diff options
Diffstat (limited to 'drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_common.h')
| -rw-r--r-- | drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_common.h | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_common.h b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_common.h new file mode 100644 index 000000000000..ac82be336055 --- /dev/null +++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_common.h @@ -0,0 +1,277 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2022 MediaTek Inc. + * Author: Yunfei Dong <yunfei.dong@mediatek.com> + */ + +#ifndef _VDEC_H264_REQ_COMMON_H_ +#define _VDEC_H264_REQ_COMMON_H_ + +#include <linux/module.h> +#include <linux/slab.h> +#include <media/v4l2-h264.h> +#include <media/v4l2-mem2mem.h> +#include <media/videobuf2-dma-contig.h> + +#include "../mtk_vcodec_dec_drv.h" + +#define NAL_NON_IDR_SLICE 0x01 +#define NAL_IDR_SLICE 0x05 +#define NAL_TYPE(value) ((value) & 0x1F) + +#define BUF_PREDICTION_SZ (64 * 4096) +#define MB_UNIT_LEN 16 + +/* motion vector size (bytes) for every macro block */ +#define HW_MB_STORE_SZ 64 + +#define H264_MAX_MV_NUM 32 + +/** + * struct mtk_h264_dpb_info - h264 dpb information + * + * @y_dma_addr: Y bitstream physical address + * @c_dma_addr: CbCr bitstream physical address + * @reference_flag: reference picture flag (short/long term reference picture) + * @field: field picture flag + */ +struct mtk_h264_dpb_info { + dma_addr_t y_dma_addr; + dma_addr_t c_dma_addr; + int reference_flag; + int field; +}; + +/* + * struct mtk_h264_sps_param - parameters for sps + */ +struct mtk_h264_sps_param { + unsigned char chroma_format_idc; + unsigned char bit_depth_luma_minus8; + unsigned char bit_depth_chroma_minus8; + unsigned char log2_max_frame_num_minus4; + unsigned char pic_order_cnt_type; + unsigned char log2_max_pic_order_cnt_lsb_minus4; + unsigned char max_num_ref_frames; + unsigned char separate_colour_plane_flag; + unsigned short pic_width_in_mbs_minus1; + unsigned short pic_height_in_map_units_minus1; + unsigned int max_frame_nums; + unsigned char qpprime_y_zero_transform_bypass_flag; + unsigned char delta_pic_order_always_zero_flag; + unsigned char frame_mbs_only_flag; + unsigned char mb_adaptive_frame_field_flag; + unsigned char direct_8x8_inference_flag; + unsigned char reserved[3]; +}; + +/* + * struct mtk_h264_pps_param - parameters for pps + */ +struct mtk_h264_pps_param { + unsigned char num_ref_idx_l0_default_active_minus1; + unsigned char num_ref_idx_l1_default_active_minus1; + unsigned char weighted_bipred_idc; + char pic_init_qp_minus26; + char chroma_qp_index_offset; + char second_chroma_qp_index_offset; + unsigned char entropy_coding_mode_flag; + unsigned char pic_order_present_flag; + unsigned char deblocking_filter_control_present_flag; + unsigned char constrained_intra_pred_flag; + unsigned char weighted_pred_flag; + unsigned char redundant_pic_cnt_present_flag; + unsigned char transform_8x8_mode_flag; + unsigned char scaling_matrix_present_flag; + unsigned char reserved[2]; +}; + +/* + * struct mtk_h264_slice_hd_param - parameters for slice header + */ +struct mtk_h264_slice_hd_param { + unsigned int first_mb_in_slice; + unsigned int field_pic_flag; + unsigned int slice_type; + unsigned int frame_num; + int pic_order_cnt_lsb; + int delta_pic_order_cnt_bottom; + unsigned int bottom_field_flag; + unsigned int direct_spatial_mv_pred_flag; + int delta_pic_order_cnt0; + int delta_pic_order_cnt1; + unsigned int cabac_init_idc; + int slice_qp_delta; + unsigned int disable_deblocking_filter_idc; + int slice_alpha_c0_offset_div2; + int slice_beta_offset_div2; + unsigned int num_ref_idx_l0_active_minus1; + unsigned int num_ref_idx_l1_active_minus1; + unsigned int reserved; +}; + +/* + * struct slice_api_h264_scaling_matrix - parameters for scaling list + */ +struct slice_api_h264_scaling_matrix { + unsigned char scaling_list_4x4[6][16]; + unsigned char scaling_list_8x8[6][64]; +}; + +/* + * struct slice_h264_dpb_entry - each dpb information + */ +struct slice_h264_dpb_entry { + unsigned long long reference_ts; + unsigned short frame_num; + unsigned short pic_num; + /* Note that field is indicated by v4l2_buffer.field */ + int top_field_order_cnt; + int bottom_field_order_cnt; + unsigned