atm: Driver for Solos PCI ADSL2+ card.
David Woodhouse [Tue, 23 Dec 2008 04:09:02 +0000 (04:09 +0000)]
This adds basic support for the 'Solos' PCI ADSL2+ cards being developed
by Traverse Technologies and Xrio Ltd:
http://www.traverse.com.au/productview.php?product_id=116

Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/atm/Kconfig
drivers/atm/Makefile
drivers/atm/solos-pci.c [new file with mode: 0644]

index f197a19..191b85e 100644 (file)
@@ -391,4 +391,10 @@ config ATM_HE_USE_SUNI
          Support for the S/UNI-Ultra and S/UNI-622 found in the ForeRunner
          HE cards.  This driver provides carrier detection some statistics.
 
+config ATM_SOLOS
+       tristate "Solos ADSL2+ PCI Multiport card driver"
+       depends on PCI
+       help
+         Support for the Solos multiport ADSL2+ card.
+
 endif # ATM
index 0bfb317..62c3cc1 100644 (file)
@@ -12,6 +12,7 @@ obj-$(CONFIG_ATM_IA)          += iphase.o suni.o
 obj-$(CONFIG_ATM_FORE200E)     += fore_200e.o
 obj-$(CONFIG_ATM_ENI)          += eni.o suni.o
 obj-$(CONFIG_ATM_IDT77252)     += idt77252.o
+obj-$(CONFIG_ATM_SOLOS)                += solos-pci.o
 
 ifeq ($(CONFIG_ATM_NICSTAR_USE_SUNI),y)
   obj-$(CONFIG_ATM_NICSTAR)    += suni.o
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
new file mode 100644 (file)
index 0000000..72fc0f7
--- /dev/null
@@ -0,0 +1,790 @@
+/*
+ * Driver for the Solos PCI ADSL2+ card, designed to support Linux by
+ *  Traverse Technologies -- http://www.traverse.com.au/
+ *  Xrio Limited          -- http://www.xrio.com/
+ *
+ *
+ * Copyright © 2008 Traverse Technologies
+ * Copyright © 2008 Intel Corporation
+ *
+ * Authors: Nathan Williams <nathan@traverse.com.au>
+ *          David Woodhouse <dwmw2@infradead.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2, as published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+#define DEBUG
+#define VERBOSE_DEBUG
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/atm.h>
+#include <linux/atmdev.h>
+#include <linux/skbuff.h>
+#include <linux/sysfs.h>
+#include <linux/device.h>
+#include <linux/kobject.h>
+
+#define VERSION "0.04"
+#define PTAG "solos-pci"
+
+#define CONFIG_RAM_SIZE        128
+#define FLAGS_ADDR     0x7C
+#define IRQ_EN_ADDR    0x78
+#define FPGA_VER       0x74
+#define IRQ_CLEAR      0x70
+#define BUG_FLAG       0x6C
+
+#define DATA_RAM_SIZE  32768
+#define BUF_SIZE       4096
+
+#define RX_BUF(card, nr) ((card->buffers) + (nr)*BUF_SIZE*2)
+#define TX_BUF(card, nr) ((card->buffers) + (nr)*BUF_SIZE*2 + BUF_SIZE)
+
+static int debug = 0;
+static int atmdebug = 0;
+
+struct pkt_hdr {
+       __le16 size;
+       __le16 vpi;
+       __le16 vci;
+       __le16 type;
+};
+
+#define PKT_DATA       0
+#define PKT_COMMAND    1
+#define PKT_POPEN      3
+#define PKT_PCLOSE     4
+
+struct solos_card {
+       void __iomem *config_regs;
+       void __iomem *buffers;
+       int nr_ports;
+       struct pci_dev *dev;
+       struct atm_dev *atmdev[4];
+       struct tasklet_struct tlet;
+       spinlock_t tx_lock;
+       spinlock_t tx_queue_lock;
+       spinlock_t cli_queue_lock;
+       struct sk_buff_head tx_queue[4];
+       struct sk_buff_head cli_queue[4];
+};
+
+#define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data)
+
+MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>");
+MODULE_DESCRIPTION("Solos PCI driver");
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_PARM_DESC(debug, "Enable Loopback");
+MODULE_PARM_DESC(atmdebug, "Print ATM data");
+module_param(debug, int, 0444);
+module_param(atmdebug, int, 0444);
+
+static int opens;
+
+static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
+                      struct atm_vcc *vcc);
+static int fpga_tx(struct solos_card *);
+static irqreturn_t solos_irq(int irq, void *dev_id);
+static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci);
+static int list_vccs(int vci);
+static int atm_init(struct solos_card *);
+static void atm_remove(struct solos_card *);
+static int send_command(struct solos_card *card, int dev, const char *buf, size_t size);
+static void solos_bh(unsigned long);
+static int print_buffer(struct sk_buff *buf);
+
+static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb)
+{
+        if (vcc->pop)
+                vcc->pop(vcc, skb);
+        else
+                dev_kfree_skb_any(skb);
+}
+
+static ssize_t console_show(struct device *dev, struct device_attribute *attr,
+                           char *buf)
