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
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
|
/*
* Copyright (c) 2013 - 2015, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Freescale Semiconductor, Inc. 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 HOLDER 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.
*/
#include "fsl_smc_hal.h"
#if FSL_FEATURE_SOC_SMC_COUNT
/*******************************************************************************
* Definitions
******************************************************************************/
// Definitions for macros
#if FSL_FEATURE_SMC_USE_VLLSCTRL_REG
#define SMC_SET_STOP_SUBMODE SMC_BWR_VLLSCTRL_VLLSM
#define SMC_SET_PORPO SMC_BWR_VLLSCTRL_PORPO
#define SMC_SET_RAM2PO SMC_BWR_VLLSCTRL_RAM2PO
#else
#define SMC_SET_PORPO SMC_BWR_STOPCTRL_PORPO
#define SMC_SET_RAM2PO SMC_BWR_STOPCTRL_RAM2PO
#if FSL_FEATURE_SMC_USE_STOPCTRL_VLLSM
#define SMC_SET_STOP_SUBMODE SMC_BWR_STOPCTRL_VLLSM
#else
#define SMC_SET_STOP_SUBMODE SMC_BWR_STOPCTRL_LLSM
#endif
#endif
/*******************************************************************************
* Code
******************************************************************************/
/*FUNCTION**********************************************************************
*
* Function Name : SMC_HAL_SetPowerModeRun
* Description : Set RUN mode, this function is used internally.
*
*END**************************************************************************/
static void SMC_HAL_SetPowerModeRun(SMC_Type * base)
{
SMC_BWR_PMCTRL_RUNM(base, kSmcRun);
while (kStatRun != SMC_HAL_GetStat(base)) { }
}
/*FUNCTION**********************************************************************
*
* Function Name : SMC_HAL_SetPowerModeVlpr
* Description : Set to VLPR mode, this function is used internally.
*
*END**************************************************************************/
static void SMC_HAL_SetPowerModeVlpr(SMC_Type * base)
{
SMC_BWR_PMCTRL_RUNM(base, kSmcVlpr);
while (kStatVlpr != SMC_HAL_GetStat(base)) { }
}
#if FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE
/*FUNCTION**********************************************************************
*
* Function Name : SMC_HAL_SetPowerModeHsrun
* Description : Set HSRUN mode, this function is used internally.
*
*END**************************************************************************/
static void SMC_HAL_SetPowerModeHsrun(SMC_Type * base)
{
SMC_BWR_PMCTRL_RUNM(base, kSmcHsrun);
while (kStatHsrun != SMC_HAL_GetStat(base)) { }
}
#endif
/*FUNCTION**********************************************************************
*
* Function Name : SMC_HAL_SetMode
* Description : Config the power mode
* This function configures the power mode base on configuration structure, if
* could not switch to the target mode directly, this function could check
* internally and choose the right path.
*
*END**************************************************************************/
smc_hal_error_code_t SMC_HAL_SetMode(SMC_Type * base,
const smc_power_mode_config_t *powerModeConfig)
{
volatile uint32_t dummyRead;
smc_stop_mode_t stopMode;
power_mode_stat_t curPowerMode;
curPowerMode = SMC_HAL_GetStat(base);
#if FSL_FEATURE_SMC_HAS_LPWUI
/* Update LPWUI. Only when target mode is VLPR/VLPS/VLPW. */
if (((kPowerModeVlpr | kPowerModeVlpw | kPowerModeVlps) & (uint32_t)powerModeConfig->powerModeName)
&& (powerModeConfig->lpwuiOptionValue != (smc_lpwui_option_t)SMC_BRD_PMCTRL_LPWUI(base)))
{
SMC_HAL_SetPowerModeRun(base);
SMC_BWR_PMCTRL_LPWUI(base, powerModeConfig->lpwuiOptionValue);
/*
* Why set to VLPR here:
* 1. If target mode is VLPS, then LPWUI will be bypassed if enter VLPS
* from RUN directly. So first change to VLPR to make sure LPWUI is
* not bypassed.
* 2. If target mode is VLPR/VLPW, it is OK to set to VLPR first.
*/
SMC_HAL_SetPowerModeVlpr(base);
curPowerMode = kStatVlpr;
}
#endif
/*
* Step 1: If could not reach target mode directly, change to the mode that
* could reach.
