wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1 | /* |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 2 | * Most of this source has been derived from the Linux USB |
Wolfgang Denk | 6a3d6b0 | 2005-08-04 01:14:12 +0200 | [diff] [blame] | 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 |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 16 | * |
Wolfgang Denk | d79de1d | 2013-07-08 09:37:19 +0200 | [diff] [blame] | 17 | * SPDX-License-Identifier: GPL-2.0+ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 18 | */ |
| 19 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 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> |
| 31 | #include <asm/processor.h> |
Mike Frysinger | 6d31114 | 2012-04-04 18:44:53 +0000 | [diff] [blame] | 32 | #include <linux/compiler.h> |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 33 | #include <linux/ctype.h> |
Christian Eggers | 4e0e8d0 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 34 | #include <asm/byteorder.h> |
Tom Rini | 7342452 | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 35 | #include <asm/unaligned.h> |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 36 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 37 | #include <usb.h> |
| 38 | #ifdef CONFIG_4xx |
Stefan Roese | ca8725f | 2007-10-03 15:01:02 +0200 | [diff] [blame] | 39 | #include <asm/4xx_pci.h> |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 40 | #endif |
| 41 | |
wdenk | f70cbb2 | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 42 | #define USB_BUFSIZ 512 |
| 43 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 44 | static struct usb_device usb_dev[USB_MAX_DEVICE]; |
| 45 | static int dev_index; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 46 | static int asynch_allowed; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 47 | |
Bartlomiej Sieka | e39589f | 2006-08-03 23:20:13 +0200 | [diff] [blame] | 48 | char usb_started; /* flag for the started/stopped USB status */ |
| 49 | |
Lucas Stach | e6d3345 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 50 | #ifndef CONFIG_USB_MAX_CONTROLLER_COUNT |
| 51 | #define CONFIG_USB_MAX_CONTROLLER_COUNT 1 |
| 52 | #endif |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 53 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 54 | /*************************************************************************** |
| 55 | * Init USB Device |
| 56 | */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 57 | int usb_init(void) |
| 58 | { |
Lucas Stach | e6d3345 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 59 | void *ctrl; |
| 60 | struct usb_device *dev; |
| 61 | int i, start_index = 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 62 | |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 63 | dev_index = 0; |
| 64 | asynch_allowed = 1; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 65 | usb_hub_reset(); |
Lucas Stach | e6d3345 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 66 | |
| 67 | /* first make all devices unknown */ |
| 68 | for (i = 0; i < USB_MAX_DEVICE; i++) { |
| 69 | memset(&usb_dev[i], 0, sizeof(struct usb_device)); |
| 70 | usb_dev[i].devnum = -1; |
| 71 | } |
| 72 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 73 | /* init low_level USB */ |
Lucas Stach | e6d3345 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 74 | for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) { |
| 75 | /* init low_level USB */ |
| 76 | printf("USB%d: ", i); |
| 77 | if (usb_lowlevel_init(i, &ctrl)) { |
| 78 | puts("lowlevel init failed\n"); |
| 79 | continue; |
| 80 | } |
| 81 | /* |
| 82 | * lowlevel init is OK, now scan the bus for devices |
| 83 | * i.e. search HUBs and configure them |
| 84 | */ |
| 85 | start_index = dev_index; |
| 86 | printf("scanning bus %d for devices... ", i); |
| 87 | dev = usb_alloc_new_device(ctrl); |
| 88 | /* |
| 89 | * device 0 is always present |
| 90 | * (root hub, so let it analyze) |
| 91 | */ |
| 92 | if (dev) |
| 93 | usb_new_device(dev); |
| 94 | |
| 95 | if (start_index == dev_index) |
| 96 | puts("No USB Device found\n"); |
| 97 | else |
| 98 | printf("%d USB Device(s) found\n", |
| 99 | dev_index - start_index); |
| 100 | |
Bartlomiej Sieka | e39589f | 2006-08-03 23:20:13 +0200 | [diff] [blame] | 101 | usb_started = 1; |
Lucas Stach | e6d3345 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 102 | } |
| 103 | |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 104 | debug("scan end\n"); |
Lucas Stach | e6d3345 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 105 | /* if we were not able to find at least one working bus, bail out */ |
| 106 | if (!usb_started) { |
| 107 | puts("USB error: all controllers failed lowlevel init\n"); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 108 | return -1; |
| 109 | } |
Lucas Stach | e6d3345 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 110 | |
| 111 | return 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | /****************************************************************************** |
| 115 | * Stop USB this stops the LowLevel Part and deregisters USB devices. |
| 116 | */ |
| 117 | int usb_stop(void) |
| 118 | { |
Lucas Stach | e6d3345 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 119 | int i; |
Remy Bohmer | 743dd49 | 2008-08-20 11:22:02 +0200 | [diff] [blame] | 120 | |
| 121 | if (usb_started) { |
| 122 | asynch_allowed = 1; |
| 123 | usb_started = 0; |
| 124 | usb_hub_reset(); |
Lucas Stach | e6d3345 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 125 | |
| 126 | for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) { |
| 127 | if (usb_lowlevel_stop(i)) |
| 128 | printf("failed to stop USB controller %d\n", i); |
| 129 | } |
Remy Bohmer | 743dd49 | 2008-08-20 11:22:02 +0200 | [diff] [blame] | 130 | } |
Lucas Stach | e6d3345 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 131 | |
| 132 | return 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | /* |
| 136 | * disables the asynch behaviour of the control message. This is used for data |
| 137 | * transfers that uses the exclusiv access to the control and bulk messages. |
Simon Glass | 1e9961d | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 138 | * Returns the old value so it can be restored later. |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 139 | */ |
Simon Glass | 1e9961d | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 140 | int usb_disable_asynch(int disable) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 141 | { |
Simon Glass | 1e9961d | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 142 | int old_value = asynch_allowed; |
| 143 | |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 144 | asynch_allowed = !disable; |
Simon Glass | 1e9961d | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 145 | return old_value; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | |
| 149 | /*------------------------------------------------------------------- |
| 150 | * Message wrappers. |
| 151 | * |
| 152 | */ |
| 153 | |
| 154 | /* |
| 155 | * submits an Interrupt Message |
| 156 | */ |
| 157 | int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe, |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 158 | void *buffer, int transfer_len, int interval) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 159 | { |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 160 | return submit_int_msg(dev, pipe, buffer, transfer_len, interval); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 161 | } |
