Commit ec829051 authored by Pavel Roskin's avatar Pavel Roskin Committed by Jeff Garzik
Browse files

[PATCH] orinoco: New driver - orinoco_nortel. 



Signed-off-by: default avatarPavel Roskin <proski@gnu.org>

diff-tree dce61aef99ceb57370b70222dc34d788666c0ac3 (from ceb6695092be8dcdfe2dec6ee5097d613011489d)
Author: Pavel Roskin <proski@gnu.org>
Date:   Thu Sep 1 15:50:55 2005 -0400

    New driver - orinoco_nortel.

    This is a driver for Nortel emobility PCI adaptors, which consist of an
    Orinoco compatible PCMCIA card and a simple PCI-to-PCMCIA bridge.  The
    driver initializes the device and uses Orinoco core driver for actual
    wireless networking.
Signed-off-by: default avatarJeff Garzik <jgarzik@pobox.com>
parent 8c09e16b

drivers/net/wireless/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -309,6 +309,15 @@ config TMD_HERMES 
	  PCI <-> PCMCIA bridge.  Several vendors sell such adaptors so that

	  802.11b PCMCIA cards can be used in desktop machines.



config NORTEL_HERMES

	tristate "Nortel emobility PCI adaptor support"

	depends on PCI && HERMES

	help

	  Enable support for PCMCIA cards supported by the "Hermes" (aka

	  orinoco) driver when used in Nortel emobility PCI adaptors.  These

	  adaptors are not full PCMCIA controllers, but act as a more limited

	  PCI <-> PCMCIA bridge.



config PCI_HERMES

	tristate "Prism 2.5 PCI 802.11b adaptor support"

	depends on PCI && HERMES

drivers/net/wireless/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ obj-$(CONFIG_APPLE_AIRPORT) += airport.o 
obj-$(CONFIG_PLX_HERMES)	+= orinoco_plx.o

obj-$(CONFIG_PCI_HERMES)	+= orinoco_pci.o

obj-$(CONFIG_TMD_HERMES)	+= orinoco_tmd.o

obj-$(CONFIG_NORTEL_HERMES)	+= orinoco_nortel.o



obj-$(CONFIG_AIRO)		+= airo.o

obj-$(CONFIG_AIRO_CS)		+= airo_cs.o airo.o

drivers/net/wireless/orinoco_nortel.c

0 → 100644
+324 −0
Original line number Diff line number Diff line 
/* orinoco_nortel.c

 * 

 * Driver for Prism II devices which would usually be driven by orinoco_cs,

 * but are connected to the PCI bus by a Nortel PCI-PCMCIA-Adapter. 

 *

 * Copyright (C) 2002 Tobias Hoffmann

 *           (C) 2003 Christoph Jungegger <disdos@traum404.de>

 *

 * Some of this code is borrowed from orinoco_plx.c

 *	Copyright (C) 2001 Daniel Barlow

 * Some of this code is borrowed from orinoco_pci.c 

 *  Copyright (C) 2001 Jean Tourrilhes

 * Some of this code is "inspired" by linux-wlan-ng-0.1.10, but nothing

 * has been copied from it. linux-wlan-ng-0.1.10 is originally :

 *	Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.

 * 

 * The contents of this file are subject to the Mozilla Public License

 * Version 1.1 (the "License"); you may not use this file except in

 * compliance with the License. You may obtain a copy of the License

 * at http://www.mozilla.org/MPL/

 *

 * Software distributed under the License is distributed on an "AS IS"

 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See

 * the License for the specific language governing rights and

 * limitations under the License.

 *

 * Alternatively, the contents of this file may be used under the

 * terms of the GNU General Public License version 2 (the "GPL"), in

 * which case the provisions of the GPL are applicable instead of the

 * above.  If you wish to allow the use of your version of this file

 * only under the terms of the GPL and not to allow others to use your

 * version of this file under the MPL, indicate your decision by

 * deleting the provisions above and replace them with the notice and

 * other provisions required by the GPL.  If you do not delete the

 * provisions above, a recipient may use your version of this file

 * under either the MPL or the GPL.

