| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2002 Petko Manolov (petkan@users.sourceforge.net) |
| */ |
| |
| #include <linux/signal.h> |
| #include <linux/slab.h> |
| #include <linux/module.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/mii.h> |
| #include <linux/ethtool.h> |
| #include <linux/usb.h> |
| #include <linux/uaccess.h> |
| |
| /* Version Information */ |
| #define DRIVER_VERSION "v0.6.2 (2004/08/27)" |
| #define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>" |
| #define DRIVER_DESC "rtl8150 based usb-ethernet driver" |
| |
| #define IDR 0x0120 |
| #define MAR 0x0126 |
| #define CR 0x012e |
| #define TCR 0x012f |
| #define RCR 0x0130 |
| #define TSR 0x0132 |
| #define RSR 0x0133 |
| #define CON0 0x0135 |
| #define CON1 0x0136 |
| #define MSR 0x0137 |
| #define PHYADD 0x0138 |
| #define PHYDAT 0x0139 |
| #define PHYCNT 0x013b |
| #define GPPC 0x013d |
| #define BMCR 0x0140 |
| #define BMSR 0x0142 |
| #define ANAR 0x0144 |
| #define ANLP 0x0146 |
| #define AER 0x0148 |
| #define CSCR 0x014C /* This one has the link status */ |
| #define CSCR_LINK_STATUS (1 << 3) |
| |
| #define IDR_EEPROM 0x1202 |
| |
| #define PHY_READ 0 |
| #define PHY_WRITE 0x20 |
| #define PHY_GO 0x40 |
| |
| #define MII_TIMEOUT 10 |
| #define INTBUFSIZE 8 |
| |
| #define RTL8150_REQT_READ 0xc0 |
| #define RTL8150_REQT_WRITE 0x40 |
| #define RTL8150_REQ_GET_REGS 0x05 |
| #define RTL8150_REQ_SET_REGS 0x05 |
| |
| |
| /* Transmit status register errors */ |
| #define TSR_ECOL (1<<5) |
| #define TSR_LCOL (1<<4) |
| #define TSR_LOSS_CRS (1<<3) |
| #define TSR_JBR (1<<2) |
| #define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR) |
| /* Receive status register errors */ |
| #define RSR_CRC (1<<2) |
| #define RSR_FAE (1<<1) |
| #define RSR_ERRORS (RSR_CRC | RSR_FAE) |
| |
| /* Media status register definitions */ |
| #define MSR_DUPLEX (1<<4) |
| #define MSR_SPEED (1<<3) |
| #define MSR_LINK (1<<2) |
| |
| /* Interrupt pipe data */ |
| #define INT_TSR 0x00 |
| #define INT_RSR 0x01 |
| #define INT_MSR 0x02 |
| #define INT_WAKSR 0x03 |
| #define INT_TXOK_CNT 0x04 |
| #define INT_RXLOST_CNT 0x05 |
| #define INT_CRERR_CNT 0x06 |
| #define INT_COL_CNT 0x07 |
| |
| |
| #define RTL8150_MTU 1540 |
| #define RTL8150_TX_TIMEOUT (HZ) |
| #define RX_SKB_POOL_SIZE 4 |
| |
| /* rtl8150 flags */ |
| #define RTL8150_HW_CRC 0 |
| #define RX_REG_SET 1 |
| #define RTL8150_UNPLUG 2 |
| #define RX_URB_FAIL 3 |
| |
| /* Define these values to match your device */ |
| #define VENDOR_ID_REALTEK 0x0bda |
| #define VENDOR_ID_MELCO 0x0411 |
| #define VENDOR_ID_MICRONET 0x3980 |
| #define VENDOR_ID_LONGSHINE 0x07b8 |
| #define VENDOR_ID_OQO 0x1557 |
| #define VENDOR_ID_ZYXEL 0x0586 |
| |
| #define PRODUCT_ID_RTL8150 0x8150 |
| #define PRODUCT_ID_LUAKTX 0x0012 |
| #define PRODUCT_ID_LCS8138TX 0x401a |
| #define PRODUCT_ID_SP128AR 0x0003 |
| #define PRODUCT_ID_PRESTIGE 0x401a |
| |
| #undef EEPROM_WRITE |
| |
| /* table of devices that work with this driver */ |
| static const struct usb_device_id rtl8150_table[] = { |
| {USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8150)}, |
| {USB_DEVICE(VENDOR_ID_MELCO, PRODUCT_ID_LUAKTX)}, |
| {USB_DEVICE(VENDOR_ID_MICRONET, PRODUCT_ID_SP128AR)}, |
