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 | 460c322 | 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 | 1a45966 | 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 | 66cf641 | 2012-04-04 18:44:53 +0000 | [diff] [blame] | 32 | #include <linux/compiler.h> |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 33 | #include <linux/ctype.h> |
Christian Eggers | c918261 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 34 | #include <asm/byteorder.h> |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 35 | #include <asm/unaligned.h> |
Marek Vasut | 97b9eb9 | 2014-08-01 03:09:53 +0200 | [diff] [blame] | 36 | #include <errno.h> |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 37 | #include <usb.h> |
| 38 | #ifdef CONFIG_4xx |
Stefan Roese | 3048bcb | 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 | cd0a9de | 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 | e51aae3 | 2006-08-03 23:20:13 +0200 | [diff] [blame] | 48 | char usb_started; /* flag for the started/stopped USB status */ |
| 49 | |
Lucas Stach | 93c2582 | 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 | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 59 | void *ctrl; |
| 60 | struct usb_device *dev; |
| 61 | int i, start_index = 0; |
Hans de Goede | d906bbc | 2015-01-11 20:34:46 +0100 | [diff] [blame] | 62 | int controllers_initialized = 0; |
Marek Vasut | 97b9eb9 | 2014-08-01 03:09:53 +0200 | [diff] [blame] | 63 | int ret; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 64 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 65 | dev_index = 0; |
| 66 | asynch_allowed = 1; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 67 | usb_hub_reset(); |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 68 | |
| 69 | /* first make all devices unknown */ |
| 70 | for (i = 0; i < USB_MAX_DEVICE; i++) { |
| 71 | memset(&usb_dev[i], 0, sizeof(struct usb_device)); |
| 72 | usb_dev[i].devnum = -1; |
| 73 | } |
| 74 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 75 | /* init low_level USB */ |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 76 | for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) { |
| 77 | /* init low_level USB */ |
| 78 | printf("USB%d: ", i); |
Marek Vasut | 97b9eb9 | 2014-08-01 03:09:53 +0200 | [diff] [blame] | 79 | ret = usb_lowlevel_init(i, USB_INIT_HOST, &ctrl); |
| 80 | if (ret == -ENODEV) { /* No such device. */ |
| 81 | puts("Port not available.\n"); |
Hans de Goede | d906bbc | 2015-01-11 20:34:46 +0100 | [diff] [blame] | 82 | controllers_initialized++; |
Marek Vasut | 97b9eb9 | 2014-08-01 03:09:53 +0200 | [diff] [blame] | 83 | continue; |
| 84 | } |
| 85 | |
| 86 | if (ret) { /* Other error. */ |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 87 | puts("lowlevel init failed\n"); |
| 88 | continue; |
| 89 | } |
| 90 | /* |
| 91 | * lowlevel init is OK, now scan the bus for devices |
| 92 | * i.e. search HUBs and configure them |
| 93 | */ |
Hans de Goede | d906bbc | 2015-01-11 20:34:46 +0100 | [diff] [blame] | 94 | controllers_initialized++; |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 95 | start_index = dev_index; |
| 96 | printf("scanning bus %d for devices... ", i); |
| 97 | dev = usb_alloc_new_device(ctrl); |
| 98 | /* |
| 99 | * device 0 is always present |
| 100 | * (root hub, so let it analyze) |
| 101 | */ |
| 102 | if (dev) |
| 103 | usb_new_device(dev); |
| 104 | |
| 105 | if (start_index == dev_index) |
| 106 | puts("No USB Device found\n"); |
| 107 | else |
| 108 | printf("%d USB Device(s) found\n", |
| 109 | dev_index - start_index); |
| 110 | |
Bartlomiej Sieka | e51aae3 | 2006-08-03 23:20:13 +0200 | [diff] [blame] | 111 | usb_started = 1; |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 112 | } |
| 113 | |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 114 | debug("scan end\n"); |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 115 | /* if we were not able to find at least one working bus, bail out */ |
Hans de Goede | d906bbc | 2015-01-11 20:34:46 +0100 | [diff] [blame] | 116 | if (controllers_initialized == 0) |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 117 | puts("USB error: all controllers failed lowlevel init\n"); |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 118 | |
Hans de Goede | d906bbc | 2015-01-11 20:34:46 +0100 | [diff] [blame] | 119 | return usb_started ? 0 : -1; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 120 | } |
| 121 | |
| 122 | /****************************************************************************** |
| 123 | * Stop USB this stops the LowLevel Part and deregisters USB devices. |
| 124 | */ |
| 125 | int usb_stop(void) |
| 126 | { |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 127 | int i; |
Remy Bohmer | eba1f2f | 2008-08-20 11:22:02 +0200 | [diff] [blame] | 128 | |
| 129 | if (usb_started) { |
| 130 | asynch_allowed = 1; |
| 131 | usb_started = 0; |
| 132 | usb_hub_reset(); |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 133 | |
| 134 | for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) { |
| 135 | if (usb_lowlevel_stop(i)) |
| 136 | printf("failed to stop USB controller %d\n", i); |
| 137 | } |
Remy Bohmer | eba1f2f | 2008-08-20 11:22:02 +0200 | [diff] [blame] | 138 | } |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 139 | |
| 140 | return 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 141 | } |
| 142 | |
| 143 | /* |
| 144 | * disables the asynch behaviour of the control message. This is used for data |
| 145 | * transfers that uses the exclusiv access to the control and bulk messages. |
Simon Glass | 89d4836 | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 146 | * Returns the old value so it can be restored later. |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 147 | */ |
Simon Glass | 89d4836 | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 148 | int usb_disable_asynch(int disable) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 149 | { |
Simon Glass | 89d4836 | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 150 | int old_value = asynch_allowed; |
| 151 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 152 | asynch_allowed = !disable; |
Simon Glass | 89d4836 | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 153 | return old_value; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 154 | } |
| 155 | |
| 156 | |
| 157 | /*------------------------------------------------------------------- |
| 158 | * Message wrappers. |
| 159 | * |
| 160 | */ |
| 161 | |
| 162 | /* |
| 163 | * submits an Interrupt Message |
| 164 | */ |
| 165 | int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe, |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 166 | void *buffer, int transfer_len, int interval) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 167 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 168 | return submit_int_msg(dev, pipe, buffer, transfer_len, interval); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 169 | } |
| 170 | |
| 171 | /* |
| 172 | * submits a control message and waits for comletion (at least timeout * 1ms) |
| 173 | * If timeout is 0, we don't wait for completion (used as example to set and |
