Tom Rini | 83d290c | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 2 | /* |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 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 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 19 | /* |
| 20 | * How it works: |
| 21 | * |
| 22 | * Since this is a bootloader, the devices will not be automatic |
| 23 | * (re)configured on hotplug, but after a restart of the USB the |
| 24 | * device should work. |
| 25 | * |
| 26 | * For each transfer (except "Interrupt") we wait for completion. |
| 27 | */ |
| 28 | #include <common.h> |
| 29 | #include <command.h> |
Simon Glass | 95fbfe4 | 2015-03-25 12:22:08 -0600 | [diff] [blame] | 30 | #include <dm.h> |
Simon Glass | f7ae49f | 2020-05-10 11:40:05 -0600 | [diff] [blame] | 31 | #include <log.h> |
Simon Glass | 336d461 | 2020-02-03 07:36:16 -0700 | [diff] [blame] | 32 | #include <malloc.h> |
Simon Glass | cf92e05 | 2015-09-02 17:24:58 -0600 | [diff] [blame] | 33 | #include <memalign.h> |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 34 | #include <asm/processor.h> |
Mike Frysinger | 66cf641 | 2012-04-04 18:44:53 +0000 | [diff] [blame] | 35 | #include <linux/compiler.h> |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 36 | #include <linux/ctype.h> |
Christian Eggers | c918261 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 37 | #include <asm/byteorder.h> |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 38 | #include <asm/unaligned.h> |
Marek Vasut | 97b9eb9 | 2014-08-01 03:09:53 +0200 | [diff] [blame] | 39 | #include <errno.h> |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 40 | #include <usb.h> |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 41 | |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 42 | #define USB_BUFSIZ 512 |
| 43 | |
Simon Glass | 95fbfe4 | 2015-03-25 12:22:08 -0600 | [diff] [blame] | 44 | static int asynch_allowed; |
| 45 | char usb_started; /* flag for the started/stopped USB status */ |
| 46 | |
Sven Schwermer | fd09c20 | 2018-11-21 08:43:56 +0100 | [diff] [blame] | 47 | #if !CONFIG_IS_ENABLED(DM_USB) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 48 | static struct usb_device usb_dev[USB_MAX_DEVICE]; |
| 49 | static int dev_index; |
Bartlomiej Sieka | e51aae3 | 2006-08-03 23:20:13 +0200 | [diff] [blame] | 50 | |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 51 | #ifndef CONFIG_USB_MAX_CONTROLLER_COUNT |
| 52 | #define CONFIG_USB_MAX_CONTROLLER_COUNT 1 |
| 53 | #endif |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 54 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 55 | /*************************************************************************** |
| 56 | * Init USB Device |
| 57 | */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 58 | int usb_init(void) |
| 59 | { |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 60 | void *ctrl; |
| 61 | struct usb_device *dev; |
| 62 | int i, start_index = 0; |
Hans de Goede | d906bbc | 2015-01-11 20:34:46 +0100 | [diff] [blame] | 63 | int controllers_initialized = 0; |
Marek Vasut | 97b9eb9 | 2014-08-01 03:09:53 +0200 | [diff] [blame] | 64 | int ret; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 65 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 66 | dev_index = 0; |
| 67 | asynch_allowed = 1; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 68 | usb_hub_reset(); |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 69 | |
| 70 | /* first make all devices unknown */ |
| 71 | for (i = 0; i < USB_MAX_DEVICE; i++) { |
| 72 | memset(&usb_dev[i], 0, sizeof(struct usb_device)); |
| 73 | usb_dev[i].devnum = -1; |
| 74 | } |
| 75 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 76 | /* init low_level USB */ |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 77 | for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) { |
| 78 | /* init low_level USB */ |
| 79 | printf("USB%d: ", i); |
Marek Vasut | 97b9eb9 | 2014-08-01 03:09:53 +0200 | [diff] [blame] | 80 | ret = usb_lowlevel_init(i, USB_INIT_HOST, &ctrl); |
| 81 | if (ret == -ENODEV) { /* No such device. */ |
| 82 | puts("Port not available.\n"); |
Hans de Goede | d906bbc | 2015-01-11 20:34:46 +0100 | [diff] [blame] | 83 | controllers_initialized++; |
Marek Vasut | 97b9eb9 | 2014-08-01 03:09:53 +0200 | [diff] [blame] | 84 | continue; |
| 85 | } |
| 86 | |
| 87 | if (ret) { /* Other error. */ |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 88 | puts("lowlevel init failed\n"); |
| 89 | continue; |
| 90 | } |
| 91 | /* |
| 92 | * lowlevel init is OK, now scan the bus for devices |
| 93 | * i.e. search HUBs and configure them |
| 94 | */ |
Hans de Goede | d906bbc | 2015-01-11 20:34:46 +0100 | [diff] [blame] | 95 | controllers_initialized++; |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 96 | start_index = dev_index; |
| 97 | printf("scanning bus %d for devices... ", i); |
Simon Glass | 79b5888 | 2015-03-25 12:22:01 -0600 | [diff] [blame] | 98 | ret = usb_alloc_new_device(ctrl, &dev); |
| 99 | if (ret) |
Paul Kocialkowski | 8879be8 | 2015-04-04 15:12:28 +0200 | [diff] [blame] | 100 | break; |
| 101 | |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 102 | /* |
| 103 | * device 0 is always present |
| 104 | * (root hub, so let it analyze) |
| 105 | */ |
Paul Kocialkowski | 8879be8 | 2015-04-04 15:12:28 +0200 | [diff] [blame] | 106 | ret = usb_new_device(dev); |
| 107 | if (ret) |
Simon Glass | 79b5888 | 2015-03-25 12:22:01 -0600 | [diff] [blame] | 108 | usb_free_device(dev->controller); |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 109 | |
Paul Kocialkowski | 8879be8 | 2015-04-04 15:12:28 +0200 | [diff] [blame] | 110 | if (start_index == dev_index) { |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 111 | puts("No USB Device found\n"); |
Paul Kocialkowski | 8879be8 | 2015-04-04 15:12:28 +0200 | [diff] [blame] | 112 | continue; |
| 113 | } else { |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 114 | printf("%d USB Device(s) found\n", |
| 115 | dev_index - start_index); |
Paul Kocialkowski | 8879be8 | 2015-04-04 15:12:28 +0200 | [diff] [blame] | 116 | } |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 117 | |
Bartlomiej Sieka | e51aae3 | 2006-08-03 23:20:13 +0200 | [diff] [blame] | 118 | usb_started = 1; |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 119 | } |
| 120 | |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 121 | debug("scan end\n"); |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 122 | /* 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] | 123 | if (controllers_initialized == 0) |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 124 | puts("USB error: all controllers failed lowlevel init\n"); |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 125 | |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 126 | return usb_started ? 0 : -ENODEV; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 127 | } |
| 128 | |
| 129 | /****************************************************************************** |
| 130 | * Stop USB this stops the LowLevel Part and deregisters USB devices. |
| 131 | */ |
| 132 | int usb_stop(void) |
| 133 | { |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 134 | int i; |
Remy Bohmer | eba1f2f | 2008-08-20 11:22:02 +0200 | [diff] [blame] | 135 | |
| 136 | if (usb_started) { |
| 137 | asynch_allowed = 1; |
| 138 | usb_started = 0; |
| 139 | usb_hub_reset(); |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 140 | |
| 141 | for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) { |
| 142 | if (usb_lowlevel_stop(i)) |
| 143 | printf("failed to stop USB controller %d\n", i); |
| 144 | } |
Remy Bohmer | eba1f2f | 2008-08-20 11:22:02 +0200 | [diff] [blame] | 145 | } |
Lucas Stach | 93c2582 | 2012-09-26 00:14:36 +0200 | [diff] [blame] | 146 | |
| 147 | return 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 148 | } |
| 149 | |
Vincent Palatin | 08f3bb0 | 2015-05-04 11:30:54 -0600 | [diff] [blame] | 150 | /****************************************************************************** |
| 151 | * Detect if a USB device has been plugged or unplugged. |
| 152 | */ |
| 153 | int usb_detect_change(void) |
| 154 | { |
| 155 | int i, j; |
| 156 | int change = 0; |
| 157 | |
| 158 | for (j = 0; j < USB_MAX_DEVICE; j++) { |
| 159 | for (i = 0; i < usb_dev[j].maxchild; i++) { |
| 160 | struct usb_port_status status; |
| 161 | |
| 162 | if (usb_get_port_status(&usb_dev[j], i + 1, |
| 163 | &status) < 0) |
| 164 | /* USB request failed */ |
| 165 | continue; |
| 166 | |
| 167 | if (le16_to_cpu(status.wPortChange) & |
| 168 | USB_PORT_STAT_C_CONNECTION) |
| 169 | change++; |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | return change; |
| 174 | } |
| 175 | |
Marek Vasut | 31232de | 2020-04-06 14:29:44 +0200 | [diff] [blame] | 176 | /* Lock or unlock async schedule on the controller */ |
| 177 | __weak int usb_lock_async(struct usb_device *dev, int lock) |
| 178 | { |
| 179 | return 0; |
| 180 | } |
