linux/drivers/media/pci/ddbridge/ddbridge-i2c.c

// SPDX-License-Identifier: GPL-2.0
/*
 * ddbridge-i2c.c: Digital Devices bridge i2c driver
 *
 * Copyright (C) 2010-2017 Digital Devices GmbH
 *                         Ralph Metzler <[email protected]>
 *                         Marcus Metzler <[email protected]>
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/io.h>
#include <linux/pci.h>
#include <linux/pci_ids.h>
#include <linux/timer.h>
#include <linux/i2c.h>
#include <linux/swab.h>
#include <linux/vmalloc.h>

#include "ddbridge.h"
#include "ddbridge-i2c.h"
#include "ddbridge-regs.h"
#include "ddbridge-io.h"

/******************************************************************************/

static int ddb_i2c_cmd(struct ddb_i2c *i2c, u32 adr, u32 cmd)
{ … }

static int ddb_i2c_master_xfer(struct i2c_adapter *adapter,
			       struct i2c_msg msg[], int num)
{ … }

static u32 ddb_i2c_functionality(struct i2c_adapter *adap)
{ … }

static const struct i2c_algorithm ddb_i2c_algo = …;

void ddb_i2c_release(struct ddb *dev)
{ … }

static void i2c_handler(void *priv)
{ … }

static int ddb_i2c_add(struct ddb *dev, struct ddb_i2c *i2c,
		       const struct ddb_regmap *regmap, int link,
		       int i, int num)
{ … }

int ddb_i2c_init(struct ddb *dev)
{ … }