--- /dev/null
+/*
+ * 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);
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff