1
2
3
4
5
6
7
8
9#include <common.h>
10#include <dm.h>
11#include <errno.h>
12#include <asm/byteorder.h>
13#include <asm/unaligned.h>
14#include <usb.h>
15#include <asm/io.h>
16#include <malloc.h>
17#include <memalign.h>
18#include <watchdog.h>
19#include <linux/compiler.h>
20
21#include "ehci.h"
22
23#ifndef CONFIG_USB_MAX_CONTROLLER_COUNT
24#define CONFIG_USB_MAX_CONTROLLER_COUNT 1
25#endif
26
27
28
29
30
31#define HCHALT_TIMEOUT (8 * 1000)
32
33#if !CONFIG_IS_ENABLED(DM_USB)
34static struct ehci_ctrl ehcic[CONFIG_USB_MAX_CONTROLLER_COUNT];
35#endif
36
37#define ALIGN_END_ADDR(type, ptr, size) \
38 ((unsigned long)(ptr) + roundup((size) * sizeof(type), USB_DMA_MINALIGN))
39
40static struct descriptor {
41 struct usb_hub_descriptor hub;
42 struct usb_device_descriptor device;
43 struct usb_linux_config_descriptor config;
44 struct usb_linux_interface_descriptor interface;
45 struct usb_endpoint_descriptor endpoint;
46} __attribute__ ((packed)) descriptor = {
47 {
48 0x8,
49 0x29,
50 2,
51 0,
52 10,
53 0,
54 {
55 }
56 },
57 {
58 0x12,
59 1,
60 cpu_to_le16(0x0200),
61 9,
62 0,
63 1,
64 64,
65 0x0000,
66 0x0000,
67 cpu_to_le16(0x0100),
68 1,
69 2,
70 0,
71 1
72 },
73 {
74 0x9,
75 2,
76 cpu_to_le16(0x19),
77 1,
78 1,
79 0,
80 0x40,
81 0
82 },
83 {
84 0x9,
85 4,
86 0,
87 0,
88 1,
89 9,
90 0,
91 0,
92 0
93 },
94 {
95 0x7,
96 5,
97 0x81,
98
99
100 3,
101 8,
102 255
103 },
104};
105
106#if defined(CONFIG_EHCI_IS_TDI)
107#define ehci_is_TDI() (1)
108#else
109#define ehci_is_TDI() (0)
110#endif
111
112static struct ehci_ctrl *ehci_get_ctrl(struct usb_device *udev)
113{
114#if CONFIG_IS_ENABLED(DM_USB)
115 return dev_get_priv(usb_get_bus(udev->dev));
116#else
117 return udev->controller;
118#endif
119}
120
121static int ehci_get_port_speed(struct ehci_ctrl *ctrl, uint32_t reg)
122{
123 return PORTSC_PSPD(reg);
124}
125
126static void ehci_set_usbmode(struct ehci_ctrl *ctrl)
127{
128 uint32_t tmp;
129 uint32_t *reg_ptr;
130
131 reg_ptr = (uint32_t *)((u8 *)&ctrl->hcor->or_usbcmd + USBMODE);
132 tmp = ehci_readl(reg_ptr);
133 tmp |= USBMODE_CM_HC;
134#if defined(CONFIG_EHCI_MMIO_BIG_ENDIAN)
135 tmp |= USBMODE_BE;
136#else
137 tmp &= ~USBMODE_BE;
138#endif
139 ehci_writel(reg_ptr, tmp);
140}
141
142static void ehci_powerup_fixup(struct ehci_ctrl *ctrl, uint32_t *status_reg,
143 uint32_t *reg)
144{
145 mdelay(50);
146}
147
148static uint32_t *ehci_get_portsc_register(struct ehci_ctrl *ctrl, int port)
149{
150 int max_ports = HCS_N_PORTS(ehci_readl(&ctrl->hccr->cr_hcsparams));
151
152 if (port < 0 || port >= max_ports) {
153
154 debug("The request port(%u) exceeds maximum port number\n",
155 port);
156 return NULL;
157 }
158
159 return (uint32_t *)&ctrl->hcor->or_portsc[port];
160}
161
162static int handshake(uint32_t *ptr, uint32_t mask, uint32_t done, int usec)
163{
164 uint32_t result;
165 do {
166 result = ehci_readl(ptr);
167 udelay(5);
168 if (result == ~(uint32_t)0)
169 return -1;
170 result &= mask;
171 if (result == done)
172 return 0;
173 usec--;
174 } while (usec > 0);
175 return -1;
176}
177
178static int ehci_reset(struct ehci_ctrl *ctrl)
179{
180 uint32_t cmd;
181 int ret = 0;
182
183 cmd = ehci_readl(&ctrl->hcor->or_usbcmd);
184 cmd = (cmd & ~CMD_RUN) | CMD_RESET;
185 ehci_writel(&ctrl->hcor->or_usbcmd, cmd);
186 ret = handshake((uint32_t *)&ctrl->hcor->or_usbcmd,
187 CMD_RESET, 0, 250 * 1000);
188 if (ret < 0) {
189 printf("EHCI fail to reset\n");
190 goto out;
191 }
192
193 if (ehci_is_TDI())
194 ctrl->ops.set_usb_mode(ctrl);
195
196#ifdef CONFIG_USB_EHCI_TXFIFO_THRESH
197 cmd = ehci_readl(&ctrl->hcor->or_txfilltuning);
198 cmd &= ~TXFIFO_THRESH_MASK;
199 cmd |= TXFIFO_THRESH(CONFIG_USB_EHCI_TXFIFO_THRESH);
200 ehci_writel(&ctrl->hcor->or_txfilltuning, cmd);
201#endif
202out:
203 return ret;
204}
205
206static int ehci_shutdown(struct ehci_ctrl *ctrl)
207{
208 int i, ret = 0;
209 uint32_t cmd, reg;
210 int max_ports = HCS_N_PORTS(ehci_readl(&ctrl->hccr->cr_hcsparams));
211
212 cmd = ehci_readl(&ctrl->hcor->or_usbcmd);
213
214 if (!(cmd & CMD_RUN))
215 return 0;
216 cmd &= ~(CMD_PSE | CMD_ASE);
217 ehci_writel(&ctrl->hcor->or_usbcmd, cmd);
218 ret = handshake(&ctrl->hcor->or_usbsts, STS_ASS | STS_PSS, 0,
219 100 * 1000);
220
221 if (!ret) {
222 for (i = 0; i < max_ports; i++) {
223 reg = ehci_readl(&ctrl->hcor->or_portsc[i]);
224 reg |= EHCI_PS_SUSP;
225 ehci_writel(&ctrl->hcor->or_portsc[i], reg);
226 }
227
228 cmd &= ~CMD_RUN;
229 ehci_writel(&ctrl->hcor->or_usbcmd, cmd);
230 ret = handshake(&ctrl->hcor->or_usbsts, STS_HALT, STS_HALT,
231 HCHALT_TIMEOUT);
232 }
233
234 if (ret)
235 puts("EHCI failed to shut down host controller.\n");
236
237 return ret;
238}
239
240static int ehci_td_buffer(struct qTD *td, void *buf, size_t sz)
241{
242 uint32_t delta, next;
243 unsigned long addr = (unsigned long)buf;
244 int idx;
245
246 if (addr != ALIGN(addr, ARCH_DMA_MINALIGN))
247 debug("EHCI-HCD: Misaligned buffer address (%p)\n", buf);
248
249 flush_dcache_range(addr, ALIGN(addr + sz, ARCH_DMA_MINALIGN));
250
251 idx = 0;
252 while (idx < QT_BUFFER_CNT) {
253 td->qt_buffer[idx] = cpu_to_hc32(virt_to_phys((void *)addr));
