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91f2dc9a167a39ff418986f7f494cbf38989ccfe
FireBee_SVN/sources/usb_storage.c
Ørn E. Hansen cf397f08c6 Check in code that compiles
2013-04-20 22:10:37 +00:00

1670 lines
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/*
* Most of this source has been derived from the Linux USB
* project:
* (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
* (c) 2000 David L. Brown, Jr. (usb-storage@davidb.org)
* (c) 1999 Michael Gee (michael@linuxspecific.com)
* (c) 2000 Yggdrasil Computing, Inc.
*
*
* Adapted for U-Boot:
* (C) Copyright 2001 Denis Peter, MPL AG Switzerland
*
* For BBB support (C) Copyright 2003
* Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
*
* BBB support based on /sys/dev/usb/umass.c from
* FreeBSD.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
/* Note:
* Currently only the CBI transport protocoll has been implemented, and it
* is only tested with a TEAC USB Floppy. Other Massstorages with CBI or CB
* transport protocoll may work as well.
*/
/*
* New Note:
* Support for USB Mass Storage Devices (BBB) has been added. It has
* only been tested with USB memory sticks.
*/
#include "config.h"
#include "usb.h"
#include "scsi.h"
#define CONFIG_USB_WRITE_ENABLE
#undef USB_STOR_DEBUG
#undef BBB_COMDAT_TRACE
#undef BBB_XPORT_TRACE
#if defined(CONFIG_USB_UHCI) || defined(CONFIG_USB_OHCI) || defined(CONFIG_USB_EHCI)
#ifdef CONFIG_USB_STORAGE
#ifdef USB_STOR_DEBUG
#define USB_STOR_PRINTF(fmt, args...) board_printf(fmt , ##args)
#else
#define USB_STOR_PRINTF(fmt, args...)
#endif
extern void udelay(long usec);
extern long install_usb_stor(int dev_num, unsigned long part_type, unsigned long part_offset, unsigned long part_size, char *vendor, char *revision, char *product);
extern void uninstall_usb_stor(int dev_num);
/* direction table -- this indicates the direction of the data
* transfer for each command code -- a 1 indicates input
*/
unsigned char us_direction[256/8] = {
0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
#define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1)
static unsigned char *usb_stor_buf;
static ccb usb_ccb;
static short drive_ok_usb;
/*
* CBI style
*/
#define US_CBI_ADSC 0
/*
* BULK only
*/
#define US_BBB_RESET 0xff
#define US_BBB_GET_MAX_LUN 0xfe
/* Command Block Wrapper */
typedef struct {
__u32 dCBWSignature;
# define CBWSIGNATURE 0x43425355
__u32 dCBWTag;
__u32 dCBWDataTransferLength;
__u8 bCBWFlags;
# define CBWFLAGS_OUT 0x00
# define CBWFLAGS_IN 0x80
__u8 bCBWLUN;
__u8 bCDBLength;
# define CBWCDBLENGTH 16
__u8 CBWCDB[CBWCDBLENGTH];
} umass_bbb_cbw_t;
#define UMASS_BBB_CBW_SIZE 31
static __u32 CBWTag;
/* Command Status Wrapper */
typedef struct {
__u32 dCSWSignature;
# define CSWSIGNATURE 0x53425355
__u32 dCSWTag;
__u32 dCSWDataResidue;
__u8 bCSWStatus;
# define CSWSTATUS_GOOD 0x0
# define CSWSTATUS_FAILED 0x1
# define CSWSTATUS_PHASE 0x2
} umass_bbb_csw_t;
#define UMASS_BBB_CSW_SIZE 13
#define USB_MAX_STOR_DEV 5
static int usb_max_devs; /* number of highest available usb device */
static block_dev_desc_t usb_dev_desc[USB_MAX_STOR_DEV];
struct us_data;
typedef int (*trans_cmnd)(ccb *cb, struct us_data *data);
typedef int (*trans_reset)(struct us_data *data);
struct us_data {
struct usb_device *pusb_dev; /* this usb_device */
unsigned int flags; /* from filter initially */
unsigned char ifnum; /* interface number */
unsigned char ep_in; /* in endpoint */
unsigned char ep_out; /* out ....... */
unsigned char ep_int; /* interrupt . */
unsigned char subclass; /* as in overview */
unsigned char protocol; /* .............. */
unsigned char attention_done; /* force attn on first cmd */
unsigned short ip_data; /* interrupt data */
int action; /* what to do */
int ip_wanted; /* needed */
int *irq_handle; /* for USB int requests */
unsigned int irqpipe; /* pipe for release_irq */
unsigned char irqmaxp; /* max packed for irq Pipe */
unsigned char irqinterval; /* Intervall for IRQ Pipe */
ccb *srb; /* current srb */
trans_reset transport_reset; /* reset routine */
trans_cmnd transport; /* transport routine */
};
static struct us_data usb_stor[USB_MAX_STOR_DEV];
#define USB_STOR_TRANSPORT_GOOD 0
#define USB_STOR_TRANSPORT_FAILED -1
#define USB_STOR_TRANSPORT_ERROR -2
#define DEFAULT_SECTOR_SIZE 512
#define GEMDOS_PART_TBL_OFFSET 0x1c6
#define DOS_PART_TBL_OFFSET 0x1be
#define DOS_PART_MAGIC_OFFSET 0x1fe
#define DOS_PBR_FSTYPE_OFFSET 0x36
#define DOS_PBR_MEDIA_TYPE_OFFSET 0x15
#define DOS_MBR 0
#define DOS_PBR 1
#define DOS_FS_TYPE_OFFSET 0x36
typedef struct gemdos_partition {
unsigned char boot_ind; /* 0x01 - active */
unsigned char id[3]; /* partition type */
unsigned char start4[4]; /* starting sector counting from 0 */
unsigned char size4[4]; /* nr of sectors in partition */
} gemdos_partition_t;
