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gio.c revision 1.24
      1  1.24    rumble /*	$NetBSD: gio.c,v 1.24 2006/12/29 00:41:11 rumble Exp $	*/
      2   1.1     soren 
      3   1.1     soren /*
      4   1.1     soren  * Copyright (c) 2000 Soren S. Jorvang
      5   1.1     soren  * All rights reserved.
      6   1.2    simonb  *
      7   1.1     soren  * Redistribution and use in source and binary forms, with or without
      8   1.1     soren  * modification, are permitted provided that the following conditions
      9   1.1     soren  * are met:
     10   1.1     soren  * 1. Redistributions of source code must retain the above copyright
     11   1.1     soren  *    notice, this list of conditions and the following disclaimer.
     12   1.1     soren  * 2. Redistributions in binary form must reproduce the above copyright
     13   1.1     soren  *    notice, this list of conditions and the following disclaimer in the
     14   1.1     soren  *    documentation and/or other materials provided with the distribution.
     15   1.1     soren  * 3. All advertising materials mentioning features or use of this software
     16   1.1     soren  *    must display the following acknowledgement:
     17   1.1     soren  *          This product includes software developed for the
     18  1.11    keihan  *          NetBSD Project.  See http://www.NetBSD.org/ for
     19   1.1     soren  *          information about NetBSD.
     20   1.1     soren  * 4. The name of the author may not be used to endorse or promote products
     21   1.1     soren  *    derived from this software without specific prior written permission.
     22   1.2    simonb  *
     23   1.1     soren  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     24   1.1     soren  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     25   1.1     soren  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     26   1.1     soren  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     27   1.1     soren  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     28   1.1     soren  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     29   1.1     soren  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     30   1.1     soren  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     31   1.1     soren  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     32   1.1     soren  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     33   1.1     soren  */
     34  1.10     lukem 
     35  1.10     lukem #include <sys/cdefs.h>
     36  1.24    rumble __KERNEL_RCSID(0, "$NetBSD: gio.c,v 1.24 2006/12/29 00:41:11 rumble Exp $");
     37   1.1     soren 
     38   1.1     soren #include "opt_ddb.h"
     39   1.1     soren 
     40   1.1     soren #include <sys/param.h>
     41   1.1     soren #include <sys/systm.h>
     42   1.1     soren #include <sys/device.h>
     43   1.1     soren 
     44  1.22    rumble #define _SGIMIPS_BUS_DMA_PRIVATE
     45  1.12  lonewolf #include <machine/bus.h>
     46  1.22    rumble #include <machine/machtype.h>
     47  1.12  lonewolf 
     48   1.1     soren #include <sgimips/gio/gioreg.h>
     49   1.1     soren #include <sgimips/gio/giovar.h>
     50  1.14    sekiya #include <sgimips/gio/giodevs_data.h>
     51   1.1     soren 
     52   1.1     soren #include "locators.h"
     53  1.12  lonewolf #include "newport.h"
     54  1.16    sekiya #include "grtwo.h"
     55  1.24    rumble #include "light.h"
     56  1.22    rumble #include "imc.h"
     57  1.22    rumble #include "pic.h"
     58  1.12  lonewolf 
     59  1.12  lonewolf #if (NNEWPORT > 0)
     60  1.12  lonewolf #include <sgimips/gio/newportvar.h>
     61  1.12  lonewolf #endif
     62   1.1     soren 
