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Nimble: Reduce BLE power usage

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This configures Nimble to enable the HFCLOCK and other
Bluetooth peripherals only when needed, but 1500 us in advance.
This time is recommended by the Mynewt docs.
This commit is contained in:
Christoph Honal 2022-03-21 14:05:49 +01:00 committed by JF
parent 9b92861753
commit 118adb96cf
3 changed files with 15 additions and 2 deletions
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1
src/CMakeLists.txt
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@ -780,6 +780,7 @@ add_definitions(-DNRF52 -DNRF52832 -DNRF52832_XXAA -DNRF52_PAN_74 -DNRF52_PAN_64
add_definitions(-DFREERTOS) add_definitions(-DFREERTOS)
add_definitions(-D__STACK_SIZE=1024) add_definitions(-D__STACK_SIZE=1024)
add_definitions(-D__HEAP_SIZE=4096) add_definitions(-D__HEAP_SIZE=4096)
add_definitions(-DMYNEWT_VAL_BLE_LL_RFMGMT_ENABLE_TIME=1500)
# Note: Only use this for debugging # Note: Only use this for debugging
# Derive the low frequency clock from the main clock (SYNT) # Derive the low frequency clock from the main clock (SYNT)

10
src/libs/mynewt-nimble/porting/npl/freertos/include/nimble/nimble_npl_os.h
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@ -37,6 +37,8 @@ extern "C" {
#define BLE_NPL_TIME_FOREVER portMAX_DELAY #define BLE_NPL_TIME_FOREVER portMAX_DELAY
extern volatile int ble_npl_in_critical;
/* This should be compatible with TickType_t */ /* This should be compatible with TickType_t */
typedef uint32_t ble_npl_time_t; typedef uint32_t ble_npl_time_t;
typedef int32_t ble_npl_stime_t; typedef int32_t ble_npl_stime_t;
@ -282,14 +284,22 @@ static inline uint32_t
ble_npl_hw_enter_critical(void) ble_npl_hw_enter_critical(void)
{ {
//vPortEnterCritical(); //vPortEnterCritical();
++ble_npl_in_critical;
return npl_freertos_hw_enter_critical(); return npl_freertos_hw_enter_critical();
} }
static inline void static inline void
ble_npl_hw_exit_critical(uint32_t ctx) ble_npl_hw_exit_critical(uint32_t ctx)
{ {
--ble_npl_in_critical;
npl_freertos_hw_exit_critical(ctx); npl_freertos_hw_exit_critical(ctx);
}
static inline bool
ble_npl_hw_is_in_critical(void)
{
// Do the same as RIOT and keep track of the critical state manually
return (ble_npl_in_critical > 0);
} }
#ifdef __cplusplus #ifdef __cplusplus

2
src/libs/mynewt-nimble/porting/npl/freertos/src/npl_os_freertos.c
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@ -22,6 +22,8 @@
#include <string.h> #include <string.h>
#include "nimble/nimble_npl.h" #include "nimble/nimble_npl.h"
volatile int ble_npl_in_critical = 0;
static inline bool static inline bool
in_isr(void) in_isr(void)
{ {