mirror of
https://github.com/arduino/Arduino.git
synced 2024-11-30 11:24:12 +01:00
231 lines
8.8 KiB
C++
231 lines
8.8 KiB
C++
/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
|
|
|
|
This software may be distributed and modified under the terms of the GNU
|
|
General Public License version 2 (GPL2) as published by the Free Software
|
|
Foundation and appearing in the file GPL2.TXT included in the packaging of
|
|
this file. Please note that GPL2 Section 2[b] requires that all works based
|
|
on this software must also be made publicly available under the terms of
|
|
the GPL2 ("Copyleft").
|
|
|
|
Contact information
|
|
-------------------
|
|
|
|
Circuits At Home, LTD
|
|
Web : http://www.circuitsathome.com
|
|
e-mail : support@circuitsathome.com
|
|
*/
|
|
/* USB functions */
|
|
|
|
#ifndef USB_H_INCLUDED
|
|
#define USB_H_INCLUDED
|
|
|
|
//#define TRACE_USBHOST(x) x
|
|
#define TRACE_USBHOST(x)
|
|
|
|
#include <stdint.h>
|
|
#include "usb_ch9.h"
|
|
#include "address.h"
|
|
|
|
/* Common setup data constant combinations */
|
|
#define bmREQ_GET_DESCR USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_STANDARD|USB_SETUP_RECIPIENT_DEVICE // Get descriptor request type
|
|
#define bmREQ_SET USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_STANDARD|USB_SETUP_RECIPIENT_DEVICE // Set request type for all but 'set feature' and 'set interface'
|
|
#define bmREQ_CL_GET_INTF USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_INTERFACE // Get interface request type
|
|
|
|
// USB Device Classes
|
|
#define USB_CLASS_USE_CLASS_INFO 0x00 // Use Class Info in the Interface Descriptors
|
|
#define USB_CLASS_AUDIO 0x01 // Audio
|
|
#define USB_CLASS_COM_AND_CDC_CTRL 0x02 // Communications and CDC Control
|
|
#define USB_CLASS_HID 0x03 // HID
|
|
#define USB_CLASS_PHYSICAL 0x05 // Physical
|
|
#define USB_CLASS_IMAGE 0x06 // Image
|
|
#define USB_CLASS_PRINTER 0x07 // Printer
|
|
#define USB_CLASS_MASS_STORAGE 0x08 // Mass Storage
|
|
#define USB_CLASS_HUB 0x09 // Hub
|
|
#define USB_CLASS_CDC_DATA 0x0a // CDC-Data
|
|
#define USB_CLASS_SMART_CARD 0x0b // Smart-Card
|
|
#define USB_CLASS_CONTENT_SECURITY 0x0d // Content Security
|
|
#define USB_CLASS_VIDEO 0x0e // Video
|
|
#define USB_CLASS_PERSONAL_HEALTH 0x0f // Personal Healthcare
|
|
#define USB_CLASS_DIAGNOSTIC_DEVICE 0xdc // Diagnostic Device
|
|
#define USB_CLASS_WIRELESS_CTRL 0xe0 // Wireless Controller
|
|
#define USB_CLASS_MISC 0xef // Miscellaneous
|
|
#define USB_CLASS_APP_SPECIFIC 0xfe // Application Specific
|
|
#define USB_CLASS_VENDOR_SPECIFIC 0xff // Vendor Specific
|
|
|
|
// Additional Error Codes
|
|
#define USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED 0xD1
|
|
#define USB_DEV_CONFIG_ERROR_DEVICE_INIT_INCOMPLETE 0xD2
|
|
#define USB_ERROR_UNABLE_TO_REGISTER_DEVICE_CLASS 0xD3
|
|
#define USB_ERROR_OUT_OF_ADDRESS_SPACE_IN_POOL 0xD4
|
|
#define USB_ERROR_HUB_ADDRESS_OVERFLOW 0xD5
|
|
#define USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL 0xD6
|
|
#define USB_ERROR_EPINFO_IS_NULL 0xD7