 */



#define DRIVER_NAME "orinoco_nortel"

#define PFX DRIVER_NAME ": "



#include <linux/config.h>



#include <linux/module.h>

#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/sched.h>

#include <linux/ptrace.h>

#include <linux/slab.h>

#include <linux/string.h>

#include <linux/timer.h>

#include <linux/ioport.h>

#include <asm/uaccess.h>

#include <asm/io.h>

#include <asm/system.h>

#include <linux/netdevice.h>

#include <linux/if_arp.h>

#include <linux/etherdevice.h>

#include <linux/list.h>

#include <linux/pci.h>

#include <linux/fcntl.h>



#include <pcmcia/cisreg.h>



#include "hermes.h"

#include "orinoco.h"



#define COR_OFFSET    (0xe0)	/* COR attribute offset of Prism2 PC card */

#define COR_VALUE     (COR_LEVEL_REQ | COR_FUNC_ENA)	/* Enable PC card with interrupt in level trigger */





/* Nortel specific data */

struct nortel_pci_card {

	unsigned long iobase1;

	unsigned long iobase2;

};



/*

 * Do a soft reset of the PCI card using the Configuration Option Register

 * We need this to get going...

 * This is the part of the code that is strongly inspired from wlan-ng

 *

 * Note bis : Don't try to access HERMES_CMD during the reset phase.

 * It just won't work !

 */

static int nortel_pci_cor_reset(struct orinoco_private *priv)

{

	struct nortel_pci_card *card = priv->card;



	/* Assert the reset until the card notice */

	outw_p(8, card->iobase1 + 2);

	inw(card->iobase2 + COR_OFFSET);

	outw_p(0x80, card->iobase2 + COR_OFFSET);

	mdelay(1);



	/* Give time for the card to recover from this hard effort */

	outw_p(0, card->iobase2 + COR_OFFSET);

	outw_p(0, card->iobase2 + COR_OFFSET);

	mdelay(1);



	/* set COR as usual */

	outw_p(COR_VALUE, card->iobase2 + COR_OFFSET);

	outw_p(COR_VALUE, card->iobase2 + COR_OFFSET);

	mdelay(1);



	outw_p(0x228, card->iobase1 + 2);



	return 0;

}



int nortel_pci_hw_init(struct nortel_pci_card *card)

{

	int i;

	u32 reg;



	/* setup bridge */

	if (inw(card->iobase1) & 1) {

		printk(KERN_ERR PFX "brg1 answer1 wrong\n");

		return -EBUSY;

	}

	outw_p(0x118, card->iobase1 + 2);

	outw_p(0x108, card->iobase1 + 2);

	mdelay(30);

	outw_p(0x8, card->iobase1 + 2);

	for (i = 0; i < 30; i++) {

		mdelay(30);

		if (inw(card->iobase1) & 0x10) {

			break;

		}

	}

	if (i == 30) {

		printk(KERN_ERR PFX "brg1 timed out\n");

		return -EBUSY;

	}

	if (inw(card->iobase2 + 0xe0) & 1) {

		printk(KERN_ERR PFX "brg2 answer1 wrong\n");

		return -EBUSY;

	}

	if (inw(card->iobase2 + 0xe2) & 1) {

		printk(KERN_ERR PFX "brg2 answer2 wrong\n");

		return -EBUSY;

	}

	if (inw(card->iobase2 + 0xe4) & 1) {

		printk(KERN_ERR PFX "brg2 answer3 wrong\n");

		return -EBUSY;

	}



	/* set the PCMCIA COR-Register */

	outw_p(COR_VALUE, card->iobase2 + COR_OFFSET);

	mdelay(1);

	reg = inw(card->iobase2 + COR_OFFSET);

	if (reg != COR_VALUE) {

		printk(KERN_ERR PFX "Error setting COR value (reg=%x)\n",

		       reg);

		return -EBUSY;

	}



	/* set leds */

	outw_p(1, card->iobase1 + 10);

	return 0;

}



static int nortel_pci_init_one(struct pci_dev *pdev,

			       const struct pci_device_id *ent)

{

	int err;

	struct orinoco_private *priv;

	struct nortel_pci_card *card;

	struct net_device *dev;

	void __iomem *iomem;



	err = pci_enable_device(pdev);

	if (err) {

		printk(KERN_ERR PFX "Cannot enable PCI device\n");

		return err;

	}



	err = pci_request_regions(pdev, DRIVER_NAME);

	if (err != 0) {

		printk(KERN_ERR PFX "Cannot obtain PCI resources\n");

		goto fail_resources;

