net: atm: remove support for ZeitNet ZN122x ATM devices

This driver received nothing but automated fixes in the last 15 years.
Since it's using virt_to_bus it's unlikely to be used on any modern
platform.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 266 deletions

diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c
deleted file mode 100644
index 239852d85558..000000000000
--- a/drivers/atm/uPD98402.c
+++ /dev/null
@@ -1,266 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* drivers/atm/uPD98402.c - NEC uPD98402 (PHY) declarations */
- 
-/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
- 
-
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <linux/atmdev.h>
-#include <linux/sonet.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-#include <linux/atomic.h>
-
-#include "uPD98402.h"
-
-
-#if 0
-#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
-#else
-#define DPRINTK(format,args...)
-#endif
-
-
-struct uPD98402_priv {
-	struct k_sonet_stats sonet_stats;/* link diagnostics */
-	unsigned char framing;		/* SONET/SDH framing */
-	int loop_mode;			/* loopback mode */
-	spinlock_t lock;
-};
-
-
-#define PRIV(dev) ((struct uPD98402_priv *) dev->phy_data)
-
-#define PUT(val,reg) dev->ops->phy_put(dev,val,uPD98402_##reg)
-#define GET(reg) dev->ops->phy_get(dev,uPD98402_##reg)
-
-
-static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int zero)
-{
-	struct sonet_stats tmp;
- 	int error = 0;
-
-	atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
-	sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp);
-	if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp));
-	if (zero && !error) {
-		/* unused fields are reported as -1, but we must not "adjust"
-		   them */
-		tmp.corr_hcs = tmp.tx_cells = tmp.rx_cells = 0;
-		sonet_subtract_stats(&PRIV(dev)->sonet_stats,&tmp);
-	}
-	return error ? -EFAULT : 0;
-}
-
-
-static int set_framing(struct atm_dev *dev,unsigned char framing)
-{
-	static const unsigned char sonet[] = { 1,2,3,0 };
-	static const unsigned char sdh[] = { 1,0,0,2 };
-	const char *set;
-	unsigned long flags;
- 
-	switch (framing) {
-		case SONET_FRAME_SONET:
-			set = sonet;
-			break;
-		case SONET_FRAME_SDH:
-			set = sdh;
-			break;
-		default:
-			return -EINVAL;
-	}
-	spin_lock_irqsave(&PRIV(dev)->lock, flags);
-	PUT(set[0],C11T);
-	PUT(set[1],C12T);
-	PUT(set[2],C13T);
-	PUT((GET(MDR) & ~uPD98402_MDR_SS_MASK) | (set[3] <<
-	    uPD98402_MDR_SS_SHIFT),MDR);
-	spin_unlock_irqrestore(&PRIV(dev)->lock, flags);
-	return 0;
-}
-
-
-static int get_sense(struct atm_dev *dev,u8 __user *arg)
-{
-	unsigned long flags;
-	unsigned char s[3];
-
-	spin_lock_irqsave(&PRIV(dev)->lock, flags);
-	s[0] = GET(C11R);
-	s[1] = GET(C12R);
-	s[2] = GET(C13R);
-	spin_unlock_irqrestore(&PRIV(dev)->lock, flags);
-	return (put_user(s[0], arg) || put_user(s[1], arg+1) ||
-	    put_user(s[2], arg+2) || put_user(0xff, arg+3) ||
-	    put_user(0xff, arg+4) || put_user(0xff, arg+5)) ? -EFAULT : 0;
-}
-
-
-static int set_loopback(struct atm_dev *dev,int mode)
-{
-	unsigned char mode_reg;
-
-	mode_reg = GET(MDR) & ~(uPD98402_MDR_TPLP | uPD98402_MDR_ALP |
-	    uPD98402_MDR_RPLP);
-	switch (__ATM_LM_XTLOC(mode)) {
-		case __ATM_LM_NONE:
-			break;
-		case __ATM_LM_PHY:
-			mode_reg |= uPD98402_MDR_TPLP;
-			break;
-		case __ATM_LM_ATM:
-			mode_reg |= uPD98402_MDR_ALP;
-			break;
-		default:
-			return -EINVAL;
-	}
-	switch (__ATM_LM_XTRMT(mode)) {
-		case __ATM_LM_NONE:
-			break;
-		case __ATM_LM_PHY:
-			mode_reg |= uPD98402_MDR_RPLP;
-			break;
-		default:
-			return -EINVAL;
-	}
-	PUT(mode_reg,MDR);
-	PRIV(dev)->loop_mode = mode;
-	return 0;
-}
-
-
-static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
-{
-	switch (cmd) {
-
-		case SONET_GETSTATZ:
-                case SONET_GETSTAT:
-			return fetch_stats(dev,arg, cmd == SONET_GETSTATZ);
-		case SONET_SETFRAMING:
-			return set_framing(dev, (int)(unsigned long)arg);
-		case SONET_GETFRAMING:
-			return put_user(PRIV(dev)->framing,(int __user *)arg) ?