|
|
#define USB_ERROR_INVALID_ARGUMENT 0xD8
|
|
#define USB_ERROR_CLASS_INSTANCE_ALREADY_IN_USE 0xD9
|
|
#define USB_ERROR_INVALID_MAX_PKT_SIZE 0xDA
|
|
#define USB_ERROR_EP_NOT_FOUND_IN_TBL 0xDB
|
|
#define USB_ERROR_TRANSFER_TIMEOUT 0xFF
|
|
|
|
#define USB_XFER_TIMEOUT 5000 //USB transfer timeout in milliseconds, per section 9.2.6.1 of USB 2.0 spec
|
|
//#define USB_NAK_LIMIT 32000 //NAK limit for a transfer. 0 means NAKs are not counted
|
|
#define USB_RETRY_LIMIT 3 //retry limit for a transfer
|
|
#define USB_SETTLE_DELAY 200 //settle delay in milliseconds
|
|
|
|
#define USB_NUMDEVICES 16 //number of USB devices
|
|
//#define HUB_MAX_HUBS 7 // maximum number of hubs that can be attached to the host controller
|
|
#define HUB_PORT_RESET_DELAY 20 // hub port reset delay 10 ms recomended, can be up to 20 ms
|
|
|
|
/* USB state machine states */
|
|
#define USB_STATE_MASK 0xf0
|
|
|
|
#define USB_STATE_DETACHED 0x10
|
|
#define USB_DETACHED_SUBSTATE_INITIALIZE 0x11
|
|
#define USB_DETACHED_SUBSTATE_WAIT_FOR_DEVICE 0x12
|
|
#define USB_DETACHED_SUBSTATE_ILLEGAL 0x13
|
|
#define USB_ATTACHED_SUBSTATE_SETTLE 0x20
|
|
#define USB_ATTACHED_SUBSTATE_RESET_DEVICE 0x30
|
|
#define USB_ATTACHED_SUBSTATE_WAIT_RESET_COMPLETE 0x40
|
|
#define USB_ATTACHED_SUBSTATE_WAIT_SOF 0x50
|
|
#define USB_ATTACHED_SUBSTATE_GET_DEVICE_DESCRIPTOR_SIZE 0x60
|
|
#define USB_STATE_ADDRESSING 0x70
|
|
#define USB_STATE_CONFIGURING 0x80
|
|
#define USB_STATE_RUNNING 0x90
|
|
#define USB_STATE_ERROR 0xa0
|
|
#define USB_STATE_MASK 0xf0
|
|
|
|
// USB Setup Packet Structure
|
|
typedef struct
|
|
{
|
|
union
|
|
{ // offset description
|
|
uint8_t bmRequestType; // 0 Bit-map of request type
|
|
struct
|
|
{
|
|
uint8_t recipient: 5; // Recipient of the request
|
|
uint8_t type: 2; // Type of request
|
|
uint8_t direction: 1; // Direction of data X-fer
|
|
};
|
|
} ReqType_u;
|
|
uint8_t bRequest; // 1 Request
|
|
union
|
|
{
|
|
uint16_t wValue; // 2 Depends on bRequest
|
|
struct
|
|
{
|
|
uint8_t wValueLo;
|
|
uint8_t wValueHi;
|
|
};
|
|
} wVal_u;
|
|
uint16_t wIndex; // 4 Depends on bRequest
|
|
uint16_t wLength; // 6 Depends on bRequest
|
|
} SETUP_PKT, *PSETUP_PKT;
|
|
|
|
/**
|
|
* \class USBReadParser
|
|
*
|
|
* \brief Base class used for USB descriptor parsing.
|
|
*/
|
|
class USBReadParser
|
|
{
|
|
public:
|
|
virtual void Parse(const uint32_t len, const uint8_t *pbuf, const uint32_t &offset) = 0;
|
|
};
|
|
|
|
/**
|
|
* \class USBDeviceConfig
|
|
*
|
|
* \brief Device configuration class used for managing device life cycle.
|
|
*/
|
|
class USBDeviceConfig
|
|
{
|
|
public:
|
|
//! @brief Perform final enumeration stage.
|
|
virtual uint32_t Init(uint32_t parent, uint32_t port, uint32_t lowspeed) = 0;
|
|
|
|
//! @brief Free USB allocated resources (pipes and address).
|
|
virtual uint32_t Release() = 0;
|
|
|
|
//! @brief Poll USB device. Call is made for each connected USB device on USBHost.task() call.
|
|
virtual uint32_t Poll() = 0;
|
|
|
|
//! @brief Retrieve USB device address.
