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ax88179_178a.c
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet Devices
*
* Copyright (C) 2011-2013 ASIX
*/
#include <linux/module.h>
#include <linux/etherdevice.h>
#include <linux/mii.h>
#include <linux/usb.h>
#include <linux/crc32.h>
#include <linux/usb/usbnet.h>
#include <uapi/linux/mdio.h>
#include <linux/mdio.h>
#define AX88179_PHY_ID 0x03
#define AX_EEPROM_LEN 0x100
#define AX88179_EEPROM_MAGIC 0x17900b95
#define AX_MCAST_FLTSIZE 8
#define AX_MAX_MCAST 64
#define AX_INT_PPLS_LINK ((u32)BIT(16))
#define AX_RXHDR_L4_TYPE_MASK 0x1c
#define AX_RXHDR_L4_TYPE_UDP 4
#define AX_RXHDR_L4_TYPE_TCP 16
#define AX_RXHDR_L3CSUM_ERR 2
#define AX_RXHDR_L4CSUM_ERR 1
#define AX_RXHDR_CRC_ERR ((u32)BIT(29))
#define AX_RXHDR_DROP_ERR ((u32)BIT(31))
#define AX_ACCESS_MAC 0x01
#define AX_ACCESS_PHY 0x02
#define AX_ACCESS_EEPROM 0x04
#define AX_ACCESS_EFUS 0x05
#define AX_PAUSE_WATERLVL_HIGH 0x54
#define AX_PAUSE_WATERLVL_LOW 0x55
#define PHYSICAL_LINK_STATUS 0x02
#define AX_USB_SS 0x04
#define AX_USB_HS 0x02
#define GENERAL_STATUS 0x03
/* Check AX88179 version. UA1:Bit2 = 0, UA2:Bit2 = 1 */
#define AX_SECLD 0x04
#define AX_SROM_ADDR 0x07
#define AX_SROM_CMD 0x0a
#define EEP_RD 0x04
#define EEP_BUSY 0x10
#define AX_SROM_DATA_LOW 0x08
#define AX_SROM_DATA_HIGH 0x09
#define AX_RX_CTL 0x0b
#define AX_RX_CTL_DROPCRCERR 0x0100
#define AX_RX_CTL_IPE 0x0200
#define AX_RX_CTL_START 0x0080
#define AX_RX_CTL_AP 0x0020
#define AX_RX_CTL_AM 0x0010
#define AX_RX_CTL_AB 0x0008
#define AX_RX_CTL_AMALL 0x0002
#define AX_RX_CTL_PRO 0x0001
#define AX_RX_CTL_STOP 0x0000
#define AX_NODE_ID 0x10
#define AX_MULFLTARY 0x16
#define AX_MEDIUM_STATUS_MODE 0x22
#define AX_MEDIUM_GIGAMODE 0x01
#define AX_MEDIUM_FULL_DUPLEX 0x02
#define AX_MEDIUM_EN_125MHZ 0x08
#define AX_MEDIUM_RXFLOW_CTRLEN 0x10
#define AX_MEDIUM_TXFLOW_CTRLEN 0x20
#define AX_MEDIUM_RECEIVE_EN 0x100
#define AX_MEDIUM_PS 0x200
#define AX_MEDIUM_JUMBO_EN 0x8040
#define AX_MONITOR_MOD 0x24
#define AX_MONITOR_MODE_RWLC 0x02
#define AX_MONITOR_MODE_RWMP 0x04
#define AX_MONITOR_MODE_PMEPOL 0x20
#define AX_MONITOR_MODE_PMETYPE 0x40
#define AX_GPIO_CTRL 0x25
#define AX_GPIO_CTRL_GPIO3EN 0x80
#define AX_GPIO_CTRL_GPIO2EN 0x40
#define AX_GPIO_CTRL_GPIO1EN 0x20
#define AX_PHYPWR_RSTCTL 0x26
#define AX_PHYPWR_RSTCTL_BZ 0x0010
#define AX_PHYPWR_RSTCTL_IPRL 0x0020
#define AX_PHYPWR_RSTCTL_AT 0x1000
#define AX_RX_BULKIN_QCTRL 0x2e
#define AX_CLK_SELECT 0x33
#define AX_CLK_SELECT_BCS 0x01
#define AX_CLK_SELECT_ACS 0x02
#define AX_CLK_SELECT_ULR 0x08
#define AX_RXCOE_CTL 0x34
#define AX_RXCOE_IP 0x01
#define AX_RXCOE_TCP 0x02
#define AX_RXCOE_UDP 0x04
#define AX_RXCOE_TCPV6 0x20
#define AX_RXCOE_UDPV6 0x40
#define AX_TXCOE_CTL 0x35
#define AX_TXCOE_IP 0x01
#define AX_TXCOE_TCP 0x02
#define AX_TXCOE_UDP 0x04
#define AX_TXCOE_TCPV6 0x20
#define AX_TXCOE_UDPV6 0x40
#define AX_LEDCTRL 0x73
#define GMII_PHY_PHYSR 0x11
#define GMII_PHY_PHYSR_SMASK 0xc000
#define GMII_PHY_PHYSR_GIGA 0x8000
#define GMII_PHY_PHYSR_100 0x4000
#define GMII_PHY_PHYSR_FULL 0x2000
#define GMII_PHY_PHYSR_LINK 0x400
#define GMII_LED_ACT 0x1a
#define GMII_LED_ACTIVE_MASK 0xff8f
#define GMII_LED0_ACTIVE BIT(4)
#define GMII_LED1_ACTIVE BIT(5)
#define GMII_LED2_ACTIVE BIT(6)
#define GMII_LED_LINK 0x1c
#define GMII_LED_LINK_MASK 0xf888
#define GMII_LED0_LINK_10 BIT(0)
#define GMII_LED0_LINK_100 BIT(1)
#define GMII_LED0_LINK_1000 BIT(2)
#define GMII_LED1_LINK_10 BIT(4)
#define GMII_LED1_LINK_100 BIT(5)
#define GMII_LED1_LINK_1000 BIT(6)
#define GMII_LED2_LINK_10 BIT(8)
#define GMII_LED2_LINK_100 BIT(9)
#define GMII_LED2_LINK_1000 BIT(10)
#define LED0_ACTIVE BIT(0)
