diff options
author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-06-13 08:43:49 -0700 |
---|---|---|
committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-12 03:40:44 -0700 |
commit | 8c7de408fd2caa11b8b3a1ed8a1b141ce127ad4e (patch) | |
tree | 19886abfa361eebc0113143263e593909b88b259 /drivers/net/sis900.c | |
parent | 4c78893b3d107e2a053c8f51c526510857c09858 (diff) |
sis*: Move the Silicon Integrated Systems (SiS) drivers
Move the SiS drivers into drivers/net/ethernet/sis/ and make the
necessary Kconfig and Makefile changes
CC: Daniele Venzano <venza@brownhat.org>
CC: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/sis900.c')
-rw-r--r-- | drivers/net/sis900.c | 2494 |
1 files changed, 0 insertions, 2494 deletions
diff --git a/drivers/net/sis900.c b/drivers/net/sis900.c deleted file mode 100644 index 658a1928fe79..000000000000 --- a/drivers/net/sis900.c +++ /dev/null @@ -1,2494 +0,0 @@ -/* sis900.c: A SiS 900/7016 PCI Fast Ethernet driver for Linux. - Copyright 1999 Silicon Integrated System Corporation - Revision: 1.08.10 Apr. 2 2006 - - Modified from the driver which is originally written by Donald Becker. - - This software may be used and distributed according to the terms - of the GNU General Public License (GPL), incorporated herein by reference. - Drivers based on this skeleton fall under the GPL and must retain - the authorship (implicit copyright) notice. - - References: - SiS 7016 Fast Ethernet PCI Bus 10/100 Mbps LAN Controller with OnNow Support, - preliminary Rev. 1.0 Jan. 14, 1998 - SiS 900 Fast Ethernet PCI Bus 10/100 Mbps LAN Single Chip with OnNow Support, - preliminary Rev. 1.0 Nov. 10, 1998 - SiS 7014 Single Chip 100BASE-TX/10BASE-T Physical Layer Solution, - preliminary Rev. 1.0 Jan. 18, 1998 - - Rev 1.08.10 Apr. 2 2006 Daniele Venzano add vlan (jumbo packets) support - Rev 1.08.09 Sep. 19 2005 Daniele Venzano add Wake on LAN support - Rev 1.08.08 Jan. 22 2005 Daniele Venzano use netif_msg for debugging messages - Rev 1.08.07 Nov. 2 2003 Daniele Venzano <venza@brownhat.org> add suspend/resume support - Rev 1.08.06 Sep. 24 2002 Mufasa Yang bug fix for Tx timeout & add SiS963 support - Rev 1.08.05 Jun. 6 2002 Mufasa Yang bug fix for read_eeprom & Tx descriptor over-boundary - Rev 1.08.04 Apr. 25 2002 Mufasa Yang <mufasa@sis.com.tw> added SiS962 support - Rev 1.08.03 Feb. 1 2002 Matt Domsch <Matt_Domsch@dell.com> update to use library crc32 function - Rev 1.08.02 Nov. 30 2001 Hui-Fen Hsu workaround for EDB & bug fix for dhcp problem - Rev 1.08.01 Aug. 25 2001 Hui-Fen Hsu update for 630ET & workaround for ICS1893 PHY - Rev 1.08.00 Jun. 11 2001 Hui-Fen Hsu workaround for RTL8201 PHY and some bug fix - Rev 1.07.11 Apr. 2 2001 Hui-Fen Hsu updates PCI drivers to use the new pci_set_dma_mask for kernel 2.4.3 - Rev 1.07.10 Mar. 1 2001 Hui-Fen Hsu <hfhsu@sis.com.tw> some bug fix & 635M/B support - Rev 1.07.09 Feb. 9 2001 Dave Jones <davej@suse.de> PCI enable cleanup - Rev 1.07.08 Jan. 8 2001 Lei-Chun Chang added RTL8201 PHY support - Rev 1.07.07 Nov. 29 2000 Lei-Chun Chang added kernel-doc extractable documentation and 630 workaround fix - Rev 1.07.06 Nov. 7 2000 Jeff Garzik <jgarzik@pobox.com> some bug fix and cleaning - Rev 1.07.05 Nov. 6 2000 metapirat<metapirat@gmx.de> contribute media type select by ifconfig - Rev 1.07.04 Sep. 6 2000 Lei-Chun Chang added ICS1893 PHY support - Rev 1.07.03 Aug. 24 2000 Lei-Chun Chang (lcchang@sis.com.tw) modified 630E equalizer workaround rule - Rev 1.07.01 Aug. 08 2000 Ollie Lho minor update for SiS 630E and SiS 630E A1 - Rev 1.07 Mar. 07 2000 Ollie Lho bug fix in Rx buffer ring - Rev 1.06.04 Feb. 11 2000 Jeff Garzik <jgarzik@pobox.com> softnet and init for kernel 2.4 - Rev 1.06.03 Dec. 23 1999 Ollie Lho Third release - Rev 1.06.02 Nov. 23 1999 Ollie Lho bug in mac probing fixed - Rev 1.06.01 Nov. 16 1999 Ollie Lho CRC calculation provide by Joseph Zbiciak (im14u2c@primenet.com) - Rev 1.06 Nov. 4 1999 Ollie Lho (ollie@sis.com.tw) Second release - Rev 1.05.05 Oct. 29 1999 Ollie Lho (ollie@sis.com.tw) Single buffer Tx/Rx - Chin-Shan Li (lcs@sis.com.tw) Added AMD Am79c901 HomePNA PHY support - Rev 1.05 Aug. 7 1999 Jim Huang (cmhuang@sis.com.tw) Initial release -*/ - -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/string.h> -#include <linux/timer.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/netdevice.h> -#include <linux/init.h> -#include <linux/mii.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/delay.h> -#include <linux/ethtool.h> -#include <linux/crc32.h> -#include <linux/bitops.h> -#include <linux/dma-mapping.h> - -#include <asm/processor.h> /* Processor type for cache alignment. */ -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/uaccess.h> /* User space memory access functions */ - -#include "sis900.h" - -#define SIS900_MODULE_NAME "sis900" -#define SIS900_DRV_VERSION "v1.08.10 Apr. 2 2006" - -static const char version[] __devinitconst = - KERN_INFO "sis900.c: " SIS900_DRV_VERSION "\n"; - -static int max_interrupt_work = 40; -static int multicast_filter_limit = 128; - -static int sis900_debug = -1; /* Use SIS900_DEF_MSG as value */ - -#define SIS900_DEF_MSG \ - (NETIF_MSG_DRV | \ - NETIF_MSG_LINK | \ - NETIF_MSG_RX_ERR | \ - NETIF_MSG_TX_ERR) - -/* Time in jiffies before concluding the transmitter is hung. */ -#define TX_TIMEOUT (4*HZ) - -enum { - SIS_900 = 0, - SIS_7016 -}; -static const char * card_names[] = { - "SiS 900 PCI Fast Ethernet", - "SiS 7016 PCI Fast Ethernet" -}; -static DEFINE_PCI_DEVICE_TABLE(sis900_pci_tbl) = { - {PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_900, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_900}, - {PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_7016, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_7016}, - {0,} -}; -MODULE_DEVICE_TABLE (pci, sis900_pci_tbl); - -static void sis900_read_mode(struct net_device *net_dev, int *speed, int *duplex); - -static const struct mii_chip_info { - const char * name; - u16 phy_id0; - u16 phy_id1; - u8 phy_types; -#define HOME 0x0001 -#define LAN 0x0002 -#define MIX 0x0003 -#define UNKNOWN 0x0 -} mii_chip_table[] = { - { "SiS 900 Internal MII PHY", 0x001d, 0x8000, LAN }, - { "SiS 7014 Physical Layer Solution", 0x0016, 0xf830, LAN }, - { "SiS 900 on Foxconn 661 7MI", 0x0143, 0xBC70, LAN }, - { "Altimata AC101LF PHY", 0x0022, 0x5520, LAN }, - { "ADM 7001 LAN PHY", 0x002e, 0xcc60, LAN }, - { "AMD 79C901 10BASE-T PHY", 0x0000, 0x6B70, LAN }, - { "AMD 79C901 HomePNA PHY", 0x0000, 0x6B90, HOME}, - { "ICS LAN PHY", 0x0015, 0xF440, LAN }, - { "ICS LAN PHY", 0x0143, 0xBC70, LAN }, - { "NS 83851 PHY", 0x2000, 0x5C20, MIX }, - { "NS 83847 PHY", 0x2000, 0x5C30, MIX }, - { "Realtek RTL8201 PHY", 0x0000, 0x8200, LAN }, - { "VIA 6103 PHY", 0x0101, 0x8f20, LAN }, - {NULL,}, -}; - -struct mii_phy { - struct mii_phy * next; - int phy_addr; - u16 phy_id0; - u16 phy_id1; - u16 status; - u8 phy_types; -}; - -typedef struct _BufferDesc { - u32 link; - u32 cmdsts; - u32 bufptr; -} BufferDesc; - -struct sis900_private { - struct pci_dev * pci_dev; - - spinlock_t lock; - - struct mii_phy * mii; - struct mii_phy * first_mii; /* record the first mii structure */ - unsigned int cur_phy; - struct mii_if_info mii_info; - - struct timer_list timer; /* Link status detection timer. */ - u8 autong_complete; /* 1: auto-negotiate complete */ - - u32 msg_enable; - - unsigned int cur_rx, dirty_rx; /* producer/comsumer pointers for Tx/Rx ring */ - unsigned int cur_tx, dirty_tx; - - /* The saved address of a sent/receive-in-place packet buffer */ - struct sk_buff *tx_skbuff[NUM_TX_DESC]; - struct sk_buff *rx_skbuff[NUM_RX_DESC]; - BufferDesc *tx_ring; - BufferDesc *rx_ring; - - dma_addr_t tx_ring_dma; - dma_addr_t rx_ring_dma; - - unsigned int tx_full; /* The Tx queue is full. */ - u8 host_bridge_rev; - u8 chipset_rev; -}; - -MODULE_AUTHOR("Jim Huang <cmhuang@sis.com.tw>, Ollie Lho <ollie@sis.com.tw>"); -MODULE_DESCRIPTION("SiS 900 PCI Fast Ethernet driver"); -MODULE_LICENSE("GPL"); - -module_param(multicast_filter_limit, int, 0444); -module_param(max_interrupt_work, int, 0444); -module_param(sis900_debug, int, 0444); -MODULE_PARM_DESC(multicast_filter_limit, "SiS 900/7016 maximum number of filtered multicast addresses"); -MODULE_PARM_DESC(max_interrupt_work, "SiS 900/7016 maximum events handled per interrupt"); -MODULE_PARM_DESC(sis900_debug, "SiS 900/7016 bitmapped debugging message level"); - -#ifdef CONFIG_NET_POLL_CONTROLLER -static void sis900_poll(struct net_device *dev); -#endif -static int sis900_open(struct net_device *net_dev); -static int sis900_mii_probe (struct net_device * net_dev); -static void sis900_init_rxfilter (struct net_device * net_dev); -static u16 read_eeprom(long ioaddr, int location); -static int mdio_read(struct net_device *net_dev, int phy_id, int location); -static void mdio_write(struct net_device *net_dev, int phy_id, int location, int val); -static void sis900_timer(unsigned long data); -static void sis900_check_mode (struct net_device *net_dev, struct mii_phy *mii_phy); -static void sis900_tx_timeout(struct net_device *net_dev); -static void sis900_init_tx_ring(struct net_device *net_dev); -static void sis900_init_rx_ring(struct net_device *net_dev); -static netdev_tx_t sis900_start_xmit(struct sk_buff *skb, - struct net_device *net_dev); -static int sis900_rx(struct net_device *net_dev); -static void sis900_finish_xmit (struct