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https://github.com/brain-hackers/u-boot-brain
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![Sven Schwermer](/assets/img/avatar_default.png)
This fixes link issues when building the SPL without USB driver model but with USB storage support. CONFIG_BLK can be enabled and disabled independently for SPL and non-SPL builds. We leverage that existing functionality here. Signed-off-by: Sven Schwermer <sven@svenschwermer.de>
1562 lines
42 KiB
C
1562 lines
42 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Most of this source has been derived from the Linux USB
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* project:
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* (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
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* (c) 2000 David L. Brown, Jr. (usb-storage@davidb.org)
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* (c) 1999 Michael Gee (michael@linuxspecific.com)
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* (c) 2000 Yggdrasil Computing, Inc.
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*
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*
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* Adapted for U-Boot:
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* (C) Copyright 2001 Denis Peter, MPL AG Switzerland
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* Driver model conversion:
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* (C) Copyright 2015 Google, Inc
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*
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* For BBB support (C) Copyright 2003
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* Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
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*
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* BBB support based on /sys/dev/usb/umass.c from
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* FreeBSD.
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*/
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/* Note:
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* Currently only the CBI transport protocoll has been implemented, and it
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* is only tested with a TEAC USB Floppy. Other Massstorages with CBI or CB
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* transport protocoll may work as well.
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*/
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/*
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* New Note:
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* Support for USB Mass Storage Devices (BBB) has been added. It has
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* only been tested with USB memory sticks.
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*/
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#include <common.h>
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#include <command.h>
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#include <dm.h>
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#include <errno.h>
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#include <mapmem.h>
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#include <memalign.h>
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#include <asm/byteorder.h>
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#include <asm/processor.h>
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#include <dm/device-internal.h>
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#include <dm/lists.h>
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#include <part.h>
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#include <usb.h>
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#undef BBB_COMDAT_TRACE
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#undef BBB_XPORT_TRACE
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#include <scsi.h>
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/* direction table -- this indicates the direction of the data
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* transfer for each command code -- a 1 indicates input
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*/
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static const unsigned char us_direction[256/8] = {
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0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
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0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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#define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1)
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static struct scsi_cmd usb_ccb __aligned(ARCH_DMA_MINALIGN);
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static __u32 CBWTag;
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static int usb_max_devs; /* number of highest available usb device */
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#if !CONFIG_IS_ENABLED(BLK)
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static struct blk_desc usb_dev_desc[USB_MAX_STOR_DEV];
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#endif
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struct us_data;
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typedef int (*trans_cmnd)(struct scsi_cmd *cb, struct us_data *data);
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typedef int (*trans_reset)(struct us_data *data);
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struct us_data {
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struct usb_device *pusb_dev; /* this usb_device */
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unsigned int flags; /* from filter initially */
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# define USB_READY (1 << 0)
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unsigned char ifnum; /* interface number */
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unsigned char ep_in; /* in endpoint */
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unsigned char ep_out; /* out ....... */
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unsigned char ep_int; /* interrupt . */
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unsigned char subclass; /* as in overview */
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unsigned char protocol; /* .............. */
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unsigned char attention_done; /* force attn on first cmd */
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unsigned short ip_data; /* interrupt data */
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int action; /* what to do */
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int ip_wanted; /* needed */
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int *irq_handle; /* for USB int requests */
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unsigned int irqpipe; /* pipe for release_irq */
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unsigned char irqmaxp; /* max packed for irq Pipe */
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unsigned char irqinterval; /* Intervall for IRQ Pipe */
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struct scsi_cmd *srb; /* current srb */
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trans_reset transport_reset; /* reset routine */
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trans_cmnd transport; /* transport routine */
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unsigned short max_xfer_blk; /* maximum transfer blocks */
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};
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#if !CONFIG_IS_ENABLED(BLK)
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static struct us_data usb_stor[USB_MAX_STOR_DEV];
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#endif
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#define USB_STOR_TRANSPORT_GOOD 0
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#define USB_STOR_TRANSPORT_FAILED -1
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#define USB_STOR_TRANSPORT_ERROR -2
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int usb_stor_get_info(struct usb_device *dev, struct us_data *us,
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struct blk_desc *dev_desc);
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int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
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struct us_data *ss);
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#if CONFIG_IS_ENABLED(BLK)
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static unsigned long usb_stor_read(struct udevice *dev, lbaint_t blknr,
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lbaint_t blkcnt, void *buffer);
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static unsigned long usb_stor_write(struct udevice *dev, lbaint_t blknr,
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lbaint_t blkcnt, const void *buffer);
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#else
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static unsigned long usb_stor_read(struct blk_desc *block_dev, lbaint_t blknr,
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lbaint_t blkcnt, void *buffer);
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static unsigned long usb_stor_write(struct blk_desc *block_dev, lbaint_t blknr,
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lbaint_t blkcnt, const void *buffer);
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#endif
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void uhci_show_temp_int_td(void);
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static void usb_show_progress(void)
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{
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debug(".");
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}
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/*******************************************************************************
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* show info on storage devices; 'usb start/init' must be invoked earlier
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* as we only retrieve structures populated during devices initialization
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*/
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int usb_stor_info(void)
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{
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int count = 0;
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#if CONFIG_IS_ENABLED(BLK)
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struct udevice *dev;
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for (blk_first_device(IF_TYPE_USB, &dev);
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dev;
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blk_next_device(&dev)) {
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struct blk_desc *desc = dev_get_uclass_platdata(dev);
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printf(" Device %d: ", desc->devnum);
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dev_print(desc);
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count++;
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}
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#else
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int i;
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if (usb_max_devs > 0) {
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for (i = 0; i < usb_max_devs; i++) {
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printf(" Device %d: ", i);
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dev_print(&usb_dev_desc[i]);
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}
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return 0;
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}
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#endif
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if (!count) {
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printf("No storage devices, perhaps not 'usb start'ed..?\n");
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return 1;
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}
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return 0;
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}
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static unsigned int usb_get_max_lun(struct us_data *us)
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{
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int len;
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ALLOC_CACHE_ALIGN_BUFFER(unsigned char, result, 1);
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len = usb_control_msg(us->pusb_dev,
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usb_rcvctrlpipe(us->pusb_dev, 0),
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US_BBB_GET_MAX_LUN,
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USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
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0, us->ifnum,
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result, sizeof(char),
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USB_CNTL_TIMEOUT * 5);
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debug("Get Max LUN -> len = %i, result = %i\n", len, (int) *result);
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return (len > 0) ? *result : 0;
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}
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static int usb_stor_probe_device(struct usb_device *udev)
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{
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int lun, max_lun;
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#if CONFIG_IS_ENABLED(BLK)
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struct us_data *data;
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int ret;
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#else
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int start;
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if (udev == NULL)
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return -ENOENT; /* no more devices available */
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#endif
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debug("\n\nProbing for storage\n");
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#if CONFIG_IS_ENABLED(BLK)
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/*
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* We store the us_data in the mass storage device's platdata. It
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* is shared by all LUNs (block devices) attached to this mass storage
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* device.
