wanrouter: delete now orphaned header content, files/drivers

The wanrouter support was identified earlier as unused for years,
and so the previous commit totally decoupled it from the kernel,
leaving the related wanrouter files present, but totally inert.

Here we take the final step in that cleanup, by doing a wholesale
removal of these files.  The two step process is used so that the
large deletion is decoupled from the git history of files that we
still care about.

The drivers deleted here all were dependent on the Kconfig setting
CONFIG_WAN_ROUTER_DRIVERS.

A stub wanrouter.h header (kernel & uapi) are left behind so that
drivers/isdn/i4l/isdn_x25iface.c continues to compile, and so that
we don't accidentally break userspace that expected these defines.

Cc: Joe Perches <joe@perches.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

1 files changed, 0 insertions, 346 deletions

diff --git a/drivers/net/wan/cycx_main.c b/drivers/net/wan/cycx_main.c
deleted file mode 100644
index 81fbbad406be..000000000000
--- a/drivers/net/wan/cycx_main.c
+++ /dev/null
@@ -1,346 +0,0 @@
-/*
-* cycx_main.c	Cyclades Cyclom 2X WAN Link Driver. Main module.
-*
-* Author:	Arnaldo Carvalho de Melo <acme@conectiva.com.br>
-*
-* Copyright:	(c) 1998-2003 Arnaldo Carvalho de Melo
-*
-* Based on sdlamain.c by Gene Kozin <genek@compuserve.com> &
-*			 Jaspreet Singh	<jaspreet@sangoma.com>
-*
-*		This program is free software; you can redistribute it and/or
-*		modify it under the terms of the GNU General Public License
-*		as published by the Free Software Foundation; either version
-*		2 of the License, or (at your option) any later version.
-* ============================================================================
-* Please look at the bitkeeper changelog (or any other scm tool that ends up
-* importing bitkeeper changelog or that replaces bitkeeper in the future as
-* main tool for linux development).
-* 
-* 2001/05/09	acme		Fix MODULE_DESC for debug, .bss nitpicks,
-* 				some cleanups
-* 2000/07/13	acme		remove useless #ifdef MODULE and crap
-*				#if KERNEL_VERSION > blah
-* 2000/07/06	acme		__exit at cyclomx_cleanup
-* 2000/04/02	acme		dprintk and cycx_debug
-* 				module_init/module_exit
-* 2000/01/21	acme		rename cyclomx_open to cyclomx_mod_inc_use_count
-*				and cyclomx_close to cyclomx_mod_dec_use_count
-* 2000/01/08	acme		cleanup
-* 1999/11/06	acme		cycx_down back to life (it needs to be
-*				called to iounmap the dpmbase)
-* 1999/08/09	acme		removed references to enable_tx_int
-*				use spinlocks instead of cli/sti in
-*				cyclomx_set_state
-* 1999/05/19	acme		works directly linked into the kernel
-*				init_waitqueue_head for 2.3.* kernel
-* 1999/05/18	acme		major cleanup (polling not needed), etc
-* 1998/08/28	acme		minor cleanup (ioctls for firmware deleted)
-*				queue_task activated
-* 1998/08/08	acme		Initial version.
-*/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/stddef.h>	/* offsetof(), etc. */
-#include <linux/errno.h>	/* return codes */
-#include <linux/string.h>	/* inline memset(), etc. */
-#include <linux/slab.h>		/* kmalloc(), kfree() */
-#include <linux/kernel.h>	/* printk(), and other useful stuff */
-#include <linux/module.h>	/* support for loadable modules */
-#include <linux/ioport.h>	/* request_region(), release_region() */
-#include <linux/wanrouter.h>	/* WAN router definitions */
-#include <linux/cyclomx.h>	/* cyclomx common user API definitions */
-#include <linux/init.h>         /* __init (when not using as a module) */
-#include <linux/interrupt.h>
-
-unsigned int cycx_debug;
-
-MODULE_AUTHOR("Arnaldo Carvalho de Melo");
