From c6a423459a233669b280e1a4e4836881d77c9ff0 Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Tue, 23 Jun 2020 10:05:57 +0100 Subject: [PATCH] drivers: media: Remove the downstream version of bcm2835-unicam About to be replaced by the upstream version. Signed-off-by: Dave Stevenson --- drivers/media/platform/bcm2835/Kconfig | 14 - drivers/media/platform/bcm2835/Makefile | 3 - .../media/platform/bcm2835/bcm2835-unicam.c | 2873 ----------------- .../media/platform/bcm2835/vc4-regs-unicam.h | 253 -- 4 files changed, 3143 deletions(-) delete mode 100644 drivers/media/platform/bcm2835/Kconfig delete mode 100644 drivers/media/platform/bcm2835/Makefile delete mode 100644 drivers/media/platform/bcm2835/bcm2835-unicam.c delete mode 100644 drivers/media/platform/bcm2835/vc4-regs-unicam.h --- a/drivers/media/platform/bcm2835/Kconfig +++ /dev/null @@ -1,14 +0,0 @@ -# Broadcom VideoCore4 V4L2 camera support - -config VIDEO_BCM2835_UNICAM - tristate "Broadcom BCM2835 Unicam video capture driver" - depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && MEDIA_CONTROLLER - depends on ARCH_BCM2835 || COMPILE_TEST - select VIDEOBUF2_DMA_CONTIG - select V4L2_FWNODE - help - Say Y here to enable V4L2 subdevice for CSI2 receiver. - This is a V4L2 subdevice that interfaces directly to the VC4 peripheral. - - To compile this driver as a module, choose M here. The module - will be called bcm2835-unicam. --- a/drivers/media/platform/bcm2835/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -# Makefile for BCM2835 Unicam driver - -obj-$(CONFIG_VIDEO_BCM2835_UNICAM) += bcm2835-unicam.o --- a/drivers/media/platform/bcm2835/bcm2835-unicam.c +++ /dev/null @@ -1,2873 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * BCM2835 Unicam Capture Driver - * - * Copyright (C) 2017-2020 - Raspberry Pi (Trading) Ltd. - * - * Dave Stevenson - * - * Based on TI am437x driver by - * Benoit Parrot - * Lad, Prabhakar - * - * and TI CAL camera interface driver by - * Benoit Parrot - * - * - * There are two camera drivers in the kernel for BCM283x - this one - * and bcm2835-camera (currently in staging). - * - * This driver directly controls the Unicam peripheral - there is no - * involvement with the VideoCore firmware. Unicam receives CSI-2 or - * CCP2 data and writes it into SDRAM. - * The only potential processing options are to repack Bayer data into an - * alternate format, and applying windowing. - * The repacking does not shift the data, so can repack V4L2_PIX_FMT_Sxxxx10P - * to V4L2_PIX_FMT_Sxxxx10, or V4L2_PIX_FMT_Sxxxx12P to V4L2_PIX_FMT_Sxxxx12, - * but not generically up to V4L2_PIX_FMT_Sxxxx16. The driver will add both - * formats where the relevant formats are defined, and will automatically - * configure the repacking as required. - * Support for windowing may be added later. - * - * It should be possible to connect this driver to any sensor with a - * suitable output interface and V4L2 subdevice driver. - * - * bcm2835-camera uses the VideoCore firmware to control the sensor, - * Unicam, ISP, and all tuner control loops. Fully processed frames are - * delivered to the driver by the firmware. It only has sensor drivers - * for Omnivision OV5647, and Sony IMX219 sensors. - * - * The two drivers are mutually exclusive for the same Unicam instance. - * The VideoCore firmware checks the device tree configuration during boot. - * If it finds device tree nodes called csi0 or csi1 it will block the - * firmware from accessing the peripheral, and bcm2835-camera will - * not be able to stream data. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "vc4-regs-unicam.h" - -#define UNICAM_MODULE_NAME "unicam" -#define UNICAM_VERSION "0.1.0" - -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Debug level 0-3"); - -#define unicam_dbg(level, dev, fmt, arg...) \ - v4l2_dbg(level, debug, &(dev)->v4l2_dev, fmt, ##arg) -#define unicam_info(dev, fmt, arg...) \ - v4l2_info(&(dev)->v4l2_dev, fmt, ##arg) -#define unicam_err(dev, fmt, arg...) \ - v4l2_err(&(dev)->v4l2_dev, fmt, ##arg) - -/* To protect against a dodgy sensor driver never returning an error from - * enum_mbus_code, set a maximum index value to be used. - */ -#define MAX_ENUM_MBUS_CODE 128 - -/* - * Stride is a 16 bit register, but also has to be a multiple of 32. - */ -#define BPL_ALIGNMENT 32 -#define MAX_BYTESPERLINE ((1 << 16) - BPL_ALIGNMENT) -/* - * Max width is therefore determined by the max stride divided by - * the number of bits per pixel. Take 32bpp as a - * worst case. - * No imposed limit on the height, so adopt a square image for want - * of anything better. - */ -#define MAX_WIDTH (MAX_BYTESPERLINE / 4) -#define MAX_HEIGHT MAX_WIDTH -/* Define a nominal minimum image size */ -#define MIN_WIDTH 16 -#define MIN_HEIGHT 16 -/* Default size of the embedded buffer */ -#define UNICAM_EMBEDDED_SIZE 8192 - -/* - * Size of the dummy buffer. Can be any size really, but the DMA - * allocation works in units of page sizes. - */ -#define DUMMY_BUF_SIZE (PAGE_SIZE) - -enum pad_types { - IMAGE_PAD, - METADATA_PAD, - MAX_NODES -}; - -/* - * struct unicam_fmt - Unicam media bus format information - * @pixelformat: V4L2 pixel format FCC identifier. 0 if n/a. - * @repacked_fourcc: V4L2 pixel format FCC identifier if the data is expanded - * out to 16bpp. 0 if n/a. - * @code: V4L2 media bus format code. - * @depth: Bits per pixel as delivered from the source. - * @csi_dt: CSI data type. - * @check_variants: Flag to denote that there are multiple mediabus formats - * still in the list that could match this V4L2 format. - */ -struct unicam_fmt { - u32 fourcc; - u32 repacked_fourcc; - u32 code; - u8 depth; - u8 csi_dt; - u8 check_variants; -}; - -static const struct unicam_fmt formats[] = { - /* YUV Formats */ - { - .fourcc = V4L2_PIX_FMT_YUYV, - .code = MEDIA_BUS_FMT_YUYV8_2X8, - .depth = 16, - .csi_dt = 0x1e, - .check_variants = 1, - }, { - .fourcc = V4L2_PIX_FMT_UYVY, - .code = MEDIA_BUS_FMT_UYVY8_2X8, - .depth = 16, - .csi_dt = 0x1e, - .check_variants = 1, - }, { - .fourcc = V4L2_PIX_FMT_YVYU, - .code = MEDIA_BUS_FMT_YVYU8_2X8, - .depth = 16, - .csi_dt = 0x1e, - .check_variants = 1, - }, { - .fourcc = V4L2_PIX_FMT_VYUY, - .code = MEDIA_BUS_FMT_VYUY8_2X8, - .depth = 16, - .csi_dt = 0x1e, - .check_variants = 1, - }, { - .fourcc = V4L2_PIX_FMT_YUYV, - .code = MEDIA_BUS_FMT_YUYV8_1X16, - .depth = 16, - .csi_dt = 0x1e, - }, { - .fourcc = V4L2_PIX_FMT_UYVY, - .code = MEDIA_BUS_FMT_UYVY8_1X16, - .depth = 16, - .csi_dt = 0x1e, - }, { - .fourcc = V4L2_PIX_FMT_YVYU, - .code = MEDIA_BUS_FMT_YVYU8_1X16, - .depth = 16, - .csi_dt = 0x1e, - }, { - .fourcc = V4L2_PIX_FMT_VYUY, - .code = MEDIA_BUS_FMT_VYUY8_1X16, - .depth = 16, - .csi_dt = 0x1e, - }, { - /* RGB Formats */ - .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */ - .code = MEDIA_BUS_FMT_RGB565_2X8_LE, - .depth = 16, - .csi_dt = 0x22, - }, { - .fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */ - .code = MEDIA_BUS_FMT_RGB565_2X8_BE, - .depth = 16, - .csi_dt = 0x22 - }, { - .fourcc = V4L2_PIX_FMT_RGB555, /* gggbbbbb arrrrrgg */ - .code = MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE, - .depth = 16, - .csi_dt = 0x21, - }, { - .fourcc = V4L2_PIX_FMT_RGB555X, /* arrrrrgg gggbbbbb */ - .code = MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE, - .depth = 16, - .csi_dt = 0x21, - }, { - .fourcc = V4L2_PIX_FMT_RGB24, /* rgb */ - .code = MEDIA_BUS_FMT_RGB888_1X24, - .depth = 24, - .csi_dt = 0x24, - }, { - .fourcc = V4L2_PIX_FMT_BGR24, /* bgr */ - .code = MEDIA_BUS_FMT_BGR888_1X24, - .depth = 24, - .csi_dt = 0x24, - }, { - .fourcc = V4L2_PIX_FMT_RGB32, /* argb */ - .code = MEDIA_BUS_FMT_ARGB8888_1X32, - .depth = 32, - .csi_dt = 0x0, - }, { - /* Bayer Formats */ - .fourcc = V4L2_PIX_FMT_SBGGR8, - .code = MEDIA_BUS_FMT_SBGGR8_1X8, - .depth = 8, - .csi_dt = 0x2a, - }, { - .fourcc = V4L2_PIX_FMT_SGBRG8, - .code = MEDIA_BUS_FMT_SGBRG8_1X8, - .depth = 8, - .csi_dt = 0x2a, - }, { - .fourcc = V4L2_PIX_FMT_SGRBG8, - .code = MEDIA_BUS_FMT_SGRBG8_1X8, - .depth = 8, - .csi_dt = 0x2a, - }, { - .fourcc = V4L2_PIX_FMT_SRGGB8, - .code = MEDIA_BUS_FMT_SRGGB8_1X8, - .depth = 8, - .csi_dt = 0x2a, - }, { - .fourcc = V4L2_PIX_FMT_SBGGR10P, - .repacked_fourcc = V4L2_PIX_FMT_SBGGR10, - .code = MEDIA_BUS_FMT_SBGGR10_1X10, - .depth = 10, - .csi_dt = 0x2b, - }, { - .fourcc = V4L2_PIX_FMT_SGBRG10P, - .repacked_fourcc = V4L2_PIX_FMT_SGBRG10, - .code = MEDIA_BUS_FMT_SGBRG10_1X10, - .depth = 10, - .csi_dt = 0x2b, - }, { - .fourcc = V4L2_PIX_FMT_SGRBG10P, - .repacked_fourcc = V4L2_PIX_FMT_SGRBG10, - .code = MEDIA_BUS_FMT_SGRBG10_1X10, - .depth = 10, - .csi_dt = 0x2b, - }, { - .fourcc = V4L2_PIX_FMT_SRGGB10P, - .repacked_fourcc = V4L2_PIX_FMT_SRGGB10, - .code = MEDIA_BUS_FMT_SRGGB10_1X10, - .depth = 10, - .csi_dt = 0x2b, - }, { - .fourcc = V4L2_PIX_FMT_SBGGR12P, - .repacked_fourcc = V4L2_PIX_FMT_SBGGR12, - .code = MEDIA_BUS_FMT_SBGGR12_1X12, - .depth = 12, - .csi_dt = 0x2c, - }, { - .fourcc = V4L2_PIX_FMT_SGBRG12P, - .repacked_fourcc = V4L2_PIX_FMT_SGBRG12, - .code = MEDIA_BUS_FMT_SGBRG12_1X12, - .depth = 12, - .csi_dt = 0x2c, - }, { - .fourcc = V4L2_PIX_FMT_SGRBG12P, - .repacked_fourcc = V4L2_PIX_FMT_SGRBG12, - .code = MEDIA_BUS_FMT_SGRBG12_1X12, - .depth = 12, - .csi_dt = 0x2c, - }, { - .fourcc = V4L2_PIX_FMT_SRGGB12P, - .repacked_fourcc = V4L2_PIX_FMT_SRGGB12, - .code = MEDIA_BUS_FMT_SRGGB12_1X12, - .depth = 12, - .csi_dt = 0x2c, - }, { - .fourcc = V4L2_PIX_FMT_SBGGR14P, - .code = MEDIA_BUS_FMT_SBGGR14_1X14, - .depth = 14, - .csi_dt = 0x2d, - }, { - .fourcc = V4L2_PIX_FMT_SGBRG14P, - .code = MEDIA_BUS_FMT_SGBRG14_1X14, - .depth = 14, - .csi_dt = 0x2d, - }, { - .fourcc = V4L2_PIX_FMT_SGRBG14P, - .code = MEDIA_BUS_FMT_SGRBG14_1X14, - .depth = 14, - .csi_dt = 0x2d, - }, { - .fourcc = V4L2_PIX_FMT_SRGGB14P, - .code = MEDIA_BUS_FMT_SRGGB14_1X14, - .depth = 14, - .csi_dt = 0x2d, - }, { - /* - * 16 bit Bayer formats could be supported, but there is no CSI2 - * data_type defined for raw 16, and no sensors that produce it at - * present. - */ - - /* Greyscale formats */ - .fourcc = V4L2_PIX_FMT_GREY, - .code = MEDIA_BUS_FMT_Y8_1X8, - .depth = 8, - .csi_dt = 0x2a, - }, { - .fourcc = V4L2_PIX_FMT_Y10P, - .repacked_fourcc = V4L2_PIX_FMT_Y10, - .code = MEDIA_BUS_FMT_Y10_1X10, - .depth = 10, - .csi_dt = 0x2b, - }, { - /* NB There is no packed V4L2 fourcc for this format. */ - .repacked_fourcc = V4L2_PIX_FMT_Y12, - .code = MEDIA_BUS_FMT_Y12_1X12, - .depth = 12, - .csi_dt = 0x2c, - }, - /* Embedded data format */ - { - .fourcc = V4L2_META_FMT_SENSOR_DATA, - .code = MEDIA_BUS_FMT_SENSOR_DATA, - .depth = 8, - } -}; - -struct unicam_dmaqueue { - struct list_head active; -}; - -struct unicam_buffer { - struct vb2_v4l2_buffer vb; - struct list_head list; -}; - -struct unicam_cfg { - /* peripheral