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common/usb_storage.c
38.4 KB
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/* |
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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 |
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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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* SPDX-License-Identifier: GPL-2.0+ |
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*/ /* 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. */ |
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/* * New Note: * Support for USB Mass Storage Devices (BBB) has been added. It has * only been tested with USB memory sticks. |
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*/ |
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#include <common.h> #include <command.h> |
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#include <asm/byteorder.h> |
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#include <asm/processor.h> |
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#include <part.h> |
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#include <usb.h> |
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#undef BBB_COMDAT_TRACE #undef BBB_XPORT_TRACE |
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#include <scsi.h> /* direction table -- this indicates the direction of the data * transfer for each command code -- a 1 indicates input */ |
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static const unsigned char us_direction[256/8] = { |
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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) |
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static ccb usb_ccb __attribute__((aligned(ARCH_DMA_MINALIGN))); |
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/* * CBI style */ #define US_CBI_ADSC 0 |
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/* * 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; |
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#define UMASS_BBB_CBW_SIZE 31 |
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static __u32 CBWTag; |
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/* Command Status Wrapper */ typedef struct { __u32 dCSWSignature; # define CSWSIGNATURE 0x53425355 __u32 dCSWTag; __u32 dCSWDataResidue; __u8 bCSWStatus; # define CSWSTATUS_GOOD 0x0 |
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# define CSWSTATUS_FAILED 0x1 |
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# define CSWSTATUS_PHASE 0x2 } umass_bbb_csw_t; |
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#define UMASS_BBB_CSW_SIZE 13 |
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#define USB_MAX_STOR_DEV 5 |
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static int usb_max_devs; /* number of highest available usb device */ |
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static block_dev_desc_t usb_dev_desc[USB_MAX_STOR_DEV]; struct us_data; |
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typedef int (*trans_cmnd)(ccb *cb, struct us_data *data); 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 */ unsigned int flags; /* from filter initially */ |
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# define USB_READY (1 << 0) |
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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 */ |
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}; |
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#ifdef CONFIG_USB_EHCI |
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/* |
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* 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. |
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*/ |
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#define USB_MAX_XFER_BLK 65535 |
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#else |
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#define USB_MAX_XFER_BLK 20 |
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#endif |
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static struct us_data usb_stor[USB_MAX_STOR_DEV]; |
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#define USB_STOR_TRANSPORT_GOOD 0 |
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#define USB_STOR_TRANSPORT_FAILED -1 #define USB_STOR_TRANSPORT_ERROR -2 |
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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); |
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unsigned long usb_stor_read(int device, lbaint_t blknr, |
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lbaint_t blkcnt, void *buffer); |
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unsigned long usb_stor_write(int device, lbaint_t blknr, |
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lbaint_t blkcnt, const void *buffer); |
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struct usb_device * usb_get_dev_index(int index); void uhci_show_temp_int_td(void); |
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#ifdef CONFIG_PARTITIONS |
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block_dev_desc_t *usb_stor_get_dev(int index) { |
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return (index < usb_max_devs) ? &usb_dev_desc[index] : NULL; |
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} |
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#endif |
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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 * as we only retrieve structures populated during devices initialization */ |
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int usb_stor_info(void) |
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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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return 0; |
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} |
