2 * Copyright (C) 2010-2013 Bluecherry, LLC <http://www.bluecherrydvr.com>
5 * Ben Collins <bcollins@ubuntu.com>
8 * John Brooks <john.brooks@bluecherry.net>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
21 #include <linux/kernel.h>
22 #include <linux/module.h>
23 #include <linux/kthread.h>
24 #include <linux/freezer.h>
26 #include <media/v4l2-ioctl.h>
27 #include <media/v4l2-common.h>
28 #include <media/v4l2-event.h>
29 #include <media/videobuf2-dma-contig.h>
32 #include "solo6x10-tw28.h"
34 /* Image size is two fields, SOLO_HW_BPL is one horizontal line in hardware */
35 #define SOLO_HW_BPL 2048
36 #define solo_vlines(__solo) (__solo->video_vsize * 2)
37 #define solo_image_size(__solo) (solo_bytesperline(__solo) * \
39 #define solo_bytesperline(__solo) (__solo->video_hsize * 2)
41 #define MIN_VID_BUFFERS 2
43 static inline void erase_on(struct solo_dev *solo_dev)
45 solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, SOLO_VO_DISP_ERASE_ON);
46 solo_dev->erasing = 1;
47 solo_dev->frame_blank = 0;
50 static inline int erase_off(struct solo_dev *solo_dev)
52 if (!solo_dev->erasing)
55 /* First time around, assert erase off */
56 if (!solo_dev->frame_blank)
57 solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, 0);
58 /* Keep the erasing flag on for 8 frames minimum */
59 if (solo_dev->frame_blank++ >= 8)
60 solo_dev->erasing = 0;
65 void solo_video_in_isr(struct solo_dev *solo_dev)
67 wake_up_interruptible_all(&solo_dev->disp_thread_wait);
70 static void solo_win_setup(struct solo_dev *solo_dev, u8 ch,
71 int sx, int sy, int ex, int ey, int scale)
73 if (ch >= solo_dev->nr_chans)
76 /* Here, we just keep window/channel the same */
77 solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL0(ch),
78 SOLO_VI_WIN_CHANNEL(ch) |
81 SOLO_VI_WIN_SCALE(scale));
83 solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL1(ch),
88 static int solo_v4l2_ch_ext_4up(struct solo_dev *solo_dev, u8 idx, int on)
92 if (ch >= solo_dev->nr_chans)
98 for (i = ch; i < ch + 4; i++)
99 solo_win_setup(solo_dev, i, solo_dev->video_hsize,
100 solo_vlines(solo_dev),
101 solo_dev->video_hsize,
102 solo_vlines(solo_dev), 0);
107 solo_win_setup(solo_dev, ch, 0, 0, solo_dev->video_hsize / 2,
108 solo_vlines(solo_dev) / 2, 3);
109 solo_win_setup(solo_dev, ch + 1, solo_dev->video_hsize / 2, 0,
110 solo_dev->video_hsize, solo_vlines(solo_dev) / 2, 3);
112 solo_win_setup(solo_dev, ch + 2, 0, solo_vlines(solo_dev) / 2,
113 solo_dev->video_hsize / 2, solo_vlines(solo_dev), 3);
114 solo_win_setup(solo_dev, ch + 3, solo_dev->video_hsize / 2,
115 solo_vlines(solo_dev) / 2, solo_dev->video_hsize,
116 solo_vlines(solo_dev), 3);
121 static int solo_v4l2_ch_ext_16up(struct solo_dev *solo_dev, int on)
123 int sy, ysize, hsize, i;
126 for (i = 0; i < 16; i++)
127 solo_win_setup(solo_dev, i, solo_dev->video_hsize,
128 solo_vlines(solo_dev),
129 solo_dev->video_hsize,
130 solo_vlines(solo_dev), 0);
