/* * Copyright (c) 1998, 1999 Martin Husemann * All rights reserved. * * 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. The name of the author may not be used to endorse or promote products * derived from this software withough specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. * *--------------------------------------------------------------------------- * * i4b_itk_ix1.c - ITK ix1 micro passive card driver for isdn4bsd * -------------------------------------------------------------- * * $Id: i4b_itk_ix1.c,v 1.1 2000/08/24 14:08:41 hm Exp $ * * last edit-date: [Thu Aug 24 15:44:33 2000] * * $FreeBSD$ * *--------------------------------------------------------------------------- * * The ITK ix1 micro ISDN card is an ISA card with one region * of four io ports mapped and a fixed irq all jumpered on the card. * Access to the board is straight forward and simmilar to * the ELSA and DYNALINK cards. If a PCI version of this card * exists all we need is probably a pci-bus attachment, all * this low level routines should work imediately. * * To reset the card: * - write 0x01 to ITK_CONFIG * - wait >= 10 ms * - write 0x00 to ITK_CONFIG * * To read or write data: * - write address to ITK_ALE port * - read data from or write data to ITK_ISAC_DATA port or ITK_HSCX_DATA port * The two HSCX channel registers are offset by HSCXA (0x00) and HSCXB (0x40). * * The probe routine was derived by trial and error from a representative * sample of two cards ;-) The standard way (checking HSCX versions) * was extended by reading a zero from a non existant HSCX register (register * 0xff). Reading the config register gives varying results, so this doesn't * seem to be used as an id register (like the Teles S0/16.3). * * If the probe fails for your card use "options ITK_PROBE_DEBUG" to get * additional debug output. * *---------------------------------------------------------------------------*/ #include "isic.h" #include "opt_i4b.h" #if NISIC > 0 && defined(ITKIX1) #include #include #include #include #include #include #include #include #include /* Register offsets */ #define ITK_ISAC_DATA 0 #define ITK_HSCX_DATA 1 #define ITK_ALE 2 #define ITK_CONFIG 3 /* Size of IO range to allocate for this card */ #define ITK_IO_SIZE 4 /* Register offsets for the two HSCX channels */ #define HSCXA 0 #define HSCXB 0x40 static void itkix1_read_fifo(struct l1_softc *sc, int what, void *buf, size_t size) { bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]); bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]); switch (what) { case ISIC_WHAT_ISAC: bus_space_write_1(t, h, ITK_ALE, 0); bus_space_read_multi_1(t, h, ITK_ISAC_DATA, buf, size); break; case ISIC_WHAT_HSCXA: bus_space_write_1(t, h, ITK_ALE, HSCXA); bus_space_read_multi_1(t, h, ITK_HSCX_DATA, buf, size); break; case ISIC_WHAT_HSCXB: bus_space_write_1(t, h, ITK_ALE, HSCXB); bus_space_read_multi_1(t, h, ITK_HSCX_DATA, buf, size); break; } } static void itkix1_write_fifo(struct l1_softc *sc, int what, void *buf, size_t size) { bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]); bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]); switch (what) { case ISIC_WHAT_ISAC: bus_space_write_1(t, h, ITK_ALE, 