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isapnp.c revision 1.2
      1  1.2  christos /*	$NetBSD: isapnp.c,v 1.2 1997/01/24 21:58:34 christos Exp $	*/
      2  1.1  christos 
      3  1.1  christos /*
      4  1.1  christos  * Copyright (c) 1996 Christos Zoulas.  All rights reserved.
      5  1.1  christos  *
      6  1.1  christos  * Redistribution and use in source and binary forms, with or without
      7  1.1  christos  * modification, are permitted provided that the following conditions
      8  1.1  christos  * are met:
      9  1.1  christos  * 1. Redistributions of source code must retain the above copyright
     10  1.1  christos  *    notice, this list of conditions and the following disclaimer.
     11  1.1  christos  * 2. Redistributions in binary form must reproduce the above copyright
     12  1.1  christos  *    notice, this list of conditions and the following disclaimer in the
     13  1.1  christos  *    documentation and/or other materials provided with the distribution.
     14  1.1  christos  * 3. All advertising materials mentioning features or use of this software
     15  1.1  christos  *    must display the following acknowledgement:
     16  1.1  christos  *	This product includes software developed by Christos Zoulas.
     17  1.1  christos  * 4. The name of the author may not be used to endorse or promote products
     18  1.1  christos  *    derived from this software without specific prior written permission.
     19  1.1  christos  *
     20  1.1  christos  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  1.1  christos  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  1.1  christos  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  1.1  christos  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  1.1  christos  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  1.1  christos  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  1.1  christos  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  1.1  christos  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  1.1  christos  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  1.1  christos  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  1.1  christos  */
     31  1.1  christos 
     32  1.1  christos /*
     33  1.1  christos  * ISA PnP bus autoconfiguration.
     34  1.1  christos  */
     35  1.1  christos 
     36  1.1  christos #include <sys/param.h>
     37  1.1  christos #include <sys/systm.h>
     38  1.1  christos #include <sys/device.h>
     39  1.1  christos #include <sys/malloc.h>
     40  1.1  christos 
     41  1.1  christos #include <machine/bus.h>
     42  1.1  christos 
     43  1.1  christos #include <dev/isa/isavar.h>
     44  1.1  christos 
     45  1.1  christos #include <dev/isapnp/isapnpreg.h>
     46  1.1  christos #include <dev/isapnp/isapnpvar.h>
     47  1.1  christos 
     48  1.1  christos static void isapnp_init __P((struct isapnp_softc *));
     49  1.1  christos static __inline u_char isapnp_shift_bit __P((struct isapnp_softc *));
     50  1.1  christos static int isapnp_findcard __P((struct isapnp_softc *));
     51  1.1  christos static void isapnp_free_region __P((bus_space_tag_t, struct isapnp_region *));
     52  1.1  christos static int isapnp_alloc_region __P((bus_space_tag_t, struct isapnp_region *));
     53  1.1  christos static int isapnp_alloc_pin __P((struct isapnp_pin *));
     54  1.1  christos static int isapnp_testconfig __P((bus_space_tag_t, bus_space_tag_t,
     55  1.1  christos     struct isapnp_attach_args *, int));
     56  1.1  christos static struct isapnp_attach_args *isapnp_bestconfig __P((struct isapnp_softc *,
     57  1.1  christos     struct isapnp_attach_args **));
     58  1.1  christos static void isapnp_print_region __P((const char *, struct isapnp_region *,
     59  1.1  christos     size_t));
     60  1.1  christos static void isapnp_configure __P((struct isapnp_softc *,
     61  1.1  christos     const struct isapnp_attach_args *));
     62  1.1  christos static void isapnp_print_pin __P((const char *, struct isapnp_pin *, size_t));
     63  1.1  christos static int isapnp_print __P((void *, const char *));
     64  1.1  christos static int isapnp_submatch __P((struct device *, void *, void *));
     65  1.1  christos static int isapnp_find __P((struct isapnp_softc *));
     66  1.1  christos static int isapnp_match __P((struct device *, void *, void *));
     67  1.1  christos static void isapnp_attach __P((struct device *, struct device *, void *));
     68  1.1  christos 
     69  1.1  christos struct cfattach isapnp_ca = {
     70  1.1  christos 	sizeof(struct isapnp_softc), isapnp_match, isapnp_attach
     71  1.1  christos };
     72  1.1  christos 
     73  1.1  christos struct cfdriver isapnp_cd = {
     74  1.1  christos 	NULL, "isapnp", DV_DULL
     75  1.1  christos };
     76  1.1  christos 
     77  1.1  christos 
     78  1.1  christos /* isapnp_init():
     79  1.1  christos  *	Write the PNP initiation key to wake up the cards...
     80  1.1  christos  */
     81  1.1  christos static void
     82  1.1  christos isapnp_init(sc)
     83  1.1  christos 	struct isapnp_softc *sc;
     84  1.1  christos {
     85  1.1  christos 	int i;
     86  1.1  christos 	u_char v = ISAPNP_LFSR_INIT;
     87  1.1  christos 
     88  1.1  christos 	/* First write 0's twice to enter the Wait for Key state */
     89  1.1  christos 	ISAPNP_WRITE_ADDR(sc, 0);
     90  1.1  christos 	ISAPNP_WRITE_ADDR(sc, 0);
     91  1.1  christos 
     92  1.1  christos 	/* Send the 32 byte sequence to awake the logic */
     93  1.1  christos 	for (i = 0; i < 32; i++) {
     94  1.1  christos 		ISAPNP_WRITE_ADDR(sc, v);
     95  1.1  christos 		v = ISAPNP_LFSR_NEXT(v);
     96  1.1  christos 	}
     97  1.1  christos }
     98  1.1  christos 
     99  1.1  christos 
    100  1.1  christos /* isapnp_shift_bit():
    101  1.1  christos  *	Read a bit at a time from the config card.
