• 设为首页
  • 点击收藏
  • 手机版
    手机扫一扫访问
    迪恩网络手机版
  • 关注官方公众号
    微信扫一扫关注
    公众号
登陆 注册

C++ dev_to_port函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中dev_to_port函数的典型用法代码示例。如果您正苦于以下问题：C++ dev_to_port函数的具体用法？C++ dev_to_port怎么用？C++ dev_to_port使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了dev_to_port函数的18个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: pci200_close

static int pci200_close(struct net_device *dev)
{
	sca_close(dev);
	sca_flush(dev_to_port(dev)->card);
	hdlc_close(dev);
	return 0;
}
开发者ID:laudarch，项目名称:simcom-linux-kernel，代码行数:7，代码来源:pci200syn.c


示例2: c101_open

static int c101_open(struct net_device *dev)
{
	port_t *port = dev_to_port(dev);
	int result;

	result = hdlc_open(dev);
	if (result)
		return result;

	writeb(1, port->win0base + C101_DTR);
	sca_out(0, MSCI1_OFFSET + CTL, port); /* RTS uses ch#2 output */
	sca_open(dev);
	/* DCD is connected to port 2 [email protected]#$%^& - disable MSCI0 CDCD interrupt */
	sca_out(IE1_UDRN, MSCI0_OFFSET + IE1, port);
	sca_out(IE0_TXINT, MSCI0_OFFSET + IE0, port);

	set_carrier(port);

	/* enable MSCI1 CDCD interrupt */
	sca_out(IE1_CDCD, MSCI1_OFFSET + IE1, port);
	sca_out(IE0_RXINTA, MSCI1_OFFSET + IE0, port);
	sca_out(0x48, IER0, port); /* TXINT #0 and RXINT #1 */
	c101_set_iface(port);
	return 0;
}
开发者ID:E-LLP，项目名称:n900，代码行数:25，代码来源:c101.c


示例3: c101_ioctl

static int c101_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
	const size_t size = sizeof(sync_serial_settings);
	sync_serial_settings new_line;
	sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
	port_t *port = dev_to_port(dev);

#ifdef DEBUG_RINGS
	if (cmd == SIOCDEVPRIVATE) {
		sca_dump_rings(dev);
		printk(KERN_DEBUG "MSCI1: ST: %02x %02x %02x %02x\n",
		       sca_in(MSCI1_OFFSET + ST0, port),
		       sca_in(MSCI1_OFFSET + ST1, port),
		       sca_in(MSCI1_OFFSET + ST2, port),
		       sca_in(MSCI1_OFFSET + ST3, port));
		return 0;
	}
#endif
	if (cmd != SIOCWANDEV)
		return hdlc_ioctl(dev, ifr, cmd);

	switch(ifr->ifr_settings.type) {
	case IF_GET_IFACE:
		ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
		if (ifr->ifr_settings.size < size) {
			ifr->ifr_settings.size = size; /* data size wanted */
			return -ENOBUFS;
		}
		if (copy_to_user(line, &port->settings, size))
			return -EFAULT;
		return 0;

	case IF_IFACE_SYNC_SERIAL:
		if(!capable(CAP_NET_ADMIN))
			return -EPERM;

		if (copy_from_user(&new_line, line, size))
			return -EFAULT;

		if (new_line.clock_type != CLOCK_EXT &&
		    new_line.clock_type != CLOCK_TXFROMRX &&
		    new_line.clock_type != CLOCK_INT &&
		    new_line.clock_type != CLOCK_TXINT)
		return -EINVAL;	/* No such clock setting */

		if (new_line.loopback != 0 && new_line.loopback != 1)
			return -EINVAL;

		memcpy(&port->settings, &new_line, size); /* Update settings */
		c101_set_iface(port);
		return 0;

	default:
		return hdlc_ioctl(dev, ifr, cmd);
	}
}
开发者ID:E-LLP，项目名称:n900，代码行数:56，代码来源:c101.c