0); bus_space_write_multi_1(t, h, ITK_ISAC_DATA, (u_int8_t*)buf, size); break; case ISIC_WHAT_HSCXA: bus_space_write_1(t, h, ITK_ALE, HSCXA); bus_space_write_multi_1(t, h, ITK_HSCX_DATA, (u_int8_t*)buf, size); break; case ISIC_WHAT_HSCXB: bus_space_write_1(t, h, ITK_ALE, HSCXB); bus_space_write_multi_1(t, h, ITK_HSCX_DATA, (u_int8_t*)buf, size); break; } } static void itkix1_write_reg(struct l1_softc *sc, int what, bus_size_t offs, u_int8_t data) { bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]); bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]); switch (what) { case ISIC_WHAT_ISAC: bus_space_write_1(t, h, ITK_ALE, offs); bus_space_write_1(t, h, ITK_ISAC_DATA, data); break; case ISIC_WHAT_HSCXA: bus_space_write_1(t, h, ITK_ALE, HSCXA+offs); bus_space_write_1(t, h, ITK_HSCX_DATA, data); break; case ISIC_WHAT_HSCXB: bus_space_write_1(t, h, ITK_ALE, HSCXB+offs); bus_space_write_1(t, h, ITK_HSCX_DATA, data); break; } } static u_int8_t itkix1_read_reg(struct l1_softc *sc, int what, bus_size_t offs) { bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]); bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]); switch (what) { case ISIC_WHAT_ISAC: bus_space_write_1(t, h, ITK_ALE, offs); return bus_space_read_1(t, h, ITK_ISAC_DATA); case ISIC_WHAT_HSCXA: bus_space_write_1(t, h, ITK_ALE, HSCXA+offs); return bus_space_read_1(t, h, ITK_HSCX_DATA); case ISIC_WHAT_HSCXB: bus_space_write_1(t, h, ITK_ALE, HSCXB+offs); return bus_space_read_1(t, h, ITK_HSCX_DATA); } return 0; } /* * Probe for card */ int isic_probe_itkix1(device_t dev) { size_t unit = device_get_unit(dev); /* get unit */ struct l1_softc *sc = 0; /* softc */ void *ih = 0; /* dummy */ bus_space_tag_t t; /* bus things */ bus_space_handle_t h; u_int8_t hd, hv1, hv2, saveale; int ret; #if defined(ITK_PROBE_DEBUG) printf("Checking unit %u\n", unit); #endif /* check max unit range */ if(unit >= ISIC_MAXUNIT) { printf("isic%d: Error, unit %d >= ISIC_MAXUNIT for ITK IX1!\n", unit, unit); return ENXIO; } sc = &l1_sc[unit]; /* get pointer to softc */ sc->sc_unit = unit; /* set unit */ sc->sc_flags = FLAG_ITK_IX1; /* set flags */ #if defined(ITK_PROBE_DEBUG) printf("Allocating io base..."); #endif if(!(sc->sc_resources.io_base[0] = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->sc_resources.io_rid[0], 0ul, ~0ul, 1, RF_ACTIVE))) { printf("isic%d: Could not allocate i/o port for ITK IX1.\n", unit); return ENXIO; } #if defined(ITK_PROBE_DEBUG) printf("done.\n"); #endif sc->sc_port = rman_get_start(sc->sc_resources.io_base[0]); t = rman_get_bustag(sc->sc_resources.io_base[0]); h = rman_get_bushandle(sc->sc_resources.io_base[0]); #if defined(ITK_PROBE_DEBUG) printf("Allocating irq..."); #endif /* get our irq */ if(!(sc->sc_resources.irq = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->sc_resources.irq_rid, 0ul, ~0ul, 1, RF_ACTIVE))) { printf("isic%d: Could not allocate irq for ITK IX1.\n", unit); bus_release_resource(dev,SYS_RES_IOPORT, sc->sc_resources.io_rid[0], sc->sc_resources.io_base[0]); return ENXIO; } #if defined(ITK_PROBE_DEBUG) printf("done.