wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1 | /* |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 2 | * |
| 3 | * Most of this source has been derived from the Linux USB |
Wolfgang Denk | 460c322 | 2005-08-04 01:14:12 +0200 | [diff] [blame] | 4 | * project: |
| 5 | * (C) Copyright Linus Torvalds 1999 |
| 6 | * (C) Copyright Johannes Erdfelt 1999-2001 |
| 7 | * (C) Copyright Andreas Gal 1999 |
| 8 | * (C) Copyright Gregory P. Smith 1999 |
| 9 | * (C) Copyright Deti Fliegl 1999 (new USB architecture) |
| 10 | * (C) Copyright Randy Dunlap 2000 |
| 11 | * (C) Copyright David Brownell 2000 (kernel hotplug, usb_device_id) |
| 12 | * (C) Copyright Yggdrasil Computing, Inc. 2000 |
| 13 | * (usb_device_id matching changes by Adam J. Richter) |
| 14 | * |
| 15 | * Adapted for U-Boot: |
| 16 | * (C) Copyright 2001 Denis Peter, MPL AG Switzerland |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 17 | * |
| 18 | * See file CREDITS for list of people who contributed to this |
| 19 | * project. |
| 20 | * |
| 21 | * This program is free software; you can redistribute it and/or |
| 22 | * modify it under the terms of the GNU General Public License as |
| 23 | * published by the Free Software Foundation; either version 2 of |
| 24 | * the License, or (at your option) any later version. |
| 25 | * |
| 26 | * This program is distributed in the hope that it will be useful, |
| 27 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 28 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 29 | * GNU General Public License for more details. |
| 30 | * |
| 31 | * You should have received a copy of the GNU General Public License |
| 32 | * along with this program; if not, write to the Free Software |
| 33 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 34 | * MA 02111-1307 USA |
| 35 | * |
| 36 | */ |
| 37 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 38 | /* |
| 39 | * How it works: |
| 40 | * |
| 41 | * Since this is a bootloader, the devices will not be automatic |
| 42 | * (re)configured on hotplug, but after a restart of the USB the |
| 43 | * device should work. |
| 44 | * |
| 45 | * For each transfer (except "Interrupt") we wait for completion. |
| 46 | */ |
| 47 | #include <common.h> |
| 48 | #include <command.h> |
| 49 | #include <asm/processor.h> |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 50 | #include <linux/ctype.h> |
Christian Eggers | c918261 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 51 | #include <asm/byteorder.h> |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 52 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 53 | #include <usb.h> |
| 54 | #ifdef CONFIG_4xx |
Stefan Roese | 3048bcb | 2007-10-03 15:01:02 +0200 | [diff] [blame] | 55 | #include <asm/4xx_pci.h> |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 56 | #endif |
| 57 | |
Alexander Holler | ce297a8 | 2011-01-28 12:42:13 +0100 | [diff] [blame^] | 58 | #ifdef DEBUG |
| 59 | #define USB_DEBUG |
| 60 | #define USB_HUB_DEBUG |
| 61 | #endif |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 62 | |
| 63 | #ifdef USB_DEBUG |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 64 | #define USB_PRINTF(fmt, args...) printf(fmt , ##args) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 65 | #else |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 66 | #define USB_PRINTF(fmt, args...) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 67 | #endif |
| 68 | |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 69 | #define USB_BUFSIZ 512 |
| 70 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 71 | static struct usb_device usb_dev[USB_MAX_DEVICE]; |
| 72 | static int dev_index; |
| 73 | static int running; |
| 74 | static int asynch_allowed; |
| 75 | static struct devrequest setup_packet; |
| 76 | |
Bartlomiej Sieka | e51aae3 | 2006-08-03 23:20:13 +0200 | [diff] [blame] | 77 | char usb_started; /* flag for the started/stopped USB status */ |
| 78 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 79 | /********************************************************************** |
| 80 | * some forward declerations... |
| 81 | */ |
| 82 | void usb_scan_devices(void); |
| 83 | |
| 84 | int usb_hub_probe(struct usb_device *dev, int ifnum); |
| 85 | void usb_hub_reset(void); |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 86 | static int hub_port_reset(struct usb_device *dev, int port, |
| 87 | unsigned short *portstat); |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 88 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 89 | /*********************************************************************** |
| 90 | * wait_ms |
| 91 | */ |
| 92 | |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 93 | inline void wait_ms(unsigned long ms) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 94 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 95 | while (ms-- > 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 96 | udelay(1000); |
| 97 | } |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 98 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 99 | /*************************************************************************** |
| 100 | * Init USB Device |
| 101 | */ |
| 102 | |
| 103 | int usb_init(void) |
| 104 | { |
| 105 | int result; |
| 106 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 107 | running = 0; |
| 108 | dev_index = 0; |
| 109 | asynch_allowed = 1; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 110 | usb_hub_reset(); |
| 111 | /* init low_level USB */ |
| 112 | printf("USB: "); |
| 113 | result = usb_lowlevel_init(); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 114 | /* if lowlevel init is OK, scan the bus for devices |
| 115 | * i.e. search HUBs and configure them */ |
| 116 | if (result == 0) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 117 | printf("scanning bus for devices... "); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 118 | running = 1; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 119 | usb_scan_devices(); |
Bartlomiej Sieka | e51aae3 | 2006-08-03 23:20:13 +0200 | [diff] [blame] | 120 | usb_started = 1; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 121 | return 0; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 122 | } else { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 123 | printf("Error, couldn't init Lowlevel part\n"); |
Bartlomiej Sieka | e51aae3 | 2006-08-03 23:20:13 +0200 | [diff] [blame] | 124 | usb_started = 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 125 | return -1; |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | /****************************************************************************** |
| 130 | * Stop USB this stops the LowLevel Part and deregisters USB devices. |
| 131 | */ |
| 132 | int usb_stop(void) |
| 133 | { |
Remy Bohmer | eba1f2f | 2008-08-20 11:22:02 +0200 | [diff] [blame] | 134 | int res = 0; |
| 135 | |
| 136 | if (usb_started) { |
| 137 | asynch_allowed = 1; |
| 138 | usb_started = 0; |
| 139 | usb_hub_reset(); |
| 140 | res = usb_lowlevel_stop(); |
| 141 | } |
| 142 | return res; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 143 | } |
| 144 | |
| 145 | /* |
| 146 | * disables the asynch behaviour of the control message. This is used for data |
| 147 | * transfers that uses the exclusiv access to the control and bulk messages. |
| 148 | */ |
| 149 | void usb_disable_asynch(int disable) |
| 150 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 151 | asynch_allowed = !disable; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 152 | } |
| 153 | |
| 154 | |
| 155 | /*------------------------------------------------------------------- |
| 156 | * Message wrappers. |
| 157 | * |
| 158 | */ |
| 159 | |
| 160 | /* |
| 161 | * submits an Interrupt Message |
| 162 | */ |
| 163 | int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe, |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 164 | void *buffer, int transfer_len, int interval) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 165 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 166 | return submit_int_msg(dev, pipe, buffer, transfer_len, interval); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 167 | } |
| 168 | |
| 169 | /* |
| 170 | * submits a control message and waits for comletion (at least timeout * 1ms) |
| 171 | * If timeout is 0, we don't wait for completion (used as example to set and |
| 172 | * clear keyboards LEDs). For data transfers, (storage transfers) we don't |
| 173 | * allow control messages with 0 timeout, by previousely resetting the flag |
| 174 | * asynch_allowed (usb_disable_asynch(1)). |
| 175 | * returns the transfered length if OK or -1 if error. The transfered length |
| 176 | * and the current status are stored in the dev->act_len and dev->status. |
| 177 | */ |
| 178 | int usb_control_msg(struct usb_device *dev, unsigned int pipe, |
