1 files changed, 721 insertions, 0 deletions

diff --git a/drivers/firewire/nosy.c b/drivers/firewire/nosy.c
new file mode 100644
index 000000000000..8528b10763ed
--- /dev/null
+++ b/drivers/firewire/nosy.c
@@ -0,0 +1,721 @@
+/*
+ * nosy - Snoop mode driver for TI PCILynx 1394 controllers
+ * Copyright (C) 2002-2007 Kristian Høgsberg
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/kref.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/pci.h>
+#include <linux/poll.h>
+#include <linux/sched.h> /* required for linux/wait.h */
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/timex.h>
+#include <linux/uaccess.h>
+#include <linux/wait.h>
+
+#include <asm/atomic.h>
+#include <asm/byteorder.h>
+
+#include "nosy.h"
+#include "nosy-user.h"
+
+#define TCODE_PHY_PACKET                0x10
+#define PCI_DEVICE_ID_TI_PCILYNX        0x8000
+
+static char driver_name[] = KBUILD_MODNAME;
+
+/* this is the physical layout of a PCL, its size is 128 bytes */
+struct pcl {
+        __le32 next;
+        __le32 async_error_next;
+        u32 user_data;
+        __le32 pcl_status;
+        __le32 remaining_transfer_count;
+        __le32 next_data_buffer;
+        struct {
+                __le32 control;
+                __le32 pointer;
+        } buffer[13];
+};
+
+struct packet {
+        unsigned int length;
+        char data[0];
+};
+
+struct packet_buffer {
+        char *data;
+        size_t capacity;
+        long total_packet_count, lost_packet_count;
+        atomic_t size;
+        struct packet *head, *tail;
+        wait_queue_head_t wait;
+};
+
+struct pcilynx {
+        struct pci_dev *pci_device;
+        __iomem char *registers;
+
+        struct pcl *rcv_start_pcl, *rcv_pcl;
+        __le32 *rcv_buffer;
+
+        dma_addr_t rcv_start_pcl_bus, rcv_pcl_bus, rcv_buffer_bus;
+
+        spinlock_t client_list_lock;
+        struct list_head client_list;
+
+        struct miscdevice misc;
+        struct list_head link;
+        struct kref kref;
+};
+
+static inline struct pcilynx *
+lynx_get(struct pcilynx *lynx)
+{
+        kref_get(&lynx->kref);
+
+        return lynx;
+}
+
+static void
+lynx_release(struct kref *kref)
+{
+        kfree(container_of(kref, struct pcilynx, kref));
+}
+
+static inline void
+lynx_put(struct pcilynx *lynx)
+{
+        kref_put(&lynx->kref, lynx_release);
+}
+
+struct client {
+        struct pcilynx *lynx;
+        u32 tcode_mask;
+        struct packet_buffer buffer;
+        struct list_head link;
+};
+
+static DEFINE_MUTEX(card_mutex);
+static LIST_HEAD(card_list);
+
+static int
+packet_buffer_init(struct packet_buffer *buffer, size_t capacity)
+{
+        buffer->data = kmalloc(capacity, GFP_KERNEL);
+        if (buffer->data == NULL)
+                return -ENOMEM;
+        buffer->head = (struct packet *) buffer->data;
+        buffer->tail = (struct packet *) buffer->data;
+        buffer->capacity = capacity;
+        buffer->lost_packet_count = 0;
+        atomic_set(&buffer->size, 0);
+        init_waitqueue_head(&buffer->wait);
+
+        return 0;
+}
+
+static void
+packet_buffer_destroy(struct packet_buffer *buffer)
+{
+        kfree(buffer->data);
+}
+
+static int
+packet_buffer_get(struct client *client, char __user *data, size_t user_length)
+{
+        struct packet_buffer *buffer = &client->buffer;
+        size_t length;
+        char *end;
+
+        if (wait_event_interruptible(buffer->wait,
+                                     atomic_read(&buffer->size) > 0) ||
+                                     list_empty(&client->lynx->link))
+                return -ERESTARTSYS;
+
+        if (atomic_read(&buffer->size) == 0)
+                return -ENODEV;
+
+        /* FIXME: Check length <= user_length. */
+
+        end = buffer->data + buffer->capacity;
+        length = buffer->head->length;
+
+        if (&buffer->head->data[length] < end) {
+                if (copy_to_user(data, buffer->head->data, length))
+                        return -EFAULT;
+                buffer->head = (struct packet *) &buffer->head->data[length];
+        } else {
+                size_t split = end - buffer->head->data;
+
+                if (copy_to_user(data, buffer->head->data, split))
+                        return -EFAULT;
+                if (copy_to_user(data + split, buffer->data, length - split))
+                        return -EFAULT;
+                buffer->head = (struct packet *) &buffer->data[length - split];
+        }
+
+        /*
+         * Decrease buffer->size as the last thing, since this is what
+         * keeps the interrupt from overwriting the packet we are
+         * retrieving from the buffer.
