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/*
* @copyright Copyright (c) 2018-2020 TOYOTA MOTOR CORPORATION.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "input_drm.h"
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#if defined(_USE_DRM)
#include <xf86drm.h>
#include <xf86drmMode.h>
#endif
#include "input_hal.h"
#include "input_hal_debug.h"
#define DIR_PATH "/dev/dri/card0"
#define DEFAULT_RESOLUTION_HORIZONTAL 1280 /* Horizontal resolution default value */
#define DEFAULT_RESOLUTION_VERTICAL 800 /* Vertical resolution default value */
/**
* Panel resolution acquisition / GetPanelSpecResolutionInput
*/
int GetPanelSpecResolutionInput(int *reso_h, int *reso_v) {
if ((NULL == reso_h) || (NULL == reso_v)) {
return HAL_INPUT_RET_ERROR;
}
#if defined(_USE_DRM)
int fd;
drmModeRes *resources = NULL;
drmModeConnector *connector = NULL;
drmModeEncoder *encoder = NULL;
drmModeCrtc *crtc = NULL;
fd = open(DIR_PATH, O_RDWR);
if (fd < 0) {
INPUT_ERROR_LOG("DRI Open Error=%s\n", DIR_PATH);
goto err_rtn;
}
resources = drmModeGetResources(fd);
if (!resources) {
INPUT_ERROR_LOG("No resources\n");
goto err_rtn;
}
if (2 > resources->count_connectors) {
INPUT_ERROR_LOG("DRI Connect Num Error connectors=%d\n",
resources->count_connectors);
goto err_rtn;
}
connector = drmModeGetConnector(fd, resources->connectors[1]);
if (!connector) {
INPUT_ERROR_LOG("No Connector\n");
goto err_rtn;
}
if ((DRM_MODE_CONNECTED == connector->connection) &&(connector->count_modes > 0)) {
} else {
INPUT_ERROR_LOG("Not found connected connector\n");
goto err_rtn;
}
encoder = drmModeGetEncoder(fd, connector->encoder_id);
if (!encoder) {
INPUT_ERROR_LOG("drmModeGetEncoder null\n");
goto err_rtn;
}
crtc = drmModeGetCrtc(fd, encoder->crtc_id);
if (!crtc) {
INPUT_ERROR_LOG("drmModeGetCrtc null\n");
goto err_rtn;
}
*reso_h = crtc->mode.hdisplay;
*reso_v = crtc->mode.vdisplay;
drmModeFreeCrtc(crtc);
drmModeFreeEncoder(encoder);
drmModeFreeConnector(connector);
drmModeFreeResources(resources);
close(fd);
INPUT_LOG_TRACE("width=%d height=%d\n", *reso_h, *reso_v);
return HAL_INPUT_RET_NORMAL;
err_rtn:
if (encoder) {
drmModeFreeEncoder(encoder);
}
if (connector) {
drmModeFreeConnector(connector);
}
if (resources) {
drmModeFreeResources(resources);
}
if (fd >= 0) {
close(fd);
}
INPUT_ERROR_LOG("Use Default Resolution\n");
*reso_h = DEFAULT_RESOLUTION_HORIZONTAL;
*reso_v = DEFAULT_RESOLUTION_VERTICAL;
return HAL_INPUT_RET_ERROR;
#else
*reso_h = DEFAULT_RESOLUTION_HORIZONTAL;
*reso_v = DEFAULT_RESOLUTION_VERTICAL;
return HAL_INPUT_RET_NORMAL;
#endif
}
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