| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Copyright (C) 2018 BayLibre, SAS |
| * Author: Maxime Jourdan <mjourdan@baylibre.com> |
| */ |
| |
| #ifndef __MESON_VDEC_HELPERS_H_ |
| #define __MESON_VDEC_HELPERS_H_ |
| |
| #include "vdec.h" |
| |
| /** |
| * amvdec_set_canvases() - Map VB2 buffers to canvases |
| * |
| * @sess: current session |
| * @reg_base: Registry bases of where to write the canvas indexes |
| * @reg_num: number of contiguous registers after each reg_base (including it) |
| */ |
| int amvdec_set_canvases(struct amvdec_session *sess, |
| u32 reg_base[], u32 reg_num[]); |
| |
| /* Helpers to read/write to the various IPs (DOS, PARSER) */ |
| u32 amvdec_read_dos(struct amvdec_core *core, u32 reg); |
| void amvdec_write_dos(struct amvdec_core *core, u32 reg, u32 val); |
| void amvdec_write_dos_bits(struct amvdec_core *core, u32 reg, u32 val); |
| void amvdec_clear_dos_bits(struct amvdec_core *core, u32 reg, u32 val); |
| u32 amvdec_read_parser(struct amvdec_core *core, u32 reg); |
| void amvdec_write_parser(struct amvdec_core *core, u32 reg, u32 val); |
| |
| u32 amvdec_am21c_body_size(u32 width, u32 height); |
| u32 amvdec_am21c_head_size(u32 width, u32 height); |
| u32 amvdec_am21c_size(u32 width, u32 height); |
| |
| /** |
| * amvdec_dst_buf_done_idx() - Signal that a buffer is done decoding |
| * |
| * @sess: current session |
| * @buf_idx: hardware buffer index |
| * @offset: VIFIFO bitstream offset corresponding to the buffer |
| * @field: V4L2 interlaced field |
| */ |
| void amvdec_dst_buf_done_idx(struct amvdec_session *sess, u32 buf_idx, |
| u32 offset, u32 field); |
| void amvdec_dst_buf_done(struct amvdec_session *sess, |
| struct vb2_v4l2_buffer *vbuf, u32 field); |
| void amvdec_dst_buf_done_offset(struct amvdec_session *sess, |
| struct vb2_v4l2_buffer *vbuf, |
| u32 offset, u32 field, bool allow_drop); |
| |
| /** |
| * amvdec_add_ts() - Add a timestamp to the list |
| * |
| * @sess: current session |
| * @ts: timestamp to add |
| * @offset: offset in the VIFIFO where the associated packet was written |
| * @flags the vb2_v4l2_buffer flags |
| */ |
| void amvdec_add_ts(struct amvdec_session *sess, u64 ts, |
| struct v4l2_timecode tc, u32 offset, u32 flags); |
| void amvdec_remove_ts(struct amvdec_session *sess, u64 ts); |
| |
| /** |
| * amvdec_set_par_from_dar() - Set Pixel Aspect Ratio from Display Aspect Ratio |
| * |
| * @sess: current session |
| * @dar_num: numerator of the DAR |
| * @dar_den: denominator of the DAR |
| */ |
| void amvdec_set_par_from_dar(struct amvdec_session *sess, |
| u32 dar_num, u32 dar_den); |
| |
| /** |
| * amvdec_src_change() - Notify new resolution/DPB size to the core |
| * |
| * @sess: current session |
| * @width: picture width detected by the hardware |
| * @height: picture height detected by the hardware |
| * @dpb_size: Decoded Picture Buffer size (= amount of buffers for decoding) |
| */ |
| void amvdec_src_change(struct amvdec_session *sess, u32 width, |
| u32 height, u32 dpb_size); |
| |
| /** |
| * amvdec_abort() - Abort the current decoding session |
| * |
| * @sess: current session |
| */ |
| void amvdec_abort(struct amvdec_session *sess); |
| #endif |