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*/
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data = dev_get_platdata(udev->dev);
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if (!usb_storage_probe(udev, 0, data))
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return 0;
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max_lun = usb_get_max_lun(data);
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for (lun = 0; lun <= max_lun; lun++) {
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struct blk_desc *blkdev;
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struct udevice *dev;
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char str[10];
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snprintf(str, sizeof(str), "lun%d", lun);
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ret = blk_create_devicef(udev->dev, "usb_storage_blk", str,
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IF_TYPE_USB, usb_max_devs, 512, 0,
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&dev);
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if (ret) {
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debug("Cannot bind driver\n");
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return ret;
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}
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blkdev = dev_get_uclass_platdata(dev);
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blkdev->target = 0xff;
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blkdev->lun = lun;
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ret = usb_stor_get_info(udev, data, blkdev);
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if (ret == 1) {
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usb_max_devs++;
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debug("%s: Found device %p\n", __func__, udev);
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} else {
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debug("usb_stor_get_info: Invalid device\n");
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ret = device_unbind(dev);
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if (ret)
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return ret;
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}
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}
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#else
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/* We don't have space to even probe if we hit the maximum */
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if (usb_max_devs == USB_MAX_STOR_DEV) {
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printf("max USB Storage Device reached: %d stopping\n",
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usb_max_devs);
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return -ENOSPC;
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}
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if (!usb_storage_probe(udev, 0, &usb_stor[usb_max_devs]))
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return 0;
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/*
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* OK, it's a storage device. Iterate over its LUNs and populate
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* usb_dev_desc'
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*/
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start = usb_max_devs;
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max_lun = usb_get_max_lun(&usb_stor[usb_max_devs]);
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for (lun = 0; lun <= max_lun && usb_max_devs < USB_MAX_STOR_DEV;
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lun++) {
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struct blk_desc *blkdev;
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blkdev = &usb_dev_desc[usb_max_devs];
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memset(blkdev, '\0', sizeof(struct blk_desc));
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blkdev->if_type = IF_TYPE_USB;
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blkdev->devnum = usb_max_devs;
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blkdev->part_type = PART_TYPE_UNKNOWN;
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blkdev->target = 0xff;
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blkdev->type = DEV_TYPE_UNKNOWN;
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blkdev->block_read = usb_stor_read;
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blkdev->block_write = usb_stor_write;
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blkdev->lun = lun;
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blkdev->priv = udev;
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if (usb_stor_get_info(udev, &usb_stor[start],
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&usb_dev_desc[usb_max_devs]) == 1) {
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debug("partype: %d\n", blkdev->part_type);
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part_init(blkdev);
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debug("partype: %d\n", blkdev->part_type);
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usb_max_devs++;
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debug("%s: Found device %p\n", __func__, udev);
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}
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}
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#endif
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return 0;
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}
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void usb_stor_reset(void)
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{
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usb_max_devs = 0;
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}
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/*******************************************************************************
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* scan the usb and reports device info
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* to the user if mode = 1
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* returns current device or -1 if no
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*/
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int usb_stor_scan(int mode)
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{
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if (mode == 1)
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printf(" scanning usb for storage devices... ");
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#if !CONFIG_IS_ENABLED(DM_USB)
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unsigned char i;
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usb_disable_asynch(1); /* asynch transfer not allowed */
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usb_stor_reset();
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for (i = 0; i < USB_MAX_DEVICE; i++) {
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struct usb_device *dev;
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dev = usb_get_dev_index(i); /* get device */
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debug("i=%d\n", i);
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if (usb_stor_probe_device(dev))
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break;
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} /* for */
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usb_disable_asynch(0); /* asynch transfer allowed */
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#endif
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printf("%d Storage Device(s) found\n", usb_max_devs);
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if (usb_max_devs > 0)
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return 0;
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return -1;
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}
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static int usb_stor_irq(struct usb_device *dev)
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{
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struct us_data *us;
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us = (struct us_data *)dev->privptr;
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if (us->ip_wanted)
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us->ip_wanted = 0;
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return 0;
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}
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#ifdef DEBUG
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static void usb_show_srb(struct scsi_cmd *pccb)
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{
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int i;
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printf("SRB: len %d datalen 0x%lX\n ", pccb->cmdlen, pccb->datalen);
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for (i = 0; i < 12; i++)
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printf("%02X ", pccb->cmd[i]);
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printf("\n");
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}
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static void display_int_status(unsigned long tmp)
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{
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printf("Status: %s %s %s %s %s %s %s\n",
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(tmp & USB_ST_ACTIVE) ? "Active" : "",
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(tmp & USB_ST_STALLED) ? "Stalled" : "",
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(tmp & USB_ST_BUF_ERR) ? "Buffer Error" : "",
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(tmp & USB_ST_BABBLE_DET) ? "Babble Det" : "",
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(tmp & USB_ST_NAK_REC) ? "NAKed" : "",
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(tmp & USB_ST_CRC_ERR) ? "CRC Error" : "",
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(tmp & USB_ST_BIT_ERR) ? "Bitstuff Error" : "");
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}
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#endif
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/***********************************************************************
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* Data transfer routines
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***********************************************************************/
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static int us_one_transfer(struct us_data *us, int pipe, char *buf, int length)
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{
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int max_size;
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int this_xfer;
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int result;
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int partial;
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int maxtry;
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int stat;
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/* determine the maximum packet size for these transfers */
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max_size = usb_maxpacket(us->pusb_dev, pipe) * 16;
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/* while we have data left to transfer */
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while (length) {
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/* calculate how long this will be -- maximum or a remainder */
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this_xfer = length > max_size ? max_size : length;
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length -= this_xfer;
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/* setup the retry counter */
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maxtry = 10;
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/* set up the transfer loop */
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do {
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/* transfer the data */
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debug("Bulk xfer 0x%lx(%d) try #%d\n",
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(ulong)map_to_sysmem(buf), this_xfer,
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11 - maxtry);
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result = usb_bulk_msg(us->pusb_dev, pipe, buf,
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this_xfer, &partial,
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USB_CNTL_TIMEOUT * 5);
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debug("bulk_msg returned %d xferred %d/%d\n",
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result, partial, this_xfer);
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if (us->pusb_dev->status != 0) {
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/* if we stall, we need to clear it before
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* we go on
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*/
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#ifdef DEBUG
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display_int_status(us->pusb_dev->status);
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#endif
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if (us->pusb_dev->status & USB_ST_STALLED) {
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debug("stalled ->clearing endpoint" \
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"halt for pipe 0x%x\n", pipe);
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stat = us->pusb_dev->status;
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usb_clear_halt(us->pusb_dev, pipe);
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us->pusb_dev->status = stat;
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if (this_xfer == partial) {
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debug("bulk transferred" \
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"with error %lX," \
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" but data ok\n",
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us->pusb_dev->status);
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return 0;
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}
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else
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return result;
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}
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if (us->pusb_dev->status & USB_ST_NAK_REC) {
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debug("Device NAKed bulk_msg\n");
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return result;
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}
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debug("bulk transferred with error");
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if (this_xfer == partial) {
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debug(" %ld, but data ok\n",
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us->pusb_dev->status);
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return 0;
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}
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/* if our try counter reaches 0, bail out */
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debug(" %ld, data %d\n",
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us->pusb_dev->status, partial);
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if (!maxtry--)
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return result;
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}
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/* update to show what data was transferred */
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this_xfer -= partial;
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buf += partial;
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/* continue until this transfer is done */
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} while (this_xfer);
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}
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/* if we get here, we're done and successful */
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return 0;
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}
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static int usb_stor_BBB_reset(struct us_data *us)
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{
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int result;
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unsigned int pipe;
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/*
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* Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
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*
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* For Reset Recovery the host shall issue in the following order:
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* a) a Bulk-Only Mass Storage Reset
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* b) a Clear Feature HALT to the Bulk-In endpoint
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* c) a Clear Feature HALT to the Bulk-Out endpoint
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*
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* This is done in 3 steps.