typedef struct dos_partition {
unsigned char boot_ind; /* 0x80 - active */
unsigned char head; /* starting head */
unsigned char sector; /* starting sector */
unsigned char cyl; /* starting cylinder */
unsigned char sys_ind; /* What partition type */
unsigned char end_head; /* end head */
unsigned char end_sector; /* end sector */
unsigned char end_cyl; /* end cylinder */
unsigned char start4[4]; /* starting sector counting from 0 */
unsigned char size4[4]; /* nr of sectors in partition */
} dos_partition_t;
typedef struct disk_partition {
unsigned long type;
unsigned long start; /* # of first block in partition */
unsigned long size; /* number of blocks in partition */
unsigned long blksz; /* block size in bytes */
} disk_partition_t;
extern unsigned long swap_long(unsigned long val);
#define le32_to_int(a) (int)swap_long(*(unsigned long *)a)
int usb_stor_get_info(struct usb_device *dev, struct us_data *us, block_dev_desc_t *dev_desc);
int usb_storage_probe(struct usb_device *dev, unsigned int ifnum, struct us_data *ss);
long usb_stor_read(int device, unsigned long blknr, unsigned long blkcnt, void *buffer);
long usb_stor_write(int device, unsigned long blknr, unsigned long blkcnt, const void *buffer);
void uhci_show_temp_int_td(void);
block_dev_desc_t *usb_stor_get_dev(int index)
{
return(index < USB_MAX_STOR_DEV) ? &usb_dev_desc[index] : NULL;
}
void init_part(block_dev_desc_t *dev_desc)
{
int i;
unsigned char *buffer = (unsigned char *)usb_malloc(DEFAULT_SECTOR_SIZE);
unsigned short *p = (unsigned short *)buffer;
unsigned short sum;
if(buffer == NULL)
return;
if(dev_desc->block_read(dev_desc->dev, 0, 1, (unsigned long *)buffer) != 1)
{
usb_free(buffer);
return;
}
#ifdef USB_STOR_DEBUG
for(i = 0; i < DEFAULT_SECTOR_SIZE; i++)
{
if((i & 15) == 0)
board_printf("\r\n%04X ", i);
board_printf("%02X ", buffer[i]);
if((i & 15) == 15)
{
int k;
for(k = i-15; k <= i; k++)
{
if(buffer[k] < ' ' || buffer[k] >= 127)
board_printf(".");
else
board_printf("%c", buffer[k]);
}
}
}
board_printf("\r\n");
#endif
sum = 0;
for(i = 0; i < DEFAULT_SECTOR_SIZE/2; i++)
sum += *p++;
if(sum == 0x1234)
{
dev_desc->part_type = PART_TYPE_GEMDOS;
USB_STOR_PRINTF("GEMDOS partition table found\r\n");
}
else if((buffer[DOS_PART_MAGIC_OFFSET] == 0x55) && (buffer[DOS_PART_MAGIC_OFFSET + 1] == 0xaa))
{
dev_desc->part_type = PART_TYPE_DOS;
USB_STOR_PRINTF("DOS partition table found\r\n");
}
usb_free(buffer);
}
static inline int is_extended(int part_type)
{
return(part_type == 0x5 || part_type == 0xf || part_type == 0x85);
}
/* Print a partition that is relative to its Extended partition table
*/
static int get_partition_info_extended(block_dev_desc_t *dev_desc, int ext_part_sector, int relative, int part_num, int which_part, disk_partition_t *info)
{
int i;
gemdos_partition_t *gpt;
dos_partition_t *pt;
unsigned char *buffer = (unsigned char *)usb_malloc(DEFAULT_SECTOR_SIZE);
if(buffer == NULL)
return -1;
if(dev_desc->block_read(dev_desc->dev, ext_part_sector, 1, (unsigned long *)buffer) != 1)
{
USB_STOR_PRINTF("Can't read partition table on %d:%d\r\n", dev_desc->dev, ext_part_sector);
usb_free(buffer);
return -1;
}
switch(dev_desc->part_type)
{
case PART_TYPE_GEMDOS:
gpt = (gemdos_partition_t *)(buffer + GEMDOS_PART_TBL_OFFSET);
for(i = 0; i < (relative ? 2 : 4); i++, gpt++)
{
unsigned long type = ((unsigned long)gpt->boot_ind << 24) + ((unsigned long)gpt->id[0] << 16) + ((unsigned long)gpt->id[1] << 8) + (unsigned long)gpt->id[2];
if((type & 0xffffff) == 0x58474D) // XGM
{
int lba_start = (int)*(unsigned long *)gpt->start4;
usb_free(buffer);
return get_partition_info_extended(dev_desc, lba_start, lba_start, part_num, which_part, info);
}
if(((type & 0xffffff) != 0) && (part_num == which_part))
{
info->type = type;
info->blksz = 512;
info->start = *(unsigned long *)gpt->start4;
info->size = *(unsigned long *)gpt->size4;
USB_STOR_PRINTF("GEMDOS partition at offset 0x%x, size 0x%x, type 0x%x\r\n", info->start, info->size, info->type & 0xffffff);
usb_free(buffer);
return 0;
}
}
break;
case PART_TYPE_DOS:
pt = (dos_partition_t *)(buffer + DOS_PART_TBL_OFFSET);
for(i = 0; i < 4; i++, pt++)
{
/* fdisk does not show the extended partitions that are not in the MBR */
if((pt->sys_ind != 0) && (part_num == which_part) && (is_extended(pt->sys_ind) == 0))
{
info->type = (unsigned long)pt->sys_ind;
info->blksz = 512;
info->start = ext_part_sector + le32_to_int(pt->start4);
info->size = le32_to_int(pt->size4);
USB_STOR_PRINTF("DOS partition at offset 0x%x, size 0x%x, type 0x%x %s\r\n", info->start, info->size, pt->sys_ind, (is_extended(pt->sys_ind) ? " Extd" : ""));
usb_free(buffer);
return 0;
}
/* Reverse engr the fdisk part# assignment rule! */
if((ext_part_sector == 0) || (pt->sys_ind != 0 && !is_extended (pt->sys_ind)))
part_num++;
}
/* Follows the extended partitions */
pt = (dos_partition_t *)(buffer + DOS_PART_TBL_OFFSET);
for(i = 0; i < 4; i++, pt++)
{
if(is_extended(pt->sys_ind))
{
int lba_start = le32_to_int(pt->start4) + relative;
usb_free(buffer);
return get_partition_info_extended(dev_desc, lba_start, ext_part_sector == 0 ? lba_start : relative, part_num, which_part, info);
}
}
break;
}
usb_free(buffer);
return -1;
}
int fat_register_device(block_dev_desc_t *dev_desc, int part_no, unsigned long *part_type, unsigned long *part_offset, unsigned long *part_size)
{
unsigned char *buffer;
disk_partition_t info;
if(!dev_desc->block_read)
return -1;
buffer = (unsigned char *)usb_malloc(DEFAULT_SECTOR_SIZE);
if(buffer == NULL)
return -1;
/* check if we have a MBR (on floppies we have only a PBR) */
if(dev_desc->block_read(dev_desc->dev, 0, 1, (unsigned long *)buffer) != 1)
{
USB_STOR_PRINTF("Can't read from device %d\r\n", dev_desc->dev);
usb_free(buffer);
return -1;
}
if(buffer[DOS_PART_MAGIC_OFFSET] != 0x55 || buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa)
{
/* no signature found */
usb_free(buffer);
return -1;
}
/* First we assume, there is a MBR */
if(!get_partition_info_extended(dev_desc, 0, 0, 1, part_no, &info))
{
*part_type = info.type;
*part_offset = info.start;
*part_size = info.size;
}
else if(!strncmp((char *)&buffer[DOS_FS_TYPE_OFFSET], "FAT", 3))
{
/* ok, we assume we are on a PBR only */
*part_type = 0;
*part_offset = 0;
*part_size = 0;
}
else
{
USB_STOR_PRINTF("Partition %d not valid on device %d\r\n", part_no, dev_desc->dev);
usb_free(buffer);
return -1;
}
usb_free(buffer);
return 0;
}
void dev_print(block_dev_desc_t *dev_desc)
{
#ifdef CONFIG_LBA48
uint64_t lba512; /* number of blocks if 512bytes block size */
#else
lbaint_t lba512;
#endif
if(dev_desc->type == DEV_TYPE_UNKNOWN)
{
board_printf("not available\r\n");
return;
}
board_printf("Vendor: %s Rev: %s Prod: %s\r\n", dev_desc->vendor, dev_desc->revision, dev_desc->product);
board_printf("\r\n");
if((dev_desc->lba * dev_desc->blksz) > 0L)
{
unsigned long mb, mb_quot, mb_rem, gb, gb_quot, gb_rem;
lbaint_t lba = dev_desc->lba;
lba512 = (lba * (dev_desc->blksz / 512));
mb = (10 * lba512) / 2048; /* 2048 = (1024 * 1024) / 512 MB */
/* round to 1 digit */
mb_quot = mb / 10;
mb_rem = mb - (10 * mb_quot);
gb = mb / 1024;
gb_quot = gb / 10;
gb_rem = gb - (10 * gb_quot);
#ifdef CONFIG_LBA48
if(dev_desc->lba48)
board_printf("Supports 48-bit addressing\r\n");
#endif
board_printf("Capacity: %ld.%ld MB = %ld.%ld GB (%ld x %ld)\r\n", mb_quot, mb_rem, gb_quot, gb_rem, (unsigned long)lba, dev_desc->blksz);
}
else
board_printf("Capacity: not available\r\n");
}
/*******************************************************************************
* show info on storage devices; 'usb start/init' must be invoked earlier
* as we only retrieve structures populated during devices initialization
*/
int usb_stor_info(void)
{
int i;
if(usb_max_devs > 0)
{
for(i = 0; i < usb_max_devs; i++)
{
board_printf("Device %d: ", i);
dev_print(&usb_dev_desc[i]);
}
return 0;
}
board_printf("No storage devices\r\n");
return 1;
}
/*******************************************************************************
* scan the usb and reports device info to the user
* returns current device or -1 if no
*/
int usb_stor_scan(void)
{
int i, j;
struct usb_device *dev;
usb_max_devs = 0;
drive_ok_usb = 1;
for(j = 0; j < USB_MAX_BUS; j++)
{
for(i = 0; i < USB_MAX_DEVICE; i++)
{
dev = usb_get_dev_index(i, j); /* get device */
if(dev == NULL)
break; /* no more devices available */
usb_stor_register(dev);
} /* for */
} /* for */
board_printf("%d Storage Device(s) found\r\n", usb_max_devs);
if(usb_max_devs > 0)
return 0;
return -1;
}
/*******************************************************************************
* registering usb mass storage device
*/
int usb_stor_register(struct usb_device *dev)
{
if(!drive_ok_usb)
return -1;
if(usb_max_devs >= USB_MAX_STOR_DEV)
{
board_printf("Max USB Storage Device reached: %d\r\n", usb_max_devs);
return -1;
}
if(usb_max_devs == 0)
{
int i;
for(i = 0; i < USB_MAX_STOR_DEV; i++)
{
memset(&usb_dev_desc[i], 0, sizeof(block_dev_desc_t));
usb_dev_desc[i].target = 0xff;
usb_dev_desc[i].if_type = IF_TYPE_USB;
usb_dev_desc[i].dev = i;
usb_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
usb_dev_desc[i].block_read = usb_stor_read;
usb_dev_desc[i].block_write = usb_stor_write;
}
}
if(usb_stor_buf == NULL)
usb_stor_buf = (unsigned char *)usb_malloc(512);
if(usb_stor_buf == NULL)
return -1;
memset(usb_stor_buf, 0, sizeof(usb_stor_buf));
usb_disable_asynch(1); /* asynch transfer not allowed */
if(usb_storage_probe(dev, 0, &usb_stor[usb_max_devs]))
{
/* ok, it is a storage devices get info and fill it in */
USB_STOR_PRINTF("USB STORAGE found (USB: %d, devnum: %d)\r\n", dev->usbnum, dev->devnum);
usb_dev_desc[usb_max_devs].priv = (void *)dev;
if(usb_stor_get_info(dev, &usb_stor[usb_max_devs], &usb_dev_desc[usb_max_devs]))
{
block_dev_desc_t *stor_dev;
if((stor_dev = usb_stor_get_dev(usb_max_devs)) != NULL)
{
int part_num = 1;
unsigned long part_type, part_offset, part_size;
while(!fat_register_device(stor_dev, part_num, &part_type, &part_offset, &part_size))
{
USB_STOR_PRINTF("USB STORAGE install partition dev: %d\r\n", usb_max_devs);
install_usb_stor(usb_max_devs, part_type, part_offset, part_size, stor_dev->vendor, stor_dev->revision, stor_dev->product);
part_num++;
}
}
usb_max_devs++;
dev->deregister = usb_stor_deregister;
usb_disable_asynch(0); /* asynch transfer allowed */
return 1;
}
else
usb_dev_desc[usb_max_devs].priv = NULL;
}
usb_disable_asynch(0); /* asynch transfer allowed */
return -1;
}
/*******************************************************************************
* deregistering usb mass storage device
*/
int usb_stor_deregister(struct usb_device *dev)
{
int i;
for (i = 0; i <= USB_MAX_STOR_DEV; i++)
{
if(dev == (struct usb_device *)usb_dev_desc[i].priv)
{
memset(&usb_dev_desc[i], 0, sizeof(block_dev_desc_t));
usb_dev_desc[i].target = 0xff;
usb_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
usb_dev_desc[i].priv = NULL;
usb_max_devs--;
uninstall_usb_stor(i);
USB_STOR_PRINTF("USB STORAGE deregister\r\n");
return 1;
}
}
return -1;
}
static int usb_stor_irq(struct usb_device *dev)
{
struct us_data *us;
us = (struct us_data *)dev->privptr;
if(us->ip_wanted)
us->ip_wanted = 0;
return 0;
}
#ifdef USB_STOR_DEBUG
static void usb_show_srb(ccb *pccb)
{
int i;
board_printf("SRB: len %d datalen 0x%lX\r\n ", pccb->cmdlen, pccb->datalen);
for(i = 0; i < 12; i++)
board_printf("%02X ", pccb->cmd[i]);
board_printf("\r\n");
}
static void display_int_status(unsigned long tmp)
{
board_printf("Status: %s %s %s %s %s %s %s\r\n",
(tmp & USB_ST_ACTIVE) ? "Active" : "",
(tmp & USB_ST_STALLED) ? "Stalled" : "",
(tmp & USB_ST_BUF_ERR) ? "Buffer Error" : "",
(tmp & USB_ST_BABBLE_DET) ? "Babble Det" : "",
(tmp & USB_ST_NAK_REC) ? "NAKed" : "",
(tmp & USB_ST_CRC_ERR) ? "CRC Error" : "",
(tmp & USB_ST_BIT_ERR) ? "Bitstuff Error" : "");
}
#endif
/***********************************************************************
* Data transfer routines
***********************************************************************/
static int us_one_transfer(struct us_data *us, int pipe, char *buf, int length)
{
int this_xfer, result, partial, maxtry, stat;
/* determine the maximum packet size for these transfers */
int max_size = usb_maxpacket(us->pusb_dev, pipe) * 16;
/* while we have data left to transfer */
while(length)
{
/* calculate how long this will be -- maximum or a remainder */
this_xfer = length > max_size ? max_size : length;
length -= this_xfer;
/* setup the retry counter */
maxtry = 10;
/* set up the transfer loop */
do
{
/* transfer the data */
USB_STOR_PRINTF("Bulk xfer 0x%x(%d) try #%d\r\n", (unsigned int)buf, this_xfer, 11 - maxtry);
result = usb_bulk_msg(us->pusb_dev, pipe, buf, this_xfer, &partial, USB_CNTL_TIMEOUT * 5);
USB_STOR_PRINTF("bulk_msg returned %d xferred %d/%d\r\n", result, partial, this_xfer);
if(us->pusb_dev->status != 0)
{
/* if we stall, we need to clear it before we go on */
#ifdef USB_STOR_DEBUG
display_int_status(us->pusb_dev->status);
#endif
if(us->pusb_dev->status & USB_ST_STALLED)
{
USB_STOR_PRINTF("stalled ->clearing endpoint halt for pipe 0x%x\r\n", pipe);
stat = us->pusb_dev->status;
usb_clear_halt(us->pusb_dev, pipe);
us->pusb_dev->status = stat;
if(this_xfer == partial)
{
USB_STOR_PRINTF("bulk transferred with error %X, but data ok\r\n", us->pusb_dev->status);
return 0;
}
else
return result;
}
if(us->pusb_dev->status & USB_ST_NAK_REC)
{
USB_STOR_PRINTF("Device NAKed bulk_msg\r\n");
return result;
}
USB_STOR_PRINTF("bulk transferred with error");
if(this_xfer == partial)
{
USB_STOR_PRINTF(" %d, but data ok\r\n", us->pusb_dev->status);
return 0;
}
/* if our try counter reaches 0, bail out */
USB_STOR_PRINTF(" %d, data %d\r\n", us->pusb_dev->status, partial);
if(!maxtry--)
return result;
}
/* update to show what data was transferred */
this_xfer -= partial;
buf += partial;
/* continue until this transfer is done */
}
while (this_xfer);
}
/* if we get here, we're done and successful */
return 0;
}
static int usb_stor_BBB_reset(struct us_data *us)
{
int result;
unsigned int pipe;
/*
* Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
*
* For Reset Recovery the host shall issue in the following order:
* a) a Bulk-Only Mass Storage Reset
* b) a Clear Feature HALT to the Bulk-In endpoint
* c) a Clear Feature HALT to the Bulk-Out endpoint
*
* This is done in 3 steps.
*
* If the reset doesn't succeed, the device should be port reset.
*
* This comment stolen from FreeBSD's /sys/dev/usb/umass.c.