\n"); #endif /* get the irq number */ sc->sc_irq = rman_get_start(sc->sc_resources.irq); #if defined(ITK_PROBE_DEBUG) printf("Setting up access routines..."); #endif /* setup access routines */ sc->clearirq = NULL; sc->readreg = itkix1_read_reg; sc->writereg = itkix1_write_reg; sc->readfifo = itkix1_read_fifo; sc->writefifo = itkix1_write_fifo; /* setup card type */ sc->sc_cardtyp = CARD_TYPEP_ITKIX1; /* setup IOM bus type */ sc->sc_bustyp = BUS_TYPE_IOM2; sc->sc_ipac = 0; sc->sc_bfifolen = HSCX_FIFO_LEN; #if defined(ITK_PROBE_DEBUG) printf("done.\n"); #endif /* register interupt routine */ #if defined(ITK_PROBE_DEBUG) printf("Setting up access interupt..."); #endif bus_setup_intr(dev, sc->sc_resources.irq, INTR_TYPE_NET, (void(*)(void *))(isicintr), sc, &ih); #if defined(ITK_PROBE_DEBUG) printf("done.\n"); printf("Doing probe stuff..."); #endif /* save old value of this port, we're stomping over it */ saveale = bus_space_read_1(t, h, ITK_ALE); /* select invalid register */ bus_space_write_1(t, h, ITK_ALE, 0xff); /* get HSCX data for this non existent register */ hd = bus_space_read_1(t, h, ITK_HSCX_DATA); /* get HSCX version info */ bus_space_write_1(t, h, ITK_ALE, HSCXA + H_VSTR); hv1 = bus_space_read_1(t, h, ITK_HSCX_DATA); bus_space_write_1(t, h, ITK_ALE, HSCXB + H_VSTR); hv2 = bus_space_read_1(t, h, ITK_HSCX_DATA); ret = (hd == 0) && ((hv1 & 0x0f) == 0x05) && ((hv2 & 0x0f) == 0x05); /* succeed if version bits are OK and we got a zero from the * non existent register. we found verison 0x05 and 0x04 * out there... */ ret = (hd == 0) && (((hv1 & 0x0f) == 0x05) || ((hv1 & 0x0f) == 0x04)) && (((hv2 & 0x0f) == 0x05) || ((hv2 & 0x0f) == 0x04)); /* retstore save value if we fail (if we succeed the old value * has no meaning) */ if (!ret) bus_space_write_1(t, h, ITK_ALE, saveale); #if defined(ITK_PROBE_DEBUG) printf("done.\n"); printf("Doing second probe stuff..."); #endif hv1 = HSCX_READ(0, H_VSTR) & 0xf; hv2 = HSCX_READ(1, H_VSTR) & 0xf; /* Read HSCX A/B VSTR. Expected value is 0x05 (V2.1) or 0x04 (V2.0). */ if((hv1 != 0x05 && hv1 != 0x04) || (hv2 != 0x05 && hv2 != 0x04)) { printf("isic%d: HSCX VSTR test failed for ITK ix1 micro\n", unit); printf("isic%d: HSC0: VSTR: %#x\n", unit, HSCX_READ(0, H_VSTR)); printf("isic%d: HSC1: VSTR: %#x\n", unit, HSCX_READ(1, H_VSTR)); isic_detach_common(dev); return ENXIO; } #if defined(ITK_PROBE_DEBUG) printf("done.\n"); #endif #if defined(ITK_PROBE_DEBUG) printf("\nITK ix1 micro probe: hscx = 0x%02x, v1 = 0x%02x, v2 = 0x%02x, would have %s\n", hd, hv1, hv2, ret ? "succeeded" : "failed"); isic_detach_common(dev); return ENXIO; #else if ( ret ) { return 0; } else { isic_detach_common(dev); return ENXIO; } #endif } /* * Attach card */ int isic_attach_itkix1(device_t dev) { size_t unit = device_get_unit(dev); /* get unit */ struct l1_softc *sc = &l1_sc[unit]; bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]); bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]); /* setup access routines */ sc->clearirq = NULL; sc->readreg = itkix1_read_reg; sc->writereg = itkix1_write_reg; sc->readfifo = itkix1_read_fifo; sc->writefifo = itkix1_write_fifo; /* setup card type */ sc->sc_cardtyp = CARD_TYPEP_ITKIX1; /* setup IOM bus type */ sc->sc_bustyp = BUS_TYPE_IOM2; sc->sc_ipac = 0; sc->sc_bfifolen = HSCX_FIFO_LEN; bus_space_write_1(t, h, ITK_CONFIG, 1); DELAY(SEC_DELAY / 10); bus_space_write_1(t, h, ITK_CONFIG, 0); DELAY(SEC_DELAY / 10); return 0; } #endif /* ITKIX1 */