2182 lines
57 KiB
C
2182 lines
57 KiB
C
/****************************************************************************
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* drivers/usbdev/adb.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 <nuttx/nuttx.h>
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#include <queue.h>
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#include <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/kmalloc.h>
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#include <nuttx/usb/usb.h>
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#include <nuttx/usb/usbdev.h>
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#include <nuttx/usb/usbdev_trace.h>
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#include <nuttx/usb/adb.h>
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#include <nuttx/fs/fs.h>
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#include <fcntl.h>
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#include <poll.h>
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#ifdef CONFIG_USBADB_BOARD_SERIALSTR
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#include <nuttx/board.h>
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#endif
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#ifdef CONFIG_USBADB_COMPOSITE
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# include <nuttx/usb/composite.h>
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# include "composite.h"
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* FIXME use minor for char device npath */
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#define USBADB_CHARDEV_PATH "/dev/adb0"
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/* USB Controller */
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#ifdef CONFIG_USBDEV_SELFPOWERED
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# define USBADB_SELFPOWERED USB_CONFIG_ATTR_SELFPOWER
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#else
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# define USBADB_SELFPOWERED (0)
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#endif
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#ifdef CONFIG_USBDEV_REMOTEWAKEUP
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# define USBADB_REMOTEWAKEUP USB_CONFIG_ATTR_WAKEUP
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#else
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# define USBADB_REMOTEWAKEUP (0)
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#endif
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/* Buffer big enough for any of our descriptors (the config descriptor is the
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* biggest).
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*/
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#define USBADB_MXDESCLEN (64)
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#define USBADB_MAXSTRLEN (USBADB_MXDESCLEN-2)
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/* Device descriptor values */
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#define USBADB_VERSIONNO (0x0101) /* Device version number 1.1 (BCD) */
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/* String language */
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#define USBADB_STR_LANGUAGE (0x0409) /* en-us */
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/* Descriptor strings. If there serial device is part of a composite device
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* then the manufacturer, product, and serial number strings will be provided
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* by the composite logic.
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*/
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#ifndef CONFIG_USBADB_COMPOSITE
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# define USBADB_MANUFACTURERSTRID (1)
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# define USBADB_PRODUCTSTRID (2)
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# define USBADB_SERIALSTRID (3)
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# define USBADB_CONFIGSTRID (4)
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# define USBADB_INTERFACESTRID (5)
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#else
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# define USBADB_INTERFACESTRID (1)
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# define USBADB_NSTRIDS (1)
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#endif
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#define USBADB_NCONFIGS (1)
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#define USBADB_CONFIGID (1)
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#define USBADB_CONFIGIDNONE (0)
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/* Length of ADB descriptor */
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#define USBADB_DESC_TOTALLEN 32
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/* Manage char device non blocking io */
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typedef struct adb_char_waiter_sem_s
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{
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sem_t sem;
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FAR struct adb_char_waiter_sem_s *next;
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} adb_char_waiter_sem_t;
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/* Container to support a list of requests */
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struct usbadb_wrreq_s
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{
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FAR sq_entry_t node; /* Implements a singly linked list */
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FAR struct usbdev_req_s *req; /* The contained request */
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};
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struct usbadb_rdreq_s
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{
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FAR sq_entry_t node; /* Implements a singly linked list */
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FAR struct usbdev_req_s *req; /* The contained request */
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uint16_t offset; /* Offset to valid data in the RX request */
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};
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/* This structure describes the internal state of the driver */
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struct usbdev_adb_s
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{
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FAR struct usbdev_s *usbdev; /* usbdev driver pointer */
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#ifdef CONFIG_USBADB_COMPOSITE
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struct usbdev_devinfo_s devinfo;
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#endif
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FAR struct usbdev_ep_s *epbulkin; /* Bulk IN endpoint structure */
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FAR struct usbdev_ep_s *epbulkout; /* Bulk OUT endpoint structure */
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FAR struct usbdev_req_s *ctrlreq; /* Preallocated control request */
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uint8_t config; /* USB Configuration number */
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struct sq_queue_s txfree; /* Available write request containers */
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struct sq_queue_s rxpending; /* Pending read request containers */
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/* Pre-allocated request containers. The write requests will be
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* linked in a free list (txfree), and used to send requests to
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* EPBULKIN; Read requests will be queued in the EBULKOUT.
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*/
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struct usbadb_wrreq_s wrreqs[CONFIG_USBADB_NWRREQS];
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struct usbadb_rdreq_s rdreqs[CONFIG_USBADB_NRDREQS];
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/* Char device driver */
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sem_t exclsem; /* Enforces device exclusive access */
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adb_char_waiter_sem_t *rdsems; /* List of blocking readers */
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adb_char_waiter_sem_t *wrsems; /* List of blocking writers */
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uint8_t crefs; /* Count of opened instances */
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FAR struct pollfd *fds[CONFIG_USBADB_NPOLLWAITERS];
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};
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struct adb_driver_s
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{
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struct usbdevclass_driver_s drvr;
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struct usbdev_adb_s dev;
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};
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struct adb_cfgdesc_s
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{
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#ifndef CONFIG_USBADB_COMPOSITE
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struct usb_cfgdesc_s cfgdesc; /* Configuration descriptor */
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#endif
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struct usb_ifdesc_s ifdesc; /* ADB interface descriptor */
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/* USB class device *********************************************************/
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static int usbclass_bind(FAR struct usbdevclass_driver_s *driver,
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FAR struct usbdev_s *dev);
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static void usbclass_unbind(FAR struct usbdevclass_driver_s *driver,
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FAR struct usbdev_s *dev);
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static int usbclass_setup(FAR struct usbdevclass_driver_s *driver,
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FAR struct usbdev_s *dev,
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FAR const struct usb_ctrlreq_s *ctrl, FAR uint8_t *dataout,
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size_t outlen);
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static void usbclass_disconnect(FAR struct usbdevclass_driver_s *driver,
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FAR struct usbdev_s *dev);
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static void usbclass_suspend(FAR struct usbdevclass_driver_s *driver,
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FAR struct usbdev_s *dev);
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static void usbclass_resume(FAR struct usbdevclass_driver_s *driver,
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FAR struct usbdev_s *dev);
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static FAR struct usbdev_req_s *usbclass_allocreq(FAR struct usbdev_ep_s *ep,
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uint16_t len);
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/* Char device Operations ***************************************************/
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static int adb_char_open(FAR struct file *filep);
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static int adb_char_close(FAR struct file *filep);
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static ssize_t adb_char_read(FAR struct file *filep, FAR char *buffer,
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size_t len);
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static ssize_t adb_char_write(FAR struct file *filep,
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FAR const char *buffer, size_t len);
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static int adb_char_ioctl(FAR struct file *filep, int cmd,
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unsigned long arg);
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static int adb_char_poll(FAR struct file *filep, FAR struct pollfd *fds,
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bool setup);
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static void adb_char_notify_readers(FAR struct usbdev_adb_s *priv);
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static void adb_char_pollnotify(FAR struct usbdev_adb_s *dev,
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pollevent_t eventset);
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static void adb_char_on_connect(FAR struct usbdev_adb_s *priv, int connect);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* USB class device *********************************************************/
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static const struct usbdevclass_driverops_s g_adb_driverops =
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{
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usbclass_bind, /* bind */
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usbclass_unbind, /* unbind */
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usbclass_setup, /* setup */
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usbclass_disconnect, /* disconnect */
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usbclass_suspend, /* suspend */
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usbclass_resume /* resume */
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};
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/* Char device **************************************************************/
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static const struct file_operations g_adb_fops =
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{
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adb_char_open, /* open */
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adb_char_close, /* close */
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adb_char_read, /* read */
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adb_char_write, /* write */
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NULL, /* seek */
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adb_char_ioctl, /* ioctl */
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adb_char_poll /* poll */
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#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
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, NULL /* unlink */
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#endif
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};
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/* USB descriptor ***********************************************************/
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#ifndef CONFIG_USBADB_COMPOSITE
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static const struct usb_devdesc_s g_adb_devdesc =
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{
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.len = USB_SIZEOF_DEVDESC, /* Descriptor length */
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.type = USB_DESC_TYPE_DEVICE, /* Descriptor type */
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.usb = /* USB version */
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{
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LSBYTE(0x0200),
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MSBYTE(0x0200)
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},
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.classid = 0, /* Device class */
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.subclass = 0, /* Device sub-class */
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.protocol = 0, /* Device protocol */
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.mxpacketsize = CONFIG_USBADB_EP0MAXPACKET, /* Max packet size (ep0) */
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.vendor = /* Vendor ID */
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{
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LSBYTE(CONFIG_USBADB_VENDORID),
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MSBYTE(CONFIG_USBADB_VENDORID)
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},
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.product = /* Product ID */
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{ LSBYTE(CONFIG_USBADB_PRODUCTID),
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MSBYTE(CONFIG_USBADB_PRODUCTID)
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},
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.device = /* Device ID */
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{ LSBYTE(USBADB_VERSIONNO),
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MSBYTE(USBADB_VERSIONNO)
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},
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.imfgr = USBADB_MANUFACTURERSTRID, /* Manufacturer */
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.iproduct = USBADB_PRODUCTSTRID, /* Product */
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.serno = USBADB_SERIALSTRID, /* Serial number */
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.nconfigs = 1 /* Number of configurations */
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};
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#endif
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static const struct adb_cfgdesc_s g_adb_cfgdesc =
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{
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#ifndef CONFIG_USBADB_COMPOSITE
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{
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.len = USB_SIZEOF_CFGDESC, /* Descriptor length */
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.type = USB_DESC_TYPE_CONFIG, /* Descriptor type */
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.totallen =
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{
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LSBYTE(USBADB_DESC_TOTALLEN), /* LS Total length */
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MSBYTE(USBADB_DESC_TOTALLEN) /* MS Total length */
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},
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.ninterfaces = 1, /* Number of interfaces */
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.cfgvalue = 1, /* Configuration value */
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.icfg = USBADB_CONFIGSTRID, /* Configuration */
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.attr = USB_CONFIG_ATTR_ONE |
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USBADB_SELFPOWERED |
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USBADB_REMOTEWAKEUP, /* Attributes */
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.mxpower = (CONFIG_USBDEV_MAXPOWER + 1) / 2 /* Max power (mA/2) */
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},
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#endif
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{
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.len = USB_SIZEOF_IFDESC,
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.type = USB_DESC_TYPE_INTERFACE,
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.ifno = 0,
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.alt = 0,
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.neps = 2,
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.classid = USB_CLASS_VENDOR_SPEC,
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.subclass = 0x42,
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.protocol = 0x01,
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.iif = USBADB_INTERFACESTRID
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}
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: usbclass_allocreq
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*
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* Description:
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* Allocate request buffer for a specified endpoint.
