958 lines
22 KiB
C
958 lines
22 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2002 Petko Manolov (petkan@users.sourceforge.net)
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*/
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#include <linux/signal.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/mii.h>
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#include <linux/ethtool.h>
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#include <linux/usb.h>
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#include <linux/uaccess.h>
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/* Version Information */
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#define DRIVER_VERSION "v0.6.2 (2004/08/27)"
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#define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>"
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#define DRIVER_DESC "rtl8150 based usb-ethernet driver"
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#define IDR 0x0120
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#define MAR 0x0126
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#define CR 0x012e
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#define TCR 0x012f
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#define RCR 0x0130
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#define TSR 0x0132
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#define RSR 0x0133
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#define CON0 0x0135
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#define CON1 0x0136
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#define MSR 0x0137
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#define PHYADD 0x0138
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#define PHYDAT 0x0139
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#define PHYCNT 0x013b
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#define GPPC 0x013d
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#define BMCR 0x0140
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#define BMSR 0x0142
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#define ANAR 0x0144
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#define ANLP 0x0146
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#define AER 0x0148
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#define CSCR 0x014C /* This one has the link status */
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#define CSCR_LINK_STATUS (1 << 3)
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#define IDR_EEPROM 0x1202
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#define PHY_READ 0
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#define PHY_WRITE 0x20
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#define PHY_GO 0x40
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#define MII_TIMEOUT 10
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#define INTBUFSIZE 8
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#define RTL8150_REQT_READ 0xc0
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#define RTL8150_REQT_WRITE 0x40
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#define RTL8150_REQ_GET_REGS 0x05
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#define RTL8150_REQ_SET_REGS 0x05
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/* Transmit status register errors */
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#define TSR_ECOL (1<<5)
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#define TSR_LCOL (1<<4)
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#define TSR_LOSS_CRS (1<<3)
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#define TSR_JBR (1<<2)
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#define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR)
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/* Receive status register errors */
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#define RSR_CRC (1<<2)
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#define RSR_FAE (1<<1)
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#define RSR_ERRORS (RSR_CRC | RSR_FAE)
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/* Media status register definitions */
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#define MSR_DUPLEX (1<<4)
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#define MSR_SPEED (1<<3)
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#define MSR_LINK (1<<2)
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/* Interrupt pipe data */
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#define INT_TSR 0x00
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#define INT_RSR 0x01
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#define INT_MSR 0x02
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#define INT_WAKSR 0x03
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#define INT_TXOK_CNT 0x04
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#define INT_RXLOST_CNT 0x05
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#define INT_CRERR_CNT 0x06
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#define INT_COL_CNT 0x07
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#define RTL8150_MTU 1540
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#define RTL8150_TX_TIMEOUT (HZ)
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#define RX_SKB_POOL_SIZE 4
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/* rtl8150 flags */
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#define RTL8150_HW_CRC 0
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#define RX_REG_SET 1
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#define RTL8150_UNPLUG 2
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#define RX_URB_FAIL 3
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/* Define these values to match your device */
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#define VENDOR_ID_REALTEK 0x0bda
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#define VENDOR_ID_MELCO 0x0411
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#define VENDOR_ID_MICRONET 0x3980
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#define VENDOR_ID_LONGSHINE 0x07b8
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#define VENDOR_ID_OQO 0x1557
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#define VENDOR_ID_ZYXEL 0x0586
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#define PRODUCT_ID_RTL8150 0x8150
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#define PRODUCT_ID_LUAKTX 0x0012
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#define PRODUCT_ID_LCS8138TX 0x401a
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#define PRODUCT_ID_SP128AR 0x0003
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#define PRODUCT_ID_PRESTIGE 0x401a
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#undef EEPROM_WRITE
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/* table of devices that work with this driver */
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static const struct usb_device_id rtl8150_table[] = {
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{USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8150)},
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{USB_DEVICE(VENDOR_ID_MELCO, PRODUCT_ID_LUAKTX)},
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{USB_DEVICE(VENDOR_ID_MICRONET, PRODUCT_ID_SP128AR)},
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{USB_DEVICE(VENDOR_ID_LONGSHINE, PRODUCT_ID_LCS8138TX)},
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{USB_DEVICE(VENDOR_ID_OQO, PRODUCT_ID_RTL8150)},
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{USB_DEVICE(VENDOR_ID_ZYXEL, PRODUCT_ID_PRESTIGE)},
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{}
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};
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MODULE_DEVICE_TABLE(usb, rtl8150_table);
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struct rtl8150 {
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unsigned long flags;
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struct usb_device *udev;
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struct tasklet_struct tl;
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struct net_device *netdev;
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struct urb *rx_urb, *tx_urb, *intr_urb;
