384 lines
10 KiB
C
384 lines
10 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (c) 2016 MediaTek Inc.
|
|
* Author: PC Chen <pc.chen@mediatek.com>
|
|
* Tiffany Lin <tiffany.lin@mediatek.com>
|
|
*/
|
|
|
|
#ifndef _MTK_VCODEC_DRV_H_
|
|
#define _MTK_VCODEC_DRV_H_
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/videodev2.h>
|
|
#include <media/v4l2-ctrls.h>
|
|
#include <media/v4l2-device.h>
|
|
#include <media/v4l2-ioctl.h>
|
|
#include <media/videobuf2-core.h>
|
|
#include "mtk_vcodec_util.h"
|
|
|
|
#define MTK_VCODEC_DRV_NAME "mtk_vcodec_drv"
|
|
#define MTK_VCODEC_DEC_NAME "mtk-vcodec-dec"
|
|
#define MTK_VCODEC_ENC_NAME "mtk-vcodec-enc"
|
|
#define MTK_PLATFORM_STR "platform:mt8173"
|
|
|
|
#define MTK_VCODEC_MAX_PLANES 3
|
|
#define MTK_V4L2_BENCHMARK 0
|
|
#define WAIT_INTR_TIMEOUT_MS 1000
|
|
|
|
/**
|
|
* enum mtk_hw_reg_idx - MTK hw register base index
|
|
*/
|
|
enum mtk_hw_reg_idx {
|
|
VDEC_SYS,
|
|
VDEC_MISC,
|
|
VDEC_LD,
|
|
VDEC_TOP,
|
|
VDEC_CM,
|
|
VDEC_AD,
|
|
VDEC_AV,
|
|
VDEC_PP,
|
|
VDEC_HWD,
|
|
VDEC_HWQ,
|
|
VDEC_HWB,
|
|
VDEC_HWG,
|
|
NUM_MAX_VDEC_REG_BASE,
|
|
/* h264 encoder */
|
|
VENC_SYS = NUM_MAX_VDEC_REG_BASE,
|
|
/* vp8 encoder */
|
|
VENC_LT_SYS,
|
|
NUM_MAX_VCODEC_REG_BASE
|
|
};
|
|
|
|
/**
|
|
* enum mtk_instance_type - The type of an MTK Vcodec instance.
|
|
*/
|
|
enum mtk_instance_type {
|
|
MTK_INST_DECODER = 0,
|
|
MTK_INST_ENCODER = 1,
|
|
};
|
|
|
|
/**
|
|
* enum mtk_instance_state - The state of an MTK Vcodec instance.
|
|
* @MTK_STATE_FREE - default state when instance is created
|
|
* @MTK_STATE_INIT - vcodec instance is initialized
|
|
* @MTK_STATE_HEADER - vdec had sps/pps header parsed or venc
|
|
* had sps/pps header encoded
|
|
* @MTK_STATE_FLUSH - vdec is flushing. Only used by decoder
|
|
* @MTK_STATE_ABORT - vcodec should be aborted
|
|
*/
|
|
enum mtk_instance_state {
|
|
MTK_STATE_FREE = 0,
|
|
MTK_STATE_INIT = 1,
|
|
MTK_STATE_HEADER = 2,
|
|
MTK_STATE_FLUSH = 3,
|
|
MTK_STATE_ABORT = 4,
|
|
};
|
|
|
|
/**
|
|
* struct mtk_encode_param - General encoding parameters type
|
|
*/
|
|
enum mtk_encode_param {
|
|
MTK_ENCODE_PARAM_NONE = 0,
|
|
MTK_ENCODE_PARAM_BITRATE = (1 << 0),
|
|
MTK_ENCODE_PARAM_FRAMERATE = (1 << 1),
|
|
MTK_ENCODE_PARAM_INTRA_PERIOD = (1 << 2),
|
|
MTK_ENCODE_PARAM_FORCE_INTRA = (1 << 3),
|
|
MTK_ENCODE_PARAM_GOP_SIZE = (1 << 4),
|
|
};
|
|
|
|
enum mtk_fmt_type {
|
|
MTK_FMT_DEC = 0,
|
|
MTK_FMT_ENC = 1,
|
|
MTK_FMT_FRAME = 2,
|
|
};
|
|
|
|
/**
|
|
* struct mtk_video_fmt - Structure used to store information about pixelformats
|
|
*/
|
|
struct mtk_video_fmt {
|
|
u32 fourcc;
|
|
enum mtk_fmt_type type;
|
|
u32 num_planes;
|
|
};
|
|
|
|
/**
|
|
* struct mtk_codec_framesizes - Structure used to store information about
|
|
* framesizes
|
|
*/
|
|
struct mtk_codec_framesizes {
|
|
u32 fourcc;
|
|
struct v4l2_frmsize_stepwise stepwise;
|
|
};
|
|
|
|
/**
|
|
* struct mtk_q_type - Type of queue
