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atapiconf.c revision 1.78
      1 /*	$NetBSD: atapiconf.c,v 1.78 2009/04/07 18:35:17 dyoung 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  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Manuel Bouyer.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: atapiconf.c,v 1.78 2009/04/07 18:35:17 dyoung Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/malloc.h>
     38 #include <sys/device.h>
     39 #include <sys/buf.h>
     40 #include <sys/proc.h>
     41 #include <sys/kthread.h>
     42 
     43 #include <dev/scsipi/scsipi_all.h>
     44 #include <dev/scsipi/scsipiconf.h>
     45 #include <dev/scsipi/atapiconf.h>
     46 
     47 #include "locators.h"
     48 
     49 #define SILENT_PRINTF(flags,string) if (!(flags & A_SILENT)) printf string
     50 #define MAX_TARGET 1
     51 
     52 const struct scsipi_periphsw atapi_probe_periphsw = {
     53 	NULL,
     54 	NULL,
     55 	NULL,
     56 	NULL,
     57 };
     58 
     59 static int	atapibusmatch(device_t, cfdata_t, void *);
     60 static void	atapibusattach(device_t, device_t, void *);
     61 static int	atapibusactivate(device_t, enum devact);
     62 static int	atapibusdetach(device_t, int flags);
     63 static void	atapibuschilddet(device_t, device_t);
     64 
     65 static int	atapibussubmatch(device_t, cfdata_t, const int *, void *);
     66 
     67 static int	atapi_probe_bus(struct atapibus_softc *, int);
     68 
     69 static int	atapibusprint(void *, const char *);
     70 
     71 CFATTACH_DECL3_NEW(atapibus, sizeof(struct atapibus_softc),
     72     atapibusmatch, atapibusattach, atapibusdetach, atapibusactivate, NULL,
     73     atapibuschilddet, DVF_DETACH_SHUTDOWN);
     74 
     75 extern struct cfdriver atapibus_cd;
     76 
     77 static const struct scsi_quirk_inquiry_pattern atapi_quirk_patterns[] = {
     78 	{{T_CDROM, T_REMOV,
     79 	 "ALPS ELECTRIC CO.,LTD. DC544C", "", "SW03D"},	PQUIRK_NOTUR},
     80 	{{T_CDROM, T_REMOV,
     81 	 "CR-2801TE", "", "1.07"},		PQUIRK_NOSENSE},
     82 	{{T_CDROM, T_REMOV,
     83 	 "CREATIVECD3630E", "", "AC101"},	PQUIRK_NOSENSE},
     84 	{{T_CDROM, T_REMOV,
     85 	 "FX320S", "", "q01"},			PQUIRK_NOSENSE},
     86 	{{T_CDROM, T_REMOV,
     87 	 "GCD-R580B", "", "1.00"},		PQUIRK_LITTLETOC},
     88 	{{T_CDROM, T_REMOV,
     89 	 "HITACHI CDR-7730", "", "0008a"},      PQUIRK_NOSENSE},
     90 	{{T_CDROM, T_REMOV,
     91 	 "MATSHITA CR-574", "", "1.02"},	PQUIRK_NOCAPACITY},
     92 	{{T_CDROM, T_REMOV,
     93 	 "MATSHITA CR-574", "", "1.06"},	PQUIRK_NOCAPACITY},
     94 	{{T_CDROM, T_REMOV,
     95 	 "Memorex CRW-2642", "", "1.0g"},	PQUIRK_NOSENSE},
     96 	{{T_CDROM, T_REMOV,
     97 	 "NEC                 CD-ROM DRIVE:273", "", "4.21"}, PQUIRK_NOTUR},
     98 	{{T_CDROM, T_REMOV,
     99 	 "SANYO CRD-256P", "", "1.02"},		PQUIRK_NOCAPACITY},
    100 	{{T_CDROM, T_REMOV,
    101 	 "SANYO CRD-254P", "", "1.02"},		PQUIRK_NOCAPACITY},
    102 	{{T_CDROM, T_REMOV,
    103 	 "SANYO CRD-S54P", "", "1.08"},		PQUIRK_NOCAPACITY},
    104 	{{T_CDROM, T_REMOV,
    105 	 "CD-ROM  CDR-S1", "", "1.70"},		PQUIRK_NOCAPACITY}, /* Sanyo */
    106 	{{T_CDROM, T_REMOV,
    107 	 "CD-ROM  CDR-N16", "", "1.25"},	PQUIRK_NOCAPACITY}, /* Sanyo */
    108 };
    109 
    110 int
    111 atapiprint(void *aux, const char *pnp)
    112 {
    113 	if (pnp)
    114 		aprint_normal("atapibus at %s", pnp);
    115 	return (UNCONF);
    116 }
