3 * Denis Peter, MPL AG Switzerland
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * Note: Part of this code has been derived from linux
27 /**********************************************************************
30 * The framelist / Transfer descriptor / Queue Heads are similar like
31 * in the linux usb_uhci.c.
33 * During initialization, the following skeleton is allocated in init_skel:
35 * framespecific | common chain
38 * [ 0 ]-----> TD ---------\
39 * [ 1 ]-----> TD ----------> TD ------> QH -------> QH -------> QH ---> NULL
41 * [1023]-----> TD --------/
44 * 7 TDs for 1 TD for Start of Start of End Chain
45 * INT (2-128ms) 1ms-INT CTRL Chain BULK Chain
48 * Since this is a bootloader, the isochronous transfer descriptor have been removed.
50 * Interrupt Transfers.
51 * --------------------
52 * For Interupt transfers USB_MAX_TEMP_INT_TD Transfer descriptor are available. They
53 * will be inserted after the appropriate (depending the interval setting) skeleton TD.
54 * If an interrupt has been detected the dev->irqhandler is called. The status and number
55 * of transfered bytes is stored in dev->irq_status resp. dev->irq_act_len. If the
56 * dev->irqhandler returns 0, the interrupt TD is removed and disabled. If an 1 is returned,
57 * the interrupt TD will be reactivated.
61 * Control Transfers are issued by filling the tmp_td with the appropriate data and connect
62 * them to the qh_cntrl queue header. Before other control/bulk transfers can be issued,
63 * the programm has to wait for completion. This does not allows asynchronous data transfer.
67 * Bulk Transfers are issued by filling the tmp_td with the appropriate data and connect
68 * them to the qh_bulk queue header. Before other control/bulk transfers can be issued,
69 * the programm has to wait for completion. This does not allows asynchronous data transfer.
77 #ifdef CONFIG_USB_UHCI
82 #define USB_MAX_TEMP_TD 128 /* number of temporary TDs for bulk and control transfers */
83 #define USB_MAX_TEMP_INT_TD 32 /* number of temporary TDs for Interrupt transfers */
86 /*#define USB_UHCI_DEBUG */
89 #define USB_UHCI_PRINTF(fmt,args...) printf (fmt ,##args)
91 #define USB_UHCI_PRINTF(fmt,args...)
95 static int irqvec
= -1; /* irq vector, if -1 uhci is stopped / reseted */
96 unsigned int usb_base_addr
; /* base address */
98 static uhci_td_t td_int
[8]; /* Interrupt Transfer descriptors */
99 static uhci_qh_t qh_cntrl
; /* control Queue Head */
100 static uhci_qh_t qh_bulk
; /* bulk Queue Head */
101 static uhci_qh_t qh_end
; /* end Queue Head */
102 static uhci_td_t td_last
; /* last TD (linked with end chain) */
105 static uhci_td_t tmp_td
[USB_MAX_TEMP_TD
]; /* temporary bulk/control td's */
106 static uhci_td_t tmp_int_td
[USB_MAX_TEMP_INT_TD
]; /* temporary interrupt td's */
108 static unsigned long framelist
[1024] __attribute__ ((aligned (0x1000))); /* frame list */
110 static struct virt_root_hub rh
; /* struct for root hub */
112 /**********************************************************************
113 * some forward decleration
115 int uhci_submit_rh_msg(struct usb_device
*dev
, unsigned long pipe
,
116 void *buffer
, int transfer_len
,struct devrequest
*setup
);
118 /* fill a td with the approproiate data. Link, status, info and buffer
119 * are used by the USB controller itselfes, dev is used to identify the
122 void usb_fill_td(uhci_td_t
* td
,unsigned long link
,unsigned long status
,
123 unsigned long info
, unsigned long buffer
, unsigned long dev
)
125 td
->link
=swap_32(link
);
126 td
->status
=swap_32(status
);
127 td
->info
=swap_32(info
);
128 td
->buffer
=swap_32(buffer
);
132 /* fill a qh with the approproiate data. Head and element are used by the USB controller
133 * itselfes. As soon as a valid dev_ptr is filled, a td chain is connected to the qh.
134 * Please note, that after completion of the td chain, the entry element is removed /
135 * marked invalid by the USB controller.
137 void usb_fill_qh(uhci_qh_t
* qh
,unsigned long head
,unsigned long element
)
139 qh
->head
=swap_32(head
);
140 qh
->element
=swap_32(element
);
144 /* get the status of a td->status
146 unsigned long usb_uhci_td_stat(unsigned long status
)
148 unsigned long result
=0;
149 result
|= (status
& TD_CTRL_NAK
) ? USB_ST_NAK_REC
: 0;
150 result
|= (status
& TD_CTRL_STALLED
) ? USB_ST_STALLED
: 0;
151 result
|= (status
& TD_CTRL_DBUFERR
) ? USB_ST_BUF_ERR
: 0;
152 result
|= (status
& TD_CTRL_BABBLE
) ? USB_ST_BABBLE_DET
: 0;
153 result
|= (status
& TD_CTRL_CRCTIMEO
) ? USB_ST_CRC_ERR
: 0;
154 result
|= (status
& TD_CTRL_BITSTUFF
) ? USB_ST_BIT_ERR
: 0;
155 result
|= (status
& TD_CTRL_ACTIVE
) ? USB_ST_NOT_PROC
: 0;
159 /* get the status and the transfered len of a td chain.
