2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (C) 2012 Ben Gray <bgray@freebsd.org>.
5 * Copyright (C) 2018 The FreeBSD Foundation.
7 * This software was developed by Arshan Khanifar <arshankhanifar@gmail.com>
8 * under sponsorship from the FreeBSD Foundation.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
38 * USB-To-Ethernet adapter driver for Microchip's LAN78XX and related families.
40 * USB 3.1 to 10/100/1000 Mbps Ethernet
41 * LAN7800 http://www.microchip.com/wwwproducts/en/LAN7800
43 * USB 2.0 to 10/100/1000 Mbps Ethernet
44 * LAN7850 http://www.microchip.com/wwwproducts/en/LAN7850
46 * USB 2 to 10/100/1000 Mbps Ethernet with built-in USB hub
47 * LAN7515 (no datasheet available, but probes and functions as LAN7800)
49 * This driver is based on the if_smsc driver, with lan78xx-specific
50 * functionality modelled on Microchip's Linux lan78xx driver.
52 * UNIMPLEMENTED FEATURES
54 * A number of features supported by the lan78xx are not yet implemented in
57 * - RX/TX checksum offloading: Nothing has been implemented yet for
58 * TX checksumming. RX checksumming works with ICMP messages, but is broken
59 * for TCP/UDP packets.
60 * - Direct address translation filtering: Implemented but untested.
62 * - Support for USB interrupt endpoints.
63 * - Latency Tolerance Messaging (LTM) support.
68 #include <sys/param.h>
70 #include <sys/callout.h>
71 #include <sys/condvar.h>
72 #include <sys/kernel.h>
74 #include <sys/malloc.h>
75 #include <sys/module.h>
76 #include <sys/mutex.h>
78 #include <sys/queue.h>
79 #include <sys/random.h>
80 #include <sys/socket.h>
81 #include <sys/stddef.h>
82 #include <sys/stdint.h>
84 #include <sys/sysctl.h>
85 #include <sys/systm.h>
86 #include <sys/unistd.h>
89 #include <net/if_var.h>
91 #include <netinet/in.h>
92 #include <netinet/ip.h>
94 #include "opt_platform.h"
97 #include <dev/fdt/fdt_common.h>
98 #include <dev/ofw/ofw_bus.h>
99 #include <dev/ofw/ofw_bus_subr.h>
100 #include <dev/usb/usb_fdt_support.h>
103 #include <dev/usb/usb.h>
104 #include <dev/usb/usbdi.h>
105 #include <dev/usb/usbdi_util.h>
108 #define USB_DEBUG_VAR lan78xx_debug
109 #include <dev/usb/usb_debug.h>
110 #include <dev/usb/usb_process.h>
112 #include <dev/usb/net/usb_ethernet.h>
114 #include <dev/usb/net/if_mugereg.h>
117 static int muge_debug = 0;
119 SYSCTL_NODE(_hw_usb, OID_AUTO, muge, CTLFLAG_RW, 0,
120 "Microchip LAN78xx USB-GigE");
121 SYSCTL_INT(_hw_usb_muge, OID_AUTO, debug, CTLFLAG_RWTUN, &muge_debug, 0,
125 #define MUGE_DEFAULT_RX_CSUM_ENABLE (false)
126 #define MUGE_DEFAULT_TX_CSUM_ENABLE (false)
127 #define MUGE_DEFAULT_TSO_CSUM_ENABLE (false)
129 /* Supported Vendor and Product IDs. */
130 static const struct usb_device_id lan78xx_devs[] = {
131 #define MUGE_DEV(p,i) { USB_VPI(USB_VENDOR_SMC2, USB_PRODUCT_SMC2_##p, i) }
132 MUGE_DEV(LAN7800_ETH, 0),
133 MUGE_DEV(LAN7801_ETH, 0),
134 MUGE_DEV(LAN7850_ETH, 0),
139 #define muge_dbg_printf(sc, fmt, args...) \
141 if (muge_debug > 0) \
142 device_printf((sc)->sc_ue.ue_dev, "debug: " fmt, ##args); \
145 #define muge_dbg_printf(sc, fmt, args...) do { } while (0)
148 #define muge_warn_printf(sc, fmt, args...) \
149 device_printf((sc)->sc_ue.ue_dev, "warning: " fmt, ##args)
151 #define muge_err_printf(sc, fmt, args...) \
152 device_printf((sc)->sc_ue.ue_dev, "error: " fmt, ##args)
154 #define ETHER_IS_ZERO(addr) \
155 (!(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]))
157 #define ETHER_IS_VALID(addr) \
158 (!ETHER_IS_MULTICAST(addr) && !ETHER_IS_ZERO(addr))
165 #if 0 /* Ignore interrupt endpoints for now as we poll on MII status. */
173 struct usb_ether sc_ue;
175 struct usb_xfer *sc_xfer[MUGE_N_TRANSFER];
178 uint16_t sc_led_modes;
179 uint16_t sc_led_modes_mask;
181 /* Settings for the mac control (MAC_CSR) register. */
183 uint32_t sc_mdix_ctl;
186 uint32_t sc_mchash_table[ETH_DP_SEL_VHF_HASH_LEN];
187 uint32_t sc_pfilter_table[MUGE_NUM_PFILTER_ADDRS_][2];
190 #define MUGE_FLAG_LINK 0x0001
191 #define MUGE_FLAG_INIT_DONE 0x0002
194 #define MUGE_IFACE_IDX 0
196 #define MUGE_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
197 #define MUGE_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
198 #define MUGE_LOCK_ASSERT(_sc, t) mtx_assert(&(_sc)->sc_mtx, t)
200 static device_probe_t muge_probe;
201 static device_attach_t muge_attach;
202 static device_detach_t muge_detach;
204 static usb_callback_t muge_bulk_read_callback;
205 static usb_callback_t muge_bulk_write_callback;
207 static miibus_readreg_t lan78xx_miibus_readreg;
208 static miibus_writereg_t lan78xx_miibus_writereg;
209 static miibus_statchg_t lan78xx_miibus_statchg;
211 static int muge_attach_post_sub(struct usb_ether *ue);
212 static uether_fn_t muge_attach_post;
213 static uether_fn_t muge_init;
214 static uether_fn_t muge_stop;
215 static uether_fn_t muge_start;
216 static uether_fn_t muge_tick;
217 static uether_fn_t muge_setmulti;
218 static uether_fn_t muge_setpromisc;
220 static int muge_ifmedia_upd(struct ifnet *);
221 static void muge_ifmedia_sts(struct ifnet *, struct ifmediareq *);
223 static int lan78xx_chip_init(struct muge_softc *sc);
224 static int muge_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
226 static const struct usb_config muge_config[MUGE_N_TRANSFER] = {
228 [MUGE_BULK_DT_WR] = {
230 .endpoint = UE_ADDR_ANY,
231 .direction = UE_DIR_OUT,
233 .bufsize = 16 * (MCLBYTES + 16),
234 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
235 .callback = muge_bulk_write_callback,
236 .timeout = 10000, /* 10 seconds */
239 [MUGE_BULK_DT_RD] = {
241 .endpoint = UE_ADDR_ANY,
242 .direction = UE_DIR_IN,
243 .bufsize = 20480, /* bytes */
244 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
245 .callback = muge_bulk_read_callback,
246 .timeout = 0, /* no timeout */
249 * The chip supports interrupt endpoints, however they aren't
250 * needed as we poll on the MII status.
254 static const struct usb_ether_methods muge_ue_methods = {
255 .ue_attach_post = muge_attach_post,
256 .ue_attach_post_sub = muge_attach_post_sub,
257 .ue_start = muge_start,
258 .ue_ioctl = muge_ioctl,
259 .ue_init = muge_init,
260 .ue_stop = muge_stop,
261 .ue_tick = muge_tick,
262 .ue_setmulti = muge_setmulti,
263 .ue_setpromisc = muge_setpromisc,
264 .ue_mii_upd = muge_ifmedia_upd,
265 .ue_mii_sts = muge_ifmedia_sts,
269 * lan78xx_read_reg - Read a 32-bit register on the device
270 * @sc: driver soft context
271 * @off: offset of the register
272 * @data: pointer a value that will be populated with the register value
275 * The device lock must be held before calling this function.
278 * 0 on success, a USB_ERR_?? error code on failure.
281 lan78xx_read_reg(struct muge_softc *sc, uint32_t off, uint32_t *data)
283 struct usb_device_request req;
287 MUGE_LOCK_ASSERT(sc, MA_OWNED);
289 req.bmRequestType = UT_READ_VENDOR_DEVICE;
290 req.bRequest = UVR_READ_REG;
291 USETW(req.wValue, 0);
292 USETW(req.wIndex, off);
293 USETW(req.wLength, 4);
295 err = uether_do_request(&sc->sc_ue, &req, &buf, 1000);
297 muge_warn_printf(sc, "Failed to read register 0x%0x\n", off);
298 *data = le32toh(buf);
303 * lan78xx_write_reg - Write a 32-bit register on the device
304 * @sc: driver soft context
305 * @off: offset of the register
306 * @data: the 32-bit value to write into the register
309 * The device lock must be held before calling this function.
