Pre install kernel header
sudo pacman -S –noconfirm linux-headersuptech USB ether - NET 101 USB 2.0
dm9620.c - Source code
/*
* Davicom DM9620 USB 2.0 10/100Mbps ethernet devices
*
* Peter Korsgaard <jacmet@sunsite.dk>
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
* V1.0 - ftp fail fixed
* V1.1 - model name checking, & ether plug function enhancement [0x4f, 0x20]
* V1.2 - init tx/rx checksum
* - fix dm_write_shared_word(), bug fix
* - fix 10 Mbps link at power saving mode fail
* V1.3 - Support kernel 2.6.31
* V1.4 - Support eeprom write of ethtool
* Support DM9685
* Transmit Check Sum Control by Optopn (Source Code Default: Disable)
* Recieve Drop Check Sum Error Packet Disable as chip default
*/
//#define DEBUG
#include <linux/module.h>
//#include <linux/kernel.h> // new v1.3
#include <linux/sched.h>
#include <linux/stddef.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/usb.h>
#include <linux/crc32.h>
#include <linux/usb/usbnet.h>
#include <linux/ctype.h>
#include <linux/skbuff.h>
#include <linux/version.h> // new v1.3
/* datasheet:
http://www.davicom.com.tw
*/
/* control requests */
#define DM_READ_REGS 0x00
#define DM_WRITE_REGS 0x01
#define DM_READ_MEMS 0x02
#define DM_WRITE_REG 0x03
#define DM_WRITE_MEMS 0x05
#define DM_WRITE_MEM 0x07
/* registers */
#define DM_NET_CTRL 0x00
#define DM_RX_CTRL 0x05
#define DM_SHARED_CTRL 0x0b
#define DM_SHARED_ADDR 0x0c
#define DM_SHARED_DATA 0x0d /* low + high */
#define DM_EE_PHY_L 0x0d
#define DM_EE_PHY_H 0x0e
#define DM_WAKEUP_CTRL 0x0f
#define DM_PHY_ADDR 0x10 /* 6 bytes */
#define DM_MCAST_ADDR 0x16 /* 8 bytes */
#define DM_GPR_CTRL 0x1e
#define DM_GPR_DATA 0x1f
#define DM_XPHY_CTRL 0x2e
#define DM_TX_CRC_CTRL 0x31
#define DM_RX_CRC_CTRL 0x32
#define DM_SMIREG 0x91
#define USB_CTRL 0xf4
#define PHY_SPEC_CFG 20
#define MD96XX_EEPROM_MAGIC 0x9620
#define DM_MAX_MCAST 64
#define DM_MCAST_SIZE 8
#define DM_EEPROM_LEN 256
#define DM_TX_OVERHEAD 2 /* 2 byte header */
#define DM_RX_OVERHEAD_9601 7 /* 3 byte header + 4 byte crc tail */
#define DM_RX_OVERHEAD 8 /* 4 byte header + 4 byte crc tail */
#define DM_TIMEOUT 1000
#define DM_MODE9620 0x80
#define DM_TX_CS_EN 0 /* Transmit Check Sum Control */
struct dm96xx_priv {
int flag_fail_count;
u8 mode_9620;
};
static int dm_read(struct usbnet *dev, u8 reg, u16 length, void *data)
{
devdbg(dev, "dm_read() reg=0x%02x length=%d", reg, length);
return usb_control_msg(dev->udev,
usb_rcvctrlpipe(dev->udev, 0),
DM_READ_REGS,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0, reg, data, length, USB_CTRL_SET_TIMEOUT);
}
static int dm_read_reg(struct usbnet *dev, u8 reg, u8 *value)
{
return dm_read(dev, reg, 1, value);
}
static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data)
{
devdbg(dev, "dm_write() reg=0x%02x, length=%d", reg, length);
return usb_control_msg(dev->udev,
usb_sndctrlpipe(dev->udev, 0),
DM_WRITE_REGS,
USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE,
0, reg, data, length, USB_CTRL_SET_TIMEOUT);
}
static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value)
{
devdbg(dev, "dm_write_reg() reg=0x%02x, value=0x%02x", reg, value);
return usb_control_msg(dev->udev,
usb_sndctrlpipe(dev->udev, 0),
DM_WRITE_REG,
USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE,
value, reg, NULL, 0, USB_CTRL_SET_TIMEOUT);
}
static void dm_write_async_callback(struct urb *urb)
{
struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
if (urb->status < 0)
printk(KERN_DEBUG "dm_write_async_callback() failed with %d\n",
urb->status);
kfree(req);
usb_free_urb(urb);
}
static void dm_write_async_helper(struct usbnet *dev, u8 reg, u8 value,
u16 length, void *data)
{
struct usb_ctrlrequest *req;
struct urb *urb;
int status;
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb) {
deverr(dev, "Error allocating URB in dm_write_async_helper!");
return;
}
req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
if (!req) {
deverr(dev, "Failed to allocate memory for control request");
usb_free_urb(urb);
return;
}
req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
req->bRequest = length ? DM_WRITE_REGS : DM_WRITE_REG;
req->wValue = cpu_to_le16(value);
req->wIndex = cpu_to_le16(reg);
req->wLength = cpu_to_le16(length);
usb_fill_control_urb(urb, dev->udev,
usb_sndctrlpipe(dev->udev, 0),
(void *)req, data, length,
dm_write_async_callback, req);
