upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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895 lines
25 KiB
895 lines
25 KiB
/*
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* (C) Copyright 2001
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* Denis Peter, MPL AG Switzerland
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*
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* Most of this source has been derived from the Linux USB
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* project.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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/* Note:
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* Currently only the CBI transport protocoll has been implemented, and it
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* is only tested with a TEAC USB Floppy. Other Massstorages with CBI or CB
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* transport protocoll may work as well.
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*/
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#include <common.h>
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#include <command.h>
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#include <asm/processor.h>
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#if (CONFIG_COMMANDS & CFG_CMD_USB)
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#include <usb.h>
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#ifdef CONFIG_USB_STORAGE
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#undef USB_STOR_DEBUG
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#ifdef USB_STOR_DEBUG
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#define USB_STOR_PRINTF(fmt,args...) printf (fmt ,##args)
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#else
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#define USB_STOR_PRINTF(fmt,args...)
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#endif
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#include <scsi.h>
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/* direction table -- this indicates the direction of the data
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* transfer for each command code -- a 1 indicates input
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*/
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unsigned char us_direction[256/8] = {
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0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
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0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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#define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1)
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static unsigned char usb_stor_buf[512];
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static ccb usb_ccb;
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/*
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* CBI style
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*/
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#define US_CBI_ADSC 0
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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];
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struct us_data;
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typedef int (*trans_cmnd)(ccb*, struct us_data*);
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typedef int (*trans_reset)(struct us_data*);
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struct us_data {
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struct usb_device *pusb_dev; /* this usb_device */
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unsigned int flags; /* from filter initially */
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unsigned char ifnum; /* interface number */
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unsigned char ep_in; /* in endpoint */
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unsigned char ep_out; /* out ....... */
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unsigned char ep_int; /* interrupt . */
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unsigned char subclass; /* as in overview */
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unsigned char protocol; /* .............. */
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unsigned char attention_done; /* force attn on first cmd */
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unsigned short ip_data; /* interrupt data */
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int action; /* what to do */
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int ip_wanted; /* needed */
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int *irq_handle; /* for USB int requests */
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unsigned int irqpipe; /* pipe for release_irq */
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unsigned char irqmaxp; /* max packed for irq Pipe */
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unsigned char irqinterval; /* Intervall for IRQ Pipe */
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ccb *srb; /* current srb */
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trans_reset transport_reset; /* reset routine */
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trans_cmnd transport; /* transport routine */
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};
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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
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#define USB_STOR_TRANSPORT_ERROR -2
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int usb_stor_get_info(struct usb_device *dev, struct us_data *us, block_dev_desc_t *dev_desc);
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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, unsigned long blknr, unsigned long blkcnt, unsigned long *buffer);
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struct usb_device * usb_get_dev_index(int index);
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void uhci_show_temp_int_td(void);
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block_dev_desc_t *usb_stor_get_dev(int index)
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{
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return &usb_dev_desc[index];
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}
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void usb_show_progress(void)
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{
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printf(".");
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}
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/*********************************************************************************
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* (re)-scan the usb and reports device info
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* to the user if mode = 1
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* returns current device or -1 if no
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*/
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int usb_stor_scan(int mode)
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{
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unsigned char i;
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struct usb_device *dev;
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if(mode==1) {
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printf("scanning bus for storage devices...\n");
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}
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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++) {
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memset(&usb_dev_desc[i],0,sizeof(block_dev_desc_t));
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usb_dev_desc[i].target=0xff;
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usb_dev_desc[i].if_type=IF_TYPE_USB;
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usb_dev_desc[i].dev=i;
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usb_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