312 * 0 on success, a USB_ERR_?? error code on failure.
315 lan78xx_write_reg(struct muge_softc *sc, uint32_t off, uint32_t data)
317 struct usb_device_request req;
321 MUGE_LOCK_ASSERT(sc, MA_OWNED);
325 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
326 req.bRequest = UVR_WRITE_REG;
327 USETW(req.wValue, 0);
328 USETW(req.wIndex, off);
329 USETW(req.wLength, 4);
331 err = uether_do_request(&sc->sc_ue, &req, &buf, 1000);
333 muge_warn_printf(sc, "Failed to write register 0x%0x\n", off);
338 * lan78xx_wait_for_bits - Poll on a register value until bits are cleared
340 * @reg: offset of the register
341 * @bits: if the bits are clear the function returns
344 * The device lock must be held before calling this function.
347 * 0 on success, or a USB_ERR_?? error code on failure.
350 lan78xx_wait_for_bits(struct muge_softc *sc, uint32_t reg, uint32_t bits)
352 usb_ticks_t start_ticks;
353 const usb_ticks_t max_ticks = USB_MS_TO_TICKS(1000);
357 MUGE_LOCK_ASSERT(sc, MA_OWNED);
359 start_ticks = (usb_ticks_t)ticks;
361 if ((err = lan78xx_read_reg(sc, reg, &val)) != 0)
365 uether_pause(&sc->sc_ue, hz / 100);
366 } while (((usb_ticks_t)(ticks - start_ticks)) < max_ticks);
368 return (USB_ERR_TIMEOUT);
372 * lan78xx_eeprom_read_raw - Read the attached EEPROM
374 * @off: the eeprom address offset
375 * @buf: stores the bytes
376 * @buflen: the number of bytes to read
378 * Simply reads bytes from an attached eeprom.
381 * The function takes and releases the device lock if not already held.
384 * 0 on success, or a USB_ERR_?? error code on failure.
387 lan78xx_eeprom_read_raw(struct muge_softc *sc, uint16_t off, uint8_t *buf,
390 usb_ticks_t start_ticks;
391 const usb_ticks_t max_ticks = USB_MS_TO_TICKS(1000);
396 locked = mtx_owned(&sc->sc_mtx); /* XXX */
400 if (sc->chipid == ETH_ID_REV_CHIP_ID_7800_) {
401 /* EEDO/EECLK muxed with LED0/LED1 on LAN7800. */
402 err = lan78xx_read_reg(sc, ETH_HW_CFG, &val);
405 val &= ~(ETH_HW_CFG_LEDO_EN_ | ETH_HW_CFG_LED1_EN_);
406 err = lan78xx_write_reg(sc, ETH_HW_CFG, val);
409 err = lan78xx_wait_for_bits(sc, ETH_E2P_CMD, ETH_E2P_CMD_BUSY_);
411 muge_warn_printf(sc, "eeprom busy, failed to read data\n");
415 /* Start reading the bytes, one at a time. */
416 for (i = 0; i < buflen; i++) {
417 val = ETH_E2P_CMD_BUSY_ | ETH_E2P_CMD_READ_;
418 val |= (ETH_E2P_CMD_ADDR_MASK_ & (off + i));
419 if ((err = lan78xx_write_reg(sc, ETH_E2P_CMD, val)) != 0)
422 start_ticks = (usb_ticks_t)ticks;
424 if ((err = lan78xx_read_reg(sc, ETH_E2P_CMD, &val)) !=
427 if (!(val & ETH_E2P_CMD_BUSY_) ||
428 (val & ETH_E2P_CMD_TIMEOUT_))
431 uether_pause(&sc->sc_ue, hz / 100);
432 } while (((usb_ticks_t)(ticks - start_ticks)) < max_ticks);
434 if (val & (ETH_E2P_CMD_BUSY_ | ETH_E2P_CMD_TIMEOUT_)) {
435 muge_warn_printf(sc, "eeprom command failed\n");
436 err = USB_ERR_IOERROR;
440 if ((err = lan78xx_read_reg(sc, ETH_E2P_DATA, &val)) != 0)
443 buf[i] = (val & 0xff);
449 if (sc->chipid == ETH_ID_REV_CHIP_ID_7800_) {
450 /* Restore saved LED configuration. */
451 lan78xx_write_reg(sc, ETH_HW_CFG, saved);
457 lan78xx_eeprom_present(struct muge_softc *sc)
462 ret = lan78xx_eeprom_read_raw(sc, ETH_E2P_INDICATOR_OFFSET, &sig, 1);
463 return (ret == 0 && sig == ETH_E2P_INDICATOR);
467 * lan78xx_otp_read_raw
469 * @off: the otp address offset
470 * @buf: stores the bytes
471 * @buflen: the number of bytes to read
473 * Simply reads bytes from the OTP.
476 * The function takes and releases the device lock if not already held.
479 * 0 on success, or a USB_ERR_?? error code on failure.
483 lan78xx_otp_read_raw(struct muge_softc *sc, uint16_t off, uint8_t *buf,
489 locked = mtx_owned(&sc->sc_mtx);
493 err = lan78xx_read_reg(sc, OTP_PWR_DN, &val);
495 /* Checking if bit is set. */
496 if (val & OTP_PWR_DN_PWRDN_N) {
497 /* Clear it, then wait for it to be cleared. */
498 lan78xx_write_reg(sc, OTP_PWR_DN, 0);
499 err = lan78xx_wait_for_bits(sc, OTP_PWR_DN, OTP_PWR_DN_PWRDN_N);
501 muge_warn_printf(sc, "OTP off? failed to read data\n");
505 /* Start reading the bytes, one at a time. */
506 for (i = 0; i < buflen; i++) {
507 err = lan78xx_write_reg(sc, OTP_ADDR1,
508 ((off + i) >> 8) & OTP_ADDR1_15_11);
509 err = lan78xx_write_reg(sc, OTP_ADDR2,
510 ((off + i) & OTP_ADDR2_10_3));
511 err = lan78xx_write_reg(sc, OTP_FUNC_CMD, OTP_FUNC_CMD_READ_);
512 err = lan78xx_write_reg(sc, OTP_CMD_GO, OTP_CMD_GO_GO_);
514 err = lan78xx_wait_for_bits(sc, OTP_STATUS, OTP_STATUS_BUSY_);
516 muge_warn_printf(sc, "OTP busy failed to read data\n");
520 if ((err = lan78xx_read_reg(sc, OTP_RD_DATA, &val)) != 0)
523 buf[i] = (uint8_t)(val & 0xff);
535 * @off: the otp address offset
536 * @buf: stores the bytes
537 * @buflen: the number of bytes to read
539 * Simply reads bytes from the otp.
542 * The function takes and releases device lock if it is not already held.
545 * 0 on success, or a USB_ERR_?? error code on failure.
548 lan78xx_otp_read(struct muge_softc *sc, uint16_t off, uint8_t *buf,
554 err = lan78xx_otp_read_raw(sc, OTP_INDICATOR_OFFSET, &sig, 1);
556 if (sig == OTP_INDICATOR_1) {
557 } else if (sig == OTP_INDICATOR_2) {
558 off += 0x100; /* XXX */
563 err = lan78xx_otp_read_raw(sc, off, buf, buflen);
569 * lan78xx_setmacaddress - Set the mac address in the device
570 * @sc: driver soft context
571 * @addr: pointer to array contain at least 6 bytes of the mac
574 * Should be called with the MUGE lock held.
577 * Returns 0 on success or a negative error code.
580 lan78xx_setmacaddress(struct muge_softc *sc, const uint8_t *addr)
586 "setting mac address to %02x:%02x:%02x:%02x:%02x:%02x\n",
587 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
589 MUGE_LOCK_ASSERT(sc, MA_OWNED);
591 val = (addr[3] << 24) | (addr[2] << 16) | (addr[1] << 8) | addr[0];
592 if ((err = lan78xx_write_reg(sc, ETH_RX_ADDRL, val)) != 0)
595 val = (addr[5] << 8) | addr[4];
596 err = lan78xx_write_reg(sc, ETH_RX_ADDRH, val);
603 * lan78xx_set_rx_max_frame_length
604 * @sc: driver soft context
605 * @size: pointer to array contain at least 6 bytes of the mac
607 * Sets the maximum frame length to be received. Frames bigger than
608 * this size are aborted.
611 * Returns 0 on success or a negative error code.