-MODULE_DESCRIPTION("Cyclom 2X Sync Card Driver.");
-MODULE_LICENSE("GPL");
-module_param(cycx_debug, int, 0);
-MODULE_PARM_DESC(cycx_debug, "cyclomx debug level");
-
-/* Defines & Macros */
-
-#define	CYCX_DRV_VERSION	0	/* version number */
-#define	CYCX_DRV_RELEASE	11	/* release (minor version) number */
-#define	CYCX_MAX_CARDS		1	/* max number of adapters */
-
-#define	CONFIG_CYCX_CARDS 1
-
-/* Function Prototypes */
-
-/* WAN link driver entry points */
-static int cycx_wan_setup(struct wan_device *wandev, wandev_conf_t *conf);
-static int cycx_wan_shutdown(struct wan_device *wandev);
-
-/* Miscellaneous functions */
-static irqreturn_t cycx_isr(int irq, void *dev_id);
-
-/* Global Data
- * Note: All data must be explicitly initialized!!!
- */
-
-/* private data */
-static const char cycx_drvname[] = "cyclomx";
-static const char cycx_fullname[] = "CYCLOM 2X(tm) Sync Card Driver";
-static const char cycx_copyright[] = "(c) 1998-2003 Arnaldo Carvalho de Melo "
-			  "<acme@conectiva.com.br>";
-static int cycx_ncards = CONFIG_CYCX_CARDS;
-static struct cycx_device *cycx_card_array;	/* adapter data space */
-
-/* Kernel Loadable Module Entry Points */
-
-/*
- * Module 'insert' entry point.
- * o print announcement
- * o allocate adapter data space
- * o initialize static data
- * o register all cards with WAN router
- * o calibrate Cyclom 2X shared memory access delay.
- *
- * Return:	0	Ok
- *		< 0	error.
- * Context:	process
- */
-static int __init cycx_init(void)
-{
-	int cnt, err = -ENOMEM;
-
-	pr_info("%s v%u.%u %s\n",
-		cycx_fullname, CYCX_DRV_VERSION, CYCX_DRV_RELEASE,
-		cycx_copyright);
-
-	/* Verify number of cards and allocate adapter data space */
-	cycx_ncards = min_t(int, cycx_ncards, CYCX_MAX_CARDS);
-	cycx_ncards = max_t(int, cycx_ncards, 1);
-	cycx_card_array = kcalloc(cycx_ncards, sizeof(struct cycx_device), GFP_KERNEL);
-	if (!cycx_card_array)
-		goto out;
-
-
-	/* Register adapters with WAN router */
-	for (cnt = 0; cnt < cycx_ncards; ++cnt) {
-		struct cycx_device *card = &cycx_card_array[cnt];
-		struct wan_device *wandev = &card->wandev;
-
-		sprintf(card->devname, "%s%d", cycx_drvname, cnt + 1);
-		wandev->magic    = ROUTER_MAGIC;
-		wandev->name     = card->devname;
-		wandev->private  = card;
-		wandev->setup    = cycx_wan_setup;
-		wandev->shutdown = cycx_wan_shutdown;
-		err = register_wan_device(wandev);
-
-		if (err) {
-			pr_err("%s registration failed with error %d!\n",
-			       card->devname, err);
-			break;
-		}
-	}
-
-	err = -ENODEV;
-	if (!cnt) {
-		kfree(cycx_card_array);
-		goto out;
-	}
-	err = 0;
-	cycx_ncards = cnt;	/* adjust actual number of cards */
-out:	return err;
-}
-
-/*
- * Module 'remove' entry point.
- * o unregister all adapters from the WAN router
- * o release all remaining system resources
- */
-static void __exit cycx_exit(void)
-{
-	int i = 0;
-
-	for (; i < cycx_ncards; ++i) {
-		struct cycx_device *card = &cycx_card_array[i];
-		unregister_wan_device(card->devname);
-	}
-
-	kfree(cycx_card_array);
-}
-
-/* WAN Device Driver Entry Points */
-/*
- * Setup/configure WAN link driver.
- * o check adapter state
- * o make sure firmware is present in configuration
- * o allocate interrupt vector
- * o setup Cyclom 2X hardware
- * o call appropriate routine to perform protocol-specific initialization
- *
- * This function is called when router handles ROUTER_SETUP IOCTL. The
- * configuration structure is in kernel memory (including extended data, if
- * any).
- */
-static int cycx_wan_setup(struct wan_device *wandev, wandev_conf_t *conf)
-{
-	int rc = -EFAULT;
