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atapiconf.c revision 1.88
      1 /*	$NetBSD: atapiconf.c,v 1.88 2016/03/13 09:01:04 tsutsui Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1996, 2001 Manuel Bouyer.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include <sys/cdefs.h>
     28 __KERNEL_RCSID(0, "$NetBSD: atapiconf.c,v 1.88 2016/03/13 09:01:04 tsutsui Exp $");
     29 
     30 #include <sys/param.h>
     31 #include <sys/systm.h>
     32 #include <sys/malloc.h>
     33 #include <sys/device.h>
     34 #include <sys/buf.h>
     35 #include <sys/proc.h>
     36 #include <sys/kthread.h>
     37 
     38 #include <dev/scsipi/scsipi_all.h>
     39 #include <dev/scsipi/scsipiconf.h>
     40 #include <dev/scsipi/atapiconf.h>
     41 
     42 #include "locators.h"
     43 
     44 #define SILENT_PRINTF(flags,string) if (!(flags & A_SILENT)) printf string
     45 #define MAX_TARGET 1
     46 
     47 const struct scsipi_periphsw atapi_probe_periphsw = {
     48 	NULL,
     49 	NULL,
     50 	NULL,
     51 	NULL,
     52 };
     53 
     54 static int	atapibusmatch(device_t, cfdata_t, void *);
     55 static void	atapibusattach(device_t, device_t, void *);
     56 static int	atapibusdetach(device_t, int flags);
     57 static void	atapibuschilddet(device_t, device_t);
     58 
     59 static int	atapibussubmatch(device_t, cfdata_t, const int *, void *);
     60 
     61 static int	atapi_probe_bus(struct atapibus_softc *, int);
     62 
     63 static int	atapibusprint(void *, const char *);
     64 
     65 CFATTACH_DECL3_NEW(atapibus, sizeof(struct atapibus_softc),
     66     atapibusmatch, atapibusattach, atapibusdetach, NULL, NULL,
     67     atapibuschilddet, DVF_DETACH_SHUTDOWN);
     68 
     69 extern struct cfdriver atapibus_cd;
     70 
     71 static const struct scsi_quirk_inquiry_pattern atapi_quirk_patterns[] = {
     72 	{{T_CDROM, T_REMOV,
     73 	 "ALPS ELECTRIC CO.,LTD. DC544C", "", "SW03D"},	PQUIRK_NOTUR},
     74 	{{T_CDROM, T_REMOV,
     75 	 "CR-2801TE", "", "1.07"},		PQUIRK_NOSENSE},
     76 	{{T_CDROM, T_REMOV,
     77 	 "CREATIVECD3630E", "", "AC101"},	PQUIRK_NOSENSE},
     78 	{{T_CDROM, T_REMOV,
     79 	 "FX320S", "", "q01"},			PQUIRK_NOSENSE},
     80 	{{T_CDROM, T_REMOV,
     81 	 "GCD-R580B", "", "1.00"},		PQUIRK_LITTLETOC},
     82 	{{T_CDROM, T_REMOV,
     83 	 "HITACHI CDR-7730", "", "0008a"},      PQUIRK_NOSENSE},
     84 	{{T_CDROM, T_REMOV,
     85 	 "MATSHITA CR-574", "", "1.02"},	PQUIRK_NOCAPACITY},
     86 	{{T_CDROM, T_REMOV,
     87 	 "MATSHITA CR-574", "", "1.06"},	PQUIRK_NOCAPACITY},
     88 	{{T_CDROM, T_REMOV,
     89 	 "Memorex CRW-2642", "", "1.0g"},	PQUIRK_NOSENSE},
     90 	{{T_CDROM, T_REMOV,
     91 	 "NEC                 CD-ROM DRIVE:273", "", "4.21"}, PQUIRK_NOTUR},
     92 	{{T_CDROM, T_REMOV,
     93 	 "SANYO CRD-256P", "", "1.02"},		PQUIRK_NOCAPACITY},
     94 	{{T_CDROM, T_REMOV,
     95 	 "SANYO CRD-254P", "", "1.02"},		PQUIRK_NOCAPACITY},
     96 	{{T_CDROM, T_REMOV,
     97 	 "SANYO CRD-S54P", "", "1.08"},		PQUIRK_NOCAPACITY},
     98 	{{T_CDROM, T_REMOV,
     99 	 "CD-ROM  CDR-S1", "", "1.70"},		PQUIRK_NOCAPACITY}, /* Sanyo */
    100 	{{T_CDROM, T_REMOV,
