125763b3cSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * wanXL serial card driver for Linux 41da177e4SLinus Torvalds * host part 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (C) 2003 Krzysztof Halasa <khc@pm.waw.pl> 71da177e4SLinus Torvalds * 81da177e4SLinus Torvalds * Status: 91da177e4SLinus Torvalds * - Only DTE (external clock) support with NRZ and NRZI encodings 101da177e4SLinus Torvalds * - wanXL100 will require minor driver modifications, no access to hw 111da177e4SLinus Torvalds */ 121da177e4SLinus Torvalds 1312a3bfefSJoe Perches #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 1412a3bfefSJoe Perches 151da177e4SLinus Torvalds #include <linux/module.h> 161da177e4SLinus Torvalds #include <linux/kernel.h> 171da177e4SLinus Torvalds #include <linux/slab.h> 181da177e4SLinus Torvalds #include <linux/sched.h> 191da177e4SLinus Torvalds #include <linux/types.h> 201da177e4SLinus Torvalds #include <linux/fcntl.h> 211da177e4SLinus Torvalds #include <linux/string.h> 221da177e4SLinus Torvalds #include <linux/errno.h> 231da177e4SLinus Torvalds #include <linux/init.h> 24a6b7a407SAlexey Dobriyan #include <linux/interrupt.h> 251da177e4SLinus Torvalds #include <linux/ioport.h> 261da177e4SLinus Torvalds #include <linux/netdevice.h> 271da177e4SLinus Torvalds #include <linux/hdlc.h> 281da177e4SLinus Torvalds #include <linux/pci.h> 291e7f0bd8SDomen Puncer #include <linux/dma-mapping.h> 30164006daSAl Viro #include <linux/delay.h> 311da177e4SLinus Torvalds #include <asm/io.h> 321da177e4SLinus Torvalds 331da177e4SLinus Torvalds #include "wanxl.h" 341da177e4SLinus Torvalds 351da177e4SLinus Torvalds static const char *version = "wanXL serial card driver version: 0.48"; 361da177e4SLinus Torvalds 371da177e4SLinus Torvalds #define PLX_CTL_RESET 0x40000000 /* adapter reset */ 381da177e4SLinus Torvalds 391da177e4SLinus Torvalds #undef DEBUG_PKT 401da177e4SLinus Torvalds #undef DEBUG_PCI 411da177e4SLinus Torvalds 421da177e4SLinus Torvalds /* MAILBOX #1 - PUTS COMMANDS */ 431da177e4SLinus Torvalds #define MBX1_CMD_ABORTJ 0x85000000 /* Abort and Jump */ 441da177e4SLinus Torvalds #ifdef __LITTLE_ENDIAN 451da177e4SLinus Torvalds #define MBX1_CMD_BSWAP 0x8C000001 /* little-endian Byte Swap Mode */ 461da177e4SLinus Torvalds #else 471da177e4SLinus Torvalds #define MBX1_CMD_BSWAP 0x8C000000 /* big-endian Byte Swap Mode */ 481da177e4SLinus Torvalds #endif 491da177e4SLinus Torvalds 501da177e4SLinus Torvalds /* MAILBOX #2 - DRAM SIZE */ 511da177e4SLinus Torvalds #define MBX2_MEMSZ_MASK 0xFFFF0000 /* PUTS Memory Size Register mask */ 521da177e4SLinus Torvalds 53db569581SHimangi Saraogi struct port { 541da177e4SLinus Torvalds struct net_device *dev; 55db569581SHimangi Saraogi struct card *card; 561da177e4SLinus Torvalds spinlock_t lock; /* for wanxl_xmit */ 571da177e4SLinus Torvalds int node; /* physical port #0 - 3 */ 581da177e4SLinus Torvalds unsigned int clock_type; 591da177e4SLinus Torvalds int tx_in, tx_out; 601da177e4SLinus Torvalds struct sk_buff *tx_skbs[TX_BUFFERS]; 61db569581SHimangi Saraogi }; 621da177e4SLinus Torvalds 63db569581SHimangi Saraogi struct card_status { 641da177e4SLinus Torvalds desc_t rx_descs[RX_QUEUE_LENGTH]; 651da177e4SLinus Torvalds port_status_t port_status[4]; 66db569581SHimangi Saraogi }; 671da177e4SLinus Torvalds 68db569581SHimangi Saraogi struct card { 691da177e4SLinus Torvalds int n_ports; /* 1, 2 or 4 ports */ 701da177e4SLinus Torvalds u8 irq; 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds u8 __iomem *plx; /* PLX PCI9060 virtual base address */ 731da177e4SLinus Torvalds struct pci_dev *pdev; /* for pci_name(pdev) */ 741da177e4SLinus Torvalds int rx_in; 751da177e4SLinus Torvalds struct sk_buff *rx_skbs[RX_QUEUE_LENGTH]; 76db569581SHimangi Saraogi struct card_status *status; /* shared between host and card */ 771da177e4SLinus Torvalds dma_addr_t status_address; 7837e1244aSGustavo A. R. Silva struct port ports[]; /* 1 - 4 port structures follow */ 79db569581SHimangi Saraogi }; 801da177e4SLinus Torvalds 81db569581SHimangi Saraogi static inline struct port *dev_to_port(struct net_device *dev) 821da177e4SLinus Torvalds { 83db569581SHimangi Saraogi return (struct port *)dev_to_hdlc(dev)->priv; 841da177e4SLinus Torvalds } 851da177e4SLinus Torvalds 86db569581SHimangi Saraogi static inline port_status_t *get_status(struct port *port) 871da177e4SLinus Torvalds { 881da177e4SLinus Torvalds return &port->card->status->port_status[port->node]; 891da177e4SLinus Torvalds } 901da177e4SLinus Torvalds 911da177e4SLinus Torvalds #ifdef DEBUG_PCI 921da177e4SLinus Torvalds static inline dma_addr_t pci_map_single_debug(struct pci_dev *pdev, void *ptr, 931da177e4SLinus Torvalds size_t size, int direction) 941da177e4SLinus Torvalds { 9524dd377aSChristophe JAILLET dma_addr_t addr = dma_map_single(&pdev->dev, ptr, size, direction); 96*f0328a19SPeng Li 971da177e4SLinus Torvalds if (addr + size > 0x100000000LL) 9812a3bfefSJoe Perches pr_crit("%s: pci_map_single() returned memory at 0x%llx!\n", 9912a3bfefSJoe Perches pci_name(pdev), (unsigned long long)addr); 1001da177e4SLinus Torvalds return addr; 1011da177e4SLinus Torvalds } 1021da177e4SLinus Torvalds 1031da177e4SLinus Torvalds #undef pci_map_single 1041da177e4SLinus Torvalds #define pci_map_single pci_map_single_debug 1051da177e4SLinus Torvalds #endif 1061da177e4SLinus Torvalds 1071da177e4SLinus Torvalds /* Cable and/or personality module change interrupt service */ 108db569581SHimangi Saraogi static inline void wanxl_cable_intr(struct port *port) 1091da177e4SLinus Torvalds { 1101da177e4SLinus Torvalds u32 value = get_status(port)->cable; 1111da177e4SLinus Torvalds int valid = 1; 1121da177e4SLinus Torvalds const char *cable, *pm, *dte = "", *dsr = "", *dcd = ""; 1131da177e4SLinus Torvalds 1141da177e4SLinus Torvalds switch(value & 0x7) { 1151da177e4SLinus Torvalds case STATUS_CABLE_V35: cable = "V.35"; break; 1161da177e4SLinus Torvalds case STATUS_CABLE_X21: cable = "X.21"; break; 1171da177e4SLinus Torvalds case STATUS_CABLE_V24: cable = "V.24"; break; 1181da177e4SLinus Torvalds case STATUS_CABLE_EIA530: cable = "EIA530"; break; 1191da177e4SLinus Torvalds case STATUS_CABLE_NONE: cable = "no"; break; 1201da177e4SLinus Torvalds default: cable = "invalid"; 1211da177e4SLinus Torvalds } 1221da177e4SLinus Torvalds 1231da177e4SLinus Torvalds switch((value >> STATUS_CABLE_PM_SHIFT) & 0x7) { 1241da177e4SLinus Torvalds case STATUS_CABLE_V35: pm = "V.35"; break; 1251da177e4SLinus Torvalds case STATUS_CABLE_X21: pm = "X.21"; break; 1261da177e4SLinus Torvalds case STATUS_CABLE_V24: pm = "V.24"; break; 1271da177e4SLinus Torvalds case STATUS_CABLE_EIA530: pm = "EIA530"; break; 1281da177e4SLinus Torvalds case STATUS_CABLE_NONE: pm = "no personality"; valid = 0; break; 1291da177e4SLinus Torvalds default: pm = "invalid personality"; valid = 0; 1301da177e4SLinus Torvalds } 1311da177e4SLinus Torvalds 1321da177e4SLinus Torvalds if (valid) { 1331da177e4SLinus Torvalds if ((value & 7) == ((value >> STATUS_CABLE_PM_SHIFT) & 7)) { 1341da177e4SLinus Torvalds dsr = (value & STATUS_CABLE_DSR) ? ", DSR ON" : 1351da177e4SLinus Torvalds ", DSR off"; 1361da177e4SLinus Torvalds dcd = (value & STATUS_CABLE_DCD) ? ", carrier ON" : 1371da177e4SLinus Torvalds ", carrier off"; 1381da177e4SLinus Torvalds } 1391da177e4SLinus Torvalds dte = (value & STATUS_CABLE_DCE) ? " DCE" : " DTE"; 1401da177e4SLinus Torvalds } 14112a3bfefSJoe Perches netdev_info(port->dev, "%s%s module, %s cable%s%s\n", 14212a3bfefSJoe Perches pm, dte, cable, dsr, dcd); 1431da177e4SLinus Torvalds 144c2ce9204SKrzysztof Halasa if (value & STATUS_CABLE_DCD) 145c2ce9204SKrzysztof Halasa netif_carrier_on(port->dev); 146c2ce9204SKrzysztof Halasa else 147c2ce9204SKrzysztof Halasa netif_carrier_off(port->dev); 1481da177e4SLinus Torvalds } 1491da177e4SLinus Torvalds 1501da177e4SLinus Torvalds /* Transmit complete interrupt service */ 151db569581SHimangi Saraogi static inline void wanxl_tx_intr(struct port *port) 1521da177e4SLinus Torvalds { 1531da177e4SLinus Torvalds struct net_device *dev = port->dev; 154*f0328a19SPeng Li 1551da177e4SLinus Torvalds while (1) { 1561da177e4SLinus Torvalds desc_t *desc = &get_status(port)->tx_descs[port->tx_in]; 1571da177e4SLinus Torvalds struct sk_buff *skb = port->tx_skbs[port->tx_in]; 1581da177e4SLinus Torvalds 1591da177e4SLinus Torvalds switch (desc->stat) { 1601da177e4SLinus Torvalds case PACKET_FULL: 1611da177e4SLinus Torvalds case PACKET_EMPTY: 1621da177e4SLinus Torvalds netif_wake_queue(dev); 1631da177e4SLinus Torvalds return; 1641da177e4SLinus Torvalds 1651da177e4SLinus Torvalds case PACKET_UNDERRUN: 166198191c4SKrzysztof Halasa dev->stats.tx_errors++; 167198191c4SKrzysztof Halasa dev->stats.tx_fifo_errors++; 1681da177e4SLinus Torvalds break; 1691da177e4SLinus Torvalds 1701da177e4SLinus Torvalds default: 171198191c4SKrzysztof Halasa dev->stats.tx_packets++; 172198191c4SKrzysztof Halasa dev->stats.tx_bytes += skb->len; 1731da177e4SLinus Torvalds } 1741da177e4SLinus Torvalds desc->stat = PACKET_EMPTY; /* Free descriptor */ 17524dd377aSChristophe JAILLET dma_unmap_single(&port->card->pdev->dev, desc->address, 17624dd377aSChristophe JAILLET skb->len, DMA_TO_DEVICE); 17773634c08SYang Wei dev_consume_skb_irq(skb); 1781da177e4SLinus Torvalds port->tx_in = (port->tx_in + 1) % TX_BUFFERS; 1791da177e4SLinus Torvalds } 1801da177e4SLinus Torvalds } 1811da177e4SLinus Torvalds 1821da177e4SLinus Torvalds /* Receive complete interrupt service */ 183db569581SHimangi Saraogi static inline void wanxl_rx_intr(struct card *card) 1841da177e4SLinus Torvalds { 1851da177e4SLinus Torvalds desc_t *desc; 186*f0328a19SPeng Li 1871da177e4SLinus Torvalds while (desc = &card->status->rx_descs[card->rx_in], 1881da177e4SLinus Torvalds desc->stat != PACKET_EMPTY) { 1891da177e4SLinus Torvalds if ((desc->stat & PACKET_PORT_MASK) > card->n_ports) 19012a3bfefSJoe Perches pr_crit("%s: received packet for nonexistent port\n", 19112a3bfefSJoe Perches pci_name(card->pdev)); 1921da177e4SLinus Torvalds else { 1931da177e4SLinus Torvalds struct sk_buff *skb = card->rx_skbs[card->rx_in]; 194db569581SHimangi Saraogi struct port *port = &card->ports[desc->stat & 1951da177e4SLinus Torvalds PACKET_PORT_MASK]; 1961da177e4SLinus Torvalds struct net_device *dev = port->dev; 1971da177e4SLinus Torvalds 1981da177e4SLinus Torvalds if (!skb) 199198191c4SKrzysztof Halasa dev->stats.rx_dropped++; 2001da177e4SLinus