614 lan78xx_set_rx_max_frame_length(struct muge_softc *sc, int size)
620 /* First we have to disable rx before changing the length. */
621 err = lan78xx_read_reg(sc, ETH_MAC_RX, &buf);
622 rxenabled = ((buf & ETH_MAC_RX_EN_) != 0);
625 buf &= ~ETH_MAC_RX_EN_;
626 err = lan78xx_write_reg(sc, ETH_MAC_RX, buf);
629 /* Setting max frame length. */
630 buf &= ~ETH_MAC_RX_MAX_FR_SIZE_MASK_;
631 buf |= (((size + 4) << ETH_MAC_RX_MAX_FR_SIZE_SHIFT_) &
632 ETH_MAC_RX_MAX_FR_SIZE_MASK_);
633 err = lan78xx_write_reg(sc, ETH_MAC_RX, buf);
635 /* If it were enabled before, we enable it back. */
638 buf |= ETH_MAC_RX_EN_;
639 err = lan78xx_write_reg(sc, ETH_MAC_RX, buf);
646 * lan78xx_miibus_readreg - Read a MII/MDIO register
647 * @dev: usb ether device
648 * @phy: the number of phy reading from
649 * @reg: the register address
652 * Takes and releases the device mutex lock if not already held.
655 * Returns the 16-bits read from the MII register, if this function fails
659 lan78xx_miibus_readreg(device_t dev, int phy, int reg) {
661 struct muge_softc *sc = device_get_softc(dev);
666 locked = mtx_owned(&sc->sc_mtx);
670 if (lan78xx_wait_for_bits(sc, ETH_MII_ACC, ETH_MII_ACC_MII_BUSY_) !=
672 muge_warn_printf(sc, "MII is busy\n");
676 addr = (phy << 11) | (reg << 6) |
677 ETH_MII_ACC_MII_READ_ | ETH_MII_ACC_MII_BUSY_;
678 lan78xx_write_reg(sc, ETH_MII_ACC, addr);
680 if (lan78xx_wait_for_bits(sc, ETH_MII_ACC, ETH_MII_ACC_MII_BUSY_) !=
682 muge_warn_printf(sc, "MII read timeout\n");
686 lan78xx_read_reg(sc, ETH_MII_DATA, &val);
693 return (val & 0xFFFF);
697 * lan78xx_miibus_writereg - Writes a MII/MDIO register
698 * @dev: usb ether device
699 * @phy: the number of phy writing to
700 * @reg: the register address
701 * @val: the value to write
703 * Attempts to write a PHY register through the usb controller registers.
706 * Takes and releases the device mutex lock if not already held.
709 * Always returns 0 regardless of success or failure.
712 lan78xx_miibus_writereg(device_t dev, int phy, int reg, int val)
714 struct muge_softc *sc = device_get_softc(dev);
718 if (sc->sc_phyno != phy)
721 locked = mtx_owned(&sc->sc_mtx);
725 if (lan78xx_wait_for_bits(sc, ETH_MII_ACC, ETH_MII_ACC_MII_BUSY_) !=
727 muge_warn_printf(sc, "MII is busy\n");
732 lan78xx_write_reg(sc, ETH_MII_DATA, val);
734 addr = (phy << 11) | (reg << 6) |
735 ETH_MII_ACC_MII_WRITE_ | ETH_MII_ACC_MII_BUSY_;
736 lan78xx_write_reg(sc, ETH_MII_ACC, addr);
738 if (lan78xx_wait_for_bits(sc, ETH_MII_ACC, ETH_MII_ACC_MII_BUSY_) != 0)
739 muge_warn_printf(sc, "MII write timeout\n");
748 * lan78xx_miibus_statchg - Called to detect phy status change
749 * @dev: usb ether device
751 * This function is called periodically by the system to poll for status
752 * changes of the link.
755 * Takes and releases the device mutex lock if not already held.
758 lan78xx_miibus_statchg(device_t dev)
760 struct muge_softc *sc = device_get_softc(dev);
761 struct mii_data *mii = uether_getmii(&sc->sc_ue);
766 uint32_t fct_flow = 0;
768 locked = mtx_owned(&sc->sc_mtx);
772 ifp = uether_getifp(&sc->sc_ue);
773 if (mii == NULL || ifp == NULL ||
774 (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
777 /* Use the MII status to determine link status */
778 sc->sc_flags &= ~MUGE_FLAG_LINK;
779 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
780 (IFM_ACTIVE | IFM_AVALID)) {
781 muge_dbg_printf(sc, "media is active\n");
782 switch (IFM_SUBTYPE(mii->mii_media_active)) {
785 sc->sc_flags |= MUGE_FLAG_LINK;
786 muge_dbg_printf(sc, "10/100 ethernet\n");
789 sc->sc_flags |= MUGE_FLAG_LINK;
790 muge_dbg_printf(sc, "Gigabit ethernet\n");
796 /* Lost link, do nothing. */
797 if ((sc->sc_flags & MUGE_FLAG_LINK) == 0) {
798 muge_dbg_printf(sc, "link flag not set\n");
802 err = lan78xx_read_reg(sc, ETH_FCT_FLOW, &fct_flow);
805 "failed to read initial flow control thresholds, error %d\n",
810 /* Enable/disable full duplex operation and TX/RX pause. */
811 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) {
812 muge_dbg_printf(sc, "full duplex operation\n");
814 /* Enable transmit MAC flow control function. */
815 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0)
816 flow |= ETH_FLOW_CR_TX_FCEN_ | 0xFFFF;
818 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0)
819 flow |= ETH_FLOW_CR_RX_FCEN_;
822 /* XXX Flow control settings obtained from Microchip's driver. */
823 switch(usbd_get_speed(sc->sc_ue.ue_udev)) {
824 case USB_SPEED_SUPER:
834 err += lan78xx_write_reg(sc, ETH_FLOW, flow);
835 err += lan78xx_write_reg(sc, ETH_FCT_FLOW, fct_flow);
837 muge_warn_printf(sc, "media change failed, error %d\n", err);
845 * lan78xx_set_mdix_auto - Configure the device to enable automatic
846 * crossover and polarity detection. LAN7800 provides HP Auto-MDIX
847 * functionality for seamless crossover and polarity detection.
849 * @sc: driver soft context
852 * Takes and releases the device mutex lock if not already held.
855 lan78xx_set_mdix_auto(struct muge_softc *sc)
859 err = lan78xx_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno,
860 MUGE_EXT_PAGE_ACCESS, MUGE_EXT_PAGE_SPACE_1);
862 buf = lan78xx_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno,
864 buf &= ~MUGE_EXT_MODE_CTRL_MDIX_MASK_;
865 buf |= MUGE_EXT_MODE_CTRL_AUTO_MDIX_;
867 lan78xx_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_BMCR);
868 err += lan78xx_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno,
869 MUGE_EXT_MODE_CTRL, buf);
871 err += lan78xx_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno,
872 MUGE_EXT_PAGE_ACCESS, MUGE_EXT_PAGE_SPACE_0);
875 muge_warn_printf(sc, "error setting PHY's MDIX status\n");
877 sc->sc_mdix_ctl = buf;
881 * lan78xx_phy_init - Initialises the in-built MUGE phy
882 * @sc: driver soft context
884 * Resets the PHY part of the chip and then initialises it to default
885 * values. The 'link down' and 'auto-negotiation complete' interrupts
886 * from the PHY are also enabled, however we don't monitor the interrupt
887 * endpoints for the moment.
890 * Returns 0 on success or EIO if failed to reset the PHY.
893 lan78xx_phy_init(struct muge_softc *sc)
895 muge_dbg_printf(sc, "Initializing PHY.\n");
897 usb_ticks_t start_ticks;
899 const usb_ticks_t max_ticks = USB_MS_TO_TICKS(1000);
901 MUGE_LOCK_ASSERT(sc, MA_OWNED);
903 /* Reset phy and wait for reset to complete. */
904 lan78xx_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_BMCR,
909 uether_pause(&sc->sc_ue, hz / 100);
910 bmcr = lan78xx_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno,
912 } while ((bmcr & BMCR_RESET) && ((ticks - start_ticks) < max_ticks));
914 if (((usb_ticks_t)(ticks - start_ticks)) >= max_ticks) {
915 muge_err_printf(sc, "PHY reset timed-out\n");
919 /* Setup phy to interrupt upon link down or autoneg completion. */
920 lan78xx_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno,
922 lan78xx_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno,
924 (MUGE_PHY_INTR_ANEG_COMP | MUGE_PHY_INTR_LINK_CHANGE));
926 /* Enable Auto-MDIX for crossover and polarity detection. */
927 lan78xx_set_mdix_auto(sc);
929 /* Enable all modes. */
930 lan78xx_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_ANAR,
931 ANAR_10 | ANAR_10_FD | ANAR_TX | ANAR_TX_FD |
932 ANAR_CSMA | ANAR_FC | ANAR_PAUSE_ASYM);
934 /* Restart auto-negotation. */
935 bmcr |= BMCR_STARTNEG;
937 lan78xx_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_BMCR, bmcr);
938 bmcr = lan78xx_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_BMCR);
940 /* Configure LED Modes. */
941 if (sc->sc_led_modes_mask != 0) {
942 lmsr = lan78xx_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno,
944 lmsr &= ~sc->sc_led_modes_mask;
945 lmsr |= sc->sc_led_modes;
946 lan78xx_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno,
947 MUGE_PHY_LED_MODE, lmsr);
950 /* Enable appropriate LEDs. */
951 if (sc->sc_leds != 0 &&
952 lan78xx_read_reg(sc, ETH_HW_CFG, &hw_reg) == 0) {
953 hw_reg &= ~(ETH_HW_CFG_LEDO_EN_ | ETH_HW_CFG_LED1_EN_ |
954 ETH_HW_CFG_LED2_EN_ | ETH_HW_CFG_LED3_EN_ );
955 hw_reg |= sc->sc_leds;
956 lan78xx_write_reg(sc, ETH_HW_CFG, hw_reg);
962 * lan78xx_chip_init - Initialises the chip after power on
963 * @sc: driver soft context
965 * This initialisation sequence is modelled on the procedure in the Linux
969 * Returns 0 on success or an error code on failure.
