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net: usb: aqc111: Add support for wake on LAN by MAGIC packet
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Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Dmitry Bezrukov authored and David S. Miller committed Nov 27, 2018
1 parent abbd8e7 commit e58ba45
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Showing 2 changed files with 192 additions and 0 deletions.
180 changes: 180 additions & 0 deletions drivers/net/usb/aqc111.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,17 @@ static int aqc111_read_cmd(struct usbnet *dev, u8 cmd, u16 value,
return ret;
}

static int aqc111_read16_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
u16 index, u16 *data)
{
int ret = 0;

ret = aqc111_read_cmd_nopm(dev, cmd, value, index, sizeof(*data), data);
le16_to_cpus(data);

return ret;
}

static int aqc111_read16_cmd(struct usbnet *dev, u8 cmd, u16 value,
u16 index, u16 *data)
{
Expand Down Expand Up @@ -199,6 +210,35 @@ static void aqc111_get_drvinfo(struct net_device *net,
info->regdump_len = 0x00;
}

static void aqc111_get_wol(struct net_device *net,
struct ethtool_wolinfo *wolinfo)
{
struct usbnet *dev = netdev_priv(net);
struct aqc111_data *aqc111_data = dev->driver_priv;

wolinfo->supported = WAKE_MAGIC;
wolinfo->wolopts = 0;

if (aqc111_data->wol_flags & AQ_WOL_FLAG_MP)
wolinfo->wolopts |= WAKE_MAGIC;
}

static int aqc111_set_wol(struct net_device *net,
struct ethtool_wolinfo *wolinfo)
{
struct usbnet *dev = netdev_priv(net);
struct aqc111_data *aqc111_data = dev->driver_priv;

if (wolinfo->wolopts & ~WAKE_MAGIC)
return -EINVAL;

aqc111_data->wol_flags = 0;
if (wolinfo->wolopts & WAKE_MAGIC)
aqc111_data->wol_flags |= AQ_WOL_FLAG_MP;

return 0;
}

static void aqc111_speed_to_link_mode(u32 speed,
struct ethtool_link_ksettings *elk)
{
Expand Down Expand Up @@ -369,6 +409,8 @@ static int aqc111_set_link_ksettings(struct net_device *net,

static const struct ethtool_ops aqc111_ethtool_ops = {
.get_drvinfo = aqc111_get_drvinfo,
.get_wol = aqc111_get_wol,
.set_wol = aqc111_set_wol,
.get_msglevel = usbnet_get_msglevel,
.set_msglevel = usbnet_set_msglevel,
.get_link = ethtool_op_get_link,
Expand Down Expand Up @@ -1207,6 +1249,142 @@ static const struct driver_info aqc111_info = {
.tx_fixup = aqc111_tx_fixup,
};

static int aqc111_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usbnet *dev = usb_get_intfdata(intf);
struct aqc111_data *aqc111_data = dev->driver_priv;
u16 temp_rx_ctrl = 0x00;
u16 reg16;
u8 reg8;

usbnet_suspend(intf, message);

aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, &reg16);
temp_rx_ctrl = reg16;
/* Stop RX operations*/
reg16 &= ~SFR_RX_CTL_START;
aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, &reg16);
/* Force bz */
aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL,
2, &reg16);
reg16 |= SFR_PHYPWR_RSTCTL_BZ;
aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL,
2, &reg16);

reg8 = SFR_BULK_OUT_EFF_EN;
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,
1, 1, &reg8);

temp_rx_ctrl &= ~(SFR_RX_CTL_START | SFR_RX_CTL_RF_WAK |
SFR_RX_CTL_AP | SFR_RX_CTL_AM);
aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL,
2, &temp_rx_ctrl);

reg8 = 0x00;
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,
1, 1, &reg8);

if (aqc111_data->wol_flags) {
struct aqc111_wol_cfg wol_cfg = { 0 };

aqc111_data->phy_cfg |= AQ_WOL;
ether_addr_copy(wol_cfg.hw_addr, dev->net->dev_addr);
wol_cfg.flags = aqc111_data->wol_flags;

