]> git.ipfire.org Git - people/ms/u-boot.git/blame - drivers/sl811_usb.c
projects / people / ms / u-boot.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Add some limited support for low-speed devices to SL811 USB controller
[people/ms/u-boot.git] / drivers / sl811_usb.c
CommitLineData
5cf91d6b
WD		 1/*
2 * (C) Copyright 2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * This code is based on linux driver for sl811hs chip, source at
6 * drivers/usb/host/sl811.c:
7 *
8 * SL811 Host Controller Interface driver for USB.
9 *
10 * Copyright (c) 2003/06, Courage Co., Ltd.
11 *
12 * Based on:
13 * 1.uhci.c by Linus Torvalds, Johannes Erdfelt, Randy Dunlap,
14 * Georg Acher, Deti Fliegl, Thomas Sailer, Roman Weissgaerber,
15 * Adam Richter, Gregory P. Smith;
16 * 2.Original SL811 driver (hc_sl811.o) by Pei Liu <pbl@cypress.com>
17 * 3.Rewrited as sl811.o by Yin Aihua <yinah:couragetech.com.cn>
18 *
19 * See file CREDITS for list of people who contributed to this
20 * project.
21 *
22 * This program is free software; you can redistribute it and/or
23 * modify it under the terms of the GNU General Public License as
24 * published by the Free Software Foundation; either version 2 of
25 * the License, or (at your option) any later version.
26 *
27 * This program is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 * GNU General Public License for more details.
31 *
32 * You should have received a copy of the GNU General Public License
33 * along with this program; if not, write to the Free Software
34 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
35 * MA 02111-1307 USA
36 */
37
38#include <common.h>
39#ifdef CONFIG_USB_SL811HS
40#include <mpc8xx.h>
41#include <usb.h>
42#include "sl811.h"
43
44#include "../board/kup/common/kup.h"
45
46#ifdef __PPC__
47# define EIEIO __asm__ volatile ("eieio")
48#else
49# define EIEIO /* nothing */
50#endif
51
52#define SL811_ADR (0x50000000)
53#define SL811_DAT (0x50000001)
54
55#define mdelay(n) ({unsigned long msec=(n); while (msec--) udelay(1000);})
56
57#ifdef SL811_DEBUG
58static int debug = 9;
59#endif
60
61static int root_hub_devnum = 0;
62static struct usb_port_status rh_status = { 0 };/* root hub port status */
63
64static int sl811_rh_submit_urb(struct usb_device *usb_dev, unsigned long pipe,
65 void *data, int buf_len, struct devrequest *cmd);
66
67static void sl811_write (__u8 index, __u8 data)
68{
69 *(volatile unsigned char *) (SL811_ADR) = index;
70 EIEIO;
71 *(volatile unsigned char *) (SL811_DAT) = data;
72 EIEIO;
73}
74
75static __u8 sl811_read (__u8 index)
76{
77 __u8 data;
78
79 *(volatile unsigned char *) (SL811_ADR) = index;
80 EIEIO;
81 data = *(volatile unsigned char *) (SL811_DAT);
82 EIEIO;
83 return (data);
84}
85
86/*
87 * Read consecutive bytes of data from the SL811H/SL11H buffer
88 */
89static void inline sl811_read_buf(__u8 offset, __u8 *buf, __u8 size)
90{
91 *(volatile unsigned char *) (SL811_ADR) = offset;
