/* $OpenBSD: if_lmc_media.c,v 1.16 2005/11/07 00:29:21 brad Exp $ */ /* $Id: if_lmc_media.c,v 1.16 2005/11/07 00:29:21 brad Exp $ */ /*- * Copyright (c) 1997-1999 LAN Media Corporation (LMC) * All rights reserved. www.lanmedia.com * * This code is written by Michael Graff for LMC. * The code is derived from permitted modifications to software created * by Matt Thomas (matt@3am-software.com). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * 3. All marketing or advertising materials mentioning features or * use of this software must display the following acknowledgement: * This product includes software developed by LAN Media Corporation * and its contributors. * 4. Neither the name of LAN Media Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY LAN MEDIA CORPORATION AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #include "bpfilter.h" #include #include #include #include #include #include #include #include #include /* only for declaration of wakeup() used by vm.h */ #include #include #include #include #include #include #if NBPFILTER > 0 #include #endif #include #include #include #include #include #include #include #include /* * For lack of a better place, put the T1 cable stuff here. */ char *lmc_t1_cables[] = { "V.10/RS423", "EIA530A", "reserved", "X.21", "V.35", "EIA449/EIA530/V.36", "V.28/EIA232", "none", NULL }; /* * protocol independent method. */ static void lmc_set_protocol(lmc_softc_t * const, lmc_ctl_t *); /* * media independent methods to check on media status, link, light LEDs, * etc. */ static void lmc_ds3_init(lmc_softc_t * const); static void lmc_ds3_default(lmc_softc_t * const); static void lmc_ds3_set_status(lmc_softc_t * const, lmc_ctl_t *); static void lmc_ds3_set_100ft(lmc_softc_t * const, int); static int lmc_ds3_get_link_status(lmc_softc_t * const); static void lmc_ds3_set_crc_length(lmc_softc_t * const, int); static void lmc_ds3_set_scram(lmc_softc_t * const, int); static void lmc_ds3_watchdog(lmc_softc_t * const); static void lmc_hssi_init(lmc_softc_t * const); static void lmc_hssi_default(lmc_softc_t * const); static void lmc_hssi_set_status(lmc_softc_t * const, lmc_ctl_t *); static void lmc_hssi_set_clock(lmc_softc_t * const, int); static int lmc_hssi_get_link_status(lmc_softc_t * const); static void lmc_hssi_set_link_status(lmc_softc_t * const, int); static void lmc_hssi_set_crc_length(lmc_softc_t * const, int); static void lmc_hssi_watchdog(lmc_softc_t * const); static void lmc_ssi_init(lmc_softc_t * const); static void lmc_ssi_default(lmc_softc_t * const); static void lmc_ssi_set_status(lmc_softc_t * const, lmc_ctl_t *); static void lmc_ssi_set_clock(lmc_softc_t * const, int); static void lmc_ssi_set_speed(lmc_softc_t * const, lmc_ctl_t *); static int lmc_ssi_get_link_status(lmc_softc_t * const); static void lmc_ssi_set_link_status(lmc_softc_t * const, int); static void lmc_ssi_set_crc_length(lmc_softc_t * const, int); static void lmc_ssi_watchdog(lmc_softc_t * const); static void lmc_t1_init(lmc_softc_t * const); static void lmc_t1_default(lmc_softc_t * const); static void lmc_t1_set_status(lmc_softc_t * const, lmc_ctl_t *); static int lmc_t1_get_link_status(lmc_softc_t * const); static void lmc_t1_set_circuit_type(lmc_softc_t * const, int); static void lmc_t1_set_crc_length(lmc_softc_t * const, int); static void lmc_t1_set_clock(lmc_softc_t * const, int); static void lmc_t1_watchdog(lmc_softc_t * const); static void lmc_dummy_set_1(lmc_softc_t * const, int); static void lmc_dummy_set2_1(lmc_softc_t * const, lmc_ctl_t *); static inline