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938 lines
27 KiB
C
938 lines
27 KiB
C
/*
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* Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com)
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* Copyright (c) LAN Media Corporation 1998, 1999.
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* Copyright (c) 2000 Stephen Kiernan (sk-ports@vegamuse.org)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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* $Id: if_lmc_media.c,v 1.23 1999/03/01 15:12:24 explorer Exp $
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*/
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/*
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* For lack of a better place, put the SSI cable stuff here.
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*/
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char *lmc_ssi_cables[] = {
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"V.10/RS423", "EIA530A", "reserved", "X.21", "V.35",
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"EIA449/EIA530/V.36", "V.28/EIA232", "none", NULL
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};
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/*
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* protocol independent method.
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*/
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static void lmc_set_protocol(lmc_softc_t * const, lmc_ctl_t *);
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/*
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* media independent methods to check on media status, link, light LEDs,
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* etc.
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*/
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static void lmc_ds3_init(lmc_softc_t * const);
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static void lmc_ds3_default(lmc_softc_t * const);
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static void lmc_ds3_set_status(lmc_softc_t * const, lmc_ctl_t *);
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static void lmc_ds3_set_100ft(lmc_softc_t * const, int);
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static int lmc_ds3_get_link_status(lmc_softc_t * const);
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static void lmc_ds3_set_crc_length(lmc_softc_t * const, int);
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static void lmc_ds3_set_scram(lmc_softc_t * const, int);
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static void lmc_hssi_init(lmc_softc_t * const);
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static void lmc_hssi_default(lmc_softc_t * const);
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static void lmc_hssi_set_status(lmc_softc_t * const, lmc_ctl_t *);
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static void lmc_hssi_set_clock(lmc_softc_t * const, int);
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static int lmc_hssi_get_link_status(lmc_softc_t * const);
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static void lmc_hssi_set_link_status(lmc_softc_t * const, int);
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static void lmc_hssi_set_crc_length(lmc_softc_t * const, int);
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static void lmc_ssi_init(lmc_softc_t * const);
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static void lmc_ssi_default(lmc_softc_t * const);
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static void lmc_ssi_set_status(lmc_softc_t * const, lmc_ctl_t *);
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static void lmc_ssi_set_clock(lmc_softc_t * const, int);
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static void lmc_ssi_set_speed(lmc_softc_t * const, lmc_ctl_t *);
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static int lmc_ssi_get_link_status(lmc_softc_t * const);
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static void lmc_ssi_set_link_status(lmc_softc_t * const, int);
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static void lmc_ssi_set_crc_length(lmc_softc_t * const, int);
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static void lmc_t1_init(lmc_softc_t * const);
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static void lmc_t1_default(lmc_softc_t * const);
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static void lmc_t1_set_status(lmc_softc_t * const, lmc_ctl_t *);
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static int lmc_t1_get_link_status(lmc_softc_t * const);
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static void lmc_t1_set_circuit_type(lmc_softc_t * const, int);
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static void lmc_t1_set_crc_length(lmc_softc_t * const, int);
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static void lmc_dummy_set_1(lmc_softc_t * const, int);
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static void lmc_dummy_set2_1(lmc_softc_t * const, lmc_ctl_t *);
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static void write_av9110_bit(lmc_softc_t *, int);
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static void write_av9110(lmc_softc_t *, u_int32_t, u_int32_t, u_int32_t,
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u_int32_t, u_int32_t);
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lmc_media_t lmc_ds3_media = {
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lmc_ds3_init, /* special media init stuff */
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lmc_ds3_default, /* reset to default state */
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lmc_ds3_set_status, /* reset status to state provided */
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lmc_dummy_set_1, /* set clock source */
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lmc_dummy_set2_1, /* set line speed */
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lmc_ds3_set_100ft, /* set cable length */
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lmc_ds3_set_scram, /* set scrambler */
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lmc_ds3_get_link_status, /* get link status */
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lmc_dummy_set_1, /* set link status */
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lmc_ds3_set_crc_length, /* set CRC length */
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lmc_dummy_set_1
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};
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lmc_media_t lmc_hssi_media = {
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lmc_hssi_init, /* special media init stuff */
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lmc_hssi_default, /* reset to default state */
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lmc_hssi_set_status, /* reset status to state provided */
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lmc_hssi_set_clock, /* set clock source */
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lmc_dummy_set2_1, /* set line speed */
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lmc_dummy_set_1, /* set cable length */
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lmc_dummy_set_1, /* set scrambler */
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lmc_hssi_get_link_status, /* get link status */
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lmc_hssi_set_link_status, /* set link status */
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lmc_hssi_set_crc_length, /* set CRC length */
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lmc_dummy_set_1
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};
