diff options
Diffstat (limited to 'drivers/media/pci/intel/ipu6/ipu6-isys-video.c')
| -rw-r--r-- | drivers/media/pci/intel/ipu6/ipu6-isys-video.c | 1420 |
1 files changed, 1420 insertions, 0 deletions
diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-video.c b/drivers/media/pci/intel/ipu6/ipu6-isys-video.c new file mode 100644 index 000000000000..c8a33e1e910c --- /dev/null +++ b/drivers/media/pci/intel/ipu6/ipu6-isys-video.c @@ -0,0 +1,1420 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2013--2024 Intel Corporation + */ + +#include <linux/align.h> +#include <linux/bits.h> +#include <linux/bug.h> +#include <linux/completion.h> +#include <linux/container_of.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/math64.h> +#include <linux/minmax.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/pm_runtime.h> +#include <linux/spinlock.h> +#include <linux/string.h> + +#include <media/media-entity.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-dev.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-subdev.h> +#include <media/videobuf2-v4l2.h> + +#include "ipu6.h" +#include "ipu6-bus.h" +#include "ipu6-cpd.h" +#include "ipu6-fw-isys.h" +#include "ipu6-isys.h" +#include "ipu6-isys-csi2.h" +#include "ipu6-isys-queue.h" +#include "ipu6-isys-video.h" +#include "ipu6-platform-regs.h" + +const struct ipu6_isys_pixelformat ipu6_isys_pfmts[] = { + { V4L2_PIX_FMT_SBGGR12, 16, 12, MEDIA_BUS_FMT_SBGGR12_1X12, + IPU6_FW_ISYS_FRAME_FORMAT_RAW16 }, + { V4L2_PIX_FMT_SGBRG12, 16, 12, MEDIA_BUS_FMT_SGBRG12_1X12, + IPU6_FW_ISYS_FRAME_FORMAT_RAW16 }, + { V4L2_PIX_FMT_SGRBG12, 16, 12, MEDIA_BUS_FMT_SGRBG12_1X12, + IPU6_FW_ISYS_FRAME_FORMAT_RAW16 }, + { V4L2_PIX_FMT_SRGGB12, 16, 12, MEDIA_BUS_FMT_SRGGB12_1X12, + IPU6_FW_ISYS_FRAME_FORMAT_RAW16 }, + { V4L2_PIX_FMT_SBGGR10, 16, 10, MEDIA_BUS_FMT_SBGGR10_1X10, + IPU6_FW_ISYS_FRAME_FORMAT_RAW16 }, + { V4L2_PIX_FMT_SGBRG10, 16, 10, MEDIA_BUS_FMT_SGBRG10_1X10, + IPU6_FW_ISYS_FRAME_FORMAT_RAW16 }, + { V4L2_PIX_FMT_SGRBG10, 16, 10, MEDIA_BUS_FMT_SGRBG10_1X10, + IPU6_FW_ISYS_FRAME_FORMAT_RAW16 }, + { V4L2_PIX_FMT_SRGGB10, 16, 10, MEDIA_BUS_FMT_SRGGB10_1X10, + IPU6_FW_ISYS_FRAME_FORMAT_RAW16 }, + { V4L2_PIX_FMT_SBGGR8, 8, 8, MEDIA_BUS_FMT_SBGGR8_1X8, + IPU6_FW_ISYS_FRAME_FORMAT_RAW8 }, + { V4L2_PIX_FMT_SGBRG8, 8, 8, MEDIA_BUS_FMT_SGBRG8_1X8, + IPU6_FW_ISYS_FRAME_FORMAT_RAW8 }, + { V4L2_PIX_FMT_SGRBG8, 8, 8, MEDIA_BUS_FMT_SGRBG8_1X8, + IPU6_FW_ISYS_FRAME_FORMAT_RAW8 }, + { V4L2_PIX_FMT_SRGGB8, 8, 8, MEDIA_BUS_FMT_SRGGB8_1X8, + IPU6_FW_ISYS_FRAME_FORMAT_RAW8 }, + { V4L2_PIX_FMT_SBGGR12P, 12, 12, MEDIA_BUS_FMT_SBGGR12_1X12, + IPU6_FW_ISYS_FRAME_FORMAT_RAW12 }, + { V4L2_PIX_FMT_SGBRG12P, 12, 12, MEDIA_BUS_FMT_SGBRG12_1X12, + IPU6_FW_ISYS_FRAME_FORMAT_RAW12 }, + { V4L2_PIX_FMT_SGRBG12P, 12, 12, MEDIA_BUS_FMT_SGRBG12_1X12, + IPU6_FW_ISYS_FRAME_FORMAT_RAW12 }, + { V4L2_PIX_FMT_SRGGB12P, 12, 12, MEDIA_BUS_FMT_SRGGB12_1X12, + IPU6_FW_ISYS_FRAME_FORMAT_RAW12 }, + { V4L2_PIX_FMT_SBGGR10P, 10, 10, MEDIA_BUS_FMT_SBGGR10_1X10, + IPU6_FW_ISYS_FRAME_FORMAT_RAW10 }, + { V4L2_PIX_FMT_SGBRG10P, 10, 10, MEDIA_BUS_FMT_SGBRG10_1X10, + IPU6_FW_ISYS_FRAME_FORMAT_RAW10 }, + { V4L2_PIX_FMT_SGRBG10P, 10, 10, MEDIA_BUS_FMT_SGRBG10_1X10, + IPU6_FW_ISYS_FRAME_FORMAT_RAW10 }, + { V4L2_PIX_FMT_SRGGB10P, 10, 10, MEDIA_BUS_FMT_SRGGB10_1X10, + IPU6_FW_ISYS_FRAME_FORMAT_RAW10 }, + { V4L2_PIX_FMT_UYVY, 16, 16, MEDIA_BUS_FMT_UYVY8_1X16, + IPU6_FW_ISYS_FRAME_FORMAT_UYVY}, + { V4L2_PIX_FMT_YUYV, 16, 16, MEDIA_BUS_FMT_YUYV8_1X16, + IPU6_FW_ISYS_FRAME_FORMAT_YUYV}, + { V4L2_PIX_FMT_RGB565, 16, 16, MEDIA_BUS_FMT_RGB565_1X16, + IPU6_FW_ISYS_FRAME_FORMAT_RGB565 }, + { V4L2_PIX_FMT_BGR24, 24, 24, MEDIA_BUS_FMT_RGB888_1X24, + IPU6_FW_ISYS_FRAME_FORMAT_RGBA888 }, + { V4L2_META_FMT_GENERIC_8, 8, 8, MEDIA_BUS_FMT_META_8, + IPU6_FW_ISYS_FRAME_FORMAT_RAW8, true }, + { V4L2_META_FMT_GENERIC_CSI2_10, 10, 10, MEDIA_BUS_FMT_META_10, + IPU6_FW_ISYS_FRAME_FORMAT_RAW10, true }, + { V4L2_META_FMT_GENERIC_CSI2_12, 12, 12, MEDIA_BUS_FMT_META_12, + IPU6_FW_ISYS_FRAME_FORMAT_RAW12, true }, + { V4L2_META_FMT_GENERIC_CSI2_16, 16, 16, MEDIA_BUS_FMT_META_16, + IPU6_FW_ISYS_FRAME_FORMAT_RAW16, true }, +}; + +static int video_open(struct file *file) +{ + struct ipu6_isys_video *av = video_drvdata(file); + struct ipu6_isys *isys = av->isys; + struct ipu6_bus_device *adev = isys->adev; + + mutex_lock(&isys->mutex); + if (isys->need_reset) { + mutex_unlock(&isys->mutex); + dev_warn(&adev->auxdev.dev, "isys power cycle required\n"); + return -EIO; + } + mutex_unlock(&isys->mutex); + + return v4l2_fh_open(file); +} + +const struct ipu6_isys_pixelformat * +ipu6_isys_get_isys_format(u32 pixelformat, u32 type) +{ + const struct ipu6_isys_pixelformat *default_pfmt = NULL; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(ipu6_isys_pfmts); i++) { + const struct ipu6_isys_pixelformat *pfmt = &ipu6_isys_pfmts[i]; + + if (type && ((!pfmt->is_meta && + type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || + (pfmt->is_meta && + type != V4L2_BUF_TYPE_META_CAPTURE))) + continue; + + if (!default_pfmt) + default_pfmt = pfmt; + + if (pfmt->pixelformat != pixelformat) + continue; + + return pfmt; + } + + return default_pfmt; +} + +static int ipu6_isys_vidioc_querycap(struct file *file, void *fh, + struct v4l2_capability *cap) +{ + struct ipu6_isys_video *av = video_drvdata(file); + + strscpy(cap->driver, IPU6_ISYS_NAME, sizeof(cap->driver)); + strscpy(cap->card, av->isys->media_dev.model, sizeof(cap->card)); + + return 0; +} + +static int ipu6_isys_vidioc_enum_fmt(struct file *file, void *fh, + struct v4l2_fmtdesc *f) +{ + unsigned int i, num_found; + + for (i = 0, num_found = 0; i < ARRAY_SIZE(ipu6_isys_pfmts); i++) { + if ((ipu6_isys_pfmts[i].is_meta && + f->type != V4L2_BUF_TYPE_META_CAPTURE) || + (!ipu6_isys_pfmts[i].is_meta && + f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)) + continue; + + if (f->mbus_code && f->mbus_code != ipu6_isys_pfmts[i].code) + continue; + + if (num_found < f->index) { + num_found++; + continue; + } + + f->flags = 0; + f->pixelformat = ipu6_isys_pfmts[i].pixelformat; + + return 0; + } + + return -EINVAL; +} + +static int ipu6_isys_vidioc_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + unsigned int i; + + if (fsize->index > 0) + return -EINVAL; + + for (i = 0; i < ARRAY_SIZE(ipu6_isys_pfmts); i++) { + if (fsize->pixel_format != ipu6_isys_pfmts[i].pixelformat) + continue; + + fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; + fsize->stepwise.min_width = IPU6_ISYS_MIN_WIDTH; + fsize->stepwise.max_width = IPU6_ISYS_MAX_WIDTH; + fsize->stepwise.min_height = IPU6_ISYS_MIN_HEIGHT; + fsize->stepwise.max_height = IPU6_ISYS_MAX_HEIGHT; + fsize->stepwise.step_width = 2; + fsize->stepwise.step_height = 2; + + return 0; + } + + return -EINVAL; +} + +static int ipu6_isys_vidioc_g_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct ipu6_isys_video *av = video_drvdata(file); + + f->fmt.pix = av->pix_fmt; + + return 0; +} + +static int ipu6_isys_vidioc_g_fmt_meta_cap(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct ipu6_isys_video *av = video_drvdata(file); + + f->fmt.meta = av->meta_fmt; + + return 0; +} + +static void ipu6_isys_try_fmt_cap(struct ipu6_isys_video *av, u32 type, + u32 *format, u32 *width, u32 *height, + u32 *bytesperline, u32 *sizeimage) +{ + const struct ipu6_isys_pixelformat *pfmt = + ipu6_isys_get_isys_format(*format, type); + + *format = pfmt->pixelformat; + *width = clamp(*width, IPU6_ISYS_MIN_WIDTH, IPU6_ISYS_MAX_WIDTH); + *height = clamp(*height, IPU6_ISYS_MIN_HEIGHT, IPU6_ISYS_MAX_HEIGHT); + + if (pfmt->bpp != pfmt->bpp_packed) + *bytesperline = *width * DIV_ROUND_UP(pfmt->bpp, BITS_PER_BYTE); + else + *bytesperline = DIV_ROUND_UP(*width * pfmt->bpp, BITS_PER_BYTE); + + *bytesperline = ALIGN(*bytesperline, av->isys->line_align); + + /* + * (height + 1) * bytesperline due to a hardware issue: the DMA unit + * is a power of two, and a line should be transferred as few units + * as possible. The result is that up to line length more data than + * the image size may be transferred to memory after the image. + * Another limitation is the GDA allocation unit size. For low + * resolution it gives a bigger number. Use larger one to avoid + * memory corruption. + */ + *sizeimage = *bytesperline * *height + + max(*bytesperline, + av->isys->pdata->ipdata->isys_dma_overshoot); +} + +static void __ipu6_isys_vidioc_try_fmt_vid_cap(struct ipu6_isys_video *av, + struct v4l2_format *f) +{ + ipu6_isys_try_fmt_cap(av, f->type, &f->fmt.pix.pixelformat, + &f->fmt.pix.width, &f->fmt.pix.height, + &f->fmt.pix.bytesperline, &f->fmt.pix.sizeimage); + + f->fmt.pix.field = V4L2_FIELD_NONE; + f->fmt.pix.colorspace = V4L2_COLORSPACE_RAW; + f->fmt.pix.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; + f->fmt.pix.quantization = V4L2_QUANTIZATION_DEFAULT; + f->fmt.pix.xfer_func = V4L2_XFER_FUNC_DEFAULT; +} + +static int ipu6_isys_vidioc_try_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct ipu6_isys_video *av = video_drvdata(file); + + if (vb2_is_busy(&av->aq.vbq)) + return -EBUSY; + + __ipu6_isys_vidioc_try_fmt_vid_cap(av, f); + + return 0; +} + +static int __ipu6_isys_vidioc_try_fmt_meta_cap(struct ipu6_isys_video *av, + struct v4l2_format *f) +{ + ipu6_isys_try_fmt_cap(av, f->type, &f->fmt.meta.dataformat, + &f->fmt.meta.width, &f->fmt.meta.height, + &f->fmt.meta.bytesperline, + &f->fmt.meta.buffersize); + + return 0; +} + +static int ipu6_isys_vidioc_try_fmt_meta_cap(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct ipu6_isys_video *av = video_drvdata(file); + + __ipu6_isys_vidioc_try_fmt_meta_cap(av, f); + + return 0; +} + +static int ipu6_isys_vidioc_s_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct ipu6_isys_video *av = video_drvdata(file); + + ipu6_isys_vidioc_try_fmt_vid_cap(file, fh, f); + av->pix_fmt = f->fmt.pix; + + return 0; +} + +static int ipu6_isys_vidioc_s_fmt_meta_cap(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct ipu6_isys_video *av = video_drvdata(file); + + if (vb2_is_busy(&av->aq.vbq)) + return -EBUSY; + + ipu6_isys_vidioc_try_fmt_meta_cap(file, fh, f); + av->meta_fmt = f->fmt.meta; + + return 0; +} + +static int ipu6_isys_vidioc_reqbufs(struct file *file, void *priv, + struct v4l2_requestbuffers *p) +{ + struct ipu6_isys_video *av = video_drvdata(file); + int ret; + + av->aq.vbq.is_multiplanar = V4L2_TYPE_IS_MULTIPLANAR(p->type); + av->aq.vbq.is_output = V4L2_TYPE_IS_OUTPUT(p->type); + + ret = vb2_queue_change_type(&av->aq.vbq, p->type); + if (ret) + return ret; + + return vb2_ioctl_reqbufs(file, priv, p); +} + +static int ipu6_isys_vidioc_create_bufs(struct file *file, void *priv, + struct v4l2_create_buffers *p) +{ + struct ipu6_isys_video *av = video_drvdata(file); + int ret; + + av->aq.vbq.is_multiplanar = V4L2_TYPE_IS_MULTIPLANAR(p->format.type); + av->aq.vbq.is_output = V4L2_TYPE_IS_OUTPUT(p->format.type); + + ret = vb2_queue_change_type(&av->aq.vbq, p->format.type); + if (ret) + return ret; + + return vb2_ioctl_create_bufs(file, priv, p); +} + +static int link_validate(struct media_link *link) +{ + struct ipu6_isys_video *av = + container_of(link->sink, struct ipu6_isys_video, pad); + struct device *dev = &av->isys->adev->auxdev.dev; + struct v4l2_subdev_state *s_state; + struct v4l2_subdev *s_sd; + struct v4l2_mbus_framefmt *s_fmt; + struct media_pad *s_pad; + u32 s_stream, code; + int ret = -EPIPE; + + if (!link->source->entity) + return ret; + + s_sd = media_entity_to_v4l2_subdev(link->source->entity); + s_state = v4l2_subdev_get_unlocked_active_state(s_sd); + if (!s_state) + return ret; + + dev_dbg(dev, "validating link \"%s\":%u -> \"%s\"\n", + link->source->entity->name, link->source->index, + link->sink->entity->name); + + s_pad = media_pad_remote_pad_first(&av->pad); + s_stream = ipu6_isys_get_src_stream_by_src_pad(s_sd, s_pad->index); + + v4l2_subdev_lock_state(s_state); + + s_fmt = v4l2_subdev_state_get_format(s_state, s_pad->index, s_stream); + if (!s_fmt) { + dev_err(dev, "failed to get source pad format\n"); + goto unlock; + } + + code = ipu6_isys_get_isys_format(ipu6_isys_get_format(av), 0)->code; + + if (s_fmt->width != ipu6_isys_get_frame_width(av) || + s_fmt->height != ipu6_isys_get_frame_height(av) || + s_fmt->code != code) { + dev_dbg(dev, "format mismatch %dx%d,%x != %dx%d,%x\n", + s_fmt->width, s_fmt->height, s_fmt->code, + ipu6_isys_get_frame_width(av), + ipu6_isys_get_frame_height(av), code); + goto unlock; + } + + v4l2_subdev_unlock_state(s_state); + + return 0; +unlock: + v4l2_subdev_unlock_state(s_state); + + return ret; +} + +static void get_stream_opened(struct ipu6_isys_video *av) +{ + unsigned long flags; + + spin_lock_irqsave(&av->isys->streams_lock, flags); + av->isys->stream_opened++; + spin_unlock_irqrestore(&av->isys->streams_lock, flags); +} + +static void put_stream_opened(struct ipu6_isys_video *av) +{ + unsigned long flags; + + spin_lock_irqsave(&av->isys->streams_lock, flags); + av->isys->stream_opened--; + spin_unlock_irqrestore(&av->isys->streams_lock, flags); +} + +static int ipu6_isys_fw_pin_cfg(struct ipu6_isys_video *av, + struct ipu6_fw_isys_stream_cfg_data_abi *cfg) +{ + struct media_pad *src_pad = media_pad_remote_pad_first(&av->pad); + struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(src_pad->entity); + struct ipu6_fw_isys_input_pin_info_abi *input_pin; + struct ipu6_fw_isys_output_pin_info_abi *output_pin; + struct ipu6_isys_stream *stream = av->stream; + struct ipu6_isys_queue *aq = &av->aq; + struct v4l2_mbus_framefmt fmt; + const struct ipu6_isys_pixelformat *pfmt = + ipu6_isys_get_isys_format(ipu6_isys_get_format(av), 0); + struct v4l2_rect v4l2_crop; + struct ipu6_isys *isys = av->isys; + struct device *dev = &isys->adev->auxdev.dev; + int input_pins = cfg->nof_input_pins++; + int output_pins; + u32 src_stream; + int ret; + + src_stream = ipu6_isys_get_src_stream_by_src_pad(sd, src_pad->index); + ret = ipu6_isys_get_stream_pad_fmt(sd, src_pad->index, src_stream, + &fmt); + if (ret < 0) { + dev_err(dev, "can't get stream format (%d)\n", ret); + return ret; + } + + ret = ipu6_isys_get_stream_pad_crop(sd, src_pad->index, src_stream, + &v4l2_crop); + if (ret < 0) { + dev_err(dev, "can't get stream crop (%d)\n", ret); + return ret; + } + + input_pin = &cfg->input_pins[input_pins]; + input_pin->input_res.width = fmt.width; + input_pin->input_res.height = fmt.height; + input_pin->dt = av->dt; + input_pin->bits_per_pix = pfmt->bpp_packed; + input_pin->mapped_dt = 0x40; /* invalid mipi data type */ + input_pin->mipi_decompression = 0; + input_pin->capture_mode = IPU6_FW_ISYS_CAPTURE_MODE_REGULAR; + input_pin->mipi_store_mode = pfmt->bpp == pfmt->bpp_packed ? + IPU6_FW_ISYS_MIPI_STORE_MODE_DISCARD_LONG_HEADER : + IPU6_FW_ISYS_MIPI_STORE_MODE_NORMAL; + input_pin->crop_first_and_last_lines = v4l2_crop.top & 1; + + output_pins = cfg->nof_output_pins++; + aq->fw_output = output_pins; + stream->output_pins[output_pins].pin_ready = ipu6_isys_queue_buf_ready; + stream->output_pins[output_pins].aq = aq; + + output_pin = &cfg->output_pins[output_pins]; + output_pin->input_pin_id = input_pins; + output_pin->output_res.width = ipu6_isys_get_frame_width(av); + output_pin->output_res.height = ipu6_isys_get_frame_height(av); + + output_pin->stride = ipu6_isys_get_bytes_per_line(av); + if (pfmt->bpp != pfmt->bpp_packed) + output_pin->pt = IPU6_FW_ISYS_PIN_TYPE_RAW_SOC; + else + output_pin->pt = IPU6_FW_ISYS_PIN_TYPE_MIPI; + output_pin->ft = pfmt->css_pixelformat; + output_pin->send_irq = 1; + memset(output_pin->ts_offsets, 0, sizeof(output_pin->ts_offsets)); + output_pin->s2m_pixel_soc_pixel_remapping = + S2M_PIXEL_SOC_PIXEL_REMAPPING_FLAG_NO_REMAPPING; + output_pin->csi_be_soc_pixel_remapping = + CSI_BE_SOC_PIXEL_REMAPPING_FLAG_NO_REMAPPING; + + output_pin->snoopable = true; + output_pin->error_handling_enable = false; + output_pin->sensor_type = isys->sensor_type++; + if (isys->sensor_type > isys->pdata->ipdata->sensor_type_end) + isys->sensor_type = isys->pdata->ipdata->sensor_type_start; + + return 0; +} + +static int start_stream_firmware(struct ipu6_isys_video *av, + struct ipu6_isys_buffer_list *bl) +{ + struct ipu6_fw_isys_stream_cfg_data_abi *stream_cfg; + struct ipu6_fw_isys_frame_buff_set_abi *buf = NULL; + struct ipu6_isys_stream *stream = av->stream; + struct device *dev = &av->isys->adev->auxdev.dev; + struct isys_fw_msgs *msg = NULL; + struct ipu6_isys_queue *aq; + int ret, retout, tout; + u16 send_type; + + msg = ipu6_get_fw_msg_buf(stream); + if (!msg) + return -ENOMEM; + + stream_cfg = &msg->fw_msg.stream; + stream_cfg->src = stream->stream_source; + stream_cfg->vc = stream->vc; + stream_cfg->isl_use = 0; + stream_cfg->sensor_type = IPU6_FW_ISYS_SENSOR_MODE_NORMAL; + + list_for_each_entry(aq, &stream->queues, node) { + struct ipu6_isys_video *__av = ipu6_isys_queue_to_video(aq); + + ret = ipu6_isys_fw_pin_cfg(__av, stream_cfg); + if (ret < 0) { + ipu6_put_fw_msg_buf(av->isys, (u64)stream_cfg); + return ret; + } + } + + ipu6_fw_isys_dump_stream_cfg(dev, stream_cfg); + + stream->nr_output_pins = stream_cfg->nof_output_pins; + + reinit_completion(&stream->stream_open_completion); + + ret = ipu6_fw_isys_complex_cmd(av->isys, stream->stream_handle, + stream_cfg, msg->dma_addr, + sizeof(*stream_cfg), + IPU6_FW_ISYS_SEND_TYPE_STREAM_OPEN); + if (ret < 0) { + dev_err(dev, "can't open stream (%d)\n", ret); + ipu6_put_fw_msg_buf(av->isys, (u64)stream_cfg); + return ret; + } + + get_stream_opened(av); + + tout = wait_for_completion_timeout(&stream->stream_open_completion, + IPU6_FW_CALL_TIMEOUT_JIFFIES); + + ipu6_put_fw_msg_buf(av->isys, (u64)stream_cfg); + + if (!tout) { + dev_err(dev, "stream open time out\n"); + ret = -ETIMEDOUT; + goto out_put_stream_opened; + } + if (stream->error) { + dev_err(dev, "stream open error: %d\n", stream->error); + ret = -EIO; + goto out_put_stream_opened; + } + dev_dbg(dev, "start stream: open complete\n"); + + if (bl) { + msg = ipu6_get_fw_msg_buf(stream); + if (!msg) { + ret = -ENOMEM; + goto out_put_stream_opened; + } + buf = &msg->fw_msg.frame; + ipu6_isys_buf_to_fw_frame_buf(buf, stream, bl); + ipu6_isys_buffer_list_queue(bl, + IPU6_ISYS_BUFFER_LIST_FL_ACTIVE, 0); + } + + reinit_completion(&stream->stream_start_completion); + + if (bl) { + send_type = IPU6_FW_ISYS_SEND_TYPE_STREAM_START_AND_CAPTURE; + ipu6_fw_isys_dump_frame_buff_set(dev, buf, + stream_cfg->nof_output_pins); + ret = ipu6_fw_isys_complex_cmd(av->isys, stream->stream_handle, + buf, msg->dma_addr, + sizeof(*buf), send_type); + } else { + send_type = IPU6_FW_ISYS_SEND_TYPE_STREAM_START; + ret = ipu6_fw_isys_simple_cmd(av->isys, stream->stream_handle, + send_type); + } + + if (ret < 0) { + dev_err(dev, "can't start streaming (%d)\n", ret); + goto out_stream_close; + } + + tout = wait_for_completion_timeout(&stream->stream_start_completion, + IPU6_FW_CALL_TIMEOUT_JIFFIES); + if (!tout) { + dev_err(dev, "stream start time out\n"); + ret = -ETIMEDOUT; + goto out_stream_close; + } + if (stream->error) { + dev_err(dev, "stream start error: %d\n", stream->error); + ret = -EIO; + goto out_stream_close; + } + dev_dbg(dev, "start stream: complete\n"); + + return 0; + +out_stream_close: + reinit_completion(&stream->stream_close_completion); + + retout = ipu6_fw_isys_simple_cmd(av->isys, + stream->stream_handle, + IPU6_FW_ISYS_SEND_TYPE_STREAM_CLOSE); + if (retout < 0) { + dev_dbg(dev, "can't close stream (%d)\n", retout); + goto out_put_stream_opened; + } + + tout = wait_for_completion_timeout(&stream->stream_close_completion, + IPU6_FW_CALL_TIMEOUT_JIFFIES); + if (!tout) + dev_err(dev, "stream close time out\n"); + else if (stream->error) + dev_err(dev, "stream close error: %d\n", stream->error); + else + dev_dbg(dev, "stream close complete\n"); + +out_put_stream_opened: + put_stream_opened(av); + + return ret; +} + +static void stop_streaming_firmware(struct ipu6_isys_video *av) +{ + struct device *dev = &av->isys->adev->auxdev.dev; + struct ipu6_isys_stream *stream = av->stream; + int ret, tout; + + reinit_completion(&stream->stream_stop_completion); + + ret = ipu6_fw_isys_simple_cmd(av->isys, stream->stream_handle, + IPU6_FW_ISYS_SEND_TYPE_STREAM_FLUSH); + + if (ret < 0) { + dev_err(dev, "can't stop stream (%d)\n", ret); + return; + } + + tout = wait_for_completion_timeout(&stream->stream_stop_completion, + IPU6_FW_CALL_TIMEOUT_JIFFIES); + if (!tout) + dev_warn(dev, "stream stop time out\n"); + else if (stream->error) + dev_warn(dev, "stream stop error: %d\n", stream->error); + else + dev_dbg(dev, "stop stream: complete\n"); +} + +static void close_streaming_firmware(struct ipu6_isys_video *av) +{ + struct ipu6_isys_stream *stream = av->stream; + struct device *dev = &av->isys->adev->auxdev.dev; + int ret, tout; + + reinit_completion(&stream->stream_close_completion); + + ret = ipu6_fw_isys_simple_cmd(av->isys, stream->stream_handle, + IPU6_FW_ISYS_SEND_TYPE_STREAM_CLOSE); + if (ret < 0) { + dev_err(dev, "can't close stream (%d)\n", ret); + return; + } + + tout = wait_for_completion_timeout(&stream->stream_close_completion, + IPU6_FW_CALL_TIMEOUT_JIFFIES); + if (!tout) + dev_warn(dev, "stream close time out\n"); + else if (stream->error) + dev_warn(dev, "stream close error: %d\n", stream->error); + else + dev_dbg(dev, "close stream: complete\n"); + + put_stream_opened(av); +} + +int ipu6_isys_video_prepare_stream(struct ipu6_isys_video *av, + struct media_entity *source_entity, + int nr_queues) +{ + struct ipu6_isys_stream *stream = av->stream; + struct ipu6_isys_csi2 *csi2; + + if (WARN_ON(stream->nr_streaming)) + return -EINVAL; + + stream->nr_queues = nr_queues; + atomic_set(&stream->sequence, 0); + + stream->seq_index = 0; + memset(stream->seq, 0, sizeof(stream->seq)); + + if (WARN_ON(!list_empty(&stream->queues))) + return -EINVAL; + + stream->stream_source = stream->asd->source; + csi2 = ipu6_isys_subdev_to_csi2(stream->asd); + csi2->receiver_errors = 0; + stream->source_entity = source_entity; + + dev_dbg(&av->isys->adev->auxdev.dev, + "prepare stream: external entity %s\n", + stream->source_entity->name); + + return 0; +} + +void ipu6_isys_configure_stream_watermark(struct ipu6_isys_video *av, + bool state) +{ + struct ipu6_isys *isys = av->isys; + struct ipu6_isys_csi2 *csi2 = NULL; + struct isys_iwake_watermark *iwake_watermark = &isys->iwake_watermark; + struct device *dev = &isys->adev->auxdev.dev; + struct v4l2_mbus_framefmt format; + struct v4l2_subdev *esd; + struct v4l2_control hb = { .id = V4L2_CID_HBLANK, .value = 0 }; + unsigned int bpp, lanes; + s64 link_freq = 0; + u64 pixel_rate = 0; + int ret; + + if (!state) + return; + + esd = media_entity_to_v4l2_subdev(av->stream->source_entity); + + av->watermark.width = ipu6_isys_get_frame_width(av); + av->watermark.height = ipu6_isys_get_frame_height(av); + av->watermark.sram_gran_shift = isys->pdata->ipdata->sram_gran_shift; + av->watermark.sram_gran_size = isys->pdata->ipdata->sram_gran_size; + + ret = v4l2_g_ctrl(esd->ctrl_handler, &hb); + if (!ret && hb.value >= 0) + av->watermark.hblank = hb.value; + else + av->watermark.hblank = 0; + + csi2 = ipu6_isys_subdev_to_csi2(av->stream->asd); + link_freq = ipu6_isys_csi2_get_link_freq(csi2); + if (link_freq > 0) { + lanes = csi2->nlanes; + ret = ipu6_isys_get_stream_pad_fmt(&csi2->asd.sd, 0, + av->source_stream, &format); + if (!ret) { + bpp = ipu6_isys_mbus_code_to_bpp(format.code); + pixel_rate = mul_u64_u32_div(link_freq, lanes * 2, bpp); + } + } + + av->watermark.pixel_rate = pixel_rate; + + if (!pixel_rate) { + mutex_lock(&iwake_watermark->mutex); + iwake_watermark->force_iwake_disable = true; + mutex_unlock(&iwake_watermark->mutex); + dev_warn(dev, "unexpected pixel_rate from %s, disable iwake.\n", + av->stream->source_entity->name); + } +} + +static void calculate_stream_datarate(struct ipu6_isys_video *av) +{ + struct video_stream_watermark *watermark = &av->watermark; + const struct ipu6_isys_pixelformat *pfmt = + ipu6_isys_get_isys_format(ipu6_isys_get_format(av), 0); + u32 pages_per_line, pb_bytes_per_line, pixels_per_line, bytes_per_line; + u64 line_time_ns, stream_data_rate; + u16 shift, size; + + shift = watermark->sram_gran_shift; + size = watermark->sram_gran_size; + + pixels_per_line = watermark->width + watermark->hblank; + line_time_ns = div_u64(pixels_per_line * NSEC_PER_SEC, + watermark->pixel_rate); + bytes_per_line = watermark->width * pfmt->bpp / 8; + pages_per_line = DIV_ROUND_UP(bytes_per_line, size); + pb_bytes_per_line = pages_per_line << shift; + stream_data_rate = div64_u64(pb_bytes_per_line * 1000, line_time_ns); + + watermark->stream_data_rate = stream_data_rate; +} + +void ipu6_isys_update_stream_watermark(struct ipu6_isys_video *av, bool state) +{ + struct isys_iwake_watermark *iwake_watermark = + &av->isys->iwake_watermark; + + if (!av->watermark.pixel_rate) + return; + + if (state) { + calculate_stream_datarate(av); + mutex_lock(&iwake_watermark->mutex); + list_add(&av->watermark.stream_node, + &iwake_watermark->video_list); + mutex_unlock(&iwake_watermark->mutex); + } else { + av->watermark.stream_data_rate = 