| 174 | * clear keyboards LEDs). For data transfers, (storage transfers) we don't |
| 175 | * allow control messages with 0 timeout, by previousely resetting the flag |
| 176 | * asynch_allowed (usb_disable_asynch(1)). |
| 177 | * returns the transfered length if OK or -1 if error. The transfered length |
| 178 | * and the current status are stored in the dev->act_len and dev->status. |
| 179 | */ |
| 180 | int usb_control_msg(struct usb_device *dev, unsigned int pipe, |
| 181 | unsigned char request, unsigned char requesttype, |
| 182 | unsigned short value, unsigned short index, |
| 183 | void *data, unsigned short size, int timeout) |
| 184 | { |
Puneet Saxena | f576613 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 185 | ALLOC_CACHE_ALIGN_BUFFER(struct devrequest, setup_packet, 1); |
Marek Vasut | e159e48 | 2012-02-13 18:58:18 +0000 | [diff] [blame] | 186 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 187 | if ((timeout == 0) && (!asynch_allowed)) { |
| 188 | /* request for a asynch control pipe is not allowed */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 189 | return -1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 190 | } |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 191 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 192 | /* set setup command */ |
Puneet Saxena | f576613 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 193 | setup_packet->requesttype = requesttype; |
| 194 | setup_packet->request = request; |
| 195 | setup_packet->value = cpu_to_le16(value); |
| 196 | setup_packet->index = cpu_to_le16(index); |
| 197 | setup_packet->length = cpu_to_le16(size); |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 198 | debug("usb_control_msg: request: 0x%X, requesttype: 0x%X, " \ |
| 199 | "value 0x%X index 0x%X length 0x%X\n", |
| 200 | request, requesttype, value, index, size); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 201 | dev->status = USB_ST_NOT_PROC; /*not yet processed */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 202 | |
Ilya Yanok | fd06028 | 2012-07-15 04:43:51 +0000 | [diff] [blame] | 203 | if (submit_control_msg(dev, pipe, data, size, setup_packet) < 0) |
| 204 | return -1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 205 | if (timeout == 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 206 | return (int)size; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 207 | |
Remy Bohmer | 84d36b3 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 208 | /* |
| 209 | * Wait for status to update until timeout expires, USB driver |
| 210 | * interrupt handler may set the status when the USB operation has |
| 211 | * been completed. |
| 212 | */ |
| 213 | while (timeout--) { |
| 214 | if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) |
| 215 | break; |
Mike Frysinger | 5b84dd6 | 2012-03-05 13:47:00 +0000 | [diff] [blame] | 216 | mdelay(1); |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 217 | } |
Remy Bohmer | 84d36b3 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 218 | if (dev->status) |
| 219 | return -1; |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 220 | |
| 221 | return dev->act_len; |
Remy Bohmer | 84d36b3 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 222 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 223 | } |
| 224 | |
| 225 | /*------------------------------------------------------------------- |
| 226 | * submits bulk message, and waits for completion. returns 0 if Ok or |
| 227 | * -1 if Error. |
| 228 | * synchronous behavior |
| 229 | */ |
| 230 | int usb_bulk_msg(struct usb_device *dev, unsigned int pipe, |
| 231 | void *data, int len, int *actual_length, int timeout) |
| 232 | { |
| 233 | if (len < 0) |
| 234 | return -1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 235 | dev->status = USB_ST_NOT_PROC; /*not yet processed */ |
Ilya Yanok | fd06028 | 2012-07-15 04:43:51 +0000 | [diff] [blame] | 236 | if (submit_bulk_msg(dev, pipe, data, len) < 0) |
| 237 | return -1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 238 | while (timeout--) { |
| 239 | if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 240 | break; |
Mike Frysinger | 5b84dd6 | 2012-03-05 13:47:00 +0000 | [diff] [blame] | 241 | mdelay(1); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 242 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 243 | *actual_length = dev->act_len; |
| 244 | if (dev->status == 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 245 | return 0; |
| 246 | else |
| 247 | return -1; |
| 248 | } |
| 249 | |
| 250 | |
| 251 | /*------------------------------------------------------------------- |
| 252 | * Max Packet stuff |
| 253 | */ |
| 254 | |
| 255 | /* |
| 256 | * returns the max packet size, depending on the pipe direction and |
| 257 | * the configurations values |
| 258 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 259 | int usb_maxpacket(struct usb_device *dev, unsigned long pipe) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 260 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 261 | /* direction is out -> use emaxpacket out */ |
| 262 | if ((pipe & USB_DIR_IN) == 0) |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 263 | return dev->epmaxpacketout[((pipe>>15) & 0xf)]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 264 | else |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 265 | return dev->epmaxpacketin[((pipe>>15) & 0xf)]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 266 | } |
| 267 | |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 268 | /* |
| 269 | * The routine usb_set_maxpacket_ep() is extracted from the loop of routine |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 270 | * usb_set_maxpacket(), because the optimizer of GCC 4.x chokes on this routine |
| 271 | * when it is inlined in 1 single routine. What happens is that the register r3 |
| 272 | * is used as loop-count 'i', but gets overwritten later on. |
| 273 | * This is clearly a compiler bug, but it is easier to workaround it here than |
| 274 | * to update the compiler (Occurs with at least several GCC 4.{1,2},x |
| 275 | * CodeSourcery compilers like e.g. 2007q3, 2008q1, 2008q3 lite editions on ARM) |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 276 | * |
| 277 | * NOTE: Similar behaviour was observed with GCC4.6 on ARMv5. |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 278 | */ |
Mike Frysinger | 66cf641 | 2012-04-04 18:44:53 +0000 | [diff] [blame] | 279 | static void noinline |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 280 | usb_set_maxpacket_ep(struct usb_device *dev, int if_idx, int ep_idx) |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 281 | { |
| 282 | int b; |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 283 | struct usb_endpoint_descriptor *ep; |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 284 | u16 ep_wMaxPacketSize; |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 285 | |
| 286 | ep = &dev->config.if_desc[if_idx].ep_desc[ep_idx]; |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 287 | |
