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Diffstat (limited to 'qemu/roms/u-boot/drivers/usb/eth/smsc95xx.c')
-rw-r--r--qemu/roms/u-boot/drivers/usb/eth/smsc95xx.c897
1 files changed, 0 insertions, 897 deletions
diff --git a/qemu/roms/u-boot/drivers/usb/eth/smsc95xx.c b/qemu/roms/u-boot/drivers/usb/eth/smsc95xx.c
deleted file mode 100644
index 7bf0a3407..000000000
--- a/qemu/roms/u-boot/drivers/usb/eth/smsc95xx.c
+++ /dev/null
@@ -1,897 +0,0 @@
-/*
- * Copyright (c) 2011 The Chromium OS Authors.
- * Copyright (C) 2009 NVIDIA, Corporation
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <asm/unaligned.h>
-#include <common.h>
-#include <usb.h>
-#include <linux/mii.h>
-#include "usb_ether.h"
-#include <malloc.h>
-
-/* SMSC LAN95xx based USB 2.0 Ethernet Devices */
-
-/* LED defines */
-#define LED_GPIO_CFG (0x24)
-#define LED_GPIO_CFG_SPD_LED (0x01000000)
-#define LED_GPIO_CFG_LNK_LED (0x00100000)
-#define LED_GPIO_CFG_FDX_LED (0x00010000)
-
-/* Tx command words */
-#define TX_CMD_A_FIRST_SEG_ 0x00002000
-#define TX_CMD_A_LAST_SEG_ 0x00001000
-
-/* Rx status word */
-#define RX_STS_FL_ 0x3FFF0000 /* Frame Length */
-#define RX_STS_ES_ 0x00008000 /* Error Summary */
-
-/* SCSRs */
-#define ID_REV 0x00
-
-#define INT_STS 0x08
-
-#define TX_CFG 0x10
-#define TX_CFG_ON_ 0x00000004
-
-#define HW_CFG 0x14
-#define HW_CFG_BIR_ 0x00001000
-#define HW_CFG_RXDOFF_ 0x00000600
-#define HW_CFG_MEF_ 0x00000020
-#define HW_CFG_BCE_ 0x00000002
-#define HW_CFG_LRST_ 0x00000008
-
-#define PM_CTRL 0x20
-#define PM_CTL_PHY_RST_ 0x00000010
-
-#define AFC_CFG 0x2C
-
-/*
- * Hi watermark = 15.5Kb (~10 mtu pkts)
- * low watermark = 3k (~2 mtu pkts)
- * backpressure duration = ~ 350us
- * Apply FC on any frame.
- */
-#define AFC_CFG_DEFAULT 0x00F830A1
-
-#define E2P_CMD 0x30
-#define E2P_CMD_BUSY_ 0x80000000
-#define E2P_CMD_READ_ 0x00000000
-#define E2P_CMD_TIMEOUT_ 0x00000400
-#define E2P_CMD_LOADED_ 0x00000200
-#define E2P_CMD_ADDR_ 0x000001FF
-
-#define E2P_DATA 0x34
-
-#define BURST_CAP 0x38
-
-#define INT_EP_CTL 0x68
-#define INT_EP_CTL_PHY_INT_ 0x00008000
-
-#define BULK_IN_DLY 0x6C
-
-/* MAC CSRs */
-#define MAC_CR 0x100
-#define MAC_CR_MCPAS_ 0x00080000
-#define MAC_CR_PRMS_ 0x00040000
-#define MAC_CR_HPFILT_ 0x00002000
-#define MAC_CR_TXEN_ 0x00000008
-#define MAC_CR_RXEN_ 0x00000004
-
-#define ADDRH 0x104
-
-#define ADDRL 0x108
-
-#define MII_ADDR 0x114
-#define MII_WRITE_ 0x02
-#define MII_BUSY_ 0x01
-#define MII_READ_ 0x00 /* ~of MII Write bit */
-
-#define MII_DATA 0x118
-
-#define FLOW 0x11C
-
-#define VLAN1 0x120
-
-#define COE_CR 0x130
-#define Tx_COE_EN_ 0x00010000
-#define Rx_COE_EN_ 0x00000001
-
