From patchwork Tue Apr 26 07:02:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 12826544 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 317E4C433F5 for ; Tue, 26 Apr 2022 07:03:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343606AbiDZHGN (ORCPT ); Tue, 26 Apr 2022 03:06:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48122 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343605AbiDZHGM (ORCPT ); Tue, 26 Apr 2022 03:06:12 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9F80D6D4C0 for ; Tue, 26 Apr 2022 00:03:05 -0700 (PDT) Received: from deskari.lan (91-156-85-209.elisa-laajakaista.fi [91.156.85.209]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id C1EB3B2A; Tue, 26 Apr 2022 09:03:01 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1650956582; bh=7PKNIw9bu27CR8YSFttzwWz41EeUv2qUanCyC6XliCs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jHiN01gNxyGjTdnJcHSmyRKwya3DqQmmwAHZihiaOlx7XcPe4UmZlVktUEysSG+Tf QXkJryD/Tir0TJfA4XtsPpvp1+TJQEaYpPGI+QmyBhXQpBFtEO+i2PKH4Kuz6n+t2Q 4bwG+goO+vdBE+GyOrZfYf39ZlJ6mHlORzuattFk= From: Tomi Valkeinen To: linux-media@vger.kernel.org, sakari.ailus@linux.intel.com, Jacopo Mondi , Laurent Pinchart , niklas.soderlund+renesas@ragnatech.se, Mauro Carvalho Chehab , Hans Verkuil , Pratyush Yadav , satish.nagireddy@getcruise.com Cc: Tomi Valkeinen Subject: [PATCH v2 3/3] media: ti: cal: use frame desc to get vc and dt Date: Tue, 26 Apr 2022 10:02:40 +0300 Message-Id: <20220426070240.68100-4-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220426070240.68100-1-tomi.valkeinen@ideasonboard.com> References: <20220426070240.68100-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Use get_frame_desc() to get the frame desc from the connected source, and use the provided virtual channel and datatype instead of hardcoded ones. get_frame_desc() can contain multiple streams, but as we don't support multiple streams yet, we will just always use the first stream. If the source doesn't support get_frame_desc(), fall back to the previous method of always capturing virtual channel 0 and any datatype. Signed-off-by: Tomi Valkeinen Reviewed-by: Jacopo Mondi --- drivers/media/platform/ti/cal/cal-camerarx.c | 27 +++++++++++ drivers/media/platform/ti/cal/cal.c | 49 +++++++++++++++++++- drivers/media/platform/ti/cal/cal.h | 2 + 3 files changed, 76 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/ti/cal/cal-camerarx.c b/drivers/media/platform/ti/cal/cal-camerarx.c index 6b43a1525b45..e69fed117fea 100644 --- a/drivers/media/platform/ti/cal/cal-camerarx.c +++ b/drivers/media/platform/ti/cal/cal-camerarx.c @@ -583,6 +583,33 @@ static int cal_camerarx_parse_dt(struct cal_camerarx *phy) return ret; } +int cal_camerarx_get_remote_frame_desc(struct cal_camerarx *phy, + struct v4l2_mbus_frame_desc *desc) +{ + struct media_pad *pad; + int ret; + + if (!phy->source) + return -EPIPE; + + pad = media_entity_remote_pad(&phy->pads[CAL_CAMERARX_PAD_SINK]); + if (!pad) + return -EPIPE; + + ret = v4l2_subdev_call(phy->source, pad, get_frame_desc, pad->index, + desc); + if (ret) + return ret; + + if (desc->type != V4L2_MBUS_FRAME_DESC_TYPE_CSI2) { + dev_err(phy->cal->dev, + "Frame descriptor does not describe CSI-2 link"); + return -EINVAL; + } + + return 0; +} + /* ------------------------------------------------------------------ * V4L2 Subdev Operations * ------------------------------------------------------------------ diff --git a/drivers/media/platform/ti/cal/cal.c b/drivers/media/platform/ti/cal/cal.c index 4a4a6c5983f7..df66b8192349 100644 --- a/drivers/media/platform/ti/cal/cal.c +++ b/drivers/media/platform/ti/cal/cal.c @@ -469,10 +469,57 @@ static bool cal_ctx_wr_dma_stopped(struct cal_ctx *ctx) return stopped; } +static int +cal_get_remote_frame_desc_entry(struct cal_camerarx *phy, + struct v4l2_mbus_frame_desc_entry *entry) +{ + struct v4l2_mbus_frame_desc fd; + int ret; + + ret = cal_camerarx_get_remote_frame_desc(phy, &fd); + if (ret) { + if (ret != -ENOIOCTLCMD) + dev_err(phy->cal->dev, + "Failed to get remote frame desc: %d\n", ret); + return ret; + } + + if (fd.num_entries == 0) { + dev_err(phy->cal->dev, + "No streams found in the remote frame descriptor\n"); + + return -ENODEV; + } + + if (fd.num_entries > 1) + dev_dbg(phy->cal->dev, + "Multiple streams not supported in remote frame descriptor, using the first one\n"); + + *entry = fd.entry[0]; + + return 0; +} + int cal_ctx_prepare(struct cal_ctx *ctx) { + struct v4l2_mbus_frame_desc_entry entry; int ret; + ret = cal_get_remote_frame_desc_entry(ctx->phy, &entry); + + if (ret == -ENOIOCTLCMD) { + ctx->vc = 0; + ctx->datatype = CAL_CSI2_CTX_DT_ANY; + } else if (!ret) { + ctx_dbg(2, ctx, "Framedesc: len %u, vc %u, dt %#x\n", + entry.length, entry.bus.csi2.vc, entry.bus.csi2.dt); + + ctx->vc = entry.bus.csi2.vc; + ctx->datatype = entry.bus.csi2.dt; + } else { + return ret; + } + ctx->use_pix_proc = !ctx->fmtinfo->meta; if (ctx->use_pix_proc) { @@ -936,8 +983,6 @@ static struct cal_ctx *cal_ctx_create(struct cal_dev *cal, int inst) ctx->dma_ctx = inst; ctx->csi2_ctx = inst; ctx->cport = inst; - ctx->vc = 0; - ctx->datatype = CAL_CSI2_CTX_DT_ANY; ret = cal_ctx_v4l2_init(ctx); if (ret) diff --git a/drivers/media/platform/ti/cal/cal.h b/drivers/media/platform/ti/cal/cal.h index 527e22d022f3..61409ddced98 100644 --- a/drivers/media/platform/ti/cal/cal.h +++ b/drivers/media/platform/ti/cal/cal.h @@ -323,6 +323,8 @@ const struct cal_format_info *cal_format_by_code(u32 code); void cal_quickdump_regs(struct cal_dev *cal); +int cal_camerarx_get_remote_frame_desc(struct cal_camerarx *phy, + struct v4l2_mbus_frame_desc *desc); void cal_camerarx_disable(struct cal_camerarx *phy); void cal_camerarx_i913_errata(struct cal_camerarx *phy); struct cal_camerarx *cal_camerarx_create(struct cal_dev *cal,