libweston/modepolicy/DisplayAdapter.cpp

/*
 * Copyright (c) 2022 Amlogic, Inc. All rights reserved.
 *
 * This source code is subject to the terms and conditions defined in the
 * file 'LICENSE' which is part of this source code package.
 *
 * Description:
 */

#include <sys/utsname.h>

#include "DisplayAdapter.h"

static int g_activeLevel= 3;

bool update_sys_node_by_file(DisplayAttributeInfo& info, const string& in, string& out, UpdateType type) {
    bool ret = false;
    char buffer[MAX_BUF_LEN] = {0};
    int len;
    const char* node = info.sysfs_node;
    bool is_read_only = info.is_read_only;
    bool is_write_only = info.is_write_only;

    switch (type) {
        case UT_SET_VALUE:
            if (is_read_only)
                break;
            info.new_value = in;
            if (0 == sysfs_set_string(node, in.c_str())) {
                info.current_value = in;
                ret = true;
            }
            break;
        case UT_GET_VALUE:
            if (is_write_only)
                break;
            if (0 == sysfs_get_string(node, buffer, MAX_BUF_LEN)) {
                out = buffer;
                info.current_value = buffer;
                ret = true;
            }
            break;
        default:
            break;
    }
    return ret;
}

bool update_sys_node_by_property(DisplayAttributeInfo& info, const string& in, string& out, UpdateType type) {
    bool ret = false;
    char buffer[MAX_BUF_LEN] = {0};
    const char* node = info.sysfs_node;
    bool is_read_only = info.is_read_only;
    bool is_write_only = info.is_write_only;

    switch (type) {
        case UT_SET_VALUE:
            if (is_read_only)
                break;
            info.new_value = in;
            if (info.callBack && info.callBack->set_property) {
                info.callBack->set_property(info.obj_id, node, atoi(in.c_str()));
                info.current_value = in;
                ret = true;
            }
            break;
        case UT_GET_VALUE:
            if (is_write_only)
                break;
            if (info.callBack && info.callBack->get_property) {
                if (info.callBack->get_property(info.obj_id, node, buffer) == 0) {
                    out = buffer;
                    info.current_value = buffer;
                    ret = true;
                }
            }
            break;
        default:
            break;
    }
    return ret;
}

DisplayAdapter::DisplayAdapter(drmModeCrtcPtr crtc, drmModeConnector *conn) {
    initDisplayAttributeInfo(crtc, conn);
}

void DisplayAdapter::initDisplayAttributeInfo(drmModeCrtcPtr crtc, drmModeConnector *conn) {
    struct utsname buf;
    int major = 0;
    int minor = 0;
    if (0 == uname(&buf)) {
        if (sscanf(buf.release, "%d.%d", &major, &minor) != 2) {
            major = 0;
        }
    }
    if (major == 0) {
        MESON_LOGV("Can't determine kernel version for access sysfs!");
    }

#define DA_DEFINE(ID, INIT_VAL, UPDATE_FUN)  \
        display_attrs[DA_##ID] = { .name = DISPLAY_##ID, .attr_id = DA_##ID, .current_value = INIT_VAL, .new_value = INIT_VAL, .status_flags = 0, .update_fun = UPDATE_FUN, .sysfs_node = NULL, .obj_id = 0, .is_read_only = false, .is_write_only = false, .callBack = &mCallBack }

    DA_DEFINE(AMDV_CAP, "0", update_sys_node_by_property);
    DA_DEFINE(AMDV_CAP2, "0", update_sys_node_by_file);
    DA_DEFINE(AMDV_ENABLE, "0", update_sys_node_by_property);
    DA_DEFINE(AMDV_MODE, "0", update_sys_node_by_property);
    DA_DEFINE(AMDV_STATUS, "0", update_sys_node_by_file);
    DA_DEFINE(AMDV_POLICY, "0", update_sys_node_by_file);
    DA_DEFINE(AMDV_LL_POLICY, "0", update_sys_node_by_file);
    DA_DEFINE(AMDV_HDR_10_POLICY, "0", update_sys_node_by_file);
    DA_DEFINE(AMDV_GRAPHICS_PRIORITY, "0", update_sys_node_by_file);
    DA_DEFINE(HDR_CAP, "0", update_sys_node_by_property);
    DA_DEFINE(HDR_CAP2, "0", update_sys_node_by_file);
    DA_DEFINE(HDR_POLICY, "0", update_sys_node_by_property);
    DA_DEFINE(HDR_MODE, "0", update_sys_node_by_file);
    DA_DEFINE(SDR_MODE, "0", update_sys_node_by_file);
    DA_DEFINE(HDMI_COLOR_ATTR, "0", update_sys_node_by_file);
    DA_DEFINE(HDMI_AVMUTE, "0", update_sys_node_by_property);
    DA_DEFINE(HDR_PRIORITY, "0", update_sys_node_by_file);
    DA_DEFINE(FORCE_HDR_MODE, "0", update_sys_node_by_file);
    DA_DEFINE(EDID_ATTR, "0", update_sys_node_by_property);
    DA_DEFINE(FRAC_RATE_POLICY, "0", update_sys_node_by_property);

