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acardide.c revision 1.21.36.1 
      1 /*	$NetBSD: acardide.c,v 1.21.36.1 2008/03/24 07:15:46 keiichi Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2001 Izumi Tsutsui.
      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. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: acardide.c,v 1.21.36.1 2008/03/24 07:15:46 keiichi Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 
     35 #include <dev/pci/pcivar.h>
     36 #include <dev/pci/pcidevs.h>
     37 #include <dev/pci/pciidereg.h>
     38 #include <dev/pci/pciidevar.h>
     39 #include <dev/pci/pciide_acard_reg.h>
     40 
     41 static void acard_chip_map(struct pciide_softc*, struct pci_attach_args*);
     42 static void acard_setup_channel(struct ata_channel*);
     43 #if 0 /* XXX !! */
     44 static int  acard_pci_intr(void *);
     45 #endif
     46 
     47 static int  acardide_match(device_t, cfdata_t, void *);
     48 static void acardide_attach(device_t, device_t, void *);
     49 
     50 CFATTACH_DECL_NEW(acardide, sizeof(struct pciide_softc),
     51     acardide_match, acardide_attach, NULL, NULL);
     52 
     53 static const struct pciide_product_desc pciide_acard_products[] =  {
     54 	{ PCI_PRODUCT_ACARD_ATP850U,
     55 	  0,
     56 	  "Acard ATP850U Ultra33 IDE Controller",
     57 	  acard_chip_map,
     58 	},
     59 	{ PCI_PRODUCT_ACARD_ATP860,
     60 	  0,
     61 	  "Acard ATP860 Ultra66 IDE Controller",
     62 	  acard_chip_map,
     63 	},
     64 	{ PCI_PRODUCT_ACARD_ATP860A,
     65 	  0,
     66 	  "Acard ATP860-A Ultra66 IDE Controller",
     67 	  acard_chip_map,
     68 	},
     69 	{ PCI_PRODUCT_ACARD_ATP865,
     70 	  0,
     71 	  "Acard ATP865 Ultra133 IDE Controller",
     72 	  acard_chip_map,
     73 	},
     74 	{ PCI_PRODUCT_ACARD_ATP865A,
     75 	  0,
     76 	  "Acard ATP865-A Ultra133 IDE Controller",
     77 	  acard_chip_map,
     78 	},
     79 	{ 0,
     80 	  0,
     81 	  NULL,
     82 	  NULL
     83 	}
     84 };
     85 
     86 static int
     87 acardide_match(device_t parent, cfdata_t match, void *aux)
     88 {
     89 	struct pci_attach_args *pa = aux;
     90 
     91 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ACARD) {
     92 		if (pciide_lookup_product(pa->pa_id, pciide_acard_products))
     93 			return (2);
     94 	}
     95 	return (0);
     96 }
     97 
     98 static void
     99 acardide_attach(device_t parent, device_t self, void *aux)
    100 {
    101 	struct pci_attach_args *pa = aux;
    102 	struct pciide_softc *sc = device_private(self);
    103 
    104 	sc->sc_wdcdev.sc_atac.atac_dev = self;
    105 
    106 	pciide_common_attach(sc, pa,
    107 	    pciide_lookup_product(pa->pa_id, pciide_acard_products));
    108 
    109 }
    110 
    111 #define	ACARD_IS_850(sc)						\
    112 	((sc)->sc_pp->ide_product == PCI_PRODUCT_ACARD_ATP850U)
    113 
    114 static void
    115 acard_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
    116 {
    117 	struct pciide_channel *cp;
    118 	int i;
    119 	pcireg_t interface;
    120 	bus_size_t cmdsize, ctlsize;
    121 
    122 	if (pciide_chipen(sc, pa) == 0)
    123 		return;
    124 
    125 	/*
    126 	 * when the chip is in native mode it identifies itself as a
    127 	 * 'misc mass storage'. Fake interface in this case.
