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Release 4.11 drivers/net/wireless/intersil/orinoco/orinoco_pci.c

/* orinoco_pci.c
 *
 * Driver for Prism 2.5/3 devices that have a direct PCI interface
 * (i.e. these are not PCMCIA cards in a PCMCIA-to-PCI bridge).
 * The card contains only one PCI region, which contains all the usual
 * hermes registers, as well as the COR register.
 *
 * Current maintainers are:
 *      Pavel Roskin <proski AT gnu.org>
 * and  David Gibson <hermes AT gibson.dropbear.id.au>
 *
 * Some of this code is borrowed from orinoco_plx.c
 *      Copyright (C) 2001 Daniel Barlow <dan AT telent.net>
 * 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.
 * This file originally written by:
 *      Copyright (C) 2001 Jean Tourrilhes <jt AT hpl.hp.com>
 * And is now maintained by:
 *      (C) Copyright David Gibson, IBM Corp. 2002-2003.
 *
 * 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_pci"

#define PFX DRIVER_NAME ": "

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pci.h>

#include "orinoco.h"
#include "orinoco_pci.h"

/* Offset of the COR register of the PCI card */

#define HERMES_PCI_COR		(0x26)

/* Bitmask to reset the card */

#define HERMES_PCI_COR_MASK	(0x0080)

/* Magic timeouts for doing the reset.
 * Those times are straight from wlan-ng, and it is claimed that they
 * are necessary. Alan will kill me. Take your time and grab a coffee. */

#define HERMES_PCI_COR_ONT	(250)		
/* ms */

#define HERMES_PCI_COR_OFFT	(500)		
/* ms */

#define HERMES_PCI_COR_BUSYT	(500)		
/* ms */

/*
 * Do a soft reset of the 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 : This code is done with irq enabled. This mean that many
 * interrupts will occur while we are there. This is why we use the
 * jiffies to regulate time instead of a straight mdelay(). Usually we
 * need only around 245 iteration of the loop to do 250 ms delay.
 *
 * Note bis : Don't try to access HERMES_CMD during the reset phase.
 * It just won't work !
 */

static int orinoco_pci_cor_reset(struct orinoco_private *priv) { struct hermes *hw = &priv->hw; unsigned long timeout; u16 reg; /* Assert the reset until the card notices */ hermes_write_regn(hw, PCI_COR, HERMES_PCI_COR_MASK); mdelay(HERMES_PCI_COR_ONT); /* Give time for the card to recover from this hard effort */ hermes_write_regn(hw, PCI_COR, 0x0000); mdelay(HERMES_PCI_COR_OFFT); /* The card is ready when it's no longer busy */ timeout = jiffies + msecs_to_jiffies(HERMES_PCI_COR_BUSYT); reg = hermes_read_regn(hw, CMD); while (time_before(jiffies, timeout) && (reg & HERMES_CMD_BUSY)) { mdelay(1); reg = hermes_read_regn(hw, CMD); } /* Still busy? */ if (reg & HERMES_CMD_BUSY) { printk(KERN_ERR PFX "Busy timeout\n"); return -ETIMEDOUT; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
David Gibson12495.38%457.14%
Nicholas Mc Guire32.31%114.29%
Pavel Roskin32.31%228.57%
Total130100.00%7100.00%


static int orinoco_pci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { int err; struct orinoco_private *priv; struct orinoco_pci_card *card; void __iomem *hermes_io; 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) { printk(KERN_ERR PFX "Cannot obtain PCI resources\n"); goto fail_resources; } hermes_io = pci_iomap(pdev, 0, 0); if (!hermes_io) { printk(KERN_ERR PFX "Cannot remap chipset registers\n"); err = -EIO; goto fail_map_hermes; } /* Allocate network device */ priv = alloc_orinocodev(sizeof(*card), &pdev->dev, orinoco_pci_cor_reset, NULL); if (!priv) { printk(KERN_ERR PFX "Cannot allocate network device\n"); err = -ENOMEM; goto fail_alloc; } card = priv->card; hermes_struct_init(&priv->hw, hermes_io, HERMES_32BIT_REGSPACING); err = request_irq(pdev->irq, orinoco_interrupt, IRQF_SHARED, DRIVER_NAME, priv); if (err) { printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq); err = -EBUSY; goto fail_irq; } err = orinoco_pci_cor_reset(priv); if (err) { printk(KERN_ERR PFX "Initial reset failed\n"); goto fail; } err = orinoco_init(priv); if (err) { printk(KERN_ERR PFX "orinoco_init() failed\n"); goto fail; } err = orinoco_if_add(priv, 0, 0, NULL); if (err) { printk(KERN_ERR PFX "orinoco_if_add() failed\n"); goto fail_wiphy; } pci_set_drvdata(pdev, priv); return 0; fail_wiphy: wiphy_unregister(priv_to_wiphy(priv)); fail: free_irq(pdev->irq, priv); fail_irq: free_orinocodev(priv); fail_alloc: pci_iounmap(pdev, hermes_io); fail_map_hermes: pci_release_regions(pdev); fail_resources: pci_disable_device(pdev); return err; }

