diff options
Diffstat (limited to 'drivers/media/platform/vimc')
| -rw-r--r-- | drivers/media/platform/vimc/Kconfig | 15 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/Makefile | 10 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-capture.c | 543 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-common.c | 477 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-common.h | 234 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-core.c | 403 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-debayer.c | 603 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-scaler.c | 457 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-sensor.c | 480 |
9 files changed, 0 insertions, 3222 deletions
diff --git a/drivers/media/platform/vimc/Kconfig b/drivers/media/platform/vimc/Kconfig deleted file mode 100644 index 71c9fe7d3370..000000000000 --- a/drivers/media/platform/vimc/Kconfig +++ /dev/null @@ -1,15 +0,0 @@ -config VIDEO_VIMC - tristate "Virtual Media Controller Driver (VIMC)" - depends on VIDEO_DEV && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API - select VIDEOBUF2_VMALLOC - select VIDEO_V4L2_TPG - default n - ---help--- - Skeleton driver for Virtual Media Controller - - This driver can be compared to the vivid driver for emulating - a media node that exposes a complex media topology. The topology - is hard coded for now but is meant to be highly configurable in - the future. - - When in doubt, say N. diff --git a/drivers/media/platform/vimc/Makefile b/drivers/media/platform/vimc/Makefile deleted file mode 100644 index 4b2e3de7856e..000000000000 --- a/drivers/media/platform/vimc/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -vimc-objs := vimc-core.o -vimc_capture-objs := vimc-capture.o -vimc_common-objs := vimc-common.o -vimc_debayer-objs := vimc-debayer.o -vimc_scaler-objs := vimc-scaler.o -vimc_sensor-objs := vimc-sensor.o - -obj-$(CONFIG_VIDEO_VIMC) += vimc.o vimc_capture.o vimc_common.o vimc-debayer.o \ - vimc_scaler.o vimc_sensor.o diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c deleted file mode 100644 index 3f7e9ed56633..000000000000 --- a/drivers/media/platform/vimc/vimc-capture.c +++ /dev/null @@ -1,543 +0,0 @@ -/* - * vimc-capture.c Virtual Media Controller Driver - * - * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/component.h> -#include <linux/module.h> -#include <linux/mod_devicetable.h> -#include <linux/platform_device.h> -#include <media/v4l2-ioctl.h> -#include <media/videobuf2-core.h> -#include <media/videobuf2-vmalloc.h> - -#include "vimc-common.h" - -#define VIMC_CAP_DRV_NAME "vimc-capture" - -struct vimc_cap_device { - struct vimc_ent_device ved; - struct video_device vdev; - struct device *dev; - struct v4l2_pix_format format; - struct vb2_queue queue; - struct list_head buf_list; - /* - * NOTE: in a real driver, a spin lock must be used to access the - * queue because the frames are generated from a hardware interruption - * and the isr is not allowed to sleep. - * Even if it is not necessary a spinlock in the vimc driver, we - * use it here as a code reference - */ - spinlock_t qlock; - struct mutex lock; - u32 sequence; - struct media_pipeline pipe; -}; - -static const struct v4l2_pix_format fmt_default = { - .width = 640, - .height = 480, - .pixelformat = V4L2_PIX_FMT_RGB24, - .field = V4L2_FIELD_NONE, - .colorspace = V4L2_COLORSPACE_DEFAULT, -}; - -struct vimc_cap_buffer { - /* - * struct vb2_v4l2_buffer must be the first element - * the videobuf2 framework will allocate this struct based on - * buf_struct_size and use the first sizeof(struct vb2_buffer) bytes of - * memory as a vb2_buffer - */ - struct vb2_v4l2_buffer vb2; - struct list_head list; -}; - -static int vimc_cap_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - struct vimc_cap_device *vcap = video_drvdata(file); - - strscpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); - strscpy(cap->card, KBUILD_MODNAME, sizeof(cap->card)); - snprintf(cap->bus_info, sizeof(cap->bus_info), - "platform:%s", vcap->vdev.v4l2_dev->name); - - return 0; -} - -static void vimc_cap_get_format(struct vimc_ent_device *ved, - struct v4l2_pix_format *fmt) -{ - struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device, - ved); - - *fmt = vcap->format; -} - -static int vimc_cap_g_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct vimc_cap_device *vcap = video_drvdata(file); - - f->fmt.pix = vcap->format; - - return 0; -} - -static int vimc_cap_try_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct v4l2_pix_format *format = &f->fmt.pix; - const struct vimc_pix_map *vpix; - - format->width = clamp_t(u32, format->width, VIMC_FRAME_MIN_WIDTH, - VIMC_FRAME_MAX_WIDTH) & ~1; - format->height = clamp_t(u32, format->height, VIMC_FRAME_MIN_HEIGHT, - VIMC_FRAME_MAX_HEIGHT) & ~1; - - /* Don't accept a pixelformat that is not on the table */ - vpix = vimc_pix_map_by_pixelformat(format->pixelformat); - if (!vpix) { - format->pixelformat = fmt_default.pixelformat; - vpix = vimc_pix_map_by_pixelformat(format->pixelformat); - } - /* TODO: Add support for custom bytesperline values */ - format->bytesperline = format->width * vpix->bpp; - format->sizeimage = format->bytesperline * format->height; - - if (format->field == V4L2_FIELD_ANY) - format->field = fmt_default.field; - - vimc_colorimetry_clamp(format); - - return 0; -} - -static int vimc_cap_s_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct vimc_cap_device *vcap = video_drvdata(file); - - /* Do not change the format while stream is on */ - if (vb2_is_busy(&vcap->queue)) - return -EBUSY; - - vimc_cap_try_fmt_vid_cap(file, priv, f); - - dev_dbg(vcap->dev, "%s: format update: " - "old:%dx%d (0x%x, %d, %d, %d, %d) " - "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vcap->vdev.name, - /* old */ - vcap->format.width, vcap->format.height, - vcap->format.pixelformat, vcap->format.colorspace, - vcap->format.quantization, vcap->format.xfer_func, - vcap->format.ycbcr_enc, - /* new */ - f->fmt.pix.width, f->fmt.pix.height, - f->fmt.pix.pixelformat, f->fmt.pix.colorspace, - f->fmt.pix.quantization, f->fmt.pix.xfer_func, - f->fmt.pix.ycbcr_enc); - - vcap->format = f->fmt.pix; - - return 0; -} - -static int vimc_cap_enum_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *f) -{ - const struct vimc_pix_map *vpix = vimc_pix_map_by_index(f->index); - - if (!vpix) - return -EINVAL; - - f->pixelformat = vpix->pixelformat; - - return 0; -} - -static int vimc_cap_enum_framesizes(struct file *file, void *fh, - struct v4l2_frmsizeenum *fsize) -{ - const struct vimc_pix_map *vpix; - - if (fsize->index) - return -EINVAL; - - /* Only accept code in the pix map table */ - vpix = vimc_pix_map_by_code(fsize->pixel_format); - if (!vpix) - return -EINVAL; - - fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS; - fsize->stepwise.min_width = VIMC_FRAME_MIN_WIDTH; - fsize->stepwise.max_width = VIMC_FRAME_MAX_WIDTH; - fsize->stepwise.min_height = VIMC_FRAME_MIN_HEIGHT; - fsize->stepwise.max_height = VIMC_FRAME_MAX_HEIGHT; - fsize->stepwise.step_width = 2; - fsize->stepwise.step_height = 2; - - return 0; -} - -static const struct v4l2_file_operations vimc_cap_fops = { - .owner = THIS_MODULE, - .open = v4l2_fh_open, - .release = vb2_fop_release, - .read = vb2_fop_read, - .poll = vb2_fop_poll, - .unlocked_ioctl = video_ioctl2, - .mmap = vb2_fop_mmap, -}; - -static const struct v4l2_ioctl_ops vimc_cap_ioctl_ops = { - .vidioc_querycap = vimc_cap_querycap, - - .vidioc_g_fmt_vid_cap = vimc_cap_g_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = vimc_cap_s_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = vimc_cap_try_fmt_vid_cap, - .vidioc_enum_fmt_vid_cap = vimc_cap_enum_fmt_vid_cap, - .vidioc_enum_framesizes = vimc_cap_enum_framesizes, - - .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, -}; - -static void vimc_cap_return_all_buffers(struct vimc_cap_device *vcap, - enum vb2_buffer_state state) -{ - struct vimc_cap_buffer *vbuf, *node; - - spin_lock(&vcap->qlock); - - list_for_each_entry_safe(vbuf, node, &vcap->buf_list, list) { - list_del(&vbuf->list); - vb2_buffer_done(&vbuf->vb2.vb2_buf, state); - } - - spin_unlock(&vcap->qlock); -} - -static int vimc_cap_start_streaming(struct vb2_queue *vq, unsigned int count) -{ - struct vimc_cap_device *vcap = vb2_get_drv_priv(vq); - struct media_entity *entity = &vcap->vdev.entity; - int ret; - - vcap->sequence = 0; - - /* Start the media pipeline */ - ret = media_pipeline_start(entity, &vcap->pipe); - if (ret) { - vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED); - return ret; - } - - /* Enable streaming from the pipe */ - ret = vimc_pipeline_s_stream(&vcap->vdev.entity, 1); - if (ret) { - media_pipeline_stop(entity); - vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED); - return ret; - } - - return 0; -} - -/* - * Stop the stream engine. Any remaining buffers in the stream queue are - * dequeued and passed on to the vb2 framework marked as STATE_ERROR. - */ -static void vimc_cap_stop_streaming(struct vb2_queue *vq) -{ - struct vimc_cap_device *vcap = vb2_get_drv_priv(vq); - - /* Disable streaming from the pipe */ - vimc_pipeline_s_stream(&vcap->vdev.entity, 0); - - /* Stop the media pipeline */ - media_pipeline_stop(&vcap->vdev.entity); - - /* Release all active buffers */ - vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_ERROR); -} - -static void vimc_cap_buf_queue(struct vb2_buffer *vb2_buf) -{ - struct vimc_cap_device *vcap = vb2_get_drv_priv(vb2_buf->vb2_queue); - struct vimc_cap_buffer *buf = container_of(vb2_buf, - struct vimc_cap_buffer, - vb2.vb2_buf); - - spin_lock(&vcap->qlock); - list_add_tail(&buf->list, &vcap->buf_list); - spin_unlock(&vcap->qlock); -} - -static int vimc_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, - unsigned int *nplanes, unsigned int sizes[], - struct device *alloc_devs[]) -{ - struct vimc_cap_device *vcap = vb2_get_drv_priv(vq); - - if (*nplanes) - return sizes[0] < vcap->format.sizeimage ? -EINVAL : 0; - /* We don't support multiplanes for now */ - *nplanes = 1; - sizes[0] = vcap->format.sizeimage; - - return 0; -} - -static int vimc_cap_buffer_prepare(struct vb2_buffer *vb) -{ - struct vimc_cap_device *vcap = vb2_get_drv_priv(vb->vb2_queue); - unsigned long size = vcap->format.sizeimage; - - if (vb2_plane_size(vb, 0) < size) { - dev_err(vcap->dev, "%s: buffer too small (%lu < %lu)\n", - vcap->vdev.name, vb2_plane_size(vb, 0), size); - return -EINVAL; - } - return 0; -} - -static const struct vb2_ops vimc_cap_qops = { - .start_streaming = vimc_cap_start_streaming, - .stop_streaming = vimc_cap_stop_streaming, - .buf_queue = vimc_cap_buf_queue, - .queue_setup = vimc_cap_queue_setup, - .buf_prepare = vimc_cap_buffer_prepare, - /* - * Since q->lock is set we can use the standard - * vb2_ops_wait_prepare/finish helper functions. - */ - .wait_prepare = vb2_ops_wait_prepare, - .wait_finish = vb2_ops_wait_finish, -}; - -static const struct media_entity_operations vimc_cap_mops = { - .link_validate = vimc_link_validate, -}; - -static void vimc_cap_comp_unbind(struct device *comp, struct device *master, - void *master_data) -{ - struct vimc_ent_device *ved = dev_get_drvdata(comp); - struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device, - ved); - - vb2_queue_release(&vcap->queue); - media_entity_cleanup(ved->ent); - video_unregister_device(&vcap->vdev); - vimc_pads_cleanup(vcap->ved.pads); - kfree(vcap); -} - -static void vimc_cap_process_frame(struct vimc_ent_device *ved, - struct media_pad *sink, const void *frame) -{ - struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device, - ved); - struct vimc_cap_buffer *vimc_buf; - void *vbuf; - - spin_lock(&vcap->qlock); - - /* Get the first entry of the list */ - vimc_buf = list_first_entry_or_null(&vcap->buf_list, - typeof(*vimc_buf), list); - if (!vimc_buf) { - spin_unlock(&vcap->qlock); - return; - } - - /* Remove this entry from the list */ - list_del(&vimc_buf->list); - - spin_unlock(&vcap->qlock); - - /* Fill the buffer */ - vimc_buf->vb2.vb2_buf.timestamp = ktime_get_ns(); - vimc_buf->vb2.sequence = vcap->sequence++; - vimc_buf->vb2.field = vcap->format.field; - - vbuf = vb2_plane_vaddr(&vimc_buf->vb2.vb2_buf, 0); - - memcpy(vbuf, frame, vcap->format.sizeimage); - - /* Set it as ready */ - vb2_set_plane_payload(&vimc_buf->vb2.vb2_buf, 0, - vcap->format.sizeimage); - vb2_buffer_done(&vimc_buf->vb2.vb2_buf, VB2_BUF_STATE_DONE); -} - -static int vimc_cap_comp_bind(struct device *comp, struct device *master, - void *master_data) -{ - struct v4l2_device *v4l2_dev = master_data; - struct vimc_platform_data *pdata = comp->platform_data; - const struct vimc_pix_map *vpix; - struct vimc_cap_device *vcap; - struct video_device *vdev; - struct vb2_queue *q; - int ret; - - /* Allocate the vimc_cap_device struct */ - vcap = kzalloc(sizeof(*vcap), GFP_KERNEL); - if (!vcap) - return -ENOMEM; - - /* Allocate the pads */ - vcap->ved.pads = - vimc_pads_init(1, (const unsigned long[1]) {MEDIA_PAD_FL_SINK}); - if (IS_ERR(vcap->ved.pads)) { - ret = PTR_ERR(vcap->ved.pads); - goto err_free_vcap; - } - - /* Initialize the media entity */ - vcap->vdev.entity.name = pdata->entity_name; - vcap->vdev.entity.function = MEDIA_ENT_F_IO_V4L; - ret = media_entity_pads_init(&vcap->vdev.entity, - 1, vcap->ved.pads); - if (ret) - goto err_clean_pads; - - /* Initialize the lock */ - mutex_init(&vcap->lock); - - /* Initialize the vb2 queue */ - q = &vcap->queue; - q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - q->io_modes = VB2_MMAP | VB2_DMABUF; - q->drv_priv = vcap; - q->buf_struct_size = sizeof(struct vimc_cap_buffer); - q->ops = &vimc_cap_qops; - q->mem_ops = &vb2_vmalloc_memops; - q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; - q->lock = &vcap->lock; - - ret = vb2_queue_init(q); - if (ret) { - dev_err(comp, "%s: vb2 queue init failed (err=%d)\n", - pdata->entity_name, ret); - goto err_clean_m_ent; - } - - /* Initialize buffer list and its lock */ - INIT_LIST_HEAD(&vcap->buf_list); - spin_lock_init(&vcap->qlock); - - /* Set default frame format */ - vcap->format = fmt_default; - vpix = vimc_pix_map_by_pixelformat(vcap->format.pixelformat); - vcap->format.bytesperline = vcap->format.width * vpix->bpp; - vcap->format.sizeimage = vcap->format.bytesperline * - vcap->format.height; - - /* Fill the vimc_ent_device struct */ - vcap->ved.ent = &vcap->vdev.entity; - vcap->ved.process_frame = vimc_cap_process_frame; - vcap->ved.vdev_get_format = vimc_cap_get_format; - dev_set_drvdata(comp, &vcap->ved); - vcap->dev = comp; - - /* Initialize the video_device struct */ - vdev = &vcap->vdev; - vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; - vdev->entity.ops = &vimc_cap_mops; - vdev->release = video_device_release_empty; - vdev->fops = &vimc_cap_fops; - vdev->ioctl_ops = &vimc_cap_ioctl_ops; - vdev->lock = &vcap->lock; - vdev->queue = q; - vdev->v4l2_dev = v4l2_dev; - vdev->vfl_dir = VFL_DIR_RX; - strscpy(vdev->name, pdata->entity_name, sizeof(vdev->name)); - video_set_drvdata(vdev, &vcap->ved); - - /* Register the video_device with the v4l2 and the media framework */ - ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); - if (ret) { - dev_err(comp, "%s: video register failed (err=%d)\n", - vcap->vdev.name, ret); - goto err_release_queue; - } - - return 0; - -err_release_queue: - vb2_queue_release(q); -err_clean_m_ent: - media_entity_cleanup(&vcap->vdev.entity); -err_clean_pads: - vimc_pads_cleanup(vcap->ved.pads); -err_free_vcap: - kfree(vcap); - - return ret; -} - -static const struct component_ops vimc_cap_comp_ops = { - .bind = vimc_cap_comp_bind, - .unbind = vimc_cap_comp_unbind, -}; - -static int vimc_cap_probe(struct platform_device *pdev) -{ - return component_add(&pdev->dev, &vimc_cap_comp_ops); -} - -static int vimc_cap_remove(struct platform_device *pdev) -{ - component_del(&pdev->dev, &vimc_cap_comp_ops); - - return 0; -} - -static const struct platform_device_id vimc_cap_driver_ids[] = { - { - .name = VIMC_CAP_DRV_NAME, - }, - { } -}; - -static struct platform_driver vimc_cap_pdrv = { - .probe = vimc_cap_probe, - .remove = vimc_cap_remove, - .id_table = vimc_cap_driver_ids, - .driver = { - .name = VIMC_CAP_DRV_NAME, - }, -}; - -module_platform_driver(vimc_cap_pdrv); - -MODULE_DEVICE_TABLE(platform, vimc_cap_driver_ids); - -MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC) Capture"); -MODULE_AUTHOR("Helen Mae Koike Fornazier <helen.fornazier@gmail.com>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/vimc/vimc-common.c b/drivers/media/platform/vimc/vimc-common.c deleted file mode 100644 index 867e24dbd6b5..000000000000 --- a/drivers/media/platform/vimc/vimc-common.c +++ /dev/null @@ -1,477 +0,0 @@ -/* - * vimc-common.c Virtual Media Controller Driver - * - * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/init.h> -#include <linux/module.h> - -#include "vimc-common.h" - -/* - * NOTE: non-bayer formats need to come first (necessary for enum_mbus_code - * in the scaler) - */ -static const struct vimc_pix_map vimc_pix_map_list[] = { - /* TODO: add all missing formats */ - - /* RGB formats */ - { - .code = MEDIA_BUS_FMT_BGR888_1X24, - .pixelformat = V4L2_PIX_FMT_BGR24, - .bpp = 3, - .bayer = false, - }, - { - .code = MEDIA_BUS_FMT_RGB888_1X24, - .pixelformat = V4L2_PIX_FMT_RGB24, - .bpp = 3, - .bayer = false, - }, - { - .code = MEDIA_BUS_FMT_ARGB8888_1X32, - .pixelformat = V4L2_PIX_FMT_ARGB32, - .bpp = 4, - .bayer = false, - }, - - /* Bayer formats */ - { - .code = MEDIA_BUS_FMT_SBGGR8_1X8, - .pixelformat = V4L2_PIX_FMT_SBGGR8, - .bpp = 1, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SGBRG8_1X8, - .pixelformat = V4L2_PIX_FMT_SGBRG8, - .bpp = 1, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SGRBG8_1X8, - .pixelformat = V4L2_PIX_FMT_SGRBG8, - .bpp = 1, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SRGGB8_1X8, - .pixelformat = V4L2_PIX_FMT_SRGGB8, - .bpp = 1, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SBGGR10_1X10, - .pixelformat = V4L2_PIX_FMT_SBGGR10, - .bpp = 2, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SGBRG10_1X10, - .pixelformat = V4L2_PIX_FMT_SGBRG10, - .bpp = 2, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SGRBG10_1X10, - .pixelformat = V4L2_PIX_FMT_SGRBG10, - .bpp = 2, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SRGGB10_1X10, - .pixelformat = V4L2_PIX_FMT_SRGGB10, - .bpp = 2, - .bayer = true, - }, - - /* 10bit raw bayer a-law compressed to 8 bits */ - { - .code = MEDIA_BUS_FMT_SBGGR10_ALAW8_1X8, - .pixelformat = V4L2_PIX_FMT_SBGGR10ALAW8, - .bpp = 1, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SGBRG10_ALAW8_1X8, - .pixelformat = V4L2_PIX_FMT_SGBRG10ALAW8, - .bpp = 1, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SGRBG10_ALAW8_1X8, - .pixelformat = V4L2_PIX_FMT_SGRBG10ALAW8, - .bpp = 1, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SRGGB10_ALAW8_1X8, - .pixelformat = V4L2_PIX_FMT_SRGGB10ALAW8, - .bpp = 1, - .bayer = true, - }, - - /* 10bit raw bayer DPCM compressed to 8 bits */ - { - .code = MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8, - .pixelformat = V4L2_PIX_FMT_SBGGR10DPCM8, - .bpp = 1, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8, - .pixelformat = V4L2_PIX_FMT_SGBRG10DPCM8, - .bpp = 1, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8, - .pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8, - .bpp = 1, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8, - .pixelformat = V4L2_PIX_FMT_SRGGB10DPCM8, - .bpp = 1, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SBGGR12_1X12, - .pixelformat = V4L2_PIX_FMT_SBGGR12, - .bpp = 2, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SGBRG12_1X12, - .pixelformat = V4L2_PIX_FMT_SGBRG12, - .bpp = 2, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SGRBG12_1X12, - .pixelformat = V4L2_PIX_FMT_SGRBG12, - .bpp = 2, - .bayer = true, - }, - { - .code = MEDIA_BUS_FMT_SRGGB12_1X12, - .pixelformat = V4L2_PIX_FMT_SRGGB12, - .bpp = 2, - .bayer = true, - }, -}; - -const struct vimc_pix_map *vimc_pix_map_by_index(unsigned int i) -{ - if (i >= ARRAY_SIZE(vimc_pix_map_list)) - return NULL; - - return &vimc_pix_map_list[i]; -} -EXPORT_SYMBOL_GPL(vimc_pix_map_by_index); - -const struct vimc_pix_map *vimc_pix_map_by_code(u32 code) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(vimc_pix_map_list); i++) { - if (vimc_pix_map_list[i].code == code) - return &vimc_pix_map_list[i]; - } - return NULL; -} -EXPORT_SYMBOL_GPL(vimc_pix_map_by_code); - -const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(vimc_pix_map_list); i++) { - if (vimc_pix_map_list[i].pixelformat == pixelformat) - return &vimc_pix_map_list[i]; - } - return NULL; -} -EXPORT_SYMBOL_GPL(vimc_pix_map_by_pixelformat); - -int vimc_propagate_frame(struct media_pad *src, const void *frame) -{ - struct media_link *link; - - if (!