--- /dev/null
+/* libmii.c: MII diagnostic and setup library.
+
+ Copyright 1997-2003 by Donald Becker.
+ This version released under the Gnu General Public License,
+ incorporated herein by reference.
+ This source code may be distributed without modification using the
+ existing notice. Any modification to this source code must include a
+ full notice as described in the GPL
+ Contact the author for use under other terms.
+
+ The author may be reached as becker@scyld.com, or C/O
+ Scyld Computing Corporation
+ 914 Bay Ridge Road, Suite 220
+ Annapolis MD 21403
+
+ References
+ http://www.scyld.com/expert/NWay.html
+ http://www.national.com/pf/DP/DP83840A.html
+*/
+
+static const char version_msg[] =
+"libmii.c:v2.11 2/28/2005 Donald Becker (becker@scyld.com)\n"
+" http://www.scyld.com/diag/index.html\n";
+
+/* This library exports the following functions:
+ IOADDR: A token passed to the mdio_read() function.
+ PHY_ID: The MII transceiver address, passed uninterpreted to mdio_read().
+*/
+void show_mii_details(long ioaddr, int phy_id);
+int monitor_mii(long ioaddr, int phy_id);
+
+/* This library expects to be able to call the following functions: */
+extern int mdio_read(long ioaddr, int phy_id, int mii_reg_num);
+
+#include <unistd.h>
+#include <stdio.h>
+#include <time.h>
+#include <sys/time.h>
+
+#include <sys/types.h>
+typedef u_int32_t u32;
+typedef u_int16_t u16;
+typedef u_int8_t u8;
+
+static const char *media_names[] = {
+ "10baseT", "10baseT-FD", "100baseTx", "100baseTx-FD", "100baseT4",
+ "Flow-control", 0,
+};
+
+static void ns83843(long ioaddr, int phy_id);
+static void qs6612(long ioaddr, int phy_id);
+static void smsc83c180(long ioaddr, int phy_id);
+static void tdk78q2120(long ioaddr, int phy_id);
+static void davicom_dm9101(long ioaddr, int phy_id);
+static void intel_i553(long ioaddr, int phy_id);
+static void enablesemi(long ioaddr, int phy_id);
+static void amd_pna(long ioaddr, int phy_id);
+static void amd_tx(long ioaddr, int phy_id);
+static void admtek(long ioaddr, int phy_id);
+static void lu3x31(long ioaddr, int phy_id);
+static void myson981(long ioaddr, int phy_id);
+static void via_tahoe(long ioaddr, int phy_id);
+static void via_vt6103(long ioaddr, int phy_id);
+static void via_vt6105(long ioaddr, int phy_id);
+static void intel(long ioaddr, int phy_id);
+
+struct mii_partnum {
+ const char *vendor; /* Vendor name. */
+ u16 phy_id0; /* Vendor ID (alternate ver. of ieee_oui[]) */
+ u16 phy_id1; /* Vendor ID (alternate ver. of ieee_oui[]) */
+ unsigned char ieee_oui[3]; /* IEEE-assigned organizationally unique ID */
+ char flags;
+ void (*(func))(long xcvr_if, int phy_id);/* Function to emit more info. */
+} static oui_map[] = {
+ {"Unknown transceiver type", 0x0000, 0x0000, {0,}, 0, NULL,},
+ {"National Semiconductor 83840A", 0x2000, 0x5c01, {0,}, 0, NULL,},
+ {"National Semiconductor 83843", 0x2000, 0x5c10, {0,}, 0, ns83843, },
+ {"Level One LXT970", 0x7810, 0x0000, {0,}, 0, NULL, },
+ {"Level One LXT971", 0x7810, 0x0001, {0,}, 0, NULL, },
+ {"Level One LXT971A",0x7810, 0x0003, {0,}, 0, NULL, },
+ {"Level One (unknown type)", 0, 0, {0x1e,0x04,0x00}, 0, NULL, },
+ {"Davicom DM9101", 0x0181, 0xB800, {0,}, 0, davicom_dm9101, },
+ {"Davicom (unknown type)", 0, 0, {0x00, 0x60, 0x6e}, 0, davicom_dm9101, },
+ {"Quality Semiconductor QS6612", 0x0181, 0x4410, {0,}, 0, qs6612},
+ {"Quality Semiconductor (unknown type)", 0,0, {0x00, 0x60, 0x51}, 0, NULL},
+ {"SMSC 83c180", 0x0282, 0x1C51, {0}, 0, smsc83c180, },
+ {"TDK Semi 78Q2120 rev. 2", 0x0300, 0xE542, {0,}, 0, tdk78q2120, },
+ {"TDK Semi 78Q2120 rev. 3", 0x0300, 0xE543, {0,}, 0, tdk78q2120, },
+ {"TDK Semi 78Q2120 rev. 11", 0x0300, 0xE54B, {0,}, 0, tdk78q2120, },
+ {"TDK transceiver (unknown type)", 0,0, {0x00, 0xc0, 0x39}, 0, tdk78q2120},
+ {"Intel (unknown type)", 0,0, {0x00, 0xf8, 0x00}, 0, intel_i553},
+ {"Enable Semiconductor EL40-331", 0x0043, 0x7411, {0,}, 0, enablesemi},
+ {"AMD 79c901A.1 HomePNA", 0x0000, 0x6B91, {0,}, 0, amd_pna},
+ {"AMD 79c901A.2 HomePNA", 0x0000, 0x6B92, {0,}, 0, amd_pna},
+ {"AMD 79c901A.3 HomePNA", 0x0000, 0x6B93, {0,}, 0, amd_pna},
+ {"AMD 79c901A.3 10baseT", 0x0000, 0x6B71, {0,}, 0, amd_tx},
+ {"AdHoc Technology AH101LF", 0x0022, 0x561B, {0,}, 0, tdk78q2120},
+ {"Altimata Communications AC101LF", 0x0022, 0x5523, {0,}, 0, tdk78q2120},
+ {"Altimata Comm (unknown type)", 0, 0, {0x00,0x10,0xA9}, 0, tdk78q2120},
+ {"ASIX (unknown type)", 0, 0, {0x00,0xC0,0xB4}, 0, tdk78q2120},
+ {"ADMtek AN983 Comet", 0x0022, 0x5410, {0,}, 0, admtek},
+ {"ADMtek AN985 Comet", 0x0022, 0x5513, {0,}, 0, admtek},
+ {"ADMtek (unknown type)", 0, 0, {0x00,0xe0,0x92}, 0, admtek},
+ {"Lucent LU6612", 0x0180, 0x7641, {0,}, 0, qs6612},
+ {"Lucent LU3X31", 0x0043, 0x7411, {0,}, 0, lu3x31},
+ {"LSI Logic (Seeq) 80225", 0, 0, {0x00,0xA0,0x7D}, 0, NULL},
+ {"Myson MTD981", 0x0302, 0xD000, {0,}, 0, myson981},
