From patchwork Wed Feb 5 21:23:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sowjanya Komatineni X-Patchwork-Id: 11367187 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CD12114D5 for ; Wed, 5 Feb 2020 21:24:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A05572072B for ; Wed, 5 Feb 2020 21:24:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="DRIsnnsY" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727237AbgBEVX7 (ORCPT ); Wed, 5 Feb 2020 16:23:59 -0500 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:4134 "EHLO hqnvemgate26.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727491AbgBEVX6 (ORCPT ); Wed, 5 Feb 2020 16:23:58 -0500 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Wed, 05 Feb 2020 13:23:39 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Wed, 05 Feb 2020 13:23:53 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Wed, 05 Feb 2020 13:23:53 -0800 Received: from HQMAIL109.nvidia.com (172.20.187.15) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 5 Feb 2020 21:23:53 +0000 Received: from hqnvemgw03.nvidia.com (10.124.88.68) by HQMAIL109.nvidia.com (172.20.187.15) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Wed, 5 Feb 2020 21:23:53 +0000 Received: from skomatineni-linux.nvidia.com (Not Verified[10.2.167.216]) by hqnvemgw03.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Wed, 05 Feb 2020 13:23:52 -0800 From: Sowjanya Komatineni To: , , , , , , CC: , , , , Subject: [RFC PATCH v2 4/6] media: tegra: Add Tegra210 Video input driver Date: Wed, 5 Feb 2020 13:23:24 -0800 Message-ID: <1580937806-17376-5-git-send-email-skomatineni@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1580937806-17376-1-git-send-email-skomatineni@nvidia.com> References: <1580937806-17376-1-git-send-email-skomatineni@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1580937819; bh=unfXJMdPZwebjsYYxOZJ1ZJHHuNowduLGod5/Pt2pb4=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=DRIsnnsYJLWXjCFcpZ3+OpoiP+f8Nb/XXhtL9PXykrS/JZt+3Rdc0oPwm5VKt8xr+ 0ZgcX9Naq1C4UUsaqsx6kltZi2Ek9pifejBEjAUm1Epw2Z292zetEhR6SbXqW2PjF2 3uX1OSONXdrmq+kLVmJh4Y+kSkIxsxvjFguL9ydyce5eLd2fFcW50H65+mbE9zs8vO BwWegMfAlYMlWeykdwdOd/J8GhTjp4uzxeTBsb+kebith01hqhCcWotprgfGqcXcZX ysH6d9fRqimqKeb9d76sBcapoOrYshtK0bMy8vgo0/3aK10Gi3GKbXYuxu3STHoqVg KakRaXuxqIsKg== Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Tegra210 contains a powerful Video Input (VI) hardware controller which can support up to 6 MIPI CSI camera sensors. Each Tegra CSI port can be one-to-one mapped to VI channel and can capture from an external camera sensor connected to CSI or from built-in test pattern generator. Tegra210 supports built-in test pattern generator from CSI to VI. This patch adds a V4L2 media controller and capture driver support for Tegra210 built-in CSI to VI test pattern generator. Signed-off-by: Sowjanya Komatineni --- drivers/staging/media/Kconfig | 2 + drivers/staging/media/Makefile | 1 + drivers/staging/media/tegra/Kconfig | 10 + drivers/staging/media/tegra/Makefile | 8 + drivers/staging/media/tegra/TODO | 10 + drivers/staging/media/tegra/tegra-common.h | 237 +++++++ drivers/staging/media/tegra/tegra-csi.c | 374 +++++++++++ drivers/staging/media/tegra/tegra-csi.h | 116 ++++ drivers/staging/media/tegra/tegra-vi.c | 998 +++++++++++++++++++++++++++++ drivers/staging/media/tegra/tegra-vi.h | 82 +++ drivers/staging/media/tegra/tegra-video.c | 118 ++++ drivers/staging/media/tegra/tegra-video.h | 32 + drivers/staging/media/tegra/tegra210.c | 698 ++++++++++++++++++++ drivers/staging/media/tegra/tegra210.h | 190 ++++++ 14 files changed, 2876 insertions(+) create mode 100644 drivers/staging/media/tegra/Kconfig create mode 100644 drivers/staging/media/tegra/Makefile create mode 100644 drivers/staging/media/tegra/TODO create mode 100644 drivers/staging/media/tegra/tegra-common.h create mode 100644 drivers/staging/media/tegra/tegra-csi.c create mode 100644 drivers/staging/media/tegra/tegra-csi.h create mode 100644 drivers/staging/media/tegra/tegra-vi.c create mode 100644 drivers/staging/media/tegra/tegra-vi.h create mode 100644 drivers/staging/media/tegra/tegra-video.c create mode 100644 drivers/staging/media/tegra/tegra-video.h create mode 100644 drivers/staging/media/tegra/tegra210.c create mode 100644 drivers/staging/media/tegra/tegra210.h diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig index c394abffea86..f063511ad4e4 100644 --- a/drivers/staging/media/Kconfig +++ b/drivers/staging/media/Kconfig @@ -32,6 +32,8 @@ source "drivers/staging/media/omap4iss/Kconfig" source "drivers/staging/media/sunxi/Kconfig" +source "drivers/staging/media/tegra/Kconfig" + source "drivers/staging/media/tegra-vde/Kconfig" source "drivers/staging/media/ipu3/Kconfig" diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile index ea9fce8014bb..d696d059be09 100644 --- a/drivers/staging/media/Makefile +++ b/drivers/staging/media/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx/ obj-$(CONFIG_VIDEO_MESON_VDEC) += meson/vdec/ obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/ obj-$(CONFIG_VIDEO_SUNXI) += sunxi/ +obj-$(CONFIG_VIDEO_TEGRA) += tegra/ obj-$(CONFIG_TEGRA_VDE) += tegra-vde/ obj-$(CONFIG_VIDEO_HANTRO) += hantro/ obj-$(CONFIG_VIDEO_IPU3_IMGU) += ipu3/ diff --git a/drivers/staging/media/tegra/Kconfig b/drivers/staging/media/tegra/Kconfig new file mode 100644 index 000000000000..e54d1baf2fbf --- /dev/null +++ b/drivers/staging/media/tegra/Kconfig @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0-only +config VIDEO_TEGRA + tristate "NVIDIA Tegra VI driver" + depends on ARCH_TEGRA || (ARM && COMPILE_TEST) + depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API + depends on MEDIA_CONTROLLER + select TEGRA_HOST1X + select VIDEOBUF2_DMA_CONTIG + help + Say yes here to enable support for Tegra video input hardware diff --git a/drivers/staging/media/tegra/Makefile b/drivers/staging/media/tegra/Makefile new file mode 100644 index 000000000000..488c6efec317 --- /dev/null +++ b/drivers/staging/media/tegra/Makefile @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0 +tegra-video-y := \ + tegra-video.o \ + tegra-vi.o \ + tegra-csi.o \ + tegra210.o + +obj-$(CONFIG_VIDEO_TEGRA) += tegra-video.o diff --git a/drivers/staging/media/tegra/TODO b/drivers/staging/media/tegra/TODO new file mode 100644 index 000000000000..d7d64b13535e --- /dev/null +++ b/drivers/staging/media/tegra/TODO @@ -0,0 +1,10 @@ +TODO list +* Currently driver supports Tegra build-in TPG Only with direct media links from CSI to VI. + Update the driver to do TPG Vs Sensor media links based on the kernel config CONFIG_VIDEO_TEGRA_TPG. +* Add real camera sensor capture support +* Add RAW10 packed video format support to Tegra210 video formats +* Add Tegra CSI MIPI pads calibration +* Add MIPI clock Settle time computation based on the data rate +* Add support for Ganged mode +* Make sure v4l2-compliance tests pass with all of the above implementations. +* Add SMMU support for VI to avoid cma_alloc failures with higher resolutions of some video formats. diff --git a/drivers/staging/media/tegra/tegra-common.h b/drivers/staging/media/tegra/tegra-common.h new file mode 100644 index 000000000000..9e37a54b97a6 --- /dev/null +++ b/drivers/staging/media/tegra/tegra-common.h @@ -0,0 +1,237 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 NVIDIA CORPORATION. All rights reserved. + */ + +#ifndef __TEGRA_COMMON_H__ +#define __TEGRA_COMMON_H__ + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "tegra-vi.h" +#include "tegra-csi.h" + +#define TEGRA_MIN_WIDTH 32U +#define TEGRA_MAX_WIDTH 32768U +#define TEGRA_MIN_HEIGHT 32U +#define TEGRA_MAX_HEIGHT 32768U + +#define TEGRA_DEF_WIDTH 1920 +#define TEGRA_DEF_HEIGHT 1080 +#define TEGRA_IMAGE_FORMAT_DEF 32 + +#define MAX_FORMAT_NUM 64 + +/* + * VI channel input data type enum. + * These data type enum value gets programmed into corresponding Tegra VI + * channel register bits. + */ +enum tegra_image_dt { + TEGRA_IMAGE_DT_YUV420_8 = 24, + TEGRA_IMAGE_DT_YUV420_10, + + TEGRA_IMAGE_DT_YUV420CSPS_8 = 28, + TEGRA_IMAGE_DT_YUV420CSPS_10, + TEGRA_IMAGE_DT_YUV422_8, + TEGRA_IMAGE_DT_YUV422_10, + TEGRA_IMAGE_DT_RGB444, + TEGRA_IMAGE_DT_RGB555, + TEGRA_IMAGE_DT_RGB565, + TEGRA_IMAGE_DT_RGB666, + TEGRA_IMAGE_DT_RGB888, + + TEGRA_IMAGE_DT_RAW6 = 40, + TEGRA_IMAGE_DT_RAW7, + TEGRA_IMAGE_DT_RAW8, + TEGRA_IMAGE_DT_RAW10, + TEGRA_IMAGE_DT_RAW12, + TEGRA_IMAGE_DT_RAW14, +}; + +/* + * Pixel memory format enum for Tegra VI channel. + * These format enum value gets programmed into corresponding Tegra VI + * channel register bits. + */ +enum tegra_image_format { + TEGRA_IMAGE_FORMAT_T_L8 = 16, + + TEGRA_IMAGE_FORMAT_T_R16_I = 32, + TEGRA_IMAGE_FORMAT_T_B5G6R5, + TEGRA_IMAGE_FORMAT_T_R5G6B5, + TEGRA_IMAGE_FORMAT_T_A1B5G5R5, + TEGRA_IMAGE_FORMAT_T_A1R5G5B5, + TEGRA_IMAGE_FORMAT_T_B5G5R5A1, + TEGRA_IMAGE_FORMAT_T_R5G5B5A1, + TEGRA_IMAGE_FORMAT_T_A4B4G4R4, + TEGRA_IMAGE_FORMAT_T_A4R4G4B4, + TEGRA_IMAGE_FORMAT_T_B4G4R4A4, + TEGRA_IMAGE_FORMAT_T_R4G4B4A4, + + TEGRA_IMAGE_FORMAT_T_A8B8G8R8 = 64, + TEGRA_IMAGE_FORMAT_T_A8R8G8B8, + TEGRA_IMAGE_FORMAT_T_B8G8R8A8, + TEGRA_IMAGE_FORMAT_T_R8G8B8A8, + TEGRA_IMAGE_FORMAT_T_A2B10G10R10, + TEGRA_IMAGE_FORMAT_T_A2R10G10B10, + TEGRA_IMAGE_FORMAT_T_B10G10R10A2, + TEGRA_IMAGE_FORMAT_T_R10G10B10A2, + + TEGRA_IMAGE_FORMAT_T_A8Y8U8V8 = 193, + TEGRA_IMAGE_FORMAT_T_V8U8Y8A8, + + TEGRA_IMAGE_FORMAT_T_A2Y10U10V10 = 197, + TEGRA_IMAGE_FORMAT_T_V10U10Y10A2, + TEGRA_IMAGE_FORMAT_T_Y8_U8__Y8_V8, + TEGRA_IMAGE_FORMAT_T_Y8_V8__Y8_U8, + TEGRA_IMAGE_FORMAT_T_U8_Y8__V8_Y8, + TEGRA_IMAGE_FORMAT_T_V8_Y8__U8_Y8, + + TEGRA_IMAGE_FORMAT_T_Y8__U8__V8_N444 = 224, + TEGRA_IMAGE_FORMAT_T_Y8__U8V8_N444, + TEGRA_IMAGE_FORMAT_T_Y8__V8U8_N444, + TEGRA_IMAGE_FORMAT_T_Y8__U8__V8_N422, + TEGRA_IMAGE_FORMAT_T_Y8__U8V8_N422, + TEGRA_IMAGE_FORMAT_T_Y8__V8U8_N422, + TEGRA_IMAGE_FORMAT_T_Y8__U8__V8_N420, + TEGRA_IMAGE_FORMAT_T_Y8__U8V8_N420, + TEGRA_IMAGE_FORMAT_T_Y8__V8U8_N420, + TEGRA_IMAGE_FORMAT_T_X2LC10LB10LA10, + TEGRA_IMAGE_FORMAT_T_A2R6R6R6R6R6, +}; + +/** + * struct tegra_video_format - Tegra video format description + * @img_dt: image data type + * @bit_width: format width in bits per component + * @code: media bus format code + * @bpp: bytes per pixel (when stored in memory) + * @img_fmt: image format + * @fourcc: V4L2 pixel format FCC identifier + */ +struct tegra_video_format { + enum tegra_image_dt img_dt; + unsigned int bit_width; + unsigned int code; + unsigned int bpp; + u32 img_fmt; + u32 fourcc; +}; + +#define TEGRA_VIDEO_FORMAT(DATA_TYPE, BIT_WIDTH, MBUS_CODE, BPP, \ + FORMAT, FOURCC) \ +{ \ + TEGRA_IMAGE_DT_##DATA_TYPE, \ + BIT_WIDTH, \ + MEDIA_BUS_FMT_##MBUS_CODE, \ + BPP, \ + TEGRA_IMAGE_FORMAT_##FORMAT, \ + V4L2_PIX_FMT_##FOURCC, \ +} + +enum tegra_vi_pg_mode { + TEGRA_VI_PG_DISABLED = 0, + TEGRA_VI_PG_DIRECT, + TEGRA_VI_PG_PATCH, +}; + +/** + * struct tegra_vi_channel - Tegra video channel + * @list: list head for this entry + * @video: V4L2 video device associated with the video channel + * @video_lock: protects the @format and @queue fields + * @pad: media pad for the video device entity + * + * @vi: composite device DT node port number for the channel + * @sp: host1x syncpoint pointer + * + * @kthread_capture_start: capture start kthread of this video channel + * @start_wait: wait queue used by capture start kthread + * @kthread_capture_done: capture done kthread of this video channel + * @done_wait: wait queue used by capture done kthread + * + * @format: active V4L2 pixel format + * @fmtinfo: format information corresponding to the active @format + * @queue: vb2 buffers queue + * @sequence: V4L2 buffers sequence number + * + * @capture: list of queued buffers for capture + * @start_lock: protects the capture queued list + * @done: list of capture done queued buffers + * @done_lock: protects the capture done queue list + * + * @portno: CSI port number of this video channel + * + * @ctrl_handler: V4L2 control handler of this video channel + * @tpg_fmts_bitmap: a bitmap for supported TPG formats + * @pg_mode: test pattern generator mode (disabled/direct/patch) + */ +struct tegra_vi_channel { + struct list_head list; + struct video_device video; + /* protects the @format and @queue fields */ + struct mutex video_lock; + struct media_pad pad; + + struct tegra_vi *vi; + struct host1x_syncpt *sp; + + struct task_struct *kthread_capture_start; + wait_queue_head_t start_wait; + struct task_struct *kthread_capture_done; + wait_queue_head_t done_wait; + + struct v4l2_pix_format format; + const struct tegra_video_format *fmtinfo; + struct vb2_queue queue; + u32 sequence; + + struct list_head capture; + /* protects the capture queued list */ + spinlock_t start_lock; + struct list_head done; + /* protects the capture done queue list */ + spinlock_t done_lock; + + unsigned char portno; + + struct v4l2_ctrl_handler ctrl_handler; + DECLARE_BITMAP(tpg_fmts_bitmap, MAX_FORMAT_NUM); + enum tegra_vi_pg_mode pg_mode; +}; + +/** + * struct tegra_channel_buffer - video channel buffer + * @buf: vb2 buffer base object + * @queue: buffer list entry in the channel queued buffers list + * @chan: channel that uses the buffer + * @addr: Tegra IOVA buffer address for VI output + */ +struct tegra_channel_buffer { + struct tegra_vi_channel *chan; + struct vb2_v4l2_buffer buf; + struct list_head queue; + dma_addr_t addr; +}; + +int tegra_channel_init(struct tegra_vi_channel *chan); +int tegra_channel_setup_ctrl_handler(struct tegra_vi_channel *chan); +int tegra_channel_cleanup(struct tegra_vi_channel *chan); +int tegra_channel_set_stream(struct tegra_vi_channel *chan, bool on); +void tegra_channel_queued_buf_done(struct tegra_vi_channel *chan, + enum vb2_buffer_state state); +int tegra_channel_csi_error_status(struct tegra_vi_channel *chan); + +#endif diff --git a/drivers/staging/media/tegra/tegra-csi.c b/drivers/staging/media/tegra/tegra-csi.c new file mode 100644 index 000000000000..966f0eee57fa --- /dev/null +++ b/drivers/staging/media/tegra/tegra-csi.c @@ -0,0 +1,374 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2020 NVIDIA CORPORATION. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "tegra-video.h" +#include "tegra-common.h" +#include "tegra-csi.h" + +static inline struct tegra_csi * +host1x_client_to_csi(struct host1x_client *client) +{ + return container_of(client, struct tegra_csi, client); +} + +static inline struct tegra_csi_channel *to_csi_chan(struct v4l2_subdev *subdev) +{ + return container_of(subdev, struct tegra_csi_channel, subdev); +} + +/* + * Only use this subdevice media bus ops for test pattern generator, + * because CSI device is an separated subdevice which has 6 source + * pads to generate test pattern. + */ +static struct v4l2_mbus_framefmt tegra_csi_tpg_fmts[] = { + { + TEGRA_DEF_WIDTH, + TEGRA_DEF_HEIGHT, + MEDIA_BUS_FMT_SRGGB10_1X10, + V4L2_FIELD_NONE, + V4L2_COLORSPACE_SRGB + }, + { + TEGRA_DEF_WIDTH, + TEGRA_DEF_HEIGHT, + MEDIA_BUS_FMT_RGB888_1X32_PADHI, + V4L2_FIELD_NONE, + V4L2_COLORSPACE_SRGB + } + +}; + +static struct v4l2_frmsize_discrete tegra_csi_tpg_sizes[] = { + {1280, 720}, + {1920, 1080}, + {3840, 2160}, +}; + +/* + * V4L2 Subdevice Video Operations + */ +static int tegra_csi_s_stream(struct v4l2_subdev *subdev, int enable) +{ + struct tegra_csi_channel *csi_chan = to_csi_chan(subdev); + struct tegra_csi *csi = csi_chan->csi; + struct tegra_vi_channel *chan = subdev->host_priv; + + return csi->ops->csi_streaming(csi_chan, chan->pg_mode, enable); +} + +/* + * V4L2 Subdevice Pad Operations + */ + +static int tegra_csi_enum_bus_code(struct v4l2_subdev *subdev, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->index >= ARRAY_SIZE(tegra_csi_tpg_fmts)) + return -EINVAL; + + code->code = tegra_csi_tpg_fmts[code->index].code; + return 0; +} + +static int tegra_csi_get_format(struct v4l2_subdev *subdev, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct tegra_csi_channel *csi_chan = to_csi_chan(subdev); + + fmt->format = csi_chan->format; + return 0; +} + +static void tegra_csi_try_mbus_fmt(struct v4l2_subdev *subdev, + struct v4l2_mbus_framefmt *mfmt) +{ + struct tegra_csi_channel *csi_chan = to_csi_chan(subdev); + struct tegra_csi *csi = csi_chan->csi; + const struct v4l2_frmsize_discrete *sizes; + unsigned int i, j; + + for (i = 0; i < ARRAY_SIZE(tegra_csi_tpg_fmts); i++) { + struct v4l2_mbus_framefmt *mbus_fmt = &tegra_csi_tpg_fmts[i]; + + if (mfmt->code == mbus_fmt->code) { + for (j = 0; j < ARRAY_SIZE(tegra_csi_tpg_sizes); j++) { + sizes = &tegra_csi_tpg_sizes[j]; + if (mfmt->width == sizes->width && + mfmt->height == sizes->height) { + return; + } + } + } + } + + dev_dbg(csi->dev, "using Tegra default format SRGGB10 1920x1080\n"); + *mfmt = tegra_csi_tpg_fmts[0]; +} + +static int tegra_csi_set_format(struct v4l2_subdev *subdev, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct tegra_csi_channel *csi_chan = to_csi_chan(subdev); + struct v4l2_mbus_framefmt *format = &fmt->format; + + tegra_csi_try_mbus_fmt(subdev, format); + + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) + return 0; + + csi_chan->format = *format; + return 0; +} + +/* + * V4L2 Subdevice Operations + */ +static struct v4l2_subdev_video_ops tegra_csi_video_ops = { + .s_stream = tegra_csi_s_stream, +}; + +static struct v4l2_subdev_pad_ops tegra_csi_pad_ops = { + .enum_mbus_code = tegra_csi_enum_bus_code, + .get_fmt = tegra_csi_get_format, + .set_fmt = tegra_csi_set_format, + .link_validate = v4l2_subdev_link_validate_default, +}; + +static struct v4l2_subdev_ops tegra_csi_ops = { + .video = &tegra_csi_video_ops, + .pad = &tegra_csi_pad_ops, +}; + +/* + * Media Operations + */ +static const struct media_entity_operations tegra_csi_media_ops = { + .link_validate = v4l2_subdev_link_validate, +}; + +static int tegra_csi_tpg_channels_alloc(struct tegra_csi *csi) +{ + struct device_node *node = csi->dev->of_node; + unsigned int port_num; + int ret; + struct tegra_csi_channel *item; + unsigned int tpg_channels = csi->soc->csi_max_channels; + + /* allocate CSI channel for each CSI x2 ports */ + for (port_num = 0; port_num < tpg_channels; port_num++) { + item = devm_kzalloc(csi->dev, sizeof(*item), GFP_KERNEL); + if (!item) { + ret = -ENOMEM; + goto error; + } + + list_add_tail(&item->list, &csi->csi_chans); + item->csi = csi; + item->csi_port_num = port_num; + item->numlanes = 2; + item->of_node = node; + item->numpads = 1; + item->pads[0].flags = MEDIA_PAD_FL_SOURCE; + } + + return 0; + +error: + list_for_each_entry(item, &csi->csi_chans, list) + list_del(&item->list); + return ret; +} + +static int tegra_csi_channel_init(struct tegra_csi_channel *chan) +{ + struct tegra_csi *csi = chan->csi; + struct v4l2_subdev *subdev; + int ret; + + /* initialize the default format */ + chan->format.code = MEDIA_BUS_FMT_SRGGB10_1X10; + chan->format.field = V4L2_FIELD_NONE; + chan->format.colorspace = V4L2_COLORSPACE_SRGB; + chan->format.width = TEGRA_DEF_WIDTH; + chan->format.height = TEGRA_DEF_HEIGHT; + + /* initialize V4L2 subdevice and media entity */ + subdev = &chan->subdev; + v4l2_subdev_init(subdev, &tegra_csi_ops); + subdev->dev = csi->dev; + snprintf(subdev->name, V4L2_SUBDEV_NAME_SIZE, "%s-%d", "tpg", + chan->csi_port_num); + + v4l2_set_subdevdata(subdev, chan); + subdev->fwnode = of_fwnode_handle(chan->of_node); + subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + subdev->entity.ops = &tegra_csi_media_ops; + subdev->entity.function = MEDIA_ENT_F_CAM_SENSOR; + + /* initialize media entity pads */ + ret = media_entity_pads_init(&subdev->entity, chan->numpads, + chan->pads); + if (ret < 0) + return ret; + + ret = v4l2_async_register_subdev(subdev); + if (ret < 0) { + dev_err(csi->dev, "failed to register subdev: %d\n", ret); + media_entity_cleanup(&subdev->entity); + } + + return ret; +} + +void tegra_csi_error_status(struct v4l2_subdev *subdev) +{ + struct tegra_csi_channel *csi_chan = to_csi_chan(subdev); + struct tegra_csi *csi = csi_chan->csi; + + csi->ops->csi_err_status(csi_chan); +} + +static int tegra_csi_init(struct host1x_client *client) +{ + struct tegra_csi *csi = host1x_client_to_csi(client); + struct tegra_video_device *vid = dev_get_drvdata(client->host); + struct tegra_csi_channel *item; + int ret; + + vid->csi = csi; + + INIT_LIST_HEAD(&csi->csi_chans); + + ret = tegra_csi_tpg_channels_alloc(csi); + if (ret < 0) + return ret; + + list_for_each_entry(item, &csi->csi_chans, list) { + ret = tegra_csi_channel_init(item); + if (ret) + return ret; + } + + ret = csi->ops->hw_init(csi); + if (ret) + return ret; + + return 0; +} + +static int tegra_csi_exit(struct host1x_client *client) +{ + struct tegra_video_device *vid = dev_get_drvdata(client->host); + struct v4l2_subdev *subdev; + struct tegra_csi_channel *chan; + + if (!vid->csi) + return 0; + + list_for_each_entry(chan, &vid->csi->csi_chans, list) { + subdev = &chan->subdev; + media_entity_cleanup(&subdev->entity); + v4l2_async_unregister_subdev(subdev); + } + + return 0; +} + +static const struct host1x_client_ops csi_client_ops = { + .init = tegra_csi_init, + .exit = tegra_csi_exit, +}; + +static int tegra_csi_probe(struct platform_device *pdev) +{ + struct tegra_csi *csi; + struct resource *res; + int ret; + + csi = devm_kzalloc(&pdev->dev, sizeof(*csi), GFP_KERNEL); + if (!csi) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + csi->iomem = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(csi->iomem)) + return PTR_ERR(csi->iomem); + + csi->soc = of_device_get_match_data(&pdev->dev); + if (!csi->soc) + return -ENODATA; + + csi->dev = &pdev->dev; + csi->ops = csi->soc->ops; + platform_set_drvdata(pdev, csi); + + /* initialize host1x interface */ + INIT_LIST_HEAD(&csi->client.list); + csi->client.ops = &csi_client_ops; + csi->client.dev = &pdev->dev; + + ret = host1x_client_register(&csi->client); + if (ret < 0) { + dev_err(csi->dev, "failed to register host1x client: %d\n", + ret); + return -ENODEV; + } + + return 0; +} + +static int tegra_csi_remove(struct platform_device *pdev) +{ + struct tegra_csi *csi = platform_get_drvdata(pdev); + + host1x_client_unregister(&csi->client); + return 0; +} + +static const struct tegra_csi_ops tegra210_csi_ops = { + .hw_init = tegra210_csi_hw_init, + .csi_streaming = tegra210_csi_streaming, + .csi_err_status = tegra210_csi_error_status, +}; + +static struct tegra_csi_soc tegra210_csi_soc = { + .ops = &tegra210_csi_ops, + .cil_max_clk_hz = 102000000, + .csi_max_channels = 6, +}; + +static const struct of_device_id tegra_csi_of_id_table[] = { + { .compatible = "nvidia,tegra210-csi", .data = &tegra210_csi_soc }, + { } +}; +MODULE_DEVICE_TABLE(of, tegra_csi_of_id_table); + +struct platform_driver tegra_csi_driver = { + .driver = { + .name = "tegra-csi", + .of_match_table = tegra_csi_of_id_table, + }, + .probe = tegra_csi_probe, + .remove = tegra_csi_remove, +}; + +MODULE_AUTHOR("Sowjanya Komatineni "); +MODULE_DESCRIPTION("NVIDIA Tegra CSI Device Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/staging/media/tegra/tegra-csi.h b/drivers/staging/media/tegra/tegra-csi.h new file mode 100644 index 000000000000..e42b6ea7378f --- /dev/null +++ b/drivers/staging/media/tegra/tegra-csi.h @@ -0,0 +1,116 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 NVIDIA CORPORATION. All rights reserved. + */ + +#ifndef __TEGRA_CSI_H__ +#define __TEGRA_CSI_H__ + +#include +#include +#include +#include +#include +#include +#include + +/* + * Each CSI brick supports max of 4 lanes that can be used as either + * one x4 port using both CILA and CILB partitions of a CSI brick or can + * be used as two x2 ports with one x2 from CILA and the other x2 from + * CILB. + */ +#define CSI_PORTS_PER_BRICK 2 + +/* each CSI channel can have one sink and one source pads */ +#define TEGRA_CSI_PADS_NUM 2 + +enum tegra_csi_cil_port { + PORT_A = 0, + PORT_B, +}; + +enum tegra_csi_block { + CSI_CIL_AB = 0, + CSI_CIL_CD, + CSI_CIL_EF, +}; + +struct tegra_csi; + +struct tegra_csi_channel { + struct list_head list; + struct v4l2_subdev subdev; + struct media_pad pads[TEGRA_CSI_PADS_NUM]; + struct device_node *of_node; + struct tegra_csi *csi; + unsigned int numlanes; + unsigned int numpads; + u8 csi_port_num; + + /* one pair of sink/source pad has one format */ + struct v4l2_mbus_framefmt format; +}; + +struct tegra_csi_ops { + int (*hw_init)(struct tegra_csi *csi); + int (*csi_streaming)(struct tegra_csi_channel *csi_chan, u8 pg_mode, + int enable); + void (*csi_err_status)(struct tegra_csi_channel *csi_chan); +}; + +/** + * struct tegra_csi_soc - NVIDIA Tegra CSI SoC structure + * @ops: csi operations + * @cil_max_clk_hz: cil clock max frequency + * @csi_max_channels: supported max streaming channels + */ +struct tegra_csi_soc { + const struct tegra_csi_ops *ops; + unsigned int cil_max_clk_hz; + unsigned int csi_max_channels; +}; + +/** + * struct tegra_csi - NVIDIA Tegra CSI device structure + * @dev: device struct + * @client: host1x_client struct + * + * @iomem: register base + * @csi_clk: clock for CSI + * @cilab_clk: clock for CIL AB + * @cilcd_clk: clock for CIL CD + * @cilef_clk: clock for CIL EF + * @tpg_clk: clock for internal CSI TPG logic + * + * @soc: pointer to SoC data structure + * @ops: csi operations + * + * @channels: list head for CSI channels + */ +struct tegra_csi { + struct device *dev; + struct host1x_client client; + + void __iomem *iomem; + struct clk *csi_clk; + struct clk *cilab_clk; + struct clk *cilcd_clk; + struct clk *cilef_clk; + struct clk *tpg_clk; + atomic_t clk_refcnt; + + const struct tegra_csi_soc *soc; + const struct tegra_csi_ops *ops; + + struct list_head csi_chans; +}; + +void tegra_csi_error_status(struct v4l2_subdev *subdev); + +void tegra210_csi_error_status(struct tegra_csi_channel *csi_chan); +int tegra210_csi_streaming(struct tegra_csi_channel *csi_chan, u8 pg_mode, + int enable); +int tegra210_csi_hw_init(struct tegra_csi *csi); + +#endif diff --git a/drivers/staging/media/tegra/tegra-vi.c b/drivers/staging/media/tegra/tegra-vi.c new file mode 100644 index 000000000000..619c0b3191e2 --- /dev/null +++ b/drivers/staging/media/tegra/tegra-vi.c @@ -0,0 +1,998 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2020 NVIDIA CORPORATION. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include "tegra-video.h" +#include "tegra-common.h" +#include "tegra-vi.h" + +#define SURFACE_ALIGN_BYTES 64 +#define MAX_CID_CONTROLS 1 + +static const struct tegra_video_format tegra_default_format = { + .img_dt = TEGRA_IMAGE_DT_RAW10, + .bit_width = 10, + .code = MEDIA_BUS_FMT_SRGGB10_1X10, + .bpp = 2, + .img_fmt = TEGRA_IMAGE_FORMAT_DEF, + .fourcc = V4L2_PIX_FMT_SRGGB10, +}; + +static inline struct tegra_vi * +host1x_client_to_vi(struct host1x_client *client) +{ + return container_of(client, struct tegra_vi, client); +} + +static inline +struct tegra_vi_channel *to_tegra_vi_channel(struct video_device *vdev) +{ + return container_of(vdev, struct tegra_vi_channel, video); +} + +static inline struct tegra_channel_buffer * +to_tegra_channel_buffer(struct vb2_v4l2_buffer *vb) +{ + return container_of(vb, struct tegra_channel_buffer, buf); +} + +static int tegra_get_format_idx_by_code(struct tegra_vi *vi, + unsigned int code) +{ + unsigned int i; + + for (i = 0; i < vi->soc->nformats; ++i) { + if (vi->soc->video_formats[i].code == code) + return i; + } + + return -1; +} + +static u32 tegra_get_format_fourcc_by_idx(struct tegra_vi *vi, + unsigned int index) +{ + if (index >= vi->soc->nformats) + return -EINVAL; + + return vi->soc->video_formats[index].fourcc; +} + +static const struct tegra_video_format * +tegra_get_format_by_fourcc(struct tegra_vi *vi, u32 fourcc) +{ + unsigned int i; + + for (i = 0; i < vi->soc->nformats; ++i) { + if (vi->soc->video_formats[i].fourcc == fourcc) + return &vi->soc->video_formats[i]; + } + + return NULL; +} + +/* VI only support 2 formats in TPG mode */ +static void vi_tpg_fmts_bitmap_init(struct tegra_vi_channel *chan) +{ + int index; + + bitmap_zero(chan->tpg_fmts_bitmap, MAX_FORMAT_NUM); + + index = tegra_get_format_idx_by_code(chan->vi, + MEDIA_BUS_FMT_SRGGB10_1X10); + bitmap_set(chan->tpg_fmts_bitmap, index, 1); + + index = tegra_get_format_idx_by_code(chan->vi, + MEDIA_BUS_FMT_RGB888_1X32_PADHI); + bitmap_set(chan->tpg_fmts_bitmap, index, 1); +} + +/* + * videobuf2 queue operations + */ +static int tegra_channel_queue_setup(struct vb2_queue *vq, + unsigned int *nbuffers, + unsigned int *nplanes, + unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct tegra_vi_channel *chan = vb2_get_drv_priv(vq); + + if (*nplanes) + return sizes[0] < chan->format.sizeimage ? -EINVAL : 0; + + *nplanes = 1; + sizes[0] = chan->format.sizeimage; + alloc_devs[0] = chan->vi->dev; + + return 0; +} + +static int tegra_channel_buffer_prepare(struct vb2_buffer *vb) +{ + struct tegra_vi_channel *chan = vb2_get_drv_priv(vb->vb2_queue); + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct tegra_channel_buffer *buf = to_tegra_channel_buffer(vbuf); + unsigned long size = chan->format.sizeimage; + + if (vb2_plane_size(vb, 0) < size) { + v4l2_err(chan->video.v4l2_dev, + "buffer too small (%lu < %lu)\n", + vb2_plane_size(vb, 0), size); + return -EINVAL; + } + + vb2_set_plane_payload(vb, 0, size); + buf->chan = chan; + buf->addr = vb2_dma_contig_plane_dma_addr(vb, 0); + + return 0; +} + +static void tegra_channel_buffer_queue(struct vb2_buffer *vb) +{ + struct tegra_vi_channel *chan = vb2_get_drv_priv(vb->vb2_queue); + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct tegra_channel_buffer *buf = to_tegra_channel_buffer(vbuf); + + /* put buffer into the capture queue */ + spin_lock(&chan->start_lock); + list_add_tail(&buf->queue, &chan->capture); + spin_unlock(&chan->start_lock); + + /* wait up kthread for capture */ + wake_up_interruptible(&chan->start_wait); +} + +static struct v4l2_subdev * +tegra_channel_get_remote_subdev(struct tegra_vi_channel *chan) +{ + struct media_pad *pad; + struct v4l2_subdev *subdev; + struct media_entity *entity; + + pad = media_entity_remote_pad(&chan->pad); + entity = pad->entity; + subdev = media_entity_to_v4l2_subdev(entity); + + return subdev; +} + +int tegra_channel_csi_error_status(struct tegra_vi_channel *chan) +{ + struct v4l2_subdev *subdev; + + subdev = tegra_channel_get_remote_subdev(chan); + tegra_csi_error_status(subdev); + + return 0; +} + +int tegra_channel_set_stream(struct tegra_vi_channel *chan, bool on) +{ + struct v4l2_subdev *subdev; + int ret; + + /* stream CSI */ + subdev = tegra_channel_get_remote_subdev(chan); + v4l2_set_subdev_hostdata(subdev, chan); + ret = v4l2_subdev_call(subdev, video, s_stream, on); + if (on && ret < 0 && ret != -ENOIOCTLCMD) + return ret; + + return 0; +} + +void tegra_channel_queued_buf_done(struct tegra_vi_channel *chan, + enum vb2_buffer_state state) +{ + struct tegra_channel_buffer *buf, *nbuf; + + spin_lock(&chan->start_lock); + list_for_each_entry_safe(buf, nbuf, &chan->capture, queue) { + vb2_buffer_done(&buf->buf.vb2_buf, state); + list_del(&buf->queue); + } + + spin_unlock(&chan->start_lock); +} + +static int tegra_channel_start_streaming(struct vb2_queue *vq, u32 count) +{ + struct tegra_vi_channel *chan = vb2_get_drv_priv(vq); + + return chan->vi->ops->vi_start_streaming(vq, count); +} + +static void tegra_channel_stop_streaming(struct vb2_queue *vq) +{ + struct tegra_vi_channel *chan = vb2_get_drv_priv(vq); + + chan->vi->ops->vi_stop_streaming(vq); +} + +static const struct vb2_ops tegra_channel_queue_qops = { + .queue_setup = tegra_channel_queue_setup, + .buf_prepare = tegra_channel_buffer_prepare, + .buf_queue = tegra_channel_buffer_queue, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, + .start_streaming = tegra_channel_start_streaming, + .stop_streaming = tegra_channel_stop_streaming, +}; + +/* + * V4L2 ioctls + */ +static int tegra_channel_querycap(struct file *file, void *fh, + struct v4l2_capability *cap) +{ + struct v4l2_fh *vfh = file->private_data; + struct tegra_vi_channel *chan = to_tegra_vi_channel(vfh->vdev); + + strscpy(cap->driver, "tegra-video", sizeof(cap->driver)); + strscpy(cap->card, chan->video.name, sizeof(cap->card)); + snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", + dev_name(chan->vi->dev)); + + return 0; +} + +static