(src->flags & MEDIA_PAD_FL_SOURCE)) - return -EINVAL; - - /* Send this frame to all sink pads that are direct linked */ - list_for_each_entry(link, &src->entity->links, list) { - if (link->source == src && - (link->flags & MEDIA_LNK_FL_ENABLED)) { - struct vimc_ent_device *ved = NULL; - struct media_entity *entity = link->sink->entity; - - if (is_media_entity_v4l2_subdev(entity)) { - struct v4l2_subdev *sd = - container_of(entity, struct v4l2_subdev, - entity); - ved = v4l2_get_subdevdata(sd); - } else if (is_media_entity_v4l2_video_device(entity)) { - struct video_device *vdev = - container_of(entity, - struct video_device, - entity); - ved = video_get_drvdata(vdev); - } - if (ved && ved->process_frame) - ved->process_frame(ved, link->sink, frame); - } - } - - return 0; -} -EXPORT_SYMBOL_GPL(vimc_propagate_frame); - -/* Helper function to allocate and initialize pads */ -struct media_pad *vimc_pads_init(u16 num_pads, const unsigned long *pads_flag) -{ - struct media_pad *pads; - unsigned int i; - - /* Allocate memory for the pads */ - pads = kcalloc(num_pads, sizeof(*pads), GFP_KERNEL); - if (!pads) - return ERR_PTR(-ENOMEM); - - /* Initialize the pads */ - for (i = 0; i < num_pads; i++) { - pads[i].index = i; - pads[i].flags = pads_flag[i]; - } - - return pads; -} -EXPORT_SYMBOL_GPL(vimc_pads_init); - -int vimc_pipeline_s_stream(struct media_entity *ent, int enable) -{ - struct v4l2_subdev *sd; - struct media_pad *pad; - unsigned int i; - int ret; - - for (i = 0; i < ent->num_pads; i++) { - if (ent->pads[i].flags & MEDIA_PAD_FL_SOURCE) - continue; - - /* Start the stream in the subdevice direct connected */ - pad = media_entity_remote_pad(&ent->pads[i]); - if (!pad) - continue; - - if (!is_media_entity_v4l2_subdev(pad->entity)) - return -EINVAL; - - sd = media_entity_to_v4l2_subdev(pad->entity); - ret = v4l2_subdev_call(sd, video, s_stream, enable); - if (ret && ret != -ENOIOCTLCMD) - return ret; - } - - return 0; -} -EXPORT_SYMBOL_GPL(vimc_pipeline_s_stream); - -static int vimc_get_mbus_format(struct media_pad *pad, - struct v4l2_subdev_format *fmt) -{ - if (is_media_entity_v4l2_subdev(pad->entity)) { - struct v4l2_subdev *sd = - media_entity_to_v4l2_subdev(pad->entity); - int ret; - - fmt->which = V4L2_SUBDEV_FORMAT_ACTIVE; - fmt->pad = pad->index; - - ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, fmt); - if (ret) - return ret; - - } else if (is_media_entity_v4l2_video_device(pad->entity)) { - struct video_device *vdev = container_of(pad->entity, - struct video_device, - entity); - struct vimc_ent_device *ved = video_get_drvdata(vdev); - const struct vimc_pix_map *vpix; - struct v4l2_pix_format vdev_fmt; - - if (!ved->vdev_get_format) - return -ENOIOCTLCMD; - - ved->vdev_get_format(ved, &vdev_fmt); - vpix = vimc_pix_map_by_pixelformat(vdev_fmt.pixelformat); - v4l2_fill_mbus_format(&fmt->format, &vdev_fmt, vpix->code); - } else { - return -EINVAL; - } - - return 0; -} - -int vimc_link_validate(struct media_link *link) -{ - struct v4l2_subdev_format source_fmt, sink_fmt; - int ret; - - ret = vimc_get_mbus_format(link->source, &source_fmt); - if (ret) - return ret; - - ret = vimc_get_mbus_format(link->sink, &sink_fmt); - if (ret) - return ret; - - pr_info("vimc link validate: " - "%s:src:%dx%d (0x%x, %d, %d, %d, %d) " - "%s:snk:%dx%d (0x%x, %d, %d, %d, %d)\n", - /* src */ - link->source->entity->name, - source_fmt.format.width, source_fmt.format.height, - source_fmt.format.code, source_fmt.format.colorspace, - source_fmt.format.quantization, source_fmt.format.xfer_func, - source_fmt.format.ycbcr_enc, - /* sink */ - link->sink->entity->name, - sink_fmt.format.width, sink_fmt.format.height, - sink_fmt.format.code, sink_fmt.format.colorspace, - sink_fmt.format.quantization, sink_fmt.format.xfer_func, - sink_fmt.format.ycbcr_enc); - - /* The width, height and code must match. */ - if (source_fmt.format.width != sink_fmt.format.width - || source_fmt.format.height != sink_fmt.format.height - || source_fmt.format.code != sink_fmt.format.code) - return -EPIPE; - - /* - * The field order must match, or the sink field order must be NONE - * to support interlaced hardware connected to bridges that support - * progressive formats only. - */ - if (source_fmt.format.field != sink_fmt.format.field && - sink_fmt.format.field != V4L2_FIELD_NONE) - return -EPIPE; - - /* - * If colorspace is DEFAULT, then assume all the colorimetry is also - * DEFAULT, return 0 to skip comparing the other colorimetry parameters - */ - if (source_fmt.format.colorspace == V4L2_COLORSPACE_DEFAULT - || sink_fmt.format.colorspace == V4L2_COLORSPACE_DEFAULT) - return 0; - - /* Colorspace must match. */ - if (source_fmt.format.colorspace != sink_fmt.format.colorspace) - return -EPIPE; - - /* Colorimetry must match if they are not set to DEFAULT */ - if (source_fmt.format.ycbcr_enc != V4L2_YCBCR_ENC_DEFAULT - && sink_fmt.format.ycbcr_enc != V4L2_YCBCR_ENC_DEFAULT - && source_fmt.format.ycbcr_enc != sink_fmt.format.ycbcr_enc) - return -EPIPE; - - if (source_fmt.format.quantization != V4L2_QUANTIZATION_DEFAULT - && sink_fmt.format.quantization != V4L2_QUANTIZATION_DEFAULT - && source_fmt.format.quantization != sink_fmt.format.quantization) - return -EPIPE; - - if (source_fmt.format.xfer_func != V4L2_XFER_FUNC_DEFAULT - && sink_fmt.format.xfer_func != V4L2_XFER_FUNC_DEFAULT - && source_fmt.format.xfer_func != sink_fmt.format.xfer_func) - return -EPIPE; - - return 0; -} -EXPORT_SYMBOL_GPL(vimc_link_validate); - -static const struct media_entity_operations vimc_ent_sd_mops = { - .link_validate = vimc_link_validate, -}; - -int vimc_ent_sd_register(struct vimc_ent_device *ved, - struct v4l2_subdev *sd, - struct v4l2_device *v4l2_dev, - const char *const name, - u32 function, - u16 num_pads, - const unsigned long *pads_flag, - const struct v4l2_subdev_ops *sd_ops) -{ - int ret; - - /* Allocate the pads */ - ved->pads = vimc_pads_init(num_pads, pads_flag); - if (IS_ERR(ved->pads)) - return PTR_ERR(ved->pads); - - /* Fill the vimc_ent_device struct */ - ved->ent = &sd->entity; - - /* Initialize the subdev */ - v4l2_subdev_init(sd, sd_ops); - sd->entity.function = function; - sd->entity.ops = &vimc_ent_sd_mops; - sd->owner = THIS_MODULE; - strscpy(sd->name, name, sizeof(sd->name)); - v4l2_set_subdevdata(sd, ved); - - /* Expose this subdev to user space */ - sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - if (sd->ctrl_handler) - sd->flags |= V4L2_SUBDEV_FL_HAS_EVENTS; - - /* Initialize the media entity */ - ret = media_entity_pads_init(&sd->entity, num_pads, ved->pads); - if (ret) - goto err_clean_pads; - - /* Register the subdev with the v4l2 and the media framework */ - ret = v4l2_device_register_subdev(v4l2_dev, sd); - if (ret) { - dev_err(v4l2_dev->dev, - "%s: subdev register failed (err=%d)\n", - name, ret); - goto err_clean_m_ent; - } - - return 0; - -err_clean_m_ent: - media_entity_cleanup(&sd->entity); -err_clean_pads: - vimc_pads_cleanup(ved->pads); - return ret; -} -EXPORT_SYMBOL_GPL(vimc_ent_sd_register); - -void vimc_ent_sd_unregister(struct vimc_ent_device *ved, struct v4l2_subdev *sd) -{ - v4l2_device_unregister_subdev(sd); - media_entity_cleanup(ved->ent); - vimc_pads_cleanup(ved->pads); -} -EXPORT_SYMBOL_GPL(vimc_ent_sd_unregister); - -MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC) Common"); -MODULE_AUTHOR("Helen Koike <helen.fornazier@gmail.com>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h deleted file mode 100644 index 2e9981b18166..000000000000 --- a/drivers/media/platform/vimc/vimc-common.h +++ /dev/null @@ -1,234 +0,0 @@ -/* - * vimc-common.h Virtual Media Controller Driver - * - * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#ifndef _VIMC_COMMON_H_ -#define _VIMC_COMMON_H_ - -#include <linux/slab.h> -#include <media/media-device.h> -#include <media/v4l2-device.h> - -/* VIMC-specific controls */ -#define VIMC_CID_VIMC_BASE (0x00f00000 | 0xf000) -#define VIMC_CID_VIMC_CLASS (0x00f00000 | 1) -#define VIMC_CID_TEST_PATTERN (VIMC_CID_VIMC_BASE + 0) - -#define VIMC_FRAME_MAX_WIDTH 4096 -#define VIMC_FRAME_MAX_HEIGHT 2160 -#define VIMC_FRAME_MIN_WIDTH 16 -#define VIMC_FRAME_MIN_HEIGHT 16 - -#define VIMC_FRAME_INDEX(lin, col, width, bpp) ((lin * width + col) * bpp) - -/** - * struct vimc_colorimetry_clamp - Adjust colorimetry parameters - * - * @fmt: the pointer to struct v4l2_pix_format or - * struct v4l2_mbus_framefmt - * - * Entities must check if colorimetry given by the userspace is valid, if not - * then set them as DEFAULT - */ -#define vimc_colorimetry_clamp(fmt) \ -do { \ - if ((fmt)->colorspace == V4L2_COLORSPACE_DEFAULT \ - || (fmt)->colorspace > V4L2_COLORSPACE_DCI_P3) { \ - (fmt)->colorspace = V4L2_COLORSPACE_DEFAULT; \ - (fmt)->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; \ - (fmt)->quantization = V4L2_QUANTIZATION_DEFAULT; \ - (fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT; \ - } \ - if ((fmt)->ycbcr_enc > V4L2_YCBCR_ENC_SMPTE240M) \ - (fmt)->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; \ - if ((fmt)->quantization > V4L2_QUANTIZATION_LIM_RANGE) \ - (fmt)->quantization = V4L2_QUANTIZATION_DEFAULT; \ - if ((fmt)->xfer_func > V4L2_XFER_FUNC_SMPTE2084) \ - (fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT; \ -} while (0) - -/** - * struct vimc_platform_data - platform data to components - * - * @entity_name: The name of the entity to be created - * - * Board setup code will often provide additional information using the device's - * platform_data field to hold additional information. - * When injecting a new platform_device in the component system the core needs - * to provide to the corresponding submodules the name of the entity that should - * be used when registering the subdevice in the Media Controller system. - */ -struct vimc_platform_data { - char entity_name[32]; -}; - -/** - * struct vimc_pix_map - maps media bus code with v4l2 pixel format - * - * @code: media bus format code defined by MEDIA_BUS_FMT_* macros - * @bbp: number of bytes each pixel occupies - * @pixelformat: pixel format devined by V4L2_PIX_FMT_* macros - * - * Struct which matches the MEDIA_BUS_FMT_* codes with the corresponding - * V4L2_PIX_FMT_* fourcc pixelformat and its bytes per pixel (bpp) - */ -struct vimc_pix_map { - unsigned int code; - unsigned int bpp; - u32 pixelformat; - bool bayer; -}; - -/** - * struct vimc_ent_device - core struct that represents a node in the topology - * - * @ent: the pointer to struct media_entity for the node - * @pads: the list of pads of the node - * @process_frame: callback send a frame to that node - * @vdev_get_format: callback that returns the current format a pad, used - * only when is_media_entity_v4l2_video_device(ent) returns - * true - * - * Each node of the topology must create a vimc_ent_device struct. Depending on - * the node it will be of an instance of v4l2_subdev or video_device struct - * where both contains a struct media_entity. - * Those structures should embedded the vimc_ent_device struct through - * v4l2_set_subdevdata() and