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Date: Fri, 2 Sep 2016 20:34:22 +0000
From: <Woojung.Huh@...rochip.com>
To: <davem@...emloft.net>
CC: <steve.glendinning@...well.net>, <netdev@...r.kernel.org>,
<UNGLinuxDriver@...rochip.com>
Subject: [PATCH net-next 3/3] smsc95xx: Add mdix control via ethtool
From: Woojung Huh <woojung.huh@...rochip.com>
Add mdix control through ethtool.
Signed-off-by: Woojung Huh <Woojung.huh@...il.com>
---
drivers/net/usb/smsc95xx.c | 109 +++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 106 insertions(+), 3 deletions(-)
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index dc989a8..831aa33 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -33,7 +33,7 @@
#include "smsc95xx.h"
#define SMSC_CHIPNAME "smsc95xx"
-#define SMSC_DRIVER_VERSION "1.0.4"
+#define SMSC_DRIVER_VERSION "1.0.5"
#define HS_USB_PKT_SIZE (512)
#define FS_USB_PKT_SIZE (64)
#define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE)
@@ -64,6 +64,7 @@
#define CARRIER_CHECK_DELAY (2 * HZ)
struct smsc95xx_priv {
+ u32 chip_id;
u32 mac_cr;
u32 hash_hi;
u32 hash_lo;
@@ -71,6 +72,7 @@ struct smsc95xx_priv {
spinlock_t mac_cr_lock;
u8 features;
u8 suspend_flags;
+ u8 mdix_ctrl;
bool link_ok;
struct delayed_work carrier_check;
struct usbnet *dev;
@@ -782,14 +784,113 @@ static int smsc95xx_ethtool_set_wol(struct net_device *net,
return ret;
}
+static int get_mdix_status(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u32 val;
+ int buf;
+
+ buf = smsc95xx_mdio_read(dev->net, dev->mii.phy_id, SPECIAL_CTRL_STS);
+ if (buf & SPECIAL_CTRL_STS_OVRRD_AMDIX_) {
+ if (buf & SPECIAL_CTRL_STS_AMDIX_ENABLE_)
+ return ETH_TP_MDI_AUTO;
+ else if (buf & SPECIAL_CTRL_STS_AMDIX_STATE_)
+ return ETH_TP_MDI_X;
+ } else {
+ buf = smsc95xx_read_reg(dev, STRAP_STATUS, &val);
+ if (val & STRAP_STATUS_AMDIX_EN_)
+ return ETH_TP_MDI_AUTO;
+ }
+
+ return ETH_TP_MDI;
+}
+
+static void set_mdix_status(struct net_device *net, __u8 mdix_ctrl)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ int buf;
+
+ if ((pdata->chip_id == ID_REV_CHIP_ID_9500A_) ||
+ (pdata->chip_id == ID_REV_CHIP_ID_9530_) ||
+ (pdata->chip_id == ID_REV_CHIP_ID_89530_) ||
+ (pdata->chip_id == ID_REV_CHIP_ID_9730_)) {
+ /* Extend Manual AutoMDIX timer for 9500A/9500Ai */
+ buf = smsc95xx_mdio_read(dev->net, dev->mii.phy_id,
+ PHY_EDPD_CONFIG);
+ buf |= PHY_EDPD_CONFIG_EXT_CROSSOVER_;
+ smsc95xx_mdio_write(dev->net, dev->mii.phy_id,
+ PHY_EDPD_CONFIG, buf);
+ }
+
+ if (mdix_ctrl == ETH_TP_MDI) {
+ buf = smsc95xx_mdio_read(dev->net, dev->mii.phy_id,
+ SPECIAL_CTRL_STS);
+ buf |= SPECIAL_CTRL_STS_OVRRD_AMDIX_;
+ buf &= ~(SPECIAL_CTRL_STS_AMDIX_ENABLE_ |
+ SPECIAL_CTRL_STS_AMDIX_STATE_);
+ smsc95xx_mdio_write(dev->net, dev->mii.phy_id,
+ SPECIAL_CTRL_STS, buf);
+ } else if (mdix_ctrl == ETH_TP_MDI_X) {
+ buf = smsc95xx_mdio_read(dev->net, dev->mii.phy_id,
+ SPECIAL_CTRL_STS);
+ buf |= SPECIAL_CTRL_STS_OVRRD_AMDIX_;
+ buf &= ~(SPECIAL_CTRL_STS_AMDIX_ENABLE_ |
+ SPECIAL_CTRL_STS_AMDIX_STATE_);
+ buf |= SPECIAL_CTRL_STS_AMDIX_STATE_;
+ smsc95xx_mdio_write(dev->net, dev->mii.phy_id,
+ SPECIAL_CTRL_STS, buf);
+ } else if (mdix_ctrl == ETH_TP_MDI_AUTO) {
+ buf = smsc95xx_mdio_read(dev->net, dev->mii.phy_id,
+ SPECIAL_CTRL_STS);
+ buf &= ~SPECIAL_CTRL_STS_OVRRD_AMDIX_;
+ buf &= ~(SPECIAL_CTRL_STS_AMDIX_ENABLE_ |
+ SPECIAL_CTRL_STS_AMDIX_STATE_);
+ buf |= SPECIAL_CTRL_STS_AMDIX_ENABLE_;
+ smsc95xx_mdio_write(dev->net, dev->mii.phy_id,
+ SPECIAL_CTRL_STS, buf);
+ }
+ pdata->mdix_ctrl = mdix_ctrl;
+}
+
+static int smsc95xx_get_settings(struct net_device *net,
+ struct ethtool_cmd *cmd)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ int retval;
+
+ retval = usbnet_get_settings(net, cmd);
+
+ cmd->eth_tp_mdix = pdata->mdix_ctrl;
+ cmd->eth_tp_mdix_ctrl = pdata->mdix_ctrl;
+
+ return retval;
+}
+
+static int smsc95xx_set_settings(struct net_device *net,
+ struct ethtool_cmd *cmd)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ int retval;
+
+ if (pdata->mdix_ctrl != cmd->eth_tp_mdix_ctrl)
+ set_mdix_status(net, cmd->eth_tp_mdix_ctrl);
+
+ retval = usbnet_set_settings(net, cmd);
+
+ return retval;
+}
+
static const struct ethtool_ops smsc95xx_ethtool_ops = {
.get_link = usbnet_get_link,
.nway_reset = usbnet_nway_reset,
.get_drvinfo = usbnet_get_drvinfo,
.get_msglevel = usbnet_get_msglevel,
.set_msglevel = usbnet_set_msglevel,
- .get_settings = usbnet_get_settings,
- .set_settings = usbnet_set_settings,
+ .get_settings = smsc95xx_get_settings,
+ .set_settings = smsc95xx_set_settings,
.get_eeprom_len = smsc95xx_ethtool_get_eeprom_len,
.get_eeprom = smsc95xx_ethtool_get_eeprom,
.set_eeprom = smsc95xx_ethtool_set_eeprom,
@@ -1194,6 +1295,8 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
if (ret < 0)
return ret;
val >>= 16;
+ pdata->chip_id = val;
+ pdata->mdix_ctrl = get_mdix_status(dev->net);
if ((val == ID_REV_CHIP_ID_9500A_) || (val == ID_REV_CHIP_ID_9530_) ||
(val == ID_REV_CHIP_ID_89530_) || (val == ID_REV_CHIP_ID_9730_))
--
2.7.4
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