92 EIEIO;
93 while (size--) {
94 *buf++ = *(volatile unsigned char *) (SL811_DAT);
95 EIEIO;
96 }
97}
98
99/*
100 * Write consecutive bytes of data to the SL811H/SL11H buffer
101 */
102static void inline sl811_write_buf(__u8 offset, __u8 *buf, __u8 size)
103{
104 *(volatile unsigned char *) (SL811_ADR) = offset;
105 EIEIO;
106 while (size--) {
107 *(volatile unsigned char *) (SL811_DAT) = *buf++;
108 EIEIO;
109 }
110}
111
112int usb_init_kup4x (void)
113{
114 volatile immap_t *immap = (immap_t *) CFG_IMMR;
115 volatile memctl8xx_t *memctl = &immap->im_memctl;
116 int i;
117 unsigned char tmp;
118
119 memctl = &immap->im_memctl;
120 memctl->memc_or7 = 0xFFFF8726;
121 memctl->memc_br7 = 0x50000401; /* start at 0x50000000 */
122 /* BP 14 low = USB ON */
123 immap->im_cpm.cp_pbdat &= ~(BP_USB_VCC);
124 /* PB 14 nomal port */
125 immap->im_cpm.cp_pbpar &= ~(BP_USB_VCC);
126 /* output */
127 immap->im_cpm.cp_pbdir |= (BP_USB_VCC);
128
129 puts ("USB: ");
130
131 for (i = 0x10; i < 0xff; i++) {
132 sl811_write(i, i);
133 tmp = (sl811_read(i));
134 if (tmp != i) {
135 printf ("SL811 compare error index=0x%02x read=0x%02x\n", i, tmp);
136 return (-1);
137 }
138 }
139 printf ("SL811 ready\n");
140 return (0);
141}
142
143/*
144 * This function resets SL811HS controller and detects the speed of
145 * the connecting device
146 *
147 * Return: 0 = no device attached; 1 = USB device attached
148 */
149static int sl811_hc_reset(void)
150{
151 int status ;
152
153 sl811_write(SL811_CTRL2, SL811_CTL2_HOST | SL811_12M_HI);
154 sl811_write(SL811_CTRL1, SL811_CTRL1_RESET);
155
156 mdelay(20);
157
158 /* Disable hardware SOF generation, clear all irq status. */
159 sl811_write(SL811_CTRL1, 0);
160 mdelay(2);
161 sl811_write(SL811_INTRSTS, 0xff);
162 status = sl811_read(SL811_INTRSTS);
163
164 if (status & SL811_INTR_NOTPRESENT) {
165 /* Device is not present */
166 PDEBUG(0, "Device not present\n");
167 rh_status.wPortStatus &= ~(USB_PORT_STAT_CONNECTION | USB_PORT_STAT_ENABLE);
168 rh_status.wPortChange |= USB_PORT_STAT_C_CONNECTION;
169 sl811_write(SL811_INTR, SL811_INTR_INSRMV);
170 return 0;
171 }
172
173 /* Send SOF to address 0, endpoint 0. */
174 sl811_write(SL811_LEN_B, 0);
175 sl811_write(SL811_PIDEP_B, PIDEP(USB_PID_SOF, 0));
176 sl811_write(SL811_DEV_B, 0x00);
177 sl811_write(SL811_SOFLOW, SL811_12M_LOW);
178
179 if (status & SL811_INTR_SPEED_FULL) {
180 /* full speed device connect directly to root hub */
181 PDEBUG (0, "Full speed Device attached\n");
182
183 sl811_write(SL811_CTRL1, SL811_CTRL1_RESET);
184 mdelay(20);
185 sl811_write(SL811_CTRL2, SL811_CTL2_HOST | SL811_12M_HI);
186 sl811_write(SL811_CTRL1, SL811_CTRL1_SOF);
187
188 /* start the SOF or EOP */
189 sl811_write(SL811_CTRL_B, SL811_USB_CTRL_ARM);
190 rh_status.wPortStatus |= USB_PORT_STAT_CONNECTION;
191 rh_status.wPortStatus &= ~USB_PORT_STAT_LOW_SPEED;
192 mdelay(2);
