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Persistent storage for STM32 RTCV1 driver. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@12438 110e8d01-0319-4d1e-a829-52ad28d1bb01
This commit is contained in:
gdisirio 2018-11-25 12:02:19 +00:00
parent 7a0857aa5d
commit b8a4c26a9c
8 changed files with 93 additions and 20 deletions
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13
os/hal/include/hal_persistent.h
View File

@ -118,6 +118,17 @@ typedef struct {
*/
#define getBasePersistentStorage(ip) ((BasePersistentStorage *)&(ip)->vmt)
/**
* @brief Get storage size.
*
* @param[in] ip pointer to a @p BasePersistentStorage or derived class
* @return The storage size in bytes.
*
* @api
*/
#define psGetStorageSize(ip) \
(ip)->vmt->getsize(ip)
/**
* @brief Read operation.
*
@ -140,7 +151,7 @@ typedef struct {
*
* @param[in] ip pointer to a @p BasePersistentStorage or derived class
* @param[in] offset persistent storage offset
* @param[in] n number of bytes to be programmed
* @param[in] n number of bytes to be written
* @param[in] wp pointer to the data buffer
* @return An error code.
* @retval PS_NO_ERROR if there is no erase operation in progress.

59
os/hal/ports/STM32/LLD/RTCv2/hal_rtc_lld.c
View File

@ -200,33 +200,59 @@ static uint32_t rtc_encode_date(const RTCDateTime *timespec) {
}
#if RTC_HAS_STORAGE == TRUE
/* TODO: Map on the backup SRAM on devices that have it.*/
static size_t _read(void *instance, ps_offset_t offset,
size_t n, uint8_t *rp) {
static size_t _getsize(void *instance) {
(void)instance;
(void)offset;
(void)n;
(void)rp;
return 0;
return (size_t)STM32_RTC_STORAGE_SIZE;
}
static ps_error_t _read(void *instance, ps_offset_t offset,
size_t n, uint8_t *rp) {
volatile uint32_t *bkpr = &((RTCDriver *)instance)->rtc->BKP0R;
unsigned i;
chDbgCheck((instance != NULL) && (rp != NULL));
chDbgCheck((n > 0U) && (n <= STM32_RTC_STORAGE_SIZE));
chDbgCheck((offset < STM32_RTC_STORAGE_SIZE) &&
(offset + n <= STM32_RTC_STORAGE_SIZE));
for (i = 0; i < (unsigned)n; i++) {
unsigned index = ((unsigned)offset + i) / sizeof (uint32_t);
unsigned shift = ((unsigned)offset + i) % sizeof (uint32_t);
*rp++ = (uint8_t)(bkpr[index] >> (shift * 8U));
}
return PS_NO_ERROR;
}
static ps_error_t _write(void *instance, ps_offset_t offset,
size_t n, const uint8_t *wp) {
volatile uint32_t *bkpr = &((RTCDriver *)instance)->rtc->BKP0R;
unsigned i;
(void)instance;
(void)offset;
(void)n;
(void)wp;
chDbgCheck((instance != NULL) && (wp != NULL));
chDbgCheck((n > 0U) && (n <= STM32_RTC_STORAGE_SIZE));
chDbgCheck((offset < STM32_RTC_STORAGE_SIZE) &&
(offset + n <= STM32_RTC_STORAGE_SIZE));
return 0;
for (i = 0; i < (unsigned)n; i++) {
unsigned index = ((unsigned)offset + i) / sizeof (uint32_t);
unsigned shift = ((unsigned)offset + i) % sizeof (uint32_t);
uint32_t regval = bkpr[index];
regval &= ~(0xFFU << (shift * 8U));
regval |= (uint32_t)*wp++ << (shift * 8U);
bkpr[index] = regval;
}
return PS_NO_ERROR;
}
/**
* @brief VMT for the RTC storage file interface.
*/
struct RTCDriverVMT _rtc_lld_vmt = {
(size_t)0,
_getsize, _read, _write
};
#endif /* RTC_HAS_STORAGE == TRUE */
@ -493,10 +519,11 @@ void rtc_lld_init(void) {
rtc_enter_init();
RTCD1.rtc->CR = STM32_RTC_CR_INIT;
RTCD1.rtc->ISR = RTC_ISR_INIT; /* Clearing all but RTC_ISR_INIT. */
RTCD1.rtc->PRER = STM32_RTC_PRER_BITS;
RTCD1.rtc->PRER = STM32_RTC_PRER_BITS;
RTCD1.rtc->CR = STM32_RTC_CR_INIT;
RTCD1.rtc->TAMPCR = STM32_RTC_TAMPCR_INIT;
RTCD1.rtc->ISR = RTC_ISR_INIT; /* Clearing all but RTC_ISR_INIT. */
RTCD1.rtc->PRER = STM32_RTC_PRER_BITS;
RTCD1.rtc->PRER = STM32_RTC_PRER_BITS;
rtc_exit_init();
}

11
os/hal/ports/STM32/LLD/RTCv2/hal_rtc_lld.h
View File

@ -51,7 +51,7 @@
/**
* @brief Presence of a local persistent storage.
*/
#define RTC_HAS_STORAGE FALSE
#define RTC_HAS_STORAGE TRUE
/** @} */
/**
@ -115,6 +115,15 @@
#if !defined(STM32_RTC_CR_INIT) || defined(__DOXYGEN__)
#define STM32_RTC_CR_INIT 0
#endif
/**
* @brief RTC TAMPCR register initialization value.
* @note Use this value to initialize features not directly handled by
* the RTC driver.
*/
#if !defined(STM32_RTC_TAMPCR_INIT) || defined(__DOXYGEN__)
#define STM32_RTC_TAMPCR_INIT 0
#endif
/** @} */
/*===========================================================================*/