-/* Vendor-specific PHY Definitions */
-#define PHY_INT_SRC 29
-
-#define PHY_INT_MASK 30
-#define PHY_INT_MASK_ANEG_COMP_ ((u16)0x0040)
-#define PHY_INT_MASK_LINK_DOWN_ ((u16)0x0010)
-#define PHY_INT_MASK_DEFAULT_ (PHY_INT_MASK_ANEG_COMP_ | \
- PHY_INT_MASK_LINK_DOWN_)
-
-/* USB Vendor Requests */
-#define USB_VENDOR_REQUEST_WRITE_REGISTER 0xA0
-#define USB_VENDOR_REQUEST_READ_REGISTER 0xA1
-
-/* Some extra defines */
-#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)
-#define DEFAULT_FS_BURST_CAP_SIZE (6 * 1024 + 33 * FS_USB_PKT_SIZE)
-#define DEFAULT_BULK_IN_DELAY 0x00002000
-#define MAX_SINGLE_PACKET_SIZE 2048
-#define EEPROM_MAC_OFFSET 0x01
-#define SMSC95XX_INTERNAL_PHY_ID 1
-#define ETH_P_8021Q 0x8100 /* 802.1Q VLAN Extended Header */
-
-/* local defines */
-#define SMSC95XX_BASE_NAME "sms"
-#define USB_CTRL_SET_TIMEOUT 5000
-#define USB_CTRL_GET_TIMEOUT 5000
-#define USB_BULK_SEND_TIMEOUT 5000
-#define USB_BULK_RECV_TIMEOUT 5000
-
-#define AX_RX_URB_SIZE 2048
-#define PHY_CONNECT_TIMEOUT 5000
-
-#define TURBO_MODE
-
-/* local vars */
-static int curr_eth_dev; /* index for name of next device detected */
-
-/* driver private */
-struct smsc95xx_private {
- size_t rx_urb_size; /* maximum USB URB size */
- u32 mac_cr; /* MAC control register value */
- int have_hwaddr; /* 1 if we have a hardware MAC address */
-};
-
-/*
- * Smsc95xx infrastructure commands
- */
-static int smsc95xx_write_reg(struct ueth_data *dev, u32 index, u32 data)
-{
- int len;
- ALLOC_CACHE_ALIGN_BUFFER(u32, tmpbuf, 1);
-
- cpu_to_le32s(&data);
- tmpbuf[0] = data;
-
- len = usb_control_msg(dev->pusb_dev, usb_sndctrlpipe(dev->pusb_dev, 0),
- USB_VENDOR_REQUEST_WRITE_REGISTER,
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 00, index, tmpbuf, sizeof(data), USB_CTRL_SET_TIMEOUT);
- if (len != sizeof(data)) {
- debug("smsc95xx_write_reg failed: index=%d, data=%d, len=%d",
- index, data, len);
- return -1;
- }
- return 0;
-}
-
-static int smsc95xx_read_reg(struct ueth_data *dev, u32 index, u32 *data)
-{
- int len;
- ALLOC_CACHE_ALIGN_BUFFER(u32, tmpbuf, 1);
-
- len = usb_control_msg(dev->pusb_dev, usb_rcvctrlpipe(dev->pusb_dev, 0),
- USB_VENDOR_REQUEST_READ_REGISTER,
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 00, index, tmpbuf, sizeof(data), USB_CTRL_GET_TIMEOUT);
- *data = tmpbuf[0];
- if (len != sizeof(data)) {
- debug("smsc95xx_read_reg failed: index=%d, len=%d",
- index, len);
- return -1;
- }
-
- le32_to_cpus(data);
- return 0;
-}
-
-/* Loop until the read is completed with timeout */
-static int smsc95xx_phy_wait_not_busy(struct ueth_data *dev)
-{
- unsigned long start_time = get_timer(0);
- u32 val;
-
- do {
