LXR linux/drivers/media/platform/omap3isp/omap3isp.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * omap3isp.h
   4 *
   5 * TI OMAP3 ISP - Bus Configuration
   6 *
   7 * Copyright (C) 2011 Nokia Corporation
   8 *
   9 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
  10 *           Sakari Ailus <sakari.ailus@iki.fi>
  11 */
  12
  13#ifndef __OMAP3ISP_H__
  14#define __OMAP3ISP_H__
  15
  16enum isp_interface_type {
  17        ISP_INTERFACE_PARALLEL,
  18        ISP_INTERFACE_CSI2A_PHY2,
  19        ISP_INTERFACE_CCP2B_PHY1,
  20        ISP_INTERFACE_CCP2B_PHY2,
  21        ISP_INTERFACE_CSI2C_PHY1,
  22};
  23
  24/**
  25 * struct isp_parallel_cfg - Parallel interface configuration
  26 * @data_lane_shift: Data lane shifter
  27 *              0 - CAMEXT[13:0] -> CAM[13:0]
  28 *              2 - CAMEXT[13:2] -> CAM[11:0]
  29 *              4 - CAMEXT[13:4] -> CAM[9:0]
  30 *              6 - CAMEXT[13:6] -> CAM[7:0]
  31 * @clk_pol: Pixel clock polarity
  32 *              0 - Sample on rising edge, 1 - Sample on falling edge
  33 * @hs_pol: Horizontal synchronization polarity
  34 *              0 - Active high, 1 - Active low
  35 * @vs_pol: Vertical synchronization polarity
  36 *              0 - Active high, 1 - Active low
  37 * @fld_pol: Field signal polarity
  38 *              0 - Positive, 1 - Negative
  39 * @data_pol: Data polarity
  40 *              0 - Normal, 1 - One's complement
  41 * @bt656: Data contain BT.656 embedded synchronization
  42 */
  43struct isp_parallel_cfg {
  44        unsigned int data_lane_shift:3;
  45        unsigned int clk_pol:1;
  46        unsigned int hs_pol:1;
  47        unsigned int vs_pol:1;
  48        unsigned int fld_pol:1;
  49        unsigned int data_pol:1;
  50        unsigned int bt656:1;
  51};
  52
  53enum {
  54        ISP_CCP2_PHY_DATA_CLOCK = 0,
  55        ISP_CCP2_PHY_DATA_STROBE = 1,
  56};
  57
  58enum {
  59        ISP_CCP2_MODE_MIPI = 0,
  60        ISP_CCP2_MODE_CCP2 = 1,
  61};
  62
  63/**
  64 * struct isp_csiphy_lane: CCP2/CSI2 lane position and polarity
  65 * @pos: position of the lane
  66 * @pol: polarity of the lane
  67 */
  68struct isp_csiphy_lane {
  69        u8 pos;
  70        u8 pol;
  71};
  72
  73#define ISP_CSIPHY1_NUM_DATA_LANES      1
  74#define ISP_CSIPHY2_NUM_DATA_LANES      2
  75
  76/**
  77 * struct isp_csiphy_lanes_cfg - CCP2/CSI2 lane configuration
  78 * @data: Configuration of one or two data lanes
  79 * @clk: Clock lane configuration
  80 */
  81struct isp_csiphy_lanes_cfg {
  82        struct isp_csiphy_lane data[ISP_CSIPHY2_NUM_DATA_LANES];
  83        struct isp_csiphy_lane clk;
  84};
  85
  86/**
  87 * struct isp_ccp2_cfg - CCP2 interface configuration
  88 * @strobe_clk_pol: Strobe/clock polarity
  89 *              0 - Non Inverted, 1 - Inverted
  90 * @crc: Enable the cyclic redundancy check
  91 * @ccp2_mode: Enable CCP2 compatibility mode
  92 *              ISP_CCP2_MODE_MIPI - MIPI-CSI1 mode
  93 *              ISP_CCP2_MODE_CCP2 - CCP2 mode
  94 * @phy_layer: Physical layer selection
  95 *              ISP_CCP2_PHY_DATA_CLOCK - Data/clock physical layer
  96 *              ISP_CCP2_PHY_DATA_STROBE - Data/strobe physical layer
  97 * @vpclk_div: Video port output clock control
  98 */
  99struct isp_ccp2_cfg {
 100        unsigned int strobe_clk_pol:1;
 101        unsigned int crc:1;
 102        unsigned int ccp2_mode:1;
 103        unsigned int phy_layer:1;
 104        unsigned int vpclk_div:2;
 105        unsigned int vp_clk_pol:1;
 106        struct isp_csiphy_lanes_cfg lanecfg;
 107};
 108
 109/**
 110 * struct isp_csi2_cfg - CSI2 interface configuration
 111 * @crc: Enable the cyclic redundancy check
 112 * @lanecfg: CSI-2 lane configuration
 113 * @num_data_lanes: The number of data lanes in use
 114 */
 115struct isp_csi2_cfg {
 116        unsigned crc:1;
 117        struct isp_csiphy_lanes_cfg lanecfg;
 118        u8 num_data_lanes;
 119};
 120
 121struct isp_bus_cfg {
 122        enum isp_interface_type interface;
 123        union {
 124                struct isp_parallel_cfg parallel;
 125                struct isp_ccp2_cfg ccp2;
 126                struct isp_csi2_cfg csi2;
 127        } bus; /* gcc < 4.6.0 chokes on anonymous union initializers */
 128};
 129
 130#endif  /* __OMAP3ISP_H__ */
 131