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risc-v/esp32c3: Support ESP32-C3 RTC driver
This commit is contained in:
Chen Wen
committed by
Alan Carvalho de Assis
Alan Carvalho de Assis
parent
45672c269d
commit
dbf9c87a42
@@ -151,6 +151,7 @@ config ESP32C3_CPU_FREQ_MHZ
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config ESP32C3_RT_TIMER
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bool "Real-time Timer"
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default n
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select ESP32C3_TIMER0
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config ESP32C3_DISABLE_STDC_ATOMIC
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bool "Disable standard C atomic"
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@@ -146,6 +146,10 @@ ifeq ($(CONFIG_ARCH_USE_MODULE_TEXT),y)
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CHIP_CSRCS += esp32c3_modtext.c
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endif
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ifeq ($(CONFIG_RTC_DRIVER),y)
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CHIP_CSRCS += esp32c3_rtc_lowerhalf.c
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endif
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ifeq ($(CONFIG_ESP32C3_WIRELESS),y)
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WIRELESS_DRV_UNPACK = esp-wireless-drivers-3rdparty
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WIRELESS_DRV_ID = 2b53111
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File diff suppressed because it is too large
Load Diff
@@ -30,6 +30,9 @@
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/timers/rtc.h>
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#include <sys/types.h>
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#include <time.h>
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#include "hardware/esp32c3_soc.h"
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#ifndef __ASSEMBLY__
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@@ -137,6 +140,31 @@ struct esp32c3_cpu_freq_config_s
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uint32_t freq_mhz; /* CPU clock frequency */
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};
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#ifdef CONFIG_RTC_ALARM
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/* The form of an alarm callback */
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typedef CODE void (*alm_callback_t)(FAR void *arg, unsigned int alarmid);
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enum alm_id_e
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{
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RTC_ALARM0 = 0, /* RTC ALARM 0 */
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RTC_ALARM1 = 1, /* RTC ALARM 1 */
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RTC_ALARM_LAST,
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};
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/* Structure used to pass parameters to set an alarm */
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struct alm_setalarm_s
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{
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int as_id; /* enum alm_id_e */
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struct timespec as_time; /* Alarm expiration time */
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alm_callback_t as_cb; /* Callback (if non-NULL) */
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FAR void *as_arg; /* Argument for callback */
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};
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#endif /* CONFIG_RTC_ALARM */
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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@@ -444,6 +472,187 @@ void esp32c3_rtc_sleep_set_wakeup_time(uint64_t t);
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uint64_t esp32c3_rtc_get_time_us(void);
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/****************************************************************************
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* Name: esp32c3_rtc_set_boot_time
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*
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* Description:
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* Set time to RTC register to replace the original boot time.
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*
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* Input Parameters:
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* time_us - set time in microseconds.
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void esp32c3_rtc_set_boot_time(uint64_t time_us);
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/****************************************************************************
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* Name: esp32c3_rtc_get_boot_time
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*
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* Description:
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* Get time of RTC register to indicate the original boot time.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* time_us - get time in microseconds.
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*
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****************************************************************************/
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uint64_t esp32c3_rtc_get_boot_time(void);
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#ifdef CONFIG_RTC_DRIVER
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/****************************************************************************
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* Name: up_rtc_time
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*
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* Description:
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* Get the current time in seconds. This is similar to the standard time()
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* function. This interface is only required if the low-resolution
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* RTC/counter hardware implementation selected. It is only used by the
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* RTOS during initialization to set up the system time when CONFIG_RTC is
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* set but neither CONFIG_RTC_HIRES nor CONFIG_RTC_DATETIME are set.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* The current time in seconds
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*
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****************************************************************************/
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#ifndef CONFIG_RTC_HIRES
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time_t up_rtc_time(void);
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#endif
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/****************************************************************************
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* Name: up_rtc_settime
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*
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* Description:
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* Set the RTC to the provided time. All RTC implementations must be
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* able to set their time based on a standard timespec.
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*
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* Input Parameters:
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* tp - the time to use
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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****************************************************************************/
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int up_rtc_settime(FAR const struct timespec *ts);
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/****************************************************************************
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* Name: up_rtc_initialize
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*
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* Description:
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* Initialize the hardware RTC per the selected configuration.
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* This function is called once during the OS initialization sequence
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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****************************************************************************/
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int up_rtc_initialize(void);
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/****************************************************************************
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* Name: up_rtc_gettime
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*
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* Description:
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* Get the current time from the high resolution RTC clock/counter. This
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* interface is only supported by the high-resolution RTC/counter hardware
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* implementation. It is used to replace the system timer.
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*
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* Input Parameters:
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* tp - The location to return the high resolution time value.
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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****************************************************************************/
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#ifdef CONFIG_RTC_HIRES
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int up_rtc_gettime(FAR struct timespec *tp);
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#endif
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#ifdef CONFIG_RTC_ALARM
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/****************************************************************************
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* Name: up_rtc_setalarm
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*
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* Description:
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* Set up an alarm.
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*
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* Input Parameters:
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* alminfo - Information about the alarm configuration.
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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****************************************************************************/
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int up_rtc_setalarm(FAR struct alm_setalarm_s *alminfo);
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/****************************************************************************
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* Name: up_rtc_cancelalarm
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*
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* Description:
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* Cancel an alaram.
