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[u-boot] / include / usbdevice.h
1 /*
2  * (C) Copyright 2003
3  * Gerry Hamel, geh@ti.com, Texas Instruments
4  *
5  * Based on linux/drivers/usbd/usbd.h
6  *
7  * Copyright (c) 2000, 2001, 2002 Lineo
8  * Copyright (c) 2001 Hewlett Packard
9  *
10  * By:
11  *      Stuart Lynne <sl@lineo.com>,
12  *      Tom Rushworth <tbr@lineo.com>,
13  *      Bruce Balden <balden@lineo.com>
14  *
15  * This program is free software; you can redistribute it and/or modify
16  * it under the terms of the GNU General Public License as published by
17  * the Free Software Foundation; either version 2 of the License, or
18  * (at your option) any later version.
19  *
20  * This program is distributed in the hope that it will be useful,
21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
23  * GNU General Public License for more details.
24  *
25  * You should have received a copy of the GNU General Public License
26  * along with this program; if not, write to the Free Software
27  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28  *
29  */
30
31 #ifndef __USBDCORE_H__
32 #define __USBDCORE_H__
33
34 #include <common.h>
35 #include "usbdescriptors.h"
36
37
38 #define MAX_URBS_QUEUED 5
39
40
41 #if 1
42 #define usberr(fmt,args...) serial_printf("ERROR: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
43 #else
44 #define usberr(fmt,args...) do{}while(0)
45 #endif
46
47 #if 0
48 #define usbdbg(fmt,args...) serial_printf("debug: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
49 #else
50 #define usbdbg(fmt,args...) do{}while(0)
51 #endif
52
53 #if 0
54 #define usbinfo(fmt,args...) serial_printf("info: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
55 #else
56 #define usbinfo(fmt,args...) do{}while(0)
57 #endif
58
59 #ifndef le16_to_cpu
60 #define le16_to_cpu(x)  (x)
61 #endif
62
63 #ifndef inb
64 #define inb(p)       (*(volatile u8*)(p))
65 #endif
66
67 #ifndef outb
68 #define outb(val,p)  (*(volatile u8*)(p) = (val))
69 #endif
70
71 #ifndef inw
72 #define inw(p)       (*(volatile u16*)(p))
73 #endif
74
75 #ifndef outw
76 #define outw(val,p)  (*(volatile u16*)(p) = (val))
77 #endif
78
79 #ifndef inl
80 #define inl(p)       (*(volatile u32*)(p))
81 #endif
82
83 #ifndef outl
84 #define outl(val,p)  (*(volatile u32*)(p) = (val))
85 #endif
86
87 #ifndef insw
88 #define insw(p,to,len)     mmio_insw(p,to,len)
89 #endif
90
91 #ifndef outsw
92 #define outsw(p,from,len)  mmio_outsw(p,from,len)
93 #endif
94
95 #ifndef insb
96 #define insb(p,to,len)     mmio_insb(p,to,len)
97 #endif
98
99 #ifndef mmio_insw
100 #define mmio_insw(r,b,l)        ({      int __i ;  \
101                                         u16 *__b2;  \
102                                         __b2 = (u16 *) b;  \
103                                         for (__i = 0; __i < l; __i++) {  \
104                                           *(__b2 + __i) = inw(r);  \
105                                         };  \
106                                 })
107 #endif
108
109 #ifndef mmio_outsw
110 #define mmio_outsw(r,b,l)       ({      int __i; \
111                                         u16 *__b2; \
112                                         __b2 = (u16 *) b; \
113                                         for (__i = 0; __i < l; __i++) { \
114                                             outw( *(__b2 + __i), r); \
115                                         } \
116                                 })
117 #endif
118
119 #ifndef mmio_insb
120 #define mmio_insb(r,b,l)        ({      int __i ;  \
121                                         u8 *__b2;  \
122                                         __b2 = (u8 *) b;  \
123                                         for (__i = 0; __i < l; __i++) {  \
124                                           *(__b2 + __i) = inb(r);  \
125                                         };  \
126                                 })
127 #endif
128
129 /*
130  * Structure member address manipulation macros.