     63  1.16    sekiya #if (NGRTWO > 0)
     64  1.16    sekiya #include <sgimips/gio/grtwovar.h>
     65  1.16    sekiya #endif
     66  1.16    sekiya 
     67  1.22    rumble #if (NIMC > 0)
     68  1.22    rumble extern int imc_gio64_arb_config(int, uint32_t);
     69  1.22    rumble #endif
     70  1.22    rumble 
     71  1.22    rumble #if (NPIC > 0)
     72  1.22    rumble extern int pic_gio32_arb_config(int, uint32_t);
     73  1.22    rumble #endif
     74  1.22    rumble 
     75  1.22    rumble 
     76   1.1     soren struct gio_softc {
     77   1.1     soren 	struct	device sc_dev;
     78   1.1     soren };
     79   1.1     soren 
     80   1.1     soren static int	gio_match(struct device *, struct cfdata *, void *);
     81   1.1     soren static void	gio_attach(struct device *, struct device *, void *);
     82   1.1     soren static int	gio_print(void *, const char *);
     83  1.19  drochner static int	gio_search(struct device *, struct cfdata *,
     84  1.20  drochner 			   const int *, void *);
     85  1.18  drochner static int	gio_submatch(struct device *, struct cfdata *,
     86  1.20  drochner 			     const int *, void *);
     87   1.1     soren 
     88   1.6   thorpej CFATTACH_DECL(gio, sizeof(struct gio_softc),
     89   1.7   thorpej     gio_match, gio_attach, NULL, NULL);
     90   1.1     soren 
     91  1.24    rumble struct gio_probe {
     92  1.24    rumble 	uint32_t slot;
     93  1.24    rumble 	uint32_t base;
     94  1.24    rumble 	uint32_t mach_type;
     95  1.24    rumble 	uint32_t mach_subtype;
     96  1.12  lonewolf };
     97  1.12  lonewolf 
     98  1.24    rumble /*
     99  1.24    rumble  * Expansion Slot Base Addresses
    100  1.24    rumble  *
    101  1.24    rumble  * IP12, IP20 and IP24 have two GIO connectors: GIO_SLOT_EXP0 and
    102  1.24    rumble  * GIO_SLOT_EXP1.
    103  1.24    rumble  *
    104  1.24    rumble  * On IP24 these slots exist on the graphics board or the IOPLUS
    105  1.24    rumble  * "mezzanine" on Indy and Challenge S, respectively. The IOPLUS or
    106  1.24    rumble  * graphics board connects to the mainboard via a single GIO64 connector.
    107  1.24    rumble  *
    108  1.24    rumble  * IP22 has either three or four physical connectors, but only two
    109  1.24    rumble  * electrically distinct slots: GIO_SLOT_GFX and GIO_SLOT_EXP0.
    110  1.24    rumble  *
    111  1.24    rumble  * It should also be noted that DMA is (mostly) not supported in Challenge
    112  1.24    rumble  * S's GIO_SLOT_EXP1. See gio(4) for the story.
    113  1.24    rumble  */
    114  1.24    rumble static const struct gio_probe slot_bases[] = {
    115  1.24    rumble 	{ GIO_SLOT_GFX,  0x1f000000, MACH_SGI_IP22, MACH_SGI_IP22_FULLHOUSE },
    116  1.24    rumble 
    117  1.24    rumble 	{ GIO_SLOT_EXP0, 0x1f400000, MACH_SGI_IP12, -1 },
    118  1.24    rumble 	{ GIO_SLOT_EXP0, 0x1f400000, MACH_SGI_IP20, -1 },
    119  1.24    rumble 	{ GIO_SLOT_EXP0, 0x1f400000, MACH_SGI_IP22, -1 },
    120  1.24    rumble 
    121  1.24    rumble 	{ GIO_SLOT_EXP1, 0x1f600000, MACH_SGI_IP12, -1 },
    122  1.24    rumble 	{ GIO_SLOT_EXP1, 0x1f600000, MACH_SGI_IP20, -1 },
    123  1.24    rumble 	{ GIO_SLOT_EXP1, 0x1f600000, MACH_SGI_IP22, MACH_SGI_IP22_GUINNESS },
    124  1.24    rumble 
    125  1.24    rumble 	{ 0, 0, 0, 0 }
    126  1.24    rumble };
    127  1.24    rumble 
    128  1.24    rumble /*
    129  1.24    rumble  * Graphic Board Base Addresses
    130  1.24    rumble  *
    131  1.24    rumble  * Graphics boards are not treated like expansion slot cards. Their base
    132  1.24    rumble  * addresses do not necessarily correspond to GIO slot addresses and they
    133  1.24    rumble  * do not contain product identification words.
