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authorhayeswang <hayeswang@realtek.com>2013-05-02 16:01:25 +0000
committerDavid S. Miller <davem@davemloft.net>2013-05-06 16:16:52 -0400
commitac718b69301c7c07cd0d858570f76a0e1c4c8726 (patch)
tree8d70adae65fe8326403b3db73f25b9b52d24de93 /drivers/net/usb
parentc81400be716aa4c76f6ebf339ba94358dbbf6da6 (diff)
net/usb: new driver for RTL8152
Add new driver for supporting Realtek RTL8152 Based USB 2.0 Ethernet Adapters Signed-off-by: Hayes Wang <hayeswang@realtek.com> Cc: Realtek linux nic maintainers <nic_swsd@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb')
-rw-r--r--drivers/net/usb/Kconfig11
-rw-r--r--drivers/net/usb/Makefile1
-rw-r--r--drivers/net/usb/cdc_ether.c10
-rw-r--r--drivers/net/usb/r8152.c1767
4 files changed, 1789 insertions, 0 deletions
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 7c769d8e25a..287cc624b90 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -93,6 +93,17 @@ config USB_RTL8150
To compile this driver as a module, choose M here: the
module will be called rtl8150.
+config USB_RTL8152
+ tristate "Realtek RTL8152 Based USB 2.0 Ethernet Adapters"
+ select NET_CORE
+ select MII
+ help
+ This option adds support for Realtek RTL8152 based USB 2.0
+ 10/100 Ethernet adapters.
+
+ To compile this driver as a module, choose M here: the
+ module will be called r8152.
+
config USB_USBNET
tristate "Multi-purpose USB Networking Framework"
select NET_CORE
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index 119b06c9aa1..9ab5c9d4b45 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_USB_CATC) += catc.o
obj-$(CONFIG_USB_KAWETH) += kaweth.o
obj-$(CONFIG_USB_PEGASUS) += pegasus.o
obj-$(CONFIG_USB_RTL8150) += rtl8150.o
+obj-$(CONFIG_USB_RTL8152) += r8152.o
obj-$(CONFIG_USB_HSO) += hso.o
obj-$(CONFIG_USB_NET_AX8817X) += asix.o
asix-y := asix_devices.o asix_common.o ax88172a.o
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 4ff71d619cd..24fbec27a22 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -479,6 +479,7 @@ static const struct driver_info wwan_info = {
#define NOVATEL_VENDOR_ID 0x1410
#define ZTE_VENDOR_ID 0x19D2
#define DELL_VENDOR_ID 0x413C
+#define REALTEK_VENDOR_ID 0x0bda
static const struct usb_device_id products [] = {
/*
@@ -619,6 +620,15 @@ static const struct usb_device_id products [] = {
.driver_info = 0,
},
+/* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
+#if defined(CONFIG_USB_RTL8152) || defined(CONFIG_USB_RTL8152_MODULE)
+{
+ USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+#endif
+
/*
* WHITELIST!!!
*
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
new file mode 100644
index 00000000000..14e51988863
--- /dev/null
+++ b/drivers/net/usb/r8152.c
@@ -0,0 +1,1767 @@
+/*
+ * Copyright (c) 2013 Realtek Semiconductor Corp. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/signal.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/if_vlan.h>
+#include <linux/uaccess.h>
+
+/* Version Information */
+#define DRIVER_VERSION "v1.0.0 (2013/05/03)"
+#define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
+#define DRIVER_DESC "Realtek RTL8152 Based USB 2.0 Ethernet Adapters"
+#define MODULENAME "r8152"
+
+#define R8152_PHY_ID 32
+
+#define PLA_IDR 0xc000
+#define PLA_RCR 0xc010
+#define PLA_RMS 0xc016
+#define PLA_RXFIFO_CTRL0 0xc0a0
+#define PLA_RXFIFO_CTRL1 0xc0a4
+#define PLA_RXFIFO_CTRL2 0xc0a8
+#define PLA_FMC 0xc0b4
+#define PLA_CFG_WOL 0xc0b6
+#define PLA_MAR 0xcd00
+#define PAL_BDC_CR 0xd1a0