- smsc95xx_read_reg(dev, MII_ADDR, &val);
- if (!(val & MII_BUSY_))
- return 0;
- } while (get_timer(start_time) < 1 * 1000 * 1000);
-
- return -1;
-}
-
-static int smsc95xx_mdio_read(struct ueth_data *dev, int phy_id, int idx)
-{
- u32 val, addr;
-
- /* confirm MII not busy */
- if (smsc95xx_phy_wait_not_busy(dev)) {
- debug("MII is busy in smsc95xx_mdio_read\n");
- return -1;
- }
-
- /* set the address, index & direction (read from PHY) */
- addr = (phy_id << 11) | (idx << 6) | MII_READ_;
- smsc95xx_write_reg(dev, MII_ADDR, addr);
-
- if (smsc95xx_phy_wait_not_busy(dev)) {
- debug("Timed out reading MII reg %02X\n", idx);
- return -1;
- }
-
- smsc95xx_read_reg(dev, MII_DATA, &val);
-
- return (u16)(val & 0xFFFF);
-}
-
-static void smsc95xx_mdio_write(struct ueth_data *dev, int phy_id, int idx,
- int regval)
-{
- u32 val, addr;
-
- /* confirm MII not busy */
- if (smsc95xx_phy_wait_not_busy(dev)) {
- debug("MII is busy in smsc95xx_mdio_write\n");
- return;
- }
-
- val = regval;
- smsc95xx_write_reg(dev, MII_DATA, val);
-
- /* set the address, index & direction (write to PHY) */
- addr = (phy_id << 11) | (idx << 6) | MII_WRITE_;
- smsc95xx_write_reg(dev, MII_ADDR, addr);
-
- if (smsc95xx_phy_wait_not_busy(dev))
- debug("Timed out writing MII reg %02X\n", idx);
-}
-
-static int smsc95xx_eeprom_confirm_not_busy(struct ueth_data *dev)
-{
- unsigned long start_time = get_timer(0);
- u32 val;
-
- do {
- smsc95xx_read_reg(dev, E2P_CMD, &val);
- if (!(val & E2P_CMD_BUSY_))
- return 0;
- udelay(40);
- } while (get_timer(start_time) < 1 * 1000 * 1000);
-
- debug("EEPROM is busy\n");
- return -1;
-}
-
-static int smsc95xx_wait_eeprom(struct ueth_data *dev)
-{
- unsigned long start_time = get_timer(0);
- u32 val;
-
- do {
- smsc95xx_read_reg(dev, E2P_CMD, &val);
- if (!(val & E2P_CMD_BUSY_) || (val & E2P_CMD_TIMEOUT_))
- break;
- udelay(40);
- } while (get_timer(start_time) < 1 * 1000 * 1000);
-
- if (val & (E2P_CMD_TIMEOUT_ | E2P_CMD_BUSY_)) {
- debug("EEPROM read operation timeout\n");
- return -1;
- }
- return 0;
-}
-
-static int smsc95xx_read_eeprom(struct ueth_data *dev, u32 offset, u32 length,
- u8 *data)
-{
- u32 val;
- int i, ret;
-
- ret = smsc95xx_eeprom_confirm_not_busy(dev);
- if (ret)
- return ret;
-
- for (i = 0; i < length; i++) {
- val = E2P_CMD_BUSY_ | E2P_CMD_READ_ | (offset & E2P_CMD_ADDR_);
- smsc95xx_write_reg(dev, E2P_CMD, val);
-
- ret = smsc95xx_wait_eeprom(dev);
- if (ret < 0)
- return ret;
-
- smsc95xx_read_reg(dev, E2P_DATA, &val);
- data[i] = val & 0xFF;
- offset++;
- }
- return 0;
-}
-
-/*
- * mii_nway_restart - restart NWay (autonegotiation) for this interface
- *
- * Returns 0 on success, negative on error.