void write_av9110_bit(lmc_softc_t *, int); static void write_av9110(lmc_softc_t *, u_int32_t, u_int32_t, u_int32_t, u_int32_t, u_int32_t); lmc_media_t lmc_ds3_media = { lmc_ds3_init, /* special media init stuff */ lmc_ds3_default, /* reset to default state */ lmc_ds3_set_status, /* reset status to state provided */ lmc_dummy_set_1, /* set clock source */ lmc_dummy_set2_1, /* set line speed */ lmc_ds3_set_100ft, /* set cable length */ lmc_ds3_set_scram, /* set scrambler */ lmc_ds3_get_link_status, /* get link status */ lmc_dummy_set_1, /* set link status */ lmc_ds3_set_crc_length, /* set CRC length */ lmc_dummy_set_1, /* set T1 or E1 circuit type */ lmc_ds3_watchdog }; lmc_media_t lmc_hssi_media = { lmc_hssi_init, /* special media init stuff */ lmc_hssi_default, /* reset to default state */ lmc_hssi_set_status, /* reset status to state provided */ lmc_hssi_set_clock, /* set clock source */ lmc_dummy_set2_1, /* set line speed */ lmc_dummy_set_1, /* set cable length */ lmc_dummy_set_1, /* set scrambler */ lmc_hssi_get_link_status, /* get link status */ lmc_hssi_set_link_status, /* set link status */ lmc_hssi_set_crc_length, /* set CRC length */ lmc_dummy_set_1, /* set T1 or E1 circuit type */ lmc_hssi_watchdog }; lmc_media_t lmc_ssi_media = { lmc_ssi_init, /* special media init stuff */ lmc_ssi_default, /* reset to default state */ lmc_ssi_set_status, /* reset status to state provided */ lmc_ssi_set_clock, /* set clock source */ lmc_ssi_set_speed, /* set line speed */ lmc_dummy_set_1, /* set cable length */ lmc_dummy_set_1, /* set scrambler */ lmc_ssi_get_link_status, /* get link status */ lmc_ssi_set_link_status, /* set link status */ lmc_ssi_set_crc_length, /* set CRC length */ lmc_dummy_set_1, /* set T1 or E1 circuit type */ lmc_ssi_watchdog }; lmc_media_t lmc_t1_media = { lmc_t1_init, /* special media init stuff */ lmc_t1_default, /* reset to default state */ lmc_t1_set_status, /* reset status to state provided */ lmc_t1_set_clock, /* set clock source */ lmc_dummy_set2_1, /* set line speed */ lmc_dummy_set_1, /* set cable length */ lmc_dummy_set_1, /* set scrambler */ lmc_t1_get_link_status, /* get link status */ lmc_dummy_set_1, /* set link status */ lmc_t1_set_crc_length, /* set CRC length */ lmc_t1_set_circuit_type, /* set T1 or E1 circuit type */ lmc_t1_watchdog }; static void lmc_dummy_set_1(lmc_softc_t * const sc, int a) { } static void lmc_dummy_set2_1(lmc_softc_t * const sc, lmc_ctl_t *a) { } /* * HSSI methods */ static void lmc_hssi_init(lmc_softc_t * const sc) { sc->ictl.cardtype = LMC_CTL_CARDTYPE_LMC5200; lmc_gpio_mkoutput(sc, LMC_GEP_HSSI_CLOCK); } static void lmc_hssi_default(lmc_softc_t * const sc) { sc->lmc_miireg16 = LMC_MII16_LED_ALL; sc->lmc_media->set_link_status(sc, LMC_LINK_DOWN); sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_EXT); sc->lmc_media->set_crc_length(sc, LMC_CTL_CRC_LENGTH_16); } /* * Given a user provided state, set ourselves up to match it. This will * always reset the card if needed. */ static void lmc_hssi_set_status(lmc_softc_t * const sc, lmc_ctl_t *ctl) { if (ctl == NULL) { sc->lmc_media->set_clock_source(sc, sc->ictl.clock_source); lmc_set_protocol(sc, NULL); return; } /* * check for change in clock source */ if (ctl->clock_source && !sc->ictl.clock_source) { sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_INT); sc->lmc_timing = LMC_CTL_CLOCK_SOURCE_INT; } else if (!ctl->clock_source && sc->ictl.clock_source) { sc->lmc_timing = LMC_CTL_CLOCK_SOURCE_EXT; sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_EXT); } lmc_set_protocol(sc, ctl); } /* * 