From e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc Mon Sep 17 00:00:00 2001 From: Dmitry Bezrukov Date: Mon, 26 Nov 2018 09:33:45 +0000 Subject: [PATCH] net: usb: aqc111: Add support for wake on LAN by MAGIC packet Signed-off-by: Dmitry Bezrukov Signed-off-by: Igor Russkikh Signed-off-by: David S. Miller --- drivers/net/usb/aqc111.c | 180 +++++++++++++++++++++++++++++++++++++++ drivers/net/usb/aqc111.h | 12 +++ 2 files changed, 192 insertions(+) diff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c index 650cea33f1a3..7c859b9417f1 100644 --- a/drivers/net/usb/aqc111.c +++ b/drivers/net/usb/aqc111.c @@ -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) { @@ -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) { @@ -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, @@ -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, ®16); + temp_rx_ctrl = reg16; + /* Stop RX operations*/ + reg16 &= ~SFR_RX_CTL_START; + aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); + /* Force bz */ + aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL, + 2, ®16); + reg16 |= SFR_PHYPWR_RSTCTL_BZ; + aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL, + 2, ®16); + + reg8 = SFR_BULK_OUT_EFF_EN; + aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL, + 1, 1, ®8); + + 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, ®8); + + 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, ®8); + reg8 = SFR_BMRX_DMA_EN; + aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL, + 1, 1, ®8); + reg8 = SFR_RX_PATH_READY; + aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH, + 1, 1, ®8); + reg8 = 0x07; + aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL, + 1, 1, ®8); + reg8 = 0x00; + aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, + SFR_RX_BULKIN_QTIMR_LOW, 1, 1, ®8); + aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, + SFR_RX_BULKIN_QTIMR_HIGH, 1, 1, ®8); + reg8 = 0xFF; + aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QSIZE, + 1, 1, ®8); + aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QIFG, + 1, 1, ®8); + + aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, + SFR_MEDIUM_STATUS_MODE, 2, ®16); + reg16 |= SFR_MEDIUM_RECEIVE_EN; + aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, + SFR_MEDIUM_STATUS_MODE, 2, ®16); + + 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, ®16); + reg16 &= ~SFR_MEDIUM_RECEIVE_EN; + aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, + SFR_MEDIUM_STATUS_MODE, 2, ®16); + } + + 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, ®8); + /* 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, ®16); + + reg16 |= SFR_RX_CTL_START; + aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); + + 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, ®16); + reg16 |= SFR_MEDIUM_RECEIVE_EN; + aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, + 2, ®16); + reg8 = SFR_RX_PATH_READY; + aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH, + 1, 1, ®8); + reg8 = 0x0; + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL, 1, 1, ®8); + + 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) \ @@ -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, }; diff --git a/drivers/net/usb/aqc111.h b/drivers/net/usb/aqc111.h index 0ce23a741211..4d68b3a6067c 100644 --- a/drivers/net/usb/aqc111.h +++ b/drivers/net/usb/aqc111.h @@ -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 @@ -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; @@ -160,6 +171,7 @@ struct aqc111_data { u8 rev; } fw_ver; u32 phy_cfg; + u8 wol_flags; }; #define AQ_LS_MASK 0x8000 -- GitLab