11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * wanXL serial card driver for Linux 31da177e4SLinus Torvalds * host part 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Copyright (C) 2003 Krzysztof Halasa <khc@pm.waw.pl> 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify it 81da177e4SLinus Torvalds * under the terms of version 2 of the GNU General Public License 91da177e4SLinus Torvalds * as published by the Free Software Foundation. 101da177e4SLinus Torvalds * 111da177e4SLinus Torvalds * Status: 121da177e4SLinus Torvalds * - Only DTE (external clock) support with NRZ and NRZI encodings 131da177e4SLinus Torvalds * - wanXL100 will require minor driver modifications, no access to hw 141da177e4SLinus Torvalds */ 151da177e4SLinus Torvalds 1612a3bfefSJoe Perches #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 1712a3bfefSJoe Perches 181da177e4SLinus Torvalds #include <linux/module.h> 191da177e4SLinus Torvalds #include <linux/kernel.h> 201da177e4SLinus Torvalds #include <linux/slab.h> 211da177e4SLinus Torvalds #include <linux/sched.h> 221da177e4SLinus Torvalds #include <linux/types.h> 231da177e4SLinus Torvalds #include <linux/fcntl.h> 241da177e4SLinus Torvalds #include <linux/string.h> 251da177e4SLinus Torvalds #include <linux/errno.h> 261da177e4SLinus Torvalds #include <linux/init.h> 27a6b7a407SAlexey Dobriyan #include <linux/interrupt.h> 281da177e4SLinus Torvalds #include <linux/ioport.h> 291da177e4SLinus Torvalds #include <linux/netdevice.h> 301da177e4SLinus Torvalds #include <linux/hdlc.h> 311da177e4SLinus Torvalds #include <linux/pci.h> 321e7f0bd8SDomen Puncer #include <linux/dma-mapping.h> 33164006daSAl Viro #include <linux/delay.h> 341da177e4SLinus Torvalds #include <asm/io.h> 351da177e4SLinus Torvalds 361da177e4SLinus Torvalds #include "wanxl.h" 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds static const char* version = "wanXL serial card driver version: 0.48"; 391da177e4SLinus Torvalds 401da177e4SLinus Torvalds #define PLX_CTL_RESET 0x40000000 /* adapter reset */ 411da177e4SLinus Torvalds 421da177e4SLinus Torvalds #undef DEBUG_PKT 431da177e4SLinus Torvalds #undef DEBUG_PCI 441da177e4SLinus Torvalds 451da177e4SLinus Torvalds /* MAILBOX #1 - PUTS COMMANDS */ 461da177e4SLinus Torvalds #define MBX1_CMD_ABORTJ 0x85000000 /* Abort and Jump */ 471da177e4SLinus Torvalds #ifdef __LITTLE_ENDIAN 481da177e4SLinus Torvalds #define MBX1_CMD_BSWAP 0x8C000001 /* little-endian Byte Swap Mode */ 491da177e4SLinus Torvalds #else 501da177e4SLinus Torvalds #define MBX1_CMD_BSWAP 0x8C000000 /* big-endian Byte Swap Mode */ 511da177e4SLinus Torvalds #endif 521da177e4SLinus Torvalds 531da177e4SLinus Torvalds /* MAILBOX #2 - DRAM SIZE */ 541da177e4SLinus Torvalds #define MBX2_MEMSZ_MASK 0xFFFF0000 /* PUTS Memory Size Register mask */ 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds 571da177e4SLinus Torvalds typedef struct { 581da177e4SLinus Torvalds struct net_device *dev; 591da177e4SLinus Torvalds struct card_t *card; 601da177e4SLinus Torvalds spinlock_t lock; /* for wanxl_xmit */ 611da177e4SLinus Torvalds int node; /* physical port #0 - 3 */ 621da177e4SLinus Torvalds unsigned int clock_type; 631da177e4SLinus Torvalds int tx_in, tx_out; 641da177e4SLinus Torvalds struct sk_buff *tx_skbs[TX_BUFFERS]; 651da177e4SLinus Torvalds }port_t; 661da177e4SLinus Torvalds 671da177e4SLinus Torvalds 681da177e4SLinus Torvalds typedef struct { 691da177e4SLinus Torvalds desc_t rx_descs[RX_QUEUE_LENGTH]; 701da177e4SLinus Torvalds port_status_t port_status[4]; 711da177e4SLinus Torvalds }card_status_t; 721da177e4SLinus Torvalds 731da177e4SLinus Torvalds 741da177e4SLinus Torvalds typedef struct card_t { 751da177e4SLinus Torvalds int n_ports; /* 1, 2 or 4 ports */ 761da177e4SLinus Torvalds u8 irq; 771da177e4SLinus Torvalds 781da177e4SLinus Torvalds u8 __iomem *plx; /* PLX PCI9060 virtual base address */ 791da177e4SLinus Torvalds struct pci_dev *pdev; /* for pci_name(pdev) */ 801da177e4SLinus Torvalds int rx_in; 811da177e4SLinus Torvalds struct sk_buff *rx_skbs[RX_QUEUE_LENGTH]; 821da177e4SLinus Torvalds card_status_t *status; /* shared between host and card */ 831da177e4SLinus Torvalds dma_addr_t status_address; 841da177e4SLinus Torvalds port_t ports[0]; /* 1 - 4 port_t structures follow */ 851da177e4SLinus Torvalds }card_t; 861da177e4SLinus Torvalds 871da177e4SLinus Torvalds 881da177e4SLinus Torvalds 891da177e4SLinus Torvalds static inline port_t* dev_to_port(struct net_device *dev) 901da177e4SLinus Torvalds { 911da177e4SLinus Torvalds return (port_t *)dev_to_hdlc(dev)->priv; 921da177e4SLinus Torvalds } 931da177e4SLinus Torvalds 941da177e4SLinus Torvalds 951da177e4SLinus Torvalds static inline port_status_t* get_status(port_t *port) 961da177e4SLinus Torvalds { 971da177e4SLinus Torvalds return &port->card->status->port_status[port->node]; 981da177e4SLinus Torvalds } 991da177e4SLinus Torvalds 1001da177e4SLinus Torvalds 1011da177e4SLinus Torvalds #ifdef DEBUG_PCI 1021da177e4SLinus Torvalds static inline dma_addr_t pci_map_single_debug(struct pci_dev *pdev, void *ptr, 1031da177e4SLinus Torvalds size_t size, int direction) 1041da177e4SLinus Torvalds { 1051da177e4SLinus Torvalds dma_addr_t addr = pci_map_single(pdev, ptr, size, direction); 1061da177e4SLinus Torvalds if (addr + size > 0x100000000LL) 10712a3bfefSJoe Perches pr_crit("%s: pci_map_single() returned memory at 0x%llx!