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*
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* Input Parameters:
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* alarmid - Identifies the alarm to be cancelled
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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****************************************************************************/
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int up_rtc_cancelalarm(enum alm_id_e alarmid);
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/****************************************************************************
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* Name: up_rtc_rdalarm
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*
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* Description:
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* Query an alarm configured in hardware.
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*
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* Input Parameters:
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* tp - Location to return the timer match register.
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* alarmid - Identifies the alarm to be cancelled
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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****************************************************************************/
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int up_rtc_rdalarm(FAR struct timespec *tp, uint32_t alarmid);
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#endif /* CONFIG_RTC_ALARM */
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/****************************************************************************
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* Name: up_rtc_timer_init
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*
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* Description:
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* Init RTC timer.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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****************************************************************************/
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int up_rtc_timer_init(void);
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#endif /* CONFIG_RTC_DRIVER */
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#ifdef __cplusplus
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}
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#endif
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File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,56 @@
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/****************************************************************************
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* arch/risc-v/src/esp32c3/esp32c3_rtc_lowerhalf.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_RISCV_SRC_ESP32C3_ESP32C3_RTC_LOWERHALF_H
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#define __ARCH_RISCV_SRC_ESP32C3_ESP32C3_RTC_LOWERHALF_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifdef CONFIG_RTC_DRIVER
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: esp32c3_rtc_driverinit
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*
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* Description:
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* Bind the configuration timer to a timer lower half instance and
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* register the timer drivers at 'devpath'
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* Zero (OK) is returned on success; A negated errno value is returned
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* to indicate the nature of any failure.
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*
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****************************************************************************/
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int esp32c3_rtc_driverinit(void);
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#endif /* CONFIG_RTC_DRIVER */
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#endif /* __ARCH_RISCV_SRC_ESP32C3_ESP32C3_RTC_LOWERHALF_H */
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@@ -0,0 +1,50 @@
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#
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# This file is autogenerated: PLEASE DO NOT EDIT IT.
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#
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# You can use "make menuconfig" to make any modifications to the installed .config file.
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# You can then do "make savedefconfig" to generate a new defconfig file that includes your
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# modifications.
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#
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# CONFIG_NSH_ARGCAT is not set
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# CONFIG_NSH_CMDOPT_HEXDUMP is not set
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# CONFIG_NSH_CMDPARMS is not set
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CONFIG_ARCH="risc-v"
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CONFIG_ARCH_BOARD="esp32c3-devkit"
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CONFIG_ARCH_BOARD_ESP32C3_DEVKIT=y
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CONFIG_ARCH_CHIP="esp32c3"
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CONFIG_ARCH_CHIP_ESP32C3=y
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CONFIG_ARCH_CHIP_ESP32C3WROOM02=y
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CONFIG_ARCH_INTERRUPTSTACK=1536
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CONFIG_ARCH_RISCV=y
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CONFIG_ARCH_STACKDUMP=y
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CONFIG_BOARD_LOOPSPERMSEC=15000
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CONFIG_BUILTIN=y
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CONFIG_DEV_ZERO=y
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CONFIG_ESP32C3_RT_TIMER=y
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CONFIG_EXAMPLES_ALARM=y
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CONFIG_FS_PROCFS=y
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CONFIG_IDLETHREAD_STACKSIZE=2048
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CONFIG_INTELHEX_BINARY=y
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CONFIG_LIBC_PERROR_STDOUT=y
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CONFIG_LIBC_STRERROR=y
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CONFIG_MAX_TASKS=16
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CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
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CONFIG_NSH_ARCHINIT=y
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CONFIG_NSH_BUILTIN_APPS=y
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CONFIG_NSH_FILEIOSIZE=512
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CONFIG_NSH_READLINE=y
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CONFIG_NSH_STRERROR=y
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CONFIG_PREALLOC_TIMERS=0
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CONFIG_RAW_BINARY=y
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CONFIG_RR_INTERVAL=200
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CONFIG_RTC=y
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CONFIG_RTC_ALARM=y
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CONFIG_RTC_DRIVER=y
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CONFIG_RTC_NALARMS=2
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CONFIG_SCHED_WAITPID=y
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CONFIG_START_DAY=29
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CONFIG_START_MONTH=11
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CONFIG_START_YEAR=2019
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CONFIG_SYSTEM_NSH=y
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CONFIG_UART0_SERIAL_CONSOLE=y
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CONFIG_USER_ENTRYPOINT="nsh_main"
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@@ -56,6 +56,10 @@
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#include "esp32c3_rtc.h"
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#ifdef CONFIG_RTC_DRIVER
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# include "esp32c3_rtc_lowerhalf.h"
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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@@ -328,6 +332,17 @@ int esp32c3_bringup(void)
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}
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#endif /* CONFIG_ESP32C3_ADC */
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#ifdef CONFIG_RTC_DRIVER
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/* Instantiate the ESP32-C3 RTC driver */
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ret = esp32c3_rtc_driverinit();
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if (ret < 0)
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{
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syslog(LOG_ERR,
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"ERROR: Failed to Instantiate the RTC driver: %d\n", ret);
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}
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#endif
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/* If we got here then perhaps not all initialization was successful, but
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* at least enough succeeded to bring-up NSH with perhaps reduced
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* capabilities.
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