diff options
| -rw-r--r-- | drivers/atm/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/atm/Makefile | 1 | ||||
| -rw-r--r-- | drivers/atm/solos-pci.c | 790 |
3 files changed, 797 insertions, 0 deletions
diff --git a/drivers/atm/Kconfig b/drivers/atm/Kconfig index f197a193633..191b85e857e 100644 --- a/drivers/atm/Kconfig +++ b/drivers/atm/Kconfig @@ -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 diff --git a/drivers/atm/Makefile b/drivers/atm/Makefile index 0bfb31748ec..62c3cc1075a 100644 --- a/drivers/atm/Makefile +++ b/drivers/atm/Makefile @@ -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 index 00000000000..72fc0f799a6 --- /dev/null +++ b/drivers/atm/solos-pci.c @@ -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); |