/*
* si470x_fops_open - file open
*/
static int si470x_fops_open(struct inode *inode, struct file *file)
{
struct si470x_device *radio = video_get_drvdata(video_devdata(file));
int retval;
radio->users++;
retval = usb_autopm_get_interface(radio->intf);
if (retval < 0) {
radio->users--;
return -EIO;
}
if (radio->users == 1) {
retval = si470x_start(radio);
if (retval < 0)
usb_autopm_put_interface(radio->intf);
return retval;
}
return 0;
}
/* release the camera */
static int zr364xx_release(struct inode *inode, struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct zr364xx_camera *cam;
struct usb_device *udev;
int i, err;
DBG("zr364xx_release");
if (vdev == NULL)
return -ENODEV;
cam = video_get_drvdata(vdev);
udev = cam->udev;
mutex_lock(&cam->lock);
for (i = 0; i < 2; i++) {
err =
send_control_msg(udev, 1, init[cam->method][i].value,
0, init[i][cam->method].bytes,
init[cam->method][i].size);
if (err < 0) {
info("error during release sequence");
mutex_unlock(&cam->lock);
return err;
}
}
file->private_data = NULL;
video_exclusive_release(inode, file);
/* Added some delay here, since opening/closing the camera quickly,
* like Ekiga does during its startup, can crash the webcam
*/
mdelay(100);
mutex_unlock(&cam->lock);
return 0;
}
/*
* si470x_vidioc_s_tuner - set tuner attributes
*/
static int si470x_vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *tuner)
{
struct si470x_device *radio = video_get_drvdata(video_devdata(file));
int retval;
if (radio->disconnected)
return -EIO;
if (tuner->index > 0)
return -EINVAL;
if (tuner->audmode == V4L2_TUNER_MODE_MONO)
radio->registers[POWERCFG] |= POWERCFG_MONO; /* force mono */
else
radio->registers[POWERCFG] &= ~POWERCFG_MONO; /* try stereo */
retval = si470x_set_register(radio, POWERCFG);
if (retval < 0)
printk(KERN_WARNING DRIVER_NAME
": set tuner failed with %d\n", retval);
return retval;
}
static int
uvc_v4l2_release(struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct uvc_device *uvc = video_get_drvdata(vdev);
struct uvc_file_handle *handle = to_uvc_file_handle(file->private_data);
struct uvc_video *video = handle->device;
uvc_function_disconnect(uvc);
uvc_video_enable(video, 0);
mutex_lock(&video->queue.mutex);
if (uvc_free_buffers(&video->queue) < 0)
printk(KERN_ERR "uvc_v4l2_release: Unable to free "
"buffers.\n");
mutex_unlock(&video->queue.mutex);
file->private_data = NULL;
v4l2_fh_del(&handle->vfh);
v4l2_fh_exit(&handle->vfh);
kfree(handle);
return 0;
}
static int si4703_close(struct inode *inode, struct file *file)
{
struct si4703_device *chip = video_get_drvdata(video_devdata(file));
unset_radio_dvfm_constraint();
if (!chip) {
disable_oscc_tout_s0();
return -ENODEV;
}
if (si4703_power_down(chip))
printk(KERN_ERR "Radio did not shutdown properly");
chip->users = 0;
if (chip->removed)
kfree(chip);
/* disable clock */
disable_oscc_tout_s0();
return 0;
}
/*
* camif_release()
*/
static int camif_release(struct file *file)
{
struct video_device *vdev=file->private_data;
s3c2440camif_dev *pcam = (s3c2440camif_dev *)video_get_drvdata(vdev);
int ret=0;
if(pcam->state == CAMIF_STATE_PREVIEWING || pcam->state == CAMIF_STATE_CODECING)
{
pcam->cmdcode = CAMIF_CMD_STOP;
ret = wait_event_interruptible(pcam->cmdqueue, pcam->cmdcode == CAMIF_CMD_NONE);
}
clk_disable(pcam->clk); // stop camif clock
free_irq(IRQ_S3C2440_CAM_P, pcam); // free camif IRQs
free_irq(IRQ_S3C2440_CAM_C, pcam);
if(!static_allocate)
s3c2440camif_deallocate_frame_buf(pcam,S3C2440_FRAME_NUM);
return ret;
}
/*
* si470x_fops_release - file release
*/
static int si470x_fops_release(struct inode *inode, struct file *file)
{
struct si470x_device *radio = video_get_drvdata(video_devdata(file));
int retval;
if (!radio)
return -ENODEV;
radio->users--;
if (radio->users == 0) {
/* stop rds reception */
cancel_delayed_work_sync(&radio->work);
/* cancel read processes */
wake_up_interruptible(&radio->read_queue);
retval = si470x_stop(radio);
usb_autopm_put_interface(radio->intf);
return retval;
}
return 0;
}
/******************************************************************************
*
* cpia2_close
*
*****************************************************************************/
static int cpia2_close(struct file *file)
{
struct video_device *dev = video_devdata(file);
struct camera_data *cam = video_get_drvdata(dev);
mutex_lock(&cam->v4l2_lock);
if (video_is_registered(&cam->vdev) && v4l2_fh_is_singular_file(file)) {
cpia2_usb_stream_stop(cam);
/* save camera state for later open */
cpia2_save_camera_state(cam);
cpia2_set_low_power(cam);
cpia2_free_buffers(cam);
}
if (cam->stream_fh == file->private_data) {
cam->stream_fh = NULL;
cam->mmapped = 0;
}
mutex_unlock(&cam->v4l2_lock);
return v4l2_fh_release(file);
}
/*
* media_entity_operations
*/
static int nxp_link_setup(struct media_entity *entity,
const struct media_pad *local,
const struct media_pad *remote, u32 flags)
{
struct video_device *vdev = media_entity_to_video_device(entity);
struct nxp_video *me = video_get_drvdata(vdev);
pr_debug("%s: me type(%d)\n", __func__, me->type);
switch (local->index | media_entity_type(remote->entity)) {
case 0 | MEDIA_ENT_T_V4L2_SUBDEV:
/* capture, m2m : sink
* video : source
*/
pr_debug("local %d, link subdev\n", local->index);
break;
case 0 | MEDIA_ENT_T_DEVNODE:
pr_debug("local %d, link videodev\n", local->index);
break;
case 1 | MEDIA_ENT_T_V4L2_SUBDEV:
pr_debug("local %d, link subdev\n", local->index);
break;
case 1 | MEDIA_ENT_T_DEVNODE:
pr_debug("local %d, link videodev\n", local->index);
break;
}
if (flags & MEDIA_LNK_FL_ENABLED)
pr_debug("====> linked\n");
else
pr_debug("====> unlinked\n");
return 0;
}
static int atomisp_g_fmt_file(struct file *file, void *fh,
struct v4l2_format *f)
{
struct video_device *vdev = video_devdata(file);
struct atomisp_device *isp = video_get_drvdata(vdev);
struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
int ret;
if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
v4l2_err(&atomisp_dev,
"unsupported v4l2 buf type\n");
return -EINVAL;
}
memset(f, 0, sizeof(struct v4l2_format));
f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
switch (isp->sw_contex.output_mode) {
case OUTPUT_MODE_FILE:
f->fmt.pix.width = pipe->out_fmt->width;
f->fmt.pix.height = pipe->out_fmt->height;
f->fmt.pix.pixelformat = pipe->out_fmt->pixelformat;
f->fmt.pix.bytesperline = pipe->out_fmt->bytesperline;
f->fmt.pix.sizeimage = pipe->out_fmt->imagesize;
break;
case OUTPUT_MODE_TEXT:
f->fmt.pix.sizeimage = pipe->out_fmt->framesize;
break;
default:
v4l2_err(&atomisp_dev, "Unspported output mode\n");
ret = -EINVAL;
break;
}
return ret;
}
static int at91sam9x5_video_vidioc_s_fmt_vid_overlay(struct file *filp,
void *fh, struct v4l2_format *f)
{
struct video_device *vdev = filp->private_data;
struct at91sam9x5_video_priv *priv = video_get_drvdata(vdev);
struct v4l2_window *win = &f->fmt.win;
unsigned long flags;
if (f->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
return -EINVAL;
debug("rect=(%d,%d)+(%d,%d)\n",
win->w.left, win->w.top, win->w.width, win->w.height);
spin_lock_irqsave(&priv->lock, flags);
priv->fmt_vid_overlay = *win;
at91sam9x5_video_update_config(priv, 1);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
static int zr364xx_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct video_device *vdev = video_devdata(file);
struct zr364xx_camera *cam;
if (vdev == NULL)
return -ENODEV;
cam = video_get_drvdata(vdev);
if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG)
return -EINVAL;
if (f->fmt.pix.field != V4L2_FIELD_ANY &&
f->fmt.pix.field != V4L2_FIELD_NONE)
return -EINVAL;
f->fmt.pix.field = V4L2_FIELD_NONE;
f->fmt.pix.width = cam->width;
f->fmt.pix.height = cam->height;
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = 0;
f->fmt.pix.priv = 0;
return 0;
}
static int vidioc_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct si4703_device *chip = video_get_drvdata(video_devdata(file));
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
if (ctrl->value) {
if (si4703_mute(chip))
printk(KERN_ERR "si4703: no reponse");
} else {
if (si4703_unmute(chip))
printk(KERN_ERR "si4703: no reponse");
}
break;
case V4L2_CID_AUDIO_VOLUME:
si4703_setvol(chip, ctrl->value);
break;
default:
return -EINVAL;
}
return 0;
}
static int
uvc_v4l2_open(struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct uvc_device *uvc = video_get_drvdata(vdev);
struct uvc_file_handle *handle;
int ret;
handle = kzalloc(sizeof(*handle), GFP_KERNEL);
if (handle == NULL)
return -ENOMEM;
ret = v4l2_fh_init(&handle->vfh, vdev);
if (ret < 0)
goto error;
ret = v4l2_event_init(&handle->vfh);
if (ret < 0)
goto error;
ret = v4l2_event_alloc(&handle->vfh, 8);
if (ret < 0)
goto error;
v4l2_fh_add(&handle->vfh);
handle->device = &uvc->video;
file->private_data = &handle->vfh;
uvc_function_connect(uvc);
return 0;
error:
v4l2_fh_exit(&handle->vfh);
return ret;
}
static int zr364xx_vidioc_g_fmt_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct video_device *vdev = video_devdata(file);
struct zr364xx_camera *cam;
if (vdev == NULL)
return -ENODEV;
cam = video_get_drvdata(vdev);
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format));
f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
f->fmt.pix.pixelformat = V4L2_PIX_FMT_JPEG;
f->fmt.pix.field = V4L2_FIELD_NONE;
f->fmt.pix.width = cam->width;
f->fmt.pix.height = cam->height;
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = 0;
f->fmt.pix.priv = 0;
return 0;
}
/*
* This ioctl allows applications to enumerate all frame sizes that the
* device supports for the given pixel format.
