linux/drivers/media/platform/chips-media/coda/coda-gdi.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Coda multi-standard codec IP
 *
 * Copyright (C) 2014 Philipp Zabel, Pengutronix
 */

#include <linux/bitops.h>
#include "coda.h"

#define XY2_INVERT …
#define XY2_ZERO …
#define XY2_TB_XOR …
#define XY2_XYSEL …
#define XY2_Y …
#define XY2_X …

#define XY2(luma_sel, luma_bit, chroma_sel, chroma_bit) …

static const u16 xy2ca_zero_map[16] = …;

static const u16 xy2ca_tiled_map[16] = …;

/*
 * RA[15:0], CA[15:8] are hardwired to contain the 24-bit macroblock
 * start offset (macroblock size is 16x16 for luma, 16x8 for chroma).
 * Bits CA[4:0] are set using XY2CA above. BA[3:0] seems to be unused.
 */

#define RBC_CA …
#define RBC_BA …
#define RBC_RA …
#define RBC_ZERO …

#define RBC(luma_sel, luma_bit, chroma_sel, chroma_bit) …

static const u16 rbc2axi_tiled_map[32] = …;

void coda_set_gdi_regs(struct coda_ctx *ctx)
{ … }