atl1: move common functions to atlx files

The future atl2 driver and the existing atl1 driver can share certain
functions and definitions.  Move these shareable functions and definitions
out of atl1-specific files and into atlx.c and atlx.h.  Some transitory
hackery will be present until atl2 is merged.

Reduce the number of source files by moving ethtool, hw, and param
functions from separate files into atl1_main.c, then rename it to just
atl1.c.

Move all atl1-specific definitions from atl1_hw.h to atl1.h.

Finally, clean up to make checkpatch.pl happy.
Signed-off-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/atlx/Makefile

 obj-$(CONFIG_ATL1)	+= atl1.o
-atl1-y			+= atl1_main.o atl1_hw.o atl1_ethtool.o atl1_param.o

drivers/net/atlx/atl1_param.c → drivers/net/atlx/atlx.c

-/*
+/* atlx.c -- common functions for Attansic network drivers
+ *
  * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
- * Copyright(c) 2006 Chris Snook <csnook@redhat.com>
+ * Copyright(c) 2006 - 2007 Chris Snook <csnook@redhat.com>
  * Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.com>
+ * Copyright(c) 2007 Atheros Corporation. All rights reserved.
  *
  * Derived from Intel e1000 driver
  * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
@@ -21,10 +23,235 @@
  * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
 
+/* Including this file like a header is a temporary hack, I promise. -- CHS */
+#ifndef ATLX_C
+#define ATLX_C
+
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/if.h>
+#include <linux/netdevice.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
 #include <linux/types.h>
-#include <linux/moduleparam.h>
-#include <linux/pci.h>
-#include "atl1.h"
+#include <linux/workqueue.h>
+
+#include "atlx.h"
+
+static struct atlx_spi_flash_dev flash_table[] = {
+/*	MFR_NAME  WRSR  READ  PRGM  WREN  WRDI  RDSR  RDID  SEC_ERS CHIP_ERS */
+	{"Atmel", 0x00, 0x03, 0x02, 0x06, 0x04, 0x05, 0x15, 0x52,   0x62},
+	{"SST",   0x01, 0x03, 0x02, 0x06, 0x04, 0x05, 0x90, 0x20,   0x60},
+	{"ST",    0x01, 0x03, 0x02, 0x06, 0x04, 0x05, 0xAB, 0xD8,   0xC7},
+};
+
+static int atlx_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+	switch (cmd) {
+	case SIOCGMIIPHY:
+	case SIOCGMIIREG:
+	case SIOCSMIIREG:
+		return atlx_mii_ioctl(netdev, ifr, cmd);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+/*
+ * atlx_set_mac - Change the Ethernet Address of the NIC
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ */
+static int atlx_set_mac(struct net_device *netdev, void *p)
+{
+	struct atlx_adapter *adapter = netdev_priv(netdev);
+	struct sockaddr *addr = p;
+
+	if (netif_running(netdev))
+		return -EBUSY;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+	memcpy(adapter->hw.mac_addr, addr->sa_data, netdev->addr_len);
+
+	atlx_set_mac_addr(&adapter->hw);
+	return 0;
+}
+
+static void atlx_check_for_link(struct atlx_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	u16 phy_data = 0;
+
+	spin_lock(&adapter->lock);
+	adapter->phy_timer_pending = false;
+	atlx_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
+	atlx_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
+	spin_unlock(&adapter->lock);
+
+	/* notify upper layer link down ASAP */
+	if (!(phy_data & BMSR_LSTATUS)) {
+		/* Link Down */
+		if (netif_carrier_ok(netdev)) {
+			/* old link state: Up */
+			dev_info(&adapter->pdev->dev, "%s link is down\n",
+				netdev->name);
+			adapter->link_speed = SPEED_0;
+			netif_carrier_off(netdev);
+			netif_stop_queue(netdev);
+		}
+	}
+	schedule_work(&adapter->link_chg_task);
+}
+
+/*
+ * atlx_set_multi - Multicast and Promiscuous mode set
+ * @netdev: network interface device structure
+ *
+ * The set_multi entry point is called whenever the multicast address
+ * list or the network interface flags are updated.  This routine is
+ * responsible for configuring the hardware for proper multicast,