| 162 | |
| 163 | /* |
| 164 | * submits a control message and waits for comletion (at least timeout * 1ms) |
| 165 | * If timeout is 0, we don't wait for completion (used as example to set and |
| 166 | * clear keyboards LEDs). For data transfers, (storage transfers) we don't |
| 167 | * allow control messages with 0 timeout, by previousely resetting the flag |
| 168 | * asynch_allowed (usb_disable_asynch(1)). |
| 169 | * returns the transfered length if OK or -1 if error. The transfered length |
| 170 | * and the current status are stored in the dev->act_len and dev->status. |
| 171 | */ |
| 172 | int usb_control_msg(struct usb_device *dev, unsigned int pipe, |
| 173 | unsigned char request, unsigned char requesttype, |
| 174 | unsigned short value, unsigned short index, |
| 175 | void *data, unsigned short size, int timeout) |
| 176 | { |
Puneet Saxena | 6c9bb60 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 177 | ALLOC_CACHE_ALIGN_BUFFER(struct devrequest, setup_packet, 1); |
Marek Vasut | f16090f | 2012-02-13 18:58:18 +0000 | [diff] [blame] | 178 | |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 179 | if ((timeout == 0) && (!asynch_allowed)) { |
| 180 | /* request for a asynch control pipe is not allowed */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 181 | return -1; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 182 | } |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 183 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 184 | /* set setup command */ |
Puneet Saxena | 6c9bb60 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 185 | setup_packet->requesttype = requesttype; |
| 186 | setup_packet->request = request; |
| 187 | setup_packet->value = cpu_to_le16(value); |
| 188 | setup_packet->index = cpu_to_le16(index); |
| 189 | setup_packet->length = cpu_to_le16(size); |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 190 | debug("usb_control_msg: request: 0x%X, requesttype: 0x%X, " \ |
| 191 | "value 0x%X index 0x%X length 0x%X\n", |
| 192 | request, requesttype, value, index, size); |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 193 | dev->status = USB_ST_NOT_PROC; /*not yet processed */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 194 | |
Ilya Yanok | b7161dd | 2012-07-15 04:43:51 +0000 | [diff] [blame] | 195 | if (submit_control_msg(dev, pipe, data, size, setup_packet) < 0) |
| 196 | return -1; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 197 | if (timeout == 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 198 | return (int)size; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 199 | |
Remy Bohmer | 93cf093 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 200 | /* |
| 201 | * Wait for status to update until timeout expires, USB driver |
| 202 | * interrupt handler may set the status when the USB operation has |
| 203 | * been completed. |
| 204 | */ |
| 205 | while (timeout--) { |
| 206 | if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) |
| 207 | break; |
Mike Frysinger | 60ce19a | 2012-03-05 13:47:00 +0000 | [diff] [blame] | 208 | mdelay(1); |
Remy Bohmer | 47e7208 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 209 | } |
Remy Bohmer | 93cf093 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 210 | if (dev->status) |
| 211 | return -1; |
Remy Bohmer | 47e7208 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 212 | |
| 213 | return dev->act_len; |
Remy Bohmer | 93cf093 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 214 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 215 | } |
| 216 | |
| 217 | /*------------------------------------------------------------------- |
| 218 | * submits bulk message, and waits for completion. returns 0 if Ok or |
| 219 | * -1 if Error. |
| 220 | * synchronous behavior |
| 221 | */ |
| 222 | int usb_bulk_msg(struct usb_device *dev, unsigned int pipe, |
| 223 | void *data, int len, int *actual_length, int timeout) |
| 224 | { |
| 225 | if (len < 0) |
| 226 | return -1; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 227 | dev->status = USB_ST_NOT_PROC; /*not yet processed */ |
Ilya Yanok | b7161dd | 2012-07-15 04:43:51 +0000 | [diff] [blame] | 228 | if (submit_bulk_msg(dev, pipe, data, len) < 0) |
| 229 | return -1; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 230 | while (timeout--) { |
| 231 | if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 232 | break; |
Mike Frysinger | 60ce19a | 2012-03-05 13:47:00 +0000 | [diff] [blame] | 233 | mdelay(1); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 234 | } |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 235 | *actual_length = dev->act_len; |
| 236 | if (dev->status == 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 237 | return 0; |
| 238 | else |
| 239 | return -1; |
| 240 | } |
| 241 | |
| 242 | |
| 243 | /*------------------------------------------------------------------- |
| 244 | * Max Packet stuff |
| 245 | */ |
| 246 | |
| 247 | /* |
| 248 | * returns the max packet size, depending on the pipe direction and |
| 249 | * the configurations values |
| 250 | */ |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 251 | int usb_maxpacket(struct usb_device *dev, unsigned long pipe) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 252 | { |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 253 | /* direction is out -> use emaxpacket out */ |
| 254 | if ((pipe & USB_DIR_IN) == 0) |
Michael Trimarchi | 5f2e7fc | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 255 | return dev->epmaxpacketout[((pipe>>15) & 0xf)]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 256 | else |
Michael Trimarchi | 5f2e7fc | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 257 | return dev->epmaxpacketin[((pipe>>15) & 0xf)]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 258 | } |
| 259 | |
Marek Vasut | d38ad25 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 260 | /* |
| 261 | * The routine usb_set_maxpacket_ep() is extracted from the loop of routine |
Remy Bohmer | cb2df64 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 262 | * usb_set_maxpacket(), because the optimizer of GCC 4.x chokes on this routine |
| 263 | * when it is inlined in 1 single routine. What happens is that the register r3 |
| 264 | * is used as loop-count 'i', but gets overwritten later on. |
| 265 | * This is clearly a compiler bug, but it is easier to workaround it here than |
| 266 | * to update the compiler (Occurs with at least several GCC 4.{1,2},x |
| 267 | * CodeSourcery compilers like e.g. 2007q3, 2008q1, 2008q3 lite editions on ARM) |
Marek Vasut | d38ad25 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 268 | * |
| 269 | * NOTE: Similar behaviour was observed with GCC4.6 on ARMv5. |
Remy Bohmer | cb2df64 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 270 | */ |
Mike Frysinger | 6d31114 | 2012-04-04 18:44:53 +0000 | [diff] [blame] | 271 | static void noinline |
Marek Vasut | d38ad25 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 272 | usb_set_maxpacket_ep(struct usb_device *dev, int if_idx, int ep_idx) |
Remy Bohmer | cb2df64 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 273 | { |
