rccide.c revision 1.2
1 /* $NetBSD: rccide.c,v 1.2 2003/11/07 10:44:42 enami Exp $ */ 2 3 /* 4 * Copyright (c) 2003 By Noon Software, Inc. 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. The names of the authors 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 AUTHORS ``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 AUTHORS 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: rccide.c,v 1.2 2003/11/07 10:44:42 enami 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 40 void serverworks_chip_map(struct pciide_softc *, struct pci_attach_args *); 41 void serverworks_setup_channel(struct channel_softc *); 42 int serverworks_pci_intr(void *); 43 44 int rccide_match(struct device *, struct cfdata *, void *); 45 void rccide_attach(struct device *, struct device *, void *); 46 47 CFATTACH_DECL(rccide, sizeof(struct pciide_softc), 48 rccide_match, rccide_attach, NULL, NULL); 49 50 const struct pciide_product_desc pciide_serverworks_products[] = { 51 { PCI_PRODUCT_SERVERWORKS_OSB4_IDE, 52 0, 53 "ServerWorks OSB4 IDE Controller", 54 serverworks_chip_map, 55 }, 56 { PCI_PRODUCT_SERVERWORKS_CSB5_IDE, 57 0, 58 "ServerWorks CSB5 IDE Controller", 59 serverworks_chip_map, 60 }, 61 { PCI_PRODUCT_SERVERWORKS_CSB6_IDE, 62 0, 63 "ServerWorks CSB6 RAID/IDE Controller", 64 serverworks_chip_map, 65 }, 66 { PCI_PRODUCT_SERVERWORKS_CSB6_RAID, 67 0, 68 "ServerWorks CSB6 RAID/IDE Controller", 69 serverworks_chip_map, 70 }, 71 { 0, 72 0, 73 NULL, 74 NULL, 75 } 76 }; 77 78 int 79 rccide_match(struct device *parent, struct cfdata *match, void *aux) 80 { 81 struct pci_attach_args *pa = aux; 82 83 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SERVERWORKS && 84 PCI_CLASS(pa->pa_class) == PCI_CLASS_MASS_STORAGE && 85 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_IDE) { 86 if (pciide_lookup_product(pa->pa_id, 87 pciide_serverworks_products)) 88 return (2); 89 } 90 return (0); 91 } 92 93 void 94 rccide_attach(struct device *parent, struct device *self, void *aux) 95 { 96 struct pci_attach_args *pa = aux; 97 struct pciide_softc *sc = (void *)self; 98 99 pciide_common_attach(sc, pa, 100 pciide_lookup_product(pa->pa_id, pciide_serverworks_products)); 101 } 102 103 void 104 serverworks_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa) 105 { 106 struct pciide_channel *cp; 107 pcireg_t interface = PCI_INTERFACE(pa->pa_class); 108 pcitag_t pcib_tag; 109 int channel; 110 bus_size_t cmdsize, ctlsize; 111 112 if (pciide_chipen(sc, pa) == 0) 113 return; 114 115 aprint_normal("%s: bus-master DMA support present", 116 sc->sc_wdcdev.sc_dev.dv_xname); 117 pciide_mapreg_dma(sc, pa); 118 aprint_normal("\n"); 119 sc->sc_wdcdev.cap = WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_DATA32 | 120 WDC_CAPABILITY_MODE; 121 122 if (sc->sc_dma_ok) { 123 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DMA | WDC_CAPABILITY_UDMA; 124 sc->sc_wdcdev.cap |= WDC_CAPABILITY_IRQACK; 125 sc->sc_wdcdev.irqack = pciide_irqack; 126 } 127 sc->sc_wdcdev.PIO_cap = 4; 128 sc->sc_wdcdev.DMA_cap = 2; 129 switch (sc->sc_pp->ide_product) { 130 case PCI_PRODUCT_SERVERWORKS_OSB4_IDE: 131 sc->sc_wdcdev.UDMA_cap = 2; 132 break; 133 case PCI_PRODUCT_SERVERWORKS_CSB5_IDE: 134 if (PCI_REVISION(pa->pa_class) < 0x92) 135 sc->sc_wdcdev.UDMA_cap = 4; 136 else 137 sc->sc_wdcdev.UDMA_cap = 5; 138 break; 139 case PCI_PRODUCT_SERVERWORKS_CSB6_IDE: 140 case PCI_PRODUCT_SERVERWORKS_CSB6_RAID: 141 sc->sc_wdcdev.UDMA_cap = 5; 142 break; 143 } 144 145 sc->sc_wdcdev.set_modes = serverworks_setup_channel; 146 sc->sc_wdcdev.channels = sc->wdc_chanarray; 147 sc->sc_wdcdev.nchannels = 2; 148 149 for (channel = 0; channel < sc->sc_wdcdev.nchannels; channel++) { 150 cp = &sc->pciide_channels[channel]; 151 if (pciide_chansetup(sc, channel, interface) == 0) 152 continue; 153 pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize, 154 serverworks_pci_intr); 155 } 156 157 