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status < 0) {
deverr(dev, "Error submitting the control message: status=%d",
status);
kfree(req);
usb_free_urb(urb);
}
}
static void dm_write_async(struct usbnet *dev, u8 reg, u16 length, void *data)
{
devdbg(dev, "dm_write_async() reg=0x%02x length=%d", reg, length);
dm_write_async_helper(dev, reg, 0, length, data);
}
static void dm_write_reg_async(struct usbnet *dev, u8 reg, u8 value)
{
devdbg(dev, "dm_write_reg_async() reg=0x%02x value=0x%02x",
reg, value);
dm_write_async_helper(dev, reg, value, 0, NULL);
}
static int dm_read_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 *value)
{
int ret, i;
mutex_lock(&dev->phy_mutex);
dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg);
dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0xc : 0x4);
for (i = 0; i < DM_TIMEOUT; i++) {
u8 tmp;
udelay(1);
ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
if (ret < 0)
goto out;
/* ready */
if ((tmp & 1) == 0)
break;
}
if (i == DM_TIMEOUT) {
deverr(dev, "%s read timed out!", phy ? "phy" : "eeprom");
ret = -EIO;
goto out;
}
dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
ret = dm_read(dev, DM_SHARED_DATA, 2, value);
devdbg(dev, "read shared %d 0x%02x returned 0x%04x, %d",
phy, reg, *value, ret);
out:
mutex_unlock(&dev->phy_mutex);
return ret;
}
static int dm_write_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 value)
{
int ret, i;
mutex_lock(&dev->phy_mutex);
ret = dm_write(dev, DM_SHARED_DATA, 2, &value);
if (ret < 0)
goto out;
dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg);
//dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0x0a : 0x12);
if (!phy) dm_write_reg(dev, DM_SHARED_CTRL, 0x10);
dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0x0a : 0x12);
dm_write_reg(dev, DM_SHARED_CTRL, 0x10);
for (i = 0; i < DM_TIMEOUT; i++) {
u8 tmp;
udelay(1);
ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
if (ret < 0)
goto out;
/* ready */
if ((tmp & 1) == 0)
break;
}
if (i == DM_TIMEOUT) {
deverr(dev, "%s write timed out!", phy ? "phy" : "eeprom");
ret = -EIO;
goto out;
}
dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
out:
mutex_unlock(&dev->phy_mutex);
return ret;
}
static int dm_write_eeprom_word(struct usbnet *dev, int phy, u8 offset, u8 value)
{
int ret, i;
u8 reg,dloc;
__le16 eeword;
//devwarn(dev, " offset =0x%x value = 0x%x ", offset,value);
/* hank: from offset to determin eeprom word register location,reg */
reg = (offset >> 1)&0xff;
/* hank: high/low byte by odd/even of offset */
dloc = (offset & 0x01)? DM_EE_PHY_H:DM_EE_PHY_L;
/* retrieve high and low byte from the corresponding reg*/
ret=dm_read_shared_word(dev,0,reg,&eeword);
//devwarn(dev, " reg =0x%x dloc = 0x%x eeword = 0x%4x", reg,dloc,eeword);
mutex_lock(&dev->phy_mutex);
/* hank: write data to eeprom high/low byte reg */
dm_write(dev, (offset & 0x01)? DM_EE_PHY_H:DM_EE_PHY_L, 1, &value);
/* load the unaffected word to value */
(offset & 0x01)? (value = eeword << 8):(value = eeword >> 8);
/* write the not modified 8 bits back to its origional high/low byte reg */
dm_write(dev, (offset & 0x01)? DM_EE_PHY_L:DM_EE_PHY_H, 1, &value);
if (ret < 0)
goto out;
/* hank : write word location to reg 0x0c */
ret = dm_write_reg(dev, DM_SHARED_ADDR, reg);
if (!phy) dm_write_reg(dev, DM_SHARED_CTRL, 0x10);
dm_write_reg(dev, DM_SHARED_CTRL, 0x12);
dm_write_reg(dev, DM_SHARED_CTRL, 0x10);
for (i = 0; i < DM_TIMEOUT; i++) {
u8 tmp;
udelay(1);
ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
if (ret < 0)
goto out;
/* ready */
if ((tmp & 1) == 0)
break;
}
if (i == DM_TIMEOUT) {
deverr(dev, "%s write timed out!", phy ? "phy" : "eeprom");
ret = -EIO;
goto out;
}
//dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
out:
mutex_unlock(&dev->phy_mutex);
return ret;
}
static int dm_read_eeprom_word(struct usbnet *dev, u8 offset, void *value)
{
return dm_read_shared_word(dev, 0, offset, value);
}
static int dm9620_set_eeprom(struct net_device *net,struct ethtool_eeprom *eeprom, u8 *data)
{
struct usbnet *dev = netdev_priv(net);
devwarn(dev, "EEPROM: magic value, magic = 0x%x offset =0x%x data = 0x%x ",eeprom->magic, eeprom->offset,*data);
if (eeprom->magic != MD96XX_EEPROM_MAGIC) {
devwarn(dev, "EEPROM: magic value mismatch, magic = 0x%x",
eeprom->magic);
return -EINVAL;
}
if(dm_write_eeprom_word(dev, 0, eeprom->offset, *data) < 0)
return -EINVAL;