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usb_dev_desc[i].block_read=usb_stor_read;
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}
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usb_max_devs=0;
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for(i=0;i<USB_MAX_DEVICE;i++) {
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dev=usb_get_dev_index(i); /* get device */
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USB_STOR_PRINTF("i=%d\n",i);
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if(dev==NULL) {
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break; /* no more devices avaiable */
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}
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if(usb_storage_probe(dev,0,&usb_stor[usb_max_devs])) { /* ok, it is a storage devices */
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/* get info and fill it in */
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if(usb_stor_get_info(dev, &usb_stor[usb_max_devs], &usb_dev_desc[usb_max_devs])) {
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if(mode==1) {
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printf (" Device %d: ", usb_max_devs);
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dev_print(&usb_dev_desc[usb_max_devs]);
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} /* if mode */
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usb_max_devs++;
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} /* if get info ok */
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} /* if storage device */
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if(usb_max_devs==USB_MAX_STOR_DEV) {
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printf("max USB Storage Device reached: %d stopping\n",usb_max_devs);
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break;
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}
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} /* for */
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usb_disable_asynch(0); /* asynch transfer allowed */
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if(usb_max_devs>0)
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return 0;
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else
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return-1;
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}
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static int usb_stor_irq(struct usb_device *dev)
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{
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struct us_data *us;
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us=(struct us_data *)dev->privptr;
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if(us->ip_wanted) {
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us->ip_wanted=0;
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}
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return 0;
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}
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#ifdef USB_STOR_DEBUG
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static void usb_show_srb(ccb * pccb)
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{
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int i;
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printf("SRB: len %d datalen 0x%lX\n ",pccb->cmdlen,pccb->datalen);
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for(i=0;i<12;i++) {
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printf("%02X ",pccb->cmd[i]);
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}
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printf("\n");
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}
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static void display_int_status(unsigned long tmp)
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{
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printf("Status: %s %s %s %s %s %s %s\n",
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(tmp & USB_ST_ACTIVE) ? "Active" : "",
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(tmp & USB_ST_STALLED) ? "Stalled" : "",
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(tmp & USB_ST_BUF_ERR) ? "Buffer Error" : "",
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(tmp & USB_ST_BABBLE_DET) ? "Babble Det" : "",
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(tmp & USB_ST_NAK_REC) ? "NAKed" : "",
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(tmp & USB_ST_CRC_ERR) ? "CRC Error" : "",
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(tmp & USB_ST_BIT_ERR) ? "Bitstuff Error" : "");
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}
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#endif
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/***********************************************************************
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* Data transfer routines
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***********************************************************************/
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static int us_one_transfer(struct us_data *us, int pipe, char *buf, int length)
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{
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int max_size;
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int this_xfer;
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int result;
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int partial;
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int maxtry;
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int stat;
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/* determine the maximum packet size for these transfers */
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max_size = usb_maxpacket(us->pusb_dev, pipe) * 16;
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/* while we have data left to transfer */
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while (length) {
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/* calculate how long this will be -- maximum or a remainder */
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this_xfer = length > max_size ? max_size : length;
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length -= this_xfer;
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/* setup the retry counter */
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maxtry = 10;
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/* set up the transfer loop */
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do {
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/* transfer the data */
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USB_STOR_PRINTF("Bulk xfer 0x%x(%d) try #%d\n",
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(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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USB_STOR_PRINTF("bulk_msg returned %d xferred %d/%d\n",
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result, partial, this_xfer);
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if(us->pusb_dev->status!=0) {
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/* if we stall, we need to clear it before we go on */
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#ifdef USB_STOR_DEBUG
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display_int_status(us->pusb_dev->status);
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#endif
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if (us->pusb_dev->status & USB_ST_STALLED) {
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USB_STOR_PRINTF("stalled ->clearing endpoint halt for pipe 0x%x\n", pipe);
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stat = us->pusb_dev->status;
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usb_clear_halt(us->pusb_dev, pipe);
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us->pusb_dev->status=stat;
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if(this_xfer == partial) {
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USB_STOR_PRINTF("bulk transferred with error %X, but data ok\n",us->pusb_dev->status);
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return 0;