+#define PLA_LEDSEL 0xdd90
+#define PLA_LED_FEATURE 0xdd92
+#define PLA_PHYAR 0xde00
+#define PLA_GPHY_INTR_IMR 0xe022
+#define PLA_EEE_CR 0xe040
+#define PLA_EEEP_CR 0xe080
+#define PLA_MAC_PWR_CTRL 0xe0c0
+#define PLA_TCR0 0xe610
+#define PLA_TCR1 0xe612
+#define PLA_TXFIFO_CTRL 0xe618
+#define PLA_RSTTELLY 0xe800
+#define PLA_CR 0xe813
+#define PLA_CRWECR 0xe81c
+#define PLA_CONFIG5 0xe822
+#define PLA_PHY_PWR 0xe84c
+#define PLA_OOB_CTRL 0xe84f
+#define PLA_CPCR 0xe854
+#define PLA_MISC_0 0xe858
+#define PLA_MISC_1 0xe85a
+#define PLA_OCP_GPHY_BASE 0xe86c
+#define PLA_TELLYCNT 0xe890
+#define PLA_SFF_STS_7 0xe8de
+#define PLA_PHYSTATUS 0xe908
+#define PLA_BP_BA 0xfc26
+#define PLA_BP_0 0xfc28
+#define PLA_BP_1 0xfc2a
+#define PLA_BP_2 0xfc2c
+#define PLA_BP_3 0xfc2e
+#define PLA_BP_4 0xfc30
+#define PLA_BP_5 0xfc32
+#define PLA_BP_6 0xfc34
+#define PLA_BP_7 0xfc36
+
+#define USB_DEV_STAT 0xb808
+#define USB_USB_CTRL 0xd406
+#define USB_PHY_CTRL 0xd408
+#define USB_TX_AGG 0xd40a
+#define USB_RX_BUF_TH 0xd40c
+#define USB_USB_TIMER 0xd428
+#define USB_PM_CTRL_STATUS 0xd432
+#define USB_TX_DMA 0xd434
+#define USB_UPS_CTRL 0xd800
+#define USB_BP_BA 0xfc26
+#define USB_BP_0 0xfc28
+#define USB_BP_1 0xfc2a
+#define USB_BP_2 0xfc2c
+#define USB_BP_3 0xfc2e
+#define USB_BP_4 0xfc30
+#define USB_BP_5 0xfc32
+#define USB_BP_6 0xfc34
+#define USB_BP_7 0xfc36
+
+/* OCP Registers */
+#define OCP_ALDPS_CONFIG 0x2010
+#define OCP_EEE_CONFIG1 0x2080
+#define OCP_EEE_CONFIG2 0x2092
+#define OCP_EEE_CONFIG3 0x2094
+#define OCP_EEE_AR 0xa41a
+#define OCP_EEE_DATA 0xa41c
+
+/* PLA_RCR */
+#define RCR_AAP 0x00000001
+#define RCR_APM 0x00000002
+#define RCR_AM 0x00000004
+#define RCR_AB 0x00000008
+#define RCR_ACPT_ALL (RCR_AAP | RCR_APM | RCR_AM | RCR_AB)
+
+/* PLA_RXFIFO_CTRL0 */
+#define RXFIFO_THR1_NORMAL 0x00080002
+#define RXFIFO_THR1_OOB 0x01800003
+
+/* PLA_RXFIFO_CTRL1 */
+#define RXFIFO_THR2_FULL 0x00000060
+#define RXFIFO_THR2_HIGH 0x00000038
+#define RXFIFO_THR2_OOB 0x0000004a
+
+/* PLA_RXFIFO_CTRL2 */
+#define RXFIFO_THR3_FULL 0x00000078
+#define RXFIFO_THR3_HIGH 0x00000048
+#define RXFIFO_THR3_OOB 0x0000005a
+
+/* PLA_TXFIFO_CTRL */
+#define TXFIFO_THR_NORMAL 0x00400008
+
+/* PLA_FMC */
+#define FMC_FCR_MCU_EN 0x0001
+
+/* PLA_EEEP_CR */
+#define EEEP_CR_EEEP_TX 0x0002
+
+/* PLA_TCR0 */
+#define TCR0_TX_EMPTY 0x0800
+#define TCR0_AUTO_FIFO 0x0080
+
+/* PLA_TCR1 */
+#define VERSION_MASK 0x7cf0
+
+/* PLA_CR */
+#define CR_RST 0x10
+#define CR_RE 0x08
+#define CR_TE 0x04
+
+/* PLA_CRWECR */
+#define CRWECR_NORAML 0x00
+#define CRWECR_CONFIG 0xc0
+
+/* PLA_OOB_CTRL */
+#define NOW_IS_OOB 0x80
+#define TXFIFO_EMPTY 0x20
+#define RXFIFO_EMPTY 0x10
+#define LINK_LIST_READY 0x02
+#define DIS_MCU_CLROOB 0x01
+#define FIFO_EMPTY (TXFIFO_EMPTY | RXFIFO_EMPTY)
+
+/* PLA_MISC_1 */
+#define RXDY_GATED_EN 0x0008
+
+/* PLA_SFF_STS_7 */
+#define RE_INIT_LL 0x8000
+#define MCU_BORW_EN 0x4000
+
+/* PLA_CPCR */
+#define CPCR_RX_VLAN 0x0040
+
+/* PLA_CFG_WOL */
+#define MAGIC_EN 0x0001
+
+/* PAL_BDC_CR */
+#define ALDPS_PROXY_MODE 0x0001
+
+/* PLA_CONFIG5 */
+#define LAN_WAKE_EN 0x0002
+
+/* PLA_LED_FEATURE */
+#define LED_MODE_MASK 0x0700
+
+/* PLA_PHY_PWR */
+#define TX_10M_IDLE_EN 0x0080
+#define PFM_PWM_SWITCH 0x0040
+
+/* PLA_MAC_PWR_CTRL */
+#define D3_CLK_GATED_EN 0x00004000
+#define MCU_CLK_RATIO 0x07010f07
+#define MCU_CLK_RATIO_MASK 0x0f0f0f0f
+
+/* PLA_GPHY_INTR_IMR */
+#define GPHY_STS_MSK 0x0001
+#define SPEED_DOWN_MSK 0x0002