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*
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****************************************************************************/
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static FAR struct usbdev_req_s *usbclass_allocreq(FAR struct usbdev_ep_s *ep,
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uint16_t len)
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{
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FAR struct usbdev_req_s *req;
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req = EP_ALLOCREQ(ep);
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if (req != NULL)
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{
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req->len = len;
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req->buf = EP_ALLOCBUFFER(ep, len);
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if (req->buf == NULL)
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{
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EP_FREEREQ(ep, req);
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req = NULL;
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}
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}
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return req;
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}
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/****************************************************************************
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* Name: usbclass_copy_epdesc
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*
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* Description:
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* Copies the requested Endpoint Description into the buffer given.
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* Returns the number of Bytes filled in ( sizeof(struct usb_epdesc_s) ).
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*
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****************************************************************************/
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static int usbclass_copy_epdesc(int epid, FAR struct usb_epdesc_s *epdesc,
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FAR struct usbdev_devinfo_s *devinfo,
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bool hispeed)
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{
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#ifndef CONFIG_USBDEV_DUALSPEED
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UNUSED(hispeed);
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#endif
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epdesc->len = USB_SIZEOF_EPDESC; /* Descriptor length */
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epdesc->type = USB_DESC_TYPE_ENDPOINT; /* Descriptor type */
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epdesc->attr = USB_EP_ATTR_XFER_BULK | /* Endpoint attributes */
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USB_EP_ATTR_NO_SYNC |
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USB_EP_ATTR_USAGE_DATA;
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epdesc->interval = 0; /* Interval */
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if (epid == USBADB_EP_BULKIN_IDX) /* Bulk IN endpoint */
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{
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/* Endpoint address */
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#ifdef CONFIG_USBADB_COMPOSITE
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epdesc->addr = USB_EPIN(devinfo->epno[USBADB_EP_BULKIN_IDX]);
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#else
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epdesc->addr = USB_EPIN(CONFIG_USBADB_EPBULKIN);
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#endif
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#ifdef CONFIG_USBDEV_DUALSPEED
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if (hispeed)
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{
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/* Maximum packet size (high speed) */
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epdesc->mxpacketsize[0] = LSBYTE(CONFIG_USBADB_EPBULKIN_HSSIZE);
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epdesc->mxpacketsize[1] = MSBYTE(CONFIG_USBADB_EPBULKIN_HSSIZE);
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}
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else
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#endif
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{
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/* Maximum packet size (full speed) */
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epdesc->mxpacketsize[0] = LSBYTE(CONFIG_USBADB_EPBULKIN_FSSIZE);
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epdesc->mxpacketsize[1] = MSBYTE(CONFIG_USBADB_EPBULKIN_FSSIZE);
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}
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}
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else /* USBADB_EP_BULKOUT_IDX: Bulk OUT endpoint */
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{
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/* Endpoint address */
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#ifdef CONFIG_USBADB_COMPOSITE
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epdesc->addr = USB_EPOUT(devinfo->epno[USBADB_EP_BULKOUT_IDX]);
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#else
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epdesc->addr = USB_EPOUT(CONFIG_USBADB_EPBULKOUT);
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#endif
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#ifdef CONFIG_USBDEV_DUALSPEED
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if (hispeed)
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{
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/* Maximum packet size (high speed) */
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epdesc->mxpacketsize[0] = LSBYTE(CONFIG_USBADB_EPBULKOUT_HSSIZE);
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epdesc->mxpacketsize[1] = MSBYTE(CONFIG_USBADB_EPBULKOUT_HSSIZE);
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}
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else
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#endif
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{
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/* Maximum packet size (full speed) */
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epdesc->mxpacketsize[0] = LSBYTE(CONFIG_USBADB_EPBULKOUT_FSSIZE);
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epdesc->mxpacketsize[1] = MSBYTE(CONFIG_USBADB_EPBULKOUT_FSSIZE);
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}
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}
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return sizeof(struct usb_epdesc_s);
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}
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/****************************************************************************
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* Name: usb_adb_submit_rdreq
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*
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* Description:
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* Submits the bulk OUT read request. Takes care not to submit the request
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* when the RX packet buffer is already in use.
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*
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* Input Parameters:
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* priv: pointer to ADB device driver structure
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*
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* Returned Value:
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* The return value of the EP_SUBMIT operation
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*
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****************************************************************************/
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static int usb_adb_submit_rdreq(FAR struct usbdev_adb_s *priv,
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FAR struct usbadb_rdreq_s *rdcontainer)
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{
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FAR struct usbdev_req_s *req;
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FAR struct usbdev_ep_s *ep;
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int ret;
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DEBUGASSERT(priv != NULL && rdcontainer != NULL);
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req = rdcontainer->req;
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DEBUGASSERT(req != NULL);
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/* Requeue the read request */
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ep = priv->epbulkout;
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req->len = ep->maxpacket;
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ret = EP_SUBMIT(ep, req);
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if (ret != OK)
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{
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usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_RDSUBMIT),
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(uint16_t)-req->result);
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}
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return ret;
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}
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|
|
/****************************************************************************
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* Name: usb_adb_wrcomplete
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*
|
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* Description:
|
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* Handle completion of write request. This function probably executes
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* in the context of an interrupt handler.