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lmc_media_t lmc_ssi_media = {
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lmc_ssi_init, /* special media init stuff */
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lmc_ssi_default, /* reset to default state */
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lmc_ssi_set_status, /* reset status to state provided */
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lmc_ssi_set_clock, /* set clock source */
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lmc_ssi_set_speed, /* set line speed */
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lmc_dummy_set_1, /* set cable length */
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lmc_dummy_set_1, /* set scrambler */
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lmc_ssi_get_link_status, /* get link status */
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lmc_ssi_set_link_status, /* set link status */
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lmc_ssi_set_crc_length, /* set CRC length */
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lmc_dummy_set_1
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};
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lmc_media_t lmc_t1_media = {
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lmc_t1_init, /* special media init stuff */
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lmc_t1_default, /* reset to default state */
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lmc_t1_set_status, /* reset status to state provided */
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lmc_dummy_set_1, /* set clock source */
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lmc_dummy_set2_1, /* set line speed */
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lmc_dummy_set_1, /* set cable length */
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lmc_dummy_set_1, /* set scrambler */
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lmc_t1_get_link_status, /* get link status */
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lmc_dummy_set_1, /* set link status */
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lmc_t1_set_crc_length, /* set CRC length */
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lmc_t1_set_circuit_type /* set T1 or E1 circuit type */
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};
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static void
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lmc_dummy_set_1(lmc_softc_t * const sc, int a)
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{
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}
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static void
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lmc_dummy_set2_1(lmc_softc_t * const sc, lmc_ctl_t *a)
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{
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}
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/*
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* HSSI methods
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*/
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static void
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lmc_hssi_init(lmc_softc_t * const sc)
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{
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sc->ictl.cardtype = LMC_CTL_CARDTYPE_LMC5200;
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lmc_gpio_mkoutput(sc, LMC_GEP_HSSI_CLOCK);
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}
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static void
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lmc_hssi_default(lmc_softc_t * const sc)
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{
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sc->lmc_miireg16 = LMC_MII16_LED_ALL;
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sc->lmc_media->set_link_status(sc, 0);
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sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_EXT);
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sc->lmc_media->set_crc_length(sc, LMC_CTL_CRC_LENGTH_16);
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}
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/*
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* Given a user provided state, set ourselves up to match it. This will
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* always reset the card if needed.
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*/
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static void
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lmc_hssi_set_status(lmc_softc_t * const sc, lmc_ctl_t *ctl)
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{
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if (ctl == NULL) {
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sc->lmc_media->set_clock_source(sc, sc->ictl.clock_source);
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lmc_set_protocol(sc, NULL);
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return;
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}
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/*
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* check for change in clock source
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*/
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if (ctl->clock_source && !sc->ictl.clock_source)
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sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_INT);
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else if (!ctl->clock_source && sc->ictl.clock_source)
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sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_EXT);
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lmc_set_protocol(sc, ctl);
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}
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/*
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* 1 == internal, 0 == external
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*/
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static void
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lmc_hssi_set_clock(lmc_softc_t * const sc, int ie)
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{
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if (ie == LMC_CTL_CLOCK_SOURCE_EXT) {
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sc->lmc_gpio |= LMC_GEP_HSSI_CLOCK;
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LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio);
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sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_EXT;
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printf(LMC_PRINTF_FMT ": clock external\n",
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LMC_PRINTF_ARGS);
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} else {
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sc->lmc_gpio &= ~(LMC_GEP_HSSI_CLOCK);
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LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio);
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sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_INT;
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printf(LMC_PRINTF_FMT ": clock internal\n",
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LMC_PRINTF_ARGS);
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}
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}
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/*
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* return hardware link status.