Torvalds else { 20124dd377aSChristophe JAILLET dma_unmap_single(&card->pdev->dev, 20224dd377aSChristophe JAILLET desc->address, BUFFER_LENGTH, 20324dd377aSChristophe JAILLET DMA_FROM_DEVICE); 2041da177e4SLinus Torvalds skb_put(skb, desc->length); 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds #ifdef DEBUG_PKT 2071da177e4SLinus Torvalds printk(KERN_DEBUG "%s RX(%i):", dev->name, 2081da177e4SLinus Torvalds skb->len); 2091da177e4SLinus Torvalds debug_frame(skb); 2101da177e4SLinus Torvalds #endif 211198191c4SKrzysztof Halasa dev->stats.rx_packets++; 212198191c4SKrzysztof Halasa dev->stats.rx_bytes += skb->len; 2131da177e4SLinus Torvalds skb->protocol = hdlc_type_trans(skb, dev); 2141da177e4SLinus Torvalds netif_rx(skb); 2151da177e4SLinus Torvalds skb = NULL; 2161da177e4SLinus Torvalds } 2171da177e4SLinus Torvalds 2181da177e4SLinus Torvalds if (!skb) { 2191da177e4SLinus Torvalds skb = dev_alloc_skb(BUFFER_LENGTH); 2201da177e4SLinus Torvalds desc->address = skb ? 22124dd377aSChristophe JAILLET dma_map_single(&card->pdev->dev, 22224dd377aSChristophe JAILLET skb->data, 2231da177e4SLinus Torvalds BUFFER_LENGTH, 22424dd377aSChristophe JAILLET DMA_FROM_DEVICE) : 0; 2251da177e4SLinus Torvalds card->rx_skbs[card->rx_in] = skb; 2261da177e4SLinus Torvalds } 2271da177e4SLinus Torvalds } 2281da177e4SLinus Torvalds desc->stat = PACKET_EMPTY; /* Free descriptor */ 2291da177e4SLinus Torvalds card->rx_in = (card->rx_in + 1) % RX_QUEUE_LENGTH; 2301da177e4SLinus Torvalds } 2311da177e4SLinus Torvalds } 2321da177e4SLinus Torvalds 2337d12e780SDavid Howells static irqreturn_t wanxl_intr(int irq, void *dev_id) 2341da177e4SLinus Torvalds { 235db569581SHimangi Saraogi struct card *card = dev_id; 2361da177e4SLinus Torvalds int i; 2371da177e4SLinus Torvalds u32 stat; 2381da177e4SLinus Torvalds int handled = 0; 2391da177e4SLinus Torvalds 2401da177e4SLinus Torvalds while((stat = readl(card->plx + PLX_DOORBELL_FROM_CARD)) != 0) { 2411da177e4SLinus Torvalds handled = 1; 2421da177e4SLinus Torvalds writel(stat, card->plx + PLX_DOORBELL_FROM_CARD); 2431da177e4SLinus Torvalds 2441da177e4SLinus Torvalds for (i = 0; i < card->n_ports; i++) { 2451da177e4SLinus Torvalds if (stat & (1 << (DOORBELL_FROM_CARD_TX_0 + i))) 2461da177e4SLinus Torvalds wanxl_tx_intr(&card->ports[i]); 2471da177e4SLinus Torvalds if (stat & (1 << (DOORBELL_FROM_CARD_CABLE_0 + i))) 2481da177e4SLinus Torvalds wanxl_cable_intr(&card->ports[i]); 2491da177e4SLinus Torvalds } 2501da177e4SLinus Torvalds if (stat & (1 << DOORBELL_FROM_CARD_RX)) 2511da177e4SLinus Torvalds wanxl_rx_intr(card); 2521da177e4SLinus Torvalds } 2531da177e4SLinus Torvalds 2541da177e4SLinus Torvalds return IRQ_RETVAL(handled); 2551da177e4SLinus Torvalds } 2561da177e4SLinus Torvalds 257d71a6749SStephen Hemminger static netdev_tx_t wanxl_xmit(struct sk_buff *skb, struct net_device *dev) 2581da177e4SLinus Torvalds { 259db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 2601da177e4SLinus Torvalds desc_t *desc; 2611da177e4SLinus Torvalds 2621da177e4SLinus Torvalds spin_lock(&port->lock); 2631da177e4SLinus Torvalds 2641da177e4SLinus Torvalds desc = &get_status(port)->tx_descs[port->tx_out]; 2651da177e4SLinus Torvalds if (desc->stat != PACKET_EMPTY) { 2661da177e4SLinus Torvalds /* should never happen - previous xmit should stop queue */ 2671da177e4SLinus Torvalds #ifdef DEBUG_PKT 2681da177e4SLinus Torvalds printk(KERN_DEBUG "%s: transmitter buffer full\n", dev->name); 2691da177e4SLinus Torvalds #endif 2701da177e4SLinus Torvalds netif_stop_queue(dev); 2710311ee22SDan Carpenter spin_unlock(&port->lock); 2725b548140SPatrick McHardy return NETDEV_TX_BUSY; /* request packet to be queued */ 2731da177e4SLinus Torvalds } 2741da177e4SLinus Torvalds 2751da177e4SLinus Torvalds #ifdef DEBUG_PKT 2761da177e4SLinus Torvalds printk(KERN_DEBUG "%s TX(%i):", dev->name, skb->len); 2771da177e4SLinus Torvalds debug_frame(skb); 2781da177e4SLinus Torvalds #endif 2791da177e4SLinus Torvalds 2801da177e4SLinus Torvalds port->tx_skbs[port->tx_out] = skb; 28124dd377aSChristophe JAILLET desc->address = dma_map_single(&port->card->pdev->dev, skb->data, 28224dd377aSChristophe JAILLET skb->len, DMA_TO_DEVICE); 2831da177e4SLinus Torvalds desc->length = skb->len; 2841da177e4SLinus Torvalds desc->stat = PACKET_FULL; 2851da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_TX_0 + port->node), 2861da177e4SLinus Torvalds port->card->plx + PLX_DOORBELL_TO_CARD); 2871da177e4SLinus Torvalds 2881da177e4SLinus Torvalds port->tx_out = (port->tx_out + 1) % TX_BUFFERS; 2891da177e4SLinus Torvalds 2901da177e4SLinus Torvalds if (get_status(port)->tx_descs[port->tx_out].stat != PACKET_EMPTY) { 2911da177e4SLinus Torvalds netif_stop_queue(dev); 2921da177e4SLinus Torvalds #ifdef DEBUG_PKT 2931da177e4SLinus Torvalds printk(KERN_DEBUG "%s: transmitter buffer full\n", dev->name); 2941da177e4SLinus Torvalds #endif 2951da177e4SLinus Torvalds } 2961da177e4SLinus Torvalds 2971da177e4SLinus Torvalds spin_unlock(&port->lock); 298ec634fe3SPatrick McHardy return NETDEV_TX_OK; 2991da177e4SLinus Torvalds } 3001da177e4SLinus Torvalds 3011da177e4SLinus Torvalds static int wanxl_attach(struct net_device *dev, unsigned short encoding, 3021da177e4SLinus