+{
+       struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
+       struct solos_card *card = atmdev->dev_data;
+       struct sk_buff *skb;
+
+       spin_lock(&card->cli_queue_lock);
+       skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]);
+       spin_unlock(&card->cli_queue_lock);
+       if(skb == NULL)
+               return sprintf(buf, "No data.\n");
+
+       memcpy(buf, skb->data, skb->len);
+       dev_dbg(&card->dev->dev, "len: %d\n", skb->len);
+
+       kfree_skb(skb);
+       return skb->len;
+}
+
+static int send_command(struct solos_card *card, int dev, const char *buf, size_t size)
+{
+       struct sk_buff *skb;
+       struct pkt_hdr *header;
+
+//     dev_dbg(&card->dev->dev, "size: %d\n", size);
+
+       if (size > (BUF_SIZE - sizeof(*header))) {
+               dev_dbg(&card->dev->dev, "Command is too big.  Dropping request\n");
+               return 0;
+       }
+       skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC);
+       if (!skb) {
+               dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n");
+               return 0;
+       }
+
+       header = (void *)skb_put(skb, sizeof(*header));
+
+       header->size = cpu_to_le16(size);
+       header->vpi = cpu_to_le16(0);
+       header->vci = cpu_to_le16(0);
+       header->type = cpu_to_le16(PKT_COMMAND);
+
+       memcpy(skb_put(skb, size), buf, size);
+
+       fpga_queue(card, dev, skb, NULL);
+
+       return 0;
+}
+
+static ssize_t console_store(struct device *dev, struct device_attribute *attr,
+                            const char *buf, size_t count)
+{
+       struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
+       struct solos_card *card = atmdev->dev_data;
+       int err;
+
+       err = send_command(card, SOLOS_CHAN(atmdev), buf, count);
+
+       return err?:count;
+}
+
+static DEVICE_ATTR(console, 0644, console_show, console_store);
+
+static irqreturn_t solos_irq(int irq, void *dev_id)
+{
+       struct solos_card *card = dev_id;
+       int handled = 1;
+
+       //ACK IRQ
+       iowrite32(0, card->config_regs + IRQ_CLEAR);
+       //Disable IRQs from FPGA
+       iowrite32(0, card->config_regs + IRQ_EN_ADDR);
+
+       /* If we only do it when the device is open, we lose console
+          messages */
+       if (1 || opens)
+               tasklet_schedule(&card->tlet);
+
+       //Enable IRQs from FPGA
+       iowrite32(1, card->config_regs + IRQ_EN_ADDR);
+       return IRQ_RETVAL(handled);
+}
+
+void solos_bh(unsigned long card_arg)
+{
+       struct solos_card *card = (void *)card_arg;
+       int port;
+       uint32_t card_flags;
+       uint32_t tx_mask;
+       uint32_t rx_done = 0;
+
+       card_flags = ioread32(card->config_regs + FLAGS_ADDR);
+
+       /* The TX bits are set if the channel is busy; clear if not. We want to
+          invoke fpga_tx() unless _all_ the bits for active channels are set */
+       tx_mask = (1 << card->nr_ports) - 1;
+       if ((card_flags & tx_mask) != tx_mask)
+               fpga_tx(card);
+
+       for (port = 0; port < card->nr_ports; port++) {
+               if (card_flags & (0x10 << port)) {
+                       struct pkt_hdr header;
+                       struct sk_buff *skb;
+                       struct atm_vcc *vcc;
+                       int size;
+
+                       rx_done |= 0x10 << port;
+
+                       memcpy_fromio(&header, RX_BUF(card, port), sizeof(header));
+
+                       size = le16_to_cpu(header.size);
+
+                       skb = alloc_skb(size, GFP_ATOMIC);
+                       if (!skb) {
+                               if (net_ratelimit())
+                                       dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n");
+                               continue;
+                       }
+
+                       memcpy_fromio(skb_put(skb, size),
+                                     RX_BUF(card, port) + sizeof(header),
+                                     size);
+
+                       if (atmdebug) {
+                               dev_info(&card->dev->dev, "Received: device %d\n", port);
+                               dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
+                                        size, le16_to_cpu(header.vpi),
+                                        le16_to_cpu(header.vci));
+                               print_buffer(skb);
+                       }