net_device *net_dev); -static irqreturn_t sis900_interrupt(int irq, void *dev_instance); -static int sis900_close(struct net_device *net_dev); -static int mii_ioctl(struct net_device *net_dev, struct ifreq *rq, int cmd); -static u16 sis900_mcast_bitnr(u8 *addr, u8 revision); -static void set_rx_mode(struct net_device *net_dev); -static void sis900_reset(struct net_device *net_dev); -static void sis630_set_eq(struct net_device *net_dev, u8 revision); -static int sis900_set_config(struct net_device *dev, struct ifmap *map); -static u16 sis900_default_phy(struct net_device * net_dev); -static void sis900_set_capability( struct net_device *net_dev ,struct mii_phy *phy); -static u16 sis900_reset_phy(struct net_device *net_dev, int phy_addr); -static void sis900_auto_negotiate(struct net_device *net_dev, int phy_addr); -static void sis900_set_mode (long ioaddr, int speed, int duplex); -static const struct ethtool_ops sis900_ethtool_ops; - -/** - * sis900_get_mac_addr - Get MAC address for stand alone SiS900 model - * @pci_dev: the sis900 pci device - * @net_dev: the net device to get address for - * - * Older SiS900 and friends, use EEPROM to store MAC address. - * MAC address is read from read_eeprom() into @net_dev->dev_addr and - * @net_dev->perm_addr. - */ - -static int __devinit sis900_get_mac_addr(struct pci_dev * pci_dev, struct net_device *net_dev) -{ - long ioaddr = pci_resource_start(pci_dev, 0); - u16 signature; - int i; - - /* check to see if we have sane EEPROM */ - signature = (u16) read_eeprom(ioaddr, EEPROMSignature); - if (signature == 0xffff || signature == 0x0000) { - printk (KERN_WARNING "%s: Error EERPOM read %x\n", - pci_name(pci_dev), signature); - return 0; - } - - /* get MAC address from EEPROM */ - for (i = 0; i < 3; i++) - ((u16 *)(net_dev->dev_addr))[i] = read_eeprom(ioaddr, i+EEPROMMACAddr); - - /* Store MAC Address in perm_addr */ - memcpy(net_dev->perm_addr, net_dev->dev_addr, ETH_ALEN); - - return 1; -} - -/** - * sis630e_get_mac_addr - Get MAC address for SiS630E model - * @pci_dev: the sis900 pci device - * @net_dev: the net device to get address for - * - * SiS630E model, use APC CMOS RAM to store MAC address. - * APC CMOS RAM is accessed through ISA bridge. - * MAC address is read into @net_dev->dev_addr and - * @net_dev->perm_addr. - */ - -static int __devinit sis630e_get_mac_addr(struct pci_dev * pci_dev, - struct net_device *net_dev) -{ - struct pci_dev *isa_bridge = NULL; - u8 reg; - int i; - - isa_bridge = pci_get_device(PCI_VENDOR_ID_SI, 0x0008, isa_bridge); - if (!isa_bridge) - isa_bridge = pci_get_device(PCI_VENDOR_ID_SI, 0x0018, isa_bridge); - if (!isa_bridge) { - printk(KERN_WARNING "%s: Can not find ISA bridge\n", - pci_name(pci_dev)); - return 0; - } - pci_read_config_byte(isa_bridge, 0x48, ®); - pci_write_config_byte(isa_bridge, 0x48, reg | 0x40); - - for (i = 0; i < 6; i++) { - outb(0x09 + i, 0x70); - ((u8 *)(net_dev->dev_addr))[i] = inb(0x71); - } - - /* Store MAC Address in perm_addr */ - memcpy(net_dev->perm_addr, net_dev->dev_addr, ETH_ALEN); - - pci_write_config_byte(isa_bridge, 0x48, reg & ~0x40); - pci_dev_put(isa_bridge); - - return 1; -} - - -/** - * sis635_get_mac_addr - Get MAC address for SIS635 model - * @pci_dev: the sis900 pci device - * @net_dev: the net device to get address for - * - * SiS635 model, set MAC Reload Bit to load Mac address from APC - * to rfdr. rfdr is accessed through rfcr. MAC address is read into - * @net_dev->dev_addr and @net_dev->perm_addr. - */ - -static int __devinit sis635_get_mac_addr(struct pci_dev * pci_dev, - struct net_device *net_dev) -{ - long ioaddr = net_dev->base_addr; - u32 rfcrSave; - u32 i; - - rfcrSave = inl(rfcr + ioaddr); - - outl(rfcrSave | RELOAD, ioaddr + cr); - outl(0, ioaddr + cr); - - /* disable packet filtering before setting filter */ - outl(rfcrSave & ~RFEN, rfcr + ioaddr); - - /* load MAC addr to filter data register */ - for (i = 0 ; i < 3 ; i++) { - outl((i << RFADDR_shift), ioaddr + rfcr); - *( ((u16 *)net_dev->dev_addr) + i) = inw(ioaddr + rfdr); - } - - /* Store MAC Address in perm_addr */ - memcpy(net_dev->perm_addr, net_dev->dev_addr, ETH_ALEN); - - /* enable packet filtering */ - outl(rfcrSave | RFEN, rfcr + ioaddr); - - return 1; -} - -/** - * sis96x_get_mac_addr - Get MAC address for SiS962 or SiS963 model - * @pci_dev: the sis900 pci device - * @net_dev: the net device to get address for - * - * SiS962 or SiS963 model, use EEPROM to store MAC address. And EEPROM - * is shared by - * LAN and 1394. When access EEPROM, send EEREQ signal to hardware first - * and wait for EEGNT. If EEGNT is ON, EEPROM is permitted to be access - * by LAN, otherwise is not. After MAC address is read from EEPROM, send - * EEDONE signal to refuse EEPROM access by LAN. - * The EEPROM map of SiS962 or SiS963 is different to SiS900. - * The signature field in SiS962 or SiS963 spec is meaningless. - * MAC address is read into @net_dev->dev_addr and @net_dev->perm_addr. - */ - -static int __devinit sis96x_get_mac_addr(struct pci_dev * pci_dev, - struct net_device *net_dev) -{ - long ioaddr = net_dev->base_addr; - long ee_addr = ioaddr + mear; - u32 waittime = 0; - int i; - - outl(EEREQ, ee_addr); - while(waittime < 2000) { - if(inl(ee_addr) & EEGNT) { - - /* get MAC address from EEPROM */ - for (i = 0; i < 3; i++) - ((u16 *)(net_dev->dev_addr))[i] = read_eeprom(ioaddr, i+EEPROMMACAddr); - - /* Store MAC Address in perm_addr */ - memcpy(net_dev->perm_addr, net_dev->dev_addr, ETH_ALEN); - - outl(EEDONE, ee_addr); - return 1; - } else { - udelay(1); - waittime ++; - } - } - outl(EEDONE, ee_addr); - return 0; -} - -static const struct net_device_ops sis900_netdev_ops = { - .ndo_open = sis900_open, - .ndo_stop = sis900_close, - .ndo_start_xmit = sis900_start_xmit, - .ndo_set_config = sis900_set_config, - .ndo_set_multicast_list = set_rx_mode, - .ndo_change_mtu = eth_change_mtu, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, - .ndo_do_ioctl = mii_ioctl, - .ndo_tx_timeout = sis900_tx_timeout, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = sis900_poll, -#endif -}; - -/** - * sis900_probe - Probe for sis900 device - * @pci_dev: the sis900 pci device - * @pci_id: the pci device ID - * - * Check and probe sis900 net device for @pci_dev. - * Get mac address according to the chip revision, - * and assign SiS900-specific entries in the device structure. - * ie: sis900_open(), sis900_start_xmit(), sis900_close(), etc. - */ - -static int __devinit sis900_probe(struct pci_dev *pci_dev, - const struct pci_device_id *pci_id) -{ - struct sis900_private *sis_priv; - struct net_device *net_dev; - struct pci_dev *dev; - dma_addr_t ring_dma; - void *ring_space; - long ioaddr; - int i, ret; - const char *card_name = card_names[pci_id->driver_data]; - const char *dev_name = pci_name(pci_dev); - -/* when built into the kernel, we only print version if device is found */ -#ifndef MODULE - static int printed_version; - if (!printed_version++) - printk(version); -#endif - - /* setup various bits in PCI command register */ - ret = pci_enable_device(pci_dev); - if(ret) return ret; - - i = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32)); - if(i){ - printk(KERN_ERR "sis900.c: architecture does not support " - "32bit PCI busmaster DMA\n"); - return i; - } - - pci_set_master(pci_dev); - - net_dev = alloc_etherdev(sizeof(struct sis900_private)); - if (!net_dev) - return -ENOMEM; - SET_NETDEV_DEV(net_dev, &pci_dev->dev); - - /* We do a request_region() to register /proc/ioports info. */ - ioaddr = pci_resource_start(pci_dev, 0); - ret = pci_request_regions(pci_dev, "sis900"); - if (ret) - goto err_out; - - sis_priv = netdev_priv(net_dev); - net_dev->base_addr = ioaddr; - net_dev->irq = pci_dev->irq; - sis_priv->pci_dev = pci_dev; - spin_lock_init(&sis_priv->lock); - - pci_set_drvdata(pci_dev, net_dev); - - ring_space = pci_alloc_consistent(pci_dev, TX_TOTAL_SIZE, &ring_dma); - if (!ring_space) { - ret = -ENOMEM; - goto err_out_cleardev; - } - sis_priv->tx_ring = ring_space; - sis_priv->tx_ring_dma = ring_dma; - - ring_space = pci_alloc_consistent(pci_dev, RX_TOTAL_SIZE, &ring_dma); - if (!ring_space) { - ret = -ENOMEM; - goto err_unmap_tx; - } - sis_priv->rx_ring = ring_space; - sis_priv->rx_ring_dma = ring_dma; - - /* The SiS900-specific entries in the device structure. */ - net_dev->netdev_ops = &sis900_netdev_ops; - net_dev->watchdog_timeo = TX_TIMEOUT; - net_dev->ethtool_ops = &sis900_ethtool_ops; - - if (sis900_debug > 0) - sis_priv->msg_enable = sis900_debug; - else - sis_priv->msg_enable = SIS900_DEF_MSG; - - sis_priv->mii_info.dev = net_dev; - sis_priv->mii_info.mdio_read = mdio_read; - sis_priv->mii_info.mdio_write = mdio_write; - sis_priv->mii_info.phy_id_mask = 0x1f; - sis_priv->mii_info.reg_num_mask = 0x1f; - - /* Get Mac address according to the chip revision */ - sis_priv->chipset_rev = pci_dev->revision; - if(netif_msg_probe(sis_priv)) - printk(KERN_DEBUG "%s: detected revision %2.2x, " - "trying to get MAC address...