131  * These are used by client code (code using the urb_link routines), since
132  * the urb_link structure is embedded in the client data structures.
133  *
134  * Note: a macro offsetof equivalent to member_offset is defined in stddef.h
135  *       but this is kept here for the sake of portability.
136  *
137  * p2surround returns a pointer to the surrounding structure given
138  * type of the surrounding structure, the name memb of the structure
139  * member pointed at by ptr.  For example, if you have:
140  *
141  *      struct foo {
142  *          int x;
143  *          float y;
144  *          char z;
145  *      } thingy;
146  *
147  *      char *cp = &thingy.z;
148  *
149  * then
150  *
151  *      &thingy == p2surround(struct foo, z, cp)
152  *
153  * Clear?
154  */
155 #define _cv_(ptr)                 ((char*)(void*)(ptr))
156 #define member_offset(type,memb)  (_cv_(&(((type*)0)->memb))-(char*)0)
157 #define p2surround(type,memb,ptr) ((type*)(void*)(_cv_(ptr)-member_offset(type,memb)))
158
159 struct urb;
160
161 struct usb_endpoint_instance;
162 struct usb_interface_instance;
163 struct usb_configuration_instance;
164 struct usb_device_instance;
165 struct usb_bus_instance;
166
167 /*
168  * Device and/or Interface Class codes
169  */
170 #define USB_CLASS_PER_INTERFACE         0       /* for DeviceClass */
171 #define USB_CLASS_AUDIO                 1
172 #define USB_CLASS_COMM                  2
173 #define USB_CLASS_HID                   3
174 #define USB_CLASS_PHYSICAL              5
175 #define USB_CLASS_PRINTER               7
176 #define USB_CLASS_MASS_STORAGE          8
177 #define USB_CLASS_HUB                   9
178 #define USB_CLASS_DATA                  10
179 #define USB_CLASS_APP_SPEC              0xfe
180 #define USB_CLASS_VENDOR_SPEC           0xff
181
182 /*
183  * USB types
184  */
185 #define USB_TYPE_STANDARD               (0x00 << 5)
186 #define USB_TYPE_CLASS                  (0x01 << 5)
187 #define USB_TYPE_VENDOR                 (0x02 << 5)
188 #define USB_TYPE_RESERVED               (0x03 << 5)
189
190 /*
191  * USB recipients
192  */
193 #define USB_RECIP_DEVICE                0x00
194 #define USB_RECIP_INTERFACE             0x01
195 #define USB_RECIP_ENDPOINT              0x02
196 #define USB_RECIP_OTHER                 0x03
197
198 /*
199  * USB directions
200  */
201 #define USB_DIR_OUT                     0
202 #define USB_DIR_IN                      0x80
203
204 /*
205  * Descriptor types
206  */
207 #define USB_DT_DEVICE                   0x01
208 #define USB_DT_CONFIG                   0x02
209 #define USB_DT_STRING                   0x03
210 #define USB_DT_INTERFACE                0x04
211 #define USB_DT_ENDPOINT                 0x05
212
213 #if defined(CONFIG_USBD_HS)
214 #define USB_DT_QUAL                     0x06
215 #endif
216
217 #define USB_DT_HID                      (USB_TYPE_CLASS | 0x01)
218 #define USB_DT_REPORT                   (USB_TYPE_CLASS | 0x02)
219 #define USB_DT_PHYSICAL                 (USB_TYPE_CLASS | 0x03)
220 #define USB_DT_HUB                      (USB_TYPE_CLASS | 0x09)
221
222 /*
223  * Descriptor sizes per descriptor type
224  */
225 #define USB_DT_DEVICE_SIZE              18
226 #define USB_DT_CONFIG_SIZE              9
227 #define USB_DT_INTERFACE_SIZE           9
228 #define USB_DT_ENDPOINT_SIZE            7
229 #define USB_DT_ENDPOINT_AUDIO_SIZE      9       /* Audio extension */
230 #define USB_DT_HUB_NONVAR_SIZE          7
