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adw_pci.c revision 1.9
      1 /* $NetBSD: adw_pci.c,v 1.9 2001/11/13 07:48:40 lukem Exp $	 */
      2 
      3 /*
      4  * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Author: Baldassare Dante Profeta <dante (at) mclink.it>
      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 NetBSD
     20  *        Foundation, Inc. and its contributors.
     21  * 4. Neither the name of The NetBSD Foundation nor the names of its
     22  *    contributors may be used to endorse or promote products derived
     23  *    from this software without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     26  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 /*
     38  * Device probe and attach routines for the following
     39  * Advanced Systems Inc. SCSI controllers:
     40  *
     41  *      ABP-940UW	- Bus-Master PCI Ultra-Wide (253 CDB)
     42  *	ABP-940UW (68)	- Bus-Master PCI Ultra-Wide (253 CDB)
     43  *	ABP-940UWD	- Bus-Master PCI Ultra-Wide (253 CDB)
     44  *	ABP-970UW	- Bus-Master PCI Ultra-Wide (253 CDB)
     45  *	ASB-3940UW	- Bus-Master PCI Ultra-Wide (253 CDB)
     46  *	ASB-3940U2W-00	- Bus-Master PCI Ultra2-Wide (253 CDB)
     47  *	ASB-3940U3W-00	- Bus-Master PCI Ultra3-Wide (253 CDB)
     48  */
     49 
     50 #include <sys/cdefs.h>
     51 __KERNEL_RCSID(0, "$NetBSD: adw_pci.c,v 1.9 2001/11/13 07:48:40 lukem Exp $");
     52 
     53 #include <sys/types.h>
     54 #include <sys/param.h>
     55 #include <sys/systm.h>
     56 #include <sys/malloc.h>
     57 #include <sys/kernel.h>
     58 #include <sys/queue.h>
     59 #include <sys/device.h>
     60 
     61 #include <machine/bus.h>
     62 #include <machine/intr.h>
     63 
     64 #include <dev/scsipi/scsi_all.h>
     65 #include <dev/scsipi/scsipi_all.h>
     66 #include <dev/scsipi/scsiconf.h>
     67 
     68 #include <dev/pci/pcireg.h>
     69 #include <dev/pci/pcivar.h>
     70 #include <dev/pci/pcidevs.h>
     71 
     72 #include <dev/ic/adwlib.h>
     73 #include <dev/ic/adwmcode.h>
     74 #include <dev/ic/adw.h>
     75 
     76 /******************************************************************************/
     77 
     78 #define PCI_BASEADR_IO        0x10
     79 
     80 /******************************************************************************/
     81 
     82 static int adw_pci_match __P((struct device *, struct cfdata *, void *));
     83 static void adw_pci_attach __P((struct device *, struct device *, void *));
     84 
     85 struct cfattach adw_pci_ca =
     86 {
     87 	sizeof(ADW_SOFTC), adw_pci_match, adw_pci_attach
     88 };
     89 
     90 /******************************************************************************/
     91 /*
     92  * Check the slots looking for a board we recognise
     93  * If we find one, note it's address (slot) and call
     94  * the actual probe routine to check it out.
     95  */
     96 static int
     97 adw_pci_match(parent, match, aux)
     98 	struct device  *parent;
     99 	struct cfdata  *match;
    100 	void           *aux;
    101 {
    102 	struct pci_attach_args *pa = aux;
    103 
    104 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADVSYS)
    105 		switch (PCI_PRODUCT(pa->pa_id)) {
    106 		case PCI_PRODUCT_ADVSYS_WIDE:
    107 		case PCI_PRODUCT_ADVSYS_U2W:
    108 		case PCI_PRODUCT_ADVSYS_U3W:
    109 			return (1);
    110 		}
    111 
    112 	return 0;
    113 }
    114 
    115 
    116 static void
    117 adw_pci_attach(parent, self, aux)
    118 	struct device  *parent, *self;
    119 	void           *aux;
    120 {
    121 	struct pci_attach_args *pa = aux;
    122 	ADW_SOFTC      *sc = (void *) self;
    123 	bus_space_tag_t iot;
    124 	bus_space_handle_t ioh;
    125 	pci_intr_handle_t ih;
    126 	pci_chipset_tag_t pc = pa->pa_pc;
    127 	u_int32_t       command;
    128 	const char     *intrstr;
    129 
    130 
    131 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADVSYS)
    132 		switch (PCI_PRODUCT(pa->pa_id)) {
    133 		case PCI_PRODUCT_ADVSYS_WIDE:
    134 			sc->chip_type = ADW_CHIP_ASC3550;
    135 			printf(": AdvanSys ASB-3940UW-00 SCSI adapter\n");
    136 			break;
    137 
    138 		case PCI_PRODUCT_ADVSYS_U2W:
    139 			sc->chip_type = ADW_CHIP_ASC38C0800;
    140 			printf(": AdvanSys ASB-3940U2W-00 SCSI adapter\n");
    141 			break;
    142 
    143 		case PCI_PRODUCT_ADVSYS_U3W:
    144 			sc->chip_type = ADW_CHIP_ASC38C1600;
    145 			printf(": AdvanSys ASB-3940U3W-00 SCSI adapter\n");
    146 			break;
    147 
    148 		default:
    149 			printf(": unknown model!\n");
    150 			return;
    151 		}
    152 
    153 
    154 	/*
    155 	 * Make sure IO/MEM/MASTER are enabled
    156 	 */
    157 	command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    158 	command |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
    159 			PCI_COMMAND_MASTER_ENABLE;
    160 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
    161 
    162 	if ( (command & PCI_COMMAND_PARITY_ENABLE) == 0) {
    163 		sc->cfg.control_flag |= CONTROL_FLAG_IGNORE_PERR;
    164 	}
    165 	/*
    166 	 * Map Device Registers for I/O
    167 	 */
    168 	if (pci_mapreg_map(pa, PCI_BASEADR_IO, PCI_MAPREG_TYPE_IO, 0,
    169 			   &iot, &ioh, NULL, NULL)) {
    170 		printf("%s: unable to map device registers\n",
    171 		       sc->sc_dev.dv_xname);
    172 		return;
    173 	}
    174 	sc->sc_iot = iot;
    175 	sc->sc_ioh = ioh;
    176 	sc->sc_dmat = pa->pa_dmat;
    177 
    178 	/*
    179 	 * Initialize the board
    180 	 */
    181 	if (adw_init(sc)) {
    182 		printf("%s: adw_init failed", sc->sc_dev.dv_xname);
    183 		return;
    184 	}
    185 
    186 	/*
    187 	 * Map Interrupt line
    188 	 */
    189 	if (pci_intr_map(pa, &ih)) {
    190 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
    191 		return;
    192 	}
    193 	intrstr = pci_intr_string(pc, ih);
    194 
    195 	/*
    196 	 * Establish Interrupt handler
    197 	 */
    198 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, adw_intr, sc);
    199 	if (sc->sc_ih == NULL) {
    200 		printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname);
    201 		if (intrstr != NULL)
    202 			printf(" at %s", intrstr);
    203 		printf("\n");
    204 		return;
    205 	}
    206 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    207 
    208 	/*
    209 	 * Attach all the sub-devices we can find
    210 	 */
    211 	adw_attach(sc);
    212 }
    213 /******************************************************************************/
    214