| 179 | unsigned char request, unsigned char requesttype, |
| 180 | unsigned short value, unsigned short index, |
| 181 | void *data, unsigned short size, int timeout) |
| 182 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 183 | if ((timeout == 0) && (!asynch_allowed)) { |
| 184 | /* request for a asynch control pipe is not allowed */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 185 | return -1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 186 | } |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 187 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 188 | /* set setup command */ |
| 189 | setup_packet.requesttype = requesttype; |
| 190 | setup_packet.request = request; |
Christian Eggers | c918261 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 191 | setup_packet.value = cpu_to_le16(value); |
| 192 | setup_packet.index = cpu_to_le16(index); |
| 193 | setup_packet.length = cpu_to_le16(size); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 194 | USB_PRINTF("usb_control_msg: request: 0x%X, requesttype: 0x%X, " \ |
| 195 | "value 0x%X index 0x%X length 0x%X\n", |
| 196 | request, requesttype, value, index, size); |
| 197 | dev->status = USB_ST_NOT_PROC; /*not yet processed */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 198 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 199 | submit_control_msg(dev, pipe, data, size, &setup_packet); |
| 200 | if (timeout == 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 201 | return (int)size; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 202 | |
Remy Bohmer | 84d36b3 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 203 | /* |
| 204 | * Wait for status to update until timeout expires, USB driver |
| 205 | * interrupt handler may set the status when the USB operation has |
| 206 | * been completed. |
| 207 | */ |
| 208 | while (timeout--) { |
| 209 | if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) |
| 210 | break; |
| 211 | wait_ms(1); |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 212 | } |
Remy Bohmer | 84d36b3 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 213 | if (dev->status) |
| 214 | return -1; |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 215 | |
| 216 | return dev->act_len; |
Remy Bohmer | 84d36b3 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 217 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 218 | } |
| 219 | |
| 220 | /*------------------------------------------------------------------- |
| 221 | * submits bulk message, and waits for completion. returns 0 if Ok or |
| 222 | * -1 if Error. |
| 223 | * synchronous behavior |
| 224 | */ |
| 225 | int usb_bulk_msg(struct usb_device *dev, unsigned int pipe, |
| 226 | void *data, int len, int *actual_length, int timeout) |
| 227 | { |
| 228 | if (len < 0) |
| 229 | return -1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 230 | dev->status = USB_ST_NOT_PROC; /*not yet processed */ |
| 231 | submit_bulk_msg(dev, pipe, data, len); |
| 232 | while (timeout--) { |
| 233 | if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 234 | break; |
| 235 | wait_ms(1); |
| 236 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 237 | *actual_length = dev->act_len; |
| 238 | if (dev->status == 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 239 | return 0; |
| 240 | else |
| 241 | return -1; |
| 242 | } |
| 243 | |
| 244 | |
| 245 | /*------------------------------------------------------------------- |
| 246 | * Max Packet stuff |
| 247 | */ |
| 248 | |
| 249 | /* |
| 250 | * returns the max packet size, depending on the pipe direction and |
| 251 | * the configurations values |
| 252 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 253 | int usb_maxpacket(struct usb_device *dev, unsigned long pipe) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 254 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 255 | /* direction is out -> use emaxpacket out */ |
| 256 | if ((pipe & USB_DIR_IN) == 0) |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 257 | return dev->epmaxpacketout[((pipe>>15) & 0xf)]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 258 | else |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 259 | return dev->epmaxpacketin[((pipe>>15) & 0xf)]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 260 | } |
| 261 | |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 262 | /* The routine usb_set_maxpacket_ep() is extracted from the loop of routine |
| 263 | * usb_set_maxpacket(), because the optimizer of GCC 4.x chokes on this routine |
| 264 | * when it is inlined in 1 single routine. What happens is that the register r3 |
| 265 | * is used as loop-count 'i', but gets overwritten later on. |
| 266 | * This is clearly a compiler bug, but it is easier to workaround it here than |
| 267 | * to update the compiler (Occurs with at least several GCC 4.{1,2},x |
| 268 | * CodeSourcery compilers like e.g. 2007q3, 2008q1, 2008q3 lite editions on ARM) |
| 269 | */ |
| 270 | static void __attribute__((noinline)) |
| 271 | usb_set_maxpacket_ep(struct usb_device *dev, struct usb_endpoint_descriptor *ep) |
| 272 | { |
| 273 | int b; |
| 274 | |
| 275 | b = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; |
| 276 | |
| 277 | if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == |
| 278 | USB_ENDPOINT_XFER_CONTROL) { |
| 279 | /* Control => bidirectional */ |
| 280 | dev->epmaxpacketout[b] = ep->wMaxPacketSize; |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 281 | dev->epmaxpacketin[b] = ep->wMaxPacketSize; |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 282 | USB_PRINTF("##Control EP epmaxpacketout/in[%d] = %d\n", |
| 283 | b, dev->epmaxpacketin[b]); |
| 284 | } else { |
| 285 | if ((ep->bEndpointAddress & 0x80) == 0) { |
| 286 | /* OUT Endpoint */ |
| 287 | if (ep->wMaxPacketSize > dev->epmaxpacketout[b]) { |
| 288 | dev->epmaxpacketout[b] = ep->wMaxPacketSize; |
| 289 | USB_PRINTF("##EP epmaxpacketout[%d] = %d\n", |
| 290 | b, dev->epmaxpacketout[b]); |
| 291 | } |
| 292 | } else { |
| 293 | /* IN Endpoint */ |
| 294 | if (ep->wMaxPacketSize > dev->epmaxpacketin[b]) { |
| 295 | dev->epmaxpacketin[b] = ep->wMaxPacketSize; |
| 296 | USB_PRINTF("##EP epmaxpacketin[%d] = %d\n", |
| 297 | b, dev->epmaxpacketin[b]); |
| 298 | } |
| 299 | } /* if out */ |
| 300 | } /* if control */ |
| 301 | } |
| 302 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 303 | /* |
| 304 | * set the max packed value of all endpoints in the given configuration |
| 305 | */ |
| 306 | int usb_set_maxpacket(struct usb_device *dev) |
| 307 | { |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 308 | int i, ii; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 309 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 310 | for (i = 0; i < dev->config.desc.bNumInterfaces; i++) |
| 311 | for (ii = 0; ii < dev->config.if_desc[i].desc.bNumEndpoints; ii++) |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 312 | usb_set_maxpacket_ep(dev, |
| 313 | &dev->config.if_desc[i].ep_desc[ii]); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 314 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 315 | return 0; |
| 316 | } |
| 317 | |
| 318 | /******************************************************************************* |
| 319 | * Parse the config, located in buffer, and fills the dev->config structure. |
| 320 | * Note that all little/big endian swapping are done automatically. |
| 321 | */ |
| 322 | int usb_parse_config(struct usb_device *dev, unsigned char *buffer, int cfgno) |
| 323 | { |
| 324 | struct usb_descriptor_header *head; |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 325 | int index, ifno, epno, curr_if_num; |
| 326 | int i; |
| 327 | unsigned char *ch; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 328 | |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 329 | ifno = -1; |
| 330 | epno = -1; |
| 331 | curr_if_num = -1; |
| 332 | |
| 333 | dev->configno = cfgno; |
| 334 | head = (struct usb_descriptor_header *) &buffer[0]; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 335 | if (head->bDescriptorType != USB_DT_CONFIG) { |
| 336 | printf(" ERROR: NOT USB_CONFIG_DESC %x\n", |
| 337 | head->bDescriptorType); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 338 | return -1; |
| 339 | } |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 340 | memcpy(&dev->config, buffer, buffer[0]); |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 341 | le16_to_cpus(&(dev->config.desc.wTotalLength)); |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 342 | dev->config.no_of_if = 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 343 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 344 | index = dev->config.desc.bLength; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 345 | /* Ok the first entry must be a configuration entry, |