video_set_drvdata() respectivaly, allowing the - * vimc_ent_device struct to be retrieved from the corresponding struct - * media_entity - */ -struct vimc_ent_device { - struct media_entity *ent; - struct media_pad *pads; - void (*process_frame)(struct vimc_ent_device *ved, - struct media_pad *sink, const void *frame); - void (*vdev_get_format)(struct vimc_ent_device *ved, - struct v4l2_pix_format *fmt); -}; - -/** - * vimc_propagate_frame - propagate a frame through the topology - * - * @src: the source pad where the frame is being originated - * @frame: the frame to be propagated - * - * This function will call the process_frame callback from the vimc_ent_device - * struct of the nodes directly connected to the @src pad - */ -int vimc_propagate_frame(struct media_pad *src, const void *frame); - -/** - * vimc_pads_init - initialize pads - * - * @num_pads: number of pads to initialize - * @pads_flags: flags to use in each pad - * - * Helper functions to allocate/initialize pads - */ -struct media_pad *vimc_pads_init(u16 num_pads, - const unsigned long *pads_flag); - -/** - * vimc_pads_cleanup - free pads - * - * @pads: pointer to the pads - * - * Helper function to free the pads initialized with vimc_pads_init - */ -static inline void vimc_pads_cleanup(struct media_pad *pads) -{ - kfree(pads); -} - -/** - * vimc_pipeline_s_stream - start stream through the pipeline - * - * @ent: the pointer to struct media_entity for the node - * @enable: 1 to start the stream and 0 to stop - * - * Helper function to call the s_stream of the subdevices connected - * in all the sink pads of the entity - */ -int vimc_pipeline_s_stream(struct media_entity *ent, int enable); - -/** - * vimc_pix_map_by_index - get vimc_pix_map struct by its index - * - * @i: index of the vimc_pix_map struct in vimc_pix_map_list - */ -const struct vimc_pix_map *vimc_pix_map_by_index(unsigned int i); - -/** - * vimc_pix_map_by_code - get vimc_pix_map struct by media bus code - * - * @code: media bus format code defined by MEDIA_BUS_FMT_* macros - */ -const struct vimc_pix_map *vimc_pix_map_by_code(u32 code); - -/** - * vimc_pix_map_by_pixelformat - get vimc_pix_map struct by v4l2 pixel format - * - * @pixelformat: pixel format devined by V4L2_PIX_FMT_* macros - */ -const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat); - -/** - * vimc_ent_sd_register - initialize and register a subdev node - * - * @ved: the vimc_ent_device struct to be initialize - * @sd: the v4l2_subdev struct to be initialize and registered - * @v4l2_dev: the v4l2 device to register the v4l2_subdev - * @name: name of the sub-device. Please notice that the name must be - * unique. - * @function: media entity function defined by MEDIA_ENT_F_* macros - * @num_pads: number of pads to initialize - * @pads_flag: flags to use in each pad - * @sd_ops: pointer to &struct v4l2_subdev_ops. - * - * Helper function initialize and register the struct vimc_ent_device and struct - * v4l2_subdev which represents a subdev node in the topology - */ -int vimc_ent_sd_register(struct vimc_ent_device *ved, - struct v4l2_subdev *sd, - struct v4l2_device *v4l2_dev, - const char *const name, - u32 function, - u16 num_pads, - const unsigned long *pads_flag, - const struct v4l2_subdev_ops *sd_ops); - -/** - * vimc_ent_sd_unregister - cleanup and unregister a subdev node - * - * @ved: the vimc_ent_device struct to be cleaned up - * @sd: the v4l2_subdev struct to be unregistered - * - * Helper function cleanup and unregister the struct vimc_ent_device and struct - * v4l2_subdev which represents a subdev node in the topology - */ -void vimc_ent_sd_unregister(struct vimc_ent_device *ved, - struct v4l2_subdev *sd); - -/** - * vimc_link_validate - validates a media link - * - * @link: pointer to &struct media_link - * - * This function calls validates if a media link is valid for streaming. - */ -int vimc_link_validate(struct media_link *link); - -#endif diff --git a/drivers/media/platform/vimc/vimc-core.c b/drivers/media/platform/vimc/vimc-core.c deleted file mode 100644 index ce809d2e3d53..000000000000 --- a/drivers/media/platform/vimc/vimc-core.c +++ /dev/null @@ -1,403 +0,0 @@ -/* - * vimc-core.c Virtual Media Controller Driver - * - * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/component.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <media/media-device.h> -#include <media/v4l2-device.h> - -#include "vimc-common.h" - -#define VIMC_PDEV_NAME "vimc" -#define VIMC_MDEV_MODEL_NAME "VIMC MDEV" - -#define VIMC_ENT_LINK(src, srcpad, sink, sinkpad, link_flags) { \ - .src_ent = src, \ - .src_pad = srcpad, \ - .sink_ent = sink, \ - .sink_pad = sinkpad, \ - .flags = link_flags, \ -} - -struct vimc_device { - /* The platform device */ - struct platform_device pdev; - - /* The pipeline configuration */ - const struct vimc_pipeline_config *pipe_cfg; - - /* The Associated media_device parent */ - struct media_device mdev; - - /* Internal v4l2 parent device*/ - struct v4l2_device v4l2_dev; - - /* Subdevices */ - struct platform_device **subdevs; -}; - -/* Structure which describes individual configuration for each entity */ -struct vimc_ent_config { - const char *name; - const char *drv; -}; - -/* Structure which describes links between entities */ -struct vimc_ent_link { - unsigned int src_ent; - u16 src_pad; - unsigned int sink_ent; - u16 sink_pad; - u32 flags; -}; - -/* Structure which describes the whole topology */ -struct vimc_pipeline_config { - const struct vimc_ent_config *ents; - size_t num_ents; - const struct vimc_ent_link *links; - size_t num_links; -}; - -/* -------------------------------------------------------------------------- - * Topology Configuration - */ - -static const struct vimc_ent_config ent_config[] = { - { - .name = "Sensor A", - .drv = "vimc-sensor", - }, - { - .name = "Sensor B", - .drv = "vimc-sensor", - }, - { - .name = "Debayer A", - .drv = "vimc-debayer", - }, - { - .name = "Debayer B", - .drv = "vimc-debayer", - }, - { - .name = "Raw Capture 0", - .drv = "vimc-capture", - }, - { - .name = "Raw Capture 1", - .drv = "vimc-capture", - }, - { - .name = "RGB/YUV Input", - /* TODO: change this to vimc-input when it is implemented */ - .drv = "vimc-sensor", - }, - { - .name = "Scaler", - .drv = "vimc-scaler", - }, - { - .name = "RGB/YUV Capture", - .drv = "vimc-capture", - }, -}; - -static const struct vimc_ent_link ent_links[] = { - /* Link: Sensor A (Pad 0)->(Pad 0) Debayer A */ - VIMC_ENT_LINK(0, 0, 2, 0, MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE), - /* Link: Sensor A (Pad 0)->(Pad 0) Raw Capture 0 */ - VIMC_ENT_LINK(0, 0, 4, 0, MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE), - /* Link: Sensor B (Pad 0)->(Pad 0) Debayer B */ - VIMC_ENT_LINK(1, 0, 3, 0, MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE), - /* Link: Sensor B (Pad 0)->(Pad 0) Raw Capture 1 */ - VIMC_ENT_LINK(1, 0, 5, 0, MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE), - /* Link: Debayer A (Pad 1)->(Pad 0) Scaler */ - VIMC_ENT_LINK(2, 1, 7, 0, MEDIA_LNK_FL_ENABLED), - /* Link: Debayer B (Pad 1)->(Pad 0) Scaler */ - VIMC_ENT_LINK(3, 1, 7, 0, 0), - /* Link: RGB/YUV Input (Pad 0)->(Pad 0) Scaler */ - VIMC_ENT_LINK(6, 0, 7, 0, 0), - /* Link: Scaler (Pad 1)->(Pad 0) RGB/YUV Capture */ - VIMC_ENT_LINK(7, 1, 8, 0, MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE), -}; - -static const struct vimc_pipeline_config pipe_cfg = { - .ents = ent_config, - .num_ents = ARRAY_SIZE(ent_config), - .links = ent_links, - .num_links = ARRAY_SIZE(ent_links) -}; - -/* -------------------------------------------------------------------------- */ - -static int vimc_create_links(struct vimc_device *vimc) -{ - unsigned int i; - int ret; - - /* Initialize the links between entities */ - for (i = 0; i < vimc->pipe_cfg->num_links; i++) { - const struct vimc_ent_link *link = &vimc->pipe_cfg->links[i]; - /* - * TODO: Check another way of retrieving ved struct without - * relying on platform_get_drvdata - */ - struct vimc_ent_device *ved_src = - platform_get_drvdata(vimc->subdevs[link->src_ent]); - struct vimc_ent_device *ved_sink = - platform_get_drvdata(vimc->subdevs[link->sink_ent]); - - ret = media_create_pad_link(ved_src->ent, link->src_pad, - ved_sink->ent, link->sink_pad, - link->flags); - if (ret) - return ret; - } - - return 0; -} - -static int vimc_comp_bind(struct device *master) -{ - struct vimc_device *vimc = container_of(to_platform_device(master), - struct vimc_device, pdev); - int ret; - - dev_dbg(master, "bind"); - - /* Register the v4l2 struct */ - ret = v4l2_device_register(vimc->mdev.dev, &vimc->v4l2_dev); - if (ret) { - dev_err(vimc->mdev.dev, - "v4l2 device register failed (err=%d)\n", ret); - return ret; - } - - /* Bind subdevices */ - ret = component_bind_all(master, &vimc->v4l2_dev); - if (ret) - goto err_v4l2_unregister; - - /* Initialize links */ - ret = vimc_create_links(vimc); - if (ret) - goto err_comp_unbind_all; - - /* Register the media device */ - ret = media_device_register(&vimc->mdev); - if (ret) { - dev_err(vimc->mdev.dev, - "media device register failed (err=%d)\n", ret); - goto err_comp_unbind_all; - } - - /* Expose all subdev's nodes*/ - ret = v4l2_device_register_subdev_nodes(&vimc->v4l2_dev); - if (ret) { - dev_err(vimc->mdev.dev, - "vimc subdev nodes registration failed (err=%d)\n", - ret); - goto err_mdev_unregister; - } - - return 0; - -err_mdev_unregister: - media_device_unregister(&vimc->mdev); -err_comp_unbind_all: - component_unbind_all(master, NULL); -err_v4l2_unregister: - v4l2_device_unregister(&vimc->v4l2_dev); - - return ret; -} - -static void vimc_comp_unbind(struct device *master) -{ - struct vimc_device *vimc = container_of(to_platform_device(master), - struct vimc_device, pdev); - - dev_dbg(master, "unbind"); - - media_device_unregister(&vimc->mdev); - component_unbind_all(master, NULL); - v4l2_device_unregister(&vimc->v4l2_dev); -} - -static int vimc_comp_compare(struct device *comp, void *data) -{ - const struct platform_device *pdev = to_platform_device(comp); - const char *name = data; - - return !strcmp(pdev->dev.platform_data, name); -} - -static struct component_match *vimc_add_subdevs(struct vimc_device *vimc) -{ - struct component_match *match = NULL; - struct vimc_platform_data pdata; - int i; - - for (i = 0; i < vimc->pipe_cfg->num_ents; i++) { - dev_dbg(&vimc->pdev.dev, "new pdev for %s\n", - vimc->pipe_cfg->ents[i].drv); - - strscpy(pdata.entity_name, vimc->pipe_cfg->ents[i].name, - sizeof(pdata.entity_name)); - - vimc->subdevs[i] = platform_device_register_data(&vimc->pdev.dev, - vimc->pipe_cfg->ents[i].drv, - PLATFORM_DEVID_AUTO, - &pdata, - sizeof(pdata)); - if (IS_ERR(vimc->subdevs[i])) { - match = ERR_CAST(vimc->subdevs[i]); - while (--i >= 0) - platform_device_unregister(vimc->subdevs[i]); - - return match; - } - - component_match_add(&vimc->pdev.dev, &match, vimc_comp_compare, - (void *)vimc->pipe_cfg->ents[i].name); - } - - return match; -} - -static void vimc_rm_subdevs(struct vimc_device *vimc) -{ - unsigned int i; - - for (i = 0; i < vimc->pipe_cfg->num_ents; i++) - platform_device_unregister(vimc->subdevs[i]); -} - -static const struct component_master_ops vimc_comp_ops = { - .bind = vimc_comp_bind, - .unbind = vimc_comp_unbind, -}; - -static int vimc_probe(struct platform_device *pdev) -{ - struct vimc_device *vimc = container_of(pdev, struct vimc_device, pdev); - struct component_match *match = NULL; - int ret; - - dev_dbg(&pdev->dev, "probe"); - - /* Create platform_device for each entity in the topology*/ - vimc->subdevs = devm_kcalloc(&vimc->pdev.dev, vimc->pipe_cfg->num_ents, - sizeof(*vimc->subdevs), GFP_KERNEL); - if (!vimc->subdevs) - return -ENOMEM; - - match = vimc_add_subdevs(vimc); - if (IS_ERR(match)) - return PTR_ERR(match); - - /* Link the media device within the v4l2_device */ - vimc->v4l2_dev.mdev = &vimc->mdev; - - /* Initialize media device */ - strscpy(vimc->mdev.model, VIMC_MDEV_MODEL_NAME, - sizeof(vimc->mdev.model)); - vimc->mdev.dev = &pdev->dev; - media_device_init(&vimc->mdev); - - /* Add self to the component system */ - ret = component_master_add_with_match(&pdev->dev, &vimc_comp_ops, - match); - if (ret) { - media_device_cleanup(&vimc->mdev); - vimc_rm_subdevs(vimc); - return ret; - } - - return 0; -} - -static int vimc_remove(struct platform_device *pdev) -{ - struct vimc_device *vimc = container_of(pdev, struct vimc_device, pdev); - - dev_dbg(&pdev->dev, "remove"); - - component_master_del(&pdev->dev, &vimc_comp_ops); - vimc_rm_subdevs(vimc); - - return 0; -} - -static void vimc_dev_release(struct device *dev) -{ -} - -static struct vimc_device vimc_dev = { - .pipe_cfg = &pipe_cfg, - .pdev = { - .name = VIMC_PDEV_NAME, - .dev.release = vimc_dev_release, - } -}; - -static struct platform_driver vimc_pdrv = { - .probe = vimc_probe, - .remove = vimc_remove, - .driver = { - .name = VIMC_PDEV_NAME, - }, -}; - -static int __init vimc_init(void) -{ - int ret; - - ret = platform_device_register(&vimc_dev.pdev); - if (ret) { - dev_err(&vimc_dev.pdev.dev, - "platform device registration failed (err=%d)\n", ret); - return ret; - } - - ret = platform_driver_register(&vimc_pdrv); - if (ret) { - dev_err(&vimc_dev.pdev.dev, - "platform driver registration failed (err=%d)\n", ret); - platform_driver_unregister(&vimc_pdrv); - return ret; - } - - return 0; -} - -static void __exit vimc_exit(void) -{ - platform_driver_unregister(&vimc_pdrv); - - platform_device_unregister(&vimc_dev.pdev); -} - -module_init(vimc_init); -module_exit(vimc_exit); - -MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC)"); -MODULE_AUTHOR("Helen Fornazier <helen.fornazier@gmail.com>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/vimc/vimc-debayer.c b/drivers/media/platform/vimc/vimc-debayer.c deleted file mode 100644 index 77887f66f323..000000000000 --- a/drivers/media/platform/vimc/vimc-debayer.c +++ /dev/null @@ -1,603 +0,0 @@ -/* - * vimc-debayer.c Virtual Media Controller Driver - * - * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/component.h> -#include <linux/module.h> -#include <linux/mod_devicetable.h> -#include <linux/platform_device.h> -#include <linux/vmalloc.h> -#include <linux/v4l2-mediabus.h> -#include <media/v4l2-subdev.h> - -#include "vimc-common.h" - -#define VIMC_DEB_DRV_NAME "vimc-debayer" - -static unsigned int deb_mean_win_size = 3; -module_param(deb_mean_win_size, uint, 0000); -MODULE_PARM_DESC(deb_mean_win_size, " the window size to calculate the mean.\n" - "NOTE: the window size need to be an odd number, as the main pixel " - "stays in the center of the window, otherwise the next odd number " - "is considered"); - -#define IS_SINK(pad) (!pad) -#define IS_SRC(pad) (pad) - -enum vimc_deb_rgb_colors { - VIMC_DEB_RED = 0, - VIMC_DEB_GREEN = 1, - VIMC_DEB_BLUE = 2, -}; - -struct vimc_deb_pix_map { - u32 code; - enum vimc_deb_rgb_colors order[2][2]; -}; - -struct vimc_deb_device { - struct vimc_ent_device ved; - struct v4l2_subdev sd; - struct device *dev; - /* The active format */ - struct v4l2_mbus_framefmt sink_fmt; - u32 src_code; - void (*set_rgb_src)(struct vimc_deb_device *vdeb, unsigned int lin, - unsigned int col, unsigned int rgb[3]); - /* Values calculated when the stream starts */ - u8 *src_frame; - const struct vimc_deb_pix_map *sink_pix_map; - unsigned int sink_bpp; -}; - -static const struct v4l2_mbus_framefmt sink_fmt_default = { - .width = 640, - .height = 480, - .code = MEDIA_BUS_FMT_RGB888_1X24, - .field = V4L2_FIELD_NONE, - .colorspace = V4L2_COLORSPACE_DEFAULT, -}; - -static const struct vimc_deb_pix_map vimc_deb_pix_map_list[] = { - { - .code = MEDIA_BUS_FMT_SBGGR8_1X8, - .order = { { VIMC_DEB_BLUE, VIMC_DEB_GREEN }, - { VIMC_DEB_GREEN, VIMC_DEB_RED } } - }, - { - .code = MEDIA_BUS_FMT_SGBRG8_1X8, - .order = { { VIMC_DEB_GREEN, VIMC_DEB_BLUE }, - { VIMC_DEB_RED, VIMC_DEB_GREEN } } - }, - { - .code = MEDIA_BUS_FMT_SGRBG8_1X8, - .order = { { VIMC_DEB_GREEN, VIMC_DEB_RED }, - { VIMC_DEB_BLUE, VIMC_DEB_GREEN } } - }, - { - .code = MEDIA_BUS_FMT_SRGGB8_1X8, - .order = { { VIMC_DEB_RED, VIMC_DEB_GREEN }, - { VIMC_DEB_GREEN, VIMC_DEB_BLUE } } - }, - { - .code = MEDIA_BUS_FMT_SBGGR10_1X10, - .order = { { VIMC_DEB_BLUE, VIMC_DEB_GREEN }, - { VIMC_DEB_GREEN, VIMC_DEB_RED } } - }, - { - .code = MEDIA_BUS_FMT_SGBRG10_1X10, - .order = { { VIMC_DEB_GREEN, VIMC_DEB_BLUE }, - { VIMC_DEB_RED, VIMC_DEB_GREEN } } - }, - { - .code = MEDIA_BUS_FMT_SGRBG10_1X10, - .order = { { VIMC_DEB_GREEN, VIMC_DEB_RED }, - { VIMC_DEB_BLUE, VIMC_DEB_GREEN } } - }, - { - .code = MEDIA_BUS_FMT_SRGGB10_1X10, - .order = { { VIMC_DEB_RED, VIMC_DEB_GREEN }, - { VIMC_DEB_GREEN, VIMC_DEB_BLUE } } - }, - { - .code = MEDIA_BUS_FMT_SBGGR12_1X12, - .order = { { VIMC_DEB_BLUE, VIMC_DEB_GREEN }, - { VIMC_DEB_GREEN, VIMC_DEB_RED } } - }, - { - .code = MEDIA_BUS_FMT_SGBRG12_1X12, - .order = { { VIMC_DEB_GREEN, VIMC_DEB_BLUE }, - { VIMC_DEB_RED, VIMC_DEB_GREEN } } - }, - { - .code = MEDIA_BUS_FMT_SGRBG12_1X12, - .order = { { VIMC_DEB_GREEN, VIMC_DEB_RED }, - { VIMC_DEB_BLUE, VIMC_DEB_GREEN } } - }, - { - .code = MEDIA_BUS_FMT_SRGGB12_1X12, - .order = { { VIMC_DEB_RED, VIMC_DEB_GREEN }, - { VIMC_DEB_GREEN, VIMC_DEB_BLUE } } - }, -}; - -static const struct vimc_deb_pix_map *vimc_deb_pix_map_by_code(u32 code) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(vimc_deb_pix_map_list); i++) - if (vimc_deb_pix_map_list[i].code == code) - return &vimc_deb_pix_map_list[i]; - - return NULL; -} - -static int vimc_deb_init_cfg(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg) -{ - struct vimc_deb_device *vdeb = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *mf; - unsigned int i; - - mf = v4l2_subdev_get_try_format(sd, cfg, 0); - *mf = sink_fmt_default; - - for (i = 1; i < sd->entity.num_pads; i++) { - mf = v4l2_subdev_get_try_format(sd, cfg, i); - *mf = sink_fmt_default; - mf->code = vdeb->src_code; - } - - return 0; -} - -static int vimc_deb_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_mbus_code_enum *code) -{ - /* We only support one format for source pads */ - if (IS_SRC(code->pad)) { - struct vimc_deb_device *vdeb = v4l2_get_subdevdata(sd); - - if (code->index) - return -EINVAL; - - code->code = vdeb->src_code; - } else { - if (code->index >= ARRAY_SIZE(vimc_deb_pix_map_list)) - return -EINVAL; - - code->code = vimc_deb_pix_map_list[code->index].code; - } - - return 0; -} - -static int vimc_deb_enum_frame_size(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_frame_size_enum *fse) -{ - struct vimc_deb_device *vdeb = v4l2_get_subdevdata(sd); - - if (fse->index) - return -EINVAL; - - if (IS_SINK(fse->pad)) { - const struct vimc_deb_pix_map *vpix = - vimc_deb_pix_map_by_code(fse->code); - - if (!vpix) - return -EINVAL; - } else if (fse->code != vdeb->src_code) { - return -EINVAL; - } - - fse->min_width = VIMC_FRAME_MIN_WIDTH; - fse->max_width = VIMC_FRAME_MAX_WIDTH; - fse->min_height = VIMC_FRAME_MIN_HEIGHT; - fse->max_height = VIMC_FRAME_MAX_HEIGHT; - - return 0; -} - -static int vimc_deb_get_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *fmt) -{ - struct vimc_deb_device *vdeb = v4l2_get_subdevdata(sd); - - /* Get the current sink format */ - fmt->format = fmt->which == V4L2_SUBDEV_FORMAT_TRY ? - *v4l2_subdev_get_try_format(sd, cfg, 0) : - vdeb->sink_fmt; - - /* Set the right code for the source pad */ - if (IS_SRC(fmt->pad)) - fmt->format.code = vdeb->src_code; - - return 0; -} - -static void vimc_deb_adjust_sink_fmt(struct v4l2_mbus_framefmt *fmt) -{ - const struct vimc_deb_pix_map *vpix; - - /* Don't accept a code that is not on the debayer table */ - vpix = vimc_deb_pix_map_by_code(fmt->code); - if (!vpix) - fmt->code = sink_fmt_default.code; - - fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH, - VIMC_FRAME_MAX_WIDTH) & ~1; - fmt->height = clamp_t(u32, fmt->height, VIMC_FRAME_MIN_HEIGHT, - VIMC_FRAME_MAX_HEIGHT) & ~1; - - if (fmt->field == V4L2_FIELD_ANY) - fmt->field = sink_fmt_default.field; - - vimc_colorimetry_clamp(fmt); -} - -static int vimc_deb_set_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *fmt) -{ - struct vimc_deb_device *vdeb = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *sink_fmt; - - if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - /* Do not change the format while stream is on */ - if (vdeb->src_frame) - return -EBUSY; - - sink_fmt = &vdeb->sink_fmt; - } else { - sink_fmt = v4l2_subdev_get_try_format(sd, cfg, 0); - } - - /* - * Do not change the format of the source pad, - * it is propagated from the sink - */ - if (IS_SRC(fmt->pad)) { - fmt->format = *sink_fmt; - /* TODO: Add support for other formats */ - fmt->format.code = vdeb->src_code; - } else { - /* Set the new format in the sink pad */ - vimc_deb_adjust_sink_fmt(&fmt->format); - - dev_dbg(vdeb->dev, "%s: sink format update: " - "old:%dx%d (0x%x, %d, %d, %d, %d) " - "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vdeb->sd.name, - /* old */ - sink_fmt->width, sink_fmt->height, sink_fmt->code, - sink_fmt->colorspace, sink_fmt->quantization, - sink_fmt->xfer_func, sink_fmt->ycbcr_enc, - /* new */ - fmt->format.width, fmt->format.height, fmt->format.code, - fmt->format.colorspace, fmt->format.quantization, - fmt->format.xfer_func, fmt->format.ycbcr_enc); - - *sink_fmt = fmt->format; - } - - return 0; -} - -static const struct v4l2_subdev_pad_ops vimc_deb_pad_ops = { - .init_cfg = vimc_deb_init_cfg, - .enum_mbus_code = vimc_deb_enum_mbus_code, - .enum_frame_size = vimc_deb_enum_frame_size, - .get_fmt = vimc_deb_get_fmt, - .set_fmt = vimc_deb_set_fmt, -}; - -static void vimc_deb_set_rgb_mbus_fmt_rgb888_1x24(struct vimc_deb_device *vdeb, - unsigned int lin, - unsigned int col, - unsigned int rgb[3]) -{ - unsigned int i, index; - - index = VIMC_FRAME_INDEX(lin, col, vdeb->sink_fmt.width, 3); - for (i = 0; i < 3; i++) - vdeb->src_frame[index + i] = rgb[i]; -} - -static int vimc_deb_s_stream(struct v4l2_subdev *sd, int enable) -{ - struct vimc_deb_device *vdeb = v4l2_get_subdevdata(sd); - int ret; - - if (enable) { - const struct vimc_pix_map *vpix; - unsigned int frame_size; - - if (vdeb->src_frame) - return 0; - - /* Calculate the frame size of the source pad */ - vpix = vimc_pix_map_by_code(vdeb->src_code); - frame_size = vdeb->sink_fmt.width * vdeb->sink_fmt.height * - vpix->bpp; - - /* Save the bytes per pixel of the sink */ - vpix = vimc_pix_map_by_code(vdeb->sink_fmt.code); - vdeb->sink_bpp = vpix->bpp; - - /* Get the corresponding pixel map from the table */ - vdeb->sink_pix_map = - vimc_deb_pix_map_by_code(vdeb->sink_fmt.code); - - /* - * Allocate the frame buffer. Use vmalloc to be able to - * allocate a large amount of memory - */ - vdeb->src_frame = vmalloc(frame_size); - if (!vdeb->src_frame) - return -ENOMEM; - - /* Turn the stream on in the subdevices directly connected */ - ret = vimc_pipeline_s_stream(&vdeb->sd.entity, 1); - if (ret) { - vfree(vdeb->src_frame); - vdeb->src_frame = NULL; - return ret; - } - } else { - if (!vdeb->src_frame) - return 0; - - /* Disable streaming from the pipe */ - ret = vimc_pipeline_s_stream(&vdeb->sd.entity, 0); - if (ret) - return ret; - - vfree(vdeb->src_frame); - vdeb->src_frame = NULL; - } - - return 0; -} - -static const struct v4l2_subdev_video_ops vimc_deb_video_ops = { - .s_stream = vimc_deb_s_stream, -}; - -static const struct v4l2_subdev_ops vimc_deb_ops = { - .pad = &vimc_deb_pad_ops, - .video = &vimc_deb_video_ops, -}; - -static unsigned int vimc_deb_get_val(const u8 *bytes, - const unsigned int n_bytes) -{ - unsigned int i; - unsigned int acc = 0; - - for (i = 0; i < n_bytes; i++) - acc = acc + (bytes[i] << (8 * i)); - - return acc; -} - -static void vimc_deb_calc_rgb_sink(struct vimc_deb_device *vdeb, - const u8 *frame, - const unsigned int lin, - const unsigned int col, - unsigned int rgb[3]) -{ - unsigned int i, seek, wlin, wcol; - unsigned int n_rgb[3] = {0, 0, 0}; - - for (i = 0; i < 3; i++) - rgb[i] = 0; - - /* - * Calculate how many we need to subtract to get to the pixel in - * the top left corner of the mean window (considering the current - * pixel as the center) - */ - seek = deb_mean_win_size / 2; - - /* Sum the values of the colors in the mean window */ - - dev_dbg(vdeb->dev, - "deb: %s: --- Calc pixel %dx%d, window mean %d, seek %d ---\n", - vdeb->sd.name, lin, col, vdeb->sink_fmt.height, seek); - - /* - * Iterate through all the lines in the mean window, start - * with zero if the pixel is outside the frame and don't pass - * the height when the pixel is in the bottom border of the - * frame - */ - for (wlin = seek > lin ? 0 : lin - seek; - wlin < lin + seek + 1 && wlin < vdeb->sink_fmt.height; - wlin++) { - - /* - * Iterate through all the columns in the mean window, start - * with zero if the pixel is outside the frame and don't pass - * the width when the pixel is in the right border of the - * frame - */ - for (wcol = seek > col ? 0 : col - seek; - wcol < col + seek + 1 && wcol < vdeb->sink_fmt.width; - wcol++) { - enum vimc_deb_rgb_colors color; - unsigned int index; - - /* Check which color this pixel is */ - color = vdeb->sink_pix_map->order[wlin % 2][wcol % 2]; - - index = VIMC_FRAME_INDEX(wlin, wcol, - vdeb->sink_fmt.width, - vdeb->sink_bpp); - - dev_dbg(vdeb->dev, - "deb: %s: RGB CALC: frame index %d, win pos %dx%d, color %d\n", - vdeb->sd.name, index, wlin, wcol, color); - - /* Get its value */ - rgb[color] = rgb[color] + - vimc_deb_get_val(&frame[index], vdeb->sink_bpp); - - /* Save how many values we already added */ - n_rgb[color]++; - - dev_dbg(vdeb->dev, "deb: %s: RGB CALC: val %d, n %d\n", - vdeb->sd.name, rgb[color], n_rgb[color]); - } - } - - /* Calculate the mean */ - for (i = 0; i < 3; i++) { - dev_dbg(vdeb->dev, - "deb: %s: PRE CALC: %dx%d Color %d, val %d, n %d\n", - vdeb->sd.name, lin, col, i, rgb[i], n_rgb[i]); - - if (n_rgb[i]) - rgb[i] = rgb[i] / n_rgb[i]; - - dev_dbg(vdeb->dev, - "deb: %s: FINAL CALC: %dx%d Color %d, val %d\n", - vdeb->sd.name, lin, col, i, rgb[i]); - } -} - -static void vimc_deb_process_frame(struct vimc_ent_device *ved, - struct media_pad *sink, - const void *sink_frame) -{ - struct vimc_deb_device *vdeb = container_of(ved, struct vimc_deb_device, - ved); - unsigned int rgb[3]; - unsigned int i, j; - - /* If the stream in this node is not active, just return */ - if (!vdeb->src_frame) - return; - - for (i = 0; i < vdeb->sink_fmt.height; i++) - for (j = 0; j < vdeb->sink_fmt.width; j++) { - vimc_deb_calc_rgb_sink(vdeb, sink_frame, i, j, rgb); - vdeb->set_rgb_src(vdeb, i, j, rgb); - } - - /* Propagate the frame through all source pads */ - for (i = 1; i < vdeb->sd.entity.num_pads; i++) { - struct media_pad *pad = &vdeb->sd.entity.pads[i]; - - vimc_propagate_frame(pad, vdeb->src_frame); - } -} - -static void vimc_deb_comp_unbind(struct device *comp, struct device *master, - void *master_data) -{ - struct vimc_ent_device *ved = dev_get_drvdata(comp); - struct vimc_deb_device *vdeb = container_of(ved, struct vimc_deb_device, - ved); - - vimc_ent_sd_unregister(ved, &vdeb->sd); - kfree(vdeb); -} - -static int vimc_deb_comp_bind(struct device *comp, struct device *master, - void *master_data) -{ - struct v4l2_device *v4l2_dev = master_data; - struct vimc_platform_data *pdata = comp->platform_data; - struct vimc_deb_device *vdeb; - int ret; - - /* Allocate the vdeb struct */ - vdeb = kzalloc(sizeof(*vdeb), GFP_KERNEL); - if (!vdeb) - return -ENOMEM; - - /* Initialize ved and sd */ - ret = vimc_ent_sd_register(&vdeb->ved, &vdeb->sd, v4l2_dev, - pdata->entity_name, - MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV, 2, - (const unsigned long[2]) {MEDIA_PAD_FL_SINK, - MEDIA_PAD_FL_SOURCE}, - &vimc_deb_ops); - if (ret) { - kfree(vdeb); - return ret; - } - - vdeb->ved.process_frame = vimc_deb_process_frame; - dev_set_drvdata(comp, &vdeb->ved); - vdeb->dev = comp; - - /* Initialize the frame format */ - vdeb->sink_fmt = sink_fmt_default; - /* - * TODO: Add support for more output formats, we only support - * RGB888 for now - * NOTE: the src format is always the same as the sink, except - * for the code - */ - vdeb->src_code = MEDIA_BUS_FMT_RGB888_1X24; - vdeb->set_rgb_src = vimc_deb_set_rgb_mbus_fmt_rgb888_1x24; - - return 0; -} - -static const struct component_ops vimc_deb_comp_ops = { - .bind = vimc_deb_comp_bind, - .unbind = vimc_deb_comp_unbind, -}; - -static int vimc_deb_probe(struct platform_device *pdev) -{ - return component_add(&pdev->dev, &vimc_deb_comp_ops); -} - -static int vimc_deb_remove(struct platform_device *pdev) -{ - component_del(&pdev->dev, &vimc_deb_comp_ops); - - return 0; -} - -static const struct platform_device_id vimc_deb_driver_ids[] = { - { - .name = VIMC_DEB_DRV_NAME, - }, - { } -}; - -static struct platform_driver vimc_deb_pdrv = { - .probe = vimc_deb_probe, - .remove = vimc_deb_remove, - .id_table = vimc_deb_driver_ids, - .driver = { - .name = VIMC_DEB_DRV_NAME, - }, -}; - -module_platform_driver(vimc_deb_pdrv); - -MODULE_DEVICE_TABLE(platform, vimc_deb_driver_ids); - -MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC) Debayer"); -MODULE_AUTHOR("Helen Mae Koike Fornazier <helen.fornazier@gmail.com>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/vimc/vimc-scaler.c b/drivers/media/platform/vimc/vimc-scaler.c deleted file mode 100644 index b0952ee86296..000000000000 --- a/drivers/media/platform/vimc/vimc-scaler.c +++ /dev/null @@ -1,457 +0,0 @@ -/* - * vimc-scaler.c Virtual Media Controller Driver - * - * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/component.h> -#include <linux/module.h> -#include <linux/mod_devicetable.h> -#include <linux/platform_device.h> -#include <linux/vmalloc.h> -#include <linux/v4l2-mediabus.h> -#include <media/v4l2-subdev.h> - -#include "vimc-common.h" - -#define VIMC_SCA_DRV_NAME "vimc-scaler" - -static unsigned int sca_mult = 3; -module_param(sca_mult, uint, 0000); -MODULE_PARM_DESC(sca_mult, " the image size multiplier"); - -#define IS_SINK(pad) (!pad) -#define IS_SRC(pad) (pad) -#define MAX_ZOOM 8 - -struct vimc_sca_device { - struct vimc_ent_device ved; - struct v4l2_subdev sd; - struct device *dev; - /* NOTE: the source fmt is the same as the sink - * with the width and hight multiplied by mult - */ - struct v4l2_mbus_framefmt sink_fmt; - /* Values calculated when the stream starts */ - u8 *src_frame; - unsigned int src_line_size; - unsigned int bpp; -}; - -static const struct v4l2_mbus_framefmt sink_fmt_default = { - .width = 640, - .height = 480, - .code = MEDIA_BUS_FMT_RGB888_1X24, - .field = V4L2_FIELD_NONE, - .colorspace = V4L2_COLORSPACE_DEFAULT, -}; - -static int vimc_sca_init_cfg(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg) -{ - struct v4l2_mbus_framefmt *mf; - unsigned int i; - - mf = v4l2_subdev_get_try_format(sd, cfg, 0); - *mf = sink_fmt_default; - - for (i = 1; i < sd->entity.num_pads; i++) { - mf = v4l2_subdev_get_try_format(sd, cfg, i); - *mf = sink_fmt_default; - mf->width = mf->width * sca_mult; - mf->height = mf->height * sca_mult; - } - - return 0; -} - -static int vimc_sca_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_mbus_code_enum *code) -{ - const struct vimc_pix_map *vpix = vimc_pix_map_by_index(code->index); - - /* We don't support bayer format */ - if (!vpix || vpix->bayer) - return -EINVAL; - - code->code = vpix->code; - - return 0; -} - -static int vimc_sca_enum_frame_size(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_frame_size_enum *fse) -{ - const struct vimc_pix_map *vpix; - - if (fse->index) - return -EINVAL; - - /* Only accept code in the pix map table in non bayer format */ - vpix = vimc_pix_map_by_code(fse->code); - if (!vpix || vpix->bayer) - return -EINVAL; - - fse->min_width = VIMC_FRAME_MIN_WIDTH; - fse->min_height = VIMC_FRAME_MIN_HEIGHT; - - if (IS_SINK(fse->pad)) { - fse->max_width = VIMC_FRAME_MAX_WIDTH; - fse->max_height = VIMC_FRAME_MAX_HEIGHT; - } else { - fse->max_width = VIMC_FRAME_MAX_WIDTH * MAX_ZOOM; - fse->max_height = VIMC_FRAME_MAX_HEIGHT * MAX_ZOOM; - } - - return 0; -} - -static int vimc_sca_get_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *format) -{ - struct vimc_sca_device *vsca = v4l2_get_subdevdata(sd); - - /* Get the current sink format */ - format->format = (format->which == V4L2_SUBDEV_FORMAT_TRY) ? - *v4l2_subdev_get_try_format(sd, cfg, 0) : - vsca->sink_fmt; - - /* Scale the frame size for the source pad */ - if (IS_SRC(format->pad)) { - format->format.width = vsca->sink_fmt.width * sca_mult; - format->format.height = vsca->sink_fmt.height * sca_mult; - } - - return 0; -} - -static void vimc_sca_adjust_sink_fmt(struct v4l2_mbus_framefmt *fmt) -{ - const struct vimc_pix_map *vpix; - - /* Only accept code in the pix map table in non bayer format */ - vpix = vimc_pix_map_by_code(fmt->code); - if (!vpix || vpix->bayer) - fmt->code = sink_fmt_default.code; - - fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH, - VIMC_FRAME_MAX_WIDTH) & ~1; - fmt->height = clamp_t(u32, fmt->height, VIMC_FRAME_MIN_HEIGHT, - VIMC_FRAME_MAX_HEIGHT) & ~1; - - if (fmt->field == V4L2_FIELD_ANY) - fmt->field = sink_fmt_default.field; - - vimc_colorimetry_clamp(fmt); -} - -static int vimc_sca_set_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *fmt) -{ - struct vimc_sca_device *vsca = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *sink_fmt; - - if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - /* Do not change the format while stream is on */ - if (vsca->src_frame) - return -EBUSY; - - sink_fmt = &vsca->sink_fmt; - } else { - sink_fmt = v4l2_subdev_get_try_format(sd, cfg, 0); - } - - /* - * Do not change the format of the source pad, - * it is propagated from the sink - */ - if (IS_SRC(fmt->pad)) { - fmt->format = *sink_fmt; - fmt->format.width = sink_fmt->width * sca_mult; - fmt->format.height = sink_fmt->height * sca_mult; - } else { - /* Set the new format in the sink pad */ - vimc_sca_adjust_sink_fmt(&fmt->format); - - dev_dbg(vsca->dev, "%s: sink format update: " - "old:%dx%d (0x%x, %d, %d, %d, %d) " - "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vsca->sd.name, - /* old */ - sink_fmt->width, sink_fmt->height, sink_fmt->code, - sink_fmt->colorspace, sink_fmt->quantization, - sink_fmt->xfer_func, sink_fmt->ycbcr_enc, - /* new */ - fmt->format.width, fmt->format.height, fmt->format.code, - fmt->format.colorspace, fmt->format.quantization, - fmt->format.xfer_func, fmt->format.ycbcr_enc); - - *sink_fmt = fmt->format; - } - - return 0; -} - -static const struct v4l2_subdev_pad_ops vimc_sca_pad_ops = { - .init_cfg = vimc_sca_init_cfg, - .enum_mbus_code = vimc_sca_enum_mbus_code, - .enum_frame_size = vimc_sca_enum_frame_size, - .get_fmt = vimc_sca_get_fmt, - .set_fmt = vimc_sca_set_fmt, -}; - -static int vimc_sca_s_stream(struct v4l2_subdev *sd, int enable) -{ - struct vimc_sca_device *vsca = v4l2_get_subdevdata(sd); - int ret; - - if (enable) { - const struct vimc_pix_map *vpix; - unsigned int frame_size; - - if (vsca->src_frame) - return 0; - - /* Save the bytes per pixel of the sink */ - vpix = vimc_pix_map_by_code(vsca->sink_fmt.code); - vsca->bpp = vpix->bpp; - - /* Calculate the width in bytes of the src frame */ - vsca->src_line_size = vsca->sink_fmt.width * - sca_mult * vsca->bpp; - - /* Calculate the frame size of the source pad */ - frame_size = vsca->src_line_size * vsca->sink_fmt.height * - sca_mult; - - /* Allocate the frame buffer. Use vmalloc to be able to - * allocate a large amount of memory - */ - vsca->src_frame = vmalloc(frame_size); - if (!vsca->src_frame) - return -ENOMEM; - - /* Turn the stream on in the subdevices directly connected */ - ret = vimc_pipeline_s_stream(&vsca->sd.entity, 1); - if (ret) { - vfree(vsca->src_frame); - vsca->src_frame = NULL; - return ret; - } - } else { - if (!vsca->src_frame) - return 0; - - /* Disable streaming from the pipe */ - ret = vimc_pipeline_s_stream(&vsca->sd.entity, 0); - if (ret) - return ret; - - vfree(vsca->src_frame); - vsca->src_frame = NULL; - } - - return 0; -} - -static const struct v4l2_subdev_video_ops vimc_sca_video_ops = { - .s_stream = vimc_sca_s_stream, -}; - -static const struct v4l2_subdev_ops vimc_sca_ops = { - .pad = &vimc_sca_pad_ops, - .video = &vimc_sca_video_ops, -}; - -static void vimc_sca_fill_pix(u8 *const ptr, - const u8 *const pixel, - const unsigned int bpp) -{ - unsigned int i; - - /* copy the pixel to the pointer */ - for (i = 0; i < bpp; i++) - ptr[i] = pixel[i]; -} - -static void vimc_sca_scale_pix(const struct vimc_sca_device *const vsca, - const unsigned int lin, const unsigned int col, - const u8 *const sink_frame) -{ - unsigned int i, j, index; - const u8 *pixel; - - /* Point to the pixel value in position (lin, col) in the sink frame */ - index = VIMC_FRAME_INDEX(lin, col, - vsca->sink_fmt.width, - vsca->bpp); - pixel = &sink_frame[index]; - - dev_dbg(vsca->dev, - "sca: %s: --- scale_pix sink pos %dx%d, index %d ---\n", - vsca->sd.name, lin, col, index); - - /* point to the place we are going to put the first pixel - * in the scaled src frame - */ - index = VIMC_FRAME_INDEX(lin * sca_mult, col * sca_mult, - vsca->sink_fmt.width * sca_mult, vsca->bpp); - - dev_dbg(vsca->dev, "sca: %s: scale_pix src pos %dx%d, index %d\n", - vsca->sd.name, lin * sca_mult, col * sca_mult, index); - - /* Repeat this pixel mult times */ - for (i = 0; i < sca_mult; i++) { - /* Iterate through each beginning of a - * pixel repetition in a line - */ - for (j = 0; j < sca_mult * vsca->bpp; j += vsca->bpp) { - dev_dbg(vsca->dev, - "sca: %s: sca: scale_pix src pos %d\n", - vsca->sd.name, index + j); - - /* copy the pixel to the position index + j */ - vimc_sca_fill_pix(&vsca->src_frame[index + j], - pixel, vsca->bpp); - } - - /* move the index to the next line */ - index += vsca->src_line_size; - } -} - -static void vimc_sca_fill_src_frame(const struct vimc_sca_device *const vsca, - const u8 *const sink_frame) -{ - unsigned int i, j; - - /* Scale each pixel from the original sink frame */ - /* TODO: implement scale down, only scale up is supported for now */ - for (i = 0; i < vsca->sink_fmt.height; i++) - for (j = 0; j < vsca->sink_fmt.width; j++) - vimc_sca_scale_pix(vsca, i, j, sink_frame); -} - -static void vimc_sca_process_frame(struct vimc_ent_device *ved, - struct media_pad *sink, - const void *sink_frame) -{ - struct vimc_sca_device *vsca = container_of(ved, struct vimc_sca_device, - ved); - unsigned int i; - - /* If the stream in this node is not active, just return */ - if (!vsca->src_frame) - return; - - vimc_sca_fill_src_frame(vsca, sink_frame); - - /* Propagate the frame through all source pads */ - for (i = 1; i < vsca->sd.entity.num_pads; i++) { - struct media_pad *pad = &vsca->sd.entity.pads[i]; - - vimc_propagate_frame(pad, vsca->src_frame); - } -}; - -static void vimc_sca_comp_unbind(struct device *comp, struct device *master, - void *master_data) -{ - struct vimc_ent_device *ved = dev_get_drvdata(comp); - struct vimc_sca_device *vsca = container_of(ved, struct vimc_sca_device, - ved); - - vimc_ent_sd_unregister(ved, &vsca->sd); - kfree(vsca); -} - - -static int vimc_sca_comp_bind(struct device *comp, struct device *master, - void *master_data) -{ - struct v4l2_device *v4l2_dev = master_data; - struct vimc_platform_data *pdata = comp->platform_data; - struct vimc_sca_device *vsca; - int ret; - - /* Allocate the vsca struct */ - vsca = kzalloc(sizeof(*vsca), GFP_KERNEL); - if (!vsca) - return -ENOMEM; - - /* Initialize ved and sd */ - ret = vimc_ent_sd_register(&vsca->ved, &vsca->sd, v4l2_dev, - pdata->entity_name, - MEDIA_ENT_F_PROC_VIDEO_SCALER, 2, - (const unsigned long[2]) {MEDIA_PAD_FL_SINK, - MEDIA_PAD_FL_SOURCE}, - &vimc_sca_ops); - if (ret) { - kfree(vsca); - return ret; - } - - vsca->ved.process_frame = vimc_sca_process_frame; - dev_set_drvdata(comp, &vsca->ved); - vsca->dev = comp; - - /* Initialize the frame format */ - vsca->sink_fmt = sink_fmt_default; - - return 0; -} - -static const struct component_ops vimc_sca_comp_ops = { - .bind = vimc_sca_comp_bind, - .unbind = vimc_sca_comp_unbind, -}; - -static int vimc_sca_probe(struct platform_device *pdev) -{ - return component_add(&pdev->dev, &vimc_sca_comp_ops); -} - -static int vimc_sca_remove(struct platform_device *pdev) -{ - component_del(&pdev->dev, &vimc_sca_comp_ops); - - return 0; -} - -static const struct platform_device_id vimc_sca_driver_ids[] = { - { - .name = VIMC_SCA_DRV_NAME, - }, - { } -}; - -static struct platform_driver vimc_sca_pdrv = { - .probe = vimc_sca_probe, - .remove = vimc_sca_remove, - .id_table = vimc_sca_driver_ids, - .driver = { - .name = VIMC_SCA_DRV_NAME, - }, -}; - -module_platform_driver(vimc_sca_pdrv); - -MODULE_DEVICE_TABLE(platform, vimc_sca_driver_ids); - -MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC) Scaler"); -MODULE_AUTHOR("Helen Mae Koike Fornazier <helen.fornazier@gmail.com>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/vimc/vimc-sensor.c b/drivers/media/platform/vimc/vimc-sensor.c deleted file mode 100644 index 32ca9c6172b1..000000000000 --- a/drivers/media/platform/vimc/vimc-sensor.c +++ /dev/null @@ -1,480 +0,0 @@ -/* - * vimc-sensor.c Virtual Media Controller Driver - * - * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/component.h> -#include <linux/freezer.h> -#include <linux/kthread.h> -#include <linux/module.h> -#include <linux/mod_devicetable.h> -#include <linux/platform_device.h> -#include <linux/v4l2-mediabus.h> -#include <linux/vmalloc.h> -#include <media/v4l2-ctrls.h> -#include <media/v4l2-event.h> -#include <media/v4l2-subdev.h> -#include <media/tpg/v4l2-tpg.h> - -#include "vimc-common.h" - -#define VIMC_SEN_DRV_NAME "vimc-sensor" - -struct vimc_sen_device { - struct vimc_ent_device ved; - struct v4l2_subdev sd; - struct device *dev; - struct tpg_data tpg; - struct task_struct *kthread_sen; - u8 *frame; - /* The active format */ - struct v4l2_mbus_framefmt mbus_format; - struct v4l2_ctrl_handler hdl; -}; - -static const struct v4l2_mbus_framefmt fmt_default = { - .width = 640, - .height = 480, - .code = MEDIA_BUS_FMT_RGB888_1X24, - .field = V4L2_FIELD_NONE, - .colorspace = V4L2_COLORSPACE_DEFAULT, -}; - -static int vimc_sen_init_cfg(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg) -{ - unsigned int i; - - for (i = 0; i < sd->entity.num_pads; i++) { - struct v4l2_mbus_framefmt *mf; - - mf = v4l2_subdev_get_try_format(sd, cfg, i); - *mf = fmt_default; - } - - return 0; -} - -static int vimc_sen_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_mbus_code_enum *code) -{ - const struct vimc_pix_map *vpix = vimc_pix_map_by_index(code->index); - - if (!vpix) - return -EINVAL; - - code->code = vpix->code; - - return 0; -} - -static int vimc_sen_enum_frame_size(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_frame_size_enum *fse) -{ - const struct vimc_pix_map *vpix; - - if (fse->index) - return -EINVAL; - - /* Only accept code in the pix map table */ - vpix = vimc_pix_map_by_code(fse->code); - if (!vpix) - return -EINVAL; - - fse->min_width = VIMC_FRAME_MIN_WIDTH; - fse->max_width = VIMC_FRAME_MAX_WIDTH; - fse->min_height = VIMC_FRAME_MIN_HEIGHT; - fse->max_height = VIMC_FRAME_MAX_HEIGHT; - - return 0; -} - -static int vimc_sen_get_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *fmt) -{ - struct vimc_sen_device *vsen = - container_of(sd, struct vimc_sen_device, sd); - - fmt->format = fmt->which == V4L2_SUBDEV_FORMAT_TRY ? - *v4l2_subdev_get_try_format(sd, cfg, fmt->pad) : - vsen->mbus_format; - - return 0; -} - -static void vimc_sen_tpg_s_format(struct vimc_sen_device *vsen) -{ - const struct vimc_pix_map *vpix = - vimc_pix_map_by_code(vsen->mbus_format.code); - - tpg_reset_source(&vsen->tpg, vsen->mbus_format.width, - vsen->mbus_format.height, vsen->mbus_format.field); - tpg_s_bytesperline(&vsen->tpg, 0, vsen->mbus_format.width * vpix->bpp); - tpg_s_buf_height(&vsen->tpg, vsen->mbus_format.height); - tpg_s_fourcc(&vsen->tpg, vpix->pixelformat); - /* TODO: add support for V4L2_FIELD_ALTERNATE */ - tpg_s_field(&vsen->tpg, vsen->mbus_format.field, false); - tpg_s_colorspace(&vsen->tpg, vsen->mbus_format.colorspace); - tpg_s_ycbcr_enc(&vsen->tpg, vsen->mbus_format.ycbcr_enc); - tpg_s_quantization(&vsen->tpg, vsen->mbus_format.quantization); - tpg_s_xfer_func(&vsen->tpg, vsen->mbus_format.xfer_func); -} - -static void vimc_sen_adjust_fmt(struct v4l2_mbus_framefmt *fmt) -{ - const struct vimc_pix_map *vpix; - - /* Only accept code in the pix map table */ - vpix = vimc_pix_map_by_code(fmt->code); - if (!vpix) - fmt->code = fmt_default.code; - - fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH, - VIMC_FRAME_MAX_WIDTH) & ~1; - fmt->height = clamp_t(u32, fmt->height, VIMC_FRAME_MIN_HEIGHT, - VIMC_FRAME_MAX_HEIGHT) & ~1; - - /* TODO: add support for V4L2_FIELD_ALTERNATE */ - if (fmt->field == V4L2_FIELD_ANY || fmt->field == V4L2_FIELD_ALTERNATE) - fmt->field = fmt_default.field; - - vimc_colorimetry_clamp(fmt); -} - -static int vimc_sen_set_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *fmt) -{ - struct vimc_sen_device *vsen = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *mf; - - if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - /* Do not change the format while stream is on */ - if (vsen->frame) - return -EBUSY; - - mf = &vsen->mbus_format; - } else { - mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); - } - - /* Set the new format */ - vimc_sen_adjust_fmt(&fmt->format); - - dev_dbg(vsen->dev, "%s: format update: " - "old:%dx%d (0x%x, %d, %d, %d, %d) " - "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vsen->sd.name, - /* old */ - mf->width, mf->height, mf->code, - mf->colorspace, mf->quantization, - mf->xfer_func, mf->ycbcr_enc, - /* new */ - fmt->format.width, fmt->format.height, fmt->format.code, - fmt->format.colorspace, fmt->format.quantization, - fmt->format.xfer_func, fmt->format.ycbcr_enc); - - *mf = fmt->format; - - return 0; -} - -static const struct v4l2_subdev_pad_ops vimc_sen_pad_ops = { - .init_cfg = vimc_sen_init_cfg, - .enum_mbus_code = vimc_sen_enum_mbus_code, - .enum_frame_size = vimc_sen_enum_frame_size, - .get_fmt = vimc_sen_get_fmt, - .set_fmt = vimc_sen_set_fmt, -}; - -static int vimc_sen_tpg_thread(void *data) -{ - struct vimc_sen_device *vsen = data; - unsigned int i; - - set_freezable(); - set_current_state(TASK_UNINTERRUPTIBLE); - - for (;;) { - try_to_freeze(); - if (kthread_should_stop()) - break; - - tpg_fill_plane_buffer(&vsen->tpg, 0, 0, vsen->frame); - - /* Send the frame to all source pads */ - for (i = 0; i < vsen->sd.entity.num_pads; i++) - vimc_propagate_frame(&vsen->sd.entity.pads[i], - vsen->frame); - - /* 60 frames per second */ - schedule_timeout(HZ/60); - } - - return 0; -} - -static int vimc_sen_s_stream(struct v4l2_subdev *sd, int enable) -{ - struct vimc_sen_device *vsen = - container_of(sd, struct vimc_sen_device, sd); - int ret; - - if (enable) { - const struct vimc_pix_map *vpix; - unsigned int frame_size; - - if (vsen->kthread_sen) - /* tpg is already executing */ - return 0; - - /* Calculate the frame size */ - vpix = vimc_pix_map_by_code(vsen->mbus_format.code); - frame_size = vsen->mbus_format.width * vpix->bpp * - vsen->mbus_format.height; - - /* - * Allocate the frame buffer. Use vmalloc to be able to - * allocate a large amount of memory - */ - vsen->frame = vmalloc(frame_size); - if (!vsen->frame) - return -ENOMEM; - - /* configure the test pattern generator */ - vimc_sen_tpg_s_format(vsen); - - /* Initialize the image generator thread */ - vsen->kthread_sen = kthread_run(vimc_sen_tpg_thread, vsen, - "%s-sen", vsen->sd.v4l2_dev->name); - if (IS_ERR(vsen->kthread_sen)) { - dev_err(vsen->dev, "%s: kernel_thread() failed\n", - vsen->sd.name); - vfree(vsen->frame); - vsen->frame = NULL; - return PTR_ERR(vsen->kthread_sen); - } - } else { - if (!vsen->kthread_sen) - return 0; - - /* Stop image generator */ - ret = kthread_stop(vsen->kthread_sen); - if (ret) - return ret; - - vsen->kthread_sen = NULL; - vfree(vsen->frame); - vsen->frame = NULL; - return 0; - } - - return 0; -} - -static const struct v4l2_subdev_core_ops vimc_sen_core_ops = { - .log_status = v4l2_ctrl_subdev_log_status, - .subscribe_event = v4l2_ctrl_subdev_subscribe_event, - .unsubscribe_event = v4l2_event_subdev_unsubscribe, -}; - -static const struct v4l2_subdev_video_ops vimc_sen_video_ops = { - .s_stream = vimc_sen_s_stream, -}; - -static const struct v4l2_subdev_ops vimc_sen_ops = { - .core = &vimc_sen_core_ops, - .pad = &vimc_sen_pad_ops, - .video = &vimc_sen_video_ops, -}; - -static int vimc_sen_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct vimc_sen_device *vsen = - container_of(ctrl->handler, struct vimc_sen_device, hdl); - - switch (ctrl->id) { - case VIMC_CID_TEST_PATTERN: - tpg_s_pattern(&vsen->tpg, ctrl->val); - break; - case V4L2_CID_HFLIP: - tpg_s_hflip(&vsen->tpg, ctrl->val); - break; - case V4L2_CID_VFLIP: - tpg_s_vflip(&vsen->tpg, ctrl->val); - break; - case V4L2_CID_BRIGHTNESS: - tpg_s_brightness(&vsen->tpg, ctrl->val); - break; - case V4L2_CID_CONTRAST: - tpg_s_contrast(&vsen->tpg, ctrl->val); - break; - case V4L2_CID_HUE: - tpg_s_hue(&vsen->tpg, ctrl->val); - break; - case V4L2_CID_SATURATION: - tpg_s_saturation(&vsen->tpg, ctrl->val); - break; - default: - return -EINVAL; - } - return 0; -} - -static const struct v4l2_ctrl_ops vimc_sen_ctrl_ops = { - .s_ctrl = vimc_sen_s_ctrl, -}; - -static void vimc_sen_comp_unbind(struct device *comp, struct device *master, - void *master_data) -{ - struct vimc_ent_device *ved = dev_get_drvdata(comp); - struct vimc_sen_device *vsen = - container_of(ved, struct vimc_sen_device, ved); - - vimc_ent_sd_unregister(ved, &vsen->sd); - v4l2_ctrl_handler_free(&vsen->hdl); - tpg_free(&vsen->tpg); - kfree(vsen); -} - -/* Image Processing Controls */ -static const struct v4l2_ctrl_config vimc_sen_ctrl_class = { - .flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY, - .id = VIMC_CID_VIMC_CLASS, - .name = "VIMC Controls", - .type = V4L2_CTRL_TYPE_CTRL_CLASS, -}; - -static const struct v4l2_ctrl_config vimc_sen_ctrl_test_pattern = { - .ops = &vimc_sen_ctrl_ops, - .id = VIMC_CID_TEST_PATTERN, - .name = "Test Pattern", - .type = V4L2_CTRL_TYPE_MENU, - .max = TPG_PAT_NOISE, - .qmenu = tpg_pattern_strings, -}; - -static int vimc_sen_comp_bind(struct device *comp, struct device *master, - void *master_data) -{ - struct v4l2_device *v4l2_dev = master_data; - struct vimc_platform_data *pdata = comp->platform_data; - struct vimc_sen_device *vsen; - int ret; - - /* Allocate the vsen struct */ - vsen = kzalloc(sizeof(*vsen), GFP_KERNEL); - if (!vsen) - return -ENOMEM; - - v4l2_ctrl_handler_init(&vsen->hdl, 4); - - v4l2_ctrl_new_custom(&vsen->hdl, &vimc_sen_ctrl_class, NULL); - v4l2_ctrl_new_custom(&vsen->hdl, &vimc_sen_ctrl_test_pattern, NULL); - v4l2_ctrl_new_std(&vsen->hdl, &vimc_sen_ctrl_ops, - V4L2_CID_VFLIP, 0, 1, 1, 0); - v4l2_ctrl_new_std(&vsen->hdl, &vimc_sen_ctrl_ops, - V4L2_CID_HFLIP, 0, 1, 1, 0); - v4l2_ctrl_new_std(&vsen->hdl, &vimc_sen_ctrl_ops, - V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); - v4l2_ctrl_new_std(&vsen->hdl, &vimc_sen_ctrl_ops, - V4L2_CID_CONTRAST, 0, 255, 1, 128); - v4l2_ctrl_new_std(&vsen->hdl, &vimc_sen_ctrl_ops, - V4L2_CID_HUE, -128, 127, 1, 0); - v4l2_ctrl_new_std(&vsen->hdl, &vimc_sen_ctrl_ops, - V4L2_CID_SATURATION, 0, 255, 1, 128); - vsen->sd.ctrl_handler = &vsen->hdl; - if (vsen->hdl.error) { - ret = vsen->hdl.error; - goto err_free_vsen; - } - - /* Initialize ved and sd */ - ret = vimc_ent_sd_register(&vsen->ved, &vsen->sd, v4l2_dev, - pdata->entity_name, - MEDIA_ENT_F_CAM_SENSOR, 1, - (const unsigned long[1]) {MEDIA_PAD_FL_SOURCE}, - &vimc_sen_ops); - if (ret) - goto err_free_hdl; - - dev_set_drvdata(comp, &vsen->ved); - vsen->dev = comp; - - /* Initialize the frame format */ - vsen->mbus_format = fmt_default; - - /* Initialize the test pattern generator */ - tpg_init(&vsen->tpg, vsen->mbus_format.width, - vsen->mbus_format.height); - ret = tpg_alloc(&vsen->tpg, VIMC_FRAME_MAX_WIDTH); - if (ret) - goto err_unregister_ent_sd; - - return 0; - -err_unregister_ent_sd: - vimc_ent_sd_unregister(&vsen->ved, &vsen->sd); -err_free_hdl: - v4l2_ctrl_handler_free(&vsen->hdl); -err_free_vsen: - kfree(vsen); - - return ret; -} - -static const struct component_ops vimc_sen_comp_ops = { - .bind = vimc_sen_comp_bind, - .unbind = vimc_sen_comp_unbind, -}; - -static int vimc_sen_probe(struct platform_device *pdev) -{ - return component_add(&pdev->dev, &vimc_sen_comp_ops); -} - -static int vimc_sen_remove(struct platform_device *pdev) -{ - component_del(&pdev->dev, &vimc_sen_comp_ops); - - return 0; -} - -static const struct platform_device_id vimc_sen_driver_ids[] = { - { - .name = VIMC_SEN_DRV_NAME, - }, - { } -}; - -static struct platform_driver vimc_sen_pdrv = { - .probe = vimc_sen_probe, - .remove = vimc_sen_remove, - .id_table = vimc_sen_driver_ids, - .driver = { - .name = VIMC_SEN_DRV_NAME, - }, -}; - -module_platform_driver(vimc_sen_pdrv); - -MODULE_DEVICE_TABLE(platform, vimc_sen_driver_ids); - -MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC) Sensor"); -MODULE_AUTHOR("Helen Mae Koike Fornazier <helen.fornazier@gmail.com>"); -MODULE_LICENSE("GPL"); |