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printf("No storage devices, perhaps not 'usb start'ed..? "); return 1; |
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} |
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static unsigned int usb_get_max_lun(struct us_data *us) { 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, usb_rcvctrlpipe(us->pusb_dev, 0), US_BBB_GET_MAX_LUN, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, 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 ", len, (int) *result); |
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return (len > 0) ? *result : 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 * returns current device or -1 if no */ int usb_stor_scan(int mode) { unsigned char i; struct usb_device *dev; |
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if (mode == 1) |
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printf(" scanning usb for storage devices... "); |
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usb_disable_asynch(1); /* asynch transfer not allowed */ |
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for (i = 0; i < USB_MAX_STOR_DEV; i++) { memset(&usb_dev_desc[i], 0, sizeof(block_dev_desc_t)); |
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usb_dev_desc[i].if_type = IF_TYPE_USB; usb_dev_desc[i].dev = i; usb_dev_desc[i].part_type = PART_TYPE_UNKNOWN; |
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usb_dev_desc[i].target = 0xff; usb_dev_desc[i].type = DEV_TYPE_UNKNOWN; |
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usb_dev_desc[i].block_read = usb_stor_read; |
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usb_dev_desc[i].block_write = usb_stor_write; |
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} |
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usb_max_devs = 0; for (i = 0; i < USB_MAX_DEVICE; i++) { dev = usb_get_dev_index(i); /* get device */ |
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debug("i=%d ", i); |
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if (dev == NULL) |
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break; /* no more devices available */ |
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if (usb_storage_probe(dev, 0, &usb_stor[usb_max_devs])) { |
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/* OK, it's a storage device. Iterate over its LUNs * and populate `usb_dev_desc'. |
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*/ |
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int lun, max_lun, start = usb_max_devs; max_lun = usb_get_max_lun(&usb_stor[usb_max_devs]); for (lun = 0; lun <= max_lun && usb_max_devs < USB_MAX_STOR_DEV; lun++) { usb_dev_desc[usb_max_devs].lun = lun; if (usb_stor_get_info(dev, &usb_stor[start], |
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&usb_dev_desc[usb_max_devs]) == 1) { usb_max_devs++; } |
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} } |
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/* if storage device */ if (usb_max_devs == USB_MAX_STOR_DEV) { printf("max USB Storage Device reached: %d stopping ", usb_max_devs); |
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break; } } /* for */ |
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usb_disable_asynch(0); /* asynch transfer allowed */ |
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printf("%d Storage Device(s) found ", 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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} static int usb_stor_irq(struct usb_device *dev) { struct us_data *us; |
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us = (struct us_data *)dev->privptr; |
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if (us->ip_wanted) us->ip_wanted = 0; |
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return 0; } |
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#ifdef DEBUG |
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static void usb_show_srb(ccb *pccb) |
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{ int i; |
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printf("SRB: len %d datalen 0x%lX ", pccb->cmdlen, pccb->datalen); for (i = 0; i < 12; i++) printf("%02X ", pccb->cmd[i]); |
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printf(" "); } static void display_int_status(unsigned long tmp) { printf("Status: %s %s %s %s %s %s %s ", (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 max_size; int this_xfer; int result; int partial; int maxtry; int stat; /* determine the maximum packet size for these transfers */ 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 */ |
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debug("Bulk xfer 0x%x(%d) try #%d ", (unsigned int)buf, this_xfer, 11 - maxtry); |
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result = usb_bulk_msg(us->pusb_dev, pipe, buf, |
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this_xfer, &partial, USB_CNTL_TIMEOUT * 5); |
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debug("bulk_msg returned %d xferred %d/%d ", result, partial, this_xfer); |
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if (us->pusb_dev->status != 0) { /* if we stall, we need to clear it before * we go on */ |
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#ifdef DEBUG |
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display_int_status(us->pusb_dev->status); #endif if (us->pusb_dev->status & USB_ST_STALLED) { |
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debug("stalled ->clearing endpoint" \ "halt for pipe 0x%x ", pipe); |
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stat = us->pusb_dev->status; usb_clear_halt(us->pusb_dev, pipe); |
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us->pusb_dev->status = stat; if (this_xfer == partial) { |
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debug("bulk transferred" \ "with error %lX," \ " but data ok ", us->pusb_dev->status); |
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return 0; } else return result; } if (us->pusb_dev->status & USB_ST_NAK_REC) { |