+ * promiscuous mode, and all-multi behavior.
+ */
+static void atlx_set_multi(struct net_device *netdev)
+{
+	struct atlx_adapter *adapter = netdev_priv(netdev);
+	struct atlx_hw *hw = &adapter->hw;
+	struct dev_mc_list *mc_ptr;
+	u32 rctl;
+	u32 hash_value;
+
+	/* Check for Promiscuous and All Multicast modes */
+	rctl = ioread32(hw->hw_addr + REG_MAC_CTRL);
+	if (netdev->flags & IFF_PROMISC)
+		rctl |= MAC_CTRL_PROMIS_EN;
+	else if (netdev->flags & IFF_ALLMULTI) {
+		rctl |= MAC_CTRL_MC_ALL_EN;
+		rctl &= ~MAC_CTRL_PROMIS_EN;
+	} else
+		rctl &= ~(MAC_CTRL_PROMIS_EN | MAC_CTRL_MC_ALL_EN);
+
+	iowrite32(rctl, hw->hw_addr + REG_MAC_CTRL);
+
+	/* clear the old settings from the multicast hash table */
+	iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE);
+	iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2));
+
+	/* compute mc addresses' hash value ,and put it into hash table */
+	for (mc_ptr = netdev->mc_list; mc_ptr; mc_ptr = mc_ptr->next) {
+		hash_value = atlx_hash_mc_addr(hw, mc_ptr->dmi_addr);
+		atlx_hash_set(hw, hash_value);
+	}
+}
+
+/*
+ * atlx_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
+ */
+static void atlx_irq_enable(struct atlx_adapter *adapter)
+{
+	iowrite32(IMR_NORMAL_MASK, adapter->hw.hw_addr + REG_IMR);
+	ioread32(adapter->hw.hw_addr + REG_IMR);
+}
+
+/*
+ * atlx_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: board private structure
+ */
+static void atlx_irq_disable(struct atlx_adapter *adapter)
+{
+	iowrite32(0, adapter->hw.hw_addr + REG_IMR);
+	ioread32(adapter->hw.hw_addr + REG_IMR);
+	synchronize_irq(adapter->pdev->irq);
+}
+
+static void atlx_clear_phy_int(struct atlx_adapter *adapter)
+{
+	u16 phy_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&adapter->lock, flags);
+	atlx_read_phy_reg(&adapter->hw, 19, &phy_data);
+	spin_unlock_irqrestore(&adapter->lock, flags);
+}
+
+/*
+ * atlx_get_stats - Get System Network Statistics
+ * @netdev: network interface device structure
+ *
+ * Returns the address of the device statistics structure.
+ * The statistics are actually updated from the timer callback.
+ */
+static struct net_device_stats *atlx_get_stats(struct net_device *netdev)
+{
+	struct atlx_adapter *adapter = netdev_priv(netdev);
+	return &adapter->net_stats;
+}
+
+/*
+ * atlx_tx_timeout - Respond to a Tx Hang
+ * @netdev: network interface device structure
+ */
+static void atlx_tx_timeout(struct net_device *netdev)
+{
+	struct atlx_adapter *adapter = netdev_priv(netdev);
+	/* Do the reset outside of interrupt context */
+	schedule_work(&adapter->tx_timeout_task);
+}
+
+/*
+ * atlx_link_chg_task - deal with link change event Out of interrupt context
+ */
+static void atlx_link_chg_task(struct work_struct *work)
+{
+	struct atlx_adapter *adapter;
+	unsigned long flags;
+
+	adapter = container_of(work, struct atlx_adapter, link_chg_task);
+
+	spin_lock_irqsave(&adapter->lock, flags);
+	atlx_check_link(adapter);
+	spin_unlock_irqrestore(&adapter->lock, flags);
+}
+
+static void atlx_vlan_rx_register(struct net_device *netdev,
+	struct vlan_group *grp)
+{
+	struct atlx_adapter *adapter = netdev_priv(netdev);
+	unsigned long flags;
+	u32 ctrl;
+
+	spin_lock_irqsave(&adapter->lock, flags);
+	/* atlx_irq_disable(adapter); FIXME: confirm/remove */
+	adapter->vlgrp = grp;
+
+	if (grp) {
+		/* enable VLAN tag insert/strip */
+		ctrl = ioread32(adapter->hw.hw_addr + REG_MAC_CTRL);
+		ctrl |= MAC_CTRL_RMV_VLAN;
+		iowrite32(ctrl, adapter->hw.hw_addr + REG_MAC_CTRL);
+	} else {
+		/* disable VLAN tag insert/strip */
+		ctrl = ioread32(adapter->hw.hw_addr + REG_MAC_CTRL);
+		ctrl &= ~MAC_CTRL_RMV_VLAN;
+		iowrite32(ctrl, adapter->hw.hw_addr + REG_MAC_CTRL);
+	}
+
+	/* atlx_irq_enable(adapter); FIXME */
+	spin_unlock_irqrestore(&adapter->lock, flags);
+}
+
+static void atlx_restore_vlan(struct atlx_adapter *adapter)
+{
+	atlx_vlan_rx_register(adapter->netdev, adapter->vlgrp);
+}
 
