115 lines
5.2 KiB
C
115 lines
5.2 KiB
C
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/*----------------------------------------------------------------------------
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* U S B - K e r n e l
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*----------------------------------------------------------------------------
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* Name: usbhw.h
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* Purpose: USB Hardware Layer Definitions
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* Version: V1.20
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*----------------------------------------------------------------------------
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* This software is supplied "AS IS" without any warranties, express,
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* implied or statutory, including but not limited to the implied
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* warranties of fitness for purpose, satisfactory quality and
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* noninfringement. Keil extends you a royalty-free right to reproduce
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* and distribute executable files created using this software for use
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* on NXP Semiconductors LPC family microcontroller devices only. Nothing
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* else gives you the right to use this software.
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*
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* Copyright (c) 2009 Keil - An ARM Company. All rights reserved.
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*----------------------------------------------------------------------------
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* History:
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* V1.20 Added USB_ClearEPBuf
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* V1.00 Initial Version
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*----------------------------------------------------------------------------*/
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#ifndef __USBHW_H__
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#define __USBHW_H__
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extern "C" {
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#include "lpc_types.h"
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}
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/* USB RAM Definitions */
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#define USB_RAM_ADR 0x2007C000 /* USB RAM Start Address */
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#define USB_RAM_SZ 0x00004000 /* USB RAM Size (16kB) */
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/* DMA Endpoint Descriptors */
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#define DD_NISO_CNT 16 /* Non-Iso EP DMA Descr. Count (max. 32) */
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#define DD_ISO_CNT 8 /* Iso EP DMA Descriptor Count (max. 32) */
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#define DD_NISO_SZ (DD_NISO_CNT * 16) /* Non-Iso DMA Descr. Size */
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#define DD_ISO_SZ (DD_ISO_CNT * 20) /* Iso DMA Descriptor Size */
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#define DD_NISO_ADR (USB_RAM_ADR + 128) /* Non-Iso DMA Descr. Address */
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#define DD_ISO_ADR (DD_NISO_ADR + DD_NISO_SZ) /* Iso DMA Descr. Address */
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#define DD_SZ (128 + DD_NISO_SZ + DD_ISO_SZ) /* Descr. Size */
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/* DMA Buffer Memory Definitions */
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#define DMA_BUF_ADR (USB_RAM_ADR + DD_SZ) /* DMA Buffer Start Address */
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#define DMA_BUF_SZ (USB_RAM_SZ - DD_SZ) /* DMA Buffer Size */
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/* USB Error Codes */
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#define USB_ERR_PID 0x0001 /* PID Error */
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#define USB_ERR_UEPKT 0x0002 /* Unexpected Packet */
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#define USB_ERR_DCRC 0x0004 /* Data CRC Error */
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#define USB_ERR_TIMOUT 0x0008 /* Bus Time-out Error */
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#define USB_ERR_EOP 0x0010 /* End of Packet Error */
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#define USB_ERR_B_OVRN 0x0020 /* Buffer Overrun */
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#define USB_ERR_BTSTF 0x0040 /* Bit Stuff Error */
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#define USB_ERR_TGL 0x0080 /* Toggle Bit Error */
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/* USB DMA Status Codes */
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#define USB_DMA_INVALID 0x0000 /* DMA Invalid - Not Configured */
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#define USB_DMA_IDLE 0x0001 /* DMA Idle - Waiting for Trigger */
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#define USB_DMA_BUSY 0x0002 /* DMA Busy - Transfer in progress */
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#define USB_DMA_DONE 0x0003 /* DMA Transfer Done (no Errors)*/
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#define USB_DMA_OVER_RUN 0x0004 /* Data Over Run */
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#define USB_DMA_UNDER_RUN 0x0005 /* Data Under Run (Short Packet) */
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#define USB_DMA_ERROR 0x0006 /* Error */
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#define USB_DMA_UNKNOWN 0xFFFF /* Unknown State */
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/* USB DMA Descriptor */
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typedef struct _USB_DMA_DESCRIPTOR {
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uint32_t BufAdr; /* DMA Buffer Address */
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uint16_t BufLen; /* DMA Buffer Length */
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uint16_t MaxSize; /* Maximum Packet Size */
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uint32_t InfoAdr; /* Packet Info Memory Address */
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union { /* DMA Configuration */
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struct {
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uint32_t Link : 1; /* Link to existing Descriptors */
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uint32_t IsoEP : 1; /* Isonchronous Endpoint */
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uint32_t ATLE : 1; /* ATLE (Auto Transfer Length Extract) */
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uint32_t Rsrvd : 5; /* Reserved */
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uint32_t LenPos : 8; /* Length Position (ATLE) */
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} Type;
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uint32_t Val;
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} Cfg;
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} USB_DMA_DESCRIPTOR;
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extern "C" {
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/* USB Hardware Functions */
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extern void USB_Init (void);
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extern void USB_Connect (uint32_t con);
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extern void USB_Reset (void);
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extern void USB_Suspend (void);
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extern void USB_Resume (void);
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extern void USB_WakeUp (void);
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extern void USB_WakeUpCfg (uint32_t cfg);
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extern void USB_SetAddress (uint32_t adr);
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extern void USB_Configure (uint32_t cfg);
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extern void USB_ConfigEP (USB_ENDPOINT_DESCRIPTOR *pEPD);
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extern void USB_DirCtrlEP (uint32_t dir);
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extern void USB_EnableEP (uint32_t EPNum);
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extern void USB_DisableEP (uint32_t EPNum);
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extern void USB_ResetEP (uint32_t EPNum);
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extern void USB_SetStallEP (uint32_t EPNum);
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extern void USB_ClrStallEP (uint32_t EPNum);
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extern void USB_ClearEPBuf (uint32_t EPNum);
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extern uint32_t USB_ReadEP (uint32_t EPNum, uint8_t *pData);
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extern uint32_t USB_WriteEP (uint32_t EPNum, uint8_t *pData, uint32_t cnt);
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extern uint32_t USB_DMA_Setup (uint32_t EPNum, USB_DMA_DESCRIPTOR *pDD);
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extern void USB_DMA_Enable (uint32_t EPNum);
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extern void USB_DMA_Disable(uint32_t EPNum);
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extern uint32_t USB_DMA_Status (uint32_t EPNum);
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extern uint32_t USB_DMA_BufAdr (uint32_t EPNum);
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extern uint32_t USB_DMA_BufCnt (uint32_t EPNum);
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extern uint32_t USB_GetFrame (void);
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extern void USB_IRQHandler (void);
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}
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#endif /* __USBHW_H__ */
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