configuration data) */
dev->ext_vv_data = ext_vv;
- vv->d_clipping.cpu_addr =
- dma_alloc_coherent(&dev->pci->dev, SAA7146_CLIPPING_MEM,
- &vv->d_clipping.dma_handle, GFP_KERNEL);
- if( NULL == vv->d_clipping.cpu_addr ) {
- ERR("out of memory. aborting.\n");
- kfree(vv);
- v4l2_ctrl_handler_free(hdl);
- v4l2_device_unregister(&dev->v4l2_dev);
- return -ENOMEM;
- }
-
saa7146_video_uops.init(dev,vv);
if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
saa7146_vbi_uops.init(dev,vv);
- vv->ov_fb.fmt.width = vv->standard->h_max_out;
- vv->ov_fb.fmt.height = vv->standard->v_max_out;
- vv->ov_fb.fmt.pixelformat = V4L2_PIX_FMT_RGB565;
- vv->ov_fb.fmt.bytesperline = 2 * vv->ov_fb.fmt.width;
- vv->ov_fb.fmt.sizeimage = vv->ov_fb.fmt.bytesperline * vv->ov_fb.fmt.height;
- vv->ov_fb.fmt.colorspace = V4L2_COLORSPACE_SRGB;
-
fmt = &vv->video_fmt;
fmt->width = 384;
fmt->height = 288;
timer_setup(&vv->vbi_read_timeout, NULL, 0);
- vv->ov_fb.capability = V4L2_FBUF_CAP_LIST_CLIPPING;
- vv->ov_fb.flags = V4L2_FBUF_FLAG_PRIMARY;
dev->vv_data = vv;
dev->vv_callback = &vv_callback;
DEB_EE("dev:%p\n", dev);
v4l2_device_unregister(&dev->v4l2_dev);
- dma_free_coherent(&dev->pci->dev, SAA7146_CLIPPING_MEM,
- vv->d_clipping.cpu_addr, vv->d_clipping.dma_handle);
v4l2_ctrl_handler_free(&dev->ctrl_handler);
kfree(vv);
dev->vv_data = NULL;
for (i = 0; i < dev->ext_vv_data->num_stds; i++)
vfd->tvnorms |= dev->ext_vv_data->stds[i].id;
strscpy(vfd->name, name, sizeof(vfd->name));
- vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY |
+ vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
vfd->device_caps |= dev->ext_vv_data->capabilities;
if (type == VFL_TYPE_VIDEO)
~(V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_OUTPUT);
else
vfd->device_caps &=
- ~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | V4L2_CAP_AUDIO);
+ ~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO);
video_set_drvdata(vfd, dev);
err = video_register_device(vfd, type, -1);
}
/* simple bubble-sort algorithm with duplicate elimination */
-static int sort_and_eliminate(u32* values, int* count)
-{
- int low = 0, high = 0, top = 0;
- int cur = 0, next = 0;
-
- /* sanity checks */
- if( (0 > *count) || (NULL == values) ) {
- return -EINVAL;
- }
-
- /* bubble sort the first @count items of the array @values */
- for( top = *count; top > 0; top--) {
- for( low = 0, high = 1; high < top; low++, high++) {
- if( values[low] > values[high] )
- swap(values[low], values[high]);
- }
- }
-
- /* remove duplicate items */
- for( cur = 0, next = 1; next < *count; next++) {
- if( values[cur] != values[next])
- values[++cur] = values[next];
- }
-
- *count = cur + 1;
-
- return 0;
-}
-
-static void calculate_clipping_registers_rect(struct saa7146_dev *dev, struct saa7146_fh *fh,
- struct saa7146_video_dma *vdma2, u32* clip_format, u32* arbtr_ctrl, enum v4l2_field field)