|
|
*/
|
|
enum mtk_q_type {
|
|
MTK_Q_DATA_SRC = 0,
|
|
MTK_Q_DATA_DST = 1,
|
|
};
|
|
|
|
/**
|
|
* struct mtk_q_data - Structure used to store information about queue
|
|
*/
|
|
struct mtk_q_data {
|
|
unsigned int visible_width;
|
|
unsigned int visible_height;
|
|
unsigned int coded_width;
|
|
unsigned int coded_height;
|
|
enum v4l2_field field;
|
|
unsigned int bytesperline[MTK_VCODEC_MAX_PLANES];
|
|
unsigned int sizeimage[MTK_VCODEC_MAX_PLANES];
|
|
const struct mtk_video_fmt *fmt;
|
|
};
|
|
|
|
/**
|
|
* struct mtk_enc_params - General encoding parameters
|
|
* @bitrate: target bitrate in bits per second
|
|
* @num_b_frame: number of b frames between p-frame
|
|
* @rc_frame: frame based rate control
|
|
* @rc_mb: macroblock based rate control
|
|
* @seq_hdr_mode: H.264 sequence header is encoded separately or joined
|
|
* with the first frame
|
|
* @intra_period: I frame period
|
|
* @gop_size: group of picture size, it's used as the intra frame period
|
|
* @framerate_num: frame rate numerator. ex: framerate_num=30 and
|
|
* framerate_denom=1 means FPS is 30
|
|
* @framerate_denom: frame rate denominator. ex: framerate_num=30 and
|
|
* framerate_denom=1 means FPS is 30
|
|
* @h264_max_qp: Max value for H.264 quantization parameter
|
|
* @h264_profile: V4L2 defined H.264 profile
|
|
* @h264_level: V4L2 defined H.264 level
|
|
* @force_intra: force/insert intra frame
|
|
*/
|
|
struct mtk_enc_params {
|
|
unsigned int bitrate;
|
|
unsigned int num_b_frame;
|
|
unsigned int rc_frame;
|
|
unsigned int rc_mb;
|
|
unsigned int seq_hdr_mode;
|
|
unsigned int intra_period;
|
|
unsigned int gop_size;
|
|
unsigned int framerate_num;
|
|
unsigned int framerate_denom;
|
|
unsigned int h264_max_qp;
|
|
unsigned int h264_profile;
|
|
unsigned int h264_level;
|
|
unsigned int force_intra;
|
|
};
|
|
|
|
/**
|
|
* struct mtk_vcodec_clk_info - Structure used to store clock name
|
|
*/
|
|
struct mtk_vcodec_clk_info {
|
|
const char *clk_name;
|
|
struct clk *vcodec_clk;
|
|
};
|
|
|
|
/**
|
|
* struct mtk_vcodec_clk - Structure used to store vcodec clock information
|
|
*/
|
|
struct mtk_vcodec_clk {
|
|
struct mtk_vcodec_clk_info *clk_info;
|
|
int clk_num;
|
|
};
|
|
|
|
/**
|
|
* struct mtk_vcodec_pm - Power management data structure
|
|
*/
|
|
struct mtk_vcodec_pm {
|
|
struct mtk_vcodec_clk vdec_clk;
|
|
struct device *larbvdec;
|
|
|
|
struct mtk_vcodec_clk venc_clk;
|
|
struct device *larbvenc;
|
|
struct device *larbvenclt;
|
|
struct device *dev;
|
|
struct mtk_vcodec_dev *mtkdev;
|
|
};
|
|
|
|
/**
|
|
* struct vdec_pic_info - picture size information
|
|
* @pic_w: picture width
|
|
* @pic_h: picture height
|
|
* @buf_w: picture buffer width (64 aligned up from pic_w)
|
|
* @buf_h: picture buffer heiht (64 aligned up from pic_h)
|
|
* @fb_sz: bitstream size of each plane
|
|
* E.g. suppose picture size is 176x144,
|
|
* buffer size will be aligned to 176x160.
