From patchwork Tue Feb 2 13:03:36 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marius Vlad X-Patchwork-Id: 8190141 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id EF94C9F38B for ; Tue, 2 Feb 2016 13:02:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4DCAD2034E for ; Tue, 2 Feb 2016 13:02:35 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id C1A08202EB for ; Tue, 2 Feb 2016 13:02:31 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 383546E2BC; Tue, 2 Feb 2016 05:02:31 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTP id B9CBA6E2BB for ; Tue, 2 Feb 2016 05:02:29 -0800 (PST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga103.jf.intel.com with ESMTP; 02 Feb 2016 05:02:15 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,384,1449561600"; d="scan'208";a="903829723" Received: from mcvlad-wk.rb.intel.com ([10.237.105.57]) by orsmga002.jf.intel.com with ESMTP; 02 Feb 2016 05:02:09 -0800 From: Marius Vlad To: intel-gfx@lists.freedesktop.org Date: Tue, 2 Feb 2016 15:03:36 +0200 Message-Id: <1454418218-10346-1-git-send-email-marius.c.vlad@intel.com> X-Mailer: git-send-email 2.7.0.rc3 Subject: [Intel-gfx] [PATCH 1/3] lib/igt_kms: Add support for 4K and audio HDMI EDID injection. X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Marius Vlad --- lib/igt_kms.c | 176 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ lib/igt_kms.h | 2 + 2 files changed, 178 insertions(+) diff --git a/lib/igt_kms.c b/lib/igt_kms.c index 90c8da7..64aa5d1 100644 --- a/lib/igt_kms.c +++ b/lib/igt_kms.c @@ -858,6 +858,182 @@ void kmstest_edid_add_3d(const unsigned char *edid, size_t length, } /** + * kmstest_edid_add_4k: + * @edid: an existing valid edid block + * @length: length of @edid + * @new_edid_ptr: pointer to where the new edid will be placed + * @new_length: pointer to the size of the new edid + * + * Makes a copy of an existing edid block and adds an extension indicating + * a HDMI 4K mode in vsdb. + */ +void kmstest_edid_add_4k(const unsigned char *edid, size_t length, + unsigned char *new_edid_ptr[], size_t *new_length) +{ + unsigned char *new_edid; + int n_extensions; + char sum = 0; + int pos; + int i; + char cea_header_len = 4, video_block_len = 6, vsdb_block_len = 12; + + igt_assert(new_edid_ptr != NULL && new_length != NULL); + + *new_length = length + 128; + + new_edid = calloc(*new_length, sizeof(char)); + memcpy(new_edid, edid, length); + *new_edid_ptr = new_edid; + + n_extensions = new_edid[126]; + n_extensions++; + new_edid[126] = n_extensions; + + /* recompute checksum */ + for (i = 0; i < 127; i++) { + sum = sum + new_edid[i]; + } + new_edid[127] = 256 - sum; + + /* add a cea-861 extension block */ + pos = length; + new_edid[pos++] = 0x2; + new_edid[pos++] = 0x3; + new_edid[pos++] = cea_header_len + video_block_len + vsdb_block_len; + new_edid[pos++] = 0x0; + + /* video block (id | length) */ + new_edid[pos++] = 2 << 5 | (video_block_len - 1); + new_edid[pos++] = 32 | 0x80; /* 1080p @ 24Hz | (native)*/ + new_edid[pos++] = 5; /* 1080i @ 60Hz */ + new_edid[pos++] = 20; /* 1080i @ 50Hz */ + new_edid[pos++] = 4; /* 720p @ 60Hz*/ + new_edid[pos++] = 19; /* 720p @ 50Hz*/ + + /* vsdb block ( id | length ) */ + new_edid[pos++] = 3 << 5 | (vsdb_block_len - 1); + /* registration id */ + new_edid[pos++] = 0x3; + new_edid[pos++] = 0xc; + new_edid[pos++] = 0x0; + /* source physical address */ + new_edid[pos++] = 0x10; + new_edid[pos++] = 0x00; + /* Supports_AI ... etc */ + new_edid[pos++] = 0x00; + /* Max TMDS Clock */ + new_edid[pos++] = 0x00; + /* Latency present, HDMI Video Present */ + new_edid[pos++] = 0x20; + /* HDMI Video */ + new_edid[pos++] = 0x00; /* 3D present */ + + /* HDMI MODE LEN -- how many entries */ + new_edid[pos++] = 0x20; + /* 2160p, specified as short descriptor */ + new_edid[pos++] = 0x01; + + + /* checksum */ + sum = 0; + for (i = 0; i < 127; i++) { + sum = sum + new_edid[length + i]; + } + new_edid[length + 127] = 256 - sum; +} + +/** + * kmstest_edid_add_audio: + * @edid: an existing valid edid block + * @length: length of @edid + * @new_edid_ptr: pointer to where the new edid will be placed + * @new_length: pointer to the size of the new edid + * + * Makes a copy of an existing edid block and adds an extension indicating + * basic audio support. + * + */ +void kmstest_edid_add_audio(const unsigned char *edid, size_t length, + unsigned char *new_edid_ptr[], size_t *new_length) +{ + unsigned char *new_edid; + int n_extensions; + char sum = 0; + int pos; + int i; + char cea_header_len = 4, video_block_len = 6, vsdb_block_len = 12; + char audio_block_len = 4; + + igt_assert(new_edid_ptr != NULL && new_length != NULL); + + *new_length = length + 128; + + new_edid = calloc(*new_length, sizeof(char)); + memcpy(new_edid, edid, length); + *new_edid_ptr = new_edid; + + n_extensions = new_edid[126]; + n_extensions++; + new_edid[126] = n_extensions; + + /* recompute checksum */ + for (i = 0; i < 127; i++) { + sum = sum + new_edid[i]; + } + new_edid[127] = 256 - sum; + + /* add a cea-861 extension block */ + pos = length; + new_edid[pos++] = 0x2; + new_edid[pos++] = 0x3; + new_edid[pos++] = cea_header_len + audio_block_len + + video_block_len + vsdb_block_len; + new_edid[pos++] = (1 << 6); /* support basic audio */ + + /* audio block, short audio block descriptors */ + new_edid[pos++] = (1 << 5) | (audio_block_len - 1); + new_edid[pos++] = 0x09; /* Audio Format, PCM */ + new_edid[pos++] = 0x07; /* Frequency, 32, 44.1, 48kHz */ + new_edid[pos++] = 0x07; /* Bit Rate 16, 20, 24 bit */ + + /* video block (id | length) */ + new_edid[pos++] = 2 << 5 | (video_block_len - 1); + new_edid[pos++] = 32 | 0x80; /* 1080p @ 24Hz | (native)*/ + new_edid[pos++] = 5; /* 1080i @ 60Hz */ + new_edid[pos++] = 20; /* 1080i @ 50Hz */ + new_edid[pos++] = 4; /* 720p @ 60Hz*/ + new_edid[pos++] = 19; /* 720p @ 50Hz*/ + + + /* vsdb block ( id | length ) -- need vsdb as well + * otherwise the kernel will fallback to lower clock modes */ + new_edid[pos++] = 3 << 5 | (vsdb_block_len - 1); + /* registration id */ + new_edid[pos++] = 0x3; + new_edid[pos++] = 0xc; + new_edid[pos++] = 0x0; + /* source physical address */ + new_edid[pos++] = 0x10; + new_edid[pos++] = 0x00; + /* Supports_AI ... etc */ + new_edid[pos++] = 0x00; + /* Max TMDS Clock */ + new_edid[pos++] = 0x00; + /* Latency present, HDMI Video Present */ + new_edid[pos++] = 0x20; + /* HDMI Video */ + new_edid[pos++] = 0x00; /* 3D present */ + + + /* checksum */ + sum = 0; + for (i = 0; i < 127; i++) { + sum = sum + new_edid[length + i]; + } + new_edid[length + 127] = 256 - sum; +} + +/** * kmstest_unset_all_crtcs: * @drm_fd: the DRM fd * @resources: libdrm resources pointer diff --git a/lib/igt_kms.h b/lib/igt_kms.h index 3f7add5..1f79f55 100644 --- a/lib/igt_kms.h +++ b/lib/igt_kms.h @@ -132,6 +132,8 @@ enum kmstest_force_connector_state { bool kmstest_force_connector(int fd, drmModeConnector *connector, enum kmstest_force_connector_state state); void kmstest_edid_add_3d(const unsigned char *edid, size_t length, unsigned char *new_edid_ptr[], size_t *new_length); +void kmstest_edid_add_4k(const unsigned char *edid, size_t length, unsigned char *new_edid_ptr[], size_t *new_length); +void kmstest_edid_add_audio(const unsigned char *edid, size_t length, unsigned char *new_edid_ptr[], size_t *new_length); void kmstest_force_edid(int drm_fd, drmModeConnector *connector, const unsigned char *edid, size_t length);