| /* |
| * Copyright (C) 2010-2013 Bluecherry, LLC <http://www.bluecherrydvr.com> |
| * |
| * Original author: |
| * Ben Collins <bcollins@ubuntu.com> |
| * |
| * Additional work by: |
| * John Brooks <john.brooks@bluecherry.net> |
| * |
| * 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/kernel.h> |
| #include <linux/module.h> |
| #include <linux/kthread.h> |
| #include <linux/freezer.h> |
| |
| #include <media/v4l2-ioctl.h> |
| #include <media/v4l2-common.h> |
| #include <media/v4l2-event.h> |
| #include <media/videobuf2-v4l2.h> |
| #include <media/videobuf2-dma-contig.h> |
| |
| #include "solo6x10.h" |
| #include "solo6x10-tw28.h" |
| |
| /* Image size is two fields, SOLO_HW_BPL is one horizontal line in hardware */ |
| #define SOLO_HW_BPL 2048 |
| #define solo_vlines(__solo) (__solo->video_vsize * 2) |
| #define solo_image_size(__solo) (solo_bytesperline(__solo) * \ |
| solo_vlines(__solo)) |
| #define solo_bytesperline(__solo) (__solo->video_hsize * 2) |
| |
| #define MIN_VID_BUFFERS 2 |
| |
| static inline void erase_on(struct solo_dev *solo_dev) |
| { |
| solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, SOLO_VO_DISP_ERASE_ON); |
| solo_dev->erasing = 1; |
| solo_dev->frame_blank = 0; |
| } |
| |
| static inline int erase_off(struct solo_dev *solo_dev) |
| { |
| if (!solo_dev->erasing) |
| return 0; |
| |
| /* First time around, assert erase off */ |
| if (!solo_dev->frame_blank) |
| solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, 0); |
| /* Keep the erasing flag on for 8 frames minimum */ |
| if (solo_dev->frame_blank++ >= 8) |
| solo_dev->erasing = 0; |
| |
| return 1; |
| } |
| |
| void solo_video_in_isr(struct solo_dev *solo_dev) |
| { |
| wake_up_interruptible_all(&solo_dev->disp_thread_wait); |
| } |
| |
| static void solo_win_setup(struct solo_dev *solo_dev, u8 ch, |
| int sx, int sy, int ex, int ey, int scale) |
| { |
| if (ch >= solo_dev->nr_chans) |
| return; |
| |
| /* Here, we just keep window/channel the same */ |
| solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL0(ch), |
| SOLO_VI_WIN_CHANNEL(ch) | |
| SOLO_VI_WIN_SX(sx) | |
| SOLO_VI_WIN_EX(ex) | |
| SOLO_VI_WIN_SCALE(scale)); |
| |
| solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL1(ch), |
| SOLO_VI_WIN_SY(sy) | |
| SOLO_VI_WIN_EY(ey)); |
| } |
| |
| static int solo_v4l2_ch_ext_4up(struct solo_dev *solo_dev, u8 idx, int on) |
| { |
| u8 ch = idx * 4; |
| |
| if (ch >= solo_dev->nr_chans) |
| return -EINVAL; |
| |
| if (!on) { |
| u8 i; |
| |
| for (i = ch; i < ch + 4; i++) |
| solo_win_setup(solo_dev, i, solo_dev->video_hsize, |
| solo_vlines(solo_dev), |
| solo_dev->video_hsize, |
| solo_vlines(solo_dev), 0); |
| return 0; |
| } |
| |
| /* Row 1 */ |
| solo_win_setup(solo_dev, ch, 0, 0, solo_dev->video_hsize / 2, |
| solo_vlines(solo_dev) / 2, 3); |
| solo_win_setup(solo_dev, ch + 1, solo_dev->video_hsize / 2, 0, |
| solo_dev->video_hsize, solo_vlines(solo_dev) / 2, 3); |
| /* Row 2 */ |