*/
USB_STOR_PRINTF("BBB_reset\r\n");
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);
if((result < 0) && (us->pusb_dev->status & USB_ST_STALLED))
{
USB_STOR_PRINTF("RESET:stall\r\n");
return -1;
}
/* long wait for reset */
wait_ms(150);
USB_STOR_PRINTF("BBB_reset result %d: status %X reset\r\n", result, us->pusb_dev->status);
pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
result = usb_clear_halt(us->pusb_dev, pipe);
/* long wait for reset */
wait_ms(150);
USB_STOR_PRINTF("BBB_reset result %d: status %X clearing IN endpoint\r\n", result, us->pusb_dev->status);
/* long wait for reset */
pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
result = usb_clear_halt(us->pusb_dev, pipe);
wait_ms(150);
USB_STOR_PRINTF("BBB_reset result %d: status %X clearing OUT endpoint\r\n", result, us->pusb_dev->status);
USB_STOR_PRINTF("BBB_reset done\r\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;
USB_STOR_PRINTF("CB_reset\r\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 */
wait_ms(1500);
USB_STOR_PRINTF("CB_reset result %d: status %X clearing endpoint halt\r\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));
USB_STOR_PRINTF("CB_reset done\r\n");
return 0;
}
/*
* 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)
{
int result, actlen, dir_in;
unsigned int pipe;
umass_bbb_cbw_t *cbw = (umass_bbb_cbw_t *)usb_malloc(sizeof(umass_bbb_cbw_t));
if(cbw == NULL)
{
USB_STOR_PRINTF("usb_stor_BBB_comdat: out of memory\r\n");
return -1;
}
dir_in = US_DIRECTION(srb->cmd[0]);
#ifdef BBB_COMDAT_TRACE
board_printf("dir %d lun %d cmdlen %d cmd %p datalen %d pdata %p\r\n", dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen, srb->pdata);
if(srb->cmdlen)
{
for(result = 0; result < srb->cmdlen; result++)
board_printf("cmd[%d] %#x ", result, srb->cmd[result]);
board_printf("\r\n");
}
#endif
/* sanity checks */
if(!(srb->cmdlen <= CBWCDBLENGTH))
{
USB_STOR_PRINTF("usb_stor_BBB_comdat: cmdlen too large\r\n");
usb_free(cbw);
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)
USB_STOR_PRINTF("usb_stor_BBB_comdat:usb_bulk_msg error\r\n");
usb_free(cbw);
return result;
}
/* 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)
{
int result = 0;
int retry = 5;
unsigned int pipe;
unsigned long status;
int 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--)
{
USB_STOR_PRINTF("CBI gets a command: Try %d\r\n", 5 - retry);
#ifdef USB_STOR_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);
USB_STOR_PRINTF("CB_transport: control msg returned %d, status %X\r\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;
USB_STOR_PRINTF(" stall during command found, clear pipe\r\n");
usb_clear_halt(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0));
us->pusb_dev->status = status;
}
USB_STOR_PRINTF(" error during command %02X Stat = %X\r\n", srb->cmd[0], us->pusb_dev->status);
return result;
}
/* transfer the data payload for this command, if one exists*/
USB_STOR_PRINTF("CB_transport: control msg returned %d, direction is %s to go 0x%lx\r\n", result, dir_in ? "IN" : "OUT", srb->datalen);
if(srb->datalen)
{
result = us_one_transfer(us, pipe, (char *)srb->pdata, srb->datalen);
USB_STOR_PRINTF("CBI attempted to transfer data, result is %d status %X, len %d\r\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;
}
int usb_stor_CBI_get_status(ccb *srb, struct us_data *us)
{
int timeout = 1000;
us->ip_wanted = 1;
usb_submit_int_msg(us->pusb_dev, us->irqpipe, (void *) &us->ip_data, us->irqmaxp, us->irqinterval);
while(timeout--)
{
if((volatile int *) us->ip_wanted == 0)
break;
wait_ms(10);
}
if(us->ip_wanted)
{
board_printf("Did not get interrupt on CBI\r\n");
us->ip_wanted = 0;
return USB_STOR_TRANSPORT_ERROR;
}
USB_STOR_PRINTF("Got interrupt data 0x%x, transfered %d status 0x%lX\r\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;
}
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 */
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);
return result;
}
int usb_stor_BBB_transport(ccb *srb, struct us_data *us)
{
int result, retry;
int dir_in;
int actlen, data_actlen;
unsigned int pipe, pipein, pipeout;
#ifdef BBB_XPORT_TRACE
unsigned char *ptr;
int index;
#endif
umass_bbb_csw_t *csw = (umass_bbb_csw_t *)usb_malloc(sizeof(umass_bbb_csw_t));
if(csw == NULL)
{
USB_STOR_PRINTF("out of memory\r\n");
return USB_STOR_TRANSPORT_FAILED;
}
dir_in = US_DIRECTION(srb->cmd[0]);
/* COMMAND phase */
USB_STOR_PRINTF("COMMAND phase\r\n");
result = usb_stor_BBB_comdat(srb, us);
if(result < 0)
{
USB_STOR_PRINTF("failed to send CBW status %X\r\n", us->pusb_dev->status);
if(!(us->pusb_dev->status & USB_ST_NOT_PROC))
usb_stor_BBB_reset(us);
usb_free(csw);
return USB_STOR_TRANSPORT_FAILED;
}
wait_ms(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;
USB_STOR_PRINTF("DATA phase\r\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))
{
USB_STOR_PRINTF("DATA:stall\r\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)
{
USB_STOR_PRINTF("usb_bulk_msg error status %X\r\n", us->pusb_dev->status);
usb_stor_BBB_reset(us);
usb_free(csw);
return USB_STOR_TRANSPORT_FAILED;
}
#ifdef BBB_XPORT_TRACE
for(index = 0; index < data_actlen; index++)
board_printf("pdata[%d] %#x ", index, srb->pdata[index]);
board_printf("\r\n");
#endif
/* STATUS phase + error handling */
st:
retry = 0;
again:
USB_STOR_PRINTF("STATUS phase\r\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))
{
USB_STOR_PRINTF("STATUS:stall\r\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)
{
USB_STOR_PRINTF("usb_bulk_msg error status %X\r\n", us->pusb_dev->status);
usb_stor_BBB_reset(us);
usb_free(csw);
return USB_STOR_TRANSPORT_FAILED;
}
#ifdef BBB_XPORT_TRACE