int tegra_channel_enum_format(struct file *file, void *fh, + struct v4l2_fmtdesc *f) +{ + struct v4l2_fh *vfh = file->private_data; + struct tegra_vi_channel *chan = to_tegra_vi_channel(vfh->vdev); + unsigned int index = 0, i; + unsigned long *fmts_bitmap = chan->tpg_fmts_bitmap; + + if (f->index >= bitmap_weight(fmts_bitmap, MAX_FORMAT_NUM)) + return -EINVAL; + + for (i = 0; i < f->index + 1; i++, index++) + index = find_next_bit(fmts_bitmap, MAX_FORMAT_NUM, index); + + f->pixelformat = tegra_get_format_fourcc_by_idx(chan->vi, index - 1); + + return 0; +} + +static int tegra_channel_get_format(struct file *file, void *fh, + struct v4l2_format *format) +{ + struct v4l2_fh *vfh = file->private_data; + struct tegra_vi_channel *chan = to_tegra_vi_channel(vfh->vdev); + + format->fmt.pix = chan->format; + return 0; +} + +static int __tegra_channel_try_format(struct tegra_vi_channel *chan, + struct v4l2_pix_format *pix, + const struct tegra_video_format **vfmt) +{ + const struct tegra_video_format *fmt_info; + unsigned int align; + unsigned int min_width; + unsigned int max_width; + unsigned int width; + unsigned int min_bpl; + unsigned int max_bpl; + unsigned int bpl; + + /* + * Retrieve the format information and if requested format isn't + * supported, keep the current format. + */ + fmt_info = tegra_get_format_by_fourcc(chan->vi, pix->pixelformat); + if (!fmt_info) { + pix->pixelformat = chan->format.pixelformat; + pix->colorspace = chan->format.colorspace; + fmt_info = tegra_get_format_by_fourcc(chan->vi, + pix->pixelformat); + } + + /* + * The transfer alignment requirements are expressed in bytes. Compute + * minimum and maximum values, clamp the requested width and convert + * it back to pixels. Use bytesperline to adjust the width. + */ + align = lcm(SURFACE_ALIGN_BYTES, fmt_info->bpp); + min_width = roundup(TEGRA_MIN_WIDTH, align); + max_width = rounddown(TEGRA_MAX_WIDTH, align); + width = roundup(pix->width * fmt_info->bpp, align); + + pix->width = clamp(width, min_width, max_width) / fmt_info->bpp; + pix->height = clamp(pix->height, TEGRA_MIN_HEIGHT, TEGRA_MAX_HEIGHT); + + /* Clamp the requested bytes per line value. If the maximum bytes per + * line value is zero, the module doesn't support user configurable + * line sizes. Override the requested value with the minimum in that + * cases. + */ + min_bpl = pix->width * fmt_info->bpp; + max_bpl = rounddown(TEGRA_MAX_WIDTH, SURFACE_ALIGN_BYTES); + bpl = roundup(pix->bytesperline, SURFACE_ALIGN_BYTES); + + pix->bytesperline = clamp(bpl, min_bpl, max_bpl); + pix->sizeimage = pix->bytesperline * pix->height; + pix->field = V4L2_FIELD_NONE; + + if (vfmt) + *vfmt = fmt_info; + + return 0; +} + +static int tegra_channel_try_format(struct file *file, void *fh, + struct v4l2_format *format) +{ + struct v4l2_fh *vfh = file->private_data; + struct tegra_vi_channel *chan = to_tegra_vi_channel(vfh->vdev); + + return __tegra_channel_try_format(chan, &format->fmt.pix, NULL); +} + +static int tegra_channel_set_format(struct file *file, void *fh, + struct v4l2_format *format) +{ + struct v4l2_fh *vfh = file->private_data; + struct tegra_vi_channel *chan = to_tegra_vi_channel(vfh->vdev); + const struct tegra_video_format *info; + + if (vb2_is_busy(&chan->queue)) + return -EBUSY; + + /* get supported format by try_fmt */ + __tegra_channel_try_format(chan, &format->fmt.pix, &info); + + chan->format = format->fmt.pix; + chan->fmtinfo = info; + + return 0; +} + +static int tegra_channel_enum_input(struct file *file, void *fh, + struct v4l2_input *inp) +{ + /* currently driver supports internal TPG only */ + if (inp->index) + return -EINVAL; + + inp->type = V4L2_INPUT_TYPE_CAMERA; + strscpy(inp->name, "Tegra TPG", sizeof(inp->name)); + + return 0; +} + +static int tegra_channel_g_input(struct file *file, void *priv, + unsigned int *i) +{ + *i = 0; + return 0; +} + +static int tegra_channel_s_input(struct file *file, void *priv, + unsigned int input) +{ + if (input > 0) + return -EINVAL; + + return 0; +} + +static const struct v4l2_ioctl_ops tegra_channel_ioctl_ops = { + .vidioc_querycap = tegra_channel_querycap, + .vidioc_enum_fmt_vid_cap = tegra_channel_enum_format, + .vidioc_g_fmt_vid_cap = tegra_channel_get_format, + .vidioc_s_fmt_vid_cap = tegra_channel_set_format, + .vidioc_try_fmt_vid_cap = tegra_channel_try_format, + .vidioc_enum_input = tegra_channel_enum_input, + .vidioc_g_input = tegra_channel_g_input, + .vidioc_s_input = tegra_channel_s_input, + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_prepare_buf = vb2_ioctl_prepare_buf, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_expbuf = vb2_ioctl_expbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +/* + * V4L2 file operations + */ +static const struct v4l2_file_operations tegra_channel_fops = { + .owner = THIS_MODULE, + .unlocked_ioctl = video_ioctl2, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .read = vb2_fop_read, + .poll = vb2_fop_poll, + .mmap = vb2_fop_mmap, +}; + +static const char *const vi_pattern_strings[] = { + "Black/White Direct Mode", + "Color Patch Mode", +}; + +static int vi_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct tegra_vi_channel *chan = container_of(ctrl->handler, + struct tegra_vi_channel, + ctrl_handler); + + switch (ctrl->id) { + case V4L2_CID_TEST_PATTERN: + /* pattern change takes effect on next stream */ + chan->pg_mode = ctrl->val + 1; + break; + default: + return -EINVAL; + } + + return 0; +} + +static const struct v4l2_ctrl_ops vi_ctrl_ops = { + .s_ctrl = vi_s_ctrl, +}; + +int tegra_channel_setup_ctrl_handler(struct tegra_vi_channel *chan) +{ + int ret; + + /* add test pattern control handler to v4l2 device */ + v4l2_ctrl_new_std_menu_items(&chan->ctrl_handler, &vi_ctrl_ops, + V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(vi_pattern_strings) - 1, + 0, 0, vi_pattern_strings); + if (chan->ctrl_handler.error) { + dev_err(chan->vi->dev, "failed to add TPG ctrl handler: %d\n", + chan->ctrl_handler.error); + v4l2_ctrl_handler_free(&chan->ctrl_handler); + return chan->ctrl_handler.error; + } + + /* setup the controls */ + ret = v4l2_ctrl_handler_setup(&chan->ctrl_handler); + if (ret < 0) { + dev_err(chan->vi->dev, + "failed to setup v4l2 ctrl handler: %d\n", ret); + goto free_hdl; + } + + return 0; + +free_hdl: + v4l2_ctrl_handler_free(&chan->ctrl_handler); + return ret; +} + +static int tegra_chan_video_link_validate(struct media_link *link) +{ + struct video_device *vdev = container_of(link->sink->entity, + struct video_device, entity); + struct tegra_vi_channel *chan = to_tegra_vi_channel(vdev); + struct v4l2_subdev_format src_fmt; + struct media_pad *src_pad; + struct v4l2_subdev *sd; + + if (!media_entity_remote_pad(link->sink->entity->pads)) { + dev_err(chan->vi->dev, "video %s pad is not connected\n", + vdev->name); + return -ENOTCONN; + } + + src_pad = link->source; + + if (is_media_entity_v4l2_subdev(src_pad->entity)) { + sd = media_entity_to_v4l2_subdev(src_pad->entity); + + src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; + src_fmt.pad = src_pad->index; + v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt); + + if (src_fmt.format.width != chan->format.width || + src_fmt.format.height != chan->format.height) { + dev_err(chan->vi->dev, + "wrong widthxheight %ux%u (expected %ux%u)\n", + chan->format.width, chan->format.height, + src_fmt.format.width, src_fmt.format.height); + return -EINVAL; + } + + if (src_fmt.format.code != chan->fmtinfo->code) { + dev_err(chan->vi->dev, + "wrong mbus code: 0x%x (expected 0x%x)\n", + chan->fmtinfo->code, src_fmt.format.code); + return -EINVAL; + } + } + + return 0; +} + +static const struct media_entity_operations tegra_chan_video_media_ops = { + .link_validate = tegra_chan_video_link_validate +}; + +int tegra_channel_init(struct tegra_vi_channel *chan) +{ + struct tegra_vi *vi = chan->vi; + struct tegra_video_device *vid = dev_get_drvdata(vi->client.host); + int ret; + + mutex_init(&chan->video_lock); + INIT_LIST_HEAD(&chan->capture); + INIT_LIST_HEAD(&chan->done); + spin_lock_init(&chan->start_lock); + spin_lock_init(&chan->done_lock); + init_waitqueue_head(&chan->start_wait); + init_waitqueue_head(&chan->done_wait); + + /* initialize the video format */ + chan->fmtinfo = &tegra_default_format; + chan->format.pixelformat = chan->fmtinfo->fourcc; + chan->format.colorspace = V4L2_COLORSPACE_SRGB; + chan->format.field = V4L2_FIELD_NONE; + chan->format.width = TEGRA_DEF_WIDTH; + chan->format.height = TEGRA_DEF_HEIGHT; + chan->format.bytesperline = TEGRA_DEF_WIDTH * chan->fmtinfo->bpp; + chan->format.sizeimage = chan->format.bytesperline * TEGRA_DEF_HEIGHT; + + /* initialize the media entity */ + chan->pad.flags = MEDIA_PAD_FL_SINK; + chan->video.entity.ops = &tegra_chan_video_media_ops; + ret = media_entity_pads_init(&chan->video.entity, 1, &chan->pad); + if (ret < 0) + return ret; + + ret = v4l2_ctrl_handler_init(&chan->ctrl_handler, MAX_CID_CONTROLS); + if (chan->ctrl_handler.error) { + dev_err(vi->dev, + "V4L2 controls handler init failed: %d\n", ret); + goto ctrl_init_error; + } + + /* initialize the video_device */ + chan->video.fops = &tegra_channel_fops; + chan->video.v4l2_dev = &vid->v4l2_dev; + chan->video.queue = &chan->queue; + snprintf(chan->video.name, sizeof(chan->video.name), "%s-%s-%u", + dev_name(vi->dev), "output", chan->portno); + chan->video.vfl_type = VFL_TYPE_GRABBER; + chan->video.vfl_dir = VFL_DIR_RX; + chan->video.release = video_device_release_empty; + chan->video.ioctl_ops = &tegra_channel_ioctl_ops; + chan->video.ctrl_handler = &chan->ctrl_handler; + chan->video.lock = &chan->video_lock; + chan->video.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | + V4L2_CAP_READWRITE; + + video_set_drvdata(&chan->video, chan); + chan->sp = host1x_syncpt_request(&vi->client, HOST1X_SYNCPT_HAS_BASE); + if (!chan->sp) { + dev_err(vi->dev, "failed to request syncpoint\n"); + ret = -ENOMEM; + goto host1x_sp_error; + } + + chan->queue.