| 181 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 182 | /* |
| 183 | * disables the asynch behaviour of the control message. This is used for data |
| 184 | * transfers that uses the exclusiv access to the control and bulk messages. |
Simon Glass | 89d4836 | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 185 | * Returns the old value so it can be restored later. |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 186 | */ |
Simon Glass | 89d4836 | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 187 | int usb_disable_asynch(int disable) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 188 | { |
Simon Glass | 89d4836 | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 189 | int old_value = asynch_allowed; |
| 190 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 191 | asynch_allowed = !disable; |
Simon Glass | 89d4836 | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 192 | return old_value; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 193 | } |
Sven Schwermer | fd09c20 | 2018-11-21 08:43:56 +0100 | [diff] [blame] | 194 | #endif /* !CONFIG_IS_ENABLED(DM_USB) */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 195 | |
| 196 | |
| 197 | /*------------------------------------------------------------------- |
| 198 | * Message wrappers. |
| 199 | * |
| 200 | */ |
| 201 | |
| 202 | /* |
Michal Suchanek | 3437121 | 2019-08-18 10:55:27 +0200 | [diff] [blame] | 203 | * submits an Interrupt Message. Some drivers may implement non-blocking |
| 204 | * polling: when non-block is true and the device is not responding return |
| 205 | * -EAGAIN instead of waiting for device to respond. |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 206 | */ |
Michal Suchanek | fdd135b | 2019-08-18 10:55:25 +0200 | [diff] [blame] | 207 | int usb_int_msg(struct usb_device *dev, unsigned long pipe, |
Michal Suchanek | 3437121 | 2019-08-18 10:55:27 +0200 | [diff] [blame] | 208 | void *buffer, int transfer_len, int interval, bool nonblock) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 209 | { |
Michal Suchanek | 3437121 | 2019-08-18 10:55:27 +0200 | [diff] [blame] | 210 | return submit_int_msg(dev, pipe, buffer, transfer_len, interval, |
| 211 | nonblock); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | /* |
| 215 | * submits a control message and waits for comletion (at least timeout * 1ms) |
| 216 | * If timeout is 0, we don't wait for completion (used as example to set and |
| 217 | * clear keyboards LEDs). For data transfers, (storage transfers) we don't |
| 218 | * allow control messages with 0 timeout, by previousely resetting the flag |
| 219 | * asynch_allowed (usb_disable_asynch(1)). |
Vagrant Cascadian | a6f70a3 | 2016-03-15 12:16:39 -0700 | [diff] [blame] | 220 | * returns the transferred length if OK or -1 if error. The transferred length |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 221 | * and the current status are stored in the dev->act_len and dev->status. |
| 222 | */ |
| 223 | int usb_control_msg(struct usb_device *dev, unsigned int pipe, |
| 224 | unsigned char request, unsigned char requesttype, |
| 225 | unsigned short value, unsigned short index, |
| 226 | void *data, unsigned short size, int timeout) |
| 227 | { |
Puneet Saxena | f576613 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 228 | ALLOC_CACHE_ALIGN_BUFFER(struct devrequest, setup_packet, 1); |
Hans de Goede | 651d95c | 2015-05-10 14:10:14 +0200 | [diff] [blame] | 229 | int err; |
Marek Vasut | e159e48 | 2012-02-13 18:58:18 +0000 | [diff] [blame] | 230 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 231 | if ((timeout == 0) && (!asynch_allowed)) { |
| 232 | /* request for a asynch control pipe is not allowed */ |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 233 | return -EINVAL; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 234 | } |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 235 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 236 | /* set setup command */ |
Puneet Saxena | f576613 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 237 | setup_packet->requesttype = requesttype; |
| 238 | setup_packet->request = request; |
| 239 | setup_packet->value = cpu_to_le16(value); |
| 240 | setup_packet->index = cpu_to_le16(index); |
| 241 | setup_packet->length = cpu_to_le16(size); |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 242 | debug("usb_control_msg: request: 0x%X, requesttype: 0x%X, " \ |
| 243 | "value 0x%X index 0x%X length 0x%X\n", |
| 244 | request, requesttype, value, index, size); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 245 | dev->status = USB_ST_NOT_PROC; /*not yet processed */ |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 246 | |
Hans de Goede | 651d95c | 2015-05-10 14:10:14 +0200 | [diff] [blame] | 247 | err = submit_control_msg(dev, pipe, data, size, setup_packet); |
| 248 | if (err < 0) |
| 249 | return err; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 250 | if (timeout == 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 251 | return (int)size; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 252 | |
Remy Bohmer | 84d36b3 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 253 | /* |
| 254 | * Wait for status to update until timeout expires, USB driver |
| 255 | * interrupt handler may set the status when the USB operation has |
| 256 | * been completed. |
| 257 | */ |
| 258 | while (timeout--) { |
| 259 | if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) |
| 260 | break; |
Mike Frysinger | 5b84dd6 | 2012-03-05 13:47:00 +0000 | [diff] [blame] | 261 | mdelay(1); |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 262 | } |
Remy Bohmer | 84d36b3 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 263 | if (dev->status) |
| 264 | return -1; |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 265 | |
| 266 | return dev->act_len; |
Remy Bohmer | 84d36b3 | 2010-02-01 19:40:47 +0100 | [diff] [blame] | 267 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 268 | } |
| 269 | |
| 270 | /*------------------------------------------------------------------- |
| 271 | * submits bulk message, and waits for completion. returns 0 if Ok or |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 272 | * negative if Error. |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 273 | * synchronous behavior |
| 274 | */ |
| 275 | int usb_bulk_msg(struct usb_device *dev, unsigned int pipe, |
| 276 | void *data, int len, int *actual_length, int timeout) |
| 277 | { |
| 278 | if (len < 0) |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 279 | return -EINVAL; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 280 | dev->status = USB_ST_NOT_PROC; /*not yet processed */ |
Ilya Yanok | fd06028 | 2012-07-15 04:43:51 +0000 | [diff] [blame] | 281 | if (submit_bulk_msg(dev, pipe, data, len) < 0) |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 282 | return -EIO; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 283 | while (timeout--) { |
| 284 | if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 285 | break; |
Mike Frysinger | 5b84dd6 | 2012-03-05 13:47:00 +0000 | [diff] [blame] | 286 | mdelay(1); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 287 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 288 | *actual_length = dev->act_len; |
| 289 | if (dev->status == 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 290 | return 0; |
| 291 | else |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 292 | return -EIO; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 293 | } |
| 294 | |
| 295 | |
| 296 | /*------------------------------------------------------------------- |
| 297 | * Max Packet stuff |
| 298 | */ |
| 299 | |
| 300 | /* |
| 301 | * returns the max packet size, depending on the pipe direction and |
| 302 | * the configurations values |
| 303 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 304 | int usb_maxpacket(struct usb_device *dev, unsigned long pipe) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 305 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 306 | /* direction is out -> use emaxpacket out */ |
| 307 | if ((pipe & USB_DIR_IN) == 0) |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 308 | return dev->epmaxpacketout[((pipe>>15) & 0xf)]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 309 | else |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 310 | return dev->epmaxpacketin[((pipe>>15) & 0xf)]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 311 | } |
| 312 | |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 313 | /* |
| 314 | * 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] | 315 | * usb_set_maxpacket(), because the optimizer of GCC 4.x chokes on this routine |
| 316 | * when it is inlined in 1 single routine. What happens is that the register r3 |
| 317 | * is used as loop-count 'i', but gets overwritten later on. |
| 318 | * This is clearly a compiler bug, but it is easier to workaround it here than |
