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Diffstat (limited to 'drivers/usb/net/mcs7830.c')
-rw-r--r--drivers/usb/net/mcs7830.c534
1 files changed, 0 insertions, 534 deletions
diff --git a/drivers/usb/net/mcs7830.c b/drivers/usb/net/mcs7830.c
deleted file mode 100644
index 6240b97..0000000
--- a/drivers/usb/net/mcs7830.c
+++ /dev/null
@@ -1,534 +0,0 @@
-/*
- * MosChips MCS7830 based USB 2.0 Ethernet Devices
- *
- * based on usbnet.c, asix.c and the vendor provided mcs7830 driver
- *
- * Copyright (C) 2006 Arnd Bergmann <arnd@arndb.de>
- * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
- * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
- * Copyright (c) 2002-2003 TiVo Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/crc32.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/init.h>
-#include <linux/mii.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/usb.h>
-
-#include "usbnet.h"
-
-/* requests */
-#define MCS7830_RD_BMREQ (USB_DIR_IN | USB_TYPE_VENDOR | \
- USB_RECIP_DEVICE)
-#define MCS7830_WR_BMREQ (USB_DIR_OUT | USB_TYPE_VENDOR | \
- USB_RECIP_DEVICE)
-#define MCS7830_RD_BREQ 0x0E
-#define MCS7830_WR_BREQ 0x0D
-
-#define MCS7830_CTRL_TIMEOUT 1000
-#define MCS7830_MAX_MCAST 64
-
-#define MCS7830_VENDOR_ID 0x9710
-#define MCS7830_PRODUCT_ID 0x7830
-
-#define MCS7830_MII_ADVERTISE (ADVERTISE_PAUSE_CAP | ADVERTISE_100FULL | \
- ADVERTISE_100HALF | ADVERTISE_10FULL | \
- ADVERTISE_10HALF | ADVERTISE_CSMA)
-
-/* HIF_REG_XX coressponding index value */
-enum {
- HIF_REG_MULTICAST_HASH = 0x00,
- HIF_REG_PACKET_GAP1 = 0x08,
- HIF_REG_PACKET_GAP2 = 0x09,
- HIF_REG_PHY_DATA = 0x0a,
- HIF_REG_PHY_CMD1 = 0x0c,
- HIF_REG_PHY_CMD1_READ = 0x40,
- HIF_REG_PHY_CMD1_WRITE = 0x20,
- HIF_REG_PHY_CMD1_PHYADDR = 0x01,
- HIF_REG_PHY_CMD2 = 0x0d,
- HIF_REG_PHY_CMD2_PEND_FLAG_BIT = 0x80,
- HIF_REG_PHY_CMD2_READY_FLAG_BIT = 0x40,
- HIF_REG_CONFIG = 0x0e,
- HIF_REG_CONFIG_CFG = 0x80,
- HIF_REG_CONFIG_SPEED100 = 0x40,
- HIF_REG_CONFIG_FULLDUPLEX_ENABLE = 0x20,
- HIF_REG_CONFIG_RXENABLE = 0x10,
- HIF_REG_CONFIG_TXENABLE = 0x08,
- HIF_REG_CONFIG_SLEEPMODE = 0x04,
- HIF_REG_CONFIG_ALLMULTICAST = 0x02,
- HIF_REG_CONFIG_PROMISCIOUS = 0x01,
- HIF_REG_ETHERNET_ADDR = 0x0f,
- HIF_REG_22 = 0x15,
- HIF_REG_PAUSE_THRESHOLD = 0x16,
- HIF_REG_PAUSE_THRESHOLD_DEFAULT = 0,
-};
-
-struct mcs7830_data {
- u8 multi_filter[8];
- u8 config;
-};
-
-static const char driver_name[] = "MOSCHIP usb-ethernet driver";
-
-static int mcs7830_get_reg(struct usbnet *dev, u16 index, u16 size, void *data)
-{
- struct usb_device *xdev = dev->udev;
- int ret;
-
- ret = usb_control_msg(xdev, usb_rcvctrlpipe(xdev, 0), MCS7830_RD_BREQ,
- MCS7830_RD_BMREQ, 0x0000, index, data,
- size, msecs_to_jiffies(MCS7830_CTRL_TIMEOUT));
- return ret;
-}
-
-static int mcs7830_set_reg(struct usbnet *dev, u16 index, u16 size, void *data)
-{
- struct usb_device *xdev = dev->udev;
- int ret;
-
- ret = usb_control_msg(xdev, usb_sndctrlpipe(xdev, 0), MCS7830_WR_BREQ,
- MCS7830_WR_BMREQ, 0x0000, index, data,
- size, msecs_to_jiffies(MCS7830_CTRL_TIMEOUT));
- return ret;
-}
-
-static void mcs7830_async_cmd_callback(struct urb *urb)
-{
- struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
-
- if (urb->status < 0)
- printk(KERN_DEBUG "mcs7830_async_cmd_callback() failed with %d",
