2 * URB OHCI HCD (Host Controller Driver) for USB on the AT91RM9200 and PCI bus.
4 * Interrupt support is added. Now, it has been tested
5 * on ULI1575 chip and works well with USB keyboard.
8 * Zhang Wei, Freescale Semiconductor, Inc. <wei.zhang@freescale.com>
11 * Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
13 * Note: Much of this code has been derived from Linux 2.4
14 * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
15 * (C) Copyright 2000-2002 David Brownell
17 * Modified for the MP2USB by (C) Copyright 2005 Eric Benard
18 * ebenard@eukrea.com - based on s3c24x0's driver
20 * SPDX-License-Identifier: GPL-2.0+
24 * 1 - Read doc/README.generic_usb_ohci
25 * 2 - this driver is intended for use with USB Mass Storage Devices
26 * (BBB) and USB keyboard. There is NO support for Isochronous pipes!
27 * 2 - when running on a PQFP208 AT91RM9200, define CONFIG_AT91C_PQFP_UHPBUG
28 * to activate workaround for bug #41 or this driver will NOT work!
32 #include <asm/byteorder.h>
36 #if defined(CONFIG_PCI_OHCI)
38 #if !defined(CONFIG_PCI_OHCI_DEVNO)
39 #define CONFIG_PCI_OHCI_DEVNO 0
49 #ifdef CONFIG_AT91RM9200
50 #include <asm/arch/hardware.h> /* needed for AT91_USB_HOST_BASE */
53 #if defined(CONFIG_CPU_ARM920T) || \
54 defined(CONFIG_S3C24X0) || \
55 defined(CONFIG_440EP) || \
56 defined(CONFIG_PCI_OHCI) || \
57 defined(CONFIG_MPC5200) || \
58 defined(CONFIG_SYS_OHCI_USE_NPS)
59 # define OHCI_USE_NPS /* force NoPowerSwitching mode */
62 #undef OHCI_VERBOSE_DEBUG /* not always helpful */
65 #undef OHCI_FILL_TRACE
67 /* For initializing controller (mask in an HCFS mode too) */
68 #define OHCI_CONTROL_INIT \
69 (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE
71 #ifdef CONFIG_PCI_OHCI
72 static struct pci_device_id ohci_pci_ids
[] = {
73 {0x10b9, 0x5237}, /* ULI1575 PCI OHCI module ids */
74 {0x1033, 0x0035}, /* NEC PCI OHCI module ids */
75 {0x1131, 0x1561}, /* Philips 1561 PCI OHCI module ids */
76 /* Please add supported PCI OHCI controller ids here */
81 #ifdef CONFIG_PCI_EHCI_DEVNO
82 static struct pci_device_id ehci_pci_ids
[] = {
83 {0x1131, 0x1562}, /* Philips 1562 PCI EHCI module ids */
84 /* Please add supported PCI EHCI controller ids here */
90 #define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg)
92 #define dbg(format, arg...) do {} while (0)
94 #define err(format, arg...) printf("ERROR: " format "\n", ## arg)
96 #define info(format, arg...) printf("INFO: " format "\n", ## arg)
98 #define info(format, arg...) do {} while (0)
101 #ifdef CONFIG_SYS_OHCI_BE_CONTROLLER
102 # define m16_swap(x) cpu_to_be16(x)
103 # define m32_swap(x) cpu_to_be32(x)
105 # define m16_swap(x) cpu_to_le16(x)
106 # define m32_swap(x) cpu_to_le32(x)
107 #endif /* CONFIG_SYS_OHCI_BE_CONTROLLER */
109 /* We really should do proper cache flushing everywhere */
110 #define flush_dcache_buffer(addr, size) \
111 flush_dcache_range((unsigned long)(addr), \
112 ALIGN((unsigned long)(addr) + size, ARCH_DMA_MINALIGN))
113 #define invalidate_dcache_buffer(addr, size) \
114 invalidate_dcache_range((unsigned long)(addr), \
115 ALIGN((unsigned long)(addr) + size, ARCH_DMA_MINALIGN))
117 /* Do not use sizeof(ed / td) as our ed / td structs contain extra members */
118 #define flush_dcache_ed(addr) flush_dcache_buffer(addr, 16)
119 #define flush_dcache_td(addr) flush_dcache_buffer(addr, 16)
120 #define flush_dcache_iso_td(addr) flush_dcache_buffer(addr, 32)
121 #define flush_dcache_hcca(addr) flush_dcache_buffer(addr, 256)
122 #define invalidate_dcache_ed(addr) invalidate_dcache_buffer(addr, 16)
123 #define invalidate_dcache_td(addr) invalidate_dcache_buffer(addr, 16)
124 #define invalidate_dcache_iso_td(addr) invalidate_dcache_buffer(addr, 32)
125 #define invalidate_dcache_hcca(addr) invalidate_dcache_buffer(addr, 256)
129 * The various ohci_mdelay(1) calls in the code seem unnecessary. We keep
130 * them around when building for older boards not yet converted to the dm
131 * just in case (to avoid regressions), for dm this turns them into nops.
133 #define ohci_mdelay(x)
135 #define ohci_mdelay(x) mdelay(x)
138 #ifndef CONFIG_DM_USB
141 /* this must be aligned to a 256 byte boundary */
142 struct ohci_hcca ghcca
[1];
145 /* mapping of the OHCI CC status to error codes */
146 static int cc_to_error
[16] = {
148 /* CRC Error */ USB_ST_CRC_ERR
,
149 /* Bit Stuff */ USB_ST_BIT_ERR
,
150 /* Data Togg */ USB_ST_CRC_ERR
,
151 /* Stall */ USB_ST_STALLED
,
153 /* PIDCheck */ USB_ST_BIT_ERR
,
154 /* UnExpPID */ USB_ST_BIT_ERR
,
155 /* DataOver */ USB_ST_BUF_ERR
,
156 /* DataUnder */ USB_ST_BUF_ERR
,
159 /* BufferOver */ USB_ST_BUF_ERR
,
160 /* BuffUnder */ USB_ST_BUF_ERR
,
165 static const char *cc_to_string
[16] = {
167 "CRC: Last data packet from endpoint contained a CRC error.",
168 "BITSTUFFING: Last data packet from endpoint contained a bit " \
169 "stuffing violation",
170 "DATATOGGLEMISMATCH: Last packet from endpoint had data toggle PID\n" \
171 "that did not match the expected value.",
172 "STALL: TD was moved to the Done Queue because the endpoint returned" \
174 "DEVICENOTRESPONDING: Device did not respond to token (IN) or did\n" \
175 "not provide a handshake (OUT)",
176 "PIDCHECKFAILURE: Check bits on PID from endpoint failed on data PID\n"\
177 "(IN) or handshake (OUT)",
178 "UNEXPECTEDPID: Receive PID was not valid when encountered or PID\n" \
179 "value is not defined.",
180 "DATAOVERRUN: The amount of data returned by the endpoint exceeded\n" \
181 "either the size of the maximum data packet allowed\n" \
182 "from the endpoint (found in MaximumPacketSize field\n" \
183 "of ED) or the remaining buffer size.",
184 "DATAUNDERRUN: The endpoint returned less than MaximumPacketSize\n" \
185 "and that amount was not sufficient to fill the\n" \
189 "BUFFEROVERRUN: During an IN, HC received data from endpoint faster\n" \
190 "than it could be written to system memory",
191 "BUFFERUNDERRUN: During an OUT, HC could not retrieve data from\n" \
192 "system memory fast enough to keep up with data USB " \
194 "NOT ACCESSED: This code is set by software before the TD is placed" \
195 "on a list to be processed by the HC.(1)",
196 "NOT ACCESSED: This code is set by software before the TD is placed" \
197 "on a list to be processed by the HC.(2)",
200 static inline u32
roothub_a(struct ohci
*hc
)
201 { return ohci_readl(&hc
->regs
->roothub
.a
); }
202 static inline u32
roothub_b(struct ohci
*hc
)
203 { return ohci_readl(&hc
->regs
->roothub
.b
); }
204 static inline u32
roothub_status(struct ohci
*hc
)
205 { return ohci_readl(&hc
->regs
->roothub
.status
); }
206 static inline u32
roothub_portstatus(struct ohci
*hc
, int i
)
207 { return ohci_readl(&hc
->regs
->roothub
.portstatus
[i
]); }
209 /* forward declaration */
210 static int hc_interrupt(ohci_t
*ohci
);
211 static void td_submit_job(ohci_t
*ohci
, struct usb_device
*dev
,
212 unsigned long pipe
, void *buffer
, int transfer_len
,
213 struct devrequest
*setup
, urb_priv_t
*urb
,