| 274 | int b; |
Marek Vasut | d38ad25 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 275 | struct usb_endpoint_descriptor *ep; |
Tom Rini | 7342452 | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 276 | u16 ep_wMaxPacketSize; |
Marek Vasut | d38ad25 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 277 | |
| 278 | ep = &dev->config.if_desc[if_idx].ep_desc[ep_idx]; |
Remy Bohmer | cb2df64 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 279 | |
| 280 | b = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; |
Tom Rini | 7342452 | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 281 | ep_wMaxPacketSize = get_unaligned(&ep->wMaxPacketSize); |
Remy Bohmer | cb2df64 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 282 | |
| 283 | if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == |
| 284 | USB_ENDPOINT_XFER_CONTROL) { |
| 285 | /* Control => bidirectional */ |
Tom Rini | 7342452 | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 286 | dev->epmaxpacketout[b] = ep_wMaxPacketSize; |
| 287 | dev->epmaxpacketin[b] = ep_wMaxPacketSize; |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 288 | debug("##Control EP epmaxpacketout/in[%d] = %d\n", |
| 289 | b, dev->epmaxpacketin[b]); |
Remy Bohmer | cb2df64 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 290 | } else { |
| 291 | if ((ep->bEndpointAddress & 0x80) == 0) { |
| 292 | /* OUT Endpoint */ |
Tom Rini | 7342452 | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 293 | if (ep_wMaxPacketSize > dev->epmaxpacketout[b]) { |
| 294 | dev->epmaxpacketout[b] = ep_wMaxPacketSize; |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 295 | debug("##EP epmaxpacketout[%d] = %d\n", |
| 296 | b, dev->epmaxpacketout[b]); |
Remy Bohmer | cb2df64 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 297 | } |
| 298 | } else { |
| 299 | /* IN Endpoint */ |
Tom Rini | 7342452 | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 300 | if (ep_wMaxPacketSize > dev->epmaxpacketin[b]) { |
| 301 | dev->epmaxpacketin[b] = ep_wMaxPacketSize; |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 302 | debug("##EP epmaxpacketin[%d] = %d\n", |
| 303 | b, dev->epmaxpacketin[b]); |
Remy Bohmer | cb2df64 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 304 | } |
| 305 | } /* if out */ |
| 306 | } /* if control */ |
| 307 | } |
| 308 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 309 | /* |
| 310 | * set the max packed value of all endpoints in the given configuration |
| 311 | */ |
Marek Vasut | 3a16a6a | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 312 | static int usb_set_maxpacket(struct usb_device *dev) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 313 | { |
Remy Bohmer | cb2df64 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 314 | int i, ii; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 315 | |
Tom Rix | 83b9e1d | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 316 | for (i = 0; i < dev->config.desc.bNumInterfaces; i++) |
| 317 | for (ii = 0; ii < dev->config.if_desc[i].desc.bNumEndpoints; ii++) |
Marek Vasut | d38ad25 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 318 | usb_set_maxpacket_ep(dev, i, ii); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 319 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 320 | return 0; |
| 321 | } |
| 322 | |
| 323 | /******************************************************************************* |
| 324 | * Parse the config, located in buffer, and fills the dev->config structure. |
| 325 | * Note that all little/big endian swapping are done automatically. |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 326 | * (wTotalLength has already been swapped and sanitized when it was read.) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 327 | */ |
Marek Vasut | 3a16a6a | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 328 | static int usb_parse_config(struct usb_device *dev, |
| 329 | unsigned char *buffer, int cfgno) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 330 | { |
| 331 | struct usb_descriptor_header *head; |
Bartlomiej Sieka | 978333a | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 332 | int index, ifno, epno, curr_if_num; |
Tom Rini | 7342452 | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 333 | u16 ep_wMaxPacketSize; |
Vivek Gautam | 23cbd29 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 334 | struct usb_interface *if_desc = NULL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 335 | |
Bartlomiej Sieka | 978333a | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 336 | ifno = -1; |
| 337 | epno = -1; |
| 338 | curr_if_num = -1; |
| 339 | |
| 340 | dev->configno = cfgno; |
| 341 | head = (struct usb_descriptor_header *) &buffer[0]; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 342 | if (head->bDescriptorType != USB_DT_CONFIG) { |
| 343 | printf(" ERROR: NOT USB_CONFIG_DESC %x\n", |
| 344 | head->bDescriptorType); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 345 | return -1; |
| 346 | } |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 347 | if (head->bLength != USB_DT_CONFIG_SIZE) { |
| 348 | printf("ERROR: Invalid USB CFG length (%d)\n", head->bLength); |
| 349 | return -1; |
| 350 | } |
| 351 | memcpy(&dev->config, head, USB_DT_CONFIG_SIZE); |
Bartlomiej Sieka | 978333a | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 352 | dev->config.no_of_if = 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 353 | |
Tom Rix | 83b9e1d | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 354 | index = dev->config.desc.bLength; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 355 | /* Ok the first entry must be a configuration entry, |
| 356 | * now process the others */ |
Bartlomiej Sieka | 978333a | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 357 | head = (struct usb_descriptor_header *) &buffer[index]; |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 358 | while (index + 1 < dev->config.desc.wTotalLength && head->bLength) { |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 359 | switch (head->bDescriptorType) { |
| 360 | case USB_DT_INTERFACE: |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 361 | if (head->bLength != USB_DT_INTERFACE_SIZE) { |
| 362 | printf("ERROR: Invalid USB IF length (%d)\n", |
| 363 | head->bLength); |
| 364 | break; |
| 365 | } |
| 366 | if (index + USB_DT_INTERFACE_SIZE > |
| 367 | dev->config.desc.wTotalLength) { |
| 368 | puts("USB IF descriptor overflowed buffer!\n"); |
| 369 | break; |
| 370 | } |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 371 | if (((struct usb_interface_descriptor *) \ |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 372 | head)->bInterfaceNumber != curr_if_num) { |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 373 | /* this is a new interface, copy new desc */ |
| 374 | ifno = dev->config.no_of_if; |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 375 | if (ifno >= USB_MAXINTERFACES) { |
| 376 | puts("Too many USB interfaces!\n"); |
| 377 | /* try to go on with what we have */ |
| 378 | return 1; |
| 379 | } |
Vivek Gautam | 23cbd29 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 380 | if_desc = &dev->config.if_desc[ifno]; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 381 | dev->config.no_of_if++; |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 382 | memcpy(if_desc, head, |