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*
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* If the reset doesn't succeed, the device should be port reset.
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*
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* This comment stolen from FreeBSD's /sys/dev/usb/umass.c.
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*/
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debug("BBB_reset\n");
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result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
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US_BBB_RESET,
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USB_TYPE_CLASS | USB_RECIP_INTERFACE,
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0, us->ifnum, NULL, 0, USB_CNTL_TIMEOUT * 5);
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if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) {
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debug("RESET:stall\n");
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return -1;
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}
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|
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/* long wait for reset */
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mdelay(150);
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debug("BBB_reset result %d: status %lX reset\n",
|
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result, us->pusb_dev->status);
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pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
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result = usb_clear_halt(us->pusb_dev, pipe);
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/* long wait for reset */
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mdelay(150);
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debug("BBB_reset result %d: status %lX clearing IN endpoint\n",
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result, us->pusb_dev->status);
|
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/* long wait for reset */
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pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
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result = usb_clear_halt(us->pusb_dev, pipe);
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mdelay(150);
|
|
debug("BBB_reset result %d: status %lX clearing OUT endpoint\n",
|
|
result, us->pusb_dev->status);
|
|
debug("BBB_reset done\n");
|
|
return 0;
|
|
}
|
|
|
|
/* FIXME: this reset function doesn't really reset the port, and it
|
|
* should. Actually it should probably do what it's doing here, and
|
|
* reset the port physically
|
|
*/
|
|
static int usb_stor_CB_reset(struct us_data *us)
|
|
{
|
|
unsigned char cmd[12];
|
|
int result;
|
|
|
|
debug("CB_reset\n");
|
|
memset(cmd, 0xff, sizeof(cmd));
|
|
cmd[0] = SCSI_SEND_DIAG;
|
|
cmd[1] = 4;
|
|
result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
|
|
US_CBI_ADSC,
|
|
USB_TYPE_CLASS | USB_RECIP_INTERFACE,
|
|
0, us->ifnum, cmd, sizeof(cmd),
|
|
USB_CNTL_TIMEOUT * 5);
|
|
|
|
/* long wait for reset */
|
|
mdelay(1500);
|
|
debug("CB_reset result %d: status %lX clearing endpoint halt\n",
|
|
result, us->pusb_dev->status);
|
|
usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_in));
|
|
usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_out));
|
|
|
|
debug("CB_reset done\n");
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Set up the command for a BBB device. Note that the actual SCSI
|
|
* command is copied into cbw.CBWCDB.
|
|
*/
|
|
static int usb_stor_BBB_comdat(struct scsi_cmd *srb, struct us_data *us)
|
|
{
|
|
int result;
|
|
int actlen;
|
|
int dir_in;
|
|
unsigned int pipe;
|
|
ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_cbw, cbw, 1);
|
|
|
|
dir_in = US_DIRECTION(srb->cmd[0]);
|
|
|
|
#ifdef BBB_COMDAT_TRACE
|
|
printf("dir %d lun %d cmdlen %d cmd %p datalen %lu pdata %p\n",
|
|
dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen,
|
|
srb->pdata);
|
|
if (srb->cmdlen) {
|
|
for (result = 0; result < srb->cmdlen; result++)
|
|
printf("cmd[%d] %#x ", result, srb->cmd[result]);
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
/* sanity checks */
|
|
if (!(srb->cmdlen <= CBWCDBLENGTH)) {
|
|
debug("usb_stor_BBB_comdat:cmdlen too large\n");
|
|
return -1;
|
|
}
|
|
|
|
/* always OUT to the ep */
|
|
pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
|
|
|
|
cbw->dCBWSignature = cpu_to_le32(CBWSIGNATURE);
|
|
cbw->dCBWTag = cpu_to_le32(CBWTag++);
|
|
cbw->dCBWDataTransferLength = cpu_to_le32(srb->datalen);
|
|
cbw->bCBWFlags = (dir_in ? CBWFLAGS_IN : CBWFLAGS_OUT);
|
|
cbw->bCBWLUN = srb->lun;
|
|
cbw->bCDBLength = srb->cmdlen;
|
|
/* copy the command data into the CBW command data buffer */
|
|
/* DST SRC LEN!!! */
|
|
|
|
memcpy(cbw->CBWCDB, srb->cmd, srb->cmdlen);
|
|
result = usb_bulk_msg(us->pusb_dev, pipe, cbw, UMASS_BBB_CBW_SIZE,
|
|
&actlen, USB_CNTL_TIMEOUT * 5);
|
|
if (result < 0)
|
|
debug("usb_stor_BBB_comdat:usb_bulk_msg error\n");
|
|
return result;
|
|
}
|
|
|
|
/* FIXME: we also need a CBI_command which sets up the completion
|
|
* interrupt, and waits for it
|
|
*/
|
|
static int usb_stor_CB_comdat(struct scsi_cmd *srb, struct us_data *us)
|
|
{
|
|
int result = 0;
|
|
int dir_in, retry;
|
|
unsigned int pipe;
|
|
unsigned long status;
|
|
|
|
retry = 5;
|
|
dir_in = US_DIRECTION(srb->cmd[0]);
|
|
|
|
if (dir_in)
|
|
pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