    102  1.1  christos  */
    103  1.1  christos static __inline u_char
    104  1.1  christos isapnp_shift_bit(sc)
    105  1.1  christos 	struct isapnp_softc *sc;
    106  1.1  christos {
    107  1.1  christos 	u_char c1, c2;
    108  1.1  christos 
    109  1.1  christos 	DELAY(250);
    110  1.1  christos 	c1 = ISAPNP_READ_DATA(sc);
    111  1.1  christos 	DELAY(250);
    112  1.1  christos 	c2 = ISAPNP_READ_DATA(sc);
    113  1.1  christos 
    114  1.1  christos 	if (c1 == 0x55 && c2 == 0xAA)
    115  1.1  christos 		return 0x80;
    116  1.1  christos 	else
    117  1.1  christos 		return 0;
    118  1.1  christos }
    119  1.1  christos 
    120  1.1  christos 
    121  1.1  christos /* isapnp_findcard():
    122  1.1  christos  *	Attempt to read the vendor/serial/checksum for a card
    123  1.1  christos  *	If a card is found [the checksum matches], assign the
    124  1.1  christos  *	next card number to it and return 1
    125  1.1  christos  */
    126  1.1  christos static int
    127  1.1  christos isapnp_findcard(sc)
    128  1.1  christos 	struct isapnp_softc *sc;
    129  1.1  christos {
    130  1.1  christos 	u_char v = ISAPNP_LFSR_INIT, csum = 0, w;
    131  1.1  christos 	int i, b;
    132  1.1  christos 
    133  1.1  christos 	if (sc->sc_ncards == ISAPNP_MAX_CARDS) {
    134  1.1  christos 		printf("%s: Too many pnp cards\n", sc->sc_dev.dv_xname);
    135  1.1  christos 		return 0;
    136  1.1  christos 	}
    137  1.1  christos 
    138  1.1  christos 	/* Set the read port */
    139  1.1  christos 	isapnp_write_reg(sc, ISAPNP_WAKE, 0);
    140  1.1  christos 	isapnp_write_reg(sc, ISAPNP_SET_RD_PORT, sc->sc_read_port >> 2);
    141  1.1  christos 	sc->sc_read_port |= 3;
    142  1.1  christos 	DELAY(1000);
    143  1.1  christos 
    144  1.1  christos 	ISAPNP_WRITE_ADDR(sc, ISAPNP_SERIAL_ISOLATION);
    145  1.1  christos 	DELAY(1000);
    146  1.1  christos 
    147  1.1  christos 	/* Read the 8 bytes of the Vendor ID and Serial Number */
    148  1.1  christos 	for(i = 0; i < 8; i++) {
    149  1.1  christos 		/* Read each bit separately */
    150  1.1  christos 		for (w = 0, b = 0; b < 8; b++) {
    151  1.1  christos 			u_char neg = isapnp_shift_bit(sc);
    152  1.1  christos 
    153  1.1  christos 			w >>= 1;
    154  1.1  christos 			w |= neg;
    155  1.1  christos 			v = ISAPNP_LFSR_NEXT(v) ^ neg;
    156  1.1  christos 		}
    157  1.1  christos 		sc->sc_id[sc->sc_ncards][i] = w;
    158  1.1  christos 	}
    159  1.1  christos 
    160  1.1  christos 	/* Read the remaining checksum byte */
    161  1.1  christos 	for (b = 0; b < 8; b++) {
    162  1.1  christos 		u_char neg = isapnp_shift_bit(sc);
    163  1.1  christos 
    164  1.1  christos 		csum >>= 1;
    165  1.1  christos 		csum |= neg;
    166  1.1  christos 		sc->sc_id[sc->sc_ncards][9] = w;
    167  1.1  christos 	}
    168  1.1  christos 
    169  1.1  christos 	if (csum == v) {
    170  1.1  christos 		sc->sc_ncards++;
    171  1.1  christos 		isapnp_write_reg(sc, ISAPNP_CARD_SELECT_NUM, sc->sc_ncards);
    172  1.1  christos 		return 1;
    173  1.1  christos 	}
    174  1.1  christos 	return 0;
    175  1.1  christos }
    176  1.1  christos 
    177  1.1  christos 
    178  1.1  christos /* isapnp_free_region():
    179  1.1  christos  *	Free a region
    180  1.1  christos  */
    181  1.1  christos static void
    182  1.1  christos isapnp_free_region(t, r)
    183  1.1  christos 	bus_space_tag_t t;
    184  1.1  christos 	struct isapnp_region *r;
    185  1.1  christos {
    186  1.1  christos 	bus_space_unmap(t, r->h, r->length);
    187  1.1  christos }
    188  1.1  christos 
    189  1.1  christos 
    190  1.1  christos /* isapnp_alloc_region():
    191  1.1  christos  *	Allocate a single region if possible
    192  1.1  christos  */
    193  1.1  christos static int
    194  1.1  christos isapnp_alloc_region(t, r)
    195  1.1  christos 	bus_space_tag_t t;
    196  1.1  christos 	struct isapnp_region *r;
    197  1.1  christos {
    198  1.1  christos 	int error = 0;
    199  1.1  christos 
    200  1.1  christos 	for (r->base = r->minbase; r->base <= r->maxbase; r->base += r->align) {
    201  1.1  christos 		error = bus_space_map(t, r->base, r->length, 0, &r->h);
    202  1.1  christos 		if (error == 0)
    203  1.1  christos 			return 0;
    204  1.1  christos 	}
    205  1.1  christos 	return error;
    206  1.1  christos }
    207  1.1  christos 
    208  1.1  christos 
    209  1.1  christos /* isapnp_alloc_pin():
    210  1.1  christos  *	Allocate an irq/drq
    211  1.1  christos  *	XXX: No resource conflict checks!
