diff options
Diffstat (limited to 'drivers/net/wireless/intersil/prism54/islpci_hotplug.c')
| -rw-r--r-- | drivers/net/wireless/intersil/prism54/islpci_hotplug.c | 316 |
1 files changed, 0 insertions, 316 deletions
diff --git a/drivers/net/wireless/intersil/prism54/islpci_hotplug.c b/drivers/net/wireless/intersil/prism54/islpci_hotplug.c deleted file mode 100644 index 31a1e61326ff..000000000000 --- a/drivers/net/wireless/intersil/prism54/islpci_hotplug.c +++ /dev/null @@ -1,316 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 2002 Intersil Americas Inc. - * Copyright (C) 2003 Herbert Valerio Riedel <hvr@gnu.org> - */ - -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/init.h> /* For __init, __exit */ -#include <linux/dma-mapping.h> - -#include "prismcompat.h" -#include "islpci_dev.h" -#include "islpci_mgt.h" /* for pc_debug */ -#include "isl_oid.h" - -MODULE_AUTHOR("[Intersil] R.Bastings and W.Termorshuizen, The prism54.org Development Team <prism54-devel@prism54.org>"); -MODULE_DESCRIPTION("The Prism54 802.11 Wireless LAN adapter"); -MODULE_LICENSE("GPL"); - -static int init_pcitm = 0; -module_param(init_pcitm, int, 0); - -/* In this order: vendor, device, subvendor, subdevice, class, class_mask, - * driver_data - * If you have an update for this please contact prism54-devel@prism54.org - * The latest list can be found at http://wireless.wiki.kernel.org/en/users/Drivers/p54 - */ -static const struct pci_device_id prism54_id_tbl[] = { - /* Intersil PRISM Duette/Prism GT Wireless LAN adapter */ - { - 0x1260, 0x3890, - PCI_ANY_ID, PCI_ANY_ID, - 0, 0, 0 - }, - - /* 3COM 3CRWE154G72 Wireless LAN adapter */ - { - PCI_VDEVICE(3COM, 0x6001), 0 - }, - - /* Intersil PRISM Indigo Wireless LAN adapter */ - { - 0x1260, 0x3877, - PCI_ANY_ID, PCI_ANY_ID, - 0, 0, 0 - }, - - /* Intersil PRISM Javelin/Xbow Wireless LAN adapter */ - { - 0x1260, 0x3886, - PCI_ANY_ID, PCI_ANY_ID, - 0, 0, 0 - }, - - /* End of list */ - {0,0,0,0,0,0,0} -}; - -/* register the device with the Hotplug facilities of the kernel */ -MODULE_DEVICE_TABLE(pci, prism54_id_tbl); - -static int prism54_probe(struct pci_dev *, const struct pci_device_id *); -static void prism54_remove(struct pci_dev *); -static int __maybe_unused prism54_suspend(struct device *); -static int __maybe_unused prism54_resume(struct device *); - -static SIMPLE_DEV_PM_OPS(prism54_pm_ops, prism54_suspend, prism54_resume); - -static struct pci_driver prism54_driver = { - .name = DRV_NAME, - .id_table = prism54_id_tbl, - .probe = prism54_probe, - .remove = prism54_remove, - .driver.pm = &prism54_pm_ops, -}; - -/****************************************************************************** - Module initialization functions -******************************************************************************/ - -static int -prism54_probe(struct pci_dev *pdev, const struct pci_device_id *id) -{ - struct net_device *ndev; - u8 latency_tmr; - u32 mem_addr; - islpci_private *priv; - int rvalue; - - /* Enable the pci device */ - if (pci_enable_device(pdev)) { - printk(KERN_ERR "%s: pci_enable_device() failed.\n", DRV_NAME); - return -ENODEV; - } - - /* check whether the latency timer is set correctly */ - pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &latency_tmr); -#if VERBOSE > SHOW_ERROR_MESSAGES - DEBUG(SHOW_TRACING, "latency timer: %x\n", latency_tmr); -#endif - if (latency_tmr < PCIDEVICE_LATENCY_TIMER_MIN) { - /* set the latency timer */ - pci_write_config_byte(pdev, PCI_LATENCY_TIMER, - PCIDEVICE_LATENCY_TIMER_VAL); - } - - /* enable PCI DMA */ - if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) { - printk(KERN_ERR "%s: 32-bit PCI DMA not supported", DRV_NAME); - goto do_pci_disable_device; - } - - /* 0x40 is the programmable timer to configure the response timeout (TRDY_TIMEOUT) - * 0x41 is the programmable timer to configure the retry timeout (RETRY_TIMEOUT) - * The RETRY_TIMEOUT is used to set the number of retries that the core, as a - * Master, will perform before abandoning a cycle. The default value for - * RETRY_TIMEOUT is 0x80, which far exceeds the PCI 2.1 requirement for new - * devices. A write of zero to the RETRY_TIMEOUT register disables this - * function to allow use with any non-compliant legacy devices that may - * execute more retries. - * - * Writing zero to both these two registers will disable both timeouts and - * *can* solve problems caused by devices that are slow to respond. - * Make this configurable - MSW - */ - if ( init_pcitm >= 0 ) { - pci_write_config_byte(pdev, 0x40, (u8)init_pcitm); - pci_write_config_byte(pdev, 0x41, (u8)init_pcitm); - } else { - printk(KERN_INFO "PCI TRDY/RETRY