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path: root/drivers/usb/core/hcd.c
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Diffstat (limited to 'drivers/usb/core/hcd.c')
-rw-r--r--drivers/usb/core/hcd.c110
1 files changed, 86 insertions, 24 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 4d64e5c499e1..1c102d60cd9f 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -131,7 +131,7 @@ static inline int is_root_hub(struct usb_device *udev)
/* usb 3.0 root hub device descriptor */
static const u8 usb3_rh_dev_descriptor[18] = {
0x12, /* __u8 bLength; */
- 0x01, /* __u8 bDescriptorType; Device */
+ USB_DT_DEVICE, /* __u8 bDescriptorType; Device */
0x00, 0x03, /* __le16 bcdUSB; v3.0 */
0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
@@ -152,7 +152,7 @@ static const u8 usb3_rh_dev_descriptor[18] = {
/* usb 2.5 (wireless USB 1.0) root hub device descriptor */
static const u8 usb25_rh_dev_descriptor[18] = {
0x12, /* __u8 bLength; */
- 0x01, /* __u8 bDescriptorType; Device */
+ USB_DT_DEVICE, /* __u8 bDescriptorType; Device */
0x50, 0x02, /* __le16 bcdUSB; v2.5 */
0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
@@ -173,7 +173,7 @@ static const u8 usb25_rh_dev_descriptor[18] = {
/* usb 2.0 root hub device descriptor */
static const u8 usb2_rh_dev_descriptor[18] = {
0x12, /* __u8 bLength; */
- 0x01, /* __u8 bDescriptorType; Device */
+ USB_DT_DEVICE, /* __u8 bDescriptorType; Device */
0x00, 0x02, /* __le16 bcdUSB; v2.0 */
0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
@@ -196,7 +196,7 @@ static const u8 usb2_rh_dev_descriptor[18] = {
/* usb 1.1 root hub device descriptor */
static const u8 usb11_rh_dev_descriptor[18] = {
0x12, /* __u8 bLength; */
- 0x01, /* __u8 bDescriptorType; Device */
+ USB_DT_DEVICE, /* __u8 bDescriptorType; Device */
0x10, 0x01, /* __le16 bcdUSB; v1.1 */
0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
@@ -223,7 +223,7 @@ static const u8 fs_rh_config_descriptor[] = {
/* one configuration */
0x09, /* __u8 bLength; */
- 0x02, /* __u8 bDescriptorType; Configuration */
+ USB_DT_CONFIG, /* __u8 bDescriptorType; Configuration */
0x19, 0x00, /* __le16 wTotalLength; */
0x01, /* __u8 bNumInterfaces; (1) */
0x01, /* __u8 bConfigurationValue; */
@@ -248,7 +248,7 @@ static const u8 fs_rh_config_descriptor[] = {
/* one interface */
0x09, /* __u8 if_bLength; */
- 0x04, /* __u8 if_bDescriptorType; Interface */
+ USB_DT_INTERFACE, /* __u8 if_bDescriptorType; Interface */
0x00, /* __u8 if_bInterfaceNumber; */
0x00, /* __u8 if_bAlternateSetting; */
0x01, /* __u8 if_bNumEndpoints; */
@@ -259,7 +259,7 @@ static const u8 fs_rh_config_descriptor[] = {
/* one endpoint (status change endpoint) */
0x07, /* __u8 ep_bLength; */
- 0x05, /* __u8 ep_bDescriptorType; Endpoint */
+ USB_DT_ENDPOINT, /* __u8 ep_bDescriptorType; Endpoint */
0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* __u8 ep_bmAttributes; Interrupt */
0x02, 0x00, /* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */
@@ -270,7 +270,7 @@ static const u8 hs_rh_config_descriptor[] = {
/* one configuration */
0x09, /* __u8 bLength; */
- 0x02, /* __u8 bDescriptorType; Configuration */
+ USB_DT_CONFIG, /* __u8 bDescriptorType; Configuration */
0x19, 0x00, /* __le16 wTotalLength; */
0x01, /* __u8 bNumInterfaces; (1) */
0x01, /* __u8 bConfigurationValue; */