134 ysize = solo_vlines(solo_dev) / 4;
135 hsize = solo_dev->video_hsize / 4;
137 for (sy = 0, i = 0; i < 4; i++, sy += ysize) {
138 solo_win_setup(solo_dev, i * 4, 0, sy, hsize,
140 solo_win_setup(solo_dev, (i * 4) + 1, hsize, sy,
141 hsize * 2, sy + ysize, 5);
142 solo_win_setup(solo_dev, (i * 4) + 2, hsize * 2, sy,
143 hsize * 3, sy + ysize, 5);
144 solo_win_setup(solo_dev, (i * 4) + 3, hsize * 3, sy,
145 solo_dev->video_hsize, sy + ysize, 5);
151 static int solo_v4l2_ch(struct solo_dev *solo_dev, u8 ch, int on)
155 if (ch < solo_dev->nr_chans) {
156 solo_win_setup(solo_dev, ch, on ? 0 : solo_dev->video_hsize,
157 on ? 0 : solo_vlines(solo_dev),
158 solo_dev->video_hsize, solo_vlines(solo_dev),
163 if (ch >= solo_dev->nr_chans + solo_dev->nr_ext)
166 ext_ch = ch - solo_dev->nr_chans;
170 return solo_v4l2_ch_ext_4up(solo_dev, ext_ch, on);
172 /* Remaining case is 16up for 16-port */
173 return solo_v4l2_ch_ext_16up(solo_dev, on);
176 static int solo_v4l2_set_ch(struct solo_dev *solo_dev, u8 ch)
178 if (ch >= solo_dev->nr_chans + solo_dev->nr_ext)
183 solo_v4l2_ch(solo_dev, solo_dev->cur_disp_ch, 0);
184 solo_v4l2_ch(solo_dev, ch, 1);
186 solo_dev->cur_disp_ch = ch;
191 static void solo_fillbuf(struct solo_dev *solo_dev,
192 struct vb2_buffer *vb)
195 unsigned int fdma_addr;
199 vbuf = vb2_dma_contig_plane_dma_addr(vb, 0);
203 if (erase_off(solo_dev)) {
204 void *p = vb2_plane_vaddr(vb, 0);
205 int image_size = solo_image_size(solo_dev);
207 for (i = 0; i < image_size; i += 2) {
209 ((u8 *)p)[i + 1] = 0x00;
213 fdma_addr = SOLO_DISP_EXT_ADDR + (solo_dev->old_write *
214 (SOLO_HW_BPL * solo_vlines(solo_dev)));
216 error = solo_p2m_dma_t(solo_dev, 0, vbuf, fdma_addr,
217 solo_bytesperline(solo_dev),
218 solo_vlines(solo_dev), SOLO_HW_BPL);
223 vb2_set_plane_payload(vb, 0,
224 solo_vlines(solo_dev) * solo_bytesperline(solo_dev));
225 vb->v4l2_buf.sequence = solo_dev->sequence++;
226 v4l2_get_timestamp(&vb->v4l2_buf.timestamp);
229 vb2_buffer_done(vb, error ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
232 static void solo_thread_try(struct solo_dev *solo_dev)
234 struct solo_vb2_buf *vb;
236 /* Only "break" from this loop if slock is held, otherwise
239 unsigned int cur_write;
241 cur_write = SOLO_VI_STATUS0_PAGE(
242 solo_reg_read(solo_dev, SOLO_VI_STATUS0));
243 if (cur_write == solo_dev->old_write)
246 spin_lock(&solo_dev->slock);
248 if (list_empty(&solo_dev->vidq_active))
251 vb = list_first_entry(&solo_dev->vidq_active, struct solo_vb2_buf,
254 solo_dev->old_write = cur_write;
257 spin_unlock(&solo_dev->slock);
259 solo_fillbuf(solo_dev, &vb->vb);
262 assert_spin_locked(&solo_dev->slock);
263 spin_unlock(&solo_dev->slock);
266 static int solo_thread(void *data)
268 struct solo_dev *solo_dev = data;
269 DECLARE_WAITQUEUE(wait, current);
272 add_wait_queue(&solo_dev->disp_thread_wait, &wait);
275 long timeout = schedule_timeout_interruptible(HZ);
277 if (timeout == -ERESTARTSYS || kthread_should_stop())