| 346 | * now process the others */ |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 347 | head = (struct usb_descriptor_header *) &buffer[index]; |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 348 | while (index + 1 < dev->config.desc.wTotalLength) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 349 | switch (head->bDescriptorType) { |
| 350 | case USB_DT_INTERFACE: |
| 351 | if (((struct usb_interface_descriptor *) \ |
| 352 | &buffer[index])->bInterfaceNumber != curr_if_num) { |
| 353 | /* this is a new interface, copy new desc */ |
| 354 | ifno = dev->config.no_of_if; |
| 355 | dev->config.no_of_if++; |
| 356 | memcpy(&dev->config.if_desc[ifno], |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 357 | &buffer[index], buffer[index]); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 358 | dev->config.if_desc[ifno].no_of_ep = 0; |
| 359 | dev->config.if_desc[ifno].num_altsetting = 1; |
| 360 | curr_if_num = |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 361 | dev->config.if_desc[ifno].desc.bInterfaceNumber; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 362 | } else { |
| 363 | /* found alternate setting for the interface */ |
| 364 | dev->config.if_desc[ifno].num_altsetting++; |
| 365 | } |
| 366 | break; |
| 367 | case USB_DT_ENDPOINT: |
| 368 | epno = dev->config.if_desc[ifno].no_of_ep; |
| 369 | /* found an endpoint */ |
| 370 | dev->config.if_desc[ifno].no_of_ep++; |
| 371 | memcpy(&dev->config.if_desc[ifno].ep_desc[epno], |
| 372 | &buffer[index], buffer[index]); |
| 373 | le16_to_cpus(&(dev->config.if_desc[ifno].ep_desc[epno].\ |
| 374 | wMaxPacketSize)); |
| 375 | USB_PRINTF("if %d, ep %d\n", ifno, epno); |
| 376 | break; |
| 377 | default: |
| 378 | if (head->bLength == 0) |
| 379 | return 1; |
| 380 | |
| 381 | USB_PRINTF("unknown Description Type : %x\n", |
| 382 | head->bDescriptorType); |
| 383 | |
| 384 | { |
| 385 | ch = (unsigned char *)head; |
| 386 | for (i = 0; i < head->bLength; i++) |
| 387 | USB_PRINTF("%02X ", *ch++); |
| 388 | USB_PRINTF("\n\n\n"); |
| 389 | } |
| 390 | break; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 391 | } |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 392 | index += head->bLength; |
| 393 | head = (struct usb_descriptor_header *)&buffer[index]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 394 | } |
| 395 | return 1; |
| 396 | } |
| 397 | |
| 398 | /*********************************************************************** |
| 399 | * Clears an endpoint |
| 400 | * endp: endpoint number in bits 0-3; |
| 401 | * direction flag in bit 7 (1 = IN, 0 = OUT) |
| 402 | */ |
| 403 | int usb_clear_halt(struct usb_device *dev, int pipe) |
| 404 | { |
| 405 | int result; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 406 | int endp = usb_pipeendpoint(pipe)|(usb_pipein(pipe)<<7); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 407 | |
| 408 | result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 409 | USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 0, |
| 410 | endp, NULL, 0, USB_CNTL_TIMEOUT * 3); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 411 | |
| 412 | /* don't clear if failed */ |
| 413 | if (result < 0) |
| 414 | return result; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 415 | |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 416 | /* |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 417 | * NOTE: we do not get status and verify reset was successful |
| 418 | * as some devices are reported to lock up upon this check.. |
| 419 | */ |
| 420 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 421 | usb_endpoint_running(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)); |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 422 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 423 | /* toggle is reset on clear */ |
| 424 | usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 0); |
| 425 | return 0; |
| 426 | } |
| 427 | |
| 428 | |
| 429 | /********************************************************************** |
| 430 | * get_descriptor type |
| 431 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 432 | int usb_get_descriptor(struct usb_device *dev, unsigned char type, |
| 433 | unsigned char index, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 434 | { |
| 435 | int res; |
Wolfgang Denk | 53677ef | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 436 | res = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 437 | USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, |
| 438 | (type << 8) + index, 0, |
| 439 | buf, size, USB_CNTL_TIMEOUT); |
| 440 | return res; |
| 441 | } |
| 442 | |
| 443 | /********************************************************************** |
| 444 | * gets configuration cfgno and store it in the buffer |
| 445 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 446 | int usb_get_configuration_no(struct usb_device *dev, |
| 447 | unsigned char *buffer, int cfgno) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 448 | { |
Wolfgang Denk | 53677ef | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 449 | int result; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 450 | unsigned int tmp; |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 451 | struct usb_configuration_descriptor *config; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 452 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 453 | config = (struct usb_configuration_descriptor *)&buffer[0]; |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 454 | result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 9); |
| 455 | if (result < 9) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 456 | if (result < 0) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 457 | printf("unable to get descriptor, error %lX\n", |
| 458 | dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 459 | else |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 460 | printf("config descriptor too short " \ |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 461 | "(expected %i, got %i)\n", 9, result); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 462 | return -1; |
| 463 | } |
Christian Eggers | c918261 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 464 | tmp = le16_to_cpu(config->wTotalLength); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 465 | |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 466 | if (tmp > USB_BUFSIZ) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 467 | USB_PRINTF("usb_get_configuration_no: failed to get " \ |
| 468 | "descriptor - too long: %d\n", tmp); |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 469 | return -1; |
| 470 | } |
| 471 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 472 | result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, tmp); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 473 | USB_PRINTF("get_conf_no %d Result %d, wLength %d\n", |
| 474 | cfgno, result, tmp); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 475 | return result; |
| 476 | } |
| 477 | |
| 478 | /******************************************************************** |
| 479 | * set address of a device to the value in dev->devnum. |
| 480 | * This can only be done by addressing the device via the default address (0) |
| 481 | */ |
| 482 | int usb_set_address(struct usb_device *dev) |
| 483 | { |
| 484 | int res; |
| 485 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 486 | USB_PRINTF("set address %d\n", dev->devnum); |
| 487 | res = usb_control_msg(dev, usb_snddefctrl(dev), |
| 488 | USB_REQ_SET_ADDRESS, 0, |
| 489 | (dev->devnum), 0, |
| 490 | NULL, 0, USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 491 | return res; |
| 492 | } |
| 493 | |
| 494 | /******************************************************************** |
| 495 | * set interface number to interface |
| 496 | */ |
| 497 | int usb_set_interface(struct usb_device *dev, int interface, int alternate) |
| 498 | { |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 499 | struct usb_interface *if_face = NULL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 500 | int ret, i; |
| 501 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 502 | for (i = 0; i < dev->config.desc.bNumInterfaces; i++) { |
| 503 | if (dev->config.if_desc[i].desc.bInterfaceNumber == interface) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 504 | if_face = &dev->config.if_desc[i]; |
| 505 | break; |
| 506 | } |
| 507 | } |
| 508 | if (!if_face) { |
| 509 | printf("selecting invalid interface %d", interface); |
| 510 | return -1; |
| 511 | } |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 512 | /* |
| 513 | * We should return now for devices with only one alternate setting. |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 514 | * According to 9.4.10 of the Universal Serial Bus Specification |
| 515 | * Revision 2.0 such devices can return with a STALL. This results in |
| 516 | * some USB sticks timeouting during initialization and then being |
