+// SPDX-License-Identifier: GPL-2.0+
/*
* Most of this source has been derived from the Linux USB
* project:
*
* Adapted for U-Boot:
* (C) Copyright 2001 Denis Peter, MPL AG Switzerland
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
/*
#include <common.h>
#include <command.h>
#include <dm.h>
+#include <malloc.h>
+#include <memalign.h>
#include <asm/processor.h>
#include <linux/compiler.h>
#include <linux/ctype.h>
#include <asm/unaligned.h>
#include <errno.h>
#include <usb.h>
-#ifdef CONFIG_4xx
-#include <asm/4xx_pci.h>
-#endif
#define USB_BUFSIZ 512
static int asynch_allowed;
char usb_started; /* flag for the started/stopped USB status */
-#ifndef CONFIG_DM_USB
+#if !CONFIG_IS_ENABLED(DM_USB)
static struct usb_device usb_dev[USB_MAX_DEVICE];
static int dev_index;
return change;
}
+/* Lock or unlock async schedule on the controller */
+__weak int usb_lock_async(struct usb_device *dev, int lock)
+{
+ return 0;
+}
+
/*
* disables the asynch behaviour of the control message. This is used for data
* transfers that uses the exclusiv access to the control and bulk messages.
asynch_allowed = !disable;
return old_value;
}
-#endif /* !CONFIG_DM_USB */
+#endif /* !CONFIG_IS_ENABLED(DM_USB) */
/*-------------------------------------------------------------------
*/
/*
- * submits an Interrupt Message
+ * submits an Interrupt Message. Some drivers may implement non-blocking
+ * polling: when non-block is true and the device is not responding return
+ * -EAGAIN instead of waiting for device to respond.
*/
-int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe,
- void *buffer, int transfer_len, int interval)
+int usb_int_msg(struct usb_device *dev, unsigned long pipe,
+ void *buffer, int transfer_len, int interval, bool nonblock)
{
- return submit_int_msg(dev, pipe, buffer, transfer_len, interval);
+ return submit_int_msg(dev, pipe, buffer, transfer_len, interval,
+ nonblock);
}
/*
* clear keyboards LEDs). For data transfers, (storage transfers) we don't
* allow control messages with 0 timeout, by previousely resetting the flag
* asynch_allowed (usb_disable_asynch(1)).
- * returns the transfered length if OK or -1 if error. The transfered length
+ * returns the transferred length if OK or -1 if error. The transferred length
* and the current status are stored in the dev->act_len and dev->status.
*/
int usb_control_msg(struct usb_device *dev, unsigned int pipe,
}
break;
case USB_DT_ENDPOINT:
- if (head->bLength != USB_DT_ENDPOINT_SIZE) {
+ if (head->bLength != USB_DT_ENDPOINT_SIZE &&
+ head->bLength != USB_DT_ENDPOINT_AUDIO_SIZE) {
printf("ERROR: Invalid USB EP length (%d)\n",
head->bLength);
break;
}
- if (index + USB_DT_ENDPOINT_SIZE >
+ if (index + head->bLength >
dev->config.desc.wTotalLength) {
puts("USB EP descriptor overflowed buffer!\n");
break;
}
epno = dev->config.if_desc[ifno].no_of_ep;
if_desc = &dev->config.if_desc[ifno];
- if (epno > USB_MAXENDPOINTS) {
+ if (epno >= USB_MAXENDPOINTS) {
printf("Interface %d has too many endpoints!\n",
if_desc->desc.bInterfaceNumber);
return -EINVAL;
static int usb_get_descriptor(struct usb_device *dev, unsigned char type,
unsigned char index, void *buf, int size)
{
- int res;
- res = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
- USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
- (type << 8) + index, 0,
- buf, size, USB_CNTL_TIMEOUT);
- return res;
+ return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+ USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
+ (type << 8) + index, 0, buf, size,
+ USB_CNTL_TIMEOUT);
}