| solo_win_setup(solo_dev, ch + 2, 0, solo_vlines(solo_dev) / 2, |
| solo_dev->video_hsize / 2, solo_vlines(solo_dev), 3); |
| solo_win_setup(solo_dev, ch + 3, solo_dev->video_hsize / 2, |
| solo_vlines(solo_dev) / 2, solo_dev->video_hsize, |
| solo_vlines(solo_dev), 3); |
| |
| return 0; |
| } |
| |
| static int solo_v4l2_ch_ext_16up(struct solo_dev *solo_dev, int on) |
| { |
| int sy, ysize, hsize, i; |
| |
| if (!on) { |
| for (i = 0; i < 16; i++) |
| solo_win_setup(solo_dev, i, solo_dev->video_hsize, |
| solo_vlines(solo_dev), |
| solo_dev->video_hsize, |
| solo_vlines(solo_dev), 0); |
| return 0; |
| } |
| |
| ysize = solo_vlines(solo_dev) / 4; |
| hsize = solo_dev->video_hsize / 4; |
| |
| for (sy = 0, i = 0; i < 4; i++, sy += ysize) { |
| solo_win_setup(solo_dev, i * 4, 0, sy, hsize, |
| sy + ysize, 5); |
| solo_win_setup(solo_dev, (i * 4) + 1, hsize, sy, |
| hsize * 2, sy + ysize, 5); |
| solo_win_setup(solo_dev, (i * 4) + 2, hsize * 2, sy, |
| hsize * 3, sy + ysize, 5); |
| solo_win_setup(solo_dev, (i * 4) + 3, hsize * 3, sy, |
| solo_dev->video_hsize, sy + ysize, 5); |
| } |
| |
| return 0; |
| } |
| |
| static int solo_v4l2_ch(struct solo_dev *solo_dev, u8 ch, int on) |
| { |
| u8 ext_ch; |
| |
| if (ch < solo_dev->nr_chans) { |
| solo_win_setup(solo_dev, ch, on ? 0 : solo_dev->video_hsize, |
| on ? 0 : solo_vlines(solo_dev), |
| solo_dev->video_hsize, solo_vlines(solo_dev), |
| on ? 1 : 0); |
| return 0; |
| } |
| |
| if (ch >= solo_dev->nr_chans + solo_dev->nr_ext) |
| return -EINVAL; |
| |
| ext_ch = ch - solo_dev->nr_chans; |
| |
| /* 4up's first */ |
| if (ext_ch < 4) |
| return solo_v4l2_ch_ext_4up(solo_dev, ext_ch, on); |
| |
| /* Remaining case is 16up for 16-port */ |
| return solo_v4l2_ch_ext_16up(solo_dev, on); |
| } |
| |
| static int solo_v4l2_set_ch(struct solo_dev *solo_dev, u8 ch) |
| { |
| if (ch >= solo_dev->nr_chans + solo_dev->nr_ext) |
| return -EINVAL; |
| |
| erase_on(solo_dev); |
| |
| solo_v4l2_ch(solo_dev, solo_dev->cur_disp_ch, 0); |
| solo_v4l2_ch(solo_dev, ch, 1); |
| |
| solo_dev->cur_disp_ch = ch; |
| |
| return 0; |
| } |
| |
| static void solo_fillbuf(struct solo_dev *solo_dev, |
| struct vb2_buffer *vb) |
| { |
| struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
| dma_addr_t addr; |
| unsigned int fdma_addr; |
| int error = -1; |
| int i; |
| |
| addr = vb2_dma_contig_plane_dma_addr(vb, 0); |
| if (!addr) |
| goto finish_buf; |
| |
| if (erase_off(solo_dev)) { |
| void *p = vb2_plane_vaddr(vb, 0); |
| int image_size = solo_image_size(solo_dev); |
| |
| for (i = 0; i < image_size; i += 2) { |
| ((u8 *)p)[i] = 0x80; |
| ((u8 *)p)[i + 1] = 0x00; |
| } |
| error = 0; |
| } else { |
| fdma_addr = SOLO_DISP_EXT_ADDR + (solo_dev->old_write * |
| (SOLO_HW_BPL * solo_vlines(solo_dev))); |
| |
| error = solo_p2m_dma_t(solo_dev, 0, addr, fdma_addr, |
| solo_bytesperline(solo_dev), |
| solo_vlines(solo_dev), SOLO_HW_BPL); |
| } |
| |
| finish_buf: |
| if (!error) { |
