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5cf91d6b
WD		 1/*
2 * (C) Copyright 2004
3 * Wolfgang Denk, DENX Software Engineering, [email protected].
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 <[email protected]>
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
953e2062 229static int calc_needed_buswidth(int bytes, int need_preamble)
32877d66 230{
953e2062 231 return !need_preamble ? bytes * 8 + 256 : 8 * 8 * bytes + 2048;
32877d66
WD		 232}
233
953e2062 234static int sl811_send_packet(struct usb_device *dev, unsigned long pipe, __u8 *buffer, int len)
5cf91d6b
WD		 235{
236 __u8 ctrl = SL811_USB_CTRL_ARM | SL811_USB_CTRL_ENABLE;
2729af9d 237 __u16 status = 0;
953e2062
WD		 238 int err = 0, time_start = get_timer(0);
239 int need_preamble = !(rh_status.wPortStatus & USB_PORT_STAT_LOW_SPEED) &&
240 usb_pipeslow(pipe);
5cf91d6b
WD		 241
242 if (len > 239)
243 return -1;
244
953e2062 245 if (usb_pipeout(pipe))
5cf91d6b 246 ctrl |= SL811_USB_CTRL_DIR_OUT;
953e2062 247 if (usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)))
5cf91d6b 248 ctrl |= SL811_USB_CTRL_TOGGLE_1;
953e2062
WD		 249 if (need_preamble)
250 ctrl |= SL811_USB_CTRL_PREAMBLE;
02b11f8e 251
2729af9d 252 sl811_write(SL811_INTRSTS, 0xff);
5cf91d6b
WD		 253
254 while (err < 3) {
2729af9d
WD		 255 sl811_write(SL811_ADDR_A, 0x10);
256 sl811_write(SL811_LEN_A, len);
953e2062 257 if (usb_pipeout(pipe) && len)
2729af9d
WD		 258 sl811_write_buf(0x10, buffer, len);
259
953e2062
WD		 260 if (!(rh_status.wPortStatus & USB_PORT_STAT_LOW_SPEED) &&
261 sl811_read(SL811_SOFCNTDIV)*64 < calc_needed_buswidth(len, need_preamble))
5cf91d6b
WD		 262 ctrl |= SL811_USB_CTRL_SOF;
263 else
264 ctrl &= ~SL811_USB_CTRL_SOF;
2729af9d 265
5cf91d6b 266 sl811_write(SL811_CTRL_A, ctrl);
2729af9d 267 while (!(sl811_read(SL811_INTRSTS) & SL811_INTR_DONE_A)) {
953e2062 268 if (5*CFG_HZ < get_timer(time_start)) {
2729af9d
WD		 269 printf("USB transmit timed out\n");
270 return -USB_ST_CRC_ERR;
271 }
272 }
5cf91d6b
WD		 273
274 sl811_write(SL811_INTRSTS, 0xff);
275 status = sl811_read(SL811_STS_A);
276
277 if (status & SL811_USB_STS_ACK) {
278 int remainder = sl811_read(SL811_CNT_A);
279 if (remainder) {
280 PDEBUG(0, "usb transfer remainder = %d\n", remainder);
281 len -= remainder;
282 }
953e2062 283 if (usb_pipein(pipe) && len)
5cf91d6b
WD		 284 sl811_read_buf(0x10, buffer, len);
285 return len;
286 }
287
288 if ((status & SL811_USB_STS_NAK) == SL811_USB_STS_NAK)
289 continue;
290
291 PDEBUG(0, "usb transfer error %#x\n", (int)status);
292 err++;
293 }
294
2729af9d
WD		 295 err = 0;
296
297 if (status & SL811_USB_STS_ERROR)
298 err |= USB_ST_BUF_ERR;
299 if (status & SL811_USB_STS_TIMEOUT)
300 err |= USB_ST_CRC_ERR;
301 if (status & SL811_USB_STS_STALL)
302 err |= USB_ST_STALLED;
303
304 return -err;
5cf91d6b
WD		 305}
306
307int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
308 int len)
309{
310 int dir_out = usb_pipeout(pipe);
311 int ep = usb_pipeendpoint(pipe);
5cf91d6b