\n", - dev_name, sis_priv->chipset_rev); - - ret = 0; - if (sis_priv->chipset_rev == SIS630E_900_REV) - ret = sis630e_get_mac_addr(pci_dev, net_dev); - else if ((sis_priv->chipset_rev > 0x81) && (sis_priv->chipset_rev <= 0x90) ) - ret = sis635_get_mac_addr(pci_dev, net_dev); - else if (sis_priv->chipset_rev == SIS96x_900_REV) - ret = sis96x_get_mac_addr(pci_dev, net_dev); - else - ret = sis900_get_mac_addr(pci_dev, net_dev); - - if (!ret || !is_valid_ether_addr(net_dev->dev_addr)) { - random_ether_addr(net_dev->dev_addr); - printk(KERN_WARNING "%s: Unreadable or invalid MAC address," - "using random generated one\n", dev_name); - } - - /* 630ET : set the mii access mode as software-mode */ - if (sis_priv->chipset_rev == SIS630ET_900_REV) - outl(ACCESSMODE | inl(ioaddr + cr), ioaddr + cr); - - /* probe for mii transceiver */ - if (sis900_mii_probe(net_dev) == 0) { - printk(KERN_WARNING "%s: Error probing MII device.\n", - dev_name); - ret = -ENODEV; - goto err_unmap_rx; - } - - /* save our host bridge revision */ - dev = pci_get_device(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_630, NULL); - if (dev) { - sis_priv->host_bridge_rev = dev->revision; - pci_dev_put(dev); - } - - ret = register_netdev(net_dev); - if (ret) - goto err_unmap_rx; - - /* print some information about our NIC */ - printk(KERN_INFO "%s: %s at %#lx, IRQ %d, %pM\n", - net_dev->name, card_name, ioaddr, net_dev->irq, - net_dev->dev_addr); - - /* Detect Wake on Lan support */ - ret = (inl(net_dev->base_addr + CFGPMC) & PMESP) >> 27; - if (netif_msg_probe(sis_priv) && (ret & PME_D3C) == 0) - printk(KERN_INFO "%s: Wake on LAN only available from suspend to RAM.", net_dev->name); - - return 0; - - err_unmap_rx: - pci_free_consistent(pci_dev, RX_TOTAL_SIZE, sis_priv->rx_ring, - sis_priv->rx_ring_dma); - err_unmap_tx: - pci_free_consistent(pci_dev, TX_TOTAL_SIZE, sis_priv->tx_ring, - sis_priv->tx_ring_dma); - err_out_cleardev: - pci_set_drvdata(pci_dev, NULL); - pci_release_regions(pci_dev); - err_out: - free_netdev(net_dev); - return ret; -} - -/** - * sis900_mii_probe - Probe MII PHY for sis900 - * @net_dev: the net device to probe for - * - * Search for total of 32 possible mii phy addresses. - * Identify and set current phy if found one, - * return error if it failed to found. - */ - -static int __devinit sis900_mii_probe(struct net_device * net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - const char *dev_name = pci_name(sis_priv->pci_dev); - u16 poll_bit = MII_STAT_LINK, status = 0; - unsigned long timeout = jiffies + 5 * HZ; - int phy_addr; - - sis_priv->mii = NULL; - - /* search for total of 32 possible mii phy addresses */ - for (phy_addr = 0; phy_addr < 32; phy_addr++) { - struct mii_phy * mii_phy = NULL; - u16 mii_status; - int i; - - mii_phy = NULL; - for(i = 0; i < 2; i++) - mii_status = mdio_read(net_dev, phy_addr, MII_STATUS); - - if (mii_status == 0xffff || mii_status == 0x0000) { - if (netif_msg_probe(sis_priv)) - printk(KERN_DEBUG "%s: MII at address %d" - " not accessible\n", - dev_name, phy_addr); - continue; - } - - if ((mii_phy = kmalloc(sizeof(struct mii_phy), GFP_KERNEL)) == NULL) { - printk(KERN_WARNING "Cannot allocate mem for struct mii_phy\n"); - mii_phy = sis_priv->first_mii; - while (mii_phy) { - struct mii_phy *phy; - phy = mii_phy; - mii_phy = mii_phy->next; - kfree(phy); - } - return 0; - } - - mii_phy->phy_id0 = mdio_read(net_dev, phy_addr, MII_PHY_ID0); - mii_phy->phy_id1 = mdio_read(net_dev, phy_addr, MII_PHY_ID1); - mii_phy->phy_addr = phy_addr; - mii_phy->status = mii_status; - mii_phy->next = sis_priv->mii; - sis_priv->mii = mii_phy; - sis_priv->first_mii = mii_phy; - - for (i = 0; mii_chip_table[i].phy_id1; i++) - if ((mii_phy->phy_id0 == mii_chip_table[i].phy_id0 ) && - ((mii_phy->phy_id1 & 0xFFF0) == mii_chip_table[i].phy_id1)){ - mii_phy->phy_types = mii_chip_table[i].phy_types; - if (mii_chip_table[i].phy_types == MIX) - mii_phy->phy_types = - (mii_status & (MII_STAT_CAN_TX_FDX | MII_STAT_CAN_TX)) ? LAN : HOME; - printk(KERN_INFO "%s: %s transceiver found " - "at address %d.\n", - dev_name, - mii_chip_table[i].name, - phy_addr); - break; - } - - if( !mii_chip_table[i].phy_id1 ) { - printk(KERN_INFO "%s: Unknown PHY transceiver found at address %d.\n", - dev_name, phy_addr); - mii_phy->phy_types = UNKNOWN; - } - } - - if (sis_priv->mii == NULL) { - printk(KERN_INFO "%s: No MII transceivers found!\n", dev_name); - return 0; - } - - /* select default PHY for mac */ - sis_priv->mii = NULL; - sis900_default_phy( net_dev ); - - /* Reset phy if default phy is internal sis900 */ - if ((sis_priv->mii->phy_id0 == 0x001D) && - ((sis_priv->mii->phy_id1&0xFFF0) == 0x8000)) - status = sis900_reset_phy(net_dev, sis_priv->cur_phy); - - /* workaround for ICS1893 PHY */ - if ((sis_priv->mii->phy_id0 == 0x0015) && - ((sis_priv->mii->phy_id1&0xFFF0) == 0xF440)) - mdio_write(net_dev, sis_priv->cur_phy, 0x0018, 0xD200); - - if(status & MII_STAT_LINK){ - while (poll_bit) { - yield(); - - poll_bit ^= (mdio_read(net_dev, sis_priv->cur_phy, MII_STATUS) & poll_bit); - if (time_after_eq(jiffies, timeout)) { - printk(KERN_WARNING "%s: reset phy and link down now\n", - dev_name); - return -ETIME; - } - } - } - - if (sis_priv->chipset_rev == SIS630E_900_REV) { - /* SiS 630E has some bugs on default value of PHY registers */ - mdio_write(net_dev, sis_priv->cur_phy, MII_ANADV, 0x05e1); - mdio_write(net_dev, sis_priv->cur_phy, MII_CONFIG1, 0x22); - mdio_write(net_dev, sis_priv->cur_phy, MII_CONFIG2, 0xff00); - mdio_write(net_dev, sis_priv->cur_phy, MII_MASK, 0xffc0); - //mdio_write(net_dev, sis_priv->cur_phy, MII_CONTROL, 0x1000); - } - - if (sis_priv->mii->status & MII_STAT_LINK) - netif_carrier_on(net_dev); - else - netif_carrier_off(net_dev); - - return 1; -} - -/** - * sis900_default_phy - Select default PHY for sis900 mac. - * @net_dev: the net device to probe for - * - * Select first detected PHY with link as default. - * If no one is link on, select PHY whose types is HOME as default. - * If HOME doesn't exist, select LAN. - */ - -static u16 sis900_default_phy(struct net_device * net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - struct mii_phy *phy = NULL, *phy_home = NULL, - *default_phy = NULL, *phy_lan = NULL; - u16 status; - - for (phy=sis_priv->first_mii; phy; phy=phy->next) { - status = mdio_read(net_dev, phy->phy_addr, MII_STATUS); - status = mdio_read(net_dev, phy->phy_addr, MII_STATUS); - - /* Link ON & Not select default PHY & not ghost PHY */ - if ((status & MII_STAT_LINK) && !default_phy && - (phy->phy_types != UNKNOWN)) - default_phy = phy; - else { - status = mdio_read(net_dev, phy->phy_addr, MII_CONTROL); - mdio_write(net_dev, phy->phy_addr, MII_CONTROL, - status | MII_CNTL_AUTO | MII_CNTL_ISOLATE); - if (phy->phy_types == HOME) - phy_home = phy; - else if(phy->phy_types == LAN) - phy_lan = phy; - } - } - - if (!default_phy && phy_home) - default_phy = phy_home; - else if (!default_phy && phy_lan) - default_phy = phy_lan; - else if (!default_phy) - default_phy = sis_priv->first_mii; - - if (sis_priv->mii != default_phy) { - sis_priv->mii = default_phy; - sis_priv->cur_phy = default_phy->phy_addr; - printk(KERN_INFO "%s: Using transceiver found at address %d as default\n", - pci_name(sis_priv->pci_dev), sis_priv->cur_phy); - } - - sis_priv->mii_info.phy_id = sis_priv->cur_phy; - - status = mdio_read(net_dev, sis_priv->cur_phy, MII_CONTROL); - status &= (~MII_CNTL_ISOLATE); - - mdio_write(net_dev, sis_priv->cur_phy, MII_CONTROL, status); - status = mdio_read(net_dev, sis_priv->cur_phy, MII_STATUS); - status = mdio_read(net_dev, sis_priv->cur_phy, MII_STATUS); - - return status; -} - - -/** - * sis900_set_capability - set the media capability of network adapter. - * @net_dev : the net device to probe for - * @phy : default PHY - * - * Set the media capability of network adapter according to - * mii status register. It's necessary before auto-negotiate. - */ - -static void sis900_set_capability(struct net_device *net_dev, struct mii_phy *phy) -{ - u16 cap; - u16 status; - - status = mdio_read(net_dev, phy->phy_addr, MII_STATUS); - status = mdio_read(net_dev, phy->phy_addr, MII_STATUS); - - cap = MII_NWAY_CSMA_CD | - ((phy->status & MII_STAT_CAN_TX_FDX)? MII_NWAY_TX_FDX:0) | - ((phy->status & MII_STAT_CAN_TX) ? MII_NWAY_TX:0) | - ((phy->status & MII_STAT_CAN_T_FDX) ? MII_NWAY_T_FDX:0)| - ((phy->status & MII_STAT_CAN_T) ? MII_NWAY_T:0); - - mdio_write(net_dev, phy->phy_addr, MII_ANADV, cap); -} - - -/* Delay between EEPROM clock transitions. */ -#define eeprom_delay() inl(ee_addr) - -/** - * read_eeprom - Read Serial EEPROM - * @ioaddr: base i/o address - * @location: the EEPROM location to read - * - * Read Serial EEPROM through EEPROM Access Register. - * Note that location is in word (16 bits) unit - */ - -static u16 __devinit read_eeprom(long ioaddr, int location) -{ - int i; - u16 retval = 0; - long ee_addr = ioaddr + mear; - u32 read_cmd = location | EEread; - - outl(0, ee_addr); - eeprom_delay(); - outl(EECS, ee_addr); - eeprom_delay(); - - /* Shift the read command (9) bits out. */ - for (i = 8; i >= 0; i--) { - u32 dataval = (read_cmd & (1 << i)) ? EEDI | EECS : EECS; - outl(dataval, ee_addr); - eeprom_delay(); - outl(dataval | EECLK, ee_addr); - eeprom_delay(); - } - outl(EECS, ee_addr); - eeprom_delay(); - - /* read the 16-bits data in */ - for (i = 16; i > 0; i--) { - outl(EECS, ee_addr); - eeprom_delay(); - outl(EECS | EECLK, ee_addr); - eeprom_delay(); - retval = (retval << 1) | ((inl(ee_addr) & EEDO) ? 