    101 	 "CD-ROM  CDR-N16", "", "1.25"},	PQUIRK_NOCAPACITY}, /* Sanyo */
    102 };
    103 
    104 int
    105 atapiprint(void *aux, const char *pnp)
    106 {
    107 	if (pnp)
    108 		aprint_normal("atapibus at %s", pnp);
    109 	return (UNCONF);
    110 }
    111 
    112 static int
    113 atapibusmatch(device_t parent, cfdata_t cf, void *aux)
    114 {
    115 	struct scsipi_channel *chan = aux;
    116 
    117 	if (chan == NULL)
    118 		return (0);
    119 
    120 	if (SCSIPI_BUSTYPE_TYPE(chan->chan_bustype->bustype_type) !=
    121 	    SCSIPI_BUSTYPE_ATAPI)
    122 		return (0);
    123 
    124 	return (1);
    125 }
    126 
    127 static int
    128 atapibussubmatch(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
    129 {
    130 	struct scsipibus_attach_args *sa = aux;
    131 	struct scsipi_periph *periph = sa->sa_periph;
    132 
    133 	if (cf->cf_loc[ATAPIBUSCF_DRIVE] != ATAPIBUSCF_DRIVE_DEFAULT &&
    134 	    cf->cf_loc[ATAPIBUSCF_DRIVE] != periph->periph_target)
    135 		return (0);
    136 	return (config_match(parent, cf, aux));
    137 }
    138 
    139 static void
    140 atapibusattach(device_t parent, device_t self, void *aux)
    141 {
    142 	struct atapibus_softc *sc = device_private(self);
    143 	struct scsipi_channel *chan = aux;
    144 
    145 	sc->sc_channel = chan;
    146 	sc->sc_dev = self;
    147 
    148 	chan->chan_name = device_xname(sc->sc_dev);
    149 
    150 	/* ATAPI has no LUNs. */
    151 	chan->chan_nluns = 1;
    152 	aprint_naive("\n");
    153 	aprint_normal(": %d targets\n", chan->chan_ntargets);
    154 
    155 	/* Initialize the channel. */
    156 	chan->chan_init_cb = NULL;
    157 	chan->chan_init_cb_arg = NULL;
    158 	scsipi_channel_init(chan);
    159 
    160 	if (!pmf_device_register(self, NULL, NULL))
    161 		aprint_error_dev(self, "couldn't establish power handler\n");
    162 
    163 	/* Probe the bus for devices. */
    164 	atapi_probe_bus(sc, -1);
    165 }
    166 
    167 static void
    168 atapibuschilddet(device_t self, device_t child)
    169 {
    170 	struct atapibus_softc *sc = device_private(self);
    171 	struct scsipi_channel *chan = sc->sc_channel;
    172 	struct scsipi_periph *periph;
    173 	int target;
    174 
    175 	/* XXXSMP scsipi */
    176 	KERNEL_LOCK(1, curlwp);
    177 
    178 	for (target = 0; target < chan->chan_ntargets; target++) {
    179 		periph = scsipi_lookup_periph(chan, target, 0);
    180 		if (periph == NULL || periph->periph_dev != child)
    181 			continue;
    182 		scsipi_remove_periph(chan, periph);
    183 		free(periph, M_DEVBUF);
    184 		break;
    185 	}
    186 
    187 	/* XXXSMP scsipi */
    188 	KERNEL_UNLOCK_ONE(curlwp);
    189 }
    190 
    191 static int
    192 atapibusdetach(device_t self, int flags)
    193 {
    194 	struct atapibus_softc *sc = device_private(self);
    195 	struct scsipi_channel *chan = sc->sc_channel;
    196 	struct scsipi_periph *periph;
    197 	int target, error = 0;
    198 
    199 	/*
    200 	 * Shut down the channel.
    201 	 */
    202 	scsipi_channel_shutdown(chan);
    203 
    204 	/* XXXSMP scsipi */
    205 	KERNEL_LOCK(1, curlwp);
    206 
    207 	/*
    208 	 * Now detach all of the periphs.
