github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2026-06-07 17:46:15 +00:00
Code Issues Projects Releases Wiki Activity

DM USB: introduce data structure and APIs for USB port mapper

Browse Source 
Introduce the struct usb_dev which is used to abstract the physical USB
devices. And APIs for external call are also provided.

Change-Id: Ia25d52a6c670040da787f82b3bea34eee9f3d04d
Signed-off-by: Wu, Xiaoguang <xiaoguang.wu@intel.com>
Reviewed-by: Shuo Liu <shuo.a.liu@intel.com>
Reviewed-by: Yu Wang <yu1.wang@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Wu, Xiaoguang
2018-04-15 17:59:21 +08:00
committed by lijinxia
parent 51f7633f82
commit 1816d3e608
6 changed files with 338 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

164
devicemodel/hw/platform/usb_pmapper.c Normal file
View File

@@ -0,0 +1,164 @@
/*
* Copyright (C) 2018 Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <pthread.h>
#include <stdio.h>
#include <assert.h>
#include <string.h>
#include "usb.h"
#include "usbdi.h"
#include "usb_core.h"
#include "usb_pmapper.h"
#undef LOG_TAG
#define LOG_TAG "USBPM: "
static struct usb_dev_sys_ctx_info g_ctx;
static void *
usb_dev_sys_thread(void *arg)
{
struct timeval t = {1, 0};
while (g_ctx.thread_exit == 0 &&
libusb_handle_events_timeout(g_ctx.libusb_ctx, &t) >= 0)
; /* nothing */
UPRINTF(LINF, "poll thread exit\n\r");
return NULL;
}
static int
usb_dev_native_sys_conn_cb(struct libusb_context *ctx, struct libusb_device
*ldev, libusb_hotplug_event event, void *pdata)
{
UPRINTF(LDBG, "connect event\r\n");
if (!ctx || !ldev) {
UPRINTF(LFTL, "connect callback fails!\n");
return -1;
}
if (g_ctx.conn_cb)
g_ctx.conn_cb(g_ctx.hci_data, ldev);
return 0;
}
static int
usb_dev_native_sys_disconn_cb(struct libusb_context *ctx, struct libusb_device
*ldev, libusb_hotplug_event event, void *pdata)
{
UPRINTF(LDBG, "disconnect event\r\n");
if (!ctx || !ldev) {
UPRINTF(LFTL, "disconnect callback fails!\n");
return -1;
}
if (g_ctx.disconn_cb)
g_ctx.disconn_cb(g_ctx.hci_data, NULL);
return 0;
}
int
usb_dev_sys_init(usb_dev_sys_cb conn_cb, usb_dev_sys_cb disconn_cb,
usb_dev_sys_cb notify_cb, usb_dev_sys_cb intr_cb,
void *hci_data, int log_level)
{
libusb_hotplug_event native_conn_evt;
libusb_hotplug_event native_disconn_evt;
libusb_hotplug_flag flags;
libusb_hotplug_callback_handle native_conn_handle;
libusb_hotplug_callback_handle native_disconn_handle;
int native_pid, native_vid, native_cls, rc;
assert(conn_cb);
assert(disconn_cb);
usb_set_log_level(log_level);
if (g_ctx.libusb_ctx) {
UPRINTF(LFTL, "port mapper is already initialized.\r\n");
return -1;
}
rc = libusb_init(&g_ctx.libusb_ctx);
if (rc < 0) {
UPRINTF(LFTL, "libusb_init fails, rc:%d\r\n", rc);
return -1;
}
g_ctx.hci_data = hci_data;
g_ctx.conn_cb = conn_cb;
g_ctx.disconn_cb = disconn_cb;
native_conn_evt = LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED;
native_disconn_evt = LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT;
native_pid = LIBUSB_HOTPLUG_MATCH_ANY;
native_vid = LIBUSB_HOTPLUG_MATCH_ANY;
native_cls = LIBUSB_HOTPLUG_MATCH_ANY;
flags = 0;
/* register connect callback */
rc = libusb_hotplug_register_callback(g_ctx.libusb_ctx, native_conn_evt,
flags, native_vid, native_pid, native_cls,
usb_dev_native_sys_conn_cb, NULL, &native_conn_handle);
if (rc != LIBUSB_SUCCESS)
goto errout;
/* register disconnect callback */
rc = libusb_hotplug_register_callback(g_ctx.libusb_ctx,
native_disconn_evt, flags, native_vid, native_pid,
native_cls, usb_dev_native_sys_disconn_cb, NULL,
&native_disconn_handle);
if (rc != LIBUSB_SUCCESS) {
libusb_hotplug_deregister_callback(g_ctx.libusb_ctx,
native_conn_handle);
goto errout;
}
if (pthread_create(&g_ctx.thread, NULL, usb_dev_sys_thread, NULL)) {
libusb_hotplug_deregister_callback(g_ctx.libusb_ctx,
native_conn_handle);
libusb_hotplug_deregister_callback(g_ctx.libusb_ctx,
native_disconn_handle);
goto errout;
}
return 0;
errout:
if (g_ctx.libusb_ctx)
libusb_exit(g_ctx.libusb_ctx);
g_ctx.libusb_ctx = NULL;
return -1;
}