return 0;
}
static int dm9620_get_eeprom_len(struct net_device *dev)
{
return DM_EEPROM_LEN;
}
static int dm9620_get_eeprom(struct net_device *net,
struct ethtool_eeprom *eeprom, u8 * data)
{
struct usbnet *dev = netdev_priv(net);
__le16 *ebuf = (__le16 *) data;
int i;
/* access is 16bit */
if ((eeprom->offset % 2) || (eeprom->len % 2))
return -EINVAL;
for (i = 0; i < eeprom->len / 2; i++) {
if (dm_read_eeprom_word(dev, eeprom->offset / 2 + i,
&ebuf[i]) < 0)
return -EINVAL;
}
return 0;
}
static int dm9620_mdio_read(struct net_device *netdev, int phy_id, int loc)
{
struct usbnet *dev = netdev_priv(netdev);
__le16 res;
if (phy_id) {
devdbg(dev, "Only internal phy supported");
return 0;
}
dm_read_shared_word(dev, 1, loc, &res);
devdbg(dev,
"dm9620_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x",
phy_id, loc, le16_to_cpu(res));
return le16_to_cpu(res);
}
static void dm9620_mdio_write(struct net_device *netdev, int phy_id, int loc,
int val)
{
struct usbnet *dev = netdev_priv(netdev);
__le16 res = cpu_to_le16(val);
int mdio_val;
if (phy_id) {
devdbg(dev, "Only internal phy supported");
return;
}
devdbg(dev,"dm9620_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x",
phy_id, loc, val);
dm_write_shared_word(dev, 1, loc, res);
mdelay(1);
mdio_val = dm9620_mdio_read(netdev, phy_id, loc);
}
static void dm9620_get_drvinfo(struct net_device *net,
struct ethtool_drvinfo *info)
{
/* Inherit standard device info */
usbnet_get_drvinfo(net, info);
info->eedump_len = DM_EEPROM_LEN;
}
static u32 dm9620_get_link(struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
return mii_link_ok(&dev->mii);
}
static int dm9620_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
{
struct usbnet *dev = netdev_priv(net);
return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
}
#define DM_LINKEN (1<<5)
#define DM_MAGICEN (1<<3)
#define DM_LINKST (1<<2)
#define DM_MAGICST (1<<0)
static void
dm9620_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
{
struct usbnet *dev = netdev_priv(net);
u8 opt;
if (dm_read_reg(dev, DM_WAKEUP_CTRL, &opt) < 0) {
wolinfo->supported = 0;
wolinfo->wolopts = 0;
return;
}
wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
wolinfo->wolopts = 0;
if (opt & DM_LINKEN)
wolinfo->wolopts |= WAKE_PHY;
if (opt & DM_MAGICEN)
wolinfo->wolopts |= WAKE_MAGIC;
}
static int
dm9620_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
{
struct usbnet *dev = netdev_priv(net);
u8 opt = 0;
if (wolinfo->wolopts & WAKE_PHY)
opt |= DM_LINKEN;
if (wolinfo->wolopts & WAKE_MAGIC)
opt |= DM_MAGICEN;
dm_write_reg(dev, DM_NET_CTRL, 0x48); // enable WAKEEN
dm_write_reg(dev, 0x92, 0x3f); //keep clock on Hank Jun 30
return dm_write_reg(dev, DM_WAKEUP_CTRL, opt);
}
static struct ethtool_ops dm9620_ethtool_ops = {
.get_drvinfo = dm9620_get_drvinfo,
.get_link = dm9620_get_link,
.get_msglevel = usbnet_get_msglevel,
.set_msglevel = usbnet_set_msglevel,
.get_eeprom_len = dm9620_get_eeprom_len,
.get_eeprom = dm9620_get_eeprom,
.set_eeprom = dm9620_set_eeprom,
.get_settings = usbnet_get_settings,
.set_settings = usbnet_set_settings,
.nway_reset = usbnet_nway_reset,
.get_wol = dm9620_get_wol,
.set_wol = dm9620_set_wol,
};
static void dm9620_set_multicast(struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
/* We use the 20 byte dev->data for our 8 byte filter buffer
* to avoid allocating memory that is tricky to free later */
u8 *hashes = (u8 *) & dev->data;
u8 rx_ctl = 0x31;
memset(hashes, 0x00, DM_MCAST_SIZE);
hashes[DM_MCAST_SIZE - 1] |= 0x80; /* broadcast address */
if (net->flags & IFF_PROMISC) {
rx_ctl |= 0x02;
} else if (net->flags & IFF_ALLMULTI || net->mc_count > DM_MAX_MCAST) {
rx_ctl |= 0x04;
} else if (net->mc_count) {
struct dev_mc_list *mc_list = net->mc_list;
int i;
for (i = 0; i < net->mc_count; i++, mc_list = mc_list->next) {
u32 crc = ether_crc(ETH_ALEN, mc_list->dmi_addr) >> 26;
hashes[crc >> 3] |= 1 << (crc & 0x7);
}
}
dm_write_async(dev, DM_MCAST_ADDR, DM_MCAST_SIZE, hashes);
dm_write_reg_async(dev, DM_RX_CTRL, rx_ctl);
}
static void __dm9620_set_mac_address(struct usbnet *dev)
{
dm_write_async(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr);
}
static int dm9620_set_mac_address(struct net_device *net, void *p)
{
struct sockaddr *addr = p;
struct usbnet *dev = netdev_priv(net);
int i;
#if 1
printk("[dm96] Set mac addr %pM\n", addr->sa_data); // %x:%x:...