WD		 312 int max = usb_maxpacket(dev, pipe);
313 int done = 0;
314
315 PDEBUG(7, "dev = %ld pipe = %ld buf = %p size = %d dir_out = %d\n",
316 usb_pipedevice(pipe), usb_pipeendpoint(pipe), buffer, len, dir_out);
317
318 dev->status = 0;
319
320 sl811_write(SL811_DEV_A, usb_pipedevice(pipe));
321 sl811_write(SL811_PIDEP_A, PIDEP(!dir_out ? USB_PID_IN : USB_PID_OUT, ep));
322 while (done < len) {
953e2062 323 int res = sl811_send_packet(dev, pipe, (__u8*)buffer+done,
5cf91d6b
WD		 324 max > len - done ? len - done : max);
325 if (res < 0) {
2729af9d 326 dev->status = -res;
5cf91d6b
WD		 327 return res;
328 }
329
330 if (!dir_out && res < max) /* short packet */
331 break;
332
333 done += res;
334 usb_dotoggle(dev, ep, dir_out);
335 }
336
337 dev->act_len = done;
338
339 return 0;
340}
341
342int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
343 int len,struct devrequest *setup)
344{
345 int done = 0;
346 int devnum = usb_pipedevice(pipe);
953e2062 347 int ep = usb_pipeendpoint(pipe);
5cf91d6b
WD		 348
349 dev->status = 0;
350
351 if (devnum == root_hub_devnum)
352 return sl811_rh_submit_urb(dev, pipe, buffer, len, setup);
353
953e2062
WD		 354 PDEBUG(7, "dev = %d pipe = %ld buf = %p size = %d rt = %#x req = %#x bus = %i\n",
355 devnum, ep, buffer, len, (int)setup->requesttype,
356 (int)setup->request, sl811_read(SL811_SOFCNTDIV)*64);
5cf91d6b
WD		 357
358 sl811_write(SL811_DEV_A, devnum);
953e2062 359 sl811_write(SL811_PIDEP_A, PIDEP(USB_PID_SETUP, ep));
5cf91d6b 360 /* setup phase */
953e2062
WD		 361 usb_settoggle(dev, ep, 1, 0);
362 if (sl811_send_packet(dev, usb_sndctrlpipe(dev, ep),
363 (__u8*)setup, sizeof(*setup)) == sizeof(*setup)) {
364 int dir_in = usb_pipein(pipe);
5cf91d6b
WD		 365 int max = usb_maxpacket(dev, pipe);
366
367 /* data phase */
368 sl811_write(SL811_PIDEP_A,
953e2062
WD		 369 PIDEP(dir_in ? USB_PID_IN : USB_PID_OUT, ep));
370 usb_settoggle(dev, ep, usb_pipeout(pipe), 1);
5cf91d6b 371 while (done < len) {
953e2062 372 int res = sl811_send_packet(dev, pipe, (__u8*)buffer+done,
5cf91d6b 373 max > len - done ? len - done : max);
2729af9d 374 if (res < 0) {
953e2062 375 PDEBUG(0, "status data failed!\n");
2729af9d
WD		 376 dev->status = -res;
377 return 0;
378 }
5cf91d6b 379 done += res;
953e2062 380 usb_dotoggle(dev, ep, usb_pipeout(pipe));
5cf91d6b
WD		 381 if (dir_in && res < max) /* short packet */
382 break;
5cf91d6b
WD		 383 }
384
385 /* status phase */
386 sl811_write(SL811_PIDEP_A,
953e2062
WD		 387 PIDEP(!dir_in ? USB_PID_IN : USB_PID_OUT, ep));
388 usb_settoggle(dev, ep, !usb_pipeout(pipe), 1);
02b11f8e
WD		 389 if (sl811_send_packet(dev,
390 !dir_in ? usb_rcvctrlpipe(dev, ep) :
391 usb_sndctrlpipe(dev, ep),
953e2062 392 0, 0) < 0) {
5cf91d6b
WD		 393 PDEBUG(0, "status phase failed!\n");
394 dev->status = -1;
395 }
396 } else {
397 PDEBUG(0, "setup phase failed!\n");
398 dev->status = -1;
399 }
400
401 dev->act_len = done;
402
403 return done;
404}
405
406int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
407 int len, int interval)
408{