    212  1.1  christos  */
    213  1.1  christos static int
    214  1.1  christos isapnp_alloc_pin(i)
    215  1.1  christos 	struct isapnp_pin *i;
    216  1.1  christos {
    217  1.1  christos 	int b;
    218  1.1  christos 
    219  1.1  christos 	if (i->bits == 0)
    220  1.1  christos 		i->num = 0;
    221  1.1  christos 	else
    222  1.1  christos 		for (b = 0; b < 16; b++)
    223  1.1  christos 			if (i->bits & (1 << b))
    224  1.1  christos 				i->num = b;
    225  1.1  christos 	return 0;
    226  1.1  christos }
    227  1.1  christos 
    228  1.1  christos 
    229  1.1  christos /* isapnp_testconfig():
    230  1.1  christos  *	Test/Allocate the regions used
    231  1.1  christos  */
    232  1.1  christos static int
    233  1.1  christos isapnp_testconfig(iot, memt, ipa, alloc)
    234  1.1  christos 	bus_space_tag_t iot, memt;
    235  1.1  christos 	struct isapnp_attach_args *ipa;
    236  1.1  christos 	int alloc;
    237  1.1  christos {
    238  1.1  christos 	int nio = 0, nmem = 0, nmem32 = 0, nirq = 0, ndrq = 0;
    239  1.1  christos 	int error = 0;
    240  1.1  christos 
    241  1.1  christos #ifdef DEBUG_ISAPNP
    242  1.1  christos 	isapnp_print_attach(ipa);
    243  1.1  christos #endif
    244  1.1  christos 
    245  1.1  christos 	for (; nio < ipa->ipa_nio; nio++) {
    246  1.1  christos 		error = isapnp_alloc_region(iot, &ipa->ipa_io[nio]);
    247  1.1  christos 		if (error)
    248  1.1  christos 			goto bad;
    249  1.1  christos 	}
    250  1.1  christos 
    251  1.1  christos 	for (; nmem < ipa->ipa_nmem; nmem++) {
    252  1.1  christos 		error = isapnp_alloc_region(memt, &ipa->ipa_mem[nmem]);
    253  1.1  christos 		if (error)
    254  1.1  christos 			goto bad;
    255  1.1  christos 	}
    256  1.1  christos 
    257  1.1  christos 	for (; nmem32 < ipa->ipa_nmem32; nmem32++) {
    258  1.1  christos 		error = isapnp_alloc_region(memt, &ipa->ipa_mem32[nmem32]);
    259  1.1  christos 		if (error)
    260  1.1  christos 			goto bad;
    261  1.1  christos 	}
    262  1.1  christos 
    263  1.1  christos 	for (; nirq < ipa->ipa_nirq; nirq++) {
    264  1.1  christos 		error = isapnp_alloc_pin(&ipa->ipa_irq[nirq]);
    265  1.1  christos 		if (error)
    266  1.1  christos 			goto bad;
    267  1.1  christos 	}
    268  1.1  christos 
    269  1.1  christos 	for (; ndrq < ipa->ipa_ndrq; ndrq++) {
    270  1.1  christos 		error = isapnp_alloc_pin(&ipa->ipa_drq[ndrq]);
    271  1.1  christos 		if (error)
    272  1.1  christos 			goto bad;
    273  1.1  christos 	}
    274  1.1  christos 
    275  1.1  christos 	if (alloc)
    276  1.1  christos 		return error;
    277  1.1  christos 
    278  1.1  christos bad:
    279  1.1  christos #ifdef notyet
    280  1.1  christos 	for (ndrq--; ndrq >= 0; ndrq--)
    281  1.1  christos 		isapnp_free_pin(&ipa->ipa_drq[ndrq]);
    282  1.1  christos 
    283  1.1  christos 	for (nirq--; nirq >= 0; nirq--)
    284  1.1  christos 		isapnp_free_pin(&ipa->ipa_irq[nirq]);
    285  1.1  christos #endif
    286  1.1  christos 
    287  1.1  christos 	for (nmem32--; nmem32 >= 0; nmem32--)
    288  1.1  christos 		isapnp_free_region(memt, &ipa->ipa_mem32[nmem32]);
    289  1.1  christos 
    290  1.1  christos 	for (nmem--; nmem >= 0; nmem--)
    291  1.1  christos 		isapnp_free_region(memt, &ipa->ipa_mem[nmem]);
    292  1.1  christos 
    293  1.1  christos 	for (nio--; nio >= 0; nio--)
    294  1.1  christos 		isapnp_free_region(iot, &ipa->ipa_io[nio]);
    295  1.1  christos 
    296  1.1  christos 	return error;
    297  1.1  christos }
    298  1.1  christos 
    299  1.1  christos 
    300  1.1  christos /* isapnp_config():
    301  1.1  christos  *	Test/Allocate the regions used
    302  1.1  christos  */
    303  1.1  christos int
    304  1.1  christos isapnp_config(iot, memt, ipa)
    305  1.1  christos 	bus_space_tag_t iot, memt;
    306  1.1  christos 	struct isapnp_attach_args *ipa;
    307  1.1  christos {
    308  1.1  christos 	return isapnp_testconfig(iot, memt, ipa, 1);
    309  1.1  christos }
    310  1.1  christos 
    311  1.1  christos 
    312  1.1  christos /* isapnp_unconfig():
    313  1.1  christos  *	Free the regions used
    314  1.1  christos  */
    315  1.1  christos void
    316  1.1  christos isapnp_unconfig(iot, memt, ipa)
