/* 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. */ #define DRV_NAME "uli526x" #define DRV_VERSION "0.9.3" #define DRV_RELDATE "2005-7-29" #include <linux/module.h> #include <linux/kernel.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/init.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/skbuff.h> #include <linux/delay.h> #include <linux/spinlock.h> #include <linux/dma-mapping.h> #include <asm/processor.h> #include <asm/bitops.h> #include <asm/io.h> #include <asm/dma.h> #include <asm/uaccess.h> /* Board/System/Debug information/definition ---------------- */ #define PCI_ULI5261_ID 0x526110B9 /* ULi M5261 ID*/ #define PCI_ULI5263_ID 0x526310B9 /* ULi M5263 ID*/ #define ULI526X_IO_SIZE 0x100 #define TX_DESC_CNT 0x20 /* Allocated Tx descriptors */ #define RX_DESC_CNT 0x30 /* Allocated Rx descriptors */ #define TX_FREE_DESC_CNT (TX_DESC_CNT - 2) /* Max TX packet count */ #define TX_WAKE_DESC_CNT (TX_DESC_CNT - 3) /* TX wakeup count */ #define DESC_ALL_CNT (TX_DESC_CNT + RX_DESC_CNT) #define TX_BUF_ALLOC 0x600 #define RX_ALLOC_SIZE 0x620 #define ULI526X_RESET 1 #define CR0_DEFAULT 0 #define CR6_DEFAULT 0x22200000 #define CR7_DEFAULT 0x180c1 #define CR15_DEFAULT 0x06 /* TxJabber RxWatchdog */ #define TDES0_ERR_MASK 0x4302 /* TXJT, LC, EC, FUE */ #define MAX_PACKET_SIZE 1514 #define ULI5261_MAX_MULTICAST 14 #define RX_COPY_SIZE 100 #define MAX_CHECK_PACKET 0x8000 #define ULI526X_10MHF 0 #define ULI526X_100MHF 1 #define ULI526X_10MFD 4 #define ULI526X_100MFD 5 #define ULI526X_AUTO 8 #define ULI526X_TXTH_72 0x400000 /* TX TH 72 byte */ #define ULI526X_TXTH_96 0x404000 /* TX TH 96 byte */ #define ULI526X_TXTH_128 0x0000 /* TX TH 128 byte */ #define ULI526X_TXTH_256 0x4000 /* TX TH 256 byte */ #define ULI526X_TXTH_512 0x8000 /* TX TH 512 byte */ #define ULI526X_TXTH_1K 0xC000 /* TX TH 1K byte */ #define ULI526X_TIMER_WUT (jiffies + HZ * 1)/* timer wakeup time : 1 second */ #define ULI526X_TX_TIMEOUT ((16*HZ)/2) /* tx packet time-out time 8 s" */ #define ULI526X_TX_KICK (4*HZ/2) /* tx packet Kick-out time 2 s" */ #define ULI526X_DBUG(dbug_now, msg, value) if (uli526x_debug || (dbug_now)) printk(KERN_ERR DRV_NAME ": %s %lx\n", (msg), (long) (value)) #define SHOW_MEDIA_TYPE(mode) printk(KERN_ERR DRV_NAME ": Change Speed to %sMhz %s duplex\n",mode & 1 ?"100":"10", mode & 4 ? "full":"half"); /* CR9 definition: SROM/MII */ #define CR9_SROM_READ 0x4800 #define CR9_SRCS 0x1 #define CR9_SRCLK 0x2 #define CR9_CRDOUT 0x8 #define SROM_DATA_0 0x0 #define SROM_DATA_1 0x4 #define PHY_DATA_1 0x20000 #define PHY_DATA_0 0x00000 #define MDCLKH 0x10000 #define PHY_POWER_DOWN 0x800 #define SROM_V41_CODE 0x14 #define SROM_CLK_WRITE(data, ioaddr) \ outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr); \ udelay(5); \ outl(data|CR9_SROM_READ|CR9_SRCS|CR9_SRCLK,ioaddr); \ udelay(5); \ outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr); \ udelay(5); /* Structure/enum declaration ------------------------------- */ struct tx_desc { u32 tdes0, tdes1, tdes2, tdes3; /* Data for the card */ char *tx_buf_ptr; /* Data for us */ struct tx_desc *next_tx_desc; } __attribute__(( aligned(32) )); struct rx_desc { u32 rdes0, rdes1, rdes2, rdes3; /* Data for the card */ struct sk_buff *rx_skb_ptr; /* Data for us */ struct rx_desc *next_rx_desc; } __attribute__(( aligned(32) )); struct uli526x_board_info { u32 chip_id; /* Chip vendor/Device ID */ struct net_device *next_dev; /* next device */ struct pci_dev *pdev; /* PCI device */ spinlock_t lock; long ioaddr; /* I/O base address */ u32 cr0_data; u32 cr5_data; u32 cr6_data; u32 cr7_data; u32 cr15_data; /* pointer for memory physical address */ dma_addr_t buf_pool_dma_ptr; /* Tx buffer pool memory */ dma_addr_t buf_pool_dma_start; /* Tx buffer pool align dword */ dma_addr_t desc_pool_dma_ptr; /* descriptor pool memory */ dma_addr_t first_tx_desc_dma; dma_addr_t first_rx_desc_dma; /* descriptor pointer */ unsigned char *buf_pool_ptr; /* Tx buffer pool memory */ unsigned char *buf_pool_start; /* Tx buffer pool align dword */ unsigned char *desc_pool_ptr; /* descriptor pool memory */ struct tx_desc *first_tx_desc; struct tx_desc *tx_insert_ptr; struct tx_desc *tx_remove_ptr; struct rx_desc *first_rx_desc; struct rx_desc *rx_insert_ptr; struct rx_desc *rx_ready_ptr; /* packet come pointer */ unsigned long tx_packet_cnt; /* transmitted packet count */ unsigned long rx_avail_cnt; /* available rx descriptor count */ unsigned long interval_rx_cnt; /* rx packet count a callback time */ u16 dbug_cnt; u16 NIC_capability; /* NIC media capability */ u16 PHY_reg4; /* Saved Phyxcer register 4 value */ u8 media_mode; /* user specify media mode */ u8 op_mode; /* real work media mode */ u8 phy_addr; u8 link_failed; /* Ever link failed */ u8 wait_reset; /* Hardware failed, need to reset */ struct timer_list timer; /* System defined statistic counter */ struct net_device_stats stats; /* Driver defined statistic counter */ unsigned long tx_fifo_underrun; unsigned long tx_loss_carrier; unsigned long tx_no_carrier; unsigned long tx_late_collision; unsigned long tx_excessive_collision; unsigned long tx_jabber_timeout; unsigned long reset_count; unsigned long reset_cr8; unsigned long reset_fatal; unsigned long reset_TXtimeout; /* NIC SROM data */ unsigned char srom[128]; u8 init; }; enum uli526x_offsets { DCR0 = 0x00, DCR1 = 0x08, DCR2 = 0x10, DCR3 = 0x18, DCR4 = 0x20, DCR5 = 0x28, DCR6 = 0x30, DCR7 = 0x38, DCR8 = 0x40, DCR9 = 