diff options
Diffstat (limited to 'sys/dev/ata/atapi-all.c')
| -rw-r--r-- | sys/dev/ata/atapi-all.c | 690 |
1 files changed, 690 insertions, 0 deletions
diff --git a/sys/dev/ata/atapi-all.c b/sys/dev/ata/atapi-all.c new file mode 100644 index 0000000..1862ccf --- /dev/null +++ b/sys/dev/ata/atapi-all.c @@ -0,0 +1,690 @@ +/*- + * Copyright (c) 1998,1999,2000 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 "atapicd.h" +#include "atapist.h" +#include "atapifd.h" +#include "opt_global.h" +#include "opt_ata.h" +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/bus.h> +#include <sys/malloc.h> +#include <machine/clock.h> +#include <dev/ata/ata-all.h> +#include <dev/ata/atapi-all.h> + +/* prototypes */ +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); + +/* internal vars */ +MALLOC_DEFINE(M_ATAPI, "ATAPI generic", "ATAPI driver generic layer"); + +/* defines */ +#define ATAPI_MAX_RETRIES 3 +#define ATP_PARAM ATA_PARAM(atp->controller, atp->unit) + +void +atapi_attach(struct ata_softc *scp, int32_t device) +{ + struct atapi_softc *atp; + + if (!(atp = malloc(sizeof(struct atapi_softc), M_ATAPI, M_NOWAIT))) { + ata_printf(scp, device, "failed to allocate driver storage\n"); + return; + } + bzero(atp, sizeof(struct atapi_softc)); + atp->controller = scp; + atp->unit = device; + if (bootverbose) + ata_printf(scp, device, + "piomode=%d dmamode=%d udmamode=%d dmaflag=%d\n", + ata_pmode(ATP_PARAM), ata_wmode(ATP_PARAM), + ata_umode(ATP_PARAM), ATP_PARAM->dmaflag); + +#ifdef ATA_ENABLE_ATAPI_DMA + if (!(ATP_PARAM->drqtype == ATAPI_DRQT_INTR)) { + ata_dmainit(atp->controller, atp->unit, + (ata_pmode(ATP_PARAM) < 0) ? + (ATP_PARAM->dmaflag ? 4 : 0) : ata_pmode(ATP_PARAM), + (ata_wmode(ATP_PARAM) < 0) ? + (ATP_PARAM->dmaflag ? 2 : 0) : ata_wmode(ATP_PARAM), + ata_umode(ATP_PARAM)); + } + else +#endif + /* set PIO mode */ + ata_dmainit(atp->controller, atp->unit, + ata_pmode(ATP_PARAM)<0 ? 0 : ata_pmode(ATP_PARAM), -1, -1); + + switch (ATP_PARAM->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: + ata_printf(scp, device, "<%.40s/%.8s> %s device - NO DRIVER!\n", + ATP_PARAM->model, ATP_PARAM->revision, + atapi_type(ATP_PARAM->device_type)); + free(atp, M_ATAPI); + atp = NULL; + } + /* store our softc */ + scp->dev_softc[ATA_DEV(device)] = atp; +} + +void +atapi_detach(struct atapi_softc *atp) +{ + switch (ATP_PARAM->device_type) { +#if NATAPICD > 0 + case ATAPI_TYPE_CDROM: + acddetach(atp); + break; +#endif +#if NATAPIFD > 0 + case ATAPI_TYPE_DIRECT: + afddetach(atp); + break; +#endif +#if NATAPIST > 0 + case ATAPI_TYPE_TAPE: + astdetach(atp); + break; +#endif + default: + return; + } + free(atp, M_ATAPI); +} + +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 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_PARAM->cmdsize) ? 16 : 12; + bcopy(ccb, request->ccb, request->ccbsize); + if (callback) { + request->callback = callback; + request->driver = driver; + } + + s = splbio(); + + /* if not using callbacks, prepare to sleep for this request */ + if (!callback) + asleep((caddr_t)request, PRIBIO, "atprq", 0); + + /* append onto controller queue and try to start controller */ +#ifdef ATAPI_DEBUG + printf("%s: queueing %s ", + request->device->devname, atapi_cmd2str(request->ccb[0])); + atapi_dump("ccb = ", &request->ccb[0], sizeof(request->ccb)); +#endif + if (flags & ATPR_F_AT_HEAD) + TAILQ_INSERT_HEAD(&atp->controller->atapi_queue, request, chain); + else + TAILQ_INSERT_TAIL(&atp->controller->atapi_queue, request, chain); + 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 */ + await(PRIBIO, 0); + splx(s); + error = request->error; +#ifdef ATAPI_DEBUG + printf("%s: finished %s\n", + request->device->devname, atapi_cmd2str(request->ccb[0])); +#endif + free(request, M_ATAPI); + return error; +} + +void +atapi_start(struct atapi_softc *atp) +{ + switch (ATP_PARAM->device_type) { +#if NATAPICD > 0 + case ATAPI_TYPE_CDROM: + acd_start(atp); + break; +#endif +#if NATAPIFD > 0 + case ATAPI_TYPE_DIRECT: + afd_start(atp); + break; +#endif +#if NATAPIST > 0 + case ATAPI_TYPE_TAPE: + ast_start(atp); + break; +#endif + default: + return; + } +} + +void +atapi_transfer(struct atapi_request *request) +{ + struct atapi_softc *atp = request->device; + int32_t timout; + int8_t reason; + +#ifdef ATAPI_DEBUG + printf("%s: starting %s ", + request->device->devname, 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]; + + /* if DMA enabled setup DMA hardware */ + request->flags &= ~ATPR_F_DMA_USED; + if ((atp->controller->mode[ATA_DEV(atp->unit)] >= ATA_DMA) && + (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 & ATPR_F_READ)) { + request->flags |= ATPR_F_DMA_USED; + } + + /* start ATAPI operation */ + if (ata_command(atp->controller, atp->unit, ATA_C_PACKET_CMD, + request->bytecount, 0, 0, 0, + (request->flags & ATPR_F_DMA_USED) ? ATA_F_DMA : 0, + ATA_IMMEDIATE)) + printf("%s: failure to send ATAPI packet command\n", atp->devname); + + if (request->flags & ATPR_F_DMA_USED) + ata_dmastart(atp->controller); + + /* command interrupt device ? just return */ + if (ATP_PARAM->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("%s: failure to execute ATAPI packet command\n", atp->devname); + 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 reason, dma_stat = 0; + + if (request->ccb[0] == ATAPI_REQUEST_SENSE) + *buffer = (int8_t *)&request->sense; + + 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("%s: command interrupt without DRQ\n", atp->devname); + goto op_finished; + } + outsw(atp->controller->ioaddr + ATA_DATA, request->ccb, + request->ccbsize / sizeof(int16_t)); + return ATA_OP_CONTINUES; + } + + if (request->flags & ATPR_F_DMA_USED) { + dma_stat = ata_dmadone(atp->controller); + if ((atp->controller->status & (ATA_S_ERROR | ATA_S_DWF)) || + dma_stat & ATA_BMSTAT_ERROR) { + request->result = inb(atp->controller->ioaddr + ATA_ERROR); + } + else { + request->result = 0; + request->donecount = request->bytecount; + request->bytecount = 0; + } + } + else { + int32_t length = inb(atp->controller->ioaddr + ATA_CYL_LSB) | + inb(atp->controller->ioaddr + ATA_CYL_MSB) << 8; + + switch (reason) { + case ATAPI_P_WRITE: + if (request->flags & ATPR_F_READ) { + request->result = inb(atp->controller->ioaddr + ATA_ERROR); + printf("%s: %s trying to write on read buffer\n", + atp->devname, atapi_cmd2str(atp->cmd)); + break; + } + atapi_write(request, length); + return ATA_OP_CONTINUES; + + case ATAPI_P_READ: + if (!(request->flags & ATPR_F_READ)) { + request->result = inb(atp->controller->ioaddr + ATA_ERROR); + printf("%s: %s trying to read on write buffer\n", + atp->devname, atapi_cmd2str(atp->cmd)); + break; + } + atapi_read(request, length); + return ATA_OP_CONTINUES; + + case ATAPI_P_DONEDRQ: + printf("%s: %s DONEDRQ\n", atp->devname, atapi_cmd2str(atp->cmd)); + if (request->flags & ATPR_F_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; + break; + + default: + printf("%s: unknown transfer phase %d\n", atp->devname, 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 = ATPR_F_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("%s: %s - timeout error = %02x\n", + atp->devname, + 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("%s: %s - recovered error\n", + atp->devname, 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("%s: %s - %s asc=%02x ascq=%02x error=%02x\n", + atp->devname, 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) { +#ifdef ATAPI_DEBUG + printf("%s: finished %s (callback)\n", + request->device->devname, atapi_cmd2str(request->ccb[0])); +#endif + if (!((request->callback)(request))) + free(request, M_ATAPI); + } + else + wakeup((caddr_t)request); + } + return ATA_OP_FINISHED; +} + +void +atapi_reinit(struct atapi_softc *atp) +{ + /* reinit device parameters */ + if (atp->controller->mode[ATA_DEV(atp->unit)] >= ATA_DMA) + ata_dmainit(atp->controller, atp->unit, + (ata_pmode(ATP_PARAM) < 0) ? + (ATP_PARAM->dmaflag ? 