    317  1.1  christos 	bus_space_tag_t iot, memt;
    318  1.1  christos 	struct isapnp_attach_args *ipa;
    319  1.1  christos {
    320  1.1  christos 	int i;
    321  1.1  christos 
    322  1.1  christos #ifdef notyet
    323  1.1  christos 	for (i = 0; i < ipa->ipa_ndrq; i++)
    324  1.1  christos 		isapnp_free_pin(&ipa->ipa_drq[i]);
    325  1.1  christos 
    326  1.1  christos 	for (i = 0; i < ipa->ipa_nirq; i++)
    327  1.1  christos 		isapnp_free_pin(&ipa->ipa_irq[i]);
    328  1.1  christos #endif
    329  1.1  christos 
    330  1.1  christos 	for (i = 0; i < ipa->ipa_nmem32; i++)
    331  1.1  christos 		isapnp_free_region(memt, &ipa->ipa_mem32[i]);
    332  1.1  christos 
    333  1.1  christos 	for (i = 0; i < ipa->ipa_nmem; i++)
    334  1.1  christos 		isapnp_free_region(memt, &ipa->ipa_mem[i]);
    335  1.1  christos 
    336  1.1  christos 	for (i = 0; i < ipa->ipa_nio; i++)
    337  1.1  christos 		isapnp_free_region(iot, &ipa->ipa_io[i]);
    338  1.1  christos }
    339  1.1  christos 
    340  1.1  christos 
    341  1.1  christos /* isapnp_bestconfig():
    342  1.1  christos  *	Return the best configuration for each logical device, remove and
    343  1.1  christos  *	free all other configurations.
    344  1.1  christos  */
    345  1.1  christos static struct isapnp_attach_args *
    346  1.1  christos isapnp_bestconfig(sc, ipa)
    347  1.1  christos 	struct isapnp_softc *sc;
    348  1.1  christos 	struct isapnp_attach_args **ipa;
    349  1.1  christos {
    350  1.1  christos 	struct isapnp_attach_args *c, *best, *f = *ipa;
    351  1.1  christos 	int error;
    352  1.1  christos 
    353  1.1  christos 	for (;;) {
    354  1.1  christos 		if (f == NULL)
    355  1.1  christos 			return NULL;
    356  1.1  christos 
    357  1.1  christos #define SAMEDEV(a, b) (strcmp((a)->ipa_devlogic, (b)->ipa_devlogic) == 0)
    358  1.1  christos 
    359  1.1  christos 		/* Find the best config */
    360  1.2  christos 		for (best = c = f; c != NULL; c = c->ipa_sibling) {
    361  1.1  christos 			if (!SAMEDEV(c, f))
    362  1.1  christos 				continue;
    363  1.1  christos 			if (c->ipa_pref < best->ipa_pref)
    364  1.1  christos 				best = c;
    365  1.1  christos 		}
    366  1.1  christos 
    367  1.1  christos 		/* Test the best config */
    368  1.1  christos 		error = isapnp_testconfig(sc->sc_iot, sc->sc_memt, best, 0);
    369  1.1  christos 
    370  1.1  christos 		/* Remove this config from the list */
    371  1.1  christos 		if (best == f)
    372  1.2  christos 			f = f->ipa_sibling;
    373  1.1  christos 		else {
    374  1.2  christos 			for (c = f; c->ipa_sibling != best; c = c->ipa_sibling)
    375  1.1  christos 				continue;
    376  1.2  christos 			c->ipa_sibling = best->ipa_sibling;
    377  1.1  christos 		}
    378  1.1  christos 
    379  1.1  christos 		if (error) {
    380  1.1  christos 			best->ipa_pref = ISAPNP_DEP_CONFLICTING;
    381  1.1  christos 
    382  1.2  christos 			for (c = f; c != NULL; c = c->ipa_sibling)
    383  1.1  christos 				if (c != best && SAMEDEV(c, best))
    384  1.1  christos 					break;
    385  1.1  christos 			/* Last config for this logical device is conflicting */
    386  1.1  christos 			if (c == NULL) {
    387  1.1  christos 				*ipa = f;
    388  1.1  christos 				return best;
    389  1.1  christos 			}
    390  1.1  christos 
    391  1.1  christos 			ISAPNP_FREE(best);
    392  1.1  christos 			continue;
    393  1.1  christos 		}
    394  1.1  christos 		else {
    395  1.1  christos 			/* Remove all other configs for this device */
    396  1.1  christos 			struct isapnp_attach_args *l = NULL, *n = NULL, *d;
    397  1.1  christos 
    398  1.1  christos 			for (c = f; c; ) {
    399  1.1  christos 				if (c == best)
    400  1.1  christos 					continue;
    401  1.2  christos 				d = c->ipa_sibling;
    402  1.1  christos 				if (SAMEDEV(c, best))
    403  1.1  christos 					ISAPNP_FREE(c);
    404  1.1  christos 				else {
    405  1.1  christos 					if (n)
    406  1.2  christos 						n->ipa_sibling = c;
    407  1.1  christos 
    408  1.1  christos 					else
    409  1.1  christos 						l = c;
    410  1.1  christos 					n = c;
    411  1.2  christos 					c->ipa_sibling = NULL;
    412  1.1  christos 				}
    413  1.1  christos 				c = d;