231 #define USB_DT_HID_SIZE                 9
232
233 /*
234  * Endpoints
235  */
236 #define USB_ENDPOINT_NUMBER_MASK        0x0f    /* in bEndpointAddress */
237 #define USB_ENDPOINT_DIR_MASK           0x80
238
239 #define USB_ENDPOINT_XFERTYPE_MASK      0x03    /* in bmAttributes */
240 #define USB_ENDPOINT_XFER_CONTROL       0
241 #define USB_ENDPOINT_XFER_ISOC          1
242 #define USB_ENDPOINT_XFER_BULK          2
243 #define USB_ENDPOINT_XFER_INT           3
244
245 /*
246  * USB Packet IDs (PIDs)
247  */
248 #define USB_PID_UNDEF_0                        0xf0
249 #define USB_PID_OUT                            0xe1
250 #define USB_PID_ACK                            0xd2
251 #define USB_PID_DATA0                          0xc3
252 #define USB_PID_PING                           0xb4     /* USB 2.0 */
253 #define USB_PID_SOF                            0xa5
254 #define USB_PID_NYET                           0x96     /* USB 2.0 */
255 #define USB_PID_DATA2                          0x87     /* USB 2.0 */
256 #define USB_PID_SPLIT                          0x78     /* USB 2.0 */
257 #define USB_PID_IN                             0x69
258 #define USB_PID_NAK                            0x5a
259 #define USB_PID_DATA1                          0x4b
260 #define USB_PID_PREAMBLE                       0x3c     /* Token mode */
261 #define USB_PID_ERR                            0x3c     /* USB 2.0: handshake mode */
262 #define USB_PID_SETUP                          0x2d
263 #define USB_PID_STALL                          0x1e
264 #define USB_PID_MDATA                          0x0f     /* USB 2.0 */
265
266 /*
267  * Standard requests
268  */
269 #define USB_REQ_GET_STATUS              0x00
270 #define USB_REQ_CLEAR_FEATURE           0x01
271 #define USB_REQ_SET_FEATURE             0x03
272 #define USB_REQ_SET_ADDRESS             0x05
273 #define USB_REQ_GET_DESCRIPTOR          0x06
274 #define USB_REQ_SET_DESCRIPTOR          0x07
275 #define USB_REQ_GET_CONFIGURATION       0x08
276 #define USB_REQ_SET_CONFIGURATION       0x09
277 #define USB_REQ_GET_INTERFACE           0x0A
278 #define USB_REQ_SET_INTERFACE           0x0B
279 #define USB_REQ_SYNCH_FRAME             0x0C
280
281 #define USBD_DEVICE_REQUESTS(x) (((unsigned int)x <= USB_REQ_SYNCH_FRAME) ? usbd_device_requests[x] : "UNKNOWN")
282
283 /*
284  * HID requests
285  */
286 #define USB_REQ_GET_REPORT              0x01
287 #define USB_REQ_GET_IDLE                0x02
288 #define USB_REQ_GET_PROTOCOL            0x03
289 #define USB_REQ_SET_REPORT              0x09
290 #define USB_REQ_SET_IDLE                0x0A
291 #define USB_REQ_SET_PROTOCOL            0x0B
292
293
294 /*
295  * USB Spec Release number
296  */
297
298 #if defined(CONFIG_USBD_HS)
299 #define USB_BCD_VERSION                 0x0200
300 #else
301 #define USB_BCD_VERSION                 0x0110
302 #endif
303
304
305 /*
306  * Device Requests      (c.f Table 9-2)
307  */
308
309 #define USB_REQ_DIRECTION_MASK          0x80
310 #define USB_REQ_TYPE_MASK               0x60
311 #define USB_REQ_RECIPIENT_MASK          0x1f
312
313 #define USB_REQ_DEVICE2HOST             0x80
314 #define USB_REQ_HOST2DEVICE             0x00
315
316 #define USB_REQ_TYPE_STANDARD           0x00
317 #define USB_REQ_TYPE_CLASS              0x20
318 #define USB_REQ_TYPE_VENDOR             0x40
319
320 #define USB_REQ_RECIPIENT_DEVICE        0x00
321 #define USB_REQ_RECIPIENT_INTERFACE     0x01