-{
- struct saa7146_vv *vv = dev->vv_data;
- __le32 *clipping = vv->d_clipping.cpu_addr;
-
- int width = vv->ov.win.w.width;
- int height = vv->ov.win.w.height;
- int clipcount = vv->ov.nclips;
-
- u32 line_list[32];
- u32 pixel_list[32];
- int numdwords = 0;
-
- int i = 0, j = 0;
- int cnt_line = 0, cnt_pixel = 0;
-
- int x[32], y[32], w[32], h[32];
-
- /* clear out memory */
- memset(&line_list[0], 0x00, sizeof(u32)*32);
- memset(&pixel_list[0], 0x00, sizeof(u32)*32);
- memset(clipping, 0x00, SAA7146_CLIPPING_MEM);
-
- /* fill the line and pixel-lists */
- for(i = 0; i < clipcount; i++) {
- int l = 0, r = 0, t = 0, b = 0;
-
- x[i] = vv->ov.clips[i].c.left;
- y[i] = vv->ov.clips[i].c.top;
- w[i] = vv->ov.clips[i].c.width;
- h[i] = vv->ov.clips[i].c.height;
-
- if( w[i] < 0) {
- x[i] += w[i]; w[i] = -w[i];
- }
- if( h[i] < 0) {
- y[i] += h[i]; h[i] = -h[i];
- }
- if( x[i] < 0) {
- w[i] += x[i]; x[i] = 0;
- }
- if( y[i] < 0) {
- h[i] += y[i]; y[i] = 0;
- }
- if( 0 != vv->vflip ) {
- y[i] = height - y[i] - h[i];
- }
-
- l = x[i];
- r = x[i]+w[i];
- t = y[i];
- b = y[i]+h[i];
-
- /* insert left/right coordinates */
- pixel_list[ 2*i ] = min_t(int, l, width);
- pixel_list[(2*i)+1] = min_t(int, r, width);
- /* insert top/bottom coordinates */
- line_list[ 2*i ] = min_t(int, t, height);
- line_list[(2*i)+1] = min_t(int, b, height);
- }
-
- /* sort and eliminate lists */
- cnt_line = cnt_pixel = 2*clipcount;
- sort_and_eliminate( &pixel_list[0], &cnt_pixel );
- sort_and_eliminate( &line_list[0], &cnt_line );
-
- /* calculate the number of used u32s */
- numdwords = max_t(int, (cnt_line+1), (cnt_pixel+1))*2;
- numdwords = max_t(int, 4, numdwords);
- numdwords = min_t(int, 64, numdwords);
-
- /* fill up cliptable */
- for(i = 0; i < cnt_pixel; i++) {
- clipping[2*i] |= cpu_to_le32(pixel_list[i] << 16);
- }
- for(i = 0; i < cnt_line; i++) {
- clipping[(2*i)+1] |= cpu_to_le32(line_list[i] << 16);
- }
-
- /* fill up cliptable with the display infos */
- for(j = 0; j < clipcount; j++) {
-
- for(i = 0; i < cnt_pixel; i++) {
-
- if( x[j] < 0)
- x[j] = 0;
-
- if( pixel_list[i] < (x[j] + w[j])) {
-
- if ( pixel_list[i] >= x[j] ) {
- clipping[2*i] |= cpu_to_le32(1 << j);
- }
- }
- }
- for(i = 0; i < cnt_line; i++) {
-
- if( y[j] < 0)
- y[j] = 0;
-
- if( line_list[i] < (y[j] + h[j]) ) {
-
- if( line_list[i] >= y[j] ) {
- clipping[(2*i)+1] |= cpu_to_le32(1 << j);
- }
- }
- }
- }
-
- /* adjust arbitration control register */
- *arbtr_ctrl &= 0xffff00ff;
- *arbtr_ctrl |= 0x00001c00;
-
- vdma2->base_even = vv->d_clipping.dma_handle;
- vdma2->base_odd = vv->d_clipping.dma_handle;
- vdma2->prot_addr = vv->d_clipping.dma_handle+((sizeof(u32))*(numdwords));
- vdma2->base_page = 0x04;
- vdma2->pitch = 0x00;
- vdma2->num_line_byte = (0 << 16 | (sizeof(u32))*(numdwords-1) );
-
- /* set clipping-mode. this depends on the field(s) used */