| vb2_set_plane_payload(vb, 0, |
| solo_vlines(solo_dev) * solo_bytesperline(solo_dev)); |
| vbuf->sequence = solo_dev->sequence++; |
| vb->timestamp = ktime_get_ns(); |
| } |
| |
| vb2_buffer_done(vb, error ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); |
| } |
| |
| static void solo_thread_try(struct solo_dev *solo_dev) |
| { |
| struct solo_vb2_buf *vb; |
| |
| /* Only "break" from this loop if slock is held, otherwise |
| * just return. */ |
| for (;;) { |
| unsigned int cur_write; |
| |
| cur_write = SOLO_VI_STATUS0_PAGE( |
| solo_reg_read(solo_dev, SOLO_VI_STATUS0)); |
| if (cur_write == solo_dev->old_write) |
| return; |
| |
| spin_lock(&solo_dev->slock); |
| |
| if (list_empty(&solo_dev->vidq_active)) |
| break; |
| |
| vb = list_first_entry(&solo_dev->vidq_active, struct solo_vb2_buf, |
| list); |
| |
| solo_dev->old_write = cur_write; |
| list_del(&vb->list); |
| |
| spin_unlock(&solo_dev->slock); |
| |
| solo_fillbuf(solo_dev, &vb->vb.vb2_buf); |
| } |
| |
| assert_spin_locked(&solo_dev->slock); |
| spin_unlock(&solo_dev->slock); |
| } |
| |
| static int solo_thread(void *data) |
| { |
| struct solo_dev *solo_dev = data; |
| DECLARE_WAITQUEUE(wait, current); |
| |
| set_freezable(); |
| add_wait_queue(&solo_dev->disp_thread_wait, &wait); |
| |
| for (;;) { |
| long timeout = schedule_timeout_interruptible(HZ); |
| |
| if (timeout == -ERESTARTSYS || kthread_should_stop()) |
| break; |
| solo_thread_try(solo_dev); |
| try_to_freeze(); |
| } |
| |
| remove_wait_queue(&solo_dev->disp_thread_wait, &wait); |
| |
| return 0; |
| } |
| |
| static int solo_start_thread(struct solo_dev *solo_dev) |
| { |
| int ret = 0; |
| |
| solo_dev->kthread = kthread_run(solo_thread, solo_dev, SOLO6X10_NAME "_disp"); |
| |
| if (IS_ERR(solo_dev->kthread)) { |
| ret = PTR_ERR(solo_dev->kthread); |
| solo_dev->kthread = NULL; |
| return ret; |
| } |
| solo_irq_on(solo_dev, SOLO_IRQ_VIDEO_IN); |
| |
| return ret; |
| } |
| |
| static void solo_stop_thread(struct solo_dev *solo_dev) |
| { |
| if (!solo_dev->kthread) |
| return; |
| |
| solo_irq_off(solo_dev, SOLO_IRQ_VIDEO_IN); |
| kthread_stop(solo_dev->kthread); |
| solo_dev->kthread = NULL; |
| } |
| |
| static int solo_queue_setup(struct vb2_queue *q, |
| unsigned int *num_buffers, unsigned int *num_planes, |
| unsigned int sizes[], struct device *alloc_devs[]) |
| { |
| struct solo_dev *solo_dev = vb2_get_drv_priv(q); |
| |
| sizes[0] = solo_image_size(solo_dev); |
| *num_planes = 1; |
| |
| if (*num_buffers < MIN_VID_BUFFERS) |
| *num_buffers = MIN_VID_BUFFERS; |
| |
| return 0; |
| } |
| |
| static int solo_start_streaming(struct vb2_queue *q, unsigned int count) |
| { |
| struct solo_dev *solo_dev = vb2_get_drv_priv(q); |
| |
| solo_dev->sequence = 0; |
| return solo_start_thread(solo_dev); |
| } |
| |
| static void solo_stop_streaming(struct vb2_queue *q) |
| { |
| struct solo_dev *solo_dev = vb2_get_drv_priv(q); |
| |
| solo_stop_thread(solo_dev); |
| |
