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wdc_pcmcia.c revision 1.112
      1 /*	$NetBSD: wdc_pcmcia.c,v 1.112 2008/06/05 20:34:00 uwe Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Charles M. Hannum, by Onno van der Linden and by Manuel Bouyer.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: wdc_pcmcia.c,v 1.112 2008/06/05 20:34:00 uwe Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/device.h>
     37 #include <sys/kernel.h>
     38 #include <sys/malloc.h>
     39 #include <sys/systm.h>
     40 #include <sys/proc.h>
     41 
     42 #include <sys/bus.h>
     43 #include <sys/intr.h>
     44 
     45 #include <dev/pcmcia/pcmciareg.h>
     46 #include <dev/pcmcia/pcmciavar.h>
     47 #include <dev/pcmcia/pcmciadevs.h>
     48 
     49 #include <dev/ic/wdcreg.h>
     50 #include <dev/ata/atavar.h>
     51 #include <dev/ic/wdcvar.h>
     52 
     53 #ifndef __BUS_SPACE_HAS_STREAM_METHODS
     54 #define	bus_space_write_multi_stream_2	bus_space_write_multi_2
     55 #define	bus_space_write_multi_stream_4	bus_space_write_multi_4
     56 #define	bus_space_read_multi_stream_2	bus_space_read_multi_2
     57 #define	bus_space_read_multi_stream_4	bus_space_read_multi_4
     58 #endif /* __BUS_SPACE_HAS_STREAM_METHODS */
     59 
     60 #define WDC_PCMCIA_REG_NPORTS      8
     61 #define WDC_PCMCIA_AUXREG_OFFSET   (WDC_PCMCIA_REG_NPORTS + 6)
     62 #define WDC_PCMCIA_AUXREG_NPORTS   2
     63 
     64 struct wdc_pcmcia_softc {
     65 	struct wdc_softc sc_wdcdev;
     66 	struct ata_channel *wdc_chanlist[1];
     67 	struct ata_channel ata_channel;
     68 	struct ata_queue wdc_chqueue;
     69 	struct wdc_regs wdc_regs;
     70 
     71 	struct pcmcia_function *sc_pf;
     72 	void *sc_ih;
     73 
     74 	int sc_state;
     75 #define WDC_PCMCIA_ATTACHED	3
     76 };
     77 
     78 #ifndef __BUS_SPACE_HAS_STREAM_METHODS
     79 #define bus_space_read_region_stream_2 bus_space_read_region_2
     80 #define bus_space_read_region_stream_4 bus_space_read_region_4
     81 #define bus_space_write_region_stream_2 bus_space_write_region_2
     82 #define bus_space_write_region_stream_4 bus_space_write_region_4
     83 #endif /* __BUS_SPACE_HAS_STREAM_METHODS */
     84 
     85 static int wdc_pcmcia_match(device_t, cfdata_t, void *);
     86 static int wdc_pcmcia_validate_config_io(struct pcmcia_config_entry *);
     87 static int wdc_pcmcia_validate_config_memory(struct pcmcia_config_entry *);
     88 static void wdc_pcmcia_attach(device_t, device_t, void *);
     89 static int wdc_pcmcia_detach(device_t, int);
     90 
     91 CFATTACH_DECL_NEW(wdc_pcmcia, sizeof(struct wdc_pcmcia_softc),
     92     wdc_pcmcia_match, wdc_pcmcia_attach, wdc_pcmcia_detach, wdcactivate);
     93 
     94 static const struct wdc_pcmcia_product {
     95 	struct pcmcia_product wdc_product;
     96 	int wdc_ndrive;
     97 } wdc_pcmcia_products[] = {
     98 	{ { PCMCIA_VENDOR_DIGITAL,
     99 	  PCMCIA_PRODUCT_DIGITAL_MOBILE_MEDIA_CDROM,
    100 	  {NULL, "Digital Mobile Media CD-ROM", NULL, NULL} }, 2 },
    101 
    102 	{ { PCMCIA_VENDOR_IBM,
    103 	  PCMCIA_PRODUCT_IBM_PORTABLE_CDROM,
    104 	  {NULL, "PCMCIA Portable CD-ROM Drive", NULL, NULL} }, 2 },
    105 
    106 	/* The TEAC IDE/Card II is used on the Sony Vaio */
    107 	{ { PCMCIA_VENDOR_TEAC,
    108 	  PCMCIA_PRODUCT_TEAC_IDECARDII,
    109 	  PCMCIA_CIS_TEAC_IDECARDII }, 2 },
    110 
    111 	/*
    112 	 * A fujitsu rebranded panasonic drive that reports
    113 	 * itself as function "scsi", disk interface 0
    114 	 */
    115 	{ { PCMCIA_VENDOR_PANASONIC,
    116 	  PCMCIA_PRODUCT_PANASONIC_KXLC005,
    117 	  PCMCIA_CIS_PANASONIC_KXLC005 }, 2 },
    118 
    119 	{ { PCMCIA_VENDOR_SANDISK,
    120 	  PCMCIA_PRODUCT_SANDISK_SDCFB,
    121 	  PCMCIA_CIS_SANDISK_SDCFB }, 1 },
    122 
    123 	/*
    124 	 * EXP IDE/ATAPI DVD Card use with some DVD players.