972 lan78xx_chip_init(struct muge_softc *sc)
978 MUGE_LOCK_ASSERT(sc, MA_OWNED);
980 /* Enter H/W config mode. */
981 lan78xx_write_reg(sc, ETH_HW_CFG, ETH_HW_CFG_LRST_);
983 if ((err = lan78xx_wait_for_bits(sc, ETH_HW_CFG, ETH_HW_CFG_LRST_)) !=
986 "timed-out waiting for lite reset to complete\n");
990 /* Set the mac address. */
991 if ((err = lan78xx_setmacaddress(sc, sc->sc_ue.ue_eaddr)) != 0) {
992 muge_warn_printf(sc, "failed to set the MAC address\n");
996 /* Read and display the revision register. */
997 if ((err = lan78xx_read_reg(sc, ETH_ID_REV, &buf)) < 0) {
998 muge_warn_printf(sc, "failed to read ETH_ID_REV (err = %d)\n",
1002 sc->chipid = (buf & ETH_ID_REV_CHIP_ID_MASK_) >> 16;
1003 sc->chiprev = buf & ETH_ID_REV_CHIP_REV_MASK_;
1004 switch (sc->chipid) {
1005 case ETH_ID_REV_CHIP_ID_7800_:
1006 case ETH_ID_REV_CHIP_ID_7850_:
1009 muge_warn_printf(sc, "Chip ID 0x%04x not yet supported\n",
1013 device_printf(sc->sc_ue.ue_dev, "Chip ID 0x%04x rev %04x\n", sc->chipid,
1016 /* Respond to BULK-IN tokens with a NAK when RX FIFO is empty. */
1017 if ((err = lan78xx_read_reg(sc, ETH_USB_CFG0, &buf)) != 0) {
1018 muge_warn_printf(sc, "failed to read ETH_USB_CFG0 (err=%d)\n", err);
1021 buf |= ETH_USB_CFG_BIR_;
1022 lan78xx_write_reg(sc, ETH_USB_CFG0, buf);
1025 * XXX LTM support will go here.
1028 /* Configuring the burst cap. */
1029 switch (usbd_get_speed(sc->sc_ue.ue_udev)) {
1030 case USB_SPEED_SUPER:
1031 burst_cap = MUGE_DEFAULT_BURST_CAP_SIZE/MUGE_SS_USB_PKT_SIZE;
1033 case USB_SPEED_HIGH:
1034 burst_cap = MUGE_DEFAULT_BURST_CAP_SIZE/MUGE_HS_USB_PKT_SIZE;
1037 burst_cap = MUGE_DEFAULT_BURST_CAP_SIZE/MUGE_FS_USB_PKT_SIZE;
1040 lan78xx_write_reg(sc, ETH_BURST_CAP, burst_cap);
1042 /* Set the default bulk in delay (same value from Linux driver). */
1043 lan78xx_write_reg(sc, ETH_BULK_IN_DLY, MUGE_DEFAULT_BULK_IN_DELAY);
1045 /* Multiple ethernet frames per USB packets. */
1046 err = lan78xx_read_reg(sc, ETH_HW_CFG, &buf);
1047 buf |= ETH_HW_CFG_MEF_;
1048 err = lan78xx_write_reg(sc, ETH_HW_CFG, buf);
1050 /* Enable burst cap. */
1051 if ((err = lan78xx_read_reg(sc, ETH_USB_CFG0, &buf)) < 0) {
1052 muge_warn_printf(sc, "failed to read ETH_USB_CFG0 (err=%d)\n",
1056 buf |= ETH_USB_CFG_BCE_;
1057 err = lan78xx_write_reg(sc, ETH_USB_CFG0, buf);
1060 * Set FCL's RX and TX FIFO sizes: according to data sheet this is
1061 * already the default value. But we initialize it to the same value
1062 * anyways, as that's what the Linux driver does.
1065 buf = (MUGE_MAX_RX_FIFO_SIZE - 512) / 512;
1066 err = lan78xx_write_reg(sc, ETH_FCT_RX_FIFO_END, buf);
1068 buf = (MUGE_MAX_TX_FIFO_SIZE - 512) / 512;
1069 err = lan78xx_write_reg(sc, ETH_FCT_TX_FIFO_END, buf);
1071 /* Enabling interrupts. (Not using them for now) */
1072 err = lan78xx_write_reg(sc, ETH_INT_STS, ETH_INT_STS_CLEAR_ALL_);
1075 * Initializing flow control registers to 0. These registers are
1076 * properly set is handled in link-reset function in the Linux driver.
1078 err = lan78xx_write_reg(sc, ETH_FLOW, 0);
1079 err = lan78xx_write_reg(sc, ETH_FCT_FLOW, 0);
1082 * Settings for the RFE, we enable broadcast and destination address
1083 * perfect filtering.
1085 err = lan78xx_read_reg(sc, ETH_RFE_CTL, &buf);
1086 buf |= ETH_RFE_CTL_BCAST_EN_ | ETH_RFE_CTL_DA_PERFECT_;
1087 err = lan78xx_write_reg(sc, ETH_RFE_CTL, buf);
1090 * At this point the Linux driver writes multicast tables, and enables
1091 * checksum engines. But in FreeBSD that gets done in muge_init,
1092 * which gets called when the interface is brought up.
1095 /* Reset the PHY. */
1096 lan78xx_write_reg(sc, ETH_PMT_CTL, ETH_PMT_CTL_PHY_RST_);
1097 if ((err = lan78xx_wait_for_bits(sc, ETH_PMT_CTL,
1098 ETH_PMT_CTL_PHY_RST_)) != 0) {
1099 muge_warn_printf(sc,
1100 "timed-out waiting for phy reset to complete\n");
1104 err = lan78xx_read_reg(sc, ETH_MAC_CR, &buf);
1105 if (sc->chipid == ETH_ID_REV_CHIP_ID_7800_ &&
1106 !lan78xx_eeprom_present(sc)) {
1107 /* Set automatic duplex and speed on LAN7800 without EEPROM. */
1108 buf |= ETH_MAC_CR_AUTO_DUPLEX_ | ETH_MAC_CR_AUTO_SPEED_;
1110 err = lan78xx_write_reg(sc, ETH_MAC_CR, buf);
1113 * Enable PHY interrupts (Not really getting used for now)
1114 * ETH_INT_EP_CTL: interrupt endpoint control register
1115 * phy events cause interrupts to be issued
1117 err = lan78xx_read_reg(sc, ETH_INT_EP_CTL, &buf);
1118 buf |= ETH_INT_ENP_PHY_INT;
1119 err = lan78xx_write_reg(sc, ETH_INT_EP_CTL, buf);
1122 * Enables mac's transmitter. It will transmit frames from the buffer
1125 err = lan78xx_read_reg(sc, ETH_MAC_TX, &buf);
1126 buf |= ETH_MAC_TX_TXEN_;
1127 err = lan78xx_write_reg(sc, ETH_MAC_TX, buf);
1129 /* FIFO is capable of transmitting frames to MAC. */
1130 err = lan78xx_read_reg(sc, ETH_FCT_TX_CTL, &buf);
1131 buf |= ETH_FCT_TX_CTL_EN_;
1132 err = lan78xx_write_reg(sc, ETH_FCT_TX_CTL, buf);
1135 * Set max frame length. In linux this is dev->mtu (which by default
1136 * is 1500) + VLAN_ETH_HLEN = 1518.