322 #define USB_REQ_RECIPIENT_ENDPOINT      0x02
323 #define USB_REQ_RECIPIENT_OTHER         0x03
324
325 /*
326  * get status bits
327  */
328
329 #define USB_STATUS_SELFPOWERED          0x01
330 #define USB_STATUS_REMOTEWAKEUP         0x02
331
332 #define USB_STATUS_HALT                 0x01
333
334 /*
335  * descriptor types
336  */
337
338 #define USB_DESCRIPTOR_TYPE_DEVICE                      0x01
339 #define USB_DESCRIPTOR_TYPE_CONFIGURATION               0x02
340 #define USB_DESCRIPTOR_TYPE_STRING                      0x03
341 #define USB_DESCRIPTOR_TYPE_INTERFACE                   0x04
342 #define USB_DESCRIPTOR_TYPE_ENDPOINT                    0x05
343 #define USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER            0x06
344 #define USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION   0x07
345 #define USB_DESCRIPTOR_TYPE_INTERFACE_POWER             0x08
346 #define USB_DESCRIPTOR_TYPE_HID                         0x21
347 #define USB_DESCRIPTOR_TYPE_REPORT                      0x22
348
349 #define USBD_DEVICE_DESCRIPTORS(x) (((unsigned int)x <= USB_DESCRIPTOR_TYPE_INTERFACE_POWER) ? \
350                 usbd_device_descriptors[x] : "UNKNOWN")
351
352 /*
353  * standard feature selectors
354  */
355 #define USB_ENDPOINT_HALT               0x00
356 #define USB_DEVICE_REMOTE_WAKEUP        0x01
357 #define USB_TEST_MODE                   0x02
358
359
360 /* USB Requests
361  *
362  */
363
364 struct usb_device_request {
365         u8 bmRequestType;
366         u8 bRequest;
367         u16 wValue;
368         u16 wIndex;
369         u16 wLength;
370 } __attribute__ ((packed));
371
372
373 /* USB Status
374  *
375  */
376 typedef enum urb_send_status {
377         SEND_IN_PROGRESS,
378         SEND_FINISHED_OK,
379         SEND_FINISHED_ERROR,
380         RECV_READY,
381         RECV_OK,
382         RECV_ERROR
383 } urb_send_status_t;
384
385 /*
386  * Device State (c.f USB Spec 2.0 Figure 9-1)
387  *
388  * What state the usb device is in.
389  *
390  * Note the state does not change if the device is suspended, we simply set a
391  * flag to show that it is suspended.
392  *
393  */
394 typedef enum usb_device_state {
395         STATE_INIT,             /* just initialized */
396         STATE_CREATED,          /* just created */
397         STATE_ATTACHED,         /* we are attached */
398         STATE_POWERED,          /* we have seen power indication (electrical bus signal) */
399         STATE_DEFAULT,          /* we been reset */
400         STATE_ADDRESSED,        /* we have been addressed (in default configuration) */
401         STATE_CONFIGURED,       /* we have seen a set configuration device command */
402         STATE_UNKNOWN,          /* destroyed */
403 } usb_device_state_t;
404
405 #define USBD_DEVICE_STATE(x) (((unsigned int)x <= STATE_UNKNOWN) ? usbd_device_states[x] : "UNKNOWN")
406
407 /*
408  * Device status
409  *
410  * Overall state
411  */
412 typedef enum usb_device_status {
413         USBD_OPENING,           /* we are currently opening */
414         USBD_OK,                /* ok to use */
415         USBD_SUSPENDED,         /* we are currently suspended */
416         USBD_CLOSING,           /* we are currently closing */
417 } usb_device_status_t;
418
419 #define USBD_DEVICE_STATUS(x) (((unsigned int)x <= USBD_CLOSING) ? usbd_device_status[x] : "UNKNOWN")
420
421 /*
422  * Device Events
423  *
424  * These are defined in the USB Spec (c.f USB Spec 2.0 Figure 9-1).