| 517 | * unusable in U-Boot. |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 518 | */ |
| 519 | if (if_face->num_altsetting == 1) |
| 520 | return 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 521 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 522 | ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 523 | USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE, |
| 524 | alternate, interface, NULL, 0, |
| 525 | USB_CNTL_TIMEOUT * 5); |
| 526 | if (ret < 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 527 | return ret; |
| 528 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 529 | return 0; |
| 530 | } |
| 531 | |
| 532 | /******************************************************************** |
| 533 | * set configuration number to configuration |
| 534 | */ |
| 535 | int usb_set_configuration(struct usb_device *dev, int configuration) |
| 536 | { |
| 537 | int res; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 538 | USB_PRINTF("set configuration %d\n", configuration); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 539 | /* set setup command */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 540 | res = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 541 | USB_REQ_SET_CONFIGURATION, 0, |
| 542 | configuration, 0, |
| 543 | NULL, 0, USB_CNTL_TIMEOUT); |
| 544 | if (res == 0) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 545 | dev->toggle[0] = 0; |
| 546 | dev->toggle[1] = 0; |
| 547 | return 0; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 548 | } else |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 549 | return -1; |
| 550 | } |
| 551 | |
| 552 | /******************************************************************** |
| 553 | * set protocol to protocol |
| 554 | */ |
| 555 | int usb_set_protocol(struct usb_device *dev, int ifnum, int protocol) |
| 556 | { |
| 557 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 558 | USB_REQ_SET_PROTOCOL, USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 559 | protocol, ifnum, NULL, 0, USB_CNTL_TIMEOUT); |
| 560 | } |
| 561 | |
| 562 | /******************************************************************** |
| 563 | * set idle |
| 564 | */ |
| 565 | int usb_set_idle(struct usb_device *dev, int ifnum, int duration, int report_id) |
| 566 | { |
| 567 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 568 | USB_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 569 | (duration << 8) | report_id, ifnum, NULL, 0, USB_CNTL_TIMEOUT); |
| 570 | } |
| 571 | |
| 572 | /******************************************************************** |
| 573 | * get report |
| 574 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 575 | int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type, |
| 576 | unsigned char id, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 577 | { |
| 578 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 579 | USB_REQ_GET_REPORT, |
| 580 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 581 | (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 582 | } |
| 583 | |
| 584 | /******************************************************************** |
| 585 | * get class descriptor |
| 586 | */ |
| 587 | int usb_get_class_descriptor(struct usb_device *dev, int ifnum, |
| 588 | unsigned char type, unsigned char id, void *buf, int size) |
| 589 | { |
| 590 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 591 | USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN, |
| 592 | (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT); |
| 593 | } |
| 594 | |
| 595 | /******************************************************************** |
| 596 | * get string index in buffer |
| 597 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 598 | int usb_get_string(struct usb_device *dev, unsigned short langid, |
| 599 | unsigned char index, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 600 | { |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 601 | int i; |
| 602 | int result; |
| 603 | |
| 604 | for (i = 0; i < 3; ++i) { |
| 605 | /* some devices are flaky */ |
| 606 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 607 | USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 608 | (USB_DT_STRING << 8) + index, langid, buf, size, |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 609 | USB_CNTL_TIMEOUT); |
| 610 | |
| 611 | if (result > 0) |
| 612 | break; |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 613 | } |
| 614 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 615 | return result; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 616 | } |
| 617 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 618 | |
| 619 | static void usb_try_string_workarounds(unsigned char *buf, int *length) |
| 620 | { |
| 621 | int newlength, oldlength = *length; |
| 622 | |
| 623 | for (newlength = 2; newlength + 1 < oldlength; newlength += 2) |
| 624 | if (!isprint(buf[newlength]) || buf[newlength + 1]) |
| 625 | break; |
| 626 | |
| 627 | if (newlength > 2) { |
| 628 | buf[0] = newlength; |
| 629 | *length = newlength; |
| 630 | } |
| 631 | } |
| 632 | |
| 633 | |
| 634 | static int usb_string_sub(struct usb_device *dev, unsigned int langid, |
| 635 | unsigned int index, unsigned char *buf) |
| 636 | { |
| 637 | int rc; |
| 638 | |
| 639 | /* Try to read the string descriptor by asking for the maximum |
| 640 | * possible number of bytes */ |
| 641 | rc = usb_get_string(dev, langid, index, buf, 255); |
| 642 | |
| 643 | /* If that failed try to read the descriptor length, then |
| 644 | * ask for just that many bytes */ |
| 645 | if (rc < 2) { |
| 646 | rc = usb_get_string(dev, langid, index, buf, 2); |
| 647 | if (rc == 2) |
| 648 | rc = usb_get_string(dev, langid, index, buf, buf[0]); |
| 649 | } |
| 650 | |
| 651 | if (rc >= 2) { |
| 652 | if (!buf[0] && !buf[1]) |
| 653 | usb_try_string_workarounds(buf, &rc); |
| 654 | |
| 655 | /* There might be extra junk at the end of the descriptor */ |
| 656 | if (buf[0] < rc) |
| 657 | rc = buf[0]; |
| 658 | |
| 659 | rc = rc - (rc & 1); /* force a multiple of two */ |
| 660 | } |
| 661 | |
| 662 | if (rc < 2) |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 663 | rc = -1; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 664 | |
| 665 | return rc; |
| 666 | } |
| 667 | |
| 668 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 669 | /******************************************************************** |
| 670 | * usb_string: |
| 671 | * Get string index and translate it to ascii. |
| 672 | * returns string length (> 0) or error (< 0) |
| 673 | */ |
| 674 | int usb_string(struct usb_device *dev, int index, char *buf, size_t size) |
| 675 | { |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 676 | unsigned char mybuf[USB_BUFSIZ]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 677 | unsigned char *tbuf; |
| 678 | int err; |
| 679 | unsigned int u, idx; |
| 680 | |
| 681 | if (size <= 0 || !buf || !index) |
| 682 | return -1; |
| 683 | buf[0] = 0; |
Wolfgang Denk | d0ff51b | 2008-07-14 15:19:07 +0200 | [diff] [blame] | 684 | tbuf = &mybuf[0]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 685 | |
| 686 | /* get langid for strings if it's not yet known */ |
| 687 | if (!dev->have_langid) { |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 688 | err = usb_string_sub(dev, 0, 0, tbuf); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 689 | if (err < 0) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 690 | USB_PRINTF("error getting string descriptor 0 " \ |
Stefan Roese | f1c1f54 | 2009-01-22 10:11:21 +0100 | [diff] [blame] | 691 | "(error=%lx)\n", dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 692 | return -1; |
| 693 | } else if (tbuf[0] < 4) { |
| 694 | USB_PRINTF("string descriptor 0 too short\n"); |
| 695 | return -1; |
| 696 | } else { |
| 697 | dev->have_langid = -1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 698 | dev->string_langid = tbuf[2] | (tbuf[3] << 8); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 699 | /* always use the first langid listed */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 700 | USB_PRINTF("USB device number %d default " \ |
| 701 | "language ID 0x%x\n", |
| 702 | dev->devnum, dev->string_langid); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 703 | } |
| 704 | } |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 705 | |
| 706 | err = usb_string_sub(dev, dev->string_langid, index, tbuf); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 707 | if (err < 0) |
| 708 | return err; |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 709 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 710 | size--; /* leave room for trailing NULL char in output buffer */ |
| 711 | for (idx = 0, u = 2; u < err; u += 2) { |
| 712 | if (idx >= size) |
| 713 | break; |
| 714 | if (tbuf[u+1]) /* high byte */ |