|
|
else
|
|
pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
|
|
|
|
while (retry--) {
|
|
debug("CBI gets a command: Try %d\n", 5 - retry);
|
|
#ifdef DEBUG
|
|
usb_show_srb(srb);
|
|
#endif
|
|
/* let's send the command via the control pipe */
|
|
result = usb_control_msg(us->pusb_dev,
|
|
usb_sndctrlpipe(us->pusb_dev , 0),
|
|
US_CBI_ADSC,
|
|
USB_TYPE_CLASS | USB_RECIP_INTERFACE,
|
|
0, us->ifnum,
|
|
srb->cmd, srb->cmdlen,
|
|
USB_CNTL_TIMEOUT * 5);
|
|
debug("CB_transport: control msg returned %d, status %lX\n",
|
|
result, us->pusb_dev->status);
|
|
/* check the return code for the command */
|
|
if (result < 0) {
|
|
if (us->pusb_dev->status & USB_ST_STALLED) {
|
|
status = us->pusb_dev->status;
|
|
debug(" stall during command found," \
|
|
" clear pipe\n");
|
|
usb_clear_halt(us->pusb_dev,
|
|
usb_sndctrlpipe(us->pusb_dev, 0));
|
|
us->pusb_dev->status = status;
|
|
}
|
|
debug(" error during command %02X" \
|
|
" Stat = %lX\n", srb->cmd[0],
|
|
us->pusb_dev->status);
|
|
return result;
|
|
}
|
|
/* transfer the data payload for this command, if one exists*/
|
|
|
|
debug("CB_transport: control msg returned %d," \
|
|
" direction is %s to go 0x%lx\n", result,
|
|
dir_in ? "IN" : "OUT", srb->datalen);
|
|
if (srb->datalen) {
|
|
result = us_one_transfer(us, pipe, (char *)srb->pdata,
|
|
srb->datalen);
|
|
debug("CBI attempted to transfer data," \
|
|
" result is %d status %lX, len %d\n",
|
|
result, us->pusb_dev->status,
|
|
us->pusb_dev->act_len);
|
|
if (!(us->pusb_dev->status & USB_ST_NAK_REC))
|
|
break;
|
|
} /* if (srb->datalen) */
|
|
else
|
|
break;
|
|
}
|
|
/* return result */
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
static int usb_stor_CBI_get_status(struct scsi_cmd *srb, struct us_data *us)
|
|
{
|
|
int timeout;
|
|
|
|
us->ip_wanted = 1;
|
|
submit_int_msg(us->pusb_dev, us->irqpipe,
|
|
(void *) &us->ip_data, us->irqmaxp, us->irqinterval);
|
|
timeout = 1000;
|
|
while (timeout--) {
|
|
if (us->ip_wanted == 0)
|
|
break;
|
|
mdelay(10);
|
|
}
|
|
if (us->ip_wanted) {
|
|
printf(" Did not get interrupt on CBI\n");
|
|
us->ip_wanted = 0;
|
|
return USB_STOR_TRANSPORT_ERROR;
|
|
}
|
|
debug("Got interrupt data 0x%x, transferred %d status 0x%lX\n",
|
|
us->ip_data, us->pusb_dev->irq_act_len,
|
|
us->pusb_dev->irq_status);
|
|
/* UFI gives us ASC and ASCQ, like a request sense */
|
|
if (us->subclass == US_SC_UFI) {
|
|
if (srb->cmd[0] == SCSI_REQ_SENSE ||
|
|
srb->cmd[0] == SCSI_INQUIRY)
|
|
return USB_STOR_TRANSPORT_GOOD; /* Good */
|
|
else if (us->ip_data)
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
else
|
|
return USB_STOR_TRANSPORT_GOOD;
|
|
}
|
|
/* otherwise, we interpret the data normally */
|
|
switch (us->ip_data) {
|
|
case 0x0001:
|
|
return USB_STOR_TRANSPORT_GOOD;
|
|
case 0x0002:
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
default:
|
|
return USB_STOR_TRANSPORT_ERROR;
|
|
} /* switch */
|
|
return USB_STOR_TRANSPORT_ERROR;
|
|
}
|
|
|
|
#define USB_TRANSPORT_UNKNOWN_RETRY 5
|
|
#define USB_TRANSPORT_NOT_READY_RETRY 10
|
|
|
|
/* clear a stall on an endpoint - special for BBB devices */
|
|
static int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt)
|
|
{
|
|
/* ENDPOINT_HALT = 0, so set value to 0 */
|
|
return usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
|
|
USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 0,
|
|
endpt, NULL, 0, USB_CNTL_TIMEOUT * 5);
|
|
}
|
|
|
|
static int usb_stor_BBB_transport(struct scsi_cmd *srb, struct us_data *us)
|
|
{
|
|
int result, retry;
|
|
int dir_in;
|
|
int actlen, data_actlen;
|
|
unsigned int pipe, pipein, pipeout;
|
|
ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_csw, csw, 1);
|
|
#ifdef BBB_XPORT_TRACE
|
|
unsigned char *ptr;
|
|
int index;
|
|
#endif
|
|
|
|
dir_in = US_DIRECTION(srb->cmd[0]);
|
|
|
|
/* COMMAND phase */
|
|
debug("COMMAND phase\n");
|
|
result = usb_stor_BBB_comdat(srb, us);
|
|
if (result < 0) {
|
|
debug("failed to send CBW status %ld\n",
|
|
us->pusb_dev->status);
|
|
usb_stor_BBB_reset(us);
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
}
|
|
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 */
|
|
data_actlen = 0;
|
|
/* no data, go immediately to the STATUS phase */
|
|
if (srb->datalen == 0)
|
|
goto st;
|
|
debug("DATA phase\n");
|
|
if (dir_in)
|
|
pipe = pipein;
|
|
else
|
|
pipe = pipeout;
|
|
|
|
result = usb_bulk_msg(us->pusb_dev, pipe, srb->pdata, srb->datalen,
|
|
&data_actlen, USB_CNTL_TIMEOUT * 5);
|
|
/* special handling of STALL in DATA phase */
|
|
if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) {
|
|
debug("DATA:stall\n");
|
|
/* clear the STALL on the endpoint */
|
|
result = usb_stor_BBB_clear_endpt_stall(us,
|
|
dir_in ? us->ep_in : us->ep_out);
|
|
if (result >= 0)
|
|
/* continue on to STATUS phase */
|
|
goto st;
|
|
}
|
|
if (result < 0) {
|
|
debug("usb_bulk_msg error status %ld\n",
|
|
us->pusb_dev->status);
|
|
usb_stor_BBB_reset(us);
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
}
|
|
#ifdef BBB_XPORT_TRACE
|
|
for (index = 0; index < data_actlen; index++)
|
|
printf("pdata[%d] %#x ", index, srb->pdata[index]);
|
|
printf("\n");
|
|
#endif
|
|
/* STATUS phase + error handling */
|
|
st:
|
|
retry = 0;
|
|
again:
|
|
debug("STATUS phase\n");
|
|
result = usb_bulk_msg(us->pusb_dev, pipein, csw, UMASS_BBB_CSW_SIZE,
|
|
&actlen, USB_CNTL_TIMEOUT*5);
|
|
|
|
/* special handling of STALL in STATUS phase */
|
|
if ((result < 0) && (retry < 1) &&
|
|
(us->pusb_dev->status & USB_ST_STALLED)) {
|
|
debug("STATUS:stall\n");
|