#define LED0_LINK_10 BIT(1)
#define LED0_LINK_100 BIT(2)
#define LED0_LINK_1000 BIT(3)
#define LED0_FD BIT(4)
#define LED0_USB3_MASK 0x001f
#define LED1_ACTIVE BIT(5)
#define LED1_LINK_10 BIT(6)
#define LED1_LINK_100 BIT(7)
#define LED1_LINK_1000 BIT(8)
#define LED1_FD BIT(9)
#define LED1_USB3_MASK 0x03e0
#define LED2_ACTIVE BIT(10)
#define LED2_LINK_1000 BIT(13)
#define LED2_LINK_100 BIT(12)
#define LED2_LINK_10 BIT(11)
#define LED2_FD BIT(14)
#define LED_VALID BIT(15)
#define LED2_USB3_MASK 0x7c00
#define GMII_PHYPAGE 0x1e
#define GMII_PHY_PAGE_SELECT 0x1f
#define GMII_PHY_PGSEL_EXT 0x0007
#define GMII_PHY_PGSEL_PAGE0 0x0000
#define GMII_PHY_PGSEL_PAGE3 0x0003
#define GMII_PHY_PGSEL_PAGE5 0x0005
struct ax88179_data {
u8 eee_enabled;
u8 eee_active;
u16 rxctl;
u16 reserved;
};
struct ax88179_int_data {
__le32 intdata1;
__le32 intdata2;
};
static const struct {
unsigned char ctrl, timer_l, timer_h, size, ifg;
} AX88179_BULKIN_SIZE[] = {
{7, 0x4f, 0, 0x12, 0xff},
{7, 0x20, 3, 0x16, 0xff},
{7, 0xae, 7, 0x18, 0xff},
{7, 0xcc, 0x4c, 0x18, 8},
};
static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
u16 size, void *data, int in_pm)
{
int ret;
int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
BUG_ON(!dev);
if (!in_pm)
fn = usbnet_read_cmd;
else
fn = usbnet_read_cmd_nopm;
ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
value, index, data, size);
if (unlikely(ret < 0))
netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
index, ret);
return ret;
}
static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
u16 size, void *data, int in_pm)
{
int ret;
int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
BUG_ON(!dev);
if (!in_pm)
fn = usbnet_write_cmd;
else
fn = usbnet_write_cmd_nopm;
ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
value, index, data, size);
if (unlikely(ret < 0))
netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
index, ret);
return ret;
}
static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
u16 index, u16 size, void *data)
{
u16 buf;
if (2 == size) {
buf = *((u16 *)data);
cpu_to_le16s(&buf);
usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, value, index, &buf,
size);
} else {
usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, value, index, data,
size);
}
}
static int ax88179_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
u16 index, u16 size, void *data)
{
int ret;
if (2 == size) {
u16 buf;
ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
le16_to_cpus(&buf);
*((u16 *)data) = buf;
} else if (4 == size) {
u32 buf;
ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
le32_to_cpus(&buf);
*((u32 *)data) = buf;
} else {
ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 1);
}
return ret;
}
static int ax88179_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
u16 index, u16 size, void *data)
{
int ret;
if (2 == size) {
u16 buf;
buf = *((u16 *)data);
cpu_to_le16s(&buf);
ret = __ax88179_write_cmd(dev, cmd, value, index,
size, &buf, 1);
} else {
ret = __ax88179_write_cmd(dev, cmd, value, index,
size, data, 1);
}
return ret;
}
static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
u16 size, void *data)
{
int ret;
if (2 == size) {
u16 buf;
ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
le16_to_cpus(&buf);
*((u16 *)data) = buf;
} else if (4 == size) {
u32 buf;
ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
le32_to_cpus(&buf);
*((u32 *)data) = buf;
} else {
ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 0);
}
return ret;
}
static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
u16 size, void *data)
{
int ret;
if (2 == size) {
u16 buf;
buf = *((u16 *)data);
cpu_to_le16s(&buf);
