1 /*- 2 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_ata.h" 31 #include <sys/param.h> 32 #include <sys/module.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/ata.h> 36 #include <sys/bus.h> 37 #include <sys/endian.h> 38 #include <sys/malloc.h> 39 #include <sys/lock.h> 40 #include <sys/mutex.h> 41 #include <sys/sema.h> 42 #include <sys/taskqueue.h> 43 #include <vm/uma.h> 44 #include <machine/stdarg.h> 45 #include <machine/resource.h> 46 #include <machine/bus.h> 47 #include <sys/rman.h> 48 #include <dev/pci/pcivar.h> 49 #include <dev/pci/pcireg.h> 50 #include <dev/ata/ata-all.h> 51 #include <dev/ata/ata-pci.h> 52 #include <ata_if.h> 53 54 /* local prototypes */ 55 static int ata_ati_chipinit(device_t dev); 56 static int ata_ati_dumb_ch_attach(device_t dev); 57 static int ata_ati_ixp700_ch_attach(device_t dev); 58 static int ata_ati_setmode(device_t dev, int target, int mode); 59 60 /* misc defines */ 61 #define SII_MEMIO 1 /* must match ata_siliconimage.c's definition */ 62 #define SII_BUG 0x04 /* must match ata_siliconimage.c's definition */ 63 64 #define ATI_SATA SII_MEMIO 65 #define ATI_PATA 0x02 66 #define ATI_AHCI 0x04 67 68 static int force_ahci = 1; 69 TUNABLE_INT("hw.ahci.force", &force_ahci); 70 71 /* 72 * ATI chipset support functions 73 */ 74 static int 75 ata_ati_probe(device_t dev) 76 { 77 struct ata_pci_controller *ctlr = device_get_softc(dev); 78 static const struct ata_chip_id const ids[] = 79 {{ ATA_ATI_IXP200, 0x00, ATI_PATA, 0, ATA_UDMA5, "IXP200" }, 80 { ATA_ATI_IXP300, 0x00, ATI_PATA, 0, ATA_UDMA6, "IXP300" }, 81 { ATA_ATI_IXP300_S1, 0x00, ATI_SATA, SII_BUG, ATA_SA150, "IXP300" }, 82 { ATA_ATI_IXP400, 0x00, ATI_PATA, 0, ATA_UDMA6, "IXP400" }, 83 { ATA_ATI_IXP400_S1, 0x00, ATI_SATA, SII_BUG, ATA_SA150, "IXP400" }, 84 { ATA_ATI_IXP400_S2, 0x00, ATI_SATA, SII_BUG, ATA_SA150, "IXP400" }, 85 { ATA_ATI_IXP600, 0x00, ATI_PATA, 0, ATA_UDMA6, "IXP600" }, 86 { ATA_ATI_IXP600_S1, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP600" }, 87 { ATA_ATI_IXP700, 0x00, ATI_PATA, 0, ATA_UDMA6, "IXP700/800" }, 88 { ATA_ATI_IXP700_S1, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP700/800" }, 89 { ATA_ATI_IXP700_S2, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP700/800" }, 90 { ATA_ATI_IXP700_S3, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP700/800" }, 91 { ATA_ATI_IXP700_S4, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP700/800" }, 92 { ATA_ATI_IXP800_S1, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP800" }, 93 { ATA_ATI_IXP800_S2, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP800" }, 94 { 0, 0, 0, 0, 0, 0}}; 95 96 if (pci_get_vendor(dev) != ATA_ATI_ID) 97 return ENXIO; 98 99 if (!(ctlr->chip = ata_match_chip(dev, ids))) 100 return ENXIO; 101 102 ata_set_desc(dev); 103 104 switch (ctlr->chip->cfg1) { 105 case ATI_PATA: 106 ctlr->chipinit = ata_ati_chipinit; 107 break; 108 case ATI_SATA: 109 /* 110 * the ATI SATA controller is actually a SiI 3112 controller 111 */ 112 ctlr->chipinit = ata_sii_chipinit; 113 break; 114 case ATI_AHCI: 115 if (force_ahci == 1 || pci_get_subclass(dev) != PCIS_STORAGE_IDE) 116 ctlr->chipinit = ata_ahci_chipinit; 117 else 118 ctlr->chipinit = ata_ati_chipinit; 119 break; 120 } 121 return (BUS_PROBE_DEFAULT); 122 } 123 124 static int 125 ata_ati_chipinit(device_t dev) 126 { 127 struct ata_pci_controller *ctlr = device_get_softc(dev); 128 device_t smbdev; 129 uint8_t satacfg; 130 131 if (ata_setup_interrupt(dev, ata_generic_intr)) 132 return ENXIO; 133 134 if (ctlr->chip->cfg1 == ATI_AHCI) { 135 ctlr->ch_attach = ata_ati_dumb_ch_attach; 136 ctlr->setmode = ata_sata_setmode; 137 return (0); 138 } 139 switch (ctlr->chip->chipid) { 140 case ATA_ATI_IXP600: 141 /* IXP600 only has 1 PATA channel */ 142 ctlr->channels = 1; 143 break; 144 case ATA_ATI_IXP700: 145 /* 146 * When "combined mode" is enabled, an additional PATA channel is 147 * emulated with two SATA ports and appears on this device. 