* discrete means the applicatons should increase the index until EINVAL is
* returned.
* stepwise means the applications only need to set pixel_format, then
* driver will return maximum value and minimum value of frame size supported
* and step size.
*/
static int atomisp_enum_framesizes(struct file *file, void *fh,
struct v4l2_frmsizeenum *arg)
{
struct video_device *vdev = video_devdata(file);
struct atomisp_device *isp = video_get_drvdata(vdev);
struct v4l2_mbus_framefmt snr_mbus_fmt;
struct v4l2_streamparm sensor_parm;
struct atomisp_input_subdev *input;
unsigned int padding_w, padding_h;
int max_width, max_height, min_width, min_height;
int ret;
bool same_type;
u32 pixel_format;
if (arg->index != 0)
return -EINVAL;
if (!atomisp_is_pixelformat_supported(arg->pixel_format))
return -EINVAL;
input = &isp->inputs[isp->input_curr];
if (input->type != SOC_CAMERA && input->type != RAW_CAMERA)
return -EINVAL;
pixel_format = input->frame_size.pixel_format;
/*
* only judge if the pixel format and previous pixel format are
* the same type
*/
same_type = is_pixelformat_raw(pixel_format) ==
is_pixelformat_raw(arg->pixel_format);
/*
* when frame size is requested previously, we can get the value
* rapidly from cache.
*/
if (input->frame_size.pixel_format != 0 &&
same_type) {
memcpy(arg, &input->frame_size, sizeof(input->frame_size));
return 0;
}
/* get padding value via subdev type and requested isp pixelformat */
if (input->type == SOC_CAMERA || (input->type == RAW_CAMERA &&
is_pixelformat_raw(arg->pixel_format))) {
padding_h = 0;
padding_w = 0;
} else {
padding_h = pad_h;
padding_w = pad_w;
}
/* setting run mode to the sensor */
memset(&sensor_parm, 0, sizeof(sensor_parm));
sensor_parm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
sensor_parm.parm.capture.capturemode = CI_MODE_STILL_CAPTURE;
v4l2_subdev_call(input->camera, video, s_parm, &sensor_parm);
/* get the sensor max resolution supported */
snr_mbus_fmt.height = ATOM_ISP_MAX_HEIGHT;
snr_mbus_fmt.width = ATOM_ISP_MAX_WIDTH;
ret = v4l2_subdev_call(input->camera, video, try_mbus_fmt,
&snr_mbus_fmt);
if (ret < 0)
return ret;
max_width = snr_mbus_fmt.width - padding_w;
max_height = snr_mbus_fmt.height - padding_h;
/* app vs isp */
max_width = max_width - max_width % ATOM_ISP_STEP_WIDTH;
max_height = max_height - max_height % ATOM_ISP_STEP_HEIGHT;
max_width = clamp(max_width, ATOM_ISP_MIN_WIDTH, ATOM_ISP_MAX_WIDTH);
max_height = clamp(max_height, ATOM_ISP_MIN_HEIGHT,
ATOM_ISP_MAX_HEIGHT);
/* set the supported minimum resolution to sub-QCIF resolution */
min_width = ATOM_RESOLUTION_SUBQCIF_WIDTH;
min_height = ATOM_RESOLUTION_SUBQCIF_HEIGHT;
/* app vs isp */
min_width = min_width - min_width % ATOM_ISP_STEP_WIDTH;
min_height = min_height - min_height % ATOM_ISP_STEP_HEIGHT;
min_width = clamp(min_width, ATOM_ISP_MIN_WIDTH, ATOM_ISP_MAX_WIDTH);
min_height = clamp(min_height, ATOM_ISP_MIN_HEIGHT,
ATOM_ISP_MAX_HEIGHT);
arg->stepwise.max_width = max_width;
arg->stepwise.max_height = max_height;
arg->stepwise.min_width = min_width;
arg->stepwise.min_height = min_height;
arg->stepwise.step_width = ATOM_ISP_STEP_WIDTH;
arg->stepwise.step_height = ATOM_ISP_STEP_HEIGHT;
arg->type = V4L2_FRMSIZE_TYPE_STEPWISE;
/*
* store frame size in particular struct of every subdev,
* when enumerate frame size next,we can get it rapidly.
*/
memcpy(&input->frame_size, arg, sizeof(*arg));
return 0;
}
/*!
* V4L2 interface - ioctl function
*
* @param inode struct inode *
*
* @param file struct file *
*
* @param ioctlnr unsigned int
*
* @param arg void *
*
* @return 0 success, ENODEV for invalid device instance,
* -1 for other errors.
*/
static int
mxc_v4l2out_do_ioctl(struct inode *inode, struct file *file,
unsigned int ioctlnr, void *arg)
{
struct video_device *dev = file->private_data;
vout_data *vout = video_get_drvdata(dev);
int retval = 0;
int i = 0;
if (!vout)
return -ENODEV;
/* make this _really_ smp-safe */
if (down_interruptible(&vout->busy_lock))
return -EINTR;
switch (ioctlnr) {
case VIDIOC_QUERYCAP:
{
struct v4l2_capability *cap = arg;
strcpy(cap->driver, "mxc_v4l2_output");
cap->version = 0;
cap->capabilities =
V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
retval = 0;
break;
}
case VIDIOC_G_FMT:
{
struct v4l2_format *gf = arg;
retval = mxc_v4l2out_g_fmt(vout, gf);
break;
}
case VIDIOC_S_FMT:
{
struct v4l2_format *sf = arg;
if (vout->state != STATE_STREAM_OFF) {
retval = -EBUSY;
break;
}
retval = mxc_v4l2out_s_fmt(vout, sf);
break;
}
case VIDIOC_REQBUFS:
{
struct v4l2_requestbuffers *req = arg;
if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) ||
(req->memory != V4L2_MEMORY_MMAP)) {
DPRINTK
("VIDIOC_REQBUFS: incorrect buffer type\n");
retval = -EINVAL;
break;
}
if (req->count == 0) {
mxc_v4l2out_streamoff(vout);
if (vout->queue_buf_paddr[0] != 0) {
mxc_free_buffers(vout->queue_buf_paddr,
vout->buffer_cnt);
DPRINTK
("VIDIOC_REQBUFS: freed buffers\n");
}
vout->buffer_cnt = 0;
break;
}
if (vout->queue_buf_paddr[0] != 0) {
DPRINTK
("VIDIOC_REQBUFS: Cannot allocate buffers\n");
retval = -EBUSY;
break;
}
if (req->count < MIN_FRAME_NUM) {
req->count = MIN_FRAME_NUM;
} else if (req->count > MAX_FRAME_NUM) {
req->count = MAX_FRAME_NUM;
}
vout->buffer_cnt = req->count;
retval = mxc_allocate_buffers(vout->queue_buf_paddr,
vout->buffer_cnt,
PAGE_ALIGN(vout->v2f.fmt.
pix.
sizeimage));
if (retval < 0)
break;
/* Init buffer queues */
vout->done_q.head = 0;
vout->done_q.tail = 0;
vout->ready_q.head = 0;
vout->ready_q.tail = 0;
for (i = 0; i < vout->buffer_cnt; i++) {
memset(&(vout->v4l2_bufs[i]), 0,
sizeof(vout->v4l2_bufs[i]));
vout->v4l2_bufs[i].flags = 0;
vout->v4l2_bufs[i].memory = V4L2_MEMORY_MMAP;
vout->v4l2_bufs[i].index = i;
vout->v4l2_bufs[i].type =
V4L2_BUF_TYPE_VIDEO_OUTPUT;
vout->v4l2_bufs[i].length =
PAGE_ALIGN(vout->v2f.fmt.pix.sizeimage);
vout->v4l2_bufs[i].m.offset =
(unsigned long)vout->queue_buf_paddr[i];
vout->v4l2_bufs[i].timestamp.tv_sec = 0;
vout->v4l2_bufs[i].timestamp.tv_usec = 0;
}
break;
}
case VIDIOC_QUERYBUF:
{
struct v4l2_buffer *buf = arg;
u32 type = buf->type;
int index = buf->index;
if ((type != V4L2_BUF_TYPE_VIDEO_OUTPUT) ||
(index >= vout->buffer_cnt)) {
DPRINTK
("VIDIOC_QUERYBUFS: incorrect buffer type\n");
retval = -EINVAL;
break;
}
down(&vout->param_lock);
memcpy(buf, &(vout->v4l2_bufs[index]), sizeof(*buf));
up(&vout->param_lock);
break;
}
case VIDIOC_QBUF:
{
struct v4l2_buffer *buf = arg;
int index = buf->index;
u32 lock_flags;
if ((buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) ||
(index >= vout->buffer_cnt) || (buf->flags != 0)) {
retval = -EINVAL;
break;
}
DPRINTK("VIDIOC_QBUF: %d\n", buf->index);
spin_lock_irqsave(&g_lock, lock_flags);
memcpy(&(vout->v4l2_bufs[index]), buf, sizeof(*buf));
vout->v4l2_bufs[index].flags |= V4L2_BUF_FLAG_QUEUED;
g_buf_q_cnt++;
queue_buf(&vout->ready_q, index);
if (vout->state == STATE_STREAM_PAUSED) {
unsigned long timeout =
timeval_to_jiffies(&vout->v4l2_bufs[index].