ret = __ax88179_write_cmd(dev, cmd, value, index,
size, &buf, 0);
} else {
ret = __ax88179_write_cmd(dev, cmd, value, index,
size, data, 0);
}
return ret;
}
static void ax88179_status(struct usbnet *dev, struct urb *urb)
{
struct ax88179_int_data *event;
u32 link;
if (urb->actual_length < 8)
return;
event = urb->transfer_buffer;
le32_to_cpus((void *)&event->intdata1);
link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
if (netif_carrier_ok(dev->net) != link) {
usbnet_link_change(dev, link, 1);
netdev_info(dev->net, "ax88179 - Link status is: %d\n", link);
}
}
static int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
{
struct usbnet *dev = netdev_priv(netdev);
u16 res;
ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
return res;
}
static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,
int val)
{
struct usbnet *dev = netdev_priv(netdev);
u16 res = (u16) val;
ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
}
static inline int ax88179_phy_mmd_indirect(struct usbnet *dev, u16 prtad,
u16 devad)
{
u16 tmp16;
int ret;
tmp16 = devad;
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_MMD_CTRL, 2, &tmp16);
tmp16 = prtad;
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_MMD_DATA, 2, &tmp16);
tmp16 = devad | MII_MMD_CTRL_NOINCR;
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_MMD_CTRL, 2, &tmp16);
return ret;
}
static int
ax88179_phy_read_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad)
{
int ret;
u16 tmp16;
ax88179_phy_mmd_indirect(dev, prtad, devad);
ret = ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_MMD_DATA, 2, &tmp16);
if (ret < 0)
return ret;
return tmp16;
}
static int
ax88179_phy_write_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad,
u16 data)
{
int ret;
ax88179_phy_mmd_indirect(dev, prtad, devad);
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_MMD_DATA, 2, &data);
if (ret < 0)
return ret;
return 0;
}
static int ax88179_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usbnet *dev = usb_get_intfdata(intf);
u16 tmp16;
u8 tmp8;
usbnet_suspend(intf, message);
/* Disable RX path */
ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
2, 2, &tmp16);
tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
2, 2, &tmp16);
/* Force bulk-in zero length */
ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
2, 2, &tmp16);
tmp16 |= AX_PHYPWR_RSTCTL_BZ | AX_PHYPWR_RSTCTL_IPRL;
ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
2, 2, &tmp16);
/* change clock */
tmp8 = 0;
ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
/* Configure RX control register => stop operation */
tmp16 = AX_RX_CTL_STOP;
ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
return 0;
}
/* This function is used to enable the autodetach function. */
/* This function is determined by offset 0x43 of EEPROM */
static int ax88179_auto_detach(struct usbnet *dev, int in_pm)
{
u16 tmp16;
u8 tmp8;
int (*fnr)(struct usbnet *, u8, u16, u16, u16, void *);
int (*fnw)(struct usbnet *, u8, u16, u16, u16, void *);
if (!in_pm) {
fnr = ax88179_read_cmd;
fnw = ax88179_write_cmd;
} else {
fnr = ax88179_read_cmd_nopm;
fnw = ax88179_write_cmd_nopm;
}
if (fnr(dev, AX_ACCESS_EEPROM, 0x43, 1, 2, &tmp16) < 0)
return 0;
if ((tmp16 == 0xFFFF) || (!(tmp16 & 0x0100)))
return 0;
/* Enable Auto Detach bit */
tmp8 = 0;
fnr(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
tmp8 |= AX_CLK_SELECT_ULR;
fnw(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
fnr(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
tmp16 |= AX_PHYPWR_RSTCTL_AT;
fnw(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
return 0;
}
static int ax88179_resume(struct usb_interface *intf)
{
struct usbnet *dev = usb_get_intfdata(intf);
