]>
Commit | Line | Data |
---|---|---|
affae2bf | 1 | /* |
affae2bf | 2 | * Most of this source has been derived from the Linux USB |
460c322f WD |
3 | * project: |
4 | * (C) Copyright Linus Torvalds 1999 | |
5 | * (C) Copyright Johannes Erdfelt 1999-2001 | |
6 | * (C) Copyright Andreas Gal 1999 | |
7 | * (C) Copyright Gregory P. Smith 1999 | |
8 | * (C) Copyright Deti Fliegl 1999 (new USB architecture) | |
9 | * (C) Copyright Randy Dunlap 2000 | |
10 | * (C) Copyright David Brownell 2000 (kernel hotplug, usb_device_id) | |
11 | * (C) Copyright Yggdrasil Computing, Inc. 2000 | |
12 | * (usb_device_id matching changes by Adam J. Richter) | |
13 | * | |
14 | * Adapted for U-Boot: | |
15 | * (C) Copyright 2001 Denis Peter, MPL AG Switzerland | |
affae2bf | 16 | * |
1a459660 | 17 | * SPDX-License-Identifier: GPL-2.0+ |
affae2bf WD |
18 | */ |
19 | ||
affae2bf WD |
20 | /* |
21 | * How it works: | |
22 | * | |
23 | * Since this is a bootloader, the devices will not be automatic | |
24 | * (re)configured on hotplug, but after a restart of the USB the | |
25 | * device should work. | |
26 | * | |
27 | * For each transfer (except "Interrupt") we wait for completion. | |
28 | */ | |
29 | #include <common.h> | |
30 | #include <command.h> | |
95fbfe42 | 31 | #include <dm.h> |
cf92e05c | 32 | #include <memalign.h> |
affae2bf | 33 | #include <asm/processor.h> |
66cf6410 | 34 | #include <linux/compiler.h> |
9c998aa8 | 35 | #include <linux/ctype.h> |
c918261c | 36 | #include <asm/byteorder.h> |
b2fb47f1 | 37 | #include <asm/unaligned.h> |
97b9eb9e | 38 | #include <errno.h> |
affae2bf | 39 | #include <usb.h> |
affae2bf | 40 | |
cd0a9de6 WD |
41 | #define USB_BUFSIZ 512 |
42 | ||
affae2bf | 43 | static int asynch_allowed; |
e51aae38 BS |
44 | char usb_started; /* flag for the started/stopped USB status */ |
45 | ||
95fbfe42 SG |
46 | #ifndef CONFIG_DM_USB |
47 | static struct usb_device usb_dev[USB_MAX_DEVICE]; | |
48 | static int dev_index; | |
49 | ||
93c2582f LS |
50 | #ifndef CONFIG_USB_MAX_CONTROLLER_COUNT |
51 | #define CONFIG_USB_MAX_CONTROLLER_COUNT 1 | |
52 | #endif | |
affae2bf | 53 | |
affae2bf WD |
54 | /*************************************************************************** |
55 | * Init USB Device | |
56 | */ | |
affae2bf WD |
57 | int usb_init(void) |
58 | { | |
93c2582f LS |
59 | void *ctrl; |
60 | struct usb_device *dev; | |
61 | int i, start_index = 0; | |
d906bbc2 | 62 | int controllers_initialized = 0; |
97b9eb9e | 63 | int ret; |
affae2bf | 64 | |
6f5794a6 RB |
65 | dev_index = 0; |
66 | asynch_allowed = 1; | |
affae2bf | 67 | usb_hub_reset(); |
93c2582f LS |
68 | |
69 | /* first make all devices unknown */ | |
70 | for (i = 0; i < USB_MAX_DEVICE; i++) { | |
71 | memset(&usb_dev[i], 0, sizeof(struct usb_device)); | |
72 | usb_dev[i].devnum = -1; | |
73 | } | |
74 | ||
affae2bf | 75 | /* init low_level USB */ |
93c2582f LS |
76 | for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) { |
77 | /* init low_level USB */ | |
78 | printf("USB%d: ", i); | |
97b9eb9e MV |
79 | ret = usb_lowlevel_init(i, USB_INIT_HOST, &ctrl); |
80 | if (ret == -ENODEV) { /* No such device. */ | |
81 | puts("Port not available.\n"); | |
d906bbc2 | 82 | controllers_initialized++; |
97b9eb9e MV |
83 | continue; |
84 | } | |
85 | ||
86 | if (ret) { /* Other error. */ | |
93c2582f LS |
87 | puts("lowlevel init failed\n"); |
88 | continue; | |
89 | } | |
90 | /* | |
91 | * lowlevel init is OK, now scan the bus for devices | |
92 | * i.e. search HUBs and configure them | |
93 | */ | |
d906bbc2 | 94 | controllers_initialized++; |
93c2582f LS |
95 | start_index = dev_index; |
96 | printf("scanning bus %d for devices... ", i); | |
79b58887 SG |
97 | ret = usb_alloc_new_device(ctrl, &dev); |
98 | if (ret) | |
8879be88 PK |
99 | break; |
100 | ||
93c2582f LS |
101 | /* |
102 | * device 0 is always present | |
103 | * (root hub, so let it analyze) | |
104 | */ | |
8879be88 PK |
105 | ret = usb_new_device(dev); |
106 | if (ret) | |
79b58887 | 107 | usb_free_device(dev->controller); |
93c2582f | 108 | |
8879be88 | 109 | if (start_index == dev_index) { |
93c2582f | 110 | puts("No USB Device found\n"); |
8879be88 PK |
111 | continue; |
112 | } else { | |
93c2582f LS |
113 | printf("%d USB Device(s) found\n", |
114 | dev_index - start_index); | |
8879be88 | 115 | } |
93c2582f | 116 | |
e51aae38 | 117 | usb_started = 1; |
93c2582f LS |
118 | } |
119 | ||
ceb4972a | 120 | debug("scan end\n"); |
93c2582f | 121 | /* if we were not able to find at least one working bus, bail out */ |
d906bbc2 | 122 | if (controllers_initialized == 0) |
93c2582f | 123 | puts("USB error: all controllers failed lowlevel init\n"); |
93c2582f | 124 | |
5a80b344 | 125 | return usb_started ? 0 : -ENODEV; |
affae2bf WD |
126 | } |
127 | ||
128 | /****************************************************************************** | |
129 | * Stop USB this stops the LowLevel Part and deregisters USB devices. | |
130 | */ | |
131 | int usb_stop(void) | |
132 | { | |
93c2582f | 133 | int i; |
eba1f2fc RB |
134 | |
135 | if (usb_started) { | |
136 | asynch_allowed = 1; | |
137 | usb_started = 0; | |
138 | usb_hub_reset(); | |
93c2582f LS |
139 | |
140 | for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) { | |
141 | if (usb_lowlevel_stop(i)) | |
142 | printf("failed to stop USB controller %d\n", i); | |
143 | } | |
eba1f2fc | 144 | } |
93c2582f LS |
145 | |
146 | return 0; | |
affae2bf WD |
147 | } |
148 | ||
08f3bb0b VP |
149 | /****************************************************************************** |
150 | * Detect if a USB device has been plugged or unplugged. | |
151 | */ | |
152 | int usb_detect_change(void) | |
153 | { | |
154 | int i, j; | |
155 | int change = 0; | |
156 | ||
157 | for (j = 0; j < USB_MAX_DEVICE; j++) { | |
158 | for (i = 0; i < usb_dev[j].maxchild; i++) { | |
159 | struct usb_port_status status; | |
160 | ||
161 | if (usb_get_port_status(&usb_dev[j], i + 1, | |
162 | &status) < 0) | |
163 | /* USB request failed */ | |
164 | continue; | |
165 | ||
166 | if (le16_to_cpu(status.wPortChange) & | |
167 | USB_PORT_STAT_C_CONNECTION) | |
168 | change++; | |
169 | } | |
170 | } | |
171 | ||
172 | return change; | |
173 | } | |
174 | ||
affae2bf WD |
175 | /* |
176 | * disables the asynch behaviour of the control message. This is used for data | |
