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/stdint.h>
47 #include <sys/param.h>
48 #include <sys/queue.h>
49 #include <sys/types.h>
50 #include <sys/systm.h>
51 #include <sys/kernel.h>
53 #include <sys/module.h>
55 #include <sys/mutex.h>
56 #include <sys/condvar.h>
57 #include <sys/sysctl.h>
58 #include <sys/unistd.h>
59 #include <sys/callout.h>
60 #include <sys/malloc.h>
63 #include <net/ifq_var.h>
65 #include <bus/u4b/usb.h>
66 #include <bus/u4b/usbdi.h>
67 #include <bus/u4b/usbdi_util.h>
68 #include <bus/u4b/usbdevs.h>
70 #define USB_DEBUG_VAR udav_debug
71 #include <bus/u4b/usb_debug.h>
72 #include <bus/u4b/usb_process.h>
74 #include <bus/u4b/net/usb_ethernet.h>
75 #include <bus/u4b/net/if_udavreg.h>
79 static device_probe_t udav_probe;
80 static device_attach_t udav_attach;
81 static device_detach_t udav_detach;
83 static usb_callback_t udav_bulk_write_callback;
84 static usb_callback_t udav_bulk_read_callback;
85 static usb_callback_t udav_intr_callback;
87 static uether_fn_t udav_attach_post;
88 static uether_fn_t udav_init;
89 static uether_fn_t udav_stop;
90 static uether_fn_t udav_start;
91 static uether_fn_t udav_tick;
92 static uether_fn_t udav_setmulti;
93 static uether_fn_t udav_setpromisc;
95 static int udav_csr_read(struct udav_softc *, uint16_t, void *, int);
96 static int udav_csr_write(struct udav_softc *, uint16_t, void *, int);
97 static uint8_t udav_csr_read1(struct udav_softc *, uint16_t);
98 static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t);
99 static void udav_reset(struct udav_softc *);
100 static int udav_ifmedia_upd(struct ifnet *);
101 static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *);
103 static miibus_readreg_t udav_miibus_readreg;
104 static miibus_writereg_t udav_miibus_writereg;
105 static miibus_statchg_t udav_miibus_statchg;
107 static const struct usb_config udav_config[UDAV_N_TRANSFER] = {
109 [UDAV_BULK_DT_WR] = {
111 .endpoint = UE_ADDR_ANY,
112 .direction = UE_DIR_OUT,
113 .bufsize = (MCLBYTES + 2),
114 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
115 .callback = udav_bulk_write_callback,
116 .timeout = 10000, /* 10 seconds */
119 [UDAV_BULK_DT_RD] = {
121 .endpoint = UE_ADDR_ANY,
122 .direction = UE_DIR_IN,
123 .bufsize = (MCLBYTES + 3),
124 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
125 .callback = udav_bulk_read_callback,
126 .timeout = 0, /* no timeout */
129 [UDAV_INTR_DT_RD] = {
130 .type = UE_INTERRUPT,
131 .endpoint = UE_ADDR_ANY,
132 .direction = UE_DIR_IN,
133 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
134 .bufsize = 0, /* use wMaxPacketSize */
135 .callback = udav_intr_callback,
139 static device_method_t udav_methods[] = {
140 /* Device interface */
141 DEVMETHOD(device_probe, udav_probe),
142 DEVMETHOD(device_attach, udav_attach),
143 DEVMETHOD(device_detach, udav_detach),
146 DEVMETHOD(miibus_readreg, udav_miibus_readreg),
147 DEVMETHOD(miibus_writereg, udav_miibus_writereg),
148 DEVMETHOD(miibus_statchg, udav_miibus_statchg),
153 static driver_t udav_driver = {
155 .methods = udav_methods,
156 .size = sizeof(struct udav_softc),
159 static devclass_t udav_devclass;
161 DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, NULL);
162 DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, NULL, NULL);
163 MODULE_DEPEND(udav, uether, 1, 1, 1);
164 MODULE_DEPEND(udav, usb, 1, 1, 1);
165 MODULE_DEPEND(udav, ether, 1, 1, 1);
166 MODULE_DEPEND(udav, miibus, 1, 1, 1);
167 MODULE_VERSION(udav, 1);
169 static const struct usb_ether_methods udav_ue_methods = {
170 .ue_attach_post = udav_attach_post,
171 .ue_start = udav_start,
172 .ue_init = udav_init,
173 .ue_stop = udav_stop,
174 .ue_tick = udav_tick,
175 .ue_setmulti = udav_setmulti,
176 .ue_setpromisc = udav_setpromisc,
177 .ue_mii_upd = udav_ifmedia_upd,
178 .ue_mii_sts = udav_ifmedia_status,
182 static int udav_debug = 0;
184 static SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav");
185 SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RW, &udav_debug, 0,
189 #define UDAV_SETBIT(sc, reg, x) \
190 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x))
192 #define UDAV_CLRBIT(sc, reg, x) \
193 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x))
195 static const STRUCT_USB_HOST_ID udav_devs[] = {
196 /* ShanTou DM9601 USB NIC */
197 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)},
198 /* ShanTou ST268 USB NIC */
199 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)},
201 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)},
202 /* ShanTou AMD8515 USB NIC */
203 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)},
204 /* Kontron AG USB Ethernet */
205 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)},
