struct usb_device *pusb_dev; /* this usb_device */
unsigned int flags; /* from filter initially */
+# define USB_READY (1 << 0)
unsigned char ifnum; /* interface number */
unsigned char ep_in; /* in endpoint */
unsigned char ep_out; /* out ....... */
trans_cmnd transport; /* transport routine */
};
+#ifdef CONFIG_USB_EHCI
/*
- * The U-Boot EHCI driver cannot handle more than 5 page aligned buffers
- * of 4096 bytes in a transfer without running itself out of qt_buffers
+ * The U-Boot EHCI driver can handle any transfer length as long as there is
+ * enough free heap space left, but the SCSI READ(10) and WRITE(10) commands are
+ * limited to 65535 blocks.
*/
-#define USB_MAX_XFER_BLK(start, blksz) (((4096 * 5) - (start % 4096)) / blksz)
+#define USB_MAX_XFER_BLK 65535
+#else
+#define USB_MAX_XFER_BLK 20
+#endif
static struct us_data usb_stor[USB_MAX_STOR_DEV];
int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
struct us_data *ss);
unsigned long usb_stor_read(int device, unsigned long blknr,
- unsigned long blkcnt, void *buffer);
+ lbaint_t blkcnt, void *buffer);
unsigned long usb_stor_write(int device, unsigned long blknr,
- unsigned long blkcnt, const void *buffer);
+ lbaint_t blkcnt, const void *buffer);
struct usb_device * usb_get_dev_index(int index);
void uhci_show_temp_int_td(void);
}
#endif
-void usb_show_progress(void)
+static void usb_show_progress(void)
{
debug(".");
}
struct usb_device *dev;
if (mode == 1)
- printf(" scanning bus for storage devices... ");
+ printf(" scanning usb for storage devices... ");
usb_disable_asynch(1); /* asynch transfer not allowed */
result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
US_BBB_RESET,
USB_TYPE_CLASS | USB_RECIP_INTERFACE,
- 0, us->ifnum, 0, 0, USB_CNTL_TIMEOUT * 5);
+ 0, us->ifnum, NULL, 0, USB_CNTL_TIMEOUT * 5);
if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) {
USB_STOR_PRINTF("RESET:stall\n");
* Set up the command for a BBB device. Note that the actual SCSI
* command is copied into cbw.CBWCDB.
*/
-int usb_stor_BBB_comdat(ccb *srb, struct us_data *us)
+static int usb_stor_BBB_comdat(ccb *srb, struct us_data *us)
{
int result;
int actlen;
/* FIXME: we also need a CBI_command which sets up the completion
* interrupt, and waits for it
*/
-int usb_stor_CB_comdat(ccb *srb, struct us_data *us)
+static int usb_stor_CB_comdat(ccb *srb, struct us_data *us)
{
int result = 0;
int dir_in, retry;
}
-int usb_stor_CBI_get_status(ccb *srb, struct us_data *us)
+static int usb_stor_CBI_get_status(ccb *srb, struct us_data *us)
{
int timeout;
(void *) &us->ip_data, us->irqmaxp, us->irqinterval);
timeout = 1000;
while (timeout--) {
- if ((volatile int *) us->ip_wanted == 0)
+ if ((volatile int *) us->ip_wanted == NULL)
break;
mdelay(10);
}
#define USB_TRANSPORT_NOT_READY_RETRY 10
/* clear a stall on an endpoint - special for BBB devices */
-int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt)
+static int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt)
{
int result;
/* ENDPOINT_HALT = 0, so set value to 0 */
result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT,
- 0, endpt, 0, 0, USB_CNTL_TIMEOUT * 5);
+ 0, endpt, NULL, 0, USB_CNTL_TIMEOUT * 5);
return result;
}
-int usb_stor_BBB_transport(ccb *srb, struct us_data *us)
+static int usb_stor_BBB_transport(ccb *srb, struct us_data *us)
{
int result, retry;
int dir_in;
usb_stor_BBB_reset(us);
return USB_STOR_TRANSPORT_FAILED;
}
- mdelay(5);
+ if (!(us->flags & USB_READY))
+ mdelay(5);
pipein = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
pipeout = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
/* DATA phase + error handling */
return result;
}
-int usb_stor_CB_transport(ccb *srb, struct us_data *us)
+static int usb_stor_CB_transport(ccb *srb, struct us_data *us)
{
int result, status;
ccb *psrb;
srb->cmd[1] = srb->lun << 5;
srb->datalen = 0;
srb->cmdlen = 12;
- if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD)
+ if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) {
+ ss->flags |= USB_READY;
return 0;
+ }
usb_request_sense(srb, ss);
+ /*
+ * Check the Key Code Qualifier, if it matches
+ * "Not Ready - medium not present"
+ * (the sense Key equals 0x2 and the ASC is 0x3a)
+ * return immediately as the medium being absent won't change
+ * unless there is a user action.
