freebsd-dev/sys/dev/ata/atapi-all.c
2000-02-07 22:57:11 +00:00

629 lines
18 KiB
C

/*-
* 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 "apm.h"
#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/buf.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <machine/clock.h>
#if NAPM > 0
#include <machine/apm_bios.h>
#endif
#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);
/* extern references */
int32_t acdattach(struct atapi_softc *);
int32_t afdattach(struct atapi_softc *);
int32_t astattach(struct atapi_softc *);
/* internal vars */
MALLOC_DEFINE(M_ATAPI, "ATAPI generic", "ATAPI driver generic layer");
/* defines */
#define ATAPI_MAX_RETRIES 5
#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))) {
printf("atapi: 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(atp->unit)] = atp;
}
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_PARAM->cmdsize) ? 16 : 12;
bcopy(ccb, request->ccb, request->ccbsize);
if (callback) {
request->callback = callback;
request->bp = bp;
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 */
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 */
await(PRIBIO, 0);
splx(s);
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("%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];
/* 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->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 & A_READ)) {
atp->flags |= ATAPI_F_DMA_USED;
}
/* start ATAPI operation */
if (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))
printf("%s: failure to send ATAPI packet command\n", atp->devname);
if (atp->flags & ATAPI_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, but no 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 (atp->flags & ATAPI_F_DMA_USED) {
dma_stat = ata_dmadone(atp->controller);
atp->flags &= ~ATAPI_F_DMA_USED;
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->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 & A_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 & A_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 & 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;
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 = 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("%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) {
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 */
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));
}
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 ("%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;
}
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;
}
static void
atapi_timeout(struct atapi_request *request)
{
struct atapi_softc *atp = request->device;
int32_t s = splbio();
atp->controller->running = NULL;
printf("%s: atapi_timeout: cmd=%s - resetting\n",
atp->devname, atapi_cmd2str(request->ccb[0]));
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);
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 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 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");
}
}