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struct sk_buff *tx_skb, *rx_skb;
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struct sk_buff *rx_skb_pool[RX_SKB_POOL_SIZE];
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spinlock_t rx_pool_lock;
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struct usb_ctrlrequest dr;
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int intr_interval;
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u8 *intr_buff;
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u8 phy;
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};
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typedef struct rtl8150 rtl8150_t;
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struct async_req {
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struct usb_ctrlrequest dr;
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u16 rx_creg;
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};
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static const char driver_name [] = "rtl8150";
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/*
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**
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** device related part of the code
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**
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*/
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static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
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{
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return usb_control_msg_recv(dev->udev, 0, RTL8150_REQ_GET_REGS,
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RTL8150_REQT_READ, indx, 0, data, size,
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1000, GFP_NOIO);
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}
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static int set_registers(rtl8150_t * dev, u16 indx, u16 size, const void *data)
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{
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return usb_control_msg_send(dev->udev, 0, RTL8150_REQ_SET_REGS,
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RTL8150_REQT_WRITE, indx, 0, data, size,
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1000, GFP_NOIO);
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}
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static void async_set_reg_cb(struct urb *urb)
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{
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struct async_req *req = (struct async_req *)urb->context;
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int status = urb->status;
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if (status < 0)
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dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status);
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kfree(req);
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usb_free_urb(urb);
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}
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static int async_set_registers(rtl8150_t *dev, u16 indx, u16 size, u16 reg)
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{
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int res = -ENOMEM;
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struct urb *async_urb;
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struct async_req *req;
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req = kmalloc(sizeof(struct async_req), GFP_ATOMIC);
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if (req == NULL)
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return res;
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async_urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (async_urb == NULL) {
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kfree(req);
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return res;
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}
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req->rx_creg = cpu_to_le16(reg);
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req->dr.bRequestType = RTL8150_REQT_WRITE;
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req->dr.bRequest = RTL8150_REQ_SET_REGS;
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req->dr.wIndex = 0;
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req->dr.wValue = cpu_to_le16(indx);
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req->dr.wLength = cpu_to_le16(size);
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usb_fill_control_urb(async_urb, dev->udev,
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usb_sndctrlpipe(dev->udev, 0), (void *)&req->dr,
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&req->rx_creg, size, async_set_reg_cb, req);
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res = usb_submit_urb(async_urb, GFP_ATOMIC);
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if (res) {
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if (res == -ENODEV)
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netif_device_detach(dev->netdev);
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dev_err(&dev->udev->dev, "%s failed with %d\n", __func__, res);
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}
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return res;
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}
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static int read_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 * reg)
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{
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int i;
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u8 data[3], tmp;
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data[0] = phy;
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data[1] = data[2] = 0;
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tmp = indx | PHY_READ | PHY_GO;
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i = 0;
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set_registers(dev, PHYADD, sizeof(data), data);
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set_registers(dev, PHYCNT, 1, &tmp);
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do {
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get_registers(dev, PHYCNT, 1, data);
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} while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT));
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if (i <= MII_TIMEOUT) {
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get_registers(dev, PHYDAT, 2, data);
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*reg = data[0] | (data[1] << 8);
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return 0;
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} else
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return 1;
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}
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static int write_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 reg)
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{
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int i;
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u8 data[3], tmp;
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data[0] = phy;
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data[1] = reg & 0xff;
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data[2] = (reg >> 8) & 0xff;
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tmp = indx | PHY_WRITE | PHY_GO;
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i = 0;
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set_registers(dev, PHYADD, sizeof(data), data);
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set_registers(dev, PHYCNT, 1, &tmp);
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do {
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get_registers(dev, PHYCNT, 1, data);
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} while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT));
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if (i <= MII_TIMEOUT)
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return 0;
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else
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return 1;
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}
