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

// SPDX-License-Identifier: GPL-2.0-only
/*
 * ngene-i2c.c: nGene PCIe bridge driver i2c functions
 *
 * Copyright (C) 2005-2007 Micronas
 *
 * Copyright (C) 2008-2009 Ralph Metzler <[email protected]>
 *                         Modifications for new nGene firmware,
 *                         support for EEPROM-copying,
 *                         support for new dual DVB-S2 card prototype
 */

/* FIXME - some of these can probably be removed */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/io.h>
#include <asm/div64.h>
#include <linux/pci.h>
#include <linux/pci_ids.h>
#include <linux/timer.h>
#include <linux/byteorder/generic.h>
#include <linux/firmware.h>
#include <linux/vmalloc.h>

#include "ngene.h"

/* Firmware command for i2c operations */
static int ngene_command_i2c_read(struct ngene *dev, u8 adr,
			   u8 *out, u8 outlen, u8 *in, u8 inlen, int flag)
{ … }

static int ngene_command_i2c_write(struct ngene *dev, u8 adr,
				   u8 *out, u8 outlen)
{ … }

static void ngene_i2c_set_bus(struct ngene *dev, int bus)
{ … }

static int ngene_i2c_master_xfer(struct i2c_adapter *adapter,
				 struct i2c_msg msg[], int num)
{ … }


static u32 ngene_i2c_functionality(struct i2c_adapter *adap)
{ … }

static const struct i2c_algorithm ngene_i2c_algo = …;

int ngene_i2c_init(struct ngene *dev, int dev_nr)
{ … }