printk("[dm96] ");
for (i=0; i<net->addr_len; i++)
printk("[%02x] ", addr->sa_data[i]);
printk("\n");
#endif
if (!is_valid_ether_addr(addr->sa_data)) {
dev_err(&net->dev, "not setting invalid mac address %pM\n",
addr->sa_data);
return -EINVAL;
}
memcpy(net->dev_addr, addr->sa_data, net->addr_len);
__dm9620_set_mac_address(dev);
return 0;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
static const struct net_device_ops vm_netdev_ops= { // new kernel 2.6.31 (20091217JJ)
.ndo_open = usbnet_open,
.ndo_stop = usbnet_stop,
.ndo_start_xmit = usbnet_start_xmit,
.ndo_tx_timeout = usbnet_tx_timeout,
.ndo_change_mtu = usbnet_change_mtu,
.ndo_validate_addr = eth_validate_addr,
.ndo_do_ioctl = dm9620_ioctl,
.ndo_set_multicast_list = dm9620_set_multicast,
.ndo_set_mac_address = dm9620_set_mac_address,
};
#endif
static int dm9620_bind(struct usbnet *dev, struct usb_interface *intf)
{
int ret,mdio_val,i;
struct dm96xx_priv* priv;
u8 temp;
ret = usbnet_get_endpoints(dev, intf);
if (ret)
goto out;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
dev->net->netdev_ops = &vm_netdev_ops; // new kernel 2.6.31 (20091217JJ)
dev->net->ethtool_ops = &dm9620_ethtool_ops;
#else
dev->net->do_ioctl = dm9620_ioctl;
dev->net->set_multicast_list = dm9620_set_multicast;
dev->net->ethtool_ops = &dm9620_ethtool_ops;
#endif
dev->net->hard_header_len += DM_TX_OVERHEAD;
dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD+1; // ftp fail fixed
dev->mii.dev = dev->net;
dev->mii.mdio_read = dm9620_mdio_read;
dev->mii.mdio_write = dm9620_mdio_write;
dev->mii.phy_id_mask = 0x1f;
dev->mii.reg_num_mask = 0x1f;
/* reset */
dm_write_reg(dev, DM_XPHY_CTRL, 0); // dm9622/dm9685, bit[5](EXTERNAL), clear-it, add clk & limit to internal PHY
dm_write_reg(dev, DM_NET_CTRL, 1);
udelay(20);
/* Add V1.1, Enable auto link while plug in RJ45, Hank July 20, 2009*/
dm_write_reg(dev, USB_CTRL, 0x20);
/* read MAC */
if (dm_read(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr) < 0) {
printk(KERN_ERR "Error reading MAC address\n");
ret = -ENODEV;
goto out;
}
#if 1
printk("[dm96] Chk mac addr %pM\n", dev->net->dev_addr); // %x:%x...
