[PATCH] usbnet: Convert ASIX code to use new status infrastructure
Modify the ASIX USB Ethernet code to make use of the new status infrastructure in usbnet. Additionally, add a link_reset() handler to the struct usbnet structure to provide a generic means for a driver to perform link reset tasks such as a determining link speed and setting device flags accordingly. Signed-off-by: David Hollis <dhollis@davehollis.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Hollis
Greg KH
parent
fb3b4ebc0b
commit
7ea13c9c0e
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@ -210,6 +210,7 @@ struct usbnet {
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# define EVENT_RX_HALT 1
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# define EVENT_RX_MEMORY 2
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# define EVENT_STS_SPLIT 3
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# define EVENT_LINK_RESET 4
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};
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// device-specific info used by the driver
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@ -243,6 +244,9 @@ struct driver_info {
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/* for status polling */
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void (*status)(struct usbnet *, struct urb *);
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/* link reset handling, called from defer_kevent */
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int (*link_reset)(struct usbnet *);
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/* fixup rx packet (strip framing) */
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int (*rx_fixup)(struct usbnet *dev, struct sk_buff *skb);
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@ -304,6 +308,7 @@ static void usbnet_get_drvinfo (struct net_device *, struct ethtool_drvinfo *);
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static u32 usbnet_get_link (struct net_device *);
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static u32 usbnet_get_msglevel (struct net_device *);
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static void usbnet_set_msglevel (struct net_device *, u32);
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static void defer_kevent (struct usbnet *, int);
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/* mostly for PDA style devices, which are always connected if present */
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static int always_connected (struct usbnet *dev)
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@ -501,6 +506,7 @@ static const struct driver_info an2720_info = {
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#define AX_CMD_WRITE_MULTI_FILTER 0x16
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#define AX_CMD_READ_NODE_ID 0x17
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#define AX_CMD_READ_PHY_ID 0x19
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#define AX_CMD_READ_MEDIUM_STATUS 0x1a
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#define AX_CMD_WRITE_MEDIUM_MODE 0x1b
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#define AX_CMD_READ_MONITOR_MODE 0x1c
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#define AX_CMD_WRITE_MONITOR_MODE 0x1d
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@ -515,11 +521,14 @@ static const struct driver_info an2720_info = {
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#define AX_MONITOR_MAGIC 0x04
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#define AX_MONITOR_HSFS 0x10
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/* AX88172 Medium Status Register values */
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#define AX_MEDIUM_FULL_DUPLEX 0x02
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#define AX_MEDIUM_TX_ABORT_ALLOW 0x04
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#define AX_MEDIUM_FLOW_CONTROL_EN 0x10
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#define AX_MCAST_FILTER_SIZE 8
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#define AX_MAX_MCAST 64
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#define AX_INTERRUPT_BUFSIZE 8
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#define AX_EEPROM_LEN 0x40
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#define AX_SWRESET_CLEAR 0x00
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@ -535,15 +544,33 @@ static const struct driver_info an2720_info = {
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#define AX88772_IPG1_DEFAULT 0x0c
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#define AX88772_IPG2_DEFAULT 0x12
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#define AX88772_MEDIUM_FULL_DUPLEX 0x0002
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#define AX88772_MEDIUM_RESERVED 0x0004
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#define AX88772_MEDIUM_RX_FC_ENABLE 0x0010
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#define AX88772_MEDIUM_TX_FC_ENABLE 0x0020
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#define AX88772_MEDIUM_PAUSE_FORMAT 0x0080
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#define AX88772_MEDIUM_RX_ENABLE 0x0100
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#define AX88772_MEDIUM_100MB 0x0200
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#define AX88772_MEDIUM_DEFAULT \
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(AX88772_MEDIUM_FULL_DUPLEX | AX88772_MEDIUM_RX_FC_ENABLE | \
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AX88772_MEDIUM_TX_FC_ENABLE | AX88772_MEDIUM_100MB | \
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AX88772_MEDIUM_RESERVED | AX88772_MEDIUM_RX_ENABLE )
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#define AX_EEPROM_MAGIC 0xdeadbeef
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/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
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struct ax8817x_data {
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u8 multi_filter[AX_MCAST_FILTER_SIZE];
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struct urb *int_urb;
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u8 *int_buf;
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};
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struct ax88172_int_data {
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u16 res1;
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u8 link;
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u16 res2;
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u8 status;
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u16 res3;
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} __attribute__ ((packed));
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static int ax8817x_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
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u16 size, void *data)
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{
