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wdenkaffae2b2002-08-17 09:36:01 +00001/*
wdenkaffae2b2002-08-17 09:36:01 +00002 *
3 * Most of this source has been derived from the Linux USB
Wolfgang Denk460c3222005-08-04 01:14:12 +02004 * project:
5 * (C) Copyright Linus Torvalds 1999
6 * (C) Copyright Johannes Erdfelt 1999-2001
7 * (C) Copyright Andreas Gal 1999
8 * (C) Copyright Gregory P. Smith 1999
9 * (C) Copyright Deti Fliegl 1999 (new USB architecture)
10 * (C) Copyright Randy Dunlap 2000
11 * (C) Copyright David Brownell 2000 (kernel hotplug, usb_device_id)
12 * (C) Copyright Yggdrasil Computing, Inc. 2000
13 * (usb_device_id matching changes by Adam J. Richter)
14 *
15 * Adapted for U-Boot:
16 * (C) Copyright 2001 Denis Peter, MPL AG Switzerland
wdenkaffae2b2002-08-17 09:36:01 +000017 *
18 * See file CREDITS for list of people who contributed to this
19 * project.
20 *
21 * This program is free software; you can redistribute it and/or
22 * modify it under the terms of the GNU General Public License as
23 * published by the Free Software Foundation; either version 2 of
24 * the License, or (at your option) any later version.
25 *
26 * This program is distributed in the hope that it will be useful,
27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 * GNU General Public License for more details.
30 *
31 * You should have received a copy of the GNU General Public License
32 * along with this program; if not, write to the Free Software
33 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
34 * MA 02111-1307 USA
35 *
36 */
37
wdenkaffae2b2002-08-17 09:36:01 +000038/*
39 * How it works:
40 *
41 * Since this is a bootloader, the devices will not be automatic
42 * (re)configured on hotplug, but after a restart of the USB the
43 * device should work.
44 *
45 * For each transfer (except "Interrupt") we wait for completion.
46 */
47#include <common.h>
48#include <command.h>
49#include <asm/processor.h>
Mike Frysinger66cf6412012-04-04 18:44:53 +000050#include <linux/compiler.h>
Wolfgang Denk9c998aa2005-07-21 11:57:57 +020051#include <linux/ctype.h>
Christian Eggersc9182612008-05-21 22:12:00 +020052#include <asm/byteorder.h>
Tom Rinib2fb47f2011-12-15 08:40:51 -070053#include <asm/unaligned.h>
wdenkaffae2b2002-08-17 09:36:01 +000054
wdenkaffae2b2002-08-17 09:36:01 +000055#include <usb.h>
56#ifdef CONFIG_4xx
Stefan Roese3048bcb2007-10-03 15:01:02 +020057#include <asm/4xx_pci.h>
wdenkaffae2b2002-08-17 09:36:01 +000058#endif
59
Alexander Hollerce297a82011-01-28 12:42:13 +010060#ifdef DEBUG
Marek Vasut88ec8c12011-10-25 11:39:14 +020061#define USB_DEBUG 1
62#define USB_HUB_DEBUG 1
63#else
64#define USB_DEBUG 0
65#define USB_HUB_DEBUG 0
Alexander Hollerce297a82011-01-28 12:42:13 +010066#endif
wdenkaffae2b2002-08-17 09:36:01 +000067
Marek Vasut88ec8c12011-10-25 11:39:14 +020068#define USB_PRINTF(fmt, args...) debug_cond(USB_DEBUG, fmt, ##args)
69#define USB_HUB_PRINTF(fmt, args...) debug_cond(USB_HUB_DEBUG, fmt, ##args)
wdenkaffae2b2002-08-17 09:36:01 +000070
wdenkcd0a9de2004-02-23 20:48:38 +000071#define USB_BUFSIZ 512
72
wdenkaffae2b2002-08-17 09:36:01 +000073static struct usb_device usb_dev[USB_MAX_DEVICE];
74static int dev_index;
wdenkaffae2b2002-08-17 09:36:01 +000075static int asynch_allowed;
wdenkaffae2b2002-08-17 09:36:01 +000076
Bartlomiej Siekae51aae32006-08-03 23:20:13 +020077char usb_started; /* flag for the started/stopped USB status */
78
Lucas Stach93c25822012-09-26 00:14:36 +020079#ifndef CONFIG_USB_MAX_CONTROLLER_COUNT
80#define CONFIG_USB_MAX_CONTROLLER_COUNT 1
81#endif
wdenkaffae2b2002-08-17 09:36:01 +000082
wdenkaffae2b2002-08-17 09:36:01 +000083/***************************************************************************
84 * Init USB Device
85 */
wdenkaffae2b2002-08-17 09:36:01 +000086int usb_init(void)
87{
Lucas Stach93c25822012-09-26 00:14:36 +020088 void *ctrl;
89 struct usb_device *dev;
90 int i, start_index = 0;
wdenkaffae2b2002-08-17 09:36:01 +000091
Remy Bohmer6f5794a2008-09-16 14:55:43 +020092 dev_index = 0;
93 asynch_allowed = 1;
wdenkaffae2b2002-08-17 09:36:01 +000094 usb_hub_reset();
Lucas Stach93c25822012-09-26 00:14:36 +020095
96 /* first make all devices unknown */
97 for (i = 0; i < USB_MAX_DEVICE; i++) {
98 memset(&usb_dev[i], 0, sizeof(struct usb_device));
99 usb_dev[i].devnum = -1;
100 }
101
wdenkaffae2b2002-08-17 09:36:01 +0000102 /* init low_level USB */
Lucas Stach93c25822012-09-26 00:14:36 +0200103 for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) {
104 /* init low_level USB */
105 printf("USB%d: ", i);
106 if (usb_lowlevel_init(i, &ctrl)) {
107 puts("lowlevel init failed\n");
108 continue;
109 }
110 /*
111 * lowlevel init is OK, now scan the bus for devices
112 * i.e. search HUBs and configure them
113 */
114 start_index = dev_index;
115 printf("scanning bus %d for devices... ", i);
116 dev = usb_alloc_new_device(ctrl);
117 /*
118 * device 0 is always present
119 * (root hub, so let it analyze)
120 */
121 if (dev)
122 usb_new_device(dev);
123
124 if (start_index == dev_index)
125 puts("No USB Device found\n");
126 else
127 printf("%d USB Device(s) found\n",
128 dev_index - start_index);
129
Bartlomiej Siekae51aae32006-08-03 23:20:13 +0200130 usb_started = 1;
Lucas Stach93c25822012-09-26 00:14:36 +0200131 }
132
133 USB_PRINTF("scan end\n");
134 /* if we were not able to find at least one working bus, bail out */
135 if (!usb_started) {
136 puts("USB error: all controllers failed lowlevel init\n");
wdenkaffae2b2002-08-17 09:36:01 +0000137 return -1;
138 }
Lucas Stach93c25822012-09-26 00:14:36 +0200139
140 return 0;
wdenkaffae2b2002-08-17 09:36:01 +0000141}
142
143/******************************************************************************
144 * Stop USB this stops the LowLevel Part and deregisters USB devices.
