1 /* $NetBSD: if_udav.c,v 1.2 2003/09/04 15:17:38 tsutsui Exp $ */
2 /* $nabe: if_udav.c,v 1.3 2003/08/21 16:57:19 nabe Exp $ */
6 * Shingo WATANABE <nabe@nabechan.org>. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * DM9601(DAVICOM USB to Ethernet MAC Controller with Integrated 10/100 PHY)
36 * The spec can be found at the following url.
37 * http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9601-DS-P01-930914.pdf
42 * Interrupt Endpoint support
46 #include <sys/cdefs.h>
47 __FBSDID("$FreeBSD$");
49 #include <sys/stdint.h>
50 #include <sys/stddef.h>
51 #include <sys/param.h>
52 #include <sys/queue.h>
53 #include <sys/types.h>
54 #include <sys/systm.h>
55 #include <sys/kernel.h>
57 #include <sys/module.h>
59 #include <sys/mutex.h>
60 #include <sys/condvar.h>
61 #include <sys/sysctl.h>
63 #include <sys/unistd.h>
64 #include <sys/callout.h>
65 #include <sys/malloc.h>
68 #include <dev/usb/usb.h>
69 #include <dev/usb/usbdi.h>
70 #include <dev/usb/usbdi_util.h>
73 #define USB_DEBUG_VAR udav_debug
74 #include <dev/usb/usb_debug.h>
75 #include <dev/usb/usb_process.h>
77 #include <dev/usb/net/usb_ethernet.h>
78 #include <dev/usb/net/if_udavreg.h>
82 static device_probe_t udav_probe;
83 static device_attach_t udav_attach;
84 static device_detach_t udav_detach;
86 static usb_callback_t udav_bulk_write_callback;
87 static usb_callback_t udav_bulk_read_callback;
88 static usb_callback_t udav_intr_callback;
90 static uether_fn_t udav_attach_post;
91 static uether_fn_t udav_init;
92 static uether_fn_t udav_stop;
93 static uether_fn_t udav_start;
94 static uether_fn_t udav_tick;
95 static uether_fn_t udav_setmulti;
96 static uether_fn_t udav_setpromisc;
98 static int udav_csr_read(struct udav_softc *, uint16_t, void *, int);
99 static int udav_csr_write(struct udav_softc *, uint16_t, void *, int);
100 static uint8_t udav_csr_read1(struct udav_softc *, uint16_t);
101 static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t);
102 static void udav_reset(struct udav_softc *);
103 static int udav_ifmedia_upd(struct ifnet *);
104 static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *);
106 static miibus_readreg_t udav_miibus_readreg;
107 static miibus_writereg_t udav_miibus_writereg;
108 static miibus_statchg_t udav_miibus_statchg;
110 static const struct usb_config udav_config[UDAV_N_TRANSFER] = {
112 [UDAV_BULK_DT_WR] = {
114 .endpoint = UE_ADDR_ANY,
115 .direction = UE_DIR_OUT,
116 .bufsize = (MCLBYTES + 2),
117 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
118 .callback = udav_bulk_write_callback,
119 .timeout = 10000, /* 10 seconds */
122 [UDAV_BULK_DT_RD] = {
124 .endpoint = UE_ADDR_ANY,
125 .direction = UE_DIR_IN,
126 .bufsize = (MCLBYTES + 3),
127 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
128 .callback = udav_bulk_read_callback,
129 .timeout = 0, /* no timeout */
132 [UDAV_INTR_DT_RD] = {
133 .type = UE_INTERRUPT,
134 .endpoint = UE_ADDR_ANY,
135 .direction = UE_DIR_IN,
136 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
137 .bufsize = 0, /* use wMaxPacketSize */
138 .callback = udav_intr_callback,
142 static device_method_t udav_methods[] = {
143 /* Device interface */
144 DEVMETHOD(device_probe, udav_probe),
145 DEVMETHOD(device_attach, udav_attach),
146 DEVMETHOD(device_detach, udav_detach),
149 DEVMETHOD(bus_print_child, bus_generic_print_child),
150 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
153 DEVMETHOD(miibus_readreg, udav_miibus_readreg),
154 DEVMETHOD(miibus_writereg, udav_miibus_writereg),
155 DEVMETHOD(miibus_statchg, udav_miibus_statchg),
160 static driver_t udav_driver = {
162 .methods = udav_methods,
163 .size = sizeof(struct udav_softc),
166 static devclass_t udav_devclass;
168 DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, 0);
169 DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0);
170 MODULE_DEPEND(udav, uether, 1, 1, 1);
171 MODULE_DEPEND(udav, usb, 1, 1, 1);
172 MODULE_DEPEND(udav, ether, 1, 1, 1);
173 MODULE_DEPEND(udav, miibus, 1, 1, 1);
174 MODULE_VERSION(udav, 1);
176 static const struct usb_ether_methods udav_ue_methods = {
177 .ue_attach_post = udav_attach_post,
178 .ue_start = udav_start,
179 .ue_init = udav_init,
180 .ue_stop = udav_stop,
181 .ue_tick = udav_tick,
182 .ue_setmulti = udav_setmulti,
183 .ue_setpromisc = udav_setpromisc,
184 .ue_mii_upd = udav_ifmedia_upd,
185 .ue_mii_sts = udav_ifmedia_status,
189 static int udav_debug = 0;
191 SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav");
192 SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RW, &udav_debug, 0,
196 #define UDAV_SETBIT(sc, reg, x) \
197 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x))
199 #define UDAV_CLRBIT(sc, reg, x) \
200 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x))
202 static const STRUCT_USB_HOST_ID udav_devs[] = {
203 /* ShanTou DM9601 USB NIC */
204 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)},
205 /* ShanTou ST268 USB NIC */
206 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)},
