diff options
| -rw-r--r-- | tests/Makefile.sources | 1 | ||||
| -rw-r--r-- | tests/kms_dp_aux_dev.c | 121 | ||||
| -rw-r--r-- | tests/meson.build | 1 |
3 files changed, 123 insertions, 0 deletions
diff --git a/tests/Makefile.sources b/tests/Makefile.sources index 17980ed6..1d372286 100644 --- a/tests/Makefile.sources +++ b/tests/Makefile.sources @@ -42,6 +42,7 @@ TESTS_progs = \ kms_cursor_crc \ kms_cursor_edge_walk \ kms_cursor_legacy \ + kms_dp_aux_dev \ kms_dp_dsc \ kms_dp_tiled_display \ kms_draw_crc \ diff --git a/tests/kms_dp_aux_dev.c b/tests/kms_dp_aux_dev.c new file mode 100644 index 00000000..4f52434a --- /dev/null +++ b/tests/kms_dp_aux_dev.c @@ -0,0 +1,121 @@ +/* + * Copyright © 2019 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 "config.h" + +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <dirent.h> + +#include "igt.h" +#include "igt_kms.h" + +IGT_TEST_DESCRIPTION("Test that /dev/drm_dp_aux reads work"); + +static bool test(int drm_fd, uint32_t connector_id) +{ + drmModeConnector *connector; + DIR *dir; + int dir_fd; + + connector = drmModeGetConnectorCurrent(drm_fd, connector_id); + dir_fd = igt_connector_sysfs_open(drm_fd, connector); + drmModeFreeConnector(connector); + igt_assert(dir_fd >= 0); + + dir = fdopendir(dir_fd); + igt_assert(dir); + + for (;;) { + struct dirent *ent; + char path[5 + sizeof(ent->d_name)]; + uint8_t buf[16]; + int fd, ret; + + ent = readdir(dir); + if (!ent) + break; + + if (strncmp(ent->d_name, "drm_dp_aux", 10)) + continue; + + snprintf(path, sizeof(path), "/dev/%s", ent->d_name); + + fd = open(path, O_RDONLY); + igt_assert(fd >= 0); + + ret = read(fd, buf, sizeof(buf)); + igt_assert(ret == sizeof(buf) || errno == ETIMEDOUT); + + igt_info("%s: %s\n", path, + ret > 0 ? "success" : "timed out"); + + close(fd); + + closedir(dir); + close(dir_fd); + + if (ret > 0) { + /* DPCD rev sanity check */ + igt_assert_f(buf[0] == 0x10 || + buf[0] == 0x11 || + buf[0] == 0x12 || + buf[0] == 0x13 || + buf[0] == 0x14, + "Read bogus DPCD rev 0x%02x\n", + buf[0]); + /* DPCD max lane count sanity check */ + igt_assert_f((buf[2] & 0x1f) == 0x01 || + (buf[2] & 0x1f) == 0x02 || + (buf[2] & 0x1f) == 0x04, + "Read bogus DPCD max lane count 0x%02x\n", + buf[2] & 0x1f); + } + + return ret > 0; + } + + closedir(dir); + close(dir_fd); + return false; +} + +igt_simple_main +{ + int valid_connectors = 0; + drmModeRes *res; + int drm_fd; + + drm_fd = drm_open_driver_master(DRIVER_ANY); + + res = drmModeGetResources(drm_fd); + igt_require(res); + + for (int i = 0; i < res->count_connectors; i++) + valid_connectors += test(drm_fd, res->connectors[i]); + igt_require(valid_connectors); + + drmModeFreeResources(res); +} diff --git a/tests/meson.build b/tests/meson.build index 0b15609c..dceea8ef 100644 --- a/tests/meson.build +++ b/tests/meson.build @@ -26,6 +26,7 @@ test_progs = [ 'kms_cursor_crc', 'kms_cursor_edge_walk', 'kms_cursor_legacy', + 'kms_dp_aux_dev', 'kms_dp_dsc', 'kms_dp_tiled_display', 'kms_draw_crc', |