2729af9d 409 PDEBUG(0, "dev = %p pipe = %#lx buf = %p size = %d int = %d\n", dev, pipe,
5cf91d6b
WD		 410 buffer, len, interval);
411 return -1;
412}
413
414/*
415 * SL811 Virtual Root Hub
416 */
417
418/* Device descriptor */
419static __u8 sl811_rh_dev_des[] =
420{
421 0x12, /* __u8 bLength; */
422 0x01, /* __u8 bDescriptorType; Device */
423 0x10, /* __u16 bcdUSB; v1.1 */
424 0x01,
425 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
426 0x00, /* __u8 bDeviceSubClass; */
427 0x00, /* __u8 bDeviceProtocol; */
428 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
429 0x00, /* __u16 idVendor; */
430 0x00,
431 0x00, /* __u16 idProduct; */
432 0x00,
433 0x00, /* __u16 bcdDevice; */
434 0x00,
435 0x00, /* __u8 iManufacturer; */
436 0x02, /* __u8 iProduct; */
437 0x01, /* __u8 iSerialNumber; */
438 0x01 /* __u8 bNumConfigurations; */
439};
440
441/* Configuration descriptor */
442static __u8 sl811_rh_config_des[] =
443{
444 0x09, /* __u8 bLength; */
445 0x02, /* __u8 bDescriptorType; Configuration */
446 0x19, /* __u16 wTotalLength; */
447 0x00,
448 0x01, /* __u8 bNumInterfaces; */
449 0x01, /* __u8 bConfigurationValue; */
450 0x00, /* __u8 iConfiguration; */
451 0x40, /* __u8 bmAttributes;
452 Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup,
453 4..0: resvd */
454 0x00, /* __u8 MaxPower; */
455
456 /* interface */
457 0x09, /* __u8 if_bLength; */
458 0x04, /* __u8 if_bDescriptorType; Interface */
459 0x00, /* __u8 if_bInterfaceNumber; */
460 0x00, /* __u8 if_bAlternateSetting; */
461 0x01, /* __u8 if_bNumEndpoints; */
462 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */
463 0x00, /* __u8 if_bInterfaceSubClass; */
464 0x00, /* __u8 if_bInterfaceProtocol; */
465 0x00, /* __u8 if_iInterface; */
466
467 /* endpoint */
468 0x07, /* __u8 ep_bLength; */
469 0x05, /* __u8 ep_bDescriptorType; Endpoint */
470 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
471 0x03, /* __u8 ep_bmAttributes; Interrupt */
472 0x08, /* __u16 ep_wMaxPacketSize; */
473 0x00,
474 0xff /* __u8 ep_bInterval; 255 ms */
475};
476
477/* root hub class descriptor*/
478static __u8 sl811_rh_hub_des[] =
479{
480 0x09, /* __u8 bLength; */
481 0x29, /* __u8 bDescriptorType; Hub-descriptor */
482 0x01, /* __u8 bNbrPorts; */
483 0x00, /* __u16 wHubCharacteristics; */
484 0x00,
485 0x50, /* __u8 bPwrOn2pwrGood; 2ms */
486 0x00, /* __u8 bHubContrCurrent; 0 mA */
487 0xfc, /* __u8 DeviceRemovable; *** 7 Ports max *** */
488 0xff /* __u8 PortPwrCtrlMask; *** 7 ports max *** */
489};
490
491/*
492 * helper routine for returning string descriptors in UTF-16LE
493 * input can actually be ISO-8859-1; ASCII is its 7-bit subset
494 */
495static int ascii2utf (char *s, u8 *utf, int utfmax)
496{
497 int retval;
498
499 for (retval = 0; *s && utfmax > 1; utfmax -= 2, retval += 2) {
500 *utf++ = *s++;
501 *utf++ = 0;
502 }
503 return retval;
504}
505
506/*
507 * root_hub_string is used by each host controller's root hub code,
508 * so that they're identified consistently throughout the system.
