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Bluetooth: Controller: Ticker first expire with remainder

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To acheive microsecond or fine timing for first expire
timeout, pass remainder value of the coarse tick to a new
ticker_start_us() interface. The new interface is available
with BT_TICKER_EXT feature enabled.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
This commit is contained in:
Vinayak Kariappa Chettimada
2023-03-12 10:34:32 +05:30
committed by Carles Cufí
parent 285649c894
commit 4e65cae32a
3 changed files with 104 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
subsys/bluetooth/controller/Kconfig.ll_sw_split
View File

@@ -786,6 +786,12 @@ config BT_TICKER_UPDATE
help
This option enables Ticker Update interface.
config BT_TICKER_REMAINDER
bool "Ticker Remainder"
help
This option enables Ticker Start interface remainder parameter for
first expire timeout.
config BT_TICKER_JOB_IDLE_GET
bool "Ticker Job Idle Get"
default y if BT_TICKER_LOW_LAT

79
subsys/bluetooth/controller/ticker/ticker.c
View File

@@ -157,11 +157,17 @@ struct ticker_user_op_start {
uint16_t lazy; /* Periodic latency in number of
* periods
*/
#if defined(CONFIG_BT_TICKER_REMAINDER)
uint32_t remainder_first; /* Sub-microsecond tick remainder */
#endif /* CONFIG_BT_TICKER_REMAINDER */
#if !defined(CONFIG_BT_TICKER_SLOT_AGNOSTIC)
uint32_t ticks_slot; /* Air-time reservation ticks */
#endif /* CONFIG_BT_TICKER_SLOT_AGNOSTIC */
ticker_timeout_func fp_timeout_func; /* Timeout callback function */
void *context; /* Context passed in timeout callback */
#if defined(CONFIG_BT_TICKER_EXT)
struct ticker_ext *ext_data; /* Ticker extension data instance */
#endif /* CONFIG_BT_TICKER_EXT */
@@ -2235,7 +2241,11 @@ static inline uint32_t ticker_job_op_start(struct ticker_instance *instance,
ticker->ticks_to_expire = start->ticks_first;
ticker->ticks_to_expire_minus = 0U;
ticks_to_expire_prep(ticker, ticks_current, start->ticks_at_start);
#if defined(CONFIG_BT_TICKER_REMAINDER)
ticker->remainder_current = start->remainder_first;
#else /* !CONFIG_BT_TICKER_REMAINDER */
ticker->remainder_current = 0U;
#endif /* !CONFIG_BT_TICKER_REMAINDER */
ticker->lazy_current = 0U;
ticker->force = 1U;
@@ -3312,6 +3322,32 @@ uint8_t ticker_start(uint8_t instance_index, uint8_t user_id, uint8_t ticker_id,
NULL);
}
static uint8_t start_us(uint8_t instance_index, uint8_t user_id,
uint8_t ticker_id, uint32_t ticks_anchor,
uint32_t ticks_first, uint32_t remainder_first,
uint32_t ticks_periodic, uint32_t remainder_periodic,
uint16_t lazy, uint32_t ticks_slot,
ticker_timeout_func fp_timeout_func, void *context,
ticker_op_func fp_op_func, void *op_context,
struct ticker_ext *ext_data);
uint8_t ticker_start_us(uint8_t instance_index, uint8_t user_id,
uint8_t ticker_id, uint32_t ticks_anchor,
uint32_t ticks_first, uint32_t remainder_first,
uint32_t ticks_periodic, uint32_t remainder_periodic,
uint16_t lazy, uint32_t ticks_slot,
ticker_timeout_func fp_timeout_func, void *context,
ticker_op_func fp_op_func, void *op_context)
{
return start_us(instance_index, user_id, ticker_id, ticks_anchor,
ticks_first, remainder_first,
ticks_periodic, remainder_periodic,
lazy, ticks_slot,
fp_timeout_func, context,
fp_op_func, op_context,
NULL);
}
uint8_t ticker_start_ext(uint8_t instance_index, uint8_t user_id, uint8_t ticker_id,
uint32_t ticks_anchor, uint32_t ticks_first,
uint32_t ticks_periodic, uint32_t remainder_periodic,
@@ -3319,13 +3355,49 @@ uint8_t ticker_start_ext(uint8_t instance_index, uint8_t user_id, uint8_t ticker
ticker_timeout_func fp_timeout_func, void *context,
ticker_op_func fp_op_func, void *op_context,
struct ticker_ext *ext_data)
#else
{
return start_us(instance_index, user_id, ticker_id, ticks_anchor,
ticks_first, 0U, ticks_periodic, remainder_periodic,
lazy, ticks_slot,
fp_timeout_func, context,
fp_op_func, op_context,
ext_data);
}
static uint8_t start_us(uint8_t instance_index, uint8_t user_id,
uint8_t ticker_id, uint32_t ticks_anchor,
uint32_t ticks_first, uint32_t remainder_first,
uint32_t ticks_periodic, uint32_t remainder_periodic,
uint16_t lazy, uint32_t ticks_slot,
ticker_timeout_func fp_timeout_func, void *context,
ticker_op_func fp_op_func, void *op_context,
struct ticker_ext *ext_data)
#else /* !CONFIG_BT_TICKER_EXT */
uint8_t ticker_start(uint8_t instance_index, uint8_t user_id, uint8_t ticker_id,
uint32_t ticks_anchor, uint32_t ticks_first, uint32_t ticks_periodic,
uint32_t remainder_periodic, uint16_t lazy, uint32_t ticks_slot,
ticker_timeout_func fp_timeout_func, void *context,
ticker_op_func fp_op_func, void *op_context)
#endif
{
return ticker_start_us(instance_index, user_id,
ticker_id, ticks_anchor,
ticks_first, 0U,
ticks_periodic, remainder_periodic,
lazy, ticks_slot,
fp_timeout_func, context,
fp_op_func, op_context);
}
uint8_t ticker_start_us(uint8_t instance_index, uint8_t user_id,
uint8_t ticker_id, uint32_t ticks_anchor,
uint32_t ticks_first, uint32_t remainder_first,
uint32_t ticks_periodic, uint32_t remainder_periodic,
uint16_t lazy, uint32_t ticks_slot,
ticker_timeout_func fp_timeout_func, void *context,
ticker_op_func fp_op_func, void *op_context)
#endif /* !CONFIG_BT_TICKER_EXT */
{
struct ticker_instance *instance = &_instance[instance_index];
struct ticker_user_op *user_op;
@@ -3348,6 +3420,9 @@ uint8_t ticker_start(uint8_t instance_index, uint8_t user_id, uint8_t ticker_id,
user_op->id = ticker_id;
user_op->params.start.ticks_at_start = ticks_anchor;
user_op->params.start.ticks_first = ticks_first;
#if defined(CONFIG_BT_TICKER_REMAINDER)
user_op->params.start.remainder_first = remainder_first;
#endif /* !CONFIG_BT_TICKER_REMAINDER */
user_op->params.start.ticks_periodic = ticks_periodic;
user_op->params.start.remainder_periodic = remainder_periodic;
#if !defined(CONFIG_BT_TICKER_SLOT_AGNOSTIC)

