970 lines
23 KiB
C
970 lines
23 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2001 Vojtech Pavlik
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*
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* CATC EL1210A NetMate USB Ethernet driver
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*
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* Sponsored by SuSE
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*
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* Based on the work of
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* Donald Becker
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*
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* Old chipset support added by Simon Evans <spse@secret.org.uk> 2002
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* - adds support for Belkin F5U011
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*/
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/*
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*
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* Should you need to contact me, the author, you can do so either by
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* e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/spinlock.h>
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#include <linux/ethtool.h>
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#include <linux/crc32.h>
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#include <linux/bitops.h>
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#include <linux/gfp.h>
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#include <linux/uaccess.h>
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#undef DEBUG
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#include <linux/usb.h>
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/*
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* Version information.
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*/
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#define DRIVER_VERSION "v2.8"
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#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@suse.cz>"
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#define DRIVER_DESC "CATC EL1210A NetMate USB Ethernet driver"
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#define SHORT_DRIVER_DESC "EL1210A NetMate USB Ethernet"
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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static const char driver_name[] = "catc";
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/*
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* Some defines.
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*/
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#define STATS_UPDATE (HZ) /* Time between stats updates */
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#define TX_TIMEOUT (5*HZ) /* Max time the queue can be stopped */
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#define PKT_SZ 1536 /* Max Ethernet packet size */
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#define RX_MAX_BURST 15 /* Max packets per rx buffer (> 0, < 16) */
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#define TX_MAX_BURST 15 /* Max full sized packets per tx buffer (> 0) */
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#define CTRL_QUEUE 16 /* Max control requests in flight (power of two) */
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#define RX_PKT_SZ 1600 /* Max size of receive packet for F5U011 */
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/*
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* Control requests.
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*/
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enum control_requests {
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ReadMem = 0xf1,
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GetMac = 0xf2,
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Reset = 0xf4,
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SetMac = 0xf5,
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SetRxMode = 0xf5, /* F5U011 only */
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WriteROM = 0xf8,
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SetReg = 0xfa,
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GetReg = 0xfb,
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WriteMem = 0xfc,
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ReadROM = 0xfd,
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};
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/*
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* Registers.
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*/
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enum register_offsets {
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TxBufCount = 0x20,
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RxBufCount = 0x21,
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OpModes = 0x22,
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TxQed = 0x23,
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RxQed = 0x24,
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MaxBurst = 0x25,
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RxUnit = 0x60,
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EthStatus = 0x61,
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StationAddr0 = 0x67,
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EthStats = 0x69,
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LEDCtrl = 0x81,
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};
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enum eth_stats {
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TxSingleColl = 0x00,
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TxMultiColl = 0x02,
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TxExcessColl = 0x04,
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RxFramErr = 0x06,
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};
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enum op_mode_bits {
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Op3MemWaits = 0x03,
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OpLenInclude = 0x08,
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OpRxMerge = 0x10,
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OpTxMerge = 0x20,
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OpWin95bugfix = 0x40,
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OpLoopback = 0x80,
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};
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enum rx_filter_bits {
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RxEnable = 0x01,
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RxPolarity = 0x02,
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RxForceOK = 0x04,
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RxMultiCast = 0x08,
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RxPromisc = 0x10,
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AltRxPromisc = 0x20, /* F5U011 uses different bit */
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};
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enum led_values {
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LEDFast = 0x01,
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LEDSlow = 0x02,
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LEDFlash = 0x03,
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LEDPulse = 0x04,
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LEDLink = 0x08,
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};
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enum link_status {
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LinkNoChange = 0,
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LinkGood = 1,
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LinkBad = 2
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};
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/*
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* The catc struct.
