if_smsc.c revision 240806
1239275Sgonzo/*- 2239275Sgonzo * Copyright (c) 2012 3239275Sgonzo * Ben Gray <bgray@freebsd.org>. 4239275Sgonzo * All rights reserved. 5239275Sgonzo * 6239275Sgonzo * Redistribution and use in source and binary forms, with or without 7239275Sgonzo * modification, are permitted provided that the following conditions 8239275Sgonzo * are met: 9239275Sgonzo * 1. Redistributions of source code must retain the above copyright 10239275Sgonzo * notice, this list of conditions and the following disclaimer. 11239275Sgonzo * 2. Redistributions in binary form must reproduce the above copyright 12239275Sgonzo * notice, this list of conditions and the following disclaimer in the 13239275Sgonzo * documentation and/or other materials provided with the distribution. 14239275Sgonzo * 15239275Sgonzo * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16239275Sgonzo * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17239275Sgonzo * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18239275Sgonzo * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19239275Sgonzo * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20239275Sgonzo * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21239275Sgonzo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22239275Sgonzo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23239275Sgonzo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24239275Sgonzo * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25239275Sgonzo */ 26239275Sgonzo 27239275Sgonzo#include <sys/cdefs.h> 28239275Sgonzo__FBSDID("$FreeBSD: head/sys/dev/usb/net/if_smsc.c 240806 2012-09-22 08:02:42Z hselasky $"); 29239275Sgonzo 30239275Sgonzo/* 31239275Sgonzo * SMSC LAN9xxx devices (http://www.smsc.com/) 32239275Sgonzo * 33239275Sgonzo * The LAN9500 & LAN9500A devices are stand-alone USB to Ethernet chips that 34239275Sgonzo * support USB 2.0 and 10/100 Mbps Ethernet. 35239275Sgonzo * 36239275Sgonzo * The LAN951x devices are an integrated USB hub and USB to Ethernet adapter. 37239275Sgonzo * The driver only covers the Ethernet part, the standard USB hub driver 38239275Sgonzo * supports the hub part. 39239275Sgonzo * 40239275Sgonzo * This driver is closely modelled on the Linux driver written and copyrighted 41239275Sgonzo * by SMSC. 42239275Sgonzo * 43239275Sgonzo * 44239275Sgonzo * 45239275Sgonzo * 46239275Sgonzo * H/W TCP & UDP Checksum Offloading 47239275Sgonzo * --------------------------------- 48239275Sgonzo * The chip supports both tx and rx offloading of UDP & TCP checksums, this 49239275Sgonzo * feature can be dynamically enabled/disabled. 50239275Sgonzo * 51239275Sgonzo * RX checksuming is performed across bytes after the IPv4 header to the end of 52239275Sgonzo * the Ethernet frame, this means if the frame is padded with non-zero values 53239275Sgonzo * the H/W checksum will be incorrect, however the rx code compensates for this. 54239275Sgonzo * 55239275Sgonzo * TX checksuming is more complicated, the device requires a special header to 56239275Sgonzo * be prefixed onto the start of the frame which indicates the start and end 57239275Sgonzo * positions of the UDP or TCP frame. This requires the driver to manually 58239275Sgonzo * go through the packet data and decode the headers prior to sending. 59239275Sgonzo * On Linux they generally provide cues to the location of the csum and the 60239275Sgonzo * area to calculate it over, on FreeBSD we seem to have to do it all ourselves, 61239275Sgonzo * hence this is not as optimal and therefore h/w tX checksum is currently not 62239275Sgonzo * implemented. 63239275Sgonzo * 64239275Sgonzo */ 65239275Sgonzo#include <sys/stdint.h> 66239275Sgonzo#include <sys/stddef.h> 67239275Sgonzo#include <sys/param.h> 68239275Sgonzo#include <sys/queue.h> 69239275Sgonzo#include <sys/types.h> 70239275Sgonzo#include <sys/systm.h> 71239275Sgonzo#include <sys/kernel.h> 72239275Sgonzo#include <sys/bus.h> 73239275Sgonzo#include <sys/module.h> 74239275Sgonzo#include <sys/lock.h> 75239275Sgonzo#include <sys/mutex.h> 76239275Sgonzo#include <sys/condvar.h> 77257241Sglebius#include <sys/sysctl.h> 78239275Sgonzo#include <sys/sx.h> 79239275Sgonzo#include <sys/unistd.h> 80239275Sgonzo#include <sys/callout.h> 81239275Sgonzo#include <sys/malloc.h> 82239275Sgonzo#include <sys/priv.h> 83239275Sgonzo#include <sys/random.h> 84239275Sgonzo 85239275Sgonzo#include <dev/usb/usb.h> 86257241Sglebius#include <dev/usb/usbdi.h> 87257241Sglebius#include <dev/usb/usbdi_util.h> 88257241Sglebius#include "usbdevs.h" 89265371Stuexen 90265371Stuexen#define USB_DEBUG_VAR smsc_debug 91265371Stuexen#include <dev/usb/usb_debug.h> 92243421Sgonzo#include <dev/usb/usb_process.h> 93243421Sgonzo 94243421Sgonzo#include <dev/usb/usb_device.h> 95243421Sgonzo#include <dev/usb/net/usb_ethernet.h> 96243421Sgonzo#include "if_smscreg.h" 97243421Sgonzo 98243421Sgonzo#ifdef USB_DEBUG 99243421Sgonzostatic int smsc_debug = 0; 100239275Sgonzo 101239275SgonzoSYSCTL_NODE(_hw_usb, OID_AUTO, smsc, CTLFLAG_RW, 0, "USB smsc"); 102239275SgonzoSYSCTL_INT(_hw_usb_smsc, OID_AUTO, debug, CTLFLAG_RW, &smsc_debug, 0, 103239275Sgonzo "Debug level"); 104239275Sgonzo#endif 105239275Sgonzo 106239275Sgonzo/* 107239275Sgonzo * Various supported device vendors/products. 108239275Sgonzo */ 109239275Sgonzostatic const struct usb_device_id smsc_devs[] = { 110239275Sgonzo#define SMSC_DEV(p,i) { USB_VPI(USB_VENDOR_SMC2, USB_PRODUCT_SMC2_##p, i) } 111246615Shselasky SMSC_DEV(LAN9514_ETH, 0), 112246615Shselasky#undef SMSC_DEV 113239275Sgonzo}; 114239275Sgonzo 115239275Sgonzo 116239275Sgonzo#ifdef USB_DEBUG 117276701Shselasky#define smsc_dbg_printf(sc, fmt, args...) \ 118239275Sgonzo do { \ 119239275Sgonzo if (smsc_debug > 0) \ 120239275Sgonzo device_printf((sc)->sc_ue.ue_dev, "debug: " fmt, ##args); \ 121239275Sgonzo } while(0) 122239275Sgonzo#else 123239275Sgonzo#define smsc_dbg_printf(sc, fmt, args...) 124239275Sgonzo#endif 125239275Sgonzo 126272160Sgavin#define smsc_warn_printf(sc, fmt, args...) \ 127272160Sgavin device_printf((sc)->sc_ue.ue_dev, "warning: " fmt, ##args) 128272160Sgavin 129272160Sgavin#define smsc_err_printf(sc, fmt, args...) \ 130272160Sgavin device_printf((sc)->sc_ue.ue_dev, "error: " fmt, ##args) 131272160Sgavin 132272160Sgavin 133239275Sgonzo#define ETHER_IS_ZERO(addr) \ 134272160Sgavin (!(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5])) 135272160Sgavin 136272160Sgavin#define ETHER_IS_VALID(addr) \ 137272160Sgavin (!ETHER_IS_MULTICAST(addr) && !ETHER_IS_ZERO(addr)) 138272160Sgavin 139272160Sgavinstatic device_probe_t smsc_probe; 140272160Sgavinstatic device_attach_t smsc_attach; 141272160Sgavinstatic device_detach_t smsc_detach; 142272160Sgavin 143272160Sgavinstatic usb_callback_t smsc_bulk_read_callback; 144239275Sgonzostatic usb_callback_t smsc_bulk_write_callback; 145239275Sgonzo 146239275Sgonzostatic miibus_readreg_t smsc_miibus_readreg; 147239275Sgonzostatic miibus_writereg_t smsc_miibus_writereg; 148239275Sgonzostatic miibus_statchg_t smsc_miibus_statchg; 149239275Sgonzo 150239275Sgonzo#if __FreeBSD_version > 1000000 151239275Sgonzostatic int smsc_attach_post_sub(struct usb_ether *ue); 152239275Sgonzo#endif 153239275Sgonzostatic uether_fn_t smsc_attach_post; 154239275Sgonzostatic uether_fn_t smsc_init; 155239275Sgonzostatic uether_fn_t smsc_stop; 156239275Sgonzostatic uether_fn_t smsc_start; 157239275Sgonzostatic uether_fn_t smsc_tick; 158239275Sgonzostatic uether_fn_t smsc_setmulti; 159239275Sgonzostatic uether_fn_t smsc_setpromisc; 160239275Sgonzo 161239275Sgonzostatic int smsc_ifmedia_upd(struct ifnet *); 162239275Sgonzostatic void smsc_ifmedia_sts(struct ifnet *, struct ifmediareq *); 163239275Sgonzo 164239275Sgonzostatic int smsc_chip_init(struct smsc_softc *sc); 165239275Sgonzostatic int smsc_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data); 166239275Sgonzo 167239275Sgonzostatic const struct usb_config smsc_config[SMSC_N_TRANSFER] = { 168239275Sgonzo 169239275Sgonzo [SMSC_BULK_DT_WR] = { 170239275Sgonzo .type = UE_BULK, 171239275Sgonzo .endpoint = UE_ADDR_ANY, 172239275Sgonzo .direction = UE_DIR_OUT, 173239275Sgonzo .frames = 16, 174239275Sgonzo .bufsize = 16 * (MCLBYTES + 16), 175239275Sgonzo .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 176239275Sgonzo .callback = smsc_bulk_write_callback, 177239275Sgonzo .timeout = 10000, /* 10 seconds */ 178239275Sgonzo }, 179239275Sgonzo 180239275Sgonzo [SMSC_BULK_DT_RD] = { 181239275Sgonzo .type = UE_BULK, 182239275Sgonzo .endpoint = UE_ADDR_ANY, 183239275Sgonzo .direction = UE_DIR_IN, 184239275Sgonzo .bufsize = 20480, /* bytes */ 185239275Sgonzo .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 186239275Sgonzo .callback = smsc_bulk_read_callback, 187239275Sgonzo .timeout = 0, /* no timeout */ 188239275Sgonzo }, 189239275Sgonzo 190239275Sgonzo /* The SMSC chip supports an interrupt endpoints, however they aren't 191239275Sgonzo * needed as we poll on the MII status. 