int
smsc_miibus_readreg(struct device *dev, int phy, int reg)
{
struct smsc_softc *sc = (struct smsc_softc *)dev;
uint32_t addr;
uint32_t val = 0;
smsc_lock_mii(sc);
if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) {
smsc_warn_printf(sc, "MII is busy\n");
goto done;
}
addr = (phy << 11) | (reg << 6) | SMSC_MII_READ;
smsc_write_reg(sc, SMSC_MII_ADDR, addr);
if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0)
smsc_warn_printf(sc, "MII read timeout\n");
smsc_read_reg(sc, SMSC_MII_DATA, &val);
smsc_unlock_mii(sc);
done:
return (val & 0xFFFF);
}
int
smsc_wait_for_bits(struct smsc_softc *sc, uint32_t reg, uint32_t bits)
{
uint32_t val;
int err, i;
for (i = 0; i < 100; i++) {
if ((err = smsc_read_reg(sc, reg, &val)) != 0)
return (err);
if (!(val & bits))
return (0);
DELAY(5);
}
return (1);
}
int
smsc_sethwcsum(struct smsc_softc *sc)
{
struct ifnet *ifp = &sc->sc_ec.ec_if;
uint32_t val;
int err;
if (!ifp)
return EIO;
err = smsc_read_reg(sc, SMSC_COE_CTRL, &val);
if (err != 0) {
smsc_warn_printf(sc, "failed to read SMSC_COE_CTRL (err=%d)\n",
err);
return (err);
}
/* Enable/disable the Rx checksum */
if (ifp->if_capenable & (IFCAP_CSUM_TCPv4_Rx|IFCAP_CSUM_UDPv4_Rx))
val |= (SMSC_COE_CTRL_RX_EN | SMSC_COE_CTRL_RX_MODE);
else
val &= ~(SMSC_COE_CTRL_RX_EN | SMSC_COE_CTRL_RX_MODE);
/* Enable/disable the Tx checksum (currently not supported) */
if (ifp->if_capenable & (IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_UDPv4_Tx))
val |= SMSC_COE_CTRL_TX_EN;
else
val &= ~SMSC_COE_CTRL_TX_EN;
sc->sc_coe_ctrl = val;
err = smsc_write_reg(sc, SMSC_COE_CTRL, val);
if (err != 0) {
smsc_warn_printf(sc, "failed to write SMSC_COE_CTRL (err=%d)\n",
err);
return (err);
}
return (0);
}
int
smsc_sethwcsum(struct smsc_softc *sc)
{
struct ifnet *ifp = &sc->sc_ac.ac_if;
uint32_t val;
int err;
if (!ifp)
return (-EIO);
err = smsc_read_reg(sc, SMSC_COE_CTRL, &val);
if (err != 0) {
smsc_warn_printf(sc, "failed to read SMSC_COE_CTRL (err=%d)\n",
err);
return (err);
}
/* Enable/disable the Rx checksum */
if (ifp->if_capabilities & IFCAP_CSUM_IPv4)
val |= SMSC_COE_CTRL_RX_EN;
else
val &= ~SMSC_COE_CTRL_RX_EN;
/* Enable/disable the Tx checksum (currently not supported) */
if (ifp->if_capabilities & IFCAP_CSUM_IPv4)
val |= SMSC_COE_CTRL_TX_EN;
else
val &= ~SMSC_COE_CTRL_TX_EN;
err = smsc_write_reg(sc, SMSC_COE_CTRL, val);
if (err != 0) {
smsc_warn_printf(sc, "failed to write SMSC_COE_CTRL (err=%d)\n",
err);
return (err);
}
return (0);
}
void
smsc_attach(struct device *parent, struct device *self, void *aux)
{
struct smsc_softc *sc = (struct smsc_softc *)self;
struct usb_attach_arg *uaa = aux;
struct usbd_device *dev = uaa->device;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
struct mii_data *mii;
struct ifnet *ifp;
int err, s, i;
uint32_t mac_h, mac_l;
sc->sc_udev = dev;
err = usbd_set_config_no(dev, SMSC_CONFIG_INDEX, 1);
/* Setup the endpoints for the SMSC LAN95xx device(s) */
usb_init_task(&sc->sc_tick_task, smsc_tick_task, sc,
USB_TASK_TYPE_GENERIC);
rw_init(&sc->sc_mii_lock, "smscmii");
usb_init_task(&sc->sc_stop_task, (void (*)(void *))smsc_stop, sc,
USB_TASK_TYPE_GENERIC);
err = usbd_device2interface_handle(dev, SMSC_IFACE_IDX, &sc->sc_iface);
if (err) {
printf("%s: getting interface handle failed\n",
sc->sc_dev.dv_xname);
return;
}
id = usbd_get_interface_descriptor(sc->sc_iface);
if (sc->sc_udev->speed >= USB_SPEED_HIGH)
sc->sc_bufsz = SMSC_MAX_BUFSZ;
else
sc->sc_bufsz = SMSC_MIN_BUFSZ;
/* Find endpoints. */
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
if (!ed) {
printf("%s: couldn't get ep %d\n",
sc->sc_dev.dv_xname, i);
return;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_ed[SMSC_ENDPT_RX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_ed[SMSC_ENDPT_TX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
sc->sc_ed[SMSC_ENDPT_INTR] = ed->bEndpointAddress;
}
}
s = splnet();
ifp = &sc->sc_ac.ac_if;
ifp->if_softc = sc;
strlcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ);
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = smsc_ioctl;
ifp->if_start = smsc_start;
ifp->if_capabilities = IFCAP_VLAN_MTU;
/* Setup some of the basics */
sc->sc_phyno = 1;
/*
* Attempt to get the mac address, if an EEPROM is not attached this
* will just return FF:FF:FF:FF:FF:FF, so in such cases we invent a MAC
* address based on urandom.