425  *
426  * There are additional events defined to handle some extra actions we need
427  * to have handled.
428  *
429  */
430 typedef enum usb_device_event {
431
432         DEVICE_UNKNOWN,         /* bi - unknown event */
433         DEVICE_INIT,            /* bi  - initialize */
434         DEVICE_CREATE,          /* bi  - */
435         DEVICE_HUB_CONFIGURED,  /* bi  - bus has been plugged int */
436         DEVICE_RESET,           /* bi  - hub has powered our port */
437
438         DEVICE_ADDRESS_ASSIGNED,        /* ep0 - set address setup received */
439         DEVICE_CONFIGURED,      /* ep0 - set configure setup received */
440         DEVICE_SET_INTERFACE,   /* ep0 - set interface setup received */
441
442         DEVICE_SET_FEATURE,     /* ep0 - set feature setup received */
443         DEVICE_CLEAR_FEATURE,   /* ep0 - clear feature setup received */
444
445         DEVICE_DE_CONFIGURED,   /* ep0 - set configure setup received for ?? */
446
447         DEVICE_BUS_INACTIVE,    /* bi  - bus in inactive (no SOF packets) */
448         DEVICE_BUS_ACTIVITY,    /* bi  - bus is active again */
449
450         DEVICE_POWER_INTERRUPTION,      /* bi  - hub has depowered our port */
451         DEVICE_HUB_RESET,       /* bi  - bus has been unplugged */
452         DEVICE_DESTROY,         /* bi  - device instance should be destroyed */
453
454         DEVICE_HOTPLUG,         /* bi  - a hotplug event has occured */
455
456         DEVICE_FUNCTION_PRIVATE,        /* function - private */
457
458 } usb_device_event_t;
459
460
461 typedef struct urb_link {
462         struct urb_link *next;
463         struct urb_link *prev;
464 } urb_link;
465
466 /* USB Data structure - for passing data around.
467  *
468  * This is used for both sending and receiving data.
469  *
470  * The callback function is used to let the function driver know when
471  * transmitted data has been sent.
472  *
473  * The callback function is set by the alloc_recv function when an urb is
474  * allocated for receiving data for an endpoint and used to call the
475  * function driver to inform it that data has arrived.
476  */
477
478 /* in linux we'd malloc this, but in u-boot we prefer static data */
479 #define URB_BUF_SIZE 512
480
481 struct urb {
482
483         struct usb_endpoint_instance *endpoint;
484         struct usb_device_instance *device;
485
486         struct usb_device_request device_request;       /* contents of received SETUP packet */
487
488         struct urb_link link;   /* embedded struct for circular doubly linked list of urbs */
489
490         u8* buffer;
491         unsigned int buffer_length;
492         unsigned int actual_length;
493
494         urb_send_status_t status;
495         int data;
496
497         u16 buffer_data[URB_BUF_SIZE];  /* data received (OUT) or being sent (IN) */
498 };
499
500 /* Endpoint configuration
501  *
502  * Per endpoint configuration data. Used to track which function driver owns
503  * an endpoint.