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debug("Device NAKed bulk_msg "); |
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return result; } |
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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 ", us->pusb_dev->status); |
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return 0; } /* if our try counter reaches 0, bail out */ |
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debug(" %ld, data %d ", us->pusb_dev->status, partial); |
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if (!maxtry--) return result; } /* update to show what data was transferred */ this_xfer -= partial; buf += partial; /* continue until this transfer is done */ |
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} while (this_xfer); |
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} /* if we get here, we're done and successful */ return 0; } |
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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. */ |
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debug("BBB_reset "); |
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result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), US_BBB_RESET, 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 "); |
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return -1; } |
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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 ", result, us->pusb_dev->status); |
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pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); result = usb_clear_halt(us->pusb_dev, pipe); /* long wait for reset */ |
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mdelay(150); |
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debug("BBB_reset result %d: status %lX clearing IN endpoint ", result, us->pusb_dev->status); |
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/* long wait for reset */ pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); result = usb_clear_halt(us->pusb_dev, pipe); |
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mdelay(150); |
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debug("BBB_reset result %d: status %lX clearing OUT endpoint ", result, us->pusb_dev->status); debug("BBB_reset done "); |
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return 0; } |
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/* 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; |
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debug("CB_reset "); |
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memset(cmd, 0xff, sizeof(cmd)); |
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cmd[0] = SCSI_SEND_DIAG; cmd[1] = 4; |
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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); |
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/* long wait for reset */ |
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mdelay(1500); |
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debug("CB_reset result %d: status %lX clearing endpoint halt ", result, us->pusb_dev->status); |
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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)); |
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debug("CB_reset done "); |
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return 0; } |
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/* * Set up the command for a BBB device. Note that the actual SCSI * command is copied into cbw.CBWCDB. */ |
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static int usb_stor_BBB_comdat(ccb *srb, struct us_data *us) |
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{ int result; int actlen; int dir_in; unsigned int pipe; |
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ALLOC_CACHE_ALIGN_BUFFER(umass_bbb_cbw_t, cbw, 1); |
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dir_in = US_DIRECTION(srb->cmd[0]); #ifdef BBB_COMDAT_TRACE |
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printf("dir %d lun %d cmdlen %d cmd %p datalen %lu pdata %p ", |
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dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen, srb->pdata); |
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if (srb->cmdlen) { |
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for (result = 0; result < srb->cmdlen; result++) |
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printf("cmd[%d] %#x ", result, srb->cmd[result]); printf(" "); } #endif /* sanity checks */ if (!(srb->cmdlen <= CBWCDBLENGTH)) { |
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|
504 505 |
debug("usb_stor_BBB_comdat:cmdlen too large "); |
149dded2b
|
506 507 508 509 510 |
return -1; } /* always OUT to the ep */ pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); |
f57661394
|
511 512 513 514 515 516 |
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; |
149dded2b
|
517 518 |
/* copy the command data into the CBW command data buffer */ /* DST SRC LEN!!! */ |
f57661394
|
519 520 |
memcpy(cbw->CBWCDB, srb->cmd, srb->cmdlen); result = usb_bulk_msg(us->pusb_dev, pipe, cbw, UMASS_BBB_CBW_SIZE, |
a0cb3fc31
|
521 |
&actlen, USB_CNTL_TIMEOUT * 5); |
149dded2b
|
522 |
if (result < 0) |
ceb4972a8
|
523 524 |
debug("usb_stor_BBB_comdat:usb_bulk_msg error "); |
149dded2b
|
525 526 |
return result; } |
affae2bff
|
527 528 529 |
/* FIXME: we also need a CBI_command which sets up the completion * interrupt, and waits for it */ |
199adb601
|
530 |
static int usb_stor_CB_comdat(ccb *srb, struct us_data *us) |
affae2bff
|
531 |
{ |
77ddac948
|
532 |
int result = 0; |
a0cb3fc31
|
533 |
int dir_in, retry; |
affae2bff
|
534 535 |
unsigned int pipe; unsigned long status; |
a0cb3fc31
|
536 537 |
retry = 5; dir_in = US_DIRECTION(srb->cmd[0]); |
affae2bff
|
538 |
|
a0cb3fc31
|
539 540 541 542 543 544 |
if (dir_in) pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); else pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); while (retry--) { |
