/*- * Copyright (c) 1998,1999 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. * * $FreeBSD$ */ #include "apm.h" #include "atapicd.h" #include "atapist.h" #include "atapifd.h" #include "opt_global.h" #include "opt_ata.h" #include #include #include #include #include #include #if NAPM > 0 #include #endif #include #include /* prototypes */ static void atapi_attach(void *); static int32_t atapi_getparam(struct atapi_softc *); static void atapi_read(struct atapi_request *, int32_t); static void atapi_write(struct atapi_request *, int32_t); static void atapi_timeout(struct atapi_request *request); static int8_t *atapi_type(int32_t); static int8_t *atapi_cmd2str(u_int8_t); static int8_t *atapi_skey2str(u_int8_t); static int32_t atapi_wait(struct atapi_softc *, u_int8_t); static void atapi_init(void); /* extern references */ int32_t acdattach(struct atapi_softc *); int32_t afdattach(struct atapi_softc *); int32_t astattach(struct atapi_softc *); /* internal vars */ static struct intr_config_hook *atapi_attach_hook; MALLOC_DEFINE(M_ATAPI, "ATAPI generic", "ATAPI driver generic layer"); /* defines */ #define ATAPI_MAX_RETRIES 5 static __inline int apiomode(struct atapi_params *ap) { if (ap->atavalid & 2) { if (ap->apiomodes & 2) return 4; if (ap->apiomodes & 1) return 3; } return -1; } static __inline int wdmamode(struct atapi_params *ap) { if (ap->atavalid & 2) { if (ap->wdmamodes & 4) return 2; if (ap->wdmamodes & 2) return 1; if (ap->wdmamodes & 1) return 0; } return -1; } static __inline int udmamode(struct atapi_params *ap) { if (ap->atavalid & 4) { if (ap->udmamodes & 4) return 2; if (ap->udmamodes & 2) return 1; if (ap->udmamodes & 1) return 0; } return -1; } static void atapi_attach(void *notused) { struct atapi_softc *atp; int32_t ctlr, dev; int8_t model_buf[40+1]; int8_t revision_buf[8+1]; /* now, run through atadevices and look for ATAPI devices */ for (ctlr=0; ctlrdevices & (dev ? ATA_ATAPI_SLAVE : ATA_ATAPI_MASTER)) { if (!(atp = malloc(sizeof(struct atapi_softc), M_ATAPI, M_NOWAIT))) { printf("atapi: failed to allocate driver storage\n"); continue; } bzero(atp, sizeof(struct atapi_softc)); atp->controller = atadevices[ctlr]; atp->unit = (dev == 0) ? ATA_MASTER : ATA_SLAVE; if (atapi_getparam(atp)) { free(atp, M_ATAPI); continue; } if (bootverbose) printf("ata%d-%s: piomode=%d dmamode=%d " "udmamode=%d dmaflag=%d\n", ctlr, (dev == ATA_MASTER) ? "master" : "slave", apiomode(atp->atapi_parm), wdmamode(atp->atapi_parm), udmamode(atp->atapi_parm), atp->atapi_parm->dmaflag); #ifdef ATA_ENABLE_ATAPI_DMA if (!(atp->atapi_parm->drqtype == ATAPI_DRQT_INTR) && !ata_dmainit(atp->controller, atp->unit, (apiomode(atp->atapi_parm) < 0) ? (atp->atapi_parm->dmaflag ? 4 : 0) : apiomode(atp->atapi_parm), (wdmamode(atp->atapi_parm) < 0) ? (atp->atapi_parm->dmaflag ? 2 : 0) : wdmamode(atp->atapi_parm), udmamode(atp->atapi_parm))) atp->flags |= ATAPI_F_DMA_ENABLED; #endif switch (atp->atapi_parm->device_type) { #if NATAPICD > 0 case ATAPI_TYPE_CDROM: if (acdattach(atp)) goto notfound; break; #endif #if NATAPIFD > 0 case ATAPI_TYPE_DIRECT: if (afdattach(atp)) goto notfound; break; #endif #if NATAPIST > 0 case ATAPI_TYPE_TAPE: if (astattach(atp)) goto notfound; break; #endif notfound: default: bpack(atp->atapi_parm->model, model_buf, sizeof(model_buf)); bpack(atp->atapi_parm->revision, revision_buf, sizeof(revision_buf)); printf("ata%d-%s: <%s/%s> %s device - NO DRIVER!