1 files changed, 362 insertions, 0 deletions
diff --git a/drivers/media/platform/amphion/vpu.h b/drivers/media/platform/amphion/vpu.h
new file mode 100644
index 000000000000..e56b96a7e5d3
--- /dev/null
+++ b/drivers/media/platform/amphion/vpu.h
@@ -0,0 +1,362 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2020-2021 NXP
+ */
+
+#ifndef _AMPHION_VPU_H
+#define _AMPHION_VPU_H
+
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-mem2mem.h>
+#include <linux/mailbox_client.h>
+#include <linux/mailbox_controller.h>
+#include <linux/kfifo.h>
+
+#define VPU_TIMEOUT		msecs_to_jiffies(1000)
+#define VPU_INST_NULL_ID	(-1L)
+#define VPU_MSG_BUFFER_SIZE	(8192)
+
+enum imx_plat_type {
+	IMX8QXP = 0,
+	IMX8QM  = 1,
+	IMX8DM,
+	IMX8DX,
+	PLAT_TYPE_RESERVED
+};
+
+enum vpu_core_type {
+	VPU_CORE_TYPE_ENC = 0,
+	VPU_CORE_TYPE_DEC = 0x10,
+};
+
+struct vpu_dev;
+struct vpu_resources {
+	enum imx_plat_type plat_type;
+	u32 mreg_base;
+	int (*setup)(struct vpu_dev *vpu);
+	int (*setup_encoder)(struct vpu_dev *vpu);
+	int (*setup_decoder)(struct vpu_dev *vpu);
+	int (*reset)(struct vpu_dev *vpu);
+};
+
+struct vpu_buffer {
+	void *virt;
+	dma_addr_t phys;
+	u32 length;
+	u32 bytesused;
+	struct device *dev;
+};
+
+struct vpu_func {
+	struct video_device *vfd;
+	struct v4l2_m2m_dev *m2m_dev;
+	enum vpu_core_type type;
+	int function;
+};
+
+struct vpu_dev {
+	void __iomem *base;
+	struct platform_device *pdev;
+	struct device *dev;
+	struct mutex lock; /* protect vpu device */
+	const struct vpu_resources *res;
+	struct list_head cores;
+
+	struct v4l2_device v4l2_dev;
+	struct vpu_func encoder;
+	struct vpu_func decoder;
+	struct media_device mdev;
+
+	struct delayed_work watchdog_work;
+	void (*get_vpu)(struct vpu_dev *vpu);
+	void (*put_vpu)(struct vpu_dev *vpu);
+	void (*get_enc)(struct vpu_dev *vpu);
+	void (*put_enc)(struct vpu_dev *vpu);
+	void (*get_dec)(struct vpu_dev *vpu);
+	void (*put_dec)(struct vpu_dev *vpu);
+	atomic_t ref_vpu;
+	atomic_t ref_enc;
+	atomic_t ref_dec;
+
+	struct dentry *debugfs;
+};
+
+struct vpu_format {
+	u32 pixfmt;
+	unsigned int num_planes;
+	u32 type;
+	u32 flags;
+	u32 width;
+	u32 height;
+	u32 sizeimage[VIDEO_MAX_PLANES];
+	u32 bytesperline[VIDEO_MAX_PLANES];
+	u32 field;
+};
+
+struct vpu_core_resources {
+	enum vpu_core_type type;
+	const char *fwname;
+	u32 stride;
+	u32 max_width;
+	u32 min_width;
+	u32 step_width;
+	u32 max_height;
+	u32 min_height;
+	u32 step_height;
+	u32 rpc_size;
+	u32 fwlog_size;
+	u32 act_size;
+};
+
+struct vpu_mbox {
+	char name[20];
+	struct mbox_client cl;
+	struct mbox_chan *ch;
+	bool block;
+};
+
+enum vpu_core_state {
+	VPU_CORE_DEINIT = 0,
+	VPU_CORE_ACTIVE,
+	VPU_CORE_SNAPSHOT,
+	VPU_CORE_HANG
+};
+
+struct vpu_core {
+	void __iomem *base;
+	struct platform_device *pdev;
+	struct device *dev;
+	struct device *parent;
+	struct device *pd;
+	struct device_link *pd_link;
+	struct mutex lock;     /* protect vpu core */
+	struct mutex cmd_lock; /* Lock vpu command */
+	struct list_head list;
+	enum vpu_core_type type;
+	int id;
