diff options
Diffstat (limited to 'tests/kms_psr_sink_crc.c')
| -rw-r--r-- | tests/kms_psr_sink_crc.c | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/tests/kms_psr_sink_crc.c b/tests/kms_psr_sink_crc.c index faefde65..ddcc903f 100644 --- a/tests/kms_psr_sink_crc.c +++ b/tests/kms_psr_sink_crc.c @@ -177,9 +177,9 @@ static void fill_render(data_t *data, uint32_t handle, unsigned char color) static bool psr_enabled(data_t *data) { - int ret; FILE *file; - char str[4]; + char buf[4096]; + int ret; if (running_with_psr_disabled) return true; @@ -187,15 +187,30 @@ static bool psr_enabled(data_t *data) file = igt_debugfs_fopen("i915_edp_psr_status", "r"); igt_require(file); - ret = fscanf(file, "Sink_Support: %s\n", str); - igt_assert_neq(ret, 0); - ret = fscanf(file, "Source_OK: %s\n", str); - igt_assert_neq(ret, 0); - ret = fscanf(file, "Enabled: %s\n", str); - igt_assert_neq(ret, 0); + /* First dump the entire file into the debug log for later analysis + * if required. + */ + ret = fread(buf, 1, 4095, file); + igt_require(ret > 0); + buf[ret] = '\0'; + igt_debug("i915_edp_psr_status:\n%s", buf); + fseek(file, 0, SEEK_SET); + + /* Now check that we have all the preconditions required for PSR */ + ret = fscanf(file, "Sink_Support: %s\n", buf); + igt_require_f(ret == 1 && strcmp(buf, "yes") == 0, + "Sink_Support: %s\n", buf); + + ret = fscanf(file, "Source_OK: %s\n", buf); + igt_require_f(ret == 1 && strcmp(buf, "yes") == 0, + "Source_OK: %s\n", buf); + + ret = fscanf(file, "Enabled: %s\n", buf); + igt_require_f(ret == 1 && strcmp(buf, "yes") == 0, + "Enabled: %s\n", buf); fclose(file); - return strcmp(str, "yes") == 0; + return true; } static bool psr_active(data_t *data) |