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static void set_ethernet_addr(rtl8150_t *dev)
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{
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u8 node_id[ETH_ALEN];
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int ret;
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ret = get_registers(dev, IDR, sizeof(node_id), node_id);
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if (!ret) {
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eth_hw_addr_set(dev->netdev, node_id);
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} else {
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eth_hw_addr_random(dev->netdev);
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netdev_notice(dev->netdev, "Assigned a random MAC address: %pM\n",
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dev->netdev->dev_addr);
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}
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}
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static int rtl8150_set_mac_address(struct net_device *netdev, void *p)
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{
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struct sockaddr *addr = p;
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rtl8150_t *dev = netdev_priv(netdev);
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if (netif_running(netdev))
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return -EBUSY;
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eth_hw_addr_set(netdev, addr->sa_data);
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netdev_dbg(netdev, "Setting MAC address to %pM\n", netdev->dev_addr);
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/* Set the IDR registers. */
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set_registers(dev, IDR, netdev->addr_len, netdev->dev_addr);
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#ifdef EEPROM_WRITE
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{
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int i;
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u8 cr;
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/* Get the CR contents. */
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get_registers(dev, CR, 1, &cr);
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/* Set the WEPROM bit (eeprom write enable). */
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cr |= 0x20;
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set_registers(dev, CR, 1, &cr);
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/* Write the MAC address into eeprom. Eeprom writes must be word-sized,
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so we need to split them up. */
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for (i = 0; i * 2 < netdev->addr_len; i++) {
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set_registers(dev, IDR_EEPROM + (i * 2), 2,
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netdev->dev_addr + (i * 2));
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}
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/* Clear the WEPROM bit (preventing accidental eeprom writes). */
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cr &= 0xdf;
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set_registers(dev, CR, 1, &cr);
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}
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#endif
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return 0;
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}
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static int rtl8150_reset(rtl8150_t * dev)
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{
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u8 data = 0x10;
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int i = HZ;
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set_registers(dev, CR, 1, &data);
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do {
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get_registers(dev, CR, 1, &data);
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} while ((data & 0x10) && --i);
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return (i > 0) ? 1 : 0;
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}
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static int alloc_all_urbs(rtl8150_t * dev)
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{
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dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!dev->rx_urb)
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return 0;
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dev->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!dev->tx_urb) {
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usb_free_urb(dev->rx_urb);
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return 0;
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}
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dev->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!dev->intr_urb) {
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usb_free_urb(dev->rx_urb);
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usb_free_urb(dev->tx_urb);
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return 0;
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}
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return 1;
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}
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static void free_all_urbs(rtl8150_t * dev)
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{
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usb_free_urb(dev->rx_urb);
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usb_free_urb(dev->tx_urb);
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usb_free_urb(dev->intr_urb);
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}
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static void unlink_all_urbs(rtl8150_t * dev)
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{
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usb_kill_urb(dev->rx_urb);
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usb_kill_urb(dev->tx_urb);
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usb_kill_urb(dev->intr_urb);
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}
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static inline struct sk_buff *pull_skb(rtl8150_t *dev)
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{
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struct sk_buff *skb;
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int i;
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for (i = 0; i < RX_SKB_POOL_SIZE; i++) {
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if (dev->rx_skb_pool[i]) {
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skb = dev->rx_skb_pool[i];
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dev->rx_skb_pool[i] = NULL;
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return skb;
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}
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}
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return NULL;
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}
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static void read_bulk_callback(struct urb *urb)
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{
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rtl8150_t *dev;
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unsigned pkt_len, res;
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struct sk_buff *skb;
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struct net_device *netdev;
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int status = urb->status;
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int result;
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unsigned long flags;
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dev = urb->context;
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if (!dev)
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return;
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if (test_bit(RTL8150_UNPLUG, &dev->flags))
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return;
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netdev = dev->netdev;
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if (!netif_device_present(netdev))