+ */
+ if ((srb->sense_buf[2] == 0x02) &&
+ (srb->sense_buf[12] == 0x3a))
+ return -1;
mdelay(100);
} while (retries--);
#endif /* CONFIG_USB_BIN_FIXUP */
unsigned long usb_stor_read(int device, unsigned long blknr,
- unsigned long blkcnt, void *buffer)
+ lbaint_t blkcnt, void *buffer)
{
- unsigned long start, blks, buf_addr, max_xfer_blk;
+ lbaint_t start, blks;
+ uintptr_t buf_addr;
unsigned short smallblks;
struct usb_device *dev;
struct us_data *ss;
buf_addr = (unsigned long)buffer;
start = blknr;
blks = blkcnt;
- if (usb_test_unit_ready(srb, ss)) {
- printf("Device NOT ready\n Request Sense returned %02X %02X"
- " %02X\n", srb->sense_buf[2], srb->sense_buf[12],
- srb->sense_buf[13]);
- return 0;
- }
- USB_STOR_PRINTF("\nusb_read: dev %d startblk %lx, blccnt %lx"
+ USB_STOR_PRINTF("\nusb_read: dev %d startblk " LBAF ", blccnt " LBAF
" buffer %lx\n", device, start, blks, buf_addr);
do {
/* XXX need some comment here */
retry = 2;
srb->pdata = (unsigned char *)buf_addr;
- max_xfer_blk = USB_MAX_XFER_BLK(buf_addr,
- usb_dev_desc[device].blksz);
- if (blks > max_xfer_blk)
- smallblks = (unsigned short) max_xfer_blk;
+ if (blks > USB_MAX_XFER_BLK)
+ smallblks = USB_MAX_XFER_BLK;
else
smallblks = (unsigned short) blks;
retry_it:
- if (smallblks == max_xfer_blk)
+ if (smallblks == USB_MAX_XFER_BLK)
usb_show_progress();
srb->datalen = usb_dev_desc[device].blksz * smallblks;
srb->pdata = (unsigned char *)buf_addr;
blks -= smallblks;
buf_addr += srb->datalen;
} while (blks != 0);
+ ss->flags &= ~USB_READY;
- USB_STOR_PRINTF("usb_read: end startblk %lx, blccnt %x buffer %lx\n",
+ USB_STOR_PRINTF("usb_read: end startblk " LBAF
+ ", blccnt %x buffer %lx\n",
start, smallblks, buf_addr);
usb_disable_asynch(0); /* asynch transfer allowed */
- if (blkcnt >= max_xfer_blk)
+ if (blkcnt >= USB_MAX_XFER_BLK)
debug("\n");
return blkcnt;
}
unsigned long usb_stor_write(int device, unsigned long blknr,
- unsigned long blkcnt, const void *buffer)
+ lbaint_t blkcnt, const void *buffer)
{
- unsigned long start, blks, buf_addr, max_xfer_blk;
+ lbaint_t start, blks;
+ uintptr_t buf_addr;
unsigned short smallblks;
struct usb_device *dev;
struct us_data *ss;
buf_addr = (unsigned long)buffer;
start = blknr;
blks = blkcnt;
- if (usb_test_unit_ready(srb, ss)) {
- printf("Device NOT ready\n Request Sense returned %02X %02X"
- " %02X\n", srb->sense_buf[2], srb->sense_buf[12],
- srb->sense_buf[13]);
- return 0;
- }
- USB_STOR_PRINTF("\nusb_write: dev %d startblk %lx, blccnt %lx"
+ USB_STOR_PRINTF("\nusb_write: dev %d startblk " LBAF ", blccnt " LBAF
" buffer %lx\n", device, start, blks, buf_addr);
do {
*/
retry = 2;
srb->pdata = (unsigned char *)buf_addr;
- max_xfer_blk = USB_MAX_XFER_BLK(buf_addr,
- usb_dev_desc[device].blksz);
- if (blks > max_xfer_blk)
- smallblks = (unsigned short) max_xfer_blk;
+ if (blks > USB_MAX_XFER_BLK)
+ smallblks = USB_MAX_XFER_BLK;
else
smallblks = (unsigned short) blks;
retry_it:
- if (smallblks == max_xfer_blk)
+ if (smallblks == USB_MAX_XFER_BLK)
usb_show_progress();
srb->datalen = usb_dev_desc[device].blksz * smallblks;
srb->pdata = (unsigned char *)buf_addr;
blks -= smallblks;
buf_addr += srb->datalen;
} while (blks != 0);
+ ss->flags &= ~USB_READY;
- USB_STOR_PRINTF("usb_write: end startblk %lx, blccnt %x buffer %lx\n",
+ USB_STOR_PRINTF("usb_write: end startblk " LBAF
+ ", blccnt %x buffer %lx\n",
start, smallblks, buf_addr);
usb_disable_asynch(0); /* asynch transfer allowed */
- if (blkcnt >= max_xfer_blk)
+ if (blkcnt >= USB_MAX_XFER_BLK)
debug("\n");
return blkcnt;
cap[0] = 2880;
cap[1] = 0x200;
}
+ ss->flags &= ~USB_READY;
USB_STOR_PRINTF("Read Capacity returns: 0x%lx, 0x%lx\n", cap[0],
cap[1]);
#if 0
projects / karo-tx-uboot.git / blobdiff