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atm: Driver for Solos PCI ADSL2+ card.
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>
This commit is contained in:
David Woodhouse
David S. Miller
parent
236b87c299
commit
9c54004ea7
@ -391,4 +391,10 @@ config ATM_HE_USE_SUNI
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Support for the S/UNI-Ultra and S/UNI-622 found in the ForeRunner
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HE cards. This driver provides carrier detection some statistics.
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config ATM_SOLOS
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tristate "Solos ADSL2+ PCI Multiport card driver"
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depends on PCI
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help
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Support for the Solos multiport ADSL2+ card.
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endif # ATM
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@ -12,6 +12,7 @@ obj-$(CONFIG_ATM_IA) += iphase.o suni.o
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obj-$(CONFIG_ATM_FORE200E) += fore_200e.o
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obj-$(CONFIG_ATM_ENI) += eni.o suni.o
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obj-$(CONFIG_ATM_IDT77252) += idt77252.o
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obj-$(CONFIG_ATM_SOLOS) += solos-pci.o
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ifeq ($(CONFIG_ATM_NICSTAR_USE_SUNI),y)
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obj-$(CONFIG_ATM_NICSTAR) += suni.o
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790
drivers/atm/solos-pci.c
Normal file
790
drivers/atm/solos-pci.c
Normal file
@ -0,0 +1,790 @@
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/*
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* Driver for the Solos PCI ADSL2+ card, designed to support Linux by
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* Traverse Technologies -- http://www.traverse.com.au/
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* Xrio Limited -- http://www.xrio.com/
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*
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*
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* Copyright © 2008 Traverse Technologies
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* Copyright © 2008 Intel Corporation
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*
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* Authors: Nathan Williams <nathan@traverse.com.au>
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* David Woodhouse <dwmw2@infradead.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#define DEBUG
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#define VERBOSE_DEBUG
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#include <linux/interrupt.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/ioport.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/atm.h>
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#include <linux/atmdev.h>
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#include <linux/skbuff.h>
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#include <linux/sysfs.h>
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#include <linux/device.h>
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#include <linux/kobject.h>
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#define VERSION "0.04"
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#define PTAG "solos-pci"
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#define CONFIG_RAM_SIZE 128
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#define FLAGS_ADDR 0x7C
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#define IRQ_EN_ADDR 0x78
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#define FPGA_VER 0x74
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#define IRQ_CLEAR 0x70
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#define BUG_FLAG 0x6C
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#define DATA_RAM_SIZE 32768
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#define BUF_SIZE 4096
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#define RX_BUF(card, nr) ((card->buffers) + (nr)*BUF_SIZE*2)
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#define TX_BUF(card, nr) ((card->buffers) + (nr)*BUF_SIZE*2 + BUF_SIZE)
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static int debug = 0;
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static int atmdebug = 0;
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struct pkt_hdr {
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__le16 size;
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__le16 vpi;
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__le16 vci;
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__le16 type;
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};
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#define PKT_DATA 0
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#define PKT_COMMAND 1
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#define PKT_POPEN 3
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#define PKT_PCLOSE 4
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struct solos_card {
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void __iomem *config_regs;
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void __iomem *buffers;
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int nr_ports;
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struct pci_dev *dev;
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struct atm_dev *atmdev[4];
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struct tasklet_struct tlet;
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spinlock_t tx_lock;
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spinlock_t tx_queue_lock;
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spinlock_t cli_queue_lock;
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struct sk_buff_head tx_queue[4];
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struct sk_buff_head cli_queue[4];
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};
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#define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data)
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MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>");
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MODULE_DESCRIPTION("Solos PCI driver");
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MODULE_VERSION(VERSION);
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MODULE_LICENSE("GPL");
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MODULE_PARM_DESC(debug, "Enable Loopback");
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MODULE_PARM_DESC(atmdebug, "Print ATM data");
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module_param(debug, int, 0444);
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module_param(atmdebug, int, 0444);
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static int opens;
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static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
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struct atm_vcc *vcc);
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static int fpga_tx(struct solos_card *);
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static irqreturn_t solos_irq(int irq, void *dev_id);
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static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci);
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static int list_vccs(int vci);
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static int atm_init(struct solos_card *);
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static void atm_remove(struct solos_card *);
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static int send_command(struct solos_card *card, int dev, const char *buf, size_t size);
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static void solos_bh(unsigned long);
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static int print_buffer(struct sk_buff *buf);
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static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb)
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{
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if (vcc->pop)
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vcc->pop(vcc, skb);
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else
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dev_kfree_skb_any(skb);
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}
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static ssize_t console_show(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
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struct solos_card *card = atmdev->dev_data;
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struct sk_buff *skb;
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spin_lock(&card->cli_queue_lock);
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skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]);
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spin_unlock(&card->cli_queue_lock);
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if(skb == NULL)
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return sprintf(buf, "No data.\n");
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memcpy(buf, skb->data, skb->len);