160 * called from the completion handler
162 int usb_get_td_status(uhci_td_t
*td
,struct usb_device
*dev
)
164 unsigned long temp
,info
;
168 if(dev
->devnum
==rh
.devnum
)
173 temp
=swap_32((unsigned long)mytd
->status
);
174 stat
=usb_uhci_td_stat(temp
);
175 info
=swap_32((unsigned long)mytd
->info
);
176 if(((info
& 0xff)!= USB_PID_SETUP
) &&
177 (((info
>> 21) & 0x7ff)!= 0x7ff) &&
178 (temp
& 0x7FF)!=0x7ff)
179 { /* if not setup and not null data pack */
180 dev
->act_len
+=(temp
& 0x7FF) + 1; /* the transfered len is act_len + 1 */
182 if(stat
) { /* status no ok */
186 temp
=swap_32((unsigned long)mytd
->link
);
187 mytd
=(uhci_td_t
*)(temp
& 0xfffffff0);
188 }while((temp
& 0x1)==0); /* process all TDs */
194 /*-------------------------------------------------------------------
196 * assembles QHs und TDs for control, bulk and iso
197 *-------------------------------------------------------------------*/
199 /* Submits a control message. That is a Setup, Data and Status transfer.
200 * Routine does not wait for completion.
202 int submit_control_msg(struct usb_device
*dev
, unsigned long pipe
, void *buffer
,
203 int transfer_len
,struct devrequest
*setup
)
205 unsigned long destination
, status
;
206 int maxsze
= usb_maxpacket(dev
, pipe
);
207 unsigned long dataptr
;
213 USB_UHCI_PRINTF("uhci_submit_control_urb: pipesize for pipe %lx is zero\n", pipe
);
216 if(((pipe
>>8)&0x7f)==rh
.devnum
) {
217 /* this is the root hub -> redirect it */
218 return uhci_submit_rh_msg(dev
,pipe
,buffer
,transfer_len
,setup
);
220 USB_UHCI_PRINTF("uhci_submit_control start len %x, maxsize %x\n",transfer_len
,maxsze
);
221 /* The "pipe" thing contains the destination in bits 8--18 */
222 destination
= (pipe
& PIPE_DEVEP_MASK
) | USB_PID_SETUP
; /* Setup stage */
224 status
= (pipe
& TD_CTRL_LS
) | TD_CTRL_ACTIVE
| (3 << 27);
225 /* (urb->transfer_flags & USB_DISABLE_SPD ? 0 : TD_CTRL_SPD); */
226 /* Build the TD for the control request, try forever, 8 bytes of data */
227 usb_fill_td(&tmp_td
[i
],UHCI_PTR_TERM
,status
, destination
| (7 << 21),(unsigned long)setup
,(unsigned long)dev
);
230 char *sp
=(char *)setup
;
231 printf("SETUP to pipe %lx: %x %x %x %x %x %x %x %x\n", pipe
,
232 sp
[0],sp
[1],sp
[2],sp
[3],sp
[4],sp
[5],sp
[6],sp
[7]);
235 dataptr
= (unsigned long)buffer
;
238 /* If direction is "send", change the frame from SETUP (0x2D)
239 to OUT (0xE1). Else change it from SETUP to IN (0x69). */
240 destination
= (pipe
& PIPE_DEVEP_MASK
) | ((pipe
& USB_DIR_IN
)==0 ? USB_PID_OUT
: USB_PID_IN
);
247 destination
^= 1 << TD_TOKEN_TOGGLE
; /* toggle DATA0/1 */
248 usb_fill_td(&tmp_td
[i
],UHCI_PTR_TERM
, status
, destination
| ((pktsze
- 1) << 21),dataptr
,(unsigned long)dev
); /* Status, pktsze bytes of data */
249 tmp_td
[i
-1].link
=swap_32((unsigned long)&tmp_td
[i
]);
255 /* Build the final TD for control status */
256 /* It's only IN if the pipe is out AND we aren't expecting data */
258 destination
&= ~UHCI_PID
;
259 if (((pipe
& USB_DIR_IN
)==0) || (transfer_len
== 0))
260 destination
|= USB_PID_IN
;
262 destination
|= USB_PID_OUT
;
263 destination
|= 1 << TD_TOKEN_TOGGLE
; /* End in Data1 */
265 status
&=~TD_CTRL_SPD
;
266 /* no limit on errors on final packet , 0 bytes of data */
267 usb_fill_td(&tmp_td
[i
],UHCI_PTR_TERM
, status
| TD_CTRL_IOC
, destination
| (UHCI_NULL_DATA_SIZE
<< 21),0,(unsigned long)dev
);
268 tmp_td
[i
-1].link
=swap_32((unsigned long)&tmp_td
[i
]); /* queue status td */
269 /* usb_show_td(i+1);*/
270 USB_UHCI_PRINTF("uhci_submit_control end (%d tmp_tds used)\n",i
);
271 /* first mark the control QH element terminated */
272 qh_cntrl
.element
=0xffffffffL
;
274 qh_cntrl
.dev_ptr
=(unsigned long)dev
;
275 /* fill in tmp_td_chain */
276 qh_cntrl
.element
=swap_32((unsigned long)&tmp_td
[0]);
280 /*-------------------------------------------------------------------
281 * Prepare TDs for bulk transfers.
