/*- * Copyright (c) 1998 - 2005 Søren Schmidt * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer, * without modification, immediately at the beginning of the file. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_ata.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef __alpha__ #include #endif #include #include #include /* device structure */ static d_ioctl_t ata_ioctl; static struct cdevsw ata_cdevsw = { .d_version = D_VERSION, .d_flags = D_NEEDGIANT, /* we need this as newbus isn't mpsafe */ .d_ioctl = ata_ioctl, .d_name = "ata", }; /* prototypes */ static void ata_interrupt(void *); static void ata_boot_attach(void); static device_t ata_add_child(device_t, struct ata_device *, int); static void bswap(int8_t *, int); static void btrim(int8_t *, int); static void bpack(int8_t *, int8_t *, int); /* global vars */ MALLOC_DEFINE(M_ATA, "ATA generic", "ATA driver generic layer"); int (*ata_ioctl_func)(struct ata_cmd *iocmd) = NULL; devclass_t ata_devclass; uma_zone_t ata_request_zone; uma_zone_t ata_composite_zone; int ata_wc = 1; /* local vars */ static struct intr_config_hook *ata_delayed_attach = NULL; static int ata_dma = 1; static int atapi_dma = 1; /* sysctl vars */ SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters"); TUNABLE_INT("hw.ata.ata_dma", &ata_dma); SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0, "ATA disk DMA mode control"); TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma); SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0, "ATAPI device DMA mode control"); TUNABLE_INT("hw.ata.wc", &ata_wc); SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0, "ATA disk write caching"); /* * newbus device interface related functions */ int ata_probe(device_t dev) { return 0; } int ata_attach(device_t dev) { struct ata_channel *ch = device_get_softc(dev); int error, rid; /* check that we have a virgin channel to attach */ if (ch->r_irq) return EEXIST; /* initialize the softc basics */ ch->dev = dev; ch->state = ATA_IDLE; bzero(&ch->state_mtx, sizeof(struct mtx)); mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF); bzero(&ch->queue_mtx, sizeof(struct mtx)); mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF); TAILQ_INIT(&ch->ata_queue); /* reset the controller HW, the channel and device(s) */ while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit) tsleep(&error, PRIBIO, "ataatch", 1); ATA_RESET(dev); ATA_LOCKING(dev, ATA_LF_UNLOCK); /* setup interrupt delivery */ rid = ATA_IRQ_RID; ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE); if (!ch->r_irq) { device_printf(dev, "unable to allocate interrupt\n"); return ENXIO; } if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, ata_interrupt, ch, &ch->ih))) { device_printf(dev, "unable to setup interrupt\n"); return error; } /* probe and attach devices on this channel unless we are in early boot */ if (!ata_delayed_attach) ata_identify(dev); return 0; } int ata_detach(device_t dev) { struct ata_channel *ch = device_get_softc(dev); device_t *children; int nchildren, i; /* check that we have a vaild channel to detach */ if (!ch->r_irq) return ENXIO; /* detach & delete all children */ if (!device_get_children(dev, &children, &nchildren)) { for (i = 0; i < nchildren; i++) if (children[i]) device_delete_child(dev, children[i]); free(children, M_TEMP); } /* release resources */ bus_teardown_intr(dev, ch->r_irq, ch->ih); bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); ch->r_irq = NULL; mtx_destroy(&ch->state_mtx); mtx_destroy(&ch->queue_mtx); return 0; } int ata_reinit(device_t dev) { struct ata_channel *ch = device_get_softc(dev); device_t *children; int nchildren, i; /* check that we have a vaild channel to reinit */ if (!ch || !ch->r_irq) return ENXIO; if (bootverbose) device_printf(dev, "reiniting channel ..