Adaptation of the official mbed USBHost repository to work with the LPC4088 Display Module
Dependents: DMSupport DMSupport DMSupport DMSupport
Fork of DM_USBHost by
USBHost/USBHALHost.h
- Committer:
- samux
- Date:
- 2013-03-06
- Revision:
- 2:5e8fdc541b98
- Parent:
- 0:a554658735bf
- Child:
- 4:b320d68e98e7
File content as of revision 2:5e8fdc541b98:
/* Copyright (c) 2010-2012 mbed.org, MIT License * * Permission is hereby granted, free of charge, to any person obtaining a copy of this software * and associated documentation files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef USBHALHOST_H #define USBHALHOST_H #include "USBHostTypes.h" #include "USBHostConf.h" class USBHostHub; class USBHALHost { public: /** * Constructor * init variables and memory where will be stored HCCA, ED and TD */ USBHALHost(); /** * Initialize host controller. Enable USB interrupts. This part is not in the constructor because, * this function calls a virtual method if a device is already connected */ void init(); /** * reset the root hub */ void resetRootHub(); /** * return the value contained in the control HEAD ED register * * @returns address of the control Head ED */ uint32_t controlHeadED(); /** * return the value contained in the bulk HEAD ED register * * @returns address of the bulk head ED */ uint32_t bulkHeadED(); /** * return the value of the head interrupt ED contained in the HCCA * * @returns address of the head interrupt ED contained in the HCCA */ uint32_t interruptHeadED(); /** * Update the head ED for control transfers */ void updateControlHeadED(uint32_t addr); /** * Update the head ED for bulk transfers */ void updateBulkHeadED(uint32_t addr); /** * Update the head ED for interrupt transfers */ void updateInterruptHeadED(uint32_t addr); /* * * Enable List for the specified endpoint type */ void enableList(ENDPOINT_TYPE type); /** * Disable List for the specified endpoint type */ bool disableList(ENDPOINT_TYPE type); protected: /** * Virtual method called when a device has been connected * * @param hub hub number of the device * @param port port number of the device * @param lowSpeed 1 if low speed, 0 otherwise * @param hub_parent reference to the hub where the device is connected (NULL if the hub parent is the root hub) */ virtual void deviceConnected(int hub, int port, bool lowSpeed, USBHostHub * hub_parent = NULL) {}; /** * Virtual method called when a device has been disconnected * * @param hub hub number of the device * @param port port number of the device * @param hub_parent reference to the hub where the device is connected (NULL if the hub parent is the root hub) * @param addr list of the TDs which have been completed to dequeue freed TDs */ virtual void deviceDisconnected(int hub, int port, USBHostHub * hub_parent, volatile uint32_t addr) {}; /** * Virtual method called when a transfer has been completed * * @param addr list of the TDs which have been completed */ virtual void transferCompleted(volatile uint32_t addr){}; /** * Find a memory section for a new ED * * @returns the address of this section */ volatile uint8_t * getED(); /** * Find a memory section for a new TD * * @returns the address of this section */ volatile uint8_t * getTD(); /** * Release a previous memory section reserved for an ED * * @param ed address of the ED */ void freeED(volatile uint8_t * ed); /** * Release a previous memory section reserved for an TD * * @param td address of the TD */ void freeTD(volatile uint8_t * td); private: static void _usbisr(void); void UsbIrqhandler(); void memInit(); HCCA volatile * usb_hcca; //256 bytes aligned uint8_t volatile * usb_edBuf; //4 bytes aligned uint8_t volatile * usb_tdBuf; //4 bytes aligned static USBHALHost * instHost; bool volatile edBufAlloc[MAX_ENDPOINT]; bool volatile tdBufAlloc[MAX_TD]; }; #endif