diff options
Diffstat (limited to 'drivers/usb/usb_storage.c')
| -rw-r--r-- | drivers/usb/usb_storage.c | 1237 |
1 files changed, 0 insertions, 1237 deletions
diff --git a/drivers/usb/usb_storage.c b/drivers/usb/usb_storage.c deleted file mode 100644 index 3f9be2ed80..0000000000 --- a/drivers/usb/usb_storage.c +++ /dev/null @@ -1,1237 +0,0 @@ -/* - * 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 <gj@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. - * Nota bene: if you are using the BBB support with a little-endian - * CPU then you MUST define LITTLEENDIAN in the configuration file! - */ - - -#include <common.h> -#include <command.h> -#include <asm/processor.h> - - -#include <usb.h> - -#undef USB_STOR_DEBUG -#undef BBB_COMDAT_TRACE -#undef BBB_XPORT_TRACE - -#ifdef USB_STOR_DEBUG -#define USB_STOR_PRINTF(fmt,args...) printf (fmt ,##args) -#else -#define USB_STOR_PRINTF(fmt,args...) -#endif - -#include <scsi.h> -/* 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[512]; -static ccb usb_ccb; - -/* - * 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 = 0; - -/* 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 = 0; /* 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*, struct us_data*); -typedef int (*trans_reset)(struct us_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 - - -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); -unsigned long usb_stor_read(int device, unsigned long blknr, unsigned long blkcnt, unsigned long *buffer); -struct usb_device * usb_get_dev_index(int index); -void uhci_show_temp_int_td(void); - -block_dev_desc_t *usb_stor_get_dev(int index) -{ - return &usb_dev_desc[index]; -} - - -void usb_show_progress(void) -{ - printf("."); -} - -/********************************************************************************* - * show info on storage devices; 'usb start/init' must be invoked earlier - * as we only retrieve structures populated during devices initialization - */ -void usb_stor_info(void) -{ - int i; - - if (usb_max_devs > 0) - for (i = 0; i < usb_max_devs; i++) { - printf (" Device %d: ", i); -#warning dev_print missing - printf("call dev_print\n"); -// dev_print(&usb_dev_desc[i]); - } - else - printf("No storage devices, perhaps not 'usb start'ed..?\n"); -} - -/********************************************************************************* - * scan the usb and reports device info - * 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; - - /* GJ */ - memset(usb_stor_buf, 0, sizeof(usb_stor_buf)); - - if(mode==1) { - printf(" scanning bus for storage devices... "); - } - usb_disable_asynch(1); /* asynch transfer not allowed */ - - 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_max_devs=0; - for(i=0;i<USB_MAX_DEVICE;i++) { - dev=usb_get_dev_index(i); /* get device */ - USB_STOR_PRINTF("i=%d\n",i); - if(dev==NULL) { - break; /* no more devices avaiable */ - } - if(usb_storage_probe(dev,0,&usb_stor[usb_max_devs])) { /* ok, it is a storage devices */ - /* get info and fill it in */ - if(usb_stor_get_info(dev, &usb_stor[usb_max_devs], &usb_dev_desc[usb_max_devs])) - usb_max_devs++; - } /* if storage device */ - if(usb_max_devs==USB_MAX_STOR_DEV) { - printf("max USB Storage Device reached: %d stopping\n",usb_max_devs); - break; - } - } /* for */ - - usb_disable_asynch(0); /* asynch transfer allowed */ - printf("%d Storage Device(s) found\n", usb_max_devs); - if(usb_max_devs>0) - return 0; - else - 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; - printf("SRB: len %d datalen 0x%lX\n ",pccb->cmdlen,pccb->datalen); - for(i=0;i<12;i++) { - printf("%02X ",pccb->cmd[i]); - } - printf("\n"); -} - -static void display_int_status(unsigned long tmp) -{ - printf("Status: %s %s %s %s %s %s %s\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 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 */ - USB_STOR_PRINTF("Bulk xfer 0x%x(%d) try #%d\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\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\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\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\n"); - return result; - } - if(this_xfer == partial) { - USB_STOR_PRINTF("bulk transferred with error %d, but data ok\n",us->pusb_dev->status); - return 0; - } - /* if our try counter reaches 0, bail out */ - USB_STOR_PRINTF("bulk transferred with error %d, data %d\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\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\n"); - return -1; - } - - /* long wait for reset */ - wait_ms(150); - USB_STOR_PRINTF("BBB_reset result %d: status %X reset\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\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\n",result,us->pusb_dev->status); - USB_STOR_PRINTF("BBB_reset done\n"); - return 0; -} - -/* FIXME: this reset function doesn't really reset the port, and it - * should. Actually it should probably do what it's doing here, and - * reset the port physically - */ -static int usb_stor_CB_reset(struct us_data *us) -{ - unsigned char cmd[12]; - int result; - - USB_STOR_PRINTF("CB_reset\n"); - memset(cmd, 0xFF, sizeof(cmd)); - cmd[0] = SCSI_SEND_DIAG; - cmd[1] = 4; - result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev,0), - US_CBI_ADSC, USB_TYPE_CLASS | USB_RECIP_INTERFACE, - 0, us->ifnum, cmd, sizeof(cmd), USB_CNTL_TIMEOUT*5); - - /* long wait for reset */ - wait_ms(1500); - USB_STOR_PRINTF("CB_reset result %d: status %X clearing endpoint halt\n",result,us->pusb_dev->status); - usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_in)); - usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_out)); - - USB_STOR_PRINTF("CB_reset done\n"); - return 0; -} - -/* - * Set up the command for a BBB device. Note that the actual SCSI - * command is copied into cbw.CBWCDB. - */ -int usb_stor_BBB_comdat(ccb *srb, struct us_data *us) -{ - int result; - int actlen; - int dir_in; - unsigned int pipe; - umass_bbb_cbw_t cbw; - - dir_in = US_DIRECTION(srb->cmd[0]); - -#ifdef BBB_COMDAT_TRACE - printf("dir %d lun %d cmdlen %d cmd %p datalen %d pdata %p\n", dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen, srb->pdata); - if (srb->cmdlen) { - for(result = 0;result < srb->cmdlen;result++) - printf("cmd[%d] %#x ", result, srb->cmd[result]); - printf("\n"); - } -#endif - /* sanity checks */ - if (!(srb->cmdlen <= CBWCDBLENGTH)) { - USB_STOR_PRINTF("usb_stor_BBB_comdat:cmdlen too large\n"); - return -1; - } - - /* always OUT to the ep */ - pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); - - cbw.dCBWSignature = swap_32(CBWSIGNATURE); - cbw.dCBWTag = swap_32(CBWTag++); - cbw.dCBWDataTransferLength = swap_32(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\n"); - 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 dir_in,retry; - unsigned int pipe; - unsigned long status; - - retry=5; - dir_in=US_DIRECTION(srb->cmd[0]); - - if(dir_in) - pipe=usb_rcvbulkpipe(us->pusb_dev, us->ep_in); - else - pipe=usb_sndbulkpipe(us->pusb_dev, us->ep_out); - while(retry--) { - USB_STOR_PRINTF("CBI gets a command: Try %d\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\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\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\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\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 %lX, len %d\n", result,us->pusb_dev->status,us->pusb_dev->act_len); - if(!