| 319 | * to update the compiler (Occurs with at least several GCC 4.{1,2},x |
| 320 | * CodeSourcery compilers like e.g. 2007q3, 2008q1, 2008q3 lite editions on ARM) |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 321 | * |
| 322 | * NOTE: Similar behaviour was observed with GCC4.6 on ARMv5. |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 323 | */ |
Mike Frysinger | 66cf641 | 2012-04-04 18:44:53 +0000 | [diff] [blame] | 324 | static void noinline |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 325 | 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] | 326 | { |
| 327 | int b; |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 328 | struct usb_endpoint_descriptor *ep; |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 329 | u16 ep_wMaxPacketSize; |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 330 | |
| 331 | ep = &dev->config.if_desc[if_idx].ep_desc[ep_idx]; |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 332 | |
| 333 | b = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 334 | ep_wMaxPacketSize = get_unaligned(&ep->wMaxPacketSize); |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 335 | |
| 336 | if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == |
| 337 | USB_ENDPOINT_XFER_CONTROL) { |
| 338 | /* Control => bidirectional */ |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 339 | dev->epmaxpacketout[b] = ep_wMaxPacketSize; |
| 340 | dev->epmaxpacketin[b] = ep_wMaxPacketSize; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 341 | debug("##Control EP epmaxpacketout/in[%d] = %d\n", |
| 342 | b, dev->epmaxpacketin[b]); |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 343 | } else { |
| 344 | if ((ep->bEndpointAddress & 0x80) == 0) { |
| 345 | /* OUT Endpoint */ |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 346 | if (ep_wMaxPacketSize > dev->epmaxpacketout[b]) { |
| 347 | dev->epmaxpacketout[b] = ep_wMaxPacketSize; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 348 | debug("##EP epmaxpacketout[%d] = %d\n", |
| 349 | b, dev->epmaxpacketout[b]); |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 350 | } |
| 351 | } else { |
| 352 | /* IN Endpoint */ |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 353 | if (ep_wMaxPacketSize > dev->epmaxpacketin[b]) { |
| 354 | dev->epmaxpacketin[b] = ep_wMaxPacketSize; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 355 | debug("##EP epmaxpacketin[%d] = %d\n", |
| 356 | b, dev->epmaxpacketin[b]); |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 357 | } |
| 358 | } /* if out */ |
| 359 | } /* if control */ |
| 360 | } |
| 361 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 362 | /* |
| 363 | * set the max packed value of all endpoints in the given configuration |
| 364 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 365 | static int usb_set_maxpacket(struct usb_device *dev) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 366 | { |
Remy Bohmer | be19d32 | 2008-09-16 14:55:42 +0200 | [diff] [blame] | 367 | int i, ii; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 368 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 369 | for (i = 0; i < dev->config.desc.bNumInterfaces; i++) |
| 370 | for (ii = 0; ii < dev->config.if_desc[i].desc.bNumEndpoints; ii++) |
Marek Vasut | 5e8baf8 | 2011-11-05 23:35:12 +0100 | [diff] [blame] | 371 | usb_set_maxpacket_ep(dev, i, ii); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 372 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 373 | return 0; |
| 374 | } |
| 375 | |
| 376 | /******************************************************************************* |
| 377 | * Parse the config, located in buffer, and fills the dev->config structure. |
| 378 | * Note that all little/big endian swapping are done automatically. |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 379 | * (wTotalLength has already been swapped and sanitized when it was read.) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 380 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 381 | static int usb_parse_config(struct usb_device *dev, |
| 382 | unsigned char *buffer, int cfgno) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 383 | { |
| 384 | struct usb_descriptor_header *head; |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 385 | int index, ifno, epno, curr_if_num; |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 386 | u16 ep_wMaxPacketSize; |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 387 | struct usb_interface *if_desc = NULL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 388 | |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 389 | ifno = -1; |
| 390 | epno = -1; |
| 391 | curr_if_num = -1; |
| 392 | |
| 393 | dev->configno = cfgno; |
| 394 | head = (struct usb_descriptor_header *) &buffer[0]; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 395 | if (head->bDescriptorType != USB_DT_CONFIG) { |
| 396 | printf(" ERROR: NOT USB_CONFIG_DESC %x\n", |
| 397 | head->bDescriptorType); |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 398 | return -EINVAL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 399 | } |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 400 | if (head->bLength != USB_DT_CONFIG_SIZE) { |
| 401 | printf("ERROR: Invalid USB CFG length (%d)\n", head->bLength); |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 402 | return -EINVAL; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 403 | } |
| 404 | memcpy(&dev->config, head, USB_DT_CONFIG_SIZE); |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 405 | dev->config.no_of_if = 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 406 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 407 | index = dev->config.desc.bLength; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 408 | /* Ok the first entry must be a configuration entry, |
| 409 | * now process the others */ |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 410 | head = (struct usb_descriptor_header *) &buffer[index]; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 411 | while (index + 1 < dev->config.desc.wTotalLength && head->bLength) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 412 | switch (head->bDescriptorType) { |
| 413 | case USB_DT_INTERFACE: |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 414 | if (head->bLength != USB_DT_INTERFACE_SIZE) { |
| 415 | printf("ERROR: Invalid USB IF length (%d)\n", |
| 416 | head->bLength); |
| 417 | break; |
| 418 | } |
| 419 | if (index + USB_DT_INTERFACE_SIZE > |
| 420 | dev->config.desc.wTotalLength) { |
| 421 | puts("USB IF descriptor overflowed buffer!\n"); |
| 422 | break; |
| 423 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 424 | if (((struct usb_interface_descriptor *) \ |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 425 | head)->bInterfaceNumber != curr_if_num) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 426 | /* this is a new interface, copy new desc */ |
| 427 | ifno = dev->config.no_of_if; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 428 | if (ifno >= USB_MAXINTERFACES) { |
| 429 | puts("Too many USB interfaces!\n"); |
| 430 | /* try to go on with what we have */ |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 431 | return -EINVAL; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 432 | } |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 433 | if_desc = &dev->config.if_desc[ifno]; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 434 | dev->config.no_of_if++; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 435 | memcpy(if_desc, head, |
| 436 | USB_DT_INTERFACE_SIZE); |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 437 | if_desc->no_of_ep = 0; |
| 438 | if_desc->num_altsetting = 1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 439 | curr_if_num = |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 440 | if_desc->desc.bInterfaceNumber; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 441 | } else { |
| 442 | /* found alternate setting for the interface */ |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 443 | if (ifno >= 0) { |
| 444 | if_desc = &dev->config.if_desc[ifno]; |
| 445 | if_desc->num_altsetting++; |
| 446 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 447 | } |
| 448 | break; |
| 449 | case USB_DT_ENDPOINT: |
Bin Meng | 2f0eb2a | 2017-09-18 06:40:40 -0700 | [diff] [blame] | 450 | if (head->bLength != USB_DT_ENDPOINT_SIZE && |
| 451 | head->bLength != USB_DT_ENDPOINT_AUDIO_SIZE) { |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 452 | printf("ERROR: Invalid USB EP length (%d)\n", |
| 453 | head->bLength); |
| 454 | break; |
| 455 | } |
Bin Meng | 2f0eb2a | 2017-09-18 06:40:40 -0700 | [diff] [blame] | 456 | if (index + head->bLength > |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 457 | dev->config.desc.wTotalLength) { |
| 458 | puts("USB EP descriptor overflowed buffer!\n"); |
| 459 | break; |
| 460 | } |
| 461 | if (ifno < 0) { |