示例4: c101_close

static int c101_close(struct net_device *dev)
{
	port_t *port = dev_to_port(dev);

	sca_close(dev);
	writeb(0, port->win0base + C101_DTR);
	sca_out(CTL_NORTS, MSCI1_OFFSET + CTL, port);
	hdlc_close(dev);
	return 0;
}
开发者ID:E-LLP，项目名称:n900，代码行数:10，代码来源:c101.c


示例5: hss_hdlc_rx_irq

static void hss_hdlc_rx_irq(void *pdev)
{
	struct net_device *dev = pdev;
	struct port *port = dev_to_port(dev);

#if DEBUG_RX
	printk(KERN_DEBUG "%s: hss_hdlc_rx_irq\n", dev->name);
#endif
	qmgr_disable_irq(queue_ids[port->id].rx);
	napi_schedule(&port->napi);
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:11，代码来源:ixp4xx_hss.c


示例6: pc300_open

static int pc300_open(struct net_device *dev)
{
	port_t *port = dev_to_port(dev);

	int result = hdlc_open(dev);
	if (result)
		return result;

	sca_open(dev);
	pc300_set_iface(port);
	return 0;
}
开发者ID:andi34，项目名称:Dhollmen_Kernel，代码行数:12，代码来源:pc300too.c


示例7: pci200_ioctl

static int pci200_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
	const size_t size = sizeof(sync_serial_settings);
	sync_serial_settings new_line;
	sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
	port_t *port = dev_to_port(dev);

#ifdef DEBUG_RINGS
	if (cmd == SIOCDEVPRIVATE) {
		sca_dump_rings(dev);
		return 0;
	}
#endif
	if (cmd != SIOCWANDEV)
		return hdlc_ioctl(dev, ifr, cmd);

	switch(ifr->ifr_settings.type) {
	case IF_GET_IFACE:
		ifr->ifr_settings.type = IF_IFACE_V35;
		if (ifr->ifr_settings.size < size) {
			ifr->ifr_settings.size = size; 
			return -ENOBUFS;
		}
		if (copy_to_user(line, &port->settings, size))
			return -EFAULT;
		return 0;

	case IF_IFACE_V35:
	case IF_IFACE_SYNC_SERIAL:
		if (!capable(CAP_NET_ADMIN))
			return -EPERM;

		if (copy_from_user(&new_line, line, size))
			return -EFAULT;

		if (new_line.clock_type != CLOCK_EXT &&
		    new_line.clock_type != CLOCK_TXFROMRX &&
		    new_line.clock_type != CLOCK_INT &&
		    new_line.clock_type != CLOCK_TXINT)
			return -EINVAL;	

		if (new_line.loopback != 0 && new_line.loopback != 1)
			return -EINVAL;

		memcpy(&port->settings, &new_line, size); 
		pci200_set_iface(port);
		sca_flush(port->card);
		return 0;

	default:
		return hdlc_ioctl(dev, ifr, cmd);
	}
}
开发者ID:DirtyDroidX，项目名称:android_kernel_htc_m8ul，代码行数:53，代码来源:pci200syn.c


示例8: n2_close

static int n2_close(struct net_device *dev)
{
    port_t *port = dev_to_port(dev);
    int io = port->card->io;
    u8 mcr = inb(io+N2_MCR) | (port->phy_node ? TX422_PORT1 : TX422_PORT0);

    sca_close(dev);
    mcr |= port->phy_node ? DTR_PORT1 : DTR_PORT0; /* set DTR OFF */
    outb(mcr, io + N2_MCR);
    hdlc_close(dev);
    return 0;
}
开发者ID:mrtos，项目名称:Logitech-Revue，代码行数:12，代码来源:n2.c