0; + mutex_lock(&iwake_watermark->mutex); + list_del(&av->watermark.stream_node); + mutex_unlock(&iwake_watermark->mutex); + } + + update_watermark_setting(av->isys); +} + +void ipu6_isys_put_stream(struct ipu6_isys_stream *stream) +{ + struct device *dev; + unsigned int i; + unsigned long flags; + + if (!stream) { + pr_err("ipu6-isys: no available stream\n"); + return; + } + + dev = &stream->isys->adev->auxdev.dev; + + spin_lock_irqsave(&stream->isys->streams_lock, flags); + for (i = 0; i < IPU6_ISYS_MAX_STREAMS; i++) { + if (&stream->isys->streams[i] == stream) { + if (stream->isys->streams_ref_count[i] > 0) + stream->isys->streams_ref_count[i]--; + else + dev_warn(dev, "invalid stream %d\n", i); + + break; + } + } + spin_unlock_irqrestore(&stream->isys->streams_lock, flags); +} + +static struct ipu6_isys_stream * +ipu6_isys_get_stream(struct ipu6_isys_video *av, struct ipu6_isys_subdev *asd) +{ + struct ipu6_isys_stream *stream = NULL; + struct ipu6_isys *isys = av->isys; + unsigned long flags; + unsigned int i; + u8 vc = av->vc; + + if (!isys) + return NULL; + + spin_lock_irqsave(&isys->streams_lock, flags); + for (i = 0; i < IPU6_ISYS_MAX_STREAMS; i++) { + if (isys->streams_ref_count[i] && isys->streams[i].vc == vc && + isys->streams[i].asd == asd) { + isys->streams_ref_count[i]++; + stream = &isys->streams[i]; + break; + } + } + + if (!stream) { + for (i = 0; i < IPU6_ISYS_MAX_STREAMS; i++) { + if (!isys->streams_ref_count[i]) { + isys->streams_ref_count[i]++; + stream = &isys->streams[i]; + stream->vc = vc; + stream->asd = asd; + break; + } + } + } + spin_unlock_irqrestore(&isys->streams_lock, flags); + + return stream; +} + +struct ipu6_isys_stream * +ipu6_isys_query_stream_by_handle(struct ipu6_isys *isys, u8 stream_handle) +{ + unsigned long flags; + struct ipu6_isys_stream *stream = NULL; + + if (!isys) + return NULL; + + if (stream_handle >= IPU6_ISYS_MAX_STREAMS) { + dev_err(&isys->adev->auxdev.dev, + "stream_handle %d is invalid\n", stream_handle); + return NULL; + } + + spin_lock_irqsave(&isys->streams_lock, flags); + if (isys->streams_ref_count[stream_handle] > 0) { + isys->streams_ref_count[stream_handle]++; + stream = &isys->streams[stream_handle]; + } + spin_unlock_irqrestore(&isys->streams_lock, flags); + + return stream; +} + +struct ipu6_isys_stream * +ipu6_isys_query_stream_by_source(struct ipu6_isys *isys, int source, u8 vc) +{ + struct ipu6_isys_stream *stream = NULL; + unsigned long flags; + unsigned int i; + + if (!isys) + return NULL; + + if (source < 0) { + dev_err(&stream->isys->adev->auxdev.dev, + "query stream with invalid port number\n"); + return NULL; + } + + spin_lock_irqsave(&isys->streams_lock, flags); + for (i = 0; i < IPU6_ISYS_MAX_STREAMS; i++) { + if (!isys->streams_ref_count[i]) + continue; + + if (isys->streams[i].stream_source == source && + isys->streams[i].vc == vc) { + stream = &isys->streams[i]; + isys->streams_ref_count[i]++; + break; + } + } + spin_unlock_irqrestore(&isys->streams_lock, flags); + + return stream; +} + +static u64 get_stream_mask_by_pipeline(struct ipu6_isys_video *__av) +{ + struct media_pipeline *pipeline = + media_entity_pipeline(&__av->vdev.entity); + unsigned int i; + u64 stream_mask = 0; + + for (i = 0; i < NR_OF_CSI2_SRC_PADS; i++) { + struct ipu6_isys_video *av = &__av->csi2->av[i]; + + if (pipeline == media_entity_pipeline(&av->vdev.entity)) + stream_mask |= BIT_ULL(av->source_stream); + } + + return stream_mask; +} + +int ipu6_isys_video_set_streaming(struct ipu6_isys_video *av, int state, + struct ipu6_isys_buffer_list *bl) +{ + struct v4l2_subdev_krouting *routing; + struct ipu6_isys_stream *stream = av->stream; + struct v4l2_subdev_state *subdev_state; + struct device *dev = &av->isys->adev->auxdev.dev; + struct v4l2_subdev *sd; + struct v4l2_subdev *ssd; + struct media_pad *r_pad; + struct media_pad *s_pad; + u32 sink_pad, sink_stream; + u64 r_stream; + u64 stream_mask = 0; + int ret = 0; + + dev_dbg(dev, "set stream: %d\n", state); + + if (WARN(!stream->source_entity, "No source entity for stream\n")) + return -ENODEV; + + ssd = media_entity_to_v4l2_subdev(stream->source_entity); + sd = &stream->asd->sd; + r_pad = media_pad_remote_pad_first(&av->pad); + r_stream = ipu6_isys_get_src_stream_by_src_pad(sd, r_pad->index); + + subdev_state = v4l2_subdev_lock_and_get_active_state(sd); + routing = &subdev_state->routing; + ret = v4l2_subdev_routing_find_opposite_end(routing, r_pad->index, + r_stream, &sink_pad, + &sink_stream); + v4l2_subdev_unlock_state(subdev_state); + if (ret) + return ret; + + s_pad = media_pad_remote_pad_first(&stream->asd->pad[sink_pad]); + + stream_mask = get_stream_mask_by_pipeline(av); + if (!state) { + stop_streaming_firmware(av); + + /* stop external sub-device now. */ + dev_dbg(dev, "disable streams 0x%llx of %s\n", stream_mask, + ssd->name); + ret = v4l2_subdev_disable_streams(ssd, s_pad->index, + stream_mask); + if (ret) { + dev_err(dev, "disable streams of %s failed with %d\n", + ssd->name, ret); + return ret; + } + + /* stop sub-device which connects with video */ + dev_dbg(dev, "stream off entity %s