| 715 | buf[idx++] = '?'; /* non-ASCII character */ |
| 716 | else |
| 717 | buf[idx++] = tbuf[u]; |
| 718 | } |
| 719 | buf[idx] = 0; |
| 720 | err = idx; |
| 721 | return err; |
| 722 | } |
| 723 | |
| 724 | |
| 725 | /******************************************************************** |
| 726 | * USB device handling: |
| 727 | * the USB device are static allocated [USB_MAX_DEVICE]. |
| 728 | */ |
| 729 | |
| 730 | |
| 731 | /* returns a pointer to the device with the index [index]. |
| 732 | * if the device is not assigned (dev->devnum==-1) returns NULL |
| 733 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 734 | struct usb_device *usb_get_dev_index(int index) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 735 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 736 | if (usb_dev[index].devnum == -1) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 737 | return NULL; |
| 738 | else |
| 739 | return &usb_dev[index]; |
| 740 | } |
| 741 | |
| 742 | |
| 743 | /* returns a pointer of a new device structure or NULL, if |
| 744 | * no device struct is available |
| 745 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 746 | struct usb_device *usb_alloc_new_device(void) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 747 | { |
| 748 | int i; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 749 | USB_PRINTF("New Device %d\n", dev_index); |
| 750 | if (dev_index == USB_MAX_DEVICE) { |
| 751 | printf("ERROR, too many USB Devices, max=%d\n", USB_MAX_DEVICE); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 752 | return NULL; |
| 753 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 754 | /* default Address is 0, real addresses start with 1 */ |
| 755 | usb_dev[dev_index].devnum = dev_index + 1; |
| 756 | usb_dev[dev_index].maxchild = 0; |
| 757 | for (i = 0; i < USB_MAXCHILDREN; i++) |
| 758 | usb_dev[dev_index].children[i] = NULL; |
| 759 | usb_dev[dev_index].parent = NULL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 760 | dev_index++; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 761 | return &usb_dev[dev_index - 1]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 762 | } |
| 763 | |
| 764 | |
| 765 | /* |
| 766 | * By the time we get here, the device has gotten a new device ID |
| 767 | * and is in the default state. We need to identify the thing and |
| 768 | * get the ball rolling.. |
| 769 | * |
| 770 | * Returns 0 for success, != 0 for error. |
| 771 | */ |
| 772 | int usb_new_device(struct usb_device *dev) |
| 773 | { |
| 774 | int addr, err; |
| 775 | int tmp; |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 776 | unsigned char tmpbuf[USB_BUFSIZ]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 777 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 778 | /* We still haven't set the Address yet */ |
| 779 | addr = dev->devnum; |
| 780 | dev->devnum = 0; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 781 | |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 782 | #ifdef CONFIG_LEGACY_USB_INIT_SEQ |
| 783 | /* this is the old and known way of initializing devices, it is |
| 784 | * different than what Windows and Linux are doing. Windows and Linux |
| 785 | * both retrieve 64 bytes while reading the device descriptor |
| 786 | * Several USB stick devices report ERR: CTL_TIMEOUT, caused by an |
| 787 | * invalid header while reading 8 bytes as device descriptor. */ |
| 788 | dev->descriptor.bMaxPacketSize0 = 8; /* Start off at 8 bytes */ |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 789 | dev->maxpacketsize = PACKET_SIZE_8; |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 790 | dev->epmaxpacketin[0] = 8; |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 791 | dev->epmaxpacketout[0] = 8; |
| 792 | |
| 793 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, &dev->descriptor, 8); |
| 794 | if (err < 8) { |
| 795 | printf("\n USB device not responding, " \ |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 796 | "giving up (status=%lX)\n", dev->status); |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 797 | return 1; |
| 798 | } |
| 799 | #else |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 800 | /* This is a Windows scheme of initialization sequence, with double |
| 801 | * reset of the device (Linux uses the same sequence) |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 802 | * Some equipment is said to work only with such init sequence; this |
| 803 | * patch is based on the work by Alan Stern: |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 804 | * http://sourceforge.net/mailarchive/forum.php? |
| 805 | * thread_id=5729457&forum_id=5398 |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 806 | */ |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 807 | struct usb_device_descriptor *desc; |
| 808 | int port = -1; |
| 809 | struct usb_device *parent = dev->parent; |
| 810 | unsigned short portstatus; |
| 811 | |
| 812 | /* send 64-byte GET-DEVICE-DESCRIPTOR request. Since the descriptor is |
| 813 | * only 18 bytes long, this will terminate with a short packet. But if |
| 814 | * 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] | 815 | * some more, or keeps on retransmitting the 8 byte header. */ |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 816 | |
| 817 | desc = (struct usb_device_descriptor *)tmpbuf; |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 818 | dev->descriptor.bMaxPacketSize0 = 64; /* Start off at 64 bytes */ |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 819 | /* Default to 64 byte max packet size */ |
| 820 | dev->maxpacketsize = PACKET_SIZE_64; |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 821 | dev->epmaxpacketin[0] = 64; |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 822 | dev->epmaxpacketout[0] = 64; |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 823 | |
| 824 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, 64); |
| 825 | if (err < 0) { |
| 826 | USB_PRINTF("usb_new_device: usb_get_descriptor() failed\n"); |
| 827 | return 1; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 828 | } |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 829 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 830 | dev->descriptor.bMaxPacketSize0 = desc->bMaxPacketSize0; |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 831 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 832 | /* find the port number we're at */ |
| 833 | if (parent) { |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 834 | int j; |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 835 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 836 | for (j = 0; j < parent->maxchild; j++) { |
| 837 | if (parent->children[j] == dev) { |
| 838 | port = j; |
| 839 | break; |
| 840 | } |
| 841 | } |
| 842 | if (port < 0) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 843 | printf("usb_new_device:cannot locate device's port.\n"); |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 844 | return 1; |
| 845 | } |
| 846 | |
| 847 | /* reset the port for the second time */ |
| 848 | err = hub_port_reset(dev->parent, port, &portstatus); |
| 849 | if (err < 0) { |
| 850 | printf("\n Couldn't reset port %i\n", port); |
| 851 | return 1; |
| 852 | } |
| 853 | } |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 854 | #endif |
| 855 | |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 856 | dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 857 | dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0; |
| 858 | switch (dev->descriptor.bMaxPacketSize0) { |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 859 | case 8: |
| 860 | dev->maxpacketsize = PACKET_SIZE_8; |
| 861 | break; |
| 862 | case 16: |
| 863 | dev->maxpacketsize = PACKET_SIZE_16; |
| 864 | break; |
| 865 | case 32: |
| 866 | dev->maxpacketsize = PACKET_SIZE_32; |
| 867 | break; |
| 868 | case 64: |
| 869 | dev->maxpacketsize = PACKET_SIZE_64; |
| 870 | break; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 871 | } |
| 872 | dev->devnum = addr; |
| 873 | |
| 874 | err = usb_set_address(dev); /* set address */ |
| 875 | |
| 876 | if (err < 0) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 877 | printf("\n USB device not accepting new address " \ |
| 878 | "(error=%lX)\n", dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 879 | return 1; |
| 880 | } |
| 881 | |
| 882 | wait_ms(10); /* Let the SET_ADDRESS settle */ |
| 883 | |
| 884 | tmp = sizeof(dev->descriptor); |
| 885 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 886 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, |
| 887 | &dev->descriptor, sizeof(dev->descriptor)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 888 | if (err < tmp) { |
| 889 | if (err < 0) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 890 | printf("unable to get device descriptor (error=%d)\n", |