215 static int ep_link(ohci_t
* ohci
, ed_t
* ed
);
216 static int ep_unlink(ohci_t
* ohci
, ed_t
* ed
);
217 static ed_t
*ep_add_ed(ohci_dev_t
*ohci_dev
, struct usb_device
*usb_dev
,
218 unsigned long pipe
, int interval
, int load
);
220 /*-------------------------------------------------------------------------*/
223 static struct td
*td_alloc(ohci_dev_t
*ohci_dev
, struct usb_device
*usb_dev
)
229 for (i
= 0; i
< NUM_TD
; i
++)
231 if (ohci_dev
->tds
[i
].usb_dev
== NULL
)
233 td
= &ohci_dev
->tds
[i
];
234 td
->usb_dev
= usb_dev
;
242 static inline void ed_free(struct ed
*ed
)
247 /*-------------------------------------------------------------------------*
248 * URB support functions
249 *-------------------------------------------------------------------------*/
251 /* free HCD-private data associated with this URB */
253 static void urb_free_priv(urb_priv_t
*urb
)
259 last
= urb
->length
- 1;
261 for (i
= 0; i
<= last
; i
++) {
272 /*-------------------------------------------------------------------------*/
275 static int sohci_get_current_frame_number(ohci_t
*ohci
);
277 /* debug| print the main components of an URB
278 * small: 0) header + data packets 1) just header */
280 static void pkt_print(ohci_t
*ohci
, urb_priv_t
*purb
, struct usb_device
*dev
,
281 unsigned long pipe
, void *buffer
, int transfer_len
,
282 struct devrequest
*setup
, char *str
, int small
)
284 dbg("%s URB:[%4x] dev:%2lu,ep:%2lu-%c,type:%s,len:%d/%d stat:%#lx",
286 sohci_get_current_frame_number(ohci
),
287 usb_pipedevice(pipe
),
288 usb_pipeendpoint(pipe
),
289 usb_pipeout(pipe
)? 'O': 'I',
290 usb_pipetype(pipe
) < 2 ? \
291 (usb_pipeint(pipe
)? "INTR": "ISOC"): \
292 (usb_pipecontrol(pipe
)? "CTRL": "BULK"),
293 (purb
? purb
->actual_length
: 0),
294 transfer_len
, dev
->status
);
295 #ifdef OHCI_VERBOSE_DEBUG
299 if (usb_pipecontrol(pipe
)) {
300 printf(__FILE__
": cmd(8):");
301 for (i
= 0; i
< 8 ; i
++)
302 printf(" %02x", ((__u8
*) setup
) [i
]);
305 if (transfer_len
> 0 && buffer
) {
306 printf(__FILE__
": data(%d/%d):",
307 (purb
? purb
->actual_length
: 0),
309 len
= usb_pipeout(pipe
)? transfer_len
:
310 (purb
? purb
->actual_length
: 0);
311 for (i
= 0; i
< 16 && i
< len
; i
++)
312 printf(" %02x", ((__u8
*) buffer
) [i
]);
313 printf("%s\n", i
< len
? "...": "");
319 /* just for debugging; prints non-empty branches of the int ed tree
320 * inclusive iso eds */
321 void ep_print_int_eds(ohci_t
*ohci
, char *str
)
325 for (i
= 0; i
< 32; i
++) {
327 ed_p
= &(ohci
->hcca
->int_table
[i
]);
330 invalidate_dcache_ed(ed_p
);
331 printf(__FILE__
": %s branch int %2d(%2x):", str
, i
, i
);
332 while (*ed_p
!= 0 && j
--) {
333 ed_t
*ed
= (ed_t
*)m32_swap(ed_p
);
334 invalidate_dcache_ed(ed
);
335 printf(" ed: %4x;", ed
->hwINFO
);
336 ed_p
= &ed
->hwNextED
;
342 static void ohci_dump_intr_mask(char *label
, __u32 mask
)
344 dbg("%s: 0x%08x%s%s%s%s%s%s%s%s%s",
347 (mask
& OHCI_INTR_MIE
) ? " MIE" : "",
348 (mask
& OHCI_INTR_OC
) ? " OC" : "",
349 (mask
& OHCI_INTR_RHSC
) ? " RHSC" : "",
350 (mask
& OHCI_INTR_FNO
) ? " FNO" : "",
351 (mask
& OHCI_INTR_UE
) ? " UE" : "",
352 (mask
& OHCI_INTR_RD
) ? " RD" : "",
353 (mask
& OHCI_INTR_SF
) ? " SF" : "",
354 (mask
& OHCI_INTR_WDH
) ? " WDH" : "",
355 (mask
& OHCI_INTR_SO
) ? " SO" : ""
359 static void maybe_print_eds(char *label
, __u32 value
)
361 ed_t
*edp
= (ed_t
*)value
;
364 dbg("%s %08x", label
, value
);
365 invalidate_dcache_ed(edp
);
366 dbg("%08x", edp
->hwINFO
);
367 dbg("%08x", edp
->hwTailP
);
368 dbg("%08x", edp
->hwHeadP
);
369 dbg("%08x", edp
->hwNextED
);
373 static char *hcfs2string(int state
)
376 case OHCI_USB_RESET
: return "reset";
377 case OHCI_USB_RESUME
: return "resume";
378 case OHCI_USB_OPER
: return "operational";
379 case OHCI_USB_SUSPEND
: return "suspend";
384 /* dump control and status registers */
385 static void ohci_dump_status(ohci_t
*controller
)
387 struct ohci_regs
*regs
= controller
->regs
;
390 temp
= ohci_readl(®s
->revision
) & 0xff;
392 dbg("spec %d.%d", (temp
>> 4), (temp
& 0x0f));
394 temp
= ohci_readl(®s
->control
);
395 dbg("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp
,
396 (temp
& OHCI_CTRL_RWE
) ? " RWE" : "",
397 (temp
& OHCI_CTRL_RWC
) ? " RWC" : "",
398 (temp
& OHCI_CTRL_IR
) ? " IR" : "",
399 hcfs2string(temp
& OHCI_CTRL_HCFS
),
400 (temp
& OHCI_CTRL_BLE
) ? " BLE" : "",
401 (temp
& OHCI_CTRL_CLE
) ? " CLE" : "",
402 (temp
& OHCI_CTRL_IE
) ? " IE" : "",
403 (temp
& OHCI_CTRL_PLE
) ? " PLE" : "",
404 temp
& OHCI_CTRL_CBSR
407 temp
= ohci_readl(®s
->cmdstatus
);
408 dbg("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp
,
409 (temp
& OHCI_SOC
) >> 16,
410 (temp
& OHCI_OCR
) ? " OCR" : "",
411 (temp
& OHCI_BLF
) ? " BLF" : "",
412 (temp
& OHCI_CLF
) ? " CLF" : "",
413 (temp
& OHCI_HCR
) ? " HCR" : ""
416 ohci_dump_intr_mask("intrstatus", ohci_readl(®s
->intrstatus
));
417 ohci_dump_intr_mask("intrenable", ohci_readl(®s
->intrenable
));
419 maybe_print_eds("ed_periodcurrent",
420 ohci_readl(®s
->ed_periodcurrent
));
422 maybe_print_eds("ed_controlhead", ohci_readl(®s
->ed_controlhead
));
423 maybe_print_eds("ed_controlcurrent",
424 ohci_readl(®s
->ed_controlcurrent
));
426 maybe_print_eds("ed_bulkhead", ohci_readl(®s
->ed_bulkhead
));
427 maybe_print_eds("ed_bulkcurrent", ohci_readl(®s
->ed_bulkcurrent
));
429 maybe_print_eds("donehead", ohci_readl(®s
->donehead
));
432 static void ohci_dump_roothub(ohci_t
*controller
, int verbose
)
436 temp
= roothub_a(controller
);
437 ndp
= (temp
& RH_A_NDP
);
438 #ifdef CONFIG_AT91C_PQFP_UHPBUG
439 ndp
= (ndp
== 2) ? 1:0;
442 dbg("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp
,
443 ((temp
& RH_A_POTPGT
) >> 24) & 0xff,
444 (temp
& RH_A_NOCP
) ? " NOCP" : "",
445 (temp
& RH_A_OCPM
) ? " OCPM" : "",
446 (temp
& RH_A_DT
) ? " DT" : "",
447 (temp
& RH_A_NPS
) ? " NPS" : "",
448 (temp
& RH_A_PSM
) ? " PSM" : "",
451 temp
= roothub_b(controller
);
452 dbg("roothub.b: %08x PPCM=%04x DR=%04x",
454 (temp
& RH_B_PPCM
) >> 16,
457 temp
= roothub_status(controller
);
458 dbg("roothub.status: %08x%s%s%s%s%s%s",
460 (temp
& RH_HS_CRWE
) ? " CRWE" : "",
461 (temp
& RH_HS_OCIC
) ? " OCIC" : "",
462 (temp
& RH_HS_LPSC
) ? " LPSC" : "",
463 (temp
& RH_HS_DRWE
) ? " DRWE" : "",
464 (temp
& RH_HS_OCI
) ? " OCI" : "",
465 (temp
& RH_HS_LPS
) ? " LPS" : ""
469 for (i
= 0; i
< ndp
; i
++) {
470 temp
= roothub_portstatus(controller
, i
);
471 dbg("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s",
474 (temp
& RH_PS_PRSC
) ? " PRSC" : "",
475 (temp
& RH_PS_OCIC
) ? " OCIC" : "",
476 (temp
& RH_PS_PSSC
) ? " PSSC" : "",
477 (temp
& RH_PS_PESC
) ? " PESC" : "",
478 (temp
& RH_PS_CSC
) ? " CSC" : "",
480 (temp
& RH_PS_LSDA
) ? " LSDA" : "",
481 (temp
& RH_PS_PPS
) ? " PPS" : "",
482 (temp
& RH_PS_PRS
) ? " PRS" : "",
483 (temp
& RH_PS_POCI
) ? " POCI" : "",
484 (temp
& RH_PS_PSS
) ? " PSS" : "",
486 (temp
& RH_PS_PES
) ? " PES" : "",
487 (temp
& RH_PS_CCS
) ? " CCS" : ""
492 static void ohci_dump(ohci_t