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*
|
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****************************************************************************/
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|
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static void usb_adb_wrcomplete(FAR struct usbdev_ep_s *ep,
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FAR struct usbdev_req_s *req)
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{
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FAR struct usbadb_wrreq_s *wrcontainer;
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FAR struct usbdev_adb_s *priv;
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irqstate_t flags;
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|
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/* Sanity check */
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|
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#ifdef CONFIG_DEBUG_FEATURES
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if (!ep || !ep->priv || !req || !req->priv)
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{
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usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_INVALIDARG), 0);
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return;
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}
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#endif
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|
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/* Extract references to private data */
|
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|
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priv = (FAR struct usbdev_adb_s *)ep->priv;
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wrcontainer = (FAR struct usbadb_wrreq_s *)req->priv;
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|
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/* Return the write request to the free list */
|
|
|
|
flags = enter_critical_section();
|
|
sq_addlast(&wrcontainer->node, &priv->txfree);
|
|
|
|
/* Check for termination condition */
|
|
|
|
switch (req->result)
|
|
{
|
|
case OK: /* Normal completion */
|
|
{
|
|
usbtrace(TRACE_CLASSWRCOMPLETE, priv->nwrq);
|
|
|
|
/* Notify all waiting writers that write req is available */
|
|
|
|
adb_char_waiter_sem_t *cur_sem = priv->wrsems;
|
|
while (cur_sem != NULL)
|
|
{
|
|
nxsem_post(&cur_sem->sem);
|
|
cur_sem = cur_sem->next;
|
|
}
|
|
|
|
priv->wrsems = NULL;
|
|
|
|
/* Notify all poll/select waiters */
|
|
|
|
adb_char_pollnotify(priv, POLLOUT);
|
|
}
|
|
break;
|
|
|
|
case -ESHUTDOWN: /* Disconnection */
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_WRSHUTDOWN), priv->nwrq);
|
|
}
|
|
break;
|
|
|
|
default: /* Some other error occurred */
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_WRUNEXPECTED),
|
|
(uint16_t)-req->result);
|
|
}
|
|
break;
|
|
}
|
|
|
|
leave_critical_section(flags);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: usb_adb_rdcomplete
|
|
*
|
|
* Description:
|
|
* Handle completion of read request on the bulk OUT endpoint.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void usb_adb_rdcomplete(FAR struct usbdev_ep_s *ep,
|
|
FAR struct usbdev_req_s *req)
|
|
{
|
|
FAR struct usbadb_rdreq_s *rdcontainer;
|
|
FAR struct usbdev_adb_s *priv;
|
|
irqstate_t flags;
|
|
|
|
/* Sanity check */
|
|
|
|
#ifdef CONFIG_DEBUG_FEATURES
|
|
if (!ep || !ep->priv || !req)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_INVALIDARG), 0);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/* Extract references to private data */
|
|
|
|
priv = (FAR struct usbdev_adb_s *)ep->priv;
|
|
rdcontainer = (FAR struct usbadb_rdreq_s *)req->priv;
|
|
|
|
/* Process the received data unless this is some unusual condition */
|
|
|
|
switch (req->result)
|
|
{
|
|
case 0: /* Normal completion */
|
|
|
|
usbtrace(TRACE_CLASSRDCOMPLETE, priv->nrdq);
|
|
|
|
/* Restart request due to either no reader or
|
|
* empty frame received.
|
|
*/
|
|
|
|
if (priv->crefs == 0)
|
|
{
|
|
uwarn("drop frame\n");
|
|
goto restart_req;
|
|
}
|
|
|
|
if (req->xfrd <= 0)
|
|
{
|
|
goto restart_req;
|
|
}
|
|
|
|
/* Queue request and notify readers */
|
|
|
|
flags = enter_critical_section();
|
|
|
|
/* Put request on RX pending queue */
|
|
|
|
rdcontainer->offset = 0;
|
|
sq_addlast(&rdcontainer->node, &priv->rxpending);
|
|
|
|
adb_char_notify_readers(priv);
|
|
|
|
leave_critical_section(flags);
|
|
return;
|
|
|
|
case -ESHUTDOWN: /* Disconnection */
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_RDSHUTDOWN), 0);
|
|
return;
|
|
|
|
default: /* Some other error occurred */
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_RDUNEXPECTED),
|
|
(uint16_t)-req->result);
|
|
goto restart_req;
|
|
};
|
|
|
|
restart_req:
|
|
|
|
/* Restart request */
|
|
|
|
usb_adb_submit_rdreq(priv, rdcontainer);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: usbclass_resetconfig
|
|
*
|
|
* Description:
|
|
* Mark the device as not configured and disable all endpoints.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void usbclass_resetconfig(FAR struct usbdev_adb_s *priv)
|
|
{
|
|
/* Are we configured? */
|
|
|
|
if (priv->config != USBADB_CONFIGIDNONE)
|
|
{
|
|
/* Yes.. but not anymore */
|
|
|
|
adb_char_on_connect(priv, 0);
|
|
|
|
/* Disable endpoints. This should force completion of all pending
|
|
* transfers.
|
|
*/
|
|
|
|
EP_DISABLE(priv->epbulkin);
|
|
EP_DISABLE(priv->epbulkout);
|
|
}
|
|
|
|
priv->config = USBADB_CONFIGIDNONE;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: usbclass_setconfig
|
|
*
|
|
* Description:
|
|
* Set the device configuration by allocating and configuring endpoints and
|
|
* by allocating and queue read and write requests.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int usbclass_setconfig(FAR struct usbdev_adb_s *priv, uint8_t config)
|
|
{
|
|
struct usb_epdesc_s epdesc;
|
|
bool hispeed = false;
|
|
int i;
|
|
int ret = 0;
|
|
|
|
#ifdef CONFIG_DEBUG_FEATURES
|
|
if (priv == NULL)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_INVALIDARG), 0);
|
|
return -EIO;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_USBDEV_DUALSPEED
|
|
hispeed = (priv->usbdev->speed == USB_SPEED_HIGH);
|
|
#endif
|
|
|
|
if (config == priv->config)
|
|
{
|
|
/* Already configured -- Do nothing */
|
|
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_ALREADYCONFIGURED), 0);
|
|
return 0;
|
|
}
|
|
|
|
/* Discard the previous configuration data */
|
|
|
|
usbclass_resetconfig(priv);
|
|
|
|