base address */ - void __iomem *base; - /* clock gating base address */ - void __iomem *clk_gate_base; -}; - -#define MAX_POSSIBLE_PIX_FMTS (ARRAY_SIZE(formats)) - -struct unicam_node { - int registered; - int open; - int streaming; - unsigned int pad_id; - /* Pointer pointing to current v4l2_buffer */ - struct unicam_buffer *cur_frm; - /* Pointer pointing to next v4l2_buffer */ - struct unicam_buffer *next_frm; - /* video capture */ - const struct unicam_fmt *fmt; - /* Used to store current pixel format */ - struct v4l2_format v_fmt; - /* Used to store current mbus frame format */ - struct v4l2_mbus_framefmt m_fmt; - /* Buffer queue used in video-buf */ - struct vb2_queue buffer_queue; - /* Queue of filled frames */ - struct unicam_dmaqueue dma_queue; - /* IRQ lock for DMA queue */ - spinlock_t dma_queue_lock; - /* lock used to access this structure */ - struct mutex lock; - /* Identifies video device for this channel */ - struct video_device video_dev; - /* Pointer to the parent handle */ - struct unicam_device *dev; - struct media_pad pad; - struct v4l2_ctrl_handler ctrl_handler; - unsigned int embedded_lines; - /* - * Dummy buffer intended to be used by unicam - * if we have no other queued buffers to swap to. - */ - void *dummy_buf_cpu_addr; - dma_addr_t dummy_buf_dma_addr; -}; - -struct unicam_device { - /* V4l2 specific parameters */ - - struct v4l2_fwnode_endpoint endpoint; - - struct v4l2_async_subdev asd; - - /* unicam cfg */ - struct unicam_cfg cfg; - /* clock handle */ - struct clk *clock; - /* V4l2 device */ - struct v4l2_device v4l2_dev; - struct media_device mdev; - - /* parent device */ - struct platform_device *pdev; - /* subdevice async Notifier */ - struct v4l2_async_notifier notifier; - unsigned int sequence; - - /* ptr to sub device */ - struct v4l2_subdev *sensor; - /* Pad config for the sensor */ - struct v4l2_subdev_pad_config *sensor_config; - - unsigned int virtual_channel; - enum v4l2_mbus_type bus_type; - /* - * Stores bus.mipi_csi2.flags for CSI2 sensors, or - * bus.mipi_csi1.strobe for CCP2. - */ - unsigned int bus_flags; - unsigned int max_data_lanes; - unsigned int active_data_lanes; - bool sensor_embedded_data; - - struct unicam_node node[MAX_NODES]; -}; - -/* Hardware access */ -#define clk_write(dev, val) writel((val) | 0x5a000000, (dev)->clk_gate_base) -#define clk_read(dev) readl((dev)->clk_gate_base) - -#define reg_read(dev, offset) readl((dev)->base + (offset)) -#define reg_write(dev, offset, val) writel(val, (dev)->base + (offset)) - -#define reg_read_field(dev, offset, mask) get_field(reg_read((dev), (offset), \ - mask)) - -static inline int get_field(u32 value, u32 mask) -{ - return (value & mask) >> __ffs(mask); -} - -static inline void set_field(u32 *valp, u32 field, u32 mask) -{ - u32 val = *valp; - - val &= ~mask; - val |= (field << __ffs(mask)) & mask; - *valp = val; -} - -static inline void reg_write_field(struct unicam_cfg *dev, u32 offset, - u32 field, u32 mask) -{ - u32 val = reg_read((dev), (offset)); - - set_field(&val, field, mask); - reg_write((dev), (offset), val); -} - -/* Power management functions */ -static inline int unicam_runtime_get(struct unicam_device *dev) -{ - return pm_runtime_get_sync(&dev->pdev->dev); -} - -static inline void unicam_runtime_put(struct unicam_device *dev) -{ - pm_runtime_put_sync(&dev->pdev->dev); -} - -/* Format setup functions */ -static const struct unicam_fmt *find_format_by_code(u32 code) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(formats); i++) { - if (formats[i].code == code) - return &formats[i]; - } - - return NULL; -} - -static int check_mbus_format(struct unicam_device *dev, - const struct unicam_fmt *format) -{ - struct v4l2_subdev_mbus_code_enum mbus_code; - int ret = 0; - int i; - - for (i = 0; !ret && i < MAX_ENUM_MBUS_CODE; i++) { - memset(&mbus_code, 0, sizeof(mbus_code)); - mbus_code.index = i; - mbus_code.pad = IMAGE_PAD; - mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE; - - ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code, - NULL, &mbus_code); - - if (!ret && mbus_code.code == format->code) - return 1; - } - - return 0; -} - -static const struct unicam_fmt *find_format_by_pix(struct unicam_device *dev, - u32 pixelformat) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(formats); i++) { - if (formats[i].fourcc == pixelformat || - formats[i].repacked_fourcc == pixelformat) { - if (formats[i].check_variants && - !check_mbus_format(dev, &formats[i])) - continue; - return &formats[i]; - } - } - - return NULL; -} - -static inline unsigned int bytes_per_line(u32 width, - const struct unicam_fmt *fmt, - u32 v4l2_fourcc) -{ - if (v4l2_fourcc == fmt->repacked_fourcc) - /* Repacking always goes to 16bpp */ - return ALIGN(width << 1, BPL_ALIGNMENT); - else - return ALIGN((width * fmt->depth) >> 3, BPL_ALIGNMENT); -} - -static int __subdev_get_format(struct unicam_device *dev, - struct v4l2_mbus_framefmt *fmt, int pad_id) -{ - struct v4l2_subdev_format sd_fmt = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - .pad = pad_id - }; - int ret; - - ret = v4l2_subdev_call(dev->sensor, pad, get_fmt, dev->sensor_config, - &sd_fmt); - if (ret < 0) - return ret; - - *fmt = sd_fmt.format; - - unicam_dbg(1, dev, "%s %dx%d code:%04x\n", __func__, - fmt->width, fmt->height, fmt->code); - - return 0; -} - -static int __subdev_set_format(struct unicam_device *dev, - struct v4l2_mbus_framefmt *fmt, int pad_id) -{ - struct v4l2_subdev_format sd_fmt = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - .pad = pad_id - }; - int ret; - - sd_fmt.format = *fmt; - - ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_config, - &sd_fmt); - if (ret < 0) - return ret; - - if (pad_id == IMAGE_PAD) - unicam_dbg(1, dev, "%s %dx%d code:%04x\n", __func__, fmt->width, - fmt->height, fmt->code); - else - unicam_dbg(1, dev, "%s Embedded data code:%04x\n", __func__, - sd_fmt.format.code); - - return 0; -} - -static int unicam_calc_format_size_bpl(struct unicam_device *dev, - const struct unicam_fmt *fmt, - struct v4l2_format *f) -{ - unsigned int min_bytesperline; - - v4l_bound_align_image(&f->fmt.pix.width, MIN_WIDTH, MAX_WIDTH, 2, - &f->fmt.pix.height, MIN_HEIGHT, MAX_HEIGHT, 0, - 0); - - min_bytesperline = bytes_per_line(f->fmt.pix.width, fmt, - f->fmt.pix.pixelformat); - - if (f->fmt.pix.bytesperline > min_bytesperline && - f->fmt.pix.bytesperline <= MAX_BYTESPERLINE) - f->fmt.pix.bytesperline = ALIGN(f->fmt.pix.bytesperline, - BPL_ALIGNMENT); - else - f->fmt.pix.bytesperline = min_bytesperline; - - f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; - - unicam_dbg(3, dev, "%s: fourcc: %08X size: %dx%d bpl:%d img_size:%d\n", - __func__, - f->fmt.pix.pixelformat, - f->fmt.pix.width, f->fmt.pix.height, - f->fmt.pix.bytesperline, f->fmt.pix.sizeimage); - - return 0; -} - -static int unicam_reset_format(struct unicam_node *node) -{ - struct unicam_device *dev = node->dev; - struct v4l2_mbus_framefmt mbus_fmt; - int ret; - - if (dev->sensor_embedded_data || node->pad_id != METADATA_PAD) { - ret = __subdev_get_format(dev, &mbus_fmt, node->pad_id); - if (ret) { - unicam_err(dev, "Failed to get_format - ret %d\n", ret); - return ret; - } - - if (mbus_fmt.code != node->fmt->code) { - unicam_err(dev, "code mismatch - fmt->code %08x, mbus_fmt.code %08x\n", - node->fmt->code, mbus_fmt.code); - return ret; - } - } - - if (node->pad_id == IMAGE_PAD) { - v4l2_fill_pix_format(&node->v_fmt.fmt.pix, &mbus_fmt); - node->v_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - unicam_calc_format_size_bpl(dev, node->fmt, &node->v_fmt); - } else { - node->v_fmt.type = V4L2_BUF_TYPE_META_CAPTURE; - node->v_fmt.fmt.meta.dataformat = V4L2_META_FMT_SENSOR_DATA; - if (dev->sensor_embedded_data) { - node->v_fmt.fmt.meta.buffersize = - mbus_fmt.width * mbus_fmt.height; - node->embedded_lines = mbus_fmt.height; - } else { - node->v_fmt.fmt.meta.buffersize = UNICAM_EMBEDDED_SIZE; - node->embedded_lines = 1; - } - } - - node->m_fmt = mbus_fmt; - return 0; -} - -static void unicam_wr_dma_addr(struct unicam_cfg *cfg, dma_addr_t dmaaddr, - unsigned int buffer_size, int pad_id) -{ - dma_addr_t endaddr = dmaaddr + buffer_size; - - /* - * dmaaddr and endaddr should be a 32-bit address with the top two bits - * set to 0x3 to signify uncached access through the Videocore memory - * controller. - */ - BUG_ON((dmaaddr >> 30) != 0x3 && (endaddr >> 30) != 0x3); - - if (pad_id == IMAGE_PAD) { - reg_write(cfg, UNICAM_IBSA0, dmaaddr); - reg_write(cfg, UNICAM_IBEA0, endaddr); - } else { - reg_write(cfg, UNICAM_DBSA0, dmaaddr); - reg_write(cfg, UNICAM_DBEA0, endaddr); - } -} - -static inline unsigned int unicam_get_lines_done(struct unicam_device *dev) -{ - dma_addr_t start_addr, cur_addr; - unsigned int stride = dev->node[IMAGE_PAD].v_fmt.fmt.pix.bytesperline; - struct unicam_buffer *frm = dev->node[IMAGE_PAD].cur_frm; - - if (!frm) - return 0; - - start_addr = vb2_dma_contig_plane_dma_addr(&frm->vb.vb2_buf, 0); - cur_addr = reg_read(&dev->cfg, UNICAM_IBWP); - return (unsigned int)(cur_addr - start_addr) / stride; -} - -static inline void unicam_schedule_next_buffer(struct unicam_node *node) -{ - struct unicam_device *dev = node->dev; - struct unicam_dmaqueue *dma_q = &node->dma_queue; - struct unicam_buffer *buf; - unsigned int size; - dma_addr_t addr; - - buf = list_entry(dma_q->active.next, struct unicam_buffer, list); - node->next_frm = buf; - list_del(&buf->list); - - addr = vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0); - size = (node->pad_id == IMAGE_PAD) ? - dev->node[IMAGE_PAD].v_fmt.fmt.pix.sizeimage : - dev->node[METADATA_PAD].v_fmt.fmt.meta.buffersize; - - unicam_wr_dma_addr(&dev->cfg, addr, size, node->pad_id); -} - -static inline void unicam_schedule_dummy_buffer(struct unicam_node *node) -{ - struct unicam_device *dev = node->dev; - dma_addr_t addr = node->dummy_buf_dma_addr; - - unicam_dbg(3, dev, "Scheduling dummy buffer for node %d\n", - node->pad_id); - - unicam_wr_dma_addr(&dev->cfg, addr, DUMMY_BUF_SIZE, node->pad_id); - node->next_frm = NULL; -} - -static inline void unicam_process_buffer_complete(struct unicam_node *node, - unsigned int sequence) -{ - node->cur_frm->vb.field = node->m_fmt.field; - node->cur_frm->vb.sequence = sequence; - - vb2_buffer_done(&node->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE); -} - -static int unicam_num_nodes_streaming(struct unicam_device *dev) -{ - return dev->node[IMAGE_PAD].streaming + - dev->node[METADATA_PAD].streaming; -} - -static int unicam_all_nodes_streaming(struct unicam_device *dev) -{ - int ret; - - ret = dev->node[IMAGE_PAD].open && dev->node[IMAGE_PAD].streaming; - ret &= !dev->node[METADATA_PAD].open || - dev->node[METADATA_PAD].streaming; - return ret; -} - -static void unicam_queue_event_sof(struct unicam_device *unicam) -{ - struct v4l2_event event = { - .type = V4L2_EVENT_FRAME_SYNC, - .u.frame_sync.frame_sequence = unicam->sequence, - }; - - v4l2_event_queue(&unicam->node[IMAGE_PAD].video_dev, &event); -} - -/* - * unicam_isr : ISR handler for unicam capture - * @irq: irq number - * @dev_id: dev_id ptr - * - * It changes status of the captured buffer, takes next buffer from the queue - * and sets its address in unicam registers - */ -static irqreturn_t unicam_isr(int irq, void *dev) -{ - struct unicam_device *unicam = (struct unicam_device *)dev; - struct unicam_cfg *cfg = &unicam->cfg; - unsigned int lines_done = unicam_get_lines_done(dev); - unsigned int sequence = unicam->sequence; - int num_nodes_streaming = unicam_num_nodes_streaming(dev); - int ista, sta; - u64 ts; - int i; - - sta = reg_read(cfg, UNICAM_STA); - /* Write value back to clear the interrupts */ - reg_write(cfg, UNICAM_STA, sta); - - ista = reg_read(cfg, UNICAM_ISTA); - /* Write value back to clear the interrupts */ - reg_write(cfg, UNICAM_ISTA, ista); - - unicam_dbg(3, unicam, "ISR: ISTA: 0x%X, STA: 0x%X, sequence %d, lines done %d", - ista, sta, sequence, lines_done); - - if (!