text: /*
   * Copyright(c) 2007 Atheros Corporation. All rights reserved.
   *
   * Derived from Intel e1000 driver
   * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License as published by the Free
   * Software Foundation; either version 2 of the License, or (at your option)
   * any later version.
   *
   * 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., 59
   * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
   *
   */
  
  #include <linux/netdevice.h>
  #include <linux/ethtool.h>
  #include <linux/slab.h>
  
  #include "atl1e.h"
  
  static int atl1e_get_settings(struct net_device *netdev,
  			      struct ethtool_cmd *ecmd)
  {
  	struct atl1e_adapter *adapter = netdev_priv(netdev);
  	struct atl1e_hw *hw = &adapter->hw;
  
  	ecmd->supported = (SUPPORTED_10baseT_Half  |
  			   SUPPORTED_10baseT_Full  |
  			   SUPPORTED_100baseT_Half |
  			   SUPPORTED_100baseT_Full |
  			   SUPPORTED_Autoneg       |
  			   SUPPORTED_TP);
  	if (hw->nic_type == athr_l1e)
  		ecmd->supported |= SUPPORTED_1000baseT_Full;
  
  	ecmd->advertising = ADVERTISED_TP;
  
  	ecmd->advertising |= ADVERTISED_Autoneg;
  	ecmd->advertising |= hw->autoneg_advertised;
  
  	ecmd->port = PORT_TP;
  	ecmd->phy_address = 0;
  	ecmd->transceiver = XCVR_INTERNAL;
  
  	if (adapter->link_speed != SPEED_0) {
  		ethtool_cmd_speed_set(ecmd, adapter->link_speed);
  		if (adapter->link_duplex == FULL_DUPLEX)
  			ecmd->duplex = DUPLEX_FULL;
  		else
  			ecmd->duplex = DUPLEX_HALF;
  	} else {
  		ethtool_cmd_speed_set(ecmd, -1);
  		ecmd->duplex = -1;
  	}
  
  	ecmd->autoneg = AUTONEG_ENABLE;
  	return 0;
  }
  
  static int atl1e_set_settings(struct net_device *netdev,
  			      struct ethtool_cmd *ecmd)
  {
  	struct atl1e_adapter *adapter = netdev_priv(netdev);
  	struct atl1e_hw *hw = &adapter->hw;
  
  	while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
  		msleep(1);
  
  	if (ecmd->autoneg == AUTONEG_ENABLE) {
  		u16 adv4, adv9;
  
  		if ((ecmd->advertising&ADVERTISE_1000_FULL)) {
  			if (hw->nic_type == athr_l1e) {
  				hw->autoneg_advertised =
  					ecmd->advertising & AT_ADV_MASK;
  			} else {
  				clear_bit(__AT_RESETTING, &adapter->flags);
  				return -EINVAL;
  			}
  		} else if (ecmd->advertising&ADVERTISE_1000_HALF) {
  			clear_bit(__AT_RESETTING, &adapter->flags);
  			return -EINVAL;
  		} else {
  			hw->autoneg_advertised =
  				ecmd->advertising & AT_ADV_MASK;
  		}
  		ecmd->advertising = hw->autoneg_advertised |
  				    ADVERTISED_TP | ADVERTISED_Autoneg;
  
  		adv4 = hw->mii_autoneg_adv_reg & ~ADVERTISE_ALL;
  		adv9 = hw->mii_1000t_ctrl_reg & ~MII_AT001_CR_1000T_SPEED_MASK;
  		if (hw->autoneg_advertised & ADVERTISE_10_HALF)
  			adv4 |= ADVERTISE_10HALF;
  		if (hw->autoneg_advertised & ADVERTISE_10_FULL)
  			adv4 |= ADVERTISE_10FULL;
  		if (hw->autoneg_advertised & ADVERTISE_100_HALF)
  			adv4 |= ADVERTISE_100HALF;
  		if (hw->autoneg_advertised & ADVERTISE_100_FULL)
  			adv4 |= ADVERTISE_100FULL;
  		if (hw->autoneg_advertised & ADVERTISE_1000_FULL)
  			adv9 |= ADVERTISE_1000FULL;
  
  		if (adv4 != hw->mii_autoneg_adv_reg ||
  				adv9 != hw->mii_1000t_ctrl_reg) {
  			hw->mii_autoneg_adv_reg = adv4;
  			hw->mii_1000t_ctrl_reg = adv9;
  			hw->re_autoneg = true;
  		}
  
