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| Rev | Author | Line No. | Line |
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| 1 | ingob | 1 | /******************** (C) COPYRIGHT 2006 STMicroelectronics ******************** |
| 2 | * File Name : usb_mem.c |
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| 3 | * Author : MCD Application Team |
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| 4 | * Date First Issued : 10/27/2003 : V1.0 |
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| 5 | * Description : Utility functions for memory transfers to/from PMA |
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| 6 | ******************************************************************************** |
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| 7 | * History: |
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| 8 | * 09/18/2006 : V3.0 |
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| 9 | * 09/01/2006 : V2.0 |
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| 10 | * 10/27/2003 : V1.0 |
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| 11 | ******************************************************************************** |
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| 12 | * THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS |
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| 13 | * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. |
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| 14 | * AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, |
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| 15 | * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE |
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| 16 | * CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING |
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| 17 | * INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. |
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| 18 | *******************************************************************************/ |
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| 19 | |||
| 20 | /* Includes ------------------------------------------------------------------*/ |
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| 21 | #include "usb_lib.h" |
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| 22 | #include "usb_mem.h" |
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| 23 | #include "usb_conf.h" |
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| 24 | /* Private typedef -----------------------------------------------------------*/ |
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| 25 | /* Private define ------------------------------------------------------------*/ |
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| 26 | /* Private macro -------------------------------------------------------------*/ |
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| 27 | /* Private variables ---------------------------------------------------------*/ |
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| 28 | /* Extern variables ----------------------------------------------------------*/ |
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| 29 | /* Private function prototypes -----------------------------------------------*/ |
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| 30 | /* Private functions ---------------------------------------------------------*/ |
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| 31 | |||
| 32 | |||
| 33 | |||
| 34 | /******************************************************************************* |
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| 35 | * Function Name : UserToPMABufferCopy |
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| 36 | * Description : Copy a buffer from user memory area to packet memory area (PMA) |
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| 37 | * Input 1 : pbUsrBuf = pointer to user memory area |
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| 38 | * Input 2 : wPMABufAddr = address into PMA |
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| 39 | * Input 3 : wNBytes = no. of bytes to be copied |
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| 40 | * Output : None |
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| 41 | * Return : None |
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| 42 | *******************************************************************************/ |
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| 43 | void UserToPMABufferCopy(u8 *pbUsrBuf,u16 wPMABufAddr, u16 wNBytes) |
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| 44 | { |
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| 45 | #ifdef STR7xx /* STR7xx family */ |
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| 46 | u32 n= (wNBytes+1)>>1; /* n=(wNBytes+1)/2 */ |
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| 47 | u32 i,temp1,temp2; |
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| 48 | u16 *pdwVal; |
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| 49 | pdwVal = (u16 *)(wPMABufAddr*2 + PMAAddr); |
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| 50 | for (i = n; i!= 0; i--) |
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| 51 | { |
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| 52 | temp1 = (u16)*pbUsrBuf; |
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| 53 | pbUsrBuf++; |
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| 54 | temp2 = temp1 | (u16)*pbUsrBuf<<8; |
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| 55 | *pdwVal++ = temp2; |
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| 56 | pdwVal++; |
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| 57 | pbUsrBuf++; |
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| 58 | } |
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| 59 | #endif /* End of STR7xx family*/ |
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| 60 | |||
| 61 | #ifdef STR91x /*STR91x family*/ |
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| 62 | |||
| 63 | u32 n= (wNBytes+3)>>2; /*n=(wNBytes+1)/4*/ |
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| 64 | u32 i,temp1,temp2,temp3,temp4; |
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| 65 | u32 *pdwVal; |
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| 66 | pdwVal = (u32 *)(PMAAddr+(u32)((wPMABufAddr))); |
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| 67 | for (i=n; i!=0; i--) |
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| 68 | { |
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| 69 | temp1 = (u32)*pbUsrBuf; |
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| 70 | temp2 = temp1 | (u32)*(pbUsrBuf+1)<<8; |
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| 71 | temp3 = temp2 | (u32)*(pbUsrBuf+2)<<16; |
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| 72 | temp4 = temp3 | (u32)*(pbUsrBuf+3)<<24; |
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| 73 | pbUsrBuf+=4; |
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| 74 | *pdwVal = temp4; |
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| 75 | |||
| 76 | pdwVal++; |
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| 77 | } |
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| 78 | #endif /* End of STR91x family*/ |
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| 79 | } |
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| 80 | /******************************************************************************* |
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| 81 | * Function Name : PMAToUserBufferCopy |
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| 82 | * Description : Copy a buffer from user memory area to packet memory area (PMA) |
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| 83 | * Input 1 : pbUsrBuf = pointer to user memory area |
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| 84 | * Input 2 : wPMABufAddr = address into PMA |
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| 85 | * Input 3 : wNBytes = no. of bytes to be copied |
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| 86 | * Output : pbUsrBuf = pointer to user memory area with correct data |
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| 87 | * Return : None |
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| 88 | *******************************************************************************/ |
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| 89 | void PMAToUserBufferCopy(u8 *pbUsrBuf,u16 wPMABufAddr, u16 wNBytes) |
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| 90 | { |
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| 91 | #ifdef STR7xx /*STR7xx family*/ |
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| 92 | u32 n= (wNBytes+1)>>1;/* /2*/ |
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| 93 | u32 i; |
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| 94 | u32 *pdwVal; |
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| 95 | pdwVal = (u32 *)(wPMABufAddr*2 + PMAAddr); |
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| 96 | for (i = n; i!= 0; i--) |
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| 97 | { |
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| 98 | *(u16*)pbUsrBuf++ = *pdwVal++; |
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| 99 | pbUsrBuf++; |
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| 100 | } |
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| 101 | #endif /* End of STR7xx family*/ |
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| 102 | |||
| 103 | #ifdef STR91x /*STR91x family*/ |
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| 104 | u8 *pbVal; |
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| 105 | u16 wNTrasf=wNBytes; |
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| 106 | if((wNBytes) == 0) return; |
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| 107 | pbVal = (u8 *)(PMAAddr + wPMABufAddr); |
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| 108 | while(1) |
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| 109 | { |
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| 110 | *pbUsrBuf++ = *pbVal++; |
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| 111 | if((--wNTrasf) == 0) return; |
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| 112 | *pbUsrBuf++ = *pbVal++; |
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| 113 | if((--wNTrasf) == 0) return; |
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| 114 | } |
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| 115 | #endif /* End of STR91x family*/ |
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| 116 | } |
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| 117 | /******************* (C) COPYRIGHT 2006 STMicroelectronics *****END OF FILE****/ |
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| 118 |