = vb2_get_drv_priv(vb->vb2_queue);
+ struct mtk_fd_dev *mtk_fd_dev = mtk_fd_m2m_to_dev(m2m2);
+ struct device *dev = &mtk_fd_dev->pdev->dev;
+ struct mtk_fd_dev_buffer *buf = NULL;
+ struct vb2_v4l2_buffer *v4l2_buf = NULL;
+ struct mtk_fd_dev_video_device *node =
+ mtk_fd_vbq_to_isp_node(vb->vb2_queue);
+ int queue = mtk_fd_dev_get_queue_id_of_dev_node(mtk_fd_dev, node);
+
+ dev_dbg(dev,
+ "queue vb2_buf: Node(%s) queue id(%d)\n",
+ node->name,
+ queue);
+
+ if (queue < 0) {
+ dev_err(m2m2->dev, "Invalid mtk_fd_dev node.\n");
+ return;
+ }
+
+ if (mtk_fd_dev->ctx.mode == MTK_FD_CTX_MODE_DEBUG_BYPASS_ALL) {
+ dev_dbg(m2m2->dev, "By pass mode, just loop back the buffer\n");
+ vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
+ return;
+ }
+
+ if (!vb)
+ pr_err("VB can't be null\n");
+
+ buf = mtk_fd_vb2_buf_to_dev_buf(vb);
+
+ if (!buf)
+ pr_err("buf can't be null\n");
+
+ v4l2_buf = to_vb2_v4l2_buffer(vb);
+
+ if (!v4l2_buf)
+ pr_err("v4l2_buf can't be null\n");
+
+ mutex_lock(&mtk_fd_dev->lock);
+
+ pr_err("init mtk_fd_ctx_buf_init, sequence(%d)\n", v4l2_buf->sequence);
+
+ /* the dma address will be filled in later frame buffer handling*/
+ mtk_fd_ctx_buf_init(&buf->ctx_buf, queue, (dma_addr_t)0);
+ pr_info("set mtk_fd_ctx_buf_init: user seq=%d\n",
+ buf->ctx_buf.user_sequence);
+
+ /* Added the buffer into the tracking list */
+ list_add_tail(&buf->m2m2_buf.list,
+ &m2m2->nodes[node - m2m2->nodes].buffers);
+ mutex_unlock(&mtk_fd_dev->lock);
+
+ /* Enqueue the buffer */
+ if (mtk_fd_dev->mem2mem2.streaming) {
+ pr_info("%s: mtk_fd_dev_queue_buffers\n", node->name);
+ mtk_fd_dev_queue_buffers(mtk_fd_dev, false);
+ }
+}
+
+#if KERNEL_VERSION(4, 5, 0) >= MTK_FD_KERNEL_BASE_VERSION
+static int mtk_fd_vb2_queue_setup(struct vb2_queue *vq,
+ const void *parg,
+ unsigned int *num_buffers,
+ unsigned int *num_planes,
+ unsigned int sizes[], void *alloc_ctxs[])
+#else
+static int mtk_fd_vb2_queue_setup(struct vb2_queue *vq,
+ unsigned int *num_buffers,
+ unsigned int *num_planes,
+ unsigned int sizes[],
+ struct device *alloc_devs[])
+#endif
+{
+ struct mtk_fd_mem2mem2_device *m2m2 = vb2_get_drv_priv(vq);
+ struct mtk_fd_dev_video_device *node = mtk_fd_vbq_to_isp_node(vq);
+ struct mtk_fd_dev *fd_dev = mtk_fd_m2m_to_dev(m2m2);
+ void *buf_alloc_ctx = NULL;
+ int queue = mtk_fd_dev_get_queue_id_of_dev_node(fd_dev, node);
+ /* Get V4L2 format with the following method */
+ const struct v4l2_format *fmt = &node->vdev_fmt;
+
+ *num_planes = 1;
+ *num_buffers = clamp_val(*num_buffers, 1, VB2_MAX_FRAME);
+
+ vq->dma_attrs |= DMA_ATTR_NON_CONSISTENT;
+ pr_info("queue(%d): cached mmap enabled\n", queue);
+
+ if (vq->type == V4L2_BUF_TYPE_META_CAPTURE ||
+ vq->type == V4L2_BUF_TYPE_META_OUTPUT) {
+ sizes[0] = fmt->fmt.meta.buffersize;
+ buf_alloc_ctx = fd_dev->ctx.smem_vb2_alloc_ctx;
+ pr_info("Select smem_vb2_alloc_ctx(%llx)\n",
+ (unsigned long long)buf_alloc_ctx);
+ } else {
+ sizes[0] = fmt->fmt.pix_mp.plane_fmt[0].sizeimage;
+ buf_alloc_ctx = fd_dev->ctx.img_vb2_alloc_ctx;
+ pr_info("Select img_vb2_alloc_ctx(%llx)\n",
+ (unsigned long long)buf_alloc_ctx);
+ }
+
+#if KERNEL_VERSION(4, 5, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ alloc_ctxs[0] = buf_alloc_ctx;
+#else
+ alloc_devs[0] = (struct device *)buf_alloc_ctx;
+#endif
+
+ pr_info("mtk_fd_vb2_queue_setup:type(%d),size(%d),ctx(%llx)\n",
+ vq->type, sizes[0], (unsigned long long)buf_alloc_ctx);
+
+ /* Initialize buffer queue */
+ INIT_LIST_HEAD(&node->buffers);
+
+ return 0;
+}
+
+static bool mtk_fd_all_nodes_streaming(struct mtk_fd_mem2mem2_device *m2m2,
+ struct mtk_fd_dev_video_device *except)
+{
+ int i;
+
+ for (i = 0; i < m2m2->num_nodes; i++) {
+ struct mtk_fd_dev_video_device *node = &m2m2->nodes[i];
+
+ if (node == except)
+ continue;
+ if (node->enabled && !vb2_start_streaming_called(&node->vbq))
+ return false;
+ }
+
+ return true;
+}
+
+static void mtk_fd_return_all_buffers(struct mtk_fd_mem2mem2_device *m2m2,
+ struct mtk_fd_dev_video_device *node,
+ enum vb2_buffer_state state)
+{
+ struct mtk_fd_dev *mtk_fd_dev = mtk_fd_m2m_to_dev(m2m2);
+ struct mtk_fd_mem2mem2_buffer *b, *b0;
+
+ /* Return all buffers */
+ mutex_lock(&mtk_fd_dev->lock);
+ list_for_each_entry_safe(b, b0, &node->buffers, list) {
+ list_del(&b->list);
+ vb2_buffer_done(&b->vbb.vb2_buf, state);
+ }
+ mutex_unlock(&mtk_fd_dev->lock);
+}
+
+static int mtk_fd_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+ struct mtk_fd_mem2mem2_device *m2m2 = vb2_get_drv_priv(vq);
+ struct mtk_fd_dev_video_device *node =
+ mtk_fd_vbq_to_isp_node(vq);
+ int r;
+
+ if (m2m2->streaming) {
+ r = -EBUSY;
+ goto fail_return_bufs;
+ }
+
+ if (!node->enabled) {
+ pr_err("Node (%ld) is not enable\n", node - m2m2->nodes);
+ r = -EINVAL;
+ goto fail_return_bufs;
+ }
+#if KERNEL_VERSION(4, 5, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ r = media_entity_pipeline_start(&node->vdev.entity, &m2m2->pipeline);
+#else
+ r = media_pipeline_start(&node->vdev.entity, &m2m2->pipeline);
+#endif
+ if (r < 0) {
+ pr_err("Node (%ld) media_pipeline_start failed\n",
+ node - m2m2->nodes);
+ goto fail_return_bufs;
+ }
+
+ if (!mtk_fd_all_nodes_streaming(m2m2, node))
+ return 0;
+
+ /* Start streaming of the whole pipeline now */
+
+ r = v4l2_subdev_call(&m2m2->subdev, video, s_stream, 1);
+ if (r < 0) {
+ pr_err("Node (%ld) v4l2_subdev_call s_stream failed\n",
+ node - m2m2->nodes);
+ goto fail_stop_pipeline;
+ }
+ return 0;
+
+fail_stop_pipeline:
+#if KERNEL_VERSION(4, 5, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ media_entity_pipeline_stop(&node->vdev.entity);
+#else
+ media_pipeline_stop(&node->vdev.entity);
+#endif
+fail_return_bufs:
+ mtk_fd_return_all_buffers(m2m2, node, VB2_BUF_STATE_QUEUED);
+
+ return r;
+}
+
+static void mtk_fd_vb2_stop_streaming(struct vb2_queue *vq)
+{
+ struct mtk_fd_mem2mem2_device *m2m2 = vb2_get_drv_priv(vq);
+ struct mtk_fd_dev_video_device *node =
+ mtk_fd_vbq_to_isp_node(vq);
+ int r;
+
+ WARN_ON(!node->enabled);
+
+ /* Was this the first node with streaming disabled? */
+ if (mtk_fd_all_nodes_streaming(m2m2, node)) {
+ /* Yes, really stop streaming now */
+ r = v4l2_subdev_call(&m2m2->subdev, video, s_stream, 0);
+ if (r)
+ dev_err(m2m2->dev, "failed to stop streaming\n");
+ }
+
+ mtk_fd_return_all_buffers(m2m2, node, VB2_BUF_STATE_ERROR);
+#if KERNEL_VERSION(4, 5, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ media_entity_pipeline_stop(&node->vdev.entity);
+#else
+ media_pipeline_stop(&node->vdev.entity);
+#endif
+}
+
+static int mtk_fd_videoc_querycap(struct file *file, void *fh,
+ struct v4l2_capability *cap)
+{
+ struct mtk_fd_mem2mem2_device *m2m2 = video_drvdata(file);
+ struct mtk_fd_dev_video_device *node = file_to_mtk_fd_node(file);
+ struct mtk_fd_dev *fd_dev = mtk_fd_m2m_to_dev(m2m2);
+ int queue_id =
+ mtk_fd_dev_get_queue_id_of_dev_node(fd_dev, node);
+ struct mtk_fd_ctx_queue *node_ctx = &fd_dev->ctx.queue[queue_id];
+