192239275Sgonzo */ 193239275Sgonzo}; 194239275Sgonzo 195239275Sgonzostatic const struct usb_ether_methods smsc_ue_methods = { 196239275Sgonzo .ue_attach_post = smsc_attach_post, 197239275Sgonzo#if __FreeBSD_version > 1000000 198239275Sgonzo .ue_attach_post_sub = smsc_attach_post_sub, 199239275Sgonzo#endif 200239275Sgonzo .ue_start = smsc_start, 201239275Sgonzo .ue_ioctl = smsc_ioctl, 202239275Sgonzo .ue_init = smsc_init, 203239275Sgonzo .ue_stop = smsc_stop, 204239275Sgonzo .ue_tick = smsc_tick, 205239275Sgonzo .ue_setmulti = smsc_setmulti, 206239275Sgonzo .ue_setpromisc = smsc_setpromisc, 207239275Sgonzo .ue_mii_upd = smsc_ifmedia_upd, 208239275Sgonzo .ue_mii_sts = smsc_ifmedia_sts, 209239275Sgonzo}; 210239275Sgonzo 211239275Sgonzo/** 212239275Sgonzo * smsc_read_reg - Reads a 32-bit register on the device 213239275Sgonzo * @sc: driver soft context 214239275Sgonzo * @off: offset of the register 215239275Sgonzo * @data: pointer a value that will be populated with the register value 216239275Sgonzo * 217239275Sgonzo * LOCKING: 218239275Sgonzo * The device lock must be held before calling this function. 219239275Sgonzo * 220239275Sgonzo * RETURNS: 221239275Sgonzo * 0 on success, a USB_ERR_?? error code on failure. 222239275Sgonzo */ 223239275Sgonzostatic int 224239275Sgonzosmsc_read_reg(struct smsc_softc *sc, uint32_t off, uint32_t *data) 225239275Sgonzo{ 226239275Sgonzo struct usb_device_request req; 227239275Sgonzo uint32_t buf; 228239275Sgonzo usb_error_t err; 229239275Sgonzo 230239275Sgonzo SMSC_LOCK_ASSERT(sc, MA_OWNED); 231239275Sgonzo 232239275Sgonzo req.bmRequestType = UT_READ_VENDOR_DEVICE; 233239275Sgonzo req.bRequest = SMSC_UR_READ_REG; 234239275Sgonzo USETW(req.wValue, 0); 235239275Sgonzo USETW(req.wIndex, off); 236239275Sgonzo USETW(req.wLength, 4); 237239275Sgonzo 238239275Sgonzo err = uether_do_request(&sc->sc_ue, &req, &buf, 1000); 239239275Sgonzo if (err != 0) 240239275Sgonzo smsc_warn_printf(sc, "Failed to read register 0x%0x\n", off); 241239275Sgonzo 242239275Sgonzo *data = le32toh(buf); 243239275Sgonzo 244239275Sgonzo return (err); 245239275Sgonzo} 246239275Sgonzo 247239275Sgonzo/** 248239275Sgonzo * smsc_write_reg - Writes a 32-bit register on the device 249239275Sgonzo * @sc: driver soft context 250239275Sgonzo * @off: offset of the register 251239275Sgonzo * @data: the 32-bit value to write into the register 252239275Sgonzo * 253239275Sgonzo * LOCKING: 254239275Sgonzo * The device lock must be held before calling this function. 255239275Sgonzo * 256239275Sgonzo * RETURNS: 257239275Sgonzo * 0 on success, a USB_ERR_?? error code on failure. 258239275Sgonzo */ 259239275Sgonzostatic int 260239275Sgonzosmsc_write_reg(struct smsc_softc *sc, uint32_t off, uint32_t data) 261239275Sgonzo{ 262239275Sgonzo struct usb_device_request req; 263239275Sgonzo uint32_t buf; 264239275Sgonzo usb_error_t err; 265239275Sgonzo 266239275Sgonzo SMSC_LOCK_ASSERT(sc, MA_OWNED); 267239275Sgonzo 268239275Sgonzo buf = htole32(data); 269239275Sgonzo 270239275Sgonzo req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 271239275Sgonzo req.bRequest = SMSC_UR_WRITE_REG; 272239275Sgonzo USETW(req.wValue, 0); 273239275Sgonzo USETW(req.wIndex, off); 274239275Sgonzo USETW(req.wLength, 4); 275239275Sgonzo 276239275Sgonzo err = uether_do_request(&sc->sc_ue, &req, &buf, 1000); 277239275Sgonzo if (err != 0) 278239275Sgonzo smsc_warn_printf(sc, "Failed to write register 0x%0x\n", off); 279239275Sgonzo 280239275Sgonzo return (err); 281239275Sgonzo} 282239275Sgonzo 283239275Sgonzo/** 284239275Sgonzo * smsc_wait_for_bits - Polls on a register value until bits are cleared 285239275Sgonzo * @sc: soft context 286239275Sgonzo * @reg: offset of the register 287239275Sgonzo * @bits: if the bits are clear the function returns 288239275Sgonzo * 289239275Sgonzo * LOCKING: 290239275Sgonzo * The device lock must be held before calling this function. 291239275Sgonzo * 292239275Sgonzo * RETURNS: 293239275Sgonzo * 0 on success, or a USB_ERR_?? error code on failure. 294239275Sgonzo */ 295239275Sgonzostatic int 296239275Sgonzosmsc_wait_for_bits(struct smsc_softc *sc, uint32_t reg, uint32_t bits) 297239275Sgonzo{ 298239275Sgonzo usb_ticks_t start_ticks; 299239275Sgonzo const usb_ticks_t max_ticks = USB_MS_TO_TICKS(1000); 300239275Sgonzo uint32_t val; 301239275Sgonzo int err; 302239275Sgonzo 303239275Sgonzo SMSC_LOCK_ASSERT(sc, MA_OWNED); 304239275Sgonzo 305239275Sgonzo start_ticks = (usb_ticks_t)ticks; 306239275Sgonzo do { 307239275Sgonzo if ((err = smsc_read_reg(sc, reg, &val)) != 0) 308239275Sgonzo return (err); 309239275Sgonzo if (!(val & bits)) 310239275Sgonzo return (0); 311239275Sgonzo 312239275Sgonzo uether_pause(&sc->sc_ue, hz / 100); 313239275Sgonzo } while (((usb_ticks_t)(ticks - start_ticks)) < max_ticks); 314239275Sgonzo 315239275Sgonzo return (USB_ERR_TIMEOUT); 316239275Sgonzo} 317239275Sgonzo 318239275Sgonzo/** 319239275Sgonzo * smsc_eeprom_read - Reads the attached EEPROM 320239275Sgonzo * @sc: soft context 321239275Sgonzo * @off: the eeprom address offset 322239275Sgonzo * @buf: stores the bytes 323239275Sgonzo * @buflen: the number of bytes to read 324239275Sgonzo * 325239275Sgonzo * Simply reads bytes from an attached eeprom. 326239275Sgonzo * 327239275Sgonzo * LOCKING: 328239275Sgonzo * The function takes and releases the device lock if it is not already held. 329239275Sgonzo * 330239275Sgonzo * RETURNS: 331240804Shselasky * 0 on success, or a USB_ERR_?? error code on failure. 332239275Sgonzo */ 333239275Sgonzostatic int 334239275Sgonzosmsc_eeprom_read(struct smsc_softc *sc, uint16_t off, uint8_t *buf, uint16_t buflen) 335239275Sgonzo{ 336239275Sgonzo usb_ticks_t start_ticks; 337239275Sgonzo const usb_ticks_t max_ticks = USB_MS_TO_TICKS(1000); 338239275Sgonzo int err; 339239275Sgonzo int locked; 340239275Sgonzo uint32_t val; 341239275Sgonzo uint16_t i; 342239275Sgonzo 343239275Sgonzo locked = mtx_owned(&sc->sc_mtx); 344239275Sgonzo if (!locked) 345240804Shselasky SMSC_LOCK(sc); 346239275Sgonzo 347239275Sgonzo err = smsc_wait_for_bits(sc, SMSC_EEPROM_CMD, SMSC_EEPROM_CMD_BUSY); 348239275Sgonzo if (err != 0) { 349239275Sgonzo smsc_warn_printf(sc, "eeprom busy, failed to read data\n"); 350239275Sgonzo goto done; 351239275Sgonzo } 352239275Sgonzo 353239275Sgonzo /* start reading the bytes, one at a time */ 354239275Sgonzo for (i = 0; i < buflen; i++) { 355239275Sgonzo 356239275Sgonzo val = SMSC_EEPROM_CMD_BUSY | (SMSC_EEPROM_CMD_ADDR_MASK & (off + i)); 357239275Sgonzo if ((err = smsc_write_reg(sc, SMSC_EEPROM_CMD, val)) != 0) 358239275Sgonzo goto done; 359239275Sgonzo 360239275Sgonzo start_ticks = (usb_ticks_t)ticks; 361239275Sgonzo do { 362239275Sgonzo if ((err = smsc_read_reg(sc, SMSC_EEPROM_CMD, &val)) != 0) 363239275Sgonzo goto done; 364239275Sgonzo if (!(val & SMSC_EEPROM_CMD_BUSY) || (val & SMSC_EEPROM_CMD_TIMEOUT)) 365239275Sgonzo break; 366239275Sgonzo 367239275Sgonzo uether_pause(&sc->sc_ue, hz / 100); 368239275Sgonzo } while (((usb_ticks_t)(ticks - start_ticks)) < max_ticks); 369240806Shselasky 370239275Sgonzo if (val & (SMSC_EEPROM_CMD_BUSY | SMSC_EEPROM_CMD_TIMEOUT)) { 371239275Sgonzo smsc_warn_printf(sc, "eeprom command failed\n"); 372239275Sgonzo err = USB_ERR_IOERROR; 373239275Sgonzo break; 374239275Sgonzo } 375239275Sgonzo 376239275Sgonzo if ((err = smsc_read_reg(sc, SMSC_EEPROM_DATA, &val)) != 0) 377239275Sgonzo goto done; 378239275Sgonzo 379239275Sgonzo buf[i] = (val & 0xff); 380239275Sgonzo } 381239275Sgonzo 382239275Sgonzodone: 383239275Sgonzo if (!locked) 384239275Sgonzo SMSC_UNLOCK(sc); 385239275Sgonzo 386239275Sgonzo return (err); 387239275Sgonzo} 388239275Sgonzo 389239275Sgonzo/** 390239275Sgonzo * smsc_miibus_readreg - Reads a MII/MDIO register 391239275Sgonzo * @dev: usb ether device 392239275Sgonzo * @phy: the number of phy reading from 393239275Sgonzo * @reg: the register address 394239275Sgonzo * 395239275Sgonzo * Attempts to read a phy register over the MII bus. 396239275Sgonzo * 397239275Sgonzo * LOCKING: 398239275Sgonzo * Takes and releases the device mutex lock if not already held. 399239275Sgonzo * 400240806Shselasky * RETURNS: 401240806Shselasky * Returns the 16-bits read from the MII register, if this function fails 0 402239275Sgonzo * is returned. 