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| 1 | /******************** (C) COPYRIGHT 2006 STMicroelectronics ******************** |
1 | /******************** (C) COPYRIGHT 2008 STMicroelectronics ******************** |
| 2 | * File Name : 91x_dma.c |
2 | * File Name : 91x_dma.c |
| 3 | * Author : MCD Application Team |
3 | * Author : MCD Application Team |
| - | 4 | * Version : V2.1 |
|
| 4 | * Date First Issued : 05/18/2006 : Version 1.0 |
5 | * Date : 12/22/2008 |
| 5 | * Description : This file provides all the DMA software functions |
6 | * Description : This file provides all the DMA firmware functions |
| 6 | * needed to access all DMA registers. |
7 | * needed to access all DMA registers. |
| 7 | ******************************************************************************** |
8 | ******************************************************************************** |
| 8 | * History:v 1.0 |
- | |
| 9 | * 05/22/2007 : Version 1.2 |
- | |
| 10 | * 05/24/2006 : Version 1.1 |
- | |
| 11 | * 05/18/2006 : Version 1.0 |
- | |
| 12 | ******************************************************************************** |
- | |
| 13 | * THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS |
9 | * THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS |
| 14 | * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. |
10 | * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. |
| 15 | * AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, |
11 | * AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, |
| 16 | * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE |
12 | * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE |
| 17 | * CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING |
13 | * CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING |
| Line 29... | Line 25... | ||
| 29 | /* Private variables ---------------------------------------------------------*/ |
25 | /* Private variables ---------------------------------------------------------*/ |
| Line 30... | Line 26... | ||
| 30 | 26 | ||
| Line 31... | Line 27... | ||
| 31 | 27 | ||
| 32 | /* DMA Masks "used" only in this module */ |
28 | /* DMA Masks "used" only in this module */ |
| 33 | 29 | ||
| 34 | #define DMA_Width_DES_MASK 0xFF1FFFFF |
30 | #define DMA_Width_DES_MASK 0xFF1FFFFF |
| 35 | #define DMA_Width_SRC_MASK 0xFFE3FFFF |
31 | #define DMA_Width_SRC_MASK 0xFFE3FFFF |
| 36 | #define DMA_Bst_DES_MASK 0xFFFC7FFF |
32 | #define DMA_Bst_DES_MASK 0xFFFC7FFF |
| 37 | #define DMA_Bst_SRC_MASK 0xFFFF8FFF |
33 | #define DMA_Bst_SRC_MASK 0xFFFF8FFF |
| 38 | #define DMA_FlowCntrl_Mask 0xFFFFC7FF |
34 | #define DMA_FlowCntrl_Mask 0xFFFFC7FF |
| 39 | #define DMA_TrsfSisze_Mask 0xFFFFF000 |
35 | #define DMA_TrsfSisze_Mask 0xFFFFF000 |
| 40 | #define SRC_Mask 0xFFFFFFE1 |
36 | #define SRC_Mask 0xFFFFFFE1 |
| 41 | #define DES_Mask 0xFFFFFC3F |
37 | #define DES_Mask 0xFFFFFC3F |
| Line 48... | Line 44... | ||
| 48 | #define DMA_CacheChannel 0x40000000 |
44 | #define DMA_CacheChannel 0x40000000 |
| 49 | #define DMA_ChannelActive 0x00020000 |
45 | #define DMA_ChannelActive 0x00020000 |
| 50 | #define DMA_Enable 0x00000001 |
46 | #define DMA_Enable 0x00000001 |
| 51 | #define DMA_ChannelEnable 0x00000001 |
47 | #define DMA_ChannelEnable 0x00000001 |
| Line -... | Line 48... | ||
| - | 48 | ||
| Line -... | Line 49... | ||
| - | 49 | /*LLI Masks used for linked list's control word stucture*/ |
|
| - | 50 | ||
| - | 51 | #define DMA_SrcIncrement_MASK 0xFBFFFFFF |
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| - | 52 | #define DMA_DesIncrement_MASK 0xF7FFFFFF |
|
| - | 53 | #define DMA_CacheableAccess_MASK 0xEFFFFFFF |
|
| - | 54 | #define DMA_BufferableAccess_MASK 0xDFFFFFFF |
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| - | 55 | #define DMA_PrivilegedAccess_MASK 0xBFFFFFFF |
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| Line 52... | Line 56... | ||
| 52 | 56 | #define DMA_TCInterrupt_MASK 0x7FFFFFFF |
|
| 53 | 57 | ||
| Line 1121... | Line 1125... | ||
| 1121 | 1125 | ||
| Line -... | Line 1126... | ||
| - | 1126 | ||
| - | 1127 | } |
|
| - | 1128 | ||
| - | 1129 | ||
| - | 1130 | /******************************************************************************** |
|