1 : 0); - eeprom_delay(); - } - - /* Terminate the EEPROM access. */ - outl(0, ee_addr); - eeprom_delay(); - - return retval; -} - -/* Read and write the MII management registers using software-generated - serial MDIO protocol. Note that the command bits and data bits are - send out separately */ -#define mdio_delay() inl(mdio_addr) - -static void mdio_idle(long mdio_addr) -{ - outl(MDIO | MDDIR, mdio_addr); - mdio_delay(); - outl(MDIO | MDDIR | MDC, mdio_addr); -} - -/* Syncronize the MII management interface by shifting 32 one bits out. */ -static void mdio_reset(long mdio_addr) -{ - int i; - - for (i = 31; i >= 0; i--) { - outl(MDDIR | MDIO, mdio_addr); - mdio_delay(); - outl(MDDIR | MDIO | MDC, mdio_addr); - mdio_delay(); - } -} - -/** - * mdio_read - read MII PHY register - * @net_dev: the net device to read - * @phy_id: the phy address to read - * @location: the phy regiester id to read - * - * Read MII registers through MDIO and MDC - * using MDIO management frame structure and protocol(defined by ISO/IEC). - * Please see SiS7014 or ICS spec - */ - -static int mdio_read(struct net_device *net_dev, int phy_id, int location) -{ - long mdio_addr = net_dev->base_addr + mear; - int mii_cmd = MIIread|(phy_id<<MIIpmdShift)|(location<<MIIregShift); - u16 retval = 0; - int i; - - mdio_reset(mdio_addr); - mdio_idle(mdio_addr); - - for (i = 15; i >= 0; i--) { - int dataval = (mii_cmd & (1 << i)) ? MDDIR | MDIO : MDDIR; - outl(dataval, mdio_addr); - mdio_delay(); - outl(dataval | MDC, mdio_addr); - mdio_delay(); - } - - /* Read the 16 data bits. */ - for (i = 16; i > 0; i--) { - outl(0, mdio_addr); - mdio_delay(); - retval = (retval << 1) | ((inl(mdio_addr) & MDIO) ? 1 : 0); - outl(MDC, mdio_addr); - mdio_delay(); - } - outl(0x00, mdio_addr); - - return retval; -} - -/** - * mdio_write - write MII PHY register - * @net_dev: the net device to write - * @phy_id: the phy address to write - * @location: the phy regiester id to write - * @value: the register value to write with - * - * Write MII registers with @value through MDIO and MDC - * using MDIO management frame structure and protocol(defined by ISO/IEC) - * please see SiS7014 or ICS spec - */ - -static void mdio_write(struct net_device *net_dev, int phy_id, int location, - int value) -{ - long mdio_addr = net_dev->base_addr + mear; - int mii_cmd = MIIwrite|(phy_id<<MIIpmdShift)|(location<<MIIregShift); - int i; - - mdio_reset(mdio_addr); - mdio_idle(mdio_addr); - - /* Shift the command bits out. */ - for (i = 15; i >= 0; i--) { - int dataval = (mii_cmd & (1 << i)) ? MDDIR | MDIO : MDDIR; - outb(dataval, mdio_addr); - mdio_delay(); - outb(dataval | MDC, mdio_addr); - mdio_delay(); - } - mdio_delay(); - - /* Shift the value bits out. */ - for (i = 15; i >= 0; i--) { - int dataval = (value & (1 << i)) ? MDDIR | MDIO : MDDIR; - outl(dataval, mdio_addr); - mdio_delay(); - outl(dataval | MDC, mdio_addr); - mdio_delay(); - } - mdio_delay(); - - /* Clear out extra bits. */ - for (i = 2; i > 0; i--) { - outb(0, mdio_addr); - mdio_delay(); - outb(MDC, mdio_addr); - mdio_delay(); - } - outl(0x00, mdio_addr); -} - - -/** - * sis900_reset_phy - reset sis900 mii phy. - * @net_dev: the net device to write - * @phy_addr: default phy address - * - * Some specific phy can't work properly without reset. - * This function will be called during initialization and - * link status change from ON to DOWN. - */ - -static u16 sis900_reset_phy(struct net_device *net_dev, int phy_addr) -{ - int i; - u16 status; - - for (i = 0; i < 2; i++) - status = mdio_read(net_dev, phy_addr, MII_STATUS); - - mdio_write( net_dev, phy_addr, MII_CONTROL, MII_CNTL_RESET ); - - return status; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -/* - * Polling 'interrupt' - used by things like netconsole to send skbs - * without having to re-enable interrupts. It's not called while - * the interrupt routine is executing. -*/ -static void sis900_poll(struct net_device *dev) -{ - disable_irq(dev->irq); - sis900_interrupt(dev->irq, dev); - enable_irq(dev->irq); -} -#endif - -/** - * sis900_open - open sis900 device - * @net_dev: the net device to open - * - * Do some initialization and start net interface. - * enable interrupts and set sis900 timer. - */ - -static int -sis900_open(struct net_device *net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - long ioaddr = net_dev->base_addr; - int ret; - - /* Soft reset the chip. */ - sis900_reset(net_dev); - - /* Equalizer workaround Rule */ - sis630_set_eq(net_dev, sis_priv->chipset_rev); - - ret = request_irq(net_dev->irq, sis900_interrupt, IRQF_SHARED, - net_dev->name, net_dev); - if (ret) - return ret; - - sis900_init_rxfilter(net_dev); - - sis900_init_tx_ring(net_dev); - sis900_init_rx_ring(net_dev); - - set_rx_mode(net_dev); - - netif_start_queue(net_dev); - - /* Workaround for EDB */ - sis900_set_mode(ioaddr, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED); - - /* Enable all known interrupts by setting the interrupt mask. */ - outl((RxSOVR|RxORN|RxERR|RxOK|TxURN|TxERR|TxIDLE), ioaddr + imr); - outl(RxENA | inl(ioaddr + cr), ioaddr + cr); - outl(IE, ioaddr + ier); - - sis900_check_mode(net_dev, sis_priv->mii); - - /* Set the timer to switch to check for link beat and perhaps switch - to an alternate media type. */ - init_timer(&sis_priv->timer); - sis_priv->timer.expires = jiffies + HZ; - sis_priv->timer.data = (unsigned long)net_dev; - sis_priv->timer.function = sis900_timer; - add_timer(&sis_priv->timer); - - return 0; -} - -/** - * sis900_init_rxfilter - Initialize the Rx filter - * @net_dev: the net device to initialize for - * - * Set receive filter address to our MAC address - * and enable packet filtering. - */ - -static void -sis900_init_rxfilter (struct net_device * net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - long ioaddr = net_dev->base_addr; - u32 rfcrSave; - u32 i; - - rfcrSave = inl(rfcr + ioaddr); - - /* disable packet filtering before setting filter */ - outl(rfcrSave & ~RFEN, rfcr + ioaddr); - - /* load MAC addr to filter data register */ - for (i = 0 ; i < 3 ; i++) { - u32 w; - - w = (u32) *((u16 *)(net_dev->dev_addr)+i); - outl((i << RFADDR_shift), ioaddr + rfcr); - outl(w, ioaddr + rfdr); - - if (netif_msg_hw(sis_priv)) { - printk(KERN_DEBUG "%s: Receive Filter Addrss[%d]=%x\n", - net_dev->name, i, inl(ioaddr + rfdr)); - } - } - - /* enable packet filtering */ - outl(rfcrSave | RFEN, rfcr + ioaddr); -} - -/** - * sis900_init_tx_ring - Initialize the Tx descriptor ring - * @net_dev: the net device to initialize for - * - * Initialize the Tx descriptor ring, - */ - -static void -sis900_init_tx_ring(struct net_device *net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - long ioaddr = net_dev->base_addr; - int i; - - sis_priv->tx_full = 0; - sis_priv->dirty_tx = sis_priv->cur_tx = 0; - - for (i = 0; i < NUM_TX_DESC; i++) { - sis_priv->tx_skbuff[i] = NULL; - - sis_priv->tx_ring[i].link = sis_priv->tx_ring_dma + - ((i+1)%NUM_TX_DESC)*sizeof(BufferDesc); - sis_priv->tx_ring[i].cmdsts = 0; - sis_priv->tx_ring[i].bufptr = 0; - } - - /* load Transmit Descriptor Register */ - outl(sis_priv->tx_ring_dma, ioaddr + txdp); - if (netif_msg_hw(sis_priv)) - printk(KERN_DEBUG "%s: TX descriptor register loaded with: %8.8x\n", - net_dev->name, inl(ioaddr + txdp)); -} - -/** - * sis900_init_rx_ring - Initialize the Rx descriptor ring - * @net_dev: the net device to initialize for - * - * Initialize the Rx descriptor ring, - * and pre-allocate recevie buffers (socket buffer) - */ - -static void -sis900_init_rx_ring(struct net_device *net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - long ioaddr = net_dev->base_addr; - int i; - - sis_priv->cur_rx = 0; - sis_priv->dirty_rx = 0; - - /* init RX descriptor */ - for (i = 0; i < NUM_RX_DESC; i++) { - sis_priv->rx_skbuff[i] = NULL; - - sis_priv->rx_ring[i].link = sis_priv->rx_ring_dma + - ((i+1)%NUM_RX_DESC)*sizeof(BufferDesc); - sis_priv->rx_ring[i].cmdsts = 0; - sis_priv->rx_ring[i].bufptr = 0; - } - - /* allocate sock buffers */ - for (i = 0; i < NUM_RX_DESC; i++) { - struct sk_buff *skb; - - if ((skb = dev_alloc_skb(RX_BUF_SIZE)) == NULL) { - /* not enough memory for skbuff, this makes a "hole" - on the buffer ring, it is not clear how the - hardware will react to this kind of degenerated - buffer */ - break; - } - sis_priv->rx_skbuff[i] = skb; - sis_priv->rx_ring[i].cmdsts = RX_BUF_SIZE; - sis_priv->rx_ring[i].bufptr = pci_map_single(sis_priv->pci_dev, - skb->data, RX_BUF_SIZE, PCI_DMA_FROMDEVICE); - } - sis_priv->dirty_rx = (unsigned int) (i - NUM_RX_DESC); - - /* load Receive Descriptor Register */ - outl(sis_priv->rx_ring_dma, ioaddr + rxdp); - if (netif_msg_hw(sis_priv)) - printk(KERN_DEBUG "%s: RX descriptor register loaded with: %8.8x\n", - net_dev->name, inl(ioaddr + rxdp)); -} - -/** - * sis630_set_eq - set phy equalizer value for 630 LAN - * @net_dev: the net device to set equalizer value - * @revision: 630 LAN revision number - * - * 630E equalizer workaround rule(Cyrus Huang 08/15) - * PHY register 14h(Test) - * Bit 14: 0 -- Automatically detect (default) - * 1 -- Manually set Equalizer filter - * Bit 13: 0 -- (Default) - * 1 -- Speed up convergence of equalizer setting - * Bit 9 : 0 -- (Default) - * 1 -- Disable Baseline Wander - * Bit 3~7 -- Equalizer filter setting - * Link ON: Set Bit 9, 13 to 1, Bit 14 to 0 - * Then calculate equalizer value - * Then set equalizer value, and set Bit 14 to 1, Bit 9 to 0 - * Link Off:Set Bit 13 to 1, Bit 14 to 0 - * Calculate Equalizer value: - * When Link is ON and Bit 14 is 0, SIS900PHY will auto-detect proper equalizer value. - * When the equalizer is stable, this value is not a fixed value. It will be within - * a small range(eg. 7~9). Then we get a minimum and a maximum value(eg. min=7, max=9) - * 0 <= max <= 4 --> set equalizer to max - * 5 <= max <= 14 --> set equalizer to max+1 or set equalizer to max+2 if max == min - * max >= 15 --> set equalizer to max+5 or set equalizer to max+6 if max == min - */ - -static void sis630_set_eq(struct net_device *net_dev, u8 revision) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - u16 reg14h, eq_value=0, max_value=0, min_value=0; - int i, maxcount=10; - - if ( !