timestamp);
if (!timeout) {
/* if timestamp is 0, then default to 30fps */
timeout = vout->start_jiffies +
msecs_to_jiffies(vout->frame_count *
33);
} else { /* Adjust time from time of day to jiffies */
timeout -= vout->start_tod_jiffies;
}
vout->output_timer.expires = timeout;
DPRINTK("QBUF: frame #%u timeout @ %u jiffies, "
"current = %u\n",
vout->frame_count, timeout, jiffies);
add_timer(&vout->output_timer);
vout->state = STATE_STREAM_ON;
vout->frame_count++;
}
spin_unlock_irqrestore(&g_lock, lock_flags);
break;
}
case VIDIOC_DQBUF:
{
struct v4l2_buffer *buf = arg;
int idx;
/* DPRINTK("VIDIOC_DQBUF: q size = %d\n",
queue_size(&vout->done_q));
*/
if ((queue_size(&vout->done_q) == 0) &&
(file->f_flags & O_NONBLOCK)) {
retval = -EAGAIN;
break;
}
if (!wait_event_interruptible_timeout(vout->v4l_bufq,
queue_size(&vout->
done_q)
!= 0, 2 * HZ)) {
printk("VIDIOC_DQBUF: timeout\n");
retval = -ETIME;
break;
} else if (signal_pending(current)) {
printk("VIDIOC_DQBUF: interrupt received\n");
vout->state = STATE_STREAM_STOPPING;
retval = -ERESTARTSYS;
break;
}
idx = dequeue_buf(&vout->done_q);
if (idx == -1) { /* No frame free */
printk
("VIDIOC_DQBUF: no free buffers, returning\n");
retval = -EAGAIN;
break;
}
if ((vout->v4l2_bufs[idx].flags & V4L2_BUF_FLAG_DONE) ==
0)
printk
("VIDIOC_DQBUF: buffer in done q, but not "
"flagged as done\n");
vout->v4l2_bufs[idx].flags = 0;
memcpy(buf, &(vout->v4l2_bufs[idx]), sizeof(*buf));
DPRINTK("VIDIOC_DQBUF: %d\n", buf->index);
break;
}
case VIDIOC_STREAMON:
{
struct timeval t;
do_gettimeofday(&t);
vout->start_tod_jiffies =
timeval_to_jiffies(&t) - jiffies;
vout->frame_count = 2;
vout->start_jiffies = jiffies;
DPRINTK("VIDIOC_STREAMON: start time = %u jiffies, "
"tod adjustment = %u\n",
vout->start_jiffies, vout->start_tod_jiffies);
retval = mxc_v4l2out_streamon(vout);
break;
}
case VIDIOC_STREAMOFF:
{
retval = mxc_v4l2out_streamoff(vout);
break;
}
case VIDIOC_G_CTRL:
{
retval = mxc_get_v42lout_control(vout, arg);
break;
}
case VIDIOC_S_CTRL:
{
retval = mxc_set_v42lout_control(vout, arg);
break;
}
case VIDIOC_CROPCAP:
{
struct v4l2_cropcap *cap = arg;
if (cap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
retval = -EINVAL;
break;
}
cap->bounds = vout->crop_bounds[vout->cur_disp_output];
cap->defrect = vout->crop_bounds[vout->cur_disp_output];
retval = 0;
break;
}
case VIDIOC_G_CROP:
{
struct v4l2_crop *crop = arg;
if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
retval = -EINVAL;
break;
}
crop->c = vout->crop_current;
break;
}
case VIDIOC_S_CROP:
{
struct v4l2_crop *crop = arg;
struct v4l2_rect *b =
&(vout->crop_bounds[vout->cur_disp_output]);
if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
retval = -EINVAL;
break;
}
if (crop->c.height < 0) {
retval = -EINVAL;
break;
}
if (crop->c.width < 0) {
retval = -EINVAL;
break;
}
if (crop->c.top < b->top)
crop->c.top = b->top;
if (crop->c.top > b->top + b->height)
crop->c.top = b->top + b->height;
if (crop->c.height > b->top - crop->c.top + b->height)
crop->c.height =
b->top - crop->c.top + b->height;
if (crop->c.left < b->left)
crop->c.top = b->left;
if (crop->c.left > b->left + b->width)
crop->c.top = b->left + b->width;
if (crop->c.width > b->left - crop->c.left + b->width)
crop->c.width =
b->left - crop->c.left + b->width;
/* stride line limitation */
crop->c.height -= crop->c.height % 8;
crop->c.width -= crop->c.width % 8;
vout->crop_current = crop->c;
vout->sdc_fg_buf_size = vout->crop_current.width *
vout->crop_current.height;
vout->sdc_fg_buf_size *=
fmt_to_bpp(SDC_FG_FB_FORMAT) / 8;
/* Free previously allocated buffer */
if (vout->display_bufs[0] != NULL) {
mxc_free_buffers(vout->display_bufs, 2);
}
if ((retval = mxc_allocate_buffers(vout->display_bufs,
2,
vout->
sdc_fg_buf_size)) <
0) {
DPRINTK("unable to allocate SDC FG buffers\n");
retval = -ENOMEM;
break;
}
break;
}
case VIDIOC_ENUMOUTPUT:
{
struct v4l2_output *output = arg;
if ((output->index >= 4) ||
(vout->output_enabled[output->index] == false)) {
retval = -EINVAL;
break;
}
if (output->index < 3) {
*output = mxc_outputs[MXC_V4L2_OUT_2_ADC];
output->name[4] = '0' + output->index;
} else {
*output = mxc_outputs[MXC_V4L2_OUT_2_SDC];
}
break;
}
case VIDIOC_G_OUTPUT:
{
int *p_output_num = arg;
*p_output_num = vout->cur_disp_output;
break;
}
case VIDIOC_S_OUTPUT:
{
int *p_output_num = arg;
if ((*p_output_num >= 4) ||
(vout->output_enabled[*p_output_num] == false)) {
retval = -EINVAL;
break;
}
if (vout->state != STATE_STREAM_OFF) {
retval = -EBUSY;
break;
}
vout->cur_disp_output = *p_output_num;
break;
}
case VIDIOC_ENUM_FMT:
case VIDIOC_TRY_FMT:
case VIDIOC_QUERYCTRL:
case VIDIOC_G_PARM:
case VIDIOC_ENUMSTD:
case VIDIOC_G_STD:
case VIDIOC_S_STD:
case VIDIOC_G_TUNER:
case VIDIOC_S_TUNER:
case VIDIOC_G_FREQUENCY:
case VIDIOC_S_FREQUENCY:
default:
retval = -EINVAL;
break;
}
up(&vout->busy_lock);
return retval;
}
static long
uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
{
struct video_device *vdev = video_devdata(file);
struct uvc_device *uvc = video_get_drvdata(vdev);
struct uvc_file_handle *handle = to_uvc_file_handle(file->private_data);
struct usb_composite_dev *cdev = uvc->func.config->cdev;
struct uvc_video *video = &uvc->video;
int ret = 0;
switch (cmd) {
/* Query capabilities */
case VIDIOC_QUERYCAP:
{
struct v4l2_capability *cap = arg;
memset(cap, 0, sizeof *cap);
strncpy(cap->driver, "g_uvc", sizeof(cap->driver));
strncpy(cap->card, cdev->gadget->name, sizeof(cap->card));
strncpy(cap->bus_info, dev_name(&cdev->gadget->dev),
sizeof cap->bus_info);
cap->version = DRIVER_VERSION_NUMBER;
cap->capabilities = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
break;
}
/* Get & Set format */
case VIDIOC_G_FMT:
{
struct v4l2_format *fmt = arg;
if (fmt->type != video->queue.type)
return -EINVAL;
return uvc_v4l2_get_format(video, fmt);
}
case VIDIOC_S_FMT:
{
struct v4l2_format *fmt = arg;
if (fmt->type != video->queue.type)
return -EINVAL;
return uvc_v4l2_set_format(video, fmt);
}
/* Buffers & streaming */
case VIDIOC_REQBUFS:
{
struct v4l2_requestbuffers *rb = arg;
if (rb->type != video->queue.type ||
rb->memory != V4L2_MEMORY_MMAP)
return -EINVAL;
ret = uvc_alloc_buffers(&video->queue, rb->count,
video->imagesize);
if (ret < 0)
return ret;
rb->count = ret;
ret = 0;
break;
}
case VIDIOC_QUERYBUF:
{
struct v4l2_buffer *buf = arg;
if (buf->type != video->queue.type)
return -EINVAL;
return uvc_query_buffer(&video->queue, buf);
}
case VIDIOC_QBUF:
if ((ret = uvc_queue_buffer(&video->queue, arg)) < 0)
return ret;
return uvc_video_pump(video);
case VIDIOC_DQBUF:
return uvc_dequeue_buffer(&video->queue, arg,
file->f_flags & O_NONBLOCK);
case VIDIOC_STREAMON:
{
int *type = arg;
if (*type != video->queue.type)
return -EINVAL;
return uvc_video_enable(video, 1);
}
case VIDIOC_STREAMOFF:
{
int *type = arg;
if (*type != video->queue.type)
return -EINVAL;
return uvc_video_enable(video, 0);
}
/* Events */
case VIDIOC_DQEVENT:
{
struct v4l2_event *event = arg;
ret = v4l2_event_dequeue(&handle->vfh, event,
file->f_flags & O_NONBLOCK);
if (ret == 0 && event->type == UVC_EVENT_SETUP) {
struct uvc_event *uvc_event = (void *)&event->u.data;
/* Tell the complete callback to generate an event for
* the next request that will be enqueued by
* uvc_event_write.