0x48, DCR10 = 0x50, DCR11 = 0x58, DCR12 = 0x60, DCR13 = 0x68, DCR14 = 0x70, DCR15 = 0x78 }; enum uli526x_CR6_bits { CR6_RXSC = 0x2, CR6_PBF = 0x8, CR6_PM = 0x40, CR6_PAM = 0x80, CR6_FDM = 0x200, CR6_TXSC = 0x2000, CR6_STI = 0x100000, CR6_SFT = 0x200000, CR6_RXA = 0x40000000, CR6_NO_PURGE = 0x20000000 }; /* Global variable declaration ----------------------------- */ static int __devinitdata printed_version; static char version[] __devinitdata = KERN_INFO DRV_NAME ": ULi M5261/M5263 net driver, version " DRV_VERSION " (" DRV_RELDATE ")\n"; static int uli526x_debug; static unsigned char uli526x_media_mode = ULI526X_AUTO; static u32 uli526x_cr6_user_set; /* For module input parameter */ static int debug; static u32 cr6set; static unsigned char mode = 8; /* function declaration ------------------------------------- */ static int uli526x_open(struct net_device *); static int uli526x_start_xmit(struct sk_buff *, struct net_device *); static int uli526x_stop(struct net_device *); static struct net_device_stats * uli526x_get_stats(struct net_device *); static void uli526x_set_filter_mode(struct net_device *); static struct ethtool_ops netdev_ethtool_ops; static u16 read_srom_word(long, int); static irqreturn_t uli526x_interrupt(int, void *, struct pt_regs *); static void uli526x_descriptor_init(struct uli526x_board_info *, unsigned long); static void allocate_rx_buffer(struct uli526x_board_info *); static void update_cr6(u32, unsigned long); static void send_filter_frame(struct net_device *, int); static u16 phy_read(unsigned long, u8, u8, u32); static u16 phy_readby_cr10(unsigned long, u8, u8); static void phy_write(unsigned long, u8, u8, u16, u32); static void phy_writeby_cr10(unsigned long, u8, u8, u16); static void phy_write_1bit(unsigned long, u32, u32); static u16 phy_read_1bit(unsigned long, u32); static u8 uli526x_sense_speed(struct uli526x_board_info *); static void uli526x_process_mode(struct uli526x_board_info *); static void uli526x_timer(unsigned long); static void uli526x_rx_packet(struct net_device *, struct uli526x_board_info *); static void uli526x_free_tx_pkt(struct net_device *, struct uli526x_board_info *); static void uli526x_reuse_skb(struct uli526x_board_info *, struct sk_buff *); static void uli526x_dynamic_reset(struct net_device *); static void uli526x_free_rxbuffer(struct uli526x_board_info *); static void uli526x_init(struct net_device *); static void uli526x_set_phyxcer(struct uli526x_board_info *); /* ULI526X network board routine ---------------------------- */ /* * Search ULI526X board, allocate space and register it */ static int __devinit uli526x_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) { struct uli526x_board_info *db; /* board information structure */ struct net_device *dev; int i, err; ULI526X_DBUG(0, "uli526x_init_one()", 0); if (!printed_version++) printk(version); /* Init network device */ dev = alloc_etherdev(sizeof(*db)); if (dev == NULL) return -ENOMEM; SET_MODULE_OWNER(dev); SET_NETDEV_DEV(dev, &pdev->dev); if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { printk(KERN_WARNING DRV_NAME ": 32-bit PCI DMA not available.\n"); err = -ENODEV; goto err_out_free; } /* Enable Master/IO access, Disable memory access */ err = pci_enable_device(pdev); if (err) goto err_out_free; if (!pci_resource_start(pdev, 0)) { printk(KERN_ERR DRV_NAME ": I/O base is zero\n"); err = -ENODEV; goto err_out_disable; } if (pci_resource_len(pdev, 0) < (ULI526X_IO_SIZE) ) { printk(KERN_ERR DRV_NAME ": Allocated I/O size too small\n"); err = -ENODEV; goto err_out_disable; } if (pci_request_regions(pdev, DRV_NAME)) { printk(KERN_ERR DRV_NAME ": Failed to request PCI regions\n"); err = -ENODEV; goto err_out_disable; } /* Init system & device */ db = netdev_priv(dev); /* Allocate Tx/Rx descriptor memory */ db->desc_pool_ptr = pci_alloc_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, &db->desc_pool_dma_ptr); if(db->desc_pool_ptr == NULL) { err = -ENOMEM; goto err_out_nomem; } db->buf_pool_ptr = pci_alloc_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4, &db->buf_pool_dma_ptr); if(db->buf_pool_ptr == NULL) { err = -ENOMEM; goto err_out_nomem; } db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr; db->first_tx_desc_dma = db->desc_pool_dma_ptr; db->buf_pool_start = db->buf_pool_ptr; db->buf_pool_dma_start = db->buf_pool_dma_ptr; db->chip_id = ent->driver_data; db->ioaddr = pci_resource_start(pdev, 0); db->pdev = pdev; db->init = 1; dev->base_addr = db->ioaddr; dev->irq = pdev->irq; pci_set_drvdata(pdev, dev); /* Register some necessary functions */ dev->open = &uli526x_open; dev->hard_start_xmit = &uli526x_start_xmit; dev->stop = &uli526x_stop; dev->get_stats = &uli526x_get_stats; dev->set_multicast_list = &uli526x_set_filter_mode; dev->ethtool_ops = &netdev_ethtool_ops; spin_lock_init(&db->lock); /* read 64 word srom data */ for (i = 0; i < 64; i++) ((u16 *) db->srom)[i] = cpu_to_le16(read_srom_word(db->ioaddr, i)); /* Set Node address */ if(((u16 *) db->srom)[0] == 0xffff || ((u16 *) db->srom)[0] == 0) /* SROM absent, so read MAC address from ID Table */ { outl(0x10000, db->ioaddr + DCR0); //Diagnosis mode outl(0x1c0, db->ioaddr + DCR13); //Reset dianostic pointer port outl(0, db->ioaddr + DCR14); //Clear reset port outl(0x10, db->ioaddr + DCR14); //Reset ID Table pointer outl(0, db->ioaddr + DCR14); //Clear reset port outl(0, db->ioaddr + DCR13); //Clear CR13 outl(0x1b0, db->ioaddr + DCR13); //Select ID Table access port //Read MAC address from CR14 for (i = 0; i < 6; i++) dev->dev_addr[i] = inl(db->ioaddr + DCR14); //Read end outl(0, db->ioaddr + DCR13); //Clear CR13 outl(0, db->ioaddr + DCR0); //Clear CR0 udelay(10); } else /*Exist SROM*/ { for (i = 0; i < 6; i++) dev->dev_addr[i] = db->srom[20 + i]; } err = register_netdev (dev); if (err) goto err_out_res; printk(KERN_INFO "%s: ULi M%04lx at pci%s,",dev->name,ent->driver_data >> 16,pci_name(pdev)); for (i = 0; i < 6; i++) printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]); printk(", irq %d.