/**********************************************************************
- * gets configuration cfgno and store it in the buffer
+ * gets len of configuration cfgno
*/
-int usb_get_configuration_no(struct usb_device *dev,
- unsigned char *buffer, int cfgno)
+int usb_get_configuration_len(struct usb_device *dev, int cfgno)
{
int result;
- unsigned int length;
+ ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, 9);
struct usb_config_descriptor *config;
config = (struct usb_config_descriptor *)&buffer[0];
"(expected %i, got %i)\n", 9, result);
return -EIO;
}
- length = le16_to_cpu(config->wTotalLength);
+ return le16_to_cpu(config->wTotalLength);
+}
- if (length > USB_BUFSIZ) {
- printf("%s: failed to get descriptor - too long: %d\n",
- __func__, length);
- return -EIO;
- }
+/**********************************************************************
+ * gets configuration cfgno and store it in the buffer
+ */
+int usb_get_configuration_no(struct usb_device *dev, int cfgno,
+ unsigned char *buffer, int length)
+{
+ int result;
+ struct usb_config_descriptor *config;
+ config = (struct usb_config_descriptor *)&buffer[0];
result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, length);
- debug("get_conf_no %d Result %d, wLength %d\n", cfgno, result, length);
- config->wTotalLength = length; /* validated, with CPU byte order */
+ debug("get_conf_no %d Result %d, wLength %d\n", cfgno, result,
+ le16_to_cpu(config->wTotalLength));
+ config->wTotalLength = result; /* validated, with CPU byte order */
return result;
}
*/
static int usb_set_address(struct usb_device *dev)
{
- int res;
-
debug("set address %d\n", dev->devnum);
- res = usb_control_msg(dev, usb_snddefctrl(dev),
- USB_REQ_SET_ADDRESS, 0,
- (dev->devnum), 0,
- NULL, 0, USB_CNTL_TIMEOUT);
- return res;
+
+ return usb_control_msg(dev, usb_snddefctrl(dev), USB_REQ_SET_ADDRESS,
+ 0, (dev->devnum), 0, NULL, 0, USB_CNTL_TIMEOUT);
}
/********************************************************************
* the USB device are static allocated [USB_MAX_DEVICE].
*/
-#ifndef CONFIG_DM_USB
+#if !CONFIG_IS_ENABLED(DM_USB)
/* returns a pointer to the device with the index [index].
* if the device is not assigned (dev->devnum==-1) returns NULL
{
return 0;
}
-#endif /* !CONFIG_DM_USB */
+#endif /* !CONFIG_IS_ENABLED(DM_USB) */
-#ifndef CONFIG_DM_USB
-int usb_legacy_port_reset(struct usb_device *hub, int portnr)
+static int usb_hub_port_reset(struct usb_device *dev, struct usb_device *hub)
{
- if (hub) {
- unsigned short portstatus;
- int err;
-
- /* reset the port for the second time */
- err = legacy_hub_port_reset(hub, portnr - 1, &portstatus);
- if (err < 0) {
- printf("\n Couldn't reset port %i\n", portnr);
- return err;
- }
- } else {
- usb_reset_root_port();
- }
+ if (!hub)
+ usb_reset_root_port(dev);
return 0;
}
-#endif
static int get_descriptor_len(struct usb_device *dev, int len, int expect_len)
{
static int usb_setup_descriptor(struct usb_device *dev, bool do_read)
{
- __maybe_unused struct usb_device_descriptor *desc;
-
/*
* This is a Windows scheme of initialization sequence, with double
* reset of the device (Linux uses the same sequence)
dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0;
dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0;
- if (do_read) {
+ if (do_read && dev->speed == USB_SPEED_FULL) {
int err;
/*
- * Validate we've received only at least 8 bytes, not that we've
- * received the entire descriptor. The reasoning is:
- * - The code only uses fields in the first 8 bytes, so that's all we
- * need to have fetched at this stage.