int flags; +}; + +/* + * struct slice_api_h264_decode_param - parameters for decode. + */ +struct slice_api_h264_decode_param { + struct slice_h264_dpb_entry dpb[V4L2_H264_NUM_DPB_ENTRIES]; + unsigned short num_slices; + unsigned short nal_ref_idc; + unsigned char ref_pic_list_p0[32]; + unsigned char ref_pic_list_b0[32]; + unsigned char ref_pic_list_b1[32]; + int top_field_order_cnt; + int bottom_field_order_cnt; + unsigned int flags; +}; + +/** + * struct h264_fb - h264 decode frame buffer information + * + * @vdec_fb_va: virtual address of struct vdec_fb + * @y_fb_dma: dma address of Y frame buffer (luma) + * @c_fb_dma: dma address of C frame buffer (chroma) + * @poc: picture order count of frame buffer + * @reserved: for 8 bytes alignment + */ +struct h264_fb { + u64 vdec_fb_va; + u64 y_fb_dma; + u64 c_fb_dma; + s32 poc; + u32 reserved; +}; + +/** + * mtk_vdec_h264_get_ref_list - translate V4L2 reference list + * + * @ref_list: Mediatek reference picture list + * @v4l2_ref_list: V4L2 reference picture list + * @num_valid: used reference number + */ +void mtk_vdec_h264_get_ref_list(u8 *ref_list, + const struct v4l2_h264_reference *v4l2_ref_list, + int num_valid); + +/** + * mtk_vdec_h264_get_ctrl_ptr - get each CID contrl address. + * + * @ctx: v4l2 ctx + * @id: CID control ID + * + * Return: returns CID ctrl address. + */ +void *mtk_vdec_h264_get_ctrl_ptr(struct mtk_vcodec_dec_ctx *ctx, int id); + +/** + * mtk_vdec_h264_fill_dpb_info - get each CID contrl address. + * + * @ctx: v4l2 ctx + * @decode_params: slice decode params + * @h264_dpb_info: dpb buffer information + */ +void mtk_vdec_h264_fill_dpb_info(struct mtk_vcodec_dec_ctx *ctx, + struct slice_api_h264_decode_param *decode_params, + struct mtk_h264_dpb_info *h264_dpb_info); + +/** + * mtk_vdec_h264_copy_sps_params - get sps params. + * + * @dst_param: sps params for hw decoder + * @src_param: sps params from user driver + */ +void mtk_vdec_h264_copy_sps_params(struct mtk_h264_sps_param *dst_param, + const struct v4l2_ctrl_h264_sps *src_param); + +/** + * mtk_vdec_h264_copy_pps_params - get pps params. + * + * @dst_param: pps params for hw decoder + * @src_param: pps params from user driver + */ +void mtk_vdec_h264_copy_pps_params(struct mtk_h264_pps_param *dst_param, + const struct v4l2_ctrl_h264_pps *src_param); + +/** + * mtk_vdec_h264_copy_slice_hd_params - get slice header params. + * + * @dst_param: slice params for hw decoder + * @src_param: slice params from user driver + * @dec_param: decode params from user driver + */ +void mtk_vdec_h264_copy_slice_hd_params(struct mtk_h264_slice_hd_param *dst_param, + const struct v4l2_ctrl_h264_slice_params *src_param, + const struct v4l2_ctrl_h264_decode_params *dec_param); + +/** + * mtk_vdec_h264_copy_scaling_matrix - get each CID contrl address. + * + * @dst_matrix: scaling list params for hw decoder + * @src_matrix: scaling list params from user driver + */ +void mtk_vdec_h264_copy_scaling_matrix(struct slice_api_h264_scaling_matrix *dst_matrix, + const struct v4l2_ctrl_h264_scaling_matrix *src_matrix); + +/** + * mtk_vdec_h264_copy_decode_params - get decode params. + * + * @dst_params: dst params for hw decoder + * @src_params: decode params from user driver + * @dpb: dpb information + */ +void +mtk_vdec_h264_copy_decode_params(struct slice_api_h264_decode_param *dst_params, + const struct v4l2_ctrl_h264_decode_params *src_params, + const struct v4l2_h264_dpb_entry dpb[V4L2_H264_NUM_DPB_ENTRIES]); + +/** + * mtk_vdec_h264_update_dpb - updata dpb list. + * + * @dec_param: v4l2 control decode params + * @dpb: dpb entry informaton + */ +void mtk_vdec_h264_update_dpb(const struct v4l2_ctrl_h264_decode_params *dec_param, + struct v4l2_h264_dpb_entry *dpb); + +/** + * mtk_vdec_h264_find_start_code - find h264 start code using sofeware. + * + * @data: input buffer address + * @data_sz: input buffer size + * + * Return: returns start code position. + */ +int mtk_vdec_h264_find_start_code(unsigned char *data, unsigned int data_sz); + +/** + * mtk_vdec_h264_get_mv_buf_size - get mv buffer size. + * + * @width: picture width + * @height: picture height + * + * Return: returns mv buffer size. + */ +unsigned int mtk_vdec_h264_get_mv_buf_size(unsigned int width, unsigned int height); + +#endif |