208 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)},
209 /* ShanTou AMD8515 USB NIC */
210 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)},
211 /* Kontron AG USB Ethernet */
212 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)},
213 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 0)},
217 udav_attach_post(struct usb_ether *ue)
219 struct udav_softc *sc = uether_getsc(ue);
221 /* reset the adapter */
224 /* Get Ethernet Address */
225 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN);
229 udav_probe(device_t dev)
231 struct usb_attach_arg *uaa = device_get_ivars(dev);
233 if (uaa->usb_mode != USB_MODE_HOST)
235 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX)
237 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX)
240 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa));
244 udav_attach(device_t dev)
246 struct usb_attach_arg *uaa = device_get_ivars(dev);
247 struct udav_softc *sc = device_get_softc(dev);
248 struct usb_ether *ue = &sc->sc_ue;
252 sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
254 device_set_usb_desc(dev);
256 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
258 iface_index = UDAV_IFACE_INDEX;
259 error = usbd_transfer_setup(uaa->device, &iface_index,
260 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_mtx);
262 device_printf(dev, "allocating USB transfers failed\n");
268 ue->ue_udev = uaa->device;
269 ue->ue_mtx = &sc->sc_mtx;
270 ue->ue_methods = &udav_ue_methods;
272 error = uether_ifattach(ue);
274 device_printf(dev, "could not attach interface\n");
278 return (0); /* success */
282 return (ENXIO); /* failure */
286 udav_detach(device_t dev)
288 struct udav_softc *sc = device_get_softc(dev);
289 struct usb_ether *ue = &sc->sc_ue;
291 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER);
293 mtx_destroy(&sc->sc_mtx);
300 udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf,
303 struct usb_device_request req;
307 req.bmRequestType = UT_READ_VENDOR_DEVICE;
308 req.bRequest = UDAV_REQ_MEM_READ;
309 USETW(req.wValue, 0x0000);
310 USETW(req.wIndex, offset);
311 USETW(req.wLength, len);
313 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
317 udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf,
320 struct usb_device_request req;
324 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
325 req.bRequest = UDAV_REQ_MEM_WRITE;
326 USETW(req.wValue, 0x0000);
327 USETW(req.wIndex, offset);
328 USETW(req.wLength, len);
330 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
334 udav_mem_write1(struct udav_softc *sc, uint16_t offset,
337 struct usb_device_request req;
339 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
340 req.bRequest = UDAV_REQ_MEM_WRITE1;
341 USETW(req.wValue, ch);
342 USETW(req.wIndex, offset);
343 USETW(req.wLength, 0x0000);
345 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000));
350 udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len)
352 struct usb_device_request req;
356 req.bmRequestType = UT_READ_VENDOR_DEVICE;
357 req.bRequest = UDAV_REQ_REG_READ;
358 USETW(req.wValue, 0x0000);
359 USETW(req.wIndex, offset);
360 USETW(req.wLength, len);
362 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
366 udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len)
368 struct usb_device_request req;
373 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
374 req.bRequest = UDAV_REQ_REG_WRITE;
375 USETW(req.wValue, 0x0000);
376 USETW(req.wIndex, offset);
377 USETW(req.wLength, len);
379 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
383 udav_csr_read1(struct udav_softc *sc, uint16_t offset)
387 udav_csr_read(sc, offset, &val, 1);
392 udav_csr_write1(struct udav_softc *sc, uint16_t offset,
395 struct usb_device_request req;
399 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
400 req.bRequest = UDAV_REQ_REG_WRITE1;
401 USETW(req.wValue, ch);
402 USETW(req.wIndex, offset);
403 USETW(req.wLength, 0x0000);
405 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000));
409 udav_init(struct usb_ether *ue)
411 struct udav_softc *sc = ue->ue_sc;
412 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
414 UDAV_LOCK_ASSERT(sc, MA_OWNED);
421 /* set MAC address */
422 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN);
424 /* initialize network control register */
426 /* disable loopback */
427 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1);
429 /* Initialize RX control register */
430 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC);
432 /* load multicast filter and update promiscious mode bit */
436 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN);
438 /* clear POWER_DOWN state of internal PHY */
439 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0);
440 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0);
442 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]);
444 ifp->if_drv_flags |= IFF_DRV_RUNNING;
449 udav_reset(struct udav_softc *sc)
456 * XXX: force select internal phy.