- */
-static int mii_nway_restart(struct ueth_data *dev)
-{
- int bmcr;
- int r = -1;
-
- /* if autoneg is off, it's an error */
- bmcr = smsc95xx_mdio_read(dev, dev->phy_id, MII_BMCR);
-
- if (bmcr & BMCR_ANENABLE) {
- bmcr |= BMCR_ANRESTART;
- smsc95xx_mdio_write(dev, dev->phy_id, MII_BMCR, bmcr);
- r = 0;
- }
- return r;
-}
-
-static int smsc95xx_phy_initialize(struct ueth_data *dev)
-{
- smsc95xx_mdio_write(dev, dev->phy_id, MII_BMCR, BMCR_RESET);
- smsc95xx_mdio_write(dev, dev->phy_id, MII_ADVERTISE,
- ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP |
- ADVERTISE_PAUSE_ASYM);
-
- /* read to clear */
- smsc95xx_mdio_read(dev, dev->phy_id, PHY_INT_SRC);
-
- smsc95xx_mdio_write(dev, dev->phy_id, PHY_INT_MASK,
- PHY_INT_MASK_DEFAULT_);
- mii_nway_restart(dev);
-
- debug("phy initialised succesfully\n");
- return 0;
-}
-
-static int smsc95xx_init_mac_address(struct eth_device *eth,
- struct ueth_data *dev)
-{
- /* try reading mac address from EEPROM */
- if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
- eth->enetaddr) == 0) {
- if (is_valid_ether_addr(eth->enetaddr)) {
- /* eeprom values are valid so use them */
- debug("MAC address read from EEPROM\n");
- return 0;
- }
- }
-
- /*
- * No eeprom, or eeprom values are invalid. Generating a random MAC
- * address is not safe. Just return an error.
- */
- return -1;
-}
-
-static int smsc95xx_write_hwaddr(struct eth_device *eth)
-{
- struct ueth_data *dev = (struct ueth_data *)eth->priv;
- struct smsc95xx_private *priv = dev->dev_priv;
- u32 addr_lo = __get_unaligned_le32(&eth->enetaddr[0]);
- u32 addr_hi = __get_unaligned_le16(&eth->enetaddr[4]);
- int ret;
-
- /* set hardware address */
- debug("** %s()\n", __func__);
- ret = smsc95xx_write_reg(dev, ADDRL, addr_lo);
- if (ret < 0)
- return ret;
-
- ret = smsc95xx_write_reg(dev, ADDRH, addr_hi);
- if (ret < 0)
- return ret;
-
- debug("MAC %pM\n", eth->enetaddr);
- priv->have_hwaddr = 1;
- return 0;
-}
-
-/* Enable or disable Tx & Rx checksum offload engines */
-static int smsc95xx_set_csums(struct ueth_data *dev,
- int use_tx_csum, int use_rx_csum)
-{
- u32 read_buf;
- int ret = smsc95xx_read_reg(dev, COE_CR, &read_buf);
- if (ret < 0)
- return ret;
-
- if (use_tx_csum)
- read_buf |= Tx_COE_EN_;
- else
- read_buf &= ~Tx_COE_EN_;
-
- if (use_rx_csum)
- read_buf |= Rx_COE_EN_;
- else
- read_buf &= ~Rx_COE_EN_;
-
- ret = smsc95xx_write_reg(dev, COE_CR, read_buf);
- if (ret < 0)
- return ret;
-
- debug("COE_CR = 0x%08x\n", read_buf);
- return 0;
-}
-
-static void smsc95xx_set_multicast(struct ueth_data *dev)
-{
- struct smsc95xx_private *priv = dev->dev_priv;
-
- /* No multicast in u-boot */
- priv->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
-}
-
-/* starts the TX path */
-static void smsc95xx_start_tx_path(struct ueth_data *dev)
-{
- struct smsc95xx_private *priv = dev->dev_priv;
- u32 reg_val;
-
- /* Enable Tx at MAC */
- priv->mac_cr |= MAC_CR_TXEN_;
-
- smsc95xx_write_reg(dev, MAC_CR, priv->mac_cr);
-
- /* Enable Tx at SCSRs */