| 288 | b = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 289 | ep_wMaxPacketSize = get_unaligned(&ep->wMaxPacketSize); |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 290 | |
| 291 | if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == |
| 292 | USB_ENDPOINT_XFER_CONTROL) { |
| 293 | /* Control => bidirectional */ |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 294 | dev->epmaxpacketout[b] = ep_wMaxPacketSize; |
| 295 | dev->epmaxpacketin[b] = ep_wMaxPacketSize; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 296 | debug("##Control EP epmaxpacketout/in[%d] = %d\n", |
| 297 | b, dev->epmaxpacketin[b]); |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 298 | } else { |
| 299 | if ((ep->bEndpointAddress & 0x80) == 0) { |
| 300 | /* OUT Endpoint */ |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 301 | if (ep_wMaxPacketSize > dev->epmaxpacketout[b]) { |
| 302 | dev->epmaxpacketout[b] = ep_wMaxPacketSize; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 303 | debug("##EP epmaxpacketout[%d] = %d\n", |
| 304 | b, dev->epmaxpacketout[b]); |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 305 | } |
| 306 | } else { |
| 307 | /* IN Endpoint */ |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 308 | if (ep_wMaxPacketSize > dev->epmaxpacketin[b]) { |
| 309 | dev->epmaxpacketin[b] = ep_wMaxPacketSize; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 310 | debug("##EP epmaxpacketin[%d] = %d\n", |
| 311 | b, dev->epmaxpacketin[b]); |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 312 | } |
| 313 | } /* if out */ |
| 314 | } /* if control */ |
| 315 | } |
| 316 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 317 | /* |
| 318 | * set the max packed value of all endpoints in the given configuration |
| 319 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 320 | static int usb_set_maxpacket(struct usb_device *dev) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 321 | { |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 322 | int i, ii; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 323 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 324 | for (i = 0; i < dev->config.desc.bNumInterfaces; i++) |
| 325 | for (ii = 0; ii < dev->config.if_desc[i].desc.bNumEndpoints; ii++) |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 326 | usb_set_maxpacket_ep(dev, i, ii); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 327 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 328 | return 0; |
| 329 | } |
| 330 | |
| 331 | /******************************************************************************* |
| 332 | * Parse the config, located in buffer, and fills the dev->config structure. |
| 333 | * Note that all little/big endian swapping are done automatically. |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 334 | * (wTotalLength has already been swapped and sanitized when it was read.) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 335 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 336 | static int usb_parse_config(struct usb_device *dev, |
| 337 | unsigned char *buffer, int cfgno) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 338 | { |
| 339 | struct usb_descriptor_header *head; |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 340 | int index, ifno, epno, curr_if_num; |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 341 | u16 ep_wMaxPacketSize; |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 342 | struct usb_interface *if_desc = NULL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 343 | |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 344 | ifno = -1; |
| 345 | epno = -1; |
| 346 | curr_if_num = -1; |
| 347 | |
| 348 | dev->configno = cfgno; |
| 349 | head = (struct usb_descriptor_header *) &buffer[0]; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 350 | if (head->bDescriptorType != USB_DT_CONFIG) { |
| 351 | printf(" ERROR: NOT USB_CONFIG_DESC %x\n", |
| 352 | head->bDescriptorType); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 353 | return -1; |
| 354 | } |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 355 | if (head->bLength != USB_DT_CONFIG_SIZE) { |
| 356 | printf("ERROR: Invalid USB CFG length (%d)\n", head->bLength); |
| 357 | return -1; |
| 358 | } |
| 359 | memcpy(&dev->config, head, USB_DT_CONFIG_SIZE); |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 360 | dev->config.no_of_if = 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 361 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 362 | index = dev->config.desc.bLength; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 363 | /* Ok the first entry must be a configuration entry, |
| 364 | * now process the others */ |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 365 | head = (struct usb_descriptor_header *) &buffer[index]; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 366 | while (index + 1 < dev->config.desc.wTotalLength && head->bLength) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 367 | switch (head->bDescriptorType) { |
| 368 | case USB_DT_INTERFACE: |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 369 | if (head->bLength != USB_DT_INTERFACE_SIZE) { |
| 370 | printf("ERROR: Invalid USB IF length (%d)\n", |
| 371 | head->bLength); |
| 372 | break; |
| 373 | } |
| 374 | if (index + USB_DT_INTERFACE_SIZE > |
| 375 | dev->config.desc.wTotalLength) { |
| 376 | puts("USB IF descriptor overflowed buffer!\n"); |
| 377 | break; |
| 378 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 379 | if (((struct usb_interface_descriptor *) \ |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 380 | head)->bInterfaceNumber != curr_if_num) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 381 | /* this is a new interface, copy new desc */ |
| 382 | ifno = dev->config.no_of_if; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 383 | if (ifno >= USB_MAXINTERFACES) { |
| 384 | puts("Too many USB interfaces!\n"); |
| 385 | /* try to go on with what we have */ |
| 386 | return 1; |
| 387 | } |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 388 | if_desc = &dev->config.if_desc[ifno]; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 389 | dev->config.no_of_if++; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 390 | memcpy(if_desc, head, |
| 391 | USB_DT_INTERFACE_SIZE); |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 392 | if_desc->no_of_ep = 0; |
| 393 | if_desc->num_altsetting = 1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 394 | curr_if_num = |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 395 | if_desc->desc.bInterfaceNumber; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 396 | } else { |
| 397 | /* found alternate setting for the interface */ |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 398 | if (ifno >= 0) { |
| 399 | if_desc = &dev->config.if_desc[ifno]; |
| 400 | if_desc->num_altsetting++; |
| 401 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 402 | } |
| 403 | break; |
| 404 | case USB_DT_ENDPOINT: |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 405 | if (head->bLength != USB_DT_ENDPOINT_SIZE) { |
| 406 | printf("ERROR: Invalid USB EP length (%d)\n", |
| 407 | head->bLength); |
| 408 | break; |
| 409 | } |