    414  1.1  christos 			}
    415  1.1  christos 			f = l;
    416  1.1  christos 		}
    417  1.1  christos 		*ipa = f;
    418  1.1  christos 		return best;
    419  1.1  christos 	}
    420  1.1  christos }
    421  1.1  christos 
    422  1.1  christos 
    423  1.1  christos /* isapnp_id_to_vendor():
    424  1.1  christos  *	Convert a pnp ``compressed ascii'' vendor id to a string
    425  1.1  christos  */
    426  1.1  christos char *
    427  1.1  christos isapnp_id_to_vendor(v, id)
    428  1.1  christos 	char   *v;
    429  1.1  christos 	const u_char *id;
    430  1.1  christos {
    431  1.1  christos 	static const char hex[] = "0123456789ABCDEF";
    432  1.1  christos 	char *p = v;
    433  1.1  christos 
    434  1.1  christos 	*p++ = 'A' + (id[0] >> 2) - 1;
    435  1.1  christos 	*p++ = 'A' + ((id[0] & 3) << 3) + (id[1] >> 5) - 1;
    436  1.1  christos 	*p++ = 'A' + (id[1] & 0x1f) - 1;
    437  1.1  christos 	*p++ = hex[id[2] >> 4];
    438  1.1  christos 	*p++ = hex[id[2] & 0x0f];
    439  1.1  christos 	*p++ = hex[id[3] >> 4];
    440  1.1  christos 	*p++ = hex[id[3] & 0x0f];
    441  1.1  christos 	*p = '\0';
    442  1.1  christos 
    443  1.1  christos 	return v;
    444  1.1  christos }
    445  1.1  christos 
    446  1.1  christos 
    447  1.1  christos /* isapnp_print_region():
    448  1.1  christos  *	Print a region allocation
    449  1.1  christos  */
    450  1.1  christos static void
    451  1.1  christos isapnp_print_region(str, r, n)
    452  1.1  christos 	const char *str;
    453  1.1  christos 	struct isapnp_region *r;
    454  1.1  christos 	size_t n;
    455  1.1  christos {
    456  1.1  christos 	size_t i;
    457  1.1  christos 
    458  1.1  christos 	if (n == 0)
    459  1.1  christos 		return;
    460  1.1  christos 
    461  1.1  christos 	printf(" %s ", str);
    462  1.1  christos 	for (i = 0; i < n; i++, r++) {
    463  1.1  christos 		printf("0x%x", r->base);
    464  1.1  christos 		if (r->length)
    465  1.1  christos 			printf("/%d", r->length);
    466  1.1  christos 		if (i != n - 1)
    467  1.1  christos 			printf(",");
    468  1.1  christos 	}
    469  1.1  christos }
    470  1.1  christos 
    471  1.1  christos 
    472  1.1  christos /* isapnp_print_pin():
    473  1.1  christos  *	Print an irq/drq assignment
    474  1.1  christos  */
    475  1.1  christos static void
    476  1.1  christos isapnp_print_pin(str, p, n)
    477  1.1  christos 	const char *str;
    478  1.1  christos 	struct isapnp_pin *p;
    479  1.1  christos 	size_t n;
    480  1.1  christos {
    481  1.1  christos 	size_t i;
    482  1.1  christos 
    483  1.1  christos 	if (n == 0)
    484  1.1  christos 		return;
    485  1.1  christos 
    486  1.1  christos 	printf(" %s ", str);
    487  1.1  christos 	for (i = 0; i < n; i++, p++) {
    488  1.1  christos 		printf("%d", p->num);
    489  1.1  christos 		if (i != n - 1)
    490  1.1  christos 			printf(",");
    491  1.1  christos 	}
    492  1.1  christos }
    493  1.1  christos 
    494  1.1  christos 
    495  1.1  christos /* isapnp_print():
    496  1.1  christos  *	Print the configuration line for an ISA PnP card.
    497  1.1  christos  */
    498  1.1  christos static int
    499  1.1  christos isapnp_print(aux, str)
    500  1.1  christos 	void *aux;
    501  1.1  christos 	const char *str;
    502  1.1  christos {
    503  1.1  christos 	struct isapnp_attach_args *ipa = aux;
    504  1.1  christos 
    505  1.1  christos 	if (str != NULL)
    506  1.1  christos 		printf("%s: <%s, %s, %s>",
    507  1.1  christos 		    str, ipa->ipa_devident, ipa->ipa_devlogic,
    508  1.1  christos 		    ipa->ipa_devclass);
    509  1.1  christos 
    510  1.1  christos 	isapnp_print_region("port", ipa->ipa_io, ipa->ipa_nio);
    511  1.1  christos 	isapnp_print_region("mem", ipa->ipa_mem, ipa->ipa_nmem);
    512  1.1  christos 	isapnp_print_region("mem32", ipa->ipa_mem32, ipa->ipa_nmem32);
    513  1.1  christos 	isapnp_print_pin("irq", ipa->ipa_irq, ipa->ipa_nirq);
    514  1.1  christos 	isapnp_print_pin("drq", ipa->ipa_drq, ipa->ipa_ndrq);
    515  1.1  christos 
    516  1.1  christos 	return UNCONF;
    517  1.1  christos }
    518  1.1  christos 
    519  1.1  christos 
    520  1.1  christos /* isapnp_submatch():
    521  1.1  christos  *	Probe the card...