+         */
+        atomic_sub(sizeof(struct packet) + length, &buffer->size);
+
+        return length;
+}
+
+static void
+packet_buffer_put(struct packet_buffer *buffer, void *data, size_t length)
+{
+        char *end;
+
+        buffer->total_packet_count++;
+
+        if (buffer->capacity <
+            atomic_read(&buffer->size) + sizeof(struct packet) + length) {
+                buffer->lost_packet_count++;
+                return;
+        }
+
+        end = buffer->data + buffer->capacity;
+        buffer->tail->length = length;
+
+        if (&buffer->tail->data[length] < end) {
+                memcpy(buffer->tail->data, data, length);
+                buffer->tail = (struct packet *) &buffer->tail->data[length];
+        } else {
+                size_t split = end - buffer->tail->data;
+
+                memcpy(buffer->tail->data, data, split);
+                memcpy(buffer->data, data + split, length - split);
+                buffer->tail = (struct packet *) &buffer->data[length - split];
+        }
+
+        /* Finally, adjust buffer size and wake up userspace reader. */
+
+        atomic_add(sizeof(struct packet) + length, &buffer->size);
+        wake_up_interruptible(&buffer->wait);
+}
+
+static inline void
+reg_write(struct pcilynx *lynx, int offset, u32 data)
+{
+        writel(data, lynx->registers + offset);
+}
+
+static inline u32
+reg_read(struct pcilynx *lynx, int offset)
+{
+        return readl(lynx->registers + offset);
+}
+
+static inline void
+reg_set_bits(struct pcilynx *lynx, int offset, u32 mask)
+{
+        reg_write(lynx, offset, (reg_read(lynx, offset) | mask));
+}
+
+/*
+ * Maybe the pcl programs could be set up to just append data instead
+ * of using a whole packet.
+ */
+static inline void
+run_pcl(struct pcilynx *lynx, dma_addr_t pcl_bus,
+                           int dmachan)
+{
+        reg_write(lynx, DMA0_CURRENT_PCL + dmachan * 0x20, pcl_bus);
+        reg_write(lynx, DMA0_CHAN_CTRL + dmachan * 0x20,
+                  DMA_CHAN_CTRL_ENABLE | DMA_CHAN_CTRL_LINK);
+}
+
+static int
+set_phy_reg(struct pcilynx *lynx, int addr, int val)
+{
+        if (addr > 15) {
+                dev_err(&lynx->pci_device->dev,
+                        "PHY register address %d out of range\n", addr);
+                return -1;
+        }
+        if (val > 0xff) {
+                dev_err(&lynx->pci_device->dev,
+                        "PHY register value %d out of range\n", val);
+                return -1;
+        }
+        reg_write(lynx, LINK_PHY, LINK_PHY_WRITE |
+                  LINK_PHY_ADDR(addr) | LINK_PHY_WDATA(val));
+
+        return 0;
+}
+
+static int
+nosy_open(struct inode *inode, struct file *file)
+{
+        int minor = iminor(inode);
+        struct client *client;
+        struct pcilynx *tmp, *lynx = NULL;
+
+        mutex_lock(&card_mutex);
+        list_for_each_entry(tmp, &card_list, link)
+                if (tmp->misc.minor == minor) {
+                        lynx = lynx_get(tmp);
+                        break;
+                }
+        mutex_unlock(&card_mutex);
+        if (lynx == NULL)
+                return -ENODEV;
+
+        client = kmalloc(sizeof *client, GFP_KERNEL);
+        if (client == NULL)
+                goto fail;
+
+        client->tcode_mask = ~0;
+        client->lynx = lynx;
+        INIT_LIST_HEAD(&client->link);
+
+        if (packet_buffer_init(&client->buffer, 128 * 1024) < 0)
+                goto fail;
+