示例9: hss_hdlc_close

static int hss_hdlc_close(struct net_device *dev)
{
	struct port *port = dev_to_port(dev);
	unsigned long flags;
	int i, buffs = RX_DESCS; 

	spin_lock_irqsave(&npe_lock, flags);
	ports_open--;
	qmgr_disable_irq(queue_ids[port->id].rx);
	netif_stop_queue(dev);
	napi_disable(&port->napi);

	hss_stop_hdlc(port);

	while (queue_get_desc(queue_ids[port->id].rxfree, port, 0) >= 0)
		buffs--;
	while (queue_get_desc(queue_ids[port->id].rx, port, 0) >= 0)
		buffs--;

	if (buffs)
		netdev_crit(dev, "unable to drain RX queue, %i buffer(s) left in NPE\n",
			    buffs);

	buffs = TX_DESCS;
	while (queue_get_desc(queue_ids[port->id].tx, port, 1) >= 0)
		buffs--; 

	i = 0;
	do {
		while (queue_get_desc(port->plat->txreadyq, port, 1) >= 0)
			buffs--;
		if (!buffs)
			break;
	} while (++i < MAX_CLOSE_WAIT);

	if (buffs)
		netdev_crit(dev, "unable to drain TX queue, %i buffer(s) left in NPE\n",
			    buffs);
#if DEBUG_CLOSE
	if (!buffs)
		printk(KERN_DEBUG "Draining TX queues took %i cycles\n", i);
#endif
	qmgr_disable_irq(queue_ids[port->id].txdone);

	if (port->plat->close)
		port->plat->close(port->id, dev);
	spin_unlock_irqrestore(&npe_lock, flags);

	destroy_hdlc_queues(port);
	release_hdlc_queues(port);
	hdlc_close(dev);
	return 0;
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:53，代码来源:ixp4xx_hss.c


示例10: hss_hdlc_set_carrier

static void hss_hdlc_set_carrier(void *pdev, int carrier)
{
	struct net_device *netdev = pdev;
	struct port *port = dev_to_port(netdev);
	unsigned long flags;

	spin_lock_irqsave(&npe_lock, flags);
	port->carrier = carrier;
	if (!port->loopback) {
		if (carrier)
			netif_carrier_on(netdev);
		else
			netif_carrier_off(netdev);
	}
	spin_unlock_irqrestore(&npe_lock, flags);
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:16，代码来源:ixp4xx_hss.c


示例11: n2_open

static int n2_open(struct net_device *dev)
{
    port_t *port = dev_to_port(dev);
    int io = port->card->io;
    u8 mcr = inb(io + N2_MCR) | (port->phy_node ? TX422_PORT1:TX422_PORT0);
    int result;

    result = hdlc_open(dev);
    if (result)
        return result;

    mcr &= port->phy_node ? ~DTR_PORT1 : ~DTR_PORT0; /* set DTR ON */
    outb(mcr, io + N2_MCR);

    outb(inb(io + N2_PCR) | PCR_ENWIN, io + N2_PCR); /* open window */
    outb(inb(io + N2_PSR) | PSR_DMAEN, io + N2_PSR); /* enable dma */
    sca_open(dev);
    n2_set_iface(port);
    return 0;
}
开发者ID:mrtos，项目名称:Logitech-Revue，代码行数:20，代码来源:n2.c


示例12: hss_hdlc_attach

static int hss_hdlc_attach(struct net_device *dev, unsigned short encoding,
			   unsigned short parity)
{
	struct port *port = dev_to_port(dev);

	if (encoding != ENCODING_NRZ)
		return -EINVAL;

	switch(parity) {
	case PARITY_CRC16_PR1_CCITT:
		port->hdlc_cfg = 0;
		return 0;

	case PARITY_CRC32_PR1_CCITT:
		port->hdlc_cfg = PKT_HDLC_CRC_32;
		return 0;

	default:
		return -EINVAL;
	}
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:21，代码来源:ixp4xx_hss.c