*/
memset(sc->sc_ac.ac_enaddr, 0xff, ETHER_ADDR_LEN);
/* Check if there is already a MAC address in the register */
if ((smsc_read_reg(sc, SMSC_MAC_ADDRL, &mac_l) == 0) &&
(smsc_read_reg(sc, SMSC_MAC_ADDRH, &mac_h) == 0)) {
sc->sc_ac.ac_enaddr[5] = (uint8_t)((mac_h >> 8) & 0xff);
sc->sc_ac.ac_enaddr[4] = (uint8_t)((mac_h) & 0xff);
sc->sc_ac.ac_enaddr[3] = (uint8_t)((mac_l >> 24) & 0xff);
sc->sc_ac.ac_enaddr[2] = (uint8_t)((mac_l >> 16) & 0xff);
sc->sc_ac.ac_enaddr[1] = (uint8_t)((mac_l >> 8) & 0xff);
sc->sc_ac.ac_enaddr[0] = (uint8_t)((mac_l) & 0xff);
}
int
smsc_chip_init(struct smsc_softc *sc)
{
int err;
uint32_t reg_val;
int burst_cap;
/* Enter H/W config mode */
smsc_write_reg(sc, SMSC_HW_CFG, SMSC_HW_CFG_LRST);
if ((err = smsc_wait_for_bits(sc, SMSC_HW_CFG,
SMSC_HW_CFG_LRST)) != 0) {
smsc_warn_printf(sc, "timed-out waiting for reset to "
"complete\n");
goto init_failed;
}
/* Reset the PHY */
smsc_write_reg(sc, SMSC_PM_CTRL, SMSC_PM_CTRL_PHY_RST);
if ((err = smsc_wait_for_bits(sc, SMSC_PM_CTRL,
SMSC_PM_CTRL_PHY_RST) != 0)) {
smsc_warn_printf(sc, "timed-out waiting for phy reset to "
"complete\n");
goto init_failed;
}
usbd_delay_ms(sc->sc_udev, 40);
/* Set the mac address */
if ((err = smsc_setmacaddress(sc, sc->sc_ac.ac_enaddr)) != 0) {
smsc_warn_printf(sc, "failed to set the MAC address\n");
goto init_failed;
}
/*
* Don't know what the HW_CFG_BIR bit is, but following the reset
* sequence as used in the Linux driver.
*/
if ((err = smsc_read_reg(sc, SMSC_HW_CFG, ®_val)) != 0) {
smsc_warn_printf(sc, "failed to read HW_CFG: %d\n", err);
goto init_failed;
}
reg_val |= SMSC_HW_CFG_BIR;
smsc_write_reg(sc, SMSC_HW_CFG, reg_val);
/*
* There is a so called 'turbo mode' that the linux driver supports, it
* seems to allow you to jam multiple frames per Rx transaction.
* By default this driver supports that and therefore allows multiple
* frames per URB.
*
* The xfer buffer size needs to reflect this as well, therefore based
* on the calculations in the Linux driver the RX bufsize is set to
* 18944,
* bufsz = (16 * 1024 + 5 * 512)
*
* Burst capability is the number of URBs that can be in a burst of
* data/ethernet frames.