printk("[dm96] ");
for (i=0; i<ETH_ALEN; i++)
printk("[%02x] ", dev->net->dev_addr[i]);
printk("\n");
#endif
/* read SMI mode register */
priv = dev->driver_priv = kmalloc(sizeof(struct dm96xx_priv), GFP_ATOMIC);
if (!priv) {
deverr(dev, "Failed to allocate memory for dm96xx_priv");
ret = -ENOMEM;
goto out;
}
/* work-around for 9620 mode */
printk("[dm96] Fixme: work around for 9620 mode\n");
printk("[dm96] Add tx_fixup() debug...\n");
dm_write_reg(dev, DM_MCAST_ADDR, 0); // clear data bus to 0s
dm_read_reg(dev, DM_MCAST_ADDR, &temp); // clear data bus to 0s
ret = dm_read_reg(dev, DM_SMIREG, &temp); // Must clear data bus before we can read the 'MODE9620' bit
priv->flag_fail_count= 0;
if (ret<0) {
printk(KERN_ERR "[dm96] Error read SMI register\n");
}
else priv->mode_9620 = temp & DM_MODE9620;
printk(KERN_WARNING "[dm96] 9620 Mode = %d\n", priv->mode_9620);
/* power up phy */
dm_write_reg(dev, DM_GPR_CTRL, 1);
dm_write_reg(dev, DM_GPR_DATA, 0);
/* Init tx/rx checksum */
#if DM_TX_CS_EN
dm_write_reg(dev, DM_TX_CRC_CTRL, 7);
#endif
dm_write_reg(dev, DM_RX_CRC_CTRL, 2);
/* receive broadcast packets */
dm9620_set_multicast(dev->net);
dm9620_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
/* Hank add, work for comapubility issue (10M Power control) */
dm9620_mdio_write(dev->net, dev->mii.phy_id, PHY_SPEC_CFG, 0x800);
//printk("[dm96] dm962++ write phy[20]= 0x800\n");
mdio_val = dm9620_mdio_read(dev->net, dev->mii.phy_id, PHY_SPEC_CFG);
//printk("[dm96] dm962++ read phy[20]= %x\n",mdio_val );
dm9620_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
mii_nway_restart(&dev->mii);
out:
return ret;
}
void dm9620_unbind(struct usbnet *dev, struct usb_interface *intf)
{
struct dm96xx_priv* priv= dev->driver_priv;
//u8 opt=0;
//int i;
printk("dm9620_unbind():\n");
printk("flag_fail_count %lu\n", (long unsigned int)priv->flag_fail_count);
kfree(dev->driver_priv); // displayed dev->.. above, then can free dev
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
printk("rx_length_errors %lu\n",dev->net->stats.rx_length_errors);
printk("rx_over_errors %lu\n",dev->net->stats.rx_over_errors );
printk("rx_crc_errors %lu\n",dev->net->stats.rx_crc_errors );
printk("rx_frame_errors %lu\n",dev->net->stats.rx_frame_errors );
printk("rx_fifo_errors %lu\n",dev->net->stats.rx_fifo_errors );
printk("rx_missed_errors %lu\n",dev->net->stats.rx_missed_errors);
#else
printk("rx_length_errors %lu\n",dev->stats.rx_length_errors);
printk("rx_over_errors %lu\n",dev->stats.rx_over_errors );
printk("rx_crc_errors %lu\n",dev->stats.rx_crc_errors );
printk("rx_frame_errors %lu\n",dev->stats.rx_frame_errors );
printk("rx_fifo_errors %lu\n",dev->stats.rx_fifo_errors );
printk("rx_missed_errors %lu\n",dev->stats.rx_missed_errors);
#endif
// check if dm9620 receive magic packet
//i=dm_read_reg(dev, DM_WAKEUP_CTRL, &opt);
// printk("rx_magic_packet %lu\n",i);
}
static int dm9620_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
u8 status;
int len;
struct dm96xx_priv* priv = (struct dm96xx_priv *)dev->driver_priv;
/* 9620 format:
b0: rx status
b1: packet length (incl crc) low
b2: packet length (incl crc) high
b3..n-4: packet data
bn-3..bn: ethernet crc
*/
/* 9620 format:
one additional byte then 9620 :
rx_flag in the first pos
*/
if (unlikely(skb->len < DM_RX_OVERHEAD_9601)) { // 20090623
dev_err(&dev->udev->dev, "unexpected tiny rx frame\n");
return 0;
}
if (priv->mode_9620) {
/* mode 9620 */
if (unlikely(skb->len < DM_RX_OVERHEAD)) { // 20090623
dev_err(&dev->udev->dev, "unexpected tiny rx frame\n");
return 0;
}
//. struct dm96xx_priv* priv= dev->driver_priv;
// if (skb->data[0]!=0x01)
// priv->flag_fail_count++;
status = skb->data[1];
len = (skb->data[2] | (skb->data[3] << 8)) - 4;
if (unlikely(status & 0xbf)) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
if (status & 0x01) dev->net->stats.rx_fifo_errors++;
if (status & 0x02) dev->net->stats.rx_crc_errors++;
if (status & 0x04) dev->net->stats.rx_frame_errors++;
if (status & 0x20) dev->net->stats.rx_missed_errors++;
if (status & 0x90) dev->net->stats.rx_length_errors++;
#else
if (status & 0x01) dev->stats.rx_fifo_errors++;