254 td->qt_buffer_hi[idx] = 0;
255 next = (addr + EHCI_PAGE_SIZE) & ~(EHCI_PAGE_SIZE - 1);
256 delta = next - addr;
257 if (delta >= sz)
258 break;
259 sz -= delta;
260 addr = next;
261 idx++;
262 }
263
264 if (idx == QT_BUFFER_CNT) {
265 printf("out of buffer pointers (%zu bytes left)\n", sz);
266 return -1;
267 }
268
269 return 0;
270}
271
272static inline u8 ehci_encode_speed(enum usb_device_speed speed)
273{
274 #define QH_HIGH_SPEED 2
275 #define QH_FULL_SPEED 0
276 #define QH_LOW_SPEED 1
277 if (speed == USB_SPEED_HIGH)
278 return QH_HIGH_SPEED;
279 if (speed == USB_SPEED_LOW)
280 return QH_LOW_SPEED;
281 return QH_FULL_SPEED;
282}
283
284static void ehci_update_endpt2_dev_n_port(struct usb_device *udev,
285 struct QH *qh)
286{
287 uint8_t portnr = 0;
288 uint8_t hubaddr = 0;
289
290 if (udev->speed != USB_SPEED_LOW && udev->speed != USB_SPEED_FULL)
291 return;
292
293 usb_find_usb2_hub_address_port(udev, &hubaddr, &portnr);
294
295 qh->qh_endpt2 |= cpu_to_hc32(QH_ENDPT2_PORTNUM(portnr) |
296 QH_ENDPT2_HUBADDR(hubaddr));
297}
298
299static int
300ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer,
301 int length, struct devrequest *req)
302{
303 ALLOC_ALIGN_BUFFER(struct QH, qh, 1, USB_DMA_MINALIGN);
304 struct qTD *qtd;
305 int qtd_count = 0;
306 int qtd_counter = 0;
307 volatile struct qTD *vtd;
308 unsigned long ts;
309 uint32_t *tdp;
310 uint32_t endpt, maxpacket, token, usbsts;
311 uint32_t c, toggle;
312 uint32_t cmd;
313 int timeout;
314 int ret = 0;
315 struct ehci_ctrl *ctrl = ehci_get_ctrl(dev);
316
317 debug("dev=%p, pipe=%lx, buffer=%p, length=%d, req=%p\n", dev, pipe,
318 buffer, length, req);
319 if (req != NULL)
320 debug("req=%u (%#x), type=%u (%#x), value=%u (%#x), index=%u\n",
321 req->request, req->request,
322 req->requesttype, req->requesttype,
323 le16_to_cpu(req->value), le16_to_cpu(req->value),
324 le16_to_cpu(req->index));
325
326#define PKT_ALIGN 512
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342 if (req != NULL)
343
344 qtd_count += 1 + 1;
345 if (length > 0 || req == NULL) {
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360 int xfr_sz = QT_BUFFER_CNT;
361
362
363
364
365
366 if ((unsigned long)buffer & (PKT_ALIGN - 1))
367 xfr_sz--;
368
369 xfr_sz *= EHCI_PAGE_SIZE;
370
371
372
373
374
375
376 qtd_count += 2 + length / xfr_sz;
377 }
378
379
380
381
382#if CONFIG_SYS_MALLOC_LEN <= 64 + 128 * 1024
383#warning CONFIG_SYS_MALLOC_LEN may be too small for EHCI
384#endif
385 qtd = memalign(USB_DMA_MINALIGN, qtd_count * sizeof(struct qTD));
386 if (qtd == NULL) {
387 printf("unable to allocate TDs\n");
388 return -1;
389 }
390
391 memset(qh, 0, sizeof(struct QH));
392 memset(qtd, 0, qtd_count * sizeof(*qtd));
393
394 toggle = usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe));
395
396
397
398
399
400
401
402
403
404
405
406 qh->qh_link = cpu_to_hc32(virt_to_phys(&ctrl->qh_list) | QH_LINK_TYPE_QH);
407 c = (dev->speed != USB_SPEED_HIGH) && !usb_pipeendpoint(pipe);
408 maxpacket = usb_maxpacket(dev, pipe);
409 endpt = QH_ENDPT1_RL(8) | QH_ENDPT1_C(c) |
410 QH_ENDPT1_MAXPKTLEN(maxpacket) | QH_ENDPT1_H(0) |
411 QH_ENDPT1_DTC(QH_ENDPT1_DTC_DT_FROM_QTD) |
412 QH_ENDPT1_ENDPT(usb_pipeendpoint(pipe)) | QH_ENDPT1_I(0) |
413 QH_ENDPT1_DEVADDR(usb_pipedevice(pipe));
414
415
416 if (!ctrl->has_fsl_erratum_a005275)
417 endpt |= QH_ENDPT1_EPS(ehci_encode_speed(dev->speed));
418 else
419 endpt |= QH_ENDPT1_EPS(ehci_encode_speed(QH_FULL_SPEED));
420
421 qh->qh_endpt1 = cpu_to_hc32(endpt);
422 endpt = QH_ENDPT2_MULT(1) | QH_ENDPT2_UFCMASK(0) | QH_ENDPT2_UFSMASK(0);
423 qh->qh_endpt2 = cpu_to_hc32(endpt);
424 ehci_update_endpt2_dev_n_port(dev, qh);
425 qh->qh_overlay.qt_next = cpu_to_hc32(QT_NEXT_TERMINATE);
426 qh->qh_overlay.qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE);
427
428 tdp = &qh->qh_overlay.qt_next;
429 if (req != NULL) {
430
431
432
433
434
435
436
437
438
439 qtd[qtd_counter].qt_next = cpu_to_hc32(QT_NEXT_TERMINATE);
440 qtd[qtd_counter].qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE);
441 token = QT_TOKEN_DT(0) | QT_TOKEN_TOTALBYTES(sizeof(*req)) |
442 QT_TOKEN_IOC(0) | QT_TOKEN_CPAGE(0) | QT_TOKEN_CERR(3) |
443 QT_TOKEN_PID(QT_TOKEN_PID_SETUP) |
444 QT_TOKEN_STATUS(QT_TOKEN_STATUS_ACTIVE);
445 qtd[qtd_counter].qt_token = cpu_to_hc32(token);
446 if (ehci_td_buffer(&qtd[qtd_counter], req, sizeof(*req))) {
447 printf("unable to construct SETUP TD\n");
448 goto fail;
449 }
450
451 *tdp = cpu_to_hc32(virt_to_phys(&qtd[qtd_counter]));
452 tdp = &qtd[qtd_counter++].qt_next;
453 toggle = 1;
454 }
455
456 if (length > 0 || req == NULL) {
457 uint8_t *buf_ptr = buffer;
458 int left_length = length;
459
460 do {
461
462
463
464
465 int xfr_bytes = QT_BUFFER_CNT * EHCI_PAGE_SIZE;
466
467
468
469
470
471 xfr_bytes -= (unsigned long)buf_ptr & (EHCI_PAGE_SIZE - 1);
472
473
474
475
476 xfr_bytes &= ~(PKT_ALIGN - 1);
477
478
479
480
481 xfr_bytes = min(xfr_bytes, left_length);
482
483
484
485
486
487
488
489
490
491
492 qtd[qtd_counter].qt_next =
493 cpu_to_hc32(QT_NEXT_TERMINATE);
494 qtd[qtd_counter].qt_altnext =
495 cpu_to_hc32(QT_NEXT_TERMINATE);