193 sl811_write(SL811_INTRSTS, 0xff);
194 } else {
195 /* slow speed device connect directly to root-hub */
196 PDEBUG(0, "Low speed Device attached\n");
197
198 sl811_write(SL811_CTRL1, SL811_CTRL1_RESET);
199 mdelay(20);
200 sl811_write(SL811_CTRL2, SL811_CTL2_HOST | SL811_CTL2_DSWAP | SL811_12M_HI);
201 sl811_write(SL811_CTRL1, SL811_CTRL1_SPEED_LOW | SL811_CTRL1_SOF);
202
203 /* start the SOF or EOP */
204 sl811_write(SL811_CTRL_B, SL811_USB_CTRL_ARM);
205 rh_status.wPortStatus |= USB_PORT_STAT_CONNECTION | USB_PORT_STAT_LOW_SPEED;
206 mdelay(2);
207 sl811_write(SL811_INTRSTS, 0xff);
208 }
209
210 rh_status.wPortChange |= USB_PORT_STAT_C_CONNECTION;
211 sl811_write(SL811_INTR, /*SL811_INTR_INSRMV*/SL811_INTR_DONE_A);
212
213 return 1;
214}
215
216int usb_lowlevel_init(void)
217{
218 root_hub_devnum = 0;
219 sl811_hc_reset();
220 return 0;
221}
222
223int usb_lowlevel_stop(void)
224{
225 sl811_hc_reset();
226 return 0;
227}
228
32877d66
WD		 229static int calc_needed_buswidth(int bytes, int low_speed)
230{
9d9e2837 231 return low_speed ? 0 : bytes * 8 + 512;
32877d66
WD		 232}
233
234static int sl811_send_packet(int dir_to_host, int data1, __u8 *buffer, int len)
5cf91d6b
WD		 235{
236 __u8 ctrl = SL811_USB_CTRL_ARM | SL811_USB_CTRL_ENABLE;
2729af9d
WD		 237 __u16 status = 0;
238 int err = 0, timeout = get_timer(0) + 5*CFG_HZ;
5cf91d6b
WD		 239
240 if (len > 239)
241 return -1;
242
243 if (!dir_to_host)
244 ctrl |= SL811_USB_CTRL_DIR_OUT;
245 if (data1)
246 ctrl |= SL811_USB_CTRL_TOGGLE_1;
247
2729af9d 248 sl811_write(SL811_INTRSTS, 0xff);
5cf91d6b
WD		 249
250 while (err < 3) {
2729af9d
WD		 251 sl811_write(SL811_ADDR_A, 0x10);
252 sl811_write(SL811_LEN_A, len);
253 if (!dir_to_host && len)
254 sl811_write_buf(0x10, buffer, len);
255
9d9e2837
WD		 256 if (sl811_read(SL811_SOFCNTDIV)*64 <
257 calc_needed_buswidth(len, rh_status.wPortStatus & USB_PORT_STAT_LOW_SPEED))
5cf91d6b
WD		 258 ctrl |= SL811_USB_CTRL_SOF;
259 else
260 ctrl &= ~SL811_USB_CTRL_SOF;
2729af9d 261
5cf91d6b 262 sl811_write(SL811_CTRL_A, ctrl);
2729af9d
WD		 263 while (!(sl811_read(SL811_INTRSTS) & SL811_INTR_DONE_A)) {
264 if (timeout < get_timer(0)) {
265 printf("USB transmit timed out\n");
266 return -USB_ST_CRC_ERR;
267 }
268 }
5cf91d6b
WD		 269
270 sl811_write(SL811_INTRSTS, 0xff);
271 status = sl811_read(SL811_STS_A);
272
273 if (status & SL811_USB_STS_ACK) {
274 int remainder = sl811_read(SL811_CNT_A);
275 if (remainder) {
276 PDEBUG(0, "usb transfer remainder = %d\n", remainder);
277 len -= remainder;
278 }
279 if (dir_to_host && len)
280 sl811_read_buf(0x10, buffer, len);
281 return len;
282 }
283
284 if ((status & SL811_USB_STS_NAK) == SL811_USB_STS_NAK)
285 continue;
286
287 PDEBUG(0, "usb transfer error %#x\n", (int)status);
288 err++;
289 }
290
2729af9d
WD		 291 err = 0;
292
293 if (status & SL811_USB_STS_ERROR)
294 err |= USB_ST_BUF_ERR;
295 if (status & SL811_USB_STS_TIMEOUT)
