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DM USB: introduce struct usb_devpath and releted functions

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This patch introduce struct usb_devpath to indentify uniquely an USB
device, which is basic element for multiple hub support.

Tracked-On: #1434
Signed-off-by: Liang Yang <liang3.yang@intel.com>
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This commit is contained in:
Liang Yang
2018-10-09 23:44:03 +08:00
committed by Xie, Nanlin
parent 14bc961f03
commit e8f7b6fa74
4 changed files with 124 additions and 78 deletions
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14
devicemodel/include/usb_core.h
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@@ -84,6 +84,8 @@ enum usb_xfer_blk_stat {
USB_XFER_BLK_HANDLED
};
#define USB_MAX_TIERS 7
struct usb_hci;
struct usb_device_request;
struct usb_data_xfer;
@@ -163,13 +165,19 @@ struct usb_data_xfer {
pthread_mutex_t mtx;
};
struct usb_devpath {
uint8_t bus;
uint8_t depth;
uint8_t path[USB_MAX_TIERS];
};
#define ROOTHUB_PORT(x) ((x).path[0])
struct usb_native_devinfo {
int speed;
uint8_t bus;
uint8_t port;
uint16_t bcd;
uint16_t pid;
uint16_t vid;
struct usb_devpath path;
void *priv_data;
};
@@ -239,5 +247,5 @@ struct usb_data_xfer_block *usb_data_xfer_append(struct usb_data_xfer *xfer,
int blen,
void *hci_data,
int ccs);
char *usb_dev_path(struct usb_devpath *path);
#endif /* _USB_CORE_H_ */