403239275Sgonzo */ 404239275Sgonzostatic int 405239275Sgonzosmsc_miibus_readreg(device_t dev, int phy, int reg) 406239275Sgonzo{ 407239275Sgonzo struct smsc_softc *sc = device_get_softc(dev); 408239275Sgonzo int locked; 409239275Sgonzo uint32_t addr; 410239275Sgonzo uint32_t val = 0; 411239275Sgonzo 412239275Sgonzo locked = mtx_owned(&sc->sc_mtx); 413239275Sgonzo if (!locked) 414239275Sgonzo SMSC_LOCK(sc); 415239275Sgonzo 416239275Sgonzo if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) { 417239275Sgonzo smsc_warn_printf(sc, "MII is busy\n"); 418239275Sgonzo goto done; 419239275Sgonzo } 420239275Sgonzo 421239275Sgonzo addr = (phy << 11) | (reg << 6) | SMSC_MII_READ; 422239275Sgonzo smsc_write_reg(sc, SMSC_MII_ADDR, addr); 423239275Sgonzo 424239275Sgonzo if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) 425239275Sgonzo smsc_warn_printf(sc, "MII read timeout\n"); 426239275Sgonzo 427239275Sgonzo smsc_read_reg(sc, SMSC_MII_DATA, &val); 428239275Sgonzo val = le32toh(val); 429239275Sgonzo 430239275Sgonzodone: 431239275Sgonzo if (!locked) 432239275Sgonzo SMSC_UNLOCK(sc); 433239275Sgonzo 434239275Sgonzo return (val & 0xFFFF); 435239275Sgonzo} 436239275Sgonzo 437239275Sgonzo/** 438239275Sgonzo * smsc_miibus_writereg - Writes a MII/MDIO register 439239275Sgonzo * @dev: usb ether device 440239275Sgonzo * @phy: the number of phy writing to 441239275Sgonzo * @reg: the register address 442239275Sgonzo * @val: the value to write 443239275Sgonzo * 444239275Sgonzo * Attempts to write a phy register over the MII bus. 445239275Sgonzo * 446239275Sgonzo * LOCKING: 447239275Sgonzo * Takes and releases the device mutex lock if not already held. 448239275Sgonzo * 449239275Sgonzo * RETURNS: 450239275Sgonzo * Always returns 0 regardless of success or failure. 451239275Sgonzo */ 452239275Sgonzostatic int 453239275Sgonzosmsc_miibus_writereg(device_t dev, int phy, int reg, int val) 454239275Sgonzo{ 455239275Sgonzo struct smsc_softc *sc = device_get_softc(dev); 456239275Sgonzo int locked; 457239275Sgonzo uint32_t addr; 458239275Sgonzo 459239275Sgonzo if (sc->sc_phyno != phy) 460239275Sgonzo return (0); 461239275Sgonzo 462239275Sgonzo locked = mtx_owned(&sc->sc_mtx); 463239275Sgonzo if (!locked) 464239275Sgonzo SMSC_LOCK(sc); 465239275Sgonzo 466239275Sgonzo if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) { 467239275Sgonzo smsc_warn_printf(sc, "MII is busy\n"); 468239275Sgonzo goto done; 469239275Sgonzo } 470239275Sgonzo 471239275Sgonzo val = htole32(val); 472239275Sgonzo smsc_write_reg(sc, SMSC_MII_DATA, val); 473239275Sgonzo 474239275Sgonzo addr = (phy << 11) | (reg << 6) | SMSC_MII_WRITE; 475239275Sgonzo smsc_write_reg(sc, SMSC_MII_ADDR, addr); 476239275Sgonzo 477239275Sgonzo if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) 478239275Sgonzo smsc_warn_printf(sc, "MII write timeout\n"); 479239275Sgonzo 480239275Sgonzodone: 481239275Sgonzo if (!locked) 482239275Sgonzo SMSC_UNLOCK(sc); 483239275Sgonzo return (0); 484239275Sgonzo} 485239275Sgonzo 486239275Sgonzo 487239275Sgonzo 488239275Sgonzo/** 489239275Sgonzo * smsc_miibus_statchg - Called to detect phy status change 490239275Sgonzo * @dev: usb ether device 491239275Sgonzo * 492239275Sgonzo * This function is called periodically by the system to poll for status 493239275Sgonzo * changes of the link. 494239275Sgonzo * 495239275Sgonzo * LOCKING: 496239275Sgonzo * Takes and releases the device mutex lock if not already held. 497239275Sgonzo */ 498239275Sgonzostatic void 499239275Sgonzosmsc_miibus_statchg(device_t dev) 500239275Sgonzo{ 501239275Sgonzo struct smsc_softc *sc = device_get_softc(dev); 502239275Sgonzo struct mii_data *mii = uether_getmii(&sc->sc_ue); 503239275Sgonzo struct ifnet *ifp; 504239275Sgonzo int locked; 505239275Sgonzo int err; 506239275Sgonzo uint32_t flow; 507239275Sgonzo uint32_t afc_cfg; 508239275Sgonzo 509239275Sgonzo locked = mtx_owned(&sc->sc_mtx); 510239275Sgonzo if (!locked) 511239275Sgonzo SMSC_LOCK(sc); 512239275Sgonzo 513239275Sgonzo ifp = uether_getifp(&sc->sc_ue); 514239275Sgonzo if (mii == NULL || ifp == NULL || 515239275Sgonzo (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 516239275Sgonzo goto done; 517239275Sgonzo 518239275Sgonzo /* Use the MII status to determine link status */ 519239275Sgonzo sc->sc_flags &= ~SMSC_FLAG_LINK; 520239275Sgonzo if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 521239275Sgonzo (IFM_ACTIVE | IFM_AVALID)) { 522239275Sgonzo switch (IFM_SUBTYPE(mii->mii_media_active)) { 523239275Sgonzo case IFM_10_T: 524239275Sgonzo case IFM_100_TX: 525239275Sgonzo sc->sc_flags |= SMSC_FLAG_LINK; 526239275Sgonzo break; 527239275Sgonzo case IFM_1000_T: 528239275Sgonzo /* Gigabit ethernet not supported by chipset */ 529239275Sgonzo break; 530239275Sgonzo default: 531239275Sgonzo break; 532239275Sgonzo } 533239275Sgonzo } 534239275Sgonzo 535239275Sgonzo /* Lost link, do nothing. */ 536239275Sgonzo if ((sc->sc_flags & SMSC_FLAG_LINK) == 0) { 537239275Sgonzo smsc_dbg_printf(sc, "link flag not set\n"); 538239275Sgonzo goto done; 539239275Sgonzo } 540239275Sgonzo 541239275Sgonzo err = smsc_read_reg(sc, SMSC_AFC_CFG, &afc_cfg); 542239275Sgonzo if (err) { 543239275Sgonzo smsc_warn_printf(sc, "failed to read initial AFC_CFG, error %d\n", err); 544239275Sgonzo goto done; 545239275Sgonzo } 546239275Sgonzo 547239275Sgonzo /* Enable/disable full duplex operation and TX/RX pause */ 548239275Sgonzo if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) { 549239275Sgonzo smsc_dbg_printf(sc, "full duplex operation\n"); 550239275Sgonzo sc->sc_mac_csr &= ~SMSC_MAC_CSR_RCVOWN; 551239275Sgonzo sc->sc_mac_csr |= SMSC_MAC_CSR_FDPX; 552239275Sgonzo 553239275Sgonzo if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0) 554239275Sgonzo flow = 0xffff0002; 555239275Sgonzo else 556239275Sgonzo flow = 0; 557239275Sgonzo 558239275Sgonzo if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0) 559239275Sgonzo afc_cfg |= 0xf; 560239275Sgonzo else 561239275Sgonzo afc_cfg &= ~0xf; 562239275Sgonzo 563239275Sgonzo } else { 564239275Sgonzo smsc_dbg_printf(sc, "half duplex operation\n"); 565239275Sgonzo sc->sc_mac_csr &= ~SMSC_MAC_CSR_FDPX; 566239275Sgonzo sc->sc_mac_csr |= SMSC_MAC_CSR_RCVOWN; 567239275Sgonzo 568239275Sgonzo flow = 0; 569239275Sgonzo afc_cfg |= 0xf; 570239275Sgonzo } 571239275Sgonzo 572239275Sgonzo err = smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr); 573239275Sgonzo err += smsc_write_reg(sc, SMSC_FLOW, flow); 574239275Sgonzo err += smsc_write_reg(sc, SMSC_AFC_CFG, afc_cfg); 575239275Sgonzo if (err) 576239275Sgonzo smsc_warn_printf(sc, "media change failed, error %d\n", err); 577239275Sgonzo 578239275Sgonzodone: 579239275Sgonzo if (!locked) 580239275Sgonzo SMSC_UNLOCK(sc); 581239275Sgonzo} 582239275Sgonzo 583239275Sgonzo/** 584239275Sgonzo * smsc_ifmedia_upd - Set media options 585239275Sgonzo * @ifp: interface pointer 586239275Sgonzo * 587239275Sgonzo * Basically boilerplate code that simply calls the mii functions to set the 588239275Sgonzo * media options. 589239275Sgonzo * 590239275Sgonzo * LOCKING: 591239275Sgonzo * The device lock must be held before this function is called. 592239275Sgonzo * 593239275Sgonzo * RETURNS: 594239275Sgonzo * Returns 0 on success or a negative error code. 595239275Sgonzo */ 596239275Sgonzostatic int 597239275Sgonzosmsc_ifmedia_upd(struct ifnet *ifp) 598239275Sgonzo{ 599239275Sgonzo struct smsc_softc *sc = ifp->if_softc; 600239275Sgonzo struct mii_data *mii = uether_getmii(&sc->sc_ue); 601239275Sgonzo int err; 602239275Sgonzo 603239275Sgonzo SMSC_LOCK_ASSERT(sc, MA_OWNED); 604239275Sgonzo 605239275Sgonzo if (mii->mii_instance) { 606239275Sgonzo struct mii_softc *miisc; 607239275Sgonzo 608239275Sgonzo LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 609239275Sgonzo mii_phy_reset(miisc); 610239275Sgonzo } 611239275Sgonzo err = mii_mediachg(mii); 612239275Sgonzo return (err); 613239275Sgonzo} 614239275Sgonzo 615239275Sgonzo/** 616239275Sgonzo * smsc_ifmedia_sts - Report current media status 617239275Sgonzo * @ifp: inet interface pointer 618239275Sgonzo * @ifmr: interface media request 619239275Sgonzo * 620239275Sgonzo * Basically boilerplate code that simply calls the mii functions to get the 621239275Sgonzo * media status. 622239275Sgonzo * 623239275Sgonzo * LOCKING: 624239275Sgonzo * Internally takes and releases the device lock. 625239275Sgonzo */ 626239275Sgonzostatic void 627239275Sgonzosmsc_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 628239275Sgonzo{ 629239275Sgonzo struct smsc_softc *sc = ifp->if_softc; 630239275Sgonzo struct mii_data *mii = uether_getmii(&sc->sc_ue); 631239275Sgonzo 632239275Sgonzo SMSC_LOCK(sc); 633251734Skevlo 634239275Sgonzo mii_pollstat(mii); 635239275Sgonzo 636239275Sgonzo SMSC_UNLOCK(sc); 637239275Sgonzo 638251734Skevlo ifmr->ifm_active = mii->mii_media_active; 639251734Skevlo ifmr->ifm_status = mii->mii_media_status; 640239275Sgonzo} 641239275Sgonzo 642239275Sgonzo/** 643239275Sgonzo * smsc_hash - Calculate the hash of a mac address 644239275Sgonzo * @addr: The mac address to calculate the hash on 645239275Sgonzo * 646239275Sgonzo * This function is used when configuring a range of m'cast mac addresses to 647239275Sgonzo * filter on. The hash of the mac address is put in the device's mac hash 648239275Sgonzo * table. 649239275Sgonzo * 650239275Sgonzo * RETURNS: 651239275Sgonzo * Returns a value from 0-63 value which is the hash of the mac address. 652239275Sgonzo */ 653239275Sgonzostatic inline uint32_t 654239275Sgonzosmsc_hash(uint8_t addr[ETHER_ADDR_LEN]) 655239275Sgonzo{ 656239275Sgonzo return (ether_crc32_be(addr, ETHER_ADDR_LEN) >> 26) & 0x3f; 657239275Sgonzo} 658239275Sgonzo 659239275Sgonzo/** 660239275Sgonzo * smsc_setmulti - Setup multicast 661239275Sgonzo * @ue: usb ethernet device context 662239275Sgonzo * 663239275Sgonzo * Tells the device to either accept frames with a multicast mac address, a 664239275Sgonzo * select group of m'cast mac addresses or just the devices mac address. 