diff options
Diffstat (limited to 'drivers/net/wireless/intersil/hostap/hostap_pci.c')
| -rw-r--r-- | drivers/net/wireless/intersil/hostap/hostap_pci.c | 445 |
1 files changed, 0 insertions, 445 deletions
diff --git a/drivers/net/wireless/intersil/hostap/hostap_pci.c b/drivers/net/wireless/intersil/hostap/hostap_pci.c deleted file mode 100644 index 52d77506ef..0000000000 --- a/drivers/net/wireless/intersil/hostap/hostap_pci.c +++ /dev/null @@ -1,445 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -#define PRISM2_PCI - -/* Host AP driver's support for Intersil Prism2.5 PCI cards is based on - * driver patches from Reyk Floeter <reyk@vantronix.net> and - * Andy Warner <andyw@pobox.com> */ - -#include <linux/module.h> -#include <linux/if.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <linux/slab.h> -#include <linux/workqueue.h> -#include <linux/wireless.h> -#include <net/iw_handler.h> - -#include <linux/ioport.h> -#include <linux/pci.h> -#include <asm/io.h> - -#include "hostap_wlan.h" - - -static char *dev_info = "hostap_pci"; - - -MODULE_AUTHOR("Jouni Malinen"); -MODULE_DESCRIPTION("Support for Intersil Prism2.5-based 802.11 wireless LAN " - "PCI cards."); -MODULE_LICENSE("GPL"); - - -/* struct local_info::hw_priv */ -struct hostap_pci_priv { - void __iomem *mem_start; -}; - - -/* FIX: do we need mb/wmb/rmb with memory operations? */ - - -static const struct pci_device_id prism2_pci_id_table[] = { - /* Intersil Prism3 ISL3872 11Mb/s WLAN Controller */ - { 0x1260, 0x3872, PCI_ANY_ID, PCI_ANY_ID }, - /* Intersil Prism2.5 ISL3874 11Mb/s WLAN Controller */ - { 0x1260, 0x3873, PCI_ANY_ID, PCI_ANY_ID }, - /* Samsung MagicLAN SWL-2210P */ - { 0x167d, 0xa000, PCI_ANY_ID, PCI_ANY_ID }, - { 0 } -}; - - -#ifdef PRISM2_IO_DEBUG - -static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v) -{ - struct hostap_interface *iface; - struct hostap_pci_priv *hw_priv; - local_info_t *local; - unsigned long flags; - - iface = netdev_priv(dev); - local = iface->local; - hw_priv = local->hw_priv; - - spin_lock_irqsave(&local->lock, flags); - prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v); - writeb(v, hw_priv->mem_start + a); - spin_unlock_irqrestore(&local->lock, flags); -} - -static inline u8 hfa384x_inb_debug(struct net_device *dev, int a) -{ - struct hostap_interface *iface; - struct hostap_pci_priv *hw_priv; - local_info_t *local; - unsigned long flags; - u8 v; - - iface = netdev_priv(dev); - local = iface->local; - hw_priv = local->hw_priv; - - spin_lock_irqsave(&local->lock, flags); - v = readb(hw_priv->mem_start + a); - prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v); - spin_unlock_irqrestore(&local->lock, flags); - return v; -} - -static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v) -{ - struct hostap_interface *iface; - struct hostap_pci_priv *hw_priv; - local_info_t *local; - unsigned long flags; - - iface = netdev_priv(dev); - local = iface->local; - hw_priv = local->hw_priv; - - spin_lock_irqsave(&local->lock, flags); - prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v); - writew(v, hw_priv->mem_start + a); - spin_unlock_irqrestore(&local->lock, flags); -} - -static inline u16 hfa384x_inw_debug(struct net_device *dev, int a) -{ - struct hostap_interface *iface; - struct hostap_pci_priv *hw_priv; - local_info_t *local; - unsigned long flags; - u16 v; - - iface = netdev_priv(dev); - local = iface->local; - hw_priv = local->hw_priv; - - spin_lock_irqsave(&local->lock, flags); - v = readw(hw_priv->mem_start + a); - prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v); - spin_unlock_irqrestore(&local->lock, flags); - return v; -} - -#define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v)) -#define HFA384X_INB(a) hfa384x_inb_debug(dev, (a)) -#define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v)) -#define