\n", 10812a3bfefSJoe Perches pci_name(pdev), (unsigned long long)addr); 1091da177e4SLinus Torvalds return addr; 1101da177e4SLinus Torvalds } 1111da177e4SLinus Torvalds 1121da177e4SLinus Torvalds #undef pci_map_single 1131da177e4SLinus Torvalds #define pci_map_single pci_map_single_debug 1141da177e4SLinus Torvalds #endif 1151da177e4SLinus Torvalds 1161da177e4SLinus Torvalds 1171da177e4SLinus Torvalds /* Cable and/or personality module change interrupt service */ 1181da177e4SLinus Torvalds static inline void wanxl_cable_intr(port_t *port) 1191da177e4SLinus Torvalds { 1201da177e4SLinus Torvalds u32 value = get_status(port)->cable; 1211da177e4SLinus Torvalds int valid = 1; 1221da177e4SLinus Torvalds const char *cable, *pm, *dte = "", *dsr = "", *dcd = ""; 1231da177e4SLinus Torvalds 1241da177e4SLinus Torvalds switch(value & 0x7) { 1251da177e4SLinus Torvalds case STATUS_CABLE_V35: cable = "V.35"; break; 1261da177e4SLinus Torvalds case STATUS_CABLE_X21: cable = "X.21"; break; 1271da177e4SLinus Torvalds case STATUS_CABLE_V24: cable = "V.24"; break; 1281da177e4SLinus Torvalds case STATUS_CABLE_EIA530: cable = "EIA530"; break; 1291da177e4SLinus Torvalds case STATUS_CABLE_NONE: cable = "no"; break; 1301da177e4SLinus Torvalds default: cable = "invalid"; 1311da177e4SLinus Torvalds } 1321da177e4SLinus Torvalds 1331da177e4SLinus Torvalds switch((value >> STATUS_CABLE_PM_SHIFT) & 0x7) { 1341da177e4SLinus Torvalds case STATUS_CABLE_V35: pm = "V.35"; break; 1351da177e4SLinus Torvalds case STATUS_CABLE_X21: pm = "X.21"; break; 1361da177e4SLinus Torvalds case STATUS_CABLE_V24: pm = "V.24"; break; 1371da177e4SLinus Torvalds case STATUS_CABLE_EIA530: pm = "EIA530"; break; 1381da177e4SLinus Torvalds case STATUS_CABLE_NONE: pm = "no personality"; valid = 0; break; 1391da177e4SLinus Torvalds default: pm = "invalid personality"; valid = 0; 1401da177e4SLinus Torvalds } 1411da177e4SLinus Torvalds 1421da177e4SLinus Torvalds if (valid) { 1431da177e4SLinus Torvalds if ((value & 7) == ((value >> STATUS_CABLE_PM_SHIFT) & 7)) { 1441da177e4SLinus Torvalds dsr = (value & STATUS_CABLE_DSR) ? ", DSR ON" : 1451da177e4SLinus Torvalds ", DSR off"; 1461da177e4SLinus Torvalds dcd = (value & STATUS_CABLE_DCD) ? ", carrier ON" : 1471da177e4SLinus Torvalds ", carrier off"; 1481da177e4SLinus Torvalds } 1491da177e4SLinus Torvalds dte = (value & STATUS_CABLE_DCE) ? " DCE" : " DTE"; 1501da177e4SLinus Torvalds } 15112a3bfefSJoe Perches netdev_info(port->dev, "%s%s module, %s cable%s%s\n", 15212a3bfefSJoe Perches pm, dte, cable, dsr, dcd); 1531da177e4SLinus Torvalds 154c2ce9204SKrzysztof Halasa if (value & STATUS_CABLE_DCD) 155c2ce9204SKrzysztof Halasa netif_carrier_on(port->dev); 156c2ce9204SKrzysztof Halasa else 157c2ce9204SKrzysztof Halasa netif_carrier_off(port->dev); 1581da177e4SLinus Torvalds } 1591da177e4SLinus Torvalds 1601da177e4SLinus Torvalds 1611da177e4SLinus Torvalds 1621da177e4SLinus Torvalds /* Transmit complete interrupt service */ 1631da177e4SLinus Torvalds static inline void wanxl_tx_intr(port_t *port) 1641da177e4SLinus Torvalds { 1651da177e4SLinus Torvalds struct net_device *dev = port->dev; 1661da177e4SLinus Torvalds while (1) { 1671da177e4SLinus Torvalds desc_t *desc = &get_status(port)->tx_descs[port->tx_in]; 1681da177e4SLinus Torvalds struct sk_buff *skb = port->tx_skbs[port->tx_in]; 1691da177e4SLinus Torvalds 1701da177e4SLinus Torvalds switch (desc->stat) { 1711da177e4SLinus Torvalds case PACKET_FULL: 1721da177e4SLinus Torvalds case PACKET_EMPTY: 1731da177e4SLinus Torvalds netif_wake_queue(dev); 1741da177e4SLinus Torvalds return; 1751da177e4SLinus Torvalds 1761da177e4SLinus Torvalds case PACKET_UNDERRUN: 177198191c4SKrzysztof Halasa dev->stats.tx_errors++; 178198191c4SKrzysztof Halasa dev->stats.tx_fifo_errors++; 1791da177e4SLinus Torvalds break; 1801da177e4SLinus Torvalds 1811da177e4SLinus Torvalds default: 182198191c4SKrzysztof Halasa dev->stats.tx_packets++; 183198191c4SKrzysztof Halasa dev->stats.tx_bytes += skb->len; 1841da177e4SLinus Torvalds } 1851da177e4SLinus Torvalds desc->stat = PACKET_EMPTY; /* Free descriptor */ 1861da177e4SLinus Torvalds pci_unmap_single(port->card->pdev, desc->address, skb->len, 1871da177e4SLinus Torvalds PCI_DMA_TODEVICE); 1881da177e4SLinus Torvalds dev_kfree_skb_irq(skb); 1891da177e4SLinus Torvalds port->tx_in = (port->tx_in + 1) % TX_BUFFERS; 1901da177e4SLinus Torvalds } 1911da177e4SLinus Torvalds } 1921da177e4SLinus Torvalds 1931da177e4SLinus Torvalds 1941da177e4SLinus Torvalds 1951da177e4SLinus Torvalds /* Receive complete interrupt service */ 1961da177e4SLinus Torvalds static inline void wanxl_rx_intr(card_t *card) 1971da177e4SLinus Torvalds { 1981da177e4SLinus Torvalds desc_t *desc; 1991da177e4SLinus Torvalds while (desc = &card->status->rx_descs[card->rx_in], 2001da177e4SLinus Torvalds desc->stat != PACKET_EMPTY) { 2011da177e4SLinus Torvalds if ((desc->stat & PACKET_PORT_MASK) > card->n_ports) 20212a3bfefSJoe Perches pr_crit("%s: received packet for nonexistent port\n", 20312a3bfefSJoe Perches pci_name(card->pdev)); 2041da177e4SLinus Torvalds else { 2051da177e4SLinus Torvalds struct sk_buff *skb = card->rx_skbs[card->rx_in]; 2061da177e4SLinus Torvalds port_t *port = &card->ports[desc->stat & 2071da177e4SLinus Torvalds PACKET_PORT_MASK]; 2081da177e4SLinus Torvalds