206 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 0)},
210 udav_attach_post(struct usb_ether *ue)
212 struct udav_softc *sc = uether_getsc(ue);
214 /* reset the adapter */
217 /* Get Ethernet Address */
218 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN);
222 udav_probe(device_t dev)
224 struct usb_attach_arg *uaa = device_get_ivars(dev);
226 if (uaa->usb_mode != USB_MODE_HOST)
228 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX)
230 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX)
233 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa));
237 udav_attach(device_t dev)
239 struct usb_attach_arg *uaa = device_get_ivars(dev);
240 struct udav_softc *sc = device_get_softc(dev);
241 struct usb_ether *ue = &sc->sc_ue;
245 sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
247 device_set_usb_desc(dev);
249 lockinit(&sc->sc_lock, device_get_nameunit(dev), 0, 0);
251 iface_index = UDAV_IFACE_INDEX;
252 error = usbd_transfer_setup(uaa->device, &iface_index,
253 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_lock);
255 device_printf(dev, "allocating USB transfers failed\n");
261 ue->ue_udev = uaa->device;
262 ue->ue_lock = &sc->sc_lock;
263 ue->ue_methods = &udav_ue_methods;
265 error = uether_ifattach(ue);
267 device_printf(dev, "could not attach interface\n");
271 return (0); /* success */
275 return (ENXIO); /* failure */
279 udav_detach(device_t dev)
281 struct udav_softc *sc = device_get_softc(dev);
282 struct usb_ether *ue = &sc->sc_ue;
284 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER);
286 lockuninit(&sc->sc_lock);
293 udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf,
296 struct usb_device_request req;
300 req.bmRequestType = UT_READ_VENDOR_DEVICE;
301 req.bRequest = UDAV_REQ_MEM_READ;
302 USETW(req.wValue, 0x0000);
303 USETW(req.wIndex, offset);
304 USETW(req.wLength, len);
306 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
310 udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf,
313 struct usb_device_request req;
317 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
318 req.bRequest = UDAV_REQ_MEM_WRITE;
319 USETW(req.wValue, 0x0000);
320 USETW(req.wIndex, offset);
321 USETW(req.wLength, len);
323 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
327 udav_mem_write1(struct udav_softc *sc, uint16_t offset,
330 struct usb_device_request req;
332 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
333 req.bRequest = UDAV_REQ_MEM_WRITE1;
334 USETW(req.wValue, ch);
335 USETW(req.wIndex, offset);
336 USETW(req.wLength, 0x0000);
338 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000));
343 udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len)
345 struct usb_device_request req;
349 req.bmRequestType = UT_READ_VENDOR_DEVICE;
350 req.bRequest = UDAV_REQ_REG_READ;
351 USETW(req.wValue, 0x0000);
352 USETW(req.wIndex, offset);
353 USETW(req.wLength, len);
355 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
359 udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len)
361 struct usb_device_request req;
366 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
367 req.bRequest = UDAV_REQ_REG_WRITE;
368 USETW(req.wValue, 0x0000);
369 USETW(req.wIndex, offset);
370 USETW(req.wLength, len);
372 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
376 udav_csr_read1(struct udav_softc *sc, uint16_t offset)
380 udav_csr_read(sc, offset, &val, 1);
385 udav_csr_write1(struct udav_softc *sc, uint16_t offset,
388 struct usb_device_request req;
392 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
393 req.bRequest = UDAV_REQ_REG_WRITE1;
394 USETW(req.wValue, ch);
395 USETW(req.wIndex, offset);
396 USETW(req.wLength, 0x0000);
398 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000));
402 udav_init(struct usb_ether *ue)
404 struct udav_softc *sc = ue->ue_sc;
405 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
407 UDAV_LOCK_ASSERT(sc);
414 /* set MAC address */
415 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN);
417 /* initialize network control register */
419 /* disable loopback */
420 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1);
422 /* Initialize RX control register */
423 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC);
425 /* load multicast filter and update promiscious mode bit */
429 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN);
431 /* clear POWER_DOWN state of internal PHY */
432 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0);
433 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0);
435 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]);
437 /* XXX ifp->if_drv_flags |= IFF_DRV_RUNNING;
443 udav_reset(struct udav_softc *sc)
450 * XXX: force select internal phy.