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*/
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#define CTRL_RUNNING 0
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#define RX_RUNNING 1
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#define TX_RUNNING 2
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struct catc {
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struct net_device *netdev;
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struct usb_device *usbdev;
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unsigned long flags;
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unsigned int tx_ptr, tx_idx;
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unsigned int ctrl_head, ctrl_tail;
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spinlock_t tx_lock, ctrl_lock;
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u8 tx_buf[2][TX_MAX_BURST * (PKT_SZ + 2)];
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u8 rx_buf[RX_MAX_BURST * (PKT_SZ + 2)];
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u8 irq_buf[2];
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u8 ctrl_buf[64];
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struct usb_ctrlrequest ctrl_dr;
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struct timer_list timer;
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u8 stats_buf[8];
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u16 stats_vals[4];
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unsigned long last_stats;
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u8 multicast[64];
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struct ctrl_queue {
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u8 dir;
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u8 request;
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u16 value;
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u16 index;
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void *buf;
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int len;
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void (*callback)(struct catc *catc, struct ctrl_queue *q);
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} ctrl_queue[CTRL_QUEUE];
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struct urb *tx_urb, *rx_urb, *irq_urb, *ctrl_urb;
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u8 is_f5u011; /* Set if device is an F5U011 */
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u8 rxmode[2]; /* Used for F5U011 */
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atomic_t recq_sz; /* Used for F5U011 - counter of waiting rx packets */
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};
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/*
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* Useful macros.
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*/
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#define catc_get_mac(catc, mac) catc_ctrl_msg(catc, USB_DIR_IN, GetMac, 0, 0, mac, 6)
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#define catc_reset(catc) catc_ctrl_msg(catc, USB_DIR_OUT, Reset, 0, 0, NULL, 0)
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#define catc_set_reg(catc, reg, val) catc_ctrl_msg(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0)
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#define catc_get_reg(catc, reg, buf) catc_ctrl_msg(catc, USB_DIR_IN, GetReg, 0, reg, buf, 1)
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#define catc_write_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size)
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#define catc_read_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_IN, ReadMem, 0, addr, buf, size)
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#define f5u011_rxmode(catc, rxmode) catc_ctrl_msg(catc, USB_DIR_OUT, SetRxMode, 0, 1, rxmode, 2)
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#define f5u011_rxmode_async(catc, rxmode) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 1, &rxmode, 2, NULL)
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#define f5u011_mchash_async(catc, hash) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 2, &hash, 8, NULL)
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#define catc_set_reg_async(catc, reg, val) catc_ctrl_async(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0, NULL)
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#define catc_get_reg_async(catc, reg, cb) catc_ctrl_async(catc, USB_DIR_IN, GetReg, 0, reg, NULL, 1, cb)
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#define catc_write_mem_async(catc, addr, buf, size) catc_ctrl_async(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size, NULL)
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/*
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* Receive routines.
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*/
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static void catc_rx_done(struct urb *urb)
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{
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struct catc *catc = urb->context;
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u8 *pkt_start = urb->transfer_buffer;
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struct sk_buff *skb;
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int pkt_len, pkt_offset = 0;
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int status = urb->status;
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if (!catc->is_f5u011) {
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clear_bit(RX_RUNNING, &catc->flags);
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pkt_offset = 2;
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}
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if (status) {
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dev_dbg(&urb->dev->dev, "rx_done, status %d, length %d\n",
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status, urb->actual_length);
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return;
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}
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do {
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if(!catc->is_f5u011) {
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pkt_len = le16_to_cpup((__le16*)pkt_start);
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if (pkt_len > urb->actual_length) {
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catc->netdev->stats.rx_length_errors++;
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catc->netdev->stats.rx_errors++;