283 int submit_bulk_msg(struct usb_device
*dev
, unsigned long pipe
, void *buffer
,int transfer_len
)
285 unsigned long destination
, status
,info
;
286 unsigned long dataptr
;
287 int maxsze
= usb_maxpacket(dev
, pipe
);
291 if(transfer_len
< 0) {
292 printf("Negative transfer length in submit_bulk\n");
297 /* The "pipe" thing contains the destination in bits 8--18. */
298 destination
= (pipe
& PIPE_DEVEP_MASK
) | usb_packetid (pipe
);
300 status
= (pipe
& TD_CTRL_LS
) | TD_CTRL_ACTIVE
| (3 << 27);
301 /* ((urb->transfer_flags & USB_DISABLE_SPD) ? 0 : TD_CTRL_SPD) | (3 << 27); */
302 /* Build the TDs for the bulk request */
304 dataptr
= (unsigned long)buffer
;
309 /* pktsze bytes of data */
310 info
= destination
| (((pktsze
- 1)&UHCI_NULL_DATA_SIZE
) << 21) |
311 (usb_gettoggle (dev
, usb_pipeendpoint (pipe
), usb_pipeout (pipe
)) << TD_TOKEN_TOGGLE
);
314 status
|= TD_CTRL_IOC
; /* last one generates INT */
316 usb_fill_td(&tmp_td
[i
],UHCI_PTR_TERM
, status
, info
,dataptr
,(unsigned long)dev
); /* Status, pktsze bytes of data */
318 tmp_td
[i
-1].link
=swap_32((unsigned long)&tmp_td
[i
]);
322 usb_dotoggle (dev
, usb_pipeendpoint (pipe
), usb_pipeout (pipe
));
324 /* first mark the bulk QH element terminated */
325 qh_bulk
.element
=0xffffffffL
;
327 qh_bulk
.dev_ptr
=(unsigned long)dev
;
328 /* fill in tmp_td_chain */
329 qh_bulk
.element
=swap_32((unsigned long)&tmp_td
[0]);
334 /* search a free interrupt td
336 uhci_td_t
*uhci_alloc_int_td(void)
339 for(i
=0;i
<USB_MAX_TEMP_INT_TD
;i
++) {
340 if(tmp_int_td
[i
].dev_ptr
==0) /* no device assigned -> free TD */
341 return &tmp_int_td
[i
];
347 void uhci_show_temp_int_td(void)
350 for(i
=0;i
<USB_MAX_TEMP_INT_TD
;i
++) {
351 if((tmp_int_td
[i
].dev_ptr
&0x01)!=0x1L
) /* no device assigned -> free TD */
352 printf("temp_td %d is assigned to dev %lx\n",i
,tmp_int_td
[i
].dev_ptr
);
354 printf("all others temp_tds are free\n");
357 /*-------------------------------------------------------------------
358 * submits USB interrupt (ie. polling ;-)
360 int submit_int_msg(struct usb_device
*dev
, unsigned long pipe
, void *buffer
,int transfer_len
, int interval
)
363 unsigned long status
, destination
;
364 unsigned long info
,tmp
;
366 if (interval
< 0 || interval
>= 256)
372 for (nint
= 0, n
= 1; nint
<= 8; nint
++, n
+= n
) /* round interval down to 2^n */
382 USB_UHCI_PRINTF("Rounded interval to %i, chain %i\n", interval
, nint
);
383 mytd
=uhci_alloc_int_td();
385 printf("No free INT TDs found\n");
388 status
= (pipe
& TD_CTRL_LS
) | TD_CTRL_ACTIVE
| TD_CTRL_IOC
| (3 << 27);
389 /* (urb->transfer_flags & USB_DISABLE_SPD ? 0 : TD_CTRL_SPD) | (3 << 27);
392 destination
=(pipe
& PIPE_DEVEP_MASK
) | usb_packetid (pipe
) | (((transfer_len
- 1) & 0x7ff) << 21);
394 info
= destination
| (usb_gettoggle(dev
, usb_pipeendpoint(pipe
), usb_pipeout(pipe
)) << TD_TOKEN_TOGGLE
);
395 tmp
= swap_32(td_int
[nint
].link
);
396 usb_fill_td(mytd
,tmp
,status
, info
,(unsigned long)buffer
,(unsigned long)dev
);
398 tmp
= swap_32((unsigned long)mytd
);
399 td_int
[nint
].link
=tmp
;
401 usb_dotoggle (dev
, usb_pipeendpoint (pipe
), usb_pipeout (pipe
));
406 /**********************************************************************
407 * Low Level functions
414 /* Global reset for 100ms */
415 out16r( usb_base_addr
+ USBPORTSC1
,0x0204);
416 out16r( usb_base_addr
+ USBPORTSC2
,0x0204);
417 out16r( usb_base_addr
+ USBCMD
,USBCMD_GRESET
| USBCMD_RS
);
418 /* Turn off all interrupts */
419 out16r(usb_base_addr
+ USBINTR
,0);
421 out16r( usb_base_addr
+ USBCMD
,0);
429 while(in16r(usb_base_addr
+ USBCMD
) & USBCMD_HCRESET
) {
431 printf("USBCMD_HCRESET timed out!\n");
435 /* Turn on all interrupts */
436 out16r(usb_base_addr
+ USBINTR
,USBINTR_TIMEOUT
| USBINTR_RESUME
| USBINTR_IOC
| USBINTR_SP
);
437 /* Start at frame 0 */
438 out16r(usb_base_addr
+ USBFRNUM
,0);
439 /* set Framebuffer base address */