457 * external phy routines are not tested.
459 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
461 if (sc->sc_flags & UDAV_EXT_PHY)
462 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
464 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
467 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST);
469 for (i = 0; i < UDAV_TX_TIMEOUT; i++) {
470 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST))
472 if (uether_pause(&sc->sc_ue, hz / 100))
476 uether_pause(&sc->sc_ue, hz / 100);
481 udav_setmulti(struct usb_ether *ue)
483 struct udav_softc *sc = ue->ue_sc;
484 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
485 struct ifmultiaddr *ifma;
486 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
489 UDAV_LOCK_ASSERT(sc, MA_OWNED);
491 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
492 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC);
496 /* first, zot all the existing hash bits */
497 memset(hashtbl, 0x00, sizeof(hashtbl));
498 hashtbl[7] |= 0x80; /* broadcast address */
499 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl));
501 /* now program new ones */
503 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
505 if (ifma->ifma_addr->sa_family != AF_LINK)
507 h = ether_crc32_be(LLADDR((struct sockaddr_dl *)
508 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26;
509 hashtbl[h / 8] |= 1 << (h % 8);
511 if_maddr_runlock(ifp);
513 /* disable all multicast */
514 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL);
516 /* write hash value to the register */
517 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl));
521 udav_setpromisc(struct usb_ether *ue)
523 struct udav_softc *sc = ue->ue_sc;
524 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
527 rxmode = udav_csr_read1(sc, UDAV_RCR);
528 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC);
530 if (ifp->if_flags & IFF_PROMISC)
531 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC;
532 else if (ifp->if_flags & IFF_ALLMULTI)
533 rxmode |= UDAV_RCR_ALL;
535 /* write new mode bits */
536 udav_csr_write1(sc, UDAV_RCR, rxmode);
540 udav_start(struct usb_ether *ue)
542 struct udav_softc *sc = ue->ue_sc;
545 * start the USB transfers, if not already started:
547 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]);
548 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]);
549 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]);
553 udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
555 struct udav_softc *sc = usbd_xfer_softc(xfer);
556 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
557 struct usb_page_cache *pc;
563 switch (USB_GET_STATE(xfer)) {
564 case USB_ST_TRANSFERRED:
565 DPRINTFN(11, "transfer complete\n");
571 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) {
573 * don't send anything if there is no link !