665251734Skevlo * 666239275Sgonzo * LOCKING: 667239275Sgonzo * Should be called with the SMSC lock held. 668239275Sgonzo */ 669239275Sgonzostatic void 670239275Sgonzosmsc_setmulti(struct usb_ether *ue) 671239275Sgonzo{ 672239275Sgonzo struct smsc_softc *sc = uether_getsc(ue); 673239275Sgonzo struct ifnet *ifp = uether_getifp(ue); 674239275Sgonzo struct ifmultiaddr *ifma; 675239275Sgonzo uint32_t hashtbl[2] = { 0, 0 }; 676239275Sgonzo uint32_t hash; 677239275Sgonzo 678239275Sgonzo SMSC_LOCK_ASSERT(sc, MA_OWNED); 679239275Sgonzo 680239275Sgonzo if (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) { 681239275Sgonzo smsc_dbg_printf(sc, "receive all multicast enabled\n"); 682239275Sgonzo sc->sc_mac_csr |= SMSC_MAC_CSR_MCPAS; 683239275Sgonzo sc->sc_mac_csr &= ~SMSC_MAC_CSR_HPFILT; 684239275Sgonzo 685239275Sgonzo } else { 686239275Sgonzo /* Take the lock of the mac address list before hashing each of them */ 687239275Sgonzo if_maddr_rlock(ifp); 688239275Sgonzo 689239275Sgonzo if (!TAILQ_EMPTY(&ifp->if_multiaddrs)) { 690239275Sgonzo /* We are filtering on a set of address so calculate hashes of each 691239275Sgonzo * of the address and set the corresponding bits in the register. 692239275Sgonzo */ 693239275Sgonzo sc->sc_mac_csr |= SMSC_MAC_CSR_HPFILT; 694239275Sgonzo sc->sc_mac_csr &= ~(SMSC_MAC_CSR_PRMS | SMSC_MAC_CSR_MCPAS); 695239275Sgonzo 696239275Sgonzo TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 697239275Sgonzo if (ifma->ifma_addr->sa_family != AF_LINK) 698239275Sgonzo continue; 699239275Sgonzo 700239275Sgonzo hash = smsc_hash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); 701239275Sgonzo hashtbl[hash >> 5] |= 1 << (hash & 0x1F); 702239275Sgonzo } 703239275Sgonzo } else { 704239275Sgonzo /* Only receive packets with destination set to our mac address */ 705239275Sgonzo sc->sc_mac_csr &= ~(SMSC_MAC_CSR_MCPAS | SMSC_MAC_CSR_HPFILT); 706239275Sgonzo } 707239275Sgonzo 708239275Sgonzo if_maddr_runlock(ifp); 709239275Sgonzo 710239275Sgonzo /* Debug */ 711239275Sgonzo if (sc->sc_mac_csr & SMSC_MAC_CSR_HPFILT) 712239275Sgonzo smsc_dbg_printf(sc, "receive select group of macs\n"); 713239275Sgonzo else 714239275Sgonzo smsc_dbg_printf(sc, "receive own packets only\n"); 715239275Sgonzo } 716239275Sgonzo 717239275Sgonzo /* Write the hash table and mac control registers */ 718239275Sgonzo smsc_write_reg(sc, SMSC_HASHH, hashtbl[1]); 719239275Sgonzo smsc_write_reg(sc, SMSC_HASHL, hashtbl[0]); 720239275Sgonzo smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr); 721239275Sgonzo} 722239275Sgonzo 723239275Sgonzo 724239275Sgonzo/** 725239275Sgonzo * smsc_setpromisc - Enables/disables promiscuous mode 726239275Sgonzo * @ue: usb ethernet device context 727239275Sgonzo * 728239275Sgonzo * LOCKING: 729239275Sgonzo * Should be called with the SMSC lock held. 730239275Sgonzo */ 731239275Sgonzostatic void 732239275Sgonzosmsc_setpromisc(struct usb_ether *ue) 733239275Sgonzo{ 734239275Sgonzo struct smsc_softc *sc = uether_getsc(ue); 735239275Sgonzo struct ifnet *ifp = uether_getifp(ue); 736239275Sgonzo 737239275Sgonzo smsc_dbg_printf(sc, "promiscuous mode %sabled\n", 738239275Sgonzo (ifp->if_flags & IFF_PROMISC) ? "en" : "dis"); 739239275Sgonzo 740239275Sgonzo SMSC_LOCK_ASSERT(sc, MA_OWNED); 741239275Sgonzo 742239275Sgonzo if (ifp->if_flags & IFF_PROMISC) 743239275Sgonzo sc->sc_mac_csr |= SMSC_MAC_CSR_PRMS; 744239275Sgonzo else 745239275Sgonzo sc->sc_mac_csr &= ~SMSC_MAC_CSR_PRMS; 746239275Sgonzo 747239275Sgonzo smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr); 748239275Sgonzo} 749239275Sgonzo 750239275Sgonzo 751239275Sgonzo/** 752239275Sgonzo * smsc_sethwcsum - Enable or disable H/W UDP and TCP checksumming 753239275Sgonzo * @sc: driver soft context 754239275Sgonzo * 755239275Sgonzo * LOCKING: 756239275Sgonzo * Should be called with the SMSC lock held. 757239275Sgonzo * 758239275Sgonzo * RETURNS: 759239275Sgonzo * Returns 0 on success or a negative error code. 760239275Sgonzo */ 761239275Sgonzostatic int smsc_sethwcsum(struct smsc_softc *sc) 762239275Sgonzo{ 763239275Sgonzo struct ifnet *ifp = uether_getifp(&sc->sc_ue); 764239275Sgonzo uint32_t val; 765239275Sgonzo int err; 766239275Sgonzo 767239275Sgonzo if (!ifp) 768239275Sgonzo return (-EIO); 769239275Sgonzo 770239275Sgonzo SMSC_LOCK_ASSERT(sc, MA_OWNED); 771239275Sgonzo 772239275Sgonzo err = smsc_read_reg(sc, SMSC_COE_CTRL, &val); 773239275Sgonzo if (err != 0) { 774239275Sgonzo smsc_warn_printf(sc, "failed to read SMSC_COE_CTRL (err=%d)\n", err); 775239275Sgonzo return (err); 776239275Sgonzo } 777239275Sgonzo 778239275Sgonzo /* Enable/disable the Rx checksum */ 779239275Sgonzo if ((ifp->if_capabilities & ifp->if_capenable) & IFCAP_RXCSUM) 780239275Sgonzo val |= SMSC_COE_CTRL_RX_EN; 781239275Sgonzo else 782239275Sgonzo val &= ~SMSC_COE_CTRL_RX_EN; 783239275Sgonzo 784239275Sgonzo /* Enable/disable the Tx checksum (currently not supported) */ 785239275Sgonzo if ((ifp->if_capabilities & ifp->if_capenable) & IFCAP_TXCSUM) 786239275Sgonzo val |= SMSC_COE_CTRL_TX_EN; 787239275Sgonzo else 788239275Sgonzo val &= ~SMSC_COE_CTRL_TX_EN; 789239275Sgonzo 790239275Sgonzo err = smsc_write_reg(sc, SMSC_COE_CTRL, val); 791239275Sgonzo if (err != 0) { 792239275Sgonzo smsc_warn_printf(sc, "failed to write SMSC_COE_CTRL (err=%d)\n", err); 793239275Sgonzo return (err); 794239275Sgonzo } 795239275Sgonzo 796239275Sgonzo return (0); 797239275Sgonzo} 798239275Sgonzo 799239275Sgonzo 800239275Sgonzo/** 801239275Sgonzo * smsc_setmacaddress - Sets the mac address in the device 802239275Sgonzo * @sc: driver soft context 803239275Sgonzo * @addr: pointer to array contain at least 6 bytes of the mac 804239275Sgonzo * 805239275Sgonzo * Writes the MAC address into the device, usually the MAC is programmed with 806239275Sgonzo * values from the EEPROM. 807239275Sgonzo * 808239275Sgonzo * LOCKING: 809239275Sgonzo * Should be called with the SMSC lock held. 810239275Sgonzo * 811239275Sgonzo * RETURNS: 812239275Sgonzo * Returns 0 on success or a negative error code. 813239275Sgonzo */ 814239275Sgonzostatic int 815239275Sgonzosmsc_setmacaddress(struct smsc_softc *sc, const uint8_t *addr) 816239275Sgonzo{ 817239275Sgonzo int err; 818239275Sgonzo uint32_t val; 819239275Sgonzo 820239275Sgonzo smsc_dbg_printf(sc, "setting mac address to %02x:%02x:%02x:%02x:%02x:%02x\n", 821239275Sgonzo addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 822239275Sgonzo 823239275Sgonzo SMSC_LOCK_ASSERT(sc, MA_OWNED); 824239275Sgonzo 825239275Sgonzo val = (addr[3] << 24) | (addr[2] << 16) | (addr[1] << 8) | addr[0]; 826239275Sgonzo if ((err = smsc_write_reg(sc, SMSC_MAC_ADDRL, val)) != 0) 827239275Sgonzo goto done; 828239275Sgonzo 829239275Sgonzo val = (addr[5] << 8) | addr[4]; 830239275Sgonzo err = smsc_write_reg(sc, SMSC_MAC_ADDRH, val); 831239275Sgonzo 832239275Sgonzodone: 833239275Sgonzo return (err); 834239275Sgonzo} 835239275Sgonzo 836239275Sgonzo/** 837239275Sgonzo * smsc_reset - Reset the SMSC chip 838239275Sgonzo * @sc: device soft context 839239275Sgonzo * 840239275Sgonzo * LOCKING: 841239275Sgonzo * Should be called with the SMSC lock held. 842239275Sgonzo */ 843239275Sgonzostatic void 844239275Sgonzosmsc_reset(struct smsc_softc *sc) 845239275Sgonzo{ 846239275Sgonzo struct usb_config_descriptor *cd; 847239275Sgonzo usb_error_t err; 848239275Sgonzo 849239275Sgonzo cd = usbd_get_config_descriptor(sc->sc_ue.ue_udev); 850239275Sgonzo 851239275Sgonzo err = usbd_req_set_config(sc->sc_ue.ue_udev, &sc->sc_mtx, 852239275Sgonzo cd->bConfigurationValue); 853239275Sgonzo if (err) 854239275Sgonzo smsc_warn_printf(sc, "reset failed (ignored)\n"); 855239275Sgonzo 856239275Sgonzo /* Wait a little while for the chip to get its brains in order. */ 857239275Sgonzo uether_pause(&sc->sc_ue, hz / 100); 858239275Sgonzo 859239275Sgonzo /* Reinitialize controller to achieve full reset. */ 860239275Sgonzo smsc_chip_init(sc); 861239275Sgonzo} 862239275Sgonzo 863239275Sgonzo 864239275Sgonzo/** 865239275Sgonzo * smsc_init - Initialises the LAN95xx chip 866239275Sgonzo * @ue: USB ether interface 867239275Sgonzo * 868239275Sgonzo * Called when the interface is brought up (i.e. ifconfig ue0 up), this 869239275Sgonzo * initialise the interface and the rx/tx pipes. 870239275Sgonzo * 871239275Sgonzo * LOCKING: 872239275Sgonzo * Should be called with the SMSC lock held. 873239275Sgonzo */ 874239275Sgonzostatic void 875239275Sgonzosmsc_init(struct usb_ether *ue) 876239275Sgonzo{ 877239275Sgonzo struct smsc_softc *sc = uether_getsc(ue); 878239275Sgonzo struct ifnet *ifp = uether_getifp(ue); 879239275Sgonzo 880239275Sgonzo SMSC_LOCK_ASSERT(sc, MA_OWNED); 881239275Sgonzo 882239275Sgonzo if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) 883239275Sgonzo return; 884239275Sgonzo 885239275Sgonzo /* Cancel pending I/O */ 886239275Sgonzo smsc_stop(ue); 887239275Sgonzo 888239275Sgonzo#if __FreeBSD_version <= 1000000 889239275Sgonzo /* On earlier versions this was the first place we could tell the system 890239275Sgonzo * that we supported h/w csuming, however this is only called after the 891239275Sgonzo * the interface has been brought up - not ideal. 