Torvalds unsigned short parity) 3031da177e4SLinus Torvalds { 304db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 3051da177e4SLinus Torvalds 3061da177e4SLinus Torvalds if (encoding != ENCODING_NRZ && 3071da177e4SLinus Torvalds encoding != ENCODING_NRZI) 3081da177e4SLinus Torvalds return -EINVAL; 3091da177e4SLinus Torvalds 3101da177e4SLinus Torvalds if (parity != PARITY_NONE && 3111da177e4SLinus Torvalds parity != PARITY_CRC32_PR1_CCITT && 3121da177e4SLinus Torvalds parity != PARITY_CRC16_PR1_CCITT && 3131da177e4SLinus Torvalds parity != PARITY_CRC32_PR0_CCITT && 3141da177e4SLinus Torvalds parity != PARITY_CRC16_PR0_CCITT) 3151da177e4SLinus Torvalds return -EINVAL; 3161da177e4SLinus Torvalds 3171da177e4SLinus Torvalds get_status(port)->encoding = encoding; 3181da177e4SLinus Torvalds get_status(port)->parity = parity; 3191da177e4SLinus Torvalds return 0; 3201da177e4SLinus Torvalds } 3211da177e4SLinus Torvalds 3221da177e4SLinus Torvalds static int wanxl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 3231da177e4SLinus Torvalds { 3241da177e4SLinus Torvalds const size_t size = sizeof(sync_serial_settings); 3251da177e4SLinus Torvalds sync_serial_settings line; 326db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 3271da177e4SLinus Torvalds 3281da177e4SLinus Torvalds if (cmd != SIOCWANDEV) 3291da177e4SLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 3301da177e4SLinus Torvalds 3311da177e4SLinus Torvalds switch (ifr->ifr_settings.type) { 3321da177e4SLinus Torvalds case IF_GET_IFACE: 3331da177e4SLinus Torvalds ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL; 3341da177e4SLinus Torvalds if (ifr->ifr_settings.size < size) { 3351da177e4SLinus Torvalds ifr->ifr_settings.size = size; /* data size wanted */ 3361da177e4SLinus Torvalds return -ENOBUFS; 3371da177e4SLinus Torvalds } 3382b13d06cSSalva Peiró memset(&line, 0, sizeof(line)); 3391da177e4SLinus Torvalds line.clock_type = get_status(port)->clocking; 3401da177e4SLinus Torvalds line.clock_rate = 0; 3411da177e4SLinus Torvalds line.loopback = 0; 3421da177e4SLinus Torvalds 3431da177e4SLinus Torvalds if (copy_to_user(ifr->ifr_settings.ifs_ifsu.sync, &line, size)) 3441da177e4SLinus Torvalds return -EFAULT; 3451da177e4SLinus Torvalds return 0; 3461da177e4SLinus Torvalds 3471da177e4SLinus Torvalds case IF_IFACE_SYNC_SERIAL: 3481da177e4SLinus Torvalds if (!capable(CAP_NET_ADMIN)) 3491da177e4SLinus Torvalds return -EPERM; 3501da177e4SLinus Torvalds if (dev->flags & IFF_UP) 3511da177e4SLinus Torvalds return -EBUSY; 3521da177e4SLinus Torvalds 3531da177e4SLinus Torvalds if (copy_from_user(&line, ifr->ifr_settings.ifs_ifsu.sync, 3541da177e4SLinus Torvalds size)) 3551da177e4SLinus Torvalds return -EFAULT; 3561da177e4SLinus Torvalds 3571da177e4SLinus Torvalds if (line.clock_type != CLOCK_EXT && 3581da177e4SLinus Torvalds line.clock_type != CLOCK_TXFROMRX) 3591da177e4SLinus Torvalds return -EINVAL; /* No such clock setting */ 3601da177e4SLinus Torvalds 3611da177e4SLinus Torvalds if (line.loopback != 0) 3621da177e4SLinus Torvalds return -EINVAL; 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds get_status(port)->clocking = line.clock_type; 3651da177e4SLinus Torvalds return 0; 3661da177e4SLinus Torvalds 3671da177e4SLinus Torvalds default: 3681da177e4SLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 3691da177e4SLinus Torvalds } 3701da177e4SLinus Torvalds } 3711da177e4SLinus Torvalds 3721da177e4SLinus Torvalds static int wanxl_open(struct net_device *dev) 3731da177e4SLinus Torvalds { 374db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 3751da177e4SLinus Torvalds u8 __iomem *dbr = port->card->plx + PLX_DOORBELL_TO_CARD; 3761da177e4SLinus Torvalds unsigned long timeout; 3771da177e4SLinus Torvalds int i; 3781da177e4SLinus Torvalds 3791da177e4SLinus Torvalds if (get_status(port)->open) { 38012a3bfefSJoe Perches netdev_err(dev, "port already open\n"); 3811da177e4SLinus Torvalds return -EIO; 3821da177e4SLinus Torvalds } 3831da177e4SLinus Torvalds if ((i = hdlc_open(dev)) != 0) 3841da177e4SLinus Torvalds return i; 3851da177e4SLinus Torvalds 3861da177e4SLinus Torvalds port->tx_in = port->tx_out = 0; 3871da177e4SLinus Torvalds for (i = 0; i < TX_BUFFERS; i++) 3881da177e4SLinus Torvalds get_status(port)->tx_descs[i].stat = PACKET_EMPTY; 3891da177e4SLinus Torvalds /* signal the card */ 3901da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_OPEN_0 + port->node), dbr); 3911da177e4SLinus Torvalds 3921da177e4SLinus Torvalds timeout = jiffies + HZ; 393d157e023SHannes Eder do { 3941da177e4SLinus Torvalds if (get_status(port)->open) { 3951da177e4SLinus Torvalds netif_start_queue(dev); 3961da177e4SLinus Torvalds return 0; 3971da177e4SLinus Torvalds } 398d157e023SHannes Eder } while (time_after(timeout, jiffies)); 3991da177e4SLinus Torvalds 40012a3bfefSJoe Perches netdev_err(dev, "unable to open port\n"); 4011da177e4SLinus Torvalds /* ask the card to close the port, should it be still alive */ 4021da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_CLOSE_0 + port->node), dbr); 4031da177e4SLinus Torvalds return -EFAULT; 4041da177e4SLinus Torvalds } 4051da177e4SLinus Torvalds 4061da177e4SLinus Torvalds static int wanxl_close(struct