| 891 | err); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 892 | else |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 893 | printf("USB device descriptor short read " \ |
| 894 | "(expected %i, got %i)\n", tmp, err); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 895 | return 1; |
| 896 | } |
| 897 | /* correct le values */ |
Christian Eggers | c918261 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 898 | le16_to_cpus(&dev->descriptor.bcdUSB); |
| 899 | le16_to_cpus(&dev->descriptor.idVendor); |
| 900 | le16_to_cpus(&dev->descriptor.idProduct); |
| 901 | le16_to_cpus(&dev->descriptor.bcdDevice); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 902 | /* only support for one config for now */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 903 | usb_get_configuration_no(dev, &tmpbuf[0], 0); |
| 904 | usb_parse_config(dev, &tmpbuf[0], 0); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 905 | usb_set_maxpacket(dev); |
| 906 | /* we set the default configuration here */ |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 907 | if (usb_set_configuration(dev, dev->config.desc.bConfigurationValue)) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 908 | printf("failed to set default configuration " \ |
| 909 | "len %d, status %lX\n", dev->act_len, dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 910 | return -1; |
| 911 | } |
| 912 | USB_PRINTF("new device strings: Mfr=%d, Product=%d, SerialNumber=%d\n", |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 913 | dev->descriptor.iManufacturer, dev->descriptor.iProduct, |
| 914 | dev->descriptor.iSerialNumber); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 915 | memset(dev->mf, 0, sizeof(dev->mf)); |
| 916 | memset(dev->prod, 0, sizeof(dev->prod)); |
| 917 | memset(dev->serial, 0, sizeof(dev->serial)); |
| 918 | if (dev->descriptor.iManufacturer) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 919 | usb_string(dev, dev->descriptor.iManufacturer, |
| 920 | dev->mf, sizeof(dev->mf)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 921 | if (dev->descriptor.iProduct) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 922 | usb_string(dev, dev->descriptor.iProduct, |
| 923 | dev->prod, sizeof(dev->prod)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 924 | if (dev->descriptor.iSerialNumber) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 925 | usb_string(dev, dev->descriptor.iSerialNumber, |
| 926 | dev->serial, sizeof(dev->serial)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 927 | USB_PRINTF("Manufacturer %s\n", dev->mf); |
| 928 | USB_PRINTF("Product %s\n", dev->prod); |
| 929 | USB_PRINTF("SerialNumber %s\n", dev->serial); |
| 930 | /* now prode if the device is a hub */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 931 | usb_hub_probe(dev, 0); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 932 | return 0; |
| 933 | } |
| 934 | |
| 935 | /* build device Tree */ |
| 936 | void usb_scan_devices(void) |
| 937 | { |
| 938 | int i; |
| 939 | struct usb_device *dev; |
| 940 | |
| 941 | /* first make all devices unknown */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 942 | for (i = 0; i < USB_MAX_DEVICE; i++) { |
| 943 | memset(&usb_dev[i], 0, sizeof(struct usb_device)); |
Wolfgang Denk | d0ff51b | 2008-07-14 15:19:07 +0200 | [diff] [blame] | 944 | usb_dev[i].devnum = -1; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 945 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 946 | dev_index = 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 947 | /* device 0 is always present (root hub, so let it analyze) */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 948 | dev = usb_alloc_new_device(); |
Bryan Wu | 1a448db | 2009-01-18 23:04:27 -0500 | [diff] [blame] | 949 | if (usb_new_device(dev)) |
| 950 | printf("No USB Device found\n"); |
| 951 | else |
| 952 | printf("%d USB Device(s) found\n", dev_index); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 953 | /* insert "driver" if possible */ |
| 954 | #ifdef CONFIG_USB_KEYBOARD |
| 955 | drv_usb_kbd_init(); |
| 956 | USB_PRINTF("scan end\n"); |
| 957 | #endif |
| 958 | } |
| 959 | |
| 960 | |
| 961 | /**************************************************************************** |
| 962 | * HUB "Driver" |
| 963 | * Probes device for being a hub and configurate it |
| 964 | */ |
| 965 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 966 | #ifdef USB_HUB_DEBUG |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 967 | #define USB_HUB_PRINTF(fmt, args...) printf(fmt , ##args) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 968 | #else |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 969 | #define USB_HUB_PRINTF(fmt, args...) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 970 | #endif |
| 971 | |
| 972 | |
| 973 | static struct usb_hub_device hub_dev[USB_MAX_HUB]; |
| 974 | static int usb_hub_index; |
| 975 | |
| 976 | |
| 977 | int usb_get_hub_descriptor(struct usb_device *dev, void *data, int size) |
| 978 | { |
| 979 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 980 | USB_REQ_GET_DESCRIPTOR, USB_DIR_IN | USB_RT_HUB, |
| 981 | USB_DT_HUB << 8, 0, data, size, USB_CNTL_TIMEOUT); |
| 982 | } |
| 983 | |
| 984 | int usb_clear_hub_feature(struct usb_device *dev, int feature) |
| 985 | { |
| 986 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 987 | USB_REQ_CLEAR_FEATURE, USB_RT_HUB, feature, |
| 988 | 0, NULL, 0, USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 989 | } |
| 990 | |
| 991 | int usb_clear_port_feature(struct usb_device *dev, int port, int feature) |
| 992 | { |
| 993 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 994 | USB_REQ_CLEAR_FEATURE, USB_RT_PORT, feature, |
| 995 | port, NULL, 0, USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 996 | } |
| 997 | |
| 998 | int usb_set_port_feature(struct usb_device *dev, int port, int feature) |
| 999 | { |
| 1000 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1001 | USB_REQ_SET_FEATURE, USB_RT_PORT, feature, |
| 1002 | port, NULL, 0, USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1003 | } |
| 1004 | |
| 1005 | int usb_get_hub_status(struct usb_device *dev, void *data) |
| 1006 | { |
| 1007 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 1008 | USB_REQ_GET_STATUS, USB_DIR_IN | USB_RT_HUB, 0, 0, |
| 1009 | data, sizeof(struct usb_hub_status), USB_CNTL_TIMEOUT); |
| 1010 | } |
| 1011 | |
| 1012 | int usb_get_port_status(struct usb_device *dev, int port, void *data) |
| 1013 | { |
| 1014 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 1015 | USB_REQ_GET_STATUS, USB_DIR_IN | USB_RT_PORT, 0, port, |
| 1016 | data, sizeof(struct usb_hub_status), USB_CNTL_TIMEOUT); |
| 1017 | } |
| 1018 | |
| 1019 | |
| 1020 | static void usb_hub_power_on(struct usb_hub_device *hub) |
| 1021 | { |
| 1022 | int i; |
| 1023 | struct usb_device *dev; |
| 1024 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1025 | dev = hub->pusb_dev; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1026 | /* Enable power to the ports */ |
| 1027 | USB_HUB_PRINTF("enabling power on all ports\n"); |
| 1028 | for (i = 0; i < dev->maxchild; i++) { |
| 1029 | usb_set_port_feature(dev, i + 1, USB_PORT_FEAT_POWER); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1030 | USB_HUB_PRINTF("port %d returns %lX\n", i + 1, dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1031 | wait_ms(hub->desc.bPwrOn2PwrGood * 2); |
| 1032 | } |
| 1033 | } |
| 1034 | |
| 1035 | void usb_hub_reset(void) |
| 1036 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1037 | usb_hub_index = 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1038 | } |
| 1039 | |
| 1040 | struct usb_hub_device *usb_hub_allocate(void) |
| 1041 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1042 | if (usb_hub_index < USB_MAX_HUB) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1043 | return &hub_dev[usb_hub_index++]; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1044 | |
| 1045 | printf("ERROR: USB_MAX_HUB (%d) reached\n", USB_MAX_HUB); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1046 | return NULL; |
| 1047 | } |
| 1048 | |
| 1049 | #define MAX_TRIES 5 |
| 1050 | |
Stefan Roese | f1c1f54 | 2009-01-22 10:11:21 +0100 | [diff] [blame] | 1051 | static inline char *portspeed(int portstatus) |
| 1052 | { |
| 1053 | if (portstatus & (1 << USB_PORT_FEAT_HIGHSPEED)) |
| 1054 | return "480 Mb/s"; |
| 1055 | else if (portstatus & (1 << USB_PORT_FEAT_LOWSPEED)) |
| 1056 | return "1.5 Mb/s"; |
| 1057 | else |
| 1058 | return "12 Mb/s"; |
| 1059 | } |
| 1060 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1061 | static int hub_port_reset(struct usb_device *dev, int port, |
| 1062 | unsigned short *portstat) |
| 1063 | { |
| 1064 | int tries; |
| 1065 | struct usb_port_status portsts; |
| 1066 | unsigned short portstatus, portchange; |