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* 0 == link is down, 1 == link is up.
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*/
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static int
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lmc_hssi_get_link_status(lmc_softc_t * const sc)
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{
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u_int16_t link_status;
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link_status = lmc_mii_readreg(sc, 0, 16);
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if ((link_status & LMC_MII16_HSSI_CA) == LMC_MII16_HSSI_CA)
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return 1;
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else
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return 0;
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}
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static void
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lmc_hssi_set_link_status(lmc_softc_t * const sc, int state)
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{
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if (state)
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sc->lmc_miireg16 |= LMC_MII16_HSSI_TA;
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else
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sc->lmc_miireg16 &= ~LMC_MII16_HSSI_TA;
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lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16);
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}
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/*
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* 0 == 16bit, 1 == 32bit
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*/
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static void
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lmc_hssi_set_crc_length(lmc_softc_t * const sc, int state)
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{
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if (state == LMC_CTL_CRC_LENGTH_32) {
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/* 32 bit */
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sc->lmc_miireg16 |= LMC_MII16_HSSI_CRC;
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sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_32;
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} else {
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/* 16 bit */
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sc->lmc_miireg16 &= ~LMC_MII16_HSSI_CRC;
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sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_16;
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}
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lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16);
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}
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/*
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* DS3 methods
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*/
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/*
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* Set cable length
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*/
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static void
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lmc_ds3_set_100ft(lmc_softc_t * const sc, int ie)
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{
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if (ie == LMC_CTL_CABLE_LENGTH_GT_100FT) {
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sc->lmc_miireg16 &= ~LMC_MII16_DS3_ZERO;
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sc->ictl.cable_length = LMC_CTL_CABLE_LENGTH_GT_100FT;
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} else if (ie == LMC_CTL_CABLE_LENGTH_LT_100FT) {
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sc->lmc_miireg16 |= LMC_MII16_DS3_ZERO;
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sc->ictl.cable_length = LMC_CTL_CABLE_LENGTH_LT_100FT;
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}
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lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16);
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}
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static void
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lmc_ds3_default(lmc_softc_t * const sc)
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{
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sc->lmc_miireg16 = LMC_MII16_LED_ALL;
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sc->lmc_media->set_link_status(sc, 0);
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sc->lmc_media->set_cable_length(sc, LMC_CTL_CABLE_LENGTH_LT_100FT);
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sc->lmc_media->set_scrambler(sc, LMC_CTL_OFF);
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sc->lmc_media->set_crc_length(sc, LMC_CTL_CRC_LENGTH_16);
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}
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/*
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* Given a user provided state, set ourselves up to match it. This will
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* always reset the card if needed.