- *clip_format &= 0xfffffff7;
- if (V4L2_FIELD_HAS_BOTH(field)) {
- *clip_format |= 0x00000008;
- } else {
- *clip_format |= 0x00000000;
- }
-}
-
-/* disable clipping */
-static void saa7146_disable_clipping(struct saa7146_dev *dev)
-{
- u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL);
-
- /* mask out relevant bits (=lower word)*/
- clip_format &= MASK_W1;
-
- /* upload clipping-registers*/
- saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format);
- saa7146_write(dev, MC2, (MASK_05 | MASK_21));
-
- /* disable video dma2 */
- saa7146_write(dev, MC1, MASK_21);
-}
-
-static void saa7146_set_clipping_rect(struct saa7146_fh *fh)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- enum v4l2_field field = vv->ov.win.field;
- struct saa7146_video_dma vdma2;
- u32 clip_format;
- u32 arbtr_ctrl;
-
- /* check clipcount, disable clipping if clipcount == 0*/
- if (vv->ov.nclips == 0) {
- saa7146_disable_clipping(dev);
- return;
- }
-
- clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL);
- arbtr_ctrl = saa7146_read(dev, PCI_BT_V1);
-
- calculate_clipping_registers_rect(dev, fh, &vdma2, &clip_format, &arbtr_ctrl, field);
-
- /* set clipping format */
- clip_format &= 0xffff0008;
- clip_format |= (SAA7146_CLIPPING_RECT << 4);
-
- /* prepare video dma2 */
- saa7146_write(dev, BASE_EVEN2, vdma2.base_even);
- saa7146_write(dev, BASE_ODD2, vdma2.base_odd);
- saa7146_write(dev, PROT_ADDR2, vdma2.prot_addr);
- saa7146_write(dev, BASE_PAGE2, vdma2.base_page);
- saa7146_write(dev, PITCH2, vdma2.pitch);
- saa7146_write(dev, NUM_LINE_BYTE2, vdma2.num_line_byte);
-
- /* prepare the rest */
- saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format);
- saa7146_write(dev, PCI_BT_V1, arbtr_ctrl);
-
- /* upload clip_control-register, clipping-registers, enable video dma2 */
- saa7146_write(dev, MC2, (MASK_05 | MASK_21 | MASK_03 | MASK_19));
- saa7146_write(dev, MC1, (MASK_05 | MASK_21));
-}
-
static void saa7146_set_window(struct saa7146_dev *dev, int width, int height, enum v4l2_field field)
{
struct saa7146_vv *vv = dev->vv_data;
saa7146_write(dev, MC2, (MASK_05 | MASK_06 | MASK_21 | MASK_22) );
}
-/* calculate the new memory offsets for a desired position */
-static void saa7146_set_position(struct saa7146_dev *dev, int w_x, int w_y, int w_height, enum v4l2_field field, u32 pixelformat)
-{
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev, pixelformat);
-
- int b_depth = vv->ov_fmt->depth;
- int b_bpl = vv->ov_fb.fmt.bytesperline;
- /* The unsigned long cast is to remove a 64-bit compile warning since
- it looks like a 64-bit address is cast to a 32-bit value, even
- though the base pointer is really a 32-bit physical address that
- goes into a 32-bit DMA register.
- FIXME: might not work on some 64-bit platforms, but see the FIXME
- in struct v4l2_framebuffer (videodev2.h) for that.