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + chan->queue.io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ; + chan->queue.lock = &chan->video_lock; + chan->queue.drv_priv = chan; + chan->queue.buf_struct_size = sizeof(struct tegra_channel_buffer); + chan->queue.ops = &tegra_channel_queue_qops; + chan->queue.mem_ops = &vb2_dma_contig_memops; + chan->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + chan->queue.dev = vi->dev; + ret = vb2_queue_init(&chan->queue); + if (ret < 0) { + dev_err(vi->dev, "failed to initialize VB2 queue: %d\n", ret); + goto vb2_init_error; + } + + ret = video_register_device(&chan->video, VFL_TYPE_GRABBER, -1); + if (ret < 0) { + dev_err(&chan->video.dev, + "failed to register video device: %d\n", ret); + goto video_register_error; + } + + return 0; + +video_register_error: + vb2_queue_release(&chan->queue); +vb2_init_error: + host1x_syncpt_free(chan->sp); +host1x_sp_error: + v4l2_ctrl_handler_free(&chan->ctrl_handler); +ctrl_init_error: + media_entity_cleanup(&chan->video.entity); + return ret; +} + +int tegra_channel_cleanup(struct tegra_vi_channel *chan) +{ + if (video_is_registered(&chan->video)) { + video_unregister_device(&chan->video); + vb2_queue_release(&chan->queue); + media_entity_cleanup(&chan->video.entity); + } + + host1x_syncpt_free(chan->sp); + v4l2_ctrl_handler_free(&chan->ctrl_handler); + + return 0; +} + +int tegra_vi_power_on(struct tegra_vi *vi) +{ + int ret; + + ret = regulator_enable(vi->vi_reg); + if (ret) { + dev_err(vi->dev, "failed to enable VDD supply: %d\n", ret); + return ret; + } + + ret = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_VENC, + vi->vi_clk, vi->vi_rst); + if (ret) { + dev_err(vi->dev, "failed to power partition: %d\n", ret); + goto error_power_up; + } + + ret = clk_set_rate(vi->vi_clk, vi->soc->vi_max_clk_hz); + if (ret) { + dev_err(vi->dev, "failed to set vi clock rate: %d\n", ret); + goto error_clk_set_rate; + } + + ret = clk_prepare_enable(vi->vi_clk); + if (ret) { + dev_err(vi->dev, "failed to enable vi clock: %d\n", ret); + goto error_clk_set_rate; + } + + return 0; + +error_clk_set_rate: + tegra_powergate_power_off(TEGRA_POWERGATE_VENC); + +error_power_up: + regulator_disable(vi->vi_reg); + + return ret; +} + +void tegra_vi_power_off(struct tegra_vi *vi) +{ + reset_control_assert(vi->vi_rst); + clk_disable_unprepare(vi->vi_clk); + tegra_powergate_power_off(TEGRA_POWERGATE_VENC); + regulator_disable(vi->vi_reg); +} + +static int tegra_vi_tpg_channels_alloc(struct tegra_vi *vi) +{ + struct tegra_vi_channel *chan; + unsigned int port_num; + unsigned int nchannels = vi->soc->vi_max_channels; + + for (port_num = 0; port_num < nchannels; port_num++) { + chan = devm_kzalloc(vi->dev, sizeof(*chan), GFP_KERNEL); + if (!chan) + return -ENOMEM; + + list_add_tail(&chan->list, &vi->vi_chans); + chan->vi = vi; + chan->portno = port_num; + } + + return 0; +} + +static int tegra_vi_channels_init(struct tegra_vi *vi) +{ + struct tegra_vi_channel *chan; + int ret; + + list_for_each_entry(chan, &vi->vi_chans, list) { + ret = tegra_channel_init(chan); + if (ret < 0) { + dev_err(vi->dev, "channel %d init failed: %d\n", + chan->portno, ret); + return ret; + } + } + + return 0; +} + +static int tegra_vi_channels_cleanup(struct tegra_vi *vi) +{ + struct tegra_vi_channel *chan; + + list_for_each_entry(chan, &vi->vi_chans, list) + tegra_channel_cleanup(chan); + + return 0; +} + +static int tegra_vi_tpg_graph_init(struct tegra_vi *vi) +{ + struct tegra_video_device *vid = dev_get_drvdata(vi->client.host); + struct tegra_csi *csi = vid->csi; + struct tegra_vi_channel *vi_chan; + struct tegra_csi_channel *csi_chan; + u32 link_flags = MEDIA_LNK_FL_ENABLED; + int ret = 0; + + csi_chan = list_first_entry(&csi->csi_chans, struct tegra_csi_channel, + list); + + list_for_each_entry(vi_chan, &vi->vi_chans, list) { + struct media_entity *source = &csi_chan->subdev.entity; + struct media_entity *sink = &vi_chan->video.entity; + struct media_pad *source_pad = csi_chan->pads; + struct media_pad *sink_pad = &vi_chan->pad; + + ret = v4l2_device_register_subdev(&vid->v4l2_dev, + &csi_chan->subdev); + if (ret) { + dev_err(vi->dev, "failed to register subdev: %d\n", + ret); + goto register_fail; + } + + dev_dbg(vi->dev, "creating %s:%u -> %s:%u link\n", + source->name, source_pad->index, + sink->name, sink_pad->index); + + ret = media_create_pad_link(source, source_pad->index, + sink, sink_pad->index, + link_flags); + if (ret < 0) { + dev_err(vi->dev, + "failed to create %s:%u -> %s:%u link: %d\n", + source->name, source_pad->index, + sink->name, sink_pad->index, ret); + goto register_fail; + } + + vi_tpg_fmts_bitmap_init(vi_chan); + tegra_channel_setup_ctrl_handler(vi_chan); + + csi_chan = list_next_entry(csi_chan, list); + } + + return v4l2_device_register_subdev_nodes(&vid->v4l2_dev); + +register_fail: + list_for_each_entry(csi_chan, &csi->csi_chans, list) + v4l2_device_unregister_subdev(&csi_chan->subdev); + + return ret; +} + +static int tegra_vi_init(struct host1x_client *client) +{ + struct tegra_video_device *vid = dev_get_drvdata(client->host); + struct tegra_vi *vi = host1x_client_to_vi(client); + int ret; + + vid->vi = vi; + vid->media_dev.hw_revision = vi->soc->hw_revision; + snprintf(vid->media_dev.bus_info, sizeof(vid->media_dev.bus_info), + "platform:%s", dev_name(vi->dev)); + + if (!vid->csi) { + dev_err(vi->dev, "csi host1x client is not initialized\n"); + return -ENODEV; + } + + INIT_LIST_HEAD(&vi->vi_chans); + + /* create all TPG channels */ + ret = tegra_vi_tpg_channels_alloc(vi); + if (ret < 0) + return ret; + + /* initialize Tegra VI channels */ + ret = tegra_vi_channels_init(vi); + if (ret < 0) + return ret; + + /* setup media links between Tegra VI and CSI for TPG */ + ret = tegra_vi_tpg_graph_init(vi); + if (ret < 0) + return ret; + + return 0; +} + +static int tegra_vi_exit(struct host1x_client *client) +{ + struct tegra_video_device *vid = dev_get_drvdata(client->host); + + if (vid->vi) + tegra_vi_channels_cleanup(vid->vi); + + return 0; +} + +static const struct host1x_client_ops vi_client_ops = { + .init = tegra_vi_init, + .exit = tegra_vi_exit, +}; + +static int tegra_vi_probe(struct platform_device *pdev) +{ + struct resource *res; + struct tegra_vi *vi; + int ret; + + vi = devm_kzalloc(&pdev->dev, sizeof(*vi), GFP_KERNEL); + if (!vi) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + vi->iomem = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(vi->iomem)) + return PTR_ERR(vi->iomem); + + vi->soc = of_device_get_match_data(&pdev->dev); + if (!vi->soc) + return -ENODATA; + + vi->vi_rst = devm_reset_control_get(&pdev->dev, "vi"); + if (IS_ERR(vi->vi_rst)) { + ret = PTR_ERR(vi->vi_rst); + dev_err(&pdev->dev, "failed to get vi reset: %d\n", ret); + return ret; + } + + vi->vi_clk = devm_clk_get(&pdev->dev, "vi"); + if (IS_ERR(vi->vi_clk)) { + ret = PTR_ERR(vi->vi_clk); + dev_err(&pdev->dev, "failed to get vi clock: %d\n", ret); + return ret; + } + + vi->vi_reg = devm_regulator_get(&pdev->dev, "avdd-dsi-csi"); + if (IS_ERR(vi->vi_reg)) { + ret = PTR_ERR(vi->vi_reg); + dev_err(&pdev->dev, "failed to get VDD supply: %d\n", ret); + return ret; + } + + ret = devm_of_platform_populate(&pdev->dev); + if (ret) + return ret; + + vi->dev = &pdev->dev; + vi->ops = vi->soc->ops; + platform_set_drvdata(pdev, vi); + + /* initialize host1x interface */ + INIT_LIST_HEAD(&vi->client.list); + vi->client.ops = &vi_client_ops; + vi->client.dev = &pdev->dev; + + ret = host1x_client_register(&vi->client); + if (ret < 0) { + dev_err(vi->dev, "failed to register host1x client: %d\n", + ret); + return -ENODEV; + } + + return 0; +} + +static int tegra_vi_remove(struct platform_device *pdev) +{ + struct tegra_vi *vi = platform_get_drvdata(pdev); + + host1x_client_unregister(&vi->client); + + return 0; +} + +/* Tegra supported video formats */ +const struct tegra_video_format tegra210_video_formats[] = { + /* RAW 8 */ + TEGRA_VIDEO_FORMAT(RAW8, 8, SRGGB8_1X8, 1, T_L8, SRGGB8), + TEGRA_VIDEO_FORMAT(RAW8, 8, SGRBG8_1X8, 1, T_L8, SGRBG8), + TEGRA_VIDEO_FORMAT(RAW8, 8, SGBRG8_1X8, 1, T_L8, SGBRG8), + TEGRA_VIDEO_FORMAT(RAW8, 8, SBGGR8_1X8, 1, T_L8, SBGGR8), + /* RAW 10 */ + TEGRA_VIDEO_FORMAT(RAW10, 10, SRGGB10_1X10, 2, T_R16_I, SRGGB10), + TEGRA_VIDEO_FORMAT(RAW10, 10, SGRBG10_1X10, 2, T_R16_I, SGRBG10), + TEGRA_VIDEO_FORMAT(RAW10, 10, SGBRG10_1X10, 2, T_R16_I, SGBRG10), + TEGRA_VIDEO_FORMAT(RAW10, 10, SBGGR10_1X10, 2, T_R16_I, SBGGR10), + /* RAW 12 */ + TEGRA_VIDEO_FORMAT(RAW12, 12, SRGGB12_1X12, 2, T_R16_I, SRGGB12), + TEGRA_VIDEO_FORMAT(RAW12, 12, SGRBG12_1X12, 2, T_R16_I, SGRBG12), + TEGRA_VIDEO_FORMAT(RAW12, 12, SGBRG12_1X12, 2, T_R16_I, SGBRG12), + TEGRA_VIDEO_FORMAT(RAW12, 12, SBGGR12_1X12, 2, T_R16_I, SBGGR12), + /* RGB888 */ + TEGRA_VIDEO_FORMAT(RGB888, 24, RGB888_1X24, 4, T_A8R8G8B8, RGB24), + TEGRA_VIDEO_FORMAT(RGB888, 24, RGB888_1X32_PADHI, 4, T_A8B8G8R8, + XBGR32), + /* YUV422 */ + TEGRA_VIDEO_FORMAT(YUV422_8, 16, UYVY8_1X16, 2, T_U8_Y8__V8_Y8, UYVY), + TEGRA_VIDEO_FORMAT(YUV422_8, 16, VYUY8_1X16, 2, T_V8_Y8__U8_Y8, VYUY), + TEGRA_VIDEO_FORMAT(YUV422_8, 16, YUYV8_1X16, 2, T_Y8_U8__Y8_V8, YUYV), + TEGRA_VIDEO_FORMAT(YUV422_8, 16, YVYU8_1X16, 2, T_Y8_V8__Y8_U8, YVYU), + TEGRA_VIDEO_FORMAT(YUV422_8, 16, UYVY8_1X16, 1, T_Y8__V8U8_N422, NV16), + TEGRA_VIDEO_FORMAT(YUV422_8, 16, UYVY8_2X8, 2, T_U8_Y8__V8_Y8, UYVY), + TEGRA_VIDEO_FORMAT(YUV422_8, 16, VYUY8_2X8, 2, T_V8_Y8__U8_Y8, VYUY), + TEGRA_VIDEO_FORMAT(YUV422_8, 16, YUYV8_2X8, 2, T_Y8_U8__Y8_V8, YUYV), + TEGRA_VIDEO_FORMAT(YUV422_8, 16, YVYU8_2X8, 2, T_Y8_V8__Y8_U8, YVYU), +}; + +static const struct tegra_vi_ops tegra210_vi_ops = { + .vi_start_streaming = tegra210_vi_start_streaming, + .vi_stop_streaming = tegra210_vi_stop_streaming, +}; + +static const struct tegra_vi_soc tegra210_vi_soc = { + .video_formats = tegra210_video_formats, + .nformats = ARRAY_SIZE(tegra210_video_formats), + .ops = &tegra210_vi_ops, + .hw_revision = 3, + .vi_max_channels = 6, + .vi_max_clk_hz = 998400000, +}; + +static const struct of_device_id tegra_vi_of_id_table[] = { + { .compatible = "nvidia,tegra210-vi", .data = &tegra210_vi_soc }, + { } +}; +MODULE_DEVICE_TABLE(of, tegra_vi_of_id_table); + +struct platform_driver tegra_vi_driver = { + .driver = { + .name = "tegra-vi", + .of_match_table = tegra_vi_of_id_table, + }, + .probe = tegra_vi_probe, + .remove = tegra_vi_remove, +}; + +MODULE_AUTHOR("Sowjanya Komatineni "); +MODULE_DESCRIPTION("NVIDIA Tegra Video Input Device Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/staging/media/tegra/tegra-vi.h b/drivers/staging/media/tegra/tegra-vi.h new file mode 100644 index 000000000000..74d8667c6a3d --- /dev/null +++ b/drivers/staging/media/tegra/tegra-vi.h @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 NVIDIA CORPORATION. All rights reserved. + */ + +#ifndef __TEGRA_VI_H__ +#define __TEGRA_VI_H__ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "tegra-common.h" + +struct tegra_vi_ops { + int (*vi_start_streaming)(struct vb2_queue *vq, u32 count); + void (*vi_stop_streaming)(struct vb2_queue *vq); +}; + +/** + * struct tegra_vi_soc - NVIDIA Tegra Video Input SoC structure + * + * @video_formats: supported video formats + * @nformats: total video formats + * @ops: vi operations + * @hw_revision: VI hw_revision + * @vi_max_channels: supported max streaming channels + * @vi_max_clk_hz: VI clock max frequency + */ +struct tegra_vi_soc { + const struct tegra_video_format *video_formats; + const unsigned int nformats; + const