// SPDX-License-Identifier: GPL-2.0-only
/* drivers/atm/zatm.c - ZeitNet ZN122x device driver */
/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/errno.h>
#include <linux/atm.h>
#include <linux/atmdev.h>
#include <linux/sonet.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/delay.h>
#include <linux/uio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <linux/atm_zatm.h>
#include <linux/capability.h>
#include <linux/bitops.h>
#include <linux/wait.h>
#include <linux/slab.h>
#include <asm/byteorder.h>
#include <asm/string.h>
#include <asm/io.h>
#include <linux/atomic.h>
#include <linux/uaccess.h>
#include <linux/nospec.h>
#include "uPD98401.h"
#include "uPD98402.h"
#include "zeprom.h"
#include "zatm.h"
/*
* TODO:
*
* Minor features
* - support 64 kB SDUs (will have to use multibuffer batches then :-( )
* - proper use of CDV, credit = max(1,CDVT*PCR)
* - AAL0
* - better receive timestamps
* - OAM
*/
#define ZATM_COPPER 1
#if 0
#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
#else
#define DPRINTK(format,args...)
#endif
#ifndef CONFIG_ATM_ZATM_DEBUG
#define NULLCHECK(x)
#define EVENT(s,a,b)
static void event_dump(void)
{
}
#else
/*
* NULL pointer checking
*/
#define NULLCHECK(x) \
if ((unsigned long) (x) < 0x30) printk(KERN_CRIT #x "==0x%x\n", (int) (x))
/*
* Very extensive activity logging. Greatly improves bug detection speed but
* costs a few Mbps if enabled.
*/
#define EV 64
static const char *ev[EV];
static unsigned long ev_a[EV],ev_b[EV];
static int ec = 0;
static void EVENT(const char *s,unsigned long a,unsigned long b)
{
ev[ec] = s;
ev_a[ec] = a;
ev_b[ec] = b;
ec = (ec+1) % EV;
}
static void event_dump(void)
{
int n,i;
printk(KERN_NOTICE "----- event dump follows -----\n");
for (n = 0; n < EV; n++) {
i = (ec+n) % EV;
printk(KERN_NOTICE);
printk(ev[i] ? ev[i] : "(null)",ev_a[i],ev_b[i]);
}
printk(KERN_NOTICE "----- event dump ends here -----\n");
}
#endif /* CONFIG_ATM_ZATM_DEBUG */
#define RING_BUSY 1 /* indication from do_tx that PDU has to be
backlogged */
static struct atm_dev *zatm_boards = NULL;
static unsigned long dummy[2] = {0,0};
#define zin_n(r) inl(zatm_dev->base+r*4)
#d
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