Move out common architecture-independent core definitions into the appropriate core...
[pub/lufa.git] / LUFA / Drivers / USB / Core / Host.h
index 7b5b501..4a12f1a 100644 (file)
        /* Includes: */\r
                #include "../../../Common/Common.h"\r
 \r
+       /* Preprocessor Checks: */\r
+               #if !defined(__INCLUDE_FROM_USB_DRIVER)\r
+                       #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.\r
+               #endif\r
+\r
+       /* Public Interface - May be used in end-application: */\r
+               /* Enums: */\r
+                       /** Enum for the various states of the USB Host state machine. Only some states are\r
+                        *  implemented in the LUFA library - other states are left to the user to implement.\r
+                        *\r
+                        *  For information on each possible USB host state, refer to the USB 2.0 specification.\r
+                        *  Several of the USB host states are broken up further into multiple smaller sub-states,\r
+                        *  so that they can be internally implemented inside the library in an efficient manner.\r
+                        *\r
+                        *  \see \ref USB_HostState, which stores the current host state machine state.\r
+                        */\r
+                       enum USB_Host_States_t\r
+                       {\r
+                               HOST_STATE_WaitForDeviceRemoval         = 0,  /**< Internally implemented by the library. This state can be\r
+                                                                              *   used by the library to wait until the attached device is\r
+                                                                              *   removed by the user - useful for when an error occurs or\r
+                                                                              *   further communication with the device is not needed. This\r
+                                                                              *   allows for other code to run while the state machine is\r
+                                                                              *   effectively disabled.\r
+                                                                              */\r
+                               HOST_STATE_WaitForDevice                = 1,  /**< Internally implemented by the library. This state indicates\r
+                                                                              *   that the stack is waiting for an interval to elapse before\r
+                                                                              *   continuing with the next step of the device enumeration\r
+                                                                              *   process.\r
+                                                                              *\r
+                                                                              *   \note Do not manually change to this state in the user code.\r
+                                                                              */\r
+                               HOST_STATE_Unattached                   = 2,  /**< Internally implemented by the library. This state indicates\r
+                                                                              *   that the host state machine is waiting for a device to be\r
+                                                                              *   attached so that it can start the enumeration process.\r
+                                                                              *\r
+                                                                              *   \note Do not manually change to this state in the user code.\r
+                                                                              */\r
+                               HOST_STATE_Powered                      = 3,  /**< Internally implemented by the library. This state indicates\r
+                                                                              *   that a device has been attached, and the library's internals\r
+                                                                              *   are being configured to begin the enumeration process.\r
+                                                                              *\r
+                                                                              *   \note Do not manually change to this state in the user code.\r
+                                                                              */\r
+                               HOST_STATE_Powered_WaitForDeviceSettle  = 4,  /**< Internally implemented by the library. This state indicates\r
+                                                                              *   that the stack is waiting for the initial settling period to\r
+                                                                              *   elapse before beginning the enumeration process.\r
+                                                                              *\r
+                                                                              *   \note Do not manually change to this state in the user code.\r
+                                                                              */\r
+                               HOST_STATE_Powered_WaitForConnect       = 5,  /**< Internally implemented by the library. This state indicates\r
+                                                                              *   that the stack is waiting for a connection event from the USB\r
+                                                                              *   controller to indicate a valid USB device has been attached to\r
+                                                                              *   the bus and is ready to be enumerated.\r
+                                                                              *\r
+                                                                              *   \note Do not manually change to this state in the user code.\r
+                                                                              */\r
+                               HOST_STATE_Powered_DoReset              = 6,  /**< Internally implemented by the library. This state indicates\r
+                                                                              *   that a valid USB device has been attached, and that it is\r
+                                                                              *   will now be reset to ensure it is ready for enumeration.\r
+                                                                              *\r
+                                                                              *   \note Do not manually change to this state in the user code.\r
+                                                                              */\r
+                               HOST_STATE_Powered_ConfigPipe           = 7,  /**< Internally implemented by the library. This state indicates\r
+                                                                              *   that the attached device is currently powered and reset, and\r
+                                                                              *   that the control pipe is now being configured by the stack.\r
+                                                                              *\r
+                                                                              *   \note Do not manually change to this state in the user code.\r
+                                                                              */\r
+                               HOST_STATE_Default                      = 8,  /**< Internally implemented by the library. This state indicates\r
+                                                                              *   that the stack is currently retrieving the control endpoint's\r
+                                                                              *   size from the device, so that the control pipe can be altered\r
+                                                                              *   to match.\r
+                                                                              *\r
+                                                                              *   \note Do not manually change to this state in the user code.\r
+                                                                              */\r
+                               HOST_STATE_Default_PostReset            = 9,  /**< Internally implemented by the library. This state indicates that\r
+                                                                              *   the control pipe is being reconfigured to match the retrieved\r
+                                                                              *   control endpoint size from the device, and the device's USB bus\r
+                                                                              *   address is being set.\r
+                                                                              *\r
+                                                                              *   \note Do not manually change to this state in the user code.\r
+                                                                              */\r
+                               HOST_STATE_Default_PostAddressSet       = 10, /**< Internally implemented by the library. This state indicates that\r
+                                                                              *   the device's address has now been set, and the stack is has now\r
+                                                                              *   completed the device enumeration process. This state causes the\r
+                                                                              *   stack to change the current USB device address to that set for\r
+                                                                              *   the connected device, before progressing to the user-implemented\r
+                                                                              *   \ref HOST_STATE_Addressed state for further communications.\r
+                                                                              *\r
+                                                                              *   \note Do not manually change to this state in the user code.\r
+                                                                              */\r
+                               HOST_STATE_Addressed                    = 11, /**< May be implemented by the user project. This state should\r
+                                                                              *   set the device configuration before progressing to the\r
+                                                                              *   \ref HOST_STATE_Configured state. Other processing (such as the\r
+                                                                              *   retrieval and processing of the device descriptor) should also\r
+                                                                              *   be placed in this state.\r
+                                                                              */\r
+                               HOST_STATE_Configured                   = 12, /**< May be implemented by the user project. This state should implement the\r
+                                                                              *   actual work performed on the attached device and changed to the\r
+                                                                              *   \ref HOST_STATE_Suspended or \ref HOST_STATE_WaitForDeviceRemoval states as needed.\r
+                                                                              */\r
+                               HOST_STATE_Suspended                    = 15, /**< May be implemented by the user project. This state should be maintained\r
+                                                                              *   while the bus is suspended, and changed to either the \ref HOST_STATE_Configured\r
+                                                                              *   (after resuming the bus with the USB_Host_ResumeBus() macro) or the\r
+                                                                              *   \ref HOST_STATE_WaitForDeviceRemoval states as needed.\r
+                                                                              */\r
+                       };\r
+\r
+       /* Architecture Includes: */\r
                #if (ARCH == ARCH_AVR8)\r
                        #include "AVR8/Host_AVR8.h"\r
                #elif (ARCH == ARCH_UC3B)\r
                        #include "UC3B/Host_UC3B.h"\r
                #endif\r
 \r
-       /* Preprocessor Checks: */\r
-               #if !defined(__INCLUDE_FROM_USB_DRIVER)\r
-                       #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.\r
-               #endif\r
-\r
 #endif\r
 \r
 /** @} */\r