145 */
146int usb_stop(void)
147{
Lucas Stach93c25822012-09-26 00:14:36 +0200148 int i;
Remy Bohmereba1f2f2008-08-20 11:22:02 +0200149
150 if (usb_started) {
151 asynch_allowed = 1;
152 usb_started = 0;
153 usb_hub_reset();
Lucas Stach93c25822012-09-26 00:14:36 +0200154
155 for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) {
156 if (usb_lowlevel_stop(i))
157 printf("failed to stop USB controller %d\n", i);
158 }
Remy Bohmereba1f2f2008-08-20 11:22:02 +0200159 }
Lucas Stach93c25822012-09-26 00:14:36 +0200160
161 return 0;
wdenkaffae2b2002-08-17 09:36:01 +0000162}
163
164/*
165 * disables the asynch behaviour of the control message. This is used for data
166 * transfers that uses the exclusiv access to the control and bulk messages.
Simon Glass89d48362011-02-16 11:14:33 -0800167 * Returns the old value so it can be restored later.
wdenkaffae2b2002-08-17 09:36:01 +0000168 */
Simon Glass89d48362011-02-16 11:14:33 -0800169int usb_disable_asynch(int disable)
wdenkaffae2b2002-08-17 09:36:01 +0000170{
Simon Glass89d48362011-02-16 11:14:33 -0800171 int old_value = asynch_allowed;
172
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200173 asynch_allowed = !disable;
Simon Glass89d48362011-02-16 11:14:33 -0800174 return old_value;
wdenkaffae2b2002-08-17 09:36:01 +0000175}
176
177
178/*-------------------------------------------------------------------
179 * Message wrappers.
180 *
181 */
182
183/*
184 * submits an Interrupt Message
185 */
186int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe,
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200187 void *buffer, int transfer_len, int interval)
wdenkaffae2b2002-08-17 09:36:01 +0000188{
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200189 return submit_int_msg(dev, pipe, buffer, transfer_len, interval);
wdenkaffae2b2002-08-17 09:36:01 +0000190}
191
192/*
193 * submits a control message and waits for comletion (at least timeout * 1ms)
194 * If timeout is 0, we don't wait for completion (used as example to set and
195 * clear keyboards LEDs). For data transfers, (storage transfers) we don't
196 * allow control messages with 0 timeout, by previousely resetting the flag
197 * asynch_allowed (usb_disable_asynch(1)).
198 * returns the transfered length if OK or -1 if error. The transfered length
199 * and the current status are stored in the dev->act_len and dev->status.
200 */
201int usb_control_msg(struct usb_device *dev, unsigned int pipe,
202 unsigned char request, unsigned char requesttype,
203 unsigned short value, unsigned short index,
204 void *data, unsigned short size, int timeout)
205{
Puneet Saxenaf5766132012-04-03 14:56:06 +0530206 ALLOC_CACHE_ALIGN_BUFFER(struct devrequest, setup_packet, 1);
Marek Vasute159e482012-02-13 18:58:18 +0000207
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200208 if ((timeout == 0) && (!asynch_allowed)) {
209 /* request for a asynch control pipe is not allowed */
wdenkaffae2b2002-08-17 09:36:01 +0000210 return -1;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200211 }
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200212
wdenkaffae2b2002-08-17 09:36:01 +0000213 /* set setup command */
Puneet Saxenaf5766132012-04-03 14:56:06 +0530214 setup_packet->requesttype = requesttype;
215 setup_packet->request = request;
216 setup_packet->value = cpu_to_le16(value);
217 setup_packet->index = cpu_to_le16(index);
218 setup_packet->length = cpu_to_le16(size);
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200219 USB_PRINTF("usb_control_msg: request: 0x%X, requesttype: 0x%X, " \
220 "value 0x%X index 0x%X length 0x%X\n",
221 request, requesttype, value, index, size);
222 dev->status = USB_ST_NOT_PROC; /*not yet processed */
wdenkaffae2b2002-08-17 09:36:01 +0000223
Ilya Yanokfd060282012-07-15 04:43:51 +0000224 if (submit_control_msg(dev, pipe, data, size, setup_packet) < 0)
225 return -1;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200226 if (timeout == 0)
wdenkaffae2b2002-08-17 09:36:01 +0000227 return (int)size;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200228
Remy Bohmer84d36b32010-02-01 19:40:47 +0100229 /*
230 * Wait for status to update until timeout expires, USB driver
231 * interrupt handler may set the status when the USB operation has
232 * been completed.
233 */
234 while (timeout--) {
235 if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC))
236 break;
Mike Frysinger5b84dd62012-03-05 13:47:00 +0000237 mdelay(1);
Remy Bohmer48867202008-10-10 10:23:21 +0200238 }
Remy Bohmer84d36b32010-02-01 19:40:47 +0100239 if (dev->status)
240 return -1;
Remy Bohmer48867202008-10-10 10:23:21 +0200241
242 return dev->act_len;
Remy Bohmer84d36b32010-02-01 19:40:47 +0100243
wdenkaffae2b2002-08-17 09:36:01 +0000244}
245
246/*-------------------------------------------------------------------
247 * submits bulk message, and waits for completion. returns 0 if Ok or
248 * -1 if Error.