\n", dev->irq); pci_set_master(pdev); return 0; err_out_res: pci_release_regions(pdev); err_out_nomem: if(db->desc_pool_ptr) pci_free_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, db->desc_pool_ptr, db->desc_pool_dma_ptr); if(db->buf_pool_ptr != NULL) pci_free_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4, db->buf_pool_ptr, db->buf_pool_dma_ptr); err_out_disable: pci_disable_device(pdev); err_out_free: pci_set_drvdata(pdev, NULL); free_netdev(dev); return err; } static void __devexit uli526x_remove_one (struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata(pdev); struct uli526x_board_info *db = netdev_priv(dev); ULI526X_DBUG(0, "uli526x_remove_one()", 0); pci_free_consistent(db->pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, db->desc_pool_ptr, db->desc_pool_dma_ptr); pci_free_consistent(db->pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4, db->buf_pool_ptr, db->buf_pool_dma_ptr); unregister_netdev(dev); pci_release_regions(pdev); free_netdev(dev); /* free board information */ pci_set_drvdata(pdev, NULL); pci_disable_device(pdev); ULI526X_DBUG(0, "uli526x_remove_one() exit", 0); } /* * Open the interface. * The interface is opened whenever "ifconfig" activates it. */ static int uli526x_open(struct net_device *dev) { int ret; struct uli526x_board_info *db = netdev_priv(dev); ULI526X_DBUG(0, "uli526x_open", 0); ret = request_irq(dev->irq, &uli526x_interrupt, SA_SHIRQ, dev->name, dev); if (ret) return ret; /* system variable init */ db->cr6_data = CR6_DEFAULT | uli526x_cr6_user_set; db->tx_packet_cnt = 0; db->rx_avail_cnt = 0; db->link_failed = 1; netif_carrier_off(dev); db->wait_reset = 0; db->NIC_capability = 0xf; /* All capability*/ db->PHY_reg4 = 0x1e0; /* CR6 operation mode decision */ db->cr6_data |= ULI526X_TXTH_256; db->cr0_data = CR0_DEFAULT; /* Initialize ULI526X board */ uli526x_init(dev); /* Active System Interface */ netif_wake_queue(dev); /* set and active a timer process */ init_timer(&db->timer); db->timer.expires = ULI526X_TIMER_WUT + HZ * 2; db->timer.data = (unsigned long)dev; db->timer.function = &uli526x_timer; add_timer(&db->timer); return 0; } /* Initialize ULI526X board * Reset ULI526X board * Initialize TX/Rx descriptor chain structure * Send the set-up frame * Enable Tx/Rx machine */ static void uli526x_init(struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); unsigned long ioaddr = db->ioaddr; u8 phy_tmp; u16 phy_value; u16 phy_reg_reset; ULI526X_DBUG(0, "uli526x_init()", 0); /* Reset M526x MAC controller */ outl(ULI526X_RESET, ioaddr + DCR0); /* RESET MAC */ udelay(100); outl(db->cr0_data, ioaddr + DCR0); udelay(5); /* Phy addr : In some boards,M5261/M5263 phy address != 1 */ db->phy_addr = 1; for(phy_tmp=0;phy_tmp<32;phy_tmp++) { phy_value=phy_read(db->ioaddr,phy_tmp,3,db->chip_id);//peer add if(phy_value != 0xffff&&phy_value!=0) { db->phy_addr = phy_tmp; break; } } if(phy_tmp == 32) printk(KERN_WARNING "Can not find the phy address!!!"); /* Parser SROM and media mode */ db->media_mode = uli526x_media_mode; /* Phyxcer capability setting */ phy_reg_reset = phy_read(db->ioaddr, db->phy_addr, 0, db->chip_id); phy_reg_reset = (phy_reg_reset | 0x8000); phy_write(db->ioaddr, db->phy_addr, 0, phy_reg_reset, db->chip_id); udelay(500); /* Process Phyxcer Media Mode */ uli526x_set_phyxcer(db); /* Media Mode Process */ if ( !(db->media_mode & ULI526X_AUTO) ) db->op_mode = db->media_mode; /* Force Mode */ /* Initialize Transmit/Receive decriptor and CR3/4 */ uli526x_descriptor_init(db, ioaddr); /* Init CR6 to program M526X operation */ update_cr6(db->cr6_data, ioaddr); /* Send setup frame */ send_filter_frame(dev, dev->mc_count); /* M5261/M5263 */ /* Init CR7, interrupt active bit */ db->cr7_data = CR7_DEFAULT; outl(db->cr7_data, ioaddr + DCR7); /* Init CR15, Tx jabber and Rx watchdog timer */ outl(db->cr15_data, ioaddr + DCR15); /* Enable ULI526X Tx/Rx function */ db->cr6_data |= CR6_RXSC | CR6_TXSC; update_cr6(db->cr6_data, ioaddr); } /* * Hardware start transmission. * Send a packet to media from the upper layer. */ static int uli526x_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); struct tx_desc *txptr; unsigned long flags; ULI526X_DBUG(0, "uli526x_start_xmit", 0); /* Resource flag check */ netif_stop_queue(dev); /* Too large packet check */ if (skb->len > MAX_PACKET_SIZE) { printk(KERN_ERR DRV_NAME ": big packet = %d\n", (u16)skb->len); dev_kfree_skb(skb); return 0; } spin_lock_irqsave(&db->lock, flags); /* No Tx resource check, it never happen nromally */ if (db->tx_packet_cnt >= TX_FREE_DESC_CNT) { spin_unlock_irqrestore(&db->lock, flags); printk(KERN_ERR DRV_NAME ": No Tx resource %ld\n", db->tx_packet_cnt); return 1; } /* Disable NIC interrupt */ outl(0, dev->base_addr + DCR7); /* transmit this packet */ txptr = db->tx_insert_ptr; memcpy(txptr->tx_buf_ptr, skb->data, skb->len); txptr->tdes1 = cpu_to_le32(0xe1000000 | skb->len); /* Point to next transmit free descriptor */ db->tx_insert_ptr = txptr->next_tx_desc; /* Transmit Packet Process */ if ( (db->tx_packet_cnt < TX_DESC_CNT) ) { txptr->tdes0 = cpu_to_le32(0x80000000); /* Set owner bit */ db->tx_packet_cnt++; /* Ready to send */ outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */ dev->trans_start = jiffies; /* saved time stamp */ } /* Tx resource check */ if ( db->tx_packet_cnt < TX_FREE_DESC_CNT ) netif_wake_queue(dev); /* Restore CR7 to enable interrupt */ spin_unlock_irqrestore(&db->lock, flags); outl(db->cr7_data, dev->base_addr + DCR7); /* free this SKB */ dev_kfree_skb(skb); return 0; } /* * Stop the interface. * The interface is stopped when it is brought. */ static int uli526x_stop(struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); unsigned long ioaddr = dev->base_addr; ULI526X_DBUG(0, "uli526x_stop", 0); /* disable system */ netif_stop_queue(dev); /* deleted timer */ del_timer_sync(&db->timer); /* Reset & stop ULI526X board */ outl(ULI526X_RESET, ioaddr + DCR0); udelay(5); phy_write(db->ioaddr, db->phy_addr, 0, 0x8000, db->chip_id); /* free interrupt */ free_irq(dev->irq, dev); /* free allocated rx buffer */ uli526x_free_rxbuffer(db); #if 0 /* show statistic counter */ printk(DRV_NAME ": FU:%lx EC:%lx LC:%lx NC:%lx LOC:%lx TXJT:%lx RESET:%lx RCR8:%lx FAL:%lx TT:%lx\n", db->tx_fifo_underrun, db->tx_excessive_collision, db->tx_late_collision, db->tx_no_carrier, db->tx_loss_carrier, db->tx_jabber_timeout, db->reset_count, db->reset_cr8, db->reset_fatal, db->reset_TXtimeout); #endif return 0; } /* * M5261/M5263 insterrupt handler * receive the packet to upper layer, free the transmitted packet */ static irqreturn_t uli526x_interrupt(int irq, void *dev_id, struct pt_regs *regs) { struct net_device *dev = dev_id; struct uli526x_board_info *db = netdev_priv(dev); unsigned long ioaddr = dev->base_addr; unsigned long flags; if (!dev) { ULI526X_DBUG(1, "uli526x_interrupt() without DEVICE arg", 0); return IRQ_NONE; } spin_lock_irqsave(&db->lock, flags); outl(0, ioaddr + DCR7); /* Got ULI526X status */ db->cr5_data = inl(ioaddr + DCR5); outl(db->cr5_data, ioaddr + DCR5); if ( !(db->cr5_data & 0x180c1) ) { spin_unlock_irqrestore(&db->lock, flags); outl(db->cr7_data, ioaddr + DCR7); return IRQ_HANDLED; } /* Check system status */ if (db->cr5_data & 0x2000) { /* system bus error happen */ ULI526X_DBUG(1, "System bus error happen. CR5=", db->cr5_data); db->reset_fatal++; db->wait_reset = 1; /* Need to RESET */ spin_unlock_irqrestore(&db->lock, flags); return IRQ_HANDLED; } /* Received the coming packet */ if ( (db->cr5_data & 0x40) && db->rx_avail_cnt ) uli526x_rx_packet(dev, db); /* reallocate rx descriptor buffer */ if (db->rx_avail_cnt<RX_DESC_CNT) allocate_rx_buffer(db); /* Free the transmitted descriptor */ if ( db->cr5_data & 0x01) uli526x_free_tx_pkt(dev, db); /* Restore CR7 to enable interrupt mask */ outl(db->cr7_data, ioaddr + DCR7); spin_unlock_irqrestore(&db->lock, flags); return IRQ_HANDLED; } /* * Free TX resource after TX complete */ static void uli526x_free_tx_pkt(struct net_device *dev, struct uli526x_board_info * db) { struct tx_desc *txptr; u32 tdes0; txptr = db->tx_remove_ptr; while(db->tx_packet_cnt) { tdes0 = le32_to_cpu(txptr->tdes0); /* printk(DRV_NAME ": tdes0=%x\n", tdes0); */ if (tdes0 & 0x80000000) break; /* A packet sent completed */ db->tx_packet_cnt--; db->stats.tx_packets++; /* Transmit statistic counter */ if ( tdes0 != 0x7fffffff ) { /* printk(DRV_NAME ": tdes0=%x\n", tdes0); */ db->stats.collisions += (tdes0 >> 3) & 0xf; db->stats.tx_bytes += le32_to_cpu(txptr->tdes1) & 0x7ff; if (tdes0 & TDES0_ERR_MASK) { db->stats.tx_errors++; if (tdes0 & 0x0002) { /* UnderRun */ db->tx_fifo_underrun++; if ( !(db->cr6_data & CR6_SFT) ) { db->cr6_data = db->cr6_data | CR6_SFT; update_cr6(db->cr6_data, db->ioaddr); } } if (tdes0 & 0x0100) db->tx_excessive_collision++; if (tdes0 & 0x0200) db->tx_late_collision++; if (tdes0 & 0x0400) db->tx_no_carrier++; if (tdes0 & 0x0800) db->tx_loss_carrier++; if (tdes0 & 0x4000) db->tx_jabber_timeout++; } } txptr = txptr->next_tx_desc; }/* End of while */ /* Update TX remove pointer to next */ db->tx_remove_ptr = txptr; /* Resource available check */ if ( db->tx_packet_cnt < TX_WAKE_DESC_CNT ) netif_wake_queue(dev); /* Active upper layer, send again */ } /* * Receive the come packet and pass to upper layer */ static void uli526x_rx_packet(struct net_device *dev, struct uli526x_board_info * db) { struct rx_desc *rxptr; struct sk_buff *skb; int rxlen; u32 rdes0; rxptr = db->rx_ready_ptr; while(db->rx_avail_cnt) { rdes0 = le32_to_cpu(rxptr->rdes0); if (rdes0 & 0x80000000) /* packet owner check */ { break; } db->rx_avail_cnt--; db->interval_rx_cnt++; pci_unmap_single(db->pdev, le32_to_cpu(rxptr->rdes2), RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE); if ( (rdes0 & 0x300) != 0x300) { /* A packet without First/Last flag */ /* reuse this SKB */ ULI526X_DBUG(0, "Reuse SK buffer, rdes0", rdes0); uli526x_reuse_skb(db, rxptr->rx_skb_ptr); } else { /* A packet with First/Last flag */ rxlen = ( (rdes0 >> 16) & 0x3fff) - 4; /* error summary bit check */ if (rdes0 & 0x8000) { /* This is a error packet */ //printk(DRV_NAME ": rdes0: %lx\n", rdes0); db->stats.rx_errors++; if (rdes0 & 1) db->stats.rx_fifo_errors++; if (rdes0 & 2) db->stats.rx_crc_errors++; if (rdes0 & 0x80) db->stats.rx_length_errors++; } if ( !