3dc1ac91d6
add common usb host waiter and drivers initialization which is required for xHCI support Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
105 lines
3.4 KiB
C
105 lines
3.4 KiB
C
/****************************************************************************
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* drivers/usbhost/usbhost_waiter.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <debug.h>
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#include <stdio.h>
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#include <nuttx/kthread.h>
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#include <nuttx/usb/usbdev.h>
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#include <nuttx/usb/usbhost.h>
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: usbhost_waiter
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*
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* Description:
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* Wait for USB devices to be connected.
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*
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****************************************************************************/
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static int usbhost_waiter(int argc, FAR char *argv[])
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{
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FAR struct usbhost_connection_s *conn =
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(FAR struct usbhost_connection_s *)((uintptr_t)strtoul(argv[1],
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NULL, 16));
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FAR struct usbhost_hubport_s *hport;
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uinfo("Running %p\n", conn);
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for (; ; )
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{
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/* Wait for the device to change state */
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DEBUGVERIFY(CONN_WAIT(conn, &hport));
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uinfo("%s\n", hport->connected ? "connected" : "disconnected");
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/* Did we just become connected? */
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if (hport->connected)
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{
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/* Yes.. enumerate the newly connected device */
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CONN_ENUMERATE(conn, hport);
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}
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}
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/* Keep the compiler from complaining */
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return 0;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: usbhost_waiter_initialize
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*
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* Description:
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* Initialize the USB host waiter. This function will start a thread that
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* will monitor for device connection/disconnection events.
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*
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****************************************************************************/
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int usbhost_waiter_initialize(FAR struct usbhost_connection_s *conn)
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{
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FAR char *argv[2];
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char arg1[32];
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/* Start a thread to handle device connection. */
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snprintf(arg1, 16, "%p", conn);
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argv[0] = arg1;
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argv[1] = NULL;
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return kthread_create("usbhost",
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CONFIG_USBHOST_WAITER_PRIO,
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CONFIG_USBHOST_WAITER_STACKSIZE,
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usbhost_waiter, argv);
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}
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