/* Was this a request to simply discard the current configuration? */
|
|
|
|
if (config == USBADB_CONFIGIDNONE)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_CONFIGNONE), 0);
|
|
return 0;
|
|
}
|
|
|
|
/* We only accept one configuration */
|
|
|
|
if (config != USBADB_CONFIGID)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_CONFIGIDBAD), 0);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Configure the IN bulk endpoint */
|
|
|
|
#ifdef CONFIG_USBADB_COMPOSITE
|
|
usbclass_copy_epdesc(USBADB_EP_BULKIN_IDX, &epdesc,
|
|
&priv->devinfo, hispeed);
|
|
#else
|
|
usbclass_copy_epdesc(USBADB_EP_BULKIN_IDX, &epdesc, NULL, hispeed);
|
|
#endif
|
|
|
|
ret = EP_CONFIGURE(priv->epbulkin, &epdesc, false);
|
|
|
|
if (ret < 0)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_EPBULKINCONFIGFAIL), 0);
|
|
goto errout;
|
|
}
|
|
|
|
priv->epbulkin->priv = priv;
|
|
|
|
/* Configure the OUT bulk endpoint */
|
|
|
|
#ifdef CONFIG_USBADB_COMPOSITE
|
|
usbclass_copy_epdesc(USBADB_EP_BULKOUT_IDX, &epdesc,
|
|
&priv->devinfo, hispeed);
|
|
#else
|
|
usbclass_copy_epdesc(USBADB_EP_BULKOUT_IDX, &epdesc, NULL, hispeed);
|
|
#endif
|
|
ret = EP_CONFIGURE(priv->epbulkout, &epdesc, true);
|
|
|
|
if (ret < 0)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_EPBULKOUTCONFIGFAIL), 0);
|
|
goto errout;
|
|
}
|
|
|
|
priv->epbulkout->priv = priv;
|
|
|
|
/* Queue read requests in the bulk OUT endpoint */
|
|
|
|
for (i = 0; i < CONFIG_USBADB_NRDREQS; i++)
|
|
{
|
|
priv->rdreqs[i].req->callback = usb_adb_rdcomplete;
|
|
ret = usb_adb_submit_rdreq(priv, &priv->rdreqs[i]);
|
|
if (ret != OK)
|
|
{
|
|
/* TODO cancel submitted requests */
|
|
|
|
goto errout;
|
|
}
|
|
}
|
|
|
|
/* We are successfully configured. Char device is now active */
|
|
|
|
priv->config = config;
|
|
adb_char_on_connect(priv, 1);
|
|
return OK;
|
|
|
|
errout:
|
|
usbclass_resetconfig(priv);
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: usbclass_ep0incomplete
|
|
*
|
|
* Description:
|
|
* Handle completion of EP0 control operations
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void usbclass_ep0incomplete(FAR struct usbdev_ep_s *ep,
|
|
FAR struct usbdev_req_s *req)
|
|
{
|
|
if (req->result || req->xfrd != req->len)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_REQRESULT),
|
|
(uint16_t)-req->result);
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_USBDEV_DUALSPEED
|
|
static int16_t usbclass_mkcfgdesc(FAR uint8_t *buf,
|
|
FAR struct usbdev_devinfo_s *devinfo,
|
|
uint8_t speed, uint8_t type);
|
|
#else
|
|
static int16_t usbclass_mkcfgdesc(FAR uint8_t *buf,
|
|
FAR struct usbdev_devinfo_s *devinfo)
|
|
#endif
|
|
{
|
|
bool hispeed = false;
|
|
FAR struct usb_epdesc_s *epdesc;
|
|
FAR struct adb_cfgdesc_s *dest;
|
|
|
|
#ifdef CONFIG_USBDEV_DUALSPEED
|
|
hispeed = (speed == USB_SPEED_HIGH);
|
|
|
|
/* Check for switches between high and full speed */
|
|
|
|
if (type == USB_DESC_TYPE_OTHERSPEEDCONFIG)
|
|
{
|
|
hispeed = !hispeed;
|
|
}
|
|
#endif
|
|
|
|
dest = (FAR struct adb_cfgdesc_s *)buf;
|
|
epdesc = (FAR struct usb_epdesc_s *)(buf + sizeof(g_adb_cfgdesc));
|
|
|
|
memcpy(dest, &g_adb_cfgdesc, sizeof(g_adb_cfgdesc));
|
|
|
|
#ifdef CONFIG_USBADB_COMPOSITE
|
|
usbclass_copy_epdesc(USBADB_EP_BULKIN_IDX, &epdesc[0], devinfo, hispeed);
|
|
usbclass_copy_epdesc(USBADB_EP_BULKOUT_IDX, &epdesc[1], devinfo, hispeed);
|
|
#else
|
|
usbclass_copy_epdesc(USBADB_EP_BULKIN_IDX, &epdesc[0], NULL, hispeed);
|
|
usbclass_copy_epdesc(USBADB_EP_BULKOUT_IDX, &epdesc[1], NULL, hispeed);
|
|
#endif
|
|
|
|
#ifdef CONFIG_USBADB_COMPOSITE
|
|
/* For composite device, apply possible offset to the interface numbers */
|
|
|
|
dest->ifdesc.ifno = devinfo->ifnobase;
|
|
dest->ifdesc.iif = devinfo->strbase + USBADB_INTERFACESTRID;
|
|
#endif
|
|
|
|
return sizeof(g_adb_cfgdesc)+2*USB_SIZEOF_EPDESC;
|
|
}
|
|
|
|
static int usbclass_mkstrdesc(uint8_t id, FAR struct usb_strdesc_s *strdesc)
|
|
{
|
|
FAR uint8_t *data = (FAR uint8_t *)(strdesc + 1);
|
|
FAR const char *str;
|
|
int len;
|
|
int ndata;
|
|
int i;
|
|
|
|
switch (id)
|
|
{
|
|
#ifndef CONFIG_USBADB_COMPOSITE
|
|
case 0:
|
|
{
|
|
/* Descriptor 0 is the language id */
|
|
|
|
strdesc->len = 4;
|
|
strdesc->type = USB_DESC_TYPE_STRING;
|
|
data[0] = LSBYTE(USBADB_STR_LANGUAGE);
|
|
data[1] = MSBYTE(USBADB_STR_LANGUAGE);
|
|
return 4;
|
|
}
|
|
|
|
case USBADB_MANUFACTURERSTRID:
|
|
str = CONFIG_USBADB_VENDORSTR;
|
|
break;
|
|
|
|
case USBADB_PRODUCTSTRID:
|
|
str = CONFIG_USBADB_PRODUCTSTR;
|
|
break;
|
|
|
|
case USBADB_SERIALSTRID:
|
|
#ifdef CONFIG_USBADB_BOARD_SERIALSTR
|
|
str = board_usbdev_serialstr();
|
|
#else
|
|
str = CONFIG_USBADB_SERIALSTR;
|
|
#endif
|
|
break;
|
|
|
|
case USBADB_CONFIGSTRID:
|
|
str = CONFIG_USBADB_CONFIGSTR;
|
|
break;
|
|
#endif
|
|
|
|
/* Composite driver removes offset before calling mkstrdesc() */
|
|
|
|
case USBADB_INTERFACESTRID:
|
|
str = CONFIG_USBADB_INTERFACESTR;
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* The string is utf16-le. The poor man's utf-8 to utf16-le
|
|
* conversion below will only handle 7-bit en-us ascii
|
|
*/
|
|
|
|
len = strlen(str);
|
|
if (len > (USBADB_MAXSTRLEN / 2))
|
|
{
|
|
len = (USBADB_MAXSTRLEN / 2);
|
|
}
|
|
|
|
for (i = 0, ndata = 0; i < len; i++, ndata += 2)
|
|
{
|
|
data[ndata] = str[i];
|
|
data[ndata + 1] = 0;
|
|
}
|
|
|
|
strdesc->len = ndata + 2;
|
|
strdesc->type = USB_DESC_TYPE_STRING;
|
|
return strdesc->len;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* USB Class Driver Methods
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: usbclass_bind
|
|
*
|
|
* Description:
|
|
* Invoked when the driver is bound to a USB device driver
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int usbclass_bind(FAR struct usbdevclass_driver_s *driver,
|
|
FAR struct usbdev_s *dev)
|
|
{
|
|
int ret;
|
|
int i;
|
|
uint16_t reqlen;
|
|
irqstate_t flags;
|
|
FAR struct usbdev_adb_s *priv = &((FAR struct adb_driver_s *)driver)->dev;
|
|
|
|
usbtrace(TRACE_CLASSBIND, 0);
|
|
|
|
priv->ctrlreq = usbclass_allocreq(dev->ep0, USBADB_MXDESCLEN);
|
|
if (priv->ctrlreq == NULL)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_ALLOCCTRLREQ), 0);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
priv->ctrlreq->callback = usbclass_ep0incomplete;
|
|
|
|
/* Pre-allocate all endpoints... the endpoints will not be functional
|
|
* until the SET CONFIGURATION request is processed in usbclass_setconfig.
|
|
* This is done here because there may be calls to kmm_malloc and the SET
|
|
* CONFIGURATION processing probably occurs within interrupt handling
|
|
* logic where kmm_malloc calls will fail.
