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ahc_cardbus.c revision 1.9
      1  1.9  thorpej /*	$NetBSD: ahc_cardbus.c,v 1.9 2002/10/02 16:33:40 thorpej Exp $	*/
      2  1.1  thorpej 
      3  1.1  thorpej /*-
      4  1.1  thorpej  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  1.1  thorpej  * All rights reserved.
      6  1.1  thorpej  *
      7  1.1  thorpej  * This code is derived from software contributed to The NetBSD Foundation
      8  1.1  thorpej  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9  1.1  thorpej  * NASA Ames Research Center.
     10  1.1  thorpej  *
     11  1.1  thorpej  * Redistribution and use in source and binary forms, with or without
     12  1.1  thorpej  * modification, are permitted provided that the following conditions
     13  1.1  thorpej  * are met:
     14  1.1  thorpej  * 1. Redistributions of source code must retain the above copyright
     15  1.1  thorpej  *    notice, this list of conditions and the following disclaimer.
     16  1.1  thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     17  1.1  thorpej  *    notice, this list of conditions and the following disclaimer in the
     18  1.1  thorpej  *    documentation and/or other materials provided with the distribution.
     19  1.1  thorpej  * 3. All advertising materials mentioning features or use of this software
     20  1.1  thorpej  *    must display the following acknowledgement:
     21  1.1  thorpej  *	This product includes software developed by the NetBSD
     22  1.1  thorpej  *	Foundation, Inc. and its contributors.
     23  1.1  thorpej  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  1.1  thorpej  *    contributors may be used to endorse or promote products derived
     25  1.1  thorpej  *    from this software without specific prior written permission.
     26  1.1  thorpej  *
     27  1.1  thorpej  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  1.1  thorpej  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  1.1  thorpej  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  1.1  thorpej  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  1.1  thorpej  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  1.1  thorpej  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  1.1  thorpej  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  1.1  thorpej  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  1.1  thorpej  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  1.1  thorpej  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  1.1  thorpej  * POSSIBILITY OF SUCH DAMAGE.
     38  1.1  thorpej  */
     39  1.1  thorpej 
     40  1.1  thorpej /*
     41  1.1  thorpej  * CardBus front-end for the Adaptec AIC-7xxx family of SCSI controllers.
     42  1.1  thorpej  *
     43  1.1  thorpej  * TODO:
     44  1.1  thorpej  *	- power management
     45  1.1  thorpej  */
     46  1.5    lukem 
     47  1.5    lukem #include <sys/cdefs.h>
     48  1.9  thorpej __KERNEL_RCSID(0, "$NetBSD: ahc_cardbus.c,v 1.9 2002/10/02 16:33:40 thorpej Exp $");
     49  1.1  thorpej 
     50  1.1  thorpej #include <sys/param.h>
     51  1.1  thorpej #include <sys/systm.h>
     52  1.1  thorpej #include <sys/malloc.h>
     53  1.1  thorpej #include <sys/kernel.h>
     54  1.1  thorpej #include <sys/queue.h>
     55  1.1  thorpej #include <sys/device.h>
     56  1.1  thorpej 
     57  1.1  thorpej #include <machine/bus.h>
     58  1.1  thorpej #include <machine/intr.h>
     59  1.1  thorpej 
     60  1.1  thorpej #include <dev/scsipi/scsi_all.h>
     61  1.1  thorpej #include <dev/scsipi/scsipi_all.h>