\n", ctlr, (dev == ATA_MASTER) ? "master" : "slave", model_buf, revision_buf, atapi_type(atp->atapi_parm->device_type)); free(atp, M_ATAPI); atp = NULL; } /* store our softc */ atp->controller->dev_softc[(atp->unit==ATA_MASTER)?0:1] = atp; } } } config_intrhook_disestablish(atapi_attach_hook); } static int32_t atapi_getparam(struct atapi_softc *atp) { struct atapi_params *atapi_parm; int8_t buffer[DEV_BSIZE]; /* select drive */ outb(atp->controller->ioaddr + ATA_DRIVE, ATA_D_IBM | atp->unit); DELAY(1); ata_command(atp->controller, atp->unit, ATA_C_ATAPI_IDENTIFY, 0, 0, 0, 0, 0, ATA_WAIT_INTR); if (atapi_wait(atp, ATA_S_DRQ)) return -1; insw(atp->controller->ioaddr + ATA_DATA, buffer, sizeof(buffer)/sizeof(int16_t)); if (atapi_wait(atp, 0)) return -1; if (!(atapi_parm = malloc(sizeof(struct atapi_params), M_ATAPI, M_NOWAIT))) return -1; bcopy(buffer, atapi_parm, sizeof(struct atapi_params)); if (!((atapi_parm->model[0] == 'N' && atapi_parm->model[1] == 'E') || (atapi_parm->model[0] == 'F' && atapi_parm->model[1] == 'X'))) bswap(atapi_parm->model, sizeof(atapi_parm->model)); btrim(atapi_parm->model, sizeof(atapi_parm->model)); bswap(atapi_parm->revision, sizeof(atapi_parm->revision)); btrim(atapi_parm->revision, sizeof(atapi_parm->revision)); atp->atapi_parm = atapi_parm; return 0; } int32_t atapi_queue_cmd(struct atapi_softc *atp, int8_t *ccb, void *data, int32_t count, int32_t flags, int32_t timeout, atapi_callback_t callback, void *driver, struct buf *bp) { struct atapi_request *request; int32_t error, s; if (!(request = malloc(sizeof(struct atapi_request), M_ATAPI, M_NOWAIT))) return ENOMEM; bzero(request, sizeof(struct atapi_request)); request->device = atp; request->data = data; request->bytecount = count; request->flags = flags; request->timeout = timeout * hz; request->ccbsize = (atp->atapi_parm->cmdsize) ? 16 : 12; bcopy(ccb, request->ccb, request->ccbsize); if (callback) { request->callback = callback; request->bp = bp; request->driver = driver; } /* append onto controller queue and try to start controller */ s = splbio(); TAILQ_INSERT_TAIL(&atp->controller->atapi_queue, request, chain); if (atp->controller->active == ATA_IDLE) ata_start(atp->controller); /* if callback used, then just return, gets called from interrupt context */ if (callback) { splx(s); return 0; } /* wait for request to complete */ tsleep((caddr_t)request, PRIBIO, "atprq", 0); splx(s); #ifdef ATAPI_DEBUG printf("atapi: phew, got back from tsleep\n"); #endif error = request->error; free(request, M_ATAPI); return error; } void atapi_transfer(struct atapi_request *request) { struct atapi_softc *atp = request->device; int32_t timout; int8_t reason; #ifdef ATAPI_DEBUG printf("atapi: starting %s ", atapi_cmd2str(request->ccb[0])); atapi_dump("ccb = ", &request->ccb[0], sizeof(request->ccb)); #endif /* start timeout for this command */ request->timeout_handle = timeout((timeout_t *)atapi_timeout, request, request->timeout); if (request->ccb[0] != ATAPI_REQUEST_SENSE) atp->cmd = request->ccb[0]; /* flag if we can trust the DSC bit */ if (request->ccb[0] == ATAPI_READ || request->ccb[0] == ATAPI_READ_BIG || request->ccb[0] == ATAPI_WRITE || request->ccb[0] == ATAPI_WRITE_BIG) atp->flags |= ATAPI_F_DSC_USED; else atp->flags &= ~ATAPI_F_DSC_USED; /* if DMA enabled setup DMA hardware */ if ((atp->flags & ATAPI_F_DMA_ENABLED) && (request->ccb[0] == ATAPI_READ || request->ccb[0] == ATAPI_READ_BIG || ((request->ccb[0] == ATAPI_WRITE || request->ccb[0] == ATAPI_WRITE_BIG) && !