- reg_val = TX_CFG_ON_;
- smsc95xx_write_reg(dev, TX_CFG, reg_val);
-}
-
-/* Starts the Receive path */
-static void smsc95xx_start_rx_path(struct ueth_data *dev)
-{
- struct smsc95xx_private *priv = dev->dev_priv;
-
- priv->mac_cr |= MAC_CR_RXEN_;
- smsc95xx_write_reg(dev, MAC_CR, priv->mac_cr);
-}
-
-/*
- * Smsc95xx callbacks
- */
-static int smsc95xx_init(struct eth_device *eth, bd_t *bd)
-{
- int ret;
- u32 write_buf;
- u32 read_buf;
- u32 burst_cap;
- int timeout;
- struct ueth_data *dev = (struct ueth_data *)eth->priv;
- struct smsc95xx_private *priv =
- (struct smsc95xx_private *)dev->dev_priv;
-#define TIMEOUT_RESOLUTION 50 /* ms */
- int link_detected;
-
- debug("** %s()\n", __func__);
- dev->phy_id = SMSC95XX_INTERNAL_PHY_ID; /* fixed phy id */
-
- write_buf = HW_CFG_LRST_;
- ret = smsc95xx_write_reg(dev, HW_CFG, write_buf);
- if (ret < 0)
- return ret;
-
- timeout = 0;
- do {
- ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
- if (ret < 0)
- return ret;
- udelay(10 * 1000);
- timeout++;
- } while ((read_buf & HW_CFG_LRST_) && (timeout < 100));
-
- if (timeout >= 100) {
- debug("timeout waiting for completion of Lite Reset\n");
- return -1;
- }
-
- write_buf = PM_CTL_PHY_RST_;
- ret = smsc95xx_write_reg(dev, PM_CTRL, write_buf);
- if (ret < 0)
- return ret;
-
- timeout = 0;
- do {
- ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf);
- if (ret < 0)
- return ret;
- udelay(10 * 1000);
- timeout++;
- } while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100));
- if (timeout >= 100) {
- debug("timeout waiting for PHY Reset\n");
- return -1;
- }
- if (!priv->have_hwaddr && smsc95xx_init_mac_address(eth, dev) == 0)
- priv->have_hwaddr = 1;
- if (!priv->have_hwaddr) {
- puts("Error: SMSC95xx: No MAC address set - set usbethaddr\n");
- return -1;
- }
- if (smsc95xx_write_hwaddr(eth) < 0)
- return -1;
-
- ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
- if (ret < 0)
- return ret;
- debug("Read Value from HW_CFG : 0x%08x\n", read_buf);
-
- read_buf |= HW_CFG_BIR_;
- ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
- if (ret < 0)
- return ret;
-
- ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
- if (ret < 0)
- return ret;
- debug("Read Value from HW_CFG after writing "
- "HW_CFG_BIR_: 0x%08x\n", read_buf);
-
-#ifdef TURBO_MODE
- if (dev->pusb_dev->speed == USB_SPEED_HIGH) {
- burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
- priv->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
- } else {
- burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
- priv->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
- }
-#else
- burst_cap = 0;
- priv->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
-#endif
- debug("rx_urb_size=%ld\n", (ulong)priv->rx_urb_size);
-
- ret = smsc95xx_write_reg(dev, BURST_CAP, burst_cap);
- if (ret < 0)
- return ret;
-
- ret = smsc95xx_read_reg(dev, BURST_CAP, &read_buf);
- if (ret < 0)
- return ret;
- debug("Read Value from BURST_CAP after writing: 0x%08x\n", read_buf);
-