|
|
*/
|
|
|
|
/* Pre-allocate the IN bulk endpoint */
|
|
|
|
priv->epbulkin = DEV_ALLOCEP(dev,
|
|
#ifdef CONFIG_USBADB_COMPOSITE
|
|
USB_EPIN(priv->devinfo.epno[USBADB_EP_BULKIN_IDX]),
|
|
#else
|
|
USB_EPIN(CONFIG_USBADB_EPBULKIN),
|
|
#endif
|
|
true,
|
|
USB_EP_ATTR_XFER_BULK);
|
|
|
|
if (!priv->epbulkin)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_EPBULKINALLOCFAIL), 0);
|
|
ret = -ENODEV;
|
|
goto errout;
|
|
}
|
|
|
|
priv->epbulkin->priv = priv;
|
|
|
|
/* Pre-allocate the OUT bulk endpoint */
|
|
|
|
priv->epbulkout = DEV_ALLOCEP(dev,
|
|
#ifdef CONFIG_USBADB_COMPOSITE
|
|
USB_EPOUT(priv->devinfo.epno[USBADB_EP_BULKOUT_IDX]),
|
|
#else
|
|
USB_EPOUT(CONFIG_USBADB_EPBULKOUT),
|
|
#endif
|
|
false,
|
|
USB_EP_ATTR_XFER_BULK);
|
|
|
|
if (!priv->epbulkout)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_EPBULKOUTALLOCFAIL), 0);
|
|
ret = -ENODEV;
|
|
goto errout;
|
|
}
|
|
|
|
priv->epbulkout->priv = priv;
|
|
|
|
/* Pre-allocate read requests. The buffer size is one full packet. */
|
|
|
|
#ifdef CONFIG_USBDEV_DUALSPEED
|
|
reqlen = CONFIG_USBADB_EPBULKOUT_HSSIZE;
|
|
#else
|
|
reqlen = CONFIG_USBADB_EPBULKOUT_FSSIZE;
|
|
#endif
|
|
|
|
for (i = 0; i < CONFIG_USBADB_NRDREQS; i++)
|
|
{
|
|
FAR struct usbadb_rdreq_s *rdcontainer;
|
|
|
|
rdcontainer = &priv->rdreqs[i];
|
|
rdcontainer->req = usbclass_allocreq(priv->epbulkout, reqlen);
|
|
if (rdcontainer->req == NULL)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_RDALLOCREQ), -ENOMEM);
|
|
ret = -ENOMEM;
|
|
goto errout;
|
|
}
|
|
|
|
rdcontainer->offset = 0;
|
|
rdcontainer->req->priv = rdcontainer;
|
|
rdcontainer->req->callback = usb_adb_rdcomplete;
|
|
}
|
|
|
|
/* Pre-allocate write requests. The buffer size is one full packet. */
|
|
|
|
#ifdef CONFIG_USBDEV_DUALSPEED
|
|
reqlen = CONFIG_USBADB_EPBULKIN_HSSIZE;
|
|
#else
|
|
reqlen = CONFIG_USBADB_EPBULKIN_FSSIZE;
|
|
#endif
|
|
|
|
for (i = 0; i < CONFIG_USBADB_NWRREQS; i++)
|
|
{
|
|
FAR struct usbadb_wrreq_s *wrcontainer;
|
|
|
|
wrcontainer = &priv->wrreqs[i];
|
|
wrcontainer->req = usbclass_allocreq(priv->epbulkin, reqlen);
|
|
if (wrcontainer->req == NULL)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_WRALLOCREQ), -ENOMEM);
|
|
ret = -ENOMEM;
|
|
goto errout;
|
|
}
|
|
|
|
wrcontainer->req->priv = wrcontainer;
|
|
wrcontainer->req->callback = usb_adb_wrcomplete;
|
|
|
|
flags = enter_critical_section();
|
|
sq_addlast(&wrcontainer->node, &priv->txfree);
|
|
leave_critical_section(flags);
|
|
}
|
|
|
|
/* Report if we are selfpowered (unless we are part of a
|
|
* composite device)
|
|
*/
|
|
|
|
#ifndef CONFIG_USBADB_COMPOSITE
|
|
#ifdef CONFIG_USBDEV_SELFPOWERED
|
|
DEV_SETSELFPOWERED(dev);
|
|
#endif
|
|
|
|
/* And pull-up the data line for the soft connect function (unless we are
|
|
* part of a composite device)
|
|
*/
|
|
|
|
DEV_CONNECT(dev);
|
|
#endif
|
|
return OK;
|
|
|
|
errout:
|
|
usbclass_unbind(driver, dev);
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: usbclass_unbind
|
|
*
|
|
* Description:
|
|
* Invoked when the driver is unbound from a USB device driver
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void usbclass_unbind(FAR struct usbdevclass_driver_s *driver,
|
|
FAR struct usbdev_s *dev)
|
|
{
|
|
usbtrace(TRACE_CLASSUNBIND, 0);
|
|
|
|
#warning Missing logic
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: usbclass_setup
|
|
*
|
|
* Description:
|
|
* Invoked for ep0 control requests. This function probably executes
|
|
* in the context of an interrupt handler.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int usbclass_setup(FAR struct usbdevclass_driver_s *driver,
|
|
FAR struct usbdev_s *dev,
|
|
FAR const struct usb_ctrlreq_s *ctrl,
|
|
FAR uint8_t *dataout, size_t outlen)
|
|
{
|
|
uint16_t value;
|
|
uint16_t len;
|
|
int ret = -EOPNOTSUPP;
|
|
|
|
FAR struct usbdev_adb_s *priv;
|
|
FAR struct usbdev_req_s *ctrlreq;
|
|
|
|
#ifdef CONFIG_DEBUG_FEATURES
|
|
if (!driver || !dev || !dev->ep0 || !ctrl)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_INVALIDARG), 0);
|
|
return -EIO;
|
|
}
|
|
#endif
|
|
|
|
/* Extract reference to private data */
|
|
|
|
usbtrace(TRACE_CLASSSETUP, ctrl->req);
|
|
priv = &((FAR struct adb_driver_s *)driver)->dev;
|
|
|
|
#ifdef CONFIG_DEBUG_FEATURES
|
|
if (!priv || !priv->ctrlreq)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_EP0NOTBOUND), 0);
|
|
return -ENODEV;
|
|
}
|
|
#endif
|
|
|
|
ctrlreq = priv->ctrlreq;
|
|
|
|
/* Extract the little-endian 16-bit values to host order */
|
|
|
|
value = GETUINT16(ctrl->value);
|
|
len = GETUINT16(ctrl->len);
|
|
|
|
uinfo("type=%02x req=%02x value=%04x index=%04x len=%04x\n",
|
|
ctrl->type, ctrl->req, value, GETUINT16(ctrl->index), len);
|
|
|
|
switch (ctrl->type & USB_REQ_TYPE_MASK)
|
|
{
|
|
case USB_REQ_TYPE_STANDARD:
|
|
{
|
|
switch (ctrl->req)
|
|
{
|
|
#ifndef CONFIG_USBADB_COMPOSITE
|
|
case USB_REQ_GETDESCRIPTOR:
|
|
{
|
|
/* The value field specifies the descriptor type in the
|
|
* MS byte and the descriptor index in the LS byte
|
|
* (order is little endian)
|
|
*/
|
|
|
|
switch (ctrl->value[1])
|
|
{
|
|
/* If the device is used in as part of a composite
|
|
* device, then the device descriptor is provided by logic
|
|
* in the composite device implementation.
|
|
*/
|
|
|
|
case USB_DESC_TYPE_DEVICE:
|
|
{
|
|
ret = USB_SIZEOF_DEVDESC;
|
|
memcpy(ctrlreq->buf, &g_adb_devdesc, ret);
|
|
}
|
|
break;
|
|
|
|
case USB_DESC_TYPE_DEVICEQUALIFIER:
|
|
break;
|
|
case USB_DESC_TYPE_OTHERSPEEDCONFIG:
|
|
break;
|
|
|
|
/* If the serial device is used in as part of a composite
|
|
* device, then the configuration descriptor is provided by
|
|
* logic in the composite device implementation.
|
|
*/
|
|
|
|
case USB_DESC_TYPE_CONFIG:
|
|
{
|
|
ret = usbclass_mkcfgdesc(ctrlreq->buf, NULL);
|
|
}
|
|
break;
|
|
|
|
/* If the serial device is used in as part of a composite
|
|
* device, then the language string descriptor is provided
|
|
* by logic in the composite device implementation.
|
|
*/
|
|
|
|
case USB_DESC_TYPE_STRING:
|
|
{
|
|
/* index == language code. */
|
|
|
|
ret =
|
|
usbclass_mkstrdesc(ctrl->value[0],
|
|
(FAR struct usb_strdesc_s *)
|
|
ctrlreq->buf);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
{
|
|
usbtrace(
|
|
TRACE_CLSERROR(USBSER_TRACEERR_GETUNKNOWNDESC),
|
|
value);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
/* If the serial device is used in as part of a composite device,
|
|
* then the overall composite class configuration is managed by
|
|
* logic in the composite device implementation.
|
|
*/
|
|
|
|
case USB_REQ_GETCONFIGURATION:
|
|
{
|
|
if (ctrl->type == USB_DIR_IN)
|
|
{
|
|
*(FAR uint8_t *)ctrlreq->buf = priv->config;
|
|
ret = 1;
|
|
}
|
|
}
|
|
break;
|
|
#endif /* !CONFIG_USBADB_COMPOSITE */
|
|
|
|
case USB_REQ_SETCONFIGURATION:
|
|
{
|
|
if (ctrl->type == 0)
|
|
{
|
|
ret = usbclass_setconfig(priv, value);
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_UNSUPPORTEDSTDREQ),
|
|
ctrl->req);
|
|
break;
|
|
}
|
|
}
|
|
|
|
case USB_REQ_TYPE_CLASS:
|
|
{
|
|
/* ADB-Specific Requests */
|
|
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_UNSUPPORTEDCLASSREQ),
|
|
ctrl->req);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
usbtrace(
|
|
TRACE_CLSERROR(USBSER_TRACEERR_UNSUPPORTEDTYPE),
|
|
ctrl->type);
|
|
}
|
|
}
|
|
|
|
#ifndef CONFIG_USBADB_COMPOSITE
|
|
/* Respond to the setup command if data was returned. On an error return
|
|
* value (ret < 0), the USB driver will stall.