| 462 | puts("Endpoint descriptor out of order!\n"); |
| 463 | break; |
| 464 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 465 | epno = dev->config.if_desc[ifno].no_of_ep; |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 466 | if_desc = &dev->config.if_desc[ifno]; |
Peng Fan | 447b9cd | 2016-01-12 15:57:01 +0800 | [diff] [blame] | 467 | if (epno >= USB_MAXENDPOINTS) { |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 468 | printf("Interface %d has too many endpoints!\n", |
| 469 | if_desc->desc.bInterfaceNumber); |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 470 | return -EINVAL; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 471 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 472 | /* found an endpoint */ |
Vivek Gautam | 605bd75 | 2013-04-12 16:34:34 +0530 | [diff] [blame] | 473 | if_desc->no_of_ep++; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 474 | memcpy(&if_desc->ep_desc[epno], head, |
| 475 | USB_DT_ENDPOINT_SIZE); |
Tom Rini | b2fb47f | 2011-12-15 08:40:51 -0700 | [diff] [blame] | 476 | ep_wMaxPacketSize = get_unaligned(&dev->config.\ |
| 477 | if_desc[ifno].\ |
| 478 | ep_desc[epno].\ |
| 479 | wMaxPacketSize); |
| 480 | put_unaligned(le16_to_cpu(ep_wMaxPacketSize), |
| 481 | &dev->config.\ |
| 482 | if_desc[ifno].\ |
| 483 | ep_desc[epno].\ |
| 484 | wMaxPacketSize); |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 485 | debug("if %d, ep %d\n", ifno, epno); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 486 | break; |
Vivek Gautam | 6497c66 | 2013-04-12 16:34:38 +0530 | [diff] [blame] | 487 | case USB_DT_SS_ENDPOINT_COMP: |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 488 | if (head->bLength != USB_DT_SS_EP_COMP_SIZE) { |
| 489 | printf("ERROR: Invalid USB EPC length (%d)\n", |
| 490 | head->bLength); |
| 491 | break; |
| 492 | } |
| 493 | if (index + USB_DT_SS_EP_COMP_SIZE > |
| 494 | dev->config.desc.wTotalLength) { |
| 495 | puts("USB EPC descriptor overflowed buffer!\n"); |
| 496 | break; |
| 497 | } |
| 498 | if (ifno < 0 || epno < 0) { |
| 499 | puts("EPC descriptor out of order!\n"); |
| 500 | break; |
| 501 | } |
Vivek Gautam | 6497c66 | 2013-04-12 16:34:38 +0530 | [diff] [blame] | 502 | if_desc = &dev->config.if_desc[ifno]; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 503 | memcpy(&if_desc->ss_ep_comp_desc[epno], head, |
| 504 | USB_DT_SS_EP_COMP_SIZE); |
Vivek Gautam | 6497c66 | 2013-04-12 16:34:38 +0530 | [diff] [blame] | 505 | break; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 506 | default: |
| 507 | if (head->bLength == 0) |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 508 | return -EINVAL; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 509 | |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 510 | debug("unknown Description Type : %x\n", |
| 511 | head->bDescriptorType); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 512 | |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 513 | #ifdef DEBUG |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 514 | { |
Wolfgang Denk | fad2e1b | 2011-10-05 23:11:19 +0200 | [diff] [blame] | 515 | unsigned char *ch = (unsigned char *)head; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 516 | int i; |
| 517 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 518 | for (i = 0; i < head->bLength; i++) |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 519 | debug("%02X ", *ch++); |
| 520 | debug("\n\n\n"); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 521 | } |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 522 | #endif |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 523 | break; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 524 | } |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 525 | index += head->bLength; |
| 526 | head = (struct usb_descriptor_header *)&buffer[index]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 527 | } |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 528 | return 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 529 | } |
| 530 | |
| 531 | /*********************************************************************** |
| 532 | * Clears an endpoint |
| 533 | * endp: endpoint number in bits 0-3; |
| 534 | * direction flag in bit 7 (1 = IN, 0 = OUT) |
| 535 | */ |
| 536 | int usb_clear_halt(struct usb_device *dev, int pipe) |
| 537 | { |
| 538 | int result; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 539 | int endp = usb_pipeendpoint(pipe)|(usb_pipein(pipe)<<7); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 540 | |
| 541 | result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 542 | USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 0, |
| 543 | endp, NULL, 0, USB_CNTL_TIMEOUT * 3); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 544 | |
| 545 | /* don't clear if failed */ |
| 546 | if (result < 0) |
| 547 | return result; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 548 | |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 549 | /* |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 550 | * NOTE: we do not get status and verify reset was successful |
| 551 | * as some devices are reported to lock up upon this check.. |
| 552 | */ |
| 553 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 554 | usb_endpoint_running(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)); |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 555 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 556 | /* toggle is reset on clear */ |
| 557 | usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 0); |
| 558 | return 0; |
| 559 | } |
| 560 | |
| 561 | |
| 562 | /********************************************************************** |
| 563 | * get_descriptor type |
| 564 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 565 | static int usb_get_descriptor(struct usb_device *dev, unsigned char type, |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 566 | unsigned char index, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 567 | { |
Masahiro Yamada | 8319aeb | 2016-09-06 22:17:35 +0900 | [diff] [blame] | 568 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 569 | USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, |
| 570 | (type << 8) + index, 0, buf, size, |
| 571 | USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 572 | } |
| 573 | |
| 574 | /********************************************************************** |
Stefan BrĂ¼ns | c75f57f | 2015-12-22 01:18:13 +0100 | [diff] [blame] | 575 | * gets len of configuration cfgno |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 576 | */ |
Stefan BrĂ¼ns | c75f57f | 2015-12-22 01:18:13 +0100 | [diff] [blame] | 577 | int usb_get_configuration_len(struct usb_device *dev, int cfgno) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 578 | { |
Wolfgang Denk | 53677ef | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 579 | int result; |
Stefan BrĂ¼ns | c75f57f | 2015-12-22 01:18:13 +0100 | [diff] [blame] | 580 | ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, 9); |
Ilya Yanok | c60795f | 2012-11-06 13:48:20 +0000 | [diff] [blame] | 581 | struct usb_config_descriptor *config; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 582 | |
Ilya Yanok | c60795f | 2012-11-06 13:48:20 +0000 | [diff] [blame] | 583 | config = (struct usb_config_descriptor *)&buffer[0]; |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 584 | result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 9); |
| 585 | if (result < 9) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 586 | if (result < 0) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 587 | printf("unable to get descriptor, error %lX\n", |
| 588 | dev->status); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 589 | else |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 590 | printf("config descriptor too short " \ |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 591 | "(expected %i, got %i)\n", 9, result); |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 592 | return -EIO; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 593 | } |
Stefan BrĂ¼ns | c75f57f | 2015-12-22 01:18:13 +0100 | [diff] [blame] | 594 | return le16_to_cpu(config->wTotalLength); |
| 595 | } |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 596 | |
Stefan BrĂ¼ns | c75f57f | 2015-12-22 01:18:13 +0100 | [diff] [blame] | 597 | /********************************************************************** |
| 598 | * gets configuration cfgno and store it in the buffer |
| 599 | */ |
| 600 | int usb_get_configuration_no(struct usb_device *dev, int cfgno, |
| 601 | unsigned char *buffer, int length) |
| 602 | { |
| 603 | int result; |
| 604 | struct usb_config_descriptor *config; |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 605 | |
Stefan BrĂ¼ns | c75f57f | 2015-12-22 01:18:13 +0100 | [diff] [blame] | 606 | config = (struct usb_config_descriptor *)&buffer[0]; |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 607 | result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, length); |