- urb->status);
-
- kfree(req);
- usb_free_urb(urb);
-}
-
-static void mcs7830_set_reg_async(struct usbnet *dev, u16 index, u16 size, void *data)
-{
- struct usb_ctrlrequest *req;
- int ret;
- struct urb *urb;
-
- urb = usb_alloc_urb(0, GFP_ATOMIC);
- if (!urb) {
- dev_dbg(&dev->udev->dev, "Error allocating URB "
- "in write_cmd_async!");
- return;
- }
-
- req = kmalloc(sizeof *req, GFP_ATOMIC);
- if (!req) {
- dev_err(&dev->udev->dev, "Failed to allocate memory for "
- "control request");
- goto out;
- }
- req->bRequestType = MCS7830_WR_BMREQ;
- req->bRequest = MCS7830_WR_BREQ;
- req->wValue = 0;
- req->wIndex = cpu_to_le16(index);
- req->wLength = cpu_to_le16(size);
-
- usb_fill_control_urb(urb, dev->udev,
- usb_sndctrlpipe(dev->udev, 0),
- (void *)req, data, size,
- mcs7830_async_cmd_callback, req);
-
- ret = usb_submit_urb(urb, GFP_ATOMIC);
- if (ret < 0) {
- dev_err(&dev->udev->dev, "Error submitting the control "
- "message: ret=%d", ret);
- goto out;
- }
- return;
-out:
- kfree(req);
- usb_free_urb(urb);
-}
-
-static int mcs7830_get_address(struct usbnet *dev)
-{
- int ret;
- ret = mcs7830_get_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN,
- dev->net->dev_addr);
- if (ret < 0)
- return ret;
- return 0;
-}
-
-static int mcs7830_read_phy(struct usbnet *dev, u8 index)
-{
- int ret;
- int i;
- __le16 val;
-
- u8 cmd[2] = {
- HIF_REG_PHY_CMD1_READ | HIF_REG_PHY_CMD1_PHYADDR,
- HIF_REG_PHY_CMD2_PEND_FLAG_BIT | index,
- };
-
- mutex_lock(&dev->phy_mutex);
- /* write the MII command */
- ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd);
- if (ret < 0)
- goto out;
-
- /* wait for the data to become valid, should be within < 1ms */
- for (i = 0; i < 10; i++) {
- ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd);
- if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT))
- break;
- ret = -EIO;
- msleep(1);
- }
- if (ret < 0)
- goto out;
-
- /* read actual register contents */
- ret = mcs7830_get_reg(dev, HIF_REG_PHY_DATA, 2, &val);
- if (ret < 0)
- goto out;
- ret = le16_to_cpu(val);
- dev_dbg(&dev->udev->dev, "read PHY reg %02x: %04x (%d tries)\n",
- index, val, i);
-out:
- mutex_unlock(&dev->phy_mutex);
- return ret;
-}
-
-static int mcs7830_write_phy(struct usbnet *dev, u8 index, u16 val)
-{
- int ret;
- int i;
- __le16 le_val;
-
- u8 cmd[2] = {
- HIF_REG_PHY_CMD1_WRITE | HIF_REG_PHY_CMD1_PHYADDR,
- HIF_REG_PHY_CMD2_PEND_FLAG_BIT | (index & 0x1F),
- };
-
- mutex_lock(&dev->phy_mutex);
-
- /* write the new register contents */
- le_val = cpu_to_le16(val);
- ret = mcs7830_set_reg(dev, HIF_REG_PHY_DATA, 2, &le_val);
- if (ret < 0)
- goto out;
-
- /* write the MII command */
- ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd);
- if (ret < 0)
- goto out;
-
- /* wait for the command to be accepted by the PHY */
- for (i = 0; i < 10; i++) {
- ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd);
- if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT))
- break;
- ret = -EIO;
- msleep(1);
- }
- if (ret < 0)
- goto out;
-
- ret = 0;
- dev_dbg(&dev->udev->dev, "write PHY reg %02x: %04x (%d tries)\n",
- index, val, i);
-out:
- mutex_unlock(&dev->phy_mutex);
- return ret;
-}
-
-/*
- * This algorithm comes from the original mcs7830 version 1.4 driver,
- * not sure if it is needed.