+ strlcpy(cap->driver, m2m2->name, sizeof(cap->driver));
+ strlcpy(cap->card, m2m2->model, sizeof(cap->card));
+ snprintf(cap->bus_info, sizeof(cap->bus_info),
+ "platform:%s", node->name);
+
+ cap->device_caps =
+ mtk_fd_node_get_v4l2_cap(node_ctx) | V4L2_CAP_STREAMING;
+ cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+
+ return 0;
+}
+
+/* Propagate forward always the format from the CIO2 subdev */
+static int mtk_fd_videoc_g_fmt(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct mtk_fd_dev_video_device *node = file_to_mtk_fd_node(file);
+
+ f->fmt = node->vdev_fmt.fmt;
+
+ return 0;
+}
+
+static int mtk_fd_videoc_try_fmt(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct mtk_fd_mem2mem2_device *m2m2 = video_drvdata(file);
+ struct mtk_fd_dev *fd_dev = mtk_fd_m2m_to_dev(m2m2);
+ struct mtk_fd_ctx *dev_ctx = &fd_dev->ctx;
+ struct mtk_fd_dev_video_device *node = file_to_mtk_fd_node(file);
+ int queue_id =
+ mtk_fd_dev_get_queue_id_of_dev_node(fd_dev, node);
+ int ret = 0;
+
+ ret = mtk_fd_ctx_fmt_set_img(dev_ctx, queue_id, &f->fmt.pix_mp,
+ &node->vdev_fmt.fmt.pix_mp);
+
+ /* Simply set the format to the node context in the initial version */
+ if (ret) {
+ pr_warn("Fmt(%d) not support for queue(%d), load default fmt\n",
+ f->fmt.pix_mp.pixelformat, queue_id);
+
+ ret = mtk_fd_ctx_format_load_default_fmt
+ (&dev_ctx->queue[queue_id], f);
+ }
+
+ if (!ret) {
+ node->vdev_fmt.fmt.pix_mp = f->fmt.pix_mp;
+ dev_ctx->queue[queue_id].fmt.pix_mp = node->vdev_fmt.fmt.pix_mp;
+ }
+
+ return ret;
+}
+
+static int mtk_fd_videoc_s_fmt(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct mtk_fd_mem2mem2_device *m2m2 = video_drvdata(file);
+ struct mtk_fd_dev *fd_dev = mtk_fd_m2m_to_dev(m2m2);
+ struct mtk_fd_ctx *dev_ctx = &fd_dev->ctx;
+ struct mtk_fd_dev_video_device *node = file_to_mtk_fd_node(file);
+ int queue_id = mtk_fd_dev_get_queue_id_of_dev_node(fd_dev, node);
+ int ret = 0;
+
+ ret = mtk_fd_ctx_fmt_set_img(dev_ctx, queue_id, &f->fmt.pix_mp,
+ &node->vdev_fmt.fmt.pix_mp);
+
+ /* Simply set the format to the node context in the initial version */
+ if (!ret)
+ dev_ctx->queue[queue_id].fmt.pix_mp = node->vdev_fmt.fmt.pix_mp;
+ else
+ dev_warn(&fd_dev->pdev->dev, "s_fmt, format not support\n");
+
+ return ret;
+}
+
+static int mtk_fd_meta_enum_format(struct file *file, void *fh,
+ struct v4l2_fmtdesc *f)
+{
+ struct mtk_fd_dev_video_device *node = file_to_mtk_fd_node(file);
+
+ if (f->index > 0 || f->type != node->vbq.type)
+ return -EINVAL;
+
+ f->pixelformat = node->vdev_fmt.fmt.meta.dataformat;
+
+ return 0;
+}
+
+static int mtk_fd_videoc_s_meta_fmt(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct mtk_fd_mem2mem2_device *m2m2 = video_drvdata(file);
+ struct mtk_fd_dev *fd_dev = mtk_fd_m2m_to_dev(m2m2);
+ struct mtk_fd_ctx *dev_ctx = &fd_dev->ctx;
+ struct mtk_fd_dev_video_device *node = file_to_mtk_fd_node(file);
+ int queue_id = mtk_fd_dev_get_queue_id_of_dev_node(fd_dev, node);
+
+ int ret = 0;
+
+ if (f->type != node->vbq.type)
+ return -EINVAL;
+
+ ret = mtk_fd_ctx_format_load_default_fmt(&dev_ctx->queue[queue_id], f);
+
+ if (!ret) {
+ node->vdev_fmt.fmt.meta = f->fmt.meta;
+ dev_ctx->queue[queue_id].fmt.meta = node->vdev_fmt.fmt.meta;
+ } else {
+ dev_warn(&fd_dev->pdev->dev,
+ "s_meta_fm failed, format not support\n");
+ }
+
+ return ret;
+}
+
+static int mtk_fd_videoc_g_meta_fmt(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct mtk_fd_dev_video_device *node = file_to_mtk_fd_node(file);
+
+ if (f->type != node->vbq.type)
+ return -EINVAL;
+
+ f->fmt = node->vdev_fmt.fmt;
+
+ return 0;
+}
+
+int mtk_fd_videoc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct vb2_buffer *vb;
+ struct mtk_fd_dev_buffer *db;
+ int r = 0;
+
+ /* check if vb2 queue is busy */
+ if (vdev->queue->owner && vdev->queue->owner != file->private_data)
+ return -EBUSY;
+
+ /**
+ * Keep the value of sequence in v4l2_buffer
+ * in ctx buf since vb2_qbuf will set it to 0
+ */
+ vb = vdev->queue->bufs[p->index];
+
+ if (vb) {
+ db = mtk_fd_vb2_buf_to_dev_buf(vb);
+ pr_info("qbuf: p:%llx,vb:%llx, db:%llx\n",
+ (unsigned long long)p,
+ (unsigned long long)vb,
+ (unsigned long long)db);
+ db->ctx_buf.user_sequence = p->sequence;
+ }
+ r = vb2_qbuf(vdev->queue, vdev->v4l2_dev->mdev, p);
+ if (r)
+ pr_err("vb2_qbuf failed(err=%d): buf idx(%d)\n", r, p->index);
+ return r;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_videoc_qbuf);
+
+/******************** function pointers ********************/
+
+/* subdev internal operations */
+static const struct v4l2_subdev_internal_ops mtk_fd_subdev_internal_ops = {
+ .open = mtk_fd_subdev_open,
+ .close = mtk_fd_subdev_close,
+};
+
+static const struct v4l2_subdev_core_ops mtk_fd_subdev_core_ops = {
+#if KERNEL_VERSION(4, 5, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
+ .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
+ .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
+ .g_ctrl = v4l2_subdev_g_ctrl,
+ .s_ctrl = v4l2_subdev_s_ctrl,
+ .queryctrl = v4l2_subdev_queryctrl,
+ .querymenu = v4l2_subdev_querymenu,
+#endif
+};
+
+static const struct v4l2_subdev_video_ops mtk_fd_subdev_video_ops = {
+ .s_stream = mtk_fd_subdev_s_stream,
+};
+
+static const struct v4l2_subdev_ops mtk_fd_subdev_ops = {
+ .core = &mtk_fd_subdev_core_ops,
+ .video = &mtk_fd_subdev_video_ops,
+};
+
+static const struct media_entity_operations mtk_fd_media_ops = {
+ .link_setup = mtk_fd_link_setup,
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static const struct vb2_ops mtk_fd_vb2_ops = {
+ .buf_queue = mtk_fd_vb2_buf_queue,
+ .queue_setup = mtk_fd_vb2_queue_setup,
+ .start_streaming = mtk_fd_vb2_start_streaming,
+ .stop_streaming = mtk_fd_vb2_stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+};
+
+static const struct v4l2_file_operations mtk_fd_v4l2_fops = {
+ .unlocked_ioctl = video_ioctl2,
+ .open = v4l2_fh_open,
+ .release = vb2_fop_release,
+ .poll = vb2_fop_poll,
+ .mmap = vb2_fop_mmap,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl32 = v4l2_compat_ioctl32,
+#endif
+};
+
+static const struct v4l2_ioctl_ops mtk_fd_v4l2_ioctl_ops = {
+ .vidioc_querycap = mtk_fd_videoc_querycap,
+
+ .vidioc_g_fmt_vid_cap_mplane = mtk_fd_videoc_g_fmt,
+ .vidioc_s_fmt_vid_cap_mplane = mtk_fd_videoc_s_fmt,
+ .vidioc_try_fmt_vid_cap_mplane = mtk_fd_videoc_try_fmt,
+
+ .vidioc_g_fmt_vid_out_mplane = mtk_fd_videoc_g_fmt,
+ .vidioc_s_fmt_vid_out_mplane = mtk_fd_videoc_s_fmt,
+ .vidioc_try_fmt_vid_out_mplane = mtk_fd_videoc_try_fmt,
+
+ /* buffer queue management */
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = mtk_fd_videoc_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
+};
+
+static const struct v4l2_ioctl_ops mtk_fd_v4l2_meta_ioctl_ops = {
+ .vidioc_querycap = mtk_fd_videoc_querycap,
+
+ .vidioc_enum_fmt_meta_cap = mtk_fd_meta_enum_format,
+ .vidioc_g_fmt_meta_cap = mtk_fd_videoc_g_meta_fmt,
+ .vidioc_s_fmt_meta_cap = mtk_fd_videoc_s_meta_fmt,
