| /* |
| * Copyright (c) 2016 MediaTek Inc. |
| * Author: PC Chen <pc.chen@mediatek.com> |
| * Tiffany Lin <tiffany.lin@mediatek.com> |
| * |
| * 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_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> |
| |
| |
| #define MTK_VCODEC_DRV_NAME "mtk_vcodec_drv" |
| #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]; |
| 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 menas FPS is 30 |
| * @framerate_denom: frame rate denominator. ex: framerate_num=30 and |
| * framerate_denom=1 menas 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_pm - Power management data structure |
| */ |
| struct mtk_vcodec_pm { |
| struct clk *vcodecpll; |
| struct clk *univpll_d2; |
| struct clk *clk_cci400_sel; |
| struct clk *vdecpll; |
| struct clk *vdec_sel; |
| struct clk *vencpll_d2; |
| struct clk *venc_sel; |
| struct clk *univpll1_d2; |
| struct clk *venc_lt_sel; |
| struct device *larbvdec; |
| struct device *larbvenc; |
| struct device *larbvenclt; |
| struct device *dev; |
| struct mtk_vcodec_dev *mtkdev; |
| }; |
| |
| /** |
| * 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 |
| * @enc_if: hoooked encoder driver interface |
| * @drv_handle: driver handle for specific decode/encode instance |
| * |
| * @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 |
| * @encode_work: worker for the encoding |
| * |
| * @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 |
| */ |
| 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 venc_common_if *enc_if; |
| unsigned long drv_handle; |
| |
| int int_cond; |
| int int_type; |
| wait_queue_head_t queue; |
| unsigned int irq_status; |
| |
| struct v4l2_ctrl_handler ctrl_hdl; |
| struct work_struct encode_work; |
| |
| enum v4l2_colorspace colorspace; |
| enum v4l2_ycbcr_encoding ycbcr_enc; |
| enum v4l2_quantization quantization; |
| enum v4l2_xfer_func xfer_func; |
| }; |
| |
| /** |
| * struct mtk_vcodec_dev - driver data |
| * @v4l2_dev: V4L2 device to register video devices for. |
| * @vfd_enc: Video device for encoder. |
| * |
| * @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 |
| * @num_instances: counter of active MTK Vcodec instances |
| * |
| * @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 |
| * |
| * @enc_irq: h264 encoder irq resource |
| * @enc_lt_irq: vp8 encoder irq resource |
| * |
| * @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_enc; |
| |
| 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; |
| int num_instances; |
| |
| struct workqueue_struct *encode_workqueue; |
| |
| int int_cond; |
| int int_type; |
| struct mutex dev_mutex; |
| wait_queue_head_t queue; |
| |
| int enc_irq; |
| int enc_lt_irq; |
| |
| 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_ */ |