| {USB_DEVICE(VENDOR_ID_LONGSHINE, PRODUCT_ID_LCS8138TX)}, |
| {USB_DEVICE(VENDOR_ID_OQO, PRODUCT_ID_RTL8150)}, |
| {USB_DEVICE(VENDOR_ID_ZYXEL, PRODUCT_ID_PRESTIGE)}, |
| {} |
| }; |
| |
| MODULE_DEVICE_TABLE(usb, rtl8150_table); |
| |
| struct rtl8150 { |
| unsigned long flags; |
| struct usb_device *udev; |
| struct tasklet_struct tl; |
| struct net_device *netdev; |
| struct urb *rx_urb, *tx_urb, *intr_urb; |
| struct sk_buff *tx_skb, *rx_skb; |
| struct sk_buff *rx_skb_pool[RX_SKB_POOL_SIZE]; |
| spinlock_t rx_pool_lock; |
| struct usb_ctrlrequest dr; |
| int intr_interval; |
| u8 *intr_buff; |
| u8 phy; |
| }; |
| |
| typedef struct rtl8150 rtl8150_t; |
| |
| struct async_req { |
| struct usb_ctrlrequest dr; |
| u16 rx_creg; |
| }; |
| |
| static const char driver_name [] = "rtl8150"; |
| |
| /* |
| ** |
| ** device related part of the code |
| ** |
| */ |
| static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data) |
| { |
| void *buf; |
| int ret; |
| |
| buf = kmalloc(size, GFP_NOIO); |
| if (!buf) |
| return -ENOMEM; |
| |
| ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), |
| RTL8150_REQ_GET_REGS, RTL8150_REQT_READ, |
| indx, 0, buf, size, 500); |
| if (ret > 0 && ret <= size) |
| memcpy(data, buf, ret); |
| kfree(buf); |
| return ret; |
| } |
| |
| static int set_registers(rtl8150_t * dev, u16 indx, u16 size, const void *data) |
| { |
| void *buf; |
| int ret; |
| |
| buf = kmemdup(data, size, GFP_NOIO); |
| if (!buf) |
| return -ENOMEM; |
| |
| ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), |
| RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE, |
| indx, 0, buf, size, 500); |
| kfree(buf); |
| return ret; |
| } |
| |
| static void async_set_reg_cb(struct urb *urb) |
| { |
| struct async_req *req = (struct async_req *)urb->context; |
| int status = urb->status; |
| |
| if (status < 0) |
| dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status); |
| kfree(req); |
| usb_free_urb(urb); |
| } |
| |
| static int async_set_registers(rtl8150_t *dev, u16 indx, u16 size, u16 reg) |
| { |
| int res = -ENOMEM; |
| struct urb *async_urb; |
| struct async_req *req; |
| |
| req = kmalloc(sizeof(struct async_req), GFP_ATOMIC); |
| if (req == NULL) |
| return res; |
| async_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| if (async_urb == NULL) { |
| kfree(req); |
| return res; |
| } |
| req->rx_creg = cpu_to_le16(reg); |
| req->dr.bRequestType = RTL8150_REQT_WRITE; |
| req->dr.bRequest = RTL8150_REQ_SET_REGS; |
| req->dr.wIndex = 0; |
| req->dr.wValue = cpu_to_le16(indx); |
| req->dr.wLength = cpu_to_le16(size); |
| usb_fill_control_urb(async_urb, dev->udev, |
| usb_sndctrlpipe(dev->udev, 0), (void *)&req->dr, |
| &req->rx_creg, size, async_set_reg_cb, req); |
| res = usb_submit_urb(async_urb, GFP_ATOMIC); |
| if (res) { |
| if (res == -ENODEV) |
| netif_device_detach(dev->netdev); |
| dev_err(&dev->udev->dev, "%s failed with %d\n", __func__, res); |
| } |
| return res; |
| } |
| |
| static int read_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 * reg) |
| { |
| int i; |
| u8 data[3], tmp; |
| |
| data[0] = phy; |
| data[1] = data[2] = 0; |
| tmp = indx | PHY_READ | PHY_GO; |
