1 /*- 2 * Copyright (c) 1998 - 2008 S�ren 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 struct ata_serialize { 55 struct mtx locked_mtx; 56 int locked_ch; 57 int restart_ch; 58 }; 59 60 /* local prototypes */ 61 static int ata_acard_chipinit(device_t dev); 62 static int ata_acard_ch_attach(device_t dev); 63 static int ata_acard_status(device_t dev); 64 static int ata_acard_850_setmode(device_t dev, int target, int mode); 65 static int ata_acard_86X_setmode(device_t dev, int target, int mode); 66 static int ata_serialize(device_t dev, int flags); 67 static void ata_serialize_init(struct ata_serialize *serial); 68 69 /* misc defines */ 70 #define ATP_OLD 1 71 72 73 /* 74 * Acard chipset support functions 75 */ 76 static int 77 ata_acard_probe(device_t dev) 78 { 79 struct ata_pci_controller *ctlr = device_get_softc(dev); 80 static struct ata_chip_id ids[] = 81 {{ ATA_ATP850R, 0, ATP_OLD, 0x00, ATA_UDMA2, "ATP850" }, 82 { ATA_ATP860A, 0, 0, 0x00, ATA_UDMA4, "ATP860A" }, 83 { ATA_ATP860R, 0, 0, 0x00, ATA_UDMA4, "ATP860R" }, 84 { ATA_ATP865A, 0, 0, 0x00, ATA_UDMA6, "ATP865A" }, 85 { ATA_ATP865R, 0, 0, 0x00, ATA_UDMA6, "ATP865R" }, 86 { 0, 0, 0, 0, 0, 0}}; 87 88 if (pci_get_vendor(dev) != ATA_ACARD_ID) 89 return ENXIO; 90 91 if (!(ctlr->chip = ata_match_chip(dev, ids))) 92 return ENXIO; 93 94 ata_set_desc(dev); 95 ctlr->chipinit = ata_acard_chipinit; 96 return (BUS_PROBE_DEFAULT); 97 } 98 99 static int 100 ata_acard_chipinit(device_t dev) 101 { 102 struct ata_pci_controller *ctlr = device_get_softc(dev); 103 struct ata_serialize *serial; 104 105 if (ata_setup_interrupt(dev, ata_generic_intr)) 106 return ENXIO; 107 108 ctlr->ch_attach = ata_acard_ch_attach; 109 ctlr->ch_detach = ata_pci_ch_detach; 110 if (ctlr->chip->cfg1 == ATP_OLD) { 111 ctlr->setmode = ata_acard_850_setmode; 112 ctlr->locking = ata_serialize; 113 serial = malloc(sizeof(struct ata_serialize), 114 M_TEMP, M_WAITOK | M_ZERO); 115 ata_serialize_init(serial); 116 ctlr->chipset_data = serial; 117 } 118 else 119 ctlr->setmode = ata_acard_86X_setmode; 120 return 0; 121 } 122 123 static int 124 ata_acard_ch_attach(device_t dev) 125 { 126 struct ata_channel *ch = device_get_softc(dev); 127 128 /* setup the usual register normal pci style */ 129 if (ata_pci_ch_attach(dev)) 130 return ENXIO; 131 132 ch->hw.status = ata_acard_status; 133 ch->flags |= ATA_NO_ATAPI_DMA; 134 return 0; 135 } 136 137 static int 138 ata_acard_status(device_t dev) 139 { 140 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 141 struct ata_channel *ch = device_get_softc(dev); 142 143 if (ctlr->chip->cfg1 == ATP_OLD && 144 ATA_LOCKING(dev, ATA_LF_WHICH) != ch->unit) 145 return 0; 146 if (ch->dma.flags & ATA_DMA_ACTIVE) { 147 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 148 149 if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != 150 ATA_BMSTAT_INTERRUPT) 151 return 0; 152 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 153 DELAY(1); 154 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 155 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 156 DELAY(1); 157 } 158 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 159 DELAY(100); 160 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 161 return 0; 162 } 163 return 1; 164 } 165 166 static int 167 ata_acard_850_setmode(device_t dev, int target, int mode) 168 { 169 device_t parent = device_get_parent(dev); 170 struct ata_pci_controller *ctlr = device_get_softc(parent); 171 struct ata_channel *ch = device_get_softc(dev); 172 int devno = (ch->unit << 1) + target; 173 174 mode = min(mode, ctlr->chip->max_dma); 175 /* XXX SOS missing WDMA0+1 + PIO modes */ 176 if (mode >= ATA_WDMA2) { 177 u_int8_t reg54 = pci_read_config(parent, 0x54, 1); 178 179 reg54 &= ~(0x03 << (devno << 1)); 180 if (mode >= ATA_UDMA0) 181 reg54 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 1)); 182 pci_write_config(parent, 0x54, reg54, 1); 183 pci_write_config(parent, 0x4a, 0xa6, 1); 184 pci_write_config(parent, 0x40 + (devno << 1), 0x0301, 2); 185 } 186 /* we could set PIO mode timings, but we assume the BIOS did that */ 187 return (mode); 188 } 189 190 static int 191 ata_acard_86X_setmode(device_t dev, int target, int mode) 192 { 193 device_t parent = device_get_parent(dev); 194 struct ata_pci_controller *ctlr = device_get_softc(parent); 195 struct ata_channel *ch = device_get_softc(dev); 196 int devno = (ch->unit << 1) + target; 197 198 mode = min(mode, ctlr->chip->max_dma); 199 /* XXX SOS missing WDMA0+1 + PIO modes */ 200 if (mode >= ATA_WDMA2) { 201 u_int16_t reg44 = pci_read_config(parent, 0x44, 2); 202 203 reg44 &= ~(0x000f << (devno << 2)); 204 if (mode >= ATA_UDMA0) 205 reg44 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 2)); 206 pci_write_config(parent, 0x44, reg44, 2); 207 pci_write_config(parent, 0x4a, 0xa6, 1); 208 pci_write_config(parent, 0x40 + devno, 0x31, 1); 209 } 210 /* we could set PIO mode timings, but we assume the BIOS did that */ 211 return (mode); 212 } 213 214 static void 215 ata_serialize_init(struct ata_serialize *serial) 216 { 217 218 mtx_init(&serial->locked_mtx, "ATA serialize lock", NULL, MTX_DEF); 219 serial->locked_ch = -1; 220 serial->restart_ch = -1; 221 } 222 223 static int 224 ata_serialize(device_t dev, int flags) 225 { 226 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 227 struct ata_channel *ch = device_get_softc(dev); 228 struct ata_serialize *serial; 229 int res; 230 231 serial = ctlr->chipset_data; 232 233 mtx_lock(&serial->locked_mtx); 234 switch (flags) { 235 case ATA_LF_LOCK: 236 if (serial->locked_ch == -1) 237 serial->locked_ch = ch->unit; 238 if (serial->locked_ch != ch->unit) 239 serial->restart_ch = ch->unit; 240 break; 241 242 case ATA_LF_UNLOCK: 243 if (serial->locked_ch == ch->unit) { 244 serial->locked_ch = -1; 245 if (serial->restart_ch != -1) { 246 if ((ch = ctlr->interrupt[serial->restart_ch].argument)) { 247 serial->restart_ch = -1; 248 mtx_unlock(&serial->locked_mtx); 249 ata_start(dev); 250 return -1; 251 } 252 } 253 } 254 break; 255 256 case ATA_LF_WHICH: 257 break; 258 } 259 res = serial->locked_ch; 260 mtx_unlock(&serial->locked_mtx); 261 return res; 262 } 263 264 ATA_DECLARE_DRIVER(ata_acard); 265