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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: V1.10 |
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*---------------------------------------------------------------------------- |
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* This file is part of the uVision/ARM development tools. |
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* This software may only be used under the terms of a valid, current, |
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* end user licence from KEIL for a compatible version of KEIL software |
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* development tools. Nothing else gives you the right to use it. |
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* |
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* Copyright (c) 2005-2006 Keil Software. |
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*---------------------------------------------------------------------------*/ |
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#ifndef __USBHW_H__ |
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#define __USBHW_H__ |
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/* USB RAM Definitions */ |
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#define USB_RAM_ADR 0x7FD00000 /* USB RAM Start Address */ |
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#define USB_RAM_SZ 0x00002000 /* USB RAM Size (8kB) */ |
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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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DWORD BufAdr; /* DMA Buffer Address */ |
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WORD BufLen; /* DMA Buffer Length */ |
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WORD MaxSize; /* Maximum Packet Size */ |
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DWORD InfoAdr; /* Packet Info Memory Address */ |
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union { /* DMA Configuration */ |
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struct { |
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DWORD Link : 1; /* Link to existing Descriptors */ |
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DWORD IsoEP : 1; /* Isonchronous Endpoint */ |
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DWORD ATLE : 1; /* ATLE (Auto Transfer Length Extract) */ |
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DWORD Rsrvd : 5; /* Reserved */ |
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DWORD LenPos : 8; /* Length Position (ATLE) */ |
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} Type; |
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DWORD Val; |
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} Cfg; |
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} USB_DMA_DESCRIPTOR; |
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/* USB Hardware Functions */ |
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extern void USB_Init (void); |
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extern void USB_Connect (BOOL 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 (BOOL cfg); |
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extern void USB_SetAddress (DWORD adr); |
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extern void USB_Configure (BOOL cfg); |
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extern void USB_ConfigEP (USB_ENDPOINT_DESCRIPTOR *pEPD); |
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extern void USB_DirCtrlEP (DWORD dir); |
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extern void USB_EnableEP (DWORD EPNum); |
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extern void USB_DisableEP (DWORD EPNum); |
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extern void USB_ResetEP (DWORD EPNum); |
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extern void USB_SetStallEP (DWORD EPNum); |
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extern void USB_ClrStallEP (DWORD EPNum); |
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extern DWORD USB_ReadEP (DWORD EPNum, BYTE *pData); |
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extern DWORD USB_WriteEP (DWORD EPNum, BYTE *pData, DWORD cnt); |
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extern BOOL USB_DMA_Setup (DWORD EPNum, USB_DMA_DESCRIPTOR *pDD); |
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extern void USB_DMA_Enable (DWORD EPNum); |
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extern void USB_DMA_Disable(DWORD EPNum); |
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extern DWORD USB_DMA_Status (DWORD EPNum); |
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extern DWORD USB_DMA_BufAdr (DWORD EPNum); |
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extern DWORD USB_DMA_BufCnt (DWORD EPNum); |
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extern DWORD USB_GetFrame (void); |
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extern void USB_ISR (void) __irq; |
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#endif /* __USBHW_H__ */ |
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