1138 err = lan78xx_set_rx_max_frame_length(sc, ETHER_MAX_LEN);
1140 /* Initialise the PHY. */
1141 if ((err = lan78xx_phy_init(sc)) != 0)
1144 /* Enable MAC RX. */
1145 err = lan78xx_read_reg(sc, ETH_MAC_RX, &buf);
1146 buf |= ETH_MAC_RX_EN_;
1147 err = lan78xx_write_reg(sc, ETH_MAC_RX, buf);
1149 /* Enable FIFO controller RX. */
1150 err = lan78xx_read_reg(sc, ETH_FCT_RX_CTL, &buf);
1151 buf |= ETH_FCT_TX_CTL_EN_;
1152 err = lan78xx_write_reg(sc, ETH_FCT_RX_CTL, buf);
1154 sc->sc_flags |= MUGE_FLAG_INIT_DONE;
1158 muge_err_printf(sc, "lan78xx_chip_init failed (err=%d)\n", err);
1163 muge_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
1165 struct muge_softc *sc = usbd_xfer_softc(xfer);
1166 struct usb_ether *ue = &sc->sc_ue;
1167 struct ifnet *ifp = uether_getifp(ue);
1169 struct usb_page_cache *pc;
1171 uint32_t rx_cmd_a, rx_cmd_b;
1176 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
1177 muge_dbg_printf(sc, "rx : actlen %d\n", actlen);
1179 switch (USB_GET_STATE(xfer)) {
1180 case USB_ST_TRANSFERRED:
1183 * There is always a zero length frame after bringing the
1186 if (actlen < (sizeof(rx_cmd_a) + ETHER_CRC_LEN))
1190 * There may be multiple packets in the USB frame. Each will
1191 * have a header and each needs to have its own mbuf allocated
1192 * and populated for it.
1194 pc = usbd_xfer_get_frame(xfer, 0);
1197 while (off < actlen) {
1199 /* The frame header is aligned on a 4 byte boundary. */
1200 off = ((off + 0x3) & ~0x3);
1202 /* Extract RX CMD A. */
1203 if (off + sizeof(rx_cmd_a) > actlen)
1205 usbd_copy_out(pc, off, &rx_cmd_a, sizeof(rx_cmd_a));
1206 off += (sizeof(rx_cmd_a));
1207 rx_cmd_a = le32toh(rx_cmd_a);
1210 /* Extract RX CMD B. */
1211 if (off + sizeof(rx_cmd_b) > actlen)
1213 usbd_copy_out(pc, off, &rx_cmd_b, sizeof(rx_cmd_b));
1214 off += (sizeof(rx_cmd_b));
1215 rx_cmd_b = le32toh(rx_cmd_b);
1218 /* Extract RX CMD C. */
1219 if (off + sizeof(rx_cmd_c) > actlen)
1221 usbd_copy_out(pc, off, &rx_cmd_c, sizeof(rx_cmd_c));
1222 off += (sizeof(rx_cmd_c));
1223 rx_cmd_c = le16toh(rx_cmd_c);
1228 pktlen = (rx_cmd_a & RX_CMD_A_LEN_MASK_);
1231 "rx_cmd_a 0x%08x rx_cmd_b 0x%08x rx_cmd_c 0x%04x "
1232 " pktlen %d actlen %d off %d\n",
1233 rx_cmd_a, rx_cmd_b, rx_cmd_c, pktlen, actlen, off);
1235 if (rx_cmd_a & RX_CMD_A_RED_) {
1237 "rx error (hdr 0x%08x)\n", rx_cmd_a);
1238 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
1240 /* Ethernet frame too big or too small? */
1241 if ((pktlen < ETHER_HDR_LEN) ||
1242 (pktlen > (actlen - off)))
1245 /* Create a new mbuf to store the packet. */
1246 m = uether_newbuf();
1248 muge_warn_printf(sc,
1249 "failed to create new mbuf\n");
1250 if_inc_counter(ifp, IFCOUNTER_IQDROPS,
1255 usbd_copy_out(pc, off, mtod(m, uint8_t *),
1259 * Check if RX checksums are computed, and
1262 if ((ifp->if_capabilities & IFCAP_RXCSUM) &&
1263 !(rx_cmd_a & RX_CMD_A_ICSM_)) {
1264 struct ether_header *eh;
1265 eh = mtod(m, struct ether_header *);
1267 * Remove the extra 2 bytes of the csum
1269 * The checksum appears to be
1270 * simplistically calculated over the
1271 * protocol headers up to the end of the
1272 * eth frame. Which means if the eth
1273 * frame is padded the csum calculation
1274 * is incorrectly performed over the
1275 * padding bytes as well. Therefore to
1276 * be safe we ignore the H/W csum on
1277 * frames less than or equal to
1280 * Protocols checksummed:
1281 * TCP, UDP, ICMP, IGMP, IP
1283 if (pktlen > ETHER_MIN_LEN) {
1284 m->m_pkthdr.csum_flags |=
1288 * Copy the checksum from the
1289 * last 2 bytes of the transfer
1290 * and put in the csum_data
1295 &m->m_pkthdr.csum_data, 2);
1298 * The data is copied in network
1299 * order, but the csum algorithm
1300 * in the kernel expects it to
1301 * be in host network order.
1303 m->m_pkthdr.csum_data =
1304 ntohs(m->m_pkthdr.csum_data);
1307 "RX checksum offloaded (0x%04x)\n",
1308 m->m_pkthdr.csum_data);
1312 /* Enqueue the mbuf on the receive queue. */
1313 if (pktlen < (4 + ETHER_HDR_LEN)) {
1317 /* Remove 4 trailing bytes */
1318 uether_rxmbuf(ue, m, pktlen - 4);
1322 * Update the offset to move to the next potential
1331 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1332 usbd_transfer_submit(xfer);
1337 if (error != USB_ERR_CANCELLED) {
1338 muge_warn_printf(sc, "bulk read error, %s\n",
1339 usbd_errstr(error));
1340 usbd_xfer_set_stall(xfer);
1348 * muge_bulk_write_callback - Write callback used to send ethernet frame(s)
1349 * @xfer: the USB transfer
1350 * @error: error code if the transfers is in an errored state
1352 * The main write function that pulls ethernet frames off the queue and
1357 muge_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
1359 struct muge_softc *sc = usbd_xfer_softc(xfer);
1360 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
1361 struct usb_page_cache *pc;
1364 uint32_t frm_len = 0, tx_cmd_a = 0, tx_cmd_b = 0;
1366 switch (USB_GET_STATE(xfer)) {
1367 case USB_ST_TRANSFERRED:
1369 "USB TRANSFER status: USB_ST_TRANSFERRED\n");
1370 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1373 muge_dbg_printf(sc, "USB TRANSFER status: USB_ST_SETUP\n");
1375 if ((sc->sc_flags & MUGE_FLAG_LINK) == 0 ||
1376 (ifp->if_drv_flags & IFF_DRV_OACTIVE) != 0) {
1378 "sc->sc_flags & MUGE_FLAG_LINK: %d\n",
1379 (sc->sc_flags & MUGE_FLAG_LINK));
1381 "ifp->if_drv_flags & IFF_DRV_OACTIVE: %d\n",
1382 (ifp->if_drv_flags & IFF_DRV_OACTIVE));
1384 "USB TRANSFER not sending: no link or controller is busy \n");
1386 * Don't send anything if there is no link or
1387 * controller is busy.
1391 for (nframes = 0; nframes < 16 &&
1392 !IFQ_DRV_IS_EMPTY(&ifp->if_snd); nframes++) {
1393 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1396 usbd_xfer_set_frame_offset(xfer, nframes * MCLBYTES,
1399 pc = usbd_xfer_get_frame(xfer, nframes);
1402 * Each frame is prefixed with two 32-bit values
1403 * describing the length of the packet and buffer.
1405 tx_cmd_a = (m->m_pkthdr.len & TX_CMD_A_LEN_MASK_) |
1407 tx_cmd_a = htole32(tx_cmd_a);
1408 usbd_copy_in(pc, 0, &tx_cmd_a, sizeof(tx_cmd_a));
1412 /* TCP LSO Support will probably be implemented here. */
1413 tx_cmd_b = htole32(tx_cmd_b);
1414 usbd_copy_in(pc, 4, &tx_cmd_b, sizeof(tx_cmd_b));
1418 /* Next copy in the actual packet */
1419 usbd_m_copy_in(pc, frm_len, m, 0, m->m_pkthdr.len);
1420 frm_len += m->m_pkthdr.len;
1422 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
1425 * If there's a BPF listener, bounce a copy of this
1431 /* Set frame length. */
1432 usbd_xfer_set_frame_len(xfer, nframes, frm_len);
1435 muge_dbg_printf(sc, "USB TRANSFER nframes: %d\n", nframes);
1437 muge_dbg_printf(sc, "USB TRANSFER submit attempt\n");
1438 usbd_xfer_set_frames(xfer, nframes);
1439 usbd_transfer_submit(xfer);
1440 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1445 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1446 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1448 if (error != USB_ERR_CANCELLED) {
1450 "usb error on tx: %s\n", usbd_errstr(error));
1451 usbd_xfer_set_stall(xfer);
1459 * muge_set_mac_addr - Initiailizes NIC MAC address
1460 * @ue: the USB ethernet device
1462 * Tries to obtain MAC address from number of sources: registers,
1463 * EEPROM, DTB blob. If all sources fail - generates random MAC.
