From nobody Sat Sep 21 00:09:25 2024 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B37CAC761A6 for ; Tue, 4 Apr 2023 08:11:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234145AbjDDILq (ORCPT ); Tue, 4 Apr 2023 04:11:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234030AbjDDILU (ORCPT ); Tue, 4 Apr 2023 04:11:20 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1975D1BFB; Tue, 4 Apr 2023 01:11:18 -0700 (PDT) X-UUID: 43bd0ea0d2c011eda9a90f0bb45854f4-20230404 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=3wEaoqC2uVpKwjysc4h3Pq7cma8qpw1BEVmgLuijeno=; b=W3GQevhlAUOI5S+n+w7D+Sjrncv4HztBIvMS87QwGcbuOhhauh2Wayfr+Um+1uTDl/WzdYlaLfo+TTpXtbe1IYFnKmQ4CS85tH4mvDBOZIjj9qdJmXOse0iVhlCfS8a8es5OSrTsn/FR05Wl6HNMtSp++HSB6rseQ5I1CVbVCYw=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.22,REQID:dbaaf889-9cf7-4ae0-8196-cbdfb40883aa,IP:0,U RL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:-5 X-CID-META: VersionHash:120426c,CLOUDID:3cb336b5-beed-4dfc-bd9c-e1b22fa6ccc4,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-UUID: 43bd0ea0d2c011eda9a90f0bb45854f4-20230404 Received: from mtkmbs11n2.mediatek.inc [(172.21.101.187)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 2043590714; Tue, 04 Apr 2023 16:11:13 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Tue, 4 Apr 2023 16:11:11 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Tue, 4 Apr 2023 16:11:10 +0800 From: Yunfei Dong To: Yunfei Dong , Chen-Yu Tsai , Nicolas Dufresne , Hans Verkuil , AngeloGioacchino Del Regno , Benjamin Gaignard , =?UTF-8?q?N=C3=ADcolas=20F=20=2E=20R=20=2E=20A=20=2E=20Prado?= CC: Matthias Brugger , Hsin-Yi Wang , Fritz Koenig , Daniel Vetter , Steve Cho , , , , , , Subject: [PATCH v4,8/8] media: mediatek: vcodec: Add dbgfs help function Date: Tue, 4 Apr 2023 16:11:02 +0800 Message-ID: <20230404081102.30713-9-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230404081102.30713-1-yunfei.dong@mediatek.com> References: <20230404081102.30713-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Getting dbgfs help information with command "echo -help > vdec". Signed-off-by: Yunfei Dong --- .../mediatek/vcodec/mtk_vcodec_dbgfs.c | 24 ++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c b/dr= ivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c index 237d0dc8a1fc..2372fc449b45 100644 --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c @@ -52,6 +52,23 @@ static void mtk_vdec_dbgfs_get_format_type(struct mtk_vc= odec_ctx *ctx, char *buf *used +=3D curr_len; } =20 +static void mtk_vdec_dbgfs_get_help(char *buf, int *used, int total) +{ + int curr_len; + + curr_len =3D snprintf(buf + *used, total - *used, + "help: (1: echo -'info' > vdec 2: cat vdec)\n"); + *used +=3D curr_len; + + curr_len =3D snprintf(buf + *used, total - *used, + "\t-picinfo: get resolution\n"); + *used +=3D curr_len; + + curr_len =3D snprintf(buf + *used, total - *used, + "\t-format: get output & capture queue format\n"); + *used +=3D curr_len; +} + static ssize_t mtk_vdec_dbgfs_write(struct file *filp, const char __user *= ubuf, size_t count, loff_t *ppos) { @@ -84,6 +101,11 @@ static ssize_t mtk_vdec_dbgfs_read(struct file *filp, c= har __user *ubuf, if (!buf) return -ENOMEM; =20 + if (strstr(dbgfs->dbgfs_buf, "-help")) { + mtk_vdec_dbgfs_get_help(buf, &used_len, total_len); + goto read_buffer; + } + if (strstr(dbgfs->dbgfs_buf, "-picinfo")) dbgfs_index[MTK_VDEC_DBGFS_PICINFO] =3D true; =20 @@ -110,7 +132,7 @@ static ssize_t mtk_vdec_dbgfs_read(struct file *filp, c= har __user *ubuf, mtk_vdec_dbgfs_get_format_type(ctx, buf, &used_len, total_len); } mutex_unlock(&dbgfs->dbgfs_lock); - +read_buffer: ret =3D simple_read_from_buffer(ubuf, count, ppos, buf, used_len); kfree(buf); return ret; --=20 2.18.0