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 531da177e4SLinus Torvalds 54db569581SHimangi Saraogi struct port { 551da177e4SLinus Torvalds struct net_device *dev; 56db569581SHimangi Saraogi struct card *card; 571da177e4SLinus Torvalds spinlock_t lock; /* for wanxl_xmit */ 581da177e4SLinus Torvalds int node; /* physical port #0 - 3 */ 591da177e4SLinus Torvalds unsigned int clock_type; 601da177e4SLinus Torvalds int tx_in, tx_out; 611da177e4SLinus Torvalds struct sk_buff *tx_skbs[TX_BUFFERS]; 62db569581SHimangi Saraogi }; 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds 65db569581SHimangi Saraogi struct card_status { 661da177e4SLinus Torvalds desc_t rx_descs[RX_QUEUE_LENGTH]; 671da177e4SLinus Torvalds port_status_t port_status[4]; 68db569581SHimangi Saraogi }; 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds 71db569581SHimangi Saraogi struct card { 721da177e4SLinus Torvalds int n_ports; /* 1, 2 or 4 ports */ 731da177e4SLinus Torvalds u8 irq; 741da177e4SLinus Torvalds 751da177e4SLinus Torvalds u8 __iomem *plx; /* PLX PCI9060 virtual base address */ 761da177e4SLinus Torvalds struct pci_dev *pdev; /* for pci_name(pdev) */ 771da177e4SLinus Torvalds int rx_in; 781da177e4SLinus Torvalds struct sk_buff *rx_skbs[RX_QUEUE_LENGTH]; 79db569581SHimangi Saraogi struct card_status *status; /* shared between host and card */ 801da177e4SLinus Torvalds dma_addr_t status_address; 81db569581SHimangi Saraogi struct port ports[0]; /* 1 - 4 port structures follow */ 82db569581SHimangi Saraogi }; 831da177e4SLinus Torvalds 841da177e4SLinus Torvalds 851da177e4SLinus Torvalds 86db569581SHimangi Saraogi static inline struct port *dev_to_port(struct net_device *dev) 871da177e4SLinus Torvalds { 88db569581SHimangi Saraogi return (struct port *)dev_to_hdlc(dev)->priv; 891da177e4SLinus Torvalds } 901da177e4SLinus Torvalds 911da177e4SLinus Torvalds 92db569581SHimangi Saraogi static inline port_status_t *get_status(struct port *port) 931da177e4SLinus Torvalds { 941da177e4SLinus Torvalds return &port->card->status->port_status[port->node]; 951da177e4SLinus Torvalds } 961da177e4SLinus Torvalds 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds #ifdef DEBUG_PCI 991da177e4SLinus Torvalds static inline dma_addr_t pci_map_single_debug(struct pci_dev *pdev, void *ptr, 1001da177e4SLinus Torvalds size_t size, int direction) 1011da177e4SLinus Torvalds { 1021da177e4SLinus Torvalds dma_addr_t addr = pci_map_single(pdev, ptr, size, direction); 1031da177e4SLinus Torvalds if (addr + size > 0x100000000LL) 10412a3bfefSJoe Perches pr_crit("%s: pci_map_single() returned memory at 0x%llx!\n", 10512a3bfefSJoe Perches pci_name(pdev), (unsigned long long)addr); 1061da177e4SLinus Torvalds return addr; 1071da177e4SLinus Torvalds } 1081da177e4SLinus Torvalds 1091da177e4SLinus Torvalds #undef pci_map_single 1101da177e4SLinus Torvalds #define pci_map_single pci_map_single_debug 1111da177e4SLinus Torvalds #endif 1121da177e4SLinus Torvalds 1131da177e4SLinus Torvalds 1141da177e4SLinus Torvalds /* Cable and/or personality module change interrupt service */ 115db569581SHimangi Saraogi static inline void wanxl_cable_intr(struct port *port) 1161da177e4SLinus Torvalds { 1171da177e4SLinus Torvalds u32 value = get_status(port)->cable; 1181da177e4SLinus Torvalds int valid = 1; 1191da177e4SLinus Torvalds const char *cable, *pm, *dte = "", *dsr = "", *dcd = ""; 1201da177e4SLinus Torvalds 1211da177e4SLinus Torvalds switch(value & 0x7) { 1221da177e4SLinus Torvalds case STATUS_CABLE_V35: cable = "V.35"; break; 1231da177e4SLinus Torvalds case STATUS_CABLE_X21: cable = "X.21"; break; 1241da177e4SLinus Torvalds case STATUS_CABLE_V24: cable = "V.24"; break; 1251da177e4SLinus Torvalds case STATUS_CABLE_EIA530: cable = "EIA530"; break; 1261da177e4SLinus Torvalds case STATUS_CABLE_NONE: cable = "no"; break; 1271da177e4SLinus Torvalds default: cable = "invalid"; 1281da177e4SLinus Torvalds } 1291da177e4SLinus Torvalds 1301da177e4SLinus Torvalds switch((value >> STATUS_CABLE_PM_SHIFT) & 0x7) { 1311da177e4SLinus Torvalds case STATUS_CABLE_V35: pm = "V.35"; break; 1321da177e4SLinus Torvalds case STATUS_CABLE_X21: pm = "X.21"; break; 1331da177e4SLinus Torvalds case STATUS_CABLE_V24: pm = "V.24"; break; 1341da177e4SLinus Torvalds case STATUS_CABLE_EIA530: pm = "EIA530"; break; 1351da177e4SLinus Torvalds case STATUS_CABLE_NONE: pm = "no personality"; valid = 0; break; 1361da177e4SLinus Torvalds default: pm = "invalid personality"; valid = 0; 1371da177e4SLinus Torvalds } 1381da177e4SLinus Torvalds 1391da177e4SLinus Torvalds if (valid) { 1401da177e4SLinus Torvalds if ((value & 7) == ((value >> STATUS_CABLE_PM_SHIFT) & 7)) { 1411da177e4SLinus Torvalds dsr = (value & STATUS_CABLE_DSR) ? ", DSR ON" : 1421da177e4SLinus Torvalds ", DSR off"; 1431da177e4SLinus Torvalds dcd = (value & STATUS_CABLE_DCD) ? ", carrier ON" : 1441da177e4SLinus Torvalds ", carrier off"; 1451da177e4SLinus Torvalds } 1461da177e4SLinus Torvalds dte = (value & STATUS_CABLE_DCE) ? " DCE" : " DTE"; 1471da177e4SLinus Torvalds } 14812a3bfefSJoe Perches netdev_info(port->dev, "%s%s module, %s cable%s%s\n", 14912a3bfefSJoe Perches pm, dte, cable, dsr, dcd); 1501da177e4SLinus Torvalds 151c2ce9204SKrzysztof Halasa if (value & STATUS_CABLE_DCD) 152c2ce9204SKrzysztof Halasa netif_carrier_on(port->dev); 153c2ce9204SKrzysztof Halasa else 154c2ce9204SKrzysztof Halasa netif_carrier_off(port->dev); 1551da177e4SLinus Torvalds } 1561da177e4SLinus Torvalds 1571da177e4SLinus Torvalds 1581da177e4SLinus Torvalds 1591da177e4SLinus Torvalds /* Transmit complete interrupt service */ 160db569581SHimangi Saraogi static inline void wanxl_tx_intr(struct port *port) 1611da177e4SLinus Torvalds { 1621da177e4SLinus Torvalds struct net_device *dev = port->dev; 1631da177e4SLinus Torvalds while (1) { 1641da177e4SLinus Torvalds desc_t *desc = &get_status(port)->tx_descs[port->tx_in]; 1651da177e4SLinus Torvalds struct sk_buff *skb = port->tx_skbs[port->tx_in]; 1661da177e4SLinus Torvalds 1671da177e4SLinus Torvalds switch (desc->stat) { 1681da177e4SLinus Torvalds case PACKET_FULL: 1691da177e4SLinus Torvalds case PACKET_EMPTY: 1701da177e4SLinus Torvalds netif_wake_queue(dev); 1711da177e4SLinus Torvalds return; 1721da177e4SLinus Torvalds 1731da177e4SLinus Torvalds case PACKET_UNDERRUN: 174198191c4SKrzysztof Halasa dev->stats.tx_errors++; 175198191c4SKrzysztof Halasa dev->stats.tx_fifo_errors++; 1761da177e4SLinus Torvalds break; 1771da177e4SLinus Torvalds 1781da177e4SLinus Torvalds default: 179198191c4SKrzysztof Halasa dev->stats.tx_packets++; 180198191c4SKrzysztof Halasa dev->stats.tx_bytes += skb->len; 1811da177e4SLinus Torvalds } 1821da177e4SLinus Torvalds desc->stat = PACKET_EMPTY; /* Free descriptor */ 1831da177e4SLinus Torvalds pci_unmap_single(port->card->pdev, desc->address, skb->len, 1841da177e4SLinus Torvalds PCI_DMA_TODEVICE); 18573634c08SYang Wei dev_consume_skb_irq(skb); 1861da177e4SLinus Torvalds port->tx_in = (port->tx_in + 1) % TX_BUFFERS; 1871da177e4SLinus Torvalds } 1881da177e4SLinus Torvalds } 1891da177e4SLinus Torvalds 1901da177e4SLinus Torvalds 1911da177e4SLinus Torvalds 1921da177e4SLinus Torvalds /* Receive complete interrupt service */ 193db569581SHimangi Saraogi static inline void wanxl_rx_intr(struct card *card) 1941da177e4SLinus Torvalds { 1951da177e4SLinus Torvalds desc_t *desc; 1961da177e4SLinus Torvalds while (desc = &card->status->rx_descs[card->rx_in], 1971da177e4SLinus Torvalds desc->stat != PACKET_EMPTY) { 1981da177e4SLinus Torvalds if ((desc->stat & PACKET_PORT_MASK) > card->n_ports) 19912a3bfefSJoe Perches pr_crit("%s: received packet for nonexistent port\n", 20012a3bfefSJoe Perches pci_name(card->pdev)); 2011da177e4SLinus Torvalds else { 2021da177e4SLinus Torvalds struct sk_buff *skb = card->rx_skbs[card->rx_in]; 203db569581SHimangi Saraogi struct port *port = &card->ports[desc->stat & 2041da177e4SLinus Torvalds PACKET_PORT_MASK]; 2051da177e4SLinus Torvalds struct net_device *dev = port->dev; 2061da177e4SLinus Torvalds 2071da177e4SLinus Torvalds if (!skb) 208198191c4SKrzysztof Halasa dev->stats.rx_dropped++; 2091da177e4SLinus Torvalds else { 2101da177e4SLinus Torvalds pci_unmap_single(card->pdev, desc->address, 2111da177e4SLinus Torvalds BUFFER_LENGTH, 2121da177e4SLinus Torvalds PCI_DMA_FROMDEVICE); 2131da177e4SLinus Torvalds skb_put(skb, desc->length); 2141da177e4SLinus Torvalds 2151da177e4SLinus Torvalds #ifdef DEBUG_PKT 2161da177e4SLinus Torvalds printk(KERN_DEBUG "%s RX(%i):", dev->name, 2171da177e4SLinus Torvalds skb->len); 2181da177e4SLinus Torvalds debug_frame(skb); 2191da177e4SLinus Torvalds #endif 220198191c4SKrzysztof Halasa dev->stats.rx_packets++; 221198191c4SKrzysztof Halasa dev->stats.rx_bytes += skb->len; 2221da177e4SLinus Torvalds skb->protocol = hdlc_type_trans(skb, dev); 2231da177e4SLinus Torvalds netif_rx(skb); 2241da177e4SLinus Torvalds skb = NULL; 2251da177e4SLinus Torvalds } 2261da177e4SLinus Torvalds 2271da177e4SLinus Torvalds if (!skb) { 2281da177e4SLinus Torvalds skb = dev_alloc_skb(BUFFER_LENGTH); 2291da177e4SLinus Torvalds desc->address = skb ? 2301da177e4SLinus Torvalds pci_map_single(card->pdev, skb->data, 2311da177e4SLinus Torvalds BUFFER_LENGTH, 2321da177e4SLinus Torvalds PCI_DMA_FROMDEVICE) : 0; 2331da177e4SLinus Torvalds card->rx_skbs[card->rx_in] = skb; 2341da177e4SLinus Torvalds } 2351da177e4SLinus Torvalds } 2361da177e4SLinus Torvalds desc->stat = PACKET_EMPTY; /* Free descriptor */ 2371da177e4SLinus Torvalds card->rx_in = (card->rx_in + 1) % RX_QUEUE_LENGTH; 2381da177e4SLinus Torvalds } 2391da177e4SLinus Torvalds } 2401da177e4SLinus Torvalds 2411da177e4SLinus Torvalds 2421da177e4SLinus Torvalds 2437d12e780SDavid Howells static irqreturn_t wanxl_intr(int irq, void* dev_id) 2441da177e4SLinus Torvalds { 245db569581SHimangi Saraogi struct card *card = dev_id; 2461da177e4SLinus Torvalds int i; 2471da177e4SLinus Torvalds u32 stat; 2481da177e4SLinus Torvalds int handled = 0; 2491da177e4SLinus Torvalds 2501da177e4SLinus