+ {"Myson (unknown type)", 0, 0, {0x00,0xC0,0xB4,}, 0, myson981},
+ {"Alta/Kendin Sundance", 0x0022, 0x1720, {0,}, 0, NULL},
+ {"Alta/Kendin Sundance", 0, 0, {0x00,0x08,0x85}, 0, NULL},
+ {"VIA Tahoe VT6103", 0x0101, 0x8f20, {0,}, 0, via_vt6103},
+ {"VIA Tahoe VT6104", 0x0101, 0x8f30, {0,}, 0, via_tahoe},
+ {"VIA Rhine VT6105", 0x0101, 0x8f22, {0,}, 0, via_vt6105},
+ {"Intel 82557 series", 0x02a8, 0x0150, {0,}, 0, intel},
+ {"Intel 82555 rev 1", 0x02a8, 0x0151, {0,}, 0, intel},
+ {"Intel 82559 transceiver", 0x02a8, 0x0154, {0,}, 0, intel},
+ {"Intel 82555 series transceiver", 0,0, {0x00,0xaa,0x00}, 0, intel},
+ {0, },
+};
+
+static u16 mii_val[32];
+
+void show_mii_details(long ioaddr, int phy_id)
+{
+ int mii_reg, i, vendor = 0;
+ u16 bmcr, bmsr, new_bmsr;
+
+ /* This may not be omitted from the output. */
+ printf("%s", version_msg);
+ printf(" MII PHY #%d transceiver registers:", phy_id);
+ for (mii_reg = 0; mii_reg < 32; mii_reg++) {
+ mii_val[mii_reg] = mdio_read(ioaddr, phy_id, mii_reg);
+ printf("%s %4.4x", (mii_reg % 8) == 0 ? "\n " : "",
+ mii_val[mii_reg]);
+ }
+ printf(".\n");
+ if (mii_val[0] == 0xffff) {
+ printf(" No MII transceiver present!.\n");
+ return;
+ }
+ bmcr = mii_val[0];
+ bmsr = mii_val[1];
+ printf(" Basic mode control register 0x%4.4x:", bmcr);
+ if (bmcr & 0x1000)
+ printf(" Auto-negotiation enabled.\n");
+ else
+ printf(" Auto-negotiation disabled!\n"
+ " Speed fixed at 10%s mbps, %s-duplex.\n",
+ bmcr & 0x2000 ? "0" : "",
+ bmcr & 0x0100 ? "full":"half");
+ if (bmcr & 0x8000)
+ printf(" Transceiver currently being reset!\n");
+ if (bmcr & 0x4000)
+ printf(" Transceiver in loopback mode!\n");
+ if (bmcr & 0x0800)
+ printf(" Transceiver powered down!\n");
+ if (bmcr & 0x0400)
+ printf(" Transceiver isolated from the MII!\n");
+ if (bmcr & 0x0200)
+ printf(" Restarted auto-negotiation in progress!\n");
+ if (bmcr & 0x0080)
+ printf(" Internal Collision-Test enabled!\n");
+
+ new_bmsr = mdio_read(ioaddr, phy_id, 1);
+ printf(" Basic mode status register 0x%4.4x ... %4.4x.\n"
+ " Link status: %sestablished.\n"
+ " Capable of ",
+ bmsr, new_bmsr,
+ bmsr & 0x0004 ? "" :
+ (new_bmsr & 0x0004) ? "previously broken, but now re" : "not ");
+ if (bmsr & 0xF800) {
+ for (i = 15; i >= 11; i--)
+ if (bmsr & (1<<i))
+ printf(" %s", media_names[i-11]);
+ } else
+ printf("<Warning! No media capabilities>");
+
+ printf(".\n"
+ " %s to perform Auto-negotiation, negotiation %scomplete.\n",
+ bmsr & 0x0008 ? "Able" : "Unable",
+ bmsr & 0x0020 ? "" : "not ");
+
+ if (bmsr & 0x0010)
+ printf(" Remote fault detected!\n");
+ if (bmsr & 0x0002)
+ printf(" *** Link Jabber! ***\n");
+
+ if (mii_val[2] ^ mii_val[3]) { /* Eliminate 0x0000 and 0xffff IDs. */
+ unsigned char oui_0 = mii_val[2] >> 10;
+ unsigned char oui_1 = mii_val[2] >> 2;
+ unsigned char oui_2 = (mii_val[2] << 6) | (mii_val[3] >> 10);
+
+ printf(" Vendor ID is %2.2x:%2.2x:%2.2x:--:--:--, model %d rev. %d.\n",
+ oui_0, oui_1, oui_2,
+ ((mii_val[3] >> 4) & 0x3f), mii_val[3] & 0x0f);
+ for ( i = 0; oui_map[i].vendor; i++)
+ /* We match either the Phy ID or the IEEE OUI. */
+ if ((oui_map[i].phy_id0 == mii_val[2] &&
+ oui_map[i].phy_id1 == mii_val[3]) ||
+ (oui_map[i].ieee_oui[0] == oui_0 &&
+ oui_map[i].ieee_oui[1] == oui_1 &&
+ oui_map[i].ieee_oui[2] == oui_2)) {
+ printf(" Vendor/Part: %s.\n", oui_map[i].vendor);
+ vendor = i;
+ break;
+ }
+ if (oui_map[i].vendor == NULL)
+ printf(" No specific information is known about this transceiver"
+ " type.\n");
+ } else
+ printf(" This transceiver has no vendor identification.\n");
+
+ {
+ int nway_advert = mii_val[4];
+ int lkpar = mii_val[5];
+ printf(" I'm advertising %4.4x:", nway_advert);
+ for (i = 10; i >= 5; i--)
+ if (nway_advert & (1<<i))
+ printf(" %s", media_names[i-5]);
+ printf("\n Advertising %sadditional info pages.\n",
+ nway_advert & 0x8000 ? "" : "no ");
+ if ((nway_advert & 31) == 1)
+ printf(" IEEE 802.3 CSMA/CD protocol.\n");
+ else
+ printf(" Using an unknown (non 802.3) encapsulation.\n");
+ printf(" Link partner capability is %4.4x:",
+ lkpar);
+ for (i = 10; i >= 5; i--)
+ if (lkpar & (1<<i))
+ printf(" %s", media_names[i-5]);
+ printf(".\n Negotiation %s.\n",
+ lkpar & 0x4000 ? " completed" : "did not complete");
+ }
+ if (oui_map[vendor].func)
+ oui_map[vendor].func(ioaddr, phy_id);
+
+}
+
+int monitor_mii(long ioaddr, int phy_id)
+{
+ int i, last_event = 0;
+ unsigned short new_1, baseline_1 = mdio_read(ioaddr, phy_id, 1);
+ struct timeval tv, sleepval;
+ time_t cur_time;
+ char timebuf[12];
+
+ if (baseline_1 == 0xffff) {
+ fprintf(stderr, "No MII transceiver present to monitor.\n");
+ return -1;
+ }
+
+ gettimeofday(&tv, NULL);
+ cur_time = tv.tv_sec;
+ strftime(timebuf, sizeof(timebuf), "%H:%M:%S", localtime(&cur_time));
+
+ printf("Monitoring the MII transceiver status.\n"
+ "%s.%03d Baseline value of MII BMSR (basic mode status register)"