+ .vidioc_try_fmt_meta_cap = mtk_fd_videoc_g_meta_fmt,
+
+ .vidioc_enum_fmt_meta_out = mtk_fd_meta_enum_format,
+ .vidioc_g_fmt_meta_out = mtk_fd_videoc_g_meta_fmt,
+ .vidioc_s_fmt_meta_out = mtk_fd_videoc_s_meta_fmt,
+ .vidioc_try_fmt_meta_out = mtk_fd_videoc_g_meta_fmt,
+
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = mtk_fd_videoc_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
+};
+
+static u32 mtk_fd_node_get_v4l2_cap(struct mtk_fd_ctx_queue *node_ctx)
+{
+ u32 cap = 0;
+
+ if (node_ctx->desc.capture)
+ if (node_ctx->desc.image)
+ cap = V4L2_CAP_VIDEO_CAPTURE_MPLANE;
+ else
+ cap = V4L2_CAP_META_CAPTURE;
+ else
+ if (node_ctx->desc.image)
+ cap = V4L2_CAP_VIDEO_OUTPUT_MPLANE;
+ else
+ cap = V4L2_CAP_META_OUTPUT;
+
+ return cap;
+}
+
+static u32 mtk_fd_node_get_format_type(struct mtk_fd_ctx_queue *node_ctx)
+{
+ u32 type;
+
+ if (node_ctx->desc.capture)
+ if (node_ctx->desc.image)
+ type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+ else
+ type = V4L2_BUF_TYPE_META_CAPTURE;
+ else
+ if (node_ctx->desc.image)
+ type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+ else
+ type = V4L2_BUF_TYPE_META_OUTPUT;
+
+ return type;
+}
+
+static const struct v4l2_ioctl_ops *mtk_fd_node_get_ioctl_ops
+ (struct mtk_fd_ctx_queue *node_ctx)
+{
+ const struct v4l2_ioctl_ops *ops = NULL;
+
+ if (node_ctx->desc.image)
+ ops = &mtk_fd_v4l2_ioctl_ops;
+ else
+ ops = &mtk_fd_v4l2_meta_ioctl_ops;
+ return ops;
+}
+
+/**
+ * Config node's video properties
+ * according to the device context requirement
+ */
+static void mtk_fd_node_to_v4l2(struct mtk_fd_dev *fd_dev, u32 node,
+ struct video_device *vdev,
+ struct v4l2_format *f)
+{
+ u32 cap;
+ struct mtk_fd_ctx *device_ctx = &fd_dev->ctx;
+ struct mtk_fd_ctx_queue *node_ctx = &device_ctx->queue[node];
+
+ WARN_ON(node >= mtk_fd_dev_get_total_node(fd_dev));
+ WARN_ON(!node_ctx);
+
+ /* set cap of the node */
+ cap = mtk_fd_node_get_v4l2_cap(node_ctx);
+ f->type = mtk_fd_node_get_format_type(node_ctx);
+ vdev->ioctl_ops = mtk_fd_node_get_ioctl_ops(node_ctx);
+
+ if (mtk_fd_ctx_format_load_default_fmt(&device_ctx->queue[node], f)) {
+ dev_err(&fd_dev->pdev->dev,
+ "Can't load default for node (%d): (%s)",
+ node, device_ctx->queue[node].desc.name);
+ } else {
+ if (device_ctx->queue[node].desc.image) {
+ dev_dbg(&fd_dev->pdev->dev,
+ "Node (%d): (%s), dfmt (f:0x%x w:%d: h:%d s:%d)\n",
+ node, device_ctx->queue[node].desc.name,
+ f->fmt.pix_mp.pixelformat,
+ f->fmt.pix_mp.width,
+ f->fmt.pix_mp.height,
+ f->fmt.pix_mp.plane_fmt[0].sizeimage);
+ node_ctx->fmt.pix_mp = f->fmt.pix_mp;
+ } else {
+ dev_info(&fd_dev->pdev->dev,
+ "Node (%d): (%s), dfmt (f:0x%x s:%u)\n",
+ node, device_ctx->queue[node].desc.name,
+ f->fmt.meta.dataformat,
+ f->fmt.meta.buffersize);
+ node_ctx->fmt.meta = f->fmt.meta;
+ }
+ }
+
+#if KERNEL_VERSION(4, 7, 0) < MTK_FD_KERNEL_BASE_VERSION
+ /* device_caps was supported after 4.7 */
+ vdev->device_caps = V4L2_CAP_STREAMING | cap;
+#endif
+}
+
+int mtk_fd_media_register(struct device *dev, struct media_device *media_dev,
+ const char *model)
+{
+ int r = 0;
+
+ media_dev->dev = dev;
+ dev_info(dev, "setup media_dev.dev: %llx\n",
+ (unsigned long long)media_dev->dev);
+
+ strlcpy(media_dev->model, model, sizeof(media_dev->model));
+ dev_info(dev, "setup media_dev.model: %s\n",
+ media_dev->model);
+
+ snprintf(media_dev->bus_info, sizeof(media_dev->bus_info),
+ "%s", dev_name(dev));
+ dev_info(dev, "setup media_dev.bus_info: %s\n",
+ media_dev->bus_info);
+
+ media_dev->hw_revision = 0;
+ dev_info(dev, "setup media_dev.hw_revision: %d\n",
+ media_dev->hw_revision);
+
+#if KERNEL_VERSION(4, 5, 0) <= MTK_FD_KERNEL_BASE_VERSION
+ dev_info(dev, "media_device_init: media_dev:%llx\n",
+ (unsigned long long)media_dev);
+ media_device_init(media_dev);
+#endif
+
+ pr_info("Register media device: %s, %llx",
+ media_dev->model,
+ (unsigned long long)media_dev);
+
+ r = media_device_register(media_dev);
+
+ if (r) {
+ dev_err(dev, "failed to register media device (%d)\n", r);
+ goto fail_v4l2_dev;
+ }
+ return 0;
+
+fail_v4l2_dev:
+ media_device_unregister(media_dev);
+#if KERNEL_VERSION(4, 5, 0) <= MTK_FD_KERNEL_BASE_VERSION
+ media_device_cleanup(media_dev);
+#endif
+
+ return r;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_media_register);
+
+int mtk_fd_v4l2_register(struct device *dev,
+ struct media_device *media_dev,
+ struct v4l2_device *v4l2_dev)
+{
+ int r = 0;
+ /* Set up v4l2 device */
+ v4l2_dev->mdev = media_dev;
+ dev_info(dev, "setup v4l2_dev->mdev: %llx",
+ (unsigned long long)v4l2_dev->mdev);
+
+ dev_info(dev, "Register v4l2 device: %llx",
+ (unsigned long long)v4l2_dev);
+
+ r = v4l2_device_register(dev, v4l2_dev);
+
+ if (r) {
+ dev_err(dev, "failed to register V4L2 device (%d)\n", r);
+ goto fail_v4l2_dev;
+ }
+
+ return 0;
+
+fail_v4l2_dev:
+ media_device_unregister(media_dev);
+#if KERNEL_VERSION(4, 5, 0) <= MTK_FD_KERNEL_BASE_VERSION
+ media_device_cleanup(media_dev);
+#endif
+
+ return r;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_v4l2_register);
+
+int mtk_fd_mem2mem2_v4l2_register(struct mtk_fd_dev *dev,
+ struct media_device *media_dev,
+ struct v4l2_device *v4l2_dev)
+{
+ struct mtk_fd_mem2mem2_device *m2m2 = &dev->mem2mem2;
+
+ int i, r;
+
+ /**
+ * If media_dev or v4l2_dev is not set,
+ * use the default one in mtk_fd_dev
+ */
+ if (!media_dev) {
+ m2m2->media_dev = &dev->media_dev;
+ r = mtk_fd_media_register(&dev->pdev->dev, m2m2->media_dev,
+ m2m2->model);
+
+ if (r) {
+ dev_err(m2m2->dev, "failed to register media device (%d)\n", r);
+ goto fail_media_dev;
+ }
+ } else {
+ m2m2->media_dev = media_dev;
+ }
+
+ if (!v4l2_dev) {
+ m2m2->v4l2_dev = &dev->v4l2_dev;
+ r = mtk_fd_v4l2_register(&dev->pdev->dev,
+ m2m2->media_dev,
+ m2m2->v4l2_dev);
+ if (r) {
+ dev_err(m2m2->dev, "failed to register V4L2 device (%d)\n", r);
+ goto fail_v4l2_dev;
+ }
+ } else {
+ m2m2->v4l2_dev = v4l2_dev;
+ }
+
+ /* Initialize miscellaneous variables */
+ m2m2->streaming = false;
+ m2m2->v4l2_file_ops = mtk_fd_v4l2_fops;
+
+ /* Initialize subdev media entity */
+ m2m2->subdev_pads = kcalloc(m2m2->num_nodes, sizeof(*m2m2->subdev_pads),
+ GFP_KERNEL);
+ if (!m2m2->subdev_pads) {
+ r = -ENOMEM;
+ goto fail_subdev_pads;
+ }
+#if KERNEL_VERSION(4, 5, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ r = media_entity_init(&m2m2->subdev.entity, m2m2->num_nodes,
+ m2m2->subdev_pads, 0);
+#else
+ r = media_entity_pads_init(&m2m2->subdev.entity, m2m2->num_nodes,
+ m2m2->subdev_pads);
+#endif
+ if (r) {
+ dev_err(m2m2->dev,
+ "failed initialize subdev media entity (%d)\n", r);
+ goto fail_media_entity;
+ }
+
+ /* Initialize subdev */
+ v4l2_subdev_init(&m2m2->subdev, &mtk_fd_subdev_ops);
+
+ m2m2->subdev.entity.function =
+ MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
+
+ m2m2->subdev.entity.ops = &mtk_fd_media_ops;
+
+ for (i = 0; i < m2m2->num_nodes; i++) {
+ m2m2->subdev_pads[i].flags = m2m2->nodes[i].output ?