27
subsys/bluetooth/controller/ticker/ticker.h
View File

@@ -64,16 +64,24 @@
#if defined(CONFIG_BT_TICKER_EXT)
#if defined(CONFIG_BT_TICKER_SLOT_AGNOSTIC)
#define TICKER_USER_OP_T_SIZE 44
#else
#else /* !CONFIG_BT_TICKER_SLOT_AGNOSTIC */
#if defined(CONFIG_BT_TICKER_REMAINDER)
#define TICKER_USER_OP_T_SIZE 52
#else /* !CONFIG_BT_TICKER_REMAINDER */
#define TICKER_USER_OP_T_SIZE 48
#endif /* CONFIG_BT_TICKER_SLOT_AGNOSTIC */
#else
#endif /* !CONFIG_BT_TICKER_REMAINDER */
#endif /* !CONFIG_BT_TICKER_SLOT_AGNOSTIC */
#else /* !CONFIG_BT_TICKER_EXT */
#if defined(CONFIG_BT_TICKER_SLOT_AGNOSTIC)
#define TICKER_USER_OP_T_SIZE 40
#else
#else /* !CONFIG_BT_TICKER_SLOT_AGNOSTIC */
#if defined(CONFIG_BT_TICKER_REMAINDER)
#define TICKER_USER_OP_T_SIZE 48
#else /* !CONFIG_BT_TICKER_REMAINDER */
#define TICKER_USER_OP_T_SIZE 44
#endif /* CONFIG_BT_TICKER_SLOT_AGNOSTIC */
#endif /* CONFIG_BT_TICKER_EXT */
#endif /* !CONFIG_BT_TICKER_REMAINDER */
#endif /* !CONFIG_BT_TICKER_SLOT_AGNOSTIC */
#endif /* !CONFIG_BT_TICKER_EXT */
#define TICKER_CALL_ID_NONE 0
#define TICKER_CALL_ID_ISR 1
@@ -158,6 +166,13 @@ uint8_t ticker_start(uint8_t instance_index, uint8_t user_id,
uint32_t ticks_slot, ticker_timeout_func fp_timeout_func,
void *context, ticker_op_func fp_op_func,
void *op_context);
uint8_t ticker_start_us(uint8_t instance_index, uint8_t user_id,
uint8_t ticker_id, uint32_t ticks_anchor,
uint32_t ticks_first, uint32_t remainder_first,
uint32_t ticks_periodic, uint32_t remainder_periodic,
uint16_t lazy, uint32_t ticks_slot,
ticker_timeout_func fp_timeout_func, void *context,
ticker_op_func fp_op_func, void *op_context);
uint8_t ticker_update(uint8_t instance_index, uint8_t user_id,
uint8_t ticker_id, uint32_t ticks_drift_plus,
uint32_t ticks_drift_minus, uint32_t ticks_slot_plus,