496 token = QT_TOKEN_DT(toggle) |
497 QT_TOKEN_TOTALBYTES(xfr_bytes) |
498 QT_TOKEN_IOC(req == NULL) | QT_TOKEN_CPAGE(0) |
499 QT_TOKEN_CERR(3) |
500 QT_TOKEN_PID(usb_pipein(pipe) ?
501 QT_TOKEN_PID_IN : QT_TOKEN_PID_OUT) |
502 QT_TOKEN_STATUS(QT_TOKEN_STATUS_ACTIVE);
503 qtd[qtd_counter].qt_token = cpu_to_hc32(token);
504 if (ehci_td_buffer(&qtd[qtd_counter], buf_ptr,
505 xfr_bytes)) {
506 printf("unable to construct DATA TD\n");
507 goto fail;
508 }
509
510 *tdp = cpu_to_hc32(virt_to_phys(&qtd[qtd_counter]));
511 tdp = &qtd[qtd_counter++].qt_next;
512
513
514
515
516
517 if ((xfr_bytes / maxpacket) & 1)
518 toggle ^= 1;
519 buf_ptr += xfr_bytes;
520 left_length -= xfr_bytes;
521 } while (left_length > 0);
522 }
523
524 if (req != NULL) {
525
526
527
528
529
530
531
532 qtd[qtd_counter].qt_next = cpu_to_hc32(QT_NEXT_TERMINATE);
533 qtd[qtd_counter].qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE);
534 token = QT_TOKEN_DT(1) | QT_TOKEN_TOTALBYTES(0) |
535 QT_TOKEN_IOC(1) | QT_TOKEN_CPAGE(0) | QT_TOKEN_CERR(3) |
536 QT_TOKEN_PID(usb_pipein(pipe) ?
537 QT_TOKEN_PID_OUT : QT_TOKEN_PID_IN) |
538 QT_TOKEN_STATUS(QT_TOKEN_STATUS_ACTIVE);
539 qtd[qtd_counter].qt_token = cpu_to_hc32(token);
540
541 *tdp = cpu_to_hc32(virt_to_phys(&qtd[qtd_counter]));
542 tdp = &qtd[qtd_counter++].qt_next;
543 }
544
545 ctrl->qh_list.qh_link = cpu_to_hc32(virt_to_phys(qh) | QH_LINK_TYPE_QH);
546
547
548 flush_dcache_range((unsigned long)&ctrl->qh_list,
549 ALIGN_END_ADDR(struct QH, &ctrl->qh_list, 1));
550 flush_dcache_range((unsigned long)qh, ALIGN_END_ADDR(struct QH, qh, 1));
551 flush_dcache_range((unsigned long)qtd,
552 ALIGN_END_ADDR(struct qTD, qtd, qtd_count));
553
554
555 ehci_writel(&ctrl->hcor->or_asynclistaddr, virt_to_phys(&ctrl->qh_list));
556
557 usbsts = ehci_readl(&ctrl->hcor->or_usbsts);
558 ehci_writel(&ctrl->hcor->or_usbsts, (usbsts & 0x3f));
559
560
561 cmd = ehci_readl(&ctrl->hcor->or_usbcmd);
562 cmd |= CMD_ASE;
563 ehci_writel(&ctrl->hcor->or_usbcmd, cmd);
564
565 ret = handshake((uint32_t *)&ctrl->hcor->or_usbsts, STS_ASS, STS_ASS,
566 100 * 1000);
567 if (ret < 0) {
568 printf("EHCI fail timeout STS_ASS set\n");
569 goto fail;
570 }
571
572
573 ts = get_timer(0);
574 vtd = &qtd[qtd_counter - 1];
575 timeout = USB_TIMEOUT_MS(pipe);
576 do {
577
578 invalidate_dcache_range((unsigned long)&ctrl->qh_list,
579 ALIGN_END_ADDR(struct QH, &ctrl->qh_list, 1));
580 invalidate_dcache_range((unsigned long)qh,
581 ALIGN_END_ADDR(struct QH, qh, 1));
582 invalidate_dcache_range((unsigned long)qtd,
583 ALIGN_END_ADDR(struct qTD, qtd, qtd_count));
584
585 token = hc32_to_cpu(vtd->qt_token);
586 if (!(QT_TOKEN_GET_STATUS(token) & QT_TOKEN_STATUS_ACTIVE))
587 break;
588 WATCHDOG_RESET();
589 } while (get_timer(ts) < timeout);
590
591
592
593
594
595
596
597
598
599
600 if (buffer != NULL && length > 0)
601 invalidate_dcache_range((unsigned long)buffer,
602 ALIGN((unsigned long)buffer + length, ARCH_DMA_MINALIGN));
603
604
605 if (QT_TOKEN_GET_STATUS(token) & QT_TOKEN_STATUS_ACTIVE)
606 printf("EHCI timed out on TD - token=%#x\n", token);
607
608
609 cmd = ehci_readl(&ctrl->hcor->or_usbcmd);
610 cmd &= ~CMD_ASE;
611 ehci_writel(&ctrl->hcor->or_usbcmd, cmd);
612
613 ret = handshake((uint32_t *)&ctrl->hcor->or_usbsts, STS_ASS, 0,
614 100 * 1000);
615 if (ret < 0) {
616 printf("EHCI fail timeout STS_ASS reset\n");
617 goto fail;
618 }
619
620 token = hc32_to_cpu(qh->qh_overlay.qt_token);
621 if (!(QT_TOKEN_GET_STATUS(token) & QT_TOKEN_STATUS_ACTIVE)) {
622 debug("TOKEN=%#x\n", token);
623 switch (QT_TOKEN_GET_STATUS(token) &
624 ~(QT_TOKEN_STATUS_SPLITXSTATE | QT_TOKEN_STATUS_PERR)) {
625 case 0:
626 toggle = QT_TOKEN_GET_DT(token);
627 usb_settoggle(dev, usb_pipeendpoint(pipe),
628 usb_pipeout(pipe), toggle);
629 dev->status = 0;
630 break;
631 case QT_TOKEN_STATUS_HALTED:
632 dev->status = USB_ST_STALLED;
633 break;
634 case QT_TOKEN_STATUS_ACTIVE | QT_TOKEN_STATUS_DATBUFERR:
635 case QT_TOKEN_STATUS_DATBUFERR:
636 dev->status = USB_ST_BUF_ERR;
637 break;
638 case QT_TOKEN_STATUS_HALTED | QT_TOKEN_STATUS_BABBLEDET:
639 case QT_TOKEN_STATUS_BABBLEDET:
640 dev->status = USB_ST_BABBLE_DET;
641 break;
642 default:
643 dev->status = USB_ST_CRC_ERR;
644 if (QT_TOKEN_GET_STATUS(token) & QT_TOKEN_STATUS_HALTED)
645 dev->status |= USB_ST_STALLED;
646 break;
647 }
648 dev->act_len = length - QT_TOKEN_GET_TOTALBYTES(token);
649 } else {
650 dev->act_len = 0;
651#ifndef CONFIG_USB_EHCI_FARADAY
652 debug("dev=%u, usbsts=%#x, p[1]=%#x, p[2]=%#x\n",
653 dev->devnum, ehci_readl(&ctrl->hcor->or_usbsts),
654 ehci_readl(&ctrl->hcor->or_portsc[0]),
655 ehci_readl(&ctrl->hcor->or_portsc[1]));
656#endif
657 }
658
659 free(qtd);
660 return (dev->status != USB_ST_NOT_PROC) ? 0 : -1;
661
662fail:
663 free(qtd);
664 return -1;
665}
666
667static int ehci_submit_root(struct usb_device *dev, unsigned long pipe,
668 void *buffer, int length, struct devrequest *req)
669{
670 uint8_t tmpbuf[4];
671 u16 typeReq;
672 void *srcptr = NULL;
673 int len, srclen;
674 uint32_t reg;
675 uint32_t *status_reg;
676 int port = le16_to_cpu(req->index) & 0xff;
677 struct ehci_ctrl *ctrl = ehci_get_ctrl(dev);
678
679 srclen = 0;
680
681 debug("req=%u (%#x), type=%u (%#x), value=%u, index=%u\n",
682 req->request, req->request,
683 req->requesttype, req->requesttype,
684 le16_to_cpu(req->value), le16_to_cpu(req->index));
685
686 typeReq = req->request | req->requesttype << 8;
687
688 switch (typeReq) {
689 case USB_REQ_GET_STATUS | ((USB_RT_PORT | USB_DIR_IN) << 8):
690 case USB_REQ_SET_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8):
691 case USB_REQ_CLEAR_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8):
692 status_reg = ctrl->ops.get_portsc_register(ctrl, port - 1);
