1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/* --COPYRIGHT--,BSD
* Copyright (c) 2014, Texas Instruments Incorporated
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* --/COPYRIGHT--*/
//*****************************************************************************
//
// tlv.c - Driver for the tlv Module.
//
//*****************************************************************************
//*****************************************************************************
//
//! \addtogroup tlv_api tlv
//! @{
//
//*****************************************************************************
#include "inc/hw_regaccess.h"
#include "inc/hw_memmap.h"
#ifdef __MSP430_HAS_TLV__
#include "tlv.h"
#include <assert.h>
void TLV_getInfo(uint8_t tag,
uint8_t instance,
uint8_t *length,
uint16_t **data_address)
{
// TLV Structure Start Address
char *TLV_address = (char *)TLV_START;
while((TLV_address < (char *)TLV_END)
&& ((*TLV_address != tag) || instance) // check for tag and instance
&& (*TLV_address != TLV_TAGEND)) // do range check first
{
if(*TLV_address == tag)
{
// repeat till requested instance is reached
instance--;
}
// add (Current TAG address + LENGTH) + 2
TLV_address += *(TLV_address + 1) + 2;
}
// Check if Tag match happened..
if(*TLV_address == tag)
{
// Return length = Address + 1
*length = *(TLV_address + 1);
// Return address of first data/value info = Address + 2
*data_address = (uint16_t *)(TLV_address + 2);
}
// If there was no tag match and the end of TLV structure was reached..
else
{
// Return 0 for TAG not found
*length = 0;
// Return 0 for TAG not found
*data_address = 0;
}
}
uint16_t TLV_getDeviceType()
{
uint16_t *pDeviceType = (uint16_t *)TLV_DEVICE_ID_0;
// Return Value from TLV Table
return(pDeviceType[0]);
}
uint16_t TLV_getMemory(uint8_t instance)
{
uint8_t *pPDTAG;
uint8_t bPDTAG_bytes;
uint16_t count;
// set tag for word access comparison
instance *= 2;
// TLV access Function Call
// Get Peripheral data pointer
TLV_getInfo(TLV_PDTAG,
0,
&bPDTAG_bytes,
(uint16_t **)&pPDTAG
);
for(count = 0; count <= instance; count += 2)
{
if(pPDTAG[count] == 0)
{
// Return 0 if end reached
return(0);
}
if(count == instance)
{
return (pPDTAG[count] | pPDTAG[count + 1] << 8);
}
}
// Return 0: not found
return(0);
}
uint16_t TLV_getPeripheral(uint8_t tag,
uint8_t instance)
{
uint8_t *pPDTAG;
uint8_t bPDTAG_bytes;
uint16_t count = 0;
uint16_t pcount = 0;
// Get Peripheral data pointer
TLV_getInfo(TLV_PDTAG,
0,
&bPDTAG_bytes,
(uint16_t **)&pPDTAG
);
// read memory configuration from TLV to get offset for Peripherals
while(TLV_getMemory(count))
{
count++;
}
// get number of Peripheral entries
pcount = pPDTAG[count * 2 + 1];
// inc count to first Periperal
count++;
// adjust point to first address of Peripheral
pPDTAG += count * 2;
// set counter back to 0
count = 0;
// align pcount for work comparision
pcount *= 2;
// TLV access Function Call
for(count = 0; count <= pcount; count += 2)
{
if(pPDTAG[count + 1] == tag)
{
// test if required Peripheral is found
if(instance > 0)
{
// test if required instance is found
instance--;
}
else
{
// Return found data
return (pPDTAG[count] | pPDTAG[count + 1] << 8);
}
}
}
// Return 0: not found
return(0);
}
uint8_t TLV_getInterrupt(uint8_t tag)
{
uint8_t *pPDTAG;
uint8_t bPDTAG_bytes;
uint16_t count = 0;
uint16_t pcount = 0;
// Get Peripheral data pointer
TLV_getInfo(TLV_PDTAG,
0,
&bPDTAG_bytes,
(uint16_t **)&pPDTAG
);
// read memory configuration from TLV to get offset for Peripherals
while(TLV_getMemory(count))
{
count++;
}
pcount = pPDTAG[count * 2 + 1];
// inc count to first Periperal
count++;
// adjust point to first address of Peripheral
pPDTAG += (pcount + count) * 2;
// set counter back to 0
count = 0;
// TLV access Function Call
for(count = 0; count <= tag; count += 2)
{
if(pPDTAG[count] == 0)
{
// Return 0: not found/end of table
return(0);
}
if(count == tag)
{
// Return found data
return (pPDTAG[count]);
}
}
// Return 0: not found
return(0);
}
#endif
//*****************************************************************************
//
//! Close the doxygen group for tlv_api
//! @}
//
//*****************************************************************************
|