u16 tmp16;
u8 tmp8;
usbnet_link_change(dev, 0, 0);
/* Power up ethernet PHY */
tmp16 = 0;
ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
2, 2, &tmp16);
udelay(1000);
tmp16 = AX_PHYPWR_RSTCTL_IPRL;
ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
2, 2, &tmp16);
msleep(200);
/* Ethernet PHY Auto Detach*/
ax88179_auto_detach(dev, 1);
/* Enable clock */
ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
tmp8 |= AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
msleep(100);
/* Configure RX control register => start operation */
tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
return usbnet_resume(intf);
}
static void
ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
{
struct usbnet *dev = netdev_priv(net);
u8 opt;
if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
1, 1, &opt) < 0) {
wolinfo->supported = 0;
wolinfo->wolopts = 0;
return;
}
wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
wolinfo->wolopts = 0;
if (opt & AX_MONITOR_MODE_RWLC)
wolinfo->wolopts |= WAKE_PHY;
if (opt & AX_MONITOR_MODE_RWMP)
wolinfo->wolopts |= WAKE_MAGIC;
}
static int
ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
{
struct usbnet *dev = netdev_priv(net);
u8 opt = 0;
if (wolinfo->wolopts & ~(WAKE_PHY | WAKE_MAGIC))
return -EINVAL;
if (wolinfo->wolopts & WAKE_PHY)
opt |= AX_MONITOR_MODE_RWLC;
if (wolinfo->wolopts & WAKE_MAGIC)
opt |= AX_MONITOR_MODE_RWMP;
if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
1, 1, &opt) < 0)
return -EINVAL;
return 0;
}
static int ax88179_get_eeprom_len(struct net_device *net)
{
return AX_EEPROM_LEN;
}
static int
ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
u8 *data)
{
struct usbnet *dev = netdev_priv(net);
u16 *eeprom_buff;
int first_word, last_word;
int i, ret;
if (eeprom->len == 0)
return -EINVAL;
eeprom->magic = AX88179_EEPROM_MAGIC;
first_word = eeprom->offset >> 1;
last_word = (eeprom->offset + eeprom->len - 1) >> 1;
eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
GFP_KERNEL);
if (!eeprom_buff)
return -ENOMEM;
/* ax88179/178A returns 2 bytes from eeprom on read */
for (i = first_word; i <= last_word; i++) {
ret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
&eeprom_buff[i - first_word],
0);
if (ret < 0) {
kfree(eeprom_buff);
return -EIO;
}
}
memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
kfree(eeprom_buff);
return 0;
}
static int ax88179_get_link_ksettings(struct net_device *net,
struct ethtool_link_ksettings *cmd)
{
struct usbnet *dev = netdev_priv(net);
mii_ethtool_get_link_ksettings(&dev->mii, cmd);
return 0;
}
static int ax88179_set_link_ksettings(struct net_device *net,
const struct ethtool_link_ksettings *cmd)
{
struct usbnet *dev = netdev_priv(net);
return mii_ethtool_set_link_ksettings(&dev->mii, cmd);
}
static int
ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_eee *data)
{
int val;
/* Get Supported EEE */
val = ax88179_phy_read_mmd_indirect(dev, MDIO_PCS_EEE_ABLE,
MDIO_MMD_PCS);
if (val < 0)
return val;
data->supported = mmd_eee_cap_to_ethtool_sup_t(val);
/* Get advertisement EEE */
val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_ADV,
MDIO_MMD_AN);
if (val < 0)
return val;
data->advertised = mmd_eee_adv_to_ethtool_adv_t(val);
/* Get LP advertisement EEE */
val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_LPABLE,
MDIO_MMD_AN);
if (val < 0)
return val;
data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val);
return 0;
}
static int
ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_eee *data)
{
u16 tmp16 = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
return ax88179_phy_write_mmd_indirect(dev, MDIO_AN_EEE_ADV,
MDIO_MMD_AN, tmp16);
}