509 */
32877d66 510static int usb_root_hub_string (int id, int serial, char *type, __u8 *data, int len)
5cf91d6b
WD		 511{
512 char buf [30];
513
514 /* assert (len > (2 * (sizeof (buf) + 1)));
515 assert (strlen (type) <= 8);*/
516
517 /* language ids */
518 if (id == 0) {
953e2062 519 *data++ = 4; *data++ = 3; /* 4 bytes data */
5cf91d6b
WD		 520 *data++ = 0; *data++ = 0; /* some language id */
521 return 4;
522
523 /* serial number */
524 } else if (id == 1) {
953e2062 525 sprintf (buf, "%#x", serial);
5cf91d6b
WD		 526
527 /* product description */
528 } else if (id == 2) {
529 sprintf (buf, "USB %s Root Hub", type);
530
531 /* id 3 == vendor description */
532
533 /* unsupported IDs --> "stall" */
534 } else
535 return 0;
536
953e2062
WD		 537 ascii2utf (buf, data + 2, len - 2);
538 data [0] = 2 + strlen(buf) * 2;
5cf91d6b
WD		 539 data [1] = 3;
540 return data [0];
541}
542
543/* helper macro */
544#define OK(x) len = (x); break
545
546/*
547 * This function handles all USB request to the the virtual root hub
548 */
549static int sl811_rh_submit_urb(struct usb_device *usb_dev, unsigned long pipe,
550 void *data, int buf_len, struct devrequest *cmd)
551{
552 __u8 data_buf[16];
553 __u8 *bufp = data_buf;
554 int len = 0;
555 int status = 0;
556
557 __u16 bmRType_bReq;
558 __u16 wValue;
559 __u16 wIndex;
560 __u16 wLength;
561
562 if (usb_pipeint(pipe)) {
563 PDEBUG(0, "interrupt transfer unimplemented!\n");
564 return 0;
565 }
566
567 bmRType_bReq = cmd->requesttype | (cmd->request << 8);
568 wValue = le16_to_cpu (cmd->value);
569 wIndex = le16_to_cpu (cmd->index);
570 wLength = le16_to_cpu (cmd->length);
571
572 PDEBUG(5, "submit rh urb, req = %d(%x) val = %#x index = %#x len=%d\n",
573 bmRType_bReq, bmRType_bReq, wValue, wIndex, wLength);
574
575 /* Request Destination:
576 without flags: Device,
577 USB_RECIP_INTERFACE: interface,
578 USB_RECIP_ENDPOINT: endpoint,
579 USB_TYPE_CLASS means HUB here,
580 USB_RECIP_OTHER | USB_TYPE_CLASS almost ever means HUB_PORT here
581 */
582 switch (bmRType_bReq) {
583 case RH_GET_STATUS:
584 *(__u16 *)bufp = cpu_to_le16(1);
585 OK(2);
586
587 case RH_GET_STATUS | USB_RECIP_INTERFACE:
588 *(__u16 *)bufp = cpu_to_le16(0);
589 OK(2);
590
591 case RH_GET_STATUS | USB_RECIP_ENDPOINT:
592 *(__u16 *)bufp = cpu_to_le16(0);
593 OK(2);
594
595 case RH_GET_STATUS | USB_TYPE_CLASS:
596 *(__u32 *)bufp = cpu_to_le32(0);
597 OK(4);
598
599 case RH_GET_STATUS | USB_RECIP_OTHER | USB_TYPE_CLASS:
600 *(__u32 *)bufp = cpu_to_le32(rh_status.wPortChange<<16 | rh_status.wPortStatus);
601 OK(4);
602
603 case RH_CLEAR_FEATURE | USB_RECIP_ENDPOINT:
604 switch (wValue) {
605 case 1:
606 OK(0);
607 }
608 break;
609
610 case RH_CLEAR_FEATURE | USB_TYPE_CLASS:
611 switch (wValue) {
612 case C_HUB_LOCAL_POWER:
613 OK(0);
614
615 case C_HUB_OVER_CURRENT:
616 OK(0);
617 }
618 break;