*controller
, int verbose
)
494 dbg("OHCI controller usb-%s state", controller
->slot_name
);
496 /* dumps some of the state we know about */
497 ohci_dump_status(controller
);
499 ep_print_int_eds(controller
, "hcca");
500 invalidate_dcache_hcca(controller
->hcca
);
501 dbg("hcca frame #%04x", controller
->hcca
->frame_no
);
502 ohci_dump_roothub(controller
, 1);
506 /*-------------------------------------------------------------------------*
507 * Interface functions (URB)
508 *-------------------------------------------------------------------------*/
510 /* get a transfer request */
512 int sohci_submit_job(ohci_t
*ohci
, ohci_dev_t
*ohci_dev
, urb_priv_t
*urb
,
513 struct devrequest
*setup
)
516 urb_priv_t
*purb_priv
= urb
;
518 struct usb_device
*dev
= urb
->dev
;
519 unsigned long pipe
= urb
->pipe
;
520 void *buffer
= urb
->transfer_buffer
;
521 int transfer_len
= urb
->transfer_buffer_length
;
522 int interval
= urb
->interval
;
524 /* when controller's hung, permit only roothub cleanup attempts
525 * such as powering down ports */
526 if (ohci
->disabled
) {
527 err("sohci_submit_job: EPIPE");
531 /* we're about to begin a new transaction here so mark the
535 /* every endpoint has a ed, locate and fill it */
536 ed
= ep_add_ed(ohci_dev
, dev
, pipe
, interval
, 1);
538 err("sohci_submit_job: ENOMEM");
542 /* for the private part of the URB we need the number of TDs (size) */
543 switch (usb_pipetype(pipe
)) {
544 case PIPE_BULK
: /* one TD for every 4096 Byte */
545 size
= (transfer_len
- 1) / 4096 + 1;
547 case PIPE_CONTROL
:/* 1 TD for setup, 1 for ACK and 1 for every 4096 B */
548 size
= (transfer_len
== 0)? 2:
549 (transfer_len
- 1) / 4096 + 3;
551 case PIPE_INTERRUPT
: /* 1 TD */
558 if (size
>= (N_URB_TD
- 1)) {
559 err("need %d TDs, only have %d", size
, N_URB_TD
);
562 purb_priv
->pipe
= pipe
;
564 /* fill the private part of the URB */
565 purb_priv
->length
= size
;
567 purb_priv
->actual_length
= 0;
569 /* allocate the TDs */
570 /* note that td[0] was allocated in ep_add_ed */
571 for (i
= 0; i
< size
; i
++) {
572 purb_priv
->td
[i
] = td_alloc(ohci_dev
, dev
);
573 if (!purb_priv
->td
[i
]) {
574 purb_priv
->length
= i
;
575 urb_free_priv(purb_priv
);
576 err("sohci_submit_job: ENOMEM");
581 if (ed
->state
== ED_NEW
|| (ed
->state
& ED_DEL
)) {
582 urb_free_priv(purb_priv
);
583 err("sohci_submit_job: EINVAL");
587 /* link the ed into a chain if is not already */
588 if (ed
->state
!= ED_OPER
)
591 /* fill the TDs and link it to the ed */
592 td_submit_job(ohci
, dev
, pipe
, buffer
, transfer_len
,
593 setup
, purb_priv
, interval
);
598 /*-------------------------------------------------------------------------*/
601 /* tell us the current USB frame number */
602 static int sohci_get_current_frame_number(ohci_t
*ohci
)
604 invalidate_dcache_hcca(ohci
->hcca
);
605 return m16_swap(ohci
->hcca
->frame_no
);
609 /*-------------------------------------------------------------------------*
610 * ED handling functions
611 *-------------------------------------------------------------------------*/
613 /* search for the right branch to insert an interrupt ed into the int tree
614 * do some load ballancing;
615 * returns the branch and
616 * sets the interval to interval = 2^integer (ld (interval)) */
618 static int ep_int_ballance(ohci_t
*ohci
, int interval
, int load
)
622 /* search for the least loaded interrupt endpoint
623 * branch of all 32 branches
625 for (i
= 0; i
< 32; i
++)
626 if (ohci
->ohci_int_load
[branch
] > ohci
->ohci_int_load
[i
])
629 branch
= branch
% interval
;
630 for (i
= branch
; i
< 32; i
+= interval
)
631 ohci
->ohci_int_load
[i
] += load
;
636 /*-------------------------------------------------------------------------*/
638 /* 2^int( ld (inter)) */
640 static int ep_2_n_interval(int inter
)
643 for (i
= 0; ((inter
>> i
) > 1) && (i
< 5); i
++);
647 /*-------------------------------------------------------------------------*/
649 /* the int tree is a binary tree
650 * in order to process it sequentially the indexes of the branches have to
651 * be mapped the mapping reverses the bits of a word of num_bits length */
652 static int ep_rev(int num_bits
, int word
)
656 for (i
= 0; i
< num_bits
; i
++)
657 wout
|= (((word
>> i
) & 1) << (num_bits
- i
- 1));
661 /*-------------------------------------------------------------------------*
662 * ED handling functions
663 *-------------------------------------------------------------------------*/
665 /* link an ed into one of the HC chains */
667 static int ep_link(ohci_t
*ohci
, ed_t
*edi
)
669 volatile ed_t
*ed
= edi
;
678 ed
->int_interval
= 0;
684 if (ohci
->ed_controltail
== NULL
)
685 ohci_writel(ed
, &ohci
->regs
->ed_controlhead
);
687 ohci
->ed_controltail
->hwNextED
=
688 m32_swap((unsigned long)ed
);
690 ed
->ed_prev
= ohci
->ed_controltail
;
691 if (!ohci
->ed_controltail
&& !ohci
->ed_rm_list
[0] &&
692 !ohci
->ed_rm_list
[1] && !ohci
->sleeping
) {
693 ohci
->hc_control
|= OHCI_CTRL_CLE
;
694 ohci_writel(ohci
->hc_control
, &ohci
->regs
->control
);
696 ohci
->ed_controltail
= edi
;
702 if (ohci
->ed_bulktail
== NULL
)
703 ohci_writel(ed
, &ohci
->regs
->ed_bulkhead
);
705 ohci
->ed_bulktail
->hwNextED
=
706 m32_swap((unsigned long)ed
);
708 ed
->ed_prev
= ohci
->ed_bulktail
;
709 if (!ohci
->ed_bulktail
&& !ohci
->ed_rm_list
[0] &&
710 !ohci
->ed_rm_list
[1] && !ohci
->sleeping
) {
711 ohci
->hc_control
|= OHCI_CTRL_BLE
;
712 ohci_writel(ohci
->hc_control
, &ohci
->regs
->control
);
714 ohci
->ed_bulktail
= edi
;
719 interval
= ep_2_n_interval(ed
->int_period
);
720 ed
->int_interval
= interval
;
721 int_branch
= ep_int_ballance(ohci
, interval
, load
);
722 ed
->int_branch
= int_branch
;
724 for (i
= 0; i
< ep_rev(6, interval
); i
+= inter
) {
726 for (ed_p
= &(ohci
->hcca
->int_table
[\
727 ep_rev(5, i
) + int_branch
]);
729 (((ed_t
*)ed_p
)->int_interval
>= interval
);
730 ed_p
= &(((ed_t
*)ed_p
)->hwNextED
))
732 ((ed_t
*)ed_p
)->int_interval
);
733 ed
->hwNextED
= *ed_p
;
735 *ed_p
= m32_swap((unsigned long)ed
);
736 flush_dcache_hcca(ohci
->hcca
);
743 /*-------------------------------------------------------------------------*/
745 /* scan the periodic table to find and unlink this ED */
746 static void periodic_unlink(struct ohci
*ohci
, volatile struct ed
*ed
,
747 unsigned index
, unsigned period
)
749 __maybe_unused
unsigned long aligned_ed_p
;
751 for (; index
< NUM_INTS
; index
+= period
) {
752 __u32
*ed_p
= &ohci
->hcca
->int_table
[index
];
754 /* ED might have been unlinked through another path */
757 m32_swap((unsigned long)ed_p
)) == ed
) {
758 *ed_p
= ed
->hwNextED
;
759 aligned_ed_p
= (unsigned long)ed_p
;
760 aligned_ed_p
&= ~(ARCH_DMA_MINALIGN
- 1);
761 flush_dcache_range(aligned_ed_p
,
762 aligned_ed_p
+ ARCH_DMA_MINALIGN
);
765 ed_p
= &(((struct ed
*)
766 m32_swap((unsigned long)ed_p
))->hwNextED
);
771 /* unlink an ed from one of the HC chains.
772 * just the link to the ed is unlinked.
