From 7b58e8b4d4cd279b00124e50cbbc70b01248a0ee Mon Sep 17 00:00:00 2001 From: Christian Gromm Date: Tue, 2 Aug 2016 11:48:39 +0200 Subject: recipes-kernel: update driver recipes This patch changes the recipes to fetch the driver sources from AGL's src directory. It therefore removes the redundant source files from the recipe directory. Change-Id: Ib3c48a0c7e79144713ccd8e10a89185cd929b41c Signed-off-by: Christian Gromm (cherry picked from commit 1ea0cef6934ccadc36395b60d8b8d58d69016e28) --- recipes-kernel/aim-v4l2/files/video.c | 609 ---------------------------------- 1 file changed, 609 deletions(-) delete mode 100644 recipes-kernel/aim-v4l2/files/video.c (limited to 'recipes-kernel/aim-v4l2/files/video.c') diff --git a/recipes-kernel/aim-v4l2/files/video.c b/recipes-kernel/aim-v4l2/files/video.c deleted file mode 100644 index 13abf7c2..00000000 --- a/recipes-kernel/aim-v4l2/files/video.c +++ /dev/null @@ -1,609 +0,0 @@ -/* - * V4L2 AIM - V4L2 Application Interface Module for MostCore - * - * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG - * - * 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. - * - * This file is licensed under GPLv2. - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "mostcore.h" - -#define V4L2_AIM_MAX_INPUT 1 - -static struct most_aim aim_info; - -struct most_video_dev { - struct most_interface *iface; - int ch_idx; - struct list_head list; - bool mute; - - struct list_head pending_mbos; - spinlock_t list_lock; - - struct v4l2_device v4l2_dev; - atomic_t access_ref; - struct video_device *vdev; - unsigned int ctrl_input; - - struct mutex lock; - - wait_queue_head_t wait_data; -}; - -struct aim_fh { - /* must be the first field of this struct! */ - struct v4l2_fh fh; - struct most_video_dev *mdev; - u32 offs; -}; - -static struct list_head video_devices = LIST_HEAD_INIT(video_devices); -static struct spinlock list_lock; - -static inline bool data_ready(struct most_video_dev *mdev) -{ - return !list_empty(&mdev->pending_mbos); -} - -static inline struct mbo *get_top_mbo(struct most_video_dev *mdev) -{ - return list_first_entry(&mdev->pending_mbos, struct mbo, list); -} - -static int aim_vdev_open(struct file *filp) -{ - int ret; - struct video_device *vdev = video_devdata(filp); - struct most_video_dev *mdev = video_drvdata(filp); - struct aim_fh *fh; - - pr_info("aim_vdev_open()\n"); - - switch (vdev->vfl_type) { - case VFL_TYPE_GRABBER: - break; - default: - return -EINVAL; - } - - fh = kzalloc(sizeof(*fh), GFP_KERNEL); - if (!fh) - return -ENOMEM; - - if (!atomic_inc_and_test(&mdev->access_ref)) { - pr_err("too many clients\n"); - ret = -EBUSY; - goto err_dec; - } - - fh->mdev = mdev; - v4l2_fh_init(&fh->fh, vdev); - filp->private_data = fh; - - v4l2_fh_add(&fh->fh); - - ret = most_start_channel(mdev->iface, mdev->ch_idx, &aim_info); - if (ret) { - pr_err("most_start_channel() failed\n"); - goto err_rm; - } - - return 0; - -err_rm: - v4l2_fh_del(&fh->fh); - v4l2_fh_exit(&fh->fh); - -err_dec: - atomic_dec(&mdev->access_ref); - kfree(fh); - return ret; -} - -static int aim_vdev_close(struct file *filp) -{ - struct aim_fh *fh = filp->private_data; - struct most_video_dev *mdev = fh->mdev; - struct mbo *mbo, *tmp; - - pr_info("aim_vdev_close()\n"); - - /* - * We need to put MBOs back before we call most_stop_channel() - * to deallocate MBOs. - * From the other hand mostcore still calling rx_completion() - * to deliver MBOs until most_stop_channel() is called. - * Use mute to work around this issue. - * This must be implemented in core. - */ - - spin_lock(&mdev->list_lock); - mdev->mute = true; - list_for_each_entry_safe(mbo, tmp, &mdev->pending_mbos, list) { - list_del(&mbo->list); - spin_unlock(&mdev->list_lock); - most_put_mbo(mbo); - spin_lock(&mdev->list_lock); - } - spin_unlock(&mdev->list_lock); - most_stop_channel(mdev->iface, mdev->ch_idx, &aim_info); - mdev->mute = false; - - v4l2_fh_del(&fh->fh); - v4l2_fh_exit(&fh->fh); - - atomic_dec(&mdev->access_ref); - kfree(fh); - return 0; -} - -static ssize_t aim_vdev_read(struct file *filp, char __user *buf, - size_t count, loff_t *pos) -{ - struct aim_fh *fh = filp->private_data; - struct most_video_dev *mdev = fh->mdev; - int ret = 0; - - if (*pos) - return -ESPIPE; - - if (!mdev) - return -ENODEV; - - /* wait for the first buffer */ - if (!(filp->f_flags & O_NONBLOCK)) { - if (wait_event_interruptible(mdev->wait_data, data_ready(mdev))) - return -ERESTARTSYS; - } - - if (!data_ready(mdev)) - return -EAGAIN; - - while (count > 0 && data_ready(mdev)) { - struct mbo *const mbo = get_top_mbo(mdev); - int const rem = mbo->processed_length - fh->offs; - int const cnt = rem < count ? rem : count; - - if (copy_to_user(buf, mbo->virt_address + fh->offs, cnt)) { - pr_err("read: copy_to_user failed\n"); - if (!ret) - ret = -EFAULT; - return ret; - } - - fh->offs += cnt; - count -= cnt; - buf += cnt; - ret += cnt; - - if (cnt >= rem) { - fh->offs = 0; - spin_lock(&mdev->list_lock); - list_del(&mbo->list); - spin_unlock(&mdev->list_lock); - most_put_mbo(mbo); - } - } - return ret; -} - -static unsigned int aim_vdev_poll(struct file *filp, poll_table *wait) -{ - struct aim_fh *fh = filp->private_data; - struct most_video_dev *mdev = fh->mdev; - unsigned int mask = 0; - - /* only wait if no data is available */ - if (!data_ready(mdev)) - poll_wait(filp, &mdev->wait_data, wait); - if (data_ready(mdev)) - mask |= POLLIN | POLLRDNORM; - - return mask; -} - -static void aim_set_format_struct(struct v4l2_format *f) -{ - f->fmt.pix.width = 8; - f->fmt.pix.height = 8; - f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; - f->fmt.pix.bytesperline = 0; - f->fmt.pix.sizeimage = 188 * 2; - f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709; - f->fmt.pix.field = V4L2_FIELD_NONE; - f->fmt.pix.priv = 0; -} - -static int aim_set_format(struct most_video_dev *mdev, unsigned int cmd, - struct v4l2_format *format) -{ - if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_MPEG) - return -EINVAL; - - if (cmd == VIDIOC_TRY_FMT) - return 0; - - aim_set_format_struct(format); - - return 0; -} - -static int vidioc_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - struct aim_fh *fh = priv; - struct most_video_dev *mdev = fh->mdev; - - pr_info("vidioc_querycap()\n"); - - strlcpy(cap->driver, "v4l2_most_aim", sizeof(cap->driver)); - strlcpy(cap->card, "my_card", sizeof(cap->card)); - snprintf(cap->bus_info, sizeof(cap->bus_info), - "%s", mdev->iface->description); - - cap->capabilities = - V4L2_CAP_READWRITE | - V4L2_CAP_TUNER | - V4L2_CAP_VIDEO_CAPTURE; - return 0; -} - -static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *f) -{ - pr_info("vidioc_enum_fmt_vid_cap() %d\n", f->index); - - if (f->index) - return -EINVAL; - - strcpy(f->description, "MPEG"); - f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - f->flags = V4L2_FMT_FLAG_COMPRESSED; - f->pixelformat = V4L2_PIX_FMT_MPEG; - - return 0; -} - -static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - pr_info("vidioc_g_fmt_vid_cap()\n"); - - aim_set_format_struct(f); - return 0; -} - -static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct aim_fh *fh = priv; - struct most_video_dev *mdev = fh->mdev; - - return aim_set_format(mdev, VIDIOC_TRY_FMT, f); -} - -static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct aim_fh *fh = priv; - struct most_video_dev *mdev = fh->mdev; - - return aim_set_format(mdev, VIDIOC_S_FMT, f); -} - -static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) -{ - pr_info("vidioc_g_std()\n"); - - *norm = V4L2_STD_UNKNOWN; - return 0; -} - -static int vidioc_enum_input(struct file *file, void *priv, - struct v4l2_input *input) -{ - struct aim_fh *fh = priv; - struct most_video_dev *mdev = fh->mdev; - - if (input->index >= V4L2_AIM_MAX_INPUT) - return -EINVAL; - - strcpy(input->name, "MOST Video"); - input->type |= V4L2_INPUT_TYPE_CAMERA; - input->audioset = 0; - - input->std = mdev->vdev->tvnorms; - - return 0; -} - -static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) -{ - struct aim_fh *fh = priv; - struct most_video_dev *mdev = fh->mdev; - *i = mdev->ctrl_input; - return 0; -} - -static int vidioc_s_input(struct file *file, void *priv, unsigned int index) -{ - struct aim_fh *fh = priv; - struct most_video_dev *mdev = fh->mdev; - - pr_info("vidioc_s_input(%d)\n", index); - - if (index >= V4L2_AIM_MAX_INPUT) - return -EINVAL; - mdev->ctrl_input = index; - return 0; -} - -static struct v4l2_file_operations aim_fops = { - .owner = THIS_MODULE, - .open = aim_vdev_open, - .release = aim_vdev_close, - .read = aim_vdev_read, - .poll = aim_vdev_poll, - .unlocked_ioctl = video_ioctl2, -}; - -static const struct v4l2_ioctl_ops video_ioctl_ops = { - .vidioc_querycap = vidioc_querycap, - .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, - .vidioc_g_std = vidioc_g_std, - .vidioc_enum_input = vidioc_enum_input, - .vidioc_g_input = vidioc_g_input, - .vidioc_s_input = vidioc_s_input, -}; - -static const struct video_device aim_videodev_template = { - .fops = &aim_fops, - .release = video_device_release, - .ioctl_ops = &video_ioctl_ops, - .tvnorms = V4L2_STD_UNKNOWN, -}; - -/**************************************************************************/ - -static struct most_video_dev *get_aim_dev( - struct most_interface *iface, int channel_idx) -{ - struct most_video_dev *mdev, *tmp; - - spin_lock(&list_lock); - list_for_each_entry_safe(mdev, tmp, &video_devices, list) { - if (mdev->iface == iface && mdev->ch_idx == channel_idx) { - spin_unlock(&list_lock); - return mdev; - } - } - spin_unlock(&list_lock); - return NULL; -} - -static int aim_rx_data(struct mbo *mbo) -{ - struct most_video_dev *mdev = - get_aim_dev(mbo->ifp, mbo->hdm_channel_id); - - if (!mdev) - return -EIO; - - spin_lock(&mdev->list_lock); - if (unlikely(mdev->mute)) { - spin_unlock(&mdev->list_lock); - return -EIO; - } - - list_add_tail(&mbo->list, &mdev->pending_mbos); - spin_unlock(&mdev->list_lock); - wake_up_interruptible(&mdev->wait_data); - return 0; -} - -static int aim_register_videodev(struct most_video_dev *mdev) -{ - int retval = -ENOMEM; - int ret; - - pr_info("aim_register_videodev()\n"); - - init_waitqueue_head(&mdev->wait_data); - - /* allocate and fill v4l2 video struct */ - mdev->vdev = video_device_alloc(); - if (!mdev->vdev) - return -ENOMEM; - - /* Fill the video capture device struct */ - *mdev->vdev = aim_videodev_template; - mdev->vdev->v4l2_dev = &mdev->v4l2_dev; - mdev->vdev->lock = &mdev->lock; - strcpy(mdev->vdev->name, "most v4l2 aim video"); - - /* Register the v4l2 device */ - video_set_drvdata(mdev->vdev, mdev); - retval = video_register_device(mdev->vdev, VFL_TYPE_GRABBER, -1); - if (retval != 0) { - pr_err("video_register_device failed (%d)\n", retval); - ret = -ENODEV; - goto