aceride.c revision 1.25
1 /* $NetBSD: aceride.c,v 1.25 2008/03/18 20:46:36 cube Exp $ */ 2 3 /* 4 * Copyright (c) 1999, 2000, 2001 Manuel Bouyer. 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: aceride.c,v 1.25 2008/03/18 20:46:36 cube Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 38 #include <dev/pci/pcivar.h> 39 #include <dev/pci/pcidevs.h> 40 #include <dev/pci/pciidereg.h> 41 #include <dev/pci/pciidevar.h> 42 #include <dev/pci/pciide_acer_reg.h> 43 44 static int acer_pcib_match(struct pci_attach_args *); 45 static void acer_do_reset(struct ata_channel *, int); 46 static void acer_chip_map(struct pciide_softc*, struct pci_attach_args*); 47 static void acer_setup_channel(struct ata_channel*); 48 static int acer_pci_intr(void *); 49 50 static int aceride_match(device_t, cfdata_t, void *); 51 static void aceride_attach(device_t, device_t, void *); 52 53 struct aceride_softc { 54 struct pciide_softc pciide_sc; 55 struct pci_attach_args pcib_pa; 56 }; 57 58 CFATTACH_DECL_NEW(aceride, sizeof(struct aceride_softc), 59 aceride_match, aceride_attach, NULL, NULL); 60 61 static const struct pciide_product_desc pciide_acer_products[] = { 62 { PCI_PRODUCT_ALI_M5229, 63 0, 64 "Acer Labs M5229 UDMA IDE Controller", 65 acer_chip_map, 66 }, 67 { 0, 68 0, 69 NULL, 70 NULL 71 } 72 }; 73 74 static int 75 aceride_match(device_t parent, cfdata_t match, void *aux) 76 { 77 struct pci_attach_args *pa = aux; 78 79 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ALI && 80 PCI_CLASS(pa->pa_class) == PCI_CLASS_MASS_STORAGE && 81 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_IDE) { 82 if (pciide_lookup_product(pa->pa_id, pciide_acer_products)) 83 return (2); 84 } 85 return (0); 86 } 87 88 static void 89 aceride_attach(device_t parent, device_t self, void *aux) 90 { 91 struct pci_attach_args *pa = aux; 92 struct pciide_softc *sc = device_private(self); 93 94 sc->sc_wdcdev.sc_atac.atac_dev = self; 95 96 pciide_common_attach(sc, pa, 97 pciide_lookup_product(pa->pa_id, pciide_acer_products)); 98 } 99 100 static int 101 acer_pcib_match(struct pci_attach_args *pa) 102 { 103 /* 104 * we need to access the PCI config space of the pcib, see 105 * acer_do_reset() 106 */ 107 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE && 108 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_ISA && 109 PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ALI && 110 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ALI_M1543) 111 return 1; 112 return 0; 113 } 114 115 static void 116 acer_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa) 117 { 118 struct pciide_channel *cp; 119 int channel; 120 pcireg_t cr, interface; 121 bus_size_t cmdsize, ctlsize; 122 pcireg_t rev = PCI_REVISION(pa->pa_class); 123 struct aceride_softc *acer_sc = (struct aceride_softc *)sc; 124 125 if (pciide_chipen(sc, pa) == 0) 126 return; 127 128 aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, 129 "bus-master DMA support present"); 130 pciide_mapreg_dma(sc, pa); 131 aprint_verbose("\n"); 132 sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_DATA32; 133 if (sc->sc_dma_ok) { 134 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA; 135 if (rev >= 0x20) { 136 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_UDMA; 137 if (rev >= 0xC7) 138 sc->sc_wdcdev.sc_atac.atac_udma_cap = 6; 139 else if (rev >= 0xC4) 140 sc->sc_wdcdev.sc_atac.atac_udma_cap = 5; 141 else if (rev >= 0xC2) 142 sc->sc_wdcdev.sc_atac.atac_udma_cap = 4; 143 else 144 sc->sc_wdcdev.sc_atac.atac_udma_cap = 2; 145 } 146 sc->sc_wdcdev.irqack = pciide_irqack; 147 } 148 149 sc->sc_wdcdev.sc_atac.atac_pio_cap = 4; 150 sc->sc_wdcdev.sc_atac.atac_dma_cap = 2; 151 sc->sc_wdcdev.sc_atac.atac_set_modes = acer_setup_channel; 152 sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; 153 sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS; 154 155 pciide_pci_write(sc->sc_pc, sc->sc_tag, ACER_CDRC, 156 (pciide_pci_read(sc->sc_pc, sc->sc_tag, ACER_CDRC) | 157 ACER_CDRC_DMA_EN) & ~ACER_CDRC_FIFO_DISABLE); 158 159 /* Enable "microsoft register bits" R/W. */ 160 pciide_pci_write(sc->sc_pc, sc->sc_tag, ACER_CCAR3, 161 pciide_pci_read(sc->sc_pc, sc->sc_tag, ACER_CCAR3) | ACER_CCAR3_PI); 162 pciide_pci_write(sc->sc_pc, sc->sc_tag, ACER_CCAR1, 163 pciide_pci_read(sc->sc_pc, sc->sc_tag, ACER_CCAR1) & 164 ~(ACER_CHANSTATUS_RO|PCIIDE_CHAN_RO(0)|PCIIDE_CHAN_RO(1))); 165 pciide_pci_write(sc->sc_pc, sc->sc_tag, ACER_CCAR2, 166 pciide_pci_read(sc->sc_pc, sc->sc_tag, ACER_CCAR2) & 167 ~ACER_CHANSTATUSREGS_RO); 168 cr = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_CLASS_REG); 169 cr |= (PCIIDE_CHANSTATUS_EN << PCI_INTERFACE_SHIFT); 170 171 { 172 /* 173 * some BIOSes (port-cats ABLE) enable native mode, but don't 174 * setup everything correctly, so allow the forcing of 175 * compat mode 176 */ 177 bool force_compat_mode; 178 bool property_is_set; 179 property_is_set = prop_dictionary_get_bool( 180 device_properties(sc->sc_wdcdev.sc_atac.atac_dev), 181 "ali1543-ide-force-compat-mode", 182 &force_compat_mode); 183 if (property_is_set && force_compat_mode) { 184 cr &= ~((PCIIDE_INTERFACE_PCI(0) 185 | PCIIDE_INTERFACE_PCI(1)) 186 << PCI_INTERFACE_SHIFT); 187 } 188 } 189 190 pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_CLASS_REG, cr); 191 /* Don't use cr, re-read the real register content instead */ 192 interface = PCI_INTERFACE(pci_conf_read(sc->sc_pc, sc->sc_tag, 193 PCI_CLASS_REG)); 194 195 /* From linux: enable "Cable Detection" */ 196 if (rev >= 0xC2) { 197 pciide_pci_write(sc->sc_pc, sc->sc_tag, ACER_0x4B, 198 pciide_pci_read(sc->sc_pc, sc->sc_tag, ACER_0x4B) 199 | ACER_0x4B_CDETECT); 200 } 201 202 wdc_allocate_regs(&sc->sc_wdcdev); 203 if (rev == 0xC3) { 204 /* install reset bug workaround */ 205 if (pci_find_device(&acer_sc->pcib_pa, acer_pcib_match) == 0) { 206 aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev, 207 "WARNING: can't find pci-isa bridge\n"); 208 } else 209 sc->sc_wdcdev.reset = acer_do_reset; 210 } 211 212 for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels; 213 channel++) { 214 cp = &sc->pciide_channels[channel]; 215 if (pciide_chansetup(sc, channel, interface) == 0) 216 continue; 217 if ((interface & PCIIDE_CHAN_EN(channel)) == 0) { 218 aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev, 219 "%s channel ignored (disabled)\n", cp->name); 220 cp->ata_channel.ch_flags |= ATACH_DISABLED; 221 continue; 222 } 223 /* newer controllers seems to lack the ACER_CHIDS. Sigh */ 224 pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize, 225 (rev >= 0xC2) ? pciide_pci_intr : acer_pci_intr); 226 } 227 } 228 229 static void 230 acer_do_reset(struct ata_channel *chp, int poll) 231 { 232 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 233 struct aceride_softc *acer_sc = (struct aceride_softc *)sc; 234 u_int8_t reg; 235 236 /* 237 * From OpenSolaris: after a reset we need to disable/enable the 238 * corresponding channel, or data corruption will occur in 239 * UltraDMA modes 240 */ 241 242 wdc_do_reset(chp, poll); 243 reg = pciide_pci_read(acer_sc->pcib_pa.pa_pc, acer_sc->pcib_pa.pa_tag, 244 ACER_PCIB_CTRL); 245 pciide_pci_write(acer_sc->pcib_pa.pa_pc, acer_sc->pcib_pa.pa_tag, 246 ACER_PCIB_CTRL, reg & ~ACER_PCIB_CTRL_ENCHAN(chp->ch_channel)); 247 delay(1000); 248 pciide_pci_write(acer_sc->pcib_pa.pa_pc, acer_sc->pcib_pa.pa_tag, 249 ACER_PCIB_CTRL, reg); 250 } 251 252 static void 253 acer_setup_channel(struct ata_channel *chp) 254 { 255 struct ata_drive_datas *drvp; 256 int drive, s; 257 u_int32_t acer_fifo_udma; 258 u_int32_t idedma_ctl; 259 struct pciide_channel *cp = (struct pciide_channel*)chp; 260 