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break;
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}
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} else {
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pkt_len = urb->actual_length;
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}
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if (!(skb = dev_alloc_skb(pkt_len)))
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return;
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skb_copy_to_linear_data(skb, pkt_start + pkt_offset, pkt_len);
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skb_put(skb, pkt_len);
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skb->protocol = eth_type_trans(skb, catc->netdev);
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netif_rx(skb);
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catc->netdev->stats.rx_packets++;
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catc->netdev->stats.rx_bytes += pkt_len;
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/* F5U011 only does one packet per RX */
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if (catc->is_f5u011)
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break;
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pkt_start += (((pkt_len + 1) >> 6) + 1) << 6;
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} while (pkt_start - (u8 *) urb->transfer_buffer < urb->actual_length);
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if (catc->is_f5u011) {
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if (atomic_read(&catc->recq_sz)) {
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int state;
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atomic_dec(&catc->recq_sz);
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netdev_dbg(catc->netdev, "getting extra packet\n");
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urb->dev = catc->usbdev;
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if ((state = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
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netdev_dbg(catc->netdev,
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"submit(rx_urb) status %d\n", state);
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}
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} else {
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clear_bit(RX_RUNNING, &catc->flags);
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}
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}
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}
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static void catc_irq_done(struct urb *urb)
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{
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struct catc *catc = urb->context;
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u8 *data = urb->transfer_buffer;
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int status = urb->status;
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unsigned int hasdata = 0, linksts = LinkNoChange;
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int res;
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if (!catc->is_f5u011) {
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hasdata = data[1] & 0x80;
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if (data[1] & 0x40)
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linksts = LinkGood;
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else if (data[1] & 0x20)
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linksts = LinkBad;
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} else {
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hasdata = (unsigned int)(be16_to_cpup((__be16*)data) & 0x0fff);
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if (data[0] == 0x90)
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linksts = LinkGood;
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else if (data[0] == 0xA0)
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linksts = LinkBad;
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}
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switch (status) {
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case 0: /* success */
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break;
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case -ECONNRESET: /* unlink */
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case -ENOENT:
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case -ESHUTDOWN:
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return;
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/* -EPIPE: should clear the halt */
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default: /* error */
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dev_dbg(&urb->dev->dev,
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"irq_done, status %d, data %02x %02x.\n",
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status, data[0], data[1]);
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goto resubmit;
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}
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if (linksts == LinkGood) {
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netif_carrier_on(catc->netdev);
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netdev_dbg(catc->netdev, "link ok\n");
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}
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if (linksts == LinkBad) {
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netif_carrier_off(catc->netdev);
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netdev_dbg(catc->netdev, "link bad\n");
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}
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if (hasdata) {
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if (test_and_set_bit(RX_RUNNING, &catc->flags)) {
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if (catc->is_f5u011)
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atomic_inc(&catc->recq_sz);
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} else {
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catc->rx_urb->dev = catc->usbdev;
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if ((res = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) {
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dev_err(&catc->usbdev->dev,
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"submit(rx_urb) status %d\n", res);
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}
