linux/drivers/media/platform/ti/vpe/sc.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Scaler library
 *
 * Copyright (c) 2013 Texas Instruments Inc.
 *
 * David Griego, <[email protected]>
 * Dale Farnsworth, <[email protected]>
 * Archit Taneja, <[email protected]>
 */

#include <linux/err.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>

#include "sc.h"
#include "sc_coeff.h"

void sc_dump_regs(struct sc_data *sc)
{ … }
EXPORT_SYMBOL(…);

/*
 * set the horizontal scaler coefficients according to the ratio of output to
 * input widths, after accounting for up to two levels of decimation
 */
void sc_set_hs_coeffs(struct sc_data *sc, void *addr, unsigned int src_w,
		unsigned int dst_w)
{ … }
EXPORT_SYMBOL(…);

/*
 * set the vertical scaler coefficients according to the ratio of output to
 * input heights
 */
void sc_set_vs_coeffs(struct sc_data *sc, void *addr, unsigned int src_h,
		unsigned int dst_h)
{ … }
EXPORT_SYMBOL(…);

void sc_config_scaler(struct sc_data *sc, u32 *sc_reg0, u32 *sc_reg8,
		u32 *sc_reg17, unsigned int src_w, unsigned int src_h,
		unsigned int dst_w, unsigned int dst_h)
{ … }
EXPORT_SYMBOL(…);

struct sc_data *sc_create(struct platform_device *pdev, const char *res_name)
{ … }
EXPORT_SYMBOL(…);

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;