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      1 /* $NetBSD: adw_pci.c,v 1.30 2022/09/25 17:52:25 thorpej 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  *
     18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 /*
     31  * Device probe and attach routines for the following
     32  * Advanced Systems Inc. SCSI controllers:
     33  *
     34  *      ABP-940UW	- Bus-Master PCI Ultra-Wide (253 CDB)
     35  *	ABP-940UW (68)	- Bus-Master PCI Ultra-Wide (253 CDB)
     36  *	ABP-940UWD	- Bus-Master PCI Ultra-Wide (253 CDB)
     37  *	ABP-970UW	- Bus-Master PCI Ultra-Wide (253 CDB)
     38  *	ASB-3940UW	- Bus-Master PCI Ultra-Wide (253 CDB)
     39  *	ASB-3940U2W-00	- Bus-Master PCI Ultra2-Wide (253 CDB)
     40  *	ASB-3940U3W-00	- Bus-Master PCI Ultra3-Wide (253 CDB)
     41  */
     42 
     43 #include <sys/cdefs.h>
     44 __KERNEL_RCSID(0, "$NetBSD: adw_pci.c,v 1.30 2022/09/25 17:52:25 thorpej Exp $");
     45 
     46 #include <sys/param.h>
     47 #include <sys/systm.h>
     48 #include <sys/kernel.h>
     49 #include <sys/queue.h>
     50 #include <sys/device.h>
     51 
     52 #include <sys/bus.h>
     53 #include <sys/intr.h>
     54 
     55 #include <dev/scsipi/scsi_all.h>
     56 #include <dev/scsipi/scsipi_all.h>
     57 #include <dev/scsipi/scsiconf.h>
     58 
     59 #include <dev/pci/pcireg.h>
     60 #include <dev/pci/pcivar.h>
     61 #include <dev/pci/pcidevs.h>
     62 
     63 #include <dev/ic/adwlib.h>
     64 #include <dev/ic/adwmcode.h>
     65 #include <dev/ic/adw.h>
     66 
     67 /******************************************************************************/
     68 
     69 #define PCI_BASEADR_IO        0x10
     70 
     71 /******************************************************************************/
     72 /*
     73  * Check the slots looking for a board we recognise
     74  * If we find one, note its address (slot) and call
     75  * the actual probe routine to check it out.
     76  */
     77 static int
     78 adw_pci_match(device_t parent, cfdata_t match, void *aux)
     79 {
     80 	struct pci_attach_args *pa = aux;
     81 
     82 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADVSYS)
     83 		switch (PCI_PRODUCT(pa->pa_id)) {
     84 		case PCI_PRODUCT_ADVSYS_WIDE:
     85 		case PCI_PRODUCT_ADVSYS_U2W:
     86 		case PCI_PRODUCT_ADVSYS_U3W:
     87 			return (1);
     88 		}
     89 
     90 	return 0;
     91 }
     92 
     93 
     94 static void
     95 adw_pci_attach(device_t parent, device_t self, void *aux)
     96 {
     97 	struct pci_attach_args *pa = aux;
     98 	ADW_SOFTC      *sc = device_private(self);
     99 	bus_space_tag_t iot;
    100 	bus_space_handle_t ioh;
    101 	pci_intr_handle_t ih;
    102 	pci_chipset_tag_t pc = pa->pa_pc;
    103 	u_int32_t       command;
    104 	const char     *intrstr;
    105 	char intrbuf[PCI_INTRSTR_LEN];
    106 
    107 	sc->sc_dev = self;
    108 
    109 	aprint_naive(": SCSI controller\n");
    110 
    111 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADVSYS)
    112 		switch (PCI_PRODUCT(pa->pa_id)) {
    113 		case PCI_PRODUCT_ADVSYS_WIDE:
    114 			sc->chip_type = ADW_CHIP_ASC3550;
    115 			aprint_normal(
    116 			    ": AdvanSys ASB-3940UW-00 SCSI adapter\n");
    117 			break;
    118 
    119 		case PCI_PRODUCT_ADVSYS_U2W:
    120 			sc->chip_type = ADW_CHIP_ASC38C0800;
    121 			aprint_normal(
    122 			    ": AdvanSys ASB-3940U2W-00 SCSI adapter\n");
    123 			break;
    124 
    125 		case PCI_PRODUCT_ADVSYS_U3W:
    126 			sc->chip_type = ADW_CHIP_ASC38C1600;
    127 			aprint_normal(
    128 			    ": AdvanSys ASB-3940U3W-00 SCSI adapter\n");
    129 			break;
    130 
    131 		default:
    132 			aprint_error(": unknown model!\n");
    133 			return;
    134 		}
    135 
    136 
    137 	/*
    138 	 * Make sure IO/MEM/MASTER are enabled
    139 	 */
    140 	command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    141 	command |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
    142 			PCI_COMMAND_MASTER_ENABLE;
    143 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
    144 
    145 	if ( (command & PCI_COMMAND_PARITY_ENABLE) == 0) {
    146 		sc->cfg.control_flag |= CONTROL_FLAG_IGNORE_PERR;
    147 	}
    148 	/*
    149 	 * Map Device Registers for I/O
    150 	 */
    151 	if (pci_mapreg_map(pa, PCI_BASEADR_IO, PCI_MAPREG_TYPE_IO, 0,
    152 			   &iot, &ioh, NULL, NULL)) {
    153 		aprint_error_dev(self, "unable to map device registers\n");
    154 		return;
    155 	}
    156 	sc->sc_iot = iot;
    157 	sc->sc_ioh = ioh;
    158 	sc->sc_dmat = pa->pa_dmat;
    159 
    160 	/*
    161 	 * Initialize the board
    162 	 */
    163 	if (adw_init(sc)) {
    164 		aprint_error_dev(self, "adw_init failed");
    165 		return;
    166 	}
    167 
    168 	/*
    169 	 * Map Interrupt line
    170 	 */
    171 	if (pci_intr_map(pa, &ih)) {
    172 		aprint_error_dev(self, "couldn't map interrupt\n");
    173 		return;
    174 	}
    175 	intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf));
    176 
    177 	/*
    178 	 * Establish Interrupt handler
    179 	 */
    180 	sc->sc_ih = pci_intr_establish_xname(pc, ih, IPL_BIO, adw_intr, sc,
    181 	    device_xname(self));
    182 	if (sc->sc_ih == NULL) {
    183 		aprint_error_dev(self, "couldn't establish interrupt");
    184 		if (intrstr != NULL)
    185 			aprint_error(" at %s", intrstr);
    186 		aprint_error("\n");
    187 		return;
    188 	}
    189 	aprint_normal_dev(self, "interrupting at %s\n", intrstr);
    190 
    191 	/*
    192 	 * Attach all the sub-devices we can find
    193 	 */
    194 	adw_attach(sc);
    195 }
    196 
    197 CFATTACH_DECL_NEW(adw_pci, sizeof(ADW_SOFTC),
    198     adw_pci_match, adw_pci_attach, NULL, NULL);
    199