451 * external phy routines are not tested.
453 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
455 if (sc->sc_flags & UDAV_EXT_PHY)
456 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
458 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
461 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST);
463 for (i = 0; i < UDAV_TX_TIMEOUT; i++) {
464 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST))
466 if (uether_pause(&sc->sc_ue, hz / 100))
470 uether_pause(&sc->sc_ue, hz / 100);
475 udav_setmulti(struct usb_ether *ue)
477 struct udav_softc *sc = ue->ue_sc;
478 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
479 struct ifmultiaddr *ifma;
480 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
483 UDAV_LOCK_ASSERT(sc);
485 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
486 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC);
490 /* first, zot all the existing hash bits */
491 memset(hashtbl, 0x00, sizeof(hashtbl));
492 hashtbl[7] |= 0x80; /* broadcast address */
493 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl));
495 /* now program new ones */
496 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
498 if (ifma->ifma_addr->sa_family != AF_LINK)
500 h = ether_crc32_be(LLADDR((struct sockaddr_dl *)
501 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26;
502 hashtbl[h / 8] |= 1 << (h % 8);
505 /* disable all multicast */
506 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL);
508 /* write hash value to the register */
509 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl));
513 udav_setpromisc(struct usb_ether *ue)
515 struct udav_softc *sc = ue->ue_sc;
516 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
519 rxmode = udav_csr_read1(sc, UDAV_RCR);
520 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC);
522 if (ifp->if_flags & IFF_PROMISC)
523 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC;
524 else if (ifp->if_flags & IFF_ALLMULTI)
525 rxmode |= UDAV_RCR_ALL;
527 /* write new mode bits */
528 udav_csr_write1(sc, UDAV_RCR, rxmode);
532 udav_start(struct usb_ether *ue)
534 struct udav_softc *sc = ue->ue_sc;
537 * start the USB transfers, if not already started:
539 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]);
540 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]);
541 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]);
545 udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
547 struct udav_softc *sc = usbd_xfer_softc(xfer);
548 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
549 struct usb_page_cache *pc;
555 switch (USB_GET_STATE(xfer)) {
556 case USB_ST_TRANSFERRED:
557 DPRINTFN(11, "transfer complete\n");
558 IFNET_STAT_INC(ifp, opackets, 1);
563 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) {
565 * don't send anything if there is no link !
569 m = ifq_dequeue(&ifp->if_snd, NULL);
573 if (m->m_pkthdr.len > MCLBYTES)
574 m->m_pkthdr.len = MCLBYTES;
575 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) {
576 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len;
581 temp_len = (m->m_pkthdr.len + extra_len);
584 * the frame length is specified in the first 2 bytes of the
587 buf[0] = (uint8_t)(temp_len);
588 buf[1] = (uint8_t)(temp_len >> 8);
592 pc = usbd_xfer_get_frame(xfer, 0);
593 usbd_copy_in(pc, 0, buf, 2);
594 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len);
597 usbd_frame_zero(pc, temp_len - extra_len, extra_len);
599 * if there's a BPF listener, bounce a copy
600 * of this frame to him:
606 usbd_xfer_set_frame_len(xfer, 0, temp_len);
607 usbd_transfer_submit(xfer);
611 DPRINTFN(11, "transfer error, %s\n",
614 IFNET_STAT_INC(ifp, oerrors, 1);
616 if (error != USB_ERR_CANCELLED) {
617 /* try to clear stall first */
618 usbd_xfer_set_stall(xfer);
626 udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
628 struct udav_softc *sc = usbd_xfer_softc(xfer);
629 struct usb_ether *ue = &sc->sc_ue;
630 struct ifnet *ifp = uether_getifp(ue);
631 struct usb_page_cache *pc;
632 struct udav_rxpkt stat;
636 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