|
|
*/
|
|
|
|
if (ret >= 0)
|
|
{
|
|
ctrlreq->len = (len < ret) ? len : ret;
|
|
ctrlreq->flags = USBDEV_REQFLAGS_NULLPKT;
|
|
|
|
/* Send the response -- either directly to the USB controller or
|
|
* indirectly in the case where this class is a member of a composite
|
|
* device.
|
|
*/
|
|
|
|
ret = EP_SUBMIT(dev->ep0, ctrlreq);
|
|
|
|
if (ret < 0)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_EPRESPQ), (uint16_t)-ret);
|
|
ctrlreq->result = OK;
|
|
usbclass_ep0incomplete(dev->ep0, ctrlreq);
|
|
}
|
|
}
|
|
#else
|
|
/* Composite should send only one request for USB_REQ_SETCONFIGURATION.
|
|
* Hence ADB driver cannot submit to ep0; composite has to handle it.
|
|
*/
|
|
|
|
#warning composite_ep0submit() seems broken so skip it in case of composite
|
|
#endif /* !CONFIG_USBADB_COMPOSITE */
|
|
|
|
/* Returning a negative value will cause a STALL */
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: usbclass_disconnect
|
|
*
|
|
* Description:
|
|
* Invoked after all transfers have been stopped, when the host is
|
|
* disconnected. This function is probably called from the context of an
|
|
* interrupt handler.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void usbclass_disconnect(FAR struct usbdevclass_driver_s *driver,
|
|
FAR struct usbdev_s *dev)
|
|
{
|
|
FAR struct usbdev_adb_s *priv;
|
|
irqstate_t flags;
|
|
|
|
usbtrace(TRACE_CLASSDISCONNECT, 0);
|
|
|
|
#ifdef CONFIG_DEBUG_FEATURES
|
|
if (!driver || !dev || !dev->ep0)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_INVALIDARG), 0);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/* Extract reference to private data */
|
|
|
|
priv = &((FAR struct adb_driver_s *)driver)->dev;
|
|
|
|
#ifdef CONFIG_DEBUG_FEATURES
|
|
if (!priv)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_EP0NOTBOUND), 0);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/* FIXME do we have to lock interrupts here ? */
|
|
|
|
flags = enter_critical_section();
|
|
|
|
/* Reset the configuration */
|
|
|
|
usbclass_resetconfig(priv);
|
|
|
|
leave_critical_section(flags);
|
|
|
|
/* Perform the soft connect function so that we will we can be
|
|
* re-enumerated (unless we are part of a composite device)
|
|
*/
|
|
|
|
#ifndef CONFIG_USBDEV_COMPOSITE
|
|
DEV_CONNECT(dev);
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: usbclass_suspend
|
|
*
|
|
* Description:
|
|
* Handle the USB suspend event.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void usbclass_suspend(FAR struct usbdevclass_driver_s *driver,
|
|
FAR struct usbdev_s *dev)
|
|
{
|
|
FAR struct usbdev_adb_s *priv = &((FAR struct adb_driver_s *)driver)->dev;
|
|
|
|
usbtrace(TRACE_CLASSSUSPEND, 0);
|
|
|
|
if (priv->config != USBADB_CONFIGIDNONE)
|
|
{
|
|
adb_char_on_connect(priv, 0);
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: usbclass_resume
|
|
*
|
|
* Description:
|
|
* Handle the USB resume event.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void usbclass_resume(FAR struct usbdevclass_driver_s *driver,
|
|
FAR struct usbdev_s *dev)
|
|
{
|
|
FAR struct usbdev_adb_s *priv = &((FAR struct adb_driver_s *)driver)->dev;
|
|
|
|
usbtrace(TRACE_CLASSRESUME, 0);
|
|
|
|
if (priv->config != USBADB_CONFIGIDNONE)
|
|
{
|
|
adb_char_on_connect(priv, 1);
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: usbclass_classobject
|
|
*
|
|
* Description:
|
|
* Register USB driver and return the class object.
|
|
*
|
|
* Returned Value:
|
|
* 0 on success, negative error code on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int usbclass_classobject(int minor,
|
|
FAR struct usbdev_devinfo_s *devinfo,
|
|
FAR struct usbdevclass_driver_s **classdev)
|
|
{
|
|
int ret;
|
|
FAR struct adb_driver_s *alloc;
|
|
|
|
alloc = (FAR struct adb_driver_s *)
|
|
kmm_zalloc(sizeof(struct adb_driver_s));
|
|
|
|
if (!alloc)
|
|
{
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_ALLOCDEVSTRUCT), 0);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* Initialize the USB class driver structure */
|
|
|
|
#ifdef CONFIG_USBDEV_DUALSPEED
|
|
alloc->drvr.speed = USB_SPEED_HIGH;
|
|
#else
|
|
alloc->drvr.speed = USB_SPEED_FULL;
|
|
#endif
|
|
|
|
alloc->drvr.ops = &g_adb_driverops;
|
|
|
|
sq_init(&alloc->dev.rxpending);
|
|
sq_init(&alloc->dev.txfree);
|
|
|
|
#ifdef CONFIG_USBADB_COMPOSITE
|
|
/* Save the caller provided device description (composite only) */
|
|
|
|
memcpy(&alloc->dev.devinfo, devinfo,
|
|
sizeof(struct usbdev_devinfo_s));
|
|
#endif
|
|
|
|
/* Initialize the char device structure */
|
|
|
|
nxsem_init(&alloc->dev.exclsem, 0, 1);
|
|
alloc->dev.crefs = 0;
|
|
|
|
/* Register char device driver */
|
|
|
|
/* FIXME use minor in device name */
|
|
|
|
ret = register_driver(USBADB_CHARDEV_PATH, &g_adb_fops, 0666, &alloc->dev);
|
|
if (ret < 0)
|
|
{
|
|
uerr("Failed to register char device");
|
|
goto exit_free_driver;
|
|
}
|
|
|
|
*classdev = &alloc->drvr;
|
|
return OK;
|
|
|
|
exit_free_driver:
|
|
kmm_free(alloc);
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: usbclass_uninitialize
|
|
*
|
|
* Description:
|
|
* Free allocated memory
|
|
*
|
|
* Returned Value:
|
|
* 0 on success, negative error code on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void usbclass_uninitialize(FAR struct usbdevclass_driver_s *classdev)
|
|
{
|
|
FAR struct adb_driver_s *alloc = container_of(
|
|
classdev, FAR struct adb_driver_s, drvr);
|
|
|
|
#warning FIXME Maybe missing logic here
|
|
|
|
unregister_driver(USBADB_CHARDEV_PATH);
|
|
|
|
kmm_free(alloc);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Char Device Driver Methods
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: adb_char_notify_readers
|
|
*
|
|
* Description:
|
|
* Notify threads waiting to read device. This function must be called
|
|
* with interrupt disabled.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void adb_char_notify_readers(FAR struct usbdev_adb_s *priv)
|
|
{
|
|