| i = 0; |
| |
| set_registers(dev, PHYADD, sizeof(data), data); |
| set_registers(dev, PHYCNT, 1, &tmp); |
| do { |
| get_registers(dev, PHYCNT, 1, data); |
| } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT)); |
| |
| if (i <= MII_TIMEOUT) { |
| get_registers(dev, PHYDAT, 2, data); |
| *reg = data[0] | (data[1] << 8); |
| return 0; |
| } else |
| return 1; |
| } |
| |
| static int write_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 reg) |
| { |
| int i; |
| u8 data[3], tmp; |
| |
| data[0] = phy; |
| data[1] = reg & 0xff; |
| data[2] = (reg >> 8) & 0xff; |
| tmp = indx | PHY_WRITE | PHY_GO; |
| i = 0; |
| |
| set_registers(dev, PHYADD, sizeof(data), data); |
| set_registers(dev, PHYCNT, 1, &tmp); |
| do { |
| get_registers(dev, PHYCNT, 1, data); |
| } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT)); |
| |
| if (i <= MII_TIMEOUT) |
| return 0; |
| else |
| return 1; |
| } |
| |
| static void set_ethernet_addr(rtl8150_t *dev) |
| { |
| u8 node_id[ETH_ALEN]; |
| int ret; |
| |
| ret = get_registers(dev, IDR, sizeof(node_id), node_id); |
| |
| if (ret == sizeof(node_id)) { |
| ether_addr_copy(dev->netdev->dev_addr, node_id); |
| } else { |
| eth_hw_addr_random(dev->netdev); |
| netdev_notice(dev->netdev, "Assigned a random MAC address: %pM\n", |
| dev->netdev->dev_addr); |
| } |
| } |
| |
| static int rtl8150_set_mac_address(struct net_device *netdev, void *p) |
| { |
| struct sockaddr *addr = p; |
| rtl8150_t *dev = netdev_priv(netdev); |
| |
| if (netif_running(netdev)) |
| return -EBUSY; |
| |
| memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
| netdev_dbg(netdev, "Setting MAC address to %pM\n", netdev->dev_addr); |
| /* Set the IDR registers. */ |
| set_registers(dev, IDR, netdev->addr_len, netdev->dev_addr); |
| #ifdef EEPROM_WRITE |
| { |
| int i; |
| u8 cr; |
| /* Get the CR contents. */ |
| get_registers(dev, CR, 1, &cr); |
| /* Set the WEPROM bit (eeprom write enable). */ |
| cr |= 0x20; |
| set_registers(dev, CR, 1, &cr); |
| /* Write the MAC address into eeprom. Eeprom writes must be word-sized, |
| so we need to split them up. */ |
| for (i = 0; i * 2 < netdev->addr_len; i++) { |
| set_registers(dev, IDR_EEPROM + (i * 2), 2, |
| netdev->dev_addr + (i * 2)); |
| } |
| /* Clear the WEPROM bit (preventing accidental eeprom writes). */ |
| cr &= 0xdf; |
| set_registers(dev, CR, 1, &cr); |
| } |
| #endif |
| return 0; |
| } |
| |
| static int rtl8150_reset(rtl8150_t * dev) |
| { |
| u8 data = 0x10; |
| int i = HZ; |
| |
| set_registers(dev, CR, 1, &data); |
| do { |
| get_registers(dev, CR, 1, &data); |
| } while ((data & 0x10) && --i); |
| |
| return (i > 0) ? 1 : 0; |
| } |
| |
| static int alloc_all_urbs(rtl8150_t * dev) |
| { |
| dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| if (!dev->rx_urb) |
| return 0; |
| dev->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| if (!dev->tx_urb) { |
| usb_free_urb(dev->rx_urb); |
| return 0; |
| } |
| dev->intr_urb = usb_alloc_urb(0, GFP_KERNEL); |
| if (!dev->intr_urb) { |
| usb_free_urb(dev->rx_urb); |
| usb_free_urb(dev->tx_urb); |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| static void free_all_urbs(rtl8150_t * dev) |
| { |
| usb_free_urb(dev->rx_urb); |
