diff options
Diffstat (limited to 'common/usb_storage.c')
| -rw-r--r-- | common/usb_storage.c | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/common/usb_storage.c b/common/usb_storage.c index 76949b85c..613c4f0f1 100644 --- a/common/usb_storage.c +++ b/common/usb_storage.c @@ -204,6 +204,22 @@ int usb_stor_info(void) return 1; } +static unsigned int usb_get_max_lun(struct us_data *us) +{ + int len; + unsigned char result; + len = usb_control_msg(us->pusb_dev, + usb_rcvctrlpipe(us->pusb_dev, 0), + US_BBB_GET_MAX_LUN, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + 0, us->ifnum, + &result, sizeof(result), + USB_CNTL_TIMEOUT * 5); + USB_STOR_PRINTF("Get Max LUN -> len = %i, result = %i\n", + len, (int) result); + return (len > 0) ? result : 0; +} + /******************************************************************************* * scan the usb and reports device info * to the user if mode = 1 @@ -241,13 +257,22 @@ int usb_stor_scan(int mode) break; /* no more devices avaiable */ if (usb_storage_probe(dev, 0, &usb_stor[usb_max_devs])) { - /* ok, it is a storage devices - * get info and fill it in + /* OK, it's a storage device. Iterate over its LUNs + * and populate `usb_dev_desc'. */ - if (usb_stor_get_info(dev, &usb_stor[usb_max_devs], - &usb_dev_desc[usb_max_devs]) == 1) + int lun, max_lun, start = usb_max_devs; + + max_lun = usb_get_max_lun(&usb_stor[usb_max_devs]); + for (lun = 0; + lun <= max_lun && usb_max_devs < USB_MAX_STOR_DEV; + lun++) { + usb_dev_desc[usb_max_devs].lun = lun; + if (usb_stor_get_info(dev, &usb_stor[start], + &usb_dev_desc[usb_max_devs]) == 1) { usb_max_devs++; } + } + } /* if storage device */ if (usb_max_devs == USB_MAX_STOR_DEV) { printf("max USB Storage Device reached: %d stopping\n", @@ -882,6 +907,7 @@ static int usb_inquiry(ccb *srb, struct us_data *ss) do { memset(&srb->cmd[0], 0, 12); srb->cmd[0] = SCSI_INQUIRY; + srb->cmd[1] = srb->lun << 5; srb->cmd[4] = 36; srb->datalen = 36; srb->cmdlen = 12; @@ -905,6 +931,7 @@ static int usb_request_sense(ccb *srb, struct us_data *ss) ptr = (char *)srb->pdata; memset(&srb->cmd[0], 0, 12); srb->cmd[0] = SCSI_REQ_SENSE; + srb->cmd[1] = srb->lun << 5; srb->cmd[4] = 18; srb->datalen = 18; srb->pdata = &srb->sense_buf[0]; @@ -924,6 +951,7 @@ static int usb_test_unit_ready(ccb *srb, struct us_data *ss) do { memset(&srb->cmd[0], 0, 12); srb->cmd[0] = SCSI_TST_U_RDY; + srb->cmd[1] = srb->lun << 5; srb->datalen = 0; srb->cmdlen = 12; if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) @@ -943,6 +971,7 @@ static int usb_read_capacity(ccb *srb, struct us_data *ss) do { memset(&srb->cmd[0], 0, 12); srb->cmd[0] = SCSI_RD_CAPAC; + srb->cmd[1] = srb->lun << 5; srb->datalen = 8; srb->cmdlen = 12; if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) @@ -957,6 +986,7 @@ static int usb_read_10(ccb *srb, struct us_data *ss, unsigned long start, { memset(&srb->cmd[0], 0, 12); srb->cmd[0] = SCSI_READ10; + srb->cmd[1] = srb->lun << 5; srb->cmd[2] = ((unsigned char) (start >> 24)) & 0xff; srb->cmd[3] = ((unsigned char) (start >> 16)) & 0xff; srb->cmd[4] = ((unsigned char) (start >> 8)) & 0xff; @@ -973,6 +1003,7 @@ static int usb_write_10(ccb *srb, struct us_data *ss, unsigned long start, { memset(&srb->cmd[0], 0, 12); srb->cmd[0] = SCSI_WRITE10; + srb->cmd[1] = srb->lun << 5; srb->cmd[2] = ((unsigned char) (start >> 24)) & 0xff; srb->cmd[3] = ((unsigned char) (start >> 16)) & 0xff; srb->cmd[4] = ((unsigned char) (start >> 8)) & 0xff; |