*/
switch (curPowerMode)
{
// If current mode is RUN, target mode is VLPW, change to VLPR first.
case kStatRun:
if (kPowerModeVlpw & (uint32_t)powerModeConfig->powerModeName)
{
SMC_HAL_SetPowerModeVlpr(base);
}
break;
// If current mode is VLPR, target mode is HSRUN/STOP/WAIT, change to RUN first.
case kStatVlpr:
if ((kPowerModeStop
| kPowerModeWait
#if FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE
| kPowerModeHsrun
#endif
) & (uint32_t)powerModeConfig->powerModeName)
{
SMC_HAL_SetPowerModeRun(base);
}
break;
#if FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE
/* If current mode is HSRUN, target mode is not HSRUN and RUN,
* change to RUN first, if target mode is VLPW, change to RUN mode,
* then change to VLPR mode.
*/
case kStatHsrun:
if (!((kPowerModeHsrun | kPowerModeRun) & (uint32_t)powerModeConfig->powerModeName))
{
SMC_HAL_SetPowerModeRun(base);
if (kPowerModeVlpw & (uint32_t)powerModeConfig->powerModeName)
{
SMC_HAL_SetPowerModeVlpr(base);
}
}
break;
#endif
default:
break;
}
// Step 2: Change to target mode.
switch (powerModeConfig->powerModeName)
{
case kPowerModeRun:
SMC_HAL_SetPowerModeRun(base);
break;
case kPowerModeVlpr:
SMC_HAL_SetPowerModeVlpr(base);
break;
#if FSL_FEATURE_SMC_HAS_HIGH_SPEED_RUN_MODE
case kPowerModeHsrun:
SMC_HAL_SetPowerModeHsrun(base);
break;
#endif
/* For wait modes. */
case kPowerModeWait:
case kPowerModeVlpw:
/* Clear the SLEEPDEEP bit to disable deep sleep mode - enter wait mode*/
SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk;
/*
* Ensure that all register writes associated with setting up the
* low power mode being entered have completed before the MCU enters
* the low power mode.
*/
dummyRead = SMC_RD_PMCTRL(base);
dummyRead = dummyRead;
__WFI();
break;
/* For stop modes. */
case kPowerModeStop:
case kPowerModeVlps:
#if FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE
case kPowerModeLls:
#endif
case kPowerModeVlls:
#if FSL_FEATURE_SMC_HAS_PSTOPO
SMC_BWR_STOPCTRL_PSTOPO(base, powerModeConfig->pstopOptionValue);
#endif
#if FSL_FEATURE_SMC_HAS_LPOPO
SMC_BWR_STOPCTRL_LPOPO(base, powerModeConfig->lpoOptionValue);
#endif
#if FSL_FEATURE_SMC_HAS_PORPO
SMC_SET_PORPO(base, powerModeConfig->porOptionValue);
#endif
#if FSL_FEATURE_SMC_HAS_RAM2_POWER_OPTION
SMC_SET_RAM2PO(base, powerModeConfig->ram2OptionValue);
#endif
if (kPowerModeStop == powerModeConfig->powerModeName)
{
stopMode = kSmcStop;
}
else if (kPowerModeVlps == powerModeConfig->powerModeName)
{
stopMode = kSmcVlps;
}
#if FSL_FEATURE_SMC_HAS_LOW_LEAKAGE_STOP_MODE
else if (kPowerModeLls == powerModeConfig->powerModeName)
{
stopMode = kSmcLls;
SMC_SET_STOP_SUBMODE(base, powerModeConfig->stopSubMode);
}
#endif
else
{
stopMode = kSmcVlls;
SMC_SET_STOP_SUBMODE(base, powerModeConfig->stopSubMode);
}
SMC_BWR_PMCTRL_STOPM(base, stopMode);
/* Set the SLEEPDEEP bit to enable deep sleep mode - enter stop mode*/
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
/*
* Ensure that all register writes associated with setting up the
* low power mode being entered have completed before the MCU enters
* the low power mode.
*/
dummyRead = SMC_RD_PMCTRL(base);
__WFI();
break;
default:
break;
}
return kSmcHalSuccess;
}
/*FUNCTION**********************************************************************
*
* Function Name : SMC_HAL_GetStat
* Description : Get the current power mode stat
* This function will return the current power mode stat. Once application is
* switching the power mode, it should always check the stat to make sure it
* runs into the specified mode or not. Also application will need to check
* this mode before switching to certain mode. The system will require that
* only certain mode could switch to other specific mode. Refer to the
* reference manual for details. Refer to _power_mode_stat for the meaning
* of the power stat
*
*END**************************************************************************/
power_mode_stat_t SMC_HAL_GetStat(SMC_Type * base)
{
return (power_mode_stat_t)SMC_RD_PMSTAT(base);
}
#endif
/*******************************************************************************
* EOF
******************************************************************************/
|