\n"); /* poll for locking the channel */ while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit) tsleep(&dev, PRIBIO, "atarini", 1); /* unconditionally grap the channel lock */ mtx_lock(&ch->state_mtx); ch->state = ATA_STALL_QUEUE; mtx_unlock(&ch->state_mtx); /* reset the controller HW, the channel and device(s) */ ATA_RESET(dev); /* reinit the children and delete any that fails */ if (!device_get_children(dev, &children, &nchildren)) { mtx_lock(&Giant); /* newbus suckage it needs Giant */ for (i = 0; i < nchildren; i++) { if (children[i] && device_is_attached(children[i])) if (ATA_REINIT(children[i])) { /* * if we have a running request and its device matches * this child we need to inform the request that the * device is gone and remove it from ch->running */ if (ch->running && ch->running->dev == children[i]) { device_printf(ch->running->dev, "FAILURE - device detached\n"); ch->running->dev = NULL; ch->running = NULL; } device_delete_child(dev, children[i]); } } free(children, M_TEMP); mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */ } /* catch request in ch->running if we havn't already */ ata_catch_inflight(dev); /* we're done release the channel for new work */ mtx_lock(&ch->state_mtx); ch->state = ATA_IDLE; mtx_unlock(&ch->state_mtx); ATA_LOCKING(dev, ATA_LF_UNLOCK); if (bootverbose) device_printf(dev, "reinit done ..\n"); /* kick off requests on the queue */ ata_start(dev); return 0; } int ata_suspend(device_t dev) { struct ata_channel *ch; /* check for valid device */ if (!dev || !(ch = device_get_softc(dev))) return ENXIO; /* wait for the channel to be IDLE before entering suspend mode */ while (1) { mtx_lock(&ch->state_mtx); if (ch->state == ATA_IDLE) { ch->state = ATA_ACTIVE; mtx_unlock(&ch->state_mtx); break; } mtx_unlock(&ch->state_mtx); tsleep(ch, PRIBIO, "atasusp", hz/10); } ATA_LOCKING(dev, ATA_LF_UNLOCK); return 0; } int ata_resume(device_t dev) { struct ata_channel *ch; int error; /* check for valid device */ if (!dev || !(ch = device_get_softc(dev))) return ENXIO; /* reinit the devices, we dont know what mode/state they are in */ error = ata_reinit(dev); /* kick off requests on the queue */ ata_start(dev); return error; } static void ata_interrupt(void *data) { struct ata_channel *ch = (struct ata_channel *)data; struct ata_request *request; mtx_lock(&ch->state_mtx); do { /* do we have a running request */ if (ch->state & ATA_TIMEOUT || !(request = ch->running)) break; ATA_DEBUG_RQ(request, "interrupt"); /* ignore interrupt if device is busy */ if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { DELAY(100); if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) break; } /* check for the right state */ if (ch->state != ATA_ACTIVE && ch->state != ATA_STALL_QUEUE) { device_printf(request->dev, "interrupt state=%d unexpected\n", ch->state); break; } /* * we have the HW locks, so end the tranaction for this request * if it finishes immediately otherwise wait for next interrupt */ if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) { ch->running = NULL; if (ch->state == ATA_ACTIVE) ch->state = ATA_IDLE; mtx_unlock(&ch->state_mtx); ATA_LOCKING(ch->dev, ATA_LF_UNLOCK); ata_finish(request); return; } } while (0); mtx_unlock(&ch->state_mtx); } /* * device related interfaces */ static int ata_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *td) { struct ata_cmd *iocmd = (struct ata_cmd *)addr; device_t *children, device = NULL; struct ata_request *request; caddr_t buf; int nchildren, i; int error = ENOTTY; if (cmd != IOCATA) return ENOTSUP; if (iocmd->cmd == ATAGMAXCHANNEL) { iocmd->u.maxchan = devclass_get_maxunit(ata_devclass); return 0; } if (iocmd->channel < 0 || iocmd->channel >= devclass_get_maxunit(ata_devclass)) { return ENXIO; } if (!