    117 
    118 static int
    119 atapibusmatch(device_t parent, cfdata_t cf, void *aux)
    120 {
    121 	struct scsipi_channel *chan = aux;
    122 
    123 	if (chan == NULL)
    124 		return (0);
    125 
    126 	if (chan->chan_bustype->bustype_type != SCSIPI_BUSTYPE_ATAPI)
    127 		return (0);
    128 
    129 	return (1);
    130 }
    131 
    132 static int
    133 atapibussubmatch(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
    134 {
    135 	struct scsipibus_attach_args *sa = aux;
    136 	struct scsipi_periph *periph = sa->sa_periph;
    137 
    138 	if (cf->cf_loc[ATAPIBUSCF_DRIVE] != ATAPIBUSCF_DRIVE_DEFAULT &&
    139 	    cf->cf_loc[ATAPIBUSCF_DRIVE] != periph->periph_target)
    140 		return (0);
    141 	return (config_match(parent, cf, aux));
    142 }
    143 
    144 static void
    145 atapibusattach(device_t parent, device_t self, void *aux)
    146 {
    147 	struct atapibus_softc *sc = device_private(self);
    148 	struct scsipi_channel *chan = aux;
    149 
    150 	sc->sc_channel = chan;
    151 	sc->sc_dev = self;
    152 
    153 	chan->chan_name = device_xname(sc->sc_dev);
    154 
    155 	/* ATAPI has no LUNs. */
    156 	chan->chan_nluns = 1;
    157 	aprint_naive("\n");
    158 	aprint_normal(": %d targets\n", chan->chan_ntargets);
    159 
    160 	/* Initialize the channel. */
    161 	chan->chan_init_cb = NULL;
    162 	chan->chan_init_cb_arg = NULL;
    163 	scsipi_channel_init(chan);
    164 
    165 	if (!pmf_device_register(self, NULL, NULL))
    166 		aprint_error_dev(self, "couldn't establish power handler\n");
    167 
    168 	/* Probe the bus for devices. */
    169 	atapi_probe_bus(sc, -1);
    170 }
    171 
    172 static int
    173 atapibusactivate(device_t self, enum devact act)
    174 {
    175 	struct atapibus_softc *sc = device_private(self);
    176 	struct scsipi_channel *chan = sc->sc_channel;
    177 	struct scsipi_periph *periph;
    178 	int target, error = 0, s;
    179 
    180 	s = splbio();
    181 	switch (act) {
    182 	case DVACT_ACTIVATE:
    183 		error = EOPNOTSUPP;
    184 		break;
    185 
    186 	case DVACT_DEACTIVATE:
    187 		for (target = 0; target < chan->chan_ntargets; target++) {
    188 			periph = scsipi_lookup_periph(chan, target, 0);
    189 			if (periph == NULL)
    190 				continue;
    191 			error = config_deactivate(periph->periph_dev);
    192 			if (error)
    193 				goto out;
    194 		}
    195 		break;
    196 	}
    197  out:
    198 	splx(s);
    199 	return (error);
    200 }
    201 
    202 static void
    203 atapibuschilddet(device_t self, device_t child)
    204 {
    205 	struct atapibus_softc *sc = device_private(self);
    206 	struct scsipi_channel *chan = sc->sc_channel;
    207 	struct scsipi_periph *periph;
    208 	int target;
    209 
    210 	for (target = 0; target < chan->chan_ntargets; target++) {
    211 		periph = scsipi_lookup_periph(chan, target, 0);
    212 		if (periph == NULL || periph->periph_dev != child)
    213 			continue;
    214 		scsipi_remove_periph(chan, periph);
    215 		free(periph, M_DEVBUF);
    216 		break;
    217 	}
    218 }
    219 
    220 static int
    221 atapibusdetach(device_t self, int flags)
    222 {
    223 	struct atapibus_softc *sc = device_private(self);
    224 	struct scsipi_channel *chan = sc->sc_channel;
    225 	struct scsipi_periph *periph;
    226 	int target, error;
    227 
    228 	/*
    229 	 * Shut down the channel.