ceb4972a8
|
545 546 547 |
debug("CBI gets a command: Try %d ", 5 - retry); #ifdef DEBUG |
affae2bff
|
548 549 550 |
usb_show_srb(srb); #endif /* let's send the command via the control pipe */ |
a0cb3fc31
|
551 552 553 554 |
result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev , 0), US_CBI_ADSC, USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
affae2bff
|
555 |
0, us->ifnum, |
a0cb3fc31
|
556 557 |
srb->cmd, srb->cmdlen, USB_CNTL_TIMEOUT * 5); |
ceb4972a8
|
558 559 560 |
debug("CB_transport: control msg returned %d, status %lX ", result, us->pusb_dev->status); |
affae2bff
|
561 562 |
/* check the return code for the command */ if (result < 0) { |
a0cb3fc31
|
563 564 |
if (us->pusb_dev->status & USB_ST_STALLED) { status = us->pusb_dev->status; |
ceb4972a8
|
565 566 567 |
debug(" stall during command found," \ " clear pipe "); |
a0cb3fc31
|
568 569 570 |
usb_clear_halt(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0)); us->pusb_dev->status = status; |
affae2bff
|
571 |
} |
ceb4972a8
|
572 573 574 575 |
debug(" error during command %02X" \ " Stat = %lX ", srb->cmd[0], us->pusb_dev->status); |
affae2bff
|
576 577 578 |
return result; } /* transfer the data payload for this command, if one exists*/ |
ceb4972a8
|
579 580 581 582 |
debug("CB_transport: control msg returned %d," \ " direction is %s to go 0x%lx ", result, dir_in ? "IN" : "OUT", srb->datalen); |
affae2bff
|
583 |
if (srb->datalen) { |
a0cb3fc31
|
584 585 |
result = us_one_transfer(us, pipe, (char *)srb->pdata, srb->datalen); |
ceb4972a8
|
586 587 588 589 590 |
debug("CBI attempted to transfer data," \ " result is %d status %lX, len %d ", result, us->pusb_dev->status, us->pusb_dev->act_len); |
a0cb3fc31
|
591 |
if (!(us->pusb_dev->status & USB_ST_NAK_REC)) |
affae2bff
|
592 593 594 595 596 597 598 599 600 |
break; } /* if (srb->datalen) */ else break; } /* return result */ return result; } |
199adb601
|
601 |
static int usb_stor_CBI_get_status(ccb *srb, struct us_data *us) |
affae2bff
|
602 603 |
{ int timeout; |
80885a9d5
|
604 |
us->ip_wanted = 1; |
a0cb3fc31
|
605 |
submit_int_msg(us->pusb_dev, us->irqpipe, |
80885a9d5
|
606 607 608 |
(void *) &us->ip_data, us->irqmaxp, us->irqinterval); timeout = 1000; while (timeout--) { |
199adb601
|
609 |
if ((volatile int *) us->ip_wanted == NULL) |
affae2bff
|
610 |
break; |
5b84dd67c
|
611 |
mdelay(10); |
affae2bff
|
612 613 |
} if (us->ip_wanted) { |
a0cb3fc31
|
614 615 |
printf(" Did not get interrupt on CBI "); |
affae2bff
|
616 617 618 |
us->ip_wanted = 0; return USB_STOR_TRANSPORT_ERROR; } |
ceb4972a8
|
619 620 621 622 |
debug("Got interrupt data 0x%x, transfered %d status 0x%lX ", us->ip_data, us->pusb_dev->irq_act_len, us->pusb_dev->irq_status); |
affae2bff
|
623 624 625 626 627 |
/* 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 */ |
80885a9d5
|
628 629 |
else if (us->ip_data) return USB_STOR_TRANSPORT_FAILED; |
affae2bff
|
630 |
else |
80885a9d5
|
631 |
return USB_STOR_TRANSPORT_GOOD; |
affae2bff
|
632 633 634 |
} /* otherwise, we interpret the data normally */ switch (us->ip_data) { |
80885a9d5
|
635 636 637 638 639 640 641 |
case 0x0001: return USB_STOR_TRANSPORT_GOOD; case 0x0002: return USB_STOR_TRANSPORT_FAILED; default: return USB_STOR_TRANSPORT_ERROR; } /* switch */ |
affae2bff
|
642 643 644 645 646 |
return USB_STOR_TRANSPORT_ERROR; } #define USB_TRANSPORT_UNKNOWN_RETRY 5 #define USB_TRANSPORT_NOT_READY_RETRY 10 |
149dded2b
|
647 |
/* clear a stall on an endpoint - special for BBB devices */ |
199adb601
|
648 |
static int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt) |
149dded2b
|
649 650 651 652 |
{ int result; /* ENDPOINT_HALT = 0, so set value to 0 */ |
a0cb3fc31
|
653 |
result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0), |
149dded2b
|
654 |
USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, |
199adb601
|
655 |
0, endpt, NULL, 0, USB_CNTL_TIMEOUT * 5); |
149dded2b
|
656 657 |
return result; } |
199adb601
|
658 |
static int usb_stor_BBB_transport(ccb *srb, struct us_data *us) |
149dded2b
|
659 660 661 662 663 |
{ int result, retry; int dir_in; int actlen, data_actlen; unsigned int pipe, pipein, pipeout; |
f57661394
|
664 |
ALLOC_CACHE_ALIGN_BUFFER(umass_bbb_csw_t, csw, 1); |
149dded2b
|
665 666 667 668 669 670 671 672 |
#ifdef BBB_XPORT_TRACE unsigned char *ptr; int index; #endif dir_in = US_DIRECTION(srb->cmd[0]); /* COMMAND phase */ |
ceb4972a8
|
673 674 |
debug("COMMAND phase "); |
149dded2b
|
675 676 |
result = usb_stor_BBB_comdat(srb, us); if (result < 0) { |
ceb4972a8
|
677 678 679 |
debug("failed to send CBW status %ld ", us->pusb_dev->status); |
149dded2b
|
680 681 682 |
usb_stor_BBB_reset(us); return USB_STOR_TRANSPORT_FAILED; } |
3e8581bb9
|
683 684 |
if (!(us->flags & USB_READY)) mdelay(5); |
149dded2b
|
685 686 687 |
pipein = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); pipeout = usb_sndbulkpipe(us->pusb_dev, us->ep_out); /* DATA phase + error handling */ |
149dded2b
|
688 689 690 691 |
data_actlen = 0; /* no data, go immediately to the STATUS phase */ if (srb->datalen == 0) goto st; |
ceb4972a8
|
692 693 |
debug("DATA phase "); |
149dded2b
|
694 695 696 697 |
if (dir_in) pipe = pipein; else pipe = pipeout; |
a0cb3fc31
|
698 699 |
result = usb_bulk_msg(us->pusb_dev, pipe, srb->pdata, srb->datalen, &data_actlen, USB_CNTL_TIMEOUT * 5); |
149dded2b
|
700 |
/* special handling of STALL in DATA phase */ |
a0cb3fc31
|
701 |
if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) { |
ceb4972a8
|
702 703 |
debug("DATA:stall "); |
149dded2b
|
704 |
/* clear the STALL on the endpoint */ |
a0cb3fc31
|
705 706 |
result = usb_stor_BBB_clear_endpt_stall(us, dir_in ? us->ep_in : us->ep_out); |
149dded2b
|
707 708 709 710 711 |
if (result >= 0) /* continue on to STATUS phase */ goto st; } if (result < 0) { |
ceb4972a8
|
712 713 714 |
debug("usb_bulk_msg error status %ld ", us->pusb_dev->status); |
149dded2b
|
715 716 717 718 719 720 721 722 723 724 |
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(" "); #endif /* STATUS phase + error handling */ |