892239275Sgonzo */ 893239275Sgonzo if (!(ifp->if_capabilities & IFCAP_RXCSUM)) { 894239275Sgonzo ifp->if_capabilities |= IFCAP_RXCSUM; 895239275Sgonzo ifp->if_capenable |= IFCAP_RXCSUM; 896239275Sgonzo ifp->if_hwassist = 0; 897239275Sgonzo } 898239275Sgonzo 899239275Sgonzo /* TX checksuming is disabled for now 900239275Sgonzo ifp->if_capabilities |= IFCAP_TXCSUM; 901239275Sgonzo ifp->if_capenable |= IFCAP_TXCSUM; 902239275Sgonzo ifp->if_hwassist = CSUM_TCP | CSUM_UDP; 903239275Sgonzo */ 904239275Sgonzo#endif 905239275Sgonzo 906239275Sgonzo /* Reset the ethernet interface. */ 907239275Sgonzo smsc_reset(sc); 908239275Sgonzo 909239275Sgonzo /* Load the multicast filter. */ 910239275Sgonzo smsc_setmulti(ue); 911239275Sgonzo 912239275Sgonzo /* TCP/UDP checksum offload engines. */ 913239275Sgonzo smsc_sethwcsum(sc); 914239275Sgonzo 915239275Sgonzo usbd_xfer_set_stall(sc->sc_xfer[SMSC_BULK_DT_WR]); 916239275Sgonzo 917239275Sgonzo /* Indicate we are up and running. */ 918239275Sgonzo ifp->if_drv_flags |= IFF_DRV_RUNNING; 919239275Sgonzo 920239275Sgonzo /* Switch to selected media. */ 921239275Sgonzo smsc_ifmedia_upd(ifp); 922239275Sgonzo smsc_start(ue); 923239275Sgonzo} 924239275Sgonzo 925239275Sgonzo/** 926239275Sgonzo * smsc_bulk_read_callback - Read callback used to process the USB URB 927239275Sgonzo * @xfer: the USB transfer 928239275Sgonzo * @error: 929239275Sgonzo * 930239275Sgonzo * Reads the URB data which can contain one or more ethernet frames, the 931239275Sgonzo * frames are copyed into a mbuf and given to the system. 932239275Sgonzo * 933239275Sgonzo * LOCKING: 934239275Sgonzo * No locking required, doesn't access internal driver settings. 935239275Sgonzo */ 936239275Sgonzostatic void 937239275Sgonzosmsc_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 938239275Sgonzo{ 939239275Sgonzo struct smsc_softc *sc = usbd_xfer_softc(xfer); 940239275Sgonzo struct usb_ether *ue = &sc->sc_ue; 941239275Sgonzo struct ifnet *ifp = uether_getifp(ue); 942239275Sgonzo struct mbuf *m; 943239275Sgonzo struct usb_page_cache *pc; 944239275Sgonzo uint32_t rxhdr; 945239275Sgonzo uint16_t pktlen; 946239275Sgonzo int off; 947239275Sgonzo int actlen; 948239275Sgonzo 949239275Sgonzo usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 950239275Sgonzo smsc_dbg_printf(sc, "rx : actlen %d\n", actlen); 951239275Sgonzo 952239275Sgonzo switch (USB_GET_STATE(xfer)) { 953239275Sgonzo case USB_ST_TRANSFERRED: 954239275Sgonzo 955239275Sgonzo /* There is always a zero length frame after bringing the IF up */ 956239275Sgonzo if (actlen < (sizeof(rxhdr) + ETHER_CRC_LEN)) 957239275Sgonzo goto tr_setup; 958239275Sgonzo 959239275Sgonzo /* There maybe multiple packets in the USB frame, each will have a 960239275Sgonzo * header and each needs to have it's own mbuf allocated and populated 961239275Sgonzo * for it. 962239275Sgonzo */ 963239275Sgonzo pc = usbd_xfer_get_frame(xfer, 0); 964239275Sgonzo off = 0; 965239275Sgonzo 966239275Sgonzo while (off < actlen) { 967239275Sgonzo 968239275Sgonzo /* The frame header is always aligned on a 4 byte boundary */ 969239275Sgonzo off = ((off + 0x3) & ~0x3); 970239275Sgonzo 971239275Sgonzo usbd_copy_out(pc, off, &rxhdr, sizeof(rxhdr)); 972239275Sgonzo off += (sizeof(rxhdr) + ETHER_ALIGN); 973239275Sgonzo rxhdr = le32toh(rxhdr); 974239275Sgonzo 975239275Sgonzo pktlen = (uint16_t)SMSC_RX_STAT_FRM_LENGTH(rxhdr); 976239275Sgonzo 977239275Sgonzo smsc_dbg_printf(sc, "rx : rxhdr 0x%08x : pktlen %d : actlen %d : " 978239275Sgonzo "off %d\n", rxhdr, pktlen, actlen, off); 979239275Sgonzo 980239275Sgonzo 981239275Sgonzo if (rxhdr & SMSC_RX_STAT_ERROR) { 982239275Sgonzo smsc_dbg_printf(sc, "rx error (hdr 0x%08x)\n", rxhdr); 983239275Sgonzo ifp->if_ierrors++; 984239275Sgonzo if (rxhdr & SMSC_RX_STAT_COLLISION) 985239275Sgonzo ifp->if_collisions++; 986239275Sgonzo } else { 987239275Sgonzo 988239275Sgonzo /* Check if the ethernet frame is too big or too small */ 989239275Sgonzo if ((pktlen < ETHER_HDR_LEN) || (pktlen > (actlen - off))) 990239275Sgonzo goto tr_setup; 991239275Sgonzo 992239275Sgonzo /* Create a new mbuf to store the packet in */ 993239275Sgonzo m = uether_newbuf(); 994239275Sgonzo if (m == NULL) { 995239275Sgonzo smsc_warn_printf(sc, "failed to create new mbuf\n"); 996239275Sgonzo ifp->if_iqdrops++; 997239275Sgonzo goto tr_setup; 998239275Sgonzo } 999239275Sgonzo 1000239275Sgonzo usbd_copy_out(pc, off, mtod(m, uint8_t *), pktlen); 1001239275Sgonzo 1002239275Sgonzo /* Check if RX TCP/UDP checksumming is being offloaded */ 1003239275Sgonzo if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) { 1004239275Sgonzo 1005239275Sgonzo /* Remove the extra 2 bytes of the csum */ 1006239275Sgonzo pktlen -= 2; 1007239275Sgonzo 1008239275Sgonzo /* The checksum appears to be simplistically calculated 1009271832Sglebius * over the udp/tcp header and data up to the end of the 1010239275Sgonzo * eth frame. Which means if the eth frame is padded 1011271832Sglebius * the csum calculation is incorrectly performed over 1012239275Sgonzo * the padding bytes as well. Therefore to be safe we 1013239275Sgonzo * ignore the H/W csum on frames less than or equal to 1014239275Sgonzo * 64 bytes. 1015239275Sgonzo */ 1016239275Sgonzo if (pktlen > ETHER_MIN_LEN) { 1017239275Sgonzo 1018239275Sgonzo /* Indicate the UDP/TCP csum has been calculated */ 1019239275Sgonzo m->m_pkthdr.csum_flags |= CSUM_DATA_VALID; 1020239275Sgonzo 1021239275Sgonzo /* Copy the TCP/UDP checksum from the last 2 bytes 1022271832Sglebius * of the transfer and put in the csum_data field. 1023239275Sgonzo */ 1024239275Sgonzo usbd_copy_out(pc, (off + pktlen), 1025239275Sgonzo &m->m_pkthdr.csum_data, 2); 1026239275Sgonzo 1027239275Sgonzo /* The data is copied in network order, but the 1028239275Sgonzo * csum algorithm in the kernel expects it to be 1029239275Sgonzo * in host network order. 1030246196Shselasky */ 1031246196Shselasky m->m_pkthdr.csum_data = ntohs(m->m_pkthdr.csum_data); 1032246196Shselasky 1033246196Shselasky smsc_dbg_printf(sc, "RX checksum offloaded (0x%04x)\n", 1034239275Sgonzo m->m_pkthdr.csum_data); 1035239275Sgonzo } 1036239275Sgonzo 1037239275Sgonzo /* Need to adjust the offset as well or we'll be off 1038239275Sgonzo * by 2 because the csum is removed from the packet 1039239275Sgonzo * length. 1040239275Sgonzo */ 1041239275Sgonzo off += 2; 1042239275Sgonzo } 1043239275Sgonzo 1044239275Sgonzo /* Finally enqueue the mbuf on the receive queue */ 1045246196Shselasky uether_rxmbuf(ue, m, pktlen); 1046246196Shselasky } 1047239275Sgonzo 1048265371Stuexen /* Update the offset to move to the next potential packet */ 1049265371Stuexen off += pktlen; 1050265371Stuexen } 1051265371Stuexen 1052265371Stuexen /* FALLTHROUGH */ 1053265371Stuexen 1054265371Stuexen case USB_ST_SETUP: 1055265371Stuexentr_setup: 1056265371Stuexen usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1057265371Stuexen usbd_transfer_submit(xfer); 1058265371Stuexen uether_rxflush(ue); 1059265371Stuexen return; 1060265371Stuexen 1061265371Stuexen default: 1062265371Stuexen if (error != USB_ERR_CANCELLED) { 1063265371Stuexen smsc_warn_printf(sc, "bulk read error, %s\n", usbd_errstr(error)); 1064265371Stuexen usbd_xfer_set_stall(xfer); 1065265371Stuexen goto tr_setup; 1066265371Stuexen } 1067265371Stuexen return; 1068265371Stuexen } 1069265371Stuexen} 1070265371Stuexen 1071265371Stuexen/** 1072265371Stuexen * smsc_bulk_write_callback - Write callback used to send ethernet frame(s) 1073265371Stuexen * @xfer: the USB transfer 1074239275Sgonzo * @error: error code if the transfers is in an errored state 1075239275Sgonzo * 1076239275Sgonzo * The main write function that pulls ethernet frames off the queue and sends 1077239275Sgonzo * them out. 1078239275Sgonzo * 1079239275Sgonzo * LOCKING: 1080239275Sgonzo * 1081239275Sgonzo */ 1082239275Sgonzostatic void 1083239275Sgonzosmsc_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 1084241033Shselasky{ 1085241034Shselasky struct smsc_softc *sc = usbd_xfer_softc(xfer); 1086241034Shselasky struct ifnet *ifp = uether_getifp(&sc->sc_ue); 1087241034Shselasky struct usb_page_cache *pc; 1088241034Shselasky struct mbuf *m; 1089241034Shselasky uint32_t txhdr; 1090239275Sgonzo uint32_t frm_len = 0; 1091239275Sgonzo int nframes; 1092239275Sgonzo 1093239275Sgonzo switch (USB_GET_STATE(xfer)) { 1094239275Sgonzo case USB_ST_TRANSFERRED: 1095239275Sgonzo ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1096239275Sgonzo /* FALLTHROUGH */ 1097239275Sgonzo 1098239275Sgonzo case USB_ST_SETUP: 1099239275Sgonzotr_setup: 1100239275Sgonzo if ((sc->sc_flags & SMSC_FLAG_LINK) == 0 || 1101239275Sgonzo (ifp->if_drv_flags & IFF_DRV_OACTIVE) != 0) { 1102239275Sgonzo /* Don't send anything if there is no link or controller is busy. */ 1103239275Sgonzo return; 1104239275Sgonzo } 1105239275Sgonzo 1106239275Sgonzo for (nframes = 0; nframes < 16 && 1107239275Sgonzo !IFQ_DRV_IS_EMPTY(&ifp->if_snd); nframes++) { 1108239275Sgonzo IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1109239275Sgonzo if (m == NULL) 1110239275Sgonzo break; 1111239275Sgonzo usbd_xfer_set_frame_offset(xfer, nframes * MCLBYTES, 1112239275Sgonzo nframes); 1113239275Sgonzo frm_len = 0; 1114239275Sgonzo pc = usbd_xfer_get_frame(xfer, nframes); 1115239275Sgonzo 1116239275Sgonzo /* Each frame is prefixed with two 32-bit values describing the 1117239275Sgonzo * length of the packet and buffer. 