- */
- u32 base = (u32)(unsigned long)vv->ov_fb.base;
-
- struct saa7146_video_dma vdma1;
-
- /* calculate memory offsets for picture, look if we shall top-down-flip */
- vdma1.pitch = 2*b_bpl;
- if ( 0 == vv->vflip ) {
- vdma1.base_even = base + (w_y * (vdma1.pitch/2)) + (w_x * (b_depth / 8));
- vdma1.base_odd = vdma1.base_even + (vdma1.pitch / 2);
- vdma1.prot_addr = vdma1.base_even + (w_height * (vdma1.pitch / 2));
- }
- else {
- vdma1.base_even = base + ((w_y+w_height) * (vdma1.pitch/2)) + (w_x * (b_depth / 8));
- vdma1.base_odd = vdma1.base_even - (vdma1.pitch / 2);
- vdma1.prot_addr = vdma1.base_odd - (w_height * (vdma1.pitch / 2));
- }
-
- if (V4L2_FIELD_HAS_BOTH(field)) {
- } else if (field == V4L2_FIELD_ALTERNATE) {
- /* fixme */
- vdma1.base_odd = vdma1.prot_addr;
- vdma1.pitch /= 2;
- } else if (field == V4L2_FIELD_TOP) {
- vdma1.base_odd = vdma1.prot_addr;
- vdma1.pitch /= 2;
- } else if (field == V4L2_FIELD_BOTTOM) {
- vdma1.base_odd = vdma1.base_even;
- vdma1.base_even = vdma1.prot_addr;
- vdma1.pitch /= 2;
- }
-
- if ( 0 != vv->vflip ) {
- vdma1.pitch *= -1;
- }
-
- vdma1.base_page = sfmt->swap;
- vdma1.num_line_byte = (vv->standard->v_field<<16)+vv->standard->h_pixels;
-
- saa7146_write_out_dma(dev, 1, &vdma1);
-}
-
static void saa7146_set_output_format(struct saa7146_dev *dev, unsigned long palette)
{
u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL);
}
EXPORT_SYMBOL_GPL(saa7146_set_hps_source_and_sync);
-int saa7146_enable_overlay(struct saa7146_fh *fh)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- saa7146_set_window(dev, vv->ov.win.w.width, vv->ov.win.w.height, vv->ov.win.field);
- saa7146_set_position(dev, vv->ov.win.w.left, vv->ov.win.w.top, vv->ov.win.w.height, vv->ov.win.field, vv->ov_fmt->pixelformat);
- saa7146_set_output_format(dev, vv->ov_fmt->trans);
- saa7146_set_clipping_rect(fh);
-
- /* enable video dma1 */
- saa7146_write(dev, MC1, (MASK_06 | MASK_22));
- return 0;
-}
-
-void saa7146_disable_overlay(struct saa7146_fh *fh)
-{
- struct saa7146_dev *dev = fh->dev;
-
- /* disable clipping + video dma1 */
- saa7146_disable_clipping(dev);
- saa7146_write(dev, MC1, MASK_22);
-}
-
void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma)
{
int where = 0;
saa7146_set_window(dev, buf->fmt->width, buf->fmt->height, buf->fmt->field);
saa7146_set_output_format(dev, sfmt->trans);
- saa7146_disable_clipping(dev);
if ( vv->last_field == V4L2_FIELD_INTERLACED ) {
} else if ( vv->last_field == V4L2_FIELD_TOP ) {
#define IS_CAPTURE_ACTIVE(fh) \
(((vv->video_status & STATUS_CAPTURE) != 0) && (vv->video_fh == fh))
-#define IS_OVERLAY_ACTIVE(fh) \
- (((vv->video_status & STATUS_OVERLAY) != 0) && (vv->video_fh == fh))
-
/* format descriptions for capture and preview */
static struct saa7146_format formats[] = {
{
return NULL;
}
-static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f);
-
-int saa7146_start_preview(struct saa7146_fh *fh)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct v4l2_format fmt;
- int ret = 0, err = 0;
-
- DEB_EE("dev:%p, fh:%p\n", dev, fh);
-
- /* check if we have overlay information */
- if (vv->ov.fh == NULL) {
- DEB_D("no overlay data available. try S_FMT first.\n");
- return -EAGAIN;
- }
-
- /* check if streaming capture is running */
- if (IS_CAPTURE_ACTIVE(fh) != 0) {
- DEB_D("streaming capture is active\n");
- return -EBUSY;
- }
-
- /* check if overlay is running */
- if (IS_OVERLAY_ACTIVE(fh) != 0) {
- if (vv->video_fh == fh) {
- DEB_D("overlay is already active\n");
- return 0;
- }
- DEB_D("overlay is already active in another open\n");
- return -EBUSY;
- }
-
- if (0 == saa7146_res_get(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP)) {
- DEB_D("cannot get necessary overlay resources\n");
- return -EBUSY;