    230 	 */
    231 	scsipi_channel_shutdown(chan);
    232 
    233 	/*
    234 	 * Now detach all of the periphs.
    235 	 */
    236 	for (target = 0; target < chan->chan_ntargets; target++) {
    237 		periph = scsipi_lookup_periph(chan, target, 0);
    238 		if (periph == NULL)
    239 			continue;
    240 		error = config_detach(periph->periph_dev, flags);
    241 		if (error)
    242 			return (error);
    243 		KASSERT(scsipi_lookup_periph(chan, target, 0) == NULL);
    244 	}
    245 	return (0);
    246 }
    247 
    248 static int
    249 atapi_probe_bus(struct atapibus_softc *sc, int target)
    250 {
    251 	struct scsipi_channel *chan = sc->sc_channel;
    252 	int maxtarget, mintarget;
    253 	int error;
    254 	struct atapi_adapter *atapi_adapter;
    255 
    256 	if (target == -1) {
    257 		maxtarget = 1;
    258 		mintarget = 0;
    259 	} else {
    260 		if (target < 0 || target >= chan->chan_ntargets)
    261 			return (ENXIO);
    262 		maxtarget = mintarget = target;
    263 	}
    264 
    265 	if ((error = scsipi_adapter_addref(chan->chan_adapter)) != 0)
    266 		return (error);
    267 	atapi_adapter = (struct atapi_adapter*)chan->chan_adapter;
    268 	for (target = mintarget; target <= maxtarget; target++)
    269 		atapi_adapter->atapi_probe_device(sc, target);
    270 	scsipi_adapter_delref(chan->chan_adapter);
    271 	return (0);
    272 }
    273 
    274 void *
    275 atapi_probe_device(struct atapibus_softc *sc, int target,
    276     struct scsipi_periph *periph, struct scsipibus_attach_args *sa)
    277 {
    278 	struct scsipi_channel *chan = sc->sc_channel;
    279 	const struct scsi_quirk_inquiry_pattern *finger;
    280 	struct cfdata *cf;
    281 	int priority, quirks;
    282 
    283 	finger = scsipi_inqmatch(
    284 	    &sa->sa_inqbuf, (const void *)atapi_quirk_patterns,
    285 	    sizeof(atapi_quirk_patterns) /
    286 	        sizeof(atapi_quirk_patterns[0]),
    287 	    sizeof(atapi_quirk_patterns[0]), &priority);
    288 
    289 	if (finger != NULL)
    290 		quirks = finger->quirks;
    291 	else
    292 		quirks = 0;
    293 
    294 	/*
    295 	 * Now apply any quirks from the table.
    296 	 */
    297 	periph->periph_quirks |= quirks;
    298 
    299 	if ((cf = config_search_ia(atapibussubmatch, sc->sc_dev,
    300 	    "atapibus", sa)) != 0) {
    301 		scsipi_insert_periph(chan, periph);
    302 		/*
    303 		 * XXX Can't assign periph_dev here, because we'll
    304 		 * XXX need it before config_attach() returns.  Must
    305 		 * XXX assign it in periph driver.
    306 		 */
    307 		return config_attach(sc->sc_dev, cf, sa,
    308 		    atapibusprint);
    309 	} else {
    310 		atapibusprint(sa, device_xname(sc->sc_dev));
    311 		printf(" not configured\n");
    312 		free(periph, M_DEVBUF);
    313 		return NULL;
    314 	}
    315 }
    316 
    317 static int
    318 atapibusprint(void *aux, const char *pnp)
    319 {
    320 	struct scsipibus_attach_args *sa = aux;
    321 	struct scsipi_inquiry_pattern *inqbuf;
    322 	const char *dtype;
    323 
    324 	if (pnp != NULL)
    325 		aprint_normal("%s", pnp);
    326 
    327 	inqbuf = &sa->sa_inqbuf;
    328 
    329 	dtype = scsipi_dtype(inqbuf->type & SID_TYPE);
    330 	aprint_normal(" drive %d: <%s, %s, %s> %s %s",
    331 	    sa->sa_periph->periph_target, inqbuf->vendor,
    332 	    inqbuf->product, inqbuf->revision, dtype,
    333 	    inqbuf->removable ? "removable" : "fixed");
    334 	return (UNCONF);
    335 }
    336