773 * the link from the ed still points to another operational ed or 0
774 * so the HC can eventually finish the processing of the unlinked ed */
776 static int ep_unlink(ohci_t
*ohci
, ed_t
*edi
)
778 volatile ed_t
*ed
= edi
;
781 ed
->hwINFO
|= m32_swap(OHCI_ED_SKIP
);
786 if (ed
->ed_prev
== NULL
) {
788 ohci
->hc_control
&= ~OHCI_CTRL_CLE
;
789 ohci_writel(ohci
->hc_control
,
790 &ohci
->regs
->control
);
792 ohci_writel(m32_swap(*((__u32
*)&ed
->hwNextED
)),
793 &ohci
->regs
->ed_controlhead
);
795 ed
->ed_prev
->hwNextED
= ed
->hwNextED
;
796 flush_dcache_ed(ed
->ed_prev
);
798 if (ohci
->ed_controltail
== ed
) {
799 ohci
->ed_controltail
= ed
->ed_prev
;
802 *((__u32
*)&ed
->hwNextED
)))->ed_prev
= ed
->ed_prev
;
807 if (ed
->ed_prev
== NULL
) {
809 ohci
->hc_control
&= ~OHCI_CTRL_BLE
;
810 ohci_writel(ohci
->hc_control
,
811 &ohci
->regs
->control
);
813 ohci_writel(m32_swap(*((__u32
*)&ed
->hwNextED
)),
814 &ohci
->regs
->ed_bulkhead
);
816 ed
->ed_prev
->hwNextED
= ed
->hwNextED
;
817 flush_dcache_ed(ed
->ed_prev
);
819 if (ohci
->ed_bulktail
== ed
) {
820 ohci
->ed_bulktail
= ed
->ed_prev
;
823 *((__u32
*)&ed
->hwNextED
)))->ed_prev
= ed
->ed_prev
;
828 periodic_unlink(ohci
, ed
, 0, 1);
829 for (i
= ed
->int_branch
; i
< 32; i
+= ed
->int_interval
)
830 ohci
->ohci_int_load
[i
] -= ed
->int_load
;
833 ed
->state
= ED_UNLINK
;
837 /*-------------------------------------------------------------------------*/
839 /* add/reinit an endpoint; this should be done once at the
840 * usb_set_configuration command, but the USB stack is a little bit
841 * stateless so we do it at every transaction if the state of the ed
842 * is ED_NEW then a dummy td is added and the state is changed to
843 * ED_UNLINK in all other cases the state is left unchanged the ed
844 * info fields are setted anyway even though most of them should not
847 static ed_t
*ep_add_ed(ohci_dev_t
*ohci_dev
, struct usb_device
*usb_dev
,
848 unsigned long pipe
, int interval
, int load
)
854 ed
= ed_ret
= &ohci_dev
->ed
[(usb_pipeendpoint(pipe
) << 1) |
855 (usb_pipecontrol(pipe
)? 0: usb_pipeout(pipe
))];
857 if ((ed
->state
& ED_DEL
) || (ed
->state
& ED_URB_DEL
)) {
858 err("ep_add_ed: pending delete");
859 /* pending delete request */
863 if (ed
->state
== ED_NEW
) {
864 /* dummy td; end of td list for ed */
865 td
= td_alloc(ohci_dev
, usb_dev
);
866 ed
->hwTailP
= m32_swap((unsigned long)td
);
867 ed
->hwHeadP
= ed
->hwTailP
;
868 ed
->state
= ED_UNLINK
;
869 ed
->type
= usb_pipetype(pipe
);
873 ed
->hwINFO
= m32_swap(usb_pipedevice(pipe
)
874 | usb_pipeendpoint(pipe
) << 7
875 | (usb_pipeisoc(pipe
)? 0x8000: 0)
876 | (usb_pipecontrol(pipe
)? 0: \
877 (usb_pipeout(pipe
)? 0x800: 0x1000))
878 | (usb_dev
->speed
== USB_SPEED_LOW
) << 13
879 | usb_maxpacket(usb_dev
, pipe
) << 16);
881 if (ed
->type
== PIPE_INTERRUPT
&& ed
->state
== ED_UNLINK
) {
882 ed
->int_period
= interval
;
891 /*-------------------------------------------------------------------------*
892 * TD handling functions
893 *-------------------------------------------------------------------------*/
895 /* enqueue next TD for this URB (OHCI spec 5.2.8.2) */
897 static void td_fill(ohci_t
*ohci
, unsigned int info
,
899 struct usb_device
*dev
, int index
, urb_priv_t
*urb_priv
)
901 volatile td_t
*td
, *td_pt
;
902 #ifdef OHCI_FILL_TRACE
906 if (index
> urb_priv
->length
) {
907 err("index > length");
910 /* use this td as the next dummy */
911 td_pt
= urb_priv
->td
[index
];
913 flush_dcache_td(td_pt
);
915 /* fill the old dummy TD */
916 td
= urb_priv
->td
[index
] =
917 (td_t
*)(m32_swap(urb_priv
->ed
->hwTailP
) & ~0xf);
919 td
->ed
= urb_priv
->ed
;
920 td
->next_dl_td
= NULL
;
922 td
->data
= (__u32
)data
;
923 #ifdef OHCI_FILL_TRACE
924 if (usb_pipebulk(urb_priv
->pipe
) && usb_pipeout(urb_priv
->pipe
)) {
925 for (i
= 0; i
< len
; i
++)
926 printf("td->data[%d] %#2x ", i
, ((unsigned char *)td
->data
)[i
]);
933 td
->hwINFO
= m32_swap(info
);
934 td
->hwCBP
= m32_swap((unsigned long)data
);
936 td
->hwBE
= m32_swap((unsigned long)(data
+ len
- 1));
940 td
->hwNextTD
= m32_swap((unsigned long)td_pt
);
943 /* append to queue */
944 td
->ed
->hwTailP
= td
->hwNextTD
;
945 flush_dcache_ed(td
->ed
);
948 /*-------------------------------------------------------------------------*/
950 /* prepare all TDs of a transfer */
952 static void td_submit_job(ohci_t
*ohci
, struct usb_device
*dev
,
953 unsigned long pipe
, void *buffer
, int transfer_len
,
954 struct devrequest
*setup
, urb_priv_t
*urb
,
957 int data_len
= transfer_len
;
961 unsigned int toggle
= 0;
963 flush_dcache_buffer(buffer
, data_len
);
965 /* OHCI handles the DATA-toggles itself, we just use the USB-toggle
966 * bits for reseting */
967 if (usb_gettoggle(dev
, usb_pipeendpoint(pipe
), usb_pipeout(pipe
))) {
968 toggle
= TD_T_TOGGLE
;
971 usb_settoggle(dev
, usb_pipeendpoint(pipe
),
972 usb_pipeout(pipe
), 1);
980 switch (usb_pipetype(pipe
)) {
982 info
= usb_pipeout(pipe
)?
983 TD_CC
| TD_DP_OUT
: TD_CC
| TD_DP_IN
;
984 while (data_len
> 4096) {
985 td_fill(ohci
, info
| (cnt
? TD_T_TOGGLE
:toggle
),
986 data
, 4096, dev
, cnt
, urb
);
987 data
+= 4096; data_len
-= 4096; cnt
++;
989 info
= usb_pipeout(pipe
)?
990 TD_CC
| TD_DP_OUT
: TD_CC
| TD_R
| TD_DP_IN
;
991 td_fill(ohci
, info
| (cnt
? TD_T_TOGGLE
:toggle
), data
,
992 data_len
, dev
, cnt
, urb
);
995 if (!ohci
->sleeping
) {
996 /* start bulk list */
997 ohci_writel(OHCI_BLF
, &ohci
->regs
->cmdstatus
);
1003 info
= TD_CC
| TD_DP_SETUP
| TD_T_DATA0
;
1004 flush_dcache_buffer(setup
, 8);
1005 td_fill(ohci
, info
, setup
, 8, dev
, cnt
++, urb
);
1007 /* Optional Data phase */
1009 info
= usb_pipeout(pipe
)?
1010 TD_CC
| TD_R
| TD_DP_OUT
| TD_T_DATA1
:
1011 TD_CC
| TD_R
| TD_DP_IN
| TD_T_DATA1
;
1012 /* NOTE: mishandles transfers >8K, some >4K */
1013 td_fill(ohci
, info
, data
, data_len
, dev
, cnt
++, urb
);
1017 info
= (usb_pipeout(pipe
) || data_len
== 0) ?
1018 TD_CC
| TD_DP_IN
| TD_T_DATA1
:
1019 TD_CC
| TD_DP_OUT
| TD_T_DATA1
;
1020 td_fill(ohci
, info
, data
, 0, dev
, cnt
++, urb
);
1022 if (!ohci
->sleeping
) {
1023 /* start Control list */
1024 ohci_writel(OHCI_CLF
, &ohci
->regs
->cmdstatus
);
1028 case PIPE_INTERRUPT
:
1029 info
= usb_pipeout(urb
->pipe
)?
