1 /* $NetBSD: toshide.c,v 1.4 2011/04/04 20:37:56 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 2009 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: toshide.c,v 1.4 2011/04/04 20:37:56 dyoung 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_piccolo_reg.h> 40 41 static void piccolo_chip_map(struct pciide_softc *, 42 const struct pci_attach_args *); 43 static void piccolo_setup_channel(struct ata_channel *); 44 45 static int piccolo_match(device_t, cfdata_t, void *); 46 static void piccolo_attach(device_t, device_t, void *); 47 48 CFATTACH_DECL_NEW(toshide, sizeof(struct pciide_softc), 49 piccolo_match, piccolo_attach, NULL, NULL); 50 51 static const struct pciide_product_desc pciide_toshiba2_products[] = { 52 { 53 PCI_PRODUCT_TOSHIBA2_PICCOLO, 54 0, 55 "Toshiba Piccolo IDE controller", 56 piccolo_chip_map, 57 }, 58 { 59 PCI_PRODUCT_TOSHIBA2_PICCOLO2, 60 0, 61 "Toshiba Piccolo 2 IDE controller", 62 piccolo_chip_map, 63 }, 64 { 65 PCI_PRODUCT_TOSHIBA2_PICCOLO3, 66 0, 67 "Toshiba Piccolo 3 IDE controller", 68 piccolo_chip_map, 69 }, 70 { 71 PCI_PRODUCT_TOSHIBA2_PICCOLO5, 72 0, 73 "Toshiba Piccolo 5 IDE controller", 74 piccolo_chip_map, 75 }, 76 { 77 0, 78 0, 79 NULL, 80 NULL, 81 } 82 }; 83 84 static int 85 piccolo_match(device_t parent, cfdata_t match, void *aux) 86 { 87 struct pci_attach_args *pa = aux; 88 89 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TOSHIBA2) { 90 if (pciide_lookup_product(pa->pa_id, pciide_toshiba2_products)) 91 return 2; 92 } 93 return 0; 94 } 95 96 static void 97 piccolo_attach(device_t parent, device_t self, void *aux) 98 { 99 struct pci_attach_args *pa = aux; 100 struct pciide_softc *sc = device_private(self); 101 const struct pciide_product_desc *pp; 102 103 sc->sc_wdcdev.sc_atac.atac_dev = self; 104 105 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TOSHIBA2) 106 pp = pciide_lookup_product(pa->pa_id, pciide_toshiba2_products); 107 else 108 pp = NULL; 109 if (pp == NULL) 110 panic("toshide_attach"); 111 pciide_common_attach(sc, pa, pp); 112 } 113 114 static void 115 piccolo_chip_map(struct pciide_softc *sc, const struct pci_attach_args *pa) 116 { 117 struct pciide_channel *cp; 118 pcireg_t interface; 119 int channel; 120 121 if (pciide_chipen(sc, pa) == 0) 122 return; 123 124 aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, 125 "bus-master DMA support present"); 126 127 pciide_mapreg_dma(sc, pa); 128 aprint_verbose("\n"); 129 130 sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA32 | ATAC_CAP_DATA16; 131 sc->sc_wdcdev.sc_atac.atac_pio_cap = 5; 132 133 if (sc->sc_dma_ok) { 134 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA | ATAC_CAP_UDMA; 135 sc->sc_wdcdev.irqack = pciide_irqack; 136 sc->sc_wdcdev.sc_atac.atac_dma_cap = 3; 137 sc->sc_wdcdev.sc_atac.atac_udma_cap = 2; 138 } 139 140 sc->sc_wdcdev.sc_atac.atac_set_modes = piccolo_setup_channel; 141 142 sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; 143 sc->sc_wdcdev.sc_atac.atac_nchannels = 1; 144 /* 145 * XXX one for now. We'll figure out how to talk to the second channel 146 * later, hopefully! Second interface config is via the 147 * "alternate PCI Configuration Space" whatever that is! 148 */ 149 150 interface = PCI_INTERFACE(pa->pa_class); 151 152 wdc_allocate_regs(&sc->sc_wdcdev); 153 154 for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels; 