From patchwork Thu May 25 02:12:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunfei Dong X-Patchwork-Id: 13254698 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 91C5BC7EE2E for ; Thu, 25 May 2023 02:12:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237213AbjEYCMu (ORCPT ); Wed, 24 May 2023 22:12:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34024 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235437AbjEYCMk (ORCPT ); Wed, 24 May 2023 22:12:40 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B19CD3; Wed, 24 May 2023 19:12:36 -0700 (PDT) X-UUID: 9a2c7740faa111ed9cb5633481061a41-20230525 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=eCqP2l+Kqdf5yUqoHyrwDaNfrpAvvcfVlREwKoCaOqs=; b=Qukh1Icz8GtFgzsd5Nfoj8eBlaUkVCe6WR4mBlWd0uehu8iI0QJAyfiJiaTW7Ut7uRZgm49yzJbR9fYenQtOBmien/a79T008xbZDE7TPRDrIGSRPIUUztbzVw2lGU5ZULYbthDZBplPnYJhlG7WhCDoLv9i82EAC/NFiunBgUM=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.25,REQID:7c52b6b6-d726-4dbb-856c-680af51c0394,IP:0,U RL:0,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:90 X-CID-INFO: VERSION:1.1.25,REQID:7c52b6b6-d726-4dbb-856c-680af51c0394,IP:0,URL :0,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Spam_GS981B3D,ACTIO N:quarantine,TS:90 X-CID-META: VersionHash:d5b0ae3,CLOUDID:0b2d473c-de1e-4348-bc35-c96f92f1dcbb,B ulkID:230525101232CBEBVDHU,BulkQuantity:0,Recheck:0,SF:48|38|29|28|17|19,T C:nil,Content:0,EDM:-3,IP:nil,URL: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: 9a2c7740faa111ed9cb5633481061a41-20230525 Received: from mtkmbs13n1.mediatek.inc [(172.21.101.193)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1004778313; Thu, 25 May 2023 10:12:30 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs11n1.mediatek.inc (172.21.101.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Thu, 25 May 2023 10:12:28 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Thu, 25 May 2023 10:12:28 +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 v5,8/8] media: mediatek: vcodec: Add dbgfs help function Date: Thu, 25 May 2023 10:12:19 +0800 Message-ID: <20230525021219.23638-9-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230525021219.23638-1-yunfei.dong@mediatek.com> References: <20230525021219.23638-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Getting dbgfs help information with command "echo -help > 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 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;