cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

sun4i_csi.h (3583B)

      1/* SPDX-License-Identifier: GPL-2.0+ */
      2/*
      3 * Copyright (C) 2016 NextThing Co
      4 * Copyright (C) 2016-2019 Bootlin
      5 *
      6 * Author: Maxime Ripard <maxime.ripard@bootlin.com>
      7 */
      8
      9#ifndef _SUN4I_CSI_H_
     10#define _SUN4I_CSI_H_
     11
     12#include <media/media-device.h>
     13#include <media/v4l2-async.h>
     14#include <media/v4l2-dev.h>
     15#include <media/v4l2-device.h>
     16#include <media/v4l2-fwnode.h>
     17#include <media/videobuf2-core.h>
     18
     19#define CSI_EN_REG			0x00
     20
     21#define CSI_CFG_REG			0x04
     22#define CSI_CFG_INPUT_FMT(fmt)			((fmt) << 20)
     23#define CSI_CFG_OUTPUT_FMT(fmt)			((fmt) << 16)
     24#define CSI_CFG_YUV_DATA_SEQ(seq)		((seq) << 8)
     25#define CSI_CFG_VREF_POL(pol)			((pol) << 2)
     26#define CSI_CFG_HREF_POL(pol)			((pol) << 1)
     27#define CSI_CFG_PCLK_POL(pol)			((pol) << 0)
     28
     29#define CSI_CPT_CTRL_REG		0x08
     30#define CSI_CPT_CTRL_VIDEO_START		BIT(1)
     31#define CSI_CPT_CTRL_IMAGE_START		BIT(0)
     32
     33#define CSI_BUF_ADDR_REG(fifo, buf)	(0x10 + (0x8 * (fifo)) + (0x4 * (buf)))
     34
     35#define CSI_BUF_CTRL_REG		0x28
     36#define CSI_BUF_CTRL_DBN			BIT(2)
     37#define CSI_BUF_CTRL_DBS			BIT(1)
     38#define CSI_BUF_CTRL_DBE			BIT(0)
     39
     40#define CSI_INT_EN_REG			0x30
     41#define CSI_INT_FRM_DONE			BIT(1)
     42#define CSI_INT_CPT_DONE			BIT(0)
     43
     44#define CSI_INT_STA_REG			0x34
     45
     46#define CSI_WIN_CTRL_W_REG		0x40
     47#define CSI_WIN_CTRL_W_ACTIVE(w)		((w) << 16)
     48
     49#define CSI_WIN_CTRL_H_REG		0x44
     50#define CSI_WIN_CTRL_H_ACTIVE(h)		((h) << 16)
     51
     52#define CSI_BUF_LEN_REG			0x48
     53
     54#define CSI_MAX_BUFFER		2
     55#define CSI_MAX_HEIGHT		8192U
     56#define CSI_MAX_WIDTH		8192U
     57
     58enum csi_input {
     59	CSI_INPUT_RAW	= 0,
     60	CSI_INPUT_BT656	= 2,
     61	CSI_INPUT_YUV	= 3,
     62};
     63
     64enum csi_output_raw {
     65	CSI_OUTPUT_RAW_PASSTHROUGH = 0,
     66};
     67
     68enum csi_output_yuv {
     69	CSI_OUTPUT_YUV_422_PLANAR	= 0,
     70	CSI_OUTPUT_YUV_420_PLANAR	= 1,
     71	CSI_OUTPUT_YUV_422_UV		= 4,
     72	CSI_OUTPUT_YUV_420_UV		= 5,
     73	CSI_OUTPUT_YUV_422_MACRO	= 8,
     74	CSI_OUTPUT_YUV_420_MACRO	= 9,
     75};
     76
     77enum csi_yuv_data_seq {
     78	CSI_YUV_DATA_SEQ_YUYV	= 0,
     79	CSI_YUV_DATA_SEQ_YVYU	= 1,
     80	CSI_YUV_DATA_SEQ_UYVY	= 2,
     81	CSI_YUV_DATA_SEQ_VYUY	= 3,
     82};
     83
     84enum csi_subdev_pads {
     85	CSI_SUBDEV_SINK,
     86	CSI_SUBDEV_SOURCE,
     87
     88	CSI_SUBDEV_PADS,
     89};
     90
     91extern const struct v4l2_subdev_ops sun4i_csi_subdev_ops;
     92
     93struct sun4i_csi_format {
     94	u32			mbus;
     95	u32			fourcc;
     96	enum csi_input		input;
     97	u32			output;
     98	unsigned int		num_planes;
     99	u8			bpp[3];
    100	unsigned int		hsub;
    101	unsigned int		vsub;
    102};
    103
    104const struct sun4i_csi_format *sun4i_csi_find_format(const u32 *fourcc,
    105						     const u32 *mbus);
    106
    107struct sun4i_csi {
    108	/* Device resources */
    109	struct device			*dev;
    110
    111	const struct sun4i_csi_traits	*traits;
    112
    113	void __iomem			*regs;
    114	struct clk			*bus_clk;
    115	struct clk			*isp_clk;
    116	struct clk			*ram_clk;
    117	struct reset_control		*rst;
    118
    119	struct vb2_v4l2_buffer		*current_buf[CSI_MAX_BUFFER];
    120
    121	struct {
    122		size_t			size;
    123		void			*vaddr;
    124		dma_addr_t		paddr;
    125	} scratch;
    126
    127	struct v4l2_mbus_config_parallel	bus;
    128
    129	/* Main Device */
    130	struct v4l2_device		v4l;
    131	struct media_device		mdev;
    132	struct video_device		vdev;
    133	struct media_pad		vdev_pad;
    134	struct v4l2_pix_format_mplane	fmt;
    135
    136	/* Local subdev */
    137	struct v4l2_subdev		subdev;
    138	struct media_pad		subdev_pads[CSI_SUBDEV_PADS];
    139	struct v4l2_mbus_framefmt	subdev_fmt;
    140
    141	/* V4L2 Async variables */
    142	struct v4l2_async_notifier	notifier;
    143	struct v4l2_subdev		*src_subdev;
    144	int				src_pad;
    145
    146	/* V4L2 variables */
    147	struct mutex			lock;
    148
    149	/* Videobuf2 */
    150	struct vb2_queue		queue;
    151	struct list_head		buf_list;
    152	spinlock_t			qlock;
    153	unsigned int			sequence;
    154};
    155
    156int sun4i_csi_dma_register(struct sun4i_csi *csi, int irq);
    157void sun4i_csi_dma_unregister(struct sun4i_csi *csi);
    158
    159int sun4i_csi_v4l2_register(struct sun4i_csi *csi);
    160
    161#endif /* _SUN4I_CSI_H_ */