| 383 | USB_DT_INTERFACE_SIZE); |
Vivek Gautam | 23cbd29 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 384 | if_desc->no_of_ep = 0; |
| 385 | if_desc->num_altsetting = 1; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 386 | curr_if_num = |
Vivek Gautam | 23cbd29 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 387 | if_desc->desc.bInterfaceNumber; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 388 | } else { |
| 389 | /* found alternate setting for the interface */ |
Vivek Gautam | 23cbd29 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 390 | if (ifno >= 0) { |
| 391 | if_desc = &dev->config.if_desc[ifno]; |
| 392 | if_desc->num_altsetting++; |
| 393 | } |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 394 | } |
| 395 | break; |
| 396 | case USB_DT_ENDPOINT: |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 397 | if (head->bLength != USB_DT_ENDPOINT_SIZE) { |
| 398 | printf("ERROR: Invalid USB EP length (%d)\n", |
| 399 | head->bLength); |
| 400 | break; |
| 401 | } |
| 402 | if (index + USB_DT_ENDPOINT_SIZE > |
| 403 | dev->config.desc.wTotalLength) { |
| 404 | puts("USB EP descriptor overflowed buffer!\n"); |
| 405 | break; |
| 406 | } |
| 407 | if (ifno < 0) { |
| 408 | puts("Endpoint descriptor out of order!\n"); |
| 409 | break; |
| 410 | } |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 411 | epno = dev->config.if_desc[ifno].no_of_ep; |
Vivek Gautam | 23cbd29 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 412 | if_desc = &dev->config.if_desc[ifno]; |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 413 | if (epno > USB_MAXENDPOINTS) { |
| 414 | printf("Interface %d has too many endpoints!\n", |
| 415 | if_desc->desc.bInterfaceNumber); |
| 416 | return 1; |
| 417 | } |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 418 | /* found an endpoint */ |
Vivek Gautam | 23cbd29 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 419 | if_desc->no_of_ep++; |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 420 | memcpy(&if_desc->ep_desc[epno], head, |
| 421 | USB_DT_ENDPOINT_SIZE); |
Tom Rini | 7342452 | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 422 | ep_wMaxPacketSize = get_unaligned(&dev->config.\ |
| 423 | if_desc[ifno].\ |
| 424 | ep_desc[epno].\ |
| 425 | wMaxPacketSize); |
| 426 | put_unaligned(le16_to_cpu(ep_wMaxPacketSize), |
| 427 | &dev->config.\ |
| 428 | if_desc[ifno].\ |
| 429 | ep_desc[epno].\ |
| 430 | wMaxPacketSize); |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 431 | debug("if %d, ep %d\n", ifno, epno); |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 432 | break; |
Vivek Gautam | df3f221 | 2013-04-12 16:34:38 +0530 | [diff] [blame] | 433 | case USB_DT_SS_ENDPOINT_COMP: |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 434 | if (head->bLength != USB_DT_SS_EP_COMP_SIZE) { |
| 435 | printf("ERROR: Invalid USB EPC length (%d)\n", |
| 436 | head->bLength); |
| 437 | break; |
| 438 | } |
| 439 | if (index + USB_DT_SS_EP_COMP_SIZE > |
| 440 | dev->config.desc.wTotalLength) { |
| 441 | puts("USB EPC descriptor overflowed buffer!\n"); |
| 442 | break; |
| 443 | } |
| 444 | if (ifno < 0 || epno < 0) { |
| 445 | puts("EPC descriptor out of order!\n"); |
| 446 | break; |
| 447 | } |
Vivek Gautam | df3f221 | 2013-04-12 16:34:38 +0530 | [diff] [blame] | 448 | if_desc = &dev->config.if_desc[ifno]; |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 449 | memcpy(&if_desc->ss_ep_comp_desc[epno], head, |
| 450 | USB_DT_SS_EP_COMP_SIZE); |
Vivek Gautam | df3f221 | 2013-04-12 16:34:38 +0530 | [diff] [blame] | 451 | break; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 452 | default: |
| 453 | if (head->bLength == 0) |
| 454 | return 1; |
| 455 | |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 456 | debug("unknown Description Type : %x\n", |
| 457 | head->bDescriptorType); |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 458 | |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 459 | #ifdef DEBUG |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 460 | { |
Wolfgang Denk | 2410348 | 2011-10-05 23:11:19 +0200 | [diff] [blame] | 461 | unsigned char *ch = (unsigned char *)head; |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 462 | int i; |
| 463 | |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 464 | for (i = 0; i < head->bLength; i++) |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 465 | debug("%02X ", *ch++); |
| 466 | debug("\n\n\n"); |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 467 | } |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 468 | #endif |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 469 | break; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 470 | } |
Bartlomiej Sieka | 978333a | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 471 | index += head->bLength; |
| 472 | head = (struct usb_descriptor_header *)&buffer[index]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 473 | } |
| 474 | return 1; |
| 475 | } |
| 476 | |
| 477 | /*********************************************************************** |
| 478 | * Clears an endpoint |
| 479 | * endp: endpoint number in bits 0-3; |
| 480 | * direction flag in bit 7 (1 = IN, 0 = OUT) |
| 481 | */ |
| 482 | int usb_clear_halt(struct usb_device *dev, int pipe) |
| 483 | { |
| 484 | int result; |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 485 | int endp = usb_pipeendpoint(pipe)|(usb_pipein(pipe)<<7); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 486 | |
| 487 | result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 488 | USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 0, |
| 489 | endp, NULL, 0, USB_CNTL_TIMEOUT * 3); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 490 | |
| 491 | /* don't clear if failed */ |
| 492 | if (result < 0) |
| 493 | return result; |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 494 | |
Wolfgang Denk | d06ce5d | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 495 | /* |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 496 | * NOTE: we do not get status and verify reset was successful |
| 497 | * as some devices are reported to lock up upon this check.. |
| 498 | */ |
| 499 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 500 | usb_endpoint_running(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)); |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 501 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 502 | /* toggle is reset on clear */ |
| 503 | usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 0); |
| 504 | return 0; |
| 505 | } |
| 506 | |
| 507 | |
| 508 | /********************************************************************** |
| 509 | * get_descriptor type |
| 510 | */ |
Marek Vasut | 3a16a6a | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 511 | static int usb_get_descriptor(struct usb_device *dev, unsigned char type, |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 512 | unsigned char index, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 513 | { |
| 514 | int res; |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 515 | res = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 516 | USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, |
| 517 | (type << 8) + index, 0, |