+	const struct vpu_core_resources *res;
+	unsigned long instance_mask;
+	u32 supported_instance_count;
+	unsigned long hang_mask;
+	u32 request_count;
+	struct list_head instances;
+	enum vpu_core_state state;
+	u32 fw_version;
+
+	struct vpu_buffer fw;
+	struct vpu_buffer rpc;
+	struct vpu_buffer log;
+	struct vpu_buffer act;
+
+	struct vpu_mbox tx_type;
+	struct vpu_mbox tx_data;
+	struct vpu_mbox rx;
+	unsigned long cmd_seq;
+
+	wait_queue_head_t ack_wq;
+	struct completion cmp;
+	struct workqueue_struct *workqueue;
+	struct work_struct msg_work;
+	struct delayed_work msg_delayed_work;
+	struct kfifo msg_fifo;
+	void *msg_buffer;
+	unsigned int msg_buffer_size;
+
+	struct vpu_dev *vpu;
+	void *iface;
+
+	struct dentry *debugfs;
+	struct dentry *debugfs_fwlog;
+};
+
+enum vpu_codec_state {
+	VPU_CODEC_STATE_DEINIT = 1,
+	VPU_CODEC_STATE_CONFIGURED,
+	VPU_CODEC_STATE_START,
+	VPU_CODEC_STATE_STARTED,
+	VPU_CODEC_STATE_ACTIVE,
+	VPU_CODEC_STATE_SEEK,
+	VPU_CODEC_STATE_STOP,
+	VPU_CODEC_STATE_DRAIN,
+	VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE,
+};
+
+struct vpu_frame_info {
+	u32 type;
+	u32 id;
+	u32 sequence;
+	u32 luma;
+	u32 chroma_u;
+	u32 chroma_v;
+	u32 data_offset;
+	u32 flags;
+	u32 skipped;
+	s64 timestamp;
+};
+
+struct vpu_inst;
+struct vpu_inst_ops {
+	int (*ctrl_init)(struct vpu_inst *inst);
+	int (*start)(struct vpu_inst *inst, u32 type);
+	int (*stop)(struct vpu_inst *inst, u32 type);
+	int (*abort)(struct vpu_inst *inst);
+	bool (*check_ready)(struct vpu_inst *inst, unsigned int type);
+	void (*buf_done)(struct vpu_inst *inst, struct vpu_frame_info *frame);
+	void (*event_notify)(struct vpu_inst *inst, u32 event, void *data);
+	void (*release)(struct vpu_inst *inst);
+	void (*cleanup)(struct vpu_inst *inst);
+	void (*mem_request)(struct vpu_inst *inst,
+			    u32 enc_frame_size,
+			    u32 enc_frame_num,
+			    u32 ref_frame_size,
+			    u32 ref_frame_num,
+			    u32 act_frame_size,
+			    u32 act_frame_num);
+	void (*input_done)(struct vpu_inst *inst);
+	void (*stop_done)(struct vpu_inst *inst);
+	int (*process_output)(struct vpu_inst *inst, struct vb2_buffer *vb);
+	int (*process_capture)(struct vpu_inst *inst, struct vb2_buffer *vb);
+	int (*get_one_frame)(struct vpu_inst *inst, void *info);
+	void (*on_queue_empty)(struct vpu_inst *inst, u32 type);
+	int (*get_debug_info)(struct vpu_inst *inst, char *str, u32 size, u32 i);
+	void (*wait_prepare)(struct vpu_inst *inst);
+	void (*wait_finish)(struct vpu_inst *inst);
+};
+
+struct vpu_inst {
+	struct list_head list;
+	struct mutex lock; /* v4l2 and videobuf2 lock */
+	struct vpu_dev *vpu;
+	struct vpu_core *core;
+	struct device *dev;
+	int id;
+
+	struct v4l2_fh fh;
+	struct v4l2_ctrl_handler ctrl_handler;
+	atomic_t ref_count;
+	int (*release)(struct vpu_inst *inst);
+
+	enum vpu_codec_state state;
+	enum vpu_core_type type;
+
+	struct workqueue_struct *workqueue;
+	struct work_struct msg_work;
+	struct kfifo msg_fifo;
+	u8 msg_buffer[VPU_MSG_BUFFER_SIZE];
+
+	struct vpu_buffer stream_buffer;
+	bool use_stream_buffer;