1
os/hal/ports/STM32/STM32L4xx+/stm32_registry.h
View File

@ -46,6 +46,7 @@
#define STM32_RTC_HAS_SUBSECONDS TRUE
#define STM32_RTC_HAS_PERIODIC_WAKEUPS TRUE
#define STM32_RTC_NUM_ALARMS 2
#define STM32_RTC_STORAGE_SIZE 128
#define STM32_RTC_TAMP_STAMP_HANDLER Vector48
#define STM32_RTC_WKUP_HANDLER Vector49
#define STM32_RTC_ALARM_HANDLER VectorE4

1
os/hal/ports/STM32/STM32L4xx/stm32_registry.h
View File

@ -46,6 +46,7 @@
#define STM32_RTC_HAS_SUBSECONDS TRUE
#define STM32_RTC_HAS_PERIODIC_WAKEUPS TRUE
#define STM32_RTC_NUM_ALARMS 2
#define STM32_RTC_STORAGE_SIZE 128
#define STM32_RTC_TAMP_STAMP_HANDLER Vector48
#define STM32_RTC_WKUP_HANDLER Vector49
#define STM32_RTC_ALARM_HANDLER VectorE4

1
readme.txt
View File

@ -75,6 +75,7 @@
*****************************************************************************
*** Next ***
- NEW: Added persistent storage interface to the STM32 RTCv2 driver.
- NEW: STM32 RTCv2 driver now supports callbacks on events.
- NEW: Added an EXTI helper driver for STM32.
- NEW: Added demo for STM32L4R9I-Discovery board.

2
testhal/STM32/multi/RTC/debug/STM32-RTC (Select ELF file)(OpenOCD, Just Run).launch
View File

@ -33,7 +33,7 @@
<intAttribute key="org.eclipse.cdt.launch.ATTR_BUILD_BEFORE_LAUNCH_ATTR" value="2"/>
<stringAttribute key="org.eclipse.cdt.launch.COREFILE_PATH" value=""/>
<stringAttribute key="org.eclipse.cdt.launch.DEBUGGER_REGISTER_GROUPS" value=""/>
<stringAttribute key="org.eclipse.cdt.launch.FORMAT" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&lt;contentList&gt;&lt;content id=&quot;xPSR-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;ISR-rtc-rtcp-rtc_lld_get_time-(format)&quot; val=&quot;4&quot;/&gt;&lt;/contentList&gt;"/>
<stringAttribute key="org.eclipse.cdt.launch.FORMAT" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&lt;contentList&gt;&lt;content id=&quot;xPSR-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;ISR-rtc-rtcp-rtc_lld_get_time-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;regval-_write-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;*bkpr-bkpr-_read-(format)&quot; val=&quot;4&quot;/&gt;&lt;/contentList&gt;"/>
<stringAttribute key="org.eclipse.cdt.launch.GLOBAL_VARIABLES" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#10;&lt;globalVariableList/&gt;&#10;"/>
<stringAttribute key="org.eclipse.cdt.launch.MEMORY_BLOCKS" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#10;&lt;memoryBlockExpressionList&gt;&#10;&lt;memoryBlockExpressionItem&gt;&#10;&lt;expression text=&quot;0x40021004&quot;/&gt;&#10;&lt;/memoryBlockExpressionItem&gt;&#10;&lt;/memoryBlockExpressionList&gt;&#10;"/>
<stringAttribute key="org.eclipse.cdt.launch.PROGRAM_NAME" value="${selected_resource_loc}"/>

25
testhal/STM32/multi/RTC/main.c
View File

@ -39,7 +39,7 @@ static void cmd_date(BaseSequentialStream *chp, int argc, char *argv[]) {
}
rtcGetTime(&RTCD1, &timespec);
chprintf(chp, "%02d:%02d:%02d (%02d) - %02d-%02d-%04d\r\n",
chprintf(chp, "%02d:%02d:%02d:%03d - %02d-%02d-%04d\r\n",
timespec.millisecond / 3600000U,
(timespec.millisecond % 3600000U) / 60000U,
(timespec.millisecond % 60000U) / 1000U,
@ -49,8 +49,30 @@ static void cmd_date(BaseSequentialStream *chp, int argc, char *argv[]) {
timespec.year + 1980U);
}
static void cmd_storage(BaseSequentialStream *chp, int argc, char *argv[]) {
size_t storage_size = psGetStorageSize(&RTCD1);
ps_offset_t i;
(void)argv;
if (argc > 0) {
chprintf(chp, "Usage: storage\r\n");
return;
}
for (i = 0U; i < (ps_offset_t)storage_size; i++) {
uint8_t val;
psRead(&RTCD1, i, 1U, &val);
chprintf(chp, "%02x ", val);
if (((i + 1) & 15) == 0U) {
chprintf(chp, "\r\n");
}
}
}
static const ShellCommand commands[] = {
{"date", cmd_date},
{"storage", cmd_storage},
{NULL, NULL}
};
@ -140,6 +162,7 @@ int main(void) {
rtcSetAlarm(&RTCD1, 0, &alarm1);
rtcSetAlarm(&RTCD1, 1, &alarm2);
rtcSetCallback(&RTCD1, alarmcb);
psWrite(&RTCD1, 0U, 12U, (const uint8_t *)"Hello World!");
/* Normal main() thread activity, spawning shells.*/
while (true) {