+#define SPDWN_RXDV_MSK 0x0004
+#define SPDWN_LINKCHG_MSK 0x0008
+
+/* PLA_PHYAR */
+#define PHYAR_FLAG 0x80000000
+
+/* PLA_EEE_CR */
+#define EEE_RX_EN 0x0001
+#define EEE_TX_EN 0x0002
+
+/* USB_DEV_STAT */
+#define STAT_SPEED_MASK 0x0006
+#define STAT_SPEED_HIGH 0x0000
+#define STAT_SPEED_FULL 0x0001
+
+/* USB_TX_AGG */
+#define TX_AGG_MAX_THRESHOLD 0x03
+
+/* USB_RX_BUF_TH */
+#define RX_BUF_THR 0x7a120180
+
+/* USB_TX_DMA */
+#define TEST_MODE_DISABLE 0x00000001
+#define TX_SIZE_ADJUST1 0x00000100
+
+/* USB_UPS_CTRL */
+#define POWER_CUT 0x0100
+
+/* USB_PM_CTRL_STATUS */
+#define RWSUME_INDICATE 0x0001
+
+/* USB_USB_CTRL */
+#define RX_AGG_DISABLE 0x0010
+
+/* OCP_ALDPS_CONFIG */
+#define ENPWRSAVE 0x8000
+#define ENPDNPS 0x0200
+#define LINKENA 0x0100
+#define DIS_SDSAVE 0x0010
+
+/* OCP_EEE_CONFIG1 */
+#define RG_TXLPI_MSK_HFDUP 0x8000
+#define RG_MATCLR_EN 0x4000
+#define EEE_10_CAP 0x2000
+#define EEE_NWAY_EN 0x1000
+#define TX_QUIET_EN 0x0200
+#define RX_QUIET_EN 0x0100
+#define SDRISETIME 0x0010 /* bit 4 ~ 6 */
+#define RG_RXLPI_MSK_HFDUP 0x0008
+#define SDFALLTIME 0x0007 /* bit 0 ~ 2 */
+
+/* OCP_EEE_CONFIG2 */
+#define RG_LPIHYS_NUM 0x7000 /* bit 12 ~ 15 */
+#define RG_DACQUIET_EN 0x0400
+#define RG_LDVQUIET_EN 0x0200
+#define RG_CKRSEL 0x0020
+#define RG_EEEPRG_EN 0x0010
+
+/* OCP_EEE_CONFIG3 */
+#define FST_SNR_EYE_R 0x1500 /* bit 7 ~ 15 */
+#define RG_LFS_SEL 0x0060 /* bit 6 ~ 5 */
+#define MSK_PH 0x0006 /* bit 0 ~ 3 */
+
+/* OCP_EEE_AR */
+/* bit[15:14] function */
+#define FUN_ADDR 0x0000
+#define FUN_DATA 0x4000
+/* bit[4:0] device addr */
+#define DEVICE_ADDR 0x0007
+
+/* OCP_EEE_DATA */
+#define EEE_ADDR 0x003C
+#define EEE_DATA 0x0002
+
+enum rtl_register_content {
+ _100bps = 0x08,
+ _10bps = 0x04,
+ LINK_STATUS = 0x02,
+ FULL_DUP = 0x01,
+};
+
+#define RTL8152_REQT_READ 0xc0
+#define RTL8152_REQT_WRITE 0x40
+#define RTL8152_REQ_GET_REGS 0x05
+#define RTL8152_REQ_SET_REGS 0x05
+
+#define BYTE_EN_DWORD 0xff
+#define BYTE_EN_WORD 0x33
+#define BYTE_EN_BYTE 0x11
+#define BYTE_EN_SIX_BYTES 0x3f
+#define BYTE_EN_START_MASK 0x0f
+#define BYTE_EN_END_MASK 0xf0
+
+#define RTL8152_RMS (VLAN_ETH_FRAME_LEN + VLAN_HLEN)
+#define RTL8152_TX_TIMEOUT (HZ)
+
+/* rtl8152 flags */
+enum rtl8152_flags {
+ RTL8152_UNPLUG = 0,
+ RX_URB_FAIL,
+ RTL8152_SET_RX_MODE,
+ WORK_ENABLE
+};
+
+/* Define these values to match your device */
+#define VENDOR_ID_REALTEK 0x0bda
+#define PRODUCT_ID_RTL8152 0x8152
+
+#define MCU_TYPE_PLA 0x0100
+#define MCU_TYPE_USB 0x0000
+
+struct rx_desc {
+ u32 opts1;
+#define RX_LEN_MASK 0x7fff
+ u32 opts2;
+ u32 opts3;
+ u32 opts4;
+ u32 opts5;
+ u32 opts6;
+};
+
+struct tx_desc {
+ u32 opts1;
+#define TX_FS (1 << 31) /* First segment of a packet */
+#define TX_LS (1 << 30) /* Final segment of a packet */
+#define TX_LEN_MASK 0xffff
+ u32 opts2;
+};
+
+struct r8152 {
+ unsigned long flags;
+ struct usb_device *udev;
+ struct tasklet_struct tl;
+ struct net_device *netdev;
+ struct urb *rx_urb, *tx_urb;
+ struct sk_buff *tx_skb, *rx_skb;
+ struct delayed_work schedule;
+ struct mii_if_info mii;
+ u32 msg_enable;
+ u16 ocp_base;
+ u8 version;
+ u8 speed;
+};
+
+enum rtl_version {
+ RTL_VER_UNKNOWN = 0,
+ RTL_VER_01,
+ RTL_VER_02
+};
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ * The RTL chips use a 64 element hash table based on the Ethernet CRC.
+ */
+static const int multicast_filter_limit = 32;
+
+static
+int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
+{