249 * synchronous behavior
250 */
251int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
252 void *data, int len, int *actual_length, int timeout)
253{
254 if (len < 0)
255 return -1;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200256 dev->status = USB_ST_NOT_PROC; /*not yet processed */
Ilya Yanokfd060282012-07-15 04:43:51 +0000257 if (submit_bulk_msg(dev, pipe, data, len) < 0)
258 return -1;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200259 while (timeout--) {
260 if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC))
wdenkaffae2b2002-08-17 09:36:01 +0000261 break;
Mike Frysinger5b84dd62012-03-05 13:47:00 +0000262 mdelay(1);
wdenkaffae2b2002-08-17 09:36:01 +0000263 }
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200264 *actual_length = dev->act_len;
265 if (dev->status == 0)
wdenkaffae2b2002-08-17 09:36:01 +0000266 return 0;
267 else
268 return -1;
269}
270
271
272/*-------------------------------------------------------------------
273 * Max Packet stuff
274 */
275
276/*
277 * returns the max packet size, depending on the pipe direction and
278 * the configurations values
279 */
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200280int usb_maxpacket(struct usb_device *dev, unsigned long pipe)
wdenkaffae2b2002-08-17 09:36:01 +0000281{
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200282 /* direction is out -> use emaxpacket out */
283 if ((pipe & USB_DIR_IN) == 0)
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100284 return dev->epmaxpacketout[((pipe>>15) & 0xf)];
wdenkaffae2b2002-08-17 09:36:01 +0000285 else
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100286 return dev->epmaxpacketin[((pipe>>15) & 0xf)];
wdenkaffae2b2002-08-17 09:36:01 +0000287}
288
Marek Vasut5e8baf82011-11-05 23:35:12 +0100289/*
290 * The routine usb_set_maxpacket_ep() is extracted from the loop of routine
Remy Bohmerbe19d322008-09-16 14:55:42 +0200291 * usb_set_maxpacket(), because the optimizer of GCC 4.x chokes on this routine
292 * when it is inlined in 1 single routine. What happens is that the register r3
293 * is used as loop-count 'i', but gets overwritten later on.
294 * This is clearly a compiler bug, but it is easier to workaround it here than
295 * to update the compiler (Occurs with at least several GCC 4.{1,2},x
296 * CodeSourcery compilers like e.g. 2007q3, 2008q1, 2008q3 lite editions on ARM)
Marek Vasut5e8baf82011-11-05 23:35:12 +0100297 *
298 * NOTE: Similar behaviour was observed with GCC4.6 on ARMv5.
Remy Bohmerbe19d322008-09-16 14:55:42 +0200299 */
Mike Frysinger66cf6412012-04-04 18:44:53 +0000300static void noinline
Marek Vasut5e8baf82011-11-05 23:35:12 +0100301usb_set_maxpacket_ep(struct usb_device *dev, int if_idx, int ep_idx)
Remy Bohmerbe19d322008-09-16 14:55:42 +0200302{
303 int b;
Marek Vasut5e8baf82011-11-05 23:35:12 +0100304 struct usb_endpoint_descriptor *ep;
Tom Rinib2fb47f2011-12-15 08:40:51 -0700305 u16 ep_wMaxPacketSize;
Marek Vasut5e8baf82011-11-05 23:35:12 +0100306
307 ep = &dev->config.if_desc[if_idx].ep_desc[ep_idx];
Remy Bohmerbe19d322008-09-16 14:55:42 +0200308
309 b = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
Tom Rinib2fb47f2011-12-15 08:40:51 -0700310 ep_wMaxPacketSize = get_unaligned(&ep->wMaxPacketSize);
Remy Bohmerbe19d322008-09-16 14:55:42 +0200311
312 if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
313 USB_ENDPOINT_XFER_CONTROL) {
314 /* Control => bidirectional */
Tom Rinib2fb47f2011-12-15 08:40:51 -0700315 dev->epmaxpacketout[b] = ep_wMaxPacketSize;
316 dev->epmaxpacketin[b] = ep_wMaxPacketSize;
Remy Bohmerbe19d322008-09-16 14:55:42 +0200317 USB_PRINTF("##Control EP epmaxpacketout/in[%d] = %d\n",
318 b, dev->epmaxpacketin[b]);
319 } else {
320 if ((ep->bEndpointAddress & 0x80) == 0) {
321 /* OUT Endpoint */
Tom Rinib2fb47f2011-12-15 08:40:51 -0700322 if (ep_wMaxPacketSize > dev->epmaxpacketout[b]) {
323 dev->epmaxpacketout[b] = ep_wMaxPacketSize;
Remy Bohmerbe19d322008-09-16 14:55:42 +0200324 USB_PRINTF("##EP epmaxpacketout[%d] = %d\n",
325 b, dev->epmaxpacketout[b]);
326 }
327 } else {
328 /* IN Endpoint */
Tom Rinib2fb47f2011-12-15 08:40:51 -0700329 if (ep_wMaxPacketSize > dev->epmaxpacketin[b]) {
330 dev->epmaxpacketin[b] = ep_wMaxPacketSize;
Remy Bohmerbe19d322008-09-16 14:55:42 +0200331 USB_PRINTF("##EP epmaxpacketin[%d] = %d\n",
332 b, dev->epmaxpacketin[b]);
333 }
334 } /* if out */
335 } /* if control */
336}
337
wdenkaffae2b2002-08-17 09:36:01 +0000338/*
339 * set the max packed value of all endpoints in the given configuration
340 */
Marek Vasutc08b1b22012-02-13 18:58:16 +0000341static int usb_set_maxpacket(struct usb_device *dev)
wdenkaffae2b2002-08-17 09:36:01 +0000342{
Remy Bohmerbe19d322008-09-16 14:55:42 +0200343 int i, ii;
wdenkaffae2b2002-08-17 09:36:01 +0000344
Tom Rix8f8bd562009-10-31 12:37:38 -0500345 for (i = 0; i < dev->config.desc.bNumInterfaces; i++)
346 for (ii = 0; ii < dev->config.if_desc[i].desc.bNumEndpoints; ii++)
Marek Vasut5e8baf82011-11-05 23:35:12 +0100347 usb_set_maxpacket_ep(dev, i, ii);
wdenkaffae2b2002-08-17 09:36:01 +0000348
wdenkaffae2b2002-08-17 09:36:01 +0000349 return 0;
350}
351
352/*******************************************************************************
353 * Parse the config, located in buffer, and fills the dev->config structure.
354 * Note that all little/big endian swapping are done automatically.