- }
-
- fmt.fmt.win = vv->ov.win;
- err = vidioc_try_fmt_vid_overlay(NULL, fh, &fmt);
- if (0 != err) {
- saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP);
- return -EBUSY;
- }
- vv->ov.win = fmt.fmt.win;
-
- DEB_D("%dx%d+%d+%d 0x%08x field=%s\n",
- vv->ov.win.w.width, vv->ov.win.w.height,
- vv->ov.win.w.left, vv->ov.win.w.top,
- vv->ov_fmt->pixelformat, v4l2_field_names[vv->ov.win.field]);
-
- if (0 != (ret = saa7146_enable_overlay(fh))) {
- DEB_D("enabling overlay failed: %d\n", ret);
- saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP);
- return ret;
- }
-
- vv->video_status = STATUS_OVERLAY;
- vv->video_fh = fh;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(saa7146_start_preview);
-
-int saa7146_stop_preview(struct saa7146_fh *fh)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- DEB_EE("dev:%p, fh:%p\n", dev, fh);
-
- /* check if streaming capture is running */
- if (IS_CAPTURE_ACTIVE(fh) != 0) {
- DEB_D("streaming capture is active\n");
- return -EBUSY;
- }
-
- /* check if overlay is running at all */
- if ((vv->video_status & STATUS_OVERLAY) == 0) {
- DEB_D("no active overlay\n");
- return 0;
- }
-
- if (vv->video_fh != fh) {
- DEB_D("overlay is active, but in another open\n");
- return -EBUSY;
- }
-
- vv->video_status = 0;
- vv->video_fh = NULL;
-
- saa7146_disable_overlay(fh);
-
- saa7146_res_free(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(saa7146_stop_preview);
-
/********************************************************************************/
/* common pagetable functions */
struct saa7146_vv *vv = dev->vv_data;
struct saa7146_format *fmt = NULL;
unsigned int resource;
- int ret = 0, err = 0;
+ int ret = 0;
DEB_EE("dev:%p, fh:%p\n", dev, fh);
return -EBUSY;
}
- if ((vv->video_status & STATUS_OVERLAY) != 0) {
- DEB_S("warning: suspending overlay video for streaming capture\n");
- vv->ov_suspend = vv->video_fh;
- err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */
- if (0 != err) {
- DEB_D("suspending video failed. aborting\n");
- return err;
- }
- }
-
fmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat);
/* we need to have a valid format set here */
if (!fmt)
ret = saa7146_res_get(fh, resource);
if (0 == ret) {
DEB_S("cannot get capture resource %d\n", resource);
- if (vv->ov_suspend != NULL) {
- saa7146_start_preview(vv->ov_suspend);
- vv->ov_suspend = NULL;
- }
return -EBUSY;
}
saa7146_res_free(fh, resource);
- if (vv->ov_suspend != NULL) {
- saa7146_start_preview(vv->ov_suspend);
- vv->ov_suspend = NULL;
- }
-
return 0;
}
strscpy((char *)cap->driver, "saa7146 v4l2", sizeof(cap->driver));
strscpy((char *)cap->card, dev->ext->name, sizeof(cap->card));
- cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY |
+ cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
V4L2_CAP_DEVICE_CAPS;
cap->capabilities |= dev->ext_vv_data->capabilities;
return 0;
}
-static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- *fb = vv->ov_fb;
- fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
- fb->flags = V4L2_FBUF_FLAG_PRIMARY;
- return 0;
-}
-
-static int vidioc_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuffer *fb)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_format *fmt;
-
- DEB_EE("VIDIOC_S_FBUF\n");
-
- if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
- return -EPERM;
-
- /* check args */
- fmt = saa7146_format_by_fourcc(dev, fb->fmt.pixelformat);
- if (NULL == fmt)
- return -EINVAL;
-
- /* planar formats are not allowed for overlay video, clipping and video dma would clash */
- if (fmt->flags & FORMAT_IS_PLANAR)
- DEB_S("planar pixelformat '%4.4s' not allowed for overlay\n",
- (char *)&fmt->pixelformat);
-
- /* check if overlay is running */
- if (IS_OVERLAY_ACTIVE(fh) != 0) {
