1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/media/platform/amphion/vpu_helpers.h b/drivers/media/platform/amphion/vpu_helpers.h
new file mode 100644
index 000000000000..bc28350958be
--- /dev/null
+++ b/drivers/media/platform/amphion/vpu_helpers.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2020-2021 NXP
+ */
+
+#ifndef _AMPHION_VPU_HELPERS_H
+#define _AMPHION_VPU_HELPERS_H
+
+struct vpu_pair {
+	u32 src;
+	u32 dst;
+};
+
+int vpu_helper_find_in_array_u8(const u8 *array, u32 size, u32 x);
+bool vpu_helper_check_type(struct vpu_inst *inst, u32 type);
+const struct vpu_format *vpu_helper_find_format(struct vpu_inst *inst, u32 type, u32 pixelfmt);
+const struct vpu_format *vpu_helper_enum_format(struct vpu_inst *inst, u32 type, int index);
+u32 vpu_helper_valid_frame_width(struct vpu_inst *inst, u32 width);
+u32 vpu_helper_valid_frame_height(struct vpu_inst *inst, u32 height);
+u32 vpu_helper_get_plane_size(u32 fmt, u32 width, u32 height, int plane_no,
+			      u32 stride, u32 interlaced, u32 *pbl);
+int vpu_helper_copy_from_stream_buffer(struct vpu_buffer *stream_buffer,
+				       u32 *rptr, u32 size, void *dst);
+int vpu_helper_copy_to_stream_buffer(struct vpu_buffer *stream_buffer,
+				     u32 *wptr, u32 size, void *src);
+int vpu_helper_memset_stream_buffer(struct vpu_buffer *stream_buffer,
+				    u32 *wptr, u8 val, u32 size);
+u32 vpu_helper_get_free_space(struct vpu_inst *inst);
+u32 vpu_helper_get_used_space(struct vpu_inst *inst);
+int vpu_helper_g_volatile_ctrl(struct v4l2_ctrl *ctrl);
+void vpu_helper_get_kmp_next(const u8 *pattern, int *next, int size);
+int vpu_helper_kmp_search(u8 *s, int s_len, const u8 *p, int p_len, int *next);
+int vpu_helper_kmp_search_in_stream_buffer(struct vpu_buffer *stream_buffer,
+					   u32 offset, int bytesused,
+					   const u8 *p, int p_len, int *next);
+int vpu_helper_find_startcode(struct vpu_buffer *stream_buffer,
+			      u32 pixelformat, u32 offset, u32 bytesused);
+
+static inline u32 vpu_helper_step_walk(struct vpu_buffer *stream_buffer, u32 pos, u32 step)
+{
+	pos += step;
+	if (pos > stream_buffer->phys + stream_buffer->length)
+		pos -= stream_buffer->length;
+
+	return pos;
+}
+
+static inline u8 vpu_helper_read_byte(struct vpu_buffer *stream_buffer, u32 pos)
+{
+	u8 *pdata = (u8 *)stream_buffer->virt;
+
+	return pdata[pos % stream_buffer->length];
+}
+
+int vpu_color_check_primaries(u32 primaries);
+int vpu_color_check_transfers(u32 transfers);
+int vpu_color_check_matrix(u32 matrix);
+int vpu_color_check_full_range(u32 full_range);
+u32 vpu_color_cvrt_primaries_v2i(u32 primaries);
+u32 vpu_color_cvrt_primaries_i2v(u32 primaries);
+u32 vpu_color_cvrt_transfers_v2i(u32 transfers);
+u32 vpu_color_cvrt_transfers_i2v(u32 transfers);
+u32 vpu_color_cvrt_matrix_v2i(u32 matrix);
+u32 vpu_color_cvrt_matrix_i2v(u32 matrix);
+u32 vpu_color_cvrt_full_range_v2i(u32 full_range);
+u32 vpu_color_cvrt_full_range_i2v(u32 full_range);
+int vpu_color_get_default(u32 primaries, u32 *ptransfers, u32 *pmatrix, u32 *pfull_range);
+
+int vpu_find_dst_by_src(struct vpu_pair *pairs, u32 cnt, u32 src);
+int vpu_find_src_by_dst(struct vpu_pair *pairs, u32 cnt, u32 dst);
+#endif