    125 	 * Does not have a vendor ID or product ID.
    126 	 */
    127 	{ { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
    128 	  PCMCIA_CIS_EXP_EXPMULTIMEDIA }, 2 },
    129 
    130 	/* Mobile Dock 2, neither vendor ID nor product ID */
    131 	{ { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
    132 	  {"SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", NULL, NULL} }, 2 },
    133 
    134 	/* Toshiba Portege 3110 CD, neither vendor ID nor product ID */
    135 	{ { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
    136 	  {"FREECOM", "PCCARD-IDE", NULL, NULL} }, 2 },
    137 
    138 	/* Random CD-ROM, (badged AMACOM), neither vendor ID nor product ID */
    139 	{ { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
    140 	  {"PCMCIA", "CD-ROM", NULL, NULL} }, 2 },
    141 
    142 	/* IO DATA CBIDE2, with neither vendor ID nor product ID */
    143 	{ { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
    144 	  PCMCIA_CIS_IODATA_CBIDE2 }, 2 },
    145 
    146 	/* TOSHIBA PA2673U(IODATA_CBIDE2 OEM), */
    147 	/*  with neither vendor ID nor product ID */
    148 	{ { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
    149 	  PCMCIA_CIS_TOSHIBA_CBIDE2 }, 2 },
    150 
    151 	/*
    152 	 * Novac PCMCIA-IDE Card for HD530P IDE Box,
    153 	 * with neither vendor ID nor product ID
    154 	 */
    155 	{ { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
    156 	  {"PCMCIA", "PnPIDE", NULL, NULL} }, 2 },
    157 
    158 	{ { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
    159 	  {"PCMCIA", "IDE CARD", NULL, NULL} }, 2 },
    160 
    161 };
    162 static const size_t wdc_pcmcia_nproducts =
    163     sizeof(wdc_pcmcia_products) / sizeof(wdc_pcmcia_products[0]);
    164 
    165 static int	wdc_pcmcia_enable(device_t, int);
    166 static void	wdc_pcmcia_datain_memory(struct ata_channel *, int, void *,
    167 					 size_t);
    168 static void	wdc_pcmcia_dataout_memory(struct ata_channel *, int, void *,
    169 					  size_t);
    170 
    171 static int
    172 wdc_pcmcia_match(device_t parent, cfdata_t match, void *aux)
    173 {
    174 	struct pcmcia_attach_args *pa = aux;
    175 
    176 	if (pa->pf->function == PCMCIA_FUNCTION_DISK &&
    177 	    pa->pf->pf_funce_disk_interface == PCMCIA_TPLFE_DDI_PCCARD_ATA)
    178 		return (1);
    179 	if (pcmcia_product_lookup(pa, wdc_pcmcia_products, wdc_pcmcia_nproducts,
    180 	    sizeof(wdc_pcmcia_products[0]), NULL))
    181 		return (2);
    182 	return (0);
    183 }
    184 
    185 static int
    186 wdc_pcmcia_validate_config_io(struct pcmcia_config_entry *cfe)
    187 {
    188 	if (cfe->iftype != PCMCIA_IFTYPE_IO ||
    189 	    cfe->num_iospace < 1 || cfe->num_iospace > 2)
    190 		return (EINVAL);
    191 	cfe->num_memspace = 0;
    192 	return (0);
    193 }
    194 
    195 static int
    196 wdc_pcmcia_validate_config_memory(struct pcmcia_config_entry *cfe)
    197 {
    198 	if (cfe->iftype != PCMCIA_IFTYPE_MEMORY ||
    199 	    cfe->num_memspace > 1 ||
    200 	    cfe->memspace[0].length < 2048)
    201 		return (EINVAL);
    202 	cfe->num_iospace = 0;
    203 	return (0);
    204 }
    205 
    206 static void
    207 wdc_pcmcia_attach(device_t parent, device_t self, void *aux)
    208 {
    209 	struct wdc_pcmcia_softc *sc = device_private(self);
    210 	struct pcmcia_attach_args *pa = aux;
    211 	struct pcmcia_config_entry *cfe;
    212 	struct wdc_regs *wdr;
    213 	const struct wdc_pcmcia_product *wdcp;
    214 	bus_size_t offset;
    215 	int i;
    216 	int error;
    217 
    218 	aprint_naive("\n");
    219 
    220 	sc->sc_wdcdev.sc_atac.atac_dev = self;
    221 	sc->sc_pf = pa->pf;
    222 
    223 	error = pcmcia_function_configure(pa->pf,
    224 	    wdc_pcmcia_validate_config_io);
    225 	if (error)