HFA384X_INW(a) hfa384x_inw_debug(dev, (a)) -#define HFA384X_OUTW_DATA(v,a) hfa384x_outw_debug(dev, (a), le16_to_cpu((v))) -#define HFA384X_INW_DATA(a) cpu_to_le16(hfa384x_inw_debug(dev, (a))) - -#else /* PRISM2_IO_DEBUG */ - -static inline void hfa384x_outb(struct net_device *dev, int a, u8 v) -{ - struct hostap_interface *iface; - struct hostap_pci_priv *hw_priv; - iface = netdev_priv(dev); - hw_priv = iface->local->hw_priv; - writeb(v, hw_priv->mem_start + a); -} - -static inline u8 hfa384x_inb(struct net_device *dev, int a) -{ - struct hostap_interface *iface; - struct hostap_pci_priv *hw_priv; - iface = netdev_priv(dev); - hw_priv = iface->local->hw_priv; - return readb(hw_priv->mem_start + a); -} - -static inline void hfa384x_outw(struct net_device *dev, int a, u16 v) -{ - struct hostap_interface *iface; - struct hostap_pci_priv *hw_priv; - iface = netdev_priv(dev); - hw_priv = iface->local->hw_priv; - writew(v, hw_priv->mem_start + a); -} - -static inline u16 hfa384x_inw(struct net_device *dev, int a) -{ - struct hostap_interface *iface; - struct hostap_pci_priv *hw_priv; - iface = netdev_priv(dev); - hw_priv = iface->local->hw_priv; - return readw(hw_priv->mem_start + a); -} - -#define HFA384X_OUTB(v,a) hfa384x_outb(dev, (a), (v)) -#define HFA384X_INB(a) hfa384x_inb(dev, (a)) -#define HFA384X_OUTW(v,a) hfa384x_outw(dev, (a), (v)) -#define HFA384X_INW(a) hfa384x_inw(dev, (a)) -#define HFA384X_OUTW_DATA(v,a) hfa384x_outw(dev, (a), le16_to_cpu((v))) -#define HFA384X_INW_DATA(a) cpu_to_le16(hfa384x_inw(dev, (a))) - -#endif /* PRISM2_IO_DEBUG */ - - -static int hfa384x_from_bap(struct net_device *dev, u16 bap, void *buf, - int len) -{ - u16 d_off; - __le16 *pos; - - d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF; - pos = (__le16 *) buf; - - for ( ; len > 1; len -= 2) - *pos++ = HFA384X_INW_DATA(d_off); - - if (len & 1) - *((char *) pos) = HFA384X_INB(d_off); - - return 0; -} - - -static int hfa384x_to_bap(struct net_device *dev, u16 bap, void *buf, int len) -{ - u16 d_off; - __le16 *pos; - - d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF; - pos = (__le16 *) buf; - - for ( ; len > 1; len -= 2) - HFA384X_OUTW_DATA(*pos++, d_off); - - if (len & 1) - HFA384X_OUTB(*((char *) pos), d_off); - - return 0; -} - - -/* FIX: This might change at some point.. */ -#include "hostap_hw.c" - -static void prism2_pci_cor_sreset(local_info_t *local) -{ - struct net_device *dev = local->dev; - u16 reg; - - reg = HFA384X_INB(HFA384X_PCICOR_OFF); - printk(KERN_DEBUG "%s: Original COR value: 0x%0x\n", dev->name, reg); - - /* linux-wlan-ng uses extremely long hold and settle times for - * COR sreset. A comment in the driver code mentions that the long - * delays appear to be necessary. However, at least IBM 22P6901 seems - * to work fine with shorter delays. - * - * Longer delays can be configured by uncommenting following line: */ -/* #define PRISM2_PCI_USE_LONG_DELAYS */ - -#ifdef PRISM2_PCI_USE_LONG_DELAYS - int i; - - HFA384X_OUTW(reg | 0x0080, HFA384X_PCICOR_OFF); - mdelay(250); - - HFA384X_OUTW(reg & ~0x0080, HFA384X_PCICOR_OFF); - mdelay(500); - - /* Wait for f/w to complete initialization (CMD:BUSY == 0) */ - i = 2000000 / 10; - while ((HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY) && --i) - udelay(10); - -#else /* PRISM2_PCI_USE_LONG_DELAYS */ - - HFA384X_OUTW(reg | 0x0080, HFA384X_PCICOR_OFF); - mdelay(2); - HFA384X_OUTW(reg & ~0x0080, HFA384X_PCICOR_OFF); - mdelay(2); - -#endif /* PRISM2_PCI_USE_LONG_DELAYS */ - - if (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY) { - printk(KERN_DEBUG "%s: COR sreset timeout\n", dev->name); - } -} - - -static void prism2_pci_genesis_reset(local_info_t *local, int hcr) -{ - struct net_device *dev = local->dev; - - HFA384X_OUTW(0x00C5, HFA384X_PCICOR_OFF); - mdelay(10); - HFA384X_OUTW(hcr, HFA384X_PCIHCR_OFF); - mdelay(10); - HFA384X_OUTW(0x0045, HFA384X_PCICOR_OFF); - mdelay(10); -} - - -static