/* Notify all of the waiting readers */
|
|
|
|
adb_char_waiter_sem_t *cur_sem = priv->rdsems;
|
|
while (cur_sem != NULL)
|
|
{
|
|
nxsem_post(&cur_sem->sem);
|
|
cur_sem = cur_sem->next;
|
|
}
|
|
|
|
priv->rdsems = NULL;
|
|
|
|
/* Notify all poll/select waiters */
|
|
|
|
adb_char_pollnotify(priv, POLLIN);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: adb_char_pollnotify
|
|
*
|
|
* Description:
|
|
* Notify threads waiting for device event. This function must be called
|
|
* with interrupt disabled.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void adb_char_pollnotify(FAR struct usbdev_adb_s *dev,
|
|
pollevent_t eventset)
|
|
{
|
|
FAR struct pollfd *fds;
|
|
int i;
|
|
|
|
for (i = 0; i < CONFIG_USBADB_NPOLLWAITERS; i++)
|
|
{
|
|
fds = dev->fds[i];
|
|
if (fds)
|
|
{
|
|
fds->revents |= eventset & (fds->events | POLLERR | POLLHUP);
|
|
|
|
if (fds->revents != 0)
|
|
{
|
|
nxsem_post(fds->sem);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: adb_char_open
|
|
*
|
|
* Description:
|
|
* Open adb device. Only one open() instance is supported.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int adb_char_open(FAR struct file *filep)
|
|
{
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct usbdev_adb_s *priv = inode->i_private;
|
|
int ret;
|
|
|
|
/* Get exclusive access to the device structures */
|
|
|
|
ret = nxsem_wait(&priv->exclsem);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
finfo("entry: <%s> %d\n", inode->i_name, priv->crefs);
|
|
|
|
priv->crefs += 1;
|
|
|
|
assert(priv->crefs != 0);
|
|
|
|
nxsem_post(&priv->exclsem);
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: adb_char_close
|
|
*
|
|
* Description:
|
|
* Close adb device.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int adb_char_close(FAR struct file *filep)
|
|
{
|
|
int ret;
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct usbdev_adb_s *priv = inode->i_private;
|
|
|
|
/* Get exclusive access to the device structures */
|
|
|
|
ret = nxsem_wait(&priv->exclsem);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
finfo("entry: <%s> %d\n", inode->i_name, priv->crefs);
|
|
|
|
priv->crefs -= 1;
|
|
|
|
assert(priv->crefs >= 0);
|
|
|
|
nxsem_post(&priv->exclsem);
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: adb_char_blocking_io
|
|
*
|
|
* Description:
|
|
* Handle read/write blocking io.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int adb_char_blocking_io(FAR struct usbdev_adb_s *priv,
|
|
FAR adb_char_waiter_sem_t *sem,
|
|
FAR adb_char_waiter_sem_t **slist,
|
|
FAR struct sq_queue_s *queue)
|
|
{
|
|
int ret;
|
|
irqstate_t flags;
|
|
|
|
flags = enter_critical_section();
|
|
|
|
if (!sq_empty(queue))
|
|
{
|
|
/* Queue not empty after all */
|
|
|
|
leave_critical_section(flags);
|
|
return 0;
|
|
}
|
|
|
|
/* Register waiter semaphore */
|
|
|
|
sem->next = *slist;
|
|
*slist = sem;
|
|
|
|
leave_critical_section(flags);
|
|
|
|
nxsem_post(&priv->exclsem);
|
|
|
|
/* Wait for USB device to notify */
|
|
|
|
ret = nxsem_wait(&sem->sem);
|
|
|
|
if (ret < 0)
|
|
{
|
|
/* Interrupted wait, unregister semaphore
|
|
* TODO ensure that exclsem wait does not fail (ECANCELED)
|
|
*/
|
|
|
|
nxsem_wait_uninterruptible(&priv->exclsem);
|
|
|
|
flags = enter_critical_section();
|
|
|
|
adb_char_waiter_sem_t *cur_sem = *slist;
|
|
|
|
if (cur_sem == sem)
|
|
{
|
|
*slist = sem->next;
|
|
}
|
|
else
|
|
{
|
|
while (cur_sem)
|
|
{
|
|
if (cur_sem->next == sem)
|
|
{
|
|
cur_sem->next = sem->next;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
leave_critical_section(flags);
|
|
nxsem_post(&priv->exclsem);
|
|
return ret;
|
|
}
|
|
|
|
return nxsem_wait(&priv->exclsem);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: adb_char_read
|
|
*
|
|
* Description:
|
|
* Read adb device.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static ssize_t adb_char_read(FAR struct file *filep, FAR char *buffer,
|
|
size_t len)
|
|
{
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct usbdev_adb_s *priv = inode->i_private;
|
|
ssize_t ret;
|
|
size_t retlen;
|
|
irqstate_t flags;
|
|
|
|
assert(len > 0 && buffer != NULL);
|
|
|
|
if (priv->config == USBADB_CONFIGIDNONE)
|
|
{
|
|
/* USB device not connected */
|
|
|
|
return -EPIPE;
|
|
}
|
|
|
|
ret = nxsem_wait(&priv->exclsem);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
/* Check for available data */
|
|
|
|
if (sq_empty(&priv->rxpending))
|
|
{
|
|
if (filep->f_oflags & O_NONBLOCK)
|
|
{
|
|
nxsem_post(&priv->exclsem);
|
|
return -EAGAIN;
|
|
}
|
|
|
|
adb_char_waiter_sem_t sem;
|
|
nxsem_init(&sem.sem, 0, 0);
|
|
nxsem_set_protocol(&sem.sem, SEM_PRIO_NONE);
|
|
|
|
do
|
|
{
|
|
/* RX queue seems empty. Check again with interrupts disabled */
|
|
|
|
ret = adb_char_blocking_io(
|
|
priv, &sem, &priv->rdsems, &priv->rxpending);
|
|
if (ret < 0)
|
|
{
|
|
nxsem_destroy(&sem.sem);
|
|
return ret;
|
|
}
|
|
}
|
|
while (sq_empty(&priv->rxpending));
|
|
|
|
/* RX queue not empty and exclsem locked so we are the only reader */
|
|
|
|
nxsem_destroy(&sem.sem);
|
|
}
|
|
|
|
/* Device ready for read */
|
|
|
|
retlen = 0;
|
|
|
|
while (!sq_empty(&priv->rxpending) && len > 0)
|
|
{
|
|
FAR struct usbadb_rdreq_s *rdcontainer;
|
|
uint16_t reqlen;
|
|
|
|
/* Process each packet in the priv->rxpending list */
|
|
|
|
rdcontainer = container_of(
|
|
sq_peek(&priv->rxpending),
|
|
struct usbadb_rdreq_s,
|
|
node);
|
|
|
|
reqlen = rdcontainer->req->xfrd - rdcontainer->offset;
|
|
|
|
if (reqlen > len)
|
|
{
|
|
/* Output buffer full */
|
|
|
|
memcpy(&buffer[retlen],
|
|
&rdcontainer->req->buf[rdcontainer->offset],
|
|
len);
|
|
rdcontainer->offset += len;
|
|
retlen += len;
|
|
break;
|
|
}
|
|
|
|
memcpy(&buffer[retlen],
|
|
&rdcontainer->req->buf[rdcontainer->offset],
|
|
reqlen);
|
|
retlen += reqlen;
|
|
len -= reqlen;
|
|
|
|
/* The entire packet was processed and may be removed from the
|
|
* pending RX list.