355 */
Marek Vasutc08b1b22012-02-13 18:58:16 +0000356static int usb_parse_config(struct usb_device *dev,
357 unsigned char *buffer, int cfgno)
wdenkaffae2b2002-08-17 09:36:01 +0000358{
359 struct usb_descriptor_header *head;
Bartlomiej Sieka7455af42006-08-02 00:54:18 +0200360 int index, ifno, epno, curr_if_num;
361 int i;
Tom Rinib2fb47f2011-12-15 08:40:51 -0700362 u16 ep_wMaxPacketSize;
wdenkaffae2b2002-08-17 09:36:01 +0000363
Bartlomiej Sieka7455af42006-08-02 00:54:18 +0200364 ifno = -1;
365 epno = -1;
366 curr_if_num = -1;
367
368 dev->configno = cfgno;
369 head = (struct usb_descriptor_header *) &buffer[0];
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200370 if (head->bDescriptorType != USB_DT_CONFIG) {
371 printf(" ERROR: NOT USB_CONFIG_DESC %x\n",
372 head->bDescriptorType);
wdenkaffae2b2002-08-17 09:36:01 +0000373 return -1;
374 }
Bartlomiej Sieka7455af42006-08-02 00:54:18 +0200375 memcpy(&dev->config, buffer, buffer[0]);
Tom Rix8f8bd562009-10-31 12:37:38 -0500376 le16_to_cpus(&(dev->config.desc.wTotalLength));
Bartlomiej Sieka7455af42006-08-02 00:54:18 +0200377 dev->config.no_of_if = 0;
wdenkaffae2b2002-08-17 09:36:01 +0000378
Tom Rix8f8bd562009-10-31 12:37:38 -0500379 index = dev->config.desc.bLength;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200380 /* Ok the first entry must be a configuration entry,
381 * now process the others */
Bartlomiej Sieka7455af42006-08-02 00:54:18 +0200382 head = (struct usb_descriptor_header *) &buffer[index];
Tom Rix8f8bd562009-10-31 12:37:38 -0500383 while (index + 1 < dev->config.desc.wTotalLength) {
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200384 switch (head->bDescriptorType) {
385 case USB_DT_INTERFACE:
386 if (((struct usb_interface_descriptor *) \
387 &buffer[index])->bInterfaceNumber != curr_if_num) {
388 /* this is a new interface, copy new desc */
389 ifno = dev->config.no_of_if;
390 dev->config.no_of_if++;
391 memcpy(&dev->config.if_desc[ifno],
Bartlomiej Sieka7455af42006-08-02 00:54:18 +0200392 &buffer[index], buffer[index]);
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200393 dev->config.if_desc[ifno].no_of_ep = 0;
394 dev->config.if_desc[ifno].num_altsetting = 1;
395 curr_if_num =
Tom Rix8f8bd562009-10-31 12:37:38 -0500396 dev->config.if_desc[ifno].desc.bInterfaceNumber;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200397 } else {
398 /* found alternate setting for the interface */
399 dev->config.if_desc[ifno].num_altsetting++;
400 }
401 break;
402 case USB_DT_ENDPOINT:
403 epno = dev->config.if_desc[ifno].no_of_ep;
404 /* found an endpoint */
405 dev->config.if_desc[ifno].no_of_ep++;
406 memcpy(&dev->config.if_desc[ifno].ep_desc[epno],
407 &buffer[index], buffer[index]);
Tom Rinib2fb47f2011-12-15 08:40:51 -0700408 ep_wMaxPacketSize = get_unaligned(&dev->config.\
409 if_desc[ifno].\
410 ep_desc[epno].\
411 wMaxPacketSize);
412 put_unaligned(le16_to_cpu(ep_wMaxPacketSize),
413 &dev->config.\
414 if_desc[ifno].\
415 ep_desc[epno].\
416 wMaxPacketSize);
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200417 USB_PRINTF("if %d, ep %d\n", ifno, epno);
418 break;
419 default:
420 if (head->bLength == 0)
421 return 1;
422
423 USB_PRINTF("unknown Description Type : %x\n",
424 head->bDescriptorType);
425
426 {
Wolfgang Denkfad2e1b2011-10-05 23:11:19 +0200427#ifdef USB_DEBUG
428 unsigned char *ch = (unsigned char *)head;
429#endif
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200430 for (i = 0; i < head->bLength; i++)
431 USB_PRINTF("%02X ", *ch++);
432 USB_PRINTF("\n\n\n");
433 }
434 break;
wdenkaffae2b2002-08-17 09:36:01 +0000435 }
Bartlomiej Sieka7455af42006-08-02 00:54:18 +0200436 index += head->bLength;
437 head = (struct usb_descriptor_header *)&buffer[index];
wdenkaffae2b2002-08-17 09:36:01 +0000438 }
439 return 1;
440}
441
442/***********************************************************************
443 * Clears an endpoint
444 * endp: endpoint number in bits 0-3;
445 * direction flag in bit 7 (1 = IN, 0 = OUT)
446 */
447int usb_clear_halt(struct usb_device *dev, int pipe)
448{
449 int result;
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200450 int endp = usb_pipeendpoint(pipe)|(usb_pipein(pipe)<<7);
wdenkaffae2b2002-08-17 09:36:01 +0000451
452 result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200453 USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 0,
454 endp, NULL, 0, USB_CNTL_TIMEOUT * 3);
wdenkaffae2b2002-08-17 09:36:01 +0000455
456 /* don't clear if failed */
457 if (result < 0)
458 return result;
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200459
Wolfgang Denk095b8a32005-08-02 17:06:17 +0200460 /*
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200461 * NOTE: we do not get status and verify reset was successful
462 * as some devices are reported to lock up upon this check..