@@ -295,7 +295,7 @@ static const u8 hs_rh_config_descriptor[] = {
/* one interface */
0x09, /* __u8 if_bLength; */
- 0x04, /* __u8 if_bDescriptorType; Interface */
+ USB_DT_INTERFACE, /* __u8 if_bDescriptorType; Interface */
0x00, /* __u8 if_bInterfaceNumber; */
0x00, /* __u8 if_bAlternateSetting; */
0x01, /* __u8 if_bNumEndpoints; */
@@ -306,7 +306,7 @@ static const u8 hs_rh_config_descriptor[] = {
/* one endpoint (status change endpoint) */
0x07, /* __u8 ep_bLength; */
- 0x05, /* __u8 ep_bDescriptorType; Endpoint */
+ USB_DT_ENDPOINT, /* __u8 ep_bDescriptorType; Endpoint */
0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* __u8 ep_bmAttributes; Interrupt */
/* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8)
@@ -318,7 +318,7 @@ static const u8 hs_rh_config_descriptor[] = {
static const u8 ss_rh_config_descriptor[] = {
/* one configuration */
0x09, /* __u8 bLength; */
- 0x02, /* __u8 bDescriptorType; Configuration */
+ USB_DT_CONFIG, /* __u8 bDescriptorType; Configuration */
0x1f, 0x00, /* __le16 wTotalLength; */
0x01, /* __u8 bNumInterfaces; (1) */
0x01, /* __u8 bConfigurationValue; */
@@ -332,7 +332,7 @@ static const u8 ss_rh_config_descriptor[] = {
/* one interface */
0x09, /* __u8 if_bLength; */
- 0x04, /* __u8 if_bDescriptorType; Interface */
+ USB_DT_INTERFACE, /* __u8 if_bDescriptorType; Interface */
0x00, /* __u8 if_bInterfaceNumber; */
0x00, /* __u8 if_bAlternateSetting; */
0x01, /* __u8 if_bNumEndpoints; */
@@ -343,7 +343,7 @@ static const u8 ss_rh_config_descriptor[] = {
/* one endpoint (status change endpoint) */
0x07, /* __u8 ep_bLength; */
- 0x05, /* __u8 ep_bDescriptorType; Endpoint */
+ USB_DT_ENDPOINT, /* __u8 ep_bDescriptorType; Endpoint */
0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* __u8 ep_bmAttributes; Interrupt */
/* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8)
@@ -353,7 +353,8 @@ static const u8 ss_rh_config_descriptor[] = {
/* one SuperSpeed endpoint companion descriptor */
0x06, /* __u8 ss_bLength */
- 0x30, /* __u8 ss_bDescriptorType; SuperSpeed EP Companion */
+ USB_DT_SS_ENDPOINT_COMP, /* __u8 ss_bDescriptorType; SuperSpeed EP */
+ /* Companion */
0x00, /* __u8 ss_bMaxBurst; allows 1 TX between ACKs */
0x00, /* __u8 ss_bmAttributes; 1 packet per service interval */
0x02, 0x00 /* __le16 ss_wBytesPerInterval; 15 bits for max 15 ports */
@@ -555,6 +556,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
switch (wValue & 0xff00) {
case USB_DT_DEVICE << 8:
switch (hcd->speed) {
+ case HCD_USB31:
case HCD_USB3:
bufp = usb3_rh_dev_descriptor;
break;
@@ -576,6 +578,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
break;
case USB_DT_CONFIG << 8:
switch (hcd->speed) {
+ case HCD_USB31:
case HCD_USB3:
bufp = ss_rh_config_descriptor;
len = sizeof ss_rh_config_descriptor;
@@ -854,10 +857,10 @@ static ssize_t authorized_default_show(struct device *dev,
{
struct usb_device *rh_usb_dev = to_usb_device(dev);
struct usb_bus *usb_bus = rh_usb_dev->bus;
- struct usb_hcd *usb_hcd;
+ struct usb_hcd *hcd;
- usb_hcd = bus_to_hcd(usb_bus);
- return snprintf(buf, PAGE_SIZE, "%u\n", usb_hcd->authorized_default);
+ hcd = bus_to_hcd(usb_bus);
+ return snprintf(buf, PAGE_SIZE, "%u\n", !!HCD_DEV_AUTHORIZED(hcd));
}
static ssize_t authorized_default_store(struct device *dev,
@@ -868,12 +871,16 @@ static ssize_t authorized_default_store(struct device *dev,