     62  1.1  thorpej #include <dev/scsipi/scsiconf.h>
     63  1.1  thorpej 
     64  1.1  thorpej #include <dev/pci/pcireg.h>
     65  1.1  thorpej 
     66  1.1  thorpej #include <dev/cardbus/cardbusvar.h>
     67  1.1  thorpej #include <dev/cardbus/cardbusdevs.h>
     68  1.1  thorpej 
     69  1.1  thorpej #include <dev/ic/aic7xxxvar.h>
     70  1.1  thorpej 
     71  1.3    enami #include <dev/microcode/aic7xxx/aic7xxx_reg.h>
     72  1.3    enami 
     73  1.1  thorpej #define	AHC_CARDBUS_IOBA	0x10
     74  1.1  thorpej #define	AHC_CARDBUS_MMBA	0x14
     75  1.1  thorpej 
     76  1.1  thorpej struct ahc_cardbus_softc {
     77  1.2     fvdl 	struct ahc_softc sc_ahc;	/* real AHC */
     78  1.1  thorpej 
     79  1.1  thorpej 	/* CardBus-specific goo. */
     80  1.1  thorpej 	cardbus_devfunc_t sc_ct;	/* our CardBus devfuncs */
     81  1.1  thorpej 	int	sc_intrline;		/* our interrupt line */
     82  1.1  thorpej 	cardbustag_t sc_tag;
     83  1.1  thorpej 
     84  1.1  thorpej 	int	sc_cbenable;		/* what CardBus access type to enable */
     85  1.1  thorpej 	int	sc_csr;			/* CSR bits */
     86  1.6   ichiro 	bus_size_t sc_size;
     87  1.1  thorpej };
     88  1.1  thorpej 
     89  1.1  thorpej int	ahc_cardbus_match __P((struct device *, struct cfdata *, void *));
     90  1.1  thorpej void	ahc_cardbus_attach __P((struct device *, struct device *, void *));
     91  1.6   ichiro int	ahc_cardbus_detach __P((struct device *, int));
     92  1.1  thorpej 
     93  1.8  thorpej CFATTACH_DECL(ahc_cardbus, sizeof(struct ahc_cardbus_softc),
     94  1.9  thorpej     ahc_cardbus_match, ahc_cardbus_attach, ahc_cardbus_detach, ahc_activate);
     95  1.1  thorpej 
     96  1.1  thorpej int
     97  1.1  thorpej ahc_cardbus_match(parent, match, aux)
     98  1.1  thorpej 	struct device *parent;
     99  1.1  thorpej 	struct cfdata *match;
    100  1.1  thorpej 	void *aux;
    101  1.1  thorpej {
    102  1.1  thorpej 	struct cardbus_attach_args *ca = aux;
    103  1.1  thorpej 
    104  1.1  thorpej 	if (CARDBUS_VENDOR(ca->ca_id) == CARDBUS_VENDOR_ADP &&
    105  1.1  thorpej 	    CARDBUS_PRODUCT(ca->ca_id) == CARDBUS_PRODUCT_ADP_1480)
    106  1.1  thorpej 		return (1);
    107  1.1  thorpej 
    108  1.1  thorpej 	return (0);
    109  1.1  thorpej }
    110  1.1  thorpej 
    111  1.1  thorpej void
    112  1.1  thorpej ahc_cardbus_attach(parent, self, aux)
    113  1.1  thorpej 	struct device *parent, *self;
    114  1.1  thorpej 	void *aux;
    115  1.1  thorpej {
    116  1.1  thorpej 	struct cardbus_attach_args *ca = aux;
    117  1.1  thorpej 	struct ahc_cardbus_softc *csc = (void *) self;
    118  1.2     fvdl 	struct ahc_softc *ahc = &csc->sc_ahc;
    119  1.1  thorpej 	cardbus_devfunc_t ct = ca->ca_ct;
    120  1.1  thorpej 	cardbus_chipset_tag_t cc = ct->ct_cc;
    121  1.1  thorpej 	cardbus_function_tag_t cf = ct->ct_cf;
    122  1.1  thorpej 	bus_space_tag_t bst;
    123  1.1  thorpej 	bus_space_handle_t bsh;
    124  1.1  thorpej 	pcireg_t reg;
    125  1.2     fvdl 	u_int sxfrctl1 = 0;
    126  1.2     fvdl 	ahc_chip ahc_t = AHC_NONE;
    127  1.2     fvdl 	ahc_feature ahc_fe = AHC_FENONE;
    128  1.2     fvdl 	ahc_flag ahc_f = AHC_FNONE;
    129  1.2     fvdl 
    130  1.1  thorpej 
    131  1.1  thorpej 	csc->sc_ct = ct;
    132  1.1  thorpej 	csc->sc_tag = ca->ca_tag;
    133  1.1  thorpej 	csc->sc_intrline = ca->ca_intrline;
    134  1.1  thorpej 
    135  1.1  thorpej 	printf(": Adaptec ADP-1480 SCSI\n");
    136  1.1  thorpej 
    137  1.1  thorpej 	/*
    138  1.1  thorpej 	 * Map the device.