    522  1.1  christos  */
    523  1.1  christos static int
    524  1.1  christos isapnp_submatch(parent, match, aux)
    525  1.1  christos 	struct device *parent;
    526  1.1  christos 	void *match, *aux;
    527  1.1  christos {
    528  1.1  christos 	struct cfdata *cf = match;
    529  1.1  christos 	return ((*cf->cf_attach->ca_match)(parent, match, aux));
    530  1.1  christos }
    531  1.1  christos 
    532  1.1  christos 
    533  1.1  christos /* isapnp_find():
    534  1.1  christos  *	Probe and add cards
    535  1.1  christos  */
    536  1.1  christos static int
    537  1.1  christos isapnp_find(sc)
    538  1.1  christos 	struct isapnp_softc *sc;
    539  1.1  christos {
    540  1.1  christos 	int p;
    541  1.1  christos 
    542  1.1  christos 	isapnp_init(sc);
    543  1.1  christos 
    544  1.1  christos 	isapnp_write_reg(sc, ISAPNP_CONFIG_CONTROL, ISAPNP_CC_RESET_DRV);
    545  1.1  christos 	DELAY(2000);
    546  1.1  christos 
    547  1.1  christos 	isapnp_init(sc);
    548  1.1  christos 	DELAY(2000);
    549  1.1  christos 
    550  1.1  christos 	for (p = ISAPNP_RDDATA_MIN; p <= ISAPNP_RDDATA_MAX; p += 4) {
    551  1.1  christos 		sc->sc_read_port = p;
    552  1.1  christos 		if (isapnp_map_readport(sc))
    553  1.1  christos 			continue;
    554  1.1  christos 		DPRINTF(("%s: Trying port %x\n", sc->sc_dev.dv_xname, p));
    555  1.1  christos 		if (isapnp_findcard(sc))
    556  1.1  christos 			break;
    557  1.1  christos 		isapnp_unmap_readport(sc);
    558  1.1  christos 	}
    559  1.1  christos 
    560  1.1  christos 	if (p > ISAPNP_RDDATA_MAX) {
    561  1.1  christos 		sc->sc_read_port = 0;
    562  1.1  christos 		return 0;
    563  1.1  christos 	}
    564  1.1  christos 
    565  1.1  christos 	while (isapnp_findcard(sc))
    566  1.1  christos 		continue;
    567  1.1  christos 
    568  1.1  christos 	return 1;
    569  1.1  christos }
    570  1.1  christos 
    571  1.1  christos 
    572  1.1  christos /* isapnp_configure():
    573  1.1  christos  *	Configure a PnP card
    574  1.1  christos  *	XXX: The memory configuration code is wrong. We need to check the
    575  1.1  christos  *	     range/length bit an do appropriate sets.
    576  1.1  christos  */
    577  1.1  christos static void
    578  1.1  christos isapnp_configure(sc, ipa)
    579  1.1  christos 	struct isapnp_softc *sc;
    580  1.1  christos 	const struct isapnp_attach_args *ipa;
    581  1.1  christos {
    582  1.1  christos 	int i;
    583  1.1  christos 	static u_char isapnp_mem_range[] = ISAPNP_MEM_DESC;
    584  1.1  christos 	static u_char isapnp_io_range[] = ISAPNP_IO_DESC;
    585  1.1  christos 	static u_char isapnp_irq_range[] = ISAPNP_IRQ_DESC;
    586  1.1  christos 	static u_char isapnp_drq_range[] = ISAPNP_DRQ_DESC;
    587  1.1  christos 	static u_char isapnp_mem32_range[] = ISAPNP_MEM32_DESC;
    588  1.1  christos 	const struct isapnp_region *r;
    589  1.1  christos 	const struct isapnp_pin *p;
    590  1.1  christos 	struct isapnp_region rz;
    591  1.1  christos 	struct isapnp_pin pz;
    592  1.1  christos 
    593  1.1  christos 	memset(&pz, 0, sizeof(pz));
    594  1.1  christos 	memset(&rz, 0, sizeof(rz));
    595  1.1  christos 
    596  1.1  christos #define B0(a) ((a) & 0xff)
    597  1.1  christos #define B1(a) (((a) >> 8) & 0xff)
    598  1.1  christos #define B2(a) (((a) >> 16) & 0xff)
    599  1.1  christos #define B3(a) (((a) >> 24) & 0xff)
    600  1.1  christos 
    601  1.1  christos 	for (i = 0; i < sizeof(isapnp_io_range); i++) {
    602  1.1  christos 		if (i < ipa->ipa_nio)
    603  1.1  christos 			r = &ipa->ipa_io[i];
    604  1.1  christos 		else
    605  1.1  christos 			r = &rz;
    606  1.1  christos 
    607  1.1  christos 		isapnp_write_reg(sc,
    608  1.1  christos 		    isapnp_io_range[i] + ISAPNP_IO_BASE_15_8, B1(r->base));
    609  1.1  christos 		isapnp_write_reg(sc,
    610  1.1  christos 		    isapnp_io_range[i] + ISAPNP_IO_BASE_7_0, B0(r->base));
    611  1.1  christos 	}
    612  1.1  christos 
    613  1.1  christos 	for (i = 0; i < sizeof(isapnp_mem_range); i++) {
    614  1.1  christos 		if (i < ipa->ipa_nmem)
    615  1.1  christos 			r = &ipa->ipa_mem[i];
    616  1.1  christos 		else
    617  1.1  christos 			r = &rz;
    618  1.1  christos 
    619  1.1  christos 		isapnp_write_reg(sc,
    620  1.1  christos 		    isapnp_mem_range[i] + ISAPNP_MEM_BASE_23_16, B2(r->base));
    621  1.1  christos 		isapnp_write_reg(sc,
    622  1.1  christos 		    isapnp_mem_range[i] + ISAPNP_MEM_BASE_15_8, B1(r->base));
    623  1.1  christos 
    624  1.1  christos 		isapnp_write_reg(sc,
    625  1.1  christos 		    isapnp_mem_range[i] + ISAPNP_MEM_LRANGE_23_16,
    626  1.1  christos 		    B2(r->length));
    627  1.1  christos 		isapnp_write_reg(sc,