net_device *dev) 4071da177e4SLinus Torvalds { 408db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 4091da177e4SLinus Torvalds unsigned long timeout; 4101da177e4SLinus Torvalds int i; 4111da177e4SLinus Torvalds 4121da177e4SLinus Torvalds hdlc_close(dev); 4131da177e4SLinus Torvalds /* signal the card */ 4141da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_CLOSE_0 + port->node), 4151da177e4SLinus Torvalds port->card->plx + PLX_DOORBELL_TO_CARD); 4161da177e4SLinus Torvalds 4171da177e4SLinus Torvalds timeout = jiffies + HZ; 418d157e023SHannes Eder do { 4191da177e4SLinus Torvalds if (!get_status(port)->open) 4201da177e4SLinus Torvalds break; 421d157e023SHannes Eder } while (time_after(timeout, jiffies)); 4221da177e4SLinus Torvalds 4231da177e4SLinus Torvalds if (get_status(port)->open) 42412a3bfefSJoe Perches netdev_err(dev, "unable to close port\n"); 4251da177e4SLinus Torvalds 4261da177e4SLinus Torvalds netif_stop_queue(dev); 4271da177e4SLinus Torvalds 4281da177e4SLinus Torvalds for (i = 0; i < TX_BUFFERS; i++) { 4291da177e4SLinus Torvalds desc_t *desc = &get_status(port)->tx_descs[i]; 4301da177e4SLinus Torvalds 4311da177e4SLinus Torvalds if (desc->stat != PACKET_EMPTY) { 4321da177e4SLinus Torvalds desc->stat = PACKET_EMPTY; 43324dd377aSChristophe JAILLET dma_unmap_single(&port->card->pdev->dev, 43424dd377aSChristophe JAILLET desc->address, port->tx_skbs[i]->len, 43524dd377aSChristophe JAILLET DMA_TO_DEVICE); 4361da177e4SLinus Torvalds dev_kfree_skb(port->tx_skbs[i]); 4371da177e4SLinus Torvalds } 4381da177e4SLinus Torvalds } 4391da177e4SLinus Torvalds return 0; 4401da177e4SLinus Torvalds } 4411da177e4SLinus Torvalds 4421da177e4SLinus Torvalds static struct net_device_stats *wanxl_get_stats(struct net_device *dev) 4431da177e4SLinus Torvalds { 444db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 4451da177e4SLinus Torvalds 446198191c4SKrzysztof Halasa dev->stats.rx_over_errors = get_status(port)->rx_overruns; 447198191c4SKrzysztof Halasa dev->stats.rx_frame_errors = get_status(port)->rx_frame_errors; 448198191c4SKrzysztof Halasa dev->stats.rx_errors = dev->stats.rx_over_errors + 449198191c4SKrzysztof Halasa dev->stats.rx_frame_errors; 450198191c4SKrzysztof Halasa return &dev->stats; 4511da177e4SLinus Torvalds } 4521da177e4SLinus Torvalds 453db569581SHimangi Saraogi static int wanxl_puts_command(struct card *card, u32 cmd) 4541da177e4SLinus Torvalds { 4551da177e4SLinus Torvalds unsigned long timeout = jiffies + 5 * HZ; 4561da177e4SLinus Torvalds 4571da177e4SLinus Torvalds writel(cmd, card->plx + PLX_MAILBOX_1); 4581da177e4SLinus Torvalds do { 4591da177e4SLinus Torvalds if (readl(card->plx + PLX_MAILBOX_1) == 0) 4601da177e4SLinus Torvalds return 0; 4611da177e4SLinus Torvalds 4621da177e4SLinus Torvalds schedule(); 4631da177e4SLinus Torvalds }while (time_after(timeout, jiffies)); 4641da177e4SLinus Torvalds 4651da177e4SLinus Torvalds return -1; 4661da177e4SLinus Torvalds } 4671da177e4SLinus Torvalds 468db569581SHimangi Saraogi static void wanxl_reset(struct card *card) 4691da177e4SLinus Torvalds { 4701da177e4SLinus Torvalds u32 old_value = readl(card->plx + PLX_CONTROL) & ~PLX_CTL_RESET; 4711da177e4SLinus Torvalds 4721da177e4SLinus Torvalds writel(0x80, card->plx + PLX_MAILBOX_0); 4731da177e4SLinus Torvalds writel(old_value | PLX_CTL_RESET, card->plx + PLX_CONTROL); 4741da177e4SLinus Torvalds readl(card->plx + PLX_CONTROL); /* wait for posted write */ 4751da177e4SLinus Torvalds udelay(1); 4761da177e4SLinus Torvalds writel(old_value, card->plx + PLX_CONTROL); 4771da177e4SLinus Torvalds readl(card->plx + PLX_CONTROL); /* wait for posted write */ 4781da177e4SLinus Torvalds } 4791da177e4SLinus Torvalds 4801da177e4SLinus Torvalds static void wanxl_pci_remove_one(struct pci_dev *pdev) 4811da177e4SLinus Torvalds { 482db569581SHimangi Saraogi struct card *card = pci_get_drvdata(pdev); 4831da177e4SLinus Torvalds int i; 4841da177e4SLinus Torvalds 4851da177e4SLinus Torvalds for (i = 0; i < card->n_ports; i++) { 4861da177e4SLinus Torvalds unregister_hdlc_device(card->ports[i].dev); 4871da177e4SLinus Torvalds free_netdev(card->ports[i].dev); 4881da177e4SLinus Torvalds } 4891da177e4SLinus Torvalds 4901da177e4SLinus Torvalds /* unregister and free all host resources */ 4911da177e4SLinus Torvalds if (card->irq) 4921da177e4SLinus Torvalds free_irq(card->irq, card); 4931da177e4SLinus Torvalds 4941da177e4SLinus Torvalds wanxl_reset(card); 4951da177e4SLinus Torvalds 4961da177e4SLinus Torvalds for (i = 0; i < RX_QUEUE_LENGTH; i++) 4971da177e4SLinus Torvalds if (card->rx_skbs[i]) { 49824dd377aSChristophe JAILLET dma_unmap_single(&card->pdev->dev, 4991da177e4SLinus Torvalds card->status->rx_descs[i].address, 50024dd377aSChristophe JAILLET BUFFER_LENGTH, DMA_FROM_DEVICE); 5011da177e4SLinus Torvalds dev_kfree_skb(card->rx_skbs[i]); 5021da177e4SLinus Torvalds } 5031da177e4SLinus Torvalds 5041da177e4SLinus Torvalds if (card->plx) 5051da177e4SLinus Torvalds iounmap(card->plx); 5061da177e4SLinus Torvalds 5071da177e4SLinus Torvalds if (card->status) 50824dd377aSChristophe JAILLET dma_free_coherent(&pdev->dev, sizeof(struct card_status), 5091da177e4SLinus Torvalds card->status, card->status_address); 