struct prism2_helper_functions prism2_pci_funcs = -{ - .card_present = NULL, - .cor_sreset = prism2_pci_cor_sreset, - .genesis_reset = prism2_pci_genesis_reset, - .hw_type = HOSTAP_HW_PCI, -}; - - -static int prism2_pci_probe(struct pci_dev *pdev, - const struct pci_device_id *id) -{ - unsigned long phymem; - void __iomem *mem = NULL; - local_info_t *local = NULL; - struct net_device *dev = NULL; - static int cards_found /* = 0 */; - int irq_registered = 0; - struct hostap_interface *iface; - struct hostap_pci_priv *hw_priv; - - hw_priv = kzalloc(sizeof(*hw_priv), GFP_KERNEL); - if (hw_priv == NULL) - return -ENOMEM; - - if (pci_enable_device(pdev)) - goto err_out_free; - - phymem = pci_resource_start(pdev, 0); - - if (!request_mem_region(phymem, pci_resource_len(pdev, 0), "Prism2")) { - printk(KERN_ERR "prism2: Cannot reserve PCI memory region\n"); - goto err_out_disable; - } - - mem = pci_ioremap_bar(pdev, 0); - if (mem == NULL) { - printk(KERN_ERR "prism2: Cannot remap PCI memory region\n") ; - goto fail; - } - - dev = prism2_init_local_data(&prism2_pci_funcs, cards_found, - &pdev->dev); - if (dev == NULL) - goto fail; - iface = netdev_priv(dev); - local = iface->local; - local->hw_priv = hw_priv; - cards_found++; - - dev->irq = pdev->irq; - hw_priv->mem_start = mem; - dev->base_addr = (unsigned long) mem; - - prism2_pci_cor_sreset(local); - - pci_set_drvdata(pdev, dev); - - if (request_irq(dev->irq, prism2_interrupt, IRQF_SHARED, dev->name, - dev)) { - printk(KERN_WARNING "%s: request_irq failed\n", dev->name); - goto fail; - } else - irq_registered = 1; - - if (!local->pri_only && prism2_hw_config(dev, 1)) { - printk(KERN_DEBUG "%s: hardware initialization failed\n", - dev_info); - goto fail; - } - - printk(KERN_INFO "%s: Intersil Prism2.5 PCI: " - "mem=0x%lx, irq=%d\n", dev->name, phymem, dev->irq); - - return hostap_hw_ready(dev); - - fail: - if (irq_registered && dev) - free_irq(dev->irq, dev); - - if (mem) - iounmap(mem); - - release_mem_region(phymem, pci_resource_len(pdev, 0)); - - err_out_disable: - pci_disable_device(pdev); - prism2_free_local_data(dev); - - err_out_free: - kfree(hw_priv); - - return -ENODEV; -} - - -static void prism2_pci_remove(struct pci_dev *pdev) -{ - struct net_device *dev; - struct hostap_interface *iface; - void __iomem *mem_start; - struct hostap_pci_priv *hw_priv; - - dev = pci_get_drvdata(pdev); - iface = netdev_priv(dev); - hw_priv = iface->local->hw_priv; - - /* Reset the hardware, and ensure interrupts are disabled. */ - prism2_pci_cor_sreset(iface->local); - hfa384x_disable_interrupts(dev); - - if (dev->irq) - free_irq(dev->irq, dev); - - mem_start = hw_priv->mem_start; - prism2_free_local_data(dev); - kfree(hw_priv); - - iounmap(mem_start); - - release_mem_region(pci_resource_start(pdev, 0), - pci_resource_len(pdev, 0)); - pci_disable_device(pdev); -} - -static int __maybe_unused prism2_pci_suspend(struct device *dev_d) -{ - struct net_device *dev = dev_get_drvdata(dev_d); - - if (netif_running(dev)) { - netif_stop_queue(dev); - netif_device_detach(dev); - } - prism2_suspend(dev); - - return 0; -} - -static int __maybe_unused prism2_pci_resume(struct device *dev_d) -{ - struct net_device *dev = dev_get_drvdata(dev_d); - - prism2_hw_config(dev, 0); - if (netif_running(dev)) { - netif_device_attach(dev); - netif_start_queue(dev); - } - - return 0; -} - -MODULE_DEVICE_TABLE(pci, prism2_pci_id_table); - -static SIMPLE_DEV_PM_OPS(prism2_pci_pm_ops, - prism2_pci_suspend, - prism2_pci_resume); - -static struct pci_driver prism2_pci_driver = { - .name = "hostap_pci", - .id_table = prism2_pci_id_table, - .probe = prism2_pci_probe, - .remove = prism2_pci_remove, - .driver.pm = &prism2_pci_pm_ops, -}; - -module_pci_driver(prism2_pci_driver); |