| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Peer Chen | 6500 | 81.27% | 2 | 3.64% |
| François Romieu | 695 | 8.69% | 2 | 3.64% |
| Rafael J. Wysocki | 145 | 1.81% | 1 | 1.82% |
| Anton Vorontsov | 105 | 1.31% | 3 | 5.45% |
| Joe Perches | 81 | 1.01% | 4 | 7.27% |
| Philippe Reynes | 72 | 0.90% | 1 | 1.82% |
| Stephen Hemminger | 62 | 0.78% | 2 | 3.64% |
| Christophe Jaillet | 47 | 0.59% | 1 | 1.82% |
| Jiri Pirko | 34 | 0.43% | 5 | 9.09% |
| Grant Grundler | 31 | 0.39% | 1 | 1.82% |
| Vaibhav Gupta | 27 | 0.34% | 1 | 1.82% |
| Kees Cook | 26 | 0.33% | 1 | 1.82% |
| Maxim Levitsky | 24 | 0.30% | 1 | 1.82% |
| Pradeep A. Dalvi | 24 | 0.30% | 1 | 1.82% |
| Jakub Kiciński | 17 | 0.21% | 1 | 1.82% |
| Rick Jones | 14 | 0.18% | 1 | 1.82% |
| Kyle McMartin | 13 | 0.16% | 1 | 1.82% |
| Eric Sesterhenn / Snakebyte | 12 | 0.15% | 1 | 1.82% |
| Arnaldo Carvalho de Melo | 12 | 0.15% | 2 | 3.64% |
| Florian Westphal | 6 | 0.08% | 1 | 1.82% |
| Eric Dumazet | 6 | 0.08% | 1 | 1.82% |
| Benoit Taine | 6 | 0.08% | 1 | 1.82% |
| Al Viro | 6 | 0.08% | 2 | 3.64% |
| Yang Hongyang | 4 | 0.05% | 1 | 1.82% |
| Allen Pais | 3 | 0.04% | 1 | 1.82% |
| Patrick McHardy | 3 | 0.04% | 2 | 3.64% |
| Wang Chen | 3 | 0.04% | 1 | 1.82% |
| Wolfram Sang | 2 | 0.03% | 1 | 1.82% |
| Jeff Garzik | 2 | 0.03% | 1 | 1.82% |
| Henrik Kretzschmar | 2 | 0.03% | 1 | 1.82% |
| Eric W. Biedermann | 2 | 0.03% | 1 | 1.82% |
| Thomas Gleixner | 2 | 0.03% | 1 | 1.82% |
| Jiri Slaby | 2 | 0.03% | 1 | 1.82% |
| David Decotigny | 2 | 0.03% | 1 | 1.82% |
| Linus Torvalds | 1 | 0.01% | 1 | 1.82% |
| Johannes Berg | 1 | 0.01% | 1 | 1.82% |
| Andrew Morton | 1 | 0.01% | 1 | 1.82% |
| Hui Tang | 1 | 0.01% | 1 | 1.82% |
| David S. Miller | 1 | 0.01% | 1 | 1.82% |
| Julia Lawall | 1 | 0.01% | 1 | 1.82% |
| Total | 7998 | 55 |
// SPDX-License-Identifier: GPL-2.0-or-later /* */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #define DRV_NAME "uli526x" #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/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 <linux/bitops.h> #include <asm/processor.h> #include <asm/io.h> #include <asm/dma.h> #include <linux/uaccess.h> #define uw32(reg, val) iowrite32(val, ioaddr + (reg)) #define ur32(reg) ioread32(ioaddr + (reg)) /* 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) \ do { \ if (uli526x_debug || (dbug_now)) \ pr_err("%s %lx\n", (msg), (long) (value)); \ } while (0) #define SHOW_MEDIA_TYPE(mode) \ pr_err("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 /* Structure/enum declaration ------------------------------- */ struct tx_desc { __le32 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 { __le32 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 { struct uli_phy_ops { void (*write)(struct uli526x_board_info *, u8, u8, u16); u16 (*read)(struct uli526x_board_info *, u8, u8); } phy; struct net_device *next_dev; /* next device */ struct pci_dev *pdev; /* PCI device */ spinlock_t lock; void __iomem *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; /* 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 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 int mode = 8; /* function declaration ------------------------------------- */ static int uli526x_open(struct net_device *); static netdev_tx_t uli526x_start_xmit(struct sk_buff *, struct net_device *); static int uli526x_stop(struct net_device *); static void uli526x_set_filter_mode(struct net_device *); static const struct ethtool_ops