| usb_free_urb(dev->tx_urb); |
| usb_free_urb(dev->intr_urb); |
| } |
| |
| static void unlink_all_urbs(rtl8150_t * dev) |
| { |
| usb_kill_urb(dev->rx_urb); |
| usb_kill_urb(dev->tx_urb); |
| usb_kill_urb(dev->intr_urb); |
| } |
| |
| static inline struct sk_buff *pull_skb(rtl8150_t *dev) |
| { |
| struct sk_buff *skb; |
| int i; |
| |
| for (i = 0; i < RX_SKB_POOL_SIZE; i++) { |
| if (dev->rx_skb_pool[i]) { |
| skb = dev->rx_skb_pool[i]; |
| dev->rx_skb_pool[i] = NULL; |
| return skb; |
| } |
| } |
| return NULL; |
| } |
| |
| static void read_bulk_callback(struct urb *urb) |
| { |
| rtl8150_t *dev; |
| unsigned pkt_len, res; |
| struct sk_buff *skb; |
| struct net_device *netdev; |
| int status = urb->status; |
| int result; |
| unsigned long flags; |
| |
| dev = urb->context; |
| if (!dev) |
| return; |
| if (test_bit(RTL8150_UNPLUG, &dev->flags)) |
| return; |
| netdev = dev->netdev; |
| if (!netif_device_present(netdev)) |
| return; |
| |
| switch (status) { |
| case 0: |
| break; |
| case -ENOENT: |
| return; /* the urb is in unlink state */ |
| case -ETIME: |
| if (printk_ratelimit()) |
| dev_warn(&urb->dev->dev, "may be reset is needed?..\n"); |
| goto goon; |
| default: |
| if (printk_ratelimit()) |
| dev_warn(&urb->dev->dev, "Rx status %d\n", status); |
| goto goon; |
| } |
| |
| if (!dev->rx_skb) |
| goto resched; |
| /* protect against short packets (tell me why we got some?!?) */ |
| if (urb->actual_length < 4) |
| goto goon; |
| |
| res = urb->actual_length; |
| pkt_len = res - 4; |
| |
| skb_put(dev->rx_skb, pkt_len); |
| dev->rx_skb->protocol = eth_type_trans(dev->rx_skb, netdev); |
| netif_rx(dev->rx_skb); |
| netdev->stats.rx_packets++; |
| netdev->stats.rx_bytes += pkt_len; |
| |
| spin_lock_irqsave(&dev->rx_pool_lock, flags); |
| skb = pull_skb(dev); |
| spin_unlock_irqrestore(&dev->rx_pool_lock, flags); |
| if (!skb) |
| goto resched; |
| |
| dev->rx_skb = skb; |
| goon: |
| usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), |
| dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); |
| result = usb_submit_urb(dev->rx_urb, GFP_ATOMIC); |
| if (result == -ENODEV) |
| netif_device_detach(dev->netdev); |
| else if (result) { |
| set_bit(RX_URB_FAIL, &dev->flags); |
| goto resched; |
| } else { |
| clear_bit(RX_URB_FAIL, &dev->flags); |
| } |
| |
| return; |
| resched: |
| tasklet_schedule(&dev->tl); |
| } |
| |
| static void write_bulk_callback(struct urb *urb) |
| { |
| rtl8150_t *dev; |
| int status = urb->status; |
| |
| dev = urb->context; |
| if (!dev) |
| return; |
| dev_kfree_skb_irq(dev->tx_skb); |
| if (!netif_device_present(dev->netdev)) |
| return; |
| if (status) |
| dev_info(&urb->dev->dev, "%s: Tx status %d\n", |
| dev->netdev->name, status); |
| netif_trans_update(dev->netdev); |
| netif_wake_queue(dev->netdev); |
| } |
| |
| static void intr_callback(struct urb *urb) |
| { |
| rtl8150_t *dev; |
| __u8 *d; |
| int status = urb->status; |
| int res; |
| |
| dev = urb->context; |
| if (!dev) |
| return; |
| switch (status) { |
| case 0: /* success */ |
| break; |
| case -ECONNRESET: /* unlink */ |
| case -ENOENT: |
| case -ESHUTDOWN: |
| return; |
| /* -EPIPE: should clear the halt */ |