*/
uvc->event_setup_out =
!(uvc_event->req.bRequestType & USB_DIR_IN);
uvc->event_length = uvc_event->req.wLength;
}
return ret;
}
case VIDIOC_SUBSCRIBE_EVENT:
{
struct v4l2_event_subscription *sub = arg;
if (sub->type < UVC_EVENT_FIRST || sub->type > UVC_EVENT_LAST)
return -EINVAL;
return v4l2_event_subscribe(&handle->vfh, arg, 2, NULL);
}
case VIDIOC_UNSUBSCRIBE_EVENT:
return v4l2_event_unsubscribe(&handle->vfh, arg);
case UVCIOC_SEND_RESPONSE:
ret = uvc_send_response(uvc, arg);
break;
default:
return -ENOIOCTLCMD;
}
return ret;
}
/*
* Initiate Memory Mapping or User Pointer I/O
*/
int atomisp_reqbufs(struct file *file, void *fh,
struct v4l2_requestbuffers *req)
{
struct video_device *vdev = video_devdata(file);
struct atomisp_device *isp = video_get_drvdata(vdev);
struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
struct sh_css_frame_info out_info, vf_info;
struct sh_css_frame *frame;
struct videobuf_vmalloc_memory *vm_mem;
int ret = 0, i = 0;
if (req->count == 0) {
atomisp_videobuf_free(&pipe->capq);
if ((!isp->isp_subdev.video_out_vf.opened) &&
(isp->vf_frame)) {
sh_css_frame_free(isp->vf_frame);
isp->vf_frame = NULL;
}
return 0;
}
if ((!pipe->is_main) && (!atomisp_is_viewfinder_support(isp)))
return -EINVAL;
ret = videobuf_reqbufs(&pipe->capq, req);
if (ret)
return ret;
switch (isp->sw_contex.run_mode) {
case CI_MODE_STILL_CAPTURE:
if (isp->main_format->out_sh_fmt != SH_CSS_FRAME_FORMAT_RAW) {
if (sh_css_capture_get_viewfinder_frame_info(&vf_info))
goto error;
if ((!isp->isp_subdev.video_out_vf.opened) &&
(sh_css_frame_allocate_from_info(&isp->vf_frame,
&vf_info)))
goto error;
}
if (sh_css_capture_get_output_frame_info(&out_info))
goto error;
break;
case CI_MODE_VIDEO:
if (sh_css_video_get_viewfinder_frame_info(&vf_info))
goto error;
if ((!isp->isp_subdev.video_out_vf.opened) &&
(sh_css_frame_allocate_from_info(&isp->vf_frame, &vf_info)))
goto error;
if (sh_css_video_get_output_frame_info(&out_info))
goto error;
break;
case CI_MODE_PREVIEW:
if (sh_css_preview_get_output_frame_info(&out_info))
goto error;
break;
default:
return -EINVAL;
}
/*
* for user pointer type, buffers are not really allcated here,
* buffers are setup in QBUF operation through v4l2_buffer structure
*/
if (req->memory == V4L2_MEMORY_USERPTR) {
v4l2_info(&atomisp_dev,
"user pointer, not really allocate"
" memory here.\n");
return 0;
}
if (!pipe->is_main)
/*
* Allocate the real frame here for preview node using our
* memery management function
*/
for (i = 0; i < req->count; i++) {
if (sh_css_frame_allocate_from_info(&frame, &vf_info))
goto error;
vm_mem = pipe->capq.bufs[i]->priv;
vm_mem->vaddr = frame;
}
else
/*
* Allocate the real frame here for capture node using our
* memery management function
*/
for (i = 0; i < req->count; i++) {
if (sh_css_frame_allocate_from_info(&frame, &out_info))
goto error;
vm_mem = pipe->capq.bufs[i]->priv;
vm_mem->vaddr = frame;
}
return ret;
error:
while (i--) {
vm_mem = pipe->capq.bufs[i]->priv;
sh_css_frame_free(vm_mem->vaddr);
}
if (isp->vf_frame)
sh_css_frame_free(isp->vf_frame);
return -ENOMEM;
}
static int fimc_open(struct file *filp)
{
struct fimc_control *ctrl;
struct s3c_platform_fimc *pdata;
unsigned long flags;
int ret;
u32 cfg;
#ifdef VIEW_FUNCTION_CALL
printk("[FIMC_DEV] %s(%d)\n", __func__, __LINE__);
#endif
/* An ugly hack to make the i2c pins output low */
if (unlikely(make_i2c_pin_low == 1)) {
cfg = readl(S5P64XX_GPD1DAT);
cfg &= ~(0x1 << 0);
writel(cfg, S5P64XX_GPD1DAT);
cfg = readl(S5P64XX_GPD1DAT);
cfg &= ~(0x1 << 1);
writel(cfg, S5P64XX_GPD1DAT);
make_i2c_pin_low = 0;
}
ctrl = video_get_drvdata(video_devdata(filp));
#ifdef S5P6442_POWER_GATING_CAM
del_timer(&g_fimc_domain_timer);
// fimc0 controller for Camera
if(ctrl->id == CAM_ID){
spin_lock_irqsave(&fimc_domain_lock, flags);
gFIMC_CNT[CAM_ID]++;
s5p6442_idle_pm_gpiocfg(S5P6442_CAM_ID, S5P6442_ACTIVE_MODE);
s5p6442_pwrgate_config(S5P6442_CAM_ID, S5P6442_ACTIVE_MODE);
spin_unlock_irqrestore(&fimc_domain_lock, flags);
}
// gFIMC_CNT++;
// }
#endif
#ifdef CONFIG_CPU_FREQ
if(ctrl->id == CAM_ID){
set_dvfs_level(0);
}
#endif /* CONFIG_CPU_FREQ */
pdata = to_fimc_plat(ctrl->dev);
mutex_lock(&ctrl->lock);
if (atomic_read(&ctrl->in_use)) {
ret = -EBUSY;
goto resource_busy;
} else {
atomic_inc(&ctrl->in_use);
}
if (pdata->clk_on)
pdata->clk_on(to_platform_device(ctrl->dev), ctrl->clk);
/* Apply things to interface register */
fimc_hwset_reset(ctrl);
filp->private_data = ctrl;
ctrl->fb.open_fifo = s3cfb_open_fifo;
ctrl->fb.close_fifo = s3cfb_close_fifo;
ret = s3cfb_direct_ioctl(ctrl->id, S3CFB_GET_LCD_WIDTH,
(unsigned long)&ctrl->fb.lcd_hres);
if (ret < 0)
dev_err(ctrl->dev, "Fail: S3CFB_GET_LCD_WIDTH\n");
ret = s3cfb_direct_ioctl(ctrl->id, S3CFB_GET_LCD_HEIGHT,
(unsigned long)&ctrl->fb.lcd_vres);
if (ret < 0)
dev_err(ctrl->dev, "Fail: S3CFB_GET_LCD_HEIGHT\n");
ctrl->status = FIMC_STREAMOFF;
#if 0
/* To do : have to send ctrl to the fimd driver. */
ret = s3cfb_direct_ioctl(ctrl->id, S3CFB_SET_SUSPEND_FIFO,
(unsigned long)fimc_sleep);
if (ret < 0)
dev_err(ctrl->dev,
"s3cfb_direct_ioctl(S3CFB_SET_SUSPEND_FIFO) fail\n");
ret = s3cfb_direct_ioctl(ctrl->id, S3CFB_SET_RESUME_FIFO,
(unsigned long)fimc_wakeup);
if (ret < 0)
dev_err(ctrl->dev,
"s3cfb_direct_ioctl(S3CFB_SET_SUSPEND_FIFO) fail\n");
#endif
mutex_unlock(&ctrl->lock);
return 0;
resource_busy:
mutex_unlock(&ctrl->lock);
return ret;
}
long atomisp_compat_ioctl32(struct file *file,
unsigned int cmd, unsigned long arg)
{
struct video_device *vdev = video_devdata(file);
struct atomisp_device *isp = video_get_drvdata(vdev);
long ret = -ENOIOCTLCMD;
if (!file->f_op->unlocked_ioctl)
return ret;
switch (cmd) {
case ATOMISP_IOC_G_XNR:
case ATOMISP_IOC_S_XNR:
case ATOMISP_IOC_G_NR:
case ATOMISP_IOC_S_NR:
case ATOMISP_IOC_G_TNR:
case ATOMISP_IOC_S_TNR:
case ATOMISP_IOC_G_BLACK_LEVEL_COMP:
case ATOMISP_IOC_S_BLACK_LEVEL_COMP:
case ATOMISP_IOC_G_EE:
case ATOMISP_IOC_S_EE:
case ATOMISP_IOC_S_DIS_VECTOR:
case ATOMISP_IOC_G_ISP_PARM:
case ATOMISP_IOC_S_ISP_PARM:
case ATOMISP_IOC_G_ISP_GAMMA:
case ATOMISP_IOC_S_ISP_GAMMA:
case ATOMISP_IOC_ISP_MAKERNOTE:
case ATOMISP_IOC_G_ISP_MACC:
case ATOMISP_IOC_S_ISP_MACC:
case ATOMISP_IOC_G_ISP_BAD_PIXEL_DETECTION:
case ATOMISP_IOC_S_ISP_BAD_PIXEL_DETECTION:
case ATOMISP_IOC_G_ISP_FALSE_COLOR_CORRECTION:
case ATOMISP_IOC_S_ISP_FALSE_COLOR_CORRECTION:
case ATOMISP_IOC_G_ISP_CTC:
case ATOMISP_IOC_S_ISP_CTC:
case ATOMISP_IOC_G_ISP_WHITE_BALANCE:
case ATOMISP_IOC_S_ISP_WHITE_BALANCE:
case ATOMISP_IOC_CAMERA_BRIDGE:
case ATOMISP_IOC_G_SENSOR_MODE_DATA:
case ATOMISP_IOC_S_BINNING_SUM:
case ATOMISP_IOC_S_EXPOSURE:
case ATOMISP_IOC_G_3A_CONFIG:
case ATOMISP_IOC_S_3A_CONFIG:
case ATOMISP_IOC_ACC_UNLOAD:
case ATOMISP_IOC_ACC_START:
case ATOMISP_IOC_ACC_WAIT:
case ATOMISP_IOC_ACC_ABORT:
case ATOMISP_IOC_G_ISP_GAMMA_CORRECTION:
case ATOMISP_IOC_S_ISP_GAMMA_CORRECTION:
case ATOMISP_IOC_S_CONT_CAPTURE_CONFIG:
ret = native_ioctl(file, cmd, arg);
break;
case ATOMISP_IOC_G_HISTOGRAM32:
case ATOMISP_IOC_S_HISTOGRAM32:
case ATOMISP_IOC_G_DIS_STAT32:
case ATOMISP_IOC_S_DIS_COEFS32:
case ATOMISP_IOC_S_DIS_VECTOR32:
case ATOMISP_IOC_G_3A_STAT32:
case ATOMISP_IOC_G_ISP_GDC_TAB32:
case ATOMISP_IOC_S_ISP_GDC_TAB32:
case ATOMISP_IOC_S_ISP_FPN_TABLE32:
case ATOMISP_IOC_G_ISP_OVERLAY32:
case ATOMISP_IOC_S_ISP_OVERLAY32:
case ATOMISP_IOC_G_SENSOR_CALIBRATION_GROUP32:
case ATOMISP_IOC_ACC_LOAD32:
case ATOMISP_IOC_ACC_S_ARG32:
case ATOMISP_IOC_G_SENSOR_PRIV_INT_DATA32:
case ATOMISP_IOC_S_ISP_SHD_TAB32:
case ATOMISP_IOC_ACC_DESTAB32:
case ATOMISP_IOC_G_MOTOR_PRIV_INT_DATA32:
case ATOMISP_IOC_ACC_MAP32:
case ATOMISP_IOC_ACC_UNMAP32:
case ATOMISP_IOC_ACC_S_MAPPED_ARG32:
case ATOMISP_IOC_S_PARAMETERS32:
case ATOMISP_IOC_ACC_LOAD_TO_PIPE32:
ret = atomisp_do_compat_ioctl(file, cmd, arg);
break;
default:
dev_warn(isp->dev,
"%s: unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
__func__, _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd),
cmd);
break;
}
return ret;
}
static int vloopback_mmap(struct file *f, struct vm_area_struct *vma)
{
struct video_device *loopdev=video_devdata(f);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
priv_ptr ptr=(priv_ptr)video_get_drvdata(loopdev);
#else
priv_ptr ptr=(priv_ptr)loopdev->priv;
#endif
int nr=ptr->pipenr;
unsigned long start = (unsigned long)vma->vm_start;
long size = vma->vm_end - vma->vm_start;
unsigned long page, pos;
down(&loops[nr]->lock);
if (ptr->in) {
loops[nr]->zerocopy=1;
if (loops[nr]->ropen) {
info("Can't change size while opened for read");
up(&loops[nr]->lock);
return -EINVAL;
}
if (!size) {
up(&loops[nr]->lock);
return -EINVAL;
}
if (loops[nr]->buffer)
rvfree(loops[nr]->buffer, loops[nr]->buflength*N_BUFFS);
loops[nr]->buflength=size;
loops[nr]->buffer=rvmalloc(loops[nr]->buflength*N_BUFFS);
}
if (loops[nr]->buffer == NULL) {
up(&loops[nr]->lock);
return -EINVAL;
}
if (size > (((N_BUFFS * loops[nr]->buflength) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))) {
up(&loops[nr]->lock);
return -EINVAL;
}
pos = (unsigned long)loops[nr]->buffer;
while (size > 0) {
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9)
page = kvirt_to_pa(pos);
if (remap_page_range(vma,start, page, PAGE_SIZE, PAGE_SHARED)) {
#else
page = vmalloc_to_pfn((void *)pos);
if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
#endif
up(&loops[nr]->lock);
return -EAGAIN;
}
start += PAGE_SIZE;
pos += PAGE_SIZE;
size -= PAGE_SIZE;
}
up(&loops[nr]->lock);
return 0;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
static long vloopback_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
#else
static int vloopback_ioctl(struct inode *inod, struct file *f, unsigned int cmd, unsigned long arg)
#endif
{
struct video_device *loopdev=video_devdata(f);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
priv_ptr ptr=(priv_ptr)video_get_drvdata(loopdev);
#else
priv_ptr ptr=(priv_ptr)loopdev->priv;
#endif
int nr=ptr->pipenr;
int i;
if (loops[nr]->zerocopy) {
if (!ptr->in) {
loops[nr]->ioctlnr=cmd;
loops[nr]->ioctllength=_IOC_SIZE(cmd);
/* info("DEBUG: vl_ioctl: !loop->in"); */
/* info("DEBUG: vl_ioctl: cmd %lu", cmd); */
/* info("DEBUG: vl_ioctl: len %lu", loops[nr]->ioctllength); */
if(copy_from_user(loops[nr]->ioctldata, (void*)arg, _IOC_SIZE(cmd)))
return -EFAULT;
kill_proc(loops[nr]->pid, SIGIO, 1);
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
wait_event_interruptible(loops[nr]->wait, loops[nr]->ioctlnr==-1);
#else
interruptible_sleep_on(&loops[nr]->wait);
#endif
if (loops[nr]->invalid_ioctl) {
//info ("DEBUG: There was an invalid ioctl");
loops[nr]->invalid_ioctl = 0;
return -ENOTTY;
}
if (cmd & IOC_IN && !(cmd & IOC_OUT)) {
//info("DEBUG: vl_ioctl: cmd & IOC_IN 1");
if (memcmp(loops[nr]->ioctlretdata, loops[nr]->ioctldata, _IOC_SIZE(cmd))) {
return -EINVAL;
}
//info("DEBUG: vl_ioctl: cmd & IOC_IN 2");
return 0;
} else {
if (copy_to_user((void*)arg, loops[nr]->ioctlretdata, _IOC_SIZE(cmd)))
return -EFAULT;
//info("DEBUG: vl_ioctl: !(cmd & IOC_IN) 1");
return 0;
}
} else {
if ( (loops[nr]->ioctlnr!=cmd) && (cmd != (VIDIOCSINVALID))) {
/* wrong ioctl */
info("DEBUG: vo_ioctl: Wrong IOCTL");
return 0;
}
if (cmd == VIDIOCSINVALID) {
loops[nr]->invalid_ioctl = 1;
} else {
if (copy_from_user(loops[nr]->ioctlretdata, (void*)arg, loops[nr]->ioctllength))
return -EFAULT;
}
loops[nr]->ioctlnr=-1;
if (waitqueue_active(&loops[nr]->wait))
wake_up(&loops[nr]->wait);
return 0;
}
}
switch(cmd)
{
/* Get capabilities */
case VIDIOCGCAP:
{
struct video_capability b;
if (ptr->in) {
sprintf(b.name, "Video loopback %d input",
ptr->pipenr);
b.type = 0;
} else {
sprintf(b.name, "Video loopback %d output",
ptr->pipenr);
b.type = VID_TYPE_CAPTURE;
}
b.channels=1;
b.audios=0;
b.maxwidth=loops[nr]->width;
b.maxheight=loops[nr]->height;
b.minwidth=20;
b.minheight=20;
if(copy_to_user((void*)arg, &b, sizeof(b)))
return -EFAULT;
return 0;
}
/* Get channel info (sources) */
case VIDIOCGCHAN:
{
struct video_channel v;
if(copy_from_user(&v, (void*)arg, sizeof(v)))
return -EFAULT;
if(v.channel!=0) {
info("VIDIOCGCHAN: Invalid Channel, was %d", v.channel);
v.channel=0;
//return -EINVAL;
}
v.flags=0;
v.tuners=0;
v.norm=0;
v.type = VIDEO_TYPE_CAMERA;
/*strcpy(v.name, "Loopback"); -- tibit */
strcpy(v.name, "Composite1");
if(copy_to_user((void*)arg, &v, sizeof(v)))
return -EFAULT;
return 0;
}
/* Set channel */
case VIDIOCSCHAN:
{
int v;
if(copy_from_user(&v, (void*)arg, sizeof(v)))
return -EFAULT;
if(v!=0) {
info("VIDIOCSCHAN: Invalid Channel, was %d", v);
return -EINVAL;
}
return 0;
}
/* Get tuner abilities */
case VIDIOCGTUNER:
{
struct video_tuner v;
if(copy_from_user(&v, (void*)arg, sizeof(v))!=0)
return -EFAULT;
if(v.tuner) {
info("VIDIOCGTUNER: Invalid Tuner, was %d", v.tuner);
return -EINVAL;
}
strcpy(v.name, "Format");
v.rangelow=0;
v.rangehigh=0;
v.flags=0;
v.mode=VIDEO_MODE_AUTO;
if(copy_to_user((void*)arg,&v, sizeof(v))!=0)
return -EFAULT;
return 0;
}
/* Get picture properties */
case VIDIOCGPICT:
{
struct video_picture p;
p.colour=0x8000;
p.hue=0x8000;
p.brightness=0x8000;
p.contrast=0x8000;
p.whiteness=0x8000;
p.depth=0x8000;
p.palette=loops[nr]->palette;
if(copy_to_user((void*)arg, &p, sizeof(p)))
return -EFAULT;
return 0;
}
/* Set picture properties */
case VIDIOCSPICT:
{
struct video_picture p;
if(copy_from_user(&p, (void*)arg, sizeof(p)))
return -EFAULT;
if (!ptr->in) {
if (p.palette!=loops[nr]->palette)
return -EINVAL;
} else
loops[nr]->palette=p.palette;
return 0;
}
/* Get the video overlay window */
case VIDIOCGWIN:
{
struct video_window vw;
vw.x=0;
vw.y=0;
vw.width=loops[nr]->width;
vw.height=loops[nr]->height;
vw.chromakey=0;
vw.flags=0;
vw.clipcount=0;
if(copy_to_user((void*)arg, &vw, sizeof(vw)))
return -EFAULT;
return 0;
}
/* Set the video overlay window - passes clip list for hardware smarts , chromakey etc */
case VIDIOCSWIN:
{
struct video_window vw;
if(copy_from_user(&vw, (void*)arg, sizeof(vw)))
return -EFAULT;
if(vw.flags)
return -EINVAL;
if(vw.clipcount)
return -EINVAL;
if (loops[nr]->height==vw.height &&
loops[nr]->width==vw.width)
return 0;
if(!ptr->in) {
return -EINVAL;
} else {
loops[nr]->height=vw.height;
loops[nr]->width=vw.width;
/* Make sure nobody is using the buffer while we
fool around with it.
