提交 10c32717 编写于 作者: H hayeswang 提交者: David S. Miller

r8152: disable the ECM mode

There are known issues for switching the drivers between ECM mode and
vendor mode. The interrup transfer may become abnormal. The hardware
may have the opportunity to die if you change the configuration without
unloading the current driver first, because all the control transfers
of the current driver would fail after the command of switching the
configuration.

Although to use the ecm driver and vendor driver independently is fine,
it may have problems to change the driver from one to the other by
switching the configuration. Additionally, now the vendor mode driver
is more powerful than the ECM driver. Thus, disable the ECM mode driver,
and let r8152 to set the configuration to vendor mode and reset the
device automatically.
Signed-off-by: NHayes Wang <hayeswang@realtek.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 367d56f7
...@@ -11,7 +11,7 @@ obj-$(CONFIG_USB_HSO) += hso.o ...@@ -11,7 +11,7 @@ obj-$(CONFIG_USB_HSO) += hso.o
obj-$(CONFIG_USB_NET_AX8817X) += asix.o obj-$(CONFIG_USB_NET_AX8817X) += asix.o
asix-y := asix_devices.o asix_common.o ax88172a.o asix-y := asix_devices.o asix_common.o ax88172a.o
obj-$(CONFIG_USB_NET_AX88179_178A) += ax88179_178a.o obj-$(CONFIG_USB_NET_AX88179_178A) += ax88179_178a.o
obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o r815x.o obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
obj-$(CONFIG_USB_NET_CDC_EEM) += cdc_eem.o obj-$(CONFIG_USB_NET_CDC_EEM) += cdc_eem.o
obj-$(CONFIG_USB_NET_DM9601) += dm9601.o obj-$(CONFIG_USB_NET_DM9601) += dm9601.o
obj-$(CONFIG_USB_NET_SR9700) += sr9700.o obj-$(CONFIG_USB_NET_SR9700) += sr9700.o
......
...@@ -652,6 +652,13 @@ static const struct usb_device_id products[] = { ...@@ -652,6 +652,13 @@ static const struct usb_device_id products[] = {
.driver_info = 0, .driver_info = 0,
}, },
/* Samsung USB Ethernet Adapters */
{
USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
.driver_info = 0,
},
/* WHITELIST!!! /* WHITELIST!!!
* *
* CDC Ether uses two interfaces, not necessarily consecutive. * CDC Ether uses two interfaces, not necessarily consecutive.
......
...@@ -449,9 +449,6 @@ enum rtl8152_flags { ...@@ -449,9 +449,6 @@ enum rtl8152_flags {
#define MCU_TYPE_PLA 0x0100 #define MCU_TYPE_PLA 0x0100
#define MCU_TYPE_USB 0x0000 #define MCU_TYPE_USB 0x0000
#define REALTEK_USB_DEVICE(vend, prod) \
USB_DEVICE_INTERFACE_CLASS(vend, prod, USB_CLASS_VENDOR_SPEC)
struct rx_desc { struct rx_desc {
__le32 opts1; __le32 opts1;
#define RX_LEN_MASK 0x7fff #define RX_LEN_MASK 0x7fff
...@@ -2739,6 +2736,12 @@ static int rtl8152_probe(struct usb_interface *intf, ...@@ -2739,6 +2736,12 @@ static int rtl8152_probe(struct usb_interface *intf,
struct net_device *netdev; struct net_device *netdev;
int ret; int ret;
if (udev->actconfig->desc.bConfigurationValue != 1) {
usb_driver_set_configuration(udev, 1);
return -ENODEV;
}
usb_reset_device(udev);
netdev = alloc_etherdev(sizeof(struct r8152)); netdev = alloc_etherdev(sizeof(struct r8152));
if (!netdev) { if (!netdev) {
dev_err(&intf->dev, "Out of memory\n"); dev_err(&intf->dev, "Out of memory\n");
...@@ -2819,9 +2822,9 @@ static void rtl8152_disconnect(struct usb_interface *intf) ...@@ -2819,9 +2822,9 @@ static void rtl8152_disconnect(struct usb_interface *intf)
/* table of devices that work with this driver */ /* table of devices that work with this driver */
static struct usb_device_id rtl8152_table[] = { static struct usb_device_id rtl8152_table[] = {
{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8152)}, {USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8152)},
{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8153)}, {USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8153)},
{REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, PRODUCT_ID_SAMSUNG)}, {USB_DEVICE(VENDOR_ID_SAMSUNG, PRODUCT_ID_SAMSUNG)},
{} {}
}; };
......
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/mii.h>
#include <linux/usb.h>
#include <linux/usb/cdc.h>
#include <linux/usb/usbnet.h>
#define RTL815x_REQT_READ 0xc0
#define RTL815x_REQT_WRITE 0x40
#define RTL815x_REQ_GET_REGS 0x05
#define RTL815x_REQ_SET_REGS 0x05
#define MCU_TYPE_PLA 0x0100
#define OCP_BASE 0xe86c
#define BASE_MII 0xa400
#define BYTE_EN_DWORD 0xff
#define BYTE_EN_WORD 0x33
#define BYTE_EN_BYTE 0x11
#define R815x_PHY_ID 32
#define REALTEK_VENDOR_ID 0x0bda
static int pla_read_word(struct usb_device *udev, u16 index)