unsigned val;
struct usb_device *rh_usb_dev = to_usb_device(dev);
struct usb_bus *usb_bus = rh_usb_dev->bus;
- struct usb_hcd *usb_hcd;
+ struct usb_hcd *hcd;
- usb_hcd = bus_to_hcd(usb_bus);
+ hcd = bus_to_hcd(usb_bus);
result = sscanf(buf, "%u\n", &val);
if (result == 1) {
- usb_hcd->authorized_default = val ? 1 : 0;
+ if (val)
+ set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+ else
+ clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+
result = size;
} else {
result = -EINVAL;
@@ -882,9 +889,53 @@ static ssize_t authorized_default_store(struct device *dev,
}
static DEVICE_ATTR_RW(authorized_default);
+/*
+ * interface_authorized_default_show - show default authorization status
+ * for USB interfaces
+ *
+ * note: interface_authorized_default is the default value
+ * for initializing the authorized attribute of interfaces
+ */
+static ssize_t interface_authorized_default_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct usb_device *usb_dev = to_usb_device(dev);
+ struct usb_hcd *hcd = bus_to_hcd(usb_dev->bus);
+
+ return sprintf(buf, "%u\n", !!HCD_INTF_AUTHORIZED(hcd));
+}
+
+/*
+ * interface_authorized_default_store - store default authorization status
+ * for USB interfaces
+ *
+ * note: interface_authorized_default is the default value
+ * for initializing the authorized attribute of interfaces
+ */
+static ssize_t interface_authorized_default_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct usb_device *usb_dev = to_usb_device(dev);
+ struct usb_hcd *hcd = bus_to_hcd(usb_dev->bus);
+ int rc = count;
+ bool val;
+
+ if (strtobool(buf, &val) != 0)
+ return -EINVAL;
+
+ if (val)
+ set_bit(HCD_FLAG_INTF_AUTHORIZED, &hcd->flags);
+ else
+ clear_bit(HCD_FLAG_INTF_AUTHORIZED, &hcd->flags);
+
+ return rc;
+}
+static DEVICE_ATTR_RW(interface_authorized_default);
+
/* Group all the USB bus attributes */
static struct attribute *usb_bus_attrs[] = {
&dev_attr_authorized_default.attr,
+ &dev_attr_interface_authorized_default.attr,
NULL,
};
@@ -2676,12 +2727,22 @@ int usb_add_hcd(struct usb_hcd *hcd,
dev_info(hcd->self.controller, "%s\n", hcd->product_desc);
/* Keep old behaviour if authorized_default is not in [0, 1]. */
- if (authorized_default < 0 || authorized_default > 1)
- hcd->authorized_default = hcd->wireless ? 0 : 1;
- else
- hcd->authorized_default = authorized_default;
+ if (authorized_default < 0 || authorized_default > 1) {
+ if (hcd->wireless)
+ clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+ else
+ set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+ } else {
+ if (authorized_default)
+ set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+ else
+ clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+ }
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ /* per default all interfaces are authorized */
+ set_bit(HCD_FLAG_INTF_AUTHORIZED, &hcd->flags);
+
/* HC is in reset state, but accessible. Now do the one-time init,
* bottom up so that hcds can customize the root hubs before hub_wq
* starts talking to them. (Note, bus id is assigned early too.)
@@ -2717,6 +2778,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
rhdev->speed = USB_SPEED_WIRELESS;
break;
case HCD_USB3:
+ case HCD_USB31:
rhdev->speed = USB_SPEED_SUPER;
break;
default:
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.