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path: root/drivers/net/wan/cycx_main.c
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Diffstat (limited to 'drivers/net/wan/cycx_main.c')
-rw-r--r--drivers/net/wan/cycx_main.c346
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);