| 518 | buf, size, USB_CNTL_TIMEOUT); |
| 519 | return res; |
| 520 | } |
| 521 | |
| 522 | /********************************************************************** |
| 523 | * gets configuration cfgno and store it in the buffer |
| 524 | */ |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 525 | int usb_get_configuration_no(struct usb_device *dev, |
| 526 | unsigned char *buffer, int cfgno) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 527 | { |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 528 | int result; |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 529 | unsigned int length; |
Ilya Yanok | a1cf10f | 2012-11-06 13:48:20 +0000 | [diff] [blame] | 530 | struct usb_config_descriptor *config; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 531 | |
Ilya Yanok | a1cf10f | 2012-11-06 13:48:20 +0000 | [diff] [blame] | 532 | config = (struct usb_config_descriptor *)&buffer[0]; |
Remy Bohmer | 47e7208 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 533 | result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 9); |
| 534 | if (result < 9) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 535 | if (result < 0) |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 536 | printf("unable to get descriptor, error %lX\n", |
| 537 | dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 538 | else |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 539 | printf("config descriptor too short " \ |
Remy Bohmer | 47e7208 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 540 | "(expected %i, got %i)\n", 9, result); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 541 | return -1; |
| 542 | } |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 543 | length = le16_to_cpu(config->wTotalLength); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 544 | |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 545 | if (length > USB_BUFSIZ) { |
| 546 | printf("%s: failed to get descriptor - too long: %d\n", |
| 547 | __func__, length); |
wdenk | f70cbb2 | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 548 | return -1; |
| 549 | } |
| 550 | |
Julius Werner | fc4ec49 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 551 | result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, length); |
| 552 | debug("get_conf_no %d Result %d, wLength %d\n", cfgno, result, length); |
| 553 | config->wTotalLength = length; /* validated, with CPU byte order */ |
| 554 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 555 | return result; |
| 556 | } |
| 557 | |
| 558 | /******************************************************************** |
| 559 | * set address of a device to the value in dev->devnum. |
| 560 | * This can only be done by addressing the device via the default address (0) |
| 561 | */ |
Marek Vasut | 3a16a6a | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 562 | static int usb_set_address(struct usb_device *dev) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 563 | { |
| 564 | int res; |
| 565 | |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 566 | debug("set address %d\n", dev->devnum); |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 567 | res = usb_control_msg(dev, usb_snddefctrl(dev), |
| 568 | USB_REQ_SET_ADDRESS, 0, |
| 569 | (dev->devnum), 0, |
| 570 | NULL, 0, USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 571 | return res; |
| 572 | } |
| 573 | |
| 574 | /******************************************************************** |
| 575 | * set interface number to interface |
| 576 | */ |
| 577 | int usb_set_interface(struct usb_device *dev, int interface, int alternate) |
| 578 | { |
Tom Rix | 83b9e1d | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 579 | struct usb_interface *if_face = NULL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 580 | int ret, i; |
| 581 | |
Tom Rix | 83b9e1d | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 582 | for (i = 0; i < dev->config.desc.bNumInterfaces; i++) { |
| 583 | if (dev->config.if_desc[i].desc.bInterfaceNumber == interface) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 584 | if_face = &dev->config.if_desc[i]; |
| 585 | break; |
| 586 | } |
| 587 | } |
| 588 | if (!if_face) { |
| 589 | printf("selecting invalid interface %d", interface); |
| 590 | return -1; |
| 591 | } |
Bartlomiej Sieka | 978333a | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 592 | /* |
| 593 | * We should return now for devices with only one alternate setting. |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 594 | * According to 9.4.10 of the Universal Serial Bus Specification |
| 595 | * Revision 2.0 such devices can return with a STALL. This results in |
| 596 | * some USB sticks timeouting during initialization and then being |
| 597 | * unusable in U-Boot. |
Bartlomiej Sieka | 978333a | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 598 | */ |
| 599 | if (if_face->num_altsetting == 1) |
| 600 | return 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 601 | |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 602 | ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 603 | USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE, |
| 604 | alternate, interface, NULL, 0, |
| 605 | USB_CNTL_TIMEOUT * 5); |
| 606 | if (ret < 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 607 | return ret; |
| 608 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 609 | return 0; |
| 610 | } |
| 611 | |
| 612 | /******************************************************************** |
| 613 | * set configuration number to configuration |
| 614 | */ |
Marek Vasut | 3a16a6a | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 615 | static int usb_set_configuration(struct usb_device *dev, int configuration) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 616 | { |
| 617 | int res; |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 618 | debug("set configuration %d\n", configuration); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 619 | /* set setup command */ |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 620 | res = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 621 | USB_REQ_SET_CONFIGURATION, 0, |
| 622 | configuration, 0, |
| 623 | NULL, 0, USB_CNTL_TIMEOUT); |
| 624 | if (res == 0) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 625 | dev->toggle[0] = 0; |
| 626 | dev->toggle[1] = 0; |
| 627 | return 0; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 628 | } else |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 629 | return -1; |
| 630 | } |
| 631 | |
| 632 | /******************************************************************** |
| 633 | * set protocol to protocol |
| 634 | */ |
| 635 | int usb_set_protocol(struct usb_device *dev, int ifnum, int protocol) |
| 636 | { |
| 637 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 638 | USB_REQ_SET_PROTOCOL, USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 639 | protocol, ifnum, NULL, 0, USB_CNTL_TIMEOUT); |
| 640 | } |
| 641 | |
| 642 | /******************************************************************** |
| 643 | * set idle |
| 644 | */ |
| 645 | int usb_set_idle(struct usb_device *dev, int ifnum, int duration, int report_id) |
| 646 | { |
| 647 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 648 | USB_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 649 | (duration << 8) | report_id, ifnum, NULL, 0, USB_CNTL_TIMEOUT); |