(device = devclass_get_device(ata_devclass, iocmd->channel))) return ENXIO; switch (iocmd->cmd) { case ATAGPARM: if (!device_get_children(device, &children, &nchildren)) { struct ata_channel *ch; if (!(ch = device_get_softc(device))) return ENXIO; iocmd->u.param.type[0] = ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER); iocmd->u.param.type[1] = ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE); for (i = 0; i < nchildren; i++) { if (children[i] && device_is_attached(children[i])) { struct ata_device *atadev = device_get_softc(children[i]); if (atadev->unit == ATA_MASTER) { strcpy(iocmd->u.param.name[0], device_get_nameunit(children[i])); bcopy(&atadev->param, &iocmd->u.param.params[0], sizeof(struct ata_params)); } if (atadev->unit == ATA_SLAVE) { strcpy(iocmd->u.param.name[1], device_get_nameunit(children[i])); bcopy(&atadev->param, &iocmd->u.param.params[1], sizeof(struct ata_params)); } } } free(children, M_TEMP); error = 0; } else error = ENXIO; break; case ATAGMODE: if (!device_get_children(device, &children, &nchildren)) { for (i = 0; i < nchildren; i++) { if (children[i] && device_is_attached(children[i])) { struct ata_device *atadev = device_get_softc(children[i]); atadev = device_get_softc(children[i]); if (atadev->unit == ATA_MASTER) iocmd->u.mode.mode[0] = atadev->mode; if (atadev->unit == ATA_SLAVE) iocmd->u.mode.mode[1] = atadev->mode; } free(children, M_TEMP); } error = 0; } else error = ENXIO; break; case ATASMODE: if (!device_get_children(device, &children, &nchildren)) { for (i = 0; i < nchildren; i++) { if (children[i] && device_is_attached(children[i])) { struct ata_device *atadev = device_get_softc(children[i]); if (atadev->unit == ATA_MASTER) { atadev->mode = iocmd->u.mode.mode[0]; ATA_SETMODE(device, children[i]); iocmd->u.mode.mode[0] = atadev->mode; } if (atadev->unit == ATA_SLAVE) { atadev->mode = iocmd->u.mode.mode[1]; ATA_SETMODE(device, children[i]); iocmd->u.mode.mode[1] = atadev->mode; } } } free(children, M_TEMP); error = 0; } else error = ENXIO; break; case ATAREQUEST: if (!device_get_children(device, &children, &nchildren)) { for (i = 0; i < nchildren; i++) { if (children[i] && device_is_attached(children[i])) { struct ata_device *atadev = device_get_softc(children[i]); if (ATA_DEV(atadev->unit) == iocmd->device) { if (!(buf = malloc(iocmd->u.request.count, M_ATA, M_NOWAIT))) { error = ENOMEM; break; } if (!(request = ata_alloc_request())) { error = ENOMEM; free(buf, M_ATA); break; } if (iocmd->u.request.flags & ATA_CMD_WRITE) { error = copyin(iocmd->u.request.data, buf, iocmd->u.request.count); if (error) { free(buf, M_ATA); ata_free_request(request); break; } } request->dev = atadev->dev; if (iocmd->u.request.flags & ATA_CMD_ATAPI) { request->flags = ATA_R_ATAPI; bcopy(iocmd->u.request.u.atapi.ccb, request->u.atapi.ccb, 16); } else { request->u.ata.command = iocmd->u.request.u.ata.command; request->u.ata.feature = iocmd->u.request.u.ata.feature; request->u.ata.lba = iocmd->u.request.u.ata.lba; request->u.ata.count = iocmd->u.request.u.ata.count; } request->timeout = iocmd->u.request.timeout; request->data = buf; request->bytecount = iocmd->u.request.count; request->transfersize = request->bytecount; if (iocmd->u.request.flags & ATA_CMD_CONTROL) request->flags |= ATA_R_CONTROL; if (iocmd->u.request.flags & ATA_CMD_READ) request->flags |= ATA_R_READ; if (iocmd->u.request.flags & ATA_CMD_WRITE) request->flags |= ATA_R_WRITE; ata_queue_request(request); if (!