struct net_device *dev = port->dev; 2091da177e4SLinus Torvalds 2101da177e4SLinus Torvalds if (!skb) 211198191c4SKrzysztof Halasa dev->stats.rx_dropped++; 2121da177e4SLinus Torvalds else { 2131da177e4SLinus Torvalds pci_unmap_single(card->pdev, desc->address, 2141da177e4SLinus Torvalds BUFFER_LENGTH, 2151da177e4SLinus Torvalds PCI_DMA_FROMDEVICE); 2161da177e4SLinus Torvalds skb_put(skb, desc->length); 2171da177e4SLinus Torvalds 2181da177e4SLinus Torvalds #ifdef DEBUG_PKT 2191da177e4SLinus Torvalds printk(KERN_DEBUG "%s RX(%i):", dev->name, 2201da177e4SLinus Torvalds skb->len); 2211da177e4SLinus Torvalds debug_frame(skb); 2221da177e4SLinus Torvalds #endif 223198191c4SKrzysztof Halasa dev->stats.rx_packets++; 224198191c4SKrzysztof Halasa dev->stats.rx_bytes += skb->len; 2251da177e4SLinus Torvalds skb->protocol = hdlc_type_trans(skb, dev); 2261da177e4SLinus Torvalds netif_rx(skb); 2271da177e4SLinus Torvalds skb = NULL; 2281da177e4SLinus Torvalds } 2291da177e4SLinus Torvalds 2301da177e4SLinus Torvalds if (!skb) { 2311da177e4SLinus Torvalds skb = dev_alloc_skb(BUFFER_LENGTH); 2321da177e4SLinus Torvalds desc->address = skb ? 2331da177e4SLinus Torvalds pci_map_single(card->pdev, skb->data, 2341da177e4SLinus Torvalds BUFFER_LENGTH, 2351da177e4SLinus Torvalds PCI_DMA_FROMDEVICE) : 0; 2361da177e4SLinus Torvalds card->rx_skbs[card->rx_in] = skb; 2371da177e4SLinus Torvalds } 2381da177e4SLinus Torvalds } 2391da177e4SLinus Torvalds desc->stat = PACKET_EMPTY; /* Free descriptor */ 2401da177e4SLinus Torvalds card->rx_in = (card->rx_in + 1) % RX_QUEUE_LENGTH; 2411da177e4SLinus Torvalds } 2421da177e4SLinus Torvalds } 2431da177e4SLinus Torvalds 2441da177e4SLinus Torvalds 2451da177e4SLinus Torvalds 2467d12e780SDavid Howells static irqreturn_t wanxl_intr(int irq, void* dev_id) 2471da177e4SLinus Torvalds { 2481da177e4SLinus Torvalds card_t *card = dev_id; 2491da177e4SLinus Torvalds int i; 2501da177e4SLinus Torvalds u32 stat; 2511da177e4SLinus Torvalds int handled = 0; 2521da177e4SLinus Torvalds 2531da177e4SLinus Torvalds 2541da177e4SLinus Torvalds while((stat = readl(card->plx + PLX_DOORBELL_FROM_CARD)) != 0) { 2551da177e4SLinus Torvalds handled = 1; 2561da177e4SLinus Torvalds writel(stat, card->plx + PLX_DOORBELL_FROM_CARD); 2571da177e4SLinus Torvalds 2581da177e4SLinus Torvalds for (i = 0; i < card->n_ports; i++) { 2591da177e4SLinus Torvalds if (stat & (1 << (DOORBELL_FROM_CARD_TX_0 + i))) 2601da177e4SLinus Torvalds wanxl_tx_intr(&card->ports[i]); 2611da177e4SLinus Torvalds if (stat & (1 << (DOORBELL_FROM_CARD_CABLE_0 + i))) 2621da177e4SLinus Torvalds wanxl_cable_intr(&card->ports[i]); 2631da177e4SLinus Torvalds } 2641da177e4SLinus Torvalds if (stat & (1 << DOORBELL_FROM_CARD_RX)) 2651da177e4SLinus Torvalds wanxl_rx_intr(card); 2661da177e4SLinus Torvalds } 2671da177e4SLinus Torvalds 2681da177e4SLinus Torvalds return IRQ_RETVAL(handled); 2691da177e4SLinus Torvalds } 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds 2721da177e4SLinus Torvalds 273d71a6749SStephen Hemminger static netdev_tx_t wanxl_xmit(struct sk_buff *skb, struct net_device *dev) 2741da177e4SLinus Torvalds { 2751da177e4SLinus Torvalds port_t *port = dev_to_port(dev); 2761da177e4SLinus Torvalds desc_t *desc; 2771da177e4SLinus Torvalds 2781da177e4SLinus Torvalds spin_lock(&port->lock); 2791da177e4SLinus Torvalds 2801da177e4SLinus Torvalds desc = &get_status(port)->tx_descs[port->tx_out]; 2811da177e4SLinus Torvalds if (desc->stat != PACKET_EMPTY) { 2821da177e4SLinus Torvalds /* should never happen - previous xmit should stop queue */ 2831da177e4SLinus Torvalds #ifdef DEBUG_PKT 2841da177e4SLinus Torvalds printk(KERN_DEBUG "%s: transmitter buffer full\n", dev->name); 2851da177e4SLinus Torvalds #endif 2861da177e4SLinus Torvalds netif_stop_queue(dev); 2870311ee22SDan Carpenter spin_unlock(&port->lock); 2885b548140SPatrick McHardy return NETDEV_TX_BUSY; /* request packet to be queued */ 2891da177e4SLinus Torvalds } 2901da177e4SLinus Torvalds 2911da177e4SLinus Torvalds #ifdef DEBUG_PKT 2921da177e4SLinus Torvalds printk(KERN_DEBUG "%s TX(%i):", dev->name, skb->len); 2931da177e4SLinus Torvalds debug_frame(skb); 2941da177e4SLinus Torvalds #endif 2951da177e4SLinus Torvalds 2961da177e4SLinus Torvalds port->tx_skbs[port->tx_out] = skb; 2971da177e4SLinus Torvalds desc->address = pci_map_single(port->card->pdev, skb->data, skb->len, 2981da177e4SLinus Torvalds PCI_DMA_TODEVICE); 2991da177e4SLinus Torvalds desc->length = skb->len; 3001da177e4SLinus Torvalds desc->stat = PACKET_FULL; 3011da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_TX_0 + port->node), 3021da177e4SLinus Torvalds port->card->plx + PLX_DOORBELL_TO_CARD); 3031da177e4SLinus Torvalds 3041da177e4SLinus Torvalds port->tx_out = (port->tx_out + 1) % TX_BUFFERS; 3051da177e4SLinus Torvalds 3061da177e4SLinus Torvalds if (get_status(port)->tx_descs[port->tx_out].stat != PACKET_EMPTY) { 3071da177e4SLinus Torvalds netif_stop_queue(dev); 3081da177e4SLinus Torvalds #ifdef DEBUG_PKT 3091da177e4SLinus Torvalds printk(KERN_DEBUG "%s: transmitter buffer full\n", dev->name); 3101da177e4SLinus Torvalds #endif 3111da177e4SLinus Torvalds } 3121da177e4SLinus Torvalds 3131da177e4SLinus Torvalds spin_unlock(&port->lock); 314ec634fe3SPatrick McHardy return NETDEV_TX_OK; 3151da177e4SLinus Torvalds } 3161da177e4SLinus Torvalds 3171da177e4SLinus