+ MEDIA_PAD_FL_SINK : MEDIA_PAD_FL_SOURCE;
+ }
+
+ m2m2->subdev.flags =
+ V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
+ snprintf(m2m2->subdev.name, sizeof(m2m2->subdev.name),
+ "%s", m2m2->name);
+ v4l2_set_subdevdata(&m2m2->subdev, m2m2);
+ m2m2->subdev.internal_ops = &mtk_fd_subdev_internal_ops;
+
+ pr_info("register subdev: %s\n", m2m2->subdev.name);
+ r = v4l2_device_register_subdev(m2m2->v4l2_dev, &m2m2->subdev);
+ if (r) {
+ dev_err(m2m2->dev, "failed initialize subdev (%d)\n", r);
+ goto fail_subdev;
+ }
+ r = v4l2_device_register_subdev_nodes(m2m2->v4l2_dev);
+ if (r) {
+ dev_err(m2m2->dev, "failed to register subdevs (%d)\n", r);
+ goto fail_subdevs;
+ }
+
+ /* Create video nodes and links */
+ for (i = 0; i < m2m2->num_nodes; i++) {
+ struct mtk_fd_dev_video_device *node = &m2m2->nodes[i];
+ struct video_device *vdev = &node->vdev;
+ struct vb2_queue *vbq = &node->vbq;
+ u32 flags;
+
+ /* Initialize miscellaneous variables */
+ mutex_init(&node->lock);
+ INIT_LIST_HEAD(&node->buffers);
+
+ /* Initialize formats to default values */
+ mtk_fd_node_to_v4l2(dev, i, vdev, &node->vdev_fmt);
+
+ /* Initialize media entities */
+#if KERNEL_VERSION(4, 5, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ r = media_entity_init(&vdev->entity, 1, &node->vdev_pad, 0);
+#else
+ r = media_entity_pads_init(&vdev->entity, 1, &node->vdev_pad);
+#endif
+ if (r) {
+ dev_err(m2m2->dev,
+ "failed initialize media entity (%d)\n", r);
+ goto fail_vdev_media_entity;
+ }
+ node->vdev_pad.flags = node->output ?
+ MEDIA_PAD_FL_SOURCE : MEDIA_PAD_FL_SINK;
+ vdev->entity.ops = NULL;
+
+ /* Initialize vbq */
+ vbq->type = node->vdev_fmt.type;
+ vbq->io_modes = VB2_MMAP | VB2_DMABUF;
+ vbq->ops = &mtk_fd_vb2_ops;
+ vbq->mem_ops = m2m2->vb2_mem_ops;
+ m2m2->buf_struct_size = sizeof(struct mtk_fd_dev_buffer);
+ vbq->buf_struct_size = m2m2->buf_struct_size;
+ vbq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ vbq->min_buffers_needed = 0; /* Can streamon w/o buffers */
+ /* Put the process hub sub device in the vb2 private data*/
+ vbq->drv_priv = m2m2;
+ vbq->lock = &node->lock;
+ r = vb2_queue_init(vbq);
+ if (r) {
+ dev_err(m2m2->dev,
+ "failed to initialize video queue (%d)\n", r);
+ goto fail_vdev;
+ }
+
+ /* Initialize vdev */
+ snprintf(vdev->name, sizeof(vdev->name), "%s %s",
+ m2m2->name, node->name);
+ vdev->release = video_device_release_empty;
+ vdev->fops = &m2m2->v4l2_file_ops;
+ vdev->lock = &node->lock;
+ vdev->v4l2_dev = m2m2->v4l2_dev;
+ vdev->queue = &node->vbq;
+ vdev->vfl_dir = node->output ? VFL_DIR_TX : VFL_DIR_RX;
+ video_set_drvdata(vdev, m2m2);
+ pr_info("register vdev: %s\n", vdev->name);
+ r = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
+ if (r) {
+ dev_err(m2m2->dev,
+ "failed to register video device (%d)\n", r);
+ goto fail_vdev;
+ }
+
+ /* Create link between video node and the subdev pad */
+ flags = 0;
+ if (node->enabled)
+ flags |= MEDIA_LNK_FL_ENABLED;
+ if (node->immutable)
+ flags |= MEDIA_LNK_FL_IMMUTABLE;
+ if (node->output) {
+#if KERNEL_VERSION(4, 5, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ r = media_entity_create_link
+#else
+ r = media_create_pad_link
+#endif
+ (&vdev->entity, 0,
+ &m2m2->subdev.entity,
+ i, flags);
+ } else {
+#if KERNEL_VERSION(4, 5, 0) >= MTK_FD_KERNEL_BASE_VERSION
+ r = media_entity_create_link
+#else
+ r = media_create_pad_link
+#endif
+ (&m2m2->subdev.entity,
+ i, &vdev->entity, 0,
+ flags);
+ }
+ if (r)
+ goto fail_link;
+ }
+
+ return 0;
+
+ for (; i >= 0; i--) {
+fail_link:
+ video_unregister_device(&m2m2->nodes[i].vdev);
+fail_vdev:
+ media_entity_cleanup(&m2m2->nodes[i].vdev.entity);
+fail_vdev_media_entity:
+ mutex_destroy(&m2m2->nodes[i].lock);
+ }
+fail_subdevs:
+ v4l2_device_unregister_subdev(&m2m2->subdev);
+fail_subdev:
+ media_entity_cleanup(&m2m2->subdev.entity);
+fail_media_entity:
+ kfree(m2m2->subdev_pads);
+fail_subdev_pads:
+ v4l2_device_unregister(m2m2->v4l2_dev);
+fail_v4l2_dev:
+fail_media_dev:
+ pr_err("fail_v4l2_dev: media_device_unregister and clenaup:%llx",
+ (unsigned long long)m2m2->media_dev);
+ media_device_unregister(m2m2->media_dev);
+#if KERNEL_VERSION(4, 5, 0) <= MTK_FD_KERNEL_BASE_VERSION
+ media_device_cleanup(m2m2->media_dev);
+#endif
+
+ return r;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_mem2mem2_v4l2_register);
+
+int mtk_fd_v4l2_unregister(struct mtk_fd_dev *dev)
+{
+ struct mtk_fd_mem2mem2_device *m2m2 = &dev->mem2mem2;
+ unsigned int i;
+
+ for (i = 0; i < m2m2->num_nodes; i++) {
+ video_unregister_device(&m2m2->nodes[i].vdev);
+ media_entity_cleanup(&m2m2->nodes[i].vdev.entity);
+ mutex_destroy(&m2m2->nodes[i].lock);
+ }
+
+ v4l2_device_unregister_subdev(&m2m2->subdev);
+ media_entity_cleanup(&m2m2->subdev.entity);
+ kfree(m2m2->subdev_pads);
+ v4l2_device_unregister(m2m2->v4l2_dev);
+ media_device_unregister(m2m2->media_dev);
+#if KERNEL_VERSION(4, 5, 0) <= MTK_FD_KERNEL_BASE_VERSION
+ media_device_cleanup(m2m2->media_dev);
+#endif
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_fd_v4l2_unregister);
+
+void mtk_fd_v4l2_buffer_done(struct vb2_buffer *vb,
+ enum vb2_buffer_state state)
+{
+ struct mtk_fd_mem2mem2_buffer *b =
+ container_of(vb, struct mtk_fd_mem2mem2_buffer, vbb.vb2_buf);
+
+ list_del(&b->list);
+ vb2_buffer_done(&b->vbb.vb2_buf, state);
+}
+EXPORT_SYMBOL_GPL(mtk_fd_v4l2_buffer_done);
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2.c b/drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2.c
new file mode 100644
index 0000000..bd447b7
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2.c
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Frederic Chen <frederic.chen@xxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include "mtk_fd.h"
+#include "mtk_fd-ctx.h"
+#include "mtk_fd-v4l2.h"
+
+static struct mtk_fd_ctx_format fd_param_fmts[] = {
+ {
+ .fmt.meta = {
+ .dataformat = V4L2_META_FMT_MTISP_PARAMS,
+ .max_buffer_size = 1024 * 30,
