]> git.sur5r.net Git - u-boot/blob - common/cmd_usb.c
Prevent USB commands from working when USB is stopped.
[u-boot] / common / cmd_usb.c
1 /*
2  * (C) Copyright 2001
3  * Denis Peter, MPL AG Switzerland
4  *
5  * Most of this source has been derived from the Linux USB
6  * project.
7  *
8  * See file CREDITS for list of people who contributed to this
9  * project.
10  *
11  * This program is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU General Public License as
13  * published by the Free Software Foundation; either version 2 of
14  * the License, or (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24  * MA 02111-1307 USA
25  *
26  */
27
28 #include <common.h>
29 #include <command.h>
30 #include <asm/byteorder.h>
31
32 #if (CONFIG_COMMANDS & CFG_CMD_USB)
33
34 #include <usb.h>
35
36 #ifdef CONFIG_USB_STORAGE
37 static int usb_stor_curr_dev=-1; /* current device */
38 #endif
39
40 /* some display routines (info command) */
41 char * usb_get_class_desc(unsigned char dclass)
42 {
43         switch(dclass) {
44                 case USB_CLASS_PER_INTERFACE:
45                         return("See Interface");
46                 case USB_CLASS_AUDIO:
47                         return("Audio");
48                 case USB_CLASS_COMM:
49                         return("Communication");
50                 case USB_CLASS_HID:
51                         return("Human Interface");
52                 case USB_CLASS_PRINTER:
53                         return("Printer");
54                 case USB_CLASS_MASS_STORAGE:
55                         return("Mass Storage");
56                 case USB_CLASS_HUB:
57                         return("Hub");
58                 case USB_CLASS_DATA:
59                         return("CDC Data");
60                 case USB_CLASS_VENDOR_SPEC:
61                         return("Vendor specific");
62                 default :
63                         return("");
64         }
65 }
66
67 void usb_display_class_sub(unsigned char dclass,unsigned char subclass,unsigned char proto)
68 {
69         switch(dclass) {
70                 case USB_CLASS_PER_INTERFACE:
71                         printf("See Interface");
72                         break;
73                 case USB_CLASS_HID:
74                         printf("Human Interface, Subclass: ");
75                         switch(subclass) {
76                                 case USB_SUB_HID_NONE:
77                                         printf("None");
78                                         break;
79                                 case USB_SUB_HID_BOOT:
80                                         printf("Boot ");
81                                         switch(proto) {
82                                                 case USB_PROT_HID_NONE:
83                                                         printf("None");
84                                                         break;
85                                                 case USB_PROT_HID_KEYBOARD:
86                                                         printf("Keyboard");
87                                                         break;
88                                                 case USB_PROT_HID_MOUSE:
89                                                         printf("Mouse");
90                                                         break;
91                                                 default:
92                                                         printf("reserved");
93                                         }
94                                         break;
95                                 default:
96                                         printf("reserved");
97                         }
98                         break;
99                 case USB_CLASS_MASS_STORAGE:
100                         printf("Mass Storage, ");
101                         switch(subclass) {
102                                 case US_SC_RBC:
103                                         printf("RBC ");
104                                         break;
105                                 case US_SC_8020:
106                                         printf("SFF-8020i (ATAPI)");
107                                         break;
108                                 case US_SC_QIC:
109                                         printf("QIC-157 (Tape)");
110                                         break;
111                                 case US_SC_UFI:
112                                         printf("UFI");