We are also not allowing changes while
somebody using mmap has the output open.
*/
down(&loops[nr]->lock);
if (loops[nr]->ropen) {
info("Can't change size while opened for read");
up(&loops[nr]->lock);
return -EINVAL;
}
if (loops[nr]->buffer)
rvfree(loops[nr]->buffer, loops[nr]->buflength*N_BUFFS);
loops[nr]->buflength=vw.width*vw.height*4;
loops[nr]->buffer=rvmalloc(loops[nr]->buflength*N_BUFFS);
up(&loops[nr]->lock);
}
return 0;
}
/* Memory map buffer info */
case VIDIOCGMBUF:
{
struct video_mbuf vm;
vm.size=loops[nr]->buflength*N_BUFFS;
vm.frames=N_BUFFS;
for (i=0; i<vm.frames; i++)
vm.offsets[i]=i*loops[nr]->buflength;
if(copy_to_user((void*)arg, &vm, sizeof(vm)))
return -EFAULT;
return 0;
}
/* Grab frames */
case VIDIOCMCAPTURE:
{
struct video_mmap vm;
if (ptr->in)
return -EINVAL;
if (!loops[nr]->buffer)
return -EINVAL;
if (copy_from_user(&vm, (void*)arg, sizeof(vm)))
return -EFAULT;
if (vm.format!=loops[nr]->palette)
return -EINVAL;
if (vm.frame > N_BUFFS)
return -EINVAL;
return 0;
}
/* Sync with mmap grabbing */
case VIDIOCSYNC:
{
int frame;
unsigned long fw;
if (copy_from_user((void *)&frame, (void*)arg, sizeof(int)))
return -EFAULT;
if (ptr->in)
return -EINVAL;
if (!loops[nr]->buffer)
return -EINVAL;
/* Ok, everything should be alright since the program
should have called VIDIOMCAPTURE and we are ready to
do the 'capturing' */
if (frame > 1)
return -EINVAL;
loops[nr]->frame=frame;
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
fw = loops[nr]->frameswrite;
wait_event_interruptible(loops[nr]->wait, fw!=loops[nr]->frameswrite);
#else
interruptible_sleep_on(&loops[nr]->wait);
#endif
if (!loops[nr]->buffer) /* possibly released during sleep */
return -EINVAL;
loops[nr]->framesread++;
return 0;
}
/* Get attached units */
case VIDIOCGUNIT:
{
struct video_unit vu;
if (ptr->in)
vu.video=loops[nr]->vloopout->minor;
else
vu.video=loops[nr]->vloopin->minor;
vu.vbi=VIDEO_NO_UNIT;
vu.radio=VIDEO_NO_UNIT;
vu.audio=VIDEO_NO_UNIT;
vu.teletext=VIDEO_NO_UNIT;
if (copy_to_user((void*)arg, &vu, sizeof(vu)))
return -EFAULT;
return 0;
}
/* Get frame buffer */
case VIDIOCGFBUF:
{
struct video_buffer vb;
memset(&vb, 0, sizeof(vb));
vb.base=NULL;
if(copy_to_user((void *)arg, (void *)&vb, sizeof(vb)))
return -EFAULT;
return 0;
}
/* Start, end capture */
case VIDIOCCAPTURE:
{
int start;
if (copy_from_user(&start, (void*)arg, sizeof(int)))
return -EFAULT;
/*
if (start) info ("Capture started");
else info ("Capture stopped");
*/
return 0;
}
case VIDIOCGFREQ:
case VIDIOCSFREQ:
case VIDIOCGAUDIO:
case VIDIOCSAUDIO:
return -EINVAL;
case VIDIOCKEY:
return 0;
default:
return -ENOTTY;
//return -ENOIOCTLCMD;
}
return 0;
}
static unsigned int vloopback_poll(struct file *f, struct poll_table_struct *wait)
{
struct video_device *loopdev=video_devdata(f);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
priv_ptr ptr=(priv_ptr)video_get_drvdata(loopdev);
#else
priv_ptr ptr=(priv_ptr)loopdev->priv;
#endif
int nr=ptr->pipenr;
if (loopdev==NULL)
return -EFAULT;
if (!ptr->in)
return 0;
if (loops[nr]->ioctlnr!=-1) {
if (loops[nr]->zerocopy) {
return (POLLIN | POLLPRI | POLLOUT | POLLRDNORM);
} else {
return (POLLOUT);
}
}
return 0;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
static struct v4l2_file_operations fileops_template=
#else
static struct file_operations fileops_template=
#endif
{
owner: THIS_MODULE,
open: vloopback_open,
release: vloopback_release,
read: vloopback_read,
write: vloopback_write,
poll: vloopback_poll,
ioctl: vloopback_ioctl,
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,15) && defined(CONFIG_COMPAT)
compat_ioctl: v4l_compat_ioctl32,
#endif
mmap: vloopback_mmap,
};
static ssize_t vloopback_read (struct file * f, char * buf, size_t count, loff_t *offset)
{
struct video_device *loopdev=video_devdata(f);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
priv_ptr ptr=(priv_ptr)video_get_drvdata(loopdev);
#else
priv_ptr ptr=(priv_ptr)loopdev->priv;
#endif
int nr=ptr->pipenr;
unsigned long realcount=count;
if (loops[nr]->zerocopy) {
if (ptr->in) {
if (realcount > loops[nr]->ioctllength+sizeof(unsigned long int))
realcount=loops[nr]->ioctllength+sizeof(unsigned long int);
if (copy_to_user(buf , &loops[nr]->ioctlnr, sizeof(unsigned long int)))
return -EFAULT;
if (copy_to_user(buf+sizeof(unsigned long int) , loops[nr]->ioctldata,
realcount-sizeof(unsigned long int)))
return -EFAULT;
if (loops[nr]->ioctlnr==0)
loops[nr]->ioctlnr=-1;
return realcount;
} else {
struct video_window vidwin;
struct video_mmap vidmmap;
struct video_picture vidpic;
fake_ioctl(nr, VIDIOCGWIN, &vidwin);
fake_ioctl(nr, VIDIOCGPICT, &vidpic);
vidmmap.height=vidwin.height;
vidmmap.width=vidwin.width;
vidmmap.format=vidpic.palette;
vidmmap.frame=0;
if (fake_ioctl(nr, VIDIOCMCAPTURE, &vidmmap))
return 0;
if (fake_ioctl(nr, VIDIOCSYNC, &vidmmap))
return 0;
realcount=vidwin.height*vidwin.width*vidpic.depth;
}
}
if (ptr->in)
return -EINVAL;
if (realcount > loops[nr]->buflength) {
realcount = loops[nr]->buflength;
info("Not so much data in buffer!");
}
loops[nr]->pendingread = 1;
wake_up(&loops[nr]->wait);
if (!loops[nr]->zerocopy) {
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
unsigned long fw=loops[nr]->frameswrite;
wait_event_interruptible(loops[nr]->wait, fw!=loops[nr]->frameswrite);
#else
interruptible_sleep_on(&loops[nr]->wait);
#endif
}
loops[nr]->pendingread = 0;
down(&loops[nr]->lock);
if (!loops[nr]->buffer) {
up(&loops[nr]->lock);
return 0;
}
if (copy_to_user(buf, loops[nr]->buffer, realcount))
return -EFAULT;
up(&loops[nr]->lock);
loops[nr]->framesread++;
return realcount;
}
static int create_pipe(int nr)
{
int minor_in, minor_out , ret;
if (dev_offset == -1) {
if (inminor == -1) {
minor_in = -1;
} else {
minor_in = inminor+nr;
}
if (outminor == -1) {
minor_out = -1;
} else {
minor_out = outminor+nr;
}
} else {
minor_in = 2*nr + dev_offset;
minor_out = 2*nr+1 + dev_offset;
}
/* allocate space for this pipe */
loops[nr]= kmalloc(sizeof(struct vloopback_pipe), GFP_KERNEL);
if (!loops[nr])
return -ENOMEM;
/* set up a new video device plus our private area */
loops[nr]->vloopin= video_device_alloc();
if (loops[nr]->vloopin == NULL)
return -ENOMEM;
*loops[nr]->vloopin = vloopback_template;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
video_set_drvdata(loops[nr]->vloopin,kmalloc(sizeof(struct vloopback_private),GFP_KERNEL));
#else
loops[nr]->vloopin->priv= kmalloc(sizeof(struct vloopback_private),GFP_KERNEL);
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
if ((priv_ptr)video_get_drvdata(loops[nr]->vloopin) == NULL) {
#else
if (loops[nr]->vloopin->priv == NULL) {
#endif
kfree(loops[nr]->vloopin);
return -ENOMEM;
}
/* repeat for the output device */
loops[nr]->vloopout= video_device_alloc();
if (loops[nr]->vloopout == NULL) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
kfree((priv_ptr)video_get_drvdata(loops[nr]->vloopin));
#else
kfree(loops[nr]->vloopin->priv);
#endif
kfree(loops[nr]->vloopin);
return -ENOMEM;
}
*loops[nr]->vloopout = vloopback_template;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
video_set_drvdata(loops[nr]->vloopout,kmalloc(sizeof(struct vloopback_private),GFP_KERNEL));
#else
loops[nr]->vloopout->priv= kmalloc(sizeof(struct vloopback_private),GFP_KERNEL);
#endif
if ((priv_ptr)video_get_drvdata(loops[nr]->vloopout) == NULL) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
kfree((priv_ptr)video_get_drvdata(loops[nr]->vloopin));
#else
kfree(loops[nr]->vloopin->priv);
#endif
kfree(loops[nr]->vloopin);
kfree(loops[nr]->vloopout);
return -ENOMEM;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