- if (vv->video_fh != fh) {
- DEB_D("refusing to change framebuffer information while overlay is active in another open\n");
- return -EBUSY;
- }
- }
-
- /* ok, accept it */
- vv->ov_fb = *fb;
- vv->ov_fmt = fmt;
-
- if (vv->ov_fb.fmt.bytesperline < vv->ov_fb.fmt.width) {
- vv->ov_fb.fmt.bytesperline = vv->ov_fb.fmt.width * fmt->depth / 8;
- DEB_D("setting bytesperline to %d\n", vv->ov_fb.fmt.bytesperline);
- }
- return 0;
-}
-
static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f)
{
if (f->index >= ARRAY_SIZE(formats))
default:
return -EINVAL;
}
-
- if ((vv->video_status & STATUS_OVERLAY) != 0) { /* CHECK: && (vv->video_fh == fh)) */
- struct saa7146_fh *fh = vv->video_fh;
-
- saa7146_stop_preview(fh);
- saa7146_start_preview(fh);
- }
return 0;
}
return 0;
}
-static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- f->fmt.win = vv->ov.win;
- return 0;
-}
-
static int vidioc_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f)
{
struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
return 0;
}
-
-static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct v4l2_window *win = &f->fmt.win;
- enum v4l2_field field;
- int maxw, maxh;
-
- DEB_EE("dev:%p\n", dev);
-
- if (NULL == vv->ov_fb.base) {
- DEB_D("no fb base set\n");
- return -EINVAL;
- }
- if (NULL == vv->ov_fmt) {
- DEB_D("no fb fmt set\n");
- return -EINVAL;
- }
- if (win->w.width < 48 || win->w.height < 32) {
- DEB_D("min width/height. (%d,%d)\n",
- win->w.width, win->w.height);
- return -EINVAL;
- }
- if (win->clipcount > 16) {
- DEB_D("clipcount too big\n");
- return -EINVAL;
- }
-
- field = win->field;
- maxw = vv->standard->h_max_out;
- maxh = vv->standard->v_max_out;
-
- if (V4L2_FIELD_ANY == field) {
- field = (win->w.height > maxh / 2)
- ? V4L2_FIELD_INTERLACED
- : V4L2_FIELD_TOP;
- }
- switch (field) {
- case V4L2_FIELD_TOP:
- case V4L2_FIELD_BOTTOM:
- case V4L2_FIELD_ALTERNATE:
- maxh = maxh / 2;
- break;
- case V4L2_FIELD_INTERLACED:
- break;
- default:
- DEB_D("no known field mode '%d'\n", field);
- return -EINVAL;
- }
-
- win->field = field;
- if (win->w.width > maxw)
- win->w.width = maxw;
- if (win->w.height > maxh)
- win->w.height = maxh;
-
- return 0;
-}
-
static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *f)
{
struct saa7146_fh *fh = __fh;
return 0;
}
-static int vidioc_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *f)
-{
- struct saa7146_fh *fh = __fh;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- int err;
-
- DEB_EE("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh);
- err = vidioc_try_fmt_vid_overlay(file, fh, f);
- if (0 != err)
- return err;
- vv->ov.win = f->fmt.win;
- vv->ov.nclips = f->fmt.win.clipcount;
- if (vv->ov.nclips > 16)
- vv->ov.nclips = 16;
- memcpy(vv->ov.clips, f->fmt.win.clips,
- sizeof(struct v4l2_clip) * vv->ov.nclips);
-
- /* vv->ov.fh is used to indicate that we have valid overlay information, too */
- vv->ov.fh = fh;
-
- /* check if our current overlay is active */
- if (IS_OVERLAY_ACTIVE(fh) != 0) {
- saa7146_stop_preview(fh);
- saa7146_start_preview(fh);
- }
- return 0;
-}
-
static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm)
{
struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
struct saa7146_vv *vv = dev->vv_data;
int found = 0;
- int err, i;
+ int i;
DEB_EE("VIDIOC_S_STD\n");
return -EBUSY;
}
- if ((vv->video_status & STATUS_OVERLAY) != 0) {
- vv->ov_suspend = vv->video_fh;
- err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */
- if (0 != err) {
- DEB_D("suspending video failed. aborting\n");
- return err;
- }
- }
-
for (i = 0; i < dev->ext_vv_data->num_stds; i++)
if (id & dev->ext_vv_data->stds[i].id)
break;
found = 1;
}
- if (vv->ov_suspend != NULL) {
- saa7146_start_preview(vv->ov_suspend);
- vv->ov_suspend = NULL;