+        file->private_data = client;
+
+        return 0;
+fail:
+        kfree(client);
+        lynx_put(lynx);
+
+        return -ENOMEM;
+}
+
+static int
+nosy_release(struct inode *inode, struct file *file)
+{
+        struct client *client = file->private_data;
+        struct pcilynx *lynx = client->lynx;
+
+        spin_lock_irq(&lynx->client_list_lock);
+        list_del_init(&client->link);
+        spin_unlock_irq(&lynx->client_list_lock);
+
+        packet_buffer_destroy(&client->buffer);
+        kfree(client);
+        lynx_put(lynx);
+
+        return 0;
+}
+
+static unsigned int
+nosy_poll(struct file *file, poll_table *pt)
+{
+        struct client *client = file->private_data;
+        unsigned int ret = 0;
+
+        poll_wait(file, &client->buffer.wait, pt);
+
+        if (atomic_read(&client->buffer.size) > 0)
+                ret = POLLIN | POLLRDNORM;
+
+        if (list_empty(&client->lynx->link))
+                ret |= POLLHUP;
+
+        return ret;
+}
+
+static ssize_t
+nosy_read(struct file *file, char __user *buffer, size_t count, loff_t *offset)
+{
+        struct client *client = file->private_data;
+
+        return packet_buffer_get(client, buffer, count);
+}
+
+static long
+nosy_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+        struct client *client = file->private_data;
+        spinlock_t *client_list_lock = &client->lynx->client_list_lock;
+        struct nosy_stats stats;
+
+        switch (cmd) {
+        case NOSY_IOC_GET_STATS:
+                spin_lock_irq(client_list_lock);
+                stats.total_packet_count = client->buffer.total_packet_count;
+                stats.lost_packet_count  = client->buffer.lost_packet_count;
+                spin_unlock_irq(client_list_lock);
+
+                if (copy_to_user((void __user *) arg, &stats, sizeof stats))
+                        return -EFAULT;
+                else
+                        return 0;
+
+        case NOSY_IOC_START:
+                spin_lock_irq(client_list_lock);
+                list_add_tail(&client->link, &client->lynx->client_list);
+                spin_unlock_irq(client_list_lock);
+
+                return 0;
+
+        case NOSY_IOC_STOP:
+                spin_lock_irq(client_list_lock);
+                list_del_init(&client->link);
+                spin_unlock_irq(client_list_lock);
+
+                return 0;
+
+        case NOSY_IOC_FILTER:
+                spin_lock_irq(client_list_lock);
+                client->tcode_mask = arg;
+                spin_unlock_irq(client_list_lock);
+
+                return 0;
+
+        default:
+                return -EINVAL;
+                /* Flush buffer, configure filter. */
+        }
+}
+
+static const struct file_operations nosy_ops = {
+        .owner =                THIS_MODULE,
+        .read =                 nosy_read,
+        .unlocked_ioctl =       nosy_ioctl,
+        .poll =                 nosy_poll,
+        .open =                 nosy_open,
+        .release =              nosy_release,
+};
+
+#define PHY_PACKET_SIZE 12 /* 1 payload, 1 inverse, 1 ack = 3 quadlets */
+
+static void
+packet_irq_handler(struct pcilynx *lynx)
+{
+        struct client *client;
+        u32 tcode_mask, tcode;
+        size_t length;
+        struct timeval tv;
+
+        /* FIXME: Also report rcv_speed. */
+
+        length = __le32_to_cpu(lynx->rcv_pcl->pcl_status) & 0x00001fff;
+        tcode  = __le32_to_cpu(lynx->rcv_buffer[1]) >> 4 & 0xf;
+