+ return usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0),
+ RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
+ value, index, data, size, 500);
+}
+
+static
+int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
+{
+ return usb_control_msg(tp->udev, usb_sndctrlpipe(tp->udev, 0),
+ RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE,
+ value, index, data, size, 500);
+}
+
+static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size,
+ void *data, u16 type)
+{
+ u16 limit = 64;
+ int ret = 0;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return -ENODEV;
+
+ /* both size and indix must be 4 bytes align */
+ if ((size & 3) || !size || (index & 3) || !data)
+ return -EPERM;
+
+ if ((u32)index + (u32)size > 0xffff)
+ return -EPERM;
+
+ while (size) {
+ if (size > limit) {
+ ret = get_registers(tp, index, type, limit, data);
+ if (ret < 0)
+ break;
+
+ index += limit;
+ data += limit;
+ size -= limit;
+ } else {
+ ret = get_registers(tp, index, type, size, data);
+ if (ret < 0)
+ break;
+
+ index += size;
+ data += size;
+ size = 0;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
+ u16 size, void *data, u16 type)
+{
+ int ret;
+ u16 byteen_start, byteen_end, byen;
+ u16 limit = 512;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return -ENODEV;
+
+ /* both size and indix must be 4 bytes align */
+ if ((size & 3) || !size || (index & 3) || !data)
+ return -EPERM;
+
+ if ((u32)index + (u32)size > 0xffff)
+ return -EPERM;
+
+ byteen_start = byteen & BYTE_EN_START_MASK;
+ byteen_end = byteen & BYTE_EN_END_MASK;
+
+ byen = byteen_start | (byteen_start << 4);
+ ret = set_registers(tp, index, type | byen, 4, data);
+ if (ret < 0)
+ goto error1;
+
+ index += 4;
+ data += 4;
+ size -= 4;
+
+ if (size) {
+ size -= 4;
+
+ while (size) {
+ if (size > limit) {
+ ret = set_registers(tp, index,
+ type | BYTE_EN_DWORD,
+ limit, data);
+ if (ret < 0)
+ goto error1;
+
+ index += limit;
+ data += limit;
+ size -= limit;
+ } else {
+ ret = set_registers(tp, index,
+ type | BYTE_EN_DWORD,
+ size, data);
+ if (ret < 0)
+ goto error1;
+
+ index += size;
+ data += size;
+ size = 0;
+ break;
+ }
+ }
+
+ byen = byteen_end | (byteen_end >> 4);
+ ret = set_registers(tp, index, type | byen, 4, data);
+ if (ret < 0)
+ goto error1;
+ }
+
+error1:
+ return ret;
+}
+
+static inline
+int pla_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
+{
+ return generic_ocp_read(tp, index, size, data, MCU_TYPE_PLA);
+}
+
+static inline
+int pla_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
+{
+ return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_PLA);
+}
+
+static inline
+int usb_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
+{
+ return generic_ocp_read(tp, index, size, data, MCU_TYPE_USB);
+}
+
+static inline
+int usb_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
+{
+ return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_USB);
+}
+
+static u32 ocp_read_dword(struct r8152 *tp, u16 type, u16 index)
+{
+ u32 data;
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_read(tp, index, sizeof(data), &data);
+ else
+ usb_ocp_read(tp, index, sizeof(data), &data);
+
+ return __le32_to_cpu(data);
+}
+
+static void ocp_write_dword(struct r8152 *tp, u16 type, u16 index, u32 data)
+{
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(data), &data);
+ else
+ usb_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(data), &data);
+}
+
+static u16 ocp_read_word(struct r8152 *tp, u16 type, u16 index)