netdev_ethtool_ops; static u16 read_srom_word(struct uli526x_board_info *, int); static irqreturn_t uli526x_interrupt(int, void *); #ifdef CONFIG_NET_POLL_CONTROLLER static void uli526x_poll(struct net_device *dev); #endif static void uli526x_descriptor_init(struct net_device *, void __iomem *); static void allocate_rx_buffer(struct net_device *); static void update_cr6(u32, void __iomem *); static void send_filter_frame(struct net_device *, int); static u16 phy_readby_cr9(struct uli526x_board_info *, u8, u8); static u16 phy_readby_cr10(struct uli526x_board_info *, u8, u8); static void phy_writeby_cr9(struct uli526x_board_info *, u8, u8, u16); static void phy_writeby_cr10(struct uli526x_board_info *, u8, u8, u16); static void phy_write_1bit(struct uli526x_board_info *db, u32); static u16 phy_read_1bit(struct uli526x_board_info *db); static u8 uli526x_sense_speed(struct uli526x_board_info *); static void uli526x_process_mode(struct uli526x_board_info *); static void uli526x_timer(struct timer_list *t); 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 *); static void srom_clk_write(struct uli526x_board_info *db, u32 data) { void __iomem *ioaddr = db->ioaddr; uw32(DCR9, data | CR9_SROM_READ | CR9_SRCS); udelay(5); uw32(DCR9, data | CR9_SROM_READ | CR9_SRCS | CR9_SRCLK); udelay(5); uw32(DCR9, data | CR9_SROM_READ | CR9_SRCS); udelay(5); } /* ULI526X network board routine ---------------------------- */ static const struct net_device_ops netdev_ops = { .ndo_open = uli526x_open, .ndo_stop = uli526x_stop, .ndo_start_xmit = uli526x_start_xmit, .ndo_set_rx_mode = uli526x_set_filter_mode, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = uli526x_poll, #endif }; /* * Search ULI526X board, allocate space and register it */ static int 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; void __iomem *ioaddr; u8 addr[ETH_ALEN]; int i, err; ULI526X_DBUG(0, "uli526x_init_one()", 0); /* Init network device */ dev = alloc_etherdev(sizeof(*db)); if (dev == NULL) return -ENOMEM; SET_NETDEV_DEV(dev, &pdev->dev); if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) { pr_warn("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)) { pr_err("I/O base is zero\n"); err = -ENODEV; goto err_out_disable; } if (pci_resource_len(pdev, 0) < (ULI526X_IO_SIZE) ) { pr_err("Allocated I/O size too small\n"); err = -ENODEV; goto err_out_disable; } err = pci_request_regions(pdev, DRV_NAME); if (err < 0) { pr_err("Failed to request PCI regions\n"); goto err_out_disable; } /* Init system & device */ db = netdev_priv(dev); /* Allocate Tx/Rx descriptor memory */ err = -ENOMEM; db->desc_pool_ptr = dma_alloc_coherent(&pdev->dev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, &db->desc_pool_dma_ptr, GFP_KERNEL); if (!db->desc_pool_ptr) goto err_out_release; db->buf_pool_ptr = dma_alloc_coherent(&pdev->dev, TX_BUF_ALLOC * TX_DESC_CNT + 4, &db->buf_pool_dma_ptr, GFP_KERNEL); if (!db->buf_pool_ptr) goto err_out_free_tx_desc; 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; switch (ent->driver_data) { case PCI_ULI5263_ID: db->phy.write = phy_writeby_cr10; db->phy.read = phy_readby_cr10; break; default: db->phy.write = phy_writeby_cr9; db->phy.read = phy_readby_cr9; break; } /* IO region. */ ioaddr = pci_iomap(pdev, 0, 0); if (!ioaddr) goto err_out_free_tx_buf; db->ioaddr = ioaddr; db->pdev = pdev; db->init = 1; pci_set_drvdata(pdev, dev); /* Register some necessary functions */ dev->netdev_ops = &netdev_ops; dev->ethtool_ops = &netdev_ethtool_ops; spin_lock_init(&db->lock); /* read 64 word srom data */ for (i = 0; i < 64; i++) ((__le16 *) db->srom)[i] = cpu_to_le16(read_srom_word(db, i)); /* Set Node address */ if(((u16 *) db->srom)[0] == 0xffff || ((u16 *) db->srom)[0] == 0) /* SROM absent, so read MAC address from ID Table */ { uw32(DCR0, 0x10000); //Diagnosis mode uw32(DCR13, 0x1c0); //Reset dianostic pointer port uw32(DCR14, 0); //Clear reset port uw32(DCR14, 0x10); //Reset ID Table pointer uw32(DCR14, 0); //Clear reset port uw32(DCR13, 0); //Clear CR13 uw32(DCR13, 0x1b0); //Select ID Table access port //Read MAC address from CR14 for (i = 0; i < 6; i++) addr[i] = ur32(DCR14); //Read end uw32(DCR13, 0); //Clear CR13 uw32(DCR0, 0); //Clear CR0 udelay(10); } else /*Exist SROM*/ { for (i = 0; i < 6; i++) addr[i] = db->srom[20 + i]; } eth_hw_addr_set(dev, addr); err = register_netdev (dev); if (err) goto err_out_unmap; netdev_info(dev, "ULi M%04lx at pci%s, %pM, irq %d\n", ent->driver_data >> 16, pci_name(pdev), dev->dev_addr, pdev->irq); pci_set_master(pdev); return 0; err_out_unmap: pci_iounmap(pdev, db->ioaddr); err_out_free_tx_buf: dma_free_coherent(&pdev->dev, TX_BUF_ALLOC * TX_DESC_CNT + 4, db->buf_pool_ptr, db->buf_pool_dma_ptr); err_out_free_tx_desc: dma_free_coherent(&pdev->dev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, db->desc_pool_ptr, db->desc_pool_dma_ptr); err_out_release: pci_release_regions(pdev); err_out_disable: pci_disable_device(pdev); err_out_free: free_netdev(dev); return err; } static void uli526x_remove_one(struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata(pdev); struct uli526x_board_info *db = netdev_priv(dev); unregister_netdev(dev); pci_iounmap(pdev, db->ioaddr); dma_free_coherent(&db->pdev->dev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, db->desc_pool_ptr, db->desc_pool_dma_ptr); dma_free_coherent(&db->pdev->dev, TX_BUF_ALLOC * TX_DESC_CNT + 4, db->buf_pool_ptr, db->buf_pool_dma_ptr); pci_release_regions(pdev); pci_disable_device(pdev); free_netdev(dev); } /* * 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); /* 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); ret = request_irq(db->pdev->irq, uli526x_interrupt, IRQF_SHARED, dev->name, dev); if (ret) return ret; /* Active System Interface */ netif_wake_queue(dev); /* set and active a timer process */ timer_setup(&db->timer, uli526x_timer, 0); db->timer.expires = ULI526X_TIMER_WUT + HZ * 2; 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); struct uli_phy_ops *phy = &db->phy; void __iomem *ioaddr = db->ioaddr; u8 phy_tmp; u8 timeout; u16 phy_reg_reset; ULI526X_DBUG(0, "uli526x_init()", 0); /* Reset M526x MAC controller */ uw32(DCR0, ULI526X_RESET); /* RESET MAC */ udelay(100); uw32(DCR0, db->cr0_data); 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++) { u16 phy_value; phy_value = phy->read(db, phy_tmp, 3); //peer add if (phy_value != 0xffff && phy_value != 0) { db->phy_addr = phy_tmp; break; } } if (phy_tmp == 32) pr_warn("Can not find the phy address!!!