504  *
505  */
506 struct usb_endpoint_instance {
507         int endpoint_address;   /* logical endpoint address */
508
509         /* control */
510         int status;             /* halted */
511         int state;              /* available for use by bus interface driver */
512
513         /* receive side */
514         struct urb_link rcv;    /* received urbs */
515         struct urb_link rdy;    /* empty urbs ready to receive */
516         struct urb *rcv_urb;    /* active urb */
517         int rcv_attributes;     /* copy of bmAttributes from endpoint descriptor */
518         int rcv_packetSize;     /* maximum packet size from endpoint descriptor */
519         int rcv_transferSize;   /* maximum transfer size from function driver */
520         int rcv_queue;
521
522         /* transmit side */
523         struct urb_link tx;     /* urbs ready to transmit */
524         struct urb_link done;   /* transmitted urbs */
525         struct urb *tx_urb;     /* active urb */
526         int tx_attributes;      /* copy of bmAttributes from endpoint descriptor */
527         int tx_packetSize;      /* maximum packet size from endpoint descriptor */
528         int tx_transferSize;    /* maximum transfer size from function driver */
529         int tx_queue;
530
531         int sent;               /* data already sent */
532         int last;               /* data sent in last packet XXX do we need this */
533 };
534
535 struct usb_alternate_instance {
536         struct usb_interface_descriptor *interface_descriptor;
537
538         int endpoints;
539         int *endpoint_transfersize_array;
540         struct usb_endpoint_descriptor **endpoints_descriptor_array;
541 };
542
543 struct usb_interface_instance {
544         int alternates;
545         struct usb_alternate_instance *alternates_instance_array;
546 };
547
548 struct usb_configuration_instance {
549         int interfaces;
550         struct usb_configuration_descriptor *configuration_descriptor;
551         struct usb_interface_instance *interface_instance_array;
552 };
553
554
555 /* USB Device Instance
556  *
557  * For each physical bus interface we create a logical device structure. This
558  * tracks all of the required state to track the USB HOST's view of the device.
559  *
560  * Keep track of the device configuration for a real physical bus interface,
561  * this includes the bus interface, multiple function drivers, the current
562  * configuration and the current state.
563  *
564  * This will show:
565  *      the specific bus interface driver
566  *      the default endpoint 0 driver
567  *      the configured function driver
568  *      device state
569  *      device status
570  *      endpoint list
571  */
572
573 struct usb_device_instance {
574
575         /* generic */
576         char *name;
577         struct usb_device_descriptor *device_descriptor;        /* per device descriptor */
578 #if defined(CONFIG_USBD_HS)
579         struct usb_qualifier_descriptor *qualifier_descriptor;
580 #endif
581
582         void (*event) (struct usb_device_instance *device, usb_device_event_t event, int data);
583
584         /* Do cdc device specific control requests */
585         int (*cdc_recv_setup)(struct usb_device_request *request, struct urb *urb);
586
587         /* bus interface */
588         struct usb_bus_instance *bus;   /* which bus interface driver */
589
590         /* configuration descriptors */
591         int configurations;
592         struct usb_configuration_instance *configuration_instance_array;
593
594         /* device state */
595         usb_device_state_t device_state;        /* current USB Device state */
596         usb_device_state_t device_previous_state;       /* current USB Device state */
597
598         u8 address;             /* current address (zero is default) */
599         u8 configuration;       /* current show configuration (zero is default) */
600         u8 interface;           /* current interface (zero is default) */
601         u8 alternate;           /* alternate flag */
602
603         usb_device_status_t status;     /* device status */
604
605         int urbs_queued;        /* number of submitted urbs */
606
607         /* Shouldn't need to make this atomic, all we need is a change indicator */
608         unsigned long usbd_rxtx_timestamp;
609         unsigned long usbd_last_rxtx_timestamp;
610
611 };
612
613 /* Bus Interface configuration structure
614  *
615  * This is allocated for each configured instance of a bus interface driver.
616  *
617  * The privdata pointer may be used by the bus interface driver to store private
618  * per instance state information.
619  */
620 struct usb_bus_instance {
621
622         struct usb_device_instance *device;
623         struct usb_endpoint_instance *endpoint_array;   /* array of available configured endpoints */
624
625         int max_endpoints;      /* maximimum number of rx enpoints */
626         unsigned char                   maxpacketsize;
627
628         unsigned int serial_number;
629         char *serial_number_str;
630         void *privdata;         /* private data for the bus interface */
631
632 };
633
634 extern char *usbd_device_events[];
635 extern char *usbd_device_states[];
636 extern char *usbd_device_status[];
637 extern char *usbd_device_requests[];
638 extern char *usbd_device_descriptors[];
639
640 void urb_link_init (urb_link * ul);
641 void urb_detach (struct urb *urb);
642 urb_link *first_urb_link (urb_link * hd);
643 struct urb *first_urb (urb_link * hd);
644 struct urb *first_urb_detached (urb_link * hd);
645 void urb_append (urb_link * hd, struct urb *urb);
646
647 struct urb *usbd_alloc_urb (struct usb_device_instance *device, struct usb_endpoint_instance *endpoint);
648 void        usbd_dealloc_urb (struct urb *urb);
649
650 /*
651  * usbd_device_event is used by bus interface drivers to tell the higher layers that
652  * certain events have taken place.