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@ -586,25 +613,23 @@ static void ax8817x_async_cmd_callback(struct urb *urb, struct pt_regs *regs)
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usb_free_urb(urb);
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}
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static void ax8817x_interrupt_complete(struct urb *urb, struct pt_regs *regs)
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static void ax8817x_status(struct usbnet *dev, struct urb *urb)
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{
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struct usbnet *dev = (struct usbnet *)urb->context;
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struct ax8817x_data *data = (struct ax8817x_data *)&dev->data;
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struct ax88172_int_data *event;
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int link;
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if (urb->status < 0) {
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devdbg(dev,"ax8817x_interrupt_complete() failed with %d",
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urb->status);
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} else {
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link = data->int_buf[2] & 0x01;
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if (netif_carrier_ok(dev->net) != link) {
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if (link)
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netif_carrier_on(dev->net);
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else
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netif_carrier_off(dev->net);
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devdbg(dev, "ax8817x - Link Status is: %d", link);
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}
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usb_submit_urb(data->int_urb, GFP_ATOMIC);
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if (urb->actual_length < 8)
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return;
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event = urb->transfer_buffer;
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link = event->link & 0x01;
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if (netif_carrier_ok(dev->net) != link) {
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if (link) {
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netif_carrier_on(dev->net);
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defer_kevent (dev, EVENT_LINK_RESET );
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} else
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netif_carrier_off(dev->net);
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devdbg(dev, "ax8817x - Link Status is: %d", link);
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}
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}
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@ -711,6 +736,20 @@ static void ax8817x_mdio_write(struct net_device *netdev, int phy_id, int loc, i
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ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf);
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}
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static int ax88172_link_reset(struct usbnet *dev)
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{
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u16 lpa;
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u8 mode;
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mode = AX_MEDIUM_TX_ABORT_ALLOW | AX_MEDIUM_FLOW_CONTROL_EN;
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lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA);
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if (lpa & LPA_DUPLEX)
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mode |= AX_MEDIUM_FULL_DUPLEX;
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ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
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return 0;
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}
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static void ax8817x_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
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{
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struct usbnet *dev = netdev_priv(net);
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@ -824,35 +863,13 @@ static int ax8817x_bind(struct usbnet *dev, struct usb_interface *intf)
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void *buf;
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int i;
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unsigned long gpio_bits = dev->driver_info->data;
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struct ax8817x_data *data = (struct ax8817x_data *)dev->data;
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get_endpoints(dev,intf);
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if ((data->int_urb = usb_alloc_urb (0, GFP_KERNEL)) == NULL) {
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dbg ("%s: cannot allocate interrupt URB",
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dev->net->name);
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ret = -ENOMEM;
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goto out1;
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}
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if ((data->int_buf = kmalloc(AX_INTERRUPT_BUFSIZE, GFP_KERNEL)) == NULL) {
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dbg ("%s: cannot allocate memory for interrupt buffer",
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dev->net->name);
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ret = -ENOMEM;
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goto out1;
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}
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memset(data->int_buf, 0, AX_INTERRUPT_BUFSIZE);
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usb_fill_int_urb (data->int_urb, dev->udev,
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usb_rcvintpipe (dev->udev, 1),
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data->int_buf, AX_INTERRUPT_BUFSIZE,
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ax8817x_interrupt_complete, dev,
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dev->udev->speed == USB_SPEED_HIGH ? 8 : 100);
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buf = kmalloc(ETH_ALEN, GFP_KERNEL);
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if(!buf) {
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ret = -ENOMEM;
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goto out2;
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goto out1;
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}