    226 		/*XXXmem16|common*/
    227 		error = pcmcia_function_configure(pa->pf,
    228 		    wdc_pcmcia_validate_config_memory);
    229 	if (error) {
    230 		aprint_error_dev(self, "configure failed, error=%d\n", error);
    231 		return;
    232 	}
    233 
    234 	cfe = pa->pf->cfe;
    235 	sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16;
    236 
    237 	sc->sc_wdcdev.regs = wdr = &sc->wdc_regs;
    238 
    239 	if (cfe->iftype == PCMCIA_IFTYPE_MEMORY) {
    240 		wdr->cmd_iot = cfe->memspace[0].handle.memt;
    241 		wdr->cmd_baseioh = cfe->memspace[0].handle.memh;
    242 		offset = cfe->memspace[0].offset;
    243 		wdr->ctl_iot = cfe->memspace[0].handle.memt;
    244 		if (bus_space_subregion(cfe->memspace[0].handle.memt,
    245 		    cfe->memspace[0].handle.memh,
    246 		    offset + WDC_PCMCIA_AUXREG_OFFSET, WDC_PCMCIA_AUXREG_NPORTS,
    247 		    &wdr->ctl_ioh))
    248 			goto fail;
    249 	} else {
    250 		wdr->cmd_iot = cfe->iospace[0].handle.iot;
    251 		wdr->cmd_baseioh = cfe->iospace[0].handle.ioh;
    252 		offset = 0;
    253 		if (cfe->num_iospace == 1) {
    254 			wdr->ctl_iot = cfe->iospace[0].handle.iot;
    255 			if (bus_space_subregion(cfe->iospace[0].handle.iot,
    256 			    cfe->iospace[0].handle.ioh,
    257 			    WDC_PCMCIA_AUXREG_OFFSET, WDC_PCMCIA_AUXREG_NPORTS,
    258 			    &wdr->ctl_ioh))
    259 				goto fail;
    260 		} else {
    261 			wdr->ctl_iot = cfe->iospace[1].handle.iot;
    262 			wdr->ctl_ioh = cfe->iospace[1].handle.ioh;
    263 		}
    264 	}
    265 
    266 	for (i = 0; i < WDC_PCMCIA_REG_NPORTS; i++) {
    267 		if (bus_space_subregion(wdr->cmd_iot,
    268 		    wdr->cmd_baseioh,
    269 		    offset + i, i == 0 ? 4 : 1,
    270 		    &wdr->cmd_iohs[i]) != 0) {
    271 			aprint_error_dev(self, "can't subregion I/O space\n");
    272 			goto fail;
    273 		}
    274 	}
    275 
    276 	if (cfe->iftype == PCMCIA_IFTYPE_MEMORY) {
    277 		aprint_normal_dev(self, "memory mapped mode\n");
    278 		wdr->data32iot = cfe->memspace[0].handle.memt;
    279 		if (bus_space_subregion(cfe->memspace[0].handle.memt,
    280 		    cfe->memspace[0].handle.memh, offset + 1024, 1024,
    281 		    &wdr->data32ioh))
    282 			goto fail;
    283 		sc->sc_wdcdev.datain_pio = wdc_pcmcia_datain_memory;
    284 		sc->sc_wdcdev.dataout_pio = wdc_pcmcia_dataout_memory;
    285 		sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_NOIRQ;
    286 	} else {
    287 		aprint_normal_dev(self, "i/o mapped mode\n");
    288 		wdr->data32iot = wdr->cmd_iot;
    289 		wdr->data32ioh = wdr->cmd_iohs[wd_data];
    290 		sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA32;
    291 	}
    292 
    293 	sc->sc_wdcdev.sc_atac.atac_pio_cap = 0;
    294 	sc->wdc_chanlist[0] = &sc->ata_channel;
    295 	sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanlist;
    296 	sc->sc_wdcdev.sc_atac.atac_nchannels = 1;
    297 	sc->ata_channel.ch_channel = 0;
    298 	sc->ata_channel.ch_atac = &sc->sc_wdcdev.sc_atac;
    299 	sc->ata_channel.ch_queue = &sc->wdc_chqueue;
    300 	wdcp = pcmcia_product_lookup(pa, wdc_pcmcia_products,
    301 	    wdc_pcmcia_nproducts, sizeof(wdc_pcmcia_products[0]), NULL);
    302 	sc->ata_channel.ch_ndrive = wdcp ? wdcp->wdc_ndrive : 2;
    303 	wdc_init_shadow_regs(&sc->ata_channel);
    304 
    305 	error = wdc_pcmcia_enable(self, 1);
    306 	if (error)
    307 		goto fail;
    308 
    309 	/* We can enable and disable the controller. */
    310 	sc->sc_wdcdev.sc_atac.atac_atapi_adapter._generic.adapt_enable =
    311 	    wdc_pcmcia_enable;
    312 	sc->sc_wdcdev.sc_atac.atac_atapi_adapter._generic.adapt_refcnt = 1;
    313 
    314 	/*
    315 	 * Some devices needs some more delay after power up to stabilize
    316 	 * and probe properly, so give them half a second.