440 out32r(usb_base_addr
+USBFLBASEADD
,(unsigned long)&framelist
);
441 /* Run and mark it configured with a 64-byte max packet */
442 out16r(usb_base_addr
+ USBCMD
,USBCMD_RS
| USBCMD_CF
| USBCMD_MAXP
);
445 /* Initialize the skeleton
447 void usb_init_skel(void)
452 for(n
=0;n
<USB_MAX_TEMP_INT_TD
;n
++)
453 tmp_int_td
[n
].dev_ptr
=0L; /* no devices connected */
455 usb_fill_td(&td_last
,UHCI_PTR_TERM
,TD_CTRL_IOC
,0,0,0L);
456 /* usb_fill_td(&td_last,UHCI_PTR_TERM,0,0,0); */
457 /* End Queue Header */
458 usb_fill_qh(&qh_end
,UHCI_PTR_TERM
,(unsigned long)&td_last
);
459 /* Bulk Queue Header */
460 temp
=(unsigned long)&qh_end
;
461 usb_fill_qh(&qh_bulk
,temp
| UHCI_PTR_QH
,UHCI_PTR_TERM
);
462 /* Control Queue Header */
463 temp
=(unsigned long)&qh_bulk
;
464 usb_fill_qh(&qh_cntrl
, temp
| UHCI_PTR_QH
,UHCI_PTR_TERM
);
465 /* 1ms Interrupt td */
466 temp
=(unsigned long)&qh_cntrl
;
467 usb_fill_td(&td_int
[0],temp
| UHCI_PTR_QH
,0,0,0,0L);
468 temp
=(unsigned long)&td_int
[0];
470 usb_fill_td(&td_int
[n
],temp
,0,0,0,0L);
471 for (n
= 0; n
< 1024; n
++) {
472 /* link all framelist pointers to one of the interrupts */
475 framelist
[n
]= swap_32((unsigned long)&td_int
[0]);
477 for (o
= 1, m
= 2; m
<= 128; o
++, m
+= m
)
478 if ((n
& (m
- 1)) == ((m
- 1) / 2))
479 framelist
[n
]= swap_32((unsigned long)&td_int
[o
]);
483 /* check the common skeleton for completed transfers, and update the status
484 * of the "connected" device. Called from the IRQ routine.
486 void usb_check_skel(void)
488 struct usb_device
*dev
;
489 /* start with the control qh */
490 if(qh_cntrl
.dev_ptr
!=0) /* it's a device assigned check if this caused IRQ */
492 dev
=(struct usb_device
*)qh_cntrl
.dev_ptr
;
493 usb_get_td_status(&tmp_td
[0],dev
); /* update status */
494 if(!(dev
->status
& USB_ST_NOT_PROC
)) { /* is not active anymore, disconnect devices */
498 /* now process the bulk */
499 if(qh_bulk
.dev_ptr
!=0) /* it's a device assigned check if this caused IRQ */
501 dev
=(struct usb_device
*)qh_bulk
.dev_ptr
;
502 usb_get_td_status(&tmp_td
[0],dev
); /* update status */
503 if(!(dev
->status
& USB_ST_NOT_PROC
)) { /* is not active anymore, disconnect devices */
509 /* check the interrupt chain, ubdate the status of the appropriate device,
510 * call the appropriate irqhandler and reactivate the TD if the irqhandler
513 void usb_check_int_chain(void)
516 unsigned long link
,status
;
517 struct usb_device
*dev
;
518 uhci_td_t
*td
,*prevtd
;
521 prevtd
= &td_int
[i
]; /* the first previous td is the skeleton td */
522 link
=swap_32(td_int
[i
].link
) & 0xfffffff0; /* next in chain */
523 td
=(uhci_td_t
*)link
; /* assign it */
524 /* all interrupt TDs are finally linked to the td_int[0].
525 * so we process all until we find the td_int[0].
526 * if int0 chain points to a QH, we're also done
528 while(((i
>0) && (link
!= (unsigned long)&td_int
[0])) ||
529 ((i
==0) && !(swap_32(td
->link
) & UHCI_PTR_QH
)))
531 /* check if a device is assigned with this td */
532 status
=swap_32(td
->status
);
533 if((td
->dev_ptr
!=0L) && !(status
& TD_CTRL_ACTIVE
)) {
534 /* td is not active and a device is assigned -> call irqhandler */
535 dev
=(struct usb_device
*)td
->dev_ptr
;
536 dev
->irq_act_len
=((status
& 0x7FF)==0x7FF) ? 0 : (status
& 0x7FF) + 1; /* transfered length */
537 dev
->irq_status
=usb_uhci_td_stat(status
); /* get status */
538 res
=dev
->irq_handle(dev
); /* call irqhandler */
541 status
|=TD_CTRL_ACTIVE
;
542 td
->status
=swap_32(status
);
543 prevtd
=td
; /* previous td = this td */
546 prevtd
->link
=td
->link
; /* link previous td directly to the nex td -> unlinked */
547 /* remove device pointer */
550 } /* if we call the irq handler */
551 link
=swap_32(td
->link
) & 0xfffffff0; /* next in chain */
552 td
=(uhci_td_t
*)link
; /* assign it */
553 } /* process all td in this int chain */
554 } /* next interrupt chain */
558 /* usb interrupt service routine.
