cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sun6i_csi.h (3304B)

      1/* SPDX-License-Identifier: GPL-2.0+ */
      2/*
      3 * Copyright (c) 2011-2018 Magewell Electronics Co., Ltd. (Nanjing)
      4 * All rights reserved.
      5 * Author: Yong Deng <yong.deng@magewell.com>
      6 */
      7
      8#ifndef __SUN6I_CSI_H__
      9#define __SUN6I_CSI_H__
     10
     11#include <media/v4l2-ctrls.h>
     12#include <media/v4l2-device.h>
     13#include <media/v4l2-fwnode.h>
     14
     15#include "sun6i_video.h"
     16
     17struct sun6i_csi;
     18
     19/**
     20 * struct sun6i_csi_config - configs for sun6i csi
     21 * @pixelformat: v4l2 pixel format (V4L2_PIX_FMT_*)
     22 * @code:	media bus format code (MEDIA_BUS_FMT_*)
     23 * @field:	used interlacing type (enum v4l2_field)
     24 * @width:	frame width
     25 * @height:	frame height
     26 */
     27struct sun6i_csi_config {
     28	u32		pixelformat;
     29	u32		code;
     30	u32		field;
     31	u32		width;
     32	u32		height;
     33};
     34
     35struct sun6i_csi {
     36	struct device			*dev;
     37	struct v4l2_ctrl_handler	ctrl_handler;
     38	struct v4l2_device		v4l2_dev;
     39	struct media_device		media_dev;
     40
     41	struct v4l2_async_notifier	notifier;
     42
     43	/* video port settings */
     44	struct v4l2_fwnode_endpoint	v4l2_ep;
     45
     46	struct sun6i_csi_config		config;
     47
     48	struct sun6i_video		video;
     49};
     50
     51/**
     52 * sun6i_csi_is_format_supported() - check if the format supported by csi
     53 * @csi:	pointer to the csi
     54 * @pixformat:	v4l2 pixel format (V4L2_PIX_FMT_*)
     55 * @mbus_code:	media bus format code (MEDIA_BUS_FMT_*)
     56 */
     57bool sun6i_csi_is_format_supported(struct sun6i_csi *csi, u32 pixformat,
     58				   u32 mbus_code);
     59
     60/**
     61 * sun6i_csi_set_power() - power on/off the csi
     62 * @csi:	pointer to the csi
     63 * @enable:	on/off
     64 */
     65int sun6i_csi_set_power(struct sun6i_csi *csi, bool enable);
     66
     67/**
     68 * sun6i_csi_update_config() - update the csi register settings
     69 * @csi:	pointer to the csi
     70 * @config:	see struct sun6i_csi_config
     71 */
     72int sun6i_csi_update_config(struct sun6i_csi *csi,
     73			    struct sun6i_csi_config *config);
     74
     75/**
     76 * sun6i_csi_update_buf_addr() - update the csi frame buffer address
     77 * @csi:	pointer to the csi
     78 * @addr:	frame buffer's physical address
     79 */
     80void sun6i_csi_update_buf_addr(struct sun6i_csi *csi, dma_addr_t addr);
     81
     82/**
     83 * sun6i_csi_set_stream() - start/stop csi streaming
     84 * @csi:	pointer to the csi
     85 * @enable:	start/stop
     86 */
     87void sun6i_csi_set_stream(struct sun6i_csi *csi, bool enable);
     88
     89/* get bpp form v4l2 pixformat */
     90static inline int sun6i_csi_get_bpp(unsigned int pixformat)
     91{
     92	switch (pixformat) {
     93	case V4L2_PIX_FMT_SBGGR8:
     94	case V4L2_PIX_FMT_SGBRG8:
     95	case V4L2_PIX_FMT_SGRBG8:
     96	case V4L2_PIX_FMT_SRGGB8:
     97	case V4L2_PIX_FMT_JPEG:
     98		return 8;
     99	case V4L2_PIX_FMT_SBGGR10:
    100	case V4L2_PIX_FMT_SGBRG10:
    101	case V4L2_PIX_FMT_SGRBG10:
    102	case V4L2_PIX_FMT_SRGGB10:
    103		return 10;
    104	case V4L2_PIX_FMT_SBGGR12:
    105	case V4L2_PIX_FMT_SGBRG12:
    106	case V4L2_PIX_FMT_SGRBG12:
    107	case V4L2_PIX_FMT_SRGGB12:
    108	case V4L2_PIX_FMT_NV12_16L16:
    109	case V4L2_PIX_FMT_NV12:
    110	case V4L2_PIX_FMT_NV21:
    111	case V4L2_PIX_FMT_YUV420:
    112	case V4L2_PIX_FMT_YVU420:
    113		return 12;
    114	case V4L2_PIX_FMT_YUYV:
    115	case V4L2_PIX_FMT_YVYU:
    116	case V4L2_PIX_FMT_UYVY:
    117	case V4L2_PIX_FMT_VYUY:
    118	case V4L2_PIX_FMT_NV16:
    119	case V4L2_PIX_FMT_NV61:
    120	case V4L2_PIX_FMT_YUV422P:
    121	case V4L2_PIX_FMT_RGB565:
    122	case V4L2_PIX_FMT_RGB565X:
    123		return 16;
    124	case V4L2_PIX_FMT_RGB24:
    125	case V4L2_PIX_FMT_BGR24:
    126		return 24;
    127	case V4L2_PIX_FMT_RGB32:
    128	case V4L2_PIX_FMT_BGR32:
    129		return 32;
    130	default:
    131		WARN(1, "Unsupported pixformat: 0x%x\n", pixformat);
    132		break;
    133	}
    134
    135	return 0;
    136}
    137
    138#endif /* __SUN6I_CSI_H__ */