693 if (!status_reg)
694 return -1;
695 break;
696 default:
697 status_reg = NULL;
698 break;
699 }
700
701 switch (typeReq) {
702 case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
703 switch (le16_to_cpu(req->value) >> 8) {
704 case USB_DT_DEVICE:
705 debug("USB_DT_DEVICE request\n");
706 srcptr = &descriptor.device;
707 srclen = descriptor.device.bLength;
708 break;
709 case USB_DT_CONFIG:
710 debug("USB_DT_CONFIG config\n");
711 srcptr = &descriptor.config;
712 srclen = descriptor.config.bLength +
713 descriptor.interface.bLength +
714 descriptor.endpoint.bLength;
715 break;
716 case USB_DT_STRING:
717 debug("USB_DT_STRING config\n");
718 switch (le16_to_cpu(req->value) & 0xff) {
719 case 0:
720 srcptr = "\4\3\1\0";
721 srclen = 4;
722 break;
723 case 1:
724 srcptr = "\16\3u\0-\0b\0o\0o\0t\0";
725 srclen = 14;
726 break;
727 case 2:
728 srcptr = "\52\3E\0H\0C\0I\0 "
729 "\0H\0o\0s\0t\0 "
730 "\0C\0o\0n\0t\0r\0o\0l\0l\0e\0r\0";
731 srclen = 42;
732 break;
733 default:
734 debug("unknown value DT_STRING %x\n",
735 le16_to_cpu(req->value));
736 goto unknown;
737 }
738 break;
739 default:
740 debug("unknown value %x\n", le16_to_cpu(req->value));
741 goto unknown;
742 }
743 break;
744 case USB_REQ_GET_DESCRIPTOR | ((USB_DIR_IN | USB_RT_HUB) << 8):
745 switch (le16_to_cpu(req->value) >> 8) {
746 case USB_DT_HUB:
747 debug("USB_DT_HUB config\n");
748 srcptr = &descriptor.hub;
749 srclen = descriptor.hub.bLength;
750 break;
751 default:
752 debug("unknown value %x\n", le16_to_cpu(req->value));
753 goto unknown;
754 }
755 break;
756 case USB_REQ_SET_ADDRESS | (USB_RECIP_DEVICE << 8):
757 debug("USB_REQ_SET_ADDRESS\n");
758 ctrl->rootdev = le16_to_cpu(req->value);
759 break;
760 case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
761 debug("USB_REQ_SET_CONFIGURATION\n");
762
763 break;
764 case USB_REQ_GET_STATUS | ((USB_DIR_IN | USB_RT_HUB) << 8):
765 tmpbuf[0] = 1;
766 tmpbuf[1] = 0;
767 srcptr = tmpbuf;
768 srclen = 2;
769 break;
770 case USB_REQ_GET_STATUS | ((USB_RT_PORT | USB_DIR_IN) << 8):
771 memset(tmpbuf, 0, 4);
772 reg = ehci_readl(status_reg);
773 if (reg & EHCI_PS_CS)
774 tmpbuf[0] |= USB_PORT_STAT_CONNECTION;
775 if (reg & EHCI_PS_PE)
776 tmpbuf[0] |= USB_PORT_STAT_ENABLE;
777 if (reg & EHCI_PS_SUSP)
778 tmpbuf[0] |= USB_PORT_STAT_SUSPEND;
779 if (reg & EHCI_PS_OCA)
780 tmpbuf[0] |= USB_PORT_STAT_OVERCURRENT;
781 if (reg & EHCI_PS_PR)
782 tmpbuf[0] |= USB_PORT_STAT_RESET;
783 if (reg & EHCI_PS_PP)
784 tmpbuf[1] |= USB_PORT_STAT_POWER >> 8;
785
786 if (ehci_is_TDI()) {
787 switch (ctrl->ops.get_port_speed(ctrl, reg)) {
788 case PORTSC_PSPD_FS:
789 break;
790 case PORTSC_PSPD_LS:
791 tmpbuf[1] |= USB_PORT_STAT_LOW_SPEED >> 8;
792 break;
793 case PORTSC_PSPD_HS:
794 default:
795 tmpbuf[1] |= USB_PORT_STAT_HIGH_SPEED >> 8;
796 break;
797 }
798 } else {
799 tmpbuf[1] |= USB_PORT_STAT_HIGH_SPEED >> 8;
800 }
801
802 if (reg & EHCI_PS_CSC)
803 tmpbuf[2] |= USB_PORT_STAT_C_CONNECTION;
804 if (reg & EHCI_PS_PEC)
805 tmpbuf[2] |= USB_PORT_STAT_C_ENABLE;
806 if (reg & EHCI_PS_OCC)
807 tmpbuf[2] |= USB_PORT_STAT_C_OVERCURRENT;
808 if (ctrl->portreset & (1 << port))
809 tmpbuf[2] |= USB_PORT_STAT_C_RESET;
810
811 srcptr = tmpbuf;
812 srclen = 4;
813 break;
814 case USB_REQ_SET_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8):
815 reg = ehci_readl(status_reg);
816 reg &= ~EHCI_PS_CLEAR;
817 switch (le16_to_cpu(req->value)) {
818 case USB_PORT_FEAT_ENABLE:
819 reg |= EHCI_PS_PE;
820 ehci_writel(status_reg, reg);
821 break;
822 case USB_PORT_FEAT_POWER:
823 if (HCS_PPC(ehci_readl(&ctrl->hccr->cr_hcsparams))) {
824 reg |= EHCI_PS_PP;
825 ehci_writel(status_reg, reg);
826 }
827 break;
828 case USB_PORT_FEAT_RESET:
829 if ((reg & (EHCI_PS_PE | EHCI_PS_CS)) == EHCI_PS_CS &&
830 !ehci_is_TDI() &&
831 EHCI_PS_IS_LOWSPEED(reg)) {
832
833 debug("port %d low speed --> companion\n",
834 port - 1);
835 reg |= EHCI_PS_PO;
836 ehci_writel(status_reg, reg);
837 return -ENXIO;
838 } else {
839 int ret;
840
841
842 if (ctrl->has_fsl_erratum_a005275)
843 reg |= PORTSC_FSL_PFSC;
844
845 reg |= EHCI_PS_PR;
846 reg &= ~EHCI_PS_PE;
847 ehci_writel(status_reg, reg);
848
849
850
851
852
853 ctrl->ops.powerup_fixup(ctrl, status_reg, ®);
854
855 ehci_writel(status_reg, reg & ~EHCI_PS_PR);
856
857
858
859
860
861 ret = handshake(status_reg, EHCI_PS_PR, 0,
862 2 * 1000);
863 if (!ret) {
864 reg = ehci_readl(status_reg);
865 if ((reg & (EHCI_PS_PE | EHCI_PS_CS))
866 == EHCI_PS_CS && !ehci_is_TDI()) {
867 debug("port %d full speed --> companion\n", port - 1);
868 reg &= ~EHCI_PS_CLEAR;
869 reg |= EHCI_PS_PO;
870 ehci_writel(status_reg, reg);
871 return -ENXIO;
872 } else {
873 ctrl->portreset |= 1 << port;
874 }
875 } else {
876 printf("port(%d) reset error\n",
877 port - 1);
878 }
879 }
880 break;
881 case USB_PORT_FEAT_TEST:
882 ehci_shutdown(ctrl);
883 reg &= ~(0xf << 16);
884 reg |= ((le16_to_cpu(req->index) >> 8) & 0xf) << 16;
885 ehci_writel(status_reg, reg);
886 break;
887 default:
888 debug("unknown feature %x\n", le16_to_cpu(req->value));
889 goto unknown;
890 }
891
892 (void) ehci_readl(&ctrl->hcor->or_usbcmd);
893 break;
894 case USB_REQ_CLEAR_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8):
895 reg = ehci_readl(status_reg);
896 reg &= ~EHCI_PS_CLEAR;
897 switch (le16_to_cpu(req->value)) {
898 case USB_PORT_FEAT_ENABLE:
899 reg &= ~EHCI_PS_PE;
900 break;
901 case USB_PORT_FEAT_C_ENABLE:
902 reg |= EHCI_PS_PE;
903 break;
904 case USB_PORT_FEAT_POWER:
905 if (HCS_PPC(ehci_readl(&ctrl->hccr->cr_hcsparams)))
906 reg &= ~EHCI_PS_PP;
907 break;
908 case USB_PORT_FEAT_C_CONNECTION:
909 reg |= EHCI_PS_CSC;
910 break;
911 case USB_PORT_FEAT_OVER_CURRENT:
912 reg |= EHCI_PS_OCC;
