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lib: add igt_enable_connectors and igt_reset_connectors

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igt_enable_connectors forces connectors to be enabled where doing so is
known to work well. igt_reset_connectors resets the force state on all
connectors.
This commit is contained in:
Thomas Wood 2014-05-28 14:06:01 +01:00
parent 13cd79c128
commit b6ed9fb0d9
2 changed files with 73 additions and 0 deletions
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70
lib/igt_kms.c
View File

@ -1381,3 +1381,73 @@ void igt_wait_for_vblank(int drm_fd, enum pipe pipe)
igt_assert(drmWaitVBlank(drm_fd, &wait_vbl) == 0);
}
static void reset_connectors_at_exit(int sig)
{
igt_reset_connectors();
}
/**
* igt_enable_connectors:
*
* Force connectors to be enabled where this is known to work well. Use
* #igt_reset_connectors to revert the changes.
*
* An exit handler is installed to ensure connectors are reset when the test
* exits.
*/
void igt_enable_connectors(void)
{
drmModeRes *res;
drmModeConnector *c;
int drm_fd;
drm_fd = drm_open_any();
res = drmModeGetResources(drm_fd);
for (int i = 0; i < res->count_connectors; i++) {
c = drmModeGetConnector(drm_fd, res->connectors[i]);
/* don't attempt to force connectors that are already connected
*/
if (c->connection == DRM_MODE_CONNECTED)
continue;
/* just enable VGA for now */
if (c->connector_type == DRM_MODE_CONNECTOR_VGA)
kmstest_force_connector(drm_fd, c, FORCE_CONNECTOR_ON);
drmModeFreeConnector(c);
}
close(drm_fd);
igt_install_exit_handler(reset_connectors_at_exit);
}
/**
* igt_reset_connectors:
*
* Remove any forced state from the connectors.
*/
void igt_reset_connectors(void)
{
drmModeRes *res;
drmModeConnector *c;
int drm_fd;
drm_fd = drm_open_any();
res = drmModeGetResources(drm_fd);
for (int i = 0; i < res->count_connectors; i++) {
c = drmModeGetConnector(drm_fd, res->connectors[i]);
kmstest_force_connector(drm_fd, c, FORCE_CONNECTOR_UNSPECIFIED);
drmModeFreeConnector(c);
}
close(drm_fd);
}

3
lib/igt_kms.h
View File

@ -228,5 +228,8 @@ void igt_wait_for_vblank(int drm_fd, enum pipe pipe);
#define IGT_FIXED(i,f) ((i) << 16 | (f))
void igt_enable_connectors(void);
void igt_reset_connectors(void);
#endif /* __IGT_KMS_H__ */