From patchwork Tue Apr 4 08:11:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunfei Dong X-Patchwork-Id: 13199334 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 74B61C6FD1D for ; Tue, 4 Apr 2023 08:44:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id: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=leLjUL3g2N1WmfckiGkVST1ClRIGA4zvOJcFz6654Vc=; b=f9MZiR9jScSqLA LwOs7fOAwsl24NViOB/NSMVQWQkfNczt93+EqH6mk/7C2IxNHKe7MgpetEJDXVnAHOM/DQUBzylOd qquAqhWxd/p4gvdx/p5FJ3Kd1qwJOWy8tWDHY0cYzXLRyLNqEZb06i6OCBeEzQ5K6dDx0Bad7bmVM gYa16FMcEJCr4hAnUZzk98TUAeMxpTqDA+bBqMoX7cgKRnhoCTu3Ig9HRfWP1iFR1Ujw0SuM20tD5 PUHhA4P1QjFafn02uNz65apor+BtOW48uKs99pNc4YjXfEpuRRO7CpumUyPDc7N03OaiG70haLdSU x5yffikFs1YDvw8w18oQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pjcCF-000WtC-0T; Tue, 04 Apr 2023 08:39:19 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pjbzm-000TT5-28; Tue, 04 Apr 2023 08:26:48 +0000 X-UUID: 447ea682d2c011edb7d8d11f642b8e78-20230404 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:74eb2b57-f14e-4258-baa1-903ffb74199b,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:b771c4f7-ddba-41c3-91d9-10eeade8eac7,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: 447ea682d2c011edb7d8d11f642b8e78-20230404 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 827935948; Tue, 04 Apr 2023 01:11:14 -0700 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?= =?utf-8?q?_F_=2E_R_=2E_A_=2E_Prado?= 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 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230404_012642_996649_7C789950 X-CRM114-Status: GOOD ( 12.45 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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/drivers/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_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) { @@ -84,6 +101,11 @@ static ssize_t mtk_vdec_dbgfs_read(struct file *filp, char __user *ubuf, if (!buf) return -ENOMEM; + 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] = true; @@ -110,7 +132,7 @@ 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;