Stefan BrĂ¼ns | c75f57f | 2015-12-22 01:18:13 +0100 | [diff] [blame] | 608 | debug("get_conf_no %d Result %d, wLength %d\n", cfgno, result, |
| 609 | le16_to_cpu(config->wTotalLength)); |
| 610 | config->wTotalLength = result; /* validated, with CPU byte order */ |
Julius Werner | eaf3e61 | 2013-07-19 13:12:08 -0700 | [diff] [blame] | 611 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 612 | return result; |
| 613 | } |
| 614 | |
| 615 | /******************************************************************** |
| 616 | * set address of a device to the value in dev->devnum. |
| 617 | * This can only be done by addressing the device via the default address (0) |
| 618 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 619 | static int usb_set_address(struct usb_device *dev) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 620 | { |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 621 | debug("set address %d\n", dev->devnum); |
Masahiro Yamada | 8319aeb | 2016-09-06 22:17:35 +0900 | [diff] [blame] | 622 | |
| 623 | return usb_control_msg(dev, usb_snddefctrl(dev), USB_REQ_SET_ADDRESS, |
| 624 | 0, (dev->devnum), 0, NULL, 0, USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 625 | } |
| 626 | |
| 627 | /******************************************************************** |
| 628 | * set interface number to interface |
| 629 | */ |
| 630 | int usb_set_interface(struct usb_device *dev, int interface, int alternate) |
| 631 | { |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 632 | struct usb_interface *if_face = NULL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 633 | int ret, i; |
| 634 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 635 | for (i = 0; i < dev->config.desc.bNumInterfaces; i++) { |
| 636 | if (dev->config.if_desc[i].desc.bInterfaceNumber == interface) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 637 | if_face = &dev->config.if_desc[i]; |
| 638 | break; |
| 639 | } |
| 640 | } |
| 641 | if (!if_face) { |
| 642 | printf("selecting invalid interface %d", interface); |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 643 | return -EINVAL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 644 | } |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 645 | /* |
| 646 | * We should return now for devices with only one alternate setting. |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 647 | * According to 9.4.10 of the Universal Serial Bus Specification |
| 648 | * Revision 2.0 such devices can return with a STALL. This results in |
| 649 | * some USB sticks timeouting during initialization and then being |
| 650 | * unusable in U-Boot. |
Bartlomiej Sieka | 7455af4 | 2006-08-02 00:54:18 +0200 | [diff] [blame] | 651 | */ |
| 652 | if (if_face->num_altsetting == 1) |
| 653 | return 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 654 | |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 655 | ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 656 | USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE, |
| 657 | alternate, interface, NULL, 0, |
| 658 | USB_CNTL_TIMEOUT * 5); |
| 659 | if (ret < 0) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 660 | return ret; |
| 661 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 662 | return 0; |
| 663 | } |
| 664 | |
| 665 | /******************************************************************** |
| 666 | * set configuration number to configuration |
| 667 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 668 | static int usb_set_configuration(struct usb_device *dev, int configuration) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 669 | { |
| 670 | int res; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 671 | debug("set configuration %d\n", configuration); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 672 | /* set setup command */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 673 | res = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 674 | USB_REQ_SET_CONFIGURATION, 0, |
| 675 | configuration, 0, |
| 676 | NULL, 0, USB_CNTL_TIMEOUT); |
| 677 | if (res == 0) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 678 | dev->toggle[0] = 0; |
| 679 | dev->toggle[1] = 0; |
| 680 | return 0; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 681 | } else |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 682 | return -EIO; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 683 | } |
| 684 | |
| 685 | /******************************************************************** |
| 686 | * set protocol to protocol |
| 687 | */ |
| 688 | int usb_set_protocol(struct usb_device *dev, int ifnum, int protocol) |
| 689 | { |
| 690 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 691 | USB_REQ_SET_PROTOCOL, USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 692 | protocol, ifnum, NULL, 0, USB_CNTL_TIMEOUT); |
| 693 | } |
| 694 | |
| 695 | /******************************************************************** |
| 696 | * set idle |
| 697 | */ |
| 698 | int usb_set_idle(struct usb_device *dev, int ifnum, int duration, int report_id) |
| 699 | { |
| 700 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 701 | USB_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 702 | (duration << 8) | report_id, ifnum, NULL, 0, USB_CNTL_TIMEOUT); |
| 703 | } |
| 704 | |
| 705 | /******************************************************************** |
| 706 | * get report |
| 707 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 708 | int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type, |
| 709 | unsigned char id, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 710 | { |
| 711 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 712 | USB_REQ_GET_REPORT, |
| 713 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 714 | (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 715 | } |
| 716 | |
| 717 | /******************************************************************** |
| 718 | * get class descriptor |
| 719 | */ |
| 720 | int usb_get_class_descriptor(struct usb_device *dev, int ifnum, |
| 721 | unsigned char type, unsigned char id, void *buf, int size) |
| 722 | { |
| 723 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 724 | USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN, |
| 725 | (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT); |
| 726 | } |
| 727 | |
| 728 | /******************************************************************** |
| 729 | * get string index in buffer |
| 730 | */ |
Marek Vasut | c08b1b2 | 2012-02-13 18:58:16 +0000 | [diff] [blame] | 731 | static int usb_get_string(struct usb_device *dev, unsigned short langid, |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 732 | unsigned char index, void *buf, int size) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 733 | { |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 734 | int i; |
| 735 | int result; |
| 736 | |
| 737 | for (i = 0; i < 3; ++i) { |
| 738 | /* some devices are flaky */ |
| 739 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 740 | USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 741 | (USB_DT_STRING << 8) + index, langid, buf, size, |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 742 | USB_CNTL_TIMEOUT); |
| 743 | |
| 744 | if (result > 0) |
| 745 | break; |
Wolfgang Denk | 095b8a3 | 2005-08-02 17:06:17 +0200 | [diff] [blame] | 746 | } |
| 747 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 748 | return result; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 749 | } |
| 750 | |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 751 | |
| 752 | static void usb_try_string_workarounds(unsigned char *buf, int *length) |
| 753 | { |
| 754 | int newlength, oldlength = *length; |
| 755 | |
| 756 | for (newlength = 2; newlength + 1 < oldlength; newlength += 2) |
| 757 | if (!isprint(buf[newlength]) || buf[newlength + 1]) |
| 758 | break; |
| 759 | |
| 760 | if (newlength > 2) { |
| 761 | buf[0] = newlength; |
| 762 | *length = newlength; |
| 763 | } |
| 764 | } |
| 765 | |
| 766 | |
| 767 | static int usb_string_sub(struct usb_device *dev, unsigned int langid, |
| 768 | unsigned int index, unsigned char *buf) |
| 769 | { |
| 770 | int rc; |
| 771 | |
| 772 | /* Try to read the string descriptor by asking for the maximum |
| 773 | * possible number of bytes */ |
| 774 | rc = usb_get_string(dev, langid, index, buf, 255); |
| 775 | |
| 776 | /* If that failed try to read the descriptor length, then |
| 777 | * ask for just that many bytes */ |
| 778 | if (rc < 2) { |
| 779 | rc = usb_get_string(dev, langid, index, buf, 2); |
| 780 | if (rc == 2) |
| 781 | rc = usb_get_string(dev, langid, index, buf, buf[0]); |
| 782 | } |
| 783 | |
| 784 | if (rc >= 2) { |
| 785 | if (!buf[0] && !buf[1]) |
| 786 | usb_try_string_workarounds(buf, &rc); |
| 787 | |
| 788 | /* There might be extra junk at the end of the descriptor */ |
| 789 | if (buf[0] < rc) |
| 790 | rc = buf[0]; |
| 791 | |
