/* * Copyright (c) 2016 MediaTek Inc. * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com> * Rick Chang <rick.chang@mediatek.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef _MTK_JPEG_CORE_H #define _MTK_JPEG_CORE_H #include <linux/interrupt.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-fh.h> #define MTK_JPEG_NAME "mtk-jpeg" #define MTK_JPEG_FMT_FLAG_DEC_OUTPUT BIT(0) #define MTK_JPEG_FMT_FLAG_DEC_CAPTURE BIT(1) #define MTK_JPEG_FMT_TYPE_OUTPUT 1 #define MTK_JPEG_FMT_TYPE_CAPTURE 2 #define MTK_JPEG_MIN_WIDTH 32 #define MTK_JPEG_MIN_HEIGHT 32 #define MTK_JPEG_MAX_WIDTH 8192 #define MTK_JPEG_MAX_HEIGHT 8192 #define MTK_JPEG_DEFAULT_SIZEIMAGE (1 * 1024 * 1024) enum mtk_jpeg_ctx_state { MTK_JPEG_INIT = 0, MTK_JPEG_RUNNING, MTK_JPEG_SOURCE_CHANGE, }; /** * struct mt_jpeg - JPEG IP abstraction * @lock: the mutex protecting this structure * @hw_lock: spinlock protecting the hw device resource * @workqueue: decode work queue * @dev: JPEG device * @v4l2_dev: v4l2 device for mem2mem mode * @m2m_dev: v4l2 mem2mem device data * @alloc_ctx: videobuf2 memory allocator's context * @dec_vdev: video device node for decoder mem2mem mode * @dec_reg_base: JPEG registers mapping * @clk_jdec: JPEG hw working clock * @clk_jdec_smi: JPEG SMI bus clock * @larb: SMI device */ struct mtk_jpeg_dev { struct mutex lock; spinlock_t hw_lock; struct workqueue_struct *workqueue; struct device *dev; struct v4l2_device v4l2_dev; struct v4l2_m2m_dev *m2m_dev; void *alloc_ctx; struct video_device *dec_vdev; void __iomem *dec_reg_base; struct clk *clk_jdec; struct clk *clk_jdec_smi; struct device *larb; }; /** * struct jpeg_fmt - driver's internal color format data * @fourcc: the fourcc code, 0 if not applicable * @h_sample: horizontal sample count of plane in 4 * 4 pixel image * @v_sample: vertical sample count of plane in 4 * 4 pixel image * @colplanes: number of color planes (1 for packed formats) * @h_align: horizontal alignment order (align to 2^h_align) * @v_align: vertical alignment order (align to 2^v_align) * @flags: flags describing format applicability */ struct mtk_jpeg_fmt { u32 fourcc; int h_sample[VIDEO_MAX_PLANES]; int v_sample[VIDEO_MAX_PLANES]; int colplanes; int h_align; int v_align; u32 flags; }; /** * mtk_jpeg_q_data - parameters of one queue * @fmt: driver-specific format of this queue * @w: image width * @h: image height * @bytesperline: distance in bytes between the leftmost pixels in two adjacent * lines * @sizeimage: image buffer size in bytes */ struct mtk_jpeg_q_data { struct mtk_jpeg_fmt *fmt; u32 w; u32 h; u32 bytesperline[VIDEO_MAX_PLANES]; u32 sizeimage[VIDEO_MAX_PLANES]; }; /** * mtk_jpeg_ctx - the device context data * @jpeg: JPEG IP device for this context * @out_q: source (output) queue information * @cap_q: destination (capture) queue queue information * @fh: V4L2 file handle * @dec_param parameters for HW decoding * @state: state of the context * @header_valid: set if header has been parsed and valid * @colorspace: enum v4l2_colorspace; supplemental to pixelformat * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding * @quantization: enum v4l2_quantization, colorspace quantization * @xfer_func: enum v4l2_xfer_func, colorspace transfer function */ struct mtk_jpeg_ctx { struct mtk_jpeg_dev *jpeg; struct mtk_jpeg_q_data out_q; struct mtk_jpeg_q_data cap_q; struct v4l2_fh fh; enum mtk_jpeg_ctx_state state; enum v4l2_colorspace colorspace; enum v4l2_ycbcr_encoding ycbcr_enc; enum v4l2_quantization quantization; enum v4l2_xfer_func xfer_func; }; #endif /* _MTK_JPEG_CORE_H */Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rick Chang | 240 | 100.00% | 1 | 100.00% |
| Total | 240 | 100.00% | 1 | 100.00% |