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dev_dbg(&card->dev->dev, "len: %d\n", skb->len);
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kfree_skb(skb);
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return skb->len;
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}
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static int send_command(struct solos_card *card, int dev, const char *buf, size_t size)
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{
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struct sk_buff *skb;
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struct pkt_hdr *header;
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// dev_dbg(&card->dev->dev, "size: %d\n", size);
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if (size > (BUF_SIZE - sizeof(*header))) {
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dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n");
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return 0;
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}
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skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC);
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if (!skb) {
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dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n");
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return 0;
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}
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header = (void *)skb_put(skb, sizeof(*header));
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header->size = cpu_to_le16(size);
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header->vpi = cpu_to_le16(0);
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header->vci = cpu_to_le16(0);
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header->type = cpu_to_le16(PKT_COMMAND);
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memcpy(skb_put(skb, size), buf, size);
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fpga_queue(card, dev, skb, NULL);
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return 0;
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}
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static ssize_t console_store(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
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struct solos_card *card = atmdev->dev_data;
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int err;
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err = send_command(card, SOLOS_CHAN(atmdev), buf, count);
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return err?:count;
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}
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static DEVICE_ATTR(console, 0644, console_show, console_store);
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static irqreturn_t solos_irq(int irq, void *dev_id)
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{
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struct solos_card *card = dev_id;
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int handled = 1;
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//ACK IRQ
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iowrite32(0, card->config_regs + IRQ_CLEAR);
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//Disable IRQs from FPGA
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iowrite32(0, card->config_regs + IRQ_EN_ADDR);
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/* If we only do it when the device is open, we lose console
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messages */
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if (1 || opens)
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tasklet_schedule(&card->tlet);
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//Enable IRQs from FPGA
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iowrite32(1, card->config_regs + IRQ_EN_ADDR);
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return IRQ_RETVAL(handled);
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}
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void solos_bh(unsigned long card_arg)
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{
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struct solos_card *card = (void *)card_arg;
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int port;
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uint32_t card_flags;
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uint32_t tx_mask;
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uint32_t rx_done = 0;
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card_flags = ioread32(card->config_regs + FLAGS_ADDR);
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/* The TX bits are set if the channel is busy; clear if not. We want to
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invoke fpga_tx() unless _all_ the bits for active channels are set */
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tx_mask = (1 << card->nr_ports) - 1;
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if ((card_flags & tx_mask) != tx_mask)
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fpga_tx(card);
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for (port = 0; port < card->nr_ports; port++) {
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if (card_flags & (0x10 << port)) {
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struct pkt_hdr header;
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struct sk_buff *skb;
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struct atm_vcc *vcc;
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int size;
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rx_done |= 0x10 << port;
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memcpy_fromio(&header, RX_BUF(card, port), sizeof(header));
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size = le16_to_cpu(header.size);
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skb = alloc_skb(size, GFP_ATOMIC);
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if (!skb) {
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if (net_ratelimit())
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dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n");
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continue;
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}
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memcpy_fromio(skb_put(skb, size),
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RX_BUF(card, port) + sizeof(header),
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size);
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if (atmdebug) {
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dev_info(&card->dev->dev, "Received: device %d\n", port);
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dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
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size, le16_to_cpu(header.vpi),
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le16_to_cpu(header.vci));
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print_buffer(skb);
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}
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switch (le16_to_cpu(header.type)) {
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case PKT_DATA:
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vcc = find_vcc(card->atmdev[port], le16_to_cpu(header.vpi),
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le16_to_cpu(header.vci));
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if (!vcc) {
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if (net_ratelimit())
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dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n",
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le16_to_cpu(header.vci), le16_to_cpu(header.vpi),
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port);
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continue;
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}
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atm_charge(vcc, skb->truesize);
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vcc->push(vcc, skb);
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atomic_inc(&vcc->stats->rx);
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break;
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case PKT_COMMAND:
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default: /* FIXME: Not really, surely? */
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spin_lock(&card->cli_queue_lock);
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if (skb_queue_len(&card->cli_queue[port]) > 10) {
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if (net_ratelimit())
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dev_warn(&card->dev->dev, "Dropping console response on port %d\n",
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port);
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} else
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skb_queue_tail(&card->cli_queue[port], skb);
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spin_unlock(&card->cli_queue_lock);
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break;
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}
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}
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}
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if (rx_done)
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iowrite32(rx_done, card->config_regs + FLAGS_ADDR);
