freebsd-dev/sys/dev/usb/net/if_udav.c
Warner Losh f809f280e0 Create a USB_PNP_INFO and use it to export the existing PNP
tables. Some drivers needed some slight re-arrangement of declarations
to accommodate this. Change the USB pnp tables slightly to allow
better compatibility with the system by moving linux driver info from
start of each entry to the end. All other PNP tables in the system
have the per-device flags and such at the end of the elements rather
that at the beginning.

Differential Review: https://reviews.freebsd.org/D3458
2015-12-11 05:28:00 +00:00

882 lines
21 KiB
C

/* $NetBSD: if_udav.c,v 1.2 2003/09/04 15:17:38 tsutsui Exp $ */
/* $nabe: if_udav.c,v 1.3 2003/08/21 16:57:19 nabe Exp $ */
/* $FreeBSD$ */
/*-
* Copyright (c) 2003
* Shingo WATANABE <nabe@nabechan.org>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/*
* DM9601(DAVICOM USB to Ethernet MAC Controller with Integrated 10/100 PHY)
* The spec can be found at the following url.
* http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf
*/
/*
* TODO:
* Interrupt Endpoint support
* External PHYs
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <net/if.h>
#include <net/if_var.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR udav_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/net/usb_ethernet.h>
#include <dev/usb/net/if_udavreg.h>
/* prototypes */
static device_probe_t udav_probe;
static device_attach_t udav_attach;
static device_detach_t udav_detach;
static usb_callback_t udav_bulk_write_callback;
static usb_callback_t udav_bulk_read_callback;
static usb_callback_t udav_intr_callback;
static uether_fn_t udav_attach_post;
static uether_fn_t udav_init;
static uether_fn_t udav_stop;
static uether_fn_t udav_start;
static uether_fn_t udav_tick;
static uether_fn_t udav_setmulti;
static uether_fn_t udav_setpromisc;
static int udav_csr_read(struct udav_softc *, uint16_t, void *, int);
static int udav_csr_write(struct udav_softc *, uint16_t, void *, int);
static uint8_t udav_csr_read1(struct udav_softc *, uint16_t);
static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t);
static void udav_reset(struct udav_softc *);
static int udav_ifmedia_upd(struct ifnet *);
static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *);
static miibus_readreg_t udav_miibus_readreg;
static miibus_writereg_t udav_miibus_writereg;
static miibus_statchg_t udav_miibus_statchg;
static const struct usb_config udav_config[UDAV_N_TRANSFER] = {
[UDAV_BULK_DT_WR] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = (MCLBYTES + 2),
.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
.callback = udav_bulk_write_callback,
.timeout = 10000, /* 10 seconds */
},
[UDAV_BULK_DT_RD] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = (MCLBYTES + 3),
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.callback = udav_bulk_read_callback,
.timeout = 0, /* no timeout */
},
[UDAV_INTR_DT_RD] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.bufsize = 0, /* use wMaxPacketSize */
.callback = udav_intr_callback,
},
};
static device_method_t udav_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, udav_probe),
DEVMETHOD(device_attach, udav_attach),
DEVMETHOD(device_detach, udav_detach),
/* MII interface */
DEVMETHOD(miibus_readreg, udav_miibus_readreg),
DEVMETHOD(miibus_writereg, udav_miibus_writereg),
DEVMETHOD(miibus_statchg, udav_miibus_statchg),
DEVMETHOD_END
};
static driver_t udav_driver = {
.name = "udav",
.methods = udav_methods,
.size = sizeof(struct udav_softc),
};
static devclass_t udav_devclass;
static const STRUCT_USB_HOST_ID udav_devs[] = {
/* ShanTou DM9601 USB NIC */
{USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)},
/* ShanTou ST268 USB NIC */
{USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)},
/* Corega USB-TXC */
{USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)},
/* ShanTou AMD8515 USB NIC */
{USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)},
/* Kontron AG USB Ethernet */
{USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)},
{USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082,
UDAV_FLAG_NO_PHY)},
};
DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, 0);
DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0);
MODULE_DEPEND(udav, uether, 1, 1, 1);
MODULE_DEPEND(udav, usb, 1, 1, 1);
MODULE_DEPEND(udav, ether, 1, 1, 1);
MODULE_DEPEND(udav, miibus, 1, 1, 1);
MODULE_VERSION(udav, 1);
USB_PNP_HOST_INFO(udav_devs);
static const struct usb_ether_methods udav_ue_methods = {
.ue_attach_post = udav_attach_post,
.ue_start = udav_start,
.ue_init = udav_init,
.ue_stop = udav_stop,
.ue_tick = udav_tick,
.ue_setmulti = udav_setmulti,
.ue_setpromisc = udav_setpromisc,
.ue_mii_upd = udav_ifmedia_upd,
.ue_mii_sts = udav_ifmedia_status,
};
static const struct usb_ether_methods udav_ue_methods_nophy = {
.ue_attach_post = udav_attach_post,
.ue_start = udav_start,
.ue_init = udav_init,
.ue_stop = udav_stop,
.ue_setmulti = udav_setmulti,
.ue_setpromisc = udav_setpromisc,
};
#ifdef USB_DEBUG
static int udav_debug = 0;
static SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav");
SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RWTUN, &udav_debug, 0,
"Debug level");
#endif
#define UDAV_SETBIT(sc, reg, x) \
udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x))
#define UDAV_CLRBIT(sc, reg, x) \
udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x))
static void
udav_attach_post(struct usb_ether *ue)
{
struct udav_softc *sc = uether_getsc(ue);
/* reset the adapter */
udav_reset(sc);
/* Get Ethernet Address */
udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN);
}
static int
udav_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX)
return (ENXIO);
if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX)
return (ENXIO);
return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa));
}
static int
udav_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct udav_softc *sc = device_get_softc(dev);
struct usb_ether *ue = &sc->sc_ue;
uint8_t iface_index;
int error;
sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
iface_index = UDAV_IFACE_INDEX;
error = usbd_transfer_setup(uaa->device, &iface_index,
sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_mtx);
if (error) {
device_printf(dev, "allocating USB transfers failed\n");
goto detach;
}
/*
* The JP1082 has an unusable PHY and provides no link information.
*/
if (sc->sc_flags & UDAV_FLAG_NO_PHY) {
ue->ue_methods = &udav_ue_methods_nophy;
sc->sc_flags |= UDAV_FLAG_LINK;
} else {
ue->ue_methods = &udav_ue_methods;
}
ue->ue_sc = sc;
ue->ue_dev = dev;
ue->ue_udev = uaa->device;
ue->ue_mtx = &sc->sc_mtx;
error = uether_ifattach(ue);
if (error) {
device_printf(dev, "could not attach interface\n");
goto detach;
}
return (0); /* success */
detach:
udav_detach(dev);
return (ENXIO); /* failure */
}
static int
udav_detach(device_t dev)
{
struct udav_softc *sc = device_get_softc(dev);
struct usb_ether *ue = &sc->sc_ue;
usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER);
uether_ifdetach(ue);
mtx_destroy(&sc->sc_mtx);
return (0);
}
#if 0
static int
udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf,
int len)
{
struct usb_device_request req;
len &= 0xff;
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_MEM_READ;
USETW(req.wValue, 0x0000);
USETW(req.wIndex, offset);
USETW(req.wLength, len);
return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
}
static int
udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf,
int len)
{
struct usb_device_request req;
len &= 0xff;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_MEM_WRITE;
USETW(req.wValue, 0x0000);
USETW(req.wIndex, offset);
USETW(req.wLength, len);
return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
}
static int
udav_mem_write1(struct udav_softc *sc, uint16_t offset,
uint8_t ch)
{
struct usb_device_request req;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_MEM_WRITE1;
USETW(req.wValue, ch);
USETW(req.wIndex, offset);
USETW(req.wLength, 0x0000);
return (uether_do_request(&sc->sc_ue, &req, NULL, 1000));
}
#endif
static int
udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len)
{
struct usb_device_request req;
len &= 0xff;
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_REG_READ;
USETW(req.wValue, 0x0000);
USETW(req.wIndex, offset);
USETW(req.wLength, len);
return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
}
static int
udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len)
{
struct usb_device_request req;
offset &= 0xff;
len &= 0xff;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_REG_WRITE;
USETW(req.wValue, 0x0000);
USETW(req.wIndex, offset);
USETW(req.wLength, len);
return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
}
static uint8_t
udav_csr_read1(struct udav_softc *sc, uint16_t offset)
{
uint8_t val;
udav_csr_read(sc, offset, &val, 1);
return (val);
}
static int
udav_csr_write1(struct udav_softc *sc, uint16_t offset,
uint8_t ch)
{
struct usb_device_request req;
offset &= 0xff;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_REG_WRITE1;
USETW(req.wValue, ch);
USETW(req.wIndex, offset);
USETW(req.wLength, 0x0000);
return (uether_do_request(&sc->sc_ue, &req, NULL, 1000));
}
static void
udav_init(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
UDAV_LOCK_ASSERT(sc, MA_OWNED);
/*
* Cancel pending I/O
*/
udav_stop(ue);
/* set MAC address */
udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN);
/* initialize network control register */
/* disable loopback */
UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1);
/* Initialize RX control register */
UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC);
/* load multicast filter and update promiscious mode bit */
udav_setpromisc(ue);
/* enable RX */
UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN);
/* clear POWER_DOWN state of internal PHY */
UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0);
UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0);
usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]);
ifp->if_drv_flags |= IFF_DRV_RUNNING;
udav_start(ue);
}
static void
udav_reset(struct udav_softc *sc)
{
int i;
/* Select PHY */
#if 1
/*
* XXX: force select internal phy.