-			    -EFAULT : 0;
-		case SONET_GETFRSENSE:
-			return get_sense(dev,arg);
-		case ATM_SETLOOP:
-			return set_loopback(dev, (int)(unsigned long)arg);
-		case ATM_GETLOOP:
-			return put_user(PRIV(dev)->loop_mode,(int __user *)arg) ?
-			    -EFAULT : 0;
-		case ATM_QUERYLOOP:
-			return put_user(ATM_LM_LOC_PHY | ATM_LM_LOC_ATM |
-			    ATM_LM_RMT_PHY,(int __user *)arg) ? -EFAULT : 0;
-		default:
-			return -ENOIOCTLCMD;
-	}
-}
-
-
-#define ADD_LIMITED(s,v) \
-    { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \
-    if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \
-	atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); }
-
-
-static void stat_event(struct atm_dev *dev)
-{
-	unsigned char events;
-
-	events = GET(PCR);
-	if (events & uPD98402_PFM_PFEB) ADD_LIMITED(path_febe,PFECB);
-	if (events & uPD98402_PFM_LFEB) ADD_LIMITED(line_febe,LECCT);
-	if (events & uPD98402_PFM_B3E) ADD_LIMITED(path_bip,B3ECT);
-	if (events & uPD98402_PFM_B2E) ADD_LIMITED(line_bip,B2ECT);
-	if (events & uPD98402_PFM_B1E) ADD_LIMITED(section_bip,B1ECT);
-}
-
-
-#undef ADD_LIMITED
-
-
-static void uPD98402_int(struct atm_dev *dev)
-{
-	static unsigned long silence = 0;
-	unsigned char reason;
-
-	while ((reason = GET(PICR))) {
-		if (reason & uPD98402_INT_LOS)
-			printk(KERN_NOTICE "%s(itf %d): signal lost\n",
-			    dev->type,dev->number);
-		if (reason & uPD98402_INT_PFM) stat_event(dev);
-		if (reason & uPD98402_INT_PCO) {
-			(void) GET(PCOCR); /* clear interrupt cause */
-			atomic_add(GET(HECCT),
-			    &PRIV(dev)->sonet_stats.uncorr_hcs);
-		}
-		if ((reason & uPD98402_INT_RFO) && 
-		    (time_after(jiffies, silence) || silence == 0)) {
-			printk(KERN_WARNING "%s(itf %d): uPD98402 receive "
-			    "FIFO overflow\n",dev->type,dev->number);
-			silence = (jiffies+HZ/2)|1;
-		}
-	}
-}
-
-
-static int uPD98402_start(struct atm_dev *dev)
-{
-	DPRINTK("phy_start\n");
-	if (!(dev->phy_data = kmalloc(sizeof(struct uPD98402_priv),GFP_KERNEL)))
-		return -ENOMEM;
-	spin_lock_init(&PRIV(dev)->lock);
-	memset(&PRIV(dev)->sonet_stats,0,sizeof(struct k_sonet_stats));
-	(void) GET(PCR); /* clear performance events */
-	PUT(uPD98402_PFM_FJ,PCMR); /* ignore frequency adj */
-	(void) GET(PCOCR); /* clear overflows */
-	PUT(~uPD98402_PCO_HECC,PCOMR);
-	(void) GET(PICR); /* clear interrupts */
-	PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO |
-	  uPD98402_INT_LOS),PIMR); /* enable them */
-	(void) fetch_stats(dev,NULL,1); /* clear kernel counters */
-	atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1);
-	atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1);
-	atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1);
-	return 0;
-}
-
-
-static int uPD98402_stop(struct atm_dev *dev)
-{
-	/* let SAR driver worry about stopping interrupts */
-	kfree(PRIV(dev));
-	return 0;
-}
-
-
-static const struct atmphy_ops uPD98402_ops = {
-	.start		= uPD98402_start,
-	.ioctl		= uPD98402_ioctl,
-	.interrupt	= uPD98402_int,
-	.stop		= uPD98402_stop,
-};
-
-
-int uPD98402_init(struct atm_dev *dev)
-{
-DPRINTK("phy_init\n");
-	dev->phy = &uPD98402_ops;
-	return 0;
-}
-
-
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(uPD98402_init);
-
-static __init int uPD98402_module_init(void)
-{
-	return 0;
-}
-module_init(uPD98402_module_init);
-/* module_exit not defined so not unloadable */