From patchwork Tue May 30 12:29:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunfei Dong X-Patchwork-Id: 13259916 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BC239C7EE23 for ; Tue, 30 May 2023 12:30:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=RRHVElMyL6UjQ1vvoJ2Fmm9xm1wJ7Rkni4XIZBAGM5Y=; b=4PWCADuvqNiKDXKaSXeLxzQFY5 TXfscjyUpqcjzoWBN6CEvCx952WKNc7k44OEwG4YYs1VGXs9STeSmteyvSJxk/z7X168JyLOeynSh RDfgTM1u1yBi+mH8HdHCknJTlDTSs/+kVyy8SR1WAkpBQAPkfzTzXmFuc3O7DuOm6rU7hxsDzNrcr /CIA3RuyN1h7+1ZY5/bGeZkk73TXtTVreSk1+GPQIm0Hks9YcCeaum3jyu9i1g4kcRoxKGp+Tj45b UXRmZhmWT87sLPrkkeuDjDnh/zX6U0NWVQu6+al13xHqPwZy1keu3sofgq3hDBPzpE2zg4brCa5Xf XMVaGoew==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q3yUS-00DrY2-0E; Tue, 30 May 2023 12:30:16 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q3yU5-00DrFc-0u; Tue, 30 May 2023 12:29:55 +0000 X-UUID: ab4d2cf2fee511ed83ed1395ce914268-20230530 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=RRHVElMyL6UjQ1vvoJ2Fmm9xm1wJ7Rkni4XIZBAGM5Y=; b=LLA02G9ZPFL7LQXajqa0uFHQm0pRLgrph/rw071Xm5c78qZG2SYcXGsmPFohIMMwQ9maq5XG3j/Uv9H1xReOry3oT4yD+gblxKH+Wr/M20Yeuz8W8dwrvgayHN4Hmx4zq+WWwAz+T96CQ45ckQtazu1+fpJgCB0eGoIV53CqnRc=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.25,REQID:58d22682-1a92-4187-b932-6f6c1e743320,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:d5b0ae3,CLOUDID:8ab0023d-7aa7-41f3-a6bd-0433bee822f3,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 X-CID-BAS: 0,_,0,_ X-UUID: ab4d2cf2fee511ed83ed1395ce914268-20230530 Received: from mtkmbs11n2.mediatek.inc [(172.21.101.187)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 336656805; Tue, 30 May 2023 05:29:49 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs13n2.mediatek.inc (172.21.101.108) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Tue, 30 May 2023 20:29:18 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Tue, 30 May 2023 20:29:17 +0800 From: Yunfei Dong To: Chen-Yu Tsai , Nicolas Dufresne , Hans Verkuil , AngeloGioacchino Del Regno , Benjamin Gaignard , =?utf-8?q?N=C3=ADcolas?= =?utf-8?q?_F_=2E_R_=2E_A_=2E_Prado?= , Nathan Hebert CC: Yunfei Dong , Hsin-Yi Wang , Fritz Koenig , Daniel Vetter , Steve Cho , , , , , , Subject: [PATCH v6,8/8] media: mediatek: vcodec: Add dbgfs help function Date: Tue, 30 May 2023 20:29:08 +0800 Message-ID: <20230530122908.19267-9-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530122908.19267-1-yunfei.dong@mediatek.com> References: <20230530122908.19267-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230530_052953_321677_1BED0077 X-CRM114-Status: GOOD ( 12.52 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Getting dbgfs help information with command "echo -help > vdec" or "echo > vdec". Signed-off-by: Yunfei Dong Reviewed-by: AngeloGioacchino Del Regno --- .../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/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c index 688884db651e..2151c3967684 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_vcodec_ctx *ctx, char *buf *used += curr_len; } +static void mtk_vdec_dbgfs_get_help(char *buf, int *used, int total) +{ + int curr_len; + + curr_len = snprintf(buf + *used, total - *used, + "help: (1: echo -'info' > vdec 2: cat vdec)\n"); + *used += curr_len; + + curr_len = snprintf(buf + *used, total - *used, + "\t-picinfo: get resolution\n"); + *used += curr_len; + + curr_len = snprintf(buf + *used, total - *used, + "\t-format: get output & capture queue format\n"); + *used += curr_len; +} + static ssize_t mtk_vdec_dbgfs_write(struct file *filp, const char __user *ubuf, size_t count, loff_t *ppos) { @@ -83,6 +100,11 @@ static ssize_t mtk_vdec_dbgfs_read(struct file *filp, char __user *ubuf, if (!buf) return -ENOMEM; + if (strstr(dbgfs->dbgfs_buf, "-help") || dbgfs->buf_size == 1) { + 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] = true; @@ -109,7 +131,7 @@ static ssize_t mtk_vdec_dbgfs_read(struct file *filp, char __user *ubuf, mtk_vdec_dbgfs_get_format_type(ctx, buf, &used_len, total_len); } mutex_unlock(&dbgfs->dbgfs_lock); - +read_buffer: ret = simple_read_from_buffer(ubuf, count, ppos, buf, used_len); kfree(buf); return ret;