1118239275Sgonzo */ 1119239275Sgonzo txhdr = SMSC_TX_CTRL_0_BUF_SIZE(m->m_pkthdr.len) | 1120239275Sgonzo SMSC_TX_CTRL_0_FIRST_SEG | SMSC_TX_CTRL_0_LAST_SEG; 1121239275Sgonzo txhdr = htole32(txhdr); 1122239275Sgonzo usbd_copy_in(pc, 0, &txhdr, sizeof(txhdr)); 1123239275Sgonzo 1124239275Sgonzo txhdr = SMSC_TX_CTRL_1_PKT_LENGTH(m->m_pkthdr.len); 1125239275Sgonzo txhdr = htole32(txhdr); 1126239275Sgonzo usbd_copy_in(pc, 4, &txhdr, sizeof(txhdr)); 1127239275Sgonzo 1128239275Sgonzo frm_len += 8; 1129239275Sgonzo 1130239275Sgonzo /* Next copy in the actual packet */ 1131239275Sgonzo usbd_m_copy_in(pc, frm_len, m, 0, m->m_pkthdr.len); 1132239275Sgonzo frm_len += m->m_pkthdr.len; 1133239275Sgonzo 1134239275Sgonzo ifp->if_opackets++; 1135239275Sgonzo 1136239275Sgonzo /* If there's a BPF listener, bounce a copy of this frame to him */ 1137239275Sgonzo BPF_MTAP(ifp, m); 1138239275Sgonzo 1139239275Sgonzo m_freem(m); 1140239275Sgonzo 1141239275Sgonzo /* Set frame length. */ 1142239275Sgonzo usbd_xfer_set_frame_len(xfer, nframes, frm_len); 1143239275Sgonzo } 1144239275Sgonzo if (nframes != 0) { 1145239275Sgonzo usbd_xfer_set_frames(xfer, nframes); 1146239275Sgonzo usbd_transfer_submit(xfer); 1147239275Sgonzo ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1148239275Sgonzo } 1149239275Sgonzo return; 1150239275Sgonzo 1151239275Sgonzo default: 1152239275Sgonzo ifp->if_oerrors++; 1153239275Sgonzo ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1154239275Sgonzo 1155239275Sgonzo if (error != USB_ERR_CANCELLED) { 1156239275Sgonzo smsc_err_printf(sc, "usb error on tx: %s\n", usbd_errstr(error)); 1157239275Sgonzo usbd_xfer_set_stall(xfer); 1158239275Sgonzo goto tr_setup; 1159239275Sgonzo } 1160239275Sgonzo return; 1161239275Sgonzo } 1162239275Sgonzo} 1163239275Sgonzo 1164239275Sgonzo/** 1165239275Sgonzo * smsc_tick - Called periodically to monitor the state of the LAN95xx chip 1166239275Sgonzo * @ue: USB ether interface 1167239275Sgonzo * 1168239275Sgonzo * Simply calls the mii status functions to check the state of the link. 1169239275Sgonzo * 1170239275Sgonzo * LOCKING: 1171239275Sgonzo * Should be called with the SMSC lock held. 1172239275Sgonzo */ 1173239275Sgonzostatic void 1174239275Sgonzosmsc_tick(struct usb_ether *ue) 1175239275Sgonzo{ 1176239275Sgonzo struct smsc_softc *sc = uether_getsc(ue); 1177239275Sgonzo struct mii_data *mii = uether_getmii(&sc->sc_ue);; 1178271832Sglebius 1179239275Sgonzo SMSC_LOCK_ASSERT(sc, MA_OWNED); 1180239275Sgonzo 1181239275Sgonzo mii_tick(mii); 1182239275Sgonzo if ((sc->sc_flags & SMSC_FLAG_LINK) == 0) { 1183239275Sgonzo smsc_miibus_statchg(ue->ue_dev); 1184239275Sgonzo if ((sc->sc_flags & SMSC_FLAG_LINK) != 0) 1185239275Sgonzo smsc_start(ue); 1186239275Sgonzo } 1187239275Sgonzo} 1188239275Sgonzo 1189239275Sgonzo/** 1190239275Sgonzo * smsc_start - Starts communication with the LAN95xx chip 1191239275Sgonzo * @ue: USB ether interface 1192239275Sgonzo * 1193239275Sgonzo * 1194239275Sgonzo * 1195239275Sgonzo */ 1196271832Sglebiusstatic void 1197239275Sgonzosmsc_start(struct usb_ether *ue) 1198239275Sgonzo{ 1199239275Sgonzo struct smsc_softc *sc = uether_getsc(ue); 1200239275Sgonzo 1201239275Sgonzo /* 1202239275Sgonzo * start the USB transfers, if not already started: 1203239275Sgonzo */ 1204239275Sgonzo usbd_transfer_start(sc->sc_xfer[SMSC_BULK_DT_RD]); 1205239275Sgonzo usbd_transfer_start(sc->sc_xfer[SMSC_BULK_DT_WR]); 1206239275Sgonzo} 1207239275Sgonzo 1208239275Sgonzo/** 1209239275Sgonzo * smsc_stop - Stops communication with the LAN95xx chip 1210239275Sgonzo * @ue: USB ether interface 1211239275Sgonzo * 1212239275Sgonzo * 1213239275Sgonzo * 1214239275Sgonzo */ 1215239275Sgonzostatic void 1216239275Sgonzosmsc_stop(struct usb_ether *ue) 1217239275Sgonzo{ 1218239275Sgonzo struct smsc_softc *sc = uether_getsc(ue); 1219239275Sgonzo struct ifnet *ifp = uether_getifp(ue); 1220239275Sgonzo 1221241844Seadler SMSC_LOCK_ASSERT(sc, MA_OWNED); 1222239275Sgonzo 1223239275Sgonzo ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 1224239275Sgonzo sc->sc_flags &= ~SMSC_FLAG_LINK; 1225239275Sgonzo 1226239275Sgonzo /* 1227239275Sgonzo * stop all the transfers, if not already stopped: 1228239275Sgonzo */ 1229239275Sgonzo usbd_transfer_stop(sc->sc_xfer[SMSC_BULK_DT_WR]); 1230239275Sgonzo usbd_transfer_stop(sc->sc_xfer[SMSC_BULK_DT_RD]); 1231239275Sgonzo} 1232239275Sgonzo 1233239275Sgonzo/** 1234239275Sgonzo * smsc_phy_init - Initialises the in-built SMSC phy 1235239275Sgonzo * @sc: driver soft context 1236239275Sgonzo * 1237239275Sgonzo * Resets the PHY part of the chip and then initialises it to default 1238239275Sgonzo * values. The 'link down' and 'auto-negotiation complete' interrupts 1239239275Sgonzo * from the PHY are also enabled, however we don't monitor the interrupt 1240239275Sgonzo * endpoints for the moment. 1241239275Sgonzo * 1242239275Sgonzo * RETURNS: 1243239275Sgonzo * Returns 0 on success or EIO if failed to reset the PHY. 1244239275Sgonzo */ 1245239275Sgonzostatic int 1246239275Sgonzosmsc_phy_init(struct smsc_softc *sc) 1247239275Sgonzo{ 1248239275Sgonzo int bmcr; 1249239275Sgonzo usb_ticks_t start_ticks; 1250239275Sgonzo const usb_ticks_t max_ticks = USB_MS_TO_TICKS(1000); 1251239275Sgonzo 1252239275Sgonzo SMSC_LOCK_ASSERT(sc, MA_OWNED); 1253239275Sgonzo 1254239275Sgonzo /* Reset phy and wait for reset to complete */ 1255239275Sgonzo smsc_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_BMCR, BMCR_RESET); 1256239275Sgonzo 1257239275Sgonzo start_ticks = ticks; 1258239275Sgonzo do { 1259239275Sgonzo uether_pause(&sc->sc_ue, hz / 100); 1260239275Sgonzo bmcr = smsc_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_BMCR); 1261239275Sgonzo } while ((bmcr & MII_BMCR) && ((ticks - start_ticks) < max_ticks)); 1262239275Sgonzo 1263239275Sgonzo if (((usb_ticks_t)(ticks - start_ticks)) >= max_ticks) { 1264239275Sgonzo smsc_err_printf(sc, "PHY reset timed-out"); 1265239275Sgonzo return (EIO); 1266239275Sgonzo } 1267239275Sgonzo 1268239275Sgonzo smsc_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_ANAR, 1269239275Sgonzo ANAR_10 | ANAR_10_FD | ANAR_TX | ANAR_TX_FD | /* all modes */ 1270239275Sgonzo ANAR_CSMA | 1271239275Sgonzo ANAR_FC | 1272239275Sgonzo ANAR_PAUSE_ASYM); 1273239275Sgonzo 1274239275Sgonzo /* Setup the phy to interrupt when the link goes down or autoneg completes */ 1275239275Sgonzo smsc_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno, SMSC_PHY_INTR_STAT); 1276239275Sgonzo smsc_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno, SMSC_PHY_INTR_MASK, 1277239275Sgonzo (SMSC_PHY_INTR_ANEG_COMP | SMSC_PHY_INTR_LINK_DOWN)); 1278239275Sgonzo 1279239275Sgonzo /* Restart auto-negotation */ 1280239275Sgonzo bmcr = smsc_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_BMCR); 1281239275Sgonzo bmcr |= BMCR_STARTNEG; 1282239275Sgonzo smsc_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_BMCR, bmcr); 1283239275Sgonzo 1284239275Sgonzo return (0); 1285239275Sgonzo} 1286239275Sgonzo 1287239275Sgonzo 1288239275Sgonzo/** 1289239275Sgonzo * smsc_chip_init - Initialises the chip after power on 1290239275Sgonzo * @sc: driver soft context 1291239275Sgonzo * 1292239275Sgonzo * This initialisation sequence is modelled on the procedure in the Linux 1293239275Sgonzo * driver. 1294240806Shselasky * 1295239275Sgonzo * RETURNS: 1296239275Sgonzo * Returns 0 on success or an error code on failure. 1297239275Sgonzo */ 1298239275Sgonzostatic int 1299239275Sgonzosmsc_chip_init(struct smsc_softc *sc) 1300239275Sgonzo{ 1301239275Sgonzo int err; 1302239275Sgonzo int locked; 1303239275Sgonzo uint32_t reg_val; 1304239275Sgonzo int burst_cap; 1305239275Sgonzo 1306239275Sgonzo locked = mtx_owned(&sc->sc_mtx); 1307240806Shselasky if (!locked) 1308239275Sgonzo SMSC_LOCK(sc); 1309239275Sgonzo 1310239275Sgonzo /* Enter H/W config mode */ 1311239275Sgonzo smsc_write_reg(sc, SMSC_HW_CFG, SMSC_HW_CFG_LRST); 1312239275Sgonzo 1313239275Sgonzo if ((err = smsc_wait_for_bits(sc, SMSC_HW_CFG, SMSC_HW_CFG_LRST)) != 0) { 1314239275Sgonzo smsc_warn_printf(sc, "timed-out waiting for reset to complete\n"); 1315239275Sgonzo goto init_failed; 1316239275Sgonzo } 1317239275Sgonzo 1318239275Sgonzo /* Reset the PHY */ 1319239275Sgonzo smsc_write_reg(sc, SMSC_PM_CTRL, SMSC_PM_CTRL_PHY_RST); 1320239275Sgonzo 1321239275Sgonzo if ((err = smsc_wait_for_bits(sc, SMSC_PM_CTRL, SMSC_PM_CTRL_PHY_RST) != 0)) { 1322239275Sgonzo smsc_warn_printf(sc, "timed-out waiting for phy reset to complete\n"); 1323239275Sgonzo goto init_failed; 1324239275Sgonzo } 1325239275Sgonzo 1326239275Sgonzo /* Set the mac address */ 1327239275Sgonzo if ((err = smsc_setmacaddress(sc, sc->sc_ue.ue_eaddr)) != 0) { 1328239275Sgonzo smsc_warn_printf(sc, "failed to set the MAC address\n"); 1329239275Sgonzo goto init_failed; 1330239275Sgonzo } 1331239275Sgonzo 1332239275Sgonzo /* Don't know what the HW_CFG_BIR bit is, but following the reset sequence 1333239275Sgonzo * as used in the Linux driver. 