913 break;
914 case USB_PORT_FEAT_C_RESET:
915 ctrl->portreset &= ~(1 << port);
916 break;
917 default:
918 debug("unknown feature %x\n", le16_to_cpu(req->value));
919 goto unknown;
920 }
921 ehci_writel(status_reg, reg);
922
923 (void) ehci_readl(&ctrl->hcor->or_usbcmd);
924 break;
925 default:
926 debug("Unknown request\n");
927 goto unknown;
928 }
929
930 mdelay(1);
931 len = min3(srclen, (int)le16_to_cpu(req->length), length);
932 if (srcptr != NULL && len > 0)
933 memcpy(buffer, srcptr, len);
934 else
935 debug("Len is 0\n");
936
937 dev->act_len = len;
938 dev->status = 0;
939 return 0;
940
941unknown:
942 debug("requesttype=%x, request=%x, value=%x, index=%x, length=%x\n",
943 req->requesttype, req->request, le16_to_cpu(req->value),
944 le16_to_cpu(req->index), le16_to_cpu(req->length));
945
946 dev->act_len = 0;
947 dev->status = USB_ST_STALLED;
948 return -1;
949}
950
951static const struct ehci_ops default_ehci_ops = {
952 .set_usb_mode = ehci_set_usbmode,
953 .get_port_speed = ehci_get_port_speed,
954 .powerup_fixup = ehci_powerup_fixup,
955 .get_portsc_register = ehci_get_portsc_register,
956};
957
958static void ehci_setup_ops(struct ehci_ctrl *ctrl, const struct ehci_ops *ops)
959{
960 if (!ops) {
961 ctrl->ops = default_ehci_ops;
962 } else {
963 ctrl->ops = *ops;
964 if (!ctrl->ops.set_usb_mode)
965 ctrl->ops.set_usb_mode = ehci_set_usbmode;
966 if (!ctrl->ops.get_port_speed)
967 ctrl->ops.get_port_speed = ehci_get_port_speed;
968 if (!ctrl->ops.powerup_fixup)
969 ctrl->ops.powerup_fixup = ehci_powerup_fixup;
970 if (!ctrl->ops.get_portsc_register)
971 ctrl->ops.get_portsc_register =
972 ehci_get_portsc_register;
973 }
974}
975
976#if !CONFIG_IS_ENABLED(DM_USB)
977void ehci_set_controller_priv(int index, void *priv, const struct ehci_ops *ops)
978{
979 struct ehci_ctrl *ctrl = &ehcic[index];
980
981 ctrl->priv = priv;
982 ehci_setup_ops(ctrl, ops);
983}
984
985void *ehci_get_controller_priv(int index)
986{
987 return ehcic[index].priv;
988}
989#endif
990
991static int ehci_common_init(struct ehci_ctrl *ctrl, uint tweaks)
992{
993 struct QH *qh_list;
994 struct QH *periodic;
995 uint32_t reg;
996 uint32_t cmd;
997 int i;
998
999
1000 if (ehci_readl(&ctrl->hccr->cr_hccparams) & 1)
1001 ehci_writel(&ctrl->hcor->or_ctrldssegment, 0);
1002
1003 qh_list = &ctrl->qh_list;
1004
1005
1006 memset(qh_list, 0, sizeof(*qh_list));
1007 qh_list->qh_link = cpu_to_hc32(virt_to_phys(qh_list) | QH_LINK_TYPE_QH);
1008 qh_list->qh_endpt1 = cpu_to_hc32(QH_ENDPT1_H(1) |
1009 QH_ENDPT1_EPS(USB_SPEED_HIGH));
1010 qh_list->qh_overlay.qt_next = cpu_to_hc32(QT_NEXT_TERMINATE);
1011 qh_list->qh_overlay.qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE);
1012 qh_list->qh_overlay.qt_token =
1013 cpu_to_hc32(QT_TOKEN_STATUS(QT_TOKEN_STATUS_HALTED));
1014
1015 flush_dcache_range((unsigned long)qh_list,
1016 ALIGN_END_ADDR(struct QH, qh_list, 1));
1017
1018
1019 ehci_writel(&ctrl->hcor->or_asynclistaddr, virt_to_phys(qh_list));
1020
1021
1022
1023
1024
1025 ctrl->periodic_schedules = 0;
1026 periodic = &ctrl->periodic_queue;
1027 memset(periodic, 0, sizeof(*periodic));
1028 periodic->qh_link = cpu_to_hc32(QH_LINK_TERMINATE);
1029 periodic->qh_overlay.qt_next = cpu_to_hc32(QT_NEXT_TERMINATE);
1030 periodic->qh_overlay.qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE);
1031
1032 flush_dcache_range((unsigned long)periodic,
1033 ALIGN_END_ADDR(struct QH, periodic, 1));
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044 if (ctrl->periodic_list == NULL)
1045 ctrl->periodic_list = memalign(4096, 1024 * 4);
1046
1047 if (!ctrl->periodic_list)
1048 return -ENOMEM;
1049 for (i = 0; i < 1024; i++) {
1050 ctrl->periodic_list[i] = cpu_to_hc32((unsigned long)periodic
1051 | QH_LINK_TYPE_QH);
1052 }
1053
1054 flush_dcache_range((unsigned long)ctrl->periodic_list,
1055 ALIGN_END_ADDR(uint32_t, ctrl->periodic_list,
1056 1024));
1057
1058
1059 ehci_writel(&ctrl->hcor->or_periodiclistbase,
1060 (unsigned long)ctrl->periodic_list);
1061
1062 reg = ehci_readl(&ctrl->hccr->cr_hcsparams);
1063 descriptor.hub.bNbrPorts = HCS_N_PORTS(reg);
1064 debug("Register %x NbrPorts %d\n", reg, descriptor.hub.bNbrPorts);
1065
1066 if (HCS_INDICATOR(reg))
1067 put_unaligned(get_unaligned(&descriptor.hub.wHubCharacteristics)
1068 | 0x80, &descriptor.hub.wHubCharacteristics);
1069
1070 if (HCS_PPC(reg))
1071 put_unaligned(get_unaligned(&descriptor.hub.wHubCharacteristics)
1072 | 0x01, &descriptor.hub.wHubCharacteristics);
1073
1074
1075 cmd = ehci_readl(&ctrl->hcor->or_usbcmd);
1076
1077
1078
1079
1080 cmd &= ~(CMD_LRESET|CMD_IAAD|CMD_PSE|CMD_ASE|CMD_RESET);
1081 cmd |= CMD_RUN;
1082 ehci_writel(&ctrl->hcor->or_usbcmd, cmd);
1083
1084 if (!(tweaks & EHCI_TWEAK_NO_INIT_CF)) {
1085
1086 cmd = ehci_readl(&ctrl->hcor->or_configflag);
1087 cmd |= FLAG_CF;
1088 ehci_writel(&ctrl->hcor->or_configflag, cmd);
1089 }
1090
1091
1092 cmd = ehci_readl(&ctrl->hcor->or_usbcmd);
1093 mdelay(5);
1094 reg = HC_VERSION(ehci_readl(&ctrl->hccr->cr_capbase));
1095 printf("USB EHCI %x.%02x\n", reg >> 8, reg & 0xff);
1096
1097 return 0;
1098}
1099
1100#if !CONFIG_IS_ENABLED(DM_USB)
1101int usb_lowlevel_stop(int index)
1102{
1103 ehci_shutdown(&ehcic[index]);
1104 return ehci_hcd_stop(index);
1105}
1106
1107int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
1108{
1109 struct ehci_ctrl *ctrl = &ehcic[index];
1110 uint tweaks = 0;
1111 int rc;
1112
1113
1114
1115
1116
1117 ctrl->ops = default_ehci_ops;
1118
1119 rc = ehci_hcd_init(index, init, &ctrl->hccr, &ctrl->hcor);
1120 if (rc)
1121 return rc;
1122 if (!ctrl->hccr || !ctrl->hcor)
1123 return -1;
1124 if (init == USB_INIT_DEVICE)
1125 goto done;
1126
1127
1128 if (ehci_reset(ctrl))
1129 return -1;