Torvalds 3181da177e4SLinus Torvalds 3191da177e4SLinus Torvalds static int wanxl_attach(struct net_device *dev, unsigned short encoding, 3201da177e4SLinus Torvalds unsigned short parity) 3211da177e4SLinus Torvalds { 3221da177e4SLinus Torvalds port_t *port = dev_to_port(dev); 3231da177e4SLinus Torvalds 3241da177e4SLinus Torvalds if (encoding != ENCODING_NRZ && 3251da177e4SLinus Torvalds encoding != ENCODING_NRZI) 3261da177e4SLinus Torvalds return -EINVAL; 3271da177e4SLinus Torvalds 3281da177e4SLinus Torvalds if (parity != PARITY_NONE && 3291da177e4SLinus Torvalds parity != PARITY_CRC32_PR1_CCITT && 3301da177e4SLinus Torvalds parity != PARITY_CRC16_PR1_CCITT && 3311da177e4SLinus Torvalds parity != PARITY_CRC32_PR0_CCITT && 3321da177e4SLinus Torvalds parity != PARITY_CRC16_PR0_CCITT) 3331da177e4SLinus Torvalds return -EINVAL; 3341da177e4SLinus Torvalds 3351da177e4SLinus Torvalds get_status(port)->encoding = encoding; 3361da177e4SLinus Torvalds get_status(port)->parity = parity; 3371da177e4SLinus Torvalds return 0; 3381da177e4SLinus Torvalds } 3391da177e4SLinus Torvalds 3401da177e4SLinus Torvalds 3411da177e4SLinus Torvalds 3421da177e4SLinus Torvalds static int wanxl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 3431da177e4SLinus Torvalds { 3441da177e4SLinus Torvalds const size_t size = sizeof(sync_serial_settings); 3451da177e4SLinus Torvalds sync_serial_settings line; 3461da177e4SLinus Torvalds port_t *port = dev_to_port(dev); 3471da177e4SLinus Torvalds 3481da177e4SLinus Torvalds if (cmd != SIOCWANDEV) 3491da177e4SLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 3501da177e4SLinus Torvalds 3511da177e4SLinus Torvalds switch (ifr->ifr_settings.type) { 3521da177e4SLinus Torvalds case IF_GET_IFACE: 3531da177e4SLinus Torvalds ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL; 3541da177e4SLinus Torvalds if (ifr->ifr_settings.size < size) { 3551da177e4SLinus Torvalds ifr->ifr_settings.size = size; /* data size wanted */ 3561da177e4SLinus Torvalds return -ENOBUFS; 3571da177e4SLinus Torvalds } 3581da177e4SLinus Torvalds line.clock_type = get_status(port)->clocking; 3591da177e4SLinus Torvalds line.clock_rate = 0; 3601da177e4SLinus Torvalds line.loopback = 0; 3611da177e4SLinus Torvalds 3621da177e4SLinus Torvalds if (copy_to_user(ifr->ifr_settings.ifs_ifsu.sync, &line, size)) 3631da177e4SLinus Torvalds return -EFAULT; 3641da177e4SLinus Torvalds return 0; 3651da177e4SLinus Torvalds 3661da177e4SLinus Torvalds case IF_IFACE_SYNC_SERIAL: 3671da177e4SLinus Torvalds if (!capable(CAP_NET_ADMIN)) 3681da177e4SLinus Torvalds return -EPERM; 3691da177e4SLinus Torvalds if (dev->flags & IFF_UP) 3701da177e4SLinus Torvalds return -EBUSY; 3711da177e4SLinus Torvalds 3721da177e4SLinus Torvalds if (copy_from_user(&line, ifr->ifr_settings.ifs_ifsu.sync, 3731da177e4SLinus Torvalds size)) 3741da177e4SLinus Torvalds return -EFAULT; 3751da177e4SLinus Torvalds 3761da177e4SLinus Torvalds if (line.clock_type != CLOCK_EXT && 3771da177e4SLinus Torvalds line.clock_type != CLOCK_TXFROMRX) 3781da177e4SLinus Torvalds return -EINVAL; /* No such clock setting */ 3791da177e4SLinus Torvalds 3801da177e4SLinus Torvalds if (line.loopback != 0) 3811da177e4SLinus Torvalds return -EINVAL; 3821da177e4SLinus Torvalds 3831da177e4SLinus Torvalds get_status(port)->clocking = line.clock_type; 3841da177e4SLinus Torvalds return 0; 3851da177e4SLinus Torvalds 3861da177e4SLinus Torvalds default: 3871da177e4SLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 3881da177e4SLinus Torvalds } 3891da177e4SLinus Torvalds } 3901da177e4SLinus Torvalds 3911da177e4SLinus Torvalds 3921da177e4SLinus Torvalds 3931da177e4SLinus Torvalds static int wanxl_open(struct net_device *dev) 3941da177e4SLinus Torvalds { 3951da177e4SLinus Torvalds port_t *port = dev_to_port(dev); 3961da177e4SLinus Torvalds u8 __iomem *dbr = port->card->plx + PLX_DOORBELL_TO_CARD; 3971da177e4SLinus Torvalds unsigned long timeout; 3981da177e4SLinus Torvalds int i; 3991da177e4SLinus Torvalds 4001da177e4SLinus Torvalds if (get_status(port)->open) { 40112a3bfefSJoe Perches netdev_err(dev, "port already open\n"); 4021da177e4SLinus Torvalds return -EIO; 4031da177e4SLinus Torvalds } 4041da177e4SLinus Torvalds if ((i = hdlc_open(dev)) != 0) 4051da177e4SLinus Torvalds return i; 4061da177e4SLinus Torvalds 4071da177e4SLinus Torvalds port->tx_in = port->tx_out = 0; 4081da177e4SLinus Torvalds for (i = 0; i < TX_BUFFERS; i++) 4091da177e4SLinus Torvalds get_status(port)->tx_descs[i].stat = PACKET_EMPTY; 4101da177e4SLinus Torvalds /* signal the card */ 4111da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_OPEN_0 + port->node), dbr); 4121da177e4SLinus Torvalds 4131da177e4SLinus Torvalds timeout = jiffies + HZ; 414d157e023SHannes Eder do { 4151da177e4SLinus Torvalds if (get_status(port)->open) { 4161da177e4SLinus Torvalds netif_start_queue(dev); 4171da177e4SLinus Torvalds return 0; 4181da177e4SLinus Torvalds } 419d157e023SHannes Eder } while (time_after(timeout, jiffies)); 4201da177e4SLinus Torvalds 42112a3bfefSJoe Perches netdev_err(dev, "unable to open port\n"); 4221da177e4SLinus Torvalds /* ask the card to close the port, should it be still alive */ 4231da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_CLOSE_0 + port->node), dbr); 4241da177e4SLinus Torvalds return -EFAULT; 4251da177e4SLinus Torvalds } 4261da177e4SLinus