(us->pusb_dev->status & USB_ST_NAK_REC)) - break; - } /* if (srb->datalen) */ - else - break; - } - /* return result */ - - return result; -} - - -int usb_stor_CBI_get_status (ccb * srb, struct us_data *us) -{ - int timeout; - - us->ip_wanted = 1; - submit_int_msg (us->pusb_dev, us->irqpipe, - (void *) &us->ip_data, us->irqmaxp, us->irqinterval); - timeout = 1000; - while (timeout--) { - if ((volatile int *) us->ip_wanted == 0) - break; - wait_ms (10); - } - if (us->ip_wanted) { - printf (" Did not get interrupt on CBI\n"); - us->ip_wanted = 0; - return USB_STOR_TRANSPORT_ERROR; - } - USB_STOR_PRINTF - ("Got interrupt data 0x%x, transfered %d status 0x%lX\n", - us->ip_data, us->pusb_dev->irq_act_len, - us->pusb_dev->irq_status); - /* UFI gives us ASC and ASCQ, like a request sense */ - if (us->subclass == US_SC_UFI) { - if (srb->cmd[0] == SCSI_REQ_SENSE || - srb->cmd[0] == SCSI_INQUIRY) - return USB_STOR_TRANSPORT_GOOD; /* Good */ - else if (us->ip_data) - return USB_STOR_TRANSPORT_FAILED; - else - return USB_STOR_TRANSPORT_GOOD; - } - /* otherwise, we interpret the data normally */ - switch (us->ip_data) { - case 0x0001: - return USB_STOR_TRANSPORT_GOOD; - case 0x0002: - return USB_STOR_TRANSPORT_FAILED; - default: - return USB_STOR_TRANSPORT_ERROR; - } /* switch */ - return USB_STOR_TRANSPORT_ERROR; -} - -#define USB_TRANSPORT_UNKNOWN_RETRY 5 -#define USB_TRANSPORT_NOT_READY_RETRY 10 - -/* clear a stall on an endpoint - special for BBB devices */ -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; - umass_bbb_csw_t csw; -#ifdef BBB_XPORT_TRACE - unsigned char *ptr; - int index; -#endif - - dir_in = US_DIRECTION(srb->cmd[0]); - - /* COMMAND phase */ - USB_STOR_PRINTF("COMMAND phase\n"); - result = usb_stor_BBB_comdat(srb, us); - if (result < 0) { - USB_STOR_PRINTF("failed to send CBW status %ld\n", - us->pusb_dev->status); - usb_stor_BBB_reset(us); - 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\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\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 %ld\n", - us->pusb_dev->status); - usb_stor_BBB_reset(us); - return USB_STOR_TRANSPORT_FAILED; - } -#ifdef BBB_XPORT_TRACE - for (index = 0; index < data_actlen; index++) - printf("pdata[%d] %#x ", index, srb->pdata[index]); - printf("\n"); -#endif - /* STATUS phase + error handling */ - st: - retry = 0; - again: - USB_STOR_PRINTF("STATUS phase\n"); - result = usb_bulk_msg(us->pusb_dev, pipein, &csw, UMASS_BBB_CSW_SIZE, - &actlen, USB_CNTL_TIMEOUT*5); - - /* special handling of STALL in STATUS phase */ - if((result < 0) && (retry < 1) && (us->pusb_dev->status & USB_ST_STALLED)) { - USB_STOR_PRINTF("STATUS:stall\n"); - /* clear the STALL on the endpoint */ - result = usb_stor_BBB_clear_endpt_stall(us, us->ep_in); - if (result >= 0 && (retry++ < 1)) - /* do a retry */ - goto again; - } - if (result < 0) { - USB_STOR_PRINTF("usb_bulk_msg error status %ld\n", - us->pusb_dev->status); - usb_stor_BBB_reset(us); - return USB_STOR_TRANSPORT_FAILED; - } -#ifdef BBB_XPORT_TRACE - ptr = (unsigned char *)&csw; - for (index = 0; index < UMASS_BBB_CSW_SIZE; index++) - printf("ptr[%d] %#x ", index, ptr[index]); - printf("\n"); -#endif - /* misuse pipe to get the residue */ - pipe = swap_32(csw.dCSWDataResidue); - if (pipe == 0 && srb->datalen != 0 && srb->datalen - data_actlen != 0) - pipe = srb->datalen - data_actlen; - if (CSWSIGNATURE != swap_32(csw.dCSWSignature)) { - USB_STOR_PRINTF("!CSWSIGNATURE\n"); - usb_stor_BBB_reset(us); - return USB_STOR_TRANSPORT_FAILED; - } else if ((CBWTag - 1) != swap_32(csw.dCSWTag)) { - USB_STOR_PRINTF("!Tag\n"); - usb_stor_BBB_reset(us); - return USB_STOR_TRANSPORT_FAILED; - } else if (csw.bCSWStatus > CSWSTATUS_PHASE) { - USB_STOR_PRINTF(">PHASE\n"); - usb_stor_BBB_reset(us); - return USB_STOR_TRANSPORT_FAILED; - } else if (csw.bCSWStatus == CSWSTATUS_PHASE) { - USB_STOR_PRINTF("=PHASE\n"); - usb_stor_BBB_reset(us); - return USB_STOR_TRANSPORT_FAILED; - } else if (data_actlen > srb->datalen) { - USB_STOR_PRINTF("transferred %dB instead of %dB\n", - data_actlen, srb->datalen); - return USB_STOR_TRANSPORT_FAILED; - } else if (csw.bCSWStatus == CSWSTATUS_FAILED) { - USB_STOR_PRINTF("FAILED\n"); - return USB_STOR_TRANSPORT_FAILED; - } - - return result; -} - -int usb_stor_CB_transport(ccb *srb, struct us_data *us) -{ - int result,status; - ccb *psrb; - ccb reqsrb; - int retry,notready; - - psrb=&reqsrb; - status=USB_STOR_TRANSPORT_GOOD; - retry=0; - notready=0; - /* issue the command */ -do_retry: - result=usb_stor_CB_comdat(srb,us); - USB_STOR_PRINTF("command / Data returned %d, status %X\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\n"); - return status; - } - srb->sense_buf[12]=(unsigned char)(us->ip_data>>8); - srb->sense_buf[13]=(unsigned char)(us->ip_data&0xff); - if(!us->ip_data) { - /* if the status is good, report it */ - if(status==USB_STOR_TRANSPORT_GOOD) { - USB_STOR_PRINTF(" USB CBI Command Good\n"); - return status; - } - } - } - /* do we have to issue an auto request? */ - /* HERE we have to check the result */ - if((result<0) && !(us->pusb_dev->status & USB_ST_STALLED)) { - USB_STOR_PRINTF("ERROR %X\n",us->pusb_dev->status); - us->transport_reset(us); - return USB_STOR_TRANSPORT_ERROR; - } - if((us->protocol==US_PR_CBI) && - ((srb->cmd[0]==SCSI_REQ_SENSE) || - (srb->cmd[0]==SCSI_INQUIRY))) { /* do not issue an autorequest after request sense */ - USB_STOR_PRINTF("No auto request and good\n"); - return USB_STOR_TRANSPORT_GOOD; - } - /* issue an request_sense */ - memset(&psrb->cmd[0],0,12); - psrb->cmd[0]=SCSI_REQ_SENSE; - psrb->cmd[1]=srb->lun<<5; - psrb->cmd[4]=18; - psrb->datalen=18; - psrb->pdata=&srb->sense_buf[0]; - psrb->cmdlen=12; - /* issue the command */ - result=usb_stor_CB_comdat(psrb,us); - USB_STOR_PRINTF("auto request returned %d\n",result); - /* if this is an CBI Protocol, get IRQ */ - if(us->protocol==US_PR_CBI) { - status=usb_stor_CBI_get_status(psrb,us); - } - if((result<0)&&!(us->pusb_dev->status & USB_ST_STALLED)) { - USB_STOR_PRINTF(" AUTO REQUEST ERROR %d\n",us->pusb_dev->status); - return USB_STOR_TRANSPORT_ERROR; - } - USB_STOR_PRINTF("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n",srb->sense_buf[0],srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]); - /* Check the auto request result */ - if((srb->sense_buf[2]==0) && - (srb->sense_buf[12]==0) && - (srb->sense_buf[13]==0)) /* ok, no sense */ - return USB_STOR_TRANSPORT_GOOD; - /* Check the auto request result */ - switch(srb->sense_buf[2]) { - case 0x01: /* Recovered Error */ - return USB_STOR_TRANSPORT_GOOD; - break; - case 0x02: /* Not Ready */ - if(notready++ > USB_TRANSPORT_NOT_READY_RETRY) { - printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X 0x%02X (NOT READY)\n", - srb->cmd[0],srb->sense_buf[0],srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]); - return USB_STOR_TRANSPORT_FAILED; - } else { - wait_ms(100); - goto do_retry; - } - break; - default: - if(retry++ > USB_TRANSPORT_UNKNOWN_RETRY) { - printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X 0x%02X\n", - srb->cmd[0],srb->sense_buf[0],srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]); - return USB_STOR_TRANSPORT_FAILED; - } else { - goto do_retry; - } - break; - } - return USB_STOR_TRANSPORT_FAILED; -} - - -static int usb_inquiry(ccb *srb,struct us_data *ss) -{ - int retry,i; - retry=5; - do { - memset(&srb->cmd[0],0,12); - srb->cmd[0]=SCSI_INQUIRY; - srb->cmd[1]=srb->lun<<5; - srb->cmd[4]=36; - srb->datalen=36; - srb->cmdlen=12; - i=ss->transport(srb,ss); - USB_STOR_PRINTF("inquiry returns %d\n",i); - if(i==0) - break; - } while(retry--); - - if(!retry) { - printf("error in inquiry\n"); - return -1; - } - return 0; -} - -static int usb_request_sense(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[1]=srb->lun<<5; - 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\n",srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]); - srb->pdata=(uchar *)ptr; - return 0; -} - -static int usb_test_unit_ready(ccb *srb,struct us_data *ss) -{ - int retries = 10; - - do { - memset(&srb->cmd[0],0,12); - srb->cmd[0]=SCSI_TST_U_RDY; - srb->cmd[1]=srb->lun<<5; - srb->datalen=0; - srb->cmdlen=12; - if(ss->transport(srb,ss)==USB_STOR_TRANSPORT_GOOD) { - return 0; - } - 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; - retry = 3; /* retries */ - do { - memset(&srb->cmd[0],0,12); - srb->cmd[0]=SCSI_RD_CAPAC; - srb->cmd[1]=srb->lun<<5; - srb->datalen=8; - srb->cmdlen=12; - if(ss->transport(srb,ss)==USB_STOR_TRANSPORT_GOOD) { - return 0; - } - } while(retry--); - - return -1; -} - -static int usb_read_10(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[1]=srb->lun<<5; - srb->cmd[2]=((unsigned char) (start>>24))&0xff; - srb->cmd[3]=((unsigned char) (start>>16))&0xff; - srb->cmd[4]=((unsigned char) (start>>8))&0xff; - srb->cmd[5]=((unsigned char) (start))&0xff; - srb->cmd[7]=((unsigned char) (blocks>>8))&0xff; - srb->cmd[8]=(unsigned char) blocks & 0xff; - srb->cmdlen=12; - USB_STOR_PRINTF("read10: start %lx blocks %x\n",start,blocks); - return ss->transport(srb,ss); -} - - -#ifdef CONFIG_USB_BIN_FIXUP -/* - * Some USB storage devices queried for SCSI identification data respond with - * binary strings, which if output to the console freeze the terminal. The - * workaround is to modify the vendor and product strings read from such - * device with proper values (as reported by 'usb info'). - * - * Vendor and product length limits are taken from the definition of - * 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 - -unsigned long usb_stor_read(int device, unsigned long blknr, unsigned long blkcnt, unsigned long *buffer) -{ - unsigned long start,blks, buf_addr; - unsigned short smallblks; - struct usb_device *dev; - int retry,i; - ccb *srb = &usb_ccb; - - if (blkcnt == 0) - return 0; - - device &= 0xff; - /* Setup device - */ - USB_STOR_PRINTF("\nusb_read: dev %d \n",device); - 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; - } - - 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)) { - printf("Device NOT ready\n Request Sense returned %02X %02X %02X\n", - srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]); - return 0; - } - USB_STOR_PRINTF("\nusb_read: dev %d startblk %lx, blccnt %lx buffer %lx\n",device,start,blks, buf_addr); - do { - retry=2; - srb->pdata=(unsigned char *)buf_addr; - if(blks>USB_MAX_READ_BLK) { - smallblks=USB_MAX_READ_BLK; - } else { - smallblks=(unsigned short) blks; - } -retry_it: - if(smallblks==USB_MAX_READ_BLK) - usb_show_progress(); - srb->datalen=usb_dev_desc[device].blksz * smallblks; - srb->pdata=(unsigned char *)buf_addr; - if(usb_read_10(srb,(struct us_data *)dev->privptr, start, smallblks)) { - USB_STOR_PRINTF("Read ERROR\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_STOR_PRINTF("usb_read: end startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr); - usb_disable_asynch(0); /* asynch transfer allowed */ - if(blkcnt>=USB_MAX_READ_BLK) - printf("\n"); - return(blkcnt); -} - - -/* Probe to see if a new device is actually a Storage device */ -int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,struct us_data *ss) -{ - struct usb_interface_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 (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("\n\nUSB Mass Storage device detected\n"); - - /* Initialize