\n"); /* Parser SROM and media mode */ db->media_mode = uli526x_media_mode; /* phyxcer capability setting */ phy_reg_reset = phy->read(db, db->phy_addr, 0); phy_reg_reset = (phy_reg_reset | 0x8000); phy->write(db, db->phy_addr, 0, phy_reg_reset); /* See IEEE 802.3-2002.pdf (Section 2, Chapter "22.2.4 Management * functions") or phy data sheet for details on phy reset */ udelay(500); timeout = 10; while (timeout-- && phy->read(db, db->phy_addr, 0) & 0x8000) udelay(100); /* 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 descriptor and CR3/4 */ uli526x_descriptor_init(dev, ioaddr); /* Init CR6 to program M526X operation */ update_cr6(db->cr6_data, ioaddr); /* Send setup frame */ send_filter_frame(dev, netdev_mc_count(dev)); /* M5261/M5263 */ /* Init CR7, interrupt active bit */ db->cr7_data = CR7_DEFAULT; uw32(DCR7, db->cr7_data); /* Init CR15, Tx jabber and Rx watchdog timer */ uw32(DCR15, db->cr15_data); /* 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 netdev_tx_t uli526x_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); void __iomem *ioaddr = db->ioaddr; 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) { netdev_err(dev, "big packet = %d\n", (u16)skb->len); dev_kfree_skb_any(skb); return NETDEV_TX_OK; } 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); netdev_err(dev, "No Tx resource %ld\n", db->tx_packet_cnt); return NETDEV_TX_BUSY; } /* Disable NIC interrupt */ uw32(DCR7, 0); /* transmit this packet */ txptr = db->tx_insert_ptr; skb_copy_from_linear_data(skb, txptr->tx_buf_ptr, 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 */ uw32(DCR1, 0x1); /* Issue Tx polling */ netif_trans_update(dev); /* 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); uw32(DCR7, db->cr7_data); /* free this SKB */ dev_consume_skb_any(skb); return NETDEV_TX_OK; } /* * 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); void __iomem *ioaddr = db->ioaddr; /* disable system */ netif_stop_queue(dev); /* deleted timer */ del_timer_sync(&db->timer); /* Reset & stop ULI526X board */ uw32(DCR0, ULI526X_RESET); udelay(5); db->phy.write(db, db->phy_addr, 0, 0x8000); /* free interrupt */ free_irq(db->pdev->irq, dev); /* free allocated rx buffer */ uli526x_free_rxbuffer(db); 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 net_device *dev = dev_id; struct uli526x_board_info *db = netdev_priv(dev); void __iomem *ioaddr = db->ioaddr; unsigned long flags; spin_lock_irqsave(&db->lock, flags); uw32(DCR7, 0); /* Got ULI526X status */ db->cr5_data = ur32(DCR5); uw32(DCR5, db->cr5_data); if ( !(db->cr5_data & 0x180c1) ) { /* Restore CR7 to enable interrupt mask */ uw32(DCR7, db->cr7_data); spin_unlock_irqrestore(&db->lock, flags); 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(dev); /* Free the transmitted descriptor */ if ( db->cr5_data & 0x01) uli526x_free_tx_pkt(dev, db); /* Restore CR7 to enable interrupt mask */ uw32(DCR7, db->cr7_data); spin_unlock_irqrestore(&db->lock, flags); return IRQ_HANDLED; } #ifdef CONFIG_NET_POLL_CONTROLLER static void uli526x_poll(struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); /* ISR grabs the irqsave lock, so this should be safe */ uli526x_interrupt(db->pdev->irq, dev); } #endif /* * 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); if (tdes0 & 0x80000000) break; /* A packet sent completed */ db->tx_packet_cnt--; dev->stats.tx_packets++; /* Transmit statistic counter */ if ( tdes0 != 0x7fffffff ) { dev->stats.collisions += (tdes0 >> 3) & 0xf; dev->stats.tx_bytes += le32_to_cpu(txptr->tdes1) & 0x7ff; if (tdes0 & TDES0_ERR_MASK) { dev->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++; dma_unmap_single(&db->pdev->dev, le32_to_cpu(rxptr->rdes2), RX_ALLOC_SIZE, DMA_FROM_DEVICE); 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 */ dev->stats.rx_errors++; if (rdes0 & 1) dev->stats.rx_fifo_errors++; if (rdes0 & 2) dev->stats.rx_crc_errors++; if (rdes0 & 0x80) dev->stats.rx_length_errors++; } if ( !