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path: root/drivers/net/usb/r8152.c
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Diffstat (limited to 'drivers/net/usb/r8152.c')
-rw-r--r--drivers/net/usb/r8152.c89
1 files changed, 83 insertions, 6 deletions
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index ad8cbc6c9..d9427ca3d 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -26,8 +26,13 @@
#include <linux/mdio.h>
#include <linux/usb/cdc.h>
-/* Version Information */
-#define DRIVER_VERSION "v1.08.1 (2015/07/28)"
+/* Information for net-next */
+#define NETNEXT_VERSION "08"
+
+/* Information for net */
+#define NET_VERSION "2"
+
+#define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION
#define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
#define DRIVER_DESC "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
#define MODULENAME "r8152"
@@ -143,6 +148,7 @@
#define OCP_EEE_ABLE 0xa5c4
#define OCP_EEE_ADV 0xa5d0
#define OCP_EEE_LPABLE 0xa5d2
+#define OCP_PHY_STATE 0xa708 /* nway state for 8153 */
#define OCP_ADC_CFG 0xbc06
/* SRAM Register */
@@ -339,6 +345,7 @@
/* USB_USB_CTRL */
#define RX_AGG_DISABLE 0x0010
+#define RX_ZERO_EN 0x0080
/* USB_U2P3_CTRL */
#define U2P3_ENABLE 0x0001
@@ -426,6 +433,10 @@
/* OCP_DOWN_SPEED */
#define EN_10M_BGOFF 0x0080
+/* OCP_PHY_STATE */
+#define TXDIS_STATE 0x01
+#define ABD_STATE 0x02
+
/* OCP_ADC_CFG */
#define CKADSEL_L 0x0100
#define ADC_EN 0x0080
@@ -603,6 +614,7 @@ struct r8152 {
void (*unload)(struct r8152 *);
int (*eee_get)(struct r8152 *, struct ethtool_eee *);
int (*eee_set)(struct r8152 *, struct ethtool_eee *);
+ bool (*in_nway)(struct r8152 *);
} rtl_ops;
int intr_interval;
@@ -622,6 +634,7 @@ enum rtl_version {
RTL_VER_03,
RTL_VER_04,
RTL_VER_05,
+ RTL_VER_06,
RTL_VER_MAX
};
@@ -2610,7 +2623,10 @@ static void r8153_hw_phy_cfg(struct r8152 *tp)
u32 ocp_data;
u16 data;
- ocp_reg_write(tp, OCP_ADC_CFG, CKADSEL_L | ADC_EN | EN_EMI_L);
+ if (tp->version == RTL_VER_03 || tp->version == RTL_VER_04 ||
+ tp->version == RTL_VER_05)
+ ocp_reg_write(tp, OCP_ADC_CFG, CKADSEL_L | ADC_EN | EN_EMI_L);
+
data = r8152_mdio_read(tp, MII_BMCR);
if (data & BMCR_PDOWN) {
data &= ~BMCR_PDOWN;
@@ -2711,7 +2727,7 @@ static void r8153_first_init(struct r8152 *tp)
/* rx aggregation */
ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
- ocp_data &= ~RX_AGG_DISABLE;
+ ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
}
@@ -2936,6 +2952,32 @@ static void rtl8153_down(struct r8152 *tp)
r8153_enable_aldps(tp);
}
+static bool rtl8152_in_nway(struct r8152 *tp)
+{
+ u16 nway_state;
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, 0x2000);
+ tp->ocp_base = 0x2000;
+ ocp_write_byte(tp, MCU_TYPE_PLA, 0xb014, 0x4c); /* phy state */
+ nway_state = ocp_read_word(tp, MCU_TYPE_PLA, 0xb01a);
+
+ /* bit 15: TXDIS_STATE, bit 14: ABD_STATE */
+ if (nway_state & 0xc000)
+ return false;
+ else
+ return true;
+}
+
+static bool rtl8153_in_nway(struct r8152 *tp)
+{
+ u16 phy_state = ocp_reg_read(tp, OCP_PHY_STATE) & 0xff;
+
+ if (phy_state == TXDIS_STATE || phy_state == ABD_STATE)
+ return false;
+ else
+ return true;
+}
+
static void set_carrier(struct r8152 *tp)
{
struct net_device *netdev = tp->netdev;
@@ -3241,7 +3283,7 @@ static void r8152b_init(struct r8152 *tp)
/* enable rx aggregation */
ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
- ocp_data &= ~RX_AGG_DISABLE;
+ ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
}
@@ -3293,6 +3335,13 @@ static void r8153_init(struct r8152 *tp)
else
ocp_data |= DYNAMIC_BURST;
ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data);
+ } else if (tp->version == RTL_VER_06) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1);
+ if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0)
+ ocp_data &= ~DYNAMIC_BURST;
+ else
+ ocp_data |= DYNAMIC_BURST;
+ ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data);
}
ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2);
@@ -3393,6 +3442,27 @@ static int rtl8152_post_reset(struct usb_interface *intf)
return 0;
}
+static bool delay_autosuspend(struct r8152 *tp)
+{
+ bool sw_linking = !!netif_carrier_ok(tp->netdev);
+ bool hw_linking = !!(rtl8152_get_speed(tp) & LINK_STATUS);
+
+ /* This means a linking change occurs and the driver doesn't detect it,
+ * yet. If the driver has disabled tx/rx and hw is linking on, the
+ * device wouldn't wake up by receiving any packet.
+ */
+ if (work_busy(&tp->schedule.work) || sw_linking != hw_linking)
+ return true;
+
+ /* If the linking down is occurred by nway, the device may miss the
+ * linking change event. And it wouldn't wake when linking on.
+ */
+ if (!sw_linking && tp->rtl_ops.in_nway(tp))
+ return true;
+ else
+ return false;
+}
+
static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
{
struct r8152 *tp = usb_get_intfdata(intf);
@@ -3402,7 +3472,7 @@ static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
mutex_lock(&tp->control);
if (PMSG_IS_AUTO(message)) {
- if (netif_running(netdev) && work_busy(&tp->schedule.work)) {
+ if (netif_running(netdev) && delay_autosuspend(tp)) {
ret = -EBUSY;
goto out1;
}
@@ -3988,6 +4058,10 @@ static void r8152b_get_version(struct r8152 *tp)
tp->version = RTL_VER_05;
tp->mii.supports_gmii = 1;
break;
+ case 0x5c30:
+ tp->version = RTL_VER_06;
+ tp->mii.supports_gmii = 1;
+ break;
default:
netif_info(tp, probe, tp->netdev,
"Unknown version 0x%04x\n", version);
@@ -4028,11 +4102,13 @@ static int rtl_ops_init(struct r8152 *tp)
ops->unload = rtl8152_unload;
ops->eee_get = r8152_get_eee;
ops->eee_set = r8152_set_eee;
+ ops->in_nway = rtl8152_in_nway;
break;
case RTL_VER_03:
case RTL_VER_04:
case RTL_VER_05:
+ case RTL_VER_06:
ops->init = r8153_init;
ops->enable = rtl8153_enable;
ops->disable = rtl8153_disable;
@@ -4041,6 +4117,7 @@ static int rtl_ops_init(struct r8152 *tp)
ops->unload = rtl8153_unload;
ops->eee_get = r8153_get_eee;
ops->eee_set = r8153_set_eee;
+ ops->in_nway = rtl8153_in_nway;
break;
default:
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-11 18:02:33 +0000