+
+                       switch (le16_to_cpu(header.type)) {
+                       case PKT_DATA:
+                               vcc = find_vcc(card->atmdev[port], le16_to_cpu(header.vpi),
+                                              le16_to_cpu(header.vci));
+                               if (!vcc) {
+                                       if (net_ratelimit())
+                                               dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n",
+                                                        le16_to_cpu(header.vci), le16_to_cpu(header.vpi),
+                                                        port);
+                                       continue;
+                               }
+                               atm_charge(vcc, skb->truesize);
+                               vcc->push(vcc, skb);
+                               atomic_inc(&vcc->stats->rx);
+                               break;
+
+                       case PKT_COMMAND:
+                       default: /* FIXME: Not really, surely? */
+                               spin_lock(&card->cli_queue_lock);
+                               if (skb_queue_len(&card->cli_queue[port]) > 10) {
+                                       if (net_ratelimit())
+                                               dev_warn(&card->dev->dev, "Dropping console response on port %d\n",
+                                                        port);
+                               } else
+                                       skb_queue_tail(&card->cli_queue[port], skb);
+                               spin_unlock(&card->cli_queue_lock);
+                               break;
+                       }
+               }
+       }
+       if (rx_done)
+               iowrite32(rx_done, card->config_regs + FLAGS_ADDR);
+
+       return;
+}
+
+static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
+{
+       struct hlist_head *head;
+       struct atm_vcc *vcc = NULL;
+       struct hlist_node *node;
+       struct sock *s;
+
+       read_lock(&vcc_sklist_lock);
+       head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
+       sk_for_each(s, node, head) {
+               vcc = atm_sk(s);
+               if (vcc->dev == dev && vcc->vci == vci &&
+                   vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE)
+                       goto out;
+       }
+       vcc = NULL;
+ out:
+       read_unlock(&vcc_sklist_lock);
+       return vcc;
+}
+
+static int list_vccs(int vci)
+{
+       struct hlist_head *head;
+       struct atm_vcc *vcc;
+       struct hlist_node *node;
+       struct sock *s;
+       int num_found = 0;
+       int i;
+
+       read_lock(&vcc_sklist_lock);
+       if (vci != 0){
+               head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
+               sk_for_each(s, node, head) {
+                       num_found ++;
+                       vcc = atm_sk(s);
+                       printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
+                              vcc->dev->number,
+                              vcc->vpi,
+                              vcc->vci);
+               }
+       } else {
+               for(i=0; i<32; i++){
+                       head = &vcc_hash[i];
+                       sk_for_each(s, node, head) {
+                               num_found ++;
+                               vcc = atm_sk(s);
+                               printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
+                                      vcc->dev->number,
+                                      vcc->vpi,
+                                      vcc->vci);
+                       }
+               }
+       }
+       read_unlock(&vcc_sklist_lock);
+       return num_found;
+}
+
+
+static int popen(struct atm_vcc *vcc)
+{
+       struct solos_card *card = vcc->dev->dev_data;
+       struct sk_buff *skb;
+       struct pkt_hdr *header;
+
+       skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
+       if (!skb && net_ratelimit()) {
+               dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
+               return -ENOMEM;
+       }
+       header = (void *)skb_put(skb, sizeof(*header));
+
+       header->size = cpu_to_le16(sizeof(*header));
+       header->vpi = cpu_to_le16(vcc->vpi);
+       header->vci = cpu_to_le16(vcc->vci);
+       header->type = cpu_to_le16(PKT_POPEN);
+