1334239275Sgonzo */ 1335239275Sgonzo if ((err = smsc_read_reg(sc, SMSC_HW_CFG, ®_val)) != 0) { 1336239275Sgonzo smsc_warn_printf(sc, "failed to read HW_CFG: %d\n", err); 1337239275Sgonzo goto init_failed; 1338239275Sgonzo } 1339239275Sgonzo reg_val |= SMSC_HW_CFG_BIR; 1340239275Sgonzo smsc_write_reg(sc, SMSC_HW_CFG, reg_val); 1341239275Sgonzo 1342239275Sgonzo /* There is a so called 'turbo mode' that the linux driver supports, it 1343239275Sgonzo * seems to allow you to jam multiple frames per Rx transaction. By default 1344239275Sgonzo * this driver supports that and therefore allows multiple frames per URB. 1345239275Sgonzo * 1346239275Sgonzo * The xfer buffer size needs to reflect this as well, therefore based on 1347239275Sgonzo * the calculations in the Linux driver the RX bufsize is set to 18944, 1348239275Sgonzo * bufsz = (16 * 1024 + 5 * 512) 1349239275Sgonzo * 1350239275Sgonzo * Burst capability is the number of URBs that can be in a burst of data/ 1351239275Sgonzo * ethernet frames. 1352239275Sgonzo */ 1353239275Sgonzo if (usbd_get_speed(sc->sc_ue.ue_udev) == USB_SPEED_HIGH) 1354239275Sgonzo burst_cap = 37; 1355239275Sgonzo else 1356239275Sgonzo burst_cap = 128; 1357239275Sgonzo 1358239275Sgonzo smsc_write_reg(sc, SMSC_BURST_CAP, burst_cap); 1359239275Sgonzo 1360239275Sgonzo /* Set the default bulk in delay (magic value from Linux driver) */ 1361239275Sgonzo smsc_write_reg(sc, SMSC_BULK_IN_DLY, 0x00002000); 1362239275Sgonzo 1363239275Sgonzo 1364239275Sgonzo 1365239275Sgonzo /* 1366239275Sgonzo * Initialise the RX interface 1367239275Sgonzo */ 1368239275Sgonzo if ((err = smsc_read_reg(sc, SMSC_HW_CFG, ®_val)) < 0) { 1369239275Sgonzo smsc_warn_printf(sc, "failed to read HW_CFG: (err = %d)\n", err); 1370239275Sgonzo goto init_failed; 1371239275Sgonzo } 1372239275Sgonzo 1373239275Sgonzo /* Adjust the packet offset in the buffer (designed to try and align IP 1374239275Sgonzo * header on 4 byte boundary) 1375239275Sgonzo */ 1376239275Sgonzo reg_val &= ~SMSC_HW_CFG_RXDOFF; 1377239275Sgonzo reg_val |= (ETHER_ALIGN << 9) & SMSC_HW_CFG_RXDOFF; 1378239275Sgonzo 1379239275Sgonzo /* The following setings are used for 'turbo mode', a.k.a multiple frames 1380239275Sgonzo * per Rx transaction (again info taken form Linux driver). 1381239275Sgonzo */ 1382239275Sgonzo reg_val |= (SMSC_HW_CFG_MEF | SMSC_HW_CFG_BCE); 1383239275Sgonzo 1384239275Sgonzo smsc_write_reg(sc, SMSC_HW_CFG, reg_val); 1385239275Sgonzo 1386239275Sgonzo /* Clear the status register ? */ 1387239275Sgonzo smsc_write_reg(sc, SMSC_INTR_STATUS, 0xffffffff); 1388239275Sgonzo 1389239275Sgonzo /* Read and display the revision register */ 1390239275Sgonzo if ((err = smsc_read_reg(sc, SMSC_ID_REV, &sc->sc_rev_id)) < 0) { 1391239275Sgonzo smsc_warn_printf(sc, "failed to read ID_REV (err = %d)\n", err); 1392239275Sgonzo goto init_failed; 1393239275Sgonzo } 1394239275Sgonzo 1395239275Sgonzo device_printf(sc->sc_ue.ue_dev, "chip 0x%04lx, rev. %04lx\n", 1396239275Sgonzo (sc->sc_rev_id & SMSC_ID_REV_CHIP_ID_MASK) >> 16, 1397239275Sgonzo (sc->sc_rev_id & SMSC_ID_REV_CHIP_REV_MASK)); 1398239275Sgonzo 1399239275Sgonzo /* GPIO/LED setup */ 1400239275Sgonzo reg_val = SMSC_LED_GPIO_CFG_SPD_LED | SMSC_LED_GPIO_CFG_LNK_LED | 1401239275Sgonzo SMSC_LED_GPIO_CFG_FDX_LED; 1402239275Sgonzo smsc_write_reg(sc, SMSC_LED_GPIO_CFG, reg_val); 1403239275Sgonzo 1404239275Sgonzo /* 1405239275Sgonzo * Initialise the TX interface 1406239275Sgonzo */ 1407239275Sgonzo smsc_write_reg(sc, SMSC_FLOW, 0); 1408239275Sgonzo 1409239275Sgonzo smsc_write_reg(sc, SMSC_AFC_CFG, AFC_CFG_DEFAULT); 1410239275Sgonzo 1411239275Sgonzo /* Read the current MAC configuration */ 1412239275Sgonzo if ((err = smsc_read_reg(sc, SMSC_MAC_CSR, &sc->sc_mac_csr)) < 0) { 1413239275Sgonzo smsc_warn_printf(sc, "failed to read MAC_CSR (err=%d)\n", err); 1414239275Sgonzo goto init_failed; 1415239275Sgonzo } 1416239275Sgonzo 1417239275Sgonzo /* Vlan */ 1418239275Sgonzo smsc_write_reg(sc, SMSC_VLAN1, (uint32_t)ETHERTYPE_VLAN); 1419239275Sgonzo 1420239275Sgonzo /* 1421239275Sgonzo * Initialise the PHY 1422239275Sgonzo */ 1423239275Sgonzo if ((err = smsc_phy_init(sc)) != 0) 1424239275Sgonzo goto init_failed; 1425239275Sgonzo 1426239275Sgonzo 1427239275Sgonzo /* 1428239275Sgonzo * Start TX 1429239275Sgonzo */ 1430239275Sgonzo sc->sc_mac_csr |= SMSC_MAC_CSR_TXEN; 1431239275Sgonzo smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr); 1432239275Sgonzo smsc_write_reg(sc, SMSC_TX_CFG, SMSC_TX_CFG_ON); 1433239275Sgonzo 1434239275Sgonzo /* 1435239275Sgonzo * Start RX 1436239275Sgonzo */ 1437239275Sgonzo sc->sc_mac_csr |= SMSC_MAC_CSR_RXEN; 1438239275Sgonzo smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr); 1439239275Sgonzo 1440239275Sgonzo if (!locked) 1441239275Sgonzo SMSC_UNLOCK(sc); 1442239275Sgonzo 1443239275Sgonzo return (0); 1444239275Sgonzo 1445239275Sgonzoinit_failed: 1446239275Sgonzo if (!locked) 1447239275Sgonzo SMSC_UNLOCK(sc); 1448239275Sgonzo 1449239275Sgonzo smsc_err_printf(sc, "smsc_chip_init failed (err=%d)\n", err); 1450239275Sgonzo return (err); 1451239275Sgonzo} 1452239275Sgonzo 1453239275Sgonzo 1454239275Sgonzo/** 1455239275Sgonzo * smsc_ioctl - ioctl function for the device 1456239275Sgonzo * @ifp: interface pointer 1457239275Sgonzo * @cmd: the ioctl command 1458239275Sgonzo * @data: data passed in the ioctl call, typically a pointer to struct ifreq. 1459239275Sgonzo * 1460239275Sgonzo * The ioctl routine is overridden to detect change requests for the H/W 1461239275Sgonzo * checksum capabilities. 1462239275Sgonzo * 1463239275Sgonzo * RETURNS: 1464239275Sgonzo * 0 on success and an error code on failure. 1465239275Sgonzo */ 1466239275Sgonzostatic int 1467239275Sgonzosmsc_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1468239275Sgonzo{ 1469239275Sgonzo struct usb_ether *ue = ifp->if_softc; 1470239275Sgonzo struct smsc_softc *sc; 1471239275Sgonzo struct ifreq *ifr; 1472239275Sgonzo int rc; 1473239275Sgonzo int mask; 1474239275Sgonzo int reinit; 1475239275Sgonzo 1476239275Sgonzo if (cmd == SIOCSIFCAP) { 1477239275Sgonzo 1478239275Sgonzo sc = uether_getsc(ue); 1479239275Sgonzo ifr = (struct ifreq *)data; 1480239275Sgonzo 1481239275Sgonzo SMSC_LOCK(sc); 1482239275Sgonzo 1483239275Sgonzo rc = 0; 1484239275Sgonzo reinit = 0; 1485239275Sgonzo 1486239275Sgonzo mask = ifr->ifr_reqcap ^ ifp->if_capenable; 1487239275Sgonzo 1488239275Sgonzo /* Modify the RX CSUM enable bits */ 1489239275Sgonzo if ((mask & IFCAP_RXCSUM) != 0 && 1490239275Sgonzo (ifp->if_capabilities & IFCAP_RXCSUM) != 0) { 1491239275Sgonzo ifp->if_capenable ^= IFCAP_RXCSUM; 1492239275Sgonzo 1493239275Sgonzo if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1494239275Sgonzo ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1495239275Sgonzo reinit = 1; 1496239275Sgonzo } 1497239275Sgonzo } 1498239275Sgonzo 1499239275Sgonzo SMSC_UNLOCK(sc); 1500239275Sgonzo if (reinit) 1501239275Sgonzo#if __FreeBSD_version > 1000000 1502239275Sgonzo uether_init(ue); 1503239275Sgonzo#else 1504239275Sgonzo ifp->if_init(ue); 1505239275Sgonzo#endif 1506239275Sgonzo 1507239275Sgonzo } else { 1508239275Sgonzo rc = uether_ioctl(ifp, cmd, data); 1509239275Sgonzo } 1510239275Sgonzo 1511239275Sgonzo return (rc); 1512239275Sgonzo} 1513239275Sgonzo 1514239275Sgonzo 1515239275Sgonzo/** 1516239275Sgonzo * smsc_attach_post - Called after the driver attached to the USB interface 1517239275Sgonzo * @ue: the USB ethernet device 1518239275Sgonzo * 1519239275Sgonzo * This is where the chip is intialised for the first time. This is different 1520239275Sgonzo * from the smsc_init() function in that that one is designed to setup the 1521239275Sgonzo * H/W to match the UE settings and can be called after a reset. 1522239275Sgonzo * 1523239275Sgonzo * 1524239275Sgonzo */ 1525239275Sgonzostatic void 1526239275Sgonzosmsc_attach_post(struct usb_ether *ue) 1527239275Sgonzo{ 1528239275Sgonzo struct smsc_softc *sc = uether_getsc(ue); 1529239275Sgonzo uint32_t mac_h, mac_l; 1530239275Sgonzo int err; 1531239275Sgonzo 1532239275Sgonzo smsc_dbg_printf(sc, "smsc_attach_post\n"); 1533239275Sgonzo 1534239275Sgonzo /* Setup some of the basics */ 1535239275Sgonzo sc->sc_phyno = 1; 1536239275Sgonzo 1537239275Sgonzo 1538239275Sgonzo /* Attempt to get the mac address, if an EEPROM is not attached this 1539239275Sgonzo * will just return FF:FF:FF:FF:FF:FF, so in such cases we invent a MAC 1540239275Sgonzo * address based on urandom. 