+        do_gettimeofday(&tv);
+        lynx->rcv_buffer[0] = (__force __le32)tv.tv_usec;
+
+        if (length == PHY_PACKET_SIZE)
+                tcode_mask = 1 << TCODE_PHY_PACKET;
+        else
+                tcode_mask = 1 << tcode;
+
+        spin_lock(&lynx->client_list_lock);
+
+        list_for_each_entry(client, &lynx->client_list, link)
+                if (client->tcode_mask & tcode_mask)
+                        packet_buffer_put(&client->buffer,
+                                          lynx->rcv_buffer, length + 4);
+
+        spin_unlock(&lynx->client_list_lock);
+}
+
+static void
+bus_reset_irq_handler(struct pcilynx *lynx)
+{
+        struct client *client;
+        struct timeval tv;
+
+        do_gettimeofday(&tv);
+
+        spin_lock(&lynx->client_list_lock);
+
+        list_for_each_entry(client, &lynx->client_list, link)
+                packet_buffer_put(&client->buffer, &tv.tv_usec, 4);
+
+        spin_unlock(&lynx->client_list_lock);
+}
+
+static irqreturn_t
+irq_handler(int irq, void *device)
+{
+        struct pcilynx *lynx = device;
+        u32 pci_int_status;
+
+        pci_int_status = reg_read(lynx, PCI_INT_STATUS);
+
+        if (pci_int_status == ~0)
+                /* Card was ejected. */
+                return IRQ_NONE;
+
+        if ((pci_int_status & PCI_INT_INT_PEND) == 0)
+                /* Not our interrupt, bail out quickly. */
+                return IRQ_NONE;
+
+        if ((pci_int_status & PCI_INT_P1394_INT) != 0) {
+                u32 link_int_status;
+
+                link_int_status = reg_read(lynx, LINK_INT_STATUS);
+                reg_write(lynx, LINK_INT_STATUS, link_int_status);
+
+                if ((link_int_status & LINK_INT_PHY_BUSRESET) > 0)
+                        bus_reset_irq_handler(lynx);
+        }
+
+        /* Clear the PCI_INT_STATUS register only after clearing the
+         * LINK_INT_STATUS register; otherwise the PCI_INT_P1394 will
+         * be set again immediately. */
+
+        reg_write(lynx, PCI_INT_STATUS, pci_int_status);
+
+        if ((pci_int_status & PCI_INT_DMA0_HLT) > 0) {
+                packet_irq_handler(lynx);
+                run_pcl(lynx, lynx->rcv_start_pcl_bus, 0);
+        }
+
+        return IRQ_HANDLED;
+}
+
+static void
+remove_card(struct pci_dev *dev)
+{
+        struct pcilynx *lynx = pci_get_drvdata(dev);
+        struct client *client;
+
+        mutex_lock(&card_mutex);
+        list_del_init(&lynx->link);
+        misc_deregister(&lynx->misc);
+        mutex_unlock(&card_mutex);
+
+        reg_write(lynx, PCI_INT_ENABLE, 0);
+        free_irq(lynx->pci_device->irq, lynx);
+
+        spin_lock_irq(&lynx->client_list_lock);
+        list_for_each_entry(client, &lynx->client_list, link)
+                wake_up_interruptible(&client->buffer.wait);
+        spin_unlock_irq(&lynx->client_list_lock);
+
+        pci_free_consistent(lynx->pci_device, sizeof(struct pcl),
+                            lynx->rcv_start_pcl, lynx->rcv_start_pcl_bus);
+        pci_free_consistent(lynx->pci_device, sizeof(struct pcl),
+                            lynx->rcv_pcl, lynx->rcv_pcl_bus);
+        pci_free_consistent(lynx->pci_device, PAGE_SIZE,
+                            lynx->rcv_buffer, lynx->rcv_buffer_bus);
+
+        iounmap(lynx->registers);
+        pci_disable_device(dev);
+        lynx_put(lynx);
+}
+
+#define RCV_BUFFER_SIZE (16 * 1024)
+
+static int __devinit
+add_card(struct pci_dev *dev, const struct pci_device_id *unused)