- read_buf = DEFAULT_BULK_IN_DELAY;
- ret = smsc95xx_write_reg(dev, BULK_IN_DLY, read_buf);
- if (ret < 0)
- return ret;
-
- ret = smsc95xx_read_reg(dev, BULK_IN_DLY, &read_buf);
- if (ret < 0)
- return ret;
- debug("Read Value from BULK_IN_DLY after writing: "
- "0x%08x\n", read_buf);
-
- ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
- if (ret < 0)
- return ret;
- debug("Read Value from HW_CFG: 0x%08x\n", read_buf);
-
-#ifdef TURBO_MODE
- read_buf |= (HW_CFG_MEF_ | HW_CFG_BCE_);
-#endif
- read_buf &= ~HW_CFG_RXDOFF_;
-
-#define NET_IP_ALIGN 0
- read_buf |= NET_IP_ALIGN << 9;
-
- ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
- if (ret < 0)
- return ret;
-
- ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
- if (ret < 0)
- return ret;
- debug("Read Value from HW_CFG after writing: 0x%08x\n", read_buf);
-
- write_buf = 0xFFFFFFFF;
- ret = smsc95xx_write_reg(dev, INT_STS, write_buf);
- if (ret < 0)
- return ret;
-
- ret = smsc95xx_read_reg(dev, ID_REV, &read_buf);
- if (ret < 0)
- return ret;
- debug("ID_REV = 0x%08x\n", read_buf);
-
- /* Configure GPIO pins as LED outputs */
- write_buf = LED_GPIO_CFG_SPD_LED | LED_GPIO_CFG_LNK_LED |
- LED_GPIO_CFG_FDX_LED;
- ret = smsc95xx_write_reg(dev, LED_GPIO_CFG, write_buf);
- if (ret < 0)
- return ret;
- debug("LED_GPIO_CFG set\n");
-
- /* Init Tx */
- write_buf = 0;
- ret = smsc95xx_write_reg(dev, FLOW, write_buf);
- if (ret < 0)
- return ret;
-
- read_buf = AFC_CFG_DEFAULT;
- ret = smsc95xx_write_reg(dev, AFC_CFG, read_buf);
- if (ret < 0)
- return ret;
-
- ret = smsc95xx_read_reg(dev, MAC_CR, &priv->mac_cr);
- if (ret < 0)
- return ret;
-
- /* Init Rx. Set Vlan */
- write_buf = (u32)ETH_P_8021Q;
- ret = smsc95xx_write_reg(dev, VLAN1, write_buf);
- if (ret < 0)
- return ret;
-
- /* Disable checksum offload engines */
- ret = smsc95xx_set_csums(dev, 0, 0);
- if (ret < 0) {
- debug("Failed to set csum offload: %d\n", ret);
- return ret;
- }
- smsc95xx_set_multicast(dev);
-
- if (smsc95xx_phy_initialize(dev) < 0)
- return -1;
- ret = smsc95xx_read_reg(dev, INT_EP_CTL, &read_buf);
- if (ret < 0)
- return ret;
-
- /* enable PHY interrupts */
- read_buf |= INT_EP_CTL_PHY_INT_;
-
- ret = smsc95xx_write_reg(dev, INT_EP_CTL, read_buf);
- if (ret < 0)
- return ret;
-
- smsc95xx_start_tx_path(dev);
- smsc95xx_start_rx_path(dev);
-
- timeout = 0;
- do {
- link_detected = smsc95xx_mdio_read(dev, dev->phy_id, MII_BMSR)
- & BMSR_LSTATUS;
- if (!link_detected) {
- if (timeout == 0)
- printf("Waiting for Ethernet connection... ");
- udelay(TIMEOUT_RESOLUTION * 1000);
- timeout += TIMEOUT_RESOLUTION;
- }
- } while (!link_detected && timeout < PHY_CONNECT_TIMEOUT);
- if (link_detected) {
- if (timeout != 0)
- printf("done.\n");
- } else {
- printf("unable to connect.\n");
- return -1;
- }
- return 0;
-}
-
-static int smsc95xx_send(struct eth_device *eth, void* packet, int length)
-{
- struct ueth_data *dev = (struct ueth_data *)eth->priv;
- int err;
- int actual_len;
- u32 tx_cmd_a;
- u32 tx_cmd_b;