463 */
464
wdenkaffae2b2002-08-17 09:36:01 +0000465 usb_endpoint_running(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe));
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200466
wdenkaffae2b2002-08-17 09:36:01 +0000467 /* toggle is reset on clear */
468 usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 0);
469 return 0;
470}
471
472
473/**********************************************************************
474 * get_descriptor type
475 */
Marek Vasutc08b1b22012-02-13 18:58:16 +0000476static int usb_get_descriptor(struct usb_device *dev, unsigned char type,
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200477 unsigned char index, void *buf, int size)
wdenkaffae2b2002-08-17 09:36:01 +0000478{
479 int res;
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200480 res = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
wdenkaffae2b2002-08-17 09:36:01 +0000481 USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
482 (type << 8) + index, 0,
483 buf, size, USB_CNTL_TIMEOUT);
484 return res;
485}
486
487/**********************************************************************
488 * gets configuration cfgno and store it in the buffer
489 */
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200490int usb_get_configuration_no(struct usb_device *dev,
491 unsigned char *buffer, int cfgno)
wdenkaffae2b2002-08-17 09:36:01 +0000492{
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200493 int result;
wdenkaffae2b2002-08-17 09:36:01 +0000494 unsigned int tmp;
Ilya Yanokc60795f2012-11-06 13:48:20 +0000495 struct usb_config_descriptor *config;
wdenkaffae2b2002-08-17 09:36:01 +0000496
Ilya Yanokc60795f2012-11-06 13:48:20 +0000497 config = (struct usb_config_descriptor *)&buffer[0];
Remy Bohmer48867202008-10-10 10:23:21 +0200498 result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 9);
499 if (result < 9) {
wdenkaffae2b2002-08-17 09:36:01 +0000500 if (result < 0)
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200501 printf("unable to get descriptor, error %lX\n",
502 dev->status);
wdenkaffae2b2002-08-17 09:36:01 +0000503 else
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200504 printf("config descriptor too short " \
Remy Bohmer48867202008-10-10 10:23:21 +0200505 "(expected %i, got %i)\n", 9, result);
wdenkaffae2b2002-08-17 09:36:01 +0000506 return -1;
507 }
Christian Eggersc9182612008-05-21 22:12:00 +0200508 tmp = le16_to_cpu(config->wTotalLength);
wdenkaffae2b2002-08-17 09:36:01 +0000509
wdenkcd0a9de2004-02-23 20:48:38 +0000510 if (tmp > USB_BUFSIZ) {
Vincent Palatin8b8d7792012-07-24 07:12:02 +0000511 printf("usb_get_configuration_no: failed to get " \
512 "descriptor - too long: %d\n", tmp);
wdenkcd0a9de2004-02-23 20:48:38 +0000513 return -1;
514 }
515
wdenkaffae2b2002-08-17 09:36:01 +0000516 result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, tmp);
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200517 USB_PRINTF("get_conf_no %d Result %d, wLength %d\n",
518 cfgno, result, tmp);
wdenkaffae2b2002-08-17 09:36:01 +0000519 return result;
520}
521
522/********************************************************************
523 * set address of a device to the value in dev->devnum.
524 * This can only be done by addressing the device via the default address (0)
525 */
Marek Vasutc08b1b22012-02-13 18:58:16 +0000526static int usb_set_address(struct usb_device *dev)
wdenkaffae2b2002-08-17 09:36:01 +0000527{
528 int res;
529
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200530 USB_PRINTF("set address %d\n", dev->devnum);
531 res = usb_control_msg(dev, usb_snddefctrl(dev),
532 USB_REQ_SET_ADDRESS, 0,
533 (dev->devnum), 0,
534 NULL, 0, USB_CNTL_TIMEOUT);
wdenkaffae2b2002-08-17 09:36:01 +0000535 return res;
536}
537
538/********************************************************************
539 * set interface number to interface
540 */
541int usb_set_interface(struct usb_device *dev, int interface, int alternate)
542{
Tom Rix8f8bd562009-10-31 12:37:38 -0500543 struct usb_interface *if_face = NULL;
wdenkaffae2b2002-08-17 09:36:01 +0000544 int ret, i;
545
Tom Rix8f8bd562009-10-31 12:37:38 -0500546 for (i = 0; i < dev->config.desc.bNumInterfaces; i++) {
547 if (dev->config.if_desc[i].desc.bInterfaceNumber == interface) {
wdenkaffae2b2002-08-17 09:36:01 +0000548 if_face = &dev->config.if_desc[i];
549 break;
550 }
551 }
552 if (!if_face) {
553 printf("selecting invalid interface %d", interface);
554 return -1;
555 }
Bartlomiej Sieka7455af42006-08-02 00:54:18 +0200556 /*
557 * We should return now for devices with only one alternate setting.
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200558 * According to 9.4.10 of the Universal Serial Bus Specification
559 * Revision 2.0 such devices can return with a STALL. This results in
560 * some USB sticks timeouting during initialization and then being
561 * unusable in U-Boot.
Bartlomiej Sieka7455af42006-08-02 00:54:18 +0200562 */
563 if (if_face->num_altsetting == 1)
564 return 0;
wdenkaffae2b2002-08-17 09:36:01 +0000565
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200566 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
567 USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE,
568 alternate, interface, NULL, 0,
569 USB_CNTL_TIMEOUT * 5);
570 if (ret < 0)
wdenkaffae2b2002-08-17 09:36:01 +0000571 return ret;
572
wdenkaffae2b2002-08-17 09:36:01 +0000573 return 0;
574}
575
576/********************************************************************
577 * set configuration number to configuration
578 */
Marek Vasutc08b1b22012-02-13 18:58:16 +0000579static int usb_set_configuration(struct usb_device *dev, int configuration)
wdenkaffae2b2002-08-17 09:36:01 +0000580{
581 int res;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200582 USB_PRINTF("set configuration %d\n", configuration);
wdenkaffae2b2002-08-17 09:36:01 +0000583 /* set setup command */
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200584 res = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
585 USB_REQ_SET_CONFIGURATION, 0,
586 configuration, 0,
587 NULL, 0, USB_CNTL_TIMEOUT);
588 if (res == 0) {
wdenkaffae2b2002-08-17 09:36:01 +0000589 dev->toggle[0] = 0;
590 dev->toggle[1] = 0;
591 return 0;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200592 } else
wdenkaffae2b2002-08-17 09:36:01 +0000593 return -1;
594}
595
596/********************************************************************
597 * set protocol to protocol
598 */
599int usb_set_protocol(struct usb_device *dev, int ifnum, int protocol)
600{
601 return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