|
|
virtual uint32_t GetAddress() = 0;
|
|
};
|
|
|
|
/**
|
|
* \class USBHost
|
|
*
|
|
* \brief Main USB host class.
|
|
*/
|
|
class USBHost
|
|
{
|
|
AddressPoolImpl<USB_NUMDEVICES> addrPool;
|
|
USBDeviceConfig* devConfig[USB_NUMDEVICES];
|
|
uint32_t devConfigIndex;
|
|
uint32_t bmHubPre;
|
|
|
|
public:
|
|
USBHost(void);
|
|
|
|
//void SetHubPreMask() { bmHubPre |= bmHUBPRE; };
|
|
//void ResetHubPreMask() { bmHubPre &= (~bmHUBPRE); };
|
|
|
|
AddressPool& GetAddressPool()
|
|
{
|
|
return (AddressPool&)addrPool;
|
|
};
|
|
|
|
uint32_t RegisterDeviceClass(USBDeviceConfig *pdev)
|
|
{
|
|
for (uint32_t i = 0; i < USB_NUMDEVICES; ++i)
|
|
{
|
|
if (!devConfig[i])
|
|
{
|
|
devConfig[i] = pdev;
|
|
return 0;
|
|
}
|
|
}
|
|
return USB_ERROR_UNABLE_TO_REGISTER_DEVICE_CLASS;
|
|
};
|
|
|
|
void ForEachUsbDevice(UsbDeviceHandleFunc pfunc)
|
|
{
|
|
addrPool.ForEachUsbDevice(pfunc);
|
|
};
|
|
|
|
uint32_t getUsbTaskState(void);
|
|
void setUsbTaskState(uint32_t state);
|
|
|
|
EpInfo* getEpInfoEntry(uint32_t addr, uint32_t ep);
|
|
uint32_t setEpInfoEntry(uint32_t addr, uint32_t epcount, EpInfo* eprecord_ptr);
|
|
|
|
/* Control requests */
|
|
uint32_t getDevDescr(uint32_t addr, uint32_t ep, uint32_t nbytes, uint8_t* dataptr);
|
|
uint32_t getConfDescr(uint32_t addr, uint32_t ep, uint32_t nbytes, uint32_t conf, uint8_t* dataptr);
|
|
uint32_t getConfDescr(uint32_t addr, uint32_t ep, uint32_t conf, USBReadParser *p);
|
|
uint32_t getStrDescr(uint32_t addr, uint32_t ep, uint32_t nbytes, uint8_t index, uint16_t langid, uint8_t* dataptr);
|
|
uint32_t setAddr(uint32_t oldaddr, uint32_t ep, uint32_t newaddr);
|
|
uint32_t setConf(uint32_t addr, uint32_t ep, uint32_t conf_value);
|
|
uint32_t ctrlReq(uint32_t addr, uint32_t ep, uint8_t bmReqType, uint8_t bRequest, uint8_t wValLo, uint8_t wValHi,
|
|
uint16_t wInd, uint16_t total, uint32_t nbytes, uint8_t* dataptr, USBReadParser *p);
|
|
|
|
/* Transfer requests */
|
|
uint32_t inTransfer(uint32_t addr, uint32_t ep, uint32_t *nbytesptr, uint8_t* data);
|
|
uint32_t outTransfer(uint32_t addr, uint32_t ep, uint32_t nbytes, uint8_t* data);
|
|
uint32_t dispatchPkt(uint32_t token, uint32_t ep, uint32_t nak_limit);
|
|
|
|
void Task(void);
|
|
|
|
uint32_t DefaultAddressing(uint32_t parent, uint32_t port, uint32_t lowspeed);
|
|
uint32_t Configuring(uint32_t parent, uint32_t port, uint32_t lowspeed);
|
|
uint32_t ReleaseDevice(uint32_t addr);
|
|
|
|
private:
|
|
void init();
|
|
uint32_t setPipeAddress(uint32_t addr, uint32_t ep, EpInfo **ppep, uint32_t &nak_limit);
|
|
uint32_t OutTransfer(EpInfo *pep, uint32_t nak_limit, uint32_t nbytes, uint8_t *data);
|
|
uint32_t InTransfer(EpInfo *pep, uint32_t nak_limit, uint32_t *nbytesptr, uint8_t* data);
|
|
};
|
|
|
|
#endif /* USB_H_INCLUDED */
|