- ALLOC_CACHE_ALIGN_BUFFER(unsigned char, msg,
- PKTSIZE + sizeof(tx_cmd_a) + sizeof(tx_cmd_b));
-
- debug("** %s(), len %d, buf %#x\n", __func__, length, (int)msg);
- if (length > PKTSIZE)
- return -1;
-
- tx_cmd_a = (u32)length | TX_CMD_A_FIRST_SEG_ | TX_CMD_A_LAST_SEG_;
- tx_cmd_b = (u32)length;
- cpu_to_le32s(&tx_cmd_a);
- cpu_to_le32s(&tx_cmd_b);
-
- /* prepend cmd_a and cmd_b */
- memcpy(msg, &tx_cmd_a, sizeof(tx_cmd_a));
- memcpy(msg + sizeof(tx_cmd_a), &tx_cmd_b, sizeof(tx_cmd_b));
- memcpy(msg + sizeof(tx_cmd_a) + sizeof(tx_cmd_b), (void *)packet,
- length);
- err = usb_bulk_msg(dev->pusb_dev,
- usb_sndbulkpipe(dev->pusb_dev, dev->ep_out),
- (void *)msg,
- length + sizeof(tx_cmd_a) + sizeof(tx_cmd_b),
- &actual_len,
- USB_BULK_SEND_TIMEOUT);
- debug("Tx: len = %u, actual = %u, err = %d\n",
- length + sizeof(tx_cmd_a) + sizeof(tx_cmd_b),
- actual_len, err);
- return err;
-}
-
-static int smsc95xx_recv(struct eth_device *eth)
-{
- struct ueth_data *dev = (struct ueth_data *)eth->priv;
- DEFINE_CACHE_ALIGN_BUFFER(unsigned char, recv_buf, AX_RX_URB_SIZE);
- unsigned char *buf_ptr;
- int err;
- int actual_len;
- u32 packet_len;
- int cur_buf_align;
-
- debug("** %s()\n", __func__);
- err = usb_bulk_msg(dev->pusb_dev,
- usb_rcvbulkpipe(dev->pusb_dev, dev->ep_in),
- (void *)recv_buf,
- AX_RX_URB_SIZE,
- &actual_len,
- USB_BULK_RECV_TIMEOUT);
- debug("Rx: len = %u, actual = %u, err = %d\n", AX_RX_URB_SIZE,
- actual_len, err);
- if (err != 0) {
- debug("Rx: failed to receive\n");
- return -1;
- }
- if (actual_len > AX_RX_URB_SIZE) {
- debug("Rx: received too many bytes %d\n", actual_len);
- return -1;
- }
-
- buf_ptr = recv_buf;
- while (actual_len > 0) {
- /*
- * 1st 4 bytes contain the length of the actual data plus error
- * info. Extract data length.
- */
- if (actual_len < sizeof(packet_len)) {
- debug("Rx: incomplete packet length\n");
- return -1;
- }
- memcpy(&packet_len, buf_ptr, sizeof(packet_len));
- le32_to_cpus(&packet_len);
- if (packet_len & RX_STS_ES_) {
- debug("Rx: Error header=%#x", packet_len);
- return -1;
- }
- packet_len = ((packet_len & RX_STS_FL_) >> 16);
-
- if (packet_len > actual_len - sizeof(packet_len)) {
- debug("Rx: too large packet: %d\n", packet_len);
- return -1;
- }
-
- /* Notify net stack */
- NetReceive(buf_ptr + sizeof(packet_len), packet_len - 4);
-
- /* Adjust for next iteration */
- actual_len -= sizeof(packet_len) + packet_len;
- buf_ptr += sizeof(packet_len) + packet_len;
- cur_buf_align = (int)buf_ptr - (int)recv_buf;
-
- if (cur_buf_align & 0x03) {
- int align = 4 - (cur_buf_align & 0x03);
-
- actual_len -= align;
- buf_ptr += align;
- }
- }
- return err;
-}
-
-static void smsc95xx_halt(struct eth_device *eth)
-{
- debug("** %s()\n", __func__);
-}
-
-/*
- * SMSC probing functions
- */
-void smsc95xx_eth_before_probe(void)
-{
- curr_eth_dev = 0;
-}
-
-struct smsc95xx_dongle {
- unsigned short vendor;
- unsigned short product;
-};
-
-static const struct smsc95xx_dongle smsc95xx_dongles[] = {