    317 	 * See PR 25659 for details.
    318 	 */
    319 	config_pending_incr();
    320 	tsleep(wdc_pcmcia_attach, PWAIT, "wdcattach", hz / 2);
    321 
    322 	wdcattach(&sc->ata_channel);
    323 	config_pending_decr();
    324 	ata_delref(&sc->ata_channel);
    325 	sc->sc_state = WDC_PCMCIA_ATTACHED;
    326 	return;
    327 
    328 fail:
    329 	pcmcia_function_unconfigure(pa->pf);
    330 }
    331 
    332 static int
    333 wdc_pcmcia_detach(device_t self, int flags)
    334 {
    335 	struct wdc_pcmcia_softc *sc = device_private(self);
    336 	int error;
    337 
    338 	if (sc->sc_state != WDC_PCMCIA_ATTACHED)
    339 		return (0);
    340 
    341 	if ((error = wdcdetach(self, flags)) != 0)
    342 		return (error);
    343 
    344 	pcmcia_function_unconfigure(sc->sc_pf);
    345 
    346 	return (0);
    347 }
    348 
    349 static int
    350 wdc_pcmcia_enable(struct device *self, int onoff)
    351 {
    352 	struct wdc_pcmcia_softc *sc = device_private(self);
    353 	int error;
    354 
    355 	if (onoff) {
    356 		/* Establish the interrupt handler. */
    357 		sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_BIO,
    358 		    wdcintr, &sc->ata_channel);
    359 		if (!sc->sc_ih)
    360 			return (EIO);
    361 
    362 		error = pcmcia_function_enable(sc->sc_pf);
    363 		if (error) {
    364 			pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
    365 			sc->sc_ih = 0;
    366 			return (error);
    367 		}
    368 	} else {
    369 		pcmcia_function_disable(sc->sc_pf);
    370 		pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
    371 		sc->sc_ih = 0;
    372 	}
    373 
    374 	return (0);
    375 }
    376 
    377 static void
    378 wdc_pcmcia_datain_memory(struct ata_channel *chp, int flags, void *buf,
    379     size_t len)
    380 {
    381 	struct wdc_regs *wdr = CHAN_TO_WDC_REGS(chp);
    382 
    383 	while (len > 0) {
    384 		size_t n;
    385 
    386 		n = min(len, 1024);
    387 		if ((flags & DRIVE_CAP32) && (n & 3) == 0)
    388 			bus_space_read_region_stream_4(wdr->data32iot,
    389 			    wdr->data32ioh, 0, buf, n >> 2);
    390 		else
    391 			bus_space_read_region_stream_2(wdr->data32iot,
    392 			    wdr->data32ioh, 0, buf, n >> 1);
    393 		buf = (char *)buf + n;
    394 		len -= n;
    395 	}
    396 }
    397 
    398 static void
    399 wdc_pcmcia_dataout_memory(struct ata_channel *chp, int flags, void *buf,
    400     size_t len)
    401 {
    402 	struct wdc_regs *wdr = CHAN_TO_WDC_REGS(chp);
    403 
    404 	while (len > 0) {
    405 		size_t n;
    406 
    407 		n = min(len, 1024);
    408 		if ((flags & DRIVE_CAP32) && (n & 3) == 0)
    409 			bus_space_write_region_stream_4(wdr->data32iot,
    410 			    wdr->data32ioh, 0, buf, n >> 2);
    411 		else
    412 			bus_space_write_region_stream_2(wdr->data32iot,
    413 			    wdr->data32ioh, 0, buf, n >> 1);
    414 		buf = (char *)buf + n;
    415 		len -= n;
    416 	}
    417 }
    418