1466 muge_set_mac_addr(struct usb_ether *ue)
1468 struct muge_softc *sc = uether_getsc(ue);
1469 uint32_t mac_h, mac_l;
1471 memset(ue->ue_eaddr, 0xff, ETHER_ADDR_LEN);
1474 lan78xx_read_reg(sc, 0, &val);
1476 /* Read current MAC address from RX_ADDRx registers. */
1477 if ((lan78xx_read_reg(sc, ETH_RX_ADDRL, &mac_l) == 0) &&
1478 (lan78xx_read_reg(sc, ETH_RX_ADDRH, &mac_h) == 0)) {
1479 ue->ue_eaddr[5] = (uint8_t)((mac_h >> 8) & 0xff);
1480 ue->ue_eaddr[4] = (uint8_t)((mac_h) & 0xff);
1481 ue->ue_eaddr[3] = (uint8_t)((mac_l >> 24) & 0xff);
1482 ue->ue_eaddr[2] = (uint8_t)((mac_l >> 16) & 0xff);
1483 ue->ue_eaddr[1] = (uint8_t)((mac_l >> 8) & 0xff);
1484 ue->ue_eaddr[0] = (uint8_t)((mac_l) & 0xff);
1488 * If RX_ADDRx did not provide a valid MAC address, try EEPROM. If that
1489 * doesn't work, try OTP. Whether any of these methods work or not, try
1490 * FDT data, because it is allowed to override the EEPROM/OTP values.
1492 if (ETHER_IS_VALID(ue->ue_eaddr)) {
1493 muge_dbg_printf(sc, "MAC assigned from registers\n");
1494 } else if (lan78xx_eeprom_present(sc) && lan78xx_eeprom_read_raw(sc,
1495 ETH_E2P_MAC_OFFSET, ue->ue_eaddr, ETHER_ADDR_LEN) == 0 &&
1496 ETHER_IS_VALID(ue->ue_eaddr)) {
1497 muge_dbg_printf(sc, "MAC assigned from EEPROM\n");
1498 } else if (lan78xx_otp_read(sc, OTP_MAC_OFFSET, ue->ue_eaddr,
1499 ETHER_ADDR_LEN) == 0 && ETHER_IS_VALID(ue->ue_eaddr)) {
1500 muge_dbg_printf(sc, "MAC assigned from OTP\n");
1504 /* ue->ue_eaddr modified only if config exists for this dev instance. */
1505 usb_fdt_get_mac_addr(ue->ue_dev, ue);
1506 if (ETHER_IS_VALID(ue->ue_eaddr)) {
1507 muge_dbg_printf(sc, "MAC assigned from FDT data\n");
1511 if (!ETHER_IS_VALID(ue->ue_eaddr)) {
1512 muge_dbg_printf(sc, "MAC assigned randomly\n");
1513 arc4rand(ue->ue_eaddr, ETHER_ADDR_LEN, 0);
1514 ue->ue_eaddr[0] &= ~0x01; /* unicast */
1515 ue->ue_eaddr[0] |= 0x02; /* locally administered */
1520 * muge_set_leds - Initializes NIC LEDs pattern
1521 * @ue: the USB ethernet device
1523 * Tries to store the LED modes.
1524 * Supports only DTB blob like the Linux driver does.
1527 muge_set_leds(struct usb_ether *ue)
1530 struct muge_softc *sc = uether_getsc(ue);
1532 pcell_t modes[4]; /* 4 LEDs are possible */
1536 if ((node = usb_fdt_get_node(ue->ue_dev, ue->ue_udev)) != -1 &&
1537 (proplen = OF_getencprop(node, "microchip,led-modes", modes,
1538 sizeof(modes))) > 0) {
1539 count = proplen / sizeof( uint32_t );
1540 sc->sc_leds = (count > 0) * ETH_HW_CFG_LEDO_EN_ |
1541 (count > 1) * ETH_HW_CFG_LED1_EN_ |
1542 (count > 2) * ETH_HW_CFG_LED2_EN_ |
1543 (count > 3) * ETH_HW_CFG_LED3_EN_;
1544 while (count-- > 0) {
1545 sc->sc_led_modes |= (modes[count] & 0xf) << (4 * count);
1546 sc->sc_led_modes_mask |= 0xf << (4 * count);
1548 muge_dbg_printf(sc, "LED modes set from FDT data\n");
1554 * muge_attach_post - Called after the driver attached to the USB interface
1555 * @ue: the USB ethernet device
1557 * This is where the chip is intialised for the first time. This is
1558 * different from the muge_init() function in that that one is designed to
1559 * setup the H/W to match the UE settings and can be called after a reset.
1563 muge_attach_post(struct usb_ether *ue)
1565 struct muge_softc *sc = uether_getsc(ue);
1567 muge_dbg_printf(sc, "Calling muge_attach_post.\n");
1569 /* Setup some of the basics */
1572 muge_set_mac_addr(ue);
1575 /* Initialise the chip for the first time */
1576 lan78xx_chip_init(sc);
1580 * muge_attach_post_sub - Called after attach to the USB interface
1581 * @ue: the USB ethernet device
1583 * Most of this is boilerplate code and copied from the base USB ethernet
1584 * driver. It has been overriden so that we can indicate to the system
1585 * that the chip supports H/W checksumming.
1588 * Returns 0 on success or a negative error code.
1591 muge_attach_post_sub(struct usb_ether *ue)
1593 struct muge_softc *sc;
1597 sc = uether_getsc(ue);
1598 muge_dbg_printf(sc, "Calling muge_attach_post_sub.\n");
1600 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
1601 ifp->if_start = uether_start;
1602 ifp->if_ioctl = muge_ioctl;
1603 ifp->if_init = uether_init;
1604 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
1605 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
1606 IFQ_SET_READY(&ifp->if_snd);
1609 * The chip supports TCP/UDP checksum offloading on TX and RX paths,
1610 * however currently only RX checksum is supported in the driver
1611 * (see top of file).
1613 ifp->if_capabilities |= IFCAP_VLAN_MTU;
1614 ifp->if_hwassist = 0;
1615 if (MUGE_DEFAULT_RX_CSUM_ENABLE)
1616 ifp->if_capabilities |= IFCAP_RXCSUM;
1618 if (MUGE_DEFAULT_TX_CSUM_ENABLE)
1619 ifp->if_capabilities |= IFCAP_TXCSUM;
1622 * In the Linux driver they also enable scatter/gather (NETIF_F_SG)
1623 * here, that's something related to socket buffers used in Linux.
1624 * FreeBSD doesn't have that as an interface feature.
1626 if (MUGE_DEFAULT_TSO_CSUM_ENABLE)
1627 ifp->if_capabilities |= IFCAP_TSO4 | IFCAP_TSO6;
1630 /* TX checksuming is disabled since not yet implemented. */
1631 ifp->if_capabilities |= IFCAP_TXCSUM;
1632 ifp->if_capenable |= IFCAP_TXCSUM;
1633 ifp->if_hwassist = CSUM_TCP | CSUM_UDP;
1636 ifp->if_capenable = ifp->if_capabilities;
1639 error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp,
1640 uether_ifmedia_upd, ue->ue_methods->ue_mii_sts,
1641 BMSR_DEFCAPMASK, sc->sc_phyno, MII_OFFSET_ANY, 0);
1648 * muge_start - Starts communication with the LAN78xx chip
1649 * @ue: USB ether interface
1652 muge_start(struct usb_ether *ue)
1654 struct muge_softc *sc = uether_getsc(ue);
1657 * Start the USB transfers, if not already started.
1659 usbd_transfer_start(sc->sc_xfer[MUGE_BULK_DT_RD]);
1660 usbd_transfer_start(sc->sc_xfer[MUGE_BULK_DT_WR]);
1664 * muge_ioctl - ioctl function for the device
1665 * @ifp: interface pointer
1666 * @cmd: the ioctl command
1667 * @data: data passed in the ioctl call, typically a pointer to struct
1670 * The ioctl routine is overridden to detect change requests for the H/W
1671 * checksum capabilities.
1674 * 0 on success and an error code on failure.
1677 muge_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1679 struct usb_ether *ue = ifp->if_softc;
1680 struct muge_softc *sc;
1686 if (cmd == SIOCSIFCAP) {
1687 sc = uether_getsc(ue);
1688 ifr = (struct ifreq *)data;
1695 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
1697 /* Modify the RX CSUM enable bits. */
1698 if ((mask & IFCAP_RXCSUM) != 0 &&
1699 (ifp->if_capabilities & IFCAP_RXCSUM) != 0) {
1700 ifp->if_capenable ^= IFCAP_RXCSUM;
1702 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1703 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1713 rc = uether_ioctl(ifp, cmd, data);
1720 * muge_reset - Reset the SMSC chip
1721 * @sc: device soft context
1724 * Should be called with the SMSC lock held.