653  */
654 void usbd_device_event_irq (struct usb_device_instance *conf, usb_device_event_t, int);
655 void usbd_device_event (struct usb_device_instance *conf, usb_device_event_t, int);
656
657 /* descriptors
658  *
659  * Various ways of finding descriptors based on the current device and any
660  * possible configuration / interface / endpoint for it.
661  */
662 struct usb_configuration_descriptor *usbd_device_configuration_descriptor (struct usb_device_instance *, int, int);
663 struct usb_function_instance *usbd_device_function_instance (struct usb_device_instance *, unsigned int);
664 struct usb_interface_instance *usbd_device_interface_instance (struct usb_device_instance *, int, int, int);
665 struct usb_alternate_instance *usbd_device_alternate_instance (struct usb_device_instance *, int, int, int, int);
666 struct usb_interface_descriptor *usbd_device_interface_descriptor (struct usb_device_instance *, int, int, int, int);
667 struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor_index (struct usb_device_instance *, int, int, int, int, int);
668 struct usb_class_descriptor *usbd_device_class_descriptor_index (struct usb_device_instance *, int, int, int, int, int);
669 struct usb_class_report_descriptor *usbd_device_class_report_descriptor_index( struct usb_device_instance *, int , int , int , int , int );
670 struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor (struct usb_device_instance *, int, int, int, int, int);
671 int                             usbd_device_endpoint_transfersize (struct usb_device_instance *, int, int, int, int, int);
672 struct usb_string_descriptor *usbd_get_string (u8);
673 struct usb_device_descriptor *usbd_device_device_descriptor(struct
674                 usb_device_instance *, int);
675
676 #if defined(CONFIG_USBD_HS)
677 /*
678  * is_usbd_high_speed routine needs to be defined by specific gadget driver
679  * It returns true if device enumerates at High speed
680  * Retuns false otherwise
681  */
682 int is_usbd_high_speed(void);
683 #endif
684 int usbd_endpoint_halted (struct usb_device_instance *device, int endpoint);
685 void usbd_rcv_complete(struct usb_endpoint_instance *endpoint, int len, int urb_bad);
686 void usbd_tx_complete (struct usb_endpoint_instance *endpoint);
687
688 /* These are macros used in debugging */
689 #ifdef DEBUG
690 static inline void print_urb(struct urb *u)
691 {
692         serial_printf("urb %p\n", (u));
693         serial_printf("\tendpoint %p\n", u->endpoint);
694         serial_printf("\tdevice %p\n", u->device);
695         serial_printf("\tbuffer %p\n", u->buffer);
696         serial_printf("\tbuffer_length %d\n", u->buffer_length);
697         serial_printf("\tactual_length %d\n", u->actual_length);
698         serial_printf("\tstatus %d\n", u->status);
699         serial_printf("\tdata %d\n", u->data);
700 }
701
702 static inline void print_usb_device_request(struct usb_device_request *r)
703 {
704         serial_printf("usb request\n");
705         serial_printf("\tbmRequestType 0x%2.2x\n", r->bmRequestType);
706         if ((r->bmRequestType & USB_REQ_DIRECTION_MASK) == 0)
707                 serial_printf("\t\tDirection : To device\n");
708         else
709                 serial_printf("\t\tDirection : To host\n");
710         if ((r->bmRequestType & USB_TYPE_STANDARD) == USB_TYPE_STANDARD)
711                 serial_printf("\t\tType      : Standard\n");
712         if ((r->bmRequestType & USB_TYPE_CLASS) == USB_TYPE_CLASS)
713                 serial_printf("\t\tType      : Standard\n");
714         if ((r->bmRequestType & USB_TYPE_VENDOR) == USB_TYPE_VENDOR)
715                 serial_printf("\t\tType      : Standard\n");
716         if ((r->bmRequestType & USB_TYPE_RESERVED) == USB_TYPE_RESERVED)