    139  1.1  thorpej 	 */
    140  1.1  thorpej 	csc->sc_csr = PCI_COMMAND_MASTER_ENABLE;
    141  1.1  thorpej 	if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_MMBA,
    142  1.1  thorpej 	    PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
    143  1.6   ichiro 	    &bst, &bsh, NULL, &csc->sc_size) == 0) {
    144  1.1  thorpej 		csc->sc_cbenable = CARDBUS_MEM_ENABLE;
    145  1.1  thorpej 		csc->sc_csr |= PCI_COMMAND_MEM_ENABLE;
    146  1.1  thorpej 	} else if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_IOBA,
    147  1.6   ichiro 	    PCI_MAPREG_TYPE_IO, 0, &bst, &bsh, NULL, &csc->sc_size) == 0) {
    148  1.1  thorpej 		csc->sc_cbenable = CARDBUS_IO_ENABLE;
    149  1.1  thorpej 		csc->sc_csr |= PCI_COMMAND_IO_ENABLE;
    150  1.1  thorpej 	} else {
    151  1.1  thorpej 		printf("%s: unable to map device registers\n",
    152  1.1  thorpej 		    ahc_name(ahc));
    153  1.1  thorpej 		return;
    154  1.1  thorpej 	}
    155  1.1  thorpej 
    156  1.1  thorpej 	/* Make sure the right access type is on the CardBus bridge. */
    157  1.1  thorpej 	(*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cbenable);
    158  1.1  thorpej 	(*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
    159  1.1  thorpej 
    160  1.1  thorpej 	/* Enable the appropriate bits in the PCI CSR. */
    161  1.1  thorpej 	reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_COMMAND_STATUS_REG);
    162  1.1  thorpej 	reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE);
    163  1.1  thorpej 	reg |= csc->sc_csr;
    164  1.1  thorpej 	cardbus_conf_write(cc, cf, ca->ca_tag, PCI_COMMAND_STATUS_REG, reg);
    165  1.1  thorpej 
    166  1.1  thorpej 	/*
    167  1.1  thorpej 	 * Make sure the latency timer is set to some reasonable
    168  1.1  thorpej 	 * value.
    169  1.1  thorpej 	 */
    170  1.1  thorpej 	reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_BHLC_REG);
    171  1.1  thorpej 	if (PCI_LATTIMER(reg) < 0x20) {
    172  1.1  thorpej 		reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
    173  1.1  thorpej 		reg |= (0x20 << PCI_LATTIMER_SHIFT);
    174  1.1  thorpej 		cardbus_conf_write(cc, cf, ca->ca_tag, PCI_BHLC_REG, reg);
    175  1.1  thorpej 	}
    176  1.1  thorpej 
    177  1.6   ichiro 	ahc->tag = bst;
    178  1.6   ichiro 	ahc->bsh = bsh;
    179  1.6   ichiro 
    180  1.1  thorpej 	/*
    181  1.1  thorpej 	 * ADP-1480 is always an AIC-7860.
    182  1.1  thorpej 	 */
    183  1.1  thorpej 	ahc_t = AHC_AIC7860;
    184  1.3    enami 	ahc_fe = AHC_AIC7860_FE;
    185  1.1  thorpej 
    186  1.1  thorpej 	/*
    187  1.1  thorpej 	 * On all CardBus adapters, we allow SCB paging.
    188  1.1  thorpej 	 */
    189  1.2     fvdl 	ahc_f = AHC_PAGESCBS;
    190  1.2     fvdl 
    191  1.3    enami 	if (ahc_alloc(ahc, bsh, bst, ca->ca_dmat, ahc_t | AHC_PCI /* XXX */,
    192  1.3    enami 	    ahc_fe, ahc_f) < 0) {
    193  1.2     fvdl 		printf("%s: unable to initialize softc\n", ahc_name(ahc));
    194  1.2     fvdl 		return;
    195  1.2     fvdl 	}
    196  1.2     fvdl 
    197  1.2     fvdl 	ahc->channel = 'A';
    198  1.1  thorpej 
    199  1.3    enami 	ahc_reset(ahc);
    200  1.1  thorpej 
    201  1.1  thorpej 	/*
    202  1.1  thorpej 	 * Establish the interrupt.
    203  1.1  thorpej 	 */
    204  1.3    enami 	ahc->ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_BIO,
    205  1.1  thorpej 	    ahc_intr, ahc);
    206  1.3    enami 	if (ahc->ih == NULL) {
    207  1.1  thorpej 		printf("%s: unable to establish interrupt at %d\n",
    208  1.1  thorpej 		    ahc_name(ahc), ca->ca_intrline);
    209  1.1  thorpej 		return;
    210  1.1  thorpej 	}
    211  1.1  thorpej 	printf("%s: interrupting at %d\n", ahc_name(ahc), ca->ca_intrline);
    212  1.1  thorpej 
    213  1.1  thorpej 	/*
    214  1.1  thorpej 	 * Do chip-specific initialization.
    215  1.1  thorpej 	 */
    216  1.1  thorpej 	{
    217  1.1  thorpej 		u_char sblkctl;
    218  1.1  thorpej 		const char *id_string;
    219  1.1  thorpej 
    220  1.3    enami 		switch (ahc->chip & AHC_CHIPID_MASK) {
    221  1.1  thorpej 		case AHC_AIC7860:
    222  1.1  thorpej 			id_string = "aic7860 ";
    223  1.3    enami 			check_extport(ahc, &sxfrctl1);
    224  1.1  thorpej 			break;
    225  1.1  thorpej 
    226  1.1  thorpej 		default:
    227  1.1  thorpej 			printf("%s: unknown controller type\n", ahc_name(ahc));
    228  1.1  thorpej 			ahc_free(ahc);
    229  1.1  thorpej 			return;
    230  1.1  thorpej 		}
    231  1.1  thorpej 
    232  1.1  thorpej 		/*
    233  1.1  thorpej 		 * Take the LED out of diagnostic mode.