| spin_lock(&solo_dev->slock); |
| while (!list_empty(&solo_dev->vidq_active)) { |
| struct solo_vb2_buf *buf = list_entry( |
| solo_dev->vidq_active.next, |
| struct solo_vb2_buf, list); |
| |
| list_del(&buf->list); |
| vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
| } |
| spin_unlock(&solo_dev->slock); |
| INIT_LIST_HEAD(&solo_dev->vidq_active); |
| } |
| |
| static void solo_buf_queue(struct vb2_buffer *vb) |
| { |
| struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
| struct vb2_queue *vq = vb->vb2_queue; |
| struct solo_dev *solo_dev = vb2_get_drv_priv(vq); |
| struct solo_vb2_buf *solo_vb = |
| container_of(vbuf, struct solo_vb2_buf, vb); |
| |
| spin_lock(&solo_dev->slock); |
| list_add_tail(&solo_vb->list, &solo_dev->vidq_active); |
| spin_unlock(&solo_dev->slock); |
| wake_up_interruptible(&solo_dev->disp_thread_wait); |
| } |
| |
| static const struct vb2_ops solo_video_qops = { |
| .queue_setup = solo_queue_setup, |
| .buf_queue = solo_buf_queue, |
| .start_streaming = solo_start_streaming, |
| .stop_streaming = solo_stop_streaming, |
| .wait_prepare = vb2_ops_wait_prepare, |
| .wait_finish = vb2_ops_wait_finish, |
| }; |
| |
| static int solo_querycap(struct file *file, void *priv, |
| struct v4l2_capability *cap) |
| { |
| struct solo_dev *solo_dev = video_drvdata(file); |
| |
| strcpy(cap->driver, SOLO6X10_NAME); |
| strcpy(cap->card, "Softlogic 6x10"); |
| snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", |
| pci_name(solo_dev->pdev)); |
| cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | |
| V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; |
| cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; |
| return 0; |
| } |
| |
| static int solo_enum_ext_input(struct solo_dev *solo_dev, |
| struct v4l2_input *input) |
| { |
| int ext = input->index - solo_dev->nr_chans; |
| unsigned int nup, first; |
| |
| if (ext >= solo_dev->nr_ext) |
| return -EINVAL; |
| |
| nup = (ext == 4) ? 16 : 4; |
| first = (ext & 3) << 2; /* first channel in the n-up */ |
| snprintf(input->name, sizeof(input->name), |
| "Multi %d-up (cameras %d-%d)", |
| nup, first + 1, first + nup); |
| /* Possible outputs: |
| * Multi 4-up (cameras 1-4) |
| * Multi 4-up (cameras 5-8) |
| * Multi 4-up (cameras 9-12) |
| * Multi 4-up (cameras 13-16) |
| * Multi 16-up (cameras 1-16) |
| */ |
| return 0; |
| } |
| |
| static int solo_enum_input(struct file *file, void *priv, |
| struct v4l2_input *input) |
| { |
| struct solo_dev *solo_dev = video_drvdata(file); |
| |
| if (input->index >= solo_dev->nr_chans) { |
| int ret = solo_enum_ext_input(solo_dev, input); |
| |
| if (ret < 0) |
| return ret; |
| } else { |
| snprintf(input->name, sizeof(input->name), "Camera %d", |
| input->index + 1); |
| |
| /* We can only check this for normal inputs */ |
| if (!tw28_get_video_status(solo_dev, input->index)) |
| input->status = V4L2_IN_ST_NO_SIGNAL; |
| } |
| |
| input->type = V4L2_INPUT_TYPE_CAMERA; |
