From 990090a4cc9070837d31e66b58d40f0c3d038741 Mon Sep 17 00:00:00 2001 From: Yuval Adam Date: Sun, 16 Mar 2014 14:41:11 +0200 Subject: Add usblib and utils --- usblib/device/usbdhidkeyb.h | 365 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 365 insertions(+) create mode 100644 usblib/device/usbdhidkeyb.h (limited to 'usblib/device/usbdhidkeyb.h') diff --git a/usblib/device/usbdhidkeyb.h b/usblib/device/usbdhidkeyb.h new file mode 100644 index 0000000..c509b9f --- /dev/null +++ b/usblib/device/usbdhidkeyb.h @@ -0,0 +1,365 @@ +//***************************************************************************** +// +// usbdhidkeyb.h - Definitions used by HID keyboard class devices. +// +// Copyright (c) 2008-2014 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 2.1.0.12573 of the Tiva 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 results 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. + // + uint8_t ui8USBConfigured; + + // + // The protocol requested by the host, USB_HID_PROTOCOL_BOOT or + // USB_HID_PROTOCOL_REPORT. + // + uint8_t ui8Protocol; + + // + // The current states that the keyboard LEDs are to be set to. + // + volatile uint8_t ui8LEDStates; + + // + // The total number of keys currently pressed. This indicates the number + // of key press entries in the pui8KeysPressed array. + // + uint8_t ui8KeyCount; + + // + // 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 bool bChangeMade; + + // + // A buffer used to receive output reports from the host. + // + uint8_t pui8DataBuffer[KEYB_OUT_REPORT_SIZE]; + + // + // A buffer used to hold the last input report sent to the host. + // + uint8_t pui8Report[KEYB_IN_REPORT_SIZE]; + + // + // A buffer containing the usage codes of all non-modifier keys currently + // in the pressed state. + // + uint8_t pui8KeysPressed[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; + + // + // This is needed for the lower level HID driver. + // + tUSBDHIDDevice sHIDDevice; +} +tHIDKeyboardInstance; + +//***************************************************************************** +// +//! 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. + // + const uint16_t ui16VID; + + // + //! The product ID that this device is to present in the device descriptor. + // + const uint16_t ui16PID; + + // + //! The maximum power consumption of the device, expressed in milliamps. + // + const uint16_t ui16MaxPowermA; + + // + //! Indicates whether the device is self- or bus-powered and whether or not + //! it supports remote wakeup. Valid values are \b USB_CONF_ATTR_SELF_PWR + //! or \b USB_CONF_ATTR_BUS_PWR, optionally ORed with + //! \b USB_CONF_ATTR_RWAKE. + // + const uint8_t ui8PwrAttributes; + + //! A pointer to the callback function which is called to notify + //! the application of general events and those related to reception of + //! Output and Feature reports via the (optional) interrupt OUT endpoint. + // + const tUSBCallback pfnCallback; + + // + //! A client-supplied pointer which is 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 uint8_t * const *ppui8StringDescriptors; + + // + //! The number of descriptors provided in the ppStringDescriptors + //! array. This must be (1 + (5 * (num languages))). + // + const uint32_t ui32NumStringDescriptors; + + // + //! The 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 sPrivateData; +} +tUSBDHIDKeyboardDevice; + +//***************************************************************************** +// +// Keyboard-specific device class driver events +// +//***************************************************************************** + +//***************************************************************************** +// +//! This event indicates that the keyboard LED states are to be set. The +//! ui32MsgValue 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 \b HID_KEYB_NUM_LOCK, +//! \b HID_KEYB_CAPS_LOCK, \b HID_KEYB_SCROLL_LOCK, \b HID_KEYB_COMPOSE and +//! \b 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 reports 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 ui8UsageCode 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 is stored and passed to the host once configuration completes. +// +//***************************************************************************** +#define KEYB_ERR_NOT_CONFIGURED 4 + +//***************************************************************************** +// +// API Function Prototypes +// +//***************************************************************************** +extern void *USBDHIDKeyboardInit(uint32_t ui32Index, + tUSBDHIDKeyboardDevice *psHIDKbDevice); +extern void *USBDHIDKeyboardCompositeInit(uint32_t ui32Index, + tUSBDHIDKeyboardDevice *psHIDKbDevice, + tCompositeEntry *psCompEntry); +extern void USBDHIDKeyboardTerm(void *pvKeyboardInstance); +extern void *USBDHIDKeyboardSetCBData(void *pvKeyboardInstance, + void *pvCBData); +extern uint32_t USBDHIDKeyboardKeyStateChange(void *pvKeyboardInstance, + uint8_t ui8Modifiers, + uint8_t ui8UsageCode, + bool bPressed); +extern void USBDHIDKeyboardPowerStatusSet(void *pvKeyboardInstance, + uint8_t ui8Power); +extern bool USBDHIDKeyboardRemoteWakeupRequest(void *pvKeyboardInstance); + +//***************************************************************************** +// +// Close the Doxygen group. +//! @} +// +//***************************************************************************** + +//***************************************************************************** +// +// Mark the end of the C bindings section for C++ compilers. +// +//***************************************************************************** +#ifdef __cplusplus +} +#endif + +#endif // __USBDHIDKEYB_H__ -- cgit v1.3.1