177 | * transfers that uses the exclusiv access to the control and bulk messages. | |
89d48367 | 178 | * Returns the old value so it can be restored later. |
affae2bf | 179 | */ |
89d48367 | 180 | int usb_disable_asynch(int disable) |
affae2bf | 181 | { |
89d48367 SG |
182 | int old_value = asynch_allowed; |
183 | ||
6f5794a6 | 184 | asynch_allowed = !disable; |
89d48367 | 185 | return old_value; |
affae2bf | 186 | } |
95fbfe42 | 187 | #endif /* !CONFIG_DM_USB */ |
affae2bf WD |
188 | |
189 | ||
190 | /*------------------------------------------------------------------- | |
191 | * Message wrappers. | |
192 | * | |
193 | */ | |
194 | ||
195 | /* | |
196 | * submits an Interrupt Message | |
197 | */ | |
198 | int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe, | |
6f5794a6 | 199 | void *buffer, int transfer_len, int interval) |
affae2bf | 200 | { |
6f5794a6 | 201 | return submit_int_msg(dev, pipe, buffer, transfer_len, interval); |
affae2bf WD |
202 | } |
203 | ||
204 | /* | |
205 | * submits a control message and waits for comletion (at least timeout * 1ms) | |
206 | * If timeout is 0, we don't wait for completion (used as example to set and | |
207 | * clear keyboards LEDs). For data transfers, (storage transfers) we don't | |
208 | * allow control messages with 0 timeout, by previousely resetting the flag | |
209 | * asynch_allowed (usb_disable_asynch(1)). | |
a6f70a3d | 210 | * returns the transferred length if OK or -1 if error. The transferred length |
affae2bf WD |
211 | * and the current status are stored in the dev->act_len and dev->status. |
212 | */ | |
213 | int usb_control_msg(struct usb_device *dev, unsigned int pipe, | |
214 | unsigned char request, unsigned char requesttype, | |
215 | unsigned short value, unsigned short index, | |
216 | void *data, unsigned short size, int timeout) | |
217 | { | |
f5766139 | 218 | ALLOC_CACHE_ALIGN_BUFFER(struct devrequest, setup_packet, 1); |
651d95c8 | 219 | int err; |
e159e486 | 220 | |
6f5794a6 RB |
221 | if ((timeout == 0) && (!asynch_allowed)) { |
222 | /* request for a asynch control pipe is not allowed */ | |
5a80b344 | 223 | return -EINVAL; |
6f5794a6 | 224 | } |
9c998aa8 | 225 | |
affae2bf | 226 | /* set setup command */ |
f5766139 PS |
227 | setup_packet->requesttype = requesttype; |
228 | setup_packet->request = request; | |
229 | setup_packet->value = cpu_to_le16(value); | |
230 | setup_packet->index = cpu_to_le16(index); | |
231 | setup_packet->length = cpu_to_le16(size); | |
ceb4972a VG |
232 | debug("usb_control_msg: request: 0x%X, requesttype: 0x%X, " \ |
233 | "value 0x%X index 0x%X length 0x%X\n", | |
234 | request, requesttype, value, index, size); | |
6f5794a6 | 235 | dev->status = USB_ST_NOT_PROC; /*not yet processed */ |
affae2bf | 236 | |
651d95c8 HG |
237 | err = submit_control_msg(dev, pipe, data, size, setup_packet); |
238 | if (err < 0) | |
239 | return err; | |
6f5794a6 | 240 | if (timeout == 0) |
affae2bf | 241 | return (int)size; |
6f5794a6 | 242 | |
84d36b30 RB |
243 | /* |
244 | * Wait for status to update until timeout expires, USB driver | |
245 | * interrupt handler may set the status when the USB operation has | |
246 | * been completed. | |
247 | */ | |
248 | while (timeout--) { | |
249 | if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) | |
250 | break; | |
5b84dd67 | 251 | mdelay(1); |
48867208 | 252 | } |
84d36b30 RB |
253 | if (dev->status) |
254 | return -1; | |
48867208 RB |
255 | |
256 | return dev->act_len; | |
84d36b30 | 257 | |
affae2bf WD |
258 | } |
259 | ||
260 | /*------------------------------------------------------------------- | |
261 | * submits bulk message, and waits for completion. returns 0 if Ok or | |
5a80b344 | 262 | * negative if Error. |
affae2bf WD |
263 | * synchronous behavior |
264 | */ | |
265 | int usb_bulk_msg(struct usb_device *dev, unsigned int pipe, | |
266 | void *data, int len, int *actual_length, int timeout) | |
267 | { | |
268 | if (len < 0) | |
5a80b344 | 269 | return -EINVAL; |
6f5794a6 | 270 | dev->status = USB_ST_NOT_PROC; /*not yet processed */ |
fd06028d | 271 | if (submit_bulk_msg(dev, pipe, data, len) < 0) |
5a80b344 | 272 | return -EIO; |
6f5794a6 RB |
273 | while (timeout--) { |
274 | if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) | |
affae2bf | 275 | break; |
5b84dd67 | 276 | mdelay(1); |
affae2bf | 277 | } |
6f5794a6 RB |
278 | *actual_length = dev->act_len; |
279 | if (dev->status == 0) | |
affae2bf WD |
280 | return 0; |
281 | else | |
5a80b344 | 282 | return -EIO; |
affae2bf WD |
283 | } |
284 | ||
285 | ||
286 | /*------------------------------------------------------------------- | |
287 | * Max Packet stuff | |
288 | */ | |
289 | ||
290 | /* | |
291 | * returns the max packet size, depending on the pipe direction and | |
292 | * the configurations values | |
293 | */ | |
6f5794a6 | 294 | int usb_maxpacket(struct usb_device *dev, unsigned long pipe) |
affae2bf | 295 | { |
6f5794a6 RB |
296 | /* direction is out -> use emaxpacket out */ |
297 | if ((pipe & USB_DIR_IN) == 0) | |
de39f8c1 | 298 | return dev->epmaxpacketout[((pipe>>15) & 0xf)]; |
affae2bf | 299 | else |
de39f8c1 | 300 | return dev->epmaxpacketin[((pipe>>15) & 0xf)]; |
affae2bf WD |
301 | } |
302 | ||
5e8baf87 MV |
303 | /* |
304 | * The routine usb_set_maxpacket_ep() is extracted from the loop of routine | |
be19d324 RB |
305 | * usb_set_maxpacket(), because the optimizer of GCC 4.x chokes on this routine |
306 | * when it is inlined in 1 single routine. What happens is that the register r3 | |
307 | * is used as loop-count 'i', but gets overwritten later on. | |
308 | * This is clearly a compiler bug, but it is easier to workaround it here than | |
309 | * to update the compiler (Occurs with at least several GCC 4.{1,2},x | |
310 | * CodeSourcery compilers like e.g. 2007q3, 2008q1, 2008q3 lite editions on ARM) | |
5e8baf87 MV |
311 | * |
312 | * NOTE: Similar behaviour was observed with GCC4.6 on ARMv5. | |
be19d324 | 313 | */ |
66cf6410 | 314 | static void noinline |
5e8baf87 | 315 | usb_set_maxpacket_ep(struct usb_device *dev, int if_idx, int ep_idx) |
be19d324 RB |
316 | { |
317 | int b; | |
5e8baf87 | 318 | struct usb_endpoint_descriptor *ep; |
b2fb47f1 | 319 | u16 ep_wMaxPacketSize; |
5e8baf87 MV |
320 | |
321 | ep = &dev->config.if_desc[if_idx].ep_desc[ep_idx]; | |
be19d324 RB |
322 | |