560 void handle_usb_interrupt(void)
562 unsigned short status
;
565 * Read the interrupt status, and write it back to clear the
569 status
= in16r(usb_base_addr
+ USBSTS
);
571 if (!status
) /* shared interrupt, not mine */
574 /* remove host controller halted state */
575 if ((status
&0x20) && ((in16r(usb_base_addr
+USBCMD
) && USBCMD_RS
)==0)) {
576 out16r(usb_base_addr
+ USBCMD
, USBCMD_RS
| in16r(usb_base_addr
+ USBCMD
));
579 usb_check_int_chain(); /* call interrupt handlers for int tds */
580 usb_check_skel(); /* call completion handler for common transfer routines */
581 out16r(usb_base_addr
+USBSTS
,status
);
587 int usb_lowlevel_init(void)
592 * HJF - configure IRQ and base from variables optionally.
597 busdevfunc
=pci_find_device(USB_UHCI_VEND_ID
,USB_UHCI_DEV_ID
,0); /* get PCI Device ID */
598 if(busdevfunc
== -1) {
599 printf("Error USB UHCI (%04X,%04X) not found\n",USB_UHCI_VEND_ID
,USB_UHCI_DEV_ID
);
604 s
= getenv("usb_irq");
608 pci_write_config_byte(busdevfunc
, PCI_INTERRUPT_LINE
, temp
);
612 pci_read_config_byte(busdevfunc
,PCI_INTERRUPT_LINE
,&temp
);
614 s
= getenv("usb_base");
619 pci_write_config_dword(busdevfunc
, PCI_BASE_ADDRESS_4
, temp2
|0x01);
623 irq_free_handler(irqvec
);
624 USB_UHCI_PRINTF("Interrupt Line = %d\n",irqvec
);
625 pci_read_config_byte(busdevfunc
,PCI_INTERRUPT_PIN
,&temp
);
626 USB_UHCI_PRINTF("Interrupt Pin = %ld\n",temp
);
627 pci_read_config_dword(busdevfunc
,PCI_BASE_ADDRESS_4
,&usb_base_addr
);
628 USB_UHCI_PRINTF("IO Base Address = 0x%lx\n",usb_base_addr
);
629 usb_base_addr
&=0xFFFFFFF0;
630 usb_base_addr
+=CONFIG_SYS_ISA_IO_BASE_ADDRESS
;
635 irq_install_handler(irqvec
, (interrupt_handler_t
*)handle_usb_interrupt
, NULL
);
636 irq_install_handler(0, (interrupt_handler_t
*)handle_usb_interrupt
, NULL
);
643 int usb_lowlevel_stop(void)
647 irq_free_handler(irqvec
);
654 /*******************************************************************************************
656 * Since the uhci does not have a real HUB, we simulate one ;-)
661 #define USB_RH_PRINTF(fmt,args...) printf (fmt ,##args)
662 static void usb_display_wValue(unsigned short wValue
,unsigned short wIndex
);
663 static void usb_display_Req(unsigned short req
);
665 #define USB_RH_PRINTF(fmt,args...)
666 static void usb_display_wValue(unsigned short wValue
,unsigned short wIndex
) {}
667 static void usb_display_Req(unsigned short req
) {}
670 static unsigned char root_hub_dev_des
[] =
672 0x12, /* __u8 bLength; */
673 0x01, /* __u8 bDescriptorType; Device */
674 0x00, /* __u16 bcdUSB; v1.0 */
676 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
677 0x00, /* __u8 bDeviceSubClass; */
678 0x00, /* __u8 bDeviceProtocol; */
679 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
680 0x00, /* __u16 idVendor; */
682 0x00, /* __u16 idProduct; */
684 0x00, /* __u16 bcdDevice; */
686 0x01, /* __u8 iManufacturer; */
687 0x00, /* __u8 iProduct; */
688 0x00, /* __u8 iSerialNumber; */
689 0x01 /* __u8 bNumConfigurations; */
693 /* Configuration descriptor */
694 static unsigned char root_hub_config_des
[] =
696 0x09, /* __u8 bLength; */
697 0x02, /* __u8 bDescriptorType; Configuration */
698 0x19, /* __u16 wTotalLength; */
700 0x01, /* __u8 bNumInterfaces; */
701 0x01, /* __u8 bConfigurationValue; */
702 0x00, /* __u8 iConfiguration; */
703 0x40, /* __u8 bmAttributes;
704 Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */
705 0x00, /* __u8 MaxPower; */
708 0x09, /* __u8 if_bLength; */
709 0x04, /* __u8 if_bDescriptorType; Interface */
710 0x00, /* __u8 if_bInterfaceNumber; */
711 0x00, /* __u8 if_bAlternateSetting; */
712 0x01, /* __u8 if_bNumEndpoints; */
713 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */
714 0x00, /* __u8 if_bInterfaceSubClass; */
715 0x00, /* __u8 if_bInterfaceProtocol; */
716 0x00, /* __u8 if_iInterface; */
719 0x07, /* __u8 ep_bLength; */
720 0x05, /* __u8 ep_bDescriptorType; Endpoint */