602 USB_REQ_SET_PROTOCOL, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
603 protocol, ifnum, NULL, 0, USB_CNTL_TIMEOUT);
604}
605
606/********************************************************************
607 * set idle
608 */
609int usb_set_idle(struct usb_device *dev, int ifnum, int duration, int report_id)
610{
611 return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
612 USB_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
613 (duration << 8) | report_id, ifnum, NULL, 0, USB_CNTL_TIMEOUT);
614}
615
616/********************************************************************
617 * get report
618 */
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200619int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type,
620 unsigned char id, void *buf, int size)
wdenkaffae2b2002-08-17 09:36:01 +0000621{
622 return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200623 USB_REQ_GET_REPORT,
624 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
625 (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT);
wdenkaffae2b2002-08-17 09:36:01 +0000626}
627
628/********************************************************************
629 * get class descriptor
630 */
631int usb_get_class_descriptor(struct usb_device *dev, int ifnum,
632 unsigned char type, unsigned char id, void *buf, int size)
633{
634 return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
635 USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN,
636 (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT);
637}
638
639/********************************************************************
640 * get string index in buffer
641 */
Marek Vasutc08b1b22012-02-13 18:58:16 +0000642static int usb_get_string(struct usb_device *dev, unsigned short langid,
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200643 unsigned char index, void *buf, int size)
wdenkaffae2b2002-08-17 09:36:01 +0000644{
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200645 int i;
646 int result;
647
648 for (i = 0; i < 3; ++i) {
649 /* some devices are flaky */
650 result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
651 USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
Wolfgang Denk095b8a32005-08-02 17:06:17 +0200652 (USB_DT_STRING << 8) + index, langid, buf, size,
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200653 USB_CNTL_TIMEOUT);
654
655 if (result > 0)
656 break;
Wolfgang Denk095b8a32005-08-02 17:06:17 +0200657 }
658
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200659 return result;
wdenkaffae2b2002-08-17 09:36:01 +0000660}
661
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200662
663static void usb_try_string_workarounds(unsigned char *buf, int *length)
664{
665 int newlength, oldlength = *length;
666
667 for (newlength = 2; newlength + 1 < oldlength; newlength += 2)
668 if (!isprint(buf[newlength]) || buf[newlength + 1])
669 break;
670
671 if (newlength > 2) {
672 buf[0] = newlength;
673 *length = newlength;
674 }
675}
676
677
678static int usb_string_sub(struct usb_device *dev, unsigned int langid,
679 unsigned int index, unsigned char *buf)
680{
681 int rc;
682
683 /* Try to read the string descriptor by asking for the maximum
684 * possible number of bytes */
685 rc = usb_get_string(dev, langid, index, buf, 255);
686
687 /* If that failed try to read the descriptor length, then
688 * ask for just that many bytes */
689 if (rc < 2) {
690 rc = usb_get_string(dev, langid, index, buf, 2);
691 if (rc == 2)
692 rc = usb_get_string(dev, langid, index, buf, buf[0]);
693 }
694
695 if (rc >= 2) {
696 if (!buf[0] && !buf[1])
697 usb_try_string_workarounds(buf, &rc);
698
699 /* There might be extra junk at the end of the descriptor */
700 if (buf[0] < rc)
701 rc = buf[0];
702
703 rc = rc - (rc & 1); /* force a multiple of two */
704 }
705
706 if (rc < 2)
Wolfgang Denk095b8a32005-08-02 17:06:17 +0200707 rc = -1;
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200708
709 return rc;
710}
711
712
wdenkaffae2b2002-08-17 09:36:01 +0000713/********************************************************************
714 * usb_string:
715 * Get string index and translate it to ascii.
716 * returns string length (> 0) or error (< 0)
717 */
718int usb_string(struct usb_device *dev, int index, char *buf, size_t size)
719{
Puneet Saxenaf5766132012-04-03 14:56:06 +0530720 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, mybuf, USB_BUFSIZ);
wdenkaffae2b2002-08-17 09:36:01 +0000721 unsigned char *tbuf;
722 int err;
723 unsigned int u, idx;
724
725 if (size <= 0 || !buf || !index)
726 return -1;
727 buf[0] = 0;
Wolfgang Denkd0ff51b2008-07-14 15:19:07 +0200728 tbuf = &mybuf[0];
wdenkaffae2b2002-08-17 09:36:01 +0000729
730 /* get langid for strings if it's not yet known */
731 if (!dev->have_langid) {
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200732 err = usb_string_sub(dev, 0, 0, tbuf);
wdenkaffae2b2002-08-17 09:36:01 +0000733 if (err < 0) {
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200734 USB_PRINTF("error getting string descriptor 0 " \
Stefan Roesef1c1f542009-01-22 10:11:21 +0100735 "(error=%lx)\n", dev->status);
wdenkaffae2b2002-08-17 09:36:01 +0000736 return -1;
737 } else if (tbuf[0] < 4) {
738 USB_PRINTF("string descriptor 0 too short\n");
739 return -1;
740 } else {
741 dev->have_langid = -1;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200742 dev->string_langid = tbuf[2] | (tbuf[3] << 8);
wdenkaffae2b2002-08-17 09:36:01 +0000743 /* always use the first langid listed */
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200744 USB_PRINTF("USB device number %d default " \
745 "language ID 0x%x\n",
746 dev->devnum, dev->string_langid);
wdenkaffae2b2002-08-17 09:36:01 +0000747 }
748 }
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200749
750 err = usb_string_sub(dev, dev->string_langid, index, tbuf);
wdenkaffae2b2002-08-17 09:36:01 +0000751 if (err < 0)
752 return err;
wdenkcd0a9de2004-02-23 20:48:38 +0000753
wdenkaffae2b2002-08-17 09:36:01 +0000754 size--; /* leave room for trailing NULL char in output buffer */
755 for (idx = 0, u = 2; u < err; u += 2) {
756 if (idx >= size)
757 break;
758 if (tbuf[u+1]) /* high byte */
759 buf[idx++] = '?'; /* non-ASCII character */
760 else
761 buf[idx++] = tbuf[u];
762 }
763 buf[idx] = 0;
764 err = idx;
765 return err;
766}
767
768
769/********************************************************************
770 * USB device handling:
771 * the USB device are static allocated [USB_MAX_DEVICE].
772 */
773
774
775/* returns a pointer to the device with the index [index].