Torvalds 4271da177e4SLinus Torvalds 4281da177e4SLinus Torvalds 4291da177e4SLinus Torvalds static int wanxl_close(struct net_device *dev) 4301da177e4SLinus Torvalds { 4311da177e4SLinus Torvalds port_t *port = dev_to_port(dev); 4321da177e4SLinus Torvalds unsigned long timeout; 4331da177e4SLinus Torvalds int i; 4341da177e4SLinus Torvalds 4351da177e4SLinus Torvalds hdlc_close(dev); 4361da177e4SLinus Torvalds /* signal the card */ 4371da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_CLOSE_0 + port->node), 4381da177e4SLinus Torvalds port->card->plx + PLX_DOORBELL_TO_CARD); 4391da177e4SLinus Torvalds 4401da177e4SLinus Torvalds timeout = jiffies + HZ; 441d157e023SHannes Eder do { 4421da177e4SLinus Torvalds if (!get_status(port)->open) 4431da177e4SLinus Torvalds break; 444d157e023SHannes Eder } while (time_after(timeout, jiffies)); 4451da177e4SLinus Torvalds 4461da177e4SLinus Torvalds if (get_status(port)->open) 44712a3bfefSJoe Perches netdev_err(dev, "unable to close port\n"); 4481da177e4SLinus Torvalds 4491da177e4SLinus Torvalds netif_stop_queue(dev); 4501da177e4SLinus Torvalds 4511da177e4SLinus Torvalds for (i = 0; i < TX_BUFFERS; i++) { 4521da177e4SLinus Torvalds desc_t *desc = &get_status(port)->tx_descs[i]; 4531da177e4SLinus Torvalds 4541da177e4SLinus Torvalds if (desc->stat != PACKET_EMPTY) { 4551da177e4SLinus Torvalds desc->stat = PACKET_EMPTY; 4561da177e4SLinus Torvalds pci_unmap_single(port->card->pdev, desc->address, 4571da177e4SLinus Torvalds port->tx_skbs[i]->len, 4581da177e4SLinus Torvalds PCI_DMA_TODEVICE); 4591da177e4SLinus Torvalds dev_kfree_skb(port->tx_skbs[i]); 4601da177e4SLinus Torvalds } 4611da177e4SLinus Torvalds } 4621da177e4SLinus Torvalds return 0; 4631da177e4SLinus Torvalds } 4641da177e4SLinus Torvalds 4651da177e4SLinus Torvalds 4661da177e4SLinus Torvalds 4671da177e4SLinus Torvalds static struct net_device_stats *wanxl_get_stats(struct net_device *dev) 4681da177e4SLinus Torvalds { 4691da177e4SLinus Torvalds port_t *port = dev_to_port(dev); 4701da177e4SLinus Torvalds 471198191c4SKrzysztof Halasa dev->stats.rx_over_errors = get_status(port)->rx_overruns; 472198191c4SKrzysztof Halasa dev->stats.rx_frame_errors = get_status(port)->rx_frame_errors; 473198191c4SKrzysztof Halasa dev->stats.rx_errors = dev->stats.rx_over_errors + 474198191c4SKrzysztof Halasa dev->stats.rx_frame_errors; 475198191c4SKrzysztof Halasa return &dev->stats; 4761da177e4SLinus Torvalds } 4771da177e4SLinus Torvalds 4781da177e4SLinus Torvalds 4791da177e4SLinus Torvalds 4801da177e4SLinus Torvalds static int wanxl_puts_command(card_t *card, u32 cmd) 4811da177e4SLinus Torvalds { 4821da177e4SLinus Torvalds unsigned long timeout = jiffies + 5 * HZ; 4831da177e4SLinus Torvalds 4841da177e4SLinus Torvalds writel(cmd, card->plx + PLX_MAILBOX_1); 4851da177e4SLinus Torvalds do { 4861da177e4SLinus Torvalds if (readl(card->plx + PLX_MAILBOX_1) == 0) 4871da177e4SLinus Torvalds return 0; 4881da177e4SLinus Torvalds 4891da177e4SLinus Torvalds schedule(); 4901da177e4SLinus Torvalds }while (time_after(timeout, jiffies)); 4911da177e4SLinus Torvalds 4921da177e4SLinus Torvalds return -1; 4931da177e4SLinus Torvalds } 4941da177e4SLinus Torvalds 4951da177e4SLinus Torvalds 4961da177e4SLinus Torvalds 4971da177e4SLinus Torvalds static void wanxl_reset(card_t *card) 4981da177e4SLinus Torvalds { 4991da177e4SLinus Torvalds u32 old_value = readl(card->plx + PLX_CONTROL) & ~PLX_CTL_RESET; 5001da177e4SLinus Torvalds 5011da177e4SLinus Torvalds writel(0x80, card->plx + PLX_MAILBOX_0); 5021da177e4SLinus Torvalds writel(old_value | PLX_CTL_RESET, card->plx + PLX_CONTROL); 5031da177e4SLinus Torvalds readl(card->plx + PLX_CONTROL); /* wait for posted write */ 5041da177e4SLinus Torvalds udelay(1); 5051da177e4SLinus Torvalds writel(old_value, card->plx + PLX_CONTROL); 5061da177e4SLinus Torvalds readl(card->plx + PLX_CONTROL); /* wait for posted write */ 5071da177e4SLinus Torvalds } 5081da177e4SLinus Torvalds 5091da177e4SLinus Torvalds 5101da177e4SLinus Torvalds 5111da177e4SLinus Torvalds static void wanxl_pci_remove_one(struct pci_dev *pdev) 5121da177e4SLinus Torvalds { 5131da177e4SLinus Torvalds card_t *card = pci_get_drvdata(pdev); 5141da177e4SLinus Torvalds int i; 5151da177e4SLinus Torvalds 5161da177e4SLinus Torvalds for (i = 0; i < card->n_ports; i++) { 5171da177e4SLinus Torvalds unregister_hdlc_device(card->ports[i].dev); 5181da177e4SLinus Torvalds free_netdev(card->ports[i].dev); 5191da177e4SLinus Torvalds } 5201da177e4SLinus Torvalds 5211da177e4SLinus Torvalds /* unregister and free all host resources */ 5221da177e4SLinus Torvalds if (card->irq) 5231da177e4SLinus Torvalds free_irq(card->irq, card); 5241da177e4SLinus Torvalds 5251da177e4SLinus Torvalds wanxl_reset(card); 5261da177e4SLinus Torvalds 5271da177e4SLinus Torvalds for (i = 0; i < RX_QUEUE_LENGTH; i++) 5281da177e4SLinus Torvalds if (card->rx_skbs[i]) { 5291da177e4SLinus Torvalds pci_unmap_single(card->pdev, 5301da177e4SLinus Torvalds card->status->rx_descs[i].address, 5311da177e4SLinus Torvalds BUFFER_LENGTH, PCI_DMA_FROMDEVICE); 5321da177e4SLinus Torvalds dev_kfree_skb(card->rx_skbs[i]); 5331da177e4SLinus Torvalds } 5341da177e4SLinus Torvalds 5351da177e4SLinus Torvalds if (card->plx) 5361da177e4SLinus Torvalds iounmap(card->plx); 5371da177e4SLinus Torvalds 5381da177e4SLinus Torvalds if (card->status) 5391da177e4SLinus