| 792 | rc = rc - (rc & 1); /* force a multiple of two */ |
| 793 | } |
| 794 | |
| 795 | if (rc < 2) |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 796 | rc = -EINVAL; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 797 | |
| 798 | return rc; |
| 799 | } |
| 800 | |
| 801 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 802 | /******************************************************************** |
| 803 | * usb_string: |
| 804 | * Get string index and translate it to ascii. |
| 805 | * returns string length (> 0) or error (< 0) |
| 806 | */ |
| 807 | int usb_string(struct usb_device *dev, int index, char *buf, size_t size) |
| 808 | { |
Puneet Saxena | f576613 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 809 | ALLOC_CACHE_ALIGN_BUFFER(unsigned char, mybuf, USB_BUFSIZ); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 810 | unsigned char *tbuf; |
| 811 | int err; |
| 812 | unsigned int u, idx; |
| 813 | |
| 814 | if (size <= 0 || !buf || !index) |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 815 | return -EINVAL; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 816 | buf[0] = 0; |
Wolfgang Denk | d0ff51b | 2008-07-14 15:19:07 +0200 | [diff] [blame] | 817 | tbuf = &mybuf[0]; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 818 | |
| 819 | /* get langid for strings if it's not yet known */ |
| 820 | if (!dev->have_langid) { |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 821 | err = usb_string_sub(dev, 0, 0, tbuf); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 822 | if (err < 0) { |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 823 | debug("error getting string descriptor 0 " \ |
| 824 | "(error=%lx)\n", dev->status); |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 825 | return -EIO; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 826 | } else if (tbuf[0] < 4) { |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 827 | debug("string descriptor 0 too short\n"); |
Paul Kocialkowski | 5a80b34 | 2015-04-04 15:12:27 +0200 | [diff] [blame] | 828 | return -EIO; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 829 | } else { |
| 830 | dev->have_langid = -1; |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 831 | dev->string_langid = tbuf[2] | (tbuf[3] << 8); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 832 | /* always use the first langid listed */ |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 833 | debug("USB device number %d default " \ |
| 834 | "language ID 0x%x\n", |
| 835 | dev->devnum, dev->string_langid); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 836 | } |
| 837 | } |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 838 | |
| 839 | err = usb_string_sub(dev, dev->string_langid, index, tbuf); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 840 | if (err < 0) |
| 841 | return err; |
wdenk | cd0a9de | 2004-02-23 20:48:38 +0000 | [diff] [blame] | 842 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 843 | size--; /* leave room for trailing NULL char in output buffer */ |
| 844 | for (idx = 0, u = 2; u < err; u += 2) { |
| 845 | if (idx >= size) |
| 846 | break; |
| 847 | if (tbuf[u+1]) /* high byte */ |
| 848 | buf[idx++] = '?'; /* non-ASCII character */ |
| 849 | else |
| 850 | buf[idx++] = tbuf[u]; |
| 851 | } |
| 852 | buf[idx] = 0; |
| 853 | err = idx; |
| 854 | return err; |
| 855 | } |
| 856 | |
| 857 | |
| 858 | /******************************************************************** |
| 859 | * USB device handling: |
| 860 | * the USB device are static allocated [USB_MAX_DEVICE]. |
| 861 | */ |
| 862 | |
Sven Schwermer | fd09c20 | 2018-11-21 08:43:56 +0100 | [diff] [blame] | 863 | #if !CONFIG_IS_ENABLED(DM_USB) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 864 | |
| 865 | /* returns a pointer to the device with the index [index]. |
| 866 | * if the device is not assigned (dev->devnum==-1) returns NULL |
| 867 | */ |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 868 | struct usb_device *usb_get_dev_index(int index) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 869 | { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 870 | if (usb_dev[index].devnum == -1) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 871 | return NULL; |
| 872 | else |
| 873 | return &usb_dev[index]; |
| 874 | } |
| 875 | |
Simon Glass | 79b5888 | 2015-03-25 12:22:01 -0600 | [diff] [blame] | 876 | int usb_alloc_new_device(struct udevice *controller, struct usb_device **devp) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 877 | { |
| 878 | int i; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 879 | debug("New Device %d\n", dev_index); |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 880 | if (dev_index == USB_MAX_DEVICE) { |
| 881 | printf("ERROR, too many USB Devices, max=%d\n", USB_MAX_DEVICE); |
Simon Glass | 79b5888 | 2015-03-25 12:22:01 -0600 | [diff] [blame] | 882 | return -ENOSPC; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 883 | } |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 884 | /* default Address is 0, real addresses start with 1 */ |
| 885 | usb_dev[dev_index].devnum = dev_index + 1; |
| 886 | usb_dev[dev_index].maxchild = 0; |
| 887 | for (i = 0; i < USB_MAXCHILDREN; i++) |
| 888 | usb_dev[dev_index].children[i] = NULL; |
| 889 | usb_dev[dev_index].parent = NULL; |
Lucas Stach | c7e3b2b | 2012-09-26 00:14:34 +0200 | [diff] [blame] | 890 | usb_dev[dev_index].controller = controller; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 891 | dev_index++; |
Simon Glass | 79b5888 | 2015-03-25 12:22:01 -0600 | [diff] [blame] | 892 | *devp = &usb_dev[dev_index - 1]; |
| 893 | |
| 894 | return 0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 895 | } |
| 896 | |
Milind Choudhary | 359439d | 2012-12-12 17:55:28 -0800 | [diff] [blame] | 897 | /* |
| 898 | * Free the newly created device node. |
| 899 | * Called in error cases where configuring a newly attached |
| 900 | * device fails for some reason. |
| 901 | */ |
Simon Glass | 79b5888 | 2015-03-25 12:22:01 -0600 | [diff] [blame] | 902 | void usb_free_device(struct udevice *controller) |
Milind Choudhary | 359439d | 2012-12-12 17:55:28 -0800 | [diff] [blame] | 903 | { |
| 904 | dev_index--; |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 905 | debug("Freeing device node: %d\n", dev_index); |
Milind Choudhary | 359439d | 2012-12-12 17:55:28 -0800 | [diff] [blame] | 906 | memset(&usb_dev[dev_index], 0, sizeof(struct usb_device)); |
| 907 | usb_dev[dev_index].devnum = -1; |
| 908 | } |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 909 | |
| 910 | /* |
Vivek Gautam | 5853e13 | 2013-09-14 14:02:45 +0530 | [diff] [blame] | 911 | * XHCI issues Enable Slot command and thereafter |
| 912 | * allocates device contexts. Provide a weak alias |
| 913 | * function for the purpose, so that XHCI overrides it |
| 914 | * and EHCI/OHCI just work out of the box. |
| 915 | */ |
| 916 | __weak int usb_alloc_device(struct usb_device *udev) |
| 917 | { |
| 918 | return 0; |
| 919 | } |
Sven Schwermer | fd09c20 | 2018-11-21 08:43:56 +0100 | [diff] [blame] | 920 | #endif /* !CONFIG_IS_ENABLED(DM_USB) */ |
Simon Glass | 862e75c | 2015-03-25 12:22:04 -0600 | [diff] [blame] | 921 | |
Hans de Goede | 682c9f8 | 2015-06-17 21:33:47 +0200 | [diff] [blame] | 922 | static int usb_hub_port_reset(struct usb_device *dev, struct usb_device *hub) |
Simon Glass | 862e75c | 2015-03-25 12:22:04 -0600 | [diff] [blame] | 923 | { |
Stefan Roese | 3ed9eb9 | 2016-03-15 13:59:14 +0100 | [diff] [blame] | 924 | if (!hub) |
Hans de Goede | 8802f56 | 2015-06-17 21:33:48 +0200 | [diff] [blame] | 925 | usb_reset_root_port(dev); |
Simon Glass | 862e75c | 2015-03-25 12:22:04 -0600 | [diff] [blame] | 926 | |
| 927 | return 0; |
| 928 | } |
| 929 | |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 930 | static int get_descriptor_len(struct usb_device *dev, int len, int expect_len) |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 931 | { |
Simon Glass | 128fcac | 2015-03-25 12:22:05 -0600 | [diff] [blame] | 932 | __maybe_unused struct usb_device_descriptor *desc; |
Puneet Saxena | f576613 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 933 | ALLOC_CACHE_ALIGN_BUFFER(unsigned char, tmpbuf, USB_BUFSIZ); |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 934 | int err; |
| 935 | |
| 936 | desc = (struct usb_device_descriptor *)tmpbuf; |
| 937 | |
| 938 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, len); |
| 939 | if (err < expect_len) { |
| 940 | if (err < 0) { |
| 941 | printf("unable to get device descriptor (error=%d)\n", |
| 942 | err); |
| 943 | return err; |
| 944 | } else { |
| 945 | printf("USB device descriptor short read (expected %i, got %i)\n", |
| 946 | expect_len, err); |
| 947 | return -EIO; |
| 948 | } |
| 949 | } |
| 950 | memcpy(&dev->descriptor, tmpbuf, sizeof(dev->descriptor)); |
| 951 | |
| 952 | return 0; |
| 953 | } |
| 954 | |
| 955 | static int usb_setup_descriptor(struct usb_device *dev, bool do_read) |
