usb_main.h

包含介绍C8051F320的USB控制器的固件编程对固件设计者很有帮助

/*
   Copyright 2003 Cygnal Integrated Products, Inc.

   File:    usb_endpoint.h
   Author:  JS
   Created: JAN 03

   Target Device: C8051F320

   Main header file for USB firmware. Includes function prototypes,
   standard constants, device and endpoint state definitions.

*/

#ifndef _USB_MAIN_H_
#define _USB_MAIN_H_

#include "usb_structs.h"

#ifndef _BYTE_DEF_
#define _BYTE_DEF_
typedef unsigned char BYTE;
#endif   /* _BYTE_DEF_ */

#ifndef _WORD_DEF_
#define _WORD_DEF_
typedef union {unsigned int i; unsigned char c[2];} WORD;
#endif   /* _WORD_DEF_ */

// 16-bit SFR declarations
sfr16 DP       = 0x82;                 // data pointer
sfr16 TMR2RL   = 0xca;                 // Timer2 reload
sfr16 TMR2     = 0xcc;                 // Timer2 counter
sfr16 TMR3     = 0x94;                 // Timer3 counter
sfr16 TMR3RL   = 0x92;                 // Timer3 reload
sfr16 PCA0CP1  = 0xe9;                 // PCA0 Module 1 Capture/Compare
sfr16 PCA0CP2  = 0xeb;                 // PCA0 Module 2 Capture/Compare
sfr16 PCA0CP3  = 0xed;                 // PCA0 Module 3 Capture/Compare
sfr16 PCA0CP4  = 0xfd;                 // PCA0 Module 4 Capture/Compare
sfr16 PCA0CP0  = 0xfb;                 // PCA0 Module 0 Capture/Compare
sfr16 PCA0     = 0xf9;                 // PCA0 counter

// Define standard constants
#define TRUE   1
#define FALSE  0
#define ON     1
#define OFF    0
#define REMOTE_WAKE_ON     2
#define REMOTE_WAKE_OFF    0
#define SELF_POWER_ON      1
#define SELF_POWER_OFF     0
#ifndef NULL
#define NULL   0
#endif

#define SYSCLK       23560000             // SYSCLK frequency in Hz
#define SAMPLERATE   100000               // ADC0 Sample Rate

// USB clock selections (SFR CLKSEL)
#define USB_4X_CLOCK       0
#define USB_INT_OSC_DIV_2  0x10
#define USB_EXT_OSC        0x20
#define USB_EXT_OSC_DIV_2  0x30
#define USB_EXT_OSC_DIV_3  0x40
#define USB_EXT_OSC_DIV_4  0x50

// System clock selections (SFR CLKSEL)
#define SYS_INT_OSC        0
#define SYS_EXT_OSC        0x01
#define SYS_4X_DIV_2       0x02

// USB device speed settings
#define FULL_SPEED         0x20
#define LOW_SPEED          0x00

// ADC0 AMUX settings
#define AMX_TEMP_SENSE     0x1E           // Temperature sensor
#define AMX_P1_7           0x07           // P1.7 (potentiometer)
#define AMX_GND            0x1F           // Ground

// Define endpoint status values
#define  EP_IDLE           0
#define  EP_TX             1
#define  EP_ERROR          2
#define  EP_HALTED         3
#define  EP_RX             4

// Define device states
#define  DEV_DEFAULT       0
#define  DEV_ADDRESS       1
#define  DEV_CONFIG        2

#define  EP_MASK_DIR       0x80

// Endpoint addresses
#define  EP1_IN            0x81
#define  EP1_OUT           0x01
#define  EP2_IN            0x82
#define  EP2_OUT           0x02
#define  EP3_IN            0x83
#define  EP3_OUT           0x03

// Function prototypes
void USBReset (void);                     // usb_reset.c
void Endpoint0 ();                        // usb_endpoint.c
void BulkOrInterruptOut(PEP_STATUS);      //
void BulkOrInterruptIn(PEP_STATUS);       //
void StdReq (PEP_STATUS);                 // usb_stdreq.c
BYTE SetConfiguration(BYTE);              // usb_utils.c
BYTE SetInterface(PIF_STATUS);            //
BYTE HaltEndpoint (UINT uEp);             //
BYTE EnableEndpoint (UINT uEp);           //
BYTE GetEpStatus (UINT uEp);              //
void FIFORead (BYTE, UINT, BYTE*);        //
void FIFOWrite (BYTE bEp, UINT uNumBytes, BYTE * pData);

// Standard Device Request Routine prototypes
void SetAddressRequest (void);            // usb_stdreq.c
void SetFeatureRequest (void);            //
void ClearFeatureRequest (void);          //
void SetConfigurationRequest (void);      //
void SetDescriptorRequest (void);         //
void SetInterfaceRequest (void);          //
void GetStatusRequest (void);             //
void GetDescriptorRequest (void);         //
void GetConfigurationRequest (void);      //
void GetInterfaceRequest (void);          //
void SynchFrameRequest (void);            //

#endif   /* _USB_MAIN_H_ */