1727 muge_reset(struct muge_softc *sc)
1729 struct usb_config_descriptor *cd;
1732 cd = usbd_get_config_descriptor(sc->sc_ue.ue_udev);
1734 err = usbd_req_set_config(sc->sc_ue.ue_udev, &sc->sc_mtx,
1735 cd->bConfigurationValue);
1737 muge_warn_printf(sc, "reset failed (ignored)\n");
1739 /* Wait a little while for the chip to get its brains in order. */
1740 uether_pause(&sc->sc_ue, hz / 100);
1742 /* Reinitialize controller to achieve full reset. */
1743 lan78xx_chip_init(sc);
1747 * muge_set_addr_filter
1749 * @sc: device soft context
1750 * @index: index of the entry to the perfect address table
1751 * @addr: address to be written
1755 muge_set_addr_filter(struct muge_softc *sc, int index,
1756 uint8_t addr[ETHER_ADDR_LEN])
1760 if ((sc) && (index > 0) && (index < MUGE_NUM_PFILTER_ADDRS_)) {
1762 tmp |= addr[2] | (tmp << 8);
1763 tmp |= addr[1] | (tmp << 8);
1764 tmp |= addr[0] | (tmp << 8);
1765 sc->sc_pfilter_table[index][1] = tmp;
1767 tmp |= addr[4] | (tmp << 8);
1768 tmp |= ETH_MAF_HI_VALID_ | ETH_MAF_HI_TYPE_DST_;
1769 sc->sc_pfilter_table[index][0] = tmp;
1774 * lan78xx_dataport_write - write to the selected RAM
1775 * @sc: The device soft context.
1776 * @ram_select: Select which RAM to access.
1777 * @addr: Starting address to write to.
1778 * @buf: word-sized buffer to write to RAM, starting at @addr.
1779 * @length: length of @buf
1783 * 0 if write successful.
1786 lan78xx_dataport_write(struct muge_softc *sc, uint32_t ram_select,
1787 uint32_t addr, uint32_t length, uint32_t *buf)
1792 MUGE_LOCK_ASSERT(sc, MA_OWNED);
1793 ret = lan78xx_wait_for_bits(sc, ETH_DP_SEL, ETH_DP_SEL_DPRDY_);
1797 ret = lan78xx_read_reg(sc, ETH_DP_SEL, &dp_sel);
1799 dp_sel &= ~ETH_DP_SEL_RSEL_MASK_;
1800 dp_sel |= ram_select;
1802 ret = lan78xx_write_reg(sc, ETH_DP_SEL, dp_sel);
1804 for (i = 0; i < length; i++) {
1805 ret = lan78xx_write_reg(sc, ETH_DP_ADDR, addr + i);
1806 ret = lan78xx_write_reg(sc, ETH_DP_DATA, buf[i]);
1807 ret = lan78xx_write_reg(sc, ETH_DP_CMD, ETH_DP_CMD_WRITE_);
1808 ret = lan78xx_wait_for_bits(sc, ETH_DP_SEL, ETH_DP_SEL_DPRDY_);
1818 * muge_multicast_write
1819 * @sc: device's soft context
1821 * Writes perfect addres filters and hash address filters to their
1822 * corresponding registers and RAMs.
1826 muge_multicast_write(struct muge_softc *sc)
1829 lan78xx_dataport_write(sc, ETH_DP_SEL_RSEL_VLAN_DA_,
1830 ETH_DP_SEL_VHF_VLAN_LEN, ETH_DP_SEL_VHF_HASH_LEN,
1831 sc->sc_mchash_table);
1833 for (i = 1; i < MUGE_NUM_PFILTER_ADDRS_; i++) {
1834 ret = lan78xx_write_reg(sc, PFILTER_HI(i), 0);
1835 ret = lan78xx_write_reg(sc, PFILTER_LO(i),
1836 sc->sc_pfilter_table[i][1]);
1837 ret = lan78xx_write_reg(sc, PFILTER_HI(i),
1838 sc->sc_pfilter_table[i][0]);
1843 * muge_hash - Calculate the hash of a mac address
1844 * @addr: The mac address to calculate the hash on
1846 * This function is used when configuring a range of multicast mac
1847 * addresses to filter on. The hash of the mac address is put in the
1848 * device's mac hash table.
1851 * Returns a value from 0-63 value which is the hash of the mac address.
1853 static inline uint32_t
1854 muge_hash(uint8_t addr[ETHER_ADDR_LEN])
1856 return (ether_crc32_be(addr, ETHER_ADDR_LEN) >> 23) & 0x1ff;
1860 * muge_setmulti - Setup multicast
1861 * @ue: usb ethernet device context
1863 * Tells the device to either accept frames with a multicast mac address,
1864 * a select group of m'cast mac addresses or just the devices mac address.
1867 * Should be called with the MUGE lock held.
1870 muge_setmulti(struct usb_ether *ue)
1872 struct muge_softc *sc = uether_getsc(ue);
1873 struct ifnet *ifp = uether_getifp(ue);
1875 struct ifmultiaddr *ifma;
1877 MUGE_LOCK_ASSERT(sc, MA_OWNED);
1879 sc->sc_rfe_ctl &= ~(ETH_RFE_CTL_UCAST_EN_ | ETH_RFE_CTL_MCAST_EN_ |
1880 ETH_RFE_CTL_DA_PERFECT_ | ETH_RFE_CTL_MCAST_HASH_);
1882 /* Initialize hash filter table. */
1883 for (i = 0; i < ETH_DP_SEL_VHF_HASH_LEN; i++)
1884 sc->sc_mchash_table[i] = 0;
1886 /* Initialize perfect filter table. */
1887 for (i = 1; i < MUGE_NUM_PFILTER_ADDRS_; i++) {
1888 sc->sc_pfilter_table[i][0] =
1889 sc->sc_pfilter_table[i][1] = 0;
1892 sc->sc_rfe_ctl |= ETH_RFE_CTL_BCAST_EN_;
1894 if (ifp->if_flags & IFF_PROMISC) {
1895 muge_dbg_printf(sc, "promiscuous mode enabled\n");
1896 sc->sc_rfe_ctl |= ETH_RFE_CTL_MCAST_EN_ | ETH_RFE_CTL_UCAST_EN_;
1897 } else if (ifp->if_flags & IFF_ALLMULTI){
1898 muge_dbg_printf(sc, "receive all multicast enabled\n");
1899 sc->sc_rfe_ctl |= ETH_RFE_CTL_MCAST_EN_;
1901 /* Lock the mac address list before hashing each of them. */
1902 if_maddr_rlock(ifp);
1903 if (!CK_STAILQ_EMPTY(&ifp->if_multiaddrs)) {
1905 CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs,
1907 /* First fill up the perfect address table. */
1908 addr = LLADDR((struct sockaddr_dl *)
1910 if (i < 33 /* XXX */) {
1911 muge_set_addr_filter(sc, i, addr);
1913 uint32_t bitnum = muge_hash(addr);
1914 sc->sc_mchash_table[bitnum / 32] |=
1915 (1 << (bitnum % 32));
1917 ETH_RFE_CTL_MCAST_HASH_;
1922 if_maddr_runlock(ifp);
1923 muge_multicast_write(sc);
1925 lan78xx_write_reg(sc, ETH_RFE_CTL, sc->sc_rfe_ctl);
1929 * muge_setpromisc - Enables/disables promiscuous mode
1930 * @ue: usb ethernet device context
1933 * Should be called with the MUGE lock held.
1936 muge_setpromisc(struct usb_ether *ue)
1938 struct muge_softc *sc = uether_getsc(ue);
1939 struct ifnet *ifp = uether_getifp(ue);
1941 muge_dbg_printf(sc, "promiscuous mode %sabled\n",
1942 (ifp->if_flags & IFF_PROMISC) ? "en" : "dis");
1944 MUGE_LOCK_ASSERT(sc, MA_OWNED);
1946 if (ifp->if_flags & IFF_PROMISC)
1947 sc->sc_rfe_ctl |= ETH_RFE_CTL_MCAST_EN_ | ETH_RFE_CTL_UCAST_EN_;
1949 sc->sc_rfe_ctl &= ~(ETH_RFE_CTL_MCAST_EN_);
1951 lan78xx_write_reg(sc, ETH_RFE_CTL, sc->sc_rfe_ctl);
1955 * muge_sethwcsum - Enable or disable H/W UDP and TCP checksumming
1956 * @sc: driver soft context
1959 * Should be called with the MUGE lock held.
1962 * Returns 0 on success or a negative error code.