temp_rx_ctrl |= (SFR_RX_CTL_AB | SFR_RX_CTL_START);
aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL,
2, &temp_rx_ctrl);
reg8 = 0x00;
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK,
1, 1, &reg8);
reg8 = SFR_BMRX_DMA_EN;
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL,
1, 1, &reg8);
reg8 = SFR_RX_PATH_READY;
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,
1, 1, &reg8);
reg8 = 0x07;
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL,
1, 1, &reg8);
reg8 = 0x00;
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC,
SFR_RX_BULKIN_QTIMR_LOW, 1, 1, &reg8);
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC,
SFR_RX_BULKIN_QTIMR_HIGH, 1, 1, &reg8);
reg8 = 0xFF;
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QSIZE,
1, 1, &reg8);
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QIFG,
1, 1, &reg8);

aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC,
SFR_MEDIUM_STATUS_MODE, 2, &reg16);
reg16 |= SFR_MEDIUM_RECEIVE_EN;
aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC,
SFR_MEDIUM_STATUS_MODE, 2, &reg16);

aqc111_write_cmd(dev, AQ_WOL_CFG, 0, 0,
WOL_CFG_SIZE, &wol_cfg);
aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0,
&aqc111_data->phy_cfg);
} else {
aqc111_data->phy_cfg |= AQ_LOW_POWER;
aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0,
&aqc111_data->phy_cfg);

/* Disable RX path */
aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC,
SFR_MEDIUM_STATUS_MODE, 2, &reg16);
reg16 &= ~SFR_MEDIUM_RECEIVE_EN;
aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC,
SFR_MEDIUM_STATUS_MODE, 2, &reg16);
}

return 0;
}

static int aqc111_resume(struct usb_interface *intf)
{
struct usbnet *dev = usb_get_intfdata(intf);
struct aqc111_data *aqc111_data = dev->driver_priv;
u16 reg16;
u8 reg8;

netif_carrier_off(dev->net);

/* Power up ethernet PHY */
aqc111_data->phy_cfg |= AQ_PHY_POWER_EN;
aqc111_data->phy_cfg &= ~AQ_LOW_POWER;
aqc111_data->phy_cfg &= ~AQ_WOL;

reg8 = 0xFF;
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK,
1, 1, &reg8);
/* Configure RX control register => start operation */
reg16 = aqc111_data->rxctl;
reg16 &= ~SFR_RX_CTL_START;
aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, &reg16);

reg16 |= SFR_RX_CTL_START;
aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, &reg16);

aqc111_set_phy_speed(dev, aqc111_data->autoneg,
aqc111_data->advertised_speed);

aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
2, &reg16);
reg16 |= SFR_MEDIUM_RECEIVE_EN;
aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
2, &reg16);
reg8 = SFR_RX_PATH_READY;
aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,
1, 1, &reg8);
reg8 = 0x0;
aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL, 1, 1, &reg8);

return usbnet_resume(intf);
}

#define AQC111_USB_ETH_DEV(vid, pid, table) \
USB_DEVICE_INTERFACE_CLASS((vid), (pid), USB_CLASS_VENDOR_SPEC), \
.driver_info = (unsigned long)&(table) \
Expand All @@ -1228,6 +1406,8 @@ static struct usb_driver aq_driver = {
.name = "aqc111",
.id_table = products,
.probe = usbnet_probe,
.suspend = aqc111_suspend,
.resume = aqc111_resume,
.disconnect = usbnet_disconnect,
};

Expand Down
12 changes: 12 additions & 0 deletions drivers/net/usb/aqc111.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@
#define AQ_ACCESS_MAC 0x01
#define AQ_FLASH_PARAMETERS 0x20
#define AQ_PHY_POWER 0x31
#define AQ_WOL_CFG 0x60
#define AQ_PHY_OPS 0x61

#define AQ_USB_PHY_SET_TIMEOUT 10000
Expand Down Expand Up @@ -145,8 +146,18 @@
#define AQ_DSH_RETRIES_SHIFT 0x18
#define AQ_DSH_RETRIES_MASK 0xF000000

#define AQ_WOL_FLAG_MP 0x2

/******************************************************************************/

struct aqc111_wol_cfg {
u8 hw_addr[6];
u8 flags;
u8 rsvd[283];
} __packed;

#define WOL_CFG_SIZE sizeof(struct aqc111_wol_cfg)

struct aqc111_data {
u16 rxctl;
u8 rx_checksum;
Expand All @@ -160,6 +171,7 @@ struct aqc111_data {
u8 rev;
} fw_ver;
u32 phy_cfg;
u8 wol_flags;
};

#define AQ_LS_MASK 0x8000
Expand Down

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