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DataRam.h
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1 /*
2  * @brief USB Mass Storage data RAM module
3  *
4  * @note
5  * Copyright(C) NXP Semiconductors, 2012
6  * All rights reserved.
7  *
8  * @par
9  * Software that is described herein is for illustrative purposes only
10  * which provides customers with programming information regarding the
11  * LPC products. This software is supplied "AS IS" without any warranties of
12  * any kind, and NXP Semiconductors and its licensor disclaim any and
13  * all warranties, express or implied, including all implied warranties of
14  * merchantability, fitness for a particular purpose and non-infringement of
15  * intellectual property rights. NXP Semiconductors assumes no responsibility
16  * or liability for the use of the software, conveys no license or rights under any
17  * patent, copyright, mask work right, or any other intellectual property rights in
18  * or to any products. NXP Semiconductors reserves the right to make changes
19  * in the software without notification. NXP Semiconductors also makes no
20  * representation or warranty that such application will be suitable for the
21  * specified use without further testing or modification.
22  *
23  * @par
24  * Permission to use, copy, modify, and distribute this software and its
25  * documentation is hereby granted, under NXP Semiconductors' and its
26  * licensor's relevant copyrights in the software, without fee, provided that it
27  * is used in conjunction with NXP Semiconductors microcontrollers. This
28  * copyright, permission, and disclaimer notice must appear in all copies of
29  * this code.
30  */
31 
37 #ifndef _DATARAM_H_
38 #define _DATARAM_H_
39 /* Includes: */
40  #include "../MassStorage.h"
41  #include "../Descriptors.h"
42  #include "USB.h"
43 
51 /* Defines: */
53  #if defined(CHIP_LPC18XX) || defined(CHIP_LPC43XX)
54  #define DATA_RAM_START_ADDRESS 0x20000000
55  #define DATA_RAM_PHYSICAL_SIZE 0x2000
56  #define DATA_RAM_VIRTUAL_SIZE 0x2000
57  #define DATA_RAM_BLOCK_SIZE 0x200
58  #endif
59  #if defined(CHIP_LPC175X_6X)
60  #define DATA_RAM_START_ADDRESS 0x20080000
61  #define DATA_RAM_PHYSICAL_SIZE 0x4000
62  #define DATA_RAM_VIRTUAL_SIZE 0x4000
63  #endif
64  #if defined(CHIP_LPC177X_8X)
65  #define DATA_RAM_START_ADDRESS 0x20040000
66  #define DATA_RAM_PHYSICAL_SIZE 0x4000
67  #define DATA_RAM_VIRTUAL_SIZE 0x4000
68  #endif
69  #if defined(CHIP_LPC11UXX)
70  #define DATA_RAM_START_ADDRESS 0x20080000
71  #define DATA_RAM_PHYSICAL_SIZE 0xa00
72  #define DATA_RAM_VIRTUAL_SIZE 0x4000 /* fake capacity to trick windows */
73  #endif
74 
75  #define VIRTUAL_MEMORY_BYTES DATA_RAM_VIRTUAL_SIZE
76 
80  #define VIRTUAL_MEMORY_BLOCK_SIZE 512
81 
85  #define VIRTUAL_MEMORY_BLOCKS (VIRTUAL_MEMORY_BYTES / VIRTUAL_MEMORY_BLOCK_SIZE)
86 
97 void DataRam_WriteBlocks(USB_ClassInfo_MS_Device_t *const MSInterfaceInfo,
98  const uint32_t BlockAddress,
99  uint16_t TotalBlocks);
100 
111 void DataRam_ReadBlocks(USB_ClassInfo_MS_Device_t *const MSInterfaceInfo,
112  const uint32_t BlockAddress,
113  uint16_t TotalBlocks);
114 
120 void DataRam_Initialize(void);
121 
130 uint32_t MassStorage_GetAddressInImage(uint32_t startblock, uint16_t requestblocks, uint16_t *availableblocks);
131 
136 #endif