| 410 | if (index + USB_DT_ENDPOINT_SIZE > |
| 411 | dev->config.desc.wTotalLength) { |
| 412 | puts("USB EP descriptor overflowed buffer!\n"); |
| 413 | break; |
| 414 | } |
| 415 | if (ifno < 0) { |
| 416 | puts("Endpoint descriptor out of order!\n"); |
| 417 | break; |
| 418 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 419 | epno = dev->config.if_desc[ifno].no_of_ep; |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 420 | if_desc = &dev->config.if_desc[ifno]; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 421 | if (epno > USB_MAXENDPOINTS) { |
| 422 | printf("Interface %d has too many endpoints!\n", |
| 423 | if_desc->desc.bInterfaceNumber); |
| 424 | return 1; |
| 425 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 426 | /* found an endpoint */ |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 427 | if_desc->no_of_ep++; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 428 | memcpy(&if_desc->ep_desc[epno], head, |
| 429 | USB_DT_ENDPOINT_SIZE); |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 430 | ep_wMaxPacketSize = get_unaligned(&dev->config.\ |
| 431 | if_desc[ifno].\ |
| 432 | ep_desc[epno].\ |
| 433 | wMaxPacketSize); |
| 434 | put_unaligned(le16_to_cpu(ep_wMaxPacketSize), |
| 435 | &dev->config.\ |
| 436 | if_desc[ifno].\ |
| 437 | ep_desc[epno].\ |
| 438 | wMaxPacketSize); |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 439 | debug("if %d, ep %d\n", ifno, epno); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 440 | break; |
Vivek Gautam | 6497c66 | 2013-04-12 16:34:38 +0530 | [diff] [blame] | 441 | case USB_DT_SS_ENDPOINT_COMP: |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 442 | if (head->bLength != USB_DT_SS_EP_COMP_SIZE) { |
| 443 | printf("ERROR: Invalid USB EPC length (%d)\n", |
| 444 | head->bLength); |
| 445 | break; |
| 446 | } |
| 447 | if (index + USB_DT_SS_EP_COMP_SIZE > |
| 448 | dev->config.desc.wTotalLength) { |
| 449 | puts("USB EPC descriptor overflowed buffer!\n"); |
| 450 | break; |
| 451 | } |
| 452 | if (ifno < 0 || epno < 0) { |
| 453 | puts("EPC descriptor out of order!\n"); |
| 454 | break; |
| 455 | } |
Vivek Gautam | 6497c66 | 2013-04-12 16:34:38 +0530 | [diff] [blame] | 456 | if_desc = &dev->config.if_desc[ifno]; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 457 | memcpy(&if_desc->ss_ep_comp_desc[epno], head, |
| 458 | USB_DT_SS_EP_COMP_SIZE); |
Vivek Gautam | 6497c66 | 2013-04-12 16:34:38 +0530 | [diff] [blame] | 459 | break; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 460 | default: |
| 461 | if (head->bLength == 0) |
| 462 | return 1; |
| 463 | |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 464 | debug("unknown Description Type : %x\n", |
| 465 | head->bDescriptorType); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 466 | |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 467 | #ifdef DEBUG |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 468 | { |
Wolfgang Denk | fad2e1b | 2011-10-05 23:11:19 +0200 | [diff] [blame] | 469 | unsigned char *ch = (unsigned char *)head; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 470 | int i; |
| 471 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 472 | for (i = 0; i < head->bLength; i++) |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 473 | debug("%02X ", *ch++); |
| 474 | debug("\n\n\n"); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 475 | } |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 476 | #endif |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 477 | break; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 478 | } |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 479 | index += head->bLength; |
| 480 | head = (struct usb_descriptor_header *)&buffer[index]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 481 | } |
| 482 | return 1; |
| 483 | } |
| 484 | |
| 485 | /*********************************************************************** |
| 486 | * Clears an endpoint |
| 487 | * endp: endpoint number in bits 0-3; |
| 488 | * direction flag in bit 7 (1 = IN, 0 = OUT) |
| 489 | */ |
| 490 | int usb_clear_halt(struct usb_device *dev, int pipe) |
| 491 | { |
| 492 | int result; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 493 | int endp = usb_pipeendpoint(pipe)|(usb_pipein(pipe)<<7); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 494 | |
| 495 | result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 496 | USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 0, |
| 497 | endp, NULL, 0, USB_CNTL_TIMEOUT * 3); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 498 | |
| 499 | /* don't clear if failed */ |
| 500 | if (result < 0) |
| 501 | return result; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 502 | |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 503 | /* |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 504 | * NOTE: we do not get status and verify reset was successful |
| 505 | * as some devices are reported to lock up upon this check.. |
| 506 | */ |
| 507 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 508 | usb_endpoint_running(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)); |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 509 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 510 | /* toggle is reset on clear */ |
| 511 | usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 0); |
| 512 | return 0; |
| 513 | } |
| 514 | |
| 515 | |
| 516 | /********************************************************************** |
| 517 | * get_descriptor type |
| 518 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 519 | static int usb_get_descriptor(struct usb_device *dev, unsigned char type, |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 520 | unsigned char index, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 521 | { |
| 522 | int res; |
Wolfgang Denk | 53677ef | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 523 | res = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 524 | USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, |
| 525 | (type << 8) + index, 0, |
| 526 | buf, size, USB_CNTL_TIMEOUT); |
| 527 | return res; |
| 528 | } |
| 529 | |
| 530 | /********************************************************************** |
| 531 | * gets configuration cfgno and store it in the buffer |
| 532 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 533 | int usb_get_configuration_no(struct usb_device *dev, |
| 534 | unsigned char *buffer, int cfgno) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 535 | { |
Wolfgang Denk | 53677ef | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 536 | int result; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 537 | unsigned int length; |
Ilya Yanok | c60795f | 2012-11-06 13:48:20 +0000 | [diff] [blame] | 538 | struct usb_config_descriptor *config; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 539 | |
Ilya Yanok | c60795f | 2012-11-06 13:48:20 +0000 | [diff] [blame] | 540 | config = (struct usb_config_descriptor *)&buffer[0]; |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 541 | result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 9); |
