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