113                                         break;
114                                 case US_SC_8070:
115                                         printf("SFF-8070");
116                                         break;
117                                 case US_SC_SCSI:
118                                         printf("Transp. SCSI");
119                                         break;
120                                 default:
121                                         printf("reserved");
122                                         break;
123                         }
124                         printf(", ");
125                         switch(proto) {
126                                 case US_PR_CB:
127                                         printf("Command/Bulk");
128                                         break;
129                                 case US_PR_CBI:
130                                         printf("Command/Bulk/Int");
131                                         break;
132                                 case US_PR_BULK:
133                                         printf("Bulk only");
134                                         break;
135                                 default:
136                                         printf("reserved");
137                         }
138                         break;
139                 default:
140                         printf("%s",usb_get_class_desc(dclass));
141         }
142 }
143
144 void usb_display_string(struct usb_device *dev,int index)
145 {
146         char buffer[256];
147         if (index!=0) {
148                 if (usb_string(dev,index,&buffer[0],256)>0);
149                         printf("String: \"%s\"",buffer);
150         }
151 }
152
153 void usb_display_desc(struct usb_device *dev)
154 {
155         if (dev->descriptor.bDescriptorType==USB_DT_DEVICE) {
156                 printf("%d: %s,  USB Revision %x.%x\n",dev->devnum,usb_get_class_desc(dev->config.if_desc[0].bInterfaceClass),
157                         (dev->descriptor.bcdUSB>>8) & 0xff,dev->descriptor.bcdUSB & 0xff);
158                 if (strlen(dev->mf) || strlen(dev->prod) || strlen(dev->serial))
159                         printf(" - %s %s %s\n",dev->mf,dev->prod,dev->serial);
160                 if (dev->descriptor.bDeviceClass) {
161                         printf(" - Class: ");
162                         usb_display_class_sub(dev->descriptor.bDeviceClass,dev->descriptor.bDeviceSubClass,dev->descriptor.bDeviceProtocol);
163                         printf("\n");
164                 }
165                 else {
166                         printf(" - Class: (from Interface) %s\n",usb_get_class_desc(dev->config.if_desc[0].bInterfaceClass));
167                 }
168                 printf(" - PacketSize: %d  Configurations: %d\n",dev->descriptor.bMaxPacketSize0,dev->descriptor.bNumConfigurations);
169                 printf(" - Vendor: 0x%04x  Product 0x%04x Version %d.%d\n",dev->descriptor.idVendor,dev->descriptor.idProduct,(dev->descriptor.bcdDevice>>8) & 0xff,dev->descriptor.bcdDevice & 0xff);
170         }
171
172 }
173
174 void usb_display_conf_desc(struct usb_config_descriptor *config,struct usb_device *dev)
175 {
176         printf("   Configuration: %d\n",config->bConfigurationValue);
177         printf("   - Interfaces: %d %s%s%dmA\n",config->bNumInterfaces,(config->bmAttributes & 0x40) ? "Self Powered " : "Bus Powered ",
178         (config->bmAttributes & 0x20) ? "Remote Wakeup " : "",config->MaxPower*2);
179         if (config->iConfiguration) {
180                 printf("   - ");
181                 usb_display_string(dev,config->iConfiguration);
182                 printf("\n");
183         }
184 }
185
186 void usb_display_if_desc(struct usb_interface_descriptor *ifdesc,struct usb_device *dev)
187 {
188         printf("     Interface: %d\n",ifdesc->bInterfaceNumber);
189         printf("     - Alternate Setting %d, Endpoints: %d\n",ifdesc->bAlternateSetting,ifdesc->bNumEndpoints);
190         printf("     - Class ");
191         usb_display_class_sub(ifdesc->bInterfaceClass,ifdesc->bInterfaceSubClass,ifdesc->bInterfaceProtocol);
192         printf("\n");
193         if (ifdesc->iInterface) {
194                 printf("     - ");
195                 usb_display_string(dev,ifdesc->iInterface);
196                 printf("\n");
197         }
198 }
199
200 void usb_display_ep_desc(struct usb_endpoint_descriptor *epdesc)
201 {