|
/* clear the STALL on the endpoint */
|
|
result = usb_stor_BBB_clear_endpt_stall(us, us->ep_in);
|
|
if (result >= 0 && (retry++ < 1))
|
|
/* do a retry */
|
|
goto again;
|
|
}
|
|
if (result < 0) {
|
|
debug("usb_bulk_msg error status %ld\n",
|
|
us->pusb_dev->status);
|
|
usb_stor_BBB_reset(us);
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
}
|
|
#ifdef BBB_XPORT_TRACE
|
|
ptr = (unsigned char *)csw;
|
|
for (index = 0; index < UMASS_BBB_CSW_SIZE; index++)
|
|
printf("ptr[%d] %#x ", index, ptr[index]);
|
|
printf("\n");
|
|
#endif
|
|
/* misuse pipe to get the residue */
|
|
pipe = le32_to_cpu(csw->dCSWDataResidue);
|
|
if (pipe == 0 && srb->datalen != 0 && srb->datalen - data_actlen != 0)
|
|
pipe = srb->datalen - data_actlen;
|
|
if (CSWSIGNATURE != le32_to_cpu(csw->dCSWSignature)) {
|
|
debug("!CSWSIGNATURE\n");
|
|
usb_stor_BBB_reset(us);
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
} else if ((CBWTag - 1) != le32_to_cpu(csw->dCSWTag)) {
|
|
debug("!Tag\n");
|
|
usb_stor_BBB_reset(us);
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
} else if (csw->bCSWStatus > CSWSTATUS_PHASE) {
|
|
debug(">PHASE\n");
|
|
usb_stor_BBB_reset(us);
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
} else if (csw->bCSWStatus == CSWSTATUS_PHASE) {
|
|
debug("=PHASE\n");
|
|
usb_stor_BBB_reset(us);
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
} else if (data_actlen > srb->datalen) {
|
|
debug("transferred %dB instead of %ldB\n",
|
|
data_actlen, srb->datalen);
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
} else if (csw->bCSWStatus == CSWSTATUS_FAILED) {
|
|
debug("FAILED\n");
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static int usb_stor_CB_transport(struct scsi_cmd *srb, struct us_data *us)
|
|
{
|
|
int result, status;
|
|
struct scsi_cmd *psrb;
|
|
struct scsi_cmd reqsrb;
|
|
int retry, notready;
|
|
|
|
psrb = &reqsrb;
|
|
status = USB_STOR_TRANSPORT_GOOD;
|
|
retry = 0;
|
|
notready = 0;
|
|
/* issue the command */
|
|
do_retry:
|
|
result = usb_stor_CB_comdat(srb, us);
|
|
debug("command / Data returned %d, status %lX\n",
|
|
result, us->pusb_dev->status);
|
|
/* if this is an CBI Protocol, get IRQ */
|
|
if (us->protocol == US_PR_CBI) {
|
|
status = usb_stor_CBI_get_status(srb, us);
|
|
/* if the status is error, report it */
|
|
if (status == USB_STOR_TRANSPORT_ERROR) {
|
|
debug(" USB CBI Command Error\n");
|
|
return status;
|
|
}
|
|
srb->sense_buf[12] = (unsigned char)(us->ip_data >> 8);
|
|
srb->sense_buf[13] = (unsigned char)(us->ip_data & 0xff);
|
|
if (!us->ip_data) {
|
|
/* if the status is good, report it */
|
|
if (status == USB_STOR_TRANSPORT_GOOD) {
|
|
debug(" USB CBI Command Good\n");
|
|
return status;
|
|
}
|
|
}
|
|
}
|
|
/* do we have to issue an auto request? */
|
|
/* HERE we have to check the result */
|
|
if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) {
|
|
debug("ERROR %lX\n", us->pusb_dev->status);
|
|
us->transport_reset(us);
|
|
return USB_STOR_TRANSPORT_ERROR;
|
|
}
|
|
if ((us->protocol == US_PR_CBI) &&
|
|
((srb->cmd[0] == SCSI_REQ_SENSE) ||
|
|
(srb->cmd[0] == SCSI_INQUIRY))) {
|
|
/* do not issue an autorequest after request sense */
|
|
debug("No auto request and good\n");
|
|
return USB_STOR_TRANSPORT_GOOD;
|
|
}
|
|
/* issue an request_sense */
|
|
memset(&psrb->cmd[0], 0, 12);
|
|
psrb->cmd[0] = SCSI_REQ_SENSE;
|
|
psrb->cmd[1] = srb->lun << 5;
|
|
psrb->cmd[4] = 18;
|
|
psrb->datalen = 18;
|
|
psrb->pdata = &srb->sense_buf[0];
|
|
psrb->cmdlen = 12;
|
|
/* issue the command */
|
|
result = usb_stor_CB_comdat(psrb, us);
|
|
debug("auto request returned %d\n", result);
|
|
/* if this is an CBI Protocol, get IRQ */
|
|
if (us->protocol == US_PR_CBI)
|
|
status = usb_stor_CBI_get_status(psrb, us);
|
|
|
|
if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) {
|
|
debug(" AUTO REQUEST ERROR %ld\n",
|
|
us->pusb_dev->status);
|
|
return USB_STOR_TRANSPORT_ERROR;
|
|
}
|
|
debug("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n",
|
|
srb->sense_buf[0], srb->sense_buf[2],
|
|
srb->sense_buf[12], srb->sense_buf[13]);
|
|
/* Check the auto request result */
|
|
if ((srb->sense_buf[2] == 0) &&
|
|
(srb->sense_buf[12] == 0) &&
|
|
(srb->sense_buf[13] == 0)) {
|
|
/* ok, no sense */
|
|
return USB_STOR_TRANSPORT_GOOD;
|
|
}
|
|
|
|
/* Check the auto request result */
|
|
switch (srb->sense_buf[2]) {
|
|
case 0x01:
|
|
/* Recovered Error */
|
|
return USB_STOR_TRANSPORT_GOOD;
|
|
break;
|
|
case 0x02:
|
|
/* Not Ready */
|
|
if (notready++ > USB_TRANSPORT_NOT_READY_RETRY) {
|
|
printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
|
|
" 0x%02X (NOT READY)\n", srb->cmd[0],
|
|
srb->sense_buf[0], srb->sense_buf[2],
|
|
srb->sense_buf[12], srb->sense_buf[13]);
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
} else {
|
|
mdelay(100);
|
|
goto do_retry;
|
|
}
|
|
break;
|
|
default:
|
|
if (retry++ > USB_TRANSPORT_UNKNOWN_RETRY) {
|
|
printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
|
|
" 0x%02X\n", srb->cmd[0], srb->sense_buf[0],
|
|
srb->sense_buf[2], srb->sense_buf[12],
|
|
srb->sense_buf[13]);
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
} else
|
|
goto do_retry;
|
|
break;
|
|
}
|
|
return USB_STOR_TRANSPORT_FAILED;
|
|
}
|
|
|
|
static void usb_stor_set_max_xfer_blk(struct usb_device *udev,
|
|
struct us_data *us)
|
|
{
|
|
unsigned short blk;
|
|
size_t __maybe_unused size;
|
|
int __maybe_unused ret;
|
|
|
|
#if !CONFIG_IS_ENABLED(DM_USB)
|
|
#ifdef CONFIG_USB_EHCI_HCD
|
|
/*
|
|
* 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.
