Added usblib

1 files changed, 382 insertions, 0 deletions

diff --git a/usblib/device/usbdhidkeyb.h b/usblib/device/usbdhidkeyb.h
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+//*****************************************************************************

+//

+// usbdhidkeyb.h - Definitions used by HID keyboard class devices.

+//

+// Copyright (c) 2008-2012 Texas Instruments Incorporated.  All rights reserved.

+// Software License Agreement

+// 

+// Texas Instruments (TI) is supplying this software for use solely and

+// exclusively on TI's microcontroller products. The software is owned by

+// TI and/or its suppliers, and is protected under applicable copyright

+// laws. You may not combine this software with "viral" open-source

+// software in order to form a larger program.

+// 

+// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.

+// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT

+// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

+// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY

+// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL

+// DAMAGES, FOR ANY REASON WHATSOEVER.

+// 

+// This is part of revision 9453 of the Stellaris USB Library.

+//

+//*****************************************************************************

+

+#ifndef __USBDHIDKEYB_H__

+#define __USBDHIDKEYB_H__

+

+//*****************************************************************************

+//

+// If building with a C++ compiler, make all of the definitions in this header

+// have a C binding.

+//

+//*****************************************************************************

+#ifdef __cplusplus

+extern "C"

+{

+#endif

+

+//*****************************************************************************

+//

+//! \addtogroup hid_keyboard_device_class_api

+//! @{

+//

+//*****************************************************************************

+

+//*****************************************************************************

+//

+//! The maximum number of simultaneously-pressed, non-modifier keys that the

+//! HID BIOS keyboard protocol can send at once.  Attempts to send more pressed

+//! keys than this will result in a rollover error being reported to the host

+//! and KEYB_ERR_TOO_MANY_KEYS being returned from

+//! USBDHIDKeyboardKeyStateChange.

+//

+//*****************************************************************************

+#define KEYB_MAX_CHARS_PER_REPORT \

+                                6

+

+//*****************************************************************************

+//

+// PRIVATE

+//

+// The first few sections of this header are private defines that are used by

+// the USB HID keyboard code and are here only to help with the application

+// allocating the correct amount of memory for the USB HID Keyboard device

+// code.

+//

+//*****************************************************************************

+

+//*****************************************************************************

+//

+// PRIVATE

+//

+// This enumeration holds the various states that the keyboard can be in during

+// normal operation.

+//

+//*****************************************************************************

+typedef enum

+{

+    //

+    // Unconfigured.

+    //

+    HID_KEYBOARD_STATE_UNCONFIGURED,

+

+    //

+    // No keys to send and not waiting on data.

+    //

+    HID_KEYBOARD_STATE_IDLE,

+

+    //

+    // Waiting on report data from the host.

+    //

+    HID_KEYBOARD_STATE_WAIT_DATA,

+

+    //

+    // Waiting on data to be sent out.

+    //

+    HID_KEYBOARD_STATE_SEND

+}

+tKeyboardState;

+

+//*****************************************************************************

+//

+// PRIVATE

+//

+// The size of the keyboard input and output reports.

+//

+//*****************************************************************************

+#define KEYB_IN_REPORT_SIZE 8

+#define KEYB_OUT_REPORT_SIZE 1

+

+//*****************************************************************************

+//

+// PRIVATE

+//

+// This structure defines the private instance data structure for the USB HID

+// keyboard device.  This structure forms the RAM workspace used by each

+// instance of the keyboard.

+//

+//*****************************************************************************

+typedef struct

+{

+    //

+    // The USB configuration number set by the host or 0 of the device is

+    // currently unconfigured.

+    //

+    unsigned char ucUSBConfigured;

+

+    //

+    // The protocol requested by the host, USB_HID_PROTOCOL_BOOT or

+    // USB_HID_PROTOCOL_REPORT.

+    //

+    unsigned char ucProtocol;

+

+    //

+    // The current states that the keyboard LEDs are to be set to.

+    //

+    volatile unsigned char ucLEDStates;

+

+    //

+    // The total number of keys currently pressed.  This indicates the number

+    // of key press entries in the pucKeysPressed array.

+    //

+    unsigned char ucKeyCount;

+

+    //

+    // The current state of the keyboard interrupt IN endpoint.