+{
+ u32 data;
+ u8 shift = index & 2;
+
+ index &= ~3;
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_read(tp, index, sizeof(data), &data);
+ else
+ usb_ocp_read(tp, index, sizeof(data), &data);
+
+ data = __le32_to_cpu(data);
+ data >>= (shift * 8);
+ data &= 0xffff;
+
+ return (u16)data;
+}
+
+static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data)
+{
+ u32 tmp, mask = 0xffff;
+ u16 byen = BYTE_EN_WORD;
+ u8 shift = index & 2;
+
+ data &= mask;
+
+ if (index & 2) {
+ byen <<= shift;
+ mask <<= (shift * 8);
+ data <<= (shift * 8);
+ index &= ~3;
+ }
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_read(tp, index, sizeof(tmp), &tmp);
+ else
+ usb_ocp_read(tp, index, sizeof(tmp), &tmp);
+
+ tmp = __le32_to_cpu(tmp) & ~mask;
+ tmp |= data;
+ tmp = __cpu_to_le32(tmp);
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_write(tp, index, byen, sizeof(tmp), &tmp);
+ else
+ usb_ocp_write(tp, index, byen, sizeof(tmp), &tmp);
+}
+
+static u8 ocp_read_byte(struct r8152 *tp, u16 type, u16 index)
+{
+ u32 data;
+ u8 shift = index & 3;
+
+ index &= ~3;
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_read(tp, index, sizeof(data), &data);
+ else
+ usb_ocp_read(tp, index, sizeof(data), &data);
+
+ data = __le32_to_cpu(data);
+ data >>= (shift * 8);
+ data &= 0xff;
+
+ return (u8)data;
+}
+
+static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data)
+{
+ u32 tmp, mask = 0xff;
+ u16 byen = BYTE_EN_BYTE;
+ u8 shift = index & 3;
+
+ data &= mask;
+
+ if (index & 3) {
+ byen <<= shift;
+ mask <<= (shift * 8);
+ data <<= (shift * 8);
+ index &= ~3;
+ }
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_read(tp, index, sizeof(tmp), &tmp);
+ else
+ usb_ocp_read(tp, index, sizeof(tmp), &tmp);
+
+ tmp = __le32_to_cpu(tmp) & ~mask;
+ tmp |= data;
+ tmp = __cpu_to_le32(tmp);
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_write(tp, index, byen, sizeof(tmp), &tmp);
+ else
+ usb_ocp_write(tp, index, byen, sizeof(tmp), &tmp);
+}
+
+static void r8152_mdio_write(struct r8152 *tp, u32 reg_addr, u32 value)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = PHYAR_FLAG | ((reg_addr & 0x1f) << 16) |
+ (value & 0xffff);
+
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_PHYAR, ocp_data);
+
+ for (i = 20; i > 0; i--) {
+ udelay(25);
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_PHYAR);
+ if (!(ocp_data & PHYAR_FLAG))
+ break;
+ }
+ udelay(20);
+}
+
+static int r8152_mdio_read(struct r8152 *tp, u32 reg_addr)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = (reg_addr & 0x1f) << 16;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_PHYAR, ocp_data);
+
+ for (i = 20; i > 0; i--) {
+ udelay(25);
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_PHYAR);
+ if (ocp_data & PHYAR_FLAG)
+ break;
+ }
+ udelay(20);
+
+ if (!(ocp_data & PHYAR_FLAG))
+ return -EAGAIN;
+
+ return (u16)(ocp_data & 0xffff);
+}
+
+static int read_mii_word(struct net_device *netdev, int phy_id, int reg)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ if (phy_id != R8152_PHY_ID)
+ return -EINVAL;
+
+ return r8152_mdio_read(tp, reg);
+}
+
+static
+void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ if (phy_id != R8152_PHY_ID)
+ return;
+
+ r8152_mdio_write(tp, reg, val);
+}
+
+static void ocp_reg_write(struct r8152 *tp, u16 addr, u16 data)
+{
+ u16 ocp_base, ocp_index;
+
+ ocp_base = addr & 0xf000;
+ if (ocp_base != tp->ocp_base) {
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base);
+ tp->ocp_base = ocp_base;