|
|
* @cap_fourcc: fourcc number(may changed when resolution change)
|
|
* @reserved: align struct to 64-bit in order to adjust 32-bit and 64-bit os.
|
|
*/
|
|
struct vdec_pic_info {
|
|
unsigned int pic_w;
|
|
unsigned int pic_h;
|
|
unsigned int buf_w;
|
|
unsigned int buf_h;
|
|
unsigned int fb_sz[VIDEO_MAX_PLANES];
|
|
unsigned int cap_fourcc;
|
|
unsigned int reserved;
|
|
};
|
|
|
|
/**
|
|
* struct mtk_vcodec_ctx - Context (instance) private data.
|
|
*
|
|
* @type: type of the instance - decoder or encoder
|
|
* @dev: pointer to the mtk_vcodec_dev of the device
|
|
* @list: link to ctx_list of mtk_vcodec_dev
|
|
* @fh: struct v4l2_fh
|
|
* @m2m_ctx: pointer to the v4l2_m2m_ctx of the context
|
|
* @q_data: store information of input and output queue
|
|
* of the context
|
|
* @id: index of the context that this structure describes
|
|
* @state: state of the context
|
|
* @param_change: indicate encode parameter type
|
|
* @enc_params: encoding parameters
|
|
* @dec_if: hooked decoder driver interface
|
|
* @enc_if: hoooked encoder driver interface
|
|
* @drv_handle: driver handle for specific decode/encode instance
|
|
*
|
|
* @picinfo: store picture info after header parsing
|
|
* @dpb_size: store dpb count after header parsing
|
|
* @int_cond: variable used by the waitqueue
|
|
* @int_type: type of the last interrupt
|
|
* @queue: waitqueue that can be used to wait for this context to
|
|
* finish
|
|
* @irq_status: irq status
|
|
*
|
|
* @ctrl_hdl: handler for v4l2 framework
|
|
* @decode_work: worker for the decoding
|
|
* @encode_work: worker for the encoding
|
|
* @last_decoded_picinfo: pic information get from latest decode
|
|
* @empty_flush_buf: a fake size-0 capture buffer that indicates flush
|
|
*
|
|
* @colorspace: enum v4l2_colorspace; supplemental to pixelformat
|
|
* @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
|
|
* @quantization: enum v4l2_quantization, colorspace quantization
|
|
* @xfer_func: enum v4l2_xfer_func, colorspace transfer function
|
|
* @lock: protect variables accessed by V4L2 threads and worker thread such as
|
|
* mtk_video_dec_buf.
|
|
*/
|
|
struct mtk_vcodec_ctx {
|
|
enum mtk_instance_type type;
|
|
struct mtk_vcodec_dev *dev;
|
|
struct list_head list;
|
|
|
|
struct v4l2_fh fh;
|
|
struct v4l2_m2m_ctx *m2m_ctx;
|
|
struct mtk_q_data q_data[2];
|
|
int id;
|
|
enum mtk_instance_state state;
|
|
enum mtk_encode_param param_change;
|
|
struct mtk_enc_params enc_params;
|
|
|
|
const struct vdec_common_if *dec_if;
|
|
const struct venc_common_if *enc_if;
|
|
void *drv_handle;
|
|
|
|
struct vdec_pic_info picinfo;
|
|
int dpb_size;
|
|
|
|
int int_cond;
|
|
int int_type;
|
|
wait_queue_head_t queue;
|
|
unsigned int irq_status;
|
|
|
|
struct v4l2_ctrl_handler ctrl_hdl;
|
|
struct work_struct decode_work;
|
|
struct work_struct encode_work;
|
|
struct vdec_pic_info last_decoded_picinfo;
|
|
struct mtk_video_dec_buf *empty_flush_buf;
|
|
|
|
enum v4l2_colorspace colorspace;
|
|
enum v4l2_ycbcr_encoding ycbcr_enc;
|
|
enum v4l2_quantization quantization;
|
|
enum v4l2_xfer_func xfer_func;
|
|
|
|
int decoded_frame_cnt;
|
|
struct mutex lock;
|
|
|
|
};
|
|
|
|
/**
|
|
* struct mtk_vcodec_dev - driver data
|
|
* @v4l2_dev: V4L2 device to register video devices for.