| 956 | { |
Vivek Gautam | 5853e13 | 2013-09-14 14:02:45 +0530 | [diff] [blame] | 957 | /* |
Simon Glass | 53d8aa0 | 2015-03-25 12:22:03 -0600 | [diff] [blame] | 958 | * This is a Windows scheme of initialization sequence, with double |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 959 | * reset of the device (Linux uses the same sequence) |
Remy Bohmer | c9e8436 | 2008-09-16 14:55:44 +0200 | [diff] [blame] | 960 | * Some equipment is said to work only with such init sequence; this |
| 961 | * patch is based on the work by Alan Stern: |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 962 | * http://sourceforge.net/mailarchive/forum.php? |
| 963 | * thread_id=5729457&forum_id=5398 |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 964 | */ |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 965 | |
Simon Glass | 53d8aa0 | 2015-03-25 12:22:03 -0600 | [diff] [blame] | 966 | /* |
| 967 | * send 64-byte GET-DEVICE-DESCRIPTOR request. Since the descriptor is |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 968 | * only 18 bytes long, this will terminate with a short packet. But if |
| 969 | * the maxpacket size is 8 or 16 the device may be waiting to transmit |
Hans de Goede | 2b338ef | 2015-05-05 23:56:04 +0200 | [diff] [blame] | 970 | * some more, or keeps on retransmitting the 8 byte header. |
| 971 | */ |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 972 | |
Hans de Goede | 2b338ef | 2015-05-05 23:56:04 +0200 | [diff] [blame] | 973 | if (dev->speed == USB_SPEED_LOW) { |
| 974 | dev->descriptor.bMaxPacketSize0 = 8; |
| 975 | dev->maxpacketsize = PACKET_SIZE_8; |
| 976 | } else { |
| 977 | dev->descriptor.bMaxPacketSize0 = 64; |
| 978 | dev->maxpacketsize = PACKET_SIZE_64; |
| 979 | } |
| 980 | dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0; |
| 981 | dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0; |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 982 | |
Bin Meng | c008faa | 2017-09-18 06:40:42 -0700 | [diff] [blame] | 983 | if (do_read && dev->speed == USB_SPEED_FULL) { |
Simon Glass | 128fcac | 2015-03-25 12:22:05 -0600 | [diff] [blame] | 984 | int err; |
Simon Glass | 862e75c | 2015-03-25 12:22:04 -0600 | [diff] [blame] | 985 | |
Simon Glass | 128fcac | 2015-03-25 12:22:05 -0600 | [diff] [blame] | 986 | /* |
Bin Meng | c008faa | 2017-09-18 06:40:42 -0700 | [diff] [blame] | 987 | * Validate we've received only at least 8 bytes, not that |
| 988 | * we've received the entire descriptor. The reasoning is: |
| 989 | * - The code only uses fields in the first 8 bytes, so |
| 990 | * that's all we need to have fetched at this stage. |
| 991 | * - The smallest maxpacket size is 8 bytes. Before we know |
| 992 | * the actual maxpacket the device uses, the USB controller |
| 993 | * may only accept a single packet. Consequently we are only |
| 994 | * guaranteed to receive 1 packet (at least 8 bytes) even in |
| 995 | * a non-error case. |
Simon Glass | 128fcac | 2015-03-25 12:22:05 -0600 | [diff] [blame] | 996 | * |
Bin Meng | c008faa | 2017-09-18 06:40:42 -0700 | [diff] [blame] | 997 | * At least the DWC2 controller needs to be programmed with |
| 998 | * the number of packets in addition to the number of bytes. |
| 999 | * A request for 64 bytes of data with the maxpacket guessed |
| 1000 | * as 64 (above) yields a request for 1 packet. |
Simon Glass | 128fcac | 2015-03-25 12:22:05 -0600 | [diff] [blame] | 1001 | */ |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1002 | err = get_descriptor_len(dev, 64, 8); |
| 1003 | if (err) |
| 1004 | return err; |
Wolfgang Denk | 9c998aa | 2005-07-21 11:57:57 +0200 | [diff] [blame] | 1005 | } |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 1006 | |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 1007 | dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1008 | dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0; |
| 1009 | switch (dev->descriptor.bMaxPacketSize0) { |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 1010 | case 8: |
| 1011 | dev->maxpacketsize = PACKET_SIZE_8; |
| 1012 | break; |
| 1013 | case 16: |
| 1014 | dev->maxpacketsize = PACKET_SIZE_16; |
| 1015 | break; |
| 1016 | case 32: |
| 1017 | dev->maxpacketsize = PACKET_SIZE_32; |
| 1018 | break; |
| 1019 | case 64: |
| 1020 | dev->maxpacketsize = PACKET_SIZE_64; |
| 1021 | break; |
Paul Kocialkowski | 04ee6ee | 2015-04-04 15:12:29 +0200 | [diff] [blame] | 1022 | default: |
Bin Meng | c008faa | 2017-09-18 06:40:42 -0700 | [diff] [blame] | 1023 | printf("%s: invalid max packet size\n", __func__); |
Paul Kocialkowski | 04ee6ee | 2015-04-04 15:12:29 +0200 | [diff] [blame] | 1024 | return -EIO; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1025 | } |
Simon Glass | 128fcac | 2015-03-25 12:22:05 -0600 | [diff] [blame] | 1026 | |
| 1027 | return 0; |
| 1028 | } |
| 1029 | |
Simon Glass | 91398f9 | 2015-03-25 12:22:06 -0600 | [diff] [blame] | 1030 | static int usb_prepare_device(struct usb_device *dev, int addr, bool do_read, |
Hans de Goede | 9eb72dd | 2015-06-17 21:33:46 +0200 | [diff] [blame] | 1031 | struct usb_device *parent) |
Simon Glass | 91398f9 | 2015-03-25 12:22:06 -0600 | [diff] [blame] | 1032 | { |
| 1033 | int err; |
| 1034 | |
| 1035 | /* |
| 1036 | * Allocate usb 3.0 device context. |
| 1037 | * USB 3.0 (xHCI) protocol tries to allocate device slot |
| 1038 | * and related data structures first. This call does that. |
| 1039 | * Refer to sec 4.3.2 in xHCI spec rev1.0 |
| 1040 | */ |
| 1041 | err = usb_alloc_device(dev); |
| 1042 | if (err) { |
| 1043 | printf("Cannot allocate device context to get SLOT_ID\n"); |
| 1044 | return err; |
| 1045 | } |
| 1046 | err = usb_setup_descriptor(dev, do_read); |
| 1047 | if (err) |
| 1048 | return err; |
Hans de Goede | 682c9f8 | 2015-06-17 21:33:47 +0200 | [diff] [blame] | 1049 | err = usb_hub_port_reset(dev, parent); |
Simon Glass | 91398f9 | 2015-03-25 12:22:06 -0600 | [diff] [blame] | 1050 | if (err) |
| 1051 | return err; |
| 1052 | |
| 1053 | dev->devnum = addr; |
| 1054 | |
| 1055 | err = usb_set_address(dev); /* set address */ |
| 1056 | |
| 1057 | if (err < 0) { |
| 1058 | printf("\n USB device not accepting new address " \ |
| 1059 | "(error=%lX)\n", dev->status); |
| 1060 | return err; |
| 1061 | } |
| 1062 | |
| 1063 | mdelay(10); /* Let the SET_ADDRESS settle */ |
| 1064 | |
Bin Meng | 932bb66 | 2017-09-18 06:40:43 -0700 | [diff] [blame] | 1065 | /* |
| 1066 | * If we haven't read device descriptor before, read it here |
| 1067 | * after device is assigned an address. This is only applicable |
| 1068 | * to xHCI so far. |
| 1069 | */ |
| 1070 | if (!do_read) { |
| 1071 | err = usb_setup_descriptor(dev, true); |
| 1072 | if (err) |
| 1073 | return err; |
| 1074 | } |
| 1075 | |
Simon Glass | 91398f9 | 2015-03-25 12:22:06 -0600 | [diff] [blame] | 1076 | return 0; |
| 1077 | } |
| 1078 | |
Simon Glass | 95fbfe4 | 2015-03-25 12:22:08 -0600 | [diff] [blame] | 1079 | int usb_select_config(struct usb_device *dev) |
Simon Glass | 128fcac | 2015-03-25 12:22:05 -0600 | [diff] [blame] | 1080 | { |
Marek Vasut | 2f1b430 | 2016-04-27 01:55:10 +0200 | [diff] [blame] | 1081 | unsigned char *tmpbuf = NULL; |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1082 | int err; |
Simon Glass | 128fcac | 2015-03-25 12:22:05 -0600 | [diff] [blame] | 1083 | |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1084 | err = get_descriptor_len(dev, USB_DT_DEVICE_SIZE, USB_DT_DEVICE_SIZE); |
| 1085 | if (err) |
| 1086 | return err; |
Simon Glass | 128fcac | 2015-03-25 12:22:05 -0600 | [diff] [blame] | 1087 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1088 | /* correct le values */ |
Christian Eggers | c918261 | 2008-05-21 22:12:00 +0200 | [diff] [blame] | 1089 | le16_to_cpus(&dev->descriptor.bcdUSB); |
| 1090 | le16_to_cpus(&dev->descriptor.idVendor); |
| 1091 | le16_to_cpus(&dev->descriptor.idProduct); |
| 1092 | le16_to_cpus(&dev->descriptor.bcdDevice); |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1093 | |
Marek Vasut | ef71290 | 2016-04-27 03:32:56 +0200 | [diff] [blame] | 1094 | /* |
| 1095 | * Kingston DT Ultimate 32GB USB 3.0 seems to be extremely sensitive |
| 1096 | * about this first Get Descriptor request. If there are any other |
| 1097 | * requests in the first microframe, the stick crashes. Wait about |
| 1098 | * one microframe duration here (1mS for USB 1.x , 125uS for USB 2.0). |
| 1099 | */ |
| 1100 | mdelay(1); |
| 1101 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1102 | /* only support for one config for now */ |
Stefan BrĂ¼ns | c75f57f | 2015-12-22 01:18:13 +0100 | [diff] [blame] | 1103 | err = usb_get_configuration_len(dev, 0); |
| 1104 | if (err >= 0) { |
| 1105 | tmpbuf = (unsigned char *)malloc_cache_aligned(err); |
| 1106 | if (!tmpbuf) |
| 1107 | err = -ENOMEM; |
| 1108 | else |
| 1109 | err = usb_get_configuration_no(dev, 0, tmpbuf, err); |
| 1110 | } |
Vincent Palatin | 8b8d779 | 2012-07-24 07:12:02 +0000 | [diff] [blame] | 1111 | if (err < 0) { |