| 1067 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1068 | USB_HUB_PRINTF("hub_port_reset: resetting port %d...\n", port); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1069 | for (tries = 0; tries < MAX_TRIES; tries++) { |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1070 | |
| 1071 | usb_set_port_feature(dev, port + 1, USB_PORT_FEAT_RESET); |
| 1072 | wait_ms(200); |
| 1073 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1074 | if (usb_get_port_status(dev, port + 1, &portsts) < 0) { |
| 1075 | USB_HUB_PRINTF("get_port_status failed status %lX\n", |
| 1076 | dev->status); |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1077 | return -1; |
| 1078 | } |
Christian Eggers | c918261 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 1079 | portstatus = le16_to_cpu(portsts.wPortStatus); |
| 1080 | portchange = le16_to_cpu(portsts.wPortChange); |
Michael Trimarchi | 366523c | 2008-12-18 10:05:37 +0100 | [diff] [blame] | 1081 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1082 | USB_HUB_PRINTF("portstatus %x, change %x, %s\n", |
| 1083 | portstatus, portchange, |
Stefan Roese | f1c1f54 | 2009-01-22 10:11:21 +0100 | [diff] [blame] | 1084 | portspeed(portstatus)); |
Michael Trimarchi | 366523c | 2008-12-18 10:05:37 +0100 | [diff] [blame] | 1085 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1086 | USB_HUB_PRINTF("STAT_C_CONNECTION = %d STAT_CONNECTION = %d" \ |
| 1087 | " USB_PORT_STAT_ENABLE %d\n", |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1088 | (portchange & USB_PORT_STAT_C_CONNECTION) ? 1 : 0, |
| 1089 | (portstatus & USB_PORT_STAT_CONNECTION) ? 1 : 0, |
| 1090 | (portstatus & USB_PORT_STAT_ENABLE) ? 1 : 0); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1091 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1092 | if ((portchange & USB_PORT_STAT_C_CONNECTION) || |
| 1093 | !(portstatus & USB_PORT_STAT_CONNECTION)) |
| 1094 | return -1; |
| 1095 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1096 | if (portstatus & USB_PORT_STAT_ENABLE) |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1097 | break; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1098 | |
| 1099 | wait_ms(200); |
| 1100 | } |
| 1101 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1102 | if (tries == MAX_TRIES) { |
| 1103 | USB_HUB_PRINTF("Cannot enable port %i after %i retries, " \ |
| 1104 | "disabling port.\n", port + 1, MAX_TRIES); |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1105 | USB_HUB_PRINTF("Maybe the USB cable is bad?\n"); |
| 1106 | return -1; |
| 1107 | } |
| 1108 | |
| 1109 | usb_clear_port_feature(dev, port + 1, USB_PORT_FEAT_C_RESET); |
| 1110 | *portstat = portstatus; |
| 1111 | return 0; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1112 | } |
| 1113 | |
| 1114 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1115 | void usb_hub_port_connect_change(struct usb_device *dev, int port) |
| 1116 | { |
| 1117 | struct usb_device *usb; |
| 1118 | struct usb_port_status portsts; |
| 1119 | unsigned short portstatus, portchange; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1120 | |
| 1121 | /* Check status */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1122 | if (usb_get_port_status(dev, port + 1, &portsts) < 0) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1123 | USB_HUB_PRINTF("get_port_status failed\n"); |
| 1124 | return; |
| 1125 | } |
| 1126 | |
Christian Eggers | c918261 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 1127 | portstatus = le16_to_cpu(portsts.wPortStatus); |
| 1128 | portchange = le16_to_cpu(portsts.wPortChange); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1129 | USB_HUB_PRINTF("portstatus %x, change %x, %s\n", |
Stefan Roese | f1c1f54 | 2009-01-22 10:11:21 +0100 | [diff] [blame] | 1130 | portstatus, portchange, portspeed(portstatus)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1131 | |
| 1132 | /* Clear the connection change status */ |
| 1133 | usb_clear_port_feature(dev, port + 1, USB_PORT_FEAT_C_CONNECTION); |
| 1134 | |
| 1135 | /* Disconnect any existing devices under this port */ |
| 1136 | if (((!(portstatus & USB_PORT_STAT_CONNECTION)) && |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1137 | (!(portstatus & USB_PORT_STAT_ENABLE))) || (dev->children[port])) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1138 | USB_HUB_PRINTF("usb_disconnect(&hub->children[port]);\n"); |
| 1139 | /* Return now if nothing is connected */ |
| 1140 | if (!(portstatus & USB_PORT_STAT_CONNECTION)) |
| 1141 | return; |
| 1142 | } |
| 1143 | wait_ms(200); |
| 1144 | |
| 1145 | /* Reset the port */ |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1146 | if (hub_port_reset(dev, port, &portstatus) < 0) { |
| 1147 | printf("cannot reset port %i!?\n", port + 1); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1148 | return; |
| 1149 | } |
| 1150 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1151 | wait_ms(200); |
| 1152 | |
| 1153 | /* Allocate a new device struct for it */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1154 | usb = usb_alloc_new_device(); |
Michael Trimarchi | 366523c | 2008-12-18 10:05:37 +0100 | [diff] [blame] | 1155 | |
| 1156 | if (portstatus & USB_PORT_STAT_HIGH_SPEED) |
| 1157 | usb->speed = USB_SPEED_HIGH; |
| 1158 | else if (portstatus & USB_PORT_STAT_LOW_SPEED) |
| 1159 | usb->speed = USB_SPEED_LOW; |
| 1160 | else |
| 1161 | usb->speed = USB_SPEED_FULL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1162 | |
| 1163 | dev->children[port] = usb; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1164 | usb->parent = dev; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1165 | /* Run it through the hoops (find a driver, etc) */ |
| 1166 | if (usb_new_device(usb)) { |
| 1167 | /* Woops, disable the port */ |
| 1168 | USB_HUB_PRINTF("hub: disabling port %d\n", port + 1); |
| 1169 | usb_clear_port_feature(dev, port + 1, USB_PORT_FEAT_ENABLE); |
| 1170 | } |
| 1171 | } |
| 1172 | |
| 1173 | |
| 1174 | int usb_hub_configure(struct usb_device *dev) |
| 1175 | { |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 1176 | unsigned char buffer[USB_BUFSIZ], *bitmap; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1177 | struct usb_hub_descriptor *descriptor; |
| 1178 | struct usb_hub_status *hubsts; |
| 1179 | int i; |
| 1180 | struct usb_hub_device *hub; |
| 1181 | |
| 1182 | /* "allocate" Hub device */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1183 | hub = usb_hub_allocate(); |
| 1184 | if (hub == NULL) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1185 | return -1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1186 | hub->pusb_dev = dev; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1187 | /* Get the the hub descriptor */ |
| 1188 | if (usb_get_hub_descriptor(dev, buffer, 4) < 0) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1189 | USB_HUB_PRINTF("usb_hub_configure: failed to get hub " \ |
| 1190 | "descriptor, giving up %lX\n", dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1191 | return -1; |
| 1192 | } |
| 1193 | descriptor = (struct usb_hub_descriptor *)buffer; |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 1194 | |
wdenk | e86e5a0 | 2004-10-17 21:12:06 +0000 | [diff] [blame] | 1195 | /* silence compiler warning if USB_BUFSIZ is > 256 [= sizeof(char)] */ |
| 1196 | i = descriptor->bLength; |
| 1197 | if (i > USB_BUFSIZ) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1198 | USB_HUB_PRINTF("usb_hub_configure: failed to get hub " \ |
| 1199 | "descriptor - too long: %d\n", |
| 1200 | descriptor->bLength); |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 1201 | return -1; |
| 1202 | } |
| 1203 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1204 | if (usb_get_hub_descriptor(dev, buffer, descriptor->bLength) < 0) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1205 | USB_HUB_PRINTF("usb_hub_configure: failed to get hub " \ |
| 1206 | "descriptor 2nd giving up %lX\n", dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1207 | return -1; |
| 1208 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1209 | memcpy((unsigned char *)&hub->desc, buffer, descriptor->bLength); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1210 | /* adjust 16bit values */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1211 | hub->desc.wHubCharacteristics = |
| 1212 | le16_to_cpu(descriptor->wHubCharacteristics); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1213 | /* set the bitmap */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1214 | bitmap = (unsigned char *)&hub->desc.DeviceRemovable[0]; |
| 1215 | /* devices not removable by default */ |
| 1216 | memset(bitmap, 0xff, (USB_MAXCHILDREN+1+7)/8); |
| 1217 | bitmap = (unsigned char *)&hub->desc.PortPowerCtrlMask[0]; |
| 1218 | memset(bitmap, 0xff, (USB_MAXCHILDREN+1+7)/8); /* PowerMask = 1B */ |
| 1219 | |
| 1220 | for (i = 0; i < ((hub->desc.bNbrPorts + 1 + 7)/8); i++) |
| 1221 | hub->desc.DeviceRemovable[i] = descriptor->DeviceRemovable[i]; |
| 1222 | |