示例13: hss_hdlc_txdone_irq

static void hss_hdlc_txdone_irq(void *pdev)
{
	struct net_device *dev = pdev;
	struct port *port = dev_to_port(dev);
	int n_desc;

#if DEBUG_TX
	printk(KERN_DEBUG DRV_NAME ": hss_hdlc_txdone_irq\n");
#endif
	while ((n_desc = queue_get_desc(queue_ids[port->id].txdone,
					port, 1)) >= 0) {
		struct desc *desc;
		int start;

		desc = tx_desc_ptr(port, n_desc);

		dev->stats.tx_packets++;
		dev->stats.tx_bytes += desc->pkt_len;

		dma_unmap_tx(port, desc);
#if DEBUG_TX
		printk(KERN_DEBUG "%s: hss_hdlc_txdone_irq free %p\n",
		       dev->name, port->tx_buff_tab[n_desc]);
#endif
		free_buffer_irq(port->tx_buff_tab[n_desc]);
		port->tx_buff_tab[n_desc] = NULL;

		start = qmgr_stat_below_low_watermark(port->plat->txreadyq);
		queue_put_desc(port->plat->txreadyq,
			       tx_desc_phys(port, n_desc), desc);
		if (start) { 
#if DEBUG_TX
			printk(KERN_DEBUG "%s: hss_hdlc_txdone_irq xmit"
			       " ready\n", dev->name);
#endif
			netif_wake_queue(dev);
		}
	}
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:39，代码来源:ixp4xx_hss.c


示例14: device_open

static io_return_t
device_open (ipc_port_t reply_port, mach_msg_type_name_t reply_port_type,
	     dev_mode_t mode, char *name, device_t *devp)
{
  io_return_t err = D_SUCCESS;
  ipc_port_t notify;
  struct ifnet *ifp;
  struct linux_device *dev;
  struct net_data *nd;

  /* Search for the device.  */
  for (dev = dev_base; dev; dev = dev->next)
    if (dev->base_addr
	&& dev->base_addr != 0xffe0
	&& !strcmp (name, dev->name))
      break;
  if (!dev)
    return D_NO_SUCH_DEVICE;

  /* Allocate and initialize device data if this is the first open.  */
  nd = dev->net_data;
  if (!nd)
    {
      dev->net_data = nd = ((struct net_data *)
			    kalloc (sizeof (struct net_data)));
      if (!nd)
	{
	  err = D_NO_MEMORY;
	  goto out;
	}
      nd->dev = dev;
      nd->device.emul_data = nd;
      nd->device.emul_ops = &linux_net_emulation_ops;
      nd->port = ipc_port_alloc_kernel ();
      if (nd->port == IP_NULL)
	{
	  err = KERN_RESOURCE_SHORTAGE;
	  goto out;
	}
      ipc_kobject_set (nd->port, (ipc_kobject_t) & nd->device, IKOT_DEVICE);
      notify = ipc_port_make_sonce (nd->port);
      ip_lock (nd->port);
      ipc_port_nsrequest (nd->port, 1, notify, &notify);
      assert (notify == IP_NULL);

      ifp = &nd->ifnet;
      ifp->if_unit = dev->name[strlen (dev->name) - 1] - '0';
      ifp->if_flags = IFF_UP | IFF_RUNNING;
      ifp->if_mtu = dev->mtu;
      ifp->if_header_size = dev->hard_header_len;
      ifp->if_header_format = dev->type;
      ifp->if_address_size = dev->addr_len;
      ifp->if_address = dev->dev_addr;
      if_init_queues (ifp);

      if (dev->open)
	{
	  linux_intr_pri = SPL6;
	  if ((*dev->open) (dev))
	    err = D_NO_SUCH_DEVICE;
	}