((priv_ptr)video_get_drvdata(loops[nr]->vloopin))->pipenr=nr;
((priv_ptr)video_get_drvdata(loops[nr]->vloopout))->pipenr=nr;
#else
((priv_ptr)loops[nr]->vloopin->priv)->pipenr=nr;
((priv_ptr)loops[nr]->vloopout->priv)->pipenr=nr;
#endif
loops[nr]->invalid_ioctl = 0; /* tibit */
loops[nr]->buffer=NULL;
loops[nr]->width=0;
loops[nr]->height=0;
loops[nr]->palette=0;
loops[nr]->frameswrite=0;
loops[nr]->framesread=0;
loops[nr]->framesdumped=0;
loops[nr]->wopen=0;
loops[nr]->ropen=0;
loops[nr]->frame=0;
loops[nr]->pendingread=0;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
((priv_ptr)video_get_drvdata(loops[nr]->vloopin))->in=1;
((priv_ptr)video_get_drvdata(loops[nr]->vloopout))->in=0;
#else
((priv_ptr)loops[nr]->vloopin->priv)->in=1;
((priv_ptr)loops[nr]->vloopout->priv)->in=0;
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
loops[nr]->vloopin->type=0;
#endif
sprintf(loops[nr]->vloopin->name, "Video loopback %d input", nr);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
loops[nr]->vloopout->type=VID_TYPE_CAPTURE;
#endif
sprintf(loops[nr]->vloopout->name, "Video loopback %d output", nr);
init_waitqueue_head(&loops[nr]->wait);
init_MUTEX(&loops[nr]->lock);
ret = video_register_device(loops[nr]->vloopout, VFL_TYPE_GRABBER, minor_out);
if ((ret ==-1) || (ret == -23)) {
info("error registering device %s", loops[nr]->vloopout->name);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
kfree(((priv_ptr)video_get_drvdata(loops[nr]->vloopin)));
video_unregister_device(loops[nr]->vloopin);
kfree(((priv_ptr)video_get_drvdata(loops[nr]->vloopout)));
#else
kfree(loops[nr]->vloopin->priv);
video_unregister_device(loops[nr]->vloopin);
kfree(loops[nr]->vloopout->priv);
#endif
kfree(loops[nr]->vloopout);
kfree(loops[nr]);
loops[nr]=NULL;
return ret;
}
ret = video_register_device(loops[nr]->vloopin, VFL_TYPE_GRABBER, minor_in);
if ((ret == -1 ) || ( ret == -23 )) {
info("error registering device %s",loops[nr]->vloopin->name);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
kfree(((priv_ptr)video_get_drvdata(loops[nr]->vloopin)));
kfree(((priv_ptr)video_get_drvdata(loops[nr]->vloopout)));
#else
kfree(loops[nr]->vloopin->priv);
kfree(loops[nr]->vloopout->priv);
#endif
kfree(loops[nr]->vloopin);
kfree(loops[nr]->vloopout);
kfree(loops[nr]);
loops[nr]=NULL;
return ret;
}
loops[nr]->ioctldata=kmalloc(1024, GFP_KERNEL);
loops[nr]->ioctlretdata=kmalloc(1024, GFP_KERNEL);
return 0;
}
/****************************************************************************
* init stuff
****************************************************************************/
MODULE_AUTHOR("J.B. Vreeken ([email protected])");
MODULE_DESCRIPTION("Video4linux loopback device.");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(pipes, int, 000);
#else
MODULE_PARM(pipes, "i");
#endif
MODULE_PARM_DESC(pipes, "Nr of pipes to create (each pipe uses two video devices)");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(spares, int, 000);
#else
MODULE_PARM(spares, "i");
#endif
MODULE_PARM_DESC(spares, "Nr of spare pipes that should be created");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(dev_offset, int, 000);
#else
MODULE_PARM(dev_offset_param, "i");
#endif
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(inminor, int, 000);
#else
MODULE_PARM(inminor, "i");
#endif
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(outminor, int, 000);
#else
MODULE_PARM(outminor, "i");
#endif
MODULE_PARM_DESC(dev_offset, "Prefered offset for video device numbers");
MODULE_LICENSE("GPL");
MODULE_VERSION( VLOOPBACK_VERSION );
static int __init vloopback_init(void)
{
int i,ret;
info("Video4linux loopback driver v"VLOOPBACK_VERSION);
if (pipes==-1) pipes=1;
if (pipes > MAX_PIPES) {
pipes=MAX_PIPES;
info("Nr of pipes is limited to: %d", MAX_PIPES);
}
for (i=0; i<pipes; i++) {
ret = create_pipe(i);
if (ret == 0) {
info("Loopback %d registered, input: video%d, output: video%d",
i, loops[i]->vloopin->minor,
loops[i]->vloopout->minor);
nr_o_pipes=i+1;
}else{
return ret;
}
}
return 0;
}
static int ivtv_open(struct file *filp)
{
struct video_device *vdev = video_devdata(filp);
struct ivtv_stream *s = video_get_drvdata(vdev);
struct ivtv *itv = s->itv;
struct ivtv_open_id *item;
int res = 0;
IVTV_DEBUG_FILE("open %s\n", s->name);
if (ivtv_init_on_first_open(itv)) {
IVTV_ERR("Failed to initialize on device %s\n",
video_device_node_name(vdev));
return -ENXIO;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
/* Unless ivtv_fw_debug is set, error out if firmware dead. */
if (ivtv_fw_debug) {
IVTV_WARN("Opening %s with dead firmware lockout disabled\n",
video_device_node_name(vdev));
IVTV_WARN("Selected firmware errors will be ignored\n");
} else {
#else
if (1) {
#endif
res = ivtv_firmware_check(itv, "ivtv_serialized_open");
if (res == -EAGAIN)
res = ivtv_firmware_check(itv, "ivtv_serialized_open");
if (res < 0)
return -EIO;
}
if (s->type == IVTV_DEC_STREAM_TYPE_MPG &&
test_bit(IVTV_F_S_CLAIMED, &itv->streams[IVTV_DEC_STREAM_TYPE_YUV].s_flags))
return -EBUSY;
if (s->type == IVTV_DEC_STREAM_TYPE_YUV &&
test_bit(IVTV_F_S_CLAIMED, &itv->streams[IVTV_DEC_STREAM_TYPE_MPG].s_flags))
return -EBUSY;
if (s->type == IVTV_DEC_STREAM_TYPE_YUV) {
if (read_reg(0x82c) == 0) {
IVTV_ERR("Tried to open YUV output device but need to send data to mpeg decoder before it can be used\n");
/* return -ENODEV; */
}
ivtv_udma_alloc(itv);
}
/* Allocate memory */
item = kzalloc(sizeof(struct ivtv_open_id), GFP_KERNEL);
if (NULL == item) {
IVTV_DEBUG_WARN("nomem on v4l2 open\n");
return -ENOMEM;
}
v4l2_fh_init(&item->fh, &s->vdev);
item->itv = itv;
item->type = s->type;
filp->private_data = &item->fh;
v4l2_fh_add(&item->fh);
if (item->type == IVTV_ENC_STREAM_TYPE_RAD &&
v4l2_fh_is_singular_file(filp)) {
if (!test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) {
if (atomic_read(&itv->capturing) > 0) {
/* switching to radio while capture is
in progress is not polite */
v4l2_fh_del(&item->fh);
v4l2_fh_exit(&item->fh);
kfree(item);
return -EBUSY;
}
}
/* Mark that the radio is being used. */
set_bit(IVTV_F_I_RADIO_USER, &itv->i_flags);
/* We have the radio */
ivtv_mute(itv);
/* Switch tuner to radio */
ivtv_call_all(itv, tuner, s_radio);
/* Select the correct audio input (i.e. radio tuner) */
ivtv_audio_set_io(itv);
if (itv->hw_flags & IVTV_HW_SAA711X) {
ivtv_call_hw(itv, IVTV_HW_SAA711X, video, s_crystal_freq,
SAA7115_FREQ_32_11_MHZ, SAA7115_FREQ_FL_APLL);
}
/* Done! Unmute and continue. */
ivtv_unmute(itv);
}
/* YUV or MPG Decoding Mode? */
if (s->type == IVTV_DEC_STREAM_TYPE_MPG) {
clear_bit(IVTV_F_I_DEC_YUV, &itv->i_flags);
} else if (s->type == IVTV_DEC_STREAM_TYPE_YUV) {
set_bit(IVTV_F_I_DEC_YUV, &itv->i_flags);
/* For yuv, we need to know the dma size before we start */
itv->dma_data_req_size =
1080 * ((itv->yuv_info.v4l2_src_h + 31) & ~31);
itv->yuv_info.stream_size = 0;
}
return 0;
}
int ivtv_v4l2_open(struct file *filp)
{
struct video_device *vdev = video_devdata(filp);
int res;
if (mutex_lock_interruptible(vdev->lock))
return -ERESTARTSYS;
res = ivtv_open(filp);
mutex_unlock(vdev->lock);
return res;
}
void ivtv_mute(struct ivtv *itv)
{
if (atomic_read(&itv->capturing))
ivtv_vapi(itv, CX2341X_ENC_MUTE_AUDIO, 1, 1);
IVTV_DEBUG_INFO("Mute\n");
}
void ivtv_unmute(struct ivtv *itv)
{
if (atomic_read(&itv->capturing)) {
ivtv_msleep_timeout(100, 0);
ivtv_vapi(itv, CX2341X_ENC_MISC, 1, 12);
ivtv_vapi(itv, CX2341X_ENC_MUTE_AUDIO, 1, 0);
}
IVTV_DEBUG_INFO("Unmute\n");
}
/*
* Applications call the VIDIOC_QBUF ioctl to enqueue an empty (capturing) or
* filled (output) buffer in the drivers incoming queue.