4 : 0) : ata_pmode(ATP_PARAM), + (ata_wmode(ATP_PARAM) < 0) ? + (ATP_PARAM->dmaflag ? 2 : 0) : ata_wmode(ATP_PARAM), + ata_umode(ATP_PARAM)); + else + ata_dmainit(atp->controller, atp->unit, + ata_pmode(ATP_PARAM)<0 ? 0 : ata_pmode(ATP_PARAM), -1, -1); +} + +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); +} + +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 ("%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 size = min(request->bytecount, length); + int32_t resid; + + if (request->ccb[0] == ATAPI_REQUEST_SENSE) + *buffer = (int8_t *)&request->sense; + + if (request->device->controller->flags & ATA_USE_16BIT || + (size % sizeof(int32_t))) + insw(request->device->controller->ioaddr + ATA_DATA, + (void *)((uintptr_t)*buffer), size / sizeof(int16_t)); + else + insl(request->device->controller->ioaddr + ATA_DATA, + (void *)((uintptr_t)*buffer), size / sizeof(int32_t)); + + if (request->bytecount < length) { + printf("%s: read data overrun %d/%d\n", + request->device->devname, length, request->bytecount); + for (resid=request->bytecount; resid<length; resid+=sizeof(int16_t)) + inw(request->device->controller->ioaddr + ATA_DATA); + } + *buffer += size; + request->bytecount -= size; + request->donecount += size; +} + +static void +atapi_write(struct atapi_request *request, int32_t length) +{ + int8_t **buffer = (int8_t **)&request->data; + int32_t size = min(request->bytecount, length); + int32_t resid; + + if (request->ccb[0] == ATAPI_REQUEST_SENSE) + *buffer = (int8_t *)&request->sense; + + if (request->device->controller->flags & ATA_USE_16BIT || + (size % sizeof(int32_t))) + outsw(request->device->controller->ioaddr + ATA_DATA, + (void *)((uintptr_t)*buffer), size / sizeof(int16_t)); + else + outsl(request->device->controller->ioaddr + ATA_DATA, + (void *)((uintptr_t)*buffer), size / sizeof(int32_t)); + + if (request->bytecount < length) { + printf("%s: write data underrun %d/%d\n", + request->device->devname, length, request->bytecount); + for (resid=request->bytecount; resid<length; resid+=sizeof(int16_t)) + outw(request->device->controller->ioaddr + ATA_DATA, 0); + } + *buffer += size; + request->bytecount -= size; + request->donecount += size; +} + +static void +atapi_timeout(struct atapi_request *request) +{ + struct atapi_softc *atp = request->device; + int32_t s = splbio(); + + atp->controller->running = NULL; + printf("%s: %s command timeout - resetting\n", + atp->devname, atapi_cmd2str(request->ccb[0])); + + if (request->flags & ATPR_F_DMA_USED) { + ata_dmadone(atp->controller); + if (request->retries == ATAPI_MAX_RETRIES) { + ata_dmainit(atp->controller, atp->unit, + (ata_pmode(ATP_PARAM)<0)?0:ata_pmode(ATP_PARAM),-1,-1); + printf("%s: trying fallback to PIO mode\n", atp->devname); + request->retries = 0; + } + } + + /* 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); + splx(s); +} + +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 0x2b: return ("LOCATE"); + case 0x34: return ("READ_POSITION"); + case 0x35: return ("SYNCHRONIZE_CACHE"); + case 0x3b: return ("WRITE_BUFFER"); + case 0x3c: return ("READ_BUFFER"); + case 0x42: return ("READ_SUBCHANNEL"); + case 0x43: return ("READ_TOC"); + case 0x47: return ("PLAY_MSF"); + case 0x48: return ("PLAY_TRACK"); + case 0x4b: return ("PAUSE"); + case 0x51: return ("READ_DISK_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 0xa1: return ("BLANK_CMD"); + case 0xa3: return ("SEND_KEY"); + case 0xa4: return ("REPORT_KEY"); + case 0xa5: return ("PLAY_BIG"); + case 0xa6: return ("LOAD_UNLOAD"); + case 0xad: return ("READ_DVD_STRUCTURE"); + case 0xb4: return ("PLAY_CD"); + case 0xbb: return ("SET_SPEED"); + 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"); + } +} |