1964 static int muge_sethwcsum(struct muge_softc *sc)
1966 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
1972 MUGE_LOCK_ASSERT(sc, MA_OWNED);
1974 if (ifp->if_capabilities & IFCAP_RXCSUM) {
1975 sc->sc_rfe_ctl |= ETH_RFE_CTL_IGMP_COE_ | ETH_RFE_CTL_ICMP_COE_;
1976 sc->sc_rfe_ctl |= ETH_RFE_CTL_TCPUDP_COE_ | ETH_RFE_CTL_IP_COE_;
1979 ~(ETH_RFE_CTL_IGMP_COE_ | ETH_RFE_CTL_ICMP_COE_);
1981 ~(ETH_RFE_CTL_TCPUDP_COE_ | ETH_RFE_CTL_IP_COE_);
1984 sc->sc_rfe_ctl &= ~ETH_RFE_CTL_VLAN_FILTER_;
1986 err = lan78xx_write_reg(sc, ETH_RFE_CTL, sc->sc_rfe_ctl);
1989 muge_warn_printf(sc, "failed to write ETH_RFE_CTL (err=%d)\n",
1998 * muge_ifmedia_upd - Set media options
1999 * @ifp: interface pointer
2001 * Basically boilerplate code that simply calls the mii functions to set
2002 * the media options.
2005 * The device lock must be held before this function is called.
2008 * Returns 0 on success or a negative error code.
2011 muge_ifmedia_upd(struct ifnet *ifp)
2013 struct muge_softc *sc = ifp->if_softc;
2014 muge_dbg_printf(sc, "Calling muge_ifmedia_upd.\n");
2015 struct mii_data *mii = uether_getmii(&sc->sc_ue);
2016 struct mii_softc *miisc;
2019 MUGE_LOCK_ASSERT(sc, MA_OWNED);
2021 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
2023 err = mii_mediachg(mii);
2028 * muge_init - Initialises the LAN95xx chip
2029 * @ue: USB ether interface
2031 * Called when the interface is brought up (i.e. ifconfig ue0 up), this
2032 * initialise the interface and the rx/tx pipes.
2035 * Should be called with the MUGE lock held.
2038 muge_init(struct usb_ether *ue)
2040 struct muge_softc *sc = uether_getsc(ue);
2041 muge_dbg_printf(sc, "Calling muge_init.\n");
2042 struct ifnet *ifp = uether_getifp(ue);
2043 MUGE_LOCK_ASSERT(sc, MA_OWNED);
2045 if (lan78xx_setmacaddress(sc, IF_LLADDR(ifp)))
2046 muge_dbg_printf(sc, "setting MAC address failed\n");
2048 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
2051 /* Cancel pending I/O. */
2054 /* Reset the ethernet interface. */
2057 /* Load the multicast filter. */
2060 /* TCP/UDP checksum offload engines. */
2063 usbd_xfer_set_stall(sc->sc_xfer[MUGE_BULK_DT_WR]);
2065 /* Indicate we are up and running. */
2066 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2068 /* Switch to selected media. */
2069 muge_ifmedia_upd(ifp);
2074 * muge_stop - Stops communication with the LAN78xx chip
2075 * @ue: USB ether interface
2078 muge_stop(struct usb_ether *ue)
2080 struct muge_softc *sc = uether_getsc(ue);
2081 struct ifnet *ifp = uether_getifp(ue);
2083 MUGE_LOCK_ASSERT(sc, MA_OWNED);
2085 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2086 sc->sc_flags &= ~MUGE_FLAG_LINK;
2089 * Stop all the transfers, if not already stopped.
2091 usbd_transfer_stop(sc->sc_xfer[MUGE_BULK_DT_WR]);
2092 usbd_transfer_stop(sc->sc_xfer[MUGE_BULK_DT_RD]);
2096 * muge_tick - Called periodically to monitor the state of the LAN95xx chip
2097 * @ue: USB ether interface
2099 * Simply calls the mii status functions to check the state of the link.
2102 * Should be called with the MUGE lock held.
2105 muge_tick(struct usb_ether *ue)
2108 struct muge_softc *sc = uether_getsc(ue);
2109 struct mii_data *mii = uether_getmii(&sc->sc_ue);
2111 MUGE_LOCK_ASSERT(sc, MA_OWNED);
2114 if ((sc->sc_flags & MUGE_FLAG_LINK) == 0) {
2115 lan78xx_miibus_statchg(ue->ue_dev);
2116 if ((sc->sc_flags & MUGE_FLAG_LINK) != 0)
2122 * muge_ifmedia_sts - Report current media status
2123 * @ifp: inet interface pointer
2124 * @ifmr: interface media request
2126 * Call the mii functions to get the media status.
2129 * Internally takes and releases the device lock.
2132 muge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
2134 struct muge_softc *sc = ifp->if_softc;
2135 struct mii_data *mii = uether_getmii(&sc->sc_ue);
2139 ifmr->ifm_active = mii->mii_media_active;
2140 ifmr->ifm_status = mii->mii_media_status;
2145 * muge_probe - Probe the interface.
2146 * @dev: muge device handle
2148 * Checks if the device is a match for this driver.
2151 * Returns 0 on success or an error code on failure.
2154 muge_probe(device_t dev)
2156 struct usb_attach_arg *uaa = device_get_ivars(dev);
2158 if (uaa->usb_mode != USB_MODE_HOST)
2160 if (uaa->info.bConfigIndex != MUGE_CONFIG_INDEX)
2162 if (uaa->info.bIfaceIndex != MUGE_IFACE_IDX)
2164 return (usbd_lookup_id_by_uaa(lan78xx_devs, sizeof(lan78xx_devs), uaa));
2168 * muge_attach - Attach the interface.
2169 * @dev: muge device handle
2171 * Allocate softc structures, do ifmedia setup and ethernet/BPF attach.
2174 * Returns 0 on success or a negative error code.
2177 muge_attach(device_t dev)
2179 struct usb_attach_arg *uaa = device_get_ivars(dev);
2180 struct muge_softc *sc = device_get_softc(dev);
2181 struct usb_ether *ue = &sc->sc_ue;
2182 uint8_t iface_index;
2185 sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
2187 device_set_usb_desc(dev);
2189 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
2191 /* Setup the endpoints for the Microchip LAN78xx device. */
2192 iface_index = MUGE_IFACE_IDX;
2193 err = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer,
2194 muge_config, MUGE_N_TRANSFER, sc, &sc->sc_mtx);
2196 device_printf(dev, "error: allocating USB transfers failed\n");
2202 ue->ue_udev = uaa->device;
2203 ue->ue_mtx = &sc->sc_mtx;
2204 ue->ue_methods = &muge_ue_methods;
2206 err = uether_ifattach(ue);
2208 device_printf(dev, "error: could not attach interface\n");
2212 /* Wait for lan78xx_chip_init from post-attach callback to complete. */
2213 uether_ifattach_wait(ue);
2214 if (!(sc->sc_flags & MUGE_FLAG_INIT_DONE))
2220 uether_ifdetach(ue);
2222 usbd_transfer_unsetup(sc->sc_xfer, MUGE_N_TRANSFER);
2224 mtx_destroy(&sc->sc_mtx);
2229 * muge_detach - Detach the interface.
2230 * @dev: muge device handle
2236 muge_detach(device_t dev)
2239 struct muge_softc *sc = device_get_softc(dev);
2240 struct usb_ether *ue = &sc->sc_ue;
2242 usbd_transfer_unsetup(sc->sc_xfer, MUGE_N_TRANSFER);
2243 uether_ifdetach(ue);
2244 mtx_destroy(&sc->sc_mtx);
2249 static device_method_t muge_methods[] = {
2250 /* Device interface */
2251 DEVMETHOD(device_probe, muge_probe),
2252 DEVMETHOD(device_attach, muge_attach),
2253 DEVMETHOD(device_detach, muge_detach),
2256 DEVMETHOD(bus_print_child, bus_generic_print_child),
2257 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
2260 DEVMETHOD(miibus_readreg, lan78xx_miibus_readreg),
2261 DEVMETHOD(miibus_writereg, lan78xx_miibus_writereg),
2262 DEVMETHOD(miibus_statchg, lan78xx_miibus_statchg),
2267 static driver_t muge_driver = {
2269 .methods = muge_methods,
2270 .size = sizeof(struct muge_softc),
2273 static devclass_t muge_devclass;
2275 DRIVER_MODULE(muge, uhub, muge_driver, muge_devclass, NULL, NULL);
2276 DRIVER_MODULE(miibus, muge, miibus_driver, miibus_devclass, NULL, NULL);
2277 MODULE_DEPEND(muge, uether, 1, 1, 1);
2278 MODULE_DEPEND(muge, usb, 1, 1, 1);
2279 MODULE_DEPEND(muge, ether, 1, 1, 1);
2280 MODULE_DEPEND(muge, miibus, 1, 1, 1);
2281 MODULE_VERSION(muge, 1);
2282 USB_PNP_HOST_INFO(lan78xx_devs);