    234  1.1  thorpej 		 */
    235  1.2     fvdl 		sblkctl = ahc_inb(ahc, SBLKCTL);
    236  1.2     fvdl 		ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
    237  1.1  thorpej 
    238  1.1  thorpej 		/*
    239  1.1  thorpej 		 * I don't know where this is set in the SEEPROM or by the
    240  1.1  thorpej 		 * BIOS, so we default to 100%.
    241  1.1  thorpej 		 */
    242  1.2     fvdl 		ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
    243  1.1  thorpej 
    244  1.1  thorpej 		if (ahc->flags & AHC_USEDEFAULTS) {
    245  1.1  thorpej 			/*
    246  1.1  thorpej 			 * We can't "use defaults", as we have no way
    247  1.1  thorpej 			 * of knowing what default settings hould be.
    248  1.1  thorpej 			 */
    249  1.1  thorpej 			printf("%s: CardBus device requires an SEEPROM\n",
    250  1.1  thorpej 			    ahc_name(ahc));
    251  1.1  thorpej 			return;
    252  1.1  thorpej 		}
    253  1.1  thorpej 
    254  1.1  thorpej 		printf("%s: %s", ahc_name(ahc), id_string);
    255  1.1  thorpej 	}
    256  1.2     fvdl 
    257  1.2     fvdl 	/*
    258  1.2     fvdl 	 * XXX does this card have external SRAM? - fvdl
    259  1.2     fvdl 	 */
    260  1.2     fvdl 
    261  1.2     fvdl 	/*
    262  1.2     fvdl 	 * Record our termination setting for the
    263  1.2     fvdl 	 * generic initialization routine.
    264  1.2     fvdl 	 */
    265  1.2     fvdl         if ((sxfrctl1 & STPWEN) != 0)
    266  1.2     fvdl 		ahc->flags |= AHC_TERM_ENB_A;
    267  1.1  thorpej 
    268  1.1  thorpej 	if (ahc_init(ahc)) {
    269  1.1  thorpej 		ahc_free(ahc);
    270  1.1  thorpej 		return;
    271  1.1  thorpej 	}
    272  1.1  thorpej 
    273  1.1  thorpej 	ahc_attach(ahc);
    274  1.6   ichiro }
    275  1.6   ichiro 
    276  1.6   ichiro int
    277  1.6   ichiro ahc_cardbus_detach(self, flags)
    278  1.6   ichiro 	struct device *self;
    279  1.6   ichiro 	int flags;
    280  1.6   ichiro {
    281  1.6   ichiro 	struct ahc_cardbus_softc *csc = (void*)self;
    282  1.6   ichiro 	struct ahc_softc *ahc = &csc->sc_ahc;
    283  1.6   ichiro 
    284  1.6   ichiro 	int rv;
    285  1.6   ichiro 
    286  1.6   ichiro 	rv = ahc_detach(ahc, flags);
    287  1.6   ichiro 	if (rv)
    288  1.6   ichiro 		return rv;
    289  1.6   ichiro 
    290  1.6   ichiro 	if (ahc->ih) {
    291  1.6   ichiro 		cardbus_intr_disestablish(csc->sc_ct->ct_cc,
    292  1.6   ichiro 					  csc->sc_ct->ct_cf, ahc->ih);
    293  1.6   ichiro 		ahc->ih = 0;
    294  1.6   ichiro 	}
    295  1.6   ichiro 
    296  1.6   ichiro 	if (csc->sc_cbenable) {
    297  1.6   ichiro 		if (csc->sc_cbenable == CARDBUS_MEM_ENABLE)
    298  1.6   ichiro 			Cardbus_mapreg_unmap(csc->sc_ct, AHC_CARDBUS_MMBA,
    299  1.6   ichiro 				ahc->tag, ahc->bsh, csc->sc_size);
    300  1.6   ichiro 		else if (csc->sc_cbenable == CARDBUS_IO_ENABLE)
    301  1.6   ichiro 			Cardbus_mapreg_unmap(csc->sc_ct, AHC_CARDBUS_IOBA,
    302  1.6   ichiro 				ahc->tag, ahc->bsh, csc->sc_size);
    303  1.6   ichiro 	csc->sc_cbenable = 0;
    304  1.6   ichiro 	}
    305  1.6   ichiro 
    306  1.6   ichiro 	return (0);
    307  1.1  thorpej }
    308