| 542 | if (result < 9) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 543 | if (result < 0) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 544 | printf("unable to get descriptor, error %lX\n", |
| 545 | dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 546 | else |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 547 | printf("config descriptor too short " \ |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 548 | "(expected %i, got %i)\n", 9, result); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 549 | return -1; |
| 550 | } |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 551 | length = le16_to_cpu(config->wTotalLength); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 552 | |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 553 | if (length > USB_BUFSIZ) { |
| 554 | printf("%s: failed to get descriptor - too long: %d\n", |
| 555 | __func__, length); |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 556 | return -1; |
| 557 | } |
| 558 | |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 559 | result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, length); |
| 560 | debug("get_conf_no %d Result %d, wLength %d\n", cfgno, result, length); |
| 561 | config->wTotalLength = length; /* validated, with CPU byte order */ |
| 562 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 563 | return result; |
| 564 | } |
| 565 | |
| 566 | /******************************************************************** |
| 567 | * set address of a device to the value in dev->devnum. |
| 568 | * This can only be done by addressing the device via the default address (0) |
| 569 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 570 | static int usb_set_address(struct usb_device *dev) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 571 | { |
| 572 | int res; |
| 573 | |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 574 | debug("set address %d\n", dev->devnum); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 575 | res = usb_control_msg(dev, usb_snddefctrl(dev), |
| 576 | USB_REQ_SET_ADDRESS, 0, |
| 577 | (dev->devnum), 0, |
| 578 | NULL, 0, USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 579 | return res; |
| 580 | } |
| 581 | |
| 582 | /******************************************************************** |
| 583 | * set interface number to interface |
| 584 | */ |
| 585 | int usb_set_interface(struct usb_device *dev, int interface, int alternate) |
| 586 | { |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 587 | struct usb_interface *if_face = NULL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 588 | int ret, i; |
| 589 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 590 | for (i = 0; i < dev->config.desc.bNumInterfaces; i++) { |
| 591 | if (dev->config.if_desc[i].desc.bInterfaceNumber == interface) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 592 | if_face = &dev->config.if_desc[i]; |
| 593 | break; |
| 594 | } |
| 595 | } |
| 596 | if (!if_face) { |
| 597 | printf("selecting invalid interface %d", interface); |
| 598 | return -1; |
| 599 | } |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 600 | /* |
| 601 | * We should return now for devices with only one alternate setting. |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 602 | * According to 9.4.10 of the Universal Serial Bus Specification |
| 603 | * Revision 2.0 such devices can return with a STALL. This results in |
| 604 | * some USB sticks timeouting during initialization and then being |
| 605 | * unusable in U-Boot. |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 606 | */ |
| 607 | if (if_face->num_altsetting == 1) |
| 608 | return 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 609 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 610 | ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 611 | USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE, |
| 612 | alternate, interface, NULL, 0, |
| 613 | USB_CNTL_TIMEOUT * 5); |
| 614 | if (ret < 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 615 | return ret; |
| 616 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 617 | return 0; |
| 618 | } |
| 619 | |
| 620 | /******************************************************************** |
| 621 | * set configuration number to configuration |
| 622 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 623 | static int usb_set_configuration(struct usb_device *dev, int configuration) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 624 | { |
| 625 | int res; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 626 | debug("set configuration %d\n", configuration); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 627 | /* set setup command */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 628 | res = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 629 | USB_REQ_SET_CONFIGURATION, 0, |
| 630 | configuration, 0, |
| 631 | NULL, 0, USB_CNTL_TIMEOUT); |
| 632 | if (res == 0) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 633 | dev->toggle[0] = 0; |
| 634 | dev->toggle[1] = 0; |
| 635 | return 0; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 636 | } else |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 637 | return -1; |
| 638 | } |
| 639 | |
| 640 | /******************************************************************** |
| 641 | * set protocol to protocol |
| 642 | */ |
| 643 | int usb_set_protocol(struct usb_device *dev, int ifnum, int protocol) |
| 644 | { |
| 645 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 646 | USB_REQ_SET_PROTOCOL, USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 647 | protocol, ifnum, NULL, 0, USB_CNTL_TIMEOUT); |
| 648 | } |
| 649 | |
| 650 | /******************************************************************** |
| 651 | * set idle |
| 652 | */ |
| 653 | int usb_set_idle(struct usb_device *dev, int ifnum, int duration, int report_id) |
| 654 | { |
| 655 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 656 | USB_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 657 | (duration << 8) | report_id, ifnum, NULL, 0, USB_CNTL_TIMEOUT); |
| 658 | } |
| 659 | |
| 660 | /******************************************************************** |
| 661 | * get report |
| 662 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 663 | int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type, |
| 664 | unsigned char id, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 665 | { |
| 666 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 667 | USB_REQ_GET_REPORT, |
| 668 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 669 | (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 670 | } |
| 671 | |
| 672 | /******************************************************************** |
| 673 | * get class descriptor |
| 674 | */ |
| 675 | int usb_get_class_descriptor(struct usb_device *dev, int ifnum, |
| 676 | unsigned char type, unsigned char id, void *buf, int size) |
| 677 | { |
| 678 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 679 | USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN, |
| 680 | (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT); |
| 681 | } |
| 682 | |
| 683 | /******************************************************************** |