776 * if the device is not assigned (dev->devnum==-1) returns NULL
777 */
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200778struct usb_device *usb_get_dev_index(int index)
wdenkaffae2b2002-08-17 09:36:01 +0000779{
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200780 if (usb_dev[index].devnum == -1)
wdenkaffae2b2002-08-17 09:36:01 +0000781 return NULL;
782 else
783 return &usb_dev[index];
784}
785
wdenkaffae2b2002-08-17 09:36:01 +0000786/* returns a pointer of a new device structure or NULL, if
787 * no device struct is available
788 */
Lucas Stachc7e3b2b2012-09-26 00:14:34 +0200789struct usb_device *usb_alloc_new_device(void *controller)
wdenkaffae2b2002-08-17 09:36:01 +0000790{
791 int i;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200792 USB_PRINTF("New Device %d\n", dev_index);
793 if (dev_index == USB_MAX_DEVICE) {
794 printf("ERROR, too many USB Devices, max=%d\n", USB_MAX_DEVICE);
wdenkaffae2b2002-08-17 09:36:01 +0000795 return NULL;
796 }
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200797 /* default Address is 0, real addresses start with 1 */
798 usb_dev[dev_index].devnum = dev_index + 1;
799 usb_dev[dev_index].maxchild = 0;
800 for (i = 0; i < USB_MAXCHILDREN; i++)
801 usb_dev[dev_index].children[i] = NULL;
802 usb_dev[dev_index].parent = NULL;
Lucas Stachc7e3b2b2012-09-26 00:14:34 +0200803 usb_dev[dev_index].controller = controller;
wdenkaffae2b2002-08-17 09:36:01 +0000804 dev_index++;
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200805 return &usb_dev[dev_index - 1];
wdenkaffae2b2002-08-17 09:36:01 +0000806}
807
Milind Choudhary359439d2012-12-12 17:55:28 -0800808/*
809 * Free the newly created device node.
810 * Called in error cases where configuring a newly attached
811 * device fails for some reason.
812 */
813void usb_free_device(void)
814{
815 dev_index--;
816 USB_PRINTF("Freeing device node: %d\n", dev_index);
817 memset(&usb_dev[dev_index], 0, sizeof(struct usb_device));
818 usb_dev[dev_index].devnum = -1;
819}
wdenkaffae2b2002-08-17 09:36:01 +0000820
821/*
822 * By the time we get here, the device has gotten a new device ID
823 * and is in the default state. We need to identify the thing and
824 * get the ball rolling..
825 *
826 * Returns 0 for success, != 0 for error.
827 */
Marek Vasut23faf2b2012-02-13 18:58:17 +0000828int usb_new_device(struct usb_device *dev)
wdenkaffae2b2002-08-17 09:36:01 +0000829{
830 int addr, err;
831 int tmp;
Puneet Saxenaf5766132012-04-03 14:56:06 +0530832 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, tmpbuf, USB_BUFSIZ);
wdenkaffae2b2002-08-17 09:36:01 +0000833
wdenkaffae2b2002-08-17 09:36:01 +0000834 /* We still haven't set the Address yet */
835 addr = dev->devnum;
836 dev->devnum = 0;
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200837
Remy Bohmerc9e84362008-09-16 14:55:44 +0200838#ifdef CONFIG_LEGACY_USB_INIT_SEQ
839 /* this is the old and known way of initializing devices, it is
840 * different than what Windows and Linux are doing. Windows and Linux
841 * both retrieve 64 bytes while reading the device descriptor
842 * Several USB stick devices report ERR: CTL_TIMEOUT, caused by an
843 * invalid header while reading 8 bytes as device descriptor. */
844 dev->descriptor.bMaxPacketSize0 = 8; /* Start off at 8 bytes */
Remy Bohmer48867202008-10-10 10:23:21 +0200845 dev->maxpacketsize = PACKET_SIZE_8;
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100846 dev->epmaxpacketin[0] = 8;
Remy Bohmerc9e84362008-09-16 14:55:44 +0200847 dev->epmaxpacketout[0] = 8;
848
Ilya Yanok80ab4142012-07-15 04:43:50 +0000849 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, tmpbuf, 8);
Remy Bohmerc9e84362008-09-16 14:55:44 +0200850 if (err < 8) {
851 printf("\n USB device not responding, " \
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100852 "giving up (status=%lX)\n", dev->status);
Remy Bohmerc9e84362008-09-16 14:55:44 +0200853 return 1;
854 }
Ilya Yanok80ab4142012-07-15 04:43:50 +0000855 memcpy(&dev->descriptor, tmpbuf, 8);
Remy Bohmerc9e84362008-09-16 14:55:44 +0200856#else
Remy Bohmer48867202008-10-10 10:23:21 +0200857 /* This is a Windows scheme of initialization sequence, with double
858 * reset of the device (Linux uses the same sequence)
Remy Bohmerc9e84362008-09-16 14:55:44 +0200859 * Some equipment is said to work only with such init sequence; this
860 * patch is based on the work by Alan Stern:
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100861 * http://sourceforge.net/mailarchive/forum.php?