- */
-static int mcs7830_set_autoneg(struct usbnet *dev, int ptrUserPhyMode)
-{
- int ret;
- /* Enable all media types */
- ret = mcs7830_write_phy(dev, MII_ADVERTISE, MCS7830_MII_ADVERTISE);
-
- /* First reset BMCR */
- if (!ret)
- ret = mcs7830_write_phy(dev, MII_BMCR, 0x0000);
- /* Enable Auto Neg */
- if (!ret)
- ret = mcs7830_write_phy(dev, MII_BMCR, BMCR_ANENABLE);
- /* Restart Auto Neg (Keep the Enable Auto Neg Bit Set) */
- if (!ret)
- ret = mcs7830_write_phy(dev, MII_BMCR,
- BMCR_ANENABLE | BMCR_ANRESTART );
- return ret < 0 ? : 0;
-}
-
-
-/*
- * if we can read register 22, the chip revision is C or higher
- */
-static int mcs7830_get_rev(struct usbnet *dev)
-{
- u8 dummy[2];
- int ret;
- ret = mcs7830_get_reg(dev, HIF_REG_22, 2, dummy);
- if (ret > 0)
- return 2; /* Rev C or later */
- return 1; /* earlier revision */
-}
-
-/*
- * On rev. C we need to set the pause threshold
- */
-static void mcs7830_rev_C_fixup(struct usbnet *dev)
-{
- u8 pause_threshold = HIF_REG_PAUSE_THRESHOLD_DEFAULT;
- int retry;
-
- for (retry = 0; retry < 2; retry++) {
- if (mcs7830_get_rev(dev) == 2) {
- dev_info(&dev->udev->dev, "applying rev.C fixup\n");
- mcs7830_set_reg(dev, HIF_REG_PAUSE_THRESHOLD,
- 1, &pause_threshold);
- }
- msleep(1);
- }
-}
-
-static int mcs7830_init_dev(struct usbnet *dev)
-{
- int ret;
- int retry;
-
- /* Read MAC address from EEPROM */
- ret = -EINVAL;
- for (retry = 0; retry < 5 && ret; retry++)
- ret = mcs7830_get_address(dev);
- if (ret) {
- dev_warn(&dev->udev->dev, "Cannot read MAC address\n");
- goto out;
- }
-
- /* Set up PHY */
- ret = mcs7830_set_autoneg(dev, 0);
- if (ret) {
- dev_info(&dev->udev->dev, "Cannot set autoneg\n");
- goto out;
- }
-
- mcs7830_rev_C_fixup(dev);
- ret = 0;
-out:
- return ret;
-}
-
-static int mcs7830_mdio_read(struct net_device *netdev, int phy_id,
- int location)
-{
- struct usbnet *dev = netdev->priv;
- return mcs7830_read_phy(dev, location);
-}
-
-static void mcs7830_mdio_write(struct net_device *netdev, int phy_id,
- int location, int val)
-{
- struct usbnet *dev = netdev->priv;
- mcs7830_write_phy(dev, location, val);
-}
-
-static int mcs7830_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
-{
- struct usbnet *dev = netdev_priv(net);
- return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
-}
-
-/* credits go to asix_set_multicast */
-static void mcs7830_set_multicast(struct net_device *net)
-{
- struct usbnet *dev = netdev_priv(net);
- struct mcs7830_data *data = (struct mcs7830_data *)&dev->data;
-
- data->config = HIF_REG_CONFIG_TXENABLE;
-
- /* this should not be needed, but it doesn't work otherwise */
- data->config |= HIF_REG_CONFIG_ALLMULTICAST;
-
- if (net->flags & IFF_PROMISC) {
- data->config |= HIF_REG_CONFIG_PROMISCIOUS;
- } else if (net->flags & IFF_ALLMULTI
- || net->mc_count > MCS7830_MAX_MCAST) {
- data->config |= HIF_REG_CONFIG_ALLMULTICAST;
- } else if (net->mc_count == 0) {
- /* just broadcast and directed */
- } else {
- /* We use the 20 byte dev->data
- * for our 8 byte filter buffer
- * to avoid allocating memory that
- * is tricky to free later */
- struct dev_mc_list *mc_list = net->mc_list;
- u32 crc_bits;
- int i;
-
- memset(data->multi_filter, 0, sizeof data->multi_filter);
-
- /* Build the multicast hash filter. */
- for (i = 0; i < net->mc_count; i++) {
- crc_bits = ether_crc(ETH_ALEN, mc_list->dmi_addr) >> 26;
- data->multi_filter[crc_bits >> 3] |= 1 << (crc_bits & 7);