Torvalds 2511da177e4SLinus Torvalds while((stat = readl(card->plx + PLX_DOORBELL_FROM_CARD)) != 0) { 2521da177e4SLinus Torvalds handled = 1; 2531da177e4SLinus Torvalds writel(stat, card->plx + PLX_DOORBELL_FROM_CARD); 2541da177e4SLinus Torvalds 2551da177e4SLinus Torvalds for (i = 0; i < card->n_ports; i++) { 2561da177e4SLinus Torvalds if (stat & (1 << (DOORBELL_FROM_CARD_TX_0 + i))) 2571da177e4SLinus Torvalds wanxl_tx_intr(&card->ports[i]); 2581da177e4SLinus Torvalds if (stat & (1 << (DOORBELL_FROM_CARD_CABLE_0 + i))) 2591da177e4SLinus Torvalds wanxl_cable_intr(&card->ports[i]); 2601da177e4SLinus Torvalds } 2611da177e4SLinus Torvalds if (stat & (1 << DOORBELL_FROM_CARD_RX)) 2621da177e4SLinus Torvalds wanxl_rx_intr(card); 2631da177e4SLinus Torvalds } 2641da177e4SLinus Torvalds 2651da177e4SLinus Torvalds return IRQ_RETVAL(handled); 2661da177e4SLinus Torvalds } 2671da177e4SLinus Torvalds 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvalds 270d71a6749SStephen Hemminger static netdev_tx_t wanxl_xmit(struct sk_buff *skb, struct net_device *dev) 2711da177e4SLinus Torvalds { 272db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 2731da177e4SLinus Torvalds desc_t *desc; 2741da177e4SLinus Torvalds 2751da177e4SLinus Torvalds spin_lock(&port->lock); 2761da177e4SLinus Torvalds 2771da177e4SLinus Torvalds desc = &get_status(port)->tx_descs[port->tx_out]; 2781da177e4SLinus Torvalds if (desc->stat != PACKET_EMPTY) { 2791da177e4SLinus Torvalds /* should never happen - previous xmit should stop queue */ 2801da177e4SLinus Torvalds #ifdef DEBUG_PKT 2811da177e4SLinus Torvalds printk(KERN_DEBUG "%s: transmitter buffer full\n", dev->name); 2821da177e4SLinus Torvalds #endif 2831da177e4SLinus Torvalds netif_stop_queue(dev); 2840311ee22SDan Carpenter spin_unlock(&port->lock); 2855b548140SPatrick McHardy return NETDEV_TX_BUSY; /* request packet to be queued */ 2861da177e4SLinus Torvalds } 2871da177e4SLinus Torvalds 2881da177e4SLinus Torvalds #ifdef DEBUG_PKT 2891da177e4SLinus Torvalds printk(KERN_DEBUG "%s TX(%i):", dev->name, skb->len); 2901da177e4SLinus Torvalds debug_frame(skb); 2911da177e4SLinus Torvalds #endif 2921da177e4SLinus Torvalds 2931da177e4SLinus Torvalds port->tx_skbs[port->tx_out] = skb; 2941da177e4SLinus Torvalds desc->address = pci_map_single(port->card->pdev, skb->data, skb->len, 2951da177e4SLinus Torvalds PCI_DMA_TODEVICE); 2961da177e4SLinus Torvalds desc->length = skb->len; 2971da177e4SLinus Torvalds desc->stat = PACKET_FULL; 2981da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_TX_0 + port->node), 2991da177e4SLinus Torvalds port->card->plx + PLX_DOORBELL_TO_CARD); 3001da177e4SLinus Torvalds 3011da177e4SLinus Torvalds port->tx_out = (port->tx_out + 1) % TX_BUFFERS; 3021da177e4SLinus Torvalds 3031da177e4SLinus Torvalds if (get_status(port)->tx_descs[port->tx_out].stat != PACKET_EMPTY) { 3041da177e4SLinus Torvalds netif_stop_queue(dev); 3051da177e4SLinus Torvalds #ifdef DEBUG_PKT 3061da177e4SLinus Torvalds printk(KERN_DEBUG "%s: transmitter buffer full\n", dev->name); 3071da177e4SLinus Torvalds #endif 3081da177e4SLinus Torvalds } 3091da177e4SLinus Torvalds 3101da177e4SLinus Torvalds spin_unlock(&port->lock); 311ec634fe3SPatrick McHardy return NETDEV_TX_OK; 3121da177e4SLinus Torvalds } 3131da177e4SLinus Torvalds 3141da177e4SLinus Torvalds 3151da177e4SLinus Torvalds 3161da177e4SLinus Torvalds static int wanxl_attach(struct net_device *dev, unsigned short encoding, 3171da177e4SLinus Torvalds unsigned short parity) 3181da177e4SLinus Torvalds { 319db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 3201da177e4SLinus Torvalds 3211da177e4SLinus Torvalds if (encoding != ENCODING_NRZ && 3221da177e4SLinus Torvalds encoding != ENCODING_NRZI) 3231da177e4SLinus Torvalds return -EINVAL; 3241da177e4SLinus Torvalds 3251da177e4SLinus Torvalds if (parity != PARITY_NONE && 3261da177e4SLinus Torvalds parity != PARITY_CRC32_PR1_CCITT && 3271da177e4SLinus Torvalds parity != PARITY_CRC16_PR1_CCITT && 3281da177e4SLinus Torvalds parity != PARITY_CRC32_PR0_CCITT && 3291da177e4SLinus Torvalds parity != PARITY_CRC16_PR0_CCITT) 3301da177e4SLinus Torvalds return -EINVAL; 3311da177e4SLinus Torvalds 3321da177e4SLinus Torvalds get_status(port)->encoding = encoding; 3331da177e4SLinus Torvalds get_status(port)->parity = parity; 3341da177e4SLinus Torvalds return 0; 3351da177e4SLinus Torvalds } 3361da177e4SLinus Torvalds 3371da177e4SLinus Torvalds 3381da177e4SLinus Torvalds 3391da177e4SLinus Torvalds static int wanxl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 3401da177e4SLinus Torvalds { 3411da177e4SLinus Torvalds const size_t size = sizeof(sync_serial_settings); 3421da177e4SLinus Torvalds sync_serial_settings line; 343db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 3441da177e4SLinus Torvalds 3451da177e4SLinus Torvalds if (cmd != SIOCWANDEV) 3461da177e4SLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 3471da177e4SLinus Torvalds 3481da177e4SLinus Torvalds switch (ifr->ifr_settings.type) { 3491da177e4SLinus Torvalds case IF_GET_IFACE: 3501da177e4SLinus Torvalds ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL; 3511da177e4SLinus Torvalds if (ifr->ifr_settings.size < size) { 3521da177e4SLinus Torvalds ifr->ifr_settings.size = size; /* data size wanted */ 3531da177e4SLinus Torvalds return -ENOBUFS; 3541da177e4SLinus Torvalds } 3552b13d06cSSalva Peiró memset(&line, 0, sizeof(line)); 3561da177e4SLinus Torvalds line.clock_type = get_status(port)->clocking; 3571da177e4SLinus Torvalds line.clock_rate = 0; 3581da177e4SLinus Torvalds line.loopback = 0; 3591da177e4SLinus Torvalds 3601da177e4SLinus Torvalds if (copy_to_user(ifr->ifr_settings.ifs_ifsu.sync, &line, size)) 3611da177e4SLinus Torvalds return -EFAULT; 3621da177e4SLinus Torvalds return 0; 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds case IF_IFACE_SYNC_SERIAL: 3651da177e4SLinus Torvalds if (!capable(CAP_NET_ADMIN)) 3661da177e4SLinus Torvalds return -EPERM; 3671da177e4SLinus Torvalds if (dev->flags & IFF_UP) 3681da177e4SLinus Torvalds return -EBUSY; 3691da177e4SLinus Torvalds 3701da177e4SLinus Torvalds if (copy_from_user(&line, ifr->ifr_settings.ifs_ifsu.sync, 3711da177e4SLinus Torvalds size)) 3721da177e4SLinus Torvalds return -EFAULT; 3731da177e4SLinus Torvalds 3741da177e4SLinus Torvalds if (line.clock_type != CLOCK_EXT && 3751da177e4SLinus Torvalds line.clock_type != CLOCK_TXFROMRX) 3761da177e4SLinus Torvalds return -EINVAL; /* No such clock setting */ 3771da177e4SLinus Torvalds 3781da177e4SLinus Torvalds if (line.loopback != 0) 3791da177e4SLinus Torvalds return -EINVAL; 3801da177e4SLinus Torvalds 3811da177e4SLinus Torvalds get_status(port)->clocking = line.clock_type; 3821da177e4SLinus Torvalds return 0; 3831da177e4SLinus Torvalds 3841da177e4SLinus Torvalds default: 3851da177e4SLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 3861da177e4SLinus Torvalds } 3871da177e4SLinus Torvalds } 3881da177e4SLinus Torvalds 3891da177e4SLinus Torvalds 3901da177e4SLinus Torvalds 3911da177e4SLinus Torvalds static int wanxl_open(struct net_device *dev) 3921da177e4SLinus Torvalds { 393db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 3941da177e4SLinus Torvalds u8 __iomem *dbr = port->card->plx + PLX_DOORBELL_TO_CARD; 3951da177e4SLinus Torvalds unsigned long timeout; 3961da177e4SLinus Torvalds int i; 3971da177e4SLinus Torvalds 3981da177e4SLinus Torvalds if (get_status(port)->open) { 39912a3bfefSJoe Perches netdev_err(dev, "port already open\n"); 4001da177e4SLinus Torvalds return -EIO; 4011da177e4SLinus Torvalds } 4021da177e4SLinus Torvalds if ((i = hdlc_open(dev)) != 0) 4031da177e4SLinus Torvalds return i; 4041da177e4SLinus Torvalds 4051da177e4SLinus Torvalds port->tx_in = port->tx_out = 0; 4061da177e4SLinus Torvalds for (i = 0; i < TX_BUFFERS; i++) 4071da177e4SLinus Torvalds get_status(port)->tx_descs[i].stat = PACKET_EMPTY; 4081da177e4SLinus Torvalds /* signal the card */ 4091da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_OPEN_0 + port->node), dbr); 4101da177e4SLinus Torvalds 4111da177e4SLinus Torvalds timeout = jiffies + HZ; 412d157e023SHannes Eder do { 4131da177e4SLinus Torvalds if (get_status(port)->open) { 4141da177e4SLinus Torvalds netif_start_queue(dev); 4151da177e4SLinus Torvalds return 0; 4161da177e4SLinus Torvalds } 417d157e023SHannes Eder } while (time_after(timeout, jiffies)); 4181da177e4SLinus Torvalds 41912a3bfefSJoe Perches netdev_err(dev, "unable to open port\n"); 4201da177e4SLinus Torvalds /* ask the card to close the port, should it be still alive */ 4211da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_CLOSE_0 + port->node), dbr); 4221da177e4SLinus Torvalds return -EFAULT; 4231da177e4SLinus Torvalds } 4241da177e4SLinus Torvalds 4251da177e4SLinus Torvalds 4261da177e4SLinus Torvalds 4271da177e4SLinus Torvalds static int wanxl_close(struct net_device *dev) 4281da177e4SLinus Torvalds { 429db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 4301da177e4SLinus Torvalds unsigned long timeout; 4311da177e4SLinus Torvalds int i; 4321da177e4SLinus Torvalds 4331da177e4SLinus Torvalds hdlc_close(dev); 4341da177e4SLinus Torvalds /* signal the card */ 4351da177e4SLinus Torvalds writel(1 << (DOORBELL_TO_CARD_CLOSE_0 + port->node), 4361da177e4SLinus Torvalds port->card->plx + PLX_DOORBELL_TO_CARD); 4371da177e4SLinus Torvalds 4381da177e4SLinus Torvalds timeout = jiffies + HZ; 439d157e023SHannes Eder do { 4401da177e4SLinus Torvalds if (!get_status(port)->open) 4411da177e4SLinus Torvalds break; 442d157e023SHannes Eder } while (time_after(timeout, jiffies)); 4431da177e4SLinus Torvalds 4441da177e4SLinus Torvalds if (get_status(port)->open) 44512a3bfefSJoe Perches netdev_err(dev, "unable to close port\n"); 4461da177e4SLinus Torvalds 4471da177e4SLinus Torvalds netif_stop_queue(dev); 4481da177e4SLinus Torvalds 4491da177e4SLinus Torvalds for (i = 0; i < TX_BUFFERS; i++) { 4501da177e4SLinus Torvalds desc_t *desc = &get_status(port)->tx_descs[i]; 4511da177e4SLinus