(revision == SIS630E_900_REV || revision == SIS630EA1_900_REV || - revision == SIS630A_900_REV || revision == SIS630ET_900_REV) ) - return; - - if (netif_carrier_ok(net_dev)) { - reg14h = mdio_read(net_dev, sis_priv->cur_phy, MII_RESV); - mdio_write(net_dev, sis_priv->cur_phy, MII_RESV, - (0x2200 | reg14h) & 0xBFFF); - for (i=0; i < maxcount; i++) { - eq_value = (0x00F8 & mdio_read(net_dev, - sis_priv->cur_phy, MII_RESV)) >> 3; - if (i == 0) - max_value=min_value=eq_value; - max_value = (eq_value > max_value) ? - eq_value : max_value; - min_value = (eq_value < min_value) ? - eq_value : min_value; - } - /* 630E rule to determine the equalizer value */ - if (revision == SIS630E_900_REV || revision == SIS630EA1_900_REV || - revision == SIS630ET_900_REV) { - if (max_value < 5) - eq_value = max_value; - else if (max_value >= 5 && max_value < 15) - eq_value = (max_value == min_value) ? - max_value+2 : max_value+1; - else if (max_value >= 15) - eq_value=(max_value == min_value) ? - max_value+6 : max_value+5; - } - /* 630B0&B1 rule to determine the equalizer value */ - if (revision == SIS630A_900_REV && - (sis_priv->host_bridge_rev == SIS630B0 || - sis_priv->host_bridge_rev == SIS630B1)) { - if (max_value == 0) - eq_value = 3; - else - eq_value = (max_value + min_value + 1)/2; - } - /* write equalizer value and setting */ - reg14h = mdio_read(net_dev, sis_priv->cur_phy, MII_RESV); - reg14h = (reg14h & 0xFF07) | ((eq_value << 3) & 0x00F8); - reg14h = (reg14h | 0x6000) & 0xFDFF; - mdio_write(net_dev, sis_priv->cur_phy, MII_RESV, reg14h); - } else { - reg14h = mdio_read(net_dev, sis_priv->cur_phy, MII_RESV); - if (revision == SIS630A_900_REV && - (sis_priv->host_bridge_rev == SIS630B0 || - sis_priv->host_bridge_rev == SIS630B1)) - mdio_write(net_dev, sis_priv->cur_phy, MII_RESV, - (reg14h | 0x2200) & 0xBFFF); - else - mdio_write(net_dev, sis_priv->cur_phy, MII_RESV, - (reg14h | 0x2000) & 0xBFFF); - } -} - -/** - * sis900_timer - sis900 timer routine - * @data: pointer to sis900 net device - * - * On each timer ticks we check two things, - * link status (ON/OFF) and link mode (10/100/Full/Half) - */ - -static void sis900_timer(unsigned long data) -{ - struct net_device *net_dev = (struct net_device *)data; - struct sis900_private *sis_priv = netdev_priv(net_dev); - struct mii_phy *mii_phy = sis_priv->mii; - static const int next_tick = 5*HZ; - u16 status; - - if (!sis_priv->autong_complete){ - int uninitialized_var(speed), duplex = 0; - - sis900_read_mode(net_dev, &speed, &duplex); - if (duplex){ - sis900_set_mode(net_dev->base_addr, speed, duplex); - sis630_set_eq(net_dev, sis_priv->chipset_rev); - netif_start_queue(net_dev); - } - - sis_priv->timer.expires = jiffies + HZ; - add_timer(&sis_priv->timer); - return; - } - - status = mdio_read(net_dev, sis_priv->cur_phy, MII_STATUS); - status = mdio_read(net_dev, sis_priv->cur_phy, MII_STATUS); - - /* Link OFF -> ON */ - if (!netif_carrier_ok(net_dev)) { - LookForLink: - /* Search for new PHY */ - status = sis900_default_phy(net_dev); - mii_phy = sis_priv->mii; - - if (status & MII_STAT_LINK){ - sis900_check_mode(net_dev, mii_phy); - netif_carrier_on(net_dev); - } - } else { - /* Link ON -> OFF */ - if (!(status & MII_STAT_LINK)){ - netif_carrier_off(net_dev); - if(netif_msg_link(sis_priv)) - printk(KERN_INFO "%s: Media Link Off\n", net_dev->name); - - /* Change mode issue */ - if ((mii_phy->phy_id0 == 0x001D) && - ((mii_phy->phy_id1 & 0xFFF0) == 0x8000)) - sis900_reset_phy(net_dev, sis_priv->cur_phy); - - sis630_set_eq(net_dev, sis_priv->chipset_rev); - - goto LookForLink; - } - } - - sis_priv->timer.expires = jiffies + next_tick; - add_timer(&sis_priv->timer); -} - -/** - * sis900_check_mode - check the media mode for sis900 - * @net_dev: the net device to be checked - * @mii_phy: the mii phy - * - * Older driver gets the media mode from mii status output - * register. Now we set our media capability and auto-negotiate - * to get the upper bound of speed and duplex between two ends. - * If the types of mii phy is HOME, it doesn't need to auto-negotiate - * and autong_complete should be set to 1. - */ - -static void sis900_check_mode(struct net_device *net_dev, struct mii_phy *mii_phy) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - long ioaddr = net_dev->base_addr; - int speed, duplex; - - if (mii_phy->phy_types == LAN) { - outl(~EXD & inl(ioaddr + cfg), ioaddr + cfg); - sis900_set_capability(net_dev , mii_phy); - sis900_auto_negotiate(net_dev, sis_priv->cur_phy); - } else { - outl(EXD | inl(ioaddr + cfg), ioaddr + cfg); - speed = HW_SPEED_HOME; - duplex = FDX_CAPABLE_HALF_SELECTED; - sis900_set_mode(ioaddr, speed, duplex); - sis_priv->autong_complete = 1; - } -} - -/** - * sis900_set_mode - Set the media mode of mac register. - * @ioaddr: the address of the device - * @speed : the transmit speed to be determined - * @duplex: the duplex mode to be determined - * - * Set the media mode of mac register txcfg/rxcfg according to - * speed and duplex of phy. Bit EDB_MASTER_EN indicates the EDB - * bus is used instead of PCI bus. When this bit is set 1, the - * Max DMA Burst Size for TX/RX DMA should be no larger than 16 - * double words. - */ - -static void sis900_set_mode (long ioaddr, int speed, int duplex) -{ - u32 tx_flags = 0, rx_flags = 0; - - if (inl(ioaddr + cfg) & EDB_MASTER_EN) { - tx_flags = TxATP | (DMA_BURST_64 << TxMXDMA_shift) | - (TX_FILL_THRESH << TxFILLT_shift); - rx_flags = DMA_BURST_64 << RxMXDMA_shift; - } else { - tx_flags = TxATP | (DMA_BURST_512 << TxMXDMA_shift) | - (TX_FILL_THRESH << TxFILLT_shift); - rx_flags = DMA_BURST_512 << RxMXDMA_shift; - } - - if (speed == HW_SPEED_HOME || speed == HW_SPEED_10_MBPS) { - rx_flags |= (RxDRNT_10 << RxDRNT_shift); - tx_flags |= (TxDRNT_10 << TxDRNT_shift); - } else { - rx_flags |= (RxDRNT_100 << RxDRNT_shift); - tx_flags |= (TxDRNT_100 << TxDRNT_shift); - } - - if (duplex == FDX_CAPABLE_FULL_SELECTED) { - tx_flags |= (TxCSI | TxHBI); - rx_flags |= RxATX; - } - -#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) - /* Can accept Jumbo packet */ - rx_flags |= RxAJAB; -#endif - - outl (tx_flags, ioaddr + txcfg); - outl (rx_flags, ioaddr + rxcfg); -} - -/** - * sis900_auto_negotiate - Set the Auto-Negotiation Enable/Reset bit. - * @net_dev: the net device to read mode for - * @phy_addr: mii phy address - * - * If the adapter is link-on, set the auto-negotiate enable/reset bit. - * autong_complete should be set to 0 when starting auto-negotiation. - * autong_complete should be set to 1 if we didn't start auto-negotiation. - * sis900_timer will wait for link on again if autong_complete = 0. - */ - -static void sis900_auto_negotiate(struct net_device *net_dev, int phy_addr) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - int i = 0; - u32 status; - - for (i = 0; i < 2; i++) - status = mdio_read(net_dev, phy_addr, MII_STATUS); - - if (!(status & MII_STAT_LINK)){ - if(netif_msg_link(sis_priv)) - printk(KERN_INFO "%s: Media Link Off\n", net_dev->name); - sis_priv->autong_complete = 1; - netif_carrier_off(net_dev); - return; - } - - /* (Re)start AutoNegotiate */ - mdio_write(net_dev, phy_addr, MII_CONTROL, - MII_CNTL_AUTO | MII_CNTL_RST_AUTO); - sis_priv->autong_complete = 0; -} - - -/** - * sis900_read_mode - read media mode for sis900 internal phy - * @net_dev: the net device to read mode for - * @speed : the transmit speed to be determined - * @duplex : the duplex mode to be determined - * - * The capability of remote end will be put in mii register autorec - * after auto-negotiation. Use AND operation to get the upper bound - * of speed and duplex between two ends. - */ - -static void sis900_read_mode(struct net_device *net_dev, int *speed, int *duplex) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - struct mii_phy *phy = sis_priv->mii; - int phy_addr = sis_priv->cur_phy; - u32 status; - u16 autoadv, autorec; - int i; - - for (i = 0; i < 2; i++) - status = mdio_read(net_dev, phy_addr, MII_STATUS); - - if (!