323 | b = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; | |
b2fb47f1 | 324 | ep_wMaxPacketSize = get_unaligned(&ep->wMaxPacketSize); |
be19d324 RB |
325 | |
326 | if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == | |
327 | USB_ENDPOINT_XFER_CONTROL) { | |
328 | /* Control => bidirectional */ | |
b2fb47f1 TR |
329 | dev->epmaxpacketout[b] = ep_wMaxPacketSize; |
330 | dev->epmaxpacketin[b] = ep_wMaxPacketSize; | |
ceb4972a VG |
331 | debug("##Control EP epmaxpacketout/in[%d] = %d\n", |
332 | b, dev->epmaxpacketin[b]); | |
be19d324 RB |
333 | } else { |
334 | if ((ep->bEndpointAddress & 0x80) == 0) { | |
335 | /* OUT Endpoint */ | |
b2fb47f1 TR |
336 | if (ep_wMaxPacketSize > dev->epmaxpacketout[b]) { |
337 | dev->epmaxpacketout[b] = ep_wMaxPacketSize; | |
ceb4972a VG |
338 | debug("##EP epmaxpacketout[%d] = %d\n", |
339 | b, dev->epmaxpacketout[b]); | |
be19d324 RB |
340 | } |
341 | } else { | |
342 | /* IN Endpoint */ | |
b2fb47f1 TR |
343 | if (ep_wMaxPacketSize > dev->epmaxpacketin[b]) { |
344 | dev->epmaxpacketin[b] = ep_wMaxPacketSize; | |
ceb4972a VG |
345 | debug("##EP epmaxpacketin[%d] = %d\n", |
346 | b, dev->epmaxpacketin[b]); | |
be19d324 RB |
347 | } |
348 | } /* if out */ | |
349 | } /* if control */ | |
350 | } | |
351 | ||
affae2bf WD |
352 | /* |
353 | * set the max packed value of all endpoints in the given configuration | |
354 | */ | |
c08b1b26 | 355 | static int usb_set_maxpacket(struct usb_device *dev) |
affae2bf | 356 | { |
be19d324 | 357 | int i, ii; |
affae2bf | 358 | |
8f8bd565 TR |
359 | for (i = 0; i < dev->config.desc.bNumInterfaces; i++) |
360 | for (ii = 0; ii < dev->config.if_desc[i].desc.bNumEndpoints; ii++) | |
5e8baf87 | 361 | usb_set_maxpacket_ep(dev, i, ii); |
affae2bf | 362 | |
affae2bf WD |
363 | return 0; |
364 | } | |
365 | ||
366 | /******************************************************************************* | |
367 | * Parse the config, located in buffer, and fills the dev->config structure. | |
368 | * Note that all little/big endian swapping are done automatically. | |
eaf3e613 | 369 | * (wTotalLength has already been swapped and sanitized when it was read.) |
affae2bf | 370 | */ |
c08b1b26 MV |
371 | static int usb_parse_config(struct usb_device *dev, |
372 | unsigned char *buffer, int cfgno) | |
affae2bf WD |
373 | { |
374 | struct usb_descriptor_header *head; | |
7455af41 | 375 | int index, ifno, epno, curr_if_num; |
b2fb47f1 | 376 | u16 ep_wMaxPacketSize; |
605bd75a | 377 | struct usb_interface *if_desc = NULL; |
7455af41 BS |
378 | |
379 | ifno = -1; | |
380 | epno = -1; | |
381 | curr_if_num = -1; | |
382 | ||
383 | dev->configno = cfgno; | |
384 | head = (struct usb_descriptor_header *) &buffer[0]; | |
6f5794a6 RB |
385 | if (head->bDescriptorType != USB_DT_CONFIG) { |
386 | printf(" ERROR: NOT USB_CONFIG_DESC %x\n", | |
387 | head->bDescriptorType); | |
5a80b344 | 388 | return -EINVAL; |
affae2bf | 389 | } |
eaf3e613 JW |
390 | if (head->bLength != USB_DT_CONFIG_SIZE) { |
391 | printf("ERROR: Invalid USB CFG length (%d)\n", head->bLength); | |
5a80b344 | 392 | return -EINVAL; |
eaf3e613 JW |
393 | } |
394 | memcpy(&dev->config, head, USB_DT_CONFIG_SIZE); | |
7455af41 | 395 | dev->config.no_of_if = 0; |
affae2bf | 396 | |
8f8bd565 | 397 | index = dev->config.desc.bLength; |
6f5794a6 RB |
398 | /* Ok the first entry must be a configuration entry, |
399 | * now process the others */ | |
7455af41 | 400 | head = (struct usb_descriptor_header *) &buffer[index]; |
eaf3e613 | 401 | while (index + 1 < dev->config.desc.wTotalLength && head->bLength) { |
6f5794a6 RB |
402 | switch (head->bDescriptorType) { |
403 | case USB_DT_INTERFACE: | |
eaf3e613 JW |
404 | if (head->bLength != USB_DT_INTERFACE_SIZE) { |
405 | printf("ERROR: Invalid USB IF length (%d)\n", | |
406 | head->bLength); | |
407 | break; | |
408 | } | |
409 | if (index + USB_DT_INTERFACE_SIZE > | |
410 | dev->config.desc.wTotalLength) { | |
411 | puts("USB IF descriptor overflowed buffer!\n"); | |
412 | break; | |
413 | } | |
6f5794a6 | 414 | if (((struct usb_interface_descriptor *) \ |
eaf3e613 | 415 | head)->bInterfaceNumber != curr_if_num) { |
6f5794a6 RB |
416 | /* this is a new interface, copy new desc */ |
417 | ifno = dev->config.no_of_if; | |
eaf3e613 JW |
418 | if (ifno >= USB_MAXINTERFACES) { |
419 | puts("Too many USB interfaces!\n"); | |
420 | /* try to go on with what we have */ | |
5a80b344 | 421 | return -EINVAL; |
eaf3e613 | 422 | } |
605bd75a | 423 | if_desc = &dev->config.if_desc[ifno]; |
6f5794a6 | 424 | dev->config.no_of_if++; |
eaf3e613 JW |
425 | memcpy(if_desc, head, |
426 | USB_DT_INTERFACE_SIZE); | |
605bd75a VG |
427 | if_desc->no_of_ep = 0; |
428 | if_desc->num_altsetting = 1; | |
6f5794a6 | 429 | curr_if_num = |
605bd75a | 430 | if_desc->desc.bInterfaceNumber; |
6f5794a6 RB |
431 | } else { |
432 | /* found alternate setting for the interface */ | |
605bd75a VG |
433 | if (ifno >= 0) { |
434 | if_desc = &dev->config.if_desc[ifno]; | |
435 | if_desc->num_altsetting++; | |
436 | } | |
6f5794a6 RB |
437 | } |
438 | break; | |
439 | case USB_DT_ENDPOINT: | |
2f0eb2ac BM |
440 | if (head->bLength != USB_DT_ENDPOINT_SIZE && |
441 | head->bLength != USB_DT_ENDPOINT_AUDIO_SIZE) { | |
eaf3e613 JW |
442 | printf("ERROR: Invalid USB EP length (%d)\n", |
443 | head->bLength); | |
444 | break; | |
445 | } | |
2f0eb2ac | 446 | if (index + head->bLength > |
eaf3e613 JW |
447 | dev->config.desc.wTotalLength) { |
448 | puts("USB EP descriptor overflowed buffer!\n"); | |
449 | break; | |
450 | } | |
451 | if (ifno < 0) { | |
452 | puts("Endpoint descriptor out of order!\n"); | |
453 | break; | |
454 | } | |
6f5794a6 | 455 | epno = dev->config.if_desc[ifno].no_of_ep; |
605bd75a | 456 | if_desc = &dev->config.if_desc[ifno]; |
447b9cdf | 457 | if (epno >= USB_MAXENDPOINTS) { |
eaf3e613 JW |
458 | printf("Interface %d has too many endpoints!\n", |
459 | if_desc->desc.bInterfaceNumber); | |
5a80b344 | 460 | return -EINVAL; |
eaf3e613 | 461 | } |
6f5794a6 | 462 | /* found an endpoint */ |
605bd75a | 463 | if_desc->no_of_ep++; |
eaf3e613 JW |
464 | memcpy(&if_desc->ep_desc[epno], head, |
465 | USB_DT_ENDPOINT_SIZE); | |
b2fb47f1 TR |
466 | ep_wMaxPacketSize = get_unaligned(&dev->config.\ |
467 | if_desc[ifno].\ | |
468 | ep_desc[epno].\ | |
469 | wMaxPacketSize); | |
470 | put_unaligned(le16_to_cpu(ep_wMaxPacketSize), | |