1 == internal, 0 == external */ static void lmc_hssi_set_clock(lmc_softc_t * const sc, int ie) { if (ie == LMC_CTL_CLOCK_SOURCE_EXT) { sc->lmc_gpio |= LMC_GEP_HSSI_CLOCK; LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_EXT; printf(LMC_PRINTF_FMT ": clock external\n", LMC_PRINTF_ARGS); } else { sc->lmc_gpio &= ~(LMC_GEP_HSSI_CLOCK); LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_INT; printf(LMC_PRINTF_FMT ": clock internal\n", LMC_PRINTF_ARGS); } } /* * return hardware link status. * 0 == link is down, 1 == link is up. */ static int lmc_hssi_get_link_status(lmc_softc_t * const sc) { u_int16_t link_status; link_status = lmc_mii_readreg(sc, 0, 16); if ((link_status & LMC_MII16_HSSI_CA) == LMC_MII16_HSSI_CA) return 1; else return 0; } static void lmc_hssi_set_link_status(lmc_softc_t * const sc, int state) { if (state == LMC_LINK_UP) sc->lmc_miireg16 |= LMC_MII16_HSSI_TA; else sc->lmc_miireg16 &= ~LMC_MII16_HSSI_TA; lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); } /* * 0 == 16bit, 1 == 32bit */ static void lmc_hssi_set_crc_length(lmc_softc_t * const sc, int state) { if (state == LMC_CTL_CRC_LENGTH_32) { /* 32 bit */ sc->lmc_miireg16 |= LMC_MII16_HSSI_CRC; sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_32; } else { /* 16 bit */ sc->lmc_miireg16 &= ~LMC_MII16_HSSI_CRC; sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_16; } lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); } static void lmc_hssi_watchdog (lmc_softc_t * const sc) { /* HSSI is blank */ } static void lmc_ds3_watchdog (lmc_softc_t * const sc) { sc->lmc_miireg16 = lmc_mii_readreg (sc, 0, 16); if (sc->lmc_miireg16 & 0x0018) { printf("%s: AIS Received\n", sc->lmc_xname); lmc_led_on (sc, LMC_DS3_LED1 | LMC_DS3_LED2); } } /* * DS3 methods */ /* * Set cable length */ static void lmc_ds3_set_100ft(lmc_softc_t * const sc, int ie) { if (ie == LMC_CTL_CABLE_LENGTH_GT_100FT) { sc->lmc_miireg16 &= ~LMC_MII16_DS3_ZERO; sc->ictl.cable_length = LMC_CTL_CABLE_LENGTH_GT_100FT; } else if (ie == LMC_CTL_CABLE_LENGTH_LT_100FT) { sc->lmc_miireg16 |= LMC_MII16_DS3_ZERO; sc->ictl.cable_length = LMC_CTL_CABLE_LENGTH_LT_100FT; } lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); } static void lmc_ds3_default(lmc_softc_t * const sc) { sc->lmc_miireg16 = LMC_MII16_LED_ALL; sc->lmc_media->set_link_status(sc, LMC_LINK_DOWN); sc->lmc_media->set_cable_length(sc, LMC_CTL_CABLE_LENGTH_LT_100FT); sc->lmc_media->set_scrambler(sc, LMC_CTL_OFF); sc->lmc_media->set_crc_length(sc, LMC_CTL_CRC_LENGTH_16); } /* * Given a user provided state, set ourselves up to match it. This will * always reset the card if needed. */ static void lmc_ds3_set_status(lmc_softc_t * const sc, lmc_ctl_t *ctl) { if (ctl == NULL) { sc->lmc_media->set_cable_length(sc, sc->ictl.cable_length); sc->lmc_media->set_scrambler(sc, sc->ictl.scrambler_onoff); lmc_set_protocol(sc, NULL); return; } /* * check for change in cable length setting */ if (ctl->cable_length && !sc->ictl.cable_length) lmc_ds3_set_100ft(sc, LMC_CTL_CABLE_LENGTH_GT_100FT); else if (!ctl->cable_length && sc->ictl.cable_length) lmc_ds3_set_100ft(sc, LMC_CTL_CABLE_LENGTH_LT_100FT); /* * Check for change in scrambler setting (requires reset) */ if (ctl->scrambler_onoff && !sc->ictl.scrambler_onoff) lmc_ds3_set_scram(sc, LMC_CTL_ON); else if (!ctl->scrambler_onoff && sc->ictl.scrambler_onoff) lmc_ds3_set_scram(sc, LMC_CTL_OFF); lmc_set_protocol(sc, ctl); } static void lmc_ds3_init(lmc_softc_t * const sc) { int i; sc->ictl.cardtype = LMC_CTL_CARDTYPE_LMC5245; /* writes zeros everywhere */ for (i = 0 ; i < 21 ; i++) { lmc_mii_writereg(sc, 0, 17, i); lmc_mii_writereg(sc, 0, 18, 0); } /* set some essential bits */ lmc_mii_writereg(sc, 0, 17, 1); lmc_mii_writereg(sc, 0, 18, 0x05); /* ser, xtx */ lmc_mii_writereg(sc, 0, 17, 5); lmc_mii_writereg(sc, 0, 18, 0x80); /* emode */ lmc_mii_writereg(sc, 0, 17, 14); lmc_mii_writereg(sc, 0, 18, 0x30); /* rcgen, tcgen */ /* clear counters and latched bits */ for (i = 0 ; i < 21 ; i++) { lmc_mii_writereg(sc, 0, 17, i); lmc_mii_readreg(sc, 0, 18); } } /* * 1 == DS3 payload scrambled, 0 == not scrambled */ static void lmc_ds3_set_scram(lmc_softc_t * const sc, int ie) { if (ie == LMC_CTL_ON) { sc->lmc_miireg16 |= LMC_MII16_DS3_SCRAM; sc->ictl.scrambler_onoff = LMC_CTL_ON; } else { sc->lmc_miireg16 &= ~LMC_MII16_DS3_SCRAM; sc->ictl.scrambler_onoff = LMC_CTL_OFF; } lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); } /* * return hardware link status. * 0 == link is down, 1 == link is up. */ static int lmc_ds3_get_link_status(lmc_softc_t * const sc) { u_int16_t link_status; lmc_mii_writereg(sc, 0, 17, 7); link_status = lmc_mii_readreg(sc, 0, 18); if ((link_status & LMC_FRAMER_REG0_DLOS) == 0) return 1; else return 0; } /* * 0 == 16bit, 1 == 32bit */ static void lmc_ds3_set_crc_length(lmc_softc_t * const sc, int state) { if (state == LMC_CTL_CRC_LENGTH_32) { /* 32 bit */ sc->lmc_miireg16 |= LMC_MII16_DS3_CRC; sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_32; } else { /* 16 bit */ sc->lmc_miireg16 &= ~LMC_MII16_DS3_CRC; sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_16; } lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); } /* * SSI methods */ static void lmc_ssi_init(lmc_softc_t * const sc) { u_int16_t mii17; int cable; sc->ictl.cardtype = LMC_CTL_CARDTYPE_LMC1000; mii17 = lmc_mii_readreg(sc, 0, 17); cable = (mii17 & LMC_MII17_SSI_CABLE_MASK) >> LMC_MII17_SSI_CABLE_SHIFT; sc->ictl.cable_type = cable; lmc_gpio_mkoutput(sc, LMC_GEP_SSI_TXCLOCK); } static void lmc_ssi_default(lmc_softc_t * const sc) { sc->lmc_miireg16 = LMC_MII16_LED_ALL; /* * make TXCLOCK always be an output */ lmc_gpio_mkoutput(sc, LMC_GEP_SSI_TXCLOCK); sc->lmc_media->set_link_status(sc, LMC_LINK_DOWN); sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_EXT); sc->lmc_media->set_speed(sc, NULL); sc->lmc_media->set_crc_length(sc, LMC_CTL_CRC_LENGTH_16); } /* * Given a user provided state, set ourselves up to match it. This will * always reset the card if needed. */ static void lmc_ssi_set_status(lmc_softc_t * const sc, lmc_ctl_t *ctl) { if (ctl == NULL) { sc->lmc_media->set_clock_source(sc, sc->ictl.clock_source); sc->lmc_media->set_speed(sc, &sc->ictl); lmc_set_protocol(sc, NULL); return; } /* * check for change in clock source */ if (ctl->clock_source == LMC_CTL_CLOCK_SOURCE_INT && sc->ictl.clock_source == LMC_CTL_CLOCK_SOURCE_EXT) { sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_INT); sc->lmc_timing = LMC_CTL_CLOCK_SOURCE_INT; } else if (ctl->clock_source == LMC_CTL_CLOCK_SOURCE_EXT && sc->ictl.clock_source == LMC_CTL_CLOCK_SOURCE_INT) { sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_EXT); sc->lmc_timing = LMC_CTL_CLOCK_SOURCE_EXT; } if (ctl->clock_rate != sc->ictl.clock_rate) sc->lmc_media->set_speed(sc, ctl); lmc_set_protocol(sc, ctl); } /* * 1 == internal, 0 == external */ static void lmc_ssi_set_clock(lmc_softc_t * const sc, int ie) { if (ie == LMC_CTL_CLOCK_SOURCE_EXT) { sc->lmc_gpio &= ~(LMC_GEP_SSI_TXCLOCK); LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_EXT; printf(LMC_PRINTF_FMT ": clock external\n", LMC_PRINTF_ARGS); } else { sc->lmc_gpio |= LMC_GEP_SSI_TXCLOCK; LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_INT; printf(LMC_PRINTF_FMT ": clock internal\n", LMC_PRINTF_ARGS); } } static void lmc_ssi_set_speed(lmc_softc_t * const sc, lmc_ctl_t *ctl) { lmc_ctl_t *ictl = &sc->ictl; lmc_av9110_t *av; /* original settings for clock rate of: * 100 KHz (8,25,0,0,2) were incorrect * they should have been 80,125,1,3,3 * There are 17 param combinations to produce this freq. * For 1.5 MHz use 120,100,1,1,2 (226 param. combinations) */ if (ctl == NULL) { av = &ictl->cardspec.ssi; ictl->clock_rate = 1500000; av->f = ictl->clock_rate; av->n = 120; av->m = 100; av->v = 1; av->x = 1; av->r = 2; write_av9110(sc, av->n, av->m, av->v, av->x, av->r); return; } av = &ctl->cardspec.ssi; if (av->f == 0) return; ictl->clock_rate = av->f; /* really, this is the rate we are */ ictl->cardspec.ssi = *av; write_av9110(sc, av->n, av->m, av->v, av->x, av->r); } /* * return hardware link status. * 0 == link is down, 1 == link is up. */ static int lmc_ssi_get_link_status(lmc_softc_t * const sc) { u_int16_t link_status; /* * missing CTS? Hmm. If we require CTS on, we may never get the * link to come up, so omit it in this test. * * Also, it seems that with a loopback cable, DCD isn't asserted, * so just check for things like this: * DSR _must_ be asserted. * One of DCD or CTS must be asserted. */ #ifdef CONFIG_LMC_IGNORE_HARDWARE_HANDSHAKE link_status = LMC_CSR_READ(sc, csr_gp_timer); link_status = 0x0000ffff - ( link_status & 0x0000ffff); return( link_status ); #else link_status = lmc_mii_readreg(sc, 0, 16); if ((link_status & LMC_MII16_SSI_DSR) == 0) return (0); if ((link_status & (LMC_MII16_SSI_CTS | LMC_MII16_SSI_DCD)) == 0) return (0); return (1); #endif } static void lmc_ssi_set_link_status(lmc_softc_t * const sc, int state) { if (state == LMC_LINK_UP) { sc->lmc_miireg16 |= (LMC_MII16_SSI_DTR | LMC_MII16_SSI_RTS); printf(LMC_PRINTF_FMT ": asserting DTR and RTS\n", LMC_PRINTF_ARGS); } else { sc->lmc_miireg16 &= ~(LMC_MII16_SSI_DTR | LMC_MII16_SSI_RTS); printf(LMC_PRINTF_FMT ": deasserting DTR and RTS\n", LMC_PRINTF_ARGS); } lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); } /* * 0 == 16bit, 1 == 32bit */ static void lmc_ssi_set_crc_length(lmc_softc_t * const sc, int state) { if (state == LMC_CTL_CRC_LENGTH_32) { /* 32 bit */ sc->lmc_miireg16 |= LMC_MII16_SSI_CRC; sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_32; sc->lmc_crcSize = LMC_CTL_CRC_BYTESIZE_4; } else { /* 16 bit */ sc->lmc_miireg16 &= ~LMC_MII16_SSI_CRC; sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_16; sc->lmc_crcSize = LMC_CTL_CRC_BYTESIZE_2; } lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); } /* * These are bits to program the ssi frequency generator */ static inline void write_av9110_bit(lmc_softc_t *sc, int c) { /* * set the data bit as we need it. */ sc->lmc_gpio &= ~(LMC_GEP_SERIALCLK); if (c & 0x01) sc->lmc_gpio |= LMC_GEP_SERIAL; else sc->lmc_gpio &= ~(LMC_GEP_SERIAL); LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); /* * set the clock to high */ sc->lmc_gpio |= LMC_GEP_SERIALCLK; LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); /* * set the clock to low again. */ sc->lmc_gpio &= ~(LMC_GEP_SERIALCLK); LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); } static void write_av9110(lmc_softc_t *sc, u_int32_t n, u_int32_t m, u_int32_t v, u_int32_t x, u_int32_t r) { int i; #if 0 printf(LMC_PRINTF_FMT ": speed %u, %d %d %d %d %d\n", LMC_PRINTF_ARGS, sc->ictl.clock_rate, n, m, v, x, r); #endif sc->lmc_gpio |= LMC_GEP_SSI_GENERATOR; sc->lmc_gpio &= ~(LMC_GEP_SERIAL | LMC_GEP_SERIALCLK); LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); /* * Set the TXCLOCK, GENERATOR, SERIAL, and SERIALCLK * as outputs. */ lmc_gpio_mkoutput(sc, (LMC_GEP_SERIAL | LMC_GEP_SERIALCLK | LMC_GEP_SSI_GENERATOR)); sc->lmc_gpio &= ~(LMC_GEP_SSI_GENERATOR); LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); /* * a shifting we will go... */ for (i = 0 ; i < 7 ; i++) write_av9110_bit(sc, n >> i); for (i = 0 ; i < 7 ; i++) write_av9110_bit(sc, m >> i); for (i = 0 ; i < 1 ; i++) write_av9110_bit(sc, v >> i); for (i = 0 ; i < 2 ; i++) write_av9110_bit(sc, x >> i); for (i = 0 ; i < 2 ; i++) write_av9110_bit(sc, r >> i); for (i = 0 ; i < 5 ; i++) write_av9110_bit(sc, 0x17 >> i); /* * stop driving serial-related signals */ lmc_gpio_mkinput(sc, (LMC_GEP_SERIAL | LMC_GEP_SERIALCLK | LMC_GEP_SSI_GENERATOR)); } static void lmc_ssi_watchdog (lmc_softc_t * const sc) { u_int16_t mii17; struct ssicsr2 { unsigned short dtr:1, dsr:1, rts:1, cable:3, crc:1, led0:1, led1:1, led2:1, led3:1, fifo:1, ll:1, rl:1, tm:1, loop:1; }; struct ssicsr2 *ssicsr; mii17 = lmc_mii_readreg (sc, 0, 17); ssicsr = (struct ssicsr2 *) &mii17; if (ssicsr->cable == 7) { lmc_led_off (sc, LMC_MII16_LED2); } else { lmc_led_on (sc, LMC_MII16_LED2); } } /* * T1 methods */ /* * The framer regs are multiplexed through MII regs 17 & 18 * write the register address to MII reg 17 and the * data to MII reg 18. */ static void lmc_t1_write(lmc_softc_t * const sc, int a, int d) { lmc_mii_writereg(sc, 0, 17, a); lmc_mii_writereg(sc, 0, 18, d); } static int lmc_t1_read(lmc_softc_t * const sc, int a) { lmc_mii_writereg(sc, 0, 17, a); return lmc_mii_readreg(sc, 0, 18); } static void lmc_t1_init(lmc_softc_t * const sc) { u_int16_t mii16; int i; sc->ictl.cardtype = LMC_CTL_CARDTYPE_LMC1200; mii16 = lmc_mii_readreg(sc, 0, 16); mii16 &= ~LMC_MII16_T1_XOE; lmc_mii_writereg (sc, 0, 16, mii16); sc->lmc_miireg16 = mii16; /* reset 8370 */ mii16 &= ~LMC_MII16_T1_RST; lmc_mii_writereg(sc, 0, 16, mii16 | LMC_MII16_T1_RST); lmc_mii_writereg(sc, 0, 16, mii16); /* set T1 or E1 line impedance */ /* mii16 &= ~LMC_MII16_T1_Z; */ mii16 |= LMC_MII16_T1_Z; lmc_mii_writereg(sc, 0, 16, mii16); /* Standard LMC1200 init code */ lmc_t1_write(sc, 0x01, 0x1B); /* CR0 - primary control */ lmc_t1_write(sc, 0x02, 0x42); /* JAT_CR - jitter atten config */ lmc_t1_write(sc, 0x14, 0x00); /* LOOP - loopback config */ lmc_t1_write(sc, 0x15, 0x00); /* DL3_TS - xtrnl datalink timeslot */ lmc_t1_write(sc, 0x18, 0xFF); /* PIO - programmable I/O */ lmc_t1_write(sc, 0x19, 0x30); /* POE - programmable OE */ lmc_t1_write(sc, 0x1A, 0x0F); /* CMUX - clock input mux */ lmc_t1_write(sc, 0x20, 0x41); /* LIU_CR - RX LIU config */ lmc_t1_write(sc, 0x22, 0x76); /* RLIU_CR - RX LIU config */ lmc_t1_write(sc, 0x40, 0x03); /* RCR0 - RX config */ lmc_t1_write(sc, 0x45, 0x00); /* RALM - RX alarm config */ lmc_t1_write(sc, 0x46, 0x05); /* LATCH - RX alarm/err/cntr latch */ lmc_t1_write(sc, 0x68, 0x40); /* TLIU_CR - TX LIU config */ lmc_t1_write(sc, 0x70, 0x0D); /* TCR0 - TX framer config */ lmc_t1_write(sc, 0x71, 0x05); /* TCR1 - TX config */ lmc_t1_write(sc, 0x72, 0x0B); /* TFRM - TX frame format */ lmc_t1_write(sc, 0x73, 0x00); /* TERROR - TX error insert */ lmc_t1_write(sc, 0x74, 0x00); /* TMAN - TX manual Sa/FEBE config */ lmc_t1_write(sc, 0x75, 0x00); /* TALM - TX alarm signal config */ lmc_t1_write(sc, 0x76, 0x00); /* TPATT - TX test pattern