    128 	 */
    129 	if (PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_IDE) {
    130 		interface = PCI_INTERFACE(pa->pa_class);
    131 	} else {
    132 		interface = PCIIDE_INTERFACE_BUS_MASTER_DMA |
    133 		    PCIIDE_INTERFACE_PCI(0) | PCIIDE_INTERFACE_PCI(1);
    134 	}
    135 
    136 	aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev,
    137 	    "bus-master DMA support present");
    138 	pciide_mapreg_dma(sc, pa);
    139 	aprint_verbose("\n");
    140 	sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_DATA32;
    141 
    142 	if (sc->sc_dma_ok) {
    143 		sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA | ATAC_CAP_UDMA;
    144 		sc->sc_wdcdev.irqack = pciide_irqack;
    145 	}
    146 	sc->sc_wdcdev.sc_atac.atac_pio_cap = 4;
    147 	sc->sc_wdcdev.sc_atac.atac_dma_cap = 2;
    148 	switch (sc->sc_pp->ide_product) {
    149 	case PCI_PRODUCT_ACARD_ATP860:
    150 	case PCI_PRODUCT_ACARD_ATP860A:
    151 		sc->sc_wdcdev.sc_atac.atac_udma_cap = 4;
    152 		break;
    153 	case PCI_PRODUCT_ACARD_ATP865:
    154 	case PCI_PRODUCT_ACARD_ATP865A:
    155 		sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
    156 		break;
    157 	default:
    158 		sc->sc_wdcdev.sc_atac.atac_udma_cap = 2;
    159 		break;
    160 	}
    161 
    162 	sc->sc_wdcdev.sc_atac.atac_set_modes = acard_setup_channel;
    163 	sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray;
    164 	sc->sc_wdcdev.sc_atac.atac_nchannels = 2;
    165 
    166 	wdc_allocate_regs(&sc->sc_wdcdev);
    167 
    168 	for (i = 0; i < sc->sc_wdcdev.sc_atac.atac_nchannels; i++) {
    169 		cp = &sc->pciide_channels[i];
    170 		if (pciide_chansetup(sc, i, interface) == 0)
    171 			continue;
    172 		pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize,
    173 		    pciide_pci_intr);
    174 	}
    175 	if (!ACARD_IS_850(sc)) {
    176 		u_int32_t reg;
    177 		reg = pci_conf_read(sc->sc_pc, sc->sc_tag, ATP8x0_CTRL);
    178 		reg &= ~ATP860_CTRL_INT;
    179 		pci_conf_write(sc->sc_pc, sc->sc_tag, ATP8x0_CTRL, reg);
    180 	}
    181 }
    182 
    183 static void
    184 acard_setup_channel(struct ata_channel *chp)
    185 {
    186 	struct ata_drive_datas *drvp;
    187 	struct atac_softc *atac = chp->ch_atac;
    188 	struct pciide_channel *cp = CHAN_TO_PCHAN(chp);
    189 	struct pciide_softc *sc = CHAN_TO_PCIIDE(chp);
    190 	int channel = chp->ch_channel;
    191 	int drive, s;
    192 	u_int32_t idetime, udma_mode;
    193 	u_int32_t idedma_ctl;
    194 
    195 	/* setup DMA if needed */
    196 	pciide_channel_dma_setup(cp);
    197 
    198 	if (ACARD_IS_850(sc)) {
    199 		idetime = 0;
    200 		udma_mode = pci_conf_read(sc->sc_pc, sc->sc_tag, ATP850_UDMA);
    201 		udma_mode &= ~ATP850_UDMA_MASK(channel);
    202 	} else {
    203 		idetime = pci_conf_read(sc->sc_pc, sc->sc_tag, ATP860_IDETIME);
    204 		idetime &= ~ATP860_SETTIME_MASK(channel);
    205 		udma_mode = pci_conf_read(sc->sc_pc, sc->sc_tag, ATP860_UDMA);
    206 		udma_mode &= ~ATP860_UDMA_MASK(channel);
    207 
    208 		/* check 80 pins cable */
    209 		if ((chp->ch_drive[0].drive_flags & DRIVE_UDMA) ||
    210 		    (chp->ch_drive[1].drive_flags & DRIVE_UDMA)) {
    211 			if (pci_conf_read(sc->sc_pc, sc->sc_tag, ATP8x0_CTRL)
    212 			    & ATP860_CTRL_80P(chp->ch_channel)) {
    213 				if (chp->ch_drive[0].UDMA_mode > 2)
    214 					chp->ch_drive[0].UDMA_mode = 2;
    215 				if (chp->ch_drive[1].UDMA_mode > 2)
    216 					chp->ch_drive[1].UDMA_mode = 2;
    217 			}
    218 		}
    219 	}
    220 
    221 	idedma_ctl = 0;
    222 
    223 	/* Per drive settings */
    224 	for (drive = 0; drive < 2; drive++) {
    225 		drvp = &chp->ch_drive[drive];
    226 		/* If no drive, skip */
    227 		if ((drvp->drive_flags & DRIVE) == 0)
    228 			continue;
    229 		/* add timing values, setup DMA if needed */
    230 		if ((atac->atac_cap & ATAC_CAP_UDMA) &&