296 err |= USB_ST_CRC_ERR;
297 if (status & SL811_USB_STS_STALL)
298 err |= USB_ST_STALLED;
299
300 return -err;
5cf91d6b
WD		 301}
302
303int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
304 int len)
305{
306 int dir_out = usb_pipeout(pipe);
307 int ep = usb_pipeendpoint(pipe);
308 __u8* buf = (__u8*)buffer;
309 int max = usb_maxpacket(dev, pipe);
310 int done = 0;
311
312 PDEBUG(7, "dev = %ld pipe = %ld buf = %p size = %d dir_out = %d\n",
313 usb_pipedevice(pipe), usb_pipeendpoint(pipe), buffer, len, dir_out);
314
315 dev->status = 0;
316
317 sl811_write(SL811_DEV_A, usb_pipedevice(pipe));
318 sl811_write(SL811_PIDEP_A, PIDEP(!dir_out ? USB_PID_IN : USB_PID_OUT, ep));
319 while (done < len) {
320 int res = sl811_send_packet(!dir_out, usb_gettoggle(dev, ep, dir_out),
321 buf+done,
322 max > len - done ? len - done : max);
323 if (res < 0) {
2729af9d 324 dev->status = -res;
5cf91d6b
WD		 325 return res;
326 }
327
328 if (!dir_out && res < max) /* short packet */
329 break;
330
331 done += res;
332 usb_dotoggle(dev, ep, dir_out);
333 }
334
335 dev->act_len = done;
336
337 return 0;
338}
339
340int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
341 int len,struct devrequest *setup)
342{
343 int done = 0;
344 int devnum = usb_pipedevice(pipe);
345
346 dev->status = 0;
347
348 if (devnum == root_hub_devnum)
349 return sl811_rh_submit_urb(dev, pipe, buffer, len, setup);
350
351 PDEBUG(7, "dev = %d pipe = %ld buf = %p size = %d rt = %#x req = %#x\n",
352 devnum, usb_pipeendpoint(pipe), buffer, len, (int)setup->requesttype,
353 (int)setup->request);
354
355 sl811_write(SL811_DEV_A, devnum);
356 sl811_write(SL811_PIDEP_A, PIDEP(USB_PID_SETUP, 0));
357 /* setup phase */
358 if (sl811_send_packet(0, 0, (__u8*)setup, sizeof(*setup)) == sizeof(*setup)) {
359 int dir_in = setup->requesttype & USB_DIR_IN;
360 __u8* buf = (__u8*)buffer;
361 int data1 = 1;
362 int max = usb_maxpacket(dev, pipe);
363
364 /* data phase */
365 sl811_write(SL811_PIDEP_A,
366 PIDEP(dir_in ? USB_PID_IN : USB_PID_OUT, 0));
367 while (done < len) {
368 int res = sl811_send_packet(dir_in, data1, buf+done,
369 max > len - done ? len - done : max);
2729af9d
WD		 370 if (res < 0) {
371 dev->status = -res;
372 return 0;
373 }
5cf91d6b
WD		 374 done += res;
375
376 if (dir_in && res < max) /* short packet */
377 break;
378
379 data1 = !data1;
380 }
381
382 /* status phase */
383 sl811_write(SL811_PIDEP_A,
384 PIDEP(!dir_in ? USB_PID_IN : USB_PID_OUT, 0));
385 if (sl811_send_packet(!dir_in, 1, 0, 0) < 0) {
386 PDEBUG(0, "status phase failed!\n");
387 dev->status = -1;
388 }
389 } else {
390 PDEBUG(0, "setup phase failed!\n");
391 dev->status = -1;
392 }
393
394 dev->act_len = done;
395
396 return done;
397}
398
399int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
400 int len, int interval)
401{
2729af9d 402 PDEBUG(0, "dev = %p pipe = %#lx buf = %p size = %d int = %d\n", dev, pipe,
5cf91d6b