*/
#ifdef SMSC_TURBO
if (sc->sc_udev->speed == USB_SPEED_HIGH)
burst_cap = 37;
else
burst_cap = 128;
#else
burst_cap = 0;
#endif
smsc_write_reg(sc, SMSC_BURST_CAP, burst_cap);
/* Set the default bulk in delay (magic value from Linux driver) */
smsc_write_reg(sc, SMSC_BULK_IN_DLY, 0x00002000);
/*
* Initialise the RX interface
*/
if ((err = smsc_read_reg(sc, SMSC_HW_CFG, ®_val)) < 0) {
smsc_warn_printf(sc, "failed to read HW_CFG: (err = %d)\n",
err);
goto init_failed;
}
/*
* The following setings are used for 'turbo mode', a.k.a multiple
* frames per Rx transaction (again info taken form Linux driver).
*/
#ifdef SMSC_TURBO
reg_val |= (SMSC_HW_CFG_MEF | SMSC_HW_CFG_BCE);
#endif
smsc_write_reg(sc, SMSC_HW_CFG, reg_val);
/* Clear the status register ? */
smsc_write_reg(sc, SMSC_INTR_STATUS, 0xffffffff);
/* Read and display the revision register */
if ((err = smsc_read_reg(sc, SMSC_ID_REV, &sc->sc_rev_id)) < 0) {
smsc_warn_printf(sc, "failed to read ID_REV (err = %d)\n", err);
goto init_failed;
}
/* GPIO/LED setup */
reg_val = SMSC_LED_GPIO_CFG_SPD_LED | SMSC_LED_GPIO_CFG_LNK_LED |
SMSC_LED_GPIO_CFG_FDX_LED;
smsc_write_reg(sc, SMSC_LED_GPIO_CFG, reg_val);
/*
* Initialise the TX interface
*/
smsc_write_reg(sc, SMSC_FLOW, 0);
smsc_write_reg(sc, SMSC_AFC_CFG, AFC_CFG_DEFAULT);
/* Read the current MAC configuration */
if ((err = smsc_read_reg(sc, SMSC_MAC_CSR, &sc->sc_mac_csr)) < 0) {
smsc_warn_printf(sc, "failed to read MAC_CSR (err=%d)\n", err);
goto init_failed;
}
/* Vlan */
smsc_write_reg(sc, SMSC_VLAN1, (uint32_t)ETHERTYPE_VLAN);
/*
* Start TX
*/
sc->sc_mac_csr |= SMSC_MAC_CSR_TXEN;
smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr);
smsc_write_reg(sc, SMSC_TX_CFG, SMSC_TX_CFG_ON);
/*
* Start RX
*/
sc->sc_mac_csr |= SMSC_MAC_CSR_RXEN;
smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr);
return (0);
init_failed:
smsc_err_printf(sc, "smsc_chip_init failed (err=%d)\n", err);
return (err);
}
void
smsc_miibus_statchg(struct device *dev)
{
struct smsc_softc *sc = (struct smsc_softc *)dev;
struct mii_data *mii = &sc->sc_mii;
struct ifnet *ifp = &sc->sc_ac.ac_if;
int err;
uint32_t flow;
uint32_t afc_cfg;
if (mii == NULL || ifp == NULL ||
(ifp->if_flags & IFF_RUNNING) == 0)
return;
/* Use the MII status to determine link status */
sc->sc_flags &= ~SMSC_FLAG_LINK;
if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
(IFM_ACTIVE | IFM_AVALID)) {
switch (IFM_SUBTYPE(mii->mii_media_active)) {
case IFM_10_T:
case IFM_100_TX:
sc->sc_flags |= SMSC_FLAG_LINK;
break;
case IFM_1000_T:
/* Gigabit ethernet not supported by chipset */
break;
default:
break;
}
}
/* Lost link, do nothing. */
if ((sc->sc_flags & SMSC_FLAG_LINK) == 0) {
smsc_dbg_printf(sc, "link flag not set\n");
return;
}
err = smsc_read_reg(sc, SMSC_AFC_CFG, &afc_cfg);
if (err) {
smsc_warn_printf(sc, "failed to read initial AFC_CFG, "
"error %d\n", err);
return;
}
/* Enable/disable full duplex operation and TX/RX pause */
if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) {
smsc_dbg_printf(sc, "full duplex operation\n");
sc->sc_mac_csr &= ~SMSC_MAC_CSR_RCVOWN;
sc->sc_mac_csr |= SMSC_MAC_CSR_FDPX;
if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0)
flow = 0xffff0002;
else
flow = 0;
if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0)
afc_cfg |= 0xf;
else
afc_cfg &= ~0xf;
} else {
smsc_dbg_printf(sc, "half duplex operation\n");
sc->sc_mac_csr &= ~SMSC_MAC_CSR_FDPX;
sc->sc_mac_csr |= SMSC_MAC_CSR_RCVOWN;
flow = 0;