(rdes0 & 0x8000) || ((db->cr6_data & CR6_PM) && (rxlen>6)) ) { skb = rxptr->rx_skb_ptr; /* Good packet, send to upper layer */ /* Shorst packet used new SKB */ if ( (rxlen < RX_COPY_SIZE) && ( (skb = dev_alloc_skb(rxlen + 2) ) != NULL) ) { /* size less than COPY_SIZE, allocate a rxlen SKB */ skb->dev = dev; skb_reserve(skb, 2); /* 16byte align */ memcpy(skb_put(skb, rxlen), rxptr->rx_skb_ptr->tail, rxlen); uli526x_reuse_skb(db, rxptr->rx_skb_ptr); } else { skb->dev = dev; skb_put(skb, rxlen); } skb->protocol = eth_type_trans(skb, dev); netif_rx(skb); dev->last_rx = jiffies; db->stats.rx_packets++; db->stats.rx_bytes += rxlen; } else { /* Reuse SKB buffer when the packet is error */ ULI526X_DBUG(0, "Reuse SK buffer, rdes0", rdes0); uli526x_reuse_skb(db, rxptr->rx_skb_ptr); } } rxptr = rxptr->next_rx_desc; } db->rx_ready_ptr = rxptr; } /* * Get statistics from driver. */ static struct net_device_stats * uli526x_get_stats(struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); ULI526X_DBUG(0, "uli526x_get_stats", 0); return &db->stats; } /* * Set ULI526X multicast address */ static void uli526x_set_filter_mode(struct net_device * dev) { struct uli526x_board_info *db = dev->priv; unsigned long flags; ULI526X_DBUG(0, "uli526x_set_filter_mode()", 0); spin_lock_irqsave(&db->lock, flags); if (dev->flags & IFF_PROMISC) { ULI526X_DBUG(0, "Enable PROM Mode", 0); db->cr6_data |= CR6_PM | CR6_PBF; update_cr6(db->cr6_data, db->ioaddr); spin_unlock_irqrestore(&db->lock, flags); return; } if (dev->flags & IFF_ALLMULTI || dev->mc_count > ULI5261_MAX_MULTICAST) { ULI526X_DBUG(0, "Pass all multicast address", dev->mc_count); db->cr6_data &= ~(CR6_PM | CR6_PBF); db->cr6_data |= CR6_PAM; spin_unlock_irqrestore(&db->lock, flags); return; } ULI526X_DBUG(0, "Set multicast address", dev->mc_count); send_filter_frame(dev, dev->mc_count); /* M5261/M5263 */ spin_unlock_irqrestore(&db->lock, flags); } static void ULi_ethtool_gset(struct uli526x_board_info *db, struct ethtool_cmd *ecmd) { ecmd->supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_Autoneg | SUPPORTED_MII); ecmd->advertising = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | ADVERTISED_Autoneg | ADVERTISED_MII); ecmd->port = PORT_MII; ecmd->phy_address = db->phy_addr; ecmd->transceiver = XCVR_EXTERNAL; ecmd->speed = 10; ecmd->duplex = DUPLEX_HALF; if(db->op_mode==ULI526X_100MHF || db->op_mode==ULI526X_100MFD) { ecmd->speed = 100; } if(db->op_mode==ULI526X_10MFD || db->op_mode==ULI526X_100MFD) { ecmd->duplex = DUPLEX_FULL; } if(db->link_failed) { ecmd->speed = -1; ecmd->duplex = -1; } if (db->media_mode & ULI526X_AUTO) { ecmd->autoneg = AUTONEG_ENABLE; } } static void netdev_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { struct uli526x_board_info *np = netdev_priv(dev); strcpy(info->driver, DRV_NAME); strcpy(info->version, DRV_VERSION); if (np->pdev) strcpy(info->bus_info, pci_name(np->pdev)); else sprintf(info->bus_info, "EISA 0x%lx %d", dev->base_addr, dev->irq); } static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct uli526x_board_info *np = netdev_priv(dev); ULi_ethtool_gset(np, cmd); return 0; } static u32 netdev_get_link(struct net_device *dev) { struct uli526x_board_info *np = netdev_priv(dev); if(np->link_failed) return 0; else return 1; } static void uli526x_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { wol->supported = WAKE_PHY | WAKE_MAGIC; wol->wolopts = 0; } static struct ethtool_ops netdev_ethtool_ops = { .get_drvinfo = netdev_get_drvinfo, .get_settings = netdev_get_settings, .get_link = netdev_get_link, .get_wol = uli526x_get_wol, }; /* * A periodic timer routine * Dynamic media sense, allocate Rx buffer... */ static void uli526x_timer(unsigned long data) { u32 tmp_cr8; unsigned char tmp_cr12=0; struct net_device *dev = (struct net_device *) data; struct uli526x_board_info *db = netdev_priv(dev); unsigned long flags; u8 TmpSpeed=10; //ULI526X_DBUG(0, "uli526x_timer()", 0); spin_lock_irqsave(&db->lock, flags); /* Dynamic reset ULI526X : system error or transmit time-out */ tmp_cr8 = inl(db->ioaddr + DCR8); if ( (db->interval_rx_cnt==0) && (tmp_cr8) ) { db->reset_cr8++; db->wait_reset = 1; } db->interval_rx_cnt = 0; /* TX polling kick monitor */ if ( db->tx_packet_cnt && time_after(jiffies, dev->trans_start + ULI526X_TX_KICK) ) { outl(0x1, dev->base_addr + DCR1); // Tx polling again // TX Timeout if ( time_after(jiffies, dev->trans_start + ULI526X_TX_TIMEOUT) ) { db->reset_TXtimeout++; db->wait_reset = 1; printk( "%s: Tx timeout - resetting\n", dev->name); } } if (db->wait_reset) { ULI526X_DBUG(0, "Dynamic Reset device", db->tx_packet_cnt); db->reset_count++; uli526x_dynamic_reset(dev); db->timer.expires = ULI526X_TIMER_WUT; add_timer(&db->timer); spin_unlock_irqrestore(&db->lock, flags); return; } /* Link status check, Dynamic media type change */ if((phy_read(db->ioaddr, db->phy_addr, 5, db->chip_id) & 0x01e0)!=0) tmp_cr12 = 3; if ( !(tmp_cr12 & 0x3) && !db->link_failed ) { /* Link Failed */ ULI526X_DBUG(0, "Link Failed", tmp_cr12); netif_carrier_off(dev); printk(KERN_INFO "uli526x: %s NIC Link is Down\n",dev->name); db->link_failed = 1; /* For Force 10/100M Half/Full mode: Enable Auto-Nego mode */ /* AUTO don't need */ if ( !