+ " is %4.4x.\n", timebuf, (int)tv.tv_usec/1000, baseline_1);
+ while (1) {
+ new_1 = mdio_read(ioaddr, phy_id, 1);
+ if (new_1 == 0xffff) {
+ fprintf(stderr, "The MII transceiver is no longer accessable!\n");
+ return -1;
+ }
+ if (new_1 != baseline_1) {
+ gettimeofday(&tv, NULL);
+ cur_time = tv.tv_sec;
+ strftime(timebuf, sizeof(timebuf), "%H:%M:%S",
+ localtime(&cur_time));
+ printf("%s.%03d MII BMSR now %4.4x: %4s link, NWay %s, "
+ "%3sJabber%s (%4.4x).\n",
+ timebuf, (int)tv.tv_usec/1000, new_1,
+ new_1 & 0x04 ? "Good" : "no",
+ new_1 & 0x20 ? "done" : "busy",
+ new_1 & 0x02 ? "" : "No ",
+ new_1 & 0x10 ? ", remote fault" : "",
+ mdio_read(ioaddr, phy_id, 5)
+ );
+ if (!(baseline_1 & 0x20) && (new_1 & 0x20)) {
+ int lkpar = mdio_read(ioaddr, phy_id, 5);
+ printf(" New link partner capability is %4.4x %4.4x:",
+ lkpar, mdio_read(ioaddr, phy_id, 6));
+ switch (lkpar) {
+ case 0x45e1: printf(" 10/100 switch w/ flow control"); break;
+ case 0x41e1: printf(" 10/100 HD+FD switch"); break;
+ case 0x40a1: printf(" 10/100 bridged repeater"); break;
+ case 0x4081: printf(" 100baseTx repeater w/autonegotation");
+ break;
+ case 0x0081: printf(" 100baseTx (no autonegotation)"); break;
+ case 0x4021: printf(" 10baseT repeater w/autonegotation");
+ break;
+ case 0x0021: printf(" 10baseT (no autonegotation)"); break;
+ default:
+ for (i = 9; i >= 5; i--)
+ if (lkpar & (1<<i))
+ printf(" %s", media_names[i-5]);
+ }
+ printf(".\n");
+ }
+ fflush(stdout);
+ baseline_1 = new_1;
+ last_event = 0;
+ }
+ sleepval.tv_sec = 0;
+ sleepval.tv_usec = last_event++ > 30 ? 200000 : 1000;
+ select(0, 0, 0, 0, &sleepval); /* Or just sleep(1); */
+ }
+ printf(" Value of MII BMSR (basic mode status register) is %4.4x.\n",
+ mdio_read(ioaddr, phy_id, 1));
+ return 0;
+}
+\f
+/* Emit transceiver-specific info. */
+
+struct msg_tbl { int bitmask; char *msg; };
+
+static void msg_if_set(const int val, const struct msg_tbl msg_tbl[])
+{
+ int i;
+ for (i = 0; msg_tbl[i].bitmask; i++)
+ if (msg_tbl[i].bitmask & val)
+ printf(" %s\n", msg_tbl[i].msg);
+}
+
+static void msg_if_set_fmt(const int val, const struct msg_tbl msg_tbl[],
+ const char *fmt)
+{
+ int i;
+ for (i = 0; msg_tbl[i].bitmask; i++)
+ if (msg_tbl[i].bitmask & val)
+ printf(fmt, msg_tbl[i].msg);
+}
+
+static void qs6612(long ioaddr, int phy_id)
+{
+ printf(" QS6612 extra registers: Mode %4.4x.\n"
+ " Interrupt source %4.4x, mask %4.4x.\n"
+ " PHY control %4.4x.\n",
+ mii_val[17], mii_val[29], mii_val[30], mii_val[31]);
+ return;
+}
+
+static void ns83843(long ioaddr, int phy_id)
+{
+ printf(" NatSemi 83843 extra registers:\n"
+ " PHY status %4.4x\n"
+ " %s link, %d Mb/sec %s duplex\n"
+ " MII interrupts %sabled, %s pending.\n"
+ " Events since last read\n"
+ " Link disconnects %d\n"
+ " False carriers %d\n"
+ " Receive errors %d\n"
+ " Link beat is currently %sstable\n",
+ mii_val[0x10],
+ mii_val[10] & 0x0001 ? "Valid" : "Invalid",
+ mii_val[10] & 0x0002 ? 10 : 100,
+ mii_val[10] & 0x0004 ? "full" : "half",
+ mii_val[0x11] & 0x0002 ? "en":"dis",
+ mii_val[0x10] & 0x0100 ? "interrupt": "none",
+ mii_val[0x13], mii_val[0x14], mii_val[0x15],
+ mii_val[0x16] & 0x0010 ? "UN" : "");
+ return;
+}
+static void smsc83c180(long ioaddr, int phy_id)
+{
+ int mii_reg25 = mii_val[25];
+ printf(" SMSC 83c180 extra registers:\n"
+ " Auto-negotiation status 0x%4.4x.\n"
+ " 10baseT polarity is %s.\n"
+ " PHY address is %d.\n"
+ " Auto-negotiation %scomplete, 1%s0Mbps %s duplex.\n"
+ " Rx symbol errors since last read %d.\n",
+ mii_reg25,
+ mii_reg25 & 0x2000 ? "normal" : "reversed",
+ (mii_reg25>>8) & 0x1F,
+ mii_reg25 & 0x0080 ? "did not " : "",
+ mii_reg25 & 0x0020 ? "0" : "",
+ mii_reg25 & 0x0040 ? "full" : "half",
+ mdio_read(ioaddr, phy_id, 26));
+ return;
+}
+
+static const char *tdk_events[8] = {
+ "Jabber", "Rx error", "Negotiation page received", "Link detection fault",
+ "Link partner acknowledge", "Link status change", "Remote partner fault",
+ "Auto-Negotiation complete"};
+
+static const struct msg_tbl tdk_reg16[] = {
+ {0x8000, " Transceiver is in repeater mode!"},
+ {0x4000, " Interrupt pin set to active high."},
+ {0x2000, " Reserved bit 12 is unexpectedly set."},
+ {0x1000, " Transmit pins are internally disconnected."},
+ {0x0800, " 10baseT signal quality test is disabled."},
+ {0x0400, " 10baseT loopback mode."},
+ {0, 0},
+};
+
+static void tdk78q2120(long ioaddr, int phy_id)
+{
+ int mii_reg16 = mii_val[16];
+ int mii_reg17 = mii_val[17];
+ int mii_reg18 = mii_val[18];
+ int i;
+ printf(" TDK format vendor-specific registers 16..18 are "
+ "0x%4.4x 0x%4.4x 0x%4.4x\n", mii_reg16, mii_reg17, mii_reg18);
+ printf(" Link polarity is %s %s.\n"
+ "%s%s"
+ " Auto-negotiation %s, 1%s0Mbps %s duplex.\n"
+ " Rx link in %s state, PLL %s.\n",
+ mii_reg16 & 0x0020 ? "OVERRIDDEN to" : "detected as",
+ mii_reg16 & 0x0010 ? "reversed" : "normal",
+ mii_reg16 & 0x0002 ?