(request->flags & ATA_R_ATAPI)) { iocmd->u.request.u.ata.command = request->u.ata.command; iocmd->u.request.u.ata.feature = request->u.ata.feature; iocmd->u.request.u.ata.lba = request->u.ata.lba; iocmd->u.request.u.ata.count = request->u.ata.count; } iocmd->u.request.error = request->result; if (iocmd->u.request.flags & ATA_CMD_READ) error = copyout(buf, iocmd->u.request.data, iocmd->u.request.count); else error = 0; free(buf, M_ATA); ata_free_request(request); break; } } } free(children, M_TEMP); } else error = ENXIO; break; case ATAREINIT: error = ata_reinit(device); ata_start(device); break; case ATAATTACH: /* SOS should enable channel HW on controller XXX */ error = ata_attach(device); break; case ATADETACH: error = ata_detach(device); /* SOS should disable channel HW on controller XXX */ break; default: if (ata_ioctl_func) error = ata_ioctl_func(iocmd); } return error; } static void ata_boot_attach(void) { struct ata_channel *ch; int ctlr; /* release the hook that got us here, only needed during boot */ if (ata_delayed_attach) { config_intrhook_disestablish(ata_delayed_attach); free(ata_delayed_attach, M_TEMP); ata_delayed_attach = NULL; } /* kick of probe and attach on all channels */ for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) { if ((ch = devclass_get_softc(ata_devclass, ctlr))) { ata_identify(ch->dev); } } } /* * misc support functions */ static device_t ata_add_child(device_t parent, struct ata_device *atadev, int unit) { device_t child; if ((child = device_add_child(parent, NULL, unit))) { char buffer[64]; device_set_softc(child, atadev); sprintf(buffer, "%.40s/%.8s", atadev->param.model, atadev->param.revision); device_set_desc_copy(child, buffer); device_quiet(child); atadev->dev = child; atadev->max_iosize = DEV_BSIZE; atadev->mode = ATA_PIO_MAX; } return child; } static int ata_getparam(device_t parent, struct ata_device *atadev) { struct ata_channel *ch = device_get_softc(parent); struct ata_request *request; u_int8_t command = 0; int error = ENOMEM, retries = 2; if (ch->devices & (atadev->unit == ATA_MASTER ? ATA_ATA_MASTER : ATA_ATA_SLAVE)) command = ATA_ATA_IDENTIFY; if (ch->devices & (atadev->unit == ATA_MASTER ? ATA_ATAPI_MASTER : ATA_ATAPI_SLAVE)) command = ATA_ATAPI_IDENTIFY; if (!command) return ENXIO; while (retries-- > 0 && error) { if (!(request = ata_alloc_request())) break; request->dev = atadev->dev; request->timeout = 1; request->retries = 0; request->u.ata.command = command; request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET); request->data = (void *)&atadev->param; request->bytecount = sizeof(struct ata_params); request->donecount = 0; request->transfersize = DEV_BSIZE; ata_queue_request(request); error = request->result; ata_free_request(request); } if (!error && (isprint(atadev->param.model[0]) || isprint(atadev->param.model[1]))) { struct ata_params *atacap = &atadev->param; #if BYTE_ORDER == BIG_ENDIAN int16_t *ptr; for (ptr = (int16_t *)atacap; ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) { *ptr = bswap16(*ptr); } #endif if (!