Inserted prints to see how sg_issue_command() is called (printing is disabled now)
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2d20937201
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7390158828
@ -39,11 +39,32 @@ static unsigned char MMC_TRACK_INFO[] = { 0x52, 0, 0, 0, 0, 0, 0, 16, 0, 0 };
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static unsigned char MMC_SEND_CUE_SHEET[] =
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{ 0x5D, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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static int mmc_function_spy_do_tell = 0;
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int mmc_function_spy(char * text)
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{
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if (mmc_function_spy_do_tell)
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fprintf(stderr,"libburn: experimental: mmc_function_spy: %s\n",
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text);
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return 1;
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}
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int mmc_function_spy_ctrl(int do_tell)
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{
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mmc_function_spy_do_tell= !!do_tell;
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return 1;
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}
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void mmc_send_cue_sheet(struct burn_drive *d, struct cue_sheet *s)
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{
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struct buffer buf;
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struct command c;
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mmc_function_spy("mmc_send_cue_sheet");
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c.retry = 1;
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c.oplen = sizeof(MMC_SEND_CUE_SHEET);
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memcpy(c.opcode, MMC_SEND_CUE_SHEET, sizeof(MMC_SEND_CUE_SHEET));
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@ -64,6 +85,7 @@ int mmc_get_nwa(struct burn_drive *d)
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struct command c;
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unsigned char *data;
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mmc_function_spy("mmc_get_nwa");
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c.retry = 1;
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c.oplen = sizeof(MMC_TRACK_INFO);
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memcpy(c.opcode, MMC_TRACK_INFO, sizeof(MMC_TRACK_INFO));
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@ -79,6 +101,7 @@ int mmc_get_nwa(struct burn_drive *d)
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void mmc_close_disc(struct burn_drive *d, struct burn_write_opts *o)
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{
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mmc_function_spy("mmc_close_disc");
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assert(o->drive == d);
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o->multi = 0;
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spc_select_write_params(d, o);
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@ -87,6 +110,7 @@ void mmc_close_disc(struct burn_drive *d, struct burn_write_opts *o)
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void mmc_close_session(struct burn_drive *d, struct burn_write_opts *o)
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{
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mmc_function_spy("mmc_close_session");
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assert(o->drive == d);
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o->multi = 3;
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spc_select_write_params(d, o);
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@ -97,6 +121,7 @@ void mmc_close(struct burn_drive *d, int session, int track)
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{
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struct command c;
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mmc_function_spy("mmc_close_session");
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c.retry = 1;
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c.oplen = sizeof(MMC_CLOSE);
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memcpy(c.opcode, MMC_CLOSE, sizeof(MMC_CLOSE));
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@ -113,6 +138,7 @@ void mmc_get_event(struct burn_drive *d)
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struct buffer buf;
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struct command c;
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mmc_function_spy("mmc_get_event");
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c.retry = 1;
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c.oplen = sizeof(MMC_GET_EVENT);
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memcpy(c.opcode, MMC_GET_EVENT, sizeof(MMC_GET_EVENT));
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@ -133,6 +159,7 @@ void mmc_write_12(struct burn_drive *d, int start, struct buffer *buf)
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struct command c;
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int len;
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mmc_function_spy("mmc_write_12");
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len = buf->sectors;
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assert(buf->bytes >= buf->sectors); /* can be == at 0... */
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burn_print(100, "trying to write %d at %d\n", len, start);
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@ -159,6 +186,7 @@ int mmc_write(struct burn_drive *d, int start, struct buffer *buf)
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struct command c;
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int len;
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mmc_function_spy("mmc_write");
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pthread_mutex_lock(&d->access_lock);
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cancelled = d->cancel;
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pthread_mutex_unlock(&d->access_lock);
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@ -203,6 +231,7 @@ void mmc_read_toc(struct burn_drive *d)
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int i;
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unsigned char *tdata;
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mmc_function_spy("mmc_read_toc");
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memcpy(c.opcode, MMC_GET_TOC, sizeof(MMC_GET_TOC));
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c.retry = 1;
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c.oplen = sizeof(MMC_GET_TOC);
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@ -293,6 +322,7 @@ void mmc_read_disc_info(struct burn_drive *d)
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unsigned char *data;
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struct command c;
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mmc_function_spy("mmc_read_disc_info");
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memcpy(c.opcode, MMC_GET_DISC_INFO, sizeof(MMC_GET_DISC_INFO));
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c.retry = 1;
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c.oplen = sizeof(MMC_GET_DISC_INFO);
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@ -329,6 +359,7 @@ void mmc_read_atip(struct burn_drive *d)
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struct buffer buf;
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struct command c;
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mmc_function_spy("mmc_read_atip");
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memcpy(c.opcode, MMC_GET_ATIP, sizeof(MMC_GET_ATIP));
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c.retry = 1;
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c.oplen = sizeof(MMC_GET_ATIP);
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@ -350,6 +381,7 @@ void mmc_read_sectors(struct burn_drive *d,
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int errorblock, req;
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struct command c;
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mmc_function_spy("mmc_read_sectors");
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assert(len >= 0);
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/* if the drive isn't busy, why the hell are we here? */
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assert(d->busy);
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@ -405,6 +437,7 @@ void mmc_erase(struct burn_drive *d, int fast)
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{
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struct command c;
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mmc_function_spy("mmc_erase");
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memcpy(c.opcode, MMC_ERASE, sizeof(MMC_ERASE));
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c.opcode[1] = 16; /* IMMED set to 1 */
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c.opcode[1] |= !!fast;
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@ -420,6 +453,7 @@ void mmc_read_lead_in(struct burn_drive *d, struct buffer *buf)