- * - The smallest maxpacket size is 8 bytes. Before we know the actual
- * maxpacket the device uses, the USB controller may only accept a
- * single packet. Consequently we are only guaranteed to receive 1
- * packet (at least 8 bytes) even in a non-error case.
+ * Validate we've received only at least 8 bytes, not that
+ * we've received the entire descriptor. The reasoning is:
+ * - The code only uses fields in the first 8 bytes, so
+ * that's all we need to have fetched at this stage.
+ * - The smallest maxpacket size is 8 bytes. Before we know
+ * the actual maxpacket the device uses, the USB controller
+ * may only accept a single packet. Consequently we are only
+ * guaranteed to receive 1 packet (at least 8 bytes) even in
+ * a non-error case.
*
- * At least the DWC2 controller needs to be programmed with the number
- * of packets in addition to the number of bytes. A request for 64
- * bytes of data with the maxpacket guessed as 64 (above) yields a
- * request for 1 packet.
+ * At least the DWC2 controller needs to be programmed with
+ * the number of packets in addition to the number of bytes.
+ * A request for 64 bytes of data with the maxpacket guessed
+ * as 64 (above) yields a request for 1 packet.
*/
err = get_descriptor_len(dev, 64, 8);
if (err)
dev->maxpacketsize = PACKET_SIZE_64;
break;
default:
- printf("usb_new_device: invalid max packet size\n");
+ printf("%s: invalid max packet size\n", __func__);
return -EIO;
}
}
static int usb_prepare_device(struct usb_device *dev, int addr, bool do_read,
- struct usb_device *parent, int portnr)
+ struct usb_device *parent)
{
int err;
err = usb_setup_descriptor(dev, do_read);
if (err)
return err;
- err = usb_legacy_port_reset(parent, portnr);
+ err = usb_hub_port_reset(dev, parent);
if (err)
return err;
mdelay(10); /* Let the SET_ADDRESS settle */
+ /*
+ * If we haven't read device descriptor before, read it here
+ * after device is assigned an address. This is only applicable
+ * to xHCI so far.
+ */
+ if (!do_read) {
+ err = usb_setup_descriptor(dev, true);
+ if (err)
+ return err;
+ }
+
return 0;
}
int usb_select_config(struct usb_device *dev)
{
- ALLOC_CACHE_ALIGN_BUFFER(unsigned char, tmpbuf, USB_BUFSIZ);
+ unsigned char *tmpbuf = NULL;
int err;
err = get_descriptor_len(dev, USB_DT_DEVICE_SIZE, USB_DT_DEVICE_SIZE);
le16_to_cpus(&dev->descriptor.idProduct);
le16_to_cpus(&dev->descriptor.bcdDevice);
+ /*
+ * Kingston DT Ultimate 32GB USB 3.0 seems to be extremely sensitive
+ * about this first Get Descriptor request. If there are any other
+ * requests in the first microframe, the stick crashes. Wait about
+ * one microframe duration here (1mS for USB 1.x , 125uS for USB 2.0).
+ */
+ mdelay(1);
+
/* only support for one config for now */
- err = usb_get_configuration_no(dev, tmpbuf, 0);
+ err = usb_get_configuration_len(dev, 0);
+ if (err >= 0) {
+ tmpbuf = (unsigned char *)malloc_cache_aligned(err);
+ if (!tmpbuf)
+ err = -ENOMEM;
+ else
+ err = usb_get_configuration_no(dev, 0, tmpbuf, err);
+ }
if (err < 0) {
printf("usb_new_device: Cannot read configuration, " \
"skipping device %04x:%04x\n",
dev->descriptor.idVendor, dev->descriptor.idProduct);
+ free(tmpbuf);
return err;
}
usb_parse_config(dev, tmpbuf, 0);
+ free(tmpbuf);
usb_set_maxpacket(dev);
/*
* we set the default configuration here
"len %d, status %lX\n", dev->act_len, dev->status);
return err;
}
+
+ /*
+ * Wait until the Set Configuration request gets processed by the
+ * device. This is required by at least SanDisk Cruzer Pop USB 2.0
+ * and Kingston DT Ultimate 32GB USB 3.0 on DWC2 OTG controller.