pcib_tag = pci_make_tag(pa->pa_pc, pa->pa_bus, pa->pa_device, 0); 158 pci_conf_write(pa->pa_pc, pcib_tag, 0x64, 159 (pci_conf_read(pa->pa_pc, pcib_tag, 0x64) & ~0x2000) | 0x4000); 160 } 161 162 void 163 serverworks_setup_channel(struct channel_softc *chp) 164 { 165 struct ata_drive_datas *drvp; 166 struct pciide_channel *cp = (struct pciide_channel*)chp; 167 struct pciide_softc *sc = (struct pciide_softc *)cp->wdc_channel.wdc; 168 int channel = chp->channel; 169 int drive, unit; 170 u_int32_t pio_time, dma_time, pio_mode, udma_mode; 171 u_int32_t idedma_ctl; 172 static const u_int8_t pio_modes[5] = {0x5d, 0x47, 0x34, 0x22, 0x20}; 173 static const u_int8_t dma_modes[3] = {0x77, 0x21, 0x20}; 174 175 /* setup DMA if needed */ 176 pciide_channel_dma_setup(cp); 177 178 pio_time = pci_conf_read(sc->sc_pc, sc->sc_tag, 0x40); 179 dma_time = pci_conf_read(sc->sc_pc, sc->sc_tag, 0x44); 180 pio_mode = pci_conf_read(sc->sc_pc, sc->sc_tag, 0x48); 181 udma_mode = pci_conf_read(sc->sc_pc, sc->sc_tag, 0x54); 182 183 pio_time &= ~(0xffff << (16 * channel)); 184 dma_time &= ~(0xffff << (16 * channel)); 185 pio_mode &= ~(0xff << (8 * channel + 16)); 186 udma_mode &= ~(0xff << (8 * channel + 16)); 187 udma_mode &= ~(3 << (2 * channel)); 188 189 idedma_ctl = 0; 190 191 /* Per drive settings */ 192 for (drive = 0; drive < 2; drive++) { 193 drvp = &chp->ch_drive[drive]; 194 /* If no drive, skip */ 195 if ((drvp->drive_flags & DRIVE) == 0) 196 continue; 197 unit = drive + 2 * channel; 198 /* add timing values, setup DMA if needed */ 199 pio_time |= pio_modes[drvp->PIO_mode] << (8 * (unit^1)); 200 pio_mode |= drvp->PIO_mode << (4 * unit + 16); 201 if ((chp->wdc->cap & WDC_CAPABILITY_UDMA) && 202 (drvp->drive_flags & DRIVE_UDMA)) { 203 /* use Ultra/DMA, check for 80-pin cable */ 204 if (drvp->UDMA_mode > 2 && 205 (PCI_PRODUCT(pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_SUBSYS_ID_REG)) & (1 << (14 + channel))) == 0) 206 drvp->UDMA_mode = 2; 207 dma_time |= dma_modes[drvp->DMA_mode] << (8 * (unit^1)); 208 udma_mode |= drvp->UDMA_mode << (4 * unit + 16); 209 udma_mode |= 1 << unit; 210 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 211 } else if ((chp->wdc->cap & WDC_CAPABILITY_DMA) && 212 (drvp->drive_flags & DRIVE_DMA)) { 213 /* use Multiword DMA */ 214 drvp->drive_flags &= ~DRIVE_UDMA; 215 dma_time |= dma_modes[drvp->DMA_mode] << (8 * (unit^1)); 216 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 217 } else { 218 /* PIO only */ 219 drvp->drive_flags &= ~(DRIVE_UDMA | DRIVE_DMA); 220 } 221 } 222 223 pci_conf_write(sc->sc_pc, sc->sc_tag, 0x40, pio_time); 224 pci_conf_write(sc->sc_pc, sc->sc_tag, 0x44, dma_time); 225 if (sc->sc_pp->ide_product != PCI_PRODUCT_SERVERWORKS_OSB4_IDE) 226 pci_conf_write(sc->sc_pc, sc->sc_tag, 0x48, pio_mode); 227 pci_conf_write(sc->sc_pc, sc->sc_tag, 0x54, udma_mode); 228 229 if (idedma_ctl != 0) { 230 /* Add software bits in status register */ 231 bus_space_write_1(sc->sc_dma_iot, sc->sc_dma_ioh, 232 IDEDMA_CTL + IDEDMA_SCH_OFFSET * channel, idedma_ctl); 233 } 234 } 235 236 int 237 serverworks_pci_intr(arg) 238 void *arg; 239 { 240 struct pciide_softc *sc = arg; 241 struct pciide_channel *cp; 242 struct channel_softc *wdc_cp; 243 int rv = 0; 244 int dmastat, i, crv; 245 246 for (i = 0; i < sc->sc_wdcdev.nchannels; i++) { 247 dmastat = bus_space_read_1(sc->sc_dma_iot, sc->sc_dma_ioh, 248 IDEDMA_CTL + IDEDMA_SCH_OFFSET * i); 249 if ((dmastat & (IDEDMA_CTL_ACT | IDEDMA_CTL_INTR)) != 250 IDEDMA_CTL_INTR) 251 continue; 252 cp = &sc->pciide_channels[i]; 253 wdc_cp = &cp->wdc_channel; 254 crv = wdcintr(wdc_cp); 255 if (crv == 0) { 256 printf("%s:%d: bogus intr\n", 257 sc->sc_wdcdev.sc_dev.dv_xname, i); 258 bus_space_write_1(sc->sc_dma_iot, sc->sc_dma_ioh, 259 IDEDMA_CTL + IDEDMA_SCH_OFFSET * i, dmastat); 260 } else 261 rv = 1; 262 } 263 return rv; 264 } 265
Indexes created Fri Sep 26 20:09:58 GMT 2025