  	} else {
  		clear_bit(__AT_RESETTING, &adapter->flags);
  		return -EINVAL;
  	}
  
  	/* reset the link */
  
  	if (netif_running(adapter->netdev)) {
  		atl1e_down(adapter);
  		atl1e_up(adapter);
  	} else
  		atl1e_reset_hw(&adapter->hw);
  
  	clear_bit(__AT_RESETTING, &adapter->flags);
  	return 0;
  }
  
  static u32 atl1e_get_msglevel(struct net_device *netdev)
  {
  #ifdef DBG
  	return 1;
  #else
  	return 0;
  #endif
  }
  
  static int atl1e_get_regs_len(struct net_device *netdev)
  {
  	return AT_REGS_LEN * sizeof(u32);
  }
  
  static void atl1e_get_regs(struct net_device *netdev,
  			   struct ethtool_regs *regs, void *p)
  {
  	struct atl1e_adapter *adapter = netdev_priv(netdev);
  	struct atl1e_hw *hw = &adapter->hw;
  	u32 *regs_buff = p;
  	u16 phy_data;
  
  	memset(p, 0, AT_REGS_LEN * sizeof(u32));
  
  	regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
  
  	regs_buff[0]  = AT_READ_REG(hw, REG_VPD_CAP);
  	regs_buff[1]  = AT_READ_REG(hw, REG_SPI_FLASH_CTRL);
  	regs_buff[2]  = AT_READ_REG(hw, REG_SPI_FLASH_CONFIG);
  	regs_buff[3]  = AT_READ_REG(hw, REG_TWSI_CTRL);
  	regs_buff[4]  = AT_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL);
  	regs_buff[5]  = AT_READ_REG(hw, REG_MASTER_CTRL);
  	regs_buff[6]  = AT_READ_REG(hw, REG_MANUAL_TIMER_INIT);
  	regs_buff[7]  = AT_READ_REG(hw, REG_IRQ_MODU_TIMER_INIT);
  	regs_buff[8]  = AT_READ_REG(hw, REG_GPHY_CTRL);
  	regs_buff[9]  = AT_READ_REG(hw, REG_CMBDISDMA_TIMER);
  	regs_buff[10] = AT_READ_REG(hw, REG_IDLE_STATUS);
  	regs_buff[11] = AT_READ_REG(hw, REG_MDIO_CTRL);
  	regs_buff[12] = AT_READ_REG(hw, REG_SERDES_LOCK);
  	regs_buff[13] = AT_READ_REG(hw, REG_MAC_CTRL);
  	regs_buff[14] = AT_READ_REG(hw, REG_MAC_IPG_IFG);
  	regs_buff[15] = AT_READ_REG(hw, REG_MAC_STA_ADDR);
  	regs_buff[16] = AT_READ_REG(hw, REG_MAC_STA_ADDR+4);
  	regs_buff[17] = AT_READ_REG(hw, REG_RX_HASH_TABLE);
  	regs_buff[18] = AT_READ_REG(hw, REG_RX_HASH_TABLE+4);
  	regs_buff[19] = AT_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL);
  	regs_buff[20] = AT_READ_REG(hw, REG_MTU);
  	regs_buff[21] = AT_READ_REG(hw, REG_WOL_CTRL);
  	regs_buff[22] = AT_READ_REG(hw, REG_SRAM_TRD_ADDR);
  	regs_buff[23] = AT_READ_REG(hw, REG_SRAM_TRD_LEN);
  	regs_buff[24] = AT_READ_REG(hw, REG_SRAM_RXF_ADDR);
  	regs_buff[25] = AT_READ_REG(hw, REG_SRAM_RXF_LEN);
  	regs_buff[26] = AT_READ_REG(hw, REG_SRAM_TXF_ADDR);
  	regs_buff[27] = AT_READ_REG(hw, REG_SRAM_TXF_LEN);
  	regs_buff[28] = AT_READ_REG(hw, REG_SRAM_TCPH_ADDR);
  	regs_buff[29] = AT_READ_REG(hw, REG_SRAM_PKTH_ADDR);
  