    209 	 */
    210 	for (target = 0; target < chan->chan_ntargets; target++) {
    211 		periph = scsipi_lookup_periph(chan, target, 0);
    212 		if (periph == NULL)
    213 			continue;
    214 		error = config_detach(periph->periph_dev, flags);
    215 		if (error)
    216 			goto out;
    217 		KASSERT(scsipi_lookup_periph(chan, target, 0) == NULL);
    218 	}
    219 
    220 out:
    221 	/* XXXSMP scsipi */
    222 	KERNEL_UNLOCK_ONE(curlwp);
    223 	return error;
    224 }
    225 
    226 static int
    227 atapi_probe_bus(struct atapibus_softc *sc, int target)
    228 {
    229 	struct scsipi_channel *chan = sc->sc_channel;
    230 	int maxtarget, mintarget;
    231 	int error;
    232 	struct atapi_adapter *atapi_adapter;
    233 
    234 	KASSERT(chan->chan_ntargets >= 1);
    235 
    236 	if (target == -1) {
    237 		maxtarget = chan->chan_ntargets - 1;
    238 		mintarget = 0;
    239 	} else {
    240 		if (target < 0 || target >= chan->chan_ntargets)
    241 			return (ENXIO);
    242 		maxtarget = mintarget = target;
    243 	}
    244 
    245 	if ((error = scsipi_adapter_addref(chan->chan_adapter)) != 0)
    246 		return (error);
    247 	atapi_adapter = (struct atapi_adapter*)chan->chan_adapter;
    248 	for (target = mintarget; target <= maxtarget; target++)
    249 		atapi_adapter->atapi_probe_device(sc, target);
    250 	scsipi_adapter_delref(chan->chan_adapter);
    251 	return (0);
    252 }
    253 
    254 void *
    255 atapi_probe_device(struct atapibus_softc *sc, int target,
    256     struct scsipi_periph *periph, struct scsipibus_attach_args *sa)
    257 {
    258 	struct scsipi_channel *chan = sc->sc_channel;
    259 	const struct scsi_quirk_inquiry_pattern *finger;
    260 	cfdata_t cf;
    261 	int priority, quirks;
    262 
    263 	finger = scsipi_inqmatch(
    264 	    &sa->sa_inqbuf, (const void *)atapi_quirk_patterns,
    265 	    sizeof(atapi_quirk_patterns) /
    266 	        sizeof(atapi_quirk_patterns[0]),
    267 	    sizeof(atapi_quirk_patterns[0]), &priority);
    268 
    269 	if (finger != NULL)
    270 		quirks = finger->quirks;
    271 	else
    272 		quirks = 0;
    273 
    274 	/*
    275 	 * Now apply any quirks from the table.
    276 	 */
    277 	periph->periph_quirks |= quirks;
    278 
    279 	if ((cf = config_search_ia(atapibussubmatch, sc->sc_dev,
    280 	    "atapibus", sa)) != 0) {
    281 		scsipi_insert_periph(chan, periph);
    282 		/*
    283 		 * XXX Can't assign periph_dev here, because we'll
    284 		 * XXX need it before config_attach() returns.  Must
    285 		 * XXX assign it in periph driver.
    286 		 */
    287 		return config_attach(sc->sc_dev, cf, sa,
    288 		    atapibusprint);
    289 	} else {
    290 		atapibusprint(sa, device_xname(sc->sc_dev));
    291 		aprint_normal(" not configured\n");
    292 		free(periph, M_DEVBUF);
    293 		return NULL;
    294 	}
    295 }
    296 
    297 static int
    298 atapibusprint(void *aux, const char *pnp)
    299 {
    300 	struct scsipibus_attach_args *sa = aux;
    301 	struct scsipi_inquiry_pattern *inqbuf;
    302 	const char *dtype;
    303 
    304 	if (pnp != NULL)
    305 		aprint_normal("%s", pnp);
    306 
    307 	inqbuf = &sa->sa_inqbuf;
    308 
    309 	dtype = scsipi_dtype(inqbuf->type & SID_TYPE);
    310 	aprint_normal(" drive %d: <%s, %s, %s> %s %s",
    311 	    sa->sa_periph->periph_target, inqbuf->vendor,
    312 	    inqbuf->product, inqbuf->revision, dtype,
    313 	    inqbuf->removable ? "removable" : "fixed");
    314 	return (UNCONF);
    315 }
    316