| input->std = solo_dev->vfd->tvnorms; |
| return 0; |
| } |
| |
| static int solo_set_input(struct file *file, void *priv, unsigned int index) |
| { |
| struct solo_dev *solo_dev = video_drvdata(file); |
| int ret = solo_v4l2_set_ch(solo_dev, index); |
| |
| if (!ret) { |
| while (erase_off(solo_dev)) |
| /* Do nothing */; |
| } |
| |
| return ret; |
| } |
| |
| static int solo_get_input(struct file *file, void *priv, unsigned int *index) |
| { |
| struct solo_dev *solo_dev = video_drvdata(file); |
| |
| *index = solo_dev->cur_disp_ch; |
| |
| return 0; |
| } |
| |
| static int solo_enum_fmt_cap(struct file *file, void *priv, |
| struct v4l2_fmtdesc *f) |
| { |
| if (f->index) |
| return -EINVAL; |
| |
| f->pixelformat = V4L2_PIX_FMT_UYVY; |
| strlcpy(f->description, "UYUV 4:2:2 Packed", sizeof(f->description)); |
| |
| return 0; |
| } |
| |
| static int solo_try_fmt_cap(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| struct solo_dev *solo_dev = video_drvdata(file); |
| struct v4l2_pix_format *pix = &f->fmt.pix; |
| int image_size = solo_image_size(solo_dev); |
| |
| if (pix->pixelformat != V4L2_PIX_FMT_UYVY) |
| return -EINVAL; |
| |
| pix->width = solo_dev->video_hsize; |
| pix->height = solo_vlines(solo_dev); |
| pix->sizeimage = image_size; |
| pix->field = V4L2_FIELD_INTERLACED; |
| pix->pixelformat = V4L2_PIX_FMT_UYVY; |
| pix->colorspace = V4L2_COLORSPACE_SMPTE170M; |
| pix->priv = 0; |
| return 0; |
| } |
| |
| static int solo_set_fmt_cap(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| struct solo_dev *solo_dev = video_drvdata(file); |
| |
| if (vb2_is_busy(&solo_dev->vidq)) |
| return -EBUSY; |
| |
| /* For right now, if it doesn't match our running config, |
| * then fail */ |
| return solo_try_fmt_cap(file, priv, f); |
| } |
| |
| static int solo_get_fmt_cap(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| struct solo_dev *solo_dev = video_drvdata(file); |
| struct v4l2_pix_format *pix = &f->fmt.pix; |
| |
| pix->width = solo_dev->video_hsize; |
| pix->height = solo_vlines(solo_dev); |
| pix->pixelformat = V4L2_PIX_FMT_UYVY; |
| pix->field = V4L2_FIELD_INTERLACED; |
| pix->sizeimage = solo_image_size(solo_dev); |
| pix->colorspace = V4L2_COLORSPACE_SMPTE170M; |
| pix->bytesperline = solo_bytesperline(solo_dev); |
| pix->priv = 0; |
| |
| return 0; |
| } |
| |
| static int solo_g_std(struct file *file, void *priv, v4l2_std_id *i) |
| { |
| struct solo_dev *solo_dev = video_drvdata(file); |
| |
| if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) |
| *i = V4L2_STD_NTSC_M; |
| else |
| *i = V4L2_STD_PAL; |
| return 0; |
| } |
| |
| int solo_set_video_type(struct solo_dev *solo_dev, bool is_50hz) |
| { |
| int i; |
| |
| /* Make sure all video nodes are idle */ |
| if (vb2_is_busy(&solo_dev->vidq)) |
| return -EBUSY; |
| for (i = 0; i < solo_dev->nr_chans; i++) |
| if (vb2_is_busy(&solo_dev->v4l2_enc[i]->vidq)) |
| return -EBUSY; |
| solo_dev->video_type = is_50hz ? SOLO_VO_FMT_TYPE_PAL : |