471 | &dev->config.\ | |
472 | if_desc[ifno].\ | |
473 | ep_desc[epno].\ | |
474 | wMaxPacketSize); | |
ceb4972a | 475 | debug("if %d, ep %d\n", ifno, epno); |
6f5794a6 | 476 | break; |
6497c667 | 477 | case USB_DT_SS_ENDPOINT_COMP: |
eaf3e613 JW |
478 | if (head->bLength != USB_DT_SS_EP_COMP_SIZE) { |
479 | printf("ERROR: Invalid USB EPC length (%d)\n", | |
480 | head->bLength); | |
481 | break; | |
482 | } | |
483 | if (index + USB_DT_SS_EP_COMP_SIZE > | |
484 | dev->config.desc.wTotalLength) { | |
485 | puts("USB EPC descriptor overflowed buffer!\n"); | |
486 | break; | |
487 | } | |
488 | if (ifno < 0 || epno < 0) { | |
489 | puts("EPC descriptor out of order!\n"); | |
490 | break; | |
491 | } | |
6497c667 | 492 | if_desc = &dev->config.if_desc[ifno]; |
eaf3e613 JW |
493 | memcpy(&if_desc->ss_ep_comp_desc[epno], head, |
494 | USB_DT_SS_EP_COMP_SIZE); | |
6497c667 | 495 | break; |
6f5794a6 RB |
496 | default: |
497 | if (head->bLength == 0) | |
5a80b344 | 498 | return -EINVAL; |
6f5794a6 | 499 | |
ceb4972a VG |
500 | debug("unknown Description Type : %x\n", |
501 | head->bDescriptorType); | |
6f5794a6 | 502 | |
ceb4972a | 503 | #ifdef DEBUG |
6f5794a6 | 504 | { |
fad2e1b0 | 505 | unsigned char *ch = (unsigned char *)head; |
ceb4972a VG |
506 | int i; |
507 | ||
6f5794a6 | 508 | for (i = 0; i < head->bLength; i++) |
ceb4972a VG |
509 | debug("%02X ", *ch++); |
510 | debug("\n\n\n"); | |
6f5794a6 | 511 | } |
ceb4972a | 512 | #endif |
6f5794a6 | 513 | break; |
affae2bf | 514 | } |
7455af41 BS |
515 | index += head->bLength; |
516 | head = (struct usb_descriptor_header *)&buffer[index]; | |
affae2bf | 517 | } |
5a80b344 | 518 | return 0; |
affae2bf WD |
519 | } |
520 | ||
521 | /*********************************************************************** | |
522 | * Clears an endpoint | |
523 | * endp: endpoint number in bits 0-3; | |
524 | * direction flag in bit 7 (1 = IN, 0 = OUT) | |
525 | */ | |
526 | int usb_clear_halt(struct usb_device *dev, int pipe) | |
527 | { | |
528 | int result; | |
9c998aa8 | 529 | int endp = usb_pipeendpoint(pipe)|(usb_pipein(pipe)<<7); |
affae2bf WD |
530 | |
531 | result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
6f5794a6 RB |
532 | USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 0, |
533 | endp, NULL, 0, USB_CNTL_TIMEOUT * 3); | |
affae2bf WD |
534 | |
535 | /* don't clear if failed */ | |
536 | if (result < 0) | |
537 | return result; | |
9c998aa8 | 538 | |
095b8a37 | 539 | /* |
9c998aa8 WD |
540 | * NOTE: we do not get status and verify reset was successful |
541 | * as some devices are reported to lock up upon this check.. | |
542 | */ | |
543 | ||
affae2bf | 544 | usb_endpoint_running(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)); |
9c998aa8 | 545 | |
affae2bf WD |
546 | /* toggle is reset on clear */ |
547 | usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 0); | |
548 | return 0; | |
549 | } | |
550 | ||
551 | ||
552 | /********************************************************************** | |
553 | * get_descriptor type | |
554 | */ | |
c08b1b26 | 555 | static int usb_get_descriptor(struct usb_device *dev, unsigned char type, |
6f5794a6 | 556 | unsigned char index, void *buf, int size) |
affae2bf | 557 | { |
8319aeb1 MY |
558 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
559 | USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, | |
560 | (type << 8) + index, 0, buf, size, | |
561 | USB_CNTL_TIMEOUT); | |
affae2bf WD |
562 | } |
563 | ||
564 | /********************************************************************** | |
c75f57fb | 565 | * gets len of configuration cfgno |
affae2bf | 566 | */ |
c75f57fb | 567 | int usb_get_configuration_len(struct usb_device *dev, int cfgno) |
affae2bf | 568 | { |
53677ef1 | 569 | int result; |
c75f57fb | 570 | ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, 9); |
c60795f4 | 571 | struct usb_config_descriptor *config; |
affae2bf | 572 | |
c60795f4 | 573 | config = (struct usb_config_descriptor *)&buffer[0]; |
48867208 RB |
574 | result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 9); |
575 | if (result < 9) { | |
affae2bf | 576 | if (result < 0) |
6f5794a6 RB |
577 | printf("unable to get descriptor, error %lX\n", |
578 | dev->status); | |
affae2bf | 579 | else |
6f5794a6 | 580 | printf("config descriptor too short " \ |
48867208 | 581 | "(expected %i, got %i)\n", 9, result); |
5a80b344 | 582 | return -EIO; |
affae2bf | 583 | } |
c75f57fb SB |
584 | return le16_to_cpu(config->wTotalLength); |
585 | } | |
affae2bf | 586 | |
c75f57fb SB |
587 | /********************************************************************** |
588 | * gets configuration cfgno and store it in the buffer | |
589 | */ | |
590 | int usb_get_configuration_no(struct usb_device *dev, int cfgno, | |
591 | unsigned char *buffer, int length) | |
592 | { | |
593 | int result; | |
594 | struct usb_config_descriptor *config; | |
cd0a9de6 | 595 | |
c75f57fb | 596 | config = (struct usb_config_descriptor *)&buffer[0]; |
eaf3e613 | 597 | result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, length); |
c75f57fb SB |
598 | debug("get_conf_no %d Result %d, wLength %d\n", cfgno, result, |
599 | le16_to_cpu(config->wTotalLength)); | |
600 | config->wTotalLength = result; /* validated, with CPU byte order */ | |
eaf3e613 | 601 | |
affae2bf WD |
602 | return result; |
603 | } | |
604 | ||
605 | /******************************************************************** | |
606 | * set address of a device to the value in dev->devnum. | |
607 | * This can only be done by addressing the device via the default address (0) | |
608 | */ | |
c08b1b26 | 609 | static int usb_set_address(struct usb_device *dev) |
affae2bf | 610 | { |
ceb4972a | 611 | debug("set address %d\n", dev->devnum); |
8319aeb1 MY |
612 | |
613 | return usb_control_msg(dev, usb_snddefctrl(dev), USB_REQ_SET_ADDRESS, | |
614 | 0, (dev->devnum), 0, NULL, 0, USB_CNTL_TIMEOUT); | |
affae2bf WD |
615 | } |
616 | ||
617 | /******************************************************************** | |
618 | * set interface number to interface | |
619 | */ | |
620 | int usb_set_interface(struct usb_device *dev, int interface, int alternate) | |
621 | { | |
8f8bd565 | 622 | struct usb_interface *if_face = NULL; |
affae2bf WD |
623 | int ret, i; |
624 | ||
8f8bd565 TR |