+ },
+ },
+};
+
+static struct mtk_fd_ctx_format in_fmts[] = {
+ {
+ .fmt.img = {
+ .pixelformat = V4L2_PIX_FMT_VYUY,
+ .depth = { 16 },
+ .row_depth = { 16 },
+ .num_planes = 1,
+ },
+ },
+ {
+ .fmt.img = {
+ .pixelformat = V4L2_PIX_FMT_YUYV,
+ .depth = { 16 },
+ .row_depth = { 16 },
+ .num_planes = 1,
+ },
+ },
+ {
+ .fmt.img = {
+ .pixelformat = V4L2_PIX_FMT_YVYU,
+ .depth = { 16 },
+ .row_depth = { 16 },
+ .num_planes = 1,
+ },
+ },
+ {
+ .fmt.img = {
+ .pixelformat = V4L2_PIX_FMT_UYVY,
+ .depth = { 16 },
+ .row_depth = { 16 },
+ .num_planes = 1,
+ },
+ },
+};
+
+static struct mtk_fd_ctx_queue_desc
+output_queues[MTK_FD_CTX_FD_TOTAL_OUTPUT] = {
+ {
+ .id = MTK_FD_CTX_FD_YUV_IN,
+ .name = "FDInput",
+ .capture = 0,
+ .image = 1,
+ .fmts = in_fmts,
+ .num_fmts = ARRAY_SIZE(in_fmts),
+ .default_fmt_idx = 1,
+ },
+ {
+ .id = MTK_FD_CTX_FD_CONFIG_IN,
+ .name = "FDConfig",
+ .capture = 0,
+ .image = 0,
+ .fmts = fd_param_fmts,
+ .num_fmts = 1,
+ .default_fmt_idx = 0,
+ },
+};
+
+static struct mtk_fd_ctx_queue_desc
+capture_queues[MTK_FD_CTX_FD_TOTAL_CAPTURE] = {
+ {
+ .id = MTK_FD_CTX_FD_OUT,
+ .name = "FDOutput",
+ .capture = 1,
+ .image = 0,
+ .fmts = fd_param_fmts,
+ .num_fmts = 1,
+ .default_fmt_idx = 0,
+ },
+};
+
+static struct mtk_fd_ctx_queues_setting queues_setting = {
+ .master = MTK_FD_CTX_FD_OUT,
+ .output_queue_descs = output_queues,
+ .total_output_queues = MTK_FD_CTX_FD_TOTAL_OUTPUT,
+ .capture_queue_descs = capture_queues,
+ .total_capture_queues = MTK_FD_CTX_FD_TOTAL_CAPTURE,
+};
+
+int mtk_fd_ctx_fd_init(struct mtk_fd_ctx *ctx)
+{
+ /* Initialize main data structure */
+ return mtk_fd_ctx_core_queue_setup(ctx, &queues_setting);
+}
+EXPORT_SYMBOL_GPL(mtk_fd_ctx_fd_init);
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2.h b/drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2.h
new file mode 100644
index 0000000..0702abc
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd-v4l2.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Frederic Chen <frederic.chen@xxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MTK_FD_V4L2__
+#define __MTK_FD_V4L2__
+
+#include <linux/types.h>
+#include "mtk_fd-ctx.h"
+
+#define MTK_FD_DEV_NAME "MTK-FD-V4L2"
+
+/* Input: YUV image */
+#define MTK_FD_CTX_FD_YUV_IN 0
+/* Input: FD Configuration */
+#define MTK_FD_CTX_FD_CONFIG_IN 1
+#define MTK_FD_CTX_FD_TOTAL_OUTPUT 2
+
+/* OUT: FD output devices*/
+#define MTK_FD_CTX_FD_OUT 2
+#define MTK_FD_CTX_FD_TOTAL_CAPTURE 1
+
+int mtk_fd_ctx_fd_init(struct mtk_fd_ctx *ctx);
+
+#endif /*__MTK_FD_V4L2__*/
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd.c b/drivers/media/platform/mtk-isp/fd/mtk_fd.c
new file mode 100644
index 0000000..7e2fd00
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd.c
@@ -0,0 +1,730 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015 MediaTek Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/kdev_t.h>
+
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/mm_types.h>
+#include <linux/mm.h>
+#include <linux/jiffies.h>
+#include <linux/sched.h>
+#include <linux/uaccess.h>
+#include <asm/page.h>
+#include <linux/vmalloc.h>
+#include <linux/interrupt.h>
+#include <linux/wait.h>
+
+#include <linux/of_platform.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+
+#include "mtk_fd.h"
+#include "mtk_fd-core.h"
+
+#include "mtk_vpu.h"
+
+#include <linux/pm_runtime.h>
+#include <linux/clk.h>
+
+#ifdef CONFIG_PM_WAKELOCKS
+#include <linux/pm_wakeup.h>
+#else
+#include <linux/wakelock.h>
+#endif
+
+#define FD_DRVNAME "mtk-fd"
+
+static const struct of_device_id mtk_fd_of_ids[] = {
+ /* Remider: Add this device node manually in .dtsi */
+ { .compatible = "mediatek,fd", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, mtk_fd_of_ids);
+
+static void mtk_fd_prepare_enable_ccf_clock(struct mtk_fd_drv_dev *fd_hw_dev)
+{
+ int ret;
+
+ pm_runtime_get_sync(fd_hw_dev->larb_dev);
+ ret = clk_prepare_enable(fd_hw_dev->fd_clk);
+ if (ret)
+ dev_err(&fd_hw_dev->pdev->dev,
+ "cannot prepare and enable CG_IMGSYS_FD clock\n");
+}
+
+static void mtk_fd_disable_unprepare_ccf_clock(struct mtk_fd_drv_dev *fd_hw_dev)
+{
+ clk_disable_unprepare(fd_hw_dev->fd_clk);
+}
+
+static int mtk_fd_clk_ctrl(struct mtk_fd_drv_dev *fd_hw_dev, int en)
+{
+ if (en)
+ mtk_fd_prepare_enable_ccf_clock(fd_hw_dev);
+ else
+ mtk_fd_disable_unprepare_ccf_clock(fd_hw_dev);
+
+ dev_dbg(&fd_hw_dev->pdev->dev, "clock en: %d\n", en);
+
+ return 0;
+}
+
+static int mtk_fd_wait_irq(struct mtk_fd_drv_dev *fd_hw_dev)
+{
+ int timeout;
+
+ timeout = wait_event_interruptible_timeout
+ (fd_hw_dev->wq,
+ (fd_hw_dev->fd_irq_result & FD_IRQ_MASK),
+ mtk_fd_us_to_jiffies(1 * 1000000));
+
+ if (timeout == 0) {
+ dev_err(&fd_hw_dev->pdev->dev,
+ "%s timeout, %d\n",
+ __func__, fd_hw_dev->fd_irq_result);
+ return -EAGAIN;
+ }
+
+ dev_dbg(&fd_hw_dev->pdev->dev, "irq_res: 0x%8x\n",
+ fd_hw_dev->fd_irq_result);
+
+ if (timeout != 0 && !(fd_hw_dev->fd_irq_result & FD_IRQ_MASK)) {
+ dev_err(&fd_hw_dev->pdev->dev,
+ "%s interrupted by system signal, return value(%d)\n",
+ __func__, timeout);
+ return -ERESTARTSYS;
+ }
+
+ if (!(fd_hw_dev->fd_irq_result & FD_IRQ_MASK)) {
+ dev_err(&fd_hw_dev->pdev->dev,
+ "%s Not FD, %d\n",
+ __func__, fd_hw_dev->fd_irq_result);
+ return -1;
+ }
+
+ fd_hw_dev->fd_irq_result = 0;
+
+ return 0;
+}
+
+static int mtk_fd_send_ipi_init(struct platform_device *pdev,
+ struct fd_buffer *scp_mem)
+{
+ struct ipi_message fd_init_msg;
+
+ fd_init_msg.cmd_id = FD_CMD_INIT;
+ fd_init_msg.fd_manager = *scp_mem;
+
+ vpu_ipi_send(pdev, IPI_FD_CMD, &fd_init_msg, sizeof(fd_init_msg));
+
+ return 0;
+}
+
+static int mtk_fd_send_ipi_cmd(struct platform_device *pdev,
+ struct v4l2_fd_param *fd_param)
+{
+ struct ipi_message fd_ipi_msg;
+
+ fd_ipi_msg.cmd_id = FD_CMD_ENQ;
+ fd_ipi_msg.fd_param = *fd_param;
+
+ vpu_ipi_send_sync_async(pdev, IPI_FD_CMD, &fd_ipi_msg,
+ sizeof(fd_ipi_msg), 0);
+ return 0;
+}
+