+ }
+
+ ocp_index = (addr & 0x0fff) | 0xb000;
+ ocp_write_word(tp, MCU_TYPE_PLA, ocp_index, data);
+}
+
+static inline void set_ethernet_addr(struct r8152 *tp)
+{
+ struct net_device *dev = tp->netdev;
+ u8 *node_id;
+
+ node_id = kmalloc(sizeof(u8) * 8, GFP_KERNEL);
+ if (!node_id) {
+ netif_err(tp, probe, dev, "out of memory");
+ return;
+ }
+
+ if (pla_ocp_read(tp, PLA_IDR, sizeof(u8) * 8, node_id) < 0)
+ netif_notice(tp, probe, dev, "inet addr fail\n");
+ else {
+ memcpy(dev->dev_addr, node_id, dev->addr_len);
+ memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
+ }
+ kfree(node_id);
+}
+
+static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
+ pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data);
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
+
+ return 0;
+}
+
+static int alloc_all_urbs(struct r8152 *tp)
+{
+ tp->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!tp->rx_urb)
+ return 0;
+ tp->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!tp->tx_urb) {
+ usb_free_urb(tp->rx_urb);
+ return 0;
+ }
+
+ return 1;
+}
+
+static void free_all_urbs(struct r8152 *tp)
+{
+ usb_free_urb(tp->rx_urb);
+ usb_free_urb(tp->tx_urb);
+}
+
+static struct net_device_stats *rtl8152_get_stats(struct net_device *dev)
+{
+ return &dev->stats;
+}
+
+static void read_bulk_callback(struct urb *urb)
+{
+ struct r8152 *tp;
+ unsigned pkt_len;
+ struct sk_buff *skb;
+ struct net_device *netdev;
+ struct net_device_stats *stats;
+ int status = urb->status;
+ int result;
+ struct rx_desc *rx_desc;
+
+ tp = urb->context;
+ if (!tp)
+ return;
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+ netdev = tp->netdev;
+ if (!netif_device_present(netdev))
+ return;
+
+ stats = rtl8152_get_stats(netdev);
+ switch (status) {
+ case 0:
+ break;
+ case -ESHUTDOWN:
+ set_bit(RTL8152_UNPLUG, &tp->flags);
+ netif_device_detach(tp->netdev);
+ case -ENOENT:
+ return; /* the urb is in unlink state */
+ case -ETIME:
+ pr_warn_ratelimited("may be reset is needed?..\n");
+ goto goon;
+ default:
+ pr_warn_ratelimited("Rx status %d\n", status);
+ goto goon;
+ }
+
+ /* protect against short packets (tell me why we got some?!?) */
+ if (urb->actual_length < sizeof(*rx_desc))
+ goto goon;
+
+
+ rx_desc = (struct rx_desc *)urb->transfer_buffer;
+ pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
+ if (urb->actual_length < sizeof(struct rx_desc) + pkt_len)
+ goto goon;
+
+ skb = netdev_alloc_skb_ip_align(netdev, pkt_len);
+ if (!skb)
+ goto goon;
+
+ memcpy(skb->data, tp->rx_skb->data + sizeof(struct rx_desc), pkt_len);
+ skb_put(skb, pkt_len);
+ skb->protocol = eth_type_trans(skb, netdev);
+ netif_rx(skb);
+ stats->rx_packets++;
+ stats->rx_bytes += pkt_len;
+goon:
+ usb_fill_bulk_urb(tp->rx_urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
+ tp->rx_skb->data, RTL8152_RMS + sizeof(struct rx_desc),
+ (usb_complete_t)read_bulk_callback, tp);
+ result = usb_submit_urb(tp->rx_urb, GFP_ATOMIC);
+ if (result == -ENODEV) {
+ netif_device_detach(tp->netdev);
+ } else if (result) {
+ set_bit(RX_URB_FAIL, &tp->flags);
+ goto resched;
+ } else {
+ clear_bit(RX_URB_FAIL, &tp->flags);
+ }
+
+ return;
+resched:
+ tasklet_schedule(&tp->tl);
+}
+
+static void rx_fixup(unsigned long data)
+{
+ struct r8152 *tp;
+ int status;
+
+ tp = (struct r8152 *)data;
+ if (!test_bit(WORK_ENABLE, &tp->flags))
+ return;
+
+ status = usb_submit_urb(tp->rx_urb, GFP_ATOMIC);
+ if (status == -ENODEV) {
+ netif_device_detach(tp->netdev);