5101da177e4SLinus Torvalds 5111da177e4SLinus Torvalds pci_release_regions(pdev); 5121da177e4SLinus Torvalds pci_disable_device(pdev); 5131da177e4SLinus Torvalds kfree(card); 5141da177e4SLinus Torvalds } 5151da177e4SLinus Torvalds 5161da177e4SLinus Torvalds #include "wanxlfw.inc" 5171da177e4SLinus Torvalds 518991990a1SKrzysztof Hałasa static const struct net_device_ops wanxl_ops = { 519991990a1SKrzysztof Hałasa .ndo_open = wanxl_open, 520991990a1SKrzysztof Hałasa .ndo_stop = wanxl_close, 521991990a1SKrzysztof Hałasa .ndo_start_xmit = hdlc_start_xmit, 522991990a1SKrzysztof Hałasa .ndo_do_ioctl = wanxl_ioctl, 523991990a1SKrzysztof Hałasa .ndo_get_stats = wanxl_get_stats, 524991990a1SKrzysztof Hałasa }; 525991990a1SKrzysztof Hałasa 526aeea6bbfSBill Pemberton static int wanxl_pci_init_one(struct pci_dev *pdev, 5271da177e4SLinus Torvalds const struct pci_device_id *ent) 5281da177e4SLinus Torvalds { 529db569581SHimangi Saraogi struct card *card; 5301da177e4SLinus Torvalds u32 ramsize, stat; 5311da177e4SLinus Torvalds unsigned long timeout; 5321da177e4SLinus Torvalds u32 plx_phy; /* PLX PCI base address */ 5331da177e4SLinus Torvalds u32 mem_phy; /* memory PCI base addr */ 5341da177e4SLinus Torvalds u8 __iomem *mem; /* memory virtual base addr */ 535a3deec5bSGustavo A. R. Silva int i, ports; 5361da177e4SLinus Torvalds 5371da177e4SLinus Torvalds #ifndef MODULE 53812a3bfefSJoe Perches pr_info_once("%s\n", version); 5391da177e4SLinus Torvalds #endif 5401da177e4SLinus Torvalds 5411da177e4SLinus Torvalds i = pci_enable_device(pdev); 5421da177e4SLinus Torvalds if (i) 5431da177e4SLinus Torvalds return i; 5441da177e4SLinus Torvalds 5451da177e4SLinus Torvalds /* QUICC can only access first 256 MB of host RAM directly, 5461da177e4SLinus Torvalds but PLX9060 DMA does 32-bits for actual packet data transfers */ 5471da177e4SLinus Torvalds 5481da177e4SLinus Torvalds /* FIXME when PCI/DMA subsystems are fixed. 5491da177e4SLinus Torvalds We set both dma_mask and consistent_dma_mask to 28 bits 5501da177e4SLinus Torvalds and pray pci_alloc_consistent() will use this info. It should 5511da177e4SLinus Torvalds work on most platforms */ 55224dd377aSChristophe JAILLET if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(28)) || 55324dd377aSChristophe JAILLET dma_set_mask(&pdev->dev, DMA_BIT_MASK(28))) { 55412a3bfefSJoe Perches pr_err("No usable DMA configuration\n"); 5557e074af2SSaurabh Sengar pci_disable_device(pdev); 5561da177e4SLinus Torvalds return -EIO; 5571da177e4SLinus Torvalds } 5581da177e4SLinus Torvalds 5591da177e4SLinus Torvalds i = pci_request_regions(pdev, "wanXL"); 5601da177e4SLinus Torvalds if (i) { 5611da177e4SLinus Torvalds pci_disable_device(pdev); 5621da177e4SLinus Torvalds return i; 5631da177e4SLinus Torvalds } 5641da177e4SLinus Torvalds 5651da177e4SLinus Torvalds switch (pdev->device) { 5661da177e4SLinus Torvalds case PCI_DEVICE_ID_SBE_WANXL100: ports = 1; break; 5671da177e4SLinus Torvalds case PCI_DEVICE_ID_SBE_WANXL200: ports = 2; break; 5681da177e4SLinus Torvalds default: ports = 4; 5691da177e4SLinus Torvalds } 5701da177e4SLinus Torvalds 571a3deec5bSGustavo A. R. Silva card = kzalloc(struct_size(card, ports, ports), GFP_KERNEL); 5721da177e4SLinus Torvalds if (card == NULL) { 5731da177e4SLinus Torvalds pci_release_regions(pdev); 5741da177e4SLinus Torvalds pci_disable_device(pdev); 5751da177e4SLinus Torvalds return -ENOBUFS; 5761da177e4SLinus Torvalds } 5771da177e4SLinus Torvalds 5781da177e4SLinus Torvalds pci_set_drvdata(pdev, card); 5791da177e4SLinus Torvalds card->pdev = pdev; 5801da177e4SLinus Torvalds 58124dd377aSChristophe JAILLET card->status = dma_alloc_coherent(&pdev->dev, 582db569581SHimangi Saraogi sizeof(struct card_status), 58324dd377aSChristophe JAILLET &card->status_address, GFP_KERNEL); 5841da177e4SLinus Torvalds if (card->status == NULL) { 5851da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 5861da177e4SLinus Torvalds return -ENOBUFS; 5871da177e4SLinus Torvalds } 5881da177e4SLinus Torvalds 5891da177e4SLinus Torvalds #ifdef DEBUG_PCI 5901da177e4SLinus Torvalds printk(KERN_DEBUG "wanXL %s: pci_alloc_consistent() returned memory" 5911da177e4SLinus Torvalds " at 0x%LX\n", pci_name(pdev), 5921da177e4SLinus Torvalds (unsigned long long)card->status_address); 5931da177e4SLinus Torvalds #endif 5941da177e4SLinus Torvalds 5951da177e4SLinus Torvalds /* FIXME when PCI/DMA subsystems are fixed. 5961da177e4SLinus Torvalds We set both dma_mask and consistent_dma_mask back to 32 bits 5971da177e4SLinus Torvalds to indicate the card can do 32-bit DMA addressing */ 59824dd377aSChristophe JAILLET if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)) || 59924dd377aSChristophe JAILLET dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) { 60012a3bfefSJoe Perches pr_err("No usable DMA configuration\n"); 6011da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6021da177e4SLinus Torvalds return -EIO; 6031da177e4SLinus Torvalds } 6041da177e4SLinus Torvalds 6051da177e4SLinus Torvalds /* set up PLX mapping */ 6061da177e4SLinus Torvalds plx_phy = pci_resource_start(pdev, 0); 6074446065aSKrzysztof Halasa 6084bdc0d67SChristoph Hellwig card->plx = ioremap(plx_phy, 0x70); 6094446065aSKrzysztof Halasa