(db->media_mode & 0x8) ) phy_write(db->ioaddr, db->phy_addr, 0, 0x1000, db->chip_id); /* AUTO mode, if INT phyxcer link failed, select EXT device */ if (db->media_mode & ULI526X_AUTO) { db->cr6_data&=~0x00000200; /* bit9=0, HD mode */ update_cr6(db->cr6_data, db->ioaddr); } } else if ((tmp_cr12 & 0x3) && db->link_failed) { ULI526X_DBUG(0, "Link link OK", tmp_cr12); db->link_failed = 0; /* Auto Sense Speed */ if ( (db->media_mode & ULI526X_AUTO) && uli526x_sense_speed(db) ) db->link_failed = 1; uli526x_process_mode(db); if(db->link_failed==0) { if(db->op_mode==ULI526X_100MHF || db->op_mode==ULI526X_100MFD) { TmpSpeed = 100; } if(db->op_mode==ULI526X_10MFD || db->op_mode==ULI526X_100MFD) { printk(KERN_INFO "uli526x: %s NIC Link is Up %d Mbps Full duplex\n",dev->name,TmpSpeed); } else { printk(KERN_INFO "uli526x: %s NIC Link is Up %d Mbps Half duplex\n",dev->name,TmpSpeed); } netif_carrier_on(dev); } /* SHOW_MEDIA_TYPE(db->op_mode); */ } else if(!(tmp_cr12 & 0x3) && db->link_failed) { if(db->init==1) { printk(KERN_INFO "uli526x: %s NIC Link is Down\n",dev->name); netif_carrier_off(dev); } } db->init=0; /* Timer active again */ db->timer.expires = ULI526X_TIMER_WUT; add_timer(&db->timer); spin_unlock_irqrestore(&db->lock, flags); } /* * Dynamic reset the ULI526X board * Stop ULI526X board * Free Tx/Rx allocated memory * Reset ULI526X board * Re-initialize ULI526X board */ static void uli526x_dynamic_reset(struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); ULI526X_DBUG(0, "uli526x_dynamic_reset()", 0); /* Sopt MAC controller */ db->cr6_data &= ~(CR6_RXSC | CR6_TXSC); /* Disable Tx/Rx */ update_cr6(db->cr6_data, dev->base_addr); outl(0, dev->base_addr + DCR7); /* Disable Interrupt */ outl(inl(dev->base_addr + DCR5), dev->base_addr + DCR5); /* Disable upper layer interface */ netif_stop_queue(dev); /* Free Rx Allocate buffer */ uli526x_free_rxbuffer(db); /* system variable init */ db->tx_packet_cnt = 0; db->rx_avail_cnt = 0; db->link_failed = 1; db->init=1; db->wait_reset = 0; /* Re-initialize ULI526X board */ uli526x_init(dev); /* Restart upper layer interface */ netif_wake_queue(dev); } /* * free all allocated rx buffer */ static void uli526x_free_rxbuffer(struct uli526x_board_info * db) { ULI526X_DBUG(0, "uli526x_free_rxbuffer()", 0); /* free allocated rx buffer */ while (db->rx_avail_cnt) { dev_kfree_skb(db->rx_ready_ptr->rx_skb_ptr); db->rx_ready_ptr = db->rx_ready_ptr->next_rx_desc; db->rx_avail_cnt--; } } /* * Reuse the SK buffer */ static void uli526x_reuse_skb(struct uli526x_board_info *db, struct sk_buff * skb) { struct rx_desc *rxptr = db->rx_insert_ptr; if (!(rxptr->rdes0 & cpu_to_le32(0x80000000))) { rxptr->rx_skb_ptr = skb; rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev, skb->tail, RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) ); wmb(); rxptr->rdes0 = cpu_to_le32(0x80000000); db->rx_avail_cnt++; db->rx_insert_ptr = rxptr->next_rx_desc; } else ULI526X_DBUG(0, "SK Buffer reuse method error", db->rx_avail_cnt); } /* * Initialize transmit/Receive descriptor * Using Chain structure, and allocate Tx/Rx buffer */ static void uli526x_descriptor_init(struct uli526x_board_info *db, unsigned long ioaddr) { struct tx_desc *tmp_tx; struct rx_desc *tmp_rx; unsigned char *tmp_buf; dma_addr_t tmp_tx_dma, tmp_rx_dma; dma_addr_t tmp_buf_dma; int i; ULI526X_DBUG(0, "uli526x_descriptor_init()", 0); /* tx descriptor start pointer */ db->tx_insert_ptr = db->first_tx_desc; db->tx_remove_ptr = db->first_tx_desc; outl(db->first_tx_desc_dma, ioaddr + DCR4); /* TX DESC address */ /* rx descriptor start pointer */ db->first_rx_desc = (void *)db->first_tx_desc + sizeof(struct tx_desc) * TX_DESC_CNT; db->first_rx_desc_dma = db->first_tx_desc_dma + sizeof(struct tx_desc) * TX_DESC_CNT; db->rx_insert_ptr = db->first_rx_desc; db->rx_ready_ptr = db->first_rx_desc; outl(db->first_rx_desc_dma, ioaddr + DCR3); /* RX DESC address */ /* Init Transmit chain */ tmp_buf = db->buf_pool_start; tmp_buf_dma = db->buf_pool_dma_start; tmp_tx_dma = db->first_tx_desc_dma; for (tmp_tx = db->first_tx_desc, i = 0; i < TX_DESC_CNT; i++, tmp_tx++) { tmp_tx->tx_buf_ptr = tmp_buf; tmp_tx->tdes0 = cpu_to_le32(0); tmp_tx->tdes1 = cpu_to_le32(0x81000000); /* IC, chain */ tmp_tx->tdes2 = cpu_to_le32(tmp_buf_dma); tmp_tx_dma += sizeof(struct tx_desc); tmp_tx->tdes3 = cpu_to_le32(tmp_tx_dma); tmp_tx->next_tx_desc = tmp_tx + 1; tmp_buf = tmp_buf + TX_BUF_ALLOC; tmp_buf_dma = tmp_buf_dma + TX_BUF_ALLOC; } (--tmp_tx)->tdes3 = cpu_to_le32(db->first_tx_desc_dma); tmp_tx->next_tx_desc = db->first_tx_desc; /* Init Receive descriptor chain */ tmp_rx_dma=db->first_rx_desc_dma; for (tmp_rx = db->first_rx_desc, i = 0; i < RX_DESC_CNT; i++, tmp_rx++) { tmp_rx->rdes0 = cpu_to_le32(0); tmp_rx->rdes1 = cpu_to_le32(0x01000600); tmp_rx_dma += sizeof(struct rx_desc); tmp_rx->rdes3 = cpu_to_le32(tmp_rx_dma); tmp_rx->next_rx_desc = tmp_rx + 1; } (--tmp_rx)->rdes3 = cpu_to_le32(db->first_rx_desc_dma); tmp_rx->next_rx_desc = db->first_rx_desc; /* pre-allocate Rx buffer */ allocate_rx_buffer(db); } /* * Update CR6 value * Firstly stop ULI526X, then written value and start */ static void update_cr6(u32 cr6_data, unsigned long ioaddr) { outl(cr6_data, ioaddr + DCR6); udelay(5); } /* * Send a setup frame for M5261/M5263 * This setup frame initialize ULI526X address filter mode */ static void send_filter_frame(struct net_device *dev, int mc_cnt) { struct uli526x_board_info *db = netdev_priv(dev); struct dev_mc_list *mcptr; struct tx_desc *txptr; u16 * addrptr; u32 * suptr; int i; ULI526X_DBUG(0, "send_filter_frame()", 0); txptr = db->tx_insert_ptr; suptr = (u32 *) txptr->tx_buf_ptr; /* Node address */ addrptr = (u16 *) dev->dev_addr; *suptr++ = addrptr[0]; *suptr++ = addrptr[1]; *suptr++ = addrptr[2]; /* broadcast address */ *suptr++ = 0xffff; *suptr++ = 0xffff; *suptr++ = 0xffff; /* fit the multicast address */ for (mcptr = dev->mc_list, i = 0; i < mc_cnt; i++, mcptr = mcptr->next) { addrptr = (u16 *) mcptr->dmi_addr; *suptr++ = addrptr[0]; *suptr++ = addrptr[1]; *suptr++ = addrptr[2]; } for (; i<14; i++) { *suptr++ = 0xffff; *suptr++ = 0xffff; *suptr++ = 0xffff; } /* prepare the setup frame */ db->tx_insert_ptr = txptr->next_tx_desc; txptr->tdes1 = cpu_to_le32(0x890000c0); /* Resource Check and Send the setup packet */ if (db->tx_packet_cnt < TX_DESC_CNT) { /* Resource Empty */ db->tx_packet_cnt++; txptr->tdes0 = cpu_to_le32(0x80000000); update_cr6(db->cr6_data | 0x2000, dev->base_addr); outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */ update_cr6(db->cr6_data, dev->base_addr); dev->trans_start = jiffies; } else printk(KERN_ERR DRV_NAME ": No Tx resource - Send_filter_frame!\n"); } /* * Allocate rx buffer, * As possible as allocate maxiumn Rx buffer */ static void allocate_rx_buffer(struct uli526x_board_info *db) { struct rx_desc *rxptr; struct sk_buff *skb; rxptr = db->rx_insert_ptr; while(db->rx_avail_cnt < RX_DESC_CNT) { if ( ( skb = dev_alloc_skb(RX_ALLOC_SIZE) ) == NULL ) break; rxptr->rx_skb_ptr = skb; /* FIXME (?) */ rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev, skb->tail, RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) ); wmb(); rxptr->rdes0 = cpu_to_le32(0x80000000); rxptr = rxptr->next_rx_desc; db->rx_avail_cnt++; } db->rx_insert_ptr = rxptr; } /* * Read one word data from the serial ROM */ static u16 read_srom_word(long ioaddr, int offset) { int i; u16 srom_data = 0; long cr9_ioaddr = ioaddr + DCR9; outl(CR9_SROM_READ, cr9_ioaddr); outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr); /* Send the Read Command 110b */ SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr); SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr); SROM_CLK_WRITE(SROM_DATA_0, cr9_ioaddr); /* Send the offset */ for (i = 5; i >= 0; i--) { srom_data = (offset & (1 << i)) ? SROM_DATA_1 : SROM_DATA_0; SROM_CLK_WRITE(srom_data, cr9_ioaddr); } outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr); for (i = 16; i > 0; i--) { outl(CR9_SROM_READ | CR9_SRCS | CR9_SRCLK, cr9_ioaddr); udelay(5); srom_data = (srom_data << 1) | ((inl(cr9_ioaddr) & CR9_CRDOUT) ? 1 : 0); outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr); udelay(5); } outl(CR9_SROM_READ, cr9_ioaddr); return srom_data; } /* * Auto sense the media mode */ static u8 uli526x_sense_speed(struct uli526x_board_info * db) { u8 ErrFlag = 0; u16 phy_mode; phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id); phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id); if ( (phy_mode & 0x24) == 0x24 ) { phy_mode = ((phy_read(db->ioaddr, db->phy_addr, 5, db->chip_id) & 0x01e0)<<7); if(phy_mode&0x8000) phy_mode = 0x8000; else if(phy_mode&0x4000) phy_mode = 0x4000; else if(phy_mode&0x2000) phy_mode = 0x2000; else phy_mode = 0x1000; /* printk(DRV_NAME ": Phy_mode %x ",phy_mode); */ switch (phy_mode) { case 0x1000: db->op_mode = ULI526X_10MHF; break; case 0x2000: db->op_mode = ULI526X_10MFD; break; case 0x4000: db->op_mode = ULI526X_100MHF; break; case 0x8000: db->op_mode = ULI526X_100MFD; break; default: db->op_mode = ULI526X_10MHF; ErrFlag = 1; break; } } else { db->op_mode = ULI526X_10MHF; ULI526X_DBUG(0, "Link Failed :", phy_mode); ErrFlag = 1; } return ErrFlag; } /* * Set 10/100 phyxcer capability * AUTO mode : phyxcer register4 is NIC capability * Force mode: phyxcer register4 is the force media */ static void uli526x_set_phyxcer(struct uli526x_board_info *db) { u16 phy_reg; /* Phyxcer capability setting */ phy_reg = phy_read(db->ioaddr, db->phy_addr, 4, db->chip_id) & ~0x01e0; if (db->media_mode & ULI526X_AUTO) { /* AUTO Mode */ phy_reg |= db->PHY_reg4; } else { /* Force Mode */ switch(db->media_mode) { case ULI526X_10MHF: phy_reg |= 0x20; break; case ULI526X_10MFD: phy_reg |= 0x40; break; case ULI526X_100MHF: phy_reg |= 0x80; break; case ULI526X_100MFD: phy_reg |= 0x100; break; } } /* Write new capability to Phyxcer Reg4 */ if ( !(phy_reg & 0x01e0)) { phy_reg|=db->PHY_reg4; db->media_mode|=ULI526X_AUTO; } phy_write(db->ioaddr, db->phy_addr, 4, phy_reg, db->chip_id); /* Restart Auto-Negotiation */ phy_write(db->ioaddr, db->phy_addr, 0, 0x1200, db->chip_id); udelay(50); } /* * Process op-mode AUTO mode : PHY controller in Auto-negotiation Mode * Force mode: PHY controller in force mode with HUB * N-way force capability with SWITCH */ static void uli526x_process_mode(struct uli526x_board_info *db) { u16 phy_reg; /* Full Duplex Mode Check */ if (db->op_mode & 0x4) db->cr6_data |= CR6_FDM; /* Set Full Duplex Bit */ else db->cr6_data &= ~CR6_FDM; /* Clear Full Duplex Bit */ update_cr6(db->cr6_data, db->ioaddr); /* 10/100M phyxcer force mode need */ if ( !(db->media_mode & 0x8)) { /* Forece Mode */ phy_reg = phy_read(db->ioaddr, db->phy_addr, 6, db->chip_id); if ( !