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*/
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static void
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lmc_ds3_set_status(lmc_softc_t * const sc, lmc_ctl_t *ctl)
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{
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if (ctl == NULL) {
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sc->lmc_media->set_cable_length(sc, sc->ictl.cable_length);
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sc->lmc_media->set_scrambler(sc, sc->ictl.scrambler_onoff);
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lmc_set_protocol(sc, NULL);
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return;
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}
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/*
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* check for change in cable length setting
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*/
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if (ctl->cable_length && !sc->ictl.cable_length)
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lmc_ds3_set_100ft(sc, LMC_CTL_CABLE_LENGTH_GT_100FT);
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else if (!ctl->cable_length && sc->ictl.cable_length)
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lmc_ds3_set_100ft(sc, LMC_CTL_CABLE_LENGTH_LT_100FT);
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/*
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* Check for change in scrambler setting (requires reset)
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*/
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if (ctl->scrambler_onoff && !sc->ictl.scrambler_onoff)
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lmc_ds3_set_scram(sc, LMC_CTL_ON);
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else if (!ctl->scrambler_onoff && sc->ictl.scrambler_onoff)
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lmc_ds3_set_scram(sc, LMC_CTL_OFF);
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lmc_set_protocol(sc, ctl);
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}
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static void
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lmc_ds3_init(lmc_softc_t * const sc)
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{
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int i;
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sc->ictl.cardtype = LMC_CTL_CARDTYPE_LMC5245;
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/* writes zeros everywhere */
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for (i = 0 ; i < 21 ; i++) {
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lmc_mii_writereg(sc, 0, 17, i);
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lmc_mii_writereg(sc, 0, 18, 0);
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}
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/* set some essential bits */
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lmc_mii_writereg(sc, 0, 17, 1);
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lmc_mii_writereg(sc, 0, 18, 0x05); /* ser, xtx */
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lmc_mii_writereg(sc, 0, 17, 5);
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lmc_mii_writereg(sc, 0, 18, 0x80); /* emode */
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lmc_mii_writereg(sc, 0, 17, 14);
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lmc_mii_writereg(sc, 0, 18, 0x30); /* rcgen, tcgen */
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/* clear counters and latched bits */
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for (i = 0 ; i < 21 ; i++) {
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lmc_mii_writereg(sc, 0, 17, i);
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lmc_mii_readreg(sc, 0, 18);
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}
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}
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/*
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* 1 == DS3 payload scrambled, 0 == not scrambled
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*/
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static void
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lmc_ds3_set_scram(lmc_softc_t * const sc, int ie)
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{
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if (ie == LMC_CTL_ON) {
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sc->lmc_miireg16 |= LMC_MII16_DS3_SCRAM;
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sc->ictl.scrambler_onoff = LMC_CTL_ON;
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} else {
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sc->lmc_miireg16 &= ~LMC_MII16_DS3_SCRAM;
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sc->ictl.scrambler_onoff = LMC_CTL_OFF;
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}
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lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16);
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}
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/*
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* return hardware link status.
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* 0 == link is down, 1 == link is up.
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*/
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static int
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lmc_ds3_get_link_status(lmc_softc_t * const sc)
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{
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u_int16_t link_status;
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lmc_mii_writereg(sc, 0, 17, 7);
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link_status = lmc_mii_readreg(sc, 0, 18);
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if ((link_status & LMC_FRAMER_REG0_DLOS) == 0)
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return 1;
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else
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return 0;
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}
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/*
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* 0 == 16bit, 1 == 32bit
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*/
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static void
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lmc_ds3_set_crc_length(lmc_softc_t * const sc, int state)
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{
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if (state == LMC_CTL_CRC_LENGTH_32) {
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/* 32 bit */
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sc->lmc_miireg16 |= LMC_MII16_DS3_CRC;
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sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_32;
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} else {
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/* 16 bit */
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sc->lmc_miireg16 &= ~LMC_MII16_DS3_CRC;
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sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_16;
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}
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lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16);
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}
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/*
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* SSI methods
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*/
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static void
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lmc_ssi_init(lmc_softc_t * const sc)
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{
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u_int16_t mii17;
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int cable;
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sc->ictl.cardtype = LMC_CTL_CARDTYPE_LMC1000;
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mii17 = lmc_mii_readreg(sc, 0, 17);
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cable = (mii17 & LMC_MII17_SSI_CABLE_MASK) >> LMC_MII17_SSI_CABLE_SHIFT;
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sc->ictl.cable_type = cable;
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lmc_gpio_mkoutput(sc, LMC_GEP_SSI_TXCLOCK);
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}
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|
|
|
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, 0);
|
|
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);
|
|
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);
|
|
|
|
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;
|
|
|
|
if (ctl == NULL) {
|
|
av = &ictl->cardspec.ssi;
|
|
ictl->clock_rate = 100000;
|
|
av->f = ictl->clock_rate;
|
|
av->n = 8;
|
|
av->m = 25;
|
|
av->v = 0;
|
|
av->x = 0;
|
|
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.