a0cb3fc31
|
725 |
st: |
149dded2b
|
726 |
retry = 0; |
a0cb3fc31
|
727 |
again: |
ceb4972a8
|
728 729 |
debug("STATUS phase "); |
f57661394
|
730 |
result = usb_bulk_msg(us->pusb_dev, pipein, csw, UMASS_BBB_CSW_SIZE, |
9c998aa83
|
731 |
&actlen, USB_CNTL_TIMEOUT*5); |
149dded2b
|
732 |
/* special handling of STALL in STATUS phase */ |
a0cb3fc31
|
733 734 |
if ((result < 0) && (retry < 1) && (us->pusb_dev->status & USB_ST_STALLED)) { |
ceb4972a8
|
735 736 |
debug("STATUS:stall "); |
149dded2b
|
737 738 739 740 741 742 743 |
/* 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) { |
ceb4972a8
|
744 745 746 |
debug("usb_bulk_msg error status %ld ", us->pusb_dev->status); |
149dded2b
|
747 748 749 750 |
usb_stor_BBB_reset(us); return USB_STOR_TRANSPORT_FAILED; } #ifdef BBB_XPORT_TRACE |
f57661394
|
751 |
ptr = (unsigned char *)csw; |
149dded2b
|
752 753 754 755 756 757 |
for (index = 0; index < UMASS_BBB_CSW_SIZE; index++) printf("ptr[%d] %#x ", index, ptr[index]); printf(" "); #endif /* misuse pipe to get the residue */ |
f57661394
|
758 |
pipe = le32_to_cpu(csw->dCSWDataResidue); |
149dded2b
|
759 760 |
if (pipe == 0 && srb->datalen != 0 && srb->datalen - data_actlen != 0) pipe = srb->datalen - data_actlen; |
f57661394
|
761 |
if (CSWSIGNATURE != le32_to_cpu(csw->dCSWSignature)) { |
ceb4972a8
|
762 763 |
debug("!CSWSIGNATURE "); |
149dded2b
|
764 765 |
usb_stor_BBB_reset(us); return USB_STOR_TRANSPORT_FAILED; |
f57661394
|
766 |
} else if ((CBWTag - 1) != le32_to_cpu(csw->dCSWTag)) { |
ceb4972a8
|
767 768 |
debug("!Tag "); |
149dded2b
|
769 770 |
usb_stor_BBB_reset(us); return USB_STOR_TRANSPORT_FAILED; |
f57661394
|
771 |
} else if (csw->bCSWStatus > CSWSTATUS_PHASE) { |
ceb4972a8
|
772 773 |
debug(">PHASE "); |
149dded2b
|
774 775 |
usb_stor_BBB_reset(us); return USB_STOR_TRANSPORT_FAILED; |
f57661394
|
776 |
} else if (csw->bCSWStatus == CSWSTATUS_PHASE) { |
ceb4972a8
|
777 778 |
debug("=PHASE "); |
149dded2b
|
779 780 781 |
usb_stor_BBB_reset(us); return USB_STOR_TRANSPORT_FAILED; } else if (data_actlen > srb->datalen) { |
ceb4972a8
|
782 783 784 |
debug("transferred %dB instead of %ldB ", data_actlen, srb->datalen); |
149dded2b
|
785 |
return USB_STOR_TRANSPORT_FAILED; |
f57661394
|
786 |
} else if (csw->bCSWStatus == CSWSTATUS_FAILED) { |
ceb4972a8
|
787 788 |
debug("FAILED "); |
149dded2b
|
789 790 791 792 793 |
return USB_STOR_TRANSPORT_FAILED; } return result; } |
199adb601
|
794 |
static int usb_stor_CB_transport(ccb *srb, struct us_data *us) |
affae2bff
|
795 |
{ |
a0cb3fc31
|
796 |
int result, status; |
affae2bff
|
797 798 |
ccb *psrb; ccb reqsrb; |
a0cb3fc31
|
799 |
int retry, notready; |
affae2bff
|
800 |
|
d0ff51ba5
|
801 |
psrb = &reqsrb; |
a0cb3fc31
|
802 803 804 |
status = USB_STOR_TRANSPORT_GOOD; retry = 0; notready = 0; |
affae2bff
|
805 806 |
/* issue the command */ do_retry: |
a0cb3fc31
|
807 |
result = usb_stor_CB_comdat(srb, us); |
ceb4972a8
|
808 809 810 |
debug("command / Data returned %d, status %lX ", result, us->pusb_dev->status); |
affae2bff
|
811 |
/* if this is an CBI Protocol, get IRQ */ |
a0cb3fc31
|
812 813 |
if (us->protocol == US_PR_CBI) { status = usb_stor_CBI_get_status(srb, us); |
affae2bff
|
814 |
/* if the status is error, report it */ |
a0cb3fc31
|
815 |
if (status == USB_STOR_TRANSPORT_ERROR) { |
ceb4972a8
|
816 817 |
debug(" USB CBI Command Error "); |
affae2bff
|
818 819 |
return status; } |
a0cb3fc31
|
820 821 822 823 824 |
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) { |
ceb4972a8
|
825 826 |
debug(" USB CBI Command Good "); |
affae2bff
|
827 828 829 830 831 832 |
return status; } } } /* do we have to issue an auto request? */ /* HERE we have to check the result */ |
a0cb3fc31
|
833 |
if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) { |
ceb4972a8
|
834 835 |
debug("ERROR %lX ", us->pusb_dev->status); |
affae2bff
|
836 837 838 |
us->transport_reset(us); return USB_STOR_TRANSPORT_ERROR; } |
a0cb3fc31
|
839 840 841 842 |
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 */ |
ceb4972a8
|
843 844 |
debug("No auto request and good "); |
affae2bff
|
845 846 847 |
return USB_STOR_TRANSPORT_GOOD; } /* issue an request_sense */ |
a0cb3fc31
|
848 849 850 851 852 |
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; |
d0ff51ba5
|
853 |
psrb->pdata = &srb->sense_buf[0]; |
a0cb3fc31
|
854 |
psrb->cmdlen = 12; |
affae2bff
|
855 |
/* issue the command */ |
a0cb3fc31
|
856 |
result = usb_stor_CB_comdat(psrb, us); |
ceb4972a8
|
857 858 |
debug("auto request returned %d ", result); |
affae2bff
|
859 |
/* if this is an CBI Protocol, get IRQ */ |
a0cb3fc31
|
860 861 862 863 |
if (us->protocol == US_PR_CBI) status = usb_stor_CBI_get_status(psrb, us); if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) { |
ceb4972a8
|
864 865 866 |
debug(" AUTO REQUEST ERROR %ld ", us->pusb_dev->status); |
affae2bff
|
867 868 |
return USB_STOR_TRANSPORT_ERROR; } |
ceb4972a8
|
869 870 871 872 |
debug("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X ", srb->sense_buf[0], srb->sense_buf[2], srb->sense_buf[12], srb->sense_buf[13]); |
affae2bff
|
873 |
/* Check the auto request result */ |
a0cb3fc31
|
874 875 876 877 |
if ((srb->sense_buf[2] == 0) && (srb->sense_buf[12] == 0) && (srb->sense_buf[13] == 0)) { /* ok, no sense */ |
affae2bff
|
878 |
return USB_STOR_TRANSPORT_GOOD; |
a0cb3fc31
|
879 |
} |
affae2bff
|
880 |
/* Check the auto request result */ |
a0cb3fc31
|
881 882 883 |
switch (srb->sense_buf[2]) { case 0x01: /* Recovered Error */ |
149dded2b
|
884 |
return USB_STOR_TRANSPORT_GOOD; |
80885a9d5
|
885 |
break; |
a0cb3fc31
|
886 887 888 889 890 891 892 893 |
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) ", srb->cmd[0], srb->sense_buf[0], srb->sense_buf[2], srb->sense_buf[12], srb->sense_buf[13]); |
149dded2b
|
894 895 |
return USB_STOR_TRANSPORT_FAILED; } else { |
5b84dd67c
|
896 |
mdelay(100); |
149dded2b
|
897 898 899 900 |
goto do_retry; } break; default: |
a0cb3fc31
|
901 902 903 904 905 906 |
