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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 196 | killagreg | 1 | /******************** (C) COPYRIGHT 2008 STMicroelectronics ******************** |
| 1 | ingob | 2 | * File Name : usb_mem.c |
| 3 | * Author : MCD Application Team |
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| 196 | killagreg | 4 | * Version : V4.0.0 |
| 5 | * Date : 09/29/2008 |
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| 6 | * Description : Utility functions for memory transfers to/from PMA. |
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| 1 | ingob | 7 | ******************************************************************************** |
| 196 | killagreg | 8 | * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS |
| 1 | ingob | 9 | * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. |
| 10 | * AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, |
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| 11 | * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE |
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| 12 | * CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING |
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| 13 | * INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. |
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| 14 | *******************************************************************************/ |
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| 15 | |||
| 16 | /* Includes ------------------------------------------------------------------*/ |
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| 17 | #include "usb_lib.h" |
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| 18 | #include "usb_mem.h" |
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| 19 | #include "usb_conf.h" |
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| 20 | /* Private typedef -----------------------------------------------------------*/ |
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| 21 | /* Private define ------------------------------------------------------------*/ |
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| 22 | /* Private macro -------------------------------------------------------------*/ |
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| 23 | /* Private variables ---------------------------------------------------------*/ |
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| 24 | /* Private function prototypes -----------------------------------------------*/ |
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| 25 | /* Private functions ---------------------------------------------------------*/ |
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| 26 | |||
| 27 | /******************************************************************************* |
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| 28 | * Function Name : UserToPMABufferCopy |
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| 29 | * Description : Copy a buffer from user memory area to packet memory area (PMA) |
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| 196 | killagreg | 30 | * Input : - pbUsrBuf: pointer to user memory area. |
| 31 | * - wPMABufAddr: address into PMA. |
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| 32 | * - wNBytes: no. of bytes to be copied. |
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| 33 | * Output : None. |
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| 34 | * Return : None . |
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| 1 | ingob | 35 | *******************************************************************************/ |
| 196 | killagreg | 36 | void UserToPMABufferCopy(u8 *pbUsrBuf, u16 wPMABufAddr, u16 wNBytes) |
| 1 | ingob | 37 | { |
| 196 | killagreg | 38 | #ifdef STR7xx /* STR7xx family */ |
| 39 | u32 n = (wNBytes + 1) >> 1; /* n=(wNBytes+1)/2 */ |
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| 40 | u32 i, temp1, temp2; |
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| 1 | ingob | 41 | u16 *pdwVal; |
| 196 | killagreg | 42 | pdwVal = (u16 *)(wPMABufAddr * 2 + PMAAddr); |
| 43 | |||
| 44 | for (i = n; i != 0; i--) |
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| 1 | ingob | 45 | { |
| 196 | killagreg | 46 | temp1 = (u16) * pbUsrBuf; |
| 47 | pbUsrBuf++; |
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| 48 | temp2 = temp1 | (u16) * pbUsrBuf << 8; |
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| 49 | *pdwVal++ = temp2; |
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| 50 | pdwVal++; |
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| 51 | pbUsrBuf++; |
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| 1 | ingob | 52 | } |
| 196 | killagreg | 53 | #endif /* End of STR7xx family*/ |
| 1 | ingob | 54 | |
| 196 | killagreg | 55 | #ifdef STR91x /*STR91x family*/ |
| 56 | |||
| 57 | u32 n = (wNBytes + 3) >> 2; /*n=(wNBytes+1)/4*/ |
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| 58 | u32 i, temp1, temp2, temp3, temp4; |
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| 59 | u32 *pdwVal; |
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| 60 | pdwVal = (u32 *)(PMAAddr + (u32)((wPMABufAddr))); |
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| 61 | for (i = n; i != 0; i--) |
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| 62 | { |
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| 63 | temp1 = (u32) * pbUsrBuf; |
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| 64 | temp2 = temp1 | (u32) * (pbUsrBuf + 1) << 8; |
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| 65 | temp3 = temp2 | (u32) * (pbUsrBuf + 2) << 16; |
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| 66 | temp4 = temp3 | (u32) * (pbUsrBuf + 3) << 24; |
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| 67 | pbUsrBuf += 4; |
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| 68 | *pdwVal = temp4; |
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| 69 | |||
| 70 | pdwVal++; |
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| 71 | } |
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| 72 | #endif /* End of STR91x family*/ |
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| 1 | ingob | 73 | } |
| 74 | /******************************************************************************* |
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| 75 | * Function Name : PMAToUserBufferCopy |
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| 76 | * Description : Copy a buffer from user memory area to packet memory area (PMA) |
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| 196 | killagreg | 77 | * Input : - pbUsrBuf = pointer to user memory area. |
| 78 | * - wPMABufAddr = address into PMA. |
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| 79 | * - wNBytes = no. of bytes to be copied. |
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| 80 | * Output : None. |
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| 81 | * Return : None. |
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| 1 | ingob | 82 | *******************************************************************************/ |
| 196 | killagreg | 83 | void PMAToUserBufferCopy(u8 *pbUsrBuf, u16 wPMABufAddr, u16 wNBytes) |
| 1 | ingob | 84 | { |
| 196 | killagreg | 85 | #ifdef STR7xx /*STR7xx family*/ |
| 86 | u32 n = (wNBytes + 1) >> 1;/* /2*/ |
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| 87 | u32 i; |
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| 88 | u32 *pdwVal; |
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| 89 | pdwVal = (u32 *)(wPMABufAddr * 2 + PMAAddr); |
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| 90 | for (i = n; i != 0; i--) |
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| 91 | { |
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| 92 | *pbUsrBuf++ = *(u8*)pdwVal; |
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| 93 | *pbUsrBuf++ = *((u8*)pdwVal + 1); |
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| 94 | pdwVal ++; |
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| 95 | } |
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| 96 | |||
| 97 | #endif /* End of STR7xx family*/ |
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| 98 | |||
| 99 | #ifdef STR91x /*STR91x family*/ |
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| 100 | u8 *pbVal; |
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| 101 | u16 wNTrasf = wNBytes; |
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| 102 | if ((wNBytes) == 0) |
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| 103 | { |
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| 104 | return; |
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| 105 | } |
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| 106 | pbVal = (u8 *)(PMAAddr + wPMABufAddr); |
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| 107 | while (1) |
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| 108 | { |
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| 109 | *pbUsrBuf++ = *pbVal++; |
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| 110 | if ((--wNTrasf) == 0) |
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| 1 | ingob | 111 | { |
| 196 | killagreg | 112 | return; |
| 1 | ingob | 113 | } |
| 196 | killagreg | 114 | *pbUsrBuf++ = *pbVal++; |
| 115 | if ((--wNTrasf) == 0) |
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| 1 | ingob | 116 | { |
| 196 | killagreg | 117 | return; |
| 118 | } |
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| 119 | } |
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| 120 | #endif /* End of STR91x family*/ |
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| 1 | ingob | 121 | } |
| 196 | killagreg | 122 | /******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/ |
| 1 | ingob | 123 |