afc_cfg |= 0xf;
}
err = smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr);
err += smsc_write_reg(sc, SMSC_FLOW, flow);
err += smsc_write_reg(sc, SMSC_AFC_CFG, afc_cfg);
if (err)
smsc_warn_printf(sc, "media change failed, error %d\n", err);
}
void
smsc_attach(device_t parent, device_t self, void *aux)
{
struct smsc_softc *sc = device_private(self);
struct usb_attach_arg *uaa = aux;
usbd_device_handle dev = uaa->device;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
char *devinfop;
struct mii_data *mii;
struct ifnet *ifp;
int err, s, i;
uint32_t mac_h, mac_l;
sc->sc_dev = self;
sc->sc_udev = dev;
aprint_naive("\n");
aprint_normal("\n");
devinfop = usbd_devinfo_alloc(sc->sc_udev, 0);
aprint_normal_dev(self, "%s\n", devinfop);
usbd_devinfo_free(devinfop);
err = usbd_set_config_no(dev, SMSC_CONFIG_INDEX, 1);
if (err) {
aprint_error_dev(self, "failed to set configuration"
", err=%s\n", usbd_errstr(err));
return;
}
/* Setup the endpoints for the SMSC LAN95xx device(s) */
usb_init_task(&sc->sc_tick_task, smsc_tick_task, sc, 0);
usb_init_task(&sc->sc_stop_task, (void (*)(void *))smsc_stop, sc, 0);
mutex_init(&sc->sc_mii_lock, MUTEX_DEFAULT, IPL_NONE);
err = usbd_device2interface_handle(dev, SMSC_IFACE_IDX, &sc->sc_iface);
if (err) {
aprint_error_dev(self, "getting interface handle failed\n");
return;
}
id = usbd_get_interface_descriptor(sc->sc_iface);
if (sc->sc_udev->speed >= USB_SPEED_HIGH)
sc->sc_bufsz = SMSC_MAX_BUFSZ;
else
sc->sc_bufsz = SMSC_MIN_BUFSZ;
/* Find endpoints. */
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
if (!ed) {
aprint_error_dev(self, "couldn't get ep %d\n", i);
return;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_ed[SMSC_ENDPT_RX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_ed[SMSC_ENDPT_TX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
sc->sc_ed[SMSC_ENDPT_INTR] = ed->bEndpointAddress;
}
}
s = splnet();
ifp = &sc->sc_ec.ec_if;
ifp->if_softc = sc;
strlcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ);
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_init = smsc_init;
ifp->if_ioctl = smsc_ioctl;
ifp->if_start = smsc_start;
ifp->if_stop = smsc_stop;
#ifdef notyet
/*
* We can do TCPv4, and UDPv4 checksums in hardware.
*/
ifp->if_capabilities |=
/*IFCAP_CSUM_TCPv4_Tx |*/ IFCAP_CSUM_TCPv4_Rx |
/*IFCAP_CSUM_UDPv4_Tx |*/ IFCAP_CSUM_UDPv4_Rx;
#endif
sc->sc_ec.ec_capabilities = ETHERCAP_VLAN_MTU;
/* Setup some of the basics */
sc->sc_phyno = 1;
/*
* Attempt to get the mac address, if an EEPROM is not attached this
* will just return FF:FF:FF:FF:FF:FF, so in such cases we invent a MAC
* address based on urandom.
*/
memset(sc->sc_enaddr, 0xff, ETHER_ADDR_LEN);
prop_dictionary_t dict = device_properties(self);
prop_data_t eaprop = prop_dictionary_get(dict, "mac-address");
if (eaprop != NULL) {
KASSERT(prop_object_type(eaprop) == PROP_TYPE_DATA);
KASSERT(prop_data_size(eaprop) == ETHER_ADDR_LEN);
memcpy(sc->sc_enaddr, prop_data_data_nocopy(eaprop),
ETHER_ADDR_LEN);
} else
/* Check if there is already a MAC address in the register */
if ((smsc_read_reg(sc, SMSC_MAC_ADDRL, &mac_l) == 0) &&
(smsc_read_reg(sc, SMSC_MAC_ADDRH, &mac_h) == 0)) {
sc->sc_enaddr[5] = (uint8_t)((mac_h >> 8) & 0xff);
sc->sc_enaddr[4] = (uint8_t)((mac_h) & 0xff);
sc->sc_enaddr[3] = (uint8_t)((mac_l >> 24) & 0xff);
sc->sc_enaddr[2] = (uint8_t)((mac_l >> 16) & 0xff);
sc->sc_enaddr[1] = (uint8_t)((mac_l >> 8) & 0xff);
sc->sc_enaddr[0] = (uint8_t)((mac_l) & 0xff);
}