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}
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}
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resubmit:
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res = usb_submit_urb (urb, GFP_ATOMIC);
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if (res)
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dev_err(&catc->usbdev->dev,
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"can't resubmit intr, %s-%s, status %d\n",
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catc->usbdev->bus->bus_name,
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catc->usbdev->devpath, res);
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}
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/*
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* Transmit routines.
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*/
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static int catc_tx_run(struct catc *catc)
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{
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int status;
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if (catc->is_f5u011)
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catc->tx_ptr = (catc->tx_ptr + 63) & ~63;
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catc->tx_urb->transfer_buffer_length = catc->tx_ptr;
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catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx];
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catc->tx_urb->dev = catc->usbdev;
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if ((status = usb_submit_urb(catc->tx_urb, GFP_ATOMIC)) < 0)
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dev_err(&catc->usbdev->dev, "submit(tx_urb), status %d\n",
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status);
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catc->tx_idx = !catc->tx_idx;
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catc->tx_ptr = 0;
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netif_trans_update(catc->netdev);
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return status;
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}
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static void catc_tx_done(struct urb *urb)
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{
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struct catc *catc = urb->context;
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unsigned long flags;
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int r, status = urb->status;
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if (status == -ECONNRESET) {
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dev_dbg(&urb->dev->dev, "Tx Reset.\n");
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urb->status = 0;
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netif_trans_update(catc->netdev);
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catc->netdev->stats.tx_errors++;
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clear_bit(TX_RUNNING, &catc->flags);
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netif_wake_queue(catc->netdev);
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return;
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}
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if (status) {
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dev_dbg(&urb->dev->dev, "tx_done, status %d, length %d\n",
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status, urb->actual_length);
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return;
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}
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spin_lock_irqsave(&catc->tx_lock, flags);
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if (catc->tx_ptr) {
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r = catc_tx_run(catc);
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if (unlikely(r < 0))
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clear_bit(TX_RUNNING, &catc->flags);
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} else {
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clear_bit(TX_RUNNING, &catc->flags);
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}
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netif_wake_queue(catc->netdev);
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spin_unlock_irqrestore(&catc->tx_lock, flags);
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}
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static netdev_tx_t catc_start_xmit(struct sk_buff *skb,
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struct net_device *netdev)
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{
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struct catc *catc = netdev_priv(netdev);
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unsigned long flags;
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int r = 0;
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char *tx_buf;
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spin_lock_irqsave(&catc->tx_lock, flags);
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catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6;
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tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr;
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if (catc->is_f5u011)
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*(__be16 *)tx_buf = cpu_to_be16(skb->len);
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else
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*(__le16 *)tx_buf = cpu_to_le16(skb->len);
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skb_copy_from_linear_data(skb, tx_buf + 2, skb->len);
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catc->tx_ptr += skb->len + 2;
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if (!test_and_set_bit(TX_RUNNING, &catc->flags)) {
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r = catc_tx_run(catc);
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if (r < 0)
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clear_bit(TX_RUNNING, &catc->flags);
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}
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if ((catc->is_f5u011 && catc->tx_ptr) ||
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(catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2))))
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netif_stop_queue(netdev);