202         printf("     - Endpoint %d %s ",epdesc->bEndpointAddress & 0xf,(epdesc->bEndpointAddress & 0x80) ? "In" : "Out");
203         switch((epdesc->bmAttributes & 0x03))
204         {
205                 case 0: printf("Control"); break;
206                 case 1: printf("Isochronous"); break;
207                 case 2: printf("Bulk"); break;
208                 case 3: printf("Interrupt"); break;
209         }
210         printf(" MaxPacket %d",epdesc->wMaxPacketSize);
211         if ((epdesc->bmAttributes & 0x03)==0x3)
212                 printf(" Interval %dms",epdesc->bInterval);
213         printf("\n");
214 }
215
216 /* main routine to diasplay the configs, interfaces and endpoints */
217 void usb_display_config(struct usb_device *dev)
218 {
219         struct usb_config_descriptor *config;
220         struct usb_interface_descriptor *ifdesc;
221         struct usb_endpoint_descriptor *epdesc;
222         int i,ii;
223
224         config= &dev->config;
225         usb_display_conf_desc(config,dev);
226         for(i=0;i<config->no_of_if;i++) {
227                 ifdesc= &config->if_desc[i];
228                 usb_display_if_desc(ifdesc,dev);
229                 for(ii=0;ii<ifdesc->no_of_ep;ii++) {
230                         epdesc= &ifdesc->ep_desc[ii];
231                         usb_display_ep_desc(epdesc);
232                 }
233         }
234         printf("\n");
235 }
236
237 /* shows the device tree recursively */
238 void usb_show_tree_graph(struct usb_device *dev,char *pre)
239 {
240         int i,index;
241         int has_child,last_child,port;
242
243         index=strlen(pre);
244         printf(" %s",pre);
245         /* check if the device has connected children */
246         has_child=0;
247         for(i=0;i<dev->maxchild;i++) {
248                 if (dev->children[i]!=NULL)
249                         has_child=1;
250         }
251         /* check if we are the last one */
252         last_child=1;
253         if (dev->parent!=NULL) {
254                 for(i=0;i<dev->parent->maxchild;i++) {
255                         /* search for children */
256                         if (dev->parent->children[i]==dev) {
257                                 /* found our pointer, see if we have a little sister */
258                                 port=i;
259                                 while(i++<dev->parent->maxchild) {
260                                         if (dev->parent->children[i]!=NULL) {
261                                                 /* found a sister */
262                                                 last_child=0;
263                                                 break;
264                                         } /* if */
265                                 } /* while */
266                         } /* device found */
267                 } /* for all children of the parent */
268                 printf("\b+-");
269                 /* correct last child */
270                 if (last_child) {
271                         pre[index-1]=' ';
272                 }
273         } /* if not root hub */
274         else
275                 printf(" ");
276         printf("%d ",dev->devnum);
277         pre[index++]=' ';
278         pre[index++]= has_child ? '|' : ' ';
279         pre[index]=0;
280         printf(" %s (%s, %dmA)\n",usb_get_class_desc(dev->config.if_desc[0].bInterfaceClass),
281                 dev->slow ? "1.5MBit/s" : "12MBit/s",dev->config.MaxPower * 2);
282         if (strlen(dev->mf) ||
283            strlen(dev->prod) ||
284            strlen(dev->serial))
285                 printf(" %s  %s %s %s\n",pre,dev->mf,dev->prod,dev->serial);
286         printf(" %s\n",pre);
287         if (dev->maxchild>0) {
288                 for(i=0;i<dev->maxchild;i++) {
289                         if (dev->children[i]!=NULL) {
290                                 usb_show_tree_graph(dev->children[i],pre);
291                                 pre[index]=0;
292                         }
293                 }
294         }
295 }
296
297 /* main routine for the tree command */
298 void usb_show_tree(struct usb_device *dev)
299 {
300         char preamble[32];
301
302         memset(preamble,0,32);
303         usb_show_tree_graph(dev,&preamble[0]);
304 }
305
306
307 /******************************************************************************
308  * usb boot command intepreter. Derived from diskboot
309  */
310 #ifdef CONFIG_USB_STORAGE
311 int do_usbboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