+       fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
+
+//     dev_dbg(&card->dev->dev, "Open for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
+       set_bit(ATM_VF_ADDR, &vcc->flags); // accept the vpi / vci
+       set_bit(ATM_VF_READY, &vcc->flags);
+       list_vccs(0);
+
+       if (!opens)
+               iowrite32(1, card->config_regs + IRQ_EN_ADDR);
+
+       opens++; //count open PVCs
+
+       return 0;
+}
+
+static void pclose(struct atm_vcc *vcc)
+{
+       struct solos_card *card = vcc->dev->dev_data;
+       struct sk_buff *skb;
+       struct pkt_hdr *header;
+
+       skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
+       if (!skb) {
+               dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
+               return;
+       }
+       header = (void *)skb_put(skb, sizeof(*header));
+
+       header->size = cpu_to_le16(sizeof(*header));
+       header->vpi = cpu_to_le16(vcc->vpi);
+       header->vci = cpu_to_le16(vcc->vci);
+       header->type = cpu_to_le16(PKT_PCLOSE);
+
+       fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
+
+//     dev_dbg(&card->dev->dev, "Close for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
+       if (!--opens)
+               iowrite32(0, card->config_regs + IRQ_EN_ADDR);
+
+       clear_bit(ATM_VF_ADDR, &vcc->flags);
+       clear_bit(ATM_VF_READY, &vcc->flags);
+
+       return;
+}
+
+static int print_buffer(struct sk_buff *buf)
+{
+       int len,i;
+       char msg[500];
+       char item[10];
+
+       len = buf->len;
+       for (i = 0; i < len; i++){
+               if(i % 8 == 0)
+                       sprintf(msg, "%02X: ", i);
+
+               sprintf(item,"%02X ",*(buf->data + i));
+               strcat(msg, item);
+               if(i % 8 == 7) {
+                       sprintf(item, "\n");
+                       strcat(msg, item);
+                       printk(KERN_DEBUG "%s", msg);
+               }
+       }
+       if (i % 8 != 0) {
+               sprintf(item, "\n");
+               strcat(msg, item);
+               printk(KERN_DEBUG "%s", msg);
+       }
+       printk(KERN_DEBUG "\n");
+
+       return 0;
+}
+
+static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
+                      struct atm_vcc *vcc)
+{
+       int old_len;
+
+       *(void **)skb->cb = vcc;
+
+       spin_lock(&card->tx_queue_lock);
+       old_len = skb_queue_len(&card->tx_queue[port]);
+       skb_queue_tail(&card->tx_queue[port], skb);
+       spin_unlock(&card->tx_queue_lock);
+
+       /* If TX might need to be started, do so */
+       if (!old_len)
+               fpga_tx(card);
+}
+
+static int fpga_tx(struct solos_card *card)
+{
+       uint32_t tx_pending;
+       uint32_t tx_started = 0;
+       struct sk_buff *skb;
+       struct atm_vcc *vcc;
+       unsigned char port;
+       unsigned long flags;
+
+       spin_lock_irqsave(&card->tx_lock, flags);
+
+       tx_pending = ioread32(card->config_regs + FLAGS_ADDR);
+
+       dev_vdbg(&card->dev->dev, "TX Flags are %X\n", tx_pending);
+
+       for (port = 0; port < card->nr_ports; port++) {
+               if (!(tx_pending & (1 << port))) {
+
+                       spin_lock(&card->tx_queue_lock);
+                       skb = skb_dequeue(&card->tx_queue[port]);
+                       spin_unlock(&card->tx_queue_lock);
+
+                       if (!skb)
+                               continue;
+
+                       if (atmdebug) {
+                               dev_info(&card->dev->dev, "Transmitted: port %d\n",
+                                        port);
+                               print_buffer(skb);
+                       }
+                       memcpy_toio(TX_BUF(card, port), skb->data, skb->len);
+
+                       vcc = *(void **)skb->cb;
+
+                       if (vcc) {
+                               atomic_inc(&vcc->stats->tx);
+                               solos_pop(vcc, skb);
+                       } else
+                               dev_kfree_skb_irq(skb);
+
+                       tx_started |= 1 << port; //Set TX full flag
+               }
+       }
+       if (tx_started)
+               iowrite32(tx_started, card->config_regs + FLAGS_ADDR);
+
+       spin_unlock_irqrestore(&card->tx_lock, flags);
+       return 0;
+}
+
+static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
+{
+       struct solos_card *card = vcc->dev->dev_data;
+       struct sk_buff *skb2 = NULL;
