linux/drivers/net/wan/wanxl.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * wanXL serial card driver for Linux
 * host part
 *
 * Copyright (C) 2003 Krzysztof Halasa <[email protected]>
 *
 * Status:
 *   - Only DTE (external clock) support with NRZ and NRZI encodings
 *   - wanXL100 will require minor driver modifications, no access to hw
 */

#define pr_fmt(fmt) …

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/netdevice.h>
#include <linux/hdlc.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <asm/io.h>

#include "wanxl.h"

static const char *version = …;

#define PLX_CTL_RESET …

#undef DEBUG_PKT
#undef DEBUG_PCI

/* MAILBOX #1 - PUTS COMMANDS */
#define MBX1_CMD_ABORTJ …
#ifdef __LITTLE_ENDIAN
#define MBX1_CMD_BSWAP …
#else
#define MBX1_CMD_BSWAP …
#endif

/* MAILBOX #2 - DRAM SIZE */
#define MBX2_MEMSZ_MASK …

struct port { … };

struct card_status { … };

struct card { … };

static inline struct port *dev_to_port(struct net_device *dev)
{ … }

static inline port_status_t *get_status(struct port *port)
{ … }

#ifdef DEBUG_PCI
static inline dma_addr_t pci_map_single_debug(struct pci_dev *pdev, void *ptr,
					      size_t size, int direction)
{
	dma_addr_t addr = dma_map_single(&pdev->dev, ptr, size, direction);

	if (addr + size > 0x100000000LL)
		pr_crit("%s: pci_map_single() returned memory at 0x%llx!\n",
			pci_name(pdev), (unsigned long long)addr);
	return addr;
}

#undef pci_map_single
#define pci_map_single …
#endif

/* Cable and/or personality module change interrupt service */
static inline void wanxl_cable_intr(struct port *port)
{ … }

/* Transmit complete interrupt service */
static inline void wanxl_tx_intr(struct port *port)
{ … }

/* Receive complete interrupt service */
static inline void wanxl_rx_intr(struct card *card)
{ … }

static irqreturn_t wanxl_intr(int irq, void *dev_id)
{ … }

static netdev_tx_t wanxl_xmit(struct sk_buff *skb, struct net_device *dev)
{ … }

static int wanxl_attach(struct net_device *dev, unsigned short encoding,
			unsigned short parity)
{ … }

static int wanxl_ioctl(struct net_device *dev, struct if_settings *ifs)
{ … }

static int wanxl_open(struct net_device *dev)
{ … }

static int wanxl_close(struct net_device *dev)
{ … }

static struct net_device_stats *wanxl_get_stats(struct net_device *dev)
{ … }

static int wanxl_puts_command(struct card *card, u32 cmd)
{ … }

static void wanxl_reset(struct card *card)
{ … }

static void wanxl_pci_remove_one(struct pci_dev *pdev)
{ … }

#include "wanxlfw.inc"

static const struct net_device_ops wanxl_ops = …;

static int wanxl_pci_init_one(struct pci_dev *pdev,
			      const struct pci_device_id *ent)
{ … }

static const struct pci_device_id wanxl_pci_tbl[] = …;

static struct pci_driver wanxl_pci_driver = …;

static int __init wanxl_init_module(void)
{ … }

static void __exit wanxl_cleanup_module(void)
{ … }

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_DEVICE_TABLE(pci, wanxl_pci_tbl);

module_init(…) …;
module_exit(wanxl_cleanup_module);