ptr = (unsigned char *)csw;
for(index = 0; index < UMASS_BBB_CSW_SIZE; index++)
board_printf("ptr[%d] %#x ", index, ptr[index]);
board_printf("\r\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))
{
USB_STOR_PRINTF("!CSWSIGNATURE\r\n");
usb_stor_BBB_reset(us);
usb_free(csw);
return USB_STOR_TRANSPORT_FAILED;
}
else if((CBWTag - 1) != le32_to_cpu(csw->dCSWTag))
{
USB_STOR_PRINTF("!Tag\r\n");
usb_stor_BBB_reset(us);
usb_free(csw);
return USB_STOR_TRANSPORT_FAILED;
}
else if(csw->bCSWStatus > CSWSTATUS_PHASE)
{
USB_STOR_PRINTF(">PHASE\r\n");
usb_stor_BBB_reset(us);
usb_free(csw);
return USB_STOR_TRANSPORT_FAILED;
}
else if(csw->bCSWStatus == CSWSTATUS_PHASE)
{
USB_STOR_PRINTF("=PHASE\r\n");
usb_stor_BBB_reset(us);
usb_free(csw);
return USB_STOR_TRANSPORT_FAILED;
}
else if(data_actlen > srb->datalen)
{
USB_STOR_PRINTF("transferred %dB instead of %dB\r\n", data_actlen, srb->datalen);
usb_free(csw);
return USB_STOR_TRANSPORT_FAILED;
}
else if(csw->bCSWStatus == CSWSTATUS_FAILED)
{
USB_STOR_PRINTF("FAILED\r\n");
usb_free(csw);
return USB_STOR_TRANSPORT_FAILED;
}
usb_free(csw);
return result;
}
int usb_stor_CB_transport(ccb *srb, struct us_data *us)
{
int result, status;
int retry = 0, notready = 0;
ccb *psrb = (ccb *)usb_malloc(sizeof(ccb));
if(psrb == NULL)
{
USB_STOR_PRINTF("out of memory\r\n");
return USB_STOR_TRANSPORT_FAILED;
}
status = USB_STOR_TRANSPORT_GOOD;
/* issue the command */
do_retry:
result = usb_stor_CB_comdat(srb, us);
USB_STOR_PRINTF("command / Data returned %d, status %X\r\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)
{
USB_STOR_PRINTF(" USB CBI Command Error\r\n");
usb_free(psrb);
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)
{
USB_STOR_PRINTF(" USB CBI Command Good\r\n");
usb_free(psrb);
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))
{
USB_STOR_PRINTF("ERROR %X\r\n", us->pusb_dev->status);
us->transport_reset(us);
usb_free(psrb);
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 */
USB_STOR_PRINTF("No auto request and good\r\n");
usb_free(psrb);
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);
USB_STOR_PRINTF("auto request returned %d\r\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))
{
USB_STOR_PRINTF(" AUTO REQUEST ERROR %d\r\n", us->pusb_dev->status);
usb_free(psrb);
return USB_STOR_TRANSPORT_ERROR;
}
USB_STOR_PRINTF("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\r\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 */
usb_free(psrb);
return USB_STOR_TRANSPORT_GOOD;
}
/* Check the auto request result */
switch(srb->sense_buf[2])
{
case 0x01:
/* Recovered Error */
usb_free(psrb);
return USB_STOR_TRANSPORT_GOOD;
case 0x02: /* Not Ready */
if(notready++ > USB_TRANSPORT_NOT_READY_RETRY)
{
board_printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X 0x%02X (NOT READY)\r\n", srb->cmd[0], srb->sense_buf[0], srb->sense_buf[2], srb->sense_buf[12], srb->sense_buf[13]);
usb_free(psrb);
return USB_STOR_TRANSPORT_FAILED;
}
else
{
wait_ms(100);
goto do_retry;
}
break;
default:
if(retry++ > USB_TRANSPORT_UNKNOWN_RETRY)
{
board_printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X 0x%02X\r\n", srb->cmd[0], srb->sense_buf[0], srb->sense_buf[2], srb->sense_buf[12], srb->sense_buf[13]);
usb_free(psrb);
return USB_STOR_TRANSPORT_FAILED;
}
else
goto do_retry;
break;
}
usb_free(psrb);
return USB_STOR_TRANSPORT_FAILED;
}
static int usb_inquiry(ccb *srb, struct us_data *ss)
{
int i, retry = 5;
do
{
memset(&srb->cmd[0], 0, 12);
srb->cmd[0] = SCSI_INQUIRY;
srb->cmd[4] = 36;
srb->datalen = 36;
srb->cmdlen = 12;
i = ss->transport(srb, ss);
USB_STOR_PRINTF("inquiry returns %d\r\n", i);
switch(i)
{
case USB_STOR_TRANSPORT_GOOD : return 0;
default :
if(ss->pusb_dev->status & USB_ST_NOT_PROC)
return -1;
break;
}
}
while(retry--);
board_printf("error in inquiry\r\n");
return -1;
}
static int usb_request_sense(ccb *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[4] = 18;
srb->datalen = 18;
srb->pdata = &srb->sense_buf[0];
srb->cmdlen = 12;
ss->transport(srb, ss);
USB_STOR_PRINTF("Request Sense returned %02X %02X %02X\r\n", srb->sense_buf[2], srb->sense_buf[12], srb->sense_buf[13]);
srb->pdata = (unsigned char *)ptr;
return 0;
}
static int usb_test_unit_ready(ccb *srb, struct us_data *ss)
{
int retries = 10;
do
{
memset(&srb->cmd[0], 0, 12);
srb->cmd[0] = SCSI_TST_U_RDY;
srb->datalen = 0;
srb->cmdlen = 12;
switch(ss->transport(srb, ss))
{
case USB_STOR_TRANSPORT_GOOD : return 0;
default :
if(ss->pusb_dev->status & USB_ST_NOT_PROC)
return -1;
break;
}
usb_request_sense(srb, ss);
wait_ms(100);
}
while(retries--);
return -1;
}
static int usb_read_capacity(ccb *srb, struct us_data *ss)
{
int retry = 3;
do
{
memset(&srb->cmd[0], 0, 12);
srb->cmd[0] = SCSI_RD_CAPAC;
srb->datalen = 8;
srb->cmdlen = 12;
switch(ss->transport(srb, ss))
{
case USB_STOR_TRANSPORT_GOOD : return 0;
default :
if(ss->pusb_dev->status & USB_ST_NOT_PROC)
return -1;
break;
}
}
while(retry--);
return -1;
}
static int usb_read_10(ccb *srb, struct us_data *ss, unsigned long start, unsigned short blocks)
{
memset(&srb->cmd[0], 0, 12);
srb->cmd[0] = SCSI_READ10;
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;
USB_STOR_PRINTF("read10: start %lx blocks %x\r\n", start, blocks);
return ss->transport(srb, ss);
}
#ifdef CONFIG_USB_WRITE_ENABLE
static int usb_write_10(ccb *srb, struct us_data *ss, unsigned long start, unsigned short blocks)
{
memset(&srb->cmd[0], 0, 12);
srb->cmd[0] = SCSI_WRITE10;
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;
USB_STOR_PRINTF("write10: start %lx blocks %x\r\n", start, blocks);
return ss->transport(srb, ss);
}
#endif /* CONFIG_USB_WRITE_ENABLE */
#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