+    //

+    volatile tKeyboardState eKeyboardState;

+

+    //

+    // A flag to indicate that the application pressed or released a key

+    // but that we couldn't send the report immediately.

+    //

+    volatile tBoolean bChangeMade;

+

+    //

+    // A buffer used to receive output reports from the host.

+    //

+    unsigned char pucDataBuffer[KEYB_OUT_REPORT_SIZE];

+

+    //

+    // A buffer used to hold the last input report sent to the host.

+    //

+    unsigned char pucReport[KEYB_IN_REPORT_SIZE];

+

+    //

+    // A buffer containing the usage codes of all non-modifier keys currently

+    // in the pressed state.

+    //

+    unsigned char pucKeysPressed[KEYB_MAX_CHARS_PER_REPORT];

+

+    //

+    // The idle timeout control structure for our input report.  This is

+    // required by the lower level HID driver.

+    //

+    tHIDReportIdle sReportIdle;

+

+    //

+    // The lower level HID driver's instance data.

+    //

+    tHIDInstance sHIDInstance;

+

+    //

+    // This is needed for the lower level HID driver.

+    //

+    tUSBDHIDDevice sHIDDevice;

+}

+tHIDKeyboardInstance;

+

+#ifndef DEPRECATED

+//*****************************************************************************

+//

+// The number of bytes of workspace required by the HID keyboard driver.

+// The client must provide a block of RAM of at least this size in the

+// psPrivateHIDKbdData field of the tUSBHIDKeyboardDevice structure passed on

+// USBDHIDKeyboardInit().

+//

+// This value is deprecated and should not be used, any new code should just

+// pass in a psPrivateHIDKbdData structure in the psPrivateHIDKbdData field.

+//

+//*****************************************************************************

+#define USB_HID_KEYB_WORKSPACE_SIZE (sizeof(tHIDKeyboardInstance))

+#endif

+

+//*****************************************************************************

+//

+//! This structure is used by the application to define operating parameters

+//! for the HID keyboard device.

+//

+//*****************************************************************************

+typedef struct

+{

+    //

+    //! The vendor ID that this device is to present in the device descriptor.

+    //

+    unsigned short usVID;

+

+    //

+    //! The product ID that this device is to present in the device descriptor.

+    //

+    unsigned short usPID;

+

+    //

+    //! The maximum power consumption of the device, expressed in milliamps.

+    //

+    unsigned short usMaxPowermA;

+

+    //

+    //! Indicates whether the device is self- or bus-powered and whether or not

+    //! it supports remote wakeup.  Valid values are USB_CONF_ATTR_SELF_PWR or

+    //! USB_CONF_ATTR_BUS_PWR, optionally ORed with USB_CONF_ATTR_RWAKE.

+    //

+    unsigned char ucPwrAttributes;

+

+    //! A pointer to the callback function which will be called to notify

+    //! the application of general events and those related to reception of

+    //! Output and Feature reports via the (optional) interrupt OUT endpoint.

+    //

+    tUSBCallback pfnCallback;

+

+    //

+    //! A client-supplied pointer which will be sent as the first

+    //! parameter in all calls made to the keyboard callback,

+    //! pfnCallback.

+    //

+    void *pvCBData;

+

+    //

+    //! A pointer to the string descriptor array for this device.  This array

+    //! must contain the following string descriptor pointers in this order.

+    //! Language descriptor, Manufacturer name string (language 1), Product

+    //! name string (language 1), Serial number string (language 1),HID

+    //! Interface description string (language 1), Configuration description

+    //! string (language 1).

+    //!

+    //! If supporting more than 1 language, the descriptor block (except for

+    //! string descriptor 0) must be repeated for each language defined in the

+    //! language descriptor.

+    //

+    const unsigned char * const *ppStringDescriptors;

+

+    //

+    //! The number of descriptors provided in the ppStringDescriptors

+    //! array.  This must be (1 + (5 * (num languages))).

+    //

+    unsigned long ulNumStringDescriptors;

+

+    //

+    //! A pointer to private instance data for this device.  This memory must

+    //! remain accessible for as long as the keyboard device is in use and must

+    //! not be modified by any code outside the HID keyboard driver.