Contributors

PersonTokensPropCommitsCommitProp
David Gibson26576.15%950.00%
David Kilroy4512.93%527.78%
Pavel Roskin267.47%211.11%
Jes Sorensen113.16%15.56%
Thomas Gleixner10.29%15.56%
Total348100.00%18100.00%


static void orinoco_pci_remove_one(struct pci_dev *pdev) { struct orinoco_private *priv = pci_get_drvdata(pdev); orinoco_if_del(priv); wiphy_unregister(priv_to_wiphy(priv)); free_irq(pdev->irq, priv); free_orinocodev(priv); pci_iounmap(pdev, priv->hw.iobase); pci_release_regions(pdev); pci_disable_device(pdev); }

Contributors

PersonTokensPropCommitsCommitProp
David Gibson4057.97%440.00%
Pavel Roskin1521.74%330.00%
Jes Sorensen811.59%110.00%
David Kilroy68.70%220.00%
Total69100.00%10100.00%

static const struct pci_device_id orinoco_pci_id_table[] = { /* Intersil Prism 3 */ {0x1260, 0x3872, PCI_ANY_ID, PCI_ANY_ID,}, /* Intersil Prism 2.5 */ {0x1260, 0x3873, PCI_ANY_ID, PCI_ANY_ID,}, /* Samsung MagicLAN SWL-2210P */ {0x167d, 0xa000, PCI_ANY_ID, PCI_ANY_ID,}, {0,}, }; MODULE_DEVICE_TABLE(pci, orinoco_pci_id_table); static struct pci_driver orinoco_pci_driver = { .name = DRIVER_NAME, .id_table = orinoco_pci_id_table, .probe = orinoco_pci_init_one, .remove = orinoco_pci_remove_one, .suspend = orinoco_pci_suspend, .resume = orinoco_pci_resume, }; static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION " (Pavel Roskin <proski@gnu.org>," " David Gibson <hermes@gibson.dropbear.id.au> &" " Jean Tourrilhes <jt@hpl.hp.com>)"; MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> &" " David Gibson <hermes@gibson.dropbear.id.au>"); MODULE_DESCRIPTION("Driver for wireless LAN cards using direct PCI interface"); MODULE_LICENSE("Dual MPL/GPL");
static int __init orinoco_pci_init(void) { printk(KERN_DEBUG "%s\n", version); return pci_register_driver(&orinoco_pci_driver); }

Contributors

PersonTokensPropCommitsCommitProp
David Gibson2395.83%266.67%
Jeff Garzik14.17%133.33%
Total24100.00%3100.00%


static void __exit orinoco_pci_exit(void) { pci_unregister_driver(&orinoco_pci_driver); }

Contributors

PersonTokensPropCommitsCommitProp
David Gibson15100.00%2100.00%
Total15100.00%2100.00%

module_init(orinoco_pci_init); module_exit(orinoco_pci_exit); /* * Local variables: * c-indent-level: 8 * c-basic-offset: 8 * tab-width: 8 * End: */

Overall Contributors

PersonTokensPropCommitsCommitProp
David Gibson61679.69%1236.36%
Pavel Roskin557.12%721.21%
David Kilroy516.60%515.15%
Jes Sorensen192.46%13.03%
Evan N. McNabb101.29%13.03%
Rusty Russell81.03%13.03%
Benoit Taine60.78%13.03%
Nicholas Mc Guire30.39%13.03%
Andrey Borzenkov20.26%13.03%
Jeff Garzik10.13%13.03%
Arnaldo Carvalho de Melo10.13%13.03%
Thomas Gleixner10.13%13.03%
Total773100.00%33100.00%
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