ums: Attached SCSI disk.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>

diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index f02148b..1dd43f1 100644 (file)
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -405,7 +405,7 @@ static struct {
        .transport_parm         = "BBB",
        .protocol_parm          = "SCSI",
        .removable              = 0,
-       .can_stall              = 1,
+       .can_stall              = 0,
        .cdrom                  = 0,
        .vendor                 = FSG_VENDOR_ID,
        .product                = FSG_PRODUCT_ID,
@@ -1098,6 +1098,10 @@ static int sleep_thread(struct fsg_dev *fsg, int line)
                if (fsg->thread_wakeup_needed)
                        break;
                //schedule();
+               if (++i == 10000) {
+                       printf("+");
+                       i = 0;
+               }
                usb_gadget_handle_interrupts();
        }
        __set_current_state(TASK_RUNNING);
@@ -2007,12 +2011,8 @@ static int finish_reply(struct fsg_dev *fsg)
 {
        struct fsg_buffhd       *bh = fsg->next_buffhd_to_fill;
        int                     rc = 0;
-       int i = 0;
 
-       if (i++ == 1000) {
-               i = 0;
-               printf("finish_reply\n");
-       }
+       printf("finish_reply\n");
 
        switch (fsg->data_dir) {
        case DATA_DIR_NONE:
@@ -2023,6 +2023,7 @@ static int finish_reply(struct fsg_dev *fsg)
         * try to send or receive any data.  So stall both bulk pipes
         * if we can and wait for a reset. */
        case DATA_DIR_UNKNOWN:
+               printf("DATA_DIR_UNKNOWN\n");
                if (mod_data.can_stall) {
                        fsg_set_halt(fsg, fsg->bulk_out);
                        rc = halt_bulk_in_endpoint(fsg);
@@ -2031,11 +2032,14 @@ static int finish_reply(struct fsg_dev *fsg)
 
        /* All but the last buffer of data must have already been sent */
        case DATA_DIR_TO_HOST:
-               if (fsg->data_size == 0)
+               printf("DATA_DIR_TO_HOST\n");
+               if (fsg->data_size == 0){
                        ;               // Nothing to send
-
+                       printf("data_size == 0\n");
+               }
                /* If there's no residue, simply send the last buffer */
                else if (fsg->residue == 0) {
+                       printf("residue == 0\n");
                        bh->inreq->zero = 0;
                        start_transfer(fsg, fsg->bulk_in, bh->inreq,
                                        &bh->inreq_busy, &bh->state);
@@ -2049,6 +2053,7 @@ static int finish_reply(struct fsg_dev *fsg)
                 * sense data is set), then halt the bulk-in endpoint
                 * instead. */
                else if (!transport_is_bbb()) {
+                       printf("transport NOT bbb\n");
                        if (mod_data.can_stall &&
                                        fsg->residue == fsg->data_size &&
        (!fsg->curlun || fsg->curlun->sense_data != SS_NO_SENSE)) {
@@ -2066,7 +2071,9 @@ static int finish_reply(struct fsg_dev *fsg)
                 * short packet and halt the bulk-in endpoint.  If we can't
                 * stall, pad out the remaining data with 0's. */
                else {
+                       printf("transport bbb\n");
                        if (mod_data.can_stall) {
+                               printf("can stall\n");
                                bh->inreq->zero = 1;
                                start_transfer(fsg, fsg->bulk_in, bh->inreq,
                                                &bh->inreq_busy, &bh->state);
@@ -2080,6 +2087,7 @@ static int finish_reply(struct fsg_dev *fsg)
        /* We have processed all we want from the data the host has sent.
         * There may still be outstanding bulk-out requests. */
        case DATA_DIR_FROM_HOST:
+               printf("DATA_DIR_FROM_HOST\n");
                if (fsg->residue == 0)
                        ;               // Nothing to receive
 
@@ -2567,6 +2575,7 @@ static int do_scsi_command(struct fsg_dev *fsg)
                break;
        }
        up_read(&fsg->filesem);
+       printf("scsi_commmand done (almost)\n");
 
        if (reply == -EINTR) // || signal_pending(current))
                return -EINTR;