WD		 403 buffer, len, interval);
404 return -1;
405}
406
407/*
408 * SL811 Virtual Root Hub
409 */
410
411/* Device descriptor */
412static __u8 sl811_rh_dev_des[] =
413{
414 0x12, /* __u8 bLength; */
415 0x01, /* __u8 bDescriptorType; Device */
416 0x10, /* __u16 bcdUSB; v1.1 */
417 0x01,
418 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
419 0x00, /* __u8 bDeviceSubClass; */
420 0x00, /* __u8 bDeviceProtocol; */
421 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
422 0x00, /* __u16 idVendor; */
423 0x00,
424 0x00, /* __u16 idProduct; */
425 0x00,
426 0x00, /* __u16 bcdDevice; */
427 0x00,
428 0x00, /* __u8 iManufacturer; */
429 0x02, /* __u8 iProduct; */
430 0x01, /* __u8 iSerialNumber; */
431 0x01 /* __u8 bNumConfigurations; */
432};
433
434/* Configuration descriptor */
435static __u8 sl811_rh_config_des[] =
436{
437 0x09, /* __u8 bLength; */
438 0x02, /* __u8 bDescriptorType; Configuration */
439 0x19, /* __u16 wTotalLength; */
440 0x00,
441 0x01, /* __u8 bNumInterfaces; */
442 0x01, /* __u8 bConfigurationValue; */
443 0x00, /* __u8 iConfiguration; */
444 0x40, /* __u8 bmAttributes;
445 Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup,
446 4..0: resvd */
447 0x00, /* __u8 MaxPower; */
448
449 /* interface */
450 0x09, /* __u8 if_bLength; */
451 0x04, /* __u8 if_bDescriptorType; Interface */
452 0x00, /* __u8 if_bInterfaceNumber; */
453 0x00, /* __u8 if_bAlternateSetting; */
454 0x01, /* __u8 if_bNumEndpoints; */
455 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */
456 0x00, /* __u8 if_bInterfaceSubClass; */
457 0x00, /* __u8 if_bInterfaceProtocol; */
458 0x00, /* __u8 if_iInterface; */
459
460 /* endpoint */
461 0x07, /* __u8 ep_bLength; */
462 0x05, /* __u8 ep_bDescriptorType; Endpoint */
463 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
464 0x03, /* __u8 ep_bmAttributes; Interrupt */
465 0x08, /* __u16 ep_wMaxPacketSize; */
466 0x00,
467 0xff /* __u8 ep_bInterval; 255 ms */
468};
469
470/* root hub class descriptor*/
471static __u8 sl811_rh_hub_des[] =
472{
473 0x09, /* __u8 bLength; */
474 0x29, /* __u8 bDescriptorType; Hub-descriptor */
475 0x01, /* __u8 bNbrPorts; */
476 0x00, /* __u16 wHubCharacteristics; */
477 0x00,
478 0x50, /* __u8 bPwrOn2pwrGood; 2ms */
479 0x00, /* __u8 bHubContrCurrent; 0 mA */
480 0xfc, /* __u8 DeviceRemovable; *** 7 Ports max *** */
481 0xff /* __u8 PortPwrCtrlMask; *** 7 ports max *** */
482};
483
484/*
485 * helper routine for returning string descriptors in UTF-16LE
486 * input can actually be ISO-8859-1; ASCII is its 7-bit subset
487 */
488static int ascii2utf (char *s, u8 *utf, int utfmax)
489{
490 int retval;
491
492 for (retval = 0; *s && utfmax > 1; utfmax -= 2, retval += 2) {
493 *utf++ = *s++;
494 *utf++ = 0;
495 }
496 return retval;
497}
498
499/*
500 * root_hub_string is used by each host controller's root hub code,
501 * so that they're identified consistently throughout the system.