err_vbi_dev; - } - - return 0; - -err_vbi_dev: - video_device_release(mdev->vdev); - return ret; -} - -static void aim_unregister_videodev(struct most_video_dev *mdev) -{ - pr_info("aim_unregister_videodev()\n"); - - video_unregister_device(mdev->vdev); -} - -static void aim_v4l2_dev_release(struct v4l2_device *v4l2_dev) -{ - struct most_video_dev *mdev = - container_of(v4l2_dev, struct most_video_dev, v4l2_dev); - - v4l2_device_unregister(v4l2_dev); - kfree(mdev); -} - -static int aim_probe_channel(struct most_interface *iface, int channel_idx, - struct most_channel_config *ccfg, - struct kobject *parent, char *name) -{ - int ret; - struct most_video_dev *mdev = get_aim_dev(iface, channel_idx); - - pr_info("aim_probe_channel()\n"); - - if (mdev) { - pr_err("channel already linked\n"); - return -EEXIST; - } - - if (ccfg->direction != MOST_CH_RX) { - pr_err("wrong direction, expect rx\n"); - return -EINVAL; - } - - if (ccfg->data_type != MOST_CH_SYNC && - ccfg->data_type != MOST_CH_ISOC_AVP) { - pr_err("wrong channel type, expect sync or isoc_avp\n"); - return -EINVAL; - } - - mdev = kzalloc(sizeof(*mdev), GFP_KERNEL); - if (!mdev) - return -ENOMEM; - - mutex_init(&mdev->lock); - atomic_set(&mdev->access_ref, -1); - spin_lock_init(&mdev->list_lock); - INIT_LIST_HEAD(&mdev->pending_mbos); - mdev->iface = iface; - mdev->ch_idx = channel_idx; - mdev->v4l2_dev.release = aim_v4l2_dev_release; - - /* Create the v4l2_device */ - strlcpy(mdev->v4l2_dev.name, "most_video_device", - sizeof(mdev->v4l2_dev.name)); - ret = v4l2_device_register(NULL, &mdev->v4l2_dev); - if (ret) { - pr_err("v4l2_device_register() failed\n"); - kfree(mdev); - return ret; - } - - ret = aim_register_videodev(mdev); - if (ret) - goto err_unreg; - - spin_lock(&list_lock); - list_add(&mdev->list, &video_devices); - spin_unlock(&list_lock); - return 0; - -err_unreg: - v4l2_device_disconnect(&mdev->v4l2_dev); - v4l2_device_put(&mdev->v4l2_dev); - return ret; -} - -static int aim_disconnect_channel(struct most_interface *iface, - int channel_idx) -{ - struct most_video_dev *mdev = get_aim_dev(iface, channel_idx); - - pr_info("aim_disconnect_channel()\n"); - - if (!mdev) { - pr_err("no such channel is linked\n"); - return -ENOENT; - } - - spin_lock(&list_lock); - list_del(&mdev->list); - spin_unlock(&list_lock); - - aim_unregister_videodev(mdev); - v4l2_device_disconnect(&mdev->v4l2_dev); - v4l2_device_put(&mdev->v4l2_dev); - return 0; -} - -static struct most_aim aim_info = { - .name = "v4l", - .probe_channel = aim_probe_channel, - .disconnect_channel = aim_disconnect_channel, - .rx_completion = aim_rx_data, -}; - -static int __init aim_init(void) -{ - spin_lock_init(&list_lock); - return most_register_aim(&aim_info); -} - -static void __exit aim_exit(void) -{ - struct most_video_dev *mdev, *tmp; - - /* - * As the mostcore currently doesn't call disconnect_channel() - * for linked channels while we call most_deregister_aim() - * we simulate this call here. - * This must be fixed in core. - */ - spin_lock(&list_lock); - list_for_each_entry_safe(mdev, tmp, &video_devices, list) { - list_del(&mdev->list); - spin_unlock(&list_lock); - - aim_unregister_videodev(mdev); - v4l2_device_disconnect(&mdev->v4l2_dev); - v4l2_device_put(&mdev->v4l2_dev); - spin_lock(&list_lock); - } - spin_unlock(&list_lock); - - most_deregister_aim(&aim_info); - BUG_ON(!list_empty(&video_devices)); -} - -module_init(aim_init); -module_exit(aim_exit); - -MODULE_DESCRIPTION("V4L2 Application Interface Module for MostCore"); -MODULE_AUTHOR("Andrey Shvetsov "); -MODULE_LICENSE("GPL"); -- cgit 1.2.3-korg