X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=common%2Fusb_storage.c;h=4aeed827c1e60e624e2ec81857a5cf37ce6e8047;hb=8b029db85916b1332c5f9cae024a91ddbe418b8e;hp=bdc306f587fd9b73b60220d2b49e1151bbf9b4bd;hpb=3ec81d758c09d6887a77a1b1259d044a2905bc8e;p=oweals%2Fu-boot.git diff --git a/common/usb_storage.c b/common/usb_storage.c index bdc306f587..4aeed827c1 100644 --- a/common/usb_storage.c +++ b/common/usb_storage.c @@ -136,6 +136,7 @@ struct us_data { 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 ....... */ @@ -155,11 +156,16 @@ struct us_data { 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]; @@ -693,7 +699,8 @@ int usb_stor_BBB_transport(ccb *srb, struct us_data *us) 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 */ @@ -958,8 +965,10 @@ static int usb_test_unit_ready(ccb *srb, struct us_data *ss) 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); mdelay(100); } while (retries--); @@ -1046,7 +1055,7 @@ static void usb_bin_fixup(struct usb_device_descriptor descriptor, unsigned long usb_stor_read(int device, unsigned long blknr, unsigned long blkcnt, void *buffer) { - unsigned long start, blks, buf_addr, max_xfer_blk; + unsigned long start, blks, buf_addr; unsigned short smallblks; struct usb_device *dev; struct us_data *ss; @@ -1074,12 +1083,6 @@ unsigned long usb_stor_read(int device, unsigned long blknr, 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" " buffer %lx\n", device, start, blks, buf_addr); @@ -1088,14 +1091,12 @@ unsigned long usb_stor_read(int device, unsigned long blknr, /* 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; @@ -1111,12 +1112,13 @@ retry_it: 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", 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; } @@ -1124,7 +1126,7 @@ retry_it: unsigned long usb_stor_write(int device, unsigned long blknr, unsigned long blkcnt, const void *buffer) { - unsigned long start, blks, buf_addr, max_xfer_blk; + unsigned long start, blks, buf_addr; unsigned short smallblks; struct usb_device *dev; struct us_data *ss; @@ -1153,12 +1155,6 @@ unsigned long usb_stor_write(int device, unsigned long blknr, 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" " buffer %lx\n", device, start, blks, buf_addr); @@ -1169,14 +1165,12 @@ unsigned long usb_stor_write(int device, unsigned long blknr, */ 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; @@ -1192,12 +1186,13 @@ retry_it: 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", 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; @@ -1403,6 +1398,7 @@ int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, 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