155 channel++) { 156 cp = &sc->pciide_channels[channel]; 157 if (pciide_chansetup(sc, channel, interface) == 0) 158 continue; 159 160 pciide_mapchan(pa, cp, interface, pciide_pci_intr); 161 } 162 } 163 164 static void 165 piccolo_setup_channel(struct ata_channel *chp) 166 { 167 struct ata_drive_datas *drvp; 168 struct pciide_channel *cp = CHAN_TO_PCHAN(chp); 169 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 170 u_int32_t idedma_ctl; 171 int drive, s; 172 pcireg_t pxdx; 173 #ifdef TOSHIDE_DEBUG 174 pcireg_t pxdx_prime; 175 #endif 176 177 idedma_ctl = 0; 178 179 /* Set up DMA if needed. */ 180 pciide_channel_dma_setup(cp); 181 182 for (drive = 0; drive < 2; drive++) { 183 184 drvp = &chp->ch_drive[drive]; 185 /* If no drive, skip */ 186 if ((drvp->drive_flags & DRIVE) == 0) 187 continue; 188 189 if (drvp->drive_flags & DRIVE_UDMA) { 190 /* use Ultra/DMA */ 191 s = splbio(); 192 drvp->drive_flags &= ~DRIVE_DMA; 193 splx(s); 194 195 /* 196 * Use UDMA - we can go up to mode 2 so no need to 197 * check anything since nearly all drives with UDMA 198 * are mode 2 or faster 199 */ 200 pxdx = pci_conf_read(sc->sc_pc, sc->sc_tag, 201 PICCOLO_DMA_TIMING); 202 pxdx &= PICCOLO_UDMA_MASK; 203 pxdx |= piccolo_udma_times[2]; 204 pci_conf_write(sc->sc_pc, sc->sc_tag, 205 PICCOLO_DMA_TIMING, pxdx); 206 #ifdef TOSHIDE_DEBUG 207 /* XXX sanity check */ 208 pxdx_prime = pci_conf_read(sc->sc_pc, sc->sc_tag, 209 PICCOLO_DMA_TIMING); 210 aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, 211 "UDMA want %x, set %x, got %x\n", 212 piccolo_udma_times[2], pxdx, pxdx_prime); 213 #endif 214 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 215 216 } 217 else if (drvp->drive_flags & DRIVE_DMA) { 218 /* 219 * Use Multiword DMA 220 */ 221 if (drvp->PIO_mode > (drvp->DMA_mode + 2)) 222 drvp->PIO_mode = drvp->DMA_mode + 2; 223 if (drvp->DMA_mode + 2 > (drvp->PIO_mode)) 224 drvp->DMA_mode = (drvp->PIO_mode > 2) ? 225 drvp->PIO_mode - 2 : 0; 226 227 pxdx = pci_conf_read(sc->sc_pc, sc->sc_tag, 228 PICCOLO_DMA_TIMING); 229 pxdx &= PICCOLO_DMA_MASK; 230 pxdx |= piccolo_mw_dma_times[drvp->DMA_mode]; 231 pci_conf_write(sc->sc_pc, sc->sc_tag, 232 PICCOLO_DMA_TIMING, pxdx); 233 #ifdef TOSHIDE_DEBUG 234 /* XXX sanity check */ 235 pxdx_prime = pci_conf_read(sc->sc_pc, sc->sc_tag, 236 PICCOLO_DMA_TIMING); 237 aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, 238 "DMA %d want %x, set %x, got %x\n", 239 drvp->DMA_mode, 240 piccolo_mw_dma_times[drvp->DMA_mode], pxdx, 241 pxdx_prime); 242 #endif 243 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 244 245 } 246 else { 247 pxdx = pci_conf_read(sc->sc_pc, sc->sc_tag, 248 PICCOLO_PIO_TIMING); 249 pxdx &= PICCOLO_PIO_MASK; 250 pxdx |= piccolo_pio_times[drvp->PIO_mode]; 251 pci_conf_write(sc->sc_pc, sc->sc_tag, 252 PICCOLO_PIO_TIMING, pxdx); 253 #ifdef TOSHIDE_DEBUG 254 /* XXX sanity check */ 255 pxdx_prime = pci_conf_read(sc->sc_pc, sc->sc_tag, 256 PICCOLO_PIO_TIMING); 257 aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, 258 "PIO %d want %x, set %x, got %x\n", drvp->PIO_mode, 259 piccolo_pio_times[drvp->PIO_mode], pxdx, 260 pxdx_prime); 261 #endif 262 } 263 264 } 265 if (idedma_ctl != 0) { 266 /* Add software bits in status register */ 267 bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 0, 268 idedma_ctl); 269 } 270 } 271