linux/drivers/rapidio/rio-access.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * RapidIO configuration space access support
 *
 * Copyright 2005 MontaVista Software, Inc.
 * Matt Porter <[email protected]>
 */

#include <linux/rio.h>
#include <linux/module.h>

#include <linux/rio_drv.h>

/*
 *  Wrappers for all RIO configuration access functions.  They just check
 *  alignment and call the low-level functions pointed to by rio_mport->ops.
 */

#define RIO_8_BAD …
#define RIO_16_BAD …
#define RIO_32_BAD …

/**
 * RIO_LOP_READ - Generate rio_local_read_config_* functions
 * @size: Size of configuration space read (8, 16, 32 bits)
 * @type: C type of value argument
 * @len: Length of configuration space read (1, 2, 4 bytes)
 *
 * Generates rio_local_read_config_* functions used to access
 * configuration space registers on the local device.
 */
#define RIO_LOP_READ(size,type,len) …

/**
 * RIO_LOP_WRITE - Generate rio_local_write_config_* functions
 * @size: Size of configuration space write (8, 16, 32 bits)
 * @type: C type of value argument
 * @len: Length of configuration space write (1, 2, 4 bytes)
 *
 * Generates rio_local_write_config_* functions used to access
 * configuration space registers on the local device.
 */
#define RIO_LOP_WRITE(size,type,len) …

RIO_LOP_READ(…)
RIO_LOP_READ(…)
RIO_LOP_READ(…)
RIO_LOP_WRITE(…)
RIO_LOP_WRITE(…)
RIO_LOP_WRITE(…)

EXPORT_SYMBOL_GPL(…);
EXPORT_SYMBOL_GPL(…);
EXPORT_SYMBOL_GPL(…);
EXPORT_SYMBOL_GPL(…);
EXPORT_SYMBOL_GPL(…);
EXPORT_SYMBOL_GPL(…);

/**
 * RIO_OP_READ - Generate rio_mport_read_config_* functions
 * @size: Size of configuration space read (8, 16, 32 bits)
 * @type: C type of value argument
 * @len: Length of configuration space read (1, 2, 4 bytes)
 *
 * Generates rio_mport_read_config_* functions used to access
 * configuration space registers on the local device.
 */
#define RIO_OP_READ(size,type,len) …

/**
 * RIO_OP_WRITE - Generate rio_mport_write_config_* functions
 * @size: Size of configuration space write (8, 16, 32 bits)
 * @type: C type of value argument
 * @len: Length of configuration space write (1, 2, 4 bytes)
 *
 * Generates rio_mport_write_config_* functions used to access
 * configuration space registers on the local device.
 */
#define RIO_OP_WRITE(size,type,len) …

RIO_OP_READ(…)
RIO_OP_READ(…)
RIO_OP_READ(…)
RIO_OP_WRITE(…)
RIO_OP_WRITE(…)
RIO_OP_WRITE(…)

EXPORT_SYMBOL_GPL(…);
EXPORT_SYMBOL_GPL(…);
EXPORT_SYMBOL_GPL(…);
EXPORT_SYMBOL_GPL(…);
EXPORT_SYMBOL_GPL(…);
EXPORT_SYMBOL_GPL(…);

/**
 * rio_mport_send_doorbell - Send a doorbell message
 *
 * @mport: RIO master port
 * @destid: RIO device destination ID
 * @data: Doorbell message data
 *
 * Send a doorbell message to a RIO device. The doorbell message
 * has a 16-bit info field provided by the data argument.
 */
int rio_mport_send_doorbell(struct rio_mport *mport, u16 destid, u16 data)
{ … }

EXPORT_SYMBOL_GPL(…);