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| author | Dean Camera <dean@fourwalledcubicle.com> | 2011-02-27 14:39:49 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2011-02-27 14:39:49 +0000 |
| commit | 381dd0d49079dfc1e356eacbb061853c8f365165 (patch) | |
| tree | 233019a8936073c34e95f59939ea19d536eb2bb4 /LUFA/Drivers/USB/Core/Host.h | |
| parent | f3f481183aa201739a84f847769dcba50166eb98 (diff) | |
| download | lufa-381dd0d49079dfc1e356eacbb061853c8f365165.tar.gz lufa-381dd0d49079dfc1e356eacbb061853c8f365165.tar.bz2 lufa-381dd0d49079dfc1e356eacbb061853c8f365165.zip | |
Move out common architecture-independent core definitions into the appropriate core dispatch header files.
Diffstat (limited to 'LUFA/Drivers/USB/Core/Host.h')
| -rw-r--r-- | LUFA/Drivers/USB/Core/Host.h | 115 |
1 files changed, 110 insertions, 5 deletions
diff --git a/LUFA/Drivers/USB/Core/Host.h b/LUFA/Drivers/USB/Core/Host.h index 7b5b50145..4a12f1ac3 100644 --- a/LUFA/Drivers/USB/Core/Host.h +++ b/LUFA/Drivers/USB/Core/Host.h @@ -52,17 +52,122 @@ /* Includes: */
#include "../../../Common/Common.h"
+ /* Preprocessor Checks: */
+ #if !defined(__INCLUDE_FROM_USB_DRIVER)
+ #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
+ #endif
+
+ /* Public Interface - May be used in end-application: */
+ /* Enums: */
+ /** Enum for the various states of the USB Host state machine. Only some states are
+ * implemented in the LUFA library - other states are left to the user to implement.
+ *
+ * For information on each possible USB host state, refer to the USB 2.0 specification.
+ * Several of the USB host states are broken up further into multiple smaller sub-states,
+ * so that they can be internally implemented inside the library in an efficient manner.
+ *
+ * \see \ref USB_HostState, which stores the current host state machine state.
+ */
+ enum USB_Host_States_t
+ {
+ HOST_STATE_WaitForDeviceRemoval = 0, /**< Internally implemented by the library. This state can be
+ * used by the library to wait until the attached device is
+ * removed by the user - useful for when an error occurs or
+ * further communication with the device is not needed. This
+ * allows for other code to run while the state machine is
+ * effectively disabled.
+ */
+ HOST_STATE_WaitForDevice = 1, /**< Internally implemented by the library. This state indicates
+ * that the stack is waiting for an interval to elapse before
+ * continuing with the next step of the device enumeration
+ * process.
+ *
+ * \note Do not manually change to this state in the user code.
+ */
+ HOST_STATE_Unattached = 2, /**< Internally implemented by the library. This state indicates
+ * that the host state machine is waiting for a device to be
+ * attached so that it can start the enumeration process.
+ *
+ * \note Do not manually change to this state in the user code.
+ */
+ HOST_STATE_Powered = 3, /**< Internally implemented by the library. This state indicates
+ * that a device has been attached, and the library's internals
+ * are being configured to begin the enumeration process.
+ *
+ * \note Do not manually change to this state in the user code.
+ */
+ HOST_STATE_Powered_WaitForDeviceSettle = 4, /**< Internally implemented by the library. This state indicates
+ * that the stack is waiting for the initial settling period to
+ * elapse before beginning the enumeration process.
+ *
+ * \note Do not manually change to this state in the user code.
+ */
+ HOST_STATE_Powered_WaitForConnect = 5, /**< Internally implemented by the library. This state indicates
+ * that the stack is waiting for a connection event from the USB
+ * controller to indicate a valid USB device has been attached to
+ * the bus and is ready to be enumerated.
+ *
+ * \note Do not manually change to this state in the user code.
+ */
+ HOST_STATE_Powered_DoReset = 6, /**< Internally implemented by the library. This state indicates
+ * that a valid USB device has been attached, and that it is
+ * will now be reset to ensure it is ready for enumeration.
+ *
+ * \note Do not manually change to this state in the user code.
+ */
+ HOST_STATE_Powered_ConfigPipe = 7, /**< Internally implemented by the library. This state indicates
+ * that the attached device is currently powered and reset, and
+ * that the control pipe is now being configured by the stack.
+ *
+ * \note Do not manually change to this state in the user code.
+ */
+ HOST_STATE_Default = 8, /**< Internally implemented by the library. This state indicates
+ * that the stack is currently retrieving the control endpoint's
+ * size from the device, so that the control pipe can be altered
+ * to match.
+ *
+ * \note Do not manually change to this state in the user code.
+ */
+ HOST_STATE_Default_PostReset = 9, /**< Internally implemented by the library. This state indicates that
+ * the control pipe is being reconfigured to match the retrieved
+ * control endpoint size from the device, and the device's USB bus
+ * address is being set.
+ *
+ * \note Do not manually change to this state in the user code.
+ */
+ HOST_STATE_Default_PostAddressSet = 10, /**< Internally implemented by the library. This state indicates that
+ * the device's address has now been set, and the stack is has now
+ * completed the device enumeration process. This state causes the
+ * stack to change the current USB device address to that set for
+ * the connected device, before progressing to the user-implemented
+ * \ref HOST_STATE_Addressed state for further communications.
+ *
+ * \note Do not manually change to this state in the user code.
+ */
+ HOST_STATE_Addressed = 11, /**< May be implemented by the user project. This state should
+ * set the device configuration before progressing to the
+ * \ref HOST_STATE_Configured state. Other processing (such as the
+ * retrieval and processing of the device descriptor) should also
+ * be placed in this state.
+ */
+ HOST_STATE_Configured = 12, /**< May be implemented by the user project. This state should implement the
+ * actual work performed on the attached device and changed to the
+ * \ref HOST_STATE_Suspended or \ref HOST_STATE_WaitForDeviceRemoval states as needed.
+ */
+ HOST_STATE_Suspended = 15, /**< May be implemented by the user project. This state should be maintained
+ * while the bus is suspended, and changed to either the \ref HOST_STATE_Configured
+ * (after resuming the bus with the USB_Host_ResumeBus() macro) or the
+ * \ref HOST_STATE_WaitForDeviceRemoval states as needed.
+ */
+ };
+
+ /* Architecture Includes: */
#if (ARCH == ARCH_AVR8)
#include "AVR8/Host_AVR8.h"
#elif (ARCH == ARCH_UC3B)
#include "UC3B/Host_UC3B.h"
#endif
- /* Preprocessor Checks: */
- #if !defined(__INCLUDE_FROM_USB_DRIVER)
- #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
- #endif
-
#endif
/** @} */
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