static int ax88179_chk_eee(struct usbnet *dev)
{
struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
struct ax88179_data *priv = (struct ax88179_data *)dev->data;
mii_ethtool_gset(&dev->mii, &ecmd);
if (ecmd.duplex & DUPLEX_FULL) {
int eee_lp, eee_cap, eee_adv;
u32 lp, cap, adv, supported = 0;
eee_cap = ax88179_phy_read_mmd_indirect(dev,
MDIO_PCS_EEE_ABLE,
MDIO_MMD_PCS);
if (eee_cap < 0) {
priv->eee_active = 0;
return false;
}
cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap);
if (!cap) {
priv->eee_active = 0;
return false;
}
eee_lp = ax88179_phy_read_mmd_indirect(dev,
MDIO_AN_EEE_LPABLE,
MDIO_MMD_AN);
if (eee_lp < 0) {
priv->eee_active = 0;
return false;
}
eee_adv = ax88179_phy_read_mmd_indirect(dev,
MDIO_AN_EEE_ADV,
MDIO_MMD_AN);
if (eee_adv < 0) {
priv->eee_active = 0;
return false;
}
adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
supported = (ecmd.speed == SPEED_1000) ?
SUPPORTED_1000baseT_Full :
SUPPORTED_100baseT_Full;
if (!(lp & adv & supported)) {
priv->eee_active = 0;
return false;
}
priv->eee_active = 1;
return true;
}
priv->eee_active = 0;
return false;
}
static void ax88179_disable_eee(struct usbnet *dev)
{
u16 tmp16;
tmp16 = GMII_PHY_PGSEL_PAGE3;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
GMII_PHY_PAGE_SELECT, 2, &tmp16);
tmp16 = 0x3246;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_PHYADDR, 2, &tmp16);
tmp16 = GMII_PHY_PGSEL_PAGE0;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
GMII_PHY_PAGE_SELECT, 2, &tmp16);
}
static void ax88179_enable_eee(struct usbnet *dev)
{
u16 tmp16;
tmp16 = GMII_PHY_PGSEL_PAGE3;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
GMII_PHY_PAGE_SELECT, 2, &tmp16);
tmp16 = 0x3247;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_PHYADDR, 2, &tmp16);
tmp16 = GMII_PHY_PGSEL_PAGE5;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
GMII_PHY_PAGE_SELECT, 2, &tmp16);
tmp16 = 0x0680;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_BMSR, 2, &tmp16);
tmp16 = GMII_PHY_PGSEL_PAGE0;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
GMII_PHY_PAGE_SELECT, 2, &tmp16);
}
static int ax88179_get_eee(struct net_device *net, struct ethtool_eee *edata)
{
struct usbnet *dev = netdev_priv(net);
struct ax88179_data *priv = (struct ax88179_data *)dev->data;
edata->eee_enabled = priv->eee_enabled;
edata->eee_active = priv->eee_active;
return ax88179_ethtool_get_eee(dev, edata);
}
static int ax88179_set_eee(struct net_device *net, struct ethtool_eee *edata)
{
struct usbnet *dev = netdev_priv(net);
struct ax88179_data *priv = (struct ax88179_data *)dev->data;
int ret = -EOPNOTSUPP;
priv->eee_enabled = edata->eee_enabled;
if (!priv->eee_enabled) {
ax88179_disable_eee(dev);
} else {
priv->eee_enabled = ax88179_chk_eee(dev);
if (!priv->eee_enabled)
return -EOPNOTSUPP;
ax88179_enable_eee(dev);
}
ret = ax88179_ethtool_set_eee(dev, edata);
if (ret)
return ret;
mii_nway_restart(&dev->mii);
usbnet_link_change(dev, 0, 0);
return ret;
}
static int ax88179_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);
}
static const struct ethtool_ops ax88179_ethtool_ops = {
.get_link = ethtool_op_get_link,
.get_msglevel = usbnet_get_msglevel,
.set_msglevel = usbnet_set_msglevel,
.get_wol = ax88179_get_wol,
.set_wol = ax88179_set_wol,
.get_eeprom_len = ax88179_get_eeprom_len,
.get_eeprom = ax88179_get_eeprom,
.get_eee = ax88179_get_eee,
.set_eee = ax88179_set_eee,
.nway_reset = usbnet_nway_reset,
.get_link_ksettings = ax88179_get_link_ksettings,
.set_link_ksettings = ax88179_set_link_ksettings,
};
static void ax88179_set_multicast(struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
struct ax88179_data *data = (struct ax88179_data *)dev->data;