+    //

+    tHIDKeyboardInstance *psPrivateHIDKbdData;

+}

+tUSBDHIDKeyboardDevice;

+

+//*****************************************************************************

+//

+// Keyboard-specific device class driver events

+//

+//*****************************************************************************

+

+//*****************************************************************************

+//

+//! This event indicates that the keyboard LED states are to be set.  The

+//! ulMsgValue parameter contains the requested state for each of the LEDs

+//! defined as a collection of ORed bits where a 1 indicates that the LED is

+//! to be turned on and a 0 indicates that it should be turned off.  The

+//! individual LED bits are defined using labels HID_KEYB_NUM_LOCK,

+//! HID_KEYB_CAPS_LOCK, HID_KEYB_SCROLL_LOCK, HID_KEYB_COMPOSE and

+//! HID_KEYB_KANA.

+//

+//*****************************************************************************

+#define USBD_HID_KEYB_EVENT_SET_LEDS                                          \

+                                USBD_HID_KEYB_EVENT_BASE

+

+//*****************************************************************************

+//

+//! This return code from USBDHIDKeyboardKeyStateChange indicates success.

+//

+//*****************************************************************************

+#define KEYB_SUCCESS            0

+

+//*****************************************************************************

+//

+//! This return code from USBDHIDKeyboardKeyStateChange indicates that an

+//! attempt has been made to record more than 6 simultaneously pressed,

+//! non-modifier keys.  The USB HID BIOS keyboard protocol allows no more than

+//! 6 pressed keys to be reported at one time.  Until at least one key is

+//! released, the device will report a roll over error to the host each time it

+//! is asked for the keyboard input report.

+//

+//*****************************************************************************

+#define KEYB_ERR_TOO_MANY_KEYS  1

+

+//*****************************************************************************

+//

+//! This return code from USBDHIDKeyboardKeyStateChange indicates that an

+//! error was reported while attempting to send a report to the host.  A client

+//! should assume that the host has disconnected if this return code is seen.

+//

+//*****************************************************************************

+#define KEYB_ERR_TX_ERROR       2

+

+//*****************************************************************************

+//

+//! USBDHIDKeyboardKeyStateChange returns this value if it is called with the

+//! bPress parameter set to false but with a ucUsageCode parameter which does

+//! does not indicate a key that is currently recorded as being pressed.  This

+//! may occur if an attempt was previously made to report more than 6 pressed

+//! keys and the earlier pressed keys are released before the later ones.  This

+//! condition is benign and should not be used to indicate a host disconnection

+//! or serious error.

+//

+//*****************************************************************************

+#define KEYB_ERR_NOT_FOUND      3

+

+//*****************************************************************************

+//

+//! USBDHIDKeyboardKeyStateChange returns this value if it is called before the

+//! USB host has connected and configured the device.  Any key usage code

+//! passed will be stored and passed to the host once configuration completes.

+//

+//*****************************************************************************

+#define KEYB_ERR_NOT_CONFIGURED 4

+

+//*****************************************************************************

+//

+// API Function Prototypes

+//

+//*****************************************************************************

+extern void *USBDHIDKeyboardInit(unsigned long ulIndex,

+                         const tUSBDHIDKeyboardDevice *psDevice);

+extern void *USBDHIDKeyboardCompositeInit(unsigned long ulIndex,

+                                          const tUSBDHIDKeyboardDevice *psDevice);

+extern void USBDHIDKeyboardTerm(void *pvInstance);

+extern void *USBDHIDKeyboardSetCBData(void *pvInstance, void *pvCBData);

+extern unsigned long USBDHIDKeyboardKeyStateChange(void *pvInstance,

+                                                   unsigned char ucModifiers,

+                                                   unsigned char ucUsageCode,

+                                                   tBoolean bPressed);

+extern void USBDHIDKeyboardPowerStatusSet(void *pvInstance,

+                                          unsigned char ucPower);

+extern tBoolean USBDHIDKeyboardRemoteWakeupRequest(void *pvInstance);

+

+//*****************************************************************************

+//

+// Close the Doxygen group.

+//! @}

+//

+//*****************************************************************************

+

+//*****************************************************************************

+//

+// Mark the end of the C bindings section for C++ compilers.

+//

+//*****************************************************************************

+#ifdef __cplusplus

+}

+#endif

+

+#endif // __USBDHIDKEYB_H__