* external phy routines are not tested.
*/
UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
#else
if (sc->sc_flags & UDAV_EXT_PHY)
UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
else
UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
#endif
UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST);
for (i = 0; i < UDAV_TX_TIMEOUT; i++) {
if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST))
break;
if (uether_pause(&sc->sc_ue, hz / 100))
break;
}
uether_pause(&sc->sc_ue, hz / 100);
}
#define UDAV_BITS 6
static void
udav_setmulti(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
struct ifmultiaddr *ifma;
uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
int h = 0;
UDAV_LOCK_ASSERT(sc, MA_OWNED);
if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC);
return;
}
/* first, zot all the existing hash bits */
memset(hashtbl, 0x00, sizeof(hashtbl));
hashtbl[7] |= 0x80; /* broadcast address */
udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl));
/* now program new ones */
if_maddr_rlock(ifp);
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
{
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
h = ether_crc32_be(LLADDR((struct sockaddr_dl *)
ifma->ifma_addr), ETHER_ADDR_LEN) >> 26;
hashtbl[h / 8] |= 1 << (h % 8);
}
if_maddr_runlock(ifp);
/* disable all multicast */
UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL);
/* write hash value to the register */
udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl));
}
static void
udav_setpromisc(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
uint8_t rxmode;
rxmode = udav_csr_read1(sc, UDAV_RCR);
rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC);
if (ifp->if_flags & IFF_PROMISC)
rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC;
else if (ifp->if_flags & IFF_ALLMULTI)
rxmode |= UDAV_RCR_ALL;
/* write new mode bits */
udav_csr_write1(sc, UDAV_RCR, rxmode);
}
static void
udav_start(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
/*
* start the USB transfers, if not already started:
*/
usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]);
usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]);
usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]);
}
static void
udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct udav_softc *sc = usbd_xfer_softc(xfer);
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
struct usb_page_cache *pc;
struct mbuf *m;
int extra_len;
int temp_len;
uint8_t buf[2];
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTFN(11, "transfer complete\n");
if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) {
/*
* don't send anything if there is no link !