#define DA_SET_NODE(ID, NODE) \
        display_attrs[DA_##ID].sysfs_node = NODE
    if (major >= 5) {
        DA_SET_NODE(AMDV_STATUS ,"/sys/module/aml_media/parameters/dolby_vision_status");
        DA_SET_NODE(AMDV_POLICY ,"/sys/module/aml_media/parameters/dolby_vision_policy");
        DA_SET_NODE(AMDV_LL_POLICY ,"/sys/module/aml_media/parameters/dolby_vision_ll_policy");
        DA_SET_NODE(AMDV_HDR_10_POLICY ,"/sys/module/aml_media/parameters/dolby_vision_hdr10_policy");
        DA_SET_NODE(AMDV_GRAPHICS_PRIORITY ,"/sys/module/aml_media/parameters/dolby_vision_graphics_priority");
        DA_SET_NODE(HDR_MODE ,"/sys/module/aml_media/parameters/hdr_mode");
        DA_SET_NODE(SDR_MODE ,"/sys/module/aml_media/parameters/sdr_mode");
    } else {
        DA_SET_NODE(AMDV_STATUS ,"/sys/module/amdolby_vision/parameters/dolby_vision_status");
        DA_SET_NODE(AMDV_POLICY ,"/sys/module/amdolby_vision/parameters/dolby_vision_policy");
        DA_SET_NODE(AMDV_LL_POLICY ,"/sys/module/amdolby_vision/parameters/dolby_vision_ll_policy");
        DA_SET_NODE(AMDV_HDR_10_POLICY ,"/sys/module/amdolby_vision/parameters/dolby_vision_hdr10_policy");
        DA_SET_NODE(AMDV_GRAPHICS_PRIORITY ,"/sys/module/amdolby_vision/parameters/dolby_vision_graphics_priority");
        DA_SET_NODE(HDR_MODE ,"/sys/module/am_vecm/parameters/hdr_mode");
        DA_SET_NODE(SDR_MODE ,"/sys/module/am_vecm/parameters/sdr_mode");
    }
    DA_SET_NODE(AMDV_CAP, "dv_cap");
    DA_SET_NODE(AMDV_CAP2, "/sys/class/amhdmitx/amhdmitx0/dv_cap2");
    DA_SET_NODE(AMDV_MODE, "dv_mode");
    DA_SET_NODE(HDR_CAP, "hdr_cap");
    DA_SET_NODE(HDR_CAP2, "/sys/class/amhdmitx/amhdmitx0/hdr_cap2");
    DA_SET_NODE(HDR_POLICY, "meson.crtc.hdr_policy");
    DA_SET_NODE(AMDV_ENABLE, "dv_enable");
    DA_SET_NODE(HDMI_COLOR_ATTR ,"/sys/class/amhdmitx/amhdmitx0/attr");
    DA_SET_NODE(HDMI_AVMUTE ,"MESON_DRM_HDMITX_PROP_AVMUTE");
    DA_SET_NODE(HDR_PRIORITY, "/sys/class/amhdmitx/amhdmitx0/hdr_priority_mode");
    DA_SET_NODE(FORCE_HDR_MODE, "/sys/module/aml_media/parameters/force_output");
    DA_SET_NODE(EDID_ATTR, "EDID");
    DA_SET_NODE(FRAC_RATE_POLICY, "FRAC_RATE_POLICY");

#define DA_SET_READ_ONLY(ID) \
        display_attrs[DA_##ID].is_read_only = true
    DA_SET_READ_ONLY(AMDV_CAP);
    DA_SET_READ_ONLY(AMDV_CAP2);
    DA_SET_READ_ONLY(AMDV_STATUS);
    DA_SET_READ_ONLY(HDR_CAP);
    DA_SET_READ_ONLY(HDR_CAP2);
#define DA_SET_WRITE_ONLY(ID) \
        display_attrs[DA_##ID].is_write_only= true
    // DA_SET_WRITE_ONLY(AMDV_MODE);

#define DA_SET_OBJ_ID(ID, id) \
    display_attrs[DA_##ID].obj_id = id
    if (conn) {
        DA_SET_OBJ_ID(AMDV_CAP, conn->connector_id);
        DA_SET_OBJ_ID(AMDV_CAP2, conn->connector_id);
        DA_SET_OBJ_ID(HDR_CAP, conn->connector_id);
        DA_SET_OBJ_ID(HDMI_AVMUTE, conn->connector_id);
        DA_SET_OBJ_ID(EDID_ATTR, conn->connector_id);
        DA_SET_OBJ_ID(FRAC_RATE_POLICY, conn->connector_id);
        DA_SET_OBJ_ID(HDMI_COLOR_ATTR, conn->connector_id);
    }
    if (crtc) {
        DA_SET_OBJ_ID(AMDV_MODE, crtc->crtc_id);
        DA_SET_OBJ_ID(HDR_POLICY, crtc->crtc_id);
        DA_SET_OBJ_ID(AMDV_ENABLE, crtc->crtc_id);
    }
}

