linux/drivers/tty/serial/8250/8250_rsa.c

// SPDX-License-Identifier: GPL-2.0+

#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/moduleparam.h>

#include <linux/serial.h>
#include <linux/serial_8250.h>

#include "8250.h"

#define PORT_RSA_MAX …
static unsigned long probe_rsa[PORT_RSA_MAX];
static unsigned int probe_rsa_count;

static int rsa8250_request_resource(struct uart_8250_port *up)
{ … }

static void rsa8250_release_resource(struct uart_8250_port *up)
{ … }

static void univ8250_config_port(struct uart_port *port, int flags)
{ … }

static int univ8250_request_port(struct uart_port *port)
{ … }

static void univ8250_release_port(struct uart_port *port)
{ … }

void univ8250_rsa_support(struct uart_ops *ops)
{ … }

module_param_hw_array(probe_rsa, ulong, ioport, &probe_rsa_count, 0444);
MODULE_PARM_DESC(…) …;

#ifdef CONFIG_SERIAL_8250_DEPRECATED_OPTIONS
#ifndef MODULE
/*
 * Keep the old "8250" name working as well for the module options so we don't
 * break people. We need to keep the names identical and the convenient macros
 * will happily refuse to let us do that by failing the build with redefinition
 * errors of global variables.  So we stick them inside a dummy function to
 * avoid those conflicts.  The options still get parsed, and the redefined
 * MODULE_PARAM_PREFIX lets us keep the "8250." syntax alive.
 *
 * This is hacky. I'm sorry.
 */
static void __used rsa8250_options(void)
{ … }
#endif
#endif