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JPEG IP found in Exynos5433 is similar to what is in Exynos4, but there are some subtle differences which this patch takes into account. The most important difference is in what is processed by the JPEG IP and what has to be provided to it. In case of 5433 the IP does not parse Huffman and quantisation tables, so this has to be performed with the CPU and the majority of the code in this patch does that. A small but important difference is in what address is passed to the JPEG IP. In case of 5433 it is the SOS (start of scan) position, which is natural, because the headers must be parsed elsewhere. There is also a difference in how the hardware is put to work in device_run. Data structures are extended as appropriate to accommodate the above changes. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Reviewed-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
48 lines
2.2 KiB
C
48 lines
2.2 KiB
C
/* Copyright (c) 2013 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*
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* Author: Jacek Anaszewski <j.anaszewski@samsung.com>
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*
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* Header file of the register interface for JPEG driver on Exynos4x12.
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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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#ifndef JPEG_HW_EXYNOS4_H_
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#define JPEG_HW_EXYNOS4_H_
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void exynos4_jpeg_sw_reset(void __iomem *base);
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void exynos4_jpeg_set_enc_dec_mode(void __iomem *base, unsigned int mode);
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void __exynos4_jpeg_set_img_fmt(void __iomem *base, unsigned int img_fmt,
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unsigned int version);
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void __exynos4_jpeg_set_enc_out_fmt(void __iomem *base, unsigned int out_fmt,
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unsigned int version);
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void exynos4_jpeg_set_enc_tbl(void __iomem *base);
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void exynos4_jpeg_set_interrupt(void __iomem *base, unsigned int version);
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unsigned int exynos4_jpeg_get_int_status(void __iomem *base);
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void exynos4_jpeg_set_huf_table_enable(void __iomem *base, int value);
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void exynos4_jpeg_set_sys_int_enable(void __iomem *base, int value);
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void exynos4_jpeg_set_stream_buf_address(void __iomem *base,
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unsigned int address);
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void exynos4_jpeg_set_stream_size(void __iomem *base,
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unsigned int x_value, unsigned int y_value);
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void exynos4_jpeg_set_frame_buf_address(void __iomem *base,
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struct s5p_jpeg_addr *jpeg_addr);
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void exynos4_jpeg_set_encode_tbl_select(void __iomem *base,
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enum exynos4_jpeg_img_quality_level level);
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void exynos4_jpeg_set_dec_components(void __iomem *base, int n);
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void exynos4_jpeg_select_dec_q_tbl(void __iomem *base, char c, char x);
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void exynos4_jpeg_select_dec_h_tbl(void __iomem *base, char c, char x);
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void exynos4_jpeg_set_encode_hoff_cnt(void __iomem *base, unsigned int fmt);
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void exynos4_jpeg_set_dec_bitstream_size(void __iomem *base, unsigned int size);
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unsigned int exynos4_jpeg_get_stream_size(void __iomem *base);
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void exynos4_jpeg_get_frame_size(void __iomem *base,
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unsigned int *width, unsigned int *height);
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unsigned int exynos4_jpeg_get_frame_fmt(void __iomem *base);
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unsigned int exynos4_jpeg_get_fifo_status(void __iomem *base);
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void exynos4_jpeg_set_timer_count(void __iomem *base, unsigned int size);
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#endif /* JPEG_HW_EXYNOS4_H_ */
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