    134  1.24    rumble  */
    135  1.24    rumble static const struct gio_probe gfx_bases[] = {
    136  1.24    rumble 	/* grtwo, and newport on IP22 */
    137  1.24    rumble 	{ -1, 0x1f000000, MACH_SGI_IP12, -1 },
    138  1.24    rumble 	{ -1, 0x1f000000, MACH_SGI_IP20, -1 },
    139  1.24    rumble 	{ -1, 0x1f000000, MACH_SGI_IP22, -1 },
    140  1.24    rumble 
    141  1.24    rumble 	/* light */
    142  1.24    rumble 	{ -1, 0x1f3f0000, MACH_SGI_IP12, -1 },
    143  1.24    rumble 	{ -1, 0x1f3f0000, MACH_SGI_IP20, -1 },
    144  1.24    rumble 
    145  1.24    rumble 	/* light (dual headed) */
    146  1.24    rumble 	{ -1, 0x1f3f8000, MACH_SGI_IP12, -1 },
    147  1.24    rumble 	{ -1, 0x1f3f8000, MACH_SGI_IP20, -1 },
    148  1.24    rumble 
    149  1.24    rumble 	/* grtwo, and newport on IP22 */
    150  1.24    rumble 	{ -1, 0x1f400000, MACH_SGI_IP12, -1 },
    151  1.24    rumble 	{ -1, 0x1f400000, MACH_SGI_IP20, -1 },
    152  1.24    rumble 	{ -1, 0x1f400000, MACH_SGI_IP22, -1 },
    153  1.24    rumble 
    154  1.24    rumble 	/* grtwo */
    155  1.24    rumble 	{ -1, 0x1f600000, MACH_SGI_IP12, -1 },
    156  1.24    rumble 	{ -1, 0x1f600000, MACH_SGI_IP20, -1 },
    157  1.24    rumble 	{ -1, 0x1f600000, MACH_SGI_IP22, -1 },
    158  1.24    rumble 
    159  1.24    rumble 	/* newport */
    160  1.24    rumble 	{ -1, 0x1f800000, MACH_SGI_IP22, MACH_SGI_IP22_FULLHOUSE },
    161  1.24    rumble 
    162  1.24    rumble 	/* newport */
    163  1.24    rumble 	{ -1, 0x1fc00000, MACH_SGI_IP22, MACH_SGI_IP22_FULLHOUSE },
    164  1.24    rumble 
    165  1.24    rumble 	{ 0, 0, 0, 0 }
    166  1.24    rumble };
    167  1.24    rumble 
    168  1.24    rumble /* maximum number of graphics boards possible (arbitrarily large estimate) */
    169  1.24    rumble #define MAXGFX 8
    170  1.24    rumble 
    171   1.1     soren static int
    172  1.12  lonewolf gio_match(struct device *parent, struct cfdata *match, void *aux)
    173   1.1     soren {
    174   1.1     soren 
    175   1.2    simonb 	return 1;
    176   1.1     soren }
    177   1.1     soren 
    178   1.1     soren static void
    179  1.12  lonewolf gio_attach(struct device *parent, struct device *self, void *aux)
    180   1.1     soren {
    181   1.1     soren 	struct gio_attach_args ga;
    182  1.24    rumble 	uint32_t gfx[MAXGFX];
    183  1.24    rumble 	int i, j, ngfx;
    184   1.1     soren 
    185   1.1     soren 	printf("\n");
    186   1.1     soren 
    187  1.24    rumble 	ngfx = 0;
    188  1.24    rumble 	memset(gfx, 0, sizeof(gfx));
    189  1.24    rumble 
    190  1.24    rumble 	/*
    191  1.24    rumble 	 * Attach graphics devices first. They do not contain a Product
    192  1.24    rumble 	 * Identification Word and have no slot number.
    193  1.24    rumble 	 *
    194  1.24    rumble 	 * Record addresses to which graphics devices attach so that
    195  1.24    rumble 	 * we do not confuse them with expansion slots, should the
    196  1.24    rumble 	 * addresses coincide.