    231 		    (drvp->drive_flags & DRIVE_UDMA)) {
    232 			/* use Ultra/DMA */
    233 			if (ACARD_IS_850(sc)) {
    234 				idetime |= ATP850_SETTIME(drive,
    235 				    acard_act_udma[drvp->UDMA_mode],
    236 				    acard_rec_udma[drvp->UDMA_mode]);
    237 				udma_mode |= ATP850_UDMA_MODE(channel, drive,
    238 				    acard_udma_conf[drvp->UDMA_mode]);
    239 			} else {
    240 				idetime |= ATP860_SETTIME(channel, drive,
    241 				    acard_act_udma[drvp->UDMA_mode],
    242 				    acard_rec_udma[drvp->UDMA_mode]);
    243 				udma_mode |= ATP860_UDMA_MODE(channel, drive,
    244 				    acard_udma_conf[drvp->UDMA_mode]);
    245 			}
    246 			idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
    247 		} else if ((atac->atac_cap & ATAC_CAP_DMA) &&
    248 		    (drvp->drive_flags & DRIVE_DMA)) {
    249 			/* use Multiword DMA */
    250 			s = splbio();
    251 			drvp->drive_flags &= ~DRIVE_UDMA;
    252 			splx(s);
    253 			if (ACARD_IS_850(sc)) {
    254 				idetime |= ATP850_SETTIME(drive,
    255 				    acard_act_dma[drvp->DMA_mode],
    256 				    acard_rec_dma[drvp->DMA_mode]);
    257 			} else {
    258 				idetime |= ATP860_SETTIME(channel, drive,
    259 				    acard_act_dma[drvp->DMA_mode],
    260 				    acard_rec_dma[drvp->DMA_mode]);
    261 			}
    262 			idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
    263 		} else {
    264 			/* PIO only */
    265 			s = splbio();
    266 			drvp->drive_flags &= ~(DRIVE_UDMA | DRIVE_DMA);
    267 			splx(s);
    268 			if (ACARD_IS_850(sc)) {
    269 				idetime |= ATP850_SETTIME(drive,
    270 				    acard_act_pio[drvp->PIO_mode],
    271 				    acard_rec_pio[drvp->PIO_mode]);
    272 			} else {
    273 				idetime |= ATP860_SETTIME(channel, drive,
    274 				    acard_act_pio[drvp->PIO_mode],
    275 				    acard_rec_pio[drvp->PIO_mode]);
    276 			}
    277 		pci_conf_write(sc->sc_pc, sc->sc_tag, ATP8x0_CTRL,
    278 		    pci_conf_read(sc->sc_pc, sc->sc_tag, ATP8x0_CTRL)
    279 		    | ATP8x0_CTRL_EN(channel));
    280 		}
    281 	}
    282 
    283 	if (idedma_ctl != 0) {
    284 		/* Add software bits in status register */
    285 		bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 0,
    286 		    idedma_ctl);
    287 	}
    288 
    289 	if (ACARD_IS_850(sc)) {
    290 		pci_conf_write(sc->sc_pc, sc->sc_tag,
    291 		    ATP850_IDETIME(channel), idetime);
    292 		pci_conf_write(sc->sc_pc, sc->sc_tag, ATP850_UDMA, udma_mode);
    293 	} else {
    294 		pci_conf_write(sc->sc_pc, sc->sc_tag, ATP860_IDETIME, idetime);
    295 		pci_conf_write(sc->sc_pc, sc->sc_tag, ATP860_UDMA, udma_mode);
    296 	}
    297 }
    298 
    299 #if 0 /* XXX !! */
    300 static int
    301 acard_pci_intr(void *arg)
    302 {
    303 	struct pciide_softc *sc = arg;
    304 	struct pciide_channel *cp;
    305 	struct ata_channel *wdc_cp;
    306 	int rv = 0;
    307 	int dmastat, i, crv;
    308 
    309 	for (i = 0; i < sc->sc_wdcdev.sc_atac.atac_nchannels; i++) {
    310 		cp = &sc->pciide_channels[i];
    311 		dmastat = bus_space_read_1(sc->sc_dma_iot,
    312 		    cp->dma_iohs[IDEDMA_CTL], 0);
    313 		if ((dmastat & IDEDMA_CTL_INTR) == 0)
    314 			continue;
    315 		wdc_cp = &cp->ata_channel;
    316 		if ((wdc_cp->ch_flags & ATACH_IRQ_WAIT) == 0) {
    317 			(void)wdcintr(wdc_cp);
    318 			bus_space_write_1(sc->sc_dma_iot,
    319 			    cp->dma_iohs[IDEDMA_CTL], 0, dmastat);
    320 			continue;
    321 		}
    322 		crv = wdcintr(wdc_cp);
    323 		if (crv == 0) {
    324 			printf("%s:%d: bogus intr\n",
    325 			    device_xname(sc->sc_wdcdev.sc_atac.atac_dev), i);
    326 			bus_space_write_1(sc->sc_dma_iot,
    327 			    cp->dma_iohs[IDEDMA_CTL], 0, dmastat);
    328 		} else if (crv == 1)
    329 			rv = 1;
    330 		else if (rv == 0)
    331 			rv = crv;
    332 	}
    333 	return rv;
    334 }
    335 #endif
    336