(sta && (UNICAM_IS | UNICAM_PI0))) - return IRQ_HANDLED; - - /* - * We must run the frame end handler first. If we have a valid next_frm - * and we get a simultaneout FE + FS interrupt, running the FS handler - * first would null out the next_frm ptr and we would have lost the - * buffer forever. - */ - if (ista & UNICAM_FEI || sta & UNICAM_PI0) { - /* - * Ensure we have swapped buffers already as we can't - * stop the peripheral. If no buffer is available, use a - * dummy buffer to dump out frames until we get a new buffer - * to use. - */ - for (i = 0; i < num_nodes_streaming; i++) { - if (unicam->node[i].cur_frm) - unicam_process_buffer_complete(&unicam->node[i], - sequence); - unicam->node[i].cur_frm = unicam->node[i].next_frm; - } - unicam->sequence++; - } - - if (ista & UNICAM_FSI) { - /* - * Timestamp is to be when the first data byte was captured, - * aka frame start. - */ - ts = ktime_get_ns(); - for (i = 0; i < num_nodes_streaming; i++) { - if (unicam->node[i].cur_frm) - unicam->node[i].cur_frm->vb.vb2_buf.timestamp = - ts; - /* - * Set the next frame output to go to a dummy frame - * if we have not managed to obtain another frame - * from the queue. - */ - unicam_schedule_dummy_buffer(&unicam->node[i]); - } - - unicam_queue_event_sof(unicam); - } - /* - * Cannot swap buffer at frame end, there may be a race condition - * where the HW does not actually swap it if the new frame has - * already started. - */ - if (ista & (UNICAM_FSI | UNICAM_LCI) && !(ista & UNICAM_FEI)) { - for (i = 0; i < num_nodes_streaming; i++) { - spin_lock(&unicam->node[i].dma_queue_lock); - if (!list_empty(&unicam->node[i].dma_queue.active) && - !unicam->node[i].next_frm) - unicam_schedule_next_buffer(&unicam->node[i]); - spin_unlock(&unicam->node[i].dma_queue_lock); - } - } - - if (reg_read(&unicam->cfg, UNICAM_ICTL) & UNICAM_FCM) { - /* Switch out of trigger mode if selected */ - reg_write_field(&unicam->cfg, UNICAM_ICTL, 1, UNICAM_TFC); - reg_write_field(&unicam->cfg, UNICAM_ICTL, 0, UNICAM_FCM); - } - return IRQ_HANDLED; -} - -static int unicam_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - strlcpy(cap->driver, UNICAM_MODULE_NAME, sizeof(cap->driver)); - strlcpy(cap->card, UNICAM_MODULE_NAME, sizeof(cap->card)); - - snprintf(cap->bus_info, sizeof(cap->bus_info), - "platform:%s", dev->v4l2_dev.name); - - cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | - V4L2_CAP_READWRITE | V4L2_CAP_DEVICE_CAPS | - V4L2_CAP_META_CAPTURE; - - if (node->pad_id == IMAGE_PAD) - cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; - else - cap->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING; - - return 0; -} - -static int unicam_enum_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *f) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - struct v4l2_subdev_mbus_code_enum mbus_code; - const struct unicam_fmt *fmt = NULL; - int index = 0; - int ret = 0; - int i; - - if (node->pad_id == METADATA_PAD) - return -EINVAL; - - for (i = 0; !ret && i < MAX_ENUM_MBUS_CODE; i++) { - memset(&mbus_code, 0, sizeof(mbus_code)); - mbus_code.index = i; - mbus_code.pad = IMAGE_PAD; - mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE; - - ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code, - NULL, &mbus_code); - if (ret < 0) { - unicam_dbg(2, dev, - "subdev->enum_mbus_code idx %d returned %d - index invalid\n", - i, ret); - return -EINVAL; - } - - fmt = find_format_by_code(mbus_code.code); - if (fmt) { - if (fmt->fourcc) { - if (index == f->index) { - f->pixelformat = fmt->fourcc; - break; - } - index++; - } - if (fmt->repacked_fourcc) { - if (index == f->index) { - f->pixelformat = fmt->repacked_fourcc; - break; - } - index++; - } - } - } - - return 0; -} - -static int unicam_g_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct v4l2_mbus_framefmt mbus_fmt = {0}; - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - const struct unicam_fmt *fmt = NULL; - int ret; - - if (node->pad_id != IMAGE_PAD) - return -EINVAL; - - /* - * If a flip has occurred in the sensor, the fmt code might have - * changed. So we will need to re-fetch the format from the subdevice. - */ - ret = __subdev_get_format(dev, &mbus_fmt, node->pad_id); - if (ret) - return -EINVAL; - - /* Find the V4L2 format from mbus code. We must match a known format. */ - fmt = find_format_by_code(mbus_fmt.code); - if (!fmt) - return -EINVAL; - - if (node->fmt != fmt) { - /* - * The sensor format has changed so the pixelformat needs to - * be updated. Try and retain the packed/unpacked choice if - * at all possible. - */ - if (node->fmt->repacked_fourcc == - node->v_fmt.fmt.pix.pixelformat) - /* Using the repacked format */ - node->v_fmt.fmt.pix.pixelformat = fmt->repacked_fourcc; - else - /* Using the native format */ - node->v_fmt.fmt.pix.pixelformat = fmt->fourcc; - - node->fmt = fmt; - } - - *f = node->v_fmt; - - return 0; -} - -static -const struct unicam_fmt *get_first_supported_format(struct unicam_device *dev) -{ - struct v4l2_subdev_mbus_code_enum mbus_code; - const struct unicam_fmt *fmt = NULL; - int ret = 0; - int j; - - for (j = 0; ret != -EINVAL && ret != -ENOIOCTLCMD; ++j) { - memset(&mbus_code, 0, sizeof(mbus_code)); - mbus_code.index = j; - mbus_code.pad = IMAGE_PAD; - mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE; - - ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code, NULL, - &mbus_code); - if (ret < 0) { - unicam_dbg(2, dev, - "subdev->enum_mbus_code idx %d returned %d - continue\n", - j, ret); - continue; - } - - unicam_dbg(2, dev, "subdev %s: code: 0x%08x idx: %d\n", - dev->sensor->name, mbus_code.code, j); - - fmt = find_format_by_code(mbus_code.code); - unicam_dbg(2, dev, "fmt 0x%08x returned as %p, V4L2 FOURCC 0x%08x, csi_dt 0x%02x\n", - mbus_code.code, fmt, fmt ? fmt->fourcc : 0, - fmt ? fmt->csi_dt : 0); - if (fmt) - return fmt; - } - - return NULL; -} - -static int unicam_try_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - struct v4l2_subdev_format sd_fmt = { - .which = V4L2_SUBDEV_FORMAT_TRY, - .pad = IMAGE_PAD - }; - struct v4l2_mbus_framefmt *mbus_fmt = &sd_fmt.format; - const struct unicam_fmt *fmt; - int ret; - - if (node->pad_id == METADATA_PAD) - return -EINVAL; - - fmt = find_format_by_pix(dev, f->fmt.pix.pixelformat); - if (!fmt) { - /* Pixel format not supported by unicam. Choose the first - * supported format, and let the sensor choose something else. - */ - unicam_dbg(3, dev, "Fourcc format (0x%08x) not found. Use first format.\n", - f->fmt.pix.pixelformat); - - fmt = &formats[0]; - f->fmt.pix.pixelformat = fmt->fourcc; - } - - v4l2_fill_mbus_format(mbus_fmt, &f->fmt.pix, fmt->code); - /* - * No support for receiving interlaced video, so never - * request it from the sensor subdev. - */ - mbus_fmt->field = V4L2_FIELD_NONE; - - ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_config, - &sd_fmt); - if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) - return ret; - - if (mbus_fmt->field != V4L2_FIELD_NONE) - unicam_info(dev, "Sensor trying to send interlaced video - results may be unpredictable\n"); - - v4l2_fill_pix_format(&f->fmt.pix, &sd_fmt.format); - if (mbus_fmt->code != fmt->code) { - /* Sensor has returned an alternate format */ - fmt = find_format_by_code(mbus_fmt->code); - if (!fmt) { - /* The alternate format is one unicam can't support. - * Find the first format that is supported by both, and - * then set that. - */ - fmt = get_first_supported_format(dev); - mbus_fmt->code = fmt->code; - - ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, - dev->sensor_config, &sd_fmt); - if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) - return ret; - - if (mbus_fmt->field != V4L2_FIELD_NONE) - unicam_info(dev, "Sensor trying to send interlaced video - results may be unpredictable\n"); - - v4l2_fill_pix_format(&f->fmt.pix, &sd_fmt.format); - - if (mbus_fmt->code != fmt->code) { - /* We've set a format that the sensor reports - * as being supported, but it refuses to set it. - * Not much else we can do. - * Assume that the sensor driver may accept the - * format when it is set (rather than tried). - */ - unicam_err(dev, "Sensor won't accept default format, and Unicam can't support sensor default\n"); - } - } - - if (fmt->fourcc) - f->fmt.pix.pixelformat = fmt->fourcc; - else - f->fmt.pix.pixelformat = fmt->repacked_fourcc; - } - - return unicam_calc_format_size_bpl(dev, fmt, f); -} - -static int unicam_s_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - struct vb2_queue *q = &node->buffer_queue; - struct v4l2_mbus_framefmt mbus_fmt = {0}; - const struct unicam_fmt *fmt; - int ret; - - if (vb2_is_busy(q)) - return -EBUSY; - - ret = unicam_try_fmt_vid_cap(file, priv, f); - if (ret < 0) - return ret; - - fmt = find_format_by_pix(dev, f->fmt.pix.pixelformat); - if (!fmt) { - /* Unknown pixel format - adopt a default. - * This shouldn't happen as try_fmt should have resolved any - * issues first. - */ - fmt = get_first_supported_format(dev); - if (!fmt) - /* It shouldn't be possible to get here with no - * supported formats - */ - return -EINVAL; - f->fmt.pix.pixelformat = fmt->fourcc; - return -EINVAL; - } - - v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, fmt->code); - - ret = __subdev_set_format(dev, &mbus_fmt, node->pad_id); - if (ret) { - unicam_dbg(3, dev, "%s __subdev_set_format failed %d\n", - __func__, ret); - return ret; - } - - /* Just double check nothing has gone wrong */ - if (mbus_fmt.code != fmt->code) { - unicam_dbg(3, dev, - "%s subdev changed format on us, this should not happen\n", - __func__); - return -EINVAL; - } - - node->fmt = fmt; - node->v_fmt.fmt.pix.pixelformat = f->fmt.pix.pixelformat; - node->v_fmt.fmt.pix.bytesperline = f->fmt.pix.bytesperline; - unicam_reset_format(node); - - unicam_dbg(3, dev, - "%s %dx%d, mbus_fmt 0x%08X, V4L2 pix 0x%08X.