(status & MII_STAT_LINK)) - return; - - /* AutoNegotiate completed */ - autoadv = mdio_read(net_dev, phy_addr, MII_ANADV); - autorec = mdio_read(net_dev, phy_addr, MII_ANLPAR); - status = autoadv & autorec; - - *speed = HW_SPEED_10_MBPS; - *duplex = FDX_CAPABLE_HALF_SELECTED; - - if (status & (MII_NWAY_TX | MII_NWAY_TX_FDX)) - *speed = HW_SPEED_100_MBPS; - if (status & ( MII_NWAY_TX_FDX | MII_NWAY_T_FDX)) - *duplex = FDX_CAPABLE_FULL_SELECTED; - - sis_priv->autong_complete = 1; - - /* Workaround for Realtek RTL8201 PHY issue */ - if ((phy->phy_id0 == 0x0000) && ((phy->phy_id1 & 0xFFF0) == 0x8200)) { - if (mdio_read(net_dev, phy_addr, MII_CONTROL) & MII_CNTL_FDX) - *duplex = FDX_CAPABLE_FULL_SELECTED; - if (mdio_read(net_dev, phy_addr, 0x0019) & 0x01) - *speed = HW_SPEED_100_MBPS; - } - - if(netif_msg_link(sis_priv)) - printk(KERN_INFO "%s: Media Link On %s %s-duplex\n", - net_dev->name, - *speed == HW_SPEED_100_MBPS ? - "100mbps" : "10mbps", - *duplex == FDX_CAPABLE_FULL_SELECTED ? - "full" : "half"); -} - -/** - * sis900_tx_timeout - sis900 transmit timeout routine - * @net_dev: the net device to transmit - * - * print transmit timeout status - * disable interrupts and do some tasks - */ - -static void sis900_tx_timeout(struct net_device *net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - long ioaddr = net_dev->base_addr; - unsigned long flags; - int i; - - if(netif_msg_tx_err(sis_priv)) - printk(KERN_INFO "%s: Transmit timeout, status %8.8x %8.8x\n", - net_dev->name, inl(ioaddr + cr), inl(ioaddr + isr)); - - /* Disable interrupts by clearing the interrupt mask. */ - outl(0x0000, ioaddr + imr); - - /* use spinlock to prevent interrupt handler accessing buffer ring */ - spin_lock_irqsave(&sis_priv->lock, flags); - - /* discard unsent packets */ - sis_priv->dirty_tx = sis_priv->cur_tx = 0; - for (i = 0; i < NUM_TX_DESC; i++) { - struct sk_buff *skb = sis_priv->tx_skbuff[i]; - - if (skb) { - pci_unmap_single(sis_priv->pci_dev, - sis_priv->tx_ring[i].bufptr, skb->len, - PCI_DMA_TODEVICE); - dev_kfree_skb_irq(skb); - sis_priv->tx_skbuff[i] = NULL; - sis_priv->tx_ring[i].cmdsts = 0; - sis_priv->tx_ring[i].bufptr = 0; - net_dev->stats.tx_dropped++; - } - } - sis_priv->tx_full = 0; - netif_wake_queue(net_dev); - - spin_unlock_irqrestore(&sis_priv->lock, flags); - - net_dev->trans_start = jiffies; /* prevent tx timeout */ - - /* load Transmit Descriptor Register */ - outl(sis_priv->tx_ring_dma, ioaddr + txdp); - - /* Enable all known interrupts by setting the interrupt mask. */ - outl((RxSOVR|RxORN|RxERR|RxOK|TxURN|TxERR|TxIDLE), ioaddr + imr); -} - -/** - * sis900_start_xmit - sis900 start transmit routine - * @skb: socket buffer pointer to put the data being transmitted - * @net_dev: the net device to transmit with - * - * Set the transmit buffer descriptor, - * and write TxENA to enable transmit state machine. - * tell upper layer if the buffer is full - */ - -static netdev_tx_t -sis900_start_xmit(struct sk_buff *skb, struct net_device *net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - long ioaddr = net_dev->base_addr; - unsigned int entry; - unsigned long flags; - unsigned int index_cur_tx, index_dirty_tx; - unsigned int count_dirty_tx; - - /* Don't transmit data before the complete of auto-negotiation */ - if(!sis_priv->autong_complete){ - netif_stop_queue(net_dev); - return NETDEV_TX_BUSY; - } - - spin_lock_irqsave(&sis_priv->lock, flags); - - /* Calculate the next Tx descriptor entry. */ - entry = sis_priv->cur_tx % NUM_TX_DESC; - sis_priv->tx_skbuff[entry] = skb; - - /* set the transmit buffer descriptor and enable Transmit State Machine */ - sis_priv->tx_ring[entry].bufptr = pci_map_single(sis_priv->pci_dev, - skb->data, skb->len, PCI_DMA_TODEVICE); - sis_priv->tx_ring[entry].cmdsts = (OWN | skb->len); - outl(TxENA | inl(ioaddr + cr), ioaddr + cr); - - sis_priv->cur_tx ++; - index_cur_tx = sis_priv->cur_tx; - index_dirty_tx = sis_priv->dirty_tx; - - for (count_dirty_tx = 0; index_cur_tx != index_dirty_tx; index_dirty_tx++) - count_dirty_tx ++; - - if (index_cur_tx == index_dirty_tx) { - /* dirty_tx is met in the cycle of cur_tx, buffer full */ - sis_priv->tx_full = 1; - netif_stop_queue(net_dev); - } else if (count_dirty_tx < NUM_TX_DESC) { - /* Typical path, tell upper layer that more transmission is possible */ - netif_start_queue(net_dev); - } else { - /* buffer full, tell upper layer no more transmission */ - sis_priv->tx_full = 1; - netif_stop_queue(net_dev); - } - - spin_unlock_irqrestore(&sis_priv->lock, flags); - - if (netif_msg_tx_queued(sis_priv)) - printk(KERN_DEBUG "%s: Queued Tx packet at %p size %d " - "to slot %d.\n", - net_dev->name, skb->data, (int)skb->len, entry); - - return NETDEV_TX_OK; -} - -/** - * sis900_interrupt - sis900 interrupt handler - * @irq: the irq number - * @dev_instance: the client data object - * - * The interrupt handler does all of the Rx thread work, - * and cleans up after the Tx thread - */ - -static irqreturn_t sis900_interrupt(int irq, void *dev_instance) -{ - struct net_device *net_dev = dev_instance; - struct sis900_private *sis_priv = netdev_priv(net_dev); - int boguscnt = max_interrupt_work; - long ioaddr = net_dev->base_addr; - u32 status; - unsigned int handled = 0; - - spin_lock (&sis_priv->lock); - - do { - status = inl(ioaddr + isr); - - if ((status & (HIBERR|TxURN|TxERR|TxIDLE|RxORN|RxERR|RxOK)) == 0) - /* nothing intresting happened */ - break; - handled = 1; - - /* why dow't we break after Tx/Rx case ?? keyword: full-duplex */ - if (status & (RxORN | RxERR | RxOK)) - /* Rx interrupt */ - sis900_rx(net_dev); - - if (status & (TxURN | TxERR | TxIDLE)) - /* Tx interrupt */ - sis900_finish_xmit(net_dev); - - /* something strange happened !!! */ - if (status & HIBERR) { - if(netif_msg_intr(sis_priv)) - printk(KERN_INFO "%s: Abnormal interrupt, " - "status %#8.8x.\n", net_dev->name, status); - break; - } - if (--boguscnt < 0) { - if(netif_msg_intr(sis_priv)) - printk(KERN_INFO "%s: Too much work at interrupt, " - "interrupt status = %#8.8x.\n", - net_dev->name, status); - break; - } - } while (1); - - if(netif_msg_intr(sis_priv)) - printk(KERN_DEBUG "%s: exiting interrupt, " - "interrupt status = 0x%#8.8x.\n", - net_dev->name, inl(ioaddr + isr)); - - spin_unlock (&sis_priv->lock); - return IRQ_RETVAL(handled); -} - -/** - * sis900_rx - sis900 receive routine - * @net_dev: the net device which receives data - * - * Process receive interrupt events, - * put buffer to higher layer and refill buffer pool - * Note: This function is called by interrupt handler, - * don't do "too much" work here - */ - -static int sis900_rx(struct net_device *net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - long ioaddr = net_dev->base_addr; - unsigned int entry = sis_priv->cur_rx % NUM_RX_DESC; - u32 rx_status = sis_priv->rx_ring[entry].cmdsts; - int rx_work_limit; - - if (netif_msg_rx_status(sis_priv)) - printk(KERN_DEBUG "sis900_rx, cur_rx:%4.4d, dirty_rx:%4.4d " - "status:0x%8.8x\n", - sis_priv->cur_rx, sis_priv->dirty_rx, rx_status); - rx_work_limit = sis_priv->dirty_rx + NUM_RX_DESC - sis_priv->cur_rx; - - while (rx_status & OWN) { - unsigned int rx_size; - unsigned int data_size; - - if (--rx_work_limit < 0) - break; - - data_size = rx_status & DSIZE; - rx_size = data_size - CRC_SIZE; - -#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) - /* ``TOOLONG'' flag means jumbo packet received. */ - if ((rx_status & TOOLONG) && data_size <= MAX_FRAME_SIZE) - rx_status &= (~ ((unsigned int)TOOLONG)); -#endif - - if (rx_status & (ABORT|OVERRUN|TOOLONG|RUNT|RXISERR|CRCERR|FAERR)) { - /* corrupted packet received */ - if (netif_msg_rx_err(sis_priv)) - printk(KERN_DEBUG "%s: Corrupted packet " - "received, buffer status = 0x%8.8x/%d.\n", - net_dev->name, rx_status, data_size); - net_dev->stats.rx_errors++; - if (rx_status & OVERRUN) - net_dev->stats.rx_over_errors++; - if (rx_status & (TOOLONG|RUNT)) - net_dev->stats.rx_length_errors++; - if (rx_status & (RXISERR | FAERR)) - net_dev->stats.rx_frame_errors++; - if (rx_status & CRCERR) - net_dev->stats.rx_crc_errors++; - /* reset buffer descriptor state */ - sis_priv->rx_ring[entry].cmdsts = RX_BUF_SIZE; - } else { - struct sk_buff * skb; - struct sk_buff * rx_skb; - - pci_unmap_single(sis_priv->pci_dev, - sis_priv->rx_ring[entry].bufptr, RX_BUF_SIZE, - PCI_DMA_FROMDEVICE); - - /* refill the Rx buffer, what if there is not enough - * memory for new socket buffer ?? */ - if ((skb = dev_alloc_skb(RX_BUF_SIZE)) == NULL) { - /* - * Not enough memory to refill the buffer - * so we need to recycle the old one so - * as to avoid creating a memory hole - * in the rx ring - */ - skb = sis_priv->rx_skbuff[entry]; - net_dev->stats.rx_dropped++; - goto refill_rx_ring; - } - - /* This situation should never happen, but due to - some unknown bugs, it is possible that - we are working on NULL sk_buff :-( */ - if (sis_priv->rx_skbuff[entry] == NULL) { - if (netif_msg_rx_err(sis_priv)) - printk(KERN_WARNING "%s: NULL pointer " - "encountered in Rx ring\n" - "cur_rx:%4.4d, dirty_rx:%4.4d\n", - net_dev->name, sis_priv->cur_rx, - sis_priv->dirty_rx); - dev_kfree_skb(skb); - break; - } - - /* give the socket buffer to upper layers */ - rx_skb = sis_priv->rx_skbuff[entry]; - skb_put(rx_skb, rx_size); - rx_skb->protocol = eth_type_trans(rx_skb, net_dev); - netif_rx(rx_skb); - - /* some network statistics */ - if ((rx_status & BCAST) == MCAST) - net_dev->stats.multicast++; - net_dev->stats.rx_bytes += rx_size; - net_dev->stats.rx_packets++; - sis_priv->dirty_rx++; -refill_rx_ring: - sis_priv->rx_skbuff[entry] = skb; - sis_priv->rx_ring[entry].cmdsts = RX_BUF_SIZE; - sis_priv->rx_ring[entry].bufptr = - pci_map_single(sis_priv->pci_dev, skb->data, - RX_BUF_SIZE, PCI_DMA_FROMDEVICE); - } - sis_priv->cur_rx++; - entry = sis_priv->cur_rx % NUM_RX_DESC; - rx_status = sis_priv->rx_ring[entry].cmdsts; - } // while - - /* refill the Rx buffer, what if the rate of refilling is slower - * than consuming ?? */ - for (; sis_priv->cur_rx != sis_priv->dirty_rx; sis_priv->dirty_rx++) { - struct sk_buff *skb; - - entry = sis_priv->dirty_rx % NUM_RX_DESC; - - if (sis_priv->rx_skbuff[entry] == NULL) { - if ((skb = dev_alloc_skb(RX_BUF_SIZE)) == NULL) { - /* not enough memory for skbuff, this makes a - * "hole" on the buffer ring, it is not clear - * how the hardware will react to this kind - * of degenerated buffer */ - if (netif_msg_rx_err(sis_priv)) - printk(KERN_INFO "%s: Memory squeeze, " - "deferring packet.