717                 serial_printf("\t\tType      : Standard\n");
718         if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
719             USB_REQ_RECIPIENT_DEVICE)
720                 serial_printf("\t\tRecipient : Device\n");
721         if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
722             USB_REQ_RECIPIENT_INTERFACE)
723                 serial_printf("\t\tRecipient : Interface\n");
724         if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
725             USB_REQ_RECIPIENT_ENDPOINT)
726                 serial_printf("\t\tRecipient : Endpoint\n");
727         if ((r->bmRequestType & USB_REQ_RECIPIENT_MASK) ==
728             USB_REQ_RECIPIENT_OTHER)
729                 serial_printf("\t\tRecipient : Other\n");
730         serial_printf("\tbRequest      0x%2.2x\n", r->bRequest);
731         if (r->bRequest == USB_REQ_GET_STATUS)
732                 serial_printf("\t\tGET_STATUS\n");
733         else if (r->bRequest == USB_REQ_SET_ADDRESS)
734                 serial_printf("\t\tSET_ADDRESS\n");
735         else if (r->bRequest == USB_REQ_SET_FEATURE)
736                 serial_printf("\t\tSET_FEATURE\n");
737         else if (r->bRequest == USB_REQ_GET_DESCRIPTOR)
738                 serial_printf("\t\tGET_DESCRIPTOR\n");
739         else if (r->bRequest == USB_REQ_SET_CONFIGURATION)
740                 serial_printf("\t\tSET_CONFIGURATION\n");
741         else if (r->bRequest == USB_REQ_SET_INTERFACE)
742                 serial_printf("\t\tUSB_REQ_SET_INTERFACE\n");
743         else
744                 serial_printf("\tUNKNOWN %d\n", r->bRequest);
745         serial_printf("\twValue        0x%4.4x\n", r->wValue);
746         if (r->bRequest == USB_REQ_GET_DESCRIPTOR) {
747                 switch (r->wValue >> 8) {
748                 case USB_DESCRIPTOR_TYPE_DEVICE:
749                         serial_printf("\tDEVICE\n");
750                         break;
751                 case USB_DESCRIPTOR_TYPE_CONFIGURATION:
752                         serial_printf("\tCONFIGURATION\n");
753                         break;
754                 case USB_DESCRIPTOR_TYPE_STRING:
755                         serial_printf("\tSTRING\n");
756                         break;
757                 case USB_DESCRIPTOR_TYPE_INTERFACE:
758                         serial_printf("\tINTERFACE\n");
759                         break;
760                 case USB_DESCRIPTOR_TYPE_ENDPOINT:
761                         serial_printf("\tENDPOINT\n");
762                         break;
763                 case USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER:
764                         serial_printf("\tDEVICE_QUALIFIER\n");
765                         break;
766                 case USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION:
767                         serial_printf("\tOTHER_SPEED_CONFIGURATION\n");
768                         break;
769                 case USB_DESCRIPTOR_TYPE_INTERFACE_POWER:
770                         serial_printf("\tINTERFACE_POWER\n");
771                         break;
772                 case USB_DESCRIPTOR_TYPE_HID:
773                         serial_printf("\tHID\n");
774                         break;
775                 case USB_DESCRIPTOR_TYPE_REPORT:
776                         serial_printf("\tREPORT\n");
777                         break;
778                 default:
779                         serial_printf("\tUNKNOWN TYPE\n");
780                         break;
781                 }
782         }
783         serial_printf("\twIndex        0x%4.4x\n", r->wIndex);
784         serial_printf("\twLength       0x%4.4x\n", r->wLength);
785 }
786 #else
787 /* stubs */
788 #define print_urb(u)
789 #define print_usb_device_request(r)
790 #endif /* DEBUG */
791 #endif