config */ lmc_t1_write(sc, 0x77, 0x00); /* TLB - TX inband loopback confg */ lmc_t1_write(sc, 0x90, 0x05); /* CLAD_CR - clock rate adapter confg */ lmc_t1_write(sc, 0x91, 0x05); /* CSEL - clad freq sel */ lmc_t1_write(sc, 0xA6, 0x00); /* DL1_CTL - DL1 control */ lmc_t1_write(sc, 0xB1, 0x00); /* DL2_CTL - DL2 control */ lmc_t1_write(sc, 0xD0, 0x47); /* SBI_CR - sys bus iface config */ lmc_t1_write(sc, 0xD1, 0x70); /* RSB_CR - RX sys bus config */ lmc_t1_write(sc, 0xD4, 0x30); /* TSB_CR - TX sys bus config */ for (i=0; i<32; i++) { lmc_t1_write(sc, 0x0E0+i, 0x00); /*SBCn sysbus perchannel ctl */ lmc_t1_write(sc, 0x100+i, 0x00); /* TPCn - TX per-channel ctl */ lmc_t1_write(sc, 0x180+i, 0x00); /* RPCn - RX per-channel ctl */ } for (i=1; i<25; i++) { lmc_t1_write(sc, 0x0E0+i, 0x0D); /* SBCn - sys bus per-channel ctl */ } mii16 |= LMC_MII16_T1_XOE; lmc_mii_writereg(sc, 0, 16, mii16); sc->lmc_miireg16 = mii16; } static void lmc_t1_default(lmc_softc_t * const sc) { sc->lmc_miireg16 = LMC_MII16_LED_ALL; sc->lmc_media->set_link_status(sc, LMC_LINK_DOWN); sc->lmc_media->set_circuit_type(sc, LMC_CTL_CIRCUIT_TYPE_T1); sc->lmc_media->set_crc_length(sc, LMC_CTL_CRC_LENGTH_16); } /* * Given a user provided state, set ourselves up to match it. This will * always reset the card if needed. */ static void lmc_t1_set_status(lmc_softc_t * const sc, lmc_ctl_t *ctl){ if (ctl == NULL) { sc->lmc_media->set_circuit_type(sc, sc->ictl.circuit_type); lmc_set_protocol(sc, NULL); return; } /* * check for change in circuit type */ if (ctl->circuit_type == LMC_CTL_CIRCUIT_TYPE_T1 && sc->ictl.circuit_type == LMC_CTL_CIRCUIT_TYPE_E1) sc->lmc_media->set_circuit_type(sc,LMC_CTL_CIRCUIT_TYPE_E1 ); else if (ctl->circuit_type == LMC_CTL_CIRCUIT_TYPE_E1 && sc->ictl.circuit_type == LMC_CTL_CIRCUIT_TYPE_T1) sc->lmc_media->set_circuit_type(sc, LMC_CTL_CIRCUIT_TYPE_T1); lmc_set_protocol(sc, ctl); } /* * return hardware link status. * 0 == link is down, 1 == link is up. */ static int lmc_t1_get_link_status(lmc_softc_t * const sc){ u_int16_t link_status; lmc_mii_writereg(sc, 0, 17, T1FRAMER_ALARM1_STATUS ); link_status = lmc_mii_readreg(sc, 0, 18); /* * LMC 1200 LED definitions * led0 yellow = far-end adapter is in Red alarm condition * led1 blue = received an Alarm Indication signal (upstream failure) * led2 Green = power to adapter, Gate Array loaded & driver attached * led3 red = Loss of Signal (LOS) or out of frame (OOF) conditions * detected on T3 receive signal */ /* detect a change in Blue alarm indication signal */ if( (sc->t1_alarm1_status & T1F_RAIS) != (link_status & T1F_RAIS) ) { if( link_status & T1F_RAIS ) { /* turn on blue LED */ printf("%s: link status: RAIS turn ON Blue %x\n", sc->lmc_xname, link_status); /* DEBUG */ lmc_led_on(sc, LMC_DS3_LED1); } else { /* turn off blue LED */ printf("%s: link status: RAIS turn OFF Blue %x\n", sc->lmc_xname, link_status ); /* DEBUG */ lmc_led_off(sc, LMC_DS3_LED1); } } /* * T1F_RYEL wiggles quite a bit, * taking it out until I understand why -baz 6/22/99 */ /* Yellow alarm indication */ if( (sc->t1_alarm1_status & T1F_RMYEL) != (link_status & T1F_RMYEL) ) { if( (link_status & (T1F_RYEL | T1F_RMYEL)) == 0 ) { /* turn off yellow LED */ printf("%s: link status: RYEL turn OFF Yellow %x\n", sc->lmc_xname, link_status); /* DEBUG */ lmc_led_off(sc, LMC_DS3_LED0); } else { /* turn on yellow LED */ printf("%s: link status: RYEL turn ON Yellow %x\n", sc->lmc_xname, link_status); /* DEBUG */ lmc_led_on(sc, LMC_DS3_LED0); } } sc->t1_alarm1_status = link_status; lmc_mii_writereg(sc, 