| default: |
| dev_info(&urb->dev->dev, "%s: intr status %d\n", |
| dev->netdev->name, status); |
| goto resubmit; |
| } |
| |
| d = urb->transfer_buffer; |
| if (d[0] & TSR_ERRORS) { |
| dev->netdev->stats.tx_errors++; |
| if (d[INT_TSR] & (TSR_ECOL | TSR_JBR)) |
| dev->netdev->stats.tx_aborted_errors++; |
| if (d[INT_TSR] & TSR_LCOL) |
| dev->netdev->stats.tx_window_errors++; |
| if (d[INT_TSR] & TSR_LOSS_CRS) |
| dev->netdev->stats.tx_carrier_errors++; |
| } |
| /* Report link status changes to the network stack */ |
| if ((d[INT_MSR] & MSR_LINK) == 0) { |
| if (netif_carrier_ok(dev->netdev)) { |
| netif_carrier_off(dev->netdev); |
| netdev_dbg(dev->netdev, "%s: LINK LOST\n", __func__); |
| } |
| } else { |
| if (!netif_carrier_ok(dev->netdev)) { |
| netif_carrier_on(dev->netdev); |
| netdev_dbg(dev->netdev, "%s: LINK CAME BACK\n", __func__); |
| } |
| } |
| |
| resubmit: |
| res = usb_submit_urb (urb, GFP_ATOMIC); |
| if (res == -ENODEV) |
| netif_device_detach(dev->netdev); |
| else if (res) |
| dev_err(&dev->udev->dev, |
| "can't resubmit intr, %s-%s/input0, status %d\n", |
| dev->udev->bus->bus_name, dev->udev->devpath, res); |
| } |
| |
| static int rtl8150_suspend(struct usb_interface *intf, pm_message_t message) |
| { |
| rtl8150_t *dev = usb_get_intfdata(intf); |
| |
| netif_device_detach(dev->netdev); |
| |
| if (netif_running(dev->netdev)) { |
| usb_kill_urb(dev->rx_urb); |
| usb_kill_urb(dev->intr_urb); |
| } |
| return 0; |
| } |
| |
| static int rtl8150_resume(struct usb_interface *intf) |
| { |
| rtl8150_t *dev = usb_get_intfdata(intf); |
| |
| netif_device_attach(dev->netdev); |
| if (netif_running(dev->netdev)) { |
| dev->rx_urb->status = 0; |
| dev->rx_urb->actual_length = 0; |
| read_bulk_callback(dev->rx_urb); |
| |
| dev->intr_urb->status = 0; |
| dev->intr_urb->actual_length = 0; |
| intr_callback(dev->intr_urb); |
| } |
| return 0; |
| } |
| |
| /* |
| ** |
| ** network related part of the code |
| ** |
| */ |
| |
| static void fill_skb_pool(rtl8150_t *dev) |
| { |
| struct sk_buff *skb; |
| int i; |
| |
| for (i = 0; i < RX_SKB_POOL_SIZE; i++) { |
| if (dev->rx_skb_pool[i]) |
| continue; |
| skb = dev_alloc_skb(RTL8150_MTU + 2); |
| if (!skb) { |
| return; |
| } |
| skb_reserve(skb, 2); |
| dev->rx_skb_pool[i] = skb; |
| } |
| } |
| |
| static void free_skb_pool(rtl8150_t *dev) |
| { |
| int i; |
| |
| for (i = 0; i < RX_SKB_POOL_SIZE; i++) |
| dev_kfree_skb(dev->rx_skb_pool[i]); |
| } |
| |
| static void rx_fixup(unsigned long data) |
| { |
| struct rtl8150 *dev = (struct rtl8150 *)data; |
| struct sk_buff *skb; |
| int status; |
| |
| spin_lock_irq(&dev->rx_pool_lock); |
| fill_skb_pool(dev); |
| spin_unlock_irq(&dev->rx_pool_lock); |
| if (test_bit(RX_URB_FAIL, &dev->flags)) |
| if (dev->rx_skb) |
| goto try_again; |
| spin_lock_irq(&dev->rx_pool_lock); |
| skb = pull_skb(dev); |
| spin_unlock_irq(&dev->rx_pool_lock); |
| if (skb == NULL) |
| goto tlsched; |
| dev->rx_skb = skb; |
| usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), |
| dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); |
| try_again: |
| status = usb_submit_urb(dev->rx_urb, GFP_ATOMIC); |
| if (status == -ENODEV) { |
| netif_device_detach(dev->netdev); |