1130
1131#if defined(CONFIG_EHCI_HCD_INIT_AFTER_RESET)
1132 rc = ehci_hcd_init(index, init, &ctrl->hccr, &ctrl->hcor);
1133 if (rc)
1134 return rc;
1135#endif
1136#ifdef CONFIG_USB_EHCI_FARADAY
1137 tweaks |= EHCI_TWEAK_NO_INIT_CF;
1138#endif
1139 rc = ehci_common_init(ctrl, tweaks);
1140 if (rc)
1141 return rc;
1142
1143 ctrl->rootdev = 0;
1144done:
1145 *controller = &ehcic[index];
1146 return 0;
1147}
1148#endif
1149
1150static int _ehci_submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
1151 void *buffer, int length)
1152{
1153
1154 if (usb_pipetype(pipe) != PIPE_BULK) {
1155 debug("non-bulk pipe (type=%lu)", usb_pipetype(pipe));
1156 return -1;
1157 }
1158 return ehci_submit_async(dev, pipe, buffer, length, NULL);
1159}
1160
1161static int _ehci_submit_control_msg(struct usb_device *dev, unsigned long pipe,
1162 void *buffer, int length,
1163 struct devrequest *setup)
1164{
1165 struct ehci_ctrl *ctrl = ehci_get_ctrl(dev);
1166
1167 if (usb_pipetype(pipe) != PIPE_CONTROL) {
1168 debug("non-control pipe (type=%lu)", usb_pipetype(pipe));
1169 return -1;
1170 }
1171
1172 if (usb_pipedevice(pipe) == ctrl->rootdev) {
1173 if (!ctrl->rootdev)
1174 dev->speed = USB_SPEED_HIGH;
1175 return ehci_submit_root(dev, pipe, buffer, length, setup);
1176 }
1177 return ehci_submit_async(dev, pipe, buffer, length, setup);
1178}
1179
1180struct int_queue {
1181 int elementsize;
1182 unsigned long pipe;
1183 struct QH *first;
1184 struct QH *current;
1185 struct QH *last;
1186 struct qTD *tds;
1187};
1188
1189#define NEXT_QH(qh) (struct QH *)((unsigned long)hc32_to_cpu((qh)->qh_link) & ~0x1f)
1190
1191static int
1192enable_periodic(struct ehci_ctrl *ctrl)
1193{
1194 uint32_t cmd;
1195 struct ehci_hcor *hcor = ctrl->hcor;
1196 int ret;
1197
1198 cmd = ehci_readl(&hcor->or_usbcmd);
1199 cmd |= CMD_PSE;
1200 ehci_writel(&hcor->or_usbcmd, cmd);
1201
1202 ret = handshake((uint32_t *)&hcor->or_usbsts,
1203 STS_PSS, STS_PSS, 100 * 1000);
1204 if (ret < 0) {
1205 printf("EHCI failed: timeout when enabling periodic list\n");
1206 return -ETIMEDOUT;
1207 }
1208 udelay(1000);
1209 return 0;
1210}
1211
1212static int
1213disable_periodic(struct ehci_ctrl *ctrl)
1214{
1215 uint32_t cmd;
1216 struct ehci_hcor *hcor = ctrl->hcor;
1217 int ret;
1218
1219 cmd = ehci_readl(&hcor->or_usbcmd);
1220 cmd &= ~CMD_PSE;
1221 ehci_writel(&hcor->or_usbcmd, cmd);
1222
1223 ret = handshake((uint32_t *)&hcor->or_usbsts,
1224 STS_PSS, 0, 100 * 1000);
1225 if (ret < 0) {
1226 printf("EHCI failed: timeout when disabling periodic list\n");
1227 return -ETIMEDOUT;
1228 }
1229 return 0;
1230}
1231
1232static struct int_queue *_ehci_create_int_queue(struct usb_device *dev,
1233 unsigned long pipe, int queuesize, int elementsize,
1234 void *buffer, int interval)
1235{
1236 struct ehci_ctrl *ctrl = ehci_get_ctrl(dev);
1237 struct int_queue *result = NULL;
1238 uint32_t i, toggle;
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251 if (elementsize > usb_maxpacket(dev, pipe)) {
1252 printf("%s: xfers requiring several transactions are not supported.\n",
1253 __func__);
1254 return NULL;
1255 }
1256
1257 debug("Enter create_int_queue\n");
1258 if (usb_pipetype(pipe) != PIPE_INTERRUPT) {
1259 debug("non-interrupt pipe (type=%lu)", usb_pipetype(pipe));
1260 return NULL;
1261 }
1262
1263
1264
1265
1266
1267 if (elementsize >= 16384) {
1268 debug("too large elements for interrupt transfers\n");
1269 return NULL;
1270 }
1271
1272 result = malloc(sizeof(*result));
1273 if (!result) {
1274 debug("ehci intr queue: out of memory\n");
1275 goto fail1;
1276 }
1277 result->elementsize = elementsize;
1278 result->pipe = pipe;
1279 result->first = memalign(USB_DMA_MINALIGN,
1280 sizeof(struct QH) * queuesize);
1281 if (!result->first) {
1282 debug("ehci intr queue: out of memory\n");
1283 goto fail2;
1284 }
1285 result->current = result->first;
1286 result->last = result->first + queuesize - 1;
1287 result->tds = memalign(USB_DMA_MINALIGN,
1288 sizeof(struct qTD) * queuesize);
1289 if (!result->tds) {
1290 debug("ehci intr queue: out of memory\n");
1291 goto fail3;
1292 }
1293 memset(result->first, 0, sizeof(struct QH) * queuesize);
1294 memset(result->tds, 0, sizeof(struct qTD) * queuesize);
1295
1296 toggle = usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe));
1297
1298 for (i = 0; i < queuesize; i++) {
1299 struct QH *qh = result->first + i;
1300 struct qTD *td = result->tds + i;
1301 void **buf = &qh->buffer;
1302
1303 qh->qh_link = cpu_to_hc32((unsigned long)(qh+1) | QH_LINK_TYPE_QH);
1304 if (i == queuesize - 1)
1305 qh->qh_link = cpu_to_hc32(QH_LINK_TERMINATE);
1306
1307 qh->qh_overlay.qt_next = cpu_to_hc32((unsigned long)td);
1308 qh->qh_overlay.qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE);
1309 qh->qh_endpt1 =
1310 cpu_to_hc32((0 << 28) |
1311 (usb_maxpacket(dev, pipe) << 16) |
1312 (1 << 14) |
1313 QH_ENDPT1_EPS(ehci_encode_speed(dev->speed)) |
1314 (usb_pipeendpoint(pipe) << 8) |
1315 (usb_pipedevice(pipe) << 0));
1316 qh->qh_endpt2 = cpu_to_hc32((1 << 30) |
1317 (1 << 0));
1318 if (dev->speed == USB_SPEED_LOW ||
1319 dev->speed == USB_SPEED_FULL) {
1320
1321 qh->qh_endpt2 |= cpu_to_hc32((0x1c << 8));
1322 }
1323 ehci_update_endpt2_dev_n_port(dev, qh);
1324
1325 td->qt_next = cpu_to_hc32(QT_NEXT_TERMINATE);
1326 td->qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE);
1327 debug("communication direction is '%s'\n",
1328 usb_pipein(pipe) ? "in" : "out");
1329 td->qt_token = cpu_to_hc32(
1330 QT_TOKEN_DT(toggle) |
1331 (elementsize << 16) |
1332 ((usb_pipein(pipe) ? 1 : 0) << 8) |
1333 0x80);
1334 td->qt_buffer[0] =
1335 cpu_to_hc32((unsigned long)buffer + i * elementsize);
1336 td->qt_buffer[1] =