625 | for (i = 0; i < dev->config.desc.bNumInterfaces; i++) { |
626 | if (dev->config.if_desc[i].desc.bInterfaceNumber == interface) { | |
affae2bf WD |
627 | if_face = &dev->config.if_desc[i]; |
628 | break; | |
629 | } | |
630 | } | |
631 | if (!if_face) { | |
632 | printf("selecting invalid interface %d", interface); | |
5a80b344 | 633 | return -EINVAL; |
affae2bf | 634 | } |
7455af41 BS |
635 | /* |
636 | * We should return now for devices with only one alternate setting. | |
6f5794a6 RB |
637 | * According to 9.4.10 of the Universal Serial Bus Specification |
638 | * Revision 2.0 such devices can return with a STALL. This results in | |
639 | * some USB sticks timeouting during initialization and then being | |
640 | * unusable in U-Boot. | |
7455af41 BS |
641 | */ |
642 | if (if_face->num_altsetting == 1) | |
643 | return 0; | |
affae2bf | 644 | |
6f5794a6 RB |
645 | ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
646 | USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE, | |
647 | alternate, interface, NULL, 0, | |
648 | USB_CNTL_TIMEOUT * 5); | |
649 | if (ret < 0) | |
affae2bf WD |
650 | return ret; |
651 | ||
affae2bf WD |
652 | return 0; |
653 | } | |
654 | ||
655 | /******************************************************************** | |
656 | * set configuration number to configuration | |
657 | */ | |
c08b1b26 | 658 | static int usb_set_configuration(struct usb_device *dev, int configuration) |
affae2bf WD |
659 | { |
660 | int res; | |
ceb4972a | 661 | debug("set configuration %d\n", configuration); |
affae2bf | 662 | /* set setup command */ |
6f5794a6 RB |
663 | res = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
664 | USB_REQ_SET_CONFIGURATION, 0, | |
665 | configuration, 0, | |
666 | NULL, 0, USB_CNTL_TIMEOUT); | |
667 | if (res == 0) { | |
affae2bf WD |
668 | dev->toggle[0] = 0; |
669 | dev->toggle[1] = 0; | |
670 | return 0; | |
6f5794a6 | 671 | } else |
5a80b344 | 672 | return -EIO; |
affae2bf WD |
673 | } |
674 | ||
675 | /******************************************************************** | |
676 | * set protocol to protocol | |
677 | */ | |
678 | int usb_set_protocol(struct usb_device *dev, int ifnum, int protocol) | |
679 | { | |
680 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
681 | USB_REQ_SET_PROTOCOL, USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
682 | protocol, ifnum, NULL, 0, USB_CNTL_TIMEOUT); | |
683 | } | |
684 | ||
685 | /******************************************************************** | |
686 | * set idle | |
687 | */ | |
688 | int usb_set_idle(struct usb_device *dev, int ifnum, int duration, int report_id) | |
689 | { | |
690 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
691 | USB_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
692 | (duration << 8) | report_id, ifnum, NULL, 0, USB_CNTL_TIMEOUT); | |
693 | } | |
694 | ||
695 | /******************************************************************** | |
696 | * get report | |
697 | */ | |
6f5794a6 RB |
698 | int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type, |
699 | unsigned char id, void *buf, int size) | |
affae2bf WD |
700 | { |
701 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
6f5794a6 RB |
702 | USB_REQ_GET_REPORT, |
703 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
704 | (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT); | |
affae2bf WD |
705 | } |
706 | ||
707 | /******************************************************************** | |
708 | * get class descriptor | |
709 | */ | |
710 | int usb_get_class_descriptor(struct usb_device *dev, int ifnum, | |
711 | unsigned char type, unsigned char id, void *buf, int size) | |
712 | { | |
713 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
714 | USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN, | |
715 | (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT); | |
716 | } | |
717 | ||
718 | /******************************************************************** | |
719 | * get string index in buffer | |
720 | */ | |
c08b1b26 | 721 | static int usb_get_string(struct usb_device *dev, unsigned short langid, |
6f5794a6 | 722 | unsigned char index, void *buf, int size) |
affae2bf | 723 | { |
9c998aa8 WD |
724 | int i; |
725 | int result; | |
726 | ||
727 | for (i = 0; i < 3; ++i) { | |
728 | /* some devices are flaky */ | |
729 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
730 | USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, | |
095b8a37 | 731 | (USB_DT_STRING << 8) + index, langid, buf, size, |
9c998aa8 WD |
732 | USB_CNTL_TIMEOUT); |
733 | ||
734 | if (result > 0) | |
735 | break; | |
095b8a37 WD |
736 | } |
737 | ||
9c998aa8 WD |
738 | return result; |
739 | } | |
740 | ||
741 | ||
742 | static void usb_try_string_workarounds(unsigned char *buf, int *length) | |
743 | { | |
744 | int newlength, oldlength = *length; | |
745 | ||
746 | for (newlength = 2; newlength + 1 < oldlength; newlength += 2) | |
747 | if (!isprint(buf[newlength]) || buf[newlength + 1]) | |
748 | break; | |
749 | ||
750 | if (newlength > 2) { | |
751 | buf[0] = newlength; | |
752 | *length = newlength; | |
753 | } | |
affae2bf WD |
754 | } |
755 | ||
9c998aa8 WD |
756 | |
757 | static int usb_string_sub(struct usb_device *dev, unsigned int langid, | |
758 | unsigned int index, unsigned char *buf) | |
759 | { | |
760 | int rc; | |
761 | ||
762 | /* Try to read the string descriptor by asking for the maximum | |
763 | * possible number of bytes */ | |
764 | rc = usb_get_string(dev, langid, index, buf, 255); | |
765 | ||
766 | /* If that failed try to read the descriptor length, then | |
767 | * ask for just that many bytes */ | |
768 | if (rc < 2) { | |
769 | rc = usb_get_string(dev, langid, index, buf, 2); | |
770 | if (rc == 2) | |
771 | rc = usb_get_string(dev, langid, index, buf, buf[0]); | |
772 | } | |
773 | ||
774 | if (rc >= 2) { | |
775 | if (!buf[0] && !buf[1]) | |
776 | usb_try_string_workarounds(buf, &rc); | |
777 | ||
778 | /* There might be extra junk at the end of the descriptor */ | |
779 | if (buf[0] < rc) | |
780 | rc = buf[0]; | |
781 | ||
782 | rc = rc - (rc & 1); /* force a multiple of two */ | |
783 | } | |
784 | ||
785 | if (rc < 2) | |
5a80b344 | 786 | rc = -EINVAL; |
9c998aa8 WD |
787 | |
788 | return rc; | |
789 | } | |
790 | ||
791 | ||
affae2bf WD |