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/* Toggle the GPIOs in a manufacturer/model specific way */
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@ -860,32 +877,32 @@ static int ax8817x_bind(struct usbnet *dev, struct usb_interface *intf)
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if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS,
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(gpio_bits >> (i * 8)) & 0xff, 0, 0,
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buf)) < 0)
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goto out3;
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goto out2;
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msleep(5);
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}
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if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x80, 0, 0, buf)) < 0) {
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dbg("send AX_CMD_WRITE_RX_CTL failed: %d", ret);
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goto out3;
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goto out2;
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}
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/* Get the MAC address */
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memset(buf, 0, ETH_ALEN);
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if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, 6, buf)) < 0) {
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dbg("read AX_CMD_READ_NODE_ID failed: %d", ret);
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goto out3;
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goto out2;
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}
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memcpy(dev->net->dev_addr, buf, ETH_ALEN);
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/* Get the PHY id */
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if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) {
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dbg("error on read AX_CMD_READ_PHY_ID: %02x", ret);
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goto out3;
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goto out2;
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} else if (ret < 2) {
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/* this should always return 2 bytes */
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dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", ret);
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ret = -EIO;
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goto out3;
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goto out2;
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}
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/* Initialize MII structure */
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@ -899,36 +916,18 @@ static int ax8817x_bind(struct usbnet *dev, struct usb_interface *intf)
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dev->net->set_multicast_list = ax8817x_set_multicast;
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dev->net->ethtool_ops = &ax8817x_ethtool_ops;
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ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR,
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cpu_to_le16(BMCR_RESET));
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ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
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ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
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cpu_to_le16(ADVERTISE_ALL | ADVERTISE_CSMA | 0x0400));
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ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
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mii_nway_restart(&dev->mii);
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if((ret = usb_submit_urb(data->int_urb, GFP_KERNEL)) < 0) {
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dbg("Failed to submit interrupt URB: %02x", ret);
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goto out2;
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}
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return 0;
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out3:
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kfree(buf);
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out2:
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kfree(data->int_buf);
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kfree(buf);
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out1:
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usb_free_urb(data->int_urb);
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return ret;
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}
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static void ax8817x_unbind(struct usbnet *dev, struct usb_interface *intf)
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{
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struct ax8817x_data *data = (struct ax8817x_data *)dev->data;
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usb_kill_urb(data->int_urb);
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usb_free_urb(data->int_urb);
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kfree(data->int_buf);
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}
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static struct ethtool_ops ax88772_ethtool_ops = {
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.get_drvinfo = ax8817x_get_drvinfo,
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.get_link = ethtool_op_get_link,
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@ -946,64 +945,44 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
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{
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int ret;
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void *buf;
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struct ax8817x_data *data = (struct ax8817x_data *)dev->data;
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get_endpoints(dev,intf);
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if ((data->int_urb = usb_alloc_urb (0, GFP_KERNEL)) == 0) {
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dbg ("Cannot allocate interrupt URB");
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ret = -ENOMEM;
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goto out1;
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}
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if ((data->int_buf = kmalloc(AX_INTERRUPT_BUFSIZE, GFP_KERNEL)) == NULL) {
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dbg ("Cannot allocate memory for interrupt buffer");
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ret = -ENOMEM;
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goto out1;
