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libisofs-legacy
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Inserted prints to see how sg_issue_command() is called (printing is disabled now)

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master
Thomas Schmitt 17 years ago
parent 14e95330e9
commit dc74390bd5
2 changed files with 82 additions and 2 deletions
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38
libburn/mmc.c
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@ -39,11 +39,32 @@ static unsigned char MMC_TRACK_INFO[] = { 0x52, 0, 0, 0, 0, 0, 0, 16, 0, 0 };
static unsigned char MMC_SEND_CUE_SHEET[] =
{ 0x5D, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
static int mmc_function_spy_do_tell = 0;
int mmc_function_spy(char * text)
{
if (mmc_function_spy_do_tell)
fprintf(stderr,"libburn: experimental: mmc_function_spy: %s\n",
text);
return 1;
}
int mmc_function_spy_ctrl(int do_tell)
{
mmc_function_spy_do_tell= !!do_tell;
return 1;
}
void mmc_send_cue_sheet(struct burn_drive *d, struct cue_sheet *s)
{
struct buffer buf;
struct command c;
mmc_function_spy("mmc_send_cue_sheet");
c.retry = 1;
c.oplen = sizeof(MMC_SEND_CUE_SHEET);
memcpy(c.opcode, MMC_SEND_CUE_SHEET, sizeof(MMC_SEND_CUE_SHEET));
@ -64,6 +85,7 @@ int mmc_get_nwa(struct burn_drive *d)
struct command c;
unsigned char *data;
mmc_function_spy("mmc_get_nwa");
c.retry = 1;
c.oplen = sizeof(MMC_TRACK_INFO);
memcpy(c.opcode, MMC_TRACK_INFO, sizeof(MMC_TRACK_INFO));
@ -79,6 +101,7 @@ int mmc_get_nwa(struct burn_drive *d)
void mmc_close_disc(struct burn_drive *d, struct burn_write_opts *o)
{
mmc_function_spy("mmc_close_disc");
assert(o->drive == d);
o->multi = 0;
spc_select_write_params(d, o);
@ -87,6 +110,7 @@ void mmc_close_disc(struct burn_drive *d, struct burn_write_opts *o)
void mmc_close_session(struct burn_drive *d, struct burn_write_opts *o)
{
mmc_function_spy("mmc_close_session");
assert(o->drive == d);
o->multi = 3;
spc_select_write_params(d, o);
@ -97,6 +121,7 @@ void mmc_close(struct burn_drive *d, int session, int track)
{
struct command c;
mmc_function_spy("mmc_close_session");
c.retry = 1;
c.oplen = sizeof(MMC_CLOSE);
memcpy(c.opcode, MMC_CLOSE, sizeof(MMC_CLOSE));
@ -113,6 +138,7 @@ void mmc_get_event(struct burn_drive *d)
struct buffer buf;
struct command c;
mmc_function_spy("mmc_get_event");
c.retry = 1;
c.oplen = sizeof(MMC_GET_EVENT);
memcpy(c.opcode, MMC_GET_EVENT, sizeof(MMC_GET_EVENT));
@ -133,6 +159,7 @@ void mmc_write_12(struct burn_drive *d, int start, struct buffer *buf)
struct command c;
int len;
mmc_function_spy("mmc_write_12");
len = buf->sectors;
assert(buf->bytes >= buf->sectors); /* can be == at 0... */
burn_print(100, "trying to write %d at %d\n", len, start);
@ -159,6 +186,7 @@ int mmc_write(struct burn_drive *d, int start, struct buffer *buf)
struct command c;
int len;
mmc_function_spy("mmc_write");
pthread_mutex_lock(&d->access_lock);
cancelled = d->cancel;
pthread_mutex_unlock(&d->access_lock);
@ -203,6 +231,7 @@ void mmc_read_toc(struct burn_drive *d)
int i;
unsigned char *tdata;
mmc_function_spy("mmc_read_toc");
memcpy(c.opcode, MMC_GET_TOC, sizeof(MMC_GET_TOC));
c.retry = 1;
c.oplen = sizeof(MMC_GET_TOC);
@ -293,6 +322,7 @@ void mmc_read_disc_info(struct burn_drive *d)
unsigned char *data;
struct command c;
mmc_function_spy("mmc_read_disc_info");
memcpy(c.opcode, MMC_GET_DISC_INFO, sizeof(MMC_GET_DISC_INFO));
c.retry = 1;
c.oplen = sizeof(MMC_GET_DISC_INFO);
@ -329,6 +359,7 @@ void mmc_read_atip(struct burn_drive *d)
struct buffer buf;
struct command c;
mmc_function_spy("mmc_read_atip");
memcpy(c.opcode, MMC_GET_ATIP, sizeof(MMC_GET_ATIP));
c.retry = 1;
c.oplen = sizeof(MMC_GET_ATIP);
@ -350,6 +381,7 @@ void mmc_read_sectors(struct burn_drive *d,
int errorblock, req;
struct command c;
mmc_function_spy("mmc_read_sectors");
assert(len >= 0);
/* if the drive isn't busy, why the hell are we here? */
assert(d->busy);
@ -405,6 +437,7 @@ void mmc_erase(struct burn_drive *d, int fast)
{
struct command c;
mmc_function_spy("mmc_erase");
memcpy(c.opcode, MMC_ERASE, sizeof(MMC_ERASE));
c.opcode[1] = 16; /* IMMED set to 1 */
c.opcode[1] |= !!fast;
@ -420,6 +453,7 @@ void mmc_read_lead_in(struct burn_drive *d, struct buffer *buf)
int len;
struct command c;
mmc_function_spy("mmc_read_lead_in");
len = buf->sectors;
memcpy(c.opcode, MMC_READ_CD, sizeof(MMC_READ_CD));
c.retry = 1;
@ -442,6 +476,7 @@ void mmc_perform_opc(struct burn_drive *d)
{
struct command c;
mmc_function_spy("mmc_perform_opc");
memcpy(c.opcode, MMC_SEND_OPC, sizeof(MMC_SEND_OPC));
c.retry = 1;
c.oplen = sizeof(MMC_SEND_OPC);
@ -455,6 +490,7 @@ void mmc_set_speed(struct burn_drive *d, int r, int w)
{
struct command c;
mmc_function_spy("mmc_set_speed");
memcpy(c.opcode, MMC_SET_SPEED, sizeof(MMC_SET_SPEED));
c.retry = 1;
c.oplen = sizeof(MMC_SET_SPEED);
@ -473,6 +509,7 @@ void mmc_get_configuration(struct burn_drive *d)
int len;
struct command c;
mmc_function_spy("mmc_get_configuration");
memcpy(c.opcode, MMC_GET_CONFIGURATION, sizeof(MMC_GET_CONFIGURATION));
c.retry = 1;
c.oplen = sizeof(MMC_GET_CONFIGURATION);
@ -497,6 +534,7 @@ void mmc_sync_cache(struct burn_drive *d)
{
struct command c;
mmc_function_spy("mmc_sync_cache");
memcpy(c.opcode, MMC_SYNC_CACHE, sizeof(MMC_SYNC_CACHE));
c.retry = 1;
c.oplen = sizeof(MMC_SYNC_CACHE);