| } else if (status) { |
| set_bit(RX_URB_FAIL, &dev->flags); |
| goto tlsched; |
| } else { |
| clear_bit(RX_URB_FAIL, &dev->flags); |
| } |
| |
| return; |
| tlsched: |
| tasklet_schedule(&dev->tl); |
| } |
| |
| static int enable_net_traffic(rtl8150_t * dev) |
| { |
| u8 cr, tcr, rcr, msr; |
| |
| if (!rtl8150_reset(dev)) { |
| dev_warn(&dev->udev->dev, "device reset failed\n"); |
| } |
| /* RCR bit7=1 attach Rx info at the end; =0 HW CRC (which is broken) */ |
| rcr = 0x9e; |
| tcr = 0xd8; |
| cr = 0x0c; |
| if (!(rcr & 0x80)) |
| set_bit(RTL8150_HW_CRC, &dev->flags); |
| set_registers(dev, RCR, 1, &rcr); |
| set_registers(dev, TCR, 1, &tcr); |
| set_registers(dev, CR, 1, &cr); |
| get_registers(dev, MSR, 1, &msr); |
| |
| return 0; |
| } |
| |
| static void disable_net_traffic(rtl8150_t * dev) |
| { |
| u8 cr; |
| |
| get_registers(dev, CR, 1, &cr); |
| cr &= 0xf3; |
| set_registers(dev, CR, 1, &cr); |
| } |
| |
| static void rtl8150_tx_timeout(struct net_device *netdev) |
| { |
| rtl8150_t *dev = netdev_priv(netdev); |
| dev_warn(&netdev->dev, "Tx timeout.\n"); |
| usb_unlink_urb(dev->tx_urb); |
| netdev->stats.tx_errors++; |
| } |
| |
| static void rtl8150_set_multicast(struct net_device *netdev) |
| { |
| rtl8150_t *dev = netdev_priv(netdev); |
| u16 rx_creg = 0x9e; |
| |
| netif_stop_queue(netdev); |
| if (netdev->flags & IFF_PROMISC) { |
| rx_creg |= 0x0001; |
| dev_info(&netdev->dev, "%s: promiscuous mode\n", netdev->name); |
| } else if (!netdev_mc_empty(netdev) || |
| (netdev->flags & IFF_ALLMULTI)) { |
| rx_creg &= 0xfffe; |
| rx_creg |= 0x0002; |
| dev_dbg(&netdev->dev, "%s: allmulti set\n", netdev->name); |
| } else { |
| /* ~RX_MULTICAST, ~RX_PROMISCUOUS */ |
| rx_creg &= 0x00fc; |
| } |
| async_set_registers(dev, RCR, sizeof(rx_creg), rx_creg); |
| netif_wake_queue(netdev); |
| } |
| |
| static netdev_tx_t rtl8150_start_xmit(struct sk_buff *skb, |
| struct net_device *netdev) |
| { |
| rtl8150_t *dev = netdev_priv(netdev); |
| int count, res; |
| |
| netif_stop_queue(netdev); |
| count = (skb->len < 60) ? 60 : skb->len; |
| count = (count & 0x3f) ? count : count + 1; |
| dev->tx_skb = skb; |
| usb_fill_bulk_urb(dev->tx_urb, dev->udev, usb_sndbulkpipe(dev->udev, 2), |
| skb->data, count, write_bulk_callback, dev); |
| if ((res = usb_submit_urb(dev->tx_urb, GFP_ATOMIC))) { |
| /* Can we get/handle EPIPE here? */ |
| if (res == -ENODEV) |
| netif_device_detach(dev->netdev); |
| else { |
| dev_warn(&netdev->dev, "failed tx_urb %d\n", res); |
| netdev->stats.tx_errors++; |
| netif_start_queue(netdev); |
| } |
| } else { |
| netdev->stats.tx_packets++; |
| netdev->stats.tx_bytes += skb->len; |
| netif_trans_update(netdev); |
| } |
| |
| return NETDEV_TX_OK; |
| } |
| |
| |
| static void set_carrier(struct net_device *netdev) |
| { |
| rtl8150_t *dev = netdev_priv(netdev); |
| short tmp; |
| |
| get_registers(dev, CSCR, 2, &tmp); |
| if (tmp & CSCR_LINK_STATUS) |
| netif_carrier_on(netdev); |
| else |
| netif_carrier_off(netdev); |
| } |
| |
| static int rtl8150_open(struct net_device *netdev) |
| { |
| rtl8150_t *dev = netdev_priv(netdev); |
| int res; |
| |
| if (dev->rx_skb == NULL) |
| dev->rx_skb = pull_skb(dev); |