| - | 1131 | * Function Name : DMA_LLI_CCR_Init |
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| - | 1132 | * Description : Return linked list's control word according to the specified |
|
| - | 1133 | * parameters in the LLI_CCR_InitStruct . |
|
| - | 1134 | * |
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| - | 1135 | * Input : -LLI_CCR_InitStruct: pointer to a LLI_CCR_InitTypeDef structure |
|
| - | 1136 | * ( Structure Config to be load in DMA Registers). . |
|
| - | 1137 | * |
|
| - | 1138 | * Output : None. |
|
| - | 1139 | * |
|
| - | 1140 | * Return : Control word |
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| - | 1141 | *******************************************************************************/ |
|
| - | 1142 | ||
| - | 1143 | ||
| - | 1144 | u32 DMA_LLI_CCR_Init(LLI_CCR_InitTypeDef * LLI_CCR_InitStruct) |
|
| - | 1145 | ||
| - | 1146 | { |
|
| - | 1147 | u32 CC=0; |
|
| - | 1148 | /* Set The Destination width */ |
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| - | 1149 | CC &= DMA_Width_DES_MASK; |
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| - | 1150 | CC |= LLI_CCR_InitStruct->LLI_DesWidth; |
|
| - | 1151 | ||
| - | 1152 | /* Set The Source width */ |
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| - | 1153 | CC &= DMA_Width_SRC_MASK; |
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| - | 1154 | CC |= LLI_CCR_InitStruct->LLI_SrcWidth; |
|
| - | 1155 | ||
| - | 1156 | /* Set The Burst Size for the Destination */ |
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| - | 1157 | CC &= DMA_Bst_DES_MASK; |
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| - | 1158 | CC |= LLI_CCR_InitStruct->LLI_DesBstSize; |
|
| - | 1159 | ||
| - | 1160 | /* Set The Burst Size for the Source */ |
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| - | 1161 | CC &= DMA_Bst_SRC_MASK; |
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| - | 1162 | CC |= LLI_CCR_InitStruct->LLI_SrcBstSize; |
|
| - | 1163 | ||
| - | 1164 | /* Initialize The Transfer Size for the Source */ |
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| - | 1165 | CC &= DMA_TrsfSisze_Mask; |
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| - | 1166 | CC |= LLI_CCR_InitStruct->LLI_TrsfSize; |
|
| - | 1167 | ||
| - | 1168 | /* Enable or disable source increment*/ |
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| - | 1169 | CC &= DMA_SrcIncrement_MASK ; |
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| - | 1170 | CC |= LLI_CCR_InitStruct->LLI_SrcIncrement; |
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| - | 1171 | ||
| - | 1172 | /* Enable or disable destination increment*/ |
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| - | 1173 | CC &= DMA_DesIncrement_MASK ; |
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| - | 1174 | CC |= LLI_CCR_InitStruct->LLI_DesIncrement; |
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| - | 1175 | ||
| - | 1176 | /* Enable or disable cacheable access*/ |
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| - | 1177 | CC &= DMA_CacheableAccess_MASK; |
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| - | 1178 | CC |= LLI_CCR_InitStruct->LLI_PROT0; |
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| - | 1179 | ||
| - | 1180 | /* Enable or disable bufferable access*/ |
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| - | 1181 | CC &= DMA_BufferableAccess_MASK; |
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| - | 1182 | CC |= LLI_CCR_InitStruct->LLI_PROT1; |
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| - | 1183 | ||
| - | 1184 | /* Enable or disablePrivileged mode*/ |
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| - | 1185 | CC &= DMA_PrivilegedAccess_MASK; |
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| - | 1186 | CC |= LLI_CCR_InitStruct->LLI_PROT2; |
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| - | 1187 | ||
| - | 1188 | /* Enable or disable Terminal count interrupt*/ |
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| - | 1189 | CC &= DMA_TCInterrupt_MASK ; |
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| 1122 | 1190 | CC |= LLI_CCR_InitStruct->LLI_TCInterrupt; |
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