    197  1.24    rumble 	 */
    198  1.24    rumble 	for (i = 0; gfx_bases[i].base != 0; i++) {
    199  1.24    rumble 		/* skip slots that don't apply to us */
    200  1.24    rumble 		if (gfx_bases[i].mach_type != mach_type)
    201  1.24    rumble 			continue;
    202  1.24    rumble 
    203  1.24    rumble 		if (gfx_bases[i].mach_subtype != -1 &&
    204  1.24    rumble 		    gfx_bases[i].mach_subtype != mach_subtype)
    205  1.24    rumble 			continue;
    206  1.24    rumble 
    207  1.24    rumble 		ga.ga_slot = -1;
    208  1.24    rumble 		ga.ga_addr = gfx_bases[i].base;
    209  1.24    rumble 		ga.ga_iot = SGIMIPS_BUS_SPACE_NORMAL;
    210  1.24    rumble 		ga.ga_ioh = MIPS_PHYS_TO_KSEG1(ga.ga_addr);
    211  1.22    rumble 		ga.ga_dmat = &sgimips_default_bus_dma_tag;
    212  1.24    rumble 		ga.ga_product = -1;
    213  1.24    rumble 
    214  1.24    rumble 		if (badaddr((void *)ga.ga_ioh, sizeof(uint32_t)))
    215  1.24    rumble 			continue;
    216  1.12  lonewolf 
    217  1.24    rumble 		if (config_found_sm_loc(self, "gio", NULL, &ga, gio_print,
    218  1.24    rumble 		    gio_submatch)) {
    219  1.24    rumble 			if (ngfx == MAXGFX)
    220  1.24    rumble 				panic("gio_attach: MAXGFX");
    221  1.24    rumble 			gfx[ngfx++] = gfx_bases[i].base;
    222  1.24    rumble 		}
    223  1.24    rumble 	}
    224  1.24    rumble 
    225  1.24    rumble 	/*
    226  1.24    rumble 	 * Now attach any GIO expansion cards.
    227  1.24    rumble 	 *
    228  1.24    rumble 	 * Be sure to skip any addresses to which a graphics device has
    229  1.24    rumble 	 * already been attached.
    230  1.24    rumble 	 */
    231  1.24    rumble 	for (i = 0; slot_bases[i].base != 0; i++) {
    232  1.24    rumble 		boolean_t skip = FALSE;
    233  1.24    rumble 
    234  1.24    rumble 		/* skip slots that don't apply to us */
    235  1.24    rumble 		if (slot_bases[i].mach_type != mach_type)
    236  1.12  lonewolf 			continue;
    237  1.24    rumble 
    238  1.24    rumble 		if (slot_bases[i].mach_subtype != -1 &&
    239  1.24    rumble 		    slot_bases[i].mach_subtype != mach_subtype)
    240  1.24    rumble 			continue;
    241  1.24    rumble 
    242  1.24    rumble 		for (j = 0; j < ngfx; j++) {
    243  1.24    rumble 			if (slot_bases[i].base == gfx[j]) {
    244  1.24    rumble 				skip = TRUE;
    245  1.24    rumble 				break;
    246  1.24    rumble 			}
    247  1.24    rumble 		}
    248  1.24    rumble 		if (skip)
    249  1.24    rumble 			continue;
    250  1.24    rumble 
    251  1.24    rumble 		ga.ga_slot = slot_bases[i].slot;
    252  1.24    rumble 		ga.ga_addr = slot_bases[i].base;
    253  1.24    rumble 		ga.ga_iot = SGIMIPS_BUS_SPACE_NORMAL;
    254  1.24    rumble 		ga.ga_ioh = MIPS_PHYS_TO_KSEG1(ga.ga_addr);
    255  1.24    rumble 		ga.ga_dmat = &sgimips_default_bus_dma_tag;
    256  1.24    rumble 
    257  1.24    rumble 		if (badaddr((void *)ga.ga_ioh, sizeof(uint32_t)))
    258  1.12  lonewolf 			continue;
    259  1.12  lonewolf 
    260  1.12  lonewolf 		ga.ga_product = bus_space_read_4(ga.ga_iot, ga.ga_ioh, 0);