* block_dev_desc_t 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 */
#define USB_MAX_READ_BLK 20
long usb_stor_read(int device, unsigned long blknr, unsigned long blkcnt, void *buffer)
{
unsigned long start, blks, buf_addr;
unsigned short smallblks;
struct usb_device *dev;
unsigned char *tmp_buf;
int retry, i, j;
ccb *srb = &usb_ccb;
if(blkcnt == 0)
return -1;
device &= 0xff;
/* Setup device */
dev = NULL;
for(j = 0; j < USB_MAX_BUS; j++)
{
for(i = 0; i < USB_MAX_DEVICE; i++)
{
dev = usb_get_dev_index(i, j);
if(dev == NULL)
break;
if(dev == (struct usb_device *)usb_dev_desc[device].priv)
{
j = USB_MAX_BUS;
break;
}
}
}
if((dev == NULL) || (dev->privptr == NULL))
return -1;
usb_disable_asynch(1); /* asynch transfer not allowed */
srb->lun = usb_dev_desc[device].lun;
buf_addr = (unsigned long)buffer;
start = blknr;
blks = blkcnt;
if(usb_test_unit_ready(srb, (struct us_data *)dev->privptr))
{
board_printf("Device NOT ready\r\nRequest Sense returned %02X %02X %02X\r\n", srb->sense_buf[2], srb->sense_buf[12], srb->sense_buf[13]);
usb_disable_asynch(0); /* asynch transfer allowed */
return -2;
}
tmp_buf = (unsigned char *)usb_malloc(USB_MAX_READ_BLK * usb_dev_desc[device].blksz);
if(tmp_buf == NULL)
{
USB_STOR_PRINTF("Read out of memory ERROR\r\n");
usb_disable_asynch(0); /* asynch transfer allowed */
return -1;
}
USB_STOR_PRINTF("usb_read: dev %d startblk %lx, blccnt %lx buffer %lx\r\n", device, start, blks, buf_addr);
do
{
/* XXX need some comment here */
retry = 2;
if(blks > USB_MAX_READ_BLK)
smallblks = USB_MAX_READ_BLK;
else
smallblks = (unsigned short)blks;
retry_it:
srb->datalen = usb_dev_desc[device].blksz * smallblks;
srb->pdata = tmp_buf;
if(usb_read_10(srb, (struct us_data *)dev->privptr, start, smallblks))
{
USB_STOR_PRINTF("Read ERROR\r\n");
usb_request_sense(srb, (struct us_data *)dev->privptr);
if(retry--)
goto retry_it;
blkcnt -= blks;
break;
}
memcpy((void *)buf_addr, tmp_buf, srb->datalen);
start += smallblks;
blks -= smallblks;
buf_addr += srb->datalen;
}
while(blks != 0);
usb_free(tmp_buf);
USB_STOR_PRINTF("usb_read: end startblk %lx, blccnt %x buffer %lx\r\n", start, smallblks, buf_addr);
usb_disable_asynch(0); /* asynch transfer allowed */
return blkcnt;
}
long usb_stor_write(int device, unsigned long blknr, unsigned long blkcnt, const void *buffer)
{
#ifdef CONFIG_USB_WRITE_ENABLE
unsigned long start, blks, buf_addr;
unsigned short smallblks;
struct usb_device *dev;
unsigned char *tmp_buf;
int retry, i, j;
ccb *srb = &usb_ccb;
if(blkcnt == 0)
return -1;
device &= 0xff;
/* Setup device */
dev = NULL;
for(j = 0; j < USB_MAX_BUS; j++)
{
for(i = 0; i < USB_MAX_DEVICE; i++)
{
dev = usb_get_dev_index(i, j);
if(dev == NULL)
break;
if(dev == (struct usb_device *)usb_dev_desc[device].priv)
{
j = USB_MAX_BUS;
break;
}
}
}
if((dev == NULL) || (dev->privptr == NULL))
return -1;
usb_disable_asynch(1); /* asynch transfer not allowed */
srb->lun = usb_dev_desc[device].lun;
buf_addr = (unsigned long)buffer;
start = blknr;
blks = blkcnt;
if(usb_test_unit_ready(srb, (struct us_data *)dev->privptr))
{
board_printf("Device NOT ready\r\nRequest Sense returned %02X %02X %02X\r\n", srb->sense_buf[2], srb->sense_buf[12], srb->sense_buf[13]);
usb_disable_asynch(0); /* asynch transfer allowed */
return -2;
}
tmp_buf = (unsigned char *)usb_malloc(USB_MAX_READ_BLK * usb_dev_desc[device].blksz);
if(tmp_buf == NULL)
{
USB_STOR_PRINTF("Write out of memory ERROR\r\n");
usb_disable_asynch(0); /* asynch transfer allowed */
return -1;
}
USB_STOR_PRINTF("usb_write: dev %d startblk %lx, blccnt %lx buffer %lx\r\n", device, start, blks, buf_addr);
do
{
/* XXX need some comment here */
retry = 2;
if(blks > USB_MAX_READ_BLK)
smallblks = USB_MAX_READ_BLK;
else
smallblks = (unsigned short)blks;
retry_it:
srb->datalen = usb_dev_desc[device].blksz * smallblks;
srb->pdata = tmp_buf;
memcpy(tmp_buf, (void *)buf_addr, srb->datalen);
if(usb_write_10(srb, (struct us_data *)dev->privptr, start, smallblks))
{
USB_STOR_PRINTF("Write ERROR\r\n");
usb_request_sense(srb, (struct us_data *)dev->privptr);
if(retry--)
goto retry_it;
blkcnt -= blks;
break;
}
start += smallblks;
blks -= smallblks;
buf_addr += srb->datalen;
}
while(blks != 0);
usb_free(tmp_buf);
USB_STOR_PRINTF("usb_write: end startblk %lx, blccnt %x buffer %lx\r\n", start, smallblks, buf_addr);
usb_disable_asynch(0); /* asynch transfer allowed */
return blkcnt;
#else
if(device);
if(blknr);
if(blkcnt);
if(buffer);
return 0;
#endif /* CONFIG_USB_WRITE_ENABLE */
}
/* 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_descriptor *iface;
int i;
unsigned int flags = 0;
int protocol = 0;
int subclass = 0;
/* let's examine the device now */
iface = &dev->config.if_desc[ifnum];
#if 0
USB_STOR_PRINTF("iVendor 0x%X iProduct 0x%X\r\n", dev->descriptor.idVendor, dev->descriptor.idProduct);
/* this is the place to patch some storage devices */
if((dev->descriptor.idVendor) == 0x066b && (dev->descriptor.idProduct) == 0x0103)
{
USB_STOR_PRINTF("patched for E-USB\r\n");
protocol = US_PR_CB;
subclass = US_SC_UFI; /* an assumption */
}
#endif
if(dev->descriptor.bDeviceClass != 0 || iface->bInterfaceClass != USB_CLASS_MASS_STORAGE
|| iface->bInterfaceSubClass < US_SC_MIN || iface->bInterfaceSubClass > US_SC_MAX)
/* 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 */
USB_STOR_PRINTF("\r\n\r\nUSB Mass Storage device detected\r\n");
/* Initialize the us_data structure with some useful info */
ss->flags = flags;
ss->ifnum = ifnum;
ss->pusb_dev = dev;
ss->attention_done = 0;
/* If the device has subclass and protocol, then use that. Otherwise,
* take data from the specific interface.