279 solo_thread_try(solo_dev);
283 remove_wait_queue(&solo_dev->disp_thread_wait, &wait);
288 static int solo_start_thread(struct solo_dev *solo_dev)
292 solo_dev->kthread = kthread_run(solo_thread, solo_dev, SOLO6X10_NAME "_disp");
294 if (IS_ERR(solo_dev->kthread)) {
295 ret = PTR_ERR(solo_dev->kthread);
296 solo_dev->kthread = NULL;
299 solo_irq_on(solo_dev, SOLO_IRQ_VIDEO_IN);
304 static void solo_stop_thread(struct solo_dev *solo_dev)
306 if (!solo_dev->kthread)
309 solo_irq_off(solo_dev, SOLO_IRQ_VIDEO_IN);
310 kthread_stop(solo_dev->kthread);
311 solo_dev->kthread = NULL;
314 static int solo_queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
315 unsigned int *num_buffers, unsigned int *num_planes,
316 unsigned int sizes[], void *alloc_ctxs[])
318 struct solo_dev *solo_dev = vb2_get_drv_priv(q);
320 sizes[0] = solo_image_size(solo_dev);
321 alloc_ctxs[0] = solo_dev->alloc_ctx;
324 if (*num_buffers < MIN_VID_BUFFERS)
325 *num_buffers = MIN_VID_BUFFERS;
330 static int solo_start_streaming(struct vb2_queue *q, unsigned int count)
332 struct solo_dev *solo_dev = vb2_get_drv_priv(q);
334 solo_dev->sequence = 0;
335 return solo_start_thread(solo_dev);
338 static void solo_stop_streaming(struct vb2_queue *q)
340 struct solo_dev *solo_dev = vb2_get_drv_priv(q);
342 solo_stop_thread(solo_dev);
343 INIT_LIST_HEAD(&solo_dev->vidq_active);
346 static void solo_buf_queue(struct vb2_buffer *vb)
348 struct vb2_queue *vq = vb->vb2_queue;
349 struct solo_dev *solo_dev = vb2_get_drv_priv(vq);
350 struct solo_vb2_buf *solo_vb =
351 container_of(vb, struct solo_vb2_buf, vb);
353 spin_lock(&solo_dev->slock);
354 list_add_tail(&solo_vb->list, &solo_dev->vidq_active);
355 spin_unlock(&solo_dev->slock);
356 wake_up_interruptible(&solo_dev->disp_thread_wait);
359 static const struct vb2_ops solo_video_qops = {
360 .queue_setup = solo_queue_setup,
361 .buf_queue = solo_buf_queue,
362 .start_streaming = solo_start_streaming,
363 .stop_streaming = solo_stop_streaming,
364 .wait_prepare = vb2_ops_wait_prepare,
365 .wait_finish = vb2_ops_wait_finish,
368 static int solo_querycap(struct file *file, void *priv,
369 struct v4l2_capability *cap)
371 struct solo_dev *solo_dev = video_drvdata(file);
373 strcpy(cap->driver, SOLO6X10_NAME);
374 strcpy(cap->card, "Softlogic 6x10");
375 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
376 pci_name(solo_dev->pdev));
377 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |
378 V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
379 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
383 static int solo_enum_ext_input(struct solo_dev *solo_dev,
384 struct v4l2_input *input)
386 static const char * const dispnames_1[] = { "4UP" };
387 static const char * const dispnames_2[] = { "4UP-1", "4UP-2" };
388 static const char * const dispnames_5[] = {
389 "4UP-1", "4UP-2", "4UP-3", "4UP-4", "16UP"
391 const char * const *dispnames;