1030 TD_CC
| TD_DP_OUT
| toggle
:
1031 TD_CC
| TD_R
| TD_DP_IN
| toggle
;
1032 td_fill(ohci
, info
, data
, data_len
, dev
, cnt
++, urb
);
1035 if (urb
->length
!= cnt
)
1036 dbg("TD LENGTH %d != CNT %d", urb
->length
, cnt
);
1039 /*-------------------------------------------------------------------------*
1040 * Done List handling functions
1041 *-------------------------------------------------------------------------*/
1043 /* calculate the transfer length and update the urb */
1045 static void dl_transfer_length(td_t
*td
)
1048 urb_priv_t
*lurb_priv
= td
->ed
->purb
;
1050 tdBE
= m32_swap(td
->hwBE
);
1051 tdCBP
= m32_swap(td
->hwCBP
);
1053 if (!(usb_pipecontrol(lurb_priv
->pipe
) &&
1054 ((td
->index
== 0) || (td
->index
== lurb_priv
->length
- 1)))) {
1057 lurb_priv
->actual_length
+= tdBE
- td
->data
+ 1;
1059 lurb_priv
->actual_length
+= tdCBP
- td
->data
;
1064 /*-------------------------------------------------------------------------*/
1065 static void check_status(td_t
*td_list
)
1067 urb_priv_t
*lurb_priv
= td_list
->ed
->purb
;
1068 int urb_len
= lurb_priv
->length
;
1069 __u32
*phwHeadP
= &td_list
->ed
->hwHeadP
;
1072 cc
= TD_CC_GET(m32_swap(td_list
->hwINFO
));
1074 err(" USB-error: %s (%x)", cc_to_string
[cc
], cc
);
1076 invalidate_dcache_ed(td_list
->ed
);
1077 if (*phwHeadP
& m32_swap(0x1)) {
1079 ((td_list
->index
+ 1) < urb_len
)) {
1081 (lurb_priv
->td
[urb_len
- 1]->hwNextTD
&\
1082 m32_swap(0xfffffff0)) |
1083 (*phwHeadP
& m32_swap(0x2));
1085 lurb_priv
->td_cnt
+= urb_len
-
1088 *phwHeadP
&= m32_swap(0xfffffff2);
1089 flush_dcache_ed(td_list
->ed
);
1091 #ifdef CONFIG_MPC5200
1092 td_list
->hwNextTD
= 0;
1093 flush_dcache_td(td_list
);
1098 /* replies to the request have to be on a FIFO basis so
1099 * we reverse the reversed done-list */
1100 static td_t
*dl_reverse_done_list(ohci_t
*ohci
)
1103 td_t
*td_rev
= NULL
;
1104 td_t
*td_list
= NULL
;
1106 invalidate_dcache_hcca(ohci
->hcca
);
1107 td_list_hc
= m32_swap(ohci
->hcca
->done_head
) & 0xfffffff0;
1108 ohci
->hcca
->done_head
= 0;
1109 flush_dcache_hcca(ohci
->hcca
);
1111 while (td_list_hc
) {
1112 td_list
= (td_t
*)td_list_hc
;
1113 invalidate_dcache_td(td_list
);
1114 check_status(td_list
);
1115 td_list
->next_dl_td
= td_rev
;
1117 td_list_hc
= m32_swap(td_list
->hwNextTD
) & 0xfffffff0;
1122 /*-------------------------------------------------------------------------*/
1123 /*-------------------------------------------------------------------------*/
1125 static void finish_urb(ohci_t
*ohci
, urb_priv_t
*urb
, int status
)
1127 if ((status
& (ED_OPER
| ED_UNLINK
)) && (urb
->state
!= URB_DEL
))
1130 dbg("finish_urb: strange.., ED state %x, \n", status
);
1134 * Used to take back a TD from the host controller. This would normally be
1135 * called from within dl_done_list, however it may be called directly if the
1136 * HC no longer sees the TD and it has not appeared on the donelist (after
1137 * two frames). This bug has been observed on ZF Micro systems.
1139 static int takeback_td(ohci_t
*ohci
, td_t
*td_list
)
1145 urb_priv_t
*lurb_priv
;
1146 __u32 tdINFO
, edHeadP
, edTailP
;
1148 invalidate_dcache_td(td_list
);
1149 tdINFO
= m32_swap(td_list
->hwINFO
);
1152 lurb_priv
= ed
->purb
;
1154 dl_transfer_length(td_list
);
1156 lurb_priv
->td_cnt
++;
1158 /* error code of transfer */
1159 cc
= TD_CC_GET(tdINFO
);
1161 err("USB-error: %s (%x)", cc_to_string
[cc
], cc
);
1162 stat
= cc_to_error
[cc
];
1165 /* see if this done list makes for all TD's of current URB,
1166 * and mark the URB finished if so */
1167 if (lurb_priv
->td_cnt
== lurb_priv
->length
)
1168 finish_urb(ohci
, lurb_priv
, ed
->state
);
1170 dbg("dl_done_list: processing TD %x, len %x\n",
1171 lurb_priv
->td_cnt
, lurb_priv
->length
);
1173 if (ed
->state
!= ED_NEW
&& (!usb_pipeint(lurb_priv
->pipe
))) {
1174 invalidate_dcache_ed(ed
);
1175 edHeadP
= m32_swap(ed
->hwHeadP
) & 0xfffffff0;
1176 edTailP
= m32_swap(ed
->hwTailP
);
1178 /* unlink eds if they are not busy */
1179 if ((edHeadP
== edTailP
) && (ed
->state
== ED_OPER
))
1180 ep_unlink(ohci
, ed
);
1185 static int dl_done_list(ohci_t
*ohci
)
1188 td_t
*td_list
= dl_reverse_done_list(ohci
);
1191 td_t
*td_next
= td_list
->next_dl_td
;
1192 stat
= takeback_td(ohci
, td_list
);
1198 /*-------------------------------------------------------------------------*
1200 *-------------------------------------------------------------------------*/
1202 #include <usbroothubdes.h>
1204 /* Hub class-specific descriptor is constructed dynamically */
1206 /*-------------------------------------------------------------------------*/
1208 #define OK(x) len = (x); break
1210 #define WR_RH_STAT(x) {info("WR:status %#8x", (x)); ohci_writel((x), \
1211 &ohci->regs->roothub.status); }
1212 #define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, \
1213 (x)); ohci_writel((x), &ohci->regs->roothub.portstatus[wIndex-1]); }
1215 #define WR_RH_STAT(x) ohci_writel((x), &ohci->regs->roothub.status)
1216 #define WR_RH_PORTSTAT(x) ohci_writel((x), \
1217 &ohci->regs->roothub.portstatus[wIndex-1])
1219 #define RD_RH_STAT roothub_status(ohci)
1220 #define RD_RH_PORTSTAT roothub_portstatus(ohci, wIndex-1)
1222 /* request to virtual root hub */
1224 int rh_check_port_status(ohci_t
*controller
)
1230 temp
= roothub_a(controller
);
1231 ndp
= (temp
& RH_A_NDP
);
1232 #ifdef CONFIG_AT91C_PQFP_UHPBUG
1233 ndp
= (ndp
== 2) ? 1:0;
1235 for (i
= 0; i
< ndp
; i
++) {
1236 temp
= roothub_portstatus(controller
, i
);
1237 /* check for a device disconnect */
1238 if (((temp
& (RH_PS_PESC
| RH_PS_CSC
)) ==
1239 (RH_PS_PESC
| RH_PS_CSC
)) &&
1240 ((temp
& RH_PS_CCS
) == 0)) {
1248 static int ohci_submit_rh_msg(ohci_t
*ohci
, struct usb_device
*dev
,
1249 unsigned long pipe
, void *buffer
, int transfer_len
,
1250 struct devrequest
*cmd
)
1252 void *data
= buffer
;
1253 int leni
= transfer_len
;
1260 ALLOC_ALIGN_BUFFER(__u8
, databuf
, 16, sizeof(u32
));
1263 pkt_print(ohci
, NULL
, dev
, pipe
, buffer
, transfer_len
,
1264 cmd
, "SUB(rh)", usb_pipein(pipe
));
1268 if (usb_pipeint(pipe
)) {
1269 info("Root-Hub submit IRQ: NOT implemented");
1273 bmRType_bReq
= cmd
->requesttype
| (cmd
->request
<< 8);
1274 wValue
= le16_to_cpu(cmd
->value
);
1275 wIndex
= le16_to_cpu(cmd
->index
);
1276 wLength
= le16_to_cpu(cmd
->length
);
1278 info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x",
1279 dev
->devnum
, 8, bmRType_bReq
, wValue
, wIndex
, wLength
);
1281 switch (bmRType_bReq
) {
1282 /* Request Destination:
1283 without flags: Device,
1284 RH_INTERFACE: interface,
1285 RH_ENDPOINT: endpoint,
1286 RH_CLASS means HUB here,
1287 RH_OTHER | RH_CLASS almost ever means HUB_PORT here
1291 *(u16
*)databuf
= cpu_to_le16(1);
1293 case RH_GET_STATUS
| RH_INTERFACE
:
1294 *(u16
*)databuf
= cpu_to_le16(0);
1296 case RH_GET_STATUS
| RH_ENDPOINT
:
1297 *(u16
*)databuf
= cpu_to_le16(0);
1299 case RH_GET_STATUS
| RH_CLASS
:
1300 *(u32
*)databuf
= cpu_to_le32(
1301 RD_RH_STAT
& ~(RH_HS_CRWE
| RH_HS_DRWE
));
1303 case RH_GET_STATUS
| RH_OTHER