  	atl1e_read_phy_reg(hw, MII_BMCR, &phy_data);
  	regs_buff[73] = (u32)phy_data;
  	atl1e_read_phy_reg(hw, MII_BMSR, &phy_data);
  	regs_buff[74] = (u32)phy_data;
  }
  
  static int atl1e_get_eeprom_len(struct net_device *netdev)
  {
  	struct atl1e_adapter *adapter = netdev_priv(netdev);
  
  	if (!atl1e_check_eeprom_exist(&adapter->hw))
  		return AT_EEPROM_LEN;
  	else
  		return 0;
  }
  
  static int atl1e_get_eeprom(struct net_device *netdev,
  		struct ethtool_eeprom *eeprom, u8 *bytes)
  {
  	struct atl1e_adapter *adapter = netdev_priv(netdev);
  	struct atl1e_hw *hw = &adapter->hw;
  	u32 *eeprom_buff;
  	int first_dword, last_dword;
  	int ret_val = 0;
  	int i;
  
  	if (eeprom->len == 0)
  		return -EINVAL;
  
  	if (atl1e_check_eeprom_exist(hw)) /* not exist */
  		return -EINVAL;
  
  	eeprom->magic = hw->vendor_id | (hw->device_id << 16);
  
  	first_dword = eeprom->offset >> 2;
  	last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
  
  	eeprom_buff = kmalloc(sizeof(u32) *
  			(last_dword - first_dword + 1), GFP_KERNEL);
  	if (eeprom_buff == NULL)
  		return -ENOMEM;
  
  	for (i = first_dword; i < last_dword; i++) {
  		if (!atl1e_read_eeprom(hw, i * 4, &(eeprom_buff[i-first_dword]))) {
  			kfree(eeprom_buff);
  			return -EIO;
  		}
  	}
  
  	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
  			eeprom->len);
  	kfree(eeprom_buff);
  
  	return ret_val;
  }
  
  static int atl1e_set_eeprom(struct net_device *netdev,
  			    struct ethtool_eeprom *eeprom, u8 *bytes)
  {
  	struct atl1e_adapter *adapter = netdev_priv(netdev);
  	struct atl1e_hw *hw = &adapter->hw;
  	u32 *eeprom_buff;
  	u32 *ptr;
  	int first_dword, last_dword;
  	int ret_val = 0;
  	int i;
  
  	if (eeprom->len == 0)
  		return -EOPNOTSUPP;
  
  	if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
  		return -EINVAL;
  
  	first_dword = eeprom->offset >> 2;
  	last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
  	eeprom_buff = kmalloc(AT_EEPROM_LEN, GFP_KERNEL);
  	if (eeprom_buff == NULL)
  		return -ENOMEM;
  
  	ptr = (u32 *)eeprom_buff;
  
  	if (eeprom->offset & 3) {
  		/* need read/modify/write of first changed EEPROM word */
  		/* only the second byte of the word is being modified */
  		if (!atl1e_read_eeprom(hw, first_dword * 4, &(eeprom_buff[0]))) {
  			ret_val = -EIO;
  			goto out;
  		}
  		ptr++;
  	}
  	if (((eeprom->offset + eeprom->len) & 3)) {
  		/* need read/modify/write of last changed EEPROM word */
  		/* only the first byte of the word is being modified */
  
  		if (!atl1e_read_eeprom(hw, last_dword * 4,
  				&(eeprom_buff[last_dword - first_dword]))) {
  			ret_val = -EIO;
  			goto out;
  		}
  	}
  
  	/* Device's eeprom is always little-endian, word addressable */
  	memcpy(ptr, bytes, eeprom->len);
  
  	for (i = 0; i < last_dword - first_dword + 1; i++) {
  		if (!atl1e_write_eeprom(hw, ((first_dword + i) * 4),
  				  eeprom_buff[i])) {
  			ret_val = -EIO;
  			goto out;
  		}
  	}
  out:
  	kfree(eeprom_buff);
  	return ret_val;
  }
  
  static void atl1e_get_drvinfo(struct net_device *netdev,
  		struct ethtool_drvinfo *drvinfo)
  {
  	struct atl1e_adapter *adapter = netdev_priv(netdev);
  
  	strlcpy(drvinfo->driver,  atl1e_driver_name, sizeof(drvinfo->driver));
  	strlcpy(drvinfo->version, atl1e_driver_version,
  		sizeof(drvinfo->version));
  	strlcpy(drvinfo->fw_version, "L1e", sizeof(drvinfo->fw_version));
  	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
  		sizeof(drvinfo->bus_info));
  	drvinfo->n_stats = 0;
  	drvinfo->testinfo_len = 0;
  	drvinfo->regdump_len = atl1e_get_regs_len(netdev);
  	drvinfo->eedump_len = atl1e_get_eeprom_len(netdev);
  }
  
  static void atl1e_get_wol(struct net_device *netdev,
  			  struct ethtool_wolinfo *wol)
  {
  	struct atl1e_adapter *adapter = netdev_priv(netdev);
  
  	wol->supported = WAKE_MAGIC | WAKE_PHY;
  	wol->wolopts = 0;
  
  	if (adapter->wol & AT_WUFC_EX)
  		wol->wolopts |= WAKE_UCAST;
  	if (adapter->wol & AT_WUFC_MC)
  		wol->wolopts |= WAKE_MCAST;
  	if (adapter->wol & AT_WUFC_BC)
  		wol->wolopts |= WAKE_BCAST;
  	if (adapter->wol & AT_WUFC_MAG)
  		wol->wolopts |= WAKE_MAGIC;
  	if (adapter->wol & AT_WUFC_LNKC)
  		wol->wolopts |= WAKE_PHY;
  }
  
  static int atl1e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
  {
  	struct atl1e_adapter *adapter = netdev_priv(netdev);
  
  	if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
  			    WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
  		return -EOPNOTSUPP;
  	/* these settings will always override what we currently have */
  	adapter->wol = 0;
  
  	if (wol->wolopts & WAKE_MAGIC)
  		adapter->wol |= AT_WUFC_MAG;
  	if (wol->wolopts & WAKE_PHY)
  		adapter->wol |= AT_WUFC_LNKC;
  
  	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
  
  	return 0;
  }
  
  static int atl1e_nway_reset(struct net_device *netdev)
  {
  	struct atl1e_adapter *adapter = netdev_priv(netdev);
  	if (netif_running(netdev))
  		atl1e_reinit_locked(adapter);
  	return 0;
  }
  
  static const struct ethtool_ops atl1e_ethtool_ops = {
  	.get_settings           = atl1e_get_settings,
  	.set_settings           = atl1e_set_settings,
  	.get_drvinfo            = atl1e_get_drvinfo,
  	.get_regs_len           = atl1e_get_regs_len,
  	.get_regs               = atl1e_get_regs,
  	.get_wol                = atl1e_get_wol,
  	.set_wol                = atl1e_set_wol,
  	.get_msglevel           = atl1e_get_msglevel,
  	.nway_reset             = atl1e_nway_reset,
  	.get_link               = ethtool_op_get_link,
  	.get_eeprom_len         = atl1e_get_eeprom_len,
  	.get_eeprom             = atl1e_get_eeprom,
  	.set_eeprom             = atl1e_set_eeprom,
  };
  
  void atl1e_set_ethtool_ops(struct net_device *netdev)
  {
  	SET_ETHTOOL_OPS(netdev, &atl1e_ethtool_ops);
  }
  