if (status & 0x02) dev->stats.rx_crc_errors++;
if (status & 0x04) dev->stats.rx_frame_errors++;
if (status & 0x20) dev->stats.rx_missed_errors++;
if (status & 0x90) dev->stats.rx_length_errors++;
#endif
return 0;
}
skb_pull(skb, 4);
skb_trim(skb, len);
}
else { /* mode 9620 (original driver code) */
status = skb->data[0];
len = (skb->data[1] | (skb->data[2] << 8)) - 4;
if (unlikely(status & 0xbf)) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
if (status & 0x01) dev->net->stats.rx_fifo_errors++;
if (status & 0x02) dev->net->stats.rx_crc_errors++;
if (status & 0x04) dev->net->stats.rx_frame_errors++;
if (status & 0x20) dev->net->stats.rx_missed_errors++;
if (status & 0x90) dev->net->stats.rx_length_errors++;
#else
if (status & 0x01) dev->stats.rx_fifo_errors++;
if (status & 0x02) dev->stats.rx_crc_errors++;
if (status & 0x04) dev->stats.rx_frame_errors++;
if (status & 0x20) dev->stats.rx_missed_errors++;
if (status & 0x90) dev->stats.rx_length_errors++;
#endif
return 0;
}
skb_pull(skb, 3);
skb_trim(skb, len);
}
return 1;
} // 'priv'
static struct sk_buff *dm9620_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
gfp_t flags)
{
int len;
/* format:
b0: packet length low
b1: packet length high
b3..n: packet data
*/
len = skb->len;
if (skb_headroom(skb) < DM_TX_OVERHEAD) {
struct sk_buff *skb2;
skb2 = skb_copy_expand(skb, DM_TX_OVERHEAD, 0, flags);
dev_kfree_skb_any(skb);
skb = skb2;
if (!skb)
return NULL;
}
__skb_push(skb, DM_TX_OVERHEAD);
/* usbnet adds padding if length is a multiple of packet size
if so, adjust length value in header */
if ((skb->len % dev->maxpacket) == 0)
len++;
skb->data[0] = len;
skb->data[1] = len >> 8;
/* hank, recalcute checksum of TCP */
return skb;
} // 'kb'
static void dm9620_status(struct usbnet *dev, struct urb *urb)
{
int link;
u8 *buf;
/* format:
b0: net status
b1: tx status 1
b2: tx status 2
b3: rx status
b4: rx overflow
b5: rx count
b6: tx count
b7: gpr
*/
if (urb->actual_length < 8)
return;
buf = urb->transfer_buffer;
link = !!(buf[0] & 0x40);
if (netif_carrier_ok(dev->net) != link) {
if (link) {
netif_carrier_on(dev->net);
usbnet_defer_kevent (dev, EVENT_LINK_RESET);
}
else
netif_carrier_off(dev->net);
devdbg(dev, "Link Status is: %d", link);
}
}
static int dm9620_link_reset(struct usbnet *dev)
{
struct ethtool_cmd ecmd;
mii_check_media(&dev->mii, 1, 1);
mii_ethtool_gset(&dev->mii, &ecmd);
/* hank add*/
dm9620_mdio_write(dev->net, dev->mii.phy_id, PHY_SPEC_CFG, 0x800);
devdbg(dev, "link_reset() speed: %d duplex: %d",
ecmd.speed, ecmd.duplex);
return 0;
}
static const struct driver_info dm9620_info = {
.description = "Davicom DM9620 USB Ethernet",
.flags = FLAG_ETHER,
.bind = dm9620_bind,
.rx_fixup = dm9620_rx_fixup,
.tx_fixup = dm9620_tx_fixup,
.status = dm9620_status,
.link_reset = dm9620_link_reset,
.reset = dm9620_link_reset,
.unbind = dm9620_unbind,
};
static const struct usb_device_id products[] = {
{
USB_DEVICE(0x07aa, 0x9601), /* Corega FEther USB-TXC */
.driver_info = (unsigned long)&dm9620_info,
},
{
USB_DEVICE(0x0a46, 0x9601), /* Davicom USB-100 */
.driver_info = (unsigned long)&dm9620_info,
},
{
USB_DEVICE(0x0a46, 0x6688), /* ZT6688 USB NIC */
.driver_info = (unsigned long)&dm9620_info,
},
{
USB_DEVICE(0x0a46, 0x0268), /* ShanTou ST268 USB NIC */
.driver_info = (unsigned long)&dm9620_info,
},
{
USB_DEVICE(0x0a46, 0x8515), /* ADMtek ADM8515 USB NIC */
.driver_info = (unsigned long)&dm9620_info,
},
{
USB_DEVICE(0x0a47, 0x9601), /* Hirose USB-100 */
.driver_info = (unsigned long)&dm9620_info,
},
{
USB_DEVICE(0x0a46, 0x9620), /* Davicom 9620 */
.driver_info = (unsigned long)&dm9620_info,
},
{
USB_DEVICE(0x0a46, 0x9621), /* Davicom 9621 */
.driver_info = (unsigned long)&dm9620_info,
},
{
USB_DEVICE(0x0a46, 0x9622), /* Davicom 9622 */
.driver_info = (unsigned long)&dm9620_info,
},
{
USB_DEVICE(0x0fe6, 0x8101), /* Davicom 9601 USB to Fast Ethernet Adapter */
.driver_info = (unsigned long)&dm9620_info,
},
{}, // END
};
MODULE_DEVICE_TABLE(usb, products);
static struct usb_driver dm9620_driver = {
// .name = "dm9601",
.name = "dm9620",
.id_table = products,