*/
return;
}
IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
return;
if (m->m_pkthdr.len > MCLBYTES)
m->m_pkthdr.len = MCLBYTES;
if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) {
extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len;
} else {
extra_len = 0;
}
temp_len = (m->m_pkthdr.len + extra_len);
/*
* the frame length is specified in the first 2 bytes of the
* buffer
*/
buf[0] = (uint8_t)(temp_len);
buf[1] = (uint8_t)(temp_len >> 8);
temp_len += 2;
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, buf, 2);
usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len);
if (extra_len)
usbd_frame_zero(pc, temp_len - extra_len, extra_len);
/*
* if there's a BPF listener, bounce a copy
* of this frame to him:
*/
BPF_MTAP(ifp, m);
m_freem(m);
usbd_xfer_set_frame_len(xfer, 0, temp_len);
usbd_transfer_submit(xfer);
return;
default: /* Error */
DPRINTFN(11, "transfer error, %s\n",
usbd_errstr(error));
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct udav_softc *sc = usbd_xfer_softc(xfer);
struct usb_ether *ue = &sc->sc_ue;
struct ifnet *ifp = uether_getifp(ue);
struct usb_page_cache *pc;
struct udav_rxpkt stat;
int len;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
if (actlen < (int)(sizeof(stat) + ETHER_CRC_LEN)) {
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
goto tr_setup;
}
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, &stat, sizeof(stat));
actlen -= sizeof(stat);
len = min(actlen, le16toh(stat.pktlen));
len -= ETHER_CRC_LEN;
if (stat.rxstat & UDAV_RSR_LCS) {
if_inc_counter(ifp, IFCOUNTER_COLLISIONS, 1);
goto tr_setup;
}
if (stat.rxstat & UDAV_RSR_ERR) {
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
goto tr_setup;
}
uether_rxbuf(ue, pc, sizeof(stat), len);
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
uether_rxflush(ue);
return;
default: /* Error */
DPRINTF("bulk read error, %s\n",
usbd_errstr(error));
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
udav_intr_callback(struct usb_xfer *xfer, usb_error_t error)
{
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
return;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
udav_stop(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
UDAV_LOCK_ASSERT(sc, MA_OWNED);
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
if (!(sc->sc_flags & UDAV_FLAG_NO_PHY))
sc->sc_flags &= ~UDAV_FLAG_LINK;
/*
* stop all the transfers, if not already stopped:
*/
usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]);
usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]);
usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]);
udav_reset(sc);
}
static int
udav_ifmedia_upd(struct ifnet *ifp)
{
struct udav_softc *sc = ifp->if_softc;
struct mii_data *mii = GET_MII(sc);
struct mii_softc *miisc;
int error;
UDAV_LOCK_ASSERT(sc, MA_OWNED);
sc->sc_flags &= ~UDAV_FLAG_LINK;
LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
PHY_RESET(miisc);
error = mii_mediachg(mii);
return (error);
}
static void
udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct udav_softc *sc = ifp->if_softc;
struct mii_data *mii = GET_MII(sc);
UDAV_LOCK(sc);
mii_pollstat(mii);
ifmr->ifm_active = mii->mii_media_active;
ifmr->ifm_status = mii->mii_media_status;
UDAV_UNLOCK(sc);
}
static void
udav_tick(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
struct mii_data *mii = GET_MII(sc);
UDAV_LOCK_ASSERT(sc, MA_OWNED);
mii_tick(mii);
if ((sc->sc_flags & UDAV_FLAG_LINK) == 0
&& mii->mii_media_status & IFM_ACTIVE &&
IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
sc->sc_flags |= UDAV_FLAG_LINK;
udav_start(ue);
}
}
static int
udav_miibus_readreg(device_t dev, int phy, int reg)
{
struct udav_softc *sc = device_get_softc(dev);
uint16_t data16;
uint8_t val[2];
int locked;
/* XXX: one PHY only for the internal PHY */
if (phy != 0)
return (0);
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
UDAV_LOCK(sc);
/* select internal PHY and set PHY register address */
udav_csr_write1(sc, UDAV_EPAR,
UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
/* select PHY operation and start read command */
udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR);
/* XXX: should we wait? */
/* end read command */
UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR);
/* retrieve the result from data registers */
udav_csr_read(sc, UDAV_EPDRL, val, 2);
data16 = (val[0] | (val[1] << 8));
DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n",
phy, reg, data16);
if (!locked)
UDAV_UNLOCK(sc);
return (data16);
}
static int
udav_miibus_writereg(device_t dev, int phy, int reg, int data)
{
struct udav_softc *sc = device_get_softc(dev);
uint8_t val[2];
int locked;
/* XXX: one PHY only for the internal PHY */
if (phy != 0)
return (0);
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
UDAV_LOCK(sc);
/* select internal PHY and set PHY register address */
udav_csr_write1(sc, UDAV_EPAR,
UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
/* put the value to the data registers */
val[0] = (data & 0xff);
val[1] = (data >> 8) & 0xff;
udav_csr_write(sc, UDAV_EPDRL, val, 2);
/* select PHY operation and start write command */
udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW);
/* XXX: should we wait? */
/* end write command */
UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW);
if (!locked)
UDAV_UNLOCK(sc);
return (0);
}
static void
udav_miibus_statchg(device_t dev)
{
/* nothing to do */
}