u8 *m_filter = ((u8 *)dev->data) + 12;
data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);
if (net->flags & IFF_PROMISC) {
data->rxctl |= AX_RX_CTL_PRO;
} else if (net->flags & IFF_ALLMULTI ||
netdev_mc_count(net) > AX_MAX_MCAST) {
data->rxctl |= AX_RX_CTL_AMALL;
} else if (netdev_mc_empty(net)) {
/* just broadcast and directed */
} else {
/* We use the 20 byte dev->data for our 8 byte filter buffer
* to avoid allocating memory that is tricky to free later
*/
u32 crc_bits;
struct netdev_hw_addr *ha;
memset(m_filter, 0, AX_MCAST_FLTSIZE);
netdev_for_each_mc_addr(ha, net) {
crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
*(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
}
ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
m_filter);
data->rxctl |= AX_RX_CTL_AM;
}
ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
2, 2, &data->rxctl);
}
static int
ax88179_set_features(struct net_device *net, netdev_features_t features)
{
u8 tmp;
struct usbnet *dev = netdev_priv(net);
netdev_features_t changed = net->features ^ features;
if (changed & NETIF_F_IP_CSUM) {
ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
}
if (changed & NETIF_F_IPV6_CSUM) {
ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
}
if (changed & NETIF_F_RXCSUM) {
ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
tmp ^= AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
}
return 0;
}
static int ax88179_change_mtu(struct net_device *net, int new_mtu)
{
struct usbnet *dev = netdev_priv(net);
u16 tmp16;
net->mtu = new_mtu;
dev->hard_mtu = net->mtu + net->hard_header_len;
if (net->mtu > 1500) {
ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
2, 2, &tmp16);
tmp16 |= AX_MEDIUM_JUMBO_EN;
ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
2, 2, &tmp16);
} else {
ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
2, 2, &tmp16);
tmp16 &= ~AX_MEDIUM_JUMBO_EN;
ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
2, 2, &tmp16);
}
/* max qlen depend on hard_mtu and rx_urb_size */
usbnet_update_max_qlen(dev);
return 0;
}
static int ax88179_set_mac_addr(struct net_device *net, void *p)
{
struct usbnet *dev = netdev_priv(net);
struct sockaddr *addr = p;
int ret;
if (netif_running(net))
return -EBUSY;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);
/* Set the MAC address */
ret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
ETH_ALEN, net->dev_addr);
if (ret < 0)
return ret;
return 0;
}
static const struct net_device_ops ax88179_netdev_ops = {
.ndo_open = usbnet_open,
.ndo_stop = usbnet_stop,
.ndo_start_xmit = usbnet_start_xmit,
.ndo_tx_timeout = usbnet_tx_timeout,
.ndo_get_stats64 = usbnet_get_stats64,
.ndo_change_mtu = ax88179_change_mtu,
.ndo_set_mac_address = ax88179_set_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_do_ioctl = ax88179_ioctl,
.ndo_set_rx_mode = ax88179_set_multicast,
.ndo_set_features = ax88179_set_features,
};
static int ax88179_check_eeprom(struct usbnet *dev)
{
u8 i, buf, eeprom[20];
u16 csum, delay = HZ / 10;
unsigned long jtimeout;
/* Read EEPROM content */
for (i = 0; i < 6; i++) {
buf = i;
if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
1, 1, &buf) < 0)
return -EINVAL;
buf = EEP_RD;
if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1, 1, &buf) < 0)
return -EINVAL;
jtimeout = jiffies + delay;
do {
ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1, 1, &buf);
if (time_after(jiffies, jtimeout))
return -EINVAL;
} while (buf & EEP_BUSY);
__ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
2, 2, &eeprom[i * 2], 0);
if ((i == 0) && (eeprom[0] == 0xFF))
return -EINVAL;
}
csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9];