the us_data structure with some useful info */ - ss->flags = flags; - ss->ifnum = ifnum; - ss->pusb_dev = dev; - ss->attention_done = 0; - - /* 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\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\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\n"); - ss->transport = usb_stor_BBB_transport; - ss->transport_reset = usb_stor_BBB_reset; - break; - default: - printf("USB Storage Transport unknown / not yet implemented\n"); - return 0; - break; - } - - /* - * We are expecting a minimum of 2 endpoints - in and out (bulk). - * An optional interrupt is OK (necessary for CBI protocol). - * We will ignore any others. - */ - for (i = 0; i < iface->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\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\n"); - return 0; - } - /* set class specific stuff */ - /* We only handle certain protocols. Currently, these are - * the only ones. - * The SFF8070 accepts the requests used in u-boot - */ - if (ss->subclass != US_SC_UFI && ss->subclass != US_SC_SCSI && - ss->subclass != US_SC_8070) { - printf("Sorry, protocol %d not yet supported.\n",ss->subclass); - return 0; - } - if(ss->ep_int) { /* we had found an interrupt endpoint, prepare irq pipe */ - /* set up the IRQ pipe and handler */ - - ss->irqinterval = (ss->irqinterval > 0) ? ss->irqinterval : 255; - ss->irqpipe = usb_rcvintpipe(ss->pusb_dev, ss->ep_int); - ss->irqmaxp = usb_maxpacket(dev, ss->irqpipe); - dev->irq_handle=usb_stor_irq; - } - 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[2]; - 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) - ) - USB_STOR_PRINTF("usb_stor_get_info: skipping RESET..\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\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) {/* drive is removable */ - dev_desc->removable = 1; - } - 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, dev_desc->vendor, dev_desc->product); -#endif /* CONFIG_USB_BIN_FIXUP */ - USB_STOR_PRINTF("ISO Vers %X, Response Data %X\n",usb_stor_buf[2],usb_stor_buf[3]); - if(usb_test_unit_ready(pccb,ss)) { - printf("Device NOT ready\n Request Sense returned %02X %02X %02X\n",pccb->sense_buf[2],pccb->sense_buf[12],pccb->sense_buf[13]); - if(dev_desc->removable == 1) { - dev_desc->type = perq; - return 1; - } - else - return 0; - } - pccb->pdata = (unsigned char *)&cap[0]; - memset(pccb->pdata,0,8); - if(usb_read_capacity(pccb,ss) != 0) { - printf("READ_CAP ERROR\n"); - cap[0] = 2880; - cap[1] = 0x200; - } - USB_STOR_PRINTF("Read Capacity returns: 0x%lx, 0x%lx\n",cap[0],cap[1]); -#ifdef LITTLEENDIAN - cap[0] = ((unsigned long)( - (((unsigned long)(cap[0]) & (unsigned long)0x000000ffUL) << 24) | - (((unsigned long)(cap[0]) & (unsigned long)0x0000ff00UL) << 8) | - (((unsigned long)(cap[0]) & (unsigned long)0x00ff0000UL) >> 8) | - (((unsigned long)(cap[0]) & (unsigned long)0xff000000UL) >> 24) )); - cap[1] = ((unsigned long)( - (((unsigned long)(cap[1]) & (unsigned long)0x000000ffUL) << 24) | - (((unsigned long)(cap[1]) & (unsigned long)0x0000ff00UL) << 8) | - (((unsigned long)(cap[1]) & (unsigned long)0x00ff0000UL) >> 8) | - (((unsigned long)(cap[1]) & (unsigned long)0xff000000UL) >> 24) )); -#endif - /* this assumes bigendian! */ - cap[0] += 1; - capacity = &cap[0]; - blksz = &cap[1]; - USB_STOR_PRINTF("Capacity = 0x%lx, blocksz = 0x%lx\n",*capacity,*blksz); - dev_desc->lba = *capacity; - dev_desc->blksz = *blksz; - dev_desc->type = perq; - USB_STOR_PRINTF(" address %d\n",dev_desc->target); - USB_STOR_PRINTF("partype: %d\n",dev_desc->part_type); - - printf("init_part\n"); -#warning init_part missing -// init_part(dev_desc); - - USB_STOR_PRINTF("partype: %d\n",dev_desc->part_type); - return 1; -} - |