Torvalds pci_free_consistent(pdev, sizeof(card_status_t), 5401da177e4SLinus Torvalds card->status, card->status_address); 5411da177e4SLinus Torvalds 5421da177e4SLinus Torvalds pci_release_regions(pdev); 5431da177e4SLinus Torvalds pci_disable_device(pdev); 5441da177e4SLinus Torvalds pci_set_drvdata(pdev, NULL); 5451da177e4SLinus Torvalds kfree(card); 5461da177e4SLinus Torvalds } 5471da177e4SLinus Torvalds 5481da177e4SLinus Torvalds 5491da177e4SLinus Torvalds #include "wanxlfw.inc" 5501da177e4SLinus Torvalds 551991990a1SKrzysztof Hałasa static const struct net_device_ops wanxl_ops = { 552991990a1SKrzysztof Hałasa .ndo_open = wanxl_open, 553991990a1SKrzysztof Hałasa .ndo_stop = wanxl_close, 554991990a1SKrzysztof Hałasa .ndo_change_mtu = hdlc_change_mtu, 555991990a1SKrzysztof Hałasa .ndo_start_xmit = hdlc_start_xmit, 556991990a1SKrzysztof Hałasa .ndo_do_ioctl = wanxl_ioctl, 557991990a1SKrzysztof Hałasa .ndo_get_stats = wanxl_get_stats, 558991990a1SKrzysztof Hałasa }; 559991990a1SKrzysztof Hałasa 5601da177e4SLinus Torvalds static int __devinit wanxl_pci_init_one(struct pci_dev *pdev, 5611da177e4SLinus Torvalds const struct pci_device_id *ent) 5621da177e4SLinus Torvalds { 5631da177e4SLinus Torvalds card_t *card; 5641da177e4SLinus Torvalds u32 ramsize, stat; 5651da177e4SLinus Torvalds unsigned long timeout; 5661da177e4SLinus Torvalds u32 plx_phy; /* PLX PCI base address */ 5671da177e4SLinus Torvalds u32 mem_phy; /* memory PCI base addr */ 5681da177e4SLinus Torvalds u8 __iomem *mem; /* memory virtual base addr */ 5691da177e4SLinus Torvalds int i, ports, alloc_size; 5701da177e4SLinus Torvalds 5711da177e4SLinus Torvalds #ifndef MODULE 57212a3bfefSJoe Perches pr_info_once("%s\n", version); 5731da177e4SLinus Torvalds #endif 5741da177e4SLinus Torvalds 5751da177e4SLinus Torvalds i = pci_enable_device(pdev); 5761da177e4SLinus Torvalds if (i) 5771da177e4SLinus Torvalds return i; 5781da177e4SLinus Torvalds 5791da177e4SLinus Torvalds /* QUICC can only access first 256 MB of host RAM directly, 5801da177e4SLinus Torvalds but PLX9060 DMA does 32-bits for actual packet data transfers */ 5811da177e4SLinus Torvalds 5821da177e4SLinus Torvalds /* FIXME when PCI/DMA subsystems are fixed. 5831da177e4SLinus Torvalds We set both dma_mask and consistent_dma_mask to 28 bits 5841da177e4SLinus Torvalds and pray pci_alloc_consistent() will use this info. It should 5851da177e4SLinus Torvalds work on most platforms */ 586ce0b6201SYang Hongyang if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(28)) || 587ce0b6201SYang Hongyang pci_set_dma_mask(pdev, DMA_BIT_MASK(28))) { 58812a3bfefSJoe Perches pr_err("No usable DMA configuration\n"); 5891da177e4SLinus Torvalds return -EIO; 5901da177e4SLinus Torvalds } 5911da177e4SLinus Torvalds 5921da177e4SLinus Torvalds i = pci_request_regions(pdev, "wanXL"); 5931da177e4SLinus Torvalds if (i) { 5941da177e4SLinus Torvalds pci_disable_device(pdev); 5951da177e4SLinus Torvalds return i; 5961da177e4SLinus Torvalds } 5971da177e4SLinus Torvalds 5981da177e4SLinus Torvalds switch (pdev->device) { 5991da177e4SLinus Torvalds case PCI_DEVICE_ID_SBE_WANXL100: ports = 1; break; 6001da177e4SLinus Torvalds case PCI_DEVICE_ID_SBE_WANXL200: ports = 2; break; 6011da177e4SLinus Torvalds default: ports = 4; 6021da177e4SLinus Torvalds } 6031da177e4SLinus Torvalds 6041da177e4SLinus Torvalds alloc_size = sizeof(card_t) + ports * sizeof(port_t); 605dd00cc48SYoann Padioleau card = kzalloc(alloc_size, GFP_KERNEL); 6061da177e4SLinus Torvalds if (card == NULL) { 60712a3bfefSJoe Perches pr_err("%s: unable to allocate memory\n", pci_name(pdev)); 6081da177e4SLinus Torvalds pci_release_regions(pdev); 6091da177e4SLinus Torvalds pci_disable_device(pdev); 6101da177e4SLinus Torvalds return -ENOBUFS; 6111da177e4SLinus Torvalds } 6121da177e4SLinus Torvalds 6131da177e4SLinus Torvalds pci_set_drvdata(pdev, card); 6141da177e4SLinus Torvalds card->pdev = pdev; 6151da177e4SLinus Torvalds 6161da177e4SLinus Torvalds card->status = pci_alloc_consistent(pdev, sizeof(card_status_t), 6171da177e4SLinus Torvalds &card->status_address); 6181da177e4SLinus Torvalds if (card->status == NULL) { 6191da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6201da177e4SLinus Torvalds return -ENOBUFS; 6211da177e4SLinus Torvalds } 6221da177e4SLinus Torvalds 6231da177e4SLinus Torvalds #ifdef DEBUG_PCI 6241da177e4SLinus Torvalds printk(KERN_DEBUG "wanXL %s: pci_alloc_consistent() returned memory" 6251da177e4SLinus Torvalds " at 0x%LX\n", pci_name(pdev), 6261da177e4SLinus Torvalds (unsigned long long)card->status_address); 6271da177e4SLinus Torvalds #endif 6281da177e4SLinus Torvalds 6291da177e4SLinus Torvalds /* FIXME when PCI/DMA subsystems are fixed. 