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b2f0d2724b
Add v4l2 driver for Mediatek JPEG Decoder Signed-off-by: Rick Chang <rick.chang@mediatek.com> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com> Reviewed-by: Ricky Liang <jcliang@chromium.org> Tested-by: Ricky Liang <jcliang@chromium.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
/*
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* Copyright (c) 2016 MediaTek Inc.
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* Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
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* Rick Chang <rick.chang@mediatek.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _MTK_JPEG_HW_H
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#define _MTK_JPEG_HW_H
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#include <media/videobuf2-core.h>
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#include "mtk_jpeg_core.h"
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#include "mtk_jpeg_reg.h"
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enum {
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MTK_JPEG_DEC_RESULT_EOF_DONE = 0,
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MTK_JPEG_DEC_RESULT_PAUSE = 1,
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MTK_JPEG_DEC_RESULT_UNDERFLOW = 2,
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MTK_JPEG_DEC_RESULT_OVERFLOW = 3,
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MTK_JPEG_DEC_RESULT_ERROR_BS = 4,
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MTK_JPEG_DEC_RESULT_ERROR_UNKNOWN = 6
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};
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struct mtk_jpeg_dec_param {
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u32 pic_w;
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u32 pic_h;
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u32 dec_w;
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u32 dec_h;
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u32 src_color;
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u32 dst_fourcc;
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u32 mcu_w;
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u32 mcu_h;
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u32 total_mcu;
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u32 unit_num;
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u32 comp_num;
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u32 comp_id[MTK_JPEG_COMP_MAX];
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u32 sampling_w[MTK_JPEG_COMP_MAX];
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u32 sampling_h[MTK_JPEG_COMP_MAX];
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u32 qtbl_num[MTK_JPEG_COMP_MAX];
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u32 blk_num;
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u32 blk_comp[MTK_JPEG_COMP_MAX];
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u32 membership;
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u32 dma_mcu;
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u32 dma_group;
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u32 dma_last_mcu;
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u32 img_stride[MTK_JPEG_COMP_MAX];
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u32 mem_stride[MTK_JPEG_COMP_MAX];
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u32 comp_w[MTK_JPEG_COMP_MAX];
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u32 comp_size[MTK_JPEG_COMP_MAX];
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u32 y_size;
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u32 uv_size;
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u32 dec_size;
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u8 uv_brz_w;
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};
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static inline u32 mtk_jpeg_align(u32 val, u32 align)
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{
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return (val + align - 1) & ~(align - 1);
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}
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struct mtk_jpeg_bs {
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dma_addr_t str_addr;
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dma_addr_t end_addr;
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size_t size;
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};
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struct mtk_jpeg_fb {
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dma_addr_t plane_addr[MTK_JPEG_COMP_MAX];
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size_t size;
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};
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int mtk_jpeg_dec_fill_param(struct mtk_jpeg_dec_param *param);
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u32 mtk_jpeg_dec_get_int_status(void __iomem *dec_reg_base);
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u32 mtk_jpeg_dec_enum_result(u32 irq_result);
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void mtk_jpeg_dec_set_config(void __iomem *base,
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struct mtk_jpeg_dec_param *config,
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struct mtk_jpeg_bs *bs,
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struct mtk_jpeg_fb *fb);
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void mtk_jpeg_dec_reset(void __iomem *dec_reg_base);
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void mtk_jpeg_dec_start(void __iomem *dec_reg_base);
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#endif /* _MTK_JPEG_HW_H */
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