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Trying to detect FreeBSD ahci devices and to handle others the old way

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This commit is contained in:
Thomas Schmitt 2010-03-27 17:27:50 +00:00
parent 6e17c59f6b
commit e6029ae238
3 changed files with 109 additions and 15 deletions
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2
cdrskin/cdrskin_timestamp.h
View File

@ -1 +1 @@
#define Cdrskin_timestamP "2010.03.27.155659"
#define Cdrskin_timestamP "2010.03.27.172644"

1
libburn/os-freebsd.h
View File

@ -59,5 +59,6 @@ typedef struct burn_drive_enumeration_state *burn_drive_enumerator_t;
#define BURN_OS_TRANSPORT_DRIVE_ELEMENTS \
struct cam_device* cam; \
int lock_fd; \
int is_ahci; \

121
libburn/sg-freebsd.c
View File

@ -5,7 +5,6 @@
Provided under GPL version 2 or later.
*/
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
@ -30,6 +29,18 @@
#include <sys/disk.h> /* DIOCGMEDIASIZE */
/* ts B00326 : For use of CAM_PASS_ERR_RECOVER with ahci */
#define Libburn_for_freebsd_ahcI yes
/* ts B00327 : for debugging of cam_send_cdb() failures
# define Libburn_ahci_verbouS yes
*/
/* ts B00327 : Apply CAM_PASS_ERR_RECOVER to drives even if not ahci
# define libburn_ahci_style_for_alL yes
*/
#include "transport.h"
#include "drive.h"
#include "sg.h"
@ -435,6 +446,7 @@ static void enumerate_common(char *fname, int bus_no, int host_no,
out.cam = NULL;
out.lock_fd = -1;
out.is_ahci = 0;
out.start_lba= -2000000000;
out.end_lba= -2000000000;
@ -527,6 +539,7 @@ static void enumerate_common(char *fname, int bus_no, int host_no,
/* Adapter specific handles and data */
out.cam = NULL;
out.lock_fd = -1;
out.is_ahci = 0;
/* Adapter specific functions */
out.grab = sg_grab;
@ -678,6 +691,7 @@ static int sg_lock(struct burn_drive *d, int flag)
int sg_grab(struct burn_drive *d)
{
struct cam_device *cam;
char path_string[80];
if (mmc_function_spy(d, "sg_grab") <= 0)
return 0;
@ -700,6 +714,18 @@ int sg_grab(struct burn_drive *d)
if (sg_lock(d, 0) <= 0)
return 0;
fcntl(cam->fd, F_SETOWN, getpid());
cam_path_string(d->cam, path_string, sizeof(path_string));
#ifdef Libburn_ahci_verbouS
fprintf(stderr, "libburn_EXPERIMENTAL: CAM path = %s\n", path_string);
#endif
if (strstr(path_string, ":ahcich") != NULL)
d->is_ahci = 1;
else
d->is_ahci = -1;
d->released = 0;
return 1;
}
@ -729,7 +755,8 @@ int sg_release(struct burn_drive *d)
int sg_issue_command(struct burn_drive *d, struct command *c)
{
int done = 0, err, sense_len = 0, ret;
int done = 0, err, sense_len = 0, ret, ignore_error;
int cam_pass_err_recover = 0;
union ccb *ccb;
char buf[161];
static FILE *fp = NULL;
@ -784,7 +811,14 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
on eject. Long lasting TEST UNIT READY cycles break with
errno 16.
*/
ccb->ccb_h.flags|= CAM_PASS_ERR_RECOVER;
#ifdef Libburn_ahci_style_for_alL
{
#else
if (d->is_ahci > 0) {
#endif
ccb->ccb_h.flags |= CAM_PASS_ERR_RECOVER;
cam_pass_err_recover = 1;
}
#endif /* Libburn_for_freebsd_ahcI */
ccb->csio.cdb_len = c->oplen;
@ -819,7 +853,71 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
do {
memset(c->sense, 0, sizeof(c->sense));
err = cam_send_ccb(d->cam, ccb);
if (err == -1) {
ignore_error = sense_len = 0;
/* ts B00325 : CAM_AUTOSNS_VALID advised by Alexander Motin */
if (ccb->ccb_h.status & CAM_AUTOSNS_VALID) {
/* ts B00110 */
/* Better curb sense_len */
sense_len = ccb->csio.sense_len;
if (sense_len > sizeof(c->sense))
sense_len = sizeof(c->sense);
memcpy(c->sense, &ccb->csio.sense_data, sense_len);
if (sense_len >= 14 && cam_pass_err_recover &&
(c->sense[2] & 0x0f))
ignore_error = 1;
}
if (err == -1 && cam_pass_err_recover && ! ignore_error) {
#ifdef Libburn_ahci_verbouS
fprintf(stderr, "libburn_EXPERIMENTAL: errno = %d . cam_errbuf = '%s'\n", errno, cam_errbuf);
#endif
if (errno == ENXIO) {
/* Operations on empty or ejected tray */
/* Inquiries while tray is being loaded */
/* MEDIUM NOT PRESENT */
#ifdef Libburn_ahci_verbouS
fprintf(stderr, "libburn_EXPERIMENTAL: Emulating [2,3A,00] MEDIUM NOT PRESENT\n");
#endif
c->sense[2] = 0x02;
c->sense[12] = 0x3A;
c->sense[13] = 0x00;
sense_len = 14;
ignore_error = 1;
} else if (c->opcode[0] == 0 && errno == EBUSY) {
/* Timeout of TEST UNIT READY loop */
/*LOGICAL UNIT NOT READY,CAUSE NOT REPORTABLE*/
#ifdef Libburn_ahci_verbouS
fprintf(stderr, "libburn_EXPERIMENTAL: Emulating [2,04,00] LOGICAL UNIT NOT READY,CAUSE NOT REPORTABLE\n");
#endif
c->sense[2] = 0x02;
c->sense[12] = 0x04;
c->sense[13] = 0x00;
sense_len = 14;
ignore_error = 1;
} else if (errno == EINVAL) {
/* Inappropriate MODE SENSE */
/* INVALID FIELD IN CDB */
#ifdef Libburn_ahci_verbouS
fprintf(stderr, "libburn_EXPERIMENTAL: Emulating [5,24,00] INVALID FIELD IN CDB\n");
#endif
c->sense[2] = 0x05;
c->sense[12] = 0x24;
c->sense[13] = 0x00;
sense_len = 14;
ignore_error = 1;
}
}
if (err == -1 && !ignore_error) {
libdax_msgs_submit(libdax_messenger,
d->global_index, 0x0002010c,
LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
@ -833,19 +931,14 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
}
/* XXX */
/* ts B00325 : Advise by Alexander Motin */
if (ccb->ccb_h.status & CAM_AUTOSNS_VALID) {
/* ts B00110 */
/* Better curb sense_len */
sense_len = ccb->csio.sense_len;
if (sense_len > sizeof(c->sense))
sense_len = sizeof(c->sense);
memcpy(c->sense, &ccb->csio.sense_data, sense_len);
}
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
if (sense_len < 14) {
/*LOGICAL UNIT NOT READY,CAUSE NOT REPORTABLE*/
#ifdef Libburn_ahci_verbouS
fprintf(stderr, "libburn_EXPERIMENTAL: CAM_STATUS= %d .Emulating [2,04,00] LOGICAL UNIT NOT READY,CAUSE NOT REPORTABLE\n", (ccb->ccb_h.status & CAM_STATUS_MASK));
#endif
c->sense[2] = 0x02;
c->sense[12] = 0x04;
c->sense[13] = 0x00;