577 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
581 if (m->m_pkthdr.len > MCLBYTES)
582 m->m_pkthdr.len = MCLBYTES;
583 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) {
584 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len;
589 temp_len = (m->m_pkthdr.len + extra_len);
592 * the frame length is specified in the first 2 bytes of the
595 buf[0] = (uint8_t)(temp_len);
596 buf[1] = (uint8_t)(temp_len >> 8);
600 pc = usbd_xfer_get_frame(xfer, 0);
601 usbd_copy_in(pc, 0, buf, 2);
602 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len);
605 usbd_frame_zero(pc, temp_len - extra_len, extra_len);
607 * if there's a BPF listener, bounce a copy
608 * of this frame to him:
614 usbd_xfer_set_frame_len(xfer, 0, temp_len);
615 usbd_transfer_submit(xfer);
619 DPRINTFN(11, "transfer error, %s\n",
624 if (error != USB_ERR_CANCELLED) {
625 /* try to clear stall first */
626 usbd_xfer_set_stall(xfer);
634 udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
636 struct udav_softc *sc = usbd_xfer_softc(xfer);
637 struct usb_ether *ue = &sc->sc_ue;
638 struct ifnet *ifp = uether_getifp(ue);
639 struct usb_page_cache *pc;
640 struct udav_rxpkt stat;
644 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
646 switch (USB_GET_STATE(xfer)) {
647 case USB_ST_TRANSFERRED:
649 if (actlen < sizeof(stat) + ETHER_CRC_LEN) {
653 pc = usbd_xfer_get_frame(xfer, 0);
654 usbd_copy_out(pc, 0, &stat, sizeof(stat));
655 actlen -= sizeof(stat);
656 len = min(actlen, le16toh(stat.pktlen));
657 len -= ETHER_CRC_LEN;
659 if (stat.rxstat & UDAV_RSR_LCS) {
660 ifp->if_collisions++;
663 if (stat.rxstat & UDAV_RSR_ERR) {
667 uether_rxbuf(ue, pc, sizeof(stat), len);
671 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
672 usbd_transfer_submit(xfer);
677 DPRINTF("bulk read error, %s\n",
680 if (error != USB_ERR_CANCELLED) {
681 /* try to clear stall first */
682 usbd_xfer_set_stall(xfer);
690 udav_intr_callback(struct usb_xfer *xfer, usb_error_t error)
692 switch (USB_GET_STATE(xfer)) {
693 case USB_ST_TRANSFERRED:
696 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
697 usbd_transfer_submit(xfer);
701 if (error != USB_ERR_CANCELLED) {
702 /* try to clear stall first */
703 usbd_xfer_set_stall(xfer);
711 udav_stop(struct usb_ether *ue)
713 struct udav_softc *sc = ue->ue_sc;
714 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
716 UDAV_LOCK_ASSERT(sc, MA_OWNED);
718 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
719 sc->sc_flags &= ~UDAV_FLAG_LINK;
722 * stop all the transfers, if not already stopped:
724 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]);
725 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]);
726 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]);
732 udav_ifmedia_upd(struct ifnet *ifp)
734 struct udav_softc *sc = ifp->if_softc;
735 struct mii_data *mii = GET_MII(sc);
737 UDAV_LOCK_ASSERT(sc, MA_OWNED);
739 sc->sc_flags &= ~UDAV_FLAG_LINK;
740 if (mii->mii_instance) {
741 struct mii_softc *miisc;
743 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
744 mii_phy_reset(miisc);
751 udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr)
753 struct udav_softc *sc = ifp->if_softc;
754 struct mii_data *mii = GET_MII(sc);
759 ifmr->ifm_active = mii->mii_media_active;
760 ifmr->ifm_status = mii->mii_media_status;
764 udav_tick(struct usb_ether *ue)
766 struct udav_softc *sc = ue->ue_sc;
767 struct mii_data *mii = GET_MII(sc);
769 UDAV_LOCK_ASSERT(sc, MA_OWNED);
772 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0
773 && mii->mii_media_status & IFM_ACTIVE &&
774 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
775 sc->sc_flags |= UDAV_FLAG_LINK;
781 udav_miibus_readreg(device_t dev, int phy, int reg)
783 struct udav_softc *sc = device_get_softc(dev);
788 /* XXX: one PHY only for the internal PHY */
792 locked = mtx_owned(&sc->sc_mtx);
796 /* select internal PHY and set PHY register address */
797 udav_csr_write1(sc, UDAV_EPAR,
798 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
800 /* select PHY operation and start read command */
801 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR);
803 /* XXX: should we wait? */
805 /* end read command */
806 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR);
808 /* retrieve the result from data registers */
809 udav_csr_read(sc, UDAV_EPDRL, val, 2);
811 data16 = (val[0] | (val[1] << 8));
813 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n",
822 udav_miibus_writereg(device_t dev, int phy, int reg, int data)
824 struct udav_softc *sc = device_get_softc(dev);
828 /* XXX: one PHY only for the internal PHY */
832 locked = mtx_owned(&sc->sc_mtx);
836 /* select internal PHY and set PHY register address */
837 udav_csr_write1(sc, UDAV_EPAR,
838 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
840 /* put the value to the data registers */
841 val[0] = (data & 0xff);
842 val[1] = (data >> 8) & 0xff;
843 udav_csr_write(sc, UDAV_EPDRL, val, 2);
845 /* select PHY operation and start write command */
846 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW);
848 /* XXX: should we wait? */
850 /* end write command */
851 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW);
859 udav_miibus_statchg(device_t dev)