148 * This mode can only be detected via SMB controller. 149 */ 150 smbdev = pci_find_device(ATA_ATI_ID, 0x4385); 151 if (smbdev != NULL) { 152 satacfg = pci_read_config(smbdev, 0xad, 1); 153 if (bootverbose) 154 device_printf(dev, "SATA controller %s (%s%s channel)\n", 155 (satacfg & 0x01) == 0 ? "disabled" : "enabled", 156 (satacfg & 0x08) == 0 ? "" : "combined mode, ", 157 (satacfg & 0x10) == 0 ? "primary" : "secondary"); 158 ctlr->chipset_data = (void *)(uintptr_t)satacfg; 159 /* 160 * If SATA controller is enabled but combined mode is disabled, 161 * we have only one PATA channel. Ignore a non-existent channel. 162 */ 163 if ((satacfg & 0x09) == 0x01) 164 ctlr->ichannels &= ~(1 << ((satacfg & 0x10) >> 4)); 165 else { 166 ctlr->ch_attach = ata_ati_ixp700_ch_attach; 167 } 168 } 169 break; 170 } 171 172 ctlr->setmode = ata_ati_setmode; 173 return 0; 174 } 175 176 static int 177 ata_ati_dumb_ch_attach(device_t dev) 178 { 179 struct ata_channel *ch = device_get_softc(dev); 180 181 if (ata_pci_ch_attach(dev)) 182 return ENXIO; 183 ch->flags |= ATA_SATA; 184 return (0); 185 } 186 187 static int 188 ata_ati_ixp700_ch_attach(device_t dev) 189 { 190 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 191 struct ata_channel *ch = device_get_softc(dev); 192 uint8_t satacfg = (uint8_t)(uintptr_t)ctlr->chipset_data; 193 194 /* Setup the usual register normal pci style. */ 195 if (ata_pci_ch_attach(dev)) 196 return ENXIO; 197 198 /* One of channels is PATA, another is SATA. */ 199 if (ch->unit == ((satacfg & 0x10) >> 4)) 200 ch->flags |= ATA_SATA; 201 return (0); 202 } 203 204 static int 205 ata_ati_setmode(device_t dev, int target, int mode) 206 { 207 device_t parent = device_get_parent(dev); 208 struct ata_pci_controller *ctlr = device_get_softc(parent); 209 struct ata_channel *ch = device_get_softc(dev); 210 int devno = (ch->unit << 1) + target; 211 int offset = (devno ^ 0x01) << 3; 212 int piomode; 213 static const uint8_t piotimings[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 }; 214 static const uint8_t dmatimings[] = { 0x77, 0x21, 0x20 }; 215 216 mode = min(mode, ctlr->chip->max_dma); 217 if (mode >= ATA_UDMA0) { 218 /* Set UDMA mode, enable UDMA, set WDMA2/PIO4 */ 219 pci_write_config(parent, 0x56, 220 (pci_read_config(parent, 0x56, 2) & 221 ~(0xf << (devno << 2))) | 222 ((mode & ATA_MODE_MASK) << (devno << 2)), 2); 223 pci_write_config(parent, 0x54, 224 pci_read_config(parent, 0x54, 1) | 225 (0x01 << devno), 1); 226 pci_write_config(parent, 0x44, 227 (pci_read_config(parent, 0x44, 4) & 228 ~(0xff << offset)) | 229 (dmatimings[2] << offset), 4); 230 piomode = ATA_PIO4; 231 } else if (mode >= ATA_WDMA0) { 232 /* Disable UDMA, set WDMA mode and timings, calculate PIO. */ 233 pci_write_config(parent, 0x54, 234 pci_read_config(parent, 0x54, 1) & 235 ~(0x01 << devno), 1); 236 pci_write_config(parent, 0x44, 237 (pci_read_config(parent, 0x44, 4) & 238 ~(0xff << offset)) | 239 (dmatimings[mode & ATA_MODE_MASK] << offset), 4); 240 piomode = (mode == ATA_WDMA0) ? ATA_PIO0 : 241 (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4; 242 } else { 243 /* Disable UDMA, set requested PIO. */ 244 pci_write_config(parent, 0x54, 245 pci_read_config(parent, 0x54, 1) & 246 ~(0x01 << devno), 1); 247 piomode = mode; 248 } 249 /* Set PIO mode and timings, calculated above. */ 250 pci_write_config(parent, 0x4a, 251 (pci_read_config(parent, 0x4a, 2) & 252 ~(0xf << (devno << 2))) | 253 ((piomode - ATA_PIO0) << (devno<<2)),2); 254 pci_write_config(parent, 0x40, 255 (pci_read_config(parent, 0x40, 4) & 256 ~(0xff << offset)) | 257 (piotimings[ata_mode2idx(piomode)] << offset), 4); 258 return (mode); 259 } 260 261 ATA_DECLARE_DRIVER(ata_ati); 262 MODULE_DEPEND(ata_ati, ata_ahci, 1, 1, 1); 263 MODULE_DEPEND(ata_ati, ata_sii, 1, 1, 1); 264