0, 17, T1FRAMER_ALARM2_STATUS ); sc->t1_alarm2_status = lmc_mii_readreg(sc, 0, 18); /* link status based upon T1 receive loss of frame or * loss of signal - RED alarm indication */ if ((link_status & (T1F_RLOF | T1F_RLOS)) == 0) return 1; else return 0; } /* * 1 == T1 Circuit Type , 0 == E1 Circuit Type */ static void lmc_t1_set_circuit_type(lmc_softc_t * const sc, int ie) { if (ie == LMC_CTL_CIRCUIT_TYPE_T1) { sc->lmc_miireg16 |= LMC_MII16_T1_Z; sc->ictl.circuit_type = LMC_CTL_CIRCUIT_TYPE_T1; } else { sc->lmc_miireg16 &= ~LMC_MII16_T1_Z; sc->ictl.scrambler_onoff = LMC_CTL_CIRCUIT_TYPE_E1; } lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); } /* * 0 == 16bit, 1 == 32bit */ static void lmc_t1_set_crc_length(lmc_softc_t * const sc, int state) { if (state == LMC_CTL_CRC_LENGTH_32) { /* 32 bit */ sc->lmc_miireg16 |= LMC_MII16_T1_CRC; sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_32; sc->lmc_crcSize = LMC_CTL_CRC_BYTESIZE_4; } else { /* 16 bit */ sc->lmc_miireg16 &= ~LMC_MII16_T1_CRC; sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_16; sc->lmc_crcSize = LMC_CTL_CRC_BYTESIZE_2; } lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); } /* * 1 == internal, 0 == external */ static void lmc_t1_set_clock (lmc_softc_t * const sc, int ie) { if (ie == LMC_CTL_CLOCK_SOURCE_EXT) { sc->lmc_gpio &= ~(LMC_GEP_SSI_TXCLOCK); LMC_CSR_WRITE (sc, csr_gp, sc->lmc_gpio); sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_EXT; printf (LMC_PRINTF_FMT ": clock external\n", LMC_PRINTF_ARGS); } else { sc->lmc_gpio |= LMC_GEP_SSI_TXCLOCK; LMC_CSR_WRITE (sc, csr_gp, sc->lmc_gpio); sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_INT; printf (LMC_PRINTF_FMT ": clock internal\n", LMC_PRINTF_ARGS); } } static void lmc_t1_watchdog(lmc_softc_t * const sc) { int t1stat; /* read alarm 1 status (receive) */ t1stat = lmc_t1_read (sc, 0x47); /* blue alarm -- RAIS */ if (t1stat & 0x08) { if (sc->lmc_blue != 1) printf ("%s: AIS Received\n", sc->lmc_xname); lmc_led_on (sc, LMC_DS3_LED1 | LMC_DS3_LED2); sc->lmc_blue = 1; } else { if (sc->lmc_blue == 1) printf ("%s: AIS ok\n", sc->lmc_xname); lmc_led_off (sc, LMC_DS3_LED1); lmc_led_on (sc, LMC_DS3_LED2); sc->lmc_blue = 0; } /* Red alarm -- LOS | LOF */ if (t1stat & 0x04) { /* Only print the error once */ if (sc->lmc_red != 1) printf ("%s: Red Alarm\n", sc->lmc_xname); lmc_led_on (sc, LMC_DS3_LED2 | LMC_DS3_LED3); sc->lmc_red = 1; } else { if (sc->lmc_red == 1) printf ("%s: Red Alarm ok\n", sc->lmc_xname); lmc_led_off (sc, LMC_DS3_LED3); lmc_led_on (sc, LMC_DS3_LED2); sc->lmc_red = 0; } /* check for Receive Multiframe Yellow Alarm * Ignore Receive Yellow Alarm */ if (t1stat & 0x80) { if (sc->lmc_yel != 1) { printf ("%s: Receive Yellow Alarm\n", sc->lmc_xname); } lmc_led_on (sc, LMC_DS3_LED0 | LMC_DS3_LED2); sc->lmc_yel = 1; } else { if (sc->lmc_yel == 1) printf ("%s: Yellow Alarm ok\n", sc->lmc_xname); lmc_led_off (sc, LMC_DS3_LED0); lmc_led_on (sc, LMC_DS3_LED2); sc->lmc_yel = 0; } } static void lmc_set_protocol(lmc_softc_t * const sc, lmc_ctl_t *ctl) { if (ctl == 0) { sc->ictl.keepalive_onoff = LMC_CTL_ON; return; } if (ctl->keepalive_onoff != sc->ictl.keepalive_onoff) { switch (ctl->keepalive_onoff) { case LMC_CTL_ON: printf(LMC_PRINTF_FMT ": enabling keepalive\n", LMC_PRINTF_ARGS); sc->ictl.keepalive_onoff = LMC_CTL_ON; sc->lmc_sppp.pp_flags = PP_CISCO | PP_KEEPALIVE; break; case LMC_CTL_OFF: printf(LMC_PRINTF_FMT ": disabling keepalive\n", LMC_PRINTF_ARGS); sc->ictl.keepalive_onoff = LMC_CTL_OFF; sc->lmc_sppp.pp_flags = PP_CISCO; } } }