+static irqreturn_t mtk_fd_irq(int irq, void *dev_addr)
+{
+ struct mtk_fd_drv_dev *fd_hw_dev;
+
+ fd_hw_dev = (struct mtk_fd_drv_dev *)dev_addr;
+ fd_hw_dev->fd_irq_result = FD_RD32(fd_hw_dev->fd_base + FD_INT);
+ wake_up_interruptible(&fd_hw_dev->wq);
+
+ return IRQ_HANDLED;
+}
+
+static int mtk_fd_do_callback(struct mtk_fd_drv_dev *fd_hw_dev,
+ unsigned int frame_state)
+{
+ struct mtk_fd_ctx_finish_param fparam;
+ struct mtk_isp_fd_drv_data *drv_data;
+ struct device *dev;
+ int ret = 0;
+
+ drv_data = mtk_fd_hw_dev_to_drv(fd_hw_dev);
+ dev = &drv_data->fd_hw_dev.pdev->dev;
+
+ fparam.state = frame_state;
+ fparam.frame_id = fd_hw_dev->fd_ctx.frame_id;
+ dev_dbg(dev, "frame_id(%d)\n", fparam.frame_id);
+
+ ret = mtk_fd_ctx_core_job_finish(&drv_data->fd_dev.ctx, &fparam);
+ if (ret)
+ dev_err(dev, "frame_id(%d), finish op failed: %d\n",
+ fparam.frame_id, ret);
+ else
+ fd_hw_dev->state = FD_CBD;
+
+ return ret;
+}
+
+static int mtk_fd_dequeue(struct mtk_fd_drv_dev *fd_hw_dev,
+ struct v4l2_fd_param *fd_param)
+{
+ struct mtk_isp_fd_drv_data *drv_data;
+ struct fd_user_output *fd_output;
+ u32 num = 0, i = 0;
+
+ dev_dbg(&fd_hw_dev->pdev->dev, "-E. %s.\n", __func__);
+
+ if ((uint64_t)fd_hw_dev->fd_base < VA_OFFSET) {
+ dev_info(&fd_hw_dev->pdev->dev,
+ "-X. %s. fd_base_error: %p\n",
+ __func__, fd_hw_dev->fd_base);
+ return -1;
+ }
+
+ num = FD_RD32(fd_hw_dev->fd_base + FD_RESULT);
+ FD_WR32(0x0, fd_hw_dev->fd_base + FD_INT_EN);
+ fd_output = (struct fd_user_output *)fd_param->fd_user_result.va;
+ fd_output->face_number = num;
+
+ drv_data = mtk_fd_hw_dev_to_drv(fd_hw_dev);
+ if ((uint64_t)drv_data < VA_OFFSET) {
+ dev_dbg(&fd_hw_dev->pdev->dev,
+ "-X. %s. fd_base_error\n", __func__);
+ return -1;
+ }
+ mtk_fd_do_callback(fd_hw_dev, MTK_FD_CTX_FRAME_DATA_DONE);
+
+ for (i = 0; i < num; i++) {
+ dev_dbg(&fd_hw_dev->pdev->dev,
+ "id:%d, typ:%d, x0:%d, y0:%d, x1:%d, y1:%d, fcv:0x%x\n",
+ fd_output->face[i].face_idx,
+ fd_output->face[i].type,
+ fd_output->face[i].x0,
+ fd_output->face[i].y0,
+ fd_output->face[i].x1,
+ fd_output->face[i].y1,
+ fd_output->face[i].fcv);
+ }
+ dev_dbg(&fd_hw_dev->pdev->dev, "-X. %s.\n", __func__);
+ return 0;
+}
+
+static int mtk_fd_manager_buf_init(struct mtk_fd_drv_dev *fd_hw_dev)
+{
+ struct fd_manager_ctx *manager_ctx;
+
+ manager_ctx = (struct fd_manager_ctx *)fd_hw_dev->fd_ctx.scp_mem.va;
+ manager_ctx->rs_result = fd_hw_dev->fd_ctx.rs_result;
+
+ return 0;
+}
+
+static int mtk_fd_alloc_rs_buf(struct mtk_fd_drv_dev *fd_hw_dev)
+{
+ u64 va = 0;
+ dma_addr_t dma_handle = 0;
+ u32 size = RS_BUF_SIZE_MAX;
+
+ va = (uint64_t)dma_alloc_coherent(&fd_hw_dev->pdev->dev, size,
+ &dma_handle, GFP_KERNEL);
+
+ dev_dbg(&fd_hw_dev->pdev->dev, "rsbuffer size: %u\n", size);
+ dev_dbg(&fd_hw_dev->pdev->dev, "va = 0x%llx, iova = 0x%x\n", va,
+ dma_handle);
+
+ if (va == 0) {
+ dev_err(&fd_hw_dev->pdev->dev, "dma_alloc null va!\n");
+ return -1;
+ }
+
+ memset((uint8_t *)va, 0, size);
+
+ fd_hw_dev->fd_ctx.rs_result.va = va;
+ fd_hw_dev->fd_ctx.rs_result.iova = dma_handle;
+
+ return 0;
+}
+
+static int mtk_fd_get_reserve_mem(struct mtk_fd_drv_dev *fd_hw_dev)
+{
+ phys_addr_t scp_mem_pa;
+ u64 scp_mem_va;
+ u32 scp_mem_iova;
+ u32 size = 0, size_align = 0;
+ struct sg_table *sgt;
+ int n_pages = 0, i = 0, ret = 0;
+ struct page **pages = NULL;
+ struct mtk_fd_drv_ctx *fd_ctx;
+ struct platform_device *pdev = fd_hw_dev->pdev;
+
+ fd_ctx = &fd_hw_dev->fd_ctx;
+
+ scp_mem_iova = 0;
+ scp_mem_va = vpu_get_reserve_mem_virt(FD_MEM_ID);
+ scp_mem_pa = vpu_get_reserve_mem_phys(FD_MEM_ID);
+ size = (u32)vpu_get_reserve_mem_size(FD_MEM_ID);
+
+ dev_dbg(&pdev->dev, "fd_scp_mem va: 0x%llx, pa: 0x%llx, sz:0x%x\n",
+ scp_mem_va, (u64)scp_mem_pa, size);
+
+ if (scp_mem_va != 0 && size > 0)
+ memset((void *)scp_mem_va, 0, size);
+
+ /* get iova */
+ sgt = &fd_ctx->sgtable;
+ sg_alloc_table(sgt, 1, GFP_KERNEL);
+
+ size_align = round_up(size, PAGE_SIZE);
+ n_pages = size_align >> PAGE_SHIFT;
+
+ pages = kmalloc_array(n_pages, sizeof(struct page *), GFP_KERNEL);
+
+ for (i = 0; i < n_pages; i++)
+ pages[i] = phys_to_page(scp_mem_pa + i * PAGE_SIZE);
+ ret = sg_alloc_table_from_pages(sgt, pages, n_pages,
+ 0, size_align, GFP_KERNEL);
+
+ if (ret) {
+ dev_err(&pdev->dev, "failed to get allocate sg table\n");
+ kfree(pages);
+ return ret;
+ }
+
+ dma_map_sg_attrs(&pdev->dev, sgt->sgl, sgt->nents,
+ DMA_BIDIRECTIONAL, DMA_ATTR_SKIP_CPU_SYNC);
+ scp_mem_iova = sg_dma_address(sgt->sgl);
+ kfree(pages);
+
+ dev_dbg(&fd_hw_dev->pdev->dev, "scpmem size:%u,0x%X\n", size, size);
+ dev_dbg(&fd_hw_dev->pdev->dev, "pa:0x%08X\n", (u32)scp_mem_pa);
+ dev_dbg(&fd_hw_dev->pdev->dev, "va:0x%16llX\n", (u64)scp_mem_va);
+ dev_dbg(&fd_hw_dev->pdev->dev, "iova:0x%08X\n", (u32)scp_mem_iova);
+
+ fd_ctx->scp_mem.pa = scp_mem_pa;
+ fd_ctx->scp_mem.va = scp_mem_va;
+ fd_ctx->scp_mem.iova = scp_mem_iova;
+
+ return 0;
+}
+
+static int mtk_fd_load_vpu(struct mtk_fd_drv_dev *fd_hw_dev)
+{
+ struct mtk_fd_drv_ctx *fd_ctx;
+ int ret = 0;
+
+ fd_ctx = &fd_hw_dev->fd_ctx;
+
+ /* init vpu */
+ fd_ctx->vpu_pdev = vpu_get_plat_device(fd_hw_dev->pdev);
+
+ if (!fd_ctx->vpu_pdev) {
+ dev_err(&fd_hw_dev->pdev->dev,
+ "Failed to get VPU device\n");
+ return -EINVAL;
+ }
+
+ ret = vpu_load_firmware(fd_ctx->vpu_pdev);
+ if (ret < 0) {
+ /**
+ * Return 0 if downloading firmware successfully,
+ * otherwise it is failed
+ */
+ dev_err(&fd_hw_dev->pdev->dev,
+ "vpu_load_firmware failed!");
+ return -EINVAL;
+ }
+ return ret;
+}
+
+static int mtk_fd_open_context(struct mtk_fd_drv_dev *fd_hw_dev)
+{
+ struct mtk_fd_drv_ctx *fd_ctx;
+
+ fd_ctx = &fd_hw_dev->fd_ctx;
+
+ mtk_fd_load_vpu(fd_hw_dev);
+
+ mtk_fd_get_reserve_mem(fd_hw_dev);
+ mtk_fd_alloc_rs_buf(fd_hw_dev);
+ mtk_fd_manager_buf_init(fd_hw_dev);
+
+ mtk_fd_send_ipi_init(fd_ctx->vpu_pdev, &fd_ctx->scp_mem);
+ return 0;
+}
+
+static int mtk_fd_release_context(struct mtk_fd_drv_dev *fd_hw_dev)
