1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (c) 2016 MediaTek Inc. 4 * Author: PC Chen <pc.chen@mediatek.com> 5 * Tiffany Lin <tiffany.lin@mediatek.com> 6 */ 7 8 #ifndef _MTK_VCODEC_DEC_H_ 9 #define _MTK_VCODEC_DEC_H_ 10 11 #include <media/videobuf2-core.h> 12 #include <media/v4l2-mem2mem.h> 13 14 #define VCODEC_CAPABILITY_4K_DISABLED 0x10 15 #define VCODEC_DEC_4K_CODED_WIDTH 4096U 16 #define VCODEC_DEC_4K_CODED_HEIGHT 2304U 17 #define MTK_VDEC_MAX_W 2048U 18 #define MTK_VDEC_MAX_H 1088U 19 #define MTK_VDEC_MIN_W 64U 20 #define MTK_VDEC_MIN_H 64U 21 22 #define MTK_VDEC_IRQ_STATUS_DEC_SUCCESS 0x10000 23 24 /** 25 * struct vdec_fb - decoder frame buffer 26 * @base_y : Y plane memory info 27 * @base_c : C plane memory info 28 * @status : frame buffer status (vdec_fb_status) 29 */ 30 struct vdec_fb { 31 struct mtk_vcodec_mem base_y; 32 struct mtk_vcodec_mem base_c; 33 unsigned int status; 34 }; 35 36 /** 37 * struct mtk_video_dec_buf - Private data related to each VB2 buffer. 38 * @m2m_buf: M2M buffer 39 * @list: link list 40 * @used: Capture buffer contain decoded frame data and keep in 41 * codec data structure 42 * @queued_in_vb2: Capture buffer is queue in vb2 43 * @queued_in_v4l2: Capture buffer is in v4l2 driver, but not in vb2 44 * queue yet 45 * @error: An unrecoverable error occurs on this buffer. 46 * @frame_buffer: Decode status, and buffer information of Capture buffer 47 * @bs_buffer: Output buffer info 48 * 49 * Note : These status information help us track and debug buffer state 50 */ 51 struct mtk_video_dec_buf { 52 struct v4l2_m2m_buffer m2m_buf; 53 54 bool used; 55 bool queued_in_vb2; 56 bool queued_in_v4l2; 57 bool error; 58 59 union { 60 struct vdec_fb frame_buffer; 61 struct mtk_vcodec_mem bs_buffer; 62 }; 63 }; 64 65 extern const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops; 66 extern const struct v4l2_m2m_ops mtk_vdec_m2m_ops; 67 extern const struct media_device_ops mtk_vcodec_media_ops; 68 extern const struct mtk_vcodec_dec_pdata mtk_vdec_8173_pdata; 69 extern const struct mtk_vcodec_dec_pdata mtk_vdec_8183_pdata; 70 71 72 /* 73 * mtk_vdec_lock/mtk_vdec_unlock are for ctx instance to 74 * get/release lock before/after access decoder hw. 75 * mtk_vdec_lock get decoder hw lock and set curr_ctx 76 * to ctx instance that get lock 77 */ 78 void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx); 79 void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx); 80 int mtk_vcodec_dec_queue_init(void *priv, struct vb2_queue *src_vq, 81 struct vb2_queue *dst_vq); 82 void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_ctx *ctx); 83 void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx); 84 85 /* 86 * VB2 ops 87 */ 88 int vb2ops_vdec_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, 89 unsigned int *nplanes, unsigned int sizes[], 90 struct device *alloc_devs[]); 91 int vb2ops_vdec_buf_prepare(struct vb2_buffer *vb); 92 void vb2ops_vdec_buf_finish(struct vb2_buffer *vb); 93 int vb2ops_vdec_buf_init(struct vb2_buffer *vb); 94 int vb2ops_vdec_start_streaming(struct vb2_queue *q, unsigned int count); 95 void vb2ops_vdec_stop_streaming(struct vb2_queue *q); 96 97 98 #endif /* _MTK_VCODEC_DEC_H_ */ 99