- mc_list = mc_list->next;
- }
-
- mcs7830_set_reg_async(dev, HIF_REG_MULTICAST_HASH,
- sizeof data->multi_filter,
- data->multi_filter);
- }
-
- mcs7830_set_reg_async(dev, HIF_REG_CONFIG, 1, &data->config);
-}
-
-static int mcs7830_get_regs_len(struct net_device *net)
-{
- struct usbnet *dev = netdev_priv(net);
-
- switch (mcs7830_get_rev(dev)) {
- case 1:
- return 21;
- case 2:
- return 32;
- }
- return 0;
-}
-
-static void mcs7830_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *drvinfo)
-{
- usbnet_get_drvinfo(net, drvinfo);
- drvinfo->regdump_len = mcs7830_get_regs_len(net);
-}
-
-static void mcs7830_get_regs(struct net_device *net, struct ethtool_regs *regs, void *data)
-{
- struct usbnet *dev = netdev_priv(net);
-
- regs->version = mcs7830_get_rev(dev);
- mcs7830_get_reg(dev, 0, regs->len, data);
-}
-
-static struct ethtool_ops mcs7830_ethtool_ops = {
- .get_drvinfo = mcs7830_get_drvinfo,
- .get_regs_len = mcs7830_get_regs_len,
- .get_regs = mcs7830_get_regs,
-
- /* common usbnet calls */
- .get_link = usbnet_get_link,
- .get_msglevel = usbnet_get_msglevel,
- .set_msglevel = usbnet_set_msglevel,
- .get_settings = usbnet_get_settings,
- .set_settings = usbnet_set_settings,
- .nway_reset = usbnet_nway_reset,
-};
-
-static int mcs7830_bind(struct usbnet *dev, struct usb_interface *udev)
-{
- struct net_device *net = dev->net;
- int ret;
-
- ret = mcs7830_init_dev(dev);
- if (ret)
- goto out;
-
- net->do_ioctl = mcs7830_ioctl;
- net->ethtool_ops = &mcs7830_ethtool_ops;
- net->set_multicast_list = mcs7830_set_multicast;
- mcs7830_set_multicast(net);
-
- /* reserve space for the status byte on rx */
- dev->rx_urb_size = ETH_FRAME_LEN + 1;
-
- dev->mii.mdio_read = mcs7830_mdio_read;
- dev->mii.mdio_write = mcs7830_mdio_write;
- dev->mii.dev = net;
- dev->mii.phy_id_mask = 0x3f;
- dev->mii.reg_num_mask = 0x1f;
- dev->mii.phy_id = *((u8 *) net->dev_addr + 1);
-
- ret = usbnet_get_endpoints(dev, udev);
-out:
- return ret;
-}
-
-/* The chip always appends a status bytes that we need to strip */
-static int mcs7830_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
-{
- u8 status;
-
- if (skb->len == 0) {
- dev_err(&dev->udev->dev, "unexpected empty rx frame\n");
- return 0;
- }
-
- skb_trim(skb, skb->len - 1);
- status = skb->data[skb->len];
-
- if (status != 0x20)
- dev_dbg(&dev->udev->dev, "rx fixup status %x\n", status);
-
- return skb->len > 0;
-}
-
-static const struct driver_info moschip_info = {
- .description = "MOSCHIP 7830 usb-NET adapter",
- .bind = mcs7830_bind,
- .rx_fixup = mcs7830_rx_fixup,
- .flags = FLAG_ETHER,
- .in = 1,
- .out = 2,
-};
-
-static const struct usb_device_id products[] = {
- {
- USB_DEVICE(MCS7830_VENDOR_ID, MCS7830_PRODUCT_ID),
- .driver_info = (unsigned long) &moschip_info,
- },
- {},
-};
-MODULE_DEVICE_TABLE(usb, products);
-
-static struct usb_driver mcs7830_driver = {
- .name = driver_name,
- .id_table = products,
- .probe = usbnet_probe,
- .disconnect = usbnet_disconnect,
- .suspend = usbnet_suspend,
- .resume = usbnet_resume,
-};
-
-static int __init mcs7830_init(void)
-{
- return usb_register(&mcs7830_driver);
-}
-module_init(mcs7830_init);
-
-static void __exit mcs7830_exit(void)
-{
- usb_deregister(&mcs7830_driver);
-}
-module_exit(mcs7830_exit);
-
-MODULE_DESCRIPTION("USB to network adapter MCS7830)");
-MODULE_LICENSE("GPL");
generated by cgit v0.10.2 at 2024-10-14 19:24:26 (GMT)