| 684 | * get string index in buffer |
| 685 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 686 | static int usb_get_string(struct usb_device *dev, unsigned short langid, |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 687 | unsigned char index, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 688 | { |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 689 | int i; |
| 690 | int result; |
| 691 | |
| 692 | for (i = 0; i < 3; ++i) { |
| 693 | /* some devices are flaky */ |
| 694 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 695 | USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 696 | (USB_DT_STRING << 8) + index, langid, buf, size, |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 697 | USB_CNTL_TIMEOUT); |
| 698 | |
| 699 | if (result > 0) |
| 700 | break; |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 701 | } |
| 702 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 703 | return result; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 704 | } |
| 705 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 706 | |
| 707 | static void usb_try_string_workarounds(unsigned char *buf, int *length) |
| 708 | { |
| 709 | int newlength, oldlength = *length; |
| 710 | |
| 711 | for (newlength = 2; newlength + 1 < oldlength; newlength += 2) |
| 712 | if (!isprint(buf[newlength]) || buf[newlength + 1]) |
| 713 | break; |
| 714 | |
| 715 | if (newlength > 2) { |
| 716 | buf[0] = newlength; |
| 717 | *length = newlength; |
| 718 | } |
| 719 | } |
| 720 | |
| 721 | |
| 722 | static int usb_string_sub(struct usb_device *dev, unsigned int langid, |
| 723 | unsigned int index, unsigned char *buf) |
| 724 | { |
| 725 | int rc; |
| 726 | |
| 727 | /* Try to read the string descriptor by asking for the maximum |
| 728 | * possible number of bytes */ |
| 729 | rc = usb_get_string(dev, langid, index, buf, 255); |
| 730 | |
| 731 | /* If that failed try to read the descriptor length, then |
| 732 | * ask for just that many bytes */ |
| 733 | if (rc < 2) { |
| 734 | rc = usb_get_string(dev, langid, index, buf, 2); |
| 735 | if (rc == 2) |
| 736 | rc = usb_get_string(dev, langid, index, buf, buf[0]); |
| 737 | } |
| 738 | |
| 739 | if (rc >= 2) { |
| 740 | if (!buf[0] && !buf[1]) |
| 741 | usb_try_string_workarounds(buf, &rc); |
| 742 | |
| 743 | /* There might be extra junk at the end of the descriptor */ |
| 744 | if (buf[0] < rc) |
| 745 | rc = buf[0]; |
| 746 | |
| 747 | rc = rc - (rc & 1); /* force a multiple of two */ |
| 748 | } |
| 749 | |
| 750 | if (rc < 2) |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 751 | rc = -1; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 752 | |
| 753 | return rc; |
| 754 | } |
| 755 | |
| 756 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 757 | /******************************************************************** |
| 758 | * usb_string: |
| 759 | * Get string index and translate it to ascii. |
| 760 | * returns string length (> 0) or error (< 0) |
| 761 | */ |
| 762 | int usb_string(struct usb_device *dev, int index, char *buf, size_t size) |
| 763 | { |
Puneet Saxena | f576613 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 764 | ALLOC_CACHE_ALIGN_BUFFER(unsigned char, mybuf, USB_BUFSIZ); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 765 | unsigned char *tbuf; |
| 766 | int err; |
| 767 | unsigned int u, idx; |
| 768 | |
| 769 | if (size <= 0 || !buf || !index) |
| 770 | return -1; |
| 771 | buf[0] = 0; |
Wolfgang Denk | d0ff51b | 2008-07-14 15:19:07 +0200 | [diff] [blame] | 772 | tbuf = &mybuf[0]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 773 | |
| 774 | /* get langid for strings if it's not yet known */ |
| 775 | if (!dev->have_langid) { |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 776 | err = usb_string_sub(dev, 0, 0, tbuf); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 777 | if (err < 0) { |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 778 | debug("error getting string descriptor 0 " \ |
| 779 | "(error=%lx)\n", dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 780 | return -1; |
| 781 | } else if (tbuf[0] < 4) { |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 782 | debug("string descriptor 0 too short\n"); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 783 | return -1; |
| 784 | } else { |
| 785 | dev->have_langid = -1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 786 | dev->string_langid = tbuf[2] | (tbuf[3] << 8); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 787 | /* always use the first langid listed */ |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 788 | debug("USB device number %d default " \ |
| 789 | "language ID 0x%x\n", |
| 790 | dev->devnum, dev->string_langid); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 791 | } |
| 792 | } |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 793 | |
| 794 | err = usb_string_sub(dev, dev->string_langid, index, tbuf); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 795 | if (err < 0) |
| 796 | return err; |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 797 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 798 | size--; /* leave room for trailing NULL char in output buffer */ |
| 799 | for (idx = 0, u = 2; u < err; u += 2) { |
| 800 | if (idx >= size) |
| 801 | break; |
| 802 | if (tbuf[u+1]) /* high byte */ |
| 803 | buf[idx++] = '?'; /* non-ASCII character */ |
| 804 | else |
| 805 | buf[idx++] = tbuf[u]; |
| 806 | } |
| 807 | buf[idx] = 0; |
| 808 | err = idx; |
| 809 | return err; |
| 810 | } |
| 811 | |
| 812 | |
| 813 | /******************************************************************** |
| 814 | * USB device handling: |
| 815 | * the USB device are static allocated [USB_MAX_DEVICE]. |
| 816 | */ |
| 817 | |
| 818 | |
| 819 | /* returns a pointer to the device with the index [index]. |
| 820 | * if the device is not assigned (dev->devnum==-1) returns NULL |
| 821 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 822 | struct usb_device *usb_get_dev_index(int index) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 823 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 824 | if (usb_dev[index].devnum == -1) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 825 | return NULL; |
| 826 | else |
| 827 | return &usb_dev[index]; |
| 828 | } |
| 829 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 830 | /* returns a pointer of a new device structure or NULL, if |
| 831 | * no device struct is available |
| 832 | */ |
Lucas Stach | c7e3b2b | 2012-09-26 00:14:34 +0200 | [diff] [blame] | 833 | struct usb_device *usb_alloc_new_device(void *controller) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 834 | { |
| 835 | int i; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 836 | debug("New Device %d\n", dev_index); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 837 | if (dev_index == USB_MAX_DEVICE) { |
| 838 | printf("ERROR, too many USB Devices, max=%d\n", USB_MAX_DEVICE); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 839 | return NULL; |
| 840 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 841 | /* default Address is 0, real addresses start with 1 */ |
