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/*
* Copyright © 2013 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include "drm_fourcc.h"
#include "drmtest.h"
#include "igt_debugfs.h"
#include "igt_kms.h"
enum color {
WHITE,
BLACK,
NUM_COLORS,
};
typedef struct {
struct kmstest_connector_config config;
struct igt_fb fb;
} connector_t;
typedef struct {
int drm_fd;
drmModeRes *resources;
} data_t;
static void get_crc(char *crc) {
int ret;
FILE *file = fopen("/sys/kernel/debug/dri/0/i915_sink_crc_eDP1", "r");
igt_require(file);
ret = fscanf(file, "%s\n", crc);
igt_require(ret > 0);
fclose(file);
}
static uint32_t create_fb(data_t *data,
int w, int h,
double r, double g, double b,
struct igt_fb *fb)
{
cairo_t *cr;
uint32_t fb_id;
fb_id = igt_create_fb(data->drm_fd, w, h,
DRM_FORMAT_XRGB8888, I915_TILING_NONE, fb);
igt_assert(fb_id);
cr = igt_get_cairo_ctx(data->drm_fd, fb);
igt_paint_color(cr, 0, 0, w, h, r, g, b);
igt_assert(cairo_status(cr) == 0);
return fb_id;
}
static bool
connector_set_mode(data_t *data, connector_t *connector, drmModeModeInfo *mode,
enum color crtc_color)
{
struct kmstest_connector_config *config = &connector->config;
unsigned int fb_id;
int ret;
if (crtc_color == WHITE)
fb_id = create_fb(data, mode->hdisplay, mode->vdisplay,
1.0, 1.0, 1.0, &connector->fb);
else
fb_id = create_fb(data, mode->hdisplay, mode->vdisplay,
0.0, 0.0, 0.0, &connector->fb);
igt_assert(fb_id);
ret = drmModeSetCrtc(data->drm_fd,
config->crtc->crtc_id,
connector->fb.fb_id,
0, 0, /* x, y */
&config->connector->connector_id,
1,
mode);
igt_assert(ret == 0);
return 0;
}
static void basic_sink_crc_check(data_t *data, uint32_t connector_id)
{
connector_t connector;
char ref_crc_white[12];
char ref_crc_black[12];
char crc_check[12];
igt_require(kmstest_get_connector_config(data->drm_fd,
connector_id,
1 << 0,
&connector.config));
/*Go White*/
connector_set_mode(data, &connector, &connector.config.default_mode, WHITE);
/* get reference crc for white color */
get_crc(ref_crc_white);
/* Go Black */
connector_set_mode(data, &connector, &connector.config.default_mode, BLACK);
/* get reference crc for black color */
get_crc(ref_crc_black);
igt_assert(strcmp(ref_crc_black, ref_crc_white) != 0);
/*Go White again*/
connector_set_mode(data, &connector, &connector.config.default_mode, WHITE);
get_crc(crc_check);
igt_assert(strcmp(crc_check, ref_crc_white) == 0);
/* Go Black again */
connector_set_mode(data, &connector, &connector.config.default_mode, BLACK);
get_crc(crc_check);
igt_assert(strcmp(crc_check, ref_crc_black) == 0);
kmstest_free_connector_config(&connector.config);
}
static void run_test(data_t *data)
{
int i;
drmModeConnectorPtr c;
uint32_t connector_id = 0;
for (i = 0; i < data->resources->count_connectors; i++) {
connector_id = data->resources->connectors[i];
c = drmModeGetConnector(data->drm_fd, connector_id);
if (c->connector_type != DRM_MODE_CONNECTOR_eDP ||
c->connection != DRM_MODE_CONNECTED)
continue;
basic_sink_crc_check(data, connector_id);
return;
}
igt_skip("no eDP with CRC support found\n");
}
igt_simple_main
{
data_t data = {};
igt_skip_on_simulation();
data.drm_fd = drm_open_any();
kmstest_set_vt_graphics_mode();
data.resources = drmModeGetResources(data.drm_fd);
igt_assert(data.resources);
run_test(&data);
drmModeFreeResources(data.resources);
}
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