    out:
      if (err)
	{
	  if (nd)
	    {
	      if (nd->port != IP_NULL)
		{
		  ipc_kobject_set (nd->port, IKO_NULL, IKOT_NONE);
		  ipc_port_dealloc_kernel (nd->port);
		}
	      kfree ((vm_offset_t) nd, sizeof (struct net_data));
	      nd = NULL;
	      dev->net_data = NULL;
	    }
	}
      else
	{
	  /* IPv6 heavily relies on multicasting (especially router and
	     neighbor solicits and advertisements), so enable reception of
	     those multicast packets by setting `LINUX_IFF_ALLMULTI'.  */
	  dev->flags |= LINUX_IFF_UP | LINUX_IFF_RUNNING | LINUX_IFF_ALLMULTI;
	  skb_queue_head_init (&dev->buffs[0]);

	  if (dev->set_multicast_list)
	    dev->set_multicast_list (dev);
	}
      if (IP_VALID (reply_port))
	ds_device_open_reply (reply_port, reply_port_type,
			      err, dev_to_port (nd));
      return MIG_NO_REPLY;
    }

  *devp = &nd->device;
  return D_SUCCESS;
}
开发者ID:ctos，项目名称:bpi，代码行数:97，代码来源:net.c


示例15: hss_hdlc_open

static int hss_hdlc_open(struct net_device *dev)
{
	struct port *port = dev_to_port(dev);
	unsigned long flags;
	int i, err = 0;

	if ((err = hdlc_open(dev)))
		return err;

	if ((err = hss_load_firmware(port)))
		goto err_hdlc_close;

	if ((err = request_hdlc_queues(port)))
		goto err_hdlc_close;

	if ((err = init_hdlc_queues(port)))
		goto err_destroy_queues;

	spin_lock_irqsave(&npe_lock, flags);
	if (port->plat->open)
		if ((err = port->plat->open(port->id, dev,
					    hss_hdlc_set_carrier)))
			goto err_unlock;
	spin_unlock_irqrestore(&npe_lock, flags);

	
	for (i = 0; i < TX_DESCS; i++)
		queue_put_desc(port->plat->txreadyq,
			       tx_desc_phys(port, i), tx_desc_ptr(port, i));

	for (i = 0; i < RX_DESCS; i++)
		queue_put_desc(queue_ids[port->id].rxfree,
			       rx_desc_phys(port, i), rx_desc_ptr(port, i));

	napi_enable(&port->napi);
	netif_start_queue(dev);

	qmgr_set_irq(queue_ids[port->id].rx, QUEUE_IRQ_SRC_NOT_EMPTY,
		     hss_hdlc_rx_irq, dev);

	qmgr_set_irq(queue_ids[port->id].txdone, QUEUE_IRQ_SRC_NOT_EMPTY,
		     hss_hdlc_txdone_irq, dev);
	qmgr_enable_irq(queue_ids[port->id].txdone);

	ports_open++;

	hss_set_hdlc_cfg(port);
	hss_config(port);

	hss_start_hdlc(port);

	
	napi_schedule(&port->napi);
	return 0;

err_unlock:
	spin_unlock_irqrestore(&npe_lock, flags);
err_destroy_queues:
	destroy_hdlc_queues(port);
	release_hdlc_queues(port);
err_hdlc_close:
	hdlc_close(dev);
	return err;
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:64，代码来源:ixp4xx_hss.c


示例16: hss_hdlc_xmit

static int hss_hdlc_xmit(struct sk_buff *skb, struct net_device *dev)
{
	struct port *port = dev_to_port(dev);
	unsigned int txreadyq = port->plat->txreadyq;
	int len, offset, bytes, n;
	void *mem;
	u32 phys;
	struct desc *desc;

