1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. 4 * 5 * Based on the r8180 driver, which is: 6 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al. 7 * 8 * Contact Information: wlanfae <wlanfae@realtek.com> 9 */ 10 #include "rtl_pci.h" 11 #include "rtl_core.h" 12 13 static void _rtl92e_parse_pci_configuration(struct pci_dev *pdev, 14 struct net_device *dev) 15 { 16 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); 17 18 u8 tmp; 19 u16 link_ctrl_reg; 20 21 pcie_capability_read_word(priv->pdev, PCI_EXP_LNKCTL, &link_ctrl_reg); 22 23 pci_read_config_byte(pdev, 0x98, &tmp); 24 tmp |= BIT4; 25 pci_write_config_byte(pdev, 0x98, tmp); 26 27 tmp = 0x17; 28 pci_write_config_byte(pdev, 0x70f, tmp); 29 } 30 31 bool rtl92e_check_adapter(struct pci_dev *pdev, struct net_device *dev) 32 { 33 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); 34 u16 device_id; 35 u8 revision_id; 36 u16 irq_line; 37 38 device_id = pdev->device; 39 revision_id = pdev->revision; 40 pci_read_config_word(pdev, 0x3C, &irq_line); 41 42 priv->card_8192 = priv->ops->nic_type; 43 44 if (device_id == 0x8192) { 45 switch (revision_id) { 46 case HAL_HW_PCI_REVISION_ID_8192PCIE: 47 dev_info(&pdev->dev, 48 "Adapter(8192 PCI-E) is found - DeviceID=%x\n", 49 device_id); 50 priv->card_8192 = NIC_8192E; 51 break; 52 case HAL_HW_PCI_REVISION_ID_8192SE: 53 dev_info(&pdev->dev, 54 "Adapter(8192SE) is found - DeviceID=%x\n", 55 device_id); 56 priv->card_8192 = NIC_8192SE; 57 break; 58 default: 59 dev_info(&pdev->dev, 60 "UNKNOWN nic type(%4x:%4x)\n", 61 pdev->vendor, pdev->device); 62 priv->card_8192 = NIC_UNKNOWN; 63 return false; 64 } 65 } 66 67 if (priv->ops->nic_type != priv->card_8192) { 68 dev_info(&pdev->dev, 69 "Detect info(%x) and hardware info(%x) not match!\n", 70 priv->ops->nic_type, priv->card_8192); 71 dev_info(&pdev->dev, 72 "Please select proper driver before install!!!!\n"); 73 return false; 74 } 75 76 _rtl92e_parse_pci_configuration(pdev, dev); 77 78 return true; 79 } 80