if (!card->plx) { 61012a3bfefSJoe Perches pr_err("ioremap() failed\n"); 6114446065aSKrzysztof Halasa wanxl_pci_remove_one(pdev); 6124446065aSKrzysztof Halasa return -EFAULT; 6134446065aSKrzysztof Halasa } 6141da177e4SLinus Torvalds 6151da177e4SLinus Torvalds #if RESET_WHILE_LOADING 6161da177e4SLinus Torvalds wanxl_reset(card); 6171da177e4SLinus Torvalds #endif 6181da177e4SLinus Torvalds 6191da177e4SLinus Torvalds timeout = jiffies + 20 * HZ; 6201da177e4SLinus Torvalds while ((stat = readl(card->plx + PLX_MAILBOX_0)) != 0) { 6211da177e4SLinus Torvalds if (time_before(timeout, jiffies)) { 62212a3bfefSJoe Perches pr_warn("%s: timeout waiting for PUTS to complete\n", 62312a3bfefSJoe Perches pci_name(pdev)); 6241da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6251da177e4SLinus Torvalds return -ENODEV; 6261da177e4SLinus Torvalds } 6271da177e4SLinus Torvalds 6281da177e4SLinus Torvalds switch(stat & 0xC0) { 6291da177e4SLinus Torvalds case 0x00: /* hmm - PUTS completed with non-zero code? */ 6301da177e4SLinus Torvalds case 0x80: /* PUTS still testing the hardware */ 6311da177e4SLinus Torvalds break; 6321da177e4SLinus Torvalds 6331da177e4SLinus Torvalds default: 63412a3bfefSJoe Perches pr_warn("%s: PUTS test 0x%X failed\n", 63512a3bfefSJoe Perches pci_name(pdev), stat & 0x30); 6361da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6371da177e4SLinus Torvalds return -ENODEV; 6381da177e4SLinus Torvalds } 6391da177e4SLinus Torvalds 6401da177e4SLinus Torvalds schedule(); 6411da177e4SLinus Torvalds } 6421da177e4SLinus Torvalds 6431da177e4SLinus Torvalds /* get on-board memory size (PUTS detects no more than 4 MB) */ 6441da177e4SLinus Torvalds ramsize = readl(card->plx + PLX_MAILBOX_2) & MBX2_MEMSZ_MASK; 6451da177e4SLinus Torvalds 6461da177e4SLinus Torvalds /* set up on-board RAM mapping */ 6471da177e4SLinus Torvalds mem_phy = pci_resource_start(pdev, 2); 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvalds /* sanity check the board's reported memory size */ 6501da177e4SLinus Torvalds if (ramsize < BUFFERS_ADDR + 6511da177e4SLinus Torvalds (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * ports) { 65212a3bfefSJoe Perches pr_warn("%s: no enough on-board RAM (%u bytes detected, %u bytes required)\n", 65312a3bfefSJoe Perches pci_name(pdev), ramsize, 65412a3bfefSJoe Perches BUFFERS_ADDR + 6551da177e4SLinus Torvalds (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * ports); 6561da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6571da177e4SLinus Torvalds return -ENODEV; 6581da177e4SLinus Torvalds } 6591da177e4SLinus Torvalds 6601da177e4SLinus Torvalds if (wanxl_puts_command(card, MBX1_CMD_BSWAP)) { 66112a3bfefSJoe Perches pr_warn("%s: unable to Set Byte Swap Mode\n", pci_name(pdev)); 6621da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6631da177e4SLinus Torvalds return -ENODEV; 6641da177e4SLinus Torvalds } 6651da177e4SLinus Torvalds 6661da177e4SLinus Torvalds for (i = 0; i < RX_QUEUE_LENGTH; i++) { 6671da177e4SLinus Torvalds struct sk_buff *skb = dev_alloc_skb(BUFFER_LENGTH); 668*f0328a19SPeng Li 6691da177e4SLinus Torvalds card->rx_skbs[i] = skb; 6701da177e4SLinus Torvalds if (skb) 6711da177e4SLinus Torvalds card->status->rx_descs[i].address = 67224dd377aSChristophe JAILLET dma_map_single(&card->pdev->dev, skb->data, 67324dd377aSChristophe JAILLET BUFFER_LENGTH, DMA_FROM_DEVICE); 6741da177e4SLinus Torvalds } 6751da177e4SLinus Torvalds 6764bdc0d67SChristoph Hellwig mem = ioremap(mem_phy, PDM_OFFSET + sizeof(firmware)); 6774446065aSKrzysztof Halasa if (!mem) { 67812a3bfefSJoe Perches pr_err("ioremap() failed\n"); 6794446065aSKrzysztof Halasa wanxl_pci_remove_one(pdev); 6804446065aSKrzysztof Halasa return -EFAULT; 6814446065aSKrzysztof Halasa } 6824446065aSKrzysztof Halasa 6831da177e4SLinus Torvalds for (i = 0; i < sizeof(firmware); i += 4) 68490458401SAl Viro writel(ntohl(*(__be32 *)(firmware + i)), mem + PDM_OFFSET + i); 6851da177e4SLinus Torvalds 6861da177e4SLinus Torvalds for (i = 0; i < ports; i++) 6871da177e4SLinus Torvalds writel(card->status_address + 6881da177e4SLinus Torvalds (void *)&card->status->port_status[i] - 6891da177e4SLinus Torvalds (void *)card->status, mem + PDM_OFFSET + 4 + i * 4); 6901da177e4SLinus Torvalds writel(card->status_address, mem + PDM_OFFSET + 20); 6911da177e4SLinus Torvalds writel(PDM_OFFSET, mem); 6921da177e4SLinus Torvalds iounmap(mem); 6931da177e4SLinus Torvalds 6941da177e4SLinus Torvalds writel(0, card->plx + PLX_MAILBOX_5); 6951da177e4SLinus Torvalds 6961da177e4SLinus Torvalds if (wanxl_puts_command(card, MBX1_CMD_ABORTJ)) { 69712a3bfefSJoe Perches pr_warn("%s: unable to Abort and Jump\n", pci_name(pdev)); 6981da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6991da177e4SLinus Torvalds return -ENODEV; 7001da177e4SLinus Torvalds } 7011da177e4SLinus Torvalds 7021da177e4SLinus Torvalds timeout = jiffies + 5 * HZ; 7031da177e4SLinus Torvalds do { 7041da177e4SLinus Torvalds if ((stat = readl(card->plx + PLX_MAILBOX_5)) != 0) 7051da177e4SLinus Torvalds break; 7061da177e4SLinus Torvalds schedule(); 7071da177e4SLinus Torvalds }while (time_after(timeout, jiffies)); 7081da177e4SLinus Torvalds 7091da177e4SLinus Torvalds if (!stat) { 