-	struct cycx_device *card;
-	int irq;
-
-	/* Sanity checks */
-
-	if (!wandev || !wandev->private || !conf)
-		goto out;
-
-	card = wandev->private;
-	rc = -EBUSY;
-	if (wandev->state != WAN_UNCONFIGURED)
-		goto out;
-
-	rc = -EINVAL;
-	if (!conf->data_size || !conf->data) {
-		pr_err("%s: firmware not found in configuration data!\n",
-		       wandev->name);
-		goto out;
-	}
-
-	if (conf->irq <= 0) {
-		pr_err("%s: can't configure without IRQ!\n", wandev->name);
-		goto out;
-	}
-
-	/* Allocate IRQ */
-	irq = conf->irq == 2 ? 9 : conf->irq;	/* IRQ2 -> IRQ9 */
-
-	if (request_irq(irq, cycx_isr, 0, wandev->name, card)) {
-		pr_err("%s: can't reserve IRQ %d!\n", wandev->name, irq);
-		goto out;
-	}
-
-	/* Configure hardware, load firmware, etc. */
-	memset(&card->hw, 0, sizeof(card->hw));
-	card->hw.irq	 = irq;
-	card->hw.dpmsize = CYCX_WINDOWSIZE;
-	card->hw.fwid	 = CFID_X25_2X;
-	spin_lock_init(&card->lock);
-	init_waitqueue_head(&card->wait_stats);
-
-	rc = cycx_setup(&card->hw, conf->data, conf->data_size, conf->maddr);
-	if (rc)
-		goto out_irq;
-
-	/* Initialize WAN device data space */
-	wandev->irq       = irq;
-	wandev->dma       = wandev->ioport = 0;
-	wandev->maddr     = (unsigned long)card->hw.dpmbase;
-	wandev->msize     = card->hw.dpmsize;
-	wandev->hw_opt[2] = 0;
-	wandev->hw_opt[3] = card->hw.fwid;
-
-	/* Protocol-specific initialization */
-	switch (card->hw.fwid) {
-#ifdef CONFIG_CYCLOMX_X25
-	case CFID_X25_2X:
-		rc = cycx_x25_wan_init(card, conf);
-		break;
-#endif
-	default:
-		pr_err("%s: this firmware is not supported!\n", wandev->name);
-		rc = -EINVAL;
-	}
-
-	if (rc) {
-		cycx_down(&card->hw);
-		goto out_irq;
-	}
-
-	rc = 0;
-out:
-	return rc;
-out_irq:
-	free_irq(irq, card);
-	goto out;
-}
-
-/*
- * Shut down WAN link driver.
- * o shut down adapter hardware
- * o release system resources.
- *
- * This function is called by the router when device is being unregistered or
- * when it handles ROUTER_DOWN IOCTL.
- */
-static int cycx_wan_shutdown(struct wan_device *wandev)
-{
-	int ret = -EFAULT;
-	struct cycx_device *card;
-
-	/* sanity checks */
-	if (!wandev || !wandev->private)
-		goto out;
-
-	ret = 0;
-	if (wandev->state == WAN_UNCONFIGURED)
-		goto out;
-
-	card = wandev->private;
-	wandev->state = WAN_UNCONFIGURED;
-	cycx_down(&card->hw);
-	pr_info("%s: irq %d being freed!\n", wandev->name, wandev->irq);
-	free_irq(wandev->irq, card);
-out:	return ret;
-}
-
-/* Miscellaneous */
-/*
- * Cyclom 2X Interrupt Service Routine.
- * o acknowledge Cyclom 2X hardware interrupt.
- * o call protocol-specific interrupt service routine, if any.
- */
-static irqreturn_t cycx_isr(int irq, void *dev_id)
-{
-	struct cycx_device *card = dev_id;
-
-	if (card->wandev.state == WAN_UNCONFIGURED)
-		goto out;
-
-	if (card->in_isr) {
-		pr_warn("%s: interrupt re-entrancy on IRQ %d!\n",
-			card->devname, card->wandev.irq);
-		goto out;
-	}
-
-	if (card->isr)
-		card->isr(card);
-	return IRQ_HANDLED;
-out:
-	return IRQ_NONE;
-}
-
-/* Set WAN device state.  */
-void cycx_set_state(struct cycx_device *card, int state)
-{
-	unsigned long flags;
-	char *string_state = NULL;
-
-	spin_lock_irqsave(&card->lock, flags);
-
-	if (card->wandev.state != state) {
-		switch (state) {
-		case WAN_CONNECTED:
-			string_state = "connected!";
-			break;
-		case WAN_DISCONNECTED:
-			string_state = "disconnected!";
-			break;
-		}
-		pr_info("%s: link %s\n", card->devname, string_state);
-		card->wandev.state = state;
-	}
-
-	card->state_tick = jiffies;
-	spin_unlock_irqrestore(&card->lock, flags);
-}
-
-module_init(cycx_init);
-module_exit(cycx_exit);