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path: root/drivers/media/pci/bt8xx/btcx-risc.h
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Diffstat (limited to 'drivers/media/pci/bt8xx/btcx-risc.h')
-rw-r--r--drivers/media/pci/bt8xx/btcx-risc.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/media/pci/bt8xx/btcx-risc.h b/drivers/media/pci/bt8xx/btcx-risc.h
new file mode 100644
index 000000000..dc774a64c
--- /dev/null
+++ b/drivers/media/pci/bt8xx/btcx-risc.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+struct btcx_riscmem {
+ unsigned int size;
+ __le32 *cpu;
+ __le32 *jmp;
+ dma_addr_t dma;
+};
+
+struct btcx_skiplist {
+ int start;
+ int end;
+};
+
+int btcx_riscmem_alloc(struct pci_dev *pci,
+ struct btcx_riscmem *risc,
+ unsigned int size);
+void btcx_riscmem_free(struct pci_dev *pci,
+ struct btcx_riscmem *risc);
+
+int btcx_screen_clips(int swidth, int sheight, struct v4l2_rect *win,
+ struct v4l2_clip *clips, unsigned int n);
+int btcx_align(struct v4l2_rect *win, struct v4l2_clip *clips,
+ unsigned int n, int mask);
+void btcx_sort_clips(struct v4l2_clip *clips, unsigned int nclips);
+void btcx_calc_skips(int line, int width, int *maxy,
+ struct btcx_skiplist *skips, unsigned int *nskips,
+ const struct v4l2_clip *clips, unsigned int nclips);