/* * Copyright (c) 1996 Andrew Gordon. All rights reserved. * * Copyright (c) 1997, 2001 Hellmuth Michaelis. 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. 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. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * 4. Altered versions must be plainly marked as such, and must not be * misrepresented as being the original software and/or documentation. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * *--------------------------------------------------------------------------- * * i4b_avm_a1.c - AVM A1/Fritz passive card driver for isdn4bsd * ------------------------------------------------------------ * * $FreeBSD$ * * last edit-date: [Wed Jan 24 09:25:23 2001] * *---------------------------------------------------------------------------*/ #include "opt_i4b.h" #if defined(AVM_A1) #include #include #include #include #include #include #include #include #include /*---------------------------------------------------------------------------* * AVM A1 and AVM Fritz! Card special registers *---------------------------------------------------------------------------*/ #define AVM_CONF_REG 0x1800 /* base offset for config register */ #define AVM_CONF_IRQ 0x1801 /* base offset for IRQ register */ /* config register write */ #define AVM_CONF_WR_RESET 0x01 /* 1 = RESET ISAC and HSCX */ #define AVM_CONF_WR_CCL 0x02 /* 1 = clear counter low nibble */ #define AVM_CONF_WR_CCH 0x04 /* 1 = clear counter high nibble */ #define AVM_CONF_WR_IRQEN 0x08 /* 1 = enable IRQ */ #define AVM_CONF_WR_TEST 0x10 /* test bit */ /* config register read */ #define AVM_CONF_RD_IIRQ 0x01 /* 0 = ISAC IRQ active */ #define AVM_CONF_RD_HIRQ 0x02 /* 0 = HSCX IRQ active */ #define AVM_CONF_RD_CIRQ 0x04 /* 0 = counter IRQ active */ #define AVM_CONF_RD_ZER1 0x08 /* unused, always read 0 */ #define AVM_CONF_RD_TEST 0x10 /* test bit read back */ #define AVM_CONF_RD_ZER2 0x20 /* unused, always read 0 */ #define AVM_ISAC_R_OFFS (0x1400-0x20) #define AVM_HSCXA_R_OFFS (0x400-0x20) #define AVM_HSCXB_R_OFFS (0xc00-0x20) #define AVM_ISAC_F_OFFS (0x1400-0x20-0x3e0) #define AVM_HSCXA_F_OFFS (0x400-0x20-0x3e0) #define AVM_HSCXB_F_OFFS (0xc00-0x20-0x3e0) /*---------------------------------------------------------------------------* * AVM read fifo routine *---------------------------------------------------------------------------*/ static void avma1_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[what+4]); bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+4]); bus_space_read_multi_1(t, h, 0, buf, size); } /*---------------------------------------------------------------------------* * AVM write fifo routine *---------------------------------------------------------------------------*/ static void avma1_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[what+4]); bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+4]); bus_space_write_multi_1(t, h, 0, (u_int8_t*)buf, size); } /*---------------------------------------------------------------------------* * AVM write register routine *---------------------------------------------------------------------------*/ static void avma1_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[what+1]); bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+1]); bus_space_write_1(t, h, offs, data); } /*---------------------------------------------------------------------------* * AVM read register routine *---------------------------------------------------------------------------*/ static u_int8_t avma1_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[what+1]); bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+1]); return bus_space_read_1(t, h, offs); } /*---------------------------------------------------------------------------* * allocate an io port *---------------------------------------------------------------------------*/ static int isic_alloc_port(device_t dev, int rid, u_int base, u_int len) { size_t unit = device_get_unit(dev); struct l1_softc *sc = &l1_sc[unit]; sc->sc_resources.io_rid[rid] = rid; bus_set_resource(dev, SYS_RES_IOPORT, rid, base, len); if(!(sc->sc_resources.io_base[rid] = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->sc_resources.io_rid[rid], 0ul, ~0ul, 1, RF_ACTIVE))) { printf("isic%d: Error, failed to reserve io #%d!\n", unit, rid); isic_detach_common(dev); return(ENXIO); } return(0); } /*---------------------------------------------------------------------------* * isic_probe_avma1 - probe for AVM A1 and compatibles *---------------------------------------------------------------------------*/ int isic_probe_avma1(device_t dev) { size_t unit = device_get_unit(dev); /* get unit */ struct l1_softc *sc = 0; /* pointer to softc */ void *ih = 0; /* dummy */ bus_space_tag_t t; /* bus things */ bus_space_handle_t h; u_char savebyte; u_char byte; /* check max unit range */ if(unit >= ISIC_MAXUNIT) { printf("isic%d: Error, unit %d >= ISIC_MAXUNIT for AVM A1/Fritz!