- }
-
if (!found) {
DEB_EE("VIDIOC_S_STD: standard not found\n");
return -EINVAL;
return 0;
}
-static int vidioc_overlay(struct file *file, void *fh, unsigned int on)
-{
- int err;
-
- DEB_D("VIDIOC_OVERLAY on:%d\n", on);
- if (on)
- err = saa7146_start_preview(fh);
- else
- err = saa7146_stop_preview(fh);
- return err;
-}
-
static int vidioc_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *b)
{
struct saa7146_fh *fh = __fh;
const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
- .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
- .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay,
- .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay,
- .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay,
- .vidioc_overlay = vidioc_overlay,
- .vidioc_g_fbuf = vidioc_g_fbuf,
- .vidioc_s_fbuf = vidioc_s_fbuf,
.vidioc_reqbufs = vidioc_reqbufs,
.vidioc_querybuf = vidioc_querybuf,
.vidioc_qbuf = vidioc_qbuf,
saa7146_pgtable_alloc(dev->pci, &buf->pt[0]);
}
- err = videobuf_iolock(q,&buf->vb, &vv->ov_fb);
+ err = videobuf_iolock(q, &buf->vb, NULL);
if (err)
goto oops;
err = saa7146_pgtable_build(dev,buf);
if (IS_CAPTURE_ACTIVE(fh) != 0)
video_end(fh, file);
- else if (IS_OVERLAY_ACTIVE(fh) != 0)
- saa7146_stop_preview(fh);
videobuf_stop(q);
/* hmm, why is this function declared void? */
ret = video_end(fh, file);
}
out:
- /* restart overlay if it was active before */
- if (vv->ov_suspend != NULL) {
- saa7146_start_preview(vv->ov_suspend);
- vv->ov_suspend = NULL;
- }
-
return ret;
}
static int av7110_dvb_c_switch(struct saa7146_fh *fh)
{
struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
struct av7110 *av7110 = (struct av7110*)dev->ext_priv;
u16 adswitch;
- int source, sync, err;
+ int source, sync;
dprintk(4, "%p\n", av7110);
- if ((vv->video_status & STATUS_OVERLAY) != 0) {
- vv->ov_suspend = vv->video_fh;
- err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */
- if (err != 0) {
- dprintk(2, "suspending video failed\n");
- vv->ov_suspend = NULL;
- }
- }
-
if (0 != av7110->current_input) {
dprintk(1, "switching to analog TV:\n");
adswitch = 1;
saa7146_set_hps_source_and_sync(dev, source, sync);
- if (vv->ov_suspend != NULL) {
- saa7146_start_preview(vv->ov_suspend);
- vv->ov_suspend = NULL;
- }
-
return 0;
}
struct timer_list timeout;
};
-struct saa7146_overlay {
- struct saa7146_fh *fh;
- struct v4l2_window win;
- struct v4l2_clip clips[16];
- int nclips;
-};
-
/* per open data */
struct saa7146_fh {
/* Must be the first field! */
unsigned int resources; /* resource management for device open */
};
-#define STATUS_OVERLAY 0x01
#define STATUS_CAPTURE 0x02
struct saa7146_vv
int video_status;
struct saa7146_fh *video_fh;
- /* video overlay */
- struct saa7146_overlay ov;
- struct v4l2_framebuffer ov_fb;
- struct saa7146_format *ov_fmt;
- struct saa7146_fh *ov_suspend;
-
/* video capture */
struct saa7146_dmaqueue video_dmaq;
struct v4l2_pix_format video_fmt;
int current_hps_source;
int current_hps_sync;
- struct saa7146_dma d_clipping; /* pointer to clipping memory */
-
unsigned int resources; /* resource management for device */
};
int saa7146_vv_release(struct saa7146_dev* dev);
/* from saa7146_hlp.c */
-int saa7146_enable_overlay(struct saa7146_fh *fh);
-void saa7146_disable_overlay(struct saa7146_fh *fh);
-
void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops;
extern const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops;
extern const struct saa7146_use_ops saa7146_video_uops;
-int saa7146_start_preview(struct saa7146_fh *fh);
-int saa7146_stop_preview(struct saa7146_fh *fh);
long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg);
int saa7146_s_ctrl(struct v4l2_ctrl *ctrl);
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