blob: 892e9a2d09831804284acba876a119d130c010f0 (
plain)
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
|
/*
ChibiOS - Copyright (C) 2006..2017 Giovanni Di Sirio
Copyright (C) 2017 Fabien Poussin (fabien.poussin (at) google's mail)
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in sramliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file hal_sram.c
* @brief SRAM Driver code.
*
* @addtogroup SRAM
* @{
*/
#include "hal.h"
#if HAL_USE_SRAM || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
#include "hal_sram_lld.h"
/**
* @brief SRAM Driver initialization.
* @note This function is implicitly invoked by @p halInit(), there is
* no need to explicitly initialize the driver.
*
* @init
*/
void sramInit(void) {
fsmcInit();
#if STM32_SRAM_USE_SRAM1
SRAMD1.sram = FSMCD1.sram1;
SRAMD1.state = SRAM_STOP;
sramObjectInit(&SRAMD1);
#endif /* STM32_SRAM_USE_SRAM1 */
#if STM32_SRAM_USE_SRAM2
SRAMD2.sram = FSMCD1.sram2;
SRAMD2.state = SRAM_STOP;
sramObjectInit(&SRAMD2);
#endif /* STM32_SRAM_USE_SRAM2 */
#if STM32_SRAM_USE_SRAM3
SRAMD3.sram = FSMCD1.sram3;
SRAMD3.state = SRAM_STOP;
sramObjectInit(&SRAMD3);
#endif /* STM32_SRAM_USE_SRAM3 */
#if STM32_SRAM_USE_SRAM4
SRAMD4.sram = FSMCD1.sram4;
SRAMD4.state = SRAM_STOP;
sramObjectInit(&SRAMD4);
#endif /* STM32_SRAM_USE_SRAM4 */
}
/**
* @brief Initializes the standard part of a @p SRAMDriver structure.
*
* @param[out] sramp pointer to the @p SRAMDriver object
*
* @init
*/
void sramObjectInit(SRAMDriver *sramp) {
sramp->state = SRAM_STOP;
}
/**
* @brief Configures and activates the SRAM peripheral.
*
* @param[in] sramp pointer to the @p SRAMDriver object
* @param[in] config pointer to the @p SRAMConfig object
*
* @api
*/
void sramStart(SRAMDriver *sramp, const SRAMConfig *config) {
osalDbgCheck((sramp != NULL) && (config != NULL));
if (FSMCD1.state == FSMC_STOP)
fsmcStart(&FSMCD1);
osalSysLock();
osalDbgAssert((sramp->state == SRAM_STOP) || (sramp->state == SRAM_READY),
"invalid state");
sram_lld_start(sramp, config);
sramp->state = SRAM_READY;
osalSysUnlock();
}
/**
* @brief Deactivates the SRAM peripheral.
*
* @param[in] sramp pointer to the @p SRAMDriver object
*
* @api
*/
void sramStop(SRAMDriver *sramp) {
osalDbgCheck(sramp != NULL);
osalSysLock();
osalDbgAssert((sramp->state == SRAM_STOP) || (sramp->state == SRAM_READY),
"invalid state");
sram_lld_stop(sramp);
sramp->state = SRAM_STOP;
osalSysUnlock();
}
#endif /* HAL_USE_SRAM */
/** @} */
|