792 | /******************************************************************** |
793 | * usb_string: | |
794 | * Get string index and translate it to ascii. | |
795 | * returns string length (> 0) or error (< 0) | |
796 | */ | |
797 | int usb_string(struct usb_device *dev, int index, char *buf, size_t size) | |
798 | { | |
f5766139 | 799 | ALLOC_CACHE_ALIGN_BUFFER(unsigned char, mybuf, USB_BUFSIZ); |
affae2bf WD |
800 | unsigned char *tbuf; |
801 | int err; | |
802 | unsigned int u, idx; | |
803 | ||
804 | if (size <= 0 || !buf || !index) | |
5a80b344 | 805 | return -EINVAL; |
affae2bf | 806 | buf[0] = 0; |
d0ff51ba | 807 | tbuf = &mybuf[0]; |
affae2bf WD |
808 | |
809 | /* get langid for strings if it's not yet known */ | |
810 | if (!dev->have_langid) { | |
9c998aa8 | 811 | err = usb_string_sub(dev, 0, 0, tbuf); |
affae2bf | 812 | if (err < 0) { |
ceb4972a VG |
813 | debug("error getting string descriptor 0 " \ |
814 | "(error=%lx)\n", dev->status); | |
5a80b344 | 815 | return -EIO; |
affae2bf | 816 | } else if (tbuf[0] < 4) { |
ceb4972a | 817 | debug("string descriptor 0 too short\n"); |
5a80b344 | 818 | return -EIO; |
affae2bf WD |
819 | } else { |
820 | dev->have_langid = -1; | |
6f5794a6 | 821 | dev->string_langid = tbuf[2] | (tbuf[3] << 8); |
affae2bf | 822 | /* always use the first langid listed */ |
ceb4972a VG |
823 | debug("USB device number %d default " \ |
824 | "language ID 0x%x\n", | |
825 | dev->devnum, dev->string_langid); | |
affae2bf WD |
826 | } |
827 | } | |
cd0a9de6 | 828 | |
9c998aa8 | 829 | err = usb_string_sub(dev, dev->string_langid, index, tbuf); |
affae2bf WD |
830 | if (err < 0) |
831 | return err; | |
9c998aa8 | 832 | |
affae2bf WD |
833 | size--; /* leave room for trailing NULL char in output buffer */ |
834 | for (idx = 0, u = 2; u < err; u += 2) { | |
835 | if (idx >= size) | |
836 | break; | |
837 | if (tbuf[u+1]) /* high byte */ | |
838 | buf[idx++] = '?'; /* non-ASCII character */ | |
839 | else | |
840 | buf[idx++] = tbuf[u]; | |
841 | } | |
842 | buf[idx] = 0; | |
843 | err = idx; | |
844 | return err; | |
845 | } | |
846 | ||
847 | ||
848 | /******************************************************************** | |
849 | * USB device handling: | |
850 | * the USB device are static allocated [USB_MAX_DEVICE]. | |
851 | */ | |
852 | ||
95fbfe42 | 853 | #ifndef CONFIG_DM_USB |
affae2bf WD |
854 | |
855 | /* returns a pointer to the device with the index [index]. | |
856 | * if the device is not assigned (dev->devnum==-1) returns NULL | |
857 | */ | |
6f5794a6 | 858 | struct usb_device *usb_get_dev_index(int index) |
affae2bf | 859 | { |
6f5794a6 | 860 | if (usb_dev[index].devnum == -1) |
affae2bf WD |
861 | return NULL; |
862 | else | |
863 | return &usb_dev[index]; | |
864 | } | |
865 | ||
79b58887 | 866 | int usb_alloc_new_device(struct udevice *controller, struct usb_device **devp) |
affae2bf WD |
867 | { |
868 | int i; | |
ceb4972a | 869 | debug("New Device %d\n", dev_index); |
6f5794a6 RB |
870 | if (dev_index == USB_MAX_DEVICE) { |
871 | printf("ERROR, too many USB Devices, max=%d\n", USB_MAX_DEVICE); | |
79b58887 | 872 | return -ENOSPC; |
affae2bf | 873 | } |
6f5794a6 RB |
874 | /* default Address is 0, real addresses start with 1 */ |
875 | usb_dev[dev_index].devnum = dev_index + 1; | |
876 | usb_dev[dev_index].maxchild = 0; | |
877 | for (i = 0; i < USB_MAXCHILDREN; i++) | |
878 | usb_dev[dev_index].children[i] = NULL; | |
879 | usb_dev[dev_index].parent = NULL; | |
c7e3b2b5 | 880 | usb_dev[dev_index].controller = controller; |
affae2bf | 881 | dev_index++; |
79b58887 SG |
882 | *devp = &usb_dev[dev_index - 1]; |
883 | ||
884 | return 0; | |
affae2bf WD |
885 | } |
886 | ||
359439d2 MC |
887 | /* |
888 | * Free the newly created device node. | |
889 | * Called in error cases where configuring a newly attached | |
890 | * device fails for some reason. | |
891 | */ | |
79b58887 | 892 | void usb_free_device(struct udevice *controller) |
359439d2 MC |
893 | { |
894 | dev_index--; | |
ceb4972a | 895 | debug("Freeing device node: %d\n", dev_index); |
359439d2 MC |
896 | memset(&usb_dev[dev_index], 0, sizeof(struct usb_device)); |
897 | usb_dev[dev_index].devnum = -1; | |
898 | } | |
affae2bf | 899 | |
5853e133 VG |
900 | /* |
901 | * XHCI issues Enable Slot command and thereafter | |
902 | * allocates device contexts. Provide a weak alias | |
903 | * function for the purpose, so that XHCI overrides it | |
904 | * and EHCI/OHCI just work out of the box. | |
905 | */ | |
906 | __weak int usb_alloc_device(struct usb_device *udev) | |
907 | { | |
908 | return 0; | |
909 | } | |
95fbfe42 | 910 | #endif /* !CONFIG_DM_USB */ |
862e75c0 | 911 | |
682c9f8d | 912 | static int usb_hub_port_reset(struct usb_device *dev, struct usb_device *hub) |
862e75c0 | 913 | { |
3ed9eb93 | 914 | if (!hub) |
8802f563 | 915 | usb_reset_root_port(dev); |
862e75c0 SG |
916 | |
917 | return 0; | |
918 | } | |
919 | ||
0ed27905 | 920 | static int get_descriptor_len(struct usb_device *dev, int len, int expect_len) |
affae2bf | 921 | { |
128fcac0 | 922 | __maybe_unused struct usb_device_descriptor *desc; |
f5766139 | 923 | ALLOC_CACHE_ALIGN_BUFFER(unsigned char, tmpbuf, USB_BUFSIZ); |
0ed27905 SG |
924 | int err; |
925 | ||
926 | desc = (struct usb_device_descriptor *)tmpbuf; | |
927 | ||
928 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, len); | |
929 | if (err < expect_len) { | |
930 | if (err < 0) { | |
931 | printf("unable to get device descriptor (error=%d)\n", | |
932 | err); | |
933 | return err; | |
934 | } else { | |
935 | printf("USB device descriptor short read (expected %i, got %i)\n", | |
936 | expect_len, err); | |
937 | return -EIO; | |
938 | } | |
939 | } | |
940 | memcpy(&dev->descriptor, tmpbuf, sizeof(dev->descriptor)); | |
941 | ||
942 | return 0; | |
943 | } | |
944 | ||
945 | static int usb_setup_descriptor(struct usb_device *dev, bool do_read) | |
946 | { | |
53d8aa0f SG |
947 | /* |
948 | * This is a Windows scheme of initialization sequence, with double | |
48867208 | 949 | * reset of the device (Linux uses the same sequence) |
c9e8436b RB |
950 | * Some equipment is said to work only with such init sequence; this |
951 | * patch is based on the work by Alan Stern: | |
de39f8c1 MT |
952 | * http://sourceforge.net/mailarchive/forum.php? |
953 | * thread_id=5729457&forum_id=5398 | |
9c998aa8 | 954 | */ |