+ " 100baseTx Coding and scrambling is disabled!\n":"",
+ mii_reg16 & 0x0001 ? " Rx_CLK power-save mode is enabled!\n":"",
+ mii_reg18 & 0x1000 ? "had no common media" : "complete",
+ mii_reg18 & 0x0400 ? "0" : "",
+ mii_reg18 & 0x0800 ? "full" : "half",
+ mii_reg18 & 0x0200 ? "pass" : "fail",
+ mii_reg18 & 0x0100 ? "slipped since last read" : "locked");
+
+ msg_if_set(mii_reg16, tdk_reg16);
+ if (mii_reg17 & 0x00ff) {
+ printf(" Events since last read:");
+ for (i = 0; i < 8; i++)
+ if (mii_reg17 & (1 << i))
+ printf(" %s", tdk_events[i]);
+ } else
+ printf(" No new link status events.");
+
+ if (mii_reg17 & 0xff00) {
+ printf("\n Events that will raise an interrupt:");
+ for (i = 0; i < 8; i++)
+ if (mii_reg17 & (0x100 << i))
+ printf(" %s", tdk_events[i]);
+ }
+ printf("\n");
+ return;
+}
+
+static void davicom_dm9101(long ioaddr, int phy_id)
+{
+ printf(" Davicom vendor specific registers: 0x%4.4x 0x%4.4x 0x%4.4x.\n",
+ mii_val[16], mii_val[17], mii_val[18]);
+}
+static void intel_i553(long ioaddr, int phy_id)
+{
+ printf(" This transceiver is 100baseT4 only! Register 16 is %4.4x.\n",
+ mii_val[16]);
+}
+/* http://www.enablesemi.com/cgi-bin/byteserve/Products/Docs/3VCardBus.pdf */
+static void enablesemi(long ioaddr, int phy_id)
+{
+ printf(" Isolated %d times, %d false carrier events, %d Rx errors.\n",
+ mii_val[18], mii_val[19], mii_val[21]);
+ printf(" Cable polarity is %s, 100Mb PLL is %slocked.\n",
+ mii_val[28]&0x8000 ? "reversed" : "normal",
+ mii_val[27]&0x2000 ? "" : "un");
+}
+/* The amd79c901 contains both PNA and 10/100 management registers.
+ http://www.amd.com/products/npd/techdocs/22304.pdf
+*/
+static void amd_pna(long ioaddr, int phy_id)
+{
+ printf(" HomePNA transceiver in %s speed, %s power mode.\n",
+ mii_val[16] & 4 ? "high" : "low",
+ mii_val[16] & 2 ? "high" : "low");
+ printf(" HomePNA noise level %d, peak power %d..\n",
+ mii_val[25] >> 8, mii_val[25] & 0xff);
+}
+static void amd_tx(long ioaddr, int phy_id)
+{
+ int mii_reg25 = mii_val[25];
+ printf(" AMD vendor specific registers: 0x%4.4x 0x%4.4x 0x%4.4x.\n",
+ mii_val[16], mii_val[17], mii_val[18]);
+ printf(" The link is %s in 10%s %s duplex mode, autonegotiation state "
+ "has%s changed.\n",
+ mii_reg25 & 8 ? "up" : "down",
+ mii_reg25 & 1 ? "0baseTx" : "baseT",
+ mii_reg25 & 4 ? "full" : "half",
+ mii_reg25 & 2 ? "" : " not");
+}
+
+static const struct msg_tbl admtek_reg21[] = {
+ {0x4000, " Link test diabled: Ignoring lack of 10baseT link beat."},
+ {0x2000, " Link forced up."},
+ {0x1000, " Tx jabber check disabled."},
+ {0x0080, " Transmitting 'Far End Fault'!"},
+ {0x0040, " Rx error count full."},
+ {0x0008, " Remote loop back enabled."},
+ {0, 0},
+};
+
+static void admtek(long ioaddr, int phy_id)
+{
+
+ printf(" ADMtek vendor specific registers information:\n"
+ " Cable length is approximately %d meters.\n"
+ " The receiver has lost lock %d times since last check and "
+ "had %d error events.\n",
+ ((mii_val[20] & 0x00f0) >> 4)*10,
+ mii_val[23], mii_val[23]);
+ msg_if_set(mii_val[21], admtek_reg21);
+ tdk78q2120(ioaddr, phy_id);
+}
+
+static void lu3x31(long ioaddr, int phy_id)
+{
+ printf(" Lucent vendor specific registers 17: 0x%4.4x"
+ " 29: 0x%4.4x 30: 0x%4.4x 31: 0x%4.4x.\n",
+ mii_val[17], mii_val[29], mii_val[30], mii_val[31]);
+}
+
+static const struct msg_tbl myson_reg16[] = {
+ {0x0080, " Far end fault enabled."},
+ {0x0040, " Transformer ratio 1.25:1."},
+ {0x0020, " Polarity correction diabled."},
+ {0x0010, " Link is forced up regardless of link beat."},
+ {0x0004, " Bypass Jabber check."},
+ {0x0001, " 100baseFx mode selected."},
+ {0, 0},
+};
+
+static void myson981(long ioaddr, int phy_id)
+{
+ int i, mii_reg17 = mii_val[17];
+
+ printf(" Myson mtd981 extra registers: %4.4x %4.4x %4.4x %4.4x.\n",
+ mii_val[16], mii_val[17], mii_val[18], mii_val[19]);
+ msg_if_set(mii_val[16] & 0xC800, tdk_reg16);
+ msg_if_set(mii_val[16], myson_reg16);
+
+ if (mii_reg17 & 0x00ff) {
+ printf(" Events since last read:");
+ for (i = 0; i < 8; i++)
+ if (mii_reg17 & (1 << i))
+ printf(" %s", tdk_events[i]);
+ } else
+ printf(" No new link status events.");
+ if (mii_reg17 & 0xff00) {
+ printf("\n Events that will raise an interrupt:");
+ for (i = 0; i < 8; i++)
+ if (mii_reg17 & (0x100 << i))
+ printf(" %s", tdk_events[i]);
+ }
+ printf("\n");
+
+ return;
+}
+
+/* These are much like the TDK events in reversed order. */
+static const struct msg_tbl via_reg17[] = {
+ {0x0001, "Auto-Negotiation complete"},
+ {0x0002, "Remote fault detected"},
+ {0x0004, "Link failure detected"},
+ {0x0008, "Bad Start Stream detected"},
+ {0x0010, "Parallel detection fault"},
+ {0x0020, "Extended negotiation page received"},
+ {0x0040, "5B/4B code error detected"},
+ {0x0080, "Jabber detected"},
+ {0, 0},
+};
+
+static void via_tahoe(long ioaddr, int phy_id)
+{
+ int mii_reg16 = mii_val[16];
+ int mii_reg17 = mii_val[17];
+ int mii_reg18 = mii_val[18];
+
+ printf(" VIA Tahoe extended registers: 16 %4.4x #17 %4.4x #18 %4.4x.\n",
+ mii_reg16, mii_reg17, mii_reg18);
+ msg_if_set_fmt(mii_reg17, via_reg17, " %s\n");
+ printf(" Link %s 10%s Mbps %s duplex\n",
+ mii_reg18 & 0x2000 ? "up" : "down",
+ mii_reg18 & 0x0400 ? "0" : "",
+ mii_reg18 & 0x0800 ? "full" : "half");
+}
+
+/* Information from
+ http://www.via.com.tw/en/datasheet/DS6103110.pdf
+*/
+
+static void via_vt6103(long ioaddr, int phy_id)
+{
+ printf(" VIA vt6103 error counts since the last check:\n"