| 650 | } |
| 651 | |
| 652 | /******************************************************************** |
| 653 | * get report |
| 654 | */ |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 655 | int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type, |
| 656 | unsigned char id, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 657 | { |
| 658 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 659 | USB_REQ_GET_REPORT, |
| 660 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 661 | (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 662 | } |
| 663 | |
| 664 | /******************************************************************** |
| 665 | * get class descriptor |
| 666 | */ |
| 667 | int usb_get_class_descriptor(struct usb_device *dev, int ifnum, |
| 668 | unsigned char type, unsigned char id, void *buf, int size) |
| 669 | { |
| 670 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 671 | USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN, |
| 672 | (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT); |
| 673 | } |
| 674 | |
| 675 | /******************************************************************** |
| 676 | * get string index in buffer |
| 677 | */ |
Marek Vasut | 3a16a6a | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 678 | static int usb_get_string(struct usb_device *dev, unsigned short langid, |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 679 | unsigned char index, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 680 | { |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 681 | int i; |
| 682 | int result; |
| 683 | |
| 684 | for (i = 0; i < 3; ++i) { |
| 685 | /* some devices are flaky */ |
| 686 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 687 | USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, |
Wolfgang Denk | d06ce5d | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 688 | (USB_DT_STRING << 8) + index, langid, buf, size, |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 689 | USB_CNTL_TIMEOUT); |
| 690 | |
| 691 | if (result > 0) |
| 692 | break; |
Wolfgang Denk | d06ce5d | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 693 | } |
| 694 | |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 695 | return result; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 696 | } |
| 697 | |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 698 | |
| 699 | static void usb_try_string_workarounds(unsigned char *buf, int *length) |
| 700 | { |
| 701 | int newlength, oldlength = *length; |
| 702 | |
| 703 | for (newlength = 2; newlength + 1 < oldlength; newlength += 2) |
| 704 | if (!isprint(buf[newlength]) || buf[newlength + 1]) |
| 705 | break; |
| 706 | |
| 707 | if (newlength > 2) { |
| 708 | buf[0] = newlength; |
| 709 | *length = newlength; |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | |
| 714 | static int usb_string_sub(struct usb_device *dev, unsigned int langid, |
| 715 | unsigned int index, unsigned char *buf) |
| 716 | { |
| 717 | int rc; |
| 718 | |
| 719 | /* Try to read the string descriptor by asking for the maximum |
| 720 | * possible number of bytes */ |
| 721 | rc = usb_get_string(dev, langid, index, buf, 255); |
| 722 | |
| 723 | /* If that failed try to read the descriptor length, then |
| 724 | * ask for just that many bytes */ |
| 725 | if (rc < 2) { |
| 726 | rc = usb_get_string(dev, langid, index, buf, 2); |
| 727 | if (rc == 2) |
| 728 | rc = usb_get_string(dev, langid, index, buf, buf[0]); |
| 729 | } |
| 730 | |
| 731 | if (rc >= 2) { |
| 732 | if (!buf[0] && !buf[1]) |
| 733 | usb_try_string_workarounds(buf, &rc); |
| 734 | |
| 735 | /* There might be extra junk at the end of the descriptor */ |
| 736 | if (buf[0] < rc) |
| 737 | rc = buf[0]; |
| 738 | |
| 739 | rc = rc - (rc & 1); /* force a multiple of two */ |
| 740 | } |
| 741 | |
| 742 | if (rc < 2) |
Wolfgang Denk | d06ce5d | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 743 | rc = -1; |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 744 | |
| 745 | return rc; |
| 746 | } |
| 747 | |
| 748 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 749 | /******************************************************************** |
| 750 | * usb_string: |
| 751 | * Get string index and translate it to ascii. |
| 752 | * returns string length (> 0) or error (< 0) |
| 753 | */ |
| 754 | int usb_string(struct usb_device *dev, int index, char *buf, size_t size) |
| 755 | { |
Puneet Saxena | 6c9bb60 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 756 | ALLOC_CACHE_ALIGN_BUFFER(unsigned char, mybuf, USB_BUFSIZ); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 757 | unsigned char *tbuf; |
| 758 | int err; |
| 759 | unsigned int u, idx; |
| 760 | |
| 761 | if (size <= 0 || !buf || !index) |
| 762 | return -1; |
| 763 | buf[0] = 0; |
Wolfgang Denk | dc770c7 | 2008-07-14 15:19:07 +0200 | [diff] [blame] | 764 | tbuf = &mybuf[0]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 765 | |
| 766 | /* get langid for strings if it's not yet known */ |
| 767 | if (!dev->have_langid) { |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 768 | err = usb_string_sub(dev, 0, 0, tbuf); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 769 | if (err < 0) { |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 770 | debug("error getting string descriptor 0 " \ |
| 771 | "(error=%lx)\n", dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 772 | return -1; |
| 773 | } else if (tbuf[0] < 4) { |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 774 | debug("string descriptor 0 too short\n"); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 775 | return -1; |
| 776 | } else { |
| 777 | dev->have_langid = -1; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 778 | dev->string_langid = tbuf[2] | (tbuf[3] << 8); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 779 | /* always use the first langid listed */ |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 780 | debug("USB device number %d default " \ |
| 781 | "language ID 0x%x\n", |
| 782 | dev->devnum, dev->string_langid); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 783 | } |
| 784 | } |
wdenk | f70cbb2 | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 785 | |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 786 | err = usb_string_sub(dev, dev->string_langid, index, tbuf); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 787 | if (err < 0) |
| 788 | return err; |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 789 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 790 | size--; /* leave room for trailing NULL char in output buffer */ |
| 791 | for (idx = 0, u = 2; u < err; u += 2) { |
| 792 | if (idx >= size) |
| 793 | break; |
| 794 | if (tbuf[u+1]) /* high byte */ |
| 795 | buf[idx++] = '?'; /* non-ASCII character */ |
| 796 | else |
| 797 | buf[idx++] = tbuf[u]; |
| 798 | } |
| 799 | buf[idx] = 0; |
| 800 | err = idx; |
| 801 | return err; |
| 802 | } |
| 803 | |
| 804 | |
| 805 | /******************************************************************** |
| 806 | * USB device handling: |
| 807 | * the USB device are static allocated [USB_MAX_DEVICE]. |
| 808 | */ |
| 809 | |
| 810 | |
| 811 | /* returns a pointer to the device with the index [index]. |