393 if (input->index >= (solo_dev->nr_chans + solo_dev->nr_ext))
396 if (solo_dev->nr_ext == 5)
397 dispnames = dispnames_5;
398 else if (solo_dev->nr_ext == 2)
399 dispnames = dispnames_2;
401 dispnames = dispnames_1;
403 snprintf(input->name, sizeof(input->name), "Multi %s",
404 dispnames[input->index - solo_dev->nr_chans]);
409 static int solo_enum_input(struct file *file, void *priv,
410 struct v4l2_input *input)
412 struct solo_dev *solo_dev = video_drvdata(file);
414 if (input->index >= solo_dev->nr_chans) {
415 int ret = solo_enum_ext_input(solo_dev, input);
420 snprintf(input->name, sizeof(input->name), "Camera %d",
423 /* We can only check this for normal inputs */
424 if (!tw28_get_video_status(solo_dev, input->index))
425 input->status = V4L2_IN_ST_NO_SIGNAL;
428 input->type = V4L2_INPUT_TYPE_CAMERA;
429 input->std = solo_dev->vfd->tvnorms;
433 static int solo_set_input(struct file *file, void *priv, unsigned int index)
435 struct solo_dev *solo_dev = video_drvdata(file);
436 int ret = solo_v4l2_set_ch(solo_dev, index);
439 while (erase_off(solo_dev))
446 static int solo_get_input(struct file *file, void *priv, unsigned int *index)
448 struct solo_dev *solo_dev = video_drvdata(file);
450 *index = solo_dev->cur_disp_ch;
455 static int solo_enum_fmt_cap(struct file *file, void *priv,
456 struct v4l2_fmtdesc *f)
461 f->pixelformat = V4L2_PIX_FMT_UYVY;
462 strlcpy(f->description, "UYUV 4:2:2 Packed", sizeof(f->description));
467 static int solo_try_fmt_cap(struct file *file, void *priv,
468 struct v4l2_format *f)
470 struct solo_dev *solo_dev = video_drvdata(file);
471 struct v4l2_pix_format *pix = &f->fmt.pix;
472 int image_size = solo_image_size(solo_dev);
474 if (pix->pixelformat != V4L2_PIX_FMT_UYVY)
477 pix->width = solo_dev->video_hsize;
478 pix->height = solo_vlines(solo_dev);
479 pix->sizeimage = image_size;
480 pix->field = V4L2_FIELD_INTERLACED;
481 pix->pixelformat = V4L2_PIX_FMT_UYVY;
482 pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
487 static int solo_set_fmt_cap(struct file *file, void *priv,
488 struct v4l2_format *f)
490 struct solo_dev *solo_dev = video_drvdata(file);
492 if (vb2_is_busy(&solo_dev->vidq))
495 /* For right now, if it doesn't match our running config,
497 return solo_try_fmt_cap(file, priv, f);
500 static int solo_get_fmt_cap(struct file *file, void *priv,
501 struct v4l2_format *f)
503 struct solo_dev *solo_dev = video_drvdata(file);
504 struct v4l2_pix_format *pix = &f->fmt.pix;
506 pix->width = solo_dev->video_hsize;
507 pix->height = solo_vlines(solo_dev);
508 pix->pixelformat = V4L2_PIX_FMT_UYVY;
509 pix->field = V4L2_FIELD_INTERLACED;
510 pix->sizeimage = solo_image_size(solo_dev);
511 pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
512 pix->bytesperline = solo_bytesperline(solo_dev);
518 static int solo_g_std(struct file *file, void *priv, v4l2_std_id *i)
520 struct solo_dev *solo_dev = video_drvdata(file);
522 if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC)
