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      1 /*
      2  * darwin backend for libusbx 1.0
      3  * Copyright  2008-2013 Nathan Hjelm <hjelmn (at) users.sourceforge.net>
      4  *
      5  * This library is free software; you can redistribute it and/or
      6  * modify it under the terms of the GNU Lesser General Public
      7  * License as published by the Free Software Foundation; either
      8  * version 2.1 of the License, or (at your option) any later version.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Lesser General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Lesser General Public
     16  * License along with this library; if not, write to the Free Software
     17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     18  */
     19 
     20 #if !defined(LIBUSB_DARWIN_H)
     21 #define LIBUSB_DARWIN_H
     22 
     23 #include "libusbi.h"
     24 
     25 #include <IOKit/IOTypes.h>
     26 #include <IOKit/IOCFBundle.h>
     27 #include <IOKit/usb/IOUSBLib.h>
     28 #include <IOKit/IOCFPlugIn.h>
     29 
     30 /* IOUSBInterfaceInferface */
     31 #if defined (kIOUSBInterfaceInterfaceID550)
     32 
     33 #define usb_interface_t IOUSBInterfaceInterface550
     34 #define InterfaceInterfaceID kIOUSBInterfaceInterfaceID550
     35 #define InterfaceVersion 550
     36 
     37 #elif defined (kIOUSBInterfaceInterfaceID500)
     38 
     39 #define usb_interface_t IOUSBInterfaceInterface500
     40 #define InterfaceInterfaceID kIOUSBInterfaceInterfaceID500
     41 #define InterfaceVersion 500
     42 
     43 #elif defined (kIOUSBInterfaceInterfaceID300)
     44 
     45 #define usb_interface_t IOUSBInterfaceInterface300
     46 #define InterfaceInterfaceID kIOUSBInterfaceInterfaceID300
     47 #define InterfaceVersion 300
     48 
     49 #elif defined (kIOUSBInterfaceInterfaceID245)
     50 
     51 #define usb_interface_t IOUSBInterfaceInterface245
     52 #define InterfaceInterfaceID kIOUSBInterfaceInterfaceID245
     53 #define InterfaceVersion 245
     54 
     55 #elif defined (kIOUSBInterfaceInterfaceID220)
     56 
     57 #define usb_interface_t IOUSBInterfaceInterface220
     58 #define InterfaceInterfaceID kIOUSBInterfaceInterfaceID220
     59 #define InterfaceVersion 220
     60 
     61 #else
     62 
     63 #error "IOUSBFamily is too old. Please upgrade your OS"
     64 
     65 #endif
     66 
     67 /* IOUSBDeviceInterface */
     68 #if defined (kIOUSBDeviceInterfaceID500)
     69 
     70 #define usb_device_t    IOUSBDeviceInterface500
     71 #define DeviceInterfaceID kIOUSBDeviceInterfaceID500
     72 #define DeviceVersion 500
     73 
     74 #elif defined (kIOUSBDeviceInterfaceID320)
     75 
     76 #define usb_device_t    IOUSBDeviceInterface320
     77 #define DeviceInterfaceID kIOUSBDeviceInterfaceID320
     78 #define DeviceVersion 320
     79 
     80 #elif defined (kIOUSBDeviceInterfaceID300)
     81 
     82 #define usb_device_t    IOUSBDeviceInterface300
     83 #define DeviceInterfaceID kIOUSBDeviceInterfaceID300
     84 #define DeviceVersion 300
     85 
     86 #elif defined (kIOUSBDeviceInterfaceID245)
     87 
     88 #define usb_device_t    IOUSBDeviceInterface245
     89 #define DeviceInterfaceID kIOUSBDeviceInterfaceID245
     90 #define DeviceVersion 245
     91 
     92 #elif defined (kIOUSBDeviceInterfaceID220)
     93 #define usb_device_t    IOUSBDeviceInterface197
     94 #define DeviceInterfaceID kIOUSBDeviceInterfaceID197
     95 #define DeviceVersion 197
     96 
     97 #else
     98 
     99 #error "IOUSBFamily is too old. Please upgrade your OS"
    100 
    101 #endif
    102 
    103 #if !defined(IO_OBJECT_NULL)
    104 #define IO_OBJECT_NULL ((io_object_t) 0)
    105 #endif
    106 
    107 typedef IOCFPlugInInterface *io_cf_plugin_ref_t;
    108 typedef IONotificationPortRef io_notification_port_t;
    109 
    110 /* private structures */
    111 struct darwin_cached_device {
    112   struct list_head      list;
    113   IOUSBDeviceDescriptor dev_descriptor;
    114   UInt32                location;
    115   UInt64                parent_session;
    116   UInt64                session;
    117   UInt16                address;
    118   char                  sys_path[21];
    119   usb_device_t        **device;
    120   int                   open_count;
    121   UInt8                 first_config, active_config, port;
    122   int                   can_enumerate;
    123   int                   refcount;
    124 };
    125 
    126 struct darwin_device_priv {
    127   struct darwin_cached_device *dev;
    128 };
    129 
    130 struct darwin_device_handle_priv {
    131   int                  is_open;
    132   CFRunLoopSourceRef   cfSource;
    133   int                  fds[2];
    134 
    135   struct darwin_interface {
    136     usb_interface_t    **interface;
    137     uint8_t              num_endpoints;
    138     CFRunLoopSourceRef   cfSource;
    139     uint64_t             frames[256];
    140     uint8_t            endpoint_addrs[USB_MAXENDPOINTS];
    141   } interfaces[USB_MAXINTERFACES];
    142 };
    143 
    144 struct darwin_transfer_priv {
    145   /* Isoc */
    146   IOUSBIsocFrame *isoc_framelist;
    147   int num_iso_packets;
    148 
    149   /* Control */
    150   IOUSBDevRequestTO req;
    151 
    152   /* Bulk */
    153 };
    154 
    155 /* structure for signaling io completion */
    156 struct darwin_msg_async_io_complete {
    157   struct usbi_transfer *itransfer;
    158   IOReturn result;
    159   UInt32 size;
    160 };
    161 
    162 #endif
    163