    628  1.1  christos 		    isapnp_mem_range[i] + ISAPNP_MEM_LRANGE_15_8,
    629  1.1  christos 		    B1(r->length));
    630  1.1  christos 	}
    631  1.1  christos 
    632  1.1  christos 	for (i = 0; i < sizeof(isapnp_irq_range); i++) {
    633  1.1  christos 		u_char v;
    634  1.1  christos 
    635  1.1  christos 		if (i < ipa->ipa_nirq)
    636  1.1  christos 			p = &ipa->ipa_irq[i];
    637  1.1  christos 		else
    638  1.1  christos 			p = &pz;
    639  1.1  christos 
    640  1.1  christos 		isapnp_write_reg(sc,
    641  1.1  christos 		    isapnp_irq_range[i] + ISAPNP_IRQ_NUMBER, p->num);
    642  1.1  christos 
    643  1.1  christos 		switch (p->flags) {
    644  1.1  christos 		case ISAPNP_IRQTYPE_LEVEL_PLUS:
    645  1.1  christos 			v = ISAPNP_IRQ_LEVEL|ISAPNP_IRQ_HIGH;
    646  1.1  christos 			break;
    647  1.1  christos 
    648  1.1  christos 		case ISAPNP_IRQTYPE_EDGE_PLUS:
    649  1.1  christos 			v = ISAPNP_IRQ_HIGH;
    650  1.1  christos 			break;
    651  1.1  christos 
    652  1.1  christos 		case ISAPNP_IRQTYPE_LEVEL_MINUS:
    653  1.1  christos 			v = ISAPNP_IRQ_LEVEL;
    654  1.1  christos 			break;
    655  1.1  christos 
    656  1.1  christos 		default:
    657  1.1  christos 		case ISAPNP_IRQTYPE_EDGE_MINUS:
    658  1.1  christos 			v = 0;
    659  1.1  christos 			break;
    660  1.1  christos 		}
    661  1.1  christos 		isapnp_write_reg(sc,
    662  1.1  christos 		    isapnp_irq_range[i] + ISAPNP_IRQ_CONTROL, v);
    663  1.1  christos 	}
    664  1.1  christos 
    665  1.1  christos 	for (i = 0; i < sizeof(isapnp_drq_range); i++) {
    666  1.1  christos 		u_char v;
    667  1.1  christos 
    668  1.1  christos 		if (i < ipa->ipa_ndrq)
    669  1.1  christos 			v = ipa->ipa_drq[i].num;
    670  1.1  christos 		else
    671  1.1  christos 			v = 4;
    672  1.1  christos 
    673  1.1  christos 		isapnp_write_reg(sc, isapnp_drq_range[i], v);
    674  1.1  christos 	}
    675  1.1  christos 
    676  1.1  christos 	for (i = 0; i < sizeof(isapnp_mem32_range); i++) {
    677  1.1  christos 		if (i < ipa->ipa_nmem32)
    678  1.1  christos 			r = &ipa->ipa_mem32[i];
    679  1.1  christos 		else
    680  1.1  christos 			r = &rz;
    681  1.1  christos 
    682  1.1  christos 		isapnp_write_reg(sc,
    683  1.1  christos 		    isapnp_mem32_range[i] + ISAPNP_MEM32_BASE_31_24,
    684  1.1  christos 		    B3(r->base));
    685  1.1  christos 		isapnp_write_reg(sc,
    686  1.1  christos 		    isapnp_mem32_range[i] + ISAPNP_MEM32_BASE_23_16,
    687  1.1  christos 		    B2(r->base));
    688  1.1  christos 		isapnp_write_reg(sc,
    689  1.1  christos 		    isapnp_mem32_range[i] + ISAPNP_MEM32_BASE_15_8,
    690  1.1  christos 		    B1(r->base));
    691  1.1  christos 		isapnp_write_reg(sc,
    692  1.1  christos 		    isapnp_mem32_range[i] + ISAPNP_MEM32_BASE_7_0,
    693  1.1  christos 		    B0(r->base));
    694  1.1  christos 
    695  1.1  christos 		isapnp_write_reg(sc,
    696  1.1  christos 		    isapnp_mem32_range[i] + ISAPNP_MEM32_LRANGE_31_24,
    697  1.1  christos 		    B3(r->length));
    698  1.1  christos 		isapnp_write_reg(sc,
    699  1.1  christos 		    isapnp_mem32_range[i] + ISAPNP_MEM32_LRANGE_23_16,
    700  1.1  christos 		    B2(r->length));
    701  1.1  christos 		isapnp_write_reg(sc,
    702  1.1  christos 		    isapnp_mem32_range[i] + ISAPNP_MEM32_LRANGE_15_8,
    703  1.1  christos 		    B1(r->length));
    704  1.1  christos 		isapnp_write_reg(sc,
    705  1.1  christos 		    isapnp_mem32_range[i] + ISAPNP_MEM32_LRANGE_7_0,
    706  1.1  christos 		    B0(r->length));
    707  1.1  christos 	}
    708  1.1  christos }
    709  1.1  christos 
    710  1.1  christos 
    711  1.1  christos /* isapnp_match():
    712  1.1  christos  *	Probe routine
    713  1.1  christos  */
    714  1.1  christos static int
    715  1.1  christos isapnp_match(parent, match, aux)
    716  1.1  christos 	struct device *parent;
    717  1.1  christos 	void *match, *aux;
    718  1.1  christos {
    719  1.1  christos 	int rv;
    720  1.1  christos 	struct isapnp_softc sc;
    721  1.1  christos 	struct isa_attach_args *ia = aux;
    722  1.1  christos 
    723  1.1  christos 	sc.sc_iot = ia->ia_iot;
    724  1.1  christos 	ia->ia_iobase = ISAPNP_ADDR;
    725  1.1  christos 	ia->ia_iosize = 1;
    726  1.1  christos 	(void) strcpy(sc.sc_dev.dv_xname, "(isapnp probe)");
    727  1.1  christos 
    728  1.1  christos 	if (isapnp_map(&sc))
    729  1.1  christos 		return 0;
    730  1.1  christos 
    731  1.1  christos 	rv = isapnp_find(&sc);
    732  1.1  christos 
    733  1.1  christos 	isapnp_unmap(&sc);
    734  1.1  christos 
    735  1.1  christos 	return (rv);
    736  1.1  christos }
    737  1.1  christos 
    738  1.1  christos 
    739  1.1  christos /* isapnp_attach
    740  1.1  christos  *	Find and attach PnP cards.