*/
if(subclass)
{
ss->subclass = subclass;
ss->protocol = protocol;
}
else
{
ss->subclass = iface->bInterfaceSubClass;
ss->protocol = iface->bInterfaceProtocol;
}
/* set the handler pointers based on the protocol */
USB_STOR_PRINTF("Transport: ");
switch(ss->protocol)
{
case US_PR_CB:
USB_STOR_PRINTF("Control/Bulk\r\n");
ss->transport = usb_stor_CB_transport;
ss->transport_reset = usb_stor_CB_reset;
break;
case US_PR_CBI:
USB_STOR_PRINTF("Control/Bulk/Interrupt\r\n");
ss->transport = usb_stor_CB_transport;
ss->transport_reset = usb_stor_CB_reset;
break;
case US_PR_BULK:
USB_STOR_PRINTF("Bulk/Bulk/Bulk\r\n");
ss->transport = usb_stor_BBB_transport;
ss->transport_reset = usb_stor_BBB_reset;
break;
default:
board_printf("USB Storage Transport unknown / not yet implemented\r\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->bNumEndpoints; i++)
{
/* is it an BULK endpoint? */
if((iface->ep_desc[i].bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK)
{
if(iface->ep_desc[i].bEndpointAddress & USB_DIR_IN)
ss->ep_in = iface->ep_desc[i].bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
else
ss->ep_out = iface->ep_desc[i].bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
}
/* is it an interrupt endpoint? */
if((iface->ep_desc[i].bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
{
ss->ep_int = iface->ep_desc[i].bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
ss->irqinterval = iface->ep_desc[i].bInterval;
}
}
USB_STOR_PRINTF("Endpoints In %d Out %d Int %d\r\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->bInterfaceNumber, 0) || !ss->ep_in || !ss->ep_out
|| (ss->protocol == US_PR_CBI && ss->ep_int == 0))
{
USB_STOR_PRINTF("Problems with device\r\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)
{
board_printf("Sorry, protocol %d not yet supported.\r\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;
}
dev->privptr = (void *)ss;
return 1;
}
int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, block_dev_desc_t *dev_desc)
{
unsigned char perq, modi;
unsigned long *cap = NULL;
unsigned long *capacity, *blksz;
ccb *pccb = &usb_ccb;
/* for some reasons a couple of devices would not survive this reset */
if(
/* Sony USM256E */
(dev->descriptor.idVendor == 0x054c && dev->descriptor.idProduct == 0x019e)
/* USB007 Mini-USB2 Flash Drive */
|| (dev->descriptor.idVendor == 0x066f && dev->descriptor.idProduct == 0x2010)
/* SanDisk Corporation Cruzer Micro 20044318410546613953 */
|| (dev->descriptor.idVendor == 0x0781 && dev->descriptor.idProduct == 0x5151)
/* SanDisk Corporation U3 Cruzer Micro 1/4GB Flash Drive 000016244373FFB4 */
|| (dev->descriptor.idVendor == 0x0781 && dev->descriptor.idProduct == 0x5406)
)
USB_STOR_PRINTF("usb_stor_get_info: skipping RESET..\r\n");
else
ss->transport_reset(ss);
pccb->pdata = usb_stor_buf;
dev_desc->target = dev->devnum;
pccb->lun = dev_desc->lun;
USB_STOR_PRINTF(" address %d\r\n", dev_desc->target);
if(usb_inquiry(pccb, ss))
return -1;
perq = usb_stor_buf[0];
modi = usb_stor_buf[1];
if((perq & 0x1f) == 0x1f)
return 0; /* skip unknown devices */
if((modi & 0x80) == 0x80)
dev_desc->removable = 1; /* drive is removable */
memcpy(&dev_desc->vendor[0], &usb_stor_buf[8], 8);
memcpy(&dev_desc->product[0], &usb_stor_buf[16], 16);
memcpy(&dev_desc->revision[0], &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 */
USB_STOR_PRINTF("ISO Vers %X, Response Data %X\r\n", usb_stor_buf[2], usb_stor_buf[3]);
if(usb_test_unit_ready(pccb, ss))
{
board_printf("Device NOT ready\r\nRequest Sense returned %02X %02X %02X\r\n", pccb->sense_buf[2], pccb->sense_buf[12], pccb->sense_buf[13]);
if(dev_desc->removable == 1)
{
dev_desc->type = perq;
return 1;
}
return 0;
}
cap = (unsigned long *)usb_malloc(sizeof(unsigned long) * 2);
if(cap == NULL)
return 0;
pccb->pdata = (unsigned char *)&cap[0];
memset(pccb->pdata, 0, 8);
if(usb_read_capacity(pccb, ss) != 0)
{
board_printf("READ_CAP ERROR\r\n");
cap[0] = 2880;
cap[1] = 0x200;
}
USB_STOR_PRINTF("Read Capacity returns: 0x%lx, 0x%lx\r\n", cap[0], cap[1]);
#if 0
if(cap[0] > (0x200000 * 10)) /* greater than 10 GByte */
cap[0] >>= 16;
#endif
cap[0] = cpu_to_be32(cap[0]);
cap[1] = cpu_to_be32(cap[1]);
/* this assumes bigendian! */
cap[0] += 1;
capacity = &cap[0];
blksz = &cap[1];
USB_STOR_PRINTF("Capacity = 0x%lx, blocksz = 0x%lx\r\n", *capacity, *blksz);
dev_desc->lba = *capacity;
dev_desc->blksz = *blksz;
dev_desc->type = perq;
USB_STOR_PRINTF(" address %d\r\n", dev_desc->target);
USB_STOR_PRINTF("partype: %d\r\n", dev_desc->part_type);
init_part(dev_desc);
USB_STOR_PRINTF("partype: %d\r\n", dev_desc->part_type);
usb_free(cap);
return 1;
}
#endif /* CONFIG_USB_STORAGE */
#endif /* CONFIG_USB_UHCI || CONFIG_USB_OHCI || CONFIG_USB_EHCI */
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