    261  1.12  lonewolf 
    262  1.18  drochner 		config_found_sm_loc(self, "gio", NULL, &ga, gio_print,
    263  1.24    rumble 		    gio_submatch);
    264  1.12  lonewolf 	}
    265  1.12  lonewolf 
    266  1.19  drochner 	config_search_ia(gio_search, self, "gio", &ga);
    267   1.1     soren }
    268   1.1     soren 
    269   1.1     soren static int
    270  1.12  lonewolf gio_print(void *aux, const char *pnp)
    271   1.1     soren {
    272   1.1     soren 	struct gio_attach_args *ga = aux;
    273  1.13    sekiya 	int i = 0;
    274   1.1     soren 
    275  1.24    rumble 	/* gfx probe */
    276  1.24    rumble 	if (ga->ga_product == -1)
    277  1.24    rumble 		return (QUIET);
    278  1.24    rumble 
    279  1.12  lonewolf 	if (pnp != NULL) {
    280  1.12  lonewolf 	  	int product, revision;
    281  1.12  lonewolf 
    282  1.12  lonewolf 		product = GIO_PRODUCT_PRODUCTID(ga->ga_product);
    283  1.12  lonewolf 
    284  1.12  lonewolf 		if (GIO_PRODUCT_32BIT_ID(ga->ga_product))
    285  1.12  lonewolf 			revision = GIO_PRODUCT_REVISION(ga->ga_product);
    286  1.12  lonewolf 		else
    287  1.12  lonewolf 			revision = 0;
    288  1.12  lonewolf 
    289  1.13    sekiya 		while (gio_knowndevs[i].productid != 0) {
    290  1.13    sekiya 			if (gio_knowndevs[i].productid == product) {
    291  1.13    sekiya 				aprint_normal("%s", gio_knowndevs[i].product);
    292  1.13    sekiya 				break;
    293  1.13    sekiya 			}
    294  1.13    sekiya 			i++;
    295  1.13    sekiya 		}
    296  1.13    sekiya 
    297  1.13    sekiya 		if (gio_knowndevs[i].productid == 0)
    298  1.13    sekiya 			aprint_normal("unknown GIO card");
    299  1.13    sekiya 
    300  1.13    sekiya 		aprint_normal(" (product 0x%02x revision 0x%02x) at %s",
    301  1.12  lonewolf 		    product, revision, pnp);
    302  1.12  lonewolf 	}
    303   1.1     soren 
    304   1.1     soren 	if (ga->ga_slot != GIOCF_SLOT_DEFAULT)
    305   1.9   thorpej 		aprint_normal(" slot %d", ga->ga_slot);
    306   1.8   thorpej 	if (ga->ga_addr != (uint32_t) GIOCF_ADDR_DEFAULT)
    307   1.9   thorpej 		aprint_normal(" addr 0x%x", ga->ga_addr);
    308   1.1     soren 
    309   1.1     soren 	return UNCONF;
    310   1.1     soren }
    311   1.1     soren 
    312   1.1     soren static int
    313  1.19  drochner gio_search(struct device *parent, struct cfdata *cf,
    314  1.20  drochner 	   const int *ldesc, void *aux)
    315   1.2    simonb {
    316   1.1     soren 	struct gio_attach_args *ga = aux;
    317   1.1     soren 
    318   1.1     soren 	do {
    319  1.12  lonewolf 		/* Handled by direct configuration, so skip here */
    320  1.12  lonewolf 		if (cf->cf_loc[GIOCF_ADDR] == GIOCF_ADDR_DEFAULT)
    321  1.12  lonewolf 			return 0;
    322  1.12  lonewolf 
    323   1.1     soren 		ga->ga_slot = cf->cf_loc[GIOCF_SLOT];
    324   1.1     soren 		ga->ga_addr = cf->cf_loc[GIOCF_ADDR];
    325   1.1     soren 		ga->ga_iot = 0;
    326   1.1     soren 		ga->ga_ioh = MIPS_PHYS_TO_KSEG1(ga->ga_addr);
    327  1.12  lonewolf 