    741  1.1  christos  */
    742  1.1  christos static void
    743  1.1  christos isapnp_attach(parent, self, aux)
    744  1.1  christos 	struct device *parent, *self;
    745  1.1  christos 	void *aux;
    746  1.1  christos {
    747  1.1  christos 	struct isapnp_softc *sc = (struct isapnp_softc *) self;
    748  1.1  christos 	struct isa_attach_args *ia = aux;
    749  1.1  christos 	int c, d;
    750  1.1  christos 
    751  1.1  christos 	sc->sc_iot = ia->ia_iot;
    752  1.1  christos 	sc->sc_memt = ia->ia_memt;
    753  1.1  christos 	sc->sc_ncards = 0;
    754  1.1  christos 
    755  1.1  christos 	if (isapnp_map(sc))
    756  1.1  christos 		panic("%s: bus map failed\n", sc->sc_dev.dv_xname);
    757  1.1  christos 
    758  1.1  christos 	if (!isapnp_find(sc))
    759  1.1  christos 		panic("%s: no devices found\n", sc->sc_dev.dv_xname);
    760  1.1  christos 
    761  1.1  christos 	printf(": read port 0x%x\n", sc->sc_read_port);
    762  1.1  christos 
    763  1.1  christos 	for (c = 0; c < sc->sc_ncards; c++) {
    764  1.1  christos 		struct isapnp_attach_args *ipa, *lpa;
    765  1.1  christos 
    766  1.1  christos 		/* Good morning card c */
    767  1.1  christos 		isapnp_write_reg(sc, ISAPNP_WAKE, c + 1);
    768  1.1  christos 
    769  1.1  christos 		if ((ipa = isapnp_get_resource(sc, c)) == NULL)
    770  1.1  christos 			continue;
    771  1.1  christos 
    772  1.1  christos 
    773  1.1  christos 		DPRINTF(("Selecting attachments\n"));
    774  1.1  christos 		for (d = 0; (lpa = isapnp_bestconfig(sc, &ipa)) != NULL; d++) {
    775  1.1  christos 			isapnp_write_reg(sc, ISAPNP_LOGICAL_DEV_NUM, d);
    776  1.1  christos 			isapnp_configure(sc, lpa);
    777  1.1  christos #ifdef DEBUG_ISAPNP
    778  1.1  christos 			{
    779  1.1  christos 				struct isapnp_attach_args pa;
    780  1.1  christos 				isapnp_get_config(sc, &pa);
    781  1.1  christos 				isapnp_print_config(&pa);
    782  1.1  christos 			}
    783  1.1  christos #endif
    784  1.1  christos 
    785  1.1  christos #ifdef DEBUG
    786  1.1  christos 			/* XXX do we even really need this?  --thorpej */
    787  1.1  christos 			printf("%s: configuring <%s, %s, %s>\n",
    788  1.1  christos 			    sc->sc_dev.dv_xname,
    789  1.1  christos 			    lpa->ipa_devident, lpa->ipa_devlogic,
    790  1.1  christos 			    lpa->ipa_devclass);
    791  1.1  christos #endif
    792  1.1  christos 
    793  1.1  christos 			if (lpa->ipa_pref == ISAPNP_DEP_CONFLICTING) {
    794  1.1  christos 				printf("%s: <%s, %s, %s> ignored; %s\n",
    795  1.1  christos 				    sc->sc_dev.dv_xname,
    796  1.1  christos 				    lpa->ipa_devident, lpa->ipa_devlogic,
    797  1.1  christos 				    lpa->ipa_devclass, "resource conflict");
    798  1.1  christos 				ISAPNP_FREE(lpa);
    799  1.1  christos 				continue;
    800  1.1  christos 			}
    801  1.1  christos 
    802  1.1  christos 			lpa->ipa_ic = ia->ia_ic;
    803  1.1  christos 			lpa->ipa_iot = ia->ia_iot;
    804  1.1  christos 			lpa->ipa_memt = ia->ia_memt;
    805  1.1  christos 
    806  1.1  christos 			isapnp_write_reg(sc, ISAPNP_ACTIVATE, 1);
    807  1.1  christos #ifdef _KERNEL
    808  1.1  christos 			if(config_found_sm(self, lpa, isapnp_print,
    809  1.1  christos 			    isapnp_submatch) == NULL)
    810  1.1  christos 				isapnp_write_reg(sc, ISAPNP_ACTIVATE, 0);
    811  1.1  christos #else
    812  1.1  christos 			isapnp_print(lpa, NULL);
    813  1.1  christos 			printf("\n");
    814  1.1  christos #endif
    815  1.1  christos 			ISAPNP_FREE(lpa);
    816  1.1  christos 		}
    817  1.1  christos 		isapnp_write_reg(sc, ISAPNP_WAKE, 0);    /* Good night cards */
    818  1.1  christos 	}
    819  1.1  christos }
    820