From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6394610E60E for ; Tue, 24 Jan 2023 06:49:52 +0000 (UTC) From: Swati Sharma To: igt-dev@lists.freedesktop.org Date: Tue, 24 Jan 2023 12:21:51 +0530 Message-Id: <20230124065152.19747-5-swati2.sharma@intel.com> In-Reply-To: <20230124065152.19747-1-swati2.sharma@intel.com> References: <20230124065152.19747-1-swati2.sharma@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [igt-dev] [PATCH i-g-t 4/5] lib/dsc: Add helpers for VDSC output format debugfs entry List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: Helper functions are added for VDSC output format debugfs entry. Signed-off-by: Swati Sharma --- lib/igt_dsc.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++ lib/igt_dsc.h | 5 +++++ lib/igt_kms.h | 8 ++++++++ 3 files changed, 67 insertions(+) diff --git a/lib/igt_dsc.c b/lib/igt_dsc.c index 64dd6b29a..6c4ffae26 100644 --- a/lib/igt_dsc.c +++ b/lib/igt_dsc.c @@ -134,3 +134,57 @@ int igt_get_dsc_debugfs_fd(int drmfd, char *connector_name) return openat(igt_debugfs_dir(drmfd), file_name, O_WRONLY); } + +/* + * igt_is_dsc_output_format_supported_by_sink: + * @drmfd: A drm file descriptor + * @connector_name: Name of the libdrm connector we're going to use + * @output_format: Output format + * + * Returns: True if DSC output format is supported for the given connector, + * false otherwise. + */ +bool igt_is_dsc_output_format_supported_by_sink(int drmfd, char *connector_name, + enum dsc_output_format output_format) +{ + const char *check_str = "OUTPUTFORMATNOTFOUND"; + + switch(output_format) { + case DSC_FORMAT_DEFAULT: + return true; + case DSC_FORMAT_RGB: + check_str = "RGB: yes"; + break; + case DSC_FORMAT_YCBCR420: + check_str = "YCBCR420: yes"; + break; + case DSC_FORMAT_YCBCR422: + check_str = "YCBCR422: yes"; + break; + case DSC_FORMAT_YCBCR444: + check_str = "YCBCR444: yes"; + break; + default: + break; + } + + return check_dsc_debugfs(drmfd, connector_name, check_str); +} + +/* + * igt_force_dsc_output_format: + * @drmfd: A drm file descriptor + * @connector_name: Name of the libdrm connector we're going to use + * @output_format: Output format + * + * Returns: 0 on success or negative error code, in case of failure. + */ +int igt_force_dsc_output_format(int drmfd, char *connector_name, + enum dsc_output_format output_format) +{ + char buf[20] = {0}; + + sprintf(buf, "%d", output_format); + + return write_dsc_debugfs(drmfd, connector_name, "i915_dsc_output_format", buf); +} diff --git a/lib/igt_dsc.h b/lib/igt_dsc.h index 291c2cdea..9608aad44 100644 --- a/lib/igt_dsc.h +++ b/lib/igt_dsc.h @@ -7,6 +7,7 @@ #define IGT_DSC_H #include "igt_fb.h" +#include "igt_kms.h" bool igt_is_dsc_supported(int drmfd, char *connector_name); bool igt_is_fec_supported(int drmfd, char *connector_name); @@ -15,5 +16,9 @@ bool igt_is_force_dsc_enabled(int drmfd, char *connector_name); int igt_force_dsc_enable(int drmfd, char *connector_name); int igt_force_dsc_enable_bpc(int drmfd, char *connector_name, int bpc); int igt_get_dsc_debugfs_fd(int drmfd, char *connector_name); +bool igt_is_dsc_output_format_supported_by_sink(int drmfd, char *connector_name, + enum dsc_output_format output_format); +int igt_force_dsc_output_format(int drmfd, char *connector_name, + enum dsc_output_format output_format); #endif diff --git a/lib/igt_kms.h b/lib/igt_kms.h index be5482e08..d677d39f9 100644 --- a/lib/igt_kms.h +++ b/lib/igt_kms.h @@ -106,6 +106,14 @@ enum igt_custom_edid_type { */ #define kmstest_port_name(port) ((port) + 'A') +enum dsc_output_format { + DSC_FORMAT_DEFAULT, + DSC_FORMAT_RGB, + DSC_FORMAT_YCBCR420, + DSC_FORMAT_YCBCR422, + DSC_FORMAT_YCBCR444 +}; + const char *kmstest_encoder_type_str(int type); const char *kmstest_connector_status_str(int status); const char *kmstest_connector_type_str(int type); -- 2.25.1