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atapiconf.c revision 1.80
      1 /*	$NetBSD: atapiconf.c,v 1.80 2009/10/19 18:41:16 bouyer 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 1.80 2009/10/19 18:41:16 bouyer 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	atapibusactivate(device_t, enum devact);
     57 static int	atapibusdetach(device_t, int flags);
     58 static void	atapibuschilddet(device_t, device_t);
     59 
     60 static int	atapibussubmatch(device_t, cfdata_t, const int *, void *);
     61 
     62 static int	atapi_probe_bus(struct atapibus_softc *, int);
     63 
     64 static int	atapibusprint(void *, const char *);
     65 
     66 CFATTACH_DECL3_NEW(atapibus, sizeof(struct atapibus_softc),
     67     atapibusmatch, atapibusattach, atapibusdetach, atapibusactivate, NULL,
     68     atapibuschilddet, DVF_DETACH_SHUTDOWN);
     69 
     70 extern struct cfdriver atapibus_cd;
     71 
     72 static const struct scsi_quirk_inquiry_pattern atapi_quirk_patterns[] = {
     73 	{{T_CDROM, T_REMOV,
     74 	 "ALPS ELECTRIC CO.,LTD. DC544C", "", "SW03D"},	PQUIRK_NOTUR},
     75 	{{T_CDROM, T_REMOV,
     76 	 "CR-2801TE", "", "1.07"},		PQUIRK_NOSENSE},
     77 	{{T_CDROM, T_REMOV,
     78 	 "CREATIVECD3630E", "", "AC101"},	PQUIRK_NOSENSE},
     79 	{{T_CDROM, T_REMOV,
     80 	 "FX320S", "", "q01"},			PQUIRK_NOSENSE},
     81 	{{T_CDROM, T_REMOV,
     82 	 "GCD-R580B", "", "1.00"},		PQUIRK_LITTLETOC},
     83 	{{T_CDROM, T_REMOV,
     84 	 "HITACHI CDR-7730", "", "0008a"},      PQUIRK_NOSENSE},
     85 	{{T_CDROM, T_REMOV,
     86 	 "MATSHITA CR-574", "", "1.02"},	PQUIRK_NOCAPACITY},
     87 	{{T_CDROM, T_REMOV,
     88 	 "MATSHITA CR-574", "", "1.06"},	PQUIRK_NOCAPACITY},
     89 	{{T_CDROM, T_REMOV,
     90 	 "Memorex CRW-2642", "", "1.0g"},	PQUIRK_NOSENSE},
     91 	{{T_CDROM, T_REMOV,
     92 	 "NEC                 CD-ROM DRIVE:273", "", "4.21"}, PQUIRK_NOTUR},
     93 	{{T_CDROM, T_REMOV,
     94 	 "SANYO CRD-256P", "", "1.02"},		PQUIRK_NOCAPACITY},
     95 	{{T_CDROM, T_REMOV,
     96 	 "SANYO CRD-254P", "", "1.02"},		PQUIRK_NOCAPACITY},
     97 	{{T_CDROM, T_REMOV,
     98 	 "SANYO CRD-S54P", "", "1.08"},		PQUIRK_NOCAPACITY},
     99 	{{T_CDROM, T_REMOV,
    100 	 "CD-ROM  CDR-S1", "", "1.70"},		PQUIRK_NOCAPACITY}, /* Sanyo */
    101 	{{T_CDROM, T_REMOV,
    102 	 "CD-ROM  CDR-N16", "", "1.25"},	PQUIRK_NOCAPACITY}, /* Sanyo */
    103 };
    104 
    105 int
    106 atapiprint(void *aux, const char *pnp)
    107 {
    108 	if (pnp)
    109 		aprint_normal("atapibus at %s", pnp);
    110 	return (UNCONF);
    111 }
    112 
    113 static int
    114 atapibusmatch(device_t parent, cfdata_t cf, void *aux)
    115 {
    116 	struct scsipi_channel *chan = aux;
    117 
    118 	if (chan == NULL)
    119 		return (0);
    120 
    121 	if (chan->chan_bustype->bustype_type != 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 int
    168 atapibusactivate(device_t self, enum devact act)
    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, error = 0, s;
    174 
    175 	s = splbio();
    176 	switch (act) {
    177 	case DVACT_ACTIVATE:
    178 		error = EOPNOTSUPP;
    179 		break;
    180 
    181 	case DVACT_DEACTIVATE:
    182 		for (target = 0; target < chan->chan_ntargets; target++) {
    183 			periph = scsipi_lookup_periph(chan, target, 0);
    184 			if (periph == NULL)
    185 				continue;
    186 			error = config_deactivate(periph->periph_dev);
    187 			if (error)
    188 				goto out;
    189 		}
    190 		break;
    191 	}
    192  out:
    193 	splx(s);
    194 	return (error);
    195 }
    196 
    197 static void
    198 atapibuschilddet(device_t self, device_t child)
    199 {
    200 	struct atapibus_softc *sc = device_private(self);
    201 	struct scsipi_channel *chan = sc->sc_channel;
    202 	struct scsipi_periph *periph;
    203 	int target;
    204 
    205 	for (target = 0; target < chan->chan_ntargets; target++) {
    206 		periph = scsipi_lookup_periph(chan, target, 0);
    207 		if (periph == NULL || periph->periph_dev != child)
    208 			continue;
    209 		scsipi_remove_periph(chan, periph);
    210 		free(periph, M_DEVBUF);
    211 		break;
    212 	}
    213 }
    214 
    215 static int
    216 atapibusdetach(device_t self, int flags)
    217 {
    218 	struct atapibus_softc *sc = device_private(self);
    219 	struct scsipi_channel *chan = sc->sc_channel;
    220 	struct scsipi_periph *periph;
    221 	int target, error;
    222 
    223 	/*
    224 	 * Shut down the channel.