+{
+ struct mtk_fd_drv_ctx *fd_ctx;
+
+ fd_ctx = &fd_hw_dev->fd_ctx;
+
+ atomic_set(&fd_ctx->fd_user_cnt, 0);
+ atomic_set(&fd_ctx->fd_stream_cnt, 0);
+ atomic_set(&fd_ctx->fd_enque_cnt, 0);
+ sg_free_table(&fd_ctx->sgtable);
+
+ return 0;
+}
+
+int mtk_fd_open(struct platform_device *pdev)
+{
+ int ret = 0;
+ s32 usercount;
+ struct mtk_fd_drv_dev *fd_hw_dev;
+ struct mtk_isp_fd_drv_data *fd_drv;
+ struct mtk_fd_drv_ctx *fd_ctx;
+
+ dev_dbg(&pdev->dev, "- E. %s.\n", __func__);
+
+ if (!pdev) {
+ dev_err(&fd_hw_dev->pdev->dev, "platform device is NULL\n");
+ return -EINVAL;
+ }
+
+ fd_drv = dev_get_drvdata(&pdev->dev);
+ fd_hw_dev = &fd_drv->fd_hw_dev;
+ fd_ctx = &fd_hw_dev->fd_ctx;
+ dev_dbg(&fd_hw_dev->pdev->dev, "open fd_hw_dev = 0x%p\n", fd_hw_dev);
+ dev_dbg(&fd_hw_dev->pdev->dev, "open fd_drv = 0x%p\n", fd_drv);
+
+ usercount = atomic_inc_return(&fd_hw_dev->fd_ctx.fd_user_cnt);
+
+ if (usercount == 1) {
+ /* Enable clock */
+ pm_runtime_get_sync(&fd_hw_dev->pdev->dev);
+
+ mtk_fd_open_context(fd_hw_dev);
+ fd_hw_dev->state = FD_INI;
+ fd_hw_dev->streaming = STREAM_OFF;
+ }
+
+ dev_dbg(&fd_hw_dev->pdev->dev, "usercount = %d",
+ atomic_read(&fd_ctx->fd_user_cnt));
+
+ dev_dbg(&fd_hw_dev->pdev->dev, "X. %s\n", __func__);
+
+ return ret;
+}
+EXPORT_SYMBOL(mtk_fd_open);
+
+int mtk_fd_streamon(struct platform_device *pdev, u16 id)
+{
+ int ret = 0;
+ struct mtk_fd_drv_dev *fd_hw_dev;
+ struct mtk_isp_fd_drv_data *fd_drv;
+
+ fd_drv = dev_get_drvdata(&pdev->dev);
+ fd_hw_dev = &fd_drv->fd_hw_dev;
+
+ dev_dbg(&pdev->dev, "- E. %s\n", __func__);
+ fd_hw_dev->streaming = STREAM_ON;
+ atomic_inc_return(&fd_hw_dev->fd_ctx.fd_stream_cnt);
+
+ dev_dbg(&pdev->dev, "- X. %s\n", __func__);
+ return ret;
+}
+EXPORT_SYMBOL(mtk_fd_streamon);
+
+int mtk_fd_enqueue(struct platform_device *pdev,
+ struct v4l2_fd_param *fd_param)
+{
+ struct mtk_fd_drv_dev *fd_hw_dev;
+ struct mtk_fd_drv_ctx *fd_ctx;
+ struct mtk_isp_fd_drv_data *fd_drv;
+
+ dev_dbg(&pdev->dev, "- E. %s\n", __func__);
+ fd_drv = dev_get_drvdata(&pdev->dev);
+ fd_hw_dev = &fd_drv->fd_hw_dev;
+ fd_ctx = &fd_hw_dev->fd_ctx;
+
+ fd_ctx->frame_id = fd_param->frame_id;
+
+ if (fd_hw_dev->streaming == STREAM_OFF || fd_hw_dev->state == FD_ENQ) {
+ dev_err(&fd_hw_dev->pdev->dev, "enqueue before stream on!\n");
+ return mtk_fd_do_callback(fd_hw_dev,
+ MTK_FD_CTX_FRAME_DATA_ERROR);
+ }
+
+ fd_hw_dev->state = FD_ENQ;
+ atomic_inc_return(&fd_ctx->fd_enque_cnt);
+
+ if (mtk_fd_send_ipi_cmd(fd_ctx->vpu_pdev, fd_param))
+ return -2;
+
+ if (mtk_fd_wait_irq(fd_hw_dev))
+ return mtk_fd_do_callback(fd_hw_dev,
+ MTK_FD_CTX_FRAME_DATA_ERROR);
+
+ mtk_fd_dequeue(fd_hw_dev, fd_param);
+
+ dev_dbg(&pdev->dev, "- E. %s\n", __func__);
+ return 0;
+}
+EXPORT_SYMBOL(mtk_fd_enqueue);
+
+int mtk_fd_release(struct platform_device *pdev)
+{
+ int ret = 0;
+ struct mtk_fd_drv_dev *fd_hw_dev;
+ struct mtk_isp_fd_drv_data *fd_drv;
+
+ fd_drv = dev_get_drvdata(&pdev->dev);
+ fd_hw_dev = &fd_drv->fd_hw_dev;
+ dev_dbg(&fd_hw_dev->pdev->dev, "- E. %s\n", __func__);
+
+ if (!pdev) {
+ dev_err(&fd_hw_dev->pdev->dev, "platform device is NULL\n");
+ return -EINVAL;
+ }
+
+ dev_info(&fd_hw_dev->pdev->dev, "release fd_hw_dev: 0x%p\n", fd_hw_dev);
+
+ if (atomic_dec_and_test(&fd_hw_dev->fd_ctx.fd_user_cnt)) {
+ if (fd_hw_dev->state == FD_ENQ)
+ mtk_fd_wait_irq(fd_hw_dev);
+
+ mtk_fd_release_context(fd_hw_dev);
+
+ pm_runtime_put_sync(&fd_hw_dev->pdev->dev);
+ }
+ dev_info(&fd_hw_dev->pdev->dev, "usercount = %d\n",
+ atomic_read(&fd_hw_dev->fd_ctx.fd_user_cnt));
+
+ dev_dbg(&fd_hw_dev->pdev->dev, "- X. %s\n", __func__);
+ return ret;
+}
+EXPORT_SYMBOL(mtk_fd_release);
+
+int mtk_fd_streamoff(struct platform_device *pdev, u16 id)
+{
+ int ret = 0;
+ struct mtk_fd_drv_dev *fd_hw_dev;
+ struct mtk_isp_fd_drv_data *fd_drv;
+
+ fd_drv = dev_get_drvdata(&pdev->dev);
+ fd_hw_dev = &fd_drv->fd_hw_dev;
+
+ dev_dbg(&pdev->dev, "- E. %s\n", __func__);
+
+ if (fd_hw_dev->state == FD_ENQ)
+ mtk_fd_wait_irq(fd_hw_dev);
+
+ fd_hw_dev->streaming = STREAM_OFF;
+ atomic_dec_return(&fd_hw_dev->fd_ctx.fd_stream_cnt);
+
+ dev_dbg(&pdev->dev, "- X. %s\n", __func__);
+ return ret;
+}
+EXPORT_SYMBOL(mtk_fd_streamoff);
+
+static struct mtk_fd_ctx_desc mtk_isp_ctx_desc_fd = {
+ "proc_device_fd", mtk_fd_ctx_fd_init,};
+
+static int mtk_fd_probe(struct platform_device *pdev)
+{
+ struct mtk_isp_fd_drv_data *fd_drv;
+ struct mtk_fd_drv_dev *fd_hw_dev;
+ struct mtk_fd_drv_ctx *fd_ctx;
+ struct device_node *node;
+ struct platform_device *larb_pdev;
+ int irq_num = 0;
+ int ret = 0;
+
+ dev_info(&pdev->dev, "E. %s.\n", __func__);
+
+ fd_drv = devm_kzalloc(&pdev->dev, sizeof(*fd_drv), GFP_KERNEL);
+
+ if (!fd_drv)
+ return -ENOMEM;
+
+ dev_set_drvdata(&pdev->dev, fd_drv);
+ fd_hw_dev = &fd_drv->fd_hw_dev;
+
+ if (!fd_hw_dev) {
+ dev_err(&pdev->dev, "Unable to allocate fd_hw_dev\n");
+ return -ENOMEM;
+ }
+
+ dev_info(&pdev->dev, "open fd_hw_dev = 0x%p\n", fd_hw_dev);
+ dev_info(&pdev->dev, "open fd_drv = 0x%p\n", fd_drv);
+
+ fd_hw_dev->pdev = pdev;
+ fd_ctx = &fd_hw_dev->fd_ctx;
+
+ irq_num = irq_of_parse_and_map(pdev->dev.of_node, FD_IRQ_IDX);
+ ret = request_irq(irq_num, (irq_handler_t)mtk_fd_irq,
+ IRQF_TRIGGER_NONE, FD_DRVNAME, fd_hw_dev);
+ if (ret) {
+ dev_info(&pdev->dev, "%s request_irq fail, irq=%d\n",
+ __func__, irq_num);
+ return ret;
+ }
+ dev_info(&pdev->dev, "irq_num=%d\n", irq_num);
+
+ node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0);
+ if (!node) {
+ dev_err(&pdev->dev, "no mediatek, larb found");
+ return -EINVAL;
+ }
+ larb_pdev = of_find_device_by_node(node);
+ if (!larb_pdev) {
+ dev_err(&pdev->dev, "no mediatek, larb device found");
+ return -EINVAL;
+ }
+ fd_hw_dev->larb_dev = &larb_pdev->dev;
+
+ node = of_find_compatible_node(NULL, NULL, "mediatek,fd");
+ if (!node) {
+ dev_err(&pdev->dev, "find fd node failed!!!\n");
+ return -ENODEV;
+ }
+ fd_hw_dev->fd_base = of_iomap(node, 0);