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}
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memset(data->int_buf, 0, AX_INTERRUPT_BUFSIZE);
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usb_fill_int_urb (data->int_urb, dev->udev,
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usb_rcvintpipe (dev->udev, 1),
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data->int_buf, AX_INTERRUPT_BUFSIZE,
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ax8817x_interrupt_complete, dev,
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dev->udev->speed == USB_SPEED_HIGH ? 8 : 100);
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buf = kmalloc(6, GFP_KERNEL);
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if(!buf) {
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dbg ("Cannot allocate memory for buffer");
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ret = -ENOMEM;
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goto out2;
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goto out1;
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}
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if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS,
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0x00B0, 0, 0, buf)) < 0)
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goto out3;
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goto out2;
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msleep(5);
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if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0x0001, 0, 0, buf)) < 0) {
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dbg("Select PHY #1 failed: %d", ret);
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goto out3;
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goto out2;
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}
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if ((ret =
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ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPPD, 0, 0, buf)) < 0) {
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dbg("Failed to power down internal PHY: %d", ret);
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goto out3;
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goto out2;
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}
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msleep(150);
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if ((ret =
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ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_CLEAR, 0, 0, buf)) < 0) {
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dbg("Failed to perform software reset: %d", ret);
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goto out3;
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goto out2;
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}
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msleep(150);
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if ((ret =
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ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) {
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dbg("Failed to set Internal/External PHY reset control: %d", ret);
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goto out3;
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goto out2;
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}
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msleep(150);
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@ -1011,27 +990,27 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
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ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0000, 0, 0,
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buf)) < 0) {
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dbg("Failed to reset RX_CTL: %d", ret);
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goto out3;
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goto out2;
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}
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/* Get the MAC address */
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memset(buf, 0, ETH_ALEN);
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if ((ret = ax8817x_read_cmd(dev, AX88772_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf)) < 0) {
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dbg("Failed to read MAC address: %d", ret);
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goto out3;
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goto out2;
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}
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memcpy(dev->net->dev_addr, buf, ETH_ALEN);
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if ((ret = ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, buf)) < 0) {
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dbg("Enabling software MII failed: %d", ret);
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goto out3;
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goto out2;
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}
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if (((ret =
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ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, 0x0010, 2, 2, buf)) < 0)
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|| (*((u16 *)buf) != 0x003b)) {
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dbg("Read PHY register 2 must be 0x3b00: %d", ret);
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goto out3;
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goto out2;
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}
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/* Initialize MII structure */
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@ -1044,26 +1023,26 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
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/* Get the PHY id */
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if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) {
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dbg("Error reading PHY ID: %02x", ret);
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goto out3;
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goto out2;
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} else if (ret < 2) {
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/* this should always return 2 bytes */
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dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x",
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ret);
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ret = -EIO;
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goto out3;
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goto out2;
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}