Torvalds 4521da177e4SLinus Torvalds if (desc->stat != PACKET_EMPTY) { 4531da177e4SLinus Torvalds desc->stat = PACKET_EMPTY; 4541da177e4SLinus Torvalds pci_unmap_single(port->card->pdev, desc->address, 4551da177e4SLinus Torvalds port->tx_skbs[i]->len, 4561da177e4SLinus Torvalds PCI_DMA_TODEVICE); 4571da177e4SLinus Torvalds dev_kfree_skb(port->tx_skbs[i]); 4581da177e4SLinus Torvalds } 4591da177e4SLinus Torvalds } 4601da177e4SLinus Torvalds return 0; 4611da177e4SLinus Torvalds } 4621da177e4SLinus Torvalds 4631da177e4SLinus Torvalds 4641da177e4SLinus Torvalds 4651da177e4SLinus Torvalds static struct net_device_stats *wanxl_get_stats(struct net_device *dev) 4661da177e4SLinus Torvalds { 467db569581SHimangi Saraogi struct port *port = dev_to_port(dev); 4681da177e4SLinus Torvalds 469198191c4SKrzysztof Halasa dev->stats.rx_over_errors = get_status(port)->rx_overruns; 470198191c4SKrzysztof Halasa dev->stats.rx_frame_errors = get_status(port)->rx_frame_errors; 471198191c4SKrzysztof Halasa dev->stats.rx_errors = dev->stats.rx_over_errors + 472198191c4SKrzysztof Halasa dev->stats.rx_frame_errors; 473198191c4SKrzysztof Halasa return &dev->stats; 4741da177e4SLinus Torvalds } 4751da177e4SLinus Torvalds 4761da177e4SLinus Torvalds 4771da177e4SLinus Torvalds 478db569581SHimangi Saraogi static int wanxl_puts_command(struct card *card, u32 cmd) 4791da177e4SLinus Torvalds { 4801da177e4SLinus Torvalds unsigned long timeout = jiffies + 5 * HZ; 4811da177e4SLinus Torvalds 4821da177e4SLinus Torvalds writel(cmd, card->plx + PLX_MAILBOX_1); 4831da177e4SLinus Torvalds do { 4841da177e4SLinus Torvalds if (readl(card->plx + PLX_MAILBOX_1) == 0) 4851da177e4SLinus Torvalds return 0; 4861da177e4SLinus Torvalds 4871da177e4SLinus Torvalds schedule(); 4881da177e4SLinus Torvalds }while (time_after(timeout, jiffies)); 4891da177e4SLinus Torvalds 4901da177e4SLinus Torvalds return -1; 4911da177e4SLinus Torvalds } 4921da177e4SLinus Torvalds 4931da177e4SLinus Torvalds 4941da177e4SLinus Torvalds 495db569581SHimangi Saraogi static void wanxl_reset(struct card *card) 4961da177e4SLinus Torvalds { 4971da177e4SLinus Torvalds u32 old_value = readl(card->plx + PLX_CONTROL) & ~PLX_CTL_RESET; 4981da177e4SLinus Torvalds 4991da177e4SLinus Torvalds writel(0x80, card->plx + PLX_MAILBOX_0); 5001da177e4SLinus Torvalds writel(old_value | PLX_CTL_RESET, card->plx + PLX_CONTROL); 5011da177e4SLinus Torvalds readl(card->plx + PLX_CONTROL); /* wait for posted write */ 5021da177e4SLinus Torvalds udelay(1); 5031da177e4SLinus Torvalds writel(old_value, card->plx + PLX_CONTROL); 5041da177e4SLinus Torvalds readl(card->plx + PLX_CONTROL); /* wait for posted write */ 5051da177e4SLinus Torvalds } 5061da177e4SLinus Torvalds 5071da177e4SLinus Torvalds 5081da177e4SLinus Torvalds 5091da177e4SLinus Torvalds static void wanxl_pci_remove_one(struct pci_dev *pdev) 5101da177e4SLinus Torvalds { 511db569581SHimangi Saraogi struct card *card = pci_get_drvdata(pdev); 5121da177e4SLinus Torvalds int i; 5131da177e4SLinus Torvalds 5141da177e4SLinus Torvalds for (i = 0; i < card->n_ports; i++) { 5151da177e4SLinus Torvalds unregister_hdlc_device(card->ports[i].dev); 5161da177e4SLinus Torvalds free_netdev(card->ports[i].dev); 5171da177e4SLinus Torvalds } 5181da177e4SLinus Torvalds 5191da177e4SLinus Torvalds /* unregister and free all host resources */ 5201da177e4SLinus Torvalds if (card->irq) 5211da177e4SLinus Torvalds free_irq(card->irq, card); 5221da177e4SLinus Torvalds 5231da177e4SLinus Torvalds wanxl_reset(card); 5241da177e4SLinus Torvalds 5251da177e4SLinus Torvalds for (i = 0; i < RX_QUEUE_LENGTH; i++) 5261da177e4SLinus Torvalds if (card->rx_skbs[i]) { 5271da177e4SLinus Torvalds pci_unmap_single(card->pdev, 5281da177e4SLinus Torvalds card->status->rx_descs[i].address, 5291da177e4SLinus Torvalds BUFFER_LENGTH, PCI_DMA_FROMDEVICE); 5301da177e4SLinus Torvalds dev_kfree_skb(card->rx_skbs[i]); 5311da177e4SLinus Torvalds } 5321da177e4SLinus Torvalds 5331da177e4SLinus Torvalds if (card->plx) 5341da177e4SLinus Torvalds iounmap(card->plx); 5351da177e4SLinus Torvalds 5361da177e4SLinus Torvalds if (card->status) 537db569581SHimangi Saraogi pci_free_consistent(pdev, sizeof(struct card_status), 5381da177e4SLinus Torvalds card->status, card->status_address); 5391da177e4SLinus Torvalds 5401da177e4SLinus Torvalds pci_release_regions(pdev); 5411da177e4SLinus Torvalds pci_disable_device(pdev); 5421da177e4SLinus Torvalds kfree(card); 5431da177e4SLinus Torvalds } 5441da177e4SLinus Torvalds 5451da177e4SLinus Torvalds 5461da177e4SLinus Torvalds #include "wanxlfw.inc" 5471da177e4SLinus Torvalds 548991990a1SKrzysztof Hałasa static const struct net_device_ops wanxl_ops = { 549991990a1SKrzysztof Hałasa .ndo_open = wanxl_open, 550991990a1SKrzysztof Hałasa .ndo_stop = wanxl_close, 551991990a1SKrzysztof Hałasa .ndo_start_xmit = hdlc_start_xmit, 552991990a1SKrzysztof Hałasa .ndo_do_ioctl = wanxl_ioctl, 553991990a1SKrzysztof Hałasa .ndo_get_stats = wanxl_get_stats, 554991990a1SKrzysztof