From 52409fae3e4b8d16b68b61902fc09075cd97b75d Mon Sep 17 00:00:00 2001 From: Dominik Sliwa Date: Sun, 2 Jul 2017 16:41:37 +0200 Subject: Backports generated from 4.11 kernel Initial commit. Signed-off-by: Dominik Sliwa --- .../net/wireless/intersil/orinoco/orinoco_nortel.c | 323 +++++++++++++++++++++ 1 file changed, 323 insertions(+) create mode 100644 drivers/net/wireless/intersil/orinoco/orinoco_nortel.c (limited to 'drivers/net/wireless/intersil/orinoco/orinoco_nortel.c') diff --git a/drivers/net/wireless/intersil/orinoco/orinoco_nortel.c b/drivers/net/wireless/intersil/orinoco/orinoco_nortel.c new file mode 100644 index 0000000..048693b --- /dev/null +++ b/drivers/net/wireless/intersil/orinoco/orinoco_nortel.c @@ -0,0 +1,323 @@ +/* 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 PCI-to-PCMCIA adapter used in + * Nortel emobility, Symbol LA-4113 and Symbol LA-4123. + * + * Copyright (C) 2002 Tobias Hoffmann + * (C) 2003 Christoph Jungegger + * + * 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 +#include +#include +#include +#include +#include + +#include "orinoco.h" +#include "orinoco_pci.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 */ + + +/* + * 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 bis : Don't try to access HERMES_CMD during the reset phase. + * It just won't work ! + */ +static int orinoco_nortel_cor_reset(struct orinoco_private *priv) +{ + struct orinoco_pci_card *card = priv->card; + + /* Assert the reset until the card notices */ + iowrite16(8, card->bridge_io + 2); + ioread16(card->attr_io + COR_OFFSET); + iowrite16(0x80, card->attr_io + COR_OFFSET); + mdelay(1); + + /* Give time for the card to recover from this hard effort */ + iowrite16(0, card->attr_io + COR_OFFSET); + iowrite16(0, card->attr_io + COR_OFFSET); + mdelay(1); + + /* Set COR as usual */ + iowrite16(COR_VALUE, card->attr_io + COR_OFFSET); + iowrite16(COR_VALUE, card->attr_io + COR_OFFSET); + mdelay(1); + + iowrite16(0x228, card->bridge_io + 2); + + return 0; +} + +static int orinoco_nortel_hw_init(struct orinoco_pci_card *card) +{ + int i; + u32 reg; + + /* Setup bridge */ + if (ioread16(card->bridge_io) & 1) { + printk(KERN_ERR PFX "brg1 answer1 wrong\n"); + return -EBUSY; + } + iowrite16(0x118, card->bridge_io + 2); + iowrite16(0x108, card->bridge_io + 2); + mdelay(30); + iowrite16(0x8, card->bridge_io + 2); + for (i = 0; i < 30; i++) { + mdelay(30); + if (ioread16(card->bridge_io) & 0x10) + break; + } + if (i == 30) { + printk(KERN_ERR PFX "brg1 timed out\n"); + return -EBUSY; + } + if (ioread16(card->attr_io + COR_OFFSET) & 1) { + printk(KERN_ERR PFX "brg2 answer1 wrong\n"); + return -EBUSY; + } + if (ioread16(card->attr_io + COR_OFFSET + 2) & 1) { + printk(KERN_ERR PFX "brg2 answer2 wrong\n"); + return -EBUSY; + } + if (ioread16(card->attr_io + COR_OFFSET + 4) & 1) { + printk(KERN_ERR PFX "brg2 answer3 wrong\n"); + return -EBUSY; + } + + /* Set the PCMCIA COR register */ + iowrite16(COR_VALUE, card->attr_io + COR_OFFSET); + mdelay(1); + reg = ioread16(card->attr_io + COR_OFFSET); + if (reg != COR_VALUE) { + printk(KERN_ERR PFX "Error setting COR value (reg=%x)\n", + reg); + return -EBUSY; + } + + /* Set LEDs */ + iowrite16(1, card->bridge_io + 10); + return 0; +} + +static int orinoco_nortel_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, *bridge_io, *attr_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; + } + + bridge_io = pci_iomap(pdev, 0, 0); + if (!bridge_io) { + printk(KERN_ERR PFX "Cannot map bridge registers\n"); + err = -EIO; + goto fail_map_bridge; + } + + attr_io = pci_iomap(pdev, 1, 0); + if (!attr_io) { + printk(KERN_ERR PFX "Cannot map PCMCIA attributes\n"); + err = -EIO; + goto fail_map_attr; + } + + hermes_io = pci_iomap(pdev, 2, 0); + if (!hermes_io) { + printk(KERN_ERR PFX "Cannot map chipset registers\n"); + err = -EIO; + goto fail_map_hermes; + } + + /* Allocate network device */ + priv = alloc_orinocodev(sizeof(*card), &pdev->dev, + orinoco_nortel_cor_reset, NULL); + if (!priv) { + printk(KERN_ERR PFX "Cannot allocate network device\n"); + err = -ENOMEM; + goto fail_alloc; + } + + card = priv->card; + card->bridge_io = bridge_io; + card->attr_io = attr_io; + + hermes_struct_init(&priv->hw, hermes_io, HERMES_16BIT_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_nortel_hw_init(card); + if (err) { + printk(KERN_ERR PFX "Hardware initialization failed\n"); + goto fail; + } + + err = orinoco_nortel_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_iounmap(pdev, attr_io); + + fail_map_attr: + pci_iounmap(pdev, bridge_io); + + fail_map_bridge: + pci_release_regions(pdev); + + fail_resources: + pci_disable_device(pdev); + + return err; +} + +static void orinoco_nortel_remove_one(struct pci_dev *pdev) +{ + struct orinoco_private *priv = pci_get_drvdata(pdev); + struct orinoco_pci_card *card = priv->card; + + /* Clear LEDs */ + iowrite16(0, card->bridge_io + 10); + + 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_iounmap(pdev, card->attr_io); + pci_iounmap(pdev, card->bridge_io); + pci_release_regions(pdev); + pci_disable_device(pdev); +} + +static const struct pci_device_id orinoco_nortel_id_table[] = { + /* Nortel emobility PCI */ + {0x126c, 0x8030, PCI_ANY_ID, PCI_ANY_ID,}, + /* Symbol LA-4123 PCI */ + {0x1562, 0x0001, PCI_ANY_ID, PCI_ANY_ID,}, + {0,}, +}; + +MODULE_DEVICE_TABLE(pci, orinoco_nortel_id_table); + +static struct pci_driver orinoco_nortel_driver = { + .name = DRIVER_NAME, + .id_table = orinoco_nortel_id_table, + .probe = orinoco_nortel_init_one, + .remove = orinoco_nortel_remove_one, + .suspend = orinoco_pci_suspend, + .resume = orinoco_pci_resume, +}; + +static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION + " (Tobias Hoffmann & Christoph Jungegger )"; +MODULE_AUTHOR("Christoph Jungegger "); +MODULE_DESCRIPTION("Driver for wireless LAN cards using the Nortel PCI bridge"); +MODULE_LICENSE("Dual MPL/GPL"); + +static int __init orinoco_nortel_init(void) +{ + printk(KERN_DEBUG "%s\n", version); + return pci_register_driver(&orinoco_nortel_driver); +} + +static void __exit orinoco_nortel_exit(void) +{ + pci_unregister_driver(&orinoco_nortel_driver); +} + +module_init(orinoco_nortel_init); +module_exit(orinoco_nortel_exit); + +/* + * Local variables: + * c-indent-level: 8 + * c-basic-offset: 8 + * tab-width: 8 + * End: + */ -- cgit v1.2.3