| RH_CLASS
:
1304 *(u32
*)databuf
= cpu_to_le32(RD_RH_PORTSTAT
);
1307 case RH_CLEAR_FEATURE
| RH_ENDPOINT
:
1309 case (RH_ENDPOINT_STALL
):
1314 case RH_CLEAR_FEATURE
| RH_CLASS
:
1316 case RH_C_HUB_LOCAL_POWER
:
1318 case (RH_C_HUB_OVER_CURRENT
):
1319 WR_RH_STAT(RH_HS_OCIC
);
1324 case RH_CLEAR_FEATURE
| RH_OTHER
| RH_CLASS
:
1326 case (RH_PORT_ENABLE
): WR_RH_PORTSTAT(RH_PS_CCS
); OK(0);
1327 case (RH_PORT_SUSPEND
): WR_RH_PORTSTAT(RH_PS_POCI
); OK(0);
1328 case (RH_PORT_POWER
): WR_RH_PORTSTAT(RH_PS_LSDA
); OK(0);
1329 case (RH_C_PORT_CONNECTION
): WR_RH_PORTSTAT(RH_PS_CSC
); OK(0);
1330 case (RH_C_PORT_ENABLE
): WR_RH_PORTSTAT(RH_PS_PESC
); OK(0);
1331 case (RH_C_PORT_SUSPEND
): WR_RH_PORTSTAT(RH_PS_PSSC
); OK(0);
1332 case (RH_C_PORT_OVER_CURRENT
):WR_RH_PORTSTAT(RH_PS_OCIC
); OK(0);
1333 case (RH_C_PORT_RESET
): WR_RH_PORTSTAT(RH_PS_PRSC
); OK(0);
1337 case RH_SET_FEATURE
| RH_OTHER
| RH_CLASS
:
1339 case (RH_PORT_SUSPEND
):
1340 WR_RH_PORTSTAT(RH_PS_PSS
); OK(0);
1341 case (RH_PORT_RESET
): /* BUG IN HUP CODE *********/
1342 if (RD_RH_PORTSTAT
& RH_PS_CCS
)
1343 WR_RH_PORTSTAT(RH_PS_PRS
);
1345 case (RH_PORT_POWER
):
1346 WR_RH_PORTSTAT(RH_PS_PPS
);
1348 case (RH_PORT_ENABLE
): /* BUG IN HUP CODE *********/
1349 if (RD_RH_PORTSTAT
& RH_PS_CCS
)
1350 WR_RH_PORTSTAT(RH_PS_PES
);
1355 case RH_SET_ADDRESS
:
1356 ohci
->rh
.devnum
= wValue
;
1359 case RH_GET_DESCRIPTOR
:
1360 switch ((wValue
& 0xff00) >> 8) {
1361 case (0x01): /* device descriptor */
1362 len
= min_t(unsigned int,
1365 sizeof(root_hub_dev_des
),
1367 databuf
= root_hub_dev_des
; OK(len
);
1368 case (0x02): /* configuration descriptor */
1369 len
= min_t(unsigned int,
1372 sizeof(root_hub_config_des
),
1374 databuf
= root_hub_config_des
; OK(len
);
1375 case (0x03): /* string descriptors */
1376 if (wValue
== 0x0300) {
1377 len
= min_t(unsigned int,
1380 sizeof(root_hub_str_index0
),
1382 databuf
= root_hub_str_index0
;
1385 if (wValue
== 0x0301) {
1386 len
= min_t(unsigned int,
1389 sizeof(root_hub_str_index1
),
1391 databuf
= root_hub_str_index1
;
1395 stat
= USB_ST_STALLED
;
1399 case RH_GET_DESCRIPTOR
| RH_CLASS
:
1401 __u32 temp
= roothub_a(ohci
);
1403 databuf
[0] = 9; /* min length; */
1405 databuf
[2] = temp
& RH_A_NDP
;
1406 #ifdef CONFIG_AT91C_PQFP_UHPBUG
1407 databuf
[2] = (databuf
[2] == 2) ? 1 : 0;
1410 if (temp
& RH_A_PSM
) /* per-port power switching? */
1412 if (temp
& RH_A_NOCP
) /* no overcurrent reporting? */
1414 else if (temp
& RH_A_OCPM
)/* per-port overcurrent reporting? */
1418 databuf
[5] = (temp
& RH_A_POTPGT
) >> 24;
1420 temp
= roothub_b(ohci
);
1421 databuf
[7] = temp
& RH_B_DR
;
1422 if (databuf
[2] < 7) {
1426 databuf
[8] = (temp
& RH_B_DR
) >> 8;
1427 databuf
[10] = databuf
[9] = 0xff;
1430 len
= min_t(unsigned int, leni
,
1431 min_t(unsigned int, databuf
[0], wLength
));
1435 case RH_GET_CONFIGURATION
:
1439 case RH_SET_CONFIGURATION
:
1440 WR_RH_STAT(0x10000);
1444 dbg("unsupported root hub command");
1445 stat
= USB_ST_STALLED
;
1449 ohci_dump_roothub(ohci
, 1);
1454 len
= min_t(int, len
, leni
);
1455 if (data
!= databuf
)
1456 memcpy(data
, databuf
, len
);
1461 pkt_print(ohci
, NULL
, dev
, pipe
, buffer
,
1462 transfer_len
, cmd
, "RET(rh)", 0/*usb_pipein(pipe)*/);
1470 /*-------------------------------------------------------------------------*/
1472 static ohci_dev_t
*ohci_get_ohci_dev(ohci_t
*ohci
, int devnum
, int intr
)
1477 return &ohci
->ohci_dev
;
1479 /* First see if we already have an ohci_dev for this dev. */
1480 for (i
= 0; i
< NUM_INT_DEVS
; i
++) {
1481 if (ohci
->int_dev
[i
].devnum
== devnum
)
1482 return &ohci
->int_dev
[i
];
1485 /* If not then find a free one. */
1486 for (i
= 0; i
< NUM_INT_DEVS
; i
++) {
1487 if (ohci
->int_dev
[i
].devnum
== -1) {
1488 ohci
->int_dev
[i
].devnum
= devnum
;
1489 return &ohci
->int_dev
[i
];
1493 printf("ohci: Error out of ohci_devs for interrupt endpoints\n");
1497 /* common code for handling submit messages - used for all but root hub */
1499 static urb_priv_t
*ohci_alloc_urb(struct usb_device
*dev
, unsigned long pipe
,
1500 void *buffer
, int transfer_len
, int interval
)
1504 urb
= calloc(1, sizeof(urb_priv_t
));
1506 printf("ohci: Error out of memory allocating urb\n");
1512 urb
->transfer_buffer
= buffer
;
1513 urb
->transfer_buffer_length
= transfer_len
;
1514 urb
->interval
= interval
;
1519 static int submit_common_msg(ohci_t
*ohci
, struct usb_device
*dev
,
1520 unsigned long pipe
, void *buffer
, int transfer_len
,
1521 struct devrequest
*setup
, int interval
)
1524 int maxsize
= usb_maxpacket(dev
, pipe
);
1527 ohci_dev_t
*ohci_dev
;
1529 urb
= ohci_alloc_urb(dev
, pipe
, buffer
, transfer_len
, interval
);
1534 urb
->actual_length
= 0;
1535 pkt_print(ohci
, urb
, dev
, pipe
, buffer
, transfer_len
,
1536 setup
, "SUB", usb_pipein(pipe
));
1541 err("submit_common_message: pipesize for pipe %lx is zero",
1546 ohci_dev
= ohci_get_ohci_dev(ohci
, dev
->devnum
, usb_pipeint(pipe
));
1550 if (sohci_submit_job(ohci
, ohci_dev
, urb
, setup
) < 0) {
1551 err("sohci_submit_job failed");
1557 /* ohci_dump_status(ohci); */
1560 timeout
= USB_TIMEOUT_MS(pipe
);
1562 /* wait for it to complete */
1564 /* check whether the controller is done */
1565 stat
= hc_interrupt(ohci
);
1567 stat
= USB_ST_CRC_ERR
;
1571 /* NOTE: since we are not interrupt driven in U-Boot and always
1572 * handle only one URB at a time, we cannot assume the
1573 * transaction finished on the first successful return from
1574 * hc_interrupt().. unless the flag for current URB is set,
1575 * meaning that all TD's to/from device got actually
1576 * transferred and processed. If the current URB is not
1577 * finished we need to re-iterate this loop so as
1578 * hc_interrupt() gets called again as there needs to be some
1579 * more TD's to process still */
1580 if ((stat
>= 0) && (stat
!= 0xff) && (urb
->finished
)) {
1581 /* 0xff is returned for an SF-interrupt */
1591 if (!usb_pipeint(pipe
))
1592 err("CTL:TIMEOUT ");
1593 dbg("submit_common_msg: TO status %x\n", stat
);
1595 stat
= USB_ST_CRC_ERR
;
1601 dev
->act_len
= urb
->actual_length
;
1603 if (usb_pipein(pipe
) && dev
->status
== 0 && dev
->act_len
)
1604 invalidate_dcache_buffer(buffer
, dev
->act_len
);
1607 pkt_print(ohci
, urb
, dev
, pipe
, buffer
, transfer_len
,
1608 setup
, "RET(ctlr)", usb_pipein(pipe
));
1616 #define MAX_INT_QUEUESIZE 8
1621 urb_priv_t
*urb
[MAX_INT_QUEUESIZE
];
1624 static struct int_queue
*_ohci_create_int_queue(ohci_t
*ohci
,
1625 struct usb_device
*udev
, unsigned long pipe
, int queuesize
,
1626 int elementsize
, void *buffer
, int interval
)
1628 struct int_queue
*queue
;
1629 ohci_dev_t
*ohci_dev
;
1632 if (queuesize
> MAX_INT_QUEUESIZE
)
1635 ohci_dev
= ohci_get_ohci_dev(ohci
, udev
->devnum
, 1);
1639 queue
= malloc(sizeof(*queue
));
1641 printf("ohci: Error out of memory allocating int queue\n");
1645 for (i
= 0; i
< queuesize
; i
++) {
1646 queue
->urb
[i
] = ohci_alloc_urb(udev
, pipe
,
1647 buffer
+ i
* elementsize
,
1648 elementsize
, interval
);