+	struct vpu_buffer act;
+
+	struct list_head cmd_q;
+	void *pending;
+
+	struct vpu_inst_ops *ops;
+	const struct vpu_format *formats;
+	struct vpu_format out_format;
+	struct vpu_format cap_format;
+	u32 min_buffer_cap;
+	u32 min_buffer_out;
+
+	struct v4l2_rect crop;
+	u32 colorspace;
+	u8 ycbcr_enc;
+	u8 quantization;
+	u8 xfer_func;
+	u32 sequence;
+	u32 extra_size;
+
+	u32 flows[16];
+	u32 flow_idx;
+
+	pid_t pid;
+	pid_t tgid;
+	struct dentry *debugfs;
+
+	void *priv;
+};
+
+#define call_vop(inst, op, args...)					\
+	((inst)->ops->op ? (inst)->ops->op(inst, ##args) : 0)		\
+
+#define call_void_vop(inst, op, args...)				\
+	do {								\
+		if ((inst)->ops->op)					\
+			(inst)->ops->op(inst, ##args);				\
+	} while (0)
+
+enum {
+	VPU_BUF_STATE_IDLE = 0,
+	VPU_BUF_STATE_INUSE,
+	VPU_BUF_STATE_DECODED,
+	VPU_BUF_STATE_READY,
+	VPU_BUF_STATE_SKIP,
+	VPU_BUF_STATE_ERROR
+};
+
+struct vpu_vb2_buffer {
+	struct v4l2_m2m_buffer m2m_buf;
+	dma_addr_t luma;
+	dma_addr_t chroma_u;
+	dma_addr_t chroma_v;
+	unsigned int state;
+	u32 tag;
+};
+
+void vpu_writel(struct vpu_dev *vpu, u32 reg, u32 val);
+u32 vpu_readl(struct vpu_dev *vpu, u32 reg);
+
+static inline struct vpu_vb2_buffer *to_vpu_vb2_buffer(struct vb2_v4l2_buffer *vbuf)
+{
+	struct v4l2_m2m_buffer *m2m_buf = container_of(vbuf, struct v4l2_m2m_buffer, vb);
+
+	return container_of(m2m_buf, struct vpu_vb2_buffer, m2m_buf);
+}
+
+static inline const char *vpu_core_type_desc(enum vpu_core_type type)
+{
+	return type == VPU_CORE_TYPE_ENC ? "encoder" : "decoder";
+}
+
+static inline struct vpu_inst *to_inst(struct file *filp)
+{
+	return container_of(filp->private_data, struct vpu_inst, fh);
+}
+
+#define ctrl_to_inst(ctrl)	\
+	container_of((ctrl)->handler, struct vpu_inst, ctrl_handler)
+
+const struct v4l2_ioctl_ops *venc_get_ioctl_ops(void);
+const struct v4l2_file_operations *venc_get_fops(void);
+const struct v4l2_ioctl_ops *vdec_get_ioctl_ops(void);
+const struct v4l2_file_operations *vdec_get_fops(void);
+
+int vpu_add_func(struct vpu_dev *vpu, struct vpu_func *func);
+void vpu_remove_func(struct vpu_func *func);
+
+struct vpu_inst *vpu_inst_get(struct vpu_inst *inst);
+void vpu_inst_put(struct vpu_inst *inst);
+struct vpu_core *vpu_request_core(struct vpu_dev *vpu, enum vpu_core_type type);
+void vpu_release_core(struct vpu_core *core);
+int vpu_inst_register(struct vpu_inst *inst);
+int vpu_inst_unregister(struct vpu_inst *inst);
+const struct vpu_core_resources *vpu_get_resource(struct vpu_inst *inst);
+
+int vpu_inst_create_dbgfs_file(struct vpu_inst *inst);
+int vpu_inst_remove_dbgfs_file(struct vpu_inst *inst);
+int vpu_core_create_dbgfs_file(struct vpu_core *core);
+int vpu_core_remove_dbgfs_file(struct vpu_core *core);
+void vpu_inst_record_flow(struct vpu_inst *inst, u32 flow);
+
+int vpu_core_driver_init(void);
+void vpu_core_driver_exit(void);
+
+extern bool debug;
+#define vpu_trace(dev, fmt, arg...)					\
+	do {								\
+		if (debug)						\
+			dev_info(dev, "%s: " fmt, __func__, ## arg);	\
+	} while (0)
+
+#endif