#if DEBUG_TX
	printk(KERN_DEBUG "%s: hss_hdlc_xmit\n", dev->name);
#endif

	if (unlikely(skb->len > HDLC_MAX_MRU)) {
		dev_kfree_skb(skb);
		dev->stats.tx_errors++;
		return NETDEV_TX_OK;
	}

	debug_pkt(dev, "hss_hdlc_xmit", skb->data, skb->len);

	len = skb->len;
#ifdef __ARMEB__
	offset = 0; 
	bytes = len;
	mem = skb->data;
#else
	offset = (int)skb->data & 3; 
	bytes = ALIGN(offset + len, 4);
	if (!(mem = kmalloc(bytes, GFP_ATOMIC))) {
		dev_kfree_skb(skb);
		dev->stats.tx_dropped++;
		return NETDEV_TX_OK;
	}
	memcpy_swab32(mem, (u32 *)((int)skb->data & ~3), bytes / 4);
	dev_kfree_skb(skb);
#endif

	phys = dma_map_single(&dev->dev, mem, bytes, DMA_TO_DEVICE);
	if (dma_mapping_error(&dev->dev, phys)) {
#ifdef __ARMEB__
		dev_kfree_skb(skb);
#else
		kfree(mem);
#endif
		dev->stats.tx_dropped++;
		return NETDEV_TX_OK;
	}

	n = queue_get_desc(txreadyq, port, 1);
	BUG_ON(n < 0);
	desc = tx_desc_ptr(port, n);

#ifdef __ARMEB__
	port->tx_buff_tab[n] = skb;
#else
	port->tx_buff_tab[n] = mem;
#endif
	desc->data = phys + offset;
	desc->buf_len = desc->pkt_len = len;

	wmb();
	queue_put_desc(queue_ids[port->id].tx, tx_desc_phys(port, n), desc);

	if (qmgr_stat_below_low_watermark(txreadyq)) { 
#if DEBUG_TX
		printk(KERN_DEBUG "%s: hss_hdlc_xmit queue full\n", dev->name);
#endif
		netif_stop_queue(dev);
		
		if (!qmgr_stat_below_low_watermark(txreadyq)) {
#if DEBUG_TX
			printk(KERN_DEBUG "%s: hss_hdlc_xmit ready again\n",
			       dev->name);
#endif
			netif_wake_queue(dev);
		}
	}

#if DEBUG_TX
	printk(KERN_DEBUG "%s: hss_hdlc_xmit end\n", dev->name);
#endif
	return NETDEV_TX_OK;
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:84，代码来源:ixp4xx_hss.c


示例17: pc300_ioctl

static int pc300_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
	const size_t size = sizeof(sync_serial_settings);
	sync_serial_settings new_line;
	sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
	int new_type;
	port_t *port = dev_to_port(dev);

#ifdef DEBUG_RINGS
	if (cmd == SIOCDEVPRIVATE) {
		sca_dump_rings(dev);
		return 0;
	}
#endif
	if (cmd != SIOCWANDEV)
		return hdlc_ioctl(dev, ifr, cmd);

	if (ifr->ifr_settings.type == IF_GET_IFACE) {
		ifr->ifr_settings.type = port->iface;
		if (ifr->ifr_settings.size < size) {
			ifr->ifr_settings.size = size; /* data size wanted */
			return -ENOBUFS;
		}
		if (copy_to_user(line, &port->settings, size))
			return -EFAULT;
		return 0;

	}

	if (port->card->type == PC300_X21 &&
	    (ifr->ifr_settings.type == IF_IFACE_SYNC_SERIAL ||
	     ifr->ifr_settings.type == IF_IFACE_X21))
		new_type = IF_IFACE_X21;

	else if (port->card->type == PC300_RSV &&
		 (ifr->ifr_settings.type == IF_IFACE_SYNC_SERIAL ||
		  ifr->ifr_settings.type == IF_IFACE_V35))
		new_type = IF_IFACE_V35;

	else if (port->card->type == PC300_RSV &&
		 ifr->ifr_settings.type == IF_IFACE_V24)
		new_type = IF_IFACE_V24;

	else
		return hdlc_ioctl(dev, ifr, cmd);