if (retry++ > USB_TRANSPORT_UNKNOWN_RETRY) { printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X" " 0x%02X ", srb->cmd[0], srb->sense_buf[0], srb->sense_buf[2], srb->sense_buf[12], srb->sense_buf[13]); |
149dded2b
|
907 |
return USB_STOR_TRANSPORT_FAILED; |
a0cb3fc31
|
908 |
} else |
149dded2b
|
909 |
goto do_retry; |
149dded2b
|
910 |
break; |
affae2bff
|
911 912 913 |
} return USB_STOR_TRANSPORT_FAILED; } |
a0cb3fc31
|
914 |
static int usb_inquiry(ccb *srb, struct us_data *ss) |
affae2bff
|
915 |
{ |
a0cb3fc31
|
916 917 |
int retry, i; retry = 5; |
affae2bff
|
918 |
do { |
a0cb3fc31
|
919 920 |
memset(&srb->cmd[0], 0, 12); srb->cmd[0] = SCSI_INQUIRY; |
99e9ed1f4
|
921 |
srb->cmd[1] = srb->lun << 5; |
a0cb3fc31
|
922 923 924 925 |
srb->cmd[4] = 36; srb->datalen = 36; srb->cmdlen = 12; i = ss->transport(srb, ss); |
ceb4972a8
|
926 927 |
debug("inquiry returns %d ", i); |
a0cb3fc31
|
928 |
if (i == 0) |
affae2bff
|
929 |
break; |
fac71cc49
|
930 |
} while (--retry); |
149dded2b
|
931 |
|
a0cb3fc31
|
932 |
if (!retry) { |
affae2bff
|
933 934 935 936 937 938 |
printf("error in inquiry "); return -1; } return 0; } |
a0cb3fc31
|
939 |
static int usb_request_sense(ccb *srb, struct us_data *ss) |
affae2bff
|
940 941 |
{ char *ptr; |
80885a9d5
|
942 |
|
a0cb3fc31
|
943 944 945 |
ptr = (char *)srb->pdata; memset(&srb->cmd[0], 0, 12); srb->cmd[0] = SCSI_REQ_SENSE; |
99e9ed1f4
|
946 |
srb->cmd[1] = srb->lun << 5; |
a0cb3fc31
|
947 948 |
srb->cmd[4] = 18; srb->datalen = 18; |
d0ff51ba5
|
949 |
srb->pdata = &srb->sense_buf[0]; |
a0cb3fc31
|
950 951 |
srb->cmdlen = 12; ss->transport(srb, ss); |
ceb4972a8
|
952 953 954 955 |
debug("Request Sense returned %02X %02X %02X ", srb->sense_buf[2], srb->sense_buf[12], srb->sense_buf[13]); |
a0cb3fc31
|
956 |
srb->pdata = (uchar *)ptr; |
affae2bff
|
957 958 |
return 0; } |
a0cb3fc31
|
959 |
static int usb_test_unit_ready(ccb *srb, struct us_data *ss) |
affae2bff
|
960 |
{ |
9c998aa83
|
961 |
int retries = 10; |
149dded2b
|
962 |
|
affae2bff
|
963 |
do { |
a0cb3fc31
|
964 965 |
memset(&srb->cmd[0], 0, 12); srb->cmd[0] = SCSI_TST_U_RDY; |
99e9ed1f4
|
966 |
srb->cmd[1] = srb->lun << 5; |
a0cb3fc31
|
967 968 |
srb->datalen = 0; srb->cmdlen = 12; |
3e8581bb9
|
969 970 |
if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) { ss->flags |= USB_READY; |
affae2bff
|
971 |
return 0; |
3e8581bb9
|
972 |
} |
a0cb3fc31
|
973 |
usb_request_sense(srb, ss); |
8b57e2f08
|
974 975 976 977 978 979 980 981 982 983 |
/* * 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; |
5b84dd67c
|
984 |
mdelay(100); |
a0cb3fc31
|
985 |
} while (retries--); |
149dded2b
|
986 |
|
affae2bff
|
987 988 |
return -1; } |
a0cb3fc31
|
989 |
static int usb_read_capacity(ccb *srb, struct us_data *ss) |
affae2bff
|
990 991 |
{ int retry; |
a0cb3fc31
|
992 993 |
/* XXX retries */ retry = 3; |
affae2bff
|
994 |
do { |
a0cb3fc31
|
995 996 |
memset(&srb->cmd[0], 0, 12); srb->cmd[0] = SCSI_RD_CAPAC; |
99e9ed1f4
|
997 |
srb->cmd[1] = srb->lun << 5; |
a0cb3fc31
|
998 999 1000 |
srb->datalen = 8; srb->cmdlen = 12; if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD) |
affae2bff
|
1001 |
return 0; |
a0cb3fc31
|
1002 |
} while (retry--); |
149dded2b
|
1003 |
|
affae2bff
|
1004 1005 |
return -1; } |
a0cb3fc31
|
1006 1007 |
static int usb_read_10(ccb *srb, struct us_data *ss, unsigned long start, unsigned short blocks) |
affae2bff
|
1008 |
{ |
a0cb3fc31
|
1009 1010 |
memset(&srb->cmd[0], 0, 12); srb->cmd[0] = SCSI_READ10; |
99e9ed1f4
|
1011 |
srb->cmd[1] = srb->lun << 5; |
a0cb3fc31
|
1012 1013 1014 1015 1016 1017 1018 |
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; |
ceb4972a8
|
1019 1020 |
debug("read10: start %lx blocks %x ", start, blocks); |
a0cb3fc31
|
1021 |
return ss->transport(srb, ss); |
affae2bff
|
1022 |
} |
127e10842
|
1023 1024 1025 1026 1027 |
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; |
99e9ed1f4
|
1028 |
srb->cmd[1] = srb->lun << 5; |
127e10842
|
1029 1030 1031 1032 1033 1034 1035 |
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; |
ceb4972a8
|
1036 1037 |
debug("write10: start %lx blocks %x ", start, blocks); |
127e10842
|
1038 1039 |
return ss->transport(srb, ss); } |
affae2bff
|
1040 |
|
ddde6b7cf
|
1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 |
#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) { |
a0cb3fc31
|
1057 1058 1059 |
strncpy((char *)vendor, "SMSC", max_vendor_len); strncpy((char *)product, "Flash Media Cntrller", max_product_len); |
ddde6b7cf
|
1060 1061 1062 |
} } #endif /* CONFIG_USB_BIN_FIXUP */ |
ff8fef566
|
1063 |
unsigned long usb_stor_read(int device, lbaint_t blknr, |
e81e79ede
|
1064 |
lbaint_t blkcnt, void *buffer) |
affae2bff
|
1065 |
{ |
e81e79ede
|
1066 1067 |
lbaint_t start, blks; uintptr_t buf_addr; |
affae2bff
|
1068 1069 |
unsigned short smallblks; struct usb_device *dev; |
5dd95cf93
|
1070 |
struct us_data *ss; |
a0cb3fc31
|
1071 |
int retry, i; |
f8d813e34
|
1072 1073 1074 1075 1076 1077 |
ccb *srb = &usb_ccb; if (blkcnt == 0) return 0; device &= 0xff; |
a0cb3fc31
|
1078 |
/* Setup device */ |
ceb4972a8
|
1079 1080 1081 |
debug(" usb_read: dev %d ", device); |
a0cb3fc31
|
1082 1083 1084 1085 |
dev = NULL; for (i = 0; i < USB_MAX_DEVICE; i++) { dev = usb_get_dev_index(i); if (dev == NULL) |
affae2bff
|
1086 |
return 0; |
a0cb3fc31
|
1087 |
if (dev->devnum == usb_dev_desc[device].target) |
affae2bff
|
1088 1089 |
break; } |
5dd95cf93
|
1090 |
ss = (struct us_data *)dev->privptr; |
affae2bff
|
1091 1092 |
usb_disable_asynch(1); /* asynch transfer not allowed */ |
a0cb3fc31
|
1093 1094 1095 1096 |
srb->lun = usb_dev_desc[device].lun; buf_addr = (unsigned long)buffer; start = blknr; blks = blkcnt; |
a0cb3fc31
|
1097 |
|
ceb4972a8
|
1098 1099 1100 1101 |
debug(" usb_read: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx ", device, start, blks, buf_addr); |
a0cb3fc31
|
1102 |
|
affae2bff
|
1103 |
do { |
a0cb3fc31
|
1104 1105 1106 |
/* XXX need some comment here */ retry = 2; srb->pdata = (unsigned char *)buf_addr; |
4bee5c83e
|
1107 1108 |
if (blks > USB_MAX_XFER_BLK) smallblks = USB_MAX_XFER_BLK; |