+ */
+ mdelay(10);
+
debug("new device strings: Mfr=%d, Product=%d, SerialNumber=%d\n",
dev->descriptor.iManufacturer, dev->descriptor.iProduct,
dev->descriptor.iSerialNumber);
}
int usb_setup_device(struct usb_device *dev, bool do_read,
- struct usb_device *parent, int portnr)
+ struct usb_device *parent)
{
int addr;
int ret;
addr = dev->devnum;
dev->devnum = 0;
- ret = usb_prepare_device(dev, addr, do_read, parent, portnr);
+ ret = usb_prepare_device(dev, addr, do_read, parent);
if (ret)
return ret;
ret = usb_select_config(dev);
return ret;
}
-#ifndef CONFIG_DM_USB
+#if !CONFIG_IS_ENABLED(DM_USB)
/*
* By the time we get here, the device has gotten a new device ID
* and is in the default state. We need to identify the thing and
* with the device. So a get_descriptor will fail before any
* of that is done for XHCI unlike EHCI.
*/
-#ifdef CONFIG_USB_XHCI
+#ifdef CONFIG_USB_XHCI_HCD
do_read = false;
#endif
- err = usb_setup_device(dev, do_read, dev->parent, dev->portnr);
+ err = usb_setup_device(dev, do_read, dev->parent);
if (err)
return err;
bool usb_device_has_child_on_port(struct usb_device *parent, int port)
{
-#ifdef CONFIG_DM_USB
+#if CONFIG_IS_ENABLED(DM_USB)
return false;
#else
return parent->children[port] != NULL;
#endif
}
+#if CONFIG_IS_ENABLED(DM_USB)
+void usb_find_usb2_hub_address_port(struct usb_device *udev,
+ uint8_t *hub_address, uint8_t *hub_port)
+{
+ struct udevice *parent;
+ struct usb_device *uparent, *ttdev;
+
+ /*
+ * When called from usb-uclass.c: usb_scan_device() udev->dev points
+ * to the parent udevice, not the actual udevice belonging to the
+ * udev as the device is not instantiated yet. So when searching
+ * for the first usb-2 parent start with udev->dev not
+ * udev->dev->parent .
+ */
+ ttdev = udev;
+ parent = udev->dev;
+ uparent = dev_get_parent_priv(parent);
+
+ while (uparent->speed != USB_SPEED_HIGH) {
+ struct udevice *dev = parent;
+
+ if (device_get_uclass_id(dev->parent) != UCLASS_USB_HUB) {
+ printf("Error: Cannot find high speed parent of usb-1 device\n");
+ *hub_address = 0;
+ *hub_port = 0;
+ return;
+ }
+
+ ttdev = dev_get_parent_priv(dev);
+ parent = dev->parent;
+ uparent = dev_get_parent_priv(parent);
+ }
+ *hub_address = uparent->devnum;
+ *hub_port = ttdev->portnr;
+}
+#else
+void usb_find_usb2_hub_address_port(struct usb_device *udev,
+ uint8_t *hub_address, uint8_t *hub_port)
+{
+ /* Find out the nearest parent which is high speed */
+ while (udev->parent->parent != NULL)
+ if (udev->parent->speed != USB_SPEED_HIGH) {
+ udev = udev->parent;
+ } else {
+ *hub_address = udev->parent->devnum;
+ *hub_port = udev->portnr;
+ return;
+ }
+
+ printf("Error: Cannot find high speed parent of usb-1 device\n");
+ *hub_address = 0;
+ *hub_port = 0;
+}
+#endif
+
+
/* EOF */
projects / oweals / u-boot.git / blobdiff