	if (!capable(CAP_NET_ADMIN))
		return -EPERM;

	if (copy_from_user(&new_line, line, size))
		return -EFAULT;

	if (new_line.clock_type != CLOCK_EXT &&
	    new_line.clock_type != CLOCK_TXFROMRX &&
	    new_line.clock_type != CLOCK_INT &&
	    new_line.clock_type != CLOCK_TXINT)
		return -EINVAL;	/* No such clock setting */

	if (new_line.loopback != 0 && new_line.loopback != 1)
		return -EINVAL;

	memcpy(&port->settings, &new_line, size); /* Update settings */
	port->iface = new_type;
	pc300_set_iface(port);
	return 0;
}
开发者ID:andi34，项目名称:Dhollmen_Kernel，代码行数:66，代码来源:pc300too.c


示例18: hss_hdlc_ioctl

static int hss_hdlc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
	const size_t size = sizeof(sync_serial_settings);
	sync_serial_settings new_line;
	sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
	struct port *port = dev_to_port(dev);
	unsigned long flags;
	int clk;

	if (cmd != SIOCWANDEV)
		return hdlc_ioctl(dev, ifr, cmd);

	switch(ifr->ifr_settings.type) {
	case IF_GET_IFACE:
		ifr->ifr_settings.type = IF_IFACE_V35;
		if (ifr->ifr_settings.size < size) {
			ifr->ifr_settings.size = size; 
			return -ENOBUFS;
		}
		memset(&new_line, 0, sizeof(new_line));
		new_line.clock_type = port->clock_type;
		new_line.clock_rate = port->clock_rate;
		new_line.loopback = port->loopback;
		if (copy_to_user(line, &new_line, size))
			return -EFAULT;
		return 0;

	case IF_IFACE_SYNC_SERIAL:
	case IF_IFACE_V35:
		if(!capable(CAP_NET_ADMIN))
			return -EPERM;
		if (copy_from_user(&new_line, line, size))
			return -EFAULT;

		clk = new_line.clock_type;
		if (port->plat->set_clock)
			clk = port->plat->set_clock(port->id, clk);

		if (clk != CLOCK_EXT && clk != CLOCK_INT)
			return -EINVAL;	

		if (new_line.loopback != 0 && new_line.loopback != 1)
			return -EINVAL;

		port->clock_type = clk; 
		if (clk == CLOCK_INT)
			find_best_clock(new_line.clock_rate, &port->clock_rate,
					&port->clock_reg);
		else {
			port->clock_rate = 0;
			port->clock_reg = CLK42X_SPEED_2048KHZ;
		}
		port->loopback = new_line.loopback;

		spin_lock_irqsave(&npe_lock, flags);

		if (dev->flags & IFF_UP)
			hss_config(port);

		if (port->loopback || port->carrier)
			netif_carrier_on(port->netdev);
		else
			netif_carrier_off(port->netdev);
		spin_unlock_irqrestore(&npe_lock, flags);

		return 0;

	default:
		return hdlc_ioctl(dev, ifr, cmd);
	}
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:71，代码来源:ixp4xx_hss.c



注：本文中的dev_to_port函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

鲜花
握手
雷人
路过
鸡蛋
该文章已有0人参与评论

请发表评论

全部评论

专题导读
More+
上一篇：
C++ dev_to_sdio_func函数代码示例发布时间：2022-05-30
下一篇：
C++ dev_to_mmc_card函数代码示例发布时间：2022-05-30
热门推荐
More+
热门话题
More+
阅读排行榜

扫描微信二维码

查看手机版网站

随时了解更新最新资讯

139-2527-9053

在线客服（服务时间 9:00～18:00）

在线QQ客服
地址：深圳市南山区西丽大学城创智工业园
电邮：jeky_zhao#qq.com
移动电话：139-2527-9053

Powered by 互联科技 X3.4© 2001-2213 极客世界.|Sitemap