 /*
  * This is the only thing that needs to be changed to adjust the
@@ -46,8 +273,9 @@
  * Default Value: 100 (200us)
  */
 static int __devinitdata int_mod_timer[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT;
-static int num_int_mod_timer = 0;
-module_param_array_named(int_mod_timer, int_mod_timer, int, &num_int_mod_timer, 0);
+static int num_int_mod_timer;
+module_param_array_named(int_mod_timer, int_mod_timer, int,
+	&num_int_mod_timer, 0);
 MODULE_PARM_DESC(int_mod_timer, "Interrupt moderator timer");
 
 /*
@@ -62,7 +290,7 @@ MODULE_PARM_DESC(int_mod_timer, "Interrupt moderator timer");
  * Default Value: 0
  */
 static int __devinitdata flash_vendor[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT;
-static int num_flash_vendor = 0;
+static int num_flash_vendor;
 module_param_array_named(flash_vendor, flash_vendor, int, &num_flash_vendor, 0);
 MODULE_PARM_DESC(flash_vendor, "SPI flash vendor");
 
@@ -94,7 +322,8 @@ struct atl1_option {
 	} arg;
 };
 
-static int __devinit atl1_validate_option(int *value, struct atl1_option *opt, struct pci_dev *pdev)
+static int __devinit atl1_validate_option(int *value, struct atl1_option *opt,
+	struct pci_dev *pdev)
 {
 	if (*value == OPTION_UNSET) {
 		*value = opt->def;
@@ -169,8 +398,8 @@ void __devinit atl1_check_options(struct atl1_adapter *adapter)
 			.err = "using default of "
 				__MODULE_STRING(DEFAULT_INT_MOD_CNT),
 			.def = DEFAULT_INT_MOD_CNT,
-			.arg = {.r =
-				{.min = MIN_INT_MOD_CNT,.max = MAX_INT_MOD_CNT}}
+			.arg = {.r = {.min = MIN_INT_MOD_CNT,
+					.max = MAX_INT_MOD_CNT} }
 		};
 		int val;
 		if (num_int_mod_timer > bd) {
@@ -188,9 +417,8 @@ void __devinit atl1_check_options(struct atl1_adapter *adapter)
 			.err = "using default of "
 				__MODULE_STRING(FLASH_VENDOR_DEFAULT),
 			.def = DEFAULT_INT_MOD_CNT,
-			.arg = {.r =
-				{.min = FLASH_VENDOR_MIN,.max =
-				 FLASH_VENDOR_MAX}}
+			.arg = {.r = {.min = FLASH_VENDOR_MIN,
+					.max = FLASH_VENDOR_MAX} }
 		};
 		int val;
 		if (num_flash_vendor > bd) {
@@ -201,3 +429,5 @@ void __devinit atl1_check_options(struct atl1_adapter *adapter)
 			adapter->hw.flash_vendor = (u8) (opt.def);
 	}
 }
+
+#endif /* ATLX_C */