| SOLO_VO_FMT_TYPE_NTSC; |
| /* Reconfigure for the new standard */ |
| solo_disp_init(solo_dev); |
| solo_enc_init(solo_dev); |
| solo_tw28_init(solo_dev); |
| for (i = 0; i < solo_dev->nr_chans; i++) |
| solo_update_mode(solo_dev->v4l2_enc[i]); |
| return solo_v4l2_set_ch(solo_dev, solo_dev->cur_disp_ch); |
| } |
| |
| static int solo_s_std(struct file *file, void *priv, v4l2_std_id std) |
| { |
| struct solo_dev *solo_dev = video_drvdata(file); |
| |
| return solo_set_video_type(solo_dev, std & V4L2_STD_625_50); |
| } |
| |
| static int solo_s_ctrl(struct v4l2_ctrl *ctrl) |
| { |
| struct solo_dev *solo_dev = |
| container_of(ctrl->handler, struct solo_dev, disp_hdl); |
| |
| switch (ctrl->id) { |
| case V4L2_CID_MOTION_TRACE: |
| if (ctrl->val) { |
| solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER, |
| SOLO_VI_MOTION_Y_ADD | |
| SOLO_VI_MOTION_Y_VALUE(0x20) | |
| SOLO_VI_MOTION_CB_VALUE(0x10) | |
| SOLO_VI_MOTION_CR_VALUE(0x10)); |
| solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR, |
| SOLO_VI_MOTION_CR_ADD | |
| SOLO_VI_MOTION_Y_VALUE(0x10) | |
| SOLO_VI_MOTION_CB_VALUE(0x80) | |
| SOLO_VI_MOTION_CR_VALUE(0x10)); |
| } else { |
| solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER, 0); |
| solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR, 0); |
| } |
| return 0; |
| default: |
| break; |
| } |
| return -EINVAL; |
| } |
| |
| static const struct v4l2_file_operations solo_v4l2_fops = { |
| .owner = THIS_MODULE, |
| .open = v4l2_fh_open, |
| .release = vb2_fop_release, |
| .read = vb2_fop_read, |
| .poll = vb2_fop_poll, |
| .mmap = vb2_fop_mmap, |
| .unlocked_ioctl = video_ioctl2, |
| }; |
| |
| static const struct v4l2_ioctl_ops solo_v4l2_ioctl_ops = { |
| .vidioc_querycap = solo_querycap, |
| .vidioc_s_std = solo_s_std, |
| .vidioc_g_std = solo_g_std, |
| /* Input callbacks */ |
| .vidioc_enum_input = solo_enum_input, |
| .vidioc_s_input = solo_set_input, |
| .vidioc_g_input = solo_get_input, |
| /* Video capture format callbacks */ |
| .vidioc_enum_fmt_vid_cap = solo_enum_fmt_cap, |
| .vidioc_try_fmt_vid_cap = solo_try_fmt_cap, |
| .vidioc_s_fmt_vid_cap = solo_set_fmt_cap, |
| .vidioc_g_fmt_vid_cap = solo_get_fmt_cap, |
| /* Streaming I/O */ |
| .vidioc_reqbufs = vb2_ioctl_reqbufs, |
| .vidioc_querybuf = vb2_ioctl_querybuf, |
| .vidioc_qbuf = vb2_ioctl_qbuf, |
| .vidioc_dqbuf = vb2_ioctl_dqbuf, |
| .vidioc_streamon = vb2_ioctl_streamon, |
| .vidioc_streamoff = vb2_ioctl_streamoff, |
| /* Logging and events */ |
| .vidioc_log_status = v4l2_ctrl_log_status, |
| .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
| .vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
| }; |
| |
| static const struct video_device solo_v4l2_template = { |
| .name = SOLO6X10_NAME, |
| .fops = &solo_v4l2_fops, |
| .ioctl_ops = &solo_v4l2_ioctl_ops, |
| .minor = -1, |
| .release = video_device_release, |
| .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL, |
| }; |