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spin_unlock_irqrestore(&catc->tx_lock, flags);
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if (r >= 0) {
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catc->netdev->stats.tx_bytes += skb->len;
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catc->netdev->stats.tx_packets++;
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}
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dev_kfree_skb(skb);
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return NETDEV_TX_OK;
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}
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static void catc_tx_timeout(struct net_device *netdev)
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{
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struct catc *catc = netdev_priv(netdev);
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dev_warn(&netdev->dev, "Transmit timed out.\n");
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usb_unlink_urb(catc->tx_urb);
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}
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/*
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* Control messages.
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*/
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static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
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{
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int retval = usb_control_msg(catc->usbdev,
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dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0),
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request, 0x40 | dir, value, index, buf, len, 1000);
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return retval < 0 ? retval : 0;
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}
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static void catc_ctrl_run(struct catc *catc)
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{
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struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail;
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struct usb_device *usbdev = catc->usbdev;
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struct urb *urb = catc->ctrl_urb;
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struct usb_ctrlrequest *dr = &catc->ctrl_dr;
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int status;
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dr->bRequest = q->request;
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dr->bRequestType = 0x40 | q->dir;
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dr->wValue = cpu_to_le16(q->value);
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dr->wIndex = cpu_to_le16(q->index);
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dr->wLength = cpu_to_le16(q->len);
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urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0);
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urb->transfer_buffer_length = q->len;
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urb->transfer_buffer = catc->ctrl_buf;
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urb->setup_packet = (void *) dr;
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urb->dev = usbdev;
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if (!q->dir && q->buf && q->len)
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memcpy(catc->ctrl_buf, q->buf, q->len);
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if ((status = usb_submit_urb(catc->ctrl_urb, GFP_ATOMIC)))
|
|
dev_err(&catc->usbdev->dev, "submit(ctrl_urb) status %d\n",
|
|
status);
|
|
}
|
|
|
|
static void catc_ctrl_done(struct urb *urb)
|
|
{
|
|
struct catc *catc = urb->context;
|
|
struct ctrl_queue *q;
|
|
unsigned long flags;
|
|
int status = urb->status;
|
|
|
|
if (status)
|
|
dev_dbg(&urb->dev->dev, "ctrl_done, status %d, len %d.\n",
|
|
status, urb->actual_length);
|
|
|
|
spin_lock_irqsave(&catc->ctrl_lock, flags);
|
|
|
|
q = catc->ctrl_queue + catc->ctrl_tail;
|
|
|
|
if (q->dir) {
|
|
if (q->buf && q->len)
|
|
memcpy(q->buf, catc->ctrl_buf, q->len);
|
|
else
|
|
q->buf = catc->ctrl_buf;
|
|
}
|
|
|
|
if (q->callback)
|
|
q->callback(catc, q);
|
|
|
|
catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
|
|
|
|
if (catc->ctrl_head != catc->ctrl_tail)
|
|
catc_ctrl_run(catc);
|
|
else
|
|
clear_bit(CTRL_RUNNING, &catc->flags);
|
|
|
|
spin_unlock_irqrestore(&catc->ctrl_lock, flags);
|
|
}
|
|
|
|
static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value,
|
|
u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q))
|
|
{
|
|
struct ctrl_queue *q;
|
|
int retval = 0;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&catc->ctrl_lock, flags);
|
|
|
|
q = catc->ctrl_queue + catc->ctrl_head;
|
|
|
|
q->dir = dir;
|
|
q->request = request;
|
|
q->value = value;
|
|
q->index = index;
|
|
q->buf = buf;
|
|
q->len = len;
|
|
q->callback = callback;
|
|
|
|
catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1);
|
|
|
|
if (catc->ctrl_head == catc->ctrl_tail) {
|
|
dev_err(&catc->usbdev->dev, "ctrl queue full\n");
|
|
catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
|
|
retval = -1;
|
|
}
|
|
|
|
if (!test_and_set_bit(CTRL_RUNNING, &catc->flags))
|
|
catc_ctrl_run(catc);
|
|
|
|
spin_unlock_irqrestore(&catc->ctrl_lock, flags);
|
|
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* Statistics.
|
|
*/
|
|
|
|
static void catc_stats_done(struct catc *catc, struct ctrl_queue *q)
|
|
{
|
|
int index = q->index - EthStats;
|
|
u16 data, last;
|
|
|
|
catc->stats_buf[index] = *((char *)q->buf);
|
|
|
|
if (index & 1)
|
|
return;
|
|
|
|
data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1];
|
|
last = catc->stats_vals[index >> 1];
|
|
|
|
switch (index) {
|
|
case TxSingleColl:
|
|
case TxMultiColl:
|
|
catc->netdev->stats.collisions += data - last;
|
|
break;
|
|
case TxExcessColl:
|
|
catc->netdev->stats.tx_aborted_errors += data - last;
|
|
catc->netdev->stats.tx_errors += data - last;
|
|
break;
|
|
case RxFramErr:
|
|
catc->netdev->stats.rx_frame_errors += data - last;
|
|
catc->netdev->stats.rx_errors += data - last;
|
|
break;
|
|
}
|
|
|
|
catc->stats_vals[index >> 1] = data;
|
|
}
|
|
|
|
static void catc_stats_timer(struct timer_list *t)
|
|
{
|
|
struct catc *catc = from_timer(catc, t, timer);
|
|
int i;
|
|
|
|
for (i = 0; i < 8; i++)
|
|
catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done);
|
|
|
|
mod_timer(&catc->timer, jiffies + STATS_UPDATE);
|
|
}
|
|
|
|
/*
|
|
* Receive modes. Broadcast, Multicast, Promisc.
