From patchwork Thu Oct 14 03:48:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jammy Huang X-Patchwork-Id: 12557715 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA802C433EF for ; Thu, 14 Oct 2021 03:52:06 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 76E9460200 for ; Thu, 14 Oct 2021 03:52:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 76E9460200 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aspeedtech.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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:To:From:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=AexjvTqeq2y4GcPAiTv19bT7uLM8jPav8ROI+tgG8RA=; b=syQEb56XDNT7Ok uy9udzxcedSM/JOoyUL9nRlVSfKbbTlOVoTDZcX2+dHpOKCRCpBEyC3vhodbKLrpO7UC2EgGZHKkX Og8711oOe064pZN7DF1p4DDbuW4TrlARyxKO//JVBNG4M9WKmwrYuLblexttSBwjL4n7YMZHxRbJC YE9yOVcnhq1HwUWru5Xi7Gf0vWokh6U0+9oWY6TvJqLTkV/XtK/ahg77YZ1QDQbkcVb6ervN2sm6v vi0NLpNvyMw1mxHqpBBrDtkjvwG0IiPnOOJLhIqaB8LMrfLGgVuq7I2rXaUMDH229v1Q5HGLp3nCB q+pPlu2F2/xMAal25o+w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1markm-001RY8-NH; Thu, 14 Oct 2021 03:50:00 +0000 Received: from twspam01.aspeedtech.com ([211.20.114.71]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1marki-001RUV-4h for linux-arm-kernel@lists.infradead.org; Thu, 14 Oct 2021 03:49:57 +0000 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 19E3QcPi006363; Thu, 14 Oct 2021 11:26:38 +0800 (GMT-8) (envelope-from jammy_huang@aspeedtech.com) Received: from JammyHuang-PC.aspeed.com (192.168.2.115) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 14 Oct 2021 11:48:16 +0800 From: Jammy Huang To: , , , , , , , , Subject: [PATCH 5/6] media: aspeed: add comments and macro Date: Thu, 14 Oct 2021 11:48:18 +0800 Message-ID: <20211014034819.2283-6-jammy_huang@aspeedtech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211014034819.2283-1-jammy_huang@aspeedtech.com> References: <20211014034819.2283-1-jammy_huang@aspeedtech.com> MIME-Version: 1.0 X-Originating-IP: [192.168.2.115] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 19E3QcPi006363 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211013_204956_457926_71872586 X-CRM114-Status: GOOD ( 13.23 ) 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 Add comments to describe video-stat and 'struct aspeed_video'. Add macro, ASPEED_VIDEO_V4L2_MIN_BUF_REQ, to describe the buffers needed. Signed-off-by: Jammy Huang --- drivers/media/platform/aspeed-video.c | 39 ++++++++++++++++++++++++--- 1 file changed, 36 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index 6b887fcaab7c..e1031fd09ac6 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -37,6 +37,8 @@ #define V4L2_CID_ASPEED_HQ_MODE (ASPEED_CID_CUSTOM_BASE + 3) #define V4L2_CID_ASPEED_HQ_JPEG_QUALITY (ASPEED_CID_CUSTOM_BASE + 4) +#define ASPEED_VIDEO_V4L2_MIN_BUF_REQ 3 + #define LOG_REG BIT(4) #define LOG_DEBUG BIT(3) #define LOG_TRACE BIT(2) @@ -213,6 +215,15 @@ #define VE_MEM_RESTRICT_START 0x310 #define VE_MEM_RESTRICT_END 0x314 +/* + * @VIDEO_MODE_DETECT_DONE: a flag raised if signal lock + * @VIDEO_RES_CHANGE: a flag raised if res_change work on-going + * @VIDEO_RES_DETECT: a flag raised if res. detection on-going + * @VIDEO_STREAMING: a flag raised if user requires stream-on + * @VIDEO_FRAME_INPRG: a flag raised if hw working on a frame + * @VIDEO_STOPPED: a flag raised if device release + * @VIDEO_CLOCKS_ON: a flag raised if clk is on + */ enum { VIDEO_MODE_DETECT_DONE, VIDEO_RES_CHANGE, @@ -245,6 +256,28 @@ struct aspeed_video_perf { #define to_aspeed_video_buffer(x) \ container_of((x), struct aspeed_video_buffer, vb) +/** + * struct aspeed_video - driver data + * + * @flags: holds the state of video + * @sequence: holds the last number of frame completed + * @max_compressed_size:holds max compressed stream's size + * @srcs: holds the buffer information for srcs + * @jpeg: holds the buffer information for jpeg header + * @bcd: holds the buffer information for bcd work + * @yuv420: a flag raised if JPEG subsampling is 420 + * @partial_jpeg: a flag raised if JPEG supports partial capture + * @hq_mode: a flag raised if HQ is enabled. Only for partial_jpeg + * @frame_rate: holds the frame_rate + * @jpeg_quality: holds jpeq's quality (0~11) + * @jpeg_hq_quality: holds hq's quality (0~11) only if hq_mode enabled + * @compression_mode: holds jpeg compression mode + * @frame_bottom: end position of video data in vertical direction + * @frame_left: start position of video data in horizontal direction + * @frame_right: end position of video data in horizontal direction + * @frame_top: start position of video data in vertical direction + * @perf: holds the statistics primary for debugfs + */ struct aspeed_video { void __iomem *base; struct clk *eclk; @@ -1250,7 +1283,7 @@ static int aspeed_video_get_parm(struct file *file, void *fh, struct aspeed_video *video = video_drvdata(file); a->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; - a->parm.capture.readbuffers = 3; + a->parm.capture.readbuffers = ASPEED_VIDEO_V4L2_MIN_BUF_REQ; a->parm.capture.timeperframe.numerator = 1; if (!video->frame_rate) a->parm.capture.timeperframe.denominator = MAX_FRAME_RATE; @@ -1267,7 +1300,7 @@ static int aspeed_video_set_parm(struct file *file, void *fh, struct aspeed_video *video = video_drvdata(file); a->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; - a->parm.capture.readbuffers = 3; + a->parm.capture.readbuffers = ASPEED_VIDEO_V4L2_MIN_BUF_REQ; if (a->parm.capture.timeperframe.numerator) frame_rate = a->parm.capture.timeperframe.denominator / @@ -1876,7 +1909,7 @@ static int aspeed_video_setup_video(struct aspeed_video *video) vbq->drv_priv = video; vbq->buf_struct_size = sizeof(struct aspeed_video_buffer); vbq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - vbq->min_buffers_needed = 3; + vbq->min_buffers_needed = ASPEED_VIDEO_V4L2_MIN_BUF_REQ; rc = vb2_queue_init(vbq); if (rc) {