unchanged\n"); - } - - /* request the pci device I/O regions */ - rvalue = pci_request_regions(pdev, DRV_NAME); - if (rvalue) { - printk(KERN_ERR "%s: pci_request_regions failure (rc=%d)\n", - DRV_NAME, rvalue); - goto do_pci_disable_device; - } - - /* check if the memory window is indeed set */ - rvalue = pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &mem_addr); - if (rvalue || !mem_addr) { - printk(KERN_ERR "%s: PCI device memory region not configured; fix your BIOS or CardBus bridge/drivers\n", - DRV_NAME); - goto do_pci_release_regions; - } - - /* enable PCI bus-mastering */ - DEBUG(SHOW_TRACING, "%s: pci_set_master(pdev)\n", DRV_NAME); - pci_set_master(pdev); - - /* enable MWI */ - pci_try_set_mwi(pdev); - - /* setup the network device interface and its structure */ - if (!(ndev = islpci_setup(pdev))) { - /* error configuring the driver as a network device */ - printk(KERN_ERR "%s: could not configure network device\n", - DRV_NAME); - goto do_pci_clear_mwi; - } - - priv = netdev_priv(ndev); - islpci_set_state(priv, PRV_STATE_PREBOOT); /* we are attempting to boot */ - - /* card is in unknown state yet, might have some interrupts pending */ - isl38xx_disable_interrupts(priv->device_base); - - /* request for the interrupt before uploading the firmware */ - rvalue = request_irq(pdev->irq, islpci_interrupt, - IRQF_SHARED, ndev->name, priv); - - if (rvalue) { - /* error, could not hook the handler to the irq */ - printk(KERN_ERR "%s: could not install IRQ handler\n", - ndev->name); - goto do_unregister_netdev; - } - - /* firmware upload is triggered in islpci_open */ - - return 0; - - do_unregister_netdev: - unregister_netdev(ndev); - islpci_free_memory(priv); - free_netdev(ndev); - priv = NULL; - do_pci_clear_mwi: - pci_clear_mwi(pdev); - do_pci_release_regions: - pci_release_regions(pdev); - do_pci_disable_device: - pci_disable_device(pdev); - return -EIO; -} - -/* set by cleanup_module */ -static volatile int __in_cleanup_module = 0; - -/* this one removes one(!!) instance only */ -static void -prism54_remove(struct pci_dev *pdev) -{ - struct net_device *ndev = pci_get_drvdata(pdev); - islpci_private *priv = ndev ? netdev_priv(ndev) : NULL; - BUG_ON(!priv); - - if (!__in_cleanup_module) { - printk(KERN_DEBUG "%s: hot unplug detected\n", ndev->name); - islpci_set_state(priv, PRV_STATE_OFF); - } - - printk(KERN_DEBUG "%s: removing device\n", ndev->name); - - unregister_netdev(ndev); - - /* free the interrupt request */ - - if (islpci_get_state(priv) != PRV_STATE_OFF) { - isl38xx_disable_interrupts(priv->device_base); - islpci_set_state(priv, PRV_STATE_OFF); - /* This bellow causes a lockup at rmmod time. It might be - * because some interrupts still linger after rmmod time, - * see bug #17 */ - /* pci_set_power_state(pdev, 3);*/ /* try to power-off */ - } - - free_irq(pdev->irq, priv); - - /* free the PCI memory and unmap the remapped page */ - islpci_free_memory(priv); - - free_netdev(ndev); - priv = NULL; - - pci_clear_mwi(pdev); - - pci_release_regions(pdev); - - pci_disable_device(pdev); -} - -static int __maybe_unused -prism54_suspend(struct device *dev) -{ - struct net_device *ndev = dev_get_drvdata(dev); - islpci_private *priv = ndev ? netdev_priv(ndev) : NULL; - BUG_ON(!priv); - - /* tell the device not to trigger interrupts for now... */ - isl38xx_disable_interrupts(priv->device_base); - - /* from now on assume the hardware was already powered down - and don't touch it anymore */ - islpci_set_state(priv, PRV_STATE_OFF); - - netif_stop_queue(ndev); - netif_device_detach(ndev); - - return 0; -} - -static int __maybe_unused -prism54_resume(struct device *dev) -{ - struct net_device *ndev = dev_get_drvdata(dev); - islpci_private *priv = ndev ? netdev_priv(ndev) : NULL; - - BUG_ON(!priv); - - printk(KERN_NOTICE "%s: got resume request\n", ndev->name); - - /* alright let's go into the PREBOOT state */ - islpci_reset(priv, 1); - - netif_device_attach(ndev); - netif_start_queue(ndev); - - return 0; -} - -static int __init -prism54_module_init(void) -{ - printk(KERN_INFO "Loaded %s driver, version %s\n", - DRV_NAME, DRV_VERSION); - - __bug_on_wrong_struct_sizes (); - - return pci_register_driver(&prism54_driver); -} - -/* by the time prism54_module_exit() terminates, as a postcondition - * all instances will have been destroyed by calls to - * prism54_remove() */ -static void __exit -prism54_module_exit(void) -{ - __in_cleanup_module = 1; - - pci_unregister_driver(&prism54_driver); - - printk(KERN_INFO "Unloaded %s driver\n", DRV_NAME); - - __in_cleanup_module = 0; -} - -/* register entry points */ -module_init(prism54_module_init); -module_exit(prism54_module_exit); -/* EOF */ |