502 */
32877d66 503static int usb_root_hub_string (int id, int serial, char *type, __u8 *data, int len)
5cf91d6b
WD		 504{
505 char buf [30];
506
507 /* assert (len > (2 * (sizeof (buf) + 1)));
508 assert (strlen (type) <= 8);*/
509
510 /* language ids */
511 if (id == 0) {
32877d66 512 *data++ = 3; *data++ = 4; /* 4 bytes data */
5cf91d6b
WD		 513 *data++ = 0; *data++ = 0; /* some language id */
514 return 4;
515
516 /* serial number */
517 } else if (id == 1) {
518 sprintf (buf, "%x", serial);
519
520 /* product description */
521 } else if (id == 2) {
522 sprintf (buf, "USB %s Root Hub", type);
523
524 /* id 3 == vendor description */
525
526 /* unsupported IDs --> "stall" */
527 } else
528 return 0;
529
530 data [0] = 2 + ascii2utf (buf, data + 2, len - 2);
531 data [1] = 3;
532 return data [0];
533}
534
535/* helper macro */
536#define OK(x) len = (x); break
537
538/*
539 * This function handles all USB request to the the virtual root hub
540 */
541static int sl811_rh_submit_urb(struct usb_device *usb_dev, unsigned long pipe,
542 void *data, int buf_len, struct devrequest *cmd)
543{
544 __u8 data_buf[16];
545 __u8 *bufp = data_buf;
546 int len = 0;
547 int status = 0;
548
549 __u16 bmRType_bReq;
550 __u16 wValue;
551 __u16 wIndex;
552 __u16 wLength;
553
554 if (usb_pipeint(pipe)) {
555 PDEBUG(0, "interrupt transfer unimplemented!\n");
556 return 0;
557 }
558
559 bmRType_bReq = cmd->requesttype | (cmd->request << 8);
560 wValue = le16_to_cpu (cmd->value);
561 wIndex = le16_to_cpu (cmd->index);
562 wLength = le16_to_cpu (cmd->length);
563
564 PDEBUG(5, "submit rh urb, req = %d(%x) val = %#x index = %#x len=%d\n",
565 bmRType_bReq, bmRType_bReq, wValue, wIndex, wLength);
566
567 /* Request Destination:
568 without flags: Device,
569 USB_RECIP_INTERFACE: interface,
570 USB_RECIP_ENDPOINT: endpoint,
571 USB_TYPE_CLASS means HUB here,
572 USB_RECIP_OTHER | USB_TYPE_CLASS almost ever means HUB_PORT here
573 */
574 switch (bmRType_bReq) {
575 case RH_GET_STATUS:
576 *(__u16 *)bufp = cpu_to_le16(1);
577 OK(2);
578
579 case RH_GET_STATUS | USB_RECIP_INTERFACE:
580 *(__u16 *)bufp = cpu_to_le16(0);
581 OK(2);
582
583 case RH_GET_STATUS | USB_RECIP_ENDPOINT:
584 *(__u16 *)bufp = cpu_to_le16(0);
585 OK(2);
586
587 case RH_GET_STATUS | USB_TYPE_CLASS:
588 *(__u32 *)bufp = cpu_to_le32(0);
589 OK(4);
590
591 case RH_GET_STATUS | USB_RECIP_OTHER | USB_TYPE_CLASS:
592 *(__u32 *)bufp = cpu_to_le32(rh_status.wPortChange<<16 | rh_status.wPortStatus);
593 OK(4);
594
595 case RH_CLEAR_FEATURE | USB_RECIP_ENDPOINT:
596 switch (wValue) {
597 case 1:
598 OK(0);
599 }
600 break;
601
602 case RH_CLEAR_FEATURE | USB_TYPE_CLASS:
603 switch (wValue) {
604 case C_HUB_LOCAL_POWER:
605 OK(0);
606
607 case C_HUB_OVER_CURRENT:
608 OK(0);
609 }
610 break;
611