312 {
313         char *boot_device = NULL;
314         char *ep;
315         int dev, part=1, rcode;
316         ulong addr, cnt, checksum;
317         disk_partition_t info;
318         image_header_t *hdr;
319         block_dev_desc_t *stor_dev;
320
321
322         switch (argc) {
323         case 1:
324                 addr = CFG_LOAD_ADDR;
325                 boot_device = getenv ("bootdevice");
326                 break;
327         case 2:
328                 addr = simple_strtoul(argv[1], NULL, 16);
329                 boot_device = getenv ("bootdevice");
330                 break;
331         case 3:
332                 addr = simple_strtoul(argv[1], NULL, 16);
333                 boot_device = argv[2];
334                 break;
335         default:
336                 printf ("Usage:\n%s\n", cmdtp->usage);
337                 return 1;
338         }
339
340         if (!boot_device) {
341                 puts ("\n** No boot device **\n");
342                 return 1;
343         }
344
345         dev = simple_strtoul(boot_device, &ep, 16);
346         stor_dev=usb_stor_get_dev(dev);
347         if (stor_dev->type == DEV_TYPE_UNKNOWN) {
348                 printf ("\n** Device %d not available\n", dev);
349                 return 1;
350         }
351         if (stor_dev->block_read==NULL) {
352                 printf("storage device not initialized. Use usb scan\n");
353                 return 1;
354         }
355         if (*ep) {
356                 if (*ep != ':') {
357                         puts ("\n** Invalid boot device, use `dev[:part]' **\n");
358                         return 1;
359                 }
360                 part = simple_strtoul(++ep, NULL, 16);
361         }
362
363         if (get_partition_info (stor_dev, part, &info)) {
364                 /* try to boot raw .... */
365                 strncpy((char *)&info.type[0], BOOT_PART_TYPE, sizeof(BOOT_PART_TYPE));
366                 strncpy((char *)&info.name[0], "Raw", 4);
367                 info.start=0;
368                 info.blksz=0x200;
369                 info.size=2880;
370                 printf("error reading partinfo...try to boot raw\n");
371         }
372         if ((strncmp((char *)info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) &&
373             (strncmp((char *)info.type, BOOT_PART_COMP, sizeof(info.type)) != 0)) {
374                 printf ("\n** Invalid partition type \"%.32s\""
375                         " (expect \"" BOOT_PART_TYPE "\")\n",
376                         info.type);
377                 return 1;
378         }
379         printf ("\nLoading from USB device %d, partition %d: "
380                 "Name: %.32s  Type: %.32s\n",
381                 dev, part, info.name, info.type);
382
383         debug ("First Block: %ld,  # of blocks: %ld, Block Size: %ld\n",
384                 info.start, info.size, info.blksz);
385
386         if (stor_dev->block_read(dev, info.start, 1, (ulong *)addr) != 1) {
387                 printf ("** Read error on %d:%d\n", dev, part);
388                 return 1;
389         }
390
391         hdr = (image_header_t *)addr;
392
393         if (ntohl(hdr->ih_magic) != IH_MAGIC) {
394                 printf("\n** Bad Magic Number **\n");
395                 return 1;
396         }
397
398         checksum = ntohl(hdr->ih_hcrc);
399         hdr->ih_hcrc = 0;
400
401         if (crc32 (0, (uchar *)hdr, sizeof(image_header_t)) != checksum) {
402                 puts ("\n** Bad Header Checksum **\n");
403                 return 1;
404         }
405         hdr->ih_hcrc = htonl(checksum); /* restore checksum for later use */
406
407         print_image_hdr (hdr);
408
409         cnt = (ntohl(hdr->ih_size) + sizeof(image_header_t));
410         cnt += info.blksz - 1;
411         cnt /= info.blksz;
412         cnt -= 1;
413
414         if (stor_dev->block_read (dev, info.start+1, cnt,
415                       (ulong *)(addr+info.blksz)) != cnt) {
416                 printf ("\n** Read error on %d:%d\n", dev, part);
417                 return 1;
418         }
419         /* Loading ok, update default load address */
420         load_addr = addr;
421
422         flush_cache (addr, (cnt+1)*info.blksz);
423
424         /* Check if we should attempt an auto-start */
425         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
426                 char *local_args[2];
427                 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
428                 local_args[0] = argv[0];