|
|
*/
|
|
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);
|
|
}
|
|
|
|
static void
|
|
lmc_ssi_set_link_status(lmc_softc_t * const sc, int state)
|
|
{
|
|
if (state) {
|
|
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;
|
|
} else {
|
|
/* 16 bit */
|
|
sc->lmc_miireg16 &= ~LMC_MII16_SSI_CRC;
|
|
sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_16;
|
|
}
|
|
|
|
lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16);
|
|
}
|
|
|
|
/*
|
|
* These are bits to program the SSI frequency generator
|
|
*/
|
|
static 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_set_protocol(lmc_softc_t * const sc, lmc_ctl_t *ctl)
|
|
{
|
|
if (ctl == 0) {
|
|
sc->ictl.keepalive_onoff = LMC_CTL_ON;
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
#if 0
|
|
/* XXX future to be integtrated with if_lmc.c for alarms */
|
|
|
|
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);
|
|
}
|
|
#endif
|
|
|
|
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);
|
|
|
|
/* 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);
|
|
|
|
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 */
|
|
}
|
|
/* Turn on the transmiter */
|
|
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, 0);
|
|
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) & 0x00FF; /* Make sure it's 8 bits only */
|
|
|
|
/*
|
|
* 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( link_status & T1F_RAIS )
|
|
{ /* turn on blue LED */
|
|
lmc_led_on(sc, LMC_DS3_LED1);
|
|
}
|
|
else
|
|
{ /* turn off blue LED */
|
|
lmc_led_off(sc, LMC_DS3_LED1);
|
|
}
|
|
|
|
if( (sc->t1_alarm1_status & T1F_RAIS) != (link_status & T1F_RAIS) )
|
|
{
|
|
if( link_status & T1F_RAIS )
|
|
{ /* turn on blue LED */
|
|
printf(" link status: RAIS turn ON Blue %x\n", link_status ); /* DEBUG */
|
|
lmc_led_on(sc, LMC_DS3_LED1);
|
|
}
|
|
else
|
|
{ /* turn off blue LED */
|
|
printf(" link status: RAIS turn OFF Blue %x\n", 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
|
|
*/
|
|
if(link_status & T1F_RMYEL)
|
|
{
|
|
/* turn on yellow LED */
|
|
lmc_led_on(sc, LMC_DS3_LED0);
|
|
}
|
|
else
|
|
{
|
|
lmc_led_off(sc, LMC_DS3_LED0);
|
|
}
|
|
/* Yellow alarm indication */
|
|
if( (sc->t1_alarm1_status & T1F_RMYEL) !=
|
|
(link_status & T1F_RMYEL) )
|
|
{
|
|
if((link_status & T1F_RMYEL) == 0 )
|
|
{
|
|
printf(" link status: RYEL turn OFF Yellow %x\n", link_status ); /* DEBUG */
|
|
}
|
|
else
|
|
{
|
|
printf(" link status: RYEL turn ON Yellow %x\n", link_status ); /* DEBUG */
|
|
}
|
|
}
|
|
|
|
if (link_status & (T1F_RLOF | T1F_RLOS))
|
|
{
|
|
lmc_led_on(sc, LMC_DS3_LED3);
|
|
}
|
|
else
|
|
{
|
|
lmc_led_off(sc, LMC_DS3_LED3);
|
|
}
|
|
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);
|
|
}
|