+ } else if (status) {
+ set_bit(RX_URB_FAIL, &tp->flags);
+ goto tlsched;
+ } else {
+ clear_bit(RX_URB_FAIL, &tp->flags);
+ }
+
+ return;
+tlsched:
+ tasklet_schedule(&tp->tl);
+}
+
+static void write_bulk_callback(struct urb *urb)
+{
+ struct r8152 *tp;
+ int status = urb->status;
+
+ tp = urb->context;
+ if (!tp)
+ return;
+ dev_kfree_skb_irq(tp->tx_skb);
+ if (!netif_device_present(tp->netdev))
+ return;
+ if (status)
+ dev_info(&urb->dev->dev, "%s: Tx status %d\n",
+ tp->netdev->name, status);
+ tp->netdev->trans_start = jiffies;
+ netif_wake_queue(tp->netdev);
+}
+
+static void rtl8152_tx_timeout(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ struct net_device_stats *stats = rtl8152_get_stats(netdev);
+ netif_warn(tp, tx_err, netdev, "Tx timeout.\n");
+ usb_unlink_urb(tp->tx_urb);
+ stats->tx_errors++;
+}
+
+static void rtl8152_set_rx_mode(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ if (tp->speed & LINK_STATUS)
+ set_bit(RTL8152_SET_RX_MODE, &tp->flags);
+}
+
+static void _rtl8152_set_rx_mode(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ u32 tmp, *mc_filter; /* Multicast hash filter */
+ u32 ocp_data;
+
+ mc_filter = kmalloc(sizeof(u32) * 2, GFP_KERNEL);
+ if (!mc_filter) {
+ netif_err(tp, link, netdev, "out of memory");
+ return;
+ }
+
+ clear_bit(RTL8152_SET_RX_MODE, &tp->flags);
+ netif_stop_queue(netdev);
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data &= ~RCR_ACPT_ALL;
+ ocp_data |= RCR_AB | RCR_APM;
+
+ if (netdev->flags & IFF_PROMISC) {
+ /* Unconditionally log net taps. */
+ netif_notice(tp, link, netdev, "Promiscuous mode enabled\n");
+ ocp_data |= RCR_AM | RCR_AAP;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else if ((netdev_mc_count(netdev) > multicast_filter_limit) ||
+ (netdev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ ocp_data |= RCR_AM;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else {
+ struct netdev_hw_addr *ha;
+
+ mc_filter[1] = mc_filter[0] = 0;
+ netdev_for_each_mc_addr(ha, netdev) {
+ int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+ ocp_data |= RCR_AM;
+ }
+ }
+
+ tmp = mc_filter[0];
+ mc_filter[0] = __cpu_to_le32(swab32(mc_filter[1]));
+ mc_filter[1] = __cpu_to_le32(swab32(tmp));
+
+ pla_ocp_write(tp, PLA_MAR, BYTE_EN_DWORD, sizeof(u32) * 2, mc_filter);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+ netif_wake_queue(netdev);
+ kfree(mc_filter);
+}
+
+static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb,
+ struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ struct net_device_stats *stats = rtl8152_get_stats(netdev);
+ struct tx_desc *tx_desc;
+ int len, res;
+
+ netif_stop_queue(netdev);
+ len = skb->len;
+ if (skb_header_cloned(skb) || skb_headroom(skb) < sizeof(*tx_desc)) {
+ struct sk_buff *tx_skb;
+
+ tx_skb = skb_copy_expand(skb, sizeof(*tx_desc), 0, GFP_ATOMIC);
+ dev_kfree_skb_any(skb);
+ if (!tx_skb) {
+ stats->tx_dropped++;
+ netif_wake_queue(netdev);
+ return NETDEV_TX_OK;
+ }
+ skb = tx_skb;
+ }
+ tx_desc = (struct tx_desc *)skb_push(skb, sizeof(*tx_desc));
+ memset(tx_desc, 0, sizeof(*tx_desc));
+ tx_desc->opts1 = cpu_to_le32((len & TX_LEN_MASK) | TX_FS | TX_LS);
+ tp->tx_skb = skb;
+ skb_tx_timestamp(skb);
+ usb_fill_bulk_urb(tp->tx_urb, tp->udev, usb_sndbulkpipe(tp->udev, 2),
+ skb->data, skb->len,
+ (usb_complete_t)write_bulk_callback, tp);
+ res = usb_submit_urb(tp->tx_urb, GFP_ATOMIC);
+ if (res) {
+ /* Can we get/handle EPIPE here? */
+ if (res == -ENODEV) {
+ netif_device_detach(tp->netdev);
