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com_pcmcia.c revision 1.3 
      1 /*	$NetBSD: com_pcmcia.c,v 1.3 1998/02/01 23:50:52 marc Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1993, 1994, 1995, 1996
      5  *	Charles M. Hannum.  All rights reserved.
      6  * Copyright (c) 1991 The Regents of the University of California.
      7  * All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the University of
     20  *	California, Berkeley and its contributors.
     21  * 4. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  *	@(#)com.c	7.5 (Berkeley) 5/16/91
     38  */
     39 
     40 #include <sys/param.h>
     41 #include <sys/systm.h>
     42 #include <sys/ioctl.h>
     43 #include <sys/select.h>
     44 #include <sys/tty.h>
     45 #include <sys/proc.h>
     46 #include <sys/user.h>
     47 #include <sys/conf.h>
     48 #include <sys/file.h>
     49 #include <sys/uio.h>
     50 #include <sys/kernel.h>
     51 #include <sys/syslog.h>
     52 #include <sys/types.h>
     53 #include <sys/device.h>
     54 
     55 #include <machine/intr.h>
     56 #include <machine/bus.h>
     57 
     58 #include <dev/pcmcia/pcmciavar.h>
     59 #include <dev/pcmcia/pcmciareg.h>
     60 
     61 #include <dev/ic/comreg.h>
     62 #include <dev/ic/comvar.h>
     63 
     64 #include <dev/isa/isareg.h>
     65 
     66 #define PCMCIA_MANUFACTURER_3COM		0x101
     67 #define PCMCIA_PRODUCT_3COM_3C562		0x562
     68 
     69 #define PCMCIA_MANUFACTURER_MOTOROLA		0x109
     70 #define PCMCIA_PRODUCT_MOTOROLA_POWER144	0x105
     71 
     72 #define	PCMCIA_MANUFACTURER_IBM			0xa4
     73 #define	PCMCIA_PRODUCT_IBM_HOME_AND_AWAY	0x2e
     74 
     75 #ifdef __BROKEN_INDIRECT_CONFIG
     76 int com_pcmcia_match __P((struct device *, void *, void *));
     77 #else
     78 int com_pcmcia_match __P((struct device *, struct cfdata *, void *));
     79 #endif
     80 void com_pcmcia_attach __P((struct device *, struct device *, void *));
     81 void com_pcmcia_cleanup __P((void *));
     82 
     83 int com_pcmcia_enable __P((struct com_softc *));
     84 void com_pcmcia_disable __P((struct com_softc *));
     85 
     86 struct com_pcmcia_softc {
     87 	struct com_softc sc_com;		/* real "com" softc */
     88 
     89 	/* PCMCIA-specific goo */
     90 	struct pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o space info */
     91 	int sc_io_window;			/* our i/o window */
     92 	struct pcmcia_function *sc_pf;		/* our PCMCIA function */
     93 	void *sc_ih;				/* interrupt handler */
     94 };
     95 
     96 struct cfattach com_pcmcia_ca = {
     97 	sizeof(struct com_pcmcia_softc), com_pcmcia_match, com_pcmcia_attach
     98 };
     99 
    100 struct com_dev {
    101     char *name;
    102     int manufacturer;
    103     int product;
    104     char *cis1_info0;
    105     char *cis1_info1;
    106     int function;
    107 } com_devs[] = {
    108     { "3Com 3C562 Modem",
    109       PCMCIA_MANUFACTURER_3COM, PCMCIA_PRODUCT_3COM_3C562,
    110       NULL, NULL, 1 },
    111     { "Motorola Power 14.4 Modem",
    112       PCMCIA_MANUFACTURER_MOTOROLA, PCMCIA_PRODUCT_MOTOROLA_POWER144,
    113       NULL, NULL, 0 },
    114     { "IBM Home and Away Modem",
    115       PCMCIA_MANUFACTURER_IBM, PCMCIA_PRODUCT_IBM_HOME_AND_AWAY,
    116       NULL, NULL, 0 },
    117     { "Megahertz XJ2288 Modem",
    118       0xffffffff, 0xffff, "MEGAHERTZ", "XJ2288", 0 },
    119 };
    120 
    121 #define com_dev_match(card, fct, n) \
    122 (((((com_devs[(n)].cis1_info0 == NULL) && \
    123     (com_devs[(n)].cis1_info1 == NULL) && \
    124     (com_devs[(n)].manufacturer == (card)->manufacturer) && \
    125     (com_devs[(n)].product == (card)->product)) || \
    126    ((com_devs[(n)].cis1_info0) && \
    127     (com_devs[(n)].cis1_info1) && \
    128     (strcmp(com_devs[(n)].cis1_info0, (card)->cis1_info[0]) == 0) && \
    129     (strcmp(com_devs[(n)].cis1_info1, (card)->cis1_info[1]) == 0))) && \
    130   (com_devs[(n)].function == fct)) \
    131  ?&com_devs[(n)]:NULL)
    132 
    133 int
    134 com_pcmcia_match(parent, match, aux)
    135 	struct device *parent;
    136 #ifdef __BROKEN_INDIRECT_CONFIG
    137 	void *match;
    138 #else
    139 	struct cfdata *match;
    140 #endif
    141 	void *aux;
    142 {
    143 	struct pcmcia_attach_args *pa = aux;
