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adw_pci.c revision 1.15
      1 /* $NetBSD: adw_pci.c,v 1.15 2005/02/04 02:10:45 perry 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 1.15 2005/02/04 02:10:45 perry Exp $");
     52 
     53 #include <sys/param.h>
     54 #include <sys/systm.h>
     55 #include <sys/malloc.h>
     56 #include <sys/kernel.h>
     57 #include <sys/queue.h>
     58 #include <sys/device.h>
     59 
     60 #include <machine/bus.h>
     61 #include <machine/intr.h>
     62 
     63 #include <dev/scsipi/scsi_all.h>
     64 #include <dev/scsipi/scsipi_all.h>
     65 #include <dev/scsipi/scsiconf.h>
     66 
     67 #include <dev/pci/pcireg.h>
     68 #include <dev/pci/pcivar.h>
     69 #include <dev/pci/pcidevs.h>
     70 
     71 #include <dev/ic/adwlib.h>
     72 #include <dev/ic/adwmcode.h>
     73 #include <dev/ic/adw.h>
     74 
     75 /******************************************************************************/
     76 
     77 #define PCI_BASEADR_IO        0x10
     78 
     79 /******************************************************************************/
     80 
     81 static int adw_pci_match(struct device *, struct cfdata *, void *);
     82 static void adw_pci_attach(struct device *, struct device *, void *);
     83 
     84 CFATTACH_DECL(adw_pci, sizeof(ADW_SOFTC),
     85     adw_pci_match, adw_pci_attach, NULL, NULL);
     86 
     87 /******************************************************************************/
     88 /*
     89  * Check the slots looking for a board we recognise
     90  * If we find one, note it's address (slot) and call
     91  * the actual probe routine to check it out.
     92  */
     93 static int
     94 adw_pci_match(parent, match, aux)
     95 	struct device  *parent;
     96 	struct cfdata  *match;
     97 	void           *aux;
     98 {
     99 	struct pci_attach_args *pa = aux;
    100 
    101 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADVSYS)
    102 		switch (PCI_PRODUCT(pa->pa_id)) {
    103 		case PCI_PRODUCT_ADVSYS_WIDE:
    104 		case PCI_PRODUCT_ADVSYS_U2W:
    105 		case PCI_PRODUCT_ADVSYS_U3W:
    106 			return (1);
    107 		}
    108 
    109 	return 0;
    110 }
    111 
    112 
    113 static void
    114 adw_pci_attach(parent, self, aux)
    115 	struct device  *parent, *self;
    116 	void           *aux;
    117 {
    118 	struct pci_attach_args *pa = aux;
    119 	ADW_SOFTC      *sc = (void *) self;
    120 	bus_space_tag_t iot;
    121 	bus_space_handle_t ioh;
    122 	pci_intr_handle_t ih;
    123 	pci_chipset_tag_t pc = pa->pa_pc;
    124 	u_int32_t       command;
    125 	const char     *intrstr;
    126 
    127 	aprint_naive(": SCSI controller\n");
    128 
    129 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADVSYS)
    130 		switch (PCI_PRODUCT(pa->pa_id)) {
    131 		case PCI_PRODUCT_ADVSYS_WIDE:
    132 			sc->chip_type = ADW_CHIP_ASC3550;
    133 			aprint_normal(
    134 			    ": AdvanSys ASB-3940UW-00 SCSI adapter\n");
    135 			break;
    136 
    137 		case PCI_PRODUCT_ADVSYS_U2W:
    138 			sc->chip_type = ADW_CHIP_ASC38C0800;
    139 			aprint_normal(
    140 			    ": AdvanSys ASB-3940U2W-00 SCSI adapter\n");
    141 			break;
    142 
    143 		case PCI_PRODUCT_ADVSYS_U3W:
    144 			sc->chip_type = ADW_CHIP_ASC38C1600;
    145 			aprint_normal(
    146 			    ": AdvanSys ASB-3940U3W-00 SCSI adapter\n");
    147 			break;
    148 
    149 		default:
    150 			aprint_error(": unknown model!\n");
    151 			return;
    152 		}
    153 
    154 
    155 	/*
    156 	 * Make sure IO/MEM/MASTER are enabled
    157 	 */
    158 	command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    159 	command |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
    160 			PCI_COMMAND_MASTER_ENABLE;
    161 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
    162 
    163 	if ( (command & PCI_COMMAND_PARITY_ENABLE) == 0) {
    164 		sc->cfg.control_flag |= CONTROL_FLAG_IGNORE_PERR;
    165 	}
    166 	/*
    167 	 * Map Device Registers for I/O
    168 	 */
    169 	if (pci_mapreg_map(pa, PCI_BASEADR_IO, PCI_MAPREG_TYPE_IO, 0,
    170 			   &iot, &ioh, NULL, NULL)) {
    171 		aprint_error("%s: unable to map device registers\n",
    172 		       sc->sc_dev.dv_xname);
    173 		return;
    174 	}
    175 	sc->sc_iot = iot;
    176 	sc->sc_ioh = ioh;
    177 	sc->sc_dmat = pa->pa_dmat;
    178 
    179 	/*
    180 	 * Initialize the board
    181 	 */
    182 	if (adw_init(sc)) {
    183 		aprint_error("%s: adw_init failed", sc->sc_dev.dv_xname);
    184 		return;
    185 	}
    186 
    187 	/*
    188 	 * Map Interrupt line
    189 	 */
    190 	if (pci_intr_map(pa, &ih)) {
    191 		aprint_error("%s: couldn't map interrupt\n",
    192 		    sc->sc_dev.dv_xname);
    193 		return;
    194 	}
    195 	intrstr = pci_intr_string(pc, ih);
    196 
    197 	/*
    198 	 * Establish Interrupt handler
    199 	 */
    200 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, adw_intr, sc);
    201 	if (sc->sc_ih == NULL) {
    202 		aprint_error("%s: couldn't establish interrupt",
    203 		    sc->sc_dev.dv_xname);
    204 		if (intrstr != NULL)
    205 			aprint_normal(" at %s", intrstr);
    206 		aprint_normal("\n");
    207 		return;
    208 	}
    209 	aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    210 
    211 	/*
    212 	 * Attach all the sub-devices we can find
    213 	 */
    214 	adw_attach(sc);
    215 }
    216 /******************************************************************************/
    217