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      1 /*	$NetBSD: adv_pci.c,v 1.31 2022/09/25 17:52:25 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc. All rights reserved.
      5  *
      6  * Author: Baldassare Dante Profeta <dante (at) mclink.it>
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     27  * POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 /*
     30  * Device probe and attach routines for the following
     31  * Advanced Systems Inc. SCSI controllers:
     32  *
     33  *    Connectivity Products:
     34  *      ABP920 - Bus-Master PCI (16 CDB)
     35  *      ABP930 - Bus-Master PCI (16 CDB)		(Footnote 1)
     36  *      ABP930U - Bus-Master PCI Ultra (16 CDB)
     37  *      ABP930UA - Bus-Master PCI Ultra (16 CDB)
     38  *      ABP960 - Bus-Master PCI MAC/PC (16 CDB)		(Footnote 2)
     39  *      ABP960U - Bus-Master PCI MAC/PC Ultra (16 CDB)	(Footnote 2)
     40  *
     41  *   Single Channel Products:
     42  *      ABP940 - Bus-Master PCI (240 CDB)
     43  *      ABP940U - Bus-Master PCI Ultra (240 CDB)
     44  *      ABP970 - Bus-Master PCI MAC/PC (240 CDB)
     45  *      ABP970U - Bus-Master PCI MAC/PC Ultra (240 CDB)
     46  *      ABP940UW - Bus-Master PCI Ultra-Wide (240 CDB)
     47  *
     48  *   Multi Channel Products:
     49  *      ABP950 - Dual Channel Bus-Master PCI (240 CDB Per Channel)
     50  *      ABP980 - Four Channel Bus-Master PCI (240 CDB Per Channel)
     51  *      ABP980U - Four Channel Bus-Master PCI Ultra (240 CDB Per Channel)
     52  *
     53  *   Footnotes:
     54  *     1. This board has been sold by SIIG as the Fast SCSI Pro PCI.
     55  *     2. This board has been sold by Iomega as a Jaz Jet PCI adapter.
     56  */
     57 
     58 #include <sys/cdefs.h>
     59 __KERNEL_RCSID(0, "$NetBSD: adv_pci.c,v 1.31 2022/09/25 17:52:25 thorpej Exp $");
     60 
     61 #include <sys/param.h>
     62 #include <sys/systm.h>
     63 #include <sys/kernel.h>
     64 #include <sys/queue.h>
     65 #include <sys/device.h>
     66 
     67 #include <sys/bus.h>
     68 #include <sys/intr.h>
     69 
     70 #include <dev/scsipi/scsi_all.h>
     71 #include <dev/scsipi/scsipi_all.h>
     72 #include <dev/scsipi/scsiconf.h>
     73 
     74 #include <dev/pci/pcireg.h>
     75 #include <dev/pci/pcivar.h>
     76 #include <dev/pci/pcidevs.h>
     77 
     78 #include <dev/ic/advlib.h>
     79 #include <dev/ic/adv.h>
     80 
     81 /******************************************************************************/
     82 
     83 #define PCI_BASEADR_IO        0x10
     84 
     85 /******************************************************************************/
     86 /*
     87  * Check the slots looking for a board we recognise
     88  * If we find one, note its address (slot) and call
     89  * the actual probe routine to check it out.