|
|
*/
|
|
|
|
/* FIXME use atomic queue primitives ? */
|
|
|
|
flags = enter_critical_section();
|
|
sq_remfirst(&priv->rxpending);
|
|
leave_critical_section(flags);
|
|
|
|
ret = usb_adb_submit_rdreq(priv, rdcontainer);
|
|
|
|
if (ret != OK)
|
|
{
|
|
/* TODO handle error */
|
|
|
|
PANIC();
|
|
}
|
|
}
|
|
|
|
nxsem_post(&priv->exclsem);
|
|
return retlen;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: adb_char_write
|
|
*
|
|
* Description:
|
|
* Write adb device.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static ssize_t adb_char_write(FAR struct file *filep,
|
|
FAR const char *buffer, size_t len)
|
|
{
|
|
int ret;
|
|
int wlen;
|
|
FAR struct usbdev_req_s *req;
|
|
FAR struct usbadb_wrreq_s *wrcontainer;
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct usbdev_adb_s *priv = inode->i_private;
|
|
|
|
irqstate_t flags;
|
|
|
|
if (priv->config == USBADB_CONFIGIDNONE)
|
|
{
|
|
/* USB device not connected */
|
|
|
|
return -EPIPE;
|
|
}
|
|
|
|
ret = nxsem_wait(&priv->exclsem);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
/* Check for available write request */
|
|
|
|
if (sq_empty(&priv->txfree))
|
|
{
|
|
if (filep->f_oflags & O_NONBLOCK)
|
|
{
|
|
ret = -EAGAIN;
|
|
goto errout;
|
|
}
|
|
|
|
adb_char_waiter_sem_t sem;
|
|
nxsem_init(&sem.sem, 0, 0);
|
|
nxsem_set_protocol(&sem.sem, SEM_PRIO_NONE);
|
|
|
|
do
|
|
{
|
|
/* TX queue seems empty. Check again with interrupts disabled */
|
|
|
|
ret = adb_char_blocking_io(
|
|
priv, &sem, &priv->wrsems, &priv->txfree);
|
|
if (ret < 0)
|
|
{
|
|
nxsem_destroy(&sem.sem);
|
|
return ret;
|
|
}
|
|
}
|
|
while (sq_empty(&priv->txfree));
|
|
|
|
nxsem_destroy(&sem.sem);
|
|
}
|
|
|
|
/* Device ready for write */
|
|
|
|
wlen = 0;
|
|
|
|
while (len > 0 && !sq_empty(&priv->txfree))
|
|
{
|
|
int cur_len;
|
|
|
|
/* Get available TX request slot */
|
|
|
|
flags = enter_critical_section();
|
|
|
|
wrcontainer = container_of(
|
|
sq_remfirst(&priv->txfree),
|
|
struct usbadb_wrreq_s,
|
|
node);
|
|
|
|
leave_critical_section(flags);
|
|
|
|
req = wrcontainer->req;
|
|
|
|
/* Fill the request with data */
|
|
|
|
if (len > priv->epbulkin->maxpacket)
|
|
{
|
|
cur_len = priv->epbulkin->maxpacket;
|
|
}
|
|
else
|
|
{
|
|
cur_len = len;
|
|
}
|
|
|
|
memcpy(req->buf, &buffer[wlen], cur_len);
|
|
|
|
/* Then submit the request to the endpoint */
|
|
|
|
req->len = cur_len;
|
|
req->flags = 0;
|
|
req->priv = wrcontainer;
|
|
ret = EP_SUBMIT(priv->epbulkin, req);
|
|
|
|
if (ret != OK)
|
|
{
|
|
/* TODO add tx request back in txfree queue */
|
|
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_SUBMITFAIL),
|
|
(uint16_t)-ret);
|
|
PANIC();
|
|
break;
|
|
}
|
|
|
|
wlen += cur_len;
|
|
len -= cur_len;
|
|
}
|
|
|
|
assert(wlen > 0);
|
|
ret = wlen;
|
|
|
|
errout:
|
|
nxsem_post(&priv->exclsem);
|
|
return ret;
|
|
}
|
|
|
|
static int adb_char_ioctl(FAR struct file *filep, int cmd,
|
|
unsigned long arg)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int adb_char_poll(FAR struct file *filep, FAR struct pollfd *fds,
|
|
bool setup)
|
|
{
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct usbdev_adb_s *priv = inode->i_private;
|
|
int ret;
|
|
int i;
|
|
pollevent_t eventset;
|
|
irqstate_t flags;
|
|
|
|
ret = nxsem_wait(&priv->exclsem);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
ret = OK;
|
|
|
|
if (!setup)
|
|
{
|
|
/* This is a request to tear down the poll. */
|
|
|
|
FAR struct pollfd **slot = (FAR struct pollfd **)fds->priv;
|
|
|
|
/* Remove all memory of the poll setup */
|
|
|
|
*slot = NULL;
|
|
fds->priv = NULL;
|
|
goto errout;
|
|
}
|
|
|
|
/* FIXME only parts of this function required interrupt disabled */
|
|
|
|
flags = enter_critical_section();
|
|
|
|
/* This is a request to set up the poll. Find an available
|
|
* slot for the poll structure reference
|
|
*/
|
|
|
|
for (i = 0; i < CONFIG_USBADB_NPOLLWAITERS; i++)
|
|
{
|
|
/* Find an available slot */
|
|
|
|
if (!priv->fds[i])
|
|
{
|
|
/* Bind the poll structure and this slot */
|
|
|
|
priv->fds[i] = fds;
|
|
fds->priv = &priv->fds[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i >= CONFIG_USBADB_NPOLLWAITERS)
|
|
{
|
|
fds->priv = NULL;
|
|
ret = -EBUSY;
|
|
goto exit_leave_critical;
|
|
}
|
|
|
|
eventset = 0;
|
|
|
|
/* Notify the POLLOUT event if at least one request is available */
|
|
|
|
if (!sq_empty(&priv->txfree))
|
|
{
|
|
eventset |= POLLOUT;
|
|
}
|
|
|
|
/* Notify the POLLIN event if at least one read request is pending */
|
|
|
|
if (!sq_empty(&priv->rxpending))
|
|
{
|
|
eventset |= POLLIN;
|
|
}
|
|
|
|
if (eventset)
|
|
{
|
|
adb_char_pollnotify(priv, eventset);
|
|
}
|
|
|
|
exit_leave_critical:
|
|
leave_critical_section(flags);
|
|
errout:
|
|
nxsem_post(&priv->exclsem);
|
|
return ret;
|
|
}
|
|
|
|
static void adb_char_on_connect(FAR struct usbdev_adb_s *priv, int connect)
|
|
{
|
|
irqstate_t flags;
|
|
adb_char_waiter_sem_t *cur_sem;
|
|
|
|
flags = enter_critical_section();
|
|
|
|
if (connect)
|
|
{
|
|
/* Notify poll/select with POLLIN */
|
|
|
|
adb_char_pollnotify(priv, POLLIN);
|
|
}
|
|
else
|
|
{
|
|
/* Notify all of the char device waiting readers */
|
|
|
|
cur_sem = priv->rdsems;
|
|
while (cur_sem != NULL)
|
|
{
|
|
nxsem_post(&cur_sem->sem);
|
|
cur_sem = cur_sem->next;
|
|
}
|
|
|
|
priv->rdsems = NULL;
|
|
|
|
/* Notify all of the char device waiting writers */
|
|
|
|
cur_sem = priv->wrsems;
|
|
while (cur_sem != NULL)
|
|
{
|
|
nxsem_post(&cur_sem->sem);
|
|
cur_sem = cur_sem->next;
|
|
}
|
|
|
|
priv->wrsems = NULL;
|
|
|
|
/* Notify all poll/select waiters that a hangup occurred */
|
|
|
|
adb_char_pollnotify(priv, (POLLERR | POLLHUP));
|
|
}
|
|
|
|
leave_critical_section(flags);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: usbdev_adb_initialize
|
|
*
|
|
* Description:
|
|
* Initialize the Android Debug Bridge USB device driver.
|
|
*
|
|
* Returned Value:
|
|
* 0 on success, -errno on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_USBADB_COMPOSITE
|
|
int usbdev_adb_initialize(void)
|
|
{
|
|
int ret;
|
|
FAR struct usbdevclass_driver_s *classdev;
|
|
FAR struct adb_driver_s *drvr;
|
|
|
|
ret = usbclass_classobject(0, NULL, &classdev);
|
|
if (ret)
|
|
{
|
|
nerr("usbclass_classobject failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
drvr = (FAR struct adb_driver_s *)classdev;
|
|
|
|
ret = usbdev_register(&drvr->drvr);
|
|
if (ret)
|
|
{
|
|
nerr("usbdev_register failed: %d\n", ret);
|
|
usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_DEVREGISTER), (uint16_t)-ret);
|
|
usbclass_uninitialize(classdev);
|
|
return ret;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: usbdev_adb_get_composite_devdesc
|
|
*
|
|
* Description:
|
|
* Helper function to fill in some constants into the composite
|
|
* configuration struct.
|
|
*
|
|
* Input Parameters:
|
|
* dev - Pointer to the configuration struct we should fill
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
#if defined(CONFIG_USBDEV_COMPOSITE) && defined(CONFIG_USBADB_COMPOSITE)
|
|
void usbdev_adb_get_composite_devdesc(struct composite_devdesc_s *dev)
|
|
{
|
|
memset(dev, 0, sizeof(struct composite_devdesc_s));
|
|
|
|
dev->mkconfdesc = usbclass_mkcfgdesc;
|
|
dev->mkstrdesc = usbclass_mkstrdesc;
|
|
dev->classobject = usbclass_classobject;
|
|
dev->uninitialize = usbclass_uninitialize;
|
|
dev->nconfigs = USBADB_NCONFIGS;
|
|
dev->configid = 1;
|
|
dev->cfgdescsize = sizeof(g_adb_cfgdesc)+2*USB_SIZEOF_EPDESC;
|
|
dev->devinfo.ninterfaces = 1;
|
|
dev->devinfo.nstrings = USBADB_NSTRIDS;
|
|
dev->devinfo.nendpoints = USBADB_NUM_EPS;
|
|
}
|
|
#endif
|