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return;
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}
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static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
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{
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struct hlist_head *head;
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struct atm_vcc *vcc = NULL;
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struct hlist_node *node;
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struct sock *s;
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read_lock(&vcc_sklist_lock);
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head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
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sk_for_each(s, node, head) {
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vcc = atm_sk(s);
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if (vcc->dev == dev && vcc->vci == vci &&
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vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE)
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goto out;
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}
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vcc = NULL;
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out:
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read_unlock(&vcc_sklist_lock);
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return vcc;
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}
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static int list_vccs(int vci)
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{
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struct hlist_head *head;
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struct atm_vcc *vcc;
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struct hlist_node *node;
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struct sock *s;
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int num_found = 0;
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int i;
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read_lock(&vcc_sklist_lock);
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if (vci != 0){
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head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
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sk_for_each(s, node, head) {
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num_found ++;
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vcc = atm_sk(s);
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printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
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vcc->dev->number,
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vcc->vpi,
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vcc->vci);
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}
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} else {
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for(i=0; i<32; i++){
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head = &vcc_hash[i];
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sk_for_each(s, node, head) {
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num_found ++;
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vcc = atm_sk(s);
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printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
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vcc->dev->number,
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vcc->vpi,
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vcc->vci);
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}
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}
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}
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read_unlock(&vcc_sklist_lock);
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return num_found;
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}
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static int popen(struct atm_vcc *vcc)
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{
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struct solos_card *card = vcc->dev->dev_data;
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struct sk_buff *skb;
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struct pkt_hdr *header;
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skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
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if (!skb && net_ratelimit()) {
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dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
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return -ENOMEM;
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}
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header = (void *)skb_put(skb, sizeof(*header));
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header->size = cpu_to_le16(sizeof(*header));
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header->vpi = cpu_to_le16(vcc->vpi);
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header->vci = cpu_to_le16(vcc->vci);
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header->type = cpu_to_le16(PKT_POPEN);
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fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
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// dev_dbg(&card->dev->dev, "Open for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
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set_bit(ATM_VF_ADDR, &vcc->flags); // accept the vpi / vci
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set_bit(ATM_VF_READY, &vcc->flags);
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list_vccs(0);
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if (!opens)
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iowrite32(1, card->config_regs + IRQ_EN_ADDR);
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opens++; //count open PVCs
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return 0;
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}
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static void pclose(struct atm_vcc *vcc)
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{
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struct solos_card *card = vcc->dev->dev_data;
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struct sk_buff *skb;
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struct pkt_hdr *header;
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skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
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if (!skb) {
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dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
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return;
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}
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header = (void *)skb_put(skb, sizeof(*header));
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header->size = cpu_to_le16(sizeof(*header));
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header->vpi = cpu_to_le16(vcc->vpi);
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header->vci = cpu_to_le16(vcc->vci);
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header->type = cpu_to_le16(PKT_PCLOSE);
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fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
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// dev_dbg(&card->dev->dev, "Close for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
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if (!--opens)
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iowrite32(0, card->config_regs + IRQ_EN_ADDR);
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clear_bit(ATM_VF_ADDR, &vcc->flags);
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clear_bit(ATM_VF_READY, &vcc->flags);
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return;
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}
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static int print_buffer(struct sk_buff *buf)
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{
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int len,i;
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char msg[500];
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char item[10];
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len = buf->len;
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for (i = 0; i < len; i++){
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if(i % 8 == 0)
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sprintf(msg, "%02X: ", i);
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sprintf(item,"%02X ",*(buf->data + i));
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strcat(msg, item);
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if(i % 8 == 7) {
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sprintf(item, "\n");
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strcat(msg, item);
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printk(KERN_DEBUG "%s", msg);
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}
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}
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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);
|
||||
Loading…
Reference in New Issue
Block a user