1337 cpu_to_hc32((td->qt_buffer[0] + 0x1000) & ~0xfff);
1338 td->qt_buffer[2] =
1339 cpu_to_hc32((td->qt_buffer[0] + 0x2000) & ~0xfff);
1340 td->qt_buffer[3] =
1341 cpu_to_hc32((td->qt_buffer[0] + 0x3000) & ~0xfff);
1342 td->qt_buffer[4] =
1343 cpu_to_hc32((td->qt_buffer[0] + 0x4000) & ~0xfff);
1344
1345 *buf = buffer + i * elementsize;
1346 toggle ^= 1;
1347 }
1348
1349 flush_dcache_range((unsigned long)buffer,
1350 ALIGN_END_ADDR(char, buffer,
1351 queuesize * elementsize));
1352 flush_dcache_range((unsigned long)result->first,
1353 ALIGN_END_ADDR(struct QH, result->first,
1354 queuesize));
1355 flush_dcache_range((unsigned long)result->tds,
1356 ALIGN_END_ADDR(struct qTD, result->tds,
1357 queuesize));
1358
1359 if (ctrl->periodic_schedules > 0) {
1360 if (disable_periodic(ctrl) < 0) {
1361 debug("FATAL: periodic should never fail, but did");
1362 goto fail3;
1363 }
1364 }
1365
1366
1367 struct QH *list = &ctrl->periodic_queue;
1368 result->last->qh_link = list->qh_link;
1369 list->qh_link = cpu_to_hc32((unsigned long)result->first | QH_LINK_TYPE_QH);
1370
1371 flush_dcache_range((unsigned long)result->last,
1372 ALIGN_END_ADDR(struct QH, result->last, 1));
1373 flush_dcache_range((unsigned long)list,
1374 ALIGN_END_ADDR(struct QH, list, 1));
1375
1376 if (enable_periodic(ctrl) < 0) {
1377 debug("FATAL: periodic should never fail, but did");
1378 goto fail3;
1379 }
1380 ctrl->periodic_schedules++;
1381
1382 debug("Exit create_int_queue\n");
1383 return result;
1384fail3:
1385 if (result->tds)
1386 free(result->tds);
1387fail2:
1388 if (result->first)
1389 free(result->first);
1390 if (result)
1391 free(result);
1392fail1:
1393 return NULL;
1394}
1395
1396static void *_ehci_poll_int_queue(struct usb_device *dev,
1397 struct int_queue *queue)
1398{
1399 struct QH *cur = queue->current;
1400 struct qTD *cur_td;
1401 uint32_t token, toggle;
1402 unsigned long pipe = queue->pipe;
1403
1404
1405 if (cur == NULL) {
1406 debug("Exit poll_int_queue with completed queue\n");
1407 return NULL;
1408 }
1409
1410 cur_td = &queue->tds[queue->current - queue->first];
1411 invalidate_dcache_range((unsigned long)cur_td,
1412 ALIGN_END_ADDR(struct qTD, cur_td, 1));
1413 token = hc32_to_cpu(cur_td->qt_token);
1414 if (QT_TOKEN_GET_STATUS(token) & QT_TOKEN_STATUS_ACTIVE) {
1415 debug("Exit poll_int_queue with no completed intr transfer. token is %x\n", token);
1416 return NULL;
1417 }
1418
1419 toggle = QT_TOKEN_GET_DT(token);
1420 usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), toggle);
1421
1422 if (!(cur->qh_link & QH_LINK_TERMINATE))
1423 queue->current++;
1424 else
1425 queue->current = NULL;
1426
1427 invalidate_dcache_range((unsigned long)cur->buffer,
1428 ALIGN_END_ADDR(char, cur->buffer,
1429 queue->elementsize));
1430
1431 debug("Exit poll_int_queue with completed intr transfer. token is %x at %p (first at %p)\n",
1432 token, cur, queue->first);
1433 return cur->buffer;
1434}
1435
1436
1437static int _ehci_destroy_int_queue(struct usb_device *dev,
1438 struct int_queue *queue)
1439{
1440 struct ehci_ctrl *ctrl = ehci_get_ctrl(dev);
1441 int result = -1;
1442 unsigned long timeout;
1443
1444 if (disable_periodic(ctrl) < 0) {
1445 debug("FATAL: periodic should never fail, but did");
1446 goto out;
1447 }
1448 ctrl->periodic_schedules--;
1449
1450 struct QH *cur = &ctrl->periodic_queue;
1451 timeout = get_timer(0) + 500;
1452 while (!(cur->qh_link & cpu_to_hc32(QH_LINK_TERMINATE))) {
1453 debug("considering %p, with qh_link %x\n", cur, cur->qh_link);
1454 if (NEXT_QH(cur) == queue->first) {
1455 debug("found candidate. removing from chain\n");
1456 cur->qh_link = queue->last->qh_link;
1457 flush_dcache_range((unsigned long)cur,
1458 ALIGN_END_ADDR(struct QH, cur, 1));
1459 result = 0;
1460 break;
1461 }
1462 cur = NEXT_QH(cur);
1463 if (get_timer(0) > timeout) {
1464 printf("Timeout destroying interrupt endpoint queue\n");
1465 result = -1;
1466 goto out;
1467 }
1468 }
1469
1470 if (ctrl->periodic_schedules > 0) {
1471 result = enable_periodic(ctrl);
1472 if (result < 0)
1473 debug("FATAL: periodic should never fail, but did");
1474 }
1475
1476out:
1477 free(queue->tds);
1478 free(queue->first);
1479 free(queue);
1480
1481 return result;
1482}
1483
1484static int _ehci_submit_int_msg(struct usb_device *dev, unsigned long pipe,
1485 void *buffer, int length, int interval)
1486{
1487 void *backbuffer;
1488 struct int_queue *queue;
1489 unsigned long timeout;
1490 int result = 0, ret;
1491
1492 debug("dev=%p, pipe=%lu, buffer=%p, length=%d, interval=%d",
1493 dev, pipe, buffer, length, interval);
1494
1495 queue = _ehci_create_int_queue(dev, pipe, 1, length, buffer, interval);
1496 if (!queue)
1497 return -1;
1498
1499 timeout = get_timer(0) + USB_TIMEOUT_MS(pipe);
1500 while ((backbuffer = _ehci_poll_int_queue(dev, queue)) == NULL)
1501 if (get_timer(0) > timeout) {
1502 printf("Timeout poll on interrupt endpoint\n");
1503 result = -ETIMEDOUT;
1504 break;
1505 }
1506
1507 if (backbuffer != buffer) {
1508 debug("got wrong buffer back (%p instead of %p)\n",
1509 backbuffer, buffer);
1510 return -EINVAL;
1511 }
1512
1513 ret = _ehci_destroy_int_queue(dev, queue);
1514 if (ret < 0)
1515 return ret;
1516
1517
1518 return result;
1519}
1520
1521#if !CONFIG_IS_ENABLED(DM_USB)
1522int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
1523 void *buffer, int length)
1524{
1525 return _ehci_submit_bulk_msg(dev, pipe, buffer, length);
1526}
1527
1528int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
1529 int length, struct devrequest *setup)
1530{
1531 return _ehci_submit_control_msg(dev, pipe, buffer, length, setup);
1532}
1533
1534int submit_int_msg(struct usb_device *dev, unsigned long pipe,
1535 void *buffer, int length, int interval)