a0cb3fc31
|
1109 1110 |
else smallblks = (unsigned short) blks; |
affae2bff
|
1111 |
retry_it: |
4bee5c83e
|
1112 |
if (smallblks == USB_MAX_XFER_BLK) |
affae2bff
|
1113 |
usb_show_progress(); |
a0cb3fc31
|
1114 1115 |
srb->datalen = usb_dev_desc[device].blksz * smallblks; srb->pdata = (unsigned char *)buf_addr; |
5dd95cf93
|
1116 |
if (usb_read_10(srb, ss, start, smallblks)) { |
ceb4972a8
|
1117 1118 |
debug("Read ERROR "); |
5dd95cf93
|
1119 |
usb_request_sense(srb, ss); |
a0cb3fc31
|
1120 |
if (retry--) |
affae2bff
|
1121 |
goto retry_it; |
a0cb3fc31
|
1122 |
blkcnt -= blks; |
affae2bff
|
1123 1124 |
break; } |
a0cb3fc31
|
1125 1126 1127 1128 |
start += smallblks; blks -= smallblks; buf_addr += srb->datalen; } while (blks != 0); |
3e8581bb9
|
1129 |
ss->flags &= ~USB_READY; |
a0cb3fc31
|
1130 |
|
ceb4972a8
|
1131 1132 1133 1134 |
debug("usb_read: end startblk " LBAF ", blccnt %x buffer %lx ", start, smallblks, buf_addr); |
a0cb3fc31
|
1135 |
|
affae2bff
|
1136 |
usb_disable_asynch(0); /* asynch transfer allowed */ |
4bee5c83e
|
1137 |
if (blkcnt >= USB_MAX_XFER_BLK) |
226fa9bb9
|
1138 1139 |
debug(" "); |
a0cb3fc31
|
1140 |
return blkcnt; |
affae2bff
|
1141 |
} |
ff8fef566
|
1142 |
unsigned long usb_stor_write(int device, lbaint_t blknr, |
e81e79ede
|
1143 |
lbaint_t blkcnt, const void *buffer) |
127e10842
|
1144 |
{ |
e81e79ede
|
1145 1146 |
lbaint_t start, blks; uintptr_t buf_addr; |
127e10842
|
1147 1148 |
unsigned short smallblks; struct usb_device *dev; |
5dd95cf93
|
1149 |
struct us_data *ss; |
127e10842
|
1150 1151 1152 1153 1154 1155 1156 1157 |
int retry, i; ccb *srb = &usb_ccb; if (blkcnt == 0) return 0; device &= 0xff; /* Setup device */ |
ceb4972a8
|
1158 1159 1160 |
debug(" usb_write: dev %d ", device); |
127e10842
|
1161 1162 1163 1164 1165 1166 1167 1168 |
dev = NULL; for (i = 0; i < USB_MAX_DEVICE; i++) { dev = usb_get_dev_index(i); if (dev == NULL) return 0; if (dev->devnum == usb_dev_desc[device].target) break; } |
5dd95cf93
|
1169 |
ss = (struct us_data *)dev->privptr; |
127e10842
|
1170 1171 1172 1173 1174 1175 1176 |
usb_disable_asynch(1); /* asynch transfer not allowed */ srb->lun = usb_dev_desc[device].lun; buf_addr = (unsigned long)buffer; start = blknr; blks = blkcnt; |
127e10842
|
1177 |
|
ceb4972a8
|
1178 1179 1180 1181 |
debug(" usb_write: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx ", device, start, blks, buf_addr); |
127e10842
|
1182 1183 1184 1185 1186 1187 1188 |
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; |
4bee5c83e
|
1189 1190 |
if (blks > USB_MAX_XFER_BLK) smallblks = USB_MAX_XFER_BLK; |
127e10842
|
1191 1192 1193 |
else smallblks = (unsigned short) blks; retry_it: |
4bee5c83e
|
1194 |
if (smallblks == USB_MAX_XFER_BLK) |
127e10842
|
1195 1196 1197 |
usb_show_progress(); srb->datalen = usb_dev_desc[device].blksz * smallblks; srb->pdata = (unsigned char *)buf_addr; |
5dd95cf93
|
1198 |
if (usb_write_10(srb, ss, start, smallblks)) { |
ceb4972a8
|
1199 1200 |
debug("Write ERROR "); |
5dd95cf93
|
1201 |
usb_request_sense(srb, ss); |
127e10842
|
1202 1203 1204 1205 1206 1207 1208 1209 1210 |
if (retry--) goto retry_it; blkcnt -= blks; break; } start += smallblks; blks -= smallblks; buf_addr += srb->datalen; } while (blks != 0); |
3e8581bb9
|
1211 |
ss->flags &= ~USB_READY; |
127e10842
|
1212 |
|
ceb4972a8
|
1213 1214 1215 |
debug("usb_write: end startblk " LBAF ", blccnt %x buffer %lx ", start, smallblks, buf_addr); |
127e10842
|
1216 1217 |
usb_disable_asynch(0); /* asynch transfer allowed */ |
4bee5c83e
|
1218 |
if (blkcnt >= USB_MAX_XFER_BLK) |
226fa9bb9
|
1219 1220 |
debug(" "); |
127e10842
|
1221 1222 1223 |
return blkcnt; } |
affae2bff
|
1224 1225 |
/* Probe to see if a new device is actually a Storage device */ |
a0cb3fc31
|
1226 1227 |
int usb_storage_probe(struct usb_device *dev, unsigned int ifnum, struct us_data *ss) |
affae2bff
|
1228 |
{ |
8f8bd565f
|
1229 |
struct usb_interface *iface; |
affae2bff
|
1230 |
int i; |
605bd75af
|
1231 |
struct usb_endpoint_descriptor *ep_desc; |
affae2bff
|
1232 1233 1234 1235 |
unsigned int flags = 0; int protocol = 0; int subclass = 0; |
affae2bff
|
1236 1237 1238 1239 1240 |
/* let's examine the device now */ iface = &dev->config.if_desc[ifnum]; #if 0 /* this is the place to patch some storage devices */ |
ceb4972a8
|
1241 1242 |
debug("iVendor %X iProduct %X ", dev->descriptor.idVendor, |
a0cb3fc31
|
1243 1244 1245 1246 |
dev->descriptor.idProduct); if ((dev->descriptor.idVendor) == 0x066b && (dev->descriptor.idProduct) == 0x0103) { |
ceb4972a8
|
1247 1248 |
debug("patched for E-USB "); |
affae2bff
|
1249 1250 1251 1252 1253 1254 |
protocol = US_PR_CB; subclass = US_SC_UFI; /* an assumption */ } #endif if (dev->descriptor.bDeviceClass != 0 || |
8f8bd565f
|
1255 1256 1257 |
iface->desc.bInterfaceClass != USB_CLASS_MASS_STORAGE || iface->desc.bInterfaceSubClass < US_SC_MIN || iface->desc.bInterfaceSubClass > US_SC_MAX) { |
affae2bff
|
1258 1259 1260 |
/* if it's not a mass storage, we go no further */ return 0; } |
9c998aa83
|
1261 |
memset(ss, 0, sizeof(struct us_data)); |
affae2bff
|
1262 |
/* At this point, we know we've got a live one */ |
ceb4972a8
|
1263 1264 1265 1266 |
debug(" USB Mass Storage device detected "); |
affae2bff
|
1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 |
/* 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 { |
8f8bd565f
|
1281 1282 |
ss->subclass = iface->desc.bInterfaceSubClass; ss->protocol = iface->desc.bInterfaceProtocol; |
affae2bff
|
1283 1284 1285 |
} /* set the handler pointers based on the protocol */ |
ceb4972a8
|
1286 |
debug("Transport: "); |
affae2bff
|
1287 1288 |
switch (ss->protocol) { case US_PR_CB: |
ceb4972a8
|
1289 1290 |
debug("Control/Bulk "); |
affae2bff
|
1291 1292 1293 1294 1295 |
ss->transport = usb_stor_CB_transport; ss->transport_reset = usb_stor_CB_reset; break; case US_PR_CBI: |
ceb4972a8
|
1296 1297 |
debug("Control/Bulk/Interrupt "); |
affae2bff
|
1298 1299 1300 |
ss->transport = usb_stor_CB_transport; ss->transport_reset = usb_stor_CB_reset; break; |
149dded2b
|
1301 |
