134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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*/
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#ifndef _USB_DEVICE_H
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#define _USB_DEVICE_H
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#include <libusb-1.0/libusb.h>
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#include "usb_core.h"
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#define USB_NUM_INTERFACE 16
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#define USB_NUM_ENDPOINT 15
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#define USB_EP_ADDR(d) ((d)->bEndpointAddress)
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#define USB_EP_ATTR(d) ((d)->bmAttributes)
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#define USB_EP_PID(d) (USB_EP_ADDR(d) & USB_DIR_IN ? TOKEN_IN : TOKEN_OUT)
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#define USB_EP_TYPE(d) (USB_EP_ATTR(d) & 0x3)
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#define USB_EP_NR(d) (USB_EP_ADDR(d) & 0xF)
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#define USB_EP_MAXP(d) ((d)->wMaxPacketSize)
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#define USB_EP_ERR_TYPE 0xFF
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#define USB_EP_MAXP_SZ(m) ((m) & 0x7ff)
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#define USB_EP_MAXP_MT(m) (((m) >> 11) & 0x3)
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enum {
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USB_INFO_VERSION,
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USB_INFO_SPEED,
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USB_INFO_BUS,
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USB_INFO_PORT,
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USB_INFO_VID,
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USB_INFO_PID
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};
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struct usb_dev_ep {
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uint8_t pid;
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uint8_t type;
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uint16_t maxp;
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};
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struct usb_dev {
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/* physical device info */
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struct usb_native_devinfo info;
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int addr;
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int version;
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int configuration;
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/* interface info */
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int if_num;
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int alts[USB_NUM_INTERFACE];
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/* endpoints info */
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struct usb_dev_ep epc;
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struct usb_dev_ep epi[USB_NUM_ENDPOINT];
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struct usb_dev_ep epo[USB_NUM_ENDPOINT];
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/* libusb data */
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libusb_device_handle *handle;
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};
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/*
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* The purpose to implement struct usb_dev_req is to adapt
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* struct usb_data_xfer to make a proper data format to talk
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* with libusb.
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*/
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struct usb_dev_req {
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struct usb_dev *udev;
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int in;
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int seq;
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/*
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* buffer could include data from multiple
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* usb_data_xfer_block, so here need some
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* data to record it.
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*/
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uint8_t *buffer;
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int buf_length;
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int blk_start;
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int blk_count;
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struct usb_data_xfer *xfer;
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struct libusb_transfer *trn;
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struct usb_data_xfer_block *setup_blk;
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};
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/* callback type used by code from HCD layer */
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typedef int (*usb_dev_sys_cb)(void *hci_data, void *dev_data);
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struct usb_dev_sys_ctx_info {
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/*
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* Libusb related global variables
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*/
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libusb_context *libusb_ctx;
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pthread_t thread;
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int thread_exit;
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/* handles of callback */
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libusb_hotplug_callback_handle conn_handle;
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libusb_hotplug_callback_handle disconn_handle;
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/*
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* The following callback funtions will be registered by
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* the code from HCD(eg: XHCI, EHCI...) emulation layer.
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*/
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usb_dev_sys_cb conn_cb;
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usb_dev_sys_cb disconn_cb;
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usb_dev_sys_cb notify_cb;
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usb_dev_sys_cb intr_cb;
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usb_dev_sys_cb lock_ep_cb;
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usb_dev_sys_cb unlock_ep_cb;
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libusb_device **devlist;
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/*
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* private data from HCD layer
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*/
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void *hci_data;
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};
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/* intialize the usb_dev subsystem and register callbacks for HCD layer */
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int usb_dev_sys_init(usb_dev_sys_cb conn_cb, usb_dev_sys_cb disconn_cb,
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usb_dev_sys_cb notify_cb, usb_dev_sys_cb intr_cb,
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usb_dev_sys_cb lock_ep_cb,
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usb_dev_sys_cb unlock_ep_cb,
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void *hci_data, int log_level);
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void usb_dev_sys_deinit(void);
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void *usb_dev_init(void *pdata, char *opt);
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void usb_dev_deinit(void *pdata);
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int usb_dev_info(void *pdata, int type, void *value, int size);
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int usb_dev_request(void *pdata, struct usb_data_xfer *xfer);
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int usb_dev_reset(void *pdata);
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int usb_dev_data(void *pdata, struct usb_data_xfer *xfer, int dir, int epctx);
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#endif
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