📄 ch375host.h
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//=================================================================================================
//*************************************************************************************************
// Module Name : CH375Host.H
// Device object:
// Create date : 2005-11-07
// Modify date : 2005-11-16
// Description : USB 1.1 Host for CH375
// 如果设备端不是CH37X,那么分析描述符 CH375中断为查询方式
// Author : Li yuanzheng
// Version : V1.0
//*************************************************************************************************
//=================================================================================================
//
#ifndef __CH375Host_H__
#define __CH375Host_H__
#include "CH375H.H"
//*************************************************************************************************
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
// 以下的参数需要设定：
#define DELAY_START_value 1 // 根据单片机的时钟选择延时初值
#define UNKNOWN_USB_DEVICE 0xF1
#define USB_INT_RET_NAK 0x2A // 00101010B,返回NAK
//-------------------------------------------------------------------------------------------------
// 并口电路连接方式 :
//-------------------------------------------------------------------------------------------------
//|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|
//| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
//|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|
//|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|
//| D0 | D1 | D2 | D3 | D4 | D5 | D6 | D7 | INT | A0 | RD# | WR# | STA | CS | VCC | GND |
//|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|
//-------------------------------------------------------------------------------------------------
//|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|
//| D0 -- D7 | P32 | P37 | RD | WR | P27 |0xCxx| +5V | GND |
//|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|
//-------------------------------------------------------------------------------------------------
//=================================================================================================
// The Standard Descriptors
//=================================================================================================
//
//-------------------------------------------------------------------------------------------------
// Device Descriptor Definition
typedef struct _USB_DEVICE_DESCRIPTOR
{
unsigned char bLength; // Size of this descriptor in bytes.
unsigned char bDescriptorType; // DEVICE Descriptor Type = 01H.
unsigned short bcdUSB; // USB Specification Release Number in Binary-Coded Decimal (i.e. 2.00 is 0x0200).
unsigned char bDeviceClass; // Class code (assigned by USB).
unsigned char bDeviceSubClass; // Subclass code(assigned by USB) if the field does not have a value of FFH.
unsigned char bDeviceProtocol; // Protocol code (assigned by USB).
unsigned char bMaxPacketSize0; // Maximun packet size for endpoint zero.(Only 8,16,32,and 64 are valid)
unsigned short idVendor; // Vendor ID (assigned by USB).
unsigned short idProduct; // Product ID (assigned by manufacturer).
unsigned short bcdDevice; // Device release number in binary-coded decimal.
unsigned char iManufacturer; // Index of string descriptor describing manufacturer.
unsigned char iProduct; // Index of product string descriptor.
unsigned char iSerialNumber; // Index of string descriptor describing the device's serial number.
unsigned char bNumConfigurations; // Number of possible configurations.
} USB_DEV_DESCR, *PUSB_DEV_DESCR;
//-------------------------------------------------------------------------------------------------
// Configuration Descriptors Definition
typedef struct _USB_CONFIG_DESCRIPTOR
{
unsigned char bLength; // Size of this descriptor in bytes.
unsigned char bDescriptorType; // Configuration Descriptor Type = 02H.
unsigned short wTotalLength; // Total length of data returned for this configuration.Includes the
// combined length of all descriptors(configuration,interface,endpoint,
// and class or vendor specific)returned for this configuration.
unsigned char bNumInterfaces; // Number of interfaces supported by this configuration.
unsigned char bConfigurationvalue; // Value to use as an argument to Set Configuration to select this configuration.
unsigned char iConfiguration; // Index of string descriptor descrtbing this configuration.
unsigned char bmAttributes; // Configuration characteristics.
unsigned char MaxPower; // Maximum power consumption of USB device from the bus in this specific
// configuration when the device is fully operational.Expressed in 2 ma units.
} USB_CFG_DESCR, *PUSB_CFG_DESCR;
//-------------------------------------------------------------------------------------------------
// Interface Descriptors Definition
typedef struct _USB_INTERF_DESCRIPTOR
{
unsigned char bLength; // Size of this descriptor in bytes.
unsigned char bDescriptorType; // Interface Descriptor Type = 04H.
unsigned char bInterfaceNumber; // Number of interface.
unsigned char bAlternateSetting; // Value used to select alternate setting for the interface identified in the prior field.
unsigned char bNumEndpoints; // Number of endpoints used by this interface (excluding endpoint zero).
unsigned char bInterfaceClass; // Class code (assigned by USB).
unsigned char bInterfaceSubClass; // Subclass code (assigned by USB).
unsigned char bInterfaceProtocol; // Protocol code (assigned by USB).
unsigned char iInterface; // Index of string decriptor.