Hałasa }; 555991990a1SKrzysztof Hałasa 556aeea6bbfSBill Pemberton static int wanxl_pci_init_one(struct pci_dev *pdev, 5571da177e4SLinus Torvalds const struct pci_device_id *ent) 5581da177e4SLinus Torvalds { 559db569581SHimangi Saraogi struct card *card; 5601da177e4SLinus Torvalds u32 ramsize, stat; 5611da177e4SLinus Torvalds unsigned long timeout; 5621da177e4SLinus Torvalds u32 plx_phy; /* PLX PCI base address */ 5631da177e4SLinus Torvalds u32 mem_phy; /* memory PCI base addr */ 5641da177e4SLinus Torvalds u8 __iomem *mem; /* memory virtual base addr */ 565a3deec5bSGustavo A. R. Silva int i, ports; 5661da177e4SLinus Torvalds 5671da177e4SLinus Torvalds #ifndef MODULE 56812a3bfefSJoe Perches pr_info_once("%s\n", version); 5691da177e4SLinus Torvalds #endif 5701da177e4SLinus Torvalds 5711da177e4SLinus Torvalds i = pci_enable_device(pdev); 5721da177e4SLinus Torvalds if (i) 5731da177e4SLinus Torvalds return i; 5741da177e4SLinus Torvalds 5751da177e4SLinus Torvalds /* QUICC can only access first 256 MB of host RAM directly, 5761da177e4SLinus Torvalds but PLX9060 DMA does 32-bits for actual packet data transfers */ 5771da177e4SLinus Torvalds 5781da177e4SLinus Torvalds /* FIXME when PCI/DMA subsystems are fixed. 5791da177e4SLinus Torvalds We set both dma_mask and consistent_dma_mask to 28 bits 5801da177e4SLinus Torvalds and pray pci_alloc_consistent() will use this info. It should 5811da177e4SLinus Torvalds work on most platforms */ 582ce0b6201SYang Hongyang if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(28)) || 583ce0b6201SYang Hongyang pci_set_dma_mask(pdev, DMA_BIT_MASK(28))) { 58412a3bfefSJoe Perches pr_err("No usable DMA configuration\n"); 5857e074af2SSaurabh Sengar pci_disable_device(pdev); 5861da177e4SLinus Torvalds return -EIO; 5871da177e4SLinus Torvalds } 5881da177e4SLinus Torvalds 5891da177e4SLinus Torvalds i = pci_request_regions(pdev, "wanXL"); 5901da177e4SLinus Torvalds if (i) { 5911da177e4SLinus Torvalds pci_disable_device(pdev); 5921da177e4SLinus Torvalds return i; 5931da177e4SLinus Torvalds } 5941da177e4SLinus Torvalds 5951da177e4SLinus Torvalds switch (pdev->device) { 5961da177e4SLinus Torvalds case PCI_DEVICE_ID_SBE_WANXL100: ports = 1; break; 5971da177e4SLinus Torvalds case PCI_DEVICE_ID_SBE_WANXL200: ports = 2; break; 5981da177e4SLinus Torvalds default: ports = 4; 5991da177e4SLinus Torvalds } 6001da177e4SLinus Torvalds 601a3deec5bSGustavo A. R. Silva card = kzalloc(struct_size(card, ports, ports), GFP_KERNEL); 6021da177e4SLinus Torvalds if (card == NULL) { 6031da177e4SLinus Torvalds pci_release_regions(pdev); 6041da177e4SLinus Torvalds pci_disable_device(pdev); 6051da177e4SLinus Torvalds return -ENOBUFS; 6061da177e4SLinus Torvalds } 6071da177e4SLinus Torvalds 6081da177e4SLinus Torvalds pci_set_drvdata(pdev, card); 6091da177e4SLinus Torvalds card->pdev = pdev; 6101da177e4SLinus Torvalds 611db569581SHimangi Saraogi card->status = pci_alloc_consistent(pdev, 612db569581SHimangi Saraogi sizeof(struct card_status), 6131da177e4SLinus Torvalds &card->status_address); 6141da177e4SLinus Torvalds if (card->status == NULL) { 6151da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6161da177e4SLinus Torvalds return -ENOBUFS; 6171da177e4SLinus Torvalds } 6181da177e4SLinus Torvalds 6191da177e4SLinus Torvalds #ifdef DEBUG_PCI 6201da177e4SLinus Torvalds printk(KERN_DEBUG "wanXL %s: pci_alloc_consistent() returned memory" 6211da177e4SLinus Torvalds " at 0x%LX\n", pci_name(pdev), 6221da177e4SLinus Torvalds (unsigned long long)card->status_address); 6231da177e4SLinus Torvalds #endif 6241da177e4SLinus Torvalds 6251da177e4SLinus Torvalds /* FIXME when PCI/DMA subsystems are fixed. 6261da177e4SLinus Torvalds We set both dma_mask and consistent_dma_mask back to 32 bits 6271da177e4SLinus Torvalds to indicate the card can do 32-bit DMA addressing */ 628284901a9SYang Hongyang if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) || 629284901a9SYang Hongyang pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { 63012a3bfefSJoe Perches pr_err("No usable DMA configuration\n"); 6311da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6321da177e4SLinus Torvalds return -EIO; 6331da177e4SLinus Torvalds } 6341da177e4SLinus Torvalds 6351da177e4SLinus Torvalds /* set up PLX mapping */ 6361da177e4SLinus Torvalds plx_phy = pci_resource_start(pdev, 0); 6374446065aSKrzysztof Halasa 6384bdc0d67SChristoph Hellwig card->plx = ioremap(plx_phy, 0x70); 6394446065aSKrzysztof Halasa if (!card->plx) { 64012a3bfefSJoe Perches pr_err("ioremap() failed\n"); 6414446065aSKrzysztof Halasa wanxl_pci_remove_one(pdev); 6424446065aSKrzysztof Halasa return -EFAULT; 6434446065aSKrzysztof Halasa } 6441da177e4SLinus Torvalds 6451da177e4SLinus Torvalds #if RESET_WHILE_LOADING 6461da177e4SLinus Torvalds wanxl_reset(card); 6471da177e4SLinus Torvalds #endif 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvalds timeout = jiffies + 20 * HZ; 6501da177e4SLinus Torvalds while ((stat = readl(card->plx + PLX_MAILBOX_0)) != 0) { 6511da177e4SLinus Torvalds if (time_before(timeout, jiffies)) { 65212a3bfefSJoe Perches pr_warn("%s: timeout waiting for PUTS to complete\n", 65312a3bfefSJoe Perches pci_name(pdev)); 6541da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6551da177e4SLinus Torvalds return -ENODEV; 6561da177e4SLinus Torvalds } 6571da177e4SLinus Torvalds 6581da177e4SLinus Torvalds switch(stat & 0xC0) { 6591da177e4SLinus Torvalds case 0x00: /* hmm - PUTS completed with non-zero code? */ 6601da177e4SLinus Torvalds case 0x80: /* PUTS still testing the hardware */ 6611da177e4SLinus Torvalds break; 6621da177e4SLinus Torvalds 6631da177e4SLinus Torvalds default: 66412a3bfefSJoe Perches pr_warn("%s: PUTS test 0x%X failed\n", 66512a3bfefSJoe Perches pci_name(pdev), stat & 0x30); 6661da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6671da177e4SLinus Torvalds return -ENODEV; 6681da177e4SLinus Torvalds } 6691da177e4SLinus Torvalds 6701da177e4SLinus Torvalds schedule(); 6711da177e4SLinus Torvalds } 6721da177e4SLinus Torvalds 6731da177e4SLinus Torvalds /* get on-board memory size (PUTS detects no more than 4 MB) */ 6741da177e4SLinus Torvalds ramsize = readl(card->plx + PLX_MAILBOX_2) & MBX2_MEMSZ_MASK; 6751da177e4SLinus Torvalds 6761da177e4SLinus Torvalds /* set up on-board RAM mapping */ 6771da177e4SLinus Torvalds mem_phy = pci_resource_start(pdev, 2); 6781da177e4SLinus Torvalds 6791da177e4SLinus Torvalds 6801da177e4SLinus Torvalds /* sanity check the board's reported memory size */ 6811da177e4SLinus Torvalds if (ramsize < BUFFERS_ADDR + 6821da177e4SLinus Torvalds (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * ports) { 68312a3bfefSJoe Perches pr_warn("%s: no enough on-board RAM (%u bytes detected, %u bytes required)\n", 68412a3bfefSJoe Perches pci_name(pdev), ramsize, 68512a3bfefSJoe Perches BUFFERS_ADDR + 6861da177e4SLinus Torvalds (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * ports); 6871da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6881da177e4SLinus Torvalds return -ENODEV; 6891da177e4SLinus Torvalds } 6901da177e4SLinus Torvalds 6911da177e4SLinus Torvalds if (wanxl_puts_command(card, MBX1_CMD_BSWAP)) { 69212a3bfefSJoe Perches pr_warn("%s: unable to Set Byte Swap Mode\n", pci_name(pdev)); 6931da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 6941da177e4SLinus Torvalds return -ENODEV; 6951da177e4SLinus Torvalds } 6961da177e4SLinus Torvalds 6971da177e4SLinus Torvalds for (i = 0; i < RX_QUEUE_LENGTH; i++) { 6981da177e4SLinus Torvalds struct sk_buff *skb = dev_alloc_skb(BUFFER_LENGTH); 6991da177e4SLinus Torvalds card->rx_skbs[i] = skb; 7001da177e4SLinus Torvalds if (skb) 7011da177e4SLinus Torvalds card->status->rx_descs[i].address = 7021da177e4SLinus Torvalds pci_map_single(card->pdev, skb->data, 7031da177e4SLinus Torvalds BUFFER_LENGTH, 7041da177e4SLinus Torvalds PCI_DMA_FROMDEVICE); 7051da177e4SLinus Torvalds } 7061da177e4SLinus Torvalds 7074bdc0d67SChristoph Hellwig mem = ioremap(mem_phy, PDM_OFFSET + sizeof(firmware)); 7084446065aSKrzysztof Halasa if (!mem) { 70912a3bfefSJoe Perches pr_err("ioremap() failed\n"); 7104446065aSKrzysztof Halasa wanxl_pci_remove_one(pdev); 7114446065aSKrzysztof Halasa return -EFAULT; 7124446065aSKrzysztof Halasa } 7134446065aSKrzysztof Halasa 7141da177e4SLinus Torvalds for (i = 0; i < sizeof(firmware); i += 4) 71590458401SAl Viro writel(ntohl(*(__be32*)(firmware + i)), mem + PDM_OFFSET + i); 7161da177e4SLinus Torvalds 7171da177e4SLinus Torvalds for (i = 0; i < ports; i++) 7181da177e4SLinus Torvalds writel(card->status_address + 7191da177e4SLinus Torvalds (void *)&card->status->port_status[i] - 7201da177e4SLinus Torvalds (void *)card->status, mem + PDM_OFFSET + 4 + i * 4); 7211da177e4SLinus Torvalds writel(card->status_address, mem + PDM_OFFSET + 20); 7221da177e4SLinus Torvalds writel(PDM_OFFSET, mem); 7231da177e4SLinus Torvalds iounmap(mem); 7241da177e4SLinus Torvalds 7251da177e4SLinus Torvalds writel(0, card->plx + PLX_MAILBOX_5); 7261da177e4SLinus Torvalds 7271da177e4SLinus Torvalds if (wanxl_puts_command(card, MBX1_CMD_ABORTJ)) { 72812a3bfefSJoe Perches pr_warn("%s: unable to Abort and Jump\n", pci_name(pdev)); 7291da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7301da177e4SLinus Torvalds return -ENODEV; 7311da177e4SLinus Torvalds } 7321da177e4SLinus Torvalds 7331da177e4SLinus Torvalds timeout = jiffies + 5 * HZ; 7341da177e4SLinus Torvalds do { 7351da177e4SLinus Torvalds if ((stat = readl(card->plx + PLX_MAILBOX_5)) != 0) 7361da177e4SLinus Torvalds break; 7371da177e4SLinus Torvalds schedule(); 7381da177e4SLinus Torvalds }while (time_after(timeout, jiffies)); 7391da177e4SLinus Torvalds 7401da177e4SLinus Torvalds if (!stat) { 74112a3bfefSJoe Perches pr_warn("%s: timeout while initializing card firmware\n", 74212a3bfefSJoe Perches pci_name(pdev)); 7431da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7441da177e4SLinus Torvalds return -ENODEV; 7451da177e4SLinus Torvalds } 7461da177e4SLinus Torvalds 