    144 	struct pcmcia_config_entry *cfe;
    145 	int i;
    146 
    147 	for (i=0; i<(sizeof(com_devs)/sizeof(com_devs[0])); i++) {
    148 		if (com_dev_match(pa->card, pa->pf->number, i))
    149 			return(1);
    150 	}
    151 
    152 	/* find a cfe we can use (if it matches a standard COM port) */
    153 
    154 	for (cfe = pa->pf->cfe_head.sqh_first; cfe;
    155 	     cfe = cfe->cfe_list.sqe_next) {
    156 		if (cfe->iospace[0].start == IO_COM1 ||
    157 		    cfe->iospace[0].start == IO_COM2 ||
    158 		    cfe->iospace[0].start == IO_COM3 ||
    159 		    cfe->iospace[0].start == IO_COM4)
    160 			return(1);
    161 	}
    162 
    163 	return(0);
    164 }
    165 
    166 void
    167 com_pcmcia_attach(parent, self, aux)
    168 	struct device *parent, *self;
    169 	void *aux;
    170 {
    171 	struct com_pcmcia_softc *psc = (void *) self;
    172 	struct com_softc *sc = &psc->sc_com;
    173 	struct pcmcia_attach_args *pa = aux;
    174 	struct pcmcia_config_entry *cfe;
    175 	int i;
    176 	struct com_dev *comdev;
    177 
    178 	psc->sc_pf = pa->pf;
    179 
    180 	/* find a cfe we can use */
    181 
    182 	for (cfe = pa->pf->cfe_head.sqh_first; cfe;
    183 	     cfe = cfe->cfe_list.sqe_next) {
    184 		if (cfe->num_memspace != 0)
    185 			continue;
    186 
    187 		if (cfe->num_iospace != 1)
    188 			continue;
    189 
    190 		if (cfe->iomask == 3) {
    191 			if (pcmcia_io_alloc(pa->pf, 0, cfe->iospace[0].length,
    192 			    cfe->iospace[0].length, &psc->sc_pcioh)) {
    193 				continue;
    194 			}
    195 		} else {
    196 			if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start,
    197 			    cfe->iospace[0].length, 0, &psc->sc_pcioh)) {
    198 				continue;
    199 			}
    200 		}
    201 
    202 		break;
    203 	}
    204 
    205 	if (!cfe) {
    206 		printf(": can't allocate i/o space\n");
    207 		return;
    208 	}
    209 
    210 	sc->sc_iot = psc->sc_pcioh.iot;
    211 	sc->sc_ioh = psc->sc_pcioh.ioh;
    212 
    213 	/* Enable the card. */
    214 	pcmcia_function_init(pa->pf, cfe);
    215 	if (com_pcmcia_enable(sc))
    216 		printf(": function enable failed\n");
    217 
    218 	sc->enabled = 1;
    219 
    220 	/* map in the io space */
    221 
    222 	if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ?
    223 	    PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, psc->sc_pcioh.size,
    224 	    &psc->sc_pcioh, &psc->sc_io_window)) {
    225 		printf(": can't map i/o space\n");
    226 		return;
    227 	}
    228 
    229 	sc->sc_iobase = -1;
    230 	sc->sc_frequency = COM_FREQ;
    231 
    232 	sc->enable = com_pcmcia_enable;
    233 	sc->disable = com_pcmcia_disable;
    234 
    235 	com_attach_subr(sc);
    236 
    237 	for (i=0; i<(sizeof(com_devs)/sizeof(com_devs[0])); i++) {
    238 		if ((comdev = com_dev_match(pa->card, pa->pf->number, i))) {
    239 			printf(": %s\n", comdev->name);
    240 		}
    241 	}
    242 
    243 	sc->enabled = 0;
    244 
    245 	com_pcmcia_disable(sc);
    246 }
    247 
    248 int com_pcmcia_enable(struct com_softc *sc)
    249 {
    250 	struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
    251 	struct pcmcia_function *pf = psc->sc_pf;
    252 	int ret;
    253 
    254 	/* establish the interrupt. */
    255 	psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc);
    256 	if (psc->sc_ih == NULL) {
    257 		printf("%s: couldn't establish interrupt\n",
    258 		       sc->sc_dev.dv_xname);
    259 		return (1);
    260 	}
    261 
    262 	if ((ret = pcmcia_function_enable(pf)))
    263 	    return(ret);
    264 
    265 	if (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) {
    266 		int reg;
    267 
    268 		/* turn off the ethernet-disable bit */
    269 
    270 		reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION);
    271 		if (reg & 0x08) {
    272 		    reg &= ~0x08;
    273 		    pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg);
    274 		}
    275 	}
    276 
    277 	return(ret);
    278 }
    279 
    280 void com_pcmcia_disable(struct com_softc *sc)
    281 {
    282 	struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
    283 
    284 	pcmcia_function_disable(psc->sc_pf);
    285 
    286 	pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
    287 }
    288