} USB_ITF_DESCR, *PUSB_ITF_DESCR;
//-------------------------------------------------------------------------------------------------
// Endpoint Descriptors Definition
typedef struct _USB_ENDPOINT_DESCRIPTOR
{
unsigned char bLength; // Size of this descriptor in bytes.
unsigned char bDescriptorType; // Endpoint descriptor type = 05H.
unsigned char bEndpointAddress; // The address of the endpoint on the USB device described by this descriptor.
unsigned char bmAttributes; // This field describes the endpoint's attributes when it is configured
// using the Configuration Value.
unsigned short wMaxPacketSize; // Maximum packet size this endpoint is capable of sending or receving
// when this configuration is selected.
unsigned char bInterval; // Interval for polling endpoint for data transfer.
} USB_ENDP_DESCR, *PUSB_ENDP_DESCR;
//-------------------------------------------------------------------------------------------------
// Device_Qualifier Descriptor
typedef struct _USB_DEVICE_QUALIFIER_DESCRIPTOR
{
unsigned char bLength; // Size of this descriptor in bytes.
unsigned char bDescriptorType; // DEVICE_QUALIFIER descriptor type = 06H.
unsigned short bcdUSB; // USB specification version 2.00.
unsigned char bDeviceClass; // Class code (assigned by USB).
unsigned char bDeviceSubClass; // Subclass code(assigned by USB).
unsigned char bDeviceProtocol; // Protocol code (assigned by USB).
unsigned char bMaxPacketSize0; // Maximun packet size for endpoint zero when operating at other speed.
unsigned char bNumConfigurations; // Number of other-speed configurations.
unsigned char reserved; // Reserved for future use(must = 0).
} USB_DEVQUA_DESCR, *PUSB_DEVQUA_DESCR;
//-------------------------------------------------------------------------------------------------
// Other Speed Configuration Descriptor
typedef struct _USB_OTHER_SPEED_CONFIGURATION_DESCRIPTOR
{
unsigned char bLength; // Size of this descriptor in bytes.
unsigned char bDescriptorType; // OTHER SPEED CONFIGURATION descriptor type = 07H.
unsigned short wTotalLength; // Total length of data returned.
unsigned char bNumberInterfaces; // Number of interfaces supported by this speed configuration.
unsigned char bConfigurationValue; // Value used to select configuration.
unsigned char iConfiguration; // Index of string descriptor.
unsigned char bmAttributes; // Same as configuration descriptor.
unsigned char MaxPower; // Same as configuration descriptor.
} USB_OTHSPDCON_DESCR,*PUSB_OTHSPDCON_DESCR;
//-------------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------------
// The marshal of configuration descriptor
typedef struct _USB_CONFIG_DESCRIPTOR_LONG
{
USB_CFG_DESCR cfg_descr; // Configuration Descriptors
USB_ITF_DESCR itf_descr; // Interface Descriptors
USB_ENDP_DESCR endp_descr[4]; // Endpoint Descriptors ( 4 Endpoints )
} USB_CFG_DESCR_LONG, *PUSB_CFG_DESCR_LONG;
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
//*************************************************************************************************
// 外部命令码
//=================================================================================================
//=================================================================================================
//
extern void CH375_SetUSBMode( unsigned char mode ); // 设置CH37X的工作模式
extern void CH375_ToggleReceive( void ); // 主机接收成功后,切换DATA0和DATA1实现数据同步
extern void CH375_ToggleSend( void ); // 主机发送成功后,切换DATA0和DATA1实现数据同步
extern unsigned char CH375_ClrStall6( void ); // 主机接收失败后,复位设备端的数据同步到DATA0
extern unsigned char CH375_ClrStall7( void ); // 主机发送失败后,复位设备端的数据同步到DATA0
extern unsigned char CH375_ReadUSBData( unsigned char *buffer ); // 从CH37X读出数据块
extern void CH375_WriteUSBData( unsigned char length, unsigned char *buffer ); // 向CH37X写入数据块
extern unsigned char CH375_IssueToken( unsigned char EndpAndPID ); // 执行USB事务
extern void CH375_HostSend( unsigned char length, unsigned char *buffer ); // 主机发送
extern unsigned char CH375_HostReceive( unsigned char *buffer ); // 主机接收, 返回长度
extern unsigned char CH375_GetDescription( unsigned char type ); // 从设备端获取描述符
extern unsigned char CH375_SetAddress( unsigned char address ); // 设置设备端的USB地址
extern unsigned char CH375_SetConfiguration( unsigned char configuration ); // 设置设备端的USB配置
extern void CH375_Init( void ); // CH375初始化子程序
extern unsigned char CH375_InitUSBDevice( void ); // 初始化USB设备,完成设备枚举
//-------------------------------------------------------------------------------------------------
extern void CH375HostProcess( void );
//=================================================================================================
// Main.C
extern void mDelayuS( unsigned int usecond ); // 1 us delay
extern void mDelaymS( unsigned int msecond ); // 1 ms delay
//-------------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------------
#endif
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