+ " The link has failed %d times.\n"
+ " The receiver has lost lock %d times.\n"
+ " There have been %d false carrier/SQE error.\n",
+ mii_val[21], mii_val[22], mii_val[23]);
+}
+
+/* Information from
+ http://www.via.com.tw/en/Networking/DS6105LOM100.pdf
+*/
+
+static void via_vt6105(long ioaddr, int phy_id)
+{
+ printf(" VIA vt6105 PHY status:\n"
+ " Duplex %s speed %s\n",
+ mii_val[20] & 0x0001 ? "full" : "half",
+ mii_val[20] & 0x0002 ? "100" : "10");
+}
+
+/* Information from
+ http://www.via.com.tw/en/Networking/DS6105LOM100.pdf
+*/
+static void intel(long ioaddr, int phy_id)
+{
+ printf(" Intel 8255* PHY #%d extended management registers:\n"
+ " Error counts, cleared when read:\n"
+ " False carriers %d\n"
+ " Link disconnects %d\n"
+ " Receive errors %d\n"
+ " Rx symbol errors %d.\n"
+ " Rx 10Mbps Early End-Of-Frame errors %d.\n"
+ " Rx 100Mbps Early End-Of-Frame errors %d.\n"
+ " Tx jabber errors %d.\n",
+ mii_val[18],
+ mii_val[19], mii_val[20], mii_val[21], mii_val[22], mii_val[23],
+ mii_val[24], mii_val[25]);
+}
+
+\f
+/*
+ * Local variables:
+ * compile-command: "cc -O -Wall -c libmii.c"
+ * c-indent-level: 4
+ * c-basic-offset: 4
+ * tab-width: 4
+ * End:
+ */
--- /dev/null
+/* Mode: C;
+ * mii-diag.c: Examine and set the MII registers of a network interfaces.
+
+ Usage: mii-diag [-vw] interface.
+
+ This program reads and writes the Media Independent Interface (MII)
+ management registers on network transceivers. The registers control
+ and report network link settings and errors. Examples are link speed,
+ duplex, capabilities advertised to the link partner, status LED
+ indications and link error counters.
+
+ Notes:
+ The compile-command is at the end of this source file.
+ This program works with drivers that implement MII ioctl() calls.
+
+ Written/copyright 1997-2003 by Donald Becker <becker@scyld.com>
+
+ This program is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public
+ License as published by the Free Software Foundation.
+
+ The author may be reached as becker@scyld.com, or C/O
+ Scyld Computing Corporation
+ 914 Bay Ridge Road, Suite 220
+ Annapolis MD 21403
+
+ References
+ http://scyld.com/expert/mii-status.html
+ http://scyld.com/expert/NWay.html
+ http://www.national.com/pf/DP/DP83840.html
+*/
+
+static char version[] =
+"mii-diag.c:v2.11 3/21/2005 Donald Becker (becker@scyld.com)\n"
+" http://www.scyld.com/diag/index.html\n";
+
+static const char usage_msg[] =
+"Usage: %s [--help] [-aDfrRvVw] [-AF <speed+duplex>] [--watch] <interface>.\n";
+static const char long_usage_msg[] =
+"Usage: %s [-aDfrRvVw] [-AF <speed+duplex>] [--watch] <interface>.\n"
+"\n"
+" This program configures and monitors the transceiver management registers\n"
+" for network interfaces. It uses the Media Independent Interface (MII)\n"
+" standard with additional Linux-specific controls to communicate with the\n"
+" underlying device driver. The MII registers control and report network\n"
+" link settings and errors. Examples are link speed, duplex, capabilities\n"
+" advertised to the link partner, status LED indications and link error\n"
+" counters.\n"
+"\n"
+" The common usage is\n"
+" mii-diag eth0\n"
+"\n"
+" The default interface is \"eth0\".\n"
+" Frequently used options are\n"
+" -A --advertise <speed|setting>\n"
+" -F --fixed-speed <speed>\n"
+" Speed is one of: 100baseT4, 100baseTx, 100baseTx-FD, 100baseTx-HD,\n"
+" 10baseT, 10baseT-FD, 10baseT-HD\n"
+" -s --status Return exit status 2 if there is no link beat.\n"
+"\n"
+" Less frequently used options are\n"
+" -a --all-interfaces Show the status all interfaces\n"
+" (Not recommended with options that change settings.)\n"
+" -D --debug\n"
+" -g --read-parameters Get driver-specific parameters.\n"
+" -G --set-parameters PARMS Set driver-specific parameters.\n"
+" Parameters are comma separated, missing elements retain existing value.\n"
+" -M --msg-level LEVEL Set the driver message bit map.\n"
+" -p --phy ADDR Set the PHY (MII address) to report.\n"
+" -r --restart Restart the link autonegotiation.\n"
+" -R --reset Reset the transceiver.\n"
+" -v --verbose Report each action taken.\n"
+" -V --version Emit version information.\n"
+" -w --watch Continuously monitor the transceiver and report changes.\n"
+"\n"
+" This command returns success (zero) if the interface information can be\n"
+" read. If the --status option is passed, a zero return means that the\n"
+" interface has link beat.\n";
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#ifdef use_linux_libc5
+#include <linux/if_arp.h>
+#include <linux/if_ether.h>
+#endif
+
+typedef u_int32_t u32;
+typedef u_int16_t u16;
+typedef u_int8_t u8;
+
+#if defined(SIOCGPARAMS) && SIOCGPARAMS != SIOCDEVPRIVATE+3
+#error Changed definition for SIOCGPARAMS
+#else
+#define SIOCGPARAMS (SIOCDEVPRIVATE+3) /* Read operational parameters. */
+#define SIOCSPARAMS (SIOCDEVPRIVATE+4) /* Set operational parameters. */
+#endif
+
+const char shortopts[] = "aA:C:DfF:gG:hmM:p:rRsvVw?";
+struct option longopts[] = {
+ /* { name has_arg *flag val } */
+ {"all-interfaces", 0, 0, 'a'}, /* Show all interfaces. */
+ {"advertise", 1, 0, 'A'}, /* Change the capabilities advertised. */
+ {"BMCR", 1, 0, 'C'}, /* Set the control register. */
+ {"debug", 0, 0, 'D'}, /* Increase the debug level. */
+ {"force", 0, 0, 'f'}, /* Force the operation. */
+ {"fixed-speed", 1, 0, 'F'}, /* Fixed speed name. */
