diff options
Diffstat (limited to 'sys/i4b/layer1/i4b_elsa_pcc16.c')
| -rw-r--r-- | sys/i4b/layer1/i4b_elsa_pcc16.c | 392 |
1 files changed, 392 insertions, 0 deletions
diff --git a/sys/i4b/layer1/i4b_elsa_pcc16.c b/sys/i4b/layer1/i4b_elsa_pcc16.c new file mode 100644 index 0000000..84910e8 --- /dev/null +++ b/sys/i4b/layer1/i4b_elsa_pcc16.c @@ -0,0 +1,392 @@ +/* + * Copyright (c) 1999 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. + * + * 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. + * + *--------------------------------------------------------------------------- + * + * isic - I4B Siemens ISDN Chipset Driver for ELSA MicroLink ISDN/PCC-16 + * ===================================================================== + * + * $Id: i4b_elsa_pcc16.c,v 1.2 1999/12/13 21:25:26 hm Exp $ + * + * $FreeBSD$ + * + * last edit-date: [Mon Dec 13 21:59:36 1999] + * + *---------------------------------------------------------------------------*/ + +#include "isic.h" +#include "opt_i4b.h" + +#if (NISIC > 0) && defined(ELSA_PCC16) + +#include <sys/param.h> +#include <sys/kernel.h> +#include <sys/systm.h> +#include <sys/mbuf.h> +#include <sys/socket.h> +#include <net/if.h> + +#include <sys/ioccom.h> +#include <machine/clock.h> + +#include <machine/i4b_debug.h> +#include <machine/i4b_ioctl.h> + +#include <i4b/include/i4b_global.h> +#include <i4b/include/i4b_l1l2.h> +#include <i4b/include/i4b_mbuf.h> + +#include <i4b/layer1/i4b_l1.h> +#include <i4b/layer1/i4b_isac.h> +#include <i4b/layer1/i4b_hscx.h> + +static void i4b_epcc16_clrirq(struct l1_softc *sc); + +/* masks for register encoded in base addr */ + +#define ELSA_BASE_MASK 0x0ffff +#define ELSA_OFF_MASK 0xf0000 + +/* register id's to be encoded in base addr */ + +#define ELSA_IDISAC 0x00000 +#define ELSA_IDHSCXA 0x10000 +#define ELSA_IDHSCXB 0x20000 + +/* offsets from base address */ + +#define ELSA_OFF_ISAC 0x00 +#define ELSA_OFF_HSCX 0x02 +#define ELSA_OFF_OFF 0x03 +#define ELSA_OFF_CTRL 0x04 +#define ELSA_OFF_CFG 0x05 +#define ELSA_OFF_TIMR 0x06 +#define ELSA_OFF_IRQ 0x07 + +/* control register (write access) */ + +#define ELSA_CTRL_LED_YELLOW 0x02 +#define ELSA_CTRL_LED_GREEN 0x08 +#define ELSA_CTRL_RESET 0x20 +#define ELSA_CTRL_TIMEREN 0x80 +#define ELSA_CTRL_SECRET 0x50 + +/*---------------------------------------------------------------------------* + * ELSA MicroLink ISDN/PCC-16 clear IRQ routine + *---------------------------------------------------------------------------*/ +static void +i4b_epcc16_clrirq(struct l1_softc *sc) +{ + 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]); + bus_space_write_1(t, h, ELSA_OFF_IRQ, 0); +} + +/*---------------------------------------------------------------------------* + * ELSA MicroLink ISDN/PCC-16 ISAC get fifo routine + *---------------------------------------------------------------------------*/ +static void +epcc16_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, ELSA_OFF_OFF, 0); + bus_space_read_multi_1(t, h, ELSA_OFF_ISAC, buf, size); + break; + case ISIC_WHAT_HSCXA: + bus_space_write_1(t, h, ELSA_OFF_OFF, 0); + bus_space_read_multi_1(t, h, ELSA_OFF_HSCX, buf, size); + break; + case ISIC_WHAT_HSCXB: + bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40); + bus_space_read_multi_1(t, h, ELSA_OFF_HSCX, buf, size); + break; + } +} + +/*---------------------------------------------------------------------------* + * ELSA MicroLink ISDN/PCC-16 ISAC put fifo routine + *---------------------------------------------------------------------------*/ +static void +epcc16_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, ELSA_OFF_OFF, 0); + bus_space_write_multi_1(t, h, ELSA_OFF_ISAC, buf, size); + break; + case ISIC_WHAT_HSCXA: + bus_space_write_1(t, h, ELSA_OFF_OFF, 0); + bus_space_write_multi_1(t, h, ELSA_OFF_HSCX, buf, size); + break; + case ISIC_WHAT_HSCXB: + bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40); + bus_space_write_multi_1(t, h, ELSA_OFF_HSCX, buf, size); + break; + } +} + +/*---------------------------------------------------------------------------* + * ELSA MicroLink ISDN/PCC-16 ISAC put register routine + *---------------------------------------------------------------------------*/ +static void +epcc16_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, ELSA_OFF_OFF, offs); + bus_space_write_1(t, h, ELSA_OFF_ISAC, data); + break; + case ISIC_WHAT_HSCXA: + bus_space_write_1(t, h, ELSA_OFF_OFF, offs); + bus_space_write_1(t, h, ELSA_OFF_HSCX, data); + break; + case ISIC_WHAT_HSCXB: + bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40+offs); + bus_space_write_1(t, h, ELSA_OFF_HSCX, data); + break; + } +} + +/*---------------------------------------------------------------------------* + * ELSA MicroLink ISDN/PCC-16 ISAC get register routine + *---------------------------------------------------------------------------*/ +static u_int8_t +epcc16_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, ELSA_OFF_OFF, offs); + return bus_space_read_1(t, h, ELSA_OFF_ISAC); + case ISIC_WHAT_HSCXA: + bus_space_write_1(t, h, ELSA_OFF_OFF, offs); + return bus_space_read_1(t, h, ELSA_OFF_HSCX); + case ISIC_WHAT_HSCXB: + bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40+offs); + return bus_space_read_1(t, h, ELSA_OFF_HSCX); + } + return 0; +} + +/*---------------------------------------------------------------------------* + * isic_detach_Epcc16 - detach for ELSA MicroLink ISDN/PCC-16 + *---------------------------------------------------------------------------*/ +static void +isic_detach_Epcc16(device_t dev) +{ + struct l1_softc *sc = &l1_sc[device_get_unit(dev)]; + + if ( sc->sc_resources.irq ) + { + bus_teardown_intr(dev,sc->sc_resources.irq, + (void(*)(void *))isicintr); + bus_release_resource(dev,SYS_RES_IRQ, + sc->sc_resources.irq_rid, + sc->sc_resources.irq); + sc->sc_resources.irq = 0; + } + + if ( sc->sc_resources.io_base[0] ) { + bus_release_resource(dev,SYS_RES_IOPORT, + sc->sc_resources.io_rid[0], + sc->sc_resources.io_base[0]); + sc->sc_resources.io_base[0] = 0; + } +} + +/*---------------------------------------------------------------------------* + * isic_probe_Epcc16 - probe for ELSA MicroLink ISDN/PCC-16 + *---------------------------------------------------------------------------*/ +int +isic_probe_Epcc16(device_t dev) +{ + size_t unit = device_get_unit(dev); /* get unit */ + struct l1_softc *sc = 0; /* pointer to softc */ + void *ih = 0; /* dummy */ + + /* check max unit range */ + if(unit >= ISIC_MAXUNIT) + { + printf("isic%d: Error, unit %d >= ISIC_MAXUNIT for ELSA PCC-16!\n", + unit, unit); + return(ENXIO); + } + + sc = &l1_sc[unit]; /* get pointer to softc */ + + sc->sc_unit = unit; /* set unit */ + + sc->sc_flags = FLAG_ELSA_PCC16; /* set flags */ + + /* 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 ELSA PCC-16.\n", + unit); + return(ENXIO); + } + + /* check if we got an iobase */ + + sc->sc_port = rman_get_start(sc->sc_resources.io_base[0]); + + switch(sc->sc_port) + { + case 0x160: + case 0x170: + case 0x260: + case 0x360: + break; + default: + printf("isic%d: Error, invalid iobase 0x%x specified for ELSA MicroLink ISDN/PCC-16!\n", + unit, sc->sc_port); + isic_detach_Epcc16(dev); + return(ENXIO); + break; + } + + /* setup access routines */ + + sc->clearirq = i4b_epcc16_clrirq; + sc->readreg = epcc16_read_reg; + sc->writereg = epcc16_write_reg; + + sc->readfifo = epcc16_read_fifo; + sc->writefifo = epcc16_write_fifo; + + /* setup card type */ + + sc->sc_cardtyp = CARD_TYPEP_ELSAQS1ISA; + + /* 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 the ELSA PCC-16 + * is 0x05 ( = version 2.1 ) in the least significant bits. + */ + + if( ((HSCX_READ(0, H_VSTR) & 0xf) != 0x5) || + ((HSCX_READ(1, H_VSTR) & 0xf) != 0x5) ) + { + printf("isic%d: HSCX VSTR test failed for ELSA MicroLink ISDN/PCC-16\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_Epcc16(dev); + 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.\n",unit); + isic_detach_Epcc16(dev); + return ENXIO; + } + + /* get the irq number */ + sc->sc_irq = rman_get_start(sc->sc_resources.irq); + + /* check IRQ validity */ + switch(sc->sc_irq) + { + case 2: + case 9: + case 3: + case 5: + case 10: + case 11: + case 15: + break; + + default: + printf("isic%d: Error, invalid IRQ [%d] specified for ELSA MicroLink ISDN/PCC-16!\n", + unit, sc->sc_irq); + isic_detach_Epcc16(dev); + return(ENXIO); + break; + } + + /* register interupt routine */ + bus_setup_intr(dev,sc->sc_resources.irq,INTR_TYPE_NET, + (void(*)(void *))(isicintr), + sc,&ih); + + + return (0); +} + +/*---------------------------------------------------------------------------* + * isic_attach_Epcc16 - attach for ELSA MicroLink ISDN/PCC-16 + *---------------------------------------------------------------------------*/ +int +isic_attach_Epcc16(device_t dev) +{ + int 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]); + + u_char byte = ELSA_CTRL_SECRET; + + byte &= ~ELSA_CTRL_RESET; + bus_space_write_1(t, h, ELSA_OFF_CTRL, byte); + DELAY(20); + byte |= ELSA_CTRL_RESET; + bus_space_write_1(t, h, ELSA_OFF_CTRL, byte); + + DELAY(20); + bus_space_write_1(t, h, ELSA_OFF_IRQ, 0xff); + + return 0; +} + +#endif /* (NISIC > 0) && defined(ELSA_PCC16) */ |