+ if (!fd_hw_dev->fd_base) {
+ dev_err(&pdev->dev, "unable to map fd node!!!\n");
+ return -ENODEV;
+ }
+ dev_info(&pdev->dev, "fd_hw_dev->fd_base: %lx\n",
+ (unsigned long)fd_hw_dev->fd_base);
+
+ /* CCF: Grab clock pointer (struct clk*) */
+ fd_hw_dev->fd_clk = devm_clk_get(&pdev->dev, "FD_CLK_IMG_FD");
+ if (IS_ERR(fd_hw_dev->fd_clk)) {
+ dev_err(&pdev->dev, "cannot get FD_CLK_IMG_FD clock\n");
+ return PTR_ERR(fd_hw_dev->fd_clk);
+ }
+
+ pm_runtime_enable(&pdev->dev);
+
+ atomic_set(&fd_ctx->fd_user_cnt, 0);
+ atomic_set(&fd_ctx->fd_stream_cnt, 0);
+ atomic_set(&fd_ctx->fd_enque_cnt, 0);
+
+ init_waitqueue_head(&fd_hw_dev->wq);
+
+ fd_hw_dev->fd_irq_result = 0;
+ fd_hw_dev->streaming = STREAM_OFF;
+
+ ret = mtk_fd_dev_core_init(pdev, &fd_drv->fd_dev, &mtk_isp_ctx_desc_fd);
+
+ if (ret)
+ dev_err(&pdev->dev, "v4l2 init failed: %d\n", ret);
+
+ dev_info(&pdev->dev, "X. FD driver probe.\n");
+
+ return 0;
+}
+
+static int mtk_fd_remove(struct platform_device *pdev)
+{
+ int i4IRQ = 0;
+ struct mtk_fd_drv_dev *fd_hw_dev = NULL;
+ struct mtk_isp_fd_drv_data *drv_data = dev_get_drvdata(&pdev->dev);
+
+ dev_info(&fd_hw_dev->pdev->dev, "-E. %s\n", __func__);
+ if (drv_data) {
+ mtk_fd_dev_core_release(pdev, &drv_data->fd_dev);
+ fd_hw_dev = &drv_data->fd_hw_dev;
+ } else {
+ dev_err(&pdev->dev, "Can't find fd driver data\n");
+ return -EINVAL;
+ }
+
+ mtk_fd_clk_ctrl(fd_hw_dev, clock_off);
+ pm_runtime_disable(&pdev->dev);
+
+ i4IRQ = platform_get_irq(pdev, 0);
+ free_irq(i4IRQ, NULL);
+ kfree(fd_hw_dev);
+
+ dev_info(&fd_hw_dev->pdev->dev, "-X. %s\n", __func__);
+ return 0;
+}
+
+static int mtk_fd_suspend(struct device *dev)
+{
+ struct mtk_isp_fd_drv_data *fd_drv;
+ struct platform_device *pdev;
+ struct mtk_fd_drv_dev *fd_hw_dev;
+
+ if (pm_runtime_suspended(dev))
+ return 0;
+
+ fd_drv = dev_get_drvdata(dev);
+ fd_hw_dev = &fd_drv->fd_hw_dev;
+ pdev = fd_hw_dev->pdev;
+
+ dev_info(&pdev->dev, "E.%s\n", __func__);
+
+ if (atomic_read(&fd_hw_dev->fd_ctx.fd_user_cnt) > 0) {
+ mtk_fd_clk_ctrl(fd_hw_dev, clock_off);
+ dev_info(&pdev->dev, "Disable clock\n");
+ }
+
+ dev_info(&pdev->dev, "X.%s\n", __func__);
+ return 0;
+}
+
+static int mtk_fd_resume(struct device *dev)
+{
+ struct mtk_isp_fd_drv_data *fd_drv;
+ struct platform_device *pdev;
+ struct mtk_fd_drv_dev *fd_hw_dev;
+
+ if (pm_runtime_suspended(dev))
+ return 0;
+
+ fd_drv = dev_get_drvdata(dev);
+ fd_hw_dev = &fd_drv->fd_hw_dev;
+ pdev = fd_hw_dev->pdev;
+
+ dev_info(&pdev->dev, "E.%s\n", __func__);
+
+ if (atomic_read(&fd_hw_dev->fd_ctx.fd_user_cnt) > 0) {
+ mtk_fd_clk_ctrl(fd_hw_dev, clock_on);
+ dev_info(&pdev->dev, "Enable clock\n");
+ }
+
+ dev_info(&pdev->dev, "X.%s\n", __func__);
+ return 0;
+}
+
+static const struct dev_pm_ops mtk_fd_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(mtk_fd_suspend, mtk_fd_resume)
+ SET_RUNTIME_PM_OPS(mtk_fd_suspend, mtk_fd_resume, NULL)
+};
+
+static struct platform_driver mtk_fd_driver = {
+ .probe = mtk_fd_probe,
+ .remove = mtk_fd_remove,
+ .driver = {
+ .name = FD_DRVNAME,
+ .of_match_table = mtk_fd_of_ids,
+ .pm = &mtk_fd_pm_ops,
+ }
+};
+module_platform_driver(mtk_fd_driver);
+
+MODULE_DESCRIPTION("Mediatek FD driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/platform/mtk-isp/fd/mtk_fd.h b/drivers/media/platform/mtk-isp/fd/mtk_fd.h
new file mode 100644
index 0000000..6cae440
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/fd/mtk_fd.h
@@ -0,0 +1,127 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Copyright (C) 2015 MediaTek Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MTK_FD_H__
+#define __MTK_FD_H__
+
+#define MTK_FD_MAX_NO (1024)
+#define MAX_FACE_SEL_NUM (MTK_FD_MAX_NO + 2)
+
+/* The max number of face sizes could be detected, for feature scaling */
+#define FACE_SIZE_NUM_MAX (14)
+
+/* FACE_SIZE_NUM_MAX + 1, first scale for input image W/H */
+#define FD_SCALE_NUM (15)
+
+/* Number of Learning data sets */
+#define LEARNDATA_NUM (18)
+
+struct fd_buffer {
+ __u64 va; /* used by APMCU access */
+ __u32 pa; /* used by CM4 access */
+ __u32 iova; /* used by HW access */
+} __packed;
+
+enum fd_img_format {
+ FMT_VYUY = 2,
+ FMT_UYVY,
+ FMT_YVYU,
+ FMT_YUYV,
+};
+
+enum fd_mode {
+ FDMODE,
+ SDMODE,
+ VFB,
+ CFB,
+};
+
+struct fd_face_result {
+ __u64 face_idx:12, type:1, x0:10, y0:10, x1:10, y1:10,
+ fcv:18, rip_dir:4, rop_dir:3, det_size:5;
+};
+
+struct fd_user_output {
+ struct fd_face_result face[MAX_FACE_SEL_NUM];
+ __u16 face_number;
+};
+
+struct v4l2_fd_param {
+ u32 frame_id;
+ u16 src_img_h;
+ u16 src_img_w;
+ struct fd_buffer src_img;
+ struct fd_buffer fd_user_param;
+ struct fd_buffer fd_user_result;
+} __packed;
+
+/**
+ * mtk_fd_enqueue - enqueue to fd driver
+ *
+ * @pdev: FD platform device
+ * @fdvtconfig: frame parameters from V4L2 common Framework
+ *
+ * Enqueue a frame to fd driver.
+ *
+ * Return: Return 0 if successfully, otherwise it is failed.
+ */
+int mtk_fd_enqueue(struct platform_device *pdev,
+ struct v4l2_fd_param *fd_param);
+
+/**
+ * mtk_fd_open -
+ *
+ * @pdev: FD platform device
+ *
+ * Open the FD device driver
+ *
+ * Return: Return 0 if success, otherwise it is failed.
+ */
+int mtk_fd_open(struct platform_device *pdev);
+
+/**
+ * mtk_fd_release -
+ *
+ * @pdev: FD platform device
+ *
+ * Enqueue a frame to FD driver.
+ *
+ * Return: Return 0 if success, otherwise it is failed.
+ */
+int mtk_fd_release(struct platform_device *pdev);
+
+/**
+ * mtk_fd_streamon -
+ *
+ * @pdev: FD platform device
+ * @id: device context id
+ *
+ * Stream on
+ *
+ * Return: Return 0 if success, otherwise it is failed.
+ */
+int mtk_fd_streamon(struct platform_device *pdev, u16 id);
+
+/**
+ * mtk_fd_streamoff -
+ *
+ * @pdev: FD platform device
+ * @id: device context id
+ *
+ * Stream off
+ *
+ * Return: Return 0 if success, otherwise it is failed.
+ */
+int mtk_fd_streamoff(struct platform_device *pdev, u16 id);
+
+#endif/*__MTK_FD_H__*/
--
1.9.1