(atp->controller->flags & ATA_ATAPI_DMA_RO))) && !ata_dmasetup(atp->controller, atp->unit, (void *)request->data, request->bytecount, request->flags & A_READ)) { atp->flags |= ATAPI_F_DMA_USED; } /* start ATAPI operation */ ata_command(atp->controller, atp->unit, ATA_C_PACKET_CMD, request->bytecount, 0, 0, 0, (atp->flags & ATAPI_F_DMA_USED) ? ATA_F_DMA : 0, ATA_IMMEDIATE); if (atp->flags & ATAPI_F_DMA_USED) ata_dmastart(atp->controller); /* command interrupt device ? just return */ if (atp->atapi_parm->drqtype == ATAPI_DRQT_INTR) return; /* ready to write ATAPI command */ timout = 5000; /* might be less for fast devices */ while (timout--) { reason = inb(atp->controller->ioaddr + ATA_IREASON); atp->controller->status = inb(atp->controller->ioaddr + ATA_STATUS); if (((reason & (ATA_I_CMD | ATA_I_IN)) | (atp->controller->status&(ATA_S_DRQ|ATA_S_BUSY)))==ATAPI_P_CMDOUT) break; DELAY(20); } if (timout <= 0) { request->result = inb(atp->controller->ioaddr + ATA_ERROR); printf("atapi_transfer: device hanging on packet cmd\n"); return; } /* this seems to be needed for some (slow) devices */ DELAY(10); /* send actual command */ outsw(atp->controller->ioaddr + ATA_DATA, request->ccb, request->ccbsize / sizeof(int16_t)); } int32_t atapi_interrupt(struct atapi_request *request) { struct atapi_softc *atp = request->device; int8_t **buffer = (int8_t **)&request->data; int32_t length, reason, dma_stat = 0; if (request->ccb[0] == ATAPI_REQUEST_SENSE) *buffer = (int8_t *)&request->sense; #ifdef ATAPI_DEBUG printf("atapi_interrupt: enter\n"); #endif reason = (inb(atp->controller->ioaddr+ATA_IREASON) & (ATA_I_CMD|ATA_I_IN)) | (atp->controller->status & ATA_S_DRQ); if (reason == ATAPI_P_CMDOUT) { if (!(atp->controller->status & ATA_S_DRQ)) { request->result = inb(atp->controller->ioaddr + ATA_ERROR); printf("atapi_interrupt: command interrupt, but no DRQ\n"); goto op_finished; } outsw(atp->controller->ioaddr + ATA_DATA, request->ccb, request->ccbsize / sizeof(int16_t)); return ATA_OP_CONTINUES; } if (atp->flags & ATAPI_F_DMA_USED) dma_stat = ata_dmadone(atp->controller); if (atapi_wait(atp, 0) < 0) { printf("atapi_interrupt: timeout waiting for status"); atp->flags &= ~ATAPI_F_DMA_USED; request->result = inb(atp->controller->ioaddr + ATA_ERROR) | ATAPI_SK_RESERVED; goto op_finished; } if (atp->flags & ATAPI_F_DMA_USED) { atp->flags &= ~ATAPI_F_DMA_USED; if ((atp->controller->status & (ATA_S_ERROR | ATA_S_DWF)) || dma_stat != ATA_BMSTAT_INTERRUPT) { request->result = inb(atp->controller->ioaddr + ATA_ERROR); } else { request->result = 0; request->bytecount = 0; } goto op_finished; } length = inb(atp->controller->ioaddr + ATA_CYL_LSB); length |= inb(atp->controller->ioaddr + ATA_CYL_MSB) << 8; #ifdef ATAPI_DEBUG printf("atapi_interrupt: length=%d reason=0x%02x\n", length, reason); #endif switch (reason) { case ATAPI_P_WRITE: if (request->flags & A_READ) { request->result = inb(atp->controller->ioaddr + ATA_ERROR); printf("ata%d-%s: %s trying to write on read buffer\n", atp->controller->lun, (atp->unit == ATA_MASTER) ? "master" : "slave", atapi_cmd2str(atp->cmd)); goto op_finished; } atapi_write(request, length); return ATA_OP_CONTINUES; case ATAPI_P_READ: if (!