- { 0x0424, 0xec00 }, /* LAN9512/LAN9514 Ethernet */
- { 0x0424, 0x9500 }, /* LAN9500 Ethernet */
- { 0x0424, 0x9730 }, /* LAN9730 Ethernet (HSIC) */
- { 0x0424, 0x9900 }, /* SMSC9500 USB Ethernet Device (SAL10) */
- { 0x0000, 0x0000 } /* END - Do not remove */
-};
-
-/* Probe to see if a new device is actually an SMSC device */
-int smsc95xx_eth_probe(struct usb_device *dev, unsigned int ifnum,
- struct ueth_data *ss)
-{
- struct usb_interface *iface;
- struct usb_interface_descriptor *iface_desc;
- int i;
-
- /* let's examine the device now */
- iface = &dev->config.if_desc[ifnum];
- iface_desc = &dev->config.if_desc[ifnum].desc;
-
- for (i = 0; smsc95xx_dongles[i].vendor != 0; i++) {
- if (dev->descriptor.idVendor == smsc95xx_dongles[i].vendor &&
- dev->descriptor.idProduct == smsc95xx_dongles[i].product)
- /* Found a supported dongle */
- break;
- }
- if (smsc95xx_dongles[i].vendor == 0)
- return 0;
-
- /* At this point, we know we've got a live one */
- debug("\n\nUSB Ethernet device detected\n");
- memset(ss, '\0', sizeof(struct ueth_data));
-
- /* Initialize the ueth_data structure with some useful info */
- ss->ifnum = ifnum;
- ss->pusb_dev = dev;
- ss->subclass = iface_desc->bInterfaceSubClass;
- ss->protocol = iface_desc->bInterfaceProtocol;
-
- /*
- * We are expecting a minimum of 3 endpoints - in, out (bulk), and int.
- * We will ignore any others.
- */
- for (i = 0; i < iface_desc->bNumEndpoints; i++) {
- /* is it an BULK endpoint? */
- if ((iface->ep_desc[i].bmAttributes &
- USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) {
- if (iface->ep_desc[i].bEndpointAddress & USB_DIR_IN)
- ss->ep_in =
- iface->ep_desc[i].bEndpointAddress &
- USB_ENDPOINT_NUMBER_MASK;
- else
- ss->ep_out =
- iface->ep_desc[i].bEndpointAddress &
- USB_ENDPOINT_NUMBER_MASK;
- }
-
- /* is it an interrupt endpoint? */
- if ((iface->ep_desc[i].bmAttributes &
- USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) {
- ss->ep_int = iface->ep_desc[i].bEndpointAddress &
- USB_ENDPOINT_NUMBER_MASK;
- ss->irqinterval = iface->ep_desc[i].bInterval;
- }
- }
- debug("Endpoints In %d Out %d Int %d\n",
- ss->ep_in, ss->ep_out, ss->ep_int);
-
- /* Do some basic sanity checks, and bail if we find a problem */
- if (usb_set_interface(dev, iface_desc->bInterfaceNumber, 0) ||
- !ss->ep_in || !ss->ep_out || !ss->ep_int) {
- debug("Problems with device\n");
- return 0;
- }
- dev->privptr = (void *)ss;
-
- /* alloc driver private */
- ss->dev_priv = calloc(1, sizeof(struct smsc95xx_private));
- if (!ss->dev_priv)
- return 0;
-
- return 1;
-}
-
-int smsc95xx_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
- struct eth_device *eth)
-{
- debug("** %s()\n", __func__);
- if (!eth) {
- debug("%s: missing parameter.\n", __func__);
- return 0;
- }
- sprintf(eth->name, "%s%d", SMSC95XX_BASE_NAME, curr_eth_dev++);
- eth->init = smsc95xx_init;
- eth->send = smsc95xx_send;
- eth->recv = smsc95xx_recv;
- eth->halt = smsc95xx_halt;
- eth->write_hwaddr = smsc95xx_write_hwaddr;
- eth->priv = ss;
- return 1;
-}