+{
+        struct pcilynx *lynx;
+        u32 p, end;
+        int ret, i;
+
+        if (pci_set_dma_mask(dev, 0xffffffff)) {
+                dev_err(&dev->dev,
+                    "DMA address limits not supported for PCILynx hardware\n");
+                return -ENXIO;
+        }
+        if (pci_enable_device(dev)) {
+                dev_err(&dev->dev, "Failed to enable PCILynx hardware\n");
+                return -ENXIO;
+        }
+        pci_set_master(dev);
+
+        lynx = kzalloc(sizeof *lynx, GFP_KERNEL);
+        if (lynx == NULL) {
+                dev_err(&dev->dev, "Failed to allocate control structure\n");
+                ret = -ENOMEM;
+                goto fail_disable;
+        }
+        lynx->pci_device = dev;
+        pci_set_drvdata(dev, lynx);
+
+        spin_lock_init(&lynx->client_list_lock);
+        INIT_LIST_HEAD(&lynx->client_list);
+        kref_init(&lynx->kref);
+
+        lynx->registers = ioremap_nocache(pci_resource_start(dev, 0),
+                                          PCILYNX_MAX_REGISTER);
+
+        lynx->rcv_start_pcl = pci_alloc_consistent(lynx->pci_device,
+                                sizeof(struct pcl), &lynx->rcv_start_pcl_bus);
+        lynx->rcv_pcl = pci_alloc_consistent(lynx->pci_device,
+                                sizeof(struct pcl), &lynx->rcv_pcl_bus);
+        lynx->rcv_buffer = pci_alloc_consistent(lynx->pci_device,
+                                RCV_BUFFER_SIZE, &lynx->rcv_buffer_bus);
+        if (lynx->rcv_start_pcl == NULL ||
+            lynx->rcv_pcl == NULL ||
+            lynx->rcv_buffer == NULL) {
+                dev_err(&dev->dev, "Failed to allocate receive buffer\n");
+                ret = -ENOMEM;
+                goto fail_deallocate;
+        }
+        lynx->rcv_start_pcl->next       = cpu_to_le32(lynx->rcv_pcl_bus);
+        lynx->rcv_pcl->next             = cpu_to_le32(PCL_NEXT_INVALID);
+        lynx->rcv_pcl->async_error_next = cpu_to_le32(PCL_NEXT_INVALID);
+
+        lynx->rcv_pcl->buffer[0].control =
+                        cpu_to_le32(PCL_CMD_RCV | PCL_BIGENDIAN | 2044);
+        lynx->rcv_pcl->buffer[0].pointer =
+                        cpu_to_le32(lynx->rcv_buffer_bus + 4);
+        p = lynx->rcv_buffer_bus + 2048;
+        end = lynx->rcv_buffer_bus + RCV_BUFFER_SIZE;
+        for (i = 1; p < end; i++, p += 2048) {
+                lynx->rcv_pcl->buffer[i].control =
+                        cpu_to_le32(PCL_CMD_RCV | PCL_BIGENDIAN | 2048);
+                lynx->rcv_pcl->buffer[i].pointer = cpu_to_le32(p);
+        }
+        lynx->rcv_pcl->buffer[i - 1].control |= cpu_to_le32(PCL_LAST_BUFF);
+
+        reg_set_bits(lynx, MISC_CONTROL, MISC_CONTROL_SWRESET);
+        /* Fix buggy cards with autoboot pin not tied low: */
+        reg_write(lynx, DMA0_CHAN_CTRL, 0);
+        reg_write(lynx, DMA_GLOBAL_REGISTER, 0x00 << 24);
+
+#if 0
+        /* now, looking for PHY register set */
+        if ((get_phy_reg(lynx, 2) & 0xe0) == 0xe0) {
+                lynx->phyic.reg_1394a = 1;
+                PRINT(KERN_INFO, lynx->id,
+                      "found 1394a conform PHY (using extended register set)");
+                lynx->phyic.vendor = get_phy_vendorid(lynx);
+                lynx->phyic.product = get_phy_productid(lynx);
+        } else {
+                lynx->phyic.reg_1394a = 0;
+                PRINT(KERN_INFO, lynx->id, "found old 1394 PHY");
+        }
+#endif
+
+        /* Setup the general receive FIFO max size. */