+ {"read-parameters", 0, 0, 'g'}, /* Show general settings values. */
+ {"set-parameters", 1, 0, 'G'}, /* Write general settings values. */
+ {"help", 0, 0, 'h'}, /* Print a long usage message. */
+ {"monitor", 0, 0, 'm'}, /* Monitor status register. */
+ {"msg-level", 1, 0, 'M'}, /* Set the driver message level. */
+ {"phy", 1, 0, 'p'}, /* Set the PHY (MII address) to report. */
+ {"restart", 0, 0, 'r'}, /* Restart the link negotiation */
+ {"reset", 0, 0, 'R'}, /* Reset the transceiver. */
+ {"status", 0, 0, 's'}, /* Non-zero exit status w/ no link beat. */
+ {"verbose", 0, 0, 'v'}, /* Report each action taken. */
+ {"version", 0, 0, 'V'}, /* Emit version information. */
+ {"watch", 0, 0, 'w'}, /* Constantly monitor the port. */
+ {"error", 0, 0, '?'}, /* Return the error message. */
+ { 0, 0, 0, 0 }
+};
+
+/* Usually in libmii.c, but trivial substitions are below. */
+extern int show_mii_details(long ioaddr, int phy_id);
+extern void monitor_mii(long ioaddr, int phy_id);
+int show_mii_details(long ioaddr, int phy_id) __attribute__((weak));
+void monitor_mii(long ioaddr, int phy_id) __attribute__((weak));
+
+
+/* Command-line flags. */
+unsigned int opt_a = 0, /* Show-all-interfaces flag. */
+ opt_f = 0, /* Force the operation. */
+ opt_g = 0,
+ opt_G = 0,
+ verbose = 0, /* Verbose flag. */
+ debug = 0,
+ opt_version = 0,
+ opt_restart = 0,
+ opt_reset = 0,
+ opt_status = 0,
+ opt_watch = 0;
+static int msg_level = -1;
+static int set_BMCR = -1;
+static int nway_advertise = 0;
+static int fixed_speed = -1;
+static int override_phy = -1;
+char *opt_G_string = NULL;
+
+/* Internal values. */
+int new_ioctl_nums;
+int skfd = -1; /* AF_INET socket for ioctl() calls. */
+struct ifreq ifr;
+
+int do_one_xcvr(int skfd);
+int show_basic_mii(long ioaddr, int phy_id);
+int mdio_read(int skfd, int phy_id, int location);
+void mdio_write(int skfd, int phy_id, int location, int value);
+static int parse_advertise(const char *capabilities);
+static void monitor_status(long ioaddr, int phy_id);
+
+
+int
+main(int argc, char **argv)
+{
+ int c, errflag = 0;
+ char **spp, *ifname;
+ char *progname = rindex(argv[0], '/') ? rindex(argv[0], '/')+1 : argv[0];
+
+ while ((c = getopt_long(argc, argv, shortopts, longopts, 0)) != EOF)
+ switch (c) {
+ case 'a': opt_a++; break;
+ case 'A': nway_advertise |= parse_advertise(optarg);
+ if (nway_advertise == -1) errflag++;
+ break;
+ case 'C': set_BMCR = strtoul(optarg, NULL, 16); break;
+ case 'D': debug++; break;
+ case 'f': opt_f++; break;
+ case 'F': fixed_speed = parse_advertise(optarg);
+ if (fixed_speed == -1) errflag++;
+ break;
+ case 'g': opt_g++; break;
+ case 'G': opt_G++; opt_G_string = strdup(optarg); break;
+ case 'm': opt_watch++; opt_status++; break;
+ case 'M': msg_level = strtoul(optarg, NULL, 0); break;
+ case 'h': fprintf(stderr, long_usage_msg, progname); return 0;
+ case 'p': override_phy = atoi(optarg); break;
+ case 'r': opt_restart++; break;
+ case 'R': opt_reset++; break;
+ case 's': opt_status++; break;
+ case 'v': verbose++; break;
+ case 'V': opt_version++; break;
+ case 'w': opt_watch++; break;
+ case '?': errflag++; break;
+ }
+ if (errflag) {
+ fprintf(stderr, usage_msg, progname);
+ return 2;
+ }
+
+ if (verbose || opt_version)
+ printf(version);
+
+ /* Open a basic socket. */
+ if ((skfd = socket(AF_INET, SOCK_DGRAM,0)) < 0) {
+ perror("socket");
+ return 1;
+ }
+
+ if (debug)
+ fprintf(stderr, "DEBUG: argc=%d, optind=%d and argv[optind] is %s.\n",
+ argc, optind, argv[optind]);
+
+ /* No remaining args means show all interfaces. */
+ if (optind == argc) {
+ ifname = "eth0";
+ fprintf(stderr, "Using the default interface 'eth0'.\n");
+ } else {
+ /* Copy the interface name. */
+ spp = argv + optind;
+ ifname = *spp++;
+ }
+
+ if (ifname == NULL) {
+ ifname = "eth0";
+ fprintf(stderr, "Using the default interface 'eth0'.\n");
+ }
+
+ /* Verify that the interface supports the ioctl(), and if
+ it is using the new or old SIOCGMIIPHY value (grrr...).
+ */
+ {
+ u16 *data = (u16 *)(&ifr.ifr_data);
+
+ strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ data[0] = 0;
+
+ if (ioctl(skfd, 0x8947, &ifr) >= 0) {
+ new_ioctl_nums = 1;
+ } else if (ioctl(skfd, SIOCDEVPRIVATE, &ifr) >= 0) {
+ new_ioctl_nums = 0;
+ } else {
+ fprintf(stderr, "SIOCGMIIPHY on %s failed: %s\n", ifname,
+ strerror(errno));
+ (void) close(skfd);
+ return 1;
+ }
+ if (verbose)
+ printf(" Using the %s SIOCGMIIPHY value on PHY %d "
+ "(BMCR 0x%4.4x).\n",
+ new_ioctl_nums ? "new" : "old", data[0], data[3]);
+ }
+
+ do_one_xcvr(skfd);
+
+ (void) close(skfd);
+ return 0;
+}
+
+int do_one_xcvr(int skfd)
+{
+ u16 *data = (u16 *)(&ifr.ifr_data);
+ u32 *data32 = (u32 *)(&ifr.ifr_data);
+ unsigned phy_id = data[0];
+
+ if (override_phy >= 0) {
+ printf("Using the specified MII PHY index %d.\n", override_phy);
+ phy_id = override_phy;
+ }
+
+ if (opt_g || opt_G || msg_level >= 0) {
+ if (ioctl(skfd, SIOCGPARAMS, &ifr) < 0) {
+ fprintf(stderr, "SIOCGPARAMS on %s failed: %s\n", ifr.ifr_name,
+ strerror(errno));
+ return -1;
+ }
+ }
+ if (opt_g) {
+ int i;
+ printf("Driver general parameter settings:");
+ for (i = 0; i*sizeof(u32) < sizeof(ifr.ifr_ifru); i++) {
+ printf(" %d", data32[i]);
+ }
+ printf(".\n");
+ }
+ if (opt_G) {
+ /* Set up to four arbitrary driver parameters from the -G parameter.
+ The format is comma separated integers, with a missing element
+ retaining the previous value.