\n", - __func__, node->v_fmt.fmt.pix.width, - node->v_fmt.fmt.pix.height, mbus_fmt.code, - node->v_fmt.fmt.pix.pixelformat); - - *f = node->v_fmt; - - return 0; -} - -static int unicam_enum_fmt_meta_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *f) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - struct v4l2_subdev_mbus_code_enum mbus_code; - const struct unicam_fmt *fmt = NULL; - int ret = 0; - - if (node->pad_id != METADATA_PAD || f->index != 0) - return -EINVAL; - - if (dev->sensor_embedded_data) { - memset(&mbus_code, 0, sizeof(mbus_code)); - mbus_code.index = f->index; - mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE; - mbus_code.pad = METADATA_PAD; - - ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code, NULL, - &mbus_code); - if (ret < 0) { - unicam_dbg(2, dev, - "subdev->enum_mbus_code idx 0 returned %d - index invalid\n", - ret); - return -EINVAL; - } - } else { - mbus_code.code = MEDIA_BUS_FMT_SENSOR_DATA; - } - - fmt = find_format_by_code(mbus_code.code); - if (fmt) - f->pixelformat = fmt->fourcc; - - return 0; -} - -static int unicam_g_fmt_meta_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct unicam_node *node = video_drvdata(file); - - if (node->pad_id != METADATA_PAD) - return -EINVAL; - - *f = node->v_fmt; - - return 0; -} - -static int unicam_try_fmt_meta_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct unicam_node *node = video_drvdata(file); - - if (node->pad_id != METADATA_PAD) - return -EINVAL; - - *f = node->v_fmt; - - return 0; -} - -static int unicam_s_fmt_meta_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - struct v4l2_mbus_framefmt mbus_fmt = { 0 }; - const struct unicam_fmt *fmt; - int ret; - - if (node->pad_id == IMAGE_PAD) - return -EINVAL; - - if (dev->sensor_embedded_data) { - fmt = find_format_by_pix(dev, f->fmt.meta.dataformat); - if (!fmt) { - unicam_err(dev, "unknown format: V4L2 pix 0x%08x\n", - f->fmt.meta.dataformat); - return -EINVAL; - } - mbus_fmt.code = fmt->code; - ret = __subdev_set_format(dev, &mbus_fmt, node->pad_id); - if (ret) { - unicam_dbg(3, dev, "%s __subdev_set_format failed %d\n", - __func__, ret); - return ret; - } - } - - *f = node->v_fmt; - - unicam_dbg(3, dev, "%s size %d, V4L2 pix 0x%08x\n", - __func__, node->v_fmt.fmt.meta.buffersize, - node->v_fmt.fmt.meta.dataformat); - - return 0; -} - -static int unicam_queue_setup(struct vb2_queue *vq, - unsigned int *nbuffers, - unsigned int *nplanes, - unsigned int sizes[], - struct device *alloc_devs[]) -{ - struct unicam_node *node = vb2_get_drv_priv(vq); - struct unicam_device *dev = node->dev; - unsigned int size = node->pad_id == IMAGE_PAD ? - node->v_fmt.fmt.pix.sizeimage : - node->v_fmt.fmt.meta.buffersize; - - if (vq->num_buffers + *nbuffers < 3) - *nbuffers = 3 - vq->num_buffers; - - if (*nplanes) { - if (sizes[0] < size) { - unicam_err(dev, "sizes[0] %i < size %u\n", sizes[0], - size); - return -EINVAL; - } - size = sizes[0]; - } - - *nplanes = 1; - sizes[0] = size; - - return 0; -} - -static int unicam_buffer_prepare(struct vb2_buffer *vb) -{ - struct unicam_node *node = vb2_get_drv_priv(vb->vb2_queue); - struct unicam_device *dev = node->dev; - struct unicam_buffer *buf = container_of(vb, struct unicam_buffer, - vb.vb2_buf); - unsigned long size; - - if (WARN_ON(!node->fmt)) - return -EINVAL; - - size = node->pad_id == IMAGE_PAD ? node->v_fmt.fmt.pix.sizeimage : - node->v_fmt.fmt.meta.buffersize; - if (vb2_plane_size(vb, 0) < size) { - unicam_err(dev, "data will not fit into plane (%lu < %lu)\n", - vb2_plane_size(vb, 0), size); - return -EINVAL; - } - - vb2_set_plane_payload(&buf->vb.vb2_buf, 0, size); - return 0; -} - -static void unicam_buffer_queue(struct vb2_buffer *vb) -{ - struct unicam_node *node = vb2_get_drv_priv(vb->vb2_queue); - struct unicam_buffer *buf = container_of(vb, struct unicam_buffer, - vb.vb2_buf); - struct unicam_dmaqueue *dma_queue = &node->dma_queue; - unsigned long flags = 0; - - spin_lock_irqsave(&node->dma_queue_lock, flags); - list_add_tail(&buf->list, &dma_queue->active); - spin_unlock_irqrestore(&node->dma_queue_lock, flags); -} - -static void unicam_set_packing_config(struct unicam_device *dev) -{ - int pack, unpack; - u32 val; - - if (dev->node[IMAGE_PAD].v_fmt.fmt.pix.pixelformat == - dev->node[IMAGE_PAD].fmt->fourcc) { - unpack = UNICAM_PUM_NONE; - pack = UNICAM_PPM_NONE; - } else { - switch (dev->node[IMAGE_PAD].fmt->depth) { - case 8: - unpack = UNICAM_PUM_UNPACK8; - break; - case 10: - unpack = UNICAM_PUM_UNPACK10; - break; - case 12: - unpack = UNICAM_PUM_UNPACK12; - break; - case 14: - unpack = UNICAM_PUM_UNPACK14; - break; - case 16: - unpack = UNICAM_PUM_UNPACK16; - break; - default: - unpack = UNICAM_PUM_NONE; - break; - } - - /* Repacking is always to 16bpp */ - pack = UNICAM_PPM_PACK16; - } - - val = 0; - set_field(&val, unpack, UNICAM_PUM_MASK); - set_field(&val, pack, UNICAM_PPM_MASK); - reg_write(&dev->cfg, UNICAM_IPIPE, val); -} - -static void unicam_cfg_image_id(struct unicam_device *dev) -{ - struct unicam_cfg *cfg = &dev->cfg; - - if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) { - /* CSI2 mode */ - reg_write(cfg, UNICAM_IDI0, - (dev->virtual_channel << 6) | - dev->node[IMAGE_PAD].fmt->csi_dt); - } else { - /* CCP2 mode */ - reg_write(cfg, UNICAM_IDI0, - 0x80 | dev->node[IMAGE_PAD].fmt->csi_dt); - } -} - -static void unicam_enable_ed(struct unicam_device *dev) -{ - struct unicam_cfg *cfg = &dev->cfg; - u32 val = reg_read(cfg, UNICAM_DCS); - - set_field(&val, 2, UNICAM_EDL_MASK); - /* Do not wrap at the end of the embedded data buffer */ - set_field(&val, 0, UNICAM_DBOB); - - reg_write(cfg, UNICAM_DCS, val); -} - -static void unicam_start_rx(struct unicam_device *dev, dma_addr_t *addr) -{ - struct unicam_cfg *cfg = &dev->cfg; - int line_int_freq = dev->node[IMAGE_PAD].v_fmt.fmt.pix.height >> 2; - unsigned int size, i; - u32 val; - - if (line_int_freq < 128) - line_int_freq = 128; - - /* Enable lane clocks */ - val = 1; - for (i = 0; i < dev->active_data_lanes; i++) - val = val << 2 | 1; - clk_write(cfg, val); - - /* Basic init */ - reg_write(cfg, UNICAM_CTRL, UNICAM_MEM); - - /* Enable analogue control, and leave in reset. */ - val = UNICAM_AR; - set_field(&val, 7, UNICAM_CTATADJ_MASK); - set_field(&val, 7, UNICAM_PTATADJ_MASK); - reg_write(cfg, UNICAM_ANA, val); - usleep_range(1000, 2000); - - /* Come out of reset */ - reg_write_field(cfg, UNICAM_ANA, 0, UNICAM_AR); - - /* Peripheral reset */ - reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_CPR); - reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPR); - - reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPE); - - /* Enable Rx control. */ - val = reg_read(cfg, UNICAM_CTRL); - if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) { - set_field(&val, UNICAM_CPM_CSI2, UNICAM_CPM_MASK); - set_field(&val, UNICAM_DCM_STROBE, UNICAM_DCM_MASK); - } else { - set_field(&val, UNICAM_CPM_CCP2, UNICAM_CPM_MASK); - set_field(&val, dev->bus_flags, UNICAM_DCM_MASK); - } - /* Packet framer timeout */ - set_field(&val, 0xf, UNICAM_PFT_MASK); - set_field(&val, 128, UNICAM_OET_MASK); - reg_write(cfg, UNICAM_CTRL, val); - - reg_write(cfg, UNICAM_IHWIN, 0); - reg_write(cfg, UNICAM_IVWIN, 0); - - /* AXI bus access QoS setup */ - val = reg_read(&dev->cfg, UNICAM_PRI); - set_field(&val, 0, UNICAM_BL_MASK); - set_field(&val, 0, UNICAM_BS_MASK); - set_field(&val, 0xe, UNICAM_PP_MASK); - set_field(&val, 8, UNICAM_NP_MASK); - set_field(&val, 2, UNICAM_PT_MASK); - set_field(&val, 1, UNICAM_PE); - reg_write(cfg, UNICAM_PRI, val); - - reg_write_field(cfg, UNICAM_ANA, 0, UNICAM_DDL); - - /* Always start in trigger frame capture mode (UNICAM_FCM set) */ - val = UNICAM_FSIE | UNICAM_FEIE | UNICAM_FCM | UNICAM_IBOB; - set_field(&val, line_int_freq, UNICAM_LCIE_MASK); - reg_write(cfg, UNICAM_ICTL, val); - reg_write(cfg, UNICAM_STA, UNICAM_STA_MASK_ALL); - reg_write(cfg, UNICAM_ISTA, UNICAM_ISTA_MASK_ALL); - - /* tclk_term_en */ - reg_write_field(cfg, UNICAM_CLT, 2, UNICAM_CLT1_MASK); - /* tclk_settle */ - reg_write_field(cfg, UNICAM_CLT, 6, UNICAM_CLT2_MASK); - /* td_term_en */ - reg_write_field(cfg, UNICAM_DLT, 2, UNICAM_DLT1_MASK); - /* ths_settle */ - reg_write_field(cfg, UNICAM_DLT, 6, UNICAM_DLT2_MASK); - /* trx_enable */ - reg_write_field(cfg, UNICAM_DLT, 0, UNICAM_DLT3_MASK); - - reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_SOE); - - /* Packet compare setup - required to avoid missing frame ends */ - val = 0; - set_field(&val, 1, UNICAM_PCE); - set_field(&val, 1, UNICAM_GI); - set_field(&val, 1, UNICAM_CPH); - set_field(&val, 0, UNICAM_PCVC_MASK); - set_field(&val, 1, UNICAM_PCDT_MASK); - reg_write(cfg, UNICAM_CMP0, val); - - /* Enable clock lane and set up terminations */ - val = 0; - if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) { - /* CSI2 */ - set_field(&val, 1, UNICAM_CLE); - set_field(&val, 1, UNICAM_CLLPE); - if (dev->bus_flags & V4L2_MBUS_CSI2_CONTINUOUS_CLOCK) { - set_field(&val, 1, UNICAM_CLTRE); - set_field(&val, 1, UNICAM_CLHSE); - } - } else { - /* CCP2 */ - set_field(&val, 1, UNICAM_CLE); - set_field(&val, 1, UNICAM_CLHSE); - set_field(&val, 1, UNICAM_CLTRE); - } - reg_write(cfg, UNICAM_CLK, val); - - /* - * Enable required data lanes with appropriate terminations. - * The same value needs to be written to UNICAM_DATn registers for - * the active lanes, and 0 for inactive ones. - */ - val = 0; - if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) { - /* CSI2 */ - set_field(&val, 1, UNICAM_DLE); - set_field(&val, 1, UNICAM_DLLPE); - if (dev->bus_flags & V4L2_MBUS_CSI2_CONTINUOUS_CLOCK) { - set_field(&val, 1, UNICAM_DLTRE); - set_field(&val, 1, UNICAM_DLHSE); - } - } else { - /* CCP2 */ - set_field(&val, 1, UNICAM_DLE); - set_field(&val, 1, UNICAM_DLHSE); - set_field(&val, 1, UNICAM_DLTRE); - } - reg_write(cfg, UNICAM_DAT0, val); - - if (dev->active_data_lanes == 1) - val = 0; - reg_write(cfg, UNICAM_DAT1, val); - - if (dev->max_data_lanes > 2) { - /* - * Registers UNICAM_DAT2 and UNICAM_DAT3 only valid if the - * instance supports more than 2 data lanes. - */ - if (dev->active_data_lanes == 2) - val = 0; - reg_write(cfg, UNICAM_DAT2, val); - - if (dev->active_data_lanes == 3) - val = 0; - reg_write(cfg, UNICAM_DAT3, val); - } - - reg_write(&dev->cfg, UNICAM_IBLS, - dev->node[IMAGE_PAD].v_fmt.fmt.pix.bytesperline); - size = dev->node[IMAGE_PAD].v_fmt.fmt.pix.sizeimage; - unicam_wr_dma_addr(&dev->cfg, addr[IMAGE_PAD], size, IMAGE_PAD); - unicam_set_packing_config(dev); - unicam_cfg_image_id(dev); - - val = reg_read(cfg, UNICAM_MISC); - set_field(&val, 1, UNICAM_FL0); - set_field(&val, 1, UNICAM_FL1); - reg_write(cfg, UNICAM_MISC, val); - - if (dev->node[METADATA_PAD].streaming && dev->sensor_embedded_data) { - size = dev->node[METADATA_PAD].v_fmt.fmt.meta.buffersize; - unicam_enable_ed(dev); - unicam_wr_dma_addr(&dev->cfg, addr[METADATA_PAD], size, - METADATA_PAD); - } - - /* Enable peripheral */ - reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_CPE); - - /* Load image pointers */ - reg_write_field(cfg, UNICAM_ICTL, 1, UNICAM_LIP_MASK); - - /* Load embedded data buffer pointers if needed */ - if (dev->node[METADATA_PAD].streaming && dev->sensor_embedded_data) - reg_write_field(cfg, UNICAM_DCS, 1, UNICAM_LDP); - - /* - * Enable trigger only for the first frame to - * sync correctly to the FS from the source. - */ - reg_write_field(cfg, UNICAM_ICTL, 1, UNICAM_TFC); -} - -static void unicam_disable(struct unicam_device *dev) -{ - struct unicam_cfg *cfg = &dev->cfg; - - /* Analogue lane control disable */ - reg_write_field(cfg, UNICAM_ANA, 1, UNICAM_DDL); - - /* Stop the output engine */ - reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_SOE); - - /* Disable the data lanes. */ - reg_write(cfg, UNICAM_DAT0, 0); - reg_write(cfg, UNICAM_DAT1, 0); - - if (dev->max_data_lanes > 2) { - reg_write(cfg, UNICAM_DAT2, 0); - reg_write(cfg, UNICAM_DAT3, 0); - } - - /* Peripheral reset */ - reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_CPR); - usleep_range(50, 100); - reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPR); - - /* Disable peripheral */ - reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPE); - - /* Clear ED setup */ - reg_write(cfg, UNICAM_DCS, 0); - - /* Disable all lane clocks */ - clk_write(cfg, 0); -} - -static int unicam_start_streaming(struct vb2_queue *vq, unsigned int count) -{ - struct unicam_node *node = vb2_get_drv_priv(vq); - struct unicam_device *dev = node->dev; - struct unicam_buffer *buf; - dma_addr_t buffer_addr[MAX_NODES] = { 0 }; - int num_nodes_streaming; - unsigned long flags; - int ret, i; - - node->streaming = 1; - if (!unicam_all_nodes_streaming(dev)) { - unicam_dbg(3, dev, "Not all nodes are streaming yet."); - return 0; - } - - dev->sequence = 0; - ret = unicam_runtime_get(dev); - if (ret < 0) { - unicam_dbg(3, dev, "unicam_runtime_get failed\n"); - return ret; - } - - dev->active_data_lanes = dev->max_data_lanes; - if (dev->bus_type == V4L2_MBUS_CSI2_DPHY && - v4l2_subdev_has_op(dev->sensor, video, g_mbus_config)) { - struct v4l2_mbus_config mbus_config; - - ret = v4l2_subdev_call(dev->sensor, video, g_mbus_config, - &mbus_config); - if (ret < 0) { - unicam_dbg(3, dev, "g_mbus_config failed\n"); - goto err_pm_put; - } - - dev->active_data_lanes = - (mbus_config.flags & V4L2_MBUS_CSI2_LANE_MASK) >> - __ffs(V4L2_MBUS_CSI2_LANE_MASK); - if (!dev->active_data_lanes) - dev->active_data_lanes = dev->max_data_lanes; - } - if (dev->active_data_lanes > dev->max_data_lanes) { - unicam_err(dev, "Device has requested %u data lanes, which is >%u configured in DT\n", - dev->active_data_lanes, dev->max_data_lanes); - ret = -EINVAL; - goto err_pm_put; - } - - unicam_dbg(1, dev, "Running with %u data lanes\n", - dev->active_data_lanes); - - ret = clk_set_rate(dev->clock, 100 * 1000 * 1000); - if (ret) { - unicam_err(dev, "failed to set up clock\n"); - goto err_pm_put; - } - - ret = clk_prepare_enable(dev->clock); - if (ret) { - unicam_err(dev, "Failed to enable CSI clock: %d\n", ret); - goto err_pm_put; - } - - num_nodes_streaming = unicam_num_nodes_streaming(dev); - for (i = 0; i < num_nodes_streaming; i++) { - spin_lock_irqsave(&dev->node[i].dma_queue_lock, flags); - buf = list_entry(dev->node[i].dma_queue.active.next, - struct unicam_buffer, list); - dev->node[i].cur_frm = buf; - dev->node[i].next_frm = buf; - list_del(&buf->list); - spin_unlock_irqrestore(&dev->node[i].dma_queue_lock, flags); - buffer_addr[i] = - vb2_dma_contig_plane_dma_addr(&dev->node[i].cur_frm->vb.vb2_buf, - 0); - } - - unicam_start_rx(dev, buffer_addr); - - ret = v4l2_subdev_call(dev->sensor, video, s_stream, 1); - if (ret < 0) { - unicam_err(dev, "stream on failed in subdev\n"); - goto err_disable_unicam; - } - - return 0; - -err_disable_unicam: - node->streaming = 0; - unicam_disable(dev); - clk_disable_unprepare(dev->clock); -err_pm_put: - unicam_runtime_put(dev); - - return ret; -} - -static void unicam_stop_streaming(struct vb2_queue *vq) -{ - struct unicam_node *node = vb2_get_drv_priv(vq); - struct unicam_device *dev = node->dev; - struct unicam_dmaqueue *dma_q = &node->dma_queue; - struct unicam_buffer *buf, *tmp; - unsigned long flags; - - node->streaming = 0; - - if (node->pad_id == IMAGE_PAD) { - /* Stop streaming the sensor and disable the peripheral. - * We cannot continue streaming embedded data with the - * image pad disabled. - */ - if (v4l2_subdev_call(dev->sensor, video, s_stream, 0) < 0) - unicam_err(dev, "stream off failed in subdev\n"); - - unicam_disable(dev); - clk_disable_unprepare(dev->clock); - unicam_runtime_put(dev); - - } else if (node->pad_id == METADATA_PAD) { - /* Allow the hardware to spin in the dummy buffer. - * This is only really needed if the embedded data pad is - * disabled before the image pad. The 0x3 in the top two bits - * signifies uncached accesses through the Videocore memory - * controller. - */ - unicam_wr_dma_addr(&dev->cfg, node->dummy_buf_dma_addr, - DUMMY_BUF_SIZE, METADATA_PAD); - } - - /* Clear all queued buffers for the node */ - spin_lock_irqsave(&node->dma_queue_lock, flags); - list_for_each_entry_safe(buf, tmp, &dma_q->active, list) { - list_del(&buf->list); - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); - } - - if (node->cur_frm) - vb2_buffer_done(&node->cur_frm->vb.vb2_buf, - VB2_BUF_STATE_ERROR); - if (node->next_frm && node->cur_frm != node->next_frm) - vb2_buffer_done(&node->next_frm->vb.vb2_buf, - VB2_BUF_STATE_ERROR); - - node->cur_frm = NULL; - node->next_frm = NULL; - spin_unlock_irqrestore(&node->dma_queue_lock, flags); -} - -static int unicam_enum_input(struct file *file, void *priv, - struct v4l2_input *inp) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - if (inp->index != 0) - return -EINVAL; - - inp->type = V4L2_INPUT_TYPE_CAMERA; - if (v4l2_subdev_has_op(dev->sensor, video, s_dv_timings)) { - inp->capabilities = V4L2_IN_CAP_DV_TIMINGS; - inp->std = 0; - } else if (v4l2_subdev_has_op(dev->sensor, video, s_std)) { - inp->capabilities = V4L2_IN_CAP_STD; - if (v4l2_subdev_call(dev->sensor, video, g_tvnorms, &inp->std) - < 0) - inp->std = V4L2_STD_ALL; - } else { - inp->capabilities = 0; - inp->std = 0; - } - sprintf(inp->name, "Camera 0"); - return 0; -} - -static int unicam_g_input(struct file *file, void *priv, unsigned int *i) -{ - *i = 0; - - return 0; -} - -static int unicam_s_input(struct file *file, void *priv, unsigned int i) -{ - /* - * FIXME: Ideally we would like to be able to query the source - * subdevice for information over the input connectors it supports, - * and map that through in to a call to video_ops->s_routing. - * There is no infrastructure support for defining that within - * devicetree at present. Until that is implemented we can't - * map a user physical connector number to s_routing input number. - */ - if (i > 0) - return -EINVAL; - - return 0; -} - -static int unicam_querystd(struct file *file, void *priv, - v4l2_std_id *std) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - return v4l2_subdev_call(dev->sensor, video, querystd, std); -} - -static int unicam_g_std(struct file *file, void *priv, v4l2_std_id *std) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - return v4l2_subdev_call(dev->sensor, video, g_std, std); -} - -static int unicam_s_std(struct file *file, void *priv, v4l2_std_id std) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - int ret; - v4l2_std_id current_std; - - ret = v4l2_subdev_call(dev->sensor, video, g_std, ¤t_std); - if (ret) - return ret; - - if (std == current_std) - return 0; - - if (vb2_is_busy(&node->buffer_queue)) - return -EBUSY; - - ret = v4l2_subdev_call(dev->sensor, video, s_std, std); - - /* Force recomputation of bytesperline */ - node->v_fmt.fmt.pix.bytesperline = 0; - - unicam_reset_format(node); - - return ret; -} - -static int unicam_s_edid(struct file *file, void *priv, struct v4l2_edid *edid) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - return v4l2_subdev_call(dev->sensor, pad, set_edid, edid); -} - -static int unicam_g_edid(struct file *file, void *priv, struct v4l2_edid *edid) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - return v4l2_subdev_call(dev->sensor, pad, get_edid, edid); -} - -static int unicam_s_selection(struct file *file, void *priv, - struct v4l2_selection *sel) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - struct v4l2_subdev_selection sdsel = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - .target = sel->target, - .flags = sel->flags, - .r = sel->r, - }; - - return v4l2_subdev_call(dev->sensor, pad, set_selection, NULL, &sdsel); -} - -static int unicam_g_selection(struct file *file, void *priv, - struct v4l2_selection *sel) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - struct v4l2_subdev_selection sdsel = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - .target = sel->target, - }; - int ret; - - ret = v4l2_subdev_call(dev->sensor, pad, get_selection, NULL, &sdsel); - if (!ret) - sel->r = sdsel.r; - - return ret; -} - -static int unicam_enum_framesizes(struct file *file, void *priv, - struct v4l2_frmsizeenum *fsize) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - const struct unicam_fmt *fmt; - struct v4l2_subdev_frame_size_enum fse; - int ret; - - if (node->pad_id == IMAGE_PAD) { - /* check for valid format */ - fmt = find_format_by_pix(dev, fsize->pixel_format); - if (!fmt) { - unicam_dbg(3, dev, "Invalid pixel code: %x\n", - fsize->pixel_format); - return -EINVAL; - } - fse.code = fmt->code; - } else { - /* This pad is for embedded data, so just set the format */ - fse.code = MEDIA_BUS_FMT_SENSOR_DATA; - } - - fse.which = V4L2_SUBDEV_FORMAT_ACTIVE; - fse.index = fsize->index; - fse.pad = node->pad_id; - - ret = v4l2_subdev_call(dev->sensor, pad, enum_frame_size, NULL, &fse); - if (ret) - return ret; - - unicam_dbg(1, dev, "%s: index: %d code: %x W:[%d,%d] H:[%d,%d]\n", - __func__, fse.index, fse.code, fse.min_width, fse.max_width, - fse.min_height, fse.max_height); - - fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; - fsize->discrete.width = fse.max_width; - fsize->discrete.height = fse.max_height; - - return 0; -} - -static int unicam_enum_frameintervals(struct file *file, void *priv, - struct v4l2_frmivalenum *fival) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - const struct unicam_fmt *fmt; - struct v4l2_subdev_frame_interval_enum fie = { - .index = fival->index, - .width = fival->width, - .height = fival->height, - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - }; - int ret; - - fmt = find_format_by_pix(dev, fival->pixel_format); - if (!fmt) - return -EINVAL; - - fie.code = fmt->code; - ret = v4l2_subdev_call(dev->sensor, pad, enum_frame_interval, - NULL, &fie); - if (ret) - return ret; - - fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; - fival->discrete = fie.interval; - - return 0; -} - -static int unicam_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - return v4l2_g_parm_cap(video_devdata(file), dev->sensor, a); -} - -static int unicam_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - return v4l2_s_parm_cap(video_devdata(file), dev->sensor, a); -} - -static int unicam_g_dv_timings(struct file *file, void *priv, - struct v4l2_dv_timings *timings) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - return v4l2_subdev_call(dev->sensor, video, g_dv_timings, timings); -} - -static int unicam_s_dv_timings(struct file *file, void *priv, - struct v4l2_dv_timings *timings) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - struct v4l2_dv_timings current_timings; - int ret; - - ret = v4l2_subdev_call(dev->sensor, video, g_dv_timings, - ¤t_timings); - - if (v4l2_match_dv_timings(timings, ¤t_timings, 0, false)) - return 0; - - if (vb2_is_busy(&node->buffer_queue)) - return -EBUSY; - - ret = v4l2_subdev_call(dev->sensor, video, s_dv_timings, timings); - - /* Force recomputation of bytesperline */ - node->v_fmt.fmt.pix.bytesperline = 0; - - unicam_reset_format(node); - - return ret; -} - -static int unicam_query_dv_timings(struct file *file, void *priv, - struct v4l2_dv_timings *timings) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - return v4l2_subdev_call(dev->sensor, video, query_dv_timings, timings); -} - -static int unicam_enum_dv_timings(struct file *file, void *priv, - struct v4l2_enum_dv_timings *timings) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - return v4l2_subdev_call(dev->sensor, pad, enum_dv_timings, timings); -} - -static int unicam_dv_timings_cap(struct file *file, void *priv, - struct v4l2_dv_timings_cap *cap) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - - return v4l2_subdev_call(dev->sensor, pad, dv_timings_cap, cap); -} - -static int unicam_subscribe_event(struct v4l2_fh *fh, - const struct v4l2_event_subscription *sub) -{ - switch (sub->type) { - case V4L2_EVENT_FRAME_SYNC: - return v4l2_event_subscribe(fh, sub, 2, NULL); - case V4L2_EVENT_SOURCE_CHANGE: - return v4l2_event_subscribe(fh, sub, 4, NULL); - } - - return v4l2_ctrl_subscribe_event(fh, sub); -} - -static int unicam_log_status(struct file *file, void *fh) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - struct unicam_cfg *cfg = &dev->cfg; - u32 reg; - - /* status for sub devices */ - v4l2_device_call_all(&dev->v4l2_dev, 0, core, log_status); - - unicam_info(dev, "-----Receiver status-----\n"); - unicam_info(dev, "V4L2 width/height: %ux%u\n", - node->v_fmt.fmt.pix.width, node->v_fmt.fmt.pix.height); - unicam_info(dev, "Mediabus format: %08x\n", node->fmt->code); - unicam_info(dev, "V4L2 format: %08x\n", - node->v_fmt.fmt.pix.pixelformat); - reg = reg_read(&dev->cfg, UNICAM_IPIPE); - unicam_info(dev, "Unpacking/packing: %u / %u\n", - get_field(reg, UNICAM_PUM_MASK), - get_field(reg, UNICAM_PPM_MASK)); - unicam_info(dev, "----Live data----\n"); - unicam_info(dev, "Programmed stride: %4u\n", - reg_read(cfg, UNICAM_IBLS)); - unicam_info(dev, "Detected resolution: %ux%u\n", - reg_read(cfg, UNICAM_IHSTA), - reg_read(cfg, UNICAM_IVSTA)); - unicam_info(dev, "Write pointer: %08x\n", - reg_read(cfg, UNICAM_IBWP)); - - return 0; -} - -static void unicam_notify(struct v4l2_subdev *sd, - unsigned int notification, void *arg) -{ - struct unicam_device *dev = - container_of(sd->v4l2_dev, struct unicam_device, v4l2_dev); - - switch (notification) { - case V4L2_DEVICE_NOTIFY_EVENT: - v4l2_event_queue(&dev->node[IMAGE_PAD].video_dev, arg); - break; - default: - break; - } -} - -static const struct vb2_ops unicam_video_qops = { - .wait_prepare = vb2_ops_wait_prepare, - .wait_finish = vb2_ops_wait_finish, - .queue_setup = unicam_queue_setup, - .buf_prepare = unicam_buffer_prepare, - .buf_queue = unicam_buffer_queue, - .start_streaming = unicam_start_streaming, - .stop_streaming = unicam_stop_streaming, -}; - -/* - * unicam_open : This function is based on the v4l2_fh_open helper function. - * It has been augmented to handle sensor subdevice power management, - */ -static int unicam_open(struct file *file) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - int ret; - - mutex_lock(&node->lock); - - ret = v4l2_fh_open(file); - if (ret) { - unicam_err(dev, "v4l2_fh_open failed\n"); - goto unlock; - } - - node->open++; - - if (!v4l2_fh_is_singular_file(file)) - goto unlock; - - ret = v4l2_subdev_call(dev->sensor, core, s_power, 1); - if (ret < 0 && ret != -ENOIOCTLCMD) { - v4l2_fh_release(file); - node->open--; - goto unlock; - } - - ret = 0; - -unlock: - mutex_unlock(&node->lock); - return ret; -} - -static int unicam_release(struct file *file) -{ - struct unicam_node *node = video_drvdata(file); - struct unicam_device *dev = node->dev; - struct v4l2_subdev *sd = dev->sensor; - bool fh_singular; - int ret; - - mutex_lock(&node->lock); - - fh_singular = v4l2_fh_is_singular_file(file); - - ret = _vb2_fop_release(file, NULL); - - if (fh_singular) - v4l2_subdev_call(sd, core, s_power, 0); - - node->open--; - mutex_unlock(&node->lock); - - return ret; -} - -/* unicam capture driver file operations */ -static const struct v4l2_file_operations unicam_fops = { - .owner = THIS_MODULE, - .open = unicam_open, - .release = unicam_release, - .read = vb2_fop_read, - .poll = vb2_fop_poll, - .unlocked_ioctl = video_ioctl2, - .mmap = vb2_fop_mmap, -}; - -/* unicam capture ioctl operations */ -static const struct v4l2_ioctl_ops unicam_ioctl_ops = { - .vidioc_querycap = unicam_querycap, - .vidioc_enum_fmt_vid_cap = unicam_enum_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = unicam_g_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = unicam_s_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = unicam_try_fmt_vid_cap, - - .vidioc_enum_fmt_meta_cap = unicam_enum_fmt_meta_cap, - .vidioc_g_fmt_meta_cap = unicam_g_fmt_meta_cap, - .vidioc_s_fmt_meta_cap = unicam_s_fmt_meta_cap, - .vidioc_try_fmt_meta_cap = unicam_try_fmt_meta_cap, - - .vidioc_enum_input = unicam_enum_input, - .vidioc_g_input = unicam_g_input, - .vidioc_s_input = unicam_s_input, - - .vidioc_querystd = unicam_querystd, - .vidioc_s_std = unicam_s_std, - .vidioc_g_std = unicam_g_std, - - .vidioc_g_edid = unicam_g_edid, - .vidioc_s_edid = unicam_s_edid, - - .vidioc_enum_framesizes = unicam_enum_framesizes, - .vidioc_enum_frameintervals = unicam_enum_frameintervals, - - .vidioc_g_selection = unicam_g_selection, - .vidioc_s_selection = unicam_s_selection, - - .vidioc_g_parm = unicam_g_parm, - .vidioc_s_parm = unicam_s_parm, - - .vidioc_s_dv_timings = unicam_s_dv_timings, - .vidioc_g_dv_timings = unicam_g_dv_timings, - .vidioc_query_dv_timings = unicam_query_dv_timings, - .vidioc_enum_dv_timings = unicam_enum_dv_timings, - .vidioc_dv_timings_cap = unicam_dv_timings_cap, - - .vidioc_reqbufs = vb2_ioctl_reqbufs, - .vidioc_create_bufs = vb2_ioctl_create_bufs, - .vidioc_prepare_buf = vb2_ioctl_prepare_buf, - .vidioc_querybuf = vb2_ioctl_querybuf, - .vidioc_qbuf = vb2_ioctl_qbuf, - .vidioc_dqbuf = vb2_ioctl_dqbuf, - .vidioc_expbuf = vb2_ioctl_expbuf, - .vidioc_streamon = vb2_ioctl_streamon, - .vidioc_streamoff = vb2_ioctl_streamoff, - - .vidioc_log_status = unicam_log_status, - .vidioc_subscribe_event = unicam_subscribe_event, - .vidioc_unsubscribe_event = v4l2_event_unsubscribe, -}; - -static int -unicam_async_bound(struct v4l2_async_notifier *notifier, - struct v4l2_subdev *subdev, - struct v4l2_async_subdev *asd) -{ - struct unicam_device *unicam = container_of(notifier->v4l2_dev, - struct unicam_device, v4l2_dev); - - if (unicam->sensor) { - unicam_info(unicam, "Rejecting subdev %s (Already set!!)", - subdev->name); - return 0; - } - - unicam->sensor = subdev; - unicam_dbg(1, unicam, "Using sensor %s for capture\n", subdev->name); - - return 0; -} - -static int register_node(struct unicam_device *unicam, struct unicam_node *node, - enum v4l2_buf_type type, int pad_id) -{ - struct video_device *vdev; - struct vb2_queue *q; - struct v4l2_mbus_framefmt mbus_fmt = {0}; - const struct unicam_fmt *fmt; - int ret; - - if (unicam->sensor_embedded_data || pad_id != METADATA_PAD) { - ret = __subdev_get_format(unicam, &mbus_fmt, pad_id); - if (ret) { - unicam_err(unicam, "Failed to get_format - ret %d\n", - ret); - return ret; - } - - fmt = find_format_by_code(mbus_fmt.code); - if (!fmt) { - /* Find the first format that the sensor and unicam both - * support - */ - fmt = get_first_supported_format(unicam); - - if (!fmt) - /* No compatible formats */ - return -EINVAL; - - mbus_fmt.code = fmt->code; - ret = __subdev_set_format(unicam, &mbus_fmt, pad_id); - if (ret) - return -EINVAL; - } - if (mbus_fmt.field != V4L2_FIELD_NONE) { - /* Interlaced not supported - disable it now. */ - mbus_fmt.field = V4L2_FIELD_NONE; - ret = __subdev_set_format(unicam, &mbus_fmt, pad_id); - if (ret) - return -EINVAL; - } - } else { - /* Fix this node format as embedded data. */ - fmt = find_format_by_code(MEDIA_BUS_FMT_SENSOR_DATA); - } - - node->dev = unicam; - node->pad_id = pad_id; - node->fmt = fmt; - if (fmt->fourcc) { - if (fmt->fourcc != V4L2_META_FMT_SENSOR_DATA) - node->v_fmt.fmt.pix.pixelformat = fmt->fourcc; - else - node->v_fmt.fmt.meta.dataformat = fmt->fourcc; - } else { - node->v_fmt.fmt.pix.pixelformat = fmt->repacked_fourcc; - } - - /* Read current subdev format */ - unicam_reset_format(node); - - if (v4l2_subdev_has_op(unicam->sensor, video, s_std)) { - v4l2_std_id tvnorms; - - if (WARN_ON(!v4l2_subdev_has_op(unicam->sensor, video, - g_tvnorms))) - /* - * Subdevice should not advertise s_std but not - * g_tvnorms - */ - return -EINVAL; - - ret = v4l2_subdev_call(unicam->sensor, video, - g_tvnorms, &tvnorms); - if (WARN_ON(ret)) - return -EINVAL; - node->video_dev.tvnorms |= tvnorms; - } - - spin_lock_init(&node->dma_queue_lock); - mutex_init(&node->lock); - - vdev = &node->video_dev; - if (pad_id == IMAGE_PAD) { - /* Add controls from the subdevice */ - ret = v4l2_ctrl_add_handler(&node->ctrl_handler, - unicam->sensor->ctrl_handler, NULL, - true); - if (ret < 0) - return ret; - - /* - * If the sensor subdevice has any controls, associate the node - * with the ctrl handler to allow access from userland. - */ - if (!list_empty(&node->ctrl_handler.ctrls)) - vdev->ctrl_handler = &node->ctrl_handler; - } - - q = &node->buffer_queue; - q->type = type; - q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ; - q->drv_priv = node; - q->ops = &unicam_video_qops; - q->mem_ops = &vb2_dma_contig_memops; - q->buf_struct_size = sizeof(struct unicam_buffer); - q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->lock = &node->lock; - q->min_buffers_needed = 1; - q->dev = &unicam->pdev->dev; - - ret = vb2_queue_init(q); - if (ret) { - unicam_err(unicam, "vb2_queue_init() failed\n"); - return ret; - } - - INIT_LIST_HEAD(&node->dma_queue.active); - - vdev->release = video_device_release_empty; - vdev->fops = &unicam_fops; - vdev->ioctl_ops = &unicam_ioctl_ops; - vdev->v4l2_dev = &unicam->v4l2_dev; - vdev->vfl_dir = VFL_DIR_RX; - vdev->queue = q; - vdev->lock = &node->lock; - vdev->device_caps = (pad_id == IMAGE_PAD) ? - (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING) : - (V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING); - - /* Define the device names */ - snprintf(vdev->name, sizeof(vdev->name), "%s-%s", UNICAM_MODULE_NAME, - node->pad_id == IMAGE_PAD ? "image" : "embedded"); - - video_set_drvdata(vdev, node); - vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT; - - node->dummy_buf_cpu_addr = dma_alloc_coherent(&unicam->pdev->dev, - DUMMY_BUF_SIZE, - &node->dummy_buf_dma_addr, - GFP_ATOMIC); - if (!node->dummy_buf_cpu_addr) { - unicam_err(unicam, "Unable to allocate dummy buffer.