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path: root/drivers/media/common/saa7146/saa7146_hlp.c
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Diffstat (limited to 'drivers/media/common/saa7146/saa7146_hlp.c')
-rw-r--r--drivers/media/common/saa7146/saa7146_hlp.c296
1 files changed, 0 insertions, 296 deletions
diff --git a/drivers/media/common/saa7146/saa7146_hlp.c b/drivers/media/common/saa7146/saa7146_hlp.c
index 6c9946a402ee..6792a96d0ba3 100644
--- a/drivers/media/common/saa7146/saa7146_hlp.c
+++ b/drivers/media/common/saa7146/saa7146_hlp.c
@@ -306,221 +306,6 @@ static int calculate_v_scale_registers(struct saa7146_dev *dev, enum v4l2_field
}
/* 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;
@@ -556,62 +341,6 @@ static void saa7146_set_window(struct saa7146_dev *dev, int width, int height, e
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);
@@ -645,30 +374,6 @@ void saa7146_set_hps_source_and_sync(struct saa7146_dev *dev, int source, int sy
}
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;
@@ -1011,7 +716,6 @@ void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struc
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 ) {
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-26 23:55:56 +0000