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return;
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switch (status) {
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case 0:
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break;
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case -ENOENT:
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return; /* the urb is in unlink state */
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case -ETIME:
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if (printk_ratelimit())
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dev_warn(&urb->dev->dev, "may be reset is needed?..\n");
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goto goon;
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default:
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if (printk_ratelimit())
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dev_warn(&urb->dev->dev, "Rx status %d\n", status);
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goto goon;
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}
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if (!dev->rx_skb)
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goto resched;
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/* protect against short packets (tell me why we got some?!?) */
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if (urb->actual_length < 4)
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goto goon;
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res = urb->actual_length;
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pkt_len = res - 4;
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skb_put(dev->rx_skb, pkt_len);
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dev->rx_skb->protocol = eth_type_trans(dev->rx_skb, netdev);
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netif_rx(dev->rx_skb);
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netdev->stats.rx_packets++;
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netdev->stats.rx_bytes += pkt_len;
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spin_lock_irqsave(&dev->rx_pool_lock, flags);
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skb = pull_skb(dev);
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spin_unlock_irqrestore(&dev->rx_pool_lock, flags);
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if (!skb)
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goto resched;
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dev->rx_skb = skb;
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goon:
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usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1),
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dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev);
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result = usb_submit_urb(dev->rx_urb, GFP_ATOMIC);
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if (result == -ENODEV)
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netif_device_detach(dev->netdev);
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else if (result) {
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set_bit(RX_URB_FAIL, &dev->flags);
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goto resched;
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} else {
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clear_bit(RX_URB_FAIL, &dev->flags);
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}
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return;
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resched:
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tasklet_schedule(&dev->tl);
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}
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static void write_bulk_callback(struct urb *urb)
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{
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rtl8150_t *dev;
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int status = urb->status;
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dev = urb->context;
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if (!dev)
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return;
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dev_kfree_skb_irq(dev->tx_skb);
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if (!netif_device_present(dev->netdev))
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return;
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if (status)
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dev_info(&urb->dev->dev, "%s: Tx status %d\n",
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dev->netdev->name, status);
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netif_trans_update(dev->netdev);
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netif_wake_queue(dev->netdev);
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}
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static void intr_callback(struct urb *urb)
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{
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rtl8150_t *dev;
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__u8 *d;
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int status = urb->status;
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int res;
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dev = urb->context;
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if (!dev)
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return;
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switch (status) {
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case 0: /* success */
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break;
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case -ECONNRESET: /* unlink */
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case -ENOENT:
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case -ESHUTDOWN:
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return;
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/* -EPIPE: should clear the halt */
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default:
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dev_info(&urb->dev->dev, "%s: intr status %d\n",
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dev->netdev->name, status);
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goto resubmit;
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}
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d = urb->transfer_buffer;
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if (d[0] & TSR_ERRORS) {
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dev->netdev->stats.tx_errors++;
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if (d[INT_TSR] & (TSR_ECOL | TSR_JBR))
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dev->netdev->stats.tx_aborted_errors++;
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if (d[INT_TSR] & TSR_LCOL)
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dev->netdev->stats.tx_window_errors++;
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if (d[INT_TSR] & TSR_LOSS_CRS)
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dev->netdev->stats.tx_carrier_errors++;
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}
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/* Report link status changes to the network stack */
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if ((d[INT_MSR] & MSR_LINK) == 0) {
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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(struct tasklet_struct *t)
|
|
{
|
|
struct rtl8150 *dev = from_tasklet(dev, t, tl);
|
|
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, unsigned int txqueue)
|
|
{
|
|
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);
|
|
|
|
strscpy(info->driver, driver_name, sizeof(info->driver));
|
|
strscpy(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_siocdevprivate(struct net_device *netdev, struct ifreq *rq,
|
|
void __user *udata, 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;
|
|
fallthrough;
|
|
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_siocdevprivate = rtl8150_siocdevprivate,
|
|
.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_setup(&dev->tl, rx_fixup);
|
|
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");
|