pad:%d\n", sd->name, + r_pad->index); + ret = v4l2_subdev_call(sd, video, s_stream, state); + if (ret) { + dev_err(dev, "stream off %s failed with %d\n", sd->name, + ret); + return ret; + } + close_streaming_firmware(av); + } else { + ret = start_stream_firmware(av, bl); + if (ret) { + dev_err(dev, "start stream of firmware failed\n"); + return ret; + } + + /* start sub-device which connects with video */ + dev_dbg(dev, "stream on %s pad %d\n", sd->name, r_pad->index); + ret = v4l2_subdev_call(sd, video, s_stream, state); + if (ret) { + dev_err(dev, "stream on %s failed with %d\n", sd->name, + ret); + goto out_media_entity_stop_streaming_firmware; + } + + /* start external sub-device now. */ + dev_dbg(dev, "enable streams 0x%llx of %s\n", stream_mask, + ssd->name); + ret = v4l2_subdev_enable_streams(ssd, s_pad->index, + stream_mask); + if (ret) { + dev_err(dev, + "enable streams 0x%llx of %s failed with %d\n", + stream_mask, stream->source_entity->name, ret); + goto out_media_entity_stop_streaming; + } + } + + av->streaming = state; + + return 0; + +out_media_entity_stop_streaming: + v4l2_subdev_disable_streams(sd, r_pad->index, BIT(r_stream)); + +out_media_entity_stop_streaming_firmware: + stop_streaming_firmware(av); + + return ret; +} + +static const struct v4l2_ioctl_ops ipu6_v4l2_ioctl_ops = { + .vidioc_querycap = ipu6_isys_vidioc_querycap, + .vidioc_enum_fmt_vid_cap = ipu6_isys_vidioc_enum_fmt, + .vidioc_enum_fmt_meta_cap = ipu6_isys_vidioc_enum_fmt, + .vidioc_enum_framesizes = ipu6_isys_vidioc_enum_framesizes, + .vidioc_g_fmt_vid_cap = ipu6_isys_vidioc_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = ipu6_isys_vidioc_s_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = ipu6_isys_vidioc_try_fmt_vid_cap, + .vidioc_g_fmt_meta_cap = ipu6_isys_vidioc_g_fmt_meta_cap, + .vidioc_s_fmt_meta_cap = ipu6_isys_vidioc_s_fmt_meta_cap, + .vidioc_try_fmt_meta_cap = ipu6_isys_vidioc_try_fmt_meta_cap, + .vidioc_reqbufs = ipu6_isys_vidioc_reqbufs, + .vidioc_create_bufs = ipu6_isys_vidioc_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_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + .vidioc_expbuf = vb2_ioctl_expbuf, +}; + +static const struct media_entity_operations entity_ops = { + .link_validate = link_validate, +}; + +static const struct v4l2_file_operations isys_fops = { + .owner = THIS_MODULE, + .poll = vb2_fop_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = vb2_fop_mmap, + .open = video_open, + .release = vb2_fop_release, +}; + +int ipu6_isys_fw_open(struct ipu6_isys *isys) +{ + struct ipu6_bus_device *adev = isys->adev; + const struct ipu6_isys_internal_pdata *ipdata = isys->pdata->ipdata; + int ret; + + ret = pm_runtime_resume_and_get(&adev->auxdev.dev); + if (ret < 0) + return ret; + + mutex_lock(&isys->mutex); + + if (isys->ref_count++) + goto unlock; + + ipu6_configure_spc(adev->isp, &ipdata->hw_variant, + IPU6_CPD_PKG_DIR_ISYS_SERVER_IDX, isys->pdata->base, + adev->pkg_dir, adev->pkg_dir_dma_addr); + + /* + * Buffers could have been left to wrong queue at last closure. + * Move them now back to empty buffer queue. + */ + ipu6_cleanup_fw_msg_bufs(isys); + + if (isys->fwcom) { + /* + * Something went wrong in previous shutdown. As we are now + * restarting isys we can safely delete old context. + */ + dev_warn(&adev->auxdev.dev, "clearing old context\n"); + ipu6_fw_isys_cleanup(isys); + } + + ret = ipu6_fw_isys_init(isys, ipdata->num_parallel_streams); + if (ret < 0) + goto out; + +unlock: + mutex_unlock(&isys->mutex); + + return 0; + +out: + isys->ref_count--; + mutex_unlock(&isys->mutex); + pm_runtime_put(&adev->auxdev.dev); + + return ret; +} + +void ipu6_isys_fw_close(struct ipu6_isys *isys) +{ + mutex_lock(&isys->mutex); + + isys->ref_count--; + if (!isys->ref_count) { + ipu6_fw_isys_close(isys); + if (isys->fwcom) { + isys->need_reset = true; + dev_warn(&isys->adev->auxdev.dev, + "failed to close fw isys\n"); + } + } + + mutex_unlock(&isys->mutex); + + if (isys->need_reset) + pm_runtime_put_sync(&isys->adev->auxdev.dev); + else + pm_runtime_put(&isys->adev->auxdev.dev); +} + +int ipu6_isys_setup_video(struct ipu6_isys_video *av, + struct media_entity **source_entity, int *nr_queues) +{ + const struct ipu6_isys_pixelformat *pfmt = + ipu6_isys_get_isys_format(ipu6_isys_get_format(av), 0); + struct device *dev = &av->isys->adev->auxdev.dev; + struct v4l2_mbus_frame_desc_entry entry; + struct v4l2_subdev_route *route = NULL; + struct v4l2_subdev_route *r; + struct v4l2_subdev_state *state; + struct ipu6_isys_subdev *asd; + struct v4l2_subdev *remote_sd; + struct media_pipeline *pipeline; + struct media_pad *source_pad, *remote_pad; + int ret = -EINVAL; + + *nr_queues = 0; + + remote_pad = media_pad_remote_pad_unique(&av->pad); + if (IS_ERR(remote_pad)) { + dev_dbg(dev, "failed to get remote pad\n"); + return PTR_ERR(remote_pad); + } + + remote_sd = media_entity_to_v4l2_subdev(remote_pad->entity); + asd = to_ipu6_isys_subdev(remote_sd); + source_pad = media_pad_remote_pad_first(&remote_pad->entity->pads[0]); + if (!source_pad) { + dev_dbg(dev, "No external source entity\n"); + return -ENODEV; + } + + *source_entity = source_pad->entity; + + /* Find the root */ + state = v4l2_subdev_lock_and_get_active_state(remote_sd); + for_each_active_route(&state->routing, r) { + (*nr_queues)++; + + if (r->source_pad == remote_pad->index) + route = r; + } + + if (!route) { + v4l2_subdev_unlock_state(state); + dev_dbg(dev, "Failed to find route\n"); + return -ENODEV; + } + av->source_stream = route->sink_stream; + v4l2_subdev_unlock_state(state); + + ret = ipu6_isys_csi2_get_remote_desc(av->source_stream, + to_ipu6_isys_csi2(asd), + *source_entity, &entry); + if (ret == -ENOIOCTLCMD) { + av->vc = 0; + av->dt = ipu6_isys_mbus_code_to_mipi(pfmt->code); + } else if (!ret) { + dev_dbg(dev, "Framedesc: stream %u, len %u, vc %u, dt %#x\n", + entry.stream, entry.length, entry.bus.csi2.vc, + entry.bus.csi2.dt); + + av->vc = entry.bus.csi2.vc; + av->dt = entry.bus.csi2.dt; + } else { + dev_err(dev, "failed to get remote frame desc\n"); + return ret; + } + + pipeline = media_entity_pipeline(&av->vdev.entity); + if (!pipeline) + ret = video_device_pipeline_alloc_start(&av->vdev); + else + ret = video_device_pipeline_start(&av->vdev, pipeline); + if (ret < 0) { + dev_dbg(dev, "media pipeline start failed\n"); + return ret; + } + + av->stream = ipu6_isys_get_stream(av, asd); + if (!av->stream) { + video_device_pipeline_stop(&av->vdev); + dev_err(dev, "no available stream for firmware\n"); + return -EINVAL; + } + + return 0; +} + +/* + * Do everything that's needed to initialise things related to video + * buffer queue, video node, and the related media entity. The caller + * is expected to assign isys field and set the name of the video + * device. + */ +int ipu6_isys_video_init(struct ipu6_isys_video *av) +{ + struct v4l2_format format = { + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, + .fmt.pix = { + .width = 1920, + .height = 1080, + }, + }; + struct v4l2_format format_meta = { + .type = V4L2_BUF_TYPE_META_CAPTURE, + .fmt.meta = { + .width = 1920, + .height = 4, + }, + }; + int ret; + + mutex_init(&av->mutex); + av->vdev.device_caps = V4L2_CAP_STREAMING | V4L2_CAP_IO_MC | + V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_META_CAPTURE; + av->vdev.vfl_dir = VFL_DIR_RX; + + ret = ipu6_isys_queue_init(&av->aq); + if (ret) + goto out_free_watermark; + + av->pad.flags = MEDIA_PAD_FL_SINK | MEDIA_PAD_FL_MUST_CONNECT; + ret = media_entity_pads_init(&av->vdev.entity, 1, &av->pad); + if (ret) + goto out_vb2_queue_release; + + av->vdev.entity.ops = &entity_ops; + av->vdev.release = video_device_release_empty; + av->vdev.fops = &isys_fops; + av->vdev.v4l2_dev = &av->isys->v4l2_dev; + if (!av->vdev.ioctl_ops) + av->vdev.ioctl_ops = &ipu6_v4l2_ioctl_ops; + av->vdev.queue = &av->aq.vbq; + av->vdev.lock = &av->mutex; + + __ipu6_isys_vidioc_try_fmt_vid_cap(av, &format); + av->pix_fmt = format.fmt.pix; + __ipu6_isys_vidioc_try_fmt_meta_cap(av, &format_meta); + av->meta_fmt = format_meta.fmt.meta; + + set_bit(V4L2_FL_USES_V4L2_FH, &av->vdev.flags); + video_set_drvdata(&av->vdev, av); + + ret = video_register_device(&av->vdev, VFL_TYPE_VIDEO, -1); + if (ret) + goto out_media_entity_cleanup; + + return ret; + +out_media_entity_cleanup: + vb2_video_unregister_device(&av->vdev); + media_entity_cleanup(&av->vdev.entity); + +out_vb2_queue_release: + vb2_queue_release(&av->aq.vbq); + +out_free_watermark: + mutex_destroy(&av->mutex); + + return ret; +} + +void ipu6_isys_video_cleanup(struct ipu6_isys_video *av) +{ + vb2_video_unregister_device(&av->vdev); + media_entity_cleanup(&av->vdev.entity); + mutex_destroy(&av->mutex); +} + +u32 ipu6_isys_get_format(struct ipu6_isys_video *av) +{ + if (av->aq.vbq.type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + return av->pix_fmt.pixelformat; + + if (av->aq.vbq.type == V4L2_BUF_TYPE_META_CAPTURE) + return av->meta_fmt.dataformat; + + return 0; +} + +u32 ipu6_isys_get_data_size(struct ipu6_isys_video *av) +{ + if (av->aq.vbq.type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + return av->pix_fmt.sizeimage; + + if (av->aq.vbq.type == V4L2_BUF_TYPE_META_CAPTURE) + return av->meta_fmt.buffersize; + + return 0; +} + +u32 ipu6_isys_get_bytes_per_line(struct ipu6_isys_video *av) +{ + if (av->aq.vbq.type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + return av->pix_fmt.bytesperline; + + if (av->aq.vbq.type == V4L2_BUF_TYPE_META_CAPTURE) + return av->meta_fmt.bytesperline; + + return 0; +} + +u32 ipu6_isys_get_frame_width(struct ipu6_isys_video *av) +{ + if (av->aq.vbq.type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + return av->pix_fmt.width; + + if (av->aq.vbq.type == V4L2_BUF_TYPE_META_CAPTURE) + return av->meta_fmt.width; + + return 0; +} + +u32 ipu6_isys_get_frame_height(struct ipu6_isys_video *av) +{ + if (av->aq.vbq.type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + return av->pix_fmt.height; + + if (av->aq.vbq.type == V4L2_BUF_TYPE_META_CAPTURE) + return av->meta_fmt.height; + + return 0; +} |