523 *i = V4L2_STD_NTSC_M;
529 int solo_set_video_type(struct solo_dev *solo_dev, bool is_50hz)
533 /* Make sure all video nodes are idle */
534 if (vb2_is_busy(&solo_dev->vidq))
536 for (i = 0; i < solo_dev->nr_chans; i++)
537 if (vb2_is_busy(&solo_dev->v4l2_enc[i]->vidq))
539 solo_dev->video_type = is_50hz ? SOLO_VO_FMT_TYPE_PAL :
540 SOLO_VO_FMT_TYPE_NTSC;
541 /* Reconfigure for the new standard */
542 solo_disp_init(solo_dev);
543 solo_enc_init(solo_dev);
544 solo_tw28_init(solo_dev);
545 for (i = 0; i < solo_dev->nr_chans; i++)
546 solo_update_mode(solo_dev->v4l2_enc[i]);
547 return solo_v4l2_set_ch(solo_dev, solo_dev->cur_disp_ch);
550 static int solo_s_std(struct file *file, void *priv, v4l2_std_id std)
552 struct solo_dev *solo_dev = video_drvdata(file);
554 return solo_set_video_type(solo_dev, std & V4L2_STD_625_50);
557 static int solo_s_ctrl(struct v4l2_ctrl *ctrl)
559 struct solo_dev *solo_dev =
560 container_of(ctrl->handler, struct solo_dev, disp_hdl);
563 case V4L2_CID_MOTION_TRACE:
565 solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER,
566 SOLO_VI_MOTION_Y_ADD |
567 SOLO_VI_MOTION_Y_VALUE(0x20) |
568 SOLO_VI_MOTION_CB_VALUE(0x10) |
569 SOLO_VI_MOTION_CR_VALUE(0x10));
570 solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR,
571 SOLO_VI_MOTION_CR_ADD |
572 SOLO_VI_MOTION_Y_VALUE(0x10) |
573 SOLO_VI_MOTION_CB_VALUE(0x80) |
574 SOLO_VI_MOTION_CR_VALUE(0x10));
576 solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER, 0);
577 solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR, 0);
586 static const struct v4l2_file_operations solo_v4l2_fops = {
587 .owner = THIS_MODULE,
588 .open = v4l2_fh_open,
589 .release = vb2_fop_release,
590 .read = vb2_fop_read,
591 .poll = vb2_fop_poll,
592 .mmap = vb2_fop_mmap,
593 .unlocked_ioctl = video_ioctl2,
596 static const struct v4l2_ioctl_ops solo_v4l2_ioctl_ops = {
597 .vidioc_querycap = solo_querycap,
598 .vidioc_s_std = solo_s_std,
599 .vidioc_g_std = solo_g_std,
600 /* Input callbacks */
601 .vidioc_enum_input = solo_enum_input,
602 .vidioc_s_input = solo_set_input,
603 .vidioc_g_input = solo_get_input,
604 /* Video capture format callbacks */
605 .vidioc_enum_fmt_vid_cap = solo_enum_fmt_cap,
606 .vidioc_try_fmt_vid_cap = solo_try_fmt_cap,
607 .vidioc_s_fmt_vid_cap = solo_set_fmt_cap,
608 .vidioc_g_fmt_vid_cap = solo_get_fmt_cap,
610 .vidioc_reqbufs = vb2_ioctl_reqbufs,
611 .vidioc_querybuf = vb2_ioctl_querybuf,
612 .vidioc_qbuf = vb2_ioctl_qbuf,
613 .vidioc_dqbuf = vb2_ioctl_dqbuf,
614 .vidioc_streamon = vb2_ioctl_streamon,
615 .vidioc_streamoff = vb2_ioctl_streamoff,
616 /* Logging and events */
617 .vidioc_log_status = v4l2_ctrl_log_status,
618 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
619 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
622 static struct video_device solo_v4l2_template = {
623 .name = SOLO6X10_NAME,
624 .fops = &solo_v4l2_fops,
625 .ioctl_ops = &solo_v4l2_ioctl_ops,