*/
static int atomisp_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
{
struct video_device *vdev = video_devdata(file);
struct atomisp_device *isp = video_get_drvdata(vdev);
struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
unsigned long userptr = buf->m.userptr;
struct videobuf_buffer *vb;
struct videobuf_vmalloc_memory *vm_mem;
struct sh_css_frame_info out_info, vf_info;
struct sh_css_frame *handle = NULL;
u32 length;
u32 pgnr;
int ret = 0;
if ((!pipe->is_main) &&
(!atomisp_is_viewfinder_support(isp)))
return -EINVAL;
if (!buf || buf->index >= VIDEO_MAX_FRAME ||
!pipe->capq.bufs[buf->index]) {
v4l2_err(&atomisp_dev,
"Invalid index for qbuf.\n");
return -EINVAL;
}
v4l2_dbg(2, dbg_level, &atomisp_dev, "%s\n", __func__);
/*
* For userptr type frame, we convert user space address to physic
* address and reprograme out page table properly
*/
if (buf->memory == V4L2_MEMORY_USERPTR) {
vb = pipe->capq.bufs[buf->index];
vm_mem = vb->priv;
if (!vm_mem)
return -EINVAL;
length = vb->bsize;
pgnr = (length + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
/* We must stop to atomisp to remove the
* race condition when updating the new userptr. */
if (buf->flags & V4L2_BUF_FLAG_BUFFER_INVALID) {
isp->sw_contex.updating_uptr = true;
return 0;
}
/* Check whether need to start the atomisp_work */
if (buf->flags & V4L2_BUF_FLAG_BUFFER_VALID) {
isp->sw_contex.updating_uptr = false;
wake_up_interruptible_sync(&pipe->capq.wait);
return 0;
}
if ((vb->baddr == userptr) && (vm_mem->vaddr))
goto done;
switch (isp->sw_contex.run_mode) {
case CI_MODE_STILL_CAPTURE:
if ((isp->main_format->out_sh_fmt !=
SH_CSS_FRAME_FORMAT_RAW) &&
sh_css_capture_get_viewfinder_frame_info(&vf_info))
goto error;
if (sh_css_capture_get_output_frame_info(&out_info))
goto error;
break;
case CI_MODE_VIDEO:
if (sh_css_video_get_viewfinder_frame_info(&vf_info))
goto error;
if (sh_css_video_get_output_frame_info(&out_info))
goto error;
break;
case CI_MODE_PREVIEW:
if (sh_css_preview_get_output_frame_info(&out_info))
goto error;
break;
}
hrt_isp_css_mm_set_user_ptr(userptr, pgnr);
if (!pipe->is_main)
ret = sh_css_frame_allocate_from_info(&handle,
&vf_info);
else
ret = sh_css_frame_allocate_from_info(&handle,
&out_info);
hrt_isp_css_mm_set_user_ptr(0, 0);
if (ret != sh_css_success) {
v4l2_err(&atomisp_dev, "Error to allocate frame\n");
return -ENOMEM;
}
if (vm_mem->vaddr) {
mutex_lock(&pipe->capq.vb_lock);
sh_css_frame_free(vm_mem->vaddr);
vm_mem->vaddr = NULL;
vb->state = VIDEOBUF_NEEDS_INIT;
mutex_unlock(&pipe->capq.vb_lock);
}
vm_mem->vaddr = handle;
buf->flags &= ~V4L2_BUF_FLAG_MAPPED;
buf->flags |= V4L2_BUF_FLAG_QUEUED;
buf->flags &= ~V4L2_BUF_FLAG_DONE;
} else if (buf->memory == V4L2_MEMORY_MMAP) {
/**
* vpif_open : vpif open handler
* @filep: file ptr
*
* It creates object of file handle structure and stores it in private_data
* member of filepointer
*/
static int vpif_open(struct file *filep)
{
struct vpif_capture_config *config = vpif_dev->platform_data;
struct video_device *vdev = video_devdata(filep);
struct common_obj *common;
struct video_obj *vid_ch;
struct channel_obj *ch;
struct vpif_fh *fh;
int i, ret = 0;
vpif_dbg(2, debug, "vpif_open\n");
ch = video_get_drvdata(vdev);
vid_ch = &ch->video;
common = &ch->common[VPIF_VIDEO_INDEX];
if (mutex_lock_interruptible(&common->lock))
return -ERESTARTSYS;
if (NULL == ch->curr_subdev_info) {
/**
* search through the sub device to see a registered
* sub device and make it as current sub device
*/
for (i = 0; i < config->subdev_count; i++) {
if (vpif_obj.sd[i]) {
/* the sub device is registered */
ch->curr_subdev_info = &config->subdev_info[i];
/* make first input as the current input */
vid_ch->input_idx = 0;
break;
}
}
if (i == config->subdev_count) {
vpif_err("No sub device registered\n");
ret = -ENOENT;
goto exit;
}
}
/* Allocate memory for the file handle object */
fh = kmalloc(sizeof(struct vpif_fh), GFP_KERNEL);
if (NULL == fh) {
vpif_err("unable to allocate memory for file handle object\n");
ret = -ENOMEM;
goto exit;
}
/* store pointer to fh in private_data member of filep */
filep->private_data = fh;
fh->channel = ch;
fh->initialized = 0;
/* If decoder is not initialized. initialize it */
if (!ch->initialized) {
fh->initialized = 1;
ch->initialized = 1;
memset(&(ch->vpifparams), 0, sizeof(struct vpif_params));
}
/* Increment channel usrs counter */
ch->usrs++;
/* Set io_allowed member to false */
fh->io_allowed[VPIF_VIDEO_INDEX] = 0;
/* Initialize priority of this instance to default priority */
fh->prio = V4L2_PRIORITY_UNSET;
v4l2_prio_open(&ch->prio, &fh->prio);
exit:
mutex_unlock(&common->lock);
return ret;
}
static int snd_tea575x_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long data)
{
struct video_device *dev = video_devdata(file);
struct snd_tea575x *tea = video_get_drvdata(dev);
void __user *arg = (void __user *)data;
switch(cmd) {
case VIDIOCGCAP:
{
struct video_capability v;
v.type = VID_TYPE_TUNER;
v.channels = 1;
v.audios = 1;
/* No we don't do pictures */
v.maxwidth = 0;
v.maxheight = 0;
v.minwidth = 0;
v.minheight = 0;
strcpy(v.name, tea->tea5759 ? "TEA5759" : "TEA5757");
if (copy_to_user(arg,&v,sizeof(v)))
return -EFAULT;
return 0;
}
case VIDIOCGTUNER:
{
struct video_tuner v;
if (copy_from_user(&v, arg,sizeof(v))!=0)
return -EFAULT;
if (v.tuner) /* Only 1 tuner */
return -EINVAL;
v.rangelow = (87*16000);
v.rangehigh = (108*16000);
v.flags = VIDEO_TUNER_LOW;
v.mode = VIDEO_MODE_AUTO;
strcpy(v.name, "FM");
v.signal = 0xFFFF;
if (copy_to_user(arg, &v, sizeof(v)))
return -EFAULT;
return 0;
}
case VIDIOCSTUNER:
{
struct video_tuner v;
if(copy_from_user(&v, arg, sizeof(v)))
return -EFAULT;
if(v.tuner!=0)
return -EINVAL;
/* Only 1 tuner so no setting needed ! */
return 0;
}
case VIDIOCGFREQ:
if(copy_to_user(arg, &tea->freq, sizeof(tea->freq)))
return -EFAULT;
return 0;
case VIDIOCSFREQ:
if(copy_from_user(&tea->freq, arg, sizeof(tea->freq)))
return -EFAULT;
snd_tea575x_set_freq(tea);
return 0;
case VIDIOCGAUDIO:
{
struct video_audio v;
memset(&v, 0, sizeof(v));
strcpy(v.name, "Radio");
if(copy_to_user(arg,&v, sizeof(v)))
return -EFAULT;
return 0;
}
case VIDIOCSAUDIO:
{
struct video_audio v;
if(copy_from_user(&v, arg, sizeof(v)))
return -EFAULT;
if(v.audio)
return -EINVAL;
return 0;
}
default:
return -ENOIOCTLCMD;
}
}
static inline struct usb_usbvision *cd_to_usbvision(struct device *cd)
{
struct video_device *vdev =
container_of(cd, struct video_device, dev);
return video_get_drvdata(vdev);
}