\n", unit, unit); return(ENXIO); } sc = &l1_sc[unit]; /* get pointer to softc */ sc->sc_unit = unit; /* set unit */ /* see if an io base was supplied */ 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 get iobase for AVM A1/Fritz!\n", unit); return(ENXIO); } /* set io base */ sc->sc_port = rman_get_start(sc->sc_resources.io_base[0]); /* release io base */ bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_resources.io_rid[0], sc->sc_resources.io_base[0]); switch(sc->sc_port) { case 0x200: case 0x240: case 0x300: case 0x340: break; default: printf("isic%d: Error, invalid iobase 0x%x specified for AVM A1/Fritz!\n", unit, sc->sc_port); return(ENXIO); break; } if(isic_alloc_port(dev, 0, sc->sc_port+AVM_CONF_REG, 0x20)) return(ENXIO); if(isic_alloc_port(dev, 1, sc->sc_port+AVM_ISAC_R_OFFS, 0x20)) return(ENXIO); if(isic_alloc_port(dev, 2, sc->sc_port+AVM_HSCXA_R_OFFS, 0x20)) return(ENXIO); if(isic_alloc_port(dev, 3, sc->sc_port+AVM_HSCXB_R_OFFS, 0x20)) return(ENXIO); if(isic_alloc_port(dev, 4, sc->sc_port+AVM_ISAC_F_OFFS, 0x20)) return(ENXIO); if(isic_alloc_port(dev, 5, sc->sc_port+AVM_HSCXA_F_OFFS, 0x20)) return(ENXIO); if(isic_alloc_port(dev, 6, sc->sc_port+AVM_HSCXB_F_OFFS, 0x20)) return(ENXIO); /* 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 get an irq for AVM A1/Fritz!\n",unit); isic_detach_common(dev); return ENXIO; } /* get the irq number */ sc->sc_irq = rman_get_start(sc->sc_resources.irq); /* register interupt routine */ bus_setup_intr(dev, sc->sc_resources.irq, INTR_TYPE_NET, (void(*)(void *))(isicintr), sc, &ih); /* check IRQ validity */ switch(sc->sc_irq) { case 3: case 4: case 5: case 6: case 7: case 8: case 10: case 11: case 12: case 13: case 14: case 15: break; default: printf("isic%d: Error, invalid IRQ [%d] specified for AVM A1/Fritz!\n", unit, sc->sc_irq); isic_detach_common(dev); return(ENXIO); break; } sc->clearirq = NULL; sc->readreg = avma1_read_reg; sc->writereg = avma1_write_reg; sc->readfifo = avma1_read_fifo; sc->writefifo = avma1_write_fifo; /* setup card type */ sc->sc_cardtyp = CARD_TYPEP_AVMA1; /* setup IOM bus type */ sc->sc_bustyp = BUS_TYPE_IOM2; sc->sc_ipac = 0; sc->sc_bfifolen = HSCX_FIFO_LEN; /* * Read HSCX A/B VSTR. * Expected value for AVM A1 is 0x04 or 0x05 and for the * AVM Fritz!Card is 0x05 in the least significant bits. */ if( (((HSCX_READ(0, H_VSTR) & 0xf) != 0x5) && ((HSCX_READ(0, H_VSTR) & 0xf) != 0x4)) || (((HSCX_READ(1, H_VSTR) & 0xf) != 0x5) && ((HSCX_READ(1, H_VSTR) & 0xf) != 0x4)) ) { printf("isic%d: HSCX VSTR test failed for AVM A1/Fritz\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)); return(ENXIO); } /* AVM A1 or Fritz! control register bits: */ /* read write */ /* 0x01 hscx irq* RESET */ /* 0x02 isac irq* clear counter1 */ /* 0x04 counter irq* clear counter2 */ /* 0x08 always 0 irq enable */ /* 0x10 read test bit set test bit */ /* 0x20 always 0 unused */ /* * XXX the following test may be destructive, to prevent the * worst case, we save the byte first, and in case the test * fails, we write back the saved byte ..... */ t = rman_get_bustag(sc->sc_resources.io_base[0]); h = rman_get_bushandle(sc->sc_resources.io_base[0]); savebyte = bus_space_read_1(t, h, 0); /* write low to test bit */ bus_space_write_1(t, h, 0, 0x00); /* test bit and next higher and lower bit must be 0 */ if((byte = bus_space_read_1(t, h, 0) & 0x38) != 0x00) { printf("isic%d: Error, probe-1 failed, 0x%02x should be 0x00 for AVM A1/Fritz!\n", unit, byte); bus_space_write_1(t, h, 0, savebyte); return(ENXIO); } /* write high to test bit */ bus_space_write_1(t, h, 0, 0x10); /* test bit must be high, next higher and lower bit must be 0 */ if((byte = bus_space_read_1(t, h, 0) & 0x38) != 0x10) { printf("isic%d: Error, probe-2 failed, 0x%02x should be 0x10 for AVM A1/Fritz!\n", unit, byte); bus_space_write_1(t, h, 0, savebyte); return(ENXIO); } return(0); } /*---------------------------------------------------------------------------* * isic_attach_avma1 - attach AVM A1 and compatibles *---------------------------------------------------------------------------*/ int isic_attach_avma1(device_t dev) { size_t unit = device_get_unit(dev); 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]); /* reset ISAC/HSCX */ bus_space_write_1(t, h, 0, 0x00); DELAY(SEC_DELAY / 10); bus_space_write_1(t, h, 0, AVM_CONF_WR_RESET); DELAY(SEC_DELAY / 10); bus_space_write_1(t, h, 0, 0x00); DELAY(SEC_DELAY / 10); /* setup IRQ */ bus_space_write_1(t, h, 1, sc->sc_irq); DELAY(SEC_DELAY / 10); /* enable IRQ, disable counter IRQ */ bus_space_write_1(t, h, 0, AVM_CONF_WR_IRQEN | AVM_CONF_WR_CCH | AVM_CONF_WR_CCL); DELAY(SEC_DELAY / 10); return(0); } #endif /* defined(AVM_A1) */