    328   1.4   thorpej 		if (config_match(parent, cf, ga) > 0)
    329   1.1     soren 			config_attach(parent, cf, ga, gio_print);
    330   1.1     soren 	} while (cf->cf_fstate == FSTATE_STAR);
    331   1.1     soren 
    332   1.1     soren 	return 0;
    333  1.12  lonewolf }
    334  1.12  lonewolf 
    335  1.12  lonewolf static int
    336  1.18  drochner gio_submatch(struct device *parent, struct cfdata *cf,
    337  1.20  drochner 	     const int *ldesc, void *aux)
    338  1.12  lonewolf {
    339  1.12  lonewolf 	struct gio_attach_args *ga = aux;
    340  1.12  lonewolf 
    341  1.12  lonewolf 	if (cf->cf_loc[GIOCF_SLOT] != GIOCF_SLOT_DEFAULT &&
    342  1.12  lonewolf 	    cf->cf_loc[GIOCF_SLOT] != ga->ga_slot)
    343  1.12  lonewolf 		return 0;
    344  1.12  lonewolf 
    345  1.12  lonewolf 	if (cf->cf_loc[GIOCF_ADDR] != GIOCF_ADDR_DEFAULT &&
    346  1.12  lonewolf 	    cf->cf_loc[GIOCF_ADDR] != ga->ga_addr)
    347  1.12  lonewolf 		return 0;
    348  1.12  lonewolf 
    349  1.12  lonewolf 	return config_match(parent, cf, aux);
    350  1.12  lonewolf }
    351  1.12  lonewolf 
    352  1.12  lonewolf int
    353  1.12  lonewolf gio_cnattach()
    354  1.12  lonewolf {
    355  1.12  lonewolf 	struct gio_attach_args ga;
    356  1.12  lonewolf 	int i;
    357  1.24    rumble 
    358  1.24    rumble 	for (i = 0; gfx_bases[i].base != 0; i++) {
    359  1.24    rumble 		/* skip bases that don't apply to us */
    360  1.24    rumble 		if (gfx_bases[i].mach_type != mach_type)
    361  1.24    rumble 			continue;
    362  1.24    rumble 
    363  1.24    rumble 		if (gfx_bases[i].mach_subtype != -1 &&
    364  1.24    rumble 		    gfx_bases[i].mach_subtype != mach_subtype)
    365  1.12  lonewolf 			continue;
    366  1.12  lonewolf 
    367  1.24    rumble 		ga.ga_slot = -1;
    368  1.24    rumble 		ga.ga_addr = gfx_bases[i].base;
    369  1.24    rumble 		ga.ga_iot = SGIMIPS_BUS_SPACE_NORMAL;
    370  1.24    rumble 		ga.ga_ioh = MIPS_PHYS_TO_KSEG1(ga.ga_addr);
    371  1.24    rumble 		ga.ga_dmat = &sgimips_default_bus_dma_tag;
    372  1.24    rumble 		ga.ga_product = -1;
    373  1.24    rumble 
    374  1.12  lonewolf 		if (badaddr((void *)ga.ga_ioh,sizeof(uint32_t)))
    375  1.12  lonewolf 			continue;
    376  1.12  lonewolf 
    377  1.15    sekiya #if (NGRTWO > 0)
    378  1.15    sekiya 		if (grtwo_cnattach(&ga) == 0)
    379  1.15    sekiya 			return 0;
    380  1.15    sekiya #endif
    381  1.15    sekiya 
    382  1.12  lonewolf #if (NNEWPORT > 0)
    383  1.12  lonewolf 		if (newport_cnattach(&ga) == 0)
    384  1.12  lonewolf 			return 0;
    385  1.12  lonewolf #endif
    386  1.15    sekiya 
    387  1.12  lonewolf 	}
    388  1.12  lonewolf 
    389  1.12  lonewolf 	return ENXIO;
    390   1.1     soren }
    391  1.22    rumble 
    392  1.22    rumble /*
    393  1.22    rumble  * Devices living in the expansion slots must enable or disable some
    394  1.22    rumble  * GIO arbiter settings. This is accomplished via imc(4) or pic(4)
    395  1.22    rumble  * registers, depending on the machine in question.