+ */
+ char *str = opt_G_string;
+ int i;
+ for (i = 0; str && i < 4; i++) {
+ char *endstr;
+ u32 newval = strtol(str, &endstr, 0);
+ if (debug)
+ printf(" parse string '%s' value %d end '%s'.\n",
+ str, newval, endstr);
+ if (str == endstr) {
+ if (endstr[0] == ',') /* No parameter */
+ str = endstr+1;
+ else {
+ fprintf(stderr, "Invalid driver parameter '%s'.\n", str);
+ str = index(str, ',');
+ }
+ } else if (endstr[0] == ',') {
+ data32[i] = newval;
+ str = endstr + 1;
+ } else if (endstr[0] == 0) {
+ data32[i] = newval;
+ break;
+ }
+ }
+ printf("Setting new driver general parameters:");
+ for (i = 0; i*sizeof(u32) < sizeof(ifr.ifr_ifru); i++) {
+ printf(" %d", data32[i]);
+ }
+ printf(".\n");
+ if (ioctl(skfd, SIOCSPARAMS, &ifr) < 0) {
+ fprintf(stderr, "SIOCSPARAMS on %s failed: %s\n", ifr.ifr_name,
+ strerror(errno));
+ return -1;
+ }
+ }
+ if (msg_level >= 0) {
+ data32[0] = msg_level;
+ if (ioctl(skfd, SIOCSPARAMS, &ifr) < 0) {
+ fprintf(stderr, "SIOCSPARAMS on %s failed: %s\n", ifr.ifr_name,
+ strerror(errno));
+ return -1;
+ }
+ }
+
+ if (opt_reset) {
+ printf("Resetting the transceiver...\n");
+ mdio_write(skfd, phy_id, 0, 0x8000);
+ }
+ /* Note: PHY addresses > 32 are pseudo-MII devices, usually built-in. */
+ if (phy_id < 64 && nway_advertise > 0) {
+ printf(" Setting the media capability advertisement register of "
+ "PHY #%d to 0x%4.4x.\n", phy_id, nway_advertise | 1);
+ mdio_write(skfd, phy_id, 4, nway_advertise | 1);
+ mdio_write(skfd, phy_id, 0, 0x1000);
+ }
+
+ if (opt_restart) {
+ printf("Restarting negotiation...\n");
+ mdio_write(skfd, phy_id, 0, 0x0000);
+ mdio_write(skfd, phy_id, 0, 0x1200);
+ }
+ /* To force 100baseTx-HD do mdio_write(skfd, phy_id, 0, 0x2000); */
+ if (fixed_speed >= 0) {
+ int reg0_val = 0;
+ if (fixed_speed & 0x0180) /* 100mpbs */
+ reg0_val |= 0x2000;
+ if ((fixed_speed & 0x0140) && /* A full duplex type and */
+ ! (fixed_speed & 0x0820)) /* no half duplex types. */
+ reg0_val |= 0x0100;
+ printf("Setting the speed to \"fixed\", Control register %4.4x.\n",
+ reg0_val);
+ mdio_write(skfd, phy_id, 0, reg0_val);
+ }
+ if (set_BMCR >= 0) {
+ printf("Setting the Basic Mode Control Register to 0x%4.4x.\n",
+ set_BMCR);
+ mdio_write(skfd, phy_id, 0, set_BMCR);
+ }
+
+ if (opt_watch && opt_status)
+ monitor_status(skfd, phy_id);
+
+ show_basic_mii(skfd, phy_id);
+#ifdef LIBMII
+ if (verbose)
+ show_mii_details(skfd, phy_id);
+#else
+ if (verbose || debug) {
+ int mii_reg, mii_val;
+ printf(" MII PHY #%d transceiver registers:", phy_id);
+ for (mii_reg = 0; mii_reg < 32; mii_reg++) {
+ mii_val = mdio_read(skfd, phy_id, mii_reg);
+ printf("%s %4.4x", (mii_reg % 8) == 0 ? "\n " : "",
+ mii_val);
+ }
+ printf("\n");
+ }
+#endif
+
+ if (opt_watch)
+ monitor_mii(skfd, phy_id);
+ if (opt_status &&
+ (mdio_read(skfd, phy_id, 1) & 0x0004) == 0)
+ exit(2);
+ return 0;
+}
+
+int mdio_read(int skfd, int phy_id, int location)
+{
+ u16 *data = (u16 *)(&ifr.ifr_data);
+
+ data[0] = phy_id;
+ data[1] = location;
+
+ if (ioctl(skfd, new_ioctl_nums ? 0x8948 : SIOCDEVPRIVATE+1, &ifr) < 0) {
+ fprintf(stderr, "SIOCGMIIREG on %s failed: %s\n", ifr.ifr_name,
+ strerror(errno));
+ return -1;
+ }
+ return data[3];
+}
+
+void mdio_write(int skfd, int phy_id, int location, int value)
+{
+ u16 *data = (u16 *)(&ifr.ifr_data);
+
+ data[0] = phy_id;
+ data[1] = location;
+ data[2] = value;
+
+ if (ioctl(skfd, new_ioctl_nums ? 0x8949 : SIOCDEVPRIVATE+2, &ifr) < 0) {
+ fprintf(stderr, "SIOCSMIIREG on %s failed: %s\n", ifr.ifr_name,
+ strerror(errno));
+ }
+}
+
+/* Parse the command line argument for advertised capabilities. */
+static int parse_advertise(const char *capabilities)
+{
+ const char *mtypes[] = {
+ "100baseT4", "100baseTx", "100baseTx-FD", "100baseTx-HD",
+ "10baseT", "10baseT-FD", "10baseT-HD", 0,
+ };
+ char *endptr;
+ int cap_map[] = { 0x0200, 0x0180, 0x0100, 0x0080, 0x0060, 0x0040, 0x0020,};
+ int i;
+ if ( ! capabilities) {
+ fprintf(stderr, "You passed -A 'NULL'. You must provide a media"
+ " list to advertise!\n");
+ return -1;
+ }
+ if (debug)
+ fprintf(stderr, "Advertise string is '%s'.\n", capabilities);
+ for (i = 0; mtypes[i]; i++)
+ if (strcasecmp(mtypes[i], capabilities) == 0)
+ return cap_map[i];
+ if ((i = strtol(capabilities, &endptr, 16)) <= 0xffff && endptr[0] == 0)
+ return i;
+ fprintf(stderr, "Invalid media advertisement value '%s'.\n"
+ " Either pass a numeric value or one of the following names:\n",
+ capabilities);
+ for (i = 0; mtypes[i]; i++)
+ fprintf(stderr, " %-14s %3.3x\n", mtypes[i], cap_map[i]);
+ return -1;
+}
+
+/* Trivial versions if we don't link against libmii.c */
+static const char *media_names[] = {
+ "10baseT", "10baseT-FD", "100baseTx", "100baseTx-FD", "100baseT4",
+ "Flow-control", 0,
+};
+/* Various non-good bits in the command register. */
+static const char *bmcr_bits[] = {
+ " Internal Collision-Test enabled!\n", "", /* 0x0080,0x0100 */
+ " Restarted auto-negotiation in progress!\n",
+ " Transceiver isolated from the MII!\n",
+ " Transceiver powered down!\n", "", "",
+ " Transceiver in loopback mode!\n",
+ " Transceiver currently being reset!\n",
+};
+
+int show_basic_mii(long ioaddr, int phy_id)
