diff options
Diffstat (limited to 'drivers/staging/rtl8192e/rtl8192e/rtl_pci.c')
| -rw-r--r-- | drivers/staging/rtl8192e/rtl8192e/rtl_pci.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c b/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c new file mode 100644 index 000000000000..ddadcc3e4e7c --- /dev/null +++ b/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c @@ -0,0 +1,97 @@ +/****************************************************************************** + * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. + * + * Based on the r8180 driver, which is: + * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al. + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * wlanfae <wlanfae@realtek.com> + *****************************************************************************/ +#include "rtl_pci.h" +#include "rtl_core.h" + +static void rtl8192_parse_pci_configuration(struct pci_dev *pdev, + struct net_device *dev) +{ + struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); + + u8 tmp; + int pos; + u8 LinkCtrlReg; + + pos = pci_find_capability(priv->pdev, PCI_CAP_ID_EXP); + pci_read_config_byte(priv->pdev, pos + PCI_EXP_LNKCTL, &LinkCtrlReg); + priv->NdisAdapter.LinkCtrlReg = LinkCtrlReg; + + RT_TRACE(COMP_INIT, "Link Control Register =%x\n", + priv->NdisAdapter.LinkCtrlReg); + + pci_read_config_byte(pdev, 0x98, &tmp); + tmp |= BIT4; + pci_write_config_byte(pdev, 0x98, tmp); + + tmp = 0x17; + pci_write_config_byte(pdev, 0x70f, tmp); +} + +bool rtl8192_pci_findadapter(struct pci_dev *pdev, struct net_device *dev) +{ + struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); + u16 VenderID; + u16 DeviceID; + u8 RevisionID; + u16 IrqLine; + + VenderID = pdev->vendor; + DeviceID = pdev->device; + RevisionID = pdev->revision; + pci_read_config_word(pdev, 0x3C, &IrqLine); + + priv->card_8192 = priv->ops->nic_type; + + if (DeviceID == 0x8172) { + switch (RevisionID) { + case HAL_HW_PCI_REVISION_ID_8192PCIE: + printk(KERN_INFO "Adapter(8192 PCI-E) is found - " + "DeviceID=%x\n", DeviceID); + priv->card_8192 = NIC_8192E; + break; + case HAL_HW_PCI_REVISION_ID_8192SE: + printk(KERN_INFO "Adapter(8192SE) is found - " + "DeviceID=%x\n", DeviceID); + priv->card_8192 = NIC_8192SE; + break; + default: + printk(KERN_INFO "UNKNOWN nic type(%4x:%4x)\n", + pdev->vendor, pdev->device); + priv->card_8192 = NIC_UNKNOWN; + return false; + } + } + + if (priv->ops->nic_type != priv->card_8192) { + printk(KERN_INFO "Detect info(%x) and hardware info(%x) not match!\n", + priv->ops->nic_type, priv->card_8192); + printk(KERN_INFO "Please select proper driver before install!!!!\n"); + return false; + } + + rtl8192_parse_pci_configuration(pdev, dev); + + return true; +} |