- 根目录:
- drivers
- staging
- solo6x10
- v4l2.c
/*
* Copyright (C) 2010 Bluecherry, LLC www.bluecherrydvr.com
* Copyright (C) 2010 Ben Collins <bcollins@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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#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/videobuf-dma-sg.h>
#include "solo6x10.h"
#include "tw28.h"
#define SOLO_HW_BPL 2048
#define SOLO_DISP_PIX_FIELD V4L2_FIELD_INTERLACED
/* Image size is two fields, SOLO_HW_BPL is one horizontal line */
#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 4
/* Simple file handle */
struct solo_filehandle {
struct solo_dev *solo_dev;
struct videobuf_queue vidq;
struct task_struct *kthread;
spinlock_t slock;
int old_write;
struct list_head vidq_active;
struct p2m_desc desc[SOLO_NR_P2M_DESC];
int desc_idx;
};
unsigned video_nr = -1;
module_param(video_nr, uint, 0644);
MODULE_PARM_DESC(video_nr, "videoX start number, -1 is autodetect (default)");
static 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 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)
{
solo_reg_write(solo_dev, SOLO_IRQ_STAT, SOLO_IRQ_VIDEO_IN);
wake_up_interruptible(&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 disp_reset_desc(struct solo_filehandle *fh)
{
/* We use desc mode, which ignores desc 0 */
memset(fh->desc, 0, sizeof(*fh->desc));
fh->desc_idx = 1;
}
static int disp_flush_descs(struct solo_filehandle *fh)
{
int ret;
if (!fh->desc_idx)
return 0;
ret = solo_p2m_dma_desc(fh->solo_dev, SOLO_P2M_DMA_ID_DISP,
fh->desc, fh->desc_idx);
disp_reset_desc(fh);
return ret;
}
static int disp_push_desc(struct solo_filehandle *fh, dma_addr_t dma_addr,
u32 ext_addr, int size, int repeat, int ext_size)
{
if (fh->desc_idx >= SOLO_NR_P2M_DESC) {
int ret = disp_flush_descs(fh);
if (ret)
return ret;
}
solo_p2m_push_desc(&fh->desc[fh->desc_idx], 0, dma_addr, ext_addr,
size, repeat, ext_size);
fh->desc_idx++;
return 0;
}
static void solo_fillbuf(struct solo_filehandle *fh,
struct videobuf_buffer *vb)
{
struct solo_dev *solo_dev = fh->solo_dev;
struct videobuf_dmabuf *vbuf;
unsigned int fdma_addr;
int error = 1;
int i;
struct scatterlist *sg;
dma_addr_t sg_dma;
int sg_size_left;
vbuf = videobuf_to_dma(vb);
if (!vbuf)
goto finish_buf;
if (erase_off(solo_dev)) {
int i;
/* Just blit to the entire sg list, ignoring size */
for_each_sg(vbuf->sglist, sg, vbuf->sglen, i) {
void *p = sg_virt(sg);
size_t len = sg_dma_len(sg);
for (i = 0; i < len; i += 2) {
((u8 *)p)[i] = 0x80;
((u8 *)p)[i + 1] = 0x00;
}
}
error = 0;
goto finish_buf;
}
disp_reset_desc(fh);
sg = vbuf->sglist;
sg_dma = sg_dma_address(sg);
sg_size_left = sg_dma_len(sg);
fdma_addr = SOLO_DISP_EXT_ADDR + (fh->old_write *
(SOLO_HW_BPL * solo_vlines(solo_dev)));
for (i = 0; i < solo_vlines(solo_dev); i++) {
int line_len = solo_bytesperline(solo_dev);
int lines;
if (!sg_size_left) {
sg = sg_next(sg);
if (sg == NULL)
goto finish_buf;
sg_dma = sg_dma_address(sg);
sg_size_left = sg_dma_len(sg);
}
/* No room for an entire line, so chunk it up */
if (sg_size_left < line_len) {
int this_addr = fdma_addr;
while (line_len > 0) {
int this_write;
if (!sg_size_left) {
sg = sg_next(sg);
if (sg == NULL)
goto finish_buf;
sg_dma = sg_dma_address(sg);
sg_size_left = sg_dma_len(sg);
}
this_write = min(sg_size_left, line_len);
if (disp_push_desc(fh, sg_dma, this_addr,
this_write, 0, 0))
goto finish_buf;
line_len -= this_write;
sg_size_left -= this_write;
sg_dma += this_write;
this_addr += this_write;
}
fdma_addr += SOLO_HW_BPL;
continue;
}
/* Shove as many lines into a repeating descriptor as possible */
lines = min(sg_size_left / line_len,
solo_vlines(solo_dev) - i);
if (disp_push_desc(fh, sg_dma, fdma_addr, line_len,
lines - 1, SOLO_HW_BPL))
goto finish_buf;
i += lines - 1;
fdma_addr += SOLO_HW_BPL * lines;
sg_dma += lines * line_len;
sg_size_left -= lines * line_len;