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}
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else
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return result;
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}
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if (us->pusb_dev->status & USB_ST_NAK_REC) {
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USB_STOR_PRINTF("Device NAKed bulk_msg\n");
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return result;
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}
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if(this_xfer == partial) {
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USB_STOR_PRINTF("bulk transferred with error %d, but data ok\n",us->pusb_dev->status);
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return 0;
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}
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/* if our try counter reaches 0, bail out */
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USB_STOR_PRINTF("bulk transferred with error %d, data %d\n",us->pusb_dev->status,partial);
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if (!maxtry--)
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return result;
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}
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/* update to show what data was transferred */
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this_xfer -= partial;
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buf += partial;
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/* continue until this transfer is done */
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} while ( this_xfer );
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}
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/* if we get here, we're done and successful */
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return 0;
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}
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/* FIXME: this reset function doesn't really reset the port, and it
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* should. Actually it should probably do what it's doing here, and
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* reset the port physically
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*/
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static int usb_stor_CB_reset(struct us_data *us)
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{
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unsigned char cmd[12];
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int result;
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USB_STOR_PRINTF("CB_reset\n");
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memset(cmd, 0xFF, sizeof(cmd));
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cmd[0] = SCSI_SEND_DIAG;
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cmd[1] = 4;
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result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev,0),
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US_CBI_ADSC, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
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0, us->ifnum, cmd, sizeof(cmd), USB_CNTL_TIMEOUT*5);
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|
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/* long wait for reset */
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wait_ms(1500);
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USB_STOR_PRINTF("CB_reset result %d: status %X clearing endpoint halt\n",result,us->pusb_dev->status);
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usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_in));
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usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_out));
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USB_STOR_PRINTF("CB_reset done\n");
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return 0;
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}
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|
|
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/* FIXME: we also need a CBI_command which sets up the completion
|
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* interrupt, and waits for it
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*/
|
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int usb_stor_CB_comdat(ccb *srb, struct us_data *us)
|
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{
|
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int result;
|
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int dir_in,retry;
|
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unsigned int pipe;
|
|
unsigned long status;
|
|
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|
retry=5;
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dir_in=US_DIRECTION(srb->cmd[0]);
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|
|
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if(dir_in)
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pipe=usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
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else
|
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pipe=usb_sndbulkpipe(us->pusb_dev, us->ep_out);
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while(retry--) {
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USB_STOR_PRINTF("CBI gets a command: Try %d\n",5-retry);
|
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#ifdef USB_STOR_DEBUG
|
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usb_show_srb(srb);
|
|
#endif
|
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/* let's send the command via the control pipe */
|
|
result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev,0),
|
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US_CBI_ADSC, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
|
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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, 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
|
|
|
|
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=3;
|
|
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;
|
|
return 0;
|
|
ptr=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=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;
|
|
}
|
|
} while(retries--);
|
|
return -1;
|
|
}
|
|
|
|
static int usb_read_capacity(ccb *srb,struct us_data *ss)
|
|
{
|
|
int retry;
|
|
retry=2; /* 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);
|
|
}
|
|
|
|
|
|
#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;
|
|
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;
|
|
|
|
|
|
memset(ss, 0, sizeof(struct us_data));
|
|
|
|
/* let's examine the device now */
|
|
iface = &dev->config.if_desc[ifnum];
|
|
|
|
#if 0
|
|
/* this is the place to patch some storage devices */
|
|
USB_STOR_PRINTF("iVendor %X iProduct %X\n",dev->descriptor.idVendor,dev->descriptor.idProduct);
|
|
if ((dev->descriptor.idVendor) == 0x066b && (dev->descriptor.idProduct) == 0x0103) {
|
|
USB_STOR_PRINTF("patched for E-USB\n");
|
|
protocol = US_PR_CB;
|
|
subclass = US_SC_UFI; /* an assumption */
|
|
}
|
|
#endif
|
|
|
|
if (dev->descriptor.bDeviceClass != 0 ||
|
|
iface->bInterfaceClass != USB_CLASS_MASS_STORAGE ||
|
|
iface->bInterfaceSubClass < US_SC_MIN ||
|
|
iface->bInterfaceSubClass > US_SC_MAX) {
|
|
/* if it's not a mass storage, we go no further */
|
|
return 0;
|
|
}
|
|
|
|
/* 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;
|
|
default:
|
|
printf("USB Starage 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, this is
|
|
* the only one.
|
|
*/
|
|
if (ss->subclass != US_SC_UFI) {
|
|
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;
|
|
|
|
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;
|
|
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]);
|
|
#if 0
|
|
if(cap[0]>(0x200000 * 10)) /* greater than 10 GByte */
|
|
cap[0]>>=16;
|
|
#endif
|
|
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);
|
|
|
|
init_part(dev_desc);
|
|
|
|
USB_STOR_PRINTF("partype: %d\n",dev_desc->part_type);
|
|
return 1;
|
|
}
|
|
|
|
#endif
|
|
#endif /* CONFIG_USB_STORAGE */
|
|
|
|
|
|
|
|
|