1536{
1537 return _ehci_submit_int_msg(dev, pipe, buffer, length, interval);
1538}
1539
1540struct int_queue *create_int_queue(struct usb_device *dev,
1541 unsigned long pipe, int queuesize, int elementsize,
1542 void *buffer, int interval)
1543{
1544 return _ehci_create_int_queue(dev, pipe, queuesize, elementsize,
1545 buffer, interval);
1546}
1547
1548void *poll_int_queue(struct usb_device *dev, struct int_queue *queue)
1549{
1550 return _ehci_poll_int_queue(dev, queue);
1551}
1552
1553int destroy_int_queue(struct usb_device *dev, struct int_queue *queue)
1554{
1555 return _ehci_destroy_int_queue(dev, queue);
1556}
1557#endif
1558
1559#if CONFIG_IS_ENABLED(DM_USB)
1560static int ehci_submit_control_msg(struct udevice *dev, struct usb_device *udev,
1561 unsigned long pipe, void *buffer, int length,
1562 struct devrequest *setup)
1563{
1564 debug("%s: dev='%s', udev=%p, udev->dev='%s', portnr=%d\n", __func__,
1565 dev->name, udev, udev->dev->name, udev->portnr);
1566
1567 return _ehci_submit_control_msg(udev, pipe, buffer, length, setup);
1568}
1569
1570static int ehci_submit_bulk_msg(struct udevice *dev, struct usb_device *udev,
1571 unsigned long pipe, void *buffer, int length)
1572{
1573 debug("%s: dev='%s', udev=%p\n", __func__, dev->name, udev);
1574 return _ehci_submit_bulk_msg(udev, pipe, buffer, length);
1575}
1576
1577static int ehci_submit_int_msg(struct udevice *dev, struct usb_device *udev,
1578 unsigned long pipe, void *buffer, int length,
1579 int interval)
1580{
1581 debug("%s: dev='%s', udev=%p\n", __func__, dev->name, udev);
1582 return _ehci_submit_int_msg(udev, pipe, buffer, length, interval);
1583}
1584
1585static struct int_queue *ehci_create_int_queue(struct udevice *dev,
1586 struct usb_device *udev, unsigned long pipe, int queuesize,
1587 int elementsize, void *buffer, int interval)
1588{
1589 debug("%s: dev='%s', udev=%p\n", __func__, dev->name, udev);
1590 return _ehci_create_int_queue(udev, pipe, queuesize, elementsize,
1591 buffer, interval);
1592}
1593
1594static void *ehci_poll_int_queue(struct udevice *dev, struct usb_device *udev,
1595 struct int_queue *queue)
1596{
1597 debug("%s: dev='%s', udev=%p\n", __func__, dev->name, udev);
1598 return _ehci_poll_int_queue(udev, queue);
1599}
1600
1601static int ehci_destroy_int_queue(struct udevice *dev, struct usb_device *udev,
1602 struct int_queue *queue)
1603{
1604 debug("%s: dev='%s', udev=%p\n", __func__, dev->name, udev);
1605 return _ehci_destroy_int_queue(udev, queue);
1606}
1607
1608static int ehci_get_max_xfer_size(struct udevice *dev, size_t *size)
1609{
1610
1611
1612
1613
1614 *size = SIZE_MAX;
1615
1616 return 0;
1617}
1618
1619int ehci_register(struct udevice *dev, struct ehci_hccr *hccr,
1620 struct ehci_hcor *hcor, const struct ehci_ops *ops,
1621 uint tweaks, enum usb_init_type init)
1622{
1623 struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
1624 struct ehci_ctrl *ctrl = dev_get_priv(dev);
1625 int ret = -1;
1626
1627 debug("%s: dev='%s', ctrl=%p, hccr=%p, hcor=%p, init=%d\n", __func__,
1628 dev->name, ctrl, hccr, hcor, init);
1629
1630 if (!ctrl || !hccr || !hcor)
1631 goto err;
1632
1633 priv->desc_before_addr = true;
1634
1635 ehci_setup_ops(ctrl, ops);
1636 ctrl->hccr = hccr;
1637 ctrl->hcor = hcor;
1638 ctrl->priv = ctrl;
1639
1640 ctrl->init = init;
1641 if (ctrl->init == USB_INIT_DEVICE)
1642 goto done;
1643
1644 ret = ehci_reset(ctrl);
1645 if (ret)
1646 goto err;
1647
1648 if (ctrl->ops.init_after_reset) {
1649 ret = ctrl->ops.init_after_reset(ctrl);
1650 if (ret)
1651 goto err;
1652 }
1653
1654 ret = ehci_common_init(ctrl, tweaks);
1655 if (ret)
1656 goto err;
1657done:
1658 return 0;
1659err:
1660 free(ctrl);
1661 debug("%s: failed, ret=%d\n", __func__, ret);
1662 return ret;
1663}
1664
1665int ehci_deregister(struct udevice *dev)
1666{
1667 struct ehci_ctrl *ctrl = dev_get_priv(dev);
1668
1669 if (ctrl->init == USB_INIT_DEVICE)
1670 return 0;
1671
1672 ehci_shutdown(ctrl);
1673
1674 return 0;
1675}
1676
1677struct dm_usb_ops ehci_usb_ops = {
1678 .control = ehci_submit_control_msg,
1679 .bulk = ehci_submit_bulk_msg,
1680 .interrupt = ehci_submit_int_msg,
1681 .create_int_queue = ehci_create_int_queue,
1682 .poll_int_queue = ehci_poll_int_queue,
1683 .destroy_int_queue = ehci_destroy_int_queue,
1684 .get_max_xfer_size = ehci_get_max_xfer_size,
1685};
1686
1687#endif
1688
1689#ifdef CONFIG_PHY
1690int ehci_setup_phy(struct udevice *dev, struct phy *phy, int index)
1691{
1692 int ret;
1693
1694 if (!phy)
1695 return 0;
1696
1697 ret = generic_phy_get_by_index(dev, index, phy);
1698 if (ret) {
1699 if (ret != -ENOENT) {
1700 dev_err(dev, "failed to get usb phy\n");
1701 return ret;
1702 }
1703 } else {
1704 ret = generic_phy_init(phy);
1705 if (ret) {
1706 dev_err(dev, "failed to init usb phy\n");
1707 return ret;
1708 }
1709
1710 ret = generic_phy_power_on(phy);
1711 if (ret) {
1712 dev_err(dev, "failed to power on usb phy\n");
1713 return generic_phy_exit(phy);
1714 }
1715 }
1716
1717 return 0;
1718}
1719
1720int ehci_shutdown_phy(struct udevice *dev, struct phy *phy)
1721{
1722 int ret = 0;
1723
1724 if (!phy)
1725 return 0;
1726
1727 if (generic_phy_valid(phy)) {
1728 ret = generic_phy_power_off(phy);
1729 if (ret) {
1730 dev_err(dev, "failed to power off usb phy\n");
1731 return ret;
1732 }
1733
1734 ret = generic_phy_exit(phy);
1735 if (ret) {
1736 dev_err(dev, "failed to power off usb phy\n");
1737 return ret;
1738 }
1739 }
1740
1741 return 0;
1742}
1743#else
1744int ehci_setup_phy(struct udevice *dev, struct phy *phy, int index)
1745{
1746 return 0;
1747}
1748
1749int ehci_shutdown_phy(struct udevice *dev, struct phy *phy)
1750{
1751 return 0;
1752}
1753#endif
1754