| if (!dev->rx_skb) |
| return -ENOMEM; |
| |
| set_registers(dev, IDR, 6, netdev->dev_addr); |
| |
| usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), |
| dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); |
| if ((res = usb_submit_urb(dev->rx_urb, GFP_KERNEL))) { |
| if (res == -ENODEV) |
| netif_device_detach(dev->netdev); |
| dev_warn(&netdev->dev, "rx_urb submit failed: %d\n", res); |
| return res; |
| } |
| usb_fill_int_urb(dev->intr_urb, dev->udev, usb_rcvintpipe(dev->udev, 3), |
| dev->intr_buff, INTBUFSIZE, intr_callback, |
| dev, dev->intr_interval); |
| if ((res = usb_submit_urb(dev->intr_urb, GFP_KERNEL))) { |
| if (res == -ENODEV) |
| netif_device_detach(dev->netdev); |
| dev_warn(&netdev->dev, "intr_urb submit failed: %d\n", res); |
| usb_kill_urb(dev->rx_urb); |
| return res; |
| } |
| enable_net_traffic(dev); |
| set_carrier(netdev); |
| netif_start_queue(netdev); |
| |
| return res; |
| } |
| |
| static int rtl8150_close(struct net_device *netdev) |
| { |
| rtl8150_t *dev = netdev_priv(netdev); |
| |
| netif_stop_queue(netdev); |
| if (!test_bit(RTL8150_UNPLUG, &dev->flags)) |
| disable_net_traffic(dev); |
| unlink_all_urbs(dev); |
| |
| return 0; |
| } |
| |
| static void rtl8150_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info) |
| { |
| rtl8150_t *dev = netdev_priv(netdev); |
| |
| strlcpy(info->driver, driver_name, sizeof(info->driver)); |
| strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); |
| usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info)); |
| } |
| |
| static int rtl8150_get_link_ksettings(struct net_device *netdev, |
| struct ethtool_link_ksettings *ecmd) |
| { |
| rtl8150_t *dev = netdev_priv(netdev); |
| short lpa, bmcr; |
| u32 supported; |
| |
| supported = (SUPPORTED_10baseT_Half | |
| SUPPORTED_10baseT_Full | |
| SUPPORTED_100baseT_Half | |
| SUPPORTED_100baseT_Full | |
| SUPPORTED_Autoneg | |
| SUPPORTED_TP | SUPPORTED_MII); |
| ecmd->base.port = PORT_TP; |
| ecmd->base.phy_address = dev->phy; |
| get_registers(dev, BMCR, 2, &bmcr); |
| get_registers(dev, ANLP, 2, &lpa); |
| if (bmcr & BMCR_ANENABLE) { |
| u32 speed = ((lpa & (LPA_100HALF | LPA_100FULL)) ? |
| SPEED_100 : SPEED_10); |
| ecmd->base.speed = speed; |
| ecmd->base.autoneg = AUTONEG_ENABLE; |
| if (speed == SPEED_100) |
| ecmd->base.duplex = (lpa & LPA_100FULL) ? |
| DUPLEX_FULL : DUPLEX_HALF; |
| else |
| ecmd->base.duplex = (lpa & LPA_10FULL) ? |
| DUPLEX_FULL : DUPLEX_HALF; |
| } else { |
| ecmd->base.autoneg = AUTONEG_DISABLE; |
| ecmd->base.speed = ((bmcr & BMCR_SPEED100) ? |
| SPEED_100 : SPEED_10); |
| ecmd->base.duplex = (bmcr & BMCR_FULLDPLX) ? |
| DUPLEX_FULL : DUPLEX_HALF; |
| } |
| |
| ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.supported, |
| supported); |
| |
| return 0; |
| } |
| |
| static const struct ethtool_ops ops = { |
| .get_drvinfo = rtl8150_get_drvinfo, |
| .get_link = ethtool_op_get_link, |
| .get_link_ksettings = rtl8150_get_link_ksettings, |
| }; |
| |
| static int rtl8150_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) |
| { |
| rtl8150_t *dev = netdev_priv(netdev); |
| u16 *data = (u16 *) & rq->ifr_ifru; |
| int res = 0; |
| |
| switch (cmd) { |
| case SIOCDEVPRIVATE: |