bool DisplayAdapter::getDisplayMode(char *mode) {
    if (mCallBack.get_mode)
        return mCallBack.get_mode(mode);
    return false;
}

bool DisplayAdapter::setDisplayMode(std::string &mode) {
    char name[DRM_DISPLAY_MODE_LEN] = { 0 };

    strncpy(name, mode.c_str(), DRM_DISPLAY_MODE_LEN - 1);
    if (mCallBack.set_mode)
        return mCallBack.set_mode(name);
    return false;
}

bool DisplayAdapter::setDisplayRect(int x, int y, int width, int height) {
    if (mCallBack.set_scaling_position)
        mCallBack.set_scaling_position(x, y, width, height);
    return true;
}

void DisplayAdapter::setColorAttribute(const char *attr) {
    if (mCallBack.set_colorattribute)
        mCallBack.set_colorattribute(attr);
}

DisplayAttributeInfo* DisplayAdapter::getDisplayAttributeInfo(const std::string &name)
{
    int i = 0;
    for (i = 0; i < DA_DISPLAY_ATTRIBUTE__COUNT; i++) {
        if (display_attrs[i].name == name) {
            return &(display_attrs[i]);
        }
    }
    return NULL;
}

int32_t DisplayAdapter::setColorAttrProperty(DisplayAttributeInfo *info, const std::string & hdmiColorAttr) {
    uint32_t color_depth_value = 0;
    uint32_t color_space_value = 0;
    int ret = -1;

    if (strstr(hdmiColorAttr.c_str(), "rgb")) {
        color_space_value = 0;
    } else if (strstr(hdmiColorAttr.c_str(), "422")) {
        color_space_value = 1;
    } else if (strstr(hdmiColorAttr.c_str(), "444")) {
        color_space_value = 2;
    } else if (strstr(hdmiColorAttr.c_str(), "420")) {
        color_space_value = 3;
    }

    if (strstr(hdmiColorAttr.c_str(), "8bit")) {
        color_depth_value = 8;
    } else if (strstr(hdmiColorAttr.c_str(), "10bit")) {
        color_depth_value = 10;
    } else if (strstr(hdmiColorAttr.c_str(), "12bit")) {
        color_depth_value = 12;
    }

    if (info->callBack && info->callBack->set_property) {
        MESON_LOGD("set colorspace: %d, colordepth: %d", color_space_value, color_depth_value);
        ret = info->callBack->set_property(info->obj_id, "color_space", color_space_value);
        ret |= info->callBack->set_property(info->obj_id, "color_depth", color_depth_value);
    }
    return ret;
}

bool DisplayAdapter::setDisplayAttribute(const string& name, const string& value) {
    DisplayAttributeInfo *info = getDisplayAttributeInfo(name);
    if (!info)
        return false;

    if (!strcmp(info->name, DISPLAY_HDMI_COLOR_ATTR)) {
        return setColorAttrProperty(info, value) == 0;
    }

    string out;
    return info->update_fun(*info, value, out, UT_SET_VALUE);
}

bool DisplayAdapter::getColorAttrProperty(DisplayAttributeInfo *info, std::string& attribute) {
    char buffer[MAX_BUF_LEN] = {0};
    std::string colorSpace_str;

    if (info->callBack && info->callBack->get_property) {
        if (info->callBack->get_property(info->obj_id, "color_space", buffer) == 0) {
            switch (atoi(buffer)) {
                case 0:
                    colorSpace_str = "rgb";
                    break;
                case 1:
                    colorSpace_str = "422";
                    break;
                case 2:
                    colorSpace_str = "444";
                    break;
                case 3:
                    colorSpace_str = "420";
                    break;
                default:
                    MESON_LOGE(" invalid colorSpace:%s", buffer);
                    break;
            }
        } else {
            colorSpace_str = "rgb";
        }
        memset(buffer, 0, MAX_BUF_LEN);
        if (info->callBack->get_property(info->obj_id, "color_depth", buffer) < 0)
            strcpy(buffer, "8");
        attribute = colorSpace_str + "," + std::to_string(atoi(buffer)) + "bit";
        MESON_LOGD(" colorSpace,colorDepth: %s", attribute.c_str());
        return true;
    }
    return false;
}

bool DisplayAdapter::getDisplayAttribute(const string& name, string& value) {
    DisplayAttributeInfo *info = getDisplayAttributeInfo(name);
    bool ret = false;
    string out = "";
    if (!info)
        return false;

    if (!strcmp(info->name, DISPLAY_HDMI_COLOR_ATTR)) {
        ret = getColorAttrProperty(info, value);
        return ret;
    }

    ret = info->update_fun(*info, "", out, UT_GET_VALUE);
    if (ret) {
        value = out;
    }
    return ret;
}

void DisplayAdapter::registerCallBack(CompositorFunctionCallBack callback) {
    mCallBack = callback;
}

void DisplayAdapter::setLogLevel(int level) {
    g_activeLevel = level;
}