612 case RH_CLEAR_FEATURE | USB_RECIP_OTHER | USB_TYPE_CLASS:
613 switch (wValue) {
614 case USB_PORT_FEAT_ENABLE:
615 rh_status.wPortStatus &= ~USB_PORT_STAT_ENABLE;
616 OK(0);
617
618 case USB_PORT_FEAT_SUSPEND:
619 rh_status.wPortStatus &= ~USB_PORT_STAT_SUSPEND;
620 OK(0);
621
622 case USB_PORT_FEAT_POWER:
623 rh_status.wPortStatus &= ~USB_PORT_STAT_POWER;
624 OK(0);
625
626 case USB_PORT_FEAT_C_CONNECTION:
627 rh_status.wPortChange &= ~USB_PORT_STAT_C_CONNECTION;
628 OK(0);
629
630 case USB_PORT_FEAT_C_ENABLE:
631 rh_status.wPortChange &= ~USB_PORT_STAT_C_ENABLE;
632 OK(0);
633
634 case USB_PORT_FEAT_C_SUSPEND:
635 rh_status.wPortChange &= ~USB_PORT_STAT_C_SUSPEND;
636 OK(0);
637
638 case USB_PORT_FEAT_C_OVER_CURRENT:
639 rh_status.wPortChange &= ~USB_PORT_STAT_C_OVERCURRENT;
640 OK(0);
641
642 case USB_PORT_FEAT_C_RESET:
643 rh_status.wPortChange &= ~USB_PORT_STAT_C_RESET;
644 OK(0);
645 }
646 break;
647
648 case RH_SET_FEATURE | USB_RECIP_OTHER | USB_TYPE_CLASS:
649 switch (wValue) {
650 case USB_PORT_FEAT_SUSPEND:
651 rh_status.wPortStatus |= USB_PORT_STAT_SUSPEND;
652 OK(0);
653
654 case USB_PORT_FEAT_RESET:
655 rh_status.wPortStatus |= USB_PORT_STAT_RESET;
656 rh_status.wPortChange = 0;
657 rh_status.wPortChange |= USB_PORT_STAT_C_RESET;
658 rh_status.wPortStatus &= ~USB_PORT_STAT_RESET;
659 rh_status.wPortStatus |= USB_PORT_STAT_ENABLE;
660 OK(0);
661
662 case USB_PORT_FEAT_POWER:
663 rh_status.wPortStatus |= USB_PORT_STAT_POWER;
664 OK(0);
665
666 case USB_PORT_FEAT_ENABLE:
667 rh_status.wPortStatus |= USB_PORT_STAT_ENABLE;
668 OK(0);
669 }
670 break;
671
672 case RH_SET_ADDRESS:
673 root_hub_devnum = wValue;
674 OK(0);
675
676 case RH_GET_DESCRIPTOR:
677 switch ((wValue & 0xff00) >> 8) {
678 case USB_DT_DEVICE:
679 len = sizeof(sl811_rh_dev_des);
680 bufp = sl811_rh_dev_des;
681 OK(len);
682
683 case USB_DT_CONFIG:
684 len = sizeof(sl811_rh_config_des);
685 bufp = sl811_rh_config_des;
686 OK(len);
687
688 case USB_DT_STRING:
689 len = usb_root_hub_string(wValue & 0xff, (int)(long)0, "SL811HS", data, wLength);
690 if (len > 0) {
691 bufp = data;
692 OK(len);
693 }
694
695 default:
696 status = -32;
697 }
698 break;
699
700 case RH_GET_DESCRIPTOR | USB_TYPE_CLASS:
701 len = sizeof(sl811_rh_hub_des);
702 bufp = sl811_rh_hub_des;
703 OK(len);
704
705 case RH_GET_CONFIGURATION:
706 bufp[0] = 0x01;
707 OK(1);
708
709 case RH_SET_CONFIGURATION:
710 OK(0);
711
712 default:
713 PDEBUG(1, "unsupported root hub command\n");
714 status = -32;
715 }
716
717 len = min(len, buf_len);
718 if (data != bufp)
719 memcpy(data, bufp, len);
720
721 PDEBUG(5, "len = %d, status = %d\n", len, status);
722
723 usb_dev->status = status;
724 usb_dev->act_len = len;
725
726 return status == 0 ? len : status;
727}
728
729#endif /* CONFIG_USB_SL811HS */
"Das U-Boot" Source Tree