+       struct pkt_hdr *header;
+
+       //dev_dbg(&card->dev->dev, "psend called.\n");
+       //dev_dbg(&card->dev->dev, "dev,vpi,vci = %d,%d,%d\n",SOLOS_CHAN(vcc->dev),vcc->vpi,vcc->vci);
+
+       if (debug) {
+               skb2 = atm_alloc_charge(vcc, skb->len, GFP_ATOMIC);
+               if (skb2) {
+                       memcpy(skb2->data, skb->data, skb->len);
+                       skb_put(skb2, skb->len);
+                       vcc->push(vcc, skb2);
+                       atomic_inc(&vcc->stats->rx);
+               }
+               atomic_inc(&vcc->stats->tx);
+               solos_pop(vcc, skb);
+               return 0;
+       }
+
+       if (skb->len > (BUF_SIZE - sizeof(*header))) {
+               dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n");
+               solos_pop(vcc, skb);
+               return 0;
+       }
+
+       if (!skb_clone_writable(skb, sizeof(*header))) {
+               int expand_by = 0;
+               int ret;
+
+               if (skb_headroom(skb) < sizeof(*header))
+                       expand_by = sizeof(*header) - skb_headroom(skb);
+
+               ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC);
+               if (ret) {
+                       solos_pop(vcc, skb);
+                       return ret;
+               }
+       }
+
+       header = (void *)skb_push(skb, sizeof(*header));
+
+       header->size = cpu_to_le16(skb->len);
+       header->vpi = cpu_to_le16(vcc->vpi);
+       header->vci = cpu_to_le16(vcc->vci);
+       header->type = cpu_to_le16(PKT_DATA);
+
+       fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc);
+
+       return 0;
+}
+
+static struct atmdev_ops fpga_ops = {
+       .open =         popen,
+       .close =        pclose,
+       .ioctl =        NULL,
+       .getsockopt =   NULL,
+       .setsockopt =   NULL,
+       .send =         psend,
+       .send_oam =     NULL,
+       .phy_put =      NULL,
+       .phy_get =      NULL,
+       .change_qos =   NULL,
+       .proc_read =    NULL,
+       .owner =        THIS_MODULE
+};
+
+static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
+{
+       int err, i;
+       uint16_t fpga_ver;
+       uint8_t major_ver, minor_ver;
+       uint32_t data32;
+       struct solos_card *card;
+
+       if (debug)
+               return 0;
+
+       card = kzalloc(sizeof(*card), GFP_KERNEL);
+       if (!card)
+               return -ENOMEM;
+
+       card->dev = dev;
+
+       err = pci_enable_device(dev);
+       if (err) {
+               dev_warn(&dev->dev,  "Failed to enable PCI device\n");
+               goto out;
+       }
+
+       err = pci_request_regions(dev, "solos");
+       if (err) {
+               dev_warn(&dev->dev, "Failed to request regions\n");
+               goto out;
+       }
+
+       card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE);
+       if (!card->config_regs) {
+               dev_warn(&dev->dev, "Failed to ioremap config registers\n");
+               goto out_release_regions;
+       }
+       card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE);
+       if (!card->buffers) {
+               dev_warn(&dev->dev, "Failed to ioremap data buffers\n");
+               goto out_unmap_config;
+       }
+
+//     for(i=0;i<64 ;i+=4){
+//             data32=ioread32(card->buffers + i);
+//             dev_dbg(&card->dev->dev, "%08lX\n",(unsigned long)data32);
+//     }
+
+       //Fill Config Mem with zeros
+       for(i = 0; i < 128; i += 4)
+               iowrite32(0, card->config_regs + i);
+
+       //Set RX empty flags
+       iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
+
+       data32 = ioread32(card->config_regs + FPGA_VER);
+       fpga_ver = (data32 & 0x0000FFFF);
+       major_ver = ((data32 & 0xFF000000) >> 24);
+       minor_ver = ((data32 & 0x00FF0000) >> 16);
+       dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n",
+                major_ver, minor_ver, fpga_ver);
+
+       card->nr_ports = 2; /* FIXME: Detect daughterboard */
+
+       err = atm_init(card);
+       if (err)
+               goto out_unmap_both;
+
+       pci_set_drvdata(dev, card);
+       tasklet_init(&card->tlet, solos_bh, (unsigned long)card);
+       spin_lock_init(&card->tx_lock);
+       spin_lock_init(&card->tx_queue_lock);
+       spin_lock_init(&card->cli_queue_lock);
+/*
+       // Set Loopback mode
+       data32 = 0x00010000;