| data[0] = dev->phy; |
| /* fall through */ |
| case SIOCDEVPRIVATE + 1: |
| read_mii_word(dev, dev->phy, (data[1] & 0x1f), &data[3]); |
| break; |
| case SIOCDEVPRIVATE + 2: |
| if (!capable(CAP_NET_ADMIN)) |
| return -EPERM; |
| write_mii_word(dev, dev->phy, (data[1] & 0x1f), data[2]); |
| break; |
| default: |
| res = -EOPNOTSUPP; |
| } |
| |
| return res; |
| } |
| |
| static const struct net_device_ops rtl8150_netdev_ops = { |
| .ndo_open = rtl8150_open, |
| .ndo_stop = rtl8150_close, |
| .ndo_do_ioctl = rtl8150_ioctl, |
| .ndo_start_xmit = rtl8150_start_xmit, |
| .ndo_tx_timeout = rtl8150_tx_timeout, |
| .ndo_set_rx_mode = rtl8150_set_multicast, |
| .ndo_set_mac_address = rtl8150_set_mac_address, |
| |
| .ndo_validate_addr = eth_validate_addr, |
| }; |
| |
| static int rtl8150_probe(struct usb_interface *intf, |
| const struct usb_device_id *id) |
| { |
| struct usb_device *udev = interface_to_usbdev(intf); |
| rtl8150_t *dev; |
| struct net_device *netdev; |
| |
| netdev = alloc_etherdev(sizeof(rtl8150_t)); |
| if (!netdev) |
| return -ENOMEM; |
| |
| dev = netdev_priv(netdev); |
| |
| dev->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL); |
| if (!dev->intr_buff) { |
| free_netdev(netdev); |
| return -ENOMEM; |
| } |
| |
| tasklet_init(&dev->tl, rx_fixup, (unsigned long)dev); |
| spin_lock_init(&dev->rx_pool_lock); |
| |
| dev->udev = udev; |
| dev->netdev = netdev; |
| netdev->netdev_ops = &rtl8150_netdev_ops; |
| netdev->watchdog_timeo = RTL8150_TX_TIMEOUT; |
| netdev->ethtool_ops = &ops; |
| dev->intr_interval = 100; /* 100ms */ |
| |
| if (!alloc_all_urbs(dev)) { |
| dev_err(&intf->dev, "out of memory\n"); |
| goto out; |
| } |
| if (!rtl8150_reset(dev)) { |
| dev_err(&intf->dev, "couldn't reset the device\n"); |
| goto out1; |
| } |
| fill_skb_pool(dev); |
| set_ethernet_addr(dev); |
| |
| usb_set_intfdata(intf, dev); |
| SET_NETDEV_DEV(netdev, &intf->dev); |
| if (register_netdev(netdev) != 0) { |
| dev_err(&intf->dev, "couldn't register the device\n"); |
| goto out2; |
| } |
| |
| dev_info(&intf->dev, "%s: rtl8150 is detected\n", netdev->name); |
| |
| return 0; |
| |
| out2: |
| usb_set_intfdata(intf, NULL); |
| free_skb_pool(dev); |
| out1: |
| free_all_urbs(dev); |
| out: |
| kfree(dev->intr_buff); |
| free_netdev(netdev); |
| return -EIO; |
| } |
| |
| static void rtl8150_disconnect(struct usb_interface *intf) |
| { |
| rtl8150_t *dev = usb_get_intfdata(intf); |
| |
| usb_set_intfdata(intf, NULL); |
| if (dev) { |
| set_bit(RTL8150_UNPLUG, &dev->flags); |
| tasklet_kill(&dev->tl); |
| unregister_netdev(dev->netdev); |
| unlink_all_urbs(dev); |
| free_all_urbs(dev); |
| free_skb_pool(dev); |
| dev_kfree_skb(dev->rx_skb); |
| kfree(dev->intr_buff); |
| free_netdev(dev->netdev); |
| } |
| } |
| |
| static struct usb_driver rtl8150_driver = { |
| .name = driver_name, |
| .probe = rtl8150_probe, |
| .disconnect = rtl8150_disconnect, |
| .id_table = rtl8150_table, |
| .suspend = rtl8150_suspend, |
| .resume = rtl8150_resume, |
| .disable_hub_initiated_lpm = 1, |
| }; |
| |
| module_usb_driver(rtl8150_driver); |
| |
| MODULE_AUTHOR(DRIVER_AUTHOR); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_LICENSE("GPL"); |