721 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
722 0x03, /* __u8 ep_bmAttributes; Interrupt */
723 0x08, /* __u16 ep_wMaxPacketSize; 8 Bytes */
725 0xff /* __u8 ep_bInterval; 255 ms */
729 static unsigned char root_hub_hub_des
[] =
731 0x09, /* __u8 bLength; */
732 0x29, /* __u8 bDescriptorType; Hub-descriptor */
733 0x02, /* __u8 bNbrPorts; */
734 0x00, /* __u16 wHubCharacteristics; */
736 0x01, /* __u8 bPwrOn2pwrGood; 2ms */
737 0x00, /* __u8 bHubContrCurrent; 0 mA */
738 0x00, /* __u8 DeviceRemovable; *** 7 Ports max *** */
739 0xff /* __u8 PortPwrCtrlMask; *** 7 ports max *** */
742 static unsigned char root_hub_str_index0
[] =
744 0x04, /* __u8 bLength; */
745 0x03, /* __u8 bDescriptorType; String-descriptor */
746 0x09, /* __u8 lang ID */
747 0x04, /* __u8 lang ID */
750 static unsigned char root_hub_str_index1
[] =
752 28, /* __u8 bLength; */
753 0x03, /* __u8 bDescriptorType; String-descriptor */
754 'U', /* __u8 Unicode */
755 0, /* __u8 Unicode */
756 'H', /* __u8 Unicode */
757 0, /* __u8 Unicode */
758 'C', /* __u8 Unicode */
759 0, /* __u8 Unicode */
760 'I', /* __u8 Unicode */
761 0, /* __u8 Unicode */
762 ' ', /* __u8 Unicode */
763 0, /* __u8 Unicode */
764 'R', /* __u8 Unicode */
765 0, /* __u8 Unicode */
766 'o', /* __u8 Unicode */
767 0, /* __u8 Unicode */
768 'o', /* __u8 Unicode */
769 0, /* __u8 Unicode */
770 't', /* __u8 Unicode */
771 0, /* __u8 Unicode */
772 ' ', /* __u8 Unicode */
773 0, /* __u8 Unicode */
774 'H', /* __u8 Unicode */
775 0, /* __u8 Unicode */
776 'u', /* __u8 Unicode */
777 0, /* __u8 Unicode */
778 'b', /* __u8 Unicode */
779 0, /* __u8 Unicode */
784 * Root Hub Control Pipe (interrupt Pipes are not supported)
788 int uhci_submit_rh_msg(struct usb_device
*dev
, unsigned long pipe
, void *buffer
,int transfer_len
,struct devrequest
*cmd
)
791 int leni
= transfer_len
;
797 unsigned short cstatus
;
799 unsigned short bmRType_bReq
;
800 unsigned short wValue
;
801 unsigned short wIndex
;
802 unsigned short wLength
;
804 if (usb_pipeint(pipe
)) {
805 printf("Root-Hub submit IRQ: NOT implemented\n");
809 uhci
->rh
.interval
= urb
->interval
;
810 rh_init_int_timer (urb
);
814 bmRType_bReq
= cmd
->requesttype
| cmd
->request
<< 8;
815 wValue
= swap_16(cmd
->value
);
816 wIndex
= swap_16(cmd
->index
);
817 wLength
= swap_16(cmd
->length
);
818 usb_display_Req(bmRType_bReq
);
819 for (i
= 0; i
< 8; i
++)
821 USB_RH_PRINTF("Root-Hub: adr: %2x cmd(%1x): %02x%02x %04x %04x %04x\n",
822 dev
->devnum
, 8, cmd
->requesttype
,cmd
->request
, wValue
, wIndex
, wLength
);
824 switch (bmRType_bReq
) {
825 /* Request Destination:
826 without flags: Device,
827 RH_INTERFACE: interface,
828 RH_ENDPOINT: endpoint,
829 RH_CLASS means HUB here,
830 RH_OTHER | RH_CLASS almost ever means HUB_PORT here
834 *(unsigned short *) data
= swap_16(1);
837 case RH_GET_STATUS
| RH_INTERFACE
:
838 *(unsigned short *) data
= swap_16(0);
841 case RH_GET_STATUS
| RH_ENDPOINT
:
842 *(unsigned short *) data
= swap_16(0);
845 case RH_GET_STATUS
| RH_CLASS
:
846 *(unsigned long *) data
= swap_32(0);
848 break; /* hub power ** */
849 case RH_GET_STATUS
| RH_OTHER
| RH_CLASS
:
851 status
= in16r(usb_base_addr
+ USBPORTSC1
+ 2 * (wIndex
- 1));
852 cstatus
= ((status
& USBPORTSC_CSC
) >> (1 - 0)) |
853 ((status
& USBPORTSC_PEC
) >> (3 - 1)) |
854 (rh
.c_p_r
[wIndex
- 1] << (0 + 4));
855 status
= (status
& USBPORTSC_CCS
) |
856 ((status
& USBPORTSC_PE
) >> (2 - 1)) |
857 ((status
& USBPORTSC_SUSP
) >> (12 - 2)) |
858 ((status
& USBPORTSC_PR
) >> (9 - 4)) |
859 (1 << 8) | /* power on ** */
860 ((status
& USBPORTSC_LSDA
) << (-8 + 9));
862 *(unsigned short *) data
= swap_16(status
);
863 *(unsigned short *) (data
+ 2) = swap_16(cstatus
);
866 case RH_CLEAR_FEATURE
| RH_ENDPOINT
:
868 case (RH_ENDPOINT_STALL
):
874 case RH_CLEAR_FEATURE
| RH_CLASS
:
876 case (RH_C_HUB_OVER_CURRENT
):