(request->flags & A_READ)) { request->result = inb(atp->controller->ioaddr + ATA_ERROR); printf("ata%d-%s: %s trying to read on write buffer\n", atp->controller->lun, (atp->unit == ATA_MASTER) ? "master" : "slave", atapi_cmd2str(atp->cmd)); goto op_finished; } atapi_read(request, length); return ATA_OP_CONTINUES; case ATAPI_P_DONEDRQ: printf("ata%d-%s: %s DONEDRQ\n", atp->controller->lun, (atp->unit == ATA_MASTER) ? "master" : "slave", atapi_cmd2str(atp->cmd)); if (request->flags & A_READ) atapi_read(request, length); else atapi_write(request, length); /* FALLTHROUGH */ case ATAPI_P_ABORT: case ATAPI_P_DONE: if (atp->controller->status & (ATA_S_ERROR | ATA_S_DWF)) request->result = inb(atp->controller->ioaddr + ATA_ERROR); else if (request->ccb[0] != ATAPI_REQUEST_SENSE) request->result = 0; #ifdef ATAPI_DEBUG if (request->bytecount > 0) { printf("atapi_interrupt: %s size problem, %d bytes residue\n", (request->flags & A_READ) ? "read" : "write", request->bytecount); } #endif goto op_finished; default: printf("atapi_interrupt: unknown transfer phase %d\n", reason); } op_finished: untimeout((timeout_t *)atapi_timeout, request, request->timeout_handle); /* check for error, if valid sense key, queue a request sense cmd */ if ((request->result & ATAPI_SK_MASK) && request->ccb[0] != ATAPI_REQUEST_SENSE) { bzero(request->ccb, request->ccbsize); request->ccb[0] = ATAPI_REQUEST_SENSE; request->ccb[4] = sizeof(struct atapi_reqsense); request->bytecount = sizeof(struct atapi_reqsense); request->flags = A_READ; TAILQ_INSERT_HEAD(&atp->controller->atapi_queue, request, chain); } else { request->error = 0; if (request->result) { switch ((request->result & ATAPI_SK_MASK)) { case ATAPI_SK_RESERVED: printf("atapi_error: %s - timeout error = %02x\n", atapi_cmd2str(atp->cmd), request->result & ATAPI_E_MASK); request->error = EIO; break; case ATAPI_SK_NO_SENSE: request->error = 0; break; case ATAPI_SK_RECOVERED_ERROR: printf("atapi_error: %s - recovered error\n", atapi_cmd2str(atp->cmd)); request->error = 0; break; case ATAPI_SK_NOT_READY: request->error = EBUSY; break; case ATAPI_SK_UNIT_ATTENTION: atp->flags |= ATAPI_F_MEDIA_CHANGED; request->error = EIO; break; default: printf("atapi: %s - %s asc=%02x ascq=%02x error=%02x\n", atapi_cmd2str(atp->cmd), atapi_skey2str(request->sense.sense_key), request->sense.asc, request->sense.ascq, request->result & ATAPI_E_MASK); request->error = EIO; } } if (request->callback) { if (!((request->callback)(request))) free(request, M_ATAPI); } else wakeup((caddr_t)request); } #ifdef ATAPI_DEBUG printf("atapi_interrupt: error=0x%02x\n", request->result); #endif return ATA_OP_FINISHED; } void atapi_reinit(struct atapi_softc *atp) { /* reinit device parameters */ ata_dmainit(atp->controller, atp->unit, (apiomode(atp->atapi_parm) < 0) ? (atp->atapi_parm->dmaflag ? 4 : 0) : apiomode(atp->atapi_parm), (wdmamode(atp->atapi_parm) < 0) ? (atp->atapi_parm->dmaflag ? 