46
libburn/sg.c
Unescape View File

@ -37,6 +37,11 @@ extern int burn_sg_open_o_nonblock;
extern int burn_sg_open_abort_busy;
/* ts A60821
<<< debug: for tracing calls which might use open drive fds */
int mmc_function_spy(char * text);
static int sgio_test(int fd)
{
unsigned char test_ops[] = { 0, 0, 0, 0, 0, 0 };
@ -233,6 +238,10 @@ static void enumerate_common(char *fname)
memset(&out.params, 0, sizeof(struct params));
t = burn_drive_register(&out);
/* ts A60821
<<< debug: for tracing calls which might use open drive fds */
mmc_function_spy("enumerate_common : -------- doing grab");
/* try to get the drive info */
if (sg_grab(t)) {
burn_print(2, "getting drive info\n");
@ -243,6 +252,10 @@ static void enumerate_common(char *fname)
burn_print(2, "unable to grab new located drive\n");
}
/* ts A60821
<<< debug: for tracing calls which might use open drive fds */
mmc_function_spy("enumerate_common : ----- would release ");
}
/*
@ -260,6 +273,11 @@ int sg_grab(struct burn_drive *d)
/* ts A60813 */
int open_mode = O_RDWR;
/* ts A60821
<<< debug: for tracing calls which might use open drive fds */
mmc_function_spy("sg_grab");
/* ts A60813
O_EXCL with block devices is an unpublished feature
of Linux kernels. Possibly introduced 2002.
@ -279,9 +297,15 @@ int sg_grab(struct burn_drive *d)
-1337 is the initial value of burn_drive.fd and the value after
relase of drive. Unclear why not the official error return
value -1 of open(2) war used. */
if(d->fd == -1337)
/* ts A60822: was if(d->fd == -1337) { */
if(! burn_drive_is_open(d)) {
/* ts A60821
<<< debug: for tracing calls which might use open drive fds */
mmc_function_spy("sg_grab ----------- opening");
fd = open(d->devname, open_mode);
else
} else
fd= d->fd;
assert(fd != -1337);
@ -313,10 +337,19 @@ int sg_grab(struct burn_drive *d)
int sg_release(struct burn_drive *d)
{
/* ts A60821
<<< debug: for tracing calls which might use open drive fds */
mmc_function_spy("sg_release");
if (d->fd < 1) {
burn_print(1, "release an ungrabbed drive. die\n");
return 0;
}
/* ts A60821
<<< debug: for tracing calls which might use open drive fds */
mmc_function_spy("sg_release ----------- closing");
close(d->fd);
d->fd = -1337;
return 0;
@ -328,6 +361,15 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
int err;
sg_io_hdr_t s;
/* ts A60821
<<< debug: for tracing calls which might use open drive fds */
char buf[161];
sprintf(buf,"sg_issue_command d->fd= %d d->released= %d\n",
d->fd,d->released);
mmc_function_spy(buf);
c->error = 0;
/*
this is valid during the mode probe in scan

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