case US_PR_BULK: |
ceb4972a8
|
1302 1303 |
debug("Bulk/Bulk/Bulk "); |
149dded2b
|
1304 1305 1306 |
ss->transport = usb_stor_BBB_transport; ss->transport_reset = usb_stor_BBB_reset; break; |
affae2bff
|
1307 |
default: |
80885a9d5
|
1308 1309 |
printf("USB Storage Transport unknown / not yet implemented "); |
affae2bff
|
1310 1311 1312 1313 1314 1315 1316 1317 1318 |
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. */ |
8f8bd565f
|
1319 |
for (i = 0; i < iface->desc.bNumEndpoints; i++) { |
605bd75af
|
1320 |
ep_desc = &iface->ep_desc[i]; |
affae2bff
|
1321 |
/* is it an BULK endpoint? */ |
605bd75af
|
1322 |
if ((ep_desc->bmAttributes & |
a0cb3fc31
|
1323 |
USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) { |
605bd75af
|
1324 1325 1326 |
if (ep_desc->bEndpointAddress & USB_DIR_IN) ss->ep_in = ep_desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; |
affae2bff
|
1327 |
else |
a0cb3fc31
|
1328 |
ss->ep_out = |
605bd75af
|
1329 |
ep_desc->bEndpointAddress & |
affae2bff
|
1330 1331 1332 1333 |
USB_ENDPOINT_NUMBER_MASK; } /* is it an interrupt endpoint? */ |
605bd75af
|
1334 1335 1336 1337 1338 |
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; |
affae2bff
|
1339 1340 |
} } |
ceb4972a8
|
1341 1342 1343 |
debug("Endpoints In %d Out %d Int %d ", ss->ep_in, ss->ep_out, ss->ep_int); |
affae2bff
|
1344 1345 |
/* Do some basic sanity checks, and bail if we find a problem */ |
8f8bd565f
|
1346 |
if (usb_set_interface(dev, iface->desc.bInterfaceNumber, 0) || |
affae2bff
|
1347 1348 |
!ss->ep_in || !ss->ep_out || (ss->protocol == US_PR_CBI && ss->ep_int == 0)) { |
ceb4972a8
|
1349 1350 |
debug("Problems with device "); |
affae2bff
|
1351 1352 1353 |
return 0; } /* set class specific stuff */ |
149dded2b
|
1354 1355 |
/* We only handle certain protocols. Currently, these are * the only ones. |
80885a9d5
|
1356 |
* The SFF8070 accepts the requests used in u-boot |
affae2bff
|
1357 |
*/ |
80885a9d5
|
1358 1359 |
if (ss->subclass != US_SC_UFI && ss->subclass != US_SC_SCSI && ss->subclass != US_SC_8070) { |
a0cb3fc31
|
1360 1361 |
printf("Sorry, protocol %d not yet supported. ", ss->subclass); |
affae2bff
|
1362 1363 |
return 0; } |
a0cb3fc31
|
1364 1365 1366 1367 |
if (ss->ep_int) { /* we had found an interrupt endpoint, prepare irq pipe * set up the IRQ pipe and handler */ |
affae2bff
|
1368 1369 1370 |
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); |
a0cb3fc31
|
1371 |
dev->irq_handle = usb_stor_irq; |
affae2bff
|
1372 |
} |
a0cb3fc31
|
1373 |
dev->privptr = (void *)ss; |
affae2bff
|
1374 1375 |
return 1; } |
a0cb3fc31
|
1376 1377 |
int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, block_dev_desc_t *dev_desc) |
affae2bff
|
1378 |
{ |
a0cb3fc31
|
1379 |
unsigned char perq, modi; |
f57661394
|
1380 1381 |
ALLOC_CACHE_ALIGN_BUFFER(unsigned long, cap, 2); ALLOC_CACHE_ALIGN_BUFFER(unsigned char, usb_stor_buf, 36); |
a0cb3fc31
|
1382 |
unsigned long *capacity, *blksz; |
9c998aa83
|
1383 |
ccb *pccb = &usb_ccb; |
9c998aa83
|
1384 1385 1386 1387 |
pccb->pdata = usb_stor_buf; dev_desc->target = dev->devnum; pccb->lun = dev_desc->lun; |
ceb4972a8
|
1388 1389 |
debug(" address %d ", dev_desc->target); |
affae2bff
|
1390 |
|
a0cb3fc31
|
1391 |
if (usb_inquiry(pccb, ss)) |
affae2bff
|
1392 |
return -1; |
095b8a379
|
1393 |
|
9c998aa83
|
1394 1395 |
perq = usb_stor_buf[0]; modi = usb_stor_buf[1]; |
a0cb3fc31
|
1396 1397 1398 1399 |
if ((perq & 0x1f) == 0x1f) { /* skip unknown devices */ return 0; |
affae2bff
|
1400 |
} |
a0cb3fc31
|
1401 1402 |
if ((modi&0x80) == 0x80) { /* drive is removable */ |
9c998aa83
|
1403 |
dev_desc->removable = 1; |
affae2bff
|
1404 |
} |
f57661394
|
1405 1406 1407 |
memcpy(&dev_desc->vendor[0], (const void *) &usb_stor_buf[8], 8); memcpy(&dev_desc->product[0], (const void *) &usb_stor_buf[16], 16); memcpy(&dev_desc->revision[0], (const void *) &usb_stor_buf[32], 4); |
9c998aa83
|
1408 1409 1410 |
dev_desc->vendor[8] = 0; dev_desc->product[16] = 0; dev_desc->revision[4] = 0; |
ddde6b7cf
|
1411 |
#ifdef CONFIG_USB_BIN_FIXUP |
a0cb3fc31
|
1412 1413 |
usb_bin_fixup(dev->descriptor, (uchar *)dev_desc->vendor, (uchar *)dev_desc->product); |
ddde6b7cf
|
1414 |
#endif /* CONFIG_USB_BIN_FIXUP */ |
ceb4972a8
|
1415 1416 1417 |
debug("ISO Vers %X, Response Data %X ", usb_stor_buf[2], usb_stor_buf[3]); |
a0cb3fc31
|
1418 1419 1420 1421 1422 1423 1424 1425 |
if (usb_test_unit_ready(pccb, ss)) { printf("Device NOT ready " " Request Sense returned %02X %02X %02X ", pccb->sense_buf[2], pccb->sense_buf[12], pccb->sense_buf[13]); if (dev_desc->removable == 1) { |
9c998aa83
|
1426 |
dev_desc->type = perq; |
affae2bff
|
1427 1428 |
return 1; } |
a0cb3fc31
|
1429 |
return 0; |
affae2bff
|
1430 |
} |
9c998aa83
|
1431 |
pccb->pdata = (unsigned char *)&cap[0]; |
a0cb3fc31
|
1432 1433 |
memset(pccb->pdata, 0, 8); if (usb_read_capacity(pccb, ss) != 0) { |
affae2bff
|
1434 1435 |
printf("READ_CAP ERROR "); |
9c998aa83
|
1436 1437 |
cap[0] = 2880; cap[1] = 0x200; |
affae2bff
|
1438 |
} |
3e8581bb9
|
1439 |
ss->flags &= ~USB_READY; |
ceb4972a8
|
1440 1441 |
debug("Read Capacity returns: 0x%lx, 0x%lx ", cap[0], cap[1]); |
affae2bff
|
1442 |
#if 0 |
a0cb3fc31
|
1443 1444 |
if (cap[0] > (0x200000 * 10)) /* greater than 10 GByte */ cap[0] >>= 16; |
affae2bff
|
1445 |
#endif |
c918261c6
|
1446 1447 |
cap[0] = cpu_to_be32(cap[0]); cap[1] = cpu_to_be32(cap[1]); |
149dded2b
|
1448 |
/* this assumes bigendian! */ |
9c998aa83
|
1449 1450 1451 |
cap[0] += 1; capacity = &cap[0]; blksz = &cap[1]; |
ceb4972a8
|
1452 1453 |
debug("Capacity = 0x%lx, blocksz = 0x%lx ", *capacity, *blksz); |
9c998aa83
|
1454 1455 |
dev_desc->lba = *capacity; dev_desc->blksz = *blksz; |
0472fbfd3
|
1456 |
dev_desc->log2blksz = LOG2(dev_desc->blksz); |
9c998aa83
|
1457 |
dev_desc->type = perq; |
ceb4972a8
|
1458 1459 1460 1461 |
debug(" address %d ", dev_desc->target); debug("partype: %d ", dev_desc->part_type); |
affae2bff
|
1462 1463 |
init_part(dev_desc); |
ceb4972a8
|
1464 1465 |
debug("partype: %d ", dev_desc->part_type); |
affae2bff
|
1466 1467 |
return 1; } |