}
error = disp_flush_descs(fh);
finish_buf:
if (error) {
vb->state = VIDEOBUF_ERROR;
} else {
vb->size = solo_vlines(solo_dev) * solo_bytesperline(solo_dev);
vb->state = VIDEOBUF_DONE;
vb->field_count++;
do_gettimeofday(&vb->ts);
}
wake_up(&vb->done);
return;
}
static void solo_thread_try(struct solo_filehandle *fh)
{
struct videobuf_buffer *vb;
unsigned int cur_write;
for (;;) {
spin_lock(&fh->slock);
if (list_empty(&fh->vidq_active))
break;
vb = list_first_entry(&fh->vidq_active, struct videobuf_buffer,
queue);
if (!waitqueue_active(&vb->done))
break;
cur_write = SOLO_VI_STATUS0_PAGE(solo_reg_read(fh->solo_dev,
SOLO_VI_STATUS0));
if (cur_write == fh->old_write)
break;
fh->old_write = cur_write;
list_del(&vb->queue);
spin_unlock(&fh->slock);
solo_fillbuf(fh, vb);
}
assert_spin_locked(&fh->slock);
spin_unlock(&fh->slock);
}
static int solo_thread(void *data)
{
struct solo_filehandle *fh = data;
struct solo_dev *solo_dev = fh->solo_dev;
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(fh);
try_to_freeze();
}
remove_wait_queue(&solo_dev->disp_thread_wait, &wait);
return 0;
}
static int solo_start_thread(struct solo_filehandle *fh)
{
fh->kthread = kthread_run(solo_thread, fh, SOLO6X10_NAME "_disp");
if (IS_ERR(fh->kthread))
return PTR_ERR(fh->kthread);
return 0;
}
static void solo_stop_thread(struct solo_filehandle *fh)
{
if (fh->kthread) {
kthread_stop(fh->kthread);
fh->kthread = NULL;
}
}
static int solo_buf_setup(struct videobuf_queue *vq, unsigned int *count,
unsigned int *size)
{
struct solo_filehandle *fh = vq->priv_data;
struct solo_dev *solo_dev = fh->solo_dev;
*size = solo_image_size(solo_dev);
if (*count < MIN_VID_BUFFERS)
*count = MIN_VID_BUFFERS;
return 0;
}
static int solo_buf_prepare(struct videobuf_queue *vq,
struct videobuf_buffer *vb, enum v4l2_field field)
{
struct solo_filehandle *fh = vq->priv_data;
struct solo_dev *solo_dev = fh->solo_dev;
vb->size = solo_image_size(solo_dev);
if (vb->baddr != 0 && vb->bsize < vb->size)
return -EINVAL;
/* XXX: These properties only change when queue is idle */
vb->width = solo_dev->video_hsize;
vb->height = solo_vlines(solo_dev);
vb->bytesperline = solo_bytesperline(solo_dev);
vb->field = field;
if (vb->state == VIDEOBUF_NEEDS_INIT) {
int rc = videobuf_iolock(vq, vb, NULL);
if (rc < 0) {
struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
videobuf_dma_unmap(vq->dev, dma);
videobuf_dma_free(dma);
vb->state = VIDEOBUF_NEEDS_INIT;
return rc;
}
}
vb->state = VIDEOBUF_PREPARED;
return 0;
}
static void solo_buf_queue(struct videobuf_queue *vq,
struct videobuf_buffer *vb)
{
struct solo_filehandle *fh = vq->priv_data;
struct solo_dev *solo_dev = fh->solo_dev;
vb->state = VIDEOBUF_QUEUED;
list_add_tail(&vb->queue, &fh->vidq_active);
wake_up_interruptible(&solo_dev->disp_thread_wait);
}
static void solo_buf_release(struct videobuf_queue *vq,
struct videobuf_buffer *vb)
{
struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
videobuf_dma_unmap(vq->dev, dma);
videobuf_dma_free(dma);
vb->state = VIDEOBUF_NEEDS_INIT;
}
static struct videobuf_queue_ops solo_video_qops = {
.buf_setup = solo_buf_setup,
.buf_prepare = solo_buf_prepare,
.buf_queue = solo_buf_queue,
.buf_release = solo_buf_release,
};
static unsigned int solo_v4l2_poll(struct file *file,
struct poll_table_struct *wait)
{
struct solo_filehandle *fh = file->private_data;
return videobuf_poll_stream(file, &fh->vidq, wait);
}
static int solo_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
{
struct solo_filehandle *fh = file->private_data;
return videobuf_mmap_mapper(&fh->vidq, vma);
}
static int solo_v4l2_open(struct file *file)
{
struct solo_dev *solo_dev = video_drvdata(file);
struct solo_filehandle *fh;
int ret;
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
if (fh == NULL)
return -ENOMEM;
spin_lock_init(&fh->slock);
INIT_LIST_HEAD(&fh->vidq_active);