\n"); - return -ENOMEM; - } - - if (node->pad_id == METADATA_PAD) { - v4l2_disable_ioctl(vdev, VIDIOC_DQEVENT); - v4l2_disable_ioctl(vdev, VIDIOC_SUBSCRIBE_EVENT); - v4l2_disable_ioctl(vdev, VIDIOC_UNSUBSCRIBE_EVENT); - } - if (node->pad_id == METADATA_PAD || - !v4l2_subdev_has_op(unicam->sensor, video, s_std)) { - v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_STD); - v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_STD); - v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUMSTD); - } - if (node->pad_id == METADATA_PAD || - !v4l2_subdev_has_op(unicam->sensor, video, querystd)) - v4l2_disable_ioctl(&node->video_dev, VIDIOC_QUERYSTD); - if (node->pad_id == METADATA_PAD || - !v4l2_subdev_has_op(unicam->sensor, video, s_dv_timings)) { - v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_EDID); - v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_EDID); - v4l2_disable_ioctl(&node->video_dev, VIDIOC_DV_TIMINGS_CAP); - v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_DV_TIMINGS); - v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_DV_TIMINGS); - v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUM_DV_TIMINGS); - v4l2_disable_ioctl(&node->video_dev, VIDIOC_QUERY_DV_TIMINGS); - } - if (node->pad_id == METADATA_PAD || - !v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_interval)) - v4l2_disable_ioctl(&node->video_dev, - VIDIOC_ENUM_FRAMEINTERVALS); - if (node->pad_id == METADATA_PAD || - !v4l2_subdev_has_op(unicam->sensor, video, g_frame_interval)) - v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_PARM); - if (node->pad_id == METADATA_PAD || - !v4l2_subdev_has_op(unicam->sensor, video, s_frame_interval)) - v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_PARM); - - if (node->pad_id == METADATA_PAD || - !v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_size)) - v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUM_FRAMESIZES); - - if (node->pad_id == METADATA_PAD || - !v4l2_subdev_has_op(unicam->sensor, pad, set_selection)) - v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_SELECTION); - - if (node->pad_id == METADATA_PAD || - !v4l2_subdev_has_op(unicam->sensor, pad, get_selection)) - v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_SELECTION); - - ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); - if (ret) { - unicam_err(unicam, "Unable to register video device.\n"); - return ret; - } - node->registered = 1; - - if (unicam->sensor_embedded_data) { - ret = media_create_pad_link(&unicam->sensor->entity, pad_id, - &node->video_dev.entity, 0, - MEDIA_LNK_FL_ENABLED | - MEDIA_LNK_FL_IMMUTABLE); - if (ret) - unicam_err(unicam, "Unable to create pad links.\n"); - } - - return ret; -} - -static void unregister_nodes(struct unicam_device *unicam) -{ - struct unicam_node *node; - int i; - - for (i = 0; i < MAX_NODES; i++) { - node = &unicam->node[i]; - if (node->dummy_buf_cpu_addr) { - dma_free_coherent(&unicam->pdev->dev, DUMMY_BUF_SIZE, - node->dummy_buf_cpu_addr, - node->dummy_buf_dma_addr); - } - if (node->registered) { - video_unregister_device(&node->video_dev); - node->registered = 0; - } - } -} - -static int unicam_probe_complete(struct unicam_device *unicam) -{ - int ret; - - v4l2_set_subdev_hostdata(unicam->sensor, unicam); - - unicam->v4l2_dev.notify = unicam_notify; - - unicam->sensor_config = v4l2_subdev_alloc_pad_config(unicam->sensor); - if (!unicam->sensor_config) - return -ENOMEM; - - unicam->sensor_embedded_data = (unicam->sensor->entity.num_pads >= 2); - - ret = register_node(unicam, &unicam->node[IMAGE_PAD], - V4L2_BUF_TYPE_VIDEO_CAPTURE, IMAGE_PAD); - if (ret) { - unicam_err(unicam, "Unable to register subdev node 0.\n"); - goto unregister; - } - - ret = register_node(unicam, &unicam->node[METADATA_PAD], - V4L2_BUF_TYPE_META_CAPTURE, METADATA_PAD); - if (ret) { - unicam_err(unicam, "Unable to register subdev node 1.\n"); - goto unregister; - } - - ret = v4l2_device_register_ro_subdev_nodes(&unicam->v4l2_dev); - if (ret) { - unicam_err(unicam, "Unable to register subdev nodes.\n"); - goto unregister; - } - - return 0; - -unregister: - unregister_nodes(unicam); - - return ret; -} - -static int unicam_async_complete(struct v4l2_async_notifier *notifier) -{ - struct unicam_device *unicam = container_of(notifier->v4l2_dev, - struct unicam_device, v4l2_dev); - - return unicam_probe_complete(unicam); -} - -static const struct v4l2_async_notifier_operations unicam_async_ops = { - .bound = unicam_async_bound, - .complete = unicam_async_complete, -}; - -static int of_unicam_connect_subdevs(struct unicam_device *dev) -{ - struct platform_device *pdev = dev->pdev; - struct device_node *parent, *ep_node = NULL, *remote_ep = NULL, - *sensor_node = NULL; - struct v4l2_fwnode_endpoint *ep; - struct v4l2_async_subdev *asd; - unsigned int peripheral_data_lanes; - int ret = -EINVAL; - unsigned int lane; - - parent = pdev->dev.of_node; - - asd = &dev->asd; - ep = &dev->endpoint; - - ep_node = of_graph_get_next_endpoint(parent, NULL); - if (!ep_node) { - unicam_dbg(3, dev, "can't get next endpoint\n"); - goto cleanup_exit; - } - - unicam_dbg(3, dev, "ep_node is %s\n", ep_node->name); - - v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep_node), ep); - - for (lane = 0; lane < ep->bus.mipi_csi2.num_data_lanes; lane++) { - if (ep->bus.mipi_csi2.data_lanes[lane] != lane + 1) { - unicam_err(dev, "Local endpoint - data lane reordering not supported\n"); - goto cleanup_exit; - } - } - - peripheral_data_lanes = ep->bus.mipi_csi2.num_data_lanes; - - sensor_node = of_graph_get_remote_port_parent(ep_node); - if (!sensor_node) { - unicam_dbg(3, dev, "can't get remote parent\n"); - goto cleanup_exit; - } - unicam_dbg(3, dev, "sensor_node is %s\n", sensor_node->name); - asd->match_type = V4L2_ASYNC_MATCH_FWNODE; - asd->match.fwnode = of_fwnode_handle(sensor_node); - - remote_ep = of_graph_get_remote_endpoint(ep_node); - if (!remote_ep) { - unicam_dbg(3, dev, "can't get remote-endpoint\n"); - goto cleanup_exit; - } - unicam_dbg(3, dev, "remote_ep is %s\n", remote_ep->name); - v4l2_fwnode_endpoint_parse(of_fwnode_handle(remote_ep), ep); - unicam_dbg(3, dev, "parsed remote_ep to endpoint. nr_of_link_frequencies %u, bus_type %u\n", - ep->nr_of_link_frequencies, ep->bus_type); - - switch (ep->bus_type) { - case V4L2_MBUS_CSI2_DPHY: - if (ep->bus.mipi_csi2.num_data_lanes > - peripheral_data_lanes) { - unicam_err(dev, "Subdevice %s wants too many data lanes (%u > %u)\n", - sensor_node->name, - ep->bus.mipi_csi2.num_data_lanes, - peripheral_data_lanes); - goto cleanup_exit; - } - for (lane = 0; - lane < ep->bus.mipi_csi2.num_data_lanes; - lane++) { - if (ep->bus.mipi_csi2.data_lanes[lane] != lane + 1) { - unicam_err(dev, "Subdevice %s - incompatible data lane config\n", - sensor_node->name); - goto cleanup_exit; - } - } - dev->max_data_lanes = ep->bus.mipi_csi2.num_data_lanes; - dev->bus_flags = ep->bus.mipi_csi2.flags; - break; - case V4L2_MBUS_CCP2: - if (ep->bus.mipi_csi1.clock_lane != 0 || - ep->bus.mipi_csi1.data_lane != 1) { - unicam_err(dev, "Subdevice %s incompatible lane config\n", - sensor_node->name); - goto cleanup_exit; - } - dev->max_data_lanes = 1; - dev->bus_flags = ep->bus.mipi_csi1.strobe; - break; - default: - /* Unsupported bus type */ - unicam_err(dev, "sub-device %s is not a CSI2 or CCP2 device %d\n", - sensor_node->name, ep->bus_type); - goto cleanup_exit; - } - - /* Store bus type - CSI2 or CCP2 */ - dev->bus_type = ep->bus_type; - unicam_dbg(3, dev, "bus_type is %d\n", dev->bus_type); - - /* Store Virtual Channel number */ - dev->virtual_channel = ep->base.id; - - unicam_dbg(3, dev, "v4l2-endpoint: %s\n", - dev->bus_type == V4L2_MBUS_CSI2_DPHY ? "CSI2" : "CCP2"); - unicam_dbg(3, dev, "Virtual Channel=%d\n", dev->virtual_channel); - if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) - unicam_dbg(3, dev, "flags=0x%08x\n", ep->bus.mipi_csi2.flags); - unicam_dbg(3, dev, "num_data_lanes=%d\n", dev->max_data_lanes); - - unicam_dbg(1, dev, "found sub-device %s\n", sensor_node->name); - - v4l2_async_notifier_init(&dev->notifier); - - ret = v4l2_async_notifier_add_subdev(&dev->notifier, asd); - if (ret) { - unicam_err(dev, "Error adding subdevice - ret %d\n", ret); - goto cleanup_exit; - } - - dev->notifier.ops = &unicam_async_ops; - ret = v4l2_async_notifier_register(&dev->v4l2_dev, - &dev->notifier); - if (ret) { - unicam_err(dev, "Error registering async notifier - ret %d\n", - ret); - ret = -EINVAL; - } - -cleanup_exit: - if (remote_ep) - of_node_put(remote_ep); - if (sensor_node) - of_node_put(sensor_node); - if (ep_node) - of_node_put(ep_node); - - return ret; -} - -static int unicam_probe(struct platform_device *pdev) -{ - struct unicam_cfg *unicam_cfg; - struct unicam_device *unicam; - struct v4l2_ctrl_handler *hdl; - struct resource *res; - int ret; - - unicam = devm_kzalloc(&pdev->dev, sizeof(*unicam), GFP_KERNEL); - if (!unicam) - return -ENOMEM; - - unicam->pdev = pdev; - unicam_cfg = &unicam->cfg; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - unicam_cfg->base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(unicam_cfg->base)) { - unicam_err(unicam, "Failed to get main io block\n"); - return PTR_ERR(unicam_cfg->base); - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - unicam_cfg->clk_gate_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(unicam_cfg->clk_gate_base)) { - unicam_err(unicam, "Failed to get 2nd io block\n"); - return PTR_ERR(unicam_cfg->clk_gate_base); - } - - unicam->clock = devm_clk_get(&pdev->dev, "lp"); - if (IS_ERR(unicam->clock)) { - unicam_err(unicam, "Failed to get clock\n"); - return PTR_ERR(unicam->clock); - } - - ret = platform_get_irq(pdev, 0); - if (ret <= 0) { - dev_err(&pdev->dev, "No IRQ resource\n"); - return -ENODEV; - } - - ret = devm_request_irq(&pdev->dev, ret, unicam_isr, 0, - "unicam_capture0", unicam); - if (ret) { - dev_err(&pdev->dev, "Unable to request interrupt\n"); - return -EINVAL; - } - - unicam->mdev.dev = &pdev->dev; - strscpy(unicam->mdev.model, UNICAM_MODULE_NAME, - sizeof(unicam->mdev.model)); - strscpy(unicam->mdev.serial, "", sizeof(unicam->mdev.serial)); - snprintf(unicam->mdev.bus_info, sizeof(unicam->mdev.bus_info), - "platform:%s %s", - pdev->dev.driver->name, dev_name(&pdev->dev)); - unicam->mdev.hw_revision = 1; - - media_entity_pads_init(&unicam->node[IMAGE_PAD].video_dev.entity, 1, - &unicam->node[IMAGE_PAD].pad); - media_entity_pads_init(&unicam->node[METADATA_PAD].video_dev.entity, 1, - &unicam->node[METADATA_PAD].pad); - media_device_init(&unicam->mdev); - - unicam->v4l2_dev.mdev = &unicam->mdev; - - ret = v4l2_device_register(&pdev->dev, &unicam->v4l2_dev); - if (ret) { - unicam_err(unicam, - "Unable to register v4l2 device.