struct tegra_vi_ops *ops; + u32 hw_revision; + unsigned int vi_max_channels; + unsigned int vi_max_clk_hz; +}; + +/** + * struct tegra_vi - NVIDIA Tegra Video Input device structure + * + * @dev: device struct + * @client: host1x_client struct + * @iomem: register base + * @vi_clk: main clock for VI block + * @vi_rst: reset controller + * @vi_reg: regulator for VI hardware, normally it avdd_dsi_csi + * @power_on_refcnt: reference count for power on/off operations + * @soc_data: pointer to SoC data structure + * @fops: vi operations + * @channels: list head for VI channels + */ +struct tegra_vi { + struct device *dev; + struct host1x_client client; + void __iomem *iomem; + struct clk *vi_clk; + struct reset_control *vi_rst; + struct regulator *vi_reg; + atomic_t power_on_refcnt; + const struct tegra_vi_soc *soc; + const struct tegra_vi_ops *ops; + struct list_head vi_chans; +}; + +int tegra_vi_power_on(struct tegra_vi *vi); +void tegra_vi_power_off(struct tegra_vi *vi); + +void tegra210_vi_stop_streaming(struct vb2_queue *vq); +int tegra210_vi_start_streaming(struct vb2_queue *vq, u32 count); + +#endif /* __TEGRA_VI_H__ */ diff --git a/drivers/staging/media/tegra/tegra-video.c b/drivers/staging/media/tegra/tegra-video.c new file mode 100644 index 000000000000..6ec41d0e05f9 --- /dev/null +++ b/drivers/staging/media/tegra/tegra-video.c @@ -0,0 +1,118 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2020 NVIDIA CORPORATION. All rights reserved. + */ + +#include +#include +#include + +#include "tegra-video.h" + +static int host1x_video_probe(struct host1x_device *dev) +{ + struct tegra_video_device *vid; + int ret; + + vid = devm_kzalloc(&dev->dev, sizeof(*vid), GFP_KERNEL); + if (!vid) + return -ENOMEM; + + vid->media_dev.dev = get_device(&dev->dev); + strscpy(vid->media_dev.model, "NVIDIA Tegra Video Input Device", + sizeof(vid->media_dev.model)); + + media_device_init(&vid->media_dev); + ret = media_device_register(&vid->media_dev); + if (ret < 0) { + dev_err(vid->media_dev.dev, + "failed to register media device: %d\n", ret); + return ret; + } + + vid->v4l2_dev.mdev = &vid->media_dev; + dev_set_drvdata(&dev->dev, vid); + ret = v4l2_device_register(vid->media_dev.dev, &vid->v4l2_dev); + if (ret < 0) { + dev_err(vid->media_dev.dev, + "V4L2 device registration failed: %d\n", ret); + goto clean_media; + } + + ret = host1x_device_init(dev); + if (ret < 0) + goto unregister_v4l2; + + return 0; + +unregister_v4l2: + v4l2_device_unregister(&vid->v4l2_dev); +clean_media: + media_device_unregister(&vid->media_dev); + media_device_cleanup(&vid->media_dev); + + return ret; +} + +static int host1x_video_remove(struct host1x_device *dev) +{ + struct tegra_video_device *vid = dev_get_drvdata(&dev->dev); + + host1x_device_exit(dev); + v4l2_device_unregister(&vid->v4l2_dev); + media_device_unregister(&vid->media_dev); + media_device_cleanup(&vid->media_dev); + + return 0; +} + +static const struct of_device_id host1x_video_subdevs[] = { + { .compatible = "nvidia,tegra210-csi", }, + { .compatible = "nvidia,tegra210-vi", }, + { } +}; + +static struct host1x_driver host1x_video_driver = { + .driver = { + .name = "tegra-video", + }, + .probe = host1x_video_probe, + .remove = host1x_video_remove, + .subdevs = host1x_video_subdevs, +}; + +static struct platform_driver * const drivers[] = { + &tegra_csi_driver, + &tegra_vi_driver, +}; + +static int __init host1x_video_init(void) +{ + int err; + + err = host1x_driver_register(&host1x_video_driver); + if (err < 0) + return err; + + err = platform_register_drivers(drivers, ARRAY_SIZE(drivers)); + if (err < 0) + goto unregister_host1x; + + return 0; + +unregister_host1x: + host1x_driver_unregister(&host1x_video_driver); + return err; +} +module_init(host1x_video_init); + +static void __exit host1x_video_exit(void) +{ + platform_unregister_drivers(drivers, ARRAY_SIZE(drivers)); + host1x_driver_unregister(&host1x_video_driver); +} +module_exit(host1x_video_exit); + +MODULE_AUTHOR("Sowjanya Komatineni "); +MODULE_DESCRIPTION("NVIDIA Tegra Host1x Video driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/staging/media/tegra/tegra-video.h b/drivers/staging/media/tegra/tegra-video.h new file mode 100644 index 000000000000..1e2ae647a4e2 --- /dev/null +++ b/drivers/staging/media/tegra/tegra-video.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 NVIDIA CORPORATION. All rights reserved. + */ + +#ifndef __TEGRA_VIDEO_H__ +#define __TEGRA_VIDEO_H__ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "tegra-vi.h" +#include "tegra-csi.h" + +struct tegra_video_device { + struct v4l2_device v4l2_dev; + struct media_device media_dev; + struct tegra_vi *vi; + struct tegra_csi *csi; +}; + +extern struct platform_driver tegra_vi_driver; +extern struct platform_driver tegra_csi_driver; + +#endif diff --git a/drivers/staging/media/tegra/tegra210.c b/drivers/staging/media/tegra/tegra210.c new file mode 100644 index 000000000000..34f4f66ff072 --- /dev/null +++ b/drivers/staging/media/tegra/tegra210.c @@ -0,0 +1,698 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2020 NVIDIA CORPORATION. All rights reserved. + */ + +#include +#include +#include +#include + +#include "tegra-common.h" +#include "tegra-csi.h" +#include "tegra-vi.h" +#include "tegra210.h" + +#define TEGRA210_TPG_CLOCK 594000000 +#define TEGRA210_CSI_PORT_OFFSET 0x34 +#define TEGRA210_CSI_CIL_OFFSET 0x0f4 +#define TEGRA210_CSI_TPG_OFFSET 0x18c + +#define CSI_PP_OFFSET(block) ((block) * 0x800) +#define TEGRA210_VI_CSI_BASE(x) (0x100 + (x) * 0x100) + +/* CSI PHY register write accessor */ +static void csi_write(struct tegra_csi *csi, u8 portno, unsigned int addr, + u32 val) +{ + void __iomem *csi_pp_base; + + csi_pp_base = csi->iomem + CSI_PP_OFFSET(portno >> 1); + + writel(val, csi_pp_base + addr); +} + +/* Pixel parser registers accessors */ +static void pp_write(struct tegra_csi *csi, u8 portno, u32 addr, u32 val) +{ + void __iomem *csi_pp_base; + unsigned int offset; + + csi_pp_base = csi->iomem + CSI_PP_OFFSET(portno >> 1); + offset = (portno % CSI_PORTS_PER_BRICK) * TEGRA210_CSI_PORT_OFFSET; + + writel(val, csi_pp_base + offset + addr); +} + +static u32 pp_read(struct tegra_csi *csi, u8 portno, u32 addr) +{ + void __iomem *csi_pp_base; + unsigned int offset; + + csi_pp_base = csi->iomem + CSI_PP_OFFSET(portno >> 1); + offset = (portno % CSI_PORTS_PER_BRICK) * TEGRA210_CSI_PORT_OFFSET; + + return readl(csi_pp_base + offset + addr); +} + +/* CSI CIL A/B port registers accessors */ +static void cil_write(struct tegra_csi *csi, u8 portno, u32 addr, u32 val) +{ + void __iomem *csi_cil_base; + unsigned int offset; + + csi_cil_base = csi->iomem + CSI_PP_OFFSET(portno >> 1) + + TEGRA210_CSI_CIL_OFFSET; + offset = (portno % CSI_PORTS_PER_BRICK) * TEGRA210_CSI_PORT_OFFSET; + + writel(val, csi_cil_base + offset + addr); +} + +static u32 cil_read(struct tegra_csi *csi, u8 portno, u32 addr) +{ + void __iomem *csi_cil_base; + unsigned int offset; + + csi_cil_base = csi->iomem + CSI_PP_OFFSET(portno >> 1) + + TEGRA210_CSI_CIL_OFFSET; + offset = (portno % CSI_PORTS_PER_BRICK) * TEGRA210_CSI_PORT_OFFSET; + + return readl(csi_cil_base + offset + addr); +} + +/* Test pattern generator registers accessor */ +static void tpg_write(struct tegra_csi *csi, u8 portno, unsigned int addr, + u32 val) +{ + void __iomem *csi_pp_base; + unsigned int offset; + + csi_pp_base = csi->iomem + CSI_PP_OFFSET(portno >> 1); + offset = (portno % CSI_PORTS_PER_BRICK) * TEGRA210_CSI_PORT_OFFSET + + TEGRA210_CSI_TPG_OFFSET; + + writel(val, csi_pp_base + offset + addr); +} + +/* Tegra VI registers accessors */ +static void tegra_vi_write(struct tegra_vi_channel *chan, unsigned int addr, + u32 val) +{ + writel(val, chan->vi->iomem + addr); +} + +static u32 tegra_vi_read(struct tegra_vi_channel *chan, unsigned int addr) +{ + return readl(chan->vi->iomem + addr); +} + +/* VI_CSI registers accessors */ +static void vi_csi_write(struct tegra_vi_channel *chan, unsigned int addr, + u32 val) +{ + void __iomem *vi_csi_base; + + vi_csi_base = chan->vi->iomem + TEGRA210_VI_CSI_BASE(chan->portno); + + writel(val, vi_csi_base + addr); +} + +static u32 vi_csi_read(struct tegra_vi_channel *chan, unsigned int addr) +{ + void __iomem *vi_csi_base; + + vi_csi_base = chan->vi->iomem + TEGRA210_VI_CSI_BASE(chan->portno); + + return readl(vi_csi_base + addr); +} + +/* + * Tegra channel frame setup and capture operations + */ +static int tegra_channel_capture_setup(struct tegra_vi_channel *chan) +{ + u32 height = chan->format.height; + u32 width = chan->format.width; + u32 format = chan->fmtinfo->img_fmt; + u32 data_type = chan->fmtinfo->img_dt; + u32 word_count = (width * chan->fmtinfo->bit_width) / 8; + + vi_csi_write(chan, TEGRA_VI_CSI_ERROR_STATUS, 0xFFFFFFFF); + vi_csi_write(chan, TEGRA_VI_CSI_IMAGE_DEF, + ((chan->pg_mode ? 0 : 1) << BYPASS_PXL_TRANSFORM_OFFSET) | + (format << IMAGE_DEF_FORMAT_OFFSET) | + IMAGE_DEF_DEST_MEM); + vi_csi_write(chan, TEGRA_VI_CSI_IMAGE_DT, data_type); + vi_csi_write(chan, TEGRA_VI_CSI_IMAGE_SIZE_WC, word_count); + vi_csi_write(chan, TEGRA_VI_CSI_IMAGE_SIZE, + (height << IMAGE_SIZE_HEIGHT_OFFSET) | width); + return 0; +} + +static void tegra_channel_capture_error_status(struct tegra_vi_channel *chan) +{ + u32 val; + + val = vi_csi_read(chan, TEGRA_VI_CSI_ERROR_STATUS); + dev_err(&chan->video.dev, "TEGRA_VI_CSI_ERROR_STATUS 0x%08x\n", val); + vi_csi_write(chan, TEGRA_VI_CSI_ERROR_STATUS, val); + + val = tegra_vi_read(chan, TEGRA_VI_CFG_VI_INCR_SYNCPT_ERROR); + dev_err(&chan->video.dev, + "TEGRA_VI_CFG_VI_INCR_SYNCPT_ERROR 0x%08x\n", val); + tegra_vi_write(chan, TEGRA_VI_CFG_VI_INCR_SYNCPT_ERROR, val); + vi_csi_write(chan, TEGRA_VI_CSI_SW_RESET, 0xF); + vi_csi_write(chan, TEGRA_VI_CSI_SW_RESET, 0x0); + + tegra_channel_csi_error_status(chan); +} + +static int tegra_channel_capture_frame(struct tegra_vi_channel *chan, + struct tegra_channel_buffer *buf) +{ + int err = 0; + u32 thresh, value, frame_start; + int bytes_per_line = chan->format.bytesperline; + + /* program buffer address by using surface 0 */ + vi_csi_write(chan, TEGRA_VI_CSI_SURFACE0_OFFSET_MSB, 0x0); + vi_csi_write(chan, TEGRA_VI_CSI_SURFACE0_OFFSET_LSB, buf->addr); + vi_csi_write(chan, TEGRA_VI_CSI_SURFACE0_STRIDE, bytes_per_line); + + /* increase syncpoint max */ + thresh = host1x_syncpt_incr_max(chan->sp, 1); + + /* program syncpoint */ + frame_start = VI_CSI_PP_FRAME_START(chan->portno); + value = VI_CFG_VI_INCR_SYNCPT_COND(frame_start) | + host1x_syncpt_id(chan->sp); + tegra_vi_write(chan, TEGRA_VI_CFG_VI_INCR_SYNCPT, value); + + vi_csi_write(chan, TEGRA_VI_CSI_SINGLE_SHOT, SINGLE_SHOT_CAPTURE); + + /* move buffer to capture done queue */ + spin_lock(&chan->done_lock); + list_add_tail(&buf->queue, &chan->done); + spin_unlock(&chan->done_lock); + + /* wait