From patchwork Sun Feb 27 16:01:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 12761912 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 31442C433F5 for ; Sun, 27 Feb 2022 16:02:04 +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=I0JZSGkHb0f17ORnmD1ygvCVKPCPwJJLvnUQZMztjTs=; b=wd2KYUk+u5Si8i 4oaMcTyXfHtevCxKCAAfgF0YVvCNb6CKeOZ1QXs2qSHsVFc/7jl16PptueaE1Ajc2iW7cP6UkBVDF VOLJOYBsdEXptO9fIcXp9biRp+6msHx77nkU0Ml9ovFl88IKj90OOHpud5z+VkXRKRalMAnYlgD+e vJzw9Tnn3PCQti1Xz4OAVzrxvAKGwtrl4tYZZbSe6vS8Aw2gft9Sw5qNAOzhxdFWvIgOlVgV9edAv Mb4n7/SqBYE8mRyn7kaovsziGSNzGVRGgBt9xlRUisLAQBCjx6U8xT7xXuWgUVvWs2LPxPlPktYnZ fs7C9TdQEb65ykYN545Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nOLzj-009dVl-LY; Sun, 27 Feb 2022 16:01:59 +0000 Received: from perceval.ideasonboard.com ([213.167.242.64]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nOLzT-009dCt-JB for linux-rockchip@lists.infradead.org; Sun, 27 Feb 2022 16:01:48 +0000 Received: from pendragon.lan (62-78-145-57.bb.dnainternet.fi [62.78.145.57]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 5078F993; Sun, 27 Feb 2022 17:01:40 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1645977700; bh=NhVNyN/Hqu9OJYLxGrtpiTI30hGwggbAJZF6AFwFqHk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RM7PG0xcggtVaFqTKWyG9+/TRyXumYmRVPIsJyCWDHj/2fL+V8Z91hBew9BrULkPE C653ji+fRON3vadibAKQRWh2jLxlahqaoSHx2kK0IwjD51JVeRvd+RbCuVLYGbzBSO 6HT/y9MUa/w0qYvBJbON643PQ6GOdTJFQxvnxVls= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Dafna Hirschfeld , Heiko Stuebner , Paul Elder , Tomasz Figa , linux-rockchip@lists.infradead.org Subject: [PATCH 14/16] media: rkisp1: debug: Add debugfs files to dump core and ISP registers Date: Sun, 27 Feb 2022 18:01:14 +0200 Message-Id: <20220227160116.18556-15-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220227160116.18556-1-laurent.pinchart@ideasonboard.com> References: <20220227160116.18556-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220227_080143_881010_B555A46E X-CRM114-Status: GOOD ( 11.28 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org It's useful to dumb the value of registers for debugging purpose. Add two debugfs files to dump key core and ISP registers. Signed-off-by: Laurent Pinchart --- .../platform/rockchip/rkisp1/rkisp1-debug.c | 65 +++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c index 8be4ac134cc9..c7872d8dc3df 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c @@ -16,6 +16,63 @@ #include "rkisp1-common.h" #include "rkisp1-regs.h" +struct rkisp1_debug_register { + u32 offset; + const char * const name; +}; + +#define RKISP1_DEBUG_REG(name) { RKISP1_CIF_##name, #name } + +static int rkisp1_debug_dump_regs(struct seq_file *m, + const struct rkisp1_debug_register *regs) +{ + struct rkisp1_device *rkisp1 = m->private; + u32 val; + + for ( ; regs->name; ++regs) { + val = rkisp1_read(rkisp1, regs->offset); + seq_printf(m, "%14s: 0x%08x\n", regs->name, val); + } + + return 0; +} + +static int rkisp1_debug_dump_core_regs_show(struct seq_file *m, void *p) +{ + static const struct rkisp1_debug_register registers[] = { + RKISP1_DEBUG_REG(VI_CCL), + RKISP1_DEBUG_REG(VI_ICCL), + RKISP1_DEBUG_REG(VI_IRCL), + RKISP1_DEBUG_REG(VI_DPCL), + RKISP1_DEBUG_REG(MI_CTRL), + RKISP1_DEBUG_REG(MI_BYTE_CNT), + RKISP1_DEBUG_REG(MI_CTRL_SHD), + RKISP1_DEBUG_REG(MI_RIS), + RKISP1_DEBUG_REG(MI_STATUS), + RKISP1_DEBUG_REG(MI_DMA_CTRL), + RKISP1_DEBUG_REG(MI_DMA_STATUS), + { /* Sentinel */ }, + }; + + return rkisp1_debug_dump_regs(m, registers); +} +DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_core_regs); + +static int rkisp1_debug_dump_isp_regs_show(struct seq_file *m, void *p) +{ + static const struct rkisp1_debug_register registers[] = { + RKISP1_DEBUG_REG(ISP_CTRL), + RKISP1_DEBUG_REG(ISP_ACQ_PROP), + RKISP1_DEBUG_REG(ISP_FLAGS_SHD), + RKISP1_DEBUG_REG(ISP_RIS), + RKISP1_DEBUG_REG(ISP_ERR), + { /* Sentinel */ }, + }; + + return rkisp1_debug_dump_regs(m, registers); +} +DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_isp_regs); + #define RKISP1_DEBUG_DATA_COUNT_BINS 32 #define RKISP1_DEBUG_DATA_COUNT_STEP (4096 / RKISP1_DEBUG_DATA_COUNT_BINS) @@ -60,6 +117,7 @@ DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_input_status); void rkisp1_debug_init(struct rkisp1_device *rkisp1) { struct rkisp1_debug *debug = &rkisp1->debug; + struct dentry *regs_dir; debug->debugfs_dir = debugfs_create_dir(dev_name(rkisp1->dev), NULL); @@ -88,6 +146,13 @@ void rkisp1_debug_init(struct rkisp1_device *rkisp1) &debug->frame_drop[RKISP1_SELFPATH]); debugfs_create_file("input_status", 0444, debug->debugfs_dir, rkisp1, &rkisp1_debug_input_status_fops); + + regs_dir = debugfs_create_dir("regs", debug->debugfs_dir); + + debugfs_create_file("core", 0444, regs_dir, rkisp1, + &rkisp1_debug_dump_core_regs_fops); + debugfs_create_file("isp", 0444, regs_dir, rkisp1, + &rkisp1_debug_dump_isp_regs_fops); } void rkisp1_debug_cleanup(struct rkisp1_device *rkisp1)