+ } else {
+ netif_warn(tp, tx_err, netdev,
+ "failed tx_urb %d\n", res);
+ stats->tx_errors++;
+ netif_start_queue(netdev);
+ }
+ } else {
+ stats->tx_packets++;
+ stats->tx_bytes += skb->len;
+ }
+
+ return NETDEV_TX_OK;
+}
+
+static void r8152b_reset_packet_filter(struct r8152 *tp)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_FMC);
+ ocp_data &= ~FMC_FCR_MCU_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
+ ocp_data |= FMC_FCR_MCU_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
+}
+
+static void rtl8152_nic_reset(struct r8152 *tp)
+{
+ int i;
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST);
+
+ for (i = 0; i < 1000; i++) {
+ if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST))
+ break;
+ udelay(100);
+ }
+}
+
+static inline u8 rtl8152_get_speed(struct r8152 *tp)
+{
+ return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
+}
+
+static int rtl8152_enable(struct r8152 *tp)
+{
+ u32 ocp_data;
+ u8 speed;
+
+ speed = rtl8152_get_speed(tp);
+ if (speed & _100bps) {
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
+ ocp_data &= ~EEEP_CR_EEEP_TX;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
+ } else {
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
+ ocp_data |= EEEP_CR_EEEP_TX;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
+ }
+
+ r8152b_reset_packet_filter(tp);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR);
+ ocp_data |= CR_RE | CR_TE;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
+ ocp_data &= ~RXDY_GATED_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
+
+ usb_fill_bulk_urb(tp->rx_urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
+ tp->rx_skb->data, RTL8152_RMS + sizeof(struct rx_desc),
+ (usb_complete_t)read_bulk_callback, tp);
+
+ return usb_submit_urb(tp->rx_urb, GFP_KERNEL);
+}
+
+static void rtl8152_disable(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data &= ~RCR_ACPT_ALL;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+
+ usb_kill_urb(tp->tx_urb);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
+ ocp_data |= RXDY_GATED_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if ((ocp_data & FIFO_EMPTY) == FIFO_EMPTY)
+ break;
+ mdelay(1);
+ }
+
+ for (i = 0; i < 1000; i++) {
+ if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0) & TCR0_TX_EMPTY)
+ break;
+ mdelay(1);
+ }
+
+ usb_kill_urb(tp->rx_urb);
+
+ rtl8152_nic_reset(tp);
+}
+
+static void r8152b_exit_oob(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data &= ~RCR_ACPT_ALL;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
+ ocp_data |= RXDY_GATED_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, 0x00);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ ocp_data &= ~NOW_IS_OOB;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
+ ocp_data &= ~MCU_BORW_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ mdelay(1);
+ }
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
+ ocp_data |= RE_INIT_LL;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ mdelay(1);
+ }
+
+ rtl8152_nic_reset(tp);
+
+ /* rx share fifo credit full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_DEV_STAT);
+ ocp_data &= STAT_SPEED_MASK;
+ if (ocp_data == STAT_SPEED_FULL) {
+ /* rx share fifo credit near full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
+ RXFIFO_THR2_FULL);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
+ RXFIFO_THR3_FULL);
+ } else {
+ /* rx share fifo credit near full threshold */
+ ocp_write_dword(t