877 len
=0; /* hub power over current ** */
882 case RH_CLEAR_FEATURE
| RH_OTHER
| RH_CLASS
:
883 usb_display_wValue(wValue
,wIndex
);
885 case (RH_PORT_ENABLE
):
886 status
= in16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1));
887 status
= (status
& 0xfff5) & ~USBPORTSC_PE
;
888 out16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1),status
);
891 case (RH_PORT_SUSPEND
):
892 status
= in16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1));
893 status
= (status
& 0xfff5) & ~USBPORTSC_SUSP
;
894 out16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1),status
);
897 case (RH_PORT_POWER
):
898 len
=0; /* port power ** */
900 case (RH_C_PORT_CONNECTION
):
901 status
= in16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1));
902 status
= (status
& 0xfff5) | USBPORTSC_CSC
;
903 out16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1),status
);
906 case (RH_C_PORT_ENABLE
):
907 status
= in16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1));
908 status
= (status
& 0xfff5) | USBPORTSC_PEC
;
909 out16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1),status
);
912 case (RH_C_PORT_SUSPEND
):
913 /*** WR_RH_PORTSTAT(RH_PS_PSSC); */
916 case (RH_C_PORT_OVER_CURRENT
):
919 case (RH_C_PORT_RESET
):
920 rh
.c_p_r
[wIndex
- 1] = 0;
925 case RH_SET_FEATURE
| RH_OTHER
| RH_CLASS
:
926 usb_display_wValue(wValue
,wIndex
);
928 case (RH_PORT_SUSPEND
):
929 status
= in16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1));
930 status
= (status
& 0xfff5) | USBPORTSC_SUSP
;
931 out16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1),status
);
934 case (RH_PORT_RESET
):
935 status
= in16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1));
936 status
= (status
& 0xfff5) | USBPORTSC_PR
;
937 out16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1),status
);
939 status
= (status
& 0xfff5) & ~USBPORTSC_PR
;
940 out16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1),status
);
942 status
= (status
& 0xfff5) | USBPORTSC_PE
;
943 out16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1),status
);
945 status
= (status
& 0xfff5) | 0xa;
946 out16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1),status
);
949 case (RH_PORT_POWER
):
950 len
=0; /* port power ** */
952 case (RH_PORT_ENABLE
):
953 status
= in16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1));
954 status
= (status
& 0xfff5) | USBPORTSC_PE
;
955 out16r(usb_base_addr
+USBPORTSC1
+2*(wIndex
-1),status
);
965 case RH_GET_DESCRIPTOR
:
966 switch ((wValue
& 0xff00) >> 8) {
967 case (0x01): /* device descriptor */
968 i
=sizeof(root_hub_config_des
);
969 status
=i
> wLength
? wLength
: i
;
970 len
= leni
> status
? status
: leni
;
971 memcpy (data
, root_hub_dev_des
, len
);
973 case (0x02): /* configuration descriptor */
974 i
=sizeof(root_hub_config_des
);
975 status
=i
> wLength
? wLength
: i
;
976 len
= leni
> status
? status
: leni
;
977 memcpy (data
, root_hub_config_des
, len
);
979 case (0x03): /*string descriptors */
981 i
=sizeof(root_hub_str_index0
);
982 status
= i
> wLength
? wLength
: i
;
983 len
= leni
> status
? status
: leni
;
984 memcpy (data
, root_hub_str_index0
, len
);
988 i
=sizeof(root_hub_str_index1
);
989 status
= i
> wLength
? wLength
: i
;
990 len
= leni
> status
? status
: leni
;
991 memcpy (data
, root_hub_str_index1
, len
);
994 stat
= USB_ST_STALLED
;
998 case RH_GET_DESCRIPTOR
| RH_CLASS
:
999 root_hub_hub_des
[2] = 2;
1000 i
=sizeof(root_hub_hub_des
);
1001 status
= i
> wLength
? wLength
: i
;
1002 len
= leni
> status
? status
: leni
;
1003 memcpy (data
, root_hub_hub_des
, len
);
1005 case RH_GET_CONFIGURATION
:
1006 *(unsigned char *) data
= 0x01;
1009 case RH_SET_CONFIGURATION
:
1013 stat
= USB_ST_STALLED
;
1015 USB_RH_PRINTF("Root-Hub stat %lx port1: %x port2: %x\n\n",stat
,
1016 in16r(usb_base_addr
+ USBPORTSC1
), in16r(usb_base_addr
+ USBPORTSC2
));