    396  1.22    rumble  */
    397  1.22    rumble int
    398  1.22    rumble gio_arb_config(int slot, uint32_t flags)
    399  1.22    rumble {
    400  1.22    rumble 
    401  1.22    rumble 	if (flags == 0)
    402  1.22    rumble 		return (EINVAL);
    403  1.22    rumble 
    404  1.22    rumble 	if (flags & ~(GIO_ARB_RT | GIO_ARB_LB | GIO_ARB_MST | GIO_ARB_SLV |
    405  1.22    rumble 	    GIO_ARB_PIPE | GIO_ARB_NOPIPE))
    406  1.22    rumble 		return (EINVAL);
    407  1.22    rumble 
    408  1.22    rumble 	if (((flags & GIO_ARB_RT)   && (flags & GIO_ARB_LB))  ||
    409  1.22    rumble 	    ((flags & GIO_ARB_MST)  && (flags & GIO_ARB_SLV)) ||
    410  1.22    rumble 	    ((flags & GIO_ARB_PIPE) && (flags & GIO_ARB_NOPIPE)))
    411  1.22    rumble 		return (EINVAL);
    412  1.22    rumble 
    413  1.22    rumble #if (NPIC > 0)
    414  1.22    rumble 	if (mach_type == MACH_SGI_IP12)
    415  1.22    rumble 		return (pic_gio32_arb_config(slot, flags));
    416  1.22    rumble #endif
    417  1.22    rumble 
    418  1.22    rumble #if (NIMC > 0)
    419  1.22    rumble 	if (mach_type == MACH_SGI_IP20 || mach_type == MACH_SGI_IP22)
    420  1.22    rumble 		return (imc_gio64_arb_config(slot, flags));
    421  1.22    rumble #endif
    422  1.22    rumble 
    423  1.22    rumble 	return (EINVAL);
    424  1.22    rumble }
    425  1.22    rumble 
    426  1.22    rumble /*
    427  1.22    rumble  * Establish an interrupt handler for the specified slot.
    428  1.23    rumble  *
    429  1.23    rumble  * Indy and Challenge S have an interrupt per GIO slot. Indigo and Indigo2
    430  1.23    rumble  * share a single interrupt, however.
    431  1.22    rumble  */
    432  1.22    rumble void *
    433  1.22    rumble gio_intr_establish(int slot, int level, int (*func)(void *), void *arg)
    434  1.22    rumble {
    435  1.22    rumble 	int intr;
    436  1.22    rumble 
    437  1.22    rumble 	switch (mach_type) {
    438  1.22    rumble 	case MACH_SGI_IP12:
    439  1.22    rumble 	case MACH_SGI_IP20:
    440  1.22    rumble 		if (slot == GIO_SLOT_GFX)
    441  1.22    rumble 			panic("gio_intr_establish: slot %d", slot);
    442  1.23    rumble 		intr = 6;
    443  1.22    rumble 		break;
    444  1.22    rumble 
    445  1.22    rumble 	case MACH_SGI_IP22:
    446  1.22    rumble 		if (mach_subtype == MACH_SGI_IP22_FULLHOUSE) {
    447  1.22    rumble 			if (slot == GIO_SLOT_EXP1)
    448  1.22    rumble 				panic("gio_intr_establish: slot %d", slot);
    449  1.23    rumble 			intr = 6;
    450  1.22    rumble 		} else {
    451  1.22    rumble 			if (slot == GIO_SLOT_GFX)
    452  1.22    rumble 				panic("gio_intr_establish: slot %d", slot);
    453  1.22    rumble 			intr = (slot == GIO_SLOT_EXP0) ? 22 : 23;
    454  1.22    rumble 		}
    455  1.22    rumble 		break;
    456  1.22    rumble 
    457  1.22    rumble 	default:
    458  1.22    rumble 		panic("gio_intr_establish: mach_type");
    459  1.22    rumble 	}
    460  1.22    rumble 
    461  1.22    rumble 	return (cpu_intr_establish(intr, level, func, arg));
    462  1.22    rumble }
    463  1.22    rumble 
    464  1.22    rumble const char *
    465  1.22    rumble gio_product_string(int prid)
    466  1.22    rumble {
    467  1.22    rumble 	int i;
    468  1.22    rumble 
    469  1.22    rumble 	for (i = 0; gio_knowndevs[i].product != NULL; i++)
    470  1.22    rumble 		if (gio_knowndevs[i].productid == prid)
    471  1.22    rumble 			return (gio_knowndevs[i].product);
    472  1.22    rumble 
    473  1.22    rumble 	return (NULL);
    474  1.22    rumble }
    475