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int len;
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struct command c;
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mmc_function_spy("mmc_read_lead_in");
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len = buf->sectors;
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memcpy(c.opcode, MMC_READ_CD, sizeof(MMC_READ_CD));
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c.retry = 1;
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@ -442,6 +476,7 @@ void mmc_perform_opc(struct burn_drive *d)
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{
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struct command c;
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mmc_function_spy("mmc_perform_opc");
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memcpy(c.opcode, MMC_SEND_OPC, sizeof(MMC_SEND_OPC));
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c.retry = 1;
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c.oplen = sizeof(MMC_SEND_OPC);
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@ -455,6 +490,7 @@ void mmc_set_speed(struct burn_drive *d, int r, int w)
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{
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struct command c;
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mmc_function_spy("mmc_set_speed");
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memcpy(c.opcode, MMC_SET_SPEED, sizeof(MMC_SET_SPEED));
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c.retry = 1;
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c.oplen = sizeof(MMC_SET_SPEED);
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@ -473,6 +509,7 @@ void mmc_get_configuration(struct burn_drive *d)
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int len;
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struct command c;
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mmc_function_spy("mmc_get_configuration");
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memcpy(c.opcode, MMC_GET_CONFIGURATION, sizeof(MMC_GET_CONFIGURATION));
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c.retry = 1;
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c.oplen = sizeof(MMC_GET_CONFIGURATION);
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@ -497,6 +534,7 @@ void mmc_sync_cache(struct burn_drive *d)
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{
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struct command c;
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mmc_function_spy("mmc_sync_cache");
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memcpy(c.opcode, MMC_SYNC_CACHE, sizeof(MMC_SYNC_CACHE));
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c.retry = 1;
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c.oplen = sizeof(MMC_SYNC_CACHE);
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@ -37,6 +37,11 @@ extern int burn_sg_open_o_nonblock;
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extern int burn_sg_open_abort_busy;
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/* ts A60821
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<<< debug: for tracing calls which might use open drive fds */
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int mmc_function_spy(char * text);
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static int sgio_test(int fd)
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{
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unsigned char test_ops[] = { 0, 0, 0, 0, 0, 0 };
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@ -233,6 +238,10 @@ static void enumerate_common(char *fname)
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memset(&out.params, 0, sizeof(struct params));
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t = burn_drive_register(&out);
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/* ts A60821
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<<< debug: for tracing calls which might use open drive fds */
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mmc_function_spy("enumerate_common : -------- doing grab");
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/* try to get the drive info */
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if (sg_grab(t)) {
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burn_print(2, "getting drive info\n");
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@ -243,6 +252,10 @@ static void enumerate_common(char *fname)
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burn_print(2, "unable to grab new located drive\n");
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}
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/* ts A60821
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<<< debug: for tracing calls which might use open drive fds */
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mmc_function_spy("enumerate_common : ----- would release ");
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}
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/*
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@ -260,6 +273,11 @@ int sg_grab(struct burn_drive *d)
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/* ts A60813 */
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int open_mode = O_RDWR;
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/* ts A60821
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<<< debug: for tracing calls which might use open drive fds */
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mmc_function_spy("sg_grab");
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/* ts A60813
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O_EXCL with block devices is an unpublished feature
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of Linux kernels. Possibly introduced 2002.
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@ -279,9 +297,15 @@ int sg_grab(struct burn_drive *d)
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-1337 is the initial value of burn_drive.fd and the value after
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relase of drive. Unclear why not the official error return
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value -1 of open(2) war used. */
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if(d->fd == -1337)
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/* ts A60822: was if(d->fd == -1337) { */
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if(! burn_drive_is_open(d)) {
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/* ts A60821
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<<< debug: for tracing calls which might use open drive fds */
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mmc_function_spy("sg_grab ----------- opening");
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fd = open(d->devname, open_mode);
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else
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} else
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fd= d->fd;
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assert(fd != -1337);
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@ -313,10 +337,19 @@ int sg_grab(struct burn_drive *d)
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int sg_release(struct burn_drive *d)
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{
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/* ts A60821
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<<< debug: for tracing calls which might use open drive fds */
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mmc_function_spy("sg_release");
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if (d->fd < 1) {
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burn_print(1, "release an ungrabbed drive. die\n");
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return 0;
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}
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/* ts A60821
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<<< debug: for tracing calls which might use open drive fds */
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mmc_function_spy("sg_release ----------- closing");
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close(d->fd);
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d->fd = -1337;
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return 0;
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@ -328,6 +361,15 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
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int err;
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sg_io_hdr_t s;
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/* ts A60821
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<<< debug: for tracing calls which might use open drive fds */
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char buf[161];
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sprintf(buf,"sg_issue_command d->fd= %d d->released= %d\n",
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d->fd,d->released);
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mmc_function_spy(buf);
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c->error = 0;
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/*
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this is valid during the mode probe in scan
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