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 #ifndef ATA_CAM 55 struct ata_serialize { 56 struct mtx locked_mtx; 57 int locked_ch; 58 int restart_ch; 59 }; 60 #endif 61 62 /* local prototypes */ 63 static int ata_acard_chipinit(device_t dev); 64 static int ata_acard_ch_attach(device_t dev); 65 static int ata_acard_status(device_t dev); 66 static int ata_acard_850_setmode(device_t dev, int target, int mode); 67 static int ata_acard_86X_setmode(device_t dev, int target, int mode); 68 #ifndef ATA_CAM 69 static int ata_acard_chipdeinit(device_t dev); 70 static int ata_serialize(device_t dev, int flags); 71 static void ata_serialize_init(struct ata_serialize *serial); 72 #endif 73 74 /* misc defines */ 75 #define ATP_OLD 1 76 77 /* 78 * Acard chipset support functions 79 */ 80 static int 81 ata_acard_probe(device_t dev) 82 { 83 struct ata_pci_controller *ctlr = device_get_softc(dev); 84 static const struct ata_chip_id const ids[] = 85 {{ ATA_ATP850R, 0, ATP_OLD, 0x00, ATA_UDMA2, "ATP850" }, 86 { ATA_ATP860A, 0, 0, 0x00, ATA_UDMA4, "ATP860A" }, 87 { ATA_ATP860R, 0, 0, 0x00, ATA_UDMA4, "ATP860R" }, 88 { ATA_ATP865A, 0, 0, 0x00, ATA_UDMA6, "ATP865A" }, 89 { ATA_ATP865R, 0, 0, 0x00, ATA_UDMA6, "ATP865R" }, 90 { 0, 0, 0, 0, 0, 0}}; 91 92 if (pci_get_vendor(dev) != ATA_ACARD_ID) 93 return ENXIO; 94 95 if (!(ctlr->chip = ata_match_chip(dev, ids))) 96 return ENXIO; 97 98 ata_set_desc(dev); 99 ctlr->chipinit = ata_acard_chipinit; 100 #ifndef ATA_CAM 101 ctlr->chipdeinit = ata_acard_chipdeinit; 102 #endif 103 return (BUS_PROBE_DEFAULT); 104 } 105 106 static int 107 ata_acard_chipinit(device_t dev) 108 { 109 struct ata_pci_controller *ctlr = device_get_softc(dev); 110 #ifndef ATA_CAM 111 struct ata_serialize *serial; 112 #endif 113 114 if (ata_setup_interrupt(dev, ata_generic_intr)) 115 return ENXIO; 116 117 ctlr->ch_attach = ata_acard_ch_attach; 118 ctlr->ch_detach = ata_pci_ch_detach; 119 if (ctlr->chip->cfg1 == ATP_OLD) { 120 ctlr->setmode = ata_acard_850_setmode; 121 #ifndef ATA_CAM 122 ctlr->locking = ata_serialize; 123 serial = malloc(sizeof(struct ata_serialize), 124 M_ATAPCI, M_WAITOK | M_ZERO); 125 ata_serialize_init(serial); 126 ctlr->chipset_data = serial; 127 #endif 128 } 129 else 130 ctlr->setmode = ata_acard_86X_setmode; 131 return 0; 132 } 133 134 #ifndef ATA_CAM 135 static int 136 ata_acard_chipdeinit(device_t dev) 137 { 138 struct ata_pci_controller *ctlr = device_get_softc(dev); 139 struct ata_serialize *serial; 140 141 if (ctlr->chip->cfg1 == ATP_OLD) { 142 serial = ctlr->chipset_data; 143 mtx_destroy(&serial->locked_mtx); 144 free(serial, M_ATAPCI); 145 ctlr->chipset_data = NULL; 146 } 147 return (0); 148 } 149 #endif 150 151 static int 152 ata_acard_ch_attach(device_t dev) 153 { 154 struct ata_channel *ch = device_get_softc(dev); 155 156 /* setup the usual register normal pci style */ 157 if (ata_pci_ch_attach(dev)) 158 return ENXIO; 159 160 ch->hw.status = ata_acard_status; 161 ch->flags |= ATA_NO_ATAPI_DMA; 162 return 0; 163 } 164 165 static int 166 ata_acard_status(device_t dev) 167 { 168 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 169 struct ata_channel *ch = device_get_softc(dev); 170 171 if (ctlr->chip->cfg1 == ATP_OLD && 172 ATA_LOCKING(dev, ATA_LF_WHICH) != ch->unit) 173 return 0; 174 if (ch->dma.flags & ATA_DMA_ACTIVE) { 175 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 176 177 if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != 178 ATA_BMSTAT_INTERRUPT) 179 return 0; 180 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 181 DELAY(1); 182 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 183 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 184 DELAY(1); 185 } 186 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 187 DELAY(100); 188 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 189 return 0; 190 } 191 return 1; 192 } 193 194 static int 195 ata_acard_850_setmode(device_t dev, int target, int mode) 196 { 197 device_t parent = device_get_parent(dev); 198 struct ata_pci_controller *ctlr = device_get_softc(parent); 199 struct ata_channel *ch = device_get_softc(dev); 200 int devno = (ch->unit << 1) + target; 201 202 mode = min(mode, ctlr->chip->max_dma); 203 /* XXX SOS missing WDMA0+1 + PIO modes */ 204 if (mode >= ATA_WDMA2) { 205 u_int8_t reg54 = pci_read_config(parent, 0x54, 1); 206 207 reg54 &= ~(0x03 << (devno << 1)); 208 if (mode >= ATA_UDMA0) 209 reg54 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 1)); 210 pci_write_config(parent, 0x54, reg54, 1); 211 pci_write_config(parent, 0x4a, 0xa6, 1); 212 pci_write_config(parent, 0x40 + (devno << 1), 0x0301, 2); 213 } 214 /* we could set PIO mode timings, but we assume the BIOS did that */ 215 return (mode); 216 } 217 218 static int 219 ata_acard_86X_setmode(device_t dev, int target, int mode) 220 { 221 device_t parent = device_get_parent(dev); 222 struct ata_pci_controller *ctlr = device_get_softc(parent); 223 struct ata_channel *ch = device_get_softc(dev); 224 int devno = (ch->unit << 1) + target; 225 226 mode = min(mode, ctlr->chip->max_dma); 227 /* XXX SOS missing WDMA0+1 + PIO modes */ 228 if (mode >= ATA_WDMA2) { 229 u_int16_t reg44 = pci_read_config(parent, 0x44, 2); 230 231 reg44 &= ~(0x000f << (devno << 2)); 232 if (mode >= ATA_UDMA0) 233 reg44 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 2)); 234 pci_write_config(parent, 0x44, reg44, 2); 235 pci_write_config(parent, 0x4a, 0xa6, 1); 236 pci_write_config(parent, 0x40 + devno, 0x31, 1); 237 } 238 /* we could set PIO mode timings, but we assume the BIOS did that */ 239 return (mode); 240 } 241 242 #ifndef ATA_CAM 243 static void 244 ata_serialize_init(struct ata_serialize *serial) 245 { 246 247 mtx_init(&serial->locked_mtx, "ATA serialize lock", NULL, MTX_DEF); 248 serial->locked_ch = -1; 249 serial->restart_ch = -1; 250 } 251 252 static int 253 ata_serialize(device_t dev, int flags) 254 { 255 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 256 struct ata_channel *ch = device_get_softc(dev); 257 struct ata_serialize *serial; 258 int res; 259 260 serial = ctlr->chipset_data; 261 262 mtx_lock(&serial->locked_mtx); 263 switch (flags) { 264 case ATA_LF_LOCK: 265 if (serial->locked_ch == -1) 266 serial->locked_ch = ch->unit; 267 if (serial->locked_ch != ch->unit) 268 serial->restart_ch = ch->unit; 269 break; 270 271 case ATA_LF_UNLOCK: 272 if (serial->locked_ch == ch->unit) { 273 serial->locked_ch = -1; 274 if (serial->restart_ch != -1) { 275 if ((ch = ctlr->interrupt[serial->restart_ch].argument)) { 276 serial->restart_ch = -1; 277 mtx_unlock(&serial->locked_mtx); 278 ata_start(dev); 279 return -1; 280 } 281 } 282 } 283 break; 284 285 case ATA_LF_WHICH: 286 break; 287 } 288 res = serial->locked_ch; 289 mtx_unlock(&serial->locked_mtx); 290 return res; 291 } 292 #endif 293 294 ATA_DECLARE_DRIVER(ata_acard); 295