429                 local_args[1] = NULL;
430                 printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
431                 rcode=do_bootm (cmdtp, 0, 1, local_args);
432                 return rcode;
433         }
434         return 0;
435 }
436 #endif /* CONFIG_USB_STORAGE */
437
438
439 /*********************************************************************************
440  * usb command intepreter
441  */
442 int do_usb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
443 {
444
445         int i;
446         struct usb_device *dev = NULL;
447         extern char usb_started;
448 #ifdef CONFIG_USB_STORAGE
449         block_dev_desc_t *stor_dev;
450 #endif
451
452         if ((strncmp(argv[1], "reset", 5) == 0) ||
453                  (strncmp(argv[1], "start", 5) == 0)){
454                 usb_stop();
455                 printf("(Re)start USB...\n");
456                 i = usb_init();
457 #ifdef CONFIG_USB_STORAGE
458                 /* try to recognize storage devices immediately */
459                 if (i >= 0)
460                         usb_stor_curr_dev = usb_stor_scan(1);
461 #endif
462                 return 0;
463         }
464         if (strncmp(argv[1],"stop",4) == 0) {
465 #ifdef CONFIG_USB_KEYBOARD
466                 if (argc==2) {
467                         if (usb_kbd_deregister()!=0) {
468                                 printf("USB not stopped: usbkbd still using USB\n");
469                                 return 1;
470                         }
471                 }
472                 else { /* forced stop, switch console in to serial */
473                         console_assign(stdin,"serial");
474                         usb_kbd_deregister();
475                 }
476 #endif
477                 printf("stopping USB..\n");
478                 usb_stop();
479                 return 0;
480         }
481         if (!usb_started) {
482                 printf("USB is stopped. Please issue 'usb start' first.\n");
483                 return 1;
484         }
485         if (strncmp(argv[1],"tree",4) == 0) {
486                 printf("\nDevice Tree:\n");
487                 usb_show_tree(usb_get_dev_index(0));
488                 return 0;
489         }
490         if (strncmp(argv[1],"inf",3) == 0) {
491                 int d;
492                 if (argc==2) {
493                         for(d=0;d<USB_MAX_DEVICE;d++) {
494                                 dev=usb_get_dev_index(d);
495                                 if (dev==NULL)
496                                         break;
497                                 usb_display_desc(dev);
498                                 usb_display_config(dev);
499                         }
500                         return 0;
501                 }
502                 else {
503                         int d;
504
505                         i=simple_strtoul(argv[2], NULL, 16);
506                         printf("config for device %d\n",i);
507                         for(d=0;d<USB_MAX_DEVICE;d++) {
508                                 dev=usb_get_dev_index(d);
509                                 if (dev==NULL)
510                                         break;
511                                 if (dev->devnum==i)
512                                         break;
513                         }
514                         if (dev==NULL) {
515                                 printf("*** NO Device avaiable ***\n");
516                                 return 0;
517                         }
518                         else {
519                                 usb_display_desc(dev);
520                                 usb_display_config(dev);
521                         }
522                 }
523                 return 0;
524         }
525 #ifdef CONFIG_USB_STORAGE
526         if (strncmp(argv[1], "scan", 4) == 0) {
527                 printf("  NOTE: this command is obsolete and will be phased out\n");
528                 printf("  please use 'usb storage' for USB storage devices information\n\n");
529                 usb_stor_info();
530                 return 0;
531         }
532
533         if (strncmp(argv[1], "stor", 4) == 0) {
534                 usb_stor_info();
535                 return 0;
536         }
537
538         if (strncmp(argv[1],"part",4) == 0) {
539                 int devno, ok;
540                 for (ok=0, devno=0; devno<USB_MAX_STOR_DEV; ++devno) {
541                         stor_dev=usb_stor_get_dev(devno);