(!strncmp(atacap->model, "FX", 2) || !strncmp(atacap->model, "NEC", 3) || !strncmp(atacap->model, "Pioneer", 7) || !strncmp(atacap->model, "SHARP", 5))) { bswap(atacap->model, sizeof(atacap->model)); bswap(atacap->revision, sizeof(atacap->revision)); bswap(atacap->serial, sizeof(atacap->serial)); } btrim(atacap->model, sizeof(atacap->model)); bpack(atacap->model, atacap->model, sizeof(atacap->model)); btrim(atacap->revision, sizeof(atacap->revision)); bpack(atacap->revision, atacap->revision, sizeof(atacap->revision)); btrim(atacap->serial, sizeof(atacap->serial)); bpack(atacap->serial, atacap->serial, sizeof(atacap->serial)); if (bootverbose) printf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n", ch->unit, atadev->unit == ATA_MASTER ? "master":"slave", ata_mode2str(ata_pmode(atacap)), ata_mode2str(ata_wmode(atacap)), ata_mode2str(ata_umode(atacap)), (atacap->hwres & ATA_CABLE_ID) ? "80":"40"); if (atadev->param.config & ATA_PROTO_ATAPI) { if (atapi_dma && ch->dma && (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR && ata_umode(&atadev->param) >= ATA_UDMA2) atadev->mode = ATA_DMA_MAX; } else { if (ata_dma && ch->dma) atadev->mode = ATA_DMA_MAX; } } else { if (!error) error = ENXIO; } return error; } int ata_identify(device_t dev) { struct ata_channel *ch = device_get_softc(dev); struct ata_device *master = NULL, *slave = NULL; device_t master_child = NULL, slave_child = NULL; int master_unit = -1, slave_unit = -1; if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) { if (!(master = malloc(sizeof(struct ata_device), M_ATA, M_NOWAIT | M_ZERO))) { device_printf(dev, "out of memory\n"); return ENOMEM; } master->unit = ATA_MASTER; } if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) { if (!(slave = malloc(sizeof(struct ata_device), M_ATA, M_NOWAIT | M_ZERO))) { free(master, M_ATA); device_printf(dev, "out of memory\n"); return ENOMEM; } slave->unit = ATA_SLAVE; } #ifdef ATA_STATIC_ID if (ch->devices & ATA_ATA_MASTER) master_unit = (device_get_unit(dev) << 1); #endif if (master && !(master_child = ata_add_child(dev, master, master_unit))) { free(master, M_ATA); master = NULL; } #ifdef ATA_STATIC_ID if (ch->devices & ATA_ATA_SLAVE) slave_unit = (device_get_unit(dev) << 1) + 1; #endif if (slave && !(slave_child = ata_add_child(dev, slave, slave_unit))) { free(slave, M_ATA); slave = NULL; } if (slave && ata_getparam(dev, slave)) { device_delete_child(dev, slave_child); free(slave, M_ATA); } if (master && ata_getparam(dev, master)) { device_delete_child(dev, master_child); free(master, M_ATA); } bus_generic_probe(dev); bus_generic_attach(dev); return 0; } void ata_default_registers(device_t dev) { struct ata_channel *ch = device_get_softc(dev); /* fill in the defaults from whats setup already */ ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res; ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset; ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res; ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset; ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res; ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset; ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res; ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset; } void ata_udelay(int interval) { /* for now just use DELAY, the timer/sleep subsytems are not there yet */ if (1 || interval < (1000000/hz) || ata_delayed_attach) DELAY(interval); else tsleep(&interval, PRIBIO, "ataslp", interval/(1000000/hz)); } char * ata_mode2str(int mode) { switch (mode) { case ATA_PIO0: return "PIO0"; case ATA_PIO1: return "PIO1"; case ATA_PIO2: return "PIO2"; case ATA_PIO3: return "PIO3"; case ATA_PIO4: return "PIO4"; case ATA_WDMA0: return "WDMA0"; case ATA_WDMA1: return "WDMA1"; case ATA_WDMA2: return "WDMA2"; case ATA_UDMA0: return "UDMA16"; case ATA_UDMA1: return "UDMA25"; case ATA_UDMA2: return "UDMA33"; case ATA_UDMA3: return "UDMA40"; case ATA_UDMA4: return "UDMA66"; case ATA_UDMA5: return "UDMA100"; case ATA_UDMA6: return "UDMA133"; case ATA_SA150: return "SATA150"; default: if (mode & ATA_DMA_MASK) return "BIOSDMA"; else return "BIOSPIO"; } } int ata_pmode(struct ata_params *ap) { if (ap->atavalid & ATA_FLAG_64_70) { if (ap->apiomodes & 0x02) return ATA_PIO4; if (ap->apiomodes & 0x01) return ATA_PIO3; } if (ap->mwdmamodes & 0x04) return ATA_PIO4; if (ap->mwdmamodes & 0x02) return ATA_PIO3; if (ap->mwdmamodes & 0x01) return ATA_PIO2; if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200) return ATA_PIO2; if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100) return ATA_PIO1; if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000) return ATA_PIO0; return ATA_PIO0; } int ata_wmode(struct ata_params *ap) { if (ap->mwdmamodes & 0x04) return ATA_WDMA2; if (ap->mwdmamodes & 0x02) return ATA_WDMA1; if (ap->mwdmamodes & 0x01) return ATA_WDMA0; return -1; } int ata_umode(struct ata_params *ap) { if (ap->atavalid & ATA_FLAG_88) { if (ap->udmamodes & 0x40) return ATA_UDMA6; if (ap->udmamodes & 0x20) return ATA_UDMA5; if (ap->udmamodes & 0x10) return ATA_UDMA4; if (ap->udmamodes & 0x08) return ATA_UDMA3; if (ap->udmamodes & 0x04) return ATA_UDMA2; if (ap->udmamodes & 0x02) return ATA_UDMA1; if (ap->udmamodes & 0x01) return ATA_UDMA0; } return -1; } int ata_limit_mode(device_t dev, int mode, int maxmode) { struct ata_device *atadev = device_get_softc(dev); if (maxmode && mode > maxmode) mode = maxmode; if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0) return min(mode, ata_umode(&atadev->param)); if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0) return min(mode, ata_wmode(&atadev->param)); if (mode > ata_pmode(&atadev->param)) return min(mode, ata_pmode(&atadev->param)); return mode; } static void bswap(int8_t *buf, int len) { u_int16_t *ptr = (u_int16_t*)(buf + len); while (--ptr >= (u_int16_t*)buf) *ptr = ntohs(*ptr); } static void btrim(int8_t *buf, int len) { int8_t *ptr; for (ptr = buf; ptr < buf+len; ++ptr) if (!*ptr || *ptr == '_') *ptr = ' '; for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr) *ptr = 0; } static void bpack(int8_t *src, int8_t *dst, int len) { int i, j, blank; for (i = j = blank = 0 ; i < len; i++) { if (blank && src[i] == ' ') continue; if (blank && src[i] != ' ') { dst[j++] = src[i]; blank = 0; continue; } if (src[i] == ' ') { blank = 1; if (i == 0) continue; } dst[j++] = src[i]; } if (j < len) dst[j] = 0x00; } /* * module handeling */ static int ata_module_event_handler(module_t mod, int what, void *arg) { static struct cdev *atacdev; switch (what) { case MOD_LOAD: /* register controlling device */ atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata"); if (cold) { /* register boot attach to be run when interrupts are enabled */ if (!(ata_delayed_attach = (struct intr_config_hook *) malloc(sizeof(struct intr_config_hook), M_TEMP, M_NOWAIT | M_ZERO))) { printf("ata: malloc of delayed attach hook failed\n"); return EIO; } ata_delayed_attach->ich_func = (void*)ata_boot_attach; if (config_intrhook_establish(ata_delayed_attach) != 0) { printf("ata: config_intrhook_establish failed\n"); free(ata_delayed_attach, M_TEMP); } } return 0; case MOD_UNLOAD: /* deregister controlling device */ destroy_dev(atacdev); return 0; default: return EOPNOTSUPP; } } static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL }; DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND); MODULE_VERSION(ata, 1); static void ata_init(void) { ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request), NULL, NULL, NULL, NULL, 0, 0); ata_composite_zone = uma_zcreate("ata_composite", sizeof(struct ata_composite), NULL, NULL, NULL, NULL, 0, 0); } SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL); static void ata_uninit(void) { uma_zdestroy(ata_composite_zone); uma_zdestroy(ata_request_zone); } SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);