Add an API function and a test program to force a particular state on a connector.
Signed-off-by: Thomas Wood <[email protected]> --- lib/igt_kms.c | 57 +++++++++++++++++++++++++++++ lib/igt_kms.h | 16 ++++++++ tests/Makefile.sources | 1 + tests/kms_force_connector.c | 89 +++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 163 insertions(+) create mode 100644 tests/kms_force_connector.c diff --git a/lib/igt_kms.c b/lib/igt_kms.c index c0f4f6c..8de8e0a 100644 --- a/lib/igt_kms.c +++ b/lib/igt_kms.c @@ -384,6 +384,63 @@ err1: return -1; } +static int get_card_number(int fd) +{ + struct stat buf; + + /* find the minor number of the device */ + fstat(fd, &buf); + + return minor(buf.st_rdev); +} + +/** + * kmstest_force_connector: + * @fd: drm file descriptor + * @connector: connector + * @state: state to force on @connector + * + * Force the specified state on the specified connector. + */ +void kmstest_force_connector(int drm_fd, drmModeConnector *connector, enum + kmstest_force_connector_state state) +{ + char *path; + const char *value; + int debugfs_fd, ret; + + switch (state) { + case FORCE_CONNECTOR_ON: + value = "on"; + break; + case FORCE_CONNECTOR_DIGITAL: + value = "digital"; + break; + case FORCE_CONNECTOR_OFF: + value = "off"; + break; + + default: + case FORCE_CONNECTOR_UNSPECIFIED: + value = "unspecified"; + break; + } + + asprintf(&path, "/sys/kernel/debug/dri/%d/%s-%d/force", + get_card_number(drm_fd), + kmstest_connector_type_str(connector->connector_type), + connector->connector_type_id); + debugfs_fd = open(path, O_WRONLY | O_TRUNC); + free(path); + + igt_assert(debugfs_fd != -1); + + ret = write(debugfs_fd, value, strlen(value)); + close(debugfs_fd); + + igt_assert(ret != -1); +} + void kmstest_free_connector_config(struct kmstest_connector_config *config) { drmModeFreeCrtc(config->crtc); diff --git a/lib/igt_kms.h b/lib/igt_kms.h index 7d015b4..45a98c8 100644 --- a/lib/igt_kms.h +++ b/lib/igt_kms.h @@ -76,11 +76,27 @@ struct kmstest_connector_config { int pipe; }; +/** + * kmstest_force_connector_state: + * @FORCE_CONNECTOR_UNSPECIFIED: Unspecified + * @FORCE_CONNECTOR_ON: On + * @FORCE_CONNECTOR_DIGITAL: Digital + * @FORCE_CONNECTOR_OFF: Off + */ +enum kmstest_force_connector_state { + FORCE_CONNECTOR_UNSPECIFIED, + FORCE_CONNECTOR_ON, + FORCE_CONNECTOR_DIGITAL, + FORCE_CONNECTOR_OFF +}; + int kmstest_get_connector_default_mode(int drm_fd, drmModeConnector *connector, drmModeModeInfo *mode); int kmstest_get_connector_config(int drm_fd, uint32_t connector_id, unsigned long crtc_idx_mask, struct kmstest_connector_config *config); +void kmstest_force_connector(int fd, drmModeConnector *connector, + enum kmstest_force_connector_state state); void kmstest_free_connector_config(struct kmstest_connector_config *config); void kmstest_dump_mode(drmModeModeInfo *mode); diff --git a/tests/Makefile.sources b/tests/Makefile.sources index 17c0ab9..dc08a3c 100644 --- a/tests/Makefile.sources +++ b/tests/Makefile.sources @@ -138,6 +138,7 @@ TESTS_progs = \ gen3_render_tiledx_blits \ gen3_render_tiledy_blits \ gen7_forcewake_mt \ + kms_force_connector \ kms_sink_crc_basic \ kms_fence_pin_leak \ pm_psr \ diff --git a/tests/kms_force_connector.c b/tests/kms_force_connector.c new file mode 100644 index 0000000..0591da0 --- /dev/null +++ b/tests/kms_force_connector.c @@ -0,0 +1,89 @@ +/* + * Copyright © 2014 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 "igt_core.h" +#include "igt_kms.h" +#include "drmtest.h" + +int +main (int argc, char **argv) +{ + /* force the VGA output and test that it worked */ + int drm_fd; + drmModeRes *res; + drmModeConnector *connector, *temp; + igt_display_t display; + + igt_simple_init(); + + drm_fd = drm_open_any(); + res = drmModeGetResources(drm_fd); + + /* find the vga connector */ + for (int i = 0; i < res->count_connectors; i++) { + + connector = drmModeGetConnector(drm_fd, res->connectors[i]); + + if (connector->connector_type == DRM_MODE_CONNECTOR_VGA) + break; + + drmModeFreeConnector(connector); + + connector = NULL; + } + + igt_assert(connector); + + /* force the connector on and check the reported values */ + kmstest_force_connector(drm_fd, connector, FORCE_CONNECTOR_ON); + temp = drmModeGetConnector(drm_fd, connector->connector_id); + igt_assert(temp->connection == DRM_MODE_CONNECTED); + igt_assert(temp->count_modes > 0); + drmModeFreeConnector(temp); + + /* attempt to use the display */ + igt_set_vt_graphics_mode(); + + igt_display_init(&display, drm_fd); + igt_display_commit(&display); + + + /* force the connector off */ + kmstest_force_connector(drm_fd, connector, FORCE_CONNECTOR_OFF); + temp = drmModeGetConnector(drm_fd, connector->connector_id); + igt_assert(temp->connection == DRM_MODE_DISCONNECTED); + igt_assert(temp->count_modes == 0); + drmModeFreeConnector(temp); + + + /* check that the previous state is restored */ + kmstest_force_connector(drm_fd, connector, FORCE_CONNECTOR_UNSPECIFIED); + temp = drmModeGetConnector(drm_fd, connector->connector_id); + igt_assert(temp->connection == connector->connection); + drmModeFreeConnector(temp); + + drmModeFreeConnector(connector); + + igt_success(); +} -- 1.9.3 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