619
620 case RH_CLEAR_FEATURE | USB_RECIP_OTHER | USB_TYPE_CLASS:
621 switch (wValue) {
622 case USB_PORT_FEAT_ENABLE:
623 rh_status.wPortStatus &= ~USB_PORT_STAT_ENABLE;
624 OK(0);
625
626 case USB_PORT_FEAT_SUSPEND:
627 rh_status.wPortStatus &= ~USB_PORT_STAT_SUSPEND;
628 OK(0);
629
630 case USB_PORT_FEAT_POWER:
631 rh_status.wPortStatus &= ~USB_PORT_STAT_POWER;
632 OK(0);
633
634 case USB_PORT_FEAT_C_CONNECTION:
635 rh_status.wPortChange &= ~USB_PORT_STAT_C_CONNECTION;
636 OK(0);
637
638 case USB_PORT_FEAT_C_ENABLE:
639 rh_status.wPortChange &= ~USB_PORT_STAT_C_ENABLE;
640 OK(0);
641
642 case USB_PORT_FEAT_C_SUSPEND:
643 rh_status.wPortChange &= ~USB_PORT_STAT_C_SUSPEND;
644 OK(0);
645
646 case USB_PORT_FEAT_C_OVER_CURRENT:
647 rh_status.wPortChange &= ~USB_PORT_STAT_C_OVERCURRENT;
648 OK(0);
649
650 case USB_PORT_FEAT_C_RESET:
651 rh_status.wPortChange &= ~USB_PORT_STAT_C_RESET;
652 OK(0);
653 }
654 break;
655
656 case RH_SET_FEATURE | USB_RECIP_OTHER | USB_TYPE_CLASS:
657 switch (wValue) {
658 case USB_PORT_FEAT_SUSPEND:
659 rh_status.wPortStatus |= USB_PORT_STAT_SUSPEND;
660 OK(0);
661
662 case USB_PORT_FEAT_RESET:
663 rh_status.wPortStatus |= USB_PORT_STAT_RESET;
664 rh_status.wPortChange = 0;
665 rh_status.wPortChange |= USB_PORT_STAT_C_RESET;
666 rh_status.wPortStatus &= ~USB_PORT_STAT_RESET;
667 rh_status.wPortStatus |= USB_PORT_STAT_ENABLE;
668 OK(0);
669
670 case USB_PORT_FEAT_POWER:
671 rh_status.wPortStatus |= USB_PORT_STAT_POWER;
672 OK(0);
673
674 case USB_PORT_FEAT_ENABLE:
675 rh_status.wPortStatus |= USB_PORT_STAT_ENABLE;
676 OK(0);
677 }
678 break;
679
680 case RH_SET_ADDRESS:
681 root_hub_devnum = wValue;
682 OK(0);
683
684 case RH_GET_DESCRIPTOR:
685 switch ((wValue & 0xff00) >> 8) {
686 case USB_DT_DEVICE:
687 len = sizeof(sl811_rh_dev_des);
688 bufp = sl811_rh_dev_des;
689 OK(len);
690
691 case USB_DT_CONFIG:
692 len = sizeof(sl811_rh_config_des);
693 bufp = sl811_rh_config_des;
694 OK(len);
695
696 case USB_DT_STRING:
697 len = usb_root_hub_string(wValue & 0xff, (int)(long)0, "SL811HS", data, wLength);
698 if (len > 0) {
699 bufp = data;
700 OK(len);
701 }
702
703 default:
704 status = -32;
705 }
706 break;
707
708 case RH_GET_DESCRIPTOR | USB_TYPE_CLASS:
709 len = sizeof(sl811_rh_hub_des);
710 bufp = sl811_rh_hub_des;
711 OK(len);
712
713 case RH_GET_CONFIGURATION:
714 bufp[0] = 0x01;
715 OK(1);
716
717 case RH_SET_CONFIGURATION:
718 OK(0);
719
720 default:
721 PDEBUG(1, "unsupported root hub command\n");
722 status = -32;
723 }
724
725 len = min(len, buf_len);
726 if (data != bufp)
727 memcpy(data, bufp, len);
728
729 PDEBUG(5, "len = %d, status = %d\n", len, status);
730
731 usb_dev->status = status;
732 usb_dev->act_len = len;
733
734 return status == 0 ? len : status;
735}
736
737#endif /* CONFIG_USB_SL811HS */
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