| 1112 | printf("usb_new_device: Cannot read configuration, " \ |
| 1113 | "skipping device %04x:%04x\n", |
| 1114 | dev->descriptor.idVendor, dev->descriptor.idProduct); |
Stefan BrĂ¼ns | c75f57f | 2015-12-22 01:18:13 +0100 | [diff] [blame] | 1115 | free(tmpbuf); |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1116 | return err; |
Vincent Palatin | 8b8d779 | 2012-07-24 07:12:02 +0000 | [diff] [blame] | 1117 | } |
Puneet Saxena | f576613 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 1118 | usb_parse_config(dev, tmpbuf, 0); |
Stefan BrĂ¼ns | c75f57f | 2015-12-22 01:18:13 +0100 | [diff] [blame] | 1119 | free(tmpbuf); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1120 | usb_set_maxpacket(dev); |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1121 | /* |
| 1122 | * we set the default configuration here |
| 1123 | * This seems premature. If the driver wants a different configuration |
| 1124 | * it will need to select itself. |
| 1125 | */ |
| 1126 | err = usb_set_configuration(dev, dev->config.desc.bConfigurationValue); |
| 1127 | if (err < 0) { |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1128 | printf("failed to set default configuration " \ |
| 1129 | "len %d, status %lX\n", dev->act_len, dev->status); |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1130 | return err; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1131 | } |
Marek Vasut | f647bf0 | 2016-04-27 03:08:12 +0200 | [diff] [blame] | 1132 | |
| 1133 | /* |
| 1134 | * Wait until the Set Configuration request gets processed by the |
| 1135 | * device. This is required by at least SanDisk Cruzer Pop USB 2.0 |
| 1136 | * and Kingston DT Ultimate 32GB USB 3.0 on DWC2 OTG controller. |
| 1137 | */ |
| 1138 | mdelay(10); |
| 1139 | |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 1140 | debug("new device strings: Mfr=%d, Product=%d, SerialNumber=%d\n", |
| 1141 | dev->descriptor.iManufacturer, dev->descriptor.iProduct, |
| 1142 | dev->descriptor.iSerialNumber); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1143 | memset(dev->mf, 0, sizeof(dev->mf)); |
| 1144 | memset(dev->prod, 0, sizeof(dev->prod)); |
| 1145 | memset(dev->serial, 0, sizeof(dev->serial)); |
| 1146 | if (dev->descriptor.iManufacturer) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1147 | usb_string(dev, dev->descriptor.iManufacturer, |
| 1148 | dev->mf, sizeof(dev->mf)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1149 | if (dev->descriptor.iProduct) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1150 | usb_string(dev, dev->descriptor.iProduct, |
| 1151 | dev->prod, sizeof(dev->prod)); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1152 | if (dev->descriptor.iSerialNumber) |
Remy Bohmer | 6f5794a | 2008-09-16 14:55:43 +0200 | [diff] [blame] | 1153 | usb_string(dev, dev->descriptor.iSerialNumber, |
| 1154 | dev->serial, sizeof(dev->serial)); |
Vivek Gautam | ceb4972 | 2013-04-12 16:34:33 +0530 | [diff] [blame] | 1155 | debug("Manufacturer %s\n", dev->mf); |
| 1156 | debug("Product %s\n", dev->prod); |
| 1157 | debug("SerialNumber %s\n", dev->serial); |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1158 | |
| 1159 | return 0; |
| 1160 | } |
| 1161 | |
Simon Glass | 95fbfe4 | 2015-03-25 12:22:08 -0600 | [diff] [blame] | 1162 | int usb_setup_device(struct usb_device *dev, bool do_read, |
Hans de Goede | 9eb72dd | 2015-06-17 21:33:46 +0200 | [diff] [blame] | 1163 | struct usb_device *parent) |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1164 | { |
| 1165 | int addr; |
| 1166 | int ret; |
| 1167 | |
| 1168 | /* We still haven't set the Address yet */ |
| 1169 | addr = dev->devnum; |
| 1170 | dev->devnum = 0; |
| 1171 | |
Hans de Goede | 9eb72dd | 2015-06-17 21:33:46 +0200 | [diff] [blame] | 1172 | ret = usb_prepare_device(dev, addr, do_read, parent); |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1173 | if (ret) |
| 1174 | return ret; |
| 1175 | ret = usb_select_config(dev); |
| 1176 | |
| 1177 | return ret; |
| 1178 | } |
| 1179 | |
Sven Schwermer | fd09c20 | 2018-11-21 08:43:56 +0100 | [diff] [blame] | 1180 | #if !CONFIG_IS_ENABLED(DM_USB) |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1181 | /* |
| 1182 | * By the time we get here, the device has gotten a new device ID |
| 1183 | * and is in the default state. We need to identify the thing and |
| 1184 | * get the ball rolling.. |
| 1185 | * |
| 1186 | * Returns 0 for success, != 0 for error. |
| 1187 | */ |
| 1188 | int usb_new_device(struct usb_device *dev) |
| 1189 | { |
| 1190 | bool do_read = true; |
| 1191 | int err; |
| 1192 | |
| 1193 | /* |
| 1194 | * XHCI needs to issue a Address device command to setup |
| 1195 | * proper device context structures, before it can interact |
| 1196 | * with the device. So a get_descriptor will fail before any |
| 1197 | * of that is done for XHCI unlike EHCI. |
| 1198 | */ |
Masahiro Yamada | 0a8cc1a | 2016-06-04 07:35:03 +0900 | [diff] [blame] | 1199 | #ifdef CONFIG_USB_XHCI_HCD |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1200 | do_read = false; |
| 1201 | #endif |
Hans de Goede | 9eb72dd | 2015-06-17 21:33:46 +0200 | [diff] [blame] | 1202 | err = usb_setup_device(dev, do_read, dev->parent); |
Simon Glass | 0ed2790 | 2015-03-25 12:22:07 -0600 | [diff] [blame] | 1203 | if (err) |
| 1204 | return err; |
| 1205 | |
| 1206 | /* Now probe if the device is a hub */ |
| 1207 | err = usb_hub_probe(dev, 0); |
| 1208 | if (err < 0) |
| 1209 | return err; |
| 1210 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1211 | return 0; |
| 1212 | } |
Simon Glass | 95fbfe4 | 2015-03-25 12:22:08 -0600 | [diff] [blame] | 1213 | #endif |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1214 | |
Mateusz Zalega | 16297cf | 2013-10-04 19:22:26 +0200 | [diff] [blame] | 1215 | __weak |
Troy Kisky | bba6791 | 2013-10-10 15:27:55 -0700 | [diff] [blame] | 1216 | int board_usb_init(int index, enum usb_init_type init) |
Mateusz Zalega | 16297cf | 2013-10-04 19:22:26 +0200 | [diff] [blame] | 1217 | { |
| 1218 | return 0; |
| 1219 | } |
Kishon Vijay Abraham I | db378d7 | 2015-02-23 18:40:18 +0530 | [diff] [blame] | 1220 | |
| 1221 | __weak |
| 1222 | int board_usb_cleanup(int index, enum usb_init_type init) |
| 1223 | { |
| 1224 | return 0; |
| 1225 | } |
Simon Glass | 95fbfe4 | 2015-03-25 12:22:08 -0600 | [diff] [blame] | 1226 | |
| 1227 | bool usb_device_has_child_on_port(struct usb_device *parent, int port) |
| 1228 | { |
Sven Schwermer | fd09c20 | 2018-11-21 08:43:56 +0100 | [diff] [blame] | 1229 | #if CONFIG_IS_ENABLED(DM_USB) |
Simon Glass | 95fbfe4 | 2015-03-25 12:22:08 -0600 | [diff] [blame] | 1230 | return false; |
| 1231 | #else |
| 1232 | return parent->children[port] != NULL; |
| 1233 | #endif |
| 1234 | } |
| 1235 | |
Sven Schwermer | fd09c20 | 2018-11-21 08:43:56 +0100 | [diff] [blame] | 1236 | #if CONFIG_IS_ENABLED(DM_USB) |
Stefan BrĂ¼ns | faa7db2 | 2015-12-22 01:21:03 +0100 | [diff] [blame] | 1237 | void usb_find_usb2_hub_address_port(struct usb_device *udev, |
| 1238 | uint8_t *hub_address, uint8_t *hub_port) |
| 1239 | { |
| 1240 | struct udevice *parent; |
| 1241 | struct usb_device *uparent, *ttdev; |
| 1242 | |
| 1243 | /* |
| 1244 | * When called from usb-uclass.c: usb_scan_device() udev->dev points |
| 1245 | * to the parent udevice, not the actual udevice belonging to the |
| 1246 | * udev as the device is not instantiated yet. So when searching |
| 1247 | * for the first usb-2 parent start with udev->dev not |
| 1248 | * udev->dev->parent . |
| 1249 | */ |
| 1250 | ttdev = udev; |
| 1251 | parent = udev->dev; |
| 1252 | uparent = dev_get_parent_priv(parent); |
| 1253 | |
| 1254 | while (uparent->speed != USB_SPEED_HIGH) { |
| 1255 | struct udevice *dev = parent; |
| 1256 | |
| 1257 | if (device_get_uclass_id(dev->parent) != UCLASS_USB_HUB) { |
| 1258 | printf("Error: Cannot find high speed parent of usb-1 device\n"); |
| 1259 | *hub_address = 0; |
| 1260 | *hub_port = 0; |
| 1261 | return; |
| 1262 | } |
| 1263 | |
| 1264 | ttdev = dev_get_parent_priv(dev); |
| 1265 | parent = dev->parent; |
| 1266 | uparent = dev_get_parent_priv(parent); |
| 1267 | } |
| 1268 | *hub_address = uparent->devnum; |
| 1269 | *hub_port = ttdev->portnr; |
| 1270 | } |
| 1271 | #else |
| 1272 | void usb_find_usb2_hub_address_port(struct usb_device *udev, |
| 1273 | uint8_t *hub_address, uint8_t *hub_port) |
| 1274 | { |
| 1275 | /* Find out the nearest parent which is high speed */ |
| 1276 | while (udev->parent->parent != NULL) |
| 1277 | if (udev->parent->speed != USB_SPEED_HIGH) { |
| 1278 | udev = udev->parent; |
| 1279 | } else { |
| 1280 | *hub_address = udev->parent->devnum; |
| 1281 | *hub_port = udev->portnr; |
| 1282 | return; |
| 1283 | } |
| 1284 | |
| 1285 | printf("Error: Cannot find high speed parent of usb-1 device\n"); |
| 1286 | *hub_address = 0; |
| 1287 | *hub_port = 0; |
| 1288 | } |
| 1289 | #endif |
| 1290 | |
| 1291 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1292 | /* EOF */ |