1541239275Sgonzo */ 1542239275Sgonzo memset(sc->sc_ue.ue_eaddr, 0xff, ETHER_ADDR_LEN); 1543239275Sgonzo 1544239275Sgonzo /* Check if there is already a MAC address in the register */ 1545239275Sgonzo if ((smsc_read_reg(sc, SMSC_MAC_ADDRL, &mac_l) == 0) && 1546239275Sgonzo (smsc_read_reg(sc, SMSC_MAC_ADDRH, &mac_h) == 0)) { 1547239275Sgonzo sc->sc_ue.ue_eaddr[5] = (uint8_t)((mac_h >> 8) & 0xff); 1548239275Sgonzo sc->sc_ue.ue_eaddr[4] = (uint8_t)((mac_h) & 0xff); 1549239275Sgonzo sc->sc_ue.ue_eaddr[3] = (uint8_t)((mac_l >> 24) & 0xff); 1550239275Sgonzo sc->sc_ue.ue_eaddr[2] = (uint8_t)((mac_l >> 16) & 0xff); 1551239275Sgonzo sc->sc_ue.ue_eaddr[1] = (uint8_t)((mac_l >> 8) & 0xff); 1552239275Sgonzo sc->sc_ue.ue_eaddr[0] = (uint8_t)((mac_l) & 0xff); 1553239275Sgonzo } 1554239275Sgonzo 1555239275Sgonzo /* MAC address is not set so try to read from EEPROM, if that fails generate 1556239275Sgonzo * a random MAC address. 1557239275Sgonzo */ 1558243421Sgonzo if (!ETHER_IS_VALID(sc->sc_ue.ue_eaddr)) { 1559273546Sloos 1560273546Sloos err = smsc_eeprom_read(sc, 0x01, sc->sc_ue.ue_eaddr, ETHER_ADDR_LEN); 1561273546Sloos if ((err != 0) || (!ETHER_IS_VALID(sc->sc_ue.ue_eaddr))) { 1562273546Sloos 1563273546Sloos read_random(sc->sc_ue.ue_eaddr, ETHER_ADDR_LEN); 1564273546Sloos sc->sc_ue.ue_eaddr[0] &= ~0x01; /* unicast */ 1565273546Sloos sc->sc_ue.ue_eaddr[0] |= 0x02; /* locally administered */ 1566273546Sloos } 1567273546Sloos } 1568273546Sloos 1569273546Sloos /* Initialise the chip for the first time */ 1570273546Sloos smsc_chip_init(sc); 1571273546Sloos} 1572273546Sloos 1573273546Sloos 1574273546Sloos/** 1575273546Sloos * smsc_attach_post_sub - Called after the driver attached to the USB interface 1576273546Sloos * @ue: the USB ethernet device 1577243421Sgonzo * 1578273546Sloos * Most of this is boilerplate code and copied from the base USB ethernet 1579273546Sloos * driver. It has been overriden so that we can indicate to the system that 1580273546Sloos * the chip supports H/W checksumming. 1581243421Sgonzo * 1582243421Sgonzo * RETURNS: 1583243421Sgonzo * Returns 0 on success or a negative error code. 1584243421Sgonzo */ 1585273546Sloos#if __FreeBSD_version > 1000000 1586243421Sgonzostatic int 1587239275Sgonzosmsc_attach_post_sub(struct usb_ether *ue) 1588243421Sgonzo{ 1589273546Sloos struct smsc_softc *sc; 1590273546Sloos struct ifnet *ifp; 1591243421Sgonzo int error; 1592273546Sloos 1593273546Sloos sc = uether_getsc(ue); 1594273546Sloos ifp = ue->ue_ifp; 1595273546Sloos ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 1596243421Sgonzo ifp->if_start = uether_start; 1597273546Sloos ifp->if_ioctl = smsc_ioctl; 1598273546Sloos ifp->if_init = uether_init; 1599273546Sloos IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 1600243421Sgonzo ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 1601243421Sgonzo IFQ_SET_READY(&ifp->if_snd); 1602273546Sloos 1603273546Sloos /* The chip supports TCP/UDP checksum offloading on TX and RX paths, however 1604273546Sloos * currently only RX checksum is supported in the driver (see top of file). 1605243421Sgonzo */ 1606273546Sloos ifp->if_capabilities |= IFCAP_RXCSUM; 1607273546Sloos ifp->if_hwassist = 0; 1608273546Sloos 1609243421Sgonzo /* TX checksuming is disabled (for now?) 1610243421Sgonzo ifp->if_capabilities |= IFCAP_TXCSUM; 1611243421Sgonzo ifp->if_capenable |= IFCAP_TXCSUM; 1612243421Sgonzo ifp->if_hwassist = CSUM_TCP | CSUM_UDP; 1613243421Sgonzo */ 1614243421Sgonzo 1615243421Sgonzo ifp->if_capenable = ifp->if_capabilities; 1616239275Sgonzo 1617239275Sgonzo mtx_lock(&Giant); 1618239275Sgonzo error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp, 1619239275Sgonzo uether_ifmedia_upd, ue->ue_methods->ue_mii_sts, 1620239275Sgonzo BMSR_DEFCAPMASK, sc->sc_phyno, MII_OFFSET_ANY, 0); 1621239275Sgonzo mtx_unlock(&Giant); 1622239275Sgonzo 1623239275Sgonzo return (error); 1624239275Sgonzo} 1625239275Sgonzo#endif /* __FreeBSD_version > 1000000 */ 1626239275Sgonzo 1627239275Sgonzo 1628239275Sgonzo/** 1629239275Sgonzo * smsc_probe - Probe the interface. 1630239275Sgonzo * @dev: smsc device handle 1631239275Sgonzo * 1632239275Sgonzo * Checks if the device is a match for this driver. 1633239275Sgonzo * 1634239275Sgonzo * RETURNS: 1635239275Sgonzo * Returns 0 on success or an error code on failure. 1636239275Sgonzo */ 1637239275Sgonzostatic int 1638239275Sgonzosmsc_probe(device_t dev) 1639239275Sgonzo{ 1640239275Sgonzo struct usb_attach_arg *uaa = device_get_ivars(dev); 1641239275Sgonzo 1642239275Sgonzo if (uaa->usb_mode != USB_MODE_HOST) 1643239275Sgonzo return (ENXIO); 1644239275Sgonzo if (uaa->info.bConfigIndex != SMSC_CONFIG_INDEX) 1645239275Sgonzo return (ENXIO); 1646239275Sgonzo if (uaa->info.bIfaceIndex != SMSC_IFACE_IDX) 1647239275Sgonzo return (ENXIO); 1648239275Sgonzo 1649239275Sgonzo return (usbd_lookup_id_by_uaa(smsc_devs, sizeof(smsc_devs), uaa)); 1650239275Sgonzo} 1651239275Sgonzo 1652239275Sgonzo 1653239275Sgonzo/** 1654239275Sgonzo * smsc_attach - Attach the interface. 1655239275Sgonzo * @dev: smsc device handle 1656239275Sgonzo * 1657239275Sgonzo * Allocate softc structures, do ifmedia setup and ethernet/BPF attach. 1658239275Sgonzo * 1659239275Sgonzo * RETURNS: 1660239275Sgonzo * Returns 0 on success or a negative error code. 1661239275Sgonzo */ 1662243421Sgonzostatic int 1663243421Sgonzosmsc_attach(device_t dev) 1664243421Sgonzo{ 1665243421Sgonzo struct usb_attach_arg *uaa = device_get_ivars(dev); 1666239275Sgonzo struct smsc_softc *sc = device_get_softc(dev); 1667239275Sgonzo struct usb_ether *ue = &sc->sc_ue; 1668239275Sgonzo uint8_t iface_index; 1669239275Sgonzo int err; 1670239275Sgonzo 1671239275Sgonzo sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 1672239275Sgonzo 1673239275Sgonzo device_set_usb_desc(dev); 1674239275Sgonzo 1675239275Sgonzo mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 1676239275Sgonzo 1677239275Sgonzo /* Setup the endpoints for the SMSC LAN95xx device(s) */ 1678239275Sgonzo iface_index = SMSC_IFACE_IDX; 1679239275Sgonzo err = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, 1680239275Sgonzo smsc_config, SMSC_N_TRANSFER, sc, &sc->sc_mtx); 1681239275Sgonzo if (err) { 1682239275Sgonzo device_printf(dev, "error: allocating USB transfers failed\n"); 1683239275Sgonzo goto detach; 1684239275Sgonzo } 1685239275Sgonzo 1686239275Sgonzo ue->ue_sc = sc; 1687239275Sgonzo ue->ue_dev = dev; 1688239275Sgonzo ue->ue_udev = uaa->device; 1689239275Sgonzo ue->ue_mtx = &sc->sc_mtx; 1690239275Sgonzo ue->ue_methods = &smsc_ue_methods; 1691239275Sgonzo 1692239275Sgonzo err = uether_ifattach(ue); 1693239275Sgonzo if (err) { 1694239275Sgonzo device_printf(dev, "error: could not attach interface\n"); 1695239275Sgonzo goto detach; 1696239275Sgonzo } 1697239275Sgonzo return (0); /* success */ 1698239275Sgonzo 1699239275Sgonzodetach: 1700239275Sgonzo smsc_detach(dev); 1701239275Sgonzo return (ENXIO); /* failure */ 1702239275Sgonzo} 1703239275Sgonzo 1704239275Sgonzo/** 1705239275Sgonzo * smsc_detach - Detach the interface. 1706239275Sgonzo * @dev: smsc device handle 1707239275Sgonzo * 1708239275Sgonzo * RETURNS: 1709239275Sgonzo * Returns 0. 1710239275Sgonzo */ 1711239275Sgonzostatic int 1712239275Sgonzosmsc_detach(device_t dev) 1713239275Sgonzo{ 1714239275Sgonzo struct smsc_softc *sc = device_get_softc(dev); 1715239275Sgonzo struct usb_ether *ue = &sc->sc_ue; 1716239275Sgonzo 1717239275Sgonzo usbd_transfer_unsetup(sc->sc_xfer, SMSC_N_TRANSFER); 1718239275Sgonzo uether_ifdetach(ue); 1719239275Sgonzo mtx_destroy(&sc->sc_mtx); 1720239275Sgonzo 1721239275Sgonzo return (0); 1722239275Sgonzo} 1723239275Sgonzo 1724239275Sgonzostatic device_method_t smsc_methods[] = { 1725239275Sgonzo /* Device interface */ 1726239275Sgonzo DEVMETHOD(device_probe, smsc_probe), 1727239275Sgonzo DEVMETHOD(device_attach, smsc_attach), 1728239275Sgonzo DEVMETHOD(device_detach, smsc_detach), 1729239275Sgonzo 1730239275Sgonzo /* bus interface */ 1731239275Sgonzo DEVMETHOD(bus_print_child, bus_generic_print_child), 1732239275Sgonzo DEVMETHOD(bus_driver_added, bus_generic_driver_added), 1733239275Sgonzo 1734239275Sgonzo /* MII interface */ 1735239275Sgonzo DEVMETHOD(miibus_readreg, smsc_miibus_readreg), 1736239275Sgonzo DEVMETHOD(miibus_writereg, smsc_miibus_writereg), 1737239275Sgonzo DEVMETHOD(miibus_statchg, smsc_miibus_statchg), 1738239275Sgonzo 1739239275Sgonzo {0, 0} 1740239275Sgonzo}; 1741239275Sgonzo 1742239275Sgonzostatic driver_t smsc_driver = { 1743239275Sgonzo .name = "smsc", 1744239275Sgonzo .methods = smsc_methods, 1745239275Sgonzo .size = sizeof(struct smsc_softc), 1746239275Sgonzo}; 1747239275Sgonzo 1748239275Sgonzostatic devclass_t smsc_devclass; 1749239275Sgonzo 1750239275SgonzoDRIVER_MODULE(smsc, uhub, smsc_driver, smsc_devclass, NULL, 0); 1751239275SgonzoDRIVER_MODULE(miibus, smsc, miibus_driver, miibus_devclass, 0, 0); 1752239275SgonzoMODULE_DEPEND(smsc, uether, 1, 1, 1); 1753239275SgonzoMODULE_DEPEND(smsc, usb, 1, 1, 1); 1754239275SgonzoMODULE_DEPEND(smsc, ether, 1, 1, 1); 1755239275SgonzoMODULE_DEPEND(smsc, miibus, 1, 1, 1); 1756239275SgonzoMODULE_VERSION(smsc, 1); 1757239275Sgonzo