1023 /********************************************************************************
1024 * Some Debug Routines
1029 static void usb_display_Req(unsigned short req
)
1031 USB_RH_PRINTF("- Root-Hub Request: ");
1034 USB_RH_PRINTF("Get Status ");
1036 case RH_GET_STATUS
| RH_INTERFACE
:
1037 USB_RH_PRINTF("Get Status Interface ");
1039 case RH_GET_STATUS
| RH_ENDPOINT
:
1040 USB_RH_PRINTF("Get Status Endpoint ");
1042 case RH_GET_STATUS
| RH_CLASS
:
1043 USB_RH_PRINTF("Get Status Class");
1044 break; /* hub power ** */
1045 case RH_GET_STATUS
| RH_OTHER
| RH_CLASS
:
1046 USB_RH_PRINTF("Get Status Class Others");
1048 case RH_CLEAR_FEATURE
| RH_ENDPOINT
:
1049 USB_RH_PRINTF("Clear Feature Endpoint ");
1051 case RH_CLEAR_FEATURE
| RH_CLASS
:
1052 USB_RH_PRINTF("Clear Feature Class ");
1054 case RH_CLEAR_FEATURE
| RH_OTHER
| RH_CLASS
:
1055 USB_RH_PRINTF("Clear Feature Other Class ");
1057 case RH_SET_FEATURE
| RH_OTHER
| RH_CLASS
:
1058 USB_RH_PRINTF("Set Feature Other Class ");
1060 case RH_SET_ADDRESS
:
1061 USB_RH_PRINTF("Set Address ");
1063 case RH_GET_DESCRIPTOR
:
1064 USB_RH_PRINTF("Get Descriptor ");
1066 case RH_GET_DESCRIPTOR
| RH_CLASS
:
1067 USB_RH_PRINTF("Get Descriptor Class ");
1069 case RH_GET_CONFIGURATION
:
1070 USB_RH_PRINTF("Get Configuration ");
1072 case RH_SET_CONFIGURATION
:
1073 USB_RH_PRINTF("Get Configuration ");
1076 USB_RH_PRINTF("****UNKNOWN**** 0x%04X ",req
);
1078 USB_RH_PRINTF("\n");
1082 static void usb_display_wValue(unsigned short wValue
,unsigned short wIndex
)
1085 case (RH_PORT_ENABLE
):
1086 USB_RH_PRINTF("Root-Hub: Enable Port %d\n",wIndex
);
1088 case (RH_PORT_SUSPEND
):
1089 USB_RH_PRINTF("Root-Hub: Suspend Port %d\n",wIndex
);
1091 case (RH_PORT_POWER
):
1092 USB_RH_PRINTF("Root-Hub: Port Power %d\n",wIndex
);
1094 case (RH_C_PORT_CONNECTION
):
1095 USB_RH_PRINTF("Root-Hub: C Port Connection Port %d\n",wIndex
);
1097 case (RH_C_PORT_ENABLE
):
1098 USB_RH_PRINTF("Root-Hub: C Port Enable Port %d\n",wIndex
);
1100 case (RH_C_PORT_SUSPEND
):
1101 USB_RH_PRINTF("Root-Hub: C Port Suspend Port %d\n",wIndex
);
1103 case (RH_C_PORT_OVER_CURRENT
):
1104 USB_RH_PRINTF("Root-Hub: C Port Over Current Port %d\n",wIndex
);
1106 case (RH_C_PORT_RESET
):
1107 USB_RH_PRINTF("Root-Hub: C Port reset Port %d\n",wIndex
);
1110 USB_RH_PRINTF("Root-Hub: unknown %x %x\n",wValue
,wIndex
);
1118 #ifdef USB_UHCI_DEBUG
1120 static int usb_display_td(uhci_td_t
*td
)
1125 printf("TD at %p:\n",td
);
1127 tmp
=swap_32(td
->link
);
1128 printf("Link points to 0x%08lX, %s first, %s, %s\n",tmp
&0xfffffff0,
1129 ((tmp
& 0x4)==0x4) ? "Depth" : "Breath",
1130 ((tmp
& 0x2)==0x2) ? "QH" : "TD",
1131 ((tmp
& 0x1)==0x1) ? "invalid" : "valid");
1132 valid
=((tmp
& 0x1)==0x0);
1133 tmp
=swap_32(td
->status
);
1134 printf(" %s %ld Errors %s %s %s \n %s %s %s %s %s %s\n Len 0x%lX\n",
1135 (((tmp
>>29)&0x1)==0x1) ? "SPD Enable" : "SPD Disable",
1137 (((tmp
>>26)&0x1)==0x1) ? "Low Speed" : "Full Speed",
1138 (((tmp
>>25)&0x1)==0x1) ? "ISO " : "",
1139 (((tmp
>>24)&0x1)==0x1) ? "IOC " : "",
1140 (((tmp
>>23)&0x1)==0x1) ? "Active " : "Inactive ",
1141 (((tmp
>>22)&0x1)==0x1) ? "Stalled" : "",
1142 (((tmp
>>21)&0x1)==0x1) ? "Data Buffer Error" : "",
1143 (((tmp
>>20)&0x1)==0x1) ? "Babble" : "",
1144 (((tmp
>>19)&0x1)==0x1) ? "NAK" : "",
1145 (((tmp
>>18)&0x1)==0x1) ? "Bitstuff Error" : "",
1147 tmp
=swap_32(td
->info
);
1148 printf(" MaxLen 0x%lX\n",((tmp
>>21)&0x7FF));
1149 printf(" %s Endpoint 0x%lX Dev Addr 0x%lX PID 0x%lX\n",((tmp
>>19)&0x1)==0x1 ? "TOGGLE" : "",
1150 ((tmp
>>15)&0xF),((tmp
>>8)&0x7F),tmp
&0xFF);
1151 tmp
=swap_32(td
->buffer
);
1152 printf(" Buffer 0x%08lX\n",tmp
);
1153 printf(" DEV %08lX\n",td
->dev_ptr
);
1158 void usb_show_td(int max
)
1162 for(i
=0;i
<max
;i
++) {
1163 usb_display_td(&tmp_td
[i
]);
1169 printf("tmp_td[%d]\n",i
);
1170 }while(usb_display_td(&tmp_td
[i
++]));
1176 #endif /* CONFIG_USB_UHCI */