638 switch (USB_GET_STATE(xfer)) {
639 case USB_ST_TRANSFERRED:
641 if (actlen < sizeof(stat) + ETHER_CRC_LEN) {
642 IFNET_STAT_INC(ifp, ierrors, 1);
645 pc = usbd_xfer_get_frame(xfer, 0);
646 usbd_copy_out(pc, 0, &stat, sizeof(stat));
647 actlen -= sizeof(stat);
648 len = min(actlen, le16toh(stat.pktlen));
649 len -= ETHER_CRC_LEN;
651 if (stat.rxstat & UDAV_RSR_LCS) {
652 IFNET_STAT_INC(ifp, collisions, 1);
655 if (stat.rxstat & UDAV_RSR_ERR) {
656 IFNET_STAT_INC(ifp, ierrors, 1);
659 uether_rxbuf(ue, pc, sizeof(stat), len);
663 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
664 usbd_transfer_submit(xfer);
669 DPRINTF("bulk read error, %s\n",
672 if (error != USB_ERR_CANCELLED) {
673 /* try to clear stall first */
674 usbd_xfer_set_stall(xfer);
682 udav_intr_callback(struct usb_xfer *xfer, usb_error_t error)
684 switch (USB_GET_STATE(xfer)) {
685 case USB_ST_TRANSFERRED:
688 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
689 usbd_transfer_submit(xfer);
693 if (error != USB_ERR_CANCELLED) {
694 /* try to clear stall first */
695 usbd_xfer_set_stall(xfer);
703 udav_stop(struct usb_ether *ue)
705 struct udav_softc *sc = ue->ue_sc;
707 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
710 UDAV_LOCK_ASSERT(sc);
713 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
715 sc->sc_flags &= ~UDAV_FLAG_LINK;
718 * stop all the transfers, if not already stopped:
720 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]);
721 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]);
722 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]);
728 udav_ifmedia_upd(struct ifnet *ifp)
730 struct udav_softc *sc = ifp->if_softc;
731 struct mii_data *mii = GET_MII(sc);
732 struct mii_softc *miisc;
734 kprintf("ifmedia upd\n");
736 UDAV_LOCK_ASSERT(sc);
738 sc->sc_flags &= ~UDAV_FLAG_LINK;
739 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
740 mii_phy_reset(miisc);
746 udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr)
748 struct udav_softc *sc = ifp->if_softc;
749 struct mii_data *mii = GET_MII(sc);
751 kprintf("ifmedia status\n");
755 ifmr->ifm_active = mii->mii_media_active;
756 ifmr->ifm_status = mii->mii_media_status;
761 udav_tick(struct usb_ether *ue)
763 struct udav_softc *sc = ue->ue_sc;
764 struct mii_data *mii = GET_MII(sc);
766 UDAV_LOCK_ASSERT(sc);
769 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0
770 && mii->mii_media_status & IFM_ACTIVE &&
771 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
772 sc->sc_flags |= UDAV_FLAG_LINK;
778 udav_miibus_readreg(device_t dev, int phy, int reg)
780 struct udav_softc *sc = device_get_softc(dev);
785 /* XXX: one PHY only for the internal PHY */
789 locked = lockowned(&sc->sc_lock);
793 /* select internal PHY and set PHY register address */
794 udav_csr_write1(sc, UDAV_EPAR,
795 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
797 /* select PHY operation and start read command */
798 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR);
800 /* XXX: should we wait? */
802 /* end read command */
803 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR);
805 /* retrieve the result from data registers */
806 udav_csr_read(sc, UDAV_EPDRL, val, 2);
808 data16 = (val[0] | (val[1] << 8));
810 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n",
819 udav_miibus_writereg(device_t dev, int phy, int reg, int data)
821 struct udav_softc *sc = device_get_softc(dev);
825 /* XXX: one PHY only for the internal PHY */
829 locked = lockowned(&sc->sc_lock);
833 /* select internal PHY and set PHY register address */
834 udav_csr_write1(sc, UDAV_EPAR,
835 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
837 /* put the value to the data registers */
838 val[0] = (data & 0xff);
839 val[1] = (data >> 8) & 0xff;
840 udav_csr_write(sc, UDAV_EPDRL, val, 2);
842 /* select PHY operation and start write command */
843 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW);
845 /* XXX: should we wait? */
847 /* end write command */
848 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW);
856 udav_miibus_statchg(device_t dev)