+        reg_write(lynx, FIFO_SIZES, 255);
+
+        reg_set_bits(lynx, PCI_INT_ENABLE, PCI_INT_DMA_ALL);
+
+        reg_write(lynx, LINK_INT_ENABLE,
+                  LINK_INT_PHY_TIME_OUT | LINK_INT_PHY_REG_RCVD |
+                  LINK_INT_PHY_BUSRESET | LINK_INT_IT_STUCK |
+                  LINK_INT_AT_STUCK | LINK_INT_SNTRJ |
+                  LINK_INT_TC_ERR | LINK_INT_GRF_OVER_FLOW |
+                  LINK_INT_ITF_UNDER_FLOW | LINK_INT_ATF_UNDER_FLOW);
+
+        /* Disable the L flag in self ID packets. */
+        set_phy_reg(lynx, 4, 0);
+
+        /* Put this baby into snoop mode */
+        reg_set_bits(lynx, LINK_CONTROL, LINK_CONTROL_SNOOP_ENABLE);
+
+        run_pcl(lynx, lynx->rcv_start_pcl_bus, 0);
+
+        if (request_irq(dev->irq, irq_handler, IRQF_SHARED,
+                        driver_name, lynx)) {
+                dev_err(&dev->dev,
+                        "Failed to allocate shared interrupt %d\n", dev->irq);
+                ret = -EIO;
+                goto fail_deallocate;
+        }
+
+        lynx->misc.parent = &dev->dev;
+        lynx->misc.minor = MISC_DYNAMIC_MINOR;
+        lynx->misc.name = "nosy";
+        lynx->misc.fops = &nosy_ops;
+
+        mutex_lock(&card_mutex);
+        ret = misc_register(&lynx->misc);
+        if (ret) {
+                dev_err(&dev->dev, "Failed to register misc char device\n");
+                mutex_unlock(&card_mutex);
+                goto fail_free_irq;
+        }
+        list_add_tail(&lynx->link, &card_list);
+        mutex_unlock(&card_mutex);
+
+        dev_info(&dev->dev,
+                 "Initialized PCILynx IEEE1394 card, irq=%d\n", dev->irq);
+
+        return 0;
+
+fail_free_irq:
+        reg_write(lynx, PCI_INT_ENABLE, 0);
+        free_irq(lynx->pci_device->irq, lynx);
+
+fail_deallocate:
+        if (lynx->rcv_start_pcl)
+                pci_free_consistent(lynx->pci_device, sizeof(struct pcl),
+                                lynx->rcv_start_pcl, lynx->rcv_start_pcl_bus);
+        if (lynx->rcv_pcl)
+                pci_free_consistent(lynx->pci_device, sizeof(struct pcl),
+                                lynx->rcv_pcl, lynx->rcv_pcl_bus);
+        if (lynx->rcv_buffer)
+                pci_free_consistent(lynx->pci_device, PAGE_SIZE,
+                                lynx->rcv_buffer, lynx->rcv_buffer_bus);
+        iounmap(lynx->registers);
+        kfree(lynx);
+
+fail_disable:
+        pci_disable_device(dev);
+
+        return ret;
+}
+
+static struct pci_device_id pci_table[] __devinitdata = {
+        {
+                .vendor =    PCI_VENDOR_ID_TI,
+                .device =    PCI_DEVICE_ID_TI_PCILYNX,
+                .subvendor = PCI_ANY_ID,
+                .subdevice = PCI_ANY_ID,
+        },
+        { }     /* Terminating entry */
+};
+
+static struct pci_driver lynx_pci_driver = {
+        .name =         driver_name,
+        .id_table =     pci_table,
+        .probe =        add_card,
+        .remove =       remove_card,
+};
+
+MODULE_AUTHOR("Kristian Hoegsberg");
+MODULE_DESCRIPTION("Snoop mode driver for TI pcilynx 1394 controllers");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, pci_table);
+
+static int __init nosy_init(void)
+{
+        return pci_register_driver(&lynx_pci_driver);
+}
+
+static void __exit nosy_cleanup(void)
+{
+        pci_unregister_driver(&lynx_pci_driver);
+
+        pr_info("Unloaded %s\n", driver_name);
+}
+
+module_init(nosy_init);
+module_exit(nosy_cleanup);