| 842 | usb_dev[dev_index].devnum = dev_index + 1; |
| 843 | usb_dev[dev_index].maxchild = 0; |
| 844 | for (i = 0; i < USB_MAXCHILDREN; i++) |
| 845 | usb_dev[dev_index].children[i] = NULL; |
| 846 | usb_dev[dev_index].parent = NULL; |
Lucas Stach | c7e3b2b | 2012-09-26 00:14:34 +0200 | [diff] [blame] | 847 | usb_dev[dev_index].controller = controller; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 848 | dev_index++; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 849 | return &usb_dev[dev_index - 1]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 850 | } |
| 851 | |
Milind Choudhary | 359439d | 2012-12-12 17:55:28 -0800 | [diff] [blame] | 852 | /* |
| 853 | * Free the newly created device node. |
| 854 | * Called in error cases where configuring a newly attached |
| 855 | * device fails for some reason. |
| 856 | */ |
| 857 | void usb_free_device(void) |
| 858 | { |
| 859 | dev_index--; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 860 | debug("Freeing device node: %d\n", dev_index); |
Milind Choudhary | 359439d | 2012-12-12 17:55:28 -0800 | [diff] [blame] | 861 | memset(&usb_dev[dev_index], 0, sizeof(struct usb_device)); |
| 862 | usb_dev[dev_index].devnum = -1; |
| 863 | } |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 864 | |
| 865 | /* |
Vivek Gautam | 5853e13 | 2013-09-14 14:02:45 +0530 | [diff] [blame] | 866 | * XHCI issues Enable Slot command and thereafter |
| 867 | * allocates device contexts. Provide a weak alias |
| 868 | * function for the purpose, so that XHCI overrides it |
| 869 | * and EHCI/OHCI just work out of the box. |
| 870 | */ |
| 871 | __weak int usb_alloc_device(struct usb_device *udev) |
| 872 | { |
| 873 | return 0; |
| 874 | } |
| 875 | /* |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 876 | * By the time we get here, the device has gotten a new device ID |
| 877 | * and is in the default state. We need to identify the thing and |
| 878 | * get the ball rolling.. |
| 879 | * |
| 880 | * Returns 0 for success, != 0 for error. |
| 881 | */ |
Marek Vasut | 23faf2b | 2012-02-13 18:58:17 +0000 | [diff] [blame] | 882 | int usb_new_device(struct usb_device *dev) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 883 | { |
| 884 | int addr, err; |
| 885 | int tmp; |
Puneet Saxena | f576613 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 886 | ALLOC_CACHE_ALIGN_BUFFER(unsigned char, tmpbuf, USB_BUFSIZ); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 887 | |
Vivek Gautam | 5853e13 | 2013-09-14 14:02:45 +0530 | [diff] [blame] | 888 | /* |
| 889 | * Allocate usb 3.0 device context. |
| 890 | * USB 3.0 (xHCI) protocol tries to allocate device slot |
| 891 | * and related data structures first. This call does that. |
| 892 | * Refer to sec 4.3.2 in xHCI spec rev1.0 |
| 893 | */ |
| 894 | if (usb_alloc_device(dev)) { |
| 895 | printf("Cannot allocate device context to get SLOT_ID\n"); |
| 896 | return -1; |
| 897 | } |
| 898 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 899 | /* We still haven't set the Address yet */ |
| 900 | addr = dev->devnum; |
| 901 | dev->devnum = 0; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 902 | |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 903 | #ifdef CONFIG_LEGACY_USB_INIT_SEQ |
| 904 | /* this is the old and known way of initializing devices, it is |
| 905 | * different than what Windows and Linux are doing. Windows and Linux |
| 906 | * both retrieve 64 bytes while reading the device descriptor |
| 907 | * Several USB stick devices report ERR: CTL_TIMEOUT, caused by an |
| 908 | * invalid header while reading 8 bytes as device descriptor. */ |
| 909 | dev->descriptor.bMaxPacketSize0 = 8; /* Start off at 8 bytes */ |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 910 | dev->maxpacketsize = PACKET_SIZE_8; |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 911 | dev->epmaxpacketin[0] = 8; |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 912 | dev->epmaxpacketout[0] = 8; |
| 913 | |
Ilya Yanok | 80ab414 | 2012-07-15 04:43:50 +0000 | [diff] [blame] | 914 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, tmpbuf, 8); |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 915 | if (err < 8) { |
| 916 | printf("\n USB device not responding, " \ |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 917 | "giving up (status=%lX)\n", dev->status); |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 918 | return 1; |
| 919 | } |
Ilya Yanok | 80ab414 | 2012-07-15 04:43:50 +0000 | [diff] [blame] | 920 | memcpy(&dev->descriptor, tmpbuf, 8); |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 921 | #else |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 922 | /* This is a Windows scheme of initialization sequence, with double |
| 923 | * reset of the device (Linux uses the same sequence) |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 924 | * Some equipment is said to work only with such init sequence; this |
| 925 | * patch is based on the work by Alan Stern: |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 926 | * http://sourceforge.net/mailarchive/forum.php? |
| 927 | * thread_id=5729457&forum_id=5398 |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 928 | */ |
Vivek Gautam | 5853e13 | 2013-09-14 14:02:45 +0530 | [diff] [blame] | 929 | __maybe_unused struct usb_device_descriptor *desc; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 930 | struct usb_device *parent = dev->parent; |
| 931 | unsigned short portstatus; |
| 932 | |
| 933 | /* send 64-byte GET-DEVICE-DESCRIPTOR request. Since the descriptor is |
| 934 | * only 18 bytes long, this will terminate with a short packet. But if |
| 935 | * the maxpacket size is 8 or 16 the device may be waiting to transmit |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 936 | * some more, or keeps on retransmitting the 8 byte header. */ |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 937 | |
| 938 | desc = (struct usb_device_descriptor *)tmpbuf; |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 939 | dev->descriptor.bMaxPacketSize0 = 64; /* Start off at 64 bytes */ |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 940 | /* Default to 64 byte max packet size */ |
| 941 | dev->maxpacketsize = PACKET_SIZE_64; |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 942 | dev->epmaxpacketin[0] = 64; |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 943 | dev->epmaxpacketout[0] = 64; |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 944 | |
Vivek Gautam | 5853e13 | 2013-09-14 14:02:45 +0530 | [diff] [blame] | 945 | /* |
| 946 | * XHCI needs to issue a Address device command to setup |
| 947 | * proper device context structures, before it can interact |
| 948 | * with the device. So a get_descriptor will fail before any |
| 949 | * of that is done for XHCI unlike EHCI. |
| 950 | */ |
| 951 | #ifndef CONFIG_USB_XHCI |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 952 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, 64); |