| 812 | * if the device is not assigned (dev->devnum==-1) returns NULL |
| 813 | */ |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 814 | struct usb_device *usb_get_dev_index(int index) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 815 | { |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 816 | if (usb_dev[index].devnum == -1) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 817 | return NULL; |
| 818 | else |
| 819 | return &usb_dev[index]; |
| 820 | } |
| 821 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 822 | /* returns a pointer of a new device structure or NULL, if |
| 823 | * no device struct is available |
| 824 | */ |
Lucas Stach | a323128 | 2012-09-26 00:14:34 +0200 | [diff] [blame] | 825 | struct usb_device *usb_alloc_new_device(void *controller) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 826 | { |
| 827 | int i; |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 828 | debug("New Device %d\n", dev_index); |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 829 | if (dev_index == USB_MAX_DEVICE) { |
| 830 | printf("ERROR, too many USB Devices, max=%d\n", USB_MAX_DEVICE); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 831 | return NULL; |
| 832 | } |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 833 | /* default Address is 0, real addresses start with 1 */ |
| 834 | usb_dev[dev_index].devnum = dev_index + 1; |
| 835 | usb_dev[dev_index].maxchild = 0; |
| 836 | for (i = 0; i < USB_MAXCHILDREN; i++) |
| 837 | usb_dev[dev_index].children[i] = NULL; |
| 838 | usb_dev[dev_index].parent = NULL; |
Lucas Stach | a323128 | 2012-09-26 00:14:34 +0200 | [diff] [blame] | 839 | usb_dev[dev_index].controller = controller; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 840 | dev_index++; |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 841 | return &usb_dev[dev_index - 1]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 842 | } |
| 843 | |
Milind Choudhary | ebb2478 | 2012-12-12 17:55:28 -0800 | [diff] [blame] | 844 | /* |
| 845 | * Free the newly created device node. |
| 846 | * Called in error cases where configuring a newly attached |
| 847 | * device fails for some reason. |
| 848 | */ |
| 849 | void usb_free_device(void) |
| 850 | { |
| 851 | dev_index--; |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 852 | debug("Freeing device node: %d\n", dev_index); |
Milind Choudhary | ebb2478 | 2012-12-12 17:55:28 -0800 | [diff] [blame] | 853 | memset(&usb_dev[dev_index], 0, sizeof(struct usb_device)); |
| 854 | usb_dev[dev_index].devnum = -1; |
| 855 | } |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 856 | |
| 857 | /* |
| 858 | * By the time we get here, the device has gotten a new device ID |
| 859 | * and is in the default state. We need to identify the thing and |
| 860 | * get the ball rolling.. |
| 861 | * |
| 862 | * Returns 0 for success, != 0 for error. |
| 863 | */ |
Marek Vasut | 6da5af3 | 2012-02-13 18:58:17 +0000 | [diff] [blame] | 864 | int usb_new_device(struct usb_device *dev) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 865 | { |
| 866 | int addr, err; |
| 867 | int tmp; |
Puneet Saxena | 6c9bb60 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 868 | ALLOC_CACHE_ALIGN_BUFFER(unsigned char, tmpbuf, USB_BUFSIZ); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 869 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 870 | /* We still haven't set the Address yet */ |
| 871 | addr = dev->devnum; |
| 872 | dev->devnum = 0; |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 873 | |
Remy Bohmer | aca9b6e | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 874 | #ifdef CONFIG_LEGACY_USB_INIT_SEQ |
| 875 | /* this is the old and known way of initializing devices, it is |
| 876 | * different than what Windows and Linux are doing. Windows and Linux |
| 877 | * both retrieve 64 bytes while reading the device descriptor |
| 878 | * Several USB stick devices report ERR: CTL_TIMEOUT, caused by an |
| 879 | * invalid header while reading 8 bytes as device descriptor. */ |
| 880 | dev->descriptor.bMaxPacketSize0 = 8; /* Start off at 8 bytes */ |
Remy Bohmer | 47e7208 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 881 | dev->maxpacketsize = PACKET_SIZE_8; |
Michael Trimarchi | 5f2e7fc | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 882 | dev->epmaxpacketin[0] = 8; |
Remy Bohmer | aca9b6e | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 883 | dev->epmaxpacketout[0] = 8; |
| 884 | |
Ilya Yanok | da87587 | 2012-07-15 04:43:50 +0000 | [diff] [blame] | 885 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, tmpbuf, 8); |
Remy Bohmer | aca9b6e | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 886 | if (err < 8) { |
| 887 | printf("\n USB device not responding, " \ |
Michael Trimarchi | 5f2e7fc | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 888 | "giving up (status=%lX)\n", dev->status); |
Remy Bohmer | aca9b6e | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 889 | return 1; |
| 890 | } |
Ilya Yanok | da87587 | 2012-07-15 04:43:50 +0000 | [diff] [blame] | 891 | memcpy(&dev->descriptor, tmpbuf, 8); |
Remy Bohmer | aca9b6e | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 892 | #else |
Remy Bohmer | 47e7208 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 893 | /* This is a Windows scheme of initialization sequence, with double |
| 894 | * reset of the device (Linux uses the same sequence) |
Remy Bohmer | aca9b6e | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 895 | * Some equipment is said to work only with such init sequence; this |
| 896 | * patch is based on the work by Alan Stern: |
Michael Trimarchi | 5f2e7fc | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 897 | * http://sourceforge.net/mailarchive/forum.php? |
| 898 | * thread_id=5729457&forum_id=5398 |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 899 | */ |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 900 | struct usb_device_descriptor *desc; |
| 901 | int port = -1; |
| 902 | struct usb_device *parent = dev->parent; |
| 903 | unsigned short portstatus; |
| 904 | |
| 905 | /* send 64-byte GET-DEVICE-DESCRIPTOR request. Since the descriptor is |
| 906 | * only 18 bytes long, this will terminate with a short packet. But if |
| 907 | * the maxpacket size is 8 or 16 the device may be waiting to transmit |
Remy Bohmer | aca9b6e | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 908 | * some more, or keeps on retransmitting the 8 byte header. */ |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 909 | |
| 910 | desc = (struct usb_device_descriptor *)tmpbuf; |
Remy Bohmer | aca9b6e | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 911 | dev->descriptor.bMaxPacketSize0 = 64; /* Start off at 64 bytes */ |
Remy Bohmer | 47e7208 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 912 | /* Default to 64 byte max packet size */ |
| 913 | dev->maxpacketsize = PACKET_SIZE_64; |
Michael Trimarchi | 5f2e7fc | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 914 | dev->epmaxpacketin[0] = 64; |
Remy Bohmer | aca9b6e | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 915 | dev->epmaxpacketout[0] = 64; |
Remy Bohmer | 47e7208 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 916 | |
| 917 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, 64); |
