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tests: tegra: Add helper library for tests 

This library provides helpers for common functionality needed by test
programs.

Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
main
Thierry Reding 2021-07-09 20:54:57 +02:00
parent 55bc688f11
commit 37fbc4c892
3 changed files with 327 additions and 0 deletions
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248
tests/tegra/drm-test.c Normal file
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/*
* Copyright © 2014 NVIDIA 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include "xf86drm.h"
#include "xf86drmMode.h"
#include "drm_fourcc.h"
#include "drm-test.h"
static int drm_screen_probe_connector(struct drm_screen *screen,
drmModeConnectorPtr connector)
{
drmModeEncoderPtr encoder;
drmModeCrtcPtr crtc;
drmModeFBPtr fb;
encoder = drmModeGetEncoder(screen->fd, connector->encoder_id);
if (!encoder)
return -ENODEV;
crtc = drmModeGetCrtc(screen->fd, encoder->crtc_id);
if (!crtc) {
drmModeFreeEncoder(encoder);
return -ENODEV;
}
screen->old_fb = crtc->buffer_id;
fb = drmModeGetFB(screen->fd, crtc->buffer_id);
if (!fb) {
/* TODO: create new framebuffer */
drmModeFreeEncoder(encoder);
drmModeFreeCrtc(crtc);
return -ENOSYS;
}
screen->connector = connector->connector_id;
screen->old_fb = crtc->buffer_id;
screen->crtc = encoder->crtc_id;
/* TODO: check crtc->mode_valid */
screen->mode = crtc->mode;
screen->width = fb->width;
screen->height = fb->height;
screen->pitch = fb->pitch;
screen->depth = fb->depth;
screen->bpp = fb->bpp;
drmModeFreeEncoder(encoder);
drmModeFreeCrtc(crtc);
drmModeFreeFB(fb);
return 0;
}
int drm_screen_open(struct drm_screen **screenp, int fd)
{
drmModeConnectorPtr connector;
struct drm_screen *screen;
bool found = false;
drmModeResPtr res;
unsigned int i;
int err;
if (!screenp || fd < 0)
return -EINVAL;
screen = calloc(1, sizeof(*screen));
if (!screen)
return -ENOMEM;
screen->format = DRM_FORMAT_XRGB8888;
screen->fd = fd;
res = drmModeGetResources(fd);
if (!res) {
free(screen);
return -ENOMEM;
}
for (i = 0; i < (unsigned int)res->count_connectors; i++) {
connector = drmModeGetConnector(fd, res->connectors[i]);
if (!connector)
continue;
if (connector->connection != DRM_MODE_CONNECTED) {
drmModeFreeConnector(connector);
continue;
}
err = drm_screen_probe_connector(screen, connector);
if (err < 0) {
drmModeFreeConnector(connector);
continue;
}
drmModeFreeConnector(connector);
found = true;
break;
}
drmModeFreeResources(res);
if (!found) {
free(screen);
return -ENODEV;
}
*screenp = screen;
return 0;
}
int drm_screen_close(struct drm_screen *screen)
{
int err;
err = drmModeSetCrtc(screen->fd, screen->crtc, screen->old_fb, 0, 0,
&screen->connector, 1, &screen->mode);
if (err < 0) {
fprintf(stderr, "drmModeSetCrtc() failed: %m\n");
return -errno;
}
free(screen);
return 0;
}
int drm_framebuffer_new(struct drm_framebuffer **fbp,
struct drm_screen *screen, uint32_t handle,
unsigned int width, unsigned int height,
unsigned int pitch, uint32_t format,
void *data)
{
struct drm_framebuffer *fb;
uint32_t handles[4];
uint32_t pitches[4];
uint32_t offsets[4];
int err;
fb = calloc(1, sizeof(*fb));
if (!fb)
return -ENOMEM;
fb->fd = screen->fd;
fb->width = width;
fb->height = height;
fb->pitch = pitch;
fb->format = format;
fb->data = data;
handles[0] = handle;
pitches[0] = pitch;
offsets[0] = 0;
err = drmModeAddFB2(screen->fd, width, height, format, handles,
pitches, offsets, &fb->handle, 0);
if (err < 0)
return -errno;
*fbp = fb;
return 0;
}
int drm_framebuffer_free(struct drm_framebuffer *fb)
{
int err;
err = drmModeRmFB(fb->fd, fb->handle);
if (err < 0)
return -errno;
free(fb);
return 0;
}
int drm_screen_set_framebuffer(struct drm_screen *screen,
struct drm_framebuffer *fb)
{
int err;
err = drmModeSetCrtc(screen->fd, screen->crtc, fb->handle, 0, 0,
&screen->connector, 1, &screen->mode);
if (err < 0)
return -errno;
return 0;
}
int drm_open(const char *path)
{
int fd, err;
fd = open(path, O_RDWR);
if (fd < 0)
return -errno;
err = drmSetMaster(fd);
if (err < 0) {
close(fd);
return -errno;
}
return fd;
}
void drm_close(int fd)
{
drmDropMaster(fd);
close(fd);
}

72
tests/tegra/drm-test.h Normal file
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/*
* Copyright © 2014 NVIDIA 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
*/
#ifndef TEGRA_DRM_TEST_H
#define TEGRA_DRM_TEST_H
#include <stdint.h>
#include <stdlib.h>
#include "xf86drmMode.h"
struct drm_screen {
int fd;
unsigned int width;
unsigned int height;
unsigned int pitch;
unsigned int depth;
unsigned int bpp;
drmModeModeInfo mode;
uint32_t connector;
uint32_t old_fb;
uint32_t format;
uint32_t crtc;
};
struct drm_framebuffer {
unsigned int width;
unsigned int height;
unsigned int pitch;
uint32_t format;
uint32_t handle;
void *data;
int fd;
};
int drm_screen_open(struct drm_screen **screenp, int fd);
int drm_screen_close(struct drm_screen *screen);
int drm_screen_set_framebuffer(struct drm_screen *screen,
struct drm_framebuffer *fb);
int drm_framebuffer_new(struct drm_framebuffer **fbp,
struct drm_screen *screen, uint32_t handle,
unsigned int width, unsigned int height,
unsigned int pitch, uint32_t format,
void *data);
int drm_framebuffer_free(struct drm_framebuffer *fb);
int drm_open(const char *path);
void drm_close(int fd);
#endif

7
tests/tegra/meson.build
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@ -20,6 +20,13 @@
inc_tegra = include_directories('../../tegra') inc_tegra = include_directories('../../tegra')
libdrm_test = static_library(
'drm-test',
[files('drm-test.c', 'drm-test.h'), config_file ],
include_directories : [inc_root, inc_drm, inc_tegra],
link_with : libdrm,
)
openclose = executable( openclose = executable(
'tegra-openclose', 'tegra-openclose',
files('openclose.c'), files('openclose.c'),