71012a3bfefSJoe Perches pr_warn("%s: timeout while initializing card firmware\n", 71112a3bfefSJoe Perches pci_name(pdev)); 7121da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7131da177e4SLinus Torvalds return -ENODEV; 7141da177e4SLinus Torvalds } 7151da177e4SLinus Torvalds 7161da177e4SLinus Torvalds #if DETECT_RAM 7171da177e4SLinus Torvalds ramsize = stat; 7181da177e4SLinus Torvalds #endif 7191da177e4SLinus Torvalds 72012a3bfefSJoe Perches pr_info("%s: at 0x%X, %u KB of RAM at 0x%X, irq %u\n", 7211da177e4SLinus Torvalds pci_name(pdev), plx_phy, ramsize / 1024, mem_phy, pdev->irq); 7221da177e4SLinus Torvalds 7231da177e4SLinus Torvalds /* Allocate IRQ */ 7241fb9df5dSThomas Gleixner if (request_irq(pdev->irq, wanxl_intr, IRQF_SHARED, "wanXL", card)) { 72512a3bfefSJoe Perches pr_warn("%s: could not allocate IRQ%i\n", 7261da177e4SLinus Torvalds pci_name(pdev), pdev->irq); 7271da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7281da177e4SLinus Torvalds return -EBUSY; 7291da177e4SLinus Torvalds } 7301da177e4SLinus Torvalds card->irq = pdev->irq; 7311da177e4SLinus Torvalds 7321da177e4SLinus Torvalds for (i = 0; i < ports; i++) { 7331da177e4SLinus Torvalds hdlc_device *hdlc; 734db569581SHimangi Saraogi struct port *port = &card->ports[i]; 7351da177e4SLinus Torvalds struct net_device *dev = alloc_hdlcdev(port); 736*f0328a19SPeng Li 7371da177e4SLinus Torvalds if (!dev) { 73812a3bfefSJoe Perches pr_err("%s: unable to allocate memory\n", 73912a3bfefSJoe Perches pci_name(pdev)); 7401da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7411da177e4SLinus Torvalds return -ENOMEM; 7421da177e4SLinus Torvalds } 7431da177e4SLinus Torvalds 7441da177e4SLinus Torvalds port->dev = dev; 7451da177e4SLinus Torvalds hdlc = dev_to_hdlc(dev); 7461da177e4SLinus Torvalds spin_lock_init(&port->lock); 7471da177e4SLinus Torvalds dev->tx_queue_len = 50; 748991990a1SKrzysztof Hałasa dev->netdev_ops = &wanxl_ops; 7491da177e4SLinus Torvalds hdlc->attach = wanxl_attach; 7501da177e4SLinus Torvalds hdlc->xmit = wanxl_xmit; 7511da177e4SLinus Torvalds port->card = card; 7521da177e4SLinus Torvalds port->node = i; 7531da177e4SLinus Torvalds get_status(port)->clocking = CLOCK_EXT; 7541da177e4SLinus Torvalds if (register_hdlc_device(dev)) { 75512a3bfefSJoe Perches pr_err("%s: unable to register hdlc device\n", 75612a3bfefSJoe Perches pci_name(pdev)); 7571da177e4SLinus Torvalds free_netdev(dev); 7581da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7591da177e4SLinus Torvalds return -ENOBUFS; 7601da177e4SLinus Torvalds } 7611da177e4SLinus Torvalds card->n_ports++; 7621da177e4SLinus Torvalds } 7631da177e4SLinus Torvalds 76412a3bfefSJoe Perches pr_info("%s: port", pci_name(pdev)); 7651da177e4SLinus Torvalds for (i = 0; i < ports; i++) 76612a3bfefSJoe Perches pr_cont("%s #%i: %s", 76712a3bfefSJoe Perches i ? "," : "", i, card->ports[i].dev->name); 76812a3bfefSJoe Perches pr_cont("\n"); 7691da177e4SLinus Torvalds 7701da177e4SLinus Torvalds for (i = 0; i < ports; i++) 7711da177e4SLinus Torvalds wanxl_cable_intr(&card->ports[i]); /* get carrier status etc.*/ 7721da177e4SLinus Torvalds 7731da177e4SLinus Torvalds return 0; 7741da177e4SLinus Torvalds } 7751da177e4SLinus Torvalds 7769baa3c34SBenoit Taine static const struct pci_device_id wanxl_pci_tbl[] = { 7771da177e4SLinus Torvalds { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL100, PCI_ANY_ID, 7781da177e4SLinus Torvalds PCI_ANY_ID, 0, 0, 0 }, 7791da177e4SLinus Torvalds { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL200, PCI_ANY_ID, 7801da177e4SLinus Torvalds PCI_ANY_ID, 0, 0, 0 }, 7811da177e4SLinus Torvalds { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL400, PCI_ANY_ID, 7821da177e4SLinus Torvalds PCI_ANY_ID, 0, 0, 0 }, 7831da177e4SLinus Torvalds { 0, } 7841da177e4SLinus Torvalds }; 7851da177e4SLinus Torvalds 7861da177e4SLinus Torvalds static struct pci_driver wanxl_pci_driver = { 7871da177e4SLinus Torvalds .name = "wanXL", 7881da177e4SLinus Torvalds .id_table = wanxl_pci_tbl, 7891da177e4SLinus Torvalds .probe = wanxl_pci_init_one, 7901da177e4SLinus Torvalds .remove = wanxl_pci_remove_one, 7911da177e4SLinus Torvalds }; 7921da177e4SLinus Torvalds 7931da177e4SLinus Torvalds static int __init wanxl_init_module(void) 7941da177e4SLinus Torvalds { 7951da177e4SLinus Torvalds #ifdef MODULE 79612a3bfefSJoe Perches pr_info("%s\n", version); 7971da177e4SLinus Torvalds #endif 79829917620SJeff Garzik return pci_register_driver(&wanxl_pci_driver); 7991da177e4SLinus Torvalds } 8001da177e4SLinus Torvalds 8011da177e4SLinus Torvalds static void __exit wanxl_cleanup_module(void) 8021da177e4SLinus Torvalds { 8031da177e4SLinus Torvalds pci_unregister_driver(&wanxl_pci_driver); 8041da177e4SLinus Torvalds } 8051da177e4SLinus Torvalds 8061da177e4SLinus Torvalds MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>"); 8071da177e4SLinus Torvalds MODULE_DESCRIPTION("SBE Inc. wanXL serial port driver"); 8081da177e4SLinus Torvalds MODULE_LICENSE("GPL v2"); 8091da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, wanxl_pci_tbl); 8101da177e4SLinus Torvalds 8111da177e4SLinus Torvalds module_init(wanxl_init_module); 8121da177e4SLinus Torvalds module_exit(wanxl_cleanup_module); 813