542                         if (stor_dev->type!=DEV_TYPE_UNKNOWN) {
543                                 ok++;
544                                 if (devno)
545                                         printf("\n");
546                                 printf("print_part of %x\n",devno);
547                                 print_part(stor_dev);
548                         }
549                 }
550                 if (!ok) {
551                         printf("\nno USB devices available\n");
552                         return 1;
553                 }
554                 return 0;
555         }
556         if (strcmp(argv[1],"read") == 0) {
557                 if (usb_stor_curr_dev<0) {
558                         printf("no current device selected\n");
559                         return 1;
560                 }
561                 if (argc==5) {
562                         unsigned long addr = simple_strtoul(argv[2], NULL, 16);
563                         unsigned long blk  = simple_strtoul(argv[3], NULL, 16);
564                         unsigned long cnt  = simple_strtoul(argv[4], NULL, 16);
565                         unsigned long n;
566                         printf ("\nUSB read: device %d block # %ld, count %ld ... ",
567                                         usb_stor_curr_dev, blk, cnt);
568                         stor_dev=usb_stor_get_dev(usb_stor_curr_dev);
569                         n = stor_dev->block_read(usb_stor_curr_dev, blk, cnt, (ulong *)addr);
570                         printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
571                         if (n==cnt)
572                                 return 0;
573                         return 1;
574                 }
575         }
576         if (strncmp(argv[1], "dev", 3) == 0) {
577                 if (argc == 3) {
578                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
579                         printf ("\nUSB device %d: ", dev);
580                         if (dev >= USB_MAX_STOR_DEV) {
581                                 printf("unknown device\n");
582                                 return 1;
583                         }
584                         printf ("\n    Device %d: ", dev);
585                         stor_dev=usb_stor_get_dev(dev);
586                         dev_print(stor_dev);
587                         if (stor_dev->type == DEV_TYPE_UNKNOWN) {
588                                 return 1;
589                         }
590                         usb_stor_curr_dev = dev;
591                         printf("... is now current device\n");
592                         return 0;
593                 }
594                 else {
595                         printf ("\nUSB device %d: ", usb_stor_curr_dev);
596                         stor_dev=usb_stor_get_dev(usb_stor_curr_dev);
597                         dev_print(stor_dev);
598                         if (stor_dev->type == DEV_TYPE_UNKNOWN) {
599                                 return 1;
600                         }
601                         return 0;
602                 }
603                 return 0;
604         }
605 #endif /* CONFIG_USB_STORAGE */
606         printf ("Usage:\n%s\n", cmdtp->usage);
607         return 1;
608 }
609
610
611 #endif /* (CONFIG_COMMANDS & CFG_CMD_USB) */
612
613
614 #if (CONFIG_COMMANDS & CFG_CMD_USB)
615
616 #ifdef CONFIG_USB_STORAGE
617 U_BOOT_CMD(
618         usb,    5,      1,      do_usb,
619         "usb     - USB sub-system\n",
620         "reset - reset (rescan) USB controller\n"
621         "usb stop [f]  - stop USB [f]=force stop\n"
622         "usb tree  - show USB device tree\n"
623         "usb info [dev] - show available USB devices\n"
624         "usb storage  - show details of USB storage devices\n"
625         "usb dev [dev] - show or set current USB storage device\n"
626         "usb part [dev] - print partition table of one or all USB storage devices\n"
627         "usb read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
628         "    to memory address `addr'\n"
629 );
630
631
632 U_BOOT_CMD(
633         usbboot,        3,      1,      do_usbboot,
634         "usbboot - boot from USB device\n",
635         "loadAddr dev:part\n"
636 );
637
638 #else
639 U_BOOT_CMD(
640         usb,    5,      1,      do_usb,
641         "usb     - USB sub-system\n",
642         "reset - reset (rescan) USB controller\n"
643         "usb  tree  - show USB device tree\n"
644         "usb  info [dev] - show available USB devices\n"
645 );
646 #endif
647 #endif