|
|
*/
|
|
blk = USHRT_MAX;
|
|
#else
|
|
blk = 20;
|
|
#endif
|
|
#else
|
|
ret = usb_get_max_xfer_size(udev, (size_t *)&size);
|
|
if (ret < 0) {
|
|
/* unimplemented, let's use default 20 */
|
|
blk = 20;
|
|
} else {
|
|
if (size > USHRT_MAX * 512)
|
|
size = USHRT_MAX * 512;
|
|
blk = size / 512;
|
|
}
|
|
#endif
|
|
|
|
us->max_xfer_blk = blk;
|
|
}
|
|
|
|
static int usb_inquiry(struct scsi_cmd *srb, struct us_data *ss)
|
|
{
|
|
int retry, i;
|
|
retry = 5;
|
|
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;
|
|
i = ss->transport(srb, ss);
|
|
debug("inquiry returns %d\n", i);
|
|
if (i == 0)
|
|
break;
|
|
} while (--retry);
|
|
|
|
if (!retry) {
|
|
printf("error in inquiry\n");
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int usb_request_sense(struct scsi_cmd *srb, struct us_data *ss)
|
|
{
|
|
char *ptr;
|
|
|
|
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];
|
|
srb->cmdlen = 12;
|
|
ss->transport(srb, ss);
|
|
debug("Request Sense returned %02X %02X %02X\n",
|
|
srb->sense_buf[2], srb->sense_buf[12],
|
|
srb->sense_buf[13]);
|
|
srb->pdata = (uchar *)ptr;
|
|
return 0;
|
|
}
|
|
|
|
static int usb_test_unit_ready(struct scsi_cmd *srb, struct us_data *ss)
|
|
{
|
|
int retries = 10;
|
|
|
|
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) {
|
|
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--);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int usb_read_capacity(struct scsi_cmd *srb, struct us_data *ss)
|
|
{
|
|
int retry;
|
|
/* XXX retries */
|
|
retry = 3;
|
|
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)
|
|
return 0;
|
|
} while (retry--);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int usb_read_10(struct scsi_cmd *srb, struct us_data *ss,
|
|
unsigned long start, unsigned short blocks)
|
|
{
|
|
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;
|
|
srb->cmd[5] = ((unsigned char) (start)) & 0xff;
|
|
srb->cmd[7] = ((unsigned char) (blocks >> 8)) & 0xff;
|
|
srb->cmd[8] = (unsigned char) blocks & 0xff;
|
|
srb->cmdlen = 12;
|
|
debug("read10: start %lx blocks %x\n", start, blocks);
|
|
return ss->transport(srb, ss);
|
|
}
|
|
|
|
static int usb_write_10(struct scsi_cmd *srb, struct us_data *ss,
|
|
unsigned long start, unsigned short blocks)
|
|
{
|
|
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;
|
|
srb->cmd[5] = ((unsigned char) (start)) & 0xff;
|
|
srb->cmd[7] = ((unsigned char) (blocks >> 8)) & 0xff;
|
|
srb->cmd[8] = (unsigned char) blocks & 0xff;
|
|
srb->cmdlen = 12;
|
|
debug("write10: start %lx blocks %x\n", start, blocks);
|
|
return ss->transport(srb, ss);
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_USB_BIN_FIXUP
|
|
/*
|
|
* Some USB storage devices queried for SCSI identification data respond with
|
|
* binary strings, which if output to the console freeze the terminal. The
|
|
* workaround is to modify the vendor and product strings read from such
|
|
* device with proper values (as reported by 'usb info').
|
|
*
|
|
* Vendor and product length limits are taken from the definition of
|
|
* struct blk_desc in include/part.h.
|
|
*/
|
|
static void usb_bin_fixup(struct usb_device_descriptor descriptor,
|
|
unsigned char vendor[],
|
|
unsigned char product[]) {
|
|
const unsigned char max_vendor_len = 40;
|
|
const unsigned char max_product_len = 20;
|
|
if (descriptor.idVendor == 0x0424 && descriptor.idProduct == 0x223a) {
|
|
strncpy((char *)vendor, "SMSC", max_vendor_len);
|
|
strncpy((char *)product, "Flash Media Cntrller",
|
|
max_product_len);
|
|
}
|
|
}
|
|
#endif /* CONFIG_USB_BIN_FIXUP */
|
|
|
|
#if CONFIG_IS_ENABLED(BLK)
|
|
static unsigned long usb_stor_read(struct udevice *dev, lbaint_t blknr,
|
|
lbaint_t blkcnt, void *buffer)
|
|
#else
|
|
static unsigned long usb_stor_read(struct blk_desc *block_dev, lbaint_t blknr,
|
|
lbaint_t blkcnt, void *buffer)
|
|
#endif
|
|
{
|
|
lbaint_t start, blks;
|
|
uintptr_t buf_addr;
|
|
unsigned short smallblks;
|
|
struct usb_device *udev;
|
|
struct us_data *ss;
|
|
int retry;
|
|
struct scsi_cmd *srb = &usb_ccb;
|
|
#if CONFIG_IS_ENABLED(BLK)
|
|
struct blk_desc *block_dev;
|
|
#endif
|
|
|
|
if (blkcnt == 0)
|
|
return 0;
|
|
/* Setup device */
|
|
#if CONFIG_IS_ENABLED(BLK)
|
|
block_dev = dev_get_uclass_platdata(dev);
|
|
udev = dev_get_parent_priv(dev_get_parent(dev));
|
|
debug("\nusb_read: udev %d\n", block_dev->devnum);
|
|
#else
|
|
debug("\nusb_read: udev %d\n", block_dev->devnum);
|
|
udev = usb_dev_desc[block_dev->devnum].priv;
|
|
if (!udev) {
|
|
debug("%s: No device\n", __func__);
|
|
return 0;
|
|
}
|
|
#endif
|
|
ss = (struct us_data *)udev->privptr;
|
|
|
|
usb_disable_asynch(1); /* asynch transfer not allowed */
|
|
srb->lun = block_dev->lun;
|
|
buf_addr = (uintptr_t)buffer;
|
|
start = blknr;
|
|
blks = blkcnt;
|
|
|
|
debug("\nusb_read: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
|
|
block_dev->devnum, start, blks, buf_addr);
|
|
|
|
do {
|
|
/* XXX need some comment here */
|
|
retry = 2;
|
|
srb->pdata = (unsigned char *)buf_addr;
|
|
if (blks > ss->max_xfer_blk)
|
|
smallblks = ss->max_xfer_blk;
|
|
else
|
|
smallblks = (unsigned short) blks;
|
|
retry_it:
|
|
if (smallblks == ss->max_xfer_blk)
|
|
usb_show_progress();
|
|
srb->datalen = block_dev->blksz * smallblks;
|
|
srb->pdata = (unsigned char *)buf_addr;
|
|
if (usb_read_10(srb, ss, start, smallblks)) {
|
|
debug("Read ERROR\n");
|
|
usb_request_sense(srb, ss);
|
|
if (retry--)
|
|
goto retry_it;
|
|
blkcnt -= blks;
|
|
break;
|
|
}
|
|
start += smallblks;
|
|
blks -= smallblks;
|
|
buf_addr += srb->datalen;
|
|
} while (blks != 0);
|
|
ss->flags &= ~USB_READY;
|
|
|
|
debug("usb_read: end startblk " LBAF ", blccnt %x buffer %lx\n",
|
|
start, smallblks, buf_addr);
|
|
|
|
usb_disable_asynch(0); /* asynch transfer allowed */
|
|
if (blkcnt >= ss->max_xfer_blk)
|
|
debug("\n");
|
|
return blkcnt;
|
|
}
|
|
|
|
#if CONFIG_IS_ENABLED(BLK)
|
|
static unsigned long usb_stor_write(struct udevice *dev, lbaint_t blknr,
|
|
lbaint_t blkcnt, const void *buffer)
|
|
#else
|
|
static unsigned long usb_stor_write(struct blk_desc *block_dev, lbaint_t blknr,
|
|
lbaint_t blkcnt, const void *buffer)
|
|
#endif
|
|
{
|
|
lbaint_t start, blks;
|
|
uintptr_t buf_addr;
|
|
unsigned short smallblks;
|
|
struct usb_device *udev;
|
|
struct us_data *ss;
|
|
int retry;
|
|
struct scsi_cmd *srb = &usb_ccb;
|
|
#if CONFIG_IS_ENABLED(BLK)
|
|
struct blk_desc *block_dev;
|
|
#endif
|
|
|
|
if (blkcnt == 0)
|
|
return 0;
|
|
|
|
/* Setup device */
|
|
#if CONFIG_IS_ENABLED(BLK)
|
|
block_dev = dev_get_uclass_platdata(dev);
|
|
udev = dev_get_parent_priv(dev_get_parent(dev));
|
|
debug("\nusb_read: udev %d\n", block_dev->devnum);
|
|
#else
|
|
debug("\nusb_read: udev %d\n", block_dev->devnum);
|
|
udev = usb_dev_desc[block_dev->devnum].priv;
|
|
if (!udev) {
|
|
debug("%s: No device\n", __func__);
|
|
return 0;
|
|
}
|
|
#endif
|
|
ss = (struct us_data *)udev->privptr;
|
|
|
|
usb_disable_asynch(1); /* asynch transfer not allowed */
|
|
|
|
srb->lun = block_dev->lun;
|
|
buf_addr = (uintptr_t)buffer;
|
|
start = blknr;
|
|
blks = blkcnt;
|
|
|
|
debug("\nusb_write: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
|
|
block_dev->devnum, start, blks, buf_addr);
|
|
|
|
do {
|
|
/* If write fails retry for max retry count else
|
|
* return with number of blocks written successfully.