up kthread for capture done */ + wake_up_interruptible(&chan->done_wait); + + /* use syncpoint to wake up */ + err = host1x_syncpt_wait(chan->sp, thresh, + TEGRA_VI_SYNCPT_WAIT_TIMEOUT, &value); + if (err) { + dev_err(&chan->video.dev, + "frame start syncpt timeout: %d\n", err); + tegra_channel_capture_error_status(chan); + } + + return err; +} + +static int tegra_channel_capture_done(struct tegra_vi_channel *chan, + struct tegra_channel_buffer *buf) +{ + struct vb2_v4l2_buffer *vb = &buf->buf; + u32 thresh, value, mw_ack_done; + int ret = 0; + + /* increase syncpoint max */ + thresh = host1x_syncpt_incr_max(chan->sp, 1); + + /* program syncpoint */ + mw_ack_done = VI_CSI_MW_ACK_DONE(chan->portno); + value = VI_CFG_VI_INCR_SYNCPT_COND(mw_ack_done) | + host1x_syncpt_id(chan->sp); + tegra_vi_write(chan, TEGRA_VI_CFG_VI_INCR_SYNCPT, value); + + if (!vi_csi_read(chan, TEGRA_VI_CSI_SINGLE_SHOT)) + vi_csi_write(chan, TEGRA_VI_CSI_SINGLE_SHOT, + SINGLE_SHOT_CAPTURE); + + /* use syncpoint to wake up */ + ret = host1x_syncpt_wait(chan->sp, thresh, + TEGRA_VI_SYNCPT_WAIT_TIMEOUT, &value); + if (ret) + dev_err(&chan->video.dev, + "MW_ACK_DONE syncpoint timeout: %d\n", ret); + + /* captured one frame */ + vb->sequence = chan->sequence++; + vb->field = V4L2_FIELD_NONE; + vb->vb2_buf.timestamp = ktime_get_ns(); + vb2_buffer_done(&vb->vb2_buf, + ret < 0 ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); + return ret; +} + +static int chan_capture_kthread_start(void *data) +{ + struct tegra_vi_channel *chan = data; + struct tegra_channel_buffer *buf; + int err = 0; + + set_freezable(); + + while (1) { + try_to_freeze(); + + wait_event_interruptible(chan->start_wait, + !list_empty(&chan->capture) || + kthread_should_stop()); + if (kthread_should_stop()) + break; + + if (err) + continue; + + spin_lock(&chan->start_lock); + if (list_empty(&chan->capture)) { + spin_unlock(&chan->start_lock); + continue; + } + + buf = list_entry(chan->capture.next, + struct tegra_channel_buffer, queue); + list_del_init(&buf->queue); + spin_unlock(&chan->start_lock); + err = tegra_channel_capture_frame(chan, buf); + } + + return 0; +} + +static int chan_capture_kthread_done(void *data) +{ + struct tegra_vi_channel *chan = data; + struct tegra_channel_buffer *buf; + int err = 0; + + set_freezable(); + + while (1) { + try_to_freeze(); + + wait_event_interruptible(chan->done_wait, + !list_empty(&chan->done) || + kthread_should_stop()); + + if (kthread_should_stop()) + break; + + spin_lock(&chan->done_lock); + if (list_empty(&chan->done)) { + spin_unlock(&chan->done_lock); + continue; + } + + buf = list_entry(chan->done.next, struct tegra_channel_buffer, + queue); + if (!buf) + continue; + + list_del_init(&buf->queue); + spin_unlock(&chan->done_lock); + err = tegra_channel_capture_done(chan, buf); + } + + return 0; +} + +int tegra210_vi_start_streaming(struct vb2_queue *vq, u32 count) +{ + struct tegra_vi_channel *chan = vb2_get_drv_priv(vq); + struct media_pipeline *pipe = &chan->video.pipe; + int ret = 0; + + /* turn on the power on first open */ + if (atomic_add_return(1, &chan->vi->power_on_refcnt) == 1) { + ret = tegra_vi_power_on(chan->vi); + if (ret < 0) + goto error_vi_power_on; + + usleep_range(5, 100); + tegra_vi_write(chan, TEGRA_VI_CFG_CG_CTRL, VI_CG_2ND_LEVEL_EN); + usleep_range(10, 15); + } + + /* clean up status */ + vi_csi_write(chan, TEGRA_VI_CSI_ERROR_STATUS, 0xFFFFFFFF); + + /* + * Sync point FIFO full stalls the host interface. + * Setting NO_STALL will drop INCR_SYNCPT methods when fifos are + * full and corresponding condition bits in INCR_SYNCPT_ERROR + * register will be set. + * This allows SW to process error recovery. + */ + tegra_vi_write(chan, TEGRA_VI_CFG_VI_INCR_SYNCPT_CNTRL, + TEGRA_VI_CFG_VI_INCR_SYNCPT_NO_STALL); + + ret = media_pipeline_start(&chan->video.entity, pipe); + if (ret < 0) + goto error_pipeline_start; + + /* start the pipeline */ + ret = tegra_channel_set_stream(chan, true); + if (ret < 0) + goto error_set_stream; + + /* program VI registers after TPG, sensors and CSI streaming */ + ret = tegra_channel_capture_setup(chan); + if (ret < 0) + goto error_capture_setup; + + chan->sequence = 0; + + /* start kthread to capture data to buffer */ + chan->kthread_capture_start = kthread_run(chan_capture_kthread_start, + chan, "%s:0", + chan->video.name); + if (IS_ERR(chan->kthread_capture_start)) { + ret = PTR_ERR(chan->kthread_capture_start); + chan->kthread_capture_start = NULL; + dev_err(&chan->video.dev, + "failed capture start kthread: %d\n", ret); + goto error_capture_setup; + } + + chan->kthread_capture_done = kthread_run(chan_capture_kthread_done, + chan, "%s:1", + chan->video.name); + if (IS_ERR(chan->kthread_capture_done)) { + ret = PTR_ERR(chan->kthread_capture_done); + chan->kthread_capture_done = NULL; + dev_err(&chan->video.dev, + "failed capture done kthread: %d\n", ret); + goto error_capture_setup; + } + + return 0; + +error_capture_setup: + tegra_channel_set_stream(chan, false); + +error_set_stream: + media_pipeline_stop(&chan->video.entity); + +error_pipeline_start: + tegra_channel_queued_buf_done(chan, VB2_BUF_STATE_QUEUED); + +error_vi_power_on: + if (atomic_dec_and_test(&chan->vi->power_on_refcnt)) + tegra_vi_power_off(chan->vi); + return ret; +} + +void tegra210_vi_stop_streaming(struct vb2_queue *vq) +{ + struct tegra_vi_channel *chan = vb2_get_drv_priv(vq); + + /* stop the kthread for capture */ + kthread_stop(chan->kthread_capture_start); + chan->kthread_capture_start = NULL; + kthread_stop(chan->kthread_capture_done); + chan->kthread_capture_done = NULL; + + /* disable clock gating to enable continuous clock */ + tegra_vi_write(chan, TEGRA_VI_CFG_CG_CTRL, 0); + + /* clear single shot if armed at close */ + if (vi_csi_read(chan, TEGRA_VI_CSI_SINGLE_SHOT)) { + vi_csi_write(chan, TEGRA_VI_CSI_SW_RESET, 0xF); + vi_csi_write(chan, TEGRA_VI_CSI_SW_RESET, 0x0); + } + + /* enable clock gating so VI can be clock gated if necessary */ + tegra_vi_write(chan, TEGRA_VI_CFG_CG_CTRL, VI_CG_2ND_LEVEL_EN); + + tegra_channel_set_stream(chan, false); + + media_pipeline_stop(&chan->video.entity); + + /* turn off power on the last release */ + if (atomic_dec_and_test(&chan->vi->power_on_refcnt)) + tegra_vi_power_off(chan->vi); + + tegra_channel_queued_buf_done(chan, VB2_BUF_STATE_ERROR); +} + +void tegra210_csi_error_status(struct tegra_csi_channel *csi_chan) +{ + struct tegra_csi *csi = csi_chan->csi; + unsigned int port_num = csi_chan->csi_port_num; + u32 val; + + val = pp_read(csi, port_num, TEGRA_CSI_PIXEL_PARSER_STATUS); + dev_err(csi->dev, "TEGRA_CSI_PIXEL_PARSER_STATUS 0x%08x\n", val); + + val = cil_read(csi, port_num, TEGRA_CSI_CIL_STATUS); + dev_err(csi->dev, "TEGRA_CSI_CIL_STATUS 0x%08x\n", val); + + val = cil_read(csi, port_num, TEGRA_CSI_CILX_STATUS); + dev_err(csi->dev, "TEGRA_CSI_CILX_STATUS 0x%08x\n", val); + + cil_write(csi, port_num, TEGRA_CSI_CIL_SW_SENSOR_RESET, 0x1); + csi_write(csi, port_num, TEGRA_CSI_CSI_SW_STATUS_RESET, 0x1); + /* sleep for 20 clock cycles to drain the FIFO*/ + usleep_range(10, 20); + cil_write(csi, port_num, TEGRA_CSI_CIL_SW_SENSOR_RESET, 0x0); + csi_write(csi, port_num, TEGRA_CSI_CSI_SW_STATUS_RESET, 0x0); +} + +int tegra210_csi_streaming(struct tegra_csi_channel *csi_chan, u8 pg_mode, + int enable) +{ + struct tegra_csi *csi = csi_chan->csi; + unsigned int port_num = csi_chan->csi_port_num; + unsigned int block = port_num >> 1; + struct clk *cil_clk; + int ret; + + if (block == CSI_CIL_AB) + cil_clk = csi->cilab_clk; + else if (block == CSI_CIL_CD) + cil_clk = csi->cilcd_clk; + else + cil_clk = csi->cilef_clk; + + if (enable) { + ret = clk_set_rate(cil_clk, csi->soc->cil_max_clk_hz); + if (ret) + dev_warn(csi->dev, + "failed to set cil clock rate: %d\n", ret); + + /* enable CIL clock on first open */ + if (atomic_add_return(1, &csi->clk_refcnt) == 1) { + ret = clk_prepare_enable(cil_clk); + if (ret) { + dev_err(csi->dev, + "failed to enable cil clock: %d\n", + ret); + return ret; + } + } + + /* + * On Tegra210, TPG internal logic uses PLLD out along with + * the CIL clock. + * So, enable TPG clock during TPG mode streaming. + */ + if (pg_mode) { + ret = clk_set_rate(csi->tpg_clk, TEGRA210_TPG_CLOCK); + if (ret) + dev_err(csi->dev, + "failed to set tpg clock rate: %d\n", + ret); + + ret = clk_prepare_enable(csi->tpg_clk); + if (ret) { + dev_err(csi->dev, + "failed to enable tpg clock: %d\n", + ret); + return ret; + } + } + + csi_write(csi, port_num, TEGRA_CSI_CLKEN_OVERRIDE, 0); + + /* clean up status */ + pp_write(csi, port_num, TEGRA_CSI_PIXEL_PARSER_STATUS, + 0xFFFFFFFF); + cil_write(csi, port_num, TEGRA_CSI_CIL_STATUS, 0xFFFFFFFF); + cil_write(csi, port_num, TEGRA_CSI_CILX_STATUS, 0xFFFFFFFF); + cil_write(csi, port_num, TEGRA_CSI_CIL_INTERRUPT_MASK, 0x0); + + /* CIL PHY registers setup */ + cil_write(csi, port_num, TEGRA_CSI_CIL_PAD_CONFIG0, 0x0); + cil_write(csi, port_num, TEGRA_CSI_CIL_PHY_CONTROL, 0xA); + + /* + * The CSI unit provides for connection of up to six cameras in + * the system and is organized as three identical instances of + * two MIPI support blocks, each with a separate 4-lane + * interface that can be configured as a single camera with 4 + * lanes or as a dual camera with 2 lanes available for each + * camera. + */ + if (csi_chan->numlanes == 4) { + cil_write(csi, port_num, TEGRA_CSI_CIL_PAD_CONFIG0, + BRICK_CLOCK_A_4X); + cil_write(csi, port_num + 1, + TEGRA_CSI_CIL_PAD_CONFIG0, 0x0); + cil_write(csi, port_num + 1, + TEGRA_CSI_CIL_INTERRUPT_MASK, 0x0); + cil_write(csi, port_num + 1, + TEGRA_CSI_CIL_PHY_CONTROL, 0xA); + csi_write(csi, port_num, TEGRA_CSI_PHY_CIL_COMMAND, + CSI_A_PHY_CIL_ENABLE | CSI_B_PHY_CIL_ENABLE); + } else { + u32 val = ((port_num & 1) == PORT_A) ? + CSI_A_PHY_CIL_ENABLE | CSI_B_PHY_CIL_NOP : + CSI_B_PHY_CIL_ENABLE | CSI_A_PHY_CIL_NOP; + csi_write(csi, port_num, TEGRA_CSI_PHY_CIL_COMMAND, + val); + } + + /* CSI pixel parser registers setup */ + pp_write(csi, port_num, TEGRA_CSI_PIXEL_STREAM_PP_COMMAND, + (0xF << CSI_PP_START_MARKER_FRAME_MAX_OFFSET) | + CSI_PP_SINGLE_SHOT_ENABLE | CSI_PP_RST); + pp_write(csi, port_num, TEGRA_CSI_PIXEL_PARSER_INTERRUPT_MASK, + 0x0); + pp_write(csi, port_num, TEGRA_CSI_PIXEL_STREAM_CONTROL0, + CSI_PP_PACKET_HEADER_SENT | + CSI_PP_DATA_IDENTIFIER_ENABLE | + CSI_PP_WORD_COUNT_SELECT_HEADER | + CSI_PP_CRC_CHECK_ENABLE | CSI_PP_WC_CHECK | + CSI_PP_OUTPUT_FORMAT_STORE | + CSI_PP_HEADER_EC_DISABLE | CSI_PPA_PAD_FRAME_NOPAD | + (port_num & 1)); + pp_write(csi, port_num, TEGRA_CSI_PIXEL_STREAM_CONTROL1, + (0x1 << CSI_PP_TOP_FIELD_FRAME_OFFSET) | + (0x1 << CSI_PP_TOP_FIELD_FRAME_MASK_OFFSET)); + pp_write(csi, port_num, TEGRA_CSI_PIXEL_STREAM_GAP, + 0x14 << PP_FRAME_MIN_GAP_OFFSET); + pp_write(csi, port_num, TEGRA_CSI_PIXEL_STREAM_EXPECTED_FRAME, + 0x0); + pp_write(csi, port_num, TEGRA_CSI_INPUT_STREAM_CONTROL, + (0x3f << CSI_SKIP_PACKET_THRESHOLD_OFFSET) | + (csi_chan->numlanes - 1)); + + /* TPG setup */ + if (pg_mode) { + tpg_write(csi, port_num, + TEGRA_CSI_PATTERN_GENERATOR_CTRL, + ((pg_mode - 1) << PG_MODE_OFFSET) | + PG_ENABLE); + tpg_write(csi, port_num, TEGRA_CSI_PG_PHASE, 0x0); + tpg_write(csi, port_num, TEGRA_CSI_PG_RED_FREQ, + (0x10 << PG_RED_VERT_INIT_FREQ_OFFSET) | + (0x10 << PG_RED_HOR_INIT_FREQ_OFFSET)); + tpg_write(csi, port_num, TEGRA_CSI_PG_RED_FREQ_RATE, + 0x0); + tpg_write(csi, port_num, TEGRA_CSI_PG_GREEN_FREQ, + (0x10 << PG_GREEN_VERT_INIT_FREQ_OFFSET) | + (0x10 << PG_GREEN_HOR_INIT_FREQ_OFFSET)); + tpg_write(csi, port_num, TEGRA_CSI_PG_GREEN_FREQ_RATE, + 0x0); + tpg_write(csi, port_num, TEGRA_CSI_PG_BLUE_FREQ, + (0x10 << PG_BLUE_VERT_INIT_FREQ_OFFSET) | + (0x10 << PG_BLUE_HOR_INIT_FREQ_OFFSET)); + tpg_write(csi, port_num, TEGRA_CSI_PG_BLUE_FREQ_RATE, + 0x0); + } + + pp_write(csi, port_num, TEGRA_CSI_PIXEL_STREAM_PP_COMMAND, + (0xF << CSI_PP_START_MARKER_FRAME_MAX_OFFSET) | + CSI_PP_SINGLE_SHOT_ENABLE | CSI_PP_ENABLE); + } else { + u32 val = pp_read(csi, port_num, + TEGRA_CSI_PIXEL_PARSER_STATUS); + + dev_dbg(csi->dev, "TEGRA_CSI_PIXEL_PARSER_STATUS 0x%08x\n", + val); + + val = cil_read(csi, port_num, TEGRA_CSI_CIL_STATUS); + dev_dbg(csi->dev, "TEGRA_CSI_CIL_STATUS 0x%08x\n", val); + + val = cil_read(csi, port_num, TEGRA_CSI_CILX_STATUS); + dev_dbg(csi->dev, "TEGRA_CSI_CILX_STATUS 0x%08x\n", val); + + pp_write(csi, port_num, TEGRA_CSI_PIXEL_STREAM_PP_COMMAND, + (0xF << CSI_PP_START_MARKER_FRAME_MAX_OFFSET) | + CSI_PP_DISABLE); + + if (pg_mode) { + tpg_write(csi, port_num, + TEGRA_CSI_PATTERN_GENERATOR_CTRL, + ((pg_mode - 1) << PG_MODE_OFFSET) | + PG_DISABLE); + clk_disable_unprepare(csi->tpg_clk); + } + + if (csi_chan->numlanes == 4) { + csi_write(csi, port_num, TEGRA_CSI_PHY_CIL_COMMAND, + CSI_A_PHY_CIL_DISABLE | + CSI_B_PHY_CIL_DISABLE); + + } else { + u32 val = ((port_num & 1) == PORT_A) ? + CSI_A_PHY_CIL_DISABLE | CSI_B_PHY_CIL_NOP : + CSI_B_PHY_CIL_DISABLE | CSI_A_PHY_CIL_NOP; + csi_write(csi, port_num, TEGRA_CSI_PHY_CIL_COMMAND, + val); + } + } + + return 0; +} + +int tegra210_csi_hw_init(struct tegra_csi *csi) +{ + int ret; + + csi->cilab_clk = devm_clk_get(csi->dev, "cilab"); + if (IS_ERR(csi->cilab_clk)) { + ret = PTR_ERR(csi->cilab_clk); + dev_err(csi->dev, "failed to get cilab clock: %d\n", ret); + return ret; + } + + csi->cilcd_clk = devm_clk_get(csi->dev, "cilcd"); + if (IS_ERR(csi->cilcd_clk)) { + ret = PTR_ERR(csi->cilcd_clk); + dev_err(csi->dev, "failed to get cilcd clock: %d\n", ret); + return ret; + } + + csi->cilef_clk = devm_clk_get(csi->dev, "cile"); + if (IS_ERR(csi->cilef_clk)) { + ret = PTR_ERR(csi->cilef_clk); + dev_err(csi->dev, "failed to get cile clock: %d\n", ret); + return ret; + } + + csi->tpg_clk = devm_clk_get(csi->dev, "csi_tpg"); + if (IS_ERR(csi->tpg_clk)) { + ret = PTR_ERR(csi->tpg_clk); + dev_err(csi->dev, "failed to get csi_tpg clock: %d\n", ret); + return ret; + } + + csi->csi_clk = devm_clk_get(csi->dev, "csi"); + if (IS_ERR(csi->csi_clk)) { + ret = PTR_ERR(csi->csi_clk); + dev_err(csi->dev, "failed to get csi clock: %d\n", ret); + return ret; + } + + ret = clk_prepare_enable(csi->csi_clk); + if (ret) { + dev_err(csi->dev, "failed to enable csi clock: %d\n", ret); + return ret; + } + + return 0; +} diff --git a/drivers/staging/media/tegra/tegra210.h b/drivers/staging/media/tegra/tegra210.h new file mode 100644 index 000000000000..7249bf152ce9 --- /dev/null +++ b/drivers/staging/media/tegra/tegra210.h @@ -0,0 +1,190 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 NVIDIA CORPORATION. All rights reserved. + */ + +#ifndef __TEGRA210_H__ +#define __TEGRA210_H__ + +/* Tegra210 VI registers */ +#define TEGRA_VI_SYNCPT_WAIT_TIMEOUT 200 +#define TEGRA_VI_CFG_VI_INCR_SYNCPT 0x000 +#define VI_CFG_VI_INCR_SYNCPT_COND(x) (((x) & 0xff) << 8) +#define VI_CSI_PP_LINE_START(port) (4 + (port) * 4) +#define VI_CSI_PP_FRAME_START(port) (5 + (port) * 4) +#define VI_CSI_MW_REQ_DONE(port) (6 + (port) * 4) +#define VI_CSI_MW_ACK_DONE(port) (7 + (port) * 4) + +#define TEGRA_VI_CFG_VI_INCR_SYNCPT_CNTRL 0x004 +#define TEGRA_VI_CFG_VI_INCR_SYNCPT_NO_STALL BIT(8) +#define TEGRA_VI_CFG_VI_INCR_SYNCPT_ERROR 0x008 +#define TEGRA_VI_CFG_CTXSW 0x020 +#define TEGRA_VI_CFG_INTSTATUS 0x024 +#define TEGRA_VI_CFG_PWM_CONTROL 0x038 +#define TEGRA_VI_CFG_PWM_HIGH_PULSE 0x03c +#define TEGRA_VI_CFG_PWM_LOW_PULSE 0x040 +#define TEGRA_VI_CFG_PWM_SELECT_PULSE_A 0x044 +#define TEGRA_VI_CFG_PWM_SELECT_PULSE_B 0x048 +#define TEGRA_VI_CFG_PWM_SELECT_PULSE_C 0x04c +#define TEGRA_VI_CFG_PWM_SELECT_PULSE_D 0x050 +#define TEGRA_VI_CFG_VGP1 0x064 +#define TEGRA_VI_CFG_VGP2 0x068 +#define TEGRA_VI_CFG_VGP3 0x06c +#define TEGRA_VI_CFG_VGP4 0x070 +#define TEGRA_VI_CFG_VGP5 0x074 +#define TEGRA_VI_CFG_VGP6 0x078 +#define TEGRA_VI_CFG_INTERRUPT_MASK 0x08c +#define TEGRA_VI_CFG_INTERRUPT_TYPE_SELECT 0x090 +#define TEGRA_VI_CFG_INTERRUPT_POLARITY_SELECT 0x094 +#define TEGRA_VI_CFG_INTERRUPT_STATUS 0x098 +#define TEGRA_VI_CFG_VGP_SYNCPT_CONFIG 0x0ac +#define TEGRA_VI_CFG_VI_SW_RESET 0x0b4 +#define TEGRA_VI_CFG_CG_CTRL 0x0b8 +#define VI_CG_2ND_LEVEL_EN 0x1 +#define TEGRA_VI_CFG_VI_MCCIF_FIFOCTRL 0x0e4 +#define TEGRA_VI_CFG_TIMEOUT_WCOAL_VI 0x0e8 +#define TEGRA_VI_CFG_DVFS 0x0f0 +#define TEGRA_VI_CFG_RESERVE 0x0f4 +#define TEGRA_VI_CFG_RESERVE_1 0x0f8 + +/* Tegra210 CSI registers */ +#define TEGRA_VI_CSI_SW_RESET 0x000 +#define TEGRA_VI_CSI_SINGLE_SHOT 0x004 +#define SINGLE_SHOT_CAPTURE 0x1 +#define TEGRA_VI_CSI_SINGLE_SHOT_STATE_UPDATE 0x008 +#define TEGRA_VI_CSI_IMAGE_DEF 0x00c +#define BYPASS_PXL_TRANSFORM_OFFSET 24 +#define IMAGE_DEF_FORMAT_OFFSET 16 +#define IMAGE_DEF_DEST_MEM 0x1 +#define TEGRA_VI_CSI_RGB2Y_CTRL 0x010 +#define TEGRA_VI_CSI_MEM_TILING 0x014 +#define TEGRA_VI_CSI_IMAGE_SIZE 0x018 +#define IMAGE_SIZE_HEIGHT_OFFSET 16 +#define TEGRA_VI_CSI_IMAGE_SIZE_WC 0x01c +#define TEGRA_VI_CSI_IMAGE_DT 0x020 +#define TEGRA_VI_CSI_SURFACE0_OFFSET_MSB 0x024 +#define TEGRA_VI_CSI_SURFACE0_OFFSET_LSB 0x028 +#define TEGRA_VI_CSI_SURFACE1_OFFSET_MSB 0x02c +#define TEGRA_VI_CSI_SURFACE1_OFFSET_LSB 0x030 +#define TEGRA_VI_CSI_SURFACE2_OFFSET_MSB 0x034 +#define TEGRA_VI_CSI_SURFACE2_OFFSET_LSB 0x038 +#define TEGRA_VI_CSI_SURFACE0_BF_OFFSET_MSB 0x03c +#define TEGRA_VI_CSI_SURFACE0_BF_OFFSET_LSB 0x040 +#define TEGRA_VI_CSI_SURFACE1_BF_OFFSET_MSB 0x044 +#define TEGRA_VI_CSI_SURFACE1_BF_OFFSET_LSB 0x048 +#define TEGRA_VI_CSI_SURFACE2_BF_OFFSET_MSB 0x04c +#define TEGRA_VI_CSI_SURFACE2_BF_OFFSET_LSB 0x050 +#define TEGRA_VI_CSI_SURFACE0_STRIDE 0x054 +#define TEGRA_VI_CSI_SURFACE1_STRIDE 0x058 +#define TEGRA_VI_CSI_SURFACE2_STRIDE 0x05c +#define TEGRA_VI_CSI_SURFACE_HEIGHT0 0x060 +#define TEGRA_VI_CSI_ISPINTF_CONFIG 0x064 +#define TEGRA_VI_CSI_ERROR_STATUS 0x084 +#define TEGRA_VI_CSI_ERROR_INT_MASK 0x088 +#define TEGRA_VI_CSI_WD_CTRL 0x08c +#define TEGRA_VI_CSI_WD_PERIOD 0x090 + +/* Tegra210 CSI Pixel Parser registers: Starts from 0x838, offset 0x0 */ +#define TEGRA_CSI_INPUT_STREAM_CONTROL 0x000 +#define CSI_SKIP_PACKET_THRESHOLD_OFFSET 16 + +#define TEGRA_CSI_PIXEL_STREAM_CONTROL0 0x004 +#define CSI_PP_PACKET_HEADER_SENT BIT(4) +#define CSI_PP_DATA_IDENTIFIER_ENABLE BIT(5) +#define CSI_PP_WORD_COUNT_SELECT_HEADER BIT(6) +#define CSI_PP_CRC_CHECK_ENABLE BIT(7) +#define CSI_PP_WC_CHECK BIT(8) +#define CSI_PP_OUTPUT_FORMAT_STORE (0x3 << 16) +#define CSI_PP_HEADER_EC_DISABLE (0x1 << 27) +#define CSI_PPA_PAD_FRAME_NOPAD (0x2 << 28) + +#define TEGRA_CSI_PIXEL_STREAM_CONTROL1 0x008 +#define CSI_PP_TOP_FIELD_FRAME_OFFSET 0 +#define CSI_PP_TOP_FIELD_FRAME_MASK_OFFSET 4 + +#define TEGRA_CSI_PIXEL_STREAM_GAP 0x00c +#define PP_FRAME_MIN_GAP_OFFSET 16 + +#define TEGRA_CSI_PIXEL_STREAM_PP_COMMAND 0x010 +#define CSI_PP_ENABLE 0x1 +#define CSI_PP_DISABLE 0x2 +#define CSI_PP_RST 0x3 +#define CSI_PP_SINGLE_SHOT_ENABLE (0x1 << 2) +#define CSI_PP_START_MARKER_FRAME_MAX_OFFSET 12 + +#define TEGRA_CSI_PIXEL_STREAM_EXPECTED_FRAME 0x014 +#define TEGRA_CSI_PIXEL_PARSER_INTERRUPT_MASK 0x018 +#define TEGRA_CSI_PIXEL_PARSER_STATUS 0x01c +#define TEGRA_CSI_CSI_SW_SENSOR_RESET 0x020 + +/* Tegra210 CSI PHY registers */ +/* CSI_PHY_CIL_COMMAND_0 offset 0x0d0 from TEGRA_CSI_PIXEL_PARSER_0_BASE */ +#define TEGRA_CSI_PHY_CIL_COMMAND 0x0d0 +#define CSI_A_PHY_CIL_NOP 0x0 +#define CSI_A_PHY_CIL_ENABLE 0x1 +#define CSI_A_PHY_CIL_DISABLE 0x2 +#define CSI_A_PHY_CIL_ENABLE_MASK 0x3 +#define CSI_B_PHY_CIL_NOP (0x0 << 8) +#define CSI_B_PHY_CIL_ENABLE (0x1 << 8) +#define CSI_B_PHY_CIL_DISABLE (0x2 << 8) +#define CSI_B_PHY_CIL_ENABLE_MASK (0x3 << 8) + +#define TEGRA_CSI_CIL_PAD_CONFIG0 0x000 +#define BRICK_CLOCK_A_4X (0x1 << 16) +#define BRICK_CLOCK_B_4X (0x2 << 16) +#define TEGRA_CSI_CIL_PAD_CONFIG1 0x004 +#define TEGRA_CSI_CIL_PHY_CONTROL 0x008 +#define TEGRA_CSI_CIL_INTERRUPT_MASK 0x00c +#define TEGRA_CSI_CIL_STATUS 0x010 +#define TEGRA_CSI_CILX_STATUS 0x014 +#define TEGRA_CSI_CIL_ESCAPE_MODE_COMMAND 0x018 +#define TEGRA_CSI_CIL_ESCAPE_MODE_DATA 0x01c +#define TEGRA_CSI_CIL_SW_SENSOR_RESET 0x020 + +#define TEGRA_CSI_PATTERN_GENERATOR_CTRL 0x000 +#define PG_MODE_OFFSET 2 +#define PG_ENABLE 0x1 +#define PG_DISABLE 0x0 + +#define PG_VBLANK_OFFSET 16 +#define TEGRA_CSI_PG_BLANK 0x004 +#define TEGRA_CSI_PG_PHASE 0x008 +#define TEGRA_CSI_PG_RED_FREQ 0x00c +#define PG_RED_VERT_INIT_FREQ_OFFSET 16 +#define PG_RED_HOR_INIT_FREQ_OFFSET 0 + +#define TEGRA_CSI_PG_RED_FREQ_RATE 0x010 +#define TEGRA_CSI_PG_GREEN_FREQ 0x014 +#define PG_GREEN_VERT_INIT_FREQ_OFFSET 16 +#define PG_GREEN_HOR_INIT_FREQ_OFFSET 0 + +#define TEGRA_CSI_PG_GREEN_FREQ_RATE 0x018 +#define TEGRA_CSI_PG_BLUE_FREQ 0x01c +#define PG_BLUE_VERT_INIT_FREQ_OFFSET 16 +#define PG_BLUE_HOR_INIT_FREQ_OFFSET 0 + +#define TEGRA_CSI_PG_BLUE_FREQ_RATE 0x020 +#define TEGRA_CSI_PG_AOHDR 0x024 + +#define TEGRA_CSI_DPCM_CTRL_A 0xa2c +#define TEGRA_CSI_DPCM_CTRL_B 0xa30 + +/* Other CSI registers: Starts from 0xa44, offset 0x20c */ +#define TEGRA_CSI_STALL_COUNTER 0x20c +#define TEGRA_CSI_CSI_READONLY_STATUS 0x210 +#define TEGRA_CSI_CSI_SW_STATUS_RESET 0x214 +#define TEGRA_CSI_CLKEN_OVERRIDE 0x218 +#define TEGRA_CSI_DEBUG_CONTROL 0x21c +#define TEGRA_CSI_DEBUG_COUNTER_0 0x220 +#define TEGRA_CSI_DEBUG_COUNTER_1 0x224 +#define TEGRA_CSI_DEBUG_COUNTER_2 0x228 + +/* Tegra210 CSI Pixel Parser registers */ +#define TEGRA_CSI_PIXEL_PARSER_0_BASE 0x0838 +#define TEGRA_CSI_PIXEL_PARSER_1_BASE 0x086c +#define TEGRA_CSI_PIXEL_PARSER_2_BASE 0x1038 +#define TEGRA_CSI_PIXEL_PARSER_3_BASE 0x106c +#define TEGRA_CSI_PIXEL_PARSER_4_BASE 0x1838 +#define TEGRA_CSI_PIXEL_PARSER_5_BASE 0x186c + +#endif