9c998aa8 | 955 | |
53d8aa0f SG |
956 | /* |
957 | * send 64-byte GET-DEVICE-DESCRIPTOR request. Since the descriptor is | |
9c998aa8 WD |
958 | * only 18 bytes long, this will terminate with a short packet. But if |
959 | * the maxpacket size is 8 or 16 the device may be waiting to transmit | |
2b338ef4 HG |
960 | * some more, or keeps on retransmitting the 8 byte header. |
961 | */ | |
9c998aa8 | 962 | |
2b338ef4 HG |
963 | if (dev->speed == USB_SPEED_LOW) { |
964 | dev->descriptor.bMaxPacketSize0 = 8; | |
965 | dev->maxpacketsize = PACKET_SIZE_8; | |
966 | } else { | |
967 | dev->descriptor.bMaxPacketSize0 = 64; | |
968 | dev->maxpacketsize = PACKET_SIZE_64; | |
969 | } | |
970 | dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0; | |
971 | dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0; | |
48867208 | 972 | |
c008faa7 | 973 | if (do_read && dev->speed == USB_SPEED_FULL) { |
128fcac0 | 974 | int err; |
862e75c0 | 975 | |
128fcac0 | 976 | /* |
c008faa7 BM |
977 | * Validate we've received only at least 8 bytes, not that |
978 | * we've received the entire descriptor. The reasoning is: | |
979 | * - The code only uses fields in the first 8 bytes, so | |
980 | * that's all we need to have fetched at this stage. | |
981 | * - The smallest maxpacket size is 8 bytes. Before we know | |
982 | * the actual maxpacket the device uses, the USB controller | |
983 | * may only accept a single packet. Consequently we are only | |
984 | * guaranteed to receive 1 packet (at least 8 bytes) even in | |
985 | * a non-error case. | |
128fcac0 | 986 | * |
c008faa7 BM |
987 | * At least the DWC2 controller needs to be programmed with |
988 | * the number of packets in addition to the number of bytes. | |
989 | * A request for 64 bytes of data with the maxpacket guessed | |
990 | * as 64 (above) yields a request for 1 packet. | |
128fcac0 | 991 | */ |
0ed27905 SG |
992 | err = get_descriptor_len(dev, 64, 8); |
993 | if (err) | |
994 | return err; | |
9c998aa8 | 995 | } |
48867208 | 996 | |
de39f8c1 | 997 | dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0; |
affae2bf WD |
998 | dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0; |
999 | switch (dev->descriptor.bMaxPacketSize0) { | |
de39f8c1 MT |
1000 | case 8: |
1001 | dev->maxpacketsize = PACKET_SIZE_8; | |
1002 | break; | |
1003 | case 16: | |
1004 | dev->maxpacketsize = PACKET_SIZE_16; | |
1005 | break; | |
1006 | case 32: | |
1007 | dev->maxpacketsize = PACKET_SIZE_32; | |
1008 | break; | |
1009 | case 64: | |
1010 | dev->maxpacketsize = PACKET_SIZE_64; | |
1011 | break; | |
04ee6ee2 | 1012 | default: |
c008faa7 | 1013 | printf("%s: invalid max packet size\n", __func__); |
04ee6ee2 | 1014 | return -EIO; |
affae2bf | 1015 | } |
128fcac0 SG |
1016 | |
1017 | return 0; | |
1018 | } | |
1019 | ||
91398f98 | 1020 | static int usb_prepare_device(struct usb_device *dev, int addr, bool do_read, |
9eb72dd1 | 1021 | struct usb_device *parent) |
128fcac0 | 1022 | { |
91398f98 | 1023 | int err; |
128fcac0 SG |
1024 | |
1025 | /* | |
1026 | * Allocate usb 3.0 device context. | |
1027 | * USB 3.0 (xHCI) protocol tries to allocate device slot | |
1028 | * and related data structures first. This call does that. | |
1029 | * Refer to sec 4.3.2 in xHCI spec rev1.0 | |
1030 | */ | |
91398f98 SG |
1031 | err = usb_alloc_device(dev); |
1032 | if (err) { | |
128fcac0 | 1033 | printf("Cannot allocate device context to get SLOT_ID\n"); |
91398f98 | 1034 | return err; |
128fcac0 | 1035 | } |
128fcac0 SG |
1036 | err = usb_setup_descriptor(dev, do_read); |
1037 | if (err) | |
1038 | return err; | |
682c9f8d | 1039 | err = usb_hub_port_reset(dev, parent); |
128fcac0 SG |
1040 | if (err) |
1041 | return err; | |
1042 | ||
affae2bf WD |
1043 | dev->devnum = addr; |
1044 | ||
1045 | err = usb_set_address(dev); /* set address */ | |
1046 | ||
1047 | if (err < 0) { | |
6f5794a6 RB |
1048 | printf("\n USB device not accepting new address " \ |
1049 | "(error=%lX)\n", dev->status); | |
91398f98 | 1050 | return err; |
affae2bf WD |
1051 | } |
1052 | ||
5b84dd67 | 1053 | mdelay(10); /* Let the SET_ADDRESS settle */ |
affae2bf | 1054 | |
932bb668 BM |
1055 | /* |
1056 | * If we haven't read device descriptor before, read it here | |
1057 | * after device is assigned an address. This is only applicable | |
1058 | * to xHCI so far. | |
1059 | */ | |
1060 | if (!do_read) { | |
1061 | err = usb_setup_descriptor(dev, true); | |
1062 | if (err) | |
1063 | return err; | |
1064 | } | |
1065 | ||
91398f98 SG |
1066 | return 0; |
1067 | } | |
1068 | ||
95fbfe42 | 1069 | int usb_select_config(struct usb_device *dev) |
91398f98 | 1070 | { |
2f1b4302 | 1071 | unsigned char *tmpbuf = NULL; |
0ed27905 | 1072 | int err; |
91398f98 | 1073 | |
0ed27905 SG |
1074 | err = get_descriptor_len(dev, USB_DT_DEVICE_SIZE, USB_DT_DEVICE_SIZE); |
1075 | if (err) | |
1076 | return err; | |
affae2bf | 1077 | |
affae2bf | 1078 | /* correct le values */ |
c918261c CE |
1079 | le16_to_cpus(&dev->descriptor.bcdUSB); |
1080 | le16_to_cpus(&dev->descriptor.idVendor); | |
1081 | le16_to_cpus(&dev->descriptor.idProduct); | |
1082 | le16_to_cpus(&dev->descriptor.bcdDevice); | |
0ed27905 | 1083 | |
ef71290b MV |
1084 | /* |
1085 | * Kingston DT Ultimate 32GB USB 3.0 seems to be extremely sensitive | |
1086 | * about this first Get Descriptor request. If there are any other | |
1087 | * requests in the first microframe, the stick crashes. Wait about | |
1088 | * one microframe duration here (1mS for USB 1.x , 125uS for USB 2.0). | |
1089 | */ | |
1090 | mdelay(1); | |
1091 | ||
affae2bf | 1092 | /* only support for one config for now */ |
c75f57fb SB |
1093 | err = usb_get_configuration_len(dev, 0); |
1094 | if (err >= 0) { | |
1095 | tmpbuf = (unsigned char *)malloc_cache_aligned(err); | |
1096 | if (!tmpbuf) | |
1097 | err = -ENOMEM; | |
1098 | else | |
1099 | err = usb_get_configuration_no(dev, 0, tmpbuf, err); | |
1100 | } | |
8b8d779d VP |
1101 | if (err < 0) { |
1102 | printf("usb_new_device: Cannot read configuration, " \ | |
1103 | "skipping device %04x:%04x\n", | |
1104 | dev->descriptor.idVendor, dev->descriptor.idProduct); | |
c75f57fb | 1105 | free(tmpbuf); |
0ed27905 | 1106 | return err; |
8b8d779d | 1107 | } |
f5766139 | 1108 | usb_parse_config(dev, tmpbuf, 0); |
c75f57fb | 1109 | free(tmpbuf); |
affae2bf | 1110 | usb_set_maxpacket(dev); |