|
|
*/
|
|
|
|
static void catc_multicast(unsigned char *addr, u8 *multicast)
|
|
{
|
|
u32 crc;
|
|
|
|
crc = ether_crc_le(6, addr);
|
|
multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
|
|
}
|
|
|
|
static void catc_set_multicast_list(struct net_device *netdev)
|
|
{
|
|
struct catc *catc = netdev_priv(netdev);
|
|
struct netdev_hw_addr *ha;
|
|
u8 broadcast[ETH_ALEN];
|
|
u8 rx = RxEnable | RxPolarity | RxMultiCast;
|
|
|
|
eth_broadcast_addr(broadcast);
|
|
memset(catc->multicast, 0, 64);
|
|
|
|
catc_multicast(broadcast, catc->multicast);
|
|
catc_multicast(netdev->dev_addr, catc->multicast);
|
|
|
|
if (netdev->flags & IFF_PROMISC) {
|
|
memset(catc->multicast, 0xff, 64);
|
|
rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc;
|
|
}
|
|
|
|
if (netdev->flags & IFF_ALLMULTI) {
|
|
memset(catc->multicast, 0xff, 64);
|
|
} else {
|
|
netdev_for_each_mc_addr(ha, netdev) {
|
|
u32 crc = ether_crc_le(6, ha->addr);
|
|
if (!catc->is_f5u011) {
|
|
catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
|
|
} else {
|
|
catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7);
|
|
}
|
|
}
|
|
}
|
|
if (!catc->is_f5u011) {
|
|
catc_set_reg_async(catc, RxUnit, rx);
|
|
catc_write_mem_async(catc, 0xfa80, catc->multicast, 64);
|
|
} else {
|
|
f5u011_mchash_async(catc, catc->multicast);
|
|
if (catc->rxmode[0] != rx) {
|
|
catc->rxmode[0] = rx;
|
|
netdev_dbg(catc->netdev,
|
|
"Setting RX mode to %2.2X %2.2X\n",
|
|
catc->rxmode[0], catc->rxmode[1]);
|
|
f5u011_rxmode_async(catc, catc->rxmode);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void catc_get_drvinfo(struct net_device *dev,
|
|
struct ethtool_drvinfo *info)
|
|
{
|
|
struct catc *catc = netdev_priv(dev);
|
|
strlcpy(info->driver, driver_name, sizeof(info->driver));
|
|
strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
|
|
usb_make_path(catc->usbdev, info->bus_info, sizeof(info->bus_info));
|
|
}
|
|
|
|
static int catc_get_link_ksettings(struct net_device *dev,
|
|
struct ethtool_link_ksettings *cmd)
|
|
{
|
|
struct catc *catc = netdev_priv(dev);
|
|
if (!catc->is_f5u011)
|
|
return -EOPNOTSUPP;
|
|
|
|
ethtool_link_ksettings_zero_link_mode(cmd, supported);
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
|
|
|
|
ethtool_link_ksettings_zero_link_mode(cmd, advertising);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
|
|
|
|
cmd->base.speed = SPEED_10;
|
|
cmd->base.duplex = DUPLEX_HALF;
|
|
cmd->base.port = PORT_TP;
|
|
cmd->base.phy_address = 0;
|
|
cmd->base.autoneg = AUTONEG_DISABLE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct ethtool_ops ops = {
|
|
.get_drvinfo = catc_get_drvinfo,
|
|
.get_link = ethtool_op_get_link,
|
|
.get_link_ksettings = catc_get_link_ksettings,
|
|
};
|
|
|
|
/*
|
|
* Open, close.
|
|
*/
|
|
|
|
static int catc_open(struct net_device *netdev)
|
|
{
|
|
struct catc *catc = netdev_priv(netdev);
|
|
int status;
|
|
|
|
catc->irq_urb->dev = catc->usbdev;
|
|
if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) {
|
|
dev_err(&catc->usbdev->dev, "submit(irq_urb) status %d\n",
|
|
status);
|
|
return -1;
|
|
}
|
|
|
|
netif_start_queue(netdev);
|
|
|
|
if (!catc->is_f5u011)
|
|
mod_timer(&catc->timer, jiffies + STATS_UPDATE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int catc_stop(struct net_device *netdev)
|
|
{
|
|
struct catc *catc = netdev_priv(netdev);
|
|
|
|
netif_stop_queue(netdev);
|
|
|
|
if (!catc->is_f5u011)
|
|
del_timer_sync(&catc->timer);
|
|
|
|
usb_kill_urb(catc->rx_urb);
|
|
usb_kill_urb(catc->tx_urb);
|
|
usb_kill_urb(catc->irq_urb);
|
|
usb_kill_urb(catc->ctrl_urb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct net_device_ops catc_netdev_ops = {
|
|
.ndo_open = catc_open,
|
|
.ndo_stop = catc_stop,
|
|
.ndo_start_xmit = catc_start_xmit,
|
|
|
|
.ndo_tx_timeout = catc_tx_timeout,
|
|
.ndo_set_rx_mode = catc_set_multicast_list,
|
|
.ndo_set_mac_address = eth_mac_addr,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
};
|
|
|
|
/*
|
|
* USB probe, disconnect.