1652 if (sohci_submit_job(ohci
, ohci_dev
, queue
->urb
[i
], NULL
)) {
1653 printf("ohci: Error submitting int queue job\n");
1654 urb_free_priv(queue
->urb
[i
]);
1659 /* We did not succeed in submitting even 1 urb */
1664 queue
->queuesize
= i
;
1665 queue
->curr_urb
= 0;
1670 static void *_ohci_poll_int_queue(ohci_t
*ohci
, struct usb_device
*udev
,
1671 struct int_queue
*queue
)
1673 if (queue
->curr_urb
== queue
->queuesize
)
1674 return NULL
; /* Queue depleted */
1676 if (hc_interrupt(ohci
) < 0)
1679 if (queue
->urb
[queue
->curr_urb
]->finished
) {
1680 void *ret
= queue
->urb
[queue
->curr_urb
]->transfer_buffer
;
1688 static int _ohci_destroy_int_queue(ohci_t
*ohci
, struct usb_device
*dev
,
1689 struct int_queue
*queue
)
1693 for (i
= 0; i
< queue
->queuesize
; i
++)
1694 urb_free_priv(queue
->urb
[i
]);
1701 #ifndef CONFIG_DM_USB
1702 /* submit routines called from usb.c */
1703 int submit_bulk_msg(struct usb_device
*dev
, unsigned long pipe
, void *buffer
,
1706 info("submit_bulk_msg");
1707 return submit_common_msg(&gohci
, dev
, pipe
, buffer
, transfer_len
,
1711 int submit_int_msg(struct usb_device
*dev
, unsigned long pipe
, void *buffer
,
1712 int transfer_len
, int interval
)
1714 info("submit_int_msg");
1715 return submit_common_msg(&gohci
, dev
, pipe
, buffer
, transfer_len
, NULL
,
1719 struct int_queue
*create_int_queue(struct usb_device
*dev
,
1720 unsigned long pipe
, int queuesize
, int elementsize
,
1721 void *buffer
, int interval
)
1723 return _ohci_create_int_queue(&gohci
, dev
, pipe
, queuesize
,
1724 elementsize
, buffer
, interval
);
1727 void *poll_int_queue(struct usb_device
*dev
, struct int_queue
*queue
)
1729 return _ohci_poll_int_queue(&gohci
, dev
, queue
);
1732 int destroy_int_queue(struct usb_device
*dev
, struct int_queue
*queue
)
1734 return _ohci_destroy_int_queue(&gohci
, dev
, queue
);
1738 static int _ohci_submit_control_msg(ohci_t
*ohci
, struct usb_device
*dev
,
1739 unsigned long pipe
, void *buffer
, int transfer_len
,
1740 struct devrequest
*setup
)
1742 int maxsize
= usb_maxpacket(dev
, pipe
);
1744 info("submit_control_msg");
1746 pkt_print(ohci
, NULL
, dev
, pipe
, buffer
, transfer_len
,
1747 setup
, "SUB", usb_pipein(pipe
));
1752 err("submit_control_message: pipesize for pipe %lx is zero",
1756 if (((pipe
>> 8) & 0x7f) == ohci
->rh
.devnum
) {
1758 /* root hub - redirect */
1759 return ohci_submit_rh_msg(ohci
, dev
, pipe
, buffer
,
1760 transfer_len
, setup
);
1763 return submit_common_msg(ohci
, dev
, pipe
, buffer
, transfer_len
,
1767 /*-------------------------------------------------------------------------*
1769 *-------------------------------------------------------------------------*/
1771 /* reset the HC and BUS */
1773 static int hc_reset(ohci_t
*ohci
)
1775 #ifdef CONFIG_PCI_EHCI_DEVNO
1779 int smm_timeout
= 50; /* 0,5 sec */
1781 dbg("%s\n", __FUNCTION__
);
1783 #ifdef CONFIG_PCI_EHCI_DEVNO
1785 * Some multi-function controllers (e.g. ISP1562) allow root hub
1786 * resetting via EHCI registers only.
1788 pdev
= pci_find_devices(ehci_pci_ids
, CONFIG_PCI_EHCI_DEVNO
);
1793 pci_read_config_dword(pdev
, PCI_BASE_ADDRESS_0
, &base
);
1794 base
+= EHCI_USBCMD_OFF
;
1795 ohci_writel(ohci_readl(base
) | EHCI_USBCMD_HCRESET
, base
);
1797 while (ohci_readl(base
) & EHCI_USBCMD_HCRESET
) {
1798 if (timeout
-- <= 0) {
1799 printf("USB RootHub reset timed out!");
1805 printf("No EHCI func at %d index!\n", CONFIG_PCI_EHCI_DEVNO
);
1807 if (ohci_readl(&ohci
->regs
->control
) & OHCI_CTRL_IR
) {
1808 /* SMM owns the HC, request ownership */
1809 ohci_writel(OHCI_OCR
, &ohci
->regs
->cmdstatus
);
1810 info("USB HC TakeOver from SMM");
1811 while (ohci_readl(&ohci
->regs
->control
) & OHCI_CTRL_IR
) {
1813 if (--smm_timeout
== 0) {
1814 err("USB HC TakeOver failed!");
1820 /* Disable HC interrupts */
1821 ohci_writel(OHCI_INTR_MIE
, &ohci
->regs
->intrdisable
);
1823 dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;\n",
1825 ohci_readl(&ohci
->regs
->control
));
1827 /* Reset USB (needed by some controllers) */
1828 ohci
->hc_control
= 0;
1829 ohci_writel(ohci
->hc_control
, &ohci
->regs
->control
);
1831 /* HC Reset requires max 10 us delay */
1832 ohci_writel(OHCI_HCR
, &ohci
->regs
->cmdstatus
);
1833 while ((ohci_readl(&ohci
->regs
->cmdstatus
) & OHCI_HCR
) != 0) {
1834 if (--timeout
== 0) {
1835 err("USB HC reset timed out!");
1843 /*-------------------------------------------------------------------------*/
1845 /* Start an OHCI controller, set the BUS operational
1847 * connect the virtual root hub */
1849 static int hc_start(ohci_t
*ohci
)
1852 unsigned int fminterval
;
1856 for (i
= 0; i
< NUM_INT_DEVS
; i
++)
1857 ohci
->int_dev
[i
].devnum
= -1;
1859 /* Tell the controller where the control and bulk lists are
1860 * The lists are empty now. */
1862 ohci_writel(0, &ohci
->regs
->ed_controlhead
);
1863 ohci_writel(0, &ohci
->regs
->ed_bulkhead
);
1865 ohci_writel((__u32
)ohci
->hcca
,
1866 &ohci
->regs
->hcca
); /* reset clears this */
1868 fminterval
= 0x2edf;
1869 ohci_writel((fminterval
* 9) / 10, &ohci
->regs
->periodicstart
);
1870 fminterval
|= ((((fminterval
- 210) * 6) / 7) << 16);
1871 ohci_writel(fminterval
, &ohci
->regs
->fminterval
);
1872 ohci_writel(0x628, &ohci
->regs
->lsthresh
);
1874 /* start controller operations */
1875 ohci
->hc_control
= OHCI_CONTROL_INIT
| OHCI_USB_OPER
;
1877 ohci_writel(ohci
->hc_control
, &ohci
->regs
->control
);
1879 /* disable all interrupts */
1880 mask
= (OHCI_INTR_SO
| OHCI_INTR_WDH
| OHCI_INTR_SF
| OHCI_INTR_RD
|
1881 OHCI_INTR_UE
| OHCI_INTR_FNO
| OHCI_INTR_RHSC
|
1882 OHCI_INTR_OC
| OHCI_INTR_MIE
);
1883 ohci_writel(mask
, &ohci
->regs
->intrdisable
);
1884 /* clear all interrupts */
1885 mask
&= ~OHCI_INTR_MIE
;
1886 ohci_writel(mask
, &ohci
->regs
->intrstatus
);
1887 /* Choose the interrupts we care about now - but w/o MIE */
1888 mask
= OHCI_INTR_RHSC
| OHCI_INTR_UE
| OHCI_INTR_WDH
| OHCI_INTR_SO
;
1889 ohci_writel(mask
, &ohci
->regs
->intrenable
);
1892 /* required for AMD-756 and some Mac platforms */
1893 ohci_writel((roothub_a(ohci
) | RH_A_NPS
) & ~RH_A_PSM
,
1894 &ohci
->regs
->roothub
.a
);
1895 ohci_writel(RH_HS_LPSC
, &ohci
->regs
->roothub
.status
);
1896 #endif /* OHCI_USE_NPS */
1898 /* connect the virtual root hub */
1899 ohci
->rh
.devnum
= 0;
1904 /*-------------------------------------------------------------------------*/
1906 /* an interrupt happens */
1908 static int hc_interrupt(ohci_t
*ohci
)
1910 struct ohci_regs
*regs
= ohci
->regs
;
1914 invalidate_dcache_hcca(ohci
->hcca
);
1916 if ((ohci
->hcca
->done_head
!= 0) &&
1917 !(m32_swap(ohci
->hcca
->done_head
) & 0x01)) {
1918 ints
= OHCI_INTR_WDH
;
1920 ints
= ohci_readl(®s
->intrstatus
);
1921 if (ints
== ~(u32
)0) {
1923 err("%s device removed!", ohci
->slot_name
);
1926 ints
&= ohci_readl(®s
->intrenable
);
1928 dbg("hc_interrupt: returning..\n");
1934 /* dbg("Interrupt: %x frame: %x", ints,
1935 le16_to_cpu(ohci->hcca->frame_no)); */
1937 if (ints
& OHCI_INTR_RHSC
)
1940 if (ints
& OHCI_INTR_UE