6301da177e4SLinus Torvalds We set both dma_mask and consistent_dma_mask back to 32 bits 6311da177e4SLinus Torvalds to indicate the card can do 32-bit DMA addressing */ 632284901a9SYang Hongyang if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) || 633284901a9SYang Hongyang pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { 63412a3bfefSJoe Perches pr_err("No usable DMA configuration\n"); 6351da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6361da177e4SLinus Torvalds return -EIO; 6371da177e4SLinus Torvalds } 6381da177e4SLinus Torvalds 6391da177e4SLinus Torvalds /* set up PLX mapping */ 6401da177e4SLinus Torvalds plx_phy = pci_resource_start(pdev, 0); 6414446065aSKrzysztof Halasa 6421da177e4SLinus Torvalds card->plx = ioremap_nocache(plx_phy, 0x70); 6434446065aSKrzysztof Halasa if (!card->plx) { 64412a3bfefSJoe Perches pr_err("ioremap() failed\n"); 6454446065aSKrzysztof Halasa wanxl_pci_remove_one(pdev); 6464446065aSKrzysztof Halasa return -EFAULT; 6474446065aSKrzysztof Halasa } 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvalds #if RESET_WHILE_LOADING 6501da177e4SLinus Torvalds wanxl_reset(card); 6511da177e4SLinus Torvalds #endif 6521da177e4SLinus Torvalds 6531da177e4SLinus Torvalds timeout = jiffies + 20 * HZ; 6541da177e4SLinus Torvalds while ((stat = readl(card->plx + PLX_MAILBOX_0)) != 0) { 6551da177e4SLinus Torvalds if (time_before(timeout, jiffies)) { 65612a3bfefSJoe Perches pr_warn("%s: timeout waiting for PUTS to complete\n", 65712a3bfefSJoe Perches pci_name(pdev)); 6581da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6591da177e4SLinus Torvalds return -ENODEV; 6601da177e4SLinus Torvalds } 6611da177e4SLinus Torvalds 6621da177e4SLinus Torvalds switch(stat & 0xC0) { 6631da177e4SLinus Torvalds case 0x00: /* hmm - PUTS completed with non-zero code? */ 6641da177e4SLinus Torvalds case 0x80: /* PUTS still testing the hardware */ 6651da177e4SLinus Torvalds break; 6661da177e4SLinus Torvalds 6671da177e4SLinus Torvalds default: 66812a3bfefSJoe Perches pr_warn("%s: PUTS test 0x%X failed\n", 66912a3bfefSJoe Perches pci_name(pdev), stat & 0x30); 6701da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6711da177e4SLinus Torvalds return -ENODEV; 6721da177e4SLinus Torvalds } 6731da177e4SLinus Torvalds 6741da177e4SLinus Torvalds schedule(); 6751da177e4SLinus Torvalds } 6761da177e4SLinus Torvalds 6771da177e4SLinus Torvalds /* get on-board memory size (PUTS detects no more than 4 MB) */ 6781da177e4SLinus Torvalds ramsize = readl(card->plx + PLX_MAILBOX_2) & MBX2_MEMSZ_MASK; 6791da177e4SLinus Torvalds 6801da177e4SLinus Torvalds /* set up on-board RAM mapping */ 6811da177e4SLinus Torvalds mem_phy = pci_resource_start(pdev, 2); 6821da177e4SLinus Torvalds 6831da177e4SLinus Torvalds 6841da177e4SLinus Torvalds /* sanity check the board's reported memory size */ 6851da177e4SLinus Torvalds if (ramsize < BUFFERS_ADDR + 6861da177e4SLinus Torvalds (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * ports) { 68712a3bfefSJoe Perches pr_warn("%s: no enough on-board RAM (%u bytes detected, %u bytes required)\n", 68812a3bfefSJoe Perches pci_name(pdev), ramsize, 68912a3bfefSJoe Perches BUFFERS_ADDR + 6901da177e4SLinus Torvalds (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * ports); 6911da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6921da177e4SLinus Torvalds return -ENODEV; 6931da177e4SLinus Torvalds } 6941da177e4SLinus Torvalds 6951da177e4SLinus Torvalds if (wanxl_puts_command(card, MBX1_CMD_BSWAP)) { 69612a3bfefSJoe Perches pr_warn("%s: unable to Set Byte Swap Mode\n", pci_name(pdev)); 6971da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6981da177e4SLinus Torvalds return -ENODEV; 6991da177e4SLinus Torvalds } 7001da177e4SLinus Torvalds 7011da177e4SLinus Torvalds for (i = 0; i < RX_QUEUE_LENGTH; i++) { 7021da177e4SLinus Torvalds struct sk_buff *skb = dev_alloc_skb(BUFFER_LENGTH); 7031da177e4SLinus Torvalds card->rx_skbs[i] = skb; 7041da177e4SLinus Torvalds if (skb) 7051da177e4SLinus Torvalds card->status->rx_descs[i].address = 7061da177e4SLinus Torvalds pci_map_single(card->pdev, skb->data, 7071da177e4SLinus Torvalds BUFFER_LENGTH, 7081da177e4SLinus Torvalds PCI_DMA_FROMDEVICE); 7091da177e4SLinus Torvalds } 7101da177e4SLinus Torvalds 7111da177e4SLinus Torvalds mem = ioremap_nocache(mem_phy, PDM_OFFSET + sizeof(firmware)); 7124446065aSKrzysztof Halasa if (!mem) { 71312a3bfefSJoe Perches pr_err("ioremap() failed\n"); 7144446065aSKrzysztof Halasa wanxl_pci_remove_one(pdev); 7154446065aSKrzysztof Halasa return -EFAULT; 7164446065aSKrzysztof Halasa } 7174446065aSKrzysztof Halasa 7181da177e4SLinus Torvalds for (i = 0; i < sizeof(firmware); i += 4) 71990458401SAl Viro writel(ntohl(*(__be32*)(firmware + i)), mem + PDM_OFFSET + i); 7201da177e4SLinus Torvalds 7211da177e4SLinus Torvalds for (i = 0; i < ports; i++) 7221da177e4SLinus Torvalds writel(card->status_address + 7231da177e4SLinus Torvalds (void *)&card->status->port_status[i] - 7241da177e4SLinus Torvalds (void *)card->status, mem + PDM_OFFSET + 4 + i * 4); 7251da177e4SLinus Torvalds writel(card->status_address, mem + PDM_OFFSET + 20); 7261da177e4SLinus Torvalds writel(PDM_OFFSET, mem); 7271da177e4SLinus Torvalds iounmap(mem); 7281da177e4SLinus Torvalds 7291da177e4SLinus Torvalds writel(0, card->plx + PLX_MAILBOX_5); 7301da177e4SLinus Torvalds 7311da177e4SLinus Torvalds if (wanxl_puts_command(card, MBX1_CMD_ABORTJ)) { 73212a3bfefSJoe Perches pr_warn("%s: unable to Abort and Jump\n", pci_name(pdev)); 7331da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7341da177e4SLinus Torvalds return -ENODEV; 7351da177e4SLinus Torvalds } 7361da177e4SLinus Torvalds 7371da177e4SLinus Torvalds stat = 0; 7381da177e4SLinus Torvalds timeout = jiffies + 5 * HZ; 7391da177e4SLinus Torvalds do { 7401da177e4SLinus Torvalds if ((stat = readl(card->plx + PLX_MAILBOX_5)) != 0) 7411da177e4SLinus Torvalds break; 7421da177e4SLinus Torvalds schedule(); 7431da177e4SLinus Torvalds }while (time_after(timeout, jiffies)); 