	}



	iomem = pci_iomap(pdev, 3, 0);

	if (!iomem) {

		err = -ENOMEM;

		goto fail_map_io;

	}



	/* Allocate network device */

	dev = alloc_orinocodev(sizeof(*card), nortel_pci_cor_reset);

	if (!dev) {

		printk(KERN_ERR PFX "Cannot allocate network device\n");

		err = -ENOMEM;

		goto fail_alloc;

	}



	priv = netdev_priv(dev);

	card = priv->card;

	card->iobase1 = pci_resource_start(pdev, 0);

	card->iobase2 = pci_resource_start(pdev, 1);

	dev->base_addr = pci_resource_start(pdev, 2);

	SET_MODULE_OWNER(dev);

	SET_NETDEV_DEV(dev, &pdev->dev);



	hermes_struct_init(&priv->hw, iomem, HERMES_16BIT_REGSPACING);



	printk(KERN_DEBUG PFX "Detected Nortel PCI device at %s irq:%d, "

	       "io addr:0x%lx\n", pci_name(pdev), pdev->irq, dev->base_addr);



	err = request_irq(pdev->irq, orinoco_interrupt, SA_SHIRQ,

			  dev->name, dev);

	if (err) {

		printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq);

		err = -EBUSY;

		goto fail_irq;

	}

	dev->irq = pdev->irq;



	err = nortel_pci_hw_init(card);

	if (err) {

		printk(KERN_ERR PFX "Hardware initialization failed\n");

		goto fail;

	}



	err = nortel_pci_cor_reset(priv);

	if (err) {

		printk(KERN_ERR PFX "Initial reset failed\n");

		goto fail;

	}





	err = register_netdev(dev);

	if (err) {

		printk(KERN_ERR PFX "Cannot register network device\n");

		goto fail;

	}



	pci_set_drvdata(pdev, dev);



	return 0;



 fail:

	free_irq(pdev->irq, dev);



 fail_irq:

	pci_set_drvdata(pdev, NULL);

	free_orinocodev(dev);



 fail_alloc:

	pci_iounmap(pdev, iomem);



 fail_map_io:

	pci_release_regions(pdev);



 fail_resources:

	pci_disable_device(pdev);



	return err;

}



static void __devexit nortel_pci_remove_one(struct pci_dev *pdev)

{

	struct net_device *dev = pci_get_drvdata(pdev);

	struct orinoco_private *priv = netdev_priv(dev);

	struct nortel_pci_card *card = priv->card;



	/* clear leds */

	outw_p(0, card->iobase1 + 10);



	unregister_netdev(dev);

	free_irq(dev->irq, dev);

	pci_set_drvdata(pdev, NULL);

	free_orinocodev(dev);

	pci_iounmap(pdev, priv->hw.iobase);

	pci_release_regions(pdev);

	pci_disable_device(pdev);

}





static struct pci_device_id nortel_pci_id_table[] = {

	/* Nortel emobility PCI */

	{0x126c, 0x8030, PCI_ANY_ID, PCI_ANY_ID,},

	{0,},

};



MODULE_DEVICE_TABLE(pci, nortel_pci_id_table);



static struct pci_driver nortel_pci_driver = {

	.name = DRIVER_NAME,

	.id_table = nortel_pci_id_table,

	.probe = nortel_pci_init_one,

	.remove = __devexit_p(nortel_pci_remove_one),

};



static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION

	" (Tobias Hoffmann & Christoph Jungegger <disdos@traum404.de>)";

MODULE_AUTHOR("Christoph Jungegger <disdos@traum404.de>");

MODULE_DESCRIPTION

    ("Driver for wireless LAN cards using the Nortel PCI bridge");

MODULE_LICENSE("Dual MPL/GPL");



static int __init nortel_pci_init(void)

{

	printk(KERN_DEBUG "%s\n", version);

	return pci_module_init(&nortel_pci_driver);

}



static void __exit nortel_pci_exit(void)

{

	pci_unregister_driver(&nortel_pci_driver);

	ssleep(1);

}



module_init(nortel_pci_init);

module_exit(nortel_pci_exit);



/*

 * Local variables:

 *  c-indent-level: 8

 *  c-basic-offset: 8

 *  tab-width: 8

 * End:

 */

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