) {
1942 err("OHCI Unrecoverable Error, controller usb-%s disabled",
1944 /* e.g. due to PCI Master/Target Abort */
1951 /* FIXME: be optimistic, hope that bug won't repeat often. */
1952 /* Make some non-interrupt context restart the controller. */
1953 /* Count and limit the retries though; either hardware or */
1954 /* software errors can go forever... */
1959 if (ints
& OHCI_INTR_WDH
) {
1961 ohci_writel(OHCI_INTR_WDH
, ®s
->intrdisable
);
1962 (void)ohci_readl(®s
->intrdisable
); /* flush */
1963 stat
= dl_done_list(ohci
);
1964 ohci_writel(OHCI_INTR_WDH
, ®s
->intrenable
);
1965 (void)ohci_readl(®s
->intrdisable
); /* flush */
1968 if (ints
& OHCI_INTR_SO
) {
1969 dbg("USB Schedule overrun\n");
1970 ohci_writel(OHCI_INTR_SO
, ®s
->intrenable
);
1974 /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */
1975 if (ints
& OHCI_INTR_SF
) {
1976 unsigned int frame
= m16_swap(ohci
->hcca
->frame_no
) & 1;
1978 ohci_writel(OHCI_INTR_SF
, ®s
->intrdisable
);
1979 if (ohci
->ed_rm_list
[frame
] != NULL
)
1980 ohci_writel(OHCI_INTR_SF
, ®s
->intrenable
);
1984 ohci_writel(ints
, ®s
->intrstatus
);
1988 /*-------------------------------------------------------------------------*/
1990 #ifndef CONFIG_DM_USB
1992 /*-------------------------------------------------------------------------*/
1994 /* De-allocate all resources.. */
1996 static void hc_release_ohci(ohci_t
*ohci
)
1998 dbg("USB HC release ohci usb-%s", ohci
->slot_name
);
2000 if (!ohci
->disabled
)
2004 /*-------------------------------------------------------------------------*/
2007 * low level initalisation routine, called from usb.c
2009 static char ohci_inited
= 0;
2011 int usb_lowlevel_init(int index
, enum usb_init_type init
, void **controller
)
2013 #ifdef CONFIG_PCI_OHCI
2017 #ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
2018 /* cpu dependant init */
2023 #ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
2024 /* board dependant init */
2025 if (board_usb_init(index
, USB_INIT_HOST
))
2028 memset(&gohci
, 0, sizeof(ohci_t
));
2030 /* align the storage */
2031 if ((__u32
)&ghcca
[0] & 0xff) {
2032 err("HCCA not aligned!!");
2035 gohci
.hcca
= &ghcca
[0];
2036 info("aligned ghcca %p", gohci
.hcca
);
2037 memset(gohci
.hcca
, 0, sizeof(struct ohci_hcca
));
2042 #ifdef CONFIG_PCI_OHCI
2043 pdev
= pci_find_devices(ohci_pci_ids
, CONFIG_PCI_OHCI_DEVNO
);
2048 pci_read_config_word(pdev
, PCI_VENDOR_ID
, &vid
);
2049 pci_read_config_word(pdev
, PCI_DEVICE_ID
, &did
);
2050 printf("OHCI pci controller (%04x, %04x) found @(%d:%d:%d)\n",
2051 vid
, did
, (pdev
>> 16) & 0xff,
2052 (pdev
>> 11) & 0x1f, (pdev
>> 8) & 0x7);
2053 pci_read_config_dword(pdev
, PCI_BASE_ADDRESS_0
, &base
);
2054 printf("OHCI regs address 0x%08x\n", base
);
2055 gohci
.regs
= (struct ohci_regs
*)base
;
2059 gohci
.regs
= (struct ohci_regs
*)CONFIG_SYS_USB_OHCI_REGS_BASE
;
2063 gohci
.slot_name
= CONFIG_SYS_USB_OHCI_SLOT_NAME
;
2065 if (hc_reset (&gohci
) < 0) {
2066 hc_release_ohci (&gohci
);
2067 err ("can't reset usb-%s", gohci
.slot_name
);
2068 #ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
2069 /* board dependant cleanup */
2070 board_usb_cleanup(index
, USB_INIT_HOST
);
2073 #ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
2074 /* cpu dependant cleanup */
2075 usb_cpu_init_fail();
2080 if (hc_start(&gohci
) < 0) {
2081 err("can't start usb-%s", gohci
.slot_name
);
2082 hc_release_ohci(&gohci
);
2083 /* Initialization failed */
2084 #ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
2085 /* board dependant cleanup */
2089 #ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
2090 /* cpu dependant cleanup */
2097 ohci_dump(&gohci
, 1);
2105 int usb_lowlevel_stop(int index
)
2107 /* this gets called really early - before the controller has */
2108 /* even been initialized! */
2111 /* TODO release any interrupts, etc. */
2112 /* call hc_release_ohci() here ? */
2115 #ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
2116 /* board dependant cleanup */
2117 if (usb_board_stop())
2121 #ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
2122 /* cpu dependant cleanup */
2126 /* This driver is no longer initialised. It needs a new low-level
2127 * init (board/cpu) before it can be used again. */
2132 int submit_control_msg(struct usb_device
*dev
, unsigned long pipe
,
2133 void *buffer
, int transfer_len
, struct devrequest
*setup
)
2135 return _ohci_submit_control_msg(&gohci
, dev
, pipe
, buffer
,
2136 transfer_len
, setup
);
2140 #ifdef CONFIG_DM_USB
2141 static int ohci_submit_control_msg(struct udevice
*dev
, struct usb_device
*udev
,
2142 unsigned long pipe
, void *buffer
, int length
,
2143 struct devrequest
*setup
)
2145 ohci_t
*ohci
= dev_get_priv(usb_get_bus(dev
));
2147 return _ohci_submit_control_msg(ohci
, udev
, pipe
, buffer
,
2151 static int ohci_submit_bulk_msg(struct udevice
*dev
, struct usb_device
*udev
,
2152 unsigned long pipe
, void *buffer
, int length
)
2154 ohci_t
*ohci
= dev_get_priv(usb_get_bus(dev
));
2156 return submit_common_msg(ohci
, udev
, pipe
, buffer
, length
, NULL
, 0);
2159 static int ohci_submit_int_msg(struct udevice
*dev
, struct usb_device
*udev
,
2160 unsigned long pipe
, void *buffer
, int length
,
2163 ohci_t
*ohci
= dev_get_priv(usb_get_bus(dev
));
2165 return submit_common_msg(ohci
, udev
, pipe
, buffer
, length
,
2169 static struct int_queue
*ohci_create_int_queue(struct udevice
*dev
,
2170 struct usb_device
*udev
, unsigned long pipe
, int queuesize
,
2171 int elementsize
, void *buffer
, int interval
)
2173 ohci_t
*ohci
= dev_get_priv(usb_get_bus(dev
));
2175 return _ohci_create_int_queue(ohci
, udev
, pipe
, queuesize
, elementsize
,
2179 static void *ohci_poll_int_queue(struct udevice
*dev
, struct usb_device
*udev
,
2180 struct int_queue
*queue
)
2182 ohci_t
*ohci
= dev_get_priv(usb_get_bus(dev
));
2184 return _ohci_poll_int_queue(ohci
, udev
, queue
);
2187 static int ohci_destroy_int_queue(struct udevice
*dev
, struct usb_device
*udev
,
2188 struct int_queue
*queue
)
2190 ohci_t
*ohci
= dev_get_priv(usb_get_bus(dev
));
2192 return _ohci_destroy_int_queue(ohci
, udev
, queue
);
2195 int ohci_register(struct udevice
*dev
, struct ohci_regs
*regs
)
2197 struct usb_bus_priv
*priv
= dev_get_uclass_priv(dev
);
2198 ohci_t
*ohci
= dev_get_priv(dev
);
2201 priv
->desc_before_addr
= true;
2204 ohci
->hcca
= memalign(256, sizeof(struct ohci_hcca
));
2207 memset(ohci
->hcca
, 0, sizeof(struct ohci_hcca
));
2209 if (hc_reset(ohci
) < 0)
2212 if (hc_start(ohci
) < 0)
2215 reg
= ohci_readl(®s
->revision
);
2216 printf("USB OHCI %x.%x\n", (reg
>> 4) & 0xf, reg
& 0xf);
2221 int ohci_deregister(struct udevice
*dev
)
2223 ohci_t
*ohci
= dev_get_priv(dev
);
2225 if (hc_reset(ohci
) < 0)
2233 struct dm_usb_ops ohci_usb_ops
= {
2234 .control
= ohci_submit_control_msg
,
2235 .bulk
= ohci_submit_bulk_msg
,
2236 .interrupt
= ohci_submit_int_msg
,
2237 .create_int_queue
= ohci_create_int_queue
,
2238 .poll_int_queue
= ohci_poll_int_queue
,
2239 .destroy_int_queue
= ohci_destroy_int_queue
,