| |
| static const struct v4l2_ctrl_ops solo_ctrl_ops = { |
| .s_ctrl = solo_s_ctrl, |
| }; |
| |
| static const struct v4l2_ctrl_config solo_motion_trace_ctrl = { |
| .ops = &solo_ctrl_ops, |
| .id = V4L2_CID_MOTION_TRACE, |
| .name = "Motion Detection Trace", |
| .type = V4L2_CTRL_TYPE_BOOLEAN, |
| .max = 1, |
| .step = 1, |
| }; |
| |
| int solo_v4l2_init(struct solo_dev *solo_dev, unsigned nr) |
| { |
| int ret; |
| int i; |
| |
| init_waitqueue_head(&solo_dev->disp_thread_wait); |
| spin_lock_init(&solo_dev->slock); |
| mutex_init(&solo_dev->lock); |
| INIT_LIST_HEAD(&solo_dev->vidq_active); |
| |
| solo_dev->vfd = video_device_alloc(); |
| if (!solo_dev->vfd) |
| return -ENOMEM; |
| |
| *solo_dev->vfd = solo_v4l2_template; |
| solo_dev->vfd->v4l2_dev = &solo_dev->v4l2_dev; |
| solo_dev->vfd->queue = &solo_dev->vidq; |
| solo_dev->vfd->lock = &solo_dev->lock; |
| v4l2_ctrl_handler_init(&solo_dev->disp_hdl, 1); |
| v4l2_ctrl_new_custom(&solo_dev->disp_hdl, &solo_motion_trace_ctrl, NULL); |
| if (solo_dev->disp_hdl.error) { |
| ret = solo_dev->disp_hdl.error; |
| goto fail; |
| } |
| solo_dev->vfd->ctrl_handler = &solo_dev->disp_hdl; |
| |
| video_set_drvdata(solo_dev->vfd, solo_dev); |
| |
| solo_dev->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| solo_dev->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; |
| solo_dev->vidq.ops = &solo_video_qops; |
| solo_dev->vidq.mem_ops = &vb2_dma_contig_memops; |
| solo_dev->vidq.drv_priv = solo_dev; |
| solo_dev->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
| solo_dev->vidq.gfp_flags = __GFP_DMA32 | __GFP_KSWAPD_RECLAIM; |
| solo_dev->vidq.buf_struct_size = sizeof(struct solo_vb2_buf); |
| solo_dev->vidq.lock = &solo_dev->lock; |
| solo_dev->vidq.dev = &solo_dev->pdev->dev; |
| ret = vb2_queue_init(&solo_dev->vidq); |
| if (ret < 0) |
| goto fail; |
| |
| /* Cycle all the channels and clear */ |
| for (i = 0; i < solo_dev->nr_chans; i++) { |
| solo_v4l2_set_ch(solo_dev, i); |
| while (erase_off(solo_dev)) |
| /* Do nothing */; |
| } |
| |
| /* Set the default display channel */ |
| solo_v4l2_set_ch(solo_dev, 0); |
| while (erase_off(solo_dev)) |
| /* Do nothing */; |
| |
| ret = video_register_device(solo_dev->vfd, VFL_TYPE_GRABBER, nr); |
| if (ret < 0) |
| goto fail; |
| |
| snprintf(solo_dev->vfd->name, sizeof(solo_dev->vfd->name), "%s (%i)", |
| SOLO6X10_NAME, solo_dev->vfd->num); |
| |
| dev_info(&solo_dev->pdev->dev, "Display as /dev/video%d with %d inputs (%d extended)\n", |
| solo_dev->vfd->num, |
| solo_dev->nr_chans, solo_dev->nr_ext); |
| |
| return 0; |
| |
| fail: |
| video_device_release(solo_dev->vfd); |
| v4l2_ctrl_handler_free(&solo_dev->disp_hdl); |
| solo_dev->vfd = NULL; |
| return ret; |
| } |
| |
| void solo_v4l2_exit(struct solo_dev *solo_dev) |
| { |
| if (solo_dev->vfd == NULL) |
| return; |
| |
| video_unregister_device(solo_dev->vfd); |
| v4l2_ctrl_handler_free(&solo_dev->disp_hdl); |
| solo_dev->vfd = NULL; |
| } |