\n", - net_dev->name); - net_dev->stats.rx_dropped++; - break; - } - sis_priv->rx_skbuff[entry] = skb; - sis_priv->rx_ring[entry].cmdsts = RX_BUF_SIZE; - sis_priv->rx_ring[entry].bufptr = - pci_map_single(sis_priv->pci_dev, skb->data, - RX_BUF_SIZE, PCI_DMA_FROMDEVICE); - } - } - /* re-enable the potentially idle receive state matchine */ - outl(RxENA | inl(ioaddr + cr), ioaddr + cr ); - - return 0; -} - -/** - * sis900_finish_xmit - finish up transmission of packets - * @net_dev: the net device to be transmitted on - * - * Check for error condition and free socket buffer etc - * schedule for more transmission as needed - * Note: This function is called by interrupt handler, - * don't do "too much" work here - */ - -static void sis900_finish_xmit (struct net_device *net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - - for (; sis_priv->dirty_tx != sis_priv->cur_tx; sis_priv->dirty_tx++) { - struct sk_buff *skb; - unsigned int entry; - u32 tx_status; - - entry = sis_priv->dirty_tx % NUM_TX_DESC; - tx_status = sis_priv->tx_ring[entry].cmdsts; - - if (tx_status & OWN) { - /* The packet is not transmitted yet (owned by hardware) ! - * Note: the interrupt is generated only when Tx Machine - * is idle, so this is an almost impossible case */ - break; - } - - if (tx_status & (ABORT | UNDERRUN | OWCOLL)) { - /* packet unsuccessfully transmitted */ - if (netif_msg_tx_err(sis_priv)) - printk(KERN_DEBUG "%s: Transmit " - "error, Tx status %8.8x.\n", - net_dev->name, tx_status); - net_dev->stats.tx_errors++; - if (tx_status & UNDERRUN) - net_dev->stats.tx_fifo_errors++; - if (tx_status & ABORT) - net_dev->stats.tx_aborted_errors++; - if (tx_status & NOCARRIER) - net_dev->stats.tx_carrier_errors++; - if (tx_status & OWCOLL) - net_dev->stats.tx_window_errors++; - } else { - /* packet successfully transmitted */ - net_dev->stats.collisions += (tx_status & COLCNT) >> 16; - net_dev->stats.tx_bytes += tx_status & DSIZE; - net_dev->stats.tx_packets++; - } - /* Free the original skb. */ - skb = sis_priv->tx_skbuff[entry]; - pci_unmap_single(sis_priv->pci_dev, - sis_priv->tx_ring[entry].bufptr, skb->len, - PCI_DMA_TODEVICE); - dev_kfree_skb_irq(skb); - sis_priv->tx_skbuff[entry] = NULL; - sis_priv->tx_ring[entry].bufptr = 0; - sis_priv->tx_ring[entry].cmdsts = 0; - } - - if (sis_priv->tx_full && netif_queue_stopped(net_dev) && - sis_priv->cur_tx - sis_priv->dirty_tx < NUM_TX_DESC - 4) { - /* The ring is no longer full, clear tx_full and schedule - * more transmission by netif_wake_queue(net_dev) */ - sis_priv->tx_full = 0; - netif_wake_queue (net_dev); - } -} - -/** - * sis900_close - close sis900 device - * @net_dev: the net device to be closed - * - * Disable interrupts, stop the Tx and Rx Status Machine - * free Tx and RX socket buffer - */ - -static int sis900_close(struct net_device *net_dev) -{ - long ioaddr = net_dev->base_addr; - struct sis900_private *sis_priv = netdev_priv(net_dev); - struct sk_buff *skb; - int i; - - netif_stop_queue(net_dev); - - /* Disable interrupts by clearing the interrupt mask. */ - outl(0x0000, ioaddr + imr); - outl(0x0000, ioaddr + ier); - - /* Stop the chip's Tx and Rx Status Machine */ - outl(RxDIS | TxDIS | inl(ioaddr + cr), ioaddr + cr); - - del_timer(&sis_priv->timer); - - free_irq(net_dev->irq, net_dev); - - /* Free Tx and RX skbuff */ - for (i = 0; i < NUM_RX_DESC; i++) { - skb = sis_priv->rx_skbuff[i]; - if (skb) { - pci_unmap_single(sis_priv->pci_dev, - sis_priv->rx_ring[i].bufptr, - RX_BUF_SIZE, PCI_DMA_FROMDEVICE); - dev_kfree_skb(skb); - sis_priv->rx_skbuff[i] = NULL; - } - } - for (i = 0; i < NUM_TX_DESC; i++) { - skb = sis_priv->tx_skbuff[i]; - if (skb) { - pci_unmap_single(sis_priv->pci_dev, - sis_priv->tx_ring[i].bufptr, skb->len, - PCI_DMA_TODEVICE); - dev_kfree_skb(skb); - sis_priv->tx_skbuff[i] = NULL; - } - } - - /* Green! Put the chip in low-power mode. */ - - return 0; -} - -/** - * sis900_get_drvinfo - Return information about driver - * @net_dev: the net device to probe - * @info: container for info returned - * - * Process ethtool command such as "ehtool -i" to show information - */ - -static void sis900_get_drvinfo(struct net_device *net_dev, - struct ethtool_drvinfo *info) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - - strcpy (info->driver, SIS900_MODULE_NAME); - strcpy (info->version, SIS900_DRV_VERSION); - strcpy (info->bus_info, pci_name(sis_priv->pci_dev)); -} - -static u32 sis900_get_msglevel(struct net_device *net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - return sis_priv->msg_enable; -} - -static void sis900_set_msglevel(struct net_device *net_dev, u32 value) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - sis_priv->msg_enable = value; -} - -static u32 sis900_get_link(struct net_device *net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - return mii_link_ok(&sis_priv->mii_info); -} - -static int sis900_get_settings(struct net_device *net_dev, - struct ethtool_cmd *cmd) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - spin_lock_irq(&sis_priv->lock); - mii_ethtool_gset(&sis_priv->mii_info, cmd); - spin_unlock_irq(&sis_priv->lock); - return 0; -} - -static int sis900_set_settings(struct net_device *net_dev, - struct ethtool_cmd *cmd) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - int rt; - spin_lock_irq(&sis_priv->lock); - rt = mii_ethtool_sset(&sis_priv->mii_info, cmd); - spin_unlock_irq(&sis_priv->lock); - return rt; -} - -static int sis900_nway_reset(struct net_device *net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - return mii_nway_restart(&sis_priv->mii_info); -} - -/** - * sis900_set_wol - Set up Wake on Lan registers - * @net_dev: the net device to probe - * @wol: container for info passed to the driver - * - * Process ethtool command "wol" to setup wake on lan features. - * SiS900 supports sending WoL events if a correct packet is received, - * but there is no simple way to filter them to only a subset (broadcast, - * multicast, unicast or arp). - */ - -static int sis900_set_wol(struct net_device *net_dev, struct ethtool_wolinfo *wol) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - long pmctrl_addr = net_dev->base_addr + pmctrl; - u32 cfgpmcsr = 0, pmctrl_bits = 0; - - if (wol->wolopts == 0) { - pci_read_config_dword(sis_priv->pci_dev, CFGPMCSR, &cfgpmcsr); - cfgpmcsr &= ~PME_EN; - pci_write_config_dword(sis_priv->pci_dev, CFGPMCSR, cfgpmcsr); - outl(pmctrl_bits, pmctrl_addr); - if (netif_msg_wol(sis_priv)) - printk(KERN_DEBUG "%s: Wake on LAN disabled\n", net_dev->name); - return 0; - } - - if (wol->wolopts & (WAKE_MAGICSECURE | WAKE_UCAST | WAKE_MCAST - | WAKE_BCAST | WAKE_ARP)) - return -EINVAL; - - if (wol->wolopts & WAKE_MAGIC) - pmctrl_bits |= MAGICPKT; - if (wol->wolopts & WAKE_PHY) - pmctrl_bits |= LINKON; - - outl(pmctrl_bits, pmctrl_addr); - - pci_read_config_dword(sis_priv->pci_dev, CFGPMCSR, &cfgpmcsr); - cfgpmcsr |= PME_EN; - pci_write_config_dword(sis_priv->pci_dev, CFGPMCSR, cfgpmcsr); - if (netif_msg_wol(sis_priv)) - printk(KERN_DEBUG "%s: Wake on LAN enabled\n", net_dev->name); - - return 0; -} - -static void sis900_get_wol(struct net_device *net_dev, struct ethtool_wolinfo *wol) -{ - long pmctrl_addr = net_dev->base_addr + pmctrl; - u32 pmctrl_bits; - - pmctrl_bits = inl(pmctrl_addr); - if (pmctrl_bits & MAGICPKT) - wol->wolopts |= WAKE_MAGIC; - if (pmctrl_bits & LINKON) - wol->wolopts |= WAKE_PHY; - - wol->supported = (WAKE_PHY | WAKE_MAGIC); -} - -static const struct ethtool_ops sis900_ethtool_ops = { - .get_drvinfo = sis900_get_drvinfo, - .get_msglevel = sis900_get_msglevel, - .set_msglevel = sis900_set_msglevel, - .get_link = sis900_get_link, - .get_settings = sis900_get_settings, - .set_settings = sis900_set_settings, - .nway_reset = sis900_nway_reset, - .get_wol = sis900_get_wol, - .set_wol = sis900_set_wol -}; - -/** - * mii_ioctl - process MII i/o control command - * @net_dev: the net device to command for - * @rq: parameter for command - * @cmd: the i/o command - * - * Process MII command like read/write MII register - */ - -static int mii_ioctl(struct net_device *net_dev, struct ifreq *rq, int cmd) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - struct mii_ioctl_data *data = if_mii(rq); - - switch(cmd) { - case SIOCGMIIPHY: /* Get address of MII PHY in use. */ - data->phy_id = sis_priv->mii->phy_addr; - /* Fall Through */ - - case SIOCGMIIREG: /* Read MII PHY register. */ - data->val_out = mdio_read(net_dev, data->phy_id & 0x1f, data->reg_num & 0x1f); - return 0; - - case SIOCSMIIREG: /* Write MII PHY register. */ - mdio_write(net_dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in); - return 0; - default: - return -EOPNOTSUPP; - } -} - -/** - * sis900_set_config - Set media type by net_device.set_config - * @dev: the net device for media type change - * @map: ifmap passed by ifconfig - * - * Set media type to 10baseT, 100baseT or 0(for auto) by ifconfig - * we support only port changes. All other runtime configuration - * changes will be ignored - */ - -static int sis900_set_config(struct net_device *dev, struct ifmap *map) -{ - struct sis900_private *sis_priv = netdev_priv(dev); - struct mii_phy *mii_phy = sis_priv->mii; - - u16 status; - - if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) { - /* we