    225 	 */
    226 	scsipi_channel_shutdown(chan);
    227 
    228 	/*
    229 	 * Now detach all of the periphs.
    230 	 */
    231 	for (target = 0; target < chan->chan_ntargets; target++) {
    232 		periph = scsipi_lookup_periph(chan, target, 0);
    233 		if (periph == NULL)
    234 			continue;
    235 		error = config_detach(periph->periph_dev, flags);
    236 		if (error)
    237 			return (error);
    238 		KASSERT(scsipi_lookup_periph(chan, target, 0) == NULL);
    239 	}
    240 	return (0);
    241 }
    242 
    243 static int
    244 atapi_probe_bus(struct atapibus_softc *sc, int target)
    245 {
    246 	struct scsipi_channel *chan = sc->sc_channel;
    247 	int maxtarget, mintarget;
    248 	int error;
    249 	struct atapi_adapter *atapi_adapter;
    250 
    251 	if (target == -1) {
    252 		maxtarget = 1;
    253 		mintarget = 0;
    254 	} else {
    255 		if (target < 0 || target >= chan->chan_ntargets)
    256 			return (ENXIO);
    257 		maxtarget = mintarget = target;
    258 	}
    259 
    260 	if ((error = scsipi_adapter_addref(chan->chan_adapter)) != 0)
    261 		return (error);
    262 	atapi_adapter = (struct atapi_adapter*)chan->chan_adapter;
    263 	for (target = mintarget; target <= maxtarget; target++)
    264 		atapi_adapter->atapi_probe_device(sc, target);
    265 	scsipi_adapter_delref(chan->chan_adapter);
    266 	return (0);
    267 }
    268 
    269 void *
    270 atapi_probe_device(struct atapibus_softc *sc, int target,
    271     struct scsipi_periph *periph, struct scsipibus_attach_args *sa)
    272 {
    273 	struct scsipi_channel *chan = sc->sc_channel;
    274 	const struct scsi_quirk_inquiry_pattern *finger;
    275 	cfdata_t cf;
    276 	int priority, quirks;
    277 
    278 	finger = scsipi_inqmatch(
    279 	    &sa->sa_inqbuf, (const void *)atapi_quirk_patterns,
    280 	    sizeof(atapi_quirk_patterns) /
    281 	        sizeof(atapi_quirk_patterns[0]),
    282 	    sizeof(atapi_quirk_patterns[0]), &priority);
    283 
    284 	if (finger != NULL)
    285 		quirks = finger->quirks;
    286 	else
    287 		quirks = 0;
    288 
    289 	/*
    290 	 * Now apply any quirks from the table.
    291 	 */
    292 	periph->periph_quirks |= quirks;
    293 
    294 	if ((cf = config_search_ia(atapibussubmatch, sc->sc_dev,
    295 	    "atapibus", sa)) != 0) {
    296 		scsipi_insert_periph(chan, periph);
    297 		/*
    298 		 * XXX Can't assign periph_dev here, because we'll
    299 		 * XXX need it before config_attach() returns.  Must
    300 		 * XXX assign it in periph driver.
    301 		 */
    302 		return config_attach(sc->sc_dev, cf, sa,
    303 		    atapibusprint);
    304 	} else {
    305 		atapibusprint(sa, device_xname(sc->sc_dev));
    306 		printf(" not configured\n");
    307 		free(periph, M_DEVBUF);
    308 		return NULL;
    309 	}
    310 }
    311 
    312 static int
    313 atapibusprint(void *aux, const char *pnp)
    314 {
    315 	struct scsipibus_attach_args *sa = aux;
    316 	struct scsipi_inquiry_pattern *inqbuf;
    317 	const char *dtype;
    318 
    319 	if (pnp != NULL)
    320 		aprint_normal("%s", pnp);
    321 
    322 	inqbuf = &sa->sa_inqbuf;
    323 
    324 	dtype = scsipi_dtype(inqbuf->type & SID_TYPE);
    325 	aprint_normal(" drive %d: <%s, %s, %s> %s %s",
    326 	    sa->sa_periph->periph_target, inqbuf->vendor,
    327 	    inqbuf->product, inqbuf->revision, dtype,
    328 	    inqbuf->removable ? "removable" : "fixed");
    329 	return (UNCONF);
    330 }
    331