|
|
*/
|
|
retry = 2;
|
|
srb->pdata = (unsigned char *)buf_addr;
|
|
if (blks > ss->max_xfer_blk)
|
|
smallblks = ss->max_xfer_blk;
|
|
else
|
|
smallblks = (unsigned short) blks;
|
|
retry_it:
|
|
if (smallblks == ss->max_xfer_blk)
|
|
usb_show_progress();
|
|
srb->datalen = block_dev->blksz * smallblks;
|
|
srb->pdata = (unsigned char *)buf_addr;
|
|
if (usb_write_10(srb, ss, start, smallblks)) {
|
|
debug("Write ERROR\n");
|
|
usb_request_sense(srb, ss);
|
|
if (retry--)
|
|
goto retry_it;
|
|
blkcnt -= blks;
|
|
break;
|
|
}
|
|
start += smallblks;
|
|
blks -= smallblks;
|
|
buf_addr += srb->datalen;
|
|
} while (blks != 0);
|
|
ss->flags &= ~USB_READY;
|
|
|
|
debug("usb_write: end startblk " LBAF ", blccnt %x buffer %lx\n",
|
|
start, smallblks, buf_addr);
|
|
|
|
usb_disable_asynch(0); /* asynch transfer allowed */
|
|
if (blkcnt >= ss->max_xfer_blk)
|
|
debug("\n");
|
|
return blkcnt;
|
|
|
|
}
|
|
|
|
/* Probe to see if a new device is actually a Storage device */
|
|
int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
|
|
struct us_data *ss)
|
|
{
|
|
struct usb_interface *iface;
|
|
int i;
|
|
struct usb_endpoint_descriptor *ep_desc;
|
|
unsigned int flags = 0;
|
|
|
|
/* let's examine the device now */
|
|
iface = &dev->config.if_desc[ifnum];
|
|
|
|
if (dev->descriptor.bDeviceClass != 0 ||
|
|
iface->desc.bInterfaceClass != USB_CLASS_MASS_STORAGE ||
|
|
iface->desc.bInterfaceSubClass < US_SC_MIN ||
|
|
iface->desc.bInterfaceSubClass > US_SC_MAX) {
|
|
debug("Not mass storage\n");
|
|
/* if it's not a mass storage, we go no further */
|
|
return 0;
|
|
}
|
|
|
|
memset(ss, 0, sizeof(struct us_data));
|
|
|
|
/* At this point, we know we've got a live one */
|
|
debug("\n\nUSB Mass Storage device detected\n");
|
|
|
|
/* Initialize the us_data structure with some useful info */
|
|
ss->flags = flags;
|
|
ss->ifnum = ifnum;
|
|
ss->pusb_dev = dev;
|
|
ss->attention_done = 0;
|
|
ss->subclass = iface->desc.bInterfaceSubClass;
|
|
ss->protocol = iface->desc.bInterfaceProtocol;
|
|
|
|
/* set the handler pointers based on the protocol */
|
|
debug("Transport: ");
|
|
switch (ss->protocol) {
|
|
case US_PR_CB:
|
|
debug("Control/Bulk\n");
|
|
ss->transport = usb_stor_CB_transport;
|
|
ss->transport_reset = usb_stor_CB_reset;
|
|
break;
|
|
|
|
case US_PR_CBI:
|
|
debug("Control/Bulk/Interrupt\n");
|
|
ss->transport = usb_stor_CB_transport;
|
|
ss->transport_reset = usb_stor_CB_reset;
|
|
break;
|
|
case US_PR_BULK:
|
|
debug("Bulk/Bulk/Bulk\n");
|
|
ss->transport = usb_stor_BBB_transport;
|
|
ss->transport_reset = usb_stor_BBB_reset;
|
|
break;
|
|
default:
|
|
printf("USB Storage Transport unknown / not yet implemented\n");
|
|
return 0;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* We are expecting a minimum of 2 endpoints - in and out (bulk).
|
|
* An optional interrupt is OK (necessary for CBI protocol).
|
|
* We will ignore any others.
|
|
*/
|
|
for (i = 0; i < iface->desc.bNumEndpoints; i++) {
|
|
ep_desc = &iface->ep_desc[i];
|
|
/* is it an BULK endpoint? */
|
|
if ((ep_desc->bmAttributes &
|
|
USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) {
|
|
if (ep_desc->bEndpointAddress & USB_DIR_IN)
|
|
ss->ep_in = ep_desc->bEndpointAddress &
|
|
USB_ENDPOINT_NUMBER_MASK;
|
|
else
|
|
ss->ep_out =
|
|
ep_desc->bEndpointAddress &
|
|
USB_ENDPOINT_NUMBER_MASK;
|
|
}
|
|
|
|
/* is it an interrupt endpoint? */
|
|
if ((ep_desc->bmAttributes &
|
|
USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) {
|
|
ss->ep_int = ep_desc->bEndpointAddress &
|
|
USB_ENDPOINT_NUMBER_MASK;
|
|
ss->irqinterval = ep_desc->bInterval;
|
|
}
|
|
}
|
|
debug("Endpoints In %d Out %d Int %d\n",
|
|
ss->ep_in, ss->ep_out, ss->ep_int);
|
|
|
|
/* Do some basic sanity checks, and bail if we find a problem */
|
|
if (usb_set_interface(dev, iface->desc.bInterfaceNumber, 0) ||
|
|
!ss->ep_in || !ss->ep_out ||
|
|
(ss->protocol == US_PR_CBI && ss->ep_int == 0)) {
|
|
debug("Problems with device\n");
|
|
return 0;
|
|
}
|
|
/* set class specific stuff */
|
|
/* We only handle certain protocols. Currently, these are
|
|
* the only ones.