fh->solo_dev = solo_dev;
file->private_data = fh;
ret = solo_start_thread(fh);
if (ret) {
kfree(fh);
return ret;
}
videobuf_queue_sg_init(&fh->vidq, &solo_video_qops,
&solo_dev->pdev->dev, &fh->slock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
SOLO_DISP_PIX_FIELD,
sizeof(struct videobuf_buffer), fh, NULL);
return 0;
}
static ssize_t solo_v4l2_read(struct file *file, char __user *data,
size_t count, loff_t *ppos)
{
struct solo_filehandle *fh = file->private_data;
return videobuf_read_stream(&fh->vidq, data, count, ppos, 0,
file->f_flags & O_NONBLOCK);
}
static int solo_v4l2_release(struct file *file)
{
struct solo_filehandle *fh = file->private_data;
videobuf_stop(&fh->vidq);
videobuf_mmap_free(&fh->vidq);
solo_stop_thread(fh);
kfree(fh);
return 0;
}
static int solo_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct solo_filehandle *fh = priv;
struct solo_dev *solo_dev = fh->solo_dev;
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->version = SOLO6X10_VER_NUM;
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_READWRITE |
V4L2_CAP_STREAMING;
return 0;
}
static int solo_enum_ext_input(struct solo_dev *solo_dev,
struct v4l2_input *input)
{
static const char *dispnames_1[] = { "4UP" };
static const char *dispnames_2[] = { "4UP-1", "4UP-2" };
static const char *dispnames_5[] = {
"4UP-1", "4UP-2", "4UP-3", "4UP-4", "16UP"
};
const char **dispnames;
if (input->index >= (solo_dev->nr_chans + solo_dev->nr_ext))
return -EINVAL;
if (solo_dev->nr_ext == 5)
dispnames = dispnames_5;
else if (solo_dev->nr_ext == 2)
dispnames = dispnames_2;
else
dispnames = dispnames_1;
snprintf(input->name, sizeof(input->name), "Multi %s",
dispnames[input->index - solo_dev->nr_chans]);
return 0;
}
static int solo_enum_input(struct file *file, void *priv,
struct v4l2_input *input)
{
struct solo_filehandle *fh = priv;
struct solo_dev *solo_dev = fh->solo_dev;
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;
if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC)
input->std = V4L2_STD_NTSC_M;
else
input->std = V4L2_STD_PAL_B;
return 0;
}
static int solo_set_input(struct file *file, void *priv, unsigned int index)
{
struct solo_filehandle *fh = priv;
return solo_v4l2_set_ch(fh->solo_dev, index);
}
static int solo_get_input(struct file *file, void *priv, unsigned int *index)
{
struct solo_filehandle *fh = priv;
*index = fh->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_filehandle *fh = priv;
struct solo_dev *solo_dev = fh->solo_dev;
struct v4l2_pix_format *pix = &f->fmt.pix;
int image_size = solo_image_size(solo_dev);
/* Check supported sizes */
if (pix->width != solo_dev->video_hsize)
pix->width = solo_dev->video_hsize;
if (pix->height != solo_vlines(solo_dev))
pix->height = solo_vlines(solo_dev);
if (pix->sizeimage != image_size)
pix->sizeimage = image_size;
/* Check formats */
if (pix->field == V4L2_FIELD_ANY)
pix->field = SOLO_DISP_PIX_FIELD;
if (pix->pixelformat != V4L2_PIX_FMT_UYVY ||
pix->field != SOLO_DISP_PIX_FIELD ||
pix->colorspace != V4L2_COLORSPACE_SMPTE170M)
return -EINVAL;
return 0;
}
static int solo_set_fmt_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct solo_filehandle *fh = priv;
if (videobuf_queue_is_busy(&fh->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_filehandle *fh = priv;
struct solo_dev *solo_dev = fh->solo_dev;
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 = SOLO_DISP_PIX_FIELD;
pix->sizeimage = solo_image_size(solo_dev);
pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
pix->bytesperline = solo_bytesperline(solo_dev);
return 0;
}
static int solo_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *req)
{
struct solo_filehandle *fh = priv;
return videobuf_reqbufs(&fh->vidq, req);
}
static int solo_querybuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
struct solo_filehandle *fh = priv;