0ed27905 SG |
1111 | /* |
1112 | * we set the default configuration here | |
1113 | * This seems premature. If the driver wants a different configuration | |
1114 | * it will need to select itself. | |
1115 | */ | |
1116 | err = usb_set_configuration(dev, dev->config.desc.bConfigurationValue); | |
1117 | if (err < 0) { | |
6f5794a6 RB |
1118 | printf("failed to set default configuration " \ |
1119 | "len %d, status %lX\n", dev->act_len, dev->status); | |
0ed27905 | 1120 | return err; |
affae2bf | 1121 | } |
f647bf0b MV |
1122 | |
1123 | /* | |
1124 | * Wait until the Set Configuration request gets processed by the | |
1125 | * device. This is required by at least SanDisk Cruzer Pop USB 2.0 | |
1126 | * and Kingston DT Ultimate 32GB USB 3.0 on DWC2 OTG controller. | |
1127 | */ | |
1128 | mdelay(10); | |
1129 | ||
ceb4972a VG |
1130 | debug("new device strings: Mfr=%d, Product=%d, SerialNumber=%d\n", |
1131 | dev->descriptor.iManufacturer, dev->descriptor.iProduct, | |
1132 | dev->descriptor.iSerialNumber); | |
affae2bf WD |
1133 | memset(dev->mf, 0, sizeof(dev->mf)); |
1134 | memset(dev->prod, 0, sizeof(dev->prod)); | |
1135 | memset(dev->serial, 0, sizeof(dev->serial)); | |
1136 | if (dev->descriptor.iManufacturer) | |
6f5794a6 RB |
1137 | usb_string(dev, dev->descriptor.iManufacturer, |
1138 | dev->mf, sizeof(dev->mf)); | |
affae2bf | 1139 | if (dev->descriptor.iProduct) |
6f5794a6 RB |
1140 | usb_string(dev, dev->descriptor.iProduct, |
1141 | dev->prod, sizeof(dev->prod)); | |
affae2bf | 1142 | if (dev->descriptor.iSerialNumber) |
6f5794a6 RB |
1143 | usb_string(dev, dev->descriptor.iSerialNumber, |
1144 | dev->serial, sizeof(dev->serial)); | |
ceb4972a VG |
1145 | debug("Manufacturer %s\n", dev->mf); |
1146 | debug("Product %s\n", dev->prod); | |
1147 | debug("SerialNumber %s\n", dev->serial); | |
0ed27905 SG |
1148 | |
1149 | return 0; | |
1150 | } | |
1151 | ||
95fbfe42 | 1152 | int usb_setup_device(struct usb_device *dev, bool do_read, |
9eb72dd1 | 1153 | struct usb_device *parent) |
0ed27905 SG |
1154 | { |
1155 | int addr; | |
1156 | int ret; | |
1157 | ||
1158 | /* We still haven't set the Address yet */ | |
1159 | addr = dev->devnum; | |
1160 | dev->devnum = 0; | |
1161 | ||
9eb72dd1 | 1162 | ret = usb_prepare_device(dev, addr, do_read, parent); |
0ed27905 SG |
1163 | if (ret) |
1164 | return ret; | |
1165 | ret = usb_select_config(dev); | |
1166 | ||
1167 | return ret; | |
1168 | } | |
1169 | ||
95fbfe42 | 1170 | #ifndef CONFIG_DM_USB |
0ed27905 SG |
1171 | /* |
1172 | * By the time we get here, the device has gotten a new device ID | |
1173 | * and is in the default state. We need to identify the thing and | |
1174 | * get the ball rolling.. | |
1175 | * | |
1176 | * Returns 0 for success, != 0 for error. | |
1177 | */ | |
1178 | int usb_new_device(struct usb_device *dev) | |
1179 | { | |
1180 | bool do_read = true; | |
1181 | int err; | |
1182 | ||
1183 | /* | |
1184 | * XHCI needs to issue a Address device command to setup | |
1185 | * proper device context structures, before it can interact | |
1186 | * with the device. So a get_descriptor will fail before any | |
1187 | * of that is done for XHCI unlike EHCI. | |
1188 | */ | |
0a8cc1a3 | 1189 | #ifdef CONFIG_USB_XHCI_HCD |
0ed27905 SG |
1190 | do_read = false; |
1191 | #endif | |
9eb72dd1 | 1192 | err = usb_setup_device(dev, do_read, dev->parent); |
0ed27905 SG |
1193 | if (err) |
1194 | return err; | |
1195 | ||
1196 | /* Now probe if the device is a hub */ | |
1197 | err = usb_hub_probe(dev, 0); | |
1198 | if (err < 0) | |
1199 | return err; | |
1200 | ||
affae2bf WD |
1201 | return 0; |
1202 | } | |
95fbfe42 | 1203 | #endif |
affae2bf | 1204 | |
16297cfb | 1205 | __weak |
bba67914 | 1206 | int board_usb_init(int index, enum usb_init_type init) |
16297cfb MZ |
1207 | { |
1208 | return 0; | |
1209 | } | |
db378d78 KVA |
1210 | |
1211 | __weak | |
1212 | int board_usb_cleanup(int index, enum usb_init_type init) | |
1213 | { | |
1214 | return 0; | |
1215 | } | |
95fbfe42 SG |
1216 | |
1217 | bool usb_device_has_child_on_port(struct usb_device *parent, int port) | |
1218 | { | |
1219 | #ifdef CONFIG_DM_USB | |
1220 | return false; | |
1221 | #else | |
1222 | return parent->children[port] != NULL; | |
1223 | #endif | |
1224 | } | |
1225 | ||
faa7db24 SB |
1226 | #ifdef CONFIG_DM_USB |
1227 | void usb_find_usb2_hub_address_port(struct usb_device *udev, | |
1228 | uint8_t *hub_address, uint8_t *hub_port) | |
1229 | { | |
1230 | struct udevice *parent; | |
1231 | struct usb_device *uparent, *ttdev; | |
1232 | ||
1233 | /* | |
1234 | * When called from usb-uclass.c: usb_scan_device() udev->dev points | |
1235 | * to the parent udevice, not the actual udevice belonging to the | |
1236 | * udev as the device is not instantiated yet. So when searching | |
1237 | * for the first usb-2 parent start with udev->dev not | |
1238 | * udev->dev->parent . | |
1239 | */ | |
1240 | ttdev = udev; | |
1241 | parent = udev->dev; | |
1242 | uparent = dev_get_parent_priv(parent); | |
1243 | ||
1244 | while (uparent->speed != USB_SPEED_HIGH) { | |
1245 | struct udevice *dev = parent; | |
1246 | ||
1247 | if (device_get_uclass_id(dev->parent) != UCLASS_USB_HUB) { | |
1248 | printf("Error: Cannot find high speed parent of usb-1 device\n"); | |
1249 | *hub_address = 0; | |
1250 | *hub_port = 0; | |
1251 | return; | |
1252 | } | |
1253 | ||
1254 | ttdev = dev_get_parent_priv(dev); | |
1255 | parent = dev->parent; | |
1256 | uparent = dev_get_parent_priv(parent); | |
1257 | } | |
1258 | *hub_address = uparent->devnum; | |
1259 | *hub_port = ttdev->portnr; | |
1260 | } | |
1261 | #else | |
1262 | void usb_find_usb2_hub_address_port(struct usb_device *udev, | |
1263 | uint8_t *hub_address, uint8_t *hub_port) | |
1264 | { | |
1265 | /* Find out the nearest parent which is high speed */ | |
1266 | while (udev->parent->parent != NULL) | |
1267 | if (udev->parent->speed != USB_SPEED_HIGH) { | |
1268 | udev = udev->parent; | |
1269 | } else { | |
1270 | *hub_address = udev->parent->devnum; | |
1271 | *hub_port = udev->portnr; | |
1272 | return; | |
1273 | } | |
1274 | ||
1275 | printf("Error: Cannot find high speed parent of usb-1 device\n"); | |
1276 | *hub_address = 0; | |
1277 | *hub_port = 0; | |
1278 | } | |
1279 | #endif | |
1280 | ||
1281 | ||
affae2bf | 1282 | /* EOF */ |