| 953 | if (err < 0) { |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 954 | debug("usb_new_device: usb_get_descriptor() failed\n"); |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 955 | return 1; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 956 | } |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 957 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 958 | dev->descriptor.bMaxPacketSize0 = desc->bMaxPacketSize0; |
Vivek Gautam | 99c3491 | 2013-04-12 16:34:36 +0530 | [diff] [blame] | 959 | /* |
| 960 | * Fetch the device class, driver can use this info |
| 961 | * to differentiate between HUB and DEVICE. |
| 962 | */ |
| 963 | dev->descriptor.bDeviceClass = desc->bDeviceClass; |
Vivek Gautam | 5853e13 | 2013-09-14 14:02:45 +0530 | [diff] [blame] | 964 | #endif |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 965 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 966 | if (parent) { |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 967 | /* reset the port for the second time */ |
Hans de Goede | f7b9baf | 2014-09-20 17:03:52 +0200 | [diff] [blame] | 968 | err = hub_port_reset(dev->parent, dev->portnr - 1, &portstatus); |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 969 | if (err < 0) { |
Hans de Goede | f7b9baf | 2014-09-20 17:03:52 +0200 | [diff] [blame] | 970 | printf("\n Couldn't reset port %i\n", dev->portnr); |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 971 | return 1; |
| 972 | } |
Hans de Goede | 90cdc10 | 2015-01-11 20:34:51 +0100 | [diff] [blame] | 973 | } else { |
| 974 | usb_reset_root_port(); |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 975 | } |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 976 | #endif |
| 977 | |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 978 | dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 979 | dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0; |
| 980 | switch (dev->descriptor.bMaxPacketSize0) { |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 981 | case 8: |
| 982 | dev->maxpacketsize = PACKET_SIZE_8; |
| 983 | break; |
| 984 | case 16: |
| 985 | dev->maxpacketsize = PACKET_SIZE_16; |
| 986 | break; |
| 987 | case 32: |
| 988 | dev->maxpacketsize = PACKET_SIZE_32; |
| 989 | break; |
| 990 | case 64: |
| 991 | dev->maxpacketsize = PACKET_SIZE_64; |
| 992 | break; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 993 | } |
| 994 | dev->devnum = addr; |
| 995 | |
| 996 | err = usb_set_address(dev); /* set address */ |
| 997 | |
| 998 | if (err < 0) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 999 | printf("\n USB device not accepting new address " \ |
| 1000 | "(error=%lX)\n", dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1001 | return 1; |
| 1002 | } |
| 1003 | |
Mike Frysinger | 5b84dd6 | 2012-03-05 13:47:00 +0000 | [diff] [blame] | 1004 | mdelay(10); /* Let the SET_ADDRESS settle */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1005 | |
| 1006 | tmp = sizeof(dev->descriptor); |
| 1007 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1008 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, |
Ilya Yanok | 80ab414 | 2012-07-15 04:43:50 +0000 | [diff] [blame] | 1009 | tmpbuf, sizeof(dev->descriptor)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1010 | if (err < tmp) { |
| 1011 | if (err < 0) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1012 | printf("unable to get device descriptor (error=%d)\n", |
| 1013 | err); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1014 | else |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1015 | printf("USB device descriptor short read " \ |
| 1016 | "(expected %i, got %i)\n", tmp, err); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1017 | return 1; |
| 1018 | } |
Ilya Yanok | 80ab414 | 2012-07-15 04:43:50 +0000 | [diff] [blame] | 1019 | memcpy(&dev->descriptor, tmpbuf, sizeof(dev->descriptor)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1020 | /* correct le values */ |
Christian Eggers | c918261 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 1021 | le16_to_cpus(&dev->descriptor.bcdUSB); |
| 1022 | le16_to_cpus(&dev->descriptor.idVendor); |
| 1023 | le16_to_cpus(&dev->descriptor.idProduct); |
| 1024 | le16_to_cpus(&dev->descriptor.bcdDevice); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1025 | /* only support for one config for now */ |
Vincent Palatin | 8b8d779 | 2012-07-24 07:12:02 +0000 | [diff] [blame] | 1026 | err = usb_get_configuration_no(dev, tmpbuf, 0); |
| 1027 | if (err < 0) { |
| 1028 | printf("usb_new_device: Cannot read configuration, " \ |
| 1029 | "skipping device %04x:%04x\n", |
| 1030 | dev->descriptor.idVendor, dev->descriptor.idProduct); |
| 1031 | return -1; |
| 1032 | } |
Puneet Saxena | f576613 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 1033 | usb_parse_config(dev, tmpbuf, 0); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1034 | usb_set_maxpacket(dev); |
| 1035 | /* we set the default configuration here */ |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 1036 | if (usb_set_configuration(dev, dev->config.desc.bConfigurationValue)) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1037 | printf("failed to set default configuration " \ |
| 1038 | "len %d, status %lX\n", dev->act_len, dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1039 | return -1; |
| 1040 | } |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 1041 | debug("new device strings: Mfr=%d, Product=%d, SerialNumber=%d\n", |
| 1042 | dev->descriptor.iManufacturer, dev->descriptor.iProduct, |
| 1043 | dev->descriptor.iSerialNumber); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1044 | memset(dev->mf, 0, sizeof(dev->mf)); |
| 1045 | memset(dev->prod, 0, sizeof(dev->prod)); |
| 1046 | memset(dev->serial, 0, sizeof(dev->serial)); |
| 1047 | if (dev->descriptor.iManufacturer) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1048 | usb_string(dev, dev->descriptor.iManufacturer, |
| 1049 | dev->mf, sizeof(dev->mf)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1050 | if (dev->descriptor.iProduct) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1051 | usb_string(dev, dev->descriptor.iProduct, |
| 1052 | dev->prod, sizeof(dev->prod)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1053 | if (dev->descriptor.iSerialNumber) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1054 | usb_string(dev, dev->descriptor.iSerialNumber, |
| 1055 | dev->serial, sizeof(dev->serial)); |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 1056 | debug("Manufacturer %s\n", dev->mf); |
| 1057 | debug("Product %s\n", dev->prod); |
| 1058 | debug("SerialNumber %s\n", dev->serial); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1059 | /* now prode if the device is a hub */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1060 | usb_hub_probe(dev, 0); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1061 | return 0; |
| 1062 | } |
| 1063 | |
Mateusz Zalega | 16297cf | 2013-10-04 19:22:26 +0200 | [diff] [blame] | 1064 | __weak |
Troy Kisky | bba6791 | 2013-10-10 15:27:55 -0700 | [diff] [blame] | 1065 | int board_usb_init(int index, enum usb_init_type init) |
Mateusz Zalega | 16297cf | 2013-10-04 19:22:26 +0200 | [diff] [blame] | 1066 | { |
| 1067 | return 0; |
| 1068 | } |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1069 | /* EOF */ |