switch on the ifmap->port field. I couldn't find anything - * like a definition or standard for the values of that field. - * I think the meaning of those values is device specific. But - * since I would like to change the media type via the ifconfig - * command I use the definition from linux/netdevice.h - * (which seems to be different from the ifport(pcmcia) definition) */ - switch(map->port){ - case IF_PORT_UNKNOWN: /* use auto here */ - dev->if_port = map->port; - /* we are going to change the media type, so the Link - * will be temporary down and we need to reflect that - * here. When the Link comes up again, it will be - * sensed by the sis_timer procedure, which also does - * all the rest for us */ - netif_carrier_off(dev); - - /* read current state */ - status = mdio_read(dev, mii_phy->phy_addr, MII_CONTROL); - - /* enable auto negotiation and reset the negotioation - * (I don't really know what the auto negatiotiation - * reset really means, but it sounds for me right to - * do one here) */ - mdio_write(dev, mii_phy->phy_addr, - MII_CONTROL, status | MII_CNTL_AUTO | MII_CNTL_RST_AUTO); - - break; - - case IF_PORT_10BASET: /* 10BaseT */ - dev->if_port = map->port; - - /* we are going to change the media type, so the Link - * will be temporary down and we need to reflect that - * here. When the Link comes up again, it will be - * sensed by the sis_timer procedure, which also does - * all the rest for us */ - netif_carrier_off(dev); - - /* set Speed to 10Mbps */ - /* read current state */ - status = mdio_read(dev, mii_phy->phy_addr, MII_CONTROL); - - /* disable auto negotiation and force 10MBit mode*/ - mdio_write(dev, mii_phy->phy_addr, - MII_CONTROL, status & ~(MII_CNTL_SPEED | - MII_CNTL_AUTO)); - break; - - case IF_PORT_100BASET: /* 100BaseT */ - case IF_PORT_100BASETX: /* 100BaseTx */ - dev->if_port = map->port; - - /* we are going to change the media type, so the Link - * will be temporary down and we need to reflect that - * here. When the Link comes up again, it will be - * sensed by the sis_timer procedure, which also does - * all the rest for us */ - netif_carrier_off(dev); - - /* set Speed to 100Mbps */ - /* disable auto negotiation and enable 100MBit Mode */ - status = mdio_read(dev, mii_phy->phy_addr, MII_CONTROL); - mdio_write(dev, mii_phy->phy_addr, - MII_CONTROL, (status & ~MII_CNTL_SPEED) | - MII_CNTL_SPEED); - - break; - - case IF_PORT_10BASE2: /* 10Base2 */ - case IF_PORT_AUI: /* AUI */ - case IF_PORT_100BASEFX: /* 100BaseFx */ - /* These Modes are not supported (are they?)*/ - return -EOPNOTSUPP; - break; - - default: - return -EINVAL; - } - } - return 0; -} - -/** - * sis900_mcast_bitnr - compute hashtable index - * @addr: multicast address - * @revision: revision id of chip - * - * SiS 900 uses the most sigificant 7 bits to index a 128 bits multicast - * hash table, which makes this function a little bit different from other drivers - * SiS 900 B0 & 635 M/B uses the most significat 8 bits to index 256 bits - * multicast hash table. - */ - -static inline u16 sis900_mcast_bitnr(u8 *addr, u8 revision) -{ - - u32 crc = ether_crc(6, addr); - - /* leave 8 or 7 most siginifant bits */ - if ((revision >= SIS635A_900_REV) || (revision == SIS900B_900_REV)) - return (int)(crc >> 24); - else - return (int)(crc >> 25); -} - -/** - * set_rx_mode - Set SiS900 receive mode - * @net_dev: the net device to be set - * - * Set SiS900 receive mode for promiscuous, multicast, or broadcast mode. - * And set the appropriate multicast filter. - * Multicast hash table changes from 128 to 256 bits for 635M/B & 900B0. - */ - -static void set_rx_mode(struct net_device *net_dev) -{ - long ioaddr = net_dev->base_addr; - struct sis900_private *sis_priv = netdev_priv(net_dev); - u16 mc_filter[16] = {0}; /* 256/128 bits multicast hash table */ - int i, table_entries; - u32 rx_mode; - - /* 635 Hash Table entries = 256(2^16) */ - if((sis_priv->chipset_rev >= SIS635A_900_REV) || - (sis_priv->chipset_rev == SIS900B_900_REV)) - table_entries = 16; - else - table_entries = 8; - - if (net_dev->flags & IFF_PROMISC) { - /* Accept any kinds of packets */ - rx_mode = RFPromiscuous; - for (i = 0; i < table_entries; i++) - mc_filter[i] = 0xffff; - } else if ((netdev_mc_count(net_dev) > multicast_filter_limit) || - (net_dev->flags & IFF_ALLMULTI)) { - /* too many multicast addresses or accept all multicast packet */ - rx_mode = RFAAB | RFAAM; - for (i = 0; i < table_entries; i++) - mc_filter[i] = 0xffff; - } else { - /* Accept Broadcast packet, destination address matchs our - * MAC address, use Receive Filter to reject unwanted MCAST - * packets */ - struct netdev_hw_addr *ha; - rx_mode = RFAAB; - - netdev_for_each_mc_addr(ha, net_dev) { - unsigned int bit_nr; - - bit_nr = sis900_mcast_bitnr(ha->addr, - sis_priv->chipset_rev); - mc_filter[bit_nr >> 4] |= (1 << (bit_nr & 0xf)); - } - } - - /* update Multicast Hash Table in Receive Filter */ - for (i = 0; i < table_entries; i++) { - /* why plus 0x04 ??, That makes the correct value for hash table. */ - outl((u32)(0x00000004+i) << RFADDR_shift, ioaddr + rfcr); - outl(mc_filter[i], ioaddr + rfdr); - } - - outl(RFEN | rx_mode, ioaddr + rfcr); - - /* sis900 is capable of looping back packets at MAC level for - * debugging purpose */ - if (net_dev->flags & IFF_LOOPBACK) { - u32 cr_saved; - /* We must disable Tx/Rx before setting loopback mode */ - cr_saved = inl(ioaddr + cr); - outl(cr_saved | TxDIS | RxDIS, ioaddr + cr); - /* enable loopback */ - outl(inl(ioaddr + txcfg) | TxMLB, ioaddr + txcfg); - outl(inl(ioaddr + rxcfg) | RxATX, ioaddr + rxcfg); - /* restore cr */ - outl(cr_saved, ioaddr + cr); - } -} - -/** - * sis900_reset - Reset sis900 MAC - * @net_dev: the net device to reset - * - * reset sis900 MAC and wait until finished - * reset through command register - * change backoff algorithm for 900B0 & 635 M/B - */ - -static void sis900_reset(struct net_device *net_dev) -{ - struct sis900_private *sis_priv = netdev_priv(net_dev); - long ioaddr = net_dev->base_addr; - int i = 0; - u32 status = TxRCMP | RxRCMP; - - outl(0, ioaddr + ier); - outl(0, ioaddr + imr); - outl(0, ioaddr + rfcr); - - outl(RxRESET | TxRESET | RESET | inl(ioaddr + cr), ioaddr + cr); - - /* Check that the chip has finished the reset. */ - while (status && (i++ < 1000)) { - status ^= (inl(isr + ioaddr) & status); - } - - if( (sis_priv->chipset_rev >= SIS635A_900_REV) || - (sis_priv->chipset_rev == SIS900B_900_REV) ) - outl(PESEL | RND_CNT, ioaddr + cfg); - else - outl(PESEL, ioaddr + cfg); -} - -/** - * sis900_remove - Remove sis900 device - * @pci_dev: the pci device to be removed - * - * remove and release SiS900 net device - */ - -static void __devexit sis900_remove(struct pci_dev *pci_dev) -{ - struct net_device *net_dev = pci_get_drvdata(pci_dev); - struct sis900_private *sis_priv = netdev_priv(net_dev); - struct mii_phy *phy = NULL; - - while (sis_priv->first_mii) { - phy = sis_priv->first_mii; - sis_priv->first_mii = phy->next; - kfree(phy); - } - - pci_free_consistent(pci_dev, RX_TOTAL_SIZE, sis_priv->rx_ring, - sis_priv->rx_ring_dma); - pci_free_consistent(pci_dev, TX_TOTAL_SIZE, sis_priv->tx_ring, - sis_priv->tx_ring_dma); - unregister_netdev(net_dev); - free_netdev(net_dev); - pci_release_regions(pci_dev); - pci_set_drvdata(pci_dev, NULL); -} - -#ifdef CONFIG_PM - -static int sis900_suspend(struct pci_dev *pci_dev, pm_message_t state) -{ - struct net_device *net_dev = pci_get_drvdata(pci_dev); - long ioaddr = net_dev->base_addr; - - if(!netif_running(net_dev)) - return 0; - - netif_stop_queue(net_dev); - netif_device_detach(net_dev); - - /* Stop the chip's Tx and Rx Status Machine */ - outl(RxDIS | TxDIS | inl(ioaddr + cr), ioaddr + cr); - - pci_set_power_state(pci_dev, PCI_D3hot); - pci_save_state(pci_dev); - - return 0; -} - -static int sis900_resume(struct pci_dev *pci_dev) -{ - struct net_device *net_dev = pci_get_drvdata(pci_dev); - struct sis900_private *sis_priv = netdev_priv(net_dev); - long ioaddr = net_dev->base_addr; - - if(!netif_running(net_dev)) - return 0; - pci_restore_state(pci_dev); - pci_set_power_state(pci_dev, PCI_D0); - - sis900_init_rxfilter(net_dev); - - sis900_init_tx_ring(net_dev); - sis900_init_rx_ring(net_dev); - - set_rx_mode(net_dev); - - netif_device_attach(net_dev); - netif_start_queue(net_dev); - - /* Workaround for EDB */ - sis900_set_mode(ioaddr, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED); - - /* Enable all known interrupts by setting the interrupt mask. */ - outl((RxSOVR|RxORN|RxERR|RxOK|TxURN|TxERR|TxIDLE), ioaddr + imr); - outl(RxENA | inl(ioaddr + cr), ioaddr + cr); - outl(IE, ioaddr + ier); - - sis900_check_mode(net_dev, sis_priv->mii); - - return 0; -} -#endif /* CONFIG_PM */ - -static struct pci_driver sis900_pci_driver = { - .name = SIS900_MODULE_NAME, - .id_table = sis900_pci_tbl, - .probe = sis900_probe, - .remove = __devexit_p(sis900_remove), -#ifdef CONFIG_PM - .suspend = sis900_suspend, - .resume = sis900_resume, -#endif /* CONFIG_PM */ -}; - -static int __init sis900_init_module(void) -{ -/* when a module, this is printed whether or not devices are found in probe */ -#ifdef MODULE - printk(version); -#endif - - return pci_register_driver(&sis900_pci_driver); -} - -static void __exit sis900_cleanup_module(void) -{ - pci_unregister_driver(&sis900_pci_driver); -} - -module_init(sis900_init_module); -module_exit(sis900_cleanup_module); - |