7471da177e4SLinus Torvalds #if DETECT_RAM 7481da177e4SLinus Torvalds ramsize = stat; 7491da177e4SLinus Torvalds #endif 7501da177e4SLinus Torvalds 75112a3bfefSJoe Perches pr_info("%s: at 0x%X, %u KB of RAM at 0x%X, irq %u\n", 7521da177e4SLinus Torvalds pci_name(pdev), plx_phy, ramsize / 1024, mem_phy, pdev->irq); 7531da177e4SLinus Torvalds 7541da177e4SLinus Torvalds /* Allocate IRQ */ 7551fb9df5dSThomas Gleixner if (request_irq(pdev->irq, wanxl_intr, IRQF_SHARED, "wanXL", card)) { 75612a3bfefSJoe Perches pr_warn("%s: could not allocate IRQ%i\n", 7571da177e4SLinus Torvalds pci_name(pdev), pdev->irq); 7581da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7591da177e4SLinus Torvalds return -EBUSY; 7601da177e4SLinus Torvalds } 7611da177e4SLinus Torvalds card->irq = pdev->irq; 7621da177e4SLinus Torvalds 7631da177e4SLinus Torvalds for (i = 0; i < ports; i++) { 7641da177e4SLinus Torvalds hdlc_device *hdlc; 765db569581SHimangi Saraogi struct port *port = &card->ports[i]; 7661da177e4SLinus Torvalds struct net_device *dev = alloc_hdlcdev(port); 7671da177e4SLinus Torvalds if (!dev) { 76812a3bfefSJoe Perches pr_err("%s: unable to allocate memory\n", 76912a3bfefSJoe Perches pci_name(pdev)); 7701da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7711da177e4SLinus Torvalds return -ENOMEM; 7721da177e4SLinus Torvalds } 7731da177e4SLinus Torvalds 7741da177e4SLinus Torvalds port->dev = dev; 7751da177e4SLinus Torvalds hdlc = dev_to_hdlc(dev); 7761da177e4SLinus Torvalds spin_lock_init(&port->lock); 7771da177e4SLinus Torvalds dev->tx_queue_len = 50; 778991990a1SKrzysztof Hałasa dev->netdev_ops = &wanxl_ops; 7791da177e4SLinus Torvalds hdlc->attach = wanxl_attach; 7801da177e4SLinus Torvalds hdlc->xmit = wanxl_xmit; 7811da177e4SLinus Torvalds port->card = card; 7821da177e4SLinus Torvalds port->node = i; 7831da177e4SLinus Torvalds get_status(port)->clocking = CLOCK_EXT; 7841da177e4SLinus Torvalds if (register_hdlc_device(dev)) { 78512a3bfefSJoe Perches pr_err("%s: unable to register hdlc device\n", 78612a3bfefSJoe Perches pci_name(pdev)); 7871da177e4SLinus Torvalds free_netdev(dev); 7881da177e4SLinus Torvalds wanxl_pci_remove_one(pdev); 7891da177e4SLinus Torvalds return -ENOBUFS; 7901da177e4SLinus Torvalds } 7911da177e4SLinus Torvalds card->n_ports++; 7921da177e4SLinus Torvalds } 7931da177e4SLinus Torvalds 79412a3bfefSJoe Perches pr_info("%s: port", pci_name(pdev)); 7951da177e4SLinus Torvalds for (i = 0; i < ports; i++) 79612a3bfefSJoe Perches pr_cont("%s #%i: %s", 79712a3bfefSJoe Perches i ? "," : "", i, card->ports[i].dev->name); 79812a3bfefSJoe Perches pr_cont("\n"); 7991da177e4SLinus Torvalds 8001da177e4SLinus Torvalds for (i = 0; i < ports; i++) 8011da177e4SLinus Torvalds wanxl_cable_intr(&card->ports[i]); /* get carrier status etc.*/ 8021da177e4SLinus Torvalds 8031da177e4SLinus Torvalds return 0; 8041da177e4SLinus Torvalds } 8051da177e4SLinus Torvalds 8069baa3c34SBenoit Taine static const struct pci_device_id wanxl_pci_tbl[] = { 8071da177e4SLinus Torvalds { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL100, PCI_ANY_ID, 8081da177e4SLinus Torvalds PCI_ANY_ID, 0, 0, 0 }, 8091da177e4SLinus Torvalds { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL200, PCI_ANY_ID, 8101da177e4SLinus Torvalds PCI_ANY_ID, 0, 0, 0 }, 8111da177e4SLinus Torvalds { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL400, PCI_ANY_ID, 8121da177e4SLinus Torvalds PCI_ANY_ID, 0, 0, 0 }, 8131da177e4SLinus Torvalds { 0, } 8141da177e4SLinus Torvalds }; 8151da177e4SLinus Torvalds 8161da177e4SLinus Torvalds 8171da177e4SLinus Torvalds static struct pci_driver wanxl_pci_driver = { 8181da177e4SLinus Torvalds .name = "wanXL", 8191da177e4SLinus Torvalds .id_table = wanxl_pci_tbl, 8201da177e4SLinus Torvalds .probe = wanxl_pci_init_one, 8211da177e4SLinus Torvalds .remove = wanxl_pci_remove_one, 8221da177e4SLinus Torvalds }; 8231da177e4SLinus Torvalds 8241da177e4SLinus Torvalds 8251da177e4SLinus Torvalds static int __init wanxl_init_module(void) 8261da177e4SLinus Torvalds { 8271da177e4SLinus Torvalds #ifdef MODULE 82812a3bfefSJoe Perches pr_info("%s\n", version); 8291da177e4SLinus Torvalds #endif 83029917620SJeff Garzik return pci_register_driver(&wanxl_pci_driver); 8311da177e4SLinus Torvalds } 8321da177e4SLinus Torvalds 8331da177e4SLinus Torvalds static void __exit wanxl_cleanup_module(void) 8341da177e4SLinus Torvalds { 8351da177e4SLinus Torvalds pci_unregister_driver(&wanxl_pci_driver); 8361da177e4SLinus Torvalds } 8371da177e4SLinus Torvalds 8381da177e4SLinus Torvalds 8391da177e4SLinus Torvalds MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>"); 8401da177e4SLinus Torvalds MODULE_DESCRIPTION("SBE Inc. wanXL serial port driver"); 8411da177e4SLinus Torvalds MODULE_LICENSE("GPL v2"); 8421da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, wanxl_pci_tbl); 8431da177e4SLinus Torvalds 8441da177e4SLinus Torvalds module_init(wanxl_init_module); 8451da177e4SLinus Torvalds module_exit(wanxl_cleanup_module); 846