862 * thread_id=5729457&forum_id=5398
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200863 */
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200864 struct usb_device_descriptor *desc;
865 int port = -1;
866 struct usb_device *parent = dev->parent;
867 unsigned short portstatus;
868
869 /* send 64-byte GET-DEVICE-DESCRIPTOR request. Since the descriptor is
870 * only 18 bytes long, this will terminate with a short packet. But if
871 * the maxpacket size is 8 or 16 the device may be waiting to transmit
Remy Bohmerc9e84362008-09-16 14:55:44 +0200872 * some more, or keeps on retransmitting the 8 byte header. */
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200873
874 desc = (struct usb_device_descriptor *)tmpbuf;
Remy Bohmerc9e84362008-09-16 14:55:44 +0200875 dev->descriptor.bMaxPacketSize0 = 64; /* Start off at 64 bytes */
Remy Bohmer48867202008-10-10 10:23:21 +0200876 /* Default to 64 byte max packet size */
877 dev->maxpacketsize = PACKET_SIZE_64;
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100878 dev->epmaxpacketin[0] = 64;
Remy Bohmerc9e84362008-09-16 14:55:44 +0200879 dev->epmaxpacketout[0] = 64;
Remy Bohmer48867202008-10-10 10:23:21 +0200880
881 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, 64);
882 if (err < 0) {
883 USB_PRINTF("usb_new_device: usb_get_descriptor() failed\n");
884 return 1;
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200885 }
Remy Bohmer48867202008-10-10 10:23:21 +0200886
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200887 dev->descriptor.bMaxPacketSize0 = desc->bMaxPacketSize0;
Wolfgang Denk095b8a32005-08-02 17:06:17 +0200888
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200889 /* find the port number we're at */
890 if (parent) {
Remy Bohmer48867202008-10-10 10:23:21 +0200891 int j;
Wolfgang Denk095b8a32005-08-02 17:06:17 +0200892
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200893 for (j = 0; j < parent->maxchild; j++) {
894 if (parent->children[j] == dev) {
895 port = j;
896 break;
897 }
898 }
899 if (port < 0) {
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200900 printf("usb_new_device:cannot locate device's port.\n");
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200901 return 1;
902 }
903
904 /* reset the port for the second time */
905 err = hub_port_reset(dev->parent, port, &portstatus);
906 if (err < 0) {
907 printf("\n Couldn't reset port %i\n", port);
908 return 1;
909 }
910 }
Wolfgang Denk9c998aa2005-07-21 11:57:57 +0200911#endif
912
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100913 dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0;
wdenkaffae2b2002-08-17 09:36:01 +0000914 dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0;
915 switch (dev->descriptor.bMaxPacketSize0) {
Michael Trimarchide39f8c2008-11-26 17:41:34 +0100916 case 8:
917 dev->maxpacketsize = PACKET_SIZE_8;
918 break;
919 case 16:
920 dev->maxpacketsize = PACKET_SIZE_16;
921 break;
922 case 32:
923 dev->maxpacketsize = PACKET_SIZE_32;
924 break;
925 case 64:
926 dev->maxpacketsize = PACKET_SIZE_64;
927 break;
wdenkaffae2b2002-08-17 09:36:01 +0000928 }
929 dev->devnum = addr;
930
931 err = usb_set_address(dev); /* set address */
932
933 if (err < 0) {
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200934 printf("\n USB device not accepting new address " \
935 "(error=%lX)\n", dev->status);
wdenkaffae2b2002-08-17 09:36:01 +0000936 return 1;
937 }
938
Mike Frysinger5b84dd62012-03-05 13:47:00 +0000939 mdelay(10); /* Let the SET_ADDRESS settle */
wdenkaffae2b2002-08-17 09:36:01 +0000940
941 tmp = sizeof(dev->descriptor);
942
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200943 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
Ilya Yanok80ab4142012-07-15 04:43:50 +0000944 tmpbuf, sizeof(dev->descriptor));
wdenkaffae2b2002-08-17 09:36:01 +0000945 if (err < tmp) {
946 if (err < 0)
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200947 printf("unable to get device descriptor (error=%d)\n",
948 err);
wdenkaffae2b2002-08-17 09:36:01 +0000949 else
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200950 printf("USB device descriptor short read " \
951 "(expected %i, got %i)\n", tmp, err);
wdenkaffae2b2002-08-17 09:36:01 +0000952 return 1;
953 }
Ilya Yanok80ab4142012-07-15 04:43:50 +0000954 memcpy(&dev->descriptor, tmpbuf, sizeof(dev->descriptor));
wdenkaffae2b2002-08-17 09:36:01 +0000955 /* correct le values */
Christian Eggersc9182612008-05-21 22:12:00 +0200956 le16_to_cpus(&dev->descriptor.bcdUSB);
957 le16_to_cpus(&dev->descriptor.idVendor);
958 le16_to_cpus(&dev->descriptor.idProduct);
959 le16_to_cpus(&dev->descriptor.bcdDevice);
wdenkaffae2b2002-08-17 09:36:01 +0000960 /* only support for one config for now */
Vincent Palatin8b8d7792012-07-24 07:12:02 +0000961 err = usb_get_configuration_no(dev, tmpbuf, 0);
962 if (err < 0) {
963 printf("usb_new_device: Cannot read configuration, " \
964 "skipping device %04x:%04x\n",
965 dev->descriptor.idVendor, dev->descriptor.idProduct);
966 return -1;
967 }
Puneet Saxenaf5766132012-04-03 14:56:06 +0530968 usb_parse_config(dev, tmpbuf, 0);
wdenkaffae2b2002-08-17 09:36:01 +0000969 usb_set_maxpacket(dev);
970 /* we set the default configuration here */
Tom Rix8f8bd562009-10-31 12:37:38 -0500971 if (usb_set_configuration(dev, dev->config.desc.bConfigurationValue)) {
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200972 printf("failed to set default configuration " \
973 "len %d, status %lX\n", dev->act_len, dev->status);
wdenkaffae2b2002-08-17 09:36:01 +0000974 return -1;
975 }
976 USB_PRINTF("new device strings: Mfr=%d, Product=%d, SerialNumber=%d\n",
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200977 dev->descriptor.iManufacturer, dev->descriptor.iProduct,
978 dev->descriptor.iSerialNumber);
wdenkaffae2b2002-08-17 09:36:01 +0000979 memset(dev->mf, 0, sizeof(dev->mf));
980 memset(dev->prod, 0, sizeof(dev->prod));
981 memset(dev->serial, 0, sizeof(dev->serial));
982 if (dev->descriptor.iManufacturer)
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200983 usb_string(dev, dev->descriptor.iManufacturer,
984 dev->mf, sizeof(dev->mf));
wdenkaffae2b2002-08-17 09:36:01 +0000985 if (dev->descriptor.iProduct)
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200986 usb_string(dev, dev->descriptor.iProduct,
987 dev->prod, sizeof(dev->prod));
wdenkaffae2b2002-08-17 09:36:01 +0000988 if (dev->descriptor.iSerialNumber)
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200989 usb_string(dev, dev->descriptor.iSerialNumber,
990 dev->serial, sizeof(dev->serial));
wdenkaffae2b2002-08-17 09:36:01 +0000991 USB_PRINTF("Manufacturer %s\n", dev->mf);
992 USB_PRINTF("Product %s\n", dev->prod);
993 USB_PRINTF("SerialNumber %s\n", dev->serial);
994 /* now prode if the device is a hub */
Remy Bohmer6f5794a2008-09-16 14:55:43 +0200995 usb_hub_probe(dev, 0);
wdenkaffae2b2002-08-17 09:36:01 +0000996 return 0;
997}
998
wdenkaffae2b2002-08-17 09:36:01 +0000999/* EOF */