627 .release = video_device_release,
628 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL,
631 static const struct v4l2_ctrl_ops solo_ctrl_ops = {
632 .s_ctrl = solo_s_ctrl,
635 static const struct v4l2_ctrl_config solo_motion_trace_ctrl = {
636 .ops = &solo_ctrl_ops,
637 .id = V4L2_CID_MOTION_TRACE,
638 .name = "Motion Detection Trace",
639 .type = V4L2_CTRL_TYPE_BOOLEAN,
644 int solo_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
649 init_waitqueue_head(&solo_dev->disp_thread_wait);
650 spin_lock_init(&solo_dev->slock);
651 mutex_init(&solo_dev->lock);
652 INIT_LIST_HEAD(&solo_dev->vidq_active);
654 solo_dev->vfd = video_device_alloc();
658 *solo_dev->vfd = solo_v4l2_template;
659 solo_dev->vfd->v4l2_dev = &solo_dev->v4l2_dev;
660 solo_dev->vfd->queue = &solo_dev->vidq;
661 solo_dev->vfd->lock = &solo_dev->lock;
662 v4l2_ctrl_handler_init(&solo_dev->disp_hdl, 1);
663 v4l2_ctrl_new_custom(&solo_dev->disp_hdl, &solo_motion_trace_ctrl, NULL);
664 if (solo_dev->disp_hdl.error) {
665 ret = solo_dev->disp_hdl.error;
668 solo_dev->vfd->ctrl_handler = &solo_dev->disp_hdl;
670 video_set_drvdata(solo_dev->vfd, solo_dev);
672 solo_dev->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
673 solo_dev->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
674 solo_dev->vidq.ops = &solo_video_qops;
675 solo_dev->vidq.mem_ops = &vb2_dma_contig_memops;
676 solo_dev->vidq.drv_priv = solo_dev;
677 solo_dev->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
678 solo_dev->vidq.gfp_flags = __GFP_DMA32;
679 solo_dev->vidq.buf_struct_size = sizeof(struct solo_vb2_buf);
680 solo_dev->vidq.lock = &solo_dev->lock;
681 ret = vb2_queue_init(&solo_dev->vidq);
685 solo_dev->alloc_ctx = vb2_dma_contig_init_ctx(&solo_dev->pdev->dev);
686 if (IS_ERR(solo_dev->alloc_ctx)) {
687 dev_err(&solo_dev->pdev->dev, "Can't allocate buffer context");
688 return PTR_ERR(solo_dev->alloc_ctx);
691 /* Cycle all the channels and clear */
692 for (i = 0; i < solo_dev->nr_chans; i++) {
693 solo_v4l2_set_ch(solo_dev, i);
694 while (erase_off(solo_dev))
698 /* Set the default display channel */
699 solo_v4l2_set_ch(solo_dev, 0);
700 while (erase_off(solo_dev))
703 ret = video_register_device(solo_dev->vfd, VFL_TYPE_GRABBER, nr);
707 snprintf(solo_dev->vfd->name, sizeof(solo_dev->vfd->name), "%s (%i)",
708 SOLO6X10_NAME, solo_dev->vfd->num);
710 dev_info(&solo_dev->pdev->dev, "Display as /dev/video%d with "
711 "%d inputs (%d extended)\n", solo_dev->vfd->num,
712 solo_dev->nr_chans, solo_dev->nr_ext);
717 video_device_release(solo_dev->vfd);
718 vb2_dma_contig_cleanup_ctx(solo_dev->alloc_ctx);
719 v4l2_ctrl_handler_free(&solo_dev->disp_hdl);
720 solo_dev->vfd = NULL;
724 void solo_v4l2_exit(struct solo_dev *solo_dev)
726 if (solo_dev->vfd == NULL)
729 video_unregister_device(solo_dev->vfd);
730 vb2_dma_contig_cleanup_ctx(solo_dev->alloc_ctx);
731 v4l2_ctrl_handler_free(&solo_dev->disp_hdl);
732 solo_dev->vfd = NULL;