\n"); - goto media_cleanup; - } - - ret = media_device_register(&unicam->mdev); - if (ret < 0) { - unicam_err(unicam, - "Unable to register media-controller device.\n"); - goto probe_out_v4l2_unregister; - } - - /* Reserve space for the controls */ - hdl = &unicam->node[IMAGE_PAD].ctrl_handler; - ret = v4l2_ctrl_handler_init(hdl, 16); - if (ret < 0) - goto media_unregister; - - /* set the driver data in platform device */ - platform_set_drvdata(pdev, unicam); - - ret = of_unicam_connect_subdevs(unicam); - if (ret) { - dev_err(&pdev->dev, "Failed to connect subdevs\n"); - goto free_hdl; - } - - /* Enable the block power domain */ - pm_runtime_enable(&pdev->dev); - - return 0; - -free_hdl: - v4l2_ctrl_handler_free(hdl); -media_unregister: - media_device_unregister(&unicam->mdev); -probe_out_v4l2_unregister: - v4l2_device_unregister(&unicam->v4l2_dev); -media_cleanup: - media_device_cleanup(&unicam->mdev); - - return ret; -} - -static int unicam_remove(struct platform_device *pdev) -{ - struct unicam_device *unicam = platform_get_drvdata(pdev); - - unicam_dbg(2, unicam, "%s\n", __func__); - - pm_runtime_disable(&pdev->dev); - - v4l2_async_notifier_unregister(&unicam->notifier); - v4l2_ctrl_handler_free(&unicam->node[IMAGE_PAD].ctrl_handler); - v4l2_device_unregister(&unicam->v4l2_dev); - unregister_nodes(unicam); - if (unicam->sensor_config) - v4l2_subdev_free_pad_config(unicam->sensor_config); - media_device_unregister(&unicam->mdev); - media_device_cleanup(&unicam->mdev); - - return 0; -} - -static const struct of_device_id unicam_of_match[] = { - { .compatible = "brcm,bcm2835-unicam", }, - { /* sentinel */ }, -}; -MODULE_DEVICE_TABLE(of, unicam_of_match); - -static struct platform_driver unicam_driver = { - .probe = unicam_probe, - .remove = unicam_remove, - .driver = { - .name = UNICAM_MODULE_NAME, - .of_match_table = of_match_ptr(unicam_of_match), - }, -}; - -module_platform_driver(unicam_driver); - -MODULE_AUTHOR("Dave Stevenson "); -MODULE_DESCRIPTION("BCM2835 Unicam driver"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(UNICAM_VERSION); --- a/drivers/media/platform/bcm2835/vc4-regs-unicam.h +++ /dev/null @@ -1,253 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ - -/* - * Copyright (C) 2017-2020 Raspberry Pi Trading. - * Dave Stevenson - */ - -#ifndef VC4_REGS_UNICAM_H -#define VC4_REGS_UNICAM_H - -/* - * The following values are taken from files found within the code drop - * made by Broadcom for the BCM21553 Graphics Driver, predominantly in - * brcm_usrlib/dag/vmcsx/vcinclude/hardware_vc4.h. - * They have been modified to be only the register offset. - */ -#define UNICAM_CTRL 0x000 -#define UNICAM_STA 0x004 -#define UNICAM_ANA 0x008 -#define UNICAM_PRI 0x00c -#define UNICAM_CLK 0x010 -#define UNICAM_CLT 0x014 -#define UNICAM_DAT0 0x018 -#define UNICAM_DAT1 0x01c -#define UNICAM_DAT2 0x020 -#define UNICAM_DAT3 0x024 -#define UNICAM_DLT 0x028 -#define UNICAM_CMP0 0x02c -#define UNICAM_CMP1 0x030 -#define UNICAM_CAP0 0x034 -#define UNICAM_CAP1 0x038 -#define UNICAM_ICTL 0x100 -#define UNICAM_ISTA 0x104 -#define UNICAM_IDI0 0x108 -#define UNICAM_IPIPE 0x10c -#define UNICAM_IBSA0 0x110 -#define UNICAM_IBEA0 0x114 -#define UNICAM_IBLS 0x118 -#define UNICAM_IBWP 0x11c -#define UNICAM_IHWIN 0x120 -#define UNICAM_IHSTA 0x124 -#define UNICAM_IVWIN 0x128 -#define UNICAM_IVSTA 0x12c -#define UNICAM_ICC 0x130 -#define UNICAM_ICS 0x134 -#define UNICAM_IDC 0x138 -#define UNICAM_IDPO 0x13c -#define UNICAM_IDCA 0x140 -#define UNICAM_IDCD 0x144 -#define UNICAM_IDS 0x148 -#define UNICAM_DCS 0x200 -#define UNICAM_DBSA0 0x204 -#define UNICAM_DBEA0 0x208 -#define UNICAM_DBWP 0x20c -#define UNICAM_DBCTL 0x300 -#define UNICAM_IBSA1 0x304 -#define UNICAM_IBEA1 0x308 -#define UNICAM_IDI1 0x30c -#define UNICAM_DBSA1 0x310 -#define UNICAM_DBEA1 0x314 -#define UNICAM_MISC 0x400 - -/* - * The following bitmasks are from the kernel released by Broadcom - * for Android - https://android.googlesource.com/kernel/bcm/ - * The Rhea, Hawaii, and Java chips all contain the same VideoCore4 - * Unicam block as BCM2835, as defined in eg - * arch/arm/mach-rhea/include/mach/rdb_A0/brcm_rdb_cam.h and similar. - * Values reworked to use the kernel BIT and GENMASK macros. - * - * Some of the bit mnenomics have been amended to match the datasheet. - */ -/* UNICAM_CTRL Register */ -#define UNICAM_CPE BIT(0) -#define UNICAM_MEM BIT(1) -#define UNICAM_CPR BIT(2) -#define UNICAM_CPM_MASK GENMASK(3, 3) -#define UNICAM_CPM_CSI2 0 -#define UNICAM_CPM_CCP2 1 -#define UNICAM_SOE BIT(4) -#define UNICAM_DCM_MASK GENMASK(5, 5) -#define UNICAM_DCM_STROBE 0 -#define UNICAM_DCM_DATA 1 -#define UNICAM_SLS BIT(6) -#define UNICAM_PFT_MASK GENMASK(11, 8) -#define UNICAM_OET_MASK GENMASK(20, 12) - -/* UNICAM_STA Register */ -#define UNICAM_SYN BIT(0) -#define UNICAM_CS BIT(1) -#define UNICAM_SBE BIT(2) -#define UNICAM_PBE BIT(3) -#define UNICAM_HOE BIT(4) -#define UNICAM_PLE BIT(5) -#define UNICAM_SSC BIT(6) -#define UNICAM_CRCE BIT(7) -#define UNICAM_OES BIT(8) -#define UNICAM_IFO BIT(9) -#define UNICAM_OFO BIT(10) -#define UNICAM_BFO BIT(11) -#define UNICAM_DL BIT(12) -#define UNICAM_PS BIT(13) -#define UNICAM_IS BIT(14) -#define UNICAM_PI0 BIT(15) -#define UNICAM_PI1 BIT(16) -#define UNICAM_FSI_S BIT(17) -#define UNICAM_FEI_S BIT(18) -#define UNICAM_LCI_S BIT(19) -#define UNICAM_BUF0_RDY BIT(20) -#define UNICAM_BUF0_NO BIT(21) -#define UNICAM_BUF1_RDY BIT(22) -#define UNICAM_BUF1_NO BIT(23) -#define UNICAM_DI BIT(24) - -#define UNICAM_STA_MASK_ALL \ - (UNICAM_DL + \ - UNICAM_SBE + \ - UNICAM_PBE + \ - UNICAM_HOE + \ - UNICAM_PLE + \ - UNICAM_SSC + \ - UNICAM_CRCE + \ - UNICAM_IFO + \ - UNICAM_OFO + \ - UNICAM_PS + \ - UNICAM_PI0 + \ - UNICAM_PI1) - -/* UNICAM_ANA Register */ -#define UNICAM_APD BIT(0) -#define UNICAM_BPD BIT(1) -#define UNICAM_AR BIT(2) -#define UNICAM_DDL BIT(3) -#define UNICAM_CTATADJ_MASK GENMASK(7, 4) -#define UNICAM_PTATADJ_MASK GENMASK(11, 8) - -/* UNICAM_PRI Register */ -#define UNICAM_PE BIT(0) -#define UNICAM_PT_MASK GENMASK(2, 1) -#define UNICAM_NP_MASK GENMASK(7, 4) -#define UNICAM_PP_MASK GENMASK(11, 8) -#define UNICAM_BS_MASK GENMASK(15, 12) -#define UNICAM_BL_MASK GENMASK(17, 16) - -/* UNICAM_CLK Register */ -#define UNICAM_CLE BIT(0) -#define UNICAM_CLPD BIT(1) -#define UNICAM_CLLPE BIT(2) -#define UNICAM_CLHSE BIT(3) -#define UNICAM_CLTRE BIT(4) -#define UNICAM_CLAC_MASK GENMASK(8, 5) -#define UNICAM_CLSTE BIT(29) - -/* UNICAM_CLT Register */ -#define UNICAM_CLT1_MASK GENMASK(7, 0) -#define UNICAM_CLT2_MASK GENMASK(15, 8) - -/* UNICAM_DATn Registers */ -#define UNICAM_DLE BIT(0) -#define UNICAM_DLPD BIT(1) -#define UNICAM_DLLPE BIT(2) -#define UNICAM_DLHSE BIT(3) -#define UNICAM_DLTRE BIT(4) -#define UNICAM_DLSM BIT(5) -#define UNICAM_DLFO BIT(28) -#define UNICAM_DLSTE BIT(29) - -#define UNICAM_DAT_MASK_ALL (UNICAM_DLSTE + UNICAM_DLFO) - -/* UNICAM_DLT Register */ -#define UNICAM_DLT1_MASK GENMASK(7, 0) -#define UNICAM_DLT2_MASK GENMASK(15, 8) -#define UNICAM_DLT3_MASK GENMASK(23, 16) - -/* UNICAM_ICTL Register */ -#define UNICAM_FSIE BIT(0) -#define UNICAM_FEIE BIT(1) -#define UNICAM_IBOB BIT(2) -#define UNICAM_FCM BIT(3) -#define UNICAM_TFC BIT(4) -#define UNICAM_LIP_MASK GENMASK(6, 5) -#define UNICAM_LCIE_MASK GENMASK(28, 16) - -/* UNICAM_IDI0/1 Register */ -#define UNICAM_ID0_MASK GENMASK(7, 0) -#define UNICAM_ID1_MASK GENMASK(15, 8) -#define UNICAM_ID2_MASK GENMASK(23, 16) -#define UNICAM_ID3_MASK GENMASK(31, 24) - -/* UNICAM_ISTA Register */ -#define UNICAM_FSI BIT(0) -#define UNICAM_FEI BIT(1) -#define UNICAM_LCI BIT(2) - -#define UNICAM_ISTA_MASK_ALL (UNICAM_FSI + UNICAM_FEI + UNICAM_LCI) - -/* UNICAM_IPIPE Register */ -#define UNICAM_PUM_MASK GENMASK(2, 0) - /* Unpacking modes */ - #define UNICAM_PUM_NONE 0 - #define UNICAM_PUM_UNPACK6 1 - #define UNICAM_PUM_UNPACK7 2 - #define UNICAM_PUM_UNPACK8 3 - #define UNICAM_PUM_UNPACK10 4 - #define UNICAM_PUM_UNPACK12 5 - #define UNICAM_PUM_UNPACK14 6 - #define UNICAM_PUM_UNPACK16 7 -#define UNICAM_DDM_MASK GENMASK(6, 3) -#define UNICAM_PPM_MASK GENMASK(9, 7) - /* Packing modes */ - #define UNICAM_PPM_NONE 0 - #define UNICAM_PPM_PACK8 1 - #define UNICAM_PPM_PACK10 2 - #define UNICAM_PPM_PACK12 3 - #define UNICAM_PPM_PACK14 4 - #define UNICAM_PPM_PACK16 5 -#define UNICAM_DEM_MASK GENMASK(11, 10) -#define UNICAM_DEBL_MASK GENMASK(14, 12) -#define UNICAM_ICM_MASK GENMASK(16, 15) -#define UNICAM_IDM_MASK GENMASK(17, 17) - -/* UNICAM_ICC Register */ -#define UNICAM_ICFL_MASK GENMASK(4, 0) -#define UNICAM_ICFH_MASK GENMASK(9, 5) -#define UNICAM_ICST_MASK GENMASK(12, 10) -#define UNICAM_ICLT_MASK GENMASK(15, 13) -#define UNICAM_ICLL_MASK GENMASK(31, 16) - -/* UNICAM_DCS Register */ -#define UNICAM_DIE BIT(0) -#define UNICAM_DIM BIT(1) -#define UNICAM_DBOB BIT(3) -#define UNICAM_FDE BIT(4) -#define UNICAM_LDP BIT(5) -#define UNICAM_EDL_MASK GENMASK(15, 8) - -/* UNICAM_DBCTL Register */ -#define UNICAM_DBEN BIT(0) -#define UNICAM_BUF0_IE BIT(1) -#define UNICAM_BUF1_IE BIT(2) - -/* UNICAM_CMP[0,1] register */ -#define UNICAM_PCE BIT(31) -#define UNICAM_GI BIT(9) -#define UNICAM_CPH BIT(8) -#define UNICAM_PCVC_MASK GENMASK(7, 6) -#define UNICAM_PCDT_MASK GENMASK(5, 0) - -/* UNICAM_MISC register */ -#define UNICAM_FL0 BIT(6) -#define UNICAM_FL1 BIT(9) - -#endif