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 261 262 idedma_ctl = 0; 263 acer_fifo_udma = pci_conf_read(sc->sc_pc, sc->sc_tag, ACER_FTH_UDMA); 264 ATADEBUG_PRINT(("acer_setup_channel: old fifo/udma reg 0x%x\n", 265 acer_fifo_udma), DEBUG_PROBE); 266 /* setup DMA if needed */ 267 pciide_channel_dma_setup(cp); 268 269 if ((chp->ch_drive[0].drive_flags | chp->ch_drive[1].drive_flags) & 270 DRIVE_UDMA) { /* check 80 pins cable */ 271 if (pciide_pci_read(sc->sc_pc, sc->sc_tag, ACER_0x4A) & 272 ACER_0x4A_80PIN(chp->ch_channel)) { 273 if (chp->ch_drive[0].UDMA_mode > 2) 274 chp->ch_drive[0].UDMA_mode = 2; 275 if (chp->ch_drive[1].UDMA_mode > 2) 276 chp->ch_drive[1].UDMA_mode = 2; 277 } 278 } 279 280 for (drive = 0; drive < 2; drive++) { 281 drvp = &chp->ch_drive[drive]; 282 /* If no drive, skip */ 283 if ((drvp->drive_flags & DRIVE) == 0) 284 continue; 285 ATADEBUG_PRINT(("acer_setup_channel: old timings reg for " 286 "channel %d drive %d 0x%x\n", chp->ch_channel, drive, 287 pciide_pci_read(sc->sc_pc, sc->sc_tag, 288 ACER_IDETIM(chp->ch_channel, drive))), DEBUG_PROBE); 289 /* clear FIFO/DMA mode */ 290 acer_fifo_udma &= ~(ACER_FTH_OPL(chp->ch_channel, drive, 0x3) | 291 ACER_UDMA_EN(chp->ch_channel, drive) | 292 ACER_UDMA_TIM(chp->ch_channel, drive, 0x7)); 293 294 /* add timing values, setup DMA if needed */ 295 if ((drvp->drive_flags & DRIVE_DMA) == 0 && 296 (drvp->drive_flags & DRIVE_UDMA) == 0) { 297 acer_fifo_udma |= 298 ACER_FTH_OPL(chp->ch_channel, drive, 0x1); 299 goto pio; 300 } 301 302 acer_fifo_udma |= ACER_FTH_OPL(chp->ch_channel, drive, 0x2); 303 if (drvp->drive_flags & DRIVE_UDMA) { 304 /* use Ultra/DMA */ 305 s = splbio(); 306 drvp->drive_flags &= ~DRIVE_DMA; 307 splx(s); 308 acer_fifo_udma |= ACER_UDMA_EN(chp->ch_channel, drive); 309 acer_fifo_udma |= 310 ACER_UDMA_TIM(chp->ch_channel, drive, 311 acer_udma[drvp->UDMA_mode]); 312 /* XXX disable if one drive < UDMA3 ? */ 313 if (drvp->UDMA_mode >= 3) { 314 pciide_pci_write(sc->sc_pc, sc->sc_tag, 315 ACER_0x4B, 316 pciide_pci_read(sc->sc_pc, sc->sc_tag, 317 ACER_0x4B) | ACER_0x4B_UDMA66); 318 } 319 } else { 320 /* 321 * use Multiword DMA 322 * Timings will be used for both PIO and DMA, 323 * so adjust DMA mode if needed 324 */ 325 if (drvp->PIO_mode > (drvp->DMA_mode + 2)) 326 drvp->PIO_mode = drvp->DMA_mode + 2; 327 if (drvp->DMA_mode + 2 > (drvp->PIO_mode)) 328 drvp->DMA_mode = (drvp->PIO_mode > 2) ? 329 drvp->PIO_mode - 2 : 0; 330 if (drvp->DMA_mode == 0) 331 drvp->PIO_mode = 0; 332 } 333 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 334 pio: pciide_pci_write(sc->sc_pc, sc->sc_tag, 335 ACER_IDETIM(chp->ch_channel, drive), 336 acer_pio[drvp->PIO_mode]); 337 } 338 ATADEBUG_PRINT(("acer_setup_channel: new fifo/udma reg 0x%x\n", 339 acer_fifo_udma), DEBUG_PROBE); 340 pci_conf_write(sc->sc_pc, sc->sc_tag, ACER_FTH_UDMA, acer_fifo_udma); 341 if (idedma_ctl != 0) { 342 /* Add software bits in status register */ 343 bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 0, 344 idedma_ctl); 345 } 346 } 347 348 static int 349 acer_pci_intr(void *arg) 350 { 351 struct pciide_softc *sc = arg; 352 struct pciide_channel *cp; 353 struct ata_channel *wdc_cp; 354 int i, rv, crv; 355 u_int32_t chids; 356 357 rv = 0; 358 chids = pciide_pci_read(sc->sc_pc, sc->sc_tag, ACER_CHIDS); 359 for (i = 0; i < sc->sc_wdcdev.sc_atac.atac_nchannels; i++) { 360 cp = &sc->pciide_channels[i]; 361 wdc_cp = &cp->ata_channel; 362 /* If a compat channel skip. */ 363 if (cp->compat) 364 continue; 365 if (chids & ACER_CHIDS_INT(i)) { 366 crv = wdcintr(wdc_cp); 367 if (crv == 0) { 368 aprint_error("%s:%d: bogus intr\n", 369 device_xname( 370 sc->sc_wdcdev.sc_atac.atac_dev), i); 371 pciide_irqack(wdc_cp); 372 } else 373 rv = 1; 374 } 375 } 376 return rv; 377 } 378
Indexes created Wed Sep 24 14:09:57 GMT 2025