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds if (!stat) { 74612a3bfefSJoe Perches pr_warn("%s: timeout while initializing card firmware\n", 74712a3bfefSJoe Perches pci_name(pdev)); 7481da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7491da177e4SLinus Torvalds return -ENODEV; 7501da177e4SLinus Torvalds } 7511da177e4SLinus Torvalds 7521da177e4SLinus Torvalds #if DETECT_RAM 7531da177e4SLinus Torvalds ramsize = stat; 7541da177e4SLinus Torvalds #endif 7551da177e4SLinus Torvalds 75612a3bfefSJoe Perches pr_info("%s: at 0x%X, %u KB of RAM at 0x%X, irq %u\n", 7571da177e4SLinus Torvalds pci_name(pdev), plx_phy, ramsize / 1024, mem_phy, pdev->irq); 7581da177e4SLinus Torvalds 7591da177e4SLinus Torvalds /* Allocate IRQ */ 7601fb9df5dSThomas Gleixner if (request_irq(pdev->irq, wanxl_intr, IRQF_SHARED, "wanXL", card)) { 76112a3bfefSJoe Perches pr_warn("%s: could not allocate IRQ%i\n", 7621da177e4SLinus Torvalds pci_name(pdev), pdev->irq); 7631da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7641da177e4SLinus Torvalds return -EBUSY; 7651da177e4SLinus Torvalds } 7661da177e4SLinus Torvalds card->irq = pdev->irq; 7671da177e4SLinus Torvalds 7681da177e4SLinus Torvalds for (i = 0; i < ports; i++) { 7691da177e4SLinus Torvalds hdlc_device *hdlc; 7701da177e4SLinus Torvalds port_t *port = &card->ports[i]; 7711da177e4SLinus Torvalds struct net_device *dev = alloc_hdlcdev(port); 7721da177e4SLinus Torvalds if (!dev) { 77312a3bfefSJoe Perches pr_err("%s: unable to allocate memory\n", 77412a3bfefSJoe Perches pci_name(pdev)); 7751da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7761da177e4SLinus Torvalds return -ENOMEM; 7771da177e4SLinus Torvalds } 7781da177e4SLinus Torvalds 7791da177e4SLinus Torvalds port->dev = dev; 7801da177e4SLinus Torvalds hdlc = dev_to_hdlc(dev); 7811da177e4SLinus Torvalds spin_lock_init(&port->lock); 7821da177e4SLinus Torvalds dev->tx_queue_len = 50; 783991990a1SKrzysztof Hałasa dev->netdev_ops = &wanxl_ops; 7841da177e4SLinus Torvalds hdlc->attach = wanxl_attach; 7851da177e4SLinus Torvalds hdlc->xmit = wanxl_xmit; 7861da177e4SLinus Torvalds port->card = card; 7871da177e4SLinus Torvalds port->node = i; 7881da177e4SLinus Torvalds get_status(port)->clocking = CLOCK_EXT; 7891da177e4SLinus Torvalds if (register_hdlc_device(dev)) { 79012a3bfefSJoe Perches pr_err("%s: unable to register hdlc device\n", 79112a3bfefSJoe Perches pci_name(pdev)); 7921da177e4SLinus Torvalds free_netdev(dev); 7931da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7941da177e4SLinus Torvalds return -ENOBUFS; 7951da177e4SLinus Torvalds } 7961da177e4SLinus Torvalds card->n_ports++; 7971da177e4SLinus Torvalds } 7981da177e4SLinus Torvalds 79912a3bfefSJoe Perches pr_info("%s: port", pci_name(pdev)); 8001da177e4SLinus Torvalds for (i = 0; i < ports; i++) 80112a3bfefSJoe Perches pr_cont("%s #%i: %s", 80212a3bfefSJoe Perches i ? "," : "", i, card->ports[i].dev->name); 80312a3bfefSJoe Perches pr_cont("\n"); 8041da177e4SLinus Torvalds 8051da177e4SLinus Torvalds for (i = 0; i < ports; i++) 8061da177e4SLinus Torvalds wanxl_cable_intr(&card->ports[i]); /* get carrier status etc.*/ 8071da177e4SLinus Torvalds 8081da177e4SLinus Torvalds return 0; 8091da177e4SLinus Torvalds } 8101da177e4SLinus Torvalds 811a3aa1884SAlexey Dobriyan static DEFINE_PCI_DEVICE_TABLE(wanxl_pci_tbl) = { 8121da177e4SLinus Torvalds { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL100, PCI_ANY_ID, 8131da177e4SLinus Torvalds PCI_ANY_ID, 0, 0, 0 }, 8141da177e4SLinus Torvalds { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL200, PCI_ANY_ID, 8151da177e4SLinus Torvalds PCI_ANY_ID, 0, 0, 0 }, 8161da177e4SLinus Torvalds { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL400, PCI_ANY_ID, 8171da177e4SLinus Torvalds PCI_ANY_ID, 0, 0, 0 }, 8181da177e4SLinus Torvalds { 0, } 8191da177e4SLinus Torvalds }; 8201da177e4SLinus Torvalds 8211da177e4SLinus Torvalds 8221da177e4SLinus Torvalds static struct pci_driver wanxl_pci_driver = { 8231da177e4SLinus Torvalds .name = "wanXL", 8241da177e4SLinus Torvalds .id_table = wanxl_pci_tbl, 8251da177e4SLinus Torvalds .probe = wanxl_pci_init_one, 8261da177e4SLinus Torvalds .remove = wanxl_pci_remove_one, 8271da177e4SLinus Torvalds }; 8281da177e4SLinus Torvalds 8291da177e4SLinus Torvalds 8301da177e4SLinus Torvalds static int __init wanxl_init_module(void) 8311da177e4SLinus Torvalds { 8321da177e4SLinus Torvalds #ifdef MODULE 83312a3bfefSJoe Perches pr_info("%s\n", version); 8341da177e4SLinus Torvalds #endif 83529917620SJeff Garzik return pci_register_driver(&wanxl_pci_driver); 8361da177e4SLinus Torvalds } 8371da177e4SLinus Torvalds 8381da177e4SLinus Torvalds static void __exit wanxl_cleanup_module(void) 8391da177e4SLinus Torvalds { 8401da177e4SLinus Torvalds pci_unregister_driver(&wanxl_pci_driver); 8411da177e4SLinus Torvalds } 8421da177e4SLinus Torvalds 8431da177e4SLinus Torvalds 8441da177e4SLinus Torvalds MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>"); 8451da177e4SLinus Torvalds MODULE_DESCRIPTION("SBE Inc. wanXL serial port driver"); 8461da177e4SLinus Torvalds MODULE_LICENSE("GPL v2"); 8471da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, wanxl_pci_tbl); 8481da177e4SLinus Torvalds 8491da177e4SLinus Torvalds module_init(wanxl_init_module); 8501da177e4SLinus Torvalds module_exit(wanxl_cleanup_module); 851