|
|
* The SFF8070 accepts the requests used in u-boot
|
|
*/
|
|
if (ss->subclass != US_SC_UFI && ss->subclass != US_SC_SCSI &&
|
|
ss->subclass != US_SC_8070) {
|
|
printf("Sorry, protocol %d not yet supported.\n", ss->subclass);
|
|
return 0;
|
|
}
|
|
if (ss->ep_int) {
|
|
/* we had found an interrupt endpoint, prepare irq pipe
|
|
* set up the IRQ pipe and handler
|
|
*/
|
|
ss->irqinterval = (ss->irqinterval > 0) ? ss->irqinterval : 255;
|
|
ss->irqpipe = usb_rcvintpipe(ss->pusb_dev, ss->ep_int);
|
|
ss->irqmaxp = usb_maxpacket(dev, ss->irqpipe);
|
|
dev->irq_handle = usb_stor_irq;
|
|
}
|
|
|
|
/* Set the maximum transfer size per host controller setting */
|
|
usb_stor_set_max_xfer_blk(dev, ss);
|
|
|
|
dev->privptr = (void *)ss;
|
|
return 1;
|
|
}
|
|
|
|
int usb_stor_get_info(struct usb_device *dev, struct us_data *ss,
|
|
struct blk_desc *dev_desc)
|
|
{
|
|
unsigned char perq, modi;
|
|
ALLOC_CACHE_ALIGN_BUFFER(u32, cap, 2);
|
|
ALLOC_CACHE_ALIGN_BUFFER(u8, usb_stor_buf, 36);
|
|
u32 capacity, blksz;
|
|
struct scsi_cmd *pccb = &usb_ccb;
|
|
|
|
pccb->pdata = usb_stor_buf;
|
|
|
|
dev_desc->target = dev->devnum;
|
|
pccb->lun = dev_desc->lun;
|
|
debug(" address %d\n", dev_desc->target);
|
|
|
|
if (usb_inquiry(pccb, ss)) {
|
|
debug("%s: usb_inquiry() failed\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
perq = usb_stor_buf[0];
|
|
modi = usb_stor_buf[1];
|
|
|
|
/*
|
|
* Skip unknown devices (0x1f) and enclosure service devices (0x0d),
|
|
* they would not respond to test_unit_ready .
|
|
*/
|
|
if (((perq & 0x1f) == 0x1f) || ((perq & 0x1f) == 0x0d)) {
|
|
debug("%s: unknown/unsupported device\n", __func__);
|
|
return 0;
|
|
}
|
|
if ((modi&0x80) == 0x80) {
|
|
/* drive is removable */
|
|
dev_desc->removable = 1;
|
|
}
|
|
memcpy(dev_desc->vendor, (const void *)&usb_stor_buf[8], 8);
|
|
memcpy(dev_desc->product, (const void *)&usb_stor_buf[16], 16);
|
|
memcpy(dev_desc->revision, (const void *)&usb_stor_buf[32], 4);
|
|
dev_desc->vendor[8] = 0;
|
|
dev_desc->product[16] = 0;
|
|
dev_desc->revision[4] = 0;
|
|
#ifdef CONFIG_USB_BIN_FIXUP
|
|
usb_bin_fixup(dev->descriptor, (uchar *)dev_desc->vendor,
|
|
(uchar *)dev_desc->product);
|
|
#endif /* CONFIG_USB_BIN_FIXUP */
|
|
debug("ISO Vers %X, Response Data %X\n", usb_stor_buf[2],
|
|
usb_stor_buf[3]);
|
|
if (usb_test_unit_ready(pccb, ss)) {
|
|
printf("Device NOT ready\n"
|
|
" Request Sense returned %02X %02X %02X\n",
|
|
pccb->sense_buf[2], pccb->sense_buf[12],
|
|
pccb->sense_buf[13]);
|
|
if (dev_desc->removable == 1)
|
|
dev_desc->type = perq;
|
|
return 0;
|
|
}
|
|
pccb->pdata = (unsigned char *)cap;
|
|
memset(pccb->pdata, 0, 8);
|
|
if (usb_read_capacity(pccb, ss) != 0) {
|
|
printf("READ_CAP ERROR\n");
|
|
cap[0] = 2880;
|
|
cap[1] = 0x200;
|
|
}
|
|
ss->flags &= ~USB_READY;
|
|
debug("Read Capacity returns: 0x%08x, 0x%08x\n", cap[0], cap[1]);
|
|
#if 0
|
|
if (cap[0] > (0x200000 * 10)) /* greater than 10 GByte */
|
|
cap[0] >>= 16;
|
|
|
|
cap[0] = cpu_to_be32(cap[0]);
|
|
cap[1] = cpu_to_be32(cap[1]);
|
|
#endif
|
|
|
|
capacity = be32_to_cpu(cap[0]) + 1;
|
|
blksz = be32_to_cpu(cap[1]);
|
|
|
|
debug("Capacity = 0x%08x, blocksz = 0x%08x\n", capacity, blksz);
|
|
dev_desc->lba = capacity;
|
|
dev_desc->blksz = blksz;
|
|
dev_desc->log2blksz = LOG2(dev_desc->blksz);
|
|
dev_desc->type = perq;
|
|
debug(" address %d\n", dev_desc->target);
|
|
|
|
return 1;
|
|
}
|
|
|
|
#if CONFIG_IS_ENABLED(DM_USB)
|
|
|
|
static int usb_mass_storage_probe(struct udevice *dev)
|
|
{
|
|
struct usb_device *udev = dev_get_parent_priv(dev);
|
|
int ret;
|
|
|
|
usb_disable_asynch(1); /* asynch transfer not allowed */
|
|
ret = usb_stor_probe_device(udev);
|
|
usb_disable_asynch(0); /* asynch transfer allowed */
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct udevice_id usb_mass_storage_ids[] = {
|
|
{ .compatible = "usb-mass-storage" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(usb_mass_storage) = {
|
|
.name = "usb_mass_storage",
|
|
.id = UCLASS_MASS_STORAGE,
|
|
.of_match = usb_mass_storage_ids,
|
|
.probe = usb_mass_storage_probe,
|
|
#if CONFIG_IS_ENABLED(BLK)
|
|
.platdata_auto_alloc_size = sizeof(struct us_data),
|
|
#endif
|
|
};
|
|
|
|
UCLASS_DRIVER(usb_mass_storage) = {
|
|
.id = UCLASS_MASS_STORAGE,
|
|
.name = "usb_mass_storage",
|
|
};
|
|
|
|
static const struct usb_device_id mass_storage_id_table[] = {
|
|
{
|
|
.match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
|
|
.bInterfaceClass = USB_CLASS_MASS_STORAGE
|
|
},
|
|
{ } /* Terminating entry */
|
|
};
|
|
|
|
U_BOOT_USB_DEVICE(usb_mass_storage, mass_storage_id_table);
|
|
#endif
|
|
|
|
#if CONFIG_IS_ENABLED(BLK)
|
|
static const struct blk_ops usb_storage_ops = {
|
|
.read = usb_stor_read,
|
|
.write = usb_stor_write,
|
|
};
|
|
|
|
U_BOOT_DRIVER(usb_storage_blk) = {
|
|
.name = "usb_storage_blk",
|
|
.id = UCLASS_BLK,
|
|
.ops = &usb_storage_ops,
|
|
};
|
|
#else
|
|
U_BOOT_LEGACY_BLK(usb) = {
|
|
.if_typename = "usb",
|
|
.if_type = IF_TYPE_USB,
|
|
.max_devs = USB_MAX_STOR_DEV,
|
|
.desc = usb_dev_desc,
|
|
};
|
|
#endif
|