.probe = usbnet_probe,
.disconnect = usbnet_disconnect,
.suspend = usbnet_suspend,
.resume = usbnet_resume,
};
static int __init dm9620_init(void)
{
return usb_register(&dm9620_driver);
}
static void __exit dm9620_exit(void)
{
usb_deregister(&dm9620_driver);
}
module_init(dm9620_init);
module_exit(dm9620_exit);
MODULE_AUTHOR("Peter Korsgaard <jacmet@sunsite.dk>");
MODULE_DESCRIPTION("Davicom DM9620 USB 2.0 ethernet devices");
MODULE_LICENSE("GPL");
Makefile
##================================================================
## Davicom Semiconductor Inc. For DM9620 V0.00
## --------------------------------------------------------
## Description:
## Compile driver dm9620.c to dm9620.ko
##
## Modification List:
## 09/05/2000 Fixed SMPFALGS wrong on smp & smp_mod
## 08/02/2000 Changed some description string & include file path
## 07/25/2000 Append smp_mod and changed some descriptions
## 01/25/2000 by Sten Wang
## 03/24/2009 Modifiy for Linux kernel 2.6.28
##================================================================
# Comment/uncomment the following line to disable/enable debugging
# DEBUG = y
# Add your debugging flag (or not) to CFLAGS
#ifeq ($(DEBUG),y)
# DEBFLAGS = -O -g # "-O" is needed to expand inlines
#else
# DEBFLAGS = -O2
#endif
#CFLAGS += $(DEBFLAGS) -I$(LDDINCDIR)
#ifneq ($(KERNELRELEASE),)
# call from kernel build system
obj-m := dm9620.o
#else
MODULE_INSTALDIR ?= /lib/modules/$(shell uname -r)/kernel/drivers/net/usb
KERNELDIR ?= /lib/modules/$(shell uname -r)/build
PWD := $(shell pwd)
default:
$(MAKE) -C $(KERNELDIR) M=$(PWD)
#endif
clean:
rm -rf *.o *~ core .depend .*.cmd *.ko *.mod.c .tmp_versions
install:
#modprobe -r dm9620
install -c -m 0644 dm9620.ko $(MODULE_INSTALDIR)
depmod -a -e
#depend .depend dep:
# $(CC) $(CFLAGS) -M *.c > .depend
#ifeq (.depend,$(wildcard .depend))
#include .depend
#endif
For Kernel 4.1.4 patch
--- /home/happy/Downloads/Linux_DM962x_2.6/Linux_DM962x_2.6/dm9620.c 2010-07-09 15:08:48.000000000 +0800
+++ /home/test/dm9620.c 2015-08-17 12:47:40.293327000 +0800
@@ -88,7 +88,7 @@
static int dm_read(struct usbnet *dev, u8 reg, u16 length, void *data)
{
- devdbg(dev, "dm_read() reg=0x%02x length=%d", reg, length);
+ printk (KERN_ERR "dm_read() reg=0x%02x length=%d", reg, length);
return usb_control_msg(dev->udev,
usb_rcvctrlpipe(dev->udev, 0),
DM_READ_REGS,
@@ -103,7 +103,7 @@
static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data)
{
- devdbg(dev, "dm_write() reg=0x%02x, length=%d", reg, length);
+ printk (KERN_ERR "dm_write() reg=0x%02x, length=%d", reg, length);
return usb_control_msg(dev->udev,
usb_sndctrlpipe(dev->udev, 0),
DM_WRITE_REGS,
@@ -113,7 +113,7 @@
static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value)
{
- devdbg(dev, "dm_write_reg() reg=0x%02x, value=0x%02x", reg, value);
+ printk (KERN_ERR "dm_write_reg() reg=0x%02x, value=0x%02x", reg, value);
return usb_control_msg(dev->udev,
usb_sndctrlpipe(dev->udev, 0),
DM_WRITE_REG,
@@ -142,13 +142,13 @@
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb) {
- deverr(dev, "Error allocating URB in dm_write_async_helper!");
+ printk (KERN_ERR "Error allocating URB in dm_write_async_helper!");
return;
}
req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
if (!req) {
- deverr(dev, "Failed to allocate memory for control request");
+ printk (KERN_ERR "Failed to allocate memory for control request");
usb_free_urb(urb);
return;
}
@@ -166,7 +166,7 @@
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status < 0) {
- deverr(dev, "Error submitting the control message: status=%d",
+ printk (KERN_ERR "Error submitting the control message: status=%d",
status);
kfree(req);
usb_free_urb(urb);
@@ -175,14 +175,14 @@
static void dm_write_async(struct usbnet *dev, u8 reg, u16 length, void *data)
{
- devdbg(dev, "dm_write_async() reg=0x%02x length=%d", reg, length);
+ printk (KERN_ERR "dm_write_async() reg=0x%02x length=%d", reg, length);
dm_write_async_helper(dev, reg, 0, length, data);
}
static void dm_write_reg_async(struct usbnet *dev, u8 reg, u8 value)
{
- devdbg(dev, "dm_write_reg_async() reg=0x%02x value=0x%02x",