(rdes0 & 0x8000) || ((db->cr6_data & CR6_PM) && (rxlen>6)) ) { struct sk_buff *new_skb = NULL; skb = rxptr->rx_skb_ptr; /* Good packet, send to upper layer */ /* Shorst packet used new SKB */ if ((rxlen < RX_COPY_SIZE) && (((new_skb = netdev_alloc_skb(dev, rxlen + 2)) != NULL))) { skb = new_skb; /* size less than COPY_SIZE, allocate a rxlen SKB */ skb_reserve(skb, 2); /* 16byte align */ skb_put_data(skb, skb_tail_pointer(rxptr->rx_skb_ptr), rxlen); uli526x_reuse_skb(db, rxptr->rx_skb_ptr); } else skb_put(skb, rxlen); skb->protocol = eth_type_trans(skb, dev); netif_rx(skb); dev->stats.rx_packets++; dev->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; } /* * Set ULI526X multicast address */ static void uli526x_set_filter_mode(struct net_device * dev) { struct uli526x_board_info *db = netdev_priv(dev); 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 || netdev_mc_count(dev) > ULI5261_MAX_MULTICAST) { ULI526X_DBUG(0, "Pass all multicast address", netdev_mc_count(dev)); 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", netdev_mc_count(dev)); send_filter_frame(dev, netdev_mc_count(dev)); /* M5261/M5263 */ spin_unlock_irqrestore(&db->lock, flags); } static void ULi_ethtool_get_link_ksettings(struct uli526x_board_info *db, struct ethtool_link_ksettings *cmd) { u32 supported, advertising; supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_Autoneg | SUPPORTED_MII); advertising = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | ADVERTISED_Autoneg | ADVERTISED_MII); ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, supported); ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, advertising); cmd->base.port = PORT_MII; cmd->base.phy_address = db->phy_addr; cmd->base.speed = SPEED_10; cmd->base.duplex = DUPLEX_HALF; if(db->op_mode==ULI526X_100MHF || db->op_mode==ULI526X_100MFD) { cmd->base.speed = SPEED_100; } if(db->op_mode==ULI526X_10MFD || db->op_mode==ULI526X_100MFD) { cmd->base.duplex = DUPLEX_FULL; } if(db->link_failed) { cmd->base.speed = SPEED_UNKNOWN; cmd->base.duplex = DUPLEX_UNKNOWN; } if (db->media_mode & ULI526X_AUTO) { cmd->base.autoneg = AUTONEG_ENABLE; } } static void netdev_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { struct uli526x_board_info *np = netdev_priv(dev); strscpy(info->driver, DRV_NAME, sizeof(info->driver)); strscpy(info->bus_info, pci_name(np->pdev), sizeof(info->bus_info)); } static int netdev_get_link_ksettings(struct net_device *dev, struct ethtool_link_ksettings *cmd) { struct uli526x_board_info *np = netdev_priv(dev); ULi_ethtool_get_link_ksettings(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 const struct ethtool_ops netdev_ethtool_ops = { .get_drvinfo = netdev_get_drvinfo, .get_link = netdev_get_link, .get_wol = uli526x_get_wol, .get_link_ksettings = netdev_get_link_ksettings, }; /* * A periodic timer routine * Dynamic media sense, allocate Rx buffer... */ static void uli526x_timer(struct timer_list *t) { struct uli526x_board_info *db = from_timer(db, t, timer); struct net_device *dev = pci_get_drvdata(db->pdev); struct uli_phy_ops *phy = &db->phy; void __iomem *ioaddr = db->ioaddr; unsigned long flags; u8 tmp_cr12 = 0; u32 tmp_cr8; //ULI526X_DBUG(0, "uli526x_timer()", 0); spin_lock_irqsave(&db->lock, flags); /* Dynamic reset ULI526X : system error or transmit time-out */ tmp_cr8 = ur32(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(dev) + ULI526X_TX_KICK) ) { uw32(DCR1, 0x1); // Tx polling again // TX Timeout if ( time_after(jiffies, dev_trans_start(dev) + ULI526X_TX_TIMEOUT) ) { db->reset_TXtimeout++; db->wait_reset = 1; netdev_err(dev, " Tx timeout - resetting\n"); } } 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, db->phy_addr, 5) & 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); netdev_info(dev, "NIC Link is Down\n"); 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, db->phy_addr, 0, 0x1000); /* 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) { netdev_info(dev, "NIC Link is Up %d Mbps %s duplex\n", (db->op_mode == ULI526X_100MHF || db->op_mode == ULI526X_100MFD) ? 100 : 10, (db->op_mode == ULI526X_10MFD || db->op_mode == ULI526X_100MFD) ? "Full" : "Half"); netif_carrier_on(dev); } /* SHOW_MEDIA_TYPE(db->op_mode); */ } else if(!(tmp_cr12 & 0x3) && db->link_failed) { if(db->init==1) { netdev_info(dev, "NIC Link is Down\n"); 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); } /* * Stop ULI526X board * Free Tx/Rx allocated memory * Init system variable */ static void uli526x_reset_prepare(struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); void __iomem *ioaddr = db->ioaddr; /* Sopt MAC controller */ db->cr6_data &= ~(CR6_RXSC | CR6_TXSC); /* Disable Tx/Rx */ update_cr6(db->cr6_data, ioaddr); uw32(DCR7, 0); /* Disable Interrupt */ uw32(DCR5, ur32(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; } /* * 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) { ULI526X_DBUG(0, "uli526x_dynamic_reset()", 0); uli526x_reset_prepare(dev); /* Re-initialize ULI526X board */ uli526x_init(dev); /* Restart upper layer interface */ netif_wake_queue(dev); } /* * Suspend the interface. */ static int __maybe_unused uli526x_suspend(struct device *dev_d) { struct net_device *dev = dev_get_drvdata(dev_d); ULI526X_DBUG(0, "uli526x_suspend", 0); if (!netif_running(dev)) return 0; netif_device_detach(dev); uli526x_reset_prepare(dev); device_set_wakeup_enable(dev_d, 0); return 0; } /* * Resume the interface. */ static int __maybe_unused uli526x_resume(struct device *dev_d) { struct net_device *dev = dev_get_drvdata(dev_d); ULI526X_DBUG(0, "uli526x_resume", 0); if (!netif_running(dev)) return 0; netif_device_attach(dev); /* Re-initialize ULI526X board */ uli526x_init(dev); /* Restart upper layer interface */ netif_wake_queue(dev); return 0; } /* * 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(dma_map_single(&db->pdev->dev, skb_tail_pointer(skb), RX_ALLOC_SIZE, DMA_FROM_DEVICE)); 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 net_device *dev, void __iomem *ioaddr) { struct uli526x_board_info *db = netdev_priv(dev); 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; uw32(DCR4, db->first_tx_desc_dma); /* 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; uw32(DCR3, db->first_rx_desc_dma); /* 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(dev); } /* * Update CR6 value * Firstly stop ULI526X, then written value and start */ static void update_cr6(u32 cr6_data, void __iomem *ioaddr) { uw32(DCR6, cr6_data); udelay(5); } /* * Send a setup frame for M5261/M5263 * This setup frame initialize ULI526X address filter mode */ #ifdef __BIG_ENDIAN #define FLT_SHIFT 16 #else #define FLT_SHIFT 0 #endif static void send_filter_frame(struct net_device *dev, int mc_cnt) { struct uli526x_board_info *db = netdev_priv(dev); void __iomem *ioaddr = db->ioaddr; struct netdev_hw_addr *ha; struct tx_desc *txptr; const 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 = (const u16 *) dev->dev_addr; *suptr++ = addrptr[0] << FLT_SHIFT; *suptr++ = addrptr[1] << FLT_SHIFT; *suptr++ = addrptr[2] << FLT_SHIFT; /* broadcast address */ *suptr++ = 0xffff << FLT_SHIFT; *suptr++ = 0xffff << FLT_SHIFT; *suptr++ = 0xffff << FLT_SHIFT; /* fit the multicast address */ netdev_for_each_mc_addr(ha, dev) { addrptr = (u16 *) ha->addr; *suptr++ = addrptr[0] << FLT_SHIFT; *suptr++ = addrptr[1] << FLT_SHIFT; *suptr++ = addrptr[2] << FLT_SHIFT; } for (i = netdev_mc_count(dev); i < 14; i++) { *suptr++ = 0xffff << FLT_SHIFT; *suptr++ = 0xffff << FLT_SHIFT; *suptr++ = 0xffff << FLT_SHIFT; } /* 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, ioaddr); uw32(DCR1, 0x1); /* Issue Tx polling */ update_cr6(db->cr6_data, ioaddr); netif_trans_update(dev); } else netdev_err(dev, "No Tx resource - Send_filter_frame!\n"); } /* * Allocate rx buffer, * As possible as allocate maxiumn Rx buffer */ static void allocate_rx_buffer(struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); struct rx_desc *rxptr; struct sk_buff *skb; rxptr = db->rx_insert_ptr; while(db->rx_avail_cnt < RX_DESC_CNT) { skb = netdev_alloc_skb(dev, RX_ALLOC_SIZE); if (skb == NULL) break; rxptr->rx_skb_ptr = skb; /* FIXME (?) */ rxptr->rdes2 = cpu_to_le32(dma_map_single(&db->pdev->dev, skb_tail_pointer(skb), RX_ALLOC_SIZE, DMA_FROM_DEVICE)); 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(struct uli526x_board_info *db, int offset) { void __iomem *ioaddr = db->ioaddr; u16 srom_data = 0; int i; uw32(DCR9, CR9_SROM_READ); uw32(DCR9, CR9_SROM_READ | CR9_SRCS); /* Send the Read Command 110b */ srom_clk_write(db, SROM_DATA_1); srom_clk_write(db, SROM_DATA_1); srom_clk_write(db, SROM_DATA_0); /* Send the offset */ for (i = 5; i >= 0; i--) { srom_data = (offset & (1 << i)) ? SROM_DATA_1 : SROM_DATA_0; srom_clk_write(db, srom_data); } uw32(DCR9, CR9_SROM_READ | CR9_SRCS); for (i = 16; i > 0; i--) { uw32(DCR9, CR9_SROM_READ | CR9_SRCS | CR9_SRCLK); udelay(5); srom_data = (srom_data << 1) | ((ur32(DCR9) & CR9_CRDOUT) ? 1 : 0); uw32(DCR9, CR9_SROM_READ | CR9_SRCS); udelay(5); } uw32(DCR9, CR9_SROM_READ); return srom_data; } /* * Auto sense the media mode */ static u8 uli526x_sense_speed(struct uli526x_board_info * db) { struct uli_phy_ops *phy = &db->phy; u8 ErrFlag = 0; u16 phy_mode; phy_mode = phy->read(db, db->phy_addr, 1); phy_mode = phy->read(db, db->phy_addr, 1); if ( (phy_mode & 0x24) == 0x24 ) { phy_mode = ((phy->read(db, db->phy_addr, 5) & 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; 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) { struct uli_phy_ops *phy = &db->phy; u16 phy_reg; /* Phyxcer capability setting */ phy_reg = phy->read(db, db->phy_addr, 4) & ~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, db->phy_addr, 4, phy_reg); /* Restart Auto-Negotiation */ phy->write(db, db->phy_addr, 0, 0x1200); 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) { struct uli_phy_ops *phy = &db->phy; 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, db->phy_addr, 6); 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, db->phy_addr, 0, phy_reg); } } } /* M5261/M5263 Chip */ static void phy_writeby_cr9(struct uli526x_board_info *db, u8 phy_addr, u8 offset, u16 phy_data) { u16 i; /* Send 33 synchronization clock to Phy controller */ for (i = 0; i < 35; i++) phy_write_1bit(db, PHY_DATA_1); /* Send start command(01) to Phy */ phy_write_1bit(db, PHY_DATA_0); phy_write_1bit(db, PHY_DATA_1); /* Send write command(01) to Phy */ phy_write_1bit(db, PHY_DATA_0); phy_write_1bit(db, PHY_DATA_1); /* Send Phy address */ for (i = 0x10; i > 0; i = i >> 1) phy_write_1bit(db, phy_addr & i ? PHY_DATA_1 : PHY_DATA_0); /* Send register address */ for (i = 0x10; i > 0; i = i >> 1) phy_write_1bit(db, offset & i ? PHY_DATA_1 : PHY_DATA_0); /* written trasnition */ phy_write_1bit(db, PHY_DATA_1); phy_write_1bit(db, PHY_DATA_0); /* Write a word data to PHY controller */ for (i = 0x8000; i > 0; i >>= 1) phy_write_1bit(db, phy_data & i ? PHY_DATA_1 : PHY_DATA_0); } static u16 phy_readby_cr9(struct uli526x_board_info *db, u8 phy_addr, u8 offset) { u16 phy_data; int i; /* Send 33 synchronization clock to Phy controller */ for (i = 0; i < 35; i++) phy_write_1bit(db, PHY_DATA_1); /* Send start command(01) to Phy */ phy_write_1bit(db, PHY_DATA_0); phy_write_1bit(db, PHY_DATA_1); /* Send read command(10) to Phy */ phy_write_1bit(db, PHY_DATA_1); phy_write_1bit(db, PHY_DATA_0); /* Send Phy address */ for (i = 0x10; i > 0; i = i >> 1) phy_write_1bit(db, phy_addr & i ? PHY_DATA_1 : PHY_DATA_0); /* Send register address */ for (i = 0x10; i > 0; i = i >> 1) phy_write_1bit(db, offset & i ? PHY_DATA_1 : PHY_DATA_0); /* Skip transition state */ phy_read_1bit(db); /* read 16bit data */ for (phy_data = 0, i = 0; i < 16; i++) { phy_data <<= 1; phy_data |= phy_read_1bit(db); } return phy_data; } static u16 phy_readby_cr10(struct uli526x_board_info *db, u8 phy_addr, u8 offset) { void __iomem *ioaddr = db->ioaddr; u32 cr10_value = phy_addr; cr10_value = (cr10_value << 5) + offset; cr10_value = (cr10_value << 16) + 0x08000000; uw32(DCR10, cr10_value); udelay(1); while (1) { cr10_value = ur32(DCR10); if (cr10_value & 0x10000000) break; } return cr10_value & 0x0ffff; } static void phy_writeby_cr10(struct uli526x_board_info *db, u8 phy_addr, u8 offset, u16 phy_data) { void __iomem *ioaddr = db->ioaddr; u32 cr10_value = phy_addr; cr10_value = (cr10_value << 5) + offset; cr10_value = (cr10_value << 16) + 0x04000000 + phy_data; uw32(DCR10, cr10_value); udelay(1); } /* * Write one bit data to Phy Controller */ static void phy_write_1bit(struct uli526x_board_info *db, u32 data) { void __iomem *ioaddr = db->ioaddr; uw32(DCR9, data); /* MII Clock Low */ udelay(1); uw32(DCR9, data | MDCLKH); /* MII Clock High */ udelay(1); uw32(DCR9, data); /* MII Clock Low */ udelay(1); } /* * Read one bit phy data from PHY controller */ static u16 phy_read_1bit(struct uli526x_board_info *db) { void __iomem *ioaddr = db->ioaddr; u16 phy_data; uw32(DCR9, 0x50000); udelay(1); phy_data = (ur32(DCR9) >> 19) & 0x1; uw32(DCR9, 0x40000); udelay(1); return phy_data; } static const 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 SIMPLE_DEV_PM_OPS(uli526x_pm_ops, uli526x_suspend, uli526x_resume); static struct pci_driver uli526x_driver = { .name = "uli526x", .id_table = uli526x_pci_tbl, .probe = uli526x_init_one, .remove = uli526x_remove_one, .driver.pm = &uli526x_pm_ops, }; MODULE_AUTHOR("Peer Chen, peer.chen@uli.com.tw"); MODULE_DESCRIPTION("ULi M5261/M5263 fast ethernet driver"); MODULE_LICENSE("GPL"); module_param(debug, int, 0644); module_param(mode, int, 0); module_param(cr6set, int, 0); 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) { 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; } return pci_register_driver(&uli526x_driver); } /* * 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_cleanup_module() ", debug); pci_unregister_driver(&uli526x_driver); } module_init(uli526x_init_module); module_exit(uli526x_cleanup_module);
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