|
|
* @vfd_dec: Video device for decoder
|
|
* @vfd_enc: Video device for encoder.
|
|
*
|
|
* @m2m_dev_dec: m2m device for decoder
|
|
* @m2m_dev_enc: m2m device for encoder.
|
|
* @plat_dev: platform device
|
|
* @vpu_plat_dev: mtk vpu platform device
|
|
* @ctx_list: list of struct mtk_vcodec_ctx
|
|
* @irqlock: protect data access by irq handler and work thread
|
|
* @curr_ctx: The context that is waiting for codec hardware
|
|
*
|
|
* @reg_base: Mapped address of MTK Vcodec registers.
|
|
*
|
|
* @id_counter: used to identify current opened instance
|
|
*
|
|
* @encode_workqueue: encode work queue
|
|
*
|
|
* @int_cond: used to identify interrupt condition happen
|
|
* @int_type: used to identify what kind of interrupt condition happen
|
|
* @dev_mutex: video_device lock
|
|
* @queue: waitqueue for waiting for completion of device commands
|
|
*
|
|
* @dec_irq: decoder irq resource
|
|
* @enc_irq: h264 encoder irq resource
|
|
* @enc_lt_irq: vp8 encoder irq resource
|
|
*
|
|
* @dec_mutex: decoder hardware lock
|
|
* @enc_mutex: encoder hardware lock.
|
|
*
|
|
* @pm: power management control
|
|
* @dec_capability: used to identify decode capability, ex: 4k
|
|
* @enc_capability: used to identify encode capability
|
|
*/
|
|
struct mtk_vcodec_dev {
|
|
struct v4l2_device v4l2_dev;
|
|
struct video_device *vfd_dec;
|
|
struct video_device *vfd_enc;
|
|
|
|
struct v4l2_m2m_dev *m2m_dev_dec;
|
|
struct v4l2_m2m_dev *m2m_dev_enc;
|
|
struct platform_device *plat_dev;
|
|
struct platform_device *vpu_plat_dev;
|
|
struct list_head ctx_list;
|
|
spinlock_t irqlock;
|
|
struct mtk_vcodec_ctx *curr_ctx;
|
|
void __iomem *reg_base[NUM_MAX_VCODEC_REG_BASE];
|
|
|
|
unsigned long id_counter;
|
|
|
|
struct workqueue_struct *decode_workqueue;
|
|
struct workqueue_struct *encode_workqueue;
|
|
int int_cond;
|
|
int int_type;
|
|
struct mutex dev_mutex;
|
|
wait_queue_head_t queue;
|
|
|
|
int dec_irq;
|
|
int enc_irq;
|
|
int enc_lt_irq;
|
|
|
|
struct mutex dec_mutex;
|
|
struct mutex enc_mutex;
|
|
|
|
struct mtk_vcodec_pm pm;
|
|
unsigned int dec_capability;
|
|
unsigned int enc_capability;
|
|
};
|
|
|
|
static inline struct mtk_vcodec_ctx *fh_to_ctx(struct v4l2_fh *fh)
|
|
{
|
|
return container_of(fh, struct mtk_vcodec_ctx, fh);
|
|
}
|
|
|
|
static inline struct mtk_vcodec_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
|
|
{
|
|
return container_of(ctrl->handler, struct mtk_vcodec_ctx, ctrl_hdl);
|
|
}
|
|
|
|
#endif /* _MTK_VCODEC_DRV_H_ */
|