+ printk (KERN_ERR "dm_write_reg_async() reg=0x%02x value=0x%02x",
reg, value);
dm_write_async_helper(dev, reg, value, 0, NULL);
@@ -211,7 +211,7 @@
}
if (i == DM_TIMEOUT) {
- deverr(dev, "%s read timed out!", phy ? "phy" : "eeprom");
+ printk (KERN_ERR "%s read timed out!", phy ? "phy" : "eeprom");
ret = -EIO;
goto out;
}
@@ -219,7 +219,7 @@
dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
ret = dm_read(dev, DM_SHARED_DATA, 2, value);
- devdbg(dev, "read shared %d 0x%02x returned 0x%04x, %d",
+ printk (KERN_ERR "read shared %d 0x%02x returned 0x%04x, %d",
phy, reg, *value, ret);
out:
@@ -257,7 +257,7 @@
}
if (i == DM_TIMEOUT) {
- deverr(dev, "%s write timed out!", phy ? "phy" : "eeprom");
+ printk (KERN_ERR "%s write timed out!", phy ? "phy" : "eeprom");
ret = -EIO;
goto out;
}
@@ -320,7 +320,7 @@
}
if (i == DM_TIMEOUT) {
- deverr(dev, "%s write timed out!", phy ? "phy" : "eeprom");
+ printk (KERN_ERR "%s write timed out!", phy ? "phy" : "eeprom");
ret = -EIO;
goto out;
}
@@ -341,9 +341,9 @@
{
struct usbnet *dev = netdev_priv(net);
- devwarn(dev, "EEPROM: magic value, magic = 0x%x offset =0x%x data = 0x%x ",eeprom->magic, eeprom->offset,*data);
+ printk (KERN_ERR "EEPROM: magic value, magic = 0x%x offset =0x%x data = 0x%x ",eeprom->magic, eeprom->offset,*data);
if (eeprom->magic != MD96XX_EEPROM_MAGIC) {
- devwarn(dev, "EEPROM: magic value mismatch, magic = 0x%x",
+ printk (KERN_ERR "EEPROM: magic value mismatch, magic = 0x%x",
eeprom->magic);
return -EINVAL;
}
@@ -385,13 +385,13 @@
__le16 res;
if (phy_id) {
- devdbg(dev, "Only internal phy supported");
+ printk (KERN_ERR "Only internal phy supported");
return 0;
}
dm_read_shared_word(dev, 1, loc, &res);
- devdbg(dev,
+ printk (KERN_ERR
"dm9620_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x",
phy_id, loc, le16_to_cpu(res));
@@ -406,11 +406,11 @@
int mdio_val;
if (phy_id) {
- devdbg(dev, "Only internal phy supported");
+ printk (KERN_ERR "Only internal phy supported");
return;
}
- devdbg(dev,"dm9620_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x",
+ printk (KERN_ERR"dm9620_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x",
phy_id, loc, val);
dm_write_shared_word(dev, 1, loc, res);
@@ -514,15 +514,14 @@
if (net->flags & IFF_PROMISC) {
rx_ctl |= 0x02;
- } else if (net->flags & IFF_ALLMULTI || net->mc_count > DM_MAX_MCAST) {
+ } else if (net->flags & IFF_ALLMULTI || netdev_mc_count(net) > DM_MAX_MCAST) {
rx_ctl |= 0x04;
- } else if (net->mc_count) {
- struct dev_mc_list *mc_list = net->mc_list;
- int i;
-
- for (i = 0; i < net->mc_count; i++, mc_list = mc_list->next) {
- u32 crc = ether_crc(ETH_ALEN, mc_list->dmi_addr) >> 26;
- hashes[crc >> 3] |= 1 << (crc & 0x7);
+ } else if (netdev_mc_count(net)) {
+ struct netdev_hw_addr *hw_addr;
+
+ netdev_for_each_mc_addr(hw_addr, net) {
+ u32 crc = ether_crc(ETH_ALEN, hw_addr->addr) >> 26;
+ hashes[crc >> 3] |= 1 << (crc & 0x7);
}
}
@@ -573,7 +572,7 @@
.ndo_change_mtu = usbnet_change_mtu,
.ndo_validate_addr = eth_validate_addr,
.ndo_do_ioctl = dm9620_ioctl,
- .ndo_set_multicast_list = dm9620_set_multicast,
+ .ndo_set_rx_mode = dm9620_set_multicast,
.ndo_set_mac_address = dm9620_set_mac_address,
};
#endif
@@ -633,7 +632,7 @@
/* read SMI mode register */
priv = dev->driver_priv = kmalloc(sizeof(struct dm96xx_priv), GFP_ATOMIC);
if (!priv) {
- deverr(dev, "Failed to allocate memory for dm96xx_priv");
+ printk (KERN_ERR "Failed to allocate memory for dm96xx_priv");
ret = -ENOMEM;
goto out;
}
@@ -869,7 +868,7 @@
}
else
netif_carrier_off(dev->net);
- devdbg(dev, "Link Status is: %d", link);
+ printk (KERN_ERR "Link Status is: %d", link);
}
}
@@ -880,7 +879,7 @@
mii_ethtool_gset(&dev->mii, &ecmd);
/* hank add*/
dm9620_mdio_write(dev->net, dev->mii.phy_id, PHY_SPEC_CFG, 0x800);
- devdbg(dev, "link_reset() speed: %d duplex: %d",
+ printk (KERN_ERR "link_reset() speed: %d duplex: %d",
ecmd.speed, ecmd.duplex);
return 0;
Install kernel module
sudo insmod dm9620.koReference:
- NET101 driver download page
- linux-headers 4.1.4-1
- [SOLVED] Compiling broadcom driver
- QF9700 Linux 3.0.8驱动补丁
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