|
|
*/
|
|
|
|
static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id)
|
|
{
|
|
struct device *dev = &intf->dev;
|
|
struct usb_device *usbdev = interface_to_usbdev(intf);
|
|
struct net_device *netdev;
|
|
struct catc *catc;
|
|
u8 broadcast[ETH_ALEN];
|
|
int pktsz, ret;
|
|
|
|
if (usb_set_interface(usbdev,
|
|
intf->altsetting->desc.bInterfaceNumber, 1)) {
|
|
dev_err(dev, "Can't set altsetting 1.\n");
|
|
return -EIO;
|
|
}
|
|
|
|
netdev = alloc_etherdev(sizeof(struct catc));
|
|
if (!netdev)
|
|
return -ENOMEM;
|
|
|
|
catc = netdev_priv(netdev);
|
|
|
|
netdev->netdev_ops = &catc_netdev_ops;
|
|
netdev->watchdog_timeo = TX_TIMEOUT;
|
|
netdev->ethtool_ops = &ops;
|
|
|
|
catc->usbdev = usbdev;
|
|
catc->netdev = netdev;
|
|
|
|
spin_lock_init(&catc->tx_lock);
|
|
spin_lock_init(&catc->ctrl_lock);
|
|
|
|
timer_setup(&catc->timer, catc_stats_timer, 0);
|
|
|
|
catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if ((!catc->ctrl_urb) || (!catc->tx_urb) ||
|
|
(!catc->rx_urb) || (!catc->irq_urb)) {
|
|
dev_err(&intf->dev, "No free urbs available.\n");
|
|
ret = -ENOMEM;
|
|
goto fail_free;
|
|
}
|
|
|
|
/* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */
|
|
if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 &&
|
|
le16_to_cpu(usbdev->descriptor.idProduct) == 0xa &&
|
|
le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) {
|
|
dev_dbg(dev, "Testing for f5u011\n");
|
|
catc->is_f5u011 = 1;
|
|
atomic_set(&catc->recq_sz, 0);
|
|
pktsz = RX_PKT_SZ;
|
|
} else {
|
|
pktsz = RX_MAX_BURST * (PKT_SZ + 2);
|
|
}
|
|
|
|
usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0),
|
|
NULL, NULL, 0, catc_ctrl_done, catc);
|
|
|
|
usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1),
|
|
NULL, 0, catc_tx_done, catc);
|
|
|
|
usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1),
|
|
catc->rx_buf, pktsz, catc_rx_done, catc);
|
|
|
|
usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2),
|
|
catc->irq_buf, 2, catc_irq_done, catc, 1);
|
|
|
|
if (!catc->is_f5u011) {
|
|
u32 *buf;
|
|
int i;
|
|
|
|
dev_dbg(dev, "Checking memory size\n");
|
|
|
|
buf = kmalloc(4, GFP_KERNEL);
|
|
if (!buf) {
|
|
ret = -ENOMEM;
|
|
goto fail_free;
|
|
}
|
|
|
|
*buf = 0x12345678;
|
|
catc_write_mem(catc, 0x7a80, buf, 4);
|
|
*buf = 0x87654321;
|
|
catc_write_mem(catc, 0xfa80, buf, 4);
|
|
catc_read_mem(catc, 0x7a80, buf, 4);
|
|
|
|
switch (*buf) {
|
|
case 0x12345678:
|
|
catc_set_reg(catc, TxBufCount, 8);
|
|
catc_set_reg(catc, RxBufCount, 32);
|
|
dev_dbg(dev, "64k Memory\n");
|
|
break;
|
|
default:
|
|
dev_warn(&intf->dev,
|
|
"Couldn't detect memory size, assuming 32k\n");
|
|
/* fall through */
|
|
case 0x87654321:
|
|
catc_set_reg(catc, TxBufCount, 4);
|
|
catc_set_reg(catc, RxBufCount, 16);
|
|
dev_dbg(dev, "32k Memory\n");
|
|
break;
|
|
}
|
|
|
|
kfree(buf);
|
|
|
|
dev_dbg(dev, "Getting MAC from SEEROM.\n");