return videobuf_querybuf(&fh->vidq, buf);
}
static int solo_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
struct solo_filehandle *fh = priv;
return videobuf_qbuf(&fh->vidq, buf);
}
static int solo_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
struct solo_filehandle *fh = priv;
return videobuf_dqbuf(&fh->vidq, buf, file->f_flags & O_NONBLOCK);
}
static int solo_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
{
struct solo_filehandle *fh = priv;
if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
return videobuf_streamon(&fh->vidq);
}
static int solo_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
{
struct solo_filehandle *fh = priv;
if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
return videobuf_streamoff(&fh->vidq);
}
static int solo_s_std(struct file *file, void *priv, v4l2_std_id *i)
{
return 0;
}
static const u32 solo_motion_ctrls[] = {
V4L2_CID_MOTION_TRACE,
0
};
static const u32 *solo_ctrl_classes[] = {
solo_motion_ctrls,
NULL
};
static int solo_disp_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc)
{
qc->id = v4l2_ctrl_next(solo_ctrl_classes, qc->id);
if (!qc->id)
return -EINVAL;
switch (qc->id) {
#ifdef PRIVATE_CIDS
case V4L2_CID_MOTION_TRACE:
qc->type = V4L2_CTRL_TYPE_BOOLEAN;
qc->minimum = 0;
qc->maximum = qc->step = 1;
qc->default_value = 0;
strlcpy(qc->name, "Motion Detection Trace", sizeof(qc->name));
return 0;
#else
case V4L2_CID_MOTION_TRACE:
return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
#endif
}
return -EINVAL;
}
static int solo_disp_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct solo_filehandle *fh = priv;
struct solo_dev *solo_dev = fh->solo_dev;
switch (ctrl->id) {
case V4L2_CID_MOTION_TRACE:
ctrl->value = solo_reg_read(solo_dev, SOLO_VI_MOTION_BAR)
? 1 : 0;
return 0;
}
return -EINVAL;
}
static int solo_disp_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct solo_filehandle *fh = priv;
struct solo_dev *solo_dev = fh->solo_dev;
switch (ctrl->id) {
case V4L2_CID_MOTION_TRACE:
if (ctrl->value) {
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;
}
return -EINVAL;
}
static const struct v4l2_file_operations solo_v4l2_fops = {
.owner = THIS_MODULE,
.open = solo_v4l2_open,
.release = solo_v4l2_release,
.read = solo_v4l2_read,
.poll = solo_v4l2_poll,
.mmap = solo_v4l2_mmap,
.ioctl = video_ioctl2,
};
static const struct v4l2_ioctl_ops solo_v4l2_ioctl_ops = {
.vidioc_querycap = solo_querycap,
.vidioc_s_std = solo_s_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 = solo_reqbufs,
.vidioc_querybuf = solo_querybuf,
.vidioc_qbuf = solo_qbuf,
.vidioc_dqbuf = solo_dqbuf,
.vidioc_streamon = solo_streamon,
.vidioc_streamoff = solo_streamoff,
/* Controls */
.vidioc_queryctrl = solo_disp_queryctrl,
.vidioc_g_ctrl = solo_disp_g_ctrl,
.vidioc_s_ctrl = solo_disp_s_ctrl,
};
static 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_B,
.current_norm = V4L2_STD_NTSC_M,
};
int solo_v4l2_init(struct solo_dev *solo_dev)
{
int ret;
int i;
init_waitqueue_head(&solo_dev->disp_thread_wait);
solo_dev->vfd = video_device_alloc();
if (!solo_dev->vfd)
return -ENOMEM;
*solo_dev->vfd = solo_v4l2_template;
solo_dev->vfd->parent = &solo_dev->pdev->dev;
ret = video_register_device(solo_dev->vfd, VFL_TYPE_GRABBER, video_nr);
if (ret < 0) {
video_device_release(solo_dev->vfd);
solo_dev->vfd = NULL;
return ret;
}
video_set_drvdata(solo_dev->vfd, solo_dev);
snprintf(solo_dev->vfd->name, sizeof(solo_dev->vfd->name), "%s (%i)",
SOLO6X10_NAME, solo_dev->vfd->num);
if (video_nr != -1)
video_nr++;
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);
/* 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 */
solo_irq_on(solo_dev, SOLO_IRQ_VIDEO_IN);
return 0;
}
void solo_v4l2_exit(struct solo_dev *solo_dev)
{
solo_irq_off(solo_dev, SOLO_IRQ_VIDEO_IN);
if (solo_dev->vfd) {
video_unregister_device(solo_dev->vfd);
solo_dev->vfd = NULL;
}
}