(phy_reg & 0x1) ) { /* parter without N-Way capability */ phy_reg = 0x0; switch(db->op_mode) { case ULI526X_10MHF: phy_reg = 0x0; break; case ULI526X_10MFD: phy_reg = 0x100; break; case ULI526X_100MHF: phy_reg = 0x2000; break; case ULI526X_100MFD: phy_reg = 0x2100; break; } phy_write(db->ioaddr, db->phy_addr, 0, phy_reg, db->chip_id); phy_write(db->ioaddr, db->phy_addr, 0, phy_reg, db->chip_id); } } } /* * Write a word to Phy register */ static void phy_write(unsigned long iobase, u8 phy_addr, u8 offset, u16 phy_data, u32 chip_id) { u16 i; unsigned long ioaddr; if(chip_id == PCI_ULI5263_ID) { phy_writeby_cr10(iobase, phy_addr, offset, phy_data); return; } /* M5261/M5263 Chip */ ioaddr = iobase + DCR9; /* Send 33 synchronization clock to Phy controller */ for (i = 0; i < 35; i++) phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); /* Send start command(01) to Phy */ phy_write_1bit(ioaddr, PHY_DATA_0, chip_id); phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); /* Send write command(01) to Phy */ phy_write_1bit(ioaddr, PHY_DATA_0, chip_id); phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); /* Send Phy address */ for (i = 0x10; i > 0; i = i >> 1) phy_write_1bit(ioaddr, phy_addr & i ? PHY_DATA_1 : PHY_DATA_0, chip_id); /* Send register address */ for (i = 0x10; i > 0; i = i >> 1) phy_write_1bit(ioaddr, offset & i ? PHY_DATA_1 : PHY_DATA_0, chip_id); /* written trasnition */ phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); phy_write_1bit(ioaddr, PHY_DATA_0, chip_id); /* Write a word data to PHY controller */ for ( i = 0x8000; i > 0; i >>= 1) phy_write_1bit(ioaddr, phy_data & i ? PHY_DATA_1 : PHY_DATA_0, chip_id); } /* * Read a word data from phy register */ static u16 phy_read(unsigned long iobase, u8 phy_addr, u8 offset, u32 chip_id) { int i; u16 phy_data; unsigned long ioaddr; if(chip_id == PCI_ULI5263_ID) return phy_readby_cr10(iobase, phy_addr, offset); /* M5261/M5263 Chip */ ioaddr = iobase + DCR9; /* Send 33 synchronization clock to Phy controller */ for (i = 0; i < 35; i++) phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); /* Send start command(01) to Phy */ phy_write_1bit(ioaddr, PHY_DATA_0, chip_id); phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); /* Send read command(10) to Phy */ phy_write_1bit(ioaddr, PHY_DATA_1, chip_id); phy_write_1bit(ioaddr, PHY_DATA_0, chip_id); /* Send Phy address */ for (i = 0x10; i > 0; i = i >> 1) phy_write_1bit(ioaddr, phy_addr & i ? PHY_DATA_1 : PHY_DATA_0, chip_id); /* Send register address */ for (i = 0x10; i > 0; i = i >> 1) phy_write_1bit(ioaddr, offset & i ? PHY_DATA_1 : PHY_DATA_0, chip_id); /* Skip transition state */ phy_read_1bit(ioaddr, chip_id); /* read 16bit data */ for (phy_data = 0, i = 0; i < 16; i++) { phy_data <<= 1; phy_data |= phy_read_1bit(ioaddr, chip_id); } return phy_data; } static u16 phy_readby_cr10(unsigned long iobase, u8 phy_addr, u8 offset) { unsigned long ioaddr,cr10_value; ioaddr = iobase + DCR10; cr10_value = phy_addr; cr10_value = (cr10_value<<5) + offset; cr10_value = (cr10_value<<16) + 0x08000000; outl(cr10_value,ioaddr); udelay(1); while(1) { cr10_value = inl(ioaddr); if(cr10_value&0x10000000) break; } return (cr10_value&0x0ffff); } static void phy_writeby_cr10(unsigned long iobase, u8 phy_addr, u8 offset, u16 phy_data) { unsigned long ioaddr,cr10_value; ioaddr = iobase + DCR10; cr10_value = phy_addr; cr10_value = (cr10_value<<5) + offset; cr10_value = (cr10_value<<16) + 0x04000000 + phy_data; outl(cr10_value,ioaddr); udelay(1); } /* * Write one bit data to Phy Controller */ static void phy_write_1bit(unsigned long ioaddr, u32 phy_data, u32 chip_id) { outl(phy_data , ioaddr); /* MII Clock Low */ udelay(1); outl(phy_data | MDCLKH, ioaddr); /* MII Clock High */ udelay(1); outl(phy_data , ioaddr); /* MII Clock Low */ udelay(1); } /* * Read one bit phy data from PHY controller */ static u16 phy_read_1bit(unsigned long ioaddr, u32 chip_id) { u16 phy_data; outl(0x50000 , ioaddr); udelay(1); phy_data = ( inl(ioaddr) >> 19 ) & 0x1; outl(0x40000 , ioaddr); udelay(1); return phy_data; } static struct pci_device_id uli526x_pci_tbl[] = { { 0x10B9, 0x5261, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_ULI5261_ID }, { 0x10B9, 0x5263, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_ULI5263_ID }, { 0, } }; MODULE_DEVICE_TABLE(pci, uli526x_pci_tbl); static struct pci_driver uli526x_driver = { .name = "uli526x", .id_table = uli526x_pci_tbl, .probe = uli526x_init_one, .remove = __devexit_p(uli526x_remove_one), }; MODULE_AUTHOR("Peer Chen, peer.chen@uli.com.tw"); MODULE_DESCRIPTION("ULi M5261/M5263 fast ethernet driver"); MODULE_LICENSE("GPL"); MODULE_PARM(debug, "i"); MODULE_PARM(mode, "i"); MODULE_PARM(cr6set, "i"); MODULE_PARM_DESC(debug, "ULi M5261/M5263 enable debugging (0-1)"); MODULE_PARM_DESC(mode, "ULi M5261/M5263: Bit 0: 10/100Mbps, bit 2: duplex, bit 8: HomePNA"); /* Description: * when user used insmod to add module, system invoked init_module() * to register the services. */ static int __init uli526x_init_module(void) { int rc; printk(version); printed_version = 1; ULI526X_DBUG(0, "init_module() ", debug); if (debug) uli526x_debug = debug; /* set debug flag */ if (cr6set) uli526x_cr6_user_set = cr6set; switch(mode) { case ULI526X_10MHF: case ULI526X_100MHF: case ULI526X_10MFD: case ULI526X_100MFD: uli526x_media_mode = mode; break; default:uli526x_media_mode = ULI526X_AUTO; break; } rc = pci_module_init(&uli526x_driver); if (rc < 0) return rc; return 0; } /* * Description: * when user used rmmod to delete module, system invoked clean_module() * to un-register all registered services. */ static void __exit uli526x_cleanup_module(void) { ULI526X_DBUG(0, "uli526x_clean_module() ", debug); pci_unregister_driver(&uli526x_driver); } module_init(uli526x_init_module); module_exit(uli526x_cleanup_module);