+       iowrite32(data32,card->config_regs + FLAGS_ADDR);
+*/
+/*
+       // Fill Buffers with zeros
+       for (i = 0; i < BUF_SIZE * 8; i += 4)
+               iowrite32(0, card->buffers + i);
+*/
+/*
+       for(i = 0; i < (BUF_SIZE * 1); i += 4)
+               iowrite32(0x12345678, card->buffers + i + (0*BUF_SIZE));
+       for(i = 0; i < (BUF_SIZE * 1); i += 4)
+               iowrite32(0xabcdef98, card->buffers + i + (1*BUF_SIZE));
+
+       // Read Config Memory
+       printk(KERN_DEBUG "Reading Config MEM\n");
+       i = 0;
+       for(i = 0; i < 16; i++) {
+               data32=ioread32(card->buffers + i*(BUF_SIZE/2));
+               printk(KERN_ALERT "Addr: %lX Data: %08lX\n",
+                      (unsigned long)(addr_start + i*(BUF_SIZE/2)),
+                      (unsigned long)data32);
+       }
+*/
+       //dev_dbg(&card->dev->dev, "Requesting IRQ: %d\n",dev->irq);
+       err = request_irq(dev->irq, solos_irq, IRQF_DISABLED|IRQF_SHARED,
+                         "solos-pci", card);
+       if (err)
+               dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq);
+
+       // Enable IRQs
+       iowrite32(1, card->config_regs + IRQ_EN_ADDR);
+
+       return 0;
+
+ out_unmap_both:
+       pci_iounmap(dev, card->config_regs);
+ out_unmap_config:
+       pci_iounmap(dev, card->buffers);
+ out_release_regions:
+       pci_release_regions(dev);
+ out:
+       return err;
+}
+
+static int atm_init(struct solos_card *card)
+{
+       int i;
+
+       opens = 0;
+
+       for (i = 0; i < card->nr_ports; i++) {
+               skb_queue_head_init(&card->tx_queue[i]);
+               skb_queue_head_init(&card->cli_queue[i]);
+
+               card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL);
+               if (!card->atmdev[i]) {
+                       dev_err(&card->dev->dev, "Could not register ATM device %d\n", i);
+                       atm_remove(card);
+                       return -ENODEV;
+               }
+               if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console))
+                       dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i);
+
+               dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number);
+
+               card->atmdev[i]->ci_range.vpi_bits = 8;
+               card->atmdev[i]->ci_range.vci_bits = 16;
+               card->atmdev[i]->dev_data = card;
+               card->atmdev[i]->phy_data = (void *)(unsigned long)i;
+       }
+       return 0;
+}
+
+static void atm_remove(struct solos_card *card)
+{
+       int i;
+
+       for (i = 0; i < card->nr_ports; i++) {
+               if (card->atmdev[i]) {
+                       dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number);
+                       atm_dev_deregister(card->atmdev[i]);
+               }
+       }
+}
+
+static void fpga_remove(struct pci_dev *dev)
+{
+       struct solos_card *card = pci_get_drvdata(dev);
+
+       if (debug)
+               return;
+
+       atm_remove(card);
+
+       dev_vdbg(&dev->dev, "Freeing IRQ\n");
+       // Disable IRQs from FPGA
+       iowrite32(0, card->config_regs + IRQ_EN_ADDR);
+       free_irq(dev->irq, card);
+       tasklet_kill(&card->tlet);
+
+       //      iowrite32(0x01,pciregs);
+       dev_vdbg(&dev->dev, "Unmapping PCI resource\n");
+       pci_iounmap(dev, card->buffers);
+       pci_iounmap(dev, card->config_regs);
+
+       dev_vdbg(&dev->dev, "Releasing PCI Region\n");
+       pci_release_regions(dev);
+       pci_disable_device(dev);
+
+       pci_set_drvdata(dev, NULL);
+       kfree(card);
+//     dev_dbg(&card->dev->dev, "fpga_remove\n");
+       return;
+}
+
+static struct pci_device_id fpga_pci_tbl[] __devinitdata = {
+       { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+       { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci,fpga_pci_tbl);
+
+static struct pci_driver fpga_driver = {
+       .name =         "solos",
+       .id_table =     fpga_pci_tbl,
+       .probe =        fpga_probe,
+       .remove =       fpga_remove,
+};
+
+
+static int __init solos_pci_init(void)
+{
+       printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION);
+       return pci_register_driver(&fpga_driver);
+}
+
+static void __exit solos_pci_exit(void)
+{
+       pci_unregister_driver(&fpga_driver);
+       printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION);
+}
+
+module_init(solos_pci_init);
+module_exit(solos_pci_exit);