+{
+ int mii_reg, i;
+ u16 mii_val[32];
+ u16 bmcr, bmsr, new_bmsr, nway_advert, lkpar;
+
+ for (mii_reg = 0; mii_reg < 8; mii_reg++)
+ mii_val[mii_reg] = mdio_read(ioaddr, phy_id, mii_reg);
+ if ( ! verbose) {
+ printf("Basic registers of MII PHY #%d: ", phy_id);
+ for (mii_reg = 0; mii_reg < 8; mii_reg++)
+ printf(" %4.4x", mii_val[mii_reg]);
+ printf(".\n");
+ }
+
+ if (mii_val[0] == 0xffff || mii_val[1] == 0x0000) {
+ printf(" No MII transceiver present!.\n");
+ if (! opt_f) {
+ printf(" Use '--force' to view the information anyway.\n");
+ return -1;
+ }
+ }
+ /* Descriptive rename. */
+ bmcr = mii_val[0];
+ bmsr = mii_val[1];
+ nway_advert = mii_val[4];
+ lkpar = mii_val[5];
+
+ if (lkpar & 0x4000) {
+ int negotiated = nway_advert & lkpar & 0x3e0;
+ int max_capability = 0;
+ /* Scan for the highest negotiated capability, highest priority
+ (100baseTx-FDX) to lowest (10baseT-HDX). */
+ int media_priority[] = {8, 9, 7, 6, 5}; /* media_names[i-5] */
+ printf(" The autonegotiated capability is %4.4x.\n", negotiated);
+ for (i = 0; media_priority[i]; i++)
+ if (negotiated & (1 << media_priority[i])) {
+ max_capability = media_priority[i];
+ break;
+ }
+ if (max_capability)
+ printf("The autonegotiated media type is %s.\n",
+ media_names[max_capability - 5]);
+ else
+ printf("No common media type was autonegotiated!\n"
+ "This is extremely unusual and typically indicates a "
+ "configuration error.\n" "Perhaps the advertised "
+ "capability set was intentionally limited.\n");
+ }
+ printf(" Basic mode control register 0x%4.4x:", bmcr);
+ if (bmcr & 0x1000)
+ printf(" Auto-negotiation enabled.\n");
+ else
+ printf(" Auto-negotiation disabled, with\n"
+ " Speed fixed at 10%s mbps, %s-duplex.\n",
+ bmcr & 0x2000 ? "0" : "",
+ bmcr & 0x0100 ? "full":"half");
+ for (i = 0; i < 9; i++)
+ if (bmcr & (0x0080<<i))
+ printf(bmcr_bits[i]);
+
+ new_bmsr = mdio_read(ioaddr, phy_id, 1);
+ if ((bmsr & 0x0016) == 0x0004)
+ printf( " You have link beat, and everything is working OK.\n");
+ else
+ printf(" Basic mode status register 0x%4.4x ... %4.4x.\n"
+ " Link status: %sestablished.\n",
+ bmsr, new_bmsr,
+ bmsr & 0x0004 ? "" :
+ (new_bmsr & 0x0004) ? "previously broken, but now re" : "not ");
+ if (verbose) {
+ printf(" This transceiver is capable of ");
+ if (bmsr & 0xF800) {
+ for (i = 15; i >= 11; i--)
+ if (bmsr & (1<<i))
+ printf(" %s", media_names[i-11]);
+ } else
+ printf("<Warning! No media capabilities>");
+ printf(".\n");
+ printf(" %s to perform Auto-negotiation, negotiation %scomplete.\n",
+ bmsr & 0x0008 ? "Able" : "Unable",
+ bmsr & 0x0020 ? "" : "not ");
+ }
+
+ if (bmsr & 0x0010)
+ printf(" Remote fault detected!\n");
+ if (bmsr & 0x0002)
+ printf(" *** Link Jabber! ***\n");
+
+ if (lkpar & 0x4000) {
+ printf(" Your link partner advertised %4.4x:",
+ lkpar);
+ for (i = 5; i >= 0; i--)
+ if (lkpar & (0x20<<i))
+ printf(" %s", media_names[i]);
+ printf("%s.\n", lkpar & 0x0400 ? ", w/ 802.3X flow control" : "");
+ } else if (lkpar & 0x00A0)
+ printf(" Your link partner is generating %s link beat (no"
+ " autonegotiation).\n",
+ lkpar & 0x0080 ? "100baseTx" : "10baseT");
+ else if ( ! (bmcr & 0x1000))
+ printf(" Link partner information is not exchanged when in"
+ " fixed speed mode.\n");
+ else if ( ! (new_bmsr & 0x004))
+ ; /* If no partner, do not report status. */
+ else if (lkpar == 0x0001 || lkpar == 0x0000) {
+ printf(" Your link partner does not do autonegotiation, and this "
+ "transceiver type\n does not report the sensed link "
+ "speed.\n");
+ } else
+ printf(" Your link partner is strange, status %4.4x.\n", lkpar);
+
+ printf(" End of basic transceiver information.\n\n");
+ return 0;
+}
+
+static void monitor_status(long ioaddr, int phy_id)
+{
+ unsigned int baseline_1 = 0x55555555; /* Always show initial status. */
+
+ while (1) {
+ unsigned int new_1 = mdio_read(ioaddr, phy_id, 1);
+ if (new_1 != baseline_1) {
+ printf("%-12s 0x%4.4x 0x%4.4x\n",
+ new_1 & 0x04 ? (new_1==0xffff ? "unknown" : "up") :
+ new_1 & 0x20 ? "negotiating" : "down",
+ new_1, mdio_read(ioaddr, phy_id, 5));
+ fflush(stdout);
+ baseline_1 = new_1;
+ }
+ sleep(1);
+ }
+}
+
+int show_mii_details(long ioaddr, int phy_id)
+{
+ int mii_reg, mii_val;
+ printf(" MII PHY #%d transceiver registers:", phy_id);
+ for (mii_reg = 0; mii_reg < 32; mii_reg++) {
+ mii_val = mdio_read(skfd, phy_id, mii_reg);
+ printf("%s %4.4x", (mii_reg % 8) == 0 ? "\n " : "",
+ mii_val);
+ }
+ printf("\nThis version of 'mii-diag' has not been linked with "
+ "the libmii.c library.\n"
+ " That library provides extended transceiver status reports.\n");
+ return 0;
+}
+
+void monitor_mii(long ioaddr, int phy_id)
+{
+ fprintf(stderr, "\nThis version of 'mii-diag' has not been linked with "
+ "the libmii.c library \n"
+ " required for the media monitor option.\n");
+}
+
+
+\f
+/*
+ * Local variables:
+ * version-control: t
+ * kept-new-versions: 5
+ * c-indent-level: 4
+ * c-basic-offset: 4
+ * tab-width: 4
+ * compile-command: "gcc -Wall -Wstrict-prototypes -O mii-diag.c -DLIBMII libmii.c -o mii-diag"
+ * simple-compile-command: "gcc mii-diag.c -o mii-diag"
+ * End:
+ */
git.openpandora.org / openembedded.git / commitdiff