|
|
|
|
catc_get_mac(catc, netdev->dev_addr);
|
|
|
|
dev_dbg(dev, "Setting MAC into registers.\n");
|
|
|
|
for (i = 0; i < 6; i++)
|
|
catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]);
|
|
|
|
dev_dbg(dev, "Filling the multicast list.\n");
|
|
|
|
eth_broadcast_addr(broadcast);
|
|
catc_multicast(broadcast, catc->multicast);
|
|
catc_multicast(netdev->dev_addr, catc->multicast);
|
|
catc_write_mem(catc, 0xfa80, catc->multicast, 64);
|
|
|
|
dev_dbg(dev, "Clearing error counters.\n");
|
|
|
|
for (i = 0; i < 8; i++)
|
|
catc_set_reg(catc, EthStats + i, 0);
|
|
catc->last_stats = jiffies;
|
|
|
|
dev_dbg(dev, "Enabling.\n");
|
|
|
|
catc_set_reg(catc, MaxBurst, RX_MAX_BURST);
|
|
catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits);
|
|
catc_set_reg(catc, LEDCtrl, LEDLink);
|
|
catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast);
|
|
} else {
|
|
dev_dbg(dev, "Performing reset\n");
|
|
catc_reset(catc);
|
|
catc_get_mac(catc, netdev->dev_addr);
|
|
|
|
dev_dbg(dev, "Setting RX Mode\n");
|
|
catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast;
|
|
catc->rxmode[1] = 0;
|
|
f5u011_rxmode(catc, catc->rxmode);
|
|
}
|
|
dev_dbg(dev, "Init done.\n");
|
|
printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, %pM.\n",
|
|
netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate",
|
|
usbdev->bus->bus_name, usbdev->devpath, netdev->dev_addr);
|
|
usb_set_intfdata(intf, catc);
|
|
|
|
SET_NETDEV_DEV(netdev, &intf->dev);
|
|
ret = register_netdev(netdev);
|
|
if (ret)
|
|
goto fail_clear_intfdata;
|
|
|
|
return 0;
|
|
|
|
fail_clear_intfdata:
|
|
usb_set_intfdata(intf, NULL);
|
|
fail_free:
|
|
usb_free_urb(catc->ctrl_urb);
|
|
usb_free_urb(catc->tx_urb);
|
|
usb_free_urb(catc->rx_urb);
|
|
usb_free_urb(catc->irq_urb);
|
|
free_netdev(netdev);
|
|
return ret;
|
|
}
|
|
|
|
static void catc_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct catc *catc = usb_get_intfdata(intf);
|
|
|
|
usb_set_intfdata(intf, NULL);
|
|
if (catc) {
|
|
unregister_netdev(catc->netdev);
|
|
usb_free_urb(catc->ctrl_urb);
|
|
usb_free_urb(catc->tx_urb);
|
|
usb_free_urb(catc->rx_urb);
|
|
usb_free_urb(catc->irq_urb);
|
|
free_netdev(catc->netdev);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Module functions and tables.
|
|
*/
|
|
|
|
static const struct usb_device_id catc_id_table[] = {
|
|
{ USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */
|
|
{ USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */
|
|
{ USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */
|
|
{ }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(usb, catc_id_table);
|
|
|
|
static struct usb_driver catc_driver = {
|
|
.name = driver_name,
|
|
.probe = catc_probe,
|
|
.disconnect = catc_disconnect,
|
|
.id_table = catc_id_table,
|
|
.disable_hub_initiated_lpm = 1,
|
|
};
|
|
|
|
module_usb_driver(catc_driver);
|