{
int ret;
u8 shift = index & 2;
__le32 *tmp;
tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
if (!tmp)
return -ENOMEM;
index &= ~3;
ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
RTL815x_REQ_GET_REGS, RTL815x_REQT_READ,
index, MCU_TYPE_PLA, tmp, sizeof(*tmp), 500);
if (ret < 0)
goto out2;
ret = __le32_to_cpu(*tmp);
ret >>= (shift * 8);
ret &= 0xffff;
out2:
kfree(tmp);
return ret;
}
static int pla_write_word(struct usb_device *udev, u16 index, u32 data)
{
__le32 *tmp;
u32 mask = 0xffff;
u16 byen = BYTE_EN_WORD;
u8 shift = index & 2;
int ret;
tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
if (!tmp)
return -ENOMEM;
data &= mask;
if (shift) {
byen <<= shift;
mask <<= (shift * 8);
data <<= (shift * 8);
index &= ~3;
}
ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
RTL815x_REQ_GET_REGS, RTL815x_REQT_READ,
index, MCU_TYPE_PLA, tmp, sizeof(*tmp), 500);
if (ret < 0)
goto out3;
data |= __le32_to_cpu(*tmp) & ~mask;
*tmp = __cpu_to_le32(data);
ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
RTL815x_REQ_SET_REGS, RTL815x_REQT_WRITE,
index, MCU_TYPE_PLA | byen, tmp, sizeof(*tmp),
500);
out3:
kfree(tmp);
return ret;
}
static int ocp_reg_read(struct usbnet *dev, u16 addr)
{
u16 ocp_base, ocp_index;
int ret;
ocp_base = addr & 0xf000;
ret = pla_write_word(dev->udev, OCP_BASE, ocp_base);
if (ret < 0)
goto out;
ocp_index = (addr & 0x0fff) | 0xb000;
ret = pla_read_word(dev->udev, ocp_index);
out:
return ret;
}
static int ocp_reg_write(struct usbnet *dev, u16 addr, u16 data)
{
u16 ocp_base, ocp_index;
int ret;
ocp_base = addr & 0xf000;
ret = pla_write_word(dev->udev, OCP_BASE, ocp_base);
if (ret < 0)
goto out1;
ocp_index = (addr & 0x0fff) | 0xb000;
ret = pla_write_word(dev->udev, ocp_index, data);
out1:
return ret;
}
static int r815x_mdio_read(struct net_device *netdev, int phy_id, int reg)
{
struct usbnet *dev = netdev_priv(netdev);
int ret;
if (phy_id != R815x_PHY_ID)
return -EINVAL;
if (usb_autopm_get_interface(dev->intf) < 0)
return -ENODEV;
ret = ocp_reg_read(dev, BASE_MII + reg * 2);
usb_autopm_put_interface(dev->intf);
return ret;
}
static
void r815x_mdio_write(struct net_device *netdev, int phy_id, int reg, int val)
{
struct usbnet *dev = netdev_priv(netdev);
if (phy_id != R815x_PHY_ID)
return;
if (usb_autopm_get_interface(dev->intf) < 0)
return;
ocp_reg_write(dev, BASE_MII + reg * 2, val);
usb_autopm_put_interface(dev->intf);
}
static int r8153_bind(struct usbnet *dev, struct usb_interface *intf)
{
int status;
status = usbnet_cdc_bind(dev, intf);
if (status < 0)
return status;
dev->mii.dev = dev->net;
dev->mii.mdio_read = r815x_mdio_read;
dev->mii.mdio_write = r815x_mdio_write;
dev->mii.phy_id_mask = 0x3f;
dev->mii.reg_num_mask = 0x1f;
dev->mii.phy_id = R815x_PHY_ID;
dev->mii.supports_gmii = 1;
return status;
}
static int r8152_bind(struct usbnet *dev, struct usb_interface *intf)
{
int status;
status = usbnet_cdc_bind(dev, intf);
if (status < 0)
return status;
dev->mii.dev = dev->net;
dev->mii.mdio_read = r815x_mdio_read;
dev->mii.mdio_write = r815x_mdio_write;
dev->mii.phy_id_mask = 0x3f;
dev->mii.reg_num_mask = 0x1f;
dev->mii.phy_id = R815x_PHY_ID;
dev->mii.supports_gmii = 0;
return status;
}
static const struct driver_info r8152_info = {
.description = "RTL8152 ECM Device",
.flags = FLAG_ETHER | FLAG_POINTTOPOINT,
.bind = r8152_bind,
.unbind = usbnet_cdc_unbind,
.status = usbnet_cdc_status,
.manage_power = usbnet_manage_power,
};
static const struct driver_info r8153_info = {
.description = "RTL8153 ECM Device",
.flags = FLAG_ETHER | FLAG_POINTTOPOINT,
.bind = r8153_bind,
.unbind = usbnet_cdc_unbind,
.status = usbnet_cdc_status,
.manage_power = usbnet_manage_power,
};
static const struct usb_device_id products[] = {
{
USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
.driver_info = (unsigned long) &r8152_info,
},
{
USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
.driver_info = (unsigned long) &r8153_info,
},
{ }, /* END */
};
MODULE_DEVICE_TABLE(usb, products);
static struct usb_driver r815x_driver = {
.name = "r815x",
.id_table = products,
.probe = usbnet_probe,
.disconnect = usbnet_disconnect,
.suspend = usbnet_suspend,
.resume = usbnet_resume,
.reset_resume = usbnet_resume,
.supports_autosuspend = 1,
.disable_hub_initiated_lpm = 1,
};
module_usb_driver(r815x_driver);
MODULE_AUTHOR("Hayes Wang");
MODULE_DESCRIPTION("Realtek USB ECM device");
MODULE_LICENSE("GPL");
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册