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dev->mii.phy_id = *((u8 *)buf + 1);
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if ((ret =
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ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_PRL, 0, 0, buf)) < 0) {
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dbg("Set external PHY reset pin level: %d", ret);
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goto out3;
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goto out2;
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}
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msleep(150);
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if ((ret =
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ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) {
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dbg("Set Internal/External PHY reset control: %d", ret);
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goto out3;
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goto out2;
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}
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msleep(150);
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@ -1071,25 +1050,24 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
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dev->net->set_multicast_list = ax8817x_set_multicast;
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dev->net->ethtool_ops = &ax88772_ethtool_ops;
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ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR,
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cpu_to_le16(BMCR_RESET));
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ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
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ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
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cpu_to_le16(ADVERTISE_ALL | ADVERTISE_CSMA));
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ADVERTISE_ALL | ADVERTISE_CSMA);
|
||||
mii_nway_restart(&dev->mii);
|
||||
|
||||
if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, 0x0336, 0, 0, buf)) < 0) {
|
||||
if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, AX88772_MEDIUM_DEFAULT, 0, 0, buf)) < 0) {
|
||||
dbg("Write medium mode register: %d", ret);
|
||||
goto out3;
|
||||
goto out2;
|
||||
}
|
||||
|
||||
if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_IPG0, AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,AX88772_IPG2_DEFAULT, 0, buf)) < 0) {
|
||||
dbg("Write IPG,IPG1,IPG2 failed: %d", ret);
|
||||
goto out3;
|
||||
goto out2;
|
||||
}
|
||||
if ((ret =
|
||||
ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf)) < 0) {
|
||||
dbg("Failed to set hardware MII: %02x", ret);
|
||||
goto out3;
|
||||
goto out2;
|
||||
}
|
||||
|
||||
/* Set RX_CTL to default values with 2k buffer, and enable cactus */
|
||||
|
|
@ -1097,25 +1075,16 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
|
|||
ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0088, 0, 0,
|
||||
buf)) < 0) {
|
||||
dbg("Reset RX_CTL failed: %d", ret);
|
||||
goto out3;
|
||||
}
|
||||
|
||||
if((ret = usb_submit_urb(data->int_urb, GFP_KERNEL)) < 0) {
|
||||
dbg("Failed to submit interrupt URB: %02x", ret);
|
||||
goto out3;
|
||||
goto out2;
|
||||
}
|
||||
|
||||
kfree(buf);
|
||||
|
||||
return 0;
|
||||
|
||||
out3:
|
||||
kfree(buf);
|
||||
out2:
|
||||
kfree(data->int_buf);
|
||||
kfree(buf);
|
||||
out1:
|
||||
usb_free_urb(data->int_urb);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
@ -1213,10 +1182,29 @@ static struct sk_buff *ax88772_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
|
|||
return skb;
|
||||
}
|
||||
|
||||
static int ax88772_link_reset(struct usbnet *dev)
|
||||
{
|
||||
u16 lpa;
|
||||
u16 mode;
|
||||
|
||||
mode = AX88772_MEDIUM_DEFAULT;
|
||||
lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA);
|
||||
|
||||
if ((lpa & LPA_DUPLEX) == 0)
|
||||
mode &= ~AX88772_MEDIUM_FULL_DUPLEX;
|
||||
if ((lpa & LPA_100) == 0)
|
||||
mode &= ~AX88772_MEDIUM_100MB;
|
||||
ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct driver_info ax8817x_info = {
|
||||
.description = "ASIX AX8817x USB 2.0 Ethernet",
|
||||
.bind = ax8817x_bind,
|
||||
.unbind = ax8817x_unbind,
|
||||
.status = ax8817x_status,
|
||||
.link_reset = ax88172_link_reset,
|
||||
.reset = ax88172_link_reset,
|
||||
.flags = FLAG_ETHER,
|
||||
.data = 0x00130103,
|
||||
};
|
||||
|
|
@ -1224,7 +1212,9 @@ static const struct driver_info ax8817x_info = {
|
|||
static const struct driver_info dlink_dub_e100_info = {
|
||||
.description = "DLink DUB-E100 USB Ethernet",
|
||||
.bind = ax8817x_bind,
|
||||
.unbind = ax8817x_unbind,
|
||||
.status = ax8817x_status,
|
||||
.link_reset = ax88172_link_reset,
|
||||
.reset = ax88172_link_reset,
|
||||
.flags = FLAG_ETHER,
|
||||
.data = 0x009f9d9f,
|
||||
};
|
||||
|
|
@ -1232,7 +1222,9 @@ static const struct driver_info dlink_dub_e100_info = {
|
|||
static const struct driver_info netgear_fa120_info = {
|
||||
.description = "Netgear FA-120 USB Ethernet",
|
||||
.bind = ax8817x_bind,
|
||||
.unbind = ax8817x_unbind,
|
||||
.status = ax8817x_status,
|
||||
.link_reset = ax88172_link_reset,
|
||||
.reset = ax88172_link_reset,
|
||||
.flags = FLAG_ETHER,
|
||||
.data = 0x00130103,
|
||||
};
|
||||
|
|
@ -1240,7 +1232,9 @@ static const struct driver_info netgear_fa120_info = {
|
|||
static const struct driver_info hawking_uf200_info = {
|
||||
.description = "Hawking UF200 USB Ethernet",
|
||||
.bind = ax8817x_bind,
|
||||
.unbind = ax8817x_unbind,
|
||||
.status = ax8817x_status,
|
||||
.link_reset = ax88172_link_reset,
|
||||
.reset = ax88172_link_reset,
|
||||
.flags = FLAG_ETHER,
|
||||
.data = 0x001f1d1f,
|
||||
};
|
||||
|
|
@ -1248,7 +1242,9 @@ static const struct driver_info hawking_uf200_info = {
|
|||
static const struct driver_info ax88772_info = {
|
||||
.description = "ASIX AX88772 USB 2.0 Ethernet",
|
||||
.bind = ax88772_bind,
|
||||
.unbind = ax8817x_unbind,
|
||||
.status = ax8817x_status,
|
||||
.link_reset = ax88772_link_reset,
|
||||
.reset = ax88772_link_reset,
|
||||
.flags = FLAG_ETHER | FLAG_FRAMING_AX,
|
||||
.rx_fixup = ax88772_rx_fixup,
|
||||
.tx_fixup = ax88772_tx_fixup,
|
||||
|
|
@ -3307,6 +3303,19 @@ kevent (void *data)
|
|||
}
|
||||
}
|
||||
|
||||
if (test_bit (EVENT_LINK_RESET, &dev->flags)) {
|
||||
struct driver_info *info = dev->driver_info;
|
||||
int retval = 0;
|
||||
|
||||
clear_bit (EVENT_LINK_RESET, &dev->flags);
|
||||
if(info->link_reset && (retval = info->link_reset(dev)) < 0) {
|
||||
devinfo(dev, "link reset failed (%d) usbnet usb-%s-%s, %s",
|
||||
retval,
|
||||
dev->udev->bus->bus_name, dev->udev->devpath,
|
||||
info->description);
|
||||
}
|
||||
}
|
||||
|
||||
if (dev->flags)
|
||||
devdbg (dev, "kevent done, flags = 0x%lx",
|
||||
dev->flags);
|
||||
|
|
|
|||
Reference in New Issue