     90  */
     91 static int
     92 adv_pci_match(device_t parent, cfdata_t match, void *aux)
     93 {
     94 	struct pci_attach_args *pa = aux;
     95 
     96 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADVSYS)
     97 		switch (PCI_PRODUCT(pa->pa_id)) {
     98 		case PCI_PRODUCT_ADVSYS_1200A:
     99 		case PCI_PRODUCT_ADVSYS_1200B:
    100 		case PCI_PRODUCT_ADVSYS_ULTRA:
    101 			return (1);
    102 		}
    103 
    104 	return 0;
    105 }
    106 
    107 static void
    108 adv_pci_attach(device_t parent, device_t self, void *aux)
    109 {
    110 	struct pci_attach_args *pa = aux;
    111 	ASC_SOFTC      *sc = device_private(self);
    112 	bus_space_tag_t iot;
    113 	bus_space_handle_t ioh;
    114 	pci_intr_handle_t ih;
    115 	pci_chipset_tag_t pc = pa->pa_pc;
    116 	u_int32_t       command;
    117 	const char     *intrstr;
    118 	char intrbuf[PCI_INTRSTR_LEN];
    119 
    120 	aprint_naive(": SCSI controller\n");
    121 
    122 	sc->sc_dev = self;
    123 	sc->sc_flags = 0x0;
    124 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADVSYS)
    125 		switch (PCI_PRODUCT(pa->pa_id)) {
    126 		case PCI_PRODUCT_ADVSYS_1200A:
    127 			aprint_normal(": AdvanSys ASC1200A SCSI adapter\n");
    128 			break;
    129 
    130 		case PCI_PRODUCT_ADVSYS_1200B:
    131 			aprint_normal(": AdvanSys ASC1200B SCSI adapter\n");
    132 			break;
    133 
    134 		case PCI_PRODUCT_ADVSYS_ULTRA:
    135 			switch (PCI_REVISION(pa->pa_class)) {
    136 			case ASC_PCI_REVISION_3050:
    137 				aprint_normal(
    138 				    ": AdvanSys ABP-9xxUA SCSI adapter\n");
    139 				break;
    140 
    141 			case ASC_PCI_REVISION_3150:
    142 				aprint_normal(
    143 				    ": AdvanSys ABP-9xxU SCSI adapter\n");
    144 				break;
    145 			}
    146 			break;
    147 
    148 		default:
    149 			aprint_error(": 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 	if ((command & (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
    159 			PCI_COMMAND_MASTER_ENABLE)) !=
    160 	    (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
    161 	     PCI_COMMAND_MASTER_ENABLE)) {
    162 		pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
    163 		 command | (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
    164 			    PCI_COMMAND_MASTER_ENABLE));
    165 	}
    166 	/*
    167 	 * Latency timer settings.
    168 	 */
    169 	{
    170 		u_int32_t       bhlcr;
    171 
    172 		bhlcr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG);
    173 
    174 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADVSYS_1200A ||
    175 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADVSYS_1200B) {
    176 			bhlcr &= 0xFFFF00FFul;
    177 			pci_conf_write(pa->pa_pc, pa->pa_tag,
    178 					PCI_BHLC_REG, bhlcr);
    179 		} else if ((PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADVSYS_ULTRA)
    180 			    && (PCI_LATTIMER(bhlcr) < 0x20)) {
    181 			bhlcr &= 0xFFFF00FFul;
    182 			bhlcr |= 0x00002000ul;
    183 			pci_conf_write(pa->pa_pc, pa->pa_tag,
    184 					PCI_BHLC_REG, bhlcr);
    185 		}
    186 	}
    187 
    188 
    189 	/*
    190 	 * Map Device Registers for I/O
    191 	 */
    192 	if (pci_mapreg_map(pa, PCI_BASEADR_IO, PCI_MAPREG_TYPE_IO, 0,
    193 			&iot, &ioh, NULL, NULL)) {
    194 		aprint_error_dev(sc->sc_dev, "unable to map device registers\n");
    195 		return;
    196 	}
    197 
    198 	ASC_SET_CHIP_CONTROL(iot, ioh, ASC_CC_HALT);
    199 	ASC_SET_CHIP_STATUS(iot, ioh, 0);
    200 
    201 	sc->sc_iot = iot;
    202 	sc->sc_ioh = ioh;
    203 	sc->sc_dmat = pa->pa_dmat;
    204 	sc->pci_device_id = pa->pa_id;
    205 	sc->bus_type = ASC_IS_PCI;
    206 	sc->chip_version = ASC_GET_CHIP_VER_NO(iot, ioh);
    207 
    208 	/*
    209 	 * Initialize the board
    210 	 */
    211 	if (adv_init(sc))
    212 		panic("adv_pci_attach: adv_init failed");
    213 
    214 	/*
    215 	 * Map Interrupt line
    216 	 */
    217 	if (pci_intr_map(pa, &ih)) {
    218 		aprint_error_dev(sc->sc_dev, "couldn't map interrupt\n");
    219 		return;
    220 	}
    221 	intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf));
    222 
    223 	/*
    224 	 * Establish Interrupt handler
    225 	 */
    226 	sc->sc_ih = pci_intr_establish_xname(pc, ih, IPL_BIO, adv_intr, sc,
    227 	    device_xname(self));
    228 	if (sc->sc_ih == NULL) {
    229 		aprint_error_dev(sc->sc_dev, "couldn't establish interrupt");
    230 		if (intrstr != NULL)
    231 			aprint_error(" at %s", intrstr);
    232 		aprint_error("\n");
    233 		return;
    234 	}
    235 	aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);
    236 
    237 	/*
    238 	 * Attach all the sub-devices we can find
    239 	 */
    240 	adv_attach(sc);
    241 }
    242 
    243 CFATTACH_DECL_NEW(adv_pci, sizeof(ASC_SOFTC),
    244     adv_pci_match, adv_pci_attach, NULL, NULL);
    245