diff options
| -rw-r--r-- | drivers/usb/core/hcd.c | 2 | ||||
| -rw-r--r-- | drivers/usb/core/hub.c | 88 | ||||
| -rw-r--r-- | include/linux/usb/ch11.h | 11 |
3 files changed, 56 insertions, 45 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 2cec49d1773d..eb19cba34ac9 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -658,7 +658,7 @@ error: len > offsetof(struct usb_device_descriptor, bDeviceProtocol)) ((struct usb_device_descriptor *) ubuf)-> - bDeviceProtocol = 1; + bDeviceProtocol = USB_HUB_PR_HS_SINGLE_TT; } /* any errors get returned through the urb completion */ diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 29d0669227ec..79d339e2e700 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -84,7 +84,7 @@ struct usb_hub { static inline int hub_is_superspeed(struct usb_device *hdev) { - return (hdev->descriptor.bDeviceProtocol == 3); + return (hdev->descriptor.bDeviceProtocol == USB_HUB_PR_SS); } /* Protect struct usb_device->state and ->children members @@ -1041,58 +1041,58 @@ static int hub_configure(struct usb_hub *hub, dev_dbg(hub_dev, "standalone hub\n"); switch (wHubCharacteristics & HUB_CHAR_LPSM) { - case 0x00: - dev_dbg(hub_dev, "ganged power switching\n"); - break; - case 0x01: - dev_dbg(hub_dev, "individual port power switching\n"); - break; - case 0x02: - case 0x03: - dev_dbg(hub_dev, "no power switching (usb 1.0)\n"); - break; + case HUB_CHAR_COMMON_LPSM: + dev_dbg(hub_dev, "ganged power switching\n"); + break; + case HUB_CHAR_INDV_PORT_LPSM: + dev_dbg(hub_dev, "individual port power switching\n"); + break; + case HUB_CHAR_NO_LPSM: + case HUB_CHAR_LPSM: + dev_dbg(hub_dev, "no power switching (usb 1.0)\n"); + break; } switch (wHubCharacteristics & HUB_CHAR_OCPM) { - case 0x00: - dev_dbg(hub_dev, "global over-current protection\n"); - break; - case 0x08: - dev_dbg(hub_dev, "individual port over-current protection\n"); - break; - case 0x10: - case 0x18: - dev_dbg(hub_dev, "no over-current protection\n"); - break; + case HUB_CHAR_COMMON_OCPM: + dev_dbg(hub_dev, "global over-current protection\n"); + break; + case HUB_CHAR_INDV_PORT_OCPM: + dev_dbg(hub_dev, "individual port over-current protection\n"); + break; + case HUB_CHAR_NO_OCPM: + case HUB_CHAR_OCPM: + dev_dbg(hub_dev, "no over-current protection\n"); + break; } spin_lock_init (&hub->tt.lock); INIT_LIST_HEAD (&hub->tt.clear_list); INIT_WORK(&hub->tt.clear_work, hub_tt_work); switch (hdev->descriptor.bDeviceProtocol) { - case 0: - break; - case 1: - dev_dbg(hub_dev, "Single TT\n"); - hub->tt.hub = hdev; - break; - case 2: - ret = usb_set_interface(hdev, 0, 1); - if (ret == 0) { - dev_dbg(hub_dev, "TT per port\n"); - hub->tt.multi = 1; - } else - dev_err(hub_dev, "Using single TT (err %d)\n", - ret); - hub->tt.hub = hdev; - break; - case 3: - /* USB 3.0 hubs don't have a TT */ - break; - default: - dev_dbg(hub_dev, "Unrecognized hub protocol %d\n", - hdev->descriptor.bDeviceProtocol); - break; + case USB_HUB_PR_FS: + break; + case USB_HUB_PR_HS_SINGLE_TT: + dev_dbg(hub_dev, "Single TT\n"); + hub->tt.hub = hdev; + break; + case USB_HUB_PR_HS_MULTI_TT: + ret = usb_set_interface(hdev, 0, 1); + if (ret == 0) { + dev_dbg(hub_dev, "TT per port\n"); + hub->tt.multi = 1; + } else + dev_err(hub_dev, "Using single TT (err %d)\n", + ret); + hub->tt.hub = hdev; + break; + case USB_HUB_PR_SS: + /* USB 3.0 hubs don't have a TT */ + break; + default: + dev_dbg(hub_dev, "Unrecognized hub protocol %d\n", + hdev->descriptor.bDeviceProtocol); + break; } /* Note 8 FS bit times == (8 bits / 12000000 bps) ~= 666ns */ diff --git a/include/linux/usb/ch11.h b/include/linux/usb/ch11.h index 55e7325926c1..0832eb841a30 100644 --- a/include/linux/usb/ch11.h +++ b/include/linux/usb/ch11.h @@ -207,6 +207,17 @@ struct usb_hub_status { #define USB_DT_HUB_NONVAR_SIZE 7 #define USB_DT_SS_HUB_SIZE 12 +/* + * Hub Device descriptor + * USB Hub class device protocols + */ + +#define USB_HUB_PR_FS 0 /* Full speed hub */ +#define USB_HUB_PR_HS_NO_TT 0 /* Hi-speed hub without TT */ +#define USB_HUB_PR_HS_SINGLE_TT 1 /* Hi-speed hub with single TT */ +#define USB_HUB_PR_HS_MULTI_TT 2 /* Hi-speed hub with multiple TT */ +#define USB_HUB_PR_SS 3 /* Super speed hub */ + struct usb_hub_descriptor { __u8 bDescLength; __u8 bDescriptorType; |