| 918 | if (err < 0) { |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 919 | debug("usb_new_device: usb_get_descriptor() failed\n"); |
Remy Bohmer | 47e7208 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 920 | return 1; |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 921 | } |
Remy Bohmer | 47e7208 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 922 | |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 923 | dev->descriptor.bMaxPacketSize0 = desc->bMaxPacketSize0; |
Vivek Gautam | de70166 | 2013-04-12 16:34:36 +0530 | [diff] [blame] | 924 | /* |
| 925 | * Fetch the device class, driver can use this info |
| 926 | * to differentiate between HUB and DEVICE. |
| 927 | */ |
| 928 | dev->descriptor.bDeviceClass = desc->bDeviceClass; |
Wolfgang Denk | d06ce5d | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 929 | |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 930 | /* find the port number we're at */ |
| 931 | if (parent) { |
Remy Bohmer | 47e7208 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 932 | int j; |
Wolfgang Denk | d06ce5d | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 933 | |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 934 | for (j = 0; j < parent->maxchild; j++) { |
| 935 | if (parent->children[j] == dev) { |
| 936 | port = j; |
| 937 | break; |
| 938 | } |
| 939 | } |
| 940 | if (port < 0) { |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 941 | printf("usb_new_device:cannot locate device's port.\n"); |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 942 | return 1; |
| 943 | } |
| 944 | |
| 945 | /* reset the port for the second time */ |
| 946 | err = hub_port_reset(dev->parent, port, &portstatus); |
| 947 | if (err < 0) { |
| 948 | printf("\n Couldn't reset port %i\n", port); |
| 949 | return 1; |
| 950 | } |
| 951 | } |
Wolfgang Denk | c7a4f7d | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 952 | #endif |
| 953 | |
Michael Trimarchi | 5f2e7fc | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 954 | dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 955 | dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0; |
| 956 | switch (dev->descriptor.bMaxPacketSize0) { |
Michael Trimarchi | 5f2e7fc | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 957 | case 8: |
| 958 | dev->maxpacketsize = PACKET_SIZE_8; |
| 959 | break; |
| 960 | case 16: |
| 961 | dev->maxpacketsize = PACKET_SIZE_16; |
| 962 | break; |
| 963 | case 32: |
| 964 | dev->maxpacketsize = PACKET_SIZE_32; |
| 965 | break; |
| 966 | case 64: |
| 967 | dev->maxpacketsize = PACKET_SIZE_64; |
| 968 | break; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 969 | } |
| 970 | dev->devnum = addr; |
| 971 | |
| 972 | err = usb_set_address(dev); /* set address */ |
| 973 | |
| 974 | if (err < 0) { |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 975 | printf("\n USB device not accepting new address " \ |
| 976 | "(error=%lX)\n", dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 977 | return 1; |
| 978 | } |
| 979 | |
Mike Frysinger | 60ce19a | 2012-03-05 13:47:00 +0000 | [diff] [blame] | 980 | mdelay(10); /* Let the SET_ADDRESS settle */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 981 | |
| 982 | tmp = sizeof(dev->descriptor); |
| 983 | |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 984 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, |
Ilya Yanok | da87587 | 2012-07-15 04:43:50 +0000 | [diff] [blame] | 985 | tmpbuf, sizeof(dev->descriptor)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 986 | if (err < tmp) { |
| 987 | if (err < 0) |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 988 | printf("unable to get device descriptor (error=%d)\n", |
| 989 | err); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 990 | else |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 991 | printf("USB device descriptor short read " \ |
| 992 | "(expected %i, got %i)\n", tmp, err); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 993 | return 1; |
| 994 | } |
Ilya Yanok | da87587 | 2012-07-15 04:43:50 +0000 | [diff] [blame] | 995 | memcpy(&dev->descriptor, tmpbuf, sizeof(dev->descriptor)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 996 | /* correct le values */ |
Christian Eggers | 4e0e8d0 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 997 | le16_to_cpus(&dev->descriptor.bcdUSB); |
| 998 | le16_to_cpus(&dev->descriptor.idVendor); |
| 999 | le16_to_cpus(&dev->descriptor.idProduct); |
| 1000 | le16_to_cpus(&dev->descriptor.bcdDevice); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1001 | /* only support for one config for now */ |
Vincent Palatin | 6a23866 | 2012-07-24 07:12:02 +0000 | [diff] [blame] | 1002 | err = usb_get_configuration_no(dev, tmpbuf, 0); |
| 1003 | if (err < 0) { |
| 1004 | printf("usb_new_device: Cannot read configuration, " \ |
| 1005 | "skipping device %04x:%04x\n", |
| 1006 | dev->descriptor.idVendor, dev->descriptor.idProduct); |
| 1007 | return -1; |
| 1008 | } |
Puneet Saxena | 6c9bb60 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 1009 | usb_parse_config(dev, tmpbuf, 0); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1010 | usb_set_maxpacket(dev); |
| 1011 | /* we set the default configuration here */ |
Tom Rix | 83b9e1d | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 1012 | if (usb_set_configuration(dev, dev->config.desc.bConfigurationValue)) { |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1013 | printf("failed to set default configuration " \ |
| 1014 | "len %d, status %lX\n", dev->act_len, dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1015 | return -1; |
| 1016 | } |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 1017 | debug("new device strings: Mfr=%d, Product=%d, SerialNumber=%d\n", |
| 1018 | dev->descriptor.iManufacturer, dev->descriptor.iProduct, |
| 1019 | dev->descriptor.iSerialNumber); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1020 | memset(dev->mf, 0, sizeof(dev->mf)); |
| 1021 | memset(dev->prod, 0, sizeof(dev->prod)); |
| 1022 | memset(dev->serial, 0, sizeof(dev->serial)); |
| 1023 | if (dev->descriptor.iManufacturer) |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1024 | usb_string(dev, dev->descriptor.iManufacturer, |
| 1025 | dev->mf, sizeof(dev->mf)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1026 | if (dev->descriptor.iProduct) |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1027 | usb_string(dev, dev->descriptor.iProduct, |
| 1028 | dev->prod, sizeof(dev->prod)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1029 | if (dev->descriptor.iSerialNumber) |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1030 | usb_string(dev, dev->descriptor.iSerialNumber, |
| 1031 | dev->serial, sizeof(dev->serial)); |
Vivek Gautam | f94c95d | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 1032 | debug("Manufacturer %s\n", dev->mf); |
| 1033 | debug("Product %s\n", dev->prod); |
| 1034 | debug("SerialNumber %s\n", dev->serial); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1035 | /* now prode if the device is a hub */ |
Remy Bohmer | 172a113 | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1036 | usb_hub_probe(dev, 0); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1037 | return 0; |
| 1038 | } |
| 1039 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1040 | /* EOF */ |