2 : 0) : wdmamode(atp->atapi_parm), udmamode(atp->atapi_parm)); } int32_t atapi_test_ready(struct atapi_softc *atp) { int8_t ccb[16] = { ATAPI_TEST_UNIT_READY, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; return atapi_queue_cmd(atp, ccb, NULL, 0, 0, 30, NULL, NULL, NULL); } int32_t atapi_wait_ready(struct atapi_softc *atp, int32_t timeout) { int32_t error = 0, timout = timeout * hz; while (timout > 0) { if ((error = atapi_test_ready(atp)) != EBUSY) break; tsleep((caddr_t)&error, PRIBIO, "atpwt", 50); timout -= 50; } return error; } void atapi_dump(int8_t *label, void *data, int32_t len) { u_int8_t *p = data; printf ("atapi: %s %02x", label, *p++); while (--len > 0) printf ("-%02x", *p++); printf ("\n"); } static void atapi_read(struct atapi_request *request, int32_t length) { int8_t **buffer = (int8_t **)&request->data; int32_t resid; if (request->ccb[0] == ATAPI_REQUEST_SENSE) *buffer = (int8_t *)&request->sense; if (request->bytecount < length) { printf("atapi_interrupt: read data overrun %d/%d\n", length, request->bytecount); #ifdef ATA_16BIT_ONLY insw(request->device->controller->ioaddr + ATA_DATA, (void *)((uintptr_t)*buffer), length / sizeof(int16_t)); #else insl(request->device->controller->ioaddr + ATA_DATA, (void *)((uintptr_t)*buffer), length / sizeof(int32_t)); #endif for (resid=request->bytecount; residdevice->controller->ioaddr + ATA_DATA); } else insw(request->device->controller->ioaddr + ATA_DATA, (void *)((uintptr_t)*buffer), length / sizeof(int16_t)); request->bytecount -= length; *buffer += length; } static void atapi_write(struct atapi_request *request, int32_t length) { int8_t **buffer = (int8_t **)&request->data; int32_t resid; if (request->ccb[0] == ATAPI_REQUEST_SENSE) *buffer = (int8_t *)&request->sense; if (request->bytecount < length) { printf("atapi_interrupt: write data underrun %d/%d\n", length, request->bytecount); #ifdef ATA_16BIT_ONLY outsw(request->device->controller->ioaddr + ATA_DATA, (void *)((uintptr_t)*buffer), length / sizeof(int16_t)); #else outsl(request->device->controller->ioaddr + ATA_DATA, (void *)((uintptr_t)*buffer), length / sizeof(int32_t)); #endif for (resid=request->bytecount; residdevice->controller->ioaddr + ATA_DATA, 0); } else outsw(request->device->controller->ioaddr + ATA_DATA, (void *)((uintptr_t)*buffer), length / sizeof(int16_t)); request->bytecount -= length; *buffer += length; } static void atapi_timeout(struct atapi_request *request) { struct atapi_softc *atp = request->device; atp->controller->running = NULL; printf("ata%d-%s: atapi_timeout: cmd=%s - resetting\n", atp->controller->lun, (atp->unit == ATA_MASTER) ? "master" : "slave", atapi_cmd2str(request->ccb[0])); #ifdef ATAPI_DEBUG atapi_dump("ccb = ", &request->ccb[0], sizeof(request->ccb)); #endif if (request->flags & ATAPI_F_DMA_USED) ata_dmadone(atp->controller); /* if retries still permit, reinject this request */ if (request->retries++ < ATAPI_MAX_RETRIES) TAILQ_INSERT_HEAD(&atp->controller->atapi_queue, request, chain); else { /* retries all used up, return error */ request->result = ATAPI_SK_RESERVED | ATAPI_E_ABRT; wakeup((caddr_t)request); } ata_reinit(atp->controller); } static int8_t * atapi_type(int32_t type) { switch (type) { case ATAPI_TYPE_CDROM: return "CDROM"; case ATAPI_TYPE_DIRECT: return "floppy"; case ATAPI_TYPE_TAPE: return "tape"; case ATAPI_TYPE_OPTICAL: return "optical"; default: return "Unknown"; } } static int8_t * atapi_cmd2str(u_int8_t cmd) { switch (cmd) { case 0x00: return ("TEST_UNIT_READY"); case 0x01: return ("REWIND"); case 0x03: return ("REQUEST_SENSE"); case 0x04: return ("FORMAT_UNIT"); case 0x08: return ("READ"); case 0x0a: return ("WRITE"); case 0x10: return ("WEOF"); case 0x11: return ("SPACE"); case 0x15: return ("MODE_SELECT"); case 0x19: return ("ERASE"); case 0x1a: return ("MODE_SENSE"); case 0x1b: return ("START_STOP"); case 0x1e: return ("PREVENT_ALLOW"); case 0x25: return ("READ_CAPACITY"); case 0x28: return ("READ_BIG"); case 0x2a: return ("WRITE_BIG"); case 0x34: return ("READ_POSITION"); case 0x35: return ("SYNCHRONIZE_CACHE"); case 0x42: return ("READ_SUBCHANNEL"); case 0x43: return ("READ_TOC"); case 0x51: return ("READ_DISC_INFO"); case 0x52: return ("READ_TRACK_INFO"); case 0x53: return ("RESERVE_TRACK"); case 0x54: return ("SEND_OPC_INFO"); case 0x55: return ("MODE_SELECT_BIG"); case 0x58: return ("REPAIR_TRACK"); case 0x59: return ("READ_MASTER_CUE"); case 0x5a: return ("MODE_SENSE_BIG"); case 0x5b: return ("CLOSE_TRACK/SESSION"); case 0x5c: return ("READ_BUFFER_CAPACITY"); case 0x5d: return ("SEND_CUE_SHEET"); case 0x47: return ("PLAY_MSF"); case 0x4b: return ("PAUSE"); case 0x48: return ("PLAY_TRACK"); case 0xa1: return ("BLANK_CMD"); case 0xa3: return ("SEND_KEY"); case 0xa4: return ("REPORT_KEY"); case 0xa5: return ("PLAY_BIG"); case 0xad: return ("READ_DVD_STRUCTURE"); case 0xb4: return ("PLAY_CD"); case 0xbd: return ("MECH_STATUS"); case 0xbe: return ("READ_CD"); default: { static int8_t buffer[16]; sprintf(buffer, "Unknown CMD (0x%02x)", cmd); return buffer; } } } static int8_t * atapi_skey2str(u_int8_t skey) { switch (skey) { case 0x00: return ("NO SENSE"); case 0x01: return ("RECOVERED ERROR"); case 0x02: return ("NOT READY"); case 0x03: return ("MEDIUM ERROR"); case 0x04: return ("HARDWARE ERROR"); case 0x05: return ("ILLEGAL REQUEST"); case 0x06: return ("UNIT ATTENTION"); case 0x07: return ("DATA PROTECT"); case 0x08: return ("BLANK CHECK"); case 0x09: return ("VENDOR SPECIFIC"); case 0x0a: return ("COPY ABORTED"); case 0x0b: return ("ABORTED COMMAND"); case 0x0c: return ("EQUAL"); case 0x0d: return ("VOLUME OVERFLOW"); case 0x0e: return ("MISCOMPARE"); case 0x0f: return ("RESERVED"); default: return("UNKNOWN"); } } static int32_t atapi_wait(struct atapi_softc *atp, u_int8_t mask) { u_int32_t timeout = 0; while (timeout++ <= 500000) { /* timeout 5 secs */ atp->controller->status = inb(atp->controller->ioaddr + ATA_STATUS); /* if drive fails status, reselect the drive just to be sure */ if (atp->controller->status == 0xff) { outb(atp->controller->ioaddr + ATA_DRIVE, ATA_D_IBM | atp->unit); DELAY(1); atp->controller->status = inb(atp->controller->ioaddr + ATA_STATUS); } if (!(atp->controller->status & ATA_S_BUSY) && (atp->controller->status & ATA_S_READY)) break; DELAY (10); } if (timeout <= 0) return -1; if (!mask) return (atp->controller->status & ATA_S_ERROR); /* Wait 50 msec for bits wanted. */ for (timeout=5000; timeout>0; --timeout) { atp->controller->status = inb(atp->controller->ioaddr + ATA_STATUS); if ((atp->controller->status & mask) == mask) return (atp->controller->status & ATA_S_ERROR); DELAY (10); } return -1; } static void atapi_init(void) { /* register callback for when interrupts are enabled */ if (!(atapi_attach_hook = (struct intr_config_hook *)malloc(sizeof(struct intr_config_hook), M_TEMP, M_NOWAIT))) { printf("atapi: malloc attach_hook failed\n"); return; } bzero(atapi_attach_hook, sizeof(struct intr_config_hook)); atapi_attach_hook->ich_func = atapi_attach; if (config_intrhook_establish(atapi_attach_hook) != 0) { printf("atapi: config_intrhook_establish failed\n"); free(atapi_attach_hook, M_TEMP); } } SYSINIT(atconf, SI_SUB_CONFIGURE, SI_ORDER_SECOND, atapi_init, NULL)