| 1223 | for (i = 0; i < ((hub->desc.bNbrPorts + 1 + 7)/8); i++) |
Alexander Holler | cb44091 | 2011-01-27 22:50:07 +0100 | [diff] [blame] | 1224 | hub->desc.PortPowerCtrlMask[i] = descriptor->PortPowerCtrlMask[i]; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1225 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1226 | dev->maxchild = descriptor->bNbrPorts; |
| 1227 | USB_HUB_PRINTF("%d ports detected\n", dev->maxchild); |
| 1228 | |
| 1229 | switch (hub->desc.wHubCharacteristics & HUB_CHAR_LPSM) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1230 | case 0x00: |
| 1231 | USB_HUB_PRINTF("ganged power switching\n"); |
| 1232 | break; |
| 1233 | case 0x01: |
| 1234 | USB_HUB_PRINTF("individual port power switching\n"); |
| 1235 | break; |
| 1236 | case 0x02: |
| 1237 | case 0x03: |
| 1238 | USB_HUB_PRINTF("unknown reserved power switching mode\n"); |
| 1239 | break; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1240 | } |
| 1241 | |
| 1242 | if (hub->desc.wHubCharacteristics & HUB_CHAR_COMPOUND) |
| 1243 | USB_HUB_PRINTF("part of a compound device\n"); |
| 1244 | else |
| 1245 | USB_HUB_PRINTF("standalone hub\n"); |
| 1246 | |
| 1247 | switch (hub->desc.wHubCharacteristics & HUB_CHAR_OCPM) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1248 | case 0x00: |
| 1249 | USB_HUB_PRINTF("global over-current protection\n"); |
| 1250 | break; |
| 1251 | case 0x08: |
| 1252 | USB_HUB_PRINTF("individual port over-current protection\n"); |
| 1253 | break; |
| 1254 | case 0x10: |
| 1255 | case 0x18: |
| 1256 | USB_HUB_PRINTF("no over-current protection\n"); |
| 1257 | break; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1258 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1259 | |
| 1260 | USB_HUB_PRINTF("power on to power good time: %dms\n", |
| 1261 | descriptor->bPwrOn2PwrGood * 2); |
| 1262 | USB_HUB_PRINTF("hub controller current requirement: %dmA\n", |
| 1263 | descriptor->bHubContrCurrent); |
| 1264 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1265 | for (i = 0; i < dev->maxchild; i++) |
| 1266 | USB_HUB_PRINTF("port %d is%s removable\n", i + 1, |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1267 | hub->desc.DeviceRemovable[(i + 1) / 8] & \ |
| 1268 | (1 << ((i + 1) % 8)) ? " not" : ""); |
| 1269 | |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 1270 | if (sizeof(struct usb_hub_status) > USB_BUFSIZ) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1271 | USB_HUB_PRINTF("usb_hub_configure: failed to get Status - " \ |
| 1272 | "too long: %d\n", descriptor->bLength); |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 1273 | return -1; |
| 1274 | } |
| 1275 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1276 | if (usb_get_hub_status(dev, buffer) < 0) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1277 | USB_HUB_PRINTF("usb_hub_configure: failed to get Status %lX\n", |
| 1278 | dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1279 | return -1; |
| 1280 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1281 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1282 | hubsts = (struct usb_hub_status *)buffer; |
| 1283 | USB_HUB_PRINTF("get_hub_status returned status %X, change %X\n", |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1284 | le16_to_cpu(hubsts->wHubStatus), |
| 1285 | le16_to_cpu(hubsts->wHubChange)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1286 | USB_HUB_PRINTF("local power source is %s\n", |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1287 | (le16_to_cpu(hubsts->wHubStatus) & HUB_STATUS_LOCAL_POWER) ? \ |
| 1288 | "lost (inactive)" : "good"); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1289 | USB_HUB_PRINTF("%sover-current condition exists\n", |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1290 | (le16_to_cpu(hubsts->wHubStatus) & HUB_STATUS_OVERCURRENT) ? \ |
| 1291 | "" : "no "); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1292 | usb_hub_power_on(hub); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1293 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1294 | for (i = 0; i < dev->maxchild; i++) { |
| 1295 | struct usb_port_status portsts; |
| 1296 | unsigned short portstatus, portchange; |
| 1297 | |
| 1298 | if (usb_get_port_status(dev, i + 1, &portsts) < 0) { |
| 1299 | USB_HUB_PRINTF("get_port_status failed\n"); |
| 1300 | continue; |
| 1301 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1302 | |
Christian Eggers | c918261 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 1303 | portstatus = le16_to_cpu(portsts.wPortStatus); |
| 1304 | portchange = le16_to_cpu(portsts.wPortChange); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1305 | USB_HUB_PRINTF("Port %d Status %X Change %X\n", |
| 1306 | i + 1, portstatus, portchange); |
| 1307 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1308 | if (portchange & USB_PORT_STAT_C_CONNECTION) { |
| 1309 | USB_HUB_PRINTF("port %d connection change\n", i + 1); |
| 1310 | usb_hub_port_connect_change(dev, i); |
| 1311 | } |
| 1312 | if (portchange & USB_PORT_STAT_C_ENABLE) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1313 | USB_HUB_PRINTF("port %d enable change, status %x\n", |
| 1314 | i + 1, portstatus); |
| 1315 | usb_clear_port_feature(dev, i + 1, |
| 1316 | USB_PORT_FEAT_C_ENABLE); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1317 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1318 | /* EM interference sometimes causes bad shielded USB |
| 1319 | * devices to be shutdown by the hub, this hack enables |
| 1320 | * them again. Works at least with mouse driver */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1321 | if (!(portstatus & USB_PORT_STAT_ENABLE) && |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1322 | (portstatus & USB_PORT_STAT_CONNECTION) && |
| 1323 | ((dev->children[i]))) { |
| 1324 | USB_HUB_PRINTF("already running port %i " \ |
| 1325 | "disabled by hub (EMI?), " \ |
| 1326 | "re-enabling...\n", i + 1); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1327 | usb_hub_port_connect_change(dev, i); |
| 1328 | } |
| 1329 | } |
| 1330 | if (portstatus & USB_PORT_STAT_SUSPEND) { |
| 1331 | USB_HUB_PRINTF("port %d suspend change\n", i + 1); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1332 | usb_clear_port_feature(dev, i + 1, |
| 1333 | USB_PORT_FEAT_SUSPEND); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1334 | } |
| 1335 | |
| 1336 | if (portchange & USB_PORT_STAT_C_OVERCURRENT) { |
| 1337 | USB_HUB_PRINTF("port %d over-current change\n", i + 1); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1338 | usb_clear_port_feature(dev, i + 1, |
| 1339 | USB_PORT_FEAT_C_OVER_CURRENT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1340 | usb_hub_power_on(hub); |
| 1341 | } |
| 1342 | |
| 1343 | if (portchange & USB_PORT_STAT_C_RESET) { |
| 1344 | USB_HUB_PRINTF("port %d reset change\n", i + 1); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1345 | usb_clear_port_feature(dev, i + 1, |
| 1346 | USB_PORT_FEAT_C_RESET); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1347 | } |
| 1348 | } /* end for i all ports */ |
| 1349 | |
| 1350 | return 0; |
| 1351 | } |
| 1352 | |
| 1353 | int usb_hub_probe(struct usb_device *dev, int ifnum) |
| 1354 | { |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 1355 | struct usb_interface *iface; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1356 | struct usb_endpoint_descriptor *ep; |
| 1357 | int ret; |
| 1358 | |
| 1359 | iface = &dev->config.if_desc[ifnum]; |
| 1360 | /* Is it a hub? */ |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 1361 | if (iface->desc.bInterfaceClass != USB_CLASS_HUB) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1362 | return 0; |
| 1363 | /* Some hubs have a subclass of 1, which AFAICT according to the */ |
| 1364 | /* specs is not defined, but it works */ |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 1365 | if ((iface->desc.bInterfaceSubClass != 0) && |
| 1366 | (iface->desc.bInterfaceSubClass != 1)) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1367 | return 0; |
| 1368 | /* Multiple endpoints? What kind of mutant ninja-hub is this? */ |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 1369 | if (iface->desc.bNumEndpoints != 1) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1370 | return 0; |
| 1371 | ep = &iface->ep_desc[0]; |
| 1372 | /* Output endpoint? Curiousier and curiousier.. */ |
| 1373 | if (!(ep->bEndpointAddress & USB_DIR_IN)) |
| 1374 | return 